From 59ed0acb5658a1e7b2da683ff460208157ea0364 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Arno=20T=C3=B6ll?= <arno@debian.org>
Date: Wed, 23 Jul 2014 15:43:00 +0000
Subject: [PATCH] Import trafficserver_5.0.1.orig.tar.bz2

[dgit import orig trafficserver_5.0.1.orig.tar.bz2]
---
 .clang-format                                 |    25 +
 .gitmodules                                   |     3 +
 .indent.pro                                   |    29 +
 .vimrc                                        |     7 +
 CHANGES                                       |  3744 ++
 CRUFT.txt                                     |    49 +
 INSTALL                                       |    88 +
 LAYOUT                                        |    32 +
 LICENSE                                       |   427 +
 Makefile.am                                   |   120 +
 Makefile.in                                   |  1146 +
 NOTICE                                        |    63 +
 README                                        |   283 +
 README-EC2                                    |   134 +
 REVIEWERS                                     |   117 +
 STATUS                                        |    65 +
 Vagrantfile                                   |   142 +
 aclocal.m4                                    |  1428 +
 build/aux/ar-lib                              |   270 +
 build/aux/compile                             |   347 +
 build/aux/config.guess                        |  1535 +
 build/aux/config.sub                          |  1790 +
 build/aux/depcomp                             |   791 +
 build/aux/install-sh                          |   527 +
 build/aux/ltmain.sh                           |  9655 +++++
 build/aux/missing                             |   215 +
 build/aux/test-driver                         |   127 +
 build/aux/ylwrap                              |   249 +
 build/ax_boost_base.m4                        |   258 +
 build/ax_check_openssl.m4                     |   136 +
 build/ax_compare_version.m4                   |   177 +
 build/ax_compiler_vendor.m4                   |    84 +
 build/ax_cxx_compile_stdcxx_11.m4             |   116 +
 build/ax_lib_curl.m4                          |    38 +
 build/ax_lib_readline.m4                      |   110 +
 build/ax_path_generic.m4                      |   164 +
 build/ax_perl_modules.m4                      |    51 +
 build/ax_with_curses.m4                       |   518 +
 build/common.m4                               |   585 +
 build/crypto.m4                               |   123 +
 build/jemalloc.m4                             |    78 +
 build/libtool.m4                              |  7992 ++++
 build/ltoptions.m4                            |   384 +
 build/ltsugar.m4                              |   123 +
 build/ltversion.m4                            |    23 +
 build/lt~obsolete.m4                          |    98 +
 build/lzma.m4                                 |   100 +
 build/network.m4                              |   125 +
 build/pcre.m4                                 |   114 +
 build/pkg.m4                                  |   199 +
 build/plugins.mk                              |    37 +
 build/tcl.m4                                  |  3306 ++
 build/tcmalloc.m4                             |    54 +
 build/xml.m4                                  |   200 +
 build/zlib.m4                                 |   100 +
 cmd/Makefile.am                               |    18 +
 cmd/Makefile.in                               |   866 +
 cmd/traffic_cop/Makefile.am                   |    43 +
 cmd/traffic_cop/Makefile.in                   |   905 +
 cmd/traffic_cop/traffic_cop.cc                |  1840 +
 cmd/traffic_line/Makefile.am                  |    36 +
 cmd/traffic_line/Makefile.in                  |   902 +
 cmd/traffic_line/traffic_line.cc              |   376 +
 cmd/traffic_top/Makefile.am                   |    41 +
 cmd/traffic_top/Makefile.in                   |   922 +
 cmd/traffic_top/README                        |     4 +
 cmd/traffic_top/stats.h                       |   456 +
 cmd/traffic_top/traffic_top.cc                |   465 +
 config.layout                                 |   279 +
 configure                                     | 30876 ++++++++++++++++
 configure.ac                                  |  2000 +
 contrib/install_trafficserver.sh              |   401 +
 contrib/make-ssl-multicert                    |    47 +
 contrib/manifests/debian.pp                   |    43 +
 contrib/manifests/omnios.sh                   |    38 +
 contrib/manifests/redhat.pp                   |    61 +
 contrib/python/compare_RecordsConfigcc.py     |   119 +
 contrib/python/compare_records_config.py      |    67 +
 contrib/set_trafficserver.sh                  |   100 +
 doc/Doxyfile.in                               |  1283 +
 doc/Makefile.am                               |   147 +
 doc/Makefile.in                               |  1048 +
 doc/admin/cluster-howto.en.rst                |   168 +
 doc/admin/configuring-cache.en.rst            |   389 +
 doc/admin/configuring-traffic-server.en.rst   |    83 +
 doc/admin/event-logging-formats.en.rst        |   413 +
 doc/admin/explicit-proxy-caching.en.rst       |    94 +
 doc/admin/faqs.en.rst                         |   392 +
 doc/admin/forward-proxy.en.rst                |    80 +
 doc/admin/getting-started.en.rst              |   189 +
 doc/admin/hierachical-caching.en.rst          |   180 +
 doc/admin/http-proxy-caching.en.rst           |   846 +
 doc/admin/index.en.rst                        |   319 +
 doc/admin/monitoring-traffic.en.rst           |   104 +
 doc/admin/performance-tuning.en.rst           |    54 +
 doc/admin/reverse-proxy-http-redirects.en.rst |   317 +
 doc/admin/security-options.en.rst             |   228 +
 doc/admin/session-protocol.en.rst             |    55 +
 .../traffic-server-error-messages.en.rst      |   373 +
 doc/admin/transparent-proxy.en.rst            |   113 +
 doc/admin/transparent-proxy/bridge.en.rst     |   177 +
 doc/admin/transparent-proxy/build.en.rst      |    60 +
 .../transparent-proxy/router-inline.en.rst    |    91 +
 .../wccp-configuration.en.rst                 |   155 +
 doc/admin/working-log-files.en.rst            |  1157 +
 doc/arch/cache/cache-api.en.rst               |    42 +
 doc/arch/cache/cache-appendix.en.rst          |    99 +
 doc/arch/cache/cache-arch.en.rst              |   854 +
 doc/arch/cache/cache-data-structures.en.rst   |   164 +
 doc/arch/cache/cache.en.rst                   |    33 +
 doc/arch/cache/common.defs                    |    48 +
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 doc/arch/cache/ram-cache.en.rst               |    88 +
 doc/arch/cache/tier-storage.en.rst            |   118 +
 doc/arch/hacking/config-var-impl.en.rst       |   283 +
 doc/arch/hacking/index.en.rst                 |    30 +
 doc/arch/index.en.rst                         |    37 +
 doc/arch/proposals/hostdb.en.rst              |   168 +
 doc/checkvers.py                              |    41 +
 doc/conf.py                                   |   381 +
 doc/doap.rdf                                  |    64 +
 doc/dot/ResponseDiag.dot                      |    70 +
 doc/dot/SimpleStateDiag.dot                   |    65 +
 doc/dot/SimpleStateDiagAPI.dot                |    86 +
 doc/ext/traffic-server.py                     |   238 +
 doc/glossary.en.rst                           |   101 +
 doc/index.rst                                 |    53 +
 .../ja/LC_MESSAGES/admin/cluster-howto.en.po  |   308 +
 .../LC_MESSAGES/admin/configuring-cache.en.po |   593 +
 .../admin/configuring-traffic-server.en.po    |   125 +
 .../admin/event-logging-formats.en.po         |  1022 +
 .../admin/explicit-proxy-caching.en.po        |   123 +
 doc/locale/ja/LC_MESSAGES/admin/faqs.en.po    |   760 +
 .../ja/LC_MESSAGES/admin/forward-proxy.en.po  |   154 +
 .../LC_MESSAGES/admin/getting-started.en.po   |   348 +
 .../admin/hierachical-caching.en.po           |   184 +
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 doc/locale/ja/LC_MESSAGES/admin/index.en.po   |   643 +
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 .../admin/performance-tuning.en.po            |    72 +
 .../admin/reverse-proxy-http-redirects.en.po  |   626 +
 .../LC_MESSAGES/admin/security-options.en.po  |   493 +
 .../admin/traffic-server-error-messages.en.po |   872 +
 .../LC_MESSAGES/admin/transparent-proxy.en.po |   218 +
 .../admin/transparent-proxy/bridge.en.po      |   298 +
 .../admin/transparent-proxy/build.en.po       |   111 +
 .../transparent-proxy/router-inline.en.po     |   162 +
 .../wccp-configuration.en.po                  |   300 +
 .../LC_MESSAGES/admin/working-log-files.en.po |  1457 +
 .../admin/working-log-files/log-formats.en.po |   545 +
 .../ja/LC_MESSAGES/arch/cache/cache-api.en.po |    63 +
 .../arch/cache/cache-appendix.en.po           |   253 +
 .../LC_MESSAGES/arch/cache/cache-arch.en.po   |  2106 ++
 .../arch/cache/cache-data-structures.en.po    |   288 +
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 .../ja/LC_MESSAGES/arch/cache/ram-cache.en.po |   271 +
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 .../configuration/records.config.en.po        |  3488 ++
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 mgmt/RecordsConfig.cc                         |  2141 ++
 mgmt/RecordsConfig.h                          |    56 +
 mgmt/Rollback.cc                              |  1031 +
 mgmt/Rollback.h                               |   224 +
 mgmt/api/APITestCliRemote.cc                  |  2441 ++
 mgmt/api/CfgContextDefs.h                     |    74 +
 mgmt/api/CfgContextImpl.cc                    |  2592 ++
 mgmt/api/CfgContextImpl.h                     |   560 +
 mgmt/api/CfgContextManager.cc                 |   621 +
 mgmt/api/CfgContextManager.h                  |    77 +
 mgmt/api/CfgContextUtils.cc                   |  2854 ++
 mgmt/api/CfgContextUtils.h                    |   202 +
 mgmt/api/CoreAPI.cc                           |   908 +
 mgmt/api/CoreAPI.h                            |   105 +
 mgmt/api/CoreAPIRemote.cc                     |   851 +
 mgmt/api/CoreAPIShared.cc                     |   468 +
 mgmt/api/CoreAPIShared.h                      |    88 +
 mgmt/api/EventCallback.cc                     |   346 +
 mgmt/api/EventCallback.h                      |    85 +
 mgmt/api/EventControlMain.cc                  |   502 +
 mgmt/api/EventControlMain.h                   |    63 +
 mgmt/api/EventRegistration.cc                 |   166 +
 mgmt/api/EventRegistration.h                  |    49 +
 mgmt/api/GenericParser.cc                     |  1060 +
 mgmt/api/GenericParser.h                      |   304 +
 mgmt/api/INKMgmtAPI.cc                        |  2483 ++
 mgmt/api/INKMgmtAPIStub.cc                    |   799 +
 mgmt/api/Makefile.am                          |    93 +
 mgmt/api/Makefile.in                          |  1167 +
 mgmt/api/NetworkUtilsDefs.h                   |    87 +
 mgmt/api/NetworkUtilsLocal.cc                 |   775 +
 mgmt/api/NetworkUtilsLocal.h                  |    81 +
 mgmt/api/NetworkUtilsRemote.cc                |  1559 +
 mgmt/api/NetworkUtilsRemote.h                 |   109 +
 mgmt/api/TSControlMain.cc                     |  1002 +
 mgmt/api/TSControlMain.h                      |    76 +
 mgmt/api/include/Makefile.am                  |    22 +
 mgmt/api/include/Makefile.in                  |   811 +
 mgmt/api/include/mgmtapi.h                    |  1389 +
 mgmt/cluster/ClusterCom.cc                    |  2468 ++
 mgmt/cluster/ClusterCom.h                     |   188 +
 mgmt/cluster/Makefile.am                      |    39 +
 mgmt/cluster/Makefile.in                      |   873 +
 mgmt/cluster/VMap.cc                          |   892 +
 mgmt/cluster/VMap.h                           |   125 +
 mgmt/stats/Makefile.am                        |    43 +
 mgmt/stats/Makefile.in                        |   879 +
 mgmt/stats/StatProcessor.cc                   |   358 +
 mgmt/stats/StatProcessor.h                    |    94 +
 mgmt/stats/StatType.cc                        |  1199 +
 mgmt/stats/StatType.h                         |   231 +
 mgmt/stats/StatXML.cc                         |    82 +
 mgmt/stats/StatXML.h                          |    47 +
 mgmt/stats/spec                               |   236 +
 mgmt/utils/ExpandingArray.cc                  |    83 +
 mgmt/utils/ExpandingArray.h                   |    62 +
 mgmt/utils/Makefile.am                        |    53 +
 mgmt/utils/Makefile.in                        |   942 +
 mgmt/utils/MgmtHashTable.h                    |   187 +
 mgmt/utils/MgmtSocket.h                       |   199 +
 mgmt/utils/MgmtUtils.cc                       |   622 +
 mgmt/utils/MgmtUtils.h                        |    70 +
 mgmt/utils/WebMgmtUtils.cc                    |  1377 +
 mgmt/utils/WebMgmtUtils.h                     |   124 +
 mgmt/web2/Makefile.am                         |    54 +
 mgmt/web2/Makefile.in                         |   898 +
 mgmt/web2/WebCompatibility.cc                 |   227 +
 mgmt/web2/WebCompatibility.h                  |    89 +
 mgmt/web2/WebGlobals.h                        |   144 +
 mgmt/web2/WebHttp.cc                          |   631 +
 mgmt/web2/WebHttp.h                           |    45 +
 mgmt/web2/WebHttpContext.cc                   |   108 +
 mgmt/web2/WebHttpContext.h                    |    69 +
 mgmt/web2/WebHttpMessage.cc                   |   576 +
 mgmt/web2/WebHttpMessage.h                    |   287 +
 mgmt/web2/WebHttpSession.cc                   |   218 +
 mgmt/web2/WebHttpSession.h                    |    46 +
 mgmt/web2/WebIntrMain.cc                      |   617 +
 mgmt/web2/WebIntrMain.h                       |    42 +
 mgmt/web2/WebOverview.cc                      |   846 +
 mgmt/web2/WebOverview.h                       |   151 +
 mgmt/web2/WebUtils.cc                         |   115 +
 mgmt/web2/WebUtils.h                          |    53 +
 plugins/Makefile.am                           |    33 +
 plugins/Makefile.in                           |   869 +
 plugins/cacheurl/Makefile.am                  |    21 +
 plugins/cacheurl/Makefile.in                  |   934 +
 plugins/cacheurl/cacheurl.cc                  |   445 +
 plugins/cacheurl/cacheurl.config.example      |    39 +
 plugins/conf_remap/Makefile.am                |    21 +
 plugins/conf_remap/Makefile.in                |   935 +
 plugins/conf_remap/conf_remap.cc              |   349 +
 plugins/experimental/Makefile.am              |    40 +
 plugins/experimental/Makefile.in              |   874 +
 plugins/experimental/authproxy/Makefile.am    |    22 +
 plugins/experimental/authproxy/Makefile.in    |   953 +
 plugins/experimental/authproxy/authproxy.cc   |   887 +
 plugins/experimental/authproxy/utils.cc       |   216 +
 plugins/experimental/authproxy/utils.h        |   111 +
 .../experimental/background_fetch/Makefile.am |    21 +
 .../experimental/background_fetch/Makefile.in |   935 +
 .../background_fetch/background_fetch.cc      |   630 +
 plugins/experimental/balancer/Makefile.am     |    22 +
 plugins/experimental/balancer/Makefile.in     |   954 +
 plugins/experimental/balancer/balancer.cc     |   133 +
 plugins/experimental/balancer/balancer.h      |    46 +
 plugins/experimental/balancer/hash.cc         |   207 +
 plugins/experimental/balancer/roundrobin.cc   |    72 +
 .../experimental/buffer_upload/Makefile.am    |    21 +
 .../experimental/buffer_upload/Makefile.in    |   935 +
 plugins/experimental/buffer_upload/README     |    77 +
 .../buffer_upload/buffer_upload.cc            |  1225 +
 .../experimental/channel_stats/Makefile.am    |    21 +
 .../experimental/channel_stats/Makefile.in    |   935 +
 .../experimental/channel_stats/Makefile.tsxs  |    28 +
 plugins/experimental/channel_stats/README     |   105 +
 .../channel_stats/channel_stats.cc            |   825 +
 .../experimental/channel_stats/debug_macros.h |    73 +
 .../experimental/collapsed_connection/LICENSE |   203 +
 .../collapsed_connection/Makefile.am          |    25 +
 .../collapsed_connection/Makefile.in          |   942 +
 .../collapsed_connection/MurmurHash3.cc       |   234 +
 .../collapsed_connection/MurmurHash3.h        |    20 +
 .../experimental/collapsed_connection/NOTICE  |     9 +
 .../P_collapsed_connection.h                  |   123 +
 .../experimental/collapsed_connection/README  |    71 +
 .../collapsed_connection.cc                   |  1157 +
 .../collapsed_connection/default.config       |     5 +
 .../collapsed_connection/state.dot            |    40 +
 .../experimental/custom_redirect/Makefile.am  |    22 +
 .../experimental/custom_redirect/Makefile.in  |   935 +
 plugins/experimental/custom_redirect/README   |    41 +
 .../custom_redirect/custom_redirect.cc        |   173 +
 plugins/experimental/escalate/Makefile.am     |    22 +
 plugins/experimental/escalate/Makefile.in     |   934 +
 plugins/experimental/escalate/escalate.cc     |   220 +
 plugins/experimental/esi/Makefile.am          |    99 +
 plugins/experimental/esi/Makefile.in          |  1557 +
 plugins/experimental/esi/README               |     5 +
 plugins/experimental/esi/README.combo         |   106 +
 plugins/experimental/esi/combo_handler.cc     |   989 +
 plugins/experimental/esi/esi.cc               |  1811 +
 .../esi/fetcher/FetchedDataProcessor.h        |    41 +
 .../esi/fetcher/HttpDataFetcher.h             |    74 +
 .../esi/fetcher/HttpDataFetcherImpl.cc        |   357 +
 .../esi/fetcher/HttpDataFetcherImpl.h         |   148 +
 plugins/experimental/esi/handlers.cfg         |    27 +
 plugins/experimental/esi/lib/Attribute.h      |    44 +
 plugins/experimental/esi/lib/ComponentBase.h  |    60 +
 plugins/experimental/esi/lib/DocNode.cc       |   162 +
 plugins/experimental/esi/lib/DocNode.h        |   114 +
 plugins/experimental/esi/lib/EsiGzip.cc       |   151 +
 plugins/experimental/esi/lib/EsiGzip.h        |    60 +
 plugins/experimental/esi/lib/EsiParser.cc     |   656 +
 plugins/experimental/esi/lib/EsiParser.h      |   152 +
 plugins/experimental/esi/lib/EsiProcessor.cc  |   853 +
 plugins/experimental/esi/lib/EsiProcessor.h   |   168 +
 plugins/experimental/esi/lib/Expression.cc    |   256 +
 plugins/experimental/esi/lib/Expression.h     |   108 +
 plugins/experimental/esi/lib/FailureInfo.cc   |   109 +
 plugins/experimental/esi/lib/FailureInfo.h    |   113 +
 .../experimental/esi/lib/HandlerManager.cc    |    92 +
 plugins/experimental/esi/lib/HandlerManager.h |    75 +
 plugins/experimental/esi/lib/HttpHeader.h     |    45 +
 .../esi/lib/IncludeHandlerFactory.h           |    54 +
 .../esi/lib/SpecialIncludeHandler.h           |    73 +
 plugins/experimental/esi/lib/Stats.cc         |    69 +
 plugins/experimental/esi/lib/Stats.h          |    65 +
 plugins/experimental/esi/lib/StringHash.h     |    47 +
 plugins/experimental/esi/lib/Utils.cc         |   195 +
 plugins/experimental/esi/lib/Utils.h          |   118 +
 plugins/experimental/esi/lib/Variables.cc     |   446 +
 plugins/experimental/esi/lib/Variables.h      |   161 +
 plugins/experimental/esi/lib/gzip.cc          |   197 +
 plugins/experimental/esi/lib/gzip.h           |    69 +
 plugins/experimental/esi/serverIntercept.cc   |   357 +
 plugins/experimental/esi/serverIntercept.h    |    38 +
 plugins/experimental/esi/test/HandlerMap.cc   |    26 +
 plugins/experimental/esi/test/HandlerMap.h    |    37 +
 .../esi/test/StubIncludeHandler.cc            |    73 +
 .../esi/test/StubIncludeHandler.h             |    66 +
 .../esi/test/TestHandlerManager.cc            |    42 +
 .../esi/test/TestHttpDataFetcher.h            |    79 +
 plugins/experimental/esi/test/docnode_test.cc |   249 +
 plugins/experimental/esi/test/parser_test.cc  |  1591 +
 plugins/experimental/esi/test/print_funcs.cc  |    47 +
 plugins/experimental/esi/test/print_funcs.h   |    31 +
 .../experimental/esi/test/processor_test.cc   |  1134 +
 plugins/experimental/esi/test/sampleProb.cc   |   228 +
 plugins/experimental/esi/test/utils_test.cc   |   119 +
 plugins/experimental/esi/test/vars_test.cc    |   405 +
 plugins/experimental/geoip_acl/Makefile.am    |    26 +
 plugins/experimental/geoip_acl/Makefile.in    |   940 +
 plugins/experimental/geoip_acl/README         |    85 +
 plugins/experimental/geoip_acl/acl.cc         |   248 +
 plugins/experimental/geoip_acl/acl.h          |   130 +
 plugins/experimental/geoip_acl/examples       |    40 +
 plugins/experimental/geoip_acl/geoip_acl.cc   |   127 +
 plugins/experimental/geoip_acl/lulu.h         |    52 +
 plugins/experimental/healthchecks/Makefile.am |    25 +
 plugins/experimental/healthchecks/Makefile.in |   939 +
 plugins/experimental/healthchecks/README      |    21 +
 .../experimental/healthchecks/healthchecks.c  |   585 +
 plugins/experimental/hipes/Makefile.am        |    22 +
 plugins/experimental/hipes/Makefile.in        |   934 +
 plugins/experimental/hipes/README             |    25 +
 plugins/experimental/hipes/gen_escape.c       |    49 +
 plugins/experimental/hipes/hipes.cc           |   563 +
 plugins/experimental/memcached_remap/AUTHORS  |     7 +
 .../experimental/memcached_remap/Changelog    |     2 +
 plugins/experimental/memcached_remap/NOTICE   |     5 +
 plugins/experimental/memcached_remap/README   |   122 +
 .../memcached_remap/memcached_remap.cc        |   242 +
 .../experimental/memcached_remap/sample.py    |    34 +
 plugins/experimental/metalink/Makefile.am     |    21 +
 plugins/experimental/metalink/Makefile.in     |   934 +
 plugins/experimental/metalink/README          |    78 +
 plugins/experimental/metalink/metalink.cc     |   916 +
 .../metalink/test/chunkedEncoding             |    99 +
 .../metalink/test/chunkedEncodingDisconnect   |    97 +
 .../metalink/test/clientDisconnect            |    89 +
 .../experimental/metalink/test/contentLength  |   100 +
 .../metalink/test/contentLengthDisconnect     |    94 +
 .../test/finalChunkedEncodingDisconnect       |   112 +
 plugins/experimental/metalink/test/headers    |    75 +
 plugins/experimental/metalink/test/http09     |    85 +
 plugins/experimental/metalink/test/location   |   124 +
 plugins/experimental/metalink/test/longer     |    94 +
 .../experimental/metalink/test/notModified    |    77 +
 .../metalink/test/pipeliningDisconnect        |    93 +
 .../test/shortChunkedEncodingDisconnect       |    96 +
 .../metalink/test/shortClientDisconnect       |    85 +
 .../test/shortContentLengthDisconnect         |    93 +
 plugins/experimental/metalink/test/zero       |    90 +
 plugins/experimental/mysql_remap/AUTHORS      |     7 +
 plugins/experimental/mysql_remap/README       |    74 +
 plugins/experimental/mysql_remap/default.h    |    25 +
 .../experimental/mysql_remap/lib/dictionary.c |   428 +
 .../experimental/mysql_remap/lib/dictionary.h |   197 +
 .../experimental/mysql_remap/lib/iniparser.c  |   669 +
 .../experimental/mysql_remap/lib/iniparser.h  |   303 +
 .../experimental/mysql_remap/mysql_remap.cc   |   249 +
 plugins/experimental/mysql_remap/sample.ini   |    24 +
 .../mysql_remap/schema/import.sql             |   134 +
 .../experimental/regex_revalidate/Makefile.am |    21 +
 .../experimental/regex_revalidate/Makefile.in |   935 +
 .../regex_revalidate/regex_revalidate.c       |   594 +
 plugins/experimental/remap_stats/Makefile.am  |    25 +
 plugins/experimental/remap_stats/Makefile.in  |   939 +
 .../experimental/remap_stats/remap_stats.c    |   305 +
 plugins/experimental/s3_auth/Makefile.am      |    21 +
 plugins/experimental/s3_auth/Makefile.in      |   934 +
 plugins/experimental/s3_auth/s3_auth.cc       |   528 +
 plugins/experimental/spdy/Makefile.am         |    56 +
 plugins/experimental/spdy/TODO                |    20 +
 plugins/experimental/spdy/http.cc             |   307 +
 plugins/experimental/spdy/http.h              |    89 +
 plugins/experimental/spdy/io.cc               |    87 +
 plugins/experimental/spdy/io.h                |   164 +
 plugins/experimental/spdy/lib/base/atomic.h   |    57 +
 plugins/experimental/spdy/lib/base/inet.h     |    72 +
 plugins/experimental/spdy/lib/base/logging.cc |    48 +
 plugins/experimental/spdy/lib/base/logging.h  |    78 +
 plugins/experimental/spdy/lib/spdy/message.cc |   535 +
 plugins/experimental/spdy/lib/spdy/spdy.h     |   291 +
 plugins/experimental/spdy/lib/spdy/zstream.cc |   123 +
 plugins/experimental/spdy/lib/spdy/zstream.h  |   119 +
 plugins/experimental/spdy/protocol.cc         |   188 +
 plugins/experimental/spdy/protocol.h          |    47 +
 plugins/experimental/spdy/spdy.cc             |   395 +
 plugins/experimental/spdy/stream.cc           |   371 +
 plugins/experimental/spdy/strings.cc          |   100 +
 plugins/experimental/spdy/tests/stubs.cc      |    39 +
 .../experimental/spdy/tests/zstream_test.cc   |   227 +
 .../stale_while_revalidate/Makefile.am        |    21 +
 .../stale_while_revalidate/Makefile.in        |   936 +
 .../stale_while_revalidate/Makefile.tsxs      |    27 +
 .../stale_while_revalidate/README             |    26 +
 .../stale_while_revalidate.c                  |   744 +
 .../stale_while_revalidate/test_server.js     |    42 +
 plugins/experimental/ts_lua/Makefile.am       |    50 +
 plugins/experimental/ts_lua/Makefile.in       |  1141 +
 plugins/experimental/ts_lua/README.md         |     5 +
 .../ts_lua/business/mediaslice.lua            |   155 +
 .../experimental/ts_lua/business/sethost.lua  |    41 +
 .../ts_lua/example/test_cache_lookup.lua      |    44 +
 .../ts_lua/example/test_client_socket.lua     |    40 +
 .../ts_lua/example/test_closure.lua           |    23 +
 .../ts_lua/example/test_creq_method.lua       |    40 +
 .../ts_lua/example/test_creq_uri.lua          |    40 +
 .../ts_lua/example/test_creq_uri_args.lua     |    36 +
 .../ts_lua/example/test_global_hdr.lua        |    37 +
 .../ts_lua/example/test_global_hook.lua       |    88 +
 .../experimental/ts_lua/example/test_hdr.lua  |    37 +
 .../ts_lua/example/test_intercept.lua         |    42 +
 .../experimental/ts_lua/example/test_post.lua |    48 +
 .../ts_lua/example/test_ret_403.lua           |    38 +
 .../ts_lua/example/test_server_intercept.lua  |    41 +
 .../ts_lua/example/test_transform.lua         |    49 +
 .../ts_lua/example/test_txn_hook.lua          |   100 +
 plugins/experimental/ts_lua/ts_lua.c          |   467 +
 .../ts_lua/ts_lua_cached_response.c           |   223 +
 .../ts_lua/ts_lua_cached_response.h           |    27 +
 .../ts_lua/ts_lua_client_request.c            |   784 +
 .../ts_lua/ts_lua_client_request.h            |    27 +
 .../ts_lua/ts_lua_client_response.c           |   395 +
 .../ts_lua/ts_lua_client_response.h           |    27 +
 plugins/experimental/ts_lua/ts_lua_common.h   |   220 +
 plugins/experimental/ts_lua/ts_lua_context.c  |    93 +
 plugins/experimental/ts_lua/ts_lua_context.h  |    28 +
 plugins/experimental/ts_lua/ts_lua_crypto.c   |   177 +
 plugins/experimental/ts_lua/ts_lua_crypto.h   |    27 +
 plugins/experimental/ts_lua/ts_lua_hook.c     |   281 +
 plugins/experimental/ts_lua/ts_lua_hook.h     |    27 +
 plugins/experimental/ts_lua/ts_lua_http.c     |   283 +
 plugins/experimental/ts_lua/ts_lua_http.h     |    27 +
 .../experimental/ts_lua/ts_lua_http_cntl.c    |   101 +
 .../experimental/ts_lua/ts_lua_http_cntl.h    |    27 +
 .../experimental/ts_lua/ts_lua_http_config.c  |   304 +
 .../experimental/ts_lua/ts_lua_http_config.h  |    27 +
 .../ts_lua/ts_lua_http_intercept.c            |   335 +
 .../ts_lua/ts_lua_http_intercept.h            |    27 +
 plugins/experimental/ts_lua/ts_lua_log.c      |   116 +
 plugins/experimental/ts_lua/ts_lua_log.h      |    27 +
 plugins/experimental/ts_lua/ts_lua_mgmt.c     |   106 +
 plugins/experimental/ts_lua/ts_lua_mgmt.h     |    27 +
 plugins/experimental/ts_lua/ts_lua_misc.c     |   230 +
 plugins/experimental/ts_lua/ts_lua_misc.h     |    27 +
 plugins/experimental/ts_lua/ts_lua_package.c  |   297 +
 plugins/experimental/ts_lua/ts_lua_package.h  |    27 +
 plugins/experimental/ts_lua/ts_lua_remap.c    |    59 +
 plugins/experimental/ts_lua/ts_lua_remap.h    |    27 +
 .../ts_lua/ts_lua_server_request.c            |   404 +
 .../ts_lua/ts_lua_server_request.h            |    27 +
 .../ts_lua/ts_lua_server_response.c           |   319 +
 .../ts_lua/ts_lua_server_response.h           |    27 +
 plugins/experimental/ts_lua/ts_lua_string.c   |    32 +
 plugins/experimental/ts_lua/ts_lua_string.h   |    30 +
 .../experimental/ts_lua/ts_lua_transform.c    |   172 +
 .../experimental/ts_lua/ts_lua_transform.h    |    27 +
 plugins/experimental/ts_lua/ts_lua_util.c     |   715 +
 plugins/experimental/ts_lua/ts_lua_util.h     |    52 +
 plugins/experimental/url_sig/Makefile.am      |    21 +
 plugins/experimental/url_sig/Makefile.in      |   934 +
 plugins/experimental/url_sig/Makefile.tsxs    |    26 +
 plugins/experimental/url_sig/README           |   183 +
 plugins/experimental/url_sig/genkeys.pl       |    29 +
 plugins/experimental/url_sig/sign.pl          |   101 +
 plugins/experimental/url_sig/url_sig.c        |   476 +
 plugins/experimental/url_sig/url_sig.h        |    52 +
 plugins/experimental/xdebug/Makefile.am       |    22 +
 plugins/experimental/xdebug/Makefile.in       |   934 +
 plugins/experimental/xdebug/xdebug.cc         |   216 +
 plugins/gzip/Makefile.am                      |    21 +
 plugins/gzip/Makefile.in                      |   936 +
 plugins/gzip/README                           |    72 +
 plugins/gzip/configuration.cc                 |   259 +
 plugins/gzip/configuration.h                  |    84 +
 plugins/gzip/debug_macros.h                   |    59 +
 plugins/gzip/gzip.cc                          |   808 +
 plugins/gzip/misc.cc                          |   197 +
 plugins/gzip/misc.h                           |    81 +
 plugins/gzip/sample.gzip.config               |    57 +
 plugins/header_rewrite/Examples/Force-close   |    21 +
 plugins/header_rewrite/Examples/Regression    |    32 +
 plugins/header_rewrite/Examples/YCS-EC        |    36 +
 plugins/header_rewrite/Makefile.am            |    42 +
 plugins/header_rewrite/Makefile.in            |   976 +
 plugins/header_rewrite/README                 |    27 +
 plugins/header_rewrite/TODO                   |    29 +
 plugins/header_rewrite/condition.cc           |    81 +
 plugins/header_rewrite/condition.h            |   116 +
 plugins/header_rewrite/conditions.cc          |   488 +
 plugins/header_rewrite/conditions.h           |   352 +
 plugins/header_rewrite/expander.cc            |   117 +
 plugins/header_rewrite/expander.h             |    43 +
 plugins/header_rewrite/factory.cc             |   123 +
 plugins/header_rewrite/factory.h              |    34 +
 plugins/header_rewrite/header_rewrite.cc      |   446 +
 plugins/header_rewrite/lulu.cc                |    63 +
 plugins/header_rewrite/lulu.h                 |    70 +
 plugins/header_rewrite/matcher.cc             |    26 +
 plugins/header_rewrite/matcher.h              |   171 +
 plugins/header_rewrite/operator.cc            |    61 +
 plugins/header_rewrite/operator.h             |    97 +
 plugins/header_rewrite/operators.cc           |   545 +
 plugins/header_rewrite/operators.h            |   283 +
 plugins/header_rewrite/parser.cc              |   121 +
 plugins/header_rewrite/parser.h               |    66 +
 plugins/header_rewrite/regex_helper.cc        |    69 +
 plugins/header_rewrite/regex_helper.h         |    62 +
 plugins/header_rewrite/resources.cc           |   128 +
 plugins/header_rewrite/resources.h            |    89 +
 plugins/header_rewrite/ruleset.cc             |    92 +
 plugins/header_rewrite/ruleset.h              |    98 +
 plugins/header_rewrite/statement.cc           |   100 +
 plugins/header_rewrite/statement.h            |   107 +
 plugins/header_rewrite/value.h                |   101 +
 plugins/libloader/Makefile.am                 |    21 +
 plugins/libloader/Makefile.in                 |   934 +
 plugins/libloader/libloader.c                 |    85 +
 plugins/regex_remap/Makefile.am               |    21 +
 plugins/regex_remap/Makefile.in               |   935 +
 plugins/regex_remap/README                    |   130 +
 plugins/regex_remap/regex_remap.cc            |  1053 +
 plugins/stats_over_http/Makefile.am           |    21 +
 plugins/stats_over_http/Makefile.in           |   935 +
 plugins/stats_over_http/README                |    30 +
 plugins/stats_over_http/stats_over_http.c     |   273 +
 plugins/tcpinfo/Makefile.am                   |    22 +
 plugins/tcpinfo/Makefile.in                   |   934 +
 plugins/tcpinfo/tcpinfo.cc                    |   431 +
 proxy/AbstractBuffer.cc                       |   302 +
 proxy/AbstractBuffer.h                        |   184 +
 proxy/CacheControl.cc                         |   502 +
 proxy/CacheControl.h                          |   156 +
 proxy/ClassH.txt                              |    97 +
 proxy/CompletionUtil.h                        |    47 +
 proxy/ConfigParse.h                           |    41 +
 proxy/ControlBase.cc                          |   661 +
 proxy/ControlBase.h                           |   111 +
 proxy/ControlMatcher.cc                       |  1029 +
 proxy/ControlMatcher.h                        |   301 +
 proxy/CoreUtils.cc                            |  1055 +
 proxy/CoreUtils.h                             |   234 +
 proxy/DebugStreamLevels.txt                   |     4 +
 proxy/DynamicStats.h                          |   103 +
 proxy/EventName.cc                            |   115 +
 proxy/EventName.h                             |    38 +
 proxy/FetchSM.cc                              |   645 +
 proxy/FetchSM.h                               |   174 +
 proxy/HttpTransStats.h                        |    26 +
 proxy/ICP.cc                                  |  2457 ++
 proxy/ICP.h                                   |  1308 +
 proxy/ICPConfig.cc                            |  1511 +
 proxy/ICPProcessor.cc                         |    59 +
 proxy/ICPProcessor.h                          |    80 +
 proxy/ICPStats.cc                             |   125 +
 proxy/ICPevents.h                             |    43 +
 proxy/ICPlog.h                                |    72 +
 proxy/IPAllow.cc                              |   324 +
 proxy/IPAllow.h                               |   150 +
 proxy/InkAPI-ensure-funcs-present.pl          |    49 +
 proxy/InkAPI.cc                               |  8593 +++++
 proxy/InkAPIInternal.h                        |   339 +
 proxy/InkAPITest.cc                           |  7667 ++++
 proxy/InkAPITestTool.cc                       |  1013 +
 proxy/InkIOCoreAPI.cc                         |   755 +
 proxy/InkPool_r.h                             |    71 +
 proxy/Main.cc                                 |  1738 +
 proxy/Main.h                                  |    83 +
 proxy/Makefile.am                             |   363 +
 proxy/Makefile.in                             |  1842 +
 proxy/ParentSelection.cc                      |  1277 +
 proxy/ParentSelection.h                       |   239 +
 proxy/Plugin.cc                               |   296 +
 proxy/Plugin.h                                |    90 +
 proxy/PluginVC.cc                             |  1312 +
 proxy/PluginVC.h                              |   270 +
 proxy/Prefetch.cc                             |  2277 ++
 proxy/Prefetch.h                              |   440 +
 proxy/ProtoSM.h                               |   150 +
 proxy/ProtocolProbeSessionAccept.cc           |   140 +
 proxy/ProtocolProbeSessionAccept.h            |    72 +
 proxy/README-stats.otl                        |   615 +
 proxy/RegressionSM.cc                         |   249 +
 proxy/RegressionSM.h                          |    80 +
 proxy/ReverseProxy.cc                         |   207 +
 proxy/ReverseProxy.h                          |    72 +
 proxy/Show.h                                  |   147 +
 proxy/SocksProxy.cc                           |   579 +
 proxy/StatPages.cc                            |   279 +
 proxy/StatPages.h                             |   137 +
 proxy/StatSystem.cc                           |   786 +
 proxy/StatSystem.h                            |   636 +
 proxy/StufferUdpReceiver.cc                   |   335 +
 proxy/TestClock.cc                            |    46 +
 proxy/TestClusterHash.cc                      |   120 +
 proxy/TestDNS.cc                              |   258 +
 proxy/TestPreProc.cc                          |   188 +
 proxy/TestPreProc.h                           |    51 +
 proxy/TestProxy.cc                            |   408 +
 proxy/TestRegex.cc                            |    30 +
 proxy/TestSimpleProxy.cc                      |   160 +
 proxy/TimeTrace.h                             |    85 +
 proxy/Transform.cc                            |  1031 +
 proxy/Transform.h                             |   117 +
 proxy/TransformInternal.h                     |   166 +
 proxy/UDPAPIClientTest.cc                     |   116 +
 proxy/UDPAPIClientTest.h                      |    28 +
 proxy/UDPAPITest.cc                           |   131 +
 proxy/UDPAPITest.h                            |    28 +
 proxy/UnixCompletionUtil.h                    |   104 +
 proxy/Update.cc                               |  2658 ++
 proxy/Update.h                                |   527 +
 proxy/UserNameCacheTest.h                     |    25 +
 proxy/api/ts/InkAPIPrivateIOCore.h            |   238 +
 proxy/api/ts/Makefile.am                      |    27 +
 proxy/api/ts/Makefile.in                      |   816 +
 proxy/api/ts/TsException.h                    |    61 +
 proxy/api/ts/experimental.h                   |   727 +
 proxy/api/ts/remap.h                          |   137 +
 proxy/api/ts/ts.h                             |  2344 ++
 proxy/config/Makefile.am                      |    55 +
 proxy/config/Makefile.in                      |   989 +
 proxy/config/body_factory/Makefile.am         |    20 +
 proxy/config/body_factory/Makefile.in         |   868 +
 .../body_factory/default/.body_factory_info   |    16 +
 proxy/config/body_factory/default/Makefile.am |    49 +
 proxy/config/body_factory/default/Makefile.in |   772 +
 proxy/config/body_factory/default/README      |    17 +
 .../config/body_factory/default/access#denied |    14 +
 .../default/access#proxy_auth_required        |    14 +
 .../body_factory/default/access#redirect_url  |    15 +
 .../body_factory/default/access#ssl_forbidden |    15 +
 .../body_factory/default/cache#not_in_cache   |    16 +
 .../body_factory/default/cache#read_error     |    14 +
 .../default/congestion#retryAfter             |    15 +
 .../body_factory/default/connect#dns_failed   |    17 +
 .../default/connect#failed_connect            |    14 +
 .../body_factory/default/connect#hangup       |    15 +
 proxy/config/body_factory/default/default     |    14 +
 .../body_factory/default/interception#no_host |    17 +
 .../default/redirect#moved_permanently        |    14 +
 .../default/redirect#moved_temporarily        |    14 +
 .../default/request#cycle_detected            |    16 +
 .../default/request#invalid_content_length    |    15 +
 .../default/request#no_content_length         |    15 +
 .../body_factory/default/request#no_host      |    17 +
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 .../body_factory/default/request#syntax_error |    14 +
 .../default/response#bad_response             |    14 +
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 .../body_factory/default/timeout#activity     |    14 +
 .../body_factory/default/timeout#inactivity   |    14 +
 .../default/transcoding#unsupported           |    16 +
 .../default/urlrouting#no_mapping             |    15 +
 proxy/config/cache.config.default             |    53 +
 proxy/config/cluster.config.default           |    26 +
 proxy/config/congestion.config.default        |    56 +
 proxy/config/hosting.config.default           |    27 +
 proxy/config/icp.config.default               |    39 +
 proxy/config/ip_allow.config.default          |    23 +
 proxy/config/log_hosts.config.default         |    11 +
 proxy/config/logs_xml.config.default          |   391 +
 proxy/config/parent.config.default            |    52 +
 proxy/config/plugin.config.default            |     9 +
 proxy/config/prefetch.config.default          |    58 +
 proxy/config/public_key.der                   |   Bin 0 -> 436 bytes
 proxy/config/records.config.default.in        |   197 +
 proxy/config/remap.config.default             |   192 +
 proxy/config/socks.config.default             |    49 +
 proxy/config/splitdns.config.default          |    58 +
 proxy/config/ssl_multicert.config.default     |    55 +
 proxy/config/stats.config.dtd                 |    14 +
 proxy/config/stats.config.xml.default         |  1951 +
 proxy/config/storage.config.default.in        |    49 +
 proxy/config/throttle_error.html.example      |    32 +
 proxy/config/update.config.default            |    43 +
 proxy/config/vaddrs.config.default            |    22 +
 proxy/config/volume.config.default            |    30 +
 proxy/congest/Congestion.cc                   |   737 +
 proxy/congest/Congestion.h                    |   470 +
 proxy/congest/CongestionDB.cc                 |   638 +
 proxy/congest/CongestionDB.h                  |   115 +
 proxy/congest/CongestionStats.cc              |    52 +
 proxy/congest/CongestionStats.h               |    51 +
 proxy/congest/CongestionTest.cc               |   553 +
 proxy/congest/FeatureSpec.txt                 |   428 +
 proxy/congest/MT_hashtable.h                  |   405 +
 proxy/congest/Makefile.am                     |    45 +
 proxy/congest/Makefile.in                     |   881 +
 proxy/example_alarm_bin.sh                    |    71 +
 proxy/example_prep.sh                         |    32 +
 proxy/hdrs/HTTP.cc                            |  2129 ++
 proxy/hdrs/HTTP.h                             |  1525 +
 proxy/hdrs/HdrHeap.cc                         |  1293 +
 proxy/hdrs/HdrHeap.h                          |   494 +
 proxy/hdrs/HdrTSOnly.cc                       |   199 +
 proxy/hdrs/HdrTest.cc                         |  2278 ++
 proxy/hdrs/HdrTest.h                          |    83 +
 proxy/hdrs/HdrToken.cc                        |   767 +
 proxy/hdrs/HdrToken.h                         |   391 +
 proxy/hdrs/HdrUtils.cc                        |   181 +
 proxy/hdrs/HdrUtils.h                         |   183 +
 proxy/hdrs/HttpCompat.cc                      |   871 +
 proxy/hdrs/HttpCompat.h                       |    96 +
 proxy/hdrs/MIME.cc                            |  3796 ++
 proxy/hdrs/MIME.h                             |  1636 +
 proxy/hdrs/Makefile.am                        |    65 +
 proxy/hdrs/Makefile.in                        |   914 +
 proxy/hdrs/URL.cc                             |  1752 +
 proxy/hdrs/URL.h                              |   736 +
 proxy/hdrs/load_http_hdr.cc                   |   341 +
 proxy/hdrs/test_header.cc                     |  1044 +
 proxy/hdrs/test_urlhash.cc                    |    90 +
 proxy/http/HttpBodyFactory.cc                 |  1019 +
 proxy/http/HttpBodyFactory.h                  |   244 +
 proxy/http/HttpCacheSM.cc                     |   324 +
 proxy/http/HttpCacheSM.h                      |   176 +
 proxy/http/HttpClientSession.cc               |   636 +
 proxy/http/HttpClientSession.h                |   176 +
 proxy/http/HttpConfig.cc                      |  1905 +
 proxy/http/HttpConfig.h                       |   971 +
 proxy/http/HttpConnectionCount.cc             |    27 +
 proxy/http/HttpConnectionCount.h              |    96 +
 proxy/http/HttpDebugNames.cc                  |   486 +
 proxy/http/HttpDebugNames.h                   |    41 +
 proxy/http/HttpPages.cc                       |   480 +
 proxy/http/HttpPages.h                        |    91 +
 proxy/http/HttpProxyAPIEnums.h                |    47 +
 proxy/http/HttpProxyServerMain.cc             |   321 +
 proxy/http/HttpProxyServerMain.h              |    37 +
 proxy/http/HttpSM.cc                          |  7619 ++++
 proxy/http/HttpSM.h                           |   644 +
 proxy/http/HttpServerSession.cc               |   188 +
 proxy/http/HttpServerSession.h                |   184 +
 proxy/http/HttpSessionAccept.cc               |   105 +
 proxy/http/HttpSessionAccept.h                |   210 +
 proxy/http/HttpSessionManager.cc              |   335 +
 proxy/http/HttpSessionManager.h               |   105 +
 proxy/http/HttpTransact.cc                    |  8810 +++++
 proxy/http/HttpTransact.h                     |  1425 +
 proxy/http/HttpTransactCache.cc               |  1570 +
 proxy/http/HttpTransactCache.h                |   143 +
 proxy/http/HttpTransactHeaders.cc             |  1127 +
 proxy/http/HttpTransactHeaders.h              |   140 +
 proxy/http/HttpTunnel.cc                      |  1631 +
 proxy/http/HttpTunnel.h                       |   578 +
 proxy/http/HttpUpdateSM.cc                    |   232 +
 proxy/http/HttpUpdateSM.h                     |    84 +
 proxy/http/HttpUpdateTester.cc                |   126 +
 proxy/http/Makefile.am                        |    85 +
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 proxy/http/README.via                         |    85 +
 proxy/http/RegressionHttpTransact.cc          |   103 +
 proxy/http/TestHttpTransact.cc                |   112 +
 proxy/http/TestUrl.cc                         |   118 +
 proxy/http/remap/AclFiltering.cc              |   192 +
 proxy/http/remap/AclFiltering.h               |    99 +
 proxy/http/remap/Makefile.am                  |    51 +
 proxy/http/remap/Makefile.in                  |   898 +
 proxy/http/remap/RemapConfig.cc               |  1262 +
 proxy/http/remap/RemapConfig.h                |    79 +
 proxy/http/remap/RemapPluginInfo.cc           |    98 +
 proxy/http/remap/RemapPluginInfo.h            |    84 +
 proxy/http/remap/RemapPlugins.cc              |   199 +
 proxy/http/remap/RemapPlugins.h               |    75 +
 proxy/http/remap/RemapProcessor.cc            |   334 +
 proxy/http/remap/RemapProcessor.h             |    72 +
 proxy/http/remap/UrlMapping.cc                |   237 +
 proxy/http/remap/UrlMapping.h                 |   190 +
 proxy/http/remap/UrlMappingPathIndex.cc       |    92 +
 proxy/http/remap/UrlMappingPathIndex.h        |    98 +
 proxy/http/remap/UrlRewrite.cc                |   984 +
 proxy/http/remap/UrlRewrite.h                 |   193 +
 proxy/http/stats.memo                         |   247 +
 proxy/http/test_http_client.pl                |   347 +
 proxy/http/test_proxy.pl                      |   326 +
 proxy/http/test_socket_close.cc               |   645 +
 proxy/http/testheaders.cc                     |   132 +
 proxy/ink_icon.ico                            |   Bin 0 -> 3774 bytes
 proxy/issues.txt                              |   252 +
 proxy/logcat.cc                               |   346 +
 proxy/logging/Log.cc                          |  1498 +
 proxy/logging/Log.h                           |   486 +
 proxy/logging/LogAccess.cc                    |  1427 +
 proxy/logging/LogAccess.h                     |   368 +
 proxy/logging/LogAccessHttp.cc                |  1291 +
 proxy/logging/LogAccessHttp.h                 |   181 +
 proxy/logging/LogAccessICP.cc                 |   293 +
 proxy/logging/LogAccessICP.h                  |    95 +
 proxy/logging/LogAccessTest.cc                |   396 +
 proxy/logging/LogAccessTest.h                 |   106 +
 proxy/logging/LogBuffer.cc                    |   820 +
 proxy/logging/LogBuffer.h                     |   324 +
 proxy/logging/LogBufferSink.h                 |    53 +
 proxy/logging/LogCollationAccept.cc           |   111 +
 proxy/logging/LogCollationAccept.h            |    47 +
 proxy/logging/LogCollationBase.h              |    51 +
 proxy/logging/LogCollationClientSM.cc         |   738 +
 proxy/logging/LogCollationClientSM.h          |   125 +
 proxy/logging/LogCollationHostSM.cc           |   527 +
 proxy/logging/LogCollationHostSM.h            |   117 +
 proxy/logging/LogConfig.cc                    |  2279 ++
 proxy/logging/LogConfig.h                     |   275 +
 proxy/logging/LogField.cc                     |   636 +
 proxy/logging/LogField.h                      |   268 +
 proxy/logging/LogFieldAliasMap.cc             |    84 +
 proxy/logging/LogFieldAliasMap.h              |   225 +
 proxy/logging/LogFile.cc                      |   896 +
 proxy/logging/LogFile.h                       |   207 +
 proxy/logging/LogFilter.cc                    |   821 +
 proxy/logging/LogFilter.h                     |   434 +
 proxy/logging/LogFormat.cc                    |   853 +
 proxy/logging/LogFormat.h                     |   161 +
 proxy/logging/LogHost.cc                      |   479 +
 proxy/logging/LogHost.h                       |   133 +
 proxy/logging/LogLimits.h                     |    42 +
 proxy/logging/LogObject.cc                    |  1445 +
 proxy/logging/LogObject.h                     |   406 +
 proxy/logging/LogPredefined.cc                |   112 +
 proxy/logging/LogPredefined.h                 |    71 +
 proxy/logging/LogSock.cc                      |   743 +
 proxy/logging/LogSock.h                       |   139 +
 proxy/logging/LogStandalone.cc                |   256 +
 proxy/logging/LogUtils.cc                     |   572 +
 proxy/logging/LogUtils.h                      |    59 +
 proxy/logging/Makefile.am                     |    85 +
 proxy/logging/Makefile.in                     |   954 +
 proxy/logstats.cc                             |  2584 ++
 proxy/regression.pl                           |   166 +
 proxy/sac.cc                                  |   130 +
 proxy/shared/DiagsConfig.cc                   |   401 +
 proxy/shared/DiagsConfig.h                    |    49 +
 proxy/shared/Error.cc                         |   109 +
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 proxy/shared/InkXml.cc                        |   485 +
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 proxy/shared/UglyLogStubs.cc                  |   205 +
 proxy/shared/signals.cc                       |   414 +
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 proxy/spdy/Makefile.am                        |    48 +
 proxy/spdy/Makefile.in                        |   889 +
 proxy/spdy/SpdyCallbacks.cc                   |   543 +
 proxy/spdy/SpdyCallbacks.h                    |   269 +
 proxy/spdy/SpdyClientSession.cc               |   456 +
 proxy/spdy/SpdyClientSession.h                |   142 +
 proxy/spdy/SpdyCommon.cc                      |   184 +
 proxy/spdy/SpdyCommon.h                       |   109 +
 proxy/spdy/SpdyDefs.h                         |    39 +
 proxy/spdy/SpdySessionAccept.cc               |    71 +
 proxy/spdy/SpdySessionAccept.h                |    50 +
 proxy/test_xml_parser.cc                      |    55 +
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 rc/Makefile.am                                |    28 +
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 tools/Makefile.am                             |    50 +
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 tools/http_load/README                        |     7 +
 tools/http_load/http_load.c                   |  3015 ++
 tools/http_load/merge_stats.pl                |    73 +
 tools/http_load/port.h                        |   134 +
 tools/http_load/timers.c                      |   313 +
 tools/http_load/timers.h                      |   107 +
 tools/jtest/README                            |    78 +
 tools/jtest/README.zh.md                      |   409 +
 tools/jtest/jtest.cc                          |  4073 ++
 tools/lighttpd_mod_generator/Makefile         |    35 +
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 tools/lighttpd_mod_generator/mod_generator.c  |   357 +
 tools/reports/commits_since.sh                |    38 +
 tools/traffic_shell.pl                        |   900 +
 tools/tspush                                  |    73 +
 tools/tsxs.in                                 |   228 +
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 create mode 100644 proxy/config/vaddrs.config.default
 create mode 100644 proxy/config/volume.config.default
 create mode 100644 proxy/congest/Congestion.cc
 create mode 100644 proxy/congest/Congestion.h
 create mode 100644 proxy/congest/CongestionDB.cc
 create mode 100644 proxy/congest/CongestionDB.h
 create mode 100644 proxy/congest/CongestionStats.cc
 create mode 100644 proxy/congest/CongestionStats.h
 create mode 100644 proxy/congest/CongestionTest.cc
 create mode 100644 proxy/congest/FeatureSpec.txt
 create mode 100644 proxy/congest/MT_hashtable.h
 create mode 100644 proxy/congest/Makefile.am
 create mode 100644 proxy/congest/Makefile.in
 create mode 100644 proxy/example_alarm_bin.sh
 create mode 100644 proxy/example_prep.sh
 create mode 100644 proxy/hdrs/HTTP.cc
 create mode 100644 proxy/hdrs/HTTP.h
 create mode 100644 proxy/hdrs/HdrHeap.cc
 create mode 100644 proxy/hdrs/HdrHeap.h
 create mode 100644 proxy/hdrs/HdrTSOnly.cc
 create mode 100644 proxy/hdrs/HdrTest.cc
 create mode 100644 proxy/hdrs/HdrTest.h
 create mode 100644 proxy/hdrs/HdrToken.cc
 create mode 100644 proxy/hdrs/HdrToken.h
 create mode 100644 proxy/hdrs/HdrUtils.cc
 create mode 100644 proxy/hdrs/HdrUtils.h
 create mode 100644 proxy/hdrs/HttpCompat.cc
 create mode 100644 proxy/hdrs/HttpCompat.h
 create mode 100644 proxy/hdrs/MIME.cc
 create mode 100644 proxy/hdrs/MIME.h
 create mode 100644 proxy/hdrs/Makefile.am
 create mode 100644 proxy/hdrs/Makefile.in
 create mode 100644 proxy/hdrs/URL.cc
 create mode 100644 proxy/hdrs/URL.h
 create mode 100644 proxy/hdrs/load_http_hdr.cc
 create mode 100644 proxy/hdrs/test_header.cc
 create mode 100644 proxy/hdrs/test_urlhash.cc
 create mode 100644 proxy/http/HttpBodyFactory.cc
 create mode 100644 proxy/http/HttpBodyFactory.h
 create mode 100644 proxy/http/HttpCacheSM.cc
 create mode 100644 proxy/http/HttpCacheSM.h
 create mode 100644 proxy/http/HttpClientSession.cc
 create mode 100644 proxy/http/HttpClientSession.h
 create mode 100644 proxy/http/HttpConfig.cc
 create mode 100644 proxy/http/HttpConfig.h
 create mode 100644 proxy/http/HttpConnectionCount.cc
 create mode 100644 proxy/http/HttpConnectionCount.h
 create mode 100644 proxy/http/HttpDebugNames.cc
 create mode 100644 proxy/http/HttpDebugNames.h
 create mode 100644 proxy/http/HttpPages.cc
 create mode 100644 proxy/http/HttpPages.h
 create mode 100644 proxy/http/HttpProxyAPIEnums.h
 create mode 100644 proxy/http/HttpProxyServerMain.cc
 create mode 100644 proxy/http/HttpProxyServerMain.h
 create mode 100644 proxy/http/HttpSM.cc
 create mode 100644 proxy/http/HttpSM.h
 create mode 100644 proxy/http/HttpServerSession.cc
 create mode 100644 proxy/http/HttpServerSession.h
 create mode 100644 proxy/http/HttpSessionAccept.cc
 create mode 100644 proxy/http/HttpSessionAccept.h
 create mode 100644 proxy/http/HttpSessionManager.cc
 create mode 100644 proxy/http/HttpSessionManager.h
 create mode 100644 proxy/http/HttpTransact.cc
 create mode 100644 proxy/http/HttpTransact.h
 create mode 100644 proxy/http/HttpTransactCache.cc
 create mode 100644 proxy/http/HttpTransactCache.h
 create mode 100644 proxy/http/HttpTransactHeaders.cc
 create mode 100644 proxy/http/HttpTransactHeaders.h
 create mode 100644 proxy/http/HttpTunnel.cc
 create mode 100644 proxy/http/HttpTunnel.h
 create mode 100644 proxy/http/HttpUpdateSM.cc
 create mode 100644 proxy/http/HttpUpdateSM.h
 create mode 100644 proxy/http/HttpUpdateTester.cc
 create mode 100644 proxy/http/Makefile.am
 create mode 100644 proxy/http/Makefile.in
 create mode 100644 proxy/http/README.via
 create mode 100644 proxy/http/RegressionHttpTransact.cc
 create mode 100644 proxy/http/TestHttpTransact.cc
 create mode 100644 proxy/http/TestUrl.cc
 create mode 100644 proxy/http/remap/AclFiltering.cc
 create mode 100644 proxy/http/remap/AclFiltering.h
 create mode 100644 proxy/http/remap/Makefile.am
 create mode 100644 proxy/http/remap/Makefile.in
 create mode 100644 proxy/http/remap/RemapConfig.cc
 create mode 100644 proxy/http/remap/RemapConfig.h
 create mode 100644 proxy/http/remap/RemapPluginInfo.cc
 create mode 100644 proxy/http/remap/RemapPluginInfo.h
 create mode 100644 proxy/http/remap/RemapPlugins.cc
 create mode 100644 proxy/http/remap/RemapPlugins.h
 create mode 100644 proxy/http/remap/RemapProcessor.cc
 create mode 100644 proxy/http/remap/RemapProcessor.h
 create mode 100644 proxy/http/remap/UrlMapping.cc
 create mode 100644 proxy/http/remap/UrlMapping.h
 create mode 100644 proxy/http/remap/UrlMappingPathIndex.cc
 create mode 100644 proxy/http/remap/UrlMappingPathIndex.h
 create mode 100644 proxy/http/remap/UrlRewrite.cc
 create mode 100644 proxy/http/remap/UrlRewrite.h
 create mode 100644 proxy/http/stats.memo
 create mode 100644 proxy/http/test_http_client.pl
 create mode 100644 proxy/http/test_proxy.pl
 create mode 100644 proxy/http/test_socket_close.cc
 create mode 100644 proxy/http/testheaders.cc
 create mode 100644 proxy/ink_icon.ico
 create mode 100644 proxy/issues.txt
 create mode 100644 proxy/logcat.cc
 create mode 100644 proxy/logging/Log.cc
 create mode 100644 proxy/logging/Log.h
 create mode 100644 proxy/logging/LogAccess.cc
 create mode 100644 proxy/logging/LogAccess.h
 create mode 100644 proxy/logging/LogAccessHttp.cc
 create mode 100644 proxy/logging/LogAccessHttp.h
 create mode 100644 proxy/logging/LogAccessICP.cc
 create mode 100644 proxy/logging/LogAccessICP.h
 create mode 100644 proxy/logging/LogAccessTest.cc
 create mode 100644 proxy/logging/LogAccessTest.h
 create mode 100644 proxy/logging/LogBuffer.cc
 create mode 100644 proxy/logging/LogBuffer.h
 create mode 100644 proxy/logging/LogBufferSink.h
 create mode 100644 proxy/logging/LogCollationAccept.cc
 create mode 100644 proxy/logging/LogCollationAccept.h
 create mode 100644 proxy/logging/LogCollationBase.h
 create mode 100644 proxy/logging/LogCollationClientSM.cc
 create mode 100644 proxy/logging/LogCollationClientSM.h
 create mode 100644 proxy/logging/LogCollationHostSM.cc
 create mode 100644 proxy/logging/LogCollationHostSM.h
 create mode 100644 proxy/logging/LogConfig.cc
 create mode 100644 proxy/logging/LogConfig.h
 create mode 100644 proxy/logging/LogField.cc
 create mode 100644 proxy/logging/LogField.h
 create mode 100644 proxy/logging/LogFieldAliasMap.cc
 create mode 100644 proxy/logging/LogFieldAliasMap.h
 create mode 100644 proxy/logging/LogFile.cc
 create mode 100644 proxy/logging/LogFile.h
 create mode 100644 proxy/logging/LogFilter.cc
 create mode 100644 proxy/logging/LogFilter.h
 create mode 100644 proxy/logging/LogFormat.cc
 create mode 100644 proxy/logging/LogFormat.h
 create mode 100644 proxy/logging/LogHost.cc
 create mode 100644 proxy/logging/LogHost.h
 create mode 100644 proxy/logging/LogLimits.h
 create mode 100644 proxy/logging/LogObject.cc
 create mode 100644 proxy/logging/LogObject.h
 create mode 100644 proxy/logging/LogPredefined.cc
 create mode 100644 proxy/logging/LogPredefined.h
 create mode 100644 proxy/logging/LogSock.cc
 create mode 100644 proxy/logging/LogSock.h
 create mode 100644 proxy/logging/LogStandalone.cc
 create mode 100644 proxy/logging/LogUtils.cc
 create mode 100644 proxy/logging/LogUtils.h
 create mode 100644 proxy/logging/Makefile.am
 create mode 100644 proxy/logging/Makefile.in
 create mode 100644 proxy/logstats.cc
 create mode 100644 proxy/regression.pl
 create mode 100644 proxy/sac.cc
 create mode 100644 proxy/shared/DiagsConfig.cc
 create mode 100644 proxy/shared/DiagsConfig.h
 create mode 100644 proxy/shared/Error.cc
 create mode 100644 proxy/shared/Error.h
 create mode 100644 proxy/shared/InkXml.cc
 create mode 100644 proxy/shared/InkXml.h
 create mode 100644 proxy/shared/Makefile.am
 create mode 100644 proxy/shared/Makefile.in
 create mode 100644 proxy/shared/UglyLogStubs.cc
 create mode 100644 proxy/shared/signals.cc
 create mode 100644 proxy/shared/signals.h
 create mode 100644 proxy/spdy/Makefile.am
 create mode 100644 proxy/spdy/Makefile.in
 create mode 100644 proxy/spdy/SpdyCallbacks.cc
 create mode 100644 proxy/spdy/SpdyCallbacks.h
 create mode 100644 proxy/spdy/SpdyClientSession.cc
 create mode 100644 proxy/spdy/SpdyClientSession.h
 create mode 100644 proxy/spdy/SpdyCommon.cc
 create mode 100644 proxy/spdy/SpdyCommon.h
 create mode 100644 proxy/spdy/SpdyDefs.h
 create mode 100644 proxy/spdy/SpdySessionAccept.cc
 create mode 100644 proxy/spdy/SpdySessionAccept.h
 create mode 100644 proxy/test_xml_parser.cc
 create mode 100644 proxy/tests/logstats.blog
 create mode 100644 proxy/tests/logstats.json
 create mode 100644 proxy/tests/logstats.summary
 create mode 100755 proxy/tests/test_logstats_json
 create mode 100755 proxy/tests/test_logstats_summary
 create mode 100644 rc/Makefile.am
 create mode 100644 rc/Makefile.in
 create mode 100644 rc/solaris.txt
 create mode 100644 rc/start_traffic_shell
 create mode 100644 rc/trafficserver.conf.in
 create mode 100644 rc/trafficserver.in
 create mode 100644 rc/trafficserver.service.in
 create mode 100644 rc/trafficserver.xml.in
 create mode 100644 tools/Makefile.am
 create mode 100644 tools/Makefile.in
 create mode 100755 tools/apichecker.pl
 create mode 100644 tools/http_load/README
 create mode 100644 tools/http_load/http_load.c
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 create mode 100644 tools/http_load/port.h
 create mode 100644 tools/http_load/timers.c
 create mode 100644 tools/http_load/timers.h
 create mode 100644 tools/jtest/README
 create mode 100644 tools/jtest/README.zh.md
 create mode 100644 tools/jtest/jtest.cc
 create mode 100644 tools/lighttpd_mod_generator/Makefile
 create mode 100644 tools/lighttpd_mod_generator/README
 create mode 100755 tools/lighttpd_mod_generator/ats_lighttpd_benchmark
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_1.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_10.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_11.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_12.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_13.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_14.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_15.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_16.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_17.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_18.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_19.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_2.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_20.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_21.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_22.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_23.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_24.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_3.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_4.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_5.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_6.conf
 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_7.conf
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 create mode 100644 tools/lighttpd_mod_generator/conf/lighttpd_9.conf
 create mode 100644 tools/lighttpd_mod_generator/mod_generator.c
 create mode 100755 tools/reports/commits_since.sh
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 create mode 100755 tools/tspush
 create mode 100755 tools/tsxs.in

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 00000000..df89c8d9
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,25 @@
+# BasedOnStyle:  LLVM
+AccessModifierOffset: -2
+AlignEscapedNewlinesLeft: true
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakTemplateDeclarations: false
+BinPackParameters: true
+ColumnLimit:     120
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+DerivePointerBinding: false
+IndentCaseLabels: false
+MaxEmptyLinesToKeep: 2
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakComment: 45
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 0
+PointerBindsToType: true
+SpacesBeforeTrailingComments: 4
+SpacesInBracedLists: true
+Standard:        C++03
+IndentWidth:     2
+UseTab:          false
+BreakBeforeBraces: Linux
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..2111b7d6
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/luajit"]
+	path = lib/luajit
+	url = http://luajit.org/git/luajit-2.0.git
diff --git a/.indent.pro b/.indent.pro
new file mode 100644
index 00000000..b0c23ca8
--- /dev/null
+++ b/.indent.pro
@@ -0,0 +1,29 @@
+-nut
+-nbad
+-bap
+-nbbo
+-nbc
+-br
+-bls
+-ce
+-ci2
+-cli0
+-cs
+-d0
+-di2
+-nfc1
+-nfca
+-hnl
+-i2
+-ip0
+-l120
+-lp
+-npcs
+-nprs
+-psl
+-saf
+-sai
+-saw
+-nsc
+-nsob
+-nss
diff --git a/.vimrc b/.vimrc
new file mode 100644
index 00000000..b810920d
--- /dev/null
+++ b/.vimrc
@@ -0,0 +1,7 @@
+" Basic whitespace rules. If you use vim, set exrc and set secure
+" to have it automatically source this file.
+set tabstop=2
+set softtabstop=2
+set shiftwidth=2
+set expandtab
+set textwidth=120
diff --git a/CHANGES b/CHANGES
new file mode 100644
index 00000000..473c9f14
--- /dev/null
+++ b/CHANGES
@@ -0,0 +1,3744 @@
+                                                         -*- coding: utf-8 -*-
+Changes with Apache Traffic Server 5.0.1
+  *) [TS-2055] limit access to synthetic healthcheck
+
+
+Changes with Apache Traffic Server 5.0.0
+
+  *) [TS-2885] Change LuaJIT to build statically, and add --disable-luajit. This
+   is an option that will eventually be removed as we make LuaJIT mandatory.
+
+  *) [TS-2886] Fix regression where body factory is not used.
+
+  *) [TS-2881] Redirection handling broken
+
+  *) [TS-2875] Change hwloc library env variables from hwloc_ to HWLOC_.
+
+  *) [TS-2874] Make some of the SPDY metrics persistent, and also fix how we
+   measure transaction time / total streams.
+
+  *) [TS-2872] Can't set "Send Window" for SPDY/3.1 > 64k. Code mostly
+   provided by our SPDY brainiac, Geffon.
+
+  *) [TS-2873] Cleanup SPDY metrics and configs, also make it use the common
+   pattern for stats increments/decrements (even though it's ugly, sorry amc).
+
+  *) [TS-2870] Update SPDY defaults to better match our other defaults.
+
+  *) [TS-2868] Error setting HSTS max age with traffic_line
+
+  *) [TS-2776] Core dump inside openssl library
+
+  *) [TS-2845] Commit e6b9cb533 causes problems with stats_over_http
+
+  *) [TS-1981] Url remap and IPAllow method filtering is broken with non-wks method
+      and add support for arbitrary methods
+
+  *) [TS-2865] Fix warnings in collapsed connection plugin
+
+  *) [TS-2580] SSL Connection reset by peer errors in 4.2.0-rc0
+
+  *) [TS-2783] Update documentation defaults, and fix RecordsConfig.cc.
+
+  *) [TS-2792] Large request header causes unexpected remap.
+   Author: Masakazu Kitajo <m4sk17@gmail.com>
+
+  *) [TS-2834] header_rewrite: Add Internal transaction and client-IP
+   conditions.
+
+  *) [TS-2855] Add the TSHttpIsInternalSession API.
+
+  *) [TS-2859] Remove DBG macros to not generate warnings from GCC 4.9.
+
+  *) [TS-2858] Build failures on OmniOS. Also add some LuaJIT flags as per
+   Theo's and Daniel's recommendations.
+
+  *) [TS-2857] Cleanup SPDY and SSL stat names
+
+  *) [TS-2856] Remove proxy.config.spdy.verbose_in and use diags instead
+
+  *) [TS-2391] Traffic Server tries to reverse resolve 127.0.0.1
+
+  *) [TS-2837] Dangling pointer in URLImpl which may cause core dump
+
+  *) [TS-2842] Can't set SPDY inactivity timeout with traffic_line
+
+  *) [TS-2618] IOBufferBlock::realloc()'s bounds check is wrong.
+
+  *) [TS-2850] Fix logging of response header length.
+
+  *) [TS-2839] tsxs does not work on OSX (Darwin).
+   Author: Masakazu Kitajo <m4sk17@gmail.com>
+
+  *) [TS-2820] Add check to Transformations in C++ api to prevent closing
+      connections twice.
+
+  *) [TS-2804] Add regex_revalidate plugin to explerimental plugins directory.
+
+  *) [TS-2528] Use <stdbool.h> in the public mgmtapi.h interface. This follows
+   the C99 standard, and we should move other public APIs to it.
+
+  *) [TS-2428] Move P_Freer.h continuations to run on ET_TASK (if available).
+
+  *) [TS-2344] 404 error was logged while url redirect request was processed
+   correctly.
+
+  *) [TS-2753] Add more SPDY and HTTPS statistics.
+
+  *) [TS-2677] Don't apply path / scheme URL changes in remap when method is
+   CONNECT.
+
+  *) [TS-2308] includedir in config.layout is not used.
+
+  *) [TS-2527] mgmtapi.h should be C style. This is slightly ugly in the core
+   now, but that public struct/union has to be named to be C99 compliant.
+
+  *) [TS-2838] Add logging fields for plugins to TS connect API. Use for SPDY.
+
+  *) [TS-2833] Remove REC_BUILD_STAND_ALONE, REC_BUILD_MGMT and
+   REC_BUILD_STUB. Dead code.
+
+  *) [TS-2547] Remove Resource.c/h, and NEW as well.
+
+  *) [TS-1588] slow log should include client addr
+
+  *) [TS-2728] The lib/perl Makefile.am does not properly detect in-source
+   builds, generating errors.
+
+  *) [TS-2723] add new features to ts_lua plugin.
+   Author: Quehan <quehan@taobao.com>
+
+  *) [TS-2816] Bump the minor cache version for ATS 5.0 release
+
+  *) [TS-2764] Remove when_to_add_no_cache_to_msie_requests configuration.
+
+  *) [TS-2737] Rename rfc5861 plugin to stale_while_revalidate.
+
+  *) [TS-2400] Our default SSL cipher-suite advocates speed over security
+
+  *) [TS-2818] TSHttpTxnServerAddrSet() doesn't update the server port
+
+  *) [TS-2793] Remove UnixNetVConnection::selected_next_protocol.
+
+  *) [TS-2831] Add SPDY stream count statistic.
+
+  *) [TS-1665] Remove the old traffic_shell (R.I.P.).
+
+  *) [TS-2830] Make SPDY configurable.
+
+  *) [TS-2684] Add a text-log format to background_fetch plugin.
+
+  *) [TS-2577] Tracing on e.g. -T http_hdrs does not show Proxy Request
+   headers accurately. Author: Masakazu Kitajo <m4sk17@gmail.com>
+
+  *) [TS-1486] Drop support for Sun Studio compilers.
+
+  *) [TS-2765] Memory Leak in SSLConfig initialization
+
+  *) [TS-1125] POST's with Expect: 100-continue are slowed by delayed 100
+  response
+
+  *) [TS-2826] SPDY implementation does not support OPTIONS and TRACE methods
+
+  *) [TS-2274] Minimize the default records.config, and also fix a number of
+   inconsistencies and missing configs in RecordsConfig.cc. This is as per
+   discussions on IRC etc. I have verified that traffic_line -m reports the
+   same internal values for all configs before and after this change. In
+   addition, the following defaults are changing:
+
+      - proxy.config.url_remap.pristine_host_hdr -> 0
+      - proxy.config.http.normalize_ae_gzip -> 1
+      - proxy.config.http.cache.ignore_client_cc_max_age -> 1
+      - proxy.config.http.background_fill_active_timeout -> 0
+      - proxy.config.http.background_fill_completed_threshold -> 0.0
+      - proxy.config.cache.enable_read_while_writer -> 1
+      - proxy.config.net.sock_send_buffer_size_in -> 0
+      - proxy.config.cache.permit.pinning -> 1
+      - proxy.config.diags.show_location -> 1
+      - proxy.config.dns.round_robin_nameservers -> 1
+      - proxy.config.http.connect_ports -> 443
+      - proxy.config.log.custom_logs_enabled -> 1
+      - proxy.config.spdy.client.max_concurrent_streams -> 100
+      - proxy.config.env_prep -> NULL
+
+  *) [TS-2824] Revert TS-2592.
+
+  *) [TS-2632] Do not lock the object in cache (by default) on Range
+   requests. This adds proxy.config.http.cache.range.write.
+
+  *) [TS-2822] Crash in LogBufferIterator::next
+
+  *) [TS-2705] Make the background fill check more robust.
+
+  *) [TS-1411] Seg fault when using %<cquuc>
+
+  *) [TS-2739] ATS doesn't send back Transfer-Encoding when client keep-alive
+     is turned off
+
+  *) [TS-2253] PluginVC::process_close Segmentation fault
+
+  *) [TS-2823] Change the Mgmt API names TSEvent and TSError to avoid name
+     collisions with the plugin API.
+
+  *) [TS-2029] Eliminate CacheHttpHdr argument from Cache::generate_key().
+
+  *) [TS-2821] Added configuration for max concurrent streams for SPDY.
+
+  *) [TS-2558] Remove check for inbound transparency vs. SSL.
+
+  *) [TS-2810] Add the TSVConnFdCreate API.
+
+  *) [TS-2342] Problem with cache.cache_responses_to_cookies value 0.
+   Author: Paul Marquess <Paul.Marquess@owmobility.com>
+
+  *) [TS-2751] Remove the ProtocolNetAccept layer.
+
+  *) [TS-2815] SSL orgin server connection hangs if ssl handshake is slow
+
+  *) [TS-2788] Make proxy.config.alarm.bin reloadable.
+
+  *) [TS-2811] Error logged in regex_remap when lowercase_substitutions option
+   is used.
+
+  *) [TS-2791] SPDY POST transactions failing with ERR_CLIENT_ABORT.
+
+  *) [TS-2805] Client connections are connecting with SPDY 3 instead of 3.1.
+
+  *) [TS-2619] Changed TSRecordDump declaration from TSRecordType to int to
+   accommodate bit-masks. Also changed TSRecordType enums to hexidecimal, as
+   this is easier to read for bit arguments.
+
+  *) [TS-2797] Build all manual pages in the doc/reference/api directory.
+
+  *) [TS-2733] Do not build the old SPDY plugin.
+
+  *) [TS-2716] Fix indentation for ts_lua plugin.
+
+  *) [TS-2789] Typo in HttpSessionManger would cause ATS reuse wrong session
+   to origin server.
+
+  *) [TS-2636] Enhance ATS custom logging to support WIPE_FIELD_VALUE filter
+   action.
+
+  *) [TS-2786, TS-2784] Make Lua and header_rewrite plugins compile on FBSD.
+
+  *) [TS-1375] Setting default inactivity timeout, if one is not set, to 1
+   day.
+
+  *) [TS-2780] Core dump in SpdyRequest::clear() in production testing of
+   SPDY.
+
+  *) [TS-2744] Remove TSNetAcceptNamedProtocol assertion for unknown
+   protocols.
+
+  *) [TS-898] Stop the esi plugin referencing invalidated strings.
+
+  *) [TS-2778] Websockets remap doesn't properly handle the implicit port for
+   wss.
+
+  *) [TS-2774] TS::AdminClient.pm's get_stat API broken in 5.0.
+
+  *) [TS-2766] HdrHeap::coalesce_str_heaps doesn't properly calculate new heap
+   size.
+
+  *) [TS-2767] ATS Memory Leak related to SPDY.
+
+  *) [TS-2757] Fix logging crashes on reconfiguration.
+
+  *) [TS-2770] Allow proxy.config.log.rolling_interval_sec to be as low as 60sec.
+  
+  *) [TS-2772] Clean up mgmt/preparse code.
+
+  *) [TS-2763] Remove the unused proxy.config.log.xuid_logging_enabled config
+   setting.
+
+  *) [TS-2762] Core dump when benchmarking SPDY.
+
+  *) [TS-2755] Document TSTextLogObjectRollingEnabledSet.
+
+  *) [TS-2746] Rename session accept layer with a standard convention.
+
+  *) [TS-2754] Emit a tcpinfo log on TS_EVENT_HTTP_TXN_CLOSE.
+
+  *) [TS-2760] Add TSFetchClientProtoStackSet/Get() API in experimental.h.
+
+  *) [TS-2743] Ignore invalid HTTP headers in SpdyNV carefully.
+
+  *) [TS-2742] TSFetchCreate should accept both IPv4 and IPv6.
+
+  *) [TS-2736] Add config option to set the max open files limit for the
+    traffic_server process to some percentage of the fs.file-max proc value on
+    Linux. The default is 90%.
+
+  *) [TS-2741] Add a server intercept example plugins and documentation.
+
+  *) [TS-2616] Sanitize duplicate Transfer-Encoding: chunked headers.
+   Author: Dimitry Andric <dimitry@andric.com>
+
+  *) [TS-645] Remove broken hard restart from traffic_shell.
+
+  *) [TS-2562] Improve init script support for Debian/Ubuntu.
+   Author: Tomasz Kuzemko <tomasz@kuzemko.net>
+
+  *) [TS-2735] Align all memory during freelist allocations.
+
+  *) [TS-2120] remove stale_while_revalidate plugin.
+
+  *) [TS-2732] Add url_sign (Signed URL's) plugin.
+   Author: Jan van Doorn <jvd@knutsel.com>
+
+  *) [TS-2650] Redirect handling enhancements in ATS.
+
+  *) [TS-2548] Add client IP to SSLError() calls in SSLNetVConnection
+
+  *) [TS-2710] ATS serves the wrong cert because it matches wildcard certs
+   incorrectly.
+
+  *) [TS-2704] Core dump in state_raw_http_server_open getting EVENT_INTERVAL
+   event.
+
+  *) [TS-2720] Fix bug with request transformations in C++ api 
+
+  *) [TS-2714] Promote the tcp_info plugin to stable as 'tcpinfo'.
+
+  *) [TS-2708] Refactor and modernize the tcp_info plugin.
+
+  *) [TS-2555] Adding global plugin support to ts_lua plugin.
+
+  *) [TS-2717] header-rewrite set-redirect not working.
+   Author: Igor Brezac
+
+  *) [TS-2715] Fix some ESI compile warnings, change the constants to
+   be part of an include.
+
+  *) [TS-898] Remove pointless NULL check on address of array.
+
+  *) [TS-898] Avoid passing -1 to close (2) in traffic_cop.
+
+  *) [TS-898] Fix minor regex_remap parsing bug.
+
+  *) [TS-2711] Include Lua JIT as a Submodule.
+
+  *) [TS-898] Ensure the cache span probe always closes file descriptors.
+
+  *) [TS-2706] Replace the tcp_info plugin config file with options.
+
+  *) [TS-2691] Fix how we count redirect retries in the core and APIs.
+
+  *) [TS-2693] Deprecate the old TSRedirectUrlSet()/TSRedirectUrlGet().
+
+  *) [TS-2692] Add an API to Get the current redirection retry count,
+   TSHttpTxnRedirectRetries().
+
+  *) [TS-2707] Migrate TSRedirectUrlSet/Get to TSHttpTxnRedirectUrlSet/Get.
+
+  *) [TS-2690] Fixes and improvements for the escalate plugin.
+
+  *) [TS-2699] Add TSClientProtoStackCreate API.
+
+  *) [TS-2678] Some sites (e.g. craigslist) fails to load due to
+   incorrect truncated response detection.
+
+  *) [TS-2603] Do not update HostDB for server intercept requests.
+   Author: Quehan <quehan@taobao.com>
+
+  *) [TS-2622] Optimize the ink_cluster_time() function.
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2701] Silence traffic_cop logging on chown of missing lock files.
+
+  *) [TS-2656 Determine server connection scheme immediately before
+   connecting. Author: Ron Barber <rwbarber2@gmail.com>
+
+  *) [TS-2578] Close the client connection when you close TransformTerminus.
+   Author: Jack Bates <jack@nottheoilrig.com>
+
+  *) [TS-2657] Eliminate TSHttpTxnSetHttpRetBody() and improve upon
+   TSHttpTxnErrorBodySet(). This also reduces the size of the HttpSM by 25%.
+
+  *) [TS-2589] Don't hold up the response until the server starts sending
+   content. Author: Jack Bates <jack@nottheoilrig.com>
+
+  *) [TS-2687] Support for MIPS paltform.
+   Author: Dejan Latinovic <Dejan.Latinovic@rt-rk.com> 
+
+  *) [TS-2688] atscppapi: new example plugin Boom.
+   Author: Omer Shapira <oshapira@linkedin.com>
+
+  *) [TS-2686] Change background_fetch to defer cacheability check until
+   SEND_RESPONSE_HDR hook. This allows for other READ_REQUEST_HDR hooks to
+   modify the response header before we evaluate.
+
+  *) [TS-2679] background_fetch plugin can use uninitialized cont pointer.
+
+  *) [TS-2675] metalink: Fix crash and plug memory leaks.
+   Author: Jack Bates <jack@nottheoilrig.com>
+
+  *) [TS-2674] Remove debug printf() from traffic_top.
+
+  *) [TS-2652] atscppapi: Providing a cancel() in asyncproviders .
+  
+  *) [TS-2667] atscppapi: Allow intercept plugins to access request headers
+   object.
+
+  *) [TS-2672] TSMimeHdrFieldDestroy should not assert on removed fields.
+
+  *) [TS-2554] New plugin: background_fetch, which under certain conditions
+   will kick off a background fetch when it detects Range request and
+   responses. This allows for the cache to start populating objects that would
+   otherwise not be cacheable. This is ideally used together with the
+   read-while-writer feature as well.
+
+  *) [TS-2671] Restore missing .useflt remap directive.
+
+  *) [TS-2654] Crash in Range requests with read-while-writer.
+
+  *) [TS-2665] Clean up ink_stack_trace_dump code
+   Thanks to Alexey Ivanov <aivanov@linkedin.com> for reporting this issue.
+
+  *) [TS-2663] Wrong condition on log code for server connection errors.
+   Author: David Binderman <dcb314@hotmail.com>
+
+  *) [TS-2664] atscppapi: Removing initializable values.
+
+  *) [TS-2660] Rename StateMachineAction_t values for legibility.
+
+  *) [TS-2662] Re-enable KEEP_ALIVE_POST_OUT by default.
+
+  *) [TS-2661] Remove unused HttpSM::decided_cached_url.
+
+  *) [TS-2658] Additional debug logging for SSL certificates.
+
+  *) [TS-2431] Migrate Taobao SPDY plugin to ATS core.
+
+  *) [TS-2651] atscppapi: race conditions in destruction of async providers
+
+  *) [TS-2646] regex_remap: Add a new option, @caseless.
+
+  *) [TS-2647] atscppapi: Bug fixes in headers and atscppapi.
+
+  *) [TS-2598] Expose HttpDebugNames to public plugin APIs.
+
+  *) [TS-2639] Release HttpClientSession objects back to the proxy allocator.
+
+  *) [TS-2637] Add traffic_line records match option.
+
+  *) [TS-2630] Add lib/ts/apidefs.h to place common types.
+
+  *) [TS-2610] Add "client_protocol_stack"(%<cps>) field into LogFormat.
+
+  *) [TS-2612] Indroduce TSHttpConnectWithProtoStack() API.
+
+  *) [TS-1062] Extends and optimizes FetchSM.
+
+  *) [TS-2631] Header_rewrite should support changing destination in non-remap
+   case.
+
+  *) [TS-2623] Remove the limit on the number of cachurl regular expressions.
+
+  *) [TS-2628] traffic_line should tell you when a reload is needed.
+
+  *) [TS-2627] Reduce management socket code duplication.
+
+  *) [TS-2625] trafficserver.in doesn't use TS_BASE.
+
+  *) [TS-2624] Make thread affinity more robust.
+
+  *) [TS-2620] Make the stats_over_http plugin publish node and plugin stats.
+
+  *) [TS-2614] Response to invalid Content-Length for POST should be a 400
+   error. Author: Ron Barber <rbarber@yahoo-inc.com>
+
+  *) [TS-2615] Better logging and error handling in SSL client session startup.
+
+  *) [TS-2613] Can't turn on attach server session to client from
+   records.config.
+
+  *) [TS-2611] Add a new S3 authentication plugin, s3_auth. This only supports
+   the v2 features of the S3 API.
+
+  *) [TS-2522] Better hook management for header_rewrite plugin, and some
+   cleanup.
+
+  *) [TS-2169] Add SSL statistics
+   Author: Ron Barber <rbarber@yahoo-inc.com>
+
+  *) [TS-2607] Fix TS_USE_HWLOC #define in build process
+
+  *) [TS-2595] DNS lookup failed with multiple search domains. 
+   Author: Thach Tran <tranngocthachs@gmail.com>
+
+  *) [TS-2019] Fix the "vector inconsistency" errors.
+
+  *) [TS-2585] Add overridable configs support to regex_remap plugin.
+   Author: Ethan Lai <yzlai@yahoo.com>
+
+  *) [TS-2569] Set the default SSL options correctly.
+   Author: Ron Barber <rbarber@yahoo-inc.com>
+
+  *) [TS-2599] Remove dead code in RedCore related to Record Types
+
+  *) [TS-2593] HTTPS to origin fails on CentOS6.x. This is a regression of
+   sort from TS-2355.
+
+  *) [TS-2576] Add Oct/Hex escape representation into LogFormat
+
+  *) [TS-2494] fix the crash that return the stale cached document
+   when os is down, even if it`s status is not 200 (ok).
+
+  *) [TS-2590] Translate documentation into Japanese.
+   Authors: Masaori Koshiba <masaori335@gmail.com>
+            Masakazu Kitajo <m4sk17@gmail.com>
+            syucream <syucream1031@gmail.com>
+
+  *) [TS-2586] Improvements to the internal implementation of overridable
+   configuration lookups (_conf_to_memberp() ).
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2210] Add a plugin API to manipulate the session's SSL context.
+   Author: Kang Li <kangli@yahoo-inc.com>
+
+  *) [TS-2542] Turn on caching zero length responses by default.
+
+  *) [TS-2405] Change the default for proxy.config.net.sock_option_flag_out to
+   1, which enables TCP_NODELAY.
+
+  *) [TS-2531] The default remap rule doesn't match a forward proxy request
+
+  *) [TS-612] Add support for SSL keys with passphrases.
+   Author: Ron Barber <rbarber@yahoo-inc.com>
+
+  *) [TS-2319] Change default behavior for the various ignore-mismatch
+   configurations.
+
+  *) [TS-2563] Always set the SSL default verify paths.
+   Author: Wei Sun <sunwei@yahoo-inc.com>
+
+  *) [TS-2437] Add a lifecycle hook to expose loaded SSL certificates to
+   plugins. Author: Wei Sun <sunwei@yahoo-inc.com>
+
+  *) [TS-2582] Make traffic_cop debugging eadier by logging to stdout.
+
+  *) [TS-2579] Remove ipv4 limit for FetchSM and TSFetchUrl/TSFetchPages.
+
+  *) [TS-1893] Add more options to server session control.
+
+  *) [TS-2239] Initial ALPN TLS extension support.
+
+  *) [TS-2568] Better template messages.
+
+  *) [TS-2567] Add --install-test-tools configure option.
+
+  *) [TS-1622] Add a new API, TSHttpTxnIsCacheable(), which allows a plugin
+   to determine whether a request (and/or response) would be cacheable.
+
+  *) [TS-2560] regex_remap lowercase substitutions is not being initialized in
+   the construtor
+
+  *) [TS-2559] Disconnect clients on unrecoverable origin errors.
+
+  *) [TS-2556] Fix ink_hrtime_diff_msec.
+
+  *) [TS-2553] Fix a segfault in the Metalink plugin reported by Faysal Banna
+   and preserve the Content-Length header
+   Author: Jack Bates <jack@nottheoilrig.com>
+
+  *) [TS-2195] Remove the (deprecated) TSHttpTxnCacheLookupSkip API.
+
+  *) [TS-2229] Deprecate the header_filter plugin, use header_rewrite instead.
+
+  *) [TS-2290] Remove X-ID special log tag, and cleanup HdrToken confusion.
+
+  *) [TS-2088] Change TSRecordType enum values to powers of two
+
+
+Changes with Apache Traffic Server 4.2.0
+
+  *) [TS-2552] configure fails to detect missing the #define for
+   SSL_CTX_set_tlsext_ticket_key_cb().
+
+  *) [TS-2549] printf() compiler warnings  on OSX (clang) with the CPP APIs.
+
+  *) [TS-2532] Fix make distclean for C++ API examples.
+
+  *) [TS-2306] Client connection hang while downloading big file from origin
+   server over SSL connection
+
+  *) [TS-2353] Add ability to load ssl certs that are owned by root and only
+   read only by the user
+
+  *) [TS-2551] Eliminate the tr1 dependency from CPP APIs.
+
+  *) [TS-2541] Add WebSocket support
+
+  *) [TS-2550] Add inline configuration overrised to the conf_remap plugin.
+
+  *) [TS-2546] Move xptr and _xstrdup to ink_memory.{h,cc}.
+
+  *) [TS-2180] Small memory leak in RecCore.cc, from previous refactoring.
+
+  *) [TS-2534] Make sure RecRecord structs are always properly initialized.
+
+  *) [TS-2483] Add a new metric, proxy.node.restarts.proxy.cache_ready_time,
+   tracking absolute time when the cache started (finished
+   initialization). Until cache is available, or no cache configured, this
+   metric stays at a value of "0".
+
+  *) [TS-2517 First implementation of traffic_shell.pl, and reorg the modules
+   a bit for more consistency. Also fixes a timeout issue in AdminClient.pm.
+
+  *) [TS-1467] Disable client initiated renegotiation (SSL) DDoS by default
+
+  *) [TS-2538] Cleanup of ProcessMutex (unused) and InkMutex (dupe of
+   ink_mutex). We now use ink_mutex consistently.
+
+  *) [TS-2544] conf_remap plugin: allow for multiple configuration files.
+
+  *) [TS-2530] Check for loopback interfaces when computing the local address.
+   Author: Ron Barber rbarber@yahoo-inc.com
+
+  *) [TS-2031] Prevent duplicate SSL SNI name registration.
+   Author: Feifei Cai <ffcai@yahoo-inc.com>
+
+  *) [TS-2501] Refactor and improve performance for the case without
+   expansions. Review: Alexey Ivanov <aivanov@linkedin.com>.
+
+  *) [TS-2533 ] Add three commands previously provided by traffic_shell.
+
+  *) [TS-2304] Make the healthcheck plugin watch for file permission changes.
+
+  *) [TS-2519] Make build version metrics non-persistent.
+
+  *) [TS-1606] Log buffers are not flushed periodically when TS is launched 
+   with NO_REMOTE_MANAGEMENT flag
+
+  *) [TS-2481] Incorrect origin server port used sometimes (with keep-alive).
+   Author: Dimitry Andric <dimitry@andric.com>
+
+  *) [TS-2526] Remove the g_stats_snap_fpath global variable.
+
+  *) [TS-2525] Remove restrictions on outbound transparency with SSL.
+
+  *) [TS-2425] Update to TS-2261 for loading plugins as root
+
+  *) [TS-2505] Add traffic_line --offline option.
+
+  *) [TS-2305] Fall back to ftruncate if posix_fallocate fails.
+
+  *) [TS-2504] Support OpenSSL installations that use the lib64 directory.
+
+  *) [TS-799] Have AdminClient.pm created from .in file.
+
+  *) [TS-2509] Add the const qualifier to pure HttpTunnel member functions.
+
+  *) [TS-2508] Add a *highly* experimental escalation plugin.
+
+  *) [TS-2507] Fix the state transition logging in HttpSM::handle_server_setup_error.
+
+  *) [TS-1648] Segmentation fault in dir_clear_range()
+
+  *) [TS-2500] Fix handling of cache stripe assignment when a disk is
+   taken offline.
+
+  *) [TS-2499] Fix the header_rewrite plugin expansions of the new %<>
+   strings. Author: Alexey Ivanov <aivanov@linkedin.com>.
+
+  *) [TS-2498] Add a build option to install the example plugins.
+
+  *) [TS-2484] Add API support for the two missing overridable APIs:
+         proxy.config.http.cache.max_open_read_retries
+         proxy.config.http.cache.open_read_retry_time
+
+  *) [TS-2497] Failed post results in tunnel buffers being returned to
+   freelist prematurely.
+   Reporter: Thomas Jackson <thjackso@linkedin.com>
+
+  *) [TS-1668] Added HSTS configuration options to ATS
+
+  *) [TS-2495] Reduce the size of HttpVCTableEntry.
+
+  *) [TS-2491] stop other esi plugin unit test programs after error.
+   Author: Yu Qing <zhuangyuan@taobao.com>
+ 
+  *) [TS-1821] make the AIO test pass when build with native aio.
+
+  *) [TS-2412] fix the bug of restarting ATS causes complete cache data
+  loss when use linux-native-aio.
+
+  *) [TS-2488] enhance esi plugin to allow any of the space characters to
+   follow esi starting tags.
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2489] Fix esi plugin problem with contents in comments output 
+   twice when the node list is cached.
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2336] First attempt at moving the Prefetch APIs into some usable
+   state. There's still work to be done here, but separate bugs for that.
+
+  *) [TS-2487] Export PUSH HTTP method constants to the TS API.
+
+  *) [TS-2486] Eliminate SIMPLE_MEMCPY_INIT define.
+
+  *) [TS-2476] Fix size_t format string.
+   Author: Radim Kolar <hsn@sendmail.cz>
+
+  *) [TS-2471] Writing records.config can fail when the disk is full.
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2479] Don't output orphan log after failover sucessfully.
+
+  *) [TS-2370] SSL proxy.config.ssl.server.honor_cipher_order is backwards.
+  Changed the default setting and changed the meaning of it in the code.
+
+  *) [TS-2466] NOT increase the version of records.config when changing
+   the local parameter
+   Author: Yu Qing
+
+  *) [TS-2469] remove libreadline which is gpl licensed.
+   Author: Ben Aitchison <ben@meh.net.nz>
+
+  *) [TS-2235] url_print should NOT output "?" for empty query string,
+   fix two remains.
+   Author: Yu Qing
+
+  *) [TS-2475] Adding new transaction methods in C++ API
+
+  *) [TS-2474] Change proxy.config.net.poll_timeout to 10ms consistently.
+
+  *) [TS-2473] Fix C++ API includes for FreeBSD.
+   Author: Radim Kolar <hsn@sendmail.cz>
+
+  *) [TS-2467] traffic_shell doesn't work with tcl 8.6.
+   Author: Ben Aitchison <ben@meh.net.nz>
+
+  *) [TS-1365] Add a new configuration option, proxy.config.net.poll_timeout,
+   with the same behavior as the command line option --poll_timeout. Also
+   adjust AIO scheduling to correlate to this setting, to avoid additional
+   CPU load. Note that this configuration is generally not necessary to
+   configure, unless you are concerned with system idle CPU consumption.
+
+  *) [TS-2468] Bring back the load balancer plugin.
+
+  *) [TS-2465] libxml2 detection generates an invalid linker path.
+   Author: Radim Kolar <hsn@sendmail.cz>
+
+  *) [TS-2271] Threaded plugin support with 3rd party libraries.
+   Author: Heikki Hannikainen <hessu@hes.iki.fi>
+
+  *) [TS-2464] Remove useless and buggy connection header handling
+
+  *) [TS-2457] Protocol.c: change usage of atoi to strtol.
+   Author: Radim Kolar <hsn@sendmail.cz>
+
+  *) [TS-2459] Fix wrong name for a couple of librecord APIs.
+    Author: Yu Qing <happy_fish100@yahoo.com.cn>
+
+  *) [TS-2463] Crash regression around slow-log feature, when logging an
+   event. This fixes commit c290ce0df2a.
+
+  *) [TS-32] Fix ICP. Author: Gota Adachi <ada@iij.ad.jp>
+
+  *) [TS-2248] Segmentation fault in HttpTunnel with flow control.
+   Author: bettydramit <b13621367396@gmail.com>
+
+  *) [TS-2454] Fix undefined reference to `__sync_fetch_and_sub_8' on ARM
+   32bit system.
+
+  *) [TS-2450] Fix assertion failure for T61String type.
+
+  *) [TS-2117] make hipes plugin build.
+
+  *) [TS-2452] Can't access a deleted object.
+
+  *) [TS-2363] Fix assertion of "Unknown file format type!".
+
+  *) [TS-2448] Fix traffic_cop and traffic_manager to obey the
+   proxy.config.local_state_dir setting.
+
+  *) [TS-2445] Fix problem with 204 responses closing POST requests.
+
+  *) [TS-2434] Use the FATAL error level to handle plugin errors.
+
+  *) [TS-2203] Clarify syslog startup messages for standalone log programs.
+
+  *) [TS-2436] Add a simple integration test harness.
+
+  *) [TS-2355] ATS 4.0.x crashes when using OpenSSL 1.0.1e.
+
+  *) [TS-2432] Fix a race in aio_err_callblk.
+
+  *) [TS-2251] Simplify LogBuffer reference counting.
+
+  *) [TS-2190] Remove cache.log from the cachurl plugin.
+
+  *) [TS-2426] Add a new plugin, xdebug, for cache debugging using HTTP
+   headers.
+
+  *) [TS-2077] Remove pipeline configurations, they were no-op's anyways. We
+   still support pipelining (we always do), it's just not treated specially
+   (or optimized).
+
+  *) [TS-2386] clean up unused files and codes -- round 4.2.
+
+  *) [TS-548] remove Initialize.cc Initialize.h
+
+  *) [TS-2082] remove STANDALONE_IOCORE FIXME_NONMODULAR and NON_MODULAR
+   defines.
+
+  *) [TS-312] Add option to always share keep-alive connections to the origin
+   server.
+
+  *) [TS-2419] Don't close client connection when responding with a 204 and
+   there is no body.
+
+  *) [TS-1146] Add RFC 5077 TLS session ticket support.
+   Author: Wei Sun <sunwei@yahoo-inc.com>
+
+  *) [TS-2401] Use Layout instead of global install path directories.
+
+  *) [TS-2420] Remove STAT_SYNC, CONF_SYNC, and REM_SYNC threads and schedule
+   those continuations in ET_TASK.
+
+  *) [TS-2372] Enable TLS perfect forward security with ECDHE.
+
+  *) [TS-2416] Make TLS the session timeout threshold configurable.
+   Author: Wei Sun <sunwei@yahoo-inc.com>
+
+  *) [TS-2335] adding ts_lua plugin to experimental directory.
+
+  *) [TS-2347] buffer_upload uses unsafe function tempnam(). Replace it
+   with mkstemp().
+
+  *) [TS-1815] Add thread number and port to accept thread name and
+   add the file descriptor number to the ET_AIO thread names.
+
+  *) [TS-2415] Use standard continuations to release UrlRewrite objects.
+
+  *) [TS-2413] Release memory for idle SSL connections.
+   Author: Wei Sun <sunwei@yahoo-inc.com>
+
+  *) [TS-2365] Configure the maximum TLS record size.
+   Author: Wei Sun <sunwei@yahoo-inc.com>
+
+  *) [TS-2351] Bandaid fix for Range request crash related to
+   Read-While-Writer and content length calculations.
+
+  *) [TS-2408] Fix double free of proxy.config.admin.user_id.
+
+  *) [TS-2396] UrlRewrite.cc does not free the queue correctly.
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2382] Partial fix for make install creating man files as root.
+
+  *) [TS-2381] Reorganize TSUrlCreate docs into separate files.
+
+  *) [TS-2377] Install man pages as part of the build.
+
+  *) [TS-2379] Add a new field: '%<chp>', "client_host_port" to LogFormat.
+
+  *) [TS-2374] Abort the producer if the none of it`s consumers is alive.
+
+  *) [TS-2330] Update proxy.config.body_factory.enable_customizations comments
+   in records.config.
+
+  *) [TS-2327] TSRedirectUrlSet does not perform DNS lookup of redirected OS.
+
+  *) [TS-1468] Check vary and accept headers on non-200 responses in cache.
+
+  *) [TS-2352] refine THREAD_ALLOC feature.
+
+  *) [TS-2364] Introduce slice notation to field syntax in log format.
+
+  *) [TS-2360] Fix usage of TSMimeHdrFieldValueStringGet() IDX in some plugins.
+
+  *) [TS-2361] Load regex_remap configuration relative to the configuration
+   directory.
+
+  *) [TS-2359] Make install over existing installation can fail.
+
+  *) [TS-2350] Enhancements to traffic_top.
+
+  *) [TS-2348] Rename tstop to traffic_top.
+
+  *) [TS-2384] Fix regression in key-lookup code between 4.0.x and 4.1.x.
+
+  *) [TS-2340] Fix TextLogObject log rolling.
+   Author: bettydramit <b13621367396@gmail.com>
+
+  *) [TS-2343] Remove the --schema option from Traffic Manager, and the code
+   around it.
+
+  *) [TS-2316] header_rewrite: numerous improvements: cookie based conditions,
+   rule counters, improved documentation.
+   Author: Alexey Ivanov <aivanov@linkedin.com>
+
+  *) [TS-2338] Remove IPRange.cc and .h, and SocksParser.cc.
+
+  *) [TS-2333] Change the SAX callbacks to not clash with libxml2, which broke
+   synthetic metric completely.
+
+  *) [TS-2339] Cleanup Makefile.am, fixing missing / wrong _SOURCES entries.
+
+  *) [TS-2341] Cast TSHttpStatus to int to suppress compiler warning in clang.
+
+  *) [TS-2303] Incorrect docs for negative_caching_enabled.
+    Author: Thomas Jackson <jacksontj.89@gmail.com>
+
+  *) [TS-2712] Explicitly use subdir-objects in automake init.
+
+  *) [TS-2309] Allow mod_generator plugin for lighttpd to accept "SI" postfixes.
+
+
+Changes with Apache Traffic Server 4.1.0
+
+  *) [TS-2252] Fix bison version check on Ubuntu.
+
+  *) [TS-2108] Fix TSConfig to build with bison 3.0
+
+  *) [TS-2311] ESI: Support responses that are of other text content type as
+   well as non-200 status response. Author: Kit Chan
+
+  *) [TS-2321] C++ API: Clean up header code to not use STL containers and use
+   structures directly.
+
+  *) [TS-2323] Implement a .include directive for remap.config.
+
+  *) [TS-2322] Set PCRE malloc hooks globally.
+
+  *) [TS-1955] Range: requests during read-while-writer gets the wrong
+  Content-Length.
+
+  *) [TS-2245] This adds a '2' config state to the ignore mismatch configs.
+
+  *) [TS-2178] Force keep alive off if re-using client 4-tuple and server is
+  not keep alive.
+
+  *) [TS-2264] Fixed problem with EADDR_NOTAVAIL handling.
+
+  *) [TS-2317] Read/write mutex of PluginVC may be held without release.
+   Author: portl4t.cn@gmail.com
+
+  *) [TS-2315] ESI Plugin: fetcher does not handle error gracefully.
+   Author: Kit Chan
+
+  *) [TS-2115] buffer_upload hard-codes "nobody" user/group.
+   Author: Kit Chan
+
+  *) [TS-2008] Cache control with multiple suffixes.
+    Author: bettydramit <b13621367396@gmail.com>
+
+  *) [TS-2247] ua close time in milestone may not set.
+   Author: Gang Li
+
+  *) [TS-2302] Log collation causes error logging to stop.
+
+  *) [TS-2200] TS_HRTIME_xxx in experimental.h is invalid to use.
+   Author: Yu Qing
+
+  *) [TS-2235] url_print should NOT output "?" for empty query string.
+   Author: Yu Qing
+
+  *) [TS-2292] the version of records.config increases unexpectly.
+   Author: Yu Qing
+
+  *) [TS-2277] cluster alarm messages broadcast infinitely.
+   Author: Yu Qing
+
+  *) [TS-2276] manager memory leak in some case.
+   Author: Yu Qing
+
+  *) [TS-1638] less strict on kernel version checking in clustering.
+   Author: Yu Qing
+
+  *) [TS-2265] Remove unused log tags for prob, prcb and cgid.
+
+  *) [TS-2301] Replace the CACHE_READY macro with CacheProcessor::IsCacheReady.
+
+  *) [TS-2300] Remove the HIT_EVACUATE build option.
+
+  *) [TS-2227] Allow for multiple config files for a header_rewrite plugin
+   invocation (be it in remap.config or plugin.config).
+
+  *) [TS-2230] header_rewrite should support the same hook-management that
+  header_filter does for remap rules. This allows per-remap rules that
+  triggers in hooks other than the remap phase.
+
+  *) [TS-2228] Add a set-config operator for header_rewrite plugin.
+
+  *) [TS-2226] Add a set-header operator for header_rewrite plugin.
+
+  *) [TS-2296] improve ConfigProcessor reference counting.
+
+  *) [ TS-2295] update statvfs usage.
+
+  *) [TS-2139] Fix PURGE twice to remove object in cache if
+   enable-interim-cache.
+
+  *) [TS-2216] Fix cquuh log tag, which does not calculate the right
+   string length.
+
+  *) [TS-2275] fix interim cache lossing data if the server process crash.
+   Author: Gang Li
+
+  *) [TS-2291] Add remap_stats plugin to experimental.
+
+  *) [TS-2242] Update core plugins' support_email and vendor_name for
+   consistency.
+
+  *) [TS-1988] cquuc and cquup log tags can have no values.
+
+  *) [TS-2159] Force first log rotation at proxy.config.log.rolling_size_mb.
+
+  *) [TS-2138] Fix the bug that restarting ats cause cache data loss if
+  enable the native-aio.
+
+  *) [TS-2197] Use HttpSM::main_handler to handle the client request stuff.
+
+  *) [TS-2254] On ARM arch, ink_atomic_increment returns wrong value.
+   Author: Yu Qing
+
+  *) [TS-2269] regex_remap plugin does not deal with empty path's properly.
+   Author: Kit Chan
+
+  *) [TS-2270] ESI Plugin can have infinite loop while doing gunzip on
+   responses. Author: Kit Chan
+
+  *) [TS-2268] Add support for opening protocol traffic sockets through the 
+   traffic_manager. Added TSPluginDescriptorAccept into expiremental API.
+
+  *) [TS-2266] Add a "make rat" Makefile target, to create a RAT report. This
+   is used for verifying licensing compliance on the entire source tree.
+
+  *) [TS-2212] Implement the <fsiz> log tag for HTTP requests. This also does
+   a small refactoring of the "atoi" functions in lib/ts, such that we now
+   consistently have both prototypes for all types (with and without a
+   string length parameter).
+
+  *) [TS-2261] Add config option to restore/elevate access to reading files by
+   root when loading plugins.
+
+  *) [TS-2257] Healthcheck plugin can stop watching some events.
+
+  *) [TS-2260] Avoid flooding log when log host is down.
+
+  *) [TS-2259] Introduce failover hosts for logging system.
+
+  *) [TS-2256] Mem stats info is bad when enable reclaimable-freelist.
+
+  *) [TS-2255] TS should not flood printing after log space reach the limit.
+
+  *) [TS-2245] cancel the trigger of CacheVC in openWriteCloseDataDone.
+
+  *) [TS-2232] log level should be change from Status to Debug.
+    Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-2201] split drainIncomingChannel two thread, one handle Broadcast
+   message and other handle Reliable(TCP) request for supporing large cluster.
+
+  *) [TS-2144] Avoid race on e.g. "traffic_server -Cclear" which would crash
+   the process intermittently.
+
+  *) [TS-2217] remove the option to turn off body factory - setting it to 0
+   will result in empty responses.
+
+  *) [TS-2209] add support for lowercasing all substitutions in regex_remap.
+
+  *) [TS-2187] failed assert `nr == sizeof(uint64_t)` in EventNotify::signal().
+
+  *) [TS-2206] The trafficserver RC script does not use absolute path to
+   traffic_line binary.
+
+  *) [TS-2207] CentOS5 out of tree perl module build fails.
+
+  *) [TS-1637] Fix nodes as idle/dead if we have not heard from them in
+   awhile.
+
+  *) [TS-2185] Support to control ClusterCom::sendSharedData frequency.
+
+  *) [TS-2195] Deprecate experimental TSHttpTxnCacheLookupSkip API.
+
+  *) [TS-2176] Do not reset value of api_skip_cache_lookup when reading it.
+    Author: Corey Cossentino <corey@omniti.com>
+
+  *) [TS-2191] Do not reschedule http_sm when the sm_list`s lock is not
+   acquired. This can lose items for the WebUI, which will be fixed in a
+   separate bug.
+
+  *) [TS-2188] Fixes to make healthcheck plugin not segfault, and parse the
+   log files properly. Author: Scott Harris <scott@harrisnet.id.au>
+
+  *) [TS-1086] Avoid edge case returning 304 to an unconditional request.
+   Diagnosis and patch by Mohamad Khateeb.
+
+  *) [TS-2168] Make RecordsConfig.cc more inline with default builds.
+
+  *) [TS-2174] traffic_shell/traffic_line miss some stats value
+
+  *) [TS-2173] RECD_COUNTER type is missing in setTokenValue().
+
+  *) [TS-2165] Introduce cluster-wide logging stats.
+
+  *) [TS-2167] Update apichecker.pl to give suggestions on additional
+   deprecated APIs.
+
+  *) [TS-2163] Remove WDA_BILLING, ACC_ALARMS etc. code and definitions.
+
+  *) [TS-2156] Fix stats trap in different type of threads.
+
+  *) [TS-2160] Remove ats_is_ip_nonroutable and replace it with the less
+   confusing ats_is_ip_linklocal and ats_is_ip_private.
+
+  *) [TS-2158] Properly mark an IP as non-routable for IPv4 and IPv6 link
+   local addresses as well as IPv6 private addresses and IPv4 Carrier Grade
+   NAT addresses from RFC 6598.
+
+  *) [TS-2155] Make a new RAT exclude file that uses the regular expressions
+   now supported. Also cleanup some of minor licensing discrepancies.
+
+  *) [TS-2148] handle_cache_operation_on_forward_server_response ignores value
+    of api_server_response_no_store.
+    Author: Corey Cossentino <corey@cossentino.com>
+
+  *) [TS-2147] Set server_share_sessions to 1 for 'internal' transactions in
+   rfc5861 plugin.
+
+  *) [TS-2114] buffer_upload plugin defines true and false
+    Author: Kit Chan <chanshukit@gmail.com>
+
+  *) [TS-2116] buffer_upload plugin is in the source tree but does not build
+    Author: Kit Chan <chanshukit@gmail.com>
+
+  *) [TS-2094] eliminate xcrun warnings at configure time
+
+  *) [TS-2141] Inconsistent euid cause bad mgmtapi/eventapi sockets.
+
+  *) [TS-2137] Use eventfd instread of pthread signal/wait in ATS.
+
+  *) [TS-287] Fix transaction_active_timeout_in does not trigger on the first
+   request of a Keep-Alive connection. Author: Li Gang <quehan@taobao.com>
+
+  *) [TS-2136] Fix the first proxy.config.http.accept_no_activity_timeout is
+   invalid.
+
+  *) [TS-2089] Introduce configurable collation preproc threads.
+
+  *) [TS-2126] Avoid unnecessary memory copy in LogHost::write()
+
+  *)[ TS-2096] Improve SSL certificate loading error messages.
+
+  *) [TS-2122] Enlarge the 64KB limitation of log buffer size.
+
+  *) [TS-2061] LogFile::write_ascii_logbuffer3() can silently drop log
+   entries.
+
+  *) [TS-2123] Remove useless max_entries_per_buffer option.
+
+
+Changes with Apache Traffic Server 4.0.1
+
+  *) [TS-2161] TSHttpTxnHookAdd memory Leak.
+    Author: bettydramit <b13621367396@gmail.com>
+
+  *) [TS-2154] Lua plugin asserts traffic_server on startup.
+
+  *) [TS-2127] Move hostdb.config to var/trafficserver, together with with the
+   host.db itself.
+
+  *) [TS-1823] remap.config line continuation support.
+    Author: Jim Riggs <jim@riggs.me>
+
+  *) [TS-1597] Document remap.config filters.
+    Author: Jim Riggs <jim@riggs.me>
+
+  *) [TS-2132, TS-2131] ${libexecdir} and $(localstatedir} chowned
+   needlessly chowned to to ATS' user.
+   Author: Tomasz Kuzemko <tomasz@kuzemko.net>
+
+  *) [TS-2130] pthread_setname_np() detection fails on various platforms.
+
+  *) [TS-2129] Check for existence of ExtUtils::MakeMaker.
+
+  *) [TS-2128] Don't link libGeoIP.so.1 into binaries.
+
+  *) [TS-2112] Make libloader compile by default.
+
+  *) [TS-2111] configure check in boost falsely requires 1.50. Reducing it to
+   v1.33, which is what RHEL5 ships with.
+
+
+Changes with Apache Traffic Server 3.3.5
+
+
+  *) [TS-2051] Fix SSL crash due to excess READ_COMPLETE events.
+
+  *) [TS-2099] Using wrong member when setting active timeout.
+
+  *) [TS-2102] SPDY plugin tries to setup protocol handler too early.
+
+  *) [TS-1953] remove version checks from plugins that don't use it and
+   add an example showing off the version API and partial compilation.
+
+  *) [TS-2100] Initialize the SSL/NPN registration mutex.
+
+  * [TS-1987, TS-2097]: Remove duplicate and unused string functions.
+
+  *) [TS-2091] Return an error from RecGetRecordOrderAndId if the stat isn't
+   registered.
+
+  *) [TS-2081] Make the WCCP addr configuration LOCAL.
+
+  *) [TS-2093] Check bounds on plugin stat creation.
+
+  *) [TS-2092] Use of uninitialized member in HdrHeap.
+
+  *) [TS-2052] ET_SSL thread spinning.
+   Author: Can Selcik <cselcik at linkedin.com>
+
+  *) [TS-2090 Make proxy.config.allocator.enable_reclaim default based on
+   build instructions.
+
+  *) [TS-2086] Remove a few more unused configs.
+
+  *) [TS-1685] Remove TS_MICRO and fellas.
+
+  *) [TS-1255] Add more overridable configurations, and fix bugs in how we
+   deal with some of these (all "float" configs were completely broken). I
+   also modified the regression tests to be less easy to fool.
+
+  *) [TS-1976] Prevent an invalid httpport argument being passed from
+   traffic_manager to traffic_server.
+   Author: Thach Tran <tranngocthachs@gmail.com>
+
+  *) [TS-2076] Removed proxy.config.http.accept_encoding_filter_enabled, which
+   is obsolete.
+
+  *) [TS-2075] Cleanup around suboptimal checks on redirects.
+
+  *) [TS-2074] Remove proxy.config.http.server_port and
+   proxy.config.http.server_other_ports remnants.
+
+  *) [TS-2073] Set the defaults for request_hdr_max_size and
+   response_hdr_max_size properly.
+
+  *) [TS-2071] Remove proxy.config.http.session_auth_cache_keep_alive_enabled
+   remnants.
+
+  *) [TS-2072] Remove proxy.config.http.avoid_content_spoofing, and also fix a
+    logical bug around the tests of when to mark the request header dirty.
+
+  *) [TS-1993] SSL certificate chains are loaded from the wrong directory.
+
+  *) [TS-2059] Remove dead code in EnvBlock.cc and processSpawn().
+
+  *) [TS-2057] Removed deprecated proxy port configuration values from
+   records.config.
+
+  *) [TS-1280] Add url match token about cache control rule.
+
+  *) [TS-2064] Fix the authproxy plugin to send an error body.
+
+  *) [TS-2061] Avoid writing outside buffer boundaries in LogFile overfill
+   buffers (for ASCII logging). Author: quehan
+
+  *) [TS-2041] Allow environment values to override records.config settings.
+
+  *) [TS-2044] Avoid logging client running into DENY status infinitely.
+    Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-2030] Build error with --enable-interim-cache on fedora19 x86_64.
+    Author: bettydramit <b13621367396 at gmail dot com>
+
+  *) [TS-1943] Rename mcport and rsport parameters to make them more readable.
+    Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-2046] Move perl contribs to lib/perl, and have make / make install
+   build and install the modules as appropriate.
+
+  *) [TS-954] Better calculation of blocks in volume. Bumped cache DB version.
+
+  *) [TS-2050] Cleanup ink_config.h.in, removing unused symbols.
+
+  *) [TS-1487] [TS-2035] Moved plugin init, added plugin lifecycle hooks,
+   added delay listen for cache. Removed TS_NO_API defined/build option.
+
+  *) [TS-2047] Schedule RamCacheCLFUSCompressor in RamCacheCLFUS::init instead
+   of immediately after instantiation.
+
+  *) [TS-2042] Remove remnants of unused vingid command line option.
+
+  *) [TS-1898] improve cluster read/write performance.
+
+  *) [TS-2036] Enable mgmt update (traffic_line -x) for plugins.
+
+  *) [TS-2037] Fix start-stop-daemon typo in debian init script.
+
+  *) [TS-2003] Fix RAM cache stats when using cluster. Author: Yunkai Zhang.
+
+  *) [TS-1820] Cleanup UNUSED / INK_UNUSED / RELEASE_UNUSED. This also removes
+   the entire mgmt/tools directory, and relevant support in traffic_shell for
+   managing network interfaces.
+
+  *) [TS-2033] Remove EncryptToFile() and mgmt API.
+
+  *) [TS-2027] Initialize the ConnectionCount`s mutex.
+
+  *) [TS-1997] Remove TSHttpTxnCachedUrlSet() API.
+
+  *) [TS-2028] Config parse problems in healthchecks plugin.
+
+  *) [TS-1966] Add new configuration option to control ProxyAllocator size.
+
+  *) [TS-1151] cop may crash due to uninitialized pointer val
+
+  *) [TS-2013] Install the tspush script.
+
+  *) [TS-2012] Use standard C++11 containers in logstats.
+
+  *) [TS-1999] Merge in the healthcheck plugin from GoDaddy.
+
+  *) [TS-1998] Make stats-over-http support configurable URL path.
+
+  *) [TS-1990] Fix core at CacheContinuation::handleDisposeEvent().
+
+  *) [TS-2010] Build fixes for OS X 10.9 and Xcode 5.
+
+  *) [TS-1957] fix If CacheContinuation timeout, timeout Event will be loop
+
+  *) [TS-2007] Add TSNetConnectTransparent API for transparent net connections
+
+  *) [TS-1991] clang complaint: logical not is only applied to the left hand
+   side of this comparison.
+
+  *) [TS-1958] Web UI can crash doing a regex lookup.
+
+  *) [TS-1994] Increase default RAM cache size by a magnitude.
+
+  *) [TS-1978] Segfault when trying to set an error from (remap) plugin. This
+   also fixes a bug where the "default" template was not loaded upon startup.
+
+  *) [TS-1977] Build issues on OSX / clang related to stacksize changes.
+
+  *) [TS-1972] TSNetAcceptNamedProtocol does not receive connections.
+
+  *) [TS-1970] Using ssl_ca_name= in ssl_multicert.config fails.
+
+  *) [TS-1946] Reduce the verbosity of SSL handshake errors.
+
+  *) [TS-1971] Switch jtest over to standard argument parsing.
+
+  *) [TS-1786] Only enable -Werror for development builds.
+
+  *) [TS-1960] Decouple stacksize config from core, this fixes regressions.
+
+  *) [TS-1959] traffic_manager not honoring some records.config settings
+   necessary for e.g. logging.
+
+  *) [TS-745] support interim caching in storage to enable, use
+   '--enable-interim-cache' configure option. 
+
+  *) [TS-1968] Promote header_rewrite plugin from experimental
+
+  *) [TS-1961] Add tsxs support for querying installation variables.
+
+  *) [TS-1886] Allow users to attempt gcc builds on Mac OS X.
+
+  *) [TS-1934] Make geoip_acl experimental plugin compile.
+
+  *) [TS-1948] Remove obsolete TSPluginLicenseRequired and plugin.db.
+
+  *) [TS-1942] Remove username.cache configs, they are obsolete and long gone.
+
+  *) [TS-1496] Enable per transaction flow control.
+
+  *) [TS-1684] Added more ProxyAllocators for faster and local memory
+   allocation.  Have seen a doubling in performance depending on the benchmark.
+   Details in the ticket.
+
+  *) [TS-1962] Don't add POST server connections to the shared pool unless POST
+   keep-alive option is on
+
+
+Changes with Apache Traffic Server 3.3.4
+
+  *) [TS-1940] HostDB gets reinitialized on startup.
+
+  *) [TS-1941] Make Linux native-AIO build cleanly.
+
+  *) [TS-1938] Remove unnecessary thread_id() wrapper in reclaimable freelist.
+    Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+
+Changes with Apache Traffic Server 3.3.3 (never released)
+
+  *) [TS-1936] Make traffic_logstats honor the log-directory as intended.
+
+  *) [TS-1937] Prevent assert on SSL forward proxy connect.
+
+  *) [TS-1907] Using the "ipv6" option for port configuration cancels the
+   "ssl" option.
+
+  *) [TS-1927] Make ats_base64_decode able to handle the URL variant
+
+  *) [TS-1207] Move cacheurl plugin out of experimental
+
+  *) [TS-1857] On CentOS the Lua plugin is built whether Lua is found or not.
+
+  *) [TS-1492]  Prevent net-throttling from locking out the health checks
+   from traffic_cop.
+
+  *) [TS-1827] Make combo_handler be enabled via remap.config, and
+   various other cleanup fixes. Author: Conan Wang and Leif.
+
+  *) [TS-1932] Use a more modern tar format so asf-dist can handle
+   file paths longer that 99 bytes
+
+  *) [TS-1891] Add double-free checking for reclaimable freelist
+    Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1926] Require Lua v5.1, by checking for lua_getfenv(). This is
+   necessary since we are incompatible with Lua v5.2 (for now).
+
+  *) [TS-1921] Fix reclaimable freelist getting stuck in infinite loop.
+    Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1824] TSHttpTxnPushedRespHdrBytesGet() takes an int argument in the
+   implementation, whereas the prototype does not have this.
+
+  *) [TS-1928] False warning when setting log rotation size to exactly 10.
+
+  *) [TS-1812] Remove obsolete syslog_thr_init calls.
+
+  *) [TS-1825] TSPortDescriptorAccept does not use it's argument.
+
+  *) [TS-1925] Remove obsolete MMH hash API.
+
+  *) [TS-1924] Add metalink plugin documentation.
+    Author: Jack Bates <jack@nottheoilrig.com>
+
+  *) [TS-1913] Fix memory issue caused by resolve_logfield_string()
+    Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1915]  header_rewrite uses TSUrlHostSet() when using set-destination
+   PATH. Author: Nick Berry.
+
+  *) [TS-1941] Configured socket buffer sizes are not applied.
+
+  *) [TS-1912] SSL hangs after origin handshake.
+
+  *) [TS-1911] Enforce MIOBufferAccessor accessor API.
+
+  *) [TS-1909] Remove duplicate listen socket conditioning.
+
+  *) [TS-1896] Cleanup of unused defines, sometimes duplicated.
+
+  *) [TS-374] Reduce lock contention in HostDB.
+
+  *) [TS-1728] Assign storage entries to volumes
+     Author: Justin Laue <justin@fp-x.com>
+
+  *) [TS-1899] strtod() does not honor Hex strings on Solaris.
+
+  *) [TS-1894] madvise() not found on Solaris. And some cleanup.
+
+  *) [TS-1765] Make jtest build more like the rest of the code.
+
+  *) [TS-1892] Move msync APIs to ink_memory.h.
+
+  *) [TS-1890] Authproxy plugin caching and reliability fixes.
+
+  *) [TS-1868] TSREMAP_*_STOP does not stop remap plugin evaluation chain.
+
+  *) [TS-1889] Refactor remap plugin request URL handling.
+
+  *) [TS-1887] Make diagnostic location logging more succinct.
+
+  *) [TS-1884] Remove deprecated IPv4-only NetProcessor API.
+
+  *) [TS-1444] [TS-1881] URL lookup with regex through the web interface was broken.
+
+  *) [TS-1880] Use pthread_setname_np to set the thread name on multiple platforms.
+
+  *) [TS-1879] Make the Ptr<> conversion constructor explicit.
+
+  *) [TS-1768] Prefer AC_SEARCH_LIBS to AC_CHECK_LIB to avoid unnecessary linking.
+
+  *) [TS-1877] Fix multiple Lua remap plugin instance creation.
+
+  *) [TS-1770] Unable to create remap rule for SSL sites when accessed as a
+   forward proxy. Author: Mark Harrison.
+
+  *) [TS-1867] The combo_handler plugin crashes when receiving non-200 responses.
+    Author: Conan Wang <conanmind@gmail.com>
+
+  *) [TS-1838] Improve configure.ac to recognize compiler setup better.
+
+  *) [TS-1865] Support DESTDIR in tsxs.
+
+  *) [TS-1864] Illumos / OmniOS needs -m64 with gcc to compile properly on
+   64-bit platforms. We also only support ATS on 64-bit Illumos.
+
+  *) [TS-1811] Make the HostDB sizes variable on the SRV enabled config.
+   This restores compatibility with HostDB's prior to v3.3.1.
+
+  *) [TS-1843] Detect and link libhwloc on Ubuntu.
+
+  *) [TS-1858] Fix redefinition of timersub on Solaris.
+
+  *) [TS-1861] Build fails with reclaimable freelist enabled.
+
+  *) [TS-1860] cacheurl doesn't compile on platforms with pcre/pcre.h
+   (e.g. solaris).
+
+  *) [TS-1729] Fix channel_stats to compile on various Unixen. Note that this
+   is still IPV4 only.
+
+  *) [TS-1839] We fail "make test" on some platforms, due to install
+   directory missing.
+
+  *) [TS-1856] Replace SIZE() macro with COUNTOF() and countof().
+
+  *) [TS-1853] Fix formatting in logstats to be consistenly 2 decimals.
+
+  *) [TS-1852] Fix missing AC_PROG_SED on CentOS 5.9.
+
+  *) [TS-1717] Fix the static build as much as possible.
+
+  *) [TS-1851] Turn HostDBInfo back into a POD type.
+
+  *) [TS-1850] Improve SSL certificate error reporting.
+
+  *) [TS-1848] Fix MIMEHdr::field_value_set_int64() wrapper.
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-986] experimental.h has a dependency on netinet/net.h (for
+  struct in_addr).
+
+  *) [TS-1794 Replace all usage of ts_debug_assert() with ts_assert().
+
+  *) [TS-1834] Force absolute paths to fix logstats unit tests.
+
+  *) [TS-1817] Use the libaio interface to the Linux AIO system calls.
+
+  *) [TS-1721] Integrate tstop into the autotools build.
+
+  *) [TS-1706] Fix documentation for Config::Records.pm.
+
+  *) [TS-1218] Make traffic_cop tracing configureable at build time.
+
+  *) [TS-1846] Remove TestHook.
+
+  *) [TS-1844] Efficient HostDB file allocation.
+
+  *) [TS-1586] Fix the SPDY plugin build under clang on Linux.
+
+  *) [TS-1053] Make combo_handler compiler. Author: Conan Wang.
+
+  *) [TS-1792] Cleanup extremely verbvose debug text on Vary headers.
+
+  *) [TS-1819] Guarantee hwloc initialization.
+
+  *) [TS-1830] Add getpagesize library function.
+
+  *) [TS-1801] Remove proxy.config.net.throttle_enabled, it's an artifact
+   of a debugging case, and should not have been included upstream.
+
+  *) [TS-1829] Values exceed capacity of 'long' data type on 32-bit
+
+  *) [TS-1755] Add basic logstats tests.
+
+  *) TS-1184 Additional whitespace in proxy.config.admin.user_id value results
+   in error.
+
+  *) [TS-1662] Remove remaining use of register storage class.
+
+  *) [TS-846] Eliminate proxy.config.remap.use_remap_processor.
+
+  *) [TS-1802] Remove proxy.config.net.accept_throttle.
+
+  *) [TS-1752] Change type of "len" in jtest to off_t, for better
+  compiler compliance.
+
+  *) [TS-1826] Remove DumpStats/http_dump dead code.
+
+
+Changes with Apache Traffic Server 3.3.2
+
+  *) [TS-621] Allow caching of empty docs (currently only if a header
+   Content-Length: 0 is in the response). New config option is named
+   proxy.config.http.cache.allow_empty_doc, and is disabled by default.
+
+  *) [TS-1778] Remove vestigal extensions.config support.
+
+  *) [TS-1806] bogus buffer sizing in CfgContextUtils.cc.
+
+  *) [TS-1805] Fix stats ExpressionEval in stats xml.
+   Author: Yunkai Zhang
+
+  *) [TS-1783] Eliminate the wpad.dat configuration option (it's unused).
+
+  *) [TS-1787] Eliminate old ink_time code (was probably only used by the
+   now obsolete Web UI). This fixes compiling with gcc 4.8 as well.
+
+  *) [TS-1067] Remove unused config (and code) for bandwidth management.
+
+  *) [TS-1736] Fatal() terminates process without a backtrace.
+    Author: Yunkai Zhang <yunkai.me@gmail.com>
+
+  *) [TS-1791] remove m_mutex acquire&release to avoid deadlock in
+   ~LogBufferList(). Author: Gang Li <quehan@taobao.com>.
+
+  *) [TS-1713] SRV support refine. Now the srv option is able to enable, with
+   no crash. Be care, the hostdb.storage_size or ostdb.size need check.
+
+  *) [TS-1632] In addition to the changes from TS-1674, also add
+   some safety measures assuring that the stats sums don't go.
+   negative. Author: Yakov Kopel.
+
+  *) [TS-1789] Script to compare RecordsConfig.cc default values with
+   records.config.default.in: Author: Mark Harrison.
+
+  *) [TS-1631] Mgmt API to clear stats does not actually clear it.
+   Author: Yakov Kopel.
+
+  *) [TS-1772] Remove multiple TS_INLINE defines.
+
+  *) [TS-1771] add http_load to the build.
+
+  *) [TS-1766] integrate AIO test into the autotools test suite.
+
+  *) [TS-1753] Add remap support to the cacheurl plugin.
+   Author: Mark Harrison <mark@mivok.net>
+
+  *) [TS-1790] authproxy should accept 2xx as authorization success.
+
+  *) [TS-1780] Fix Debuntu build with hardening flags.
+
+  *) [TS-1623, TS-1625] Fixes for logging where the host name was not handled
+    correctly because it was not in the URL.
+
+  *) [TS-1754] Remove unecessary wWarnings from stats evaluation.
+   Author: Yunkai Zhang.
+
+  *) [TS-1169] Eliminate bogus asserts. Credits to Conan Wang.
+
+  *) [TS-1764] Unify MAX/MIN definitions (in ink_defs.h). Also clean
+   up the checks of gcc prior to v3.x (which we no longer support).
+
+  *) [TS-1724] Add tool to compare records.config files to contrib.
+   Author: Mark Harrison <mark@mivok.net>
+
+  *) [TS-1566] dynamic update for string vars does not work.
+   Author: Aidan McGurn <aidan.mcgurn@openwave.com>
+
+  *) [TS-1708] Using tr-pass port option causes requests with large headers to
+   hang.
+
+  *) [TS-1734] Remove dead code that invokes missing vmap_config tool.
+   Author: John Kew <john.v.kew.ii@gmail.com>
+
+  *) [TS-1660] Host field should not has c style terminator.
+
+  *) [TS-1627] Support requests with payload.
+
+  *) [TS-1763] Add Arch Linux config.layout.
+   Author: Galen Sampson <galen.sampson@gmail.com>
+
+  *) [TS-1749] Stats cluster values among nodes are not consistent.
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1761] Improve scheduling and configuration around HostDB disk sync.
+
+  *) [TS-1758] Remove unused overviewPage aggregation functions.
+   Author: Yunkai Zhang.
+
+  *) [TS-1748] Add jtest to the build.
+
+  *) [TS-1730] Supporting First Byte Flush for ESI plugin.
+   Author: Shu Kit Chan <chanshukit@gmail.com>
+
+  *) [TS-1745] Fix typos.
+   Author: Benjamin Kerensa <bkerensa@ubuntu.com>
+
+  *) [TS-1671] Remove AlarmListable from overviewRecord.
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1740] Improve precision of stats values.
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1742] Freelists to use 64bit version w/ Double Word Compare and Swap.
+
+  *) [TS-1356] Ability to set thread affinity with multiple modes.
+
+
+Changes with Apache Traffic Server 3.3.1
+
+  *) [TS-1743] Implement our own hash mechanism for traffic_logstats, since
+   C++11 does not provide a sensical hash<const char*>.
+
+  *) [TS-1628] In validate_unmapped_url(), pristine_url can be invalid().
+
+  *) [TS-1714] Fix some build problems for gcc v4.8.
+
+  *) [TS-1626] Remove WUTS proxy code.
+   Author: Uri Shachar <ushachar@hotmail.com>
+
+  *) [TS-1741] Add plugins examples to the build.
+
+  *) [TS-1058] Add TSHttpTxnCloseAfterResponse experimental API.
+   Author: Yakov Kopel <ykopel@websense.com>
+
+  *) [TS-1733] Retool tsxs so that it can compile multiple source files
+   Author: Dale Ghent <daleg@omniti.com>
+
+  *) [TS-1738] proxy.cluster.cache_total_hits_mem is missing in RecordsConfig.
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1739] Fix TODO within varFloatFromName()
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1559] Server side termination not handled properly when a PluginVC
+   Protocol Plugin is used. Author: Yossi Gottlieb.
+
+  *) [TS-1300] Document the usage of TSUrlStringGet() and derivatives.
+   Author: Uri Shachar.
+
+  *) [TS-1645] increase the file stat resolution on config files
+   Author: Yakov Kopel <ykopel@websense.com>
+
+  *) [TS-1557] update ua_begin_write
+   Author: Aidan McGurn <aidan.mcgurn@openwave.com>
+
+  *) [TS-1320] Reading from SSL origin can starve sending data to client.
+
+  *) [TS-1155] POST requests that are chunked encoding hang when going
+  forward to origin over SSL
+
+  *) [TS-1634] reimplement Lua state management to support reload
+
+  *) [TS-1716] authproxy fails to reserve an argument index in global mode
+
+  *) [TS-1710] esi plugin enhancement such as support forward proxy
+   Author: Yu Qing <zhuangyuan@taobao.com>
+
+  *) [TS-1707] fix FreeBSD store blocks calculation
+   Thanks to Ben Aitchison <ben at meh dot net dot nz>
+
+  *) [TS-1704] null pointer dereference in dns_result
+   Author: Li-Wen Hsu <lwhsu@lwhsu.org>
+
+  *) [TS-1701] segv if header_rewrite is configured with the InkAPI and uses
+   PATH or QUERY conditions. Author: John Kew.
+
+  *) [TS-1700] disable static libraries by default.
+
+  *) [TS-1653] prevent the crash that retry dns lookup after timeout.
+
+  *) [TS-1006] memory management, cut down memory usage.
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1678] Simplify register_record
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1252] stats summary in cluster not working
+   Author: Yunkai Zhang <qiushu.zyk@taobao.com>
+
+  *) [TS-1679] channel_stats plugin: count 5xx response and clean up code.
+   Author: Conan Wang
+
+  *) [TS-1676] FetchSM (TSFetchUrl) cannot handle POST bodies > 32kb.
+
+  *) [TS-1675] Adding API method TSHttpTxnClientIncomingPortSet.
+
+  *) [TS-1674] TSStatIntDecrement is broken: the logic is flawed.
+
+  *) [TS-1673] Remap with recv port is using the wrong port.
+
+  *) [TS-1672] Emergency throttling can continue forever.
+
+  *) [TS-1650] Inactivity cop should use TRY_LOCK instead of LOCK to avoid
+   deadlock.
+
+  *) [TS-1649] Don't use ink_bind if we're not specifying a local port.
+
+  *) [TS-1667] remove unused enum TSIOBufferDataFlags.
+
+  *) [TS-1538] SSL accept performance regression.
+
+  *) [TS-977] RecCore usage cleanup.
+
+  *) [TS-1574] [TS-1577] when read_from_writer, we should not do range
+   acceleration. Range request can invalidate cached copy if the server
+   reponse is 304.
+
+  *) [TS-1609] Traffic Cop doesn't wait() for its children.
+
+  *) [TS-1601] HttpServerSession::release don't close ServerSession if
+   ServerSessionPool locking contention.
+
+  *) [TS-1643] Post requests with no Content-Length header sends default error
+   response.
+
+  *) [TS-1640] SSL certificate reconfiguration only works once.
+
+  *) [TS-1246] trafficserver script error message (in ubuntu).
+
+  *) [TS-1630] Add Lua API for TSHttpTxnCacheLookupStatusGet.
+
+  *) [TS-1423] Added option to do transparent passthrough on connections that
+   are not valid HTTP.
+
+  *) [TS-1599] set OpenSSL allocator with CRYPTO_set_mem_functions.
+
+  *) [TS-1624] Remove JEMALLOC_P use, it seems to have been deprecated.
+
+  *) [TS-1500] let ssl_multicert.config specify sslcert per port
+
+  *) [TS-1621] Adopt ConfigUpdateHandler pattern.
+   Author: Ethan Lai <yzlai@yahoo.com>
+
+  *) [TS-1619] simplify ConfigurationProcessor reconfiguration pattern.
+
+  *) [TS-1617] Build cacheurl when experimental plugins are enabled.
+   Author: Aron Xu.
+
+  *) [TS-1307] [TS-1422] Changed HostDB handling of IPv4 and IPv6. Address
+   resolution preferences can be configured globally and per HTTP proxy
+   port. Transparent connections can now fail over even if
+   use_client_target_addr is set.
+
+  *) [TS-1616] authorization proxy plugin.
+
+  *) [TS-1615] Some spelling errors in source code. Author: Aron Xu.
+
+  *) [TS-1608] IpAllow should use standard config update.
+
+  *) [TS-1580] Mutex leak plugged.
+
+  *) [TS-1596] Added channel_stats plugin to experimental. Author: Conan Wang.
+
+  *) [TS-1607] decouple SSL certificate lookup
+
+  *) [TS-1506] %<cquuh> log symbol will crash TS when requesting a SSL url.
+   Author: Conan Wang.
+
+  *) [TS-1594] ProxyMutexPtr and Ptr<ProxyMutex> are identical.
+
+  *) [TS-1591] gzip plugin should load relative config file.
+
+  *) [TS-1582] C++11 requires space between strings and format specifiers.
+   Author: Luca Rea
+
+  *) [TS-1491] Browser always prompts for authentication (NTLM).
+   Author: Yakov Kopel.
+
+  *) [TS-1553] Detect and build C++11 dependencies.
+
+  *) [TS-1576] reload splitdns.config at runtime.
+   Author: Ethan Lai <yzlai@yahoo.com>
+
+  *) [TS-1551] reload ssl_multicert.config at runtime
+   Author: Ethan Lai <yzlai@yahoo.com>
+
+  *) [TS-1572] Plugin response status change can trigger ATS assertion
+   Author: Uri Shachar
+
+  *) [TS-1433] to make read from writer work
+
+  *) [TS-1564] fix the rolling of Logs created via the API in plugins
+     Author: Craig Forbes <cforbes at qualys dot com>
+
+  *) [TS-1565] TSStringPercentEncode returns one character short in no-op case
+   (no encoding needed). Author: Thach Tran <tranngocthachs at gmail dot com>.
+
+  *) [TS-1561] Plugin esi - Enhancements on ESI plugin.
+     Author: Kit Chan <chanshukit at gmail dot com>
+             Yu Qing <zhuangyuan at taobao dot com>
+
+  *) [TS-1560] plugins need memory barriers for ARM.
+
+  *) [TS-1558] use_client_addr breaks control over upstream HTTP protocol
+   version.
+
+  *) [TS-207] Add raw disk support for FreeBSD.
+
+  *) [TS-1494] sslCa should be set NULL after parseConfigLine in
+   SSLCertLookup.cc.
+
+  *) [TS-1382] make jtest 64bit nice.
+
+  *) [TS-1550] remove unnecessary USE_CONFIG_PROCESSOR define.
+
+  *) [TS-1549] Drop MakeErrorVA, enabling body_factory by default.
+
+  *) [TS-1548] Update documentation for ip_allow.config.
+     Author: Nick Berry
+
+  *) [TS-1223] fix the crash in http_ui show network connections.
+
+  *) [TS-1543] Enable non-debug logging for rfc5861 plugin.
+
+  *) [TS-1512] get volume & hosting work with cluster.
+
+  *) [TS-1542] Fix so that rfc5861 plugin will compile against older versions
+   of TS.
+
+  *) [TS-1446] Make sure age header is enabled in rfc5861 plugin
+
+  *) [TS-1539] Update build package list in README
+
+  *) [TS-1535] FetchSM process_fetch_write should ignore event
+   TS_EVENT_VCONN_WRITE_READY.
+
+  *) [TS-1534] implement the interim cache for ESI parser result.
+
+  *) [TS-1501] vc`s inactivity_timeout event should be schedule in vc`s
+   thread.
+
+  *) [TS-1503] make Event::schedule simple and efficient
+     Author: KuoTai
+
+  *) [TS-1532] make esi plugin support cookie sub keys.
+
+  *) [TS-1526] SNI support breaks IP-based lookup.
+
+  *) [TS-1513] SPDY plugin crashes on connection close.
+
+  *) [TS-1516] use_client_addr breaks parent proxy configuration
+     Author: Uri Shachar.
+
+  *) [TS-1518] detect header_rewrite plugin boost dependency.
+
+  *) [TS-1003] make Prefetch config file reloadable
+
+  *) [TS-1462] SPDY proxy plugin
+
+  *) [TS-1488] Check the event`s cancel flag before put it into the
+   PriorityEventQueue. Author: Chen Bin (kuotai).
+
+  *) [TS-1484] Fix SNI crashes where there is no default certificate
+
+  *) [TS-1473] Fix header_filter plugin for ARM.
+
+  *) [TS-1457] Change chunking output to avoid massive memory use by
+   transforms.
+
+  *) [TS-1469] Manager uses hardcoded FD limit causing restarts forever on
+   traffic_server. Reported By: Thomas Jackson
+
+  *) [TS-1466] disable ssl compression by default.
+
+  *) [TS-1464] mark ink_assert with the noreturn attribute.
+
+  *) [TS-1458] fix LuaJIT include ordering.
+
+  *) [TS-1454] crash when ic_hostname is null in cluster mode.
+
+  *) [TS-1270] add force local cache control in clustering mode.
+
+  *) [TS-1386] thread hang in cluster type=1, which will trigger the
+     throttling.
+
+  *) [TS-1351] raw disk cache disabled when system start.
+
+  *) [TS-1452] gzip build failure with Apple/clang-421.0.57.
+
+  *) [TS-1339] Move fragment offset table from First Doc to Alt header so
+     that fragment offsets are stored per alternate.
+
+  *) [TS-1416] Do not do cache lookup if cop_test_page is true to stop
+     artificial increase of cache misses.
+
+  *) [TS-1364] Rewrite reverse-proxy URL headers in all cases, not just
+     a basic Redirect target.
+
+  *) [TS-1440] Lua transaction and session hook support.
+
+  *) [TS-1266] RAM cache stats are wrong with CLFUS.
+
+  *) [TS-1437] Make the Lua plugin compile on RedHat based distros.
+
+  *) [TS-1436] Added Yahoo directory layout for installation.
+
+  *) [TS-1418] Add automake file to Metalink plugin. Author: Jack Bates.
+   Also reorganize the plugins/experimental Makefile.am stuff slightly.
+
+  *) [TS-1414] gzip plugin enhancements.
+
+
+Changes with Apache Traffic Server 3.3.0
+
+  *) [TS-1427] PluginVCs now use a method similar to actual socket VCs
+   for firing inactivity timeout events.
+
+  *) [TS-1426] protection from NULL deref when using 
+   TSHttpTxnOutgoingTransparencySet after a user agent has disconnected.
+
+  *) [TS-1425] clean up the lingering read before deallocating its buffers
+   when an origin server terminates the connection during a POST request.
+
+  *) [TS-1249] Disable ESI packed nodes by default.
+   Author: Shu Kit Chan <chanshukit@gmail.com>
+
+  *) [TS-1421] Modify the default log configs to avoid logging to stdout
+   or stderr. This helps with TS-306 (but is not a solution for lack of
+   log rotation on traffic.out).
+
+  *) [TS-1415] return 400 if the length of request hostname is zero.
+
+  *) [TS-1379] Better error message when mgmt socket is not available.
+
+  *) [TS-1389] Replace TSHttpTxnServerRespNoStore() with
+   TSHttpTxnServerRespNoStoreSet(), and move it to ts/ts.h. Author: Phil
+   Sorber.
+
+  *) Removed the (experiemental) TSHttpTxnClientDataGet() API. See
+   TS-998 for more details.
+
+  *) [TS-1408] Plugin to implement the stale-while-revalidate and
+    stale-if-error features of RFC5861
+    Author: Phil Sorber <phil@omniti.com>
+
+  *) [TS-1406] add ESI to experimental plugins build.
+
+  *) [TS-1387] Allow proxy.config.http.insert_age_in_response to be
+   overridden. Author: Phil Sorber
+
+  *) [TS-1392] Fix SNI certificate fallback path.
+
+  *) [TS-1385] generic atomic operations API.
+
+  *) [TS-1380] SSL wildcard lookup doesn't find the longest match.
+
+  *) [TS-1315] Fix URL parsing to handle non-HTTP schemes correctly.
+
+  *) [TS-1322] CONNECT to parent proxy has URL with a trailing slash
+    Author: Yakov Kopel
+
+  *) [TS-1370] Restore original stale-wile-revalidate code for posterity
+    Author: Phil Sorber
+
+  *) [TS-1340] Improve IPv6 port example in records.comfig
+    Author: Jan-Frode Myklebust
+
+  *) [TS-1363] Cert path not working using intermdiate certificate.
+
+  *) [TS-895] Added version checks for bison and flex.
+
+  *) [TS-1331] Wrong regex for ip in records config. Authors:
+   Yakov Kopel and Uri Shachar.
+
+  *) [TS-1348] Remove the active timeout when releasing or 
+  binding server_session.
+
+  *) [TS-1350] Detect and prefer LuaJIT.
+
+  *) [TS-538] Remove deprecated INKStats API.
+
+  *) [TS-1345] fix signed/unsigned compilation issues in Vec.
+
+  *) [TS-1343] Stat system doesn't check buffer sizes.
+
+  *) [TS-1342] Lua plugin initial hook support.
+
+  *) [TS-1314] Remove TS_ARG_MAX usage so that platforms with
+  unlimited ARG_MAX can build correctly.
+
+  *) [TS-1341] Remove remnants of TSCacheHookAdd() API.
+
+  *) [TS-1328] TSMgmtIntCreate and TSMgmtStringCreate validation.
+   Author: Yakov Kopel.
+
+  *) [TS-1338] SSL not handling some events properly.
+
+  *) [TS-1258] Need the ability to allow a user to alter the background fill
+   config values on a per transaction basis. Author: Robert Logue.
+
+  *) [TS-961] Add TSPortDescriptor API to support accepting connections with
+   inbound transparency.
+
+  *) [TS-1332] Silence spurious error when adding SSL certificates with
+   alternate names.
+
+  *) [TS-1087] TSHttpTxnOutgoingAddrSet forward declaration does not match
+   implementation.
+
+  *) [TS-1319] Large cache (> 16TB) not working
+  Author: Van Doorn, Jan R <Jan_VanDoorn@cable.comcast.com>
+
+  *) Fix a bug that ram cache and evcuation can not work
+    well in disks larger than 2TB. Author: weijin
+
+  *) [TS-1321] improve RT on Cluster purge missing objects
+   Author: Bin Chen
+
+  *) [TS-1312] Allow to open cache disk without O_DIRECT, for e.g. tmpfs
+   "disk" cache.
+
+  *) [TS-1289] stats codes mess up when disk fail
+
+  *) [TS-959] remove ae_ua filter
+
+  *) [TS-1310] Fix a endless loop in CacheVC::removeEvent.
+   Author: weijin & Hua Cai
+
+  *) [TS-1299] Fix collation in custom logging.
+   Author: bettydramit
+
+  *) [TS-1306] Fix WCCP build problems on FreeBSD.
+
+  *) [TS-1303] Added '=6' as special case for HTTP port configuration for
+     backwards compatibility.
+
+  *) [TS-1301] Add a new API, TSHttpTxnMilestoneGet(), which can be used
+   to retrieve the various internal milestone timers from a plugin.
+
+  *) [TS-1295] Don't assume root privileges during make install.
+   Author: Jan-Frode Myklebust
+
+  *) [TS-1294] initscript mentions using /etc/sysconfig/trafficserver, but
+   doesn't use it. Author: Jan-Frode Myklebust
+
+  *) [TS-1293] initscript should provide chkconfig header.
+   Author: Jan-Frode Myklebust
+
+  *) [TS-1297] Do not link all binaries and plugins with libz and liblzma.
+
+  *) [TS-1296] Do not link all binaries and plugins with libreadline.
+
+
+Changes with Apache Traffic Server 3.2.0
+
+  *) [TS-1286] Cleanup some code around freelists and allocators.
+
+
+Changes with Apache Traffic Server 3.1.4
+
+  *) [TS-1281] make check fail on RHEL 5.x.
+
+  *) [TS-1282] Verbosity settings for Via headers is broken.
+
+  *) [TS-1279] Fix build system for gcc < 4.3.
+
+  *) [TS-1277] Fixed issue with IPv6 URLs and remap configuration.
+
+  *) [TS-1195] Support the use of raw IPv6 address in URLs and Host fields.
+
+  *) [TS-1275] Fix startup problem where /var is on a volatile disk.
+   Author: Eric Connell.
+
+  *) [TS-1274] Transformation plugins can send content-length with 
+   non-identity transfer encoding. Author: Otto van der Schaff.
+
+  *) [TS-1272] workaround for - FATAL: HttpSM.cc:890: failed assert `0`
+
+  *) [TS-1240] Fix race in log buffer queuing code.
+
+  *) [TS-1271] deprecate INKStats API
+
+  *) [TS-1250] Cache inspector does not seem to work properly
+
+  *) [TS-1269] Building outside source tree fails on plugins.
+
+  *) [TS-1222] single tcp connection will limit the cluster throughput.
+
+  *) [TS-475] Accelerated single range requests.
+     Based on initial work by ericb, with help from bwyatt.
+
+  *) [TS-1236] HTTP Accept filters do not work on Illumos.
+
+  *) [TS-1075] Workarounds for linux auto-port issues in transparent
+   deployments.
+
+  *) [TS-672] cleanup Win32 references.
+
+  *) [TS-1181] Make the overridable configs work with "byte" configs.
+
+  *) [TS-1252] Fixed include issues when using mgmtapi.h.
+
+  *) [TS-1248] update HTTP status codes and strings.
+
+  *) [TS-1245] proxy.config.http.connect_ports may be '*'.
+
+  *) [TS-1239] TSHttpTxnServerAddrSet implementation.
+
+  *) [TS-1237] custom log field/filtering improvements.
+
+  *) [TS-1090] SO_MARK and IP_TOS support for Linux.
+
+  *) [TS-1238] RAM cache hit rate unexpectedly low with CLFUS.
+
+  *) [TS-1242] Make it build with some more recent automake versions.
+
+  *) [TS-1241] Memory leaks when using TSHttpSchedule().
+   Author: Aidan McGurn.
+
+  *) [TS-1163] Support for raw disks larger than 2TB on Linux.
+
+  *) [TS-1230] added a paramter to the configure script to allow overriding
+   the calculated ARG_MAX value.
+
+  *) [TS-1208] enable check_memory() in traffic_cop for Linux.
+
+  *) [TS-1217] cop cleanup, remove unused variables & defines.
+
+  *) [TS-1209] Allow for background fill even when a transform plugin is
+   the producer. Author: Robert Logue.
+
+  *) [TS-1229] clean up RecordsCofing.cc, remove unused entries.
+
+  *) [TS-1142] record ram hit in stats.
+
+  *) [TS-1213] update will crash at HttpTransact::process_quick_http_filter.
+
+  *) [TS-1186] Fixed Perl stats API to work with 64-bit stat values
+
+  *) [TS-1227] header_filter "set" operator doesn't work if the header
+   doesn't already exist.
+
+  *) [TS-1210] remove 3.0.x deprecated APIs
+
+  *) [TS-1225] Remove 32 bit doc_len instances.
+
+  *) [TS-1226] Make header_filter support e.g. '=' characters in header
+   values.
+
+  *) [TS-1150] Some performance improvements around the heap guard.
+
+  *) [TS-1216] Remove the initializer for some gcc`s limits.
+
+  *) [TS-1205] double free when RecDataSet in cluster mode.
+
+  *) [TS-1220] stats: cleanup and fix the wrong values.
+
+  *) [TS-1212] can not limit ram cache, also fix the stats.
+
+  *) [TS-1214] another race condition in cache init.
+
+  *) [TS-1130] Wrong CAS operation on ink_time_t on 64 bit system.
+
+  *) [TS-1127] Wrong returned value of incoming port address. This
+   API is deprecated, so I also fixed the regression tests accordingly.
+   Authors: Yakov Kopel and Leif.
+
+  *) [TS-1211] Read backlog config value to set the listen backlog.
+
+  *) [TS-1202] Install traffic_shell man/doc pages in a more appropriate
+   location. Author: Igor Brezac.
+
+  *) [TS-1198] ssl crash when certificates are missing.
+
+  *) [TS-1164] a race condition in cache init.
+
+  *) [TS-1079] Add an API function to turn debugging on for specific
+   transactions/sessions. This also adds a new Debug() functionality in
+   both core and APIs. Author: Uri Shachar.
+
+  *) [TS-1194 Change conversions to build with gcc-4.6 on OmniOS/Solaris.
+   Also cleanup a couple of plugins to use our "core" build environment.
+
+  *) [TS-1192] Remove gethostbyname usage in test code
+
+  *) [TS-1147] deprecate records.config SSL configuration
+
+  *) [TS-1121] Make --disable-diags at least disable Debug etc.
+
+  *) [TS-1191] Change defaults for proxy.config.dns.search_default_domains to
+   not use the search domains in resolv.conf.
+
+  *) [TS-1190] Change defaults for proxy.config.http.share_server_sessions to
+   have a session pool per net-thread. This is best performance for most
+   common use cases.
+
+  *) [TS-1189] Build problem with older versions of OpenSSL.
+
+  *) [TS-1178] cop will kill manager & server, even cop it self, in cluster.
+
+  *) [TS-1156] Fix timestamp log fields, and stop supporting network byte
+   order in various log buffers. See TS-1182 for future enhancements.
+
+  *) [TS-1017] Update logging to be IPv6 compliant, including collation.
+
+  *) [TS-1080] If we run out of Log Buffer slots, we assert.
+
+  *) [TS-1176] Eliminates the need for a delayed "delete" of log buffers.
+   This was a serious race condition, which was previously sold by delaying
+   deletes via a ring buffer.
+
+  *) [TS-1036] Improve some squid log compatiblity. Suggestions from mnot.
+
+  *) [TS-1092] Remove specific SSL termination mode, we either terminate, or
+   we do not.
+
+  *) [TS-1173] Improve the comments in remap.config.
+
+  *) [TS-981] Remove the support for libev (for now at least).
+
+  *) [TS-1172] Remove remap/StringHash.{cc,h}, they are not used.
+
+  *) [TS-1171] http_ui cache lookup, double free.
+
+  *) [TS-1168] Change UrlRewrite::BuildTable to be IPv6 compliant.
+
+  *) [TS-1167] Updates parent socks server setup to be IPv6 compliant.
+
+  *) [TS-1166] Remove proxy/Stuffer.[cc,h] because they were unused.
+
+  *) [TS-1162] UnixNetVConnection assertion when accepting a TLS connection
+
+  *) [TS-1135] support wildcard certificates for ServerNameIndication (SNI)
+
+  *) [TS-1140] Combine IP Allow and QuickFilter.
+
+  *) [TS-1159] Add compiler hints to debug logging
+
+  *) [TS-1143] Fixed edge case problems in IpMap.
+
+  *) [TS-1114] Fix to lock vol for CacheVC::write_vector.
+
+  *) [TS-857] Possibly related race in UnixNetVConnection::mainEvent
+   on inactivity timeout.
+
+  *) [TS-1149] Pretty up automake output.
+
+
+Changes with Apache Traffic Server 3.1.3
+
+  *) [TS-1145] Additional clang build fixes. Author: Darrin Jewell.
+
+  *) [TS-1144] Fix out of tree builds. Author: Darrin Jewell.
+
+  *) [TS-1138] Fixed off by one range error in IpMap.
+
+  *) [TS-462] Support TLS Server Name Indication (SNI)
+
+  *) [TS-1134] TSNetAcceptNamedProtocol should fail if NPN is not supported.
+
+  *) [TS-1133] Make the max host-header length configure.ac configurable.
+
+  *) [TS-1002] fix custom loggin with cquuc cquup, and introduce cquuh
+   to recode the client_req_unmapped_url_host.
+
+  *) [TS-701] Remove mgmt/cli/script_configs.sh
+
+  *) [TS-1124] Move regex_remap, header_filter and stats_over_http from
+   the plugin repo to the main repo.
+
+  *) [TS-1111] fix crash in RangeTransform::handle_event
+
+  *) [TS-1109] fix stack dump crashing
+
+  *) [TS-1123] editline/readline conflicts when building on OSX.
+
+  *) [TS-1116] Fixes for building the source with clang/lvm.
+
+  *) [TS-1115] Fixes for building the source with Intel CC (icc).
+
+  *) [TS-1102] Cleanup of Diagnostics code. Author: Uri Shachar and Leif.
+
+  *) [TS-1117] Remove TS_HAS_PURIFY MACRO
+
+  *) [TS-937] EThread::execute still processing cancelled event
+
+  *) [TS-995] Name change for IP support (ink_inet.h).
+
+  *) [TS-841] support TLS NextProtocol negotiation
+
+
+Changes with Apache Traffic Server 3.1.2
+
+  *) [TS-1110] logstats incorrectly bucketizes all status codes greater 
+  than 599 as 5xx. Author: Manjesh Nilange
+
+  *) [TS-1094] Fixed MIME parser so certain sequences of requests on
+   keep alive conections no longer wedge it.
+
+  *) [TS-1084] Add compile-time format string checking.
+
+  *) [TS-1101] traffic_line -x no longer works, at least not in
+   reasonable time.
+
+  *) [TS-1098] Make RC script support Amazon EC2 Linux AMI.
+
+  *) [TS-1035] EventProcessor::spawn_thread doesn't check that there
+   is enough event threads and segfaults.
+
+  *) [TS-1096] readline support for traffic_shell.
+
+  *) [TS-1097] online help for traffic_shell.
+
+  *) [TS-1066] TSHttpTxnServerReqHdrBytesGet in InkAPI.cc has an extra
+   parameter (int *bytes) from the prototype in <ts/ts.h>.
+   Author: Alistair Stevenson
+
+  *) [TS-1089] Added TSHttpConnectTransparent.
+
+  *) [TS-1088] Added TSHttpTxnOutgoingTransparencySet to API to
+   control outbound transparency.
+
+  *) [TS-1083] Initial SSL next protocol negotiation support.
+
+  *) [TS-1082] Obey existing optimizer CXXFLAGS and CFLAGS at configure time.
+
+  *) [TS-1077] All proxy ports are now configured by
+   proxy.config.http.server_ports. All other port configuration values
+   are deprecated.
+
+  *) [TS-1091] CFLAGS=-w` causes configure script to wrongly guess style of
+   `gethostbyname_r` on BSD flavors. Author: Marc Abramowitz.
+
+  *) [TS-1073] no_dns_just_forward_to_parent configuration parameter is
+   ignored/not used. Author: Kevin Giles.
+
+  *) [TS-996] HTTPHdr::m_host goes stale if HdrHeap::evacuate_from_str_heaps
+   is called. Author: B. Wyatt.
+
+  *) [TS-1041] Populate sockaddr length. Author: James Peach.
+
+  *) [TS-1081] Eliminate an additional copy of the pristine URL string.
+
+  *) [TS-1038] TSHttpTxnErrorBodySet() can leak memory.
+   Author: Brian Geffon
+
+  *) [TS-1049] TS hangs (dead lock) on HTTPS POST requests.
+   Author: Wilson Ho
+
+  *) [TS-1056] Lost UA connections can show up as "400 ERR_INVALID_REQ"
+   in logs.
+
+  *) [TS-1048] Add TS API to enable plugins to use traffic server
+   configuration infrastructure. Author: Bianca Cooper.
+
+  *) [TS-1074] PluginVC should schedule to the local queue instead of the
+  external queue. Author: Brian Geffon
+
+  *) [TS-1032] Assertion when upstream connection is established (with event
+   handled by thread A) and immediately disconnected (handled by thread B).
+   Author: Uri Shachar.
+
+  *) [TS-1052] trafficserver restart does not work (needs to let the old
+   process die). Author: Billy Viera
+
+  *) [TS-1044] Fix TSVConn{Read,Write}VIOGet in UnixNetVConnection.
+    Author: James Peach.
+
+  *) [TS-1040] Teach TSHostLookup to use const. Author: James Peach.
+
+  *) [TS-1071] Debug statement in FetchSM broken. Author: Brian Geffon.
+
+  *) [TS-1057] Expose Base64-encoding through APIs.
+   Author: Yakov Kopel and leif
+
+  *) [TS-1014] slow log can not print logs well on 32-bit system,
+  changed the %d to RPI64. Author: weijin.
+
+  *) [TS-992] Various portability fixes. Author: Piotr Sikora
+
+  *) [TS-999] Deprecate TSUrlDestroy(), it's a no-op. Just make sure
+   to release the marshal buffers as normal.
+
+  *) [TS-245] Add TSStringPercentEncode(), TSUrlPercentEncode(), and
+   TSStringPercentDecode().
+
+  *) [TS-1065] traffic_cop segment fault when enable TRACE_LOG_COP.
+   Author: Conan Wang.
+
+  *) [TS-1029] DNS crash if we free the memory into system. Author: weijin
+
+  *) [TS-1055] Wrong implementation of TSHttpSsnArgGet().
+   Author: Yakov Kopel
+
+  *) [TS-992] Portability fixes. Author: Piotr Sikora.
+
+  *) [TS-949] Fix key->vol hash to be consistent when a disk is marked bad.
+
+  *) [TS-1047] fix lots of spelling mistakes Author: Arno Töll
+
+  *) [TS-1042] correct debug message in FetchSM. Author: James Peach
+
+  *) [TS-1039] use pcre-config to find libpcre. Author: James Peach
+
+  *) [TS-1037] Fix for computing local machine address (was ignoring
+   general addresses).
+
+  *) [TS-1030] Improve hashing mechanism on WKS.
+
+  *) [TS-1028] Avoid triggering assert when running debug build and enabling
+   per-thread connection pols
+
+  *) [TS-1021] Remove extra newline from binary logs.
+
+  *) [TS-1022] Use size specific types for serialized data in binary logs.
+
+
+Changes with Apache Traffic Server 3.1.1
+
+  *) [TS-1020] Make logging to a named pipe work on Solaris.
+
+  *) [TS-1016] Make the update frequency for stats configurable.
+
+  *) [TS-944] Align all configurations of paths to use the same function
+
+  *) [TS-1018] Remove obsolete OpenSSL acceleration code and configs
+
+  *) [TS-1013] Allow ssl_multicert.config to support CA chains per host
+
+  *) [TS-971] make cache evacuate work as expect.
+
+  *) [TS-982] Fixed PluginVC set active/passive address. Clarified that
+   it expects host order input.
+
+  *) [TS-1012] Eliminate proxy.config.http.append_xforwards_header, which
+   is never used.
+
+  *) [TS-1004] Transformation plugins cause connection close when content
+   length is not known ahead. Author: Otto van der Schaaf.
+
+  *) [TS-1011] Fixes for OpenSSL, specifically triggered for Solaris, but
+   generally broken assumptions in the old code.
+
+  *) [TS-989] Logging is now IPv6 compatible.
+
+  NOTE: IP addresses are now encoded as a specific type of binary
+  data, not a mix of unsigned ints and strings. This is a log binary
+  format change and therefore WILL BREAK ACCESS TO LOG DATA FROM
+  PREVIOUS VERSIONS.
+
+  *) [TS-1009] Disable starting ICP continuations if ICP is not enabled.
+
+  *) [TS-1005] Use traffic_line for reload option with RC script.
+   Author: Jan-Frode Myklebust.
+
+  *) [TS-984] Log roll crash fixed.
+
+  *) [TS-997] ATS crashes on remap plugin initialization failure.
+   Author: Manjesh Nilange.
+
+  *) [TS-988] Updated ICP for IPv6.
+
+  *) [TS-994] Removed the extra splace from X-Forwarded-For.
+
+  *) [TS-934] Added some wrapping around NetVConnection for server
+   handling so that connection objects can be safely locked across
+   threads.
+
+  *) [TS-991] Fixed race / stall condition for WCCP during restart.
+
+  *) [TS-985] ts/ts.h uses C++ comments, which are technically not C.
+
+  *) [TS-928] Compile problem in TsErrataUtil on FreeBSD 8.
+
+  *) [TS-973] Eliminate proxy.config.http.verbose_via_str.
+
+  *) [TS-747] Add a new option, proxy.config.ssl.compression, to turn
+   SSL compression on / off. This currently only works with OpenSSL
+   v1.0.0 and later.
+
+  *) [TS-963] Change the way ip_allow is parsed to be consistent with
+   earlier versions (first match). Added default IPv6 allow. Added
+   regression tests for the underlying IpMap class.
+
+  *) [TS-948] Don't reload or load a broken remap.config.
+
+  *) [TS-824] Range requests that result in cache refresh give 200 status
+   response with full contents. Review and suggestions for improvements
+   by Charlie Gero.
+
+  *) [TS-964] Add 64-bit integer plugin APIs for HTTP headers.
+
+  *) [TS-932] Fix m_pending_event == NULL crash in LogCollationClientSM.cc
+   Author: weijin
+
+  *) [TS-830] Better error when there are CLI permission problems, or
+   other problems preventing operation. Author: AdunGaos.
+
+  *) [TS-979] Found a few places where we can segfault with strlcpy.
+
+  *) [TS-938] Fix VIA to avoid loopback address. For Solaris only IPv4
+   is supported.
+
+  *) [TS-945] Convert transparent forward requests to server style when
+     forwarding to a parent proxy. Contributed by Yossi Gottlieb.
+
+  *) [TS-926] IPv6 conversion of iocore.
+
+  *) [TS-967] This is a simplified version of Arno Toell's patch which does
+   the same: Check if any -O options where given, and if so, use those, if
+   not, use our default -O3.
+
+  *) [TS-957] remove IE6 from the white list of ae_ua filter
+
+  *) [TS-955] Fix the logging regression testing.
+
+  *) [TS-962] typo of key name in logstats.cc. Author: Nick Berry.
+
+  *) [TS-958] Fix a few valgrind memory check errors.
+
+  *) [TS-567] A number of memory allocation clean up, and improvements. We
+   now also support building with tcmalloc, jemalloc, and you can also turn
+   off the freelist feature (for better debugging).
+
+  *) [TS-950] Make the HTTP header regressions work on 32-bit, inefficient,
+   but it works.
+
+  *) [TS-956] fix the building with zlib-1.2.5.1.
+
+  *) [TS-953] consolidate string copy/concat for examples.
+
+  *) [TS-924] More efficient sharing of origin connections.
+
+   This also overloads the config for shared connections as follows:
+
+       #  0 - Never
+       #  1 - Share, with a single global connection pool
+       #  2 - Share, with a connection pool per worker thread
+       CONFIG proxy.config.http.share_server_sessions INT 1
+
+   This option is now per-request (remap or plugin) overridable. This is
+   heavily based on William Bardwells and Weijin's work.
+
+  *) [TS-84] Unify all code to use PATH_NAME_MAX, and increase it to 4K.
+
+  *) [TS-943] Implement support for HTTP accept filters.
+
+  *) [TS-168] revert iObject and other changes, make collation client work
+   in the clean way.
+
+  *) [TS-941] invalid cast of off_t math to int. Author: B Wyatt.
+
+  *) [TS-940] Add new configuration option, and solaris support, to set
+  an initial congestion window size, proxy.config.http.server_tcp_init_cwnd.
+
+  *) [TS-931] cluster latency too high, about 24ms. this change will cut
+   the latency from 20+ms to about 10ms. Author: weijin
+
+  *) [TS-896] When logging config changes, we should check if it is remote
+   logging and clean up the collation client related data.
+
+  *) [TS-936] Fix problems with core file generation on Linux.
+
+  *) [TS-930] Fixed TSNetConnect to use network order for port.
+
+  *) [TS-1008] Add API to get TCP connection from SSN.
+
+
+Changes with Apache Traffic Server 3.1.0
+
+  *) Make sure --enable-purify works again
+
+  *) [TS-888] Fix SSL by enabling the right direction on successful setup.
+
+  *) [TS-925] Switch from integer thread IDs to hex thread IDs with the
+   diagnostics output. Author: Brian Geffon.
+
+  *) [TS-919] All of iocore is now IPv6 compatible. Much of this work
+   was contributed by Yossi Gottlieb.
+
+  *) [TS-867] moving to a different thread only if the pluginvc is invoked
+   from a non regular thread.
+
+  *) [TS-876] forward map based on request receive port. Author: Manjesh
+   Nilange.
+
+  *) [TS-880] Major performance problem with second request on same
+   keep-alive connection. This is a partial fix, another 2x improvement
+   can be made, but too risky right now. Authors: William Bardwell and
+   weijin.
+
+  *) [TS-900] TSHttpTxnNewCacheLookupDo (experimental) breaks requests
+   to origin server. Author: William Bardwell.
+
+  *) [TS-918] Allow interval-based rotation for round robin entries.
+   Author: M. Nunberg.
+
+  *) [TS-916] TSHttpIsInternalRequest() crashes if client connection is
+   terminated prematurely. Author: Manjesh Nilange.
+
+  *) [TS-466] Multiline headers handled improperly.
+
+  *) [TS-914] fix iocore_net_main_poll debug info in UnixNet.cc
+   Author: taorui
+
+  *) [TS-911] Remove unecessary lock in HTTP accept.
+
+  *) [TS-908] HostDB now stores IPv6 addresses.
+
+  *) [TS-813] fix http_ui /stat/ to response with content type
+
+  *) [TS-849] fix some variables for traffic_line -s setting
+
+  *) [TS-874] make asf-dist work with git repo
+
+  *) [TS-906] ATS doesn't use proxy.config.http.forward.proxy_auth_to_parent.
+
+  *) [TS-592] DNS internals are now IPv6 compatible. Externally this means
+     DNS servers with IPv6 addresses can be used although only IPv4 responses
+     are useful until other IPv6 upgrades are done.
+
+  *) [TS-907] The source address for DNS requests can be set.
+
+  *) [TS-903] Internal resolver library now IPv6 compatible.
+     IP address matching libraries removed, replaced with IpMap which is
+     faster and IPv6 compatible. SOCKS and IpAllow configurations files
+     will now parse IPv6 ranges, although they do not current have effect.
+
+  *) [TS-901] Valgrind found minor leaks and uninitialized variables.
+   Author: William Bardwell.
+
+  *) [TS-863] Make proxy.config.http.keep_alive_no_activity_timeout_out
+   configurable per transaction. Author: William Bardwell.
+
+  *) [TS-859] Make parent proxy not not work anymore.
+
+  *) [TS-889] Disable warnings on deprecated APIs for Darwin (OSX). This
+   fixes build problesm on OSX 10.7 (Lion) when using the system OpenSSL.
+
+  *) [TS-890] update remap.config comments on regexes to be
+   accurate. Author: Manjesh Nilange.
+
+  *) TS-885 service trafficserver condrestart does the opposite of what´s
+    intended. Author: Jan-Frode Myklebust
+
+  *) [TS-898] "fixed" problems reported by Coverity
+    1. Changed sprintf to snprintf
+    2. ignore error on sscanf that is safe
+
+  *) [TS-807] no config item "proxy.config.hostdb.disable_reverse_lookup" in
+   hostdb. Author: weijin.
+
+  *) [TS-883] Fix help / usage text to be, ehm, correct.
+
+  *) [TS-567] Cleanup, removing unecessary, and unsupported, debug features.
+
+  *) [TS-848] fix crash in net pages and remove useless option.
+
+  *) IpLookup was removed from the experimental API.
+
+  *) proxy.config.http.cache.cache_responses_to_cookies can now be overridden
+   on a per request basis in cache.config.
+
+  *) [TS-816] Other ports now obey specified options for both normal
+   and standalone usage.
+
+  *) [TS-882] traffic_logstats dies when printing log.
+
+  *) [TS-804] libcap required when running standalone.
+
+  *) [TS-730] Allow for the SSL Cipher Suite to be configured.
+
+  *) [TS-881] Better error message from TrafficCop when admin user lookup
+   fails.
+
+  *) [TS-875] TSFetchRestpGet(), TSFetchPageResptGet() and TSFetchUrl() have
+   incorrect asserts. Author: Manjesh Nilange.
+
+  *) [TS-853] Fix a few example plugins to use the new (appropriate) sockaddr
+   based APIs (and not the deprecated APIs).
+
+  *) [TS-870] Fix evacuate relevant codes in cache to work, Author: mohan_zl
+
+  *) [TS-869] The stat code for ram_cache miss is lost, Author: mohan_zl
+
+  *) [TS-873] Wrong code in iocore/net/UnixNet.cc, Author: mohan_zl
+
+  *) [TS-833] Continuation::handleEvent deadbeef fix, authors jplevyak and
+  taorui.
+
+  *) [TS-834] InactivityCopy::check_inactivity crash.
+
+  *) [TS-864] Need more information from CacheHttpInfo (req time, resp time,
+  size). Author: William Bardwell.
+
+  *) [TS-860] Built in error for host not found looks like Internet Explorer
+  error. Author: William Bardwell.
+
+  *) [TS-861] Need a way to disable Vary: Accept-Encoding checking so a plugin
+  can take care of that. Author: William Bardwell.
+
+  *) [TS-862] Need to be able to make keep alive connections not shared on a
+  per-transaction basis. Author: William Bardwell.
+
+  *) [TS-865] Need to get address for a VConn from a plugin similar to how you
+   can get it for the various things in a transaction. Author: William
+   Bardwell.
+
+  *) [TS-868] build fails with --as-needed. Author: Ilya Barygin.
+
+  *) [TS-851] run TS without a real interface
+
+  *) [TS-822] make cluster thread number configable
+
+  *) [TS-845] make proxy.config.cluster.ethernet_interface default to
+   loopback interface: lo on linux and lo0 on bsd derivatives
+
+  *) [TS-847] Bad timeout when using CONNECT method.
+
+  *) [TS-826] TSHttpTxnErrorBodySet() can leak memory. Author: William
+  Bardwell.
+
+  *) [TS-840] Regression checks fail (again) due to faulty assert use.
+   Author: Arno Toell.
+
+  *) [TS-842] remove uninstall target from build system
+
+  *) [TS-648] Use hwloc library when available. This can be disabled
+   with --disable-hwloc.
+
+  *) [TS-398] Autoscaling threads vs Hyper Threading. This requires
+   support for hwloc as well.
+
+  *) [TS-760] Cleanup mgmt types.
+
+  *) [TS-359] Remove DIR_SEP and use slash directly.
+
+  *) [TS-839] Build problems when specifying lmza location.
+
+  *) [TS-828] Various memory leaks and uninitialized values. Author:
+   William Bardwell.
+
+  *) [TS-815] make sure that a missing yacc/bison|flex/lex is *fatal* when
+   building with wccp. Author: Arno Toll.
+
+
+Changes with Apache Traffic Server 3.0.0
+
+  *) [TS-827] TSMimeHdrFieldValueStringInsert() can use freed memory to
+  edit headers. Author: William Bardwell.
+
+  *) [TS-825] negative caching caches responses that should never be
+   cached: Author: William Bardwell.
+
+  *) [TS-820] Restore log buffer size to previous defaults.
+
+  *) [TS-818] Assertion/abort when starting TS with SOCKS proxy enabled.
+   Author: Yakov Markovitch
+
+  *) [TS-810] Typo in switch statement + slight improvement.
+
+  *) [TS-809] ts.h broken when compiling C plugins.
+
+  *) [TS-798] We add broken remap rules when we encounter parse errors of
+   remap.config.
+
+
+Changes with Apache Traffic Server 2.1.9
+
+  *) [TS-805] HostDB wastes a lot of storage for round-robin entries,
+   and the calculations of size are off.
+
+  *) [TS-806] TS_ADDTO removes duplicates, so avoid this by using the
+   -R option to libtool
+
+  *) [TS-793] Improve print statements for ink_freelist debugging.
+
+  *) [TS-679] The external API was changed to make it IPv6 compliant
+     (although it doesn't actually work with IPv6). Old API functions
+     were deprecated but not removed.
+
+  *) [TS-797] Wrong delete used in stats processor.
+
+  *) [TS-769] Fixed infinite loop when getting a 505 response from the
+   origin and the connection is keep-alive.  Now downgrading keep-alive
+   all the time along with the protocol.
+
+  *) [TS-788] Cleaned up the request and response cacheable apis.
+
+  *) [TS-792] Add a config option (disabled by default) to support
+  mlock() and mlockall().
+
+  *) [TS-783] Port ATS to IA64. Author: Arno Toell.
+
+  *) [TS-778] Compile Fails on Solaris 10 (gcc). Author: Igor Brezac.
+
+  *) [TS-404] Add a new API, TSOSIpSet() which allows you to bypass the
+    origin server DNS lookup.
+
+  *) [TS-791] Remove ShmemClean.cc, it's no longer needed.
+
+  *) [TS-786] Add a perl module to edit a records.config configuration
+  file.
+
+  *) [TS-779] Set thread name for various event types.
+
+  *) [TS-784] Don not use class allocator for remap processing when no
+   remap threads are enabled.
+
+  *) [TS-782] Remap processor creates a remap thread even when asked not
+   to.
+
+  *) [TS-781] Cleanup of unusual configs, and better defaults making
+   records.config leaner, and a little more useful.
+
+  *) [TS-780] Retune the number of SSL threads.
+
+  *) [TS-775] Disable cluster autodiscovery via multicast when
+   clustering is disabled. This should hopefully fix run-time errors
+   with Ubuntu 11.x.
+
+  *) [TS-776] memchr in glibc has evolved, and is faster than our
+   version, replaced.
+
+  *) [TS-774] Add a new configure option, --enable-static-libts, which
+   avoids the dynamic linking hassles involved with the dynamic nature
+   of libts. This is for devs only.
+
+  *) [TS-773] Traffic server has a hard limit of 512 gigabytes per RAW
+   disk partition. This fix required changing the disk structure which
+   will result in a total disk cache clear (wipe) after upgrading.
+
+  *) [TS-772] Make proxy.config.http.doc_in_cache_skip_dns overridable.
+
+  *) [TS-770] proxy.config.http.doc_in_cache_skip_dns is not being read
+   from records.config. Author: Yakov Markovitch
+
+  *) [TS-738] 'make check` fails on x86.
+
+  *) [TS-771] Remove remaining v1 log buffer code.
+
+  *) [TS-562] Make --with-openssl path be honored with an -rpath to
+   libtool. This also fixes the same problem with other libraries,
+   e.g. pcre, zlib etc.
+
+  *) [TS-765] Make the backdoor port (8084 by default) only listen on
+   127.0.0.1 .
+
+  *) [TS-762] Range values like -10 are processed. Author: William
+   Bardwell.
+
+  *) [TS-761] Fixed bug where 3 (or more) remap plugins in a chain
+   couldn't be loaded.
+
+  *) [TS-763] When creating multiple SSL accept threads, we use the
+   wrong instantiator.
+
+  *) [TS-757] Change TSNetAccept() API to take an option for enabling
+    (and number of) accept threads.
+
+  *) [TS-759] Makefile in proxy/config handles $DESTDIR incorrectly.
+   Author: Arno Toell
+
+
+Changes with Apache Traffic Server 2.1.8
+
+  *) [TS-750] TS does not fail-over if one origin server for a 2 address
+   hostname. Author: William Bardwell.
+
+  *) [TS-752] If you cancel a scan really quickly you can get a NULL
+  dereference. Also other important performance and correctness fixes
+  for the cache scanning code. Author: William Bardwell and jplevyak.
+
+  *) [TS-749] Connection hangs if origin server goes down in the middle of
+  a response. Author: William Bardwell.
+
+  *) [TS-753] TS-753 Some more cleanup in InkAPI, move a few experimental
+   APIs to ts.h
+
+  *) [TS-751] Experimental TSHttpTxnCacheLookupStatusSet(HIT_STALE) calls
+   cause a crash. Author: William Bardwell
+
+  *) [TS-748] Client side transparency doesn't work on trunk.
+
+  *) [TS-702] FATAL: MIME.cc:1250: failed assert `j < block_count`.
+  Author: Yakov Markovitch
+
+  *) [TS-746] Allow to remove URL fields with "NULL" (or 0) values.
+
+  *) [TS-744] Configurations to control SSL session reuse and cache
+  size. Authors: qianshi and Leif
+
+  *) [TS-716] Bug where NetVC could be double free'd.
+   Fix for DNS crash: bad memory management of HostEnt structures. It is
+   not clear that this fixes the bug entirely.  Some of the stack traces
+   are consistent with this bug, but some are not.
+
+  *) [TS-743] Support separate configs for keep-alive enabled for _in
+   and _out connections.
+
+  *) [TS-741] traffic_manager handles sockets incorrectly.
+
+  *) [TS-742] assert triggered wrongly (in debug builds).
+
+  *) [TS-740] Traffic Server fails to build on kfreebsd.
+   Author: Arno Toell.
+
+  *) [TS-737] Small hackish fix for rc/trafficserver.in so rc/trafficserver
+   will work with FreeBSD. Author: G Todd.
+
+  *) [TS-735] Disable ccache by default, use with --enable-ccache.
+
+  *) [TS-734] Remove unused fields in net stats pages.
+
+  *) [TS-212] Startup service support for Solaris. Author: Igor Brezac.
+
+  *) [TS-629] fix some non-portable char == unsigned char assumptions.
+
+  *) [TS-621] Update records.config.default.in with changed / removed
+   configs.
+
+  *) [TS-641] Remove a bunch of Web UI related configs and code.
+
+  *) [TS-719] libtsutil.so is not self-contained.
+  Author: Igor Brezac.
+
+  *) [TS-729] Fix bugs with Via Headers handling. (Note: This is
+   unlikely to have caused the crash the bug report)
+   Author Leif Hedstrom
+
+  *) [TS-721] Incorrect http hit ratio in stats.
+   This also removes a number of obsoleted stats and also disables
+   stats aggregation in WebOverview.cc, one more nail to WebUI's
+   grave. Author: Leif Hedstrom
+
+  *) [TS-728] Remove the --enable-webui option, since it doesn't
+   produce a running webui anyway. Also remove html2
+
+  *) [TS-685] Rename partition.config because it doesn't have
+   anything todo with disks. Also rename all code related to it
+   so as not to confuse anybody.
+
+  *) [TS-714] Fix traffic_shell hanging on every command
+
+  *) [TS-562] Fix TCL linking to honor custom library dirs.
+   Author: Eric Connell.
+
+  *) [TS-624] make install should not overwrite etc/trafficserver/.
+   Author: Eric Connell.
+
+  *) [TS-465] Allow for existing Server: string to not be overwritten.
+   This adds a new semantic for the value "2" to this option.
+
+  *) [TS-633] Fix reverse mapping with different schemes.
+   Author: Andreas Hartke.
+
+  *) [TS-715] Fixes and cleanup for Perl client. Author: Billy Vierra.
+
+  *) TS-550 Remove an unused / unsupported debug tool. Also update the
+   remap code to use our standard linked list (Queue in this case).
+
+  *) [TS-704] Link traffic_server dynamically to make distros happy,
+  since --disable-static will work.
+
+  *) [TS-545] Clean out more cruft from MIXT legacy.
+
+  *) [TS-713] Honor the offset within do_io_pread.
+
+  *) [TS-712] Fix compile problems with clang / llvm
+
+  *) [TS-545] parent.config (and perhaps other configs) have an unused
+   concept of "tags" for MIXT media. Cleanup remaining MIXT junk.
+
+
+Changes with Apache Traffic Server 2.1.7
+
+  *) [TS-711] Don't schedule remap.config reloads on a network threads.
+   We now schedule this task on an ET_TASK thread, which avoids blocking
+   a net-thread for several seconds (when reloading very large remaps).
+
+  *) [TS-710] Do not dlopen / reload a remap plugin .so more than once.
+
+  *) [TS-588] Change Remap plugin APIs to use URL TSMLoc, and normal
+   ts/ts.h APIs for getting and setting components.
+
+  *) [TS-708] TsConfig doesn't handle backslashes correctly.
+
+  *) [TS-209] add support for raw disk on Solaris: credits: Igor Brezac
+    for both the code and testing!
+
+  *) [TS-705] Fixes for compiling with gcc v4.6.
+
+  *) [TS-706] hardware sector size's over 8K current report an Error
+   but are passed through resulting in lots of disk waste.
+
+  *) [TS-707] The random number generator from 1-23-2011 is using the
+   same seed for all threads = collisions in the cache
+
+  *) [TS-700] Need additional controls in cache.config.
+
+  *) [TS-696] make check fails on libtsutil due to missing libresolv
+   and librt. Author: Eric Connell.
+
+  *) [TS-691] LogFilter not working for "int" types.
+   Author: Eric Connell.
+
+  *) [TS-692] Add an experimental API to modify the outgoing IP address.
+
+  *) TS-676: logic in Store::clear and Store::read_config is wrong.
+  Author: mohan_zl.
+
+  *) [TS-680] Change many typedef void* types to anonymous structs.
+
+  *) [TS-690] Schedule some callbacks on the ET_TASK threads
+
+  *) TS-689 Restore TSMgmtUpdateRegister() to the SDK APIs.
+
+  *) [TS-550] Remove MgmtPlugin.{cc,h}.
+
+  *) [TS-657] Proper validation of RWW settings on startup.
+
+  *) [TS-688] Remove the "tag" modifier from parent.config.
+
+  *) [TS-682] Segfault when partition.config is used.
+
+  *) [TS-687] Build failures on FreeBSD8
+
+  *) [TS-684] config.layout for gentoo linux, may also be used on Fedora
+
+  *) [TS-675] Make redirect and reverse maps work again.
+
+
+Changes with Apache Traffic Server 2.1.6
+
+  *) [TS-678] Add a config option for try-lock retry delay.
+
+   This adds a configuration option
+
+         proxy.config.cache.mutex_retry_delay INT 2
+
+   2ms seems to be fairly optimal, with little detrimental effect on CPU
+   usage. We'll fine tune this further in the next release.
+
+  *) [TS-674] Fixes for cache.config and the "modifiers" to work.
+
+  *) [TS-641] Remove inktomi*.css and some files only referenced by it.
+   Removing mgmt/html2/charting. Remove the now empty mgmt/html2/tune.
+
+  *) [TS-590] Cleanup all SDK APIs to be more consistent. This changes a
+   large number of APIs, so please check updated docs and signatures in
+   ts/ts.h. A new tools, tools/apichecker.pl, can be used to help
+   identifying areas in existing plugins that might need changes.
+
+  *) [TS-673] Make the default configurations more conservative
+   for when content is cacheable.
+
+  *) [TS-672] Remove unused/unreferenced Win32 header files and
+   code paths
+
+  *) [TS-671] Detect install group based on install user.
+
+  *) [TS-644] Fix clustered cache pages crash.
+
+  *) [TS-651] Clear all stats when we ask to clear the local stats.
+
+  *) [TS-489] Remove the "connection collapsing" feature, it was poorly
+   implemented, and caused major problem if enabled. We should redo this
+   for v3.1 in a way that fits with the HttpSM [author: mohan_zl].
+
+  *) [TS-668] Add support for URL stats to traffic_logstats.
+
+  *) [TS-665] Remove HTTP_ASSERT from the code base, use standard asserts.
+
+  *) [TS-663, TS-664] Fixes to WCCP with mask assignments, and trunk build
+   problems.
+
+  *) [TS-662] Make per partition stats for bytes_used work.
+
+  *) [TS-661] Delay the copy of per transaction configs until a plugin
+   actually tries to modify a setting. We also add these settings to the
+   list of configurations that is overridable:
+
+       proxy.config.http.cache.max_open_read_retries
+       proxy.config.http.cache.open_read_retry_time
+
+  *) [TS-660] Cache scan can not be canceled.
+
+  *) [TS-505, TS-506] Changed the defaults to deal with read contention on
+   the cache, this dramatically improves the performance on cache misses.
+
+  *) [TS-655] Reorganize some code to reduce binary foot prints.
+
+  *) [TS-653] Bogus logcat conversion of squid timestamps.
+
+  *) [TS-643] Unable to purge objects on other servers in full cluster mode.
+
+  *) New 64-bit random generator.
+
+  *) [TS-639] Rename the management APIs from INK* to TS*.
+
+  *) [TS-650] Remove the dead v2 stats code.
+
+  *) [TS-649] Dynamic libraries for mgmt APIs.
+
+    This makes libts -> libtsutil, and we now support making .so's for
+    libtsutil.so and libtsmgmt.so. All binaries are changed to use this,
+    except traffic_server which continues to use the libtsutil.a library
+    (for performance on e.g. 32-bit platforms).
+
+    This also renames the public API include file to be
+
+         #include <ts/mgmtapi.h>
+
+  *) [TS-647] Move Layout out of iocore and into lib/ts.
+
+  *) [TS-638] Rename various directories:
+      proxy/mgmt -> mgmt/
+      proxy/mgmt/cop -> cop/
+
+   All "cli" APIs are now also migrated into mgmt/cli, unified into one
+   single cli.
+
+  *) [TS-641] Cleanup of Web2/HTML2.
+
+  *) [TS-636, TS-637] Remove various unused source files.
+
+  *) [TS-631] Rename proxy/http2 -> proxy/http and proxy/mgmt2 to proxy/mgmt.
+
+  *) [TS-582] Add an example to records.config for how to bind a specific IP.
+
+  *) [TS-491] Cluster port was activated even with clustering disabled. This fix also
+   adds monitoring support for the "cli" unix domain socket.
+
+  *) [TS-593] Cleanup of inktomi.com.
+
+  *) [TS-324] Cleaning up some old TCL files and dependencies.
+
+  *) Remove traces of FTP references [TS-324] by purging the now useless TCL
+  bindings to it.
+
+  *) [TS-513] Fix configure issues for sqlite3. This fix eliminates all of
+  SimpleDBM, sqlite3 and bdb dependencies. It also fixes the "make
+  distclean" problem, and clean things up a bit.
+
+  *) [TS-491] Add the CLI interface to Traffic Cop, and make it possible to
+   run traffic_manager without listening on the cluster port.
+
+  *) [TS-583] Build fails if --disable-webui is added.
+
+  *) [TS-618] Removing traces of CCAS/CCASFLAGS.
+
+  *) [TS-627] Fixes for "make check" to succeed (author: Arno Toell).
+
+  *) [TS-632] Fixes for bad cast and cleanup for Intel CC.
+
+
+Changes with Apache Traffic Server 2.1.5
+
+  *) More 64-bit issues has been identified in the SDK and HTTP core, and
+  fixed [TS-620].
+
+  *) Code cleanup of old transparency code and options [TS-613].
+
+  *) We now require a compiler (or libc) that provides atomic
+  operations. This includes gcc 4.1.2 or later, Intel CC, clang (recent
+  versions) as well as Sun's Solaris compilers and libc [TS-618].
+
+  *) Support normal default path for remap plugins [TS-616].
+
+  *) Change default settings for MSIE User-Agent sniffing [TS-615].
+
+  *) Remove remnants from InktoSwitch. This removes the following
+  configurations [TS-614]:
+
+      proxy.config.http.inktoswitch_enabled
+      proxy.config.http.router_ip
+      proxy.config.http.router_port
+
+  *) Modify TSContSchedule to take a thread type, and add
+  TSContScheduleEvery [TS-589].
+
+  *) Added support to allow some select (~50 or so) records.config
+  configurations to be overridable per transaction. This is done via new SDK
+  APIs, as well as a remap plugin provided with the core [TS-599]. The new
+  APIs available are
+
+      TSHttpTxnConfigIntSet()
+      TSHttpTxnConfigIntGet()
+      TSHttpTxnConfigFloatSet()
+      TSHttpTxnConfigFloatGet()
+      TSHttpTxnConfigStringSet()
+      TSHttpTxnConfigStringGet()
+      TSHttpTxnConfigFind()
+
+  *) Eliminate dedicated default DNS for SplitDNS [TS-597]. Author: Zhao
+   Yongming.
+
+  *) Eliminate proxy.config.net.max_poll_delay configs [TS-605].
+
+  *) Old traffic_net configurations are eliminated [TS-601].
+
+  *) Multiple preads: this patch is only active if you call do_io_pread on
+  the cache.  This includes a regression test for do_io_pread which is at
+  least a smoke test of the new code. [TS-61]
+
+  *) Migrate from home-grown regular expression classes to pcre [TS-604]
+
+  *) Reduce number of calls to regex matcher for standard requests with
+   well-known-strings (WKS). [TS-603]
+
+  *) Parse Range: requests a bit better. Prior, a request like like Range:
+   bytes=100-200 would return 0-200. Additionally, Range: bytes=100- would
+   not parse properly. [TS-596]
+
+  *) Remove old, unused configuration code (duplicated) [TS-576].
+
+  *) Bump the SDK version numbers properly [TS-595].
+
+  *) Migrate from our own int64 (et.al) to int64_t / stdint types. This also
+   changes the SDK, so ts/ts.h users should now use int64_t etc. [TS-594].
+
+  *)./configure will now tell us more about its defaults.
+
+  *) Add better tests for eventfd, making sure sys/eventfd.h exists
+   [TS-515].
+
+  *) Stub / base implementation for the Task thread pool [TS-589].
+
+  *) Cleanup of traffic_logstats, and also add support for JSON
+   output. Several new options and query args added to select output format
+   and data [TS-587].
+
+  *) Add back support for using the default DNSHandler from DNS.cc This
+   helps with SplitDNS [TS-580].
+
+  *) Fixes for DNS to properly schedule and initialize [TS-570].
+
+  *) Fix make check so it actually compiles [TS-586].
+
+  *) Remove RAF pieces [TS-584].
+
+  *) Replace the SDKAllocator with a ClassAllocator [TS-577].
+
+     This reduces the amount of memory allocation for plugins, but requires
+     that plugins now religiously release the handles that they are expected
+     to release (i.e. no automatic gc is done for lazy developers).
+
+  *) Fixes for getting the altinfo regression check to succeeds [TS-171].
+
+  *) Fixes for some transform, and other, mismatches of int vs int64 in the
+   new APIs and underlying cache [TS-456].
+
+  *) Eliminate misguided string copies in the SDK [TS-579].
+
+  *) Fix build of ts.h and tsxs when the .in files changes [TS-574].
+
+  *) Move libinktomi++ and librecords to lib/ts and lib/records [TS-571].
+
+  *) Add SDK API calls to directly get the elements of the running TS
+   version [TS-568].
+
+  *) Added WCCP support.
+
+  *) Bring IPv6 functionality back to trunk, for incoming (client)
+   connections [TS-18]. Original author: Tsunayoshi Egawa.
+
+  *) Segfault with HTTPS, fixed by correctly initializing SSLNetVConnection
+   being added to freelist [TS-559].
+
+  *) The old logs.config custom log format is no longer supported. Only the
+   XML custom logs are now supported. This eliminates the config
+
+       proxy.config.log.xml_logs_config
+
+   as well, since it's the only option for custom logs [TS-556].
+
+  *) All log configurations (and stats) are renamed from log2.* to
+   log.*. This is to avoid confusion, since Apache Traffic Server never had
+   the old (obsolete) log system. There's now only one log system, log
+   [TS-555].
+
+  *) Many fixes and improvements on the Stats pages subsystem. This now
+   properly supports (if configured) various internal URLs, like
+   http://{net}, http://{hostdb} etc. [TS-554].
+
+  *) The NewCacheVC is removed [TS-551].
+
+  *) Support for the Alpha processor is eliminated [TS-552].
+
+  *) A number of unecessary memory allocations are removed, improving
+   performance under heavy load. [TS-550, TS-549]
+
+  *) All streaming media (MIXT) configurations are now properly removed from
+   code and default configs [TS-544].
+
+  *) URL scheme was case sensitive in the cache key [TS-474].
+
+  *) Fixes for broken API signatures, additions / modifications to the
+   following API:
+
+     TSReturnCode TSHttpTxnArgSet(TSHttpTxn txnp, int arg_idx, void *arg);
+     TSReturnCode TSHttpTxnArgGet(TSHttpTxn txnp, int arg_idx, void **argp);
+     TSReturnCode TSHttpSsnArgSet(TSHttpSsn ssnp, int arg_idx, void *arg);
+     TSReturnCode TSHttpSsnArgGet(TSHttpSsn ssnp, int arg_idx, void **argp);
+
+     TSReturnCode TSHttpArgIndexReserve(const char* name, const char*
+     description, int* arg_idx); TSReturnCode TSHttpArgIndexNameLookup(const
+     char* name, int* arg_idx, const char** description); TSReturnCode
+     TSHttpArgIndexLookup(int arg_idx, const char** name, const char**
+     description);
+
+     TSReturnCode TSHttpSsnTransactionCount(TSHttpSsn ssnp, int* count);
+
+   This was all combine into [TS-504], but also see [TS-503].
+
+  *) Many fixes for broken regression tests!
+
+  *) RNI is now completely cleaned out [TS-536].
+
+  *) Fixes for SplitDNS (co-author: mohan_zl) [TS-435].
+
+  *) HTTPS to origin servers, with Chunked responses, would hang [TS-540].
+
+  *) Mismatched APIs using "unsigned char*" [TS-458].
+
+  *) Rename / modify TSSetCacheUrl() API, the new prototype is
+
+     TSReturnCode TSCacheUrlSet(TSHttpTxn txnp, const char *url, int
+     length);
+
+   If length == -1, then the API will calculate it using strlen() [TS-520].
+
+  *) All public APIs, structs and defines are now prefixed with "TS" instead
+   of the old "INK". There are two exceptions, for the deprecated INKStats*
+   and INKCoupledStats* APIs [TS-521].
+
+  *) The hooks around "remap" has been organized, and a new hook as been
+   added (for post-remap). New / renamed hooks are
+
+     TS_HTTP_PRE_REMAP_HOOK TS_HTTP_POST_REMAP_HOOK
+
+   In addition, a new API was added, to allow a plugin to skip the remap
+   phase completely:
+
+     TSReturnCode TSSkipRemappingSet(TSHttpTxn txnp, int flag);
+
+   These fixes went in with [TS-529] and [TS-530].
+
+  *) INKHttpTxnSetHttpRetStatus not honored when an API transaction is
+   reenabled with INK_EVENT_HTTP_ERROR [TS-535].
+
+  *) Various defines for version identification has been moved to the public
+   ts/ts.h include file, e.g.
+
+       #define TS_VERSION_STRING             "2.1.6-unstable"
+       #define TS_VERSION_NUMBER              2001006
+       #define TS_VERSION_MAJOR               2
+       #define TS_VERSION_MINOR               1
+       #define TS_VERSION_MICRO               6
+
+   The intended use is for plugins to be able to verify available APIs at
+   compile time (vs the existing runtime checks) [TS-534].
+
+  *) Traffic Server should now build on ARM processors. Commit message is
+   appropriately describing the situation with this CPU:
+
+   This is a sad day of defeat.  Not my defeat, but more a collective human
+   defeat.
+
+   Question: "Chips fabricated today don't have 64bit atomic primitives?"
+   Answer: "Be sad."
+
+   The ARM box we're working on (armv5tejl) doesn't support any 64bit
+   primitives.
+
+   This means we need a method of using a global (yes, giant lock of death)
+   to protect modifications of arbitrary 64bit integers in process space.
+   We could make this less contentious by allocating pagesize/8 mutexs and
+   then protecting an int64 based on its page offset.  Instead, I think we
+   should mobilize to burn these architectures to the ground and use public
+   embarrassment to fix future instruction sets. If another platform has
+   this issue, we'll want to change the define to:
+
+   TS_ARCHITECTURE_LACKS_64BIT_INSTRUCTIONS and turn on the global death
+   lock based on that.
+
+   This does not change performance on any other platform -- it's compile
+   time capital punishment. [TS-533] and [TS-135].
+
+  *) Very old APIs, that have been deprecated since long before the Apache
+   Open Source project, are removed. Also, only three public include files
+   are now available:
+
+     ts/ts.h ts/experimental.h ts/remap.h
+
+  Various other cleanup related to the APIs was also done [TS-522].
+
+
+Changes with Apache Traffic Server 2.1.4
+
+  *) Fixes to clustering, that caused an assert to trigger after the stats
+   changes [TS-519].
+
+  *) Make the checks when to honor the Content-Length: header less strict,
+   against origins without Keep-Alive [TS-500].
+
+  *) Eliminate old ssl_ports feature, it's completely replaced with the
+   connect_ports configuration [TS-517].
+
+  *) New script available to help build plugins, tsxs [TS-512].
+
+  *) Simple, brute force (and efficient) status code stats counters
+   [TS-509].
+
+  *) Generalize RecDumpRecordsHt to use RecDumpRecords which is a
+   callback/map pattern [TS-508].
+
+  *) Fix plugin APIs to be compatible with the 64-bit changes in the
+   core. This is an incompatible change with previous releases [TS-14].
+
+  *) Fixes for stats around origin connection counters, used when allowing
+   for origin connections to be reused between clients [TS-501].
+
+  *) Experimental supoprt for a dedicated DNS thread. This can be enabled
+   with the records.config option
+
+      CONFIG proxy.config.dns.dedicated_thread INT 1
+
+  This feature is possibly useful for very busy forward or transparent
+  proxies [TS-307].
+
+  *) Accept threads can leak some amount of memory. This patch also supports
+   multiple accept threads (very experimental!) [TS-496].
+
+  *) HttpSM has an assertion that checks the client URL against the cache
+   URL, which breaks INKSetCacheUrl [TS-495].
+
+  *) Return value from pcre_exec tested incorrectly [TS-493].
+
+  *) Improved loop detection using the Via header [TS-490].
+
+  *) Fixes for Solaris build (yay, it builds!).
+
+  *) Remove filter.config remnants [TS-486].
+
+  *) Cleanup in InkAPI [TS-485].
+
+  *) Move PKGSYSUSER to ink_config.h.in [TS-482].
+
+  *) Unresponsive server can stall ATS [TS-480].
+
+  *) UrlRewrite cleanup [TS-434].
+
+  *) Build TS with clang (author: Igor Galic) [TS-427].
+
+  *) Better support and handling of DNS round-robin options (author: Zhao
+   Yongming) [TS-313].
+
+  *) Make it possible to "write" Content-Length headers > 2GB [TS-471].
+
+  *) Better support for Age: headers, and avoiding overflows [TS-470].
+
+  *) Added a configure option to size the API stats "slots". The new option
+  is --with-max-api-stats=<n> [TS-454].
+
+  *) In Cache.cc, make snprintf() around Debug statements conditional for
+   performance [TS-459].
+
+  *) Cleanup / optimize Via: string generation [TS-460]. Also make the
+   default for Via: on responses to be disabled (it can leak info).
+
+
+Changes with Apache Traffic Server 2.1.3
+
+  *) Removed the remnants of NCA from the source [TS-455].
+
+  *) New plugin APIs for stats, and making the "v2" (incomplete) stats
+  experimental (no longer built by default) [TS-390]. See
+  https://cwiki.apache.org/confluence/display/TS/NewStatsAPI for more
+  details.
+
+  *) Cleanup in duplicated configs, and obsoleted configs [TS-447] and
+   [TS-451].
+
+  *) Remove some remnants of SNMP [TS-401].
+
+  *) Cleanup of MIX and LDAP/NTLM remnants [TS-443].
+
+  *) Make the target fragment size configurable for the disk cache. This
+   adds a new option, proxy.config.cache.target_fragment_size [TS-445].
+   This should dramatically improve large file disk performance.
+
+  *) Improve build include dependencies [TS-442].
+
+  *) Cleanup / fixes for remap plugin chaining [TS-224].
+
+  *) Support the rc/trafficserver script for FreeBSD [TS-211].
+
+  *) traffic_shell shows wrong RAM cache size > 2GB [TS-439].
+
+  *) Better warnings / errors when bad NIC is configured [TS-327].
+
+  *) Add support for hardware sector sizes 512 - 8192 bytes (e.g. 4096, the
+   new standard). Autodetected for raw devices on Linux (no support for
+   other OSes yet), and added a new configuration
+
+       CONFIG proxy.config.cache.force_sector_size INT 4096
+
+   This change invalidates the entire cache as well, since it's no longer
+   compatible [TS-43].
+
+  *) Added APIs to override the cacheablity of the response [TS-395].
+
+  *) Add OSX support to 'trafficserver' script (author: Dan Mercer)
+   [TS-210].
+
+  *) Fix for (very) large buffers fed to the cache [TS-413].
+
+  *) Forward transparency is available on Linux kernels with TPROXY
+   [TS-291].
+
+  *) Fix defaults / max for DNS retries [TS-424].
+
+  *) Improvements for Perl admin module (author: Adam Faris) [TS-418].
+
+  *) Problems with specifying separate config files for SSL certificates and
+   keys [TS-405].
+
+  *) Logging: Default settings for diagnostic logging [TS-55].
+
+  *) Fixes to Debian layout (author: Igor Galić) [TS-415].
+
+  *) Remove DNS proxy support [TS-422].
+
+  *) rc/trafficserver start/stop quits with bogus status on success (author:
+   Igor Galić) [TS-429].
+
+  *) Increase default max in-flight DNS queries [TS-423].
+
+  *) Update so the pristine URL will work for reverse and forward proxy.
+    Also, clearing the url on transaction close (author: Wendy Huang)
+    [TS-410].
+
+  *) TS fails to use user ID with user name > 8 characters (author: Yakov
+   Markovitch) [TS-420].
+
+  *) Duplication of RAM cache hits and miss statistics (reading 2x) (author:
+   John Plevyak) [TS-453].
+
+
+Changes with Apache Traffic Server 2.1.2
+
+  *) Improvements in resilience against DNS poisoning and forging of
+   response packets [TS-425] and [CVE-2010-2952].
+
+  *) Segmentation fault in INKError when error output is made both in error
+   log and as debug messages (author: Yakov Markovitch) [TS-419].
+
+  *) Debian layout for config.layout (author: Igor Galic) [TS-415].
+
+  *) Eliminate extraneous stats thread [TS-411].
+
+  *) CACHE_FRAG_TYPE is now not a power of 2 [TS-76].
+
+  *) Remove unnecessary stats update [TS-390].
+
+  *) Get basic features to compile with Intel CC [TS-400].
+
+  *) More 64 bit issues, this time in the PluginVC code [TS-380].
+
+  *) Add configure option to enable detailed logging [TS-392].
+
+  *) Make sure to honor user settings for "dirs" (author: Theo Schlossnagle)
+   [TS-399].
+
+  *) Errors on failing to bind / listen on a specified port [TS-247].
+
+  *) Exempt quick filter for 127.0.0.1 [TS-397].
+
+  *) Cleanup after "layout changes" (author: Zhao Yongming) [TS-389].
+
+  *) Fix remaining (non-API) INK64 etc. [TS-365].
+
+  *) Segfault when using show:network [TS-109].
+
+  *) Update all examples to use non-deprecated APIs [TS-266].
+
+  *) Do some cleanup on Connection::fast_connect and
+   Connection::bind_connect (author: Alan M. Carrol) [TS-320].
+
+  *) Remove LLONG config option [Ts-364].
+
+  *) Cleanup some proxy/mgmt2/tools [TS-16].
+
+  *) Cleanup a little more of webui [TS-91].
+
+  *) TCL missing [TS-326].
+
+  *) logstats does not work with layout changes (author: Zhao Yongming)
+   [TS-385].
+
+  *) Convert bogus IOCORE_MachineFatal and IOCORE_ProcessFatal to Warning
+    and MachineFatal respectively based on review of the code and related
+    uses [TS-144].
+
+  *) INKIOBufferReaderCopy, INKIOBufferWrite should take void * instead of
+   char * [TS-67].
+
+  *) Adds APIs for aio disk read and writes using the internal aio support
+    in iocore (author: Wendy Huang) [TS-387].
+
+  *) Solaris 10 (x86) 64-bit patch (author: Igor Brezac) [TS-388].
+
+  *) Fix for 64-bit conversion [TS-385].
+
+  *) Creating transaction specific 'to URL' in case of regex remap match
+   [TS-384].
+
+  *) Backing out m_capacity_host changes [TS-383]
+
+  *) Solaris 10 port work.
+
+
+Changes with Apache Traffic Server 2.1.1
+
+  *) Allow SI decimal multipliers for numeric configuration parameters
+    [TS-361].
+
+  *) Standardize configure options by allowing to specify the location for
+    any third-party library, and split library detection code into separate
+    .m4 files [TS-345].
+
+  *) Reorganization of the path layout system.  Add --enable-layout=LAYOUT
+    configure option that can select layout from config.layout file
+    [TS-280].
+
+  *) HTTP state machine is now 64-bit "clean", allowing for caching and
+   proxying documents larger than 2GB [TS-34].
+
+  *) Fix for truncated Content-Type on TS-generated responses [TS-290].
+
+  *) Performance improvements on cache for larger(ish) objects.
+
+
+Changes with Apache Traffic Server 2.1.0
+
+  *) Support for many more platforms, including FreeBSD, MacOSX and Solaris.
+
+  *) Code cleanup to get the ATS software into a distributable shape. This
+   means that certain things are missing, or not functional (intentionally).
+
+  *) Support for larger Cache Partitions up to .5 PB (Petabytes), reducing
+   seeks/write.
+
+  *) Reduced Cache miss latency (sub millesecond).
+
+  *) RAM Cache pluggability, new algorithm (CLFUS) and optional compression.
+
+  *) Support for TCL v8.6 and later [TS-246].
+
+  *) The cache is now 64-bit "clean".
+
+
+Changes with Apache Traffic Server 2.0.1
+
+  *) Port of CVE-2010-2952 for 2.0.x [TS-425].
+
+  *) Backport part of TS-322 that deals with indexing arrays with char
+   (author: Marcus Ruckert) [TS-334].
+
+  *) Backport TS-336 to 2.0.x. Problems with make install DESTDIR=...
+
+
+Changes with Apache Traffic Server 2.0.0
+
+  *) Change SDK versioning schemes to 2.0 [TS-249).
+
+  *) Minor additions to the SDK (see the docs for details).
+
+  *) Support regexe_map rules in remap.config [TS-80]
+
+
+Changes with Apache Traffic Server 2.0.0-alpha
+
+  *) Code cleanup to get the ATS software into a distributable shape. This
+   means that certain things are missing, or not functional (intentionally).
+
+  *) Ports available for most Linux distros, including 64-bit.
diff --git a/CRUFT.txt b/CRUFT.txt
new file mode 100644
index 00000000..c8e06f2c
--- /dev/null
+++ b/CRUFT.txt
@@ -0,0 +1,49 @@
+CRUFT
+*****
+
+This file is designated for tracking cruft in our code. That is, code paths
+or ugly hacks that were put into place for a reason: Getting stuff to work
+but which could either been done better, or which time will obsolete.
+
+Examples are crude workarounds for broken compilers, libraries, OSes, or
+hardware, or or massive ``#ifdef`` clusters, that are better abstracted away
+into autoconf and convenience wrappers.
+
+If you are new to the project this is a good place to look for explanations
+of why things are the way they are, or help us fix things and make the code
+easier to read and maintain.
+
+
+Store.cc
+========
+``iocore/cache/Store.cc`` contains three different ``#ifdef`` clusters with
+near identical code. Often you will read the same confused comment in three
+places, see for instance: http://issues.apache.org/jira/browse/TS-1707
+
+Web2
+====
+``mgmt/web2`` is very old, very broken, very deeply infested code that needs
+to be removed as it is no longer appropriate, or functional.
+Please see https://issues.apache.org/jira/browse/TS-641 for further refernece.
+
+Java
+====
+
+we should get rid of: ./example/protocol/test/*.java because, as zwoop says
+"friends don't let friends write code in Java".
+
+Plugins
+=======
+
+``geoip_acl`` should be a "helper plugin:, or a library/API which other
+plugins can use.
+
+
+Configuration & Defaults
+========================
+
+Right now our server doesn't work without a reasonably filled records.config
+There are varying opinions on how this could or should be fixed, however one
+issue that arrises is that default configuration options are often set ad-hoc
+where ever they are needed as #defines. This should instead be consolidated
+into a single place.
diff --git a/INSTALL b/INSTALL
new file mode 100644
index 00000000..597bb565
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,88 @@
+APACHE TRAFFIC SERVER UNIX QUICKSTART
+-------------------------------------
+
+For complete installation documentation, see the on-line documentation at
+
+    http://trafficserver.apache.org/docs
+
+
+Various popular platforms have up-to-date build instructions available
+online, at
+
+    https://cwiki.apache.org/confluence/display/TS/Building
+
+
+BUILD AND INSTALLATION
+----------------------
+
+Configure & Build from Git source tree:
+    $ autoreconf -if  # generate the configure script and Makefile.in files
+
+On Linux, OSX:
+    $ ./configure [--prefix=PREFIX]
+    $ make
+
+On OpenSolaris and FreeBSD:
+    $ ./configure [--prefix=PREFIX]
+    $ gmake
+
+To install:
+    $ sudo make install
+
+* Building on FreeBSD requires GNU make. This is the preferred make
+  on all platforms.
+
+* Replace PREFIX with the filesystem path under which Traffic Server
+  should be installed.  Default PREFIX is "/usr/local" (without the
+  quotes).
+
+* If you want to build using different layout see the config.layout
+  file for possible alternatives. You can create your own layout
+  and enable it with ./configure --enable-layout=ID, where ID is
+  the layout name you have created.
+
+* The easiest way to find all of the configuration flags
+  for Traffic Server is to run ./configure --help.
+
+
+By default the build will use the highest level of compiler
+optimization. To alter this, specify your own optimizer flags at
+configuration time:
+
+    $ ./configure CXXFLAGS=-Os CFLAGS=-Os
+
+To compile with an alternate set of compilers, e.g. LLVM/Clang
+
+    $ ./configure CC=clang CXX=clang++
+
+
+INITIAL CONFIGURATION
+---------------------
+
+Next set the cluster interface in 'records.config'. The network
+interface name will vary depending on the host operating system.
+
+For example:
+    Linux: CONFIG proxy.config.cluster.ethernet_interface STRING eth0
+    OS X: CONFIG proxy.config.cluster.ethernet_interface STRING en0
+    FreeBSD: CONFIG proxy.config.cluster.ethernet_interface STRING em0
+    OpenSolaris: CONFIG proxy.config.cluster.ethernet_interface STRING e1000g0
+
+To start the Traffic Server process stack (TC, TM, TS):
+    $ sudo PREFIX/bin/trafficserver start
+
+
+INSTALLATION HELP
+-----------------
+
+The Apache Traffic Server group cannot field user's installation
+questions.  There are many valuable forums to help you get started.
+Please refer your questions to the appropriate forum, such as the
+Users Mailing List at
+
+    http://cwiki.apache.org/confluence/display/TS/Traffic+Server
+
+Thanks for using the Apache Traffic Server, version 5.
+
+             The Apache Software Foundation
+             http://www.apache.org/
diff --git a/LAYOUT b/LAYOUT
new file mode 100644
index 00000000..a6fb1d3f
--- /dev/null
+++ b/LAYOUT
@@ -0,0 +1,32 @@
+The Traffic Server 3.x Default LAYOUT
+--------------------------------
+
+` ........................... Top-Level Traffic Server Directory
+|
+|
+|-- bin ..................... Binaries
+|-- etc ..................... Configuration files
+|   `-- trafficserver
+|       |-- body_factory
+|       |   `-- default
+|       |-- internal
+|       `-- snapshots
+|-- include
+|   `-- ts
+|-- lib
+|   `-- trafficserver
+|-- libexec
+|   `-- trafficserver
+|-- share
+|   `-- trafficserver
+|       |-- configure
+|       |   `-- helper
+|       |-- images
+|       |-- include
+|       |-- monitor
+|       `-- mrtg
+`-- var
+    |-- log
+    |   `-- trafficserver ... Log files
+    `-- trafficserver ....... Runtime data
+
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 00000000..b2e6b61e
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,427 @@
+
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+                        http://www.apache.org/licenses/
+
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+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+~~~
+
+Copyright (C) 2009 Yahoo! Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+~~~
+
+Mersenne Twister License
+
+   Copyright (C) 2004, Makoto Matsumoto and Takuji Nishimura,
+   All rights reserved.                          
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+     1. Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.
+
+     2. Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the distribution.
+
+     3. The names of its contributors may not be used to endorse or promote 
+        products derived from this software without specific prior written 
+        permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+~~~
+
+TK 8.3 License
+
+This software is copyrighted by the Regents of the University of
+California, Sun Microsystems, Inc., and other parties.  The following
+terms apply to all files associated with the software unless explicitly
+disclaimed in individual files.
+
+The authors hereby grant permission to use, copy, modify, distribute,
+and license this software and its documentation for any purpose, provided
+that existing copyright notices are retained in all copies and that this
+notice is included verbatim in any distributions. No written agreement,
+license, or royalty fee is required for any of the authorized uses.
+Modifications to this software may be copyrighted by their authors
+and need not follow the licensing terms described here, provided that
+the new terms are clearly indicated on the first page of each file where
+they apply.
+
+IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
+FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
+DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
+IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
+NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
+MODIFICATIONS.
+
+GOVERNMENT USE: If you are acquiring this software on behalf of the
+U.S. government, the Government shall have only "Restricted Rights"
+in the software and related documentation as defined in the Federal
+Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
+are acquiring the software on behalf of the Department of Defense, the
+software shall be classified as "Commercial Computer Software" and the
+Government shall have only "Restricted Rights" as defined in Clause
+252.227-7013 (c) (1) of DFARs.  Notwithstanding the foregoing, the
+authors grant the U.S. Government and others acting in its behalf
+permission to use and distribute the software in accordance with the
+terms specified in this license.
+
+~~~
+
+BIND license
+
+Copyright (c) 1985, 1989, 1993
+   The Regents of the University of California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. Neither the name of the University nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+
+
+Portions Copyright (c) 1993 by Digital Equipment Corporation.
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies, and that
+the name of Digital Equipment Corporation not be used in advertising or
+publicity pertaining to distribution of the document or software without
+specific, written prior permission.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+
+Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+~~~
+
+Copyright (c) 1994-2011 John Bradley Plevyak, All Rights Reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+~~~
+
+Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
+Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
+Copyright (C) 2005 Ariya Hidayat (ariya@kde.org)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+For the strlcat, strlcpy in inktomi++/ink_string.cc:
+
+Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 00000000..0be55a6e
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,120 @@
+#
+# Top-level Makefile.am for Traffic Server.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Local Macros
+# http://www.gnu.org/software/automake/manual/automake.html#Local-Macros
+ACLOCAL_AMFLAGS = -I build
+
+export CCACHE_BASEDIR
+
+# TODO: There's still some weirdness in the dependencies between proxy
+# and mgmt, hence we have to build proxy/hdrs first.
+
+# proxy/api/ts has to be built first, since so much of libraries and "core
+# depends on the generates ts/ts.h include file.
+
+SUBDIRS =  proxy/api/ts iocore lib proxy/hdrs proxy/shared mgmt proxy cmd plugins tools example rc doc
+
+
+DIST_BUILD_USER=`id -nu`
+DIST_BUILD_USER_GROUP=`id -ng`
+DISTCHECK_CONFIGURE_FLAGS=--with-user=${DIST_BUILD_USER} --with-group=${DIST_BUILD_USER_GROUP}
+
+EXTRA_DIST=CHANGES INSTALL STATUS NOTICE LAYOUT LICENSE example contrib README-EC2 REVIEWERS
+
+# Default value when creating release candidates
+RC = 0
+
+# igalic can't remember if this is make check or make test and neither should you.
+test: check
+
+installcheck-local:
+	$(DESTDIR)$(bindir)/traffic_server -R 1
+
+distclean-local:
+	-rm -f config.nice
+
+doxygen:
+	@cd doc && $(MAKE) $(AM_MAKEFLAGS) $@
+
+asf-dist: asf-distdir
+	tardir=$(distdir) && $(am__tar) --mtime=./configure.ac | bzip2 -9 -c >$(distdir).tar.bz2
+	@$(am__remove_distdir)
+
+asf-dist-rc: asf-distdir
+	tardir=$(distdir) && $(am__tar) --mtime=./configure.ac | bzip2 -9 -c >$(distdir)-rc$(RC).tar.bz2
+	@$(am__remove_distdir)
+
+asf-distdir:
+	@$(am__remove_distdir)
+	test -d .git && git clone . $(distdir)
+	cd $(distdir) && git submodule update --init && autoreconf -i
+	rm -rf -- $(distdir)/autom4te.cache $(distdir)/.git $(distdir)/.gitignore $(distdir)/ci
+
+asf-dist-sign: asf-dist
+	md5sum -b $(distdir).tar.bz2 >$(distdir).tar.bz2.md5
+	sha1sum -b $(distdir).tar.bz2 >$(distdir).tar.bz2.sha1
+	gpg --armor --output $(distdir).tar.bz2.asc  --detach-sig $(distdir).tar.bz2
+
+asf-dist-sign-rc: asf-dist-rc
+	md5sum -b $(distdir)-rc$(RC).tar.bz2 >$(distdir)-rc$(RC).tar.bz2.md5
+	sha1sum -b $(distdir)-rc$(RC).tar.bz2 >$(distdir)-rc$(RC).tar.bz2.sha1
+	gpg --armor --output $(distdir)-rc$(RC).tar.bz2.asc  --detach-sig $(distdir)-rc$(RC).tar.bz2
+
+release: asf-dist-sign
+	git tag -fs -m "Release $(VERSION)" $(VERSION)
+
+rel-candidate: asf-dist-sign-rc
+	git tag -fs -m "Release Candidate $(VERSION)-rc$(RC)" $(VERSION)-rc$(RC)
+
+examples: all
+	@cd example && $(MAKE) $(AM_MAKEFLAGS)
+
+install-examples: examples
+	@cd example && $(MAKE) $(AM_MAKEFLAGS) install pkglibdir=$(pkglibexecdir)
+
+install-data-hook:
+	@cd doc && $(MAKE) $(AM_MAKEFLAGS) install-man
+
+rat:
+	java -jar $(top_srcdir)/ci/apache-rat-0.11-SNAPSHOT.jar -E $(top_srcdir)/ci/rat-regex.txt  -d $(top_srcdir)
+
+submodules:
+	git submodule update --init
+
+help:
+	@echo 'all             default target for building the package' && \
+	echo 'check            run the test suite, if any' && \
+	echo 'clean            remove whatever make created' && \
+	echo 'distclean        remove whatever configure created' && \
+	echo 'dist             DEPRECATED: recreate source package' && \
+	echo 'examples         make examples' && \
+	echo 'asf-dist         recreate source package' && \
+	echo 'asf-dist-sign    recreate source package, with checksums and signature' && \
+	echo 'release          recreate a signed release source package and a signed git tag' && \
+	echo 'rel-candidate    recreate a signed relelease candidate source package and a signed git tag' && \
+	echo 'distcheck        verify dist by performing VPATH build and then distclean' && \
+	echo 'rat              produce a RAT licence compliance report of the source' && \
+	echo 'submodules       update the git submodules' && \
+	echo 'doxygen          generate doxygen docs in doc/html dir' && \
+	echo 'help             display this list of make targets' && \
+	echo 'install          install by copying the built files to system-wide dirs' && \
+	echo 'install-strip    same as install but then strips debugging symbols' && \
+	echo 'install-examples install examples by copying the built files to system-wide dirs'
+
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 00000000..62754da8
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,1146 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Top-level Makefile.am for Traffic Server.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
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+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = .
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/configure $(am__configure_deps) \
+	$(top_srcdir)/lib/perl/lib/Apache/TS.pm.in INSTALL README \
+	build/aux/ar-lib build/aux/compile build/aux/config.guess \
+	build/aux/config.sub build/aux/install-sh build/aux/missing \
+	build/aux/ltmain.sh $(top_srcdir)/build/aux/ar-lib \
+	$(top_srcdir)/build/aux/compile \
+	$(top_srcdir)/build/aux/config.guess \
+	$(top_srcdir)/build/aux/config.sub \
+	$(top_srcdir)/build/aux/install-sh \
+	$(top_srcdir)/build/aux/ltmain.sh \
+	$(top_srcdir)/build/aux/missing
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
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+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
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+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
+ configure.lineno config.status.lineno
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES = lib/perl/lib/Apache/TS.pm
+CONFIG_CLEAN_VPATH_FILES =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+SOURCES =
+DIST_SOURCES =
+RECURSIVE_TARGETS = all-recursive check-recursive cscopelist-recursive \
+	ctags-recursive dvi-recursive html-recursive info-recursive \
+	install-data-recursive install-dvi-recursive \
+	install-exec-recursive install-html-recursive \
+	install-info-recursive install-pdf-recursive \
+	install-ps-recursive install-recursive installcheck-recursive \
+	installdirs-recursive pdf-recursive ps-recursive \
+	tags-recursive uninstall-recursive
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+am__recursive_targets = \
+  $(RECURSIVE_TARGETS) \
+  $(RECURSIVE_CLEAN_TARGETS) \
+  $(am__extra_recursive_targets)
+AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
+	cscope distdir dist dist-all distcheck
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+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
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+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
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+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
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+ETAGS = etags
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+distdir = $(PACKAGE)-$(VERSION)
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+am__remove_distdir = \
+  if test -d "$(distdir)"; then \
+    find "$(distdir)" -type d ! -perm -200 -exec chmod u+w {} ';' \
+      && rm -rf "$(distdir)" \
+      || { sleep 5 && rm -rf "$(distdir)"; }; \
+  else :; fi
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+  while test -n "$$dir1"; do \
+    first=`echo "$$dir1" | sed -e "$$sed_first"`; \
+    if test "$$first" != "."; then \
+      if test "$$first" = ".."; then \
+        dir2=`echo "$$dir0" | sed -e "$$sed_last"`/"$$dir2"; \
+        dir0=`echo "$$dir0" | sed -e "$$sed_butlast"`; \
+      else \
+        first2=`echo "$$dir2" | sed -e "$$sed_first"`; \
+        if test "$$first2" = "$$first"; then \
+          dir2=`echo "$$dir2" | sed -e "$$sed_rest"`; \
+        else \
+          dir2="../$$dir2"; \
+        fi; \
+        dir0="$$dir0"/"$$first"; \
+      fi; \
+    fi; \
+    dir1=`echo "$$dir1" | sed -e "$$sed_rest"`; \
+  done; \
+  reldir="$$dir2"
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+LIBPCRE = @LIBPCRE@
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+LIBRESOLV = @LIBRESOLV@
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+LIPO = @LIPO@
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+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
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+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
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+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
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+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
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+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
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+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
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+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
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+arpa_nameser_compath = @arpa_nameser_compath@
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+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
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+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
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+enable_remote_cov_commit = @enable_remote_cov_commit@
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+exp_localstatedir = @exp_localstatedir@
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+exp_sysconfdir = @exp_sysconfdir@
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+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
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+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
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+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
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+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
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+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
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+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+# Local Macros
+# http://www.gnu.org/software/automake/manual/automake.html#Local-Macros
+ACLOCAL_AMFLAGS = -I build
+
+# TODO: There's still some weirdness in the dependencies between proxy
+# and mgmt, hence we have to build proxy/hdrs first.
+
+# proxy/api/ts has to be built first, since so much of libraries and "core
+# depends on the generates ts/ts.h include file.
+SUBDIRS = proxy/api/ts iocore lib proxy/hdrs proxy/shared mgmt proxy cmd plugins tools example rc doc
+DIST_BUILD_USER = `id -nu`
+DIST_BUILD_USER_GROUP = `id -ng`
+DISTCHECK_CONFIGURE_FLAGS = --with-user=${DIST_BUILD_USER} --with-group=${DIST_BUILD_USER_GROUP}
+EXTRA_DIST = CHANGES INSTALL STATUS NOTICE LAYOUT LICENSE example contrib README-EC2 REVIEWERS
+
+# Default value when creating release candidates
+RC = 0
+all: all-recursive
+
+.SUFFIXES:
+am--refresh: Makefile
+	@:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign'; \
+	      $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    echo ' $(SHELL) ./config.status'; \
+	    $(SHELL) ./config.status;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	$(SHELL) ./config.status --recheck
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	$(am__cd) $(srcdir) && $(AUTOCONF)
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	$(am__cd) $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
+$(am__aclocal_m4_deps):
+lib/perl/lib/Apache/TS.pm: $(top_builddir)/config.status $(top_srcdir)/lib/perl/lib/Apache/TS.pm.in
+	cd $(top_builddir) && $(SHELL) ./config.status $@
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+distclean-libtool:
+	-rm -f libtool config.lt
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run 'make' without going through this Makefile.
+# To change the values of 'make' variables: instead of editing Makefiles,
+# (1) if the variable is set in 'config.status', edit 'config.status'
+#     (which will cause the Makefiles to be regenerated when you run 'make');
+# (2) otherwise, pass the desired values on the 'make' command line.
+$(am__recursive_targets):
+	@fail=; \
+	if $(am__make_keepgoing); then \
+	  failcom='fail=yes'; \
+	else \
+	  failcom='exit 1'; \
+	fi; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-recursive
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscope: cscope.files
+	test ! -s cscope.files \
+	  || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
+clean-cscope:
+	-rm -f cscope.files
+cscope.files: clean-cscope cscopelist
+cscopelist: cscopelist-recursive
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
+
+distdir: $(DISTFILES)
+	$(am__remove_distdir)
+	test -d "$(distdir)" || mkdir "$(distdir)"
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+	-test -n "$(am__skip_mode_fix)" \
+	|| find "$(distdir)" -type d ! -perm -755 \
+		-exec chmod u+rwx,go+rx {} \; -o \
+	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
+	|| chmod -R a+r "$(distdir)"
+dist-gzip: distdir
+	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	$(am__post_remove_distdir)
+
+dist-bzip2: distdir
+	tardir=$(distdir) && $(am__tar) | BZIP2=$${BZIP2--9} bzip2 -c >$(distdir).tar.bz2
+	$(am__post_remove_distdir)
+
+dist-lzip: distdir
+	tardir=$(distdir) && $(am__tar) | lzip -c $${LZIP_OPT--9} >$(distdir).tar.lz
+	$(am__post_remove_distdir)
+
+dist-xz: distdir
+	tardir=$(distdir) && $(am__tar) | XZ_OPT=$${XZ_OPT--e} xz -c >$(distdir).tar.xz
+	$(am__post_remove_distdir)
+
+dist-tarZ: distdir
+	tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
+	$(am__post_remove_distdir)
+
+dist-shar: distdir
+	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+	$(am__post_remove_distdir)
+
+dist-zip: distdir
+	-rm -f $(distdir).zip
+	zip -rq $(distdir).zip $(distdir)
+	$(am__post_remove_distdir)
+
+dist dist-all:
+	$(MAKE) $(AM_MAKEFLAGS) $(DIST_TARGETS) am__post_remove_distdir='@:'
+	$(am__post_remove_distdir)
+
+# This target untars the dist file and tries a VPATH configuration.  Then
+# it guarantees that the distribution is self-contained by making another
+# tarfile.
+distcheck: dist
+	case '$(DIST_ARCHIVES)' in \
+	*.tar.gz*) \
+	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
+	*.tar.bz2*) \
+	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
+	*.tar.lz*) \
+	  lzip -dc $(distdir).tar.lz | $(am__untar) ;;\
+	*.tar.xz*) \
+	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
+	*.tar.Z*) \
+	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
+	*.shar.gz*) \
+	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
+	*.zip*) \
+	  unzip $(distdir).zip ;;\
+	esac
+	chmod -R a-w $(distdir)
+	chmod u+w $(distdir)
+	mkdir $(distdir)/_build $(distdir)/_inst
+	chmod a-w $(distdir)
+	test -d $(distdir)/_build || exit 0; \
+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+	  && am__cwd=`pwd` \
+	  && $(am__cd) $(distdir)/_build \
+	  && ../configure --srcdir=.. --prefix="$$dc_install_base" \
+	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) check \
+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
+	        distuninstallcheck \
+	  && chmod -R a-w "$$dc_install_base" \
+	  && ({ \
+	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
+	  && cd "$$am__cwd" \
+	  || exit 1
+	$(am__post_remove_distdir)
+	@(echo "$(distdir) archives ready for distribution: "; \
+	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
+distuninstallcheck:
+	@test -n '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: trying to run $@ with an empty' \
+	       '$$(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	$(am__cd) '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
+	        exit 1; } >&2
+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
+	fi
+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
+	       exit 1; } >&2
+check-am: all-am
+check: check-recursive
+all-am: Makefile
+installdirs: installdirs-recursive
+installdirs-am:
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-libtool \
+	distclean-local distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+	@$(NORMAL_INSTALL)
+	$(MAKE) $(AM_MAKEFLAGS) install-data-hook
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am: installcheck-local
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f $(am__CONFIG_DISTCLEAN_FILES)
+	-rm -rf $(top_srcdir)/autom4te.cache
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: $(am__recursive_targets) install-am install-data-am \
+	install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
+	am--refresh check check-am clean clean-cscope clean-generic \
+	clean-libtool cscope cscopelist-am ctags ctags-am dist \
+	dist-all dist-bzip2 dist-gzip dist-lzip dist-shar dist-tarZ \
+	dist-xz dist-zip distcheck distclean distclean-generic \
+	distclean-libtool distclean-local distclean-tags \
+	distcleancheck distdir distuninstallcheck dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-data-hook install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installcheck-local installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags tags-am uninstall uninstall-am
+
+
+export CCACHE_BASEDIR
+
+# igalic can't remember if this is make check or make test and neither should you.
+test: check
+
+installcheck-local:
+	$(DESTDIR)$(bindir)/traffic_server -R 1
+
+distclean-local:
+	-rm -f config.nice
+
+doxygen:
+	@cd doc && $(MAKE) $(AM_MAKEFLAGS) $@
+
+asf-dist: asf-distdir
+	tardir=$(distdir) && $(am__tar) --mtime=./configure.ac | bzip2 -9 -c >$(distdir).tar.bz2
+	@$(am__remove_distdir)
+
+asf-dist-rc: asf-distdir
+	tardir=$(distdir) && $(am__tar) --mtime=./configure.ac | bzip2 -9 -c >$(distdir)-rc$(RC).tar.bz2
+	@$(am__remove_distdir)
+
+asf-distdir:
+	@$(am__remove_distdir)
+	test -d .git && git clone . $(distdir)
+	cd $(distdir) && git submodule update --init && autoreconf -i
+	rm -rf -- $(distdir)/autom4te.cache $(distdir)/.git $(distdir)/.gitignore $(distdir)/ci
+
+asf-dist-sign: asf-dist
+	md5sum -b $(distdir).tar.bz2 >$(distdir).tar.bz2.md5
+	sha1sum -b $(distdir).tar.bz2 >$(distdir).tar.bz2.sha1
+	gpg --armor --output $(distdir).tar.bz2.asc  --detach-sig $(distdir).tar.bz2
+
+asf-dist-sign-rc: asf-dist-rc
+	md5sum -b $(distdir)-rc$(RC).tar.bz2 >$(distdir)-rc$(RC).tar.bz2.md5
+	sha1sum -b $(distdir)-rc$(RC).tar.bz2 >$(distdir)-rc$(RC).tar.bz2.sha1
+	gpg --armor --output $(distdir)-rc$(RC).tar.bz2.asc  --detach-sig $(distdir)-rc$(RC).tar.bz2
+
+release: asf-dist-sign
+	git tag -fs -m "Release $(VERSION)" $(VERSION)
+
+rel-candidate: asf-dist-sign-rc
+	git tag -fs -m "Release Candidate $(VERSION)-rc$(RC)" $(VERSION)-rc$(RC)
+
+examples: all
+	@cd example && $(MAKE) $(AM_MAKEFLAGS)
+
+install-examples: examples
+	@cd example && $(MAKE) $(AM_MAKEFLAGS) install pkglibdir=$(pkglibexecdir)
+
+install-data-hook:
+	@cd doc && $(MAKE) $(AM_MAKEFLAGS) install-man
+
+rat:
+	java -jar $(top_srcdir)/ci/apache-rat-0.11-SNAPSHOT.jar -E $(top_srcdir)/ci/rat-regex.txt  -d $(top_srcdir)
+
+submodules:
+	git submodule update --init
+
+help:
+	@echo 'all             default target for building the package' && \
+	echo 'check            run the test suite, if any' && \
+	echo 'clean            remove whatever make created' && \
+	echo 'distclean        remove whatever configure created' && \
+	echo 'dist             DEPRECATED: recreate source package' && \
+	echo 'examples         make examples' && \
+	echo 'asf-dist         recreate source package' && \
+	echo 'asf-dist-sign    recreate source package, with checksums and signature' && \
+	echo 'release          recreate a signed release source package and a signed git tag' && \
+	echo 'rel-candidate    recreate a signed relelease candidate source package and a signed git tag' && \
+	echo 'distcheck        verify dist by performing VPATH build and then distclean' && \
+	echo 'rat              produce a RAT licence compliance report of the source' && \
+	echo 'submodules       update the git submodules' && \
+	echo 'doxygen          generate doxygen docs in doc/html dir' && \
+	echo 'help             display this list of make targets' && \
+	echo 'install          install by copying the built files to system-wide dirs' && \
+	echo 'install-strip    same as install but then strips debugging symbols' && \
+	echo 'install-examples install examples by copying the built files to system-wide dirs'
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 00000000..3083af3a
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,63 @@
+Apache Traffic Server
+Copyright 2014 The Apache Software Foundation
+
+This product includes software developed at
+  - The Apache Software Foundation (http://www.apache.org/).
+  - Yahoo! Inc
+  - Network Geographics (http://network-geographics.com)
+  - OmniTI
+  - Comcast
+  - LinkedIn
+  - Mike Pall
+
+~~~
+
+Codebase originally donated by Yahoo:
+
+Copyright (C) 2009 Yahoo! Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+~~~
+
+lib/wccp and lib/tsconfig developed by Network Geographics.
+Copyright (C) 2010 Network Geographics, Inc.
+
+~~~
+
+WebSocket support developed by LinkedIn
+Copyright (C) 2014 LinkedIn
+
+~~~
+
+Cacheurl Plugin developed by OmniTI on behalf of Google.
+Copyright (C) 2011 Google Inc.
+
+~~~
+
+stale_while_revalidate Plugin developed by OmniTI on behalf of Oregon Health & Science University
+Copyright (C) 2012 Oregon Health & Science University
+
+~~~
+
+healthcheck Plugin developed by GoDaddy.
+Copyright (C) 2012 GoDaddy.
+
+~~~
+
+lib/atscppapi developed by LinkedIn
+Copyright (c) 2013 LinkedIn
+
+~~~
+
+remap_stats and url_sig plugins developed by Comcast.
+Copyright (C) 2014 Comcast
+
+~~~
+
+LuaJIT -- a Just-In-Time Compiler for Lua. http://luajit.org/
+Copyright (C) 2005-2014 Mike Pall. All rights reserved.
diff --git a/README b/README
new file mode 100644
index 00000000..363e7f47
--- /dev/null
+++ b/README
@@ -0,0 +1,283 @@
+Apache Traffic Server
+
+Traffic Server is a high-performance building block for cloud services.
+It's more than just a caching proxy server; it also has support for
+plugins to build large scale web applications.
+
+1. DIRECTORY STRUCTURE
+
+  traffic/ ............... top src dir
+  |-- ci/ ................ quality assurance and other CI tools and configs
+  |-- cmd/ ............... various command applications
+      |-- traffic_cop/ ... traffic_cop application
+      |-- traffic_line/ .. Command line utilities and API
+      |-- traffic_shell/ . traffic_shell application
+      |-- traffic_top/ ... traffic_top application
+  |-- contrib ............ various contributed auxiliary pieces
+  |-- doc/ ...............
+      |-- admin/ ......... Admin guide documentations
+      |-- dot/ ........... Graphviz source files for docs pictures
+      |-- man/ ........... Unix style man-pages
+      |-- plugins/ ....... Documentation for our core plugins
+      |-- sdk/ ........... Plugin developer guide
+  |-- example/ ........... example plugins
+  |-- install/ ........... installation programs and scripts
+  |-- iocore/ ............
+      |-- aio/ ........... Asynchronous I/O core
+      |-- cache/ ......... Disk and RAM cache
+      |-- cluster/ ....... Cache and configuration clustering
+      |-- dns/ ........... DNS (asynchronous)
+      |-- hostdb/ ........ Internal DNS cache
+      |-- net/ ........... Network
+  |-- lib/ ...............
+      |-- cpp11api ....... C++ '11 wrapper for plugin developers
+      |-- records/ ....... library for config files
+      |-- perl/ .......... Perl libraries for e.g. mgmt access and configurations
+      |-- ts/ ............ Base / core library
+      |-- tsconfig/....... New config parser and library (experimental)
+      |-- wccp/ .......... WCCP implementation
+  |-- m4/ ................ custom macros for configure.ac
+  |-- mgmt/ .............. Management server and tools (including traffic_manager)
+  |-- plugins/ ........... Core plugins (stable and experiemental)
+  |-- proxy/ ............. HTTP proxy logic
+      |-- api/ ........... Plugin API includes
+      |-- config/ ........ Configurations
+      |-- congest/ ....... Congestion control
+      |-- hdrs/ .......... Headers parsing and management
+      |-- http/ .......... The actual HTTP protocol implementation
+      |-- logging/ ....... Flexible logging
+  |-- README ............. intro, links, build info
+  |-- README-EC2 ......... info on EC2 support
+  |-- REVIEWERS .......... (incomplete) list of areas with committer interest
+  |-- LICENSE ............ full license text
+  `-- NOTICE ............. copyright notices
+
+2. REQUIREMENTS
+
+  This section outlines build requirements for different OS
+  distributions. This may be out of date compared to the on-line
+  requirements at
+
+  <https://cwiki.apache.org/confluence/display/TS/Building>.
+
+  Fedora 12-19 / CentOS / RHEL:
+    autoconf
+    automake
+    pkgconfig
+    libtool
+    perl-ExtUtils-MakeMaker
+    gcc-c++
+    glibc-devel
+    openssl-devel
+    tcl-devel
+    expat-devel
+    pcre
+    pcre-devel
+    libcap-devel (optional, highly recommended)
+    flex (optional, needed for e.g. WCCP)
+    hwloc-devel (optional, highly recommended)
+    lua-devel (optional)
+
+  Fedora 8 EC2 (Kernel: 2.6.21.7-2.ec2.v1.2.fc8xen):
+    FC8 on EC2 requires unique configure declarations, please see that section
+    below.
+
+    NOTE: Alternately you may use the install scripts in 'contrib' which
+          automate this or use the pre-built public Fedora Core 8 EC2 AMI
+          with ATS installed. Both of which are HIGHLY RECOMMENDED.
+          See 'README-EC2' for further details.
+
+    autoconf
+    automake
+    pkgconfig
+    libtool
+    perl-ExtUtils-MakeMaker
+    gcc-c++
+    glibc-devel
+    openssl-devel
+    tcl-devel
+    expat-devel
+    pcre
+
+  Ubuntu 8.* - 13.*:
+    autoconf
+    automake
+    pkg-config
+    libtool
+    libmodule-install-perl
+    g++
+    libssl-dev
+    tcl-dev
+    expat
+    libexpat-dev
+    libpcre3-dev
+    libcap-dev (optional, highly recommended)
+    flex (optional, required for e.g. WCCP)
+    libhwloc-dev (optional, highly recommended)
+    liblua5.1-dev or libluajit-5.1-dev (optional)
+    libncurses5-dev (optional, required for e.g.: tstop)
+    libcurl4-openssl-dev (optional, required for e.g.: tstop)
+
+  Ubuntu EC2 9.10:
+    NOTE: Alternately you may use the install scripts in 'contrib' which
+          automate this or use the pre-built public Ubuntu EC2 AMI with
+          ATS installed. Both of which are HIGHLY RECOMMENDED.
+          See 'README-EC2' for further details.
+
+    Install these packages:
+    autoconf
+    automake
+    pkg-config
+    libtool
+    libmodule-install-perl
+    g++
+    libssl-dev
+    tcl-dev
+    expat
+    libexpat-dev
+    libpcre3-dev
+    flex (optional)
+    libhwloc-dev (optional, highly recommended)
+    liblua-dev (optional)
+    libncurses5-dev (optional, required for e.g.: tstop)
+    libcurl3-openssl-dev (optional, required for e.g.: tstop)
+
+  FreeBSD 7.2,8.0,9.0,9.1
+    GCC 4.2.1 compiler suite or clang. You can install the following
+	packages either from ports or via pkg_add or pkgng:
+    devel/gmake
+    devel/autoconf
+    devel/automake
+    devel/pkgconf
+    devel/libtool
+    lang/tcl85
+    textproc/expat (or expat2)
+    security/openssl
+    devel/pcre
+    textproc/flex (optional, install newer version from ports, fix PATH)
+    devel/hwloc (optional, highly recommended)
+    lang/lua (optional, on x64 don't use LuaJIT!)
+
+  OmniOS:
+    developer/gcc46
+    developer/build/gnu-make
+    developer/build/autoconf
+    developer/build/automake-111
+    developer/build/libtool
+    omniti/runtime/tcl-8
+    library/expat
+    library/security/openssl
+    library/pcre
+
+  OSX 10.5:
+    GCC 4.2.4 compiler suite (ports collection)
+    autoconf
+    automake
+    pkgconfig
+    libtool
+    tcl
+    expat
+    openssl
+    pcre
+
+3. Building from distribution
+
+You can download the latest source code from the official Apache Traffic
+Server site:
+
+       http://trafficserver.apache.org/downloads
+
+(or via the URL shortener: http://s.apache.org/uG). Once downloaded,
+follow the instructions:
+
+   tar xf trafficserver-2.1.8-unstable.tar.bz2
+   cd trafficserver-2.1.8-unstable
+  ./configure            # configure the build environment to create Makefiles
+  make                   # execute the compile
+
+This will build with a destination prefix of /usr/local. You can finish
+the installation with
+
+  sudo make install
+
+4. BUILDING FROM GIT REPO
+
+  mkdir -p ~/dev         # make yourself a development dir
+  cd ~/dev               # enter your development dir
+  git clone ...          # get the source code from ASF Git repo
+  cd trafficserver       # enter the checkout dir
+  autoreconf -if         # generate the configure script and Makefile.in files
+  ./configure            # configure the build environment to create Makefiles
+  make                   # execute the compile
+
+4b. Instructions for building on EC2
+    NOTE: Alternately you may use the scripts under 'contrib' which will
+          automate the install for trafficserver under EC2 which is
+          HIGHLY RECOMMENDED. See 'README-EC2' for further details.
+
+   # As root do the following when using Ubuntu
+   mkdir -p /mnt          #EC2 Storage Mount, where storage is located
+   cd /mnt
+   git clone ...          # get the source code from ASF Git repo
+   cd trafficserver       # enter the checkout dir
+   autoreconf -i --force  # generate the configure script and Makefile.in files
+   ./configure
+   make
+
+   # As root do the following when using Fedora Core 8 kernel
+   mkdir -p /mnt          #EC2 Storage Mount, where storage is located
+   cd /mnt
+   git clone ...          # get the source code from ASF Git repo
+   cd trafficserver       # enter the checkout dir
+   autoreconf -i --force  # generate the configure script and Makefile.in files
+   ./configure --disable-eventfd
+   make
+
+4c. Instructions for building on FreeBSD
+
+   The only difference is how to run configure and make:
+
+   MAKE=gmake ./configure # make sure that gmake is the make we use
+   gmake
+
+5. INSTALLATION
+
+  DEFAULT DIR                        CONTENTS
+  /usr/local/var/log/trafficserver   log files created at runtime
+  /usr/local/var/trafficserver       runtime files
+  /usr/local/etc/trafficserver       configuration files
+  /usr/local/bin                     executable binaries
+  /usr/local/libexec/trafficserver   plugins
+
+6. CRYPTO NOTICE
+
+  This distribution includes cryptographic software.  The country in
+  which you currently reside may have restrictions on the import,
+  possession, use, and/or re-export to another country, of
+  encryption software.  BEFORE using any encryption software, please
+  check your country's laws, regulations and policies concerning the
+  import, possession, or use, and re-export of encryption software, to
+  see if this is permitted.  See <http://www.wassenaar.org/> for more
+  information.
+
+  The U.S. Government Department of Commerce, Bureau of Industry and
+  Security (BIS), has classified this software as Export Commodity
+  Control Number (ECCN) 5D002.C.1, which includes information security
+  software using or performing cryptographic functions with asymmetric
+  algorithms.  The form and manner of this Apache Software Foundation
+  distribution makes it eligible for export under the License Exception
+  ENC Technology Software Unrestricted (TSU) exception (see the BIS
+  Export Administration Regulations, Section 740.13) for both object
+  code and source code.
+
+  The following provides more details on the included cryptographic
+  software:
+
+    The functionality of OpenSSL <http://www.openssl.org/> is
+    utilized in parts of the software.
+
+7. ADDITIONAL INFO
+
+  Web page: http://trafficserver.apache.org/
+  Wiki: http://cwiki.apache.org/confluence/display/TS/
+  User mailing list: users@trafficserver.apache.org
diff --git a/README-EC2 b/README-EC2
new file mode 100644
index 00000000..52c84491
--- /dev/null
+++ b/README-EC2
@@ -0,0 +1,134 @@
+Apache TrafficServer AMIs for EC2
+Author: Jason Giedymin
+
+--TOC--
+1.0 Ubuntu Based Images
+1.1 Ubuntu AMI Details
+1.2 What is installed?
+
+2.0 Fedora Based Images
+2.1 Fedora AMI Details
+2.2 What is installed?
+
+3.0 The ATS Installation
+3.1 Additional Update Functionality
+3.2 User customized settings
+3.3 Script Breakout
+
+4.0 FAQ
+4.1 I use EC2 and I'm still confused!?
+4.2 What is EC2?
+4.3 I don't use EC2 or have an AWS account, can I still use these scripts on
+    my Virtual Machine or dedicated Ubuntu/Fedora Linux Box?
+4.4 How do I contact you for help?
+4.5 Will these AMIs be updated in the future?
+
+-------
+
+1.0 Ubuntu Based Images
+  This is the prefered image as Ubuntu is kept up to date by Canonical.
+
+1.1 Ubuntu AMI Details
+  Name: Amuxbit-Karmic-ApacheTrafficServer-AMI
+  x86_64 AMI: ami-ada24cc4, kernel: aki-fd15f694, Ramdisk: ari-7b739e12
+    i386 AMI: ami-5ba34d32, kernel: aki-5f15f636, Ramdisk: ari-d5709dbc
+
+1.2 What is installed?
+  All packages other than Apache TrafficServer are from the ec2 ubuntu
+  package repositories.  All software installed should be open source.
+    * Official Canonical Ubuntu Karmic 9.10 EC2 AMI
+    * Dist Upgraded as of 4/1/2010
+    * Apache TrafficServer - Trunk (can be updated at any time)
+    * openjdk-6-jre (for ec2 tools)
+    * ruby (for ec2 tools)
+    * libopenssl-ruby (for ec2 tools)
+    * Apache2 (httpd, used for testing)
+
+2.0 Fedora Based Images
+
+2.1 Fedora AMI Details
+  Name: Amuxbit-Fedora8-ApacheTrafficServer-AMI
+  x86_64 AMI: ami-c3a04eaa, kernel: aki-a3d737ca, Ramdisk: ari-7cb95a15
+    i386 AMI: ami-53a04e3a, kernel: aki-6eaa4907, Ramdisk: ari-42b95a2b
+
+2.2 What is installed?
+  All packages other than Apache TrafficServer are from the ec2 fedora
+  package repositories.  All software installed should be open source.
+    * Official Fedora Core 8 EC2 AMI
+    * Dist Upgraded as of 4/1/2010
+    * Apache TrafficServer - Trunk (can be updated at any time)
+    * java-1.7.0-icedtea (openjdk for ec2 tools)
+    * openssl-devel (for ec2 tools)
+    * ruby (for ec2 tools)
+    * httpd (Apache web server, used for testing)
+
+3.0 The ATS Installation
+  Apache Traffic Server is installed in: '/ats'.
+  The installation script used to install ATS is contained within the contrib
+  directory, part of the ATS source distribution.  The script is included
+  within the '/ats' folder for actual use.
+
+3.1 Additional Update Functionality
+  The EC2 images provided contain additional scripts to maintain freshness
+  of the install scripts.  At one time the scripts provided 'auto-heal'
+  functionality but that has been removed.  Running /ats/install_update.sh
+  will keep the ATS installation up to date.
+
+3.2 User customized settings
+  Any customized settings will be lost if the update/install scripts are run.
+  Upon executing the install/update scripts you may copy your files back into
+  the config directory.  Users should periodically backup your config files,
+  and keep abrest of any config changes as new versions of ATS are released.
+  The latter reason being why I did not auto-copy configs.  While I've tried
+  to lessen as much pain for any Sys Admins, ultimately you must take charge
+  of these critical settings as updates will and do happen frequently to the
+  ATS source.
+
+  An example script which alters settings can be found in
+    '/ats/contrib/set_trafficserver.sh'
+  This has been used on the AMIs already provided.
+
+3.3 Script Breakout
+
+ ats
+ |-- contrib
+     | -- install_trafficserver.sh : installs ATS. Try not to run this directly.
+     | -- set_trafficserver.sh : sample config/testing/benchmark base script.
+            You may want to learn from/use this script.
+     ` -- update_scripts.sh : used to update install_trafficserver.sh,
+            and set_trafficserver.sh from trunk.
+ |-- install_update.sh : the 'easy button' script to re-install ATS.
+       Executes update_scripts.sh, then install_trafficserver.sh.
+       This is what you want to run.
+ `-- readme : extra information.
+
+4.0 FAQ
+
+4.1 I use EC2 and I'm still confused!?
+  With your EC2 account, refer to one of the AMIs listed in this doc
+  (Ubuntu/Fedora).  Image architectures provided are i386, and x86_64.
+  64bit is offered for those who need to spin up a big high powered instances.
+  Once running (and it may take a while) you will find yourself with a Linux
+  distribution with Apache Traffic Server already installed.  If you'd like
+  to re-install ATS against trunk, run '/ats/install_update.sh'.  Note that
+  you will have to backup and/or optimize your configuration (see 3.2).
+  To further setup ATS see the TrafficServer wiki @
+
+    http://cwiki.apache.org/confluence/display/TS/
+
+4.2 What is EC2?
+  See http://aws.amazon.com/
+
+4.3 I don't use EC2 or have an AWS account, can I still use these scripts on
+    my Virtual Machine or dedicated Ubuntu/Fedora Linux Box?
+  Absolutely!  The /contrib scripts are actually meant for Ubuntu/Linux
+  Installs first, EC2 second.  You can find them on the ATS SVN/Git
+  repository under '/contrib'.
+
+4.4 How do I contact you for help?
+  For mailing lists, and IRC information, visit our web page at
+
+    http://trafficserver.apache.org/
+
+4.5 Will these AMIs be updated in the future?
+  Absolutely!
diff --git a/REVIEWERS b/REVIEWERS
new file mode 100644
index 00000000..15d89aca
--- /dev/null
+++ b/REVIEWERS
@@ -0,0 +1,117 @@
+These are Committers who have expressed general interest in the listed parts
+of the Traffic Server code to the extent that they will review or at least read
+over changes in those parts and should review major changes.
+
+All changes should have a jira ticket:
+        https://issues.apache.org/jira/browse/TS
+
+Big changes should be discussed on one or more of:
+        mailing list: dev@trafficserver.apache.org
+        IRC: #traffic-server irc.freenode.net
+
+Major or controversial changes should be have wiki page and may require a vote:
+        http://cwiki.apache.org/confluence/display/TS/Traffic+Server
+
+Committers: add modules as needed and any qualifications after your e-mail address
+====================================================================================
+
+all/general interest
+        jplevyak@apache.org
+        bcall@apache.org
+	briang@apache.org
+        mturk@apache.org
+        zwoop@apache.org
+        jim@apache.org
+        ericb@apache.org
+	manjesh@apache.org
+lib/ts
+        jplevyak@apache.org
+        zwoop@apache.org
+        bcall@apache.org
+        georgep@apache.org
+        ericb@apache.org
+lib/records
+        bcall@apache.org
+        georgep@apache.org
+	      zwoop@apache.org
+Event System/Buffering/VIO/VConnection
+        jplevyak@apache.org
+        bcall@apache.org
+	briang@apache.org
+        georgep@apache.org
+Network I/O
+        jplevyak@apache.org - not including SSL or UDP except where it intersects the other code
+        bcall@apache.org
+        georgep@apache.org
+	briang@apache.org
+        jim@apache.org
+	zwoop@apache.org
+Raw Cache and AIO
+        jplevyak@apache.org
+        bcall@apache.org
+        georgep@apache.org
+HTTP Caching
+        bcall@apache.org
+        jim@apache.org
+	      zwoop@apache.org
+Block-Cache
+Clustering
+        jplevyak@apache.org
+        georgep@apache.org
+        jim@apache.org
+	zym@apache.org
+DNS/HostDB
+        jplevyak@apache.org
+        zwoop@apache.org
+        bcall@apache.org
+        georgep@apache.org
+        ericb@apache.org
+FastIO
+Docs
+	      dianes@apache.org
+Examples/Plugins
+        zwoop@apache.org
+        bcall@apache.org
+	briang@apache.org
+        ericb@apache.org
+HDRs
+        bcall@apache.org
+        zwoop@apache.org
+        briang@apache.org
+HTTP
+        bcall@apache.org
+        zwoop@apache.org
+	briang@apache.org
+        jim@apache.org
+        ericb@apache.org
+Remap
+        zwoop@apache.org
+        bcall@apache.org
+        jim@apache.org
+        ericb@apache.org
+API
+        zwoop@apache.org
+	briang@apache.org
+        bcall@apache.org
+        georgep@apache.org
+        ericb@apache.org
+Config
+        zwoop@apache.org
+        bcall@apache.org
+        georgep@apache.org
+Congest
+Logging
+        georgep@apache.org
+MGMT
+        georgep@apache.org
+Stats
+        bcall@apache.org
+        georgep@apache.org
+	briang@apache.org
+	zwoop@apache.org
+Build System
+        zwoop@apache.org
+        bcall@apache.org
+        georgep@apache.org
+        mturk@apache.org
+        jim@apache.org
diff --git a/STATUS b/STATUS
new file mode 100644
index 00000000..aaad22e9
--- /dev/null
+++ b/STATUS
@@ -0,0 +1,65 @@
+Traffic Server 4.2 STATUS:                                              -*-text-*-
+Last modified at [$Date$]
+
+The current version of this file can be found at:
+
+  * http://git-wip-us.apache.org/repos/asf?p=trafficserver.git;a=blob;f=STATUS;hb=master
+
+
+Release history:
+
+    4.1.2           : Released on Dec 17th, 2013
+
+    4.0.2           : Released on Oct 14th, 2013
+    4.0.1           : Released on Aug 30th, 2013
+
+    3.3.5           : Released on Aug 16th, 2013
+    3.3.4           : Released on June 10th, 2013
+    3.3.2           : Released on April 18th, 2013
+    3.3.1           : Released on March 12th, 2013
+    3.3.0           : Released on September 7th, 2012
+
+    3.2.4           : Released on January 20, 2013
+    3.2.0           : Released on June 20, 2012
+    3.0.5           : Released on June 06, 2012
+    3.0.4           : Released on March 21, 2012
+    3.0.3           : Released on February 13, 201
+    3.0.2           : Released on December 07, 2011
+    3.0.1           : Released on July 19, 2011
+    3.0.0           : Released on June 14, 2011
+    2.0.1           : Released on August 31, 2010
+    2.0.0           : Released on April 28, 2010
+
+
+Contributors looking for a mission:
+
+  * Just do an egrep on "TODO" or "XXX" in the source.
+
+  * Review the bug database at: https://issues.apache.org/jira/browse/TS
+
+      - Download, test and review patches attached to open bugs
+
+  * Open bugs in the bug database.
+
+
+UPCOMING WORK:
+
+A list of all bugs open for the next release can be found at
+
+  http://s.apache.org/ats-next
+
+
+RELEASE PROCESS
+
+The Traffic Server release process and support cycles are documented at
+
+    https://cwiki.apache.org/confluence/display/TS/ReleaseProcess
+
+and
+
+    https://cwiki.apache.org/confluence/display/TS/New+Release+Processes
+
+
+Current status of all build systems is available at
+
+    http://ci.trafficserver.apache.org/
diff --git a/Vagrantfile b/Vagrantfile
new file mode 100644
index 00000000..594ccf99
--- /dev/null
+++ b/Vagrantfile
@@ -0,0 +1,142 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+$network = {
+  # The VM host is 192.168.100.1
+  "raring64"  => "192.168.100.11",
+  "quantal64" => "192.168.100.12",
+  "precise64" => "192.168.100.13",
+  "lucid64"   => "192.168.100.14",
+  "centos63"  => "192.168.100.15",
+  "freebsd"   => "192.168.100.16",
+  "omnios"    => "192.168.100.17",
+
+  "raring32"  => "192.168.200.11",
+  "quantal32" => "192.168.200.12",
+  "precise32" => "192.168.200.13",
+  "lucid32"   => "192.168.200.14",
+
+  "fedora18"  => "192.168.200.15",
+  "centos59"  => "192.168.200.16",
+  "centos64"  => "192.168.200.17",
+  "debian7"   => "192.168.200.18",
+  "sles11"    => "192.168.200.19",
+  "oel63"     => "192.168.200.20",
+
+  "saucy64"   => "192.168.100.21",
+  "saucy32"   => "192.168.100.22",
+  "trusty64"  => "192.168.100.23",
+  "trusty32"  => "192.168.100.24",
+}
+
+$vmspec = {
+  "lucid64" => [ # Ubuntu 10.04 LTS (Lucid Lynx)
+    "http://files.vagrantup.com/lucid64.box", "debian.pp"
+  ],
+  "fedora18" => [
+    "http://puppet-vagrant-boxes.puppetlabs.com/fedora-18-x64-vbox4210.box", "redhat.pp"
+  ],
+  "centos63" => [
+    "https://dl.dropbox.com/u/7225008/Vagrant/CentOS-6.3-x86_64-minimal.box", "redhat.pp"
+  ],
+  "centos59" => [
+    "http://puppet-vagrant-boxes.puppetlabs.com/centos-59-x64-vbox4210.box", "redhat.pp",
+  ],
+  "centos64" => [
+    "http://puppet-vagrant-boxes.puppetlabs.com/centos-64-x64-vbox4210.box", "redhat.pp",
+  ],
+  "debian7" => [
+    "http://puppet-vagrant-boxes.puppetlabs.com/debian-70rc1-x64-vbox4210.box", "debian.pp",
+  ],
+  "sles11" => [
+    "http://puppet-vagrant-boxes.puppetlabs.com/sles-11sp1-x64-vbox4210.box", "redhat.pp",
+  ],
+  "oel63" => [
+    "http://ats.boot.org/vagrant/vagrant-oel63-x64.box", "redhat.pp",
+  ],
+}
+
+Vagrant.configure("2") do |config|
+
+  # Default all VMs to 1GB.
+  config.vm.provider :virtualbox do |v|
+    v.customize ["modifyvm", :id, "--memory", 1024]
+  end
+
+  # Mount the Traffic Server source code in a fixed location everywhere. Use NFS
+  # because it's faster and vboxfs doesn't support links.
+  config.vm.synced_folder ".", "/opt/src/trafficserver.git", :nfs => true
+
+  # Always forward SSH keys to VMs.
+  config.ssh.forward_agent = true
+
+  # Ubuntu 14.04 (Trusty Tahr)
+  # Ubuntu 13.04 (Raring Ringtail)
+  # Ubuntu 12.10 (Quantal Quetzal)
+  # Ubuntu 12.04 LTS (Precise Pangolin)
+  ["i386", "amd64"].each { |arch|
+    ['saucy', 'raring', 'quantal', 'precise', 'trusty' ].each { |release|
+      n = { "i386" => "32", "amd64" => "64" }[arch]
+      config.vm.define "#{release}#{n}" do | config |
+        config.vm.box = "#{release}#{n}"
+        config.vm.box_url = "http://cloud-images.ubuntu.com/vagrant/#{release}/current/#{release}-server-cloudimg-#{arch}-vagrant-disk1.box"
+        config.vm.network :private_network, ip: $network["#{release}#{n}"]
+        config.vm.provision :puppet do |puppet|
+          puppet.manifests_path = "contrib/manifests"
+          puppet.manifest_file = "debian.pp"
+        end
+      end
+    }
+  }
+
+  config.vm.define :freebsd do | config |
+    config.vm.box = "freebsd"
+    config.vm.synced_folder ".", "/opt/src/trafficserver.git", :nfs => false
+    # Force the FreeBSD VM to use a network driver that actually works.
+    config.vm.provider :virtualbox do |v|
+      v.customize ["modifyvm", :id, "--nictype1", "82543GC"]
+      v.customize ["modifyvm", :id, "--nictype2", "82543GC"]
+    end
+    config.vm.network :private_network, ip: $network["freebsd"]
+    config.vm.box_url = "https://github.com/downloads/xironix/freebsd-vagrant/freebsd_amd64_zfs.box"
+  end
+
+  # Current OmniOS release, see http://omnios.omniti.com/wiki.php/Installation
+  config.vm.define :omnios do | config |
+    config.vm.box = "omnios"
+    config.vm.guest = :solaris
+    config.vm.network :private_network, ip: $network["omnios"]
+    config.vm.synced_folder ".", "/opt/src/trafficserver.git", :nfs => false
+    config.vm.box_url = "http://omnios.omniti.com/media/omnios-latest.box"
+    config.vm.provision :shell, :path => "contrib/manifests/omnios.sh"
+  end
+
+  $vmspec.each do | name, spec |
+    config.vm.define name do | config |
+      config.vm.box = name
+      config.vm.box_url = spec[0]
+      config.vm.network :private_network, ip: $network[name]
+      config.vm.provision :puppet do |puppet|
+        puppet.manifests_path = "contrib/manifests"
+        puppet.manifest_file = spec[1]
+      end
+    end
+  end
+
+end
+
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644
index 00000000..5a3b4e15
--- /dev/null
+++ b/aclocal.m4
@@ -0,0 +1,1428 @@
+# generated automatically by aclocal 1.13.4 -*- Autoconf -*-
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+m4_ifndef([AC_AUTOCONF_VERSION],
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+If you have problems, you may need to regenerate the build system entirely.
+To do so, use the procedure documented by the package, typically 'autoreconf'.])])
+
+# Copyright (C) 2002-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_AUTOMAKE_VERSION(VERSION)
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+# Automake X.Y traces this macro to ensure aclocal.m4 has been
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+# AM_SET_CURRENT_AUTOMAKE_VERSION
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+_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
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+# Copyright (C) 2011-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
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+# AM_CONDITIONAL                                            -*- Autoconf -*-
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+# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+#
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+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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+        am_cv_$1_dependencies_compiler_type=$depmode
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+  cd ..
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+# Do all the work for Automake.                             -*- Autoconf -*-
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+# arguments mandatory, and then we can depend on a new Autoconf
+# release and drop the old call support.
+AC_DEFUN([AM_INIT_AUTOMAKE],
+[AC_PREREQ([2.65])dnl
+dnl Autoconf wants to disallow AM_ names.  We explicitly allow
+dnl the ones we care about.
+m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
+AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
+AC_REQUIRE([AC_PROG_INSTALL])dnl
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+AC_SUBST([CYGPATH_W])
+
+# Define the identity of the package.
+dnl Distinguish between old-style and new-style calls.
+m4_ifval([$2],
+[AC_DIAGNOSE([obsolete],
+             [$0: two- and three-arguments forms are deprecated.])
+m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+ AC_SUBST([PACKAGE], [$1])dnl
+ AC_SUBST([VERSION], [$2])],
+[_AM_SET_OPTIONS([$1])dnl
+dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
+m4_if(
+  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
+  [ok:ok],,
+  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
+ AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
+ AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
+AM_MISSING_PROG([AUTOCONF], [autoconf])
+AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
+AM_MISSING_PROG([AUTOHEADER], [autoheader])
+AM_MISSING_PROG([MAKEINFO], [makeinfo])
+AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
+	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
+			     [_AM_PROG_TAR([v7])])])
+_AM_IF_OPTION([no-dependencies],,
+[AC_PROVIDE_IFELSE([AC_PROG_CC],
+		  [_AM_DEPENDENCIES([CC])],
+		  [m4_define([AC_PROG_CC],
+			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_CXX],
+		  [_AM_DEPENDENCIES([CXX])],
+		  [m4_define([AC_PROG_CXX],
+			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJC],
+		  [_AM_DEPENDENCIES([OBJC])],
+		  [m4_define([AC_PROG_OBJC],
+			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
+		  [_AM_DEPENDENCIES([OBJCXX])],
+		  [m4_define([AC_PROG_OBJCXX],
+			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
+])
+AC_REQUIRE([AM_SILENT_RULES])dnl
+dnl The testsuite driver may need to know about EXEEXT, so add the
+dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
+dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
+AC_CONFIG_COMMANDS_PRE(dnl
+[m4_provide_if([_AM_COMPILER_EXEEXT],
+  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
+])
+
+dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
+dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
+dnl mangled by Autoconf and run in a shell conditional statement.
+m4_define([_AC_COMPILER_EXEEXT],
+m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
+
+
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated.  The stamp files are numbered to have different names.
+
+# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
+# loop where config.status creates the headers, so we can generate
+# our stamp files there.
+AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
+[# Compute $1's index in $config_headers.
+_am_arg=$1
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+AC_SUBST([install_sh])])
+
+# Copyright (C) 2003-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Check whether the underlying file-system supports filenames
+# with a leading dot.  For instance MS-DOS doesn't.
+AC_DEFUN([AM_SET_LEADING_DOT],
+[rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAKE_INCLUDE()
+# -----------------
+# Check to see how make treats includes.
+AC_DEFUN([AM_MAKE_INCLUDE],
+[am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+AC_MSG_CHECKING([for style of include used by $am_make])
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from 'make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+AC_SUBST([am__include])
+AC_SUBST([am__quote])
+AC_MSG_RESULT([$_am_result])
+rm -f confinc confmf
+])
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_CC_C_O
+# --------------
+# Like AC_PROG_CC_C_O, but changed for automake.
+AC_DEFUN([AM_PROG_CC_C_O],
+[AC_REQUIRE([AC_PROG_CC_C_O])dnl
+AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([compile])dnl
+# FIXME: we rely on the cache variable name because
+# there is no other way.
+set dummy $CC
+am_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']`
+eval am_t=\$ac_cv_prog_cc_${am_cc}_c_o
+if test "$am_t" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+dnl Make sure AC_PROG_CC is never called again, or it will override our
+dnl setting of CC.
+m4_define([AC_PROG_CC],
+          [m4_fatal([AC_PROG_CC cannot be called after AM_PROG_CC_C_O])])
+])
+
+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
+
+# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it is modern enough.
+# If it is, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([missing])dnl
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  AC_MSG_WARN(['missing' script is too old or missing])
+fi
+])
+
+# Helper functions for option handling.                     -*- Autoconf -*-
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_MANGLE_OPTION(NAME)
+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# --------------------
+# Set option NAME.  Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+
+# AM_PATH_PYTHON([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# ---------------------------------------------------------------------------
+# Adds support for distributing Python modules and packages.  To
+# install modules, copy them to $(pythondir), using the python_PYTHON
+# automake variable.  To install a package with the same name as the
+# automake package, install to $(pkgpythondir), or use the
+# pkgpython_PYTHON automake variable.
+#
+# The variables $(pyexecdir) and $(pkgpyexecdir) are provided as
+# locations to install python extension modules (shared libraries).
+# Another macro is required to find the appropriate flags to compile
+# extension modules.
+#
+# If your package is configured with a different prefix to python,
+# users will have to add the install directory to the PYTHONPATH
+# environment variable, or create a .pth file (see the python
+# documentation for details).
+#
+# If the MINIMUM-VERSION argument is passed, AM_PATH_PYTHON will
+# cause an error if the version of python installed on the system
+# doesn't meet the requirement.  MINIMUM-VERSION should consist of
+# numbers and dots only.
+AC_DEFUN([AM_PATH_PYTHON],
+ [
+  dnl Find a Python interpreter.  Python versions prior to 2.0 are not
+  dnl supported. (2.0 was released on October 16, 2000).
+  m4_define_default([_AM_PYTHON_INTERPRETER_LIST],
+[python python2 python3 python3.3 python3.2 python3.1 python3.0 python2.7 dnl
+ python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0])
+
+  AC_ARG_VAR([PYTHON], [the Python interpreter])
+
+  m4_if([$1],[],[
+    dnl No version check is needed.
+    # Find any Python interpreter.
+    if test -z "$PYTHON"; then
+      AC_PATH_PROGS([PYTHON], _AM_PYTHON_INTERPRETER_LIST, :)
+    fi
+    am_display_PYTHON=python
+  ], [
+    dnl A version check is needed.
+    if test -n "$PYTHON"; then
+      # If the user set $PYTHON, use it and don't search something else.
+      AC_MSG_CHECKING([whether $PYTHON version is >= $1])
+      AM_PYTHON_CHECK_VERSION([$PYTHON], [$1],
+			      [AC_MSG_RESULT([yes])],
+			      [AC_MSG_RESULT([no])
+			       AC_MSG_ERROR([Python interpreter is too old])])
+      am_display_PYTHON=$PYTHON
+    else
+      # Otherwise, try each interpreter until we find one that satisfies
+      # VERSION.
+      AC_CACHE_CHECK([for a Python interpreter with version >= $1],
+	[am_cv_pathless_PYTHON],[
+	for am_cv_pathless_PYTHON in _AM_PYTHON_INTERPRETER_LIST none; do
+	  test "$am_cv_pathless_PYTHON" = none && break
+	  AM_PYTHON_CHECK_VERSION([$am_cv_pathless_PYTHON], [$1], [break])
+	done])
+      # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
+      if test "$am_cv_pathless_PYTHON" = none; then
+	PYTHON=:
+      else
+        AC_PATH_PROG([PYTHON], [$am_cv_pathless_PYTHON])
+      fi
+      am_display_PYTHON=$am_cv_pathless_PYTHON
+    fi
+  ])
+
+  if test "$PYTHON" = :; then
+  dnl Run any user-specified action, or abort.
+    m4_default([$3], [AC_MSG_ERROR([no suitable Python interpreter found])])
+  else
+
+  dnl Query Python for its version number.  Getting [:3] seems to be
+  dnl the best way to do this; it's what "site.py" does in the standard
+  dnl library.
+
+  AC_CACHE_CHECK([for $am_display_PYTHON version], [am_cv_python_version],
+    [am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[[:3]])"`])
+  AC_SUBST([PYTHON_VERSION], [$am_cv_python_version])
+
+  dnl Use the values of $prefix and $exec_prefix for the corresponding
+  dnl values of PYTHON_PREFIX and PYTHON_EXEC_PREFIX.  These are made
+  dnl distinct variables so they can be overridden if need be.  However,
+  dnl general consensus is that you shouldn't need this ability.
+
+  AC_SUBST([PYTHON_PREFIX], ['${prefix}'])
+  AC_SUBST([PYTHON_EXEC_PREFIX], ['${exec_prefix}'])
+
+  dnl At times (like when building shared libraries) you may want
+  dnl to know which OS platform Python thinks this is.
+
+  AC_CACHE_CHECK([for $am_display_PYTHON platform], [am_cv_python_platform],
+    [am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`])
+  AC_SUBST([PYTHON_PLATFORM], [$am_cv_python_platform])
+
+  # Just factor out some code duplication.
+  am_python_setup_sysconfig="\
+import sys
+# Prefer sysconfig over distutils.sysconfig, for better compatibility
+# with python 3.x.  See automake bug#10227.
+try:
+    import sysconfig
+except ImportError:
+    can_use_sysconfig = 0
+else:
+    can_use_sysconfig = 1
+# Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
+# <https://github.com/pypa/virtualenv/issues/118>
+try:
+    from platform import python_implementation
+    if python_implementation() == 'CPython' and sys.version[[:3]] == '2.7':
+        can_use_sysconfig = 0
+except ImportError:
+    pass"
+
+  dnl Set up 4 directories:
+
+  dnl pythondir -- where to install python scripts.  This is the
+  dnl   site-packages directory, not the python standard library
+  dnl   directory like in previous automake betas.  This behavior
+  dnl   is more consistent with lispdir.m4 for example.
+  dnl Query distutils for this directory.
+  AC_CACHE_CHECK([for $am_display_PYTHON script directory],
+    [am_cv_python_pythondir],
+    [if test "x$prefix" = xNONE
+     then
+       am_py_prefix=$ac_default_prefix
+     else
+       am_py_prefix=$prefix
+     fi
+     am_cv_python_pythondir=`$PYTHON -c "
+$am_python_setup_sysconfig
+if can_use_sysconfig:
+    sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
+else:
+    from distutils import sysconfig
+    sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
+sys.stdout.write(sitedir)"`
+     case $am_cv_python_pythondir in
+     $am_py_prefix*)
+       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+       ;;
+     *)
+       case $am_py_prefix in
+         /usr|/System*) ;;
+         *)
+	  am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
+	  ;;
+       esac
+       ;;
+     esac
+    ])
+  AC_SUBST([pythondir], [$am_cv_python_pythondir])
+
+  dnl pkgpythondir -- $PACKAGE directory under pythondir.  Was
+  dnl   PYTHON_SITE_PACKAGE in previous betas, but this naming is
+  dnl   more consistent with the rest of automake.
+
+  AC_SUBST([pkgpythondir], [\${pythondir}/$PACKAGE])
+
+  dnl pyexecdir -- directory for installing python extension modules
+  dnl   (shared libraries)
+  dnl Query distutils for this directory.
+  AC_CACHE_CHECK([for $am_display_PYTHON extension module directory],
+    [am_cv_python_pyexecdir],
+    [if test "x$exec_prefix" = xNONE
+     then
+       am_py_exec_prefix=$am_py_prefix
+     else
+       am_py_exec_prefix=$exec_prefix
+     fi
+     am_cv_python_pyexecdir=`$PYTHON -c "
+$am_python_setup_sysconfig
+if can_use_sysconfig:
+    sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
+else:
+    from distutils import sysconfig
+    sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
+sys.stdout.write(sitedir)"`
+     case $am_cv_python_pyexecdir in
+     $am_py_exec_prefix*)
+       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+       ;;
+     *)
+       case $am_py_exec_prefix in
+         /usr|/System*) ;;
+         *)
+	   am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
+	   ;;
+       esac
+       ;;
+     esac
+    ])
+  AC_SUBST([pyexecdir], [$am_cv_python_pyexecdir])
+
+  dnl pkgpyexecdir -- $(pyexecdir)/$(PACKAGE)
+
+  AC_SUBST([pkgpyexecdir], [\${pyexecdir}/$PACKAGE])
+
+  dnl Run any user-specified action.
+  $2
+  fi
+
+])
+
+
+# AM_PYTHON_CHECK_VERSION(PROG, VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+# ---------------------------------------------------------------------------
+# Run ACTION-IF-TRUE if the Python interpreter PROG has version >= VERSION.
+# Run ACTION-IF-FALSE otherwise.
+# This test uses sys.hexversion instead of the string equivalent (first
+# word of sys.version), in order to cope with versions such as 2.2c1.
+# This supports Python 2.0 or higher. (2.0 was released on October 16, 2000).
+AC_DEFUN([AM_PYTHON_CHECK_VERSION],
+ [prog="import sys
+# split strings by '.' and convert to numeric.  Append some zeros
+# because we need at least 4 digits for the hex conversion.
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '$2'.split('.'))) + [[0, 0, 0]]
+minverhex = 0
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[[i]]
+sys.exit(sys.hexversion < minverhex)"
+  AS_IF([AM_RUN_LOG([$1 -c "$prog"])], [$3], [$4])])
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_RUN_LOG(COMMAND)
+# -------------------
+# Run COMMAND, save the exit status in ac_status, and log it.
+# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
+AC_DEFUN([AM_RUN_LOG],
+[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
+   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   (exit $ac_status); }])
+
+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[[\\\"\#\$\&\'\`$am_lf]]*)
+    AC_MSG_ERROR([unsafe absolute working directory name]);;
+esac
+case $srcdir in
+  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
+    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$[*]" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$[*]" != "X $srcdir/configure conftest.file" \
+	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment])
+     fi
+     if test "$[2]" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT([yes])
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+AC_CONFIG_COMMANDS_PRE(
+  [AC_MSG_CHECKING([that generated files are newer than configure])
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   AC_MSG_RESULT([done])])
+rm -f conftest.file
+])
+
+# Copyright (C) 2009-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
+# ("yes" being less verbose, "no" or empty being verbose).
+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+  [--enable-silent-rules],
+  [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
+  [--disable-silent-rules],
+  [verbose build output (undo: "make V=0")])dnl
+])
+case $enable_silent_rules in @%:@ (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+esac
+dnl
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
+dnl do not support nested variable expansions.
+dnl See automake bug#9928 and bug#10237.
+am_make=${MAKE-make}
+AC_CACHE_CHECK([whether $am_make supports nested variables],
+   [am_cv_make_support_nested_variables],
+   [if AS_ECHO([['TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi])
+if test $am_cv_make_support_nested_variables = yes; then
+  dnl Using '$V' instead of '$(V)' breaks IRIX make.
+  AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AC_SUBST([AM_V])dnl
+AM_SUBST_NOTMAKE([AM_V])dnl
+AC_SUBST([AM_DEFAULT_V])dnl
+AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# --------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+#
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AC_SUBST([AMTAR], ['$${TAR-tar}'])
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+
+m4_if([$1], [v7],
+  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
+
+  [m4_case([$1],
+    [ustar],
+     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+      # There is notably a 21 bits limit for the UID and the GID.  In fact,
+      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+      # and bug#13588).
+      am_max_uid=2097151 # 2^21 - 1
+      am_max_gid=$am_max_uid
+      # The $UID and $GID variables are not portable, so we need to resort
+      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
+      # below are definitely unexpected, so allow the users to see them
+      # (that is, avoid stderr redirection).
+      am_uid=`id -u || echo unknown`
+      am_gid=`id -g || echo unknown`
+      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+      if test $am_uid -le $am_max_uid; then
+         AC_MSG_RESULT([yes])
+      else
+         AC_MSG_RESULT([no])
+         _am_tools=none
+      fi
+      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+      if test $am_gid -le $am_max_gid; then
+         AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no])
+        _am_tools=none
+      fi],
+
+  [pax],
+    [],
+
+  [m4_fatal([Unknown tar format])])
+
+  AC_MSG_CHECKING([how to create a $1 tar archive])
+
+  # Go ahead even if we have the value already cached.  We do so because we
+  # need to set the values for the 'am__tar' and 'am__untar' variables.
+  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+  for _am_tool in $_am_tools; do
+    case $_am_tool in
+    gnutar)
+      for _am_tar in tar gnutar gtar; do
+        AM_RUN_LOG([$_am_tar --version]) && break
+      done
+      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
+    plaintar)
+      # Must skip GNU tar: if it does not support --format= it doesn't create
+      # ustar tarball either.
+      (tar --version) >/dev/null 2>&1 && continue
+      am__tar='tar chf - "$$tardir"'
+      am__tar_='tar chf - "$tardir"'
+      am__untar='tar xf -'
+      ;;
+    pax)
+      am__tar='pax -L -x $1 -w "$$tardir"'
+      am__tar_='pax -L -x $1 -w "$tardir"'
+      am__untar='pax -r'
+      ;;
+    cpio)
+      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+      am__untar='cpio -i -H $1 -d'
+      ;;
+    none)
+      am__tar=false
+      am__tar_=false
+      am__untar=false
+      ;;
+    esac
+
+    # If the value was cached, stop now.  We just wanted to have am__tar
+    # and am__untar set.
+    test -n "${am_cv_prog_tar_$1}" && break
+
+    # tar/untar a dummy directory, and stop if the command works.
+    rm -rf conftest.dir
+    mkdir conftest.dir
+    echo GrepMe > conftest.dir/file
+    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+    rm -rf conftest.dir
+    if test -s conftest.tar; then
+      AM_RUN_LOG([$am__untar <conftest.tar])
+      AM_RUN_LOG([cat conftest.dir/file])
+      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+    fi
+  done
+  rm -rf conftest.dir
+
+  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+m4_include([build/ax_boost_base.m4])
+m4_include([build/ax_check_openssl.m4])
+m4_include([build/ax_compare_version.m4])
+m4_include([build/ax_compiler_vendor.m4])
+m4_include([build/ax_cxx_compile_stdcxx_11.m4])
+m4_include([build/ax_lib_curl.m4])
+m4_include([build/ax_lib_readline.m4])
+m4_include([build/ax_path_generic.m4])
+m4_include([build/ax_perl_modules.m4])
+m4_include([build/ax_with_curses.m4])
+m4_include([build/common.m4])
+m4_include([build/crypto.m4])
+m4_include([build/jemalloc.m4])
+m4_include([build/libtool.m4])
+m4_include([build/ltoptions.m4])
+m4_include([build/ltsugar.m4])
+m4_include([build/ltversion.m4])
+m4_include([build/lt~obsolete.m4])
+m4_include([build/lzma.m4])
+m4_include([build/network.m4])
+m4_include([build/pcre.m4])
+m4_include([build/pkg.m4])
+m4_include([build/tcl.m4])
+m4_include([build/tcmalloc.m4])
+m4_include([build/xml.m4])
+m4_include([build/zlib.m4])
diff --git a/build/aux/ar-lib b/build/aux/ar-lib
new file mode 100755
index 00000000..fe2301e7
--- /dev/null
+++ b/build/aux/ar-lib
@@ -0,0 +1,270 @@
+#! /bin/sh
+# Wrapper for Microsoft lib.exe
+
+me=ar-lib
+scriptversion=2012-03-01.08; # UTC
+
+# Copyright (C) 2010-2013 Free Software Foundation, Inc.
+# Written by Peter Rosin <peda@lysator.liu.se>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+
+# func_error message
+func_error ()
+{
+  echo "$me: $1" 1>&2
+  exit 1
+}
+
+file_conv=
+
+# func_file_conv build_file
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv in
+	mingw)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_at_file at_file operation archive
+# Iterate over all members in AT_FILE performing OPERATION on ARCHIVE
+# for each of them.
+# When interpreting the content of the @FILE, do NOT use func_file_conv,
+# since the user would need to supply preconverted file names to
+# binutils ar, at least for MinGW.
+func_at_file ()
+{
+  operation=$2
+  archive=$3
+  at_file_contents=`cat "$1"`
+  eval set x "$at_file_contents"
+  shift
+
+  for member
+  do
+    $AR -NOLOGO $operation:"$member" "$archive" || exit $?
+  done
+}
+
+case $1 in
+  '')
+     func_error "no command.  Try '$0 --help' for more information."
+     ;;
+  -h | --h*)
+    cat <<EOF
+Usage: $me [--help] [--version] PROGRAM ACTION ARCHIVE [MEMBER...]
+
+Members may be specified in a file named with @FILE.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "$me, version $scriptversion"
+    exit $?
+    ;;
+esac
+
+if test $# -lt 3; then
+  func_error "you must specify a program, an action and an archive"
+fi
+
+AR=$1
+shift
+while :
+do
+  if test $# -lt 2; then
+    func_error "you must specify a program, an action and an archive"
+  fi
+  case $1 in
+    -lib | -LIB \
+    | -ltcg | -LTCG \
+    | -machine* | -MACHINE* \
+    | -subsystem* | -SUBSYSTEM* \
+    | -verbose | -VERBOSE \
+    | -wx* | -WX* )
+      AR="$AR $1"
+      shift
+      ;;
+    *)
+      action=$1
+      shift
+      break
+      ;;
+  esac
+done
+orig_archive=$1
+shift
+func_file_conv "$orig_archive"
+archive=$file
+
+# strip leading dash in $action
+action=${action#-}
+
+delete=
+extract=
+list=
+quick=
+replace=
+index=
+create=
+
+while test -n "$action"
+do
+  case $action in
+    d*) delete=yes  ;;
+    x*) extract=yes ;;
+    t*) list=yes    ;;
+    q*) quick=yes   ;;
+    r*) replace=yes ;;
+    s*) index=yes   ;;
+    S*)             ;; # the index is always updated implicitly
+    c*) create=yes  ;;
+    u*)             ;; # TODO: don't ignore the update modifier
+    v*)             ;; # TODO: don't ignore the verbose modifier
+    *)
+      func_error "unknown action specified"
+      ;;
+  esac
+  action=${action#?}
+done
+
+case $delete$extract$list$quick$replace,$index in
+  yes,* | ,yes)
+    ;;
+  yesyes*)
+    func_error "more than one action specified"
+    ;;
+  *)
+    func_error "no action specified"
+    ;;
+esac
+
+if test -n "$delete"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  for member
+  do
+    case $1 in
+      @*)
+        func_at_file "${1#@}" -REMOVE "$archive"
+        ;;
+      *)
+        func_file_conv "$1"
+        $AR -NOLOGO -REMOVE:"$file" "$archive" || exit $?
+        ;;
+    esac
+  done
+
+elif test -n "$extract"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  if test $# -gt 0; then
+    for member
+    do
+      case $1 in
+        @*)
+          func_at_file "${1#@}" -EXTRACT "$archive"
+          ;;
+        *)
+          func_file_conv "$1"
+          $AR -NOLOGO -EXTRACT:"$file" "$archive" || exit $?
+          ;;
+      esac
+    done
+  else
+    $AR -NOLOGO -LIST "$archive" | sed -e 's/\\/\\\\/g' | while read member
+    do
+      $AR -NOLOGO -EXTRACT:"$member" "$archive" || exit $?
+    done
+  fi
+
+elif test -n "$quick$replace"; then
+  if test ! -f "$orig_archive"; then
+    if test -z "$create"; then
+      echo "$me: creating $orig_archive"
+    fi
+    orig_archive=
+  else
+    orig_archive=$archive
+  fi
+
+  for member
+  do
+    case $1 in
+    @*)
+      func_file_conv "${1#@}"
+      set x "$@" "@$file"
+      ;;
+    *)
+      func_file_conv "$1"
+      set x "$@" "$file"
+      ;;
+    esac
+    shift
+    shift
+  done
+
+  if test -n "$orig_archive"; then
+    $AR -NOLOGO -OUT:"$archive" "$orig_archive" "$@" || exit $?
+  else
+    $AR -NOLOGO -OUT:"$archive" "$@" || exit $?
+  fi
+
+elif test -n "$list"; then
+  if test ! -f "$orig_archive"; then
+    func_error "archive not found"
+  fi
+  $AR -NOLOGO -LIST "$archive" || exit $?
+fi
diff --git a/build/aux/compile b/build/aux/compile
new file mode 100755
index 00000000..531136b0
--- /dev/null
+++ b/build/aux/compile
@@ -0,0 +1,347 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2012-10-14.11; # UTC
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/build/aux/config.guess b/build/aux/config.guess
new file mode 100755
index 00000000..1804e9fc
--- /dev/null
+++ b/build/aux/config.guess
@@ -0,0 +1,1535 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+#   2011, 2012, 2013 Free Software Foundation, Inc.
+
+timestamp='2012-12-29'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner. 
+#
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+#
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
+2012, 2013 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	case "${UNAME_MACHINE_ARCH}" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently, or will in the future.
+	case "${UNAME_MACHINE_ARCH}" in
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval $set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "${UNAME_VERSION}" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "${machine}-${os}${release}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+	exit ;;
+    *:SolidBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    *:MirBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE="alphaev5" ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE="alphaev56" ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE="alphapca56" ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE="alphapca57" ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE="alphaev6" ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE="alphaev67" ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE="alphaev69" ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE="alphaev7" ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE="alphaev79" ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Alpha\ *:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# Should we change UNAME_MACHINE based on the output of uname instead
+	# of the specific Alpha model?
+	echo alpha-pc-interix
+	exit ;;
+    21064:Windows_NT:50:3)
+	echo alpha-dec-winnt3.5
+	exit ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix${UNAME_RELEASE}
+	exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux${UNAME_RELEASE}
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	eval $set_cc_for_build
+	SUN_ARCH="i386"
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH="x86_64"
+	    fi
+	fi
+	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos${UNAME_RELEASE}
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint${UNAME_RELEASE}
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint${UNAME_RELEASE}
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint${UNAME_RELEASE}
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten${UNAME_RELEASE}
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten${UNAME_RELEASE}
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c &&
+	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`$dummy $dummyarg` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos${UNAME_RELEASE}
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+	then
+	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+	       [ ${TARGET_BINARY_INTERFACE}x = x ]
+	    then
+		echo m88k-dg-dgux${UNAME_RELEASE}
+	    else
+		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	    fi
+	else
+	    echo i586-dg-dgux${UNAME_RELEASE}
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval $set_cc_for_build
+		sed 's/^		//' << EOF >$dummy.c
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	case "${UNAME_MACHINE}" in
+	    9000/31? )            HP_ARCH=m68000 ;;
+	    9000/[34]?? )         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "${sc_cpu_version}" in
+		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "${sc_kernel_bits}" in
+			  32) HP_ARCH="hppa2.0n" ;;
+			  64) HP_ARCH="hppa2.0w" ;;
+			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "${HP_ARCH}" = "" ]; then
+		    eval $set_cc_for_build
+		    sed 's/^		//' << EOF >$dummy.c
+
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ ${HP_ARCH} = "hppa2.0w" ]
+	then
+	    eval $set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH="hppa2.0w"
+	    else
+		HP_ARCH="hppa64"
+	    fi
+	fi
+	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux${HPUX_REV}
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo ${UNAME_MACHINE}-unknown-osf1mk
+	else
+	    echo ${UNAME_MACHINE}-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_PROCESSOR} in
+	    amd64)
+		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	    *)
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	esac
+	exit ;;
+    i*:CYGWIN*:*)
+	echo ${UNAME_MACHINE}-pc-cygwin
+	exit ;;
+    *:MINGW64*:*)
+	echo ${UNAME_MACHINE}-pc-mingw64
+	exit ;;
+    *:MINGW*:*)
+	echo ${UNAME_MACHINE}-pc-mingw32
+	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
+    i*:windows32*:*)
+	# uname -m includes "-pc" on this system.
+	echo ${UNAME_MACHINE}-mingw32
+	exit ;;
+    i*:PW*:*)
+	echo ${UNAME_MACHINE}-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case ${UNAME_MACHINE} in
+	    x86)
+		echo i586-pc-interix${UNAME_RELEASE}
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	esac ;;
+    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
+	echo i${UNAME_MACHINE}-pc-mks
+	exit ;;
+    8664:Windows_NT:*)
+	echo x86_64-pc-mks
+	exit ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+	# UNAME_MACHINE based on the output of uname instead of i386?
+	echo i586-pc-interix
+	exit ;;
+    i*:UWIN*:*)
+	echo ${UNAME_MACHINE}-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    p*:CYGWIN*:*)
+	echo powerpcle-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu
+	exit ;;
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC}
+	exit ;;
+    arm*:Linux:*:*)
+	eval $set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo ${UNAME_MACHINE}-unknown-linux-gnu
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-gnueabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    cris:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-gnu
+	exit ;;
+    crisv32:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-gnu
+	exit ;;
+    frv:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    hexagon:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    i*86:Linux:*:*)
+	LIBC=gnu
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#ifdef __dietlibc__
+	LIBC=dietlibc
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+	echo "${UNAME_MACHINE}-pc-linux-${LIBC}"
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-gnu"; exit; }
+	;;
+    or32:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-gnu
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-gnu
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-gnu ;;
+	  PA8*) echo hppa2.0-unknown-linux-gnu ;;
+	  *)    echo hppa-unknown-linux-gnu ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-gnu
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-gnu
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo ${UNAME_MACHINE}-ibm-linux
+	exit ;;
+    sh64*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    sh*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    vax:Linux:*:*)
+	echo ${UNAME_MACHINE}-dec-linux-gnu
+	exit ;;
+    x86_64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo ${UNAME_MACHINE}-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo ${UNAME_MACHINE}-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo ${UNAME_MACHINE}-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+	else
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configury will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv${UNAME_RELEASE}
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo ${UNAME_MACHINE}-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo ${UNAME_MACHINE}-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux${UNAME_RELEASE}
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv${UNAME_RELEASE}
+	else
+		echo mips-unknown-sysv${UNAME_RELEASE}
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux${UNAME_RELEASE}
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Rhapsody:*:*)
+	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	case $UNAME_PROCESSOR in
+	    i386)
+		eval $set_cc_for_build
+		if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+		  if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		      (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		      grep IS_64BIT_ARCH >/dev/null
+		  then
+		      UNAME_PROCESSOR="x86_64"
+		  fi
+		fi ;;
+	    unknown) UNAME_PROCESSOR=powerpc ;;
+	esac
+	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = "x86"; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSR-?:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = "386"; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo ${UNAME_MACHINE}-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux${UNAME_RELEASE}
+	exit ;;
+    *:DragonFly:*:*)
+	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "${UNAME_MACHINE}" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	exit ;;
+    i*86:rdos:*:*)
+	echo ${UNAME_MACHINE}-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo ${UNAME_MACHINE}-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
+	exit ;;
+esac
+
+eval $set_cc_for_build
+cat >$dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+	"4"
+#else
+	""
+#endif
+	); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+  printf ("arm-acorn-riscix\n"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+    struct utsname un;
+
+    uname(&un);
+
+    if (strncmp(un.version, "V2", 2) == 0) {
+	printf ("i386-sequent-ptx2\n"); exit (0);
+    }
+    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+	printf ("i386-sequent-ptx1\n"); exit (0);
+    }
+    printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+# if !defined (ultrix)
+#  include <sys/param.h>
+#  if defined (BSD)
+#   if BSD == 43
+      printf ("vax-dec-bsd4.3\n"); exit (0);
+#   else
+#    if BSD == 199006
+      printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#    else
+      printf ("vax-dec-bsd\n"); exit (0);
+#    endif
+#   endif
+#  else
+    printf ("vax-dec-bsd\n"); exit (0);
+#  endif
+# else
+    printf ("vax-dec-ultrix\n"); exit (0);
+# endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+  exit (1);
+}
+EOF
+
+$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
+	{ echo "$SYSTEM_NAME"; exit; }
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+    case `getsysinfo -f cpu_type` in
+    c1*)
+	echo c1-convex-bsd
+	exit ;;
+    c2*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    c34*)
+	echo c34-convex-bsd
+	exit ;;
+    c38*)
+	echo c38-convex-bsd
+	exit ;;
+    c4*)
+	echo c4-convex-bsd
+	exit ;;
+    esac
+fi
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+and
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/build/aux/config.sub b/build/aux/config.sub
new file mode 100755
index 00000000..52f04bcd
--- /dev/null
+++ b/build/aux/config.sub
@@ -0,0 +1,1790 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+#   2011, 2012, 2013 Free Software Foundation, Inc.
+
+timestamp='2012-12-29'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
+2012, 2013 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
+  kopensolaris*-gnu* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray | -microblaze*)
+		os=
+		basic_machine=$1
+		;;
+	-bluegene*)
+		os=-cnk
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+	-chorusrdb)
+		os=-chorusrdb
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-windowsnt*)
+		os=`echo $os | sed -e 's/windowsnt/winnt/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| aarch64 | aarch64_be \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| be32 | be64 \
+	| bfin \
+	| c4x | clipper \
+	| d10v | d30v | dlx | dsp16xx \
+	| epiphany \
+	| fido | fr30 | frv \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
+	| i370 | i860 | i960 | ia64 \
+	| ip2k | iq2000 \
+	| le32 | le64 \
+	| lm32 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64octeon | mips64octeonel \
+	| mips64orion | mips64orionel \
+	| mips64r5900 | mips64r5900el \
+	| mips64vr | mips64vrel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| moxie \
+	| mt \
+	| msp430 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 \
+	| ns16k | ns32k \
+	| open8 \
+	| or32 \
+	| pdp10 | pdp11 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pyramid \
+	| rl78 | rx \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| we32k \
+	| x86 | xc16x | xstormy16 | xtensa \
+	| z8k | z80)
+		basic_machine=$basic_machine-unknown
+		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| aarch64-* | aarch64_be-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| be32-* | be64-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
+	| i*86-* | i860-* | i960-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| le32-* | le64-* \
+	| lm32-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64octeon-* | mips64octeonel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64r5900-* | mips64r5900el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pyramid-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
+	| tron-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| xstormy16-* | xtensa*-* \
+	| ymp-* \
+	| z8k-* | z80-*)
+		;;
+	# Recognize the basic CPU types without company name, with glob match.
+	xtensa*)
+		basic_machine=$basic_machine-unknown
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aros)
+		basic_machine=i386-pc
+		os=-aros
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	blackfin)
+		basic_machine=bfin-unknown
+		os=-linux
+		;;
+	blackfin-*)
+		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	cegcc)
+		basic_machine=arm-unknown
+		os=-cegcc
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16 | cr16-*)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dicos)
+		basic_machine=i686-pc
+		os=-dicos
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2* | dpx2*-bull)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppa-next)
+		os=-nextstep3
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+	i*86v32)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	m68knommu)
+		basic_machine=m68k-unknown
+		os=-linux
+		;;
+	m68knommu-*)
+		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	m88k-omron*)
+		basic_machine=m88k-omron
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	microblaze*)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mips3*-*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+		;;
+	msys)
+		basic_machine=i386-pc
+		os=-msys
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next )
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	parisc)
+		basic_machine=hppa-unknown
+		os=-linux
+		;;
+	parisc-*)
+		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc | ppcbe)	basic_machine=powerpc-unknown
+		;;
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle | ppc-le | powerpc-little)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-* | ppc64p7-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh)
+		basic_machine=sh-hitachi
+		os=-hms
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	sh64)
+		basic_machine=sh64-unknown
+		;;
+	sparclite-wrs | simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tile*)
+		basic_machine=$basic_machine-unknown
+		os=-linux-gnu
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
+	z80-*-coff)
+		basic_machine=z80-unknown
+		os=-sim
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
+		basic_machine=sparc-sun
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases
+	# that might get confused with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# First accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST END IN A *, to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -sym* | -kopensolaris* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* | -aros* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+	-os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-osfrose*)
+		os=-osfrose
+		;;
+	-osf*)
+		os=-osf
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2 )
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
+	-xenix)
+		os=-xenix
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-aros*)
+		os=-aros
+		;;
+	-kaos*)
+		os=-kaos
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-dicos*)
+		os=-dicos
+		;;
+	-nacl*)
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	score-*)
+		os=-elf
+		;;
+	spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	hexagon-*)
+		os=-elf
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-haiku)
+		os=-haiku
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next )
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-next)
+		os=-nextstep3
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-cnk*|-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo $basic_machine$os
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/build/aux/depcomp b/build/aux/depcomp
new file mode 100755
index 00000000..4ebd5b3a
--- /dev/null
+++ b/build/aux/depcomp
@@ -0,0 +1,791 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2013-05-30.07; # UTC
+
+# Copyright (C) 1999-2013 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+  '')
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+    exit 1;
+    ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputting dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+  # This is just like dashmstdout with a different argument.
+  dashmflag=-xM
+  depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+  # This is just like msvisualcpp but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvisualcpp
+fi
+
+if test "$depmode" = msvc7msys; then
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The second -e expression handles DOS-style file names with drive
+  # letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the "deleted header file" problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+## Some versions of gcc put a space before the ':'.  On the theory
+## that the space means something, we add a space to the output as
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like '#:fec' to the end of the
+    # dependency line.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
+      | tr "$nl" ' ' >> "$depfile"
+    echo >> "$depfile"
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+      >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  set_dir_from "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  aix_post_process_depfile
+  ;;
+
+tcc)
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+  # FIXME: That version still under development at the moment of writing.
+  #        Make that this statement remains true also for stable, released
+  #        versions.
+  # It will wrap lines (doesn't matter whether long or short) with a
+  # trailing '\', as in:
+  #
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using '\' :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rmdir "$lockdir"
+      break
+    else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  set_dir_from  "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add 'dependent.h:' lines.
+    sed -ne '2,${
+               s/^ *//
+               s/ \\*$//
+               s/$/:/
+               p
+             }' "$tmpdepfile" >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+  # The Tru64 compiler uses -MD to generate dependencies as a side
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+  # dependencies in 'foo.d' instead, so we check for that too.
+  # Subdirectories are respected.
+  set_dir_from  "$object"
+  set_base_from "$object"
+
+  if test "$libtool" = yes; then
+    # Libtool generates 2 separate objects for the 2 libraries.  These
+    # two compilations output dependencies in $dir.libs/$base.o.d and
+    # in $dir$base.o.d.  We have to check for both files, because
+    # one of the two compilations can be disabled.  We should prefer
+    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+    # automatically cleaned when .libs/ is deleted, while ignoring
+    # the former would cause a distcleancheck panic.
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
+    "$@" -Wc,-MD
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    tmpdepfile3=$dir$base.d
+    "$@" -MD
+  fi
+
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  # Same post-processing that is required for AIX mode.
+  aix_post_process_depfile
+  ;;
+
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for ':'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
+  "$@" $dashmflag |
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+        set fnord "$@"
+        shift
+        shift
+        ;;
+    *)
+        set fnord "$@" "$arg"
+        shift
+        shift
+        ;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/build/aux/install-sh b/build/aux/install-sh
new file mode 100755
index 00000000..377bb868
--- /dev/null
+++ b/build/aux/install-sh
@@ -0,0 +1,527 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2011-11-20.07; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+nl='
+'
+IFS=" ""	$nl"
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit=${DOITPROG-}
+if test -z "$doit"; then
+  doit_exec=exec
+else
+  doit_exec=$doit
+fi
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_glob='?'
+initialize_posix_glob='
+  test "$posix_glob" != "?" || {
+    if (set -f) 2>/dev/null; then
+      posix_glob=
+    else
+      posix_glob=:
+    fi
+  }
+'
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+no_target_directory=
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+	shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+	case $mode in
+	  *' '* | *'	'* | *'
+'*	  | *'*'* | *'?'* | *'['*)
+	    echo "$0: invalid mode: $mode" >&2
+	    exit 1;;
+	esac
+	shift;;
+
+    -o) chowncmd="$chownprog $2"
+	shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t) dst_arg=$2
+	# Protect names problematic for 'test' and other utilities.
+	case $dst_arg in
+	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+	esac
+	shift;;
+
+    -T) no_target_directory=true;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --)	shift
+	break;;
+
+    -*)	echo "$0: invalid option: $1" >&2
+	exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename; won't work
+    # if double slashes aren't ignored.
+    if test -d "$dst"; then
+      if test -n "$no_target_directory"; then
+	echo "$0: $dst_arg: Is a directory" >&2
+	exit 1
+      fi
+      dstdir=$dst
+      dst=$dstdir/`basename "$src"`
+      dstdir_status=0
+    else
+      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`
+	(dirname "$dst") 2>/dev/null ||
+	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	     X"$dst" : 'X\(//\)[^/]' \| \
+	     X"$dst" : 'X\(//\)$' \| \
+	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+	echo X"$dst" |
+	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)[^/].*/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\).*/{
+		   s//\1/
+		   q
+		 }
+		 s/.*/./; q'
+      `
+
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+	# Create intermediate dirs using mode 755 as modified by the umask.
+	# This is like FreeBSD 'install' as of 1997-10-28.
+	umask=`umask`
+	case $stripcmd.$umask in
+	  # Optimize common cases.
+	  *[2367][2367]) mkdir_umask=$umask;;
+	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+	  *[0-7])
+	    mkdir_umask=`expr $umask + 22 \
+	      - $umask % 100 % 40 + $umask % 20 \
+	      - $umask % 10 % 4 + $umask % 2
+	    `;;
+	  *) mkdir_umask=$umask,go-w;;
+	esac
+
+	# With -d, create the new directory with the user-specified mode.
+	# Otherwise, rely on $mkdir_umask.
+	if test -n "$dir_arg"; then
+	  mkdir_mode=-m$mode
+	else
+	  mkdir_mode=
+	fi
+
+	posix_mkdir=false
+	case $umask in
+	  *[123567][0-7][0-7])
+	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+	    ;;
+	  *)
+	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+	    if (umask $mkdir_umask &&
+		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+	    then
+	      if test -z "$dir_arg" || {
+		   # Check for POSIX incompatibilities with -m.
+		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+		   # other-writable bit of parent directory when it shouldn't.
+		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+		   case $ls_ld_tmpdir in
+		     d????-?r-*) different_mode=700;;
+		     d????-?--*) different_mode=755;;
+		     *) false;;
+		   esac &&
+		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+		   }
+		 }
+	      then posix_mkdir=:
+	      fi
+	      rmdir "$tmpdir/d" "$tmpdir"
+	    else
+	      # Remove any dirs left behind by ancient mkdir implementations.
+	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+	    fi
+	    trap '' 0;;
+	esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+	umask $mkdir_umask &&
+	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+	/*) prefix='/';;
+	[-=\(\)!]*) prefix='./';;
+	*)  prefix='';;
+      esac
+
+      eval "$initialize_posix_glob"
+
+      oIFS=$IFS
+      IFS=/
+      $posix_glob set -f
+      set fnord $dstdir
+      shift
+      $posix_glob set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+	test X"$d" = X && continue
+
+	prefix=$prefix$d
+	if test -d "$prefix"; then
+	  prefixes=
+	else
+	  if $posix_mkdir; then
+	    (umask=$mkdir_umask &&
+	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+	    # Don't fail if two instances are running concurrently.
+	    test -d "$prefix" || exit 1
+	  else
+	    case $prefix in
+	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+	      *) qprefix=$prefix;;
+	    esac
+	    prefixes="$prefixes '$qprefix'"
+	  fi
+	fi
+	prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+	# Don't fail if two instances are running concurrently.
+	(umask $mkdir_umask &&
+	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+	  test -d "$dstdir" || exit 1
+	obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=$dstdir/_inst.$$_
+    rmtmp=$dstdir/_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
+
+       eval "$initialize_posix_glob" &&
+       $posix_glob set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       $posix_glob set +f &&
+
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+	# Now remove or move aside any old file at destination location.
+	# We try this two ways since rm can't unlink itself on some
+	# systems and the destination file might be busy for other
+	# reasons.  In this case, the final cleanup might fail but the new
+	# file should still install successfully.
+	{
+	  test ! -f "$dst" ||
+	  $doit $rmcmd -f "$dst" 2>/dev/null ||
+	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+	  } ||
+	  { echo "$0: cannot unlink or rename $dst" >&2
+	    (exit 1); exit 1
+	  }
+	} &&
+
+	# Now rename the file to the real destination.
+	$doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/build/aux/ltmain.sh b/build/aux/ltmain.sh
new file mode 100644
index 00000000..63ae69dc
--- /dev/null
+++ b/build/aux/ltmain.sh
@@ -0,0 +1,9655 @@
+
+# libtool (GNU libtool) 2.4.2
+# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html,
+# or obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+# Usage: $progname [OPTION]... [MODE-ARG]...
+#
+# Provide generalized library-building support services.
+#
+#       --config             show all configuration variables
+#       --debug              enable verbose shell tracing
+#   -n, --dry-run            display commands without modifying any files
+#       --features           display basic configuration information and exit
+#       --mode=MODE          use operation mode MODE
+#       --preserve-dup-deps  don't remove duplicate dependency libraries
+#       --quiet, --silent    don't print informational messages
+#       --no-quiet, --no-silent
+#                            print informational messages (default)
+#       --no-warn            don't display warning messages
+#       --tag=TAG            use configuration variables from tag TAG
+#   -v, --verbose            print more informational messages than default
+#       --no-verbose         don't print the extra informational messages
+#       --version            print version information
+#   -h, --help, --help-all   print short, long, or detailed help message
+#
+# MODE must be one of the following:
+#
+#         clean              remove files from the build directory
+#         compile            compile a source file into a libtool object
+#         execute            automatically set library path, then run a program
+#         finish             complete the installation of libtool libraries
+#         install            install libraries or executables
+#         link               create a library or an executable
+#         uninstall          remove libraries from an installed directory
+#
+# MODE-ARGS vary depending on the MODE.  When passed as first option,
+# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that.
+# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
+#
+# When reporting a bug, please describe a test case to reproduce it and
+# include the following information:
+#
+#         host-triplet:	$host
+#         shell:		$SHELL
+#         compiler:		$LTCC
+#         compiler flags:		$LTCFLAGS
+#         linker:		$LD (gnu? $with_gnu_ld)
+#         $progname:	(GNU libtool) 2.4.2
+#         automake:	$automake_version
+#         autoconf:	$autoconf_version
+#
+# Report bugs to <bug-libtool@gnu.org>.
+# GNU libtool home page: <http://www.gnu.org/software/libtool/>.
+# General help using GNU software: <http://www.gnu.org/gethelp/>.
+
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION=2.4.2
+TIMESTAMP=""
+package_revision=1.3337
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# NLS nuisances: We save the old values to restore during execute mode.
+lt_user_locale=
+lt_safe_locale=
+for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+  eval "if test \"\${$lt_var+set}\" = set; then
+          save_$lt_var=\$$lt_var
+          $lt_var=C
+	  export $lt_var
+	  lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
+	  lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
+	fi"
+done
+LC_ALL=C
+LANGUAGE=C
+export LANGUAGE LC_ALL
+
+$lt_unset CDPATH
+
+
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath="$0"
+
+
+
+: ${CP="cp -f"}
+test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
+: ${MAKE="make"}
+: ${MKDIR="mkdir"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+: ${Xsed="$SED -e 1s/^X//"}
+
+# Global variables:
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
+
+exit_status=$EXIT_SUCCESS
+
+# Make sure IFS has a sensible default
+lt_nl='
+'
+IFS=" 	$lt_nl"
+
+dirname="s,/[^/]*$,,"
+basename="s,^.*/,,"
+
+# func_dirname file append nondir_replacement
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+func_dirname ()
+{
+    func_dirname_result=`$ECHO "${1}" | $SED "$dirname"`
+    if test "X$func_dirname_result" = "X${1}"; then
+      func_dirname_result="${3}"
+    else
+      func_dirname_result="$func_dirname_result${2}"
+    fi
+} # func_dirname may be replaced by extended shell implementation
+
+
+# func_basename file
+func_basename ()
+{
+    func_basename_result=`$ECHO "${1}" | $SED "$basename"`
+} # func_basename may be replaced by extended shell implementation
+
+
+# func_dirname_and_basename file append nondir_replacement
+# perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# Implementation must be kept synchronized with func_dirname
+# and func_basename. For efficiency, we do not delegate to
+# those functions but instead duplicate the functionality here.
+func_dirname_and_basename ()
+{
+    # Extract subdirectory from the argument.
+    func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"`
+    if test "X$func_dirname_result" = "X${1}"; then
+      func_dirname_result="${3}"
+    else
+      func_dirname_result="$func_dirname_result${2}"
+    fi
+    func_basename_result=`$ECHO "${1}" | $SED -e "$basename"`
+} # func_dirname_and_basename may be replaced by extended shell implementation
+
+
+# func_stripname prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+# func_strip_suffix prefix name
+func_stripname ()
+{
+    case ${2} in
+      .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+      *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+    esac
+} # func_stripname may be replaced by extended shell implementation
+
+
+# These SED scripts presuppose an absolute path with a trailing slash.
+pathcar='s,^/\([^/]*\).*$,\1,'
+pathcdr='s,^/[^/]*,,'
+removedotparts=':dotsl
+		s@/\./@/@g
+		t dotsl
+		s,/\.$,/,'
+collapseslashes='s@/\{1,\}@/@g'
+finalslash='s,/*$,/,'
+
+# func_normal_abspath PATH
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+#             value returned in "$func_normal_abspath_result"
+func_normal_abspath ()
+{
+  # Start from root dir and reassemble the path.
+  func_normal_abspath_result=
+  func_normal_abspath_tpath=$1
+  func_normal_abspath_altnamespace=
+  case $func_normal_abspath_tpath in
+    "")
+      # Empty path, that just means $cwd.
+      func_stripname '' '/' "`pwd`"
+      func_normal_abspath_result=$func_stripname_result
+      return
+    ;;
+    # The next three entries are used to spot a run of precisely
+    # two leading slashes without using negated character classes;
+    # we take advantage of case's first-match behaviour.
+    ///*)
+      # Unusual form of absolute path, do nothing.
+    ;;
+    //*)
+      # Not necessarily an ordinary path; POSIX reserves leading '//'
+      # and for example Cygwin uses it to access remote file shares
+      # over CIFS/SMB, so we conserve a leading double slash if found.
+      func_normal_abspath_altnamespace=/
+    ;;
+    /*)
+      # Absolute path, do nothing.
+    ;;
+    *)
+      # Relative path, prepend $cwd.
+      func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+    ;;
+  esac
+  # Cancel out all the simple stuff to save iterations.  We also want
+  # the path to end with a slash for ease of parsing, so make sure
+  # there is one (and only one) here.
+  func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"`
+  while :; do
+    # Processed it all yet?
+    if test "$func_normal_abspath_tpath" = / ; then
+      # If we ascended to the root using ".." the result may be empty now.
+      if test -z "$func_normal_abspath_result" ; then
+        func_normal_abspath_result=/
+      fi
+      break
+    fi
+    func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$pathcar"`
+    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$pathcdr"`
+    # Figure out what to do with it
+    case $func_normal_abspath_tcomponent in
+      "")
+        # Trailing empty path component, ignore it.
+      ;;
+      ..)
+        # Parent dir; strip last assembled component from result.
+        func_dirname "$func_normal_abspath_result"
+        func_normal_abspath_result=$func_dirname_result
+      ;;
+      *)
+        # Actual path component, append it.
+        func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent
+      ;;
+    esac
+  done
+  # Restore leading double-slash if one was found on entry.
+  func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+# func_relative_path SRCDIR DSTDIR
+# generates a relative path from SRCDIR to DSTDIR, with a trailing
+# slash if non-empty, suitable for immediately appending a filename
+# without needing to append a separator.
+#             value returned in "$func_relative_path_result"
+func_relative_path ()
+{
+  func_relative_path_result=
+  func_normal_abspath "$1"
+  func_relative_path_tlibdir=$func_normal_abspath_result
+  func_normal_abspath "$2"
+  func_relative_path_tbindir=$func_normal_abspath_result
+
+  # Ascend the tree starting from libdir
+  while :; do
+    # check if we have found a prefix of bindir
+    case $func_relative_path_tbindir in
+      $func_relative_path_tlibdir)
+        # found an exact match
+        func_relative_path_tcancelled=
+        break
+        ;;
+      $func_relative_path_tlibdir*)
+        # found a matching prefix
+        func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+        func_relative_path_tcancelled=$func_stripname_result
+        if test -z "$func_relative_path_result"; then
+          func_relative_path_result=.
+        fi
+        break
+        ;;
+      *)
+        func_dirname $func_relative_path_tlibdir
+        func_relative_path_tlibdir=${func_dirname_result}
+        if test "x$func_relative_path_tlibdir" = x ; then
+          # Have to descend all the way to the root!
+          func_relative_path_result=../$func_relative_path_result
+          func_relative_path_tcancelled=$func_relative_path_tbindir
+          break
+        fi
+        func_relative_path_result=../$func_relative_path_result
+        ;;
+    esac
+  done
+
+  # Now calculate path; take care to avoid doubling-up slashes.
+  func_stripname '' '/' "$func_relative_path_result"
+  func_relative_path_result=$func_stripname_result
+  func_stripname '/' '/' "$func_relative_path_tcancelled"
+  if test "x$func_stripname_result" != x ; then
+    func_relative_path_result=${func_relative_path_result}/${func_stripname_result}
+  fi
+
+  # Normalisation. If bindir is libdir, return empty string,
+  # else relative path ending with a slash; either way, target
+  # file name can be directly appended.
+  if test ! -z "$func_relative_path_result"; then
+    func_stripname './' '' "$func_relative_path_result/"
+    func_relative_path_result=$func_stripname_result
+  fi
+}
+
+# The name of this program:
+func_dirname_and_basename "$progpath"
+progname=$func_basename_result
+
+# Make sure we have an absolute path for reexecution:
+case $progpath in
+  [\\/]*|[A-Za-z]:\\*) ;;
+  *[\\/]*)
+     progdir=$func_dirname_result
+     progdir=`cd "$progdir" && pwd`
+     progpath="$progdir/$progname"
+     ;;
+  *)
+     save_IFS="$IFS"
+     IFS=${PATH_SEPARATOR-:}
+     for progdir in $PATH; do
+       IFS="$save_IFS"
+       test -x "$progdir/$progname" && break
+     done
+     IFS="$save_IFS"
+     test -n "$progdir" || progdir=`pwd`
+     progpath="$progdir/$progname"
+     ;;
+esac
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed="${SED}"' -e 1s/^X//'
+sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s,[].[^$\\*\/],\\&,g'
+
+# Sed substitution that converts a w32 file name or path
+# which contains forward slashes, into one that contains
+# (escaped) backslashes.  A very naive implementation.
+lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-`\' parameter expansions in output of double_quote_subst that were
+# `\'-ed in input to the same.  If an odd number of `\' preceded a '$'
+# in input to double_quote_subst, that '$' was protected from expansion.
+# Since each input `\' is now two `\'s, look for any number of runs of
+# four `\'s followed by two `\'s and then a '$'.  `\' that '$'.
+bs='\\'
+bs2='\\\\'
+bs4='\\\\\\\\'
+dollar='\$'
+sed_double_backslash="\
+  s/$bs4/&\\
+/g
+  s/^$bs2$dollar/$bs&/
+  s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
+  s/\n//g"
+
+# Standard options:
+opt_dry_run=false
+opt_help=false
+opt_quiet=false
+opt_verbose=false
+opt_warning=:
+
+# func_echo arg...
+# Echo program name prefixed message, along with the current mode
+# name if it has been set yet.
+func_echo ()
+{
+    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+}
+
+# func_verbose arg...
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+    $opt_verbose && func_echo ${1+"$@"}
+
+    # A bug in bash halts the script if the last line of a function
+    # fails when set -e is in force, so we need another command to
+    # work around that:
+    :
+}
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+# func_error arg...
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+}
+
+# func_warning arg...
+# Echo program name prefixed warning message to standard error.
+func_warning ()
+{
+    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
+
+    # bash bug again:
+    :
+}
+
+# func_fatal_error arg...
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+    func_error ${1+"$@"}
+    exit $EXIT_FAILURE
+}
+
+# func_fatal_help arg...
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+    func_error ${1+"$@"}
+    func_fatal_error "$help"
+}
+help="Try \`$progname --help' for more information."  ## default
+
+
+# func_grep expression filename
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+    $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_mkdir_p directory-path
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+    my_directory_path="$1"
+    my_dir_list=
+
+    if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
+
+      # Protect directory names starting with `-'
+      case $my_directory_path in
+        -*) my_directory_path="./$my_directory_path" ;;
+      esac
+
+      # While some portion of DIR does not yet exist...
+      while test ! -d "$my_directory_path"; do
+        # ...make a list in topmost first order.  Use a colon delimited
+	# list incase some portion of path contains whitespace.
+        my_dir_list="$my_directory_path:$my_dir_list"
+
+        # If the last portion added has no slash in it, the list is done
+        case $my_directory_path in */*) ;; *) break ;; esac
+
+        # ...otherwise throw away the child directory and loop
+        my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"`
+      done
+      my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'`
+
+      save_mkdir_p_IFS="$IFS"; IFS=':'
+      for my_dir in $my_dir_list; do
+	IFS="$save_mkdir_p_IFS"
+        # mkdir can fail with a `File exist' error if two processes
+        # try to create one of the directories concurrently.  Don't
+        # stop in that case!
+        $MKDIR "$my_dir" 2>/dev/null || :
+      done
+      IFS="$save_mkdir_p_IFS"
+
+      # Bail out if we (or some other process) failed to create a directory.
+      test -d "$my_directory_path" || \
+        func_fatal_error "Failed to create \`$1'"
+    fi
+}
+
+
+# func_mktempdir [string]
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible.  If
+# given, STRING is the basename for that directory.
+func_mktempdir ()
+{
+    my_template="${TMPDIR-/tmp}/${1-$progname}"
+
+    if test "$opt_dry_run" = ":"; then
+      # Return a directory name, but don't create it in dry-run mode
+      my_tmpdir="${my_template}-$$"
+    else
+
+      # If mktemp works, use that first and foremost
+      my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
+
+      if test ! -d "$my_tmpdir"; then
+        # Failing that, at least try and use $RANDOM to avoid a race
+        my_tmpdir="${my_template}-${RANDOM-0}$$"
+
+        save_mktempdir_umask=`umask`
+        umask 0077
+        $MKDIR "$my_tmpdir"
+        umask $save_mktempdir_umask
+      fi
+
+      # If we're not in dry-run mode, bomb out on failure
+      test -d "$my_tmpdir" || \
+        func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
+    fi
+
+    $ECHO "$my_tmpdir"
+}
+
+
+# func_quote_for_eval arg
+# Aesthetically quote ARG to be evaled later.
+# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
+# is double-quoted, suitable for a subsequent eval, whereas
+# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
+# which are still active within double quotes backslashified.
+func_quote_for_eval ()
+{
+    case $1 in
+      *[\\\`\"\$]*)
+	func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;;
+      *)
+        func_quote_for_eval_unquoted_result="$1" ;;
+    esac
+
+    case $func_quote_for_eval_unquoted_result in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting, command substitution and and variable
+      # expansion for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
+        ;;
+      *)
+        func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
+    esac
+}
+
+
+# func_quote_for_expand arg
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+    case $1 in
+      *[\\\`\"]*)
+	my_arg=`$ECHO "$1" | $SED \
+	    -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        my_arg="$1" ;;
+    esac
+
+    case $my_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        my_arg="\"$my_arg\""
+        ;;
+    esac
+
+    func_quote_for_expand_result="$my_arg"
+}
+
+
+# func_show_eval cmd [fail_exp]
+# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+    my_cmd="$1"
+    my_fail_exp="${2-:}"
+
+    ${opt_silent-false} || {
+      func_quote_for_expand "$my_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    if ${opt_dry_run-false}; then :; else
+      eval "$my_cmd"
+      my_status=$?
+      if test "$my_status" -eq 0; then :; else
+	eval "(exit $my_status); $my_fail_exp"
+      fi
+    fi
+}
+
+
+# func_show_eval_locale cmd [fail_exp]
+# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.  Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+    my_cmd="$1"
+    my_fail_exp="${2-:}"
+
+    ${opt_silent-false} || {
+      func_quote_for_expand "$my_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    if ${opt_dry_run-false}; then :; else
+      eval "$lt_user_locale
+	    $my_cmd"
+      my_status=$?
+      eval "$lt_safe_locale"
+      if test "$my_status" -eq 0; then :; else
+	eval "(exit $my_status); $my_fail_exp"
+      fi
+    fi
+}
+
+# func_tr_sh
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result.  All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+  case $1 in
+  [0-9]* | *[!a-zA-Z0-9_]*)
+    func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'`
+    ;;
+  * )
+    func_tr_sh_result=$1
+    ;;
+  esac
+}
+
+
+# func_version
+# Echo version message to standard output and exit.
+func_version ()
+{
+    $opt_debug
+
+    $SED -n '/(C)/!b go
+	:more
+	/\./!{
+	  N
+	  s/\n# / /
+	  b more
+	}
+	:go
+	/^# '$PROGRAM' (GNU /,/# warranty; / {
+        s/^# //
+	s/^# *$//
+        s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
+        p
+     }' < "$progpath"
+     exit $?
+}
+
+# func_usage
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+    $opt_debug
+
+    $SED -n '/^# Usage:/,/^#  *.*--help/ {
+        s/^# //
+	s/^# *$//
+	s/\$progname/'$progname'/
+	p
+    }' < "$progpath"
+    echo
+    $ECHO "run \`$progname --help | more' for full usage"
+    exit $?
+}
+
+# func_help [NOEXIT]
+# Echo long help message to standard output and exit,
+# unless 'noexit' is passed as argument.
+func_help ()
+{
+    $opt_debug
+
+    $SED -n '/^# Usage:/,/# Report bugs to/ {
+	:print
+        s/^# //
+	s/^# *$//
+	s*\$progname*'$progname'*
+	s*\$host*'"$host"'*
+	s*\$SHELL*'"$SHELL"'*
+	s*\$LTCC*'"$LTCC"'*
+	s*\$LTCFLAGS*'"$LTCFLAGS"'*
+	s*\$LD*'"$LD"'*
+	s/\$with_gnu_ld/'"$with_gnu_ld"'/
+	s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
+	s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
+	p
+	d
+     }
+     /^# .* home page:/b print
+     /^# General help using/b print
+     ' < "$progpath"
+    ret=$?
+    if test -z "$1"; then
+      exit $ret
+    fi
+}
+
+# func_missing_arg argname
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+    $opt_debug
+
+    func_error "missing argument for $1."
+    exit_cmd=exit
+}
+
+
+# func_split_short_opt shortopt
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+func_split_short_opt ()
+{
+    my_sed_short_opt='1s/^\(..\).*$/\1/;q'
+    my_sed_short_rest='1s/^..\(.*\)$/\1/;q'
+
+    func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"`
+    func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"`
+} # func_split_short_opt may be replaced by extended shell implementation
+
+
+# func_split_long_opt longopt
+# Set func_split_long_opt_name and func_split_long_opt_arg shell
+# variables after splitting LONGOPT at the `=' sign.
+func_split_long_opt ()
+{
+    my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
+    my_sed_long_arg='1s/^--[^=]*=//'
+
+    func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"`
+    func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"`
+} # func_split_long_opt may be replaced by extended shell implementation
+
+exit_cmd=:
+
+
+
+
+
+magic="%%%MAGIC variable%%%"
+magic_exe="%%%MAGIC EXE variable%%%"
+
+# Global variables.
+nonopt=
+preserve_args=
+lo2o="s/\\.lo\$/.${objext}/"
+o2lo="s/\\.${objext}\$/.lo/"
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+# func_append var value
+# Append VALUE to the end of shell variable VAR.
+func_append ()
+{
+    eval "${1}=\$${1}\${2}"
+} # func_append may be replaced by extended shell implementation
+
+# func_append_quoted var value
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+func_append_quoted ()
+{
+    func_quote_for_eval "${2}"
+    eval "${1}=\$${1}\\ \$func_quote_for_eval_result"
+} # func_append_quoted may be replaced by extended shell implementation
+
+
+# func_arith arithmetic-term...
+func_arith ()
+{
+    func_arith_result=`expr "${@}"`
+} # func_arith may be replaced by extended shell implementation
+
+
+# func_len string
+# STRING may not start with a hyphen.
+func_len ()
+{
+    func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len`
+} # func_len may be replaced by extended shell implementation
+
+
+# func_lo2o object
+func_lo2o ()
+{
+    func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"`
+} # func_lo2o may be replaced by extended shell implementation
+
+
+# func_xform libobj-or-source
+func_xform ()
+{
+    func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'`
+} # func_xform may be replaced by extended shell implementation
+
+
+# func_fatal_configuration arg...
+# Echo program name prefixed message to standard error, followed by
+# a configuration failure hint, and exit.
+func_fatal_configuration ()
+{
+    func_error ${1+"$@"}
+    func_error "See the $PACKAGE documentation for more information."
+    func_fatal_error "Fatal configuration error."
+}
+
+
+# func_config
+# Display the configuration for all the tags in this script.
+func_config ()
+{
+    re_begincf='^# ### BEGIN LIBTOOL'
+    re_endcf='^# ### END LIBTOOL'
+
+    # Default configuration.
+    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
+
+    # Now print the configurations for the tags.
+    for tagname in $taglist; do
+      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
+    done
+
+    exit $?
+}
+
+# func_features
+# Display the features supported by this script.
+func_features ()
+{
+    echo "host: $host"
+    if test "$build_libtool_libs" = yes; then
+      echo "enable shared libraries"
+    else
+      echo "disable shared libraries"
+    fi
+    if test "$build_old_libs" = yes; then
+      echo "enable static libraries"
+    else
+      echo "disable static libraries"
+    fi
+
+    exit $?
+}
+
+# func_enable_tag tagname
+# Verify that TAGNAME is valid, and either flag an error and exit, or
+# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
+# variable here.
+func_enable_tag ()
+{
+  # Global variable:
+  tagname="$1"
+
+  re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+  re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+  sed_extractcf="/$re_begincf/,/$re_endcf/p"
+
+  # Validate tagname.
+  case $tagname in
+    *[!-_A-Za-z0-9,/]*)
+      func_fatal_error "invalid tag name: $tagname"
+      ;;
+  esac
+
+  # Don't test for the "default" C tag, as we know it's
+  # there but not specially marked.
+  case $tagname in
+    CC) ;;
+    *)
+      if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+	taglist="$taglist $tagname"
+
+	# Evaluate the configuration.  Be careful to quote the path
+	# and the sed script, to avoid splitting on whitespace, but
+	# also don't use non-portable quotes within backquotes within
+	# quotes we have to do it in 2 steps:
+	extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+	eval "$extractedcf"
+      else
+	func_error "ignoring unknown tag $tagname"
+      fi
+      ;;
+  esac
+}
+
+# func_check_version_match
+# Ensure that we are using m4 macros, and libtool script from the same
+# release of libtool.
+func_check_version_match ()
+{
+  if test "$package_revision" != "$macro_revision"; then
+    if test "$VERSION" != "$macro_version"; then
+      if test -z "$macro_version"; then
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from an older release.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+      else
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+      fi
+    else
+      cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
+$progname: but the definition of this LT_INIT comes from revision $macro_revision.
+$progname: You should recreate aclocal.m4 with macros from revision $package_revision
+$progname: of $PACKAGE $VERSION and run autoconf again.
+_LT_EOF
+    fi
+
+    exit $EXIT_MISMATCH
+  fi
+}
+
+
+# Shorthand for --mode=foo, only valid as the first argument
+case $1 in
+clean|clea|cle|cl)
+  shift; set dummy --mode clean ${1+"$@"}; shift
+  ;;
+compile|compil|compi|comp|com|co|c)
+  shift; set dummy --mode compile ${1+"$@"}; shift
+  ;;
+execute|execut|execu|exec|exe|ex|e)
+  shift; set dummy --mode execute ${1+"$@"}; shift
+  ;;
+finish|finis|fini|fin|fi|f)
+  shift; set dummy --mode finish ${1+"$@"}; shift
+  ;;
+install|instal|insta|inst|ins|in|i)
+  shift; set dummy --mode install ${1+"$@"}; shift
+  ;;
+link|lin|li|l)
+  shift; set dummy --mode link ${1+"$@"}; shift
+  ;;
+uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+  shift; set dummy --mode uninstall ${1+"$@"}; shift
+  ;;
+esac
+
+
+
+# Option defaults:
+opt_debug=:
+opt_dry_run=false
+opt_config=false
+opt_preserve_dup_deps=false
+opt_features=false
+opt_finish=false
+opt_help=false
+opt_help_all=false
+opt_silent=:
+opt_warning=:
+opt_verbose=:
+opt_silent=false
+opt_verbose=false
+
+
+# Parse options once, thoroughly.  This comes as soon as possible in the
+# script to make things like `--version' happen as quickly as we can.
+{
+  # this just eases exit handling
+  while test $# -gt 0; do
+    opt="$1"
+    shift
+    case $opt in
+      --debug|-x)	opt_debug='set -x'
+			func_echo "enabling shell trace mode"
+			$opt_debug
+			;;
+      --dry-run|--dryrun|-n)
+			opt_dry_run=:
+			;;
+      --config)
+			opt_config=:
+func_config
+			;;
+      --dlopen|-dlopen)
+			optarg="$1"
+			opt_dlopen="${opt_dlopen+$opt_dlopen
+}$optarg"
+			shift
+			;;
+      --preserve-dup-deps)
+			opt_preserve_dup_deps=:
+			;;
+      --features)
+			opt_features=:
+func_features
+			;;
+      --finish)
+			opt_finish=:
+set dummy --mode finish ${1+"$@"}; shift
+			;;
+      --help)
+			opt_help=:
+			;;
+      --help-all)
+			opt_help_all=:
+opt_help=': help-all'
+			;;
+      --mode)
+			test $# = 0 && func_missing_arg $opt && break
+			optarg="$1"
+			opt_mode="$optarg"
+case $optarg in
+  # Valid mode arguments:
+  clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+  # Catch anything else as an error
+  *) func_error "invalid argument for $opt"
+     exit_cmd=exit
+     break
+     ;;
+esac
+			shift
+			;;
+      --no-silent|--no-quiet)
+			opt_silent=false
+func_append preserve_args " $opt"
+			;;
+      --no-warning|--no-warn)
+			opt_warning=false
+func_append preserve_args " $opt"
+			;;
+      --no-verbose)
+			opt_verbose=false
+func_append preserve_args " $opt"
+			;;
+      --silent|--quiet)
+			opt_silent=:
+func_append preserve_args " $opt"
+        opt_verbose=false
+			;;
+      --verbose|-v)
+			opt_verbose=:
+func_append preserve_args " $opt"
+opt_silent=false
+			;;
+      --tag)
+			test $# = 0 && func_missing_arg $opt && break
+			optarg="$1"
+			opt_tag="$optarg"
+func_append preserve_args " $opt $optarg"
+func_enable_tag "$optarg"
+			shift
+			;;
+
+      -\?|-h)		func_usage				;;
+      --help)		func_help				;;
+      --version)	func_version				;;
+
+      # Separate optargs to long options:
+      --*=*)
+			func_split_long_opt "$opt"
+			set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"}
+			shift
+			;;
+
+      # Separate non-argument short options:
+      -\?*|-h*|-n*|-v*)
+			func_split_short_opt "$opt"
+			set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"}
+			shift
+			;;
+
+      --)		break					;;
+      -*)		func_fatal_help "unrecognized option \`$opt'" ;;
+      *)		set dummy "$opt" ${1+"$@"};	shift; break  ;;
+    esac
+  done
+
+  # Validate options:
+
+  # save first non-option argument
+  if test "$#" -gt 0; then
+    nonopt="$opt"
+    shift
+  fi
+
+  # preserve --debug
+  test "$opt_debug" = : || func_append preserve_args " --debug"
+
+  case $host in
+    *cygwin* | *mingw* | *pw32* | *cegcc*)
+      # don't eliminate duplications in $postdeps and $predeps
+      opt_duplicate_compiler_generated_deps=:
+      ;;
+    *)
+      opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+      ;;
+  esac
+
+  $opt_help || {
+    # Sanity checks first:
+    func_check_version_match
+
+    if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
+      func_fatal_configuration "not configured to build any kind of library"
+    fi
+
+    # Darwin sucks
+    eval std_shrext=\"$shrext_cmds\"
+
+    # Only execute mode is allowed to have -dlopen flags.
+    if test -n "$opt_dlopen" && test "$opt_mode" != execute; then
+      func_error "unrecognized option \`-dlopen'"
+      $ECHO "$help" 1>&2
+      exit $EXIT_FAILURE
+    fi
+
+    # Change the help message to a mode-specific one.
+    generic_help="$help"
+    help="Try \`$progname --help --mode=$opt_mode' for more information."
+  }
+
+
+  # Bail if the options were screwed
+  $exit_cmd $EXIT_FAILURE
+}
+
+
+
+
+## ----------- ##
+##    Main.    ##
+## ----------- ##
+
+# func_lalib_p file
+# True iff FILE is a libtool `.la' library or `.lo' object file.
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_lalib_p ()
+{
+    test -f "$1" &&
+      $SED -e 4q "$1" 2>/dev/null \
+        | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
+# func_lalib_unsafe_p file
+# True iff FILE is a libtool `.la' library or `.lo' object file.
+# This function implements the same check as func_lalib_p without
+# resorting to external programs.  To this end, it redirects stdin and
+# closes it afterwards, without saving the original file descriptor.
+# As a safety measure, use it only where a negative result would be
+# fatal anyway.  Works if `file' does not exist.
+func_lalib_unsafe_p ()
+{
+    lalib_p=no
+    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
+	for lalib_p_l in 1 2 3 4
+	do
+	    read lalib_p_line
+	    case "$lalib_p_line" in
+		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
+	    esac
+	done
+	exec 0<&5 5<&-
+    fi
+    test "$lalib_p" = yes
+}
+
+# func_ltwrapper_script_p file
+# True iff FILE is a libtool wrapper script
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_script_p ()
+{
+    func_lalib_p "$1"
+}
+
+# func_ltwrapper_executable_p file
+# True iff FILE is a libtool wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_executable_p ()
+{
+    func_ltwrapper_exec_suffix=
+    case $1 in
+    *.exe) ;;
+    *) func_ltwrapper_exec_suffix=.exe ;;
+    esac
+    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
+}
+
+# func_ltwrapper_scriptname file
+# Assumes file is an ltwrapper_executable
+# uses $file to determine the appropriate filename for a
+# temporary ltwrapper_script.
+func_ltwrapper_scriptname ()
+{
+    func_dirname_and_basename "$1" "" "."
+    func_stripname '' '.exe' "$func_basename_result"
+    func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
+}
+
+# func_ltwrapper_p file
+# True iff FILE is a libtool wrapper script or wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_p ()
+{
+    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
+}
+
+
+# func_execute_cmds commands fail_cmd
+# Execute tilde-delimited COMMANDS.
+# If FAIL_CMD is given, eval that upon failure.
+# FAIL_CMD may read-access the current command in variable CMD!
+func_execute_cmds ()
+{
+    $opt_debug
+    save_ifs=$IFS; IFS='~'
+    for cmd in $1; do
+      IFS=$save_ifs
+      eval cmd=\"$cmd\"
+      func_show_eval "$cmd" "${2-:}"
+    done
+    IFS=$save_ifs
+}
+
+
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)!  Also, sourcing
+# `FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+    $opt_debug
+    case $1 in
+    */* | *\\*)	. "$1" ;;
+    *)		. "./$1" ;;
+    esac
+}
+
+
+# func_resolve_sysroot PATH
+# Replace a leading = in PATH with a sysroot.  Store the result into
+# func_resolve_sysroot_result
+func_resolve_sysroot ()
+{
+  func_resolve_sysroot_result=$1
+  case $func_resolve_sysroot_result in
+  =*)
+    func_stripname '=' '' "$func_resolve_sysroot_result"
+    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
+    ;;
+  esac
+}
+
+# func_replace_sysroot PATH
+# If PATH begins with the sysroot, replace it with = and
+# store the result into func_replace_sysroot_result.
+func_replace_sysroot ()
+{
+  case "$lt_sysroot:$1" in
+  ?*:"$lt_sysroot"*)
+    func_stripname "$lt_sysroot" '' "$1"
+    func_replace_sysroot_result="=$func_stripname_result"
+    ;;
+  *)
+    # Including no sysroot.
+    func_replace_sysroot_result=$1
+    ;;
+  esac
+}
+
+# func_infer_tag arg
+# Infer tagged configuration to use if any are available and
+# if one wasn't chosen via the "--tag" command line option.
+# Only attempt this if the compiler in the base compile
+# command doesn't match the default compiler.
+# arg is usually of the form 'gcc ...'
+func_infer_tag ()
+{
+    $opt_debug
+    if test -n "$available_tags" && test -z "$tagname"; then
+      CC_quoted=
+      for arg in $CC; do
+	func_append_quoted CC_quoted "$arg"
+      done
+      CC_expanded=`func_echo_all $CC`
+      CC_quoted_expanded=`func_echo_all $CC_quoted`
+      case $@ in
+      # Blanks in the command may have been stripped by the calling shell,
+      # but not from the CC environment variable when configure was run.
+      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
+      # Blanks at the start of $base_compile will cause this to fail
+      # if we don't check for them as well.
+      *)
+	for z in $available_tags; do
+	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
+	    # Evaluate the configuration.
+	    eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+	    CC_quoted=
+	    for arg in $CC; do
+	      # Double-quote args containing other shell metacharacters.
+	      func_append_quoted CC_quoted "$arg"
+	    done
+	    CC_expanded=`func_echo_all $CC`
+	    CC_quoted_expanded=`func_echo_all $CC_quoted`
+	    case "$@ " in
+	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
+	      # The compiler in the base compile command matches
+	      # the one in the tagged configuration.
+	      # Assume this is the tagged configuration we want.
+	      tagname=$z
+	      break
+	      ;;
+	    esac
+	  fi
+	done
+	# If $tagname still isn't set, then no tagged configuration
+	# was found and let the user know that the "--tag" command
+	# line option must be used.
+	if test -z "$tagname"; then
+	  func_echo "unable to infer tagged configuration"
+	  func_fatal_error "specify a tag with \`--tag'"
+#	else
+#	  func_verbose "using $tagname tagged configuration"
+	fi
+	;;
+      esac
+    fi
+}
+
+
+
+# func_write_libtool_object output_name pic_name nonpic_name
+# Create a libtool object file (analogous to a ".la" file),
+# but don't create it if we're doing a dry run.
+func_write_libtool_object ()
+{
+    write_libobj=${1}
+    if test "$build_libtool_libs" = yes; then
+      write_lobj=\'${2}\'
+    else
+      write_lobj=none
+    fi
+
+    if test "$build_old_libs" = yes; then
+      write_oldobj=\'${3}\'
+    else
+      write_oldobj=none
+    fi
+
+    $opt_dry_run || {
+      cat >${write_libobj}T <<EOF
+# $write_libobj - a libtool object file
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# Name of the PIC object.
+pic_object=$write_lobj
+
+# Name of the non-PIC object
+non_pic_object=$write_oldobj
+
+EOF
+      $MV "${write_libobj}T" "${write_libobj}"
+    }
+}
+
+
+##################################################
+# FILE NAME AND PATH CONVERSION HELPER FUNCTIONS #
+##################################################
+
+# func_convert_core_file_wine_to_w32 ARG
+# Helper function used by file name conversion functions when $build is *nix,
+# and $host is mingw, cygwin, or some other w32 environment. Relies on a
+# correctly configured wine environment available, with the winepath program
+# in $build's $PATH.
+#
+# ARG is the $build file name to be converted to w32 format.
+# Result is available in $func_convert_core_file_wine_to_w32_result, and will
+# be empty on error (or when ARG is empty)
+func_convert_core_file_wine_to_w32 ()
+{
+  $opt_debug
+  func_convert_core_file_wine_to_w32_result="$1"
+  if test -n "$1"; then
+    # Unfortunately, winepath does not exit with a non-zero error code, so we
+    # are forced to check the contents of stdout. On the other hand, if the
+    # command is not found, the shell will set an exit code of 127 and print
+    # *an error message* to stdout. So we must check for both error code of
+    # zero AND non-empty stdout, which explains the odd construction:
+    func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
+    if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then
+      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
+        $SED -e "$lt_sed_naive_backslashify"`
+    else
+      func_convert_core_file_wine_to_w32_result=
+    fi
+  fi
+}
+# end: func_convert_core_file_wine_to_w32
+
+
+# func_convert_core_path_wine_to_w32 ARG
+# Helper function used by path conversion functions when $build is *nix, and
+# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
+# configured wine environment available, with the winepath program in $build's
+# $PATH. Assumes ARG has no leading or trailing path separator characters.
+#
+# ARG is path to be converted from $build format to win32.
+# Result is available in $func_convert_core_path_wine_to_w32_result.
+# Unconvertible file (directory) names in ARG are skipped; if no directory names
+# are convertible, then the result may be empty.
+func_convert_core_path_wine_to_w32 ()
+{
+  $opt_debug
+  # unfortunately, winepath doesn't convert paths, only file names
+  func_convert_core_path_wine_to_w32_result=""
+  if test -n "$1"; then
+    oldIFS=$IFS
+    IFS=:
+    for func_convert_core_path_wine_to_w32_f in $1; do
+      IFS=$oldIFS
+      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
+      if test -n "$func_convert_core_file_wine_to_w32_result" ; then
+        if test -z "$func_convert_core_path_wine_to_w32_result"; then
+          func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result"
+        else
+          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
+        fi
+      fi
+    done
+    IFS=$oldIFS
+  fi
+}
+# end: func_convert_core_path_wine_to_w32
+
+
+# func_cygpath ARGS...
+# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
+# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
+# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
+# (2), returns the Cygwin file name or path in func_cygpath_result (input
+# file name or path is assumed to be in w32 format, as previously converted
+# from $build's *nix or MSYS format). In case (3), returns the w32 file name
+# or path in func_cygpath_result (input file name or path is assumed to be in
+# Cygwin format). Returns an empty string on error.
+#
+# ARGS are passed to cygpath, with the last one being the file name or path to
+# be converted.
+#
+# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
+# environment variable; do not put it in $PATH.
+func_cygpath ()
+{
+  $opt_debug
+  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
+    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
+    if test "$?" -ne 0; then
+      # on failure, ensure result is empty
+      func_cygpath_result=
+    fi
+  else
+    func_cygpath_result=
+    func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'"
+  fi
+}
+#end: func_cygpath
+
+
+# func_convert_core_msys_to_w32 ARG
+# Convert file name or path ARG from MSYS format to w32 format.  Return
+# result in func_convert_core_msys_to_w32_result.
+func_convert_core_msys_to_w32 ()
+{
+  $opt_debug
+  # awkward: cmd appends spaces to result
+  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
+    $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
+}
+#end: func_convert_core_msys_to_w32
+
+
+# func_convert_file_check ARG1 ARG2
+# Verify that ARG1 (a file name in $build format) was converted to $host
+# format in ARG2. Otherwise, emit an error message, but continue (resetting
+# func_to_host_file_result to ARG1).
+func_convert_file_check ()
+{
+  $opt_debug
+  if test -z "$2" && test -n "$1" ; then
+    func_error "Could not determine host file name corresponding to"
+    func_error "  \`$1'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback:
+    func_to_host_file_result="$1"
+  fi
+}
+# end func_convert_file_check
+
+
+# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
+# Verify that FROM_PATH (a path in $build format) was converted to $host
+# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
+# func_to_host_file_result to a simplistic fallback value (see below).
+func_convert_path_check ()
+{
+  $opt_debug
+  if test -z "$4" && test -n "$3"; then
+    func_error "Could not determine the host path corresponding to"
+    func_error "  \`$3'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback.  This is a deliberately simplistic "conversion" and
+    # should not be "improved".  See libtool.info.
+    if test "x$1" != "x$2"; then
+      lt_replace_pathsep_chars="s|$1|$2|g"
+      func_to_host_path_result=`echo "$3" |
+        $SED -e "$lt_replace_pathsep_chars"`
+    else
+      func_to_host_path_result="$3"
+    fi
+  fi
+}
+# end func_convert_path_check
+
+
+# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
+# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
+# and appending REPL if ORIG matches BACKPAT.
+func_convert_path_front_back_pathsep ()
+{
+  $opt_debug
+  case $4 in
+  $1 ) func_to_host_path_result="$3$func_to_host_path_result"
+    ;;
+  esac
+  case $4 in
+  $2 ) func_append func_to_host_path_result "$3"
+    ;;
+  esac
+}
+# end func_convert_path_front_back_pathsep
+
+
+##################################################
+# $build to $host FILE NAME CONVERSION FUNCTIONS #
+##################################################
+# invoked via `$to_host_file_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# Result will be available in $func_to_host_file_result.
+
+
+# func_to_host_file ARG
+# Converts the file name ARG from $build format to $host format. Return result
+# in func_to_host_file_result.
+func_to_host_file ()
+{
+  $opt_debug
+  $to_host_file_cmd "$1"
+}
+# end func_to_host_file
+
+
+# func_to_tool_file ARG LAZY
+# converts the file name ARG from $build format to toolchain format. Return
+# result in func_to_tool_file_result.  If the conversion in use is listed
+# in (the comma separated) LAZY, no conversion takes place.
+func_to_tool_file ()
+{
+  $opt_debug
+  case ,$2, in
+    *,"$to_tool_file_cmd",*)
+      func_to_tool_file_result=$1
+      ;;
+    *)
+      $to_tool_file_cmd "$1"
+      func_to_tool_file_result=$func_to_host_file_result
+      ;;
+  esac
+}
+# end func_to_tool_file
+
+
+# func_convert_file_noop ARG
+# Copy ARG to func_to_host_file_result.
+func_convert_file_noop ()
+{
+  func_to_host_file_result="$1"
+}
+# end func_convert_file_noop
+
+
+# func_convert_file_msys_to_w32 ARG
+# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_file_result.
+func_convert_file_msys_to_w32 ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_to_host_file_result="$func_convert_core_msys_to_w32_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_w32
+
+
+# func_convert_file_cygwin_to_w32 ARG
+# Convert file name ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_file_cygwin_to_w32 ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
+    # LT_CYGPATH in this case.
+    func_to_host_file_result=`cygpath -m "$1"`
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_cygwin_to_w32
+
+
+# func_convert_file_nix_to_w32 ARG
+# Convert file name ARG from *nix to w32 format.  Requires a wine environment
+# and a working winepath. Returns result in func_to_host_file_result.
+func_convert_file_nix_to_w32 ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    func_convert_core_file_wine_to_w32 "$1"
+    func_to_host_file_result="$func_convert_core_file_wine_to_w32_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_w32
+
+
+# func_convert_file_msys_to_cygwin ARG
+# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_file_msys_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_msys_to_w32_result"
+    func_to_host_file_result="$func_cygpath_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_cygwin
+
+
+# func_convert_file_nix_to_cygwin ARG
+# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
+# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
+# in func_to_host_file_result.
+func_convert_file_nix_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_file_result="$1"
+  if test -n "$1"; then
+    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
+    func_convert_core_file_wine_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
+    func_to_host_file_result="$func_cygpath_result"
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_cygwin
+
+
+#############################################
+# $build to $host PATH CONVERSION FUNCTIONS #
+#############################################
+# invoked via `$to_host_path_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# The result will be available in $func_to_host_path_result.
+#
+# Path separators are also converted from $build format to $host format.  If
+# ARG begins or ends with a path separator character, it is preserved (but
+# converted to $host format) on output.
+#
+# All path conversion functions are named using the following convention:
+#   file name conversion function    : func_convert_file_X_to_Y ()
+#   path conversion function         : func_convert_path_X_to_Y ()
+# where, for any given $build/$host combination the 'X_to_Y' value is the
+# same.  If conversion functions are added for new $build/$host combinations,
+# the two new functions must follow this pattern, or func_init_to_host_path_cmd
+# will break.
+
+
+# func_init_to_host_path_cmd
+# Ensures that function "pointer" variable $to_host_path_cmd is set to the
+# appropriate value, based on the value of $to_host_file_cmd.
+to_host_path_cmd=
+func_init_to_host_path_cmd ()
+{
+  $opt_debug
+  if test -z "$to_host_path_cmd"; then
+    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
+    to_host_path_cmd="func_convert_path_${func_stripname_result}"
+  fi
+}
+
+
+# func_to_host_path ARG
+# Converts the path ARG from $build format to $host format. Return result
+# in func_to_host_path_result.
+func_to_host_path ()
+{
+  $opt_debug
+  func_init_to_host_path_cmd
+  $to_host_path_cmd "$1"
+}
+# end func_to_host_path
+
+
+# func_convert_path_noop ARG
+# Copy ARG to func_to_host_path_result.
+func_convert_path_noop ()
+{
+  func_to_host_path_result="$1"
+}
+# end func_convert_path_noop
+
+
+# func_convert_path_msys_to_w32 ARG
+# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_path_result.
+func_convert_path_msys_to_w32 ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from ARG.  MSYS
+    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
+    # and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result="$func_convert_core_msys_to_w32_result"
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_msys_to_w32
+
+
+# func_convert_path_cygwin_to_w32 ARG
+# Convert path ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_path_cygwin_to_w32 ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_cygwin_to_w32
+
+
+# func_convert_path_nix_to_w32 ARG
+# Convert path ARG from *nix to w32 format.  Requires a wine environment and
+# a working winepath.  Returns result in func_to_host_file_result.
+func_convert_path_nix_to_w32 ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result="$func_convert_core_path_wine_to_w32_result"
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_nix_to_w32
+
+
+# func_convert_path_msys_to_cygwin ARG
+# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_path_msys_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
+    func_to_host_path_result="$func_cygpath_result"
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_msys_to_cygwin
+
+
+# func_convert_path_nix_to_cygwin ARG
+# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
+# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
+# func_to_host_file_result.
+func_convert_path_nix_to_cygwin ()
+{
+  $opt_debug
+  func_to_host_path_result="$1"
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from
+    # ARG. msys behavior is inconsistent here, cygpath turns them
+    # into '.;' and ';.', and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
+    func_to_host_path_result="$func_cygpath_result"
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_nix_to_cygwin
+
+
+# func_mode_compile arg...
+func_mode_compile ()
+{
+    $opt_debug
+    # Get the compilation command and the source file.
+    base_compile=
+    srcfile="$nonopt"  #  always keep a non-empty value in "srcfile"
+    suppress_opt=yes
+    suppress_output=
+    arg_mode=normal
+    libobj=
+    later=
+    pie_flag=
+
+    for arg
+    do
+      case $arg_mode in
+      arg  )
+	# do not "continue".  Instead, add this to base_compile
+	lastarg="$arg"
+	arg_mode=normal
+	;;
+
+      target )
+	libobj="$arg"
+	arg_mode=normal
+	continue
+	;;
+
+      normal )
+	# Accept any command-line options.
+	case $arg in
+	-o)
+	  test -n "$libobj" && \
+	    func_fatal_error "you cannot specify \`-o' more than once"
+	  arg_mode=target
+	  continue
+	  ;;
+
+	-pie | -fpie | -fPIE)
+          func_append pie_flag " $arg"
+	  continue
+	  ;;
+
+	-shared | -static | -prefer-pic | -prefer-non-pic)
+	  func_append later " $arg"
+	  continue
+	  ;;
+
+	-no-suppress)
+	  suppress_opt=no
+	  continue
+	  ;;
+
+	-Xcompiler)
+	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
+	  continue      #  The current "srcfile" will either be retained or
+	  ;;            #  replaced later.  I would guess that would be a bug.
+
+	-Wc,*)
+	  func_stripname '-Wc,' '' "$arg"
+	  args=$func_stripname_result
+	  lastarg=
+	  save_ifs="$IFS"; IFS=','
+	  for arg in $args; do
+	    IFS="$save_ifs"
+	    func_append_quoted lastarg "$arg"
+	  done
+	  IFS="$save_ifs"
+	  func_stripname ' ' '' "$lastarg"
+	  lastarg=$func_stripname_result
+
+	  # Add the arguments to base_compile.
+	  func_append base_compile " $lastarg"
+	  continue
+	  ;;
+
+	*)
+	  # Accept the current argument as the source file.
+	  # The previous "srcfile" becomes the current argument.
+	  #
+	  lastarg="$srcfile"
+	  srcfile="$arg"
+	  ;;
+	esac  #  case $arg
+	;;
+      esac    #  case $arg_mode
+
+      # Aesthetically quote the previous argument.
+      func_append_quoted base_compile "$lastarg"
+    done # for arg
+
+    case $arg_mode in
+    arg)
+      func_fatal_error "you must specify an argument for -Xcompile"
+      ;;
+    target)
+      func_fatal_error "you must specify a target with \`-o'"
+      ;;
+    *)
+      # Get the name of the library object.
+      test -z "$libobj" && {
+	func_basename "$srcfile"
+	libobj="$func_basename_result"
+      }
+      ;;
+    esac
+
+    # Recognize several different file suffixes.
+    # If the user specifies -o file.o, it is replaced with file.lo
+    case $libobj in
+    *.[cCFSifmso] | \
+    *.ada | *.adb | *.ads | *.asm | \
+    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
+    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
+      func_xform "$libobj"
+      libobj=$func_xform_result
+      ;;
+    esac
+
+    case $libobj in
+    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
+    *)
+      func_fatal_error "cannot determine name of library object from \`$libobj'"
+      ;;
+    esac
+
+    func_infer_tag $base_compile
+
+    for arg in $later; do
+      case $arg in
+      -shared)
+	test "$build_libtool_libs" != yes && \
+	  func_fatal_configuration "can not build a shared library"
+	build_old_libs=no
+	continue
+	;;
+
+      -static)
+	build_libtool_libs=no
+	build_old_libs=yes
+	continue
+	;;
+
+      -prefer-pic)
+	pic_mode=yes
+	continue
+	;;
+
+      -prefer-non-pic)
+	pic_mode=no
+	continue
+	;;
+      esac
+    done
+
+    func_quote_for_eval "$libobj"
+    test "X$libobj" != "X$func_quote_for_eval_result" \
+      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
+      && func_warning "libobj name \`$libobj' may not contain shell special characters."
+    func_dirname_and_basename "$obj" "/" ""
+    objname="$func_basename_result"
+    xdir="$func_dirname_result"
+    lobj=${xdir}$objdir/$objname
+
+    test -z "$base_compile" && \
+      func_fatal_help "you must specify a compilation command"
+
+    # Delete any leftover library objects.
+    if test "$build_old_libs" = yes; then
+      removelist="$obj $lobj $libobj ${libobj}T"
+    else
+      removelist="$lobj $libobj ${libobj}T"
+    fi
+
+    # On Cygwin there's no "real" PIC flag so we must build both object types
+    case $host_os in
+    cygwin* | mingw* | pw32* | os2* | cegcc*)
+      pic_mode=default
+      ;;
+    esac
+    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
+      # non-PIC code in shared libraries is not supported
+      pic_mode=default
+    fi
+
+    # Calculate the filename of the output object if compiler does
+    # not support -o with -c
+    if test "$compiler_c_o" = no; then
+      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext}
+      lockfile="$output_obj.lock"
+    else
+      output_obj=
+      need_locks=no
+      lockfile=
+    fi
+
+    # Lock this critical section if it is needed
+    # We use this script file to make the link, it avoids creating a new file
+    if test "$need_locks" = yes; then
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    elif test "$need_locks" = warn; then
+      if test -f "$lockfile"; then
+	$ECHO "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+      func_append removelist " $output_obj"
+      $ECHO "$srcfile" > "$lockfile"
+    fi
+
+    $opt_dry_run || $RM $removelist
+    func_append removelist " $lockfile"
+    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
+
+    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
+    srcfile=$func_to_tool_file_result
+    func_quote_for_eval "$srcfile"
+    qsrcfile=$func_quote_for_eval_result
+
+    # Only build a PIC object if we are building libtool libraries.
+    if test "$build_libtool_libs" = yes; then
+      # Without this assignment, base_compile gets emptied.
+      fbsd_hideous_sh_bug=$base_compile
+
+      if test "$pic_mode" != no; then
+	command="$base_compile $qsrcfile $pic_flag"
+      else
+	# Don't build PIC code
+	command="$base_compile $qsrcfile"
+      fi
+
+      func_mkdir_p "$xdir$objdir"
+
+      if test -z "$output_obj"; then
+	# Place PIC objects in $objdir
+	func_append command " -o $lobj"
+      fi
+
+      func_show_eval_locale "$command"	\
+          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
+
+      if test "$need_locks" = warn &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed, then go on to compile the next one
+      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
+	func_show_eval '$MV "$output_obj" "$lobj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+
+      # Allow error messages only from the first compilation.
+      if test "$suppress_opt" = yes; then
+	suppress_output=' >/dev/null 2>&1'
+      fi
+    fi
+
+    # Only build a position-dependent object if we build old libraries.
+    if test "$build_old_libs" = yes; then
+      if test "$pic_mode" != yes; then
+	# Don't build PIC code
+	command="$base_compile $qsrcfile$pie_flag"
+      else
+	command="$base_compile $qsrcfile $pic_flag"
+      fi
+      if test "$compiler_c_o" = yes; then
+	func_append command " -o $obj"
+      fi
+
+      # Suppress compiler output if we already did a PIC compilation.
+      func_append command "$suppress_output"
+      func_show_eval_locale "$command" \
+        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
+
+      if test "$need_locks" = warn &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support \`-c' and \`-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed
+      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
+	func_show_eval '$MV "$output_obj" "$obj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+    fi
+
+    $opt_dry_run || {
+      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
+
+      # Unlock the critical section if it was locked
+      if test "$need_locks" != no; then
+	removelist=$lockfile
+        $RM "$lockfile"
+      fi
+    }
+
+    exit $EXIT_SUCCESS
+}
+
+$opt_help || {
+  test "$opt_mode" = compile && func_mode_compile ${1+"$@"}
+}
+
+func_mode_help ()
+{
+    # We need to display help for each of the modes.
+    case $opt_mode in
+      "")
+        # Generic help is extracted from the usage comments
+        # at the start of this file.
+        func_help
+        ;;
+
+      clean)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      compile)
+      $ECHO \
+"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
+  -no-suppress      do not suppress compiler output for multiple passes
+  -prefer-pic       try to build PIC objects only
+  -prefer-non-pic   try to build non-PIC objects only
+  -shared           do not build a \`.o' file suitable for static linking
+  -static           only build a \`.o' file suitable for static linking
+  -Wc,FLAG          pass FLAG directly to the compiler
+
+COMPILE-COMMAND is a command to be used in creating a \`standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix \`.c' with the
+library object suffix, \`.lo'."
+        ;;
+
+      execute)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+  -dlopen FILE      add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to \`-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+        ;;
+
+      finish)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges.  Use
+the \`--dry-run' option if you just want to see what would be executed."
+        ;;
+
+      install)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command.  The first component should be
+either the \`install' or \`cp' program.
+
+The following components of INSTALL-COMMAND are treated specially:
+
+  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+        ;;
+
+      link)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+  -all-static       do not do any dynamic linking at all
+  -avoid-version    do not add a version suffix if possible
+  -bindir BINDIR    specify path to binaries directory (for systems where
+                    libraries must be found in the PATH setting at runtime)
+  -dlopen FILE      \`-dlpreopen' FILE if it cannot be dlopened at runtime
+  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
+  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+  -export-symbols SYMFILE
+                    try to export only the symbols listed in SYMFILE
+  -export-symbols-regex REGEX
+                    try to export only the symbols matching REGEX
+  -LLIBDIR          search LIBDIR for required installed libraries
+  -lNAME            OUTPUT-FILE requires the installed library libNAME
+  -module           build a library that can dlopened
+  -no-fast-install  disable the fast-install mode
+  -no-install       link a not-installable executable
+  -no-undefined     declare that a library does not refer to external symbols
+  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
+  -objectlist FILE  Use a list of object files found in FILE to specify objects
+  -precious-files-regex REGEX
+                    don't remove output files matching REGEX
+  -release RELEASE  specify package release information
+  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
+  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
+  -shared           only do dynamic linking of libtool libraries
+  -shrext SUFFIX    override the standard shared library file extension
+  -static           do not do any dynamic linking of uninstalled libtool libraries
+  -static-libtool-libs
+                    do not do any dynamic linking of libtool libraries
+  -version-info CURRENT[:REVISION[:AGE]]
+                    specify library version info [each variable defaults to 0]
+  -weak LIBNAME     declare that the target provides the LIBNAME interface
+  -Wc,FLAG
+  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
+  -Wl,FLAG
+  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
+  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)
+
+All other options (arguments beginning with \`-') are ignored.
+
+Every other argument is treated as a filename.  Files ending in \`.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in \`.la', then a libtool library is created,
+only library objects (\`.lo' files) may be specified, and \`-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in \`.a' or \`.lib', then a standard library is created
+using \`ar' and \`ranlib', or on Windows using \`lib'.
+
+If OUTPUT-FILE ends in \`.lo' or \`.${objext}', then a reloadable object file
+is created, otherwise an executable program is created."
+        ;;
+
+      uninstall)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically \`/bin/rm').  RM-OPTIONS are options (such as \`-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      *)
+        func_fatal_help "invalid operation mode \`$opt_mode'"
+        ;;
+    esac
+
+    echo
+    $ECHO "Try \`$progname --help' for more information about other modes."
+}
+
+# Now that we've collected a possible --mode arg, show help if necessary
+if $opt_help; then
+  if test "$opt_help" = :; then
+    func_mode_help
+  else
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	func_mode_help
+      done
+    } | sed -n '1p; 2,$s/^Usage:/  or: /p'
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	echo
+	func_mode_help
+      done
+    } |
+    sed '1d
+      /^When reporting/,/^Report/{
+	H
+	d
+      }
+      $x
+      /information about other modes/d
+      /more detailed .*MODE/d
+      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
+  fi
+  exit $?
+fi
+
+
+# func_mode_execute arg...
+func_mode_execute ()
+{
+    $opt_debug
+    # The first argument is the command name.
+    cmd="$nonopt"
+    test -z "$cmd" && \
+      func_fatal_help "you must specify a COMMAND"
+
+    # Handle -dlopen flags immediately.
+    for file in $opt_dlopen; do
+      test -f "$file" \
+	|| func_fatal_help "\`$file' is not a file"
+
+      dir=
+      case $file in
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "\`$lib' is not a valid libtool archive"
+
+	# Read the libtool library.
+	dlname=
+	library_names=
+	func_source "$file"
+
+	# Skip this library if it cannot be dlopened.
+	if test -z "$dlname"; then
+	  # Warn if it was a shared library.
+	  test -n "$library_names" && \
+	    func_warning "\`$file' was not linked with \`-export-dynamic'"
+	  continue
+	fi
+
+	func_dirname "$file" "" "."
+	dir="$func_dirname_result"
+
+	if test -f "$dir/$objdir/$dlname"; then
+	  func_append dir "/$objdir"
+	else
+	  if test ! -f "$dir/$dlname"; then
+	    func_fatal_error "cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'"
+	  fi
+	fi
+	;;
+
+      *.lo)
+	# Just add the directory containing the .lo file.
+	func_dirname "$file" "" "."
+	dir="$func_dirname_result"
+	;;
+
+      *)
+	func_warning "\`-dlopen' is ignored for non-libtool libraries and objects"
+	continue
+	;;
+      esac
+
+      # Get the absolute pathname.
+      absdir=`cd "$dir" && pwd`
+      test -n "$absdir" && dir="$absdir"
+
+      # Now add the directory to shlibpath_var.
+      if eval "test -z \"\$$shlibpath_var\""; then
+	eval "$shlibpath_var=\"\$dir\""
+      else
+	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+      fi
+    done
+
+    # This variable tells wrapper scripts just to set shlibpath_var
+    # rather than running their programs.
+    libtool_execute_magic="$magic"
+
+    # Check if any of the arguments is a wrapper script.
+    args=
+    for file
+    do
+      case $file in
+      -* | *.la | *.lo ) ;;
+      *)
+	# Do a test to see if this is really a libtool program.
+	if func_ltwrapper_script_p "$file"; then
+	  func_source "$file"
+	  # Transform arg to wrapped name.
+	  file="$progdir/$program"
+	elif func_ltwrapper_executable_p "$file"; then
+	  func_ltwrapper_scriptname "$file"
+	  func_source "$func_ltwrapper_scriptname_result"
+	  # Transform arg to wrapped name.
+	  file="$progdir/$program"
+	fi
+	;;
+      esac
+      # Quote arguments (to preserve shell metacharacters).
+      func_append_quoted args "$file"
+    done
+
+    if test "X$opt_dry_run" = Xfalse; then
+      if test -n "$shlibpath_var"; then
+	# Export the shlibpath_var.
+	eval "export $shlibpath_var"
+      fi
+
+      # Restore saved environment variables
+      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+      do
+	eval "if test \"\${save_$lt_var+set}\" = set; then
+                $lt_var=\$save_$lt_var; export $lt_var
+	      else
+		$lt_unset $lt_var
+	      fi"
+      done
+
+      # Now prepare to actually exec the command.
+      exec_cmd="\$cmd$args"
+    else
+      # Display what would be done.
+      if test -n "$shlibpath_var"; then
+	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+	echo "export $shlibpath_var"
+      fi
+      $ECHO "$cmd$args"
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test "$opt_mode" = execute && func_mode_execute ${1+"$@"}
+
+
+# func_mode_finish arg...
+func_mode_finish ()
+{
+    $opt_debug
+    libs=
+    libdirs=
+    admincmds=
+
+    for opt in "$nonopt" ${1+"$@"}
+    do
+      if test -d "$opt"; then
+	func_append libdirs " $opt"
+
+      elif test -f "$opt"; then
+	if func_lalib_unsafe_p "$opt"; then
+	  func_append libs " $opt"
+	else
+	  func_warning "\`$opt' is not a valid libtool archive"
+	fi
+
+      else
+	func_fatal_error "invalid argument \`$opt'"
+      fi
+    done
+
+    if test -n "$libs"; then
+      if test -n "$lt_sysroot"; then
+        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
+        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
+      else
+        sysroot_cmd=
+      fi
+
+      # Remove sysroot references
+      if $opt_dry_run; then
+        for lib in $libs; do
+          echo "removing references to $lt_sysroot and \`=' prefixes from $lib"
+        done
+      else
+        tmpdir=`func_mktempdir`
+        for lib in $libs; do
+	  sed -e "${sysroot_cmd} s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+	    > $tmpdir/tmp-la
+	  mv -f $tmpdir/tmp-la $lib
+	done
+        ${RM}r "$tmpdir"
+      fi
+    fi
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      for libdir in $libdirs; do
+	if test -n "$finish_cmds"; then
+	  # Do each command in the finish commands.
+	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
+'"$cmd"'"'
+	fi
+	if test -n "$finish_eval"; then
+	  # Do the single finish_eval.
+	  eval cmds=\"$finish_eval\"
+	  $opt_dry_run || eval "$cmds" || func_append admincmds "
+       $cmds"
+	fi
+      done
+    fi
+
+    # Exit here if they wanted silent mode.
+    $opt_silent && exit $EXIT_SUCCESS
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      echo "----------------------------------------------------------------------"
+      echo "Libraries have been installed in:"
+      for libdir in $libdirs; do
+	$ECHO "   $libdir"
+      done
+      echo
+      echo "If you ever happen to want to link against installed libraries"
+      echo "in a given directory, LIBDIR, you must either use libtool, and"
+      echo "specify the full pathname of the library, or use the \`-LLIBDIR'"
+      echo "flag during linking and do at least one of the following:"
+      if test -n "$shlibpath_var"; then
+	echo "   - add LIBDIR to the \`$shlibpath_var' environment variable"
+	echo "     during execution"
+      fi
+      if test -n "$runpath_var"; then
+	echo "   - add LIBDIR to the \`$runpath_var' environment variable"
+	echo "     during linking"
+      fi
+      if test -n "$hardcode_libdir_flag_spec"; then
+	libdir=LIBDIR
+	eval flag=\"$hardcode_libdir_flag_spec\"
+
+	$ECHO "   - use the \`$flag' linker flag"
+      fi
+      if test -n "$admincmds"; then
+	$ECHO "   - have your system administrator run these commands:$admincmds"
+      fi
+      if test -f /etc/ld.so.conf; then
+	echo "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
+      fi
+      echo
+
+      echo "See any operating system documentation about shared libraries for"
+      case $host in
+	solaris2.[6789]|solaris2.1[0-9])
+	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
+	  echo "pages."
+	  ;;
+	*)
+	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
+	  ;;
+      esac
+      echo "----------------------------------------------------------------------"
+    fi
+    exit $EXIT_SUCCESS
+}
+
+test "$opt_mode" = finish && func_mode_finish ${1+"$@"}
+
+
+# func_mode_install arg...
+func_mode_install ()
+{
+    $opt_debug
+    # There may be an optional sh(1) argument at the beginning of
+    # install_prog (especially on Windows NT).
+    if test "$nonopt" = "$SHELL" || test "$nonopt" = /bin/sh ||
+       # Allow the use of GNU shtool's install command.
+       case $nonopt in *shtool*) :;; *) false;; esac; then
+      # Aesthetically quote it.
+      func_quote_for_eval "$nonopt"
+      install_prog="$func_quote_for_eval_result "
+      arg=$1
+      shift
+    else
+      install_prog=
+      arg=$nonopt
+    fi
+
+    # The real first argument should be the name of the installation program.
+    # Aesthetically quote it.
+    func_quote_for_eval "$arg"
+    func_append install_prog "$func_quote_for_eval_result"
+    install_shared_prog=$install_prog
+    case " $install_prog " in
+      *[\\\ /]cp\ *) install_cp=: ;;
+      *) install_cp=false ;;
+    esac
+
+    # We need to accept at least all the BSD install flags.
+    dest=
+    files=
+    opts=
+    prev=
+    install_type=
+    isdir=no
+    stripme=
+    no_mode=:
+    for arg
+    do
+      arg2=
+      if test -n "$dest"; then
+	func_append files " $dest"
+	dest=$arg
+	continue
+      fi
+
+      case $arg in
+      -d) isdir=yes ;;
+      -f)
+	if $install_cp; then :; else
+	  prev=$arg
+	fi
+	;;
+      -g | -m | -o)
+	prev=$arg
+	;;
+      -s)
+	stripme=" -s"
+	continue
+	;;
+      -*)
+	;;
+      *)
+	# If the previous option needed an argument, then skip it.
+	if test -n "$prev"; then
+	  if test "x$prev" = x-m && test -n "$install_override_mode"; then
+	    arg2=$install_override_mode
+	    no_mode=false
+	  fi
+	  prev=
+	else
+	  dest=$arg
+	  continue
+	fi
+	;;
+      esac
+
+      # Aesthetically quote the argument.
+      func_quote_for_eval "$arg"
+      func_append install_prog " $func_quote_for_eval_result"
+      if test -n "$arg2"; then
+	func_quote_for_eval "$arg2"
+      fi
+      func_append install_shared_prog " $func_quote_for_eval_result"
+    done
+
+    test -z "$install_prog" && \
+      func_fatal_help "you must specify an install program"
+
+    test -n "$prev" && \
+      func_fatal_help "the \`$prev' option requires an argument"
+
+    if test -n "$install_override_mode" && $no_mode; then
+      if $install_cp; then :; else
+	func_quote_for_eval "$install_override_mode"
+	func_append install_shared_prog " -m $func_quote_for_eval_result"
+      fi
+    fi
+
+    if test -z "$files"; then
+      if test -z "$dest"; then
+	func_fatal_help "no file or destination specified"
+      else
+	func_fatal_help "you must specify a destination"
+      fi
+    fi
+
+    # Strip any trailing slash from the destination.
+    func_stripname '' '/' "$dest"
+    dest=$func_stripname_result
+
+    # Check to see that the destination is a directory.
+    test -d "$dest" && isdir=yes
+    if test "$isdir" = yes; then
+      destdir="$dest"
+      destname=
+    else
+      func_dirname_and_basename "$dest" "" "."
+      destdir="$func_dirname_result"
+      destname="$func_basename_result"
+
+      # Not a directory, so check to see that there is only one file specified.
+      set dummy $files; shift
+      test "$#" -gt 1 && \
+	func_fatal_help "\`$dest' is not a directory"
+    fi
+    case $destdir in
+    [\\/]* | [A-Za-z]:[\\/]*) ;;
+    *)
+      for file in $files; do
+	case $file in
+	*.lo) ;;
+	*)
+	  func_fatal_help "\`$destdir' must be an absolute directory name"
+	  ;;
+	esac
+      done
+      ;;
+    esac
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic="$magic"
+
+    staticlibs=
+    future_libdirs=
+    current_libdirs=
+    for file in $files; do
+
+      # Do each installation.
+      case $file in
+      *.$libext)
+	# Do the static libraries later.
+	func_append staticlibs " $file"
+	;;
+
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "\`$file' is not a valid libtool archive"
+
+	library_names=
+	old_library=
+	relink_command=
+	func_source "$file"
+
+	# Add the libdir to current_libdirs if it is the destination.
+	if test "X$destdir" = "X$libdir"; then
+	  case "$current_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append current_libdirs " $libdir" ;;
+	  esac
+	else
+	  # Note the libdir as a future libdir.
+	  case "$future_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append future_libdirs " $libdir" ;;
+	  esac
+	fi
+
+	func_dirname "$file" "/" ""
+	dir="$func_dirname_result"
+	func_append dir "$objdir"
+
+	if test -n "$relink_command"; then
+	  # Determine the prefix the user has applied to our future dir.
+	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+
+	  # Don't allow the user to place us outside of our expected
+	  # location b/c this prevents finding dependent libraries that
+	  # are installed to the same prefix.
+	  # At present, this check doesn't affect windows .dll's that
+	  # are installed into $libdir/../bin (currently, that works fine)
+	  # but it's something to keep an eye on.
+	  test "$inst_prefix_dir" = "$destdir" && \
+	    func_fatal_error "error: cannot install \`$file' to a directory not ending in $libdir"
+
+	  if test -n "$inst_prefix_dir"; then
+	    # Stick the inst_prefix_dir data into the link command.
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+	  else
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
+	  fi
+
+	  func_warning "relinking \`$file'"
+	  func_show_eval "$relink_command" \
+	    'func_fatal_error "error: relink \`$file'\'' with the above command before installing it"'
+	fi
+
+	# See the names of the shared library.
+	set dummy $library_names; shift
+	if test -n "$1"; then
+	  realname="$1"
+	  shift
+
+	  srcname="$realname"
+	  test -n "$relink_command" && srcname="$realname"T
+
+	  # Install the shared library and build the symlinks.
+	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
+	      'exit $?'
+	  tstripme="$stripme"
+	  case $host_os in
+	  cygwin* | mingw* | pw32* | cegcc*)
+	    case $realname in
+	    *.dll.a)
+	      tstripme=""
+	      ;;
+	    esac
+	    ;;
+	  esac
+	  if test -n "$tstripme" && test -n "$striplib"; then
+	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
+	  fi
+
+	  if test "$#" -gt 0; then
+	    # Delete the old symlinks, and create new ones.
+	    # Try `ln -sf' first, because the `ln' binary might depend on
+	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
+	    # so we also need to try rm && ln -s.
+	    for linkname
+	    do
+	      test "$linkname" != "$realname" \
+		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
+	    done
+	  fi
+
+	  # Do each command in the postinstall commands.
+	  lib="$destdir/$realname"
+	  func_execute_cmds "$postinstall_cmds" 'exit $?'
+	fi
+
+	# Install the pseudo-library for information purposes.
+	func_basename "$file"
+	name="$func_basename_result"
+	instname="$dir/$name"i
+	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
+
+	# Maybe install the static library, too.
+	test -n "$old_library" && func_append staticlibs " $dir/$old_library"
+	;;
+
+      *.lo)
+	# Install (i.e. copy) a libtool object.
+
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile="$destdir/$destname"
+	else
+	  func_basename "$file"
+	  destfile="$func_basename_result"
+	  destfile="$destdir/$destfile"
+	fi
+
+	# Deduce the name of the destination old-style object file.
+	case $destfile in
+	*.lo)
+	  func_lo2o "$destfile"
+	  staticdest=$func_lo2o_result
+	  ;;
+	*.$objext)
+	  staticdest="$destfile"
+	  destfile=
+	  ;;
+	*)
+	  func_fatal_help "cannot copy a libtool object to \`$destfile'"
+	  ;;
+	esac
+
+	# Install the libtool object if requested.
+	test -n "$destfile" && \
+	  func_show_eval "$install_prog $file $destfile" 'exit $?'
+
+	# Install the old object if enabled.
+	if test "$build_old_libs" = yes; then
+	  # Deduce the name of the old-style object file.
+	  func_lo2o "$file"
+	  staticobj=$func_lo2o_result
+	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
+	fi
+	exit $EXIT_SUCCESS
+	;;
+
+      *)
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile="$destdir/$destname"
+	else
+	  func_basename "$file"
+	  destfile="$func_basename_result"
+	  destfile="$destdir/$destfile"
+	fi
+
+	# If the file is missing, and there is a .exe on the end, strip it
+	# because it is most likely a libtool script we actually want to
+	# install
+	stripped_ext=""
+	case $file in
+	  *.exe)
+	    if test ! -f "$file"; then
+	      func_stripname '' '.exe' "$file"
+	      file=$func_stripname_result
+	      stripped_ext=".exe"
+	    fi
+	    ;;
+	esac
+
+	# Do a test to see if this is really a libtool program.
+	case $host in
+	*cygwin* | *mingw*)
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      wrapper=$func_ltwrapper_scriptname_result
+	    else
+	      func_stripname '' '.exe' "$file"
+	      wrapper=$func_stripname_result
+	    fi
+	    ;;
+	*)
+	    wrapper=$file
+	    ;;
+	esac
+	if func_ltwrapper_script_p "$wrapper"; then
+	  notinst_deplibs=
+	  relink_command=
+
+	  func_source "$wrapper"
+
+	  # Check the variables that should have been set.
+	  test -z "$generated_by_libtool_version" && \
+	    func_fatal_error "invalid libtool wrapper script \`$wrapper'"
+
+	  finalize=yes
+	  for lib in $notinst_deplibs; do
+	    # Check to see that each library is installed.
+	    libdir=
+	    if test -f "$lib"; then
+	      func_source "$lib"
+	    fi
+	    libfile="$libdir/"`$ECHO "$lib" | $SED 's%^.*/%%g'` ### testsuite: skip nested quoting test
+	    if test -n "$libdir" && test ! -f "$libfile"; then
+	      func_warning "\`$lib' has not been installed in \`$libdir'"
+	      finalize=no
+	    fi
+	  done
+
+	  relink_command=
+	  func_source "$wrapper"
+
+	  outputname=
+	  if test "$fast_install" = no && test -n "$relink_command"; then
+	    $opt_dry_run || {
+	      if test "$finalize" = yes; then
+	        tmpdir=`func_mktempdir`
+		func_basename "$file$stripped_ext"
+		file="$func_basename_result"
+	        outputname="$tmpdir/$file"
+	        # Replace the output file specification.
+	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
+
+	        $opt_silent || {
+	          func_quote_for_expand "$relink_command"
+		  eval "func_echo $func_quote_for_expand_result"
+	        }
+	        if eval "$relink_command"; then :
+	          else
+		  func_error "error: relink \`$file' with the above command before installing it"
+		  $opt_dry_run || ${RM}r "$tmpdir"
+		  continue
+	        fi
+	        file="$outputname"
+	      else
+	        func_warning "cannot relink \`$file'"
+	      fi
+	    }
+	  else
+	    # Install the binary that we compiled earlier.
+	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
+	  fi
+	fi
+
+	# remove .exe since cygwin /usr/bin/install will append another
+	# one anyway
+	case $install_prog,$host in
+	*/usr/bin/install*,*cygwin*)
+	  case $file:$destfile in
+	  *.exe:*.exe)
+	    # this is ok
+	    ;;
+	  *.exe:*)
+	    destfile=$destfile.exe
+	    ;;
+	  *:*.exe)
+	    func_stripname '' '.exe' "$destfile"
+	    destfile=$func_stripname_result
+	    ;;
+	  esac
+	  ;;
+	esac
+	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
+	$opt_dry_run || if test -n "$outputname"; then
+	  ${RM}r "$tmpdir"
+	fi
+	;;
+      esac
+    done
+
+    for file in $staticlibs; do
+      func_basename "$file"
+      name="$func_basename_result"
+
+      # Set up the ranlib parameters.
+      oldlib="$destdir/$name"
+      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+      tool_oldlib=$func_to_tool_file_result
+
+      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
+
+      if test -n "$stripme" && test -n "$old_striplib"; then
+	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
+      fi
+
+      # Do each command in the postinstall commands.
+      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
+    done
+
+    test -n "$future_libdirs" && \
+      func_warning "remember to run \`$progname --finish$future_libdirs'"
+
+    if test -n "$current_libdirs"; then
+      # Maybe just do a dry run.
+      $opt_dry_run && current_libdirs=" -n$current_libdirs"
+      exec_cmd='$SHELL $progpath $preserve_args --finish$current_libdirs'
+    else
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test "$opt_mode" = install && func_mode_install ${1+"$@"}
+
+
+# func_generate_dlsyms outputname originator pic_p
+# Extract symbols from dlprefiles and create ${outputname}S.o with
+# a dlpreopen symbol table.
+func_generate_dlsyms ()
+{
+    $opt_debug
+    my_outputname="$1"
+    my_originator="$2"
+    my_pic_p="${3-no}"
+    my_prefix=`$ECHO "$my_originator" | sed 's%[^a-zA-Z0-9]%_%g'`
+    my_dlsyms=
+
+    if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+      if test -n "$NM" && test -n "$global_symbol_pipe"; then
+	my_dlsyms="${my_outputname}S.c"
+      else
+	func_error "not configured to extract global symbols from dlpreopened files"
+      fi
+    fi
+
+    if test -n "$my_dlsyms"; then
+      case $my_dlsyms in
+      "") ;;
+      *.c)
+	# Discover the nlist of each of the dlfiles.
+	nlist="$output_objdir/${my_outputname}.nm"
+
+	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
+
+	# Parse the name list into a source file.
+	func_verbose "creating $output_objdir/$my_dlsyms"
+
+	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
+/* $my_dlsyms - symbol resolution table for \`$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+#if defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#endif
+
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
+/* DATA imports from DLLs on WIN32 con't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined(__osf__)
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+/* External symbol declarations for the compiler. */\
+"
+
+	if test "$dlself" = yes; then
+	  func_verbose "generating symbol list for \`$output'"
+
+	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
+
+	  # Add our own program objects to the symbol list.
+	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	  for progfile in $progfiles; do
+	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
+	    func_verbose "extracting global C symbols from \`$func_to_tool_file_result'"
+	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
+	  done
+
+	  if test -n "$exclude_expsyms"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  if test -n "$export_symbols_regex"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  # Prepare the list of exported symbols
+	  if test -z "$export_symbols"; then
+	    export_symbols="$output_objdir/$outputname.exp"
+	    $opt_dry_run || {
+	      $RM $export_symbols
+	      eval "${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+	      case $host in
+	      *cygwin* | *mingw* | *cegcc* )
+                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
+	        ;;
+	      esac
+	    }
+	  else
+	    $opt_dry_run || {
+	      eval "${SED} -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	      case $host in
+	        *cygwin* | *mingw* | *cegcc* )
+	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
+	          ;;
+	      esac
+	    }
+	  fi
+	fi
+
+	for dlprefile in $dlprefiles; do
+	  func_verbose "extracting global C symbols from \`$dlprefile'"
+	  func_basename "$dlprefile"
+	  name="$func_basename_result"
+          case $host in
+	    *cygwin* | *mingw* | *cegcc* )
+	      # if an import library, we need to obtain dlname
+	      if func_win32_import_lib_p "$dlprefile"; then
+	        func_tr_sh "$dlprefile"
+	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
+	        dlprefile_dlbasename=""
+	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+	          # Use subshell, to avoid clobbering current variable values
+	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+	          if test -n "$dlprefile_dlname" ; then
+	            func_basename "$dlprefile_dlname"
+	            dlprefile_dlbasename="$func_basename_result"
+	          else
+	            # no lafile. user explicitly requested -dlpreopen <import library>.
+	            $sharedlib_from_linklib_cmd "$dlprefile"
+	            dlprefile_dlbasename=$sharedlib_from_linklib_result
+	          fi
+	        fi
+	        $opt_dry_run || {
+	          if test -n "$dlprefile_dlbasename" ; then
+	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+	          else
+	            func_warning "Could not compute DLL name from $name"
+	            eval '$ECHO ": $name " >> "$nlist"'
+	          fi
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
+	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
+	        }
+	      else # not an import lib
+	        $opt_dry_run || {
+	          eval '$ECHO ": $name " >> "$nlist"'
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	        }
+	      fi
+	    ;;
+	    *)
+	      $opt_dry_run || {
+	        eval '$ECHO ": $name " >> "$nlist"'
+	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	      }
+	    ;;
+          esac
+	done
+
+	$opt_dry_run || {
+	  # Make sure we have at least an empty file.
+	  test -f "$nlist" || : > "$nlist"
+
+	  if test -n "$exclude_expsyms"; then
+	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+	    $MV "$nlist"T "$nlist"
+	  fi
+
+	  # Try sorting and uniquifying the output.
+	  if $GREP -v "^: " < "$nlist" |
+	      if sort -k 3 </dev/null >/dev/null 2>&1; then
+		sort -k 3
+	      else
+		sort +2
+	      fi |
+	      uniq > "$nlist"S; then
+	    :
+	  else
+	    $GREP -v "^: " < "$nlist" > "$nlist"S
+	  fi
+
+	  if test -f "$nlist"S; then
+	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
+	  else
+	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
+	  fi
+
+	  echo >> "$output_objdir/$my_dlsyms" "\
+
+/* The mapping between symbol names and symbols.  */
+typedef struct {
+  const char *name;
+  void *address;
+} lt_dlsymlist;
+extern LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[];
+LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[] =
+{\
+  { \"$my_originator\", (void *) 0 },"
+
+	  case $need_lib_prefix in
+	  no)
+	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  *)
+	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  esac
+	  echo >> "$output_objdir/$my_dlsyms" "\
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt_${my_prefix}_LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+	} # !$opt_dry_run
+
+	pic_flag_for_symtable=
+	case "$compile_command " in
+	*" -static "*) ;;
+	*)
+	  case $host in
+	  # compiling the symbol table file with pic_flag works around
+	  # a FreeBSD bug that causes programs to crash when -lm is
+	  # linked before any other PIC object.  But we must not use
+	  # pic_flag when linking with -static.  The problem exists in
+	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
+	  *-*-hpux*)
+	    pic_flag_for_symtable=" $pic_flag"  ;;
+	  *)
+	    if test "X$my_pic_p" != Xno; then
+	      pic_flag_for_symtable=" $pic_flag"
+	    fi
+	    ;;
+	  esac
+	  ;;
+	esac
+	symtab_cflags=
+	for arg in $LTCFLAGS; do
+	  case $arg in
+	  -pie | -fpie | -fPIE) ;;
+	  *) func_append symtab_cflags " $arg" ;;
+	  esac
+	done
+
+	# Now compile the dynamic symbol file.
+	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
+
+	# Clean up the generated files.
+	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T"'
+
+	# Transform the symbol file into the correct name.
+	symfileobj="$output_objdir/${my_outputname}S.$objext"
+	case $host in
+	*cygwin* | *mingw* | *cegcc* )
+	  if test -f "$output_objdir/$my_outputname.def"; then
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	  else
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  fi
+	  ;;
+	*)
+	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  ;;
+	esac
+	;;
+      *)
+	func_fatal_error "unknown suffix for \`$my_dlsyms'"
+	;;
+      esac
+    else
+      # We keep going just in case the user didn't refer to
+      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
+      # really was required.
+
+      # Nullify the symbol file.
+      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
+      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
+    fi
+}
+
+# func_win32_libid arg
+# return the library type of file 'arg'
+#
+# Need a lot of goo to handle *both* DLLs and import libs
+# Has to be a shell function in order to 'eat' the argument
+# that is supplied when $file_magic_command is called.
+# Despite the name, also deal with 64 bit binaries.
+func_win32_libid ()
+{
+  $opt_debug
+  win32_libid_type="unknown"
+  win32_fileres=`file -L $1 2>/dev/null`
+  case $win32_fileres in
+  *ar\ archive\ import\ library*) # definitely import
+    win32_libid_type="x86 archive import"
+    ;;
+  *ar\ archive*) # could be an import, or static
+    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
+    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
+       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
+      func_to_tool_file "$1" func_convert_file_msys_to_w32
+      win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+	$SED -n -e '
+	    1,100{
+		/ I /{
+		    s,.*,import,
+		    p
+		    q
+		}
+	    }'`
+      case $win32_nmres in
+      import*)  win32_libid_type="x86 archive import";;
+      *)        win32_libid_type="x86 archive static";;
+      esac
+    fi
+    ;;
+  *DLL*)
+    win32_libid_type="x86 DLL"
+    ;;
+  *executable*) # but shell scripts are "executable" too...
+    case $win32_fileres in
+    *MS\ Windows\ PE\ Intel*)
+      win32_libid_type="x86 DLL"
+      ;;
+    esac
+    ;;
+  esac
+  $ECHO "$win32_libid_type"
+}
+
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+  $opt_debug
+  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+  $opt_debug
+  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
+  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+    $SED '/^Contents of section '"$match_literal"':/{
+      # Place marker at beginning of archive member dllname section
+      s/.*/====MARK====/
+      p
+      d
+    }
+    # These lines can sometimes be longer than 43 characters, but
+    # are always uninteresting
+    /:[	 ]*file format pe[i]\{,1\}-/d
+    /^In archive [^:]*:/d
+    # Ensure marker is printed
+    /^====MARK====/p
+    # Remove all lines with less than 43 characters
+    /^.\{43\}/!d
+    # From remaining lines, remove first 43 characters
+    s/^.\{43\}//' |
+    $SED -n '
+      # Join marker and all lines until next marker into a single line
+      /^====MARK====/ b para
+      H
+      $ b para
+      b
+      :para
+      x
+      s/\n//g
+      # Remove the marker
+      s/^====MARK====//
+      # Remove trailing dots and whitespace
+      s/[\. \t]*$//
+      # Print
+      /./p' |
+    # we now have a list, one entry per line, of the stringified
+    # contents of the appropriate section of all members of the
+    # archive which possess that section. Heuristic: eliminate
+    # all those which have a first or second character that is
+    # a '.' (that is, objdump's representation of an unprintable
+    # character.) This should work for all archives with less than
+    # 0x302f exports -- but will fail for DLLs whose name actually
+    # begins with a literal '.' or a single character followed by
+    # a '.'.
+    #
+    # Of those that remain, print the first one.
+    $SED -e '/^\./d;/^.\./d;q'
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+  $opt_debug
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+  test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+  $opt_debug
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+  test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+  $opt_debug
+  if func_cygming_gnu_implib_p "$1" ; then
+    # binutils import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
+  elif func_cygming_ms_implib_p "$1" ; then
+    # ms-generated import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
+  else
+    # unknown
+    sharedlib_from_linklib_result=""
+  fi
+}
+
+
+# func_extract_an_archive dir oldlib
+func_extract_an_archive ()
+{
+    $opt_debug
+    f_ex_an_ar_dir="$1"; shift
+    f_ex_an_ar_oldlib="$1"
+    if test "$lock_old_archive_extraction" = yes; then
+      lockfile=$f_ex_an_ar_oldlib.lock
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    fi
+    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
+		   'stat=$?; rm -f "$lockfile"; exit $stat'
+    if test "$lock_old_archive_extraction" = yes; then
+      $opt_dry_run || rm -f "$lockfile"
+    fi
+    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
+     :
+    else
+      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
+    fi
+}
+
+
+# func_extract_archives gentop oldlib ...
+func_extract_archives ()
+{
+    $opt_debug
+    my_gentop="$1"; shift
+    my_oldlibs=${1+"$@"}
+    my_oldobjs=""
+    my_xlib=""
+    my_xabs=""
+    my_xdir=""
+
+    for my_xlib in $my_oldlibs; do
+      # Extract the objects.
+      case $my_xlib in
+	[\\/]* | [A-Za-z]:[\\/]*) my_xabs="$my_xlib" ;;
+	*) my_xabs=`pwd`"/$my_xlib" ;;
+      esac
+      func_basename "$my_xlib"
+      my_xlib="$func_basename_result"
+      my_xlib_u=$my_xlib
+      while :; do
+        case " $extracted_archives " in
+	*" $my_xlib_u "*)
+	  func_arith $extracted_serial + 1
+	  extracted_serial=$func_arith_result
+	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
+	*) break ;;
+	esac
+      done
+      extracted_archives="$extracted_archives $my_xlib_u"
+      my_xdir="$my_gentop/$my_xlib_u"
+
+      func_mkdir_p "$my_xdir"
+
+      case $host in
+      *-darwin*)
+	func_verbose "Extracting $my_xabs"
+	# Do not bother doing anything if just a dry run
+	$opt_dry_run || {
+	  darwin_orig_dir=`pwd`
+	  cd $my_xdir || exit $?
+	  darwin_archive=$my_xabs
+	  darwin_curdir=`pwd`
+	  darwin_base_archive=`basename "$darwin_archive"`
+	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
+	  if test -n "$darwin_arches"; then
+	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
+	    darwin_arch=
+	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
+	    for darwin_arch in  $darwin_arches ; do
+	      func_mkdir_p "unfat-$$/${darwin_base_archive}-${darwin_arch}"
+	      $LIPO -thin $darwin_arch -output "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}" "${darwin_archive}"
+	      cd "unfat-$$/${darwin_base_archive}-${darwin_arch}"
+	      func_extract_an_archive "`pwd`" "${darwin_base_archive}"
+	      cd "$darwin_curdir"
+	      $RM "unfat-$$/${darwin_base_archive}-${darwin_arch}/${darwin_base_archive}"
+	    done # $darwin_arches
+            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
+	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$basename" | sort -u`
+	    darwin_file=
+	    darwin_files=
+	    for darwin_file in $darwin_filelist; do
+	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
+	      $LIPO -create -output "$darwin_file" $darwin_files
+	    done # $darwin_filelist
+	    $RM -rf unfat-$$
+	    cd "$darwin_orig_dir"
+	  else
+	    cd $darwin_orig_dir
+	    func_extract_an_archive "$my_xdir" "$my_xabs"
+	  fi # $darwin_arches
+	} # !$opt_dry_run
+	;;
+      *)
+        func_extract_an_archive "$my_xdir" "$my_xabs"
+	;;
+      esac
+      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
+    done
+
+    func_extract_archives_result="$my_oldobjs"
+}
+
+
+# func_emit_wrapper [arg=no]
+#
+# Emit a libtool wrapper script on stdout.
+# Don't directly open a file because we may want to
+# incorporate the script contents within a cygwin/mingw
+# wrapper executable.  Must ONLY be called from within
+# func_mode_link because it depends on a number of variables
+# set therein.
+#
+# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
+# variable will take.  If 'yes', then the emitted script
+# will assume that the directory in which it is stored is
+# the $objdir directory.  This is a cygwin/mingw-specific
+# behavior.
+func_emit_wrapper ()
+{
+	func_emit_wrapper_arg1=${1-no}
+
+	$ECHO "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='$sed_quote_subst'
+
+# Be Bourne compatible
+if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+  # install mode needs the following variables:
+  generated_by_libtool_version='$macro_version'
+  notinst_deplibs='$notinst_deplibs'
+else
+  # When we are sourced in execute mode, \$file and \$ECHO are already set.
+  if test \"\$libtool_execute_magic\" != \"$magic\"; then
+    file=\"\$0\""
+
+    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+    $ECHO "\
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+    ECHO=\"$qECHO\"
+  fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ which is used only on
+# windows platforms, and (c) all begin with the string "--lt-"
+# (application programs are unlikely to have options which match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's $0 value, followed by "$@".
+lt_option_debug=
+func_parse_lt_options ()
+{
+  lt_script_arg0=\$0
+  shift
+  for lt_opt
+  do
+    case \"\$lt_opt\" in
+    --lt-debug) lt_option_debug=1 ;;
+    --lt-dump-script)
+        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
+        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
+        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
+        cat \"\$lt_dump_D/\$lt_dump_F\"
+        exit 0
+      ;;
+    --lt-*)
+        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
+        exit 1
+      ;;
+    esac
+  done
+
+  # Print the debug banner immediately:
+  if test -n \"\$lt_option_debug\"; then
+    echo \"${outputname}:${output}:\${LINENO}: libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\" 1>&2
+  fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+  lt_dump_args_N=1;
+  for lt_arg
+  do
+    \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[\$lt_dump_args_N]: \$lt_arg\"
+    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
+  done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+"
+  case $host in
+  # Backslashes separate directories on plain windows
+  *-*-mingw | *-*-os2* | *-cegcc*)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir\\\\\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
+"
+    ;;
+
+  *)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"${outputname}:${output}:\${LINENO}: newargv[0]: \$progdir/\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir/\$program\" \${1+\"\$@\"}
+"
+    ;;
+  esac
+  $ECHO "\
+      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
+      exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from \$@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+  case \" \$* \" in
+  *\\ --lt-*)
+    for lt_wr_arg
+    do
+      case \$lt_wr_arg in
+      --lt-*) ;;
+      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+      esac
+      shift
+    done ;;
+  esac
+  func_exec_program_core \${1+\"\$@\"}
+}
+
+  # Parse options
+  func_parse_lt_options \"\$0\" \${1+\"\$@\"}
+
+  # Find the directory that this script lives in.
+  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
+  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
+  while test -n \"\$file\"; do
+    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
+
+    # If there was a directory component, then change thisdir.
+    if test \"x\$destdir\" != \"x\$file\"; then
+      case \"\$destdir\" in
+      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+      *) thisdir=\"\$thisdir/\$destdir\" ;;
+      esac
+    fi
+
+    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
+    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
+  done
+
+  # Usually 'no', except on cygwin/mingw when embedded into
+  # the cwrapper.
+  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
+  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
+    # special case for '.'
+    if test \"\$thisdir\" = \".\"; then
+      thisdir=\`pwd\`
+    fi
+    # remove .libs from thisdir
+    case \"\$thisdir\" in
+    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
+    $objdir )   thisdir=. ;;
+    esac
+  fi
+
+  # Try to get the absolute directory name.
+  absdir=\`cd \"\$thisdir\" && pwd\`
+  test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+	if test "$fast_install" = yes; then
+	  $ECHO "\
+  program=lt-'$outputname'$exeext
+  progdir=\"\$thisdir/$objdir\"
+
+  if test ! -f \"\$progdir/\$program\" ||
+     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | ${SED} 1q\`; \\
+       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+    file=\"\$\$-\$program\"
+
+    if test ! -d \"\$progdir\"; then
+      $MKDIR \"\$progdir\"
+    else
+      $RM \"\$progdir/\$file\"
+    fi"
+
+	  $ECHO "\
+
+    # relink executable if necessary
+    if test -n \"\$relink_command\"; then
+      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+      else
+	$ECHO \"\$relink_command_output\" >&2
+	$RM \"\$progdir/\$file\"
+	exit 1
+      fi
+    fi
+
+    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+    { $RM \"\$progdir/\$program\";
+      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+    $RM \"\$progdir/\$file\"
+  fi"
+	else
+	  $ECHO "\
+  program='$outputname'
+  progdir=\"\$thisdir/$objdir\"
+"
+	fi
+
+	$ECHO "\
+
+  if test -f \"\$progdir/\$program\"; then"
+
+	# fixup the dll searchpath if we need to.
+	#
+	# Fix the DLL searchpath if we need to.  Do this before prepending
+	# to shlibpath, because on Windows, both are PATH and uninstalled
+	# libraries must come first.
+	if test -n "$dllsearchpath"; then
+	  $ECHO "\
+    # Add the dll search path components to the executable PATH
+    PATH=$dllsearchpath:\$PATH
+"
+	fi
+
+	# Export our shlibpath_var if we have one.
+	if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+	  $ECHO "\
+    # Add our own library path to $shlibpath_var
+    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+    # Some systems cannot cope with colon-terminated $shlibpath_var
+    # The second colon is a workaround for a bug in BeOS R4 sed
+    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
+
+    export $shlibpath_var
+"
+	fi
+
+	$ECHO "\
+    if test \"\$libtool_execute_magic\" != \"$magic\"; then
+      # Run the actual program with our arguments.
+      func_exec_program \${1+\"\$@\"}
+    fi
+  else
+    # The program doesn't exist.
+    \$ECHO \"\$0: error: \\\`\$progdir/\$program' does not exist\" 1>&2
+    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
+    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
+    exit 1
+  fi
+fi\
+"
+}
+
+
+# func_emit_cwrapperexe_src
+# emit the source code for a wrapper executable on stdout
+# Must ONLY be called from within func_mode_link because
+# it depends on a number of variable set therein.
+func_emit_cwrapperexe_src ()
+{
+	cat <<EOF
+
+/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
+   Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+
+   The $output program cannot be directly executed until all the libtool
+   libraries that it depends on are installed.
+
+   This wrapper executable should never be moved out of the build directory.
+   If it is, it will not operate correctly.
+*/
+EOF
+	    cat <<"EOF"
+#ifdef _MSC_VER
+# define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef _MSC_VER
+# include <direct.h>
+# include <process.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <stdint.h>
+# ifdef __CYGWIN__
+#  include <io.h>
+# endif
+#endif
+#include <malloc.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+/* declarations of non-ANSI functions */
+#if defined(__MINGW32__)
+# ifdef __STRICT_ANSI__
+int _putenv (const char *);
+# endif
+#elif defined(__CYGWIN__)
+# ifdef __STRICT_ANSI__
+char *realpath (const char *, char *);
+int putenv (char *);
+int setenv (const char *, const char *, int);
+# endif
+/* #elif defined (other platforms) ... */
+#endif
+
+/* portability defines, excluding path handling macros */
+#if defined(_MSC_VER)
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+# define S_IXUSR _S_IEXEC
+# ifndef _INTPTR_T_DEFINED
+#  define _INTPTR_T_DEFINED
+#  define intptr_t int
+# endif
+#elif defined(__MINGW32__)
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+#elif defined(__CYGWIN__)
+# define HAVE_SETENV
+# define FOPEN_WB "wb"
+/* #elif defined (other platforms) ... */
+#endif
+
+#if defined(PATH_MAX)
+# define LT_PATHMAX PATH_MAX
+#elif defined(MAXPATHLEN)
+# define LT_PATHMAX MAXPATHLEN
+#else
+# define LT_PATHMAX 1024
+#endif
+
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+
+/* path handling portability macros */
+#ifndef DIR_SEPARATOR
+# define DIR_SEPARATOR '/'
+# define PATH_SEPARATOR ':'
+#endif
+
+#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
+  defined (__OS2__)
+# define HAVE_DOS_BASED_FILE_SYSTEM
+# define FOPEN_WB "wb"
+# ifndef DIR_SEPARATOR_2
+#  define DIR_SEPARATOR_2 '\\'
+# endif
+# ifndef PATH_SEPARATOR_2
+#  define PATH_SEPARATOR_2 ';'
+# endif
+#endif
+
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+#ifndef PATH_SEPARATOR_2
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
+#else /* PATH_SEPARATOR_2 */
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
+#endif /* PATH_SEPARATOR_2 */
+
+#ifndef FOPEN_WB
+# define FOPEN_WB "w"
+#endif
+#ifndef _O_BINARY
+# define _O_BINARY 0
+#endif
+
+#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
+#define XFREE(stale) do { \
+  if (stale) { free ((void *) stale); stale = 0; } \
+} while (0)
+
+#if defined(LT_DEBUGWRAPPER)
+static int lt_debug = 1;
+#else
+static int lt_debug = 0;
+#endif
+
+const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
+
+void *xmalloc (size_t num);
+char *xstrdup (const char *string);
+const char *base_name (const char *name);
+char *find_executable (const char *wrapper);
+char *chase_symlinks (const char *pathspec);
+int make_executable (const char *path);
+int check_executable (const char *path);
+char *strendzap (char *str, const char *pat);
+void lt_debugprintf (const char *file, int line, const char *fmt, ...);
+void lt_fatal (const char *file, int line, const char *message, ...);
+static const char *nonnull (const char *s);
+static const char *nonempty (const char *s);
+void lt_setenv (const char *name, const char *value);
+char *lt_extend_str (const char *orig_value, const char *add, int to_end);
+void lt_update_exe_path (const char *name, const char *value);
+void lt_update_lib_path (const char *name, const char *value);
+char **prepare_spawn (char **argv);
+void lt_dump_script (FILE *f);
+EOF
+
+	    cat <<EOF
+volatile const char * MAGIC_EXE = "$magic_exe";
+const char * LIB_PATH_VARNAME = "$shlibpath_var";
+EOF
+
+	    if test "$shlibpath_overrides_runpath" = yes && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+              func_to_host_path "$temp_rpath"
+	      cat <<EOF
+const char * LIB_PATH_VALUE   = "$func_to_host_path_result";
+EOF
+	    else
+	      cat <<"EOF"
+const char * LIB_PATH_VALUE   = "";
+EOF
+	    fi
+
+	    if test -n "$dllsearchpath"; then
+              func_to_host_path "$dllsearchpath:"
+	      cat <<EOF
+const char * EXE_PATH_VARNAME = "PATH";
+const char * EXE_PATH_VALUE   = "$func_to_host_path_result";
+EOF
+	    else
+	      cat <<"EOF"
+const char * EXE_PATH_VARNAME = "";
+const char * EXE_PATH_VALUE   = "";
+EOF
+	    fi
+
+	    if test "$fast_install" = yes; then
+	      cat <<EOF
+const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
+EOF
+	    else
+	      cat <<EOF
+const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
+EOF
+	    fi
+
+
+	    cat <<"EOF"
+
+#define LTWRAPPER_OPTION_PREFIX         "--lt-"
+
+static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
+static const char *dumpscript_opt       = LTWRAPPER_OPTION_PREFIX "dump-script";
+static const char *debug_opt            = LTWRAPPER_OPTION_PREFIX "debug";
+
+int
+main (int argc, char *argv[])
+{
+  char **newargz;
+  int  newargc;
+  char *tmp_pathspec;
+  char *actual_cwrapper_path;
+  char *actual_cwrapper_name;
+  char *target_name;
+  char *lt_argv_zero;
+  intptr_t rval = 127;
+
+  int i;
+
+  program_name = (char *) xstrdup (base_name (argv[0]));
+  newargz = XMALLOC (char *, argc + 1);
+
+  /* very simple arg parsing; don't want to rely on getopt
+   * also, copy all non cwrapper options to newargz, except
+   * argz[0], which is handled differently
+   */
+  newargc=0;
+  for (i = 1; i < argc; i++)
+    {
+      if (strcmp (argv[i], dumpscript_opt) == 0)
+	{
+EOF
+	    case "$host" in
+	      *mingw* | *cygwin* )
+		# make stdout use "unix" line endings
+		echo "          setmode(1,_O_BINARY);"
+		;;
+	      esac
+
+	    cat <<"EOF"
+	  lt_dump_script (stdout);
+	  return 0;
+	}
+      if (strcmp (argv[i], debug_opt) == 0)
+	{
+          lt_debug = 1;
+          continue;
+	}
+      if (strcmp (argv[i], ltwrapper_option_prefix) == 0)
+        {
+          /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
+             namespace, but it is not one of the ones we know about and
+             have already dealt with, above (inluding dump-script), then
+             report an error. Otherwise, targets might begin to believe
+             they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
+             namespace. The first time any user complains about this, we'll
+             need to make LTWRAPPER_OPTION_PREFIX a configure-time option
+             or a configure.ac-settable value.
+           */
+          lt_fatal (__FILE__, __LINE__,
+		    "unrecognized %s option: '%s'",
+                    ltwrapper_option_prefix, argv[i]);
+        }
+      /* otherwise ... */
+      newargz[++newargc] = xstrdup (argv[i]);
+    }
+  newargz[++newargc] = NULL;
+
+EOF
+	    cat <<EOF
+  /* The GNU banner must be the first non-error debug message */
+  lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE$TIMESTAMP) $VERSION\n");
+EOF
+	    cat <<"EOF"
+  lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
+  lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);
+
+  tmp_pathspec = find_executable (argv[0]);
+  if (tmp_pathspec == NULL)
+    lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
+  lt_debugprintf (__FILE__, __LINE__,
+                  "(main) found exe (before symlink chase) at: %s\n",
+		  tmp_pathspec);
+
+  actual_cwrapper_path = chase_symlinks (tmp_pathspec);
+  lt_debugprintf (__FILE__, __LINE__,
+                  "(main) found exe (after symlink chase) at: %s\n",
+		  actual_cwrapper_path);
+  XFREE (tmp_pathspec);
+
+  actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
+  strendzap (actual_cwrapper_path, actual_cwrapper_name);
+
+  /* wrapper name transforms */
+  strendzap (actual_cwrapper_name, ".exe");
+  tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
+  XFREE (actual_cwrapper_name);
+  actual_cwrapper_name = tmp_pathspec;
+  tmp_pathspec = 0;
+
+  /* target_name transforms -- use actual target program name; might have lt- prefix */
+  target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
+  strendzap (target_name, ".exe");
+  tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
+  XFREE (target_name);
+  target_name = tmp_pathspec;
+  tmp_pathspec = 0;
+
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(main) libtool target name: %s\n",
+		  target_name);
+EOF
+
+	    cat <<EOF
+  newargz[0] =
+    XMALLOC (char, (strlen (actual_cwrapper_path) +
+		    strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
+  strcpy (newargz[0], actual_cwrapper_path);
+  strcat (newargz[0], "$objdir");
+  strcat (newargz[0], "/");
+EOF
+
+	    cat <<"EOF"
+  /* stop here, and copy so we don't have to do this twice */
+  tmp_pathspec = xstrdup (newargz[0]);
+
+  /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
+  strcat (newargz[0], actual_cwrapper_name);
+
+  /* DO want the lt- prefix here if it exists, so use target_name */
+  lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
+  XFREE (tmp_pathspec);
+  tmp_pathspec = NULL;
+EOF
+
+	    case $host_os in
+	      mingw*)
+	    cat <<"EOF"
+  {
+    char* p;
+    while ((p = strchr (newargz[0], '\\')) != NULL)
+      {
+	*p = '/';
+      }
+    while ((p = strchr (lt_argv_zero, '\\')) != NULL)
+      {
+	*p = '/';
+      }
+  }
+EOF
+	    ;;
+	    esac
+
+	    cat <<"EOF"
+  XFREE (target_name);
+  XFREE (actual_cwrapper_path);
+  XFREE (actual_cwrapper_name);
+
+  lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
+  lt_setenv ("DUALCASE", "1");  /* for MSK sh */
+  /* Update the DLL searchpath.  EXE_PATH_VALUE ($dllsearchpath) must
+     be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
+     because on Windows, both *_VARNAMEs are PATH but uninstalled
+     libraries must come first. */
+  lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
+  lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
+
+  lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
+		  nonnull (lt_argv_zero));
+  for (i = 0; i < newargc; i++)
+    {
+      lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
+		      i, nonnull (newargz[i]));
+    }
+
+EOF
+
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+  /* execv doesn't actually work on mingw as expected on unix */
+  newargz = prepare_spawn (newargz);
+  rval = _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
+  if (rval == -1)
+    {
+      /* failed to start process */
+      lt_debugprintf (__FILE__, __LINE__,
+		      "(main) failed to launch target \"%s\": %s\n",
+		      lt_argv_zero, nonnull (strerror (errno)));
+      return 127;
+    }
+  return rval;
+EOF
+		;;
+	      *)
+		cat <<"EOF"
+  execv (lt_argv_zero, newargz);
+  return rval; /* =127, but avoids unused variable warning */
+EOF
+		;;
+	    esac
+
+	    cat <<"EOF"
+}
+
+void *
+xmalloc (size_t num)
+{
+  void *p = (void *) malloc (num);
+  if (!p)
+    lt_fatal (__FILE__, __LINE__, "memory exhausted");
+
+  return p;
+}
+
+char *
+xstrdup (const char *string)
+{
+  return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
+			  string) : NULL;
+}
+
+const char *
+base_name (const char *name)
+{
+  const char *base;
+
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+  /* Skip over the disk name in MSDOS pathnames. */
+  if (isalpha ((unsigned char) name[0]) && name[1] == ':')
+    name += 2;
+#endif
+
+  for (base = name; *name; name++)
+    if (IS_DIR_SEPARATOR (*name))
+      base = name + 1;
+  return base;
+}
+
+int
+check_executable (const char *path)
+{
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if ((stat (path, &st) >= 0)
+      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+    return 1;
+  else
+    return 0;
+}
+
+int
+make_executable (const char *path)
+{
+  int rval = 0;
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if (stat (path, &st) >= 0)
+    {
+      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
+    }
+  return rval;
+}
+
+/* Searches for the full path of the wrapper.  Returns
+   newly allocated full path name if found, NULL otherwise
+   Does not chase symlinks, even on platforms that support them.
+*/
+char *
+find_executable (const char *wrapper)
+{
+  int has_slash = 0;
+  const char *p;
+  const char *p_next;
+  /* static buffer for getcwd */
+  char tmp[LT_PATHMAX + 1];
+  int tmp_len;
+  char *concat_name;
+
+  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
+                  nonempty (wrapper));
+
+  if ((wrapper == NULL) || (*wrapper == '\0'))
+    return NULL;
+
+  /* Absolute path? */
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
+    {
+      concat_name = xstrdup (wrapper);
+      if (check_executable (concat_name))
+	return concat_name;
+      XFREE (concat_name);
+    }
+  else
+    {
+#endif
+      if (IS_DIR_SEPARATOR (wrapper[0]))
+	{
+	  concat_name = xstrdup (wrapper);
+	  if (check_executable (concat_name))
+	    return concat_name;
+	  XFREE (concat_name);
+	}
+#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
+    }
+#endif
+
+  for (p = wrapper; *p; p++)
+    if (*p == '/')
+      {
+	has_slash = 1;
+	break;
+      }
+  if (!has_slash)
+    {
+      /* no slashes; search PATH */
+      const char *path = getenv ("PATH");
+      if (path != NULL)
+	{
+	  for (p = path; *p; p = p_next)
+	    {
+	      const char *q;
+	      size_t p_len;
+	      for (q = p; *q; q++)
+		if (IS_PATH_SEPARATOR (*q))
+		  break;
+	      p_len = q - p;
+	      p_next = (*q == '\0' ? q : q + 1);
+	      if (p_len == 0)
+		{
+		  /* empty path: current directory */
+		  if (getcwd (tmp, LT_PATHMAX) == NULL)
+		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+                              nonnull (strerror (errno)));
+		  tmp_len = strlen (tmp);
+		  concat_name =
+		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, tmp, tmp_len);
+		  concat_name[tmp_len] = '/';
+		  strcpy (concat_name + tmp_len + 1, wrapper);
+		}
+	      else
+		{
+		  concat_name =
+		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, p, p_len);
+		  concat_name[p_len] = '/';
+		  strcpy (concat_name + p_len + 1, wrapper);
+		}
+	      if (check_executable (concat_name))
+		return concat_name;
+	      XFREE (concat_name);
+	    }
+	}
+      /* not found in PATH; assume curdir */
+    }
+  /* Relative path | not found in path: prepend cwd */
+  if (getcwd (tmp, LT_PATHMAX) == NULL)
+    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+              nonnull (strerror (errno)));
+  tmp_len = strlen (tmp);
+  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+  memcpy (concat_name, tmp, tmp_len);
+  concat_name[tmp_len] = '/';
+  strcpy (concat_name + tmp_len + 1, wrapper);
+
+  if (check_executable (concat_name))
+    return concat_name;
+  XFREE (concat_name);
+  return NULL;
+}
+
+char *
+chase_symlinks (const char *pathspec)
+{
+#ifndef S_ISLNK
+  return xstrdup (pathspec);
+#else
+  char buf[LT_PATHMAX];
+  struct stat s;
+  char *tmp_pathspec = xstrdup (pathspec);
+  char *p;
+  int has_symlinks = 0;
+  while (strlen (tmp_pathspec) && !has_symlinks)
+    {
+      lt_debugprintf (__FILE__, __LINE__,
+		      "checking path component for symlinks: %s\n",
+		      tmp_pathspec);
+      if (lstat (tmp_pathspec, &s) == 0)
+	{
+	  if (S_ISLNK (s.st_mode) != 0)
+	    {
+	      has_symlinks = 1;
+	      break;
+	    }
+
+	  /* search backwards for last DIR_SEPARATOR */
+	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
+	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    p--;
+	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    {
+	      /* no more DIR_SEPARATORS left */
+	      break;
+	    }
+	  *p = '\0';
+	}
+      else
+	{
+	  lt_fatal (__FILE__, __LINE__,
+		    "error accessing file \"%s\": %s",
+		    tmp_pathspec, nonnull (strerror (errno)));
+	}
+    }
+  XFREE (tmp_pathspec);
+
+  if (!has_symlinks)
+    {
+      return xstrdup (pathspec);
+    }
+
+  tmp_pathspec = realpath (pathspec, buf);
+  if (tmp_pathspec == 0)
+    {
+      lt_fatal (__FILE__, __LINE__,
+		"could not follow symlinks for %s", pathspec);
+    }
+  return xstrdup (tmp_pathspec);
+#endif
+}
+
+char *
+strendzap (char *str, const char *pat)
+{
+  size_t len, patlen;
+
+  assert (str != NULL);
+  assert (pat != NULL);
+
+  len = strlen (str);
+  patlen = strlen (pat);
+
+  if (patlen <= len)
+    {
+      str += len - patlen;
+      if (strcmp (str, pat) == 0)
+	*str = '\0';
+    }
+  return str;
+}
+
+void
+lt_debugprintf (const char *file, int line, const char *fmt, ...)
+{
+  va_list args;
+  if (lt_debug)
+    {
+      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
+      va_start (args, fmt);
+      (void) vfprintf (stderr, fmt, args);
+      va_end (args);
+    }
+}
+
+static void
+lt_error_core (int exit_status, const char *file,
+	       int line, const char *mode,
+	       const char *message, va_list ap)
+{
+  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
+  vfprintf (stderr, message, ap);
+  fprintf (stderr, ".\n");
+
+  if (exit_status >= 0)
+    exit (exit_status);
+}
+
+void
+lt_fatal (const char *file, int line, const char *message, ...)
+{
+  va_list ap;
+  va_start (ap, message);
+  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
+  va_end (ap);
+}
+
+static const char *
+nonnull (const char *s)
+{
+  return s ? s : "(null)";
+}
+
+static const char *
+nonempty (const char *s)
+{
+  return (s && !*s) ? "(empty)" : nonnull (s);
+}
+
+void
+lt_setenv (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_setenv) setting '%s' to '%s'\n",
+                  nonnull (name), nonnull (value));
+  {
+#ifdef HAVE_SETENV
+    /* always make a copy, for consistency with !HAVE_SETENV */
+    char *str = xstrdup (value);
+    setenv (name, str, 1);
+#else
+    int len = strlen (name) + 1 + strlen (value) + 1;
+    char *str = XMALLOC (char, len);
+    sprintf (str, "%s=%s", name, value);
+    if (putenv (str) != EXIT_SUCCESS)
+      {
+        XFREE (str);
+      }
+#endif
+  }
+}
+
+char *
+lt_extend_str (const char *orig_value, const char *add, int to_end)
+{
+  char *new_value;
+  if (orig_value && *orig_value)
+    {
+      int orig_value_len = strlen (orig_value);
+      int add_len = strlen (add);
+      new_value = XMALLOC (char, add_len + orig_value_len + 1);
+      if (to_end)
+        {
+          strcpy (new_value, orig_value);
+          strcpy (new_value + orig_value_len, add);
+        }
+      else
+        {
+          strcpy (new_value, add);
+          strcpy (new_value + add_len, orig_value);
+        }
+    }
+  else
+    {
+      new_value = xstrdup (add);
+    }
+  return new_value;
+}
+
+void
+lt_update_exe_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      /* some systems can't cope with a ':'-terminated path #' */
+      int len = strlen (new_value);
+      while (((len = strlen (new_value)) > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+        {
+          new_value[len-1] = '\0';
+        }
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+void
+lt_update_lib_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+EOF
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+
+/* Prepares an argument vector before calling spawn().
+   Note that spawn() does not by itself call the command interpreter
+     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
+      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+         GetVersionEx(&v);
+         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
+      }) ? "cmd.exe" : "command.com").
+   Instead it simply concatenates the arguments, separated by ' ', and calls
+   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
+   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
+   special way:
+   - Space and tab are interpreted as delimiters. They are not treated as
+     delimiters if they are surrounded by double quotes: "...".
+   - Unescaped double quotes are removed from the input. Their only effect is
+     that within double quotes, space and tab are treated like normal
+     characters.
+   - Backslashes not followed by double quotes are not special.
+   - But 2*n+1 backslashes followed by a double quote become
+     n backslashes followed by a double quote (n >= 0):
+       \" -> "
+       \\\" -> \"
+       \\\\\" -> \\"
+ */
+#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+char **
+prepare_spawn (char **argv)
+{
+  size_t argc;
+  char **new_argv;
+  size_t i;
+
+  /* Count number of arguments.  */
+  for (argc = 0; argv[argc] != NULL; argc++)
+    ;
+
+  /* Allocate new argument vector.  */
+  new_argv = XMALLOC (char *, argc + 1);
+
+  /* Put quoted arguments into the new argument vector.  */
+  for (i = 0; i < argc; i++)
+    {
+      const char *string = argv[i];
+
+      if (string[0] == '\0')
+	new_argv[i] = xstrdup ("\"\"");
+      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
+	{
+	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
+	  size_t length;
+	  unsigned int backslashes;
+	  const char *s;
+	  char *quoted_string;
+	  char *p;
+
+	  length = 0;
+	  backslashes = 0;
+	  if (quote_around)
+	    length++;
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		length += backslashes + 1;
+	      length++;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    length += backslashes + 1;
+
+	  quoted_string = XMALLOC (char, length + 1);
+
+	  p = quoted_string;
+	  backslashes = 0;
+	  if (quote_around)
+	    *p++ = '"';
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		{
+		  unsigned int j;
+		  for (j = backslashes + 1; j > 0; j--)
+		    *p++ = '\\';
+		}
+	      *p++ = c;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    {
+	      unsigned int j;
+	      for (j = backslashes; j > 0; j--)
+		*p++ = '\\';
+	      *p++ = '"';
+	    }
+	  *p = '\0';
+
+	  new_argv[i] = quoted_string;
+	}
+      else
+	new_argv[i] = (char *) string;
+    }
+  new_argv[argc] = NULL;
+
+  return new_argv;
+}
+EOF
+		;;
+	    esac
+
+            cat <<"EOF"
+void lt_dump_script (FILE* f)
+{
+EOF
+	    func_emit_wrapper yes |
+	      $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/  fputs ("\1", f);/p
+g
+D'
+            cat <<"EOF"
+}
+EOF
+}
+# end: func_emit_cwrapperexe_src
+
+# func_win32_import_lib_p ARG
+# True if ARG is an import lib, as indicated by $file_magic_cmd
+func_win32_import_lib_p ()
+{
+    $opt_debug
+    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
+    *import*) : ;;
+    *) false ;;
+    esac
+}
+
+# func_mode_link arg...
+func_mode_link ()
+{
+    $opt_debug
+    case $host in
+    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+      # It is impossible to link a dll without this setting, and
+      # we shouldn't force the makefile maintainer to figure out
+      # which system we are compiling for in order to pass an extra
+      # flag for every libtool invocation.
+      # allow_undefined=no
+
+      # FIXME: Unfortunately, there are problems with the above when trying
+      # to make a dll which has undefined symbols, in which case not
+      # even a static library is built.  For now, we need to specify
+      # -no-undefined on the libtool link line when we can be certain
+      # that all symbols are satisfied, otherwise we get a static library.
+      allow_undefined=yes
+      ;;
+    *)
+      allow_undefined=yes
+      ;;
+    esac
+    libtool_args=$nonopt
+    base_compile="$nonopt $@"
+    compile_command=$nonopt
+    finalize_command=$nonopt
+
+    compile_rpath=
+    finalize_rpath=
+    compile_shlibpath=
+    finalize_shlibpath=
+    convenience=
+    old_convenience=
+    deplibs=
+    old_deplibs=
+    compiler_flags=
+    linker_flags=
+    dllsearchpath=
+    lib_search_path=`pwd`
+    inst_prefix_dir=
+    new_inherited_linker_flags=
+
+    avoid_version=no
+    bindir=
+    dlfiles=
+    dlprefiles=
+    dlself=no
+    export_dynamic=no
+    export_symbols=
+    export_symbols_regex=
+    generated=
+    libobjs=
+    ltlibs=
+    module=no
+    no_install=no
+    objs=
+    non_pic_objects=
+    precious_files_regex=
+    prefer_static_libs=no
+    preload=no
+    prev=
+    prevarg=
+    release=
+    rpath=
+    xrpath=
+    perm_rpath=
+    temp_rpath=
+    thread_safe=no
+    vinfo=
+    vinfo_number=no
+    weak_libs=
+    single_module="${wl}-single_module"
+    func_infer_tag $base_compile
+
+    # We need to know -static, to get the right output filenames.
+    for arg
+    do
+      case $arg in
+      -shared)
+	test "$build_libtool_libs" != yes && \
+	  func_fatal_configuration "can not build a shared library"
+	build_old_libs=no
+	break
+	;;
+      -all-static | -static | -static-libtool-libs)
+	case $arg in
+	-all-static)
+	  if test "$build_libtool_libs" = yes && test -z "$link_static_flag"; then
+	    func_warning "complete static linking is impossible in this configuration"
+	  fi
+	  if test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	-static)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=built
+	  ;;
+	-static-libtool-libs)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	esac
+	build_libtool_libs=no
+	build_old_libs=yes
+	break
+	;;
+      esac
+    done
+
+    # See if our shared archives depend on static archives.
+    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+    # Go through the arguments, transforming them on the way.
+    while test "$#" -gt 0; do
+      arg="$1"
+      shift
+      func_quote_for_eval "$arg"
+      qarg=$func_quote_for_eval_unquoted_result
+      func_append libtool_args " $func_quote_for_eval_result"
+
+      # If the previous option needs an argument, assign it.
+      if test -n "$prev"; then
+	case $prev in
+	output)
+	  func_append compile_command " @OUTPUT@"
+	  func_append finalize_command " @OUTPUT@"
+	  ;;
+	esac
+
+	case $prev in
+	bindir)
+	  bindir="$arg"
+	  prev=
+	  continue
+	  ;;
+	dlfiles|dlprefiles)
+	  if test "$preload" = no; then
+	    # Add the symbol object into the linking commands.
+	    func_append compile_command " @SYMFILE@"
+	    func_append finalize_command " @SYMFILE@"
+	    preload=yes
+	  fi
+	  case $arg in
+	  *.la | *.lo) ;;  # We handle these cases below.
+	  force)
+	    if test "$dlself" = no; then
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  self)
+	    if test "$prev" = dlprefiles; then
+	      dlself=yes
+	    elif test "$prev" = dlfiles && test "$dlopen_self" != yes; then
+	      dlself=yes
+	    else
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  *)
+	    if test "$prev" = dlfiles; then
+	      func_append dlfiles " $arg"
+	    else
+	      func_append dlprefiles " $arg"
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  esac
+	  ;;
+	expsyms)
+	  export_symbols="$arg"
+	  test -f "$arg" \
+	    || func_fatal_error "symbol file \`$arg' does not exist"
+	  prev=
+	  continue
+	  ;;
+	expsyms_regex)
+	  export_symbols_regex="$arg"
+	  prev=
+	  continue
+	  ;;
+	framework)
+	  case $host in
+	    *-*-darwin*)
+	      case "$deplibs " in
+		*" $qarg.ltframework "*) ;;
+		*) func_append deplibs " $qarg.ltframework" # this is fixed later
+		   ;;
+	      esac
+	      ;;
+	  esac
+	  prev=
+	  continue
+	  ;;
+	inst_prefix)
+	  inst_prefix_dir="$arg"
+	  prev=
+	  continue
+	  ;;
+	objectlist)
+	  if test -f "$arg"; then
+	    save_arg=$arg
+	    moreargs=
+	    for fil in `cat "$save_arg"`
+	    do
+#	      func_append moreargs " $fil"
+	      arg=$fil
+	      # A libtool-controlled object.
+
+	      # Check to see that this really is a libtool object.
+	      if func_lalib_unsafe_p "$arg"; then
+		pic_object=
+		non_pic_object=
+
+		# Read the .lo file
+		func_source "$arg"
+
+		if test -z "$pic_object" ||
+		   test -z "$non_pic_object" ||
+		   test "$pic_object" = none &&
+		   test "$non_pic_object" = none; then
+		  func_fatal_error "cannot find name of object for \`$arg'"
+		fi
+
+		# Extract subdirectory from the argument.
+		func_dirname "$arg" "/" ""
+		xdir="$func_dirname_result"
+
+		if test "$pic_object" != none; then
+		  # Prepend the subdirectory the object is found in.
+		  pic_object="$xdir$pic_object"
+
+		  if test "$prev" = dlfiles; then
+		    if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+		      func_append dlfiles " $pic_object"
+		      prev=
+		      continue
+		    else
+		      # If libtool objects are unsupported, then we need to preload.
+		      prev=dlprefiles
+		    fi
+		  fi
+
+		  # CHECK ME:  I think I busted this.  -Ossama
+		  if test "$prev" = dlprefiles; then
+		    # Preload the old-style object.
+		    func_append dlprefiles " $pic_object"
+		    prev=
+		  fi
+
+		  # A PIC object.
+		  func_append libobjs " $pic_object"
+		  arg="$pic_object"
+		fi
+
+		# Non-PIC object.
+		if test "$non_pic_object" != none; then
+		  # Prepend the subdirectory the object is found in.
+		  non_pic_object="$xdir$non_pic_object"
+
+		  # A standard non-PIC object
+		  func_append non_pic_objects " $non_pic_object"
+		  if test -z "$pic_object" || test "$pic_object" = none ; then
+		    arg="$non_pic_object"
+		  fi
+		else
+		  # If the PIC object exists, use it instead.
+		  # $xdir was prepended to $pic_object above.
+		  non_pic_object="$pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+		fi
+	      else
+		# Only an error if not doing a dry-run.
+		if $opt_dry_run; then
+		  # Extract subdirectory from the argument.
+		  func_dirname "$arg" "/" ""
+		  xdir="$func_dirname_result"
+
+		  func_lo2o "$arg"
+		  pic_object=$xdir$objdir/$func_lo2o_result
+		  non_pic_object=$xdir$func_lo2o_result
+		  func_append libobjs " $pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+	        else
+		  func_fatal_error "\`$arg' is not a valid libtool object"
+		fi
+	      fi
+	    done
+	  else
+	    func_fatal_error "link input file \`$arg' does not exist"
+	  fi
+	  arg=$save_arg
+	  prev=
+	  continue
+	  ;;
+	precious_regex)
+	  precious_files_regex="$arg"
+	  prev=
+	  continue
+	  ;;
+	release)
+	  release="-$arg"
+	  prev=
+	  continue
+	  ;;
+	rpath | xrpath)
+	  # We need an absolute path.
+	  case $arg in
+	  [\\/]* | [A-Za-z]:[\\/]*) ;;
+	  *)
+	    func_fatal_error "only absolute run-paths are allowed"
+	    ;;
+	  esac
+	  if test "$prev" = rpath; then
+	    case "$rpath " in
+	    *" $arg "*) ;;
+	    *) func_append rpath " $arg" ;;
+	    esac
+	  else
+	    case "$xrpath " in
+	    *" $arg "*) ;;
+	    *) func_append xrpath " $arg" ;;
+	    esac
+	  fi
+	  prev=
+	  continue
+	  ;;
+	shrext)
+	  shrext_cmds="$arg"
+	  prev=
+	  continue
+	  ;;
+	weak)
+	  func_append weak_libs " $arg"
+	  prev=
+	  continue
+	  ;;
+	xcclinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xcompiler)
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xlinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $wl$qarg"
+	  prev=
+	  func_append compile_command " $wl$qarg"
+	  func_append finalize_command " $wl$qarg"
+	  continue
+	  ;;
+	*)
+	  eval "$prev=\"\$arg\""
+	  prev=
+	  continue
+	  ;;
+	esac
+      fi # test -n "$prev"
+
+      prevarg="$arg"
+
+      case $arg in
+      -all-static)
+	if test -n "$link_static_flag"; then
+	  # See comment for -static flag below, for more details.
+	  func_append compile_command " $link_static_flag"
+	  func_append finalize_command " $link_static_flag"
+	fi
+	continue
+	;;
+
+      -allow-undefined)
+	# FIXME: remove this flag sometime in the future.
+	func_fatal_error "\`-allow-undefined' must not be used because it is the default"
+	;;
+
+      -avoid-version)
+	avoid_version=yes
+	continue
+	;;
+
+      -bindir)
+	prev=bindir
+	continue
+	;;
+
+      -dlopen)
+	prev=dlfiles
+	continue
+	;;
+
+      -dlpreopen)
+	prev=dlprefiles
+	continue
+	;;
+
+      -export-dynamic)
+	export_dynamic=yes
+	continue
+	;;
+
+      -export-symbols | -export-symbols-regex)
+	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+	  func_fatal_error "more than one -exported-symbols argument is not allowed"
+	fi
+	if test "X$arg" = "X-export-symbols"; then
+	  prev=expsyms
+	else
+	  prev=expsyms_regex
+	fi
+	continue
+	;;
+
+      -framework)
+	prev=framework
+	continue
+	;;
+
+      -inst-prefix-dir)
+	prev=inst_prefix
+	continue
+	;;
+
+      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+      # so, if we see these flags be careful not to treat them like -L
+      -L[A-Z][A-Z]*:*)
+	case $with_gcc/$host in
+	no/*-*-irix* | /*-*-irix*)
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  ;;
+	esac
+	continue
+	;;
+
+      -L*)
+	func_stripname "-L" '' "$arg"
+	if test -z "$func_stripname_result"; then
+	  if test "$#" -gt 0; then
+	    func_fatal_error "require no space between \`-L' and \`$1'"
+	  else
+	    func_fatal_error "need path for \`-L' option"
+	  fi
+	fi
+	func_resolve_sysroot "$func_stripname_result"
+	dir=$func_resolve_sysroot_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	*)
+	  absdir=`cd "$dir" && pwd`
+	  test -z "$absdir" && \
+	    func_fatal_error "cannot determine absolute directory name of \`$dir'"
+	  dir="$absdir"
+	  ;;
+	esac
+	case "$deplibs " in
+	*" -L$dir "* | *" $arg "*)
+	  # Will only happen for absolute or sysroot arguments
+	  ;;
+	*)
+	  # Preserve sysroot, but never include relative directories
+	  case $dir in
+	    [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
+	    *) func_append deplibs " -L$dir" ;;
+	  esac
+	  func_append lib_search_path " $dir"
+	  ;;
+	esac
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$dir:"*) ;;
+	  ::) dllsearchpath=$dir;;
+	  *) func_append dllsearchpath ":$dir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+	continue
+	;;
+
+      -l*)
+	if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # These systems don't actually have a C or math library (as such)
+	    continue
+	    ;;
+	  *-*-os2*)
+	    # These systems don't actually have a C library (as such)
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C and math libraries are in the System framework
+	    func_append deplibs " System.ltframework"
+	    continue
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    test "X$arg" = "X-lc" && continue
+	    ;;
+	  esac
+	elif test "X$arg" = "X-lc_r"; then
+	 case $host in
+	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	   # Do not include libc_r directly, use -pthread flag.
+	   continue
+	   ;;
+	 esac
+	fi
+	func_append deplibs " $arg"
+	continue
+	;;
+
+      -module)
+	module=yes
+	continue
+	;;
+
+      # Tru64 UNIX uses -model [arg] to determine the layout of C++
+      # classes, name mangling, and exception handling.
+      # Darwin uses the -arch flag to determine output architecture.
+      -model|-arch|-isysroot|--sysroot)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	prev=xcompiler
+	continue
+	;;
+
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	case "$new_inherited_linker_flags " in
+	    *" $arg "*) ;;
+	    * ) func_append new_inherited_linker_flags " $arg" ;;
+	esac
+	continue
+	;;
+
+      -multi_module)
+	single_module="${wl}-multi_module"
+	continue
+	;;
+
+      -no-fast-install)
+	fast_install=no
+	continue
+	;;
+
+      -no-install)
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+	  # The PATH hackery in wrapper scripts is required on Windows
+	  # and Darwin in order for the loader to find any dlls it needs.
+	  func_warning "\`-no-install' is ignored for $host"
+	  func_warning "assuming \`-no-fast-install' instead"
+	  fast_install=no
+	  ;;
+	*) no_install=yes ;;
+	esac
+	continue
+	;;
+
+      -no-undefined)
+	allow_undefined=no
+	continue
+	;;
+
+      -objectlist)
+	prev=objectlist
+	continue
+	;;
+
+      -o) prev=output ;;
+
+      -precious-files-regex)
+	prev=precious_regex
+	continue
+	;;
+
+      -release)
+	prev=release
+	continue
+	;;
+
+      -rpath)
+	prev=rpath
+	continue
+	;;
+
+      -R)
+	prev=xrpath
+	continue
+	;;
+
+      -R*)
+	func_stripname '-R' '' "$arg"
+	dir=$func_stripname_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	=*)
+	  func_stripname '=' '' "$dir"
+	  dir=$lt_sysroot$func_stripname_result
+	  ;;
+	*)
+	  func_fatal_error "only absolute run-paths are allowed"
+	  ;;
+	esac
+	case "$xrpath " in
+	*" $dir "*) ;;
+	*) func_append xrpath " $dir" ;;
+	esac
+	continue
+	;;
+
+      -shared)
+	# The effects of -shared are defined in a previous loop.
+	continue
+	;;
+
+      -shrext)
+	prev=shrext
+	continue
+	;;
+
+      -static | -static-libtool-libs)
+	# The effects of -static are defined in a previous loop.
+	# We used to do the same as -all-static on platforms that
+	# didn't have a PIC flag, but the assumption that the effects
+	# would be equivalent was wrong.  It would break on at least
+	# Digital Unix and AIX.
+	continue
+	;;
+
+      -thread-safe)
+	thread_safe=yes
+	continue
+	;;
+
+      -version-info)
+	prev=vinfo
+	continue
+	;;
+
+      -version-number)
+	prev=vinfo
+	vinfo_number=yes
+	continue
+	;;
+
+      -weak)
+        prev=weak
+	continue
+	;;
+
+      -Wc,*)
+	func_stripname '-Wc,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs="$IFS"; IFS=','
+	for flag in $args; do
+	  IFS="$save_ifs"
+          func_quote_for_eval "$flag"
+	  func_append arg " $func_quote_for_eval_result"
+	  func_append compiler_flags " $func_quote_for_eval_result"
+	done
+	IFS="$save_ifs"
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Wl,*)
+	func_stripname '-Wl,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs="$IFS"; IFS=','
+	for flag in $args; do
+	  IFS="$save_ifs"
+          func_quote_for_eval "$flag"
+	  func_append arg " $wl$func_quote_for_eval_result"
+	  func_append compiler_flags " $wl$func_quote_for_eval_result"
+	  func_append linker_flags " $func_quote_for_eval_result"
+	done
+	IFS="$save_ifs"
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Xcompiler)
+	prev=xcompiler
+	continue
+	;;
+
+      -Xlinker)
+	prev=xlinker
+	continue
+	;;
+
+      -XCClinker)
+	prev=xcclinker
+	continue
+	;;
+
+      # -msg_* for osf cc
+      -msg_*)
+	func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+	;;
+
+      # Flags to be passed through unchanged, with rationale:
+      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
+      # -r[0-9][0-9]*        specify processor for the SGI compiler
+      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
+      # +DA*, +DD*           enable 64-bit mode for the HP compiler
+      # -q*                  compiler args for the IBM compiler
+      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
+      # -F/path              path to uninstalled frameworks, gcc on darwin
+      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
+      # @file                GCC response files
+      # -tp=*                Portland pgcc target processor selection
+      # --sysroot=*          for sysroot support
+      # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+      -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
+        func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+        func_append compile_command " $arg"
+        func_append finalize_command " $arg"
+        func_append compiler_flags " $arg"
+        continue
+        ;;
+
+      # Some other compiler flag.
+      -* | +*)
+        func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+	;;
+
+      *.$objext)
+	# A standard object.
+	func_append objs " $arg"
+	;;
+
+      *.lo)
+	# A libtool-controlled object.
+
+	# Check to see that this really is a libtool object.
+	if func_lalib_unsafe_p "$arg"; then
+	  pic_object=
+	  non_pic_object=
+
+	  # Read the .lo file
+	  func_source "$arg"
+
+	  if test -z "$pic_object" ||
+	     test -z "$non_pic_object" ||
+	     test "$pic_object" = none &&
+	     test "$non_pic_object" = none; then
+	    func_fatal_error "cannot find name of object for \`$arg'"
+	  fi
+
+	  # Extract subdirectory from the argument.
+	  func_dirname "$arg" "/" ""
+	  xdir="$func_dirname_result"
+
+	  if test "$pic_object" != none; then
+	    # Prepend the subdirectory the object is found in.
+	    pic_object="$xdir$pic_object"
+
+	    if test "$prev" = dlfiles; then
+	      if test "$build_libtool_libs" = yes && test "$dlopen_support" = yes; then
+		func_append dlfiles " $pic_object"
+		prev=
+		continue
+	      else
+		# If libtool objects are unsupported, then we need to preload.
+		prev=dlprefiles
+	      fi
+	    fi
+
+	    # CHECK ME:  I think I busted this.  -Ossama
+	    if test "$prev" = dlprefiles; then
+	      # Preload the old-style object.
+	      func_append dlprefiles " $pic_object"
+	      prev=
+	    fi
+
+	    # A PIC object.
+	    func_append libobjs " $pic_object"
+	    arg="$pic_object"
+	  fi
+
+	  # Non-PIC object.
+	  if test "$non_pic_object" != none; then
+	    # Prepend the subdirectory the object is found in.
+	    non_pic_object="$xdir$non_pic_object"
+
+	    # A standard non-PIC object
+	    func_append non_pic_objects " $non_pic_object"
+	    if test -z "$pic_object" || test "$pic_object" = none ; then
+	      arg="$non_pic_object"
+	    fi
+	  else
+	    # If the PIC object exists, use it instead.
+	    # $xdir was prepended to $pic_object above.
+	    non_pic_object="$pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  fi
+	else
+	  # Only an error if not doing a dry-run.
+	  if $opt_dry_run; then
+	    # Extract subdirectory from the argument.
+	    func_dirname "$arg" "/" ""
+	    xdir="$func_dirname_result"
+
+	    func_lo2o "$arg"
+	    pic_object=$xdir$objdir/$func_lo2o_result
+	    non_pic_object=$xdir$func_lo2o_result
+	    func_append libobjs " $pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  else
+	    func_fatal_error "\`$arg' is not a valid libtool object"
+	  fi
+	fi
+	;;
+
+      *.$libext)
+	# An archive.
+	func_append deplibs " $arg"
+	func_append old_deplibs " $arg"
+	continue
+	;;
+
+      *.la)
+	# A libtool-controlled library.
+
+	func_resolve_sysroot "$arg"
+	if test "$prev" = dlfiles; then
+	  # This library was specified with -dlopen.
+	  func_append dlfiles " $func_resolve_sysroot_result"
+	  prev=
+	elif test "$prev" = dlprefiles; then
+	  # The library was specified with -dlpreopen.
+	  func_append dlprefiles " $func_resolve_sysroot_result"
+	  prev=
+	else
+	  func_append deplibs " $func_resolve_sysroot_result"
+	fi
+	continue
+	;;
+
+      # Some other compiler argument.
+      *)
+	# Unknown arguments in both finalize_command and compile_command need
+	# to be aesthetically quoted because they are evaled later.
+	func_quote_for_eval "$arg"
+	arg="$func_quote_for_eval_result"
+	;;
+      esac # arg
+
+      # Now actually substitute the argument into the commands.
+      if test -n "$arg"; then
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+      fi
+    done # argument parsing loop
+
+    test -n "$prev" && \
+      func_fatal_help "the \`$prevarg' option requires an argument"
+
+    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then
+      eval arg=\"$export_dynamic_flag_spec\"
+      func_append compile_command " $arg"
+      func_append finalize_command " $arg"
+    fi
+
+    oldlibs=
+    # calculate the name of the file, without its directory
+    func_basename "$output"
+    outputname="$func_basename_result"
+    libobjs_save="$libobjs"
+
+    if test -n "$shlibpath_var"; then
+      # get the directories listed in $shlibpath_var
+      eval shlib_search_path=\`\$ECHO \"\${$shlibpath_var}\" \| \$SED \'s/:/ /g\'\`
+    else
+      shlib_search_path=
+    fi
+    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+    func_dirname "$output" "/" ""
+    output_objdir="$func_dirname_result$objdir"
+    func_to_tool_file "$output_objdir/"
+    tool_output_objdir=$func_to_tool_file_result
+    # Create the object directory.
+    func_mkdir_p "$output_objdir"
+
+    # Determine the type of output
+    case $output in
+    "")
+      func_fatal_help "you must specify an output file"
+      ;;
+    *.$libext) linkmode=oldlib ;;
+    *.lo | *.$objext) linkmode=obj ;;
+    *.la) linkmode=lib ;;
+    *) linkmode=prog ;; # Anything else should be a program.
+    esac
+
+    specialdeplibs=
+
+    libs=
+    # Find all interdependent deplibs by searching for libraries
+    # that are linked more than once (e.g. -la -lb -la)
+    for deplib in $deplibs; do
+      if $opt_preserve_dup_deps ; then
+	case "$libs " in
+	*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	esac
+      fi
+      func_append libs " $deplib"
+    done
+
+    if test "$linkmode" = lib; then
+      libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+      # Compute libraries that are listed more than once in $predeps
+      # $postdeps and mark them as special (i.e., whose duplicates are
+      # not to be eliminated).
+      pre_post_deps=
+      if $opt_duplicate_compiler_generated_deps; then
+	for pre_post_dep in $predeps $postdeps; do
+	  case "$pre_post_deps " in
+	  *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
+	  esac
+	  func_append pre_post_deps " $pre_post_dep"
+	done
+      fi
+      pre_post_deps=
+    fi
+
+    deplibs=
+    newdependency_libs=
+    newlib_search_path=
+    need_relink=no # whether we're linking any uninstalled libtool libraries
+    notinst_deplibs= # not-installed libtool libraries
+    notinst_path= # paths that contain not-installed libtool libraries
+
+    case $linkmode in
+    lib)
+	passes="conv dlpreopen link"
+	for file in $dlfiles $dlprefiles; do
+	  case $file in
+	  *.la) ;;
+	  *)
+	    func_fatal_help "libraries can \`-dlopen' only libtool libraries: $file"
+	    ;;
+	  esac
+	done
+	;;
+    prog)
+	compile_deplibs=
+	finalize_deplibs=
+	alldeplibs=no
+	newdlfiles=
+	newdlprefiles=
+	passes="conv scan dlopen dlpreopen link"
+	;;
+    *)  passes="conv"
+	;;
+    esac
+
+    for pass in $passes; do
+      # The preopen pass in lib mode reverses $deplibs; put it back here
+      # so that -L comes before libs that need it for instance...
+      if test "$linkmode,$pass" = "lib,link"; then
+	## FIXME: Find the place where the list is rebuilt in the wrong
+	##        order, and fix it there properly
+        tmp_deplibs=
+	for deplib in $deplibs; do
+	  tmp_deplibs="$deplib $tmp_deplibs"
+	done
+	deplibs="$tmp_deplibs"
+      fi
+
+      if test "$linkmode,$pass" = "lib,link" ||
+	 test "$linkmode,$pass" = "prog,scan"; then
+	libs="$deplibs"
+	deplibs=
+      fi
+      if test "$linkmode" = prog; then
+	case $pass in
+	dlopen) libs="$dlfiles" ;;
+	dlpreopen) libs="$dlprefiles" ;;
+	link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
+	esac
+      fi
+      if test "$linkmode,$pass" = "lib,dlpreopen"; then
+	# Collect and forward deplibs of preopened libtool libs
+	for lib in $dlprefiles; do
+	  # Ignore non-libtool-libs
+	  dependency_libs=
+	  func_resolve_sysroot "$lib"
+	  case $lib in
+	  *.la)	func_source "$func_resolve_sysroot_result" ;;
+	  esac
+
+	  # Collect preopened libtool deplibs, except any this library
+	  # has declared as weak libs
+	  for deplib in $dependency_libs; do
+	    func_basename "$deplib"
+            deplib_base=$func_basename_result
+	    case " $weak_libs " in
+	    *" $deplib_base "*) ;;
+	    *) func_append deplibs " $deplib" ;;
+	    esac
+	  done
+	done
+	libs="$dlprefiles"
+      fi
+      if test "$pass" = dlopen; then
+	# Collect dlpreopened libraries
+	save_deplibs="$deplibs"
+	deplibs=
+      fi
+
+      for deplib in $libs; do
+	lib=
+	found=no
+	case $deplib in
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	  if test "$linkmode,$pass" = "prog,link"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    func_append compiler_flags " $deplib"
+	    if test "$linkmode" = lib ; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-l*)
+	  if test "$linkmode" != lib && test "$linkmode" != prog; then
+	    func_warning "\`-l' is ignored for archives/objects"
+	    continue
+	  fi
+	  func_stripname '-l' '' "$deplib"
+	  name=$func_stripname_result
+	  if test "$linkmode" = lib; then
+	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
+	  else
+	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
+	  fi
+	  for searchdir in $searchdirs; do
+	    for search_ext in .la $std_shrext .so .a; do
+	      # Search the libtool library
+	      lib="$searchdir/lib${name}${search_ext}"
+	      if test -f "$lib"; then
+		if test "$search_ext" = ".la"; then
+		  found=yes
+		else
+		  found=no
+		fi
+		break 2
+	      fi
+	    done
+	  done
+	  if test "$found" != yes; then
+	    # deplib doesn't seem to be a libtool library
+	    if test "$linkmode,$pass" = "prog,link"; then
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      deplibs="$deplib $deplibs"
+	      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    continue
+	  else # deplib is a libtool library
+	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
+	    # We need to do some special things here, and not later.
+	    if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+	      case " $predeps $postdeps " in
+	      *" $deplib "*)
+		if func_lalib_p "$lib"; then
+		  library_names=
+		  old_library=
+		  func_source "$lib"
+		  for l in $old_library $library_names; do
+		    ll="$l"
+		  done
+		  if test "X$ll" = "X$old_library" ; then # only static version available
+		    found=no
+		    func_dirname "$lib" "" "."
+		    ladir="$func_dirname_result"
+		    lib=$ladir/$old_library
+		    if test "$linkmode,$pass" = "prog,link"; then
+		      compile_deplibs="$deplib $compile_deplibs"
+		      finalize_deplibs="$deplib $finalize_deplibs"
+		    else
+		      deplibs="$deplib $deplibs"
+		      test "$linkmode" = lib && newdependency_libs="$deplib $newdependency_libs"
+		    fi
+		    continue
+		  fi
+		fi
+		;;
+	      *) ;;
+	      esac
+	    fi
+	  fi
+	  ;; # -l
+	*.ltframework)
+	  if test "$linkmode,$pass" = "prog,link"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    deplibs="$deplib $deplibs"
+	    if test "$linkmode" = lib ; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-L*)
+	  case $linkmode in
+	  lib)
+	    deplibs="$deplib $deplibs"
+	    test "$pass" = conv && continue
+	    newdependency_libs="$deplib $newdependency_libs"
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  prog)
+	    if test "$pass" = conv; then
+	      deplibs="$deplib $deplibs"
+	      continue
+	    fi
+	    if test "$pass" = scan; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  *)
+	    func_warning "\`-L' is ignored for archives/objects"
+	    ;;
+	  esac # linkmode
+	  continue
+	  ;; # -L
+	-R*)
+	  if test "$pass" = link; then
+	    func_stripname '-R' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    dir=$func_resolve_sysroot_result
+	    # Make sure the xrpath contains only unique directories.
+	    case "$xrpath " in
+	    *" $dir "*) ;;
+	    *) func_append xrpath " $dir" ;;
+	    esac
+	  fi
+	  deplibs="$deplib $deplibs"
+	  continue
+	  ;;
+	*.la)
+	  func_resolve_sysroot "$deplib"
+	  lib=$func_resolve_sysroot_result
+	  ;;
+	*.$libext)
+	  if test "$pass" = conv; then
+	    deplibs="$deplib $deplibs"
+	    continue
+	  fi
+	  case $linkmode in
+	  lib)
+	    # Linking convenience modules into shared libraries is allowed,
+	    # but linking other static libraries is non-portable.
+	    case " $dlpreconveniencelibs " in
+	    *" $deplib "*) ;;
+	    *)
+	      valid_a_lib=no
+	      case $deplibs_check_method in
+		match_pattern*)
+		  set dummy $deplibs_check_method; shift
+		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
+		    | $EGREP "$match_pattern_regex" > /dev/null; then
+		    valid_a_lib=yes
+		  fi
+		;;
+		pass_all)
+		  valid_a_lib=yes
+		;;
+	      esac
+	      if test "$valid_a_lib" != yes; then
+		echo
+		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because the file extensions .$libext of this argument makes me believe"
+		echo "*** that it is just a static archive that I should not use here."
+	      else
+		echo
+		$ECHO "*** Warning: Linking the shared library $output against the"
+		$ECHO "*** static library $deplib is not portable!"
+		deplibs="$deplib $deplibs"
+	      fi
+	      ;;
+	    esac
+	    continue
+	    ;;
+	  prog)
+	    if test "$pass" != link; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    continue
+	    ;;
+	  esac # linkmode
+	  ;; # *.$libext
+	*.lo | *.$objext)
+	  if test "$pass" = conv; then
+	    deplibs="$deplib $deplibs"
+	  elif test "$linkmode" = prog; then
+	    if test "$pass" = dlpreopen || test "$dlopen_support" != yes || test "$build_libtool_libs" = no; then
+	      # If there is no dlopen support or we're linking statically,
+	      # we need to preload.
+	      func_append newdlprefiles " $deplib"
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      func_append newdlfiles " $deplib"
+	    fi
+	  fi
+	  continue
+	  ;;
+	%DEPLIBS%)
+	  alldeplibs=yes
+	  continue
+	  ;;
+	esac # case $deplib
+
+	if test "$found" = yes || test -f "$lib"; then :
+	else
+	  func_fatal_error "cannot find the library \`$lib' or unhandled argument \`$deplib'"
+	fi
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$lib" \
+	  || func_fatal_error "\`$lib' is not a valid libtool archive"
+
+	func_dirname "$lib" "" "."
+	ladir="$func_dirname_result"
+
+	dlname=
+	dlopen=
+	dlpreopen=
+	libdir=
+	library_names=
+	old_library=
+	inherited_linker_flags=
+	# If the library was installed with an old release of libtool,
+	# it will not redefine variables installed, or shouldnotlink
+	installed=yes
+	shouldnotlink=no
+	avoidtemprpath=
+
+
+	# Read the .la file
+	func_source "$lib"
+
+	# Convert "-framework foo" to "foo.ltframework"
+	if test -n "$inherited_linker_flags"; then
+	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
+	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
+	    case " $new_inherited_linker_flags " in
+	      *" $tmp_inherited_linker_flag "*) ;;
+	      *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
+	    esac
+	  done
+	fi
+	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	if test "$linkmode,$pass" = "lib,link" ||
+	   test "$linkmode,$pass" = "prog,scan" ||
+	   { test "$linkmode" != prog && test "$linkmode" != lib; }; then
+	  test -n "$dlopen" && func_append dlfiles " $dlopen"
+	  test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
+	fi
+
+	if test "$pass" = conv; then
+	  # Only check for convenience libraries
+	  deplibs="$lib $deplibs"
+	  if test -z "$libdir"; then
+	    if test -z "$old_library"; then
+	      func_fatal_error "cannot find name of link library for \`$lib'"
+	    fi
+	    # It is a libtool convenience library, so add in its objects.
+	    func_append convenience " $ladir/$objdir/$old_library"
+	    func_append old_convenience " $ladir/$objdir/$old_library"
+	  elif test "$linkmode" != prog && test "$linkmode" != lib; then
+	    func_fatal_error "\`$lib' is not a convenience library"
+	  fi
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    deplibs="$deplib $deplibs"
+	    if $opt_preserve_dup_deps ; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done
+	  continue
+	fi # $pass = conv
+
+
+	# Get the name of the library we link against.
+	linklib=
+	if test -n "$old_library" &&
+	   { test "$prefer_static_libs" = yes ||
+	     test "$prefer_static_libs,$installed" = "built,no"; }; then
+	  linklib=$old_library
+	else
+	  for l in $old_library $library_names; do
+	    linklib="$l"
+	  done
+	fi
+	if test -z "$linklib"; then
+	  func_fatal_error "cannot find name of link library for \`$lib'"
+	fi
+
+	# This library was specified with -dlopen.
+	if test "$pass" = dlopen; then
+	  if test -z "$libdir"; then
+	    func_fatal_error "cannot -dlopen a convenience library: \`$lib'"
+	  fi
+	  if test -z "$dlname" ||
+	     test "$dlopen_support" != yes ||
+	     test "$build_libtool_libs" = no; then
+	    # If there is no dlname, no dlopen support or we're linking
+	    # statically, we need to preload.  We also need to preload any
+	    # dependent libraries so libltdl's deplib preloader doesn't
+	    # bomb out in the load deplibs phase.
+	    func_append dlprefiles " $lib $dependency_libs"
+	  else
+	    func_append newdlfiles " $lib"
+	  fi
+	  continue
+	fi # $pass = dlopen
+
+	# We need an absolute path.
+	case $ladir in
+	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir="$ladir" ;;
+	*)
+	  abs_ladir=`cd "$ladir" && pwd`
+	  if test -z "$abs_ladir"; then
+	    func_warning "cannot determine absolute directory name of \`$ladir'"
+	    func_warning "passing it literally to the linker, although it might fail"
+	    abs_ladir="$ladir"
+	  fi
+	  ;;
+	esac
+	func_basename "$lib"
+	laname="$func_basename_result"
+
+	# Find the relevant object directory and library name.
+	if test "X$installed" = Xyes; then
+	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    func_warning "library \`$lib' was moved."
+	    dir="$ladir"
+	    absdir="$abs_ladir"
+	    libdir="$abs_ladir"
+	  else
+	    dir="$lt_sysroot$libdir"
+	    absdir="$lt_sysroot$libdir"
+	  fi
+	  test "X$hardcode_automatic" = Xyes && avoidtemprpath=yes
+	else
+	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    dir="$ladir"
+	    absdir="$abs_ladir"
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  else
+	    dir="$ladir/$objdir"
+	    absdir="$abs_ladir/$objdir"
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  fi
+	fi # $installed = yes
+	func_stripname 'lib' '.la' "$laname"
+	name=$func_stripname_result
+
+	# This library was specified with -dlpreopen.
+	if test "$pass" = dlpreopen; then
+	  if test -z "$libdir" && test "$linkmode" = prog; then
+	    func_fatal_error "only libraries may -dlpreopen a convenience library: \`$lib'"
+	  fi
+	  case "$host" in
+	    # special handling for platforms with PE-DLLs.
+	    *cygwin* | *mingw* | *cegcc* )
+	      # Linker will automatically link against shared library if both
+	      # static and shared are present.  Therefore, ensure we extract
+	      # symbols from the import library if a shared library is present
+	      # (otherwise, the dlopen module name will be incorrect).  We do
+	      # this by putting the import library name into $newdlprefiles.
+	      # We recover the dlopen module name by 'saving' the la file
+	      # name in a special purpose variable, and (later) extracting the
+	      # dlname from the la file.
+	      if test -n "$dlname"; then
+	        func_tr_sh "$dir/$linklib"
+	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+	        func_append newdlprefiles " $dir/$linklib"
+	      else
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      fi
+	    ;;
+	    * )
+	      # Prefer using a static library (so that no silly _DYNAMIC symbols
+	      # are required to link).
+	      if test -n "$old_library"; then
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      # Otherwise, use the dlname, so that lt_dlopen finds it.
+	      elif test -n "$dlname"; then
+	        func_append newdlprefiles " $dir/$dlname"
+	      else
+	        func_append newdlprefiles " $dir/$linklib"
+	      fi
+	    ;;
+	  esac
+	fi # $pass = dlpreopen
+
+	if test -z "$libdir"; then
+	  # Link the convenience library
+	  if test "$linkmode" = lib; then
+	    deplibs="$dir/$old_library $deplibs"
+	  elif test "$linkmode,$pass" = "prog,link"; then
+	    compile_deplibs="$dir/$old_library $compile_deplibs"
+	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
+	  else
+	    deplibs="$lib $deplibs" # used for prog,scan pass
+	  fi
+	  continue
+	fi
+
+
+	if test "$linkmode" = prog && test "$pass" != link; then
+	  func_append newlib_search_path " $ladir"
+	  deplibs="$lib $deplibs"
+
+	  linkalldeplibs=no
+	  if test "$link_all_deplibs" != no || test -z "$library_names" ||
+	     test "$build_libtool_libs" = no; then
+	    linkalldeplibs=yes
+	  fi
+
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    case $deplib in
+	    -L*) func_stripname '-L' '' "$deplib"
+	         func_resolve_sysroot "$func_stripname_result"
+	         func_append newlib_search_path " $func_resolve_sysroot_result"
+		 ;;
+	    esac
+	    # Need to link against all dependency_libs?
+	    if test "$linkalldeplibs" = yes; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      # Need to hardcode shared library paths
+	      # or/and link against static libraries
+	      newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    if $opt_preserve_dup_deps ; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done # for deplib
+	  continue
+	fi # $linkmode = prog...
+
+	if test "$linkmode,$pass" = "prog,link"; then
+	  if test -n "$library_names" &&
+	     { { test "$prefer_static_libs" = no ||
+	         test "$prefer_static_libs,$installed" = "built,yes"; } ||
+	       test -z "$old_library"; }; then
+	    # We need to hardcode the library path
+	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath" ; then
+	      # Make sure the rpath contains only unique directories.
+	      case "$temp_rpath:" in
+	      *"$absdir:"*) ;;
+	      *) func_append temp_rpath "$absdir:" ;;
+	      esac
+	    fi
+
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi # $linkmode,$pass = prog,link...
+
+	  if test "$alldeplibs" = yes &&
+	     { test "$deplibs_check_method" = pass_all ||
+	       { test "$build_libtool_libs" = yes &&
+		 test -n "$library_names"; }; }; then
+	    # We only need to search for static libraries
+	    continue
+	  fi
+	fi
+
+	link_static=no # Whether the deplib will be linked statically
+	use_static_libs=$prefer_static_libs
+	if test "$use_static_libs" = built && test "$installed" = yes; then
+	  use_static_libs=no
+	fi
+	if test -n "$library_names" &&
+	   { test "$use_static_libs" = no || test -z "$old_library"; }; then
+	  case $host in
+	  *cygwin* | *mingw* | *cegcc*)
+	      # No point in relinking DLLs because paths are not encoded
+	      func_append notinst_deplibs " $lib"
+	      need_relink=no
+	    ;;
+	  *)
+	    if test "$installed" = no; then
+	      func_append notinst_deplibs " $lib"
+	      need_relink=yes
+	    fi
+	    ;;
+	  esac
+	  # This is a shared library
+
+	  # Warn about portability, can't link against -module's on some
+	  # systems (darwin).  Don't bleat about dlopened modules though!
+	  dlopenmodule=""
+	  for dlpremoduletest in $dlprefiles; do
+	    if test "X$dlpremoduletest" = "X$lib"; then
+	      dlopenmodule="$dlpremoduletest"
+	      break
+	    fi
+	  done
+	  if test -z "$dlopenmodule" && test "$shouldnotlink" = yes && test "$pass" = link; then
+	    echo
+	    if test "$linkmode" = prog; then
+	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
+	    else
+	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
+	    fi
+	    $ECHO "*** $linklib is not portable!"
+	  fi
+	  if test "$linkmode" = lib &&
+	     test "$hardcode_into_libs" = yes; then
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi
+
+	  if test -n "$old_archive_from_expsyms_cmds"; then
+	    # figure out the soname
+	    set dummy $library_names
+	    shift
+	    realname="$1"
+	    shift
+	    libname=`eval "\\$ECHO \"$libname_spec\""`
+	    # use dlname if we got it. it's perfectly good, no?
+	    if test -n "$dlname"; then
+	      soname="$dlname"
+	    elif test -n "$soname_spec"; then
+	      # bleh windows
+	      case $host in
+	      *cygwin* | mingw* | *cegcc*)
+	        func_arith $current - $age
+		major=$func_arith_result
+		versuffix="-$major"
+		;;
+	      esac
+	      eval soname=\"$soname_spec\"
+	    else
+	      soname="$realname"
+	    fi
+
+	    # Make a new name for the extract_expsyms_cmds to use
+	    soroot="$soname"
+	    func_basename "$soroot"
+	    soname="$func_basename_result"
+	    func_stripname 'lib' '.dll' "$soname"
+	    newlib=libimp-$func_stripname_result.a
+
+	    # If the library has no export list, then create one now
+	    if test -f "$output_objdir/$soname-def"; then :
+	    else
+	      func_verbose "extracting exported symbol list from \`$soname'"
+	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
+	    fi
+
+	    # Create $newlib
+	    if test -f "$output_objdir/$newlib"; then :; else
+	      func_verbose "generating import library for \`$soname'"
+	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
+	    fi
+	    # make sure the library variables are pointing to the new library
+	    dir=$output_objdir
+	    linklib=$newlib
+	  fi # test -n "$old_archive_from_expsyms_cmds"
+
+	  if test "$linkmode" = prog || test "$opt_mode" != relink; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    lib_linked=yes
+	    case $hardcode_action in
+	    immediate | unsupported)
+	      if test "$hardcode_direct" = no; then
+		add="$dir/$linklib"
+		case $host in
+		  *-*-sco3.2v5.0.[024]*) add_dir="-L$dir" ;;
+		  *-*-sysv4*uw2*) add_dir="-L$dir" ;;
+		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
+		    *-*-unixware7*) add_dir="-L$dir" ;;
+		  *-*-darwin* )
+		    # if the lib is a (non-dlopened) module then we can not
+		    # link against it, someone is ignoring the earlier warnings
+		    if /usr/bin/file -L $add 2> /dev/null |
+			 $GREP ": [^:]* bundle" >/dev/null ; then
+		      if test "X$dlopenmodule" != "X$lib"; then
+			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
+			if test -z "$old_library" ; then
+			  echo
+			  echo "*** And there doesn't seem to be a static archive available"
+			  echo "*** The link will probably fail, sorry"
+			else
+			  add="$dir/$old_library"
+			fi
+		      elif test -n "$old_library"; then
+			add="$dir/$old_library"
+		      fi
+		    fi
+		esac
+	      elif test "$hardcode_minus_L" = no; then
+		case $host in
+		*-*-sunos*) add_shlibpath="$dir" ;;
+		esac
+		add_dir="-L$dir"
+		add="-l$name"
+	      elif test "$hardcode_shlibpath_var" = no; then
+		add_shlibpath="$dir"
+		add="-l$name"
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    relink)
+	      if test "$hardcode_direct" = yes &&
+	         test "$hardcode_direct_absolute" = no; then
+		add="$dir/$linklib"
+	      elif test "$hardcode_minus_L" = yes; then
+		add_dir="-L$absdir"
+		# Try looking first in the location we're being installed to.
+		if test -n "$inst_prefix_dir"; then
+		  case $libdir in
+		    [\\/]*)
+		      func_append add_dir " -L$inst_prefix_dir$libdir"
+		      ;;
+		  esac
+		fi
+		add="-l$name"
+	      elif test "$hardcode_shlibpath_var" = yes; then
+		add_shlibpath="$dir"
+		add="-l$name"
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    *) lib_linked=no ;;
+	    esac
+
+	    if test "$lib_linked" != yes; then
+	      func_fatal_configuration "unsupported hardcode properties"
+	    fi
+
+	    if test -n "$add_shlibpath"; then
+	      case :$compile_shlibpath: in
+	      *":$add_shlibpath:"*) ;;
+	      *) func_append compile_shlibpath "$add_shlibpath:" ;;
+	      esac
+	    fi
+	    if test "$linkmode" = prog; then
+	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	      if test "$hardcode_direct" != yes &&
+		 test "$hardcode_minus_L" != yes &&
+		 test "$hardcode_shlibpath_var" = yes; then
+		case :$finalize_shlibpath: in
+		*":$libdir:"*) ;;
+		*) func_append finalize_shlibpath "$libdir:" ;;
+		esac
+	      fi
+	    fi
+	  fi
+
+	  if test "$linkmode" = prog || test "$opt_mode" = relink; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    # Finalize command for both is simple: just hardcode it.
+	    if test "$hardcode_direct" = yes &&
+	       test "$hardcode_direct_absolute" = no; then
+	      add="$libdir/$linklib"
+	    elif test "$hardcode_minus_L" = yes; then
+	      add_dir="-L$libdir"
+	      add="-l$name"
+	    elif test "$hardcode_shlibpath_var" = yes; then
+	      case :$finalize_shlibpath: in
+	      *":$libdir:"*) ;;
+	      *) func_append finalize_shlibpath "$libdir:" ;;
+	      esac
+	      add="-l$name"
+	    elif test "$hardcode_automatic" = yes; then
+	      if test -n "$inst_prefix_dir" &&
+		 test -f "$inst_prefix_dir$libdir/$linklib" ; then
+		add="$inst_prefix_dir$libdir/$linklib"
+	      else
+		add="$libdir/$linklib"
+	      fi
+	    else
+	      # We cannot seem to hardcode it, guess we'll fake it.
+	      add_dir="-L$libdir"
+	      # Try looking first in the location we're being installed to.
+	      if test -n "$inst_prefix_dir"; then
+		case $libdir in
+		  [\\/]*)
+		    func_append add_dir " -L$inst_prefix_dir$libdir"
+		    ;;
+		esac
+	      fi
+	      add="-l$name"
+	    fi
+
+	    if test "$linkmode" = prog; then
+	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	    fi
+	  fi
+	elif test "$linkmode" = prog; then
+	  # Here we assume that one of hardcode_direct or hardcode_minus_L
+	  # is not unsupported.  This is valid on all known static and
+	  # shared platforms.
+	  if test "$hardcode_direct" != unsupported; then
+	    test -n "$old_library" && linklib="$old_library"
+	    compile_deplibs="$dir/$linklib $compile_deplibs"
+	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
+	  else
+	    compile_deplibs="-l$name -L$dir $compile_deplibs"
+	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+	  fi
+	elif test "$build_libtool_libs" = yes; then
+	  # Not a shared library
+	  if test "$deplibs_check_method" != pass_all; then
+	    # We're trying link a shared library against a static one
+	    # but the system doesn't support it.
+
+	    # Just print a warning and add the library to dependency_libs so
+	    # that the program can be linked against the static library.
+	    echo
+	    $ECHO "*** Warning: This system can not link to static lib archive $lib."
+	    echo "*** I have the capability to make that library automatically link in when"
+	    echo "*** you link to this library.  But I can only do this if you have a"
+	    echo "*** shared version of the library, which you do not appear to have."
+	    if test "$module" = yes; then
+	      echo "*** But as you try to build a module library, libtool will still create "
+	      echo "*** a static module, that should work as long as the dlopening application"
+	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
+	      if test -z "$global_symbol_pipe"; then
+		echo
+		echo "*** However, this would only work if libtool was able to extract symbol"
+		echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+		echo "*** not find such a program.  So, this module is probably useless."
+		echo "*** \`nm' from GNU binutils and a full rebuild may help."
+	      fi
+	      if test "$build_old_libs" = no; then
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  else
+	    deplibs="$dir/$old_library $deplibs"
+	    link_static=yes
+	  fi
+	fi # link shared/static library?
+
+	if test "$linkmode" = lib; then
+	  if test -n "$dependency_libs" &&
+	     { test "$hardcode_into_libs" != yes ||
+	       test "$build_old_libs" = yes ||
+	       test "$link_static" = yes; }; then
+	    # Extract -R from dependency_libs
+	    temp_deplibs=
+	    for libdir in $dependency_libs; do
+	      case $libdir in
+	      -R*) func_stripname '-R' '' "$libdir"
+	           temp_xrpath=$func_stripname_result
+		   case " $xrpath " in
+		   *" $temp_xrpath "*) ;;
+		   *) func_append xrpath " $temp_xrpath";;
+		   esac;;
+	      *) func_append temp_deplibs " $libdir";;
+	      esac
+	    done
+	    dependency_libs="$temp_deplibs"
+	  fi
+
+	  func_append newlib_search_path " $absdir"
+	  # Link against this library
+	  test "$link_static" = no && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+	  # ... and its dependency_libs
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    newdependency_libs="$deplib $newdependency_libs"
+	    case $deplib in
+              -L*) func_stripname '-L' '' "$deplib"
+                   func_resolve_sysroot "$func_stripname_result";;
+              *) func_resolve_sysroot "$deplib" ;;
+            esac
+	    if $opt_preserve_dup_deps ; then
+	      case "$tmp_libs " in
+	      *" $func_resolve_sysroot_result "*)
+                func_append specialdeplibs " $func_resolve_sysroot_result" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $func_resolve_sysroot_result"
+	  done
+
+	  if test "$link_all_deplibs" != no; then
+	    # Add the search paths of all dependency libraries
+	    for deplib in $dependency_libs; do
+	      path=
+	      case $deplib in
+	      -L*) path="$deplib" ;;
+	      *.la)
+	        func_resolve_sysroot "$deplib"
+	        deplib=$func_resolve_sysroot_result
+	        func_dirname "$deplib" "" "."
+		dir=$func_dirname_result
+		# We need an absolute path.
+		case $dir in
+		[\\/]* | [A-Za-z]:[\\/]*) absdir="$dir" ;;
+		*)
+		  absdir=`cd "$dir" && pwd`
+		  if test -z "$absdir"; then
+		    func_warning "cannot determine absolute directory name of \`$dir'"
+		    absdir="$dir"
+		  fi
+		  ;;
+		esac
+		if $GREP "^installed=no" $deplib > /dev/null; then
+		case $host in
+		*-*-darwin*)
+		  depdepl=
+		  eval deplibrary_names=`${SED} -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+		  if test -n "$deplibrary_names" ; then
+		    for tmp in $deplibrary_names ; do
+		      depdepl=$tmp
+		    done
+		    if test -f "$absdir/$objdir/$depdepl" ; then
+		      depdepl="$absdir/$objdir/$depdepl"
+		      darwin_install_name=`${OTOOL} -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+                      if test -z "$darwin_install_name"; then
+                          darwin_install_name=`${OTOOL64} -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
+                      fi
+		      func_append compiler_flags " ${wl}-dylib_file ${wl}${darwin_install_name}:${depdepl}"
+		      func_append linker_flags " -dylib_file ${darwin_install_name}:${depdepl}"
+		      path=
+		    fi
+		  fi
+		  ;;
+		*)
+		  path="-L$absdir/$objdir"
+		  ;;
+		esac
+		else
+		  eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		  test -z "$libdir" && \
+		    func_fatal_error "\`$deplib' is not a valid libtool archive"
+		  test "$absdir" != "$libdir" && \
+		    func_warning "\`$deplib' seems to be moved"
+
+		  path="-L$absdir"
+		fi
+		;;
+	      esac
+	      case " $deplibs " in
+	      *" $path "*) ;;
+	      *) deplibs="$path $deplibs" ;;
+	      esac
+	    done
+	  fi # link_all_deplibs != no
+	fi # linkmode = lib
+      done # for deplib in $libs
+      if test "$pass" = link; then
+	if test "$linkmode" = "prog"; then
+	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
+	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
+	else
+	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	fi
+      fi
+      dependency_libs="$newdependency_libs"
+      if test "$pass" = dlpreopen; then
+	# Link the dlpreopened libraries before other libraries
+	for deplib in $save_deplibs; do
+	  deplibs="$deplib $deplibs"
+	done
+      fi
+      if test "$pass" != dlopen; then
+	if test "$pass" != conv; then
+	  # Make sure lib_search_path contains only unique directories.
+	  lib_search_path=
+	  for dir in $newlib_search_path; do
+	    case "$lib_search_path " in
+	    *" $dir "*) ;;
+	    *) func_append lib_search_path " $dir" ;;
+	    esac
+	  done
+	  newlib_search_path=
+	fi
+
+	if test "$linkmode,$pass" != "prog,link"; then
+	  vars="deplibs"
+	else
+	  vars="compile_deplibs finalize_deplibs"
+	fi
+	for var in $vars dependency_libs; do
+	  # Add libraries to $var in reverse order
+	  eval tmp_libs=\"\$$var\"
+	  new_libs=
+	  for deplib in $tmp_libs; do
+	    # FIXME: Pedantically, this is the right thing to do, so
+	    #        that some nasty dependency loop isn't accidentally
+	    #        broken:
+	    #new_libs="$deplib $new_libs"
+	    # Pragmatically, this seems to cause very few problems in
+	    # practice:
+	    case $deplib in
+	    -L*) new_libs="$deplib $new_libs" ;;
+	    -R*) ;;
+	    *)
+	      # And here is the reason: when a library appears more
+	      # than once as an explicit dependence of a library, or
+	      # is implicitly linked in more than once by the
+	      # compiler, it is considered special, and multiple
+	      # occurrences thereof are not removed.  Compare this
+	      # with having the same library being listed as a
+	      # dependency of multiple other libraries: in this case,
+	      # we know (pedantically, we assume) the library does not
+	      # need to be listed more than once, so we keep only the
+	      # last copy.  This is not always right, but it is rare
+	      # enough that we require users that really mean to play
+	      # such unportable linking tricks to link the library
+	      # using -Wl,-lname, so that libtool does not consider it
+	      # for duplicate removal.
+	      case " $specialdeplibs " in
+	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
+	      *)
+		case " $new_libs " in
+		*" $deplib "*) ;;
+		*) new_libs="$deplib $new_libs" ;;
+		esac
+		;;
+	      esac
+	      ;;
+	    esac
+	  done
+	  tmp_libs=
+	  for deplib in $new_libs; do
+	    case $deplib in
+	    -L*)
+	      case " $tmp_libs " in
+	      *" $deplib "*) ;;
+	      *) func_append tmp_libs " $deplib" ;;
+	      esac
+	      ;;
+	    *) func_append tmp_libs " $deplib" ;;
+	    esac
+	  done
+	  eval $var=\"$tmp_libs\"
+	done # for var
+      fi
+      # Last step: remove runtime libs from dependency_libs
+      # (they stay in deplibs)
+      tmp_libs=
+      for i in $dependency_libs ; do
+	case " $predeps $postdeps $compiler_lib_search_path " in
+	*" $i "*)
+	  i=""
+	  ;;
+	esac
+	if test -n "$i" ; then
+	  func_append tmp_libs " $i"
+	fi
+      done
+      dependency_libs=$tmp_libs
+    done # for pass
+    if test "$linkmode" = prog; then
+      dlfiles="$newdlfiles"
+    fi
+    if test "$linkmode" = prog || test "$linkmode" = lib; then
+      dlprefiles="$newdlprefiles"
+    fi
+
+    case $linkmode in
+    oldlib)
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+	func_warning "\`-dlopen' is ignored for archives"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "\`-l' and \`-L' are ignored for archives" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "\`-rpath' is ignored for archives"
+
+      test -n "$xrpath" && \
+	func_warning "\`-R' is ignored for archives"
+
+      test -n "$vinfo" && \
+	func_warning "\`-version-info/-version-number' is ignored for archives"
+
+      test -n "$release" && \
+	func_warning "\`-release' is ignored for archives"
+
+      test -n "$export_symbols$export_symbols_regex" && \
+	func_warning "\`-export-symbols' is ignored for archives"
+
+      # Now set the variables for building old libraries.
+      build_libtool_libs=no
+      oldlibs="$output"
+      func_append objs "$old_deplibs"
+      ;;
+
+    lib)
+      # Make sure we only generate libraries of the form `libNAME.la'.
+      case $outputname in
+      lib*)
+	func_stripname 'lib' '.la' "$outputname"
+	name=$func_stripname_result
+	eval shared_ext=\"$shrext_cmds\"
+	eval libname=\"$libname_spec\"
+	;;
+      *)
+	test "$module" = no && \
+	  func_fatal_help "libtool library \`$output' must begin with \`lib'"
+
+	if test "$need_lib_prefix" != no; then
+	  # Add the "lib" prefix for modules if required
+	  func_stripname '' '.la' "$outputname"
+	  name=$func_stripname_result
+	  eval shared_ext=\"$shrext_cmds\"
+	  eval libname=\"$libname_spec\"
+	else
+	  func_stripname '' '.la' "$outputname"
+	  libname=$func_stripname_result
+	fi
+	;;
+      esac
+
+      if test -n "$objs"; then
+	if test "$deplibs_check_method" != pass_all; then
+	  func_fatal_error "cannot build libtool library \`$output' from non-libtool objects on this host:$objs"
+	else
+	  echo
+	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
+	  $ECHO "*** objects $objs is not portable!"
+	  func_append libobjs " $objs"
+	fi
+      fi
+
+      test "$dlself" != no && \
+	func_warning "\`-dlopen self' is ignored for libtool libraries"
+
+      set dummy $rpath
+      shift
+      test "$#" -gt 1 && \
+	func_warning "ignoring multiple \`-rpath's for a libtool library"
+
+      install_libdir="$1"
+
+      oldlibs=
+      if test -z "$rpath"; then
+	if test "$build_libtool_libs" = yes; then
+	  # Building a libtool convenience library.
+	  # Some compilers have problems with a `.al' extension so
+	  # convenience libraries should have the same extension an
+	  # archive normally would.
+	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
+	  build_libtool_libs=convenience
+	  build_old_libs=yes
+	fi
+
+	test -n "$vinfo" && \
+	  func_warning "\`-version-info/-version-number' is ignored for convenience libraries"
+
+	test -n "$release" && \
+	  func_warning "\`-release' is ignored for convenience libraries"
+      else
+
+	# Parse the version information argument.
+	save_ifs="$IFS"; IFS=':'
+	set dummy $vinfo 0 0 0
+	shift
+	IFS="$save_ifs"
+
+	test -n "$7" && \
+	  func_fatal_help "too many parameters to \`-version-info'"
+
+	# convert absolute version numbers to libtool ages
+	# this retains compatibility with .la files and attempts
+	# to make the code below a bit more comprehensible
+
+	case $vinfo_number in
+	yes)
+	  number_major="$1"
+	  number_minor="$2"
+	  number_revision="$3"
+	  #
+	  # There are really only two kinds -- those that
+	  # use the current revision as the major version
+	  # and those that subtract age and use age as
+	  # a minor version.  But, then there is irix
+	  # which has an extra 1 added just for fun
+	  #
+	  case $version_type in
+	  # correct linux to gnu/linux during the next big refactor
+	  darwin|linux|osf|windows|none)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age="$number_minor"
+	    revision="$number_revision"
+	    ;;
+	  freebsd-aout|freebsd-elf|qnx|sunos)
+	    current="$number_major"
+	    revision="$number_minor"
+	    age="0"
+	    ;;
+	  irix|nonstopux)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age="$number_minor"
+	    revision="$number_minor"
+	    lt_irix_increment=no
+	    ;;
+	  esac
+	  ;;
+	no)
+	  current="$1"
+	  revision="$2"
+	  age="$3"
+	  ;;
+	esac
+
+	# Check that each of the things are valid numbers.
+	case $current in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "CURRENT \`$current' must be a nonnegative integer"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $revision in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "REVISION \`$revision' must be a nonnegative integer"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $age in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "AGE \`$age' must be a nonnegative integer"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	if test "$age" -gt "$current"; then
+	  func_error "AGE \`$age' is greater than the current interface number \`$current'"
+	  func_fatal_error "\`$vinfo' is not valid version information"
+	fi
+
+	# Calculate the version variables.
+	major=
+	versuffix=
+	verstring=
+	case $version_type in
+	none) ;;
+
+	darwin)
+	  # Like Linux, but with the current version available in
+	  # verstring for coding it into the library header
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix="$major.$age.$revision"
+	  # Darwin ld doesn't like 0 for these options...
+	  func_arith $current + 1
+	  minor_current=$func_arith_result
+	  xlcverstring="${wl}-compatibility_version ${wl}$minor_current ${wl}-current_version ${wl}$minor_current.$revision"
+	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+	  ;;
+
+	freebsd-aout)
+	  major=".$current"
+	  versuffix=".$current.$revision";
+	  ;;
+
+	freebsd-elf)
+	  major=".$current"
+	  versuffix=".$current"
+	  ;;
+
+	irix | nonstopux)
+	  if test "X$lt_irix_increment" = "Xno"; then
+	    func_arith $current - $age
+	  else
+	    func_arith $current - $age + 1
+	  fi
+	  major=$func_arith_result
+
+	  case $version_type in
+	    nonstopux) verstring_prefix=nonstopux ;;
+	    *)         verstring_prefix=sgi ;;
+	  esac
+	  verstring="$verstring_prefix$major.$revision"
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$revision
+	  while test "$loop" -ne 0; do
+	    func_arith $revision - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring="$verstring_prefix$major.$iface:$verstring"
+	  done
+
+	  # Before this point, $major must not contain `.'.
+	  major=.$major
+	  versuffix="$major.$revision"
+	  ;;
+
+	linux) # correct to gnu/linux during the next big refactor
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix="$major.$age.$revision"
+	  ;;
+
+	osf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=".$current.$age.$revision"
+	  verstring="$current.$age.$revision"
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$age
+	  while test "$loop" -ne 0; do
+	    func_arith $current - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring="$verstring:${iface}.0"
+	  done
+
+	  # Make executables depend on our current version.
+	  func_append verstring ":${current}.0"
+	  ;;
+
+	qnx)
+	  major=".$current"
+	  versuffix=".$current"
+	  ;;
+
+	sunos)
+	  major=".$current"
+	  versuffix=".$current.$revision"
+	  ;;
+
+	windows)
+	  # Use '-' rather than '.', since we only want one
+	  # extension on DOS 8.3 filesystems.
+	  func_arith $current - $age
+	  major=$func_arith_result
+	  versuffix="-$major"
+	  ;;
+
+	*)
+	  func_fatal_configuration "unknown library version type \`$version_type'"
+	  ;;
+	esac
+
+	# Clear the version info if we defaulted, and they specified a release.
+	if test -z "$vinfo" && test -n "$release"; then
+	  major=
+	  case $version_type in
+	  darwin)
+	    # we can't check for "0.0" in archive_cmds due to quoting
+	    # problems, so we reset it completely
+	    verstring=
+	    ;;
+	  *)
+	    verstring="0.0"
+	    ;;
+	  esac
+	  if test "$need_version" = no; then
+	    versuffix=
+	  else
+	    versuffix=".0.0"
+	  fi
+	fi
+
+	# Remove version info from name if versioning should be avoided
+	if test "$avoid_version" = yes && test "$need_version" = no; then
+	  major=
+	  versuffix=
+	  verstring=""
+	fi
+
+	# Check to see if the archive will have undefined symbols.
+	if test "$allow_undefined" = yes; then
+	  if test "$allow_undefined_flag" = unsupported; then
+	    func_warning "undefined symbols not allowed in $host shared libraries"
+	    build_libtool_libs=no
+	    build_old_libs=yes
+	  fi
+	else
+	  # Don't allow undefined symbols.
+	  allow_undefined_flag="$no_undefined_flag"
+	fi
+
+      fi
+
+      func_generate_dlsyms "$libname" "$libname" "yes"
+      func_append libobjs " $symfileobj"
+      test "X$libobjs" = "X " && libobjs=
+
+      if test "$opt_mode" != relink; then
+	# Remove our outputs, but don't remove object files since they
+	# may have been created when compiling PIC objects.
+	removelist=
+	tempremovelist=`$ECHO "$output_objdir/*"`
+	for p in $tempremovelist; do
+	  case $p in
+	    *.$objext | *.gcno)
+	       ;;
+	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/${libname}${release}.*)
+	       if test "X$precious_files_regex" != "X"; then
+		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
+		 then
+		   continue
+		 fi
+	       fi
+	       func_append removelist " $p"
+	       ;;
+	    *) ;;
+	  esac
+	done
+	test -n "$removelist" && \
+	  func_show_eval "${RM}r \$removelist"
+      fi
+
+      # Now set the variables for building old libraries.
+      if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then
+	func_append oldlibs " $output_objdir/$libname.$libext"
+
+	# Transform .lo files to .o files.
+	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; $lo2o" | $NL2SP`
+      fi
+
+      # Eliminate all temporary directories.
+      #for path in $notinst_path; do
+      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
+      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
+      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
+      #done
+
+      if test -n "$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	temp_xrpath=
+	for libdir in $xrpath; do
+	  func_replace_sysroot "$libdir"
+	  func_append temp_xrpath " -R$func_replace_sysroot_result"
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+	if test "$hardcode_into_libs" != yes || test "$build_old_libs" = yes; then
+	  dependency_libs="$temp_xrpath $dependency_libs"
+	fi
+      fi
+
+      # Make sure dlfiles contains only unique files that won't be dlpreopened
+      old_dlfiles="$dlfiles"
+      dlfiles=
+      for lib in $old_dlfiles; do
+	case " $dlprefiles $dlfiles " in
+	*" $lib "*) ;;
+	*) func_append dlfiles " $lib" ;;
+	esac
+      done
+
+      # Make sure dlprefiles contains only unique files
+      old_dlprefiles="$dlprefiles"
+      dlprefiles=
+      for lib in $old_dlprefiles; do
+	case "$dlprefiles " in
+	*" $lib "*) ;;
+	*) func_append dlprefiles " $lib" ;;
+	esac
+      done
+
+      if test "$build_libtool_libs" = yes; then
+	if test -n "$rpath"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # these systems don't actually have a c library (as such)!
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C library is in the System framework
+	    func_append deplibs " System.ltframework"
+	    ;;
+	  *-*-netbsd*)
+	    # Don't link with libc until the a.out ld.so is fixed.
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    ;;
+	  *)
+	    # Add libc to deplibs on all other systems if necessary.
+	    if test "$build_libtool_need_lc" = "yes"; then
+	      func_append deplibs " -lc"
+	    fi
+	    ;;
+	  esac
+	fi
+
+	# Transform deplibs into only deplibs that can be linked in shared.
+	name_save=$name
+	libname_save=$libname
+	release_save=$release
+	versuffix_save=$versuffix
+	major_save=$major
+	# I'm not sure if I'm treating the release correctly.  I think
+	# release should show up in the -l (ie -lgmp5) so we don't want to
+	# add it in twice.  Is that correct?
+	release=""
+	versuffix=""
+	major=""
+	newdeplibs=
+	droppeddeps=no
+	case $deplibs_check_method in
+	pass_all)
+	  # Don't check for shared/static.  Everything works.
+	  # This might be a little naive.  We might want to check
+	  # whether the library exists or not.  But this is on
+	  # osf3 & osf4 and I'm not really sure... Just
+	  # implementing what was already the behavior.
+	  newdeplibs=$deplibs
+	  ;;
+	test_compile)
+	  # This code stresses the "libraries are programs" paradigm to its
+	  # limits. Maybe even breaks it.  We compile a program, linking it
+	  # against the deplibs as a proxy for the library.  Then we can check
+	  # whether they linked in statically or dynamically with ldd.
+	  $opt_dry_run || $RM conftest.c
+	  cat > conftest.c <<EOF
+	  int main() { return 0; }
+EOF
+	  $opt_dry_run || $RM conftest
+	  if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
+	    ldd_output=`ldd conftest`
+	    for i in $deplibs; do
+	      case $i in
+	      -l*)
+		func_stripname -l '' "$i"
+		name=$func_stripname_result
+		if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		  case " $predeps $postdeps " in
+		  *" $i "*)
+		    func_append newdeplibs " $i"
+		    i=""
+		    ;;
+		  esac
+		fi
+		if test -n "$i" ; then
+		  libname=`eval "\\$ECHO \"$libname_spec\""`
+		  deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+		  set dummy $deplib_matches; shift
+		  deplib_match=$1
+		  if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+		    func_append newdeplibs " $i"
+		  else
+		    droppeddeps=yes
+		    echo
+		    $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+		    echo "*** I have the capability to make that library automatically link in when"
+		    echo "*** you link to this library.  But I can only do this if you have a"
+		    echo "*** shared version of the library, which I believe you do not have"
+		    echo "*** because a test_compile did reveal that the linker did not use it for"
+		    echo "*** its dynamic dependency list that programs get resolved with at runtime."
+		  fi
+		fi
+		;;
+	      *)
+		func_append newdeplibs " $i"
+		;;
+	      esac
+	    done
+	  else
+	    # Error occurred in the first compile.  Let's try to salvage
+	    # the situation: Compile a separate program for each library.
+	    for i in $deplibs; do
+	      case $i in
+	      -l*)
+		func_stripname -l '' "$i"
+		name=$func_stripname_result
+		$opt_dry_run || $RM conftest
+		if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
+		  ldd_output=`ldd conftest`
+		  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		    case " $predeps $postdeps " in
+		    *" $i "*)
+		      func_append newdeplibs " $i"
+		      i=""
+		      ;;
+		    esac
+		  fi
+		  if test -n "$i" ; then
+		    libname=`eval "\\$ECHO \"$libname_spec\""`
+		    deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+		    set dummy $deplib_matches; shift
+		    deplib_match=$1
+		    if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then
+		      func_append newdeplibs " $i"
+		    else
+		      droppeddeps=yes
+		      echo
+		      $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+		      echo "*** I have the capability to make that library automatically link in when"
+		      echo "*** you link to this library.  But I can only do this if you have a"
+		      echo "*** shared version of the library, which you do not appear to have"
+		      echo "*** because a test_compile did reveal that the linker did not use this one"
+		      echo "*** as a dynamic dependency that programs can get resolved with at runtime."
+		    fi
+		  fi
+		else
+		  droppeddeps=yes
+		  echo
+		  $ECHO "*** Warning!  Library $i is needed by this library but I was not able to"
+		  echo "*** make it link in!  You will probably need to install it or some"
+		  echo "*** library that it depends on before this library will be fully"
+		  echo "*** functional.  Installing it before continuing would be even better."
+		fi
+		;;
+	      *)
+		func_append newdeplibs " $i"
+		;;
+	      esac
+	    done
+	  fi
+	  ;;
+	file_magic*)
+	  set dummy $deplibs_check_method; shift
+	  file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=""
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib" ; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		if test -n "$file_magic_glob"; then
+		  libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
+		else
+		  libnameglob=$libname
+		fi
+		test "$want_nocaseglob" = yes && nocaseglob=`shopt -p nocaseglob`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  if test "$want_nocaseglob" = yes; then
+		    shopt -s nocaseglob
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		    $nocaseglob
+		  else
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		  fi
+		  for potent_lib in $potential_libs; do
+		      # Follow soft links.
+		      if ls -lLd "$potent_lib" 2>/dev/null |
+			 $GREP " -> " >/dev/null; then
+			continue
+		      fi
+		      # The statement above tries to avoid entering an
+		      # endless loop below, in case of cyclic links.
+		      # We might still enter an endless loop, since a link
+		      # loop can be closed while we follow links,
+		      # but so what?
+		      potlib="$potent_lib"
+		      while test -h "$potlib" 2>/dev/null; do
+			potliblink=`ls -ld $potlib | ${SED} 's/.* -> //'`
+			case $potliblink in
+			[\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";;
+			*) potlib=`$ECHO "$potlib" | $SED 's,[^/]*$,,'`"$potliblink";;
+			esac
+		      done
+		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
+			 $SED -e 10q |
+			 $EGREP "$file_magic_regex" > /dev/null; then
+			func_append newdeplibs " $a_deplib"
+			a_deplib=""
+			break 2
+		      fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib" ; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib" ; then
+		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a file magic. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	match_pattern*)
+	  set dummy $deplibs_check_method; shift
+	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=""
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib" ; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+		  for potent_lib in $potential_libs; do
+		    potlib="$potent_lib" # see symlink-check above in file_magic test
+		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
+		       $EGREP "$match_pattern_regex" > /dev/null; then
+		      func_append newdeplibs " $a_deplib"
+		      a_deplib=""
+		      break 2
+		    fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib" ; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib" ; then
+		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	none | unknown | *)
+	  newdeplibs=""
+	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
+	  if test "X$allow_libtool_libs_with_static_runtimes" = "Xyes" ; then
+	    for i in $predeps $postdeps ; do
+	      # can't use Xsed below, because $i might contain '/'
+	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s,$i,,"`
+	    done
+	  fi
+	  case $tmp_deplibs in
+	  *[!\	\ ]*)
+	    echo
+	    if test "X$deplibs_check_method" = "Xnone"; then
+	      echo "*** Warning: inter-library dependencies are not supported in this platform."
+	    else
+	      echo "*** Warning: inter-library dependencies are not known to be supported."
+	    fi
+	    echo "*** All declared inter-library dependencies are being dropped."
+	    droppeddeps=yes
+	    ;;
+	  esac
+	  ;;
+	esac
+	versuffix=$versuffix_save
+	major=$major_save
+	release=$release_save
+	libname=$libname_save
+	name=$name_save
+
+	case $host in
+	*-*-rhapsody* | *-*-darwin1.[012])
+	  # On Rhapsody replace the C library with the System framework
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
+	  ;;
+	esac
+
+	if test "$droppeddeps" = yes; then
+	  if test "$module" = yes; then
+	    echo
+	    echo "*** Warning: libtool could not satisfy all declared inter-library"
+	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
+	    echo "*** a static module, that should work as long as the dlopening"
+	    echo "*** application is linked with the -dlopen flag."
+	    if test -z "$global_symbol_pipe"; then
+	      echo
+	      echo "*** However, this would only work if libtool was able to extract symbol"
+	      echo "*** lists from a program, using \`nm' or equivalent, but libtool could"
+	      echo "*** not find such a program.  So, this module is probably useless."
+	      echo "*** \`nm' from GNU binutils and a full rebuild may help."
+	    fi
+	    if test "$build_old_libs" = no; then
+	      oldlibs="$output_objdir/$libname.$libext"
+	      build_libtool_libs=module
+	      build_old_libs=yes
+	    else
+	      build_libtool_libs=no
+	    fi
+	  else
+	    echo "*** The inter-library dependencies that have been dropped here will be"
+	    echo "*** automatically added whenever a program is linked with this library"
+	    echo "*** or is declared to -dlopen it."
+
+	    if test "$allow_undefined" = no; then
+	      echo
+	      echo "*** Since this library must not contain undefined symbols,"
+	      echo "*** because either the platform does not support them or"
+	      echo "*** it was explicitly requested with -no-undefined,"
+	      echo "*** libtool will only create a static version of it."
+	      if test "$build_old_libs" = no; then
+		oldlibs="$output_objdir/$libname.$libext"
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  fi
+	fi
+	# Done checking deplibs!
+	deplibs=$newdeplibs
+      fi
+      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+      case $host in
+	*-*-darwin*)
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  ;;
+      esac
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      deplibs="$new_libs"
+
+      # All the library-specific variables (install_libdir is set above).
+      library_names=
+      old_library=
+      dlname=
+
+      # Test again, we may have decided not to build it any more
+      if test "$build_libtool_libs" = yes; then
+	# Remove ${wl} instances when linking with ld.
+	# FIXME: should test the right _cmds variable.
+	case $archive_cmds in
+	  *\$LD\ *) wl= ;;
+        esac
+	if test "$hardcode_into_libs" = yes; then
+	  # Hardcode the library paths
+	  hardcode_libdirs=
+	  dep_rpath=
+	  rpath="$finalize_rpath"
+	  test "$opt_mode" != relink && rpath="$compile_rpath$rpath"
+	  for libdir in $rpath; do
+	    if test -n "$hardcode_libdir_flag_spec"; then
+	      if test -n "$hardcode_libdir_separator"; then
+		func_replace_sysroot "$libdir"
+		libdir=$func_replace_sysroot_result
+		if test -z "$hardcode_libdirs"; then
+		  hardcode_libdirs="$libdir"
+		else
+		  # Just accumulate the unique libdirs.
+		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		    ;;
+		  *)
+		    func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		    ;;
+		  esac
+		fi
+	      else
+		eval flag=\"$hardcode_libdir_flag_spec\"
+		func_append dep_rpath " $flag"
+	      fi
+	    elif test -n "$runpath_var"; then
+	      case "$perm_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append perm_rpath " $libdir" ;;
+	      esac
+	    fi
+	  done
+	  # Substitute the hardcoded libdirs into the rpath.
+	  if test -n "$hardcode_libdir_separator" &&
+	     test -n "$hardcode_libdirs"; then
+	    libdir="$hardcode_libdirs"
+	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
+	  fi
+	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
+	    # We should set the runpath_var.
+	    rpath=
+	    for dir in $perm_rpath; do
+	      func_append rpath "$dir:"
+	    done
+	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+	  fi
+	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+	fi
+
+	shlibpath="$finalize_shlibpath"
+	test "$opt_mode" != relink && shlibpath="$compile_shlibpath$shlibpath"
+	if test -n "$shlibpath"; then
+	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+	fi
+
+	# Get the real and link names of the library.
+	eval shared_ext=\"$shrext_cmds\"
+	eval library_names=\"$library_names_spec\"
+	set dummy $library_names
+	shift
+	realname="$1"
+	shift
+
+	if test -n "$soname_spec"; then
+	  eval soname=\"$soname_spec\"
+	else
+	  soname="$realname"
+	fi
+	if test -z "$dlname"; then
+	  dlname=$soname
+	fi
+
+	lib="$output_objdir/$realname"
+	linknames=
+	for link
+	do
+	  func_append linknames " $link"
+	done
+
+	# Use standard objects if they are pic
+	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	test "X$libobjs" = "X " && libobjs=
+
+	delfiles=
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
+	  export_symbols="$output_objdir/$libname.uexp"
+	  func_append delfiles " $export_symbols"
+	fi
+
+	orig_export_symbols=
+	case $host_os in
+	cygwin* | mingw* | cegcc*)
+	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
+	    # exporting using user supplied symfile
+	    if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
+	      # and it's NOT already a .def file. Must figure out
+	      # which of the given symbols are data symbols and tag
+	      # them as such. So, trigger use of export_symbols_cmds.
+	      # export_symbols gets reassigned inside the "prepare
+	      # the list of exported symbols" if statement, so the
+	      # include_expsyms logic still works.
+	      orig_export_symbols="$export_symbols"
+	      export_symbols=
+	      always_export_symbols=yes
+	    fi
+	  fi
+	  ;;
+	esac
+
+	# Prepare the list of exported symbols
+	if test -z "$export_symbols"; then
+	  if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then
+	    func_verbose "generating symbol list for \`$libname.la'"
+	    export_symbols="$output_objdir/$libname.exp"
+	    $opt_dry_run || $RM $export_symbols
+	    cmds=$export_symbols_cmds
+	    save_ifs="$IFS"; IFS='~'
+	    for cmd1 in $cmds; do
+	      IFS="$save_ifs"
+	      # Take the normal branch if the nm_file_list_spec branch
+	      # doesn't work or if tool conversion is not needed.
+	      case $nm_file_list_spec~$to_tool_file_cmd in
+		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
+		  try_normal_branch=yes
+		  eval cmd=\"$cmd1\"
+		  func_len " $cmd"
+		  len=$func_len_result
+		  ;;
+		*)
+		  try_normal_branch=no
+		  ;;
+	      esac
+	      if test "$try_normal_branch" = yes \
+		 && { test "$len" -lt "$max_cmd_len" \
+		      || test "$max_cmd_len" -le -1; }
+	      then
+		func_show_eval "$cmd" 'exit $?'
+		skipped_export=false
+	      elif test -n "$nm_file_list_spec"; then
+		func_basename "$output"
+		output_la=$func_basename_result
+		save_libobjs=$libobjs
+		save_output=$output
+		output=${output_objdir}/${output_la}.nm
+		func_to_tool_file "$output"
+		libobjs=$nm_file_list_spec$func_to_tool_file_result
+		func_append delfiles " $output"
+		func_verbose "creating $NM input file list: $output"
+		for obj in $save_libobjs; do
+		  func_to_tool_file "$obj"
+		  $ECHO "$func_to_tool_file_result"
+		done > "$output"
+		eval cmd=\"$cmd1\"
+		func_show_eval "$cmd" 'exit $?'
+		output=$save_output
+		libobjs=$save_libobjs
+		skipped_export=false
+	      else
+		# The command line is too long to execute in one step.
+		func_verbose "using reloadable object file for export list..."
+		skipped_export=:
+		# Break out early, otherwise skipped_export may be
+		# set to false by a later but shorter cmd.
+		break
+	      fi
+	    done
+	    IFS="$save_ifs"
+	    if test -n "$export_symbols_regex" && test "X$skipped_export" != "X:"; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+	fi
+
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  tmp_export_symbols="$export_symbols"
+	  test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
+	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	fi
+
+	if test "X$skipped_export" != "X:" && test -n "$orig_export_symbols"; then
+	  # The given exports_symbols file has to be filtered, so filter it.
+	  func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
+	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	  # 's' commands which not all seds can handle. GNU sed should be fine
+	  # though. Also, the filter scales superlinearly with the number of
+	  # global variables. join(1) would be nice here, but unfortunately
+	  # isn't a blessed tool.
+	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	  func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	  export_symbols=$output_objdir/$libname.def
+	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	fi
+
+	tmp_deplibs=
+	for test_deplib in $deplibs; do
+	  case " $convenience " in
+	  *" $test_deplib "*) ;;
+	  *)
+	    func_append tmp_deplibs " $test_deplib"
+	    ;;
+	  esac
+	done
+	deplibs="$tmp_deplibs"
+
+	if test -n "$convenience"; then
+	  if test -n "$whole_archive_flag_spec" &&
+	    test "$compiler_needs_object" = yes &&
+	    test -z "$libobjs"; then
+	    # extract the archives, so we have objects to list.
+	    # TODO: could optimize this to just extract one archive.
+	    whole_archive_flag_spec=
+	  fi
+	  if test -n "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  else
+	    gentop="$output_objdir/${outputname}x"
+	    func_append generated " $gentop"
+
+	    func_extract_archives $gentop $convenience
+	    func_append libobjs " $func_extract_archives_result"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	fi
+
+	if test "$thread_safe" = yes && test -n "$thread_safe_flag_spec"; then
+	  eval flag=\"$thread_safe_flag_spec\"
+	  func_append linker_flags " $flag"
+	fi
+
+	# Make a backup of the uninstalled library when relinking
+	if test "$opt_mode" = relink; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
+	fi
+
+	# Do each of the archive commands.
+	if test "$module" = yes && test -n "$module_cmds" ; then
+	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	    eval test_cmds=\"$module_expsym_cmds\"
+	    cmds=$module_expsym_cmds
+	  else
+	    eval test_cmds=\"$module_cmds\"
+	    cmds=$module_cmds
+	  fi
+	else
+	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	    eval test_cmds=\"$archive_expsym_cmds\"
+	    cmds=$archive_expsym_cmds
+	  else
+	    eval test_cmds=\"$archive_cmds\"
+	    cmds=$archive_cmds
+	  fi
+	fi
+
+	if test "X$skipped_export" != "X:" &&
+	   func_len " $test_cmds" &&
+	   len=$func_len_result &&
+	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  :
+	else
+	  # The command line is too long to link in one step, link piecewise
+	  # or, if using GNU ld and skipped_export is not :, use a linker
+	  # script.
+
+	  # Save the value of $output and $libobjs because we want to
+	  # use them later.  If we have whole_archive_flag_spec, we
+	  # want to use save_libobjs as it was before
+	  # whole_archive_flag_spec was expanded, because we can't
+	  # assume the linker understands whole_archive_flag_spec.
+	  # This may have to be revisited, in case too many
+	  # convenience libraries get linked in and end up exceeding
+	  # the spec.
+	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	  fi
+	  save_output=$output
+	  func_basename "$output"
+	  output_la=$func_basename_result
+
+	  # Clear the reloadable object creation command queue and
+	  # initialize k to one.
+	  test_cmds=
+	  concat_cmds=
+	  objlist=
+	  last_robj=
+	  k=1
+
+	  if test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "$with_gnu_ld" = yes; then
+	    output=${output_objdir}/${output_la}.lnkscript
+	    func_verbose "creating GNU ld script: $output"
+	    echo 'INPUT (' > $output
+	    for obj in $save_libobjs
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    echo ')' >> $output
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$func_to_tool_file_result
+	  elif test -n "$save_libobjs" && test "X$skipped_export" != "X:" && test "X$file_list_spec" != X; then
+	    output=${output_objdir}/${output_la}.lnk
+	    func_verbose "creating linker input file list: $output"
+	    : > $output
+	    set x $save_libobjs
+	    shift
+	    firstobj=
+	    if test "$compiler_needs_object" = yes; then
+	      firstobj="$1 "
+	      shift
+	    fi
+	    for obj
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
+	  else
+	    if test -n "$save_libobjs"; then
+	      func_verbose "creating reloadable object files..."
+	      output=$output_objdir/$output_la-${k}.$objext
+	      eval test_cmds=\"$reload_cmds\"
+	      func_len " $test_cmds"
+	      len0=$func_len_result
+	      len=$len0
+
+	      # Loop over the list of objects to be linked.
+	      for obj in $save_libobjs
+	      do
+		func_len " $obj"
+		func_arith $len + $func_len_result
+		len=$func_arith_result
+		if test "X$objlist" = X ||
+		   test "$len" -lt "$max_cmd_len"; then
+		  func_append objlist " $obj"
+		else
+		  # The command $test_cmds is almost too long, add a
+		  # command to the queue.
+		  if test "$k" -eq 1 ; then
+		    # The first file doesn't have a previous command to add.
+		    reload_objs=$objlist
+		    eval concat_cmds=\"$reload_cmds\"
+		  else
+		    # All subsequent reloadable object files will link in
+		    # the last one created.
+		    reload_objs="$objlist $last_robj"
+		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
+		  fi
+		  last_robj=$output_objdir/$output_la-${k}.$objext
+		  func_arith $k + 1
+		  k=$func_arith_result
+		  output=$output_objdir/$output_la-${k}.$objext
+		  objlist=" $obj"
+		  func_len " $last_robj"
+		  func_arith $len0 + $func_len_result
+		  len=$func_arith_result
+		fi
+	      done
+	      # Handle the remaining objects by creating one last
+	      # reloadable object file.  All subsequent reloadable object
+	      # files will link in the last one created.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      reload_objs="$objlist $last_robj"
+	      eval concat_cmds=\"\${concat_cmds}$reload_cmds\"
+	      if test -n "$last_robj"; then
+	        eval concat_cmds=\"\${concat_cmds}~\$RM $last_robj\"
+	      fi
+	      func_append delfiles " $output"
+
+	    else
+	      output=
+	    fi
+
+	    if ${skipped_export-false}; then
+	      func_verbose "generating symbol list for \`$libname.la'"
+	      export_symbols="$output_objdir/$libname.exp"
+	      $opt_dry_run || $RM $export_symbols
+	      libobjs=$output
+	      # Append the command to create the export file.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
+	      if test -n "$last_robj"; then
+		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	    fi
+
+	    test -n "$save_libobjs" &&
+	      func_verbose "creating a temporary reloadable object file: $output"
+
+	    # Loop through the commands generated above and execute them.
+	    save_ifs="$IFS"; IFS='~'
+	    for cmd in $concat_cmds; do
+	      IFS="$save_ifs"
+	      $opt_silent || {
+		  func_quote_for_expand "$cmd"
+		  eval "func_echo $func_quote_for_expand_result"
+	      }
+	      $opt_dry_run || eval "$cmd" || {
+		lt_exit=$?
+
+		# Restore the uninstalled library and exit
+		if test "$opt_mode" = relink; then
+		  ( cd "$output_objdir" && \
+		    $RM "${realname}T" && \
+		    $MV "${realname}U" "$realname" )
+		fi
+
+		exit $lt_exit
+	      }
+	    done
+	    IFS="$save_ifs"
+
+	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+
+          if ${skipped_export-false}; then
+	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	      tmp_export_symbols="$export_symbols"
+	      test -n "$orig_export_symbols" && tmp_export_symbols="$orig_export_symbols"
+	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	    fi
+
+	    if test -n "$orig_export_symbols"; then
+	      # The given exports_symbols file has to be filtered, so filter it.
+	      func_verbose "filter symbol list for \`$libname.la' to tag DATA exports"
+	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	      # 's' commands which not all seds can handle. GNU sed should be fine
+	      # though. Also, the filter scales superlinearly with the number of
+	      # global variables. join(1) would be nice here, but unfortunately
+	      # isn't a blessed tool.
+	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	      func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	      export_symbols=$output_objdir/$libname.def
+	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	    fi
+	  fi
+
+	  libobjs=$output
+	  # Restore the value of output.
+	  output=$save_output
+
+	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	  # Expand the library linking commands again to reset the
+	  # value of $libobjs for piecewise linking.
+
+	  # Do each of the archive commands.
+	  if test "$module" = yes && test -n "$module_cmds" ; then
+	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	      cmds=$module_expsym_cmds
+	    else
+	      cmds=$module_cmds
+	    fi
+	  else
+	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	      cmds=$archive_expsym_cmds
+	    else
+	      cmds=$archive_cmds
+	    fi
+	  fi
+	fi
+
+	if test -n "$delfiles"; then
+	  # Append the command to remove temporary files to $cmds.
+	  eval cmds=\"\$cmds~\$RM $delfiles\"
+	fi
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop="$output_objdir/${outputname}x"
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append libobjs " $func_extract_archives_result"
+	  test "X$libobjs" = "X " && libobjs=
+	fi
+
+	save_ifs="$IFS"; IFS='~'
+	for cmd in $cmds; do
+	  IFS="$save_ifs"
+	  eval cmd=\"$cmd\"
+	  $opt_silent || {
+	    func_quote_for_expand "$cmd"
+	    eval "func_echo $func_quote_for_expand_result"
+	  }
+	  $opt_dry_run || eval "$cmd" || {
+	    lt_exit=$?
+
+	    # Restore the uninstalled library and exit
+	    if test "$opt_mode" = relink; then
+	      ( cd "$output_objdir" && \
+	        $RM "${realname}T" && \
+		$MV "${realname}U" "$realname" )
+	    fi
+
+	    exit $lt_exit
+	  }
+	done
+	IFS="$save_ifs"
+
+	# Restore the uninstalled library and exit
+	if test "$opt_mode" = relink; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
+
+	  if test -n "$convenience"; then
+	    if test -z "$whole_archive_flag_spec"; then
+	      func_show_eval '${RM}r "$gentop"'
+	    fi
+	  fi
+
+	  exit $EXIT_SUCCESS
+	fi
+
+	# Create links to the real library.
+	for linkname in $linknames; do
+	  if test "$realname" != "$linkname"; then
+	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
+	  fi
+	done
+
+	# If -module or -export-dynamic was specified, set the dlname.
+	if test "$module" = yes || test "$export_dynamic" = yes; then
+	  # On all known operating systems, these are identical.
+	  dlname="$soname"
+	fi
+      fi
+      ;;
+
+    obj)
+      if test -n "$dlfiles$dlprefiles" || test "$dlself" != no; then
+	func_warning "\`-dlopen' is ignored for objects"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "\`-l' and \`-L' are ignored for objects" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "\`-rpath' is ignored for objects"
+
+      test -n "$xrpath" && \
+	func_warning "\`-R' is ignored for objects"
+
+      test -n "$vinfo" && \
+	func_warning "\`-version-info' is ignored for objects"
+
+      test -n "$release" && \
+	func_warning "\`-release' is ignored for objects"
+
+      case $output in
+      *.lo)
+	test -n "$objs$old_deplibs" && \
+	  func_fatal_error "cannot build library object \`$output' from non-libtool objects"
+
+	libobj=$output
+	func_lo2o "$libobj"
+	obj=$func_lo2o_result
+	;;
+      *)
+	libobj=
+	obj="$output"
+	;;
+      esac
+
+      # Delete the old objects.
+      $opt_dry_run || $RM $obj $libobj
+
+      # Objects from convenience libraries.  This assumes
+      # single-version convenience libraries.  Whenever we create
+      # different ones for PIC/non-PIC, this we'll have to duplicate
+      # the extraction.
+      reload_conv_objs=
+      gentop=
+      # reload_cmds runs $LD directly, so let us get rid of
+      # -Wl from whole_archive_flag_spec and hope we can get by with
+      # turning comma into space..
+      wl=
+
+      if test -n "$convenience"; then
+	if test -n "$whole_archive_flag_spec"; then
+	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
+	  reload_conv_objs=$reload_objs\ `$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+	else
+	  gentop="$output_objdir/${obj}x"
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $convenience
+	  reload_conv_objs="$reload_objs $func_extract_archives_result"
+	fi
+      fi
+
+      # If we're not building shared, we need to use non_pic_objs
+      test "$build_libtool_libs" != yes && libobjs="$non_pic_objects"
+
+      # Create the old-style object.
+      reload_objs="$objs$old_deplibs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.${libext}$/d; /\.lib$/d; $lo2o" | $NL2SP`" $reload_conv_objs" ### testsuite: skip nested quoting test
+
+      output="$obj"
+      func_execute_cmds "$reload_cmds" 'exit $?'
+
+      # Exit if we aren't doing a library object file.
+      if test -z "$libobj"; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      if test "$build_libtool_libs" != yes; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	# Create an invalid libtool object if no PIC, so that we don't
+	# accidentally link it into a program.
+	# $show "echo timestamp > $libobj"
+	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
+	exit $EXIT_SUCCESS
+      fi
+
+      if test -n "$pic_flag" || test "$pic_mode" != default; then
+	# Only do commands if we really have different PIC objects.
+	reload_objs="$libobjs $reload_conv_objs"
+	output="$libobj"
+	func_execute_cmds "$reload_cmds" 'exit $?'
+      fi
+
+      if test -n "$gentop"; then
+	func_show_eval '${RM}r "$gentop"'
+      fi
+
+      exit $EXIT_SUCCESS
+      ;;
+
+    prog)
+      case $host in
+	*cygwin*) func_stripname '' '.exe' "$output"
+	          output=$func_stripname_result.exe;;
+      esac
+      test -n "$vinfo" && \
+	func_warning "\`-version-info' is ignored for programs"
+
+      test -n "$release" && \
+	func_warning "\`-release' is ignored for programs"
+
+      test "$preload" = yes \
+        && test "$dlopen_support" = unknown \
+	&& test "$dlopen_self" = unknown \
+	&& test "$dlopen_self_static" = unknown && \
+	  func_warning "\`LT_INIT([dlopen])' not used. Assuming no dlopen support."
+
+      case $host in
+      *-*-rhapsody* | *-*-darwin1.[012])
+	# On Rhapsody replace the C library is the System framework
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	;;
+      esac
+
+      case $host in
+      *-*-darwin*)
+	# Don't allow lazy linking, it breaks C++ global constructors
+	# But is supposedly fixed on 10.4 or later (yay!).
+	if test "$tagname" = CXX ; then
+	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
+	    10.[0123])
+	      func_append compile_command " ${wl}-bind_at_load"
+	      func_append finalize_command " ${wl}-bind_at_load"
+	    ;;
+	  esac
+	fi
+	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	;;
+      esac
+
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $compile_deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $compile_deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      compile_deplibs="$new_libs"
+
+
+      func_append compile_command " $compile_deplibs"
+      func_append finalize_command " $finalize_deplibs"
+
+      if test -n "$rpath$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	for libdir in $rpath $xrpath; do
+	  # This is the magic to use -rpath.
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+      fi
+
+      # Now hardcode the library paths
+      rpath=
+      hardcode_libdirs=
+      for libdir in $compile_rpath $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs="$libdir"
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append perm_rpath " $libdir" ;;
+	  esac
+	fi
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$libdir:"*) ;;
+	  ::) dllsearchpath=$libdir;;
+	  *) func_append dllsearchpath ":$libdir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir="$hardcode_libdirs"
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      compile_rpath="$rpath"
+
+      rpath=
+      hardcode_libdirs=
+      for libdir in $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs="$libdir"
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$finalize_perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_perm_rpath " $libdir" ;;
+	  esac
+	fi
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir="$hardcode_libdirs"
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      finalize_rpath="$rpath"
+
+      if test -n "$libobjs" && test "$build_old_libs" = yes; then
+	# Transform all the library objects into standard objects.
+	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+      fi
+
+      func_generate_dlsyms "$outputname" "@PROGRAM@" "no"
+
+      # template prelinking step
+      if test -n "$prelink_cmds"; then
+	func_execute_cmds "$prelink_cmds" 'exit $?'
+      fi
+
+      wrappers_required=yes
+      case $host in
+      *cegcc* | *mingw32ce*)
+        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
+        wrappers_required=no
+        ;;
+      *cygwin* | *mingw* )
+        if test "$build_libtool_libs" != yes; then
+          wrappers_required=no
+        fi
+        ;;
+      *)
+        if test "$need_relink" = no || test "$build_libtool_libs" != yes; then
+          wrappers_required=no
+        fi
+        ;;
+      esac
+      if test "$wrappers_required" = no; then
+	# Replace the output file specification.
+	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	link_command="$compile_command$compile_rpath"
+
+	# We have no uninstalled library dependencies, so finalize right now.
+	exit_status=0
+	func_show_eval "$link_command" 'exit_status=$?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	# Delete the generated files.
+	if test -f "$output_objdir/${outputname}S.${objext}"; then
+	  func_show_eval '$RM "$output_objdir/${outputname}S.${objext}"'
+	fi
+
+	exit $exit_status
+      fi
+
+      if test -n "$compile_shlibpath$finalize_shlibpath"; then
+	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+      fi
+      if test -n "$finalize_shlibpath"; then
+	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+      fi
+
+      compile_var=
+      finalize_var=
+      if test -n "$runpath_var"; then
+	if test -n "$perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+	if test -n "$finalize_perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $finalize_perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+      fi
+
+      if test "$no_install" = yes; then
+	# We don't need to create a wrapper script.
+	link_command="$compile_var$compile_command$compile_rpath"
+	# Replace the output file specification.
+	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	# Delete the old output file.
+	$opt_dry_run || $RM $output
+	# Link the executable and exit
+	func_show_eval "$link_command" 'exit $?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      if test "$hardcode_action" = relink; then
+	# Fast installation is not supported
+	link_command="$compile_var$compile_command$compile_rpath"
+	relink_command="$finalize_var$finalize_command$finalize_rpath"
+
+	func_warning "this platform does not like uninstalled shared libraries"
+	func_warning "\`$output' will be relinked during installation"
+      else
+	if test "$fast_install" != no; then
+	  link_command="$finalize_var$compile_command$finalize_rpath"
+	  if test "$fast_install" = yes; then
+	    relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+	  else
+	    # fast_install is set to needless
+	    relink_command=
+	  fi
+	else
+	  link_command="$compile_var$compile_command$compile_rpath"
+	  relink_command="$finalize_var$finalize_command$finalize_rpath"
+	fi
+      fi
+
+      # Replace the output file specification.
+      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+      # Delete the old output files.
+      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+      func_show_eval "$link_command" 'exit $?'
+
+      if test -n "$postlink_cmds"; then
+	func_to_tool_file "$output_objdir/$outputname"
+	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	func_execute_cmds "$postlink_cmds" 'exit $?'
+      fi
+
+      # Now create the wrapper script.
+      func_verbose "creating $output"
+
+      # Quote the relink command for shipping.
+      if test -n "$relink_command"; then
+	# Preserve any variables that may affect compiler behavior
+	for var in $variables_saved_for_relink; do
+	  if eval test -z \"\${$var+set}\"; then
+	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	  elif eval var_value=\$$var; test -z "$var_value"; then
+	    relink_command="$var=; export $var; $relink_command"
+	  else
+	    func_quote_for_eval "$var_value"
+	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	  fi
+	done
+	relink_command="(cd `pwd`; $relink_command)"
+	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      fi
+
+      # Only actually do things if not in dry run mode.
+      $opt_dry_run || {
+	# win32 will think the script is a binary if it has
+	# a .exe suffix, so we strip it off here.
+	case $output in
+	  *.exe) func_stripname '' '.exe' "$output"
+	         output=$func_stripname_result ;;
+	esac
+	# test for cygwin because mv fails w/o .exe extensions
+	case $host in
+	  *cygwin*)
+	    exeext=.exe
+	    func_stripname '' '.exe' "$outputname"
+	    outputname=$func_stripname_result ;;
+	  *) exeext= ;;
+	esac
+	case $host in
+	  *cygwin* | *mingw* )
+	    func_dirname_and_basename "$output" "" "."
+	    output_name=$func_basename_result
+	    output_path=$func_dirname_result
+	    cwrappersource="$output_path/$objdir/lt-$output_name.c"
+	    cwrapper="$output_path/$output_name.exe"
+	    $RM $cwrappersource $cwrapper
+	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_cwrapperexe_src > $cwrappersource
+
+	    # The wrapper executable is built using the $host compiler,
+	    # because it contains $host paths and files. If cross-
+	    # compiling, it, like the target executable, must be
+	    # executed on the $host or under an emulation environment.
+	    $opt_dry_run || {
+	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
+	      $STRIP $cwrapper
+	    }
+
+	    # Now, create the wrapper script for func_source use:
+	    func_ltwrapper_scriptname $cwrapper
+	    $RM $func_ltwrapper_scriptname_result
+	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
+	    $opt_dry_run || {
+	      # note: this script will not be executed, so do not chmod.
+	      if test "x$build" = "x$host" ; then
+		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
+	      else
+		func_emit_wrapper no > $func_ltwrapper_scriptname_result
+	      fi
+	    }
+	  ;;
+	  * )
+	    $RM $output
+	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_wrapper no > $output
+	    chmod +x $output
+	  ;;
+	esac
+      }
+      exit $EXIT_SUCCESS
+      ;;
+    esac
+
+    # See if we need to build an old-fashioned archive.
+    for oldlib in $oldlibs; do
+
+      if test "$build_libtool_libs" = convenience; then
+	oldobjs="$libobjs_save $symfileobj"
+	addlibs="$convenience"
+	build_libtool_libs=no
+      else
+	if test "$build_libtool_libs" = module; then
+	  oldobjs="$libobjs_save"
+	  build_libtool_libs=no
+	else
+	  oldobjs="$old_deplibs $non_pic_objects"
+	  if test "$preload" = yes && test -f "$symfileobj"; then
+	    func_append oldobjs " $symfileobj"
+	  fi
+	fi
+	addlibs="$old_convenience"
+      fi
+
+      if test -n "$addlibs"; then
+	gentop="$output_objdir/${outputname}x"
+	func_append generated " $gentop"
+
+	func_extract_archives $gentop $addlibs
+	func_append oldobjs " $func_extract_archives_result"
+      fi
+
+      # Do each command in the archive commands.
+      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
+	cmds=$old_archive_from_new_cmds
+      else
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop="$output_objdir/${outputname}x"
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append oldobjs " $func_extract_archives_result"
+	fi
+
+	# POSIX demands no paths to be encoded in archives.  We have
+	# to avoid creating archives with duplicate basenames if we
+	# might have to extract them afterwards, e.g., when creating a
+	# static archive out of a convenience library, or when linking
+	# the entirety of a libtool archive into another (currently
+	# not supported by libtool).
+	if (for obj in $oldobjs
+	    do
+	      func_basename "$obj"
+	      $ECHO "$func_basename_result"
+	    done | sort | sort -uc >/dev/null 2>&1); then
+	  :
+	else
+	  echo "copying selected object files to avoid basename conflicts..."
+	  gentop="$output_objdir/${outputname}x"
+	  func_append generated " $gentop"
+	  func_mkdir_p "$gentop"
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  counter=1
+	  for obj in $save_oldobjs
+	  do
+	    func_basename "$obj"
+	    objbase="$func_basename_result"
+	    case " $oldobjs " in
+	    " ") oldobjs=$obj ;;
+	    *[\ /]"$objbase "*)
+	      while :; do
+		# Make sure we don't pick an alternate name that also
+		# overlaps.
+		newobj=lt$counter-$objbase
+		func_arith $counter + 1
+		counter=$func_arith_result
+		case " $oldobjs " in
+		*[\ /]"$newobj "*) ;;
+		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
+		esac
+	      done
+	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
+	      func_append oldobjs " $gentop/$newobj"
+	      ;;
+	    *) func_append oldobjs " $obj" ;;
+	    esac
+	  done
+	fi
+	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+	tool_oldlib=$func_to_tool_file_result
+	eval cmds=\"$old_archive_cmds\"
+
+	func_len " $cmds"
+	len=$func_len_result
+	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  cmds=$old_archive_cmds
+	elif test -n "$archiver_list_spec"; then
+	  func_verbose "using command file archive linking..."
+	  for obj in $oldobjs
+	  do
+	    func_to_tool_file "$obj"
+	    $ECHO "$func_to_tool_file_result"
+	  done > $output_objdir/$libname.libcmd
+	  func_to_tool_file "$output_objdir/$libname.libcmd"
+	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
+	  cmds=$old_archive_cmds
+	else
+	  # the command line is too long to link in one step, link in parts
+	  func_verbose "using piecewise archive linking..."
+	  save_RANLIB=$RANLIB
+	  RANLIB=:
+	  objlist=
+	  concat_cmds=
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  # Is there a better way of finding the last object in the list?
+	  for obj in $save_oldobjs
+	  do
+	    last_oldobj=$obj
+	  done
+	  eval test_cmds=\"$old_archive_cmds\"
+	  func_len " $test_cmds"
+	  len0=$func_len_result
+	  len=$len0
+	  for obj in $save_oldobjs
+	  do
+	    func_len " $obj"
+	    func_arith $len + $func_len_result
+	    len=$func_arith_result
+	    func_append objlist " $obj"
+	    if test "$len" -lt "$max_cmd_len"; then
+	      :
+	    else
+	      # the above command should be used before it gets too long
+	      oldobjs=$objlist
+	      if test "$obj" = "$last_oldobj" ; then
+		RANLIB=$save_RANLIB
+	      fi
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\${concat_cmds}$old_archive_cmds\"
+	      objlist=
+	      len=$len0
+	    fi
+	  done
+	  RANLIB=$save_RANLIB
+	  oldobjs=$objlist
+	  if test "X$oldobjs" = "X" ; then
+	    eval cmds=\"\$concat_cmds\"
+	  else
+	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
+	  fi
+	fi
+      fi
+      func_execute_cmds "$cmds" 'exit $?'
+    done
+
+    test -n "$generated" && \
+      func_show_eval "${RM}r$generated"
+
+    # Now create the libtool archive.
+    case $output in
+    *.la)
+      old_library=
+      test "$build_old_libs" = yes && old_library="$libname.$libext"
+      func_verbose "creating $output"
+
+      # Preserve any variables that may affect compiler behavior
+      for var in $variables_saved_for_relink; do
+	if eval test -z \"\${$var+set}\"; then
+	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	elif eval var_value=\$$var; test -z "$var_value"; then
+	  relink_command="$var=; export $var; $relink_command"
+	else
+	  func_quote_for_eval "$var_value"
+	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	fi
+      done
+      # Quote the link command for shipping.
+      relink_command="(cd `pwd`; $SHELL $progpath $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      if test "$hardcode_automatic" = yes ; then
+	relink_command=
+      fi
+
+      # Only create the output if not a dry run.
+      $opt_dry_run || {
+	for installed in no yes; do
+	  if test "$installed" = yes; then
+	    if test -z "$install_libdir"; then
+	      break
+	    fi
+	    output="$output_objdir/$outputname"i
+	    # Replace all uninstalled libtool libraries with the installed ones
+	    newdependency_libs=
+	    for deplib in $dependency_libs; do
+	      case $deplib in
+	      *.la)
+		func_basename "$deplib"
+		name="$func_basename_result"
+		func_resolve_sysroot "$deplib"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
+		test -z "$libdir" && \
+		  func_fatal_error "\`$deplib' is not a valid libtool archive"
+		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      -L*)
+		func_stripname -L '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -L$func_replace_sysroot_result"
+		;;
+	      -R*)
+		func_stripname -R '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -R$func_replace_sysroot_result"
+		;;
+	      *) func_append newdependency_libs " $deplib" ;;
+	      esac
+	    done
+	    dependency_libs="$newdependency_libs"
+	    newdlfiles=
+
+	    for lib in $dlfiles; do
+	      case $lib in
+	      *.la)
+	        func_basename "$lib"
+		name="$func_basename_result"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "\`$lib' is not a valid libtool archive"
+		func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      *) func_append newdlfiles " $lib" ;;
+	      esac
+	    done
+	    dlfiles="$newdlfiles"
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+	      *.la)
+		# Only pass preopened files to the pseudo-archive (for
+		# eventual linking with the app. that links it) if we
+		# didn't already link the preopened objects directly into
+		# the library:
+		func_basename "$lib"
+		name="$func_basename_result"
+		eval libdir=`${SED} -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "\`$lib' is not a valid libtool archive"
+		func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      esac
+	    done
+	    dlprefiles="$newdlprefiles"
+	  else
+	    newdlfiles=
+	    for lib in $dlfiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlfiles " $abs"
+	    done
+	    dlfiles="$newdlfiles"
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs="$lib" ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlprefiles " $abs"
+	    done
+	    dlprefiles="$newdlprefiles"
+	  fi
+	  $RM $output
+	  # place dlname in correct position for cygwin
+	  # In fact, it would be nice if we could use this code for all target
+	  # systems that can't hard-code library paths into their executables
+	  # and that have no shared library path variable independent of PATH,
+	  # but it turns out we can't easily determine that from inspecting
+	  # libtool variables, so we have to hard-code the OSs to which it
+	  # applies here; at the moment, that means platforms that use the PE
+	  # object format with DLL files.  See the long comment at the top of
+	  # tests/bindir.at for full details.
+	  tdlname=$dlname
+	  case $host,$output,$installed,$module,$dlname in
+	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+	      # If a -bindir argument was supplied, place the dll there.
+	      if test "x$bindir" != x ;
+	      then
+		func_relative_path "$install_libdir" "$bindir"
+		tdlname=$func_relative_path_result$dlname
+	      else
+		# Otherwise fall back on heuristic.
+		tdlname=../bin/$dlname
+	      fi
+	      ;;
+	  esac
+	  $ECHO > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Linker flags that can not go in dependency_libs.
+inherited_linker_flags='$new_inherited_linker_flags'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Names of additional weak libraries provided by this library
+weak_library_names='$weak_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Should we warn about portability when linking against -modules?
+shouldnotlink=$module
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+	  if test "$installed" = no && test "$need_relink" = yes; then
+	    $ECHO >> $output "\
+relink_command=\"$relink_command\""
+	  fi
+	done
+      }
+
+      # Do a symbolic link so that the libtool archive can be found in
+      # LD_LIBRARY_PATH before the program is installed.
+      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
+      ;;
+    esac
+    exit $EXIT_SUCCESS
+}
+
+{ test "$opt_mode" = link || test "$opt_mode" = relink; } &&
+    func_mode_link ${1+"$@"}
+
+
+# func_mode_uninstall arg...
+func_mode_uninstall ()
+{
+    $opt_debug
+    RM="$nonopt"
+    files=
+    rmforce=
+    exit_status=0
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic="$magic"
+
+    for arg
+    do
+      case $arg in
+      -f) func_append RM " $arg"; rmforce=yes ;;
+      -*) func_append RM " $arg" ;;
+      *) func_append files " $arg" ;;
+      esac
+    done
+
+    test -z "$RM" && \
+      func_fatal_help "you must specify an RM program"
+
+    rmdirs=
+
+    for file in $files; do
+      func_dirname "$file" "" "."
+      dir="$func_dirname_result"
+      if test "X$dir" = X.; then
+	odir="$objdir"
+      else
+	odir="$dir/$objdir"
+      fi
+      func_basename "$file"
+      name="$func_basename_result"
+      test "$opt_mode" = uninstall && odir="$dir"
+
+      # Remember odir for removal later, being careful to avoid duplicates
+      if test "$opt_mode" = clean; then
+	case " $rmdirs " in
+	  *" $odir "*) ;;
+	  *) func_append rmdirs " $odir" ;;
+	esac
+      fi
+
+      # Don't error if the file doesn't exist and rm -f was used.
+      if { test -L "$file"; } >/dev/null 2>&1 ||
+	 { test -h "$file"; } >/dev/null 2>&1 ||
+	 test -f "$file"; then
+	:
+      elif test -d "$file"; then
+	exit_status=1
+	continue
+      elif test "$rmforce" = yes; then
+	continue
+      fi
+
+      rmfiles="$file"
+
+      case $name in
+      *.la)
+	# Possibly a libtool archive, so verify it.
+	if func_lalib_p "$file"; then
+	  func_source $dir/$name
+
+	  # Delete the libtool libraries and symlinks.
+	  for n in $library_names; do
+	    func_append rmfiles " $odir/$n"
+	  done
+	  test -n "$old_library" && func_append rmfiles " $odir/$old_library"
+
+	  case "$opt_mode" in
+	  clean)
+	    case " $library_names " in
+	    *" $dlname "*) ;;
+	    *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
+	    esac
+	    test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
+	    ;;
+	  uninstall)
+	    if test -n "$library_names"; then
+	      # Do each command in the postuninstall commands.
+	      func_execute_cmds "$postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
+	    fi
+
+	    if test -n "$old_library"; then
+	      # Do each command in the old_postuninstall commands.
+	      func_execute_cmds "$old_postuninstall_cmds" 'test "$rmforce" = yes || exit_status=1'
+	    fi
+	    # FIXME: should reinstall the best remaining shared library.
+	    ;;
+	  esac
+	fi
+	;;
+
+      *.lo)
+	# Possibly a libtool object, so verify it.
+	if func_lalib_p "$file"; then
+
+	  # Read the .lo file
+	  func_source $dir/$name
+
+	  # Add PIC object to the list of files to remove.
+	  if test -n "$pic_object" &&
+	     test "$pic_object" != none; then
+	    func_append rmfiles " $dir/$pic_object"
+	  fi
+
+	  # Add non-PIC object to the list of files to remove.
+	  if test -n "$non_pic_object" &&
+	     test "$non_pic_object" != none; then
+	    func_append rmfiles " $dir/$non_pic_object"
+	  fi
+	fi
+	;;
+
+      *)
+	if test "$opt_mode" = clean ; then
+	  noexename=$name
+	  case $file in
+	  *.exe)
+	    func_stripname '' '.exe' "$file"
+	    file=$func_stripname_result
+	    func_stripname '' '.exe' "$name"
+	    noexename=$func_stripname_result
+	    # $file with .exe has already been added to rmfiles,
+	    # add $file without .exe
+	    func_append rmfiles " $file"
+	    ;;
+	  esac
+	  # Do a test to see if this is a libtool program.
+	  if func_ltwrapper_p "$file"; then
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      relink_command=
+	      func_source $func_ltwrapper_scriptname_result
+	      func_append rmfiles " $func_ltwrapper_scriptname_result"
+	    else
+	      relink_command=
+	      func_source $dir/$noexename
+	    fi
+
+	    # note $name still contains .exe if it was in $file originally
+	    # as does the version of $file that was added into $rmfiles
+	    func_append rmfiles " $odir/$name $odir/${name}S.${objext}"
+	    if test "$fast_install" = yes && test -n "$relink_command"; then
+	      func_append rmfiles " $odir/lt-$name"
+	    fi
+	    if test "X$noexename" != "X$name" ; then
+	      func_append rmfiles " $odir/lt-${noexename}.c"
+	    fi
+	  fi
+	fi
+	;;
+      esac
+      func_show_eval "$RM $rmfiles" 'exit_status=1'
+    done
+
+    # Try to remove the ${objdir}s in the directories where we deleted files
+    for dir in $rmdirs; do
+      if test -d "$dir"; then
+	func_show_eval "rmdir $dir >/dev/null 2>&1"
+      fi
+    done
+
+    exit $exit_status
+}
+
+{ test "$opt_mode" = uninstall || test "$opt_mode" = clean; } &&
+    func_mode_uninstall ${1+"$@"}
+
+test -z "$opt_mode" && {
+  help="$generic_help"
+  func_fatal_help "you must specify a MODE"
+}
+
+test -z "$exec_cmd" && \
+  func_fatal_help "invalid operation mode \`$opt_mode'"
+
+if test -n "$exec_cmd"; then
+  eval exec "$exec_cmd"
+  exit $EXIT_FAILURE
+fi
+
+exit $exit_status
+
+
+# The TAGs below are defined such that we never get into a situation
+# in which we disable both kinds of libraries.  Given conflicting
+# choices, we go for a static library, that is the most portable,
+# since we can't tell whether shared libraries were disabled because
+# the user asked for that or because the platform doesn't support
+# them.  This is particularly important on AIX, because we don't
+# support having both static and shared libraries enabled at the same
+# time on that platform, so we default to a shared-only configuration.
+# If a disable-shared tag is given, we'll fallback to a static-only
+# configuration.  But we'll never go from static-only to shared-only.
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
+build_libtool_libs=no
+build_old_libs=yes
+# ### END LIBTOOL TAG CONFIG: disable-shared
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-static
+build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
+# ### END LIBTOOL TAG CONFIG: disable-static
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
+# vi:sw=2
+
diff --git a/build/aux/missing b/build/aux/missing
new file mode 100755
index 00000000..cdea5149
--- /dev/null
+++ b/build/aux/missing
@@ -0,0 +1,215 @@
+#! /bin/sh
+# Common wrapper for a few potentially missing GNU programs.
+
+scriptversion=2012-06-26.16; # UTC
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try '$0 --help' for more information"
+  exit 1
+fi
+
+case $1 in
+
+  --is-lightweight)
+    # Used by our autoconf macros to check whether the available missing
+    # script is modern enough.
+    exit 0
+    ;;
+
+  --run)
+    # Back-compat with the calling convention used by older automake.
+    shift
+    ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+
+Supported PROGRAM values:
+  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
+  bison     yacc      flex         lex       help2man
+
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# Run the given program, remember its exit status.
+"$@"; st=$?
+
+# If it succeeded, we are done.
+test $st -eq 0 && exit 0
+
+# Also exit now if we it failed (or wasn't found), and '--version' was
+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch.  This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+  msg="probably too old"
+elif test $st -eq 127; then
+  # Program was missing.
+  msg="missing on your system"
+else
+  # Program was found and executed, but failed.  Give up.
+  exit $st
+fi
+
+perl_URL=http://www.perl.org/
+flex_URL=http://flex.sourceforge.net/
+gnu_software_URL=http://www.gnu.org/software
+
+program_details ()
+{
+  case $1 in
+    aclocal|automake)
+      echo "The '$1' program is part of the GNU Automake package:"
+      echo "<$gnu_software_URL/automake>"
+      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/autoconf>"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+    autoconf|autom4te|autoheader)
+      echo "The '$1' program is part of the GNU Autoconf package:"
+      echo "<$gnu_software_URL/autoconf/>"
+      echo "It also requires GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+  esac
+}
+
+give_advice ()
+{
+  # Normalize program name to check for.
+  normalized_program=`echo "$1" | sed '
+    s/^gnu-//; t
+    s/^gnu//; t
+    s/^g//; t'`
+
+  printf '%s\n' "'$1' is $msg."
+
+  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+  case $normalized_program in
+    autoconf*)
+      echo "You should only need it if you modified 'configure.ac',"
+      echo "or m4 files included by it."
+      program_details 'autoconf'
+      ;;
+    autoheader*)
+      echo "You should only need it if you modified 'acconfig.h' or"
+      echo "$configure_deps."
+      program_details 'autoheader'
+      ;;
+    automake*)
+      echo "You should only need it if you modified 'Makefile.am' or"
+      echo "$configure_deps."
+      program_details 'automake'
+      ;;
+    aclocal*)
+      echo "You should only need it if you modified 'acinclude.m4' or"
+      echo "$configure_deps."
+      program_details 'aclocal'
+      ;;
+   autom4te*)
+      echo "You might have modified some maintainer files that require"
+      echo "the 'automa4te' program to be rebuilt."
+      program_details 'autom4te'
+      ;;
+    bison*|yacc*)
+      echo "You should only need it if you modified a '.y' file."
+      echo "You may want to install the GNU Bison package:"
+      echo "<$gnu_software_URL/bison/>"
+      ;;
+    lex*|flex*)
+      echo "You should only need it if you modified a '.l' file."
+      echo "You may want to install the Fast Lexical Analyzer package:"
+      echo "<$flex_URL>"
+      ;;
+    help2man*)
+      echo "You should only need it if you modified a dependency" \
+           "of a man page."
+      echo "You may want to install the GNU Help2man package:"
+      echo "<$gnu_software_URL/help2man/>"
+    ;;
+    makeinfo*)
+      echo "You should only need it if you modified a '.texi' file, or"
+      echo "any other file indirectly affecting the aspect of the manual."
+      echo "You might want to install the Texinfo package:"
+      echo "<$gnu_software_URL/texinfo/>"
+      echo "The spurious makeinfo call might also be the consequence of"
+      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+      echo "want to install GNU make:"
+      echo "<$gnu_software_URL/make/>"
+      ;;
+    *)
+      echo "You might have modified some files without having the proper"
+      echo "tools for further handling them.  Check the 'README' file, it"
+      echo "often tells you about the needed prerequisites for installing"
+      echo "this package.  You may also peek at any GNU archive site, in"
+      echo "case some other package contains this missing '$1' program."
+      ;;
+  esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+                       -e '2,$s/^/         /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/build/aux/test-driver b/build/aux/test-driver
new file mode 100755
index 00000000..32bf39e8
--- /dev/null
+++ b/build/aux/test-driver
@@ -0,0 +1,127 @@
+#! /bin/sh
+# test-driver - basic testsuite driver script.
+
+scriptversion=2012-06-27.10; # UTC
+
+# Copyright (C) 2011-2013 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+# Make unconditional expansion of undefined variables an error.  This
+# helps a lot in preventing typo-related bugs.
+set -u
+
+usage_error ()
+{
+  echo "$0: $*" >&2
+  print_usage >&2
+  exit 2
+}
+
+print_usage ()
+{
+  cat <<END
+Usage:
+  test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
+              [--expect-failure={yes|no}] [--color-tests={yes|no}]
+              [--enable-hard-errors={yes|no}] [--] TEST-SCRIPT
+The '--test-name', '--log-file' and '--trs-file' options are mandatory.
+END
+}
+
+# TODO: better error handling in option parsing (in particular, ensure
+# TODO: $log_file, $trs_file and $test_name are defined).
+test_name= # Used for reporting.
+log_file=  # Where to save the output of the test script.
+trs_file=  # Where to save the metadata of the test run.
+expect_failure=no
+color_tests=no
+enable_hard_errors=yes
+while test $# -gt 0; do
+  case $1 in
+  --help) print_usage; exit $?;;
+  --version) echo "test-driver $scriptversion"; exit $?;;
+  --test-name) test_name=$2; shift;;
+  --log-file) log_file=$2; shift;;
+  --trs-file) trs_file=$2; shift;;
+  --color-tests) color_tests=$2; shift;;
+  --expect-failure) expect_failure=$2; shift;;
+  --enable-hard-errors) enable_hard_errors=$2; shift;;
+  --) shift; break;;
+  -*) usage_error "invalid option: '$1'";;
+  esac
+  shift
+done
+
+if test $color_tests = yes; then
+  # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
+  red='' # Red.
+  grn='' # Green.
+  lgn='' # Light green.
+  blu='' # Blue.
+  mgn='' # Magenta.
+  std=''     # No color.
+else
+  red= grn= lgn= blu= mgn= std=
+fi
+
+do_exit='rm -f $log_file $trs_file; (exit $st); exit $st'
+trap "st=129; $do_exit" 1
+trap "st=130; $do_exit" 2
+trap "st=141; $do_exit" 13
+trap "st=143; $do_exit" 15
+
+# Test script is run here.
+"$@" >$log_file 2>&1
+estatus=$?
+if test $enable_hard_errors = no && test $estatus -eq 99; then
+  estatus=1
+fi
+
+case $estatus:$expect_failure in
+  0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
+  0:*)   col=$grn res=PASS  recheck=no  gcopy=no;;
+  77:*)  col=$blu res=SKIP  recheck=no  gcopy=yes;;
+  99:*)  col=$mgn res=ERROR recheck=yes gcopy=yes;;
+  *:yes) col=$lgn res=XFAIL recheck=no  gcopy=yes;;
+  *:*)   col=$red res=FAIL  recheck=yes gcopy=yes;;
+esac
+
+# Report outcome to console.
+echo "${col}${res}${std}: $test_name"
+
+# Register the test result, and other relevant metadata.
+echo ":test-result: $res" > $trs_file
+echo ":global-test-result: $res" >> $trs_file
+echo ":recheck: $recheck" >> $trs_file
+echo ":copy-in-global-log: $gcopy" >> $trs_file
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/build/aux/ylwrap b/build/aux/ylwrap
new file mode 100755
index 00000000..1c4d7761
--- /dev/null
+++ b/build/aux/ylwrap
@@ -0,0 +1,249 @@
+#! /bin/sh
+# ylwrap - wrapper for lex/yacc invocations.
+
+scriptversion=2012-12-21.17; # UTC
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+#
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+get_dirname ()
+{
+  case $1 in
+    */*|*\\*) printf '%s\n' "$1" | sed -e 's|\([\\/]\)[^\\/]*$|\1|';;
+    # Otherwise,  we want the empty string (not ".").
+  esac
+}
+
+# guard FILE
+# ----------
+# The CPP macro used to guard inclusion of FILE.
+guard()
+{
+  printf '%s\n' "$1"                                                    \
+    | sed                                                               \
+        -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'   \
+        -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'                        \
+        -e 's/__*/_/g'
+}
+
+# quote_for_sed [STRING]
+# ----------------------
+# Return STRING (or stdin) quoted to be used as a sed pattern.
+quote_for_sed ()
+{
+  case $# in
+    0) cat;;
+    1) printf '%s\n' "$1";;
+  esac \
+    | sed -e 's|[][\\.*]|\\&|g'
+}
+
+case "$1" in
+  '')
+    echo "$0: No files given.  Try '$0 --help' for more information." 1>&2
+    exit 1
+    ;;
+  --basedir)
+    basedir=$2
+    shift 2
+    ;;
+  -h|--h*)
+    cat <<\EOF
+Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
+
+Wrapper for lex/yacc invocations, renaming files as desired.
+
+  INPUT is the input file
+  OUTPUT is one file PROG generates
+  DESIRED is the file we actually want instead of OUTPUT
+  PROGRAM is program to run
+  ARGS are passed to PROG
+
+Any number of OUTPUT,DESIRED pairs may be used.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v|--v*)
+    echo "ylwrap $scriptversion"
+    exit $?
+    ;;
+esac
+
+
+# The input.
+input="$1"
+shift
+# We'll later need for a correct munging of "#line" directives.
+input_sub_rx=`get_dirname "$input" | quote_for_sed`
+case "$input" in
+  [\\/]* | ?:[\\/]*)
+    # Absolute path; do nothing.
+    ;;
+  *)
+    # Relative path.  Make it absolute.
+    input="`pwd`/$input"
+    ;;
+esac
+input_rx=`get_dirname "$input" | quote_for_sed`
+
+# Since DOS filename conventions don't allow two dots,
+# the DOS version of Bison writes out y_tab.c instead of y.tab.c
+# and y_tab.h instead of y.tab.h. Test to see if this is the case.
+y_tab_nodot=false
+if test -f y_tab.c || test -f y_tab.h; then
+  y_tab_nodot=true
+fi
+
+# The parser itself, the first file, is the destination of the .y.c
+# rule in the Makefile.
+parser=$1
+
+# A sed program to s/FROM/TO/g for all the FROM/TO so that, for
+# instance, we rename #include "y.tab.h" into #include "parse.h"
+# during the conversion from y.tab.c to parse.c.
+sed_fix_filenames=
+
+# Also rename header guards, as Bison 2.7 for instance uses its header
+# guard in its implementation file.
+sed_fix_header_guards=
+
+while test "$#" -ne 0; do
+  if test "$1" = "--"; then
+    shift
+    break
+  fi
+  from=$1
+  # Handle y_tab.c and y_tab.h output by DOS
+  if $y_tab_nodot; then
+    case $from in
+      "y.tab.c") from=y_tab.c;;
+      "y.tab.h") from=y_tab.h;;
+    esac
+  fi
+  shift
+  to=$1
+  shift
+  sed_fix_filenames="${sed_fix_filenames}s|"`quote_for_sed "$from"`"|$to|g;"
+  sed_fix_header_guards="${sed_fix_header_guards}s|"`guard "$from"`"|"`guard "$to"`"|g;"
+done
+
+# The program to run.
+prog="$1"
+shift
+# Make any relative path in $prog absolute.
+case "$prog" in
+  [\\/]* | ?:[\\/]*) ;;
+  *[\\/]*) prog="`pwd`/$prog" ;;
+esac
+
+# FIXME: add hostname here for parallel makes that run commands on
+# other machines.  But that might take us over the 14-char limit.
+dirname=ylwrap$$
+do_exit="cd '`pwd`' && rm -rf $dirname > /dev/null 2>&1;"' (exit $ret); exit $ret'
+trap "ret=129; $do_exit" 1
+trap "ret=130; $do_exit" 2
+trap "ret=141; $do_exit" 13
+trap "ret=143; $do_exit" 15
+mkdir $dirname || exit 1
+
+cd $dirname
+
+case $# in
+  0) "$prog" "$input" ;;
+  *) "$prog" "$@" "$input" ;;
+esac
+ret=$?
+
+if test $ret -eq 0; then
+  for from in *
+  do
+    to=`printf '%s\n' "$from" | sed "$sed_fix_filenames"`
+    if test -f "$from"; then
+      # If $2 is an absolute path name, then just use that,
+      # otherwise prepend '../'.
+      case $to in
+        [\\/]* | ?:[\\/]*) target=$to;;
+        *) target="../$to";;
+      esac
+
+      # Do not overwrite unchanged header files to avoid useless
+      # recompilations.  Always update the parser itself: it is the
+      # destination of the .y.c rule in the Makefile.  Divert the
+      # output of all other files to a temporary file so we can
+      # compare them to existing versions.
+      if test $from != $parser; then
+        realtarget="$target"
+        target=tmp-`printf '%s\n' "$target" | sed 's|.*[\\/]||g'`
+      fi
+
+      # Munge "#line" or "#" directives.  Don't let the resulting
+      # debug information point at an absolute srcdir.  Use the real
+      # output file name, not yy.lex.c for instance.  Adjust the
+      # include guards too.
+      sed -e "/^#/!b"                           \
+          -e "s|$input_rx|$input_sub_rx|"       \
+          -e "$sed_fix_filenames"               \
+          -e "$sed_fix_header_guards"           \
+        "$from" >"$target" || ret=$?
+
+      # Check whether files must be updated.
+      if test "$from" != "$parser"; then
+        if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
+          echo "$to is unchanged"
+          rm -f "$target"
+        else
+          echo "updating $to"
+          mv -f "$target" "$realtarget"
+        fi
+      fi
+    else
+      # A missing file is only an error for the parser.  This is a
+      # blatant hack to let us support using "yacc -d".  If -d is not
+      # specified, don't fail when the header file is "missing".
+      if test "$from" = "$parser"; then
+        ret=1
+      fi
+    fi
+  done
+fi
+
+# Remove the directory.
+cd ..
+rm -rf $dirname
+
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/build/ax_boost_base.m4 b/build/ax_boost_base.m4
new file mode 100644
index 00000000..54a2a1be
--- /dev/null
+++ b/build/ax_boost_base.m4
@@ -0,0 +1,258 @@
+# ===========================================================================
+#       http://www.gnu.org/software/autoconf-archive/ax_boost_base.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_BOOST_BASE([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# DESCRIPTION
+#
+#   Test for the Boost C++ libraries of a particular version (or newer)
+#
+#   If no path to the installed boost library is given the macro searchs
+#   under /usr, /usr/local, /opt and /opt/local and evaluates the
+#   $BOOST_ROOT environment variable. Further documentation is available at
+#   <http://randspringer.de/boost/index.html>.
+#
+#   This macro calls:
+#
+#     AC_SUBST(BOOST_CPPFLAGS) / AC_SUBST(BOOST_LDFLAGS)
+#
+#   And sets:
+#
+#     HAVE_BOOST
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
+#   Copyright (c) 2009 Peter Adolphs
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 20
+
+AC_DEFUN([AX_BOOST_BASE],
+[
+AC_ARG_WITH([boost],
+  [AS_HELP_STRING([--with-boost@<:@=ARG@:>@],
+    [use Boost library from a standard location (ARG=yes),
+     from the specified location (ARG=<path>),
+     or disable it (ARG=no)
+     @<:@ARG=yes@:>@ ])],
+    [
+    if test "$withval" = "no"; then
+        want_boost="no"
+    elif test "$withval" = "yes"; then
+        want_boost="yes"
+        ac_boost_path=""
+    else
+        want_boost="yes"
+        ac_boost_path="$withval"
+    fi
+    ],
+    [want_boost="yes"])
+
+
+AC_ARG_WITH([boost-libdir],
+        AS_HELP_STRING([--with-boost-libdir=LIB_DIR],
+        [Force given directory for boost libraries. Note that this will override library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]),
+        [
+        if test -d "$withval"
+        then
+                ac_boost_lib_path="$withval"
+        else
+                AC_MSG_ERROR(--with-boost-libdir expected directory name)
+        fi
+        ],
+        [ac_boost_lib_path=""]
+)
+
+if test "x$want_boost" = "xyes"; then
+    boost_lib_version_req=ifelse([$1], ,1.20.0,$1)
+    boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'`
+    boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'`
+    boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
+    boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+    if test "x$boost_lib_version_req_sub_minor" = "x" ; then
+        boost_lib_version_req_sub_minor="0"
+        fi
+    WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+  $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
+    AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req)
+    succeeded=no
+
+    dnl On 64-bit systems check for system libraries in both lib64 and lib.
+    dnl The former is specified by FHS, but e.g. Debian does not adhere to
+    dnl this (as it rises problems for generic multi-arch support).
+    dnl The last entry in the list is chosen by default when no libraries
+    dnl are found, e.g. when only header-only libraries are installed!
+    libsubdirs="lib"
+    ax_arch=`uname -m`
+    if test $ax_arch = x86_64 -o $ax_arch = ppc64 -o $ax_arch = s390x -o $ax_arch = sparc64; then
+        libsubdirs="lib64 lib lib64"
+    fi
+
+    dnl first we check the system location for boost libraries
+    dnl this location ist chosen if boost libraries are installed with the --layout=system option
+    dnl or if you install boost with RPM
+    if test "$ac_boost_path" != ""; then
+        BOOST_CPPFLAGS="-I$ac_boost_path/include"
+        for ac_boost_path_tmp in $libsubdirs; do
+                if test -d "$ac_boost_path"/"$ac_boost_path_tmp" ; then
+                        BOOST_LDFLAGS="-L$ac_boost_path/$ac_boost_path_tmp"
+                        break
+                fi
+        done
+    elif test "$cross_compiling" != yes; then
+        for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
+            if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
+                for libsubdir in $libsubdirs ; do
+                    if ls "$ac_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+                done
+                BOOST_LDFLAGS="-L$ac_boost_path_tmp/$libsubdir"
+                BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
+                break;
+            fi
+        done
+    fi
+
+    dnl overwrite ld flags if we have required special directory with
+    dnl --with-boost-libdir parameter
+    if test "$ac_boost_lib_path" != ""; then
+       BOOST_LDFLAGS="-L$ac_boost_lib_path"
+    fi
+
+    CPPFLAGS_SAVED="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
+    export CPPFLAGS
+
+    LDFLAGS_SAVED="$LDFLAGS"
+    LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
+    export LDFLAGS
+
+    AC_REQUIRE([AC_PROG_CXX])
+    AC_LANG_PUSH(C++)
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+    @%:@include <boost/version.hpp>
+    ]], [[
+    #if BOOST_VERSION >= $WANT_BOOST_VERSION
+    // Everything is okay
+    #else
+    #  error Boost version is too old
+    #endif
+    ]])],[
+        AC_MSG_RESULT(yes)
+    succeeded=yes
+    found_system=yes
+        ],[
+        ])
+    AC_LANG_POP([C++])
+
+
+
+    dnl if we found no boost with system layout we search for boost libraries
+    dnl built and installed without the --layout=system option or for a staged(not installed) version
+    if test "x$succeeded" != "xyes"; then
+        _version=0
+        if test "$ac_boost_path" != ""; then
+            if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
+                for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
+                    _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
+                    V_CHECK=`expr $_version_tmp \> $_version`
+                    if test "$V_CHECK" = "1" ; then
+                        _version=$_version_tmp
+                    fi
+                    VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
+                    BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
+                done
+            fi
+        else
+            if test "$cross_compiling" != yes; then
+                for ac_boost_path in /usr /usr/local /opt /opt/local ; do
+                    if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
+                        for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
+                            _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
+                            V_CHECK=`expr $_version_tmp \> $_version`
+                            if test "$V_CHECK" = "1" ; then
+                                _version=$_version_tmp
+                                best_path=$ac_boost_path
+                            fi
+                        done
+                    fi
+                done
+
+                VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
+                BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
+                if test "$ac_boost_lib_path" = ""; then
+                    for libsubdir in $libsubdirs ; do
+                        if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+                    done
+                    BOOST_LDFLAGS="-L$best_path/$libsubdir"
+                fi
+            fi
+
+            if test "x$BOOST_ROOT" != "x"; then
+                for libsubdir in $libsubdirs ; do
+                    if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+                done
+                if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/$libsubdir" && test -r "$BOOST_ROOT/stage/$libsubdir"; then
+                    version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
+                    stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
+                        stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'`
+                    V_CHECK=`expr $stage_version_shorten \>\= $_version`
+                    if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
+                        AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT)
+                        BOOST_CPPFLAGS="-I$BOOST_ROOT"
+                        BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir"
+                    fi
+                fi
+            fi
+        fi
+
+        CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
+        export CPPFLAGS
+        LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
+        export LDFLAGS
+
+        AC_LANG_PUSH(C++)
+            AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+        @%:@include <boost/version.hpp>
+        ]], [[
+        #if BOOST_VERSION >= $WANT_BOOST_VERSION
+        // Everything is okay
+        #else
+        #  error Boost version is too old
+        #endif
+        ]])],[
+            AC_MSG_RESULT(yes)
+        succeeded=yes
+        found_system=yes
+            ],[
+            ])
+        AC_LANG_POP([C++])
+    fi
+
+    if test "$succeeded" != "yes" ; then
+        if test "$_version" = "0" ; then
+            AC_MSG_NOTICE([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option.  If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation.]])
+        else
+            AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).])
+        fi
+        # execute ACTION-IF-NOT-FOUND (if present):
+        ifelse([$3], , :, [$3])
+    else
+        AC_SUBST(BOOST_CPPFLAGS)
+        AC_SUBST(BOOST_LDFLAGS)
+        AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available])
+        # execute ACTION-IF-FOUND (if present):
+        ifelse([$2], , :, [$2])
+    fi
+
+    CPPFLAGS="$CPPFLAGS_SAVED"
+    LDFLAGS="$LDFLAGS_SAVED"
+fi
+
+])
diff --git a/build/ax_check_openssl.m4 b/build/ax_check_openssl.m4
new file mode 100644
index 00000000..b490c91f
--- /dev/null
+++ b/build/ax_check_openssl.m4
@@ -0,0 +1,136 @@
+# ===========================================================================
+#     http://www.gnu.org/software/autoconf-archive/ax_check_openssl.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_OPENSSL([action-if-found[, action-if-not-found]])
+#
+# DESCRIPTION
+#
+#   Look for OpenSSL in a number of default spots, or in a user-selected
+#   spot (via --with-openssl).  Sets
+#
+#     OPENSSL_INCLUDES to the include directives required
+#     OPENSSL_LIBS to the -l directives required
+#     OPENSSL_LDFLAGS to the -L or -R flags required
+#
+#   and calls ACTION-IF-FOUND or ACTION-IF-NOT-FOUND appropriately
+#
+#   This macro sets OPENSSL_INCLUDES such that source files should use the
+#   openssl/ directory in include directives:
+#
+#     #include <openssl/hmac.h>
+#
+# LICENSE
+#
+#   Copyright (c) 2009,2010 Zmanda Inc. <http://www.zmanda.com/>
+#   Copyright (c) 2009,2010 Dustin J. Mitchell <dustin@zmanda.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 8
+
+AU_ALIAS([CHECK_SSL], [AX_CHECK_OPENSSL])
+AC_DEFUN([AX_CHECK_OPENSSL], [
+    found=false
+    overriden_with_ssl=false
+    AC_ARG_WITH([openssl],
+        [AS_HELP_STRING([--with-openssl=DIR],
+            [root of the OpenSSL directory])],
+        [
+            case "$withval" in
+            "" | y | ye | yes | n | no)
+            AC_MSG_ERROR([Invalid --with-openssl value])
+              ;;
+            *) ssldirs="$withval"
+               overriden_with_ssl=true
+              ;;
+            esac
+        ], [
+            # if pkg-config is installed and openssl has installed a .pc file,
+            # then use that information and don't search ssldirs
+            AC_PATH_PROG([PKG_CONFIG], [pkg-config])
+            if test x"$PKG_CONFIG" != x""; then
+                OPENSSL_LDFLAGS=`$PKG_CONFIG openssl --libs-only-L 2>/dev/null`
+                if test $? = 0; then
+                    OPENSSL_LIBS=`$PKG_CONFIG openssl --libs-only-l 2>/dev/null`
+                    OPENSSL_INCLUDES=`$PKG_CONFIG openssl --cflags-only-I 2>/dev/null`
+                    found=true
+                fi
+            fi
+
+            # no such luck; use some default ssldirs
+            if ! $found; then
+                ssldirs="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/sfw /usr/local /opt/local /usr"
+            fi
+        ]
+        )
+
+
+    # note that we #include <openssl/foo.h>, so the OpenSSL headers have to be in
+    # an 'openssl' subdirectory
+
+    if ! $found; then
+        OPENSSL_INCLUDES=
+        for ssldir in $ssldirs; do
+            AC_MSG_CHECKING([for openssl/ssl.h in $ssldir])
+            if test -f "$ssldir/include/openssl/ssl.h"; then
+                OPENSSL_INCLUDES="-I$ssldir/include"
+                if test -d "$ssldir/lib64"; then
+                  OPENSSL_LDFLAGS="-L$ssldir/lib64"
+                  if test "$overriden_with_ssl"; then
+                    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-rpath ${ssldir}/lib64])
+                  fi
+                else
+                  OPENSSL_LDFLAGS="-L$ssldir/lib"
+                  if test "$overriden_with_ssl"; then
+                    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-rpath ${ssldir}/lib])
+                  fi
+                fi
+                OPENSSL_LIBS="-lssl -lcrypto"
+                found=true
+                AC_MSG_RESULT([yes])
+                break
+            else
+                AC_MSG_RESULT([no])
+            fi
+        done
+
+        # if the file wasn't found, well, go ahead and try the link anyway -- maybe
+        # it will just work!
+    fi
+
+    # try the preprocessor and linker with our new flags,
+    # being careful not to pollute the global LIBS, LDFLAGS, and CPPFLAGS
+
+    AC_MSG_CHECKING([whether compiling and linking against OpenSSL works])
+    echo "Trying link with OPENSSL_LDFLAGS=$OPENSSL_LDFLAGS;" \
+        "OPENSSL_LIBS=$OPENSSL_LIBS; OPENSSL_INCLUDES=$OPENSSL_INCLUDES" >&AS_MESSAGE_LOG_FD
+
+    save_LIBS="$LIBS"
+    save_LDFLAGS="$LDFLAGS"
+    save_CPPFLAGS="$CPPFLAGS"
+    LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
+    LIBS="$OPENSSL_LIBS $LIBS"
+    CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS"
+    AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM([#include <openssl/ssl.h>], [SSL_new(NULL)])],
+        [
+            AC_MSG_RESULT([yes])
+            $1
+        ], [
+            AC_MSG_RESULT([no])
+            $2
+        ])
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+
+    AC_SUBST([OPENSSL_INCLUDES])
+    AC_SUBST([OPENSSL_LIBS])
+    AC_SUBST([OPENSSL_LDFLAGS])
+])
diff --git a/build/ax_compare_version.m4 b/build/ax_compare_version.m4
new file mode 100644
index 00000000..74dc0fdd
--- /dev/null
+++ b/build/ax_compare_version.m4
@@ -0,0 +1,177 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_compare_version.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_COMPARE_VERSION(VERSION_A, OP, VERSION_B, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
+#
+# DESCRIPTION
+#
+#   This macro compares two version strings. Due to the various number of
+#   minor-version numbers that can exist, and the fact that string
+#   comparisons are not compatible with numeric comparisons, this is not
+#   necessarily trivial to do in a autoconf script. This macro makes doing
+#   these comparisons easy.
+#
+#   The six basic comparisons are available, as well as checking equality
+#   limited to a certain number of minor-version levels.
+#
+#   The operator OP determines what type of comparison to do, and can be one
+#   of:
+#
+#    eq  - equal (test A == B)
+#    ne  - not equal (test A != B)
+#    le  - less than or equal (test A <= B)
+#    ge  - greater than or equal (test A >= B)
+#    lt  - less than (test A < B)
+#    gt  - greater than (test A > B)
+#
+#   Additionally, the eq and ne operator can have a number after it to limit
+#   the test to that number of minor versions.
+#
+#    eq0 - equal up to the length of the shorter version
+#    ne0 - not equal up to the length of the shorter version
+#    eqN - equal up to N sub-version levels
+#    neN - not equal up to N sub-version levels
+#
+#   When the condition is true, shell commands ACTION-IF-TRUE are run,
+#   otherwise shell commands ACTION-IF-FALSE are run. The environment
+#   variable 'ax_compare_version' is always set to either 'true' or 'false'
+#   as well.
+#
+#   Examples:
+#
+#     AX_COMPARE_VERSION([3.15.7],[lt],[3.15.8])
+#     AX_COMPARE_VERSION([3.15],[lt],[3.15.8])
+#
+#   would both be true.
+#
+#     AX_COMPARE_VERSION([3.15.7],[eq],[3.15.8])
+#     AX_COMPARE_VERSION([3.15],[gt],[3.15.8])
+#
+#   would both be false.
+#
+#     AX_COMPARE_VERSION([3.15.7],[eq2],[3.15.8])
+#
+#   would be true because it is only comparing two minor versions.
+#
+#     AX_COMPARE_VERSION([3.15.7],[eq0],[3.15])
+#
+#   would be true because it is only comparing the lesser number of minor
+#   versions of the two values.
+#
+#   Note: The characters that separate the version numbers do not matter. An
+#   empty string is the same as version 0. OP is evaluated by autoconf, not
+#   configure, so must be a string, not a variable.
+#
+#   The author would like to acknowledge Guido Draheim whose advice about
+#   the m4_case and m4_ifvaln functions make this macro only include the
+#   portions necessary to perform the specific comparison specified by the
+#   OP argument in the final configure script.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Tim Toolan <toolan@ele.uri.edu>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 11
+
+dnl #########################################################################
+AC_DEFUN([AX_COMPARE_VERSION], [
+  AC_REQUIRE([AC_PROG_AWK])
+
+  # Used to indicate true or false condition
+  ax_compare_version=false
+
+  # Convert the two version strings to be compared into a format that
+  # allows a simple string comparison.  The end result is that a version
+  # string of the form 1.12.5-r617 will be converted to the form
+  # 0001001200050617.  In other words, each number is zero padded to four
+  # digits, and non digits are removed.
+  AS_VAR_PUSHDEF([A],[ax_compare_version_A])
+  A=`echo "$1" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
+                     -e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/[[^0-9]]//g'`
+
+  AS_VAR_PUSHDEF([B],[ax_compare_version_B])
+  B=`echo "$3" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
+                     -e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
+                     -e 's/[[^0-9]]//g'`
+
+  dnl # In the case of le, ge, lt, and gt, the strings are sorted as necessary
+  dnl # then the first line is used to determine if the condition is true.
+  dnl # The sed right after the echo is to remove any indented white space.
+  m4_case(m4_tolower($2),
+  [lt],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/false/;s/x${B}/true/;1q"`
+  ],
+  [gt],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort | sed "s/x${A}/false/;s/x${B}/true/;1q"`
+  ],
+  [le],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort | sed "s/x${A}/true/;s/x${B}/false/;1q"`
+  ],
+  [ge],[
+    ax_compare_version=`echo "x$A
+x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/true/;s/x${B}/false/;1q"`
+  ],[
+    dnl Split the operator from the subversion count if present.
+    m4_bmatch(m4_substr($2,2),
+    [0],[
+      # A count of zero means use the length of the shorter version.
+      # Determine the number of characters in A and B.
+      ax_compare_version_len_A=`echo "$A" | $AWK '{print(length)}'`
+      ax_compare_version_len_B=`echo "$B" | $AWK '{print(length)}'`
+
+      # Set A to no more than B's length and B to no more than A's length.
+      A=`echo "$A" | sed "s/\(.\{$ax_compare_version_len_B\}\).*/\1/"`
+      B=`echo "$B" | sed "s/\(.\{$ax_compare_version_len_A\}\).*/\1/"`
+    ],
+    [[0-9]+],[
+      # A count greater than zero means use only that many subversions
+      A=`echo "$A" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
+      B=`echo "$B" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
+    ],
+    [.+],[
+      AC_WARNING(
+        [illegal OP numeric parameter: $2])
+    ],[])
+
+    # Pad zeros at end of numbers to make same length.
+    ax_compare_version_tmp_A="$A`echo $B | sed 's/./0/g'`"
+    B="$B`echo $A | sed 's/./0/g'`"
+    A="$ax_compare_version_tmp_A"
+
+    # Check for equality or inequality as necessary.
+    m4_case(m4_tolower(m4_substr($2,0,2)),
+    [eq],[
+      test "x$A" = "x$B" && ax_compare_version=true
+    ],
+    [ne],[
+      test "x$A" != "x$B" && ax_compare_version=true
+    ],[
+      AC_WARNING([illegal OP parameter: $2])
+    ])
+  ])
+
+  AS_VAR_POPDEF([A])dnl
+  AS_VAR_POPDEF([B])dnl
+
+  dnl # Execute ACTION-IF-TRUE / ACTION-IF-FALSE.
+  if test "$ax_compare_version" = "true" ; then
+    m4_ifvaln([$4],[$4],[:])dnl
+    m4_ifvaln([$5],[else $5])dnl
+  fi
+]) dnl AX_COMPARE_VERSION
diff --git a/build/ax_compiler_vendor.m4 b/build/ax_compiler_vendor.m4
new file mode 100644
index 00000000..73e32ea9
--- /dev/null
+++ b/build/ax_compiler_vendor.m4
@@ -0,0 +1,84 @@
+# ===========================================================================
+#    http://www.gnu.org/software/autoconf-archive/ax_compiler_vendor.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_COMPILER_VENDOR
+#
+# DESCRIPTION
+#
+#   Determine the vendor of the C/C++ compiler, e.g., gnu, intel, ibm, sun,
+#   hp, borland, comeau, dec, cray, kai, lcc, metrowerks, sgi, microsoft,
+#   watcom, etc. The vendor is returned in the cache variable
+#   $ax_cv_c_compiler_vendor for C and $ax_cv_cxx_compiler_vendor for C++.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
+#   Copyright (c) 2008 Matteo Frigo
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 11
+
+AC_DEFUN([AX_COMPILER_VENDOR],
+[AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
+  [# note: don't check for gcc first since some other compilers define __GNUC__
+  vendors="intel:     __ICC,__ECC,__INTEL_COMPILER
+           ibm:       __xlc__,__xlC__,__IBMC__,__IBMCPP__
+           pathscale: __PATHCC__,__PATHSCALE__
+           clang:     __clang__
+           gnu:       __GNUC__
+           sun:       __SUNPRO_C,__SUNPRO_CC
+           hp:        __HP_cc,__HP_aCC
+           dec:       __DECC,__DECCXX,__DECC_VER,__DECCXX_VER
+           borland:   __BORLANDC__,__TURBOC__
+           comeau:    __COMO__
+           cray:      _CRAYC
+           kai:       __KCC
+           lcc:       __LCC__
+           sgi:       __sgi,sgi
+           microsoft: _MSC_VER
+           metrowerks: __MWERKS__
+           watcom:    __WATCOMC__
+           portland:  __PGI
+           unknown:   UNKNOWN"
+  for ventest in $vendors; do
+    case $ventest in
+      *:) vendor=$ventest; continue ;;
+      *)  vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")" ;;
+    esac
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
+      #if !($vencpp)
+        thisisanerror;
+      #endif
+    ])], [break])
+  done
+  ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=`echo $vendor | cut -d: -f1`
+ ])
+])
diff --git a/build/ax_cxx_compile_stdcxx_11.m4 b/build/ax_cxx_compile_stdcxx_11.m4
new file mode 100644
index 00000000..e4ba5f55
--- /dev/null
+++ b/build/ax_cxx_compile_stdcxx_11.m4
@@ -0,0 +1,116 @@
+# ============================================================================
+#  http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_11.html
+# ============================================================================
+#
+# SYNOPSIS
+#
+#   AX_CXX_COMPILE_STDCXX_11([ext|noext],[action-if-success],[action-if-failure])
+#
+# DESCRIPTION
+#
+#   Check for baseline language coverage in the compiler for the C++11
+#   standard; if necessary, add switches to CXXFLAGS to enable support.
+#   Errors out if no mode that supports C++11 baseline syntax can be found.
+#   The argument, if specified, indicates whether you insist on an extended
+#   mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. -std=c++11).
+#   If neither is specified, you get whatever works, with preference for an
+#   extended mode.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
+#   Copyright (c) 2012 Zack Weinberg <zackw@panix.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+m4_define([_AX_CXX_COMPILE_STDCXX_11_testbody], [
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+
+    struct in_class_initialization {
+      int i = 0;
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);
+
+    void * null_pointer_keyword = nullptr;
+])
+
+AC_DEFUN([AX_CXX_COMPILE_STDCXX_11], [dnl
+  m4_if([$1], [], [],
+        [$1], [ext], [],
+        [$1], [noext], [],
+        [m4_fatal([invalid argument `$1' to AX_CXX_COMPILE_STDCXX_11])])dnl
+  AC_LANG_ASSERT([C++])dnl
+  ac_success=no
+  AC_CACHE_CHECK(whether $CXX supports C++11 features by default,
+  ax_cv_cxx_compile_cxx11,
+  [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])],
+    [ax_cv_cxx_compile_cxx11=yes],
+    [ax_cv_cxx_compile_cxx11=no])])
+  if test x$ax_cv_cxx_compile_cxx11 = xyes; then
+    ac_success=yes
+  fi
+
+  m4_if([$1], [noext], [], [dnl
+  if test x$ac_success = xno; then
+    for switch in -std=gnu++11 -std=gnu++0x; do
+      cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx11_$switch])
+      AC_CACHE_CHECK(whether $CXX supports C++11 features with $switch,
+                     $cachevar,
+        [ac_save_CXXFLAGS="$CXXFLAGS"
+         CXXFLAGS="$CXXFLAGS $switch"
+         AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])],
+          [eval $cachevar=yes],
+          [eval $cachevar=no])
+         CXXFLAGS="$ac_save_CXXFLAGS"])
+      if eval test x\$$cachevar = xyes; then
+        CXXFLAGS="$CXXFLAGS $switch"
+        ac_success=yes
+        break
+      fi
+    done
+  fi])
+
+  m4_if([$1], [ext], [], [dnl
+  if test x$ac_success = xno; then
+    for switch in -std=c++11 -std=c++0x; do
+      cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx11_$switch])
+      AC_CACHE_CHECK(whether $CXX supports C++11 features with $switch,
+                     $cachevar,
+        [ac_save_CXXFLAGS="$CXXFLAGS"
+         CXXFLAGS="$CXXFLAGS $switch"
+         AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_11_testbody])],
+          [eval $cachevar=yes],
+          [eval $cachevar=no])
+         CXXFLAGS="$ac_save_CXXFLAGS"])
+      if eval test x\$$cachevar = xyes; then
+        CXXFLAGS="$CXXFLAGS $switch"
+        ac_success=yes
+        break
+      fi
+    done
+  fi])
+
+  if test x$ac_success = xno ; then
+    m4_if([$3], [], [true], [$3])
+  else
+    m4_if([$2], [], [true], [$2])
+  fi
+])
diff --git a/build/ax_lib_curl.m4 b/build/ax_lib_curl.m4
new file mode 100644
index 00000000..198e87ad
--- /dev/null
+++ b/build/ax_lib_curl.m4
@@ -0,0 +1,38 @@
+# ===========================================================================
+#        http://www.gnu.org/software/autoconf-archive/ax_lib_curl.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_LIB_CURL([VERSION],[ACTION-IF-SUCCESS],[ACTION-IF-FAILURE])
+#
+# DESCRIPTION
+#
+#   Checks for minimum curl library version VERSION. If successfull executes
+#   ACTION-IF-SUCCESS otherwise ACTION-IF-FAILURE.
+#
+#   Defines CURL_LIBS and CURL_CFLAGS.
+#
+#   A simple example:
+#
+#     AX_LIB_CURL([7.19.4],,[
+#       AC_MSG_ERROR([Your system lacks of libcurl >= 7.19.4])
+#     ])
+#
+#   This macro is a rearranged version of AC_LIB_CURL from Akos Maroy.
+#
+# LICENSE
+#
+#   Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 7
+
+AU_ALIAS([AC_CHECK_CURL], [AX_LIB_CURL])
+AC_DEFUN([AX_LIB_CURL], [
+  AX_PATH_GENERIC([curl],[$1],['s/^libcurl\ \+//'],[$2],[$3])
+])
diff --git a/build/ax_lib_readline.m4 b/build/ax_lib_readline.m4
new file mode 100644
index 00000000..1af80b25
--- /dev/null
+++ b/build/ax_lib_readline.m4
@@ -0,0 +1,110 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_lib_readline.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_LIB_READLINE
+#
+# DESCRIPTION
+#
+#   Searches for a readline compatible library. If found, defines
+#   `HAVE_LIBREADLINE'. If the found library has the `add_history' function,
+#   sets also `HAVE_READLINE_HISTORY'. Also checks for the locations of the
+#   necessary include files and sets `HAVE_READLINE_H' or
+#   `HAVE_READLINE_READLINE_H' and `HAVE_READLINE_HISTORY_H' or
+#   'HAVE_HISTORY_H' if the corresponding include files exists.
+#
+#   The libraries that may be readline compatible are `libedit',
+#   `libeditline' and `libreadline'. Sometimes we need to link a termcap
+#   library for readline to work, this macro tests these cases too by trying
+#   to link with `libtermcap', `libcurses' or `libncurses' before giving up.
+#
+#   Here is an example of how to use the information provided by this macro
+#   to perform the necessary includes or declarations in a C file:
+#
+#     #ifdef HAVE_LIBREADLINE
+#     #  if defined(HAVE_READLINE_READLINE_H)
+#     #    include <readline/readline.h>
+#     #  elif defined(HAVE_READLINE_H)
+#     #    include <readline.h>
+#     #  else /* !defined(HAVE_READLINE_H) */
+#     extern char *readline ();
+#     #  endif /* !defined(HAVE_READLINE_H) */
+#     char *cmdline = NULL;
+#     #else /* !defined(HAVE_READLINE_READLINE_H) */
+#       /* no readline */
+#     #endif /* HAVE_LIBREADLINE */
+#
+#     #ifdef HAVE_READLINE_HISTORY
+#     #  if defined(HAVE_READLINE_HISTORY_H)
+#     #    include <readline/history.h>
+#     #  elif defined(HAVE_HISTORY_H)
+#     #    include <history.h>
+#     #  else /* !defined(HAVE_HISTORY_H) */
+#     extern void add_history ();
+#     extern int write_history ();
+#     extern int read_history ();
+#     #  endif /* defined(HAVE_READLINE_HISTORY_H) */
+#       /* no history */
+#     #endif /* HAVE_READLINE_HISTORY */
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Ville Laurikari <vl@iki.fi>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 6
+
+AU_ALIAS([VL_LIB_READLINE], [AX_LIB_READLINE])
+AC_DEFUN([AX_LIB_READLINE], [
+  AC_CACHE_CHECK([for a readline compatible library],
+                 ax_cv_lib_readline, [
+    ORIG_LIBS="$LIBS"
+    for readline_lib in edit editline; do
+      for termcap_lib in "" termcap curses ncurses; do
+        if test -z "$termcap_lib"; then
+          TRY_LIB="-l$readline_lib"
+        else
+          TRY_LIB="-l$readline_lib -l$termcap_lib"
+        fi
+        LIBS="$ORIG_LIBS $TRY_LIB"
+        AC_TRY_LINK_FUNC(readline, ax_cv_lib_readline="$TRY_LIB")
+        if test -n "$ax_cv_lib_readline"; then
+          break
+        fi
+      done
+      if test -n "$ax_cv_lib_readline"; then
+        break
+      fi
+    done
+    if test -z "$ax_cv_lib_readline"; then
+      ax_cv_lib_readline="no"
+    fi
+    LIBS="$ORIG_LIBS"
+  ])
+
+  if test "$ax_cv_lib_readline" != "no"; then
+    ORIG_LIBS="$LIBS"
+    LIBS="$LIBS $ax_cv_lib_readline"
+    AC_SUBST(LIBREADLINE, [$ax_cv_lib_readline])
+    AC_DEFINE(HAVE_LIBREADLINE, 1,
+              [Define if you have a readline compatible library])
+    AC_CHECK_HEADERS(readline.h readline/readline.h)
+    AC_CACHE_CHECK([whether readline supports history],
+                   ax_cv_lib_readline_history, [
+      ax_cv_lib_readline_history="no"
+      AC_TRY_LINK_FUNC(add_history, ax_cv_lib_readline_history="yes")
+    ])
+    if test "$ax_cv_lib_readline_history" = "yes"; then
+      AC_DEFINE(HAVE_READLINE_HISTORY, 1,
+                [Define if your readline library has \`add_history'])
+      AC_CHECK_HEADERS(history.h readline/history.h)
+    fi
+    LIBS="$ORIG_LIBS"
+  fi
+])dnl
diff --git a/build/ax_path_generic.m4 b/build/ax_path_generic.m4
new file mode 100644
index 00000000..351360da
--- /dev/null
+++ b/build/ax_path_generic.m4
@@ -0,0 +1,164 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_path_generic.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_PATH_GENERIC(LIBRARY,[MINIMUM-VERSION,[SED-EXPR-EXTRACTOR]],[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],[CONFIG-SCRIPTS],[CFLAGS-ARG],[LIBS-ARG])
+#
+# DESCRIPTION
+#
+#   Runs the LIBRARY-config script and defines LIBRARY_CFLAGS and
+#   LIBRARY_LIBS unless the user had predefined them in the environment.
+#
+#   The script must support `--cflags' and `--libs' args. If MINIMUM-VERSION
+#   is specified, the script must also support the `--version' arg. If the
+#   `--with-library-[exec-]prefix' arguments to ./configure are given, it
+#   must also support `--prefix' and `--exec-prefix'. Prefereable use
+#   CONFIG-SCRIPTS as config script, CFLAGS-ARG instead of `--cflags` and
+#   LIBS-ARG instead of `--libs`, if given.
+#
+#   The SED-EXPR-EXTRACTOR parameter representes the expression used in sed
+#   to extract the version number. Use it if your 'foo-config --version'
+#   dumps something like 'Foo library v1.0.0 (alfa)' instead of '1.0.0'.
+#
+#   The macro respects LIBRARY_CONFIG, LIBRARY_CFLAGS and LIBRARY_LIBS
+#   variables. If the first one is defined, it specifies the name of the
+#   config script to use. If the latter two are defined, the script is not
+#   ran at all and their values are used instead (if only one of them is
+#   defined, the empty value of the remaining one is still used).
+#
+#   Example:
+#
+#     AX_PATH_GENERIC(Foo, 1.0.0)
+#
+#   would run `foo-config --version' and check that it is at least 1.0.0, if
+#   successful the following variables would be defined and substituted:
+#
+#     FOO_CFLAGS to `foo-config --cflags`
+#     FOO_LIBS   to `foo-config --libs`
+#
+#   Example:
+#
+#     AX_PATH_GENERIC([Bar],,,[
+#        AC_MSG_ERROR([Cannot find Bar library])
+#     ])
+#
+#   would check for bar-config program, defining and substituting the
+#   following variables:
+#
+#     BAR_CFLAGS to `bar-config --cflags`
+#     BAR_LIBS   to `bar-config --libs`
+#
+#   Example:
+#
+#     ./configure BAZ_LIBS=/usr/lib/libbaz.a
+#
+#   would link with a static version of baz library even if `baz-config
+#   --libs` returns just "-lbaz" that would normally result in using the
+#   shared library.
+#
+#   This macro is a rearranged version of AC_PATH_GENERIC from Angus Lees.
+#
+# LICENSE
+#
+#   Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 11
+
+AU_ALIAS([AC_PATH_GENERIC], [AX_PATH_GENERIC])
+AC_DEFUN([AX_PATH_GENERIC],[
+  AC_REQUIRE([AC_PROG_SED])
+
+  dnl we're going to need uppercase and lowercase versions of the
+  dnl string `LIBRARY'
+  pushdef([UP],   translit([$1], [a-z], [A-Z]))dnl
+  pushdef([DOWN], translit([$1], [A-Z], [a-z]))dnl
+
+  AC_ARG_WITH(DOWN-prefix,[AS_HELP_STRING([--with-]DOWN[-prefix=PREFIX], [Prefix where $1 is installed (optional)])],
+    DOWN[]_config_prefix="$withval", DOWN[]_config_prefix="")
+  AC_ARG_WITH(DOWN-exec-prefix,[AS_HELP_STRING([--with-]DOWN[-exec-prefix=EPREFIX], [Exec prefix where $1 is installed (optional)])],
+    DOWN[]_config_exec_prefix="$withval", DOWN[]_config_exec_prefix="")
+
+  AC_ARG_VAR(UP[]_CONFIG, [config script used for $1])
+  AC_ARG_VAR(UP[]_CFLAGS, [CFLAGS used for $1])
+  AC_ARG_VAR(UP[]_LIBS,   [LIBS used for $1])
+
+  AS_IF([test x$UP[]_CFLAGS != x -o x$UP[]_LIBS != x],[
+    dnl Don't run config script at all, use user-provided values instead.
+    AC_SUBST(UP[]_CFLAGS)
+    AC_SUBST(UP[]_LIBS)
+    :
+    $4
+  ],[
+    AS_IF([test x$DOWN[]_config_exec_prefix != x],[
+      DOWN[]_config_args="$DOWN[]_config_args --exec-prefix=$DOWN[]_config_exec_prefix"
+      AS_IF([test x${UP[]_CONFIG+set} != xset],[
+	UP[]_CONFIG=$DOWN[]_config_exec_prefix/bin/DOWN-config
+      ])
+    ])
+    AS_IF([test x$DOWN[]_config_prefix != x],[
+      DOWN[]_config_args="$DOWN[]_config_args --prefix=$DOWN[]_config_prefix"
+      AS_IF([test x${UP[]_CONFIG+set} != xset],[
+	UP[]_CONFIG=$DOWN[]_config_prefix/bin/DOWN-config
+      ])
+    ])
+
+    AC_PATH_PROGS(UP[]_CONFIG,[$6 DOWN-config],[no])
+    AS_IF([test "$UP[]_CONFIG" == "no"],[
+      :
+      $5
+    ],[
+      dnl Get the CFLAGS from LIBRARY-config script
+      AS_IF([test x"$7" == x],[
+	UP[]_CFLAGS="`$UP[]_CONFIG $DOWN[]_config_args --cflags`"
+      ],[
+	UP[]_CFLAGS="`$UP[]_CONFIG $DOWN[]_config_args $7`"
+      ])
+
+      dnl Get the LIBS from LIBRARY-config script
+      AS_IF([test x"$8" == x],[
+	UP[]_LIBS="`$UP[]_CONFIG $DOWN[]_config_args --libs`"
+      ],[
+	UP[]_LIBS="`$UP[]_CONFIG $DOWN[]_config_args $8`"
+      ])
+
+      AS_IF([test x"$2" != x],[
+	dnl Check for provided library version
+	AS_IF([test x"$3" != x],[
+	  dnl Use provided sed expression
+	  DOWN[]_version="`$UP[]_CONFIG $DOWN[]_config_args --version | $SED -e $3`"
+	],[
+	  DOWN[]_version="`$UP[]_CONFIG $DOWN[]_config_args --version | $SED -e 's/^\ *\(.*\)\ *$/\1/'`"
+	])
+
+	AC_MSG_CHECKING([for $1 ($DOWN[]_version) >= $2])
+	AX_COMPARE_VERSION($DOWN[]_version,[ge],[$2],[
+	  AC_MSG_RESULT([yes])
+
+	  AC_SUBST(UP[]_CFLAGS)
+	  AC_SUBST(UP[]_LIBS)
+	  :
+	  $4
+	],[
+	  AC_MSG_RESULT([no])
+	  :
+	  $5
+	])
+      ],[
+	AC_SUBST(UP[]_CFLAGS)
+	AC_SUBST(UP[]_LIBS)
+	:
+	$4
+      ])
+    ])
+  ])
+
+  popdef([UP])
+  popdef([DOWN])
+])
diff --git a/build/ax_perl_modules.m4 b/build/ax_perl_modules.m4
new file mode 100644
index 00000000..4d881d46
--- /dev/null
+++ b/build/ax_perl_modules.m4
@@ -0,0 +1,51 @@
+# LICENSE
+#
+#   Copyright (c) 2009 Dean Povey <povey@wedgetail.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+#
+# Use: AX_PROG_PERL_MODULES([modules ...], true, false )
+#
+# This should only be used after the test for the Perl module in configure.ac.
+#
+#serial 7
+
+AU_ALIAS([AC_PROG_PERL_MODULES], [AX_PROG_PERL_MODULES])
+AC_DEFUN([AX_PROG_PERL_MODULES],[dnl
+
+m4_define([ax_perl_modules])
+m4_foreach([ax_perl_module], m4_split(m4_normalize([$1])),
+	  [
+	   m4_append([ax_perl_modules],
+		     [']m4_bpatsubst(ax_perl_module,=,[ ])[' ])
+          ])
+
+if test "x$PERL" != x; then
+  ax_perl_modules_failed=0
+  for ax_perl_module in ax_perl_modules; do
+    AC_MSG_CHECKING(for perl module $ax_perl_module)
+
+    # Would be nice to log result here, but can't rely on autoconf internals
+    $PERL -e "use $ax_perl_module; exit" > /dev/null 2>&1
+    if test $? -ne 0; then
+      AC_MSG_RESULT(no);
+      ax_perl_modules_failed=1
+   else
+      AC_MSG_RESULT(ok);
+    fi
+  done
+
+  # Run optional shell commands
+  if test "$ax_perl_modules_failed" = 0; then
+    :
+    $2
+  else
+    :
+    $3
+  fi
+else
+  AC_MSG_WARN(could not find perl)
+fi])
diff --git a/build/ax_with_curses.m4 b/build/ax_with_curses.m4
new file mode 100644
index 00000000..33a37ac9
--- /dev/null
+++ b/build/ax_with_curses.m4
@@ -0,0 +1,518 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_with_curses.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_WITH_CURSES
+#
+# DESCRIPTION
+#
+#   This macro checks whether a SysV or X/Open-compatible Curses library is
+#   present, along with the associated header file.  The NcursesW
+#   (wide-character) library is searched for first, followed by Ncurses,
+#   then the system-default plain Curses.  The first library found is the
+#   one returned.
+#
+#   The following options are understood: --with-ncursesw, --with-ncurses,
+#   --without-ncursesw, --without-ncurses.  The "--with" options force the
+#   macro to use that particular library, terminating with an error if not
+#   found.  The "--without" options simply skip the check for that library.
+#   The effect on the search pattern is:
+#
+#     (no options)                           - NcursesW, Ncurses, Curses
+#     --with-ncurses     --with-ncursesw     - NcursesW only [*]
+#     --without-ncurses  --with-ncursesw     - NcursesW only [*]
+#                        --with-ncursesw     - NcursesW only [*]
+#     --with-ncurses     --without-ncursesw  - Ncurses only [*]
+#     --with-ncurses                         - NcursesW, Ncurses [**]
+#     --without-ncurses  --without-ncursesw  - Curses only
+#                        --without-ncursesw  - Ncurses, Curses
+#     --without-ncurses                      - NcursesW, Curses
+#
+#   [*]  If the library is not found, abort the configure script.
+#
+#   [**] If the second library (Ncurses) is not found, abort configure.
+#
+#   The following preprocessor symbols may be defined by this macro if the
+#   appropriate conditions are met:
+#
+#     HAVE_CURSES             - if any SysV or X/Open Curses library found
+#     HAVE_CURSES_ENHANCED    - if library supports X/Open Enhanced functions
+#     HAVE_CURSES_COLOR       - if library supports color (enhanced functions)
+#     HAVE_CURSES_OBSOLETE    - if library supports certain obsolete features
+#     HAVE_NCURSESW           - if NcursesW (wide char) library is to be used
+#     HAVE_NCURSES            - if the Ncurses library is to be used
+#
+#     HAVE_CURSES_H           - if <curses.h> is present and should be used
+#     HAVE_NCURSESW_H         - if <ncursesw.h> should be used
+#     HAVE_NCURSES_H          - if <ncurses.h> should be used
+#     HAVE_NCURSESW_CURSES_H  - if <ncursesw/curses.h> should be used
+#     HAVE_NCURSES_CURSES_H   - if <ncurses/curses.h> should be used
+#
+#   (These preprocessor symbols are discussed later in this document.)
+#
+#   The following output variable is defined by this macro; it is precious
+#   and may be overridden on the ./configure command line:
+#
+#     CURSES_LIB  - library to add to xxx_LDADD
+#
+#   The library listed in CURSES_LIB is NOT added to LIBS by default. You
+#   need to add CURSES_LIB to the appropriate xxx_LDADD line in your
+#   Makefile.am.  For example:
+#
+#     prog_LDADD = @CURSES_LIB@
+#
+#   If CURSES_LIB is set on the configure command line (such as by running
+#   "./configure CURSES_LIB=-lmycurses"), then the only header searched for
+#   is <curses.h>.  The user may use the CPPFLAGS precious variable to
+#   override the standard #include search path.  If the user needs to
+#   specify an alternative path for a library (such as for a non-standard
+#   NcurseW), the user should use the LDFLAGS variable.
+#
+#   The following shell variables may be defined by this macro:
+#
+#     ax_cv_curses           - set to "yes" if any Curses library found
+#     ax_cv_curses_enhanced  - set to "yes" if Enhanced functions present
+#     ax_cv_curses_color     - set to "yes" if color functions present
+#     ax_cv_curses_obsolete  - set to "yes" if obsolete features present
+#
+#     ax_cv_ncursesw      - set to "yes" if NcursesW library found
+#     ax_cv_ncurses       - set to "yes" if Ncurses library found
+#     ax_cv_plaincurses   - set to "yes" if plain Curses library found
+#     ax_cv_curses_which  - set to "ncursesw", "ncurses", "plaincurses" or "no"
+#
+#   These variables can be used in your configure.ac to determine the level
+#   of support you need from the Curses library.  For example, if you must
+#   have either Ncurses or NcursesW, you could include:
+#
+#     AX_WITH_CURSES
+#     if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
+#         AX_MSG_ERROR([requires either NcursesW or Ncurses library])
+#     fi
+#
+#   If any Curses library will do (but one must be present and must support
+#   color), you could use:
+#
+#     AX_WITH_CURSES
+#     if test "x$ax_cv_curses" != xyes || test "x$ax_cv_curses_color" != xyes; then
+#         AC_MSG_ERROR([requires an X/Open-compatible Curses library with color])
+#     fi
+#
+#   Certain preprocessor symbols and shell variables defined by this macro
+#   can be used to determine various features of the Curses library.  In
+#   particular, HAVE_CURSES and ax_cv_curses are defined if the Curses
+#   library found conforms to the traditional SysV and/or X/Open Base Curses
+#   definition.  Any working Curses library conforms to this level.
+#
+#   HAVE_CURSES_ENHANCED and ax_cv_curses_enhanced are defined if the
+#   library supports the X/Open Enhanced Curses definition.  In particular,
+#   the wide-character types attr_t, cchar_t and wint_t, the functions
+#   wattr_set() and wget_wch() and the macros WA_NORMAL and _XOPEN_CURSES
+#   are checked.  The Ncurses library does NOT conform to this definition,
+#   although NcursesW does.
+#
+#   HAVE_CURSES_COLOR and ax_cv_curses_color are defined if the library
+#   supports color functions and macros such as COLOR_PAIR, A_COLOR,
+#   COLOR_WHITE, COLOR_RED and init_pair().  These are NOT part of the
+#   X/Open Base Curses definition, but are part of the Enhanced set of
+#   functions.  The Ncurses library DOES support these functions, as does
+#   NcursesW.
+#
+#   HAVE_CURSES_OBSOLETE and ax_cv_curses_obsolete are defined if the
+#   library supports certain features present in SysV and BSD Curses but not
+#   defined in the X/Open definition.  In particular, the functions
+#   getattrs(), getcurx() and getmaxx() are checked.
+#
+#   To use the HAVE_xxx_H preprocessor symbols, insert the following into
+#   your system.h (or equivalent) header file:
+#
+#     #if defined HAVE_NCURSESW_CURSES_H
+#     #  include <ncursesw/curses.h>
+#     #elif defined HAVE_NCURSESW_H
+#     #  include <ncursesw.h>
+#     #elif defined HAVE_NCURSES_CURSES_H
+#     #  include <ncurses/curses.h>
+#     #elif defined HAVE_NCURSES_H
+#     #  include <ncurses.h>
+#     #elif defined HAVE_CURSES_H
+#     #  include <curses.h>
+#     #else
+#     #  error "SysV or X/Open-compatible Curses header file required"
+#     #endif
+#
+#   For previous users of this macro: you should not need to change anything
+#   in your configure.ac or Makefile.am, as the previous (serial 10)
+#   semantics are still valid.  However, you should update your system.h (or
+#   equivalent) header file to the fragment shown above. You are encouraged
+#   also to make use of the extended functionality provided by this version
+#   of AX_WITH_CURSES, as well as in the additional macros
+#   AX_WITH_CURSES_PANEL, AX_WITH_CURSES_MENU and AX_WITH_CURSES_FORM.
+#
+# LICENSE
+#
+#   Copyright (c) 2009 Mark Pulford <mark@kyne.com.au>
+#   Copyright (c) 2009 Damian Pietras <daper@daper.net>
+#   Copyright (c) 2012 Reuben Thomas <rrt@sc3d.org>
+#   Copyright (c) 2011 John Zaitseff <J.Zaitseff@zap.org.au>
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+#serial 13
+
+AU_ALIAS([MP_WITH_CURSES], [AX_WITH_CURSES])
+AC_DEFUN([AX_WITH_CURSES], [
+    AC_ARG_VAR([CURSES_LIB], [linker library for Curses, e.g. -lcurses])
+    AC_ARG_WITH([ncurses], [AS_HELP_STRING([--with-ncurses],
+        [force the use of Ncurses or NcursesW])],
+        [], [with_ncurses=check])
+    AC_ARG_WITH([ncursesw], [AS_HELP_STRING([--without-ncursesw],
+        [do not use NcursesW (wide character support)])],
+        [], [with_ncursesw=check])
+
+    ax_saved_LIBS=$LIBS
+    AS_IF([test "x$with_ncurses" = xyes || test "x$with_ncursesw" = xyes],
+        [ax_with_plaincurses=no], [ax_with_plaincurses=check])
+
+    ax_cv_curses_which=no
+
+    # Test for NcursesW
+
+    AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncursesw" != xno], [
+        LIBS="$ax_saved_LIBS -lncursesw"
+
+        AC_CACHE_CHECK([for NcursesW wide-character library], [ax_cv_ncursesw], [
+            AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+                [ax_cv_ncursesw=yes], [ax_cv_ncursesw=no])
+        ])
+        AS_IF([test "x$ax_cv_ncursesw" = xno && test "x$with_ncursesw" = xyes], [
+            AC_MSG_ERROR([--with-ncursesw specified but could not find NcursesW library])
+        ])
+
+        AS_IF([test "x$ax_cv_ncursesw" = xyes], [
+            ax_cv_curses=yes
+            ax_cv_curses_which=ncursesw
+            CURSES_LIB="-lncursesw"
+            AC_DEFINE([HAVE_NCURSESW], [1], [Define to 1 if the NcursesW library is present])
+            AC_DEFINE([HAVE_CURSES],   [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
+
+            AC_CACHE_CHECK([for working ncursesw/curses.h], [ax_cv_header_ncursesw_curses_h], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@define _XOPEN_SOURCE_EXTENDED 1
+                        @%:@include <ncursesw/curses.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        attr_t d = WA_NORMAL;
+                        cchar_t e;
+                        wint_t f;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                        wattr_set(stdscr, d, 0, NULL);
+                        wget_wch(stdscr, &f);
+                    ]])],
+                    [ax_cv_header_ncursesw_curses_h=yes],
+                    [ax_cv_header_ncursesw_curses_h=no])
+            ])
+            AS_IF([test "x$ax_cv_header_ncursesw_curses_h" = xyes], [
+                ax_cv_curses_enhanced=yes
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+                AC_DEFINE([HAVE_CURSES_ENHANCED],   [1], [Define to 1 if library supports X/Open Enhanced functions])
+                AC_DEFINE([HAVE_CURSES_COLOR],      [1], [Define to 1 if library supports color (enhanced functions)])
+                AC_DEFINE([HAVE_CURSES_OBSOLETE],   [1], [Define to 1 if library supports certain obsolete features])
+                AC_DEFINE([HAVE_NCURSESW_CURSES_H], [1], [Define to 1 if <ncursesw/curses.h> is present])
+            ])
+
+            AC_CACHE_CHECK([for working ncursesw.h], [ax_cv_header_ncursesw_h], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@define _XOPEN_SOURCE_EXTENDED 1
+                        @%:@include <ncursesw.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        attr_t d = WA_NORMAL;
+                        cchar_t e;
+                        wint_t f;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                        wattr_set(stdscr, d, 0, NULL);
+                        wget_wch(stdscr, &f);
+                    ]])],
+                    [ax_cv_header_ncursesw_h=yes],
+                    [ax_cv_header_ncursesw_h=no])
+            ])
+            AS_IF([test "x$ax_cv_header_ncursesw_h" = xyes], [
+                ax_cv_curses_enhanced=yes
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+                AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+                AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
+                AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+                AC_DEFINE([HAVE_NCURSESW_H],      [1], [Define to 1 if <ncursesw.h> is present])
+            ])
+
+            AC_CACHE_CHECK([for working ncurses.h], [ax_cv_header_ncurses_h_with_ncursesw], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@define _XOPEN_SOURCE_EXTENDED 1
+                        @%:@include <ncurses.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        attr_t d = WA_NORMAL;
+                        cchar_t e;
+                        wint_t f;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                        wattr_set(stdscr, d, 0, NULL);
+                        wget_wch(stdscr, &f);
+                    ]])],
+                    [ax_cv_header_ncurses_h_with_ncursesw=yes],
+                    [ax_cv_header_ncurses_h_with_ncursesw=no])
+            ])
+            AS_IF([test "x$ax_cv_header_ncurses_h_with_ncursesw" = xyes], [
+                ax_cv_curses_enhanced=yes
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+                AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+                AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
+                AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+                AC_DEFINE([HAVE_NCURSES_H],       [1], [Define to 1 if <ncurses.h> is present])
+            ])
+
+            AS_IF([test "x$ax_cv_header_ncursesw_curses_h" = xno && test "x$ax_cv_header_ncursesw_h" = xno && test "x$ax_cv_header_ncurses_h_with_ncursesw" = xno], [
+                AC_MSG_WARN([could not find a working ncursesw/curses.h, ncursesw.h or ncurses.h])
+            ])
+        ])
+    ])
+
+    # Test for Ncurses
+
+    AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncurses" != xno && test "x$ax_cv_curses_which" = xno], [
+        LIBS="$ax_saved_LIBS -lncurses"
+
+        AC_CACHE_CHECK([for Ncurses library], [ax_cv_ncurses], [
+            AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+                [ax_cv_ncurses=yes], [ax_cv_ncurses=no])
+        ])
+        AS_IF([test "x$ax_cv_ncurses" = xno && test "x$with_ncurses" = xyes], [
+            AC_MSG_ERROR([--with-ncurses specified but could not find Ncurses library])
+        ])
+
+        AS_IF([test "x$ax_cv_ncurses" = xyes], [
+            ax_cv_curses=yes
+            ax_cv_curses_which=ncurses
+            CURSES_LIB="-lncurses"
+            AC_DEFINE([HAVE_NCURSES], [1], [Define to 1 if the Ncurses library is present])
+            AC_DEFINE([HAVE_CURSES],  [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
+
+            AC_CACHE_CHECK([for working ncurses/curses.h], [ax_cv_header_ncurses_curses_h], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@include <ncurses/curses.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                    ]])],
+                    [ax_cv_header_ncurses_curses_h=yes],
+                    [ax_cv_header_ncurses_curses_h=no])
+            ])
+            AS_IF([test "x$ax_cv_header_ncurses_curses_h" = xyes], [
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+                AC_DEFINE([HAVE_CURSES_COLOR],     [1], [Define to 1 if library supports color (enhanced functions)])
+                AC_DEFINE([HAVE_CURSES_OBSOLETE],  [1], [Define to 1 if library supports certain obsolete features])
+                AC_DEFINE([HAVE_NCURSES_CURSES_H], [1], [Define to 1 if <ncurses/curses.h> is present])
+            ])
+
+            AC_CACHE_CHECK([for working ncurses.h], [ax_cv_header_ncurses_h], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@include <ncurses.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                    ]])],
+                    [ax_cv_header_ncurses_h=yes],
+                    [ax_cv_header_ncurses_h=no])
+            ])
+            AS_IF([test "x$ax_cv_header_ncurses_h" = xyes], [
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+                AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
+                AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+                AC_DEFINE([HAVE_NCURSES_H],       [1], [Define to 1 if <ncurses.h> is present])
+            ])
+
+            AS_IF([test "x$ax_cv_header_ncurses_curses_h" = xno && test "x$ax_cv_header_ncurses_h" = xno], [
+                AC_MSG_WARN([could not find a working ncurses/curses.h or ncurses.h])
+            ])
+        ])
+    ])
+
+    # Test for plain Curses (or if CURSES_LIB was set by user)
+
+    AS_IF([test "x$with_plaincurses" != xno && test "x$ax_cv_curses_which" = xno], [
+        AS_IF([test "x$CURSES_LIB" != x], [
+            LIBS="$ax_saved_LIBS $CURSES_LIB"
+        ], [
+            LIBS="$ax_saved_LIBS -lcurses"
+        ])
+
+        AC_CACHE_CHECK([for Curses library], [ax_cv_plaincurses], [
+            AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+                [ax_cv_plaincurses=yes], [ax_cv_plaincurses=no])
+        ])
+
+        AS_IF([test "x$ax_cv_plaincurses" = xyes], [
+            ax_cv_curses=yes
+            ax_cv_curses_which=plaincurses
+            AS_IF([test "x$CURSES_LIB" = x], [
+                CURSES_LIB="-lcurses"
+            ])
+            AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
+
+            # Check for base conformance (and header file)
+
+            AC_CACHE_CHECK([for working curses.h], [ax_cv_header_curses_h], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@include <curses.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        initscr();
+                    ]])],
+                    [ax_cv_header_curses_h=yes],
+                    [ax_cv_header_curses_h=no])
+            ])
+            AS_IF([test "x$ax_cv_header_curses_h" = xyes], [
+                AC_DEFINE([HAVE_CURSES_H], [1], [Define to 1 if <curses.h> is present])
+
+                # Check for X/Open Enhanced conformance
+
+                AC_CACHE_CHECK([for X/Open Enhanced Curses conformance], [ax_cv_plaincurses_enhanced], [
+                    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                            @%:@define _XOPEN_SOURCE_EXTENDED 1
+                            @%:@include <curses.h>
+                            @%:@ifndef _XOPEN_CURSES
+                            @%:@error "this Curses library is not enhanced"
+                            "this Curses library is not enhanced"
+                            @%:@endif
+                        ]], [[
+                            chtype a = A_BOLD;
+                            int b = KEY_LEFT;
+                            chtype c = COLOR_PAIR(1) & A_COLOR;
+                            attr_t d = WA_NORMAL;
+                            cchar_t e;
+                            wint_t f;
+                            initscr();
+                            init_pair(1, COLOR_WHITE, COLOR_RED);
+                            wattr_set(stdscr, d, 0, NULL);
+                            wget_wch(stdscr, &f);
+                        ]])],
+                        [ax_cv_plaincurses_enhanced=yes],
+                        [ax_cv_plaincurses_enhanced=no])
+                ])
+                AS_IF([test "x$ax_cv_plaincurses_enhanced" = xyes], [
+                    ax_cv_curses_enhanced=yes
+                    ax_cv_curses_color=yes
+                    AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+                    AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
+                ])
+
+                # Check for color functions
+
+                AC_CACHE_CHECK([for Curses color functions], [ax_cv_plaincurses_color], [
+                    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@define _XOPEN_SOURCE_EXTENDED 1
+                        @%:@include <curses.h>
+                        ]], [[
+                            chtype a = A_BOLD;
+                            int b = KEY_LEFT;
+                            chtype c = COLOR_PAIR(1) & A_COLOR;
+                            initscr();
+                            init_pair(1, COLOR_WHITE, COLOR_RED);
+                        ]])],
+                        [ax_cv_plaincurses_color=yes],
+                        [ax_cv_plaincurses_color=no])
+                ])
+                AS_IF([test "x$ax_cv_plaincurses_color" = xyes], [
+                    ax_cv_curses_color=yes
+                    AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+                ])
+
+                # Check for obsolete functions
+
+                AC_CACHE_CHECK([for obsolete Curses functions], [ax_cv_plaincurses_obsolete], [
+                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                        @%:@include <curses.h>
+                    ]], [[
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                    ]])],
+                    [ax_cv_plaincurses_obsolete=yes],
+                    [ax_cv_plaincurses_obsolete=no])
+                ])
+                AS_IF([test "x$ax_cv_plaincurses_obsolete" = xyes], [
+                    ax_cv_curses_obsolete=yes
+                    AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+                ])
+            ])
+
+            AS_IF([test "x$ax_cv_header_curses_h" = xno], [
+                AC_MSG_WARN([could not find a working curses.h])
+            ])
+        ])
+    ])
+
+    AS_IF([test "x$ax_cv_curses"          != xyes], [ax_cv_curses=no])
+    AS_IF([test "x$ax_cv_curses_enhanced" != xyes], [ax_cv_curses_enhanced=no])
+    AS_IF([test "x$ax_cv_curses_color"    != xyes], [ax_cv_curses_color=no])
+    AS_IF([test "x$ax_cv_curses_obsolete" != xyes], [ax_cv_curses_obsolete=no])
+
+    LIBS=$ax_saved_LIBS
+])dnl
diff --git a/build/common.m4 b/build/common.m4
new file mode 100644
index 00000000..53902880
--- /dev/null
+++ b/build/common.m4
@@ -0,0 +1,585 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl common.m4: Trafficserver's general-purpose autoconf macros
+dnl
+
+dnl
+dnl TS_CONFIG_NICE(filename)
+dnl
+dnl Saves a snapshot of the configure command-line for later reuse
+dnl
+AC_DEFUN([TS_CONFIG_NICE], [
+  rm -f $1
+  cat >$1<<EOF
+#! /bin/sh
+#
+# Created by configure
+
+EOF
+  if test -n "$CC"; then
+    echo "CC=\"$CC\"; export CC" >> $1
+  fi
+  if test -n "$CXX"; then
+    echo "CXX=\"$CXX\"; export CXX" >> $1
+  fi
+  if test -n "$CFLAGS"; then
+    echo "CFLAGS=\"$CFLAGS\"; export CFLAGS" >> $1
+  fi
+  if test -n "$CXXFLAGS"; then
+    echo "CXXFLAGS=\"$CXXFLAGS\"; export CXXFLAGS" >> $1
+  fi
+  if test -n "$CPPFLAGS"; then
+    echo "CPPFLAGS=\"$CPPFLAGS\"; export CPPFLAGS" >> $1
+  fi
+  if test -n "$LDFLAGS"; then
+    echo "LDFLAGS=\"$LDFLAGS\"; export LDFLAGS" >> $1
+  fi
+  if test -n "$LTFLAGS"; then
+    echo "LTFLAGS=\"$LTFLAGS\"; export LTFLAGS" >> $1
+  fi
+  if test -n "$LIBS"; then
+    echo "LIBS=\"$LIBS\"; export LIBS" >> $1
+  fi
+  if test -n "$INCLUDES"; then
+    echo "INCLUDES=\"$INCLUDES\"; export INCLUDES" >> $1
+  fi
+  if test -n "$NOTEST_CFLAGS"; then
+    echo "NOTEST_CFLAGS=\"$NOTEST_CFLAGS\"; export NOTEST_CFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_CXXFLAGS"; then
+    echo "NOTEST_CXXFLAGS=\"$NOTEST_CXXFLAGS\"; export NOTEST_CXXFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_CPPFLAGS"; then
+    echo "NOTEST_CPPFLAGS=\"$NOTEST_CPPFLAGS\"; export NOTEST_CPPFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_LDFLAGS"; then
+    echo "NOTEST_LDFLAGS=\"$NOTEST_LDFLAGS\"; export NOTEST_LDFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_LIBS"; then
+    echo "NOTEST_LIBS=\"$NOTEST_LIBS\"; export NOTEST_LIBS" >> $1
+  fi
+
+  # Retrieve command-line arguments.
+  eval "set x $[0] $ac_configure_args"
+  shift
+
+  for arg
+  do
+    TS_EXPAND_VAR(arg, $arg)
+    echo "\"[$]arg\" \\" >> $1
+  done
+  echo '"[$]@"' >> $1
+  chmod +x $1
+])dnl
+
+dnl
+dnl TS_SETIFNULL(variable, value)
+dnl
+dnl  Set variable iff it's currently null
+dnl
+AC_DEFUN([TS_SETIFNULL], [
+  if test -z "$$1"; then
+    test "x$verbose" = "xyes" && echo "  setting $1 to \"$2\""
+    $1="$2"
+  fi
+])dnl
+
+dnl
+dnl TS_SETVAR(variable, value)
+dnl
+dnl  Set variable no matter what
+dnl
+AC_DEFUN([TS_SETVAR], [
+  test "x$verbose" = "xyes" && echo "  forcing $1 to \"$2\""
+  $1="$2"
+])dnl
+
+dnl
+dnl TS_ADDTO(variable, value)
+dnl
+dnl  Add value to variable
+dnl
+AC_DEFUN([TS_ADDTO], [
+  if test "x$$1" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting $1 to \"$2\""
+    $1="$2"
+  else
+    ats_addto_bugger="$2"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $$1; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to $1"
+        $1="$$1 $i"
+      fi
+    done
+  fi
+])dnl
+
+dnl
+dnl TS_REMOVEFROM(variable, value)
+dnl
+dnl Remove a value from a variable
+dnl
+AC_DEFUN([TS_REMOVEFROM], [
+  if test "x$$1" = "x$2"; then
+    test "x$verbose" = "xyes" && echo "  nulling $1"
+    $1=""
+  else
+    ats_new_bugger=""
+    ats_removed=0
+    for i in $$1; do
+      if test "x$i" != "x$2"; then
+        ats_new_bugger="$ats_new_bugger $i"
+      else
+        ats_removed=1
+      fi
+    done
+    if test $ats_removed = "1"; then
+      test "x$verbose" = "xyes" && echo "  removed \"$2\" from $1"
+      $1=$ats_new_bugger
+    fi
+  fi
+]) dnl
+
+dnl
+dnl TS_TRY_COMPILE_NO_WARNING(INCLUDES, FUNCTION-BODY,
+dnl             [ACTIONS-IF-NO-WARNINGS], [ACTIONS-IF-WARNINGS])
+dnl
+dnl Tries a compile test with warnings activated so that the result
+dnl is false if the code doesn't compile cleanly.  For compilers
+dnl where it is not known how to activate a "fail-on-error" mode,
+dnl it is undefined which of the sets of actions will be run.
+dnl
+dnl We actually always try to link the resulting program, since gcc has
+dnl a nasty habit of compiling code that cannot subsequently be linked.
+dnl
+AC_DEFUN([TS_TRY_COMPILE_NO_WARNING],
+[ats_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_prog_gcc" = "yes"; then
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ CFLAGS=$(echo $CFLAGS | sed -e 's/^-w$//' -e 's/^-w //' -e 's/ -w$//' -e 's/ -w / /')
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([$1], [$2])], [$3], [$4])
+ CFLAGS=$ats_save_CFLAGS
+])
+
+
+dnl Iteratively interpolate the contents of the second argument
+dnl until interpolation offers no new result. Then assign the
+dnl final result to $1.
+dnl
+dnl Example:
+dnl
+dnl foo=1
+dnl bar='${foo}/2'
+dnl baz='${bar}/3'
+dnl TS_EXPAND_VAR(fraz, $baz)
+dnl   $fraz is now "1/2/3"
+dnl
+AC_DEFUN([TS_EXPAND_VAR], [
+ats_last=
+ats_cur="$2"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+$1="${ats_cur}"
+])
+
+
+dnl
+dnl Removes the value of $3 from the string in $2, strips of any leading
+dnl slashes, and returns the value in $1.
+dnl
+dnl Example:
+dnl orig_path="${prefix}/bar"
+dnl TS_PATH_RELATIVE(final_path, $orig_path, $prefix)
+dnl    $final_path now contains "bar"
+AC_DEFUN([TS_PATH_RELATIVE], [
+ats_stripped=`echo $2 | sed -e "s#^$3##"`
+# check if the stripping was successful
+if test "x$2" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    $1="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    $1="$2"
+fi
+])
+
+
+dnl TS_SUBST(VARIABLE)
+dnl Makes VARIABLE available in generated files
+dnl (do not use @variable@ in Makefiles, but $(variable))
+AC_DEFUN([TS_SUBST], [
+  TS_VAR_SUBST="$TS_VAR_SUBST $1"
+  AC_SUBST($1)
+])
+
+dnl
+dnl TS_SUBST_LAYOUT_PATH
+dnl Export (via TS_SUBST) the various path-related variables that
+dnl trafficserver will use while generating scripts and
+dnl the default config file.
+AC_DEFUN([TS_SUBST_LAYOUT_PATH], [
+  TS_EXPAND_VAR(exp_$1, [$]$1)
+  TS_PATH_RELATIVE(rel_$1, [$]exp_$1, ${prefix})
+  TS_SUBST(exp_$1)
+  TS_SUBST(rel_$1)
+  TS_SUBST($1)
+])
+
+dnl TS_HELP_STRING(LHS, RHS)
+dnl Autoconf 2.50 can not handle substr correctly.  It does have
+dnl AC_HELP_STRING, so let's try to call it if we can.
+dnl Note: this define must be on one line so that it can be properly returned
+dnl as the help string.  When using this macro with a multi-line RHS, ensure
+dnl that you surround the macro invocation with []s
+AC_DEFUN([TS_HELP_STRING], [ifelse(regexp(AC_ACVERSION, 2\.1), -1, AC_HELP_STRING([$1],[$2]),[  ][$1] substr([                       ],len($1))[$2])])
+
+dnl
+dnl TS_LAYOUT(configlayout, layoutname [, extravars])
+dnl
+AC_DEFUN([TS_LAYOUT], [
+  if test ! -f $srcdir/config.layout; then
+    echo "** Error: Layout file $srcdir/config.layout not found"
+    echo "** Error: Cannot use undefined layout '$LAYOUT'"
+    exit 1
+  fi
+  # Catch layout names including a slash which will otherwise
+  # confuse the heck out of the sed script.
+  case $2 in
+  */*)
+    echo "** Error: $2 is not a valid layout name"
+    exit 1 ;;
+  esac
+  pldconf=./config.pld
+  changequote({,})
+  sed -e "1s/[ 	]*<[lL]ayout[ 	]*$2[ 	]*>[ 	]*//;1t" \
+      -e "1,/[ 	]*<[lL]ayout[ 	]*$2[ 	]*>[ 	]*/d" \
+      -e '/[ 	]*<\/Layout>[ 	]*/,$d' \
+      -e "s/^[ 	]*//g" \
+      -e "s/:[ 	]*/=\'/g" \
+      -e "s/[ 	]*$/'/g" \
+      $1 > $pldconf
+  layout_name=$2
+  if test ! -s $pldconf; then
+    echo "** Error: unable to find layout $layout_name"
+    exit 1
+  fi
+  . $pldconf
+  rm $pldconf
+  for var in prefix exec_prefix bindir sbindir libexecdir mandir infodir \
+             sysconfdir datadir includedir localstatedir runtimedir \
+             logdir libdir installbuilddir libsuffix $3; do
+    eval "val=\"\$$var\""
+    case $val in
+      *+)
+        val=`echo $val | sed -e 's;\+$;;'`
+        eval "$var=\"\$val\""
+        autosuffix=yes
+        ;;
+      *)
+        autosuffix=no
+        ;;
+    esac
+    val=`echo $val | sed -e 's:\(.\)/*$:\1:'`
+    val=`echo $val | sed -e 's:[\$]\([a-z_]*\):${\1}:g'`
+    if test "$autosuffix" = "yes"; then
+      if echo $val | grep -i '/trafficserver$' >/dev/null; then
+        addtarget=no
+      else
+        addtarget=yes
+      fi
+      if test "$addtarget" = "yes"; then
+        val="$val/trafficserver"
+      fi
+    fi
+    eval "$var='$val'"
+  done
+  for var in bindir sbindir libexecdir mandir infodir sysconfdir \
+             datadir localstatedir runtimedir logdir libdir $3; do
+    eval "val=\"\$$var\""
+    case $val in
+      *+)
+        val=`echo $val | sed -e 's;\+$;;'`
+        eval "$var=\"\$val\""
+        autosuffix=yes
+        ;;
+      *)
+        autosuffix=no
+        ;;
+    esac
+    org_val=
+    exp_val="$val"
+    while test "x${exp_val}" != "x${org_val}";
+    do
+      org_val="${exp_val}"
+      exp_val="`eval \"echo ${exp_val}\"`"
+    done
+    if echo $exp_val | grep -i '/trafficserver$' >/dev/null; then
+      addtarget=no
+    else
+      addtarget=yes
+    fi
+    if test "$addsuffix" = "yes" -a "$addtarget" = "yes"; then
+      val="$val/trafficserver"
+    fi
+    var="pkg${var}"
+    eval "$var='$val'"
+  done
+  changequote([,])
+])dnl
+
+dnl
+dnl TS_ENABLE_LAYOUT(default layout name [, extra vars])
+dnl
+AC_DEFUN([TS_ENABLE_LAYOUT], [
+AC_ARG_ENABLE(layout,
+  [TS_HELP_STRING([--enable-layout=LAYOUT],[Enable LAYOUT specified inside config.layout file (defaults to TrafficServer)])],[
+  LAYOUT=$enableval
+])
+
+if test -z "$LAYOUT"; then
+  LAYOUT="$1"
+fi
+TS_LAYOUT($srcdir/config.layout, $LAYOUT, $2)
+
+AC_MSG_CHECKING(for chosen layout)
+AC_MSG_RESULT($layout_name)
+])
+
+
+dnl
+dnl TS_PARSE_ARGUMENTS
+dnl a reimplementation of autoconf's argument parser,
+dnl used here to allow us to co-exist layouts and argument based
+dnl set ups.
+AC_DEFUN([TS_PARSE_ARGUMENTS], [
+ac_prev=
+# Retrieve the command-line arguments.  The eval is needed because
+# the arguments are quoted to preserve accuracy.
+eval "set x $ac_configure_args"
+shift
+for ac_option
+do
+# If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  ac_optarg=`expr "x$ac_option" : 'x[[^=]]*=\(.*\)'`
+
+  case $ac_option in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir="$ac_optarg"
+    pkgbindir="$ac_optarg" ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir="$ac_optarg"
+    pkgdatadir="$ac_optarg" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix="$ac_optarg" ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir="$ac_optarg" ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir="$ac_optarg" ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir="$ac_optarg"
+    pkglibdir="$ac_optarg" ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir="$ac_optarg"
+    pkglibexecdir="$ac_optarg" ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir="$ac_optarg"
+    pkglocalstatedir="$ac_optarg" ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir="$ac_optarg" ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix="$ac_optarg" ;;
+
+  -runtimedir | --runtimedir | --runtimedi | --runtimed | --runtime | --runtim \
+  | --runti | --runt | --run | --ru | --r)
+    ac_prev=runtimedir ;;
+  -runtimedir=* | --runtimedir=* | --runtimedi=* | --runtimed=* | --runtime=* \
+  | --runtim=* | --runti=* | --runt=* | --run=* | --ru=* | --r=*)
+    ac_prev=runtimedir ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir="$ac_optarg"
+    pkgsbindir="$ac_optarg" ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir="$ac_optarg" ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir="$ac_optarg"
+    pkgsysconfdir="$ac_optarg" ;;
+
+  esac
+done
+
+# Be sure to have absolute paths.
+for ac_var in exec_prefix prefix
+do
+  eval ac_val=$`echo $ac_var`
+  case $ac_val in
+    [[\\/$]]* | ?:[[\\/]]* | NONE | '' ) ;;
+    *)  AC_MSG_ERROR([expected an absolute path for --$ac_var: $ac_val]);;
+  esac
+done
+
+])dnl
+
+dnl TS_FLAG_HEADERS(header-file, [action-if-found], [action-if-not-found], [includes])
+dnl
+AC_DEFUN([TS_FLAG_HEADERS], [
+AC_CHECK_HEADERS([$1], [$2], [$3], [$4])
+for tsc_i in $1
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+])
+
+dnl
+dnl Support macro for AC_ARG_ENABLE
+dnl Arguments:
+dnl 1: Variable prefix
+dnl 2: Variable stem
+dnl The prefix is prepended with separating underscore to the stem
+dnl to create the boolean variable to be set. The stem is also used
+dnl to create the name of the AC_ARG_ENABLE variable and therefore
+dnl must be the same as passed to AC_ARG_ENABLE. The prefix should
+dnl be one of "use", "has", or "is", as is appropriate for the
+dnl argument type. The target variable will be set to '1' if the
+dnl enable argument is 'yes', and '0' otherwise.
+dnl
+dnl For instance, if the prefix is "has" and stem is "bob",
+dnl then AC_ARG_ENABLE will set $enable_bob and this macro will set
+dnl $has_bob based on the value in $enable_bob. See the examples
+dnl in configure.ac.
+dnl
+dnl Note: As with AC_ARG_ENABLE, non-alphanumeric characters are
+dnl transformed to underscores.
+dnl
+AC_DEFUN([TS_ARG_ENABLE_VAR],[
+  tsl_prefix="AS_TR_SH($1)"
+  tsl_stem="AS_TR_SH($2)"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  AS_IF([test "x$tsl_enable" = "xyes"],
+     [eval "${tsl_prefix}_${tsl_stem}=1"],
+     [eval "${tsl_prefix}_${tsl_stem}=0"]
+  )
+])
+
+dnl
+dnl TS_SEARCH_LIBRARY(function, search-libs, [action-if-found], [action-if-not-found])
+dnl This macro works like AC_SEARCH_LIBS, except that $LIBS is not modified. If the library
+dnl is found, it is cached in the ts_cv_lib_${function} variable.
+dnl
+AC_DEFUN([TS_SEARCH_LIBRARY], [
+  __saved_LIBS="$LIBS"
+
+  AC_SEARCH_LIBS($1, $2, [
+    dnl action-if-found
+    case $ac_cv_search_$1 in
+    "none required"|"no") ts_cv_search_$1="" ;;
+    *) ts_cv_search_$1=$ac_cv_search_$1 ;;
+    esac
+    m4_default([$3], [true])
+  ], [
+    dnl action-if-not-found
+    m4_default([$4], [true])
+  ])
+
+  LIBS="$__saved_LIBS"
+  unset __saved_LIBS
+])
diff --git a/build/crypto.m4 b/build/crypto.m4
new file mode 100644
index 00000000..f8ad19fb
--- /dev/null
+++ b/build/crypto.m4
@@ -0,0 +1,123 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl crypto.m4 Trafficserver's Crypto autoconf macros
+dnl
+
+dnl
+dnl TS_CHECK_CRYPTO: look for crypto libraries and headers
+dnl
+AC_DEFUN([TS_CHECK_CRYPTO], [
+  AC_SEARCH_LIBS([crypt], [crypt], [AC_SUBST([LIBCRYPT],["-lcrypt"])])
+
+  AX_CHECK_OPENSSL([
+    enable_crypto=yes
+  ], [
+    AC_ERROR(failed to find OpenSSL)
+    enable_crypto=no
+  ])
+
+  if test "x${enable_crypto}" = "xyes"; then
+    TS_ADDTO(LDFLAGS, [$OPENSSL_LDFLAGS])
+    TS_ADDTO(CPPFLAGS, [$OPENSSL_INCLUDES])
+  fi
+
+  dnl add checks for other varieties of ssl here
+])
+dnl
+
+AC_DEFUN([TS_CHECK_CRYPTO_EC_KEYS], [
+  _eckeys_saved_LIBS=$LIBS
+  TS_ADDTO(LIBS, [$OPENSSL_LIBS])
+  AC_CHECK_HEADERS(openssl/ec.h)
+  AC_CHECK_FUNCS(EC_KEY_new_by_curve_name, [enable_tls_eckey=yes], [enable_tls_eckey=no])
+  LIBS=$_eckeys_saved_LIBS
+
+  AC_MSG_CHECKING(whether EC keys are supported)
+  AC_MSG_RESULT([$enable_tls_eckey])
+  TS_ARG_ENABLE_VAR([use], [tls-eckey])
+  AC_SUBST(use_tls_eckey)
+])
+
+AC_DEFUN([TS_CHECK_CRYPTO_NEXTPROTONEG], [
+  enable_tls_npn=yes
+  _npn_saved_LIBS=$LIBS
+  TS_ADDTO(LIBS, [$OPENSSL_LIBS])
+  AC_CHECK_FUNCS(SSL_CTX_set_next_protos_advertised_cb SSL_CTX_set_next_proto_select_cb SSL_select_next_proto SSL_get0_next_proto_negotiated,
+    [], [enable_tls_npn=no]
+  )
+  LIBS=$_npn_saved_LIBS
+
+  AC_MSG_CHECKING(whether to enable Next Protocol Negotiation TLS extension support)
+  AC_MSG_RESULT([$enable_tls_npn])
+  TS_ARG_ENABLE_VAR([use], [tls-npn])
+  AC_SUBST(use_tls_npn)
+])
+
+AC_DEFUN([TS_CHECK_CRYPTO_ALPN], [
+  enable_tls_alpn=yes
+  _alpn_saved_LIBS=$LIBS
+  TS_ADDTO(LIBS, [$OPENSSL_LIBS])
+  AC_CHECK_FUNCS(SSL_CTX_set_alpn_protos SSL_CTX_set_alpn_select_cb SSL_get0_alpn_selected SSL_select_next_proto,
+    [], [enable_tls_alpn=no]
+  )
+  LIBS=$_alpn_saved_LIBS
+
+  AC_MSG_CHECKING(whether to enable Application Layer Protocol Negotiation TLS extension support)
+  AC_MSG_RESULT([$enable_tls_alpn])
+  TS_ARG_ENABLE_VAR([use], [tls-alpn])
+  AC_SUBST(use_tls_alpn)
+])
+
+AC_DEFUN([TS_CHECK_CRYPTO_SNI], [
+  _sni_saved_LIBS=$LIBS
+  enable_tls_sni=yes
+
+  TS_ADDTO(LIBS, [$OPENSSL_LIBS])
+  AC_CHECK_HEADERS(openssl/tls1.h openssl/ssl.h openssl/ts.h)
+  # We are looking for SSL_CTX_set_tlsext_servername_callback, but it's a
+  # macro, so AC_CHECK_FUNCS is not going to do the business.
+  AC_MSG_CHECKING([for SSL_CTX_set_tlsext_servername_callback])
+  AC_COMPILE_IFELSE(
+  [
+    AC_LANG_PROGRAM([[
+#if HAVE_OPENSSL_SSL_H
+#include <openssl/ssl.h>
+#endif
+#if HAVE_OPENSSL_TLS1_H
+#include <openssl/tls1.h>
+#endif
+      ]],
+      [[SSL_CTX_set_tlsext_servername_callback(NULL, NULL);]])
+  ],
+  [
+    AC_MSG_RESULT([yes])
+  ],
+  [
+    AC_MSG_RESULT([no])
+    enable_tls_sni=no
+  ])
+
+  AC_CHECK_FUNCS(SSL_get_servername, [], [enable_tls_sni=no])
+
+  LIBS=$_sni_saved_LIBS
+
+  AC_MSG_CHECKING(whether to enable ServerNameIndication TLS extension support)
+  AC_MSG_RESULT([$enable_tls_sni])
+  TS_ARG_ENABLE_VAR([use], [tls-sni])
+  AC_SUBST(use_tls_sni)
+])
diff --git a/build/jemalloc.m4 b/build/jemalloc.m4
new file mode 100644
index 00000000..55479b5c
--- /dev/null
+++ b/build/jemalloc.m4
@@ -0,0 +1,78 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl jemalloc.m4: Trafficserver's jemalloc autoconf macros
+dnl
+
+AC_DEFUN([TS_CHECK_JEMALLOC], [
+enable_jemalloc=no
+AC_ARG_WITH([jemalloc], [AC_HELP_STRING([--with-jemalloc=DIR], [use a specific jemalloc library])],
+[
+  if test "$withval" != "no"; then
+    if test "x${enable_tcmalloc}" = "xyes"; then
+      AC_MSG_ERROR([Cannot compile with both jemalloc and tcmalloc])
+    fi
+    enable_jemalloc=yes
+    jemalloc_base_dir="$withval"
+    case "$withval" in
+      yes)
+        jemalloc_base_dir="/usr"
+        AC_MSG_CHECKING(checking for jemalloc includes standard directories)
+	;;
+      *":"*)
+        jemalloc_include="`echo $withval |sed -e 's/:.*$//'`"
+        jemalloc_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        AC_MSG_CHECKING(checking for jemalloc includes in $jemalloc_include libs in $jemalloc_ldflags)
+        ;;
+      *)
+        jemalloc_include="$withval/include"
+        jemalloc_ldflags="$withval/lib"
+        AC_MSG_CHECKING(checking for jemalloc includes in $withval)
+        ;;
+    esac
+  fi
+])
+
+jemalloch=0
+if test "$enable_jemalloc" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  jemalloc_have_headers=0
+  jemalloc_have_libs=0
+  if test "$jemalloc_base_dir" != "/usr"; then
+    TS_ADDTO(CPPFLAGS, [-I${jemalloc_include}])
+    TS_ADDTO(LDFLAGS, [-L${jemalloc_ldflags}])
+    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-R${jemalloc_ldflags}])
+  fi
+  # On Darwin, jemalloc symbols are prefixed with je_. Search for that first, then fall back
+  # to unadorned symbols.
+  AC_SEARCH_LIBS([je_malloc_stats_print], [jemalloc], [jemalloc_have_libs=1],
+    [AC_SEARCH_LIBS([malloc_stats_print], [jemalloc], [jemalloc_have_libs=1])]
+  )
+  if test "$jemalloc_have_libs" != "0"; then
+    TS_FLAG_HEADERS(jemalloc/jemalloc.h, [jemalloc_have_headers=1])
+  fi
+  if test "$jemalloc_have_headers" != "0"; then
+    jemalloch=1
+    TS_ADDTO(LIBS, [-ljemalloc])
+  else
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+AC_SUBST(jemalloch)
+])
diff --git a/build/libtool.m4 b/build/libtool.m4
new file mode 100644
index 00000000..f12cfdf0
--- /dev/null
+++ b/build/libtool.m4
@@ -0,0 +1,7992 @@
+# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
+#
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+#                 Foundation, Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+m4_define([_LT_COPYING], [dnl
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+#                 Foundation, Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+#   This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
+# obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+])
+
+# serial 57 LT_INIT
+
+
+# LT_PREREQ(VERSION)
+# ------------------
+# Complain and exit if this libtool version is less that VERSION.
+m4_defun([LT_PREREQ],
+[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
+       [m4_default([$3],
+		   [m4_fatal([Libtool version $1 or higher is required],
+		             63)])],
+       [$2])])
+
+
+# _LT_CHECK_BUILDDIR
+# ------------------
+# Complain if the absolute build directory name contains unusual characters
+m4_defun([_LT_CHECK_BUILDDIR],
+[case `pwd` in
+  *\ * | *\	*)
+    AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
+esac
+])
+
+
+# LT_INIT([OPTIONS])
+# ------------------
+AC_DEFUN([LT_INIT],
+[AC_PREREQ([2.58])dnl We use AC_INCLUDES_DEFAULT
+AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+AC_BEFORE([$0], [LT_LANG])dnl
+AC_BEFORE([$0], [LT_OUTPUT])dnl
+AC_BEFORE([$0], [LTDL_INIT])dnl
+m4_require([_LT_CHECK_BUILDDIR])dnl
+
+dnl Autoconf doesn't catch unexpanded LT_ macros by default:
+m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
+m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
+dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
+dnl unless we require an AC_DEFUNed macro:
+AC_REQUIRE([LTOPTIONS_VERSION])dnl
+AC_REQUIRE([LTSUGAR_VERSION])dnl
+AC_REQUIRE([LTVERSION_VERSION])dnl
+AC_REQUIRE([LTOBSOLETE_VERSION])dnl
+m4_require([_LT_PROG_LTMAIN])dnl
+
+_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
+
+dnl Parse OPTIONS
+_LT_SET_OPTIONS([$0], [$1])
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ltmain"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+_LT_SETUP
+
+# Only expand once:
+m4_define([LT_INIT])
+])# LT_INIT
+
+# Old names:
+AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
+AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
+dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
+
+
+# _LT_CC_BASENAME(CC)
+# -------------------
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+m4_defun([_LT_CC_BASENAME],
+[for cc_temp in $1""; do
+  case $cc_temp in
+    compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
+    distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+])
+
+
+# _LT_FILEUTILS_DEFAULTS
+# ----------------------
+# It is okay to use these file commands and assume they have been set
+# sensibly after `m4_require([_LT_FILEUTILS_DEFAULTS])'.
+m4_defun([_LT_FILEUTILS_DEFAULTS],
+[: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+])# _LT_FILEUTILS_DEFAULTS
+
+
+# _LT_SETUP
+# ---------
+m4_defun([_LT_SETUP],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+
+_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
+dnl
+_LT_DECL([], [host_alias], [0], [The host system])dnl
+_LT_DECL([], [host], [0])dnl
+_LT_DECL([], [host_os], [0])dnl
+dnl
+_LT_DECL([], [build_alias], [0], [The build system])dnl
+_LT_DECL([], [build], [0])dnl
+_LT_DECL([], [build_os], [0])dnl
+dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+dnl
+AC_REQUIRE([AC_PROG_LN_S])dnl
+test -z "$LN_S" && LN_S="ln -s"
+_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
+dnl
+AC_REQUIRE([LT_CMD_MAX_LEN])dnl
+_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
+_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
+dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
+m4_require([_LT_CMD_RELOAD])dnl
+m4_require([_LT_CHECK_MAGIC_METHOD])dnl
+m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
+m4_require([_LT_CMD_OLD_ARCHIVE])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_WITH_SYSROOT])dnl
+
+_LT_CONFIG_LIBTOOL_INIT([
+# See if we are running on zsh, and set the options which allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+])
+if test -n "${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+_LT_CHECK_OBJDIR
+
+m4_require([_LT_TAG_COMPILER])dnl
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+_LT_CC_BASENAME([$compiler])
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    _LT_PATH_MAGIC
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+LT_SUPPORTED_TAG([CC])
+_LT_LANG_C_CONFIG
+_LT_LANG_DEFAULT_CONFIG
+_LT_CONFIG_COMMANDS
+])# _LT_SETUP
+
+
+# _LT_PREPARE_SED_QUOTE_VARS
+# --------------------------
+# Define a few sed substitution that help us do robust quoting.
+m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
+[# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([["`\\]]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+])
+
+# _LT_PROG_LTMAIN
+# ---------------
+# Note that this code is called both from `configure', and `config.status'
+# now that we use AC_CONFIG_COMMANDS to generate libtool.  Notably,
+# `config.status' has no value for ac_aux_dir unless we are using Automake,
+# so we pass a copy along to make sure it has a sensible value anyway.
+m4_defun([_LT_PROG_LTMAIN],
+[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
+_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
+ltmain="$ac_aux_dir/ltmain.sh"
+])# _LT_PROG_LTMAIN
+
+
+## ------------------------------------- ##
+## Accumulate code for creating libtool. ##
+## ------------------------------------- ##
+
+# So that we can recreate a full libtool script including additional
+# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
+# in macros and then make a single call at the end using the `libtool'
+# label.
+
+
+# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
+# ----------------------------------------
+# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL_INIT],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_INIT],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_INIT])
+
+
+# _LT_CONFIG_LIBTOOL([COMMANDS])
+# ------------------------------
+# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
+
+
+# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
+# -----------------------------------------------------
+m4_defun([_LT_CONFIG_SAVE_COMMANDS],
+[_LT_CONFIG_LIBTOOL([$1])
+_LT_CONFIG_LIBTOOL_INIT([$2])
+])
+
+
+# _LT_FORMAT_COMMENT([COMMENT])
+# -----------------------------
+# Add leading comment marks to the start of each line, and a trailing
+# full-stop to the whole comment if one is not present already.
+m4_define([_LT_FORMAT_COMMENT],
+[m4_ifval([$1], [
+m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
+              [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
+)])
+
+
+
+## ------------------------ ##
+## FIXME: Eliminate VARNAME ##
+## ------------------------ ##
+
+
+# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
+# -------------------------------------------------------------------
+# CONFIGNAME is the name given to the value in the libtool script.
+# VARNAME is the (base) name used in the configure script.
+# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
+# VARNAME.  Any other value will be used directly.
+m4_define([_LT_DECL],
+[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
+    [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
+	[m4_ifval([$1], [$1], [$2])])
+    lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
+    m4_ifval([$4],
+	[lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
+    lt_dict_add_subkey([lt_decl_dict], [$2],
+	[tagged?], [m4_ifval([$5], [yes], [no])])])
+])
+
+
+# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
+# --------------------------------------------------------
+m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
+
+
+# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_tag_varnames],
+[_lt_decl_filter([tagged?], [yes], $@)])
+
+
+# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
+# ---------------------------------------------------------
+m4_define([_lt_decl_filter],
+[m4_case([$#],
+  [0], [m4_fatal([$0: too few arguments: $#])],
+  [1], [m4_fatal([$0: too few arguments: $#: $1])],
+  [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
+  [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
+  [lt_dict_filter([lt_decl_dict], $@)])[]dnl
+])
+
+
+# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
+# --------------------------------------------------
+m4_define([lt_decl_quote_varnames],
+[_lt_decl_filter([value], [1], $@)])
+
+
+# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_dquote_varnames],
+[_lt_decl_filter([value], [2], $@)])
+
+
+# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_varnames_tagged],
+[m4_assert([$# <= 2])dnl
+_$0(m4_quote(m4_default([$1], [[, ]])),
+    m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
+    m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
+m4_define([_lt_decl_varnames_tagged],
+[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
+
+
+# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_all_varnames],
+[_$0(m4_quote(m4_default([$1], [[, ]])),
+     m4_if([$2], [],
+	   m4_quote(lt_decl_varnames),
+	m4_quote(m4_shift($@))))[]dnl
+])
+m4_define([_lt_decl_all_varnames],
+[lt_join($@, lt_decl_varnames_tagged([$1],
+			lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
+])
+
+
+# _LT_CONFIG_STATUS_DECLARE([VARNAME])
+# ------------------------------------
+# Quote a variable value, and forward it to `config.status' so that its
+# declaration there will have the same value as in `configure'.  VARNAME
+# must have a single quote delimited value for this to work.
+m4_define([_LT_CONFIG_STATUS_DECLARE],
+[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
+
+
+# _LT_CONFIG_STATUS_DECLARATIONS
+# ------------------------------
+# We delimit libtool config variables with single quotes, so when
+# we write them to config.status, we have to be sure to quote all
+# embedded single quotes properly.  In configure, this macro expands
+# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
+#
+#    <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`'
+m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
+    [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAGS
+# ----------------
+# Output comment and list of tags supported by the script
+m4_defun([_LT_LIBTOOL_TAGS],
+[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
+available_tags="_LT_TAGS"dnl
+])
+
+
+# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
+# -----------------------------------
+# Extract the dictionary values for VARNAME (optionally with TAG) and
+# expand to a commented shell variable setting:
+#
+#    # Some comment about what VAR is for.
+#    visible_name=$lt_internal_name
+m4_define([_LT_LIBTOOL_DECLARE],
+[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
+					   [description])))[]dnl
+m4_pushdef([_libtool_name],
+    m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
+m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
+    [0], [_libtool_name=[$]$1],
+    [1], [_libtool_name=$lt_[]$1],
+    [2], [_libtool_name=$lt_[]$1],
+    [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
+m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
+])
+
+
+# _LT_LIBTOOL_CONFIG_VARS
+# -----------------------
+# Produce commented declarations of non-tagged libtool config variables
+# suitable for insertion in the LIBTOOL CONFIG section of the `libtool'
+# script.  Tagged libtool config variables (even for the LIBTOOL CONFIG
+# section) are produced by _LT_LIBTOOL_TAG_VARS.
+m4_defun([_LT_LIBTOOL_CONFIG_VARS],
+[m4_foreach([_lt_var],
+    m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAG_VARS(TAG)
+# -------------------------
+m4_define([_LT_LIBTOOL_TAG_VARS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
+
+
+# _LT_TAGVAR(VARNAME, [TAGNAME])
+# ------------------------------
+m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
+
+
+# _LT_CONFIG_COMMANDS
+# -------------------
+# Send accumulated output to $CONFIG_STATUS.  Thanks to the lists of
+# variables for single and double quote escaping we saved from calls
+# to _LT_DECL, we can put quote escaped variables declarations
+# into `config.status', and then the shell code to quote escape them in
+# for loops in `config.status'.  Finally, any additional code accumulated
+# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
+m4_defun([_LT_CONFIG_COMMANDS],
+[AC_PROVIDE_IFELSE([LT_OUTPUT],
+	dnl If the libtool generation code has been placed in $CONFIG_LT,
+	dnl instead of duplicating it all over again into config.status,
+	dnl then we will have config.status run $CONFIG_LT later, so it
+	dnl needs to know what name is stored there:
+        [AC_CONFIG_COMMANDS([libtool],
+            [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
+    dnl If the libtool generation code is destined for config.status,
+    dnl expand the accumulated commands and init code now:
+    [AC_CONFIG_COMMANDS([libtool],
+        [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
+])#_LT_CONFIG_COMMANDS
+
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
+[
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+_LT_CONFIG_STATUS_DECLARATIONS
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$[]1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_quote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_dquote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+_LT_OUTPUT_LIBTOOL_INIT
+])
+
+# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
+# ------------------------------------
+# Generate a child script FILE with all initialization necessary to
+# reuse the environment learned by the parent script, and make the
+# file executable.  If COMMENT is supplied, it is inserted after the
+# `#!' sequence but before initialization text begins.  After this
+# macro, additional text can be appended to FILE to form the body of
+# the child script.  The macro ends with non-zero status if the
+# file could not be fully written (such as if the disk is full).
+m4_ifdef([AS_INIT_GENERATED],
+[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
+[m4_defun([_LT_GENERATED_FILE_INIT],
+[m4_require([AS_PREPARE])]dnl
+[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
+[lt_write_fail=0
+cat >$1 <<_ASEOF || lt_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+$2
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$1 <<\_ASEOF || lt_write_fail=1
+AS_SHELL_SANITIZE
+_AS_PREPARE
+exec AS_MESSAGE_FD>&1
+_ASEOF
+test $lt_write_fail = 0 && chmod +x $1[]dnl
+m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
+
+# LT_OUTPUT
+# ---------
+# This macro allows early generation of the libtool script (before
+# AC_OUTPUT is called), incase it is used in configure for compilation
+# tests.
+AC_DEFUN([LT_OUTPUT],
+[: ${CONFIG_LT=./config.lt}
+AC_MSG_NOTICE([creating $CONFIG_LT])
+_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
+[# Run this file to recreate a libtool stub with the current configuration.])
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+lt_cl_silent=false
+exec AS_MESSAGE_LOG_FD>>config.log
+{
+  echo
+  AS_BOX([Running $as_me.])
+} >&AS_MESSAGE_LOG_FD
+
+lt_cl_help="\
+\`$as_me' creates a local libtool stub from the current configuration,
+for use in further configure time tests before the real libtool is
+generated.
+
+Usage: $[0] [[OPTIONS]]
+
+  -h, --help      print this help, then exit
+  -V, --version   print version number, then exit
+  -q, --quiet     do not print progress messages
+  -d, --debug     don't remove temporary files
+
+Report bugs to <bug-libtool@gnu.org>."
+
+lt_cl_version="\
+m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
+m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
+configured by $[0], generated by m4_PACKAGE_STRING.
+
+Copyright (C) 2011 Free Software Foundation, Inc.
+This config.lt script is free software; the Free Software Foundation
+gives unlimited permision to copy, distribute and modify it."
+
+while test $[#] != 0
+do
+  case $[1] in
+    --version | --v* | -V )
+      echo "$lt_cl_version"; exit 0 ;;
+    --help | --h* | -h )
+      echo "$lt_cl_help"; exit 0 ;;
+    --debug | --d* | -d )
+      debug=: ;;
+    --quiet | --q* | --silent | --s* | -q )
+      lt_cl_silent=: ;;
+
+    -*) AC_MSG_ERROR([unrecognized option: $[1]
+Try \`$[0] --help' for more information.]) ;;
+
+    *) AC_MSG_ERROR([unrecognized argument: $[1]
+Try \`$[0] --help' for more information.]) ;;
+  esac
+  shift
+done
+
+if $lt_cl_silent; then
+  exec AS_MESSAGE_FD>/dev/null
+fi
+_LTEOF
+
+cat >>"$CONFIG_LT" <<_LTEOF
+_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
+_LTEOF
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+AC_MSG_NOTICE([creating $ofile])
+_LT_OUTPUT_LIBTOOL_COMMANDS
+AS_EXIT(0)
+_LTEOF
+chmod +x "$CONFIG_LT"
+
+# configure is writing to config.log, but config.lt does its own redirection,
+# appending to config.log, which fails on DOS, as config.log is still kept
+# open by configure.  Here we exec the FD to /dev/null, effectively closing
+# config.log, so it can be properly (re)opened and appended to by config.lt.
+lt_cl_success=:
+test "$silent" = yes &&
+  lt_config_lt_args="$lt_config_lt_args --quiet"
+exec AS_MESSAGE_LOG_FD>/dev/null
+$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
+exec AS_MESSAGE_LOG_FD>>config.log
+$lt_cl_success || AS_EXIT(1)
+])# LT_OUTPUT
+
+
+# _LT_CONFIG(TAG)
+# ---------------
+# If TAG is the built-in tag, create an initial libtool script with a
+# default configuration from the untagged config vars.  Otherwise add code
+# to config.status for appending the configuration named by TAG from the
+# matching tagged config vars.
+m4_defun([_LT_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_CONFIG_SAVE_COMMANDS([
+  m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
+  m4_if(_LT_TAG, [C], [
+    # See if we are running on zsh, and set the options which allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}" ; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile="${ofile}T"
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+
+# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+_LT_COPYING
+_LT_LIBTOOL_TAGS
+
+# ### BEGIN LIBTOOL CONFIG
+_LT_LIBTOOL_CONFIG_VARS
+_LT_LIBTOOL_TAG_VARS
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+  _LT_PROG_LTMAIN
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+  _LT_PROG_REPLACE_SHELLFNS
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+],
+[cat <<_LT_EOF >> "$ofile"
+
+dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
+dnl in a comment (ie after a #).
+# ### BEGIN LIBTOOL TAG CONFIG: $1
+_LT_LIBTOOL_TAG_VARS(_LT_TAG)
+# ### END LIBTOOL TAG CONFIG: $1
+_LT_EOF
+])dnl /m4_if
+],
+[m4_if([$1], [], [
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    TIMESTAMP='$TIMESTAMP'
+    RM='$RM'
+    ofile='$ofile'], [])
+])dnl /_LT_CONFIG_SAVE_COMMANDS
+])# _LT_CONFIG
+
+
+# LT_SUPPORTED_TAG(TAG)
+# ---------------------
+# Trace this macro to discover what tags are supported by the libtool
+# --tag option, using:
+#    autoconf --trace 'LT_SUPPORTED_TAG:$1'
+AC_DEFUN([LT_SUPPORTED_TAG], [])
+
+
+# C support is built-in for now
+m4_define([_LT_LANG_C_enabled], [])
+m4_define([_LT_TAGS], [])
+
+
+# LT_LANG(LANG)
+# -------------
+# Enable libtool support for the given language if not already enabled.
+AC_DEFUN([LT_LANG],
+[AC_BEFORE([$0], [LT_OUTPUT])dnl
+m4_case([$1],
+  [C],			[_LT_LANG(C)],
+  [C++],		[_LT_LANG(CXX)],
+  [Go],			[_LT_LANG(GO)],
+  [Java],		[_LT_LANG(GCJ)],
+  [Fortran 77],		[_LT_LANG(F77)],
+  [Fortran],		[_LT_LANG(FC)],
+  [Windows Resource],	[_LT_LANG(RC)],
+  [m4_ifdef([_LT_LANG_]$1[_CONFIG],
+    [_LT_LANG($1)],
+    [m4_fatal([$0: unsupported language: "$1"])])])dnl
+])# LT_LANG
+
+
+# _LT_LANG(LANGNAME)
+# ------------------
+m4_defun([_LT_LANG],
+[m4_ifdef([_LT_LANG_]$1[_enabled], [],
+  [LT_SUPPORTED_TAG([$1])dnl
+  m4_append([_LT_TAGS], [$1 ])dnl
+  m4_define([_LT_LANG_]$1[_enabled], [])dnl
+  _LT_LANG_$1_CONFIG($1)])dnl
+])# _LT_LANG
+
+
+m4_ifndef([AC_PROG_GO], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_GO.  When it is available in    #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+############################################################
+m4_defun([AC_PROG_GO],
+[AC_LANG_PUSH(Go)dnl
+AC_ARG_VAR([GOC],     [Go compiler command])dnl
+AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
+_AC_ARG_VAR_LDFLAGS()dnl
+AC_CHECK_TOOL(GOC, gccgo)
+if test -z "$GOC"; then
+  if test -n "$ac_tool_prefix"; then
+    AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
+  fi
+fi
+if test -z "$GOC"; then
+  AC_CHECK_PROG(GOC, gccgo, gccgo, false)
+fi
+])#m4_defun
+])#m4_ifndef
+
+
+# _LT_LANG_DEFAULT_CONFIG
+# -----------------------
+m4_defun([_LT_LANG_DEFAULT_CONFIG],
+[AC_PROVIDE_IFELSE([AC_PROG_CXX],
+  [LT_LANG(CXX)],
+  [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_F77],
+  [LT_LANG(F77)],
+  [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_FC],
+  [LT_LANG(FC)],
+  [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
+
+dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
+dnl pulling things in needlessly.
+AC_PROVIDE_IFELSE([AC_PROG_GCJ],
+  [LT_LANG(GCJ)],
+  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
+    [LT_LANG(GCJ)],
+    [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
+      [LT_LANG(GCJ)],
+      [m4_ifdef([AC_PROG_GCJ],
+	[m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([A][M_PROG_GCJ],
+	[m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([LT_PROG_GCJ],
+	[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
+
+AC_PROVIDE_IFELSE([AC_PROG_GO],
+  [LT_LANG(GO)],
+  [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
+
+AC_PROVIDE_IFELSE([LT_PROG_RC],
+  [LT_LANG(RC)],
+  [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
+])# _LT_LANG_DEFAULT_CONFIG
+
+# Obsolete macros:
+AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
+AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
+AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
+AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
+AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
+dnl AC_DEFUN([AC_LIBTOOL_F77], [])
+dnl AC_DEFUN([AC_LIBTOOL_FC], [])
+dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
+dnl AC_DEFUN([AC_LIBTOOL_RC], [])
+
+
+# _LT_TAG_COMPILER
+# ----------------
+m4_defun([_LT_TAG_COMPILER],
+[AC_REQUIRE([AC_PROG_CC])dnl
+
+_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
+_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
+_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
+_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+])# _LT_TAG_COMPILER
+
+
+# _LT_COMPILER_BOILERPLATE
+# ------------------------
+# Check for compiler boilerplate output or warnings with
+# the simple compiler test code.
+m4_defun([_LT_COMPILER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_COMPILER_BOILERPLATE
+
+
+# _LT_LINKER_BOILERPLATE
+# ----------------------
+# Check for linker boilerplate output or warnings with
+# the simple link test code.
+m4_defun([_LT_LINKER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+])# _LT_LINKER_BOILERPLATE
+
+# _LT_REQUIRED_DARWIN_CHECKS
+# -------------------------
+m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
+  case $host_os in
+    rhapsody* | darwin*)
+    AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
+    AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
+    AC_CHECK_TOOL([LIPO], [lipo], [:])
+    AC_CHECK_TOOL([OTOOL], [otool], [:])
+    AC_CHECK_TOOL([OTOOL64], [otool64], [:])
+    _LT_DECL([], [DSYMUTIL], [1],
+      [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
+    _LT_DECL([], [NMEDIT], [1],
+      [Tool to change global to local symbols on Mac OS X])
+    _LT_DECL([], [LIPO], [1],
+      [Tool to manipulate fat objects and archives on Mac OS X])
+    _LT_DECL([], [OTOOL], [1],
+      [ldd/readelf like tool for Mach-O binaries on Mac OS X])
+    _LT_DECL([], [OTOOL64], [1],
+      [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
+
+    AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
+      [lt_cv_apple_cc_single_mod=no
+      if test -z "${LT_MULTI_MODULE}"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test $_lt_result -eq 0; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi])
+
+    AC_CACHE_CHECK([for -exported_symbols_list linker flag],
+      [lt_cv_ld_exported_symbols_list],
+      [lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+	[lt_cv_ld_exported_symbols_list=yes],
+	[lt_cv_ld_exported_symbols_list=no])
+	LDFLAGS="$save_LDFLAGS"
+    ])
+
+    AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
+      [lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
+      echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
+      $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
+      echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
+      $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+    ])
+    case $host_os in
+    rhapsody* | darwin1.[[012]])
+      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	10.[[012]]*)
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	10.*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
+      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    fi
+    if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+])
+
+
+# _LT_DARWIN_LINKER_FEATURES([TAG])
+# ---------------------------------
+# Checks for linker and compiler features on darwin
+m4_defun([_LT_DARWIN_LINKER_FEATURES],
+[
+  m4_require([_LT_REQUIRED_DARWIN_CHECKS])
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_automatic, $1)=yes
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+    m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
+                  [FC],  [_LT_TAGVAR(compiler_needs_object, $1)=yes])
+  else
+    _LT_TAGVAR(whole_archive_flag_spec, $1)=''
+  fi
+  _LT_TAGVAR(link_all_deplibs, $1)=yes
+  _LT_TAGVAR(allow_undefined_flag, $1)="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+    m4_if([$1], [CXX],
+[   if test "$lt_cv_apple_cc_single_mod" != "yes"; then
+      _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
+      _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
+    fi
+],[])
+  else
+  _LT_TAGVAR(ld_shlibs, $1)=no
+  fi
+])
+
+# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
+# ----------------------------------
+# Links a minimal program and checks the executable
+# for the system default hardcoded library path. In most cases,
+# this is /usr/lib:/lib, but when the MPI compilers are used
+# the location of the communication and MPI libs are included too.
+# If we don't find anything, use the default library path according
+# to the aix ld manual.
+# Store the results from the different compilers for each TAGNAME.
+# Allow to override them for all tags through lt_cv_aix_libpath.
+m4_defun([_LT_SYS_MODULE_PATH_AIX],
+[m4_require([_LT_DECL_SED])dnl
+if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
+  [AC_LINK_IFELSE([AC_LANG_PROGRAM],[
+  lt_aix_libpath_sed='[
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }]'
+  _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi],[])
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])="/usr/lib:/lib"
+  fi
+  ])
+  aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
+fi
+])# _LT_SYS_MODULE_PATH_AIX
+
+
+# _LT_SHELL_INIT(ARG)
+# -------------------
+m4_define([_LT_SHELL_INIT],
+[m4_divert_text([M4SH-INIT], [$1
+])])# _LT_SHELL_INIT
+
+
+
+# _LT_PROG_ECHO_BACKSLASH
+# -----------------------
+# Find how we can fake an echo command that does not interpret backslash.
+# In particular, with Autoconf 2.60 or later we add some code to the start
+# of the generated configure script which will find a shell with a builtin
+# printf (which we can use as an echo command).
+m4_defun([_LT_PROG_ECHO_BACKSLASH],
+[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+AC_MSG_CHECKING([how to print strings])
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$[]1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*" 
+}
+
+case "$ECHO" in
+  printf*) AC_MSG_RESULT([printf]) ;;
+  print*) AC_MSG_RESULT([print -r]) ;;
+  *) AC_MSG_RESULT([cat]) ;;
+esac
+
+m4_ifdef([_AS_DETECT_SUGGESTED],
+[_AS_DETECT_SUGGESTED([
+  test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test "X`printf %s $ECHO`" = "X$ECHO" \
+      || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
+
+_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
+_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
+])# _LT_PROG_ECHO_BACKSLASH
+
+
+# _LT_WITH_SYSROOT
+# ----------------
+AC_DEFUN([_LT_WITH_SYSROOT],
+[AC_MSG_CHECKING([for sysroot])
+AC_ARG_WITH([sysroot],
+[  --with-sysroot[=DIR] Search for dependent libraries within DIR
+                        (or the compiler's sysroot if not specified).],
+[], [with_sysroot=no])
+
+dnl lt_sysroot will always be passed unquoted.  We quote it here
+dnl in case the user passed a directory name.
+lt_sysroot=
+case ${with_sysroot} in #(
+ yes)
+   if test "$GCC" = yes; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   AC_MSG_RESULT([${with_sysroot}])
+   AC_MSG_ERROR([The sysroot must be an absolute path.])
+   ;;
+esac
+
+ AC_MSG_RESULT([${lt_sysroot:-no}])
+_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
+[dependent libraries, and in which our libraries should be installed.])])
+
+# _LT_ENABLE_LOCK
+# ---------------
+m4_defun([_LT_ENABLE_LOCK],
+[AC_ARG_ENABLE([libtool-lock],
+  [AS_HELP_STRING([--disable-libtool-lock],
+    [avoid locking (might break parallel builds)])])
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE="32"
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE="64"
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    if test "$lt_cv_prog_gnu_ld" = yes; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_i386"
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+    [AC_LANG_PUSH(C)
+     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+     AC_LANG_POP])
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+*-*solaris*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD="${LD-ld}_sol2"
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks="$enable_libtool_lock"
+])# _LT_ENABLE_LOCK
+
+
+# _LT_PROG_AR
+# -----------
+m4_defun([_LT_PROG_AR],
+[AC_CHECK_TOOLS(AR, [ar], false)
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+_LT_DECL([], [AR], [1], [The archiver])
+_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
+
+AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
+  [lt_cv_ar_at_file=no
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
+     [echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
+      AC_TRY_EVAL([lt_ar_try])
+      if test "$ac_status" -eq 0; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	AC_TRY_EVAL([lt_ar_try])
+	if test "$ac_status" -ne 0; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+     ])
+  ])
+
+if test "x$lt_cv_ar_at_file" = xno; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+_LT_DECL([], [archiver_list_spec], [1],
+  [How to feed a file listing to the archiver])
+])# _LT_PROG_AR
+
+
+# _LT_CMD_OLD_ARCHIVE
+# -------------------
+m4_defun([_LT_CMD_OLD_ARCHIVE],
+[_LT_PROG_AR
+
+AC_CHECK_TOOL(STRIP, strip, :)
+test -z "$STRIP" && STRIP=:
+_LT_DECL([], [STRIP], [1], [A symbol stripping program])
+
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+test -z "$RANLIB" && RANLIB=:
+_LT_DECL([], [RANLIB], [1],
+    [Commands used to install an old-style archive])
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+_LT_DECL([], [old_postinstall_cmds], [2])
+_LT_DECL([], [old_postuninstall_cmds], [2])
+_LT_TAGDECL([], [old_archive_cmds], [2],
+    [Commands used to build an old-style archive])
+_LT_DECL([], [lock_old_archive_extraction], [0],
+    [Whether to use a lock for old archive extraction])
+])# _LT_CMD_OLD_ARCHIVE
+
+
+# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#		[OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([_LT_COMPILER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$3"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       $2=yes
+     fi
+   fi
+   $RM conftest*
+])
+
+if test x"[$]$2" = xyes; then
+    m4_if([$5], , :, [$5])
+else
+    m4_if([$6], , :, [$6])
+fi
+])# _LT_COMPILER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
+
+
+# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#                  [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------
+# Check whether the given linker option works
+AC_DEFUN([_LT_LINKER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $3"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&AS_MESSAGE_LOG_FD
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         $2=yes
+       fi
+     else
+       $2=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+])
+
+if test x"[$]$2" = xyes; then
+    m4_if([$4], , :, [$4])
+else
+    m4_if([$5], , :, [$5])
+fi
+])# _LT_LINKER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
+
+
+# LT_CMD_MAX_LEN
+#---------------
+AC_DEFUN([LT_CMD_MAX_LEN],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+  i=0
+  teststring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[	 ]]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8 ; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test $i != 17 # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+])
+if test -n $lt_cv_sys_max_cmd_len ; then
+  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+  AC_MSG_RESULT(none)
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+_LT_DECL([], [max_cmd_len], [0],
+    [What is the maximum length of a command?])
+])# LT_CMD_MAX_LEN
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
+
+
+# _LT_HEADER_DLFCN
+# ----------------
+m4_defun([_LT_HEADER_DLFCN],
+[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
+])# _LT_HEADER_DLFCN
+
+
+# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
+#                      ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
+# ----------------------------------------------------------------
+m4_defun([_LT_TRY_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test "$cross_compiling" = yes; then :
+  [$4]
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+[#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}]
+_LT_EOF
+  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) $1 ;;
+      x$lt_dlneed_uscore) $2 ;;
+      x$lt_dlunknown|x*) $3 ;;
+    esac
+  else :
+    # compilation failed
+    $3
+  fi
+fi
+rm -fr conftest*
+])# _LT_TRY_DLOPEN_SELF
+
+
+# LT_SYS_DLOPEN_SELF
+# ------------------
+AC_DEFUN([LT_SYS_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ])
+    ;;
+
+  *)
+    AC_CHECK_FUNC([shl_load],
+	  [lt_cv_dlopen="shl_load"],
+      [AC_CHECK_LIB([dld], [shl_load],
+	    [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"],
+	[AC_CHECK_FUNC([dlopen],
+	      [lt_cv_dlopen="dlopen"],
+	  [AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],
+	    [AC_CHECK_LIB([svld], [dlopen],
+		  [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],
+	      [AC_CHECK_LIB([dld], [dld_link],
+		    [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"])
+	      ])
+	    ])
+	  ])
+	])
+      ])
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    AC_CACHE_CHECK([whether a program can dlopen itself],
+	  lt_cv_dlopen_self, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
+	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
+    ])
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
+	  lt_cv_dlopen_self_static, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
+	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
+      ])
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+_LT_DECL([dlopen_support], [enable_dlopen], [0],
+	 [Whether dlopen is supported])
+_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
+	 [Whether dlopen of programs is supported])
+_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
+	 [Whether dlopen of statically linked programs is supported])
+])# LT_SYS_DLOPEN_SELF
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
+
+
+# _LT_COMPILER_C_O([TAGNAME])
+# ---------------------------
+# Check to see if options -c and -o are simultaneously supported by compiler.
+# This macro does not hard code the compiler like AC_PROG_CC_C_O.
+m4_defun([_LT_COMPILER_C_O],
+[m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+     fi
+   fi
+   chmod u+w . 2>&AS_MESSAGE_LOG_FD
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+])
+_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
+	[Does compiler simultaneously support -c and -o options?])
+])# _LT_COMPILER_C_O
+
+
+# _LT_COMPILER_FILE_LOCKS([TAGNAME])
+# ----------------------------------
+# Check to see if we can do hard links to lock some files if needed
+m4_defun([_LT_COMPILER_FILE_LOCKS],
+[m4_require([_LT_ENABLE_LOCK])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_COMPILER_C_O([$1])
+
+hard_links="nottested"
+if test "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  AC_MSG_CHECKING([if we can lock with hard links])
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  AC_MSG_RESULT([$hard_links])
+  if test "$hard_links" = no; then
+    AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
+])# _LT_COMPILER_FILE_LOCKS
+
+
+# _LT_CHECK_OBJDIR
+# ----------------
+m4_defun([_LT_CHECK_OBJDIR],
+[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
+[rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null])
+objdir=$lt_cv_objdir
+_LT_DECL([], [objdir], [0],
+         [The name of the directory that contains temporary libtool files])dnl
+m4_pattern_allow([LT_OBJDIR])dnl
+AC_DEFINE_UNQUOTED(LT_OBJDIR, "$lt_cv_objdir/",
+  [Define to the sub-directory in which libtool stores uninstalled libraries.])
+])# _LT_CHECK_OBJDIR
+
+
+# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
+# --------------------------------------
+# Check hardcoding attributes.
+m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
+[AC_MSG_CHECKING([how to hardcode library paths into programs])
+_LT_TAGVAR(hardcode_action, $1)=
+if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
+   test -n "$_LT_TAGVAR(runpath_var, $1)" ||
+   test "X$_LT_TAGVAR(hardcode_automatic, $1)" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$_LT_TAGVAR(hardcode_direct, $1)" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" != no &&
+     test "$_LT_TAGVAR(hardcode_minus_L, $1)" != no; then
+    # Linking always hardcodes the temporary library directory.
+    _LT_TAGVAR(hardcode_action, $1)=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    _LT_TAGVAR(hardcode_action, $1)=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  _LT_TAGVAR(hardcode_action, $1)=unsupported
+fi
+AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
+
+if test "$_LT_TAGVAR(hardcode_action, $1)" = relink ||
+   test "$_LT_TAGVAR(inherit_rpath, $1)" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+_LT_TAGDECL([], [hardcode_action], [0],
+    [How to hardcode a shared library path into an executable])
+])# _LT_LINKER_HARDCODE_LIBPATH
+
+
+# _LT_CMD_STRIPLIB
+# ----------------
+m4_defun([_LT_CMD_STRIPLIB],
+[m4_require([_LT_DECL_EGREP])
+striplib=
+old_striplib=
+AC_MSG_CHECKING([whether stripping libraries is possible])
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  AC_MSG_RESULT([yes])
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP" ; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      AC_MSG_RESULT([yes])
+    else
+      AC_MSG_RESULT([no])
+    fi
+    ;;
+  *)
+    AC_MSG_RESULT([no])
+    ;;
+  esac
+fi
+_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
+_LT_DECL([], [striplib], [1])
+])# _LT_CMD_STRIPLIB
+
+
+# _LT_SYS_DYNAMIC_LINKER([TAG])
+# -----------------------------
+# PORTME Fill in your ld.so characteristics
+m4_defun([_LT_SYS_DYNAMIC_LINKER],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_OBJDUMP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+AC_MSG_CHECKING([dynamic linker characteristics])
+m4_if([$1],
+	[], [
+if test "$GCC" = yes; then
+  case $host_os in
+    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
+    *) lt_awk_arg="/^libraries:/" ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq="s,=\([[A-Za-z]]:\),\1,g" ;;
+    *) lt_sed_strip_eq="s,=/,/,g" ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary.
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
+    else
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS=" "; FS="/|\n";} {
+  lt_foo="";
+  lt_count=0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo="/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[[lt_foo]]++; }
+  if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's,/\([[A-Za-z]]:\),\1,g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi])
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[[4-9]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[[01]] | aix4.[[01]].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[[45]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+m4_if([$1], [],[
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+    library_names_spec='${libname}.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec="$LIB"
+      if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+m4_if([$1], [],[
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[[23]].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[[01]]* | freebsdelf3.[[01]]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
+  freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[[3-9]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
+    [lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
+	 LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+      [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
+	 [lt_cv_shlibpath_overrides_runpath=yes])])
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+    ])
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Add ABI-specific directories to the system library path.
+  sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[[89]] | openbsd2.[[89]].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+AC_MSG_RESULT([$dynamic_linker])
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+_LT_DECL([], [variables_saved_for_relink], [1],
+    [Variables whose values should be saved in libtool wrapper scripts and
+    restored at link time])
+_LT_DECL([], [need_lib_prefix], [0],
+    [Do we need the "lib" prefix for modules?])
+_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
+_LT_DECL([], [version_type], [0], [Library versioning type])
+_LT_DECL([], [runpath_var], [0],  [Shared library runtime path variable])
+_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
+_LT_DECL([], [shlibpath_overrides_runpath], [0],
+    [Is shlibpath searched before the hard-coded library search path?])
+_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
+_LT_DECL([], [library_names_spec], [1],
+    [[List of archive names.  First name is the real one, the rest are links.
+    The last name is the one that the linker finds with -lNAME]])
+_LT_DECL([], [soname_spec], [1],
+    [[The coded name of the library, if different from the real name]])
+_LT_DECL([], [install_override_mode], [1],
+    [Permission mode override for installation of shared libraries])
+_LT_DECL([], [postinstall_cmds], [2],
+    [Command to use after installation of a shared archive])
+_LT_DECL([], [postuninstall_cmds], [2],
+    [Command to use after uninstallation of a shared archive])
+_LT_DECL([], [finish_cmds], [2],
+    [Commands used to finish a libtool library installation in a directory])
+_LT_DECL([], [finish_eval], [1],
+    [[As "finish_cmds", except a single script fragment to be evaled but
+    not shown]])
+_LT_DECL([], [hardcode_into_libs], [0],
+    [Whether we should hardcode library paths into libraries])
+_LT_DECL([], [sys_lib_search_path_spec], [2],
+    [Compile-time system search path for libraries])
+_LT_DECL([], [sys_lib_dlsearch_path_spec], [2],
+    [Run-time system search path for libraries])
+])# _LT_SYS_DYNAMIC_LINKER
+
+
+# _LT_PATH_TOOL_PREFIX(TOOL)
+# --------------------------
+# find a file program which can recognize shared library
+AC_DEFUN([_LT_PATH_TOOL_PREFIX],
+[m4_require([_LT_DECL_EGREP])dnl
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
+[case $MAGIC_CMD in
+[[\\/*] |  ?:[\\/]*])
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+dnl $ac_dummy forces splitting on constant user-supplied paths.
+dnl POSIX.2 word splitting is done only on the output of word expansions,
+dnl not every word.  This closes a longstanding sh security hole.
+  ac_dummy="m4_if([$2], , $PATH, [$2])"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$1; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/$1"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac])
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  AC_MSG_RESULT($MAGIC_CMD)
+else
+  AC_MSG_RESULT(no)
+fi
+_LT_DECL([], [MAGIC_CMD], [0],
+	 [Used to examine libraries when file_magic_cmd begins with "file"])dnl
+])# _LT_PATH_TOOL_PREFIX
+
+# Old name:
+AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
+
+
+# _LT_PATH_MAGIC
+# --------------
+# find a file program which can recognize a shared library
+m4_defun([_LT_PATH_MAGIC],
+[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
+  else
+    MAGIC_CMD=:
+  fi
+fi
+])# _LT_PATH_MAGIC
+
+
+# LT_PATH_LD
+# ----------
+# find the pathname to the GNU or non-GNU linker
+AC_DEFUN([LT_PATH_LD],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
+
+AC_ARG_WITH([gnu-ld],
+    [AS_HELP_STRING([--with-gnu-ld],
+	[assume the C compiler uses GNU ld @<:@default=no@:>@])],
+    [test "$withval" = no || with_gnu_ld=yes],
+    [with_gnu_ld=no])dnl
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  AC_MSG_CHECKING([for ld used by $CC])
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [[\\/]]* | ?:[[\\/]]*)
+      re_direlt='/[[^/]][[^/]]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  AC_MSG_CHECKING([for GNU ld])
+else
+  AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(lt_cv_path_LD,
+[if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi])
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  AC_MSG_RESULT($LD)
+else
+  AC_MSG_RESULT(no)
+fi
+test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+_LT_PATH_LD_GNU
+AC_SUBST([LD])
+
+_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
+])# LT_PATH_LD
+
+# Old names:
+AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
+AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_LD], [])
+dnl AC_DEFUN([AC_PROG_LD], [])
+
+
+# _LT_PATH_LD_GNU
+#- --------------
+m4_defun([_LT_PATH_LD_GNU],
+[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
+[# I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac])
+with_gnu_ld=$lt_cv_prog_gnu_ld
+])# _LT_PATH_LD_GNU
+
+
+# _LT_CMD_RELOAD
+# --------------
+# find reload flag for linker
+#   -- PORTME Some linkers may need a different reload flag.
+m4_defun([_LT_CMD_RELOAD],
+[AC_CACHE_CHECK([for $LD option to reload object files],
+  lt_cv_ld_reload_flag,
+  [lt_cv_ld_reload_flag='-r'])
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test "$GCC" != yes; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test "$GCC" = yes; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+_LT_TAGDECL([], [reload_flag], [1], [How to create reloadable object files])dnl
+_LT_TAGDECL([], [reload_cmds], [2])dnl
+])# _LT_CMD_RELOAD
+
+
+# _LT_CHECK_MAGIC_METHOD
+# ----------------------
+# how to check for library dependencies
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_MAGIC_METHOD],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+AC_CACHE_CHECK([how to recognize dependent libraries],
+lt_cv_deplibs_check_method,
+[lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[[4-9]]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[[45]]*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[[3-9]]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+])
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+_LT_DECL([], [deplibs_check_method], [1],
+    [Method to check whether dependent libraries are shared objects])
+_LT_DECL([], [file_magic_cmd], [1],
+    [Command to use when deplibs_check_method = "file_magic"])
+_LT_DECL([], [file_magic_glob], [1],
+    [How to find potential files when deplibs_check_method = "file_magic"])
+_LT_DECL([], [want_nocaseglob], [1],
+    [Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
+])# _LT_CHECK_MAGIC_METHOD
+
+
+# LT_PATH_NM
+# ----------
+# find the pathname to a BSD- or MS-compatible name lister
+AC_DEFUN([LT_PATH_NM],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
+[if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_nm_to_check="${ac_tool_prefix}nm"
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS="$lt_save_ifs"
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm="$ac_dir/$lt_tmp_nm"
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+	*/dev/null* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS="$lt_save_ifs"
+  done
+  : ${lt_cv_path_NM=no}
+fi])
+if test "$lt_cv_path_NM" != "no"; then
+  NM="$lt_cv_path_NM"
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
+    case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+  AC_SUBST([DUMPBIN])
+  if test "$DUMPBIN" != ":"; then
+    NM="$DUMPBIN"
+  fi
+fi
+test -z "$NM" && NM=nm
+AC_SUBST([NM])
+_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
+
+AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
+  [lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
+  cat conftest.out >&AS_MESSAGE_LOG_FD
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*])
+])# LT_PATH_NM
+
+# Old names:
+AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
+AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_NM], [])
+dnl AC_DEFUN([AC_PROG_NM], [])
+
+# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+# --------------------------------
+# how to determine the name of the shared library
+# associated with a specific link library.
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+m4_require([_LT_DECL_DLLTOOL])
+AC_CACHE_CHECK([how to associate runtime and link libraries],
+lt_cv_sharedlib_from_linklib_cmd,
+[lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh
+  # decide which to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+  ;;
+esac
+])
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
+    [Command to associate shared and link libraries])
+])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+
+
+# _LT_PATH_MANIFEST_TOOL
+# ----------------------
+# locate the manifest tool
+m4_defun([_LT_PATH_MANIFEST_TOOL],
+[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
+  [lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*])
+if test "x$lt_cv_path_mainfest_tool" != xyes; then
+  MANIFEST_TOOL=:
+fi
+_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
+])# _LT_PATH_MANIFEST_TOOL
+
+
+# LT_LIB_M
+# --------
+# check for math library
+AC_DEFUN([LT_LIB_M],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+LIBM=
+case $host in
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+  # These system don't have libm, or don't need it
+  ;;
+*-ncr-sysv4.3*)
+  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
+  AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
+  ;;
+*)
+  AC_CHECK_LIB(m, cos, LIBM="-lm")
+  ;;
+esac
+AC_SUBST([LIBM])
+])# LT_LIB_M
+
+# Old name:
+AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_CHECK_LIBM], [])
+
+
+# _LT_COMPILER_NO_RTTI([TAGNAME])
+# -------------------------------
+m4_defun([_LT_COMPILER_NO_RTTI],
+[m4_require([_LT_TAG_COMPILER])dnl
+
+_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+
+if test "$GCC" = yes; then
+  case $cc_basename in
+  nvcc*)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
+  esac
+
+  _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
+    lt_cv_prog_compiler_rtti_exceptions,
+    [-fno-rtti -fno-exceptions], [],
+    [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
+fi
+_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
+	[Compiler flag to turn off builtin functions])
+])# _LT_COMPILER_NO_RTTI
+
+
+# _LT_CMD_GLOBAL_SYMBOLS
+# ----------------------
+m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output from $compiler object])
+AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
+[
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[[BCDEGRST]]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[[BCDT]]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[[ABCDGISTW]]'
+  ;;
+hpux*)
+  if test "$host_cpu" = ia64; then
+    symcode='[[ABCDEGRST]]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[[BCDEGRST]]'
+  ;;
+osf*)
+  symcode='[[BCDEGQRST]]'
+  ;;
+solaris*)
+  symcode='[[BDRT]]'
+  ;;
+sco3.2v5*)
+  symcode='[[DT]]'
+  ;;
+sysv4.2uw2*)
+  symcode='[[DT]]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[[ABDT]]'
+  ;;
+sysv4)
+  symcode='[[DFNSTU]]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[[ABCDGIRSTW]]' ;;
+esac
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([[^ ]]*\)[[ ]]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([[^ ]]*\) \(lib[[^ ]]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([[^ ]]*\) \([[^ ]]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function
+    # and D for any global variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK ['"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
+"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
+"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx]"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[	 ]]\($symcode$symcode*\)[[	 ]][[	 ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if AC_TRY_EVAL(ac_compile); then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
+/* DATA imports from DLLs on WIN32 con't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT@&t@_DLSYM_CONST
+#elif defined(__osf__)
+/* This system does not cope well with relocations in const data.  */
+# define LT@&t@_DLSYM_CONST
+#else
+# define LT@&t@_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT@&t@_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[[]] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS="conftstm.$ac_objext"
+	  CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
+	  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext}; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+    fi
+  else
+    echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+])
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  AC_MSG_RESULT(failed)
+else
+  AC_MSG_RESULT(ok)
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
+    [Take the output of nm and produce a listing of raw symbols and C names])
+_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
+    [Transform the output of nm in a proper C declaration])
+_LT_DECL([global_symbol_to_c_name_address],
+    [lt_cv_sys_global_symbol_to_c_name_address], [1],
+    [Transform the output of nm in a C name address pair])
+_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
+    [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
+    [Transform the output of nm in a C name address pair when lib prefix is needed])
+_LT_DECL([], [nm_file_list_spec], [1],
+    [Specify filename containing input files for $NM])
+]) # _LT_CMD_GLOBAL_SYMBOLS
+
+
+# _LT_COMPILER_PIC([TAGNAME])
+# ---------------------------
+m4_defun([_LT_COMPILER_PIC],
+[m4_require([_LT_TAG_COMPILER])dnl
+_LT_TAGVAR(lt_prog_compiler_wl, $1)=
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+_LT_TAGVAR(lt_prog_compiler_static, $1)=
+
+m4_if([$1], [CXX], [
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[[4-9]]*)
+	# All AIX code is PIC.
+	if test "$host_cpu" = ia64; then
+	  # AIX 5 now supports IA64 processor
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	else
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	m4_if([$1], [GCJ], [],
+	  [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+	    if test "$host_cpu" != ia64; then
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64 which still supported -KPIC.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd*)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+	;;
+    esac
+  fi
+],
+[
+  if test "$GCC" = yes; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
+      if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      else
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC (with -KPIC) is the default.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu)
+      case $cc_basename in
+      # old Intel for x86_64 which still supported -KPIC.
+      ecc*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+        ;;
+      ccc*)
+        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+        # All Alpha code is PIC.
+        _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  ;;
+        *Intel*\ [[CF]]*Compiler*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	  ;;
+	*Portland\ Group*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # All OSF/1 code is PIC.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    rdos*)
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    unicos*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+    esac
+  fi
+])
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+    ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
+    ;;
+esac
+
+AC_CACHE_CHECK([for $compiler option to produce PIC],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+  _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
+    [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
+    [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
+    [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
+     "" | " "*) ;;
+     *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
+     esac],
+    [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+     _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
+fi
+_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
+	[Additional compiler flags for building library objects])
+
+_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
+	[How to pass a linker flag through the compiler])
+#
+# Check to make sure the static flag actually works.
+#
+wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
+_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
+  _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
+  $lt_tmp_static_flag,
+  [],
+  [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
+_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
+	[Compiler flag to prevent dynamic linking])
+])# _LT_COMPILER_PIC
+
+
+# _LT_LINKER_SHLIBS([TAGNAME])
+# ----------------------------
+# See if the linker supports building shared libraries.
+m4_defun([_LT_LINKER_SHLIBS],
+[AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+m4_if([$1], [CXX], [
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  case $host_os in
+  aix[[4-9]]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    # Also, AIX nm treats weak defined symbols like other global defined
+    # symbols, whereas GNU nm marks them as "W".
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    else
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*)
+      _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
+    *)
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+      ;;
+    esac
+    ;;
+  *)
+    _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+], [
+  runpath_var=
+  _LT_TAGVAR(allow_undefined_flag, $1)=
+  _LT_TAGVAR(always_export_symbols, $1)=no
+  _LT_TAGVAR(archive_cmds, $1)=
+  _LT_TAGVAR(archive_expsym_cmds, $1)=
+  _LT_TAGVAR(compiler_needs_object, $1)=no
+  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+  _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(hardcode_automatic, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+  _LT_TAGVAR(hardcode_minus_L, $1)=no
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  _LT_TAGVAR(inherit_rpath, $1)=no
+  _LT_TAGVAR(link_all_deplibs, $1)=unknown
+  _LT_TAGVAR(module_cmds, $1)=
+  _LT_TAGVAR(module_expsym_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_new_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
+  _LT_TAGVAR(thread_safe_flag_spec, $1)=
+  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  _LT_TAGVAR(include_expsyms, $1)=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+dnl Note also adjust exclude_expsyms for C++ above.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  _LT_TAGVAR(ld_shlibs, $1)=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test "$with_gnu_ld" = yes; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
+	  *\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test "$lt_use_gnu_ld_interface" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[[3-9]]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+      # as there is no search path for DLLs.
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols'
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=no
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file (1st line
+	# is EXPORTS), use it as is; otherwise, prepend...
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	  cp $export_symbols $output_objdir/$soname.def;
+	else
+	  echo EXPORTS > $output_objdir/$soname.def;
+	  cat $export_symbols >> $output_objdir/$soname.def;
+	fi~
+	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    haiku*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    interix[[3-9]]*)
+      _LT_TAGVAR(hardcode_direct, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test "$host_os" = linux-dietlibc; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test "$tmp_diet" = no
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+	  tmp_sharedflag='--shared' ;;
+	xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	_LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+
+        if test "x$supports_anon_versioning" = xyes; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	    echo "local: *; };" >> $output_objdir/$libname.ver~
+	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test "x$supports_anon_versioning" = xyes; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	      echo "local: *; };" >> $output_objdir/$libname.ver~
+	      $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        _LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+    esac
+
+    if test "$_LT_TAGVAR(ld_shlibs, $1)" = no; then
+      runpath_var=
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	_LT_TAGVAR(hardcode_direct, $1)=unsupported
+      fi
+      ;;
+
+    aix[[4-9]]*)
+      if test "$host_cpu" = ia64; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=""
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to AIX nm, but means don't demangle with GNU nm
+	# Also, AIX nm treats weak defined symbols like other global
+	# defined symbols, whereas GNU nm marks them as "W".
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	else
+	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && ([substr](\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# need to do runtime linking.
+	case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      _LT_TAGVAR(archive_cmds, $1)=''
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
+
+      if test "$GCC" = yes; then
+	case $host_os in aix4.[[012]]|aix4.[[012]].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test "$aix_use_runtimelinking" = yes; then
+	  shared_flag="$shared_flag "'${wl}-G'
+	fi
+      else
+	# not using gcc
+	if test "$host_cpu" = ia64; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag='${wl}-G'
+	  else
+	    shared_flag='${wl}-bM:SRE'
+	  fi
+	fi
+      fi
+
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      if test "$aix_use_runtimelinking" = yes; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        _LT_SYS_MODULE_PATH_AIX([$1])
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+      else
+	if test "$host_cpu" = ia64; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+	  _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 _LT_SYS_MODULE_PATH_AIX([$1])
+	 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
+	  if test "$with_gnu_ld" = yes; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	  fi
+	  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  # This is similar to how AIX traditionally builds its shared libraries.
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[[45]]*)
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	_LT_TAGVAR(always_export_symbols, $1)=yes
+	_LT_TAGVAR(file_list_spec, $1)='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	    sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	  else
+	    sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	  fi~
+	  $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	  linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	_LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+	  lt_tool_outputfile="@TOOL_OUTPUT@"~
+	  case $lt_outputfile in
+	    *.exe|*.EXE) ;;
+	    *)
+	      lt_outputfile="$lt_outputfile.exe"
+	      lt_tool_outputfile="$lt_tool_outputfile.exe"
+	      ;;
+	  esac~
+	  if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	    $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	    $RM "$lt_outputfile.manifest";
+	  fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	_LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	# FIXME: Should let the user specify the lib program.
+	_LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      _LT_DARWIN_LINKER_FEATURES($1)
+      ;;
+
+    dgux*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+      ;;
+
+    hpux10*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test "$with_gnu_ld" = no; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	_LT_TAGVAR(hardcode_minus_L, $1)=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	m4_if($1, [], [
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  _LT_LINKER_OPTION([if $CC understands -b],
+	    _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
+	    [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
+	    [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
+	  [_LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
+	  ;;
+	esac
+      fi
+      if test "$with_gnu_ld" = no; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  ;;
+	*)
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
+	  [lt_cv_irix_exported_symbol],
+	  [save_LDFLAGS="$LDFLAGS"
+	   LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+	   AC_LINK_IFELSE(
+	     [AC_LANG_SOURCE(
+	        [AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
+			      [C++], [[int foo (void) { return 0; }]],
+			      [Fortran 77], [[
+      subroutine foo
+      end]],
+			      [Fortran], [[
+      subroutine foo
+      end]])])],
+	      [lt_cv_irix_exported_symbol=yes],
+	      [lt_cv_irix_exported_symbol=no])
+           LDFLAGS="$save_LDFLAGS"])
+	if test "$lt_cv_irix_exported_symbol" = yes; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+	fi
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(inherit_rpath, $1)=yes
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd*)
+      if test -f /usr/libexec/ld.so; then
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	else
+	  case $host_os in
+	   openbsd[[01]].* | openbsd2.[[0-7]] | openbsd2.[[0-7]].*)
+	     _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+	     _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	     ;;
+	   *)
+	     _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	     _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	     ;;
+	  esac
+	fi
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    os2*)
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      _LT_TAGVAR(old_archive_from_new_cmds, $1)='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
+      if test "$GCC" = yes; then
+	wlarc='${wl}'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='${wl}'
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      case $host_os in
+      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands `-z linker_flag'.  GCC discards it without `$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test "$GCC" = yes; then
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+	else
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+        ;;
+	motorola)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4.3*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	_LT_TAGVAR(ld_shlibs, $1)=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We can NOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      _LT_TAGVAR(ld_shlibs, $1)=no
+      ;;
+    esac
+
+    if test x$host_vendor = xsni; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+])
+AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
+
+_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
+_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
+_LT_DECL([], [extract_expsyms_cmds], [2],
+    [The commands to extract the exported symbol list from a shared archive])
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
+x|xyes)
+  # Assume -lc should be added
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $_LT_TAGVAR(archive_cmds, $1) in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      AC_CACHE_CHECK([whether -lc should be explicitly linked in],
+	[lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
+	[$RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
+	  pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
+	  _LT_TAGVAR(allow_undefined_flag, $1)=
+	  if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
+	  then
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	  else
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  fi
+	  _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+	])
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
+    [Whether or not to add -lc for building shared libraries])
+_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
+    [enable_shared_with_static_runtimes], [0],
+    [Whether or not to disallow shared libs when runtime libs are static])
+_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
+    [Compiler flag to allow reflexive dlopens])
+_LT_TAGDECL([], [whole_archive_flag_spec], [1],
+    [Compiler flag to generate shared objects directly from archives])
+_LT_TAGDECL([], [compiler_needs_object], [1],
+    [Whether the compiler copes with passing no objects directly])
+_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
+    [Create an old-style archive from a shared archive])
+_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
+    [Create a temporary old-style archive to link instead of a shared archive])
+_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
+_LT_TAGDECL([], [archive_expsym_cmds], [2])
+_LT_TAGDECL([], [module_cmds], [2],
+    [Commands used to build a loadable module if different from building
+    a shared archive.])
+_LT_TAGDECL([], [module_expsym_cmds], [2])
+_LT_TAGDECL([], [with_gnu_ld], [1],
+    [Whether we are building with GNU ld or not])
+_LT_TAGDECL([], [allow_undefined_flag], [1],
+    [Flag that allows shared libraries with undefined symbols to be built])
+_LT_TAGDECL([], [no_undefined_flag], [1],
+    [Flag that enforces no undefined symbols])
+_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
+    [Flag to hardcode $libdir into a binary during linking.
+    This must work even if $libdir does not exist])
+_LT_TAGDECL([], [hardcode_libdir_separator], [1],
+    [Whether we need a single "-rpath" flag with a separated argument])
+_LT_TAGDECL([], [hardcode_direct], [0],
+    [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
+    DIR into the resulting binary])
+_LT_TAGDECL([], [hardcode_direct_absolute], [0],
+    [Set to "yes" if using DIR/libNAME${shared_ext} during linking hardcodes
+    DIR into the resulting binary and the resulting library dependency is
+    "absolute", i.e impossible to change by setting ${shlibpath_var} if the
+    library is relocated])
+_LT_TAGDECL([], [hardcode_minus_L], [0],
+    [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
+    [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_automatic], [0],
+    [Set to "yes" if building a shared library automatically hardcodes DIR
+    into the library and all subsequent libraries and executables linked
+    against it])
+_LT_TAGDECL([], [inherit_rpath], [0],
+    [Set to yes if linker adds runtime paths of dependent libraries
+    to runtime path list])
+_LT_TAGDECL([], [link_all_deplibs], [0],
+    [Whether libtool must link a program against all its dependency libraries])
+_LT_TAGDECL([], [always_export_symbols], [0],
+    [Set to "yes" if exported symbols are required])
+_LT_TAGDECL([], [export_symbols_cmds], [2],
+    [The commands to list exported symbols])
+_LT_TAGDECL([], [exclude_expsyms], [1],
+    [Symbols that should not be listed in the preloaded symbols])
+_LT_TAGDECL([], [include_expsyms], [1],
+    [Symbols that must always be exported])
+_LT_TAGDECL([], [prelink_cmds], [2],
+    [Commands necessary for linking programs (against libraries) with templates])
+_LT_TAGDECL([], [postlink_cmds], [2],
+    [Commands necessary for finishing linking programs])
+_LT_TAGDECL([], [file_list_spec], [1],
+    [Specify filename containing input files])
+dnl FIXME: Not yet implemented
+dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
+dnl    [Compiler flag to generate thread safe objects])
+])# _LT_LINKER_SHLIBS
+
+
+# _LT_LANG_C_CONFIG([TAG])
+# ------------------------
+# Ensure that the configuration variables for a C compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_C_CONFIG],
+[m4_require([_LT_DECL_EGREP])dnl
+lt_save_CC="$CC"
+AC_LANG_PUSH(C)
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+_LT_TAG_COMPILER
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_SYS_DYNAMIC_LINKER($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+  LT_SYS_DLOPEN_SELF
+  _LT_CMD_STRIPLIB
+
+  # Report which library types will actually be built
+  AC_MSG_CHECKING([if libtool supports shared libraries])
+  AC_MSG_RESULT([$can_build_shared])
+
+  AC_MSG_CHECKING([whether to build shared libraries])
+  test "$can_build_shared" = "no" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test "$enable_shared" = yes && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[[4-9]]*)
+    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+      test "$enable_shared" = yes && enable_static=no
+    fi
+    ;;
+  esac
+  AC_MSG_RESULT([$enable_shared])
+
+  AC_MSG_CHECKING([whether to build static libraries])
+  # Make sure either enable_shared or enable_static is yes.
+  test "$enable_shared" = yes || enable_static=yes
+  AC_MSG_RESULT([$enable_static])
+
+  _LT_CONFIG($1)
+fi
+AC_LANG_POP
+CC="$lt_save_CC"
+])# _LT_LANG_C_CONFIG
+
+
+# _LT_LANG_CXX_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a C++ compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_CXX_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
+    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
+    (test "X$CXX" != "Xg++"))) ; then
+  AC_PROG_CXXCPP
+else
+  _lt_caught_CXX_error=yes
+fi
+
+AC_LANG_PUSH(C++)
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(compiler_needs_object, $1)=no
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_caught_CXX_error" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test "$GXX" = yes; then
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+    else
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+    fi
+
+    if test "$GXX" = yes; then
+      # Set up default GNU C++ configuration
+
+      LT_PATH_LD
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test "$with_gnu_ld" = yes; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='${wl}'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+        else
+          _LT_TAGVAR(whole_archive_flag_spec, $1)=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+    _LT_TAGVAR(ld_shlibs, $1)=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+      aix[[4-9]]*)
+        if test "$host_cpu" = ia64; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=""
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # need to do runtime linking.
+          case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        _LT_TAGVAR(archive_cmds, $1)=''
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        _LT_TAGVAR(file_list_spec, $1)='${wl}-f,'
+
+        if test "$GXX" = yes; then
+          case $host_os in aix4.[[012]]|aix4.[[012]].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag="$shared_flag "'${wl}-G'
+	  fi
+        else
+          # not using gcc
+          if test "$host_cpu" = ia64; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test "$aix_use_runtimelinking" = yes; then
+	      shared_flag='${wl}-G'
+	    else
+	      shared_flag='${wl}-bM:SRE'
+	    fi
+          fi
+        fi
+
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        _LT_TAGVAR(always_export_symbols, $1)=yes
+        if test "$aix_use_runtimelinking" = yes; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          _LT_SYS_MODULE_PATH_AIX([$1])
+          _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+        else
+          if test "$host_cpu" = ia64; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $libdir:/usr/lib:/lib'
+	    _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    _LT_SYS_MODULE_PATH_AIX([$1])
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-bernotok'
+	    _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-berok'
+	    if test "$with_gnu_ld" = yes; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	    fi
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	    # This is similar to how AIX traditionally builds its shared
+	    # libraries.
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=yes
+	  _LT_TAGVAR(file_list_spec, $1)='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=".dll"
+	  # FIXME: Setting linknames here is a bad hack.
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	    else
+	      $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	    fi~
+	    $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	    linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	  # Don't use ranlib
+	  _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	  _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+	    lt_tool_outputfile="@TOOL_OUTPUT@"~
+	    case $lt_outputfile in
+	      *.exe|*.EXE) ;;
+	      *)
+		lt_outputfile="$lt_outputfile.exe"
+		lt_tool_outputfile="$lt_tool_outputfile.exe"
+		;;
+	    esac~
+	    func_to_tool_file "$lt_outputfile"~
+	    if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	      $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	      $RM "$lt_outputfile.manifest";
+	    fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-all-symbols'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=no
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file (1st line
+	    # is EXPORTS), use it as is; otherwise, prepend...
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      cp $export_symbols $output_objdir/$soname.def;
+	    else
+	      echo EXPORTS > $output_objdir/$soname.def;
+	      cat $export_symbols >> $output_objdir/$soname.def;
+	    fi~
+	    $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+        _LT_DARWIN_LINKER_FEATURES($1)
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      freebsd-elf*)
+        _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+        ;;
+
+      gnu*)
+        ;;
+
+      haiku*)
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        ;;
+
+      hpux9*)
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            _LT_TAGVAR(ld_shlibs, $1)=no
+            ;;
+          aCC*)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test "$GXX" = yes; then
+              _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              _LT_TAGVAR(ld_shlibs, $1)=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test $with_gnu_ld = no; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}+b ${wl}$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            _LT_TAGVAR(hardcode_direct, $1)=no
+            _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+            ;;
+          *)
+            _LT_TAGVAR(hardcode_direct, $1)=yes
+            _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test $with_gnu_ld = no; then
+	        case $host_cpu in
+	          hppa*64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[[3-9]]*)
+	_LT_TAGVAR(hardcode_direct, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test "$with_gnu_ld" = no; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	      else
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
+	      fi
+	    fi
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+	    ;;
+        esac
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(inherit_rpath, $1)=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
+	      _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+		$RANLIB $oldlib'
+	      _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}--rpath ${wl}$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}--export-dynamic'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    if test "x$supports_anon_versioning" = xyes; then
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+		echo "local: *; };" >> $output_objdir/$libname.ver~
+		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	      _LT_TAGVAR(compiler_needs_object, $1)=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+	;;
+
+      openbsd2*)
+        # C++ shared libraries are fairly broken
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      openbsd*)
+	if test -f /usr/libexec/ld.so; then
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-E'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath,$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+		;;
+	      *)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+	          echo "-hidden">> $lib.exp~
+	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
+	          $RM $lib.exp'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+		;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      _LT_TAGVAR(allow_undefined_flag, $1)=' ${wl}-expect_unresolved ${wl}\*'
+	      case $host in
+	        osf3*)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	        *)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-rpath ${wl}$libdir'
+	      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
+	    _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	    _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	    case $host_os in
+	      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands `-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      _LT_TAGVAR(no_undefined_flag, $1)=' ${wl}-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
+	        # platform.
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R $wl$libdir'
+	      case $host_os in
+		solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+		*)
+		  _LT_TAGVAR(whole_archive_flag_spec, $1)='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We can NOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	_LT_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+	_LT_TAGVAR(allow_undefined_flag, $1)='${wl}-z,nodefs'
+	_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='${wl}-R,$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+	_LT_TAGVAR(link_all_deplibs, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
+	      '"$_LT_TAGVAR(old_archive_cmds, $1)"
+	    _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
+	      '"$_LT_TAGVAR(reload_cmds, $1)"
+	    ;;
+	  *)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+    esac
+
+    AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+    test "$_LT_TAGVAR(ld_shlibs, $1)" = no && can_build_shared=no
+
+    _LT_TAGVAR(GCC, $1)="$GXX"
+    _LT_TAGVAR(LD, $1)="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test "$_lt_caught_CXX_error" != yes
+
+AC_LANG_POP
+])# _LT_LANG_CXX_CONFIG
+
+
+# _LT_FUNC_STRIPNAME_CNF
+# ----------------------
+# func_stripname_cnf prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+#
+# This function is identical to the (non-XSI) version of func_stripname,
+# except this one can be used by m4 code that may be executed by configure,
+# rather than the libtool script.
+m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
+AC_REQUIRE([_LT_DECL_SED])
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
+func_stripname_cnf ()
+{
+  case ${2} in
+  .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+  *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+  esac
+} # func_stripname_cnf
+])# _LT_FUNC_STRIPNAME_CNF
+
+# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
+# ---------------------------------
+# Figure out "hidden" library dependencies from verbose
+# compiler output when linking a shared library.
+# Parse the compiler output and extract the necessary
+# objects, libraries and library flags.
+m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
+# Dependencies to place before and after the object being linked:
+_LT_TAGVAR(predep_objects, $1)=
+_LT_TAGVAR(postdep_objects, $1)=
+_LT_TAGVAR(predeps, $1)=
+_LT_TAGVAR(postdeps, $1)=
+_LT_TAGVAR(compiler_lib_search_path, $1)=
+
+dnl we can't use the lt_simple_compile_test_code here,
+dnl because it contains code intended for an executable,
+dnl not a library.  It's possible we should let each
+dnl tag define a new lt_????_link_test_code variable,
+dnl but it's only used here...
+m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
+int a;
+void foo (void) { a = 0; }
+_LT_EOF
+], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer*4 a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
+public class foo {
+  private int a;
+  public void bar (void) {
+    a = 0;
+  }
+};
+_LT_EOF
+], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
+package foo
+func foo() {
+}
+_LT_EOF
+])
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+dnl Parse the compiler output and extract the necessary
+dnl objects, libraries and library flags.
+if AC_TRY_EVAL(ac_compile); then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case ${prev}${p} in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" ||
+          test $p = "-R"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test "$pre_test_object_deps_done" = no; then
+	 case ${prev} in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
+	     _LT_TAGVAR(compiler_lib_search_path, $1)="${prev}${p}"
+	   else
+	     _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} ${prev}${p}"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$_LT_TAGVAR(postdeps, $1)"; then
+	   _LT_TAGVAR(postdeps, $1)="${prev}${p}"
+	 else
+	   _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} ${prev}${p}"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+	 if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
+	   _LT_TAGVAR(predep_objects, $1)="$p"
+	 else
+	   _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
+	 fi
+       else
+	 if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
+	   _LT_TAGVAR(postdep_objects, $1)="$p"
+	 else
+	   _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling $1 test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+m4_if([$1], [CXX],
+[case $host_os in
+interix[[3-9]]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  _LT_TAGVAR(predep_objects,$1)=
+  _LT_TAGVAR(postdep_objects,$1)=
+  _LT_TAGVAR(postdeps,$1)=
+  ;;
+
+linux*)
+  case `$CC -V 2>&1 | sed 5q` in
+  *Sun\ C*)
+    # Sun C++ 5.9
+
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    if test "$solaris_use_stlport4" != yes; then
+      _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+
+solaris*)
+  case $cc_basename in
+  CC* | sunCC*)
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    # Adding this requires a known-good setup of shared libraries for
+    # Sun compiler versions before 5.6, else PIC objects from an old
+    # archive will be linked into the output, leading to subtle bugs.
+    if test "$solaris_use_stlport4" != yes; then
+      _LT_TAGVAR(postdeps,$1)='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+esac
+])
+
+case " $_LT_TAGVAR(postdeps, $1) " in
+*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
+esac
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=
+if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
+fi
+_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
+    [The directories searched by this compiler when creating a shared library])
+_LT_TAGDECL([], [predep_objects], [1],
+    [Dependencies to place before and after the objects being linked to
+    create a shared library])
+_LT_TAGDECL([], [postdep_objects], [1])
+_LT_TAGDECL([], [predeps], [1])
+_LT_TAGDECL([], [postdeps], [1])
+_LT_TAGDECL([], [compiler_lib_search_path], [1],
+    [The library search path used internally by the compiler when linking
+    a shared library])
+])# _LT_SYS_HIDDEN_LIBDEPS
+
+
+# _LT_LANG_F77_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a Fortran 77 compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_F77_CONFIG],
+[AC_LANG_PUSH(Fortran 77)
+if test -z "$F77" || test "X$F77" = "Xno"; then
+  _lt_disable_F77=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the F77 compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_disable_F77" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC="$CC"
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${F77-"f77"}
+  CFLAGS=$FFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+  GCC=$G77
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test "$can_build_shared" = "no" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test "$enable_shared" = yes && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+	  test "$enable_shared" = yes && enable_static=no
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test "$enable_shared" = yes || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)="$G77"
+    _LT_TAGVAR(LD, $1)="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC="$lt_save_CC"
+  CFLAGS="$lt_save_CFLAGS"
+fi # test "$_lt_disable_F77" != yes
+
+AC_LANG_POP
+])# _LT_LANG_F77_CONFIG
+
+
+# _LT_LANG_FC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for a Fortran compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_FC_CONFIG],
+[AC_LANG_PUSH(Fortran)
+
+if test -z "$FC" || test "X$FC" = "Xno"; then
+  _lt_disable_FC=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for fc test sources.
+ac_ext=${ac_fc_srcext-f}
+
+# Object file extension for compiled fc test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the FC compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_disable_FC" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC="$CC"
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${FC-"f95"}
+  CFLAGS=$FCFLAGS
+  compiler=$CC
+  GCC=$ac_cv_fc_compiler_gnu
+
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test "$can_build_shared" = "no" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test "$enable_shared" = yes && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+	  test "$enable_shared" = yes && enable_static=no
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test "$enable_shared" = yes || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)="$ac_cv_fc_compiler_gnu"
+    _LT_TAGVAR(LD, $1)="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+fi # test "$_lt_disable_FC" != yes
+
+AC_LANG_POP
+])# _LT_LANG_FC_CONFIG
+
+
+# _LT_LANG_GCJ_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Java Compiler compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_GCJ_CONFIG],
+[AC_REQUIRE([LT_PROG_GCJ])dnl
+AC_LANG_SAVE
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GCJ-"gcj"}
+CFLAGS=$GCJFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)="$LD"
+_LT_CC_BASENAME([$compiler])
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GCJ_CONFIG
+
+
+# _LT_LANG_GO_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Go compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_GO_CONFIG],
+[AC_REQUIRE([LT_PROG_GO])dnl
+AC_LANG_SAVE
+
+# Source file extension for Go test sources.
+ac_ext=go
+
+# Object file extension for compiled Go test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="package main; func main() { }"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='package main; func main() { }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GOC-"gccgo"}
+CFLAGS=$GOFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)="$LD"
+_LT_CC_BASENAME([$compiler])
+
+# Go did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GO_CONFIG
+
+
+# _LT_LANG_RC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for the Windows resource compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to `libtool'.
+m4_defun([_LT_LANG_RC_CONFIG],
+[AC_REQUIRE([LT_PROG_RC])dnl
+AC_LANG_SAVE
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code="$lt_simple_compile_test_code"
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC="$CC"
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+CFLAGS=
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_CC_BASENAME([$compiler])
+_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+
+if test -n "$compiler"; then
+  :
+  _LT_CONFIG($1)
+fi
+
+GCC=$lt_save_GCC
+AC_LANG_RESTORE
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_RC_CONFIG
+
+
+# LT_PROG_GCJ
+# -----------
+AC_DEFUN([LT_PROG_GCJ],
+[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
+  [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
+    [AC_CHECK_TOOL(GCJ, gcj,)
+      test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
+      AC_SUBST(GCJFLAGS)])])[]dnl
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
+
+
+# LT_PROG_GO
+# ----------
+AC_DEFUN([LT_PROG_GO],
+[AC_CHECK_TOOL(GOC, gccgo,)
+])
+
+
+# LT_PROG_RC
+# ----------
+AC_DEFUN([LT_PROG_RC],
+[AC_CHECK_TOOL(RC, windres,)
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_RC], [])
+
+
+# _LT_DECL_EGREP
+# --------------
+# If we don't have a new enough Autoconf to choose the best grep
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_EGREP],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_REQUIRE([AC_PROG_FGREP])dnl
+test -z "$GREP" && GREP=grep
+_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
+_LT_DECL([], [EGREP], [1], [An ERE matcher])
+_LT_DECL([], [FGREP], [1], [A literal string matcher])
+dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
+AC_SUBST([GREP])
+])
+
+
+# _LT_DECL_OBJDUMP
+# --------------
+# If we don't have a new enough Autoconf to choose the best objdump
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_OBJDUMP],
+[AC_CHECK_TOOL(OBJDUMP, objdump, false)
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
+AC_SUBST([OBJDUMP])
+])
+
+# _LT_DECL_DLLTOOL
+# ----------------
+# Ensure DLLTOOL variable is set.
+m4_defun([_LT_DECL_DLLTOOL],
+[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
+AC_SUBST([DLLTOOL])
+])
+
+# _LT_DECL_SED
+# ------------
+# Check for a fully-functional sed program, that truncates
+# as few characters as possible.  Prefer GNU sed if found.
+m4_defun([_LT_DECL_SED],
+[AC_PROG_SED
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
+_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
+    [Sed that helps us avoid accidentally triggering echo(1) options like -n])
+])# _LT_DECL_SED
+
+m4_ifndef([AC_PROG_SED], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+############################################################
+
+m4_defun([AC_PROG_SED],
+[AC_MSG_CHECKING([for a sed that does not truncate output])
+AC_CACHE_VAL(lt_cv_path_SED,
+[# Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for lt_ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+      fi
+    done
+  done
+done
+IFS=$as_save_IFS
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+  test ! -f $lt_ac_sed && continue
+  cat /dev/null > conftest.in
+  lt_ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+  # Check for GNU sed and select it if it is found.
+  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+    lt_cv_path_SED=$lt_ac_sed
+    break
+  fi
+  while true; do
+    cat conftest.in conftest.in >conftest.tmp
+    mv conftest.tmp conftest.in
+    cp conftest.in conftest.nl
+    echo >>conftest.nl
+    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+    cmp -s conftest.out conftest.nl || break
+    # 10000 chars as input seems more than enough
+    test $lt_ac_count -gt 10 && break
+    lt_ac_count=`expr $lt_ac_count + 1`
+    if test $lt_ac_count -gt $lt_ac_max; then
+      lt_ac_max=$lt_ac_count
+      lt_cv_path_SED=$lt_ac_sed
+    fi
+  done
+done
+])
+SED=$lt_cv_path_SED
+AC_SUBST([SED])
+AC_MSG_RESULT([$SED])
+])#AC_PROG_SED
+])#m4_ifndef
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_SED], [])
+
+
+# _LT_CHECK_SHELL_FEATURES
+# ------------------------
+# Find out whether the shell is Bourne or XSI compatible,
+# or has some other useful features.
+m4_defun([_LT_CHECK_SHELL_FEATURES],
+[AC_MSG_CHECKING([whether the shell understands some XSI constructs])
+# Try some XSI features
+xsi_shell=no
+( _lt_dummy="a/b/c"
+  test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
+      = c,a/b,b/c, \
+    && eval 'test $(( 1 + 1 )) -eq 2 \
+    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
+  && xsi_shell=yes
+AC_MSG_RESULT([$xsi_shell])
+_LT_CONFIG_LIBTOOL_INIT([xsi_shell='$xsi_shell'])
+
+AC_MSG_CHECKING([whether the shell understands "+="])
+lt_shell_append=no
+( foo=bar; set foo baz; eval "$[1]+=\$[2]" && test "$foo" = barbaz ) \
+    >/dev/null 2>&1 \
+  && lt_shell_append=yes
+AC_MSG_RESULT([$lt_shell_append])
+_LT_CONFIG_LIBTOOL_INIT([lt_shell_append='$lt_shell_append'])
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
+_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
+])# _LT_CHECK_SHELL_FEATURES
+
+
+# _LT_PROG_FUNCTION_REPLACE (FUNCNAME, REPLACEMENT-BODY)
+# ------------------------------------------------------
+# In `$cfgfile', look for function FUNCNAME delimited by `^FUNCNAME ()$' and
+# '^} FUNCNAME ', and replace its body with REPLACEMENT-BODY.
+m4_defun([_LT_PROG_FUNCTION_REPLACE],
+[dnl {
+sed -e '/^$1 ()$/,/^} # $1 /c\
+$1 ()\
+{\
+m4_bpatsubsts([$2], [$], [\\], [^\([	 ]\)], [\\\1])
+} # Extended-shell $1 implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+])
+
+
+# _LT_PROG_REPLACE_SHELLFNS
+# -------------------------
+# Replace existing portable implementations of several shell functions with
+# equivalent extended shell implementations where those features are available..
+m4_defun([_LT_PROG_REPLACE_SHELLFNS],
+[if test x"$xsi_shell" = xyes; then
+  _LT_PROG_FUNCTION_REPLACE([func_dirname], [dnl
+    case ${1} in
+      */*) func_dirname_result="${1%/*}${2}" ;;
+      *  ) func_dirname_result="${3}" ;;
+    esac])
+
+  _LT_PROG_FUNCTION_REPLACE([func_basename], [dnl
+    func_basename_result="${1##*/}"])
+
+  _LT_PROG_FUNCTION_REPLACE([func_dirname_and_basename], [dnl
+    case ${1} in
+      */*) func_dirname_result="${1%/*}${2}" ;;
+      *  ) func_dirname_result="${3}" ;;
+    esac
+    func_basename_result="${1##*/}"])
+
+  _LT_PROG_FUNCTION_REPLACE([func_stripname], [dnl
+    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+    # positional parameters, so assign one to ordinary parameter first.
+    func_stripname_result=${3}
+    func_stripname_result=${func_stripname_result#"${1}"}
+    func_stripname_result=${func_stripname_result%"${2}"}])
+
+  _LT_PROG_FUNCTION_REPLACE([func_split_long_opt], [dnl
+    func_split_long_opt_name=${1%%=*}
+    func_split_long_opt_arg=${1#*=}])
+
+  _LT_PROG_FUNCTION_REPLACE([func_split_short_opt], [dnl
+    func_split_short_opt_arg=${1#??}
+    func_split_short_opt_name=${1%"$func_split_short_opt_arg"}])
+
+  _LT_PROG_FUNCTION_REPLACE([func_lo2o], [dnl
+    case ${1} in
+      *.lo) func_lo2o_result=${1%.lo}.${objext} ;;
+      *)    func_lo2o_result=${1} ;;
+    esac])
+
+  _LT_PROG_FUNCTION_REPLACE([func_xform], [    func_xform_result=${1%.*}.lo])
+
+  _LT_PROG_FUNCTION_REPLACE([func_arith], [    func_arith_result=$(( $[*] ))])
+
+  _LT_PROG_FUNCTION_REPLACE([func_len], [    func_len_result=${#1}])
+fi
+
+if test x"$lt_shell_append" = xyes; then
+  _LT_PROG_FUNCTION_REPLACE([func_append], [    eval "${1}+=\\${2}"])
+
+  _LT_PROG_FUNCTION_REPLACE([func_append_quoted], [dnl
+    func_quote_for_eval "${2}"
+dnl m4 expansion turns \\\\ into \\, and then the shell eval turns that into \
+    eval "${1}+=\\\\ \\$func_quote_for_eval_result"])
+
+  # Save a `func_append' function call where possible by direct use of '+='
+  sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+else
+  # Save a `func_append' function call even when '+=' is not available
+  sed -e 's%func_append \([[a-zA-Z_]]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+fi
+
+if test x"$_lt_function_replace_fail" = x":"; then
+  AC_MSG_WARN([Unable to substitute extended shell functions in $ofile])
+fi
+])
+
+# _LT_PATH_CONVERSION_FUNCTIONS
+# -----------------------------
+# Determine which file name conversion functions should be used by
+# func_to_host_file (and, implicitly, by func_to_host_path).  These are needed
+# for certain cross-compile configurations and native mingw.
+m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_MSG_CHECKING([how to convert $build file names to $host format])
+AC_CACHE_VAL(lt_cv_to_host_file_cmd,
+[case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+])
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
+_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
+         [0], [convert $build file names to $host format])dnl
+
+AC_MSG_CHECKING([how to convert $build file names to toolchain format])
+AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
+[#assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+])
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
+_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
+         [0], [convert $build files to toolchain format])dnl
+])# _LT_PATH_CONVERSION_FUNCTIONS
diff --git a/build/ltoptions.m4 b/build/ltoptions.m4
new file mode 100644
index 00000000..5d9acd8e
--- /dev/null
+++ b/build/ltoptions.m4
@@ -0,0 +1,384 @@
+# Helper functions for option handling.                    -*- Autoconf -*-
+#
+#   Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation,
+#   Inc.
+#   Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 7 ltoptions.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
+
+
+# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
+# ------------------------------------------
+m4_define([_LT_MANGLE_OPTION],
+[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
+
+
+# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
+# ---------------------------------------
+# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
+# matching handler defined, dispatch to it.  Other OPTION-NAMEs are
+# saved as a flag.
+m4_define([_LT_SET_OPTION],
+[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
+m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
+        _LT_MANGLE_DEFUN([$1], [$2]),
+    [m4_warning([Unknown $1 option `$2'])])[]dnl
+])
+
+
+# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
+# ------------------------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+m4_define([_LT_IF_OPTION],
+[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
+
+
+# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
+# -------------------------------------------------------
+# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
+# are set.
+m4_define([_LT_UNLESS_OPTIONS],
+[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+	    [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
+		      [m4_define([$0_found])])])[]dnl
+m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
+])[]dnl
+])
+
+
+# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
+# ----------------------------------------
+# OPTION-LIST is a space-separated list of Libtool options associated
+# with MACRO-NAME.  If any OPTION has a matching handler declared with
+# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
+# the unknown option and exit.
+m4_defun([_LT_SET_OPTIONS],
+[# Set options
+m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+    [_LT_SET_OPTION([$1], _LT_Option)])
+
+m4_if([$1],[LT_INIT],[
+  dnl
+  dnl Simply set some default values (i.e off) if boolean options were not
+  dnl specified:
+  _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
+  ])
+  _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
+  ])
+  dnl
+  dnl If no reference was made to various pairs of opposing options, then
+  dnl we run the default mode handler for the pair.  For example, if neither
+  dnl `shared' nor `disable-shared' was passed, we enable building of shared
+  dnl archives by default:
+  _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
+  _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
+  		   [_LT_ENABLE_FAST_INSTALL])
+  ])
+])# _LT_SET_OPTIONS
+
+
+## --------------------------------- ##
+## Macros to handle LT_INIT options. ##
+## --------------------------------- ##
+
+# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
+# -----------------------------------------
+m4_define([_LT_MANGLE_DEFUN],
+[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
+
+
+# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
+# -----------------------------------------------
+m4_define([LT_OPTION_DEFINE],
+[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
+])# LT_OPTION_DEFINE
+
+
+# dlopen
+# ------
+LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
+])
+
+AU_DEFUN([AC_LIBTOOL_DLOPEN],
+[_LT_SET_OPTION([LT_INIT], [dlopen])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the `dlopen' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
+
+
+# win32-dll
+# ---------
+# Declare package support for building win32 dll's.
+LT_OPTION_DEFINE([LT_INIT], [win32-dll],
+[enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  AC_CHECK_TOOL(AS, as, false)
+  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+  ;;
+esac
+
+test -z "$AS" && AS=as
+_LT_DECL([], [AS],      [1], [Assembler program])dnl
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
+])# win32-dll
+
+AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+_LT_SET_OPTION([LT_INIT], [win32-dll])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the `win32-dll' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
+
+
+# _LT_ENABLE_SHARED([DEFAULT])
+# ----------------------------
+# implement the --enable-shared flag, and supports the `shared' and
+# `disable-shared' LT_INIT options.
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+m4_define([_LT_ENABLE_SHARED],
+[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([shared],
+    [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
+
+    _LT_DECL([build_libtool_libs], [enable_shared], [0],
+	[Whether or not to build shared libraries])
+])# _LT_ENABLE_SHARED
+
+LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
+])
+
+AC_DEFUN([AC_DISABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], [disable-shared])
+])
+
+AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
+AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_SHARED], [])
+dnl AC_DEFUN([AM_DISABLE_SHARED], [])
+
+
+
+# _LT_ENABLE_STATIC([DEFAULT])
+# ----------------------------
+# implement the --enable-static flag, and support the `static' and
+# `disable-static' LT_INIT options.
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+m4_define([_LT_ENABLE_STATIC],
+[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([static],
+    [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
+
+    _LT_DECL([build_old_libs], [enable_static], [0],
+	[Whether or not to build static libraries])
+])# _LT_ENABLE_STATIC
+
+LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
+])
+
+AC_DEFUN([AC_DISABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], [disable-static])
+])
+
+AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
+AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_STATIC], [])
+dnl AC_DEFUN([AM_DISABLE_STATIC], [])
+
+
+
+# _LT_ENABLE_FAST_INSTALL([DEFAULT])
+# ----------------------------------
+# implement the --enable-fast-install flag, and support the `fast-install'
+# and `disable-fast-install' LT_INIT options.
+# DEFAULT is either `yes' or `no'.  If omitted, it defaults to `yes'.
+m4_define([_LT_ENABLE_FAST_INSTALL],
+[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([fast-install],
+    [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+    [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
+
+_LT_DECL([fast_install], [enable_fast_install], [0],
+	 [Whether or not to optimize for fast installation])dnl
+])# _LT_ENABLE_FAST_INSTALL
+
+LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
+
+# Old names:
+AU_DEFUN([AC_ENABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the `fast-install' option into LT_INIT's first parameter.])
+])
+
+AU_DEFUN([AC_DISABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the `disable-fast-install' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
+dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+
+
+# _LT_WITH_PIC([MODE])
+# --------------------
+# implement the --with-pic flag, and support the `pic-only' and `no-pic'
+# LT_INIT options.
+# MODE is either `yes' or `no'.  If omitted, it defaults to `both'.
+m4_define([_LT_WITH_PIC],
+[AC_ARG_WITH([pic],
+    [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
+	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+    [lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for lt_pkg in $withval; do
+	IFS="$lt_save_ifs"
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac],
+    [pic_mode=default])
+
+test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
+
+_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
+])# _LT_WITH_PIC
+
+LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
+
+# Old name:
+AU_DEFUN([AC_LIBTOOL_PICMODE],
+[_LT_SET_OPTION([LT_INIT], [pic-only])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the `pic-only' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
+
+## ----------------- ##
+## LTDL_INIT Options ##
+## ----------------- ##
+
+m4_define([_LTDL_MODE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
+		 [m4_define([_LTDL_MODE], [nonrecursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [recursive],
+		 [m4_define([_LTDL_MODE], [recursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [subproject],
+		 [m4_define([_LTDL_MODE], [subproject])])
+
+m4_define([_LTDL_TYPE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [installable],
+		 [m4_define([_LTDL_TYPE], [installable])])
+LT_OPTION_DEFINE([LTDL_INIT], [convenience],
+		 [m4_define([_LTDL_TYPE], [convenience])])
diff --git a/build/ltsugar.m4 b/build/ltsugar.m4
new file mode 100644
index 00000000..9000a057
--- /dev/null
+++ b/build/ltsugar.m4
@@ -0,0 +1,123 @@
+# ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
+#
+# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 6 ltsugar.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+
+
+# lt_join(SEP, ARG1, [ARG2...])
+# -----------------------------
+# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
+# associated separator.
+# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
+# versions in m4sugar had bugs.
+m4_define([lt_join],
+[m4_if([$#], [1], [],
+       [$#], [2], [[$2]],
+       [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
+m4_define([_lt_join],
+[m4_if([$#$2], [2], [],
+       [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
+
+
+# lt_car(LIST)
+# lt_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+# These macros are necessary as long as will still need to support
+# Autoconf-2.59 which quotes differently.
+m4_define([lt_car], [[$1]])
+m4_define([lt_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+       [$#], 1, [],
+       [m4_dquote(m4_shift($@))])])
+m4_define([lt_unquote], $1)
+
+
+# lt_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
+# Note that neither SEPARATOR nor STRING are expanded; they are appended
+# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
+# No SEPARATOR is output if MACRO-NAME was previously undefined (different
+# than defined and empty).
+#
+# This macro is needed until we can rely on Autoconf 2.62, since earlier
+# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
+m4_define([lt_append],
+[m4_define([$1],
+	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
+
+
+
+# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+# ----------------------------------------------------------
+# Produce a SEP delimited list of all paired combinations of elements of
+# PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
+# has the form PREFIXmINFIXSUFFIXn.
+# Needed until we can rely on m4_combine added in Autoconf 2.62.
+m4_define([lt_combine],
+[m4_if(m4_eval([$# > 3]), [1],
+       [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
+[[m4_foreach([_Lt_prefix], [$2],
+	     [m4_foreach([_Lt_suffix],
+		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
+	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
+
+
+# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
+# -----------------------------------------------------------------------
+# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
+# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+m4_define([lt_if_append_uniq],
+[m4_ifdef([$1],
+	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
+		 [lt_append([$1], [$2], [$3])$4],
+		 [$5])],
+	  [lt_append([$1], [$2], [$3])$4])])
+
+
+# lt_dict_add(DICT, KEY, VALUE)
+# -----------------------------
+m4_define([lt_dict_add],
+[m4_define([$1($2)], [$3])])
+
+
+# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
+# --------------------------------------------
+m4_define([lt_dict_add_subkey],
+[m4_define([$1($2:$3)], [$4])])
+
+
+# lt_dict_fetch(DICT, KEY, [SUBKEY])
+# ----------------------------------
+m4_define([lt_dict_fetch],
+[m4_ifval([$3],
+	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
+    m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
+
+
+# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------------------
+m4_define([lt_if_dict_fetch],
+[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
+	[$5],
+    [$6])])
+
+
+# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
+# --------------------------------------------------------------
+m4_define([lt_dict_filter],
+[m4_if([$5], [], [],
+  [lt_join(m4_quote(m4_default([$4], [[, ]])),
+           lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
+		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
+])
diff --git a/build/ltversion.m4 b/build/ltversion.m4
new file mode 100644
index 00000000..07a8602d
--- /dev/null
+++ b/build/ltversion.m4
@@ -0,0 +1,23 @@
+# ltversion.m4 -- version numbers			-*- Autoconf -*-
+#
+#   Copyright (C) 2004 Free Software Foundation, Inc.
+#   Written by Scott James Remnant, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# @configure_input@
+
+# serial 3337 ltversion.m4
+# This file is part of GNU Libtool
+
+m4_define([LT_PACKAGE_VERSION], [2.4.2])
+m4_define([LT_PACKAGE_REVISION], [1.3337])
+
+AC_DEFUN([LTVERSION_VERSION],
+[macro_version='2.4.2'
+macro_revision='1.3337'
+_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
+_LT_DECL(, macro_revision, 0)
+])
diff --git a/build/lt~obsolete.m4 b/build/lt~obsolete.m4
new file mode 100644
index 00000000..c573da90
--- /dev/null
+++ b/build/lt~obsolete.m4
@@ -0,0 +1,98 @@
+# lt~obsolete.m4 -- aclocal satisfying obsolete definitions.    -*-Autoconf-*-
+#
+#   Copyright (C) 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
+#   Written by Scott James Remnant, 2004.
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 5 lt~obsolete.m4
+
+# These exist entirely to fool aclocal when bootstrapping libtool.
+#
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN)
+# which have later been changed to m4_define as they aren't part of the
+# exported API, or moved to Autoconf or Automake where they belong.
+#
+# The trouble is, aclocal is a bit thick.  It'll see the old AC_DEFUN
+# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
+# using a macro with the same name in our local m4/libtool.m4 it'll
+# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
+# and doesn't know about Autoconf macros at all.)
+#
+# So we provide this file, which has a silly filename so it's always
+# included after everything else.  This provides aclocal with the
+# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
+# because those macros already exist, or will be overwritten later.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6. 
+#
+# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
+# Yes, that means every name once taken will need to remain here until
+# we give up compatibility with versions before 1.7, at which point
+# we need to keep only those names which we still refer to.
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
+
+m4_ifndef([AC_LIBTOOL_LINKER_OPTION],	[AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
+m4_ifndef([AC_PROG_EGREP],		[AC_DEFUN([AC_PROG_EGREP])])
+m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_AC_SHELL_INIT],		[AC_DEFUN([_LT_AC_SHELL_INIT])])
+m4_ifndef([_LT_AC_SYS_LIBPATH_AIX],	[AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
+m4_ifndef([_LT_PROG_LTMAIN],		[AC_DEFUN([_LT_PROG_LTMAIN])])
+m4_ifndef([_LT_AC_TAGVAR],		[AC_DEFUN([_LT_AC_TAGVAR])])
+m4_ifndef([AC_LTDL_ENABLE_INSTALL],	[AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
+m4_ifndef([AC_LTDL_PREOPEN],		[AC_DEFUN([AC_LTDL_PREOPEN])])
+m4_ifndef([_LT_AC_SYS_COMPILER],	[AC_DEFUN([_LT_AC_SYS_COMPILER])])
+m4_ifndef([_LT_AC_LOCK],		[AC_DEFUN([_LT_AC_LOCK])])
+m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE],	[AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
+m4_ifndef([_LT_AC_TRY_DLOPEN_SELF],	[AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
+m4_ifndef([AC_LIBTOOL_PROG_CC_C_O],	[AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
+m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
+m4_ifndef([AC_LIBTOOL_OBJDIR],		[AC_DEFUN([AC_LIBTOOL_OBJDIR])])
+m4_ifndef([AC_LTDL_OBJDIR],		[AC_DEFUN([AC_LTDL_OBJDIR])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
+m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP],	[AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
+m4_ifndef([AC_PATH_MAGIC],		[AC_DEFUN([AC_PATH_MAGIC])])
+m4_ifndef([AC_PROG_LD_GNU],		[AC_DEFUN([AC_PROG_LD_GNU])])
+m4_ifndef([AC_PROG_LD_RELOAD_FLAG],	[AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
+m4_ifndef([AC_DEPLIBS_CHECK_METHOD],	[AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
+m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS],	[AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
+m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP],	[AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
+m4_ifndef([LT_AC_PROG_EGREP],		[AC_DEFUN([LT_AC_PROG_EGREP])])
+m4_ifndef([LT_AC_PROG_SED],		[AC_DEFUN([LT_AC_PROG_SED])])
+m4_ifndef([_LT_CC_BASENAME],		[AC_DEFUN([_LT_CC_BASENAME])])
+m4_ifndef([_LT_COMPILER_BOILERPLATE],	[AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
+m4_ifndef([_LT_LINKER_BOILERPLATE],	[AC_DEFUN([_LT_LINKER_BOILERPLATE])])
+m4_ifndef([_AC_PROG_LIBTOOL],		[AC_DEFUN([_AC_PROG_LIBTOOL])])
+m4_ifndef([AC_LIBTOOL_SETUP],		[AC_DEFUN([AC_LIBTOOL_SETUP])])
+m4_ifndef([_LT_AC_CHECK_DLFCN],		[AC_DEFUN([_LT_AC_CHECK_DLFCN])])
+m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER],	[AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
+m4_ifndef([_LT_AC_TAGCONFIG],		[AC_DEFUN([_LT_AC_TAGCONFIG])])
+m4_ifndef([AC_DISABLE_FAST_INSTALL],	[AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
+m4_ifndef([_LT_AC_LANG_CXX],		[AC_DEFUN([_LT_AC_LANG_CXX])])
+m4_ifndef([_LT_AC_LANG_F77],		[AC_DEFUN([_LT_AC_LANG_F77])])
+m4_ifndef([_LT_AC_LANG_GCJ],		[AC_DEFUN([_LT_AC_LANG_GCJ])])
+m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
+m4_ifndef([_LT_AC_LANG_C_CONFIG],	[AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
+m4_ifndef([_LT_AC_LANG_CXX_CONFIG],	[AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
+m4_ifndef([_LT_AC_LANG_F77_CONFIG],	[AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
+m4_ifndef([_LT_AC_LANG_GCJ_CONFIG],	[AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
+m4_ifndef([_LT_AC_LANG_RC_CONFIG],	[AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
+m4_ifndef([AC_LIBTOOL_CONFIG],		[AC_DEFUN([AC_LIBTOOL_CONFIG])])
+m4_ifndef([_LT_AC_FILE_LTDLL_C],	[AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
+m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS],	[AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
+m4_ifndef([_LT_AC_PROG_CXXCPP],		[AC_DEFUN([_LT_AC_PROG_CXXCPP])])
+m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS],	[AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
+m4_ifndef([_LT_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_PROG_F77],		[AC_DEFUN([_LT_PROG_F77])])
+m4_ifndef([_LT_PROG_FC],		[AC_DEFUN([_LT_PROG_FC])])
+m4_ifndef([_LT_PROG_CXX],		[AC_DEFUN([_LT_PROG_CXX])])
diff --git a/build/lzma.m4 b/build/lzma.m4
new file mode 100644
index 00000000..0be77790
--- /dev/null
+++ b/build/lzma.m4
@@ -0,0 +1,100 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl lzma.m4: Trafficserver's lzma autoconf macros
+dnl
+
+dnl
+dnl TS_CHECK_LZMA: look for lzma libraries and headers
+dnl
+AC_DEFUN([TS_CHECK_LZMA], [
+enable_lzma=no
+AC_ARG_WITH(lzma, [AC_HELP_STRING([--with-lzma=DIR],[use a specific lzma library])],
+[
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    lzma_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_lzma=yes
+      case "$withval" in
+      *":"*)
+        lzma_include="`echo $withval |sed -e 's/:.*$//'`"
+        lzma_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        AC_MSG_CHECKING(checking for lzma includes in $lzma_include libs in $lzma_ldflags )
+        ;;
+      *)
+        lzma_include="$withval/include"
+        lzma_ldflags="$withval/lib"
+        AC_MSG_CHECKING(checking for lzma includes in $withval)
+        ;;
+      esac
+    fi
+  fi
+])
+
+if test "x$lzma_base_dir" = "x"; then
+  AC_MSG_CHECKING([for lzma location])
+  AC_CACHE_VAL(ats_cv_lzma_dir,[
+  for dir in /usr/local /usr ; do
+    if test -d $dir && test -f $dir/include/lzma.h; then
+      ats_cv_lzma_dir=$dir
+      break
+    fi
+  done
+  ])
+  lzma_base_dir=$ats_cv_lzma_dir
+  if test "x$lzma_base_dir" = "x"; then
+    enable_lzma=no
+    AC_MSG_RESULT([not found])
+  else
+    enable_lzma=yes
+    lzma_include="$lzma_base_dir/include"
+    lzma_ldflags="$lzma_base_dir/lib"
+    AC_MSG_RESULT([$lzma_base_dir])
+  fi
+else
+  if test -d $lzma_include && test -d $lzma_ldflags && test -f $lzma_include/lzma.h; then
+    AC_MSG_RESULT([ok])
+  else
+    AC_MSG_RESULT([not found])
+  fi
+fi
+
+lzmah=0
+if test "$enable_lzma" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  lzma_have_headers=0
+  lzma_have_libs=0
+  if test "$lzma_base_dir" != "/usr"; then
+    TS_ADDTO(CPPFLAGS, [-I${lzma_include}])
+    TS_ADDTO(LDFLAGS, [-L${lzma_ldflags}])
+    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-R${lzma_ldflags}])
+  fi
+  AC_SEARCH_LIBS([lzma_code], [lzma], [lzma_have_libs=1])
+  if test "$lzma_have_libs" != "0"; then
+    TS_FLAG_HEADERS(lzma.h, [lzma_have_headers=1])
+  fi
+  if test "$lzma_have_headers" != "0"; then
+    AC_SUBST(LIBLZMA, [-llzma])
+  else
+    enable_lzma=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+AC_SUBST(lzmah)
+])
diff --git a/build/network.m4 b/build/network.m4
new file mode 100644
index 00000000..a71390e7
--- /dev/null
+++ b/build/network.m4
@@ -0,0 +1,125 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl -----------------------------------------------------------------
+dnl network.m4: Trafficserver's autoconf macros for testing network support
+dnl
+
+dnl
+dnl Checks the definition of gethostbyname_r and gethostbyaddr_r
+dnl which are different for glibc, solaris and assorted other operating
+dnl systems
+dnl
+dnl Note that this test is executed too early to see if we have all of
+dnl the headers.
+AC_DEFUN([TS_CHECK_GETHOSTBYNAME_R_STYLE], [
+
+dnl Try and compile a glibc2 gethostbyname_r piece of code, and set the
+dnl style of the routines to glibc2 on success
+AC_CACHE_CHECK([style of gethostbyname_r routine], ac_cv_gethostbyname_r_style,
+TS_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0,
+                          (char *) 0, 0, (struct hostent **) 0, &tmp);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_gethostbyname_r_style=glibc2, ac_cv_gethostbyname_r_style=none))
+
+if test "$ac_cv_gethostbyname_r_style" = "glibc2"; then
+  gethostbyname_r_glibc2=1
+  AC_DEFINE(GETHOSTBYNAME_R_GLIBC2, 1, [Define if gethostbyname_r has the glibc style])
+else
+  gethostbyname_r_glibc2=0
+fi
+
+AC_CACHE_CHECK([3rd argument to the gethostbyname_r routines], ac_cv_gethostbyname_r_arg,
+TS_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0,
+                          (struct hostent_data *) 0);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_gethostbyname_r_arg=hostent_data, ac_cv_gethostbyname_r_arg=char))
+
+AC_SUBST(gethostbyname_r_glibc2)
+])
+
+dnl
+dnl TS_CHECK_LOOPBACK_IFACE: try to figure out default loopback interface
+dnl
+AC_DEFUN([TS_CHECK_LOOPBACK_IFACE], [
+default_loopback_iface=""
+AC_MSG_CHECKING([for loopback network interface])
+case $host_os in
+  linux*)
+    default_loopback_iface=lo
+  ;;
+darwin* | freebsd* | solaris*)
+  default_loopback_iface=lo0
+  ;;
+esac
+AC_MSG_RESULT([$default_loopback_iface])
+AC_SUBST([default_loopback_iface])
+])
+
+dnl
+dnl Check on IN6_IS_ADDR_UNSPECIFIED. We can't just check if it is defined
+dnl because some releases of FreeBSD and Solaris define it incorrectly.
+dnl
+AC_DEFUN([TS_CHECK_MACRO_IN6_IS_ADDR_UNSPECIFIED], [
+AC_CACHE_CHECK([IN6_IS_ADDR_UNSPECIFIED macro works], ac_cv_macro_in6_is_addr_unspecified,
+TS_TRY_COMPILE_NO_WARNING([
+#include <netinet/in.h>
+],[
+  (void) IN6_IS_ADDR_UNSPECIFIED(0);
+], ac_cv_macro_in6_is_addr_unspecified=yes, ac_cv_macro_in6_is_addr_unspecified=no))
+
+has_in6_is_addr_unspecified=1
+if test "x$ac_cv_macro_in6_is_addr_unspecified" = "xno"; then
+  has_in6_is_addr_unspecified=0
+fi
+AC_SUBST(has_in6_is_addr_unspecified)
+])
diff --git a/build/pcre.m4 b/build/pcre.m4
new file mode 100644
index 00000000..ba7ae3a4
--- /dev/null
+++ b/build/pcre.m4
@@ -0,0 +1,114 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl pcre.m4: Trafficserver's pcre autoconf macros
+dnl
+
+dnl
+dnl TS_CHECK_PCRE: look for pcre libraries and headers
+dnl
+AC_DEFUN([TS_CHECK_PCRE], [
+enable_pcre=no
+AC_ARG_WITH(pcre, [AC_HELP_STRING([--with-pcre=DIR],[use a specific pcre library])],
+[
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    pcre_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_pcre=yes
+      case "$withval" in
+      *":"*)
+        pcre_include="`echo $withval |sed -e 's/:.*$//'`"
+        pcre_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        AC_MSG_CHECKING(checking for pcre includes in $pcre_include libs in $pcre_ldflags )
+        ;;
+      *)
+        pcre_include="$withval/include"
+        pcre_ldflags="$withval/lib"
+        AC_MSG_CHECKING(checking for pcre includes in $withval)
+        ;;
+      esac
+    fi
+  fi
+],
+[
+  AC_CHECK_PROG(PCRE_CONFIG, pcre-config, pcre-config)
+  if test "x$PCRE_CONFIG" != "x"; then
+    enable_pcre=yes
+    pcre_base_dir="`$PCRE_CONFIG --prefix`"
+    pcre_include="`$PCRE_CONFIG --cflags | sed -es/-I//`"
+    pcre_ldflags="`$PCRE_CONFIG --libs | sed -es/-lpcre// -es/-L//`"
+  fi
+])
+
+if test "x$pcre_base_dir" = "x"; then
+  AC_MSG_CHECKING([for pcre location])
+  AC_CACHE_VAL(ats_cv_pcre_dir,[
+  for dir in /usr/local /usr ; do
+    if test -d $dir && ( test -f $dir/include/pcre.h || test -f $dir/include/pcre/pcre.h ); then
+      ats_cv_pcre_dir=$dir
+      break
+    fi
+  done
+  ])
+  pcre_base_dir=$ats_cv_pcre_dir
+  if test "x$pcre_base_dir" = "x"; then
+    enable_pcre=no
+    AC_MSG_RESULT([not found])
+  else
+    enable_pcre=yes
+    pcre_include="$pcre_base_dir/include"
+    pcre_ldflags="$pcre_base_dir/lib"
+    AC_MSG_RESULT([$pcre_base_dir])
+  fi
+else
+  AC_MSG_CHECKING(for pcre headers in $pcre_include)
+  if test -d $pcre_include && test -d $pcre_ldflags && ( test -f $pcre_include/pcre.h || test -f $pcre_include/pcre/pcre.h ); then
+    AC_MSG_RESULT([ok])
+  else
+    AC_MSG_RESULT([not found])
+  fi
+fi
+
+pcreh=0
+pcre_pcreh=0
+if test "$enable_pcre" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  pcre_have_headers=0
+  pcre_have_libs=0
+  if test "$pcre_base_dir" != "/usr"; then
+    TS_ADDTO(CPPFLAGS, [-I${pcre_include}])
+    TS_ADDTO(LDFLAGS, [-L${pcre_ldflags}])
+    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-R${pcre_ldflags}])
+  fi
+  AC_SEARCH_LIBS([pcre_exec], [pcre], [pcre_have_libs=1])
+  if test "$pcre_have_libs" != "0"; then
+    TS_FLAG_HEADERS(pcre.h, [pcre_have_headers=1])
+    TS_FLAG_HEADERS(pcre/pcre.h, [pcre_have_headers=1])
+  fi
+  if test "$pcre_have_headers" != "0"; then
+    AC_DEFINE(HAVE_LIBPCRE,1,[Compiling with pcre support])
+    AC_SUBST(LIBPCRE, [-lpcre])
+  else
+    enable_pcre=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+AC_SUBST(pcreh)
+AC_SUBST(pcre_pcreh)
+])
diff --git a/build/pkg.m4 b/build/pkg.m4
new file mode 100644
index 00000000..f26f84c9
--- /dev/null
+++ b/build/pkg.m4
@@ -0,0 +1,199 @@
+# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+# serial 1 (pkg-config-0.24)
+# 
+# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# PKG_PROG_PKG_CONFIG([MIN-VERSION])
+# ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
+m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
+AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
+AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=m4_default([$1], [0.9.0])
+	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		AC_MSG_RESULT([yes])
+	else
+		AC_MSG_RESULT([no])
+		PKG_CONFIG=""
+	fi
+fi[]dnl
+])# PKG_PROG_PKG_CONFIG
+
+# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# Check to see whether a particular set of modules exists.  Similar
+# to PKG_CHECK_MODULES(), but does not set variables or print errors.
+#
+# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+# only at the first occurence in configure.ac, so if the first place
+# it's called might be skipped (such as if it is within an "if", you
+# have to call PKG_CHECK_EXISTS manually
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+  m4_default([$2], [:])
+m4_ifvaln([$3], [else
+  $3])dnl
+fi])
+
+# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+# ---------------------------------------------
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+    pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+    PKG_CHECK_EXISTS([$3],
+                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes ],
+		     [pkg_failed=yes])
+ else
+    pkg_failed=untried
+fi[]dnl
+])# _PKG_CONFIG
+
+# _PKG_SHORT_ERRORS_SUPPORTED
+# -----------------------------
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi[]dnl
+])# _PKG_SHORT_ERRORS_SUPPORTED
+
+
+# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+# [ACTION-IF-NOT-FOUND])
+#
+#
+# Note that if there is a possibility the first call to
+# PKG_CHECK_MODULES might not happen, you should be sure to include an
+# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+#
+#
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+   	AC_MSG_RESULT([no])
+        _PKG_SHORT_ERRORS_SUPPORTED
+        if test $_pkg_short_errors_supported = yes; then
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+        else 
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+	m4_default([$4], [AC_MSG_ERROR(
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT])[]dnl
+        ])
+elif test $pkg_failed = untried; then
+     	AC_MSG_RESULT([no])
+	m4_default([$4], [AC_MSG_FAILURE(
+[The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
+        ])
+else
+	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+        AC_MSG_RESULT([yes])
+	$3
+fi[]dnl
+])# PKG_CHECK_MODULES
+
+
+# PKG_INSTALLDIR(DIRECTORY)
+# -------------------------
+# Substitutes the variable pkgconfigdir as the location where a module
+# should install pkg-config .pc files. By default the directory is
+# $libdir/pkgconfig, but the default can be changed by passing
+# DIRECTORY. The user can override through the --with-pkgconfigdir
+# parameter.
+AC_DEFUN([PKG_INSTALLDIR],
+[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
+m4_pushdef([pkg_description],
+    [pkg-config installation directory @<:@]pkg_default[@:>@])
+AC_ARG_WITH([pkgconfigdir],
+    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
+    [with_pkgconfigdir=]pkg_default)
+AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
+m4_popdef([pkg_default])
+m4_popdef([pkg_description])
+]) dnl PKG_INSTALLDIR
+
+
+# PKG_NOARCH_INSTALLDIR(DIRECTORY)
+# -------------------------
+# Substitutes the variable noarch_pkgconfigdir as the location where a
+# module should install arch-independent pkg-config .pc files. By
+# default the directory is $datadir/pkgconfig, but the default can be
+# changed by passing DIRECTORY. The user can override through the
+# --with-noarch-pkgconfigdir parameter.
+AC_DEFUN([PKG_NOARCH_INSTALLDIR],
+[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
+m4_pushdef([pkg_description],
+    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
+AC_ARG_WITH([noarch-pkgconfigdir],
+    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
+    [with_noarch_pkgconfigdir=]pkg_default)
+AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
+m4_popdef([pkg_default])
+m4_popdef([pkg_description])
+]) dnl PKG_NOARCH_INSTALLDIR
diff --git a/build/plugins.mk b/build/plugins.mk
new file mode 100644
index 00000000..c2844059
--- /dev/null
+++ b/build/plugins.mk
@@ -0,0 +1,37 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglibdir = $(pkglibexecdir)
diff --git a/build/tcl.m4 b/build/tcl.m4
new file mode 100644
index 00000000..5113cd86
--- /dev/null
+++ b/build/tcl.m4
@@ -0,0 +1,3306 @@
+#------------------------------------------------------------------------
+# SC_PATH_TCLCONFIG --
+#
+#	Locate the tclConfig.sh file and perform a sanity check on
+#	the Tcl compile flags
+#
+# Arguments:
+#	none
+#
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--with-tcl=...
+#
+#	Defines the following vars:
+#		TCL_BIN_DIR	Full path to the directory containing
+#				the tclConfig.sh file
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_TCLCONFIG], [
+    #
+    # Ok, lets find the tcl configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tcl
+    #
+
+    if test x"${no_tcl}" = x ; then
+	# we reset no_tcl in case something fails here
+	no_tcl=true
+	AC_ARG_WITH(tcl,
+	    AC_HELP_STRING([--with-tcl],
+		[directory containing tcl configuration (tclConfig.sh)]),
+	    with_tclconfig="${withval}")
+	AC_MSG_CHECKING([for Tcl configuration])
+	AC_CACHE_VAL(ac_cv_c_tclconfig,[
+
+	    # First check to see if --with-tcl was specified.
+	    if test x"${with_tclconfig}" != x ; then
+		case "${with_tclconfig}" in
+		    */tclConfig.sh )
+			if test -f "${with_tclconfig}"; then
+			    AC_MSG_WARN([--with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself])
+			    with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
+			fi ;;
+		esac
+		if test -f "${with_tclconfig}/tclConfig.sh" ; then
+		    ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
+		else
+		    AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
+		fi
+	    fi
+
+	    # then check for a private Tcl installation
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in \
+			../tcl \
+			`ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../tcl \
+			`ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../../tcl \
+			`ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/unix/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # on Darwin, check in Framework installation locations
+	    if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tclconfig}" = x ; then
+		for i in "`xcrun --show-sdk-path 2>/dev/null`/usr/lib" \
+                        `ls -d ~/Library/Frameworks 2>/dev/null` \
+			`ls -d /Library/Frameworks 2>/dev/null` \
+			`ls -d /Network/Library/Frameworks 2>/dev/null` \
+			`ls -d /System/Library/Frameworks 2>/dev/null` \
+			; do
+		    if test -f "$i/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
+			break
+		    elif test -f "$i/Tcl.framework/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few common install locations
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in `ls -d ${libdir} 2>/dev/null` \
+			`ls -d ${exec_prefix}/lib 2>/dev/null` \
+			`ls -dr ${exec_prefix}/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ${exec_prefix}/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ${exec_prefix}/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			`ls -d ${prefix}/lib 2>/dev/null` \
+			`ls -dr ${prefix}/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ${prefix}/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ${prefix}/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			`ls -d /usr/local/lib 2>/dev/null` \
+			`ls -dr /usr/local/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr /usr/local/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr /usr/local/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
+			`ls -dr /usr/lib64/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr /usr/lib64/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr /usr/lib64/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			`ls -d /usr/contrib/lib 2>/dev/null` \
+			`ls -dr /usr/contrib/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr /usr/contrib/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr /usr/contrib/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			`ls -d /usr/lib 2>/dev/null` \
+			`ls -dr /usr/lib/tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr /usr/lib/tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr /usr/lib/tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+			; do
+		    if test -f "$i/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few other private locations
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in \
+			${srcdir}/../tcl \
+			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/unix/tclConfig.sh" ; then
+		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+		    break
+		fi
+		done
+	    fi
+	])
+
+	if test x"${ac_cv_c_tclconfig}" = x ; then
+	    TCL_BIN_DIR="# no Tcl configs found"
+	    AC_MSG_ERROR([Can't find Tcl configuration, install the TCL dev package])
+	else
+	    no_tcl=
+	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
+	    AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
+	fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_PATH_TKCONFIG --
+#
+#	Locate the tkConfig.sh file
+#
+# Arguments:
+#	none
+#
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--with-tk=...
+#
+#	Defines the following vars:
+#		TK_BIN_DIR	Full path to the directory containing
+#				the tkConfig.sh file
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_TKCONFIG], [
+    #
+    # Ok, lets find the tk configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tk
+    #
+
+    if test x"${no_tk}" = x ; then
+	# we reset no_tk in case something fails here
+	no_tk=true
+	AC_ARG_WITH(tk,
+	    AC_HELP_STRING([--with-tk],
+		[directory containing tk configuration (tkConfig.sh)]),
+	    with_tkconfig="${withval}")
+	AC_MSG_CHECKING([for Tk configuration])
+	AC_CACHE_VAL(ac_cv_c_tkconfig,[
+
+	    # First check to see if --with-tkconfig was specified.
+	    if test x"${with_tkconfig}" != x ; then
+		case "${with_tkconfig}" in
+		    */tkConfig.sh )
+			if test -f "${with_tkconfig}"; then
+			    AC_MSG_WARN([--with-tk argument should refer to directory containing tkConfig.sh, not to tkConfig.sh itself])
+			    with_tkconfig="`echo "${with_tkconfig}" | sed 's!/tkConfig\.sh$!!'`"
+			fi ;;
+		esac
+		if test -f "${with_tkconfig}/tkConfig.sh" ; then
+		    ac_cv_c_tkconfig="`(cd "${with_tkconfig}"; pwd)`"
+		else
+		    AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
+		fi
+	    fi
+
+	    # then check for a private Tk library
+	    if test x"${ac_cv_c_tkconfig}" = x ; then
+		for i in \
+			../tk \
+			`ls -dr ../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../tk \
+			`ls -dr ../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
+			../../../tk \
+			`ls -dr ../../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/unix/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # on Darwin, check in Framework installation locations
+	    if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tkconfig}" = x ; then
+		for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
+			`ls -d /Library/Frameworks 2>/dev/null` \
+			`ls -d /Network/Library/Frameworks 2>/dev/null` \
+			`ls -d /System/Library/Frameworks 2>/dev/null` \
+			; do
+		    if test -f "$i/Tk.framework/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i/Tk.framework; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few common install locations
+	    if test x"${ac_cv_c_tkconfig}" = x ; then
+		for i in `ls -d ${libdir} 2>/dev/null` \
+			`ls -d ${exec_prefix}/lib 2>/dev/null` \
+			`ls -d ${prefix}/lib 2>/dev/null` \
+			`ls -d /usr/local/lib 2>/dev/null` \
+			`ls -d /usr/contrib/lib 2>/dev/null` \
+			`ls -d /usr/lib 2>/dev/null` \
+			; do
+		    if test -f "$i/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few other private locations
+	    if test x"${ac_cv_c_tkconfig}" = x ; then
+		for i in \
+			${srcdir}/../tk \
+			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
+			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
+		    if test -f "$i/unix/tkConfig.sh" ; then
+			ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
+			break
+		    fi
+		done
+	    fi
+	])
+
+	if test x"${ac_cv_c_tkconfig}" = x ; then
+	    TK_BIN_DIR="# no Tk configs found"
+	    AC_MSG_WARN([Can't find Tk configuration definitions])
+	    exit 0
+	else
+	    no_tk=
+	    TK_BIN_DIR="${ac_cv_c_tkconfig}"
+	    AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
+	fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_LOAD_TCLCONFIG --
+#
+#	Load the tclConfig.sh file
+#
+# Arguments:
+#	
+#	Requires the following vars to be set:
+#		TCL_BIN_DIR
+#
+# Results:
+#
+#	Subst the following vars:
+#		TCL_BIN_DIR
+#		TCL_SRC_DIR
+#		TCL_LIB_FILE
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_LOAD_TCLCONFIG], [
+    AC_MSG_CHECKING([for existence of ${TCL_BIN_DIR}/tclConfig.sh])
+
+    if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
+        AC_MSG_RESULT([loading])
+	. "${TCL_BIN_DIR}/tclConfig.sh"
+    else
+        AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
+    fi
+
+    # eval is required to do the TCL_DBGX substitution
+    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
+    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
+
+    # If the TCL_BIN_DIR is the build directory (not the install directory),
+    # then set the common variable name to the value of the build variables.
+    # For example, the variable TCL_LIB_SPEC will be set to the value
+    # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
+    # instead of TCL_BUILD_LIB_SPEC since it will work with both an
+    # installed and uninstalled version of Tcl.
+    if test -f "${TCL_BIN_DIR}/Makefile" ; then
+        TCL_LIB_SPEC="${TCL_BUILD_LIB_SPEC}"
+        TCL_STUB_LIB_SPEC="${TCL_BUILD_STUB_LIB_SPEC}"
+        TCL_STUB_LIB_PATH="${TCL_BUILD_STUB_LIB_PATH}"
+    elif test "`uname -s`" = "Darwin"; then
+	# If Tcl was built as a framework, attempt to use the libraries
+	# from the framework at the given location so that linking works
+	# against Tcl.framework installed in an arbitary location.
+	case ${TCL_DEFS} in
+	    *TCL_FRAMEWORK*)
+		if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
+		    for i in "`cd "${TCL_BIN_DIR}"; pwd`" \
+			     "`cd "${TCL_BIN_DIR}"/../..; pwd`"; do
+			if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
+			    TCL_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TCL_LIB_FILE}"
+			    break
+			fi
+		    done
+		fi
+		if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
+		    TCL_STUB_LIB_SPEC="-L`echo "${TCL_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TCL_STUB_LIB_FLAG}"
+		    TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
+		fi
+		;;
+	esac
+    fi
+
+    # eval is required to do the TCL_DBGX substitution
+    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
+    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
+    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
+    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
+
+    AC_SUBST(TCL_VERSION)
+    AC_SUBST(TCL_PATCH_LEVEL)
+    AC_SUBST(TCL_BIN_DIR)
+    AC_SUBST(TCL_SRC_DIR)
+
+    AC_SUBST(TCL_LIB_FILE)
+    AC_SUBST(TCL_LIB_FLAG)
+    AC_SUBST(TCL_LIB_SPEC)
+
+    AC_SUBST(TCL_STUB_LIB_FILE)
+    AC_SUBST(TCL_STUB_LIB_FLAG)
+    AC_SUBST(TCL_STUB_LIB_SPEC)
+])
+
+#------------------------------------------------------------------------
+# SC_LOAD_TKCONFIG --
+#
+#	Load the tkConfig.sh file
+#
+# Arguments:
+#	
+#	Requires the following vars to be set:
+#		TK_BIN_DIR
+#
+# Results:
+#
+#	Sets the following vars that should be in tkConfig.sh:
+#		TK_BIN_DIR
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_LOAD_TKCONFIG], [
+    AC_MSG_CHECKING([for existence of ${TK_BIN_DIR}/tkConfig.sh])
+
+    if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
+        AC_MSG_RESULT([loading])
+	. "${TK_BIN_DIR}/tkConfig.sh"
+    else
+        AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
+    fi
+
+    # eval is required to do the TK_DBGX substitution
+    eval "TK_LIB_FILE=\"${TK_LIB_FILE}\""
+    eval "TK_STUB_LIB_FILE=\"${TK_STUB_LIB_FILE}\""
+
+    # If the TK_BIN_DIR is the build directory (not the install directory),
+    # then set the common variable name to the value of the build variables.
+    # For example, the variable TK_LIB_SPEC will be set to the value
+    # of TK_BUILD_LIB_SPEC. An extension should make use of TK_LIB_SPEC
+    # instead of TK_BUILD_LIB_SPEC since it will work with both an
+    # installed and uninstalled version of Tcl.
+    if test -f "${TK_BIN_DIR}/Makefile" ; then
+        TK_LIB_SPEC="${TK_BUILD_LIB_SPEC}"
+        TK_STUB_LIB_SPEC="${TK_BUILD_STUB_LIB_SPEC}"
+        TK_STUB_LIB_PATH="${TK_BUILD_STUB_LIB_PATH}"
+    elif test "`uname -s`" = "Darwin"; then
+	# If Tk was built as a framework, attempt to use the libraries
+	# from the framework at the given location so that linking works
+	# against Tk.framework installed in an arbitary location.
+	case ${TK_DEFS} in
+	    *TK_FRAMEWORK*)
+		if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
+		    for i in "`cd "${TK_BIN_DIR}"; pwd`" \
+			     "`cd "${TK_BIN_DIR}"/../..; pwd`"; do
+			if test "`basename "$i"`" = "${TK_LIB_FILE}.framework"; then
+			    TK_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TK_LIB_FILE}"
+			    break
+			fi
+		    done
+		fi
+		if test -f "${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"; then
+		    TK_STUB_LIB_SPEC="-L` echo "${TK_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TK_STUB_LIB_FLAG}"
+		    TK_STUB_LIB_PATH="${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"
+		fi
+		;;
+	esac
+    fi
+
+    # eval is required to do the TK_DBGX substitution
+    eval "TK_LIB_FLAG=\"${TK_LIB_FLAG}\""
+    eval "TK_LIB_SPEC=\"${TK_LIB_SPEC}\""
+    eval "TK_STUB_LIB_FLAG=\"${TK_STUB_LIB_FLAG}\""
+    eval "TK_STUB_LIB_SPEC=\"${TK_STUB_LIB_SPEC}\""
+
+    AC_SUBST(TK_VERSION)
+    AC_SUBST(TK_BIN_DIR)
+    AC_SUBST(TK_SRC_DIR)
+
+    AC_SUBST(TK_LIB_FILE)
+    AC_SUBST(TK_LIB_FLAG)
+    AC_SUBST(TK_LIB_SPEC)
+
+    AC_SUBST(TK_STUB_LIB_FILE)
+    AC_SUBST(TK_STUB_LIB_FLAG)
+    AC_SUBST(TK_STUB_LIB_SPEC)
+])
+
+#------------------------------------------------------------------------
+# SC_PROG_TCLSH
+#	Locate a tclsh shell installed on the system path. This macro
+#	will only find a Tcl shell that already exists on the system.
+#	It will not find a Tcl shell in the Tcl build directory or
+#	a Tcl shell that has been installed from the Tcl build directory.
+#	If a Tcl shell can't be located on the PATH, then TCLSH_PROG will
+#	be set to "". Extensions should take care not to create Makefile
+#	rules that are run by default and depend on TCLSH_PROG. An
+#	extension can't assume that an executable Tcl shell exists at
+#	build time.
+#
+# Arguments
+#	none
+#
+# Results
+#	Subst's the following values:
+#		TCLSH_PROG
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_PROG_TCLSH], [
+    AC_MSG_CHECKING([for tclsh])
+    AC_CACHE_VAL(ac_cv_path_tclsh, [
+	search_path=`echo ${PATH} | sed -e 's/:/ /g'`
+	for dir in $search_path ; do
+	    for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
+		    `ls -r $dir/tclsh* 2> /dev/null` ; do
+		if test x"$ac_cv_path_tclsh" = x ; then
+		    if test -f "$j" ; then
+			ac_cv_path_tclsh=$j
+			break
+		    fi
+		fi
+	    done
+	done
+    ])
+
+    if test -f "$ac_cv_path_tclsh" ; then
+	TCLSH_PROG="$ac_cv_path_tclsh"
+	AC_MSG_RESULT([$TCLSH_PROG])
+    else
+	# It is not an error if an installed version of Tcl can't be located.
+	TCLSH_PROG=""
+	AC_MSG_RESULT([No tclsh found on PATH])
+    fi
+    AC_SUBST(TCLSH_PROG)
+])
+
+#------------------------------------------------------------------------
+# SC_BUILD_TCLSH
+#	Determine the fully qualified path name of the tclsh executable
+#	in the Tcl build directory. This macro will correctly determine
+#	the name of the tclsh executable even if tclsh has not yet
+#	been built in the build directory. The build tclsh must be used
+#	when running tests from an extension build directory. It is not
+#	correct to use the TCLSH_PROG in cases like this.
+#
+# Arguments
+#	none
+#
+# Results
+#	Subst's the following values:
+#		BUILD_TCLSH
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_BUILD_TCLSH], [
+    AC_MSG_CHECKING([for tclsh in Tcl build directory])
+    BUILD_TCLSH="${TCL_BIN_DIR}"/tclsh
+    AC_MSG_RESULT([$BUILD_TCLSH])
+    AC_SUBST(BUILD_TCLSH)
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_SHARED --
+#
+#	Allows the building of shared libraries
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-shared=yes|no
+#
+#	Defines the following vars:
+#		STATIC_BUILD	Used for building import/export libraries
+#				on Windows.
+#
+#	Sets the following vars:
+#		SHARED_BUILD	Value of 1 or 0
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_SHARED], [
+    AC_MSG_CHECKING([how to build libraries])
+    AC_ARG_ENABLE(shared,
+	AC_HELP_STRING([--enable-shared],
+	    [build and link with shared libraries (default: on)]),
+	[tcl_ok=$enableval], [tcl_ok=yes])
+
+    if test "${enable_shared+set}" = set; then
+	enableval="$enable_shared"
+	tcl_ok=$enableval
+    else
+	tcl_ok=yes
+    fi
+
+    if test "$tcl_ok" = "yes" ; then
+	AC_MSG_RESULT([shared])
+	SHARED_BUILD=1
+    else
+	AC_MSG_RESULT([static])
+	SHARED_BUILD=0
+	AC_DEFINE(STATIC_BUILD, 1, [Is this a static build?])
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_FRAMEWORK --
+#
+#	Allows the building of shared libraries into frameworks
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-framework=yes|no
+#
+#	Sets the following vars:
+#		FRAMEWORK_BUILD	Value of 1 or 0
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_FRAMEWORK], [
+    if test "`uname -s`" = "Darwin" ; then
+	AC_MSG_CHECKING([how to package libraries])
+	AC_ARG_ENABLE(framework,
+	    AC_HELP_STRING([--enable-framework],
+		[package shared libraries in MacOSX frameworks (default: off)]),
+	    [enable_framework=$enableval], [enable_framework=no])
+	if test $enable_framework = yes; then
+	    if test $SHARED_BUILD = 0; then
+		AC_MSG_WARN([Frameworks can only be built if --enable-shared is yes])
+		enable_framework=no
+	    fi
+	    if test $tcl_corefoundation = no; then
+		AC_MSG_WARN([Frameworks can only be used when CoreFoundation is available])
+		enable_framework=no
+	    fi
+	fi
+	if test $enable_framework = yes; then
+	    AC_MSG_RESULT([framework])
+	    FRAMEWORK_BUILD=1
+	else
+	    if test $SHARED_BUILD = 1; then
+		AC_MSG_RESULT([shared library])
+	    else
+		AC_MSG_RESULT([static library])
+	    fi
+	    FRAMEWORK_BUILD=0
+	fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_THREADS --
+#
+#	Specify if thread support should be enabled
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-threads
+#
+#	Sets the following vars:
+#		THREADS_LIBS	Thread library(s)
+#
+#	Defines the following vars:
+#		TCL_THREADS
+#		_REENTRANT
+#		_THREAD_SAFE
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_THREADS], [
+    AC_ARG_ENABLE(threads,
+	AC_HELP_STRING([--enable-threads],
+	    [build with threads (default: off)]),
+	[tcl_ok=$enableval], [tcl_ok=no])
+
+    if test "${TCL_THREADS}" = 1; then
+	tcl_threaded_core=1;
+    fi
+
+    if test "$tcl_ok" = "yes" -o "${TCL_THREADS}" = 1; then
+	TCL_THREADS=1
+	# USE_THREAD_ALLOC tells us to try the special thread-based
+	# allocator that significantly reduces lock contention
+	AC_DEFINE(USE_THREAD_ALLOC, 1,
+	    [Do we want to use the threaded memory allocator?])
+	AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+	if test "`uname -s`" = "SunOS" ; then
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+		    [Do we really want to follow the standard? Yes we do!])
+	fi
+	AC_DEFINE(_THREAD_SAFE, 1, [Do we want the thread-safe OS API?])
+	AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
+	if test "$tcl_ok" = "no"; then
+	    # Check a little harder for __pthread_mutex_init in the same
+	    # library, as some systems hide it there until pthread.h is
+	    # defined.  We could alternatively do an AC_TRY_COMPILE with
+	    # pthread.h, but that will work with libpthread really doesn't
+	    # exist, like AIX 4.2.  [Bug: 4359]
+	    AC_CHECK_LIB(pthread, __pthread_mutex_init,
+		tcl_ok=yes, tcl_ok=no)
+	fi
+
+	if test "$tcl_ok" = "yes"; then
+	    # The space is needed
+	    THREADS_LIBS=" -lpthread"
+	else
+	    AC_CHECK_LIB(pthreads, pthread_mutex_init,
+		tcl_ok=yes, tcl_ok=no)
+	    if test "$tcl_ok" = "yes"; then
+		# The space is needed
+		THREADS_LIBS=" -lpthreads"
+	    else
+		AC_CHECK_LIB(c, pthread_mutex_init,
+		    tcl_ok=yes, tcl_ok=no)
+		if test "$tcl_ok" = "no"; then
+		    AC_CHECK_LIB(c_r, pthread_mutex_init,
+			tcl_ok=yes, tcl_ok=no)
+		    if test "$tcl_ok" = "yes"; then
+			# The space is needed
+			THREADS_LIBS=" -pthread"
+		    else
+			TCL_THREADS=0
+			AC_MSG_WARN([Don't know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...])
+		    fi
+		fi
+	    fi
+	fi
+
+	# Does the pthread-implementation provide
+	# 'pthread_attr_setstacksize' ?
+
+	ac_saved_libs=$LIBS
+	LIBS="$LIBS $THREADS_LIBS"
+	AC_CHECK_FUNCS(pthread_attr_setstacksize)
+	AC_CHECK_FUNC(pthread_attr_get_np,tcl_ok=yes,tcl_ok=no)
+	if test $tcl_ok = yes ; then
+	    AC_DEFINE(HAVE_PTHREAD_ATTR_GET_NP, 1,
+		[Do we want a BSD-like thread-attribute interface?])
+	    AC_CACHE_CHECK([for pthread_attr_get_np declaration],
+		tcl_cv_grep_pthread_attr_get_np, [
+		AC_EGREP_HEADER(pthread_attr_get_np, pthread.h,
+		    tcl_cv_grep_pthread_attr_get_np=present,
+		    tcl_cv_grep_pthread_attr_get_np=missing)])
+	    if test $tcl_cv_grep_pthread_attr_get_np = missing ; then
+		AC_DEFINE(ATTRGETNP_NOT_DECLARED, 1,
+		    [Is pthread_attr_get_np() declared in <pthread.h>?])
+	    fi
+	else
+	    AC_CHECK_FUNC(pthread_getattr_np,tcl_ok=yes,tcl_ok=no)
+	    if test $tcl_ok = yes ; then
+		AC_DEFINE(HAVE_PTHREAD_GETATTR_NP, 1,
+		    [Do we want a Linux-like thread-attribute interface?])
+		AC_CACHE_CHECK([for pthread_getattr_np declaration],
+		    tcl_cv_grep_pthread_getattr_np, [
+		    AC_EGREP_HEADER(pthread_getattr_np, pthread.h,
+			tcl_cv_grep_pthread_getattr_np=present,
+			tcl_cv_grep_pthread_getattr_np=missing)])
+		if test $tcl_cv_grep_pthread_getattr_np = missing ; then
+		    AC_DEFINE(GETATTRNP_NOT_DECLARED, 1,
+			[Is pthread_getattr_np declared in <pthread.h>?])
+		fi
+	    fi
+	fi
+	if test $tcl_ok = no; then
+	    # Darwin thread stacksize API
+	    AC_CHECK_FUNCS(pthread_get_stacksize_np)
+	fi
+	LIBS=$ac_saved_libs
+    else
+	TCL_THREADS=0
+    fi
+    # Do checking message here to not mess up interleaved configure output
+    AC_MSG_CHECKING([for building with threads])
+    if test "${TCL_THREADS}" = 1; then
+	AC_DEFINE(TCL_THREADS, 1, [Are we building with threads enabled?])
+	if test "${tcl_threaded_core}" = 1; then
+	    AC_MSG_RESULT([yes (threaded core)])
+	else
+	    AC_MSG_RESULT([yes])
+	fi
+    else
+	AC_MSG_RESULT([no (default)])
+    fi
+
+    AC_SUBST(TCL_THREADS)
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_SYMBOLS --
+#
+#	Specify if debugging symbols should be used.
+#	Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging
+#	can also be enabled.
+#
+# Arguments:
+#	none
+#	
+#	Requires the following vars to be set in the Makefile:
+#		CFLAGS_DEBUG
+#		CFLAGS_OPTIMIZE
+#		LDFLAGS_DEBUG
+#		LDFLAGS_OPTIMIZE
+#	
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-symbols
+#
+#	Defines the following vars:
+#		CFLAGS_DEFAULT	Sets to $(CFLAGS_DEBUG) if true
+#				Sets to $(CFLAGS_OPTIMIZE) if false
+#		LDFLAGS_DEFAULT	Sets to $(LDFLAGS_DEBUG) if true
+#				Sets to $(LDFLAGS_OPTIMIZE) if false
+#		DBGX		Formerly used as debug library extension;
+#				always blank now.
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_SYMBOLS], [
+    AC_MSG_CHECKING([for build with symbols])
+    AC_ARG_ENABLE(symbols,
+	AC_HELP_STRING([--enable-symbols],
+	    [build with debugging symbols (default: off)]),
+	[tcl_ok=$enableval], [tcl_ok=no])
+# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
+    DBGX=""
+    if test "$tcl_ok" = "no"; then
+	CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'
+	LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'
+	AC_MSG_RESULT([no])
+	AC_DEFINE(TCL_CFG_OPTIMIZED, 1, [Is this an optimized build?])
+    else
+	CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'
+	LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'
+	if test "$tcl_ok" = "yes"; then
+	    AC_MSG_RESULT([yes (standard debugging)])
+	fi
+    fi
+    AC_SUBST(CFLAGS_DEFAULT)
+    AC_SUBST(LDFLAGS_DEFAULT)
+    ### FIXME: Surely TCL_CFG_DEBUG should be set to whether we're debugging?
+    AC_DEFINE(TCL_CFG_DEBUG, 1, [Is debugging enabled?])
+
+    if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
+	AC_DEFINE(TCL_MEM_DEBUG, 1, [Is memory debugging enabled?])
+    fi
+
+    ifelse($1,bccdebug,dnl Only enable 'compile' for the Tcl core itself
+	if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
+	    AC_DEFINE(TCL_COMPILE_DEBUG, 1, [Is bytecode debugging enabled?])
+	    AC_DEFINE(TCL_COMPILE_STATS, 1, [Are bytecode statistics enabled?])
+	fi)
+
+    if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then
+	if test "$tcl_ok" = "all"; then
+	    AC_MSG_RESULT([enabled symbols mem ]ifelse($1,bccdebug,[compile ])[debugging])
+	else
+	    AC_MSG_RESULT([enabled $tcl_ok debugging])
+	fi
+    fi
+])
+
+#------------------------------------------------------------------------
+# SC_ENABLE_LANGINFO --
+#
+#	Allows use of modern nl_langinfo check for better l10n.
+#	This is only relevant for Unix.
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-langinfo=yes|no (default is yes)
+#
+#	Defines the following vars:
+#		HAVE_LANGINFO	Triggers use of nl_langinfo if defined.
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN([SC_ENABLE_LANGINFO], [
+    AC_ARG_ENABLE(langinfo,
+	AC_HELP_STRING([--enable-langinfo],
+	    [use nl_langinfo if possible to determine encoding at startup, otherwise use old heuristic (default: on)]),
+	[langinfo_ok=$enableval], [langinfo_ok=yes])
+
+    HAVE_LANGINFO=0
+    if test "$langinfo_ok" = "yes"; then
+	AC_CHECK_HEADER(langinfo.h,[langinfo_ok=yes],[langinfo_ok=no])
+    fi
+    AC_MSG_CHECKING([whether to use nl_langinfo])
+    if test "$langinfo_ok" = "yes"; then
+	AC_CACHE_VAL(tcl_cv_langinfo_h, [
+	    AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
+		    [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
+	AC_MSG_RESULT([$tcl_cv_langinfo_h])
+	if test $tcl_cv_langinfo_h = yes; then
+	    AC_DEFINE(HAVE_LANGINFO, 1, [Do we have nl_langinfo()?])
+	fi
+    else 
+	AC_MSG_RESULT([$langinfo_ok])
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_MANPAGES
+#	
+#	Decide whether to use symlinks for linking the manpages,
+#	whether to compress the manpages after installation, and
+#	whether to add a package name suffix to the installed
+#	manpages to avoidfile name clashes.
+#	If compression is enabled also find out what file name suffix
+#	the given compression program is using.
+#
+# Arguments:
+#	none
+#
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-man-symlinks
+#		--enable-man-compression=PROG
+#		--enable-man-suffix[=STRING]
+#
+#	Defines the following variable:
+#
+#	MAN_FLAGS -	The apropriate flags for installManPage
+#			according to the user's selection.
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_MANPAGES], [
+    AC_MSG_CHECKING([whether to use symlinks for manpages])
+    AC_ARG_ENABLE(man-symlinks,
+	AC_HELP_STRING([--enable-man-symlinks],
+	    [use symlinks for the manpages (default: off)]),
+	test "$enableval" != "no" && MAN_FLAGS="$MAN_FLAGS --symlinks",
+	enableval="no")
+    AC_MSG_RESULT([$enableval])
+
+    AC_MSG_CHECKING([whether to compress the manpages])
+    AC_ARG_ENABLE(man-compression,
+	AC_HELP_STRING([--enable-man-compression=PROG],
+	    [compress the manpages with PROG (default: off)]),
+	[case $enableval in
+	    yes) AC_MSG_ERROR([missing argument to --enable-man-compression]);;
+	    no)  ;;
+	    *)   MAN_FLAGS="$MAN_FLAGS --compress $enableval";;
+	esac],
+	enableval="no")
+    AC_MSG_RESULT([$enableval])
+    if test "$enableval" != "no"; then
+	AC_MSG_CHECKING([for compressed file suffix])
+	touch TeST
+	$enableval TeST
+	Z=`ls TeST* | sed 's/^....//'`
+	rm -f TeST*
+	MAN_FLAGS="$MAN_FLAGS --extension $Z"
+	AC_MSG_RESULT([$Z])
+    fi
+
+    AC_MSG_CHECKING([whether to add a package name suffix for the manpages])
+    AC_ARG_ENABLE(man-suffix,
+	AC_HELP_STRING([--enable-man-suffix=STRING],
+	    [use STRING as a suffix to manpage file names (default: no, AC_PACKAGE_NAME if enabled without specifying STRING)]),
+	[case $enableval in
+	    yes) enableval="AC_PACKAGE_NAME" MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
+	    no)  ;;
+	    *)   MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
+	esac],
+	enableval="no")
+    AC_MSG_RESULT([$enableval])
+
+    AC_SUBST(MAN_FLAGS)
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_SYSTEM
+#
+#	Determine what the system is (some things cannot be easily checked
+#	on a feature-driven basis, alas). This can usually be done via the
+#	"uname" command, but there are a few systems, like Next, where
+#	this doesn't work.
+#
+# Arguments:
+#	none
+#
+# Results:
+#	Defines the following var:
+#
+#	system -	System/platform/version identification code.
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_SYSTEM], [
+    AC_CACHE_CHECK([system version], tcl_cv_sys_version, [
+	if test -f /usr/lib/NextStep/software_version; then
+	    tcl_cv_sys_version=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
+	else
+	    tcl_cv_sys_version=`uname -s`-`uname -r`
+	    if test "$?" -ne 0 ; then
+		AC_MSG_WARN([can't find uname command])
+		tcl_cv_sys_version=unknown
+	    else
+		# Special check for weird MP-RAS system (uname returns weird
+		# results, and the version is kept in special file).
+
+		if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
+		    tcl_cv_sys_version=MP-RAS-`awk '{print $[3]}' /etc/.relid`
+		fi
+		if test "`uname -s`" = "AIX" ; then
+		    tcl_cv_sys_version=AIX-`uname -v`.`uname -r`
+		fi
+	    fi
+	fi
+    ])
+    system=$tcl_cv_sys_version
+])
+
+#--------------------------------------------------------------------
+# SC_CONFIG_CFLAGS
+#
+#	Try to determine the proper flags to pass to the compiler
+#	for building shared libraries and other such nonsense.
+#
+# Arguments:
+#	none
+#
+# Results:
+#
+#	Defines and substitutes the following vars:
+#
+#       DL_OBJS -       Name of the object file that implements dynamic
+#                       loading for Tcl on this system.
+#       DL_LIBS -       Library file(s) to include in tclsh and other base
+#                       applications in order for the "load" command to work.
+#       LDFLAGS -      Flags to pass to the compiler when linking object
+#                       files into an executable application binary such
+#                       as tclsh.
+#       LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
+#                       that tell the run-time dynamic linker where to look
+#                       for shared libraries such as libtcl.so.  Depends on
+#                       the variable LIB_RUNTIME_DIR in the Makefile. Could
+#                       be the same as CC_SEARCH_FLAGS if ${CC} is used to link.
+#       CC_SEARCH_FLAGS-Flags to pass to ${CC}, such as "-Wl,-rpath,/usr/local/tcl/lib",
+#                       that tell the run-time dynamic linker where to look
+#                       for shared libraries such as libtcl.so.  Depends on
+#                       the variable LIB_RUNTIME_DIR in the Makefile.
+#       MAKE_LIB -      Command to execute to build the a library;
+#                       differs when building shared or static.
+#       MAKE_STUB_LIB -
+#                       Command to execute to build a stub library.
+#       INSTALL_LIB -   Command to execute to install a library;
+#                       differs when building shared or static.
+#       INSTALL_STUB_LIB -
+#                       Command to execute to install a stub library.
+#       STLIB_LD -      Base command to use for combining object files
+#                       into a static library.
+#       SHLIB_CFLAGS -  Flags to pass to cc when compiling the components
+#                       of a shared library (may request position-independent
+#                       code, among other things).
+#       SHLIB_LD -      Base command to use for combining object files
+#                       into a shared library.
+#       SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
+#                       creating shared libraries.  This symbol typically
+#                       goes at the end of the "ld" commands that build
+#                       shared libraries. The value of the symbol is
+#                       "${LIBS}" if all of the dependent libraries should
+#                       be specified when creating a shared library.  If
+#                       dependent libraries should not be specified (as on
+#                       SunOS 4.x, where they cause the link to fail, or in
+#                       general if Tcl and Tk aren't themselves shared
+#                       libraries), then this symbol has an empty string
+#                       as its value.
+#       SHLIB_SUFFIX -  Suffix to use for the names of dynamically loadable
+#                       extensions.  An empty string means we don't know how
+#                       to use shared libraries on this platform.
+# TCL_SHLIB_LD_EXTRAS - Additional element which are added to SHLIB_LD_LIBS
+#  TK_SHLIB_LD_EXTRAS   for the build of Tcl and Tk, but not recorded in the
+#                       tclConfig.sh, since they are only used for the build
+#                       of Tcl and Tk. 
+#                       Examples: MacOS X records the library version and
+#                       compatibility version in the shared library.  But
+#                       of course the Tcl version of this is only used for Tcl.
+#       LIB_SUFFIX -    Specifies everything that comes after the "libfoo"
+#                       in a static or shared library name, using the $VERSION variable
+#                       to put the version in the right place.  This is used
+#                       by platforms that need non-standard library names.
+#                       Examples:  ${VERSION}.so.1.1 on NetBSD, since it needs
+#                       to have a version after the .so, and ${VERSION}.a
+#                       on AIX, since a shared library needs to have
+#                       a .a extension whereas shared objects for loadable
+#                       extensions have a .so extension.  Defaults to
+#                       ${VERSION}${SHLIB_SUFFIX}.
+#       TCL_NEEDS_EXP_FILE -
+#                       1 means that an export file is needed to link to a
+#                       shared library.
+#       TCL_EXP_FILE -  The name of the installed export / import file which
+#                       should be used to link to the Tcl shared library.
+#                       Empty if Tcl is unshared.
+#       TCL_BUILD_EXP_FILE -
+#                       The name of the built export / import file which
+#                       should be used to link to the Tcl shared library.
+#                       Empty if Tcl is unshared.
+#       TCL_LIBS -
+#                       Libs to use when linking Tcl shell or some other
+#                       shell that includes Tcl libs.
+#	CFLAGS_DEBUG -
+#			Flags used when running the compiler in debug mode
+#	CFLAGS_OPTIMIZE -
+#			Flags used when running the compiler in optimize mode
+#	CFLAGS -	Additional CFLAGS added as necessary (usually 64-bit)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_CONFIG_CFLAGS], [
+
+    # Step 0.a: Enable 64 bit support?
+
+    AC_MSG_CHECKING([if 64bit support is requested])
+    AC_ARG_ENABLE(64bit,
+	AC_HELP_STRING([--enable-64bit],
+	    [enable 64bit support (default: off)]),
+	[do64bit=$enableval], [do64bit=no])
+    AC_MSG_RESULT([$do64bit])
+
+    # Step 0.b: Enable Solaris 64 bit VIS support?
+
+    AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
+    AC_ARG_ENABLE(64bit-vis,
+	AC_HELP_STRING([--enable-64bit-vis],
+	    [enable 64bit Sparc VIS support (default: off)]),
+	[do64bitVIS=$enableval], [do64bitVIS=no])
+    AC_MSG_RESULT([$do64bitVIS])
+    # Force 64bit on with VIS
+    AS_IF([test "$do64bitVIS" = "yes"], [do64bit=yes])
+
+    # Step 0.c: Check if visibility support is available. Do this here so
+    # that platform specific alternatives can be used below if this fails.
+
+    AC_CACHE_CHECK([if compiler supports visibility "hidden"],
+	tcl_cv_cc_visibility_hidden, [
+	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
+	AC_TRY_LINK([
+	    extern __attribute__((__visibility__("hidden"))) void f(void);
+	    void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
+	    tcl_cv_cc_visibility_hidden=no)
+	CFLAGS=$hold_cflags])
+    AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
+	AC_DEFINE(MODULE_SCOPE,
+	    [extern __attribute__((__visibility__("hidden")))],
+	    [Compiler support for module scope symbols])
+    ])
+
+    # Step 0.d: Disable -rpath support?
+
+    AC_MSG_CHECKING([if rpath support is requested])
+    AC_ARG_ENABLE(rpath,
+	AC_HELP_STRING([--disable-rpath],
+	    [disable rpath support (default: on)]),
+	[doRpath=$enableval], [doRpath=yes])
+    AC_MSG_RESULT([$doRpath])
+
+    # Step 1: set the variable "system" to hold the name and version number
+    # for the system.
+
+    SC_CONFIG_SYSTEM
+
+    # Step 2: check for existence of -ldl library.  This is needed because
+    # Linux can use either -ldl or -ldld for dynamic loading.
+
+    AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
+
+    # Require ranlib early so we can override it in special cases below.
+    LDAIX_SRC=""
+    AS_IF([test x"${SHLIB_VERSION}" = x], [SHLIB_VERSION="1.0"])
+
+    AC_REQUIRE([AC_PROG_RANLIB])
+
+    # Step 3: set configuration options based on system name and version.
+
+    do64bit_ok=no
+    LDFLAGS_ORIG="$LDFLAGS"
+    # When ld needs options to work in 64-bit mode, put them in
+    # LDFLAGS_ARCH so they eventually end up in LDFLAGS even if [load]
+    # is disabled by the user. [Bug 1016796]
+    LDFLAGS_ARCH=""
+    TCL_EXPORT_FILE_SUFFIX=""
+    UNSHARED_LIB_SUFFIX=""
+    TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
+    ECHO_VERSION='`echo ${VERSION}`'
+    TCL_LIB_VERSIONS_OK=ok
+    CFLAGS_DEBUG=-g
+    CFLAGS_OPTIMIZE=-O
+    AS_IF([test "$GCC" = yes], [
+	CFLAGS_WARNING="-Wall"
+    ], [CFLAGS_WARNING=""])
+    TCL_NEEDS_EXP_FILE=0
+    TCL_BUILD_EXP_FILE=""
+    TCL_EXP_FILE=""
+dnl FIXME: Replace AC_CHECK_PROG with AC_CHECK_TOOL once cross compiling is fixed.
+dnl AC_CHECK_TOOL(AR, ar)
+    AC_CHECK_PROG(AR, ar, ar)
+    AS_IF([test "${AR}" = ""], [
+	AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
+    ])
+    STLIB_LD='${AR} cr'
+    LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
+    PLAT_OBJS=""
+    PLAT_SRCS=""
+    case $system in
+	AIX-*)
+	    AS_IF([test "${TCL_THREADS}" = "1" -a "$GCC" != "yes"], [
+		# AIX requires the _r compiler when gcc isn't being used
+		case "${CC}" in
+		    *_r)
+			# ok ...
+			;;
+		    *)
+			CC=${CC}_r
+			;;
+		esac
+		AC_MSG_RESULT([Using $CC for compiling with threads])
+	    ])
+	    LIBS="$LIBS -lc"
+	    SHLIB_CFLAGS=""
+	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
+	    # symbols when dynamically loaded into tclsh.
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+
+	    DL_OBJS="tclLoadDl.o"
+	    LD_LIBRARY_PATH_VAR="LIBPATH"
+
+	    # Check to enable 64-bit flags for compiler/linker on AIX 4+
+		LDAIX_SRC='$(UNIX_DIR)/ldAix'
+	    AS_IF([test "$do64bit" = yes -a "`uname -v`" -gt 3], [
+		AS_IF([test "$GCC" = yes], [
+		    AC_MSG_WARN([64bit mode not supported with GCC on $system])
+		], [
+		    do64bit_ok=yes
+		    CFLAGS="$CFLAGS -q64"
+		    LDFLAGS_ARCH="-q64"
+		    RANLIB="${RANLIB} -X64"
+		    AR="${AR} -X64"
+		    SHLIB_LD_FLAGS="-b64"
+		])
+	    ])
+
+	    AS_IF([test "`uname -m`" = ia64], [
+		# AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
+		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
+		# AIX-5 has dl* in libc.so
+		DL_LIBS=""
+		AS_IF([test "$GCC" = yes], [
+		    CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		], [
+		    CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
+		])
+		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+	    ], [
+		AS_IF([test "$GCC" = yes], [SHLIB_LD='${CC} -shared'], [
+		    SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
+		])
+		SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix ${SHLIB_LD} ${SHLIB_LD_FLAGS}"
+		DL_LIBS="-ldl"
+		CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+		TCL_NEEDS_EXP_FILE=1
+		TCL_EXPORT_FILE_SUFFIX='${VERSION}.exp'
+	    ])
+
+	    # AIX v<=4.1 has some different flags than 4.2+
+	    AS_IF([test "$system" = "AIX-4.1" -o "`uname -v`" -lt 4], [
+		AC_LIBOBJ([tclLoadAix])
+		DL_LIBS="-lld"
+	    ])
+
+	    # On AIX <=v4 systems, libbsd.a has to be linked in to support
+	    # non-blocking file IO.  This library has to be linked in after
+	    # the MATH_LIBS or it breaks the pow() function.  The way to
+	    # insure proper sequencing, is to add it to the tail of MATH_LIBS.
+	    # This library also supplies gettimeofday.
+	    #
+	    # AIX does not have a timezone field in struct tm. When the AIX
+	    # bsd library is used, the timezone global and the gettimeofday
+	    # methods are to be avoided for timezone deduction instead, we
+	    # deduce the timezone by comparing the localtime result on a
+	    # known GMT value.
+
+	    AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes, libbsd=no)
+	    AS_IF([test $libbsd = yes], [
+	    	MATH_LIBS="$MATH_LIBS -lbsd"
+	    	AC_DEFINE(USE_DELTA_FOR_TZ, 1, [Do we need a special AIX hack for timezones?])
+	    ])
+	    ;;
+	BeOS*)
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD='${CC} -nostart'
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+
+	    #-----------------------------------------------------------
+	    # Check for inet_ntoa in -lbind, for BeOS (which also needs
+	    # -lsocket, even if the network functions are in -lnet which
+	    # is always linked to, for compatibility.
+	    #-----------------------------------------------------------
+	    AC_CHECK_LIB(bind, inet_ntoa, [LIBS="$LIBS -lbind -lsocket"])
+	    ;;
+	BSD/OS-2.1*|BSD/OS-3*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD="shlicc -r"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	BSD/OS-4.*)
+	    SHLIB_CFLAGS="-export-dynamic -fPIC"
+	    SHLIB_LD='${CC} -shared'
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    LDFLAGS="$LDFLAGS -export-dynamic"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	dgux*)
+	    SHLIB_CFLAGS="-K PIC"
+	    SHLIB_LD='${CC} -G'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	HP-UX-*.11.*)
+	    # Use updated header definitions where possible
+	    AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Do we want to use the XOPEN network library?])
+	    AC_DEFINE(_XOPEN_SOURCE, 1, [Do we want to use the XOPEN network library?])
+	    LIBS="$LIBS -lxnet"               # Use the XOPEN network library
+
+	    AS_IF([test "`uname -m`" = ia64], [
+		SHLIB_SUFFIX=".so"
+	    ], [
+		SHLIB_SUFFIX=".sl"
+	    ])
+	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
+	    AS_IF([test "$tcl_ok" = yes], [
+		SHLIB_CFLAGS="+z"
+		SHLIB_LD="ld -b"
+		SHLIB_LD_LIBS='${LIBS}'
+		DL_OBJS="tclLoadShl.o"
+		DL_LIBS="-ldld"
+		LDFLAGS="$LDFLAGS -Wl,-E"
+		CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
+		LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+		LD_LIBRARY_PATH_VAR="SHLIB_PATH"
+	    ])
+	    AS_IF([test "$GCC" = yes], [
+		SHLIB_LD='${CC} -shared'
+		SHLIB_LD_LIBS='${LIBS}'
+		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+	    ])
+
+	    # Users may want PA-RISC 1.1/2.0 portable code - needs HP cc
+	    #CFLAGS="$CFLAGS +DAportable"
+
+	    # Check to enable 64-bit flags for compiler/linker
+	    AS_IF([test "$do64bit" = "yes"], [
+		AS_IF([test "$GCC" = yes], [
+		    case `${CC} -dumpmachine` in
+			hppa64*)
+			    # 64-bit gcc in use.  Fix flags for GNU ld.
+			    do64bit_ok=yes
+			    SHLIB_LD='${CC} -shared'
+			    SHLIB_LD_LIBS='${LIBS}'
+			    AS_IF([test $doRpath = yes], [
+				CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+			    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+			    ;;
+			*)
+			    AC_MSG_WARN([64bit mode not supported with GCC on $system])
+			    ;;
+		    esac
+		], [
+		    do64bit_ok=yes
+		    CFLAGS="$CFLAGS +DD64"
+		    LDFLAGS_ARCH="+DD64"
+		])
+	    ]) ;;
+	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
+	    SHLIB_SUFFIX=".sl"
+	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
+	    AS_IF([test "$tcl_ok" = yes], [
+		SHLIB_CFLAGS="+z"
+		SHLIB_LD="ld -b"
+		SHLIB_LD_LIBS=""
+		DL_OBJS="tclLoadShl.o"
+		DL_LIBS="-ldld"
+		LDFLAGS="$LDFLAGS -Wl,-E"
+		CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
+		LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+		LD_LIBRARY_PATH_VAR="SHLIB_PATH"
+	    ]) ;;
+	IRIX-5.*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD="ld -shared -rdata_shared"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+	    ;;
+	IRIX-6.*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD="ld -n32 -shared -rdata_shared"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+	    AS_IF([test "$GCC" = yes], [
+		CFLAGS="$CFLAGS -mabi=n32"
+		LDFLAGS="$LDFLAGS -mabi=n32"
+	    ], [
+		case $system in
+		    IRIX-6.3)
+			# Use to build 6.2 compatible binaries on 6.3.
+			CFLAGS="$CFLAGS -n32 -D_OLD_TERMIOS"
+			;;
+		    *)
+			CFLAGS="$CFLAGS -n32"
+			;;
+		esac
+		LDFLAGS="$LDFLAGS -n32"
+	    ])
+	    ;;
+	IRIX64-6.*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD="ld -n32 -shared -rdata_shared"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+
+	    # Check to enable 64-bit flags for compiler/linker
+
+	    AS_IF([test "$do64bit" = yes], [
+	        AS_IF([test "$GCC" = yes], [
+	            AC_MSG_WARN([64bit mode not supported by gcc])
+	        ], [
+	            do64bit_ok=yes
+	            SHLIB_LD="ld -64 -shared -rdata_shared"
+	            CFLAGS="$CFLAGS -64"
+	            LDFLAGS_ARCH="-64"
+	        ])
+	    ])
+	    ;;
+	Linux*)
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+
+	    CFLAGS_OPTIMIZE="-O2"
+	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings 
+	    # when you inline the string and math operations.  Turn this off to
+	    # get rid of the warnings.
+	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
+
+	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
+	    AS_IF([test $do64bit = yes], [
+		AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
+		    hold_cflags=$CFLAGS
+		    CFLAGS="$CFLAGS -m64"
+		    AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
+		    CFLAGS=$hold_cflags])
+		AS_IF([test $tcl_cv_cc_m64 = yes], [
+		    CFLAGS="$CFLAGS -m64"
+		    do64bit_ok=yes
+		])
+	   ])
+
+	    # The combo of gcc + glibc has a bug related to inlining of
+	    # functions like strtod(). The -fno-builtin flag should address
+	    # this problem but it does not work. The -fno-inline flag is kind
+	    # of overkill but it works. Disable inlining only when one of the
+	    # files in compat/*.c is being linked in.
+
+	    AS_IF([test x"${USE_COMPAT}" != x],[CFLAGS="$CFLAGS -fno-inline"])
+	    ;;
+	GNU*)
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+
+	    SHLIB_LD='${CC} -shared'
+	    DL_OBJS=""
+	    DL_LIBS="-ldl"
+	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
+	    ;;
+	Lynx*)
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    CFLAGS_OPTIMIZE=-02
+	    SHLIB_LD='${CC} -shared'
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-mshared -ldl"
+	    LD_FLAGS="-Wl,--export-dynamic"
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+	    ;;
+	MP-RAS-02*)
+	    SHLIB_CFLAGS="-K PIC"
+	    SHLIB_LD='${CC} -G'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	MP-RAS-*)
+	    SHLIB_CFLAGS="-K PIC"
+	    SHLIB_LD='${CC} -G'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    LDFLAGS="$LDFLAGS -Wl,-Bexport"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	NetBSD-1.*|FreeBSD-[[1-2]].*)
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD="ld -Bshareable -x"
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
+		AC_EGREP_CPP(yes, [
+#ifdef __ELF__
+	yes
+#endif
+		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
+	    AS_IF([test $tcl_cv_ld_elf = yes], [
+		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
+	    ], [
+		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+	    ])
+
+	    # Ancient FreeBSD doesn't handle version numbers with dots.
+
+	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+	    TCL_LIB_VERSIONS_OK=nodots
+	    ;;
+	OpenBSD-*)
+	    CFLAGS_OPTIMIZE='-O2'
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
+		AC_EGREP_CPP(yes, [
+#ifdef __ELF__
+	yes
+#endif
+		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
+	    AS_IF([test $tcl_cv_ld_elf = yes], [
+		LDFLAGS=-Wl,-export-dynamic
+	    ], [LDFLAGS=""])
+
+	    # OpenBSD doesn't do version numbers with dots.
+	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+	    TCL_LIB_VERSIONS_OK=nodots
+	    ;;
+	NetBSD-*|FreeBSD-*)
+	    # FreeBSD 3.* and greater have ELF.
+	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    LDFLAGS="$LDFLAGS -export-dynamic"
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+	    AS_IF([test "${TCL_THREADS}" = "1"], [
+		# The -pthread needs to go in the CFLAGS, not LIBS
+		LIBS=`echo $LIBS | sed s/-pthread//`
+		CFLAGS="$CFLAGS -pthread"
+	    	LDFLAGS="$LDFLAGS -pthread"
+	    ])
+	    case $system in
+	    FreeBSD-3.*)
+	    	# FreeBSD-3 doesn't handle version numbers with dots.
+	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
+	    	TCL_LIB_VERSIONS_OK=nodots
+		;;
+	    esac
+	    ;;
+	Darwin-*)
+	    CFLAGS_OPTIMIZE="-Os"
+	    SHLIB_CFLAGS="-fno-common"
+	    # To avoid discrepancies between what headers configure sees during
+	    # preprocessing tests and compiling tests, move any -isysroot and
+	    # -mmacosx-version-min flags from CFLAGS to CPPFLAGS:
+	    CPPFLAGS="${CPPFLAGS} `echo " ${CFLAGS}" | \
+		awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+		if ([$]i~/^(isysroot|mmacosx-version-min)/) print "-"[$]i}'`"
+	    CFLAGS="`echo " ${CFLAGS}" | \
+		awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
+		if (!([$]i~/^(isysroot|mmacosx-version-min)/)) print "-"[$]i}'`"
+	    AS_IF([test $do64bit = yes], [
+		case `arch` in
+		    ppc)
+			AC_CACHE_CHECK([if compiler accepts -arch ppc64 flag],
+				tcl_cv_cc_arch_ppc64, [
+			    hold_cflags=$CFLAGS
+			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+			    AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
+				    tcl_cv_cc_arch_ppc64=no)
+			    CFLAGS=$hold_cflags])
+			AS_IF([test $tcl_cv_cc_arch_ppc64 = yes], [
+			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+			    do64bit_ok=yes
+			]);;
+		    i386)
+			AC_CACHE_CHECK([if compiler accepts -arch x86_64 flag],
+				tcl_cv_cc_arch_x86_64, [
+			    hold_cflags=$CFLAGS
+			    CFLAGS="$CFLAGS -arch x86_64"
+			    AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
+				    tcl_cv_cc_arch_x86_64=no)
+			    CFLAGS=$hold_cflags])
+			AS_IF([test $tcl_cv_cc_arch_x86_64 = yes], [
+			    CFLAGS="$CFLAGS -arch x86_64"
+			    do64bit_ok=yes
+			]);;
+		    *)
+			AC_MSG_WARN([Don't know how enable 64-bit on architecture `arch`]);;
+		esac
+	    ], [
+		# Check for combined 32-bit and 64-bit fat build
+		AS_IF([echo "$CFLAGS " |grep -E -q -- '-arch (ppc64|x86_64) ' \
+		    && echo "$CFLAGS " |grep -E -q -- '-arch (ppc|i386) '], [
+		    fat_32_64=yes])
+	    ])
+	    SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
+	    AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
+		hold_ldflags=$LDFLAGS
+		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
+		AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
+		LDFLAGS=$hold_ldflags])
+	    AS_IF([test $tcl_cv_ld_single_module = yes], [
+		SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
+	    ])
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".dylib"
+	    DL_OBJS="tclLoadDyld.o"
+	    DL_LIBS=""
+	    # Don't use -prebind when building for Mac OS X 10.4 or later only:
+	    AS_IF([test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F '10\\.' '{print int([$]2)}'`" -lt 4 -a \
+		"`echo "${CPPFLAGS}" | awk -F '-mmacosx-version-min=10\\.' '{print int([$]2)}'`" -lt 4], [
+		LDFLAGS="$LDFLAGS -prebind"])
+	    LDFLAGS="$LDFLAGS -headerpad_max_install_names"
+	    AC_CACHE_CHECK([if ld accepts -search_paths_first flag],
+		    tcl_cv_ld_search_paths_first, [
+		hold_ldflags=$LDFLAGS
+		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+		AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes,
+			tcl_cv_ld_search_paths_first=no)
+		LDFLAGS=$hold_ldflags])
+	    AS_IF([test $tcl_cv_ld_search_paths_first = yes], [
+		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+	    ])
+	    AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
+		AC_DEFINE(MODULE_SCOPE, [__private_extern__],
+		    [Compiler support for module scope symbols])
+	    ])
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
+	    AC_DEFINE(MAC_OSX_TCL, 1, [Is this a Mac I see before me?])
+	    PLAT_OBJS='${MAC_OSX_OBJS}'
+	    PLAT_SRCS='${MAC_OSX_SRCS}'
+	    AC_MSG_CHECKING([whether to use CoreFoundation])
+	    AC_ARG_ENABLE(corefoundation,
+		AC_HELP_STRING([--enable-corefoundation],
+		    [use CoreFoundation API on MacOSX (default: on)]),
+		[tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
+	    AC_MSG_RESULT([$tcl_corefoundation])
+	    AS_IF([test $tcl_corefoundation = yes], [
+		AC_CACHE_CHECK([for CoreFoundation.framework],
+			tcl_cv_lib_corefoundation, [
+		    hold_libs=$LIBS
+		    AS_IF([test "$fat_32_64" = yes], [
+			for v in CFLAGS CPPFLAGS LDFLAGS; do
+			    # On Tiger there is no 64-bit CF, so remove 64-bit
+			    # archs from CFLAGS et al. while testing for
+			    # presence of CF. 64-bit CF is disabled in
+			    # tclUnixPort.h if necessary.
+			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
+			done])
+		    LIBS="$LIBS -framework CoreFoundation"
+		    AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>], 
+			[CFBundleRef b = CFBundleGetMainBundle();], 
+			tcl_cv_lib_corefoundation=yes,
+			tcl_cv_lib_corefoundation=no)
+		    AS_IF([test "$fat_32_64" = yes], [
+			for v in CFLAGS CPPFLAGS LDFLAGS; do
+			    eval $v'="$hold_'$v'"'
+		        done])
+		    LIBS=$hold_libs])
+		AS_IF([test $tcl_cv_lib_corefoundation = yes], [
+		    LIBS="$LIBS -framework CoreFoundation"
+		    AC_DEFINE(HAVE_COREFOUNDATION, 1, 
+			[Do we have access to Darwin CoreFoundation.framework?])
+		], [tcl_corefoundation=no])
+		AS_IF([test "$fat_32_64" = yes -a $tcl_corefoundation = yes],[
+		    AC_CACHE_CHECK([for 64-bit CoreFoundation],
+			    tcl_cv_lib_corefoundation_64, [
+			for v in CFLAGS CPPFLAGS LDFLAGS; do
+			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
+			done
+			AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>], 
+			    [CFBundleRef b = CFBundleGetMainBundle();], 
+			    tcl_cv_lib_corefoundation_64=yes,
+			    tcl_cv_lib_corefoundation_64=no)
+			for v in CFLAGS CPPFLAGS LDFLAGS; do
+			    eval $v'="$hold_'$v'"'
+			done])
+		    AS_IF([test $tcl_cv_lib_corefoundation_64 = no], [
+			AC_DEFINE(NO_COREFOUNDATION_64, 1,
+			    [Is Darwin CoreFoundation unavailable for 64-bit?])
+                        LDFLAGS="$LDFLAGS -Wl,-no_arch_warnings"
+		    ])
+		])
+	    ])
+	    ;;
+	NEXTSTEP-*)
+	    SHLIB_CFLAGS=""
+	    SHLIB_LD='${CC} -nostdlib -r'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadNext.o"
+	    DL_LIBS=""
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	OS/390-*)
+	    CFLAGS_OPTIMIZE=""		# Optimizer is buggy
+	    AC_DEFINE(_OE_SOCKETS, 1,	# needed in sys/socket.h
+		[Should OS/390 do the right thing with sockets?])
+	    ;;      
+	OSF1-1.0|OSF1-1.1|OSF1-1.2)
+	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
+	    SHLIB_CFLAGS=""
+	    # Hack: make package name same as library name
+	    SHLIB_LD='ld -R -export $@:'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadOSF.o"
+	    DL_LIBS=""
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	OSF1-1.*)
+	    # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
+	    SHLIB_CFLAGS="-fPIC"
+	    AS_IF([test "$SHARED_BUILD" = 1], [SHLIB_LD="ld -shared"], [
+	        SHLIB_LD="ld -non_shared"
+	    ])
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	OSF1-V*)
+	    # Digital OSF/1
+	    SHLIB_CFLAGS=""
+	    AS_IF([test "$SHARED_BUILD" = 1], [
+	        SHLIB_LD='ld -shared -expect_unresolved "*"'
+	    ], [
+	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
+	    ])
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    AS_IF([test $doRpath = yes], [
+		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+	    AS_IF([test "$GCC" = yes], [CFLAGS="$CFLAGS -mieee"], [
+		CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"])
+	    # see pthread_intro(3) for pthread support on osf1, k.furukawa
+	    AS_IF([test "${TCL_THREADS}" = 1], [
+		CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
+		CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
+		LIBS=`echo $LIBS | sed s/-lpthreads//`
+		AS_IF([test "$GCC" = yes], [
+		    LIBS="$LIBS -lpthread -lmach -lexc"
+		], [
+		    CFLAGS="$CFLAGS -pthread"
+		    LDFLAGS="$LDFLAGS -pthread"
+		])
+	    ])
+	    ;;
+	QNX-6*)
+	    # QNX RTP
+	    # This may work for all QNX, but it was only reported for v6.
+	    SHLIB_CFLAGS="-fPIC"
+	    SHLIB_LD="ld -Bshareable -x"
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    # dlopen is in -lc on QNX
+	    DL_LIBS=""
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	SCO_SV-3.2*)
+	    # Note, dlopen is available only on SCO 3.2.5 and greater. However,
+	    # this test works, since "uname -s" was non-standard in 3.2.4 and
+	    # below.
+	    AS_IF([test "$GCC" = yes], [
+	    	SHLIB_CFLAGS="-fPIC -melf"
+	    	LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
+	    ], [
+	    	SHLIB_CFLAGS="-Kpic -belf"
+	    	LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
+	    ])
+	    SHLIB_LD="ld -G"
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS=""
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	SINIX*5.4*)
+	    SHLIB_CFLAGS="-K PIC"
+	    SHLIB_LD='${CC} -G'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+	SunOS-4*)
+	    SHLIB_CFLAGS="-PIC"
+	    SHLIB_LD="ld"
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+
+	    # SunOS can't handle version numbers with dots in them in library
+	    # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
+	    # requires an extra version number at the end of .so file names.
+	    # So, the library has to have a name like libtcl75.so.1.0
+
+	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
+	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
+	    TCL_LIB_VERSIONS_OK=nodots
+	    ;;
+	SunOS-5.[[0-6]])
+	    # Careful to not let 5.10+ fall into this case
+
+	    # Note: If _REENTRANT isn't defined, then Solaris
+	    # won't define thread-safe library routines.
+
+	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+		[Do we really want to follow the standard? Yes we do!])
+
+	    SHLIB_CFLAGS="-KPIC"
+
+	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
+	    # symbols when dynamically loaded into tclsh.
+
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    AS_IF([test "$GCC" = yes], [
+		SHLIB_LD='${CC} -shared'
+		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+	    ], [
+		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
+		CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+	    ])
+	    ;;
+	SunOS-5*)
+	    # Note: If _REENTRANT isn't defined, then Solaris
+	    # won't define thread-safe library routines.
+
+	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
+		[Do we really want to follow the standard? Yes we do!])
+
+	    SHLIB_CFLAGS="-KPIC"
+
+	    # Check to enable 64-bit flags for compiler/linker
+	    AS_IF([test "$do64bit" = yes], [
+		arch=`isainfo`
+		AS_IF([test "$arch" = "sparcv9 sparc"], [
+		    AS_IF([test "$GCC" = yes], [
+			AS_IF([test "`${CC} -dumpversion | awk -F. '{print [$]1}'`" -lt 3], [
+			    AC_MSG_WARN([64bit mode not supported with GCC < 3.2 on $system])
+			], [
+			    do64bit_ok=yes
+			    CFLAGS="$CFLAGS -m64 -mcpu=v9"
+			    LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
+			    SHLIB_CFLAGS="-fPIC"
+			])
+		    ], [
+			do64bit_ok=yes
+			AS_IF([test "$do64bitVIS" = yes], [
+			    CFLAGS="$CFLAGS -xarch=v9a"
+			    LDFLAGS_ARCH="-xarch=v9a"
+			], [
+			    CFLAGS="$CFLAGS -xarch=v9"
+			    LDFLAGS_ARCH="-xarch=v9"
+			])
+			# Solaris 64 uses this as well
+			#LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
+		    ])
+		], [AS_IF([test "$arch" = "amd64 i386"], [
+		    AS_IF([test "$GCC" = yes], [
+			case $system in
+			    SunOS-5.1[[1-9]]*|SunOS-5.[[2-9]][[0-9]]*)
+				do64bit_ok=yes
+				CFLAGS="$CFLAGS -m64"
+				LDFLAGS="$LDFLAGS -m64";;
+			    *)
+				AC_MSG_WARN([64bit mode not supported with GCC on $system]);;
+			esac
+		    ], [
+			do64bit_ok=yes
+			case $system in
+			    SunOS-5.1[[1-9]]*|SunOS-5.[[2-9]][[0-9]]*)
+				CFLAGS="$CFLAGS -m64"
+				LDFLAGS="$LDFLAGS -m64";;
+			    *)
+				CFLAGS="$CFLAGS -xarch=amd64"
+				LDFLAGS="$LDFLAGS -xarch=amd64";;
+			esac
+		    ])
+		], [AC_MSG_WARN([64bit mode not supported for $arch])])])
+	    ])
+
+	    #--------------------------------------------------------------------
+	    # On Solaris 5.x i386 with the sunpro compiler we need to link
+	    # with sunmath to get floating point rounding control
+	    #--------------------------------------------------------------------
+	    AS_IF([test "$GCC" = yes],[use_sunmath=no],[
+		arch=`isainfo`
+		AC_MSG_CHECKING([whether to use -lsunmath for fp rounding control])
+		AS_IF([test "$arch" = "amd64 i386"], [
+			AC_MSG_RESULT([yes])
+			MATH_LIBS="-lsunmath $MATH_LIBS"
+			AC_CHECK_HEADER(sunmath.h)
+			use_sunmath=yes
+			], [
+			AC_MSG_RESULT([no])
+			use_sunmath=no
+		])
+	    ])
+
+	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
+	    # symbols when dynamically loaded into tclsh.
+
+	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    AS_IF([test "$GCC" = yes], [
+		SHLIB_LD='${CC} -shared'
+		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
+		AS_IF([test "$do64bit_ok" = yes], [
+		    AS_IF([test "$arch" = "sparcv9 sparc"], [
+			# We need to specify -static-libgcc or we need to
+			# add the path to the sparv9 libgcc.
+			SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
+			# for finding sparcv9 libgcc, get the regular libgcc
+			# path, remove so name and append 'sparcv9'
+			#v9gcclibdir="`gcc -print-file-name=libgcc_s.so` | ..."
+			#CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
+		    ], [AS_IF([test "$arch" = "amd64 i386"], [
+			SHLIB_LD="$SHLIB_LD -m64 -static-libgcc"
+		    ])])
+		])
+	    ], [
+		AS_IF([test "$use_sunmath" = yes], [textmode=textoff],[textmode=text])
+		case $system in
+		    SunOS-5.[[1-9]][[0-9]]*)
+			SHLIB_LD="\${CC} -G -z $textmode \${LDFLAGS}";;
+		    *)
+			SHLIB_LD="/usr/ccs/bin/ld -G -z $textmode";;
+		esac
+		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+	    ])
+	    ;;
+	UNIX_SV* | UnixWare-5*)
+	    SHLIB_CFLAGS="-KPIC"
+	    SHLIB_LD='${CC} -G'
+	    SHLIB_LD_LIBS=""
+	    SHLIB_SUFFIX=".so"
+	    DL_OBJS="tclLoadDl.o"
+	    DL_LIBS="-ldl"
+	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
+	    # that don't grok the -Bexport option.  Test that it does.
+	    AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
+		hold_ldflags=$LDFLAGS
+		LDFLAGS="$LDFLAGS -Wl,-Bexport"
+		AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
+	        LDFLAGS=$hold_ldflags])
+	    AS_IF([test $tcl_cv_ld_Bexport = yes], [
+		LDFLAGS="$LDFLAGS -Wl,-Bexport"
+	    ])
+	    CC_SEARCH_FLAGS=""
+	    LD_SEARCH_FLAGS=""
+	    ;;
+    esac
+
+    AS_IF([test "$do64bit" = yes -a "$do64bit_ok" = no], [
+	AC_MSG_WARN([64bit support being disabled -- don't know magic for this platform])
+    ])
+
+    AS_IF([test "$do64bit" = yes -a "$do64bit_ok" = yes], [
+	AC_DEFINE(TCL_CFG_DO64BIT, 1, [Is this a 64-bit build?])
+    ])
+
+dnl # Add any CPPFLAGS set in the environment to our CFLAGS, but delay doing so
+dnl # until the end of configure, as configure's compile and link tests use
+dnl # both CPPFLAGS and CFLAGS (unlike our compile and link) but configure's
+dnl # preprocessing tests use only CPPFLAGS.
+    AC_CONFIG_COMMANDS_PRE([CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""])
+
+    # Step 4: disable dynamic loading if requested via a command-line switch.
+
+    AC_ARG_ENABLE(load,
+	AC_HELP_STRING([--enable-load],
+	    [allow dynamic loading and "load" command (default: on)]),
+	[tcl_ok=$enableval], [tcl_ok=yes])
+    AS_IF([test "$tcl_ok" = no], [DL_OBJS=""])
+
+    AS_IF([test "x$DL_OBJS" != x], [BUILD_DLTEST="\$(DLTEST_TARGETS)"], [
+	AC_MSG_WARN([Can't figure out how to do dynamic loading or shared libraries on this system.])
+	SHLIB_CFLAGS=""
+	SHLIB_LD=""
+	SHLIB_SUFFIX=""
+	DL_OBJS="tclLoadNone.o"
+	DL_LIBS=""
+	LDFLAGS="$LDFLAGS_ORIG"
+	CC_SEARCH_FLAGS=""
+	LD_SEARCH_FLAGS=""
+	BUILD_DLTEST=""
+    ])
+    LDFLAGS="$LDFLAGS $LDFLAGS_ARCH"
+
+    # If we're running gcc, then change the C flags for compiling shared
+    # libraries to the right flags for gcc, instead of those for the
+    # standard manufacturer compiler.
+
+    AS_IF([test "$DL_OBJS" != "tclLoadNone.o" -a "$GCC" = yes], [
+	case $system in
+	    AIX-*) ;;
+	    BSD/OS*) ;;
+	    IRIX*) ;;
+	    NetBSD-*|FreeBSD-*) ;;
+	    Darwin-*) ;;
+	    SCO_SV-3.2*) ;;
+	    *) SHLIB_CFLAGS="-fPIC" ;;
+	esac])
+
+    AS_IF([test "$SHARED_LIB_SUFFIX" = ""], [
+	SHARED_LIB_SUFFIX='${VERSION}${SHLIB_SUFFIX}'])
+    AS_IF([test "$UNSHARED_LIB_SUFFIX" = ""], [
+	UNSHARED_LIB_SUFFIX='${VERSION}.a'])
+
+    AS_IF([test "${SHARED_BUILD}" = 1 -a "${SHLIB_SUFFIX}" != ""], [
+        LIB_SUFFIX=${SHARED_LIB_SUFFIX}
+        MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
+        INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE)'
+    ], [
+        LIB_SUFFIX=${UNSHARED_LIB_SUFFIX}
+
+        AS_IF([test "$RANLIB" = ""], [
+            MAKE_LIB='$(STLIB_LD) [$]@ ${OBJS}'
+            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE)'
+        ], [
+            MAKE_LIB='${STLIB_LD} [$]@ ${OBJS} ; ${RANLIB} [$]@'
+            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE) ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(LIB_FILE))'
+        ])
+    ])
+
+    # Stub lib does not depend on shared/static configuration
+    AS_IF([test "$RANLIB" = ""], [
+        MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS}'
+        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
+    ], [
+        MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS} ; ${RANLIB} [$]@'
+        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)"/$(STUB_LIB_FILE) ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(STUB_LIB_FILE))'
+    ])
+
+    # Define TCL_LIBS now that we know what DL_LIBS is.
+    # The trick here is that we don't want to change the value of TCL_LIBS if
+    # it is already set when tclConfig.sh had been loaded by Tk.
+    AS_IF([test "x${TCL_LIBS}" = x], [
+        TCL_LIBS="${DL_LIBS} ${LIBS} ${MATH_LIBS}"])
+    AC_SUBST(TCL_LIBS)
+
+    # FIXME: This subst was left in only because the TCL_DL_LIBS
+    # entry in tclConfig.sh uses it. It is not clear why someone
+    # would use TCL_DL_LIBS instead of TCL_LIBS.
+    AC_SUBST(DL_LIBS)
+
+    AC_SUBST(DL_OBJS)
+    AC_SUBST(PLAT_OBJS)
+    AC_SUBST(PLAT_SRCS)
+    AC_SUBST(LDAIX_SRC)
+    AC_SUBST(CFLAGS)
+    AC_SUBST(CFLAGS_DEBUG)
+    AC_SUBST(CFLAGS_OPTIMIZE)
+    AC_SUBST(CFLAGS_WARNING)
+
+    AC_SUBST(LDFLAGS)
+    AC_SUBST(LDFLAGS_DEBUG)
+    AC_SUBST(LDFLAGS_OPTIMIZE)
+    AC_SUBST(CC_SEARCH_FLAGS)
+    AC_SUBST(LD_SEARCH_FLAGS)
+
+    AC_SUBST(STLIB_LD)
+    AC_SUBST(SHLIB_LD)
+    AC_SUBST(TCL_SHLIB_LD_EXTRAS)
+    AC_SUBST(TK_SHLIB_LD_EXTRAS)
+    AC_SUBST(SHLIB_LD_LIBS)
+    AC_SUBST(SHLIB_CFLAGS)
+    AC_SUBST(SHLIB_SUFFIX)
+    AC_DEFINE_UNQUOTED(TCL_SHLIB_EXT,"${SHLIB_SUFFIX}",
+	[What is the default extension for shared libraries?])
+
+    AC_SUBST(MAKE_LIB)
+    AC_SUBST(MAKE_STUB_LIB)
+    AC_SUBST(INSTALL_LIB)
+    AC_SUBST(INSTALL_STUB_LIB)
+    AC_SUBST(RANLIB)
+])
+
+#--------------------------------------------------------------------
+# SC_SERIAL_PORT
+#
+#	Determine which interface to use to talk to the serial port.
+#	Note that #include lines must begin in leftmost column for
+#	some compilers to recognize them as preprocessor directives,
+#	and some build environments have stdin not pointing at a
+#	pseudo-terminal (usually /dev/null instead.)
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Defines only one of the following vars:
+#		HAVE_SYS_MODEM_H
+#		USE_TERMIOS
+#		USE_TERMIO
+#		USE_SGTTY
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_SERIAL_PORT], [
+    AC_CHECK_HEADERS(sys/modem.h)
+    AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
+    AC_TRY_RUN([
+#include <termios.h>
+
+int main() {
+    struct termios t;
+    if (tcgetattr(0, &t) == 0) {
+	cfsetospeed(&t, 0);
+	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+	return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    if test $tcl_cv_api_serial = no ; then
+	AC_TRY_RUN([
+#include <termio.h>
+
+int main() {
+    struct termio t;
+    if (ioctl(0, TCGETA, &t) == 0) {
+	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+	return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no ; then
+	AC_TRY_RUN([
+#include <sgtty.h>
+
+int main() {
+    struct sgttyb t;
+    if (ioctl(0, TIOCGETP, &t) == 0) {
+	t.sg_ospeed = 0;
+	t.sg_flags |= ODDP | EVENP | RAW;
+	return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no ; then
+	AC_TRY_RUN([
+#include <termios.h>
+#include <errno.h>
+
+int main() {
+    struct termios t;
+    if (tcgetattr(0, &t) == 0
+	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+	cfsetospeed(&t, 0);
+	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
+	return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no; then
+	AC_TRY_RUN([
+#include <termio.h>
+#include <errno.h>
+
+int main() {
+    struct termio t;
+    if (ioctl(0, TCGETA, &t) == 0
+	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
+	return 0;
+    }
+    return 1;
+    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    fi
+    if test $tcl_cv_api_serial = no; then
+	AC_TRY_RUN([
+#include <sgtty.h>
+#include <errno.h>
+
+int main() {
+    struct sgttyb t;
+    if (ioctl(0, TIOCGETP, &t) == 0
+	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
+	t.sg_ospeed = 0;
+	t.sg_flags |= ODDP | EVENP | RAW;
+	return 0;
+    }
+    return 1;
+}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
+    fi])
+    case $tcl_cv_api_serial in
+	termios) AC_DEFINE(USE_TERMIOS, 1, [Use the termios API for serial lines]);;
+	termio)  AC_DEFINE(USE_TERMIO, 1, [Use the termio API for serial lines]);;
+	sgtty)   AC_DEFINE(USE_SGTTY, 1, [Use the sgtty API for serial lines]);;
+    esac
+])
+
+#--------------------------------------------------------------------
+# SC_MISSING_POSIX_HEADERS
+#
+#	Supply substitutes for missing POSIX header files.  Special
+#	notes:
+#	    - stdlib.h doesn't define strtol, strtoul, or
+#	      strtod insome versions of SunOS
+#	    - some versions of string.h don't declare procedures such
+#	      as strstr
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Defines some of the following vars:
+#		NO_DIRENT_H
+#		NO_VALUES_H
+#		HAVE_LIMITS_H or NO_LIMITS_H
+#		NO_STDLIB_H
+#		NO_STRING_H
+#		NO_SYS_WAIT_H
+#		NO_DLFCN_H
+#		HAVE_SYS_PARAM_H
+#
+#		HAVE_STRING_H ?
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
+    AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
+    AC_TRY_LINK([#include <sys/types.h>
+#include <dirent.h>], [
+#ifndef _POSIX_SOURCE
+#   ifdef __Lynx__
+	/*
+	 * Generate compilation error to make the test fail:  Lynx headers
+	 * are only valid if really in the POSIX environment.
+	 */
+
+	missing_procedure();
+#   endif
+#endif
+DIR *d;
+struct dirent *entryPtr;
+char *p;
+d = opendir("foobar");
+entryPtr = readdir(d);
+p = entryPtr->d_name;
+closedir(d);
+], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
+
+    if test $tcl_cv_dirent_h = no; then
+	AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
+    fi
+
+    AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H, 1, [Do we have <float.h>?])])
+    AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H, 1, [Do we have <values.h>?])])
+    AC_CHECK_HEADER(limits.h,
+	[AC_DEFINE(HAVE_LIMITS_H, 1, [Do we have <limits.h>?])],
+	[AC_DEFINE(NO_LIMITS_H, 1, [Do we have <limits.h>?])])
+    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
+    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
+    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
+    AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
+    if test $tcl_ok = 0; then
+	AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
+    fi
+    AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
+    AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
+    AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)
+
+    # See also memmove check below for a place where NO_STRING_H can be
+    # set and why.
+
+    if test $tcl_ok = 0; then
+	AC_DEFINE(NO_STRING_H, 1, [Do we have <string.h>?])
+    fi
+
+    AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H, 1, [Do we have <sys/wait.h>?])])
+    AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H, 1, [Do we have <dlfcn.h>?])])
+
+    # OS/390 lacks sys/param.h (and doesn't need it, by chance).
+    AC_HAVE_HEADERS(sys/param.h)
+])
+
+#--------------------------------------------------------------------
+# SC_PATH_X
+#
+#	Locate the X11 header files and the X11 library archive.  Try
+#	the ac_path_x macro first, but if it doesn't find the X stuff
+#	(e.g. because there's no xmkmf program) then check through
+#	a list of possible directories.  Under some conditions the
+#	autoconf macro will return an include directory that contains
+#	no include files, so double-check its result just to be safe.
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Sets the the following vars:
+#		XINCLUDES
+#		XLIBSW
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_PATH_X], [
+    AC_PATH_X
+    not_really_there=""
+    if test "$no_x" = ""; then
+	if test "$x_includes" = ""; then
+	    AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
+	else
+	    if test ! -r $x_includes/X11/Intrinsic.h; then
+		not_really_there="yes"
+	    fi
+	fi
+    fi
+    if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
+	AC_MSG_CHECKING([for X11 header files])
+	found_xincludes="no"
+	AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
+	if test "$found_xincludes" = "no"; then
+	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
+	    for i in $dirs ; do
+		if test -r $i/X11/Intrinsic.h; then
+		    AC_MSG_RESULT([$i])
+		    XINCLUDES=" -I$i"
+		    found_xincludes="yes"
+		    break
+		fi
+	    done
+	fi
+    else
+	if test "$x_includes" != ""; then
+	    XINCLUDES="-I$x_includes"
+	    found_xincludes="yes"
+	fi
+    fi
+    if test found_xincludes = "no"; then
+	AC_MSG_RESULT([couldn't find any!])
+    fi
+
+    if test "$no_x" = yes; then
+	AC_MSG_CHECKING([for X11 libraries])
+	XLIBSW=nope
+	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
+	for i in $dirs ; do
+	    if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl -o -r $i/libX11.dylib; then
+		AC_MSG_RESULT([$i])
+		XLIBSW="-L$i -lX11"
+		x_libraries="$i"
+		break
+	    fi
+	done
+    else
+	if test "$x_libraries" = ""; then
+	    XLIBSW=-lX11
+	else
+	    XLIBSW="-L$x_libraries -lX11"
+	fi
+    fi
+    if test "$XLIBSW" = nope ; then
+	AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
+    fi
+    if test "$XLIBSW" = nope ; then
+	AC_MSG_RESULT([could not find any!  Using -lX11.])
+	XLIBSW=-lX11
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_BLOCKING_STYLE
+#
+#	The statements below check for systems where POSIX-style
+#	non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented. 
+#	On these systems (mostly older ones), use the old BSD-style
+#	FIONBIO approach instead.
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Defines some of the following vars:
+#		HAVE_SYS_IOCTL_H
+#		HAVE_SYS_FILIO_H
+#		USE_FIONBIO
+#		O_NONBLOCK
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_BLOCKING_STYLE], [
+    AC_CHECK_HEADERS(sys/ioctl.h)
+    AC_CHECK_HEADERS(sys/filio.h)
+    SC_CONFIG_SYSTEM
+    AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
+    case $system in
+	# There used to be code here to use FIONBIO under AIX.  However, it
+	# was reported that FIONBIO doesn't work under AIX 3.2.5.  Since
+	# using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
+	# code (JO, 5/31/97).
+
+	OSF*)
+	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
+	    AC_MSG_RESULT([FIONBIO])
+	    ;;
+	SunOS-4*)
+	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
+	    AC_MSG_RESULT([FIONBIO])
+	    ;;
+	*)
+	    AC_MSG_RESULT([O_NONBLOCK])
+	    ;;
+    esac
+])
+
+#--------------------------------------------------------------------
+# SC_TIME_HANLDER
+#
+#	Checks how the system deals with time.h, what time structures
+#	are used on the system, and what fields the structures have.
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Defines some of the following vars:
+#		USE_DELTA_FOR_TZ
+#		HAVE_TM_GMTOFF
+#		HAVE_TM_TZADJ
+#		HAVE_TIMEZONE_VAR
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TIME_HANDLER], [
+    AC_CHECK_HEADERS(sys/time.h)
+    AC_HEADER_TIME
+    AC_STRUCT_TIMEZONE
+
+    AC_CHECK_FUNCS(gmtime_r localtime_r mktime)
+
+    AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
+	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
+	    tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
+    if test $tcl_cv_member_tm_tzadj = yes ; then
+	AC_DEFINE(HAVE_TM_TZADJ, 1, [Should we use the tm_tzadj field of struct tm?])
+    fi
+
+    AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
+	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
+	    tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
+    if test $tcl_cv_member_tm_gmtoff = yes ; then
+	AC_DEFINE(HAVE_TM_GMTOFF, 1, [Should we use the tm_gmtoff field of struct tm?])
+    fi
+
+    #
+    # Its important to include time.h in this check, as some systems
+    # (like convex) have timezone functions, etc.
+    #
+    AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
+	AC_TRY_COMPILE([#include <time.h>],
+	    [extern long timezone;
+	    timezone += 1;
+	    exit (0);],
+	    tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
+    if test $tcl_cv_timezone_long = yes ; then
+	AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
+    else
+	#
+	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
+	#
+	AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
+	    AC_TRY_COMPILE([#include <time.h>],
+		[extern time_t timezone;
+		timezone += 1;
+		exit (0);],
+		tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
+	if test $tcl_cv_timezone_time = yes ; then
+	    AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
+	fi
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_BUGGY_STRTOD
+#
+#	Under Solaris 2.4, strtod returns the wrong value for the
+#	terminating character under some conditions.  Check for this
+#	and if the problem exists use a substitute procedure
+#	"fixstrtod" (provided by Tcl) that corrects the error.
+#	Also, on Compaq's Tru64 Unix 5.0,
+#	strtod(" ") returns 0.0 instead of a failure to convert.
+#
+# Arguments:
+#	none
+#	
+# Results:
+#
+#	Might defines some of the following vars:
+#		strtod (=fixstrtod)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_BUGGY_STRTOD], [
+    AC_CHECK_FUNC(strtod, tcl_strtod=1, tcl_strtod=0)
+    if test "$tcl_strtod" = 1; then
+	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
+	    AC_TRY_RUN([
+		extern double strtod();
+		int main() {
+		    char *infString="Inf", *nanString="NaN", *spaceString=" ";
+		    char *term;
+		    double value;
+		    value = strtod(infString, &term);
+		    if ((term != infString) && (term[-1] == 0)) {
+			exit(1);
+		    }
+		    value = strtod(nanString, &term);
+		    if ((term != nanString) && (term[-1] == 0)) {
+			exit(1);
+		    }
+		    value = strtod(spaceString, &term);
+		    if (term == (spaceString+1)) {
+			exit(1);
+		    }
+		    exit(0);
+		}], tcl_cv_strtod_buggy=ok, tcl_cv_strtod_buggy=buggy,
+		    tcl_cv_strtod_buggy=buggy)])
+	if test "$tcl_cv_strtod_buggy" = buggy; then
+	    AC_LIBOBJ([fixstrtod])
+	    USE_COMPAT=1
+	    AC_DEFINE(strtod, fixstrtod, [Do we want to use the strtod() in compat?])
+	fi
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_LINK_LIBS
+#
+#	Search for the libraries needed to link the Tcl shell.
+#	Things like the math library (-lm) and socket stuff (-lsocket vs.
+#	-lnsl) are dealt with here.
+#
+# Arguments:
+#	None.
+#	
+# Results:
+#
+#	Might append to the following vars:
+#		LIBS
+#		MATH_LIBS
+#
+#	Might define the following vars:
+#		HAVE_NET_ERRNO_H
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_LINK_LIBS], [
+    #--------------------------------------------------------------------
+    # On a few very rare systems, all of the libm.a stuff is
+    # already in libc.a.  Set compiler flags accordingly.
+    # Also, Linux requires the "ieee" library for math to work
+    # right (and it must appear before "-lm").
+    #--------------------------------------------------------------------
+
+    AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
+    AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])
+
+    #--------------------------------------------------------------------
+    # Interactive UNIX requires -linet instead of -lsocket, plus it
+    # needs net/errno.h to define the socket-related error codes.
+    #--------------------------------------------------------------------
+
+    AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
+    AC_CHECK_HEADER(net/errno.h, [
+	AC_DEFINE(HAVE_NET_ERRNO_H, 1, [Do we have <net/errno.h>?])])
+
+    #--------------------------------------------------------------------
+    #	Check for the existence of the -lsocket and -lnsl libraries.
+    #	The order here is important, so that they end up in the right
+    #	order in the command line generated by make.  Here are some
+    #	special considerations:
+    #	1. Use "connect" and "accept" to check for -lsocket, and
+    #	   "gethostbyname" to check for -lnsl.
+    #	2. Use each function name only once:  can't redo a check because
+    #	   autoconf caches the results of the last check and won't redo it.
+    #	3. Use -lnsl and -lsocket only if they supply procedures that
+    #	   aren't already present in the normal libraries.  This is because
+    #	   IRIX 5.2 has libraries, but they aren't needed and they're
+    #	   bogus:  they goof up name resolution if used.
+    #	4. On some SVR4 systems, can't use -lsocket without -lnsl too.
+    #	   To get around this problem, check for both libraries together
+    #	   if -lsocket doesn't work by itself.
+    #--------------------------------------------------------------------
+
+    tcl_checkBoth=0
+    AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1)
+    if test "$tcl_checkSocket" = 1; then
+	AC_CHECK_FUNC(setsockopt, , [AC_CHECK_LIB(socket, setsockopt,
+	    LIBS="$LIBS -lsocket", tcl_checkBoth=1)])
+    fi
+    if test "$tcl_checkBoth" = 1; then
+	tk_oldLibs=$LIBS
+	LIBS="$LIBS -lsocket -lnsl"
+	AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs])
+    fi
+    AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, gethostbyname,
+	    [LIBS="$LIBS -lnsl"])])
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_EARLY_FLAGS
+#
+#	Check for what flags are needed to be passed so the correct OS
+#	features are available.
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		_ISOC99_SOURCE
+#		_LARGEFILE64_SOURCE
+#		_LARGEFILE_SOURCE64
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_EARLY_FLAG],[
+    AC_CACHE_VAL([tcl_cv_flag_]translit($1,[A-Z],[a-z]),
+	AC_TRY_COMPILE([$2], $3, [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no,
+	    AC_TRY_COMPILE([[#define ]$1[ 1
+]$2], $3,
+		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
+		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)))
+    if test ["x${tcl_cv_flag_]translit($1,[A-Z],[a-z])[}" = "xyes"] ; then
+	AC_DEFINE($1, 1, [Add the ]$1[ flag when building])
+	tcl_flags="$tcl_flags $1"
+    fi
+])
+
+AC_DEFUN([SC_TCL_EARLY_FLAGS],[
+    AC_MSG_CHECKING([for required early compiler flags])
+    tcl_flags=""
+    SC_TCL_EARLY_FLAG(_ISOC99_SOURCE,[#include <stdlib.h>],
+	[char *p = (char *)strtoll; char *q = (char *)strtoull;])
+    SC_TCL_EARLY_FLAG(_LARGEFILE64_SOURCE,[#include <sys/stat.h>],
+	[struct stat64 buf; int i = stat64("/", &buf);])
+    SC_TCL_EARLY_FLAG(_LARGEFILE_SOURCE64,[#include <sys/stat.h>],
+	[char *p = (char *)open64;])
+    if test "x${tcl_flags}" = "x" ; then
+	AC_MSG_RESULT([none])
+    else
+	AC_MSG_RESULT([${tcl_flags}])
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_64BIT_FLAGS
+#
+#	Check for what is defined in the way of 64-bit features.
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		TCL_WIDE_INT_IS_LONG
+#		TCL_WIDE_INT_TYPE
+#		HAVE_STRUCT_DIRENT64
+#		HAVE_STRUCT_STAT64
+#		HAVE_TYPE_OFF64_T
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_64BIT_FLAGS], [
+    AC_MSG_CHECKING([for 64-bit integer type])
+    AC_CACHE_VAL(tcl_cv_type_64bit,[
+	tcl_cv_type_64bit=none
+	# See if the compiler knows natively about __int64
+	AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
+	    tcl_type_64bit=__int64, tcl_type_64bit="long long")
+	# See if we should use long anyway  Note that we substitute in the
+	# type that is our current guess for a 64-bit type inside this check
+	# program, so it should be modified only carefully...
+        AC_TRY_COMPILE(,[switch (0) { 
+            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ; 
+        }],tcl_cv_type_64bit=${tcl_type_64bit})])
+    if test "${tcl_cv_type_64bit}" = none ; then
+	AC_DEFINE(TCL_WIDE_INT_IS_LONG, 1, [Are wide integers to be implemented with C 'long's?])
+	AC_MSG_RESULT([using long])
+    else
+	AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit},
+	    [What type should be used to define wide integers?])
+	AC_MSG_RESULT([${tcl_cv_type_64bit}])
+
+	# Now check for auxiliary declarations
+	AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
+	    AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/dirent.h>],[struct dirent64 p;],
+		tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
+	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
+	    AC_DEFINE(HAVE_STRUCT_DIRENT64, 1, [Is 'struct dirent64' in <sys/types.h>?])
+	fi
+
+	AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
+	    AC_TRY_COMPILE([#include <sys/stat.h>],[struct stat64 p;
+],
+		tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
+	if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
+	    AC_DEFINE(HAVE_STRUCT_STAT64, 1, [Is 'struct stat64' in <sys/stat.h>?])
+	fi
+
+	AC_CHECK_FUNCS(open64 lseek64)
+	AC_MSG_CHECKING([for off64_t])
+	AC_CACHE_VAL(tcl_cv_type_off64_t,[
+	    AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
+],
+		tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
+	dnl Define HAVE_TYPE_OFF64_T only when the off64_t type and the
+	dnl functions lseek64 and open64 are defined.
+	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
+	        test "x${ac_cv_func_lseek64}" = "xyes" && \
+	        test "x${ac_cv_func_open64}" = "xyes" ; then
+	    AC_DEFINE(HAVE_TYPE_OFF64_T, 1, [Is off64_t in <sys/types.h>?])
+	    AC_MSG_RESULT([yes])
+	else
+	    AC_MSG_RESULT([no])
+	fi
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_CFG_ENCODING	TIP #59
+#
+#	Declare the encoding to use for embedded configuration information.
+#
+# Arguments:
+#	None.
+#
+# Results:
+#	Might append to the following vars:
+#		DEFS	(implicit)
+#
+#	Will define the following vars:
+#		TCL_CFGVAL_ENCODING
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_CFG_ENCODING], [
+    AC_ARG_WITH(encoding,
+	AC_HELP_STRING([--with-encoding],
+	    [encoding for configuration values (default: iso8859-1)]),
+	with_tcencoding=${withval})
+
+    if test x"${with_tcencoding}" != x ; then
+	AC_DEFINE_UNQUOTED(TCL_CFGVAL_ENCODING,"${with_tcencoding}",
+	    [What encoding should be used for embedded configuration info?])
+    else
+	AC_DEFINE(TCL_CFGVAL_ENCODING,"iso8859-1",
+	    [What encoding should be used for embedded configuration info?])
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_CHECK_BROKEN_FUNC
+#
+#	Check for broken function.
+#
+# Arguments:
+#	funcName - function to test for
+#	advancedTest - the advanced test to run if the function is present
+#
+# Results:
+#	Might cause compatability versions of the function to be used.
+#	Might affect the following vars:
+#		USE_COMPAT	(implicit)
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_CHECK_BROKEN_FUNC],[
+    AC_CHECK_FUNC($1, tcl_ok=1, tcl_ok=0)
+    if test ["$tcl_ok"] = 1; then
+	AC_CACHE_CHECK([proper ]$1[ implementation], [tcl_cv_]$1[_unbroken],
+	    AC_TRY_RUN([[int main() {]$2[}]],[tcl_cv_]$1[_unbroken]=ok,
+		[tcl_cv_]$1[_unbroken]=broken,[tcl_cv_]$1[_unbroken]=unknown))
+	if test ["$tcl_cv_]$1[_unbroken"] = "ok"; then
+	    tcl_ok=1
+	else
+	    tcl_ok=0
+	fi
+    fi
+    if test ["$tcl_ok"] = 0; then
+	AC_LIBOBJ($1)
+	USE_COMPAT=1
+    fi
+])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETHOSTBYADDR_R
+#
+#	Check if we have MT-safe variant of gethostbyaddr().
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		HAVE_GETHOSTBYADDR_R
+#		HAVE_GETHOSTBYADDR_R_7
+#		HAVE_GETHOSTBYADDR_R_8
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
+    AC_CACHE_CHECK([for gethostbyaddr_r with 7 args], tcl_cv_api_gethostbyaddr_r_7, [
+    AC_TRY_COMPILE([
+	#include <netdb.h>
+    ], [
+	char *addr;
+	int length;
+	int type;
+	struct hostent *result;
+	char buffer[2048];
+	int buflen = 2048;
+	int h_errnop;
+
+	(void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
+			       &h_errnop);
+    ], tcl_cv_api_gethostbyaddr_r_7=yes, tcl_cv_api_gethostbyaddr_r_7=no)])
+    tcl_ok=$tcl_cv_api_gethostbyaddr_r_7
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1,
+	    [Define to 1 if gethostbyaddr_r takes 7 args.])
+    else
+	AC_CACHE_CHECK([for gethostbyaddr_r with 8 args], tcl_cv_api_gethostbyaddr_r_8, [
+	AC_TRY_COMPILE([
+	    #include <netdb.h>
+	], [
+	    char *addr;
+	    int length;
+	    int type;
+	    struct hostent *result, *resultp;
+	    char buffer[2048];
+	    int buflen = 2048;
+	    int h_errnop;
+
+	    (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
+				   &resultp, &h_errnop);
+	], tcl_cv_api_gethostbyaddr_r_8=yes, tcl_cv_api_gethostbyaddr_r_8=no)])
+	tcl_ok=$tcl_cv_api_gethostbyaddr_r_8
+	if test "$tcl_ok" = yes; then
+	    AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1,
+		[Define to 1 if gethostbyaddr_r takes 8 args.])
+	fi
+    fi
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETHOSTBYADDR_R, 1,
+	    [Define to 1 if gethostbyaddr_r is available.])
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETHOSTBYNAME_R
+#
+#	Check to see what variant of gethostbyname_r() we have.
+#	Based on David Arnold's example from the comp.programming.threads
+#	FAQ Q213
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		HAVE_GETHOSTBYADDR_R
+#		HAVE_GETHOSTBYADDR_R_3
+#		HAVE_GETHOSTBYADDR_R_5
+#		HAVE_GETHOSTBYADDR_R_6
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
+    AC_CACHE_CHECK([for gethostbyname_r with 6 args], tcl_cv_api_gethostbyname_r_6, [
+    AC_TRY_COMPILE([
+	#include <netdb.h>
+    ], [
+	char *name;
+	struct hostent *he, *res;
+	char buffer[2048];
+	int buflen = 2048;
+	int h_errnop;
+
+	(void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop);
+    ], tcl_cv_api_gethostbyname_r_6=yes, tcl_cv_api_gethostbyname_r_6=no)])
+    tcl_ok=$tcl_cv_api_gethostbyname_r_6
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1,
+	    [Define to 1 if gethostbyname_r takes 6 args.])
+    else
+	AC_CACHE_CHECK([for gethostbyname_r with 5 args], tcl_cv_api_gethostbyname_r_5, [
+	AC_TRY_COMPILE([
+	    #include <netdb.h>
+	], [
+	    char *name;
+	    struct hostent *he;
+	    char buffer[2048];
+	    int buflen = 2048;
+	    int h_errnop;
+
+	    (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop);
+	], tcl_cv_api_gethostbyname_r_5=yes, tcl_cv_api_gethostbyname_r_5=no)])
+	tcl_ok=$tcl_cv_api_gethostbyname_r_5
+	if test "$tcl_ok" = yes; then
+	    AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1,
+		[Define to 1 if gethostbyname_r takes 5 args.])
+	else
+	    AC_CACHE_CHECK([for gethostbyname_r with 3 args], tcl_cv_api_gethostbyname_r_3, [
+	    AC_TRY_COMPILE([
+		#include <netdb.h>
+	    ], [
+		char *name;
+		struct hostent *he;
+		struct hostent_data data;
+
+		(void) gethostbyname_r(name, he, &data);
+	    ], tcl_cv_api_gethostbyname_r_3=yes, tcl_cv_api_gethostbyname_r_3=no)])
+	    tcl_ok=$tcl_cv_api_gethostbyname_r_3
+	    if test "$tcl_ok" = yes; then
+		AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1,
+		    [Define to 1 if gethostbyname_r takes 3 args.])
+	    fi
+	fi
+    fi
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETHOSTBYNAME_R, 1,
+	    [Define to 1 if gethostbyname_r is available.])
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETADDRINFO
+#
+#	Check if we have 'getaddrinfo'
+#
+# Arguments:
+#	None
+#	
+# Results:
+#	Might define the following vars:
+#		HAVE_GETADDRINFO
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETADDRINFO], [AC_CHECK_FUNC(getaddrinfo, [
+    AC_CACHE_CHECK([for working getaddrinfo], tcl_cv_api_getaddrinfo, [
+    AC_TRY_COMPILE([
+	#include <netdb.h>
+    ], [
+	const char *name, *port;
+	struct addrinfo *aiPtr, hints;
+	(void)getaddrinfo(name,port, &hints, &aiPtr);
+	(void)freeaddrinfo(aiPtr);
+    ], tcl_cv_api_getaddrinfo=yes, tcl_cv_getaddrinfo=no)])
+    tcl_ok=$tcl_cv_api_getaddrinfo
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETADDRINFO, 1,
+	    [Define to 1 if getaddrinfo is available.])
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETPWUID_R
+#
+#	Check if we have MT-safe variant of getpwuid() and if yes,
+#	which one exactly.
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		HAVE_GETPWUID_R
+#		HAVE_GETPWUID_R_4
+#		HAVE_GETPWUID_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
+    AC_CACHE_CHECK([for getpwuid_r with 5 args], tcl_cv_api_getpwuid_r_5, [
+    AC_TRY_COMPILE([
+	#include <sys/types.h>
+	#include <pwd.h>
+    ], [
+	uid_t uid;
+	struct passwd pw, *pwp;
+	char buf[512];
+	int buflen = 512;
+
+	(void) getpwuid_r(uid, &pw, buf, buflen, &pwp);
+    ], tcl_cv_api_getpwuid_r_5=yes, tcl_cv_api_getpwuid_r_5=no)])
+    tcl_ok=$tcl_cv_api_getpwuid_r_5
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETPWUID_R_5, 1,
+	    [Define to 1 if getpwuid_r takes 5 args.])
+    else
+	AC_CACHE_CHECK([for getpwuid_r with 4 args], tcl_cv_api_getpwuid_r_4, [
+	AC_TRY_COMPILE([
+	    #include <sys/types.h>
+	    #include <pwd.h>
+	], [
+	    uid_t uid;
+	    struct passwd pw;
+	    char buf[512];
+	    int buflen = 512;
+
+	    (void)getpwnam_r(uid, &pw, buf, buflen);
+	], tcl_cv_api_getpwuid_r_4=yes, tcl_cv_api_getpwuid_r_4=no)])
+	tcl_ok=$tcl_cv_api_getpwuid_r_4
+	if test "$tcl_ok" = yes; then
+	    AC_DEFINE(HAVE_GETPWUID_R_4, 1,
+		[Define to 1 if getpwuid_r takes 4 args.])
+	fi
+    fi
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETPWUID_R, 1,
+	    [Define to 1 if getpwuid_r is available.])
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETPWNAM_R
+#
+#	Check if we have MT-safe variant of getpwnam() and if yes,
+#	which one exactly.
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		HAVE_GETPWNAM_R
+#		HAVE_GETPWNAM_R_4
+#		HAVE_GETPWNAM_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
+    AC_CACHE_CHECK([for getpwnam_r with 5 args], tcl_cv_api_getpwnam_r_5, [
+    AC_TRY_COMPILE([
+	#include <sys/types.h>
+	#include <pwd.h>
+    ], [
+	char *name;
+	struct passwd pw, *pwp;
+	char buf[512];
+	int buflen = 512;
+
+	(void) getpwnam_r(name, &pw, buf, buflen, &pwp);
+    ], tcl_cv_api_getpwnam_r_5=yes, tcl_cv_api_getpwnam_r_5=no)])
+    tcl_ok=$tcl_cv_api_getpwnam_r_5
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETPWNAM_R_5, 1,
+	    [Define to 1 if getpwnam_r takes 5 args.])
+    else
+	AC_CACHE_CHECK([for getpwnam_r with 4 args], tcl_cv_api_getpwnam_r_4, [
+	AC_TRY_COMPILE([
+	    #include <sys/types.h>
+	    #include <pwd.h>
+	], [
+	    char *name;
+	    struct passwd pw;
+	    char buf[512];
+	    int buflen = 512;
+
+	    (void)getpwnam_r(name, &pw, buf, buflen);
+	], tcl_cv_api_getpwnam_r_4=yes, tcl_cv_api_getpwnam_r_4=no)])
+	tcl_ok=$tcl_cv_api_getpwnam_r_4
+	if test "$tcl_ok" = yes; then
+	    AC_DEFINE(HAVE_GETPWNAM_R_4, 1,
+		[Define to 1 if getpwnam_r takes 4 args.])
+	fi
+    fi
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETPWNAM_R, 1,
+	    [Define to 1 if getpwnam_r is available.])
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETGRGID_R
+#
+#	Check if we have MT-safe variant of getgrgid() and if yes,
+#	which one exactly.
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		HAVE_GETGRGID_R
+#		HAVE_GETGRGID_R_4
+#		HAVE_GETGRGID_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
+    AC_CACHE_CHECK([for getgrgid_r with 5 args], tcl_cv_api_getgrgid_r_5, [
+    AC_TRY_COMPILE([
+	#include <sys/types.h>
+	#include <grp.h>
+    ], [
+	gid_t gid;
+	struct group gr, *grp;
+	char buf[512];
+	int buflen = 512;
+
+	(void) getgrgid_r(gid, &gr, buf, buflen, &grp);
+    ], tcl_cv_api_getgrgid_r_5=yes, tcl_cv_api_getgrgid_r_5=no)])
+    tcl_ok=$tcl_cv_api_getgrgid_r_5
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETGRGID_R_5, 1,
+	    [Define to 1 if getgrgid_r takes 5 args.])
+    else
+	AC_CACHE_CHECK([for getgrgid_r with 4 args], tcl_cv_api_getgrgid_r_4, [
+	AC_TRY_COMPILE([
+	    #include <sys/types.h>
+	    #include <grp.h>
+	], [
+	    gid_t gid;
+	    struct group gr;
+	    char buf[512];
+	    int buflen = 512;
+
+	    (void)getgrgid_r(gid, &gr, buf, buflen);
+	], tcl_cv_api_getgrgid_r_4=yes, tcl_cv_api_getgrgid_r_4=no)])
+	tcl_ok=$tcl_cv_api_getgrgid_r_4
+	if test "$tcl_ok" = yes; then
+	    AC_DEFINE(HAVE_GETGRGID_R_4, 1,
+		[Define to 1 if getgrgid_r takes 4 args.])
+	fi
+    fi
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETGRGID_R, 1,
+	    [Define to 1 if getgrgid_r is available.])
+    fi
+])])
+
+#--------------------------------------------------------------------
+# SC_TCL_GETGRNAM_R
+#
+#	Check if we have MT-safe variant of getgrnam() and if yes,
+#	which one exactly.
+#
+# Arguments:
+#	None
+#	
+# Results:
+#
+#	Might define the following vars:
+#		HAVE_GETGRNAM_R
+#		HAVE_GETGRNAM_R_4
+#		HAVE_GETGRNAM_R_5
+#
+#--------------------------------------------------------------------
+
+AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
+    AC_CACHE_CHECK([for getgrnam_r with 5 args], tcl_cv_api_getgrnam_r_5, [
+    AC_TRY_COMPILE([
+	#include <sys/types.h>
+	#include <grp.h>
+    ], [
+	char *name;
+	struct group gr, *grp;
+	char buf[512];
+	int buflen = 512;
+
+	(void) getgrnam_r(name, &gr, buf, buflen, &grp);
+    ], tcl_cv_api_getgrnam_r_5=yes, tcl_cv_api_getgrnam_r_5=no)])
+    tcl_ok=$tcl_cv_api_getgrnam_r_5
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETGRNAM_R_5, 1,
+	    [Define to 1 if getgrnam_r takes 5 args.])
+    else
+	AC_CACHE_CHECK([for getgrnam_r with 4 args], tcl_cv_api_getgrnam_r_4, [
+	AC_TRY_COMPILE([
+	    #include <sys/types.h>
+	    #include <grp.h>
+	], [
+	    char *name;
+	    struct group gr;
+	    char buf[512];
+	    int buflen = 512;
+
+	    (void)getgrnam_r(name, &gr, buf, buflen);
+	], tcl_cv_api_getgrnam_r_4=yes, tcl_cv_api_getgrnam_r_4=no)])
+	tcl_ok=$tcl_cv_api_getgrnam_r_4
+	if test "$tcl_ok" = yes; then
+	    AC_DEFINE(HAVE_GETGRNAM_R_4, 1,
+		[Define to 1 if getgrnam_r takes 4 args.])
+	fi
+    fi
+    if test "$tcl_ok" = yes; then
+	AC_DEFINE(HAVE_GETGRNAM_R, 1,
+	    [Define to 1 if getgrnam_r is available.])
+    fi
+])])
+
+# Local Variables:
+# mode: autoconf
+# End:
diff --git a/build/tcmalloc.m4 b/build/tcmalloc.m4
new file mode 100644
index 00000000..e369d739
--- /dev/null
+++ b/build/tcmalloc.m4
@@ -0,0 +1,54 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl tcmalloc.m4: Trafficserver's tcmalloc autoconf macros
+dnl
+
+dnl This is kinda fugly, but need a way to both specify a directory and which
+dnl of the many tcmalloc libraries to use ...
+AC_DEFUN([TS_CHECK_TCMALLOC], [
+AC_ARG_WITH([tcmalloc-lib],
+  [AS_HELP_STRING([--with-tcmalloc-lib],[specify the tcmalloc library to use [default=tcmalloc]])],
+  [
+  with_tcmalloc_lib="$withval"
+  ],[
+  with_tcmalloc_lib="tcmalloc"
+  ]
+)
+
+has_tcmalloc=0
+AC_ARG_WITH([tcmalloc], [AC_HELP_STRING([--with-tcmalloc=DIR], [use the tcmalloc library])],
+[
+  if test "$withval" != "no"; then
+    if test "x${enable_jemalloc}" = "xyes"; then
+      AC_MSG_ERROR([Cannot compile with both tcmalloc and jemalloc])
+    fi
+    tcmalloc_have_libs=0
+    if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+      tcmalloc_ldflags="$withval/lib"
+      TS_ADDTO(LDFLAGS, [-L${tcmalloc_ldflags}])
+      TS_ADDTO(LIBTOOL_LINK_FLAGS, [-rpath ${tcmalloc_ldflags}])
+    fi
+    AC_SEARCH_LIBS([tc_cfree], ${with_tcmalloc_lib}, [tcmalloc_have_lib=1])
+    if test "$tcmalloc_have_lib" != "0"; then
+      TS_ADDTO(LIBS, [-l${with_tcmalloc_lib}])
+      has_tcmalloc=1      
+    fi
+  fi
+])
+AC_SUBST(has_tcmalloc)
+])
diff --git a/build/xml.m4 b/build/xml.m4
new file mode 100644
index 00000000..b639054c
--- /dev/null
+++ b/build/xml.m4
@@ -0,0 +1,200 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl xml.m4 Trafficserver's Xml autoconf macros
+dnl
+
+dnl
+dnl TS_CHECK_XML: look for xml libraries and headers
+dnl
+AC_DEFUN([TS_CHECK_XML], [
+  enable_xml=no
+  AC_MSG_CHECKING(["For XML parser"])
+  AC_ARG_WITH(xml, [AC_HELP_STRING([--with-xml=(expat|libxml2)],[select XML parser])],
+  [
+    if test "$withval" = "expat" ; then
+      TS_CHECK_XML_EXPAT
+    elif test "$withval" = "libxml2" ; then
+      TS_CHECK_XML_LIBXML2
+    else
+      AC_MSG_ERROR([Unrecognised --with-xml option])
+    fi
+  ],
+  [
+    TS_CHECK_XML_LIBXML2
+    if test "$enable_xml" = "no"; then
+      TS_CHECK_XML_EXPAT
+    fi
+  ])
+  if test "$enable_xml" = "no"; then
+    AC_MSG_ERROR([An XML parser (expat or libxml2) is required.])
+  fi
+])
+dnl
+
+AC_DEFUN([TS_CHECK_XML_LIBXML2], [
+  enable_libxml2=no
+  libxml2_include=""
+  libxml2_ldflags=""
+  AC_ARG_WITH(libxml2, [AC_HELP_STRING([--with-libxml2=DIR],[use a specific libxml2 library])],
+  [
+    if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+      if test "$withval" = "yes"; then
+        enable_libxml2=yes
+        libxml2_include="/usr/include/libxml2"
+      elif test "$withval" != "no"; then
+        enable_libxml2=yes
+        libxml2_include="$withval/include/libxml2"
+        libxml2_ldflags="-L$withval/lib"
+      fi
+    fi
+  ])
+  if test ${enable_libxml2} = "no"; then
+    enable_libxml2=yes
+    libxml2_include="/usr/include/libxml2"
+  fi
+  if test ${enable_libxml2} != "no"; then
+    AC_CACHE_CHECK([libxml2], [ts_cv_libxml2], [
+      ts_libxml2_CPPFLAGS=$CPPFLAGS
+      ts_libxml2_LIBS="$LIBS"
+      ts_libxml2_LDFLAGS="$LDFLAGS"
+      CPPFLAGS="$CPPFLAGS -I$libxml2_include"
+      LDFLAGS="$LDFLAGS $libxml2_ldflags"
+      LIBS="$LIBS -lxml2"
+      AC_TRY_LINK(
+        [#include <libxml/parser.h>],
+        [xmlSAXHandler sax; xmlCreatePushParserCtxt(&sax, NULL, NULL, 0, NULL);],
+        [ts_cv_libxml2=yes],
+        [ts_cv_libxml2=no],
+      )
+      CPPFLAGS=$ts_libxml2_CPPFLAGS
+      LIBS=$ts_libxml2_LIBS
+      LDFLAGS=$ts_libxml2_LDFLAGS
+    ])
+    if test $ts_cv_libxml2 = yes ; then
+      AC_DEFINE([HAVE_LIBXML2], 1, [Using libxml2])
+      if test -d "$libxml2_include" ; then
+        TS_ADDTO(CPPFLAGS, [-I${libxml2_include}])
+      fi
+      if test -d "$libxml2_ldflags" ; then
+        TS_ADDTO(LDFLAGS, [-L${libxml2_ldflags}])
+        TS_ADDTO(LIBTOOL_LINK_FLAGS, [-R${libxml2_ldflags}])
+      fi
+      TS_ADDTO(LIBS, -lxml2)
+      enable_xml=yes
+    else
+      AC_MSG_WARN(["Failed to find libxml2"])
+    fi
+  fi
+])
+
+AC_DEFUN([TS_CHECK_XML_EXPAT], [
+enable_expat=no
+AC_ARG_WITH(expat, [AC_HELP_STRING([--with-expat=DIR],[use a specific Expat library])],
+[
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    expat_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_expat=yes
+      case "$withval" in
+      *":"*)
+        expat_include="`echo $withval |sed -e 's/:.*$//'`"
+        expat_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        AC_MSG_CHECKING(checking for Expat includes in $expat_include libs in $expat_ldflags )
+        ;;
+      *)
+        expat_include="$withval/include"
+        expat_ldflags="$withval/lib"
+        AC_MSG_CHECKING(checking for Expat includes in $withval)
+        ;;
+      esac
+    fi
+  fi
+])
+
+if test "x$expat_base_dir" = "x"; then
+  AC_MSG_CHECKING([for Expat location])
+  AC_CACHE_VAL(ats_cv_expat_dir,[
+  _expat_dir_list=""
+  case $host_os_def in
+    darwin)
+    for dir in "`xcrun -show-sdk-path 2>/dev/null`/usr" /usr/local /usr; do
+      if test -d $dir && test -f $dir/include/expat.h; then
+        ats_cv_expat_dir=$dir
+        break
+      fi
+    done
+    ;;
+    *)
+    for dir in /usr/local /usr; do
+      if test -d $dir && test -f $dir/include/expat.h; then
+        ats_cv_expat_dir=$dir
+        break
+      fi
+    done
+    ;;
+  esac
+
+  unset _expat_dir_list
+  ])
+
+  expat_base_dir=$ats_cv_expat_dir
+  if test "x$expat_base_dir" = "x"; then
+    enable_expat=no
+    AC_MSG_RESULT([not found])
+  else
+    enable_expat=yes
+    expat_include="$expat_base_dir/include"
+    expat_ldflags="$expat_base_dir/lib"
+    AC_MSG_RESULT([${expat_base_dir}])
+  fi
+else
+  if test -d $expat_include && test -d $expat_ldflags && test -f $expat_include/expat.h; then
+    AC_MSG_RESULT([ok])
+  else
+    AC_MSG_RESULT([not found])
+  fi
+fi
+
+expath=0
+if test "$enable_expat" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  expat_have_headers=0
+  expat_have_libs=0
+  if test "$expat_base_dir" != "/usr"; then
+    TS_ADDTO(CPPFLAGS, [-I${expat_include}])
+    TS_ADDTO(LDFLAGS, [-L${expat_ldflags}])
+    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-R${expat_ldflags}])
+  fi
+  AC_SEARCH_LIBS([XML_SetUserData], [expat], [expat_have_libs=1])
+  if test "$expat_have_libs" != "0"; then
+      TS_FLAG_HEADERS(expat.h, [expat_have_headers=1])
+  fi
+  if test "$expat_have_headers" != "0"; then
+    enable_xml=yes
+
+    AC_SUBST([LIBEXPAT],["-lexpat"])
+    AC_DEFINE([HAVE_LIBEXPAT],[1],[Define to 1 if you have Expat library])
+  else
+    enable_expat=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+AC_SUBST(expath)
+])
diff --git a/build/zlib.m4 b/build/zlib.m4
new file mode 100644
index 00000000..b71a74af
--- /dev/null
+++ b/build/zlib.m4
@@ -0,0 +1,100 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl zlib.m4: Trafficserver's zlib autoconf macros
+dnl
+
+dnl
+dnl TS_CHECK_ZLIB: look for zlib libraries and headers
+dnl
+AC_DEFUN([TS_CHECK_ZLIB], [
+enable_zlib=no
+AC_ARG_WITH(zlib, [AC_HELP_STRING([--with-zlib=DIR],[use a specific zlib library])],
+[
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    zlib_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_zlib=yes
+      case "$withval" in
+      *":"*)
+        zlib_include="`echo $withval |sed -e 's/:.*$//'`"
+        zlib_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        AC_MSG_CHECKING(checking for zlib includes in $zlib_include libs in $zlib_ldflags )
+        ;;
+      *)
+        zlib_include="$withval/include"
+        zlib_ldflags="$withval/lib"
+        AC_MSG_CHECKING(checking for zlib includes in $withval)
+        ;;
+      esac
+    fi
+  fi
+])
+
+if test "x$zlib_base_dir" = "x"; then
+  AC_MSG_CHECKING([for zlib location])
+  AC_CACHE_VAL(ats_cv_zlib_dir,[
+  for dir in /usr/local /usr ; do
+    if test -d $dir && test -f $dir/include/zlib.h; then
+      ats_cv_zlib_dir=$dir
+      break
+    fi
+  done
+  ])
+  zlib_base_dir=$ats_cv_zlib_dir
+  if test "x$zlib_base_dir" = "x"; then
+    enable_zlib=no
+    AC_MSG_RESULT([not found])
+  else
+    enable_zlib=yes
+    zlib_include="$zlib_base_dir/include"
+    zlib_ldflags="$zlib_base_dir/lib"
+    AC_MSG_RESULT([$zlib_base_dir])
+  fi
+else
+  if test -d $zlib_include && test -d $zlib_ldflags && test -f $zlib_include/zlib.h; then
+    AC_MSG_RESULT([ok])
+  else
+    AC_MSG_RESULT([not found])
+  fi
+fi
+
+zlibh=0
+if test "$enable_zlib" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  zlib_have_headers=0
+  zlib_have_libs=0
+  if test "$zlib_base_dir" != "/usr"; then
+    TS_ADDTO(CPPFLAGS, [-I${zlib_include}])
+    TS_ADDTO(LDFLAGS, [-L${zlib_ldflags}])
+    TS_ADDTO(LIBTOOL_LINK_FLAGS, [-rpath ${zlib_ldflags}])
+  fi
+  AC_SEARCH_LIBS([compressBound], [z], [zlib_have_libs=1])
+  if test "$zlib_have_libs" != "0"; then
+    TS_FLAG_HEADERS(zlib.h, [zlib_have_headers=1])
+  fi
+  if test "$zlib_have_headers" != "0"; then
+    AC_SUBST(LIBZ, [-lz])
+  else
+    enable_zlib=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+AC_SUBST(zlibh)
+])
diff --git a/cmd/Makefile.am b/cmd/Makefile.am
new file mode 100644
index 00000000..58a8a68a
--- /dev/null
+++ b/cmd/Makefile.am
@@ -0,0 +1,18 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = traffic_top traffic_cop traffic_line
diff --git a/cmd/Makefile.in b/cmd/Makefile.in
new file mode 100644
index 00000000..df3a7ce1
--- /dev/null
+++ b/cmd/Makefile.in
@@ -0,0 +1,866 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
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diff --git a/cmd/traffic_cop/traffic_cop.cc b/cmd/traffic_cop/traffic_cop.cc
new file mode 100644
index 00000000..50615f24
--- /dev/null
+++ b/cmd/traffic_cop/traffic_cop.cc
@@ -0,0 +1,1840 @@
+/** @file
+
+  Main entry point for the traffic_cop application.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "I_Layout.h"
+#include "I_Version.h"
+#include "I_RecCore.h"
+#include "mgmtapi.h"
+#include "ClusterCom.h"
+
+#include <string>
+#include <map>
+
+#if defined(linux) || defined (solaris)
+#include "sys/utsname.h"
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+
+union semun
+{
+  int val;                      /* value for SETVAL */
+  struct semid_ds *buf;         /* buffer for IPC_STAT, IPC_SET */
+  unsigned short int *array;    /* array for GETALL, SETALL */
+  struct seminfo *__buf;        /* buffer for IPC_INFO */
+};
+#endif  // linux check
+#include <grp.h>
+
+static const long MAX_LOGIN =  sysconf(_SC_LOGIN_NAME_MAX) <= 0 ? _POSIX_LOGIN_NAME_MAX :  sysconf(_SC_LOGIN_NAME_MAX);
+
+#define OPTIONS_MAX     32
+#define OPTIONS_LEN_MAX 1024
+
+#ifndef WAIT_ANY
+#define WAIT_ANY (pid_t) -1
+#endif // !WAIT_ANY
+
+#define COP_FATAL    LOG_ALERT
+#define COP_WARNING  LOG_ERR
+#define COP_DEBUG    LOG_DEBUG
+#define COP_NOTICE   LOG_NOTICE
+
+static const char *runtime_dir;
+static char config_file[PATH_NAME_MAX];
+
+static char cop_lockfile[PATH_NAME_MAX];
+static char manager_lockfile[PATH_NAME_MAX];
+static char server_lockfile[PATH_NAME_MAX];
+
+static int check_memory_min_swapfree_kb = 0;
+static int check_memory_min_memfree_kb = 0;
+
+static int syslog_facility = LOG_DAEMON;
+static char syslog_fac_str[PATH_NAME_MAX] = "LOG_DAEMON";
+
+static int killsig = SIGKILL;
+static int coresig = 0;
+
+static int debug_flag = false;
+static int stdout_flag = false;
+static int version_flag = false;
+static int stop_flag = false;
+
+static char* admin_user;
+static uid_t admin_uid;
+static gid_t admin_gid;
+static bool admin_user_p = false;
+static char manager_binary[PATH_NAME_MAX] = "traffic_manager";
+static char server_binary[PATH_NAME_MAX] = "traffic_server";
+static char manager_options[OPTIONS_LEN_MAX] = "";
+
+static char log_file[PATH_NAME_MAX] = "traffic.out";
+static char bin_path[PATH_NAME_MAX] = "bin";
+
+static int autoconf_port = 8083;
+static int rs_port = 8088;
+static MgmtClusterType cluster_type = NO_CLUSTER;
+static int http_backdoor_port = 8084;
+
+#if defined(linux)
+// TS-1075 : auto-port ::connect DoS on high traffic linux systems
+static int source_port = 0;
+#endif
+
+static int manager_failures = 0;
+static int server_failures = 0;
+static int server_not_found = 0;
+
+static const int sleep_time = 10;       // 10 sec
+static const int manager_timeout = 3 * 60;      //  3 min
+static const int server_timeout = 3 * 60;       //  3 min
+
+// traffic_manager flap detection
+#define MANAGER_FLAP_DETECTION 1
+#if defined(MANAGER_FLAP_DETECTION)
+#define MANAGER_MAX_FLAP_COUNT 3        // if flap this many times, give up for a while
+#define MANAGER_FLAP_INTERVAL_MSEC 60000        // if x number of flaps happen in this interval, declare flapping
+#define MANAGER_FLAP_RETRY_MSEC 60000   // if flapping, don't try to restart until after this retry duration
+static bool manager_flapping = false;   // is the manager flapping?
+static int manager_flap_count = 0;      // how many times has the manager flapped?
+static ink_hrtime manager_flap_interval_start_time = 0; // first time we attempted to start the manager in past little while)
+static ink_hrtime manager_flap_retry_start_time = 0;    // first time we attempted to start the manager in past little while)
+#endif
+
+// transient syscall error timeout
+#define TRANSIENT_ERROR_WAIT_MS 500
+
+static const int kill_timeout = 1 * 60; //  1 min
+
+static int child_pid = 0;
+static int child_status = 0;
+static int sem_id = 11452;
+
+AppVersionInfo appVersionInfo;
+
+static char const localhost[] = "127.0.0.1";
+
+static void cop_log(int priority, const char *format, ...) TS_PRINTFLIKE(2, 3);
+
+static void get_admin_user(void);
+
+struct ConfigValue
+{
+  ConfigValue(RecT _t, RecDataT _d, const std::string& _v)
+    : config_type(_t), data_type(_d), data_value(_v) {
+    }
+
+  RecT        config_type;
+  RecDataT    data_type;
+  std::string data_value;
+};
+
+typedef std::map<std::string, ConfigValue> ConfigValueTable;
+static ConfigValueTable configTable;
+
+#define cop_log_trace(...) do { if (debug_flag) cop_log(COP_DEBUG, __VA_ARGS__); } while (0)
+
+static const char *
+priority_name(int priority)
+{
+  switch (priority) {
+    case COP_DEBUG:   return "DEBUG";
+    case COP_WARNING: return "WARNING";
+    case COP_FATAL:   return "FATAL";
+    case COP_NOTICE:  return "NOTICE";
+    default:          return "unknown";
+  }
+}
+
+static void
+cop_log(int priority, const char *format, ...)
+{
+  va_list args;
+
+  va_start(args, format);
+
+  if (stdout_flag) {
+    struct timeval now;
+    double now_f;
+
+    gettimeofday(&now, NULL);
+    now_f = now.tv_sec + now.tv_usec / 1000000.0f;
+
+    fprintf(stdout, "<%.4f> [%s]: ", now_f, priority_name(priority));
+    vfprintf(stdout, format, args);
+    fflush(stdout);
+  } else {
+    char buffer[8192];
+    vsprintf(buffer, format, args);
+    syslog(priority, "%s", buffer);
+  }
+
+  va_end(args);
+}
+
+
+void
+chown_file_to_admin_user(const char *file) {
+  if (admin_user_p) {
+    if (chown(file, admin_uid, admin_gid) < 0 && errno != ENOENT) {
+      cop_log(COP_FATAL, "cop couldn't chown the file: '%s' for '%s' (%d/%d) : [%d] %s\n",
+              file, admin_user, admin_uid, admin_gid, errno, strerror(errno));
+    }
+  }
+}
+
+static void
+sig_child(int signum)
+{
+  pid_t pid = 0;
+  int status = 0;
+
+  cop_log_trace("Entering sig_child(%d)\n", signum);
+  for (;;) {
+    pid = waitpid(WAIT_ANY, &status, WNOHANG);
+
+    if (pid <= 0) {
+      break;
+    }
+    // TSqa03086 - We can not log the child status signal from
+    //   the signal handler since syslog can deadlock.  Record
+    //   the pid and the status in a global for logging
+    //   next time through the event loop.  We will occasionally
+    //   lose some information if we get two sig childs in rapid
+    //   succession
+    child_pid = pid;
+    child_status = status;
+  }
+  cop_log_trace("Leaving sig_child(%d)\n", signum);
+}
+
+static void
+sig_term(int signum)
+{
+  pid_t pid = 0;
+  int status = 0;
+
+  //killsig = SIGTERM;
+
+  cop_log_trace("Entering sig_term(%d)\n", signum);
+
+  // safely^W commit suicide.
+  cop_log_trace("Sending signal %d to entire group\n", signum);
+  killpg(0, signum);
+  
+  cop_log_trace("Waiting for children to exit.");
+
+  for (;;) {
+    pid = waitpid(WAIT_ANY, &status, WNOHANG);
+
+    if (pid <= 0) {
+      break;
+    }
+    // TSqa03086 - We can not log the child status signal from
+    //   the signal handler since syslog can deadlock.  Record
+    //   the pid and the status in a global for logging
+    //   next time through the event loop.  We will occasionally
+    //   lose some information if we get two sig childs in rapid
+    //   succession
+    child_pid = pid;
+    child_status = status;
+  }
+  cop_log_trace("Leaving sig_term(%d), exiting traffic_cop\n", signum);
+  exit(0);
+}
+
+static void
+#if defined(solaris)
+sig_fatal(int signum, siginfo_t * t, void *c)
+#else
+sig_fatal(int signum)
+#endif
+{
+  cop_log_trace("Entering sig_fatal(%d)\n", signum);
+#if defined(solaris)
+  if (t) {
+    if (t->si_code <= 0) {
+      cop_log(COP_FATAL, "cop received fatal user signal [%d] from"
+              " pid [%d] uid [%d]\n", signum, (int)(t->si_pid), t->si_uid);
+    } else {
+      cop_log(COP_FATAL, "cop received fatal kernel signal [%d], " "reason [%d]\n", signum, t->si_code);
+    }
+  } else {
+#endif
+    cop_log(COP_FATAL, "cop received fatal signal [%d]\n", signum);
+#if defined(solaris)
+  }
+#endif
+  cop_log_trace("Leaving sig_fatal(%d)\n", signum);
+  abort();
+}
+
+static void
+#if defined(solaris)
+sig_alarm_warn(int signum, siginfo_t * t, void *c)
+#else
+sig_alarm_warn(int signum)
+#endif
+{
+  cop_log_trace("Entering sig_alarm_warn(%d)\n", signum);
+  cop_log(COP_WARNING, "unable to kill traffic_server for the last" " %d seconds\n", kill_timeout);
+
+  // Set us up for another alarm
+  alarm(kill_timeout);
+  cop_log_trace("Leaving sig_alarm_warn(%d)\n", signum);
+}
+
+static void
+sig_ignore(int signum)
+{
+  cop_log_trace("Entering sig_ignore(%d)\n", signum);
+  // No code here yet...
+  cop_log_trace("Leaving sig_ignore(%d)\n", signum);
+}
+
+static void
+set_alarm_death()
+{
+  struct sigaction action;
+
+  cop_log_trace("Entering set_alarm_death()\n");
+#if defined(solaris)
+  action.sa_handler = NULL;
+  action.sa_sigaction = sig_fatal;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = SA_SIGINFO;
+#else
+  action.sa_handler = sig_fatal;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = 0;
+#endif
+
+  sigaction(SIGALRM, &action, NULL);
+  cop_log_trace("Leaving set_alarm_death()\n");
+}
+
+static void
+set_alarm_warn()
+{
+  struct sigaction action;
+
+  cop_log_trace("Entering set_alarm_warn()\n");
+#if defined(solaris)
+  action.sa_handler = NULL;
+  action.sa_sigaction = sig_alarm_warn;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = SA_SIGINFO;
+#else
+  action.sa_handler = sig_alarm_warn;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = 0;
+#endif
+
+  sigaction(SIGALRM, &action, NULL);
+  cop_log_trace("Leaving set_alarm_warn()\n");
+
+}
+
+static void
+process_syslog_config(void)
+{
+  int new_fac;
+
+  cop_log_trace("Entering process_syslog_config()\n");
+  new_fac = facility_string_to_int(syslog_fac_str);
+
+  if (new_fac >= 0 && new_fac != syslog_facility) {
+    closelog();
+    openlog("traffic_cop", LOG_PID | LOG_NDELAY | LOG_NOWAIT, new_fac);
+    syslog_facility = new_fac;
+  }
+  cop_log_trace("Leaving process_syslog_config()\n");
+}
+
+// Paranoia: wrap the process termination call within alarms
+//           so that when the killing call doesn't return we
+//           will still wake up
+static void
+safe_kill(const char *lockfile_name, const char *pname, bool group)
+{
+  Lockfile lockfile(lockfile_name);
+  chown_file_to_admin_user(lockfile_name);
+
+  cop_log_trace("Entering safe_kill(%s, %s, %d)\n", lockfile_name, pname, group);
+  set_alarm_warn();
+  alarm(kill_timeout);
+
+  if (group == true) {
+    lockfile.KillGroup(killsig, coresig, pname);
+  } else {
+    lockfile.Kill(killsig, coresig, pname);
+  }
+  chown_file_to_admin_user(lockfile_name);
+
+  alarm(0);
+  set_alarm_death();
+  cop_log_trace("Leaving safe_kill(%s, %s, %d)\n", lockfile_name, pname, group);
+}
+
+
+// ink_hrtime milliseconds()
+//
+// Returns the result of gettimeofday converted to
+// one 64bit int
+//
+static ink_hrtime
+milliseconds(void)
+{
+  struct timeval curTime;
+
+  cop_log_trace("Entering milliseconds()\n");
+  ink_gethrtimeofday(&curTime, NULL);
+  // Make liberal use of casting to ink_hrtime to ensure the
+  //  compiler does not truncate our result
+  cop_log_trace("Leaving milliseconds()\n");
+  return ((ink_hrtime) curTime.tv_sec * 1000) + ((ink_hrtime) curTime.tv_usec / 1000);
+}
+
+static void
+millisleep(int ms)
+{
+  struct timespec ts;
+
+  cop_log_trace("Entering millisleep(%d)\n", ms);
+  ts.tv_sec = ms / 1000;
+  ts.tv_nsec = (ms - ts.tv_sec * 1000) * 1000 * 1000;
+  nanosleep(&ts, NULL);
+  cop_log_trace("Leaving millisleep(%d)\n", ms);
+}
+
+static bool
+transient_error(int error, int wait_ms)
+{
+  cop_log_trace("Entering transient_error(%d, %d)\n", error, wait_ms);
+
+  // switch cases originally from UnixNex::accept_error_seriousness()
+  switch (error) {
+  case EAGAIN:
+  case EINTR:
+    break;
+
+  case ENFILE:
+  case EMFILE:
+  case ENOMEM:
+#ifdef ENOBUFS
+  case ENOBUFS:
+#endif
+#if defined(ENOSR) && !defined(freebsd) && !defined(darwin)
+  case ENOSR:
+#endif
+    if (wait_ms)
+      millisleep(wait_ms);
+    break;
+
+  default:
+    cop_log_trace("Leaving transient_error(%d, %d) --> false\n", error, wait_ms);
+    return false;
+  }
+  cop_log_trace("Leaving transient_error(%d, %d) --> true\n", error, wait_ms);
+  return true;
+}
+
+static void
+config_register_variable(RecT rec_type, RecDataT data_type, const char * name, const char * value, bool /* inc_version */)
+{
+  configTable.insert(std::make_pair(std::string(name), ConfigValue(rec_type, data_type, value)));
+}
+
+static void
+config_read_string(const char *name, char *val, size_t val_len, bool miss_ok = false)
+{
+  ConfigValueTable::const_iterator config;
+
+  config = configTable.find(name);
+  if (config == configTable.end()) {
+    if (miss_ok)
+      return;
+    else
+      goto ConfigStrFatalError;
+  }
+
+  if (config->second.data_type != RECD_STRING) {
+    goto ConfigStrFatalError;
+  }
+
+  ink_strlcpy(val, RecConfigOverrideFromEnvironment(name, config->second.data_value.c_str()), val_len);
+  return;
+
+ConfigStrFatalError:
+  cop_log(COP_FATAL, "could not find string variable %s in records.config\n", name);
+  exit(1);
+}
+
+static void
+config_read_int(const char *name, int *val, bool miss_ok = false)
+{
+  ConfigValueTable::const_iterator config;
+
+  config = configTable.find(name);
+  if (config == configTable.end()) {
+    if (miss_ok)
+      return;
+    else
+      goto ConfigIntFatalError;
+  }
+
+  if (config->second.data_type != RECD_INT) {
+    goto ConfigIntFatalError;
+  }
+
+  *val = atoi(RecConfigOverrideFromEnvironment(name, config->second.data_value.c_str()));
+  return;
+
+ConfigIntFatalError:
+  cop_log(COP_FATAL, "could not find integer variable %s in records.config\n", name);
+  exit(1);
+}
+
+static const char *
+config_read_runtime_dir()
+{
+  char state_dir[PATH_NAME_MAX + 1];
+
+  state_dir[0] = '\0';
+  config_read_string("proxy.config.local_state_dir", state_dir, sizeof(state_dir), true);
+  if (strlen(state_dir) > 0) {
+    return Layout::get()->relative(state_dir);
+  } else {
+    return ats_strdup(Layout::get()->runtimedir);
+  }
+}
+
+static void
+config_reload_records()
+{
+  struct stat stat_buf;
+  static time_t last_mod = 0;
+  char log_dir[PATH_NAME_MAX];
+  char log_filename[PATH_NAME_MAX];
+  int tmp_int;
+
+  cop_log_trace("Entering %s()\n", __func__);
+  // coverity[fs_check_call]
+  if (stat(config_file, &stat_buf) == -1) {
+    cop_log(COP_FATAL, "could not stat \"%s\"\n", config_file);
+    exit(1);
+  }
+
+  if (stat_buf.st_mtime <= last_mod) {  // no change, no need to re-read
+    return;
+  } else {
+    last_mod = stat_buf.st_mtime;
+  }
+
+  configTable.clear();
+
+  if (RecConfigFileParse(config_file, config_register_variable, false) != REC_ERR_OKAY) {
+    cop_log(COP_FATAL, "could not parse \"%s\"\n", config_file);
+    exit(1);
+  }
+
+  config_read_string("proxy.config.manager_binary", manager_binary, sizeof(manager_binary), true);
+  config_read_string("proxy.config.proxy_binary", server_binary, sizeof(server_binary), true);
+  get_admin_user();
+
+  config_read_string("proxy.config.bin_path", bin_path, sizeof(bin_path), true);
+  Layout::get()->relative(bin_path, sizeof(bin_path), bin_path);
+  if (access(bin_path, R_OK) == -1) {
+    ink_strlcpy(bin_path, Layout::get()->bindir, sizeof(bin_path));
+    if (access(bin_path, R_OK) == -1) {
+      cop_log(COP_FATAL, "could not access() \"%s\"\n", bin_path);
+      cop_log(COP_FATAL, "please set 'proxy.config.bin_path' \n");
+      exit(1);
+    }
+  }
+  config_read_string("proxy.config.log.logfile_dir", log_dir, sizeof(log_dir));
+  Layout::get()->relative(log_dir, sizeof(log_dir), log_dir);
+  if (access(log_dir, W_OK) == -1) {
+    ink_strlcpy(log_dir, Layout::get()->logdir, sizeof(log_dir));
+    if (access(log_dir, W_OK) == -1) {
+      cop_log(COP_FATAL, "could not access() \"%s\"\n", log_dir);
+      cop_log(COP_FATAL, "please set 'proxy.config.log.logfile_dir' \n");
+      exit(1);
+    }
+  }
+  config_read_string("proxy.config.output.logfile", log_filename, sizeof(log_filename));
+  Layout::relative_to(log_file, sizeof(log_file), log_dir, log_filename);
+  config_read_int("proxy.config.process_manager.mgmt_port", &http_backdoor_port, true);
+  config_read_int("proxy.config.admin.autoconf_port", &autoconf_port, true);
+  config_read_int("proxy.config.cluster.rsport", &rs_port, true);
+  config_read_int("proxy.config.lm.sem_id", &sem_id, true);
+
+#if defined(linux)
+  // TS-1075 : auto-port ::connect DoS on high traffic linux systems
+  config_read_int("proxy.config.cop.source_port", &source_port, true);
+#endif
+
+  config_read_int("proxy.local.cluster.type", &tmp_int);
+  cluster_type = static_cast<MgmtClusterType>(tmp_int);
+
+  if (stdout_flag) {
+    config_read_string("proxy.config.syslog_facility", syslog_fac_str, sizeof(syslog_fac_str), true);
+    process_syslog_config();
+  }
+
+  config_read_int("proxy.config.cop.core_signal", &coresig, true);
+
+  config_read_int("proxy.config.cop.linux_min_swapfree_kb", &check_memory_min_swapfree_kb, true);
+  config_read_int("proxy.config.cop.linux_min_memfree_kb", &check_memory_min_memfree_kb, true);
+
+  cop_log_trace("Leaving %s()\n", __func__);
+}
+
+static void
+get_admin_user()
+{
+  struct passwd *pwd = NULL;
+
+  if (!admin_user)
+    admin_user = (char *)ats_malloc(MAX_LOGIN);
+
+  config_read_string("proxy.config.admin.user_id", admin_user, MAX_LOGIN);
+
+  if (*admin_user) {
+    char *end = admin_user + strlen(admin_user) - 1;
+
+    // Trim trailing spaces.
+    while (end >= admin_user && isspace(*end))
+      end--;
+    *(end + 1) = '\0';
+
+    if (*admin_user == '#') {
+      int uid = atoi(admin_user + 1);
+      if (uid == -1) {
+        // XXX: Can this call hapen after setuid?
+        uid = (int)geteuid();
+      }
+      pwd = getpwuid((uid_t)uid);
+    } else {
+      pwd = getpwnam(admin_user);
+    }
+
+    if (pwd) {
+      admin_uid = pwd->pw_uid;
+      admin_gid = pwd->pw_gid;
+      admin_user_p = true;
+    } else {
+      cop_log(COP_FATAL, "can't get passwd entry for the admin user '%s' - [%d] %s\n", admin_user, errno, strerror(errno));
+      exit(1);
+    }
+  }
+}
+
+static void
+spawn_manager()
+{
+  char prog[PATH_NAME_MAX];
+  char *options[OPTIONS_MAX];
+  char *last;
+  char *tok;
+  int log_fd;
+  int err;
+  int key;
+
+  cop_log_trace("Entering spawn_manager()\n");
+  // Clean up shared memory segments.
+  if (sem_id > 0) {
+    key = sem_id;
+  } else {
+    key = 11452;
+  }
+  for (;; key++) {
+    err = semget(key, 1, 0666);
+    if (err < 0) {
+      break;
+    }
+#if defined(solaris) || defined(kfreebsd) || defined(unknown)
+    err = semctl(err, 1, IPC_RMID);
+#else
+    union semun dummy_semun;
+    memset(&dummy_semun, 0, sizeof(dummy_semun));
+    err = semctl(err, 1, IPC_RMID, dummy_semun);
+#endif
+    if (err < 0) {
+      break;
+    }
+  }
+
+  Layout::relative_to(prog, sizeof(prog), bin_path, manager_binary);
+  if (access(prog, R_OK | X_OK) == -1) {
+    cop_log(COP_FATAL, "unable to access() manager binary \"%s\" [%d '%s']\n", prog, errno, strerror(errno));
+    exit(1);
+  }
+
+  cop_log_trace("spawn_manager: Launching %s with options '%s'\n", prog, manager_options);
+  int i;
+  for (i = 0; i < OPTIONS_MAX; i++) {
+    options[i] = NULL;
+  }
+  options[0] = prog;
+  i = 1;
+  tok = strtok_r(manager_options, " ", &last);
+  options[i++] = tok;
+  if (tok != NULL) {
+    while (i < OPTIONS_MAX && (tok = strtok_r(NULL, " ", &last))) {
+      options[i++] = tok;
+    }
+  }
+
+  // Move any traffic.out that we can not write to, out
+  //  of the way (TSqa2232)
+  // coverity[fs_check_call]
+  if (access(log_file, W_OK) < 0 && errno == EACCES) {
+    char old_log_file[PATH_NAME_MAX];
+    snprintf(old_log_file, sizeof(old_log_file), "%s.old", log_file);
+    // coverity[toctou]
+    rename(log_file, old_log_file);
+    cop_log(COP_WARNING, "rename %s to %s as it is not accessible.\n", log_file, old_log_file);
+  }
+  // coverity[toctou]
+  if ((log_fd = open(log_file, O_WRONLY | O_APPEND | O_CREAT, 0640)) < 0) {
+    cop_log(COP_WARNING, "unable to open log file \"%s\" [%d '%s']\n", log_file, errno, strerror(errno));
+  }
+
+  err = fork();
+  if (err == 0) {
+    if (log_fd >= 0) {
+      dup2(log_fd, STDOUT_FILENO);
+      dup2(log_fd, STDERR_FILENO);
+      close(log_fd);
+    }
+
+    err = execv(prog, options);
+    cop_log_trace("Somehow execv(%s, options, NULL) failed (%d)!\n", prog, err);
+    exit(1);
+  } else if (err == -1) {
+    cop_log(COP_FATAL, "unable to fork [%d '%s']\n", errno, strerror(errno));
+    exit(1);
+  }
+
+  if (log_fd >= 0) {
+    close(log_fd);
+  }
+
+  manager_failures = 0;
+  cop_log_trace("Leaving spawn_manager()\n");
+}
+
+
+static int
+poll_read_or_write(int fd, int timeout, int inorout)
+{
+  struct pollfd info;
+  int err;
+
+  info.fd = fd;
+  info.events = inorout;
+  info.revents = 0;
+
+  do {
+    err = poll(&info, 1, timeout);
+  } while ((err < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+  if ((err > 0) && (info.revents & inorout)) {
+    return 1;
+  }
+
+  return err;
+}
+
+inline static int
+poll_read(int fd, int timeout)
+{
+  return poll_read_or_write(fd, timeout, POLLIN);
+}
+
+inline static int
+poll_write(int fd, int timeout)
+{
+  return poll_read_or_write(fd, timeout, POLLOUT);
+}
+
+static int
+open_socket(int port, const char *ip = NULL, char const *ip_to_bind = NULL)
+{
+
+  int sock = 0;
+  struct addrinfo hints;
+  struct addrinfo *result = NULL;
+  struct addrinfo *result_to_bind = NULL;
+  char port_str[8] = {'\0'};
+  int err = 0;
+
+  cop_log_trace("Entering open_socket(%d, %s, %s)\n", port, ip, ip_to_bind);
+  if (!ip) {
+    ip = localhost;
+  }
+
+#if defined(linux)
+  // TS-1075 : auto-port ::connect DoS on high traffic linux systems
+  // unbound connections are "unsafe" in high connection count environments
+  if (!ip_to_bind) {
+    ip = localhost;
+  }
+#endif
+
+  snprintf(port_str, sizeof(port_str), "%d", port);
+  memset(&hints, 0, sizeof(hints));
+  hints.ai_family = AF_UNSPEC;
+  hints.ai_socktype = SOCK_STREAM;
+
+  err = getaddrinfo(ip, port_str, &hints, &result);
+  if (err != 0) {
+    cop_log (COP_WARNING, "(test) unable to get address info [%d %s] at ip %s, port %s\n", err, gai_strerror(err), ip, port_str);
+    goto getaddrinfo_error;
+  }
+
+  // Create a socket
+  do {
+    sock = socket(result->ai_family, result->ai_socktype, 0);
+  } while ((sock < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+  if (sock < 0) {
+    cop_log(COP_WARNING, "(test) unable to create socket [%d '%s']\n", errno, strerror(errno));
+    goto error;
+  }
+
+  if (ip_to_bind) {
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = result->ai_family;
+    hints.ai_socktype = result->ai_socktype;
+
+    err = getaddrinfo(ip_to_bind, NULL, &hints, &result_to_bind);
+    if (err != 0) {
+      cop_log (COP_WARNING, "(test) unable to get address info [%d %s] at ip %s\n", err, gai_strerror(err), ip_to_bind);
+      freeaddrinfo(result_to_bind);
+      goto error;
+    }
+
+#if defined(linux)
+    // TS-1075 : auto-port ::connect DoS on high traffic linux systems
+    // Bash the port on ::bind so that we always use the same port
+    if (0 != source_port) {
+      if (result_to_bind->ai_addr->sa_family == AF_INET) {
+        ((sockaddr_in *)result_to_bind->ai_addr)->sin_port = htons(source_port);
+      } else {
+        ((sockaddr_in6 *)result_to_bind->ai_addr)->sin6_port = htons(source_port);
+      }
+
+      // also set REUSEADDR so that previous cop connections in the TIME_WAIT state
+      // do not interfere
+      if (safe_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, SOCKOPT_ON, sizeof(int)) < 0) {
+        cop_log (COP_WARNING, "(test) unable to set REUSEADDR socket option [%d '%s']\n", errno, strerror (errno));
+      }
+    }
+#endif
+
+    if (safe_bind(sock, result_to_bind->ai_addr, result_to_bind->ai_addrlen) < 0) {
+      cop_log (COP_WARNING, "(test) unable to bind socket [%d '%s']\n", errno, strerror (errno));
+    }
+
+    freeaddrinfo(result_to_bind);
+  }
+
+  // Put the socket in non-blocking mode...just to be extra careful
+  // that we never block.
+  do {
+    err = fcntl(sock, F_SETFL, O_NONBLOCK);
+  } while ((err < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+  if (err < 0) {
+    cop_log(COP_WARNING, "(test) unable to put socket in non-blocking mode [%d '%s']\n", errno, strerror(errno));
+    goto error;
+  }
+  // Connect to the specified port on the machine we're running on.
+  do {
+    err = connect(sock, result->ai_addr, result->ai_addrlen);
+  } while ((err < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+  if ((err < 0) && (errno != EINPROGRESS)) {
+    cop_log(COP_WARNING, "(test) unable to connect to server [%d '%s'] at port %d\n", errno, strerror(errno), port);
+    goto error;
+  }
+  cop_log_trace("Leaving open_socket(%d, %s, %s) --> %d\n", port, ip, ip_to_bind, sock);
+  freeaddrinfo(result);
+  return sock;
+
+error:
+  if (sock >= 0) {
+    close_socket(sock);
+  }
+  cop_log_trace("Leaving open_socket(%d, %s, %s) --> %d\n", port, ip, ip_to_bind, -1);
+getaddrinfo_error:
+  freeaddrinfo(result);
+  return -1;
+}
+
+static int
+test_port(int port, const char *request, char *buffer, int bufsize,
+          int64_t test_timeout, char const *ip = NULL, char const *ip_to_bind = NULL)
+{
+  int64_t start_time, timeout;
+  int sock;
+  size_t length = strlen(request);
+  int64_t err, idx;
+
+  start_time = milliseconds();
+
+  sock = open_socket(port, ip, ip_to_bind);
+  if (sock < 0) {
+    goto error;
+  }
+
+  timeout = milliseconds() - start_time;
+  if (timeout >= test_timeout) {
+    cop_log(COP_WARNING, "(test) timeout occurred [%" PRId64 " ms]\n", timeout);
+    goto error;
+  }
+  timeout = test_timeout - timeout;
+
+  err = poll_write(sock, timeout);
+  if (err < 0) {
+    cop_log(COP_WARNING, "(test) poll write failed [%d '%s']\n", errno, strerror(errno));
+    goto error;
+  } else if (err == 0) {
+    cop_log(COP_WARNING, "(test) write timeout [%" PRId64 " ms]\n", timeout);
+    goto error;
+  }
+  // Write the request to the server.
+  while (length > 0) {
+    do {
+      err = write(sock, request, length);
+    } while ((err < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+    if (err < 0) {
+      cop_log(COP_WARNING, "(test) write failed [%d '%s']\n", errno, strerror(errno));
+      goto error;
+    }
+
+    request += err;
+    length -= err;
+  }
+
+  idx = 0;
+  for (;;) {
+    if (idx >= bufsize) {
+      cop_log(COP_WARNING, "(test) response is too large [%" PRId64 "]\n", idx);
+      goto error;
+    }
+
+    timeout = milliseconds() - start_time;
+    if (timeout >= test_timeout) {
+      cop_log(COP_WARNING, "(test) timeout occurred [%" PRId64 " ms]\n", timeout);
+      goto error;
+    }
+    timeout = test_timeout - timeout;
+
+    err = poll_read(sock, timeout);
+    if (err < 0) {
+      cop_log(COP_WARNING, "(test) poll read failed [%d '%s']\n", errno, strerror(errno));
+      goto error;
+    } else if (err == 0) {
+      cop_log(COP_WARNING, "(test) read timeout [%" PRId64 " ]\n", timeout);
+      goto error;
+    }
+
+    do {
+      err = read(sock, &buffer[idx], bufsize - idx);
+    } while ((err < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+    if (err < 0) {
+      cop_log(COP_WARNING, "(test) read failed [%d '%s']\n", errno, strerror(errno));
+      goto error;
+    } else if (err == 0) {
+      buffer[idx] = '\0';
+      close(sock);
+      return 0;
+    } else {
+      idx += err;
+    }
+  }
+
+error:
+  if (sock >= 0) {
+    close_socket(sock);
+  }
+  return -1;
+}
+
+static int
+read_manager_string(const char *variable, char *value, size_t val_len)
+{
+  char buffer[4096];
+  char request[1024];
+  char *p, *e;
+  int err;
+
+  snprintf(request, sizeof(request), "read %s\n", variable);
+
+  err = test_port(rs_port, request, buffer, 4095, manager_timeout * 1000);
+  if (err < 0) {
+    return err;
+  }
+
+  p = strstr(buffer, variable);
+  if (!p) {
+    cop_log(COP_WARNING, "(manager test) could not find record name in response\n");
+    return -1;
+  }
+  p += strlen(variable);
+
+  p = strstr(p, "Val:");
+  if (!p) {
+    cop_log(COP_WARNING, "(manager test) could not find record value in response\n");
+    return -1;
+  }
+  p += sizeof("Val:") - 1;
+
+  while (*p && (*p != '\'')) {
+    p += 1;
+  }
+
+  if (*p == '\0') {
+    cop_log(COP_WARNING, "(manager test) could not find properly delimited value in response\n");
+    return -1;
+  }
+  p += 1;
+
+  e = p;
+  while (*e && (*e != '\'')) {
+    e += 1;
+  }
+
+  if (*e != '\'') {
+    cop_log(COP_WARNING, "(manager test) could not find properly delimited value in response\n");
+    return -1;
+  }
+
+  ink_strlcpy(value, p, MIN((size_t)(e - p + 1), val_len));
+
+  return 0;
+}
+
+static int
+read_manager_int(const char *variable, int *value)
+{
+  char buffer[4096];
+  char request[1024];
+  char *p;
+  int err;
+
+  snprintf(request, sizeof(request), "read %s\n", variable);
+
+  err = test_port(rs_port, request, buffer, 4095, manager_timeout * 1000);
+  if (err < 0) {
+    return err;
+  }
+
+  p = strstr(buffer, variable);
+  if (!p) {
+    cop_log(COP_WARNING, "(manager test) could not find record name in response\n");
+    return -1;
+  }
+  p += strlen(variable);
+
+  p = strstr(p, "Val:");
+  if (!p) {
+    cop_log(COP_WARNING, "(manager test) could not find record value in response\n");
+    return -1;
+  }
+  p += sizeof("Val:") - 1;
+
+  while (*p && (*p != '\'')) {
+    p += 1;
+  }
+
+  if (*p == '\0') {
+    cop_log(COP_WARNING, "(manager test) could not find properly delimited value in response\n");
+    return -1;
+  }
+  p += 1;
+
+  *value = 0;
+  while (isdigit(*p)) {
+    *value = *value * 10 + (*p - '0');
+    p += 1;
+  }
+
+  if (*p != '\'') {
+    cop_log(COP_WARNING, "(manager test) could not find properly delimited value in response\n");
+    return -1;
+  }
+  return 0;
+}
+
+static int
+read_mgmt_cli_int(const char *variable, int *value)
+{
+  TSInt val;
+
+  if (TSRecordGetInt(variable, &val) != TS_ERR_OKAY) {
+    cop_log(COP_WARNING, "(cli test) could not communicate with mgmt cli\n");
+    return -1;
+  }
+  *value = val;
+  return 0;
+}
+
+
+static int
+test_rs_port()
+{
+  char buffer[4096];
+  int err;
+
+  err = read_manager_string("proxy.config.manager_binary", buffer, sizeof(buffer));
+  if (err < 0) {
+    return err;
+  }
+
+  if (strcmp(buffer, manager_binary) != 0) {
+    cop_log(COP_WARNING, "(manager test) bad response value\n");
+    return -1;
+  }
+
+  return 0;
+}
+
+
+static int
+test_mgmt_cli_port()
+{
+  TSString val = NULL;
+  int ret = 0;
+
+  if (TSRecordGetString("proxy.config.manager_binary", &val) !=  TS_ERR_OKAY) {
+    cop_log(COP_WARNING, "(cli test) unable to retrieve manager_binary\n");
+    ret = -1;
+  } else {
+    if (strcmp(val, manager_binary) != 0) {
+      cop_log(COP_WARNING, "(cli test) bad response value, got %s, expected %s\n", val, manager_binary);
+      ret = -1;
+    }
+  }
+
+  if (val)
+    TSfree(val);
+  return ret;
+}
+
+
+static int
+test_http_port(int port, char *request, int timeout, char const *ip = NULL, char const *ip_to_bind = NULL)
+{
+  char buffer[4096];
+  char *p;
+  int err;
+
+  err = test_port(port, request, buffer, 4095, timeout, ip, ip_to_bind);
+  if (err < 0) {
+    return err;
+  }
+
+  p = buffer;
+
+  if (strncmp(p, "HTTP/", 5) != 0) {
+    cop_log(COP_WARNING, "(http test) received malformed response\n");
+    return -1;
+  }
+
+  p += 5;
+  while (*p && !isspace(*p)) {
+    p += 1;
+  }
+
+  while (*p && isspace(*p)) {
+    p += 1;
+  }
+
+  if (strncmp(p, "200", 3) != 0) {
+    char pstatus[4] = { 0 };
+    ink_strlcpy(pstatus, p, sizeof(pstatus));
+    cop_log(COP_WARNING, "(http test) received non-200 status(%s)\n", pstatus);
+    return -1;
+  }
+
+  p = strstr(p, "\r\n\r\n");
+  if (!p) {
+    cop_log(COP_WARNING, "(http test) could not find end of header\n");
+    return -1;
+  }
+
+  p += 4;
+  while (*p) {
+    if (strncmp(p, "abcdefghijklmnopqrstuvwxyz", 26) != 0) {
+      cop_log(COP_WARNING, "(http test) corrupted response data\n");
+      return -1;
+    }
+
+    p += 26;
+    while (*p && (*p != '\n')) {
+      p += 1;
+    }
+    p += 1;
+  }
+
+  return 0;
+}
+
+static int
+test_server_http_port()
+{
+  char request[1024] = {'\0'};
+
+  // Generate a request for a the 'synthetic.txt' document the manager
+  // servers up on the autoconf port.
+  snprintf(request, sizeof(request), "GET http://127.0.0.1:%d/synthetic.txt HTTP/1.0\r\n\r\n", autoconf_port);
+
+  return test_http_port(http_backdoor_port, request, server_timeout * 1000, localhost, localhost);
+}
+
+static int
+heartbeat_manager()
+{
+  int err;
+
+  cop_log_trace("Entering heartbeat_manager()\n");
+  // the CLI, and the rsport if cluster is enabled.
+  err = test_mgmt_cli_port();
+  if ((0 == err) && (cluster_type != NO_CLUSTER))
+    err = test_rs_port();
+
+  if (err < 0) {
+    // See heartbeat_server()'s comments for how we determine a server/manager failure.
+    manager_failures += 1;
+    cop_log(COP_WARNING, "manager heartbeat [variable] failed [%d]\n", manager_failures);
+
+    if (manager_failures > 1) {
+      manager_failures = 0;
+      cop_log(COP_WARNING, "killing manager\n");
+      safe_kill(manager_lockfile, manager_binary, true);
+    }
+    cop_log_trace("Leaving heartbeat_manager() --> %d\n", err);
+    return err;
+  }
+
+  cop_log_trace("Leaving heartbeat_manager() --> %d\n", err);
+  return err;
+}
+
+static int
+heartbeat_server()
+{
+  int err;
+
+  cop_log_trace("Entering heartbeat_server()\n");
+  err = test_server_http_port();
+
+  if (err < 0) {
+    // If the test failed, increment the count of the number of
+    // failures. We don't kill the server the first time the test
+    // fails because we might just have gotten caught in a race
+    // where we decided to do the test because we thought the
+    // server was up even though somebody was in the process of
+    // bringing it down. The "server_up" function will reset
+    // 'server_failures' if it determines the server is down.
+
+    server_failures += 1;
+    cop_log(COP_WARNING, "server heartbeat failed [%d]\n", server_failures);
+
+    // If this is the second time that the server test has failed
+    // we kill the server.
+    if (server_failures > 1) {
+      server_failures = 0;
+      cop_log(COP_WARNING, "killing server\n");
+
+      // TSqa02622: Change the ALRM signal handler while
+      //   trying to kill the process since if a core
+      //   is being written, it could take a long time
+      //   Set a new alarm so that we can print warnings
+      //   if it is taking too long to kill the server
+      //
+      safe_kill(server_lockfile, server_binary, false);
+    }
+  } else {
+    if (server_failures)
+      cop_log(COP_WARNING, "server heartbeat succeeded\n");
+    server_failures = 0;
+  }
+
+  cop_log_trace("Leaving heartbeat_server() --> %d\n", err);
+  return err;
+}
+
+static int
+server_up()
+{
+  static int old_val = 0;
+  int val = -1;
+  int err;
+
+  cop_log_trace("Entering server_up()\n");
+  if (cluster_type != NO_CLUSTER) {
+    err = read_manager_int("proxy.node.proxy_running", &val);
+  } else {
+    err = read_mgmt_cli_int("proxy.node.proxy_running", &val);
+  }
+
+  if (err < 0) {
+    cop_log(COP_WARNING, "could not contact manager, assuming server is down\n");
+    cop_log_trace("Leaving server_up() --> 0\n");
+    return 0;
+  }
+
+  if (val != old_val) {
+    server_failures = 0;
+    server_not_found = 0;
+    old_val = val;
+  }
+
+  if (val == 1) {
+    cop_log_trace("Leaving server_up() --> 1\n");
+    return 1;
+  } else {
+    cop_log_trace("Leaving server_up() --> 0\n");
+    return 0;
+  }
+}
+
+
+//         |  state  |  status  |  action
+// --------|---------|----------|---------------
+// manager |   up    |    ok    |  nothing
+// server  |   up    |    ok    |
+// --------|---------|----------|---------------
+// manager |   up    |    bad   |  kill manager
+// server  |   up    |    ?     |
+// --------|---------|----------|---------------
+// manager |   up    |    ok    |  kill manager
+// server  |   down  |    ?     |
+// --------|---------|----------|---------------
+// manager |   up    |    ok    |  kill server
+// server  |   up    |    bad   |
+
+
+static void
+check_programs()
+{
+  int err;
+  pid_t holding_pid;
+
+  cop_log_trace("Entering check_programs()\n");
+
+  // Try to get the manager lock file. If we succeed in doing this,
+  // it means there is no manager running.
+  Lockfile manager_lf(manager_lockfile);
+  err = manager_lf.Open(&holding_pid);
+  chown_file_to_admin_user(manager_lockfile);
+
+  if (err > 0) {
+    // 'lockfile_open' returns the file descriptor of the opened
+    // lockfile.  We need to close this before spawning the
+    // manager so that the manager can grab the lock.
+    manager_lf.Close();
+
+#if !defined(MANAGER_FLAP_DETECTION)
+    // Make sure we don't have a stray traffic server running.
+    cop_log(COP_WARNING, "traffic_manager not running, making sure traffic_server is dead\n");
+    safe_kill(server_lockfile, server_binary, false);
+    // Spawn the manager.
+    cop_log(COP_WARNING, "spawning traffic_manager\n");
+    spawn_manager();
+#else
+    // Make sure we don't have a stray traffic server running.
+    if (!manager_flapping) {
+      cop_log(COP_WARNING, "traffic_manager not running, making sure traffic_server is dead\n");
+      safe_kill(server_lockfile, server_binary, false);
+    }
+    // Spawn the manager (check for flapping manager too)
+    ink_hrtime now = milliseconds();
+    if (!manager_flapping) {
+      if ((manager_flap_interval_start_time == 0) ||
+          (now - manager_flap_interval_start_time > MANAGER_FLAP_INTERVAL_MSEC)
+        ) {
+        // either:
+        // . it's our first time through
+        // . we were flapping a while ago, but we would
+        //   like to retry now
+        // . it's been a while since we last tried to start
+        //   traffic_manager
+        manager_flap_count = 0;
+      }
+      if (manager_flap_count >= MANAGER_MAX_FLAP_COUNT) {
+        // we've flapped too many times, hold off for a while
+        cop_log(COP_WARNING, "unable to start traffic_manager, retrying in %d second(s)\n",
+                MANAGER_FLAP_RETRY_MSEC / 1000);
+        manager_flapping = true;
+        manager_flap_retry_start_time = now;
+      } else {
+        // try to spawn traffic_manager
+        cop_log(COP_WARNING, "spawning traffic_manager\n");
+        spawn_manager();
+        // track spawn attempt
+        if (manager_flap_count == 0) {
+          manager_flap_interval_start_time = now;
+        }
+        manager_flap_count++;
+      }
+    } else {
+      // we were flapping, take some time off and don't call
+      // spawn_manager
+      if (now - manager_flap_retry_start_time > MANAGER_FLAP_RETRY_MSEC) {
+        manager_flapping = false;
+        manager_flap_interval_start_time = 0;
+      }
+    }
+#endif
+  } else {
+    // If there is a manager running we want to heartbeat it to
+    // make sure it hasn't wedged. If the manager test succeeds we
+    // check to see if the server is up. (That is, it hasn't been
+    // brought down via the UI).  If the manager thinks the server
+    // is up, we make sure there is actually a server process
+    // running. If there is we test it.
+
+    alarm(2 * manager_timeout);
+    err = heartbeat_manager();
+    alarm(0);
+
+    if (err < 0) {
+      return;
+    }
+
+    if (server_up() <= 0) {
+      return;
+    }
+
+    Lockfile server_lf(server_lockfile);
+    err = server_lf.Open(&holding_pid);
+
+    if (err > 0) {
+      server_lf.Close();
+
+      server_not_found += 1;
+      cop_log(COP_WARNING, "cannot find traffic_server [%d]\n", server_not_found);
+
+      if (server_not_found > 1) {
+        server_not_found = 0;
+        cop_log(COP_WARNING, "killing manager\n");
+        safe_kill(manager_lockfile, manager_binary, true);
+      }
+    } else {
+      alarm(2 * server_timeout);
+      heartbeat_server();
+      alarm(0);
+    }
+  }
+  cop_log_trace("Leaving check_programs()\n");
+}
+
+static void
+check_memory()
+{
+  // TODO: We need to take care of other systems, ie bsd, solaris.
+  //    And we should try to summarize whether the swapping is really
+  //    putting the server under memory pressure. Or should we check
+  //    the process memory usage of the server & manager?
+  cop_log_trace("Entering check_memory()\n");
+#if defined(linux)
+  if (check_memory_min_swapfree_kb > 0 || check_memory_min_memfree_kb > 0) {
+    FILE *fp;
+    char buf[LINE_MAX];
+    long long memfree, swapfree, swapsize;
+    memfree = swapfree = swapsize = 0;
+    if ((fp = fopen("/proc/meminfo", "r"))) {
+      while (fgets(buf, sizeof buf, fp)) {
+        if (strncmp(buf, "MemFree:", sizeof "MemFree:" - 1) == 0)
+          memfree = strtoll(buf + sizeof "MemFree:" - 1, 0, 10);
+        else if (strncmp(buf, "SwapFree:", sizeof "SwapFree:" - 1) == 0)
+          swapfree = strtoll(buf + sizeof "SwapFree:" - 1, 0, 10);
+        else if (strncmp(buf, "SwapTotal:", sizeof "SwapTotal:" - 1) == 0)
+          swapsize = strtoll(buf + sizeof "SwapTotal:" - 1, 0, 10);
+      }
+      fclose(fp);
+      // simple heuristic for linux
+      //    swapsize swapfree memfree
+      // 1:    >0      low     high    (bad)
+      // 2:    >0      high    low     (okay)
+      // 3:    >0      low     low     (bad; covered by 1)
+      // 4:     0       0      high    (okay)
+      // 5:     0       0      low     (bad)
+      if ((swapsize != 0 && swapfree < check_memory_min_swapfree_kb) ||
+          (swapsize == 0 && memfree < check_memory_min_memfree_kb)) {
+        cop_log(COP_WARNING, "Low memory available (swap: %dkB, mem: %dkB)\n", (int) swapfree, (int) memfree);
+        cop_log(COP_WARNING, "Killing '%s' and '%s'\n", manager_binary, server_binary);
+        manager_failures = 0;
+        safe_kill(manager_lockfile, manager_binary, true);
+        server_failures = 0;
+        safe_kill(server_lockfile, server_binary, false);
+      }
+    } else {
+      cop_log(COP_WARNING, "Unable to open /proc/meminfo: %s\n", strerror(errno));
+    }
+  }
+#endif
+  cop_log_trace("Leaving check_memory()\n");
+}
+
+static int
+check_no_run()
+{
+  char path[PATH_NAME_MAX * 2];
+  struct stat info;
+  int err;
+
+  cop_log_trace("Entering check_no_run()\n");
+  snprintf(path, sizeof(path), "%s/no_cop", runtime_dir);
+
+  do {
+    err = stat(path, &info);
+  } while ((err < 0) && (transient_error(errno, TRANSIENT_ERROR_WAIT_MS)));
+
+  if (err < 0) {
+    cop_log_trace("Leaving check_no_run() --> 0\n");
+    return 0;
+  }
+
+  cop_log(COP_WARNING, "encountered \"%s\" file...exiting\n", path);
+  cop_log_trace("Leaving check_no_run() --> -1\n");
+  return -1;
+}
+
+// Changed function from taking no argument and returning void
+// to taking a void* and returning a void*. The change was made
+// so that we can call ink_thread_create() on this function
+// in the case of running cop as a win32 service.
+static void*
+check(void *arg)
+{
+  bool mgmt_init = false;
+  cop_log_trace("Entering check()\n");
+
+  for (;;) {
+    // problems with the ownership of this file as root Make sure it is
+    // owned by the admin user
+    chown_file_to_admin_user(manager_lockfile);
+    chown_file_to_admin_user(server_lockfile);
+
+    alarm(2 * (sleep_time + manager_timeout * 2 + server_timeout));
+
+    if (check_no_run() < 0) {
+      break;
+    }
+    // Log any SIGCLD singals we received
+    if (child_pid > 0) {
+      if (WIFEXITED(child_status) == 0) {
+        // Child terminated abnormally
+        cop_log(COP_WARNING,
+                "cop received non-normal child status signal [%d %d]\n", child_pid, WEXITSTATUS(child_status));
+      } else {
+        // normal termination
+        cop_log(COP_WARNING, "cop received child status signal [%d %d]\n", child_pid, child_status);
+      }
+      if (WIFSIGNALED(child_status)) {
+        int sig = WTERMSIG(child_status);
+        cop_log(COP_WARNING, "child terminated due to signal %d: %s\n", sig, strsignal(sig));
+      }
+
+      child_pid = 0;
+      child_status = 0;
+    }
+
+    // Re-read the config file information
+    config_reload_records();
+
+    // Check to make sure the programs are running
+    check_programs();
+
+    // Check to see if we're running out of free memory
+    check_memory();
+
+    // Pause to catch our breath. (10 seconds).
+    // Use 'millisleep()' because normal 'sleep()' interferes with
+    // the SIGALRM signal which we use to heartbeat the cop.
+    millisleep(sleep_time * 1000);
+
+    // We do this after the first round of checks, since the first "check" will spawn traffic_manager
+    if (!mgmt_init) {
+      TSInit(Layout::get()->runtimedir, static_cast<TSInitOptionT>(TS_MGMT_OPT_NO_EVENTS));
+      mgmt_init = true;
+    }
+  }
+
+  // Done with the mgmt API.
+  TSTerminate();
+
+  cop_log_trace("Leaving check()\n");
+  return arg;
+}
+
+
+static void
+check_lockfile()
+{
+  int err;
+  pid_t holding_pid;
+
+  cop_log_trace("Entering check_lockfile()\n");
+  Lockfile cop_lf(cop_lockfile);
+  err = cop_lf.Get(&holding_pid);
+  if (err < 0) {
+    cop_log(COP_WARNING, "periodic cop heartbeat couldn't open '%s' (errno %d)\n", cop_lockfile, -err);
+    exit(1);
+  } else if (err == 0) {
+    cop_log(COP_DEBUG, "periodic heartbeat successful, another cop still on duty\n");
+    exit(1);
+  }
+
+  cop_log(COP_NOTICE, "--- Cop Starting [Version: %s] ---\n", appVersionInfo.FullVersionInfoStr);
+  cop_log_trace("Leaving check_lockfile()\n");
+}
+
+static void
+init_signals()
+{
+  struct sigaction action;
+
+  cop_log_trace("Entering init_signals()\n");
+  // Handle the SIGTERM and SIGINT signal:
+  // We kill the process group and wait() for all children
+  action.sa_handler = sig_term;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = 0;
+
+  sigaction(SIGTERM, &action, NULL);
+  sigaction(SIGINT, &action, NULL);
+
+  // Handle the SIGCHLD signal. We simply reap all children that
+  // die (which should only be spawned traffic_manager's).
+  action.sa_handler = sig_child;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = 0;
+
+  sigaction(SIGCHLD, &action, NULL);
+
+  // Handle a bunch of fatal signals. We simply call abort() when
+  // these signals arrive in order to generate a core. There is some
+  // difficulty with generating core files when linking with libthread
+  // under solaris.
+#if defined(solaris)
+  action.sa_handler = NULL;
+  action.sa_sigaction = sig_fatal;
+#else
+  action.sa_handler = sig_fatal;
+#endif
+  sigemptyset(&action.sa_mask);
+#if defined(solaris)
+  action.sa_flags = SA_SIGINFO;
+#else
+  action.sa_flags = 0;
+#endif
+
+  sigaction(SIGQUIT, &action, NULL);
+  sigaction(SIGILL, &action, NULL);
+  sigaction(SIGFPE, &action, NULL);
+  sigaction(SIGBUS, &action, NULL);
+  sigaction(SIGSEGV, &action, NULL);
+#if !defined(linux)
+  sigaction(SIGEMT, &action, NULL);
+  sigaction(SIGSYS, &action, NULL);
+#endif
+
+  // Handle the SIGALRM signal. We use this signal to make sure the
+  // cop never wedges. It gets reset every time through its loop. If
+  // the alarm ever expires we treat it as a fatal signal and dump
+  // core, secure in the knowledge we'll get restarted.
+  set_alarm_death();
+
+  action.sa_handler = sig_ignore;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = 0;
+
+  sigaction(SIGPIPE, &action, NULL);
+  cop_log_trace("Leaving init_signals()\n");
+}
+
+static void
+init_lockfiles()
+{
+
+  cop_log_trace("Entering init_lockfiles()\n");
+  Layout::relative_to(cop_lockfile, sizeof(cop_lockfile), runtime_dir, COP_LOCK);
+  Layout::relative_to(manager_lockfile, sizeof(manager_lockfile), runtime_dir, MANAGER_LOCK);
+  Layout::relative_to(server_lockfile, sizeof(server_lockfile), runtime_dir, SERVER_LOCK);
+
+  cop_log_trace("Leaving init_lockfiles()\n");
+}
+
+inline static void
+init_syslog()
+{
+  openlog("traffic_cop", LOG_PID | LOG_NDELAY | LOG_NOWAIT, LOG_DAEMON);
+}
+
+static void
+init_config_file()
+{
+  struct stat info;
+  const char * config_dir;
+
+  cop_log_trace("Entering init_config_file()\n");
+
+  config_dir = Layout::get()->sysconfdir;
+  if (stat(config_dir, &info) < 0) {
+    cop_log(COP_FATAL, "unable to locate config directory '%s'\n",config_dir);
+    cop_log(COP_FATAL, " please try setting correct root path in env variable TS_ROOT \n");
+    exit(1);
+  }
+
+  Layout::relative_to(config_file, sizeof(config_file), config_dir, "records.config.shadow");
+  if (stat(config_file, &info) < 0) {
+    Layout::relative_to(config_file, sizeof(config_file), config_dir, "records.config");
+    if (stat(config_file, &info) < 0) {
+      cop_log(COP_FATAL, "unable to locate \"%s/records.config\" or \"%s/records.config.shadow\"\n", config_dir, config_dir);
+      exit(1);
+    }
+  }
+  cop_log_trace("Leaving init_config_file()\n");
+}
+
+static void
+init()
+{
+  struct stat info;
+
+  cop_log_trace("Entering init()\n");
+
+  RecConfigFileInit();
+
+  init_signals();
+  init_syslog();
+
+  init_config_file();
+  config_reload_records();
+
+  runtime_dir = config_read_runtime_dir();
+  if (stat(runtime_dir, &info) < 0) {
+    cop_log(COP_FATAL, "unable to locate local state directory '%s'\n",runtime_dir);
+    cop_log(COP_FATAL, " please try setting correct root path in either env variable TS_ROOT \n");
+    exit(1);
+  }
+
+  init_lockfiles();
+  check_lockfile();
+
+  cop_log_trace("Leaving init()\n");
+}
+
+static const ArgumentDescription argument_descriptions[] = {
+  { "debug", 'd', "Enable debug logging", "F", &debug_flag, NULL, NULL },
+  { "stdout", 'o', "Print log messages to standard output", "F", &stdout_flag, NULL, NULL },
+  { "stop", 's', "Send child processes SIGSTOP instead of SIGKILL", "F", &stop_flag, NULL, NULL },
+  { "version", 'V', "Print Version String", "T", &version_flag, NULL, NULL},
+};
+
+int
+main(int /* argc */, char *argv[])
+{
+  int fd;
+  appVersionInfo.setup(PACKAGE_NAME,"traffic_cop", PACKAGE_VERSION, __DATE__, __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+
+  // Before accessing file system initialize Layout engine
+  Layout::create();
+
+  process_args(argument_descriptions, countof(argument_descriptions), argv);
+
+  // Check for version number request
+  if (version_flag) {
+    fprintf(stderr, "%s\n", appVersionInfo.FullVersionInfoStr);
+    exit(0);
+  }
+
+  if (stop_flag) {
+    cop_log_trace("Cool! I think I'll be a STOP cop!");
+    killsig = SIGSTOP;
+  }
+
+  signal(SIGHUP, SIG_IGN);
+  signal(SIGTSTP, SIG_IGN);
+  signal(SIGTTOU, SIG_IGN);
+  signal(SIGTTIN, SIG_IGN);
+
+  // setup supplementary groups if it is not set. any way, worth a try.
+  if (0 == getgroups(0, NULL)) {
+    uid_t uid = getuid();
+    gid_t gid = getgid();
+
+    const int bufSize = 1024;
+    char buf[bufSize];
+
+    struct passwd passwdInfo;
+    struct passwd *ppasswd = NULL;
+    int res;
+    res = getpwuid_r(uid, &passwdInfo, buf, bufSize, &ppasswd);
+    if (!res && ppasswd) {
+        initgroups(ppasswd->pw_name,gid);
+    }
+  }
+
+  setsid();                     // Important, thanks Vlad. :)
+#if (defined(freebsd) && !defined(kfreebsd)) || defined(openbsd)
+  setpgrp(0,0);
+#else
+  setpgrp();
+#endif
+
+  // Detach STDIN, STDOUT, and STDERR (basically, "nohup"). /leif
+  if (!stdout_flag) {
+    close(STDIN_FILENO);
+    close(STDOUT_FILENO);
+    close(STDERR_FILENO);
+    if ((fd = open("/dev/null", O_WRONLY, 0)) >= 0) {
+      fcntl(fd, F_DUPFD, STDIN_FILENO);
+      fcntl(fd, F_DUPFD, STDOUT_FILENO);
+      fcntl(fd, F_DUPFD, STDERR_FILENO);
+      close(fd);
+    } else {
+      ink_fputln(stderr, "Unable to open /dev/null");
+      return 0;
+    }
+  }
+
+  // Initialize and start it up.
+  init();
+  check(NULL);
+
+  return 0;
+}
+
diff --git a/cmd/traffic_line/Makefile.am b/cmd/traffic_line/Makefile.am
new file mode 100644
index 00000000..594a874a
--- /dev/null
+++ b/cmd/traffic_line/Makefile.am
@@ -0,0 +1,36 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt/api/include
+
+bin_PROGRAMS = traffic_line
+
+traffic_line_SOURCES = \
+  traffic_line.cc
+
+traffic_line_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_line_LDADD = \
+  $(top_builddir)/mgmt/api/libtsmgmtshare.la \
+  $(top_builddir)/mgmt/api/libtsmgmt.la \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBTCL@ @OPENSSL_LIBS@
diff --git a/cmd/traffic_line/Makefile.in b/cmd/traffic_line/Makefile.in
new file mode 100644
index 00000000..a885a1d8
--- /dev/null
+++ b/cmd/traffic_line/Makefile.in
@@ -0,0 +1,902 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
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+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+bin_PROGRAMS = traffic_line$(EXEEXT)
+subdir = cmd/traffic_line
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
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+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
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+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
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+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
+	test -n "$$list" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(bindir)" && rm -f $$files
+
+clean-binPROGRAMS:
+	@list='$(bin_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+traffic_line$(EXEEXT): $(traffic_line_OBJECTS) $(traffic_line_DEPENDENCIES) $(EXTRA_traffic_line_DEPENDENCIES) 
+	@rm -f traffic_line$(EXEEXT)
+	$(AM_V_CXXLD)$(traffic_line_LINK) $(traffic_line_OBJECTS) $(traffic_line_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/traffic_line.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
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+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
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+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
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+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
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+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
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+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS)
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
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+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
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+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS
+
+install-html: install-html-am
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+
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+install-man:
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+install-pdf-am:
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+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean \
+	clean-binPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am uninstall-binPROGRAMS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/cmd/traffic_line/traffic_line.cc b/cmd/traffic_line/traffic_line.cc
new file mode 100644
index 00000000..59391515
--- /dev/null
+++ b/cmd/traffic_line/traffic_line.cc
@@ -0,0 +1,376 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "ink_args.h"
+#include "I_Version.h"
+#include "Tokenizer.h"
+#include "TextBuffer.h"
+#include "mgmtapi.h"
+
+static const char *programName;
+
+static char ReadVar[1024];
+static char MatchVar[1024];
+static char SetVar[1024];
+static char VarValue[1024];
+static int ReRead;
+static int Shutdown;
+static int BounceCluster;
+static int BounceLocal;
+static int QueryDeadhosts;
+static int Startup;
+static int ShutdownMgmtCluster;
+static int ShutdownMgmtLocal;
+static int ClearCluster;
+static int ClearNode;
+static char ZeroCluster[1024];
+static char ZeroNode[1024];
+static char StorageCmdOffline[1024];
+static int ShowAlarms;
+static int ShowStatus;
+static char ClearAlarms[1024];
+static int VersionFlag;
+
+static TSMgmtError
+handleArgInvocation()
+{
+  if (ReRead == 1) {
+    return TSReconfigure();
+  } else if (ShutdownMgmtCluster == 1) {
+    return TSRestart(true);
+  } else if (ShutdownMgmtLocal == 1) {
+    return TSRestart(false);
+  } else if (Shutdown == 1) {
+    return TSProxyStateSet(TS_PROXY_OFF, TS_CACHE_CLEAR_OFF);
+  } else if (BounceCluster == 1) {
+    return TSBounce(true);
+  } else if (BounceLocal == 1) {
+    return TSBounce(false);
+  } else if (Startup == 1) {
+    return TSProxyStateSet(TS_PROXY_ON, TS_CACHE_CLEAR_OFF);
+  } else if (ClearCluster == 1) {
+    return TSStatsReset(true, NULL);
+  } else if (ClearNode == 1) {
+    return TSStatsReset(false, NULL);
+  } else if (*ZeroNode != '\0' || *ZeroCluster != '\0') {
+    TSMgmtError err;
+    TSRecordEle *rec_ele = TSRecordEleCreate();
+    char *name = *ZeroNode ? ZeroNode : ZeroCluster;
+
+    if ((err = TSRecordGet(name, rec_ele)) != TS_ERR_OKAY) {
+      fprintf(stderr, "%s: %s\n", programName, TSGetErrorMessage(err));
+      TSRecordEleDestroy(rec_ele);
+      return err;
+    }
+    TSRecordEleDestroy(rec_ele);
+    return TSStatsReset(*ZeroCluster ? true : false, name);
+  } else if (QueryDeadhosts == 1) {
+    fprintf(stderr, "Query Deadhosts is not implemented, it requires support for congestion control.\n");
+    fprintf(stderr, "For more details, examine the old code in cli/CLI.cc: QueryDeadhosts()\n");
+    return TS_ERR_FAIL;
+  } else if (*StorageCmdOffline) {
+    return TSStorageDeviceCmdOffline(StorageCmdOffline);
+  } else if (ShowAlarms == 1) {
+    // Show all active alarms, this was moved from the old traffic_shell implementation (show:alarms).
+    TSList events = TSListCreate();
+
+    if (TS_ERR_OKAY != TSActiveEventGetMlt(events)) {
+      TSListDestroy(events);
+      fprintf(stderr, "Error Retrieving Alarm List\n");
+      return TS_ERR_FAIL;
+    }
+
+    int count = TSListLen(events);
+
+    if (count > 0) {
+      printf("Active Alarms\n");
+      for (int i = 0; i < count; i++) {
+        char* name = static_cast<char *>(TSListDequeue(events));
+        printf("  %d. %s\n", i + 1, name);
+      }
+    } else {
+      printf("\nNo active alarms.\n");
+    }
+    TSListDestroy(events);
+    return TS_ERR_OKAY;
+  } else if (*ClearAlarms != '\0') {
+    // Clear (some) active alarms, this was moved from the old traffic_shell implementation (config:alarm)
+    TSList events = TSListCreate();
+    size_t len = strlen(ClearAlarms);
+
+    if (TS_ERR_OKAY != TSActiveEventGetMlt(events)) {
+      TSListDestroy(events);
+      fprintf(stderr, "Error Retrieving Alarm List\n");
+      return TS_ERR_FAIL;
+    }
+
+    int count = TSListLen(events);
+
+    if (count == 0) {
+      printf("No Alarms to resolve\n");
+      TSListDestroy(events);
+      return TS_ERR_OKAY;
+    }
+
+    int errors = 0;
+    bool all = false;
+    int num = -1;
+
+    if ((3 == len) && (0 == strncasecmp(ClearAlarms, "all", len))) {
+      all = true;
+    } else  {
+      num = strtol(ClearAlarms, NULL, 10) - 1;
+      if (num <= 0)
+        num = -1;
+    }
+
+    for (int i = 0; i < count; i++) {
+      char* name = static_cast<char*>(TSListDequeue(events));
+
+      if (all || ((num > -1) && (num == i)) || ((strlen(name) == len) && (0 == strncasecmp(ClearAlarms, name, len)))) {
+        if (TS_ERR_OKAY != TSEventResolve(name)) {
+          fprintf(stderr, "Errur: Unable to resolve alarm %s\n", name);
+          ++errors;
+        }
+        if (num > 0) // If a specific event number was specified, we can stop now
+          break;
+      }
+    }
+    TSListDestroy(events);
+    return (errors > 0 ? TS_ERR_FAIL: TS_ERR_OKAY);
+  } else if (ShowStatus == 1) {
+    switch (TSProxyStateGet()) {
+    case TS_PROXY_ON:
+      printf("Proxy -- on\n");
+      break;
+    case TS_PROXY_OFF:
+      printf("Proxy -- off\n");
+      break;
+    case TS_PROXY_UNDEFINED:
+      printf("Proxy status undefined\n");
+      break;
+    }
+    return TS_ERR_OKAY;
+  } else if (*ReadVar != '\0') {        // Handle a value read
+    if (*SetVar != '\0' || *VarValue != '\0') {
+      fprintf(stderr, "%s: Invalid Argument Combination: Can not read and set values at the same time\n", programName);
+      return TS_ERR_FAIL;
+    } else {
+      TSMgmtError err;
+      TSRecordEle *rec_ele = TSRecordEleCreate();
+
+      if ((err = TSRecordGet(ReadVar, rec_ele)) != TS_ERR_OKAY) {
+        fprintf(stderr, "%s: %s\n", programName, TSGetErrorMessage(err));
+      } else {
+        switch (rec_ele->rec_type) {
+        case TS_REC_INT:
+          printf("%" PRId64 "\n", rec_ele->valueT.int_val);
+          break;
+        case TS_REC_COUNTER:
+          printf("%" PRId64 "\n", rec_ele->valueT.counter_val);
+          break;
+        case TS_REC_FLOAT:
+          printf("%f\n", rec_ele->valueT.float_val);
+          break;
+        case TS_REC_STRING:
+          printf("%s\n", rec_ele->valueT.string_val);
+          break;
+        default:
+          fprintf(stderr, "%s: unknown record type (%d)\n", programName, rec_ele->rec_type);
+          err = TS_ERR_FAIL;
+          break;
+        }
+      }
+      TSRecordEleDestroy(rec_ele);
+      return err;
+    }
+  } else if (*MatchVar != '\0') {        // Handle a value read
+    if (*SetVar != '\0' || *VarValue != '\0') {
+      fprintf(stderr, "%s: Invalid Argument Combination: Can not read and set values at the same time\n", programName);
+      return TS_ERR_FAIL;
+    } else {
+      TSMgmtError err;
+      TSList list = TSListCreate();
+
+      if ((err = TSRecordGetMatchMlt(MatchVar, list)) != TS_ERR_OKAY) {
+        fprintf(stderr, "%s: %s\n", programName, TSGetErrorMessage(err));
+      }
+
+      // If the RPC call failed, the list will be empty, so we won't print anything. Otherwise,
+      // print all the results, freeing them as we go.
+      for (TSRecordEle * rec_ele = (TSRecordEle *) TSListDequeue(list); rec_ele;
+          rec_ele = (TSRecordEle *) TSListDequeue(list)) {
+        switch (rec_ele->rec_type) {
+        case TS_REC_INT:
+          printf("%s %" PRId64 "\n", rec_ele->rec_name, rec_ele->valueT.int_val);
+          break;
+        case TS_REC_COUNTER:
+          printf("%s %" PRId64 "\n", rec_ele->rec_name, rec_ele->valueT.counter_val);
+          break;
+        case TS_REC_FLOAT:
+          printf("%s %f\n", rec_ele->rec_name, rec_ele->valueT.float_val);
+          break;
+        case TS_REC_STRING:
+          printf("%s %s\n", rec_ele->rec_name, rec_ele->valueT.string_val);
+          break;
+        default:
+          // just skip it ...
+          break;
+        }
+
+        TSRecordEleDestroy(rec_ele);
+      }
+
+      TSListDestroy(list);
+      return err;
+    }
+  } else if (*SetVar != '\0') { // Setting a variable
+    if (*VarValue == '\0') {
+      fprintf(stderr, "%s: Set requires a -v argument\n", programName);
+      return TS_ERR_FAIL;
+    } else {
+      TSMgmtError err;
+      TSActionNeedT action;
+
+      if ((err = TSRecordSet(SetVar, VarValue, &action)) != TS_ERR_OKAY) {
+        fprintf(stderr, "%s: Please correct your variable name and|or value\n", programName);
+        return err;
+      }
+
+      switch (action) {
+      case TS_ACTION_SHUTDOWN:
+        printf("Set %s, full shutdown required\n", SetVar);
+        break;
+      case TS_ACTION_RESTART:
+        printf("Set %s, restart required\n", SetVar);
+        break;
+      case TS_ACTION_RECONFIGURE:
+        // printf("Set %s, reconfiguration required\n", SetVar);
+        break;
+      case TS_ACTION_DYNAMIC:
+      default:
+        printf("Set %s\n", SetVar);
+        break;
+      }
+
+      return err;
+    }
+  } else if (*VarValue != '\0') {       // We have a value but no variable to set
+    fprintf(stderr, "%s: Must specify variable to set with -s when using -v\n", programName);
+    return TS_ERR_FAIL;
+  }
+
+  fprintf(stderr, "%s: No arguments specified\n", programName);
+  return TS_ERR_FAIL;
+}
+
+int
+main(int /* argc ATS_UNUSED */, char **argv)
+{
+  AppVersionInfo appVersionInfo;
+  TSMgmtError status;
+
+  programName = argv[0];
+
+  ReadVar[0] = '\0';
+  MatchVar[0] = '\0';
+  SetVar[0] = '\0';
+  VarValue[0] = '\0';
+  ReRead = 0;
+  Shutdown = 0;
+  BounceCluster = 0;
+  BounceLocal = 0;
+  QueryDeadhosts = 0;
+  Startup = 0;
+  ShutdownMgmtCluster = 0;
+  ShutdownMgmtLocal = 0;
+  ClearCluster = 0;
+  ClearNode = 0;
+  ZeroCluster[0] = '\0';
+  ZeroNode[0] = '\0';
+  VersionFlag = 0;
+  *StorageCmdOffline = 0;
+  ShowAlarms = 0;
+  ShowStatus = 0;
+  ClearAlarms[0] = '\0';
+
+  // build the application information structure
+  appVersionInfo.setup(PACKAGE_NAME,"traffic_line", PACKAGE_VERSION, __DATE__, __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+
+/* Argument description table used to describe how to parse command line args, */
+/* see 'ink_args.h' for meanings of the various fields */
+  ArgumentDescription argument_descriptions[] = {
+    {"query_deadhosts", 'q', "Query congested sites", "F", &QueryDeadhosts, NULL, NULL},
+    {"read_var", 'r', "Read Variable", "S1024", &ReadVar, NULL, NULL},
+    {"match_var", 'm', "Match Variable", "S1024", &MatchVar, NULL, NULL},
+    {"set_var", 's', "Set Variable (requires -v option)", "S1024", &SetVar, NULL, NULL},
+    {"value", 'v', "Set Value (used with -s option)", "S1024", &VarValue, NULL, NULL},
+    {"help", 'h', "Help", NULL, NULL, NULL, usage},
+    {"reread_config", 'x', "Reread Config Files", "F", &ReRead, NULL, NULL},
+    {"restart_cluster", 'M', "Restart traffic_manager (cluster wide)", "F", &ShutdownMgmtCluster, NULL, NULL},
+    {"restart_local", 'L', "Restart traffic_manager (local node)", "F", &ShutdownMgmtLocal, NULL, NULL},
+    {"shutdown", 'S', "Shutdown traffic_server (local node)", "F", &Shutdown, NULL, NULL},
+    {"startup", 'U', "Start traffic_server (local node)", "F", &Startup, NULL, NULL},
+    {"bounce_cluster", 'B', "Bounce traffic_server (cluster wide)", "F", &BounceCluster, NULL, NULL},
+    {"bounce_local", 'b', "Bounce local traffic_server", "F", &BounceLocal, NULL, NULL},
+    {"clear_cluster", 'C', "Clear Statistics (cluster wide)", "F", &ClearCluster, NULL, NULL},
+    {"clear_node", 'c', "Clear Statistics (local node)", "F", &ClearNode, NULL, NULL},
+    {"zero_cluster", 'Z', "Zero Specific Statistic (cluster wide)", "S1024", &ZeroCluster, NULL, NULL},
+    {"zero_node", 'z', "Zero Specific Statistic (local node)", "S1024", &ZeroNode, NULL, NULL},
+    {"offline", '-', "Mark cache storage offline", "S1024", &StorageCmdOffline, NULL, NULL},
+    {"alarms", '-', "Show all alarms", "F", &ShowAlarms, NULL, NULL},
+    {"clear_alarms", '-', "Clear specified, or all,  alarms", "S1024", &ClearAlarms, NULL, NULL},
+    {"status", '-', "Show proxy server status", "F", &ShowStatus, NULL, NULL},
+    {"version", 'V', "Print Version Id", "T", &VersionFlag, NULL, NULL},
+  };
+
+  // Process command line arguments and dump into variables
+  process_args(argument_descriptions, countof(argument_descriptions), argv);
+
+  // check for the version number request
+  if (VersionFlag) {
+    ink_fputln(stderr, appVersionInfo.FullVersionInfoStr);
+    exit(0);
+  }
+
+  // Connect to Local Manager and do it.
+  if (TS_ERR_OKAY != TSInit(NULL, static_cast<TSInitOptionT>(TS_MGMT_OPT_NO_EVENTS | TS_MGMT_OPT_NO_SOCK_TESTS))) {
+    fprintf(stderr, "error: could not connect to management port, make sure traffic_manager is running\n");
+    exit(1);
+  }
+    
+  status = handleArgInvocation();
+
+  // Done with the mgmt API.
+  TSTerminate();
+
+  if (TS_ERR_OKAY != status) {
+    if (ReadVar[0] == '\0' && SetVar[0] == '\0')
+      fprintf(stderr, "error: the requested command failed\n");
+    exit(1);
+  }
+
+  exit(0);
+}
diff --git a/cmd/traffic_top/Makefile.am b/cmd/traffic_top/Makefile.am
new file mode 100644
index 00000000..d9fc2e59
--- /dev/null
+++ b/cmd/traffic_top/Makefile.am
@@ -0,0 +1,41 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# We only build tstop if libcurses and libcurl are available.
+if BUILD_TSTOP
+
+bin_PROGRAMS = traffic_top
+
+AM_CPPFLAGS = $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/ts -I$(top_builddir)/lib/ts
+
+traffic_top_CPPFLAGS = \
+  -I$(top_srcdir)/mgmt/api/include
+traffic_top_CXXFLAGS = \
+  @CURL_CFLAGS@
+
+traffic_top_SOURCES = traffic_top.cc
+traffic_top_LDADD = \
+  $(top_builddir)/mgmt/api/libtsmgmtshare.la \
+  $(top_builddir)/mgmt/api/libtsmgmt.la \
+  @CURL_LIBS@ @CURSES_LIB@
+
+# Install a compatibility symlink because traffic_top was named tstop in previous releases.
+install-exec-hook:
+	cd $(DESTDIR)$(bindir) && $(RM) tstop && $(LN_S) traffic_top tstop
+endif
diff --git a/cmd/traffic_top/Makefile.in b/cmd/traffic_top/Makefile.in
new file mode 100644
index 00000000..c4cccb33
--- /dev/null
+++ b/cmd/traffic_top/Makefile.in
@@ -0,0 +1,922 @@
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+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
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+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
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+  esac; \
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+  if $(am__is_gnu_make); then \
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+am__traffic_top_SOURCES_DIST = traffic_top.cc
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+@BUILD_TSTOP_TRUE@	traffic_top-traffic_top.$(OBJEXT)
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+@BUILD_TSTOP_TRUE@traffic_top_DEPENDENCIES =  \
+@BUILD_TSTOP_TRUE@	$(top_builddir)/mgmt/api/libtsmgmtshare.la \
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+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(traffic_top_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: install-am install-exec-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean \
+	clean-binPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-exec-hook install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-binPROGRAMS
+
+
+# Install a compatibility symlink because traffic_top was named tstop in previous releases.
+@BUILD_TSTOP_TRUE@install-exec-hook:
+@BUILD_TSTOP_TRUE@	cd $(DESTDIR)$(bindir) && $(RM) tstop && $(LN_S) traffic_top tstop
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/cmd/traffic_top/README b/cmd/traffic_top/README
new file mode 100644
index 00000000..10f33b70
--- /dev/null
+++ b/cmd/traffic_top/README
@@ -0,0 +1,4 @@
+Top type program for Apache Traffic Server that displays common
+statistical information about the server.  Requires the server to be
+running the stats_over_http plugin.
+
diff --git a/cmd/traffic_top/stats.h b/cmd/traffic_top/stats.h
new file mode 100644
index 00000000..860342f1
--- /dev/null
+++ b/cmd/traffic_top/stats.h
@@ -0,0 +1,456 @@
+/** @file
+
+    Include file for the tstop stats.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#define __STDC_FORMAT_MACROS 1
+
+#include <curl/curl.h>
+#include <map>
+#include <string>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include "mgmtapi.h"
+
+using namespace std;
+
+struct LookupItem {
+  LookupItem(const char *s, const char *n, const int t): pretty(s), name(n), type(t) {}
+  LookupItem(const char *s, const char *n, const char *d, const int t): pretty(s), name(n), numerator(n), denominator(d), type(t) {}
+  const char *pretty;
+  const char *name;
+  const char *numerator;
+  const char *denominator;
+  int type;
+};
+extern size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream);
+extern char curl_error[CURL_ERROR_SIZE];
+extern string response;
+
+namespace constant {
+  const char global[] = "\"global\": {\n";
+  const char start[] = "\"proxy.process.";
+  const char seperator[] = "\": \"";
+  const char end[] = "\",\n";
+};
+
+
+//----------------------------------------------------------------------------
+class Stats {
+public:
+  Stats(const string &url): _url(url) {
+
+    if (url != "") {
+      if (_url.substr(0, 4) != "http") {
+        // looks like it is a host using it the old way
+        _url = "http://" + _url + "/_stats";
+      }
+
+      // set the host
+      size_t start = _url.find(":");
+      size_t end = _url.find("/", start + 3);
+      _host = _url.substr(start + 3, end - start - 3);
+      end = _host.find(":");
+      if (end != string::npos) {
+        _host = _host.substr(0, end);
+      }
+    } else {
+      char hostname[25];
+      hostname[sizeof(hostname) - 1] = '\0';
+      gethostname(hostname, sizeof(hostname) - 1);
+      _host = hostname;
+    }
+
+    _stats = NULL;
+    _old_stats = NULL;
+    _absolute = false;
+    lookup_table.insert(make_pair("version", LookupItem("Version", "proxy.process.version.server.short", 1)));
+    lookup_table.insert(make_pair("disk_used", LookupItem("Disk Used", "proxy.process.cache.bytes_used", 1)));
+    lookup_table.insert(make_pair("disk_total", LookupItem("Disk Total", "proxy.process.cache.bytes_total", 1)));
+    lookup_table.insert(make_pair("ram_used", LookupItem("Ram Used", "proxy.process.cache.ram_cache.bytes_used", 1)));
+    lookup_table.insert(make_pair("ram_total", LookupItem("Ram Total", "proxy.process.cache.ram_cache.total_bytes", 1)));
+    lookup_table.insert(make_pair("lookups", LookupItem("Lookups", "proxy.process.http.cache_lookups", 2)));
+    lookup_table.insert(make_pair("cache_writes", LookupItem("Writes", "proxy.process.http.cache_writes", 2)));
+    lookup_table.insert(make_pair("cache_updates", LookupItem("Updates", "proxy.process.http.cache_updates", 2)));
+    lookup_table.insert(make_pair("cache_deletes", LookupItem("Deletes", "proxy.process.http.cache_deletes", 2)));
+    lookup_table.insert(make_pair("read_active", LookupItem("Read Active", "proxy.process.cache.read.active", 1)));
+    lookup_table.insert(make_pair("write_active", LookupItem("Writes Active", "proxy.process.cache.write.active", 1)));
+    lookup_table.insert(make_pair("update_active", LookupItem("Update Active", "proxy.process.cache.update.active", 1)));
+    lookup_table.insert(make_pair("entries", LookupItem("Entries", "proxy.process.cache.direntries.used", 1)));
+    lookup_table.insert(make_pair("avg_size", LookupItem("Avg Size", "disk_used", "entries", 3)));
+
+    lookup_table.insert(make_pair("dns_time", LookupItem("DNS Time", "proxy.node.dns.lookup_avg_time_ms", 2)));
+    lookup_table.insert(make_pair("dns_hits", LookupItem("DNS hits", "proxy.node.hostdb.total_hits", 2)));
+    lookup_table.insert(make_pair("dns_lookups", LookupItem("DNS lookups", "proxy.node.hostdb.total_lookups", 2)));
+    lookup_table.insert(make_pair("client_req", LookupItem("Requests", "proxy.process.http.incoming_requests", 2)));
+    lookup_table.insert(make_pair("client_conn", LookupItem("New Conn", "proxy.process.http.total_client_connections", 2)));
+    lookup_table.insert(make_pair("client_req_conn", LookupItem("Req/Conn", "client_req", "client_conn", 3)));
+    lookup_table.insert(make_pair("client_curr_conn", LookupItem("Curr Conn", "proxy.process.http.current_client_connections", 1)));
+    lookup_table.insert(make_pair("client_actv_conn", LookupItem("Active Con", "proxy.process.http.current_active_client_connections", 1)));
+
+    lookup_table.insert(make_pair("server_req", LookupItem("Requests", "proxy.process.http.outgoing_requests", 2)));
+    lookup_table.insert(make_pair("server_conn", LookupItem("New Conn", "proxy.process.http.total_server_connections", 2)));
+    lookup_table.insert(make_pair("server_req_conn", LookupItem("Req/Conn", "server_req", "server_conn", 3)));
+    lookup_table.insert(make_pair("server_curr_conn", LookupItem("Curr Conn", "proxy.process.http.current_server_connections", 1)));
+
+
+    lookup_table.insert(make_pair("client_head", LookupItem("Head Bytes", "proxy.process.http.user_agent_response_header_total_size", 2)));
+    lookup_table.insert(make_pair("client_body", LookupItem("Body Bytes", "proxy.process.http.user_agent_response_document_total_size", 2)));
+    lookup_table.insert(make_pair("server_head", LookupItem("Head Bytes", "proxy.process.http.origin_server_response_header_total_size", 2)));
+    lookup_table.insert(make_pair("server_body", LookupItem("Body Bytes", "proxy.process.http.origin_server_response_document_total_size", 2)));
+
+    // not used directly
+    lookup_table.insert(make_pair("ram_hit", LookupItem("Ram Hit", "proxy.process.cache.ram_cache.hits", 2)));
+    lookup_table.insert(make_pair("ram_miss", LookupItem("Ram Misses", "proxy.process.cache.ram_cache.misses", 2)));
+
+
+
+    lookup_table.insert(make_pair("client_abort", LookupItem("Clnt Abort", "proxy.process.http.err_client_abort_count_stat", 2)));
+    lookup_table.insert(make_pair("conn_fail", LookupItem("Conn Fail", "proxy.process.http.err_connect_fail_count_stat", 2)));
+    lookup_table.insert(make_pair("abort", LookupItem("Abort", "proxy.process.http.transaction_counts.errors.aborts", 2)));
+    lookup_table.insert(make_pair("t_conn_fail", LookupItem("Conn Fail", "proxy.process.http.transaction_counts.errors.connect_failed", 2)));
+    lookup_table.insert(make_pair("other_err", LookupItem("Other Err", "proxy.process.http.transaction_counts.errors.other", 2)));
+    // percentage
+    lookup_table.insert(make_pair("ram_ratio", LookupItem("Ram Hit", "ram_hit", "ram_hit_miss", 4)));
+    lookup_table.insert(make_pair("dns_ratio", LookupItem("DNS Hit", "dns_hits", "dns_lookups", 4)));
+
+    // percentage of requests
+    lookup_table.insert(make_pair("fresh", LookupItem("Fresh", "proxy.process.http.transaction_counts.hit_fresh", 5)));
+    lookup_table.insert(make_pair("reval", LookupItem("Revalidate", "proxy.process.http.transaction_counts.hit_revalidated", 5)));
+    lookup_table.insert(make_pair("cold", LookupItem("Cold", "proxy.process.http.transaction_counts.miss_cold", 5)));
+    lookup_table.insert(make_pair("changed", LookupItem("Changed", "proxy.process.http.transaction_counts.miss_changed", 5)));
+    lookup_table.insert(make_pair("not", LookupItem("Not Cache", "proxy.process.http.transaction_counts.miss_not_cacheable", 5)));
+    lookup_table.insert(make_pair("no", LookupItem("No Cache", "proxy.process.http.transaction_counts.miss_client_no_cache", 5)));
+
+    lookup_table.insert(make_pair("fresh_time", LookupItem("Fresh (ms)", "proxy.process.http.transaction_totaltime.hit_fresh", "fresh", 8)));
+    lookup_table.insert(make_pair("reval_time", LookupItem("Reval (ms)", "proxy.process.http.transaction_totaltime.hit_revalidated", "reval", 8)));
+    lookup_table.insert(make_pair("cold_time", LookupItem("Cold (ms)", "proxy.process.http.transaction_totaltime.miss_cold", "cold", 8)));
+    lookup_table.insert(make_pair("changed_time", LookupItem("Chang (ms)", "proxy.process.http.transaction_totaltime.miss_changed", "changed", 8)));
+    lookup_table.insert(make_pair("not_time", LookupItem("Not (ms)", "proxy.process.http.transaction_totaltime.miss_not_cacheable", "not", 8)));
+    lookup_table.insert(make_pair("no_time", LookupItem("No (ms)", "proxy.process.http.transaction_totaltime.miss_client_no_cache", "no", 8)));
+
+    lookup_table.insert(make_pair("get", LookupItem("GET", "proxy.process.http.get_requests", 5)));
+    lookup_table.insert(make_pair("head", LookupItem("HEAD", "proxy.process.http.head_requests", 5)));
+    lookup_table.insert(make_pair("post", LookupItem("POST", "proxy.process.http.post_requests", 5)));
+
+    lookup_table.insert(make_pair("100", LookupItem("100", "proxy.process.http.100_responses", 5)));
+    lookup_table.insert(make_pair("101", LookupItem("101", "proxy.process.http.101_responses", 5)));
+    lookup_table.insert(make_pair("1xx", LookupItem("1xx", "proxy.process.http.1xx_responses", 5)));
+    lookup_table.insert(make_pair("200", LookupItem("200", "proxy.process.http.200_responses", 5)));
+    lookup_table.insert(make_pair("201", LookupItem("201", "proxy.process.http.201_responses", 5)));
+    lookup_table.insert(make_pair("202", LookupItem("202", "proxy.process.http.202_responses", 5)));
+    lookup_table.insert(make_pair("203", LookupItem("203", "proxy.process.http.203_responses", 5)));
+    lookup_table.insert(make_pair("204", LookupItem("204", "proxy.process.http.204_responses", 5)));
+    lookup_table.insert(make_pair("205", LookupItem("205", "proxy.process.http.205_responses", 5)));
+    lookup_table.insert(make_pair("206", LookupItem("206", "proxy.process.http.206_responses", 5)));
+    lookup_table.insert(make_pair("2xx", LookupItem("2xx", "proxy.process.http.2xx_responses", 5)));
+    lookup_table.insert(make_pair("300", LookupItem("300", "proxy.process.http.300_responses", 5)));
+    lookup_table.insert(make_pair("301", LookupItem("301", "proxy.process.http.301_responses", 5)));
+    lookup_table.insert(make_pair("302", LookupItem("302", "proxy.process.http.302_responses", 5)));
+    lookup_table.insert(make_pair("303", LookupItem("303", "proxy.process.http.303_responses", 5)));
+    lookup_table.insert(make_pair("304", LookupItem("304", "proxy.process.http.304_responses", 5)));
+    lookup_table.insert(make_pair("305", LookupItem("305", "proxy.process.http.305_responses", 5)));
+    lookup_table.insert(make_pair("307", LookupItem("307", "proxy.process.http.307_responses", 5)));
+    lookup_table.insert(make_pair("3xx", LookupItem("3xx", "proxy.process.http.3xx_responses", 5)));
+    lookup_table.insert(make_pair("400", LookupItem("400", "proxy.process.http.400_responses", 5)));
+    lookup_table.insert(make_pair("401", LookupItem("401", "proxy.process.http.401_responses", 5)));
+    lookup_table.insert(make_pair("402", LookupItem("402", "proxy.process.http.402_responses", 5)));
+    lookup_table.insert(make_pair("403", LookupItem("403", "proxy.process.http.403_responses", 5)));
+    lookup_table.insert(make_pair("404", LookupItem("404", "proxy.process.http.404_responses", 5)));
+    lookup_table.insert(make_pair("405", LookupItem("405", "proxy.process.http.405_responses", 5)));
+    lookup_table.insert(make_pair("406", LookupItem("406", "proxy.process.http.406_responses", 5)));
+    lookup_table.insert(make_pair("407", LookupItem("407", "proxy.process.http.407_responses", 5)));
+    lookup_table.insert(make_pair("408", LookupItem("408", "proxy.process.http.408_responses", 5)));
+    lookup_table.insert(make_pair("409", LookupItem("409", "proxy.process.http.409_responses", 5)));
+    lookup_table.insert(make_pair("410", LookupItem("410", "proxy.process.http.410_responses", 5)));
+    lookup_table.insert(make_pair("411", LookupItem("411", "proxy.process.http.411_responses", 5)));
+    lookup_table.insert(make_pair("412", LookupItem("412", "proxy.process.http.412_responses", 5)));
+    lookup_table.insert(make_pair("413", LookupItem("413", "proxy.process.http.413_responses", 5)));
+    lookup_table.insert(make_pair("414", LookupItem("414", "proxy.process.http.414_responses", 5)));
+    lookup_table.insert(make_pair("415", LookupItem("415", "proxy.process.http.415_responses", 5)));
+    lookup_table.insert(make_pair("416", LookupItem("416", "proxy.process.http.416_responses", 5)));
+    lookup_table.insert(make_pair("4xx", LookupItem("4xx", "proxy.process.http.4xx_responses", 5)));
+    lookup_table.insert(make_pair("500", LookupItem("500", "proxy.process.http.500_responses", 5)));
+    lookup_table.insert(make_pair("501", LookupItem("501", "proxy.process.http.501_responses", 5)));
+    lookup_table.insert(make_pair("502", LookupItem("502", "proxy.process.http.502_responses", 5)));
+    lookup_table.insert(make_pair("503", LookupItem("503", "proxy.process.http.503_responses", 5)));
+    lookup_table.insert(make_pair("504", LookupItem("504", "proxy.process.http.504_responses", 5)));
+    lookup_table.insert(make_pair("505", LookupItem("505", "proxy.process.http.505_responses", 5)));
+    lookup_table.insert(make_pair("5xx", LookupItem("5xx", "proxy.process.http.5xx_responses", 5)));
+
+    lookup_table.insert(make_pair("s_100", LookupItem("100 B", "proxy.process.http.response_document_size_100", 5)));
+    lookup_table.insert(make_pair("s_1k", LookupItem("1 KB", "proxy.process.http.response_document_size_1K", 5)));
+    lookup_table.insert(make_pair("s_3k", LookupItem("3 KB", "proxy.process.http.response_document_size_3K", 5)));
+    lookup_table.insert(make_pair("s_5k", LookupItem("5 KB", "proxy.process.http.response_document_size_5K", 5)));
+    lookup_table.insert(make_pair("s_10k", LookupItem("10 KB", "proxy.process.http.response_document_size_10K", 5)));
+    lookup_table.insert(make_pair("s_1m", LookupItem("1 MB", "proxy.process.http.response_document_size_1M", 5)));
+    lookup_table.insert(make_pair("s_>1m", LookupItem("> 1 MB", "proxy.process.http.response_document_size_inf", 5)));
+
+
+    // sum together
+    lookup_table.insert(make_pair("ram_hit_miss", LookupItem("Ram Hit+Miss", "ram_hit", "ram_miss", 6)));
+    lookup_table.insert(make_pair("client_net", LookupItem("Net (bits)", "client_head", "client_body", 7)));
+    lookup_table.insert(make_pair("client_size", LookupItem("Total Size", "client_head", "client_body", 6)));
+    lookup_table.insert(make_pair("client_avg_size", LookupItem("Avg Size", "client_size", "client_req", 3)));
+
+    lookup_table.insert(make_pair("server_net", LookupItem("Net (bits)", "server_head", "server_body", 7)));
+    lookup_table.insert(make_pair("server_size", LookupItem("Total Size", "server_head", "server_body", 6)));
+    lookup_table.insert(make_pair("server_avg_size", LookupItem("Avg Size", "server_size", "server_req", 3)));
+
+
+    lookup_table.insert(make_pair("total_time", LookupItem("Total Time", "proxy.process.http.total_transactions_time", 2)));
+    lookup_table.insert(make_pair("client_req_time", LookupItem("Resp (ms)", "total_time", "client_req", 3)));
+  }
+
+  void getStats() {
+
+    if (_url == "") {
+      int64_t value = 0;
+      if (_old_stats != NULL) {
+        delete _old_stats;
+        _old_stats = NULL;
+      }
+      _old_stats = _stats;
+      _stats = new map<string, string>;
+
+      gettimeofday(&_time, NULL);
+      double now = _time.tv_sec + (double)_time.tv_usec / 1000000;
+
+      for (map<string, LookupItem>::const_iterator lookup_it = lookup_table.begin();
+           lookup_it != lookup_table.end(); ++lookup_it) {
+        const LookupItem &item = lookup_it->second;
+
+        if (item.type == 1 || item.type == 2 || item.type == 5 || item.type == 8) {
+          if (strcmp(item.pretty, "Version") == 0) {
+            // special case for Version information
+            TSString strValue = NULL;
+            assert(TSRecordGetString(item.name, &strValue) == TS_ERR_OKAY);
+            string key = item.name;
+            (*_stats)[key] = strValue;
+          } else {
+            assert(TSRecordGetInt(item.name, &value) == TS_ERR_OKAY);
+            string key = item.name;
+            char buffer[32];
+            sprintf(buffer, "%" PRId64, value);
+            string foo = buffer;
+            (*_stats)[key] = foo;
+          }
+        }
+      } 
+      _old_time = _now;
+      _now = now;
+      _time_diff = _now - _old_time;
+    } else {
+      CURL *curl;
+      CURLcode res;
+
+      curl = curl_easy_init();
+      if (curl) {
+        curl_easy_setopt(curl, CURLOPT_URL, _url.c_str());
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+        curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_error);
+
+        // update time
+        gettimeofday(&_time, NULL);
+        double now = _time.tv_sec + (double)_time.tv_usec / 1000000;
+
+        response.clear();
+        response.reserve(32768); // should hopefully be smaller then 32KB
+        res = curl_easy_perform(curl);
+
+        // only if success update stats and time information
+        if (res == 0) {
+          if (_old_stats != NULL) {
+            delete _old_stats;
+            _old_stats = NULL;
+          }
+          _old_stats = _stats;
+          _stats = new map<string, string>;
+
+          // parse
+          parseResponse(response);
+          _old_time = _now;
+          _now = now;
+          _time_diff = _now - _old_time;
+        } else {
+          fprintf(stderr, "Can't fetch url %s", _url.c_str());
+          abort();
+        }
+
+        /* always cleanup */ 
+        curl_easy_cleanup(curl);
+      }
+    }
+  }
+
+  int64_t getValue(const string &key, const map<string, string> *stats) const {
+    map<string, string>::const_iterator stats_it = stats->find(key);
+    if (stats_it == stats->end())
+      return 0;
+    int64_t value = atoll(stats_it->second.c_str());
+    return value;
+  }
+
+  void getStat(const string &key, double &value, int overrideType = 0) {
+    string strtmp;
+    int typetmp;
+    getStat(key, value, strtmp, typetmp, overrideType);
+  }
+
+
+  void getStat(const string &key, string &value) {
+    map<string, LookupItem>::const_iterator lookup_it = lookup_table.find(key);
+    assert(lookup_it != lookup_table.end());
+    const LookupItem &item = lookup_it->second;
+    
+    map<string, string>::const_iterator stats_it = _stats->find(item.name);
+    if (stats_it == _stats->end())
+      value = "";
+    else
+      value = stats_it->second.c_str();
+  }
+
+  void getStat(const string &key, double &value, string &prettyName, int &type, int overrideType = 0) {
+    map<string, LookupItem>::const_iterator lookup_it = lookup_table.find(key);
+    assert(lookup_it != lookup_table.end());
+    const LookupItem &item = lookup_it->second;
+    prettyName = item.pretty;
+    if (overrideType != 0)
+      type = overrideType;
+    else
+      type = item.type;
+
+    if (type == 1 || type == 2 || type == 5 || type == 8) {
+      value = getValue(item.name, _stats);
+      if (key == "total_time") {
+        value = value / 10000000;
+      }
+
+      if ((type == 2 || type == 5 || type == 8) && _old_stats != NULL && _absolute == false) {
+        double old = getValue(item.name, _old_stats);
+        if (key == "total_time") {
+          old = old / 10000000;
+        }
+        value = (value - old) / _time_diff;
+      }
+    } else if (type == 3 || type == 4) {
+      double numerator;
+      double denominator;
+      getStat(item.numerator, numerator);
+      getStat(item.denominator, denominator);
+      if (denominator == 0)
+        value = 0;
+      else
+        value = numerator / denominator;
+      if (type == 4) {
+        value *= 100;
+      }
+    } else if (type == 6 || type == 7) {
+      double numerator;
+      double denominator;
+      getStat(item.numerator, numerator, 2);
+      getStat(item.denominator, denominator, 2);
+      value = numerator + denominator;
+      if (type == 7)
+        value *= 8;
+    }
+
+    if (type == 8) {
+      double denominator;
+      getStat(item.denominator, denominator, 2);
+      if (denominator == 0)
+        value = 0;
+      else
+        value = value / denominator * 1000;
+    }
+
+    if (type == 5) {
+      double denominator = 0;
+      getStat("client_req", denominator);
+      if (denominator == 0)
+        value = 0;
+      else
+        value = value / denominator * 100;
+    }
+  }
+
+  bool toggleAbsolute() {
+    if (_absolute == true)
+      _absolute = false;
+    else
+      _absolute = true;
+
+    return _absolute;
+  }
+
+  void parseResponse(const string &response) {
+    // move past global
+    size_t pos = response.find(constant::global);
+    pos += sizeof(constant::global) - 1;
+
+    // find parts of the line
+    while (1) {
+      size_t start = response.find(constant::start, pos);
+      size_t seperator = response.find(constant::seperator, pos);
+      size_t end = response.find(constant::end, pos);
+  
+      if (start == string::npos || seperator == string::npos || end == string::npos)
+        return;
+
+      //cout << constant::start << " " << start << endl;
+      //cout << constant::seperator << " " << seperator << endl;
+      //cout << constant::end << " " << end << endl;
+
+      string key = response.substr(start + 1, seperator - start - 1);
+      string value = response.substr(seperator + sizeof(constant::seperator) - 1, end - seperator - sizeof(constant::seperator) + 1);
+
+      (*_stats)[key] = value;
+      //cout << "key " << key << " " << "value " << value << endl;
+      pos = end + sizeof(constant::end) - 1;
+      //cout << "pos: " << pos << endl;
+    }
+  }
+
+  const string& getHost() const { return _host; }
+
+  ~Stats() {
+    if (_stats != NULL) {
+      delete _stats;
+    }
+    if (_old_stats != NULL) {
+      delete _old_stats;
+    }
+  }
+
+private:
+  map<string, string> *_stats;
+  map<string, string> *_old_stats;
+  map<string, LookupItem> lookup_table;
+  string _url;
+  string _host;
+  double _old_time;
+  double _now;
+  double _time_diff;
+  struct timeval _time;
+  bool _absolute;
+};
diff --git a/cmd/traffic_top/traffic_top.cc b/cmd/traffic_top/traffic_top.cc
new file mode 100644
index 00000000..cbf87540
--- /dev/null
+++ b/cmd/traffic_top/traffic_top.cc
@@ -0,0 +1,465 @@
+/** @file
+
+    Main file for the traffic_top application.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ink_config.h"
+#include <map>
+#include <list>
+#include <string>
+#include <string.h>
+#include <iostream>
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
+// At least on solaris, the default ncurses defines macros such as
+// clear() that break stdlibc++.
+#define NOMACROS 1
+#define NCURSES_NOMACROS 1
+
+#if defined HAVE_NCURSESW_CURSES_H
+#  include <ncursesw/curses.h>
+#elif defined HAVE_NCURSESW_H
+#  include <ncursesw.h>
+#elif defined HAVE_NCURSES_CURSES_H
+#  include <ncurses/curses.h>
+#elif defined HAVE_NCURSES_H
+#  include <ncurses.h>
+#elif defined HAVE_CURSES_H
+#  include <curses.h>
+#else
+#  error "SysV or X/Open-compatible Curses header file required"
+#endif
+
+#include "stats.h"
+
+using namespace std;
+char curl_error[CURL_ERROR_SIZE];
+string response;
+
+namespace colorPair {
+  const short red = 1;
+  const short yellow = 2;
+  const short green = 3;
+  const short blue = 4;
+  //  const short black = 5;
+  const short grey = 6;
+  const short cyan = 7;
+  const short border = 8;
+};
+
+//----------------------------------------------------------------------------
+static void prettyPrint(const int x, const int y, const double number, const int type) {
+  char buffer[32];
+  char exp = ' ';
+  double my_number = number;
+  short color;
+  if (number > 1000000000000LL) {
+    my_number = number / 1000000000000LL;
+    exp = 'T';
+    color = colorPair::red;
+  } else if (number > 1000000000) {
+    my_number = number / 1000000000;
+    exp = 'G';
+    color = colorPair::red;
+  } else if (number > 1000000) {
+    my_number = number / 1000000;
+    exp = 'M';
+    color = colorPair::yellow;
+  } else if (number > 1000) {
+    my_number = number / 1000;
+    exp = 'K';
+    color = colorPair::cyan;
+  } else if (my_number <= .09) {
+    color = colorPair::grey;
+  } else {
+    color = colorPair::green;
+  }
+
+  if (type == 4 || type == 5) {
+    if (number > 90) {
+      color = colorPair::red;
+    } else if (number > 80) {
+      color = colorPair::yellow;
+    } else if (number > 50) {
+      color = colorPair::blue;
+    } else if (my_number <= .09) {
+      color = colorPair::grey;
+    } else {
+      color = colorPair::green;
+    }
+    snprintf(buffer, sizeof(buffer), "%6.1f%%%%", (double)my_number);
+  } else
+    snprintf(buffer, sizeof(buffer), "%6.1f%c", (double)my_number, exp);
+  attron(COLOR_PAIR(color));
+  attron(A_BOLD);
+  mvprintw(y, x, buffer);
+  attroff(COLOR_PAIR(color));
+  attroff(A_BOLD);
+}
+
+//----------------------------------------------------------------------------
+static void makeTable(const int x, const int y, const list<string> &items, Stats &stats) {
+  int my_y = y;
+
+  for (list<string>::const_iterator it = items.begin(); it != items.end(); ++it) {
+    string prettyName;
+    double value = 0;
+    int type;
+
+    stats.getStat(*it, value, prettyName, type);
+    mvprintw(my_y, x, prettyName.c_str());
+    prettyPrint(x + 10, my_y++, value, type);
+  }
+}
+
+//----------------------------------------------------------------------------
+size_t write_data(void *ptr, size_t size, size_t nmemb, void * /* stream */)
+{
+  response.append((char*)ptr, size * nmemb);
+  //cout << "appending: " << size * nmemb << endl;
+  //int written = fwrite(ptr, size, nmemb, (FILE *)stream);
+  return size * nmemb;
+}
+
+//----------------------------------------------------------------------------
+static void response_code_page(Stats &stats) {
+  attron(COLOR_PAIR(colorPair::border));
+  attron(A_BOLD);
+  mvprintw(0, 0, "                              RESPONSE CODES                                   ");
+  attroff(COLOR_PAIR(colorPair::border));
+  attroff(A_BOLD);
+
+  list<string> response1;
+  response1.push_back("100");
+  response1.push_back("101");
+  response1.push_back("1xx");
+  response1.push_back("200");
+  response1.push_back("201");
+  response1.push_back("202");
+  response1.push_back("203");
+  response1.push_back("204");
+  response1.push_back("205");
+  response1.push_back("206");
+  response1.push_back("2xx");
+  response1.push_back("300");
+  response1.push_back("301");
+  response1.push_back("302");
+  response1.push_back("303");
+  response1.push_back("304");
+  response1.push_back("305");
+  response1.push_back("307");
+  response1.push_back("3xx");
+  makeTable(0, 1, response1, stats);
+
+  list<string> response2;
+  response2.push_back("400");
+  response2.push_back("401");
+  response2.push_back("402");
+  response2.push_back("403");
+  response2.push_back("404");
+  response2.push_back("405");
+  response2.push_back("406");
+  response2.push_back("407");
+  response2.push_back("408");
+  response2.push_back("409");
+  response2.push_back("410");
+  response2.push_back("411");
+  response2.push_back("412");
+  response2.push_back("413");
+  response2.push_back("414");
+  response2.push_back("415");
+  response2.push_back("416");
+  response2.push_back("4xx");
+  makeTable(21, 1, response2, stats);
+
+  list<string> response3;
+  response3.push_back("500");
+  response3.push_back("501");
+  response3.push_back("502");
+  response3.push_back("503");
+  response3.push_back("504");
+  response3.push_back("505");
+  response3.push_back("5xx");
+  makeTable(42, 1, response3, stats);
+}
+
+//----------------------------------------------------------------------------
+static void help(const string &host, const string &version) {
+  timeout(1000);
+
+  while(1) {
+    clear();
+    time_t now = time(NULL);
+    struct tm *nowtm = localtime(&now);
+    char timeBuf[32];
+    strftime(timeBuf, sizeof(timeBuf), "%H:%M:%S", nowtm);
+
+    //clear();
+    attron(A_BOLD); mvprintw(0, 0, "Overview:"); attroff(A_BOLD);
+    mvprintw(1, 0,
+      "traffic_top is a top like program for Apache Traffic Server (ATS). "
+      "There is a lot of statistical information gathered by ATS. "
+      "This program tries to show some of the more important stats and gives a good overview of what the proxy server is doing. "
+      "Hopefully this can be used as a tool for diagnosing the proxy server if there are problems.");
+
+    attron(A_BOLD); mvprintw(7, 0, "Definitions:"); attroff(A_BOLD);
+    mvprintw(8,  0, "Fresh      => Requests that were servered by fresh entries in cache");
+    mvprintw(9,  0, "Revalidate => Requests that contacted the origin to verify if still valid");
+    mvprintw(10, 0, "Cold       => Requests that were not in cache at all");
+    mvprintw(11, 0, "Changed    => Requests that required entries in cache to be updated");
+    mvprintw(12, 0, "Changed    => Requests that can't be cached for some reason");
+    mvprintw(12, 0, "No Cache   => Requests that the client sent Cache-Control: no-cache header");
+
+    attron(COLOR_PAIR(colorPair::border));
+    attron(A_BOLD);
+    mvprintw(23, 0, "%s - %.12s - %.12s      (b)ack                            ", timeBuf, version.c_str(), host.c_str());
+    attroff(COLOR_PAIR(colorPair::border));
+    attroff(A_BOLD);
+    refresh();
+    int x = getch();
+    if (x == 'b')
+      break;
+  }
+}
+
+static void usage()
+{
+  fprintf(stderr, "Usage: traffic_top [-s seconds] [URL|hostname|hostname:port]\n");
+  exit(1);
+}
+
+//----------------------------------------------------------------------------
+void main_stats_page(Stats &stats)
+{
+  attron(COLOR_PAIR(colorPair::border));
+  attron(A_BOLD);
+  mvprintw(0, 0, "         CACHE INFORMATION             ");
+  mvprintw(0, 40, "       CLIENT REQUEST & RESPONSE        ");
+  mvprintw(16, 0, "             CLIENT                    ");
+  mvprintw(16, 40, "           ORIGIN SERVER                ");
+
+  for (int i = 0; i <= 22; ++i) {
+    mvprintw(i, 39, " ");
+  }
+  attroff(COLOR_PAIR(colorPair::border));
+  attroff(A_BOLD);
+
+  list<string> cache1;
+  cache1.push_back("disk_used");
+  cache1.push_back("disk_total");
+  cache1.push_back("ram_used");
+  cache1.push_back("ram_total");
+  cache1.push_back("lookups");
+  cache1.push_back("cache_writes");
+  cache1.push_back("cache_updates");
+  cache1.push_back("cache_deletes");
+  cache1.push_back("read_active");
+  cache1.push_back("write_active");
+  cache1.push_back("update_active");
+  cache1.push_back("entries");
+  cache1.push_back("avg_size");
+  cache1.push_back("dns_lookups");
+  cache1.push_back("dns_hits");
+  makeTable(0, 1, cache1, stats);
+
+  list<string> cache2;
+  cache2.push_back("ram_ratio");
+  cache2.push_back("fresh");
+  cache2.push_back("reval");
+  cache2.push_back("cold");
+  cache2.push_back("changed");
+  cache2.push_back("not");
+  cache2.push_back("no");
+  cache2.push_back("fresh_time");
+  cache2.push_back("reval_time");
+  cache2.push_back("cold_time");
+  cache2.push_back("changed_time");
+  cache2.push_back("not_time");
+  cache2.push_back("no_time");
+  cache2.push_back("dns_ratio");
+  cache2.push_back("dns_time");
+  makeTable(21, 1, cache2, stats);
+
+  list<string> response1;
+  response1.push_back("get");
+  response1.push_back("head");
+  response1.push_back("post");
+  response1.push_back("2xx");
+  response1.push_back("3xx");
+  response1.push_back("4xx");
+  response1.push_back("5xx");
+  response1.push_back("conn_fail");
+  response1.push_back("other_err");
+  response1.push_back("abort");
+  makeTable(41, 1, response1, stats);
+
+  list<string> response2;
+  response2.push_back("200");
+  response2.push_back("206");
+  response2.push_back("301");
+  response2.push_back("302");
+  response2.push_back("304");
+  response2.push_back("404");
+  response2.push_back("502");
+  response2.push_back("s_100");
+  response2.push_back("s_1k");
+  response2.push_back("s_3k");
+  response2.push_back("s_5k");
+  response2.push_back("s_10k");
+  response2.push_back("s_1m");
+  response2.push_back("s_>1m");
+  makeTable(62, 1, response2, stats);
+
+  list<string> client1;
+  client1.push_back("client_req");
+  client1.push_back("client_req_conn");
+  client1.push_back("client_conn");
+  client1.push_back("client_curr_conn");
+  client1.push_back("client_actv_conn");
+  makeTable(0, 17, client1, stats);
+
+  list<string> client2;
+  client2.push_back("client_head");
+  client2.push_back("client_body");
+  client2.push_back("client_avg_size");
+  client2.push_back("client_net");
+  client2.push_back("client_req_time");
+  makeTable(21, 17, client2, stats);
+
+  list<string> server1;
+  server1.push_back("server_req");
+  server1.push_back("server_req_conn");
+  server1.push_back("server_conn");
+  server1.push_back("server_curr_conn");
+  makeTable(41, 17, server1, stats);
+
+  list<string> server2;
+  server2.push_back("server_head");
+  server2.push_back("server_body");
+  server2.push_back("server_avg_size");
+  server2.push_back("server_net");
+  makeTable(62, 17, server2, stats);
+}
+
+//----------------------------------------------------------------------------
+int main(int argc, char **argv)
+{
+  int sleep_time = 5000;
+  bool absolute = false;
+  int opt;
+  while ((opt = getopt(argc, argv, "s:")) != -1) {
+    switch(opt) {
+    case 's':
+      sleep_time = atoi(optarg) * 1000;
+      break;
+    default:
+      usage();
+    }
+  }
+
+  string url = "";
+  if (optind >= argc) {
+    if (TS_ERR_OKAY != TSInit(NULL, static_cast<TSInitOptionT>(TS_MGMT_OPT_NO_EVENTS | TS_MGMT_OPT_NO_SOCK_TESTS))) {
+      fprintf(stderr, "Error: missing URL on command line or error connecting to the local manager\n");
+      usage();
+    }
+  } else {
+    url = argv[optind];
+  }
+  Stats stats(url);
+  stats.getStats();
+  const string &host = stats.getHost();
+
+  initscr();
+  curs_set(0);
+
+  start_color();			/* Start color functionality	*/
+
+  init_pair(colorPair::red, COLOR_RED, COLOR_BLACK);
+  init_pair(colorPair::yellow, COLOR_YELLOW, COLOR_BLACK);
+  init_pair(colorPair::grey, COLOR_BLACK, COLOR_BLACK);
+  init_pair(colorPair::green, COLOR_GREEN, COLOR_BLACK);
+  init_pair(colorPair::blue, COLOR_BLUE, COLOR_BLACK);
+  init_pair(colorPair::cyan, COLOR_CYAN, COLOR_BLACK);
+  init_pair(colorPair::border, COLOR_WHITE, COLOR_BLUE);
+  //  mvchgat(0, 0, -1, A_BLINK, 1, NULL);
+
+
+  enum Page {MAIN_PAGE, RESPONSE_PAGE};
+  Page page = MAIN_PAGE;
+  string page_alt = "(r)esponse";
+
+  while(1) {
+    attron(COLOR_PAIR(colorPair::border));
+    attron(A_BOLD);
+
+    string version;
+    time_t now = time(NULL);
+    struct tm *nowtm = localtime(&now);
+    char timeBuf[32];
+    strftime(timeBuf, sizeof(timeBuf), "%H:%M:%S", nowtm);
+    stats.getStat("version", version);
+
+    mvprintw(23, 0, "%-20.20s   %30s (q)uit (h)elp (%c)bsolute  ", host.c_str(), page_alt.c_str(), absolute ? 'A' : 'a');
+    attroff(COLOR_PAIR(colorPair::border));
+    attroff(A_BOLD);
+
+
+    if (page == MAIN_PAGE) {
+      main_stats_page(stats);
+    } else if (page == RESPONSE_PAGE) {
+      response_code_page(stats);
+    }
+
+    curs_set(0);
+    refresh();
+    timeout(sleep_time);
+
+    int x = getch();
+    switch (x) {
+    case 'h':
+      help(host, version);
+      break;
+    case 'q':
+      goto quit;
+    case 'm':
+      page = MAIN_PAGE;
+      page_alt = "(r)esponse";
+      break;
+    case 'r':
+      page = RESPONSE_PAGE;
+      page_alt = "(m)ain";
+      break;
+    case 'a':
+      absolute = stats.toggleAbsolute();
+    }
+    stats.getStats();
+    clear();
+  }
+
+quit:
+  endwin();
+
+  return 0;
+}
diff --git a/config.layout b/config.layout
new file mode 100644
index 00000000..678e6779
--- /dev/null
+++ b/config.layout
@@ -0,0 +1,279 @@
+##
+##  config.layout -- Pre-defined Installation Path Layouts
+##
+##  Licensed to the Apache Software Foundation (ASF) under one
+##  or more contributor license agreements.  See the NOTICE file
+##  distributed with this work for additional information
+##  regarding copyright ownership.  The ASF licenses this file
+##  to you under the Apache License, Version 2.0 (the
+##  "License"); you may not use this file except in compliance
+##  with the License.  You may obtain a copy of the License at
+##
+##      http://www.apache.org/licenses/LICENSE-2.0
+##
+##  Unless required by applicable law or agreed to in writing, software
+##  distributed under the License is distributed on an "AS IS" BASIS,
+##  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+##  See the License for the specific language governing permissions and
+##  limitations under the License.
+##
+##  Hints:
+##  - layouts can be loaded with configure's --enable-layout=ID option
+##  - when no --enable-layout option is given, the default layout is
+##    `Trafficserver'
+##  - a trailing plus character (`+') on paths is replaced with a
+##    `/<target>' suffix where <target> is currently hardcoded to
+##    'trafficserver'.
+##    (This may become a configurable parameter at some point.)
+##
+
+#   Classical TrafficServer path layout.
+<Layout TrafficServer>
+    prefix:        /usr/local
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/bin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec+
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    ${prefix}/etc+
+    datadir:       ${prefix}/share+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include
+    localstatedir: ${prefix}/var
+    runtimedir:    ${localstatedir}+
+    logdir:        ${localstatedir}/log+
+    cachedir:      ${localstatedir}+
+</Layout>
+
+#   Classical Apache path layout.
+<Layout Apache>
+    prefix:        /usr/local/trafficserver
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/bin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/modules
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    ${prefix}/conf
+    datadir:       ${prefix}/share
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include
+    localstatedir: ${prefix}
+    runtimedir:    ${localstatedir}/logs
+    logdir:        ${localstatedir}/logs
+    cachedir:      ${localstatedir}/cache
+</Layout>
+
+#   GNU standards conforming path layout.
+#   See FSF's GNU project `make-stds' document for details.
+<Layout GNU>
+    prefix:        /usr/local
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    ${prefix}/etc+
+    datadir:       ${prefix}/share+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include+
+    localstatedir: ${prefix}/var+
+    runtimedir:    ${localstatedir}/run
+    logdir:        ${localstatedir}/log
+    cachedir:      ${localstatedir}/cache
+</Layout>
+
+#   Mac OS X Server (Rhapsody)
+<Layout Mac OS X Server>
+    prefix:        /Local/Library/TrafficServer
+    exec_prefix:   /usr
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    /System/Library/TrafficServer/Modules
+    infodir:       ${exec_prefix}/share/info
+    mandir:        ${exec_prefix}/share/man
+    sysconfdir:    ${prefix}/Configuration
+    datadir:       ${prefix}/Share
+    docdir:        ${prefix}/Share/doc+
+    installbuilddir: /System/Library/TrafficServer/Build
+    includedir:    /System/Library/Frameworks/TrafficServer.framework/Versions/2.0/Headers
+    localstatedir: /var
+    runtimedir:    ${prefix}/Logs
+    logdir:        ${prefix}/Logs
+    cachedir:      ${prefix}/TrafficServerCache
+</Layout>
+
+#   Darwin/Mac OS Layout
+<Layout Darwin>
+    prefix:        /usr
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec+
+    infodir:       ${prefix}/share/info
+    mandir:        ${prefix}/share/man
+    datadir:       /Library/TrafficServer
+    docdir:        ${prefix}/share/doc+
+    sysconfdir:    /etc+
+    installbuilddir: ${prefix}/share/trafficserver/build
+    includedir:    ${prefix}/include+
+    localstatedir: /var+
+    runtimedir:    ${localstatedir}/run
+    logdir:        ${localstatedir}/log
+    cachedir:      ${localstatedir}/cache
+</Layout>
+
+#   According to the /opt filesystem conventions
+<Layout opt>
+    prefix:        /opt/trafficserver
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    /etc${prefix}
+    datadir:       ${prefix}/share
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include
+    localstatedir: /var${prefix}
+    runtimedir:    ${localstatedir}/run
+    logdir:        ${localstatedir}/logs
+    cachedir:      ${localstatedir}/cache
+</Layout>
+
+
+#   Solaris 8 Layout
+<Layout Solaris>
+    prefix:        /usr/trafficserver
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/bin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    /etc+
+    datadir:       /var+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include
+    localstatedir: ${prefix}
+    runtimedir:    /var/run+
+    logdir:        ${datadir}/logs
+    cachedir:      ${datadir}/cache
+</Layout>
+
+
+# Debian layout
+<Layout Debian>
+    prefix:        /usr
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib+
+    libexecdir:    ${exec_prefix}/lib/trafficserver/modules
+    infodir:       ${prefix}/share/info
+    mandir:        ${prefix}/share/man
+    sysconfdir:    /etc+
+    datadir:       /var/cache+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${prefix}/share/trafficserver/build
+    includedir:    ${prefix}/include
+    localstatedir: /var/run
+    runtimedir:    /var/run+
+    logdir:        /var/log+
+    cachedir: /var/cache+
+</Layout>
+
+#   Gentoo Linux TrafficServer path layout.
+<Layout Gentoo>
+    prefix:        /usr
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib+
+    libexecdir:    ${libdir}/plugins
+    infodir:       ${prefix}/share/info
+    mandir:        ${prefix}/share/man
+    sysconfdir:    /etc+
+    datadir:       ${prefix}/share+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include+
+    localstatedir: /var+
+    runtimedir:    /run+
+    logdir:        /var/log+
+    cachedir:      /var/cache+
+</Layout>
+
+#   OpenBSD path layout.
+<Layout OpenBSD>
+    prefix:        /usr/local
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/bin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec+
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    /etc+
+    datadir:       ${prefix}/share+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include
+    localstatedir: /var+
+    runtimedir:    /var/run+
+    logdir:        /var/log+
+    cachedir:      ${localstatedir}/cache
+</Layout>
+
+<Layout Yahoo>
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin64
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${exec_prefix}/libexec64+
+    infodir:       ${prefix}/info
+    mandir:        ${prefix}/man
+    sysconfdir:    ${prefix}/conf+
+    datadir:       ${prefix}/share+
+    installbuilddir: ${libdir}/trafficserver/build
+    includedir:    ${prefix}/include+
+    localstatedir: ${prefix}/var+
+    runtimedir:    ${prefix}/var/run+
+    logdir:        ${prefix}/logs+
+    cachedir:      ${datadir}
+</Layout>
+
+<Layout Arch>
+    prefix:        /usr
+    exec_prefix:   ${prefix}
+    bindir:        ${exec_prefix}/bin
+    sbindir:       ${exec_prefix}/sbin
+    libdir:        ${exec_prefix}/lib
+    libexecdir:    ${libdir}+
+    infodir:       ${prefix}/share/info
+    mandir:        ${prefix}/share/man
+    sysconfdir:    /etc+
+    datadir:       ${prefix}/share+
+    docdir:        ${prefix}/share/doc+
+    installbuilddir: ${datadir}/build
+    includedir:    ${prefix}/include
+    localstatedir: /run
+    runtimedir:    /run+
+    logdir:        /var/log+
+    cachedir:      /var/lib+
+</Layout>
diff --git a/configure b/configure
new file mode 100755
index 00000000..3fd29fb1
--- /dev/null
+++ b/configure
@@ -0,0 +1,30876 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for Apache Traffic Server 5.0.1.
+#
+# Report bugs to <dev@trafficserver.apache.org>.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1
+
+  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: dev@trafficserver.apache.org about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='Apache Traffic Server'
+PACKAGE_TARNAME='trafficserver'
+PACKAGE_VERSION='5.0.1'
+PACKAGE_STRING='Apache Traffic Server 5.0.1'
+PACKAGE_BUGREPORT='dev@trafficserver.apache.org'
+PACKAGE_URL='http://trafficserver.apache.org'
+
+ac_unique_file="proxy/Main.cc"
+ac_default_prefix=/usr/local/trafficserver
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIBOBJS
+TFW_PACKAGE_SUFFIX
+SHARED_LDFLAGS
+SHARED_CXXLINKFLAGS
+SHARED_CXXFLAGS
+SHARED_CFLAGS
+MGMT_DEFS
+iocore_include_dirs
+LIBTOOL_LINK_FLAGS
+EXTRA_CXX_LDFLAGS
+EXTRA_CC_LDFLAGS
+EXPAT_LDFLAGS
+API_DEFS
+BUILD_COLLAPSED_CONNECTION_PLUGIN_FALSE
+BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE
+BUILD_REMAP_STATS_PLUGIN_FALSE
+BUILD_REMAP_STATS_PLUGIN_TRUE
+has_in6_is_addr_unspecified
+gethostbyname_r_glibc2
+default_loopback_iface
+has_ip_tos
+has_so_mark
+ip_transparent
+use_tproxy
+netinet_ip_icmph
+netinet_iph
+readline_readlineh
+ifaddrsh
+net_ppp_defsh
+mathh
+sys_sysmacrosh
+sys_mounth
+stroptsh
+cpioh
+allocah
+valuesh
+libgenh
+floath
+waith
+malloch
+siginfoh
+ctypeh
+netdbh
+arpa_nameser_compath
+arpa_nameserh
+arpa_ineth
+sys_systeminfoh
+sys_sysinfoh
+sys_sysctlh
+sys_sockioh
+sys_byteorderh
+sys_ioctlh
+netinet_tcph
+netinet_in_systmh
+netinet_inh
+schedh
+sys_pseth
+sys_cpuseth
+sys_paramh
+pthread_nph
+endianh
+machine_endianh
+sys_eventh
+sys_epollh
+SPDYLAY_LIBS
+SPDYLAY_CFLAGS
+BUILD_HTTP_LOAD_FALSE
+BUILD_HTTP_LOAD_TRUE
+LUA_LDFLAGS
+TS_LUAJIT_LDFLAGS
+LIBREADLINE
+has_tcmalloc
+jemalloch
+BUILD_HEALTHCHECK_PLUGIN_FALSE
+BUILD_HEALTHCHECK_PLUGIN_TRUE
+BUILD_GEOIP_PLUGIN_FALSE
+BUILD_GEOIP_PLUGIN_TRUE
+GEOIP_LIBS
+use_hwloc
+HWLOC_LIBS
+HWLOC_CFLAGS
+PKG_CONFIG_LIBDIR
+PKG_CONFIG_PATH
+use_linux_native_aio
+use_posix_cap
+LIBCAP
+has_128bit_cas
+LIBDEMANGLE
+has_profiler
+LIBPROFILER
+use_port
+use_kqueue
+use_epoll
+has_backtrace
+execinfoh
+pcre_pcreh
+pcreh
+LIBPCRE
+PCRE_CONFIG
+expath
+LIBEXPAT
+LIBTCL
+TCL_STUB_LIB_SPEC
+TCL_STUB_LIB_FLAG
+TCL_STUB_LIB_FILE
+TCL_LIB_SPEC
+TCL_LIB_FLAG
+TCL_LIB_FILE
+TCL_SRC_DIR
+TCL_BIN_DIR
+TCL_PATCH_LEVEL
+TCL_VERSION
+lzmah
+LIBLZMA
+zlibh
+LIBZ
+use_tls_sni
+use_tls_eckey
+use_tls_alpn
+use_tls_npn
+OPENSSL_LDFLAGS
+OPENSSL_LIBS
+OPENSSL_INCLUDES
+PKG_CONFIG
+LIBCRYPT
+BOOST_LDFLAGS
+BOOST_CPPFLAGS
+BUILD_HAVE_BOOST_FALSE
+BUILD_HAVE_BOOST_TRUE
+BUILD_TSTOP_FALSE
+BUILD_TSTOP_TRUE
+CURL_LIBS
+CURL_CFLAGS
+CURL_CONFIG
+CURSES_LIB
+LIBRESOLV
+CCACHE
+ac_cv_sizeof_voidp
+FLEX_CFLAGS
+AM_CXXFLAGS
+AM_CFLAGS
+BUILD_HAVE_LIBCXX_FALSE
+BUILD_HAVE_LIBCXX_TRUE
+BUILD_PERL_LIB_FALSE
+BUILD_PERL_LIB_TRUE
+PERL
+DOXYGEN
+LEXLIB
+LEX_OUTPUT_ROOT
+LEX
+YACC
+BUILD_MANPAGES_FALSE
+BUILD_MANPAGES_TRUE
+TS_MAN8_MANPAGES
+TS_MAN5_MANPAGES
+TS_MAN3_MANPAGES
+TS_MAN1_MANPAGES
+SPHINXOPTS
+SPHINXBUILD
+pkgpyexecdir
+pyexecdir
+pkgpythondir
+pythondir
+PYTHON_PLATFORM
+PYTHON_EXEC_PREFIX
+PYTHON_PREFIX
+PYTHON_VERSION
+PYTHON
+ASCPP
+RM
+OTOOL64
+OTOOL
+LIPO
+NMEDIT
+DSYMUTIL
+MANIFEST_TOOL
+RANLIB
+DLLTOOL
+OBJDUMP
+NM
+ac_ct_DUMPBIN
+DUMPBIN
+LD
+FGREP
+LIBTOOL
+LN_S
+SED
+ac_ct_AR
+AR
+defer_accept
+EGREP
+GREP
+BUILD_HAVE_CXX_11_FALSE
+BUILD_HAVE_CXX_11_TRUE
+am__fastdepCCAS_FALSE
+am__fastdepCCAS_TRUE
+CCASDEPMODE
+CCASFLAGS
+CCAS
+CXXCPP
+CPP
+am__fastdepCXX_FALSE
+am__fastdepCXX_TRUE
+CXXDEPMODE
+ac_ct_CXX
+CXXFLAGS
+CXX
+am__fastdepCC_FALSE
+am__fastdepCC_TRUE
+CCDEPMODE
+am__nodep
+AMDEPBACKSLASH
+AMDEP_FALSE
+AMDEP_TRUE
+am__quote
+am__include
+DEPDIR
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+pkgdocdir
+pkgcachedir
+pkglogdir
+pkgruntimedir
+pkglocalstatedir
+pkgdatadir
+pkgsysconfdir
+pkglibexecdir
+pkglibdir
+pkgsbindir
+pkgbindir
+rel_docdir
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+cachedir
+rel_cachedir
+exp_cachedir
+logdir
+rel_logdir
+exp_logdir
+runtimedir
+rel_runtimedir
+exp_runtimedir
+rel_localstatedir
+exp_localstatedir
+rel_includedir
+exp_includedir
+installbuilddir
+rel_installbuilddir
+exp_installbuilddir
+rel_datadir
+exp_datadir
+rel_sysconfdir
+exp_sysconfdir
+rel_mandir
+exp_mandir
+rel_infodir
+exp_infodir
+rel_libexecdir
+exp_libexecdir
+rel_libdir
+exp_libdir
+rel_sbindir
+exp_sbindir
+rel_bindir
+exp_bindir
+rel_exec_prefix
+exp_exec_prefix
+rel_prefix
+exp_prefix
+BUILD_LUAJIT_FALSE
+BUILD_LUAJIT_TRUE
+ENABLE_CPPAPI_FALSE
+ENABLE_CPPAPI_TRUE
+BUILD_TEST_TOOLS_FALSE
+BUILD_TEST_TOOLS_TRUE
+BUILD_EXAMPLE_PLUGINS_FALSE
+BUILD_EXAMPLE_PLUGINS_TRUE
+BUILD_EXPERIMENTAL_PLUGINS_FALSE
+BUILD_EXPERIMENTAL_PLUGINS_TRUE
+max_threads_per_type
+max_event_threads
+max_host_name_len
+max_api_stats
+BUILD_SPDY_FALSE
+BUILD_SPDY_TRUE
+has_spdy
+use_reclaimable_freelist
+use_freelist
+BUILD_INTERIM_CACHE_FALSE
+BUILD_INTERIM_CACHE_TRUE
+has_interim_cache
+BUILD_WCCP_FALSE
+BUILD_WCCP_TRUE
+has_wccp
+enable_remote_cov_commit
+STATIC_LIBTS_FALSE
+STATIC_LIBTS_TRUE
+ink_with_modules_process
+ink_with_modules_local
+BUILD_TESTS_FALSE
+BUILD_TESTS_TRUE
+has_tests
+use_diags
+use_fast_sdk
+pkgsysgroup
+pkgsysuser
+build_group
+build_person
+build_machine
+HOST_GUESS
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+TS_VERSION_MICRO
+TS_VERSION_MINOR
+TS_VERSION_MAJOR
+TS_VERSION_NUMBER
+TS_VERSION_STRING
+TS_LIBTOOL_VERSION
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
+am__untar
+am__tar
+AMTAR
+am__leading_dot
+SET_MAKE
+AWK
+mkdir_p
+MKDIR_P
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
+MAKEINFO
+AUTOHEADER
+AUTOMAKE
+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_silent_rules
+enable_static
+enable_layout
+with_user
+with_group
+enable_debug
+enable_werror
+enable_fast_sdk
+enable_diags
+enable_tests
+enable_static_libts
+enable_remote_cov_commit
+enable_wccp
+enable_interim_cache
+with_profiler
+enable_eventfd
+enable_posix_cap
+enable_hwloc
+enable_ccache
+enable_tproxy
+enable_freelist
+enable_reclaimable_freelist
+enable_spdy
+with_max_api_stats
+with_max_host_name_len
+with_max_event_threads
+with_max_threads_per_type
+enable_experimental_plugins
+enable_example_plugins
+enable_test_tools
+enable_cppapi
+enable_luajit
+enable_dependency_tracking
+enable_shared
+with_pic
+enable_fast_install
+with_gnu_ld
+with_sysroot
+enable_libtool_lock
+with_architecture
+with_ncurses
+with_ncursesw
+with_curl_prefix
+with_curl_exec_prefix
+with_boost
+with_boost_libdir
+with_openssl
+with_zlib
+with_lzma
+with_tcl
+with_xml
+with_expat
+with_libxml2
+with_pcre
+enable_linux_native_aio
+with_jemalloc
+with_tcmalloc_lib
+with_tcmalloc
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CXX
+CXXFLAGS
+CCC
+CPP
+CXXCPP
+CCAS
+CCASFLAGS
+PYTHON
+SPHINXBUILD
+SPHINXOPTS
+DOXYGEN
+PERL
+CURSES_LIB
+CURL_CONFIG
+CURL_CFLAGS
+CURL_LIBS
+PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR
+HWLOC_CFLAGS
+HWLOC_LIBS
+SPDYLAY_CFLAGS
+SPDYLAY_LIBS'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures Apache Traffic Server 5.0.1 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/trafficserver]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of Apache Traffic Server 5.0.1:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --enable-static[=PKGS]  build static libraries [default=no]
+  --enable-layout=LAYOUT  Enable LAYOUT specified inside config.layout file
+                          (defaults to TrafficServer)
+  --enable-debug          turn on debugging
+  --enable-werror         turn compiler warnings into errors [default=auto]
+  --enable-fast-sdk       enable fast SDK APIs (no input parameter sanity
+                          checks)
+  --disable-diags         turn off diags
+  --disable-tests         turn off regression tests
+  --enable-static-libts   build some static libts (dev only)
+  --enable-remote-cov-commit=HOST
+                          commit cov defects to remote host [HOST=localhost]
+  --enable-wccp           enable WCCP v2
+  --enable-interim-cache  enable interim cache
+  --disable-eventfd       turn off eventfd and use pipes
+  --disable-posix-cap     Use user id switching instead of POSIX capabilities
+  --disable-hwloc         Don't use the hwloc library
+  --enable-ccache         Enable ccache (for developers)
+  --enable-tproxy[=ARG]   Use TPROXY to enable connection transparency. 'auto'
+                          or omitted for local system default, 'no' to
+                          disable, 'force' to use built in default, number to
+                          use as IP_TRANSPARENT sockopt. [default=auto]
+
+  --disable-freelist      turn off freelist and use allocators
+  --enable-reclaimable-freelist
+                          enable reclaimable freelist support (effective only
+                          when freelist is enabled)
+  --enable-spdy           turn on spdy protocol
+  --enable-experimental-plugins
+                          build experimental plugins
+  --enable-example-plugins
+                          install example plugins
+  --enable-test-tools     install testing tools
+  --enable-cppapi         Build the c++ api
+  --disable-luajit        turn off LuaJIT
+  --enable-dependency-tracking
+                          do not reject slow dependency extractors
+  --disable-dependency-tracking
+                          speeds up one-time build
+  --enable-shared[=PKGS]  build shared libraries [default=yes]
+  --enable-fast-install[=PKGS]
+                          optimize for fast installation [default=yes]
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --enable-linux-native-aio
+                          enable native Linux AIO support [default=no]
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-user             specify the system user [default=nobody]
+  --with-group            specify the system group [default=nobody]
+  --with-profiler         enable support for profiler [default=no]
+  --with-max-api-stats    max number of plugin stats [default=512]
+  --with-max-host-name-len
+                          max host name length [default=256]
+  --with-max-event-threads
+                          max number of event threads [default=4096]
+  --with-max-threads-per-type
+                          max number of threads per event type [default=3072]
+  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
+                          both]
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-sysroot=DIR Search for dependent libraries within DIR
+                        (or the compiler's sysroot if not specified).
+  --with-architecture=ARCH
+                          use a specific CPU architecture
+  --with-ncurses          force the use of Ncurses or NcursesW
+  --without-ncursesw      do not use NcursesW (wide character support)
+  --with-curl-prefix=PREFIX
+                          Prefix where curl is installed (optional)
+  --with-curl-exec-prefix=EPREFIX
+                          Exec prefix where curl is installed (optional)
+  --with-boost[=ARG]      use Boost library from a standard location
+                          (ARG=yes), from the specified location (ARG=<path>),
+                          or disable it (ARG=no) [ARG=yes]
+  --with-boost-libdir=LIB_DIR
+                          Force given directory for boost libraries. Note that
+                          this will override library path detection, so use
+                          this parameter only if default library detection
+                          fails and you know exactly where your boost
+                          libraries are located.
+  --with-openssl=DIR      root of the OpenSSL directory
+  --with-zlib=DIR         use a specific zlib library
+  --with-lzma=DIR         use a specific lzma library
+  --with-tcl              directory containing tcl configuration
+                          (tclConfig.sh)
+  --with-xml=(expat|libxml2)
+                          select XML parser
+  --with-expat=DIR        use a specific Expat library
+  --with-libxml2=DIR      use a specific libxml2 library
+  --with-pcre=DIR         use a specific pcre library
+  --with-jemalloc=DIR     use a specific jemalloc library
+  --with-tcmalloc-lib     specify the tcmalloc library to use
+                          [default=tcmalloc]
+  --with-tcmalloc=DIR     use the tcmalloc library
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  CPP         C preprocessor
+  CXXCPP      C++ preprocessor
+  CCAS        assembler compiler command (defaults to CC)
+  CCASFLAGS   assembler compiler flags (defaults to CFLAGS)
+  PYTHON      the Python interpreter
+  SPHINXBUILD the sphinx-build documentation generator
+  SPHINXOPTS  additional sphinx-build options
+  DOXYGEN     full path of Doxygen executable
+  PERL        full path of Perl executable
+  CURSES_LIB  linker library for Curses, e.g. -lcurses
+  CURL_CONFIG config script used for curl
+  CURL_CFLAGS CFLAGS used for curl
+  CURL_LIBS   LIBS used for curl
+  PKG_CONFIG  path to pkg-config utility
+  PKG_CONFIG_PATH
+              directories to add to pkg-config's search path
+  PKG_CONFIG_LIBDIR
+              path overriding pkg-config's built-in search path
+  HWLOC_CFLAGS
+              C compiler flags for HWLOC, overriding pkg-config
+  HWLOC_LIBS  linker flags for HWLOC, overriding pkg-config
+  SPDYLAY_CFLAGS
+              C compiler flags for SPDYLAY, overriding pkg-config
+  SPDYLAY_LIBS
+              linker flags for SPDYLAY, overriding pkg-config
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <dev@trafficserver.apache.org>.
+Apache Traffic Server home page: <http://trafficserver.apache.org>.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+Apache Traffic Server configure 5.0.1
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_cpp
+
+# ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_cxx_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( $as_echo "## ------------------------------------------- ##
+## Report this to dev@trafficserver.apache.org ##
+## ------------------------------------------- ##"
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_cxx_check_header_mongrel
+
+# ac_fn_cxx_try_run LINENO
+# ------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_cxx_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_run
+
+# ac_fn_cxx_check_header_compile LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_cxx_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_cxx_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_link
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
+# --------------------------------------------
+# Tries to find the compile-time value of EXPR in a program that includes
+# INCLUDES, setting VAR accordingly. Returns whether the value could be
+# computed
+ac_fn_c_compute_int ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if test "$cross_compiling" = yes; then
+    # Depending upon the size, compute the lo and hi bounds.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) >= 0)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) <= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid; break
+else
+  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
+			if test $ac_lo -le $ac_mid; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) < 0)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) >= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=$ac_mid; break
+else
+  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
+			if test $ac_mid -le $ac_hi; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  ac_lo= ac_hi=
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+# Binary search between lo and hi bounds.
+while test "x$ac_lo" != "x$ac_hi"; do
+  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) <= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid
+else
+  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+case $ac_lo in #((
+?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
+'') ac_retval=1 ;;
+esac
+  else
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+static long int longval () { return $2; }
+static unsigned long int ulongval () { return $2; }
+#include <stdio.h>
+#include <stdlib.h>
+int
+main ()
+{
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    return 1;
+  if (($2) < 0)
+    {
+      long int i = longval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%ld", i);
+    }
+  else
+    {
+      unsigned long int i = ulongval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%lu", i);
+    }
+  /* Do not output a trailing newline, as this causes \r\n confusion
+     on some platforms.  */
+  return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
+else
+  ac_retval=1
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f conftest.val
+
+  fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_compute_int
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( $as_echo "## ------------------------------------------- ##
+## Report this to dev@trafficserver.apache.org ##
+## ------------------------------------------- ##"
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_cxx_check_decl LINENO SYMBOL VAR INCLUDES
+# -----------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_cxx_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_cxx_check_decl
+
+# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
+# ----------------------------------------------------
+# Tries to find if the field MEMBER exists in type AGGR, after including
+# INCLUDES, setting cache variable VAR accordingly.
+ac_fn_c_check_member ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
+$as_echo_n "checking for $2.$3... " >&6; }
+if eval \${$4+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (sizeof ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  eval "$4=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$4
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_member
+
+# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+# -------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_c_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_type
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by Apache Traffic Server $as_me 5.0.1, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+ac_aux_dir=
+for ac_dir in build/aux "$srcdir"/build/aux; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in build/aux \"$srcdir\"/build/aux" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+
+
+am__api_version='1.13'
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=1;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='trafficserver'
+ VERSION='5.0.1'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
+
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar plaintar pax cpio none'
+
+# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+      # There is notably a 21 bits limit for the UID and the GID.  In fact,
+      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+      # and bug#13588).
+      am_max_uid=2097151 # 2^21 - 1
+      am_max_gid=$am_max_uid
+      # The $UID and $GID variables are not portable, so we need to resort
+      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
+      # below are definitely unexpected, so allow the users to see them
+      # (that is, avoid stderr redirection).
+      am_uid=`id -u || echo unknown`
+      am_gid=`id -g || echo unknown`
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether UID '$am_uid' is supported by ustar format" >&5
+$as_echo_n "checking whether UID '$am_uid' is supported by ustar format... " >&6; }
+      if test $am_uid -le $am_max_uid; then
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+      else
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+         _am_tools=none
+      fi
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether GID '$am_gid' is supported by ustar format" >&5
+$as_echo_n "checking whether GID '$am_gid' is supported by ustar format... " >&6; }
+      if test $am_gid -le $am_max_gid; then
+         { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+      else
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+        _am_tools=none
+      fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to create a ustar tar archive" >&5
+$as_echo_n "checking how to create a ustar tar archive... " >&6; }
+
+  # Go ahead even if we have the value already cached.  We do so because we
+  # need to set the values for the 'am__tar' and 'am__untar' variables.
+  _am_tools=${am_cv_prog_tar_ustar-$_am_tools}
+
+  for _am_tool in $_am_tools; do
+    case $_am_tool in
+    gnutar)
+      for _am_tar in tar gnutar gtar; do
+        { echo "$as_me:$LINENO: $_am_tar --version" >&5
+   ($_am_tar --version) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } && break
+      done
+      am__tar="$_am_tar --format=ustar -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=ustar -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
+    plaintar)
+      # Must skip GNU tar: if it does not support --format= it doesn't create
+      # ustar tarball either.
+      (tar --version) >/dev/null 2>&1 && continue
+      am__tar='tar chf - "$$tardir"'
+      am__tar_='tar chf - "$tardir"'
+      am__untar='tar xf -'
+      ;;
+    pax)
+      am__tar='pax -L -x ustar -w "$$tardir"'
+      am__tar_='pax -L -x ustar -w "$tardir"'
+      am__untar='pax -r'
+      ;;
+    cpio)
+      am__tar='find "$$tardir" -print | cpio -o -H ustar -L'
+      am__tar_='find "$tardir" -print | cpio -o -H ustar -L'
+      am__untar='cpio -i -H ustar -d'
+      ;;
+    none)
+      am__tar=false
+      am__tar_=false
+      am__untar=false
+      ;;
+    esac
+
+    # If the value was cached, stop now.  We just wanted to have am__tar
+    # and am__untar set.
+    test -n "${am_cv_prog_tar_ustar}" && break
+
+    # tar/untar a dummy directory, and stop if the command works.
+    rm -rf conftest.dir
+    mkdir conftest.dir
+    echo GrepMe > conftest.dir/file
+    { echo "$as_me:$LINENO: tardir=conftest.dir && eval $am__tar_ >conftest.tar" >&5
+   (tardir=conftest.dir && eval $am__tar_ >conftest.tar) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+    rm -rf conftest.dir
+    if test -s conftest.tar; then
+      { echo "$as_me:$LINENO: $am__untar <conftest.tar" >&5
+   ($am__untar <conftest.tar) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+      { echo "$as_me:$LINENO: cat conftest.dir/file" >&5
+   (cat conftest.dir/file) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+    fi
+  done
+  rm -rf conftest.dir
+
+  if ${am_cv_prog_tar_ustar+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  am_cv_prog_tar_ustar=$_am_tool
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_tar_ustar" >&5
+$as_echo "$am_cv_prog_tar_ustar" >&6; }
+
+
+
+
+
+
+ac_config_headers="$ac_config_headers lib/ts/ink_autoconf.h"
+
+
+# Configure with --disable-silent-rules to get verbose output. For more info, see
+# http://www.gnu.org/software/automake/manual/html_node/Automake-silent_002drules-Option.html
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=0;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+
+# Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then :
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_static=no
+fi
+
+
+
+
+
+
+
+
+
+
+# Libtool versioning uses different conventions on different
+# platforms.  At least on FreeBSD, libtool uses an overly complex
+# convention that attempts to solve problems that most people just
+# don't have and which just causes confusion for most end users.
+#
+TS_VERSION_MAJOR=$((5000001 / 1000000 ))
+TS_VERSION_MINOR=$(((5000001 / 1000) % 1000 ))
+TS_VERSION_MICRO=$((5000001 % 1000 ))
+TS_LIBTOOL_MAJOR=`echo $((${TS_VERSION_MAJOR} + ${TS_VERSION_MINOR}))`
+TS_LIBTOOL_VERSION=$TS_LIBTOOL_MAJOR:$TS_VERSION_MICRO:$TS_VERSION_MINOR
+TS_VERSION_STRING=5.0.1
+TS_VERSION_NUMBER=5000001
+
+#
+# Substitute the above version numbers into the various files below.
+#
+
+
+
+
+
+
+
+
+
+
+
+#
+# Generate ./config.nice for reproducing runs of configure
+#
+
+  rm -f config.nice
+  cat >config.nice<<EOF
+#! /bin/sh
+#
+# Created by configure
+
+EOF
+  if test -n "$CC"; then
+    echo "CC=\"$CC\"; export CC" >> config.nice
+  fi
+  if test -n "$CXX"; then
+    echo "CXX=\"$CXX\"; export CXX" >> config.nice
+  fi
+  if test -n "$CFLAGS"; then
+    echo "CFLAGS=\"$CFLAGS\"; export CFLAGS" >> config.nice
+  fi
+  if test -n "$CXXFLAGS"; then
+    echo "CXXFLAGS=\"$CXXFLAGS\"; export CXXFLAGS" >> config.nice
+  fi
+  if test -n "$CPPFLAGS"; then
+    echo "CPPFLAGS=\"$CPPFLAGS\"; export CPPFLAGS" >> config.nice
+  fi
+  if test -n "$LDFLAGS"; then
+    echo "LDFLAGS=\"$LDFLAGS\"; export LDFLAGS" >> config.nice
+  fi
+  if test -n "$LTFLAGS"; then
+    echo "LTFLAGS=\"$LTFLAGS\"; export LTFLAGS" >> config.nice
+  fi
+  if test -n "$LIBS"; then
+    echo "LIBS=\"$LIBS\"; export LIBS" >> config.nice
+  fi
+  if test -n "$INCLUDES"; then
+    echo "INCLUDES=\"$INCLUDES\"; export INCLUDES" >> config.nice
+  fi
+  if test -n "$NOTEST_CFLAGS"; then
+    echo "NOTEST_CFLAGS=\"$NOTEST_CFLAGS\"; export NOTEST_CFLAGS" >> config.nice
+  fi
+  if test -n "$NOTEST_CXXFLAGS"; then
+    echo "NOTEST_CXXFLAGS=\"$NOTEST_CXXFLAGS\"; export NOTEST_CXXFLAGS" >> config.nice
+  fi
+  if test -n "$NOTEST_CPPFLAGS"; then
+    echo "NOTEST_CPPFLAGS=\"$NOTEST_CPPFLAGS\"; export NOTEST_CPPFLAGS" >> config.nice
+  fi
+  if test -n "$NOTEST_LDFLAGS"; then
+    echo "NOTEST_LDFLAGS=\"$NOTEST_LDFLAGS\"; export NOTEST_LDFLAGS" >> config.nice
+  fi
+  if test -n "$NOTEST_LIBS"; then
+    echo "NOTEST_LIBS=\"$NOTEST_LIBS\"; export NOTEST_LIBS" >> config.nice
+  fi
+
+  # Retrieve command-line arguments.
+  eval "set x $0 $ac_configure_args"
+  shift
+
+  for arg
+  do
+
+ats_last=
+ats_cur="$arg"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+arg="${ats_cur}"
+
+    echo "\"$arg\" \\" >> config.nice
+  done
+  echo '"$@"' >> config.nice
+  chmod +x config.nice
+
+
+# XXX we can't just use AC_PREFIX_DEFAULT because that isn't subbed in
+# by configure until it is too late.  Is that how it should be or not?
+# Something seems broken here.
+
+
+# Get the layout here, so we can pass the required variables to Trafficserver
+
+# Check whether --enable-layout was given.
+if test "${enable_layout+set}" = set; then :
+  enableval=$enable_layout;
+  LAYOUT=$enableval
+
+fi
+
+
+if test -z "$LAYOUT"; then
+  LAYOUT="TrafficServer"
+fi
+
+  if test ! -f $srcdir/config.layout; then
+    echo "** Error: Layout file $srcdir/config.layout not found"
+    echo "** Error: Cannot use undefined layout '$LAYOUT'"
+    exit 1
+  fi
+  # Catch layout names including a slash which will otherwise
+  # confuse the heck out of the sed script.
+  case $LAYOUT in
+  */*)
+    echo "** Error: $LAYOUT is not a valid layout name"
+    exit 1 ;;
+  esac
+  pldconf=./config.pld
+
+  sed -e "1s/[ 	]*<[lL]ayout[ 	]*$LAYOUT[ 	]*>[ 	]*//;1t" \
+      -e "1,/[ 	]*<[lL]ayout[ 	]*$LAYOUT[ 	]*>[ 	]*/d" \
+      -e '/[ 	]*<\/Layout>[ 	]*/,$d' \
+      -e "s/^[ 	]*//g" \
+      -e "s/:[ 	]*/=\'/g" \
+      -e "s/[ 	]*$/'/g" \
+      $srcdir/config.layout > $pldconf
+  layout_name=$LAYOUT
+  if test ! -s $pldconf; then
+    echo "** Error: unable to find layout $layout_name"
+    exit 1
+  fi
+  . $pldconf
+  rm $pldconf
+  for var in prefix exec_prefix bindir sbindir libexecdir mandir infodir \
+             sysconfdir datadir includedir localstatedir runtimedir \
+             logdir libdir installbuilddir libsuffix cachedir docdir; do
+    eval "val=\"\$$var\""
+    case $val in
+      *+)
+        val=`echo $val | sed -e 's;\+$;;'`
+        eval "$var=\"\$val\""
+        autosuffix=yes
+        ;;
+      *)
+        autosuffix=no
+        ;;
+    esac
+    val=`echo $val | sed -e 's:\(.\)/*$:\1:'`
+    val=`echo $val | sed -e 's:[\$]\([a-z_]*\):$\1:g'`
+    if test "$autosuffix" = "yes"; then
+      if echo $val | grep -i '/trafficserver$' >/dev/null; then
+        addtarget=no
+      else
+        addtarget=yes
+      fi
+      if test "$addtarget" = "yes"; then
+        val="$val/trafficserver"
+      fi
+    fi
+    eval "$var='$val'"
+  done
+  for var in bindir sbindir libexecdir mandir infodir sysconfdir \
+             datadir localstatedir runtimedir logdir libdir cachedir docdir; do
+    eval "val=\"\$$var\""
+    case $val in
+      *+)
+        val=`echo $val | sed -e 's;\+$;;'`
+        eval "$var=\"\$val\""
+        autosuffix=yes
+        ;;
+      *)
+        autosuffix=no
+        ;;
+    esac
+    org_val=
+    exp_val="$val"
+    while test "x$exp_val" != "x$org_val";
+    do
+      org_val="$exp_val"
+      exp_val="`eval \"echo $exp_val\"`"
+    done
+    if echo $exp_val | grep -i '/trafficserver$' >/dev/null; then
+      addtarget=no
+    else
+      addtarget=yes
+    fi
+    if test "$addsuffix" = "yes" -a "$addtarget" = "yes"; then
+      val="$val/trafficserver"
+    fi
+    var="pkg$var"
+    eval "$var='$val'"
+  done
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for chosen layout" >&5
+$as_echo_n "checking for chosen layout... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $layout_name" >&5
+$as_echo "$layout_name" >&6; }
+
+
+# Reparse the configure arguments so we can override the layout.
+
+ac_prev=
+# Retrieve the command-line arguments.  The eval is needed because
+# the arguments are quoted to preserve accuracy.
+eval "set x $ac_configure_args"
+shift
+for ac_option
+do
+# If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`
+
+  case $ac_option in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir="$ac_optarg"
+    pkgbindir="$ac_optarg" ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir="$ac_optarg"
+    pkgdatadir="$ac_optarg" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix="$ac_optarg" ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir="$ac_optarg" ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir="$ac_optarg" ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir="$ac_optarg"
+    pkglibdir="$ac_optarg" ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir="$ac_optarg"
+    pkglibexecdir="$ac_optarg" ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir="$ac_optarg"
+    pkglocalstatedir="$ac_optarg" ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir="$ac_optarg" ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix="$ac_optarg" ;;
+
+  -runtimedir | --runtimedir | --runtimedi | --runtimed | --runtime | --runtim \
+  | --runti | --runt | --run | --ru | --r)
+    ac_prev=runtimedir ;;
+  -runtimedir=* | --runtimedir=* | --runtimedi=* | --runtimed=* | --runtime=* \
+  | --runtim=* | --runti=* | --runt=* | --run=* | --ru=* | --r=*)
+    ac_prev=runtimedir ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir="$ac_optarg"
+    pkgsbindir="$ac_optarg" ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir="$ac_optarg" ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir="$ac_optarg"
+    pkgsysconfdir="$ac_optarg" ;;
+
+  esac
+done
+
+# Be sure to have absolute paths.
+for ac_var in exec_prefix prefix
+do
+  eval ac_val=$`echo $ac_var`
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
+    *)  as_fn_error $? "expected an absolute path for --$ac_var: $ac_val" "$LINENO" 5;;
+  esac
+done
+
+
+
+#
+# Host detection
+#
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+HOST_GUESS="$host"
+
+
+#
+# Build environment
+#
+build_person="`id -nu`"
+build_group="`id -ng`"
+build_machine="`uname -n`"
+
+
+
+
+
+# Check whether --with-user was given.
+if test "${with_user+set}" = set; then :
+  withval=$with_user;
+  with_user="$withval"
+
+else
+
+  with_user="nobody"
+
+
+fi
+
+
+default_group="`id -ng $with_user`"
+
+# Check whether --with-group was given.
+if test "${with_group+set}" = set; then :
+  withval=$with_group;
+  with_group="$withval"
+
+else
+
+  with_group=${default_group:-nobody}
+
+
+fi
+
+pkgsysuser=$with_user
+
+pkgsysgroup=$with_group
+
+
+# -----------------------------------------------------------------------------
+# 2. SITE CONFIGURATION
+
+#
+# Debug
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable debugging" >&5
+$as_echo_n "checking whether to enable debugging... " >&6; }
+# Check whether --enable-debug was given.
+if test "${enable_debug+set}" = set; then :
+  enableval=$enable_debug;
+else
+  enable_debug=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_debug" >&5
+$as_echo "$enable_debug" >&6; }
+
+#
+# Enable -Werror. We want this enabled by default for developers, but disabled by default
+# for end users (because we don't want released versions to suffer from compiler warning hell).
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable -Werror" >&5
+$as_echo_n "checking whether to enable -Werror... " >&6; }
+# Check whether --enable-werror was given.
+if test "${enable_werror+set}" = set; then :
+  enableval=$enable_werror;
+else
+
+    case $TS_VERSION_STRING in
+      *dev) enable_werror=yes ;;
+      *) enable_werror=no ;;
+    esac
+
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_werror" >&5
+$as_echo "$enable_werror" >&6; }
+
+
+#
+# Fast SDK APIs, this disables the parameter checks (assert)
+# on all APIs.
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable fast SDK APIs" >&5
+$as_echo_n "checking whether to enable fast SDK APIs... " >&6; }
+# Check whether --enable-fast-sdk was given.
+if test "${enable_fast_sdk+set}" = set; then :
+  enableval=$enable_fast_sdk;
+else
+  enable_fast_sdk=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_fast_sdk" >&5
+$as_echo "$enable_fast_sdk" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="fast_sdk"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+#
+# Diags
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable diags" >&5
+$as_echo_n "checking whether to enable diags... " >&6; }
+# Check whether --enable-diags was given.
+if test "${enable_diags+set}" = set; then :
+  enableval=$enable_diags;
+else
+  enable_diags=yes
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_diags" >&5
+$as_echo "$enable_diags" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="diags"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+#
+# Build regression tests?
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable regression tests" >&5
+$as_echo_n "checking whether to enable regression tests... " >&6; }
+# Check whether --enable-tests was given.
+if test "${enable_tests+set}" = set; then :
+  enableval=$enable_tests;
+else
+  enable_tests=yes
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_tests" >&5
+$as_echo "$enable_tests" >&6; }
+
+  tsl_prefix="has"
+  tsl_stem="tests"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+ if test 0 -ne $has_tests; then
+  BUILD_TESTS_TRUE=
+  BUILD_TESTS_FALSE='#'
+else
+  BUILD_TESTS_TRUE='#'
+  BUILD_TESTS_FALSE=
+fi
+
+
+ink_with_modules_local="-DLOCAL_MANAGER"
+
+ink_with_modules_process="-DPROCESS_MANAGER"
+
+
+#
+# Force some static linkage (for testing / development only)
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build some static libts (dev only)" >&5
+$as_echo_n "checking whether to build some static libts (dev only)... " >&6; }
+# Check whether --enable-static-libts was given.
+if test "${enable_static_libts+set}" = set; then :
+  enableval=$enable_static_libts;
+else
+  enable_static_libts=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static_libts" >&5
+$as_echo "$enable_static_libts" >&6; }
+
+  tsl_prefix="has"
+  tsl_stem="static_libts"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+ if test 0 -ne $has_static_libts; then
+  STATIC_LIBTS_TRUE=
+  STATIC_LIBTS_FALSE='#'
+else
+  STATIC_LIBTS_TRUE='#'
+  STATIC_LIBTS_FALSE=
+fi
+
+
+#
+# Remote Coverity Prevent commit
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to commit cov defects to remote host" >&5
+$as_echo_n "checking whether to commit cov defects to remote host... " >&6; }
+# Check whether --enable-remote-cov-commit was given.
+if test "${enable_remote_cov_commit+set}" = set; then :
+  enableval=$enable_remote_cov_commit;
+else
+  enable_remote_cov_commit=localhost
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_remote_cov_commit" >&5
+$as_echo "$enable_remote_cov_commit" >&6; }
+
+
+#
+# WCCP
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable WCCP v2 support" >&5
+$as_echo_n "checking whether to enable WCCP v2 support... " >&6; }
+# Check whether --enable-wccp was given.
+if test "${enable_wccp+set}" = set; then :
+  enableval=$enable_wccp;
+else
+  enable_wccp=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_wccp" >&5
+$as_echo "$enable_wccp" >&6; }
+
+  tsl_prefix="has"
+  tsl_stem="wccp"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+ if test 0 -ne $has_wccp; then
+  BUILD_WCCP_TRUE=
+  BUILD_WCCP_FALSE='#'
+else
+  BUILD_WCCP_TRUE='#'
+  BUILD_WCCP_FALSE=
+fi
+
+
+#
+# InterimCache
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable interim cache support" >&5
+$as_echo_n "checking whether to enable interim cache support... " >&6; }
+# Check whether --enable-interim_cache was given.
+if test "${enable_interim_cache+set}" = set; then :
+  enableval=$enable_interim_cache;
+else
+  enable_interim_cache=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_interim_cache" >&5
+$as_echo "$enable_interim_cache" >&6; }
+
+  tsl_prefix="has"
+  tsl_stem="interim_cache"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+ if test 0 -ne $has_interim_cache; then
+  BUILD_INTERIM_CACHE_TRUE=
+  BUILD_INTERIM_CACHE_FALSE='#'
+else
+  BUILD_INTERIM_CACHE_TRUE='#'
+  BUILD_INTERIM_CACHE_FALSE=
+fi
+
+
+# Google profiler
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable profiler" >&5
+$as_echo_n "checking whether to enable profiler... " >&6; }
+
+# Check whether --with-profiler was given.
+if test "${with_profiler+set}" = set; then :
+  withval=$with_profiler; with_profiler=$withval
+else
+  with_profiler=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_profiler" >&5
+$as_echo "$with_profiler" >&6; }
+
+#
+# use eventfd() or pipes
+# Found that ec2 is using an older kernel causing eventfd errors.
+# Disable eventfd when using ATS on EC2 Fedora.
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable eventfd()" >&5
+$as_echo_n "checking whether to enable eventfd()... " >&6; }
+# Check whether --enable-eventfd was given.
+if test "${enable_eventfd+set}" = set; then :
+  enableval=$enable_eventfd;
+else
+  enable_eventfd="yes"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_eventfd" >&5
+$as_echo "$enable_eventfd" >&6; }
+
+#
+# use POSIX capabilities instead of user ID switching.
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use POSIX capabilities" >&5
+$as_echo_n "checking whether to use POSIX capabilities... " >&6; }
+# Check whether --enable-posix-cap was given.
+if test "${enable_posix_cap+set}" = set; then :
+  enableval=$enable_posix_cap;
+else
+  enable_posix_cap="auto"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_posix_cap" >&5
+$as_echo "$enable_posix_cap" >&6; }
+
+#
+# use hwloc library when possible (can be disabled)
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use hwloc library" >&5
+$as_echo_n "checking whether to use hwloc library... " >&6; }
+# Check whether --enable-hwloc was given.
+if test "${enable_hwloc+set}" = set; then :
+  enableval=$enable_hwloc;
+else
+  enable_hwloc="yes"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_hwloc" >&5
+$as_echo "$enable_hwloc" >&6; }
+
+#
+# Enble ccache explicitly (it's disabled by default, because of build problems in some cases)
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable ccache" >&5
+$as_echo_n "checking whether to enable ccache... " >&6; }
+# Check whether --enable-ccache was given.
+if test "${enable_ccache+set}" = set; then :
+  enableval=$enable_ccache;
+else
+  enable_ccache="no"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_ccache" >&5
+$as_echo "$enable_ccache" >&6; }
+
+#
+# Use TPROXY for connection transparency.
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable TPROXY based transparency" >&5
+$as_echo_n "checking whether to enable TPROXY based transparency... " >&6; }
+# Check whether --enable-tproxy was given.
+if test "${enable_tproxy+set}" = set; then :
+  enableval=$enable_tproxy;
+else
+  enable_tproxy="auto"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_tproxy" >&5
+$as_echo "$enable_tproxy" >&6; }
+
+#
+# Disable our freelist implementation, reverting it to whatever
+# allocator (malloc, tcmalloc or jemalloc) that is in use. This is
+# useful for debugging.
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to disable freelist" >&5
+$as_echo_n "checking whether to disable freelist... " >&6; }
+# Check whether --enable-freelist was given.
+if test "${enable_freelist+set}" = set; then :
+  enableval=$enable_freelist;
+else
+  enable_freelist="yes"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_freelist" >&5
+$as_echo "$enable_freelist" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="freelist"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+#
+# The original InkFreeList memory pool could not reclaim itself
+# automatically. We can use '--enable-reclaimable-freelist' option
+# to enable the reclaiming feature. This option is effective only
+# when freelist is enable.
+#
+if test "x${enable_freelist}" = "xyes"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable reclaimable freelist" >&5
+$as_echo_n "checking whether to enable reclaimable freelist... " >&6; }
+  # Check whether --enable-reclaimable-freelist was given.
+if test "${enable_reclaimable_freelist+set}" = set; then :
+  enableval=$enable_reclaimable_freelist;
+else
+  enable_reclaimable_freelist="no"
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_reclaimable_freelist" >&5
+$as_echo "$enable_reclaimable_freelist" >&6; }
+else
+  enable_reclaimable_freelist="no"
+fi
+
+  tsl_prefix="use"
+  tsl_stem="reclaimable_freelist"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+#
+# Options for SPDY
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable spdy" >&5
+$as_echo_n "checking whether to enable spdy... " >&6; }
+# Check whether --enable-spdy was given.
+if test "${enable_spdy+set}" = set; then :
+  enableval=$enable_spdy;
+else
+  enable_spdy="no"
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_spdy" >&5
+$as_echo "$enable_spdy" >&6; }
+
+  tsl_prefix="has"
+  tsl_stem="spdy"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+ if test 0 -ne $has_spdy; then
+  BUILD_SPDY_TRUE=
+  BUILD_SPDY_FALSE='#'
+else
+  BUILD_SPDY_TRUE='#'
+  BUILD_SPDY_FALSE=
+fi
+
+
+#
+# Configure how many stats to allocate for plugins. Default is 512.
+#
+
+# Check whether --with-max-api-stats was given.
+if test "${with_max_api_stats+set}" = set; then :
+  withval=$with_max_api_stats; max_api_stats=$withval
+else
+  max_api_stats=512
+
+fi
+
+
+
+#
+# Max host name length that we deal with in URLs.
+#
+
+# Check whether --with-max-host-name-len was given.
+if test "${with_max_host_name_len+set}" = set; then :
+  withval=$with_max_host_name_len; max_host_name_len=$withval
+else
+  max_host_name_len=256
+
+fi
+
+
+
+#
+# EventProcessor thread configurations
+#
+
+
+# Check whether --with-max-event-threads was given.
+if test "${with_max_event_threads+set}" = set; then :
+  withval=$with_max_event_threads; max_event_threads=$withval
+else
+  max_event_threads=4096
+
+fi
+
+
+
+
+# Check whether --with-max-threads-per-type was given.
+if test "${with_max_threads_per_type+set}" = set; then :
+  withval=$with_max_threads_per_type; max_threads_per_type=$withval
+else
+  max_threads_per_type=3072
+
+fi
+
+
+
+#
+# Experimental plugins
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable experimental plugins" >&5
+$as_echo_n "checking whether to enable experimental plugins... " >&6; }
+# Check whether --enable-experimental-plugins was given.
+if test "${enable_experimental_plugins+set}" = set; then :
+  enableval=$enable_experimental_plugins;
+else
+  enable_experimental_plugins=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_experimental_plugins" >&5
+$as_echo "$enable_experimental_plugins" >&6; }
+ if  test "x${enable_experimental_plugins}" = "xyes" ; then
+  BUILD_EXPERIMENTAL_PLUGINS_TRUE=
+  BUILD_EXPERIMENTAL_PLUGINS_FALSE='#'
+else
+  BUILD_EXPERIMENTAL_PLUGINS_TRUE='#'
+  BUILD_EXPERIMENTAL_PLUGINS_FALSE=
+fi
+
+
+#
+# Example plugins. The example plugins are always built, but not always installed. Installing
+# them is useful for QA, but not useful for most users, so we default this to disabled.
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to install example plugins" >&5
+$as_echo_n "checking whether to install example plugins... " >&6; }
+# Check whether --enable-example-plugins was given.
+if test "${enable_example_plugins+set}" = set; then :
+  enableval=$enable_example_plugins;
+else
+  enable_example_plugins=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_example_plugins" >&5
+$as_echo "$enable_example_plugins" >&6; }
+ if  test "x${enable_example_plugins}" = "xyes" ; then
+  BUILD_EXAMPLE_PLUGINS_TRUE=
+  BUILD_EXAMPLE_PLUGINS_FALSE='#'
+else
+  BUILD_EXAMPLE_PLUGINS_TRUE='#'
+  BUILD_EXAMPLE_PLUGINS_FALSE=
+fi
+
+
+
+#
+# Test tools. The test tools are always built, but not always installed. Installing
+# them is useful for QA, but not useful for most users, so we default this to disabled.
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to install testing tools" >&5
+$as_echo_n "checking whether to install testing tools... " >&6; }
+# Check whether --enable-test-tools was given.
+if test "${enable_test_tools+set}" = set; then :
+  enableval=$enable_test_tools;
+else
+  enable_test_tools=no
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_test_tools" >&5
+$as_echo "$enable_test_tools" >&6; }
+ if  test "x${enable_test_tools}" = "xyes" ; then
+  BUILD_TEST_TOOLS_TRUE=
+  BUILD_TEST_TOOLS_FALSE='#'
+else
+  BUILD_TEST_TOOLS_TRUE='#'
+  BUILD_TEST_TOOLS_FALSE=
+fi
+
+
+#
+# build c++ api
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build c++ api" >&5
+$as_echo_n "checking whether to build c++ api... " >&6; }
+# Check whether --enable-cppapi was given.
+if test "${enable_cppapi+set}" = set; then :
+  enableval=$enable_cppapi;
+else
+  enable_cppapi="no"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_cppapi" >&5
+$as_echo "$enable_cppapi" >&6; }
+ if  test "x${enable_cppapi}" = "xyes" ; then
+  ENABLE_CPPAPI_TRUE=
+  ENABLE_CPPAPI_FALSE='#'
+else
+  ENABLE_CPPAPI_TRUE='#'
+  ENABLE_CPPAPI_FALSE=
+fi
+
+
+#
+# Disable LuaJIT? This is a interrim option, when Lua becomes part of the core
+# requirements, we will remove this option.
+#
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to disable LuaJIT" >&5
+$as_echo_n "checking whether to disable LuaJIT... " >&6; }
+# Check whether --enable-luajit was given.
+if test "${enable_luajit+set}" = set; then :
+  enableval=$enable_luajit;
+else
+  enable_luajit="yes"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_luajit" >&5
+$as_echo "$enable_luajit" >&6; }
+ if  test "x${enable_luajit}" = "xyes" ; then
+  BUILD_LUAJIT_TRUE=
+  BUILD_LUAJIT_FALSE='#'
+else
+  BUILD_LUAJIT_TRUE='#'
+  BUILD_LUAJIT_FALSE=
+fi
+
+
+#
+# Installation directories
+# For each var the following is evaluated
+# foo      Standard variable  eg. ${prefix}/foo
+# rel_foo  Relative to prefix eg. foo
+#
+
+
+ats_last=
+ats_cur="$prefix"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_prefix="${ats_cur}"
+
+
+ats_stripped=`echo $exp_prefix | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_prefix" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_prefix="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_prefix="$exp_prefix"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_prefix"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_prefix"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST prefix"
+
+
+
+
+
+ats_last=
+ats_cur="$exec_prefix"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_exec_prefix="${ats_cur}"
+
+
+ats_stripped=`echo $exp_exec_prefix | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_exec_prefix" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_exec_prefix="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_exec_prefix="$exp_exec_prefix"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_exec_prefix"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_exec_prefix"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exec_prefix"
+
+
+
+
+
+ats_last=
+ats_cur="$bindir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_bindir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_bindir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_bindir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_bindir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_bindir="$exp_bindir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_bindir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_bindir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST bindir"
+
+
+
+
+
+ats_last=
+ats_cur="$sbindir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_sbindir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_sbindir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_sbindir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_sbindir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_sbindir="$exp_sbindir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_sbindir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_sbindir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST sbindir"
+
+
+
+
+
+ats_last=
+ats_cur="$libdir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_libdir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_libdir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_libdir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_libdir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_libdir="$exp_libdir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_libdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_libdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST libdir"
+
+
+
+
+
+ats_last=
+ats_cur="$libexecdir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_libexecdir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_libexecdir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_libexecdir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_libexecdir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_libexecdir="$exp_libexecdir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_libexecdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_libexecdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST libexecdir"
+
+
+
+
+
+ats_last=
+ats_cur="$infodir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_infodir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_infodir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_infodir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_infodir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_infodir="$exp_infodir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_infodir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_infodir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST infodir"
+
+
+
+
+
+ats_last=
+ats_cur="$mandir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_mandir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_mandir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_mandir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_mandir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_mandir="$exp_mandir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_mandir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_mandir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST mandir"
+
+
+
+
+
+ats_last=
+ats_cur="$sysconfdir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_sysconfdir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_sysconfdir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_sysconfdir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_sysconfdir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_sysconfdir="$exp_sysconfdir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_sysconfdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_sysconfdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST sysconfdir"
+
+
+
+
+
+ats_last=
+ats_cur="$datadir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_datadir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_datadir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_datadir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_datadir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_datadir="$exp_datadir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_datadir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_datadir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST datadir"
+
+
+
+
+
+ats_last=
+ats_cur="$installbuilddir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_installbuilddir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_installbuilddir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_installbuilddir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_installbuilddir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_installbuilddir="$exp_installbuilddir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_installbuilddir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_installbuilddir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST installbuilddir"
+
+
+
+
+
+ats_last=
+ats_cur="$includedir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_includedir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_includedir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_includedir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_includedir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_includedir="$exp_includedir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_includedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_includedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST includedir"
+
+
+
+
+
+ats_last=
+ats_cur="$localstatedir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_localstatedir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_localstatedir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_localstatedir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_localstatedir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_localstatedir="$exp_localstatedir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_localstatedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_localstatedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST localstatedir"
+
+
+
+
+
+ats_last=
+ats_cur="$runtimedir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_runtimedir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_runtimedir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_runtimedir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_runtimedir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_runtimedir="$exp_runtimedir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_runtimedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_runtimedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST runtimedir"
+
+
+
+
+
+ats_last=
+ats_cur="$logdir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_logdir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_logdir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_logdir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_logdir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_logdir="$exp_logdir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_logdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_logdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST logdir"
+
+
+
+
+
+ats_last=
+ats_cur="$cachedir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_cachedir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_cachedir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_cachedir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_cachedir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_cachedir="$exp_cachedir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_cachedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_cachedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST cachedir"
+
+
+
+
+
+ats_last=
+ats_cur="$docdir"
+while test "x${ats_cur}" != "x${ats_last}";
+do
+  ats_last="${ats_cur}"
+  ats_cur=`eval "echo ${ats_cur}"`
+done
+exp_docdir="${ats_cur}"
+
+
+ats_stripped=`echo $exp_docdir | sed -e "s#^${prefix}##"`
+# check if the stripping was successful
+if test "x$exp_docdir" != "x${ats_stripped}"; then
+# it was, so strip of any leading slashes
+    rel_docdir="`echo ${ats_stripped} | sed -e 's#^/*##'`"
+else
+# it wasn't so return the original
+    rel_docdir="$exp_docdir"
+fi
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST exp_docdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST rel_docdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST docdir"
+
+
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgbindir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgsbindir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkglibdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkglibexecdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgsysconfdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgdatadir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkglocalstatedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgruntimedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkglogdir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgcachedir"
+
+
+
+  TS_VAR_SUBST="$TS_VAR_SUBST pkgdocdir"
+
+
+
+
+# -----------------------------------------------------------------------------
+# 3. CHECK FOR PROGRAMS
+
+# Compiler selection:
+#
+# Implementation note (toc)
+# 1) Get default compiler settings (case statement.)
+# 2) Check for over-rides of default compiler.
+# 3) Set standard CFLAGS, SHARED_CFLAGS, etc.
+# 4) (in first kludge mode block...) obtain any further CFLAG-type additions.
+# 5) Test compilers with all flags set.
+
+# AC_PROG can sometimes mangle CFLAGS etc.
+# in particular, on Linux they insert -g -O2, here we preserve any user CFLAGS
+_ts_saved_CFLAGS="${CFLAGS}"
+_ts_saved_CXXFLAGS="${CXXFLAGS}"
+
+# We force the compiler search list because the default GCC on Darwin cannot build
+# Traffic Server. On most (all?) platforms, cc and c++ should be the preferred default
+# compiler.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in cc gcc clang icc
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cc gcc clang icc
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
+$as_echo_n "checking for style of include used by $am_make... " >&6; }
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from 'make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
+$as_echo "$_am_result" >&6; }
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+  am__nodep='_no'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in c++ g++ clang++ icpc
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in c++ g++ clang++ icpc
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CXX"  am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CXX_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CXX_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CXX_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CXX_dependencies_compiler_type" >&6; }
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+  am__fastdepCXX_TRUE=
+  am__fastdepCXX_FALSE='#'
+else
+  am__fastdepCXX_TRUE='#'
+  am__fastdepCXX_FALSE=
+fi
+
+
+
+if test "x$CC" != xcc; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC and cc understand -c and -o together" >&5
+$as_echo_n "checking whether $CC and cc understand -c and -o together... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether cc understands -c and -o together" >&5
+$as_echo_n "checking whether cc understands -c and -o together... " >&6; }
+fi
+set dummy $CC; ac_cc=`$as_echo "$2" |
+		      sed 's/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/'`
+if eval \${ac_cv_prog_cc_${ac_cc}_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+# Make sure it works both with $CC and with simple cc.
+# We do the test twice because some compilers refuse to overwrite an
+# existing .o file with -o, though they will create one.
+ac_try='$CC -c conftest.$ac_ext -o conftest2.$ac_objext >&5'
+rm -f conftest2.*
+if { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } &&
+   test -f conftest2.$ac_objext && { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; };
+then
+  eval ac_cv_prog_cc_${ac_cc}_c_o=yes
+  if test "x$CC" != xcc; then
+    # Test first that cc exists at all.
+    if { ac_try='cc -c conftest.$ac_ext >&5'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+      ac_try='cc -c conftest.$ac_ext -o conftest2.$ac_objext >&5'
+      rm -f conftest2.*
+      if { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } &&
+	 test -f conftest2.$ac_objext && { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; };
+      then
+	# cc works too.
+	:
+      else
+	# cc exists but doesn't like -o.
+	eval ac_cv_prog_cc_${ac_cc}_c_o=no
+      fi
+    fi
+  fi
+else
+  eval ac_cv_prog_cc_${ac_cc}_c_o=no
+fi
+rm -f core conftest*
+
+fi
+if eval test \$ac_cv_prog_cc_${ac_cc}_c_o = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+$as_echo "#define NO_MINUS_C_MINUS_O 1" >>confdefs.h
+
+fi
+
+# FIXME: we rely on the cache variable name because
+# there is no other way.
+set dummy $CC
+am_cc=`echo $2 | sed 's/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/'`
+eval am_t=\$ac_cv_prog_cc_${am_cc}_c_o
+if test "$am_t" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if ${ac_cv_prog_CXXCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+# By default we simply use the C compiler to build assembly code.
+
+test "${CCAS+set}" = set || CCAS=$CC
+test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
+
+
+
+depcc="$CCAS"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CCAS_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CCAS_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CCAS_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CCAS_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CCAS_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CCAS_dependencies_compiler_type" >&6; }
+CCASDEPMODE=depmode=$am_cv_CCAS_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CCAS_dependencies_compiler_type" = gcc3; then
+  am__fastdepCCAS_TRUE=
+  am__fastdepCCAS_FALSE='#'
+else
+  am__fastdepCCAS_TRUE='#'
+  am__fastdepCCAS_FALSE=
+fi
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler vendor" >&5
+$as_echo_n "checking for C compiler vendor... " >&6; }
+if ${ax_cv_c_compiler_vendor+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # note: don't check for gcc first since some other compilers define __GNUC__
+  vendors="intel:     __ICC,__ECC,__INTEL_COMPILER
+           ibm:       __xlc__,__xlC__,__IBMC__,__IBMCPP__
+           pathscale: __PATHCC__,__PATHSCALE__
+           clang:     __clang__
+           gnu:       __GNUC__
+           sun:       __SUNPRO_C,__SUNPRO_CC
+           hp:        __HP_cc,__HP_aCC
+           dec:       __DECC,__DECCXX,__DECC_VER,__DECCXX_VER
+           borland:   __BORLANDC__,__TURBOC__
+           comeau:    __COMO__
+           cray:      _CRAYC
+           kai:       __KCC
+           lcc:       __LCC__
+           sgi:       __sgi,sgi
+           microsoft: _MSC_VER
+           metrowerks: __MWERKS__
+           watcom:    __WATCOMC__
+           portland:  __PGI
+           unknown:   UNKNOWN"
+  for ventest in $vendors; do
+    case $ventest in
+      *:) vendor=$ventest; continue ;;
+      *)  vencpp="defined("`echo $ventest | sed 's/,/) || defined(/g'`")" ;;
+    esac
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+      #if !($vencpp)
+        thisisanerror;
+      #endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+  ax_cv_c_compiler_vendor=`echo $vendor | cut -d: -f1`
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_c_compiler_vendor" >&5
+$as_echo "$ax_cv_c_compiler_vendor" >&6; }
+
+
+CFLAGS="${_ts_saved_CFLAGS}"
+CXXFLAGS="${_ts_saved_CXXFLAGS}"
+
+# AX_CXX_COMPILE_STDCXX_11 requires the current language to be C++.
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+      ac_success=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features by default" >&5
+$as_echo_n "checking whether $CXX supports C++11 features by default... " >&6; }
+if ${ax_cv_cxx_compile_cxx11+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+
+    struct in_class_initialization {
+      int i = 0;
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);
+
+    void * null_pointer_keyword = nullptr;
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ax_cv_cxx_compile_cxx11=yes
+else
+  ax_cv_cxx_compile_cxx11=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cxx_compile_cxx11" >&5
+$as_echo "$ax_cv_cxx_compile_cxx11" >&6; }
+  if test x$ax_cv_cxx_compile_cxx11 = xyes; then
+    ac_success=yes
+  fi
+
+
+
+    if test x$ac_success = xno; then
+    for switch in -std=c++11 -std=c++0x; do
+      cachevar=`$as_echo "ax_cv_cxx_compile_cxx11_$switch" | $as_tr_sh`
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports C++11 features with $switch" >&5
+$as_echo_n "checking whether $CXX supports C++11 features with $switch... " >&6; }
+if eval \${$cachevar+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_CXXFLAGS="$CXXFLAGS"
+         CXXFLAGS="$CXXFLAGS $switch"
+         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  template <typename T>
+    struct check
+    {
+      static_assert(sizeof(int) <= sizeof(T), "not big enough");
+    };
+
+
+    struct in_class_initialization {
+      int i = 0;
+    };
+
+    typedef check<check<bool>> right_angle_brackets;
+
+    int a;
+    decltype(a) b;
+
+    typedef check<int> check_type;
+    check_type c;
+    check_type&& cr = static_cast<check_type&&>(c);
+
+    void * null_pointer_keyword = nullptr;
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval $cachevar=yes
+else
+  eval $cachevar=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+         CXXFLAGS="$ac_save_CXXFLAGS"
+fi
+eval ac_res=\$$cachevar
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+      if eval test x\$$cachevar = xyes; then
+        CXXFLAGS="$CXXFLAGS $switch"
+        ac_success=yes
+        break
+      fi
+    done
+  fi
+
+  if test x$ac_success = xno ; then
+
+  enable_cxx_11_support=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: disabling features that depend on C++11 support" >&5
+$as_echo "$as_me: disabling features that depend on C++11 support" >&6;}
+
+  else
+    enable_cxx_11_support=yes
+  fi
+
+
+ if  test "x${enable_cxx_11_support}" = "xyes" ; then
+  BUILD_HAVE_CXX_11_TRUE=
+  BUILD_HAVE_CXX_11_FALSE='#'
+else
+  BUILD_HAVE_CXX_11_TRUE='#'
+  BUILD_HAVE_CXX_11_FALSE=
+fi
+
+if test "x${enable_cxx_11_support}" = "xyes" ; then
+
+$as_echo "#define HAVE_CXX_11 1" >>confdefs.h
+
+fi
+
+# While we are in C++ mode, check for the GNU hash_map extension.
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+for ac_header in unordered_map unordered_set
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in unordered_map unordered_set
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for <ext/hash_map>" >&5
+$as_echo_n "checking for <ext/hash_map>... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+    #include <string>
+    #include <ext/hash_map>
+
+int
+main ()
+{
+
+     __gnu_cxx::hash_map<std::string, std::string> map;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   have_gnu_cxx_hash_map=yes
+else
+   have_gnu_cxx_hash_map=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_gnu_cxx_hash_map" >&5
+$as_echo "$have_gnu_cxx_hash_map" >&6; }
+if test "x${have_gnu_cxx_hash_map}" = "xyes" ; then
+
+$as_echo "#define HAVE_GNU_CXX_HASH_MAP 1" >>confdefs.h
+
+fi
+
+# And check for std::shared_ptr vs std::tr1::shared_ptr
+
+for ac_header in unordered_map unordered_set
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_cxx_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in unordered_map unordered_set
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::shared_ptr" >&5
+$as_echo_n "checking for std::shared_ptr... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+    #include <memory>
+    using std::shared_ptr;
+
+int
+main ()
+{
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+   have_std_shared_ptr=yes
+else
+   have_std_shared_ptr=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_std_shared_ptr" >&5
+$as_echo "$have_std_shared_ptr" >&6; }
+if test "x${have_std_shared_ptr}" = "xyes" ; then
+
+$as_echo "#define HAVE_STD_SHARED_PTR 1" >>confdefs.h
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+# Various OS specific setup. Note that on Solaris, 32-bit is always the
+# default, even on a box that with 64-bit architecture.
+# This also sets up a "normalized" variable and define $host_os_def.
+defer_accept=1
+case $host_os in
+  linux*)
+    host_os_def="linux"
+    defer_accept=45
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+    ;;
+  darwin*)
+    host_os_def="darwin"
+    ;;
+  freebsd*)
+    host_os_def="freebsd"
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I/usr/local/include\""
+    CPPFLAGS="-I/usr/local/include"
+  else
+    ats_addto_bugger="-I/usr/local/include"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+    ;;
+  kfreebsd*)
+    host_os_def="freebsd"
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I/usr/local/include\""
+    CPPFLAGS="-I/usr/local/include"
+  else
+    ats_addto_bugger="-I/usr/local/include"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-Dkfreebsd\""
+    CPPFLAGS="-Dkfreebsd"
+  else
+    ats_addto_bugger="-Dkfreebsd"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+    ;;
+  openbsd*)
+    host_os_def="openbsd"
+    ;;
+  solaris*)
+    host_os_def="solaris"
+    case "`isalist`" in
+      *amd64*)
+
+  if test "x$CFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CFLAGS to \"-m64\""
+    CFLAGS="-m64"
+  else
+    ats_addto_bugger="-m64"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CFLAGS"
+        CFLAGS="$CFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CXXFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CXXFLAGS to \"-m64\""
+    CXXFLAGS="-m64"
+  else
+    ats_addto_bugger="-m64"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CXXFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CXXFLAGS"
+        CXXFLAGS="$CXXFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LUA_LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LUA_LDFLAGS to \"-m64\""
+    LUA_LDFLAGS="-m64"
+  else
+    ats_addto_bugger="-m64"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LUA_LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LUA_LDFLAGS"
+        LUA_LDFLAGS="$LUA_LDFLAGS $i"
+      fi
+    done
+  fi
+
+        ;;
+    esac
+    ;;
+  *)
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+    host_os_def=unknown
+    ;;
+esac
+
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-D$host_os_def\""
+    CPPFLAGS="-D$host_os_def"
+  else
+    ats_addto_bugger="-D$host_os_def"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar lib "link -lib"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar lib "link -lib"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the archiver ($AR) interface" >&5
+$as_echo_n "checking the archiver ($AR) interface... " >&6; }
+if ${am_cv_ar_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  am_cv_ar_interface=ar
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int some_variable = 0;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$am_ar_try\""; } >&5
+  (eval $am_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test "$ac_status" -eq 0; then
+        am_cv_ar_interface=ar
+      else
+        am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&5'
+        { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$am_ar_try\""; } >&5
+  (eval $am_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+        if test "$ac_status" -eq 0; then
+          am_cv_ar_interface=lib
+        else
+          am_cv_ar_interface=unknown
+        fi
+      fi
+      rm -f conftest.lib libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_ar_interface" >&5
+$as_echo "$am_cv_ar_interface" >&6; }
+
+case $am_cv_ar_interface in
+ar)
+  ;;
+lib)
+  # Microsoft lib, so override with the ar-lib wrapper script.
+  # FIXME: It is wrong to rewrite AR.
+  # But if we don't then we get into trouble of one sort or another.
+  # A longer-term fix would be to have automake use am__AR in this case,
+  # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
+  # similar.
+  AR="$am_aux_dir/ar-lib $AR"
+  ;;
+unknown)
+  as_fn_error $? "could not determine $AR interface" "$LINENO" 5
+  ;;
+esac
+
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+
+case `pwd` in
+  *\ * | *\	*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+esac
+
+
+
+macro_version='2.4.2'
+macro_revision='1.3337'
+
+
+
+
+
+
+
+
+
+
+
+
+
+ltmain="$ac_aux_dir/ltmain.sh"
+
+# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+$as_echo_n "checking how to print strings... " >&6; }
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO ""
+}
+
+case "$ECHO" in
+  printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+$as_echo "printf" >&6; } ;;
+  print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+$as_echo "print -r" >&6; } ;;
+  *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+$as_echo "cat" >&6; } ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+$as_echo_n "checking for fgrep... " >&6; }
+if ${ac_cv_path_FGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+   then ac_cv_path_FGREP="$GREP -F"
+   else
+     if test -z "$FGREP"; then
+  ac_path_FGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in fgrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_FGREP" || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+  # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'FGREP' >> "conftest.nl"
+    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_FGREP="$ac_path_FGREP"
+      ac_path_FGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_FGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_FGREP"; then
+    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_FGREP=$FGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+$as_echo "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+
+
+test -z "$GREP" && GREP=grep
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if ${lt_cv_path_NM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM="$NM"
+else
+  lt_nm_to_check="${ac_tool_prefix}nm"
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS="$lt_save_ifs"
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm="$ac_dir/$lt_tmp_nm"
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext" ; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	case `"$tmp_nm" -B /dev/null 2>&1 | sed '1q'` in
+	*/dev/null* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS="$lt_save_ifs"
+  done
+  : ${lt_cv_path_NM=no}
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+$as_echo "$lt_cv_path_NM" >&6; }
+if test "$lt_cv_path_NM" != "no"; then
+  NM="$lt_cv_path_NM"
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in dumpbin "link -dump"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DUMPBIN"; then
+  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+$as_echo "$DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$DUMPBIN" && break
+  done
+fi
+if test -z "$DUMPBIN"; then
+  ac_ct_DUMPBIN=$DUMPBIN
+  for ac_prog in dumpbin "link -dump"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DUMPBIN"; then
+  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+$as_echo "$ac_ct_DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_DUMPBIN" && break
+done
+
+  if test "x$ac_ct_DUMPBIN" = x; then
+    DUMPBIN=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DUMPBIN=$ac_ct_DUMPBIN
+  fi
+fi
+
+    case `$DUMPBIN -symbols /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+
+  if test "$DUMPBIN" != ":"; then
+    NM="$DUMPBIN"
+  fi
+fi
+test -z "$NM" && NM=nm
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+$as_echo_n "checking the name lister ($NM) interface... " >&6; }
+if ${lt_cv_nm_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+  cat conftest.out >&5
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+$as_echo "$lt_cv_nm_interface" >&6; }
+
+# find the maximum length of command line arguments
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+$as_echo_n "checking the maximum length of command line arguments... " >&6; }
+if ${lt_cv_sys_max_cmd_len+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+    i=0
+  teststring="ABCD"
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8 ; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test "X"`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test $i != 17 # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+
+fi
+
+if test -n $lt_cv_sys_max_cmd_len ; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+
+
+
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands some XSI constructs" >&5
+$as_echo_n "checking whether the shell understands some XSI constructs... " >&6; }
+# Try some XSI features
+xsi_shell=no
+( _lt_dummy="a/b/c"
+  test "${_lt_dummy##*/},${_lt_dummy%/*},${_lt_dummy#??}"${_lt_dummy%"$_lt_dummy"}, \
+      = c,a/b,b/c, \
+    && eval 'test $(( 1 + 1 )) -eq 2 \
+    && test "${#_lt_dummy}" -eq 5' ) >/dev/null 2>&1 \
+  && xsi_shell=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xsi_shell" >&5
+$as_echo "$xsi_shell" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the shell understands \"+=\"" >&5
+$as_echo_n "checking whether the shell understands \"+=\"... " >&6; }
+lt_shell_append=no
+( foo=bar; set foo baz; eval "$1+=\$2" && test "$foo" = barbaz ) \
+    >/dev/null 2>&1 \
+  && lt_shell_append=yes
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_shell_append" >&5
+$as_echo "$lt_shell_append" >&6; }
+
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+
+
+
+
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
+if ${lt_cv_to_host_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+
+fi
+
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+$as_echo "$lt_cv_to_host_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
+if ${lt_cv_to_tool_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  #assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+
+fi
+
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+$as_echo "$lt_cv_to_tool_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+$as_echo_n "checking for $LD option to reload object files... " >&6; }
+if ${lt_cv_ld_reload_flag+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_reload_flag='-r'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+$as_echo "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test "$GCC" != yes; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test "$GCC" = yes; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib ${wl}-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+$as_echo_n "checking how to recognize dependent libraries... " >&6; }
+if ${lt_cv_deplibs_check_method+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# `unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# which responds to the $file_magic_cmd with a given extended regex.
+# If you have `file' or equivalent on your system and you're not sure
+# whether `pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[45]*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  # func_win32_libid assumes BSD nm, so disallow it if using MS dumpbin.
+  if ( test "$lt_cv_nm_interface" = "BSD nm" && file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[3-9]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+$as_echo "$lt_cv_deplibs_check_method" >&6; }
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
+if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh
+  # decide which to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd="$ECHO"
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+$as_echo_n "checking for archiver @FILE support... " >&6; }
+if ${lt_cv_ar_at_file+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ar_at_file=no
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test "$ac_status" -eq 0; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	if test "$ac_status" -ne 0; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+$as_echo "$lt_cv_ar_at_file" >&6; }
+
+if test "x$lt_cv_ar_at_file" = xno; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+
+
+
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
+if ${lt_cv_sys_global_symbol_pipe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  if test "$host_cpu" = ia64; then
+    symcode='[ABCDEGRST]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris*)
+  symcode='[BDRT]'
+  ;;
+sco3.2v5*)
+  symcode='[DT]'
+  ;;
+sysv4.2uw2*)
+  symcode='[DT]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[ABDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern int \1();/p' -e 's/^$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\)[ ]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"\2\", (void *) \&\2},/p'"
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n -e 's/^: \([^ ]*\)[ ]*$/  {\\\"\1\\\", (void *) 0},/p' -e 's/^$symcode* \([^ ]*\) \(lib[^ ]*\)$/  {\"\2\", (void *) \&\2},/p' -e 's/^$symcode* \([^ ]*\) \([^ ]*\)$/  {\"lib\2\", (void *) \&\2},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function
+    # and D for any global variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK '"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=0}; \$ 0~/\(\).*\|/{f=1}; {printf f ? \"T \" : \"D \"};"\
+"     {split(\$ 0, a, /\||\r/); split(a[2], s)};"\
+"     s[1]~/^[@?]/{print s[1], s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print t[1], substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
+  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(_WIN32_WCE)
+/* DATA imports from DLLs on WIN32 con't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined(__osf__)
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* \(.*\) \(.*\)$/  {\"\2\", (void *) \&\2},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS="conftstm.$ac_objext"
+	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext}; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+$as_echo_n "checking for sysroot... " >&6; }
+
+# Check whether --with-sysroot was given.
+if test "${with_sysroot+set}" = set; then :
+  withval=$with_sysroot;
+else
+  with_sysroot=no
+fi
+
+
+lt_sysroot=
+case ${with_sysroot} in #(
+ yes)
+   if test "$GCC" = yes; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${with_sysroot}" >&5
+$as_echo "${with_sysroot}" >&6; }
+   as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
+   ;;
+esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+$as_echo "${lt_sysroot:-no}" >&6; }
+
+
+
+
+
+# Check whether --enable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then :
+  enableval=$enable_libtool_lock;
+fi
+
+test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE="32"
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE="64"
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out which ABI we are using.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    if test "$lt_cv_prog_gnu_ld" = yes; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_i386"
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -belf"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
+if ${lt_cv_cc_needs_belf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_cc_needs_belf=yes
+else
+  lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+$as_echo "$lt_cv_cc_needs_belf" >&6; }
+  if test x"$lt_cv_cc_needs_belf" != x"yes"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS="$SAVE_CFLAGS"
+  fi
+  ;;
+*-*solaris*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD="${LD-ld}_sol2"
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks="$enable_libtool_lock"
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$MANIFEST_TOOL"; then
+  ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
+if test -n "$MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+$as_echo "$MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
+  ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
+  # Extract the first word of "mt", so it can be a program name with args.
+set dummy mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_MANIFEST_TOOL"; then
+  ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
+if test -n "$ac_ct_MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_MANIFEST_TOOL" = x; then
+    MANIFEST_TOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
+  fi
+else
+  MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
+fi
+
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
+if ${lt_cv_path_mainfest_tool+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&5
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+$as_echo "$lt_cv_path_mainfest_tool" >&6; }
+if test "x$lt_cv_path_mainfest_tool" != xyes; then
+  MANIFEST_TOOL=:
+fi
+
+
+
+
+
+
+  case $host_os in
+    rhapsody* | darwin*)
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DSYMUTIL"; then
+  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+$as_echo "$DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+  ac_ct_DSYMUTIL=$DSYMUTIL
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DSYMUTIL"; then
+  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+$as_echo "$ac_ct_DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DSYMUTIL" = x; then
+    DSYMUTIL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DSYMUTIL=$ac_ct_DSYMUTIL
+  fi
+else
+  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NMEDIT"; then
+  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+$as_echo "$NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+  ac_ct_NMEDIT=$NMEDIT
+  # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_NMEDIT"; then
+  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_NMEDIT="nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+$as_echo "$ac_ct_NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_NMEDIT" = x; then
+    NMEDIT=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    NMEDIT=$ac_ct_NMEDIT
+  fi
+else
+  NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LIPO"; then
+  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+$as_echo "$LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+  ac_ct_LIPO=$LIPO
+  # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_LIPO"; then
+  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_LIPO="lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+$as_echo "$ac_ct_LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_LIPO" = x; then
+    LIPO=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    LIPO=$ac_ct_LIPO
+  fi
+else
+  LIPO="$ac_cv_prog_LIPO"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL"; then
+  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+$as_echo "$OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+  ac_ct_OTOOL=$OTOOL
+  # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL"; then
+  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL="otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+$as_echo "$ac_ct_OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL" = x; then
+    OTOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL=$ac_ct_OTOOL
+  fi
+else
+  OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL64"; then
+  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+$as_echo "$OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+  ac_ct_OTOOL64=$OTOOL64
+  # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL64"; then
+  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL64="otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+$as_echo "$ac_ct_OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL64" = x; then
+    OTOOL64=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL64=$ac_ct_OTOOL64
+  fi
+else
+  OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+$as_echo_n "checking for -single_module linker flag... " >&6; }
+if ${lt_cv_apple_cc_single_mod+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_apple_cc_single_mod=no
+      if test -z "${LT_MULTI_MODULE}"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&5
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test $_lt_result -eq 0; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&5
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
+if ${lt_cv_ld_exported_symbols_list+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_ld_exported_symbols_list=yes
+else
+  lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+$as_echo_n "checking for -force_load linker flag... " >&6; }
+if ${lt_cv_ld_force_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+      echo "$AR cru libconftest.a conftest.o" >&5
+      $AR cru libconftest.a conftest.o 2>&5
+      echo "$RANLIB libconftest.a" >&5
+      $RANLIB libconftest.a 2>&5
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&5
+      elif test -f conftest && test $_lt_result -eq 0 && $GREP forced_load conftest >/dev/null 2>&1 ; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&5
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+$as_echo "$lt_cv_ld_force_load" >&6; }
+    case $host_os in
+    rhapsody* | darwin1.[012])
+      _lt_dar_allow_undefined='${wl}-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+	10.[012]*)
+	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
+	10.*)
+	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test "$lt_cv_apple_cc_single_mod" = "yes"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test "$lt_cv_ld_exported_symbols_list" = "yes"; then
+      _lt_dar_export_syms=' ${wl}-exported_symbols_list,$output_objdir/${libname}-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/${libname}-symbols.expsym ${lib}'
+    fi
+    if test "$DSYMUTIL" != ":" && test "$lt_cv_ld_force_load" = "no"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+
+for ac_header in dlfcn.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DLFCN_H 1
+_ACEOF
+
+fi
+
+done
+
+
+
+func_stripname_cnf ()
+{
+  case ${2} in
+  .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+  *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+  esac
+} # func_stripname_cnf
+
+
+
+
+
+# Set options
+
+
+
+        enable_dlopen=no
+
+
+  enable_win32_dll=no
+
+
+            # Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then :
+  enableval=$enable_shared; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_shared=yes
+fi
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-pic was given.
+if test "${with_pic+set}" = set; then :
+  withval=$with_pic; lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for lt_pkg in $withval; do
+	IFS="$lt_save_ifs"
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  pic_mode=default
+fi
+
+
+test -z "$pic_mode" && pic_mode=default
+
+
+
+
+
+
+
+  # Check whether --enable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then :
+  enableval=$enable_fast_install; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_fast_install=yes
+fi
+
+
+
+
+
+
+
+
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS="$ltmain"
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+test -z "$LN_S" && LN_S="ln -s"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+$as_echo_n "checking for objdir... " >&6; }
+if ${lt_cv_objdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+$as_echo "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define LT_OBJDIR "$lt_cv_objdir/"
+_ACEOF
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "X${COLLECT_NAMES+set}" != Xset; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a `.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld="$lt_cv_prog_gnu_ld"
+
+old_CC="$CC"
+old_CFLAGS="$CFLAGS"
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/${ac_tool_prefix}file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+$as_echo_n "checking for file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD="$MAGIC_CMD"
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/file; then
+      lt_cv_path_MAGIC_CMD="$ac_dir/file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS="$lt_save_ifs"
+  MAGIC_CMD="$lt_save_MAGIC_CMD"
+  ;;
+esac
+fi
+
+MAGIC_CMD="$lt_cv_path_MAGIC_CMD"
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC="$CC"
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+
+lt_prog_compiler_no_builtin_flag=
+
+if test "$GCC" = yes; then
+  case $cc_basename in
+  nvcc*)
+    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+  *)
+    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+  esac
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test x"$lt_cv_prog_compiler_rtti_exceptions" = xyes; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+
+
+
+
+
+  lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+
+  if test "$GCC" = yes; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      lt_prog_compiler_wl='-Xlinker '
+      if test -n "$lt_prog_compiler_pic"; then
+        lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      else
+	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='${wl}-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu)
+      case $cc_basename in
+      # old Intel for x86_64 which still supported -KPIC.
+      ecc*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-KPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='--shared'
+	lt_prog_compiler_static='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	lt_prog_compiler_wl='-Wl,-Wl,,'
+	lt_prog_compiler_pic='-PIC'
+	lt_prog_compiler_static='-Bstatic'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fpic'
+	lt_prog_compiler_static='-Bstatic'
+        ;;
+      ccc*)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-qpic'
+	lt_prog_compiler_static='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Wl,'
+	  ;;
+        *Intel*\ [CF]*Compiler*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fPIC'
+	  lt_prog_compiler_static='-static'
+	  ;;
+	*Portland\ Group*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fpic'
+	  lt_prog_compiler_static='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    rdos*)
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	lt_prog_compiler_wl='-Qoption ld ';;
+      *)
+	lt_prog_compiler_wl='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec ;then
+	lt_prog_compiler_pic='-Kconform_pic'
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    unicos*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_can_build_shared=no
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+$as_echo "$lt_cv_prog_compiler_pic" >&6; }
+lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test x"$lt_cv_prog_compiler_pic_works" = xyes; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test x"$lt_cv_prog_compiler_static_works" = xyes; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test "$hard_links" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  runpath_var=
+  allow_undefined_flag=
+  always_export_symbols=no
+  archive_cmds=
+  archive_expsym_cmds=
+  compiler_needs_object=no
+  enable_shared_with_static_runtimes=no
+  export_dynamic_flag_spec=
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  hardcode_automatic=no
+  hardcode_direct=no
+  hardcode_direct_absolute=no
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_separator=
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  inherit_rpath=no
+  link_all_deplibs=unknown
+  module_cmds=
+  module_expsym_cmds=
+  old_archive_from_new_cmds=
+  old_archive_from_expsyms_cmds=
+  thread_safe_flag_spec=
+  whole_archive_flag_spec=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ` (' and `)$', so one must not match beginning or
+  # end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+  # as well as any symbol that contains `d'.
+  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test "$GCC" != yes; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test "$with_gnu_ld" = yes; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test "$lt_use_gnu_ld_interface" = yes; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='${wl}'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[3-9]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test "$host_cpu" != ia64; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	allow_undefined_flag=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      export_dynamic_flag_spec='${wl}--export-all-symbols'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file (1st line
+	# is EXPORTS), use it as is; otherwise, prepend...
+	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	  cp $export_symbols $output_objdir/$soname.def;
+	else
+	  echo EXPORTS > $output_objdir/$soname.def;
+	  cat $export_symbols >> $output_objdir/$soname.def;
+	fi~
+	$CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    haiku*)
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+      link_all_deplibs=yes
+      ;;
+
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+      export_dynamic_flag_spec='${wl}-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      archive_expsym_cmds='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test "$host_os" = linux-dietlibc; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test "$tmp_diet" = no
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  whole_archive_flag_spec=
+	  tmp_sharedflag='--shared' ;;
+	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  whole_archive_flag_spec='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  compiler_needs_object=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  whole_archive_flag_spec='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	  compiler_needs_object=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+
+        if test "x$supports_anon_versioning" = xyes; then
+          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+	    cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	    echo "local: *; };" >> $output_objdir/$libname.ver~
+	    $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+	  hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test "x$supports_anon_versioning" = xyes; then
+	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+	      cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+	      echo "local: *; };" >> $output_objdir/$libname.ver~
+	      $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    ld_shlibs=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test "$ld_shlibs" = no; then
+      runpath_var=
+      hardcode_libdir_flag_spec=
+      export_dynamic_flag_spec=
+      whole_archive_flag_spec=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test "$GCC" = yes && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix[4-9]*)
+      if test "$host_cpu" = ia64; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=""
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to AIX nm, but means don't demangle with GNU nm
+	# Also, AIX nm treats weak defined symbols like other global
+	# defined symbols, whereas GNU nm marks them as "W".
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	else
+	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# need to do runtime linking.
+	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_direct_absolute=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      file_list_spec='${wl}-f,'
+
+      if test "$GCC" = yes; then
+	case $host_os in aix4.[012]|aix4.[012].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  hardcode_direct=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  hardcode_minus_L=yes
+	  hardcode_libdir_flag_spec='-L$libdir'
+	  hardcode_libdir_separator=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test "$aix_use_runtimelinking" = yes; then
+	  shared_flag="$shared_flag "'${wl}-G'
+	fi
+      else
+	# not using gcc
+	if test "$host_cpu" = ia64; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag='${wl}-G'
+	  else
+	    shared_flag='${wl}-bM:SRE'
+	  fi
+	fi
+      fi
+
+      export_dynamic_flag_spec='${wl}-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test "$aix_use_runtimelinking" = yes; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	allow_undefined_flag='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+      else
+	if test "$host_cpu" = ia64; then
+	  hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+	  allow_undefined_flag="-z nodefs"
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+	 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  no_undefined_flag=' ${wl}-bernotok'
+	  allow_undefined_flag=' ${wl}-berok'
+	  if test "$with_gnu_ld" = yes; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    whole_archive_flag_spec='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    whole_archive_flag_spec='$convenience'
+	  fi
+	  archive_cmds_need_lc=yes
+	  # This is similar to how AIX traditionally builds its shared libraries.
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[45]*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	always_export_symbols=yes
+	file_list_spec='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	archive_expsym_cmds='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	    sed -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	  else
+	    sed -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	  fi~
+	  $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	  linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
+	enable_shared_with_static_runtimes=yes
+	exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	old_postinstall_cmds='chmod 644 $oldlib'
+	postlink_cmds='lt_outputfile="@OUTPUT@"~
+	  lt_tool_outputfile="@TOOL_OUTPUT@"~
+	  case $lt_outputfile in
+	    *.exe|*.EXE) ;;
+	    *)
+	      lt_outputfile="$lt_outputfile.exe"
+	      lt_tool_outputfile="$lt_tool_outputfile.exe"
+	      ;;
+	  esac~
+	  if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	    $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	    $RM "$lt_outputfile.manifest";
+	  fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=".dll"
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	old_archive_from_new_cmds='true'
+	# FIXME: Should let the user specify the lib program.
+	old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	enable_shared_with_static_runtimes=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc=no
+  hardcode_direct=no
+  hardcode_automatic=yes
+  hardcode_shlibpath_var=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec=''
+  fi
+  link_all_deplibs=yes
+  allow_undefined_flag="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    archive_expsym_cmds="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    module_expsym_cmds="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+
+  else
+  ld_shlibs=no
+  fi
+
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test "$GCC" = yes; then
+	archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      else
+	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='${wl}-E'
+      ;;
+
+    hpux10*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test "$with_gnu_ld" = no; then
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_direct_absolute=yes
+	export_dynamic_flag_spec='${wl}-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	hardcode_minus_L=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test "$GCC" = yes && test "$with_gnu_ld" = no; then
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -shared ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds='$CC -shared $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+$as_echo_n "checking if $CC understands -b... " >&6; }
+if ${lt_cv_prog_compiler__b+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler__b=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -b"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler__b=yes
+       fi
+     else
+       lt_cv_prog_compiler__b=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+$as_echo "$lt_cv_prog_compiler__b" >&6; }
+
+if test x"$lt_cv_prog_compiler__b" = xyes; then
+    archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+	  ;;
+	esac
+      fi
+      if test "$with_gnu_ld" = no; then
+	hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+	hardcode_libdir_separator=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  hardcode_direct=no
+	  hardcode_shlibpath_var=no
+	  ;;
+	*)
+	  hardcode_direct=yes
+	  hardcode_direct_absolute=yes
+	  export_dynamic_flag_spec='${wl}-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  hardcode_minus_L=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
+if ${lt_cv_irix_exported_symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  save_LDFLAGS="$LDFLAGS"
+	   LDFLAGS="$LDFLAGS -shared ${wl}-exported_symbol ${wl}foo ${wl}-update_registry ${wl}/dev/null"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo (void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_irix_exported_symbol=yes
+else
+  lt_cv_irix_exported_symbol=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+           LDFLAGS="$save_LDFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+$as_echo "$lt_cv_irix_exported_symbol" >&6; }
+	if test "$lt_cv_irix_exported_symbol" = yes; then
+          archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations ${wl}-exports_file ${wl}$export_symbols -o $lib'
+	fi
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      inherit_rpath=yes
+      link_all_deplibs=yes
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd*)
+      if test -f /usr/libexec/ld.so; then
+	hardcode_direct=yes
+	hardcode_shlibpath_var=no
+	hardcode_direct_absolute=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags ${wl}-retain-symbols-file,$export_symbols'
+	  hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+	  export_dynamic_flag_spec='${wl}-E'
+	else
+	  case $host_os in
+	   openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
+	     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+	     hardcode_libdir_flag_spec='-R$libdir'
+	     ;;
+	   *)
+	     archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	     hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
+	     ;;
+	  esac
+	fi
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      archive_cmds='$ECHO "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~echo DATA >> $output_objdir/$libname.def~echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
+      old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
+      ;;
+
+    osf3*)
+      if test "$GCC" = yes; then
+	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test "$GCC" = yes; then
+	allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $pic_flag $libobjs $deplibs $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+	$CC -shared${allow_undefined_flag} ${wl}-input ${wl}$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_separator=:
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z defs'
+      if test "$GCC" = yes; then
+	wlarc='${wl}'
+	archive_cmds='$CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -shared $pic_flag ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='${wl}'
+	  archive_cmds='$CC -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	  $CC -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands `-z linker_flag'.  GCC discards it without `$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test "$GCC" = yes; then
+	  whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+	else
+	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test "x$host_vendor" = xsequent; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	archive_cmds='$CC -G ${wl}-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  reload_cmds='$CC -r -o $output$reload_objs'
+	  hardcode_direct=no
+        ;;
+	motorola)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	hardcode_shlibpath_var=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag='${wl}-z,text'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We can NOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      no_undefined_flag='${wl}-z,text'
+      allow_undefined_flag='${wl}-z,nodefs'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='${wl}-R,$libdir'
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      export_dynamic_flag_spec='${wl}-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test "$GCC" = yes; then
+	archive_cmds='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+
+    if test x$host_vendor = xsni; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	export_dynamic_flag_spec='${wl}-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+$as_echo "$ld_shlibs" >&6; }
+test "$ld_shlibs" = no && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl
+	  pic_flag=$lt_prog_compiler_pic
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag
+	  allow_undefined_flag=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc=no
+	  else
+	    lt_cv_archive_cmds_need_lc=yes
+	  fi
+	  allow_undefined_flag=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
+      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
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+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+if test "$GCC" = yes; then
+  case $host_os in
+    darwin*) lt_awk_arg="/^libraries:/,/LR/" ;;
+    *) lt_awk_arg="/^libraries:/" ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq="s,=\([A-Za-z]:\),\1,g" ;;
+    *) lt_sed_strip_eq="s,=/,/,g" ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary.
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
+    else
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS=" "; FS="/|\n";} {
+  lt_foo="";
+  lt_count=0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo="/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[lt_foo]++; }
+  if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's,/\([A-Za-z]:\),\1,g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+    library_names_spec='${libname}.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec="$LIB"
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Add ABI-specific directories to the system library path.
+  sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+   test -n "$runpath_var" ||
+   test "X$hardcode_automatic" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$hardcode_direct" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, )" != no &&
+     test "$hardcode_minus_L" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+$as_echo "$hardcode_action" >&6; }
+
+if test "$hardcode_action" = relink ||
+   test "$inherit_rpath" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+  if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen="load_add_on"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen="LoadLibrary"
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen="dlopen"
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+  # if libdl is installed we need to link against it
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+
+    lt_cv_dlopen="dyld"
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+    ;;
+
+  *)
+    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes; then :
+  lt_cv_dlopen="shl_load"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+$as_echo_n "checking for shl_load in -ldld... " >&6; }
+if ${ac_cv_lib_dld_shl_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int
+main ()
+{
+return shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_shl_load=yes
+else
+  ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
+  lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-ldld"
+else
+  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+$as_echo_n "checking for dlopen in -lsvld... " >&6; }
+if ${ac_cv_lib_svld_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_svld_dlopen=yes
+else
+  ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+$as_echo_n "checking for dld_link in -ldld... " >&6; }
+if ${ac_cv_lib_dld_dld_link+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int
+main ()
+{
+return dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_dld_link=yes
+else
+  ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  else
+    enable_dlopen=no
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS="$CPPFLAGS"
+    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS="$LDFLAGS"
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS="$LIBS"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+$as_echo_n "checking whether a program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+$as_echo "$lt_cv_dlopen_self" >&6; }
+
+    if test "x$lt_cv_dlopen_self" = xyes; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self_static+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test "$cross_compiling" = yes; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisbility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined(__GNUC__) && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest${ac_exeext} 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+$as_echo "$lt_cv_dlopen_self_static" >&6; }
+    fi
+
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+striplib=
+old_striplib=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+$as_echo_n "checking whether stripping libraries is possible... " >&6; }
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP" ; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+    ;;
+  *)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+  # Report which library types will actually be built
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+$as_echo_n "checking if libtool supports shared libraries... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+$as_echo "$can_build_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+$as_echo_n "checking whether to build shared libraries... " >&6; }
+  test "$can_build_shared" = "no" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test "$enable_shared" = yes && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[4-9]*)
+    if test "$host_cpu" != ia64 && test "$aix_use_runtimelinking" = no ; then
+      test "$enable_shared" = yes && enable_static=no
+    fi
+    ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+$as_echo "$enable_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+$as_echo_n "checking whether to build static libraries... " >&6; }
+  # Make sure either enable_shared or enable_static is yes.
+  test "$enable_shared" = yes || enable_static=yes
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+$as_echo "$enable_static" >&6; }
+
+
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC="$lt_save_CC"
+
+      if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
+    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
+    (test "X$CXX" != "Xg++"))) ; then
+  ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if ${ac_cv_prog_CXXCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+  CXXCPP=$ac_cv_prog_CXXCPP
+else
+  ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+  _lt_caught_CXX_error=yes
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+compiler_needs_object_CXX=no
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_direct_absolute_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_shlibpath_var_CXX=unsupported
+hardcode_automatic_CXX=no
+inherit_rpath_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+reload_flag_CXX=$reload_flag
+reload_cmds_CXX=$reload_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test "$_lt_caught_CXX_error" != yes; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+  # save warnings/boilerplate of simple test code
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+  ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  compiler_CXX=$CC
+  for cc_temp in $compiler""; do
+  case $cc_temp in
+    compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+    distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+    \-*) ;;
+    *) break;;
+  esac
+done
+cc_basename=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test "$GXX" = yes; then
+      lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+    else
+      lt_prog_compiler_no_builtin_flag_CXX=
+    fi
+
+    if test "$GXX" = yes; then
+      # Set up default GNU C++ configuration
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test "$withval" = no || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test "$GCC" = yes; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD="$ac_prog"
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test "$with_gnu_ld" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS="$lt_save_ifs"
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD="$ac_dir/$ac_prog"
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test "$with_gnu_ld" != no && break
+	;;
+      *)
+	test "$with_gnu_ld" != yes && break
+	;;
+      esac
+    fi
+  done
+  IFS="$lt_save_ifs"
+else
+  lt_cv_path_LD="$LD" # Let the user override the test with a path.
+fi
+fi
+
+LD="$lt_cv_path_LD"
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test "$with_gnu_ld" = yes; then
+        archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+
+        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+        export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='${wl}'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+        else
+          whole_archive_flag_spec_CXX=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+    ld_shlibs_CXX=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+      aix[4-9]*)
+        if test "$host_cpu" = ia64; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=""
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # need to do runtime linking.
+          case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        archive_cmds_CXX=''
+        hardcode_direct_CXX=yes
+        hardcode_direct_absolute_CXX=yes
+        hardcode_libdir_separator_CXX=':'
+        link_all_deplibs_CXX=yes
+        file_list_spec_CXX='${wl}-f,'
+
+        if test "$GXX" = yes; then
+          case $host_os in aix4.[012]|aix4.[012].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`${CC} -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    hardcode_direct_CXX=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    hardcode_minus_L_CXX=yes
+	    hardcode_libdir_flag_spec_CXX='-L$libdir'
+	    hardcode_libdir_separator_CXX=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test "$aix_use_runtimelinking" = yes; then
+	    shared_flag="$shared_flag "'${wl}-G'
+	  fi
+        else
+          # not using gcc
+          if test "$host_cpu" = ia64; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test "$aix_use_runtimelinking" = yes; then
+	      shared_flag='${wl}-G'
+	    else
+	      shared_flag='${wl}-bM:SRE'
+	    fi
+          fi
+        fi
+
+        export_dynamic_flag_spec_CXX='${wl}-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        always_export_symbols_CXX=yes
+        if test "$aix_use_runtimelinking" = yes; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          allow_undefined_flag_CXX='-berok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+          hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+
+          archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags `if test "x${allow_undefined_flag}" != "x"; then func_echo_all "${wl}${allow_undefined_flag}"; else :; fi` '"\${wl}$exp_sym_flag:\$export_symbols $shared_flag"
+        else
+          if test "$host_cpu" = ia64; then
+	    hardcode_libdir_flag_spec_CXX='${wl}-R $libdir:/usr/lib:/lib'
+	    allow_undefined_flag_CXX="-z nodefs"
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\${wl}$no_entry_flag"' $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    if test "${lt_cv_aix_libpath+set}" = set; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath__CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath__CXX"; then
+    lt_cv_aix_libpath__CXX="/usr/lib:/lib"
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    no_undefined_flag_CXX=' ${wl}-bernotok'
+	    allow_undefined_flag_CXX=' ${wl}-berok'
+	    if test "$with_gnu_ld" = yes; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      whole_archive_flag_spec_CXX='$convenience'
+	    fi
+	    archive_cmds_need_lc_CXX=yes
+	    # This is similar to how AIX traditionally builds its shared
+	    # libraries.
+	    archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs ${wl}-bnoentry $compiler_flags ${wl}-bE:$export_symbols${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  allow_undefined_flag_CXX=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  ld_shlibs_CXX=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX=' '
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=yes
+	  file_list_spec_CXX='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=".dll"
+	  # FIXME: Setting linknames here is a bad hack.
+	  archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-dll~linknames='
+	  archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      $SED -n -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' -e '1\\\!p' < $export_symbols > $output_objdir/$soname.exp;
+	    else
+	      $SED -e 's/\\\\\\\(.*\\\\\\\)/-link\\\ -EXPORT:\\\\\\\1/' < $export_symbols > $output_objdir/$soname.exp;
+	    fi~
+	    $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+	    linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true'
+	  enable_shared_with_static_runtimes_CXX=yes
+	  # Don't use ranlib
+	  old_postinstall_cmds_CXX='chmod 644 $oldlib'
+	  postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~
+	    lt_tool_outputfile="@TOOL_OUTPUT@"~
+	    case $lt_outputfile in
+	      *.exe|*.EXE) ;;
+	      *)
+		lt_outputfile="$lt_outputfile.exe"
+		lt_tool_outputfile="$lt_tool_outputfile.exe"
+		;;
+	    esac~
+	    func_to_tool_file "$lt_outputfile"~
+	    if test "$MANIFEST_TOOL" != ":" && test -f "$lt_outputfile.manifest"; then
+	      $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+	      $RM "$lt_outputfile.manifest";
+	    fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  hardcode_libdir_flag_spec_CXX='-L$libdir'
+	  export_dynamic_flag_spec_CXX='${wl}--export-all-symbols'
+	  allow_undefined_flag_CXX=unsupported
+	  always_export_symbols_CXX=no
+	  enable_shared_with_static_runtimes_CXX=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file (1st line
+	    # is EXPORTS), use it as is; otherwise, prepend...
+	    archive_expsym_cmds_CXX='if test "x`$SED 1q $export_symbols`" = xEXPORTS; then
+	      cp $export_symbols $output_objdir/$soname.def;
+	    else
+	      echo EXPORTS > $output_objdir/$soname.def;
+	      cat $export_symbols >> $output_objdir/$soname.def;
+	    fi~
+	    $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname ${wl}--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    ld_shlibs_CXX=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc_CXX=no
+  hardcode_direct_CXX=no
+  hardcode_automatic_CXX=yes
+  hardcode_shlibpath_var_CXX=unsupported
+  if test "$lt_cv_ld_force_load" = "yes"; then
+    whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience ${wl}-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec_CXX=''
+  fi
+  link_all_deplibs_CXX=yes
+  allow_undefined_flag_CXX="$_lt_dar_allow_undefined"
+  case $cc_basename in
+     ifort*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test "$_lt_dar_can_shared" = "yes"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod${_lt_dsymutil}"
+    module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dsymutil}"
+    archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring ${_lt_dar_single_mod}${_lt_dar_export_syms}${_lt_dsymutil}"
+    module_expsym_cmds_CXX="sed -e 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags${_lt_dar_export_syms}${_lt_dsymutil}"
+       if test "$lt_cv_apple_cc_single_mod" != "yes"; then
+      archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dsymutil}"
+      archive_expsym_cmds_CXX="sed 's,^,_,' < \$export_symbols > \$output_objdir/\${libname}-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \${lib}-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \${lib}-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring${_lt_dar_export_syms}${_lt_dsymutil}"
+    fi
+
+  else
+  ld_shlibs_CXX=no
+  fi
+
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        ld_shlibs_CXX=no
+        ;;
+
+      freebsd-elf*)
+        archive_cmds_need_lc_CXX=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        ld_shlibs_CXX=yes
+        ;;
+
+      gnu*)
+        ;;
+
+      haiku*)
+        archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+        link_all_deplibs_CXX=yes
+        ;;
+
+      hpux9*)
+        hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+        hardcode_libdir_separator_CXX=:
+        export_dynamic_flag_spec_CXX='${wl}-E'
+        hardcode_direct_CXX=yes
+        hardcode_minus_L_CXX=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            ld_shlibs_CXX=no
+            ;;
+          aCC*)
+            archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test "$GXX" = yes; then
+              archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              ld_shlibs_CXX=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test $with_gnu_ld = no; then
+	  hardcode_libdir_flag_spec_CXX='${wl}+b ${wl}$libdir'
+	  hardcode_libdir_separator_CXX=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      export_dynamic_flag_spec_CXX='${wl}-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            hardcode_direct_CXX=no
+            hardcode_shlibpath_var_CXX=no
+            ;;
+          *)
+            hardcode_direct_CXX=yes
+            hardcode_direct_absolute_CXX=yes
+            hardcode_minus_L_CXX=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        archive_cmds_CXX='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test $with_gnu_ld = no; then
+	        case $host_cpu in
+	          hppa*64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            archive_cmds_CXX='$CC -shared -nostdlib $pic_flag ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[3-9]*)
+	hardcode_direct_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	export_dynamic_flag_spec_CXX='${wl}-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	archive_expsym_cmds_CXX='sed "s,^,_," $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags ${wl}-h,$soname ${wl}--retain-symbols-file,$output_objdir/$soname.expsym ${wl}--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test "$GXX" = yes; then
+	      if test "$with_gnu_ld" = no; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+	      else
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` -o $lib'
+	      fi
+	    fi
+	    link_all_deplibs_CXX=yes
+	    ;;
+        esac
+        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+        hardcode_libdir_separator_CXX=:
+        inherit_rpath_CXX=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+		archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    archive_cmds_need_lc_CXX=no
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    whole_archive_flag_spec_CXX='${wl}--whole-archive$convenience ${wl}--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
+	      prelink_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+		compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      old_archive_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+		$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+		$RANLIB $oldlib'
+	      archive_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      archive_expsym_cmds_CXX='tpldir=Template.dir~
+		rm -rf $tpldir~
+		$CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+		$CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname -o $lib'
+	      archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname ${wl}-retain-symbols-file ${wl}$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    hardcode_libdir_flag_spec_CXX='${wl}--rpath ${wl}$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    whole_archive_flag_spec_CXX='${wl}--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+	    export_dynamic_flag_spec_CXX='${wl}--export-dynamic'
+	    archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
+	    if test "x$supports_anon_versioning" = xyes; then
+	      archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
+		cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+		echo "local: *; };" >> $output_objdir/$libname.ver~
+		$CC -qmkshrobj $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-version-script ${wl}$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      no_undefined_flag_CXX=' -zdefs'
+	      archive_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      archive_expsym_cmds_CXX='$CC -G${allow_undefined_flag} -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file ${wl}$export_symbols'
+	      hardcode_libdir_flag_spec_CXX='-R$libdir'
+	      whole_archive_flag_spec_CXX='${wl}--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` ${wl}--no-whole-archive'
+	      compiler_needs_object_CXX=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	ld_shlibs_CXX=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  archive_cmds_CXX='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  hardcode_libdir_flag_spec_CXX='-R$libdir'
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        ld_shlibs_CXX=yes
+	;;
+
+      openbsd2*)
+        # C++ shared libraries are fairly broken
+	ld_shlibs_CXX=no
+	;;
+
+      openbsd*)
+	if test -f /usr/libexec/ld.so; then
+	  hardcode_direct_CXX=yes
+	  hardcode_shlibpath_var_CXX=no
+	  hardcode_direct_absolute_CXX=yes
+	  archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+	    archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-retain-symbols-file,$export_symbols -o $lib'
+	    export_dynamic_flag_spec_CXX='${wl}-E'
+	    whole_archive_flag_spec_CXX="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  ld_shlibs_CXX=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\${tempext}\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    hardcode_libdir_flag_spec_CXX='${wl}-rpath,$libdir'
+	    hardcode_libdir_separator_CXX=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && func_echo_all "${wl}-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+		;;
+	      *)
+	        allow_undefined_flag_CXX=' -expect_unresolved \*'
+	        archive_cmds_CXX='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib'
+	        archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+	          echo "-hidden">> $lib.exp~
+	          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname ${wl}-input ${wl}$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry ${output_objdir}/so_locations -o $lib~
+	          $RM $lib.exp'
+	        hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+		;;
+	    esac
+
+	    hardcode_libdir_separator_CXX=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      allow_undefined_flag_CXX=' ${wl}-expect_unresolved ${wl}\*'
+	      case $host in
+	        osf3*)
+	          archive_cmds_CXX='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	        *)
+	          archive_cmds_CXX='$CC -shared $pic_flag -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && func_echo_all "${wl}-set_version ${wl}$verstring"` ${wl}-update_registry ${wl}${output_objdir}/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      hardcode_libdir_flag_spec_CXX='${wl}-rpath ${wl}$libdir'
+	      hardcode_libdir_separator_CXX=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      ld_shlibs_CXX=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            archive_cmds_need_lc_CXX=yes
+	    no_undefined_flag_CXX=' -zdefs'
+	    archive_cmds_CXX='$CC -G${allow_undefined_flag}  -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+	      $CC -G${allow_undefined_flag} ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    hardcode_libdir_flag_spec_CXX='-R$libdir'
+	    hardcode_shlibpath_var_CXX=no
+	    case $host_os in
+	      solaris2.[0-5] | solaris2.[0-5].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands `-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    link_all_deplibs_CXX=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test "$GXX" = yes && test "$with_gnu_ld" = no; then
+	      no_undefined_flag_CXX=' ${wl}-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -shared $pic_flag -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require `-G' NOT `-shared' on this
+	        # platform.
+	        archive_cmds_CXX='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
+	        archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+		  $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      hardcode_libdir_flag_spec_CXX='${wl}-R $wl$libdir'
+	      case $host_os in
+		solaris2.[0-5] | solaris2.[0-5].*) ;;
+		*)
+		  whole_archive_flag_spec_CXX='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag_CXX='${wl}-z,text'
+      archive_cmds_need_lc_CXX=no
+      hardcode_shlibpath_var_CXX=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We can NOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	no_undefined_flag_CXX='${wl}-z,text'
+	allow_undefined_flag_CXX='${wl}-z,nodefs'
+	archive_cmds_need_lc_CXX=no
+	hardcode_shlibpath_var_CXX=no
+	hardcode_libdir_flag_spec_CXX='${wl}-R,$libdir'
+	hardcode_libdir_separator_CXX=':'
+	link_all_deplibs_CXX=yes
+	export_dynamic_flag_spec_CXX='${wl}-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    archive_cmds_CXX='$CC -G ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -G ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
+	      '"$old_archive_cmds_CXX"
+	    reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
+	      '"$reload_cmds_CXX"
+	    ;;
+	  *)
+	    archive_cmds_CXX='$CC -shared ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    archive_expsym_cmds_CXX='$CC -shared ${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    ld_shlibs_CXX=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        ld_shlibs_CXX=no
+        ;;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+    test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+    GCC_CXX="$GXX"
+    LD_CXX="$LD"
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    # Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case ${prev}${p} in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test $p = "-L" ||
+          test $p = "-R"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test "$pre_test_object_deps_done" = no; then
+	 case ${prev} in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$compiler_lib_search_path_CXX"; then
+	     compiler_lib_search_path_CXX="${prev}${p}"
+	   else
+	     compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} ${prev}${p}"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$postdeps_CXX"; then
+	   postdeps_CXX="${prev}${p}"
+	 else
+	   postdeps_CXX="${postdeps_CXX} ${prev}${p}"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test "$pre_test_object_deps_done" = no; then
+	 if test -z "$predep_objects_CXX"; then
+	   predep_objects_CXX="$p"
+	 else
+	   predep_objects_CXX="$predep_objects_CXX $p"
+	 fi
+       else
+	 if test -z "$postdep_objects_CXX"; then
+	   postdep_objects_CXX="$p"
+	 else
+	   postdep_objects_CXX="$postdep_objects_CXX $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+case $host_os in
+interix[3-9]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  predep_objects_CXX=
+  postdep_objects_CXX=
+  postdeps_CXX=
+  ;;
+
+linux*)
+  case `$CC -V 2>&1 | sed 5q` in
+  *Sun\ C*)
+    # Sun C++ 5.9
+
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    if test "$solaris_use_stlport4" != yes; then
+      postdeps_CXX='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+
+solaris*)
+  case $cc_basename in
+  CC* | sunCC*)
+    # The more standards-conforming stlport4 library is
+    # incompatible with the Cstd library. Avoid specifying
+    # it if it's in CXXFLAGS. Ignore libCrun as
+    # -library=stlport4 depends on it.
+    case " $CXX $CXXFLAGS " in
+    *" -library=stlport4 "*)
+      solaris_use_stlport4=yes
+      ;;
+    esac
+
+    # Adding this requires a known-good setup of shared libraries for
+    # Sun compiler versions before 5.6, else PIC objects from an old
+    # archive will be linked into the output, leading to subtle bugs.
+    if test "$solaris_use_stlport4" != yes; then
+      postdeps_CXX='-library=Cstd -library=Crun'
+    fi
+    ;;
+  esac
+  ;;
+esac
+
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+ compiler_lib_search_dirs_CXX=
+if test -n "${compiler_lib_search_path_CXX}"; then
+ compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | ${SED} -e 's! -L! !g' -e 's!^ !!'`
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+
+  # C++ specific cases for pic, static, wl, etc.
+  if test "$GXX" = yes; then
+    lt_prog_compiler_wl_CXX='-Wl,'
+    lt_prog_compiler_static_CXX='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test "$host_cpu" = ia64; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static_CXX='-Bstatic'
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic_CXX='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the `-m68020' flag to GCC prevents building anything better,
+            # like `-m68040'.
+            lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic_CXX='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      lt_prog_compiler_pic_CXX=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static_CXX=
+      ;;
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic_CXX=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	lt_prog_compiler_pic_CXX='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic_CXX='-fPIC -shared'
+      ;;
+    *)
+      lt_prog_compiler_pic_CXX='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[4-9]*)
+	# All AIX code is PIC.
+	if test "$host_cpu" = ia64; then
+	  # AIX 5 now supports IA64 processor
+	  lt_prog_compiler_static_CXX='-Bstatic'
+	else
+	  lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
+	    if test "$host_cpu" != ia64; then
+	      lt_prog_compiler_pic_CXX='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='${wl}-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      lt_prog_compiler_pic_CXX='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64 which still supported -KPIC.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fPIC'
+	    lt_prog_compiler_static_CXX='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-fpic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-qpic'
+	    lt_prog_compiler_static_CXX='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      lt_prog_compiler_pic_CXX='-KPIC'
+	      lt_prog_compiler_static_CXX='-Bstatic'
+	      lt_prog_compiler_wl_CXX='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    lt_prog_compiler_pic_CXX='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd*)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        lt_prog_compiler_pic_CXX='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    lt_prog_compiler_wl_CXX='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    lt_prog_compiler_pic_CXX=
+	    lt_prog_compiler_static_CXX='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    lt_prog_compiler_wl_CXX='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    lt_prog_compiler_pic_CXX='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    lt_prog_compiler_pic_CXX='-pic'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    lt_prog_compiler_pic_CXX='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    lt_prog_compiler_wl_CXX='-Wl,'
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    lt_prog_compiler_static_CXX='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    lt_prog_compiler_pic_CXX='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	lt_prog_compiler_can_build_shared_CXX=no
+	;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms which do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic_CXX=
+    ;;
+  *)
+    lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; }
+lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works_CXX=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works_CXX=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+
+if test x"$lt_cv_prog_compiler_pic_works_CXX" = xyes; then
+    case $lt_prog_compiler_pic_CXX in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+     esac
+else
+    lt_prog_compiler_pic_CXX=
+     lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works_CXX=no
+   save_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works_CXX=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works_CXX=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS="$save_LDFLAGS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+
+if test x"$lt_cv_prog_compiler_static_works_CXX" = xyes; then
+    :
+else
+    lt_prog_compiler_static_CXX=
+fi
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o_CXX=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o_CXX=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+
+hard_links="nottested"
+if test "$lt_cv_prog_compiler_c_o_CXX" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test "$hard_links" = no; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  case $host_os in
+  aix[4-9]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to AIX nm, but means don't demangle with GNU nm
+    # Also, AIX nm treats weak defined symbols like other global defined
+    # symbols, whereas GNU nm marks them as "W".
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    else
+      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    export_symbols_cmds_CXX="$ltdll_cmds"
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*)
+      exclude_expsyms_CXX='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
+    *)
+      export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms_CXX='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+      ;;
+    esac
+    ;;
+  *)
+    export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+test "$ld_shlibs_CXX" = no && can_build_shared=no
+
+with_gnu_ld_CXX=$with_gnu_ld
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc_CXX=yes
+
+  if test "$enable_shared" = yes && test "$GCC" = yes; then
+    case $archive_cmds_CXX in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl_CXX
+	  pic_flag=$lt_prog_compiler_pic_CXX
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+	  allow_undefined_flag_CXX=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc_CXX=no
+	  else
+	    lt_cv_archive_cmds_need_lc_CXX=yes
+	  fi
+	  allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+      archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=".so"
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='${libname}${release}${shared_ext}$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test "$host_cpu" = ia64; then
+    # AIX 5 supports IA64
+    library_names_spec='${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext}$versuffix $libname${shared_ext}'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line `#! .'.  This would cause the generated library to
+    # depend on `.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | ${CC} -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # AIX (on Power*) has no versioning support, so currently we can not hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    if test "$aix_use_runtimelinking" = yes; then
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    else
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='${libname}${release}.a $libname.a'
+      soname_spec='${libname}${release}${shared_ext}$major'
+    fi
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='${libname}${shared_ext}'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=".dll"
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/cyg/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo ${libname} | sed -e 's/^lib/pw/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+    library_names_spec='${libname}.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec="$LIB"
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \${file}`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\${base_file}'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext} $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${major}$shared_ext ${libname}$shared_ext'
+  soname_spec='${libname}${release}${major}$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname$shared_ext'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='${libname}${release}${shared_ext}$versuffix $libname${shared_ext}$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    if test "X$HPUX_IA64_MODE" = X32; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+    fi
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test "$lt_cv_prog_gnu_ld" = yes; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${release}${shared_ext} $libname${shared_ext}'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib${libsuff} /lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/usr/lib${libsuff} /lib${libsuff}"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Add ABI-specific directories to the system library path.
+  sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+  # Append ld.so.conf contents to the search path
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
+    soname_spec='${libname}${release}${shared_ext}$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec="/usr/lib"
+  need_lib_prefix=no
+  # Some older versions of OpenBSD (3.3 at least) *do* need versioned libs.
+  case $host_os in
+    openbsd3.3 | openbsd3.3.*)	need_version=yes ;;
+    *)				need_version=no  ;;
+  esac
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
+    case $host_os in
+      openbsd2.[89] | openbsd2.[89].*)
+	shlibpath_overrides_runpath=no
+	;;
+      *)
+	shlibpath_overrides_runpath=yes
+	;;
+      esac
+  else
+    shlibpath_overrides_runpath=yes
+  fi
+  ;;
+
+os2*)
+  libname_spec='$name'
+  shrext_cmds=".dll"
+  need_lib_prefix=no
+  library_names_spec='$libname${shared_ext} $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}${shared_ext}$major'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${shared_ext}$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec ;then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname${shared_ext}.$versuffix $libname${shared_ext}.$major $libname${shared_ext}'
+    soname_spec='$libname${shared_ext}.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext} $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test "$with_gnu_ld" = yes; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test "$dynamic_linker" = no && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test "$GCC" = yes; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test "${lt_cv_sys_lib_search_path_spec+set}" = set; then
+  sys_lib_search_path_spec="$lt_cv_sys_lib_search_path_spec"
+fi
+if test "${lt_cv_sys_lib_dlsearch_path_spec+set}" = set; then
+  sys_lib_dlsearch_path_spec="$lt_cv_sys_lib_dlsearch_path_spec"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" ||
+   test -n "$runpath_var_CXX" ||
+   test "X$hardcode_automatic_CXX" = "Xyes" ; then
+
+  # We can hardcode non-existent directories.
+  if test "$hardcode_direct_CXX" != no &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" != no &&
+     test "$hardcode_minus_L_CXX" != no; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action_CXX=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action_CXX=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action_CXX=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+$as_echo "$hardcode_action_CXX" >&6; }
+
+if test "$hardcode_action_CXX" = relink ||
+   test "$inherit_rpath_CXX" = yes; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test "$_lt_caught_CXX_error" != yes
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+        ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+# Extract the first word of "rm", so it can be a program name with args.
+set dummy rm; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RM"; then
+  ac_cv_prog_RM="$RM" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RM="rm"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RM=$ac_cv_prog_RM
+if test -n "$RM"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RM" >&5
+$as_echo "$RM" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Extract the first word of "cpp", so it can be a program name with args.
+set dummy cpp; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ASCPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ASCPP"; then
+  ac_cv_prog_ASCPP="$ASCPP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ASCPP="cpp"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ASCPP=$ac_cv_prog_ASCPP
+if test -n "$ASCPP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ASCPP" >&5
+$as_echo "$ASCPP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AR" = x; then
+    AR="ar"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing strerror" >&5
+$as_echo_n "checking for library containing strerror... " >&6; }
+if ${ac_cv_search_strerror+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char strerror ();
+int
+main ()
+{
+return strerror ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' cposix; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_strerror=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_strerror+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_strerror+:} false; then :
+
+else
+  ac_cv_search_strerror=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
+$as_echo "$ac_cv_search_strerror" >&6; }
+ac_res=$ac_cv_search_strerror
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
+
+
+
+
+
+
+        if test -n "$PYTHON"; then
+      # If the user set $PYTHON, use it and don't search something else.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $PYTHON version is >= 2.4" >&5
+$as_echo_n "checking whether $PYTHON version is >= 2.4... " >&6; }
+      prog="import sys
+# split strings by '.' and convert to numeric.  Append some zeros
+# because we need at least 4 digits for the hex conversion.
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '2.4'.split('.'))) + [0, 0, 0]
+minverhex = 0
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[i]
+sys.exit(sys.hexversion < minverhex)"
+  if { echo "$as_me:$LINENO: $PYTHON -c "$prog"" >&5
+   ($PYTHON -c "$prog") >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+			       as_fn_error $? "Python interpreter is too old" "$LINENO" 5
+fi
+      am_display_PYTHON=$PYTHON
+    else
+      # Otherwise, try each interpreter until we find one that satisfies
+      # VERSION.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a Python interpreter with version >= 2.4" >&5
+$as_echo_n "checking for a Python interpreter with version >= 2.4... " >&6; }
+if ${am_cv_pathless_PYTHON+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+	for am_cv_pathless_PYTHON in python python2 python3 python3.3 python3.2 python3.1 python3.0 python2.7  python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0 none; do
+	  test "$am_cv_pathless_PYTHON" = none && break
+	  prog="import sys
+# split strings by '.' and convert to numeric.  Append some zeros
+# because we need at least 4 digits for the hex conversion.
+# map returns an iterator in Python 3.0 and a list in 2.x
+minver = list(map(int, '2.4'.split('.'))) + [0, 0, 0]
+minverhex = 0
+# xrange is not present in Python 3.0 and range returns an iterator
+for i in list(range(0, 4)): minverhex = (minverhex << 8) + minver[i]
+sys.exit(sys.hexversion < minverhex)"
+  if { echo "$as_me:$LINENO: $am_cv_pathless_PYTHON -c "$prog"" >&5
+   ($am_cv_pathless_PYTHON -c "$prog") >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }; then :
+  break
+fi
+	done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_pathless_PYTHON" >&5
+$as_echo "$am_cv_pathless_PYTHON" >&6; }
+      # Set $PYTHON to the absolute path of $am_cv_pathless_PYTHON.
+      if test "$am_cv_pathless_PYTHON" = none; then
+	PYTHON=:
+      else
+        # Extract the first word of "$am_cv_pathless_PYTHON", so it can be a program name with args.
+set dummy $am_cv_pathless_PYTHON; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PYTHON+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PYTHON in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PYTHON="$PYTHON" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PYTHON="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PYTHON=$ac_cv_path_PYTHON
+if test -n "$PYTHON"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON" >&5
+$as_echo "$PYTHON" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+      fi
+      am_display_PYTHON=$am_cv_pathless_PYTHON
+    fi
+
+
+  if test "$PYTHON" = :; then
+
+    :
+
+  else
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $am_display_PYTHON version" >&5
+$as_echo_n "checking for $am_display_PYTHON version... " >&6; }
+if ${am_cv_python_version+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  am_cv_python_version=`$PYTHON -c "import sys; sys.stdout.write(sys.version[:3])"`
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_version" >&5
+$as_echo "$am_cv_python_version" >&6; }
+  PYTHON_VERSION=$am_cv_python_version
+
+
+
+  PYTHON_PREFIX='${prefix}'
+
+  PYTHON_EXEC_PREFIX='${exec_prefix}'
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $am_display_PYTHON platform" >&5
+$as_echo_n "checking for $am_display_PYTHON platform... " >&6; }
+if ${am_cv_python_platform+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_platform" >&5
+$as_echo "$am_cv_python_platform" >&6; }
+  PYTHON_PLATFORM=$am_cv_python_platform
+
+
+  # Just factor out some code duplication.
+  am_python_setup_sysconfig="\
+import sys
+# Prefer sysconfig over distutils.sysconfig, for better compatibility
+# with python 3.x.  See automake bug#10227.
+try:
+    import sysconfig
+except ImportError:
+    can_use_sysconfig = 0
+else:
+    can_use_sysconfig = 1
+# Can't use sysconfig in CPython 2.7, since it's broken in virtualenvs:
+# <https://github.com/pypa/virtualenv/issues/118>
+try:
+    from platform import python_implementation
+    if python_implementation() == 'CPython' and sys.version[:3] == '2.7':
+        can_use_sysconfig = 0
+except ImportError:
+    pass"
+
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $am_display_PYTHON script directory" >&5
+$as_echo_n "checking for $am_display_PYTHON script directory... " >&6; }
+if ${am_cv_python_pythondir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$prefix" = xNONE
+     then
+       am_py_prefix=$ac_default_prefix
+     else
+       am_py_prefix=$prefix
+     fi
+     am_cv_python_pythondir=`$PYTHON -c "
+$am_python_setup_sysconfig
+if can_use_sysconfig:
+    sitedir = sysconfig.get_path('purelib', vars={'base':'$am_py_prefix'})
+else:
+    from distutils import sysconfig
+    sitedir = sysconfig.get_python_lib(0, 0, prefix='$am_py_prefix')
+sys.stdout.write(sitedir)"`
+     case $am_cv_python_pythondir in
+     $am_py_prefix*)
+       am__strip_prefix=`echo "$am_py_prefix" | sed 's|.|.|g'`
+       am_cv_python_pythondir=`echo "$am_cv_python_pythondir" | sed "s,^$am__strip_prefix,$PYTHON_PREFIX,"`
+       ;;
+     *)
+       case $am_py_prefix in
+         /usr|/System*) ;;
+         *)
+	  am_cv_python_pythondir=$PYTHON_PREFIX/lib/python$PYTHON_VERSION/site-packages
+	  ;;
+       esac
+       ;;
+     esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_pythondir" >&5
+$as_echo "$am_cv_python_pythondir" >&6; }
+  pythondir=$am_cv_python_pythondir
+
+
+
+  pkgpythondir=\${pythondir}/$PACKAGE
+
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $am_display_PYTHON extension module directory" >&5
+$as_echo_n "checking for $am_display_PYTHON extension module directory... " >&6; }
+if ${am_cv_python_pyexecdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$exec_prefix" = xNONE
+     then
+       am_py_exec_prefix=$am_py_prefix
+     else
+       am_py_exec_prefix=$exec_prefix
+     fi
+     am_cv_python_pyexecdir=`$PYTHON -c "
+$am_python_setup_sysconfig
+if can_use_sysconfig:
+    sitedir = sysconfig.get_path('platlib', vars={'platbase':'$am_py_prefix'})
+else:
+    from distutils import sysconfig
+    sitedir = sysconfig.get_python_lib(1, 0, prefix='$am_py_prefix')
+sys.stdout.write(sitedir)"`
+     case $am_cv_python_pyexecdir in
+     $am_py_exec_prefix*)
+       am__strip_prefix=`echo "$am_py_exec_prefix" | sed 's|.|.|g'`
+       am_cv_python_pyexecdir=`echo "$am_cv_python_pyexecdir" | sed "s,^$am__strip_prefix,$PYTHON_EXEC_PREFIX,"`
+       ;;
+     *)
+       case $am_py_exec_prefix in
+         /usr|/System*) ;;
+         *)
+	   am_cv_python_pyexecdir=$PYTHON_EXEC_PREFIX/lib/python$PYTHON_VERSION/site-packages
+	   ;;
+       esac
+       ;;
+     esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_pyexecdir" >&5
+$as_echo "$am_cv_python_pyexecdir" >&6; }
+  pyexecdir=$am_cv_python_pyexecdir
+
+
+
+  pkgpyexecdir=\${pyexecdir}/$PACKAGE
+
+
+
+    TS_MAN1_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=1 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+  TS_MAN3_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=3 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+  TS_MAN5_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=5 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+  TS_MAN8_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=8 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+
+  # If we have python, check if the Sphinx version looks OK.
+  if "$PYTHON" "$srcdir/doc/checkvers.py" --check-version; then :
+
+    sphinx_version_check=yes
+
+fi
+
+
+  fi
+
+
+
+
+
+# Extract the first word of "sphinx-build", so it can be a program name with args.
+set dummy sphinx-build; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_SPHINXBUILD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$SPHINXBUILD"; then
+  ac_cv_prog_SPHINXBUILD="$SPHINXBUILD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_SPHINXBUILD="sphinx-build"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_prog_SPHINXBUILD" && ac_cv_prog_SPHINXBUILD="false"
+fi
+fi
+SPHINXBUILD=$ac_cv_prog_SPHINXBUILD
+if test -n "$SPHINXBUILD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SPHINXBUILD" >&5
+$as_echo "$SPHINXBUILD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build man pages" >&5
+$as_echo_n "checking whether to build man pages... " >&6; }
+if test "x$sphinx_version_check" = "xyes" -a "x$SPHINXBUILD" != "xfalse"; then :
+
+   if true; then
+  BUILD_MANPAGES_TRUE=
+  BUILD_MANPAGES_FALSE='#'
+else
+  BUILD_MANPAGES_TRUE='#'
+  BUILD_MANPAGES_FALSE=
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+   if false; then
+  BUILD_MANPAGES_TRUE=
+  BUILD_MANPAGES_FALSE='#'
+else
+  BUILD_MANPAGES_TRUE='#'
+  BUILD_MANPAGES_FALSE=
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+
+# Do bison check by hand because we must do a version check.
+# Use YACC because it makes autotools shut up.
+BISON_MAJOR=2
+BISON_MINOR=4
+BISON_POINT=1
+# Extract the first word of "bison", so it can be a program name with args.
+set dummy bison; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_YACC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$YACC"; then
+  ac_cv_prog_YACC="$YACC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_YACC="bison"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+YACC=$ac_cv_prog_YACC
+if test -n "$YACC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $YACC" >&5
+$as_echo "$YACC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+if test -n "$YACC"; then :
+   bison_version_check=`$YACC --version 2>&1 | \
+        $SED -n '/bison/s/^[^0-9]*\([0-9][0-9.]*\).*$/\1/p' | \
+        $AWK "{ if (\\$1 > $BISON_MAJOR || (\\$1 == $BISON_MAJOR && (\\$2 > $BISON_MINOR || (\\$2 == $BISON_MINOR && (NR == 2 || \\$3 >= $BISON_POINT))))) print \"yes\"; else printf(\"version %d.%d.%d\",\\$1,\\$2,\\$3); }" FS=. \
+        `
+        if test "x$bison_version_check" != "xyes"; then :
+   YACC=''
+            if test -z "$bison_version_check"; then :
+  bison_version_check='no version data'
+
+fi
+
+
+fi
+
+else
+   YACC=''
+        bison_version_check="nothing"
+
+
+fi
+# Check lex/flex by hand because we need flex of a sufficient version.
+FLEX_MAJOR=2
+FLEX_MINOR=5
+FLEX_POINT=33
+for ac_prog in flex lex
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LEX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LEX"; then
+  ac_cv_prog_LEX="$LEX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LEX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LEX=$ac_cv_prog_LEX
+if test -n "$LEX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LEX" >&5
+$as_echo "$LEX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$LEX" && break
+done
+test -n "$LEX" || LEX=":"
+
+if test "x$LEX" != "x:"; then
+  cat >conftest.l <<_ACEOF
+%%
+a { ECHO; }
+b { REJECT; }
+c { yymore (); }
+d { yyless (1); }
+e { /* IRIX 6.5 flex 2.5.4 underquotes its yyless argument.  */
+    yyless ((input () != 0)); }
+f { unput (yytext[0]); }
+. { BEGIN INITIAL; }
+%%
+#ifdef YYTEXT_POINTER
+extern char *yytext;
+#endif
+int
+main (void)
+{
+  return ! yylex () + ! yywrap ();
+}
+_ACEOF
+{ { ac_try="$LEX conftest.l"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$LEX conftest.l") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking lex output file root" >&5
+$as_echo_n "checking lex output file root... " >&6; }
+if ${ac_cv_prog_lex_root+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+if test -f lex.yy.c; then
+  ac_cv_prog_lex_root=lex.yy
+elif test -f lexyy.c; then
+  ac_cv_prog_lex_root=lexyy
+else
+  as_fn_error $? "cannot find output from $LEX; giving up" "$LINENO" 5
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_root" >&5
+$as_echo "$ac_cv_prog_lex_root" >&6; }
+LEX_OUTPUT_ROOT=$ac_cv_prog_lex_root
+
+if test -z "${LEXLIB+set}"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking lex library" >&5
+$as_echo_n "checking lex library... " >&6; }
+if ${ac_cv_lib_lex+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+    ac_save_LIBS=$LIBS
+    ac_cv_lib_lex='none needed'
+    for ac_lib in '' -lfl -ll; do
+      LIBS="$ac_lib $ac_save_LIBS"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+`cat $LEX_OUTPUT_ROOT.c`
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_lex=$ac_lib
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      test "$ac_cv_lib_lex" != 'none needed' && break
+    done
+    LIBS=$ac_save_LIBS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lex" >&5
+$as_echo "$ac_cv_lib_lex" >&6; }
+  test "$ac_cv_lib_lex" != 'none needed' && LEXLIB=$ac_cv_lib_lex
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether yytext is a pointer" >&5
+$as_echo_n "checking whether yytext is a pointer... " >&6; }
+if ${ac_cv_prog_lex_yytext_pointer+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # POSIX says lex can declare yytext either as a pointer or an array; the
+# default is implementation-dependent.  Figure out which it is, since
+# not all implementations provide the %pointer and %array declarations.
+ac_cv_prog_lex_yytext_pointer=no
+ac_save_LIBS=$LIBS
+LIBS="$LEXLIB $ac_save_LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+  #define YYTEXT_POINTER 1
+`cat $LEX_OUTPUT_ROOT.c`
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_prog_lex_yytext_pointer=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_save_LIBS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_yytext_pointer" >&5
+$as_echo "$ac_cv_prog_lex_yytext_pointer" >&6; }
+if test $ac_cv_prog_lex_yytext_pointer = yes; then
+
+$as_echo "#define YYTEXT_POINTER 1" >>confdefs.h
+
+fi
+rm -f conftest.l $LEX_OUTPUT_ROOT.c
+
+fi
+if test -n "$LEX"; then :
+   flex_version_check=`$LEX --version 2>&1 | \
+        $SED -n '/flex/s/^[^0-9]*\([0-9][0-9.]*\)[^0-9]*.*$/\1/p' | \
+        $AWK "{ if (\\$1 > $FLEX_MAJOR || (\\$1 == $FLEX_MAJOR && (\\$2 > $FLEX_MINOR || (\\$2 == $FLEX_MINOR && (NR == 2 || \\$3 >= $FLEX_POINT))))) print \"yes\"; else printf(\"version %d.%d.%d\",\\$1,\\$2,\\$3); }" FS=. \
+        `
+        if test "x$flex_version_check" != "xyes"; then :
+   LEX=''
+            if test -z "$flex_version_check"; then :
+  flex_version_check='no version data'
+
+fi
+
+
+fi
+
+else
+   LEX=''
+        flex_version_check="nothing"
+
+
+fi
+
+if test "x$enable_wccp" = "xyes"; then :
+
+    if test -z "$LEX"  ; then :
+  as_fn_error $? "Need flex version $FLEX_MAJOR.$FLEX_MINOR.$FLEX_POINT or better to enable WCCP (found $flex_version_check)" "$LINENO" 5
+
+fi
+
+    if test -z "$YACC" ; then :
+  as_fn_error $? "Need bison version $BISON_MAJOR.$BISON_MINOR.$BISON_POINT or better to enable WCCP (found $bison_version_check)" "$LINENO" 5
+
+fi
+
+
+
+fi
+
+# Check for Perl and Doxygen
+# Extract the first word of "doxygen", so it can be a program name with args.
+set dummy doxygen; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_DOXYGEN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $DOXYGEN in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_DOXYGEN="$DOXYGEN" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_DOXYGEN="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+DOXYGEN=$ac_cv_path_DOXYGEN
+if test -n "$DOXYGEN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DOXYGEN" >&5
+$as_echo "$DOXYGEN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ # needed for Doxygen
+# Extract the first word of "perl", so it can be a program name with args.
+set dummy perl; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PERL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PERL in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PERL="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_PERL" && ac_cv_path_PERL="not found"
+  ;;
+esac
+fi
+PERL=$ac_cv_path_PERL
+if test -n "$PERL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5
+$as_echo "$PERL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+if test "x$PERL" = "xnot found"; then :
+  as_fn_error $? "check for perl failed. Have you installed perl?" "$LINENO" 5
+
+fi
+
+
+
+# Check if MakeMaker is available
+
+
+
+
+
+
+if test "x$PERL" != x; then
+  ax_perl_modules_failed=0
+  for ax_perl_module in 'ExtUtils::MakeMaker' ; do
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for perl module $ax_perl_module" >&5
+$as_echo_n "checking for perl module $ax_perl_module... " >&6; }
+
+    # Would be nice to log result here, but can't rely on autoconf internals
+    $PERL -e "use $ax_perl_module; exit" > /dev/null 2>&1
+    if test $? -ne 0; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; };
+      ax_perl_modules_failed=1
+   else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; };
+    fi
+  done
+
+  # Run optional shell commands
+  if test "$ax_perl_modules_failed" = 0; then
+    :
+     if true; then
+  BUILD_PERL_LIB_TRUE=
+  BUILD_PERL_LIB_FALSE='#'
+else
+  BUILD_PERL_LIB_TRUE='#'
+  BUILD_PERL_LIB_FALSE=
+fi
+
+  else
+    :
+     if false; then
+  BUILD_PERL_LIB_TRUE=
+  BUILD_PERL_LIB_FALSE='#'
+else
+  BUILD_PERL_LIB_TRUE='#'
+  BUILD_PERL_LIB_FALSE=
+fi
+
+
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: could not find perl" >&5
+$as_echo "$as_me: WARNING: could not find perl" >&2;}
+fi
+
+# Check for GNU-style -On optimization flags
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking checking whether to auto-set compiler optimization flags" >&5
+$as_echo_n "checking checking whether to auto-set compiler optimization flags... " >&6; }
+has_optimizer_flags=`echo "$CFLAGS $CXXFLAGS" | ${AWK} '$0 !~ /-O.?/{print "no"}'`
+if test "x${has_optimizer_flags}" = "xno"; then :
+
+                optimizing_flags='-O3'
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes ${optimizing_flags}" >&5
+$as_echo "yes ${optimizing_flags}" >&6; }
+
+else
+
+                has_optimizer_flags='yes'
+                optimizing_flags=''
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+fi
+
+ if  false ; then
+  BUILD_HAVE_LIBCXX_TRUE=
+  BUILD_HAVE_LIBCXX_FALSE='#'
+else
+  BUILD_HAVE_LIBCXX_TRUE='#'
+  BUILD_HAVE_LIBCXX_FALSE=
+fi
+
+
+case $host_os_def in
+  linux)
+    if test "x$ax_cv_c_compiler_vendor" = "xintel"; then :
+
+      # -Wall goes crazy, so turned these specific checks off for now:
+      #
+      #  111 is "statement is unreachable"
+      #  279 is "controlling expression is constant", triggered by our asserts
+      #  383 is "value copied to temporary, reference to temporary used"
+      #  444 is "destructor for base class is not virtual"
+      #  522 is "function "xyz" redeclared "inline" after being called
+      #  873 is "has no corresponding operator delete". ToDo: we should fix.
+      #  981 is "operands are evaluated in unspecified order"
+      # 1418 is "external function definition with no prior declaration"
+      # 1419 is "external declaration in primary source file"
+      # 1572 is "floating-point equality and inequality comparisons are unreliable"
+      # 1720 is "operator new" has no corresponding member operator delete"
+      # 2256 is "non-pointer conversion from "int" to "unsigned char" "
+      # 2259 is "non-pointer conversion from "int" to "unsigned char" "
+      #
+      # TODO: We should try to eliminate more of these -wd exclusions.
+      common_opt="-pipe -Wall -wd111 -wd279 -wd383 -wd522 -wd444 -wd873 -wd981 -wd1418 -wd1419 -wd1572 -wd1720 -wd2256 -wd2259"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimization_flags -axsse4.2 -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+
+fi
+
+    if test "x$ax_cv_c_compiler_vendor" = "xclang"; then :
+
+      debug_opt="-ggdb3 $common_opt -Qunused-arguments"
+      release_opt="-g $common_opt $optimizing_flags -fno-strict-aliasing -Qunused-arguments"
+      cxx_opt="-Wno-invalid-offsetof -Qunused-arguments"
+
+fi
+
+    if test "x$ax_cv_c_compiler_vendor" = "xgnu"; then :
+
+      # This is useful for finding odd conversions
+      #    common_opt="-pipe -Wall -Wconversion -Wno-sign-conversion"
+      ts_am_common_flags="-Wunused-parameter"
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+      # Special options for flex generated .c files
+      flex_cflags="-Wno-unused-parameter"
+
+fi
+
+    ;; # linux)
+
+  darwin)
+    if test "x$ax_cv_c_compiler_vendor" = "xclang"; then :
+
+      common_opt="-pipe -Wall -Wno-deprecated-declarations -Qunused-arguments"
+      debug_opt="-g $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+
+else
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: clang is the only supported compiler on Darwin" >&5
+$as_echo "$as_me: WARNING: clang is the only supported compiler on Darwin" >&2;}
+
+fi
+
+    # Darwin needs to use libc++ for any C++11 code.
+     if  true ; then
+  BUILD_HAVE_LIBCXX_TRUE=
+  BUILD_HAVE_LIBCXX_FALSE='#'
+else
+  BUILD_HAVE_LIBCXX_TRUE='#'
+  BUILD_HAVE_LIBCXX_FALSE=
+fi
+
+
+    # NOTE: This seems semi-kludgy, but useful for MacPorts I think.
+    if test -d /opt/local/include; then :
+
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I/opt/local/include\""
+    CPPFLAGS="-I/opt/local/include"
+  else
+    ats_addto_bugger="-I/opt/local/include"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+fi
+    if test -d /opt/local/lib; then :
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L/opt/local/lib\""
+    LDFLAGS="-L/opt/local/lib"
+  else
+    ats_addto_bugger="-L/opt/local/lib"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+fi
+
+    ;; # darwin)
+
+  freebsd|kfreebsd)
+    if test "x$ax_cv_c_compiler_vendor" = "xclang"; then :
+
+      common_opt="-pipe -Wall -Qunused-arguments"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof -Qunused-arguments"
+
+fi
+
+    if test "x$ax_cv_c_compiler_vendor" = "xgnu"; then :
+
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+
+fi
+
+    if test -d /usr/local/lib; then :
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L/usr/local/lib\""
+    LDFLAGS="-L/usr/local/lib"
+  else
+    ats_addto_bugger="-L/usr/local/lib"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+fi
+
+    ;; # freebsd|kfreebsd)
+
+  solaris)
+    if test "x$ax_cv_c_compiler_vendor" = "xgnu"; then :
+
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+
+fi
+
+    ;; # solaris)
+
+  *)
+    # Not sure what platform this is, but take a stab at some general GCC options ...
+    if test "x$ax_cv_c_compiler_vendor" = "xgnu"; then :
+
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+
+fi
+esac
+
+# Only add -Werror if the user has requested it. We enable this by default for
+# development, disable it by default for release.
+if test x"$enable_werror" = xyes; then :
+
+
+  if test "x$release_opt" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting release_opt to \"-Werror\""
+    release_opt="-Werror"
+  else
+    ats_addto_bugger="-Werror"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $release_opt; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to release_opt"
+        release_opt="$release_opt $i"
+      fi
+    done
+  fi
+
+
+  if test "x$debug_opt" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting debug_opt to \"-Werror\""
+    debug_opt="-Werror"
+  else
+    ats_addto_bugger="-Werror"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $debug_opt; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to debug_opt"
+        debug_opt="$debug_opt $i"
+      fi
+    done
+  fi
+
+
+fi
+
+cc_oflag_opt=$release_opt
+cc_oflag_dbg=$debug_opt
+cxx_oflag_opt="$release_opt $cxx_opt $cxx_rel"
+cxx_oflag_dbg="$debug_opt $cxx_opt $cxx_dbg"
+
+AM_CFLAGS="$ts_am_common_flags"
+AM_CXXFLAGS="$ts_am_common_flags"
+
+
+
+FLEX_CFLAGS=$flex_cflags
+
+
+SHARED_CFLAGS=-fPIC
+SHARED_LDFLAGS=-shared
+SHARED_CXXFLAGS=-fPIC
+SHARED_CXXLINKFLAGS=-shared
+
+#
+# _Here_ is where we go ahead and add the _optimizations_ to already
+#  existing CFLAGS/CXXFLAGS if some special values had been set.
+#
+if test "x${enable_debug}" = "xyes"; then
+
+  if test "x$CFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CFLAGS to \"${cc_oflag_dbg}\""
+    CFLAGS="${cc_oflag_dbg}"
+  else
+    ats_addto_bugger="${cc_oflag_dbg}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CFLAGS"
+        CFLAGS="$CFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CXXFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CXXFLAGS to \"${cxx_oflag_dbg}\""
+    CXXFLAGS="${cxx_oflag_dbg}"
+  else
+    ats_addto_bugger="${cxx_oflag_dbg}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CXXFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CXXFLAGS"
+        CXXFLAGS="$CXXFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-DDEBUG -D_DEBUG\""
+    CPPFLAGS="-DDEBUG -D_DEBUG"
+  else
+    ats_addto_bugger="-DDEBUG -D_DEBUG"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+else
+
+  if test "x$CFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CFLAGS to \"${cc_oflag_opt}\""
+    CFLAGS="${cc_oflag_opt}"
+  else
+    ats_addto_bugger="${cc_oflag_opt}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CFLAGS"
+        CFLAGS="$CFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CXXFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CXXFLAGS to \"${cxx_oflag_opt}\""
+    CXXFLAGS="${cxx_oflag_opt}"
+  else
+    ats_addto_bugger="${cxx_oflag_opt}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CXXFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CXXFLAGS"
+        CXXFLAGS="$CXXFLAGS $i"
+      fi
+    done
+  fi
+
+fi
+
+# Checks for pointer size
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void*" >&5
+$as_echo_n "checking size of void*... " >&6; }
+if ${ac_cv_sizeof_voidp+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void*))" "ac_cv_sizeof_voidp"        "$ac_includes_default"; then :
+
+else
+  if test "$ac_cv_type_voidp" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (void*)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_voidp=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_voidp" >&5
+$as_echo "$ac_cv_sizeof_voidp" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF_VOIDP $ac_cv_sizeof_voidp
+_ACEOF
+
+
+if test "x$ac_cv_sizeof_voidp" == "x"; then
+  as_fn_error $? "Cannot determine size of void*" "$LINENO" 5
+fi
+
+
+
+#
+# Here are all the extra linux-specific C(XX)FLAGS additions and
+# so forth.
+# TODO cpu architecture settings separate from operating system settings
+#
+cpu_architecture=""
+# GCC: add a default march if there is not one set
+if test "x${GCC}" = "xyes"; then
+  if test "${ac_cv_sizeof_voidp}" = "4"; then
+    case "$host_cpu" in
+      i?86* | k5-8* | pentium* | athlon)
+        cpu_architecture="-march=i586"
+      ;;
+    esac
+  else
+    case "$host_cpu" in
+      x86_64 | amd64)
+        # XXX: Any need for 64-bit arch flags?
+        # cpu_architecture="-march=native"
+      ;;
+    esac
+  fi
+fi
+
+# Overrride detected architecture with the user suplied one
+#
+
+# Check whether --with-architecture was given.
+if test "${with_architecture+set}" = set; then :
+  withval=$with_architecture;
+  if test "x$withval" != "xyes" && test "x$withval" != "xno"; then
+    case "$withval" in
+      -*)
+        # TODO: In case we are cross compiling some of the provided flags
+        #       should be added to the LDFLAGS
+        cpu_architecture="$withval"
+      ;;
+      *)
+        cpu_architecture="-march=$withval"
+      ;;
+    esac
+  elif test "x$withval" = "x"; then
+    as_fn_error $? "--with-architecture requires an param" "$LINENO" 5
+  fi
+
+fi
+
+
+if test "x$cpu_architecture" != "x"; then
+
+  if test "x$CFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CFLAGS to \"$cpu_architecture\""
+    CFLAGS="$cpu_architecture"
+  else
+    ats_addto_bugger="$cpu_architecture"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CFLAGS"
+        CFLAGS="$CFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CXXFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CXXFLAGS to \"$cpu_architecture\""
+    CXXFLAGS="$cpu_architecture"
+  else
+    ats_addto_bugger="$cpu_architecture"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CXXFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CXXFLAGS"
+        CXXFLAGS="$CXXFLAGS $i"
+      fi
+    done
+  fi
+
+fi
+
+# 64-bit LFS support
+#
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-D_LARGEFILE64_SOURCE=1\""
+    CPPFLAGS="-D_LARGEFILE64_SOURCE=1"
+  else
+    ats_addto_bugger="-D_LARGEFILE64_SOURCE=1"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+if test "${ac_cv_sizeof_voidp}" = "8"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-D_COMPILE64BIT_SOURCE=1\""
+    CPPFLAGS="-D_COMPILE64BIT_SOURCE=1"
+  else
+    ats_addto_bugger="-D_COMPILE64BIT_SOURCE=1"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+else
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-D_FILE_OFFSET_BITS=64\""
+    CPPFLAGS="-D_FILE_OFFSET_BITS=64"
+  else
+    ats_addto_bugger="-D_FILE_OFFSET_BITS=64"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+fi
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-D_GNU_SOURCE\""
+    CPPFLAGS="-D_GNU_SOURCE"
+  else
+    ats_addto_bugger="-D_GNU_SOURCE"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-D_REENTRANT\""
+    CPPFLAGS="-D_REENTRANT"
+  else
+    ats_addto_bugger="-D_REENTRANT"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: Build for host OS: $host_os, arch: $host_cpu, optimization: $host_os_def" >&5
+$as_echo "$as_me: Build for host OS: $host_os, arch: $host_cpu, optimization: $host_os_def" >&6;}
+
+#
+# Note:  These are site-specific macro's that do various tests
+#         on the selected compilers.  There was some tunning
+#         associated with our not wanting to use GNU for _everything_.
+# Note:  This macro may set certain parameters when run.
+#
+
+#
+# CPP 11 API
+# TODO: briang, this needs to be translated to a define
+# that can be used in the c++ api to enable c++11 api features.
+#
+#AC_MSG_CHECKING([whether to enable c++11 api])
+#AC_ARG_WITH([cpp11api],
+#  [AS_HELP_STRING([--with-cpp11api],[enable support for cpp11api [default=auto]])],
+#  [cpp11api=$withval],
+#  [cpp11api=$enable_cxx_11_support]
+#)
+#AC_MSG_RESULT([$cpp11api])
+#AM_CONDITIONAL([BUILD_CPP11API], [test "$cpp11api" = yes])
+
+# Check for ccache (if explicitly enabled)
+if test "x$enable_ccache" = "xyes"; then
+    # Extract the first word of "ccache", so it can be a program name with args.
+set dummy ccache; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CCACHE+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CCACHE"; then
+  ac_cv_prog_CCACHE="$CCACHE" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CCACHE="ccache"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CCACHE=$ac_cv_prog_CCACHE
+if test -n "$CCACHE"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CCACHE" >&5
+$as_echo "$CCACHE" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    if test "x${CCACHE}" = "xccache"; then
+        CC="$CCACHE $CC"
+        CXX="$CCACHE $CXX"
+    fi
+fi
+
+# -----------------------------------------------------------------------------
+# 4. CHECK FOR LIBRARIES
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing exc_capture_context" >&5
+$as_echo_n "checking for library containing exc_capture_context... " >&6; }
+if ${ac_cv_search_exc_capture_context+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char exc_capture_context ();
+int
+main ()
+{
+return exc_capture_context ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' exc; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_exc_capture_context=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_exc_capture_context+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_exc_capture_context+:} false; then :
+
+else
+  ac_cv_search_exc_capture_context=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_exc_capture_context" >&5
+$as_echo "$ac_cv_search_exc_capture_context" >&6; }
+ac_res=$ac_cv_search_exc_capture_context
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing MLD_demangle_string" >&5
+$as_echo_n "checking for library containing MLD_demangle_string... " >&6; }
+if ${ac_cv_search_MLD_demangle_string+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char MLD_demangle_string ();
+int
+main ()
+{
+return MLD_demangle_string ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' mld; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_MLD_demangle_string=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_MLD_demangle_string+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_MLD_demangle_string+:} false; then :
+
+else
+  ac_cv_search_MLD_demangle_string=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_MLD_demangle_string" >&5
+$as_echo "$ac_cv_search_MLD_demangle_string" >&6; }
+ac_res=$ac_cv_search_MLD_demangle_string
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5
+$as_echo_n "checking for library containing dlopen... " >&6; }
+if ${ac_cv_search_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' dl; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_dlopen=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_dlopen+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_dlopen+:} false; then :
+
+else
+  ac_cv_search_dlopen=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlopen" >&5
+$as_echo "$ac_cv_search_dlopen" >&6; }
+ac_res=$ac_cv_search_dlopen
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing socket" >&5
+$as_echo_n "checking for library containing socket... " >&6; }
+if ${ac_cv_search_socket+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char socket ();
+int
+main ()
+{
+return socket ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' socket; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_socket=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_socket+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_socket+:} false; then :
+
+else
+  ac_cv_search_socket=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_socket" >&5
+$as_echo "$ac_cv_search_socket" >&6; }
+ac_res=$ac_cv_search_socket
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyname" >&5
+$as_echo_n "checking for library containing gethostbyname... " >&6; }
+if ${ac_cv_search_gethostbyname+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname ();
+int
+main ()
+{
+return gethostbyname ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' nsl; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_gethostbyname=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_gethostbyname+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_gethostbyname+:} false; then :
+
+else
+  ac_cv_search_gethostbyname=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyname" >&5
+$as_echo "$ac_cv_search_gethostbyname" >&6; }
+ac_res=$ac_cv_search_gethostbyname
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5
+$as_echo_n "checking for library containing pthread_create... " >&6; }
+if ${ac_cv_search_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' pthread; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_pthread_create=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_pthread_create+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_pthread_create+:} false; then :
+
+else
+  ac_cv_search_pthread_create=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5
+$as_echo "$ac_cv_search_pthread_create" >&6; }
+ac_res=$ac_cv_search_pthread_create
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+$as_echo_n "checking for library containing clock_gettime... " >&6; }
+if ${ac_cv_search_clock_gettime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime ();
+int
+main ()
+{
+return clock_gettime ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' rt; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_clock_gettime=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_clock_gettime+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_clock_gettime+:} false; then :
+
+else
+  ac_cv_search_clock_gettime=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+$as_echo "$ac_cv_search_clock_gettime" >&6; }
+ac_res=$ac_cv_search_clock_gettime
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5
+$as_echo_n "checking for library containing clock_gettime... " >&6; }
+if ${ac_cv_search_clock_gettime+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime ();
+int
+main ()
+{
+return clock_gettime ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' posix4; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_clock_gettime=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_clock_gettime+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_clock_gettime+:} false; then :
+
+else
+  ac_cv_search_clock_gettime=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5
+$as_echo "$ac_cv_search_clock_gettime" >&6; }
+ac_res=$ac_cv_search_clock_gettime
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for res_init in -lresolv" >&5
+$as_echo_n "checking for res_init in -lresolv... " >&6; }
+if ${ac_cv_lib_resolv_res_init+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lresolv  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char res_init ();
+int
+main ()
+{
+return res_init ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_resolv_res_init=yes
+else
+  ac_cv_lib_resolv_res_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_resolv_res_init" >&5
+$as_echo "$ac_cv_lib_resolv_res_init" >&6; }
+if test "x$ac_cv_lib_resolv_res_init" = xyes; then :
+  LIBRESOLV="-lresolv"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __putlong in -lresolv" >&5
+$as_echo_n "checking for __putlong in -lresolv... " >&6; }
+if ${ac_cv_lib_resolv___putlong+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lresolv  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __putlong ();
+int
+main ()
+{
+return __putlong ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_resolv___putlong=yes
+else
+  ac_cv_lib_resolv___putlong=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_resolv___putlong" >&5
+$as_echo "$ac_cv_lib_resolv___putlong" >&6; }
+if test "x$ac_cv_lib_resolv___putlong" = xyes; then :
+  LIBRESOLV="-lresolv"
+
+fi
+
+
+# Test for ncurses. We need to turn off -Werror because the C code in the
+# ncurses compile tests does not generate unused variable warnings.
+__saved_CFLAGS="$CFLAGS"
+
+  if test "x$CFLAGS" = "x-Werror"; then
+    test "x$verbose" = "xyes" && echo "  nulling CFLAGS"
+    CFLAGS=""
+  else
+    ats_new_bugger=""
+    ats_removed=0
+    for i in $CFLAGS; do
+      if test "x$i" != "x-Werror"; then
+        ats_new_bugger="$ats_new_bugger $i"
+      else
+        ats_removed=1
+      fi
+    done
+    if test $ats_removed = "1"; then
+      test "x$verbose" = "xyes" && echo "  removed \"-Werror\" from CFLAGS"
+      CFLAGS=$ats_new_bugger
+    fi
+  fi
+
+
+
+
+# Check whether --with-ncurses was given.
+if test "${with_ncurses+set}" = set; then :
+  withval=$with_ncurses;
+else
+  with_ncurses=check
+fi
+
+
+# Check whether --with-ncursesw was given.
+if test "${with_ncursesw+set}" = set; then :
+  withval=$with_ncursesw;
+else
+  with_ncursesw=check
+fi
+
+
+    ax_saved_LIBS=$LIBS
+    if test "x$with_ncurses" = xyes || test "x$with_ncursesw" = xyes; then :
+  ax_with_plaincurses=no
+else
+  ax_with_plaincurses=check
+fi
+
+    ax_cv_curses_which=no
+
+    # Test for NcursesW
+
+    if test "x$CURSES_LIB" = x && test "x$with_ncursesw" != xno; then :
+
+        LIBS="$ax_saved_LIBS -lncursesw"
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for NcursesW wide-character library" >&5
+$as_echo_n "checking for NcursesW wide-character library... " >&6; }
+if ${ax_cv_ncursesw+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char initscr ();
+int
+main ()
+{
+return initscr ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_ncursesw=yes
+else
+  ax_cv_ncursesw=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_ncursesw" >&5
+$as_echo "$ax_cv_ncursesw" >&6; }
+        if test "x$ax_cv_ncursesw" = xno && test "x$with_ncursesw" = xyes; then :
+
+            as_fn_error $? "--with-ncursesw specified but could not find NcursesW library" "$LINENO" 5
+
+fi
+
+        if test "x$ax_cv_ncursesw" = xyes; then :
+
+            ax_cv_curses=yes
+            ax_cv_curses_which=ncursesw
+            CURSES_LIB="-lncursesw"
+
+$as_echo "#define HAVE_NCURSESW 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES 1" >>confdefs.h
+
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working ncursesw/curses.h" >&5
+$as_echo_n "checking for working ncursesw/curses.h... " >&6; }
+if ${ax_cv_header_ncursesw_curses_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #define _XOPEN_SOURCE_EXTENDED 1
+                        #include <ncursesw/curses.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        attr_t d = WA_NORMAL;
+                        cchar_t e;
+                        wint_t f;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                        wattr_set(stdscr, d, 0, NULL);
+                        wget_wch(stdscr, &f);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_header_ncursesw_curses_h=yes
+else
+  ax_cv_header_ncursesw_curses_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_header_ncursesw_curses_h" >&5
+$as_echo "$ax_cv_header_ncursesw_curses_h" >&6; }
+            if test "x$ax_cv_header_ncursesw_curses_h" = xyes; then :
+
+                ax_cv_curses_enhanced=yes
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+
+$as_echo "#define HAVE_CURSES_ENHANCED 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_OBSOLETE 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_NCURSESW_CURSES_H 1" >>confdefs.h
+
+
+fi
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working ncursesw.h" >&5
+$as_echo_n "checking for working ncursesw.h... " >&6; }
+if ${ax_cv_header_ncursesw_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #define _XOPEN_SOURCE_EXTENDED 1
+                        #include <ncursesw.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        attr_t d = WA_NORMAL;
+                        cchar_t e;
+                        wint_t f;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                        wattr_set(stdscr, d, 0, NULL);
+                        wget_wch(stdscr, &f);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_header_ncursesw_h=yes
+else
+  ax_cv_header_ncursesw_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_header_ncursesw_h" >&5
+$as_echo "$ax_cv_header_ncursesw_h" >&6; }
+            if test "x$ax_cv_header_ncursesw_h" = xyes; then :
+
+                ax_cv_curses_enhanced=yes
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+
+$as_echo "#define HAVE_CURSES_ENHANCED 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_OBSOLETE 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_NCURSESW_H 1" >>confdefs.h
+
+
+fi
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working ncurses.h" >&5
+$as_echo_n "checking for working ncurses.h... " >&6; }
+if ${ax_cv_header_ncurses_h_with_ncursesw+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #define _XOPEN_SOURCE_EXTENDED 1
+                        #include <ncurses.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        attr_t d = WA_NORMAL;
+                        cchar_t e;
+                        wint_t f;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+                        wattr_set(stdscr, d, 0, NULL);
+                        wget_wch(stdscr, &f);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_header_ncurses_h_with_ncursesw=yes
+else
+  ax_cv_header_ncurses_h_with_ncursesw=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_header_ncurses_h_with_ncursesw" >&5
+$as_echo "$ax_cv_header_ncurses_h_with_ncursesw" >&6; }
+            if test "x$ax_cv_header_ncurses_h_with_ncursesw" = xyes; then :
+
+                ax_cv_curses_enhanced=yes
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+
+$as_echo "#define HAVE_CURSES_ENHANCED 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_OBSOLETE 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_NCURSES_H 1" >>confdefs.h
+
+
+fi
+
+            if test "x$ax_cv_header_ncursesw_curses_h" = xno && test "x$ax_cv_header_ncursesw_h" = xno && test "x$ax_cv_header_ncurses_h_with_ncursesw" = xno; then :
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: could not find a working ncursesw/curses.h, ncursesw.h or ncurses.h" >&5
+$as_echo "$as_me: WARNING: could not find a working ncursesw/curses.h, ncursesw.h or ncurses.h" >&2;}
+
+fi
+
+fi
+
+fi
+
+    # Test for Ncurses
+
+    if test "x$CURSES_LIB" = x && test "x$with_ncurses" != xno && test "x$ax_cv_curses_which" = xno; then :
+
+        LIBS="$ax_saved_LIBS -lncurses"
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Ncurses library" >&5
+$as_echo_n "checking for Ncurses library... " >&6; }
+if ${ax_cv_ncurses+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char initscr ();
+int
+main ()
+{
+return initscr ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_ncurses=yes
+else
+  ax_cv_ncurses=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_ncurses" >&5
+$as_echo "$ax_cv_ncurses" >&6; }
+        if test "x$ax_cv_ncurses" = xno && test "x$with_ncurses" = xyes; then :
+
+            as_fn_error $? "--with-ncurses specified but could not find Ncurses library" "$LINENO" 5
+
+fi
+
+        if test "x$ax_cv_ncurses" = xyes; then :
+
+            ax_cv_curses=yes
+            ax_cv_curses_which=ncurses
+            CURSES_LIB="-lncurses"
+
+$as_echo "#define HAVE_NCURSES 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES 1" >>confdefs.h
+
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working ncurses/curses.h" >&5
+$as_echo_n "checking for working ncurses/curses.h... " >&6; }
+if ${ax_cv_header_ncurses_curses_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #include <ncurses/curses.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_header_ncurses_curses_h=yes
+else
+  ax_cv_header_ncurses_curses_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_header_ncurses_curses_h" >&5
+$as_echo "$ax_cv_header_ncurses_curses_h" >&6; }
+            if test "x$ax_cv_header_ncurses_curses_h" = xyes; then :
+
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_OBSOLETE 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_NCURSES_CURSES_H 1" >>confdefs.h
+
+
+fi
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working ncurses.h" >&5
+$as_echo_n "checking for working ncurses.h... " >&6; }
+if ${ax_cv_header_ncurses_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #include <ncurses.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        chtype c = COLOR_PAIR(1) & A_COLOR;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+                        init_pair(1, COLOR_WHITE, COLOR_RED);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_header_ncurses_h=yes
+else
+  ax_cv_header_ncurses_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_header_ncurses_h" >&5
+$as_echo "$ax_cv_header_ncurses_h" >&6; }
+            if test "x$ax_cv_header_ncurses_h" = xyes; then :
+
+                ax_cv_curses_color=yes
+                ax_cv_curses_obsolete=yes
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_OBSOLETE 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_NCURSES_H 1" >>confdefs.h
+
+
+fi
+
+            if test "x$ax_cv_header_ncurses_curses_h" = xno && test "x$ax_cv_header_ncurses_h" = xno; then :
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: could not find a working ncurses/curses.h or ncurses.h" >&5
+$as_echo "$as_me: WARNING: could not find a working ncurses/curses.h or ncurses.h" >&2;}
+
+fi
+
+fi
+
+fi
+
+    # Test for plain Curses (or if CURSES_LIB was set by user)
+
+    if test "x$with_plaincurses" != xno && test "x$ax_cv_curses_which" = xno; then :
+
+        if test "x$CURSES_LIB" != x; then :
+
+            LIBS="$ax_saved_LIBS $CURSES_LIB"
+
+else
+
+            LIBS="$ax_saved_LIBS -lcurses"
+
+fi
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Curses library" >&5
+$as_echo_n "checking for Curses library... " >&6; }
+if ${ax_cv_plaincurses+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char initscr ();
+int
+main ()
+{
+return initscr ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_plaincurses=yes
+else
+  ax_cv_plaincurses=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_plaincurses" >&5
+$as_echo "$ax_cv_plaincurses" >&6; }
+
+        if test "x$ax_cv_plaincurses" = xyes; then :
+
+            ax_cv_curses=yes
+            ax_cv_curses_which=plaincurses
+            if test "x$CURSES_LIB" = x; then :
+
+                CURSES_LIB="-lcurses"
+
+fi
+
+$as_echo "#define HAVE_CURSES 1" >>confdefs.h
+
+
+            # Check for base conformance (and header file)
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working curses.h" >&5
+$as_echo_n "checking for working curses.h... " >&6; }
+if ${ax_cv_header_curses_h+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #include <curses.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        initscr();
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_header_curses_h=yes
+else
+  ax_cv_header_curses_h=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_header_curses_h" >&5
+$as_echo "$ax_cv_header_curses_h" >&6; }
+            if test "x$ax_cv_header_curses_h" = xyes; then :
+
+
+$as_echo "#define HAVE_CURSES_H 1" >>confdefs.h
+
+
+                # Check for X/Open Enhanced conformance
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for X/Open Enhanced Curses conformance" >&5
+$as_echo_n "checking for X/Open Enhanced Curses conformance... " >&6; }
+if ${ax_cv_plaincurses_enhanced+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                            #define _XOPEN_SOURCE_EXTENDED 1
+                            #include <curses.h>
+                            #ifndef _XOPEN_CURSES
+                            #error "this Curses library is not enhanced"
+                            "this Curses library is not enhanced"
+                            #endif
+
+int
+main ()
+{
+
+                            chtype a = A_BOLD;
+                            int b = KEY_LEFT;
+                            chtype c = COLOR_PAIR(1) & A_COLOR;
+                            attr_t d = WA_NORMAL;
+                            cchar_t e;
+                            wint_t f;
+                            initscr();
+                            init_pair(1, COLOR_WHITE, COLOR_RED);
+                            wattr_set(stdscr, d, 0, NULL);
+                            wget_wch(stdscr, &f);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_plaincurses_enhanced=yes
+else
+  ax_cv_plaincurses_enhanced=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_plaincurses_enhanced" >&5
+$as_echo "$ax_cv_plaincurses_enhanced" >&6; }
+                if test "x$ax_cv_plaincurses_enhanced" = xyes; then :
+
+                    ax_cv_curses_enhanced=yes
+                    ax_cv_curses_color=yes
+
+$as_echo "#define HAVE_CURSES_ENHANCED 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+fi
+
+                # Check for color functions
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Curses color functions" >&5
+$as_echo_n "checking for Curses color functions... " >&6; }
+if ${ax_cv_plaincurses_color+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #define _XOPEN_SOURCE_EXTENDED 1
+                        #include <curses.h>
+
+int
+main ()
+{
+
+                            chtype a = A_BOLD;
+                            int b = KEY_LEFT;
+                            chtype c = COLOR_PAIR(1) & A_COLOR;
+                            initscr();
+                            init_pair(1, COLOR_WHITE, COLOR_RED);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_plaincurses_color=yes
+else
+  ax_cv_plaincurses_color=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_plaincurses_color" >&5
+$as_echo "$ax_cv_plaincurses_color" >&6; }
+                if test "x$ax_cv_plaincurses_color" = xyes; then :
+
+                    ax_cv_curses_color=yes
+
+$as_echo "#define HAVE_CURSES_COLOR 1" >>confdefs.h
+
+
+fi
+
+                # Check for obsolete functions
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: checking for obsolete Curses functions" >&5
+$as_echo_n "checking for obsolete Curses functions... " >&6; }
+if ${ax_cv_plaincurses_obsolete+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                        #include <curses.h>
+
+int
+main ()
+{
+
+                        chtype a = A_BOLD;
+                        int b = KEY_LEFT;
+                        int g = getattrs(stdscr);
+                        int h = getcurx(stdscr) + getmaxx(stdscr);
+                        initscr();
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_plaincurses_obsolete=yes
+else
+  ax_cv_plaincurses_obsolete=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_plaincurses_obsolete" >&5
+$as_echo "$ax_cv_plaincurses_obsolete" >&6; }
+                if test "x$ax_cv_plaincurses_obsolete" = xyes; then :
+
+                    ax_cv_curses_obsolete=yes
+
+$as_echo "#define HAVE_CURSES_OBSOLETE 1" >>confdefs.h
+
+
+fi
+
+fi
+
+            if test "x$ax_cv_header_curses_h" = xno; then :
+
+                { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: could not find a working curses.h" >&5
+$as_echo "$as_me: WARNING: could not find a working curses.h" >&2;}
+
+fi
+
+fi
+
+fi
+
+    if test "x$ax_cv_curses"          != xyes; then :
+  ax_cv_curses=no
+fi
+    if test "x$ax_cv_curses_enhanced" != xyes; then :
+  ax_cv_curses_enhanced=no
+fi
+    if test "x$ax_cv_curses_color"    != xyes; then :
+  ax_cv_curses_color=no
+fi
+    if test "x$ax_cv_curses_obsolete" != xyes; then :
+  ax_cv_curses_obsolete=no
+fi
+
+    LIBS=$ax_saved_LIBS
+
+CFLAGS="$__saved_CFLAGS"
+
+
+
+
+
+
+
+# Check whether --with-curl-prefix was given.
+if test "${with_curl_prefix+set}" = set; then :
+  withval=$with_curl_prefix; curl_config_prefix="$withval"
+else
+  curl_config_prefix=""
+fi
+
+
+# Check whether --with-curl-exec-prefix was given.
+if test "${with_curl_exec_prefix+set}" = set; then :
+  withval=$with_curl_exec_prefix; curl_config_exec_prefix="$withval"
+else
+  curl_config_exec_prefix=""
+fi
+
+
+
+
+
+
+  if test x$CURL_CFLAGS != x -o x$CURL_LIBS != x; then :
+
+
+
+    :
+
+     if test "x$ax_cv_curses" = "xyes"; then
+  BUILD_TSTOP_TRUE=
+  BUILD_TSTOP_FALSE='#'
+else
+  BUILD_TSTOP_TRUE='#'
+  BUILD_TSTOP_FALSE=
+fi
+
+
+
+else
+
+    if test x$curl_config_exec_prefix != x; then :
+
+      curl_config_args="$curl_config_args --exec-prefix=$curl_config_exec_prefix"
+      if test x${CURL_CONFIG+set} != xset; then :
+
+	CURL_CONFIG=$curl_config_exec_prefix/bin/curl-config
+
+fi
+
+fi
+    if test x$curl_config_prefix != x; then :
+
+      curl_config_args="$curl_config_args --prefix=$curl_config_prefix"
+      if test x${CURL_CONFIG+set} != xset; then :
+
+	CURL_CONFIG=$curl_config_prefix/bin/curl-config
+
+fi
+
+fi
+
+    for ac_prog in  curl-config
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_CURL_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $CURL_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_CURL_CONFIG="$CURL_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_CURL_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+CURL_CONFIG=$ac_cv_path_CURL_CONFIG
+if test -n "$CURL_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CURL_CONFIG" >&5
+$as_echo "$CURL_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CURL_CONFIG" && break
+done
+test -n "$CURL_CONFIG" || CURL_CONFIG="no"
+
+    if test "$CURL_CONFIG" == "no"; then :
+
+      :
+
+     if false; then
+  BUILD_TSTOP_TRUE=
+  BUILD_TSTOP_FALSE='#'
+else
+  BUILD_TSTOP_TRUE='#'
+  BUILD_TSTOP_FALSE=
+fi
+
+
+
+
+else
+
+            if test x"" == x; then :
+
+	CURL_CFLAGS="`$CURL_CONFIG $curl_config_args --cflags`"
+
+else
+
+	CURL_CFLAGS="`$CURL_CONFIG $curl_config_args `"
+
+fi
+
+            if test x"" == x; then :
+
+	CURL_LIBS="`$CURL_CONFIG $curl_config_args --libs`"
+
+else
+
+	CURL_LIBS="`$CURL_CONFIG $curl_config_args `"
+
+fi
+
+      if test x"7.19" != x; then :
+
+		if test x"'s/^libcurl\ \+//'" != x; then :
+
+	  	  curl_version="`$CURL_CONFIG $curl_config_args --version | $SED -e 's/^libcurl\ \+//'`"
+
+else
+
+	  curl_version="`$CURL_CONFIG $curl_config_args --version | $SED -e 's/^\ *\(.*\)\ *$/\1/'`"
+
+fi
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for curl ($curl_version) >= 7.19" >&5
+$as_echo_n "checking for curl ($curl_version) >= 7.19... " >&6; }
+
+
+
+  # Used to indicate true or false condition
+  ax_compare_version=false
+
+  # Convert the two version strings to be compared into a format that
+  # allows a simple string comparison.  The end result is that a version
+  # string of the form 1.12.5-r617 will be converted to the form
+  # 0001001200050617.  In other words, each number is zero padded to four
+  # digits, and non digits are removed.
+
+  ax_compare_version_A=`echo "$curl_version" | sed -e 's/\([0-9]*\)/Z\1Z/g' \
+                     -e 's/Z\([0-9]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([0-9][0-9]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([0-9][0-9][0-9]\)Z/Z0\1Z/g' \
+                     -e 's/[^0-9]//g'`
+
+
+  ax_compare_version_B=`echo "7.19" | sed -e 's/\([0-9]*\)/Z\1Z/g' \
+                     -e 's/Z\([0-9]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([0-9][0-9]\)Z/Z0\1Z/g' \
+                     -e 's/Z\([0-9][0-9][0-9]\)Z/Z0\1Z/g' \
+                     -e 's/[^0-9]//g'`
+
+
+    ax_compare_version=`echo "x$ax_compare_version_A
+x$ax_compare_version_B" | sed 's/^ *//' | sort -r | sed "s/x${ax_compare_version_A}/true/;s/x${ax_compare_version_B}/false/;1q"`
+
+
+
+    if test "$ax_compare_version" = "true" ; then
+
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+	  :
+
+     if test "x$ax_cv_curses" = "xyes"; then
+  BUILD_TSTOP_TRUE=
+  BUILD_TSTOP_FALSE='#'
+else
+  BUILD_TSTOP_TRUE='#'
+  BUILD_TSTOP_FALSE=
+fi
+
+
+
+    else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	  :
+
+     if false; then
+  BUILD_TSTOP_TRUE=
+  BUILD_TSTOP_FALSE='#'
+else
+  BUILD_TSTOP_TRUE='#'
+  BUILD_TSTOP_FALSE=
+fi
+
+
+
+
+  fi
+
+
+else
+
+
+
+	:
+
+     if test "x$ax_cv_curses" = "xyes"; then
+  BUILD_TSTOP_TRUE=
+  BUILD_TSTOP_FALSE='#'
+else
+  BUILD_TSTOP_TRUE='#'
+  BUILD_TSTOP_FALSE=
+fi
+
+
+
+fi
+
+fi
+
+fi
+
+
+
+
+
+
+#
+# The header_rewrite module depends on boost.
+
+
+# Check whether --with-boost was given.
+if test "${with_boost+set}" = set; then :
+  withval=$with_boost;
+    if test "$withval" = "no"; then
+        want_boost="no"
+    elif test "$withval" = "yes"; then
+        want_boost="yes"
+        ac_boost_path=""
+    else
+        want_boost="yes"
+        ac_boost_path="$withval"
+    fi
+
+else
+  want_boost="yes"
+fi
+
+
+
+
+# Check whether --with-boost-libdir was given.
+if test "${with_boost_libdir+set}" = set; then :
+  withval=$with_boost_libdir;
+        if test -d "$withval"
+        then
+                ac_boost_lib_path="$withval"
+        else
+                as_fn_error $? "--with-boost-libdir expected directory name" "$LINENO" 5
+        fi
+
+else
+  ac_boost_lib_path=""
+
+fi
+
+
+if test "x$want_boost" = "xyes"; then
+    boost_lib_version_req=1.33
+    boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([0-9]*\.[0-9]*\)'`
+    boost_lib_version_req_major=`expr $boost_lib_version_req : '\([0-9]*\)'`
+    boost_lib_version_req_minor=`expr $boost_lib_version_req : '[0-9]*\.\([0-9]*\)'`
+    boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
+    if test "x$boost_lib_version_req_sub_minor" = "x" ; then
+        boost_lib_version_req_sub_minor="0"
+        fi
+    WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+  $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor`
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for boostlib >= $boost_lib_version_req" >&5
+$as_echo_n "checking for boostlib >= $boost_lib_version_req... " >&6; }
+    succeeded=no
+
+                        libsubdirs="lib"
+    ax_arch=`uname -m`
+    if test $ax_arch = x86_64 -o $ax_arch = ppc64 -o $ax_arch = s390x -o $ax_arch = sparc64; then
+        libsubdirs="lib64 lib lib64"
+    fi
+
+                if test "$ac_boost_path" != ""; then
+        BOOST_CPPFLAGS="-I$ac_boost_path/include"
+        for ac_boost_path_tmp in $libsubdirs; do
+                if test -d "$ac_boost_path"/"$ac_boost_path_tmp" ; then
+                        BOOST_LDFLAGS="-L$ac_boost_path/$ac_boost_path_tmp"
+                        break
+                fi
+        done
+    elif test "$cross_compiling" != yes; then
+        for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do
+            if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then
+                for libsubdir in $libsubdirs ; do
+                    if ls "$ac_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+                done
+                BOOST_LDFLAGS="-L$ac_boost_path_tmp/$libsubdir"
+                BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include"
+                break;
+            fi
+        done
+    fi
+
+            if test "$ac_boost_lib_path" != ""; then
+       BOOST_LDFLAGS="-L$ac_boost_lib_path"
+    fi
+
+    CPPFLAGS_SAVED="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
+    export CPPFLAGS
+
+    LDFLAGS_SAVED="$LDFLAGS"
+    LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
+    export LDFLAGS
+
+
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+    #include <boost/version.hpp>
+
+int
+main ()
+{
+
+    #if BOOST_VERSION >= $WANT_BOOST_VERSION
+    // Everything is okay
+    #else
+    #  error Boost version is too old
+    #endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    succeeded=yes
+    found_system=yes
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+            if test "x$succeeded" != "xyes"; then
+        _version=0
+        if test "$ac_boost_path" != ""; then
+            if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
+                for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
+                    _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
+                    V_CHECK=`expr $_version_tmp \> $_version`
+                    if test "$V_CHECK" = "1" ; then
+                        _version=$_version_tmp
+                    fi
+                    VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
+                    BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE"
+                done
+            fi
+        else
+            if test "$cross_compiling" != yes; then
+                for ac_boost_path in /usr /usr/local /opt /opt/local ; do
+                    if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then
+                        for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do
+                            _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'`
+                            V_CHECK=`expr $_version_tmp \> $_version`
+                            if test "$V_CHECK" = "1" ; then
+                                _version=$_version_tmp
+                                best_path=$ac_boost_path
+                            fi
+                        done
+                    fi
+                done
+
+                VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'`
+                BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE"
+                if test "$ac_boost_lib_path" = ""; then
+                    for libsubdir in $libsubdirs ; do
+                        if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+                    done
+                    BOOST_LDFLAGS="-L$best_path/$libsubdir"
+                fi
+            fi
+
+            if test "x$BOOST_ROOT" != "x"; then
+                for libsubdir in $libsubdirs ; do
+                    if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi
+                done
+                if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/$libsubdir" && test -r "$BOOST_ROOT/stage/$libsubdir"; then
+                    version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'`
+                    stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'`
+                        stage_version_shorten=`expr $stage_version : '\([0-9]*\.[0-9]*\)'`
+                    V_CHECK=`expr $stage_version_shorten \>\= $_version`
+                    if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then
+                        { $as_echo "$as_me:${as_lineno-$LINENO}: We will use a staged boost library from $BOOST_ROOT" >&5
+$as_echo "$as_me: We will use a staged boost library from $BOOST_ROOT" >&6;}
+                        BOOST_CPPFLAGS="-I$BOOST_ROOT"
+                        BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir"
+                    fi
+                fi
+            fi
+        fi
+
+        CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
+        export CPPFLAGS
+        LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
+        export LDFLAGS
+
+        ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+        #include <boost/version.hpp>
+
+int
+main ()
+{
+
+        #if BOOST_VERSION >= $WANT_BOOST_VERSION
+        // Everything is okay
+        #else
+        #  error Boost version is too old
+        #endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+        succeeded=yes
+        found_system=yes
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+        ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    fi
+
+    if test "$succeeded" != "yes" ; then
+        if test "$_version" = "0" ; then
+            { $as_echo "$as_me:${as_lineno-$LINENO}: We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option.  If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation." >&5
+$as_echo "$as_me: We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option.  If you are sure you have boost installed, then check your version number looking in <boost/version.hpp>. See http://randspringer.de/boost for more documentation." >&6;}
+        else
+            { $as_echo "$as_me:${as_lineno-$LINENO}: Your boost libraries seems to old (version $_version)." >&5
+$as_echo "$as_me: Your boost libraries seems to old (version $_version)." >&6;}
+        fi
+        # execute ACTION-IF-NOT-FOUND (if present):
+          if false; then
+  BUILD_HAVE_BOOST_TRUE=
+  BUILD_HAVE_BOOST_FALSE='#'
+else
+  BUILD_HAVE_BOOST_TRUE='#'
+  BUILD_HAVE_BOOST_FALSE=
+fi
+
+
+    else
+
+
+
+$as_echo "#define HAVE_BOOST /**/" >>confdefs.h
+
+        # execute ACTION-IF-FOUND (if present):
+          if true; then
+  BUILD_HAVE_BOOST_TRUE=
+  BUILD_HAVE_BOOST_FALSE='#'
+else
+  BUILD_HAVE_BOOST_TRUE='#'
+  BUILD_HAVE_BOOST_FALSE=
+fi
+
+    fi
+
+    CPPFLAGS="$CPPFLAGS_SAVED"
+    LDFLAGS="$LDFLAGS_SAVED"
+fi
+
+
+
+#
+# Check for SSL presence and usability
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing crypt" >&5
+$as_echo_n "checking for library containing crypt... " >&6; }
+if ${ac_cv_search_crypt+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char crypt ();
+int
+main ()
+{
+return crypt ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' crypt; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_crypt=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_crypt+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_crypt+:} false; then :
+
+else
+  ac_cv_search_crypt=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_crypt" >&5
+$as_echo "$ac_cv_search_crypt" >&6; }
+ac_res=$ac_cv_search_crypt
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  LIBCRYPT="-lcrypt"
+
+fi
+
+
+
+    found=false
+    overriden_with_ssl=false
+
+# Check whether --with-openssl was given.
+if test "${with_openssl+set}" = set; then :
+  withval=$with_openssl;
+            case "$withval" in
+            "" | y | ye | yes | n | no)
+            as_fn_error $? "Invalid --with-openssl value" "$LINENO" 5
+              ;;
+            *) ssldirs="$withval"
+               overriden_with_ssl=true
+              ;;
+            esac
+
+else
+
+            # if pkg-config is installed and openssl has installed a .pc file,
+            # then use that information and don't search ssldirs
+            # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+            if test x"$PKG_CONFIG" != x""; then
+                OPENSSL_LDFLAGS=`$PKG_CONFIG openssl --libs-only-L 2>/dev/null`
+                if test $? = 0; then
+                    OPENSSL_LIBS=`$PKG_CONFIG openssl --libs-only-l 2>/dev/null`
+                    OPENSSL_INCLUDES=`$PKG_CONFIG openssl --cflags-only-I 2>/dev/null`
+                    found=true
+                fi
+            fi
+
+            # no such luck; use some default ssldirs
+            if ! $found; then
+                ssldirs="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/sfw /usr/local /opt/local /usr"
+            fi
+
+
+fi
+
+
+
+    # note that we #include <openssl/foo.h>, so the OpenSSL headers have to be in
+    # an 'openssl' subdirectory
+
+    if ! $found; then
+        OPENSSL_INCLUDES=
+        for ssldir in $ssldirs; do
+            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for openssl/ssl.h in $ssldir" >&5
+$as_echo_n "checking for openssl/ssl.h in $ssldir... " >&6; }
+            if test -f "$ssldir/include/openssl/ssl.h"; then
+                OPENSSL_INCLUDES="-I$ssldir/include"
+                if test -d "$ssldir/lib64"; then
+                  OPENSSL_LDFLAGS="-L$ssldir/lib64"
+                  if test "$overriden_with_ssl"; then
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-rpath ${ssldir}/lib64\""
+    LIBTOOL_LINK_FLAGS="-rpath ${ssldir}/lib64"
+  else
+    ats_addto_bugger="-rpath ${ssldir}/lib64"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+                  fi
+                else
+                  OPENSSL_LDFLAGS="-L$ssldir/lib"
+                  if test "$overriden_with_ssl"; then
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-rpath ${ssldir}/lib\""
+    LIBTOOL_LINK_FLAGS="-rpath ${ssldir}/lib"
+  else
+    ats_addto_bugger="-rpath ${ssldir}/lib"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+                  fi
+                fi
+                OPENSSL_LIBS="-lssl -lcrypto"
+                found=true
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+                break
+            else
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+            fi
+        done
+
+        # if the file wasn't found, well, go ahead and try the link anyway -- maybe
+        # it will just work!
+    fi
+
+    # try the preprocessor and linker with our new flags,
+    # being careful not to pollute the global LIBS, LDFLAGS, and CPPFLAGS
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compiling and linking against OpenSSL works" >&5
+$as_echo_n "checking whether compiling and linking against OpenSSL works... " >&6; }
+    echo "Trying link with OPENSSL_LDFLAGS=$OPENSSL_LDFLAGS;" \
+        "OPENSSL_LIBS=$OPENSSL_LIBS; OPENSSL_INCLUDES=$OPENSSL_INCLUDES" >&5
+
+    save_LIBS="$LIBS"
+    save_LDFLAGS="$LDFLAGS"
+    save_CPPFLAGS="$CPPFLAGS"
+    LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
+    LIBS="$OPENSSL_LIBS $LIBS"
+    CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS"
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <openssl/ssl.h>
+int
+main ()
+{
+SSL_new(NULL)
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+    enable_crypto=yes
+
+
+else
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+    as_fn_error $? "failed to find OpenSSL" "$LINENO" 5
+    enable_crypto=no
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    CPPFLAGS="$save_CPPFLAGS"
+    LDFLAGS="$save_LDFLAGS"
+    LIBS="$save_LIBS"
+
+
+
+
+
+
+  if test "x${enable_crypto}" = "xyes"; then
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"$OPENSSL_LDFLAGS\""
+    LDFLAGS="$OPENSSL_LDFLAGS"
+  else
+    ats_addto_bugger="$OPENSSL_LDFLAGS"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"$OPENSSL_INCLUDES\""
+    CPPFLAGS="$OPENSSL_INCLUDES"
+  else
+    ats_addto_bugger="$OPENSSL_INCLUDES"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+
+
+
+#
+# Check for NextProtocolNegotiation TLS extension support.
+
+  enable_tls_npn=yes
+  _npn_saved_LIBS=$LIBS
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"$OPENSSL_LIBS\""
+    LIBS="$OPENSSL_LIBS"
+  else
+    ats_addto_bugger="$OPENSSL_LIBS"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+  for ac_func in SSL_CTX_set_next_protos_advertised_cb SSL_CTX_set_next_proto_select_cb SSL_select_next_proto SSL_get0_next_proto_negotiated
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  enable_tls_npn=no
+
+fi
+done
+
+  LIBS=$_npn_saved_LIBS
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable Next Protocol Negotiation TLS extension support" >&5
+$as_echo_n "checking whether to enable Next Protocol Negotiation TLS extension support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_tls_npn" >&5
+$as_echo "$enable_tls_npn" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="tls_npn"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+
+#
+# Check for ALPN TLS extension support.
+
+  enable_tls_alpn=yes
+  _alpn_saved_LIBS=$LIBS
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"$OPENSSL_LIBS\""
+    LIBS="$OPENSSL_LIBS"
+  else
+    ats_addto_bugger="$OPENSSL_LIBS"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+  for ac_func in SSL_CTX_set_alpn_protos SSL_CTX_set_alpn_select_cb SSL_get0_alpn_selected SSL_select_next_proto
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  enable_tls_alpn=no
+
+fi
+done
+
+  LIBS=$_alpn_saved_LIBS
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable Application Layer Protocol Negotiation TLS extension support" >&5
+$as_echo_n "checking whether to enable Application Layer Protocol Negotiation TLS extension support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_tls_alpn" >&5
+$as_echo "$enable_tls_alpn" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="tls_alpn"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+#
+# Check for EC key support.
+
+
+  _eckeys_saved_LIBS=$LIBS
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"$OPENSSL_LIBS\""
+    LIBS="$OPENSSL_LIBS"
+  else
+    ats_addto_bugger="$OPENSSL_LIBS"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+  for ac_header in openssl/ec.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "openssl/ec.h" "ac_cv_header_openssl_ec_h" "$ac_includes_default"
+if test "x$ac_cv_header_openssl_ec_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_OPENSSL_EC_H 1
+_ACEOF
+
+fi
+
+done
+
+  for ac_func in EC_KEY_new_by_curve_name
+do :
+  ac_fn_c_check_func "$LINENO" "EC_KEY_new_by_curve_name" "ac_cv_func_EC_KEY_new_by_curve_name"
+if test "x$ac_cv_func_EC_KEY_new_by_curve_name" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EC_KEY_NEW_BY_CURVE_NAME 1
+_ACEOF
+ enable_tls_eckey=yes
+else
+  enable_tls_eckey=no
+fi
+done
+
+  LIBS=$_eckeys_saved_LIBS
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether EC keys are supported" >&5
+$as_echo_n "checking whether EC keys are supported... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_tls_eckey" >&5
+$as_echo "$enable_tls_eckey" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="tls_eckey"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+
+#
+# Check for ServerNameIndication TLS extension support.
+
+  _sni_saved_LIBS=$LIBS
+  enable_tls_sni=yes
+
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"$OPENSSL_LIBS\""
+    LIBS="$OPENSSL_LIBS"
+  else
+    ats_addto_bugger="$OPENSSL_LIBS"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+  for ac_header in openssl/tls1.h openssl/ssl.h openssl/ts.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+  # We are looking for SSL_CTX_set_tlsext_servername_callback, but it's a
+  # macro, so AC_CHECK_FUNCS is not going to do the business.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSL_CTX_set_tlsext_servername_callback" >&5
+$as_echo_n "checking for SSL_CTX_set_tlsext_servername_callback... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#if HAVE_OPENSSL_SSL_H
+#include <openssl/ssl.h>
+#endif
+#if HAVE_OPENSSL_TLS1_H
+#include <openssl/tls1.h>
+#endif
+
+int
+main ()
+{
+SSL_CTX_set_tlsext_servername_callback(NULL, NULL);
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    enable_tls_sni=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+  for ac_func in SSL_get_servername
+do :
+  ac_fn_c_check_func "$LINENO" "SSL_get_servername" "ac_cv_func_SSL_get_servername"
+if test "x$ac_cv_func_SSL_get_servername" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SSL_GET_SERVERNAME 1
+_ACEOF
+
+else
+  enable_tls_sni=no
+fi
+done
+
+
+  LIBS=$_sni_saved_LIBS
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable ServerNameIndication TLS extension support" >&5
+$as_echo_n "checking whether to enable ServerNameIndication TLS extension support... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_tls_sni" >&5
+$as_echo "$enable_tls_sni" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="tls_sni"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+
+#
+# Check for zlib presence and usability
+
+enable_zlib=no
+
+# Check whether --with-zlib was given.
+if test "${with_zlib+set}" = set; then :
+  withval=$with_zlib;
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    zlib_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_zlib=yes
+      case "$withval" in
+      *":"*)
+        zlib_include="`echo $withval |sed -e 's/:.*$//'`"
+        zlib_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for zlib includes in $zlib_include libs in $zlib_ldflags " >&5
+$as_echo_n "checking checking for zlib includes in $zlib_include libs in $zlib_ldflags ... " >&6; }
+        ;;
+      *)
+        zlib_include="$withval/include"
+        zlib_ldflags="$withval/lib"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for zlib includes in $withval" >&5
+$as_echo_n "checking checking for zlib includes in $withval... " >&6; }
+        ;;
+      esac
+    fi
+  fi
+
+fi
+
+
+if test "x$zlib_base_dir" = "x"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for zlib location" >&5
+$as_echo_n "checking for zlib location... " >&6; }
+  if ${ats_cv_zlib_dir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  for dir in /usr/local /usr ; do
+    if test -d $dir && test -f $dir/include/zlib.h; then
+      ats_cv_zlib_dir=$dir
+      break
+    fi
+  done
+
+fi
+
+  zlib_base_dir=$ats_cv_zlib_dir
+  if test "x$zlib_base_dir" = "x"; then
+    enable_zlib=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  else
+    enable_zlib=yes
+    zlib_include="$zlib_base_dir/include"
+    zlib_ldflags="$zlib_base_dir/lib"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $zlib_base_dir" >&5
+$as_echo "$zlib_base_dir" >&6; }
+  fi
+else
+  if test -d $zlib_include && test -d $zlib_ldflags && test -f $zlib_include/zlib.h; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  fi
+fi
+
+zlibh=0
+if test "$enable_zlib" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  zlib_have_headers=0
+  zlib_have_libs=0
+  if test "$zlib_base_dir" != "/usr"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${zlib_include}\""
+    CPPFLAGS="-I${zlib_include}"
+  else
+    ats_addto_bugger="-I${zlib_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${zlib_ldflags}\""
+    LDFLAGS="-L${zlib_ldflags}"
+  else
+    ats_addto_bugger="-L${zlib_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-rpath ${zlib_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-rpath ${zlib_ldflags}"
+  else
+    ats_addto_bugger="-rpath ${zlib_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing compressBound" >&5
+$as_echo_n "checking for library containing compressBound... " >&6; }
+if ${ac_cv_search_compressBound+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char compressBound ();
+int
+main ()
+{
+return compressBound ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' z; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_compressBound=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_compressBound+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_compressBound+:} false; then :
+
+else
+  ac_cv_search_compressBound=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_compressBound" >&5
+$as_echo "$ac_cv_search_compressBound" >&6; }
+ac_res=$ac_cv_search_compressBound
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  zlib_have_libs=1
+fi
+
+  if test "$zlib_have_libs" != "0"; then
+
+for ac_header in zlib.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zlib.h" "ac_cv_header_zlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_zlib_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZLIB_H 1
+_ACEOF
+ zlib_have_headers=1
+fi
+
+done
+
+for tsc_i in zlib.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+  fi
+  if test "$zlib_have_headers" != "0"; then
+    LIBZ=-lz
+
+  else
+    enable_zlib=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+
+
+
+#
+# Check for lzma presence and usability
+
+enable_lzma=no
+
+# Check whether --with-lzma was given.
+if test "${with_lzma+set}" = set; then :
+  withval=$with_lzma;
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    lzma_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_lzma=yes
+      case "$withval" in
+      *":"*)
+        lzma_include="`echo $withval |sed -e 's/:.*$//'`"
+        lzma_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for lzma includes in $lzma_include libs in $lzma_ldflags " >&5
+$as_echo_n "checking checking for lzma includes in $lzma_include libs in $lzma_ldflags ... " >&6; }
+        ;;
+      *)
+        lzma_include="$withval/include"
+        lzma_ldflags="$withval/lib"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for lzma includes in $withval" >&5
+$as_echo_n "checking checking for lzma includes in $withval... " >&6; }
+        ;;
+      esac
+    fi
+  fi
+
+fi
+
+
+if test "x$lzma_base_dir" = "x"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lzma location" >&5
+$as_echo_n "checking for lzma location... " >&6; }
+  if ${ats_cv_lzma_dir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  for dir in /usr/local /usr ; do
+    if test -d $dir && test -f $dir/include/lzma.h; then
+      ats_cv_lzma_dir=$dir
+      break
+    fi
+  done
+
+fi
+
+  lzma_base_dir=$ats_cv_lzma_dir
+  if test "x$lzma_base_dir" = "x"; then
+    enable_lzma=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  else
+    enable_lzma=yes
+    lzma_include="$lzma_base_dir/include"
+    lzma_ldflags="$lzma_base_dir/lib"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lzma_base_dir" >&5
+$as_echo "$lzma_base_dir" >&6; }
+  fi
+else
+  if test -d $lzma_include && test -d $lzma_ldflags && test -f $lzma_include/lzma.h; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  fi
+fi
+
+lzmah=0
+if test "$enable_lzma" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  lzma_have_headers=0
+  lzma_have_libs=0
+  if test "$lzma_base_dir" != "/usr"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${lzma_include}\""
+    CPPFLAGS="-I${lzma_include}"
+  else
+    ats_addto_bugger="-I${lzma_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${lzma_ldflags}\""
+    LDFLAGS="-L${lzma_ldflags}"
+  else
+    ats_addto_bugger="-L${lzma_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${lzma_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${lzma_ldflags}"
+  else
+    ats_addto_bugger="-R${lzma_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing lzma_code" >&5
+$as_echo_n "checking for library containing lzma_code... " >&6; }
+if ${ac_cv_search_lzma_code+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char lzma_code ();
+int
+main ()
+{
+return lzma_code ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' lzma; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_lzma_code=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_lzma_code+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_lzma_code+:} false; then :
+
+else
+  ac_cv_search_lzma_code=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_lzma_code" >&5
+$as_echo "$ac_cv_search_lzma_code" >&6; }
+ac_res=$ac_cv_search_lzma_code
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  lzma_have_libs=1
+fi
+
+  if test "$lzma_have_libs" != "0"; then
+
+for ac_header in lzma.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "lzma.h" "ac_cv_header_lzma_h" "$ac_includes_default"
+if test "x$ac_cv_header_lzma_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LZMA_H 1
+_ACEOF
+ lzma_have_headers=1
+fi
+
+done
+
+for tsc_i in lzma.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+  fi
+  if test "$lzma_have_headers" != "0"; then
+    LIBLZMA=-llzma
+
+  else
+    enable_lzma=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+
+
+
+#
+# Tcl macros provided by build/tcl.m4
+#
+# this will error out if tclConfig.sh is not found
+
+    #
+    # Ok, lets find the tcl configuration
+    # First, look for one uninstalled.
+    # the alternative search directory is invoked by --with-tcl
+    #
+
+    if test x"${no_tcl}" = x ; then
+	# we reset no_tcl in case something fails here
+	no_tcl=true
+
+# Check whether --with-tcl was given.
+if test "${with_tcl+set}" = set; then :
+  withval=$with_tcl; with_tclconfig="${withval}"
+fi
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Tcl configuration" >&5
+$as_echo_n "checking for Tcl configuration... " >&6; }
+	if ${ac_cv_c_tclconfig+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+
+	    # First check to see if --with-tcl was specified.
+	    if test x"${with_tclconfig}" != x ; then
+		case "${with_tclconfig}" in
+		    */tclConfig.sh )
+			if test -f "${with_tclconfig}"; then
+			    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself" >&5
+$as_echo "$as_me: WARNING: --with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself" >&2;}
+			    with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
+			fi ;;
+		esac
+		if test -f "${with_tclconfig}/tclConfig.sh" ; then
+		    ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
+		else
+		    as_fn_error $? "${with_tclconfig} directory doesn't contain tclConfig.sh" "$LINENO" 5
+		fi
+	    fi
+
+	    # then check for a private Tcl installation
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in \
+			../tcl \
+			`ls -dr ../tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr ../tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr ../tcl[8-9].[0-9]* 2>/dev/null` \
+			../../tcl \
+			`ls -dr ../../tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr ../../tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr ../../tcl[8-9].[0-9]* 2>/dev/null` \
+			../../../tcl \
+			`ls -dr ../../../tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr ../../../tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr ../../../tcl[8-9].[0-9]* 2>/dev/null` ; do
+		    if test -f "$i/unix/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # on Darwin, check in Framework installation locations
+	    if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tclconfig}" = x ; then
+		for i in "`xcrun --show-sdk-path 2>/dev/null`/usr/lib" \
+                        `ls -d ~/Library/Frameworks 2>/dev/null` \
+			`ls -d /Library/Frameworks 2>/dev/null` \
+			`ls -d /Network/Library/Frameworks 2>/dev/null` \
+			`ls -d /System/Library/Frameworks 2>/dev/null` \
+			; do
+		    if test -f "$i/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
+			break
+		    elif test -f "$i/Tcl.framework/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few common install locations
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in `ls -d ${libdir} 2>/dev/null` \
+			`ls -d ${exec_prefix}/lib 2>/dev/null` \
+			`ls -dr ${exec_prefix}/lib/tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr ${exec_prefix}/lib/tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr ${exec_prefix}/lib/tcl[8-9].[0-9]* 2>/dev/null` \
+			`ls -d ${prefix}/lib 2>/dev/null` \
+			`ls -dr ${prefix}/lib/tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr ${prefix}/lib/tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr ${prefix}/lib/tcl[8-9].[0-9]* 2>/dev/null` \
+			`ls -d /usr/local/lib 2>/dev/null` \
+			`ls -dr /usr/local/lib/tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr /usr/local/lib/tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr /usr/local/lib/tcl[8-9].[0-9]* 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
+			`ls -dr /usr/lib64/tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr /usr/lib64/tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr /usr/lib64/tcl[8-9].[0-9]* 2>/dev/null` \
+			`ls -d /usr/contrib/lib 2>/dev/null` \
+			`ls -dr /usr/contrib/lib/tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr /usr/contrib/lib/tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr /usr/contrib/lib/tcl[8-9].[0-9]* 2>/dev/null` \
+			`ls -d /usr/lib 2>/dev/null` \
+			`ls -dr /usr/lib/tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr /usr/lib/tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr /usr/lib/tcl[8-9].[0-9]* 2>/dev/null` \
+			; do
+		    if test -f "$i/tclConfig.sh" ; then
+			ac_cv_c_tclconfig="`(cd $i; pwd)`"
+			break
+		    fi
+		done
+	    fi
+
+	    # check in a few other private locations
+	    if test x"${ac_cv_c_tclconfig}" = x ; then
+		for i in \
+			${srcdir}/../tcl \
+			`ls -dr ${srcdir}/../tcl[8-9].[0-9].[0-9]* 2>/dev/null` \
+			`ls -dr ${srcdir}/../tcl[8-9].[0-9] 2>/dev/null` \
+			`ls -dr ${srcdir}/../tcl[8-9].[0-9]* 2>/dev/null` ; do
+		    if test -f "$i/unix/tclConfig.sh" ; then
+		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+		    break
+		fi
+		done
+	    fi
+
+fi
+
+
+	if test x"${ac_cv_c_tclconfig}" = x ; then
+	    TCL_BIN_DIR="# no Tcl configs found"
+	    as_fn_error $? "Can't find Tcl configuration, install the TCL dev package" "$LINENO" 5
+	else
+	    no_tcl=
+	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: found ${TCL_BIN_DIR}/tclConfig.sh" >&5
+$as_echo "found ${TCL_BIN_DIR}/tclConfig.sh" >&6; }
+	fi
+    fi
+
+
+# if tclConfig.sh loads properly, assume libraries are there and working
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for existence of ${TCL_BIN_DIR}/tclConfig.sh" >&5
+$as_echo_n "checking for existence of ${TCL_BIN_DIR}/tclConfig.sh... " >&6; }
+
+    if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: loading" >&5
+$as_echo "loading" >&6; }
+	. "${TCL_BIN_DIR}/tclConfig.sh"
+    else
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: could not find ${TCL_BIN_DIR}/tclConfig.sh" >&5
+$as_echo "could not find ${TCL_BIN_DIR}/tclConfig.sh" >&6; }
+    fi
+
+    # eval is required to do the TCL_DBGX substitution
+    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
+    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
+
+    # If the TCL_BIN_DIR is the build directory (not the install directory),
+    # then set the common variable name to the value of the build variables.
+    # For example, the variable TCL_LIB_SPEC will be set to the value
+    # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
+    # instead of TCL_BUILD_LIB_SPEC since it will work with both an
+    # installed and uninstalled version of Tcl.
+    if test -f "${TCL_BIN_DIR}/Makefile" ; then
+        TCL_LIB_SPEC="${TCL_BUILD_LIB_SPEC}"
+        TCL_STUB_LIB_SPEC="${TCL_BUILD_STUB_LIB_SPEC}"
+        TCL_STUB_LIB_PATH="${TCL_BUILD_STUB_LIB_PATH}"
+    elif test "`uname -s`" = "Darwin"; then
+	# If Tcl was built as a framework, attempt to use the libraries
+	# from the framework at the given location so that linking works
+	# against Tcl.framework installed in an arbitary location.
+	case ${TCL_DEFS} in
+	    *TCL_FRAMEWORK*)
+		if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
+		    for i in "`cd "${TCL_BIN_DIR}"; pwd`" \
+			     "`cd "${TCL_BIN_DIR}"/../..; pwd`"; do
+			if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
+			    TCL_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TCL_LIB_FILE}"
+			    break
+			fi
+		    done
+		fi
+		if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
+		    TCL_STUB_LIB_SPEC="-L`echo "${TCL_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TCL_STUB_LIB_FLAG}"
+		    TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
+		fi
+		;;
+	esac
+    fi
+
+    # eval is required to do the TCL_DBGX substitution
+    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
+    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
+    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
+    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# expect tclConfig.sh to populate TCL_LIB_FLAG and TCL_INCLUDE_SPEC
+if test "$host_os_def" == "darwin"; then
+    TCL_LIB_SPEC="-ltcl" # OSX fails to populate this variable
+fi
+LIBTCL=$TCL_LIB_SPEC
+
+
+
+if test "x${TCL_INCLUDE_SPEC}" != "x-I/usr/include"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"$TCL_INCLUDE_SPEC\""
+    CPPFLAGS="$TCL_INCLUDE_SPEC"
+  else
+    ats_addto_bugger="$TCL_INCLUDE_SPEC"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+fi
+
+#
+# Check for XML parser
+#
+
+  enable_xml=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking \"For XML parser\"" >&5
+$as_echo_n "checking \"For XML parser\"... " >&6; }
+
+# Check whether --with-xml was given.
+if test "${with_xml+set}" = set; then :
+  withval=$with_xml;
+    if test "$withval" = "expat" ; then
+
+enable_expat=no
+
+# Check whether --with-expat was given.
+if test "${with_expat+set}" = set; then :
+  withval=$with_expat;
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    expat_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_expat=yes
+      case "$withval" in
+      *":"*)
+        expat_include="`echo $withval |sed -e 's/:.*$//'`"
+        expat_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for Expat includes in $expat_include libs in $expat_ldflags " >&5
+$as_echo_n "checking checking for Expat includes in $expat_include libs in $expat_ldflags ... " >&6; }
+        ;;
+      *)
+        expat_include="$withval/include"
+        expat_ldflags="$withval/lib"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for Expat includes in $withval" >&5
+$as_echo_n "checking checking for Expat includes in $withval... " >&6; }
+        ;;
+      esac
+    fi
+  fi
+
+fi
+
+
+if test "x$expat_base_dir" = "x"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Expat location" >&5
+$as_echo_n "checking for Expat location... " >&6; }
+  if ${ats_cv_expat_dir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  _expat_dir_list=""
+  case $host_os_def in
+    darwin)
+    for dir in "`xcrun -show-sdk-path 2>/dev/null`/usr" /usr/local /usr; do
+      if test -d $dir && test -f $dir/include/expat.h; then
+        ats_cv_expat_dir=$dir
+        break
+      fi
+    done
+    ;;
+    *)
+    for dir in /usr/local /usr; do
+      if test -d $dir && test -f $dir/include/expat.h; then
+        ats_cv_expat_dir=$dir
+        break
+      fi
+    done
+    ;;
+  esac
+
+  unset _expat_dir_list
+
+fi
+
+
+  expat_base_dir=$ats_cv_expat_dir
+  if test "x$expat_base_dir" = "x"; then
+    enable_expat=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  else
+    enable_expat=yes
+    expat_include="$expat_base_dir/include"
+    expat_ldflags="$expat_base_dir/lib"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${expat_base_dir}" >&5
+$as_echo "${expat_base_dir}" >&6; }
+  fi
+else
+  if test -d $expat_include && test -d $expat_ldflags && test -f $expat_include/expat.h; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  fi
+fi
+
+expath=0
+if test "$enable_expat" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  expat_have_headers=0
+  expat_have_libs=0
+  if test "$expat_base_dir" != "/usr"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${expat_include}\""
+    CPPFLAGS="-I${expat_include}"
+  else
+    ats_addto_bugger="-I${expat_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${expat_ldflags}\""
+    LDFLAGS="-L${expat_ldflags}"
+  else
+    ats_addto_bugger="-L${expat_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${expat_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${expat_ldflags}"
+  else
+    ats_addto_bugger="-R${expat_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing XML_SetUserData" >&5
+$as_echo_n "checking for library containing XML_SetUserData... " >&6; }
+if ${ac_cv_search_XML_SetUserData+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XML_SetUserData ();
+int
+main ()
+{
+return XML_SetUserData ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' expat; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_XML_SetUserData=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_XML_SetUserData+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_XML_SetUserData+:} false; then :
+
+else
+  ac_cv_search_XML_SetUserData=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_XML_SetUserData" >&5
+$as_echo "$ac_cv_search_XML_SetUserData" >&6; }
+ac_res=$ac_cv_search_XML_SetUserData
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  expat_have_libs=1
+fi
+
+  if test "$expat_have_libs" != "0"; then
+
+for ac_header in expat.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "expat.h" "ac_cv_header_expat_h" "$ac_includes_default"
+if test "x$ac_cv_header_expat_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EXPAT_H 1
+_ACEOF
+ expat_have_headers=1
+fi
+
+done
+
+for tsc_i in expat.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+  fi
+  if test "$expat_have_headers" != "0"; then
+    enable_xml=yes
+
+    LIBEXPAT="-lexpat"
+
+
+$as_echo "#define HAVE_LIBEXPAT 1" >>confdefs.h
+
+  else
+    enable_expat=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+
+
+    elif test "$withval" = "libxml2" ; then
+
+  enable_libxml2=no
+  libxml2_include=""
+  libxml2_ldflags=""
+
+# Check whether --with-libxml2 was given.
+if test "${with_libxml2+set}" = set; then :
+  withval=$with_libxml2;
+    if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+      if test "$withval" = "yes"; then
+        enable_libxml2=yes
+        libxml2_include="/usr/include/libxml2"
+      elif test "$withval" != "no"; then
+        enable_libxml2=yes
+        libxml2_include="$withval/include/libxml2"
+        libxml2_ldflags="-L$withval/lib"
+      fi
+    fi
+
+fi
+
+  if test ${enable_libxml2} = "no"; then
+    enable_libxml2=yes
+    libxml2_include="/usr/include/libxml2"
+  fi
+  if test ${enable_libxml2} != "no"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking libxml2" >&5
+$as_echo_n "checking libxml2... " >&6; }
+if ${ts_cv_libxml2+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      ts_libxml2_CPPFLAGS=$CPPFLAGS
+      ts_libxml2_LIBS="$LIBS"
+      ts_libxml2_LDFLAGS="$LDFLAGS"
+      CPPFLAGS="$CPPFLAGS -I$libxml2_include"
+      LDFLAGS="$LDFLAGS $libxml2_ldflags"
+      LIBS="$LIBS -lxml2"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <libxml/parser.h>
+int
+main ()
+{
+xmlSAXHandler sax; xmlCreatePushParserCtxt(&sax, NULL, NULL, 0, NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ts_cv_libxml2=yes
+else
+  ts_cv_libxml2=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      CPPFLAGS=$ts_libxml2_CPPFLAGS
+      LIBS=$ts_libxml2_LIBS
+      LDFLAGS=$ts_libxml2_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ts_cv_libxml2" >&5
+$as_echo "$ts_cv_libxml2" >&6; }
+    if test $ts_cv_libxml2 = yes ; then
+
+$as_echo "#define HAVE_LIBXML2 1" >>confdefs.h
+
+      if test -d "$libxml2_include" ; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${libxml2_include}\""
+    CPPFLAGS="-I${libxml2_include}"
+  else
+    ats_addto_bugger="-I${libxml2_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+      fi
+      if test -d "$libxml2_ldflags" ; then
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${libxml2_ldflags}\""
+    LDFLAGS="-L${libxml2_ldflags}"
+  else
+    ats_addto_bugger="-L${libxml2_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${libxml2_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${libxml2_ldflags}"
+  else
+    ats_addto_bugger="-R${libxml2_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+      fi
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"-lxml2\""
+    LIBS="-lxml2"
+  else
+    ats_addto_bugger="-lxml2"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+      enable_xml=yes
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \"Failed to find libxml2\"" >&5
+$as_echo "$as_me: WARNING: \"Failed to find libxml2\"" >&2;}
+    fi
+  fi
+
+    else
+      as_fn_error $? "Unrecognised --with-xml option" "$LINENO" 5
+    fi
+
+else
+
+
+  enable_libxml2=no
+  libxml2_include=""
+  libxml2_ldflags=""
+
+# Check whether --with-libxml2 was given.
+if test "${with_libxml2+set}" = set; then :
+  withval=$with_libxml2;
+    if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+      if test "$withval" = "yes"; then
+        enable_libxml2=yes
+        libxml2_include="/usr/include/libxml2"
+      elif test "$withval" != "no"; then
+        enable_libxml2=yes
+        libxml2_include="$withval/include/libxml2"
+        libxml2_ldflags="-L$withval/lib"
+      fi
+    fi
+
+fi
+
+  if test ${enable_libxml2} = "no"; then
+    enable_libxml2=yes
+    libxml2_include="/usr/include/libxml2"
+  fi
+  if test ${enable_libxml2} != "no"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking libxml2" >&5
+$as_echo_n "checking libxml2... " >&6; }
+if ${ts_cv_libxml2+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      ts_libxml2_CPPFLAGS=$CPPFLAGS
+      ts_libxml2_LIBS="$LIBS"
+      ts_libxml2_LDFLAGS="$LDFLAGS"
+      CPPFLAGS="$CPPFLAGS -I$libxml2_include"
+      LDFLAGS="$LDFLAGS $libxml2_ldflags"
+      LIBS="$LIBS -lxml2"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <libxml/parser.h>
+int
+main ()
+{
+xmlSAXHandler sax; xmlCreatePushParserCtxt(&sax, NULL, NULL, 0, NULL);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ts_cv_libxml2=yes
+else
+  ts_cv_libxml2=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+      CPPFLAGS=$ts_libxml2_CPPFLAGS
+      LIBS=$ts_libxml2_LIBS
+      LDFLAGS=$ts_libxml2_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ts_cv_libxml2" >&5
+$as_echo "$ts_cv_libxml2" >&6; }
+    if test $ts_cv_libxml2 = yes ; then
+
+$as_echo "#define HAVE_LIBXML2 1" >>confdefs.h
+
+      if test -d "$libxml2_include" ; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${libxml2_include}\""
+    CPPFLAGS="-I${libxml2_include}"
+  else
+    ats_addto_bugger="-I${libxml2_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+      fi
+      if test -d "$libxml2_ldflags" ; then
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${libxml2_ldflags}\""
+    LDFLAGS="-L${libxml2_ldflags}"
+  else
+    ats_addto_bugger="-L${libxml2_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${libxml2_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${libxml2_ldflags}"
+  else
+    ats_addto_bugger="-R${libxml2_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+      fi
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"-lxml2\""
+    LIBS="-lxml2"
+  else
+    ats_addto_bugger="-lxml2"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+      enable_xml=yes
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: \"Failed to find libxml2\"" >&5
+$as_echo "$as_me: WARNING: \"Failed to find libxml2\"" >&2;}
+    fi
+  fi
+
+    if test "$enable_xml" = "no"; then
+
+enable_expat=no
+
+# Check whether --with-expat was given.
+if test "${with_expat+set}" = set; then :
+  withval=$with_expat;
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    expat_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_expat=yes
+      case "$withval" in
+      *":"*)
+        expat_include="`echo $withval |sed -e 's/:.*$//'`"
+        expat_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for Expat includes in $expat_include libs in $expat_ldflags " >&5
+$as_echo_n "checking checking for Expat includes in $expat_include libs in $expat_ldflags ... " >&6; }
+        ;;
+      *)
+        expat_include="$withval/include"
+        expat_ldflags="$withval/lib"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for Expat includes in $withval" >&5
+$as_echo_n "checking checking for Expat includes in $withval... " >&6; }
+        ;;
+      esac
+    fi
+  fi
+
+fi
+
+
+if test "x$expat_base_dir" = "x"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Expat location" >&5
+$as_echo_n "checking for Expat location... " >&6; }
+  if ${ats_cv_expat_dir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  _expat_dir_list=""
+  case $host_os_def in
+    darwin)
+    for dir in "`xcrun -show-sdk-path 2>/dev/null`/usr" /usr/local /usr; do
+      if test -d $dir && test -f $dir/include/expat.h; then
+        ats_cv_expat_dir=$dir
+        break
+      fi
+    done
+    ;;
+    *)
+    for dir in /usr/local /usr; do
+      if test -d $dir && test -f $dir/include/expat.h; then
+        ats_cv_expat_dir=$dir
+        break
+      fi
+    done
+    ;;
+  esac
+
+  unset _expat_dir_list
+
+fi
+
+
+  expat_base_dir=$ats_cv_expat_dir
+  if test "x$expat_base_dir" = "x"; then
+    enable_expat=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  else
+    enable_expat=yes
+    expat_include="$expat_base_dir/include"
+    expat_ldflags="$expat_base_dir/lib"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${expat_base_dir}" >&5
+$as_echo "${expat_base_dir}" >&6; }
+  fi
+else
+  if test -d $expat_include && test -d $expat_ldflags && test -f $expat_include/expat.h; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  fi
+fi
+
+expath=0
+if test "$enable_expat" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  expat_have_headers=0
+  expat_have_libs=0
+  if test "$expat_base_dir" != "/usr"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${expat_include}\""
+    CPPFLAGS="-I${expat_include}"
+  else
+    ats_addto_bugger="-I${expat_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${expat_ldflags}\""
+    LDFLAGS="-L${expat_ldflags}"
+  else
+    ats_addto_bugger="-L${expat_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${expat_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${expat_ldflags}"
+  else
+    ats_addto_bugger="-R${expat_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing XML_SetUserData" >&5
+$as_echo_n "checking for library containing XML_SetUserData... " >&6; }
+if ${ac_cv_search_XML_SetUserData+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char XML_SetUserData ();
+int
+main ()
+{
+return XML_SetUserData ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' expat; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_XML_SetUserData=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_XML_SetUserData+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_XML_SetUserData+:} false; then :
+
+else
+  ac_cv_search_XML_SetUserData=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_XML_SetUserData" >&5
+$as_echo "$ac_cv_search_XML_SetUserData" >&6; }
+ac_res=$ac_cv_search_XML_SetUserData
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  expat_have_libs=1
+fi
+
+  if test "$expat_have_libs" != "0"; then
+
+for ac_header in expat.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "expat.h" "ac_cv_header_expat_h" "$ac_includes_default"
+if test "x$ac_cv_header_expat_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EXPAT_H 1
+_ACEOF
+ expat_have_headers=1
+fi
+
+done
+
+for tsc_i in expat.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+  fi
+  if test "$expat_have_headers" != "0"; then
+    enable_xml=yes
+
+    LIBEXPAT="-lexpat"
+
+
+$as_echo "#define HAVE_LIBEXPAT 1" >>confdefs.h
+
+  else
+    enable_expat=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+
+
+    fi
+
+fi
+
+  if test "$enable_xml" = "no"; then
+    as_fn_error $? "An XML parser (expat or libxml2) is required." "$LINENO" 5
+  fi
+
+if test "x${enable_xml}" != "xyes"; then
+  as_fn_error $? "Need at least one XML library, --with-expat is supported" "$LINENO" 5
+fi
+
+for ac_func in clock_gettime kqueue epoll_ctl posix_memalign posix_fadvise posix_madvise posix_fallocate inotify_init
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+for ac_func in lrand48_r srand48_r port_create strlcpy strlcat sysconf getpagesize
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+# Check for eventfd() and sys/eventfd.h (both must exist ...)
+
+for ac_header in sys/eventfd.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/eventfd.h" "ac_cv_header_sys_eventfd_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_eventfd_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_EVENTFD_H 1
+_ACEOF
+
+  if test "x$enable_eventfd" = "xyes"; then :
+
+    for ac_func in eventfd
+do :
+  ac_fn_c_check_func "$LINENO" "eventfd" "ac_cv_func_eventfd"
+if test "x$ac_cv_func_eventfd" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EVENTFD 1
+_ACEOF
+
+fi
+done
+
+
+
+fi
+fi
+
+done
+
+for tsc_i in sys/eventfd.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+for ac_func in eventfd
+do :
+  ac_fn_c_check_func "$LINENO" "eventfd" "ac_cv_func_eventfd"
+if test "x$ac_cv_func_eventfd" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EVENTFD 1
+_ACEOF
+
+fi
+done
+
+
+#
+# Check for mcheck_pedantic(3)
+#
+
+for ac_header in mcheck.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "mcheck.h" "ac_cv_header_mcheck_h" "$ac_includes_default"
+if test "x$ac_cv_header_mcheck_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MCHECK_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in mcheck.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+for ac_func in mcheck_pedantic
+do :
+  ac_fn_c_check_func "$LINENO" "mcheck_pedantic" "ac_cv_func_mcheck_pedantic"
+if test "x$ac_cv_func_mcheck_pedantic" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MCHECK_PEDANTIC 1
+_ACEOF
+
+fi
+done
+
+
+#
+# Check for pcre library
+#
+
+enable_pcre=no
+
+# Check whether --with-pcre was given.
+if test "${with_pcre+set}" = set; then :
+  withval=$with_pcre;
+  if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+    pcre_base_dir="$withval"
+    if test "$withval" != "no"; then
+      enable_pcre=yes
+      case "$withval" in
+      *":"*)
+        pcre_include="`echo $withval |sed -e 's/:.*$//'`"
+        pcre_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for pcre includes in $pcre_include libs in $pcre_ldflags " >&5
+$as_echo_n "checking checking for pcre includes in $pcre_include libs in $pcre_ldflags ... " >&6; }
+        ;;
+      *)
+        pcre_include="$withval/include"
+        pcre_ldflags="$withval/lib"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for pcre includes in $withval" >&5
+$as_echo_n "checking checking for pcre includes in $withval... " >&6; }
+        ;;
+      esac
+    fi
+  fi
+
+else
+
+  # Extract the first word of "pcre-config", so it can be a program name with args.
+set dummy pcre-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_PCRE_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$PCRE_CONFIG"; then
+  ac_cv_prog_PCRE_CONFIG="$PCRE_CONFIG" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_PCRE_CONFIG="pcre-config"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+PCRE_CONFIG=$ac_cv_prog_PCRE_CONFIG
+if test -n "$PCRE_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PCRE_CONFIG" >&5
+$as_echo "$PCRE_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  if test "x$PCRE_CONFIG" != "x"; then
+    enable_pcre=yes
+    pcre_base_dir="`$PCRE_CONFIG --prefix`"
+    pcre_include="`$PCRE_CONFIG --cflags | sed -es/-I//`"
+    pcre_ldflags="`$PCRE_CONFIG --libs | sed -es/-lpcre// -es/-L//`"
+  fi
+
+fi
+
+
+if test "x$pcre_base_dir" = "x"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pcre location" >&5
+$as_echo_n "checking for pcre location... " >&6; }
+  if ${ats_cv_pcre_dir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  for dir in /usr/local /usr ; do
+    if test -d $dir && ( test -f $dir/include/pcre.h || test -f $dir/include/pcre/pcre.h ); then
+      ats_cv_pcre_dir=$dir
+      break
+    fi
+  done
+
+fi
+
+  pcre_base_dir=$ats_cv_pcre_dir
+  if test "x$pcre_base_dir" = "x"; then
+    enable_pcre=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  else
+    enable_pcre=yes
+    pcre_include="$pcre_base_dir/include"
+    pcre_ldflags="$pcre_base_dir/lib"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pcre_base_dir" >&5
+$as_echo "$pcre_base_dir" >&6; }
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pcre headers in $pcre_include" >&5
+$as_echo_n "checking for pcre headers in $pcre_include... " >&6; }
+  if test -d $pcre_include && test -d $pcre_ldflags && ( test -f $pcre_include/pcre.h || test -f $pcre_include/pcre/pcre.h ); then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+  fi
+fi
+
+pcreh=0
+pcre_pcreh=0
+if test "$enable_pcre" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  pcre_have_headers=0
+  pcre_have_libs=0
+  if test "$pcre_base_dir" != "/usr"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${pcre_include}\""
+    CPPFLAGS="-I${pcre_include}"
+  else
+    ats_addto_bugger="-I${pcre_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${pcre_ldflags}\""
+    LDFLAGS="-L${pcre_ldflags}"
+  else
+    ats_addto_bugger="-L${pcre_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${pcre_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${pcre_ldflags}"
+  else
+    ats_addto_bugger="-R${pcre_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pcre_exec" >&5
+$as_echo_n "checking for library containing pcre_exec... " >&6; }
+if ${ac_cv_search_pcre_exec+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pcre_exec ();
+int
+main ()
+{
+return pcre_exec ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' pcre; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_pcre_exec=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_pcre_exec+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_pcre_exec+:} false; then :
+
+else
+  ac_cv_search_pcre_exec=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pcre_exec" >&5
+$as_echo "$ac_cv_search_pcre_exec" >&6; }
+ac_res=$ac_cv_search_pcre_exec
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  pcre_have_libs=1
+fi
+
+  if test "$pcre_have_libs" != "0"; then
+
+for ac_header in pcre.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "pcre.h" "ac_cv_header_pcre_h" "$ac_includes_default"
+if test "x$ac_cv_header_pcre_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_PCRE_H 1
+_ACEOF
+ pcre_have_headers=1
+fi
+
+done
+
+for tsc_i in pcre.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+for ac_header in pcre/pcre.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "pcre/pcre.h" "ac_cv_header_pcre_pcre_h" "$ac_includes_default"
+if test "x$ac_cv_header_pcre_pcre_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_PCRE_PCRE_H 1
+_ACEOF
+ pcre_have_headers=1
+fi
+
+done
+
+for tsc_i in pcre/pcre.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+  fi
+  if test "$pcre_have_headers" != "0"; then
+
+$as_echo "#define HAVE_LIBPCRE 1" >>confdefs.h
+
+    LIBPCRE=-lpcre
+
+  else
+    enable_pcre=no
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+
+
+
+if test "x${enable_pcre}" != "xyes"; then
+  as_fn_error $? "Cannot find pcre library. Configure --with-pcre=DIR" "$LINENO" 5
+fi
+
+has_backtrace=0
+# Check for backtrace() support
+
+for ac_header in execinfo.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "execinfo.h" "ac_cv_header_execinfo_h" "$ac_includes_default"
+if test "x$ac_cv_header_execinfo_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_EXECINFO_H 1
+_ACEOF
+ has_backtrace=1
+fi
+
+done
+
+for tsc_i in execinfo.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+if test "${has_backtrace}" = "1"; then
+  # FreeBSD requires '/usr/ports/devel/libexecinfo' for gdb style backtrace() support
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing backtrace" >&5
+$as_echo_n "checking for library containing backtrace... " >&6; }
+if ${ac_cv_search_backtrace+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char backtrace ();
+int
+main ()
+{
+return backtrace ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' execinfo; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_backtrace=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_backtrace+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_backtrace+:} false; then :
+
+else
+  ac_cv_search_backtrace=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_backtrace" >&5
+$as_echo "$ac_cv_search_backtrace" >&6; }
+ac_res=$ac_cv_search_backtrace
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  have_backtrace_lib=yes
+fi
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No backtrace() support found" >&5
+$as_echo "$as_me: WARNING: No backtrace() support found" >&2;}
+fi
+
+
+
+use_epoll=0
+use_kqueue=0
+use_port=0
+if test "$ac_cv_func_epoll_ctl" = "yes"; then
+  use_epoll=1
+  have_good_poller=1
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Using epoll event interface" >&5
+$as_echo "$as_me: Using epoll event interface" >&6;}
+elif test "$ac_cv_func_kqueue" = "yes"; then
+  use_kqueue=1
+  have_good_poller=1
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Using kqueue event interface" >&5
+$as_echo "$as_me: Using kqueue event interface" >&6;}
+elif test "$ac_cv_func_port_create" = "yes"; then
+  use_port=1
+  have_good_poller=1
+  { $as_echo "$as_me:${as_lineno-$LINENO}: Using port event interface" >&5
+$as_echo "$as_me: Using port event interface" >&6;}
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "No suitable polling interface found
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+
+
+
+has_profiler=0
+if test "x${with_profiler}" = "xyes"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing ProfilerStart" >&5
+$as_echo_n "checking for library containing ProfilerStart... " >&6; }
+if ${ac_cv_search_ProfilerStart+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char ProfilerStart ();
+int
+main ()
+{
+return ProfilerStart ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' profiler; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_ProfilerStart=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_ProfilerStart+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_ProfilerStart+:} false; then :
+
+else
+  ac_cv_search_ProfilerStart=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_ProfilerStart" >&5
+$as_echo "$ac_cv_search_ProfilerStart" >&6; }
+ac_res=$ac_cv_search_ProfilerStart
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  LIBPROFILER="-lprofiler"
+
+     has_profiler=1
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "check for profiler failed. Have you installed google-perftools-devel?
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+fi
+
+
+# For SunPro 5.2 - we need the demangle symbol for
+#  ink_stack_trace.cc in lib/ts.  Because this
+#  library is part of the SunPro distribution, we need
+#  check with the C++ compiler since we might be using
+#  SunPro CC for the C++ compiler and gcc for the C compiler
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing cplus_demangle" >&5
+$as_echo_n "checking for library containing cplus_demangle... " >&6; }
+if ${ac_cv_search_cplus_demangle+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char cplus_demangle ();
+int
+main ()
+{
+return cplus_demangle ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' demangle; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_cv_search_cplus_demangle=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_cplus_demangle+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_cplus_demangle+:} false; then :
+
+else
+  ac_cv_search_cplus_demangle=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_cplus_demangle" >&5
+$as_echo "$ac_cv_search_cplus_demangle" >&6; }
+ac_res=$ac_cv_search_cplus_demangle
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  LIBDEMANGLE="-ldemangle"
+
+
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128bit CAS support" >&5
+$as_echo_n "checking for 128bit CAS support... " >&6; }
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+# We need to save and restore compiler flags around this whole block.
+# TS_TRY_COMPILE_NO_WARNING will save and restore flags, so if we do that in the
+# middle, then we can accidentally restore modified flags.
+__saved_CXXFLAGS="${CXXFLAGS}"
+__saved_CFLAGS="${CFLAGS}"
+
+has_128bit_cas=0
+
+ats_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_c_compiler_gnu" = "yes"; then
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ CFLAGS=$(echo $CFLAGS | sed -e 's/^-w$//' -e 's/^-w //' -e 's/ -w$//' -e 's/ -w / /')
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+    __int128_t x = 0;
+    __sync_bool_compare_and_swap(&x,0,10);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    has_128bit_cas=1
+
+else
+
+
+  if test "x$CXXFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CXXFLAGS to \"-mcx16\""
+    CXXFLAGS="-mcx16"
+  else
+    ats_addto_bugger="-mcx16"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CXXFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CXXFLAGS"
+        CXXFLAGS="$CXXFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CFLAGS to \"-mcx16\""
+    CFLAGS="-mcx16"
+  else
+    ats_addto_bugger="-mcx16"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CFLAGS"
+        CFLAGS="$CFLAGS $i"
+      fi
+    done
+  fi
+
+    ats_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_c_compiler_gnu" = "yes"; then
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ CFLAGS=$(echo $CFLAGS | sed -e 's/^-w$//' -e 's/^-w //' -e 's/ -w$//' -e 's/ -w / /')
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+        __int128_t x = 0;
+        __sync_bool_compare_and_swap(&x,0,10);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+        has_128bit_cas=1
+
+else
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+ CFLAGS=$ats_save_CFLAGS
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+ CFLAGS=$ats_save_CFLAGS
+
+
+CXXFLAGS="${__saved_CXXFLAGS}"
+CFLAGS="${__saved_CFLAGS}"
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+if test "x$has_128bit_cas" = "x1"; then :
+
+
+  if test "x$CFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CFLAGS to \"-mcx16\""
+    CFLAGS="-mcx16"
+  else
+    ats_addto_bugger="-mcx16"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CFLAGS"
+        CFLAGS="$CFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$CXXFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CXXFLAGS to \"-mcx16\""
+    CXXFLAGS="-mcx16"
+  else
+    ats_addto_bugger="-mcx16"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CXXFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CXXFLAGS"
+        CXXFLAGS="$CXXFLAGS $i"
+      fi
+    done
+  fi
+
+
+fi
+
+# Check for POSIX capabilities library.
+# If we don't find it, disable checking for header.
+use_posix_cap=0
+if test "x$enable_posix_cap" != "xno"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing cap_set_proc" >&5
+$as_echo_n "checking for library containing cap_set_proc... " >&6; }
+if ${ac_cv_search_cap_set_proc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char cap_set_proc ();
+int
+main ()
+{
+return cap_set_proc ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' cap; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_cap_set_proc=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_cap_set_proc+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_cap_set_proc+:} false; then :
+
+else
+  ac_cv_search_cap_set_proc=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_cap_set_proc" >&5
+$as_echo "$ac_cv_search_cap_set_proc" >&6; }
+ac_res=$ac_cv_search_cap_set_proc
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  LIBCAP="-lcap"
+
+     use_posix_cap=1
+
+else
+
+     if test "x$enable_posix_cap" == "xyes"; then :
+
+      { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "POSIX capabilities enabled but system library not found.
+See \`config.log' for more details" "$LINENO" 5; }
+
+else
+
+      enable_posix_cap=no
+
+fi
+
+
+fi
+
+
+fi
+
+
+#
+# If the OS is linux, we can use the '--enable-linux-native-aio' option to
+# replace the aio thread mode. Effective only on the linux system.
+#
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable Linux native AIO" >&5
+$as_echo_n "checking whether to enable Linux native AIO... " >&6; }
+# Check whether --enable-linux-native-aio was given.
+if test "${enable_linux_native_aio+set}" = set; then :
+  enableval=$enable_linux_native_aio; enable_linux_native_aio="${enableval}"
+else
+  enable_linux_native_aio=no
+
+fi
+
+
+if test "x$enable_linux_native_aio" = "xyes"; then :
+
+  if test $host_os_def  != "linux"; then
+    as_fn_error $? "Linux native AIO can only be enabled on Linux systems" "$LINENO" 5
+  fi
+
+  for ac_header in libaio.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "libaio.h" "ac_cv_header_libaio_h" "$ac_includes_default"
+if test "x$ac_cv_header_libaio_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBAIO_H 1
+_ACEOF
+
+else
+  as_fn_error $? "Linux native AIO requires libaio.h" "$LINENO" 5
+
+fi
+
+done
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing io_submit" >&5
+$as_echo_n "checking for library containing io_submit... " >&6; }
+if ${ac_cv_search_io_submit+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char io_submit ();
+int
+main ()
+{
+return io_submit ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' aio; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_io_submit=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_io_submit+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_io_submit+:} false; then :
+
+else
+  ac_cv_search_io_submit=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_io_submit" >&5
+$as_echo "$ac_cv_search_io_submit" >&6; }
+ac_res=$ac_cv_search_io_submit
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+else
+  as_fn_error $? "Linux native AIO requires libaio" "$LINENO" 5
+
+fi
+
+
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_linux_native_aio" >&5
+$as_echo "$enable_linux_native_aio" >&6; }
+
+  tsl_prefix="use"
+  tsl_stem="linux_native_aio"
+  eval "tsl_enable=\$enable_${tsl_stem}"
+  if test "x$tsl_enable" = "xyes"; then :
+  eval "${tsl_prefix}_${tsl_stem}=1"
+else
+  eval "${tsl_prefix}_${tsl_stem}=0"
+
+fi
+
+
+
+# Check for hwloc library.
+# If we don't find it, disable checking for header.
+use_hwloc=0
+
+
+
+
+
+
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKG_CONFIG"; then
+  ac_pt_PKG_CONFIG=$PKG_CONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $ac_pt_PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
+if test -n "$ac_pt_PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+$as_echo "$ac_pt_PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKG_CONFIG" = x; then
+    PKG_CONFIG=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKG_CONFIG=$ac_pt_PKG_CONFIG
+  fi
+else
+  PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+fi
+
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=0.9.0
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	else
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+		PKG_CONFIG=""
+	fi
+fi
+if test "x$enable_hwloc" = "xyes"; then :
+
+  # Use pkg-config, because some distros (*cough* Ubuntu) put hwloc in unusual places.
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for HWLOC" >&5
+$as_echo_n "checking for HWLOC... " >&6; }
+
+if test -n "$HWLOC_CFLAGS"; then
+    pkg_cv_HWLOC_CFLAGS="$HWLOC_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"hwloc\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "hwloc") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_HWLOC_CFLAGS=`$PKG_CONFIG --cflags "hwloc" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$HWLOC_LIBS"; then
+    pkg_cv_HWLOC_LIBS="$HWLOC_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"hwloc\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "hwloc") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_HWLOC_LIBS=`$PKG_CONFIG --libs "hwloc" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        HWLOC_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "hwloc" 2>&1`
+        else
+	        HWLOC_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "hwloc" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$HWLOC_PKG_ERRORS" >&5
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: hwloc not found, try --disable-hwloc" >&5
+$as_echo "$as_me: WARNING: hwloc not found, try --disable-hwloc" >&2;}
+    HWLOC_CFLAGS=""
+
+    HWLOC_LIBS=""
+
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: hwloc not found, try --disable-hwloc" >&5
+$as_echo "$as_me: WARNING: hwloc not found, try --disable-hwloc" >&2;}
+    HWLOC_CFLAGS=""
+
+    HWLOC_LIBS=""
+
+
+else
+	HWLOC_CFLAGS=$pkg_cv_HWLOC_CFLAGS
+	HWLOC_LIBS=$pkg_cv_HWLOC_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+    SAVE_LIBS="$LIBS"
+    LIBS="-lhwloc"
+    ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for hwloc C++ linking" >&5
+$as_echo_n "checking for hwloc C++ linking... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      #include <hwloc.h>
+int
+main ()
+{
+hwloc_topology_t t; hwloc_topology_init(&t); hwloc_get_type_depth(t, HWLOC_OBJ_SOCKET);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+      use_hwloc=1
+
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+      # Old versions of libhwloc don't have HWLOC_OBJ_PU.
+      ac_fn_cxx_check_decl "$LINENO" "HWLOC_OBJ_PU" "ac_cv_have_decl_HWLOC_OBJ_PU" "#include <hwloc.h>
+
+"
+if test "x$ac_cv_have_decl_HWLOC_OBJ_PU" = xyes; then :
+
+$as_echo "#define HAVE_HWLOC_OBJ_PU 1" >>confdefs.h
+
+fi
+
+
+else
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: hwloc not linkable, try --disable-hwloc" >&5
+$as_echo "$as_me: WARNING: hwloc not linkable, try --disable-hwloc" >&2;}
+      HWLOC_CFLAGS=""
+
+      HWLOC_LIBS=""
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    LIBS="$SAVE_LIBS"
+
+fi
+
+fi
+
+
+
+#
+# Check for Maxmind APIs / includes. TODO: Long term, it might make sense to support
+# GeoIP as a "helper" plugin, which other plugins can then use. Such a plugin could
+# then manage which libraries to use via explicit dlopen()'s.
+#
+enable_maxmind_geoip=no
+
+  __saved_LIBS="$LIBS"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing GeoIP_id_by_code" >&5
+$as_echo_n "checking for library containing GeoIP_id_by_code... " >&6; }
+if ${ac_cv_search_GeoIP_id_by_code+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char GeoIP_id_by_code ();
+int
+main ()
+{
+return GeoIP_id_by_code ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' GeoIP; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_GeoIP_id_by_code=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_GeoIP_id_by_code+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_GeoIP_id_by_code+:} false; then :
+
+else
+  ac_cv_search_GeoIP_id_by_code=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_GeoIP_id_by_code" >&5
+$as_echo "$ac_cv_search_GeoIP_id_by_code" >&6; }
+ac_res=$ac_cv_search_GeoIP_id_by_code
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+        case $ac_cv_search_GeoIP_id_by_code in
+    "none required"|"no") ts_cv_search_GeoIP_id_by_code="" ;;
+    *) ts_cv_search_GeoIP_id_by_code=$ac_cv_search_GeoIP_id_by_code ;;
+    esac
+
+  GEOIP_LIBS=$ts_cv_search_GeoIP_id_by_code
+
+for ac_header in GeoIP.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "GeoIP.h" "ac_cv_header_GeoIP_h" "$ac_includes_default"
+if test "x$ac_cv_header_GeoIP_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GEOIP_H 1
+_ACEOF
+  enable_maxmind_geoip=yes
+fi
+
+done
+
+for tsc_i in GeoIP.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+else
+
+        true
+
+fi
+
+
+  LIBS="$__saved_LIBS"
+  unset __saved_LIBS
+
+
+
+ if  test "x${enable_maxmind_geoip}" = x"yes" ; then
+  BUILD_GEOIP_PLUGIN_TRUE=
+  BUILD_GEOIP_PLUGIN_FALSE='#'
+else
+  BUILD_GEOIP_PLUGIN_TRUE='#'
+  BUILD_GEOIP_PLUGIN_FALSE=
+fi
+
+
+# Right now, the healthcheck plugins requires inotify_init (and friends)
+ if  test "$ac_cv_func_inotify_init" = "yes" ; then
+  BUILD_HEALTHCHECK_PLUGIN_TRUE=
+  BUILD_HEALTHCHECK_PLUGIN_FALSE='#'
+else
+  BUILD_HEALTHCHECK_PLUGIN_TRUE='#'
+  BUILD_HEALTHCHECK_PLUGIN_FALSE=
+fi
+
+
+#
+# Check for tcmalloc and jemalloc
+
+enable_jemalloc=no
+
+# Check whether --with-jemalloc was given.
+if test "${with_jemalloc+set}" = set; then :
+  withval=$with_jemalloc;
+  if test "$withval" != "no"; then
+    if test "x${enable_tcmalloc}" = "xyes"; then
+      as_fn_error $? "Cannot compile with both jemalloc and tcmalloc" "$LINENO" 5
+    fi
+    enable_jemalloc=yes
+    jemalloc_base_dir="$withval"
+    case "$withval" in
+      yes)
+        jemalloc_base_dir="/usr"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for jemalloc includes standard directories" >&5
+$as_echo_n "checking checking for jemalloc includes standard directories... " >&6; }
+	;;
+      *":"*)
+        jemalloc_include="`echo $withval |sed -e 's/:.*$//'`"
+        jemalloc_ldflags="`echo $withval |sed -e 's/^.*://'`"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for jemalloc includes in $jemalloc_include libs in $jemalloc_ldflags" >&5
+$as_echo_n "checking checking for jemalloc includes in $jemalloc_include libs in $jemalloc_ldflags... " >&6; }
+        ;;
+      *)
+        jemalloc_include="$withval/include"
+        jemalloc_ldflags="$withval/lib"
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking checking for jemalloc includes in $withval" >&5
+$as_echo_n "checking checking for jemalloc includes in $withval... " >&6; }
+        ;;
+    esac
+  fi
+
+fi
+
+
+jemalloch=0
+if test "$enable_jemalloc" != "no"; then
+  saved_ldflags=$LDFLAGS
+  saved_cppflags=$CPPFLAGS
+  jemalloc_have_headers=0
+  jemalloc_have_libs=0
+  if test "$jemalloc_base_dir" != "/usr"; then
+
+  if test "x$CPPFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting CPPFLAGS to \"-I${jemalloc_include}\""
+    CPPFLAGS="-I${jemalloc_include}"
+  else
+    ats_addto_bugger="-I${jemalloc_include}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $CPPFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to CPPFLAGS"
+        CPPFLAGS="$CPPFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${jemalloc_ldflags}\""
+    LDFLAGS="-L${jemalloc_ldflags}"
+  else
+    ats_addto_bugger="-L${jemalloc_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-R${jemalloc_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-R${jemalloc_ldflags}"
+  else
+    ats_addto_bugger="-R${jemalloc_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+  fi
+  # On Darwin, jemalloc symbols are prefixed with je_. Search for that first, then fall back
+  # to unadorned symbols.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing je_malloc_stats_print" >&5
+$as_echo_n "checking for library containing je_malloc_stats_print... " >&6; }
+if ${ac_cv_search_je_malloc_stats_print+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char je_malloc_stats_print ();
+int
+main ()
+{
+return je_malloc_stats_print ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' jemalloc; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_je_malloc_stats_print=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_je_malloc_stats_print+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_je_malloc_stats_print+:} false; then :
+
+else
+  ac_cv_search_je_malloc_stats_print=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_je_malloc_stats_print" >&5
+$as_echo "$ac_cv_search_je_malloc_stats_print" >&6; }
+ac_res=$ac_cv_search_je_malloc_stats_print
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  jemalloc_have_libs=1
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing malloc_stats_print" >&5
+$as_echo_n "checking for library containing malloc_stats_print... " >&6; }
+if ${ac_cv_search_malloc_stats_print+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char malloc_stats_print ();
+int
+main ()
+{
+return malloc_stats_print ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' jemalloc; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_malloc_stats_print=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_malloc_stats_print+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_malloc_stats_print+:} false; then :
+
+else
+  ac_cv_search_malloc_stats_print=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_malloc_stats_print" >&5
+$as_echo "$ac_cv_search_malloc_stats_print" >&6; }
+ac_res=$ac_cv_search_malloc_stats_print
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  jemalloc_have_libs=1
+fi
+
+
+fi
+
+  if test "$jemalloc_have_libs" != "0"; then
+
+for ac_header in jemalloc/jemalloc.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "jemalloc/jemalloc.h" "ac_cv_header_jemalloc_jemalloc_h" "$ac_includes_default"
+if test "x$ac_cv_header_jemalloc_jemalloc_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_JEMALLOC_JEMALLOC_H 1
+_ACEOF
+ jemalloc_have_headers=1
+fi
+
+done
+
+for tsc_i in jemalloc/jemalloc.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+  fi
+  if test "$jemalloc_have_headers" != "0"; then
+    jemalloch=1
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"-ljemalloc\""
+    LIBS="-ljemalloc"
+  else
+    ats_addto_bugger="-ljemalloc"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+  else
+    CPPFLAGS=$saved_cppflags
+    LDFLAGS=$saved_ldflags
+  fi
+fi
+
+
+
+
+# Check whether --with-tcmalloc-lib was given.
+if test "${with_tcmalloc_lib+set}" = set; then :
+  withval=$with_tcmalloc_lib;
+  with_tcmalloc_lib="$withval"
+
+else
+
+  with_tcmalloc_lib="tcmalloc"
+
+
+fi
+
+
+has_tcmalloc=0
+
+# Check whether --with-tcmalloc was given.
+if test "${with_tcmalloc+set}" = set; then :
+  withval=$with_tcmalloc;
+  if test "$withval" != "no"; then
+    if test "x${enable_jemalloc}" = "xyes"; then
+      as_fn_error $? "Cannot compile with both tcmalloc and jemalloc" "$LINENO" 5
+    fi
+    tcmalloc_have_libs=0
+    if test "x$withval" != "xyes" && test "x$withval" != "x"; then
+      tcmalloc_ldflags="$withval/lib"
+
+  if test "x$LDFLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LDFLAGS to \"-L${tcmalloc_ldflags}\""
+    LDFLAGS="-L${tcmalloc_ldflags}"
+  else
+    ats_addto_bugger="-L${tcmalloc_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LDFLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LDFLAGS"
+        LDFLAGS="$LDFLAGS $i"
+      fi
+    done
+  fi
+
+
+  if test "x$LIBTOOL_LINK_FLAGS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBTOOL_LINK_FLAGS to \"-rpath ${tcmalloc_ldflags}\""
+    LIBTOOL_LINK_FLAGS="-rpath ${tcmalloc_ldflags}"
+  else
+    ats_addto_bugger="-rpath ${tcmalloc_ldflags}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBTOOL_LINK_FLAGS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBTOOL_LINK_FLAGS"
+        LIBTOOL_LINK_FLAGS="$LIBTOOL_LINK_FLAGS $i"
+      fi
+    done
+  fi
+
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing tc_cfree" >&5
+$as_echo_n "checking for library containing tc_cfree... " >&6; }
+if ${ac_cv_search_tc_cfree+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char tc_cfree ();
+int
+main ()
+{
+return tc_cfree ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' ${with_tcmalloc_lib}; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_tc_cfree=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_tc_cfree+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_tc_cfree+:} false; then :
+
+else
+  ac_cv_search_tc_cfree=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_tc_cfree" >&5
+$as_echo "$ac_cv_search_tc_cfree" >&6; }
+ac_res=$ac_cv_search_tc_cfree
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  tcmalloc_have_lib=1
+fi
+
+    if test "$tcmalloc_have_lib" != "0"; then
+
+  if test "x$LIBS" = "x"; then
+    test "x$verbose" = "xyes" && echo "  setting LIBS to \"-l${with_tcmalloc_lib}\""
+    LIBS="-l${with_tcmalloc_lib}"
+  else
+    ats_addto_bugger="-l${with_tcmalloc_lib}"
+    for i in $ats_addto_bugger; do
+      ats_addto_duplicate="0"
+      for j in $LIBS; do
+        if test "x$i" = "x$j"; then
+          ats_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $ats_addto_duplicate = "0"; then
+        test "x$verbose" = "xyes" && echo "  adding \"$i\" to LIBS"
+        LIBS="$LIBS $i"
+      fi
+    done
+  fi
+
+      has_tcmalloc=1
+    fi
+  fi
+
+fi
+
+
+
+
+#
+# Check for libreadline/libedit
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a readline compatible library" >&5
+$as_echo_n "checking for a readline compatible library... " >&6; }
+if ${ax_cv_lib_readline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+    ORIG_LIBS="$LIBS"
+    for readline_lib in edit editline; do
+      for termcap_lib in "" termcap curses ncurses; do
+        if test -z "$termcap_lib"; then
+          TRY_LIB="-l$readline_lib"
+        else
+          TRY_LIB="-l$readline_lib -l$termcap_lib"
+        fi
+        LIBS="$ORIG_LIBS $TRY_LIB"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline ();
+int
+main ()
+{
+return readline ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_lib_readline="$TRY_LIB"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        if test -n "$ax_cv_lib_readline"; then
+          break
+        fi
+      done
+      if test -n "$ax_cv_lib_readline"; then
+        break
+      fi
+    done
+    if test -z "$ax_cv_lib_readline"; then
+      ax_cv_lib_readline="no"
+    fi
+    LIBS="$ORIG_LIBS"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_lib_readline" >&5
+$as_echo "$ax_cv_lib_readline" >&6; }
+
+  if test "$ax_cv_lib_readline" != "no"; then
+    ORIG_LIBS="$LIBS"
+    LIBS="$LIBS $ax_cv_lib_readline"
+    LIBREADLINE=$ax_cv_lib_readline
+
+
+$as_echo "#define HAVE_LIBREADLINE 1" >>confdefs.h
+
+    for ac_header in readline.h readline/readline.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether readline supports history" >&5
+$as_echo_n "checking whether readline supports history... " >&6; }
+if ${ax_cv_lib_readline_history+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+      ax_cv_lib_readline_history="no"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char add_history ();
+int
+main ()
+{
+return add_history ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_lib_readline_history="yes"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_lib_readline_history" >&5
+$as_echo "$ax_cv_lib_readline_history" >&6; }
+    if test "$ax_cv_lib_readline_history" = "yes"; then
+
+$as_echo "#define HAVE_READLINE_HISTORY 1" >>confdefs.h
+
+      for ac_header in history.h readline/history.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+    fi
+    LIBS="$ORIG_LIBS"
+  fi
+
+
+# On Darwin LuaJIT requires magic link options, otherwise it will crash in luaL_openlibs() at startup. See
+# http://luajit.org/install.html.
+case $host_os_def in
+  darwin)
+    TS_LUAJIT_LDFLAGS="-Wl,-pagezero_size,10000 -Wl,-image_base,100000000"
+    ;;
+esac
+
+
+
+
+# We should be able to build http_load if epoll(2) is available.
+ if test x"$ac_cv_func_epoll_ctl" = x"yes"; then
+  BUILD_HTTP_LOAD_TRUE=
+  BUILD_HTTP_LOAD_FALSE='#'
+else
+  BUILD_HTTP_LOAD_TRUE='#'
+  BUILD_HTTP_LOAD_FALSE=
+fi
+
+
+# Check for spdylay library
+if test "x${enable_spdy}" = "xyes"; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SPDYLAY" >&5
+$as_echo_n "checking for SPDYLAY... " >&6; }
+
+if test -n "$SPDYLAY_CFLAGS"; then
+    pkg_cv_SPDYLAY_CFLAGS="$SPDYLAY_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libspdylay\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libspdylay") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_SPDYLAY_CFLAGS=`$PKG_CONFIG --cflags "libspdylay" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$SPDYLAY_LIBS"; then
+    pkg_cv_SPDYLAY_LIBS="$SPDYLAY_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libspdylay\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libspdylay") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_SPDYLAY_LIBS=`$PKG_CONFIG --libs "libspdylay" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        SPDYLAY_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libspdylay" 2>&1`
+        else
+	        SPDYLAY_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libspdylay" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$SPDYLAY_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libspdylay) were not met:
+
+$SPDYLAY_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables SPDYLAY_CFLAGS
+and SPDYLAY_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables SPDYLAY_CFLAGS
+and SPDYLAY_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	SPDYLAY_CFLAGS=$pkg_cv_SPDYLAY_CFLAGS
+	SPDYLAY_LIBS=$pkg_cv_SPDYLAY_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+fi
+
+# -----------------------------------------------------------------------------
+# 5. CHECK FOR HEADER FILES
+
+
+for ac_header in sys/types.h sys/mman.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in sys/types.h sys/mman.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+for ac_header in sys/epoll.h \
+                  sys/event.h \
+                  sys/param.h \
+                  sys/pset.h \
+                  sched.h \
+                  pthread.h \
+                  pthread_np.h \
+                  machine/endian.h \
+                  endian.h \
+                  sys/sysinfo.h \
+                  sys/systeminfo.h \
+                  netinet/in.h \
+                  netinet/in_systm.h \
+                  netinet/tcp.h \
+                  sys/ioctl.h \
+                  sys/byteorder.h \
+                  sys/sockio.h \
+                  sys/prctl.h \
+                  arpa/nameser.h \
+                  arpa/nameser_compat.h \
+                  execinfo.h \
+                  netdb.h \
+                  ctype.h \
+                  siginfo.h \
+                  malloc.h \
+                  wait.h \
+                  float.h \
+                  libgen.h \
+                  values.h \
+                  alloca.h \
+                  cpio.h \
+                  stropts.h \
+                  sys/param.h \
+                  sys/sysmacros.h \
+                  math.h \
+                  stdint.h \
+                  stdbool.h \
+                  net/ppp_defs.h \
+                  ifaddrs.h\
+                  readline/readline.h \
+                  editline/readline.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in sys/epoll.h \
+                  sys/event.h \
+                  sys/param.h \
+                  sys/pset.h \
+                  sched.h \
+                  pthread.h \
+                  pthread_np.h \
+                  machine/endian.h \
+                  endian.h \
+                  sys/sysinfo.h \
+                  sys/systeminfo.h \
+                  netinet/in.h \
+                  netinet/in_systm.h \
+                  netinet/tcp.h \
+                  sys/ioctl.h \
+                  sys/byteorder.h \
+                  sys/sockio.h \
+                  sys/prctl.h \
+                  arpa/nameser.h \
+                  arpa/nameser_compat.h \
+                  execinfo.h \
+                  netdb.h \
+                  ctype.h \
+                  siginfo.h \
+                  malloc.h \
+                  wait.h \
+                  float.h \
+                  libgen.h \
+                  values.h \
+                  alloca.h \
+                  cpio.h \
+                  stropts.h \
+                  sys/param.h \
+                  sys/sysmacros.h \
+                  math.h \
+                  stdint.h \
+                  stdbool.h \
+                  net/ppp_defs.h \
+                  ifaddrs.h\
+                  readline/readline.h \
+                  editline/readline.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+for ac_header in sys/statfs.h sys/statvfs.h sys/disk.h sys/disklabel.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in sys/statfs.h sys/statvfs.h sys/disk.h sys/disklabel.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+for ac_header in sys/sysctl.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "sys/sysctl.h" "ac_cv_header_sys_sysctl_h" "#ifdef HAVE_SYS_PARAM_H
+                    #include <sys/param.h>
+                   #endif
+
+"
+if test "x$ac_cv_header_sys_sysctl_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_SYSCTL_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in sys/sysctl.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+for ac_header in sys/cpuset.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "sys/cpuset.h" "ac_cv_header_sys_cpuset_h" "#ifdef HAVE_SYS_PARAM_H
+                    #include <sys/param.h>
+                   #endif
+
+"
+if test "x$ac_cv_header_sys_cpuset_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_CPUSET_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in sys/cpuset.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+for ac_header in sys/mount.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "sys/mount.h" "ac_cv_header_sys_mount_h" "#ifdef HAVE_SYS_PARAM_H
+                    #include <sys/param.h>
+                   #endif
+
+"
+if test "x$ac_cv_header_sys_mount_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_MOUNT_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in sys/mount.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+for ac_header in arpa/inet.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "arpa/inet.h" "ac_cv_header_arpa_inet_h" "#ifdef HAVE_SYS_TYPES_H
+                    #include <sys/types.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_H
+                    #include <netinet/in.h>
+                   #endif
+
+"
+if test "x$ac_cv_header_arpa_inet_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ARPA_INET_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in arpa/inet.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+for ac_header in netinet/ip.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "netinet/ip.h" "ac_cv_header_netinet_ip_h" "#ifdef HAVE_SYS_TYPES_H
+                    #include <sys/types.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_H
+                    #include <netinet/in.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_SYSTM_H
+                    #include <netinet/in_systm.h>
+                   #endif
+
+"
+if test "x$ac_cv_header_netinet_ip_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_NETINET_IP_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in netinet/ip.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+for ac_header in netinet/ip_icmp.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "netinet/ip_icmp.h" "ac_cv_header_netinet_ip_icmp_h" "#ifdef HAVE_SYS_TYPES_H
+                    #include <sys/types.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_H
+                    #include <netinet/in.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IP_H
+                    #include <netinet/ip.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_SYSTM_H
+                    #include <netinet/in_systm.h>
+                   #endif
+
+"
+if test "x$ac_cv_header_netinet_ip_icmp_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_NETINET_IP_ICMP_H 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in netinet/ip_icmp.h
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+
+
+
+
+# Test for additional pthread interfaces.
+
+# Darwin pthread_setname_np:
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 1-parameter version of pthread_setname_np()" >&5
+$as_echo_n "checking for 1-parameter version of pthread_setname_np()... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#if HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+#if PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+
+int
+main ()
+{
+
+        pthread_setname_np("conftest");
+
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+
+$as_echo "#define HAVE_PTHREAD_SETNAME_NP_1 1" >>confdefs.h
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+# Linux pthread_setname_np:
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 2-parameter version of pthread_setname_np()" >&5
+$as_echo_n "checking for 2-parameter version of pthread_setname_np()... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#if HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+#if PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+
+int
+main ()
+{
+
+        pthread_setname_np(pthread_self(), "conftest");
+
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+
+$as_echo "#define HAVE_PTHREAD_SETNAME_NP_2 1" >>confdefs.h
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+# BSD pthread_set_name_np:
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 2-parameter version of pthread_set_name_np()" >&5
+$as_echo_n "checking for 2-parameter version of pthread_set_name_np()... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+
+#if HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+#if PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+
+int
+main ()
+{
+
+        pthread_set_name_np(pthread_self(), "conftest");
+
+  ;
+  return 0;
+}
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+
+$as_echo "#define HAVE_PTHREAD_SET_NAME_NP_2 1" >>confdefs.h
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+# BSD-derived systems populate the socket length in the structure itself. It's
+# redundant to check all of these, but hey, I need the typing practice.
+ac_fn_c_check_member "$LINENO" "struct sockaddr" "sa_len" "ac_cv_member_struct_sockaddr_sa_len" "#include <netinet/in.h>
+"
+if test "x$ac_cv_member_struct_sockaddr_sa_len" = xyes; then :
+
+fi
+
+ac_fn_c_check_member "$LINENO" "struct sockaddr_in" "sin_len" "ac_cv_member_struct_sockaddr_in_sin_len" "#include <netinet/in.h>
+"
+if test "x$ac_cv_member_struct_sockaddr_in_sin_len" = xyes; then :
+
+fi
+
+ac_fn_c_check_member "$LINENO" "struct sockaddr_in6" "sin6_len" "ac_cv_member_struct_sockaddr_in6_sin6_len" "#include <netinet/in.h>
+"
+if test "x$ac_cv_member_struct_sockaddr_in6_sin6_len" = xyes; then :
+
+fi
+
+
+if test "x${ac_cv_member_struct_sockaddr_sa_len}" = xyes; then
+
+$as_echo "#define HAVE_STRUCT_SOCKADDR_SA_LEN 1" >>confdefs.h
+
+fi
+
+if test "x${ac_cv_member_struct_sockaddr_in_sin_len}" = xyes ; then
+
+$as_echo "#define HAVE_STRUCT_SOCKADDR_IN_SIN_LEN 1" >>confdefs.h
+
+fi
+
+if test "x${ac_cv_member_struct_sockaddr_in6_sin6_len}" = xyes; then
+
+$as_echo "#define HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN 1" >>confdefs.h
+
+fi
+
+if test "x${with_profiler}" = "xyes"; then
+
+for ac_header in google/profiler.h \
+
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for tsc_i in google/profiler.h \
+
+do
+    ac_safe=`echo "$tsc_i" | sed 'y%./+-%__p_%'`
+    tsc_2=`echo "$tsc_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "$tsc_2=1"
+    else
+       eval "$tsc_2=0"
+    fi
+done
+
+fi
+
+if test "x${enable_posix_cap}" != "xno"; then
+  for ac_header in sys/capability.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "sys/capability.h" "ac_cv_header_sys_capability_h" "
+
+"
+if test "x$ac_cv_header_sys_capability_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_CAPABILITY_H 1
+_ACEOF
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Found POSIX capabilities library but not the header sys/capability.h. POSIX capabilities are not a required feature, you can disable then with --disable-posix-cap
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+done
+
+fi
+
+# Check for high-resolution timestamps in struct stat
+ac_fn_c_check_member "$LINENO" "struct stat" "st_mtimespec.tv_nsec" "ac_cv_member_struct_stat_st_mtimespec_tv_nsec" "$ac_includes_default"
+if test "x$ac_cv_member_struct_stat_st_mtimespec_tv_nsec" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC 1
+_ACEOF
+
+
+fi
+
+ac_fn_c_check_member "$LINENO" "struct stat" "st_mtim.tv_nsec" "ac_cv_member_struct_stat_st_mtim_tv_nsec" "$ac_includes_default"
+if test "x$ac_cv_member_struct_stat_st_mtim_tv_nsec" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 1
+_ACEOF
+
+
+fi
+
+
+
+#
+# Configure sockopt value for TPROXY. Look at the enable flag.
+# Value 'no' means user forced disable, don't check anything else.
+#       'auto' means user didn't say, so silently enable/disable
+#              based on success.
+#       A numeric value means enable, don't check, use that value.
+#       Anything else means user forced, fail if value not found
+#       in header file.
+# We can't just include linux/in.h because it's incompatible with
+# netinet/in.h.
+# Verify the file exists (is readable), scan for the value we need,
+# if found export the value and enable use of the value.
+#
+ip_transparent=0
+use_tproxy=0
+tproxy_header=/usr/include/linux/in.h
+tproxy_usage_enable="
+    --enable-tproxy Enable the feature and validate."
+tproxy_usage_default="
+    --enable-tproxy=force Enable using default sockopt value, no validation."
+tproxy_usage_numeric="
+    --enable-tproxy=X where X is numeric
+                      Enable, use X for sockopt value, no validation."
+tproxy_usage_disable="
+    --disable-tproxy Disable feature, no validation."
+proxy_usage="$tproxy_usage_enable$tproxy_usage_default$tproxy_usage_numeric$tproxy_usage_disable"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable transparent proxy" >&5
+$as_echo_n "checking whether to enable transparent proxy... " >&6; }
+if test "x$enable_tproxy" != "xno"; then :
+
+  if test "$use_posix_cap" -eq 0; then :
+
+    if test "x$enable_tproxy" = xauto; then :
+
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+else
+
+      { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "TPROXY feature requires POSIX capabilities.
+See \`config.log' for more details" "$LINENO" 5; }
+
+fi
+
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for TPROXY sockopt IP_TRANSPARENT" >&5
+$as_echo_n "checking for TPROXY sockopt IP_TRANSPARENT... " >&6; }
+    case "$enable_tproxy" in
+      [0-9][0-9]*)
+        ip_transparent=$enable_tproxy
+        use_tproxy=1
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: forced to $ip_transparent" >&5
+$as_echo "forced to $ip_transparent" >&6; }
+        ;;
+      force)
+        ip_transparent=19
+        use_tproxy=1
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: forced to $ip_transparent" >&5
+$as_echo "forced to $ip_transparent" >&6; }
+        ;;
+      yes|auto)
+        if test -r $tproxy_header; then :
+
+          ip_transparent=`$AWK "/^#define[ \t]+IP_TRANSPARENT[ \t]+[0-9]+/{print \\$3}" $tproxy_header`
+          if test "x$ip_transparent" != "x"; then :
+
+            use_tproxy=1
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: set to $ip_transparent" >&5
+$as_echo "set to $ip_transparent" >&6; }
+
+else
+
+            ip_transparent=0
+            if test "x$enable_tproxy" = xauto; then :
+
+             { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+else
+
+              { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+              { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "tproxy feature enabled but the sockopt value was not found in $tproxy_header. Try one of$tproxy_usage_default$tproxy_usage_numeric$tproxy_usage_disable
+See \`config.log' for more details" "$LINENO" 5; }
+
+fi
+
+fi
+
+else
+
+          if test "x$enable_tproxy" = xauto; then :
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+else
+
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+            { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "tproxy feature enabled but the header file $tproxy_header was not readable. Try one of$tproxy_usage_default$tproxy_usage_numeric$tproxy_usage_disable
+See \`config.log' for more details" "$LINENO" 5; }
+
+fi
+
+fi
+        ;;
+      *)
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+        { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Invalid argument to feature tproxy.$tproxy_usage
+See \`config.log' for more details" "$LINENO" 5; }
+        ;;
+      esac
+
+fi
+
+fi
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SO_MARK" >&5
+$as_echo_n "checking for SO_MARK... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/socket.h>
+
+int
+main ()
+{
+
+if( SO_MARK > 0) return 0;
+else return 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  has_so_mark=1
+msg=yes
+else
+
+has_so_mark=0
+msg=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $msg" >&5
+$as_echo "$msg" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for IP_TOS" >&5
+$as_echo_n "checking for IP_TOS... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+
+int
+main ()
+{
+
+if( IP_TOS > 0) return 0;
+else return 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  has_ip_tos=1
+msg=yes
+else
+
+has_ip_tos=0
+msg=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $msg" >&5
+$as_echo "$msg" >&6; }
+
+
+
+default_loopback_iface=""
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for loopback network interface" >&5
+$as_echo_n "checking for loopback network interface... " >&6; }
+case $host_os in
+  linux*)
+    default_loopback_iface=lo
+  ;;
+darwin* | freebsd* | solaris*)
+  default_loopback_iface=lo0
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $default_loopback_iface" >&5
+$as_echo "$default_loopback_iface" >&6; }
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking style of gethostbyname_r routine" >&5
+$as_echo_n "checking style of gethostbyname_r routine... " >&6; }
+if ${ac_cv_gethostbyname_r_style+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ats_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_c_compiler_gnu" = "yes"; then
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ CFLAGS=$(echo $CFLAGS | sed -e 's/^-w$//' -e 's/^-w //' -e 's/ -w$//' -e 's/ -w / /')
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+int
+main ()
+{
+
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0,
+                          (char *) 0, 0, (struct hostent **) 0, &tmp);
+/* use tmp to suppress the warning */
+tmp=0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_gethostbyname_r_style=glibc2
+else
+  ac_cv_gethostbyname_r_style=none
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+ CFLAGS=$ats_save_CFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_gethostbyname_r_style" >&5
+$as_echo "$ac_cv_gethostbyname_r_style" >&6; }
+
+if test "$ac_cv_gethostbyname_r_style" = "glibc2"; then
+  gethostbyname_r_glibc2=1
+
+$as_echo "#define GETHOSTBYNAME_R_GLIBC2 1" >>confdefs.h
+
+else
+  gethostbyname_r_glibc2=0
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking 3rd argument to the gethostbyname_r routines" >&5
+$as_echo_n "checking 3rd argument to the gethostbyname_r routines... " >&6; }
+if ${ac_cv_gethostbyname_r_arg+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ats_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_c_compiler_gnu" = "yes"; then
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ CFLAGS=$(echo $CFLAGS | sed -e 's/^-w$//' -e 's/^-w //' -e 's/ -w$//' -e 's/ -w / /')
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+int
+main ()
+{
+
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0,
+                          (struct hostent_data *) 0);
+/* use tmp to suppress the warning */
+tmp=0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_gethostbyname_r_arg=hostent_data
+else
+  ac_cv_gethostbyname_r_arg=char
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+ CFLAGS=$ats_save_CFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_gethostbyname_r_arg" >&5
+$as_echo "$ac_cv_gethostbyname_r_arg" >&6; }
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking IN6_IS_ADDR_UNSPECIFIED macro works" >&5
+$as_echo_n "checking IN6_IS_ADDR_UNSPECIFIED macro works... " >&6; }
+if ${ac_cv_macro_in6_is_addr_unspecified+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ats_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_c_compiler_gnu" = "yes"; then
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ CFLAGS=$(echo $CFLAGS | sed -e 's/^-w$//' -e 's/^-w //' -e 's/ -w$//' -e 's/ -w / /')
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <netinet/in.h>
+
+int
+main ()
+{
+
+  (void) IN6_IS_ADDR_UNSPECIFIED(0);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_macro_in6_is_addr_unspecified=yes
+else
+  ac_cv_macro_in6_is_addr_unspecified=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+ CFLAGS=$ats_save_CFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_macro_in6_is_addr_unspecified" >&5
+$as_echo "$ac_cv_macro_in6_is_addr_unspecified" >&6; }
+
+has_in6_is_addr_unspecified=1
+if test "x$ac_cv_macro_in6_is_addr_unspecified" = "xno"; then
+  has_in6_is_addr_unspecified=0
+fi
+
+
+
+ac_fn_c_check_type "$LINENO" "struct tcp_info" "ac_cv_type_struct_tcp_info" "
+   #include <netinet/in.h>
+   #include <netinet/tcp.h>
+
+
+"
+if test "x$ac_cv_type_struct_tcp_info" = xyes; then :
+
+$as_echo "#define HAVE_STRUCT_TCP_INFO 1" >>confdefs.h
+
+fi
+
+
+# See if we can build the remap_stats plugin
+if test "x$enable_experimental_plugins" = xyes; then :
+
+    for ac_header in search.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "search.h" "ac_cv_header_search_h" "$ac_includes_default"
+if test "x$ac_cv_header_search_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SEARCH_H 1
+_ACEOF
+
+fi
+
+done
+
+    if test "x$ac_cv_header_search_h" = "xyes"; then :
+
+        ac_fn_c_check_type "$LINENO" "struct hsearch_data" "ac_cv_type_struct_hsearch_data" "#include <search.h>
+"
+if test "x$ac_cv_type_struct_hsearch_data" = xyes; then :
+
+fi
+
+        for ac_func in hcreate_r hsearch_r
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+fi
+
+fi
+ if  test "x$enable_experimental_plugins" = "xyes" -a "x$ac_cv_header_search_h" = "xyes" -a "x$ac_cv_type_struct_hsearch_data" = "xyes" -a "x$ac_cv_func_hcreate_r" = "xyes" -a "x$ac_cv_func_hsearch_r" = "xyes" ; then
+  BUILD_REMAP_STATS_PLUGIN_TRUE=
+  BUILD_REMAP_STATS_PLUGIN_FALSE='#'
+else
+  BUILD_REMAP_STATS_PLUGIN_TRUE='#'
+  BUILD_REMAP_STATS_PLUGIN_FALSE=
+fi
+
+
+ if  test "x$enable_experimental_plugins" = "xyes" -a "x${enable_collapsed_connection_plugin}" != "xno" ; then
+  BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE=
+  BUILD_COLLAPSED_CONNECTION_PLUGIN_FALSE='#'
+else
+  BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE='#'
+  BUILD_COLLAPSED_CONNECTION_PLUGIN_FALSE=
+fi
+
+
+#
+# use modular IOCORE
+#
+iocore_include_dirs="-I\$(top_srcdir)/iocore/eventsystem \
+-I\$(top_srcdir)/iocore/net \
+-I\$(top_srcdir)/iocore/aio \
+-I\$(top_srcdir)/iocore/hostdb \
+-I\$(top_srcdir)/iocore/cache \
+-I\$(top_srcdir)/iocore/cluster \
+-I\$(top_srcdir)/iocore/utils \
+-I\$(top_srcdir)/iocore/dns"
+
+# Testing Framework suffix generation hack
+TFW_PACKAGE_SUFFIX=$os_type
+
+MGMT_DEFS="$MGMT_DEFS -DMGMT_USE_SYSLOG"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# -----------------------------------------------------------------------------
+# 6. OUTPUT FILES
+
+ac_config_files="$ac_config_files Makefile cmd/Makefile cmd/traffic_cop/Makefile cmd/traffic_line/Makefile cmd/traffic_top/Makefile doc/Doxyfile doc/Makefile example/Makefile iocore/Makefile iocore/aio/Makefile iocore/cache/Makefile iocore/cluster/Makefile iocore/dns/Makefile iocore/eventsystem/Makefile iocore/hostdb/Makefile iocore/net/Makefile iocore/utils/Makefile lib/Makefile lib/perl/Makefile lib/perl/lib/Apache/TS.pm lib/records/Makefile lib/ts/Makefile lib/ts/apidefs.h lib/ts/ink_config.h lib/tsconfig/Makefile lib/wccp/Makefile mgmt/Makefile mgmt/api/Makefile mgmt/api/include/Makefile mgmt/cluster/Makefile mgmt/stats/Makefile mgmt/utils/Makefile mgmt/web2/Makefile plugins/Makefile plugins/cacheurl/Makefile plugins/conf_remap/Makefile plugins/gzip/Makefile plugins/header_rewrite/Makefile plugins/libloader/Makefile plugins/regex_remap/Makefile plugins/stats_over_http/Makefile plugins/tcpinfo/Makefile proxy/Makefile proxy/api/ts/Makefile proxy/config/Makefile proxy/config/body_factory/Makefile proxy/config/body_factory/default/Makefile proxy/config/records.config.default proxy/config/storage.config.default proxy/congest/Makefile proxy/hdrs/Makefile proxy/http/Makefile proxy/http/remap/Makefile proxy/logging/Makefile proxy/shared/Makefile proxy/spdy/Makefile rc/Makefile rc/trafficserver rc/trafficserver.conf rc/trafficserver.service rc/trafficserver.xml tools/Makefile tools/tsxs"
+
+
+if test "x$enable_experimental_plugins" = xyes; then :
+
+  ac_config_files="$ac_config_files plugins/experimental/Makefile plugins/experimental/authproxy/Makefile plugins/experimental/background_fetch/Makefile plugins/experimental/balancer/Makefile plugins/experimental/buffer_upload/Makefile plugins/experimental/channel_stats/Makefile plugins/experimental/collapsed_connection/Makefile plugins/experimental/custom_redirect/Makefile plugins/experimental/escalate/Makefile plugins/experimental/esi/Makefile plugins/experimental/geoip_acl/Makefile plugins/experimental/healthchecks/Makefile plugins/experimental/hipes/Makefile plugins/experimental/metalink/Makefile plugins/experimental/remap_stats/Makefile plugins/experimental/regex_revalidate/Makefile plugins/experimental/s3_auth/Makefile plugins/experimental/stale_while_revalidate/Makefile plugins/experimental/ts_lua/Makefile plugins/experimental/url_sig/Makefile plugins/experimental/xdebug/Makefile"
+
+fi
+
+if test "x$enable_cppapi" = xyes; then :
+
+  ac_config_files="$ac_config_files lib/atscppapi/Makefile lib/atscppapi/examples/Makefile lib/atscppapi/examples/async_http_fetch/Makefile lib/atscppapi/examples/async_timer/Makefile lib/atscppapi/examples/clientredirect/Makefile lib/atscppapi/examples/clientrequest/Makefile lib/atscppapi/examples/customresponse/Makefile lib/atscppapi/examples/boom/Makefile lib/atscppapi/examples/globalhook/Makefile lib/atscppapi/examples/gzip_transformation/Makefile lib/atscppapi/examples/helloworld/Makefile lib/atscppapi/examples/intercept/Makefile lib/atscppapi/examples/internal_transaction_handling/Makefile lib/atscppapi/examples/logger_example/Makefile lib/atscppapi/examples/multiple_transaction_hooks/Makefile lib/atscppapi/examples/null_transformation_plugin/Makefile lib/atscppapi/examples/post_buffer/Makefile lib/atscppapi/examples/remap_plugin/Makefile lib/atscppapi/examples/serverresponse/Makefile lib/atscppapi/examples/stat_example/Makefile lib/atscppapi/examples/timeout_example/Makefile lib/atscppapi/examples/transactionhook/Makefile lib/atscppapi/src/Makefile"
+
+fi
+
+
+# -----------------------------------------------------------------------------
+# 7. autoheader TEMPLATES
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${BUILD_TESTS_TRUE}" && test -z "${BUILD_TESTS_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TESTS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${STATIC_LIBTS_TRUE}" && test -z "${STATIC_LIBTS_FALSE}"; then
+  as_fn_error $? "conditional \"STATIC_LIBTS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_WCCP_TRUE}" && test -z "${BUILD_WCCP_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_WCCP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_INTERIM_CACHE_TRUE}" && test -z "${BUILD_INTERIM_CACHE_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_INTERIM_CACHE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_SPDY_TRUE}" && test -z "${BUILD_SPDY_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_SPDY\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_EXPERIMENTAL_PLUGINS_TRUE}" && test -z "${BUILD_EXPERIMENTAL_PLUGINS_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_EXPERIMENTAL_PLUGINS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_EXAMPLE_PLUGINS_TRUE}" && test -z "${BUILD_EXAMPLE_PLUGINS_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_EXAMPLE_PLUGINS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_TEST_TOOLS_TRUE}" && test -z "${BUILD_TEST_TOOLS_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TEST_TOOLS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_CPPAPI_TRUE}" && test -z "${ENABLE_CPPAPI_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_CPPAPI\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_LUAJIT_TRUE}" && test -z "${BUILD_LUAJIT_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_LUAJIT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCCAS_TRUE}" && test -z "${am__fastdepCCAS_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCCAS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HAVE_CXX_11_TRUE}" && test -z "${BUILD_HAVE_CXX_11_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HAVE_CXX_11\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_MANPAGES_TRUE}" && test -z "${BUILD_MANPAGES_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_MANPAGES\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_MANPAGES_TRUE}" && test -z "${BUILD_MANPAGES_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_MANPAGES\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_PERL_LIB_TRUE}" && test -z "${BUILD_PERL_LIB_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_PERL_LIB\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_PERL_LIB_TRUE}" && test -z "${BUILD_PERL_LIB_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_PERL_LIB\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HAVE_LIBCXX_TRUE}" && test -z "${BUILD_HAVE_LIBCXX_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HAVE_LIBCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HAVE_LIBCXX_TRUE}" && test -z "${BUILD_HAVE_LIBCXX_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HAVE_LIBCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_TSTOP_TRUE}" && test -z "${BUILD_TSTOP_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TSTOP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_TSTOP_TRUE}" && test -z "${BUILD_TSTOP_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TSTOP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_TSTOP_TRUE}" && test -z "${BUILD_TSTOP_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TSTOP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_TSTOP_TRUE}" && test -z "${BUILD_TSTOP_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TSTOP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_TSTOP_TRUE}" && test -z "${BUILD_TSTOP_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_TSTOP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HAVE_BOOST_TRUE}" && test -z "${BUILD_HAVE_BOOST_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HAVE_BOOST\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HAVE_BOOST_TRUE}" && test -z "${BUILD_HAVE_BOOST_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HAVE_BOOST\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_GEOIP_PLUGIN_TRUE}" && test -z "${BUILD_GEOIP_PLUGIN_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_GEOIP_PLUGIN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HEALTHCHECK_PLUGIN_TRUE}" && test -z "${BUILD_HEALTHCHECK_PLUGIN_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HEALTHCHECK_PLUGIN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_HTTP_LOAD_TRUE}" && test -z "${BUILD_HTTP_LOAD_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_HTTP_LOAD\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_REMAP_STATS_PLUGIN_TRUE}" && test -z "${BUILD_REMAP_STATS_PLUGIN_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_REMAP_STATS_PLUGIN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE}" && test -z "${BUILD_COLLAPSED_CONNECTION_PLUGIN_FALSE}"; then
+  as_fn_error $? "conditional \"BUILD_COLLAPSED_CONNECTION_PLUGIN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by Apache Traffic Server $as_me 5.0.1, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+      --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <dev@trafficserver.apache.org>.
+Apache Traffic Server home page: <http://trafficserver.apache.org>."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+Apache Traffic Server config.status 5.0.1
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
+want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
+DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
+sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
+lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+sys_lib_dlsearch_path_spec='`$ECHO "$sys_lib_dlsearch_path_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
+predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
+postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
+predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
+postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
+LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
+reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
+reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
+GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
+predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
+postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in SHELL \
+ECHO \
+PATH_SEPARATOR \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+OBJDUMP \
+deplibs_check_method \
+file_magic_cmd \
+file_magic_glob \
+want_nocaseglob \
+DLLTOOL \
+sharedlib_from_linklib_cmd \
+AR \
+AR_FLAGS \
+archiver_list_spec \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+nm_file_list_spec \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_pic \
+lt_prog_compiler_wl \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+MANIFEST_TOOL \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_separator \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib \
+compiler_lib_search_dirs \
+predep_objects \
+postdep_objects \
+predeps \
+postdeps \
+compiler_lib_search_path \
+LD_CXX \
+reload_flag_CXX \
+compiler_CXX \
+lt_prog_compiler_no_builtin_flag_CXX \
+lt_prog_compiler_pic_CXX \
+lt_prog_compiler_wl_CXX \
+lt_prog_compiler_static_CXX \
+lt_cv_prog_compiler_c_o_CXX \
+export_dynamic_flag_spec_CXX \
+whole_archive_flag_spec_CXX \
+compiler_needs_object_CXX \
+with_gnu_ld_CXX \
+allow_undefined_flag_CXX \
+no_undefined_flag_CXX \
+hardcode_libdir_flag_spec_CXX \
+hardcode_libdir_separator_CXX \
+exclude_expsyms_CXX \
+include_expsyms_CXX \
+file_list_spec_CXX \
+compiler_lib_search_dirs_CXX \
+predep_objects_CXX \
+postdep_objects_CXX \
+predeps_CXX \
+postdeps_CXX \
+compiler_lib_search_path_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postlink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+sys_lib_dlsearch_path_spec \
+reload_cmds_CXX \
+old_archive_cmds_CXX \
+old_archive_from_new_cmds_CXX \
+old_archive_from_expsyms_cmds_CXX \
+archive_cmds_CXX \
+archive_expsym_cmds_CXX \
+module_cmds_CXX \
+module_expsym_cmds_CXX \
+export_symbols_cmds_CXX \
+prelink_cmds_CXX \
+postlink_cmds_CXX; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\""
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+xsi_shell='$xsi_shell'
+lt_shell_append='$lt_shell_append'
+
+# See if we are running on zsh, and set the options which allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}" ; then
+   setopt NO_GLOB_SUBST
+fi
+
+
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    TIMESTAMP='$TIMESTAMP'
+    RM='$RM'
+    ofile='$ofile'
+
+
+
+
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "lib/ts/ink_autoconf.h") CONFIG_HEADERS="$CONFIG_HEADERS lib/ts/ink_autoconf.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "cmd/Makefile") CONFIG_FILES="$CONFIG_FILES cmd/Makefile" ;;
+    "cmd/traffic_cop/Makefile") CONFIG_FILES="$CONFIG_FILES cmd/traffic_cop/Makefile" ;;
+    "cmd/traffic_line/Makefile") CONFIG_FILES="$CONFIG_FILES cmd/traffic_line/Makefile" ;;
+    "cmd/traffic_top/Makefile") CONFIG_FILES="$CONFIG_FILES cmd/traffic_top/Makefile" ;;
+    "doc/Doxyfile") CONFIG_FILES="$CONFIG_FILES doc/Doxyfile" ;;
+    "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+    "example/Makefile") CONFIG_FILES="$CONFIG_FILES example/Makefile" ;;
+    "iocore/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/Makefile" ;;
+    "iocore/aio/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/aio/Makefile" ;;
+    "iocore/cache/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/cache/Makefile" ;;
+    "iocore/cluster/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/cluster/Makefile" ;;
+    "iocore/dns/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/dns/Makefile" ;;
+    "iocore/eventsystem/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/eventsystem/Makefile" ;;
+    "iocore/hostdb/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/hostdb/Makefile" ;;
+    "iocore/net/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/net/Makefile" ;;
+    "iocore/utils/Makefile") CONFIG_FILES="$CONFIG_FILES iocore/utils/Makefile" ;;
+    "lib/Makefile") CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
+    "lib/perl/Makefile") CONFIG_FILES="$CONFIG_FILES lib/perl/Makefile" ;;
+    "lib/perl/lib/Apache/TS.pm") CONFIG_FILES="$CONFIG_FILES lib/perl/lib/Apache/TS.pm" ;;
+    "lib/records/Makefile") CONFIG_FILES="$CONFIG_FILES lib/records/Makefile" ;;
+    "lib/ts/Makefile") CONFIG_FILES="$CONFIG_FILES lib/ts/Makefile" ;;
+    "lib/ts/apidefs.h") CONFIG_FILES="$CONFIG_FILES lib/ts/apidefs.h" ;;
+    "lib/ts/ink_config.h") CONFIG_FILES="$CONFIG_FILES lib/ts/ink_config.h" ;;
+    "lib/tsconfig/Makefile") CONFIG_FILES="$CONFIG_FILES lib/tsconfig/Makefile" ;;
+    "lib/wccp/Makefile") CONFIG_FILES="$CONFIG_FILES lib/wccp/Makefile" ;;
+    "mgmt/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/Makefile" ;;
+    "mgmt/api/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/api/Makefile" ;;
+    "mgmt/api/include/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/api/include/Makefile" ;;
+    "mgmt/cluster/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/cluster/Makefile" ;;
+    "mgmt/stats/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/stats/Makefile" ;;
+    "mgmt/utils/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/utils/Makefile" ;;
+    "mgmt/web2/Makefile") CONFIG_FILES="$CONFIG_FILES mgmt/web2/Makefile" ;;
+    "plugins/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/Makefile" ;;
+    "plugins/cacheurl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/cacheurl/Makefile" ;;
+    "plugins/conf_remap/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/conf_remap/Makefile" ;;
+    "plugins/gzip/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/gzip/Makefile" ;;
+    "plugins/header_rewrite/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/header_rewrite/Makefile" ;;
+    "plugins/libloader/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/libloader/Makefile" ;;
+    "plugins/regex_remap/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/regex_remap/Makefile" ;;
+    "plugins/stats_over_http/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/stats_over_http/Makefile" ;;
+    "plugins/tcpinfo/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tcpinfo/Makefile" ;;
+    "proxy/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/Makefile" ;;
+    "proxy/api/ts/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/api/ts/Makefile" ;;
+    "proxy/config/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/config/Makefile" ;;
+    "proxy/config/body_factory/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/config/body_factory/Makefile" ;;
+    "proxy/config/body_factory/default/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/config/body_factory/default/Makefile" ;;
+    "proxy/config/records.config.default") CONFIG_FILES="$CONFIG_FILES proxy/config/records.config.default" ;;
+    "proxy/config/storage.config.default") CONFIG_FILES="$CONFIG_FILES proxy/config/storage.config.default" ;;
+    "proxy/congest/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/congest/Makefile" ;;
+    "proxy/hdrs/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/hdrs/Makefile" ;;
+    "proxy/http/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/http/Makefile" ;;
+    "proxy/http/remap/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/http/remap/Makefile" ;;
+    "proxy/logging/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/logging/Makefile" ;;
+    "proxy/shared/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/shared/Makefile" ;;
+    "proxy/spdy/Makefile") CONFIG_FILES="$CONFIG_FILES proxy/spdy/Makefile" ;;
+    "rc/Makefile") CONFIG_FILES="$CONFIG_FILES rc/Makefile" ;;
+    "rc/trafficserver") CONFIG_FILES="$CONFIG_FILES rc/trafficserver" ;;
+    "rc/trafficserver.conf") CONFIG_FILES="$CONFIG_FILES rc/trafficserver.conf" ;;
+    "rc/trafficserver.service") CONFIG_FILES="$CONFIG_FILES rc/trafficserver.service" ;;
+    "rc/trafficserver.xml") CONFIG_FILES="$CONFIG_FILES rc/trafficserver.xml" ;;
+    "tools/Makefile") CONFIG_FILES="$CONFIG_FILES tools/Makefile" ;;
+    "tools/tsxs") CONFIG_FILES="$CONFIG_FILES tools/tsxs" ;;
+    "plugins/experimental/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/Makefile" ;;
+    "plugins/experimental/authproxy/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/authproxy/Makefile" ;;
+    "plugins/experimental/background_fetch/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/background_fetch/Makefile" ;;
+    "plugins/experimental/balancer/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/balancer/Makefile" ;;
+    "plugins/experimental/buffer_upload/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/buffer_upload/Makefile" ;;
+    "plugins/experimental/channel_stats/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/channel_stats/Makefile" ;;
+    "plugins/experimental/collapsed_connection/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/collapsed_connection/Makefile" ;;
+    "plugins/experimental/custom_redirect/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/custom_redirect/Makefile" ;;
+    "plugins/experimental/escalate/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/escalate/Makefile" ;;
+    "plugins/experimental/esi/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/esi/Makefile" ;;
+    "plugins/experimental/geoip_acl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/geoip_acl/Makefile" ;;
+    "plugins/experimental/healthchecks/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/healthchecks/Makefile" ;;
+    "plugins/experimental/hipes/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/hipes/Makefile" ;;
+    "plugins/experimental/metalink/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/metalink/Makefile" ;;
+    "plugins/experimental/remap_stats/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/remap_stats/Makefile" ;;
+    "plugins/experimental/regex_revalidate/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/regex_revalidate/Makefile" ;;
+    "plugins/experimental/s3_auth/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/s3_auth/Makefile" ;;
+    "plugins/experimental/stale_while_revalidate/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/stale_while_revalidate/Makefile" ;;
+    "plugins/experimental/ts_lua/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/ts_lua/Makefile" ;;
+    "plugins/experimental/url_sig/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/url_sig/Makefile" ;;
+    "plugins/experimental/xdebug/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/experimental/xdebug/Makefile" ;;
+    "lib/atscppapi/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/Makefile" ;;
+    "lib/atscppapi/examples/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/Makefile" ;;
+    "lib/atscppapi/examples/async_http_fetch/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/async_http_fetch/Makefile" ;;
+    "lib/atscppapi/examples/async_timer/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/async_timer/Makefile" ;;
+    "lib/atscppapi/examples/clientredirect/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/clientredirect/Makefile" ;;
+    "lib/atscppapi/examples/clientrequest/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/clientrequest/Makefile" ;;
+    "lib/atscppapi/examples/customresponse/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/customresponse/Makefile" ;;
+    "lib/atscppapi/examples/boom/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/boom/Makefile" ;;
+    "lib/atscppapi/examples/globalhook/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/globalhook/Makefile" ;;
+    "lib/atscppapi/examples/gzip_transformation/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/gzip_transformation/Makefile" ;;
+    "lib/atscppapi/examples/helloworld/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/helloworld/Makefile" ;;
+    "lib/atscppapi/examples/intercept/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/intercept/Makefile" ;;
+    "lib/atscppapi/examples/internal_transaction_handling/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/internal_transaction_handling/Makefile" ;;
+    "lib/atscppapi/examples/logger_example/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/logger_example/Makefile" ;;
+    "lib/atscppapi/examples/multiple_transaction_hooks/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/multiple_transaction_hooks/Makefile" ;;
+    "lib/atscppapi/examples/null_transformation_plugin/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/null_transformation_plugin/Makefile" ;;
+    "lib/atscppapi/examples/post_buffer/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/post_buffer/Makefile" ;;
+    "lib/atscppapi/examples/remap_plugin/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/remap_plugin/Makefile" ;;
+    "lib/atscppapi/examples/serverresponse/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/serverresponse/Makefile" ;;
+    "lib/atscppapi/examples/stat_example/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/stat_example/Makefile" ;;
+    "lib/atscppapi/examples/timeout_example/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/timeout_example/Makefile" ;;
+    "lib/atscppapi/examples/transactionhook/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/examples/transactionhook/Makefile" ;;
+    "lib/atscppapi/src/Makefile") CONFIG_FILES="$CONFIG_FILES lib/atscppapi/src/Makefile" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any.  Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' <confdefs.h | sed '
+s/'"$ac_delim"'/"\\\
+"/g' >>$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  for (key in D) D_is_set[key] = 1
+  FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+  line = \$ 0
+  split(line, arg, " ")
+  if (arg[1] == "#") {
+    defundef = arg[2]
+    mac1 = arg[3]
+  } else {
+    defundef = substr(arg[1], 2)
+    mac1 = arg[2]
+  }
+  split(mac1, mac2, "(") #)
+  macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
+  if (D_is_set[macro]) {
+    # Preserve the white space surrounding the "#".
+    print prefix "define", macro P[macro] D[macro]
+    next
+  } else {
+    # Replace #undef with comments.  This is necessary, for example,
+    # in the case of _POSIX_SOURCE, which is predefined and required
+    # on some systems where configure will not decide to define it.
+    if (defundef == "undef") {
+      print "/*", prefix defundef, macro, "*/"
+      next
+    }
+  }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+  if test x"$ac_file" != x-; then
+    {
+      $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f "$ac_file"
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    fi
+  else
+    $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
+  fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Older Autoconf quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  case $CONFIG_FILES in
+  *\'*) eval set x "$CONFIG_FILES" ;;
+  *)   set x $CONFIG_FILES ;;
+  esac
+  shift
+  for mf
+  do
+    # Strip MF so we end up with the name of the file.
+    mf=`echo "$mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile or not.
+    # We used to match only the files named 'Makefile.in', but
+    # some people rename them; so instead we look at the file content.
+    # Grep'ing the first line is not enough: some people post-process
+    # each Makefile.in and add a new line on top of each file to say so.
+    # Grep'ing the whole file is not good either: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+      dirpart=`$as_dirname -- "$mf" ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$mf" : 'X\(//\)[^/]' \| \
+	 X"$mf" : 'X\(//\)$' \| \
+	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    else
+      continue
+    fi
+    # Extract the definition of DEPDIR, am__include, and am__quote
+    # from the Makefile without running 'make'.
+    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+    test -z "$DEPDIR" && continue
+    am__include=`sed -n 's/^am__include = //p' < "$mf"`
+    test -z "$am__include" && continue
+    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+    # Find all dependency output files, they are included files with
+    # $(DEPDIR) in their names.  We invoke sed twice because it is the
+    # simplest approach to changing $(DEPDIR) to its actual value in the
+    # expansion.
+    for file in `sed -n "
+      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
+      # Make sure the directory exists.
+      test -f "$dirpart/$file" && continue
+      fdir=`$as_dirname -- "$file" ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$file" : 'X\(//\)[^/]' \| \
+	 X"$file" : 'X\(//\)$' \| \
+	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      as_dir=$dirpart/$fdir; as_fn_mkdir_p
+      # echo "creating $dirpart/$file"
+      echo '# dummy' > "$dirpart/$file"
+    done
+  done
+}
+ ;;
+    "libtool":C)
+
+    # See if we are running on zsh, and set the options which allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}" ; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile="${ofile}T"
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+
+# `$ECHO "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $as_me ($PACKAGE$TIMESTAMP) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+#
+#   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
+#                 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+#                 Foundation, Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+#   This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html, or
+# obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+
+# The names of the tagged configurations supported by this script.
+available_tags="CXX "
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The PATH separator for the build system.
+PATH_SEPARATOR=$lt_PATH_SEPARATOR
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# convert \$build file names to \$host format.
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+
+# convert \$build files to toolchain format.
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+
+# An object symbol dumper.
+OBJDUMP=$lt_OBJDUMP
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=$lt_file_magic_glob
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob=$lt_want_nocaseglob
+
+# DLL creation program.
+DLLTOOL=$lt_DLLTOOL
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd
+
+# The archiver.
+AR=$lt_AR
+
+# Flags to create an archive.
+AR_FLAGS=$lt_AR_FLAGS
+
+# How to feed a file listing to the archiver.
+archiver_list_spec=$lt_archiver_list_spec
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# Specify filename containing input files for \$NM.
+nm_file_list_spec=$lt_nm_file_list_spec
+
+# The root where to search for dependent libraries,and in which our libraries should be installed.
+lt_sysroot=$lt_sysroot
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Manifest tool.
+MANIFEST_TOOL=$lt_MANIFEST_TOOL
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_sys_lib_dlsearch_path_spec
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects
+postdep_objects=$lt_postdep_objects
+predeps=$lt_predeps
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "X${COLLECT_NAMES+set}" != Xset; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+
+ltmain="$ac_aux_dir/ltmain.sh"
+
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+  if test x"$xsi_shell" = xyes; then
+  sed -e '/^func_dirname ()$/,/^} # func_dirname /c\
+func_dirname ()\
+{\
+\    case ${1} in\
+\      */*) func_dirname_result="${1%/*}${2}" ;;\
+\      *  ) func_dirname_result="${3}" ;;\
+\    esac\
+} # Extended-shell func_dirname implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_basename ()$/,/^} # func_basename /c\
+func_basename ()\
+{\
+\    func_basename_result="${1##*/}"\
+} # Extended-shell func_basename implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_dirname_and_basename ()$/,/^} # func_dirname_and_basename /c\
+func_dirname_and_basename ()\
+{\
+\    case ${1} in\
+\      */*) func_dirname_result="${1%/*}${2}" ;;\
+\      *  ) func_dirname_result="${3}" ;;\
+\    esac\
+\    func_basename_result="${1##*/}"\
+} # Extended-shell func_dirname_and_basename implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_stripname ()$/,/^} # func_stripname /c\
+func_stripname ()\
+{\
+\    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are\
+\    # positional parameters, so assign one to ordinary parameter first.\
+\    func_stripname_result=${3}\
+\    func_stripname_result=${func_stripname_result#"${1}"}\
+\    func_stripname_result=${func_stripname_result%"${2}"}\
+} # Extended-shell func_stripname implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_split_long_opt ()$/,/^} # func_split_long_opt /c\
+func_split_long_opt ()\
+{\
+\    func_split_long_opt_name=${1%%=*}\
+\    func_split_long_opt_arg=${1#*=}\
+} # Extended-shell func_split_long_opt implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_split_short_opt ()$/,/^} # func_split_short_opt /c\
+func_split_short_opt ()\
+{\
+\    func_split_short_opt_arg=${1#??}\
+\    func_split_short_opt_name=${1%"$func_split_short_opt_arg"}\
+} # Extended-shell func_split_short_opt implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_lo2o ()$/,/^} # func_lo2o /c\
+func_lo2o ()\
+{\
+\    case ${1} in\
+\      *.lo) func_lo2o_result=${1%.lo}.${objext} ;;\
+\      *)    func_lo2o_result=${1} ;;\
+\    esac\
+} # Extended-shell func_lo2o implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_xform ()$/,/^} # func_xform /c\
+func_xform ()\
+{\
+    func_xform_result=${1%.*}.lo\
+} # Extended-shell func_xform implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_arith ()$/,/^} # func_arith /c\
+func_arith ()\
+{\
+    func_arith_result=$(( $* ))\
+} # Extended-shell func_arith implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_len ()$/,/^} # func_len /c\
+func_len ()\
+{\
+    func_len_result=${#1}\
+} # Extended-shell func_len implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+fi
+
+if test x"$lt_shell_append" = xyes; then
+  sed -e '/^func_append ()$/,/^} # func_append /c\
+func_append ()\
+{\
+    eval "${1}+=\\${2}"\
+} # Extended-shell func_append implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  sed -e '/^func_append_quoted ()$/,/^} # func_append_quoted /c\
+func_append_quoted ()\
+{\
+\    func_quote_for_eval "${2}"\
+\    eval "${1}+=\\\\ \\$func_quote_for_eval_result"\
+} # Extended-shell func_append_quoted implementation' "$cfgfile" > $cfgfile.tmp \
+  && mv -f "$cfgfile.tmp" "$cfgfile" \
+    || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+test 0 -eq $? || _lt_function_replace_fail=:
+
+
+  # Save a `func_append' function call where possible by direct use of '+='
+  sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1+="%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+else
+  # Save a `func_append' function call even when '+=' is not available
+  sed -e 's%func_append \([a-zA-Z_]\{1,\}\) "%\1="$\1%g' $cfgfile > $cfgfile.tmp \
+    && mv -f "$cfgfile.tmp" "$cfgfile" \
+      || (rm -f "$cfgfile" && cp "$cfgfile.tmp" "$cfgfile" && rm -f "$cfgfile.tmp")
+  test 0 -eq $? || _lt_function_replace_fail=:
+fi
+
+if test x"$_lt_function_replace_fail" = x":"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unable to substitute extended shell functions in $ofile" >&5
+$as_echo "$as_me: WARNING: Unable to substitute extended shell functions in $ofile" >&2;}
+fi
+
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_CXX
+reload_cmds=$lt_reload_cmds_CXX
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_CXX
+
+# A language specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_CXX
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_CXX
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to "yes" if using DIR/libNAME\${shared_ext} during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \${shlibpath_var} if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_CXX
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_CXX
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_CXX
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds_CXX
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_CXX
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects_CXX
+postdep_objects=$lt_postdep_objects_CXX
+predeps=$lt_predeps_CXX
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# ### END LIBTOOL TAG CONFIG: CXX
+_LT_EOF
+
+ ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: Build option summary:
+    CC:                 $CC
+    CXX:                $CXX
+    CPP:                $CPP
+    CFLAGS:             $CFLAGS
+    SHARED_CFLAGS:      $SHARED_CFLAGS
+    CXXFLAGS:           $CXXFLAGS
+    SHARED_CXXFLAGS:    $SHARED_CXXFLAGS
+    SHARED_CXXLINKFLAGS:$SHARED_LINKCXXFLAGS
+    CPPFLAGS:           $CPPFLAGS
+    LDFLAGS:            $LDFLAGS
+    SHARED_LDFLAGS:     $SHARED_LDFLAGS
+    EXTRA_CC_LDFLAGS:   $EXTRA_CC_LDFLAGS
+    EXTRA_CXX_LDFLAGS:  $EXTRA_CXX_LDFLAGS
+    LIBTOOL_LINK_FLAGS: $LIBTOOL_LINK_FLAGS
+    MGMT_DEFS:          $MGMT_DEFS
+    API_DEFS:           $API_DEFS
+" >&5
+$as_echo "$as_me: Build option summary:
+    CC:                 $CC
+    CXX:                $CXX
+    CPP:                $CPP
+    CFLAGS:             $CFLAGS
+    SHARED_CFLAGS:      $SHARED_CFLAGS
+    CXXFLAGS:           $CXXFLAGS
+    SHARED_CXXFLAGS:    $SHARED_CXXFLAGS
+    SHARED_CXXLINKFLAGS:$SHARED_LINKCXXFLAGS
+    CPPFLAGS:           $CPPFLAGS
+    LDFLAGS:            $LDFLAGS
+    SHARED_LDFLAGS:     $SHARED_LDFLAGS
+    EXTRA_CC_LDFLAGS:   $EXTRA_CC_LDFLAGS
+    EXTRA_CXX_LDFLAGS:  $EXTRA_CXX_LDFLAGS
+    LIBTOOL_LINK_FLAGS: $LIBTOOL_LINK_FLAGS
+    MGMT_DEFS:          $MGMT_DEFS
+    API_DEFS:           $API_DEFS
+" >&6;}
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 00000000..aff6549a
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,2000 @@
+# Process this file with `autoreconf -i` to create a 'configure' file.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Table of Contents
+# 1. INITIALIZATION
+# 2. SITE CONFIGURATION
+# 3. CHECK FOR PROGRAMS
+# 4. CHECK FOR LIBRARIES
+# 5. CHECK FOR HEADERS
+# 6. OUTPUT FILES
+# 7. autoheader TEMPLATES
+
+# -----------------------------------------------------------------------------
+# 1. INITIALIZATION
+
+# These first two version numbers are updated automatically on each release.
+# Version number is calculated as MAJOR * 1000000 + MINOR * 1000 + MICRO
+# Version string is in the form of MAJOR.MINOR.MICRO[sufix]
+#
+m4_define([TS_VERSION_S],[5.0.1])
+m4_define([TS_VERSION_N],[5000001])
+
+AC_INIT([Apache Traffic Server], TS_VERSION_S(), [dev@trafficserver.apache.org], [trafficserver],[http://trafficserver.apache.org])
+AC_PREREQ([2.59])
+AC_CONFIG_AUX_DIR([build/aux])
+AC_CONFIG_SRCDIR([proxy/Main.cc])
+AC_CONFIG_MACRO_DIR([build])
+AM_INIT_AUTOMAKE([-Wall -Werror tar-ustar foreign no-installinfo no-installman subdir-objects 1.9.2])
+AC_CONFIG_HEADERS([lib/ts/ink_autoconf.h])
+
+# Configure with --disable-silent-rules to get verbose output. For more info, see
+# http://www.gnu.org/software/automake/manual/html_node/Automake-silent_002drules-Option.html
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+AC_DISABLE_STATIC
+
+# Libtool versioning uses different conventions on different
+# platforms.  At least on FreeBSD, libtool uses an overly complex
+# convention that attempts to solve problems that most people just
+# don't have and which just causes confusion for most end users.
+#
+TS_VERSION_MAJOR=$((TS_VERSION_N() / 1000000 ))
+TS_VERSION_MINOR=$(((TS_VERSION_N() / 1000) % 1000 ))
+TS_VERSION_MICRO=$((TS_VERSION_N() % 1000 ))
+TS_LIBTOOL_MAJOR=`echo $((${TS_VERSION_MAJOR} + ${TS_VERSION_MINOR}))`
+TS_LIBTOOL_VERSION=$TS_LIBTOOL_MAJOR:$TS_VERSION_MICRO:$TS_VERSION_MINOR
+TS_VERSION_STRING=TS_VERSION_S()
+TS_VERSION_NUMBER=TS_VERSION_N()
+
+#
+# Substitute the above version numbers into the various files below.
+#
+AC_SUBST(TS_LIBTOOL_VERSION)
+AC_SUBST(TS_VERSION_STRING)
+AC_SUBST(TS_VERSION_NUMBER)
+AC_SUBST(TS_VERSION_MAJOR)
+AC_SUBST(TS_VERSION_MINOR)
+AC_SUBST(TS_VERSION_MICRO)
+
+dnl Hard-coded top of ink_autoconf.h:
+AH_TOP([
+#ifndef _ink_autoconf_h
+#define _ink_autoconf_h
+])
+
+dnl Hard-coded inclusion at the tail end of ink_autoconf.h:
+AH_BOTTOM([
+
+#endif /* _ink_autoconf_h */
+])
+
+#
+# Generate ./config.nice for reproducing runs of configure
+#
+TS_CONFIG_NICE([config.nice])
+
+# XXX we can't just use AC_PREFIX_DEFAULT because that isn't subbed in
+# by configure until it is too late.  Is that how it should be or not?
+# Something seems broken here.
+AC_PREFIX_DEFAULT([/usr/local/trafficserver])
+
+# Get the layout here, so we can pass the required variables to Trafficserver
+TS_ENABLE_LAYOUT(TrafficServer, [cachedir docdir])
+
+# Reparse the configure arguments so we can override the layout.
+TS_PARSE_ARGUMENTS
+
+#
+# Host detection
+#
+AC_CANONICAL_HOST
+HOST_GUESS="$host"
+AC_SUBST(HOST_GUESS)
+
+#
+# Build environment
+#
+build_person="`id -nu`"
+build_group="`id -ng`"
+build_machine="`uname -n`"
+AC_SUBST([build_machine])
+AC_SUBST([build_person])
+AC_SUBST([build_group])
+
+AC_ARG_WITH([user],
+  [AS_HELP_STRING([--with-user],[specify the system user [default=nobody]])],
+  [
+  with_user="$withval"
+  ],[
+  with_user="nobody"
+  ]
+)
+
+default_group="`id -ng $with_user`"
+AC_ARG_WITH([group],
+  [AS_HELP_STRING([--with-group],[specify the system group [default=nobody]])],
+  [
+  with_group="$withval"
+  ],[
+  with_group=${default_group:-nobody}
+  ]
+)
+AC_SUBST([pkgsysuser],[$with_user])
+AC_SUBST([pkgsysgroup],[$with_group])
+
+# -----------------------------------------------------------------------------
+# 2. SITE CONFIGURATION
+
+#
+# Debug
+#
+
+AC_MSG_CHECKING([whether to enable debugging])
+AC_ARG_ENABLE([debug],
+  [AS_HELP_STRING([--enable-debug],[turn on debugging])],
+  [],
+  [enable_debug=no]
+)
+AC_MSG_RESULT([$enable_debug])
+
+#
+# Enable -Werror. We want this enabled by default for developers, but disabled by default
+# for end users (because we don't want released versions to suffer from compiler warning hell).
+#
+AC_MSG_CHECKING([whether to enable -Werror])
+AC_ARG_ENABLE([werror],
+  [AS_HELP_STRING([--enable-werror],[turn compiler warnings into errors @<:@default=auto@:>@])],
+  [],
+  [
+    case $TS_VERSION_STRING in
+      *dev) enable_werror=yes ;;
+      *) enable_werror=no ;;
+    esac
+  ]
+)
+AC_MSG_RESULT([$enable_werror])
+
+
+#
+# Fast SDK APIs, this disables the parameter checks (assert)
+# on all APIs.
+#
+
+AC_MSG_CHECKING([whether to enable fast SDK APIs])
+AC_ARG_ENABLE([fast-sdk],
+  [AS_HELP_STRING([--enable-fast-sdk],[enable fast SDK APIs (no input parameter sanity checks)])],
+  [],
+  [enable_fast_sdk=no]
+)
+AC_MSG_RESULT([$enable_fast_sdk])
+TS_ARG_ENABLE_VAR([use], [fast-sdk])
+AC_SUBST(use_fast_sdk)
+
+#
+# Diags
+#
+
+AC_MSG_CHECKING([whether to enable diags])
+AC_ARG_ENABLE([diags],
+  [AS_HELP_STRING([--disable-diags],[turn off diags])],
+  [],
+  [enable_diags=yes]
+)
+AC_MSG_RESULT([$enable_diags])
+TS_ARG_ENABLE_VAR([use], [diags])
+AC_SUBST(use_diags)
+
+#
+# Build regression tests?
+#
+
+AC_MSG_CHECKING([whether to enable regression tests])
+AC_ARG_ENABLE([tests],
+  [AS_HELP_STRING([--disable-tests],[turn off regression tests])],
+  [],
+  [enable_tests=yes]
+)
+AC_MSG_RESULT([$enable_tests])
+TS_ARG_ENABLE_VAR([has], [tests])
+AC_SUBST(has_tests)
+AM_CONDITIONAL([BUILD_TESTS], [test 0 -ne $has_tests])
+
+AC_SUBST([ink_with_modules_local],["-DLOCAL_MANAGER"])
+AC_SUBST([ink_with_modules_process],["-DPROCESS_MANAGER"])
+
+#
+# Force some static linkage (for testing / development only)
+#
+AC_MSG_CHECKING([whether to build some static libts (dev only)])
+AC_ARG_ENABLE([static-libts],
+  [AS_HELP_STRING([--enable-static-libts],[build some static libts (dev only)])],
+  [],
+  [enable_static_libts=no]
+)
+AC_MSG_RESULT([$enable_static_libts])
+TS_ARG_ENABLE_VAR([has],[static-libts])
+AM_CONDITIONAL([STATIC_LIBTS], [test 0 -ne $has_static_libts])
+
+#
+# Remote Coverity Prevent commit
+#
+AC_MSG_CHECKING([whether to commit cov defects to remote host])
+AC_ARG_ENABLE([remote-cov-commit],
+  [AS_HELP_STRING([--enable-remote-cov-commit[=HOST]], [commit cov defects to remote host [HOST=localhost]])],
+  [],
+  [enable_remote_cov_commit=localhost]
+)
+AC_MSG_RESULT([$enable_remote_cov_commit])
+AC_SUBST([enable_remote_cov_commit])
+
+#
+# WCCP
+#
+AC_MSG_CHECKING([whether to enable WCCP v2 support])
+AC_ARG_ENABLE([wccp],
+  [AS_HELP_STRING([--enable-wccp],[enable WCCP v2])],
+  [],
+  [enable_wccp=no]
+)
+AC_MSG_RESULT([$enable_wccp])
+TS_ARG_ENABLE_VAR([has],[wccp])
+AC_SUBST(has_wccp)
+AM_CONDITIONAL([BUILD_WCCP], [test 0 -ne $has_wccp])
+
+#
+# InterimCache
+#
+AC_MSG_CHECKING([whether to enable interim cache support])
+AC_ARG_ENABLE([interim_cache],
+  [AS_HELP_STRING([--enable-interim-cache],[enable interim cache])],
+  [],
+  [enable_interim_cache=no]
+)
+AC_MSG_RESULT([$enable_interim_cache])
+TS_ARG_ENABLE_VAR([has],[interim_cache])
+AC_SUBST(has_interim_cache)
+AM_CONDITIONAL([BUILD_INTERIM_CACHE], [test 0 -ne $has_interim_cache])
+
+# Google profiler
+AC_MSG_CHECKING([whether to enable profiler])
+AC_ARG_WITH([profiler],
+  [AS_HELP_STRING([--with-profiler],[enable support for profiler [default=no]])],
+  [with_profiler=$withval],
+  [with_profiler=no]
+)
+AC_MSG_RESULT([$with_profiler])
+
+#
+# use eventfd() or pipes
+# Found that ec2 is using an older kernel causing eventfd errors.
+# Disable eventfd when using ATS on EC2 Fedora.
+#
+AC_MSG_CHECKING([whether to enable eventfd()])
+AC_ARG_ENABLE([eventfd],
+  [AS_HELP_STRING([--disable-eventfd],[turn off eventfd and use pipes])],
+  [],
+  [enable_eventfd="yes"]
+)
+AC_MSG_RESULT([$enable_eventfd])
+
+#
+# use POSIX capabilities instead of user ID switching.
+#
+AC_MSG_CHECKING([whether to use POSIX capabilities])
+AC_ARG_ENABLE([posix-cap],
+  [AS_HELP_STRING([--disable-posix-cap],[Use user id switching instead of POSIX capabilities])],
+  [],
+  [enable_posix_cap="auto"]
+)
+AC_MSG_RESULT([$enable_posix_cap])
+
+#
+# use hwloc library when possible (can be disabled)
+#
+AC_MSG_CHECKING([whether to use hwloc library])
+AC_ARG_ENABLE([hwloc],
+  [AS_HELP_STRING([--disable-hwloc],[Don't use the hwloc library])],
+  [],
+  [enable_hwloc="yes"]
+)
+AC_MSG_RESULT([$enable_hwloc])
+
+#
+# Enble ccache explicitly (it's disabled by default, because of build problems in some cases)
+#
+AC_MSG_CHECKING([whether to enable ccache])
+AC_ARG_ENABLE([ccache],
+  [AS_HELP_STRING([--enable-ccache],[Enable ccache (for developers)])],
+  [],
+  [enable_ccache="no"]
+)
+AC_MSG_RESULT([$enable_ccache])
+
+#
+# Use TPROXY for connection transparency.
+#
+AC_MSG_CHECKING([whether to enable TPROXY based transparency])
+AC_ARG_ENABLE([tproxy],
+  [AS_HELP_STRING([--enable-tproxy[[=ARG]]],
+                  [Use TPROXY to enable connection transparency.
+                   'auto' or omitted for local system default,
+                   'no' to disable,
+                   'force' to use built in default,
+                   number to use as IP_TRANSPARENT sockopt.
+                   [default=auto]
+                  ])
+  ],
+  [],
+  [enable_tproxy="auto"]
+)
+AC_MSG_RESULT([$enable_tproxy])
+
+#
+# Disable our freelist implementation, reverting it to whatever
+# allocator (malloc, tcmalloc or jemalloc) that is in use. This is
+# useful for debugging.
+#
+AC_MSG_CHECKING([whether to disable freelist])
+AC_ARG_ENABLE([freelist],
+  [AS_HELP_STRING([--disable-freelist],[turn off freelist and use allocators])],
+  [],
+  [enable_freelist="yes"]
+)
+AC_MSG_RESULT([$enable_freelist])
+TS_ARG_ENABLE_VAR([use], [freelist])
+AC_SUBST(use_freelist)
+
+#
+# The original InkFreeList memory pool could not reclaim itself
+# automatically. We can use '--enable-reclaimable-freelist' option
+# to enable the reclaiming feature. This option is effective only
+# when freelist is enable.
+#
+if test "x${enable_freelist}" = "xyes"; then
+  AC_MSG_CHECKING([whether to enable reclaimable freelist])
+  AC_ARG_ENABLE([reclaimable-freelist],
+                [AS_HELP_STRING([--enable-reclaimable-freelist],
+                                [enable reclaimable freelist support (effective only when freelist is enabled)])],
+                [],
+                [enable_reclaimable_freelist="no"])
+  AC_MSG_RESULT([$enable_reclaimable_freelist])
+else
+  enable_reclaimable_freelist="no"
+fi
+TS_ARG_ENABLE_VAR([use], [reclaimable_freelist])
+AC_SUBST(use_reclaimable_freelist)
+
+#
+# Options for SPDY
+#
+AC_MSG_CHECKING([whether to enable spdy])
+AC_ARG_ENABLE([spdy],
+        [AS_HELP_STRING([--enable-spdy], [turn on spdy protocol])],
+        [],
+        [enable_spdy="no"])
+AC_MSG_RESULT([$enable_spdy])
+TS_ARG_ENABLE_VAR([has], [spdy])
+AC_SUBST(has_spdy)
+AM_CONDITIONAL([BUILD_SPDY], [test 0 -ne $has_spdy])
+
+#
+# Configure how many stats to allocate for plugins. Default is 512.
+#
+AC_ARG_WITH([max-api-stats],
+  [AS_HELP_STRING([--with-max-api-stats],[max number of plugin stats [default=512]])],
+  [max_api_stats=$withval],
+  [max_api_stats=512]
+)
+AC_SUBST(max_api_stats)
+
+#
+# Max host name length that we deal with in URLs.
+#
+AC_ARG_WITH([max-host-name-len],
+  [AS_HELP_STRING([--with-max-host-name-len],[max host name length [default=256]])],
+  [max_host_name_len=$withval],
+  [max_host_name_len=256]
+)
+AC_SUBST(max_host_name_len)
+
+#
+# EventProcessor thread configurations
+#
+
+AC_ARG_WITH([max-event-threads],
+  [AS_HELP_STRING([--with-max-event-threads],[max number of event threads [default=4096]])],
+  [max_event_threads=$withval],
+  [max_event_threads=4096]
+)
+AC_SUBST(max_event_threads)
+
+AC_ARG_WITH([max-threads-per-type],
+  [AS_HELP_STRING([--with-max-threads-per-type],[max number of threads per event type [default=3072]])],
+  [max_threads_per_type=$withval],
+  [max_threads_per_type=3072]
+)
+AC_SUBST(max_threads_per_type)
+
+#
+# Experimental plugins
+#
+
+AC_MSG_CHECKING([whether to enable experimental plugins])
+AC_ARG_ENABLE([experimental-plugins],
+  [AS_HELP_STRING([--enable-experimental-plugins],[build experimental plugins])],
+  [],
+  [enable_experimental_plugins=no]
+)
+AC_MSG_RESULT([$enable_experimental_plugins])
+AM_CONDITIONAL([BUILD_EXPERIMENTAL_PLUGINS], [ test "x${enable_experimental_plugins}" = "xyes" ])
+
+#
+# Example plugins. The example plugins are always built, but not always installed. Installing
+# them is useful for QA, but not useful for most users, so we default this to disabled.
+#
+
+AC_MSG_CHECKING([whether to install example plugins])
+AC_ARG_ENABLE([example-plugins],
+  [AS_HELP_STRING([--enable-example-plugins],[install example plugins])],
+  [],
+  [enable_example_plugins=no]
+)
+AC_MSG_RESULT([$enable_example_plugins])
+AM_CONDITIONAL([BUILD_EXAMPLE_PLUGINS], [ test "x${enable_example_plugins}" = "xyes" ])
+
+
+#
+# Test tools. The test tools are always built, but not always installed. Installing
+# them is useful for QA, but not useful for most users, so we default this to disabled.
+#
+
+AC_MSG_CHECKING([whether to install testing tools])
+AC_ARG_ENABLE([test-tools],
+  [AS_HELP_STRING([--enable-test-tools],[install testing tools])],
+  [],
+  [enable_test_tools=no]
+)
+AC_MSG_RESULT([$enable_test_tools])
+AM_CONDITIONAL([BUILD_TEST_TOOLS], [ test "x${enable_test_tools}" = "xyes" ])
+
+#
+# build c++ api
+#
+AC_MSG_CHECKING([whether to build c++ api])
+AC_ARG_ENABLE([cppapi],
+  [AS_HELP_STRING([--enable-cppapi],[Build the c++ api])],
+  [],
+  [enable_cppapi="no"]
+)
+AC_MSG_RESULT([$enable_cppapi])
+AM_CONDITIONAL([ENABLE_CPPAPI], [ test "x${enable_cppapi}" = "xyes" ])
+
+#
+# Disable LuaJIT? This is a interrim option, when Lua becomes part of the core
+# requirements, we will remove this option.
+#
+AC_MSG_CHECKING([whether to disable LuaJIT])
+AC_ARG_ENABLE([luajit],
+  [AS_HELP_STRING([--disable-luajit],[turn off LuaJIT])],
+  [],
+  [enable_luajit="yes"]
+)
+AC_MSG_RESULT([$enable_luajit])
+AM_CONDITIONAL([BUILD_LUAJIT], [ test "x${enable_luajit}" = "xyes" ])
+
+#
+# Installation directories
+# For each var the following is evaluated
+# foo      Standard variable  eg. ${prefix}/foo
+# rel_foo  Relative to prefix eg. foo
+#
+TS_SUBST_LAYOUT_PATH([prefix])
+TS_SUBST_LAYOUT_PATH([exec_prefix])
+TS_SUBST_LAYOUT_PATH([bindir])
+TS_SUBST_LAYOUT_PATH([sbindir])
+TS_SUBST_LAYOUT_PATH([libdir])
+TS_SUBST_LAYOUT_PATH([libexecdir])
+TS_SUBST_LAYOUT_PATH([infodir])
+TS_SUBST_LAYOUT_PATH([mandir])
+TS_SUBST_LAYOUT_PATH([sysconfdir])
+TS_SUBST_LAYOUT_PATH([datadir])
+TS_SUBST_LAYOUT_PATH([installbuilddir])
+TS_SUBST_LAYOUT_PATH([includedir])
+TS_SUBST_LAYOUT_PATH([localstatedir])
+TS_SUBST_LAYOUT_PATH([runtimedir])
+TS_SUBST_LAYOUT_PATH([logdir])
+TS_SUBST_LAYOUT_PATH([cachedir])
+TS_SUBST_LAYOUT_PATH([docdir])
+
+TS_SUBST([pkgbindir])
+TS_SUBST([pkgsbindir])
+TS_SUBST([pkglibdir])
+TS_SUBST([pkglibexecdir])
+TS_SUBST([pkgsysconfdir])
+TS_SUBST([pkgdatadir])
+TS_SUBST([pkglocalstatedir])
+TS_SUBST([pkgruntimedir])
+TS_SUBST([pkglogdir])
+TS_SUBST([pkgcachedir])
+TS_SUBST([pkgdocdir])
+
+
+# -----------------------------------------------------------------------------
+# 3. CHECK FOR PROGRAMS
+
+# Compiler selection:
+#
+# Implementation note (toc)
+# 1) Get default compiler settings (case statement.)
+# 2) Check for over-rides of default compiler.
+# 3) Set standard CFLAGS, SHARED_CFLAGS, etc.
+# 4) (in first kludge mode block...) obtain any further CFLAG-type additions.
+# 5) Test compilers with all flags set.
+
+# AC_PROG can sometimes mangle CFLAGS etc.
+# in particular, on Linux they insert -g -O2, here we preserve any user CFLAGS
+_ts_saved_CFLAGS="${CFLAGS}"
+_ts_saved_CXXFLAGS="${CXXFLAGS}"
+
+# We force the compiler search list because the default GCC on Darwin cannot build
+# Traffic Server. On most (all?) platforms, cc and c++ should be the preferred default
+# compiler.
+AC_PROG_CC([cc gcc clang icc])
+AC_PROG_CXX([c++ g++ clang++ icpc])
+
+AM_PROG_CC_C_O
+AC_PROG_CPP
+AC_PROG_CXXCPP
+AM_PROG_AS
+
+AX_COMPILER_VENDOR
+
+CFLAGS="${_ts_saved_CFLAGS}"
+CXXFLAGS="${_ts_saved_CXXFLAGS}"
+
+# AX_CXX_COMPILE_STDCXX_11 requires the current language to be C++.
+AC_LANG_PUSH([C++])
+
+AX_CXX_COMPILE_STDCXX_11( [noext], [enable_cxx_11_support=yes], [
+  enable_cxx_11_support=no
+  AC_MSG_NOTICE([disabling features that depend on C++11 support])
+])
+
+AM_CONDITIONAL([BUILD_HAVE_CXX_11], [ test "x${enable_cxx_11_support}" = "xyes" ])
+if test "x${enable_cxx_11_support}" = "xyes" ; then
+  AC_DEFINE(HAVE_CXX_11, 1, [Whether the compiler support C++11])
+fi
+
+# While we are in C++ mode, check for the GNU hash_map extension.
+TS_FLAG_HEADERS([unordered_map unordered_set])
+AC_MSG_CHECKING([for <ext/hash_map>])
+AC_COMPILE_IFELSE([
+  AC_LANG_PROGRAM([
+    #include <string>
+    #include <ext/hash_map>
+    ], [
+     __gnu_cxx::hash_map<std::string, std::string> map;
+  ])],
+  [ have_gnu_cxx_hash_map=yes ],
+  [ have_gnu_cxx_hash_map=no ]
+)
+
+AC_MSG_RESULT([$have_gnu_cxx_hash_map])
+if test "x${have_gnu_cxx_hash_map}" = "xyes" ; then
+  AC_DEFINE(HAVE_GNU_CXX_HASH_MAP, 1, [whether __gnu_cxx::hash_map is available])
+fi
+
+# And check for std::shared_ptr vs std::tr1::shared_ptr
+TS_FLAG_HEADERS([unordered_map unordered_set])
+AC_MSG_CHECKING([for std::shared_ptr])
+AC_COMPILE_IFELSE([
+  AC_LANG_PROGRAM([
+    #include <memory>
+    using std::shared_ptr;
+    ], [
+  ])],
+  [ have_std_shared_ptr=yes ],
+  [ have_std_shared_ptr=no ]
+)
+
+AC_MSG_RESULT([$have_std_shared_ptr])
+if test "x${have_std_shared_ptr}" = "xyes" ; then
+  AC_DEFINE(HAVE_STD_SHARED_PTR, 1, [whether std::shared_ptr is available])
+fi
+
+AC_LANG_POP()
+
+dnl AC_PROG_SED is only available from version 2.6 (released in 2003). CentosOS
+dnl 5.9 still has an ancient version, but we have macros that require
+dnl AC_PROG_SED. The actual AC_PROG_SED macro does functional checks, but here
+dnl we define a trivial local version for times when we are running on
+dnl obsoldete autoconf.
+ifdef([AC_PROG_SED], [], [
+  AC_DEFUN([AC_PROG_SED], [
+    AC_CHECK_PROG(SED, sed, sed)
+  ])
+])
+
+
+# Various OS specific setup. Note that on Solaris, 32-bit is always the
+# default, even on a box that with 64-bit architecture.
+# This also sets up a "normalized" variable and define $host_os_def.
+defer_accept=1
+case $host_os in
+  linux*)
+    host_os_def="linux"
+    defer_accept=45
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+    ;;
+  darwin*)
+    host_os_def="darwin"
+    ;;
+  freebsd*)
+    host_os_def="freebsd"
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+    TS_ADDTO(CPPFLAGS, [-I/usr/local/include])
+    ;;
+  kfreebsd*)
+    host_os_def="freebsd"
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+    TS_ADDTO(CPPFLAGS, [-I/usr/local/include])
+    TS_ADDTO(CPPFLAGS, [-Dkfreebsd])
+    ;;
+  openbsd*)
+    host_os_def="openbsd"
+    ;;
+  solaris*)
+    host_os_def="solaris"
+    case "`isalist`" in
+      *amd64*)
+        TS_ADDTO(CFLAGS, -m64)
+        TS_ADDTO(CXXFLAGS, -m64)
+        TS_ADDTO(LUA_LDFLAGS, -m64)
+        ;;
+    esac
+    ;;
+  *)
+    EXTRA_CXX_LDFLAGS="-rdynamic"
+    host_os_def=unknown
+    ;;
+esac
+
+TS_ADDTO(CPPFLAGS, [-D$host_os_def])
+AC_SUBST(defer_accept)
+
+
+dnl AM_PROG_AR is not always available, but it doesn't seem to be needed in older versions.
+ifdef([AM_PROG_AR],
+      [AM_PROG_AR])
+
+AC_PROG_AWK
+AC_PROG_SED
+AC_PROG_LN_S
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+AC_CHECK_PROG(RM, rm, rm)
+AC_CHECK_PROG(ASCPP, cpp, cpp)
+AC_CHECK_TOOL(AR, ar, ar)
+AC_ISC_POSIX
+
+AM_PATH_PYTHON([2.4], [
+  dnl action-if-found
+  TS_MAN1_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=1 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+  TS_MAN3_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=3 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+  TS_MAN5_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=5 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+  TS_MAN8_MANPAGES=`cd $srcdir/doc && $PYTHON manpages.py --section=8 | $AWK '{print "$(BUILDDIR)/man/" $0 }' | tr '\n' ' '`
+
+  # If we have python, check if the Sphinx version looks OK.
+  AS_IF(["$PYTHON" "$srcdir/doc/checkvers.py" --check-version], [
+    sphinx_version_check=yes
+  ])
+
+], [
+  dnl action-if-not-found
+  :
+])
+
+AC_ARG_VAR(SPHINXBUILD, [the sphinx-build documentation generator])
+AC_ARG_VAR(SPHINXOPTS, [additional sphinx-build options])
+AC_CHECK_PROG([SPHINXBUILD], [sphinx-build], [sphinx-build], [false])
+
+AC_SUBST(TS_MAN1_MANPAGES)
+AC_SUBST(TS_MAN3_MANPAGES)
+AC_SUBST(TS_MAN5_MANPAGES)
+AC_SUBST(TS_MAN8_MANPAGES)
+
+AC_MSG_CHECKING([whether to build man pages])
+AS_IF([test "x$sphinx_version_check" = "xyes" -a "x$SPHINXBUILD" != "xfalse"], [
+  AM_CONDITIONAL([BUILD_MANPAGES], [true])
+  AC_MSG_RESULT([yes])
+], [
+  AM_CONDITIONAL([BUILD_MANPAGES], [false])
+  AC_MSG_RESULT([no])
+])
+
+# Do bison check by hand because we must do a version check.
+# Use YACC because it makes autotools shut up.
+BISON_MAJOR=2
+BISON_MINOR=4
+BISON_POINT=1
+AC_CHECK_PROG([YACC],[bison],[bison])
+AS_IF([test -n "$YACC"],
+      [ bison_version_check=`$YACC --version 2>&1 | \
+        $SED -n '/bison/s/^[[^0-9]]*\([[0-9]][[0-9.]]*\).*$/\1/p' | \
+        $AWK "{ if (\\$1 > $BISON_MAJOR || (\\$1 == $BISON_MAJOR && (\\$2 > $BISON_MINOR || (\\$2 == $BISON_MINOR && (NR == 2 || \\$3 >= $BISON_POINT))))) print \"yes\"; else printf(\"version %d.%d.%d\",\\$1,\\$2,\\$3); }" FS=. \
+        `
+        AS_IF([test "x$bison_version_check" != "xyes"],
+          [ YACC=''
+            AS_IF([test -z "$bison_version_check"],
+              [bison_version_check='no version data']
+            )
+          ]
+        )
+      ],
+      [ YACC=''
+        bison_version_check="nothing"
+      ]
+)
+# Check lex/flex by hand because we need flex of a sufficient version.
+FLEX_MAJOR=2
+FLEX_MINOR=5
+FLEX_POINT=33
+dnl ylwrap requires the lexer executable to be an absolute path or in the srcdir.
+dnl but we need various other LEX values.
+AC_PROG_LEX
+AS_IF([test -n "$LEX"],
+      [ flex_version_check=`$LEX --version 2>&1 | \
+        $SED -n '/flex/s/^[[^0-9]]*\([[0-9]][[0-9.]]*\)[[^0-9]]*.*$/\1/p' | \
+        $AWK "{ if (\\$1 > $FLEX_MAJOR || (\\$1 == $FLEX_MAJOR && (\\$2 > $FLEX_MINOR || (\\$2 == $FLEX_MINOR && (NR == 2 || \\$3 >= $FLEX_POINT))))) print \"yes\"; else printf(\"version %d.%d.%d\",\\$1,\\$2,\\$3); }" FS=. \
+        `
+        AS_IF([test "x$flex_version_check" != "xyes"],
+          [ LEX=''
+            AS_IF([test -z "$flex_version_check"],
+              [flex_version_check='no version data']
+            )
+          ]
+        )
+      ],
+      [ LEX=''
+        flex_version_check="nothing"
+      ]
+)
+
+AS_IF([test "x$enable_wccp" = "xyes"],
+  [
+    AS_IF([test -z "$LEX"  ],
+       AC_MSG_ERROR([Need flex version $FLEX_MAJOR.$FLEX_MINOR.$FLEX_POINT or better to enable WCCP (found $flex_version_check)])
+    )
+
+    AS_IF([test -z "$YACC" ],
+        AC_MSG_ERROR([Need bison version $BISON_MAJOR.$BISON_MINOR.$BISON_POINT or better to enable WCCP (found $bison_version_check)])
+    )
+
+  ]
+)
+
+# Check for Perl and Doxygen
+AC_PATH_PROG([DOXYGEN], [doxygen]) # needed for Doxygen
+AC_PATH_PROG([PERL], [perl],[not found])
+AS_IF([test "x$PERL" = "xnot found"],
+  [AC_MSG_ERROR([check for perl failed. Have you installed perl?])]
+)
+AC_ARG_VAR([DOXYGEN], [full path of Doxygen executable])
+AC_ARG_VAR([PERL], [full path of Perl executable])
+
+# Check if MakeMaker is available
+AX_PROG_PERL_MODULES([ExtUtils::MakeMaker], AM_CONDITIONAL([BUILD_PERL_LIB], [true]),
+                                            AM_CONDITIONAL([BUILD_PERL_LIB], [false])
+)
+
+# Check for GNU-style -On optimization flags
+AC_MSG_CHECKING([checking whether to auto-set compiler optimization flags])
+has_optimizer_flags=`echo "$CFLAGS $CXXFLAGS" | ${AWK} '$0 !~ /-O.?/{print "no"}'`
+AS_IF([test "x${has_optimizer_flags}" = "xno"],
+        [
+                optimizing_flags='-O3'
+                AC_MSG_RESULT([yes ${optimizing_flags}])
+        ],
+        [
+                has_optimizer_flags='yes'
+                optimizing_flags=''
+                AC_MSG_RESULT([no])
+        ]
+)
+
+AM_CONDITIONAL([BUILD_HAVE_LIBCXX], [ false ])
+
+case $host_os_def in
+  linux)
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xintel"], [
+      # -Wall goes crazy, so turned these specific checks off for now:
+      #
+      #  111 is "statement is unreachable"
+      #  279 is "controlling expression is constant", triggered by our asserts
+      #  383 is "value copied to temporary, reference to temporary used"
+      #  444 is "destructor for base class is not virtual"
+      #  522 is "function "xyz" redeclared "inline" after being called
+      #  873 is "has no corresponding operator delete". ToDo: we should fix.
+      #  981 is "operands are evaluated in unspecified order"
+      # 1418 is "external function definition with no prior declaration"
+      # 1419 is "external declaration in primary source file"
+      # 1572 is "floating-point equality and inequality comparisons are unreliable"
+      # 1720 is "operator new" has no corresponding member operator delete"
+      # 2256 is "non-pointer conversion from "int" to "unsigned char" "
+      # 2259 is "non-pointer conversion from "int" to "unsigned char" "
+      #
+      # TODO: We should try to eliminate more of these -wd exclusions.
+      common_opt="-pipe -Wall -wd111 -wd279 -wd383 -wd522 -wd444 -wd873 -wd981 -wd1418 -wd1419 -wd1572 -wd1720 -wd2256 -wd2259"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimization_flags -axsse4.2 -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+    ])
+
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xclang"], [
+      debug_opt="-ggdb3 $common_opt -Qunused-arguments"
+      release_opt="-g $common_opt $optimizing_flags -fno-strict-aliasing -Qunused-arguments"
+      cxx_opt="-Wno-invalid-offsetof -Qunused-arguments"
+    ])
+
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xgnu"], [
+      # This is useful for finding odd conversions
+      #    common_opt="-pipe -Wall -Wconversion -Wno-sign-conversion"
+      ts_am_common_flags="-Wunused-parameter"
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+      # Special options for flex generated .c files
+      flex_cflags="-Wno-unused-parameter"
+    ])
+
+    ;; # linux)
+
+  darwin)
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xclang"], [
+      common_opt="-pipe -Wall -Wno-deprecated-declarations -Qunused-arguments"
+      debug_opt="-g $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+    ], [
+      AC_MSG_WARN([clang is the only supported compiler on Darwin])
+    ])
+
+    # Darwin needs to use libc++ for any C++11 code.
+    AM_CONDITIONAL([BUILD_HAVE_LIBCXX], [ true ])
+
+    # NOTE: This seems semi-kludgy, but useful for MacPorts I think.
+    AS_IF([test -d /opt/local/include], [
+      TS_ADDTO(CPPFLAGS, [-I/opt/local/include])
+    ])
+    AS_IF([test -d /opt/local/lib], [
+      TS_ADDTO(LDFLAGS, [-L/opt/local/lib])
+    ])
+
+    ;; # darwin)
+
+  freebsd|kfreebsd)
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xclang"], [
+      common_opt="-pipe -Wall -Qunused-arguments"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof -Qunused-arguments"
+    ])
+
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xgnu"], [
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+    ])
+
+    AS_IF([test -d /usr/local/lib], [
+      TS_ADDTO(LDFLAGS, [-L/usr/local/lib])
+    ])
+
+    ;; # freebsd|kfreebsd)
+
+  solaris)
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xgnu"], [
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+    ])
+
+    ;; # solaris)
+
+  *)
+    # Not sure what platform this is, but take a stab at some general GCC options ...
+    AS_IF([test "x$ax_cv_c_compiler_vendor" = "xgnu"], [
+      common_opt="-pipe -Wall"
+      debug_opt="-ggdb3 $common_opt"
+      release_opt="-g $common_opt $optimizing_flags -feliminate-unused-debug-symbols -fno-strict-aliasing"
+      cxx_opt="-Wno-invalid-offsetof"
+    ])
+esac
+
+# Only add -Werror if the user has requested it. We enable this by default for
+# development, disable it by default for release.
+AS_IF([test x"$enable_werror" = xyes], [
+  TS_ADDTO(release_opt, -Werror)
+  TS_ADDTO(debug_opt, -Werror)
+])
+
+cc_oflag_opt=$release_opt
+cc_oflag_dbg=$debug_opt
+cxx_oflag_opt="$release_opt $cxx_opt $cxx_rel"
+cxx_oflag_dbg="$debug_opt $cxx_opt $cxx_dbg"
+
+AM_CFLAGS="$ts_am_common_flags"
+AM_CXXFLAGS="$ts_am_common_flags"
+AC_SUBST(AM_CFLAGS)
+AC_SUBST(AM_CXXFLAGS)
+
+AC_SUBST([FLEX_CFLAGS], $flex_cflags)
+
+SHARED_CFLAGS=-fPIC
+SHARED_LDFLAGS=-shared
+SHARED_CXXFLAGS=-fPIC
+SHARED_CXXLINKFLAGS=-shared
+
+#
+# _Here_ is where we go ahead and add the _optimizations_ to already
+#  existing CFLAGS/CXXFLAGS if some special values had been set.
+#
+if test "x${enable_debug}" = "xyes"; then
+  TS_ADDTO(CFLAGS, [${cc_oflag_dbg}])
+  TS_ADDTO(CXXFLAGS, [${cxx_oflag_dbg}])
+  TS_ADDTO(CPPFLAGS, [-DDEBUG -D_DEBUG])
+else
+  TS_ADDTO(CFLAGS, [${cc_oflag_opt}])
+  TS_ADDTO(CXXFLAGS, [${cxx_oflag_opt}])
+fi
+
+# Checks for pointer size
+AC_CHECK_SIZEOF([void*])
+if test "x$ac_cv_sizeof_voidp" == "x"; then
+  AC_ERROR([Cannot determine size of void*])
+fi
+AC_SUBST(ac_cv_sizeof_voidp)
+
+
+#
+# Here are all the extra linux-specific C(XX)FLAGS additions and
+# so forth.
+# TODO cpu architecture settings separate from operating system settings
+#
+cpu_architecture=""
+# GCC: add a default march if there is not one set
+if test "x${GCC}" = "xyes"; then
+  if test "${ac_cv_sizeof_voidp}" = "4"; then
+    case "$host_cpu" in
+      i?86* | k[5-8]* | pentium* | athlon)
+        cpu_architecture="-march=i586"
+      ;;
+    esac
+  else
+    case "$host_cpu" in
+      x86_64 | amd64)
+        # XXX: Any need for 64-bit arch flags?
+        # cpu_architecture="-march=native"
+      ;;
+    esac
+  fi
+fi
+
+# Overrride detected architecture with the user suplied one
+#
+AC_ARG_WITH(architecture, [AC_HELP_STRING([--with-architecture=ARCH],[use a specific CPU architecture])],
+[
+  if test "x$withval" != "xyes" && test "x$withval" != "xno"; then
+    case "$withval" in
+      -*)
+        # TODO: In case we are cross compiling some of the provided flags
+        #       should be added to the LDFLAGS
+        cpu_architecture="$withval"
+      ;;
+      *)
+        cpu_architecture="-march=$withval"
+      ;;
+    esac
+  elif test "x$withval" = "x"; then
+    AC_MSG_ERROR([--with-architecture requires an param])
+  fi
+])
+
+if test "x$cpu_architecture" != "x"; then
+  TS_ADDTO(CFLAGS, [$cpu_architecture])
+  TS_ADDTO(CXXFLAGS, [$cpu_architecture])
+fi
+
+# 64-bit LFS support
+#
+TS_ADDTO(CPPFLAGS, [-D_LARGEFILE64_SOURCE=1])
+if test "${ac_cv_sizeof_voidp}" = "8"; then
+  TS_ADDTO(CPPFLAGS, [-D_COMPILE64BIT_SOURCE=1])
+else
+  TS_ADDTO(CPPFLAGS, [-D_FILE_OFFSET_BITS=64])
+fi
+TS_ADDTO(CPPFLAGS, [-D_GNU_SOURCE])
+TS_ADDTO(CPPFLAGS, [-D_REENTRANT])
+
+
+AC_MSG_NOTICE([Build for host OS: $host_os, arch: $host_cpu, optimization: $host_os_def])
+
+#
+# Note:  These are site-specific macro's that do various tests
+#         on the selected compilers.  There was some tunning
+#         associated with our not wanting to use GNU for _everything_.
+# Note:  This macro may set certain parameters when run.
+#
+
+#
+# CPP 11 API
+# TODO: briang, this needs to be translated to a define
+# that can be used in the c++ api to enable c++11 api features.
+#
+#AC_MSG_CHECKING([whether to enable c++11 api])
+#AC_ARG_WITH([cpp11api],
+#  [AS_HELP_STRING([--with-cpp11api],[enable support for cpp11api [default=auto]])],
+#  [cpp11api=$withval],
+#  [cpp11api=$enable_cxx_11_support]
+#)
+#AC_MSG_RESULT([$cpp11api])
+#AM_CONDITIONAL([BUILD_CPP11API], [test "$cpp11api" = yes])
+
+# Check for ccache (if explicitly enabled)
+if test "x$enable_ccache" = "xyes"; then
+    AC_CHECK_PROG([CCACHE],[ccache],[ccache],[])
+    if test "x${CCACHE}" = "xccache"; then
+        CC="$CCACHE $CC"
+        CXX="$CCACHE $CXX"
+    fi
+fi
+
+# -----------------------------------------------------------------------------
+# 4. CHECK FOR LIBRARIES
+
+AC_SEARCH_LIBS([exc_capture_context], [exc], [], [])
+AC_SEARCH_LIBS([MLD_demangle_string], [mld], [], [])
+AC_SEARCH_LIBS([dlopen], [dl], [], [])
+AC_SEARCH_LIBS([socket], [socket], [], [])
+AC_SEARCH_LIBS([gethostbyname], [nsl], [], [])
+
+dnl Linux has pthread symbol stubss in both libc ad libpthread, so it's important to test
+dnl specifically for pthread_create() here.
+AC_SEARCH_LIBS([pthread_create], [pthread], [], [])
+AC_SEARCH_LIBS([clock_gettime], [rt], [], [])
+AC_SEARCH_LIBS([clock_gettime], [posix4], [], [])
+
+dnl XXX The following check incorrectly causes the build to succeed
+dnl on Darwin. We should be using AC_SEARCH_LIBS, but rest_init is
+dnl actually present in libsystem. We are searching for the library
+dnl that contains the full Bind 9 API (which is acutally libresolv).
+dnl However, the resolv API uses macros to rename it's APIs to per-version
+dnl symbols, so standard autoconf macros cannot reasonably be used to
+dnl check for it. We need to write custom macros to detect it properly.
+AC_CHECK_LIB([resolv],[res_init],[AC_SUBST([LIBRESOLV],["-lresolv"])])
+AC_CHECK_LIB([resolv],[__putlong],[AC_SUBST([LIBRESOLV],["-lresolv"])])
+
+# Test for ncurses. We need to turn off -Werror because the C code in the
+# ncurses compile tests does not generate unused variable warnings.
+__saved_CFLAGS="$CFLAGS"
+TS_REMOVEFROM(CFLAGS, -Werror)
+AX_WITH_CURSES
+CFLAGS="$__saved_CFLAGS"
+
+AX_LIB_CURL([7.19], [
+    AM_CONDITIONAL([BUILD_TSTOP], [test "x$ax_cv_curses" = "xyes"])
+  ], [
+    AM_CONDITIONAL([BUILD_TSTOP], [false])
+  ]
+)
+
+#
+# The header_rewrite module depends on boost.
+AX_BOOST_BASE([1.33],
+  [ AM_CONDITIONAL([BUILD_HAVE_BOOST], [true]) ],
+  [ AM_CONDITIONAL([BUILD_HAVE_BOOST], [false]) ]
+)
+
+#
+# Check for SSL presence and usability
+TS_CHECK_CRYPTO
+
+#
+# Check for NextProtocolNegotiation TLS extension support.
+TS_CHECK_CRYPTO_NEXTPROTONEG
+
+#
+# Check for ALPN TLS extension support.
+TS_CHECK_CRYPTO_ALPN
+#
+# Check for EC key support.
+TS_CHECK_CRYPTO_EC_KEYS
+
+#
+# Check for ServerNameIndication TLS extension support.
+TS_CHECK_CRYPTO_SNI
+
+#
+# Check for zlib presence and usability
+TS_CHECK_ZLIB
+
+#
+# Check for lzma presence and usability
+TS_CHECK_LZMA
+
+#
+# Tcl macros provided by build/tcl.m4
+#
+# this will error out if tclConfig.sh is not found
+SC_PATH_TCLCONFIG
+
+# if tclConfig.sh loads properly, assume libraries are there and working
+SC_LOAD_TCLCONFIG
+
+# expect tclConfig.sh to populate TCL_LIB_FLAG and TCL_INCLUDE_SPEC
+if test "$host_os_def" == "darwin"; then
+    TCL_LIB_SPEC="-ltcl" # OSX fails to populate this variable
+fi
+AC_SUBST([LIBTCL],[$TCL_LIB_SPEC])
+
+
+if test "x${TCL_INCLUDE_SPEC}" != "x-I/usr/include"; then
+   TS_ADDTO(CPPFLAGS, [$TCL_INCLUDE_SPEC])
+fi
+
+#
+# Check for XML parser
+#
+TS_CHECK_XML
+if test "x${enable_xml}" != "xyes"; then
+  AC_MSG_ERROR([Need at least one XML library, --with-expat is supported])
+fi
+
+AC_CHECK_FUNCS([clock_gettime kqueue epoll_ctl posix_memalign posix_fadvise posix_madvise posix_fallocate inotify_init])
+AC_CHECK_FUNCS([lrand48_r srand48_r port_create strlcpy strlcat sysconf getpagesize])
+
+# Check for eventfd() and sys/eventfd.h (both must exist ...)
+TS_FLAG_HEADERS([sys/eventfd.h], [
+  AS_IF([test "x$enable_eventfd" = "xyes"], [
+    AC_CHECK_FUNCS([eventfd])
+  ]
+)])
+
+AC_CHECK_FUNCS(eventfd)
+
+#
+# Check for mcheck_pedantic(3)
+#
+TS_FLAG_HEADERS(mcheck.h)
+AC_CHECK_FUNCS(mcheck_pedantic)
+
+#
+# Check for pcre library
+#
+TS_CHECK_PCRE
+if test "x${enable_pcre}" != "xyes"; then
+  AC_MSG_ERROR([Cannot find pcre library. Configure --with-pcre=DIR])
+fi
+
+has_backtrace=0
+# Check for backtrace() support
+TS_FLAG_HEADERS([execinfo.h], [has_backtrace=1],[])
+if test "${has_backtrace}" = "1"; then
+  # FreeBSD requires '/usr/ports/devel/libexecinfo' for gdb style backtrace() support
+  AC_SEARCH_LIBS([backtrace], [execinfo], [have_backtrace_lib=yes])
+else
+  AC_MSG_WARN([No backtrace() support found])
+fi
+AC_SUBST(execinfoh)
+AC_SUBST(has_backtrace)
+
+use_epoll=0
+use_kqueue=0
+use_port=0
+if test "$ac_cv_func_epoll_ctl" = "yes"; then
+  use_epoll=1
+  have_good_poller=1
+  AC_MSG_NOTICE([Using epoll event interface])
+elif test "$ac_cv_func_kqueue" = "yes"; then
+  use_kqueue=1
+  have_good_poller=1
+  AC_MSG_NOTICE([Using kqueue event interface])
+elif test "$ac_cv_func_port_create" = "yes"; then
+  use_port=1
+  have_good_poller=1
+  AC_MSG_NOTICE([Using port event interface])
+else
+  AC_MSG_FAILURE([No suitable polling interface found])
+fi
+AC_SUBST(use_epoll)
+AC_SUBST(use_kqueue)
+AC_SUBST(use_port)
+
+has_profiler=0
+if test "x${with_profiler}" = "xyes"; then
+  AC_SEARCH_LIBS([ProfilerStart], [profiler],
+    [AC_SUBST([LIBPROFILER], ["-lprofiler"])
+     has_profiler=1
+    ],
+    [AC_MSG_FAILURE([check for profiler failed. Have you installed google-perftools-devel?])],
+  )
+fi
+AC_SUBST(has_profiler)
+
+# For SunPro 5.2 - we need the demangle symbol for
+#  ink_stack_trace.cc in lib/ts.  Because this
+#  library is part of the SunPro distribution, we need
+#  check with the C++ compiler since we might be using
+#  SunPro CC for the C++ compiler and gcc for the C compiler
+AC_LANG_PUSH([C++])
+AC_SEARCH_LIBS([cplus_demangle],[demangle],
+  [LIBDEMANGLE="-ldemangle"
+  ]
+)
+AC_SUBST([LIBDEMANGLE])
+AC_LANG_POP
+
+AC_MSG_CHECKING(for 128bit CAS support)
+AC_LANG_PUSH([C++])
+
+# We need to save and restore compiler flags around this whole block.
+# TS_TRY_COMPILE_NO_WARNING will save and restore flags, so if we do that in the
+# middle, then we can accidentally restore modified flags.
+__saved_CXXFLAGS="${CXXFLAGS}"
+__saved_CFLAGS="${CFLAGS}"
+
+has_128bit_cas=0
+
+TS_TRY_COMPILE_NO_WARNING([],[
+    __int128_t x = 0;
+    __sync_bool_compare_and_swap(&x,0,10);
+  ], [
+    AC_MSG_RESULT(yes)
+    has_128bit_cas=1
+  ], [
+    dnl If 128bit CAS fails, try again with the -mcx16 option. GCC needs this;
+    dnl clang doesn't; icc is unknown but presumed sane.
+    TS_ADDTO(CXXFLAGS, [-mcx16])
+    TS_ADDTO(CFLAGS, [-mcx16])
+    TS_TRY_COMPILE_NO_WARNING([],[
+        __int128_t x = 0;
+        __sync_bool_compare_and_swap(&x,0,10);
+      ], [
+        AC_MSG_RESULT(yes)
+        has_128bit_cas=1
+      ], [
+        AC_MSG_RESULT(no)
+    ])
+])
+
+CXXFLAGS="${__saved_CXXFLAGS}"
+CFLAGS="${__saved_CFLAGS}"
+AC_LANG_POP
+AC_SUBST(has_128bit_cas)
+
+AS_IF([test "x$has_128bit_cas" = "x1"], [
+  TS_ADDTO(CFLAGS, [-mcx16])
+  TS_ADDTO(CXXFLAGS, [-mcx16])
+])
+
+# Check for POSIX capabilities library.
+# If we don't find it, disable checking for header.
+use_posix_cap=0
+AS_IF([test "x$enable_posix_cap" != "xno"],
+  AC_SEARCH_LIBS([cap_set_proc],[cap],
+    [AC_SUBST([LIBCAP], ["-lcap"])
+     use_posix_cap=1
+    ],[
+     AS_IF([test "x$enable_posix_cap" == "xyes"], [
+      AC_MSG_FAILURE([POSIX capabilities enabled but system library not found.])
+     ],[
+      [enable_posix_cap=no]
+    ]    )
+   ]
+  )
+)
+AC_SUBST(use_posix_cap)
+
+#
+# If the OS is linux, we can use the '--enable-linux-native-aio' option to
+# replace the aio thread mode. Effective only on the linux system.
+#
+
+AC_MSG_CHECKING([whether to enable Linux native AIO])
+AC_ARG_ENABLE([linux-native-aio],
+  [AS_HELP_STRING([--enable-linux-native-aio], [enable native Linux AIO support @<:@default=no@:>@])],
+  [enable_linux_native_aio="${enableval}"],
+  [enable_linux_native_aio=no]
+)
+
+AS_IF([test "x$enable_linux_native_aio" = "xyes"], [
+  if test $host_os_def  != "linux"; then
+    AC_MSG_ERROR([Linux native AIO can only be enabled on Linux systems])
+  fi
+
+  AC_CHECK_HEADERS([libaio.h], [],
+    [AC_MSG_ERROR([Linux native AIO requires libaio.h])]
+  )
+
+  AC_SEARCH_LIBS([io_submit], [aio], [],
+    [AC_MSG_ERROR([Linux native AIO requires libaio])]
+  )
+
+])
+
+AC_MSG_RESULT([$enable_linux_native_aio])
+TS_ARG_ENABLE_VAR([use], [linux_native_aio])
+AC_SUBST(use_linux_native_aio)
+
+# Check for hwloc library.
+# If we don't find it, disable checking for header.
+use_hwloc=0
+AS_IF([test "x$enable_hwloc" = "xyes"], [
+  # Use pkg-config, because some distros (*cough* Ubuntu) put hwloc in unusual places.
+  PKG_CHECK_MODULES([HWLOC], [hwloc], [
+    SAVE_LIBS="$LIBS"
+    LIBS="-lhwloc"
+    AC_LANG_PUSH([C++])
+    AC_MSG_CHECKING([for hwloc C++ linking])
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([#include <hwloc.h>],[hwloc_topology_t t; hwloc_topology_init(&t); hwloc_get_type_depth(t, HWLOC_OBJ_SOCKET);])],[
+      use_hwloc=1
+      AC_SUBST([HWLOC_CFLAGS])
+      AC_SUBST([HWLOC_LIBS])
+      AC_MSG_RESULT([yes])
+      # Old versions of libhwloc don't have HWLOC_OBJ_PU.
+      AC_CHECK_DECL(HWLOC_OBJ_PU,
+        [AC_DEFINE(HAVE_HWLOC_OBJ_PU, 1, [Whether HWLOC_OBJ_PU is available])], [],
+        [#include <hwloc.h>]
+      )
+    ], [
+      AC_MSG_RESULT([no])
+      AC_MSG_WARN([hwloc not linkable, try --disable-hwloc])
+      AC_SUBST([HWLOC_CFLAGS],[""])
+      AC_SUBST([HWLOC_LIBS],[""])
+    ])
+    AC_LANG_POP()
+    LIBS="$SAVE_LIBS"
+  ], [
+    AC_MSG_WARN([hwloc not found, try --disable-hwloc])
+    AC_SUBST([HWLOC_CFLAGS],[""])
+    AC_SUBST([HWLOC_LIBS],[""])
+  ])
+])
+
+AC_SUBST(use_hwloc)
+
+#
+# Check for Maxmind APIs / includes. TODO: Long term, it might make sense to support
+# GeoIP as a "helper" plugin, which other plugins can then use. Such a plugin could
+# then manage which libraries to use via explicit dlopen()'s.
+#
+enable_maxmind_geoip=no
+TS_SEARCH_LIBRARY([GeoIP_id_by_code], [GeoIP], [
+  GEOIP_LIBS=$ts_cv_search_GeoIP_id_by_code
+  TS_FLAG_HEADERS([GeoIP.h], [ enable_maxmind_geoip=yes ])
+])
+
+AC_SUBST(GEOIP_LIBS)
+AM_CONDITIONAL([BUILD_GEOIP_PLUGIN], [ test "x${enable_maxmind_geoip}" = x"yes" ])
+
+# Right now, the healthcheck plugins requires inotify_init (and friends)
+AM_CONDITIONAL([BUILD_HEALTHCHECK_PLUGIN], [ test "$ac_cv_func_inotify_init" = "yes" ])
+
+#
+# Check for tcmalloc and jemalloc
+TS_CHECK_JEMALLOC
+TS_CHECK_TCMALLOC
+
+#
+# Check for libreadline/libedit
+AX_LIB_READLINE
+
+# On Darwin LuaJIT requires magic link options, otherwise it will crash in luaL_openlibs() at startup. See
+# http://luajit.org/install.html.
+case $host_os_def in
+  darwin)
+    TS_LUAJIT_LDFLAGS="-Wl,-pagezero_size,10000 -Wl,-image_base,100000000"
+    ;;
+esac
+
+AC_SUBST(TS_LUAJIT_LDFLAGS)
+AC_SUBST(LUA_LDFLAGS)
+
+# We should be able to build http_load if epoll(2) is available.
+AM_CONDITIONAL([BUILD_HTTP_LOAD], [test x"$ac_cv_func_epoll_ctl" = x"yes"])
+
+# Check for spdylay library
+if test "x${enable_spdy}" = "xyes"; then
+  PKG_CHECK_MODULES([SPDYLAY],[libspdylay])
+fi
+
+# -----------------------------------------------------------------------------
+# 5. CHECK FOR HEADER FILES
+
+TS_FLAG_HEADERS([sys/types.h sys/mman.h])
+TS_FLAG_HEADERS([sys/epoll.h \
+                  sys/event.h \
+                  sys/param.h \
+                  sys/pset.h \
+                  sched.h \
+                  pthread.h \
+                  pthread_np.h \
+                  machine/endian.h \
+                  endian.h \
+                  sys/sysinfo.h \
+                  sys/systeminfo.h \
+                  netinet/in.h \
+                  netinet/in_systm.h \
+                  netinet/tcp.h \
+                  sys/ioctl.h \
+                  sys/byteorder.h \
+                  sys/sockio.h \
+                  sys/prctl.h \
+                  arpa/nameser.h \
+                  arpa/nameser_compat.h \
+                  execinfo.h \
+                  netdb.h \
+                  ctype.h \
+                  siginfo.h \
+                  malloc.h \
+                  wait.h \
+                  float.h \
+                  libgen.h \
+                  values.h \
+                  alloca.h \
+                  cpio.h \
+                  stropts.h \
+                  sys/param.h \
+                  sys/sysmacros.h \
+                  math.h \
+                  stdint.h \
+                  stdbool.h \
+                  net/ppp_defs.h \
+                  ifaddrs.h\
+                  readline/readline.h \
+                  editline/readline.h ])
+
+AC_SUBST(sys_epollh)
+AC_SUBST(sys_eventh)
+AC_SUBST(machine_endianh)
+AC_SUBST(endianh)
+AC_SUBST(pthread_nph)
+AC_SUBST(sys_paramh)
+AC_SUBST(sys_cpuseth)
+AC_SUBST(sys_pseth)
+AC_SUBST(schedh)
+AC_SUBST(netinet_inh)
+AC_SUBST(netinet_in_systmh)
+AC_SUBST(netinet_tcph)
+AC_SUBST(sys_ioctlh)
+AC_SUBST(sys_byteorderh)
+AC_SUBST(sys_sockioh)
+AC_SUBST(sys_sysctlh)
+AC_SUBST(sys_sysinfoh)
+AC_SUBST(sys_systeminfoh)
+AC_SUBST(arpa_ineth)
+AC_SUBST(arpa_nameserh)
+AC_SUBST(arpa_nameser_compath)
+AC_SUBST(execinfoh)
+AC_SUBST(netdbh)
+AC_SUBST(ctypeh)
+
+AC_SUBST(siginfoh)
+AC_SUBST(malloch)
+AC_SUBST(waith)
+AC_SUBST(floath)
+AC_SUBST(libgenh)
+AC_SUBST(valuesh)
+AC_SUBST(allocah)
+AC_SUBST(cpioh)
+AC_SUBST(stroptsh)
+AC_SUBST(sys_mounth)
+AC_SUBST(sys_paramh)
+AC_SUBST(sys_sysmacrosh)
+AC_SUBST(mathh)
+AC_SUBST(net_ppp_defsh)
+AC_SUBST(ifaddrsh)
+AC_SUBST(readline_readlineh)
+
+TS_FLAG_HEADERS([sys/statfs.h sys/statvfs.h sys/disk.h sys/disklabel.h])
+
+TS_FLAG_HEADERS([sys/sysctl.h], [], [],
+                 [[#ifdef HAVE_SYS_PARAM_H
+                    #include <sys/param.h>
+                   #endif
+                 ]])
+
+TS_FLAG_HEADERS([sys/cpuset.h], [], [],
+                 [[#ifdef HAVE_SYS_PARAM_H
+                    #include <sys/param.h>
+                   #endif
+                 ]])
+
+TS_FLAG_HEADERS([sys/mount.h], [], [],
+                 [[#ifdef HAVE_SYS_PARAM_H
+                    #include <sys/param.h>
+                   #endif
+                 ]])
+
+TS_FLAG_HEADERS([arpa/inet.h], [], [],
+                 [[#ifdef HAVE_SYS_TYPES_H
+                    #include <sys/types.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_H
+                    #include <netinet/in.h>
+                   #endif
+                 ]])
+
+TS_FLAG_HEADERS([netinet/ip.h], [], [],
+                 [[#ifdef HAVE_SYS_TYPES_H
+                    #include <sys/types.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_H
+                    #include <netinet/in.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_SYSTM_H
+                    #include <netinet/in_systm.h>
+                   #endif
+                 ]])
+
+TS_FLAG_HEADERS([netinet/ip_icmp.h], [], [],
+                 [[#ifdef HAVE_SYS_TYPES_H
+                    #include <sys/types.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_H
+                    #include <netinet/in.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IP_H
+                    #include <netinet/ip.h>
+                   #endif
+                   #ifdef HAVE_NETINET_IN_SYSTM_H
+                    #include <netinet/in_systm.h>
+                   #endif
+                 ]])
+
+AC_SUBST(netinet_iph)
+AC_SUBST(netinet_ip_icmph)
+
+# Test for additional pthread interfaces.
+
+# Darwin pthread_setname_np:
+AC_MSG_CHECKING([for 1-parameter version of pthread_setname_np()])
+AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([
+#if HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+#if PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+      ], [
+        pthread_setname_np("conftest");
+    ])
+  ], [
+    AC_DEFINE(HAVE_PTHREAD_SETNAME_NP_1, 1, [Whether the 1 parameter version of pthread_setname_np() is available])
+    AC_MSG_RESULT([yes])
+  ], [
+    AC_MSG_RESULT([no])
+])
+
+# Linux pthread_setname_np:
+AC_MSG_CHECKING([for 2-parameter version of pthread_setname_np()])
+AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([
+#if HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+#if PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+      ], [
+        pthread_setname_np(pthread_self(), "conftest");
+    ])
+  ], [
+    AC_DEFINE(HAVE_PTHREAD_SETNAME_NP_2, 1, [Whether the 2 parameter version of pthread_setname_np() is available])
+    AC_MSG_RESULT([yes])
+  ], [
+    AC_MSG_RESULT([no])
+])
+
+# BSD pthread_set_name_np:
+AC_MSG_CHECKING([for 2-parameter version of pthread_set_name_np()])
+AC_LINK_IFELSE([
+    AC_LANG_PROGRAM([
+#if HAVE_PTHREAD_H
+#include <pthread.h>
+#endif
+#if PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+      ], [
+        pthread_set_name_np(pthread_self(), "conftest");
+    ])
+  ], [
+    AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP_2, 1, [Whether the 2 parameter version of pthread_set_name_np() is available])
+    AC_MSG_RESULT([yes])
+  ], [
+    AC_MSG_RESULT([no])
+])
+
+# BSD-derived systems populate the socket length in the structure itself. It's
+# redundant to check all of these, but hey, I need the typing practice.
+AC_CHECK_MEMBER([struct sockaddr.sa_len], [], [], [#include <netinet/in.h>])
+AC_CHECK_MEMBER([struct sockaddr_in.sin_len], [], [], [#include <netinet/in.h>])
+AC_CHECK_MEMBER([struct sockaddr_in6.sin6_len], [], [], [#include <netinet/in.h>])
+
+if test "x${ac_cv_member_struct_sockaddr_sa_len}" = xyes; then
+    AC_DEFINE(HAVE_STRUCT_SOCKADDR_SA_LEN, 1,
+            [Whether struct sockaddr_in has the sa_len member])
+fi
+
+if test "x${ac_cv_member_struct_sockaddr_in_sin_len}" = xyes ; then
+AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN_SIN_LEN, 1,
+            [Whether struct sockaddr_in has the sin_len member])
+fi
+
+if test "x${ac_cv_member_struct_sockaddr_in6_sin6_len}" = xyes; then
+    AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN, 1,
+            [Whether struct sockaddr_in6 has the sin6_len member])
+fi
+
+if test "x${with_profiler}" = "xyes"; then
+TS_FLAG_HEADERS([google/profiler.h \
+                  ], [], [])
+fi
+
+if test "x${enable_posix_cap}" != "xno"; then
+  AC_CHECK_HEADERS([sys/capability.h],
+    [],
+    [AC_MSG_FAILURE([Found POSIX capabilities library but not the header sys/capability.h. POSIX capabilities are not a required feature, you can disable then with --disable-posix-cap])],
+    []
+  )
+fi
+
+# Check for high-resolution timestamps in struct stat
+AC_CHECK_MEMBERS([struct stat.st_mtimespec.tv_nsec])
+AC_CHECK_MEMBERS([struct stat.st_mtim.tv_nsec])
+
+
+#
+# Configure sockopt value for TPROXY. Look at the enable flag.
+# Value 'no' means user forced disable, don't check anything else.
+#       'auto' means user didn't say, so silently enable/disable
+#              based on success.
+#       A numeric value means enable, don't check, use that value.
+#       Anything else means user forced, fail if value not found
+#       in header file.
+# We can't just include linux/in.h because it's incompatible with
+# netinet/in.h.
+# Verify the file exists (is readable), scan for the value we need,
+# if found export the value and enable use of the value.
+#
+ip_transparent=0
+use_tproxy=0
+tproxy_header=/usr/include/linux/in.h
+tproxy_usage_enable="
+    --enable-tproxy Enable the feature and validate."
+tproxy_usage_default="
+    --enable-tproxy=force Enable using default sockopt value, no validation."
+tproxy_usage_numeric="
+    --enable-tproxy=X where X is numeric
+                      Enable, use X for sockopt value, no validation."
+tproxy_usage_disable="
+    --disable-tproxy Disable feature, no validation."
+proxy_usage="$tproxy_usage_enable$tproxy_usage_default$tproxy_usage_numeric$tproxy_usage_disable"
+
+AC_MSG_CHECKING([whether to enable transparent proxy])
+AS_IF([test "x$enable_tproxy" != "xno"], [
+  AS_IF([test "$use_posix_cap" -eq 0], [
+    AS_IF([test "x$enable_tproxy" = xauto], [
+      AC_MSG_RESULT([no])
+    ],[
+      AC_MSG_FAILURE([TPROXY feature requires POSIX capabilities.])
+    ])
+  ],[
+    AC_MSG_CHECKING([for TPROXY sockopt IP_TRANSPARENT])
+    case "$enable_tproxy" in
+      [[0-9][0-9]*])
+        ip_transparent=$enable_tproxy
+        use_tproxy=1
+        AC_MSG_RESULT([forced to $ip_transparent])
+        ;;
+      force)
+        ip_transparent=19
+        use_tproxy=1
+        AC_MSG_RESULT([forced to $ip_transparent])
+        ;;
+      yes|auto)
+        AS_IF([test -r $tproxy_header], [
+          ip_transparent=`$AWK "/^#define[ \t]+IP_TRANSPARENT[ \t]+[0-9]+/{print \\$3}" $tproxy_header`
+          AS_IF([test "x$ip_transparent" != "x"], [
+            use_tproxy=1
+            AC_MSG_RESULT([set to $ip_transparent])
+          ],[
+            ip_transparent=0
+            AS_IF([test "x$enable_tproxy" = xauto], [
+             AC_MSG_RESULT([no])
+            ],[
+              AC_MSG_RESULT([failed])
+              AC_MSG_FAILURE([tproxy feature enabled but the sockopt value was not found in $tproxy_header. Try one of$tproxy_usage_default$tproxy_usage_numeric$tproxy_usage_disable])
+            ])
+          ])
+        ],[
+          AS_IF([test "x$enable_tproxy" = xauto], [
+            AC_MSG_RESULT([no])
+          ],[
+            AC_MSG_RESULT([failed])
+            AC_MSG_FAILURE([tproxy feature enabled but the header file $tproxy_header was not readable. Try one of$tproxy_usage_default$tproxy_usage_numeric$tproxy_usage_disable])
+          ])
+        ])
+        ;;
+      *)
+        AC_MSG_RESULT([failed])
+        AC_MSG_FAILURE([Invalid argument to feature tproxy.$tproxy_usage])
+        ;;
+      esac
+  ])
+])
+
+AC_SUBST(use_tproxy)
+AC_SUBST(ip_transparent)
+
+AC_MSG_CHECKING([for SO_MARK])
+AC_TRY_COMPILE([
+#include <sys/socket.h>
+], [
+if( SO_MARK > 0) return 0;
+else return 1;
+], [has_so_mark=1]
+msg=yes, [
+has_so_mark=0
+msg=no ] )
+
+AC_MSG_RESULT([$msg])
+AC_SUBST(has_so_mark)
+
+AC_MSG_CHECKING([for IP_TOS])
+AC_TRY_COMPILE([
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+],[
+if( IP_TOS > 0) return 0;
+else return 1;
+], [has_ip_tos=1]
+msg=yes, [
+has_ip_tos=0
+msg=no ] )
+
+AC_MSG_RESULT([$msg])
+AC_SUBST(has_ip_tos)
+
+TS_CHECK_LOOPBACK_IFACE
+TS_CHECK_GETHOSTBYNAME_R_STYLE
+TS_CHECK_MACRO_IN6_IS_ADDR_UNSPECIFIED
+
+AC_CHECK_TYPE([struct tcp_info],
+  [AC_DEFINE(HAVE_STRUCT_TCP_INFO, 1, [whether struct tcp_info is available])],
+  [],
+  [[
+   #include <netinet/in.h>
+   #include <netinet/tcp.h>
+  ]]
+)
+
+# See if we can build the remap_stats plugin
+AS_IF([test "x$enable_experimental_plugins" = xyes],
+  [
+    AC_CHECK_HEADERS([search.h])
+    AS_IF([test "x$ac_cv_header_search_h" = "xyes"],
+      [
+        AC_CHECK_TYPE([struct hsearch_data],[],[],[[#include <search.h>]])
+        AC_CHECK_FUNCS([hcreate_r hsearch_r])
+      ])
+  ])
+AM_CONDITIONAL([BUILD_REMAP_STATS_PLUGIN],
+  [ test "x$enable_experimental_plugins" = "xyes" -a "x$ac_cv_header_search_h" = "xyes" -a "x$ac_cv_type_struct_hsearch_data" = "xyes" -a "x$ac_cv_func_hcreate_r" = "xyes" -a "x$ac_cv_func_hsearch_r" = "xyes" ])
+
+AM_CONDITIONAL([BUILD_COLLAPSED_CONNECTION_PLUGIN],
+  [ test "x$enable_experimental_plugins" = "xyes" -a "x${enable_collapsed_connection_plugin}" != "xno" ])
+
+#
+# use modular IOCORE
+#
+iocore_include_dirs="-I\$(top_srcdir)/iocore/eventsystem \
+-I\$(top_srcdir)/iocore/net \
+-I\$(top_srcdir)/iocore/aio \
+-I\$(top_srcdir)/iocore/hostdb \
+-I\$(top_srcdir)/iocore/cache \
+-I\$(top_srcdir)/iocore/cluster \
+-I\$(top_srcdir)/iocore/utils \
+-I\$(top_srcdir)/iocore/dns"
+
+# Testing Framework suffix generation hack
+TFW_PACKAGE_SUFFIX=$os_type
+
+MGMT_DEFS="$MGMT_DEFS -DMGMT_USE_SYSLOG"
+
+AC_SUBST([API_DEFS])
+AC_SUBST([CC])
+AC_SUBST([CFLAGS])
+AC_SUBST([CXX])
+AC_SUBST([CXXFLAGS])
+AC_SUBST([EXPAT_LDFLAGS])
+AC_SUBST([EXTRA_CC_LDFLAGS])
+AC_SUBST([EXTRA_CXX_LDFLAGS])
+AC_SUBST([LIBTOOL_LINK_FLAGS])
+AC_SUBST([iocore_include_dirs])
+AC_SUBST([LDFLAGS])
+AC_SUBST([MGMT_DEFS])
+AC_SUBST([SHARED_CFLAGS])
+AC_SUBST([SHARED_CXXFLAGS])
+AC_SUBST([SHARED_CXXLINKFLAGS])
+AC_SUBST([SHARED_LDFLAGS])
+AC_SUBST([TFW_PACKAGE_SUFFIX])
+
+# -----------------------------------------------------------------------------
+# 6. OUTPUT FILES
+
+AC_CONFIG_FILES([
+  Makefile
+  cmd/Makefile
+  cmd/traffic_cop/Makefile
+  cmd/traffic_line/Makefile
+  cmd/traffic_top/Makefile
+  doc/Doxyfile
+  doc/Makefile
+  example/Makefile
+  iocore/Makefile
+  iocore/aio/Makefile
+  iocore/cache/Makefile
+  iocore/cluster/Makefile
+  iocore/dns/Makefile
+  iocore/eventsystem/Makefile
+  iocore/hostdb/Makefile
+  iocore/net/Makefile
+  iocore/utils/Makefile
+  lib/Makefile
+  lib/perl/Makefile
+  lib/perl/lib/Apache/TS.pm
+  lib/records/Makefile
+  lib/ts/Makefile
+  lib/ts/apidefs.h
+  lib/ts/ink_config.h
+  lib/tsconfig/Makefile
+  lib/wccp/Makefile
+  mgmt/Makefile
+  mgmt/api/Makefile
+  mgmt/api/include/Makefile
+  mgmt/cluster/Makefile
+  mgmt/stats/Makefile
+  mgmt/utils/Makefile
+  mgmt/web2/Makefile
+  plugins/Makefile
+  plugins/cacheurl/Makefile
+  plugins/conf_remap/Makefile
+  plugins/gzip/Makefile
+  plugins/header_rewrite/Makefile
+  plugins/libloader/Makefile
+  plugins/regex_remap/Makefile
+  plugins/stats_over_http/Makefile
+  plugins/tcpinfo/Makefile
+  proxy/Makefile
+  proxy/api/ts/Makefile
+  proxy/config/Makefile
+  proxy/config/body_factory/Makefile
+  proxy/config/body_factory/default/Makefile
+  proxy/config/records.config.default
+  proxy/config/storage.config.default
+  proxy/congest/Makefile
+  proxy/hdrs/Makefile
+  proxy/http/Makefile
+  proxy/http/remap/Makefile
+  proxy/logging/Makefile
+  proxy/shared/Makefile
+  proxy/spdy/Makefile
+  rc/Makefile
+  rc/trafficserver
+  rc/trafficserver.conf
+  rc/trafficserver.service
+  rc/trafficserver.xml
+  tools/Makefile
+  tools/tsxs
+])
+
+AS_IF([test "x$enable_experimental_plugins" = xyes], [
+  AC_CONFIG_FILES([
+    plugins/experimental/Makefile
+    plugins/experimental/authproxy/Makefile
+    plugins/experimental/background_fetch/Makefile
+    plugins/experimental/balancer/Makefile
+    plugins/experimental/buffer_upload/Makefile
+    plugins/experimental/channel_stats/Makefile
+    plugins/experimental/collapsed_connection/Makefile
+    plugins/experimental/custom_redirect/Makefile
+    plugins/experimental/escalate/Makefile
+    plugins/experimental/esi/Makefile
+    plugins/experimental/geoip_acl/Makefile
+    plugins/experimental/healthchecks/Makefile
+    plugins/experimental/hipes/Makefile
+    plugins/experimental/metalink/Makefile
+    plugins/experimental/remap_stats/Makefile
+    plugins/experimental/regex_revalidate/Makefile
+    plugins/experimental/s3_auth/Makefile
+    plugins/experimental/stale_while_revalidate/Makefile
+    plugins/experimental/ts_lua/Makefile
+    plugins/experimental/url_sig/Makefile
+    plugins/experimental/xdebug/Makefile
+])])
+
+AS_IF([test "x$enable_cppapi" = xyes], [
+  AC_CONFIG_FILES([
+  lib/atscppapi/Makefile
+  lib/atscppapi/examples/Makefile
+  lib/atscppapi/examples/async_http_fetch/Makefile
+  lib/atscppapi/examples/async_timer/Makefile
+  lib/atscppapi/examples/clientredirect/Makefile
+  lib/atscppapi/examples/clientrequest/Makefile
+  lib/atscppapi/examples/customresponse/Makefile
+  lib/atscppapi/examples/boom/Makefile
+  lib/atscppapi/examples/globalhook/Makefile
+  lib/atscppapi/examples/gzip_transformation/Makefile
+  lib/atscppapi/examples/helloworld/Makefile
+  lib/atscppapi/examples/intercept/Makefile
+  lib/atscppapi/examples/internal_transaction_handling/Makefile
+  lib/atscppapi/examples/logger_example/Makefile
+  lib/atscppapi/examples/multiple_transaction_hooks/Makefile
+  lib/atscppapi/examples/null_transformation_plugin/Makefile
+  lib/atscppapi/examples/post_buffer/Makefile
+  lib/atscppapi/examples/remap_plugin/Makefile
+  lib/atscppapi/examples/serverresponse/Makefile
+  lib/atscppapi/examples/stat_example/Makefile
+  lib/atscppapi/examples/timeout_example/Makefile
+  lib/atscppapi/examples/transactionhook/Makefile
+  lib/atscppapi/src/Makefile
+])])
+
+
+# -----------------------------------------------------------------------------
+# 7. autoheader TEMPLATES
+
+AC_OUTPUT
+
+AC_MSG_NOTICE([Build option summary:
+    CC:                 $CC
+    CXX:                $CXX
+    CPP:                $CPP
+    CFLAGS:             $CFLAGS
+    SHARED_CFLAGS:      $SHARED_CFLAGS
+    CXXFLAGS:           $CXXFLAGS
+    SHARED_CXXFLAGS:    $SHARED_CXXFLAGS
+    SHARED_CXXLINKFLAGS:$SHARED_LINKCXXFLAGS
+    CPPFLAGS:           $CPPFLAGS
+    LDFLAGS:            $LDFLAGS
+    SHARED_LDFLAGS:     $SHARED_LDFLAGS
+    EXTRA_CC_LDFLAGS:   $EXTRA_CC_LDFLAGS
+    EXTRA_CXX_LDFLAGS:  $EXTRA_CXX_LDFLAGS
+    LIBTOOL_LINK_FLAGS: $LIBTOOL_LINK_FLAGS
+    MGMT_DEFS:          $MGMT_DEFS
+    API_DEFS:           $API_DEFS
+])
diff --git a/contrib/install_trafficserver.sh b/contrib/install_trafficserver.sh
new file mode 100644
index 00000000..d7e0ad7c
--- /dev/null
+++ b/contrib/install_trafficserver.sh
@@ -0,0 +1,401 @@
+#!/bin/bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
+# Quick Build/Test for TrafficServer
+# Tested on Ubuntu Karmic 9.10, EC2 Friendly with official Canonical AMIs
+# Author: Jason Giedymin
+# Desc: The intent with this script is to unify a single build script with
+#       standard options for testing.
+#
+# Version Information:
+#    v0.1.1a - Added Debug
+#    v1.0.0  - Stable Release
+#    v1.0.1  - Added sqlite dev lib.
+#    v1.0.2  - EC2 Note about ephemeral storage
+#            - Create ephemeral storage by mimicking on non EC2 systems.
+#    v1.0.3  - Added fedora to list of supported distros
+#    v1.0.4  - Added fedora EC2 compatibility
+#            - Added EC2 detection, option
+
+# It's safe to use this in a non-ec2 environment. This directory will be
+# created if it doesn't exist. If your running this on EC2, it's best not
+# to change this location as this is the ephemeral drive setup by Amazon.
+# For non-ec2 environments, you may change this to any location you
+# desire.
+EC2_EPHEMERAL=/mnt
+PROJECT=trafficserver
+
+BRANCH=traffic/trunk
+SVN_LOC=traffic-trunk.svn
+SVN_HOME=http://svn.apache.org/repos/asf/incubator
+
+FALSE=0
+TRUE=1
+DEBUG=$FALSE
+USING_EC2=$FALSE
+BUILD_HOME=/usr/local
+PREFIX=--prefix=$BUILD_HOME
+BUILD_OPTIONS="$PREFIX"
+BUILD_OPTIONS_DEBUG="--with-user=root --with-group=root --enable-debug"
+BUILD_OPTIONS_FC8_EC2="--disable-eventfd"
+CONFIGURE_OPTIONS=""
+FULL_BUILD_PATH=$EC2_EPHEMERAL/$PROJECT/$SVN_LOC
+
+SUSE="suse"
+FEDORA="fedora"
+REDHAT="redhat" # also exists on Fedora
+UBUNTU="ubuntu"
+DEBIAN="debian" # also exists on Ubuntu
+SLACKWARE="slackware"
+
+
+function killAll() {
+    killall traffic_cop
+    killall traffic_manager
+    killall traffic_server
+}
+
+function updateInstall() {
+    if [ "$DISTRIB_ID" = "$UBUNTU" ]; then
+        apt-get update
+        apt-get install -y g++ autoconf \
+        make \
+        libtool \
+        libssl-dev \
+        tcl-dev \
+        libexpat1-dev \
+        libpcre3-dev \
+        curl
+        apt-get install -y subversion git git-svn
+    elif [ "$DISTRIB_ID" = "$FEDORA" ]; then
+        yum update
+        yum upgrade
+
+        # Chose not to use kernel version here as FC8 xen needs more than just eventfd work
+        if [ $USING_EC2 = $TRUE ]; then
+            yum -y install subversion \
+                git \
+                autoconf \
+                automake \
+                libtool \
+                gcc-c++ \
+                glibc-devel \
+                openssl-devel \
+                tcl-devel \
+                expat-devel \
+                db4-devel \
+                pcre \
+                pcre-devel
+        elif [ $USING_EC2 = $FALSE ]; then
+            yum -y install subversion \
+                git \
+                autoconf \
+                automake \
+                libtool \
+                gcc-c++ \
+                glibc-devel \
+                openssl-devel \
+                tcl-devel \
+                expat-devel \
+                pcre \
+                pcre-devel
+        fi
+    fi
+}
+
+function cleanUp() {
+    if [ -e $EC2_EPHEMERAL/$PROJECT ]; then
+            rm -R $EC2_EPHEMERAL/$PROJECT
+    fi
+
+    if [ ! -d $EC2_EPHEMERAL ]; then
+        mkdir -p $EC2_EPHEMERAL
+        cd $EC2_EPHEMERAL
+    fi
+}
+
+function svnCheckout() {
+    #----------------SVN Only------------------------------
+    svn checkout   $SVN_HOME/$PROJECT/$BRANCH   $FULL_BUILD_PATH
+    cd $FULL_BUILD_PATH
+    #------------------------------------------------------
+}
+
+#This is just for some dev/testing, and still in the 'works'
+function dev() {
+    #----------------Git Only------------------------------
+    git clone git://git.apache.org/trafficserver.git
+    cd $EC2_EPHEMERAL/$trafficserver
+
+    #swtich to dev build
+    git checkout -b remotes/origin/dev
+    #------------------------------------------------------
+}
+
+function handleGroups() {
+
+    # maybe someday some extra security can be put in around here
+    # and yeah, force add the group
+    if [ "$DISTRIB_ID" = "$UBUNTU" ]; then
+        addgroup nobody
+    elif [ "$DISTRIB_ID" = "$FEDORA" ]; then
+        groupadd nobody
+    fi
+}
+
+function getConfigureOptions() {
+    configureOptions="$BUILD_OPTIONS"
+
+    if [ $DEBUG = $TRUE ]; then
+        configureOptions="$configureOptions $BUILD_OPTIONS_DEBUG"
+    fi
+
+    if [ $USING_EC2 = $TRUE ]; then
+        if [ "$DISTRIB_ID" = "$FEDORA" ]; then
+            configureOptions="$configureOptions $BUILD_OPTIONS_FC8_EC2"
+        fi
+    fi
+
+    CONFIGURE_OPTIONS=$configureOptions
+}
+
+function rebuild() {
+    # remake, clean, uninstall first
+
+    if [ ! -d $FULL_BUILD_PATH ]; then
+        echo "Can't find $FULL_BUILD_PATH, cannot continue!";
+        exit 1;
+    fi
+
+    handleGroups
+
+    cd $FULL_BUILD_PATH
+    autoreconf -i --force
+    ./configure $CONFIGURE_OPTIONS
+
+    make clean
+
+    # Here is where things are dumb.  We don't check for
+    # successful builds yet.  Thats in the next release.
+    # This is why I call it dumb.
+    make
+    make uninstall
+    make install
+}
+
+function postMods() {
+    # Flag verbose on, we like verbose
+    if [ -e /etc/default/rcS ]; then
+        sed -i 's/VERBOSE=no/VERBOSE=yes/g' /etc/default/rcS
+    fi
+
+    # Link the script for init purposes, makes things nice
+    if [ -e $BUILD_HOME/bin/trafficserver ]; then
+        ln -s -f $BUILD_HOME/bin/trafficserver /etc/init.d/trafficserver
+    fi
+}
+
+function freshBuild() {
+    clear
+    echo "Starting TrafficServer Install (dumb) process..."
+
+    killAll
+    updateInstall
+    cleanUp
+    svnCheckout
+    rebuild
+    postMods
+
+    echo;
+    echo "TrafficServer Install (dumb) process complete."
+}
+
+function forceBuild() {
+    clear
+    echo "Starting Build Only..."
+
+    killAll
+    updateInstall
+    rebuild
+    postMods
+
+    echo "Build complete."
+}
+
+function flipDebug() {
+    if [ $DEBUG = $TRUE ]; then
+        DEBUG=$FALSE
+    elif [ $DEBUG = $FALSE ]; then
+        DEBUG=$TRUE
+    fi
+
+    getConfigureOptions;
+}
+
+function flipEC2() {
+    if [ $USING_EC2 = $TRUE ]; then
+        USING_EC2=$FALSE
+    elif [ $USING_EC2 = $FALSE ]; then
+        USING_EC2=$TRUE
+    fi
+
+    getConfigureOptions;
+}
+
+# Crude but it works without complex regex, and some people remove ec2/ami tools for security...
+function detectEC2() {
+    if [ -e /etc/ec2_version ]; then #UBUNTU
+        USING_EC2=$TRUE
+    elif [ -e /etc/ec2/release-notes ]; then #FEDORA
+        USING_EC2=$TRUE
+    fi
+}
+
+function askUser() {
+usage;
+echo;
+
+usageLine;
+
+read -p "" RESPONSE
+
+if [ "$RESPONSE" = "freshBuild" ]; then
+    $RESPONSE;
+    exit 0;
+elif [ "$RESPONSE" = "forceBuild" ]; then
+    $RESPONSE;
+    exit 0;
+elif [ "$RESPONSE" = "flipDebug" ]; then
+    $RESPONSE;
+    askUser;
+elif [ "$RESPONSE" = "flipEC2" ]; then
+    $RESPONSE;
+    askUser;
+elif [ "$RESPONSE" = "EXIT" ]; then
+    echo "Exiting NOW!"
+    exit 0;
+else
+    #usageLine;
+    askUser;
+    return 1;
+fi
+
+}
+
+function usage() {
+    clear
+    echo;
+    echo 'This script is used for doing quick builds & Tests for TrafficServer.';
+    echo;
+    displayInfo;
+    echo;
+    echo "Commands:";
+    echo 'freshBuild: Checkout from svn, build and install.';
+    echo 'forceBuild: Do a build from previous checked out source.';
+    echo 'flipDebug: Flip the current debug mode.';
+    echo 'flipEC2: Flip the current EC2 mode.';
+    echo 'EXIT: Exit now!';
+    echo;
+}
+
+function displayInfo() {
+    #Would like to make these editable in the next release.
+
+    echo "-----------------------------------------------------------------------"
+    echo "                         Current Options                               "
+    echo "-----------------------------------------------------------------------"
+    echo "                 OS: $DISTRIB_ID"
+
+    if [ $DEBUG = $TRUE ]; then
+        echo "         Debug Mode: ON"
+        else
+        echo "         Debug Mode: OFF"
+    fi
+
+    if [ $USING_EC2 = $TRUE ]; then
+        echo "           EC2 Mode: ON"
+        else
+        echo "           EC2 Mode: OFF"
+    fi
+
+    echo "    Source checkout: $EC2_EPHEMERAL/$PROJECT"
+    echo "             Branch: $BRANCH"
+    echo "         SVN Server: $SVN_HOME"
+    echo "  Configure Options: $CONFIGURE_OPTIONS"
+    echo "    Full Build Path: $FULL_BUILD_PATH"
+    echo "-----------------------------------------------------------------------"
+}
+
+function usageLine() {
+    echo;
+    echo "You can  access the menu by calling this script or by command line."
+    echo "Menu usage and choices are: {freshBuild|forceBuild|flipDebug|flipEC2|EXIT}."
+    echo "Command line usage choices are: {freshBuild|forceBuild|freshDebugBuild|EXIT}."
+    echo;
+    echo "Notes:"
+    echo " - the command line has a strict debug build option."
+    echo " - when using the command line build, EC2 detection is automatic."
+    echo;
+}
+
+#------------Main------------
+
+if [ $UID != 0 ] ; then
+    echo "Must have root permissions to execute."
+    exit 1
+fi
+
+if [ -e /etc/SuSE-release ]; then
+    DISTRIB_ID=$SUSE
+elif [ -e /etc/fedora-release ]; then
+    DISTRIB_ID=$FEDORA
+elif [ -e /etc/redhat-release ]; then
+    DISTRIB_ID=$REDHAT # also exists on Fedora
+elif [ -e /etc/lsb-release ]; then
+    DISTRIB_ID=$UBUNTU
+elif [ -e /etc/debian-version ]; then
+    DISTRIB_ID=$DEBIAN # also exists on Ubuntu
+elif [ -e /etc/slackware-version ]; then
+    DISTRIB_ID=$SLACKWARE
+fi
+
+detectEC2;
+getConfigureOptions;
+displayInfo;
+
+case "$1" in
+  freshBuild)
+    $1;
+    ;;
+  forceBuild)
+    $1;
+    ;;
+  freshDebugBuild)
+    $DEBUG=$TRUE
+    freshBuild;
+    ;;
+  EXIT)
+    echo 'Exiting...';
+    exit 0;
+    ;;
+  *)
+    askUser;
+    ;;
+esac
+
+exit 0;
diff --git a/contrib/make-ssl-multicert b/contrib/make-ssl-multicert
new file mode 100755
index 00000000..901c57b9
--- /dev/null
+++ b/contrib/make-ssl-multicert
@@ -0,0 +1,47 @@
+#! /usr/bin/env bash
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+
+# make-ssl-multicert: generate arbitrary numbers of SSL certificates
+# Generate up to $COUNT SSL certificates and the corresponding ssl_multicert.config
+
+OPENSSL=${OPENSSL:-openssl}
+COUNT=${COUNT:-100001}
+NPROCS=${NPROC:-$(getconf _NPROCESSORS_ONLN)}
+
+makecert() {
+  name=$1
+
+  $OPENSSL genrsa -out ${name}.key 2048
+  $OPENSSL req -new -key ${name}.key -out ${name}.csr \
+    -subj /C=US/ST=CA/L=Norm/O=TrafficServer/OU=Test/CN=${name}.com
+  $OPENSSL x509 -req -days 365 \
+    -in ${name}.csr -signkey ${name}.key -out ${name}.crt
+  cat ${name}.crt ${name}.key > ${name}.pem
+  rm -rf ${name}.csr ${name}.key ${name}.crt
+}
+
+for (( i = 0 ; i < $COUNT ; i += $NPROCS )); do
+
+  for ((j = i; j < (i + $NPROCS) && j < $COUNT; j++ )) ; do
+    makecert "test${j}" &
+  done
+
+  wait
+
+  for ((j = i; j < (i + $NPROCS) && j < $COUNT; j++ )) ; do
+    echo ssl_cert_name=test$j.pem
+  done >> ssl_multicert.config
+done
diff --git a/contrib/manifests/debian.pp b/contrib/manifests/debian.pp
new file mode 100644
index 00000000..dcf94520
--- /dev/null
+++ b/contrib/manifests/debian.pp
@@ -0,0 +1,43 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Base ATS build dependencies.
+package {[
+    'gcc', 'g++', 'automake', 'autoconf', 'libtool', 'pkg-config',
+    'libssl-dev', 'tcl-dev', 'libexpat1-dev', 'libpcre3-dev', 'libhwloc-dev',
+    'libcurl3-dev', 'libncurses5-dev', 'libaio-dev',
+    'libcap-dev', 'libcap2', 'bison', 'flex', 'make',
+    'libmodule-install-perl',
+  ]:
+  ensure => latest
+}
+
+# Development extras.
+package {[
+    'gdb', 'valgrind', 'git', 'ack-grep', 'curl', 'tmux', 'screen',
+    'ccache', 'python-sphinx',
+  ]:
+  ensure => latest
+}
+
+# if there is clang-3.4 available, install it:
+if $::lsbdistcodename == 'saucy' {
+  package {[
+      'clang-3.4', 'clang-format-3.4'
+    ]:
+    ensure => latest,
+  }
+}
diff --git a/contrib/manifests/omnios.sh b/contrib/manifests/omnios.sh
new file mode 100644
index 00000000..75b5a4fa
--- /dev/null
+++ b/contrib/manifests/omnios.sh
@@ -0,0 +1,38 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+pkg set-publisher -g http://pkg.omniti.com/omniti-ms/ ms.omniti.com
+
+pkg refresh
+
+# Base ATS build dependencies.
+pkg install \
+  developer/gcc46 \
+  developer/object-file \
+  developer/linker \
+  developer/library/lint \
+  system/header \
+  system/library/math/header-math \
+  developer/lexer/flex \
+  developer/parser/bison \
+  developer/build/libtool \
+  developer/versioning/git \
+  omniti/runtime/tcl-8 \
+  developer/build/automake-111 \
+  developer/build/autoconf \
+  developer/build/gnu-make || true
+
+pkg update || true
diff --git a/contrib/manifests/redhat.pp b/contrib/manifests/redhat.pp
new file mode 100644
index 00000000..b80374b5
--- /dev/null
+++ b/contrib/manifests/redhat.pp
@@ -0,0 +1,61 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# These packages really need to be installed before anything happens.
+package {['nfs-utils', 'redhat-lsb']:
+  ensure =>latest
+}
+
+$source = $lsbmajdistrelease ? {
+  '5' => 'http://mirror.pnl.gov/epel/5/i386/epel-release-5-4.noarch.rpm',
+  '6' => 'http://mirror.pnl.gov/epel/6/i386/epel-release-6-8.noarch.rpm',
+  default => 'http://mirror.pnl.gov/epel/7/i386/epel-release-7-2.noarch.rpm',
+}
+
+package {'epel-release':
+  source => $source,
+  provider => rpm,
+  ensure => present,
+}
+
+# Base ATS build dependencies.
+package {[
+    'gcc', 'gcc-c++', 'automake', 'autoconf', 'libtool', 'pkgconfig',
+    'openssl-devel', 'tcl-devel', 'expat-devel', 'pcre-devel',
+    'ncurses-devel', 'libaio-devel',
+    'hwloc-devel', 'libcap-devel', 'bison', 'flex', 'make',
+  ]:
+  ensure => latest
+}
+
+package { $lsbmajdistrelease ? { '5' => 'curl-devel', default => 'libcurl-devel'}:
+  ensure => latest
+}
+
+# RHEL/CentOS 5 doesn't have MakeMaker and I don't know what package to use instead :(
+if $lsbmajdistrelease != '5' {
+  package{'perl-ExtUtils-MakeMaker':
+    ensure => latest
+  }
+}
+
+# development extras.
+package {[
+    'gdb', 'valgrind', 'git', 'curl', 'screen', 'ccache'
+  ]:
+  ensure => latest,
+  require => Package['epel-release']
+}
diff --git a/contrib/python/compare_RecordsConfigcc.py b/contrib/python/compare_RecordsConfigcc.py
new file mode 100644
index 00000000..80c74123
--- /dev/null
+++ b/contrib/python/compare_RecordsConfigcc.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import re
+import sys
+import string
+
+try:
+    src_dir = sys.argv[1]
+except IndexError:
+    print "Usage: %s [trafficserver_source_dir]" % sys.argv[0]
+    print "Compares values in RecordsConfig.cc with the default records.config file"
+    sys.exit(1)
+
+# We expect these keys to differ between files, so ignore them
+ignore_keys = {
+    "proxy.config.ssl.server.cert.path": 1,
+    "proxy.config.admin.user_id": 1,
+    "proxy.config.ssl.client.cert.path": 1,
+    "proxy.config.alarm_email": 1,
+    "proxy.config.log.logfile_dir": 1,
+    "proxy.config.ssl.CA.cert.path": 1,
+    "proxy.config.ssl.server.private_key.path": 1,
+    "proxy.config.ssl.client.CA.cert.path": 1,
+    "proxy.config.ssl.server.private_key.path": 1,
+    "proxy.config.ssl.client.CA.cert.path": 1,
+    "proxy.config.config_dir": 1,
+    "proxy.config.proxy_name": 1,
+    "proxy.config.cluster.ethernet_interface": 1,
+    "proxy.config.ssl.client.private_key.path": 1,
+    "proxy.config.net.defer_accept": 1 # Specified in RecordsConfig.cc funny
+}
+
+rc_cc = {}  # RecordsConfig.cc values
+rc_in = {}  # records.config.in values
+rc_doc = {} # documented values
+
+# Process RecordsConfig.cc
+with open("%s/mgmt/RecordsConfig.cc" % src_dir) as fh:
+  cc_re = re.compile(r'\{RECT_(?:CONFIG|LOCAL), "([^"]+)", RECD_([A-Z]+), (.+?), ')
+  for line in fh:
+      m = cc_re.search(line)
+      if m:
+          value = m.group(3)
+          value = string.lstrip(value, '"')
+          value = string.rstrip(value, '"')
+          rc_cc[m.group(1)] = (m.group(2), value)
+
+# Process records.config.default.in
+with open("%s/proxy/config/records.config.default.in" % src_dir) as fh:
+  in_re = re.compile(r'(?:CONFIG|LOCAL) (\S+)\s+(\S+)\s+(\S+)')
+  for line in fh:
+      m = in_re.match(line)
+      if m:
+          rc_in[m.group(1)] = (m.group(2), m.group(3))
+
+# Process records.comfig documentation.
+# eg. .. ts:cv:: CONFIG proxy.config.proxy_binary STRING traffic_server
+with open("%s/doc/reference/configuration/records.config.en.rst" % src_dir) as fh:
+  doc_re = re.compile(r'ts:cv:: CONFIG (\S+)\s+(\S+)\s+(\S+)')
+  for line in fh:
+      m = doc_re.search(line)
+      if m:
+          rc_doc[m.group(1)] = (m.group(2), m.group(3))
+          rc_doc[m.group(1)] = (m.group(2), m.group(3))
+
+# Compare the two
+# If a value is in RecordsConfig.cc  and not records.config.default.in, it is
+# ignored right now.
+print "# Comparing RecordsConfig.cc -> records.config.default.in"
+for key in rc_in:
+    if key in ignore_keys:
+        continue
+    if key not in rc_cc:
+        print "%s missing -> %s" % (key, "%s %s" % rc_in[key])
+        continue
+    if rc_cc[key] != rc_in[key]:
+        print "%s : %s -> %s" % (key, "%s %s" % rc_cc[key], "%s %s" % rc_in[key])
+
+# Search for undocumented variables ...
+missing = [ k for k in rc_cc if k not in rc_doc ]
+if len(missing) > 0:
+    print
+    print "Undocumented configuration variables:"
+    for m in sorted(missing):
+        print "\t%s %s" % (m, "%s %s" % rc_cc[m])
+
+# Search for incorrectly documented default values ...
+defaults = [ k for k in rc_cc if k in rc_doc and rc_cc[k] != rc_doc[k] ]
+if len(defaults) > 0:
+    print
+    print "Incorrectly documented defaults:"
+    for d in sorted(defaults):
+        print "\t%s %s -> %s" % (d, "%s %s" % rc_cc[d], "%s %s" % rc_doc[d])
+
+
+# Search for stale documentation ...
+stale = [ k for k in rc_doc if k not in rc_cc ]
+if (len(stale) > 0):
+    print
+    print "Stale documentation:"
+    for s in sorted(stale):
+        print "\t%s" %(s)
+
diff --git a/contrib/python/compare_records_config.py b/contrib/python/compare_records_config.py
new file mode 100644
index 00000000..a8283a38
--- /dev/null
+++ b/contrib/python/compare_records_config.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Compares two records.config files, printing which items are different and
+# what the before/after values are.
+# Ignores FLOAT differences and @foo@ values from the source code defaults.
+import sys
+
+def parse_records_file(filename):
+    fh = open(filename)
+    settings = {}
+    for line in fh:
+        line = line.strip()
+        if line.startswith('CONFIG') or line.startswith('LOCAL'):
+            parts = line.split()
+            if parts[2] == 'FLOAT':
+                parts[3] = parts[3].rstrip('0')
+            if parts[2] == 'INT' and parts[3][-1] in 'KMG':
+                unit = parts[3][-1]
+                val = parts[3][:-1]
+                if unit == 'K':
+                    val = int(val) * 1024
+                if unit == 'M':
+                    val = int(val) * 1048576
+                if unit == 'G':
+                    val = int(val) * 1073741824
+                parts[3] = str(val)
+            try:
+                settings[parts[1]] = parts[3]
+            except IndexError:
+                sys.stderr.write("Skipping malformed line: %s\n" % line)
+                continue
+    return settings
+
+def compare_settings(old, new):
+    for key in sorted(tuple(set(old) | set(new))):
+        if key not in old:
+            old[key] = "missing"
+        if key not in new:
+            new[key] = "missing"
+
+    for key in sorted(old):
+        if old[key].startswith('@') and old[key].endswith('@'):
+            # Skip predefined values
+            continue
+        if old[key] != new[key]:
+            print "%s %s -> %s" % (key, old[key], new[key])
+
+if __name__ == '__main__':
+    settings_orig = parse_records_file(sys.argv[1])
+    settings_new = parse_records_file(sys.argv[2])
+    compare_settings(settings_orig, settings_new)
diff --git a/contrib/set_trafficserver.sh b/contrib/set_trafficserver.sh
new file mode 100644
index 00000000..3182858d
--- /dev/null
+++ b/contrib/set_trafficserver.sh
@@ -0,0 +1,100 @@
+#!/bin/bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Basic Dev base settings script.
+# Desc: This script is meant for EC2 'like' Instances, however it works
+#       perfectly for non-ec2 installs.  This script is intended as a guide and
+#       makes use of many of the default settings for Apache Traffic Server.
+#       There are a few comments which offer help for performance, please
+#       read them.
+# Author: Jason Giedymin
+# Version Information:
+#	v1.0.0   - Initial Release
+#	v1.0.1   - thread limit set to 1
+#	v1.0.2   - VM specific settings, getting ready for auto benchmarking.
+#       v1.0.3   - Check to force /mnt based cache.db
+
+REMAP_FILE=/usr/local/etc/trafficserver/remap.config
+STORAGE_FILE=/usr/local/etc/trafficserver/storage.config
+EC2_CACHE_LOC=/mnt/trafficserver_cache
+
+# Base settings to use for testing and benchmarking
+function recordsConfig() {
+    startServer
+
+	traffic_line -s proxy.config.reverse_proxy.enabled -v 1
+	traffic_line -s proxy.config.exec_thread.autoconfig -v 1
+
+    # Good default on a dedicated box or SMP VM.
+    #traffic_line -s proxy.config.exec_thread.autoconfig.scale -v 3.000000
+
+    # Good for a VM.
+    traffic_line -s proxy.config.exec_thread.autoconfig.scale -v 1.000000
+
+	traffic_line -s proxy.config.accept_threads -v 1
+    traffic_line -s proxy.config.log.logging_enabled -v 0
+    traffic_line -s proxy.config.http.server_port -v 8080
+    traffic_line -s proxy.config.url_remap.pristine_host_hdr -v 1
+
+    # Good for a VM.
+    traffic_line -s proxy.config.exec_thread.limit -v 1
+
+    # Good default on a dedicated box or SMP VM.
+    traffic_line -s proxy.config.exec_thread.limit -v 2
+}
+
+function sampleRemap() {
+    echo "Modifying $REMAP_FILE ..."
+
+    #This is purely for testing.  Please supply your own ports and hosts.
+    echo "map http://localhost:8080    http://localhost:80" >> $REMAP_FILE
+    echo "map https://localhost:8443    http://localhost:443" >> $REMAP_FILE
+}
+
+function ec2Cache() {
+    echo "Modifying $STORAGE_FILE ..."
+
+    if [ ! -d $EC2_CACHE_LOC ]; then
+        echo "Creating $EC2_CACHE_LOC and Chown-ing $STORAGE_FILE"
+        mkdir -p $EC2_CACHE_LOC
+        chown nobody:nobody $STORAGE_FILE
+    fi
+
+    sed -i 's/.\/var\/trafficserver 150994944/\/mnt\/trafficserver_cache 1073741824/g' $STORAGE_FILE
+}
+
+function startServer() {
+    # If installed with the install script, use the init.d file created
+    if [ -x /etc/init.d/trafficserver ]; then
+        echo "Starting by forcing a restart of Apache TrafficServer..."
+        /etc/init.d/trafficserver restart
+        sleep 3
+    fi
+}
+
+function start() {
+	echo "Modifying configs..."
+
+    sampleRemap
+    ec2Cache
+
+	recordsConfig
+
+	echo "Complete."
+}
+
+start
diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
new file mode 100644
index 00000000..28f66458
--- /dev/null
+++ b/doc/Doxyfile.in
@@ -0,0 +1,1283 @@
+# Doxyfile 1.5.2
+# @configure_input@
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project
+#
+# All text after a hash (#) is considered a comment and will be ignored
+# The format is:
+#       TAG = value [value, ...]
+# For lists items can also be appended using:
+#       TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (" ")
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file that 
+# follow. The default is UTF-8 which is also the encoding used for all text before 
+# the first occurrence of this tag. Doxygen uses libiconv (or the iconv built into 
+# libc) for the transcoding. See http://www.gnu.org/software/libiconv for the list of 
+# possible encodings.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded 
+# by quotes) that should identify the project.
+
+PROJECT_NAME           = @PACKAGE_NAME@
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. 
+# This could be handy for archiving the generated documentation or 
+# if some version control system is used.
+
+PROJECT_NUMBER         = @PACKAGE_VERSION@
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
+# base path where the generated documentation will be put. 
+# If a relative path is entered, it will be relative to the location 
+# where doxygen was started. If left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       = @abs_top_builddir@/doc
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
+# 4096 sub-directories (in 2 levels) under the output directory of each output 
+# format and will distribute the generated files over these directories. 
+# Enabling this option can be useful when feeding doxygen a huge amount of 
+# source files, where putting all generated files in the same directory would 
+# otherwise cause performance problems for the file system.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all 
+# documentation generated by doxygen is written. Doxygen will use this 
+# information to generate all constant output in the proper language. 
+# The default language is English, other supported languages are: 
+# Afrikaans, Arabic, Brazilian, Catalan, Chinese, Chinese-Traditional, 
+# Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, 
+# Italian, Japanese, Japanese-en (Japanese with English messages), Korean, 
+# Korean-en, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, 
+# Serbian, Slovak, Slovene, Spanish, Swedish, and Ukrainian.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
+# include brief member descriptions after the members that are listed in 
+# the file and class documentation (similar to JavaDoc). 
+# Set to NO to disable this.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend 
+# the brief description of a member or function before the detailed description. 
+# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the 
+# brief descriptions will be completely suppressed.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator 
+# that is used to form the text in various listings. Each string 
+# in this list, if found as the leading text of the brief description, will be 
+# stripped from the text and the result after processing the whole list, is 
+# used as the annotated text. Otherwise, the brief description is used as-is. 
+# If left blank, the following values are used ("$name" is automatically 
+# replaced with the name of the entity): "The $name class" "The $name widget" 
+# "The $name file" "is" "provides" "specifies" "contains" 
+# "represents" "a" "an" "the"
+
+ABBREVIATE_BRIEF       = "The $name class" \
+                         "The $name widget" \
+                         "The $name file" \
+                         is \
+                         provides \
+                         specifies \
+                         contains \
+                         represents \
+                         a \
+                         an \
+                         the
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then 
+# Doxygen will generate a detailed section even if there is only a brief 
+# description.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all 
+# inherited members of a class in the documentation of that class as if those 
+# members were ordinary class members. Constructors, destructors and assignment 
+# operators of the base classes will not be shown.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full 
+# path before files name in the file list and in the header files. If set 
+# to NO the shortest path that makes the file name unique will be used.
+
+FULL_PATH_NAMES        = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag 
+# can be used to strip a user-defined part of the path. Stripping is 
+# only done if one of the specified strings matches the left-hand part of 
+# the path. The tag can be used to show relative paths in the file list. 
+# If left blank the directory from which doxygen is run is used as the 
+# path to strip.
+
+STRIP_FROM_PATH        = 
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of 
+# the path mentioned in the documentation of a class, which tells 
+# the reader which header file to include in order to use a class. 
+# If left blank only the name of the header file containing the class 
+# definition is used. Otherwise one should specify the include paths that 
+# are normally passed to the compiler using the -I flag.
+
+STRIP_FROM_INC_PATH    = 
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter 
+# (but less readable) file names. This can be useful is your file systems 
+# doesn't support long names like on DOS, Mac, or CD-ROM.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen 
+# will interpret the first line (until the first dot) of a JavaDoc-style 
+# comment as the brief description. If set to NO, the JavaDoc 
+# comments will behave just like the Qt-style comments (thus requiring an 
+# explicit @brief command for a brief description.
+
+JAVADOC_AUTOBRIEF      = YES
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen 
+# treat a multi-line C++ special comment block (i.e. a block of //! or /// 
+# comments) as a brief description. This used to be the default behaviour. 
+# The new default is to treat a multi-line C++ comment block as a detailed 
+# description. Set this tag to YES if you prefer the old behaviour instead.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the DETAILS_AT_TOP tag is set to YES then Doxygen 
+# will output the detailed description near the top, like JavaDoc.
+# If set to NO, the detailed description appears after the member 
+# documentation.
+
+DETAILS_AT_TOP         = NO
+
+# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented 
+# member inherits the documentation from any documented member that it 
+# re-implements.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce 
+# a new page for each member. If set to NO, the documentation of a member will 
+# be part of the file/class/namespace that contains it.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. 
+# Doxygen uses this value to replace tabs by spaces in code fragments.
+
+TAB_SIZE               = 8
+
+# This tag can be used to specify a number of aliases that acts 
+# as commands in the documentation. An alias has the form "name=value". 
+# For example adding "sideeffect=\par Side Effects:\n" will allow you to 
+# put the command \sideeffect (or @sideeffect) in the documentation, which 
+# will result in a user-defined paragraph with heading "Side Effects:". 
+# You can put \n's in the value part of an alias to insert newlines.
+
+ALIASES                = 
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C 
+# sources only. Doxygen will then generate output that is more tailored for C. 
+# For instance, some of the names that are used will be different. The list 
+# of all members will be omitted, etc.
+
+OPTIMIZE_OUTPUT_FOR_C  = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java 
+# sources only. Doxygen will then generate output that is more tailored for Java. 
+# For instance, namespaces will be presented as packages, qualified scopes 
+# will look different, etc.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to 
+# include (a tag file for) the STL sources as input, then you should 
+# set this tag to YES in order to let doxygen match functions declarations and 
+# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. 
+# func(std::string) {}). This also make the inheritance and collaboration 
+# diagrams that involve STL classes more complete and accurate.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+
+CPP_CLI_SUPPORT        = NO
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC 
+# tag is set to YES, then doxygen will reuse the documentation of the first 
+# member in the group (if any) for the other members of the group. By default 
+# all members of a group must be documented explicitly.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES (the default) to allow class member groups of 
+# the same type (for instance a group of public functions) to be put as a 
+# subgroup of that type (e.g. under the Public Functions section). Set it to 
+# NO to prevent subgrouping. Alternatively, this can be done per class using 
+# the \nosubgrouping command.
+
+SUBGROUPING            = YES
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in 
+# documentation are documented, even if no documentation was available. 
+# Private class members and static file members will be hidden unless 
+# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class 
+# will be included in the documentation.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file 
+# will be included in the documentation.
+
+EXTRACT_STATIC         = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) 
+# defined locally in source files will be included in the documentation. 
+# If set to NO only classes defined in header files are included.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local 
+# methods, which are defined in the implementation section but not in 
+# the interface are included in the documentation. 
+# If set to NO (the default) only methods in the interface are included.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all 
+# undocumented members of documented classes, files or namespaces. 
+# If set to NO (the default) these members will be included in the 
+# various overviews, but no documentation section is generated. 
+# This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all 
+# undocumented classes that are normally visible in the class hierarchy. 
+# If set to NO (the default) these classes will be included in the various 
+# overviews. This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all 
+# friend (class|struct|union) declarations. 
+# If set to NO (the default) these declarations will be included in the 
+# documentation.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any 
+# documentation blocks found inside the body of a function. 
+# If set to NO (the default) these blocks will be appended to the 
+# function's detailed documentation block.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation 
+# that is typed after a \internal command is included. If the tag is set 
+# to NO (the default) then the documentation will be excluded. 
+# Set it to YES to include the internal documentation.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate 
+# file names in lower-case letters. If set to YES upper-case letters are also 
+# allowed. This is useful if you have classes or files whose names only differ 
+# in case and if your file system supports case sensitive file names. Windows 
+# and Mac users are advised to set this option to NO.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen 
+# will show members with their full class and namespace scopes in the 
+# documentation. If set to YES the scope will be hidden.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen 
+# will put a list of the files that are included by a file in the documentation 
+# of that file.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] 
+# is inserted in the documentation for inline members.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen 
+# will sort the (detailed) documentation of file and class members 
+# alphabetically by member name. If set to NO the members will appear in 
+# declaration order.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the 
+# brief documentation of file, namespace and class members alphabetically 
+# by member name. If set to NO (the default) the members will appear in 
+# declaration order.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be 
+# sorted by fully-qualified names, including namespaces. If set to 
+# NO (the default), the class list will be sorted only by class name, 
+# not including the namespace part. 
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the 
+# alphabetical list.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or 
+# disable (NO) the todo list. This list is created by putting \todo 
+# commands in the documentation.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or 
+# disable (NO) the test list. This list is created by putting \test 
+# commands in the documentation.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or 
+# disable (NO) the bug list. This list is created by putting \bug 
+# commands in the documentation.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or 
+# disable (NO) the deprecated list. This list is created by putting 
+# \deprecated commands in the documentation.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional 
+# documentation sections, marked by \if sectionname ... \endif.
+
+ENABLED_SECTIONS       = 
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines 
+# the initial value of a variable or define consists of for it to appear in 
+# the documentation. If the initializer consists of more lines than specified 
+# here it will be hidden. Use a value of 0 to hide initializers completely. 
+# The appearance of the initializer of individual variables and defines in the 
+# documentation can be controlled using \showinitializer or \hideinitializer 
+# command in the documentation regardless of this setting.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated 
+# at the bottom of the documentation of classes and structs. If set to YES the 
+# list will mention the files that were used to generate the documentation.
+
+SHOW_USED_FILES        = YES
+
+# If the sources in your project are distributed over multiple directories 
+# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy 
+# in the documentation. The default is NO.
+
+SHOW_DIRECTORIES       = NO
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that 
+# doxygen should invoke to get the current version for each file (typically from the 
+# version control system). Doxygen will invoke the program by executing (via 
+# popen()) the command <command> <input-file>, where <command> is the value of 
+# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file 
+# provided by doxygen. Whatever the program writes to standard output 
+# is used as the file version. See the manual for examples.
+
+FILE_VERSION_FILTER    = 
+
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated 
+# by doxygen. Possible values are YES and NO. If left blank NO is used.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are 
+# generated by doxygen. Possible values are YES and NO. If left blank 
+# NO is used.
+
+WARNINGS               = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings 
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will 
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for 
+# potential errors in the documentation, such as not documenting some 
+# parameters in a documented function, or documenting parameters that 
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be abled to get warnings for 
+# functions that are documented, but have no documentation for their parameters 
+# or return value. If set to NO (the default) doxygen will only warn about 
+# wrong or incomplete parameter documentation, but not about the absence of 
+# documentation.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that 
+# doxygen can produce. The string should contain the $file, $line, and $text 
+# tags, which will be replaced by the file and line number from which the 
+# warning originated and the warning text. Optionally the format may contain 
+# $version, which will be replaced by the version of the file (if it could 
+# be obtained via FILE_VERSION_FILTER)
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning 
+# and error messages should be written. If left blank the output is written 
+# to stderr.
+
+WARN_LOGFILE           = warn.log
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain 
+# documented source files. You may enter file names like "myfile.cpp" or 
+# directories like "/usr/src/myproject". Separate the files or directories 
+# with spaces.
+
+INPUT                  = @abs_top_srcdir@/doc/mainpage.doc \
+                         @abs_top_srcdir@/iocore \
+                         @abs_top_srcdir@/lib/ts \
+                         @abs_top_srcdir@/lib/tsconfig \
+                         @abs_top_srcdir@/lib/records \
+                         @abs_top_srcdir@/proxy \
+                         @abs_top_srcdir@/test
+
+# This tag can be used to specify the character encoding of the source files that 
+# doxygen parses. Internally doxygen uses the UTF-8 encoding, which is also the default 
+# input encoding. Doxygen uses libiconv (or the iconv built into libc) for the transcoding. 
+# See http://www.gnu.org/software/libiconv for the list of possible encodings.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the 
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
+# and *.h) to filter out the source-files in the directories. If left 
+# blank the following patterns are tested: 
+# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx 
+# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py
+
+FILE_PATTERNS          = *.c *.cc *.h *.i
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories 
+# should be searched for input files as well. Possible values are YES and NO. 
+# If left blank NO is used.
+
+RECURSIVE              = YES
+
+# The EXCLUDE tag can be used to specify files and/or directories that should 
+# excluded from the INPUT source files. This way you can easily exclude a 
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+
+EXCLUDE                = 
+
+# The EXCLUDE_SYMLINKS tag can be used select whether or not files or 
+# directories that are symbolic links (a Unix filesystem feature) are excluded 
+# from the input.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the 
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude 
+# certain files from those directories. Note that the wildcards are matched 
+# against the file with absolute path, so to exclude all test directories 
+# for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =  test_*.cc
+EXCLUDE_PATTERNS      +=  test_*.h
+EXCLUDE_PATTERNS      +=  test_*.i
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names 
+# (namespaces, classes, functions, etc.) that should be excluded from the output. 
+# The symbol name can be a fully qualified name, a word, or if the wildcard * is used, 
+# a substring. Examples: ANamespace, AClass, AClass::ANamespace, ANamespace::*Test
+
+EXCLUDE_SYMBOLS        = 
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or 
+# directories that contain example code fragments that are included (see 
+# the \include command).
+
+EXAMPLE_PATH           = 
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the 
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
+# and *.h) to filter out the source-files in the directories. If left 
+# blank all files are included.
+
+EXAMPLE_PATTERNS       = 
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be 
+# searched for input files to be used with the \include or \dontinclude 
+# commands irrespective of the value of the RECURSIVE tag. 
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or 
+# directories that contain image that are included in the documentation (see 
+# the \image command).
+
+IMAGE_PATH             = 
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should 
+# invoke to filter for each input file. Doxygen will invoke the filter program 
+# by executing (via popen()) the command <filter> <input-file>, where <filter> 
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an 
+# input file. Doxygen will then use the output that the filter program writes 
+# to standard output.  If FILTER_PATTERNS is specified, this tag will be 
+# ignored.
+
+INPUT_FILTER           = 
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern 
+# basis.  Doxygen will compare the file name with each pattern and apply the 
+# filter if there is a match.  The filters are a list of the form: 
+# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further 
+# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER 
+# is applied to all files.
+
+FILTER_PATTERNS        = 
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using 
+# INPUT_FILTER) will be used to filter the input files when producing source 
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES    = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will 
+# be generated. Documented entities will be cross-referenced with these sources. 
+# Note: To get rid of all source code in the generated output, make sure also 
+# VERBATIM_HEADERS is set to NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body 
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct 
+# doxygen to hide any special comment blocks from generated source code 
+# fragments. Normal C and C++ comments will always remain visible.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES (the default) 
+# then for each documented function all documented 
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = YES
+
+# If the REFERENCES_RELATION tag is set to YES (the default) 
+# then for each documented function all documented entities 
+# called/used by that function will be listed.
+
+REFERENCES_RELATION    = YES
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
+# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
+# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
+# link to the source code.  Otherwise they will link to the documentstion.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code 
+# will point to the HTML generated by the htags(1) tool instead of doxygen 
+# built-in source browser. The htags tool is part of GNU's global source 
+# tagging system (see http://www.gnu.org/software/global/global.html). You 
+# will need version 4.8.6 or higher.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen 
+# will generate a verbatim copy of the header file for each class for 
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index 
+# of all compounds will be generated. Enable this if the project 
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX     = YES
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then 
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns 
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all 
+# classes will be put under the same header in the alphabetical index. 
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that 
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX          = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will 
+# generate HTML output.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT            = api
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for 
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank 
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for 
+# each generated HTML page. If it is left blank doxygen will generate a 
+# standard header.
+
+HTML_HEADER            = 
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for 
+# each generated HTML page. If it is left blank doxygen will generate a 
+# standard footer.
+
+HTML_FOOTER            = 
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading 
+# style sheet that is used by each HTML page. It can be used to 
+# fine-tune the look of the HTML output. If the tag is left blank doxygen 
+# will generate a default style sheet. Note that doxygen will try to copy 
+# the style sheet file to the HTML output directory, so don't put your own 
+# stylesheet in the HTML output directory as well, or it will be erased!
+
+HTML_STYLESHEET        = 
+
+# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, 
+# files or namespaces will be aligned in HTML using tables. If set to 
+# NO a bullet list will be used.
+
+HTML_ALIGN_MEMBERS     = YES
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files 
+# will be generated that can be used as input for tools like the 
+# Microsoft HTML help workshop to generate a compressed HTML help file (.chm) 
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP      = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can 
+# be used to specify the file name of the resulting .chm file. You 
+# can add a path in front of the file if the result should not be 
+# written to the html output directory.
+
+HTML_TIMESTAMP         = NO
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each
+# generated HTML page will contain the date and time when the page
+# was generated. Setting this to NO can help when comparing the
+# output of multiple runs.
+
+CHM_FILE               = 
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can 
+# be used to specify the location (absolute path including file name) of 
+# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run 
+# the HTML help compiler on the generated index.hhp.
+
+HHC_LOCATION           = 
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag 
+# controls if a separate .chi index file is generated (YES) or that 
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI           = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag 
+# controls whether a binary table of contents is generated (YES) or a 
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members 
+# to the contents of the HTML help documentation and to the tree view.
+
+TOC_EXPAND             = NO
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index at 
+# top of each HTML page. The value NO (the default) enables the index and 
+# the value YES disables it.
+
+DISABLE_INDEX          = NO
+
+# This tag can be used to set the number of enum values (range [1..20]) 
+# that doxygen will group on one line in the generated HTML documentation.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
+# generated containing a tree-like index structure (just like the one that 
+# is generated for HTML Help). For this to work a browser that supports 
+# JavaScript, DHTML, CSS and frames is required (for instance Mozilla 1.0+, 
+# Netscape 6.0+, Internet explorer 5.0+, or Konqueror). Windows users are 
+# probably better off using the HTML help feature.
+
+GENERATE_TREEVIEW      = NO
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be 
+# used to set the initial width (in pixels) of the frame in which the tree 
+# is shown.
+
+TREEVIEW_WIDTH         = 250
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will 
+# generate Latex output.
+
+GENERATE_LATEX         = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be 
+# invoked. If left blank `latex' will be used as the default command name.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to 
+# generate index for LaTeX. If left blank `makeindex' will be used as the 
+# default command name.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact 
+# LaTeX documents. This may be useful for small projects and may help to 
+# save some trees in general.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used 
+# by the printer. Possible values are: a4, a4wide, letter, legal and 
+# executive. If left blank a4wide will be used.
+
+PAPER_TYPE             = letter
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX 
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES         = 
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for 
+# the generated latex document. The header should contain everything until 
+# the first chapter. If it is left blank doxygen will generate a 
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER           = 
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated 
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will 
+# contain links (just like the HTML output) instead of page references 
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS         = YES
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of 
+# plain latex in the generated Makefile. Set this option to YES to get a 
+# higher quality PDF documentation.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. 
+# command to the generated LaTeX files. This will instruct LaTeX to keep 
+# running if errors occur, instead of asking the user for help. 
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE        = NO
+
+# If LATEX_HIDE_INDICES is set to YES then doxygen will not 
+# include the index chapters (such as File Index, Compound Index, etc.) 
+# in the output.
+
+LATEX_HIDE_INDICES     = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output 
+# The RTF output is optimized for Word 97 and may not look very pretty with 
+# other RTF readers or editors.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact 
+# RTF documents. This may be useful for small projects and may help to 
+# save some trees in general.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated 
+# will contain hyperlink fields. The RTF file will 
+# contain links (just like the HTML output) instead of page references. 
+# This makes the output suitable for online browsing using WORD or other 
+# programs which support those fields. 
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's 
+# config file, i.e. a series of assignments. You only have to provide 
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE    = 
+
+# Set optional variables used in the generation of an rtf document. 
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE    = 
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will 
+# generate man pages
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to 
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output, 
+# then it will generate one additional man file for each entity 
+# documented in the real man page(s). These additional files 
+# only source the real man page, but without them the man command 
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will 
+# generate an XML file that captures the structure of 
+# the code including all documentation.
+
+GENERATE_XML           = YES
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. 
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be 
+# put in front of it. If left blank `xml' will be used as the default path.
+
+XML_OUTPUT             = source/doxygen_xml_api
+
+# The XML_SCHEMA tag can be used to specify an XML schema, 
+# which can be used by a validating XML parser to check the 
+# syntax of the XML files.
+
+XML_SCHEMA             = 
+
+# The XML_DTD tag can be used to specify an XML DTD, 
+# which can be used by a validating XML parser to check the 
+# syntax of the XML files.
+
+XML_DTD                = 
+
+# If the XML_PROGRAMLISTING tag is set to YES Doxygen will 
+# dump the program listings (including syntax highlighting 
+# and cross-referencing information) to the XML output. Note that 
+# enabling this will significantly increase the size of the XML output.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will 
+# generate an AutoGen Definitions (see autogen.sf.net) file 
+# that captures the structure of the code including all 
+# documentation. Note that this feature is still experimental 
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will 
+# generate a Perl module file that captures the structure of 
+# the code including all documentation. Note that this 
+# feature is still experimental and incomplete at the 
+# moment.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate 
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able 
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be 
+# nicely formatted so it can be parsed by a human reader.  This is useful 
+# if you want to understand what is going on.  On the other hand, if this 
+# tag is set to NO the size of the Perl module output will be much smaller 
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file 
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. 
+# This is useful so different doxyrules.make files included by the same 
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX = 
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will 
+# evaluate all C-preprocessor directives found in the sources and include 
+# files.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro 
+# names in the source code. If set to NO (the default) only conditional 
+# compilation will be performed. Macro expansion can be done in a controlled 
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES 
+# then the macro expansion is limited to the macros specified with the 
+# PREDEFINED and EXPAND_AS_DEFINED tags.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files 
+# in the INCLUDE_PATH (see below) will be search if a #include is found.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that 
+# contain include files that are not input files but should be processed by 
+# the preprocessor.
+
+INCLUDE_PATH           = 
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard 
+# patterns (like *.h and *.hpp) to filter out the header-files in the 
+# directories. If left blank, the patterns specified with FILE_PATTERNS will 
+# be used.
+
+INCLUDE_FILE_PATTERNS  = 
+
+# The PREDEFINED tag can be used to specify one or more macro names that 
+# are defined before the preprocessor is started (similar to the -D option of 
+# gcc). The argument of the tag is a list of macros of the form: name 
+# or name=definition (no spaces). If the definition and the = are 
+# omitted =1 is assumed. To prevent a macro definition from being 
+# undefined via #undef or recursively expanded use the := operator 
+# instead of the = operator.
+
+PREDEFINED             = 
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then 
+# this tag can be used to specify a list of macro names that should be expanded. 
+# The macro definition that is found in the sources will be used. 
+# Use the PREDEFINED tag if you want to use a different macro definition.
+
+EXPAND_AS_DEFINED      = 
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then 
+# doxygen's preprocessor will remove all function-like macros that are alone 
+# on a line, have an all uppercase name, and do not end with a semicolon. Such 
+# function macros are typically used for boiler-plate code, and will confuse 
+# the parser if not removed.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references   
+#---------------------------------------------------------------------------
+
+# The TAGFILES option can be used to specify one or more tagfiles. 
+# Optionally an initial location of the external documentation 
+# can be added for each tagfile. The format of a tag file without 
+# this location is as follows: 
+#   TAGFILES = file1 file2 ... 
+# Adding location for the tag files is done as follows: 
+#   TAGFILES = file1=loc1 "file2 = loc2" ... 
+# where "loc1" and "loc2" can be relative or absolute paths or 
+# URLs. If a location is present for each tag, the installdox tool 
+# does not have to be run to correct the links.
+# Note that each tag file must have a unique name
+# (where the name does NOT include the path)
+# If a tag file is not located in the directory in which doxygen 
+# is run, you must also specify the path to the tagfile here.
+
+TAGFILES               = 
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create 
+# a tag file that is based on the input files it reads.
+
+GENERATE_TAGFILE       = 
+
+# If the ALLEXTERNALS tag is set to YES all external classes will be listed 
+# in the class index. If set to NO only the inherited external classes 
+# will be listed.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed 
+# in the modules index. If set to NO, only the current project's groups will 
+# be listed.
+
+EXTERNAL_GROUPS        = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script 
+# interpreter (i.e. the result of `which perl').
+
+PERL_PATH              = @PERL@
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will 
+# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base 
+# or super classes. Setting the tag to NO turns the diagrams off. Note that 
+# this option is superseded by the HAVE_DOT option below. This is only a 
+# fallback. It is recommended to install and use dot, since it yields more 
+# powerful graphs.
+
+CLASS_DIAGRAMS         = NO
+
+# You can define message sequence charts within doxygen comments using the \msc 
+# command. Doxygen will then run the mscgen tool (see http://www.mcternan.me.uk/mscgen/) to 
+# produce the chart and insert it in the documentation. The MSCGEN_PATH tag allows you to 
+# specify the directory where the mscgen tool resides. If left empty the tool is assumed to 
+# be found in the default search path.
+
+MSCGEN_PATH            = 
+
+# If set to YES, the inheritance and collaboration graphs will hide 
+# inheritance and usage relations if the target is undocumented 
+# or is not a class.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is 
+# available from the path. This tool is part of Graphviz, a graph visualization 
+# toolkit from AT&T and Lucent Bell Labs. The other options in this section 
+# have no effect if this option is set to NO (the default)
+
+HAVE_DOT               = YES
+
+# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for each documented class showing the direct and 
+# indirect inheritance relations. Setting this tag to YES will force the 
+# the CLASS_DIAGRAMS tag to NO.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for each documented class showing the direct and 
+# indirect implementation dependencies (inheritance, containment, and 
+# class references variables) of the class with other documented classes.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen 
+# will generate a graph for groups, showing the direct groups dependencies
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and 
+# collaboration diagrams in a style similar to the OMG's Unified Modeling 
+# Language.
+
+UML_LOOK               = NO
+
+# If set to YES, the inheritance and collaboration graphs will show the 
+# relations between templates and their instances.
+
+TEMPLATE_RELATIONS     = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT 
+# tags are set to YES then doxygen will generate a graph for each documented 
+# file showing the direct and indirect include dependencies of the file with 
+# other documented files.
+
+INCLUDE_GRAPH          = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and 
+# HAVE_DOT tags are set to YES then doxygen will generate a graph for each 
+# documented header file showing the documented files that directly or 
+# indirectly include this file.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
+# generate a call dependency graph for every global function or class method. 
+# Note that enabling this option will significantly increase the time of a run. 
+# So in most cases it will be better to enable call graphs for selected 
+# functions only using the \callgraph command.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then doxygen will 
+# generate a caller dependency graph for every global function or class method. 
+# Note that enabling this option will significantly increase the time of a run. 
+# So in most cases it will be better to enable caller graphs for selected 
+# functions only using the \callergraph command.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen 
+# will graphical hierarchy of all classes instead of a textual one.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES 
+# then doxygen will show the dependencies a directory has on other directories 
+# in a graphical way. The dependency relations are determined by the #include
+# relations between the files in the directories.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images 
+# generated by dot. Possible values are png, jpg, or gif
+# If left blank png will be used.
+
+DOT_IMAGE_FORMAT       = png
+
+# The tag DOT_PATH can be used to specify the path where the dot tool can be 
+# found. If left blank, it is assumed the dot tool can be found in the path.
+
+DOT_PATH               = 
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that 
+# contain dot files that are included in the documentation (see the 
+# \dotfile command).
+
+DOTFILE_DIRS           = @abs_top_srcdir@/doc/dot
+
+# The MAX_DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of 
+# nodes that will be shown in the graph. If the number of nodes in a graph 
+# becomes larger than this value, doxygen will truncate the graph, which is 
+# visualized by representing a node as a red box. Note that doxygen will always 
+# show the root nodes and its direct children regardless of this setting.
+
+DOT_GRAPH_MAX_NODES    = 100
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent 
+# background. This is disabled by default, which results in a white background. 
+# Warning: Depending on the platform used, enabling this option may lead to 
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to 
+# read).
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output 
+# files in one run (i.e. multiple -o and -T options on the command line). This 
+# makes dot run faster, but since only newer versions of dot (>1.8.10) 
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS      = YES
+
+# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will 
+# generate a legend page explaining the meaning of the various boxes and 
+# arrows in the dot generated graphs.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will 
+# remove the intermediate dot files that are used to generate 
+# the various graphs.
+
+DOT_CLEANUP            = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to the search engine   
+#---------------------------------------------------------------------------
+
+# The SEARCHENGINE tag specifies whether or not a search engine should be 
+# used. If set to NO the values of all tags below this one will be ignored.
+
+SEARCHENGINE           = NO
diff --git a/doc/Makefile.am b/doc/Makefile.am
new file mode 100644
index 00000000..966d6018
--- /dev/null
+++ b/doc/Makefile.am
@@ -0,0 +1,147 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+trafficshelldir = $(pkgdocdir)/trafficshell
+
+.PHONY: help dirhtml singlehtml epub latex man changes linkcheck doxygen
+
+dist_trafficshell_DATA = \
+  man/show_alarms.1 \
+  man/show_cache.1 \
+  man/show_cache-stats.1 \
+  man/show_cluster.1 \
+  man/show_dns-resolver.1 \
+  man/show_dns-stats.1 \
+  man/show_hostdb.1 \
+  man/show_hostdb-stats.1 \
+  man/show_http.1 \
+  man/show_http-stats.1 \
+  man/show_http-trans-stats.1 \
+  man/show_icp.1 \
+  man/show_icp-stats.1 \
+  man/show_logging.1 \
+  man/show_logging-stats.1 \
+  man/show_network.1 \
+  man/show_parent.1 \
+  man/show_port-tunnels.1 \
+  man/show_proxy.1 \
+  man/show_proxy-stats.1 \
+  man/show_remap.1 \
+  man/show_scheduled-update.1 \
+  man/show_security.1 \
+  man/show_socks.1 \
+  man/show_ssl.1 \
+  man/show_status.1 \
+  man/show_version.1 \
+  man/show_virtual-ip.1
+
+if BUILD_MANPAGES
+
+man1_MANS = $(TS_MAN1_MANPAGES)
+man3_MANS = $(TS_MAN3_MANPAGES)
+man5_MANS = $(TS_MAN5_MANPAGES)
+man8_MANS = $(TS_MAN8_MANPAGES)
+
+$(man1_MANS) $(man3_MANS) $(man5_MANS) $(man8_MANS): man
+
+# Hook the 'all' target so that the man pages get generated in the "all" target, prior
+# to "make install". If we leave it to "make install" time, then the man pages are likely
+# to me generated as root.
+all-am: $(man1_MANS) $(man3_MANS) $(man5_MANS) $(man8_MANS)
+
+endif
+
+EXTRA_DIST = \
+  Doxyfile.in \
+  $(dist_trafficshell_DATA)
+
+clean-local:
+	-rm -rf html warn.log
+	-rm -rf $(BUILDDIR)/doctrees $(BUILDDIR)/html $(BUILDDIR)/dirhtml $(BUILDDIR)/singlehtml $(BUILDDIR)/epub $(BUILDDIR)/latex $(BUILDDIR)/man
+
+doxygen: Doxyfile
+	$(DOXYGEN)
+
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+PAPER         = letter
+BUILDDIR      = docbuild
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = $(SPHINXOPTS)
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(SPHINXOPTS)
+
+# The PAPER setting variables requires recursive make variable expansion, which automake
+# detects as non-portable. We bounce this through a shell script and do the expansion there.
+SBUILD = PAPEROPT_a4="$(PAPEROPT_a4)" PAPEROPT_letter="$(PAPEROPT_letter)" PAPER="$(PAPER)" \
+	 $(srcdir)/sbuild $(SPHINXBUILD) \
+	 -D version=$(TS_VERSION_STRING) \
+	 -D release=$(TS_VERSION_STRING) \
+	 -c $(srcdir) \
+	 $(ALLSPHINXOPTS)
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  man        to make manual pages"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  linkcheck  to check all external links for integrity"
+
+html-local:
+	$(SBUILD) -d $(BUILDDIR)/doctrees -b html $(srcdir) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SBUILD) -d $(BUILDDIR)/doctrees -b dirhtml $(srcdir) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SBUILD) -d $(BUILDDIR)/doctrees -b singlehtml $(srcdir) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+epub:
+	$(SBUILD) -d $(BUILDDIR)/doctrees -b epub $(srcdir) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SBUILD) -d $(BUILDDIR)/doctrees -b latex $(srcdir) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/latex."
+
+man:
+	$(SBUILD) -d $(BUILDDIR)/doctrees -b man $(srcdir) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The man pages are in $(BUILDDIR)/man."
+
+changes:
+	@echo FIXME
+
+linkcheck:
+	@echo FIXME
diff --git a/doc/Makefile.in b/doc/Makefile.in
new file mode 100644
index 00000000..c7a4e53b
--- /dev/null
+++ b/doc/Makefile.in
@@ -0,0 +1,1048 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
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diff --git a/doc/admin/cluster-howto.en.rst b/doc/admin/cluster-howto.en.rst
new file mode 100644
index 00000000..584b8dd4
--- /dev/null
+++ b/doc/admin/cluster-howto.en.rst
@@ -0,0 +1,168 @@
+.. _traffic-server-cluster:
+
+Traffic Server Cluster
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+
+Traffic Server scales from a single node to multiple nodes that form a
+cluster allowing you to improve system performance and reliability.
+
+.. toctree::
+   :maxdepth: 1
+
+Understanding Traffic Server Clusters
+=====================================
+
+A Traffic Server cluster consists of multiple Traffic Server nodes. The
+nodes in a cluster share configuration information and can form a single
+logical cache. Traffic Server detects the addition and deletion of nodes
+in the cluster automatically and can detect when a node is unavailable.
+Traffic Server uses its own protocol for clustering, which is multicast
+for node location and heartbeat, but unicast for all data exchange
+within the cluster. Traffic Server has two clustering modes:
+
+-  Management-only mode; refer to `Management-Only Clustering`_ below.
+-  Full-clustering mode; refer to `Full Clustering`_
+
+Management-Only Clustering
+==========================
+
+In management-only clustering mode, Traffic Server cluster nodes share
+configuration information. You can administer all the nodes at the same
+time. Traffic Server uses a multicast management protocol to provide a
+single system image of your Traffic Server cluster. Information about
+cluster membership, configuration, and exceptions is shared across all
+nodes, and the :program:`traffic_manager` process automatically propagates
+configuration changes to all the nodes.
+
+Full Clustering
+===============
+
+In full-clustering mode, as well as sharing configuration information, a
+Traffic Server cluster distributes its cache across its nodes into a
+single, virtual object store, rather than replicating the cache node by
+node. Traffic Server can provide an enormous aggregate cache size and
+can maximize cache hit rate by storing objects only once across the
+entire cluster.
+
+A fully clustered Traffic Server maps objects to specific nodes in the
+cluster. When a node receives a request, it checks to see if the request
+is a hit somewhere in the cluster. If the request is a hit on a
+different node, the node handling the request obtains the object from
+the hit node and serves it to the client. Traffic Server uses its own
+communication protocol to obtain an object from sibling cluster nodes.
+
+If a node fails or is shut down and removed, Traffic Server removes
+references to the missing node on all nodes in the cluster.
+
+Full clustering recommends a dedicated network interface for cluster
+communication to get better performance.
+
+Enabling Clustering Mode
+========================
+
+Before you put a node into a cluster, please make sure the following
+things are in order:
+
+-  You are using the same operation system on all nodes:
+
+   -  Using the same distribution, e.g.: RHEL 5.5
+   -  Have same kernel, e.g.: 2.6.18-194.17.1.el5
+   -  The same architecture, e.g.: ``x86_64``
+
+-  You have the same version of Traffic Server installed
+-  The same hardware
+-  On the same switch or same VLAN.
+
+Traffic Server does not apply the clustering mode change to all the
+nodes in the cluster. You must change the clustering mode on each node
+individually. You may following these instructions:
+
+1. Setup the same cluster name, with :ts:cv:`proxy.config.proxy_name`, e.g. MyCluster.
+
+2. Set :ts:cv:`proxy.local.cluster.type` to ``1``, to enable cluster mode. The
+   following values of this configuration are valid
+
+================= ==================================================
+Value             Description
+================= ==================================================
+1                 full-clustering mode
+2                 management-only mode
+3                 no clustering (*default*)
+================= ==================================================
+
+3. Setup a :ts:cv:`proxy.config.cluster.ethernet_interface`, e.g.: ``eth0``.
+   This should be replaced by your real interface; we recommends a
+   dedicated interface here. Refer to :ts:cv:`proxy.local.cluster.type` for a full description.
+
+4. Enable configuration changes::
+
+       traffic_line -x
+
+5. Restart traffic server::
+
+       traffic_line -L
+
+   The :program:`traffic_server` and :program:`traffic_manager` processes will need to
+   restart after the change of :ts:cv:`proxy.local.cluster.type` and
+   :ts:cv:`proxy.config.cluster.ethernet_interface` have taken place.
+
+Traffic Server will join the cluster in about 10 seconds, and you can
+run :option:`traffic_line -r` `proxy.process.cluster.nodes` to check the hosts
+in the cluster, or check out the ``cluster.config`` in the configuration
+directory. This configuration is generated by the system, and should not be
+edited. It contains a list of the machines that are currently members of the
+cluster, for example::
+
+    # 3
+    127.1.2.3:80
+    127.1.2.4:80
+    127.1.2.5:80
+
+After successfully joining of a cluster, all changes of global
+configurations on any node, will take effect on **all** nodes. This means you
+can make changes on any cluster node member, and they are automatically
+distributed to all members.
+
+Deleting Nodes from a Cluster
+=============================
+
+To delete a node from the Traffic Server cluster, just roll back
+:ts:cv:`proxy.local.cluster.type` to the default value 3 and reload.
+
+Performance tweak for busy Cluster
+==================================
+
+Starting from v3.2.0, Apache Traffic Server can handle multiple internal
+cluster connections, and we can tweak the number of Cluster threads. Each
+of the thread will keep one connection to all of peering cluster machines.
+
+Increasing Cluster threads
+--------------------------
+
+In the cluster environment, the current performance of the cluster threads
+will consume the same cpu usage as a normal network thread. It's reasonable
+to keep roughly the same number of cluster threads as network threads. For
+example, if you are running a system with 10 network processing threads,
+you can set the number of cluster threads by modifying
+:ts:cv:`proxy.config.cluster.threads` to ``10``.  E.g.::
+
+    traffic_line -s proxy.config.cluster.threads -v 10
diff --git a/doc/admin/configuring-cache.en.rst b/doc/admin/configuring-cache.en.rst
new file mode 100644
index 00000000..4df5bc04
--- /dev/null
+++ b/doc/admin/configuring-cache.en.rst
@@ -0,0 +1,389 @@
+.. _configuring-the-cache:
+
+Configuring the Cache
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+     with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+The Traffic Server cache consists of a high-speed object database called
+the **object store** that indexes objects according to URLs and their
+associated headers.
+
+.. toctree::
+   :maxdepth: 2
+
+The Traffic Server Cache
+========================
+
+The Traffic Server cache consists of a high-speed object database called
+the **object store**. The object store indexes objects according to URLs
+and associated headers. This enables Traffic Server to store, retrieve,
+and serve not only web pages, but also parts of web pages - which
+provides optimum bandwidth savings. Using sophisticated object
+management, the object store can cache alternate versions of the same
+object (versions may differ because of dissimilar language or encoding
+types). It can also efficiently store very small and very large
+documents, thereby minimizing wasted space. When the cache is full,
+Traffic Server removes stale data to ensure the most requested objects
+are kept readily available and fresh.
+
+Traffic Server is designed to tolerate total disk failures on any of the
+cache disks. If the disk fails completely, then Traffic Server marks the
+entire disk as corrupt and continues using the remaining disks. An alarm
+is then created to indicate which disk failed. If all of the cache disks
+fail, then Traffic Server goes into proxy-only mode.
+
+You can perform the following cache configuration tasks:
+
+-  Change the total amount of disk space allocated to the cache: refer
+   to `Changing Cache Capacity`_.
+-  Partition the cache by reserving cache disk space for specific
+   protocols and origin servers/domains: refer to `Partitioning the Cache`_.
+-  Delete all data in the cache: refer to `Clearing the Cache`_.
+-  Override cache directives for a requested domain name, regex on a url,
+   hostname or ip, with extra filters for time, port, method of the request
+   (and more). ATS can be configured to never cache; always cache; 
+   ignore no-cache directives, etc. These are configured in :file:`cache.config`.
+
+The RAM Cache
+=============
+
+Traffic Server maintains a small RAM cache of extremely popular objects.
+This RAM cache serves the most popular objects as quickly as possible
+and reduces load on disks, especially during temporary traffic peaks.
+You can configure the RAM cache size to suit your needs, as described in
+:ref:`changing-the-size-of-the-ram-cache` below.
+
+The RAM cache supports two cache eviction algorithms, a regular **LRU**
+(*Least Recently Used*) and the more advanced **CLFUS** (*Clocked Least
+Frequently Used by Size*, which balances recentness, frequency and size
+to maximize hit rate -- similar to a most frequently used algorithm). 
+The default is to use **CLFUS**, and this is controlled via 
+:ts:cv:`proxy.config.cache.ram_cache.algorithm`.
+
+Both the **LRU** and **CLFUS** RAM caches support a configuration to increase
+scan resistance. In a typical **LRU**, if you request all possible objects in
+sequence, you will effectively churn the cache on every request. The option
+:ts:cv:`proxy.config.cache.ram_cache.use_seen_filter` can be set to add some
+resistance against this problem.
+
+In addition, **CLFUS** also supports compressing in the RAM cache itself.
+This can be useful for content which is not compressed by itself (e.g.
+images). This should not be confused with *Content-Encoding: gzip*, this
+feature is only thereto save space internally in the RAM cache itself. As
+such, it is completely transparent to the User-Agent. The RAM cache
+compression is enabled with the option
+:ts:cv:`proxy.config.cache.ram_cache.compress`. The default is 0, which means
+no compression. Other possible values are 1 for **fastlz**, 2 for **libz** and
+3 for **liblzma**.
+
+
+.. _changing-the-size-of-the-ram-cache:
+
+Changing the Size of the RAM Cache
+==================================
+
+Traffic Server provides a dedicated RAM cache for fast retrieval of
+popular small objects. The default RAM cache size is automatically
+calculated based on the number and size of the cache partitions you have
+configured. If you've partitioned your cache according to protocol
+and/or hosts, then the size of the RAM cache for each partition is
+proportional to the size of that partition.
+
+You can increase the RAM cache size for better cache hit performance.
+However, if you increase the size of the RAM cache and observe a
+decrease in performance (such as increased latencies), then it's
+possible that the operating system requires more memory for network
+resources. In such instances, you should return the RAM cache size to
+its previous value.
+
+To change the RAM cache size:
+
+1. Stop Traffic Server.
+2. Set the variable :ts:cv:`proxy.config.cache.ram_cache.size`
+   to specify the size of the RAM cache. The default value of -1 means
+   that the RAM cache is automatically sized at approximately 1MB per
+   gigabyte of disk.
+3. Restart Traffic Server. If you increase the RAM cache to a size of
+   1GB or more, then restart with the :program:`trafficserver` command
+   (refer to :ref:`start-traffic-server`).
+
+ 
+
+Changing Cache Capacity
+=======================
+
+You can increase or reduce the total amount of disk space allocated to
+the cache without clearing the content. To check the size of the cache
+(in bytes), enter the command :option:`traffic_line -r` ``proxy.process.cache.bytes_total``.
+
+Increasing Cache Capacity
+-------------------------
+
+To increase the total amount of disk space allocated to the cache on
+existing disks or to add new disks to a Traffic Server node, follow the
+steps below:
+
+1. Stop Traffic Server.
+2. Add hardware, if necessary.
+3. Edit :file:`storage.config` to increase the amount of disk space allocated
+   to the cache on existing disks or describe the new hardware you are adding.
+4. Restart Traffic Server.
+
+Reducing Cache Capacity
+-----------------------
+
+To reduce the total amount of disk space allocated to the cache on an
+existing disk or to remove disks from a Traffic Server node, follow the
+steps below:
+
+1. Stop Traffic Server.
+2. Remove hardware, if necessary.
+3. Edit :file:`storage.config` to reduce the amount of disk space allocated
+   to the cache on existing disks or delete the reference to the hardware you're removing.
+4. Restart Traffic Server.
+
+.. important:: In :file:`storage.config`, a formatted or raw disk must be at least 128 MB.
+
+.. _partitioning-the-cache:
+
+Partitioning the Cache
+======================
+
+You can manage your cache space more efficiently and restrict disk usage
+by creating cache volumes with different sizes for specific protocols.
+You can further configure these volumes to store data from specific
+origin servers and/or domains. The volume configuration must be the same
+on all nodes in a :ref:`cluster <traffic-server-cluster>`.
+
+Creating Cache Partitions for Specific Protocols
+------------------------------------------------
+
+You can create separate volumes for your cache that vary in size to
+store content according to protocol. This ensures that a certain amount
+of disk space is always available for a particular protocol. Traffic
+Server currently supports the **http** partition type for HTTP objects.
+
+.. XXX: but not https?
+
+To partition the cache according to protocol:
+
+1. Enter a line in the :file:`volume.config` file for
+   each volume you want to create
+2. Restart Traffic Server.
+
+Making Changes to Partition Sizes and Protocols
+-----------------------------------------------
+
+After you've configured your cache volumes based on protocol, you can
+make changes to the configuration at any time. Before making changes,
+note the following:
+
+-  You must stop Traffic Server before you change the cache volume size
+   and protocol assignment.
+-  When you increase the size of a volume, the contents of the volume
+   are *not* deleted. However, when you reduce the size of a volume, the
+   contents of the volume *are* deleted.
+-  When you change the volume number, the volume is deleted and then
+   recreated, even if the size and protocol type remain the same.
+-  When you add new disks to your Traffic Server node, volume sizes
+   specified in percentages will increase proportionately.
+-  A lot of changes to volume sizes might result in disk fragmentation,
+   which affects performance and hit rate. You should clear the cache
+   before making many changes to cache volume sizes (refer to `Clearing the Cache`_).
+
+Partitioning the Cache According to Origin Server or Domain
+-----------------------------------------------------------
+
+After you have partitioned the cache according to size and protocol, you
+can assign the volumes you created to specific origin servers and/or
+domains. You can assign a volumes to a single origin server or to
+multiple origin servers. However, if a volumes is assigned to multiple
+origin servers, then there is no guarantee on the space available in the
+volumes for each origin server. Content is stored in the volumes
+according to popularity. In addition to assigning volumes to specific
+origin servers and domains, you must assign a generic volume to store
+content from all origin servers and domains that are not listed. This
+generic volume is also used if the partitions for a particular origin
+server or domain become corrupt. If you do not assign a generic volume,
+then Traffic Server will run in proxy-only mode.
+
+.. note::
+
+    You do *not* need to stop Traffic Server before you assign
+    volumes to particular hosts or domains. However, this type of
+    configuration is time-consuming and can cause a spike in memory usage.
+    Therefore, it's best to configure partition assignment during periods of
+    low traffic.
+
+To partition the cache according to hostname and domain:
+
+1. Configure the cache volumes according to size and protocol, as
+   described in `Creating Cache Partitions for Specific Protocols`_.
+2. Create a separate volume based on protocol for each host and domain,
+   as well as an additional generic partition to use for content that
+   does not belong to these origin servers or domains. The volumes do
+   not need to be the same size.
+3. Enter a line in the :file:`hosting.config` file to
+   allocate the volume(s) used for each origin server and/or domain
+4. Assign a generic volume to use for content that does not belong to
+   any of the origin servers or domains listed in the file. If all
+   volumes for a particular origin server become corrupt, then Traffic
+   Server will also use the generic volume to store content for that
+   origin server as per :file:`hosting.config`.
+5. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Configuring the Cache Object Size Limit
+=======================================
+
+By default, Traffic Server allows objects of any size to be cached. You
+can change the default behavior and specify a size limit for objects in
+the cache via the steps below:
+
+1. Set :ts:cv:`proxy.config.cache.max_doc_size`
+   to specify the maximum size allowed for objects in the cache in
+   bytes. ``0`` (zero) if you do not want a size limit.
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. _clearing-the-cache:
+
+Clearing the Cache
+==================
+
+When you clear the cache, you remove all data from the entire cache -
+including data in the host database. You should clear the cache before
+performing certain cache configuration tasks, such as partitioning. You
+cannot clear the cache when Traffic Server is running.
+
+To clear the cache:
+
+1. Stop Traffic Server (refer to :ref:`Stopping Traffic Server <stop-traffic-server>`)
+2. Enter the following command to clear the cache: ::
+
+        traffic_server -Cclear
+
+   The ``clear`` command deletes all data in the object store and the
+   host database. Traffic Server does not prompt you to confirm the
+   deletion.
+
+3. Restart Traffic Server (refer to :ref:`Starting Traffic Server <start-traffic-server>`).
+
+Removing an Object From the Cache
+=================================
+
+Traffic Server accepts the custom HTTP request method ``PURGE`` when
+removing a specific object from cache. If the object is found in the
+cache and is successfully removed, then Traffic Server responds with a
+``200 OK`` HTTP message; otherwise, a ``404 File Not Found`` message is
+returned.
+
+In the following example, Traffic Server is running on the domain
+``example.com`` and you want to remove the image ``remove_me.jpg``
+from cache. Because by default we do not permit ``PURGE`` requests from
+any other IP, we connect to the daemon via localhost: ::
+
+      $ curl -X PURGE -H 'Host: example.com' -v "http://localhost/remove_me.jpg"
+      * About to connect() to localhost port 80 (#0)
+      * Trying 127.0.0.1... connected
+      * Connected to localhost (127.0.0.1) port 80 (#0)
+
+      > PURGE /remove_me.jpg HTTP/1.1
+      > User-Agent: curl/7.19.7
+      > Host: example.com
+      > Accept: */*
+      >
+      < HTTP/1.1 200 Ok
+      < Date: Thu, 08 Jan 2010 20:32:07 GMT
+      < Connection: keep-alive
+
+The next time Traffic Server receives a request for the removed object,
+it will contact the origin server to retrieve it (i.e., it has been
+purged from the Traffic Server cache).
+
+Note: The procedure above only removes an object from a *specific*
+Traffic Server cache. Users may still see the old (removed) content if
+it was cached by intermediary caches or by the end-users' web browser.
+
+.. _inspecting-the-cache:
+
+Inspecting the Cache
+====================
+
+Traffic Server provides a Cache Inspector utility that enables you to
+view, delete, and invalidate URLs in the cache (HTTP only). The Cache
+Inspector utility is a powerful tool that's capable of deleting *all*
+the objects in your cache; therefore, make sure that only authorized
+administrators are allowed to access this utility, see :ref:`controlling-client-access-to-cache` and the ``@src_ip`` option in :file:`remap.config`.
+
+Accessing the Cache Inspector Utility
+-------------------------------------
+
+To access the Cache Inspector utility, follow the steps below:
+
+#. Set :ts:cv:`proxy.config.http_ui_enabled` to ``1``.
+#. To access the cache inspector in reverse proxy mode, you must add a
+   remap rule to :file:`remap.config` to expose the URL. This should be
+   restricted to a limited set of hosts using the ``@src_ip`` option.
+   To restrict access to the network 172.28.56.0/24, use ::
+
+      map http://yourhost.com/myCI/ http://{cache} @action=allow @src_ip=172.28.56.1-172.28.56.254
+
+#. From the Traffic Server ``bin`` directory, enter the following
+   command to re-read the configuration file: ``traffic_line -x``
+#. Open your web browser and configure it to use your Traffic Server as
+   a proxy server. Type the following URL::
+
+      http://yourhost/myCI/
+
+#. The Cache page opens.
+
+Using the Cache Page
+--------------------
+
+The **Cache page** provides several options that enable you to view and
+delete the contents of your cache:
+
+-  Click **Lookup url** to search for a particular URL in the cache.
+   When Traffic Server finds the URL in the cache, it displays details
+   about the object that corresponds to the URL (such as the header
+   length and the number of alternates). From the display page, you can
+   delete the URL from the cache.
+-  Click **Delete url** to delete a particular URL or list of URLs from
+   the cache. Traffic Server indicates if a delete is successful.
+-  Click **Regex lookup** to search for URLs that match one or more
+   regular expressions. From the display page, you can delete the URLs
+   listed. For example, enter the following to search for all URLs that
+   end in html and are prefixed with ``http://www.dianes.com``:
+   ``http://www.dianes.com/.*\.html$``
+-  Click **Regex delete** to delete all URLs that match a specified
+   regular expression. For example, enter the following to delete all
+   HTTP URLs that end in ``html``: ``http://.*\.html$``
+-  Click **Regex invalidate** to invalidate URLs that match a specified
+   regular expression. When you invalidate a URL, Traffic Server marks
+   the object that corresponds to the URL as stale in the cache. Traffic
+   Server then contacts the origin server to check if the object is
+   still fresh (revalidates) before serving it from the cache.
+
+.. note::
+
+    Only one administrator should delete and invalidate cache
+    entries from the Cache page at any point in time. Changes made by
+    multiple administrators at the same time can lead to unpredictable
+    results.
diff --git a/doc/admin/configuring-traffic-server.en.rst b/doc/admin/configuring-traffic-server.en.rst
new file mode 100644
index 00000000..a06eaea6
--- /dev/null
+++ b/doc/admin/configuring-traffic-server.en.rst
@@ -0,0 +1,83 @@
+
+.. _configuring-traffic-server:
+
+Configuring Traffic Server
+**************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Traffic Server provides several options for configuring the system.
+
+.. toctree::
+   :maxdepth: 2
+
+.. _configure-using-traffic-line:
+
+Configure Traffic Server Using Traffic Line
+===========================================
+
+Traffic Line enables you to quickly and easily change your Traffic
+Server configuration via command-line interface. Alternatively, you can
+also use :program:`traffic_shell` to configure Traffic Server.
+
+View Configuration Options in Traffic Line
+------------------------------------------
+
+To view a configuration setting, enter the following command::
+
+    traffic_line -r var
+
+where ``var`` is the variable associated with the configuration
+option. For a list of variables, refer to :ref:`configuration-variables`.
+
+Change Configuration Options in Traffic Line
+--------------------------------------------
+
+To change the value of a configuration setting, enter the following
+command::
+
+    traffic_line -s var -v value
+
+where ``var`` is the variable associated with the configuration option
+and ``value`` is the value you want to use. For a list of the
+variables, see :ref:`configuration-variables`.
+
+Configure Traffic Server Using Configuration Files
+==================================================
+
+As an alternative to using Traffic Line or Traffic Shell, you can change
+Traffic Server configuration options by manually editing specific
+variables in the :file:`records.config` file.
+After modifying the :file:`records.config`  file,
+Traffic Server must reread the configuration files: enter the Traffic
+Line command :option:`traffic_line -x`. You may need to restart Traffic Server
+to apply some of the configuration changes.
+
+The following is a sample portion of the
+:file:`records.config` file:
+
+.. figure:: ../static/images/admin/records.jpg
+   :align: center
+   :alt: Sample records.config file
+
+   Sample records.config file
+
+In addition to the :file:`records.config` file,
+Traffic Server provides other configuration files that are used to
+configure specific features. You can manually edit all configuration
+files as described in :ref:`configuration-file-reference`.
diff --git a/doc/admin/event-logging-formats.en.rst b/doc/admin/event-logging-formats.en.rst
new file mode 100644
index 00000000..751ec35e
--- /dev/null
+++ b/doc/admin/event-logging-formats.en.rst
@@ -0,0 +1,413 @@
+.. _event-logging-formats:
+
+Event Logging Formats
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This document provides a reference for all the different logging formats
+Traffic Server supports.
+Rather than just reading about those formats, you may also want to try our
+`online event log builder <http://trafficserver.apache.org/logbuilder/>`_ for an interactive way of
+building and understanding log formats.
+
+
+.. toctree::
+   :maxdepth: 2
+
+.. _custom-logging-fields:
+
+Custom Logging Fields
+=====================
+
+The following list describes Traffic Server custom logging fields.
+
+``{HTTP header field name}cqh``
+    Logs the information in the requested field of the client request
+    HTTP header. For example, ``%<{Accept-Language}cqh>`` logs the
+    ``Accept-Language:`` field in client request headers.
+
+``{HTTP header field name}pqh``
+    Logs the information in the requested field of the proxy request
+    HTTP header. For example, ``%<{Authorization}pqh>`` logs
+    the ``Authorization:`` field in proxy request headers.
+
+``{HTTP header field name}psh``
+    Logs the information in the requested field of the proxy response
+    HTTP header. For example, ``%<{Retry-After}psh>`` logs the
+    ``Retry-After:`` field in proxy response headers.
+
+``{HTTP header field name}ssh``
+    Logs the information in the requested field of the server response
+    HTTP header. For example, ``%<{Age}ssh>`` logs the ``Age:`` field in
+    server response headers.
+
+``caun``
+    The client authenticated username; result of the RFC931/ident lookup
+    of the client username.
+
+``cfsc``
+    The client finish status code; specifies whether the client request
+    to Traffic Server was successfully completed (``FIN``) or
+    interrupted (``INTR``).
+
+``chi``
+    The IP address of the client's host machine.
+
+``chih``
+    The IP address of the client's host machine in hexadecimal.
+
+``chp``
+    The port number of the client's host machine.
+
+``cps``
+    Client Protocol Stack, the output would be the conjunction of
+    protocol names in the stack spliced with '+', such as "TLS+SPDY".
+
+``cqbl``
+    The client request transfer length; the body length in the client
+    request to Traffic Server (in bytes).
+
+``cqhl``
+    The client request header length; the header length in the client
+    request to Traffic Server.
+
+``cqhm``
+    The HTTP method in the client request to Traffic Server: ``GET``,
+    ``POST``, and so on (subset of ``cqtx``).
+
+``cqhv``
+    The client request HTTP version.
+
+``cqtd``
+    The client request timestamp. Specifies the date of the client
+    request in the format yyyy-mm-dd, where yyyy is the 4-digit year, mm
+    is the 2-digit month, and dd is the 2-digit day.
+
+``cqtn``
+    The client request timestamp; date and time of the client's request
+    (in the Netscape timestamp format).
+
+``cqtq``
+    The client request timestamp, with millisecond resolution.
+
+``cqts``
+    The client-request timestamp in Squid format; the time of the client
+    request since January 1, 1970 UTC. Time is expressed in seconds,
+    with millisecond resolution.
+
+``cqtt``
+    The client request timestamp. The time of the client request in the
+    format hh:mm:ss, where hh is the two-digit hour in 24-hour format,
+    mm is the two-digit minutes value, and ss is the 2-digit seconds
+    value (for example, 16:01:19).
+
+``cqtx``
+    The full HTTP client request text, minus headers; for example, ::
+
+         GET http://www.company.com HTTP/1.0
+
+    In reverse proxy mode, Traffic Server logs the rewritten/mapped URL
+    (according to the rules in the
+    :file:`remap.config` file), _not_ the pristine/unmapped URL.
+
+``cqu``
+    The universal resource identifier (URI) of the request from client
+    to Traffic Server (subset of ``cqtx`` ).
+
+    In reverse proxy mode, Traffic Server logs the rewritten/mapped URL
+    (according to the rules in the
+    :file:`remap.config` file),
+    _not_ the pristine/unmapped URL.
+
+``cquc``
+    The client request canonical URL. This differs from ``cqu`` in that
+    blanks (and other characters that might not be parsed by log
+    analysis tools) are replaced by escape sequences. The escape
+    sequence is a percentage sign followed by the ASCII code number in
+    hex.
+
+    See `cquuc`_.
+
+``cqup``
+    The client request URL path; specifies the argument portion of the
+    URL (everything after the host). For example, if the URL is
+    ``http://www.company.com/images/x.gif``, then this field displays
+    ``/images/x.gif``
+
+    See `cquup`_.
+
+``cqus``
+    The client request URL scheme.
+
+.. _cquuc:
+
+``cquuc``
+    The client request unmapped URL canonical. This field records a URL
+    before it is remapped (reverse proxy mode).
+
+.. _cquup:
+
+``cquup``
+    The client request unmapped URL path. This field records a URL path
+    before it is remapped (reverse proxy mode).
+
+.. _cquuh:
+
+``cquuh``
+    The client request unmapped URL host. This field records a URL's
+    host before it is remapped (reverse proxy mode).
+
+``crat``
+    The Retry-After time in seconds, if specified by the origin server.
+
+``crc``
+    The cache result code; specifies how the cache responded to the
+    request (``HIT``, ``MISS``, and so on).
+
+``csscl``
+    The cached response length (in bytes) from origin server to Traffic
+    Server.
+
+``csshl``
+    The cached header length in the origin server response to Traffic
+    Server (in bytes).
+
+``csshv``
+    The cached server response HTTP version (1.0, 1.1, etc.).
+
+``csssc``
+    The cached HTTP response status code from origin server to Traffic
+    Server.
+
+``cwr``
+    The cache write result (``-``, ``WL_MISS``, ``INTR```, ``ERR`` or ``FIN``)
+
+``cwtr``
+    The cache write transform result
+
+``fsiz``
+    The size of the file (*n* bytes) as seen by the origin server.
+
+``pfsc``
+    The proxy finish status code; specifies whether the Traffic Server
+    request to the origin server was successfully completed (``FIN``),
+    interrupted (``INTR``) or timed out (``TIMEOUT``).
+
+``phn``
+    The hostname of the Traffic Server that generated the log entry in
+    collated log files.
+
+``phi``
+    The IP of the Traffic Server that generated the log entry in
+    collated log files.
+
+``phr``
+    The proxy hierarchy route; the route Traffic Server used to retrieve
+    the object.
+
+``pqbl``
+    The proxy request transfer length; the body length in Traffic
+    Server's request to the origin server.
+
+``pqhl``
+    The proxy request header length; the header length in Traffic
+    Server's request to the origin server.
+
+``pqsi``
+    The proxy request server IP address (0 on cache hits and parent-ip
+    for requests to parent proxies).
+
+``pqsn``
+    The proxy request server name; the name of the server that fulfilled
+    the request.
+
+``pscl``
+    The length of the Traffic Server response to the client (in bytes).
+
+``psct``
+    The content type of the document from server response header: (for
+    example, ``img/gif`` ).
+
+``pshl``
+    The header length in Traffic Server's response to the client.
+
+``psql``
+    The proxy response transfer length in Squid format (includes header
+    and content length).
+
+``pssc``
+    The HTTP response status code from Traffic Server to the client.
+
+``shi``
+    The IP address resolved from the DNS name lookup of the host in the
+    request. For hosts with multiple IP addresses, this field records
+    the IP address resolved from that particular DNS lookup.
+
+    This can be misleading for cached documents. For example: if the
+    first request was a cache miss and came from **``IP1``** for server
+    **``S``** and the second request for server **``S``** resolved to
+    **``IP2``** but came from the cache, then the log entry for the
+    second request will show **``IP2``**.
+
+``shn``
+    The hostname of the origin server.
+
+``sscl``
+    The response length (in bytes) from origin server to Traffic Server.
+
+``sshl``
+    The header length in the origin server response to Traffic Server
+    (in bytes).
+
+``sshv``
+    The server response HTTP version (1.0, 1.1, etc.).
+
+``sssc``
+    The HTTP response status code from origin server to Traffic Server.
+
+``ttms``
+    The time Traffic Server spends processing the client request; the
+    number of milliseconds between the time the client establishes the
+    connection with Traffic Server and the time Traffic Server sends the
+    last byte of the response back to the client.
+
+``ttmsh``
+    Same as ``ttms`` but in hexadecimal.
+
+``ttmsf``
+    The time Traffic Server spends processing the client request as a
+    fractional number of seconds. Time is specified in millisecond
+    resolution; however, instead of formatting the output as an integer
+    (as with ``ttms``), the display is formatted as a floating-point
+    number representing a fractional number of seconds.
+
+    For example: if the time is 1500 milliseconds, then this field
+    displays 1.5 while the ``ttms`` field displays 1500 and the ``tts``
+    field displays 1.
+
+``tts``
+    The time Traffic Server spends processing the client request; the
+    number of seconds between the time at which the client establishes
+    the connection with Traffic Server and the time at which Traffic
+    Server sends the last byte of the response back to the client.
+
+
+.. _logging-format-cross-reference:
+
+Logging Format Cross-Reference
+==============================
+
+The following sections illustrate the correspondence between Traffic
+Server logging fields and standard logging fields for the Squid and
+Netscape formats.
+
+Squid Logging Formats
+---------------------
+
+The following is a list of the Squid logging fields and the
+corresponding logging field symbols.
+
+================== =============
+Squid              Field Symbols
+================== =============
+``time``           ``cqts``
+``elapsed``        ``ttms``
+``client``         ``chi``
+``action/code``    ``crc/pssc``
+``size``           ``psql``
+``method``         ``cqhm``
+``url``            ``cquc``
+``ident``          ``caun``
+``hierarchy/from`` ``phr/pqsn``
+``content``        ``psct``
+================== =============
+
+Netscape Common Logging Formats
+-------------------------------
+
+The following is a list of the Netscape Common logging fields and the
+corresponding Traffic Server logging field symbols.
+
+=============== =============
+Netscape Common Field Symbols
+=============== =============
+``host``        ``chi``
+``usr``         ``caun``
+``[time]``      ``[cqtn]``
+``"req"``       ``"cqtx"``
+``s1``          ``pssc``
+``c1``          ``pscl``
+=============== =============
+
+Netscape Extended Logging Formats
+---------------------------------
+
+The following table lists the Netscape Extended logging fields and the
+corresponding Traffic Server logging field symbols.
+
+================= =============
+Netscape Extended Field Symbols
+================= =============
+``host``          ``chi``
+``usr``           ``caun``
+``[time]``        ``[cqtn]``
+``"req"``         ``"cqtx"``
+``s1``            ``pssc``
+``c1``            ``pscl``
+``s2``            ``sssc``
+``c2``            ``sscl``
+``b1``            ``cqbl``
+``b2``            ``pqbl``
+``h1``            ``cqhl``
+``h2``            ``pshl``
+``h3``            ``pqhl``
+``h4``            ``sshl``
+``xt``            ``tts``
+================= =============
+
+Netscape Extended-2 Logging Formats
+-----------------------------------
+
+The following is a list of the Netscape Extended-2 logging fields and
+the corresponding Traffic Server logging field symbols.
+
+=================== =============
+Netscape Extended-2 Field Symbols
+=================== =============
+``host``            ``chi``
+``usr``             ``caun``
+``[time]``          ``[cqtn]``
+``"req"``           ``"cqtx"``
+``s1``              ``pssc``
+``c1``              ``pscl``
+``s2``              ``sssc``
+``c2``              ``sscl``
+``b1``              ``cqbl``
+``b2``              ``pqbl``
+``h1``              ``cqhl``
+``h2``              ``pshl``
+``h3``              ``pqhl``
+``h4``              ``sshl``
+``xt``              ``tts`` 
+``route``           ``phr``
+``pfs``             ``cfsc``
+``ss``              ``pfsc``
+``crc``             ``crc``
+=================== =============
+
diff --git a/doc/admin/explicit-proxy-caching.en.rst b/doc/admin/explicit-proxy-caching.en.rst
new file mode 100644
index 00000000..60341b40
--- /dev/null
+++ b/doc/admin/explicit-proxy-caching.en.rst
@@ -0,0 +1,94 @@
+.. _explicit-proxy-caching:
+
+Explicit Proxy Caching
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+If you want to use Traffic Server as an explicit proxy cache, you must
+configure client software (i.e., browsers) to send requests directly to
+Traffic Server.
+
+If you do not configure Traffic Server to use the transparency option
+(with which client requests are intercepted en route to origin servers
+by a switch/router and rerouted to the Traffic Server machine), then
+clients must configure their web browsers to send HTTP requests to the
+Traffic Server proxy cache by configuring their browsers to download
+proxy configuration instructions from a :ref:`PAC file <using-a-pack-file>`
+(Proxy Auto-Configuration file).
+
+Configuring Browsers Manually
+=============================
+
+To manually configure a browser to send HTTP requests to Traffic Server,
+clients must provide the following information:
+
+-  The fully-qualified hostname or IP address of the Traffic Server node
+-  The Traffic Server proxy server port (port 8080)
+
+In addition, clients can specify *not* to use Traffic Server for certain
+sites - in such cases, requests to the listed sites go directly to the
+origin server. The procedures for manual configuration vary among
+browser versions; refer to specific browser documentation for complete
+proxy configuration instructions. You do not need to set any special
+configuration options on Traffic Server if you want to accept requests
+from manually-configured browsers.
+
+.. _using-a-pack-file:
+
+Using a PAC File
+================
+
+A **PAC file** is a specialized JavaScript function definition that a
+browser calls to determine how requests are handled. Clients must
+specify (in their browser settings) the URL from which the PAC file is
+loaded. You can store a PAC file on Traffic Server (or on any server in
+your network) and then provide the URL for this file to your clients.
+
+If you want to store a PAC file on the Traffic Server system, then you
+must perform the following configuration:
+
+-  Either copy an existing PAC file into the Traffic Server ``config``
+   directory or enter a script that defines the proxy server
+   configuration settings in the ``proxy.pac`` file provided. The file
+   is empty by default. A sample script is provided in `Sample PAC
+   File`_.
+-  Specify the port Traffic Server uses to serve the PAC file. The
+   default port is 8083, see :ts:cv:`proxy.config.admin.autoconf_port`.
+
+Sample PAC File
+---------------
+
+The following sample PAC file instructs browsers to connect directly to
+all hosts without a fully-qualified domain name and to all hosts in the
+local domain. All other requests go to the Traffic Server named
+``myproxy.company.com``.::
+
+    function FindProxyForURL(url, host)
+    {
+      if (isPlainHostName(host)) || (localHostOrDomainIs(host, ".company.com")) {
+        return "DIRECT";
+      }
+      else
+        return "PROXY myproxy.company.com:8080; DIRECT";
+    }
+
+
diff --git a/doc/admin/faqs.en.rst b/doc/admin/faqs.en.rst
new file mode 100644
index 00000000..3e1e3366
--- /dev/null
+++ b/doc/admin/faqs.en.rst
@@ -0,0 +1,392 @@
+.. _admin-faqs:
+
+FAQ and Troubleshooting Tips
+****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+FAQs
+====
+
+How do you create a raw disk for the cache if all your disks have mounted file systems?
+---------------------------------------------------------------------------------------
+
+Create a large file on filesystem (with :manpage:`dd(1)`) and mount it as loopback device.
+This is accomplished with :manpage:`losetup(8)` on Linux, :manpage:`lofiadm(1m)` on Solaris
+and Illumos, and :manpage:`mdconfig(8)` on FreeBSD.
+
+How do disk I/O errors affect the cache and what does Traffic Server do when a cache disk fails?
+------------------------------------------------------------------------------------------------
+
+If a disk drive fails five successive I/O operations, then Traffic
+Server considers the drive inaccessible and removes the entire disk from
+the cache. Normal cache operations continue for all other Traffic Server
+disk drives.
+
+If a client disconnects during the time that Traffic Server is downloading a large object, is any of the object saved in the cache?
+-----------------------------------------------------------------------------------------------------------------------------------
+
+When a client disconnects during an HTTP operation, Traffic Server
+continues to download the object from the origin server for up to 10
+seconds. If the transfer from the origin server completes successfully
+within 10 seconds after the client disconnect, then Traffic Server
+stores the object in cache. If the origin server download does *not*
+complete successfully within 10 seconds, then Traffic Server disconnects
+from the origin server and deletes the object from cache. Traffic Server
+does not store partial documents in the cache.
+
+Can Traffic Server cache Java applets, JavaScript programs, or other application files like VBScript?
+-----------------------------------------------------------------------------------------------------
+
+Yes, Traffic Server can store and serve Java applets, JavaScript
+programs, VBScripts, and other executable objects from its cache
+according to the freshness and cacheability rules for HTTP objects.
+Traffic Server does not execute the applets, scripts, or programs,
+however - these objects run only when the client system (ie, the one
+that sent the request) loads them.
+
+In Squid- and Netscape-format log files, what do the cache result codes mean?
+-----------------------------------------------------------------------------
+
+This is described in detail in the :ref:`log-formats-squid-format` documentation.
+
+What is recorded by the ``cqtx`` field in a custom log file?
+------------------------------------------------------------
+
+-  In **forward proxy mode**, the cqtx field records the complete client
+   request in the log file (for example, ``GET http://www.company.com HTTP/1.0``).
+-  In **reverse proxy mode**, the cqtx field records the hostname or IP
+   address of the origin server because Traffic Server first remaps the
+   request as per map rules in the :file:`remap.config` file.
+
+Does Traffic Server refresh entries in its host database after a certain period of time if they have not been used?
+-------------------------------------------------------------------------------------------------------------------
+
+By default, the Traffic Server host database observes the time-to-live
+(``ttl``) values set by name servers. You can reconfigure Traffic Server
+to ignore the ``ttl`` set by name servers and use a specific Traffic
+Server setting instead. Alternatively, you can configure Traffic Server
+to compare the ``ttl`` value set by the name server with the ``ttl``
+value set by Traffic Server, and then use either the lower or the higher
+value.
+
+see :ts:cv:`proxy.config.hostdb.ttl_mode` for more info
+
+Can you improve the look of your custom response pages by using images, animated .gifs, and Java applets?
+---------------------------------------------------------------------------------------------------------
+
+No, because Traffic Server can only respond to clients with a single
+text or HTML document. As a workaround, however, you can provide
+references on your custom response pages to images, animated .gifs, Java
+applets, or objects other than text which are located on a web server.
+Add links in the body_factory template files in the same way you would
+for any image in an HTML document (i.e., with the full URL in the
+``SRC`` attribute).
+
+Can Traffic Server run in forward proxy and reverse proxy modes at the same time?
+---------------------------------------------------------------------------------
+
+Yes. When you enable reverse proxy mode, Traffic Server remaps incoming
+requests according to the map rules in the :file:`remap.config` file. All
+other requests that do not match a map rule are simply served in forward
+proxy mode.
+
+If you want to run in reverse proxy only mode (wherein Traffic Server
+does *not* serve requests that fail to match a map rule), then you must
+set the configuration variable :ts:cv:`proxy.config.url_remap.remap_required`
+to ``1`` in the :file:`records.config` file.
+
+How do I enable forward proxy mode
+----------------------------------
+
+Please refer to the :ref:`forward-proxy` documentation.
+
+How do I interpret the Via: header code?
+----------------------------------------
+
+The ``Via`` header string can be decoded with the `Via Decoder Ring <http://trafficserver.apache.org/tools/via>`_.
+
+Support for HTTP Expect: Header
+-------------------------------
+
+Traffic Server currently does not handle request Expect: headers
+according to the HTTP/1.1 spec.
+
+Note that clients such as cURL automatically send Expect: for POST
+requests with large POST bodies, with a 1 second timeout if a 100
+Continue response is not received. To avoid the timeout when using cURL
+as a client to Traffic Server, you can turn off the Expect: header as
+follows::
+
+   curl -H"Expect:" http://www.example.com/
+
+C (libcurl)::
+
+   struct curl_slist *header_list=NULL;
+   header_list = curl_slist_append(header_list, "Expect:");
+   curl_easy_setopt(my_curlp, CURLOPT_HTTPHEADER, header_list);
+
+php::
+
+   curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
+
+Troubleshooting Tips
+====================
+
+The throughput statistic is inaccurate
+--------------------------------------
+
+Traffic Server updates the throughput statistic after it has transferred
+an entire object. For larger files, the byte count increases sharply at
+the end of a transfer. The complete number of bytes transferred is
+attributed to the last 10-second interval, although it can take several
+minutes to transfer the object. This inaccuracy is more noticeable with
+a light load. A heavier load yields a more accurate statistic.
+
+You are unable to execute Traffic Line commands
+-----------------------------------------------
+
+Traffic Line commands do not execute under the following conditions:
+
+- **When the traffic_manager process is not running** Check to see
+  if the :program:`traffic_manager` process is running by entering the
+  following command: ``pgrep -l traffic_manager``
+
+  If the :program:`traffic_manager` process is not running, then enter the
+  following command from the Traffic Server ``bin`` directory to start it:
+  ``./traffic_manager``
+
+  .. this is wrong
+
+  You should always start and stop Traffic Server with the
+  :program:`trafficserver start`` and :program:`trafficserver stop` commands to ensure
+  that all the processes start and stop correctly. For more information,
+  refer to :ref:`getting-started`.
+
+- **When you are not executing the command from $TSHome/bin** If the Traffic Server
+  ``bin`` directory is not in your path, then prepend the Traffic Line
+  commands with ``./`` (for example, ``./traffic_line -h``). 
+
+- **When multiple Traffic Server installations are present and you are not
+  executing the Traffic Line command from the active Traffic Server path
+  specified in ``/etc/trafficserver``**
+
+
+You observe inconsistent behavior when one node obtains an object from another node in the cluster
+--------------------------------------------------------------------------------------------------
+
+As part of the initial system preparation, you must synchronize the
+clocks on all nodes in your cluster. Minor time differences do not cause
+problems, but differences of more than a few minutes can affect Traffic
+Server operation.
+
+You should run a clock synchronization daemon such as xntpd. To obtain
+the latest version of xntpd, go to ``http://www.eecis.udel.edu/~ntp/``
+
+Web browsers display an error document with a 'data missing' message
+--------------------------------------------------------------------
+
+A message similar to the following might display in web browsers: ::
+
+      Data Missing
+
+      This document resulted from a POST operation and has expired from the cache. You can repost the form data to recreate the document by pressing the Reload button.
+
+This is a Web browser issue and not a problem specific to (or caused by)
+Traffic Server. Because Web browsers maintain a separate local cache in
+memory and/or disk on the client system, messages about documents that
+have expired from cache refer to the browser's local cache and *not*
+to the Traffic Server cache. There is no Traffic Server message or
+condition that can cause such messages to appear in a web browser.
+
+Traffic Server does not resolve any websites
+--------------------------------------------
+
+The browser indicates that it is contacting the host and then times out
+with the following message: ::
+
+        The document contains no data; Try again later, or contact the server's Administrator...
+
+Make sure the system is configured correctly and that Traffic Server can
+read the name resolution file:
+
+-  Check if the server can resolve DNS lookups by issuing the nslookup
+   command (for example, ``nslookup www.myhost.com``).
+-  Check if the :manpage:`resolv.conf(5)` file contains valid IP addresses
+   for your DNS servers.
+-  On some systems, if the :manpage:`resolv.conf(5)` file is unreadable or
+   has no name server entry, then the operating system uses
+   ``localhost`` as a name server. Traffic Server, however, does not use
+   this convention. If you want to use ``localhost`` as a name server,
+   then you must add a name server entry for ``127.0.0.1`` or
+   ``0.0.0.0`` in the :manpage:`resolv.conf(5)` file.
+-  Check that the Traffic Server user account has permission to read the
+   /etc/resolv.conf file. If it does not, then change the file
+   permissions to ``rw-r--r--`` (``644``)
+
+'Maximum document size exceeded' message in the system log file
+---------------------------------------------------------------
+
+The following message appears in the system log file: ::
+
+         WARNING: Maximum document size exceeded
+
+A requested object was larger than the maximum size allowed in the
+Traffic Server cache, so Traffic Server provided proxy service for the
+oversized object but did not cache it. To set the object size limit for
+the cache, modify the :ts:cv:`proxy.config.cache.max_doc_size`
+variable in the records.config file. If you do not want to limit the
+size of objects in the cache, then set the document size
+to ``0`` (zero).
+
+'DrainIncomingChannel' message in the system log file
+-----------------------------------------------------
+
+The following messages may appear in the system log file: ::
+
+     Feb 20 23:53:40 louis traffic_manager[4414]: ERROR ==> [drainIncomingChannel] Unknown message: 'GET http://www.telechamada.pt/ HTTP/1.0'
+     Feb 20 23:53:46 louis last message repeated 1 time
+     Feb 20 23:53:58 louis traffic_manager[4414]: ERROR ==> [drainIncomingChannel] Unknown message: 'GET http://www.ip.pt/ HTTP/1.0'
+
+These error messages indicate that a browser is sending HTTP requests to
+one of the Traffic Server cluster ports - either ``rsport`` (default
+port 8088) or ``mcport`` (default port 8089). Traffic Server discards
+the request; this error does not cause any Traffic Server problems. The
+misconfigured browser must be reconfigured to use the correct proxy
+port. Traffic Server clusters work best when configured to use a
+separate network interface and cluster on a private subnet, so that
+client machines have no access to the cluster ports.
+
+'No cop file' message in the system log file
+--------------------------------------------
+
+The following message appears repeatedly in the system log file: ::
+
+     traffic_cop[16056]: encountered "var/trafficserver/no_cop" file...exiting
+
+The file ``var/trafficserver/no_cop`` acts as an administrative control
+that instructs the :program:`traffic_cop` process to exit immediately without
+starting :program:`traffic_manager` or performing any health checks. The
+``no_cop`` file prevents Traffic Server from starting automatically when
+it has been stopped with the option:`trafficserver stop` command. Without
+this static control, Traffic Server would restart automatically upon
+system reboot. The ``no_cop`` control keeps Traffic Server off until it
+is explicitly restarted with the ::
+
+   trafficserver start
+
+command.
+
+
+Warning in the system log file when manually editing vaddrs.config
+------------------------------------------------------------------
+
+If you manually edit the vaddrs.config file as a non-root user, then
+Traffic Server issues a warning message in the system log file similar
+to the following::
+
+   WARNING: interface is ignored: Operation not permitted
+
+You can safely ignore this message; Traffic Server *does* apply your
+configuration edits.
+
+Traffic Server is running but no log files are created
+------------------------------------------------------
+
+Traffic Server only writes event log files when there is information to
+record. If Traffic Server is idle, then it's possible/probable that no
+log files exist. In addition:
+
+Make sure you're looking in the correct directory. By default, Traffic
+Server creates log files in the logs directory. Check the location of
+log files by checking the value of the variable
+proxy.config.log.logfile_dir in the records.config file. Check that the
+log directory has read/write permissions for the Traffic Server user
+account. If the log directory does not have the correct permissions,
+then the traffic_server process is unable to open or create log files.
+Check that logging is enabled by checking the value of the
+proxy.config.log.logging_enabled variable in the records.config file.
+Check that a log format is enabled. In the records.config file, select
+the standard or custom format by editing variables in the Logging Config
+section.
+
+Traffic Server shows an error indicating too many network connections
+---------------------------------------------------------------------
+
+By default, Traffic Server supports 8000 network connections: half of
+this number is allocated for client connections and the remaining half
+is for origin server connections. A **connection throttle event** occurs
+when client or origin server connections reach 90% of half the
+configured limit (3600 by default). When a connection throttle event
+occurs, Traffic Server continues processing all existing connections but
+will not accept new client connection requests until the connection
+count falls below the limit.
+
+Connection throttle events can occur under the following conditions:
+
+-  If there is a **connection spike** (e.g., if thousands of client
+   requests all reach Traffic Server at the same time). Such events are
+   typically transient and require no corrective action.
+-  If there is a **service overload** (e.g., if client requests
+   continuously arrive faster than Traffic Server can service them).
+   Service overloads often indicate network problems between Traffic
+   Server and origin servers. Conversely, it may indicate that Traffic
+   Server needs more memory, CPU, cache disks, or other resources to
+   handle the client load.
+
+If necessary, you can reset the maximum number of connections supported
+by Traffic Server by editing the value of the
+:ts:cv:`proxy.config.net.connections_throttle` configuration variable in
+the records.config file. Do not increase the connection throttle limit
+unless the system has adequate memory to handle the client connections
+required. A system with limited RAM might need a throttle limit lower
+than the default value. Do not set this variable below the minimum value
+of 100.
+
+Low memory symptoms
+-------------------
+
+Under heavy load, the Linux kernel can run out of RAM. This low memory
+condition can cause slow performance and a variety of other system
+problems. In fact, RAM exhaustion can occur even if the system has
+plenty of free swap space.
+
+Symptoms of extreme memory exhaustion include the following messages in
+the system log files (``/var/log/messages``)::
+
+   WARNING: errno 105 is ENOBUFS (low on kernel memory), consider a memory upgrade
+
+   kernel: eth0: can't fill rx buffer (force 0)!
+
+   kernel: recvmsg bug: copied E01BA916 seq E01BAB22
+
+To avoid memory exhaustion, add more RAM to the system or reduce the
+load on Traffic Server.
+
+Connection timeouts with the origin server
+------------------------------------------
+
+Certain origin servers take longer than 30 seconds to post HTTP
+requests, which results in connection timeouts with Traffic Server. To
+prevent such connection timeouts, you must change the value of the
+configuration variable proxy.config.http.connect_attempts_timeout in
+the records.config file to 60 seconds or more.
+
diff --git a/doc/admin/forward-proxy.en.rst b/doc/admin/forward-proxy.en.rst
new file mode 100644
index 00000000..03c3d774
--- /dev/null
+++ b/doc/admin/forward-proxy.en.rst
@@ -0,0 +1,80 @@
+.. _forward-proxy:
+
+Forward Proxy
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The Apache Traffic Server is a general purpose *proxy*. As such it can
+also be used as forward proxy.
+
+A forward proxy is can be used as a central tool in your infrastructure
+to access the web. In combination with a cache that means overall
+reduced bandwidth usage.
+
+If your forward proxy is not also configured as :ref:`transparent-proxy`
+your clients will have to be configured to actually use it.
+
+The main difference between a forward and a transparent proxy is that
+User Agents *know* that they are accessing a proxy, thus forming their
+requests like so: ::
+
+    GET http://example.com/index.php?id=1337 HTTP/1.1
+
+This request, then is translated by the proxy to::
+
+    GET /index?id=1337 HTTP/1.1
+    Host: example.com
+
+Apache Traffic Server offers two ways to User Agents: They can either be
+pointed directly to the default ``8080`` port. Alternatively, they can
+be pointed to the more dynamic :ts:cv:`proxy.config.url_remap.default_to_server_pac`
+
+This port will then serve a JavaScript like configuration that User
+Agents can use to determine where to send their requests to.
+
+Configuration
+=============
+
+In order to configure Apache Traffic Server as forward proxy you will
+have to edit :file:`records.config` and set
+
+-  :ts:cv:`proxy.config.url_remap.remap_required` to  ``0``
+
+If your proxy is serving as *pure* forward proxy, you will also want to
+set
+
+-  :ts:cv:`proxy.config.reverse_proxy.enabled` to  ``0``
+
+Other configuration variables to consider:
+
+-  :ts:cv:`proxy.config.http.no_dns_just_forward_to_parent`
+-  :ts:cv:`proxy.config.http.forward.proxy_auth_to_parent`
+-  :ts:cv:`proxy.config.http.insert_squid_x_forwarded_for`
+
+Security Considerations
+=======================
+
+It's important to note that once your Apache Traffic Server is
+configured as forward proxy it will indiscriminately accept proxy
+requests from anyone. That means, if it's reachable on the internet, you
+have configured an *Open Proxy*. Most of the time, this is *not* what
+you want, so you'll have to make sure it's either only reachable within
+your NAT or is secured by firewall rules that permit only those clients
+to access it which you want to it to access.
+
diff --git a/doc/admin/getting-started.en.rst b/doc/admin/getting-started.en.rst
new file mode 100644
index 00000000..bdb68d87
--- /dev/null
+++ b/doc/admin/getting-started.en.rst
@@ -0,0 +1,189 @@
+
+.. _getting-started:
+
+Getting Started
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+.. toctree::
+   :maxdepth: 2
+
+Before you start
+================
+
+Before you get started with Traffic Server you may have to decide which
+version you want to use. Traffic Server follows the `Semantic Versioning
+<http://semver.org>`_ guidelines, in summary 
+
+A version is made of a version-triplet: ``MAJOR.MINOR.PATCH``
+
+As of v4.0.0, there are no longer any development (or unstable) releases.
+All releases are considered stable and ready for production use, releases
+within a major version are always upgrade compatible. More details are
+available on the `Wiki page
+<https://cwiki.apache.org/confluence/display/TS/New+Release+Processes>`_.
+
+Sometimes we speak of trunk, master or HEAD, all of which are used
+interchangeably: trunk or master or sometimes TIP or HEAD, refer to the
+latest code in a Git Version Control System. Master is always kept releasable,
+and compatible with the current major release version. Incompatible changes
+are sometimes committed on a next-major release branch, for example we have
+the ``5.0.x`` branch where changes incompatible with 4.x are managed.
+
+If your distribution does not come with a prepackaged Traffic Server,
+please go to `downloads </downloads>`_ to choose the version that you
+consider most appropriate for yourself. If you want to really be on the
+bleeding edge you can clone our `git
+repository <https://git-wip-us.apache.org/repos/asf/trafficserver.git>`_.
+
+Please note that while we do have a `GitHub
+Mirror <https://github.com/apache/trafficserver>`_ that you can also use
+to submit pull requests, it may not be entirely up-to-date.
+
+Building Traffic Server
+=======================
+
+In order to build Traffic Server from source you will need the following
+(development) packages:
+
+-  pkgconfig
+-  libtool
+-  gcc (>= 4.3 or clang > 3.0)
+-  make (GNU Make!)
+-  openssl
+-  tcl
+-  expat
+-  pcre
+-  libcap
+-  flex (for TPROXY)
+-  hwloc
+-  lua
+-  curses
+-  curl (both for :program:`traffic_top`)
+
+if you're building from a git clone, you'll also need
+
+-  git
+-  autoconf
+-  automake
+
+We will show-case a build from git::
+
+   git clone https://git-wip-us.apache.org/repos/asf/trafficserver.git
+
+Next, we ``cd trafficserver`` and run::
+
+   autoreconf -if
+
+This will generate a ``configure`` file from ``configure.ac``, so now we
+can run that::
+
+   ./configure --prefix=/opt/ats
+
+Note well, that by default Traffic Server uses the user ``nobody``, as
+well as user's primary group as Traffic Server user. If you want to
+change that, you can override it here::
+
+   ./configure --prefix=/opt/ats --with-user=tserver
+
+If dependencies are not in standard paths (``/usr/local`` or ``/usr``),
+you need to pass options to ``configure`` to account for that::
+
+   ./configure --prefix=/opt/ats --with-user=tserver --with-lua=/opt/csw
+
+Most ``configure`` path-options accept a format of
+``"INCLUDE_PATH:LIBRARY_PATH"``::
+
+   ./configure --prefix=/opt/ats --with-user=tserver --with-lua=/opt/csw \
+      --with-pcre=/opt/csw/include:/opt/csw/lib/amd64
+
+We can run ``make`` to build the project. We highly recommend to run
+``make check`` to verify the build's general sanity::
+
+   make
+   make check
+
+We can finally run ``make install`` to install (you may have to switch
+to root to do this)::
+
+     sudo make install
+
+We also recommend to run a regression test. Please note that this will
+only work successfully with the default ``layout``::
+
+     cd /opt/ats
+     sudo bin/traffic_server -R 1
+
+After you have installed Traffic Server on your system, you can do any
+of the following:
+
+.. _start-traffic-server:
+
+Start Traffic Server
+====================
+
+To start Traffic Server manually, issue the ``trafficserver`` command,
+passing in the attribute ``start``. This command starts all the
+processes that work together to process Traffic Server requests as well
+as manage, control, and monitor the health of the Traffic Server system.
+
+To run the ``trafficserver start`` command, e.g.::
+
+   bin/trafficserver start
+
+At this point your server is up and running in the default configuration
+of a :ref:`reverse-proxy-and-http-redirects`.
+
+.. _start-straffic-line:
+
+Start Traffic Line
+==================
+
+Traffic Line provides a quick way of viewing Traffic Server statistics
+and configuring the Traffic Server system via command-line interface. To
+execute individual commands or script multiple commands, refer to
+:program:`traffic_line`.
+
+Traffic Line commands take the following form::
+
+     bin/traffic_line -command argument
+
+For a list of :program:`traffic_line` commands, enter::
+
+     bin/traffic_line -h
+
+Please note that :program:`traffic_line`, while a fine tool for an
+administrator, is a poor choice for automation, especially that of
+monitoring. See our chapter on :ref:`monitoring-traffic`
+for how to do that better.
+
+.. _stop-traffic-server:
+
+Stop Traffic Server
+===================
+
+To stop Traffic Server, always use the :program:`trafficserver` command,
+passing in the attribute ``stop``. This command stops all the Traffic
+Server processes (:program:`traffic_manager`, :program:`traffic_server`, and
+:program:`traffic_cop`). Do not manually stop processes, as this can lead to
+unpredictable results.::
+
+    bin/trafficserver stop
+
diff --git a/doc/admin/hierachical-caching.en.rst b/doc/admin/hierachical-caching.en.rst
new file mode 100644
index 00000000..66a1a5e8
--- /dev/null
+++ b/doc/admin/hierachical-caching.en.rst
@@ -0,0 +1,180 @@
+.. _hierarchical-caching:
+
+Hierarchical Caching
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+.. toctree::
+   :maxdepth: 2
+
+Understanding Cache Hierarchies
+===============================
+
+A cache hierarchy consists of cache levels that communicate with each
+other. Traffic Server supports several types of cache hierarchies. All
+cache hierarchies recognize the concept of **parent** and **child**. A
+parent cache is a cache higher up in the hierarchy, to which Traffic
+Server can forward requests. A child cache is a cache for which Traffic
+Server is a parent.
+
+Traffic Server supports the following hierarchical caching options:
+
+Parent Caching
+==============
+
+If a Traffic Server node cannot find a requested object in its cache,
+then it searches a parent cache (which itself can search other caches)
+before finally retrieving the object from the origin server. You can
+configure a Traffic Server node to use one or more parent caches so that
+if one parent is unavailable, then another parent is availale to service
+requests. This is called `Parent Failover`_. Traffic
+Server will support parent caching for HTTP and HTTPS requests.
+
+**Note:** If you do not want all requests to go to the parent cache,
+then simply configure Traffic Server to route certain requests (such as
+requests containing specific URLs) directly to the origin server. Simply
+set parent proxy rules in :file:`parent.config`
+
+The figure below illustrates a simple cache hierarchy with a Traffic
+Server node configured to use a parent cache. In the following scenario,
+a client sends a request to a Traffic Server node that is a child in the
+cache hierarchy (because it's configured to forward missed requests to a
+parent cache). The request is a cache miss, so Traffic Server then
+forwards the request to the parent cache, where it is a cache hit. The
+parent sends a copy of the content to the Traffic Server, where it is
+cached and then served to the client. Future requests for this content
+can now be served directly from the Traffic Server cache (until the data
+is stale or expired).
+
+.. figure:: ../static/images/admin/cachehrc.jpg
+   :align: center
+   :alt: Parent caching
+
+   Parent caching
+
+**Note:** If the request is a cache miss on the parent, then the parent
+retrieves the content from the origin server (or from another cache,
+depending on the parent’s configuration). The parent caches the content
+and then sends a copy to Traffic Server (its child), where it is cached
+and served to the client.
+
+Parent Failover
+---------------
+
+Traffic Server supports use of several parent caches. This ensures that
+if one parent cache is not available, another parent cache can service
+client requests.
+
+When you configure your Traffic Server to use more than one parent
+cache, Traffic Server detects when a parent is not available and sends
+missed requests to another parent cache. If you specify more than two
+parent caches, then the order in which the parent caches are queried
+depends upon the parent proxy rules configured in the file:`parent.config`
+configuration file. By default, the parent caches are queried in the
+order they are listed in the configuration file.
+
+.. _configuring-traffic-server-to-use-a-parent-cache:
+
+Configuring Traffic Server to Use a Parent Cache
+------------------------------------------------
+
+To configure Traffic Server to use one or more parent caches, you must
+complete the following steps:
+
+-  Enable the parent caching option.
+-  Identify the parent cache you want to use to service missed requests.
+   To use **parent failover**, you must identify more than one parent
+   cache so that when a parent cache is unavailable, requests are sent
+   to another parent cache.
+
+.. note:: You need to configure the child cache only. No additional configuration is needed for the Traffic Server parent cache.
+
+Configure Traffic Server to use a parent cache by editing the following
+variable :ts:cv:`proxy.config.http.parent_proxy_routing_enable` in :file:`records.config` file.
+
+Edit the :file:`parent.config` file located in the Traffic Server ``config`` directory to set parent
+proxy rules to specify the parent cache to which you want missed
+requests to be forwarded;
+
+The following example configures Traffic Server to route all requests
+containing the regular expression ``politics`` and the path
+``/viewpoint`` directly to the origin server (bypassing any parent
+hierarchies): ::
+
+    url_regex=politics prefix=/viewpoint go_direct=true
+
+The following example configures Traffic Server to direct all missed
+requests with URLs beginning with ``http://host1`` to the parent cache
+``parent1``. If ``parent1`` cannot serve the requests, then requests are
+forwarded to ``parent2``. Because ``round-robin=true``, Traffic Server
+goes through the parent cache list in a round-robin based on client IP
+address.::
+
+    dest_host=host1 scheme=http parent="parent1;parent2" round-robin=strict
+
+Run the command :option:`traffic_line -x` to apply the configuration changes.
+
+.. XXX As of yet, this is unsupported.
+
+.. # ICP Peering # {#ICPPeering}
+
+.. The Internet Cache Protocol (ICP) is used by proxy caches to exchange information 
+   about their content. ICP query messages ask other caches if they are storing 
+   a particular URL; ICP response messages reply with a hit or miss answer. A 
+   cache exchanges ICP messages only with specific **ICP peers**, which are neighboring 
+   caches that can receive ICP messages. An ICP peer can be a **sibling cache 
+   **(which is at the same level in the hierarchy) or a **parent cache** (which 
+   is one level up in the hierarchy). 
+
+.. If Traffic Server has ICP caching enabled, then it sends ICP queries to its 
+   ICP peers when the HTTP request is a cache miss. If there are no hits but parents 
+   exist, then a parent is selected using a round-robin policy. If no ICP parents 
+   exist, then Traffic Server forwards the request to its HTTP parents. If there 
+   are no HTTP parent caches established, then Traffic Server forwards the request 
+   to the origin server. 
+
+.. If Traffic Server receives a hit message from an ICP peer, then Traffic Server 
+   sends the HTTP request to that peer. However, it might turn out to be a cache 
+   miss because the original HTTP request contains header information that is 
+   not communicated by the ICP query. For example, the hit might not be the requested 
+   alternate. If an ICP hit turns out to be a miss, then Traffic Server forwards 
+   the request to either its HTTP parent caches or to the origin server. 
+
+.. To configure a Traffic Server node to be part of an ICP cache hierarchy, you 
+   must perform the following tasks: 
+
+.. * Determine if the Traffic Server can receive ICP messages only, or if it can send _and_ receive ICP messages. 
+   * Determine if Traffic Server can send messages directly to each ICP peer or send a single message on a specified multicast channel. 
+   * Specify the port used for ICP messages. 
+   * Set the ICP query timeout. 
+   * Identify the ICP peers (siblings and parents) with which Traffic Server can communicate.
+
+.. To configure Traffic Server to use an ICP cache hierarchy edit the following variables in :file:`records.config` file:
+
+.. * :ts:cv:`proxy.config.icp.enabled`
+   * :ts:cv:`proxy.config.icp.icp_port`
+   * :ts:cv:`proxy.config.icp.multicast_enabled`
+   * :ts:cv:`proxy.config.icp.query_timeout`
+
+.. Edit :file:`icp.config` file located in the Traffic Server `config` directory: 
+   For each ICP peer you want to identify, enter a separate rule in the :file:`icp.config` file.
+
+.. Run the command :option:`traffic_line -x` to apply the configuration changes.
+
diff --git a/doc/admin/http-proxy-caching.en.rst b/doc/admin/http-proxy-caching.en.rst
new file mode 100644
index 00000000..e305007e
--- /dev/null
+++ b/doc/admin/http-proxy-caching.en.rst
@@ -0,0 +1,846 @@
+.. _http-proxy-caching:
+
+HTTP Proxy Caching
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Web proxy caching enables you to store copies of frequently-accessed web
+objects (such as documents, images, and articles) and then serve this
+information to users on demand. It improves performance and frees up
+Internet bandwidth for other tasks.
+
+.. toctree::
+   :maxdepth: 2
+
+Understanding HTTP Web Proxy Caching
+====================================
+
+Internet users direct their requests to web servers all over the
+Internet. A caching server must act as a **web proxy server** so it can
+serve those requests. After a web proxy server receives requests for web
+objects, it either serves the requests or forwards them to the **origin
+server** (the web server that contains the original copy of the
+requested information). The Traffic Server proxy supports **explicit
+proxy caching**, in which the user's client software must be configured
+to send requests directly to the Traffic Server proxy. The following
+overview illustrates how Traffic Server serves a request.
+
+1. Traffic Server receives a client request for a web object.
+
+2. Using the object address, Traffic Server tries to locate the
+   requested object in its object database (**cache**).
+
+3. If the object is in the cache, then Traffic Server checks to see if
+   the object is fresh enough to serve. If it is fresh, then Traffic
+   Server serves it to the client as a **cache hit** (see the figure
+   below).
+
+   .. figure:: ../static/images/admin/cache_hit.jpg
+      :align: center
+      :alt: A cache hit
+
+      A cache hit
+
+4. If the data in the cache is stale, then Traffic Server connects to
+   the origin server and checks if the object is still fresh (a
+   :term:`revalidation`). If it is, then Traffic Server immediately sends
+   the cached copy to the client.
+
+5. If the object is not in the cache (a **cache miss**) or if the server
+   indicates the cached copy is no longer valid, then Traffic Server
+   obtains the object from the origin server. The object is then
+   simultaneously streamed to the client and the Traffic Server local
+   cache (see the figure below). Subsequent requests for the object can
+   be served faster because the object is retrieved directly from cache.
+
+   .. figure:: ../static/images/admin/cache_miss.jpg
+      :align: center
+      :alt: A cache miss
+
+      A cache miss
+
+Caching is typically more complex than the preceding overview suggests.
+In particular, the overview does not discuss how Traffic Server ensures
+freshness, serves correct HTTP alternates, and treats requests for
+objects that cannot/should not be cached. The following sections discuss
+these issues in greater detail.
+
+Ensuring Cached Object Freshness
+================================
+
+When Traffic Server receives a request for a web object, it first tries
+to locate the requested object in its cache. If the object is in cache,
+then Traffic Server checks to see if the object is fresh enough to
+serve. For HTTP objects, Traffic Server supports optional
+author-specified expiration dates. Traffic Server adheres to these
+expiration dates; otherwise, it picks an expiration date based on how
+frequently the object is changing and on administrator-chosen freshness
+guidelines. Objects can also be revalidated by checking with the origin
+server to see if an object is still fresh.
+
+HTTP Object Freshness
+---------------------
+
+Traffic Server determines whether an HTTP object in the cache is fresh
+by:
+
+-  **Checking the** ``Expires`` **or** ``max-age`` **header**
+
+   Some HTTP objects contain ``Expires`` headers or ``max-age`` headers
+   that explicitly define how long the object can be cached. Traffic
+   Server compares the current time with the expiration time to
+   determine if the object is still fresh.
+
+-  **Checking the** ``Last-Modified`` **/** ``Date`` **header**
+
+   If an HTTP object has no ``Expires`` header or ``max-age`` header,
+   then Traffic Server can calculate a freshness limit using the
+   following formula::
+
+      freshness_limit = ( date - last_modified ) * 0.10
+
+   where *date* is the date in the object's server response header
+   and *last_modified* is the date in the ``Last-Modified`` header.
+   If there is no ``Last-Modified`` header, then Traffic Server uses the
+   date the object was written to cache. The value ``0.10`` (10 percent)
+   can be increased or reduced to better suit your needs (refer to
+   `Modifying Aging Factor for Freshness Computations`_).
+
+   The computed freshness limit is bound by a minimum and maximum value
+   - refer to `Setting Absolute Freshness Limits`_ for more information.
+
+-  **Checking the absolute freshness limit**
+
+   For HTTP objects that do not have ``Expires`` headers or do not have
+   both ``Last-Modified`` and ``Date`` headers, Traffic Server uses a
+   maximum and minimum freshness limit (refer to `Setting Absolute Freshness Limits`_).
+
+-  **Checking revalidate rules in the** :file:`cache.config` **file**
+
+   Revalidate rules apply freshness limits to specific HTTP objects. You
+   can set freshness limits for objects originating from particular
+   domains or IP addresses, objects with URLs that contain specified
+   regular expressions, objects requested by particular clients, and so
+   on (refer to :file:`cache.config`).
+
+Modifying Aging Factor for Freshness Computations
+-------------------------------------------------
+
+If an object does not contain any expiration information, then Traffic
+Server can estimate its freshness from the ``Last-Modified`` and
+``Date`` headers. By default, Traffic Server stores an object for 10% of
+the time that elapsed since it last changed. You can increase or reduce
+the percentage according to your needs.
+
+To modify the aging factor for freshness computations
+
+1. Change the value for :ts:cv:`proxy.config.http.cache.heuristic_lm_factor`.
+
+2. Run the :option:`traffic_line -x` command to apply the configuration
+   changes.
+
+Setting absolute Freshness Limits
+---------------------------------
+
+Some objects do not have ``Expires`` headers or do not have both
+``Last-Modified`` and ``Date`` headers. To control how long these
+objects are considered fresh in the cache, specify an **absolute
+freshness limit**.
+
+To specify an absolute freshness limit
+
+1. Edit the variables
+
+   -  :ts:cv:`proxy.config.http.cache.heuristic_min_lifetime`
+   -  :ts:cv:`proxy.config.http.cache.heuristic_max_lifetime`
+
+2. Run the :option:`traffic_line -x` command to apply the configuration
+   changes.
+
+Specifying Header Requirements
+------------------------------
+
+To further ensure freshness of the objects in the cache, configure
+Traffic Server to cache only objects with specific headers. By default,
+Traffic Server caches all objects (including objects with no headers);
+you should change the default setting only for specialized proxy
+situations. If you configure Traffic Server to cache only HTTP objects
+with ``Expires`` or ``max-age`` headers, then the cache hit rate will be
+noticeably reduced (since very few objects will have explicit expiration
+information).
+
+To configure Traffic Server to cache objects with specific headers
+
+1. Change the value for :ts:cv:`proxy.config.http.cache.required_headers`.
+
+2. Run the :option:`traffic_line -x` command to apply the configuration
+   changes.
+
+.. _cache-control-headers:
+
+Cache-Control Headers
+---------------------
+
+Even though an object might be fresh in the cache, clients or servers
+often impose their own constraints that preclude retrieval of the object
+from the cache. For example, a client might request that a object *not*
+be retrieved from a cache, or if it does, then it cannot have been
+cached for more than 10 minutes. Traffic Server bases the servability of
+a cached object on ``Cache-Control`` headers that appear in both client
+requests and server responses. The following ``Cache-Control`` headers
+affect whether objects are served from cache:
+
+-  The ``no-cache`` header, sent by clients, tells Traffic Server that
+   it should not serve any objects directly from the cache;
+   therefore, Traffic Server will always obtain the object from the
+   origin server. You can configure Traffic Server to ignore client
+   ``no-cache`` headers - refer to `Configuring Traffic Server to Ignore Client no-cache Headers`_
+   for more information.
+
+-  The ``max-age`` header, sent by servers, is compared to the object
+   age. If the age is less than ``max-age``, then the object is fresh
+   and can be served.
+
+-  The ``min-fresh`` header, sent by clients, is an **acceptable
+   freshness tolerance**. This means that the client wants the object to
+   be at least this fresh. Unless a cached object remains fresh at least
+   this long in the future, it is revalidated.
+
+-  The ``max-stale`` header, sent by clients, permits Traffic Server to
+   serve stale objects provided they are not too old. Some browsers
+   might be willing to take slightly stale objects in exchange for
+   improved performance, especially during periods of poor Internet
+   availability.
+
+Traffic Server applies ``Cache-Control`` servability criteria
+***after*** HTTP freshness criteria. For example, an object might be
+considered fresh but will not be served if its age is greater than its
+``max-age``.
+
+Revalidating HTTP Objects
+-------------------------
+
+When a client requests an HTTP object that is stale in the cache,
+Traffic Server revalidates the object. A **revalidation** is a query to
+the origin server to check if the object is unchanged. The result of a
+revalidation is one of the following:
+
+-  If the object is still fresh, then Traffic Server resets its
+   freshness limit and serves the object.
+
+-  If a new copy of the object is available, then Traffic Server caches
+   the new object (thereby replacing the stale copy) and simultaneously
+   serves the object to the client.
+
+-  If the object no longer exists on the origin server, then Traffic
+   Server does not serve the cached copy.
+
+-  If the origin server does not respond to the revalidation query, then
+   Traffic Server serves the stale object along with a
+   ``111 Revalidation Failed`` warning.
+
+By default, Traffic Server revalidates a requested HTTP object in the
+cache if it considers the object to be stale. Traffic Server evaluates
+object freshness as described in `HTTP Object Freshness`_.
+You can reconfigure how Traffic Server evaluates freshness by selecting
+one of the following options:
+
+-  Traffic Server considers all HTTP objects in the cache to be stale:
+   always revalidate HTTP objects in the cache with the origin server.
+-  Traffic Server considers all HTTP objects in the cache to be fresh:
+   never revalidate HTTP objects in the cache with the origin server.
+-  Traffic Server considers all HTTP objects without ``Expires`` or
+   ``Cache-control`` headers to be stale: revalidate all HTTP objects
+   without ``Expires`` or ``Cache-Control`` headers.
+
+To configure how Traffic Server revalidates objects in the cache, you
+can set specific revalidation rules in :file:`cache.config`.
+
+To configure revalidation options
+
+1. Edit the following variable in :file:`records.config`
+
+   -  :ts:cv:`proxy.config.http.cache.when_to_revalidate`
+
+2. Run the :option:`traffic_line -x` command to apply the configuration
+   changes.
+
+Scheduling Updates to Local Cache Content
+=========================================
+
+To further increase performance and to ensure that HTTP objects are
+fresh in the cache, you can use the **Scheduled Update** option. This
+configures Traffic Server to load specific objects into the cache at
+scheduled times. You might find this especially beneficial in a reverse
+proxy setup, where you can *preload* content you anticipate will be in
+demand.
+
+To use the Scheduled Update option, you must perform the following
+tasks.
+
+-  Specify the list of URLs that contain the objects you want to
+   schedule for update,
+-  the time the update should take place,
+-  and the recursion depth for the URL.
+-  Enable the scheduled update option and configure optional retry
+   settings.
+
+Traffic Server uses the information you specify to determine URLs for
+which it is responsible. For each URL, Traffic Server derives all
+recursive URLs (if applicable) and then generates a unique URL list.
+Using this list, Traffic Server initiates an HTTP ``GET`` for each
+unaccessed URL. It ensures that it remains within the user-defined
+limits for HTTP concurrency at any given time. The system logs the
+completion of all HTTP ``GET`` operations so you can monitor the
+performance of this feature.
+
+Traffic Server also provides a **Force Immediate Update** option that
+enables you to update URLs immediately without waiting for the specified
+update time to occur. You can use this option to test your scheduled
+update configuration (refer to `Forcing an Immediate Update`_).
+
+Configuring the Scheduled Update Option
+---------------------------------------
+
+To configure the scheduled update option
+
+1. Edit :file:`update.config` to
+   enter a line in the file for each URL you want to update.
+2. Edit the following variables
+
+   -  :ts:cv:`proxy.config.update.enabled`
+   -  :ts:cv:`proxy.config.update.retry_count`
+   -  :ts:cv:`proxy.config.update.retry_interval`
+   -  :ts:cv:`proxy.config.update.concurrent_updates`
+
+3. Run the :option:`traffic_line -x` command to apply the configuration
+   changes.
+
+Forcing an Immediate Update
+---------------------------
+
+Traffic Server provides a **Force Immediate Update** option that enables
+you to immediately verify the URLs listed in :file:`update.config`.
+The Force Immediate Update option disregards the offset hour and
+interval set in :file:`update.config` and immediately updates the
+URLs listed.
+
+To configure the Force Immediate Update option
+
+1. Edit the following variables
+
+   -  :ts:cv:`proxy.config.update.force`
+   -  Make sure :ts:cv:`proxy.config.update.enabled` is set to 1.
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. important::
+
+   When you enable the Force Immediate Update option, Traffic Server continually updates the URLs specified in
+   :file:`update.config` until you disable the option. To disable the Force Immediate Update option, set
+   :ts:cv:`proxy.config.update.force` to ``0`` (zero).
+
+Pushing Content into the Cache
+==============================
+
+Traffic Server supports the HTTP ``PUSH`` method of content delivery.
+Using HTTP ``PUSH``, you can deliver content directly into the cache
+without client requests.
+
+Configuring Traffic Server for PUSH Requests
+--------------------------------------------
+
+Before you can deliver content into your cache using HTTP ``PUSH``, you
+must configure Traffic Server to accept ``PUSH`` requests.
+
+To configure Traffic Server to accept ``PUSH`` requests
+
+1. Edit :file:`ip_allow.config` to allow ``PUSH``.
+
+2. Edit the following variable in :file:`records.config`, enable
+   the push_method.
+
+   -  :ts:cv:`proxy.config.http.push_method_enabled`
+
+3. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Understanding HTTP PUSH
+-----------------------
+
+``PUSH`` uses the HTTP 1.1 message format. The body of a ``PUSH``
+request contains the response header and response body that you want to
+place in the cache. The following is an example of a ``PUSH`` request::
+
+   PUSH http://www.company.com HTTP/1.0
+   Content-length: 84
+
+   HTTP/1.0 200 OK
+   Content-type: text/html
+   Content-length: 17
+
+   <HTML>
+   a
+   </HTML>
+
+.. important::
+
+   Your header must include ``Content-length`` - ``Content-length`` must include both ``header`` and ``body byte
+   count``.
+
+Tools that will help manage pushing
+-----------------------------------
+
+There is a perl script for pushing, :program:`tspush`,
+which can help you understanding how to write scripts for pushing
+content yourself.
+
+Pinning Content in the Cache
+============================
+
+The **Cache Pinning Option** configures Traffic Server to keep certain
+HTTP objects in the cache for a specified time. You can use this option
+to ensure that the most popular objects are in cache when needed and to
+prevent Traffic Server from deleting important objects. Traffic Server
+observes ``Cache-Control`` headers and pins an object in the cache only
+if it is indeed cacheable.
+
+To set cache pinning rules
+
+1. Make sure the following variable in :file:`records.config` is set
+
+   -  :ts:cv:`proxy.config.cache.permit.pinning`
+
+2. Add a rule in :file:`cache.config` for each
+   URL you want Traffic Server to pin in the cache. For example::
+
+      url_regex=^https?://(www.)?apache.org/dev/ pin-in-cache=12h
+
+3. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+To Cache or Not to Cache?
+=========================
+
+When Traffic Server receives a request for a web object that is not in
+the cache, it retrieves the object from the origin server and serves it
+to the client. At the same time, Traffic Server checks if the object is
+cacheable before storing it in its cache to serve future requests.
+
+Caching HTTP Objects
+====================
+
+Traffic Server responds to caching directives from clients and origin
+servers, as well as directives you specify through configuration options
+and files.
+
+Client Directives
+-----------------
+
+By default, Traffic Server does *not* cache objects with the following
+**request headers**:
+
+-  ``Authorization``: header
+
+-  ``Cache-Control: no-store`` header
+
+-  ``Cache-Control: no-cache`` header
+
+   To configure Traffic Server to ignore the ``Cache-Control: no-cache``
+   header, refer to `Configuring Traffic Server to Ignore Client no-cache Headers`_
+
+-  ``Cookie``: header (for text objects)
+
+   By default, Traffic Server caches objects served in response to
+   requests that contain cookies (unless the object is text). You can
+   configure Traffic Server to not cache cookied content of any type,
+   cache all cookied content, or cache cookied content that is of image
+   type only. For more information, refer to `Caching Cookied Objects`_.
+
+Configuring Traffic Server to Ignore Client no-cache Headers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default, Traffic Server strictly observes client
+``Cache-Control: no-cache`` directives. If a requested object contains a
+``no-cache`` header, then Traffic Server forwards the request to the
+origin server even if it has a fresh copy in cache. You can configure
+Traffic Server to ignore client ``no-cache`` directives such that it
+ignores ``no-cache`` headers from client requests and serves the object
+from its cache.
+
+To configure Traffic Server to ignore client ``no-cache`` headers
+
+1. Edit the following variable in :file:`records.config`
+
+   -  :ts:cv:`proxy.config.http.cache.ignore_client_no_cache`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Origin Server Directives
+------------------------
+
+By default, Traffic Server does *not* cache objects with the following
+**response headers**:
+
+-  ``Cache-Control: no-store`` header
+-  ``Cache-Control: private`` header
+-  ``WWW-Authenticate``: header
+
+   To configure Traffic Server to ignore ``WWW-Authenticate`` headers,
+   refer to `Configuring Traffic Server to Ignore WWW-Authenticate Headers`_.
+
+-  ``Set-Cookie``: header
+-  ``Cache-Control: no-cache`` headers
+
+   To configure Traffic Server to ignore ``no-cache`` headers, refer to
+   `Configuring Traffic Server to Ignore Server no-cache Headers`_.
+
+-  ``Expires``: header with value of 0 (zero) or a past date
+
+Configuring Traffic Server to Ignore Server no-cache Headers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default, Traffic Server strictly observes ``Cache-Control: no-cache``
+directives. A response from an origin server with a ``no-cache`` header
+is not stored in the cache and any previous copy of the object in the
+cache is removed. If you configure Traffic Server to ignore ``no-cache``
+headers, then Traffic Server also ignores ``no-store`` headers. The
+default behavior of observing ``no-cache`` directives is appropriate
+in most cases.
+
+To configure Traffic Server to ignore server ``no-cache`` headers
+
+#. Edit the variable :ts:cv:`proxy.config.http.cache.ignore_server_no_cache`
+
+#. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Configuring Traffic Server to Ignore WWW-Authenticate Headers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default, Traffic Server does not cache objects that contain
+``WWW-Authenticate`` response headers. The ``WWW-Authenticate`` header
+contains authentication parameters the client uses when preparing the
+authentication challenge response to an origin server.
+
+When you configure Traffic Server to ignore origin server
+``WWW-Authenticate`` headers, all objects with ``WWW-Authenticate``
+headers are stored in the cache for future requests. However, the
+default behavior of not caching objects with ``WWW-Authenticate``
+headers is appropriate in most cases. Only configure Traffic Server to
+ignore server ``WWW-Authenticate`` headers if you are knowledgeable
+about HTTP 1.1.
+
+To configure Traffic Server to ignore server ``WWW-Authenticate``
+headers
+
+#. Edit the variable :ts:cv:`proxy.config.http.cache.ignore_authentication`
+
+#. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Configuration Directives
+------------------------
+
+In addition to client and origin server directives, Traffic Server
+responds to directives you specify through configuration options and
+files.
+
+You can configure Traffic Server to do the following:
+
+-  *Not* cache any HTTP objects (refer to `Disabling HTTP Object Caching`_).
+-  Cache **dynamic content** - that is, objects with URLs that end in
+   ``.asp`` or contain a question mark (``?``), semicolon
+   (**``;``**), or **``cgi``**. For more information, refer to `Caching Dynamic Content`_.
+-  Cache objects served in response to the ``Cookie:`` header (refer to
+   `Caching Cookied Objects`_.
+-  Observe ``never-cache`` rules in the :file:`cache.config` file.
+
+Disabling HTTP Object Caching
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default, Traffic Server caches all HTTP objects except those for
+which you have set ``never-cache`` as :ref:`action rules <cache-config-format-action>`
+in the :file:`cache.config` file. You can disable HTTP object
+caching so that all HTTP objects are served directly from the origin
+server and never cached, as detailed below.
+
+To disable HTTP object caching manually
+
+1. Set the variable :ts:cv:`proxy.config.http.enabled` to ``0``.
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Caching Dynamic Content
+~~~~~~~~~~~~~~~~~~~~~~~
+
+A URL is considered **dynamic** if it ends in **``.asp``** or contains a
+question mark (``?``), a semicolon (``;``), or ``cgi``. By
+default, Traffic Server caches dynamic content. You can configure the
+system to ignore dyanamic looking content, although this is recommended
+only if the content is *truely* dyanamic, but fails to advertise so with
+appropriate ``Cache-Control`` headers.
+
+To configure Traffic Server's cache behaviour in regard to dynamic
+content
+
+1. Edit the following variable in :file:`records.config`
+
+   -  :ts:cv:`proxy.config.http.cache.cache_urls_that_look_dynamic`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Caching Cookied Objects
+~~~~~~~~~~~~~~~~~~~~~~~
+
+.. XXX This should be extended to xml as well!
+
+By default, Traffic Server caches objects served in response to requests
+that contain cookies. This is true for all types of objects except for
+text. Traffic Server does not cache cookied text content because object
+headers are stored along with the object, and personalized cookie header
+values could be saved with the object. With non-text objects, it is
+unlikely that personalized headers are delivered or used.
+
+You can reconfigure Traffic Server to:
+
+-  *Not* cache cookied content of any type.
+-  Cache cookied content that is of image type only.
+-  Cache all cookied content regardless of type.
+
+To configure how Traffic Server caches cookied content
+
+1. Edit the variable :ts:cv:`proxy.config.http.cache.cache_responses_to_cookies`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Forcing Object Caching
+======================
+
+You can force Traffic Server to cache specific URLs (including dynamic
+URLs) for a specified duration, regardless of ``Cache-Control`` response
+headers.
+
+To force document caching
+
+1. Add a rule for each URL you want Traffic Server to pin to the cache
+   :file:`cache.config`::
+
+       url_regex=^https?://(www.)?apache.org/dev/ ttl-in-cache=6h
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Caching HTTP Alternates
+=======================
+
+Some origin servers answer requests to the same URL with a variety of
+objects. The content of these objects can vary widely, according to
+whether a server delivers content for different languages, targets
+different browsers with different presentation styles, or provides
+different document formats (HTML, XML). Different versions of the same
+object are termed **alternates** and are cached by Traffic Server based
+on ``Vary`` response headers. You can specify additional request and
+response headers for specific ``Content-Type``\s that Traffic Server
+will identify as alternates for caching. You can also limit the number
+of alternate versions of an object allowed in the cache.
+
+Configuring How Traffic Server Caches Alternates
+------------------------------------------------
+
+To configure how Traffic Server caches alternates, follow the steps
+below
+
+1. Edit the following variables
+
+   -  :ts:cv:`proxy.config.http.cache.enable_default_vary_headers`
+   -  :ts:cv:`proxy.config.http.cache.vary_default_text`
+   -  :ts:cv:`proxy.config.http.cache.vary_default_images`
+   -  :ts:cv:`proxy.config.http.cache.vary_default_other`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. note::
+
+   If you specify ``Cookie`` as the header field on which to vary
+   in the above variables, make sure that the variable
+   :ts:cv:`proxy.config.http.cache.cache_responses_to_cookies`
+   is set appropriately.
+
+Limiting the Number of Alternates for an Object
+-----------------------------------------------
+
+You can limit the number of alternates Traffic Server can cache per
+object (the default is 3).
+
+.. important::
+
+   Large numbers of alternates can affect Traffic Server
+   cache performance because all alternates have the same URL. Although
+   Traffic Server can look up the URL in the index very quickly, it must
+   scan sequentially through available alternates in the object store.
+
+   To limit the number of alternates
+
+   #. Edit the variable :ts:cv:`proxy.config.cache.limits.http.max_alts`
+   #. Run the command :option:`traffic_line -x` to apply the configuration changes.
+
+
+.. _using-congestion-control:
+
+Using Congestion Control
+========================
+
+The **Congestion Control** option enables you to configure Traffic
+Server to stop forwarding HTTP requests to origin servers when they
+become congested. Traffic Server then sends the client a message to
+retry the congested origin server later.
+
+To use the **Congestion Control** option, you must perform the following
+tasks:
+
+#. Set the variable :ts:cv:`proxy.config.http.congestion_control.enabled` to ``1``
+
+   -  Create rules in the :file:`congestion.config` file to specify:
+   -  which origin servers Traffic Server tracks for congestion
+   -  the timeouts Traffic Server uses, depending on whether a server is
+      congested
+   -  the page Traffic Server sends to the client when a server becomes
+      congested
+   -  if Traffic Server tracks the origin servers per IP address or per
+      hostname
+
+#. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. _transaction-buffering-control:
+
+Using Transaction Buffering Control
+===================================
+
+By default I/O operations are run at full speed, as fast as either Traffic Server, the network, or the cache can go.
+This can be problematic for large objects if the client side connection is significantly slower. In such cases the
+content will be buffered in ram while waiting to be sent to the client. This could potentially also happen for ``POST``
+requests if the client connection is fast and the origin server connection slow. If very large objects are being used
+this can cause the memory usage of Traffic Server to become `very large
+<https://issues.apache.org/jira/browse/TS-1496>`_.
+
+This problem can be ameloriated by controlling the amount of buffer space used by a transaction. A high water and low
+water mark are set in terms of bytes used by the transaction. If the buffer space in use exceeds the high water mark,
+the connection is throttled to prevent additional external data from arriving. Internal operations continue to proceed
+at full speed until the buffer space in use drops below the low water mark and external data I/O is re-enabled.
+
+Although this is intended primarily to limit the memory usage of Traffic Server it can also serve as a crude rate
+limiter by setting a buffer limit and then throttling the client side connection either externally or via a transform.
+This will cause the connection to the origin server to be limited to roughly the client side connection speed.
+
+Traffic Server does network I/O in large chunks (32K or so) and therefore the granularity of transaction buffering
+control is limited to a similar precision.
+
+The buffer size calculations include all elements in the transaction, including any buffers associated with :ref:`transform plugins <transform-plugin>`.
+
+Transaction buffering control can be enabled globally by using configuration variables or by :c:func:`TSHttpTxnConfigIntSet` in a plugin.
+
+================= ================================================== ================================================
+Value             Variable                                           :c:func:`TSHttpTxnConfigIntSet` key
+================= ================================================== ================================================
+Enable buffering  :ts:cv:`proxy.config.http.flow_control.enabled`    :c:data:`TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED`
+Set high water    :ts:cv:`proxy.config.http.flow_control.high_water` :c:data:`TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER`
+Set low water     :ts:cv:`proxy.config.http.flow_control.low_water`  :c:data:`TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER`
+================= ================================================== ================================================
+
+Be careful to always have the low water mark equal or less than the high water mark. If you set only one, the other will
+be set to the same value.
+
+If using :c:func:`TSHttpTxnConfigIntSet`, it must be called no later than :c:data:`TS_HTTP_READ_RESPONSE_HDR_HOOK`.
+
+.. _reducing-origin-server-requests-avoiding-the-thundering-herd:
+
+Reducing Origin Server Requests (Avoiding the Thundering Herd)
+==============================================================
+
+When an object can not be served from cache, the request will be proxied to the origin server. For a popular object,
+this can result in many near simultaneous requests to the origin server, potentially overwhelming it or associated
+resources. There are several features in Traffic Server that can be used to avoid this scenario.
+
+Read While Writer
+-----------------
+When Traffic Server goes to fetch something from origin, and upon receiving the response, any number of clients can be allowed to start serving the partially filled cache object once background_fill_completed_threshold % of the object has been received. The difference is that Squid allows this as soon as it goes to origin, whereas ATS can not do it until we get the complete response header. The reason for this is that we make no distinction between cache refresh, and cold cache, so we have no way to know if a response is going to be cacheable, and therefore allow read-while-writer functionality.
+
+The configurations necessary to enable this in ATS are:
+
+|   CONFIG :ts:cv:`proxy.config.cache.enable_read_while_writer` ``INT 1``
+|   CONFIG :ts:cv:`proxy.config.http.background_fill_active_timeout` ``INT 0``
+|   CONFIG :ts:cv:`proxy.config.http.background_fill_completed_threshold` ``FLOAT 0.000000``
+|   CONFIG :ts:cv:`proxy.config.cache.max_doc_size` ``INT 0`` 
+
+All four configurations are required, for the following reasons:
+
+-  enable_read_while_writer turns the feature on. It's off (0) by default
+-  The background fill feature should be allowed to kick in for every possible request. This is necessary, in case the writer ("first client session") goes away, someone needs to take over the session. Hence, you should set the background fill timeouts and threshold to zero; this assures they never times out and always is allowed to kick in. 
+-  The proxy.config.cache.max_doc_size should be unlimited (set to 0), since the object size may be unknown, and going over this limit would cause a disconnect on the objects being served.
+
+Once all this enabled, you have something that is very close, but not quite the same, as Squid's Collapsed Forwarding.
+
+
+
+.. _fuzzy-revalidation:
+
+Fuzzy Revalidation
+------------------
+Traffic Server can be set to attempt to revalidate an object before it becomes stale in cache. :file:`records.config` contains the settings:
+
+|   CONFIG :ts:cv:`proxy.config.http.cache.fuzz.time` ``INT 240``
+|   CONFIG :ts:cv:`proxy.config.http.cache.fuzz.min_time` ``INT 0``
+|   CONFIG :ts:cv:`proxy.config.http.cache.fuzz.probability` ``FLOAT 0.005``
+
+For every request for an object that occurs "fuzz.time" before (in the example above, 240 seconds) the object is set to become stale, there is a small
+chance (fuzz.probability == 0.5%) that the request will trigger a revalidation request to the origin. For objects getting a few requests per second, this would likely not trigger, but then this feature is not necessary anyways since odds are only 1 or a small number of connections would hit origin upon objects going stale. The defaults are a good compromise, for objects getting roughly 4 requests / second or more, it's virtually guaranteed to trigger a revalidate event within the 240s. These configs are also overridable per remap rule or via a plugin, so can be adjusted per request if necessary.  
+
+Note that if the revalidation occurs, the requested object is no longer available to be served from cache.  Subsequent
+requests for that object will be proxied to the origin. 
+
+Finally, the fuzz.min_time is there to be able to handle requests with a TTL less than fuzz.time – it allows for different times to evaluate the probability of revalidation for small TTLs and big TTLs. Objects with small TTLs will start "rolling the revalidation dice" near the fuzz.min_time, while objects with large TTLs would start at fuzz.time. A logarithmic like function between determines the revalidation evaluation start time (which will be between fuzz.min_time and fuzz.time). As the object gets closer to expiring, the window start becomes more likely. By default this setting is not enabled, but should be enabled anytime you have objects with small TTLs. Note that this option predates overridable configurations, so you can achieve something similar with a plugin or remap.config conf_remap.so configs.
+
+These configurations are similar to Squid's refresh_stale_hit configuration option.
+
+
+Open Read Retry Timeout
+-----------------------
+
+The open read retry configurations attempt to reduce the number of concurrent requests to the origin for a given object. While an object is being fetched from the origin server, subsequent requests would wait open_read_retry_time milliseconds before checking if the object can be served from cache. If the object is still being fetched, the subsequent requests will retry max_open_read_retries times. Thus, subsequent requests may wait a total of (max_open_read_retries x open_read_retry_time) milliseconds before establishing an origin connection of its own. For instance, if they are set to 5 and 10 respectively, connections will wait up to 50ms for a response to come back from origin from a previous request, until this request is allowed through.
+
+These settings are inappropriate when objects are uncacheable. In those cases, requests for an object effectively become serialized. The subsequent requests would await at least open_read_retry_time milliseconds before being proxies to the origin.
+
+Similarly, this setting should be used in conjunction with Read While Writer for big (those that take longer than (max_open_read_retries x open_read_retry_time) milliseconds to transfer) cacheable objects. Without the read-while-writer settings enabled, while the initial fetch is ongoing, not only would subsequent requests be delayed by the maximum time, but also, those requests would result in another request to the origin server.
+
+Since ATS now supports setting these settings per-request or remap rule, you can configure this to be suitable for your setup much more easily.
+
+The configurations are (with defaults):
+
+|   CONFIG :ts:cv:`proxy.config.http.cache.max_open_read_retries` ``INT -1``
+|   CONFIG :ts:cv:`proxy.config.http.cache.open_read_retry_time` ``INT 10``
+
+The default means that the feature is disabled, and every connection is allowed to go to origin instantly. When enabled, you will try max_open_read_retries times, each with a open_read_retry_time timeout.
diff --git a/doc/admin/index.en.rst b/doc/admin/index.en.rst
new file mode 100644
index 00000000..3b1229b7
--- /dev/null
+++ b/doc/admin/index.en.rst
@@ -0,0 +1,319 @@
+.. _admin-guide:
+
+Administrators' Guide
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+Apache Traffic Server™ speeds Internet access, enhances website
+performance, and delivers unprecedented web hosting capabilities.
+
+This chapter discusses how:
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   getting-started.en
+   http-proxy-caching.en
+   reverse-proxy-http-redirects.en
+   forward-proxy.en
+   transparent-proxy.en
+   explicit-proxy-caching.en
+   session-protocol.en
+   hierachical-caching.en
+   configuring-cache.en
+   monitoring-traffic.en
+   configuring-traffic-server.en
+   cluster-howto.en
+   security-options.en
+   working-log-files.en
+   event-logging-formats.en
+   traffic-server-error-messages.en
+   performance-tuning.en
+   faqs.en
+
+
+What Is Apache Traffic Server?
+==============================
+
+Global data networking has become part of everyday life: Internet users
+request billions of documents and terabytes of data, on a daily basis,
+to and from all parts of the world. Information is free, abundant, and
+accessible. Unfortunately, global data networking can also be a
+nightmare for IT professionals as they struggle with overloaded servers
+and congested networks. It can be challenging to consistently and
+reliably accommodate society’s growing data demands.
+
+Traffic Server is a high-performance web proxy cache that improves
+network efficiency and performance by caching frequently-accessed
+information at the edge of the network. This brings content physically
+closer to end users, while enabling faster delivery and reduced
+bandwidth use. Traffic Server is designed to improve content delivery
+for enterprises, Internet service providers (ISPs), backbone providers,
+and large intranets by maximizing existing and available bandwidth.
+
+Traffic Server Deployment Options
+=================================
+
+To best suit your needs, Traffic Server can be deployed in several ways:
+
+-  As a web proxy cache
+-  As a reverse proxy
+-  In a cache hierarchy
+
+The following sections provide a summary of these Traffic Server
+deployment options. Please keep in mind that with every of these options
+Traffic Server can be run as a *single instance*, or as a *multi-node
+cluster*.
+
+Traffic Server as a Web Proxy Cache
+-----------------------------------
+
+As a web proxy cache, Traffic Server receives user requests for web
+content as those requests travel to the destined web server (origin
+server). If Traffic Server contains the requested content, then it
+serves the content directly. If the requested content is not available
+from cache, then Traffic Server acts as a proxy: it obtains the content
+from the origin server on the user’s behalf and also keeps a copy to
+satisfy future requests.
+
+Traffic Server provides explicit proxy caching, in which the user’s
+client software must be configured to send requests directly to Traffic
+Server. Explicit proxy caching is described in the :ref:`explicit-proxy-caching`
+chapter.
+
+
+Traffic Server as a Reverse Proxy
+---------------------------------
+
+As a reverse proxy, Traffic Server is configured to be the origin server
+to which the user is trying to connect (typically, the origin server’s
+advertised hostname resolves to Traffic Server, which acts as the real
+origin server). The reverse proxy feature is also called server
+acceleration. Reverse proxy is described in more detail in :ref:`reverse-proxy-and-http-redirects`.
+
+Traffic Server in a Cache Hierarchy
+-----------------------------------
+
+Traffic Server can participate in flexible cache hierarchies, in which
+Internet requests not fulfilled from one cache are routed to other
+regional caches, thereby leveraging the contents and proximity of nearby
+caches. In a hierarchy of proxy servers, Traffic Server can act either
+as a parent or a child cache to other Traffic Server systems or to
+similar caching products.
+
+Traffic Server supports ICP (Internet Cache Protocol) peering.
+Hierarchical caching is described in more detail in :ref:`hierarchical-caching`.
+
+Deployment Limitations
+----------------------
+
+There's a number of deployment options that Traffic Server does not support right out
+of the box. Such funcionality may be implemented in a plugin, but in some cases
+Traffic Server's internal APIs or architectural restrictions won't make it easy:
+
+* Load Balancing - note that there is an experimental plugin for this: :ref:`balancer-plugin`.
+
+Traffic Server Components
+=========================
+
+Traffic Server consists of several components that work together to form
+a web proxy cache you can easily monitor and configure. These main
+components are described below.
+
+The Traffic Server Cache
+------------------------
+
+The Traffic Server cache consists of a high-speed object database called
+the object store. The object store indexes objects according to URLs and
+associated headers. Using sophisticated object management, the object
+store can cache alternate versions of the same object (perhaps in a
+different language or encoding type). It can also efficiently store very
+small and very large objects, thereby minimizing wasted space. When the
+cache is full, Traffic Server removes stale data to ensure that the most
+requested objects are readily available and fresh.
+
+Traffic Server is designed to tolerate total disk failures on any of the
+cache disks. If the disk fails completely, then Traffic Server marks the
+entire disk as corrupt and continues to use remaining disks. If all of
+the cache disks fail, then Traffic Server switches to proxy-only mode.
+You can partition the cache to reserve a certain amount of disk space
+for storing data for specific protocols and origin servers. For more
+information about the cache, see :ref:`configuring-the-cache`.
+
+The RAM Cache
+-------------
+
+Traffic Server maintains a small RAM cache that contains extremely
+popular objects. This RAM cache serves the most popular objects as fast
+as possible and reduces load on disks, especially during temporary
+traffic peaks. You can configure the RAM cache size to suit your needs;
+for detailed information, refer to :ref:`changing-the-size-of-the-ram-cache`.
+
+The Host Database
+-----------------
+
+The Traffic Server host database stores the domain name server (DNS)
+entries of origin servers to which Traffic Server connects to fulfill
+user requests. This information is used to adapt future protocol
+interactions and optimize performance. Along with other information, the
+host database tracks:
+
+-  DNS information (for fast conversion of hostnames to IP addresses)
+-  The HTTP version of each host (so advanced protocol features can be
+   used with hosts running modern servers)
+-  Host reliability and availability information (so users will not wait
+   for servers that are not running)
+
+The DNS Resolver
+----------------
+
+Traffic Server includes a fast, asynchronous DNS resolver to streamline
+conversion of hostnames to IP addresses. Traffic Server implements the
+DNS resolver natively by directly issuing DNS command packets rather
+than relying on slower, conventional resolver libraries. Since many DNS
+queries can be issued in parallel and a fast DNS cache maintains popular
+bindings in memory, DNS traffic is reduced.
+
+Traffic Server Processes
+------------------------
+
+Traffic Server contains three processes that work together to serve
+requests and manage/control/monitor the health of the system. The three
+processes are described below:
+
+-  The :program:`traffic_server` process is the transaction processing engine
+   of Traffic Server. It is responsible for accepting connections,
+   processing protocol requests, and serving documents from the cache or
+   origin server.
+
+-  The :program:`traffic_manager` process is the command and control facility
+   of the Traffic Server, responsible for launching, monitoring, and
+   reconfiguring the :program:`traffic_server` process. The :program:`traffic_manager`
+   process is also responsible for the proxy autoconfiguration port, the
+   statistics interface, cluster administration, and virtual IP
+   failover.
+
+   If the :program:`traffic_manager` process detects a :program:`traffic_server`
+   process failure, it instantly restarts the process but also maintains
+   a connection queue of all incoming requests. All incoming connections
+   that arrive in the several seconds before full server restart are
+   saved in the connection queue and processed in first-come,
+   first-served order. This connection queueing shields users from any
+   server restart downtime.
+
+-  The :program:`traffic_cop` process monitors the health of both the
+   :program:`traffic_server` and :program:`traffic_manager` processes. The
+   :program:`traffic_cop` process periodically (several times each minute)
+   queries the :program:`traffic_server` and :program:`traffic_manager` process by
+   issuing heartbeat requests to fetch synthetic web pages. In the event
+   of failure (if no response is received within a timeout interval or
+   if an incorrect response is received), :program:`traffic_cop` restarts the
+   :program:`traffic_manager` and :program:`traffic_server` processes.
+
+The figure below illustrates the three Traffic Server processes.
+
+.. figure:: ../static/images/admin/process.jpg
+   :align: center
+   :alt: Illustration of the three Traffic Server Processes
+
+   Illustration of the three Traffic Server Processes
+
+Administration Tools
+--------------------
+
+Traffic Server offers the following administration options:
+
+-  The Traffic Line command-line interface is a text-based interface
+   from which you can monitor Traffic Server performance and network
+   traffic, as well as configure the Traffic Server system. From Traffic
+   Line, you can execute individual commands or script a series of
+   commands in a shell.
+-  The Traffic Shell command-line interface is an additional
+   command-line tool that enables you to execute individual commands
+   that monitor and configure the Traffic Server system.
+-  Various configuration files enable you to configure Traffic Server
+   through a simple file-editing and signal-handling interface. Any
+   changes you make through Traffic Line or Traffic Shell are
+   automatically made to the configuration files as well.
+-  Finally there is a clean C API which can be put to good use from a
+   multitude of languages. The Traffic Server Admin Client demonstrates
+   this for Perl.
+
+Traffic Analysis Options
+========================
+
+Traffic Server provides several options for network traffic analysis and
+monitoring:
+
+-  Traffic Line and Traffic Shell enable you to collect and process
+   statistics obtained from network traffic information.
+
+-  Transaction logging enables you to record information (in a log file)
+   about every request Traffic Server receives and every error it
+   detects. By analyzing the log files, you can determine how many
+   clients used the Traffic Server cache, how much information each of
+   them requested, and what pages were most popular. You can also see
+   why a particular transaction was in error and what state the Traffic
+   Server was in at a particular time; for example, you can see that
+   Traffic Server was restarted or that cluster communication timed out.
+
+   Traffic Server supports several standard log file formats, such as
+   Squid and Netscape, and its own custom format. You can analyze the
+   standard format log files with off-the-shelf analysis packages. To
+   help with log file analysis, you can separate log files so that they
+   contain information specific to protocol or hosts.
+
+Traffic analysis options are described in more detail in :ref:`monitoring-traffic`.
+
+Traffic Server logging options are described in :ref:`working-with-log-files`.
+
+Traffic Server Security Options
+===============================
+
+Traffic Server provides numerous options that enable you to establish
+secure communication between the Traffic Server system and other
+computers on the network. Using the security options, you can do the
+following:
+
+-  Control client access to the Traffic Server proxy cache.
+-  Configure Traffic Server to use multiple DNS servers to match your
+   site's security configuration. For example, Traffic Server can use
+   different DNS servers, depending on whether it needs to resolve
+   hostnames located inside or outside a firewall. This enables you to
+   keep your internal network configuration secure while continuing to
+   provide transparent access to external sites on the Internet.
+-  Configure Traffic Server to verify that clients are authenticated
+   before they can access content from the Traffic Server cache.
+-  Secure connections in reverse proxy mode between a client and Traffic
+   Server, and Traffic Server and the origin server, using the SSL
+   termination option.
+-  Control access via SSL (Secure Sockets Layer).
+
+Traffic Server security options are described in more detail in
+:ref:`security-options`.
+
+Tuning Traffic Server
+=====================
+
+Finally this last chapter on :ref:`performance-tuning` discusses the vast
+number of options that allow to optimally tune Apache Traffic Server for
+maximum performance.
diff --git a/doc/admin/monitoring-traffic.en.rst b/doc/admin/monitoring-traffic.en.rst
new file mode 100644
index 00000000..40820c2a
--- /dev/null
+++ b/doc/admin/monitoring-traffic.en.rst
@@ -0,0 +1,104 @@
+
+.. _monitoring-traffic:
+
+Monitoring Traffic
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Traffic Server provides several options for monitoring system
+performance and analyzing network traffic.
+
+.. toctree::
+   :maxdepth: 2
+
+Traffic Server Monitoring Tools
+===============================
+
+Traffic Server provides the following tools to monitor system
+performance and analyze network traffic:
+
+-  Traffic Server can send email that's triggered by alarms that signal
+   any detected failure conditions; refer to `Working with Traffic Manager Alarms`_.
+-  The Traffic Line command-line interface provides an alternative
+   method of viewing Traffic Server performance and network traffic
+   information; refer to `Viewing Statistics from Traffic Line`_.
+-  The Traffic Shell command-line tool provides yet another alternative
+   method of viewing Traffic Server performance and network traffic
+   information; refer to `Starting Traffic Shell <../getting-started#StartTrafficShell>`_.
+
+.. XXX: *someone* seems to have deleted the traffic_shell docs, I'm suspecting igalic, btw. // igalic
+
+Working with Traffic Manager Alarms
+===================================
+
+Traffic Server signals an alarm when it detects a problem. For example,
+the space allocated to event logs could be full or Traffic Server may
+not be able to write to a configuration file.
+
+Configuring Traffic Server to Email Alarms
+------------------------------------------
+
+To configure Traffic Server to send an email to a specific address
+whenever an alarm occurs, follow the steps below:
+
+1. In the :file:`records.config` file
+2. Set the :ts:cv:`proxy.config.alarm_email` variable to the email address alarms will be routed to.
+3. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Using a Script File for Alarms
+------------------------------
+
+Alarm messages are built into Traffic Server - you cannot change them.
+However, you can write a script file to execute certain actions when an
+alarm is signaled. Traffic Server provides a sample script file named
+``example_alarm_bin.sh`` in the ``bin`` directory; simply modify the
+file to suit your needs.
+
+Viewing Statistics from Traffic Line
+====================================
+
+You can use the Traffic Line command-line interface to view statistics
+about Traffic Server performance and web traffic. In addition to viewing
+statistics, you can also configure, stop, and restart the Traffic Server
+system. For additional information, refer to :ref:`configure-using-traffic-line`
+and :ref:`traffic-line-commands`. You can view
+specific information about a Traffic Server node or cluster by
+specifying the variable that corresponds to the statistic you want to
+see.
+
+**To view a statistic**, enter the following command:::
+
+        traffic_line -r variable
+
+where ``variable`` is the variable representing the information you
+want to view. For a list of variables you can specify, refer to :ref:`Traffic
+Line Variables <traffic-line-performance-statistics>`.
+
+For example, the following command displays the document hit rate for
+the Traffic Server node:::
+
+     traffic_line -r proxy.node.cache_hit_ratio
+
+If the Traffic Server ``bin`` directory is not in your path, then
+prepend the Traffic Line command with ``./`` (for example:
+:option:`traffic_line -r` ``variable``).
+
+
+.. XXX: We're missing docs on how to use traffic_top here.
diff --git a/doc/admin/performance-tuning.en.rst b/doc/admin/performance-tuning.en.rst
new file mode 100644
index 00000000..1d9efc02
--- /dev/null
+++ b/doc/admin/performance-tuning.en.rst
@@ -0,0 +1,54 @@
+
+.. _performance-tuning:
+
+Performance Tuning
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+.. toctree::
+   :maxdepth: 2
+
+Before you start
+================
+
+There is no single option to that will guarantee maximum performance of
+Apache Traffic Server in every use-case. There are however numerous options
+that help tune its performance under different loads and in its - often
+vastly different - use-cases.
+
+Building Traffic Server
+=======================
+
+A lot of speed can be gained or lost depending on the way ATS is built.
+
+Tuning the Machine
+==================
+
+Operating Systems Options
+=========================
+
+Optimal Use of Memory
+=====================
+
+Tuning different Thread types
+=============================
+
+Tuning Plugin Execution
+=======================
diff --git a/doc/admin/reverse-proxy-http-redirects.en.rst b/doc/admin/reverse-proxy-http-redirects.en.rst
new file mode 100644
index 00000000..683e423a
--- /dev/null
+++ b/doc/admin/reverse-proxy-http-redirects.en.rst
@@ -0,0 +1,317 @@
+
+.. _reverse-proxy-and-http-redirects:
+
+Reverse Proxy and HTTP Redirects
+********************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+Reverse Proxy and HTTP Redirects
+================================
+
+As a reverse proxy cache, Traffic Server serves requests on behalf of
+origin servers. Traffic Server is configured in such a way that it
+appears to clients like a normal origin server.
+
+.. toctree::
+   :maxdepth: 2
+
+
+Understanding Reverse Proxy Caching
+===================================
+
+With **forward proxy caching**, Traffic Server handles web requests to
+distant origin servers on behalf of the clients requesting the content.
+**Reverse proxy caching** (also known as **server acceleration** or
+**virtual web hosting**) is different because Traffic Server acts as a
+proxy cache on behalf of the origin servers that store the content.
+Traffic Server is configured to be *the* origin server which the client
+is trying to connect to. In a typical scenario the advertised hostname
+of the origin server resolves to Traffic Server, which acts as the real
+origin server.
+
+Reverse Proxy Solutions
+-----------------------
+
+There are many ways to use Traffic Server as a reverse proxy. Below are
+a few example scenarios.
+
+You can use Traffic Server in reverse proxy mode to:
+
+-  Offload heavily-used origin servers
+-  Deliver content efficiently in geographically distant areas
+-  Provide security for origin servers that contain sensitive
+   information
+
+Offloading Heavily-Used Origin Servers
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Traffic Server can absorb requests to the main origin server and improve
+the speed & quality of web serving by reducing load and hot spots on
+backup origin servers. For example, a web hoster can maintain a scalable
+Traffic Server serving engine with a set of low-cost, low-performance,
+less-reliable PC origin servers as backup servers. In fact, a single
+Traffic Server can act as the virtual origin server for multiple backup
+origin servers, as shown in the figure below.
+
+.. figure:: ../static/images/admin/revproxy.jpg
+   :align: center
+   :alt: Traffic Server as reverse proxy for a pair of origin servers
+
+   Traffic Server as reverse proxy for a pair of origin servers
+
+Delivering Content in Geographically-Dispersed Areas
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Traffic Server can be used in reverse proxy mode to accelerate origin
+servers that provide content to areas not located within close
+geographical proximity. Caches are typically easier to manage and are
+more cost-effective than replicating data. For example, Traffic Server
+can be used as a mirror site on the far side of a trans-Atlantic link to
+serve users without having to fetch the request and content across
+expensive international connections. Unlike replication, for which
+hardware must be configured to replicate all data and to handle peak
+capacity, Traffic Server dynamically adjusts to optimally use the
+serving and storing capacity of the hardware. Traffic Server is also
+designed to keep content fresh automatically, thereby eliminating the
+complexity of updating remote origin servers.
+
+Providing Security for an Origin Server
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Traffic Server can be used in reverse proxy mode to provide security for
+an origin server. If an origin server contains sensitive information
+that you want to keep secure inside your firewall, then you can use a
+Traffic Server outside the firewall as a reverse proxy for that origin
+server. When outside clients try to access the origin server, the
+requests instead go to Traffic Server. If the desired content is *not*
+sensitive, then it can be served from the cache. If the content is
+sensitive and not cacheable, then Traffic Server obtains the content
+from the origin server (the firewall allows only Traffic Server access
+to the origin server). The sensitive content resides on the origin
+server, safely inside the firewall.
+
+How Does Reverse Proxy Work?
+----------------------------
+
+When a browser makes a request, it normally sends that request directly
+to the origin server. When Traffic Server is in reverse proxy mode, it
+intercepts the request before it reaches the origin server. Typically,
+this is done by setting up the DNS entry for the origin server (i.e.,
+the origin server's 'advertised' hostname) so it resolves to the Traffic
+Server IP address. When Traffic Server is configured as the origin
+server, the browser connects to Traffic Server rather than the origin
+server. For additional information, see `HTTP Reverse Proxy`_.
+
+.. note:: To avoid a DNS conflict, the origin server’s hostname and its advertised hostname must not be the same.
+
+HTTP Reverse Proxy
+==================
+
+In reverse proxy mode, Traffic Server serves HTTP requests on behalf of
+a web server. The figure below illustrates how Traffic Server in reverse
+proxy mode serves an HTTP request from a client browser.
+
+.. figure:: ../static/images/admin/httprvs.jpg
+   :align: center
+   :alt: HTTP reverse proxy
+
+   HTTP reverse proxy
+
+The figure above demonstrates the following steps:
+
+1. A client browser sends an HTTP request addressed to a host called
+   ``www.host.com`` on port 80. Traffic Server receives the request
+   because it is acting as the origin server (the origin server’s
+   advertised hostname resolves to Traffic Server).
+2. Traffic Server locates a map rule in the ``remap.config`` file and
+   remaps the request to the specified origin server (``realhost.com``).
+3. Traffic Server opens an HTTP connection to the origin server. (If the request is not able to be served from cache)
+4. If the request is a cache hit and the content is fresh, then Traffic
+   Server sends the requested object to the client from the cache.
+   Otherwise, Traffic Server obtains the requested object from the
+   origin server, sends the object to the client, and saves a copy in
+   its cache.
+
+To configure HTTP reverse proxy, you must perform the following tasks:
+
+-  Create mapping rules in the :file:`remap.config` file (refer to `Creating
+   Mapping Rules for HTTP Requests`_). ::
+
+      # remap.config
+      map http://www.host.com http://realhost.com
+
+-  Enable the reverse proxy option (refer to `Enabling HTTP Reverse Proxy`_).
+
+In addition to the tasks above, you can also `Setting Optional HTTP Reverse Proxy Options`_.
+
+Handling Origin Server Redirect Responses
+-----------------------------------------
+
+Origin servers often send redirect responses back to browsers
+redirecting them to different pages. For example, if an origin server is
+overloaded, then it might redirect browsers to a less loaded server.
+Origin servers also redirect when web pages that have moved to different
+locations. When Traffic Server is configured as a reverse proxy, it must
+readdress redirects from origin servers so that browsers are redirected
+to Traffic Server and *not* to another origin server.
+
+To readdress redirects, Traffic Server uses reverse-map rules. Unless
+you have :ts:cv:`proxy.config.url_remap.pristine_host_hdr` enabled
+(the default) you should generally set up a reverse-map rule for
+each map rule. To create reverse-map rules, refer to `Using Mapping
+Rules for HTTP Requests`_.
+
+Using Mapping Rules for HTTP Requests
+-------------------------------------
+
+Traffic Server uses two types of mapping rules for HTTP reverse proxy.
+
+map rule
+~~~~~~~~
+
+A **map rule** translates the URL in client requests into the URL where
+the content is located. When Traffic Server is in reverse proxy mode and
+receives an HTTP client request, it first constructs a complete request
+URL from the relative URL and its headers. Traffic Server then looks for
+a match by comparing the complete request URL with its list of target
+URLs in the :file:`remap.config` file.
+For the request URL to match a target URL, the following
+conditions must be true:
+
+-  The scheme of both URLs must be the same
+-  The host in both URLs must be the same. If the request URL contains
+   an unqualified hostname, then it will never match a target URL with a
+   fully-qualified hostname.
+-  The ports in both URLs must be the same. If no port is specified in a
+   URL, then the default port for the scheme of the URL is used.
+-  The path portion of the target URL must match a prefix of the request
+   URL path
+
+If Traffic Server finds a match, then it translates the request URL into
+the replacement URL listed in the map rule: it sets the host and path of
+the request URL to match the replacement URL. If the URL contains path
+prefixes, then Traffic Server removes the prefix of the path that
+matches the target URL path and substitutes it with the path from the
+replacement URL. If two mappings match a request URL, then Traffic
+Server applies the first mapping listed in the :file:`remap.config` file.
+
+reverse-map rule
+~~~~~~~~~~~~~~~~
+
+A **reverse-map rule** translates the URL in origin server redirect
+responses to point to Traffic Server so that clients are **redirected**
+to Traffic Server instead of accessing an origin server directly. For
+example, if there is a directory ``/pub`` on an origin server at
+``www.molasses.com`` and a client sends a request to that origin server
+for ``/pub``, then the origin server might reply with a redirect by
+sending the Header ``Location: http://www.test.com/pub/`` to let the
+client know that it was a directory it had requested, not a document (a
+common use of redirects is to normalize URLs so that clients can
+bookmark documents properly).
+
+Traffic Server uses ``reverse_map`` rules to prevent clients (that
+receive redirects from origin servers) from bypassing Traffic Server and
+directly accessing the origin servers. In many cases the client would be
+hitting a wall because ``realhost.com`` actually does not resolve for
+the client. (E.g.: Because it's running on a port shielded by a
+firewall, or because it's running on a non-routable LAN IP)
+
+Both map and reverse-map rules consist of a **target** (origin) URL and
+a **replacement** (destination) URL. In a **map rule**, the target URL
+points to Traffic Server and the replacement URL specifies where the
+original content is located. In a **reverse-map rule**, the target URL
+specifies where the original content is located and the replacement URL
+points to Traffic Server. Traffic Server stores mapping rules in the
+``remap.config`` file located in the Traffic Server ``config``
+directory.
+
+Creating Mapping Rules for HTTP Requests
+----------------------------------------
+
+To create mapping rules
+
+1. Enter the map and reverse-map rules into the :file:`remap.config` file
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Enabling HTTP Reverse Proxy
+---------------------------
+
+To enable HTTP reverse proxy, follow the steps below.
+
+1. Edit the following variable in :file:`records.config`
+
+   -  :ts:cv:`proxy.config.reverse_proxy.enabled`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Setting Optional HTTP Reverse Proxy Options
+-------------------------------------------
+
+Traffic Server provides several reverse proxy configuration options in
+:file:`records.config` that enable you to:
+
+-  Configure Traffic Server to retain the client host header information
+   in a request during translation (:ts:cv:`proxy.config.url_remap.pristine_host_hdr`)
+
+-  Configure Traffic Server to serve requests only to the origin servers
+   listed in the mapping rules. As a result, requests to origin servers
+   not listed in the mapping rules are not served. (:ts:cv:`proxy.config.url_remap.remap_required`)
+-  Specify an alternate URL to which incoming requests from older
+   clients (i.e., ones that do not provide ``Host`` headers) are
+   directed (:ts:cv:`proxy.config.header.parse.no_host_url_redirect`)
+
+Don't forget to run the command :option:`traffic_line -x` to apply the
+configuration changes.
+
+Redirecting HTTP Requests
+=========================
+
+You can configure Traffic Server to redirect HTTP requests without
+having to contact any origin servers. For example, if you redirect all
+requests for ``http://www.ultraseek.com`` to
+``http://www.server1.com/products/portal/search/``, then all HTTP
+requests for ``www.ultraseek.com`` go directly to
+``www.server1.com/products/portal/search``.
+
+You can configure Traffic Server to perform permanent or temporary
+redirects. **Permanent redirects** notify the browser of the URL change
+(by returning the HTTP status code **``301``**) so that the browser can
+update bookmarks. **Temporary redirects** notify the browser of the URL
+change for the current request only (by returning the HTTP status code
+**``307``** ).
+
+To set redirect rules
+
+1. For each redirect you want to set enter a mapping rule in the
+   :file:`remap.config` file
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Example
+-------
+
+The following permanently redirects all HTTP requests for
+``www.server1.com`` to ``www.server2.com``: ::
+
+    redirect http://www.server1.com http://www.server2.com
+
+
diff --git a/doc/admin/security-options.en.rst b/doc/admin/security-options.en.rst
new file mode 100644
index 00000000..3806d4fb
--- /dev/null
+++ b/doc/admin/security-options.en.rst
@@ -0,0 +1,228 @@
+.. _security-options:
+
+Security Options
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Traffic Server provides a number of security features.
+
+.. _controlling-client-access-to-cache:
+
+Controlling Client Access to the Proxy Cache
+============================================
+
+You can configure Traffic Server to allow only certain clients to use
+the proxy cache by editing a configuration file.
+
+#. Add a line in :file:`ip_allow.config` for each IP address or
+   range of IP addresses allowed to access Traffic Server.
+#. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. _configuring-dns-server-selection-split-dns:
+
+Configuring DNS Server Selection (Split DNS)
+============================================
+
+The **Split DNS** option enables you to configure Traffic Server to use
+multiple DNS servers, as dictated by your security requirements. For
+example, you might configure Traffic Server to use one set of DNS
+servers to resolve hostnames on your internal network, while allowing
+DNS servers outside the firewall to resolve hosts on the Internet. This
+maintains the security of your intranet, while continuing to provide
+direct access to sites outside your organization.
+
+To configure Split DNS, you must do the following:
+
+-  Specify the rules for performing DNS server selection based on the
+   destination domain, the destination host, or a URL regular
+   expression.
+-  Enable the **Split DNS** option.
+
+To do this, we
+
+#. Add rules to :file:`splitdns.config`.
+#. In :file:`records.config` set the variable
+   :ts:cv:`proxy.config.dns.splitDNS.enabled` to ``1`` to enable split DNS.
+#. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. _configuring-ssl-termination:
+
+Using SSL Termination
+=====================
+
+The Traffic Server **SSL termination** option enables you to secure
+connections in reverse proxy mode between a client and a Traffic Server
+and/or Traffic Server and an origin server.
+
+The following sections describe how to enable and configure the SSL
+termination option.
+
+-  Enable and configure SSL termination for client/Traffic Server
+   connections: :ref:`client-and-traffic-server-connections`
+-  Enable and configure SSL termination for Traffic Server/origin server
+   connections: :ref:`traffic-server-and-origin-server-connections`
+-  Enable and configure SSL termination for both client/Traffic Server
+   and Traffic Server/origin server connections:  :ref:`client-and-traffic-server-connections`
+   :ref:`traffic-server-and-origin-server-connections`, respectively.
+
+.. _client-and-traffic-server-connections:
+
+Client and Traffic Server Connections
+-------------------------------------
+
+The figure below illustrates communication between a client and Traffic
+Server (and between Traffic Server and an origin server) when the SSL
+termination option is enabled & configured for **client/Traffic
+Server connections only**.
+
+.. figure:: ../static/images/admin/ssl_c.jpg
+   :align: center
+   :alt: Client and Traffic Server communication using SSL termination
+
+   Client and Traffic Server communication using SSL termination
+
+The figure above depicts the following:
+
+#. The client sends an HTTPS request for content. Traffic Server receives the request and performs the SSL 'handshake' to authenticate the client (depending on the authentication options configured) and determine the encryption method that will be used. If the client is allowed access, then Traffic Server checks its cache for the requested content.  
+
+#. If the request is a cache hit and the content is fresh, then Traffic Server encrypts the content and sends it to the client. The client decrypts the content (using the method determined during the handshake) and displays it.
+
+#. If the request is a cache miss or cached content is stale, then Traffic Server communicates with the origin server via HTTP and obtains a plain text version of the content. Traffic Server saves the plain text version of the content in its cache, encrypts the content, and sends it to the client. The client decrypts and displays the content.
+
+To configure Traffic Server to use the SSL termination option for
+client/Traffic Server connections, you must do the following:
+
+-  Obtain and install an SSL server certificate from a recognized
+   certificate authority. The SSL server certificate contains
+   information that enables the client to authenticate Traffic Server
+   and exchange encryption keys.
+-  Configure SSL termination options:
+
+   -  Set the port number used for SSL communication using :ts:cv:`proxy.config.http.server_ports`.
+   -  Edit :file:`ssl_multicert.config` to specify the filename and location of the
+      SSL certificates and private keys.
+   -  (Optional) Configure the use of client certificates: Client
+      certificates are located on the client. If you configure Traffic
+      Server to require client certificates, then Traffic Server
+      verifies the client certificate during the SSL handshake that
+      authenticates the client. If you configure Traffic Server to *not*
+      require client certificates, then access to Traffic Server is
+      managed through other Traffic Server options that have been set
+      (such as rules in :file:`ip_allow.config`).
+   -  (Optional) Configure the use of Certification Authorities (CAs).
+      CAs add security by verifying the identity of the person
+      requesting a certificate.
+
+In order to accomplish this, we
+
+#. Edit the following variables in the :ref:`records-config-ssl-termination` section of
+   :file:`records.config`
+
+   -  :ts:cv:`proxy.config.http.server_ports`
+   -  :ts:cv:`proxy.config.ssl.client.certification_level`
+   -  :ts:cv:`proxy.config.ssl.server.cert.path`
+   -  :ts:cv:`proxy.config.ssl.server.private_key.path`
+   -  :ts:cv:`proxy.config.ssl.CA.cert.path`
+
+#. Run the command :option:`traffic_line -L` to restart Traffic Server on the
+   local node or :option:`traffic_line -M` to restart Traffic Server on all
+   the nodes in a cluster.
+
+
+.. This numbering is ridiculous.
+
+.. _traffic-server-and-origin-server-connections:
+
+Traffic Server and Origin Server Connections
+--------------------------------------------
+
+The figure below illustrates communication between Traffic Server and an
+origin server when the SSL termination option is enabled for **Traffic
+Server/origin server connections**.
+
+.. figure:: ../static/images/admin/ssl_os.jpg
+   :align: center
+   :alt: Traffic Server and origin server communication using SSL termination
+
+   Traffic Server and origin server communication using SSL termination
+
+The figure above depicts the following:
+
+**Step 1:** If a client request is a cache miss or is stale, then
+Traffic Server sends an HTTPS request for the content to the origin
+server. The origin server receives the request and performs the SSL
+handshake to authenticate Traffic Server and determine the encryption
+method to be used.
+
+**Step 2:** If Traffic Server is allowed access, then the origin server
+encrypts the content and sends it to Traffic Server, where it is
+decrypted (using the method determined during the handshake). A plain
+text version of the content is saved in the cache.
+
+**Step 3:** If SSL termination is enabled for client /Traffic Server
+connections, then Traffic Server re-encrypts the content and sends it to
+the client via HTTPS, where it is decrypted and displayed. If SSL
+termination is not enabled for client/Traffic Server connections, then
+Traffic Server sends the plain text version of the content to the client
+via HTTP.
+
+To configure Traffic Server to use the SSL termination option for
+Traffic Server and origin server connections, you must do the following:
+
+-  Obtain and install an SSL client certificate from a recognized
+   certificate authority. The SSL client certificate contains
+   information that allows the origin server to authenticate Traffic
+   Server (the client certificate is optional).
+-  Configure SSL termination options:
+-  Enable the SSL termination option.
+
+   -  Set the port number used for SSL communication.
+   -  Specify the filename and location of the SSL client certificate
+      (if you choose to use a client certificate).
+   -  Specify the filename and location of the Traffic Server private
+      key (if the private key is not located in the client certificate
+      file). Traffic Server uses its private key during the SSL
+      handshake to decrypt the session encryption keys. The private key
+      must be stored and protected against theft.
+   -  Configure the use of CAs. CAs allow the Traffic Server that's
+      acting as a client to verify the identity of the server with which
+      it is communicating, thereby enabling exchange of encryption keys.
+
+In order to accomplish this, we:
+
+.. This numbering is ridiculous. I need to re-read this doc with a fresh mind and re(number|order) it.
+
+1. Edit the following variables in the :ref:`records-config-ssl-termination` section of
+   :file:`records.config`:
+
+   -  :ts:cv:`proxy.config.http.server_ports`
+   -  :ts:cv:`proxy.config.ssl.client.verify.server`
+   -  :ts:cv:`proxy.config.ssl.client.cert.filename`
+   -  :ts:cv:`proxy.config.ssl.client.cert.path`
+   -  :ts:cv:`proxy.config.ssl.client.private_key.filename`
+   -  :ts:cv:`proxy.config.ssl.client.private_key.path`
+   -  :ts:cv:`proxy.config.ssl.client.CA.cert.filename`
+   -  :ts:cv:`proxy.config.ssl.client.CA.cert.path`
+
+2. Run the command :option:`traffic_line -L` to restart Traffic Server on the
+   local node or :option:`traffic_line -M` to restart Traffic Server on all
+   the nodes in a cluster.
+
diff --git a/doc/admin/session-protocol.en.rst b/doc/admin/session-protocol.en.rst
new file mode 100644
index 00000000..84d7040f
--- /dev/null
+++ b/doc/admin/session-protocol.en.rst
@@ -0,0 +1,55 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. _session-protocol:
+
+Session Protocol
+****************
+
+Traffic Server supports some session level protocols in place or on
+top of HTTP. These can be provided by a plugin
+(:ref:`see <new-protocol-plugins>`) or be one that is supported
+directly by Traffic Server. Currently the
+`SPDY <http://www.chromium.org/spdy>`_ protocol is the only one current
+supported but it is planned to support HTTP 2 when that is finalized.
+
+Session protocols are specified by explicit names, based on the `NPN <https://technotes.googlecode.com/git/nextprotoneg.html>`_ names. The core supported names are
+
+*  ``http/0.9``
+*  ``http/1.0``
+*  ``http/1.1``
+*  ``http/2``
+*  ``spdy/1``
+*  ``spdy/2``
+*  ``spdy/3``
+*  ``spdy/3.1``
+
+The ``http/2`` value is currently not functional but included for future use. ``spdy/1`` and ``spdy/2`` are obsolete but are include for completeness.
+
+The session protocols supported on a proxy port are a subset of these values. For convenience some psuedo-values are defined in terms of these fundamental protocols.
+
+*  ``http`` means ``http/0.9``, ``http/1.0``, and ``http/1.1``
+*  ``spdy`` means ``spdy/3`` and ``spdy/3.1``.
+*  ``http2`` means ``http/2``
+
+Each proxy port can be
+configured in :ts:cv:`proxy.config.http.server_ports` to support a subset of
+these session protocols. For TLS enabled connections this
+configuration controls which protocols are offered by NPN. For non-TLS
+proxy ports protocol sniffing is used to determine which protocol is
+being used by the client. If the detected protocol is not supported
+for that proxy port the connection is dropped.
diff --git a/doc/admin/traffic-server-error-messages.en.rst b/doc/admin/traffic-server-error-messages.en.rst
new file mode 100644
index 00000000..01586c25
--- /dev/null
+++ b/doc/admin/traffic-server-error-messages.en.rst
@@ -0,0 +1,373 @@
+.. _traffic-server-error-messages:
+
+Error Messages
+**************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+Traffic Server Error Messages
+=============================
+
+The following table lists messages that can appear in system log files.
+This list is not exhaustive; it simply describes common warning messages
+that can occur and which might require your attention.
+
+Traffic Server Process Fatal
+============================
+
+``Accept port is not between 1 and 65535. Please check configuration``
+   The port specified in the :file:`records.config` file that accepts
+   incoming HTTP requests is not valid.
+
+``Self loop is detected in parent proxy configuration``
+   The name and port of the parent proxy match that of Traffic Server.
+   This creates a loop when Traffic Server attempts to send the request
+   to the parent proxy.
+
+Traffic Server Warnings
+-----------------------
+
+``<Logfile> error: error_number``
+   Generic logging error.
+
+``Bad cluster major version range <version1-version2> for node <IP address> connect failed``
+   Incompatible software versions causing a problem.
+
+``Connect by disallowed client <IP address>, closing``
+   The specified client is not allowed to connect to Traffic Server;
+   the client IP address is not listed in the ``ip_allow.config`` file.
+
+``Could not rename log <filename> to <rolled filename>``
+   System error when renaming log file during roll.
+
+``Did <this amount> of backup; still to do <remaining amount>``
+   Congestion is approaching.
+
+``Different clustering minor versions <version1, version2> for node <IP address> continuing``
+   Incompatible software versions are causing a problem.
+
+``Log format symbol <symbol name> not found``
+   Custom log format references a field symbol that does not exist.
+   Refer to :ref:`event-logging-formats`.
+
+``Missing field for field marker``
+   Error reading a log buffer.
+
+``Unable to open log file <filename>, errno=<error number>``
+   Cannot open the log file.
+
+``Error accessing disk <disk name>``
+   Traffic Server might have a cache read problem. You might need to
+   replace the disk.
+
+``Too many errors accessing disk <disk name>: declaring disk bad``
+   Traffic Server is not using the cache disk because it encountered
+   too many errors. The disk might be corrupt and might have to be
+   replaced.
+
+``No cache disks specified in storage.config file: cache disabled``
+   The Traffic Server ``storage.config`` file does not list any cache
+   disks; Traffic Server is running in proxy-only mode. You must add
+   the disks you want to use for the cache to :file:`storage.config`.
+
+Traffic Server Alarm Messages
+=============================
+
+``[Rollback::Rollback] Config file is read-only: <filename>``
+   Go to the Traffic Server ``config`` directory and check the
+   indicated file permissions; change if necessary.
+
+``[Rollback::Rollback] Unable to read or write config file <filename>``
+   Go to the Traffic Server ``config`` directory and make sure the
+   indicated file exists. Check permissions and modify if necessary.
+
+``[Traffic Manager] Configuration File Update Failed: <error number>``
+   Go to the Traffic Server ``config`` directory and check the
+   indicated file permissions; change if necessary.
+
+``[Traffic Manager] Mgmt <==>Proxy conn. closed``
+   An informational message to inform you that the :program:`traffic_server`
+   process is down.
+
+``Access logging suspended - configured space allocation exhausted.``
+   The space allocated to the event log files is full; you must either
+   increase the space or delete some log files so that access logging
+   to continue. To prevent this error, consider rolling log files more
+   frequently and enabling the autodelete feature.
+
+``Access logging suspended - no more space on the logging partition.``
+   The entire partition containing the event logs is full; you must
+   delete or move some log files to enable access logging to continue.
+   To prevent this error, consider rolling log files more frequently
+   and enabling the autodelete feature.
+
+``Created zero length place holder for config file <filename>``
+   Go to the Traffic Server ``config`` directory and check the
+   indicated file. If it is indeed zero in length, then use a backup
+   copy of the configuration file.
+
+``Traffic Server could not open logfile <filename>``
+   Check permissions for the indicated file and the logging directory.
+
+``Traffic Server failed to parse line <line number> of the logging config file <filename>``
+   Check your custom log configuration file; there could be syntax
+   errors. Refer to :ref:`custom-logging-fields` for correct custom log format fields.
+
+``vip_config binary is not setuid root, manager will be unable to enable virtual ip addresses``
+   The :program:`traffic_manager` process is not able to set virtual IP
+   addresses. You must ``setuid root`` for the ``vip_config`` file in
+   the Traffic Server ``bin`` directory.
+
+HTML Messages Sent to Clients
+=============================
+
+Traffic Server returns detailed error messages to browser clients when
+there are problems with the HTTP transactions requested by the browser.
+These Traffic Server response messages correspond to standard HTTP
+response codes, but provide more information. A list of the more
+frequently-encountered HTTP response codes is provided in :ref:`standard-http-response-messages`.
+You can customize the Traffic Server response messages (typically in 
+proxy/config/body_factory/default/, but set by 
+:ts:cv:`proxy.config.body_factory.template_sets_dir`).
+
+The following table lists the hard-coded Traffic Server HTTP messages,
+with corresponding HTTP response codes and customizable files.
+
+``Access Denied``
+   ``403``
+   You are not allowed to access the document at location ``URL``.
+   ``access#denied``
+
+``Cache Read Error``
+   ``500``
+   Error reading from cache; please retry request.
+   ``cache#read_error``
+
+``Connection Timed Out``
+   ``504``
+   Too much time has elapsed since the server has sent data.
+   ``timeout#inactivity``
+
+``Content Length Required``
+   ``400``
+   Could not process this request because ``Content-Length`` was not specified.
+   ``request#no_content_length``
+
+``Cycle Detected``
+   ``400``
+   Your request is prohibited because it would cause an HTTP proxy cycle.
+   ``request#cycle_detected``
+
+``Forbidden``
+    ``403``
+    ``<port number>`` is not an allowed port for SSL connections (you have made a request for a secure SSL connection to a forbidden port  number).
+    ``access#ssl_forbidden``
+
+``Host Header Required``
+   ``400``
+   An attempt was made to transparently proxy your request, but this
+   attempt failed because your browser did not send an HTTP ``Host``
+   header. Manually configure your browser to use
+   ``http://<proxy name>:<proxy port>`` as the HTTP
+   proxy. Alternatively, end users can upgrade to a browser that
+   supports the HTTP ``Host`` header field.
+   ``interception#no_host``
+
+``Host Header Required``
+   ``400``
+   Because your browser did not send a ``Host`` HTTP header field, the
+   virtual host being requested could not be determined. To access the
+   website correctly, you must upgrade to a browser that supports the
+   HTTP ``Host`` header field.
+   ``request#no_host``
+
+``HTTP Version Not Supported``
+   ``505``
+   The origin server ``<server name>`` is using an unsupported version
+   of the HTTP protocol.
+   ``response#bad_version``
+
+``Invalid Content Length``
+   ``400``
+   Could not process this request because the specified ``Content-Length``
+   was invalid (less than 0)..
+   ``request#invalid_content_length``
+
+``Invalid HTTP Request``
+   ``400``
+   Could not process this ``<client request>`` HTTP method request for ``URL``.
+   ``request#syntax_error``
+
+``Invalid HTTP Response``
+   ``502``
+   The host ``<server name>`` did not return the document ``URL`` correctly.
+   ``response#bad_response``
+
+``Malformed Server Response``
+   ``502``
+   The host ``<server name>`` did not return the document ``URL`` correctly.
+   ``response#bad_response``
+
+``Malformed Server Response Status``
+   ``502``
+   The host ``<server name>`` did not return the document ``URL`` correctly.
+   ``response#bad_response``
+
+``Maximum Transaction Time exceeded``
+   ``504``
+   Too much time has elapsed while transmitting document ``URL``.
+   ``timeout#activity``
+
+``No Response Header From Server``
+   ``502``
+   The host ``<server name>`` did not return the document ``URL`` correctly.
+   ``response#bad_response``
+
+``Not Cached``
+   ``504``
+   This document was not available in the cache, and you (the client)
+   only accept cached copies.
+   ``cache#not_in_cache``
+
+``Not Found on Accelerator``
+   ``404``
+   The request for ``URL`` on host ``<server name>`` was not found.
+   Check the location and try again.
+   ``urlrouting#no_mapping``
+
+``NULL``
+   ``502``
+   The host ``<hostname>`` did not return the document ``URL`` correctly.
+   ``response#bad_response``
+
+``Proxy Authentication Required``
+   ``407``
+   Please log in with username and password.
+   ``access#proxy_auth_required``
+
+``Server Hangup``
+   ``502``
+   The server ``<hostname>`` closed the connection before the transaction was completed.
+   ``connect#hangup``
+
+``Temporarily Moved``
+   ``302``
+   The document you requested, ``URL``, has moved to a new location. The new location is ``<new URL>``.
+   ``redirect#moved_temporarily``
+
+``Transcoding Not Available``
+   ``406``
+   Unable to provide the document ``URL`` in the format requested by your browser.
+   ``transcoding#unsupported``
+
+``Tunnel Connection Failed``
+   ``502``
+   Could not connect to the server ``<hostname>``.
+   ``connect#failed_connect``
+
+``Unknown Error``
+   ``502``
+   The host ``<hostname>`` did not return the document ``URL`` correctly.
+   ``response#bad_response``
+
+``Unknown Host``
+   ``500``
+   Unable to locate the server named ``<hostname>``; the server does
+   not have a DNS entry. Perhaps there is a misspelling in the server
+   name or the server no longer exists; double-check the name and try
+   again.
+   ``connect#dns_failed``
+
+``Unsupported URL Scheme``
+   ``400``
+   Cannot perform your request for the document ``URL`` because the
+   protocol scheme is unknown.
+   ``request#scheme_unsupported``
+
+
+.. _standard-http-response-messages:
+
+Standard HTTP Response Messages
+-------------------------------
+
+The following standard HTTP response messages are provided for your
+information.
+
+``200``
+   OK
+
+``202``
+   Accepted
+
+``204``
+   No Content
+
+``206``
+   Partial Content
+
+``300``
+   Multiple Choices
+
+``301``
+   Moved Permanently
+
+``302``
+   Found
+
+``303``
+   See Other
+
+``304``
+   Not Modified
+
+``400``
+   Bad Request
+
+``401``
+   Unauthorized; retry
+
+``403``
+   Forbidden
+
+``404``
+   Not Found
+
+``405``
+   Method Not Allowed
+
+``406``
+   Not acceptable
+
+``408``
+   Request Timeout
+
+``500``
+   Internal server error
+
+``501``
+   Not Implemented
+
+``502``
+   Bad Gateway
+
+``504``
+   Gateway Timeout
+    
diff --git a/doc/admin/transparent-proxy.en.rst b/doc/admin/transparent-proxy.en.rst
new file mode 100644
index 00000000..2a2eb5c5
--- /dev/null
+++ b/doc/admin/transparent-proxy.en.rst
@@ -0,0 +1,113 @@
+.. _transparent-proxy:
+
+Transparent Proxying
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+.. toctree::
+   :maxdepth: 2
+
+   transparent-proxy/build.en
+   transparent-proxy/bridge.en
+   transparent-proxy/router-inline.en
+   transparent-proxy/wccp-configuration.en
+
+Transparent Proxying is the ability of a proxy (such as ATS) to
+intercept connections between clients and servers without being visible.
+
+The general network structure that will be used in this documentation
+looks like this --
+
+.. figure:: ../static/images/admin/ats-basic-traffic.png
+   :align: center
+   :alt: ATS basic traffic flow of Transparent Proxy
+
+   ATS basic traffic flow of Transparent Proxy
+
+There must be a gateway device through which passes all network traffic
+from the client to the Internet (or external cloud). The gateway is
+responsible for effectively splicing ATS in to selected streams of that
+traffic. Each traffic stream is split in to two, with ATS terminating
+both sides. That is, stream green-1, red-2, is split in to the green
+connection and the red connection. Note that ATS may or may not be on
+the gateway system, the redirected traffic can flow over other network
+infrastructure.
+
+Because ATS uses two connections transparency can be set independently
+on the client and origin server (Internet / external cloud) side. We
+will define what is generally called "transparent proxy" as two aspects,
+*inbound transparency* and *outbound transparency*.
+
+Inbound transparency is a proxy that is transparent to connections that
+are inbound to the proxy, i.e. a connection initiated by a client which
+connects to the proxy (green-1). Similarly, outbound transparency is a
+proxy that is transparent to connections that are outbound from the
+proxy, i.e. a connection initiated by the proxy to an origin server
+(red-2).
+
+In most treatments these two types of transparency are treated as
+unitarily but that is not required. This implementation supports
+transparency independently on the two (client, origin server) sides
+(`use cases <half-transparency-use-cases>`_.
+
+It is critical to note that any transparency requires specialized
+routing and cannot be done solely by configuring ATS. ATS transparency
+also requires support from the Linux kernel and therefore currently only
+works on sufficiently recent Linux kernels that support the following
+features --
+
+-  TPROXY
+-  POSIX capabilities
+
+In addition the specialized routing will require using ``iptables`` and
+in some cases ``ebtables``.
+
+Standard build procedures should work for transparency support but if
+not consult these :ref:`more detailed instructions <building-ats-for-transparency>`
+
+Transparency is configured per server port not globally. This is done
+via the configuration values :ts:cv:`proxy.config.http.server_ports`.
+In addition, :ts:cv:`proxy.config.reverse_proxy.enabled` must be enabled if the
+client side is transparent. That should be fixed in a future patch.
+
+In the first case use the attribute character (replacing the default
+'X')
+
+**Attribute** **Transparency Style** **Reverse Proxy**
+
+``=``
+    Full transparency: either
+
+``>``
+    Inbound (client) transparency: enabled
+
+``<``
+    Outbound (origin server) transparency: either
+
+In the outbound transparent case clients must connect directly to ATS
+either through an explicit proxy mechanism or by advertising the IP
+address of the ATS server via DNS as the origin server address.
+
+Some tested scenarios --
+
+-  :doc:`transparent-proxy/bridge.en`
+-  :doc:`transparent-proxy/router-inline.en`
+-  :doc:`transparent-proxy/wccp-configuration.en`
+
diff --git a/doc/admin/transparent-proxy/bridge.en.rst b/doc/admin/transparent-proxy/bridge.en.rst
new file mode 100644
index 00000000..388a9c8f
--- /dev/null
+++ b/doc/admin/transparent-proxy/bridge.en.rst
@@ -0,0 +1,177 @@
+Inline on a Linux Bridge
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+
+
+A Linux can be configured to operate in `bridge mode <http://www.linuxfoundation.org/collaborate/workgroups/networking/bridge>`_.
+Two or more physical interfaces are assigned to the bridge. A single IP
+address is shared across the interfaces. By default any packet that
+arrives on one interface is immediately routed out another bridge
+interface.
+
+Linux packages required:
+
+-  bridge-utils
+-  ebtables
+
+In our example of setting up bridge mode we will use a local address of
+192.168.1.11/24 and interfaces ``eth0`` and ``eth1`` as the bridge
+interfaces (more detailed documentation is available
+`here <http://www.tldp.org/HOWTO/BRIDGE-STP-HOWTO/preparing-the-bridge.html>`_).
+You may omit the '#' character and everything after it. ::
+
+   brctl addbr br0 # create bridge device
+   brctl stp br0 off # Disable spanning tree protocol
+   brctl addif br0 eth0 # Add eth0 to bridge
+   brctl addif br0 eth1 # Add eth1 to bridge
+
+   ifconfig eth0 0 0.0.0.0 # Get rid of interface IP addresses
+   ifconfig eth1 0 0.0.0.0 # ditto # Set the bridge IP address and enable it
+   ifconfig br0 192.168.1.11 netmask 255.255.255.0 up
+
+If you have not already done so, remember to add a default route, such
+as this one for a gateway of 192.168.1.1. ::
+
+   ip route add default via 192.168.1.1
+
+At this point it is a good idea to test connectivity to verify the basic
+bridge is functional.
+
+Once the bridge is verified to work, this is the basic traffic pattern
+of interest.
+
+.. figure:: ../../static/images/admin/ats-traffic-bridge.png
+   :align: center
+   :alt: Picture of traffic flow through a bridge with ATS
+
+   Picture of traffic flow through a bridge with ATS
+
+The green arrows are packets originating from the client and the red
+arrows are packets originating from the origin server. All traffic not
+directed to the local address will pass through the bridge. We need to
+break into some of the traffic and subject it to routing so that it can
+be routed to ATS. This requires ``ebtables``. The flows we want to
+intercept are green 1 (from client to bridge) and red 1 (origin server
+to bridge).
+
+In this example we will intercept port 80 (HTTP) traffic. We will use
+the ``BROUTING`` chain because it is traversed only for packets that
+originated externally and arrived on a (forwarding enabled) interface.
+Although it looks like this will intercept all port 80 traffic it will
+only affect the two flows described above. ``-j redirect`` marks the
+packet as being diverted to the bridge and not forwarded, and the
+``DROP`` target puts the packets in the normal ``iptables`` routing so
+that we can use standard device tests on them [1]_. Although this
+example handles only port 80, other ports are the same except for the
+port value. Note also the port here is the port from the point of view
+of the clients and origin servers, not the Traffic Server server port. ::
+
+   ebtables -t broute -F # Flush the table
+   # inbound traffic
+   ebtables -t broute -A BROUTING -p IPv4 --ip-proto tcp --ip-dport 80 \
+     -j redirect --redirect-target DROP
+   # returning outbound traffic
+   ebtables -t broute -A BROUTING -p IPv4 --ip-proto tcp --ip-sport 80 \
+     -j redirect --redirect-target DROP
+
+Traffic Server operates at layer 3 so we need to use ``iptables`` to
+handle IP packets appropriately.::
+
+   iptables -t mangle -A PREROUTING -i eth1 -p tcp -m tcp --dport 80 \
+     -j TPROXY --on-ip 0.0.0.0 --on-port 8080 --tproxy-mark 1/1
+   iptables -t mangle -A PREROUTING -i eth0 -p tcp -m tcp --sport 80 \
+      -j MARK --set-mark 1/1
+
+At this point the directionality of the interfaces matters. For the
+example ``eth1`` is the inbound (client side) interface, while ``eth0``
+is the outbound (origin server side) interface. We mark both flows of
+packets so that we can use policy routing on them. For inbound packets
+we need to use ``TPROXY`` to force acceptance of packets to foreign IP
+addresses. For returning outbound packets there will be a socket open
+bound to the foreign address, we need only force it to be delivered
+locally. The value for ``--on-ip`` is 0 because the target port is
+listening and not bound to a specific address. The value for
+``--on-port`` must match the Traffic Server server port. Otherwise its
+value is arbitrary. ``--dport`` and ``--sport`` specify the port from
+the point of view of the clients and origin servers.
+
+Once the flows are marked we can force them to be delivered locally via
+the loopback interface via a policy routing table.::
+
+   ip rule add fwmark 1/1 table 1
+   ip route add local 0.0.0.0/0 dev lo table 1
+
+The marking used is arbitrary but it must be consistent between
+``iptables`` and the routing rule. The table number must be in the range
+1..253.
+
+To configure Traffic Server set the following values in
+:file:`records.config`
+
+- :ts:cv:`proxy.config.http.server_ports` *value from* ``--on-port`` (see below)
+
+- :ts:cv:`proxy.config.reverse_proxy.enabled` ``1``
+
+- :ts:cv:`proxy.config.url_remap.remap_required` ``0``
+
+You may also need to set :ts:cv:`proxy.config.cluster.ethernet_interface` to
+"br0" (the name of the bridge interface from the `<Bridge Commands>`_).
+
+Additional troubleshooting
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* Check to make sure that ``iptables`` is not filtering (blocking)
+  incoming HTTP connections.
+
+   It is frequently the case that the default tables prevent incoming HTTP. You can clear all filters with the
+   commands::
+
+      iptables -t filter --flush FORWARD
+      iptables -t filter --flush INPUT
+
+   That is a bit drastic and should only be used for testing / debugging. A
+   live system will likely need some filters in place but that is beyond
+   the scope of this document. If this fixes the problem, then your filter
+   set is too restrictive.
+
+   Note that this problem will prevent the basic bridge (without ATS) from
+   allowing HTTP traffic through.
+
+* Verify that IP packet forwarding is enabled.
+
+   You can check this with::
+
+      cat /proc/sys/net/ipv4/ip_forward
+
+   The output should be a non-zero value (usually '1'). If it is zero, you
+   can set it with::
+
+      echo '1' > /proc/sys/net/ipv4/ip_forward
+
+   This can setting can be persisted by putting it in ``/etc/sysctl.conf``: ::
+
+      net/ipv4/ip_forward=1
+
+.. rubric:: Footnotes
+
+.. [1]
+   The ``--redirect-target`` can be omitted, but then the ``iptables``
+   rules would need to use ``--physdev`` instead of just ``-i``. The
+   actual packet processing is identical.
diff --git a/doc/admin/transparent-proxy/build.en.rst b/doc/admin/transparent-proxy/build.en.rst
new file mode 100644
index 00000000..e547a061
--- /dev/null
+++ b/doc/admin/transparent-proxy/build.en.rst
@@ -0,0 +1,60 @@
+.. _building-ats-for-transparency:
+
+Building ATS for transparency
+*****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+In most cases, if your environment supports transparency then
+``configure`` will automatically enable it. For other environments you
+may need to twiddle the ``configure`` options.
+
+``--enable-posix-cap``
+    This enables POSIX capabilities, which are required for
+    transparency. These are compiled in by default. To check your
+    system, look for the header file ``sys/capability.h`` and the system
+    library ``libcap``. These are in the packages ``libcap`` and
+    ``libcap-devel`` or ``libcap-dev`` (depending on the Distribution)
+    contra-respectively.
+
+``--enable-tproxy[=value]``
+    Enable TPROXY support, which is the Linux kernel feature used for
+    transparency. This should be present in the base installation, there
+    is no package associated with it. \* ``auto`` Do automatic checks
+    for the the TPROXY header file (``linux/in.h``) and enable TPROXY
+    support if the ``IP_TRANSPARENT`` definition is present. This is the
+    default if this option is not specified or ``value`` is omitted. \*
+    ``no`` Do not check for TPROXY support, disable support for it. \*
+    ``force`` Do not check for TPROXY support, enable it using the $ats@
+    built in value for ``IP_TRANSPARENT``. This is useful for systems
+    that have it in the kernel for but some reason do not have the
+    appropriate system header file. \* *number* Do not check for TPROXY
+    support, use *number* as the ``IP_TRANSPARENT`` value. There are, at
+    present, no known standard distributions of Linux that support
+    TPROXY but use a value different from the built in ATS default.
+    However, a custom built kernel may do so and in that case the
+    specific value can be specified.
+
+In the default case, ATS configuration will automatically check for
+TPROXY support via the presence of the ``linux/in.h`` header file and
+compile in TPROXY support if it is available. If that fails, you may be
+able to recover by using one of the options above. Note that
+transparency may be built in by default but it is not active unless
+explicitly enabled in the ATS configuration files.
+
diff --git a/doc/admin/transparent-proxy/router-inline.en.rst b/doc/admin/transparent-proxy/router-inline.en.rst
new file mode 100644
index 00000000..f7047b9a
--- /dev/null
+++ b/doc/admin/transparent-proxy/router-inline.en.rst
@@ -0,0 +1,91 @@
+Inline on a Linux router
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The routed set up presumes the set of clients are on distinct networks
+behind a single physical interface. For the purposes of this example
+will we presume
+
+-  The clients are on network 172.28.56.0/24
+-  The router connects the networks 172.28.56.0/24 and 192.168.1.0/24
+-  Interface ``eth0`` is on the network 192.168.1.0/24
+-  Interface ``eth1`` is on the network 172.28.56.0/24
+-  The router is already configured to route traffic correctly for the
+   clients.
+
+In this example we will intercept port 80 (HTTP) traffic that traverses
+the router. The first step is to use ``iptables`` to handle IP packets
+appropriately.
+
+::
+
+    # reflow client web traffic to TPROXY
+    iptables -t mangle -A PREROUTING -i eth1 -p tcp -m tcp --dport 80 -j TPROXY \
+       --on-ip 0.0.0.0 --on-port 8080 --tproxy-mark 1/1
+    # Let locally directed traffic pass through.
+    iptables -t mangle -A PREROUTING -i eth0 --source 192.168.56.0/24 -j ACCEPT
+    iptables -t mangle -A PREROUTING -i eth0 --destination 192.168.56.0/24 -j ACCEPT
+    # Mark presumed return web traffic
+    iptables -t mangle -A PREROUTING -i eth0 -p tcp -m tcp --sport 80 -j MARK --set-mark 1/1
+
+We mark packets so that we can use policy routing on them. For inbound
+packets we use ``TPROXY`` to make it possible to accept packets sent to
+foreign IP addresses. For returning outbound packets there will be a
+socket open bound to the foreign address, we need only force it to be
+delivered locally. The value for ``--on-ip`` is 0 because the target
+port is listening and not bound to a specific address. The value for
+``--on-port`` must match the Traffic Server server port. Otherwise its
+value is arbitrary. ``--dport`` and ``--sport`` specify the port from
+the point of view of the clients and origin servers. The middle two
+lines exempt local web traffic from being marked for Traffic Server --
+these rules can be tightened or loosened as needed. They server by
+matching traffic and exiting the ``iptables`` processing via ``ACCEPT``
+before the last line is checked.
+
+Once the flows are marked we can force them to be delivered locally via
+the loopback interface via a policy routing table.
+
+::
+
+    ip rule add fwmark 1/1 table 1
+    ip route add local 0.0.0.0/0 dev lo table 1
+
+The marking used is arbitrary but it must be consistent between
+``iptables`` and the routing rule. The table number must be in the range
+1..253.
+
+To configure Traffic Server set the following values in
+:file:`records.config`
+
+``proxy.config.http.server_port``
+    ``STRING``
+    Default: *value from* ``--on-port``
+
+``proxy.config.http.server_port_attr``
+    ``STRING``
+    Default: ``=``
+
+``proxy.config.reverse_proxy.enabled``
+    ``INT``
+    Default: ``1``
+
+``proxy.config.url_remap.remap_required``
+    ``INT``
+    Default: ``0``
+
diff --git a/doc/admin/transparent-proxy/wccp-configuration.en.rst b/doc/admin/transparent-proxy/wccp-configuration.en.rst
new file mode 100644
index 00000000..25888228
--- /dev/null
+++ b/doc/admin/transparent-proxy/wccp-configuration.en.rst
@@ -0,0 +1,155 @@
+WCCP Configuration
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+.. toctree::
+   :maxdepth: 2
+
+`WCCP <http://cio.cisco.com/en/US/docs/ios/12_0t/12_0t3/feature/guide/wccp.html>`_
+is de-facto semi-standard used by routers to redirect network traffic to
+caches. It is available on most Cisco™ routers although it does not
+appear to be officially supported by Cisco. The primary benefits of WCCP
+are
+
+-  If already have a router that supports WCCP inline you do not
+   have to change your network topology.
+-  WCCP fails open so that if the Traffic Server machine fails, it is
+   bypassed and users continue to have Internet access.
+
+Use of WCCP only makes sense for client side transparency [1]_
+because if the clients are explicitly proxied by Traffic Server there's
+no benefit to WCCP fail open, as the clients will continue to directly
+access the unresponsive Traffic Server host. It would be better to
+adjust the routing tables on the router for explicit proxying.
+
+Because the router serves as the inline network element, Traffic Server
+must run on a separate host. This host can be located anywhere as long
+as Traffic Server is either on the same network segment or a GRE tunnel
+can be maintained between the Traffic Server host and the router.
+
+|important| This document presumes that the router is already properly
+configured to handle traffic between the clients and the origin servers.
+If you are not certain, verify it before attempting to configure Traffic
+Server with WCCP. This is also a good state to which to revert should
+the configuration go badly.
+
+Configuration overview
+======================
+
+Setting WCCP is a three step process, first configuring the router, the
+Traffic Server host, and Traffic Server.
+
+|image1| The router will **not** respond to WCCP protocol packets unless
+explicitly configured to do so. Via WCCP, the router can be made to
+perform packet interception and redirection needed by Traffic Server
+transparency. The WCCP protocol in effect acts as means of controlling a
+rough form of policy routing with positive heartbeat cutoff.
+
+The Traffic Server host system must also be configured using
+``iptables`` to accept connections on foreign addresses. This is done
+roughly the same way as the standard transparency use.
+
+Finally Traffic Server itself must be configured for transparency and
+use of WCCP. The former is again very similar to the standard use, while
+WCCP configuration is specific to WCCP and uses a separate configuration
+file, referred to by the :file:`records.config` file.
+
+The primary concern for configuration in which of three basic topologies
+are to be used.
+
+-  Dedicated -- Traffic Server traffic goes over an interface that is
+   not used for client nor origin server traffic.
+-  Shared -- Traffic Server traffic shares an interface with client or
+   server traffic.
+-  Inside Shared -- Traffic Server and client traffic share an
+   interface.
+-  `Outside Shared <wccp-outside-shared.html>`_ -- Traffic Server and
+   origin server traffic share an interface.
+
+In general the dedicated topology is preferred. However, if the router
+has only two interfaces one of the shared topologies will be
+required [2]_ Click the links above for more detailed configuration
+information on a specific topology.
+
+Shared interface issues
+-----------------------
+
+A shared interface topology has additional issues compared to a
+dedicated topology that must be handled. Such a topology is required if
+the router has only two interfaces, and because of these additional
+issues it is normally only used in such cases, although nothing prevents
+it use even if the router has three or more interfaces.
+
+The basic concept for a shared interface is to use a tunnel to simulate
+the dedicated interface case. This enables the packets to be
+distinguished at layer 3. For this reason, layer 2 redirection cannot be
+used because the WCCP configuration cannot distinguish between packets
+returning from the origin server and packets returning from Traffic
+Server as they are distinguished only by layer 2 addressing [3]_.
+Fortunately the GRE tunnel used for packet forwarding and return can be
+used as the simulated interface for Traffic Server.
+
+Frequently encountered problems
+-------------------------------
+
+MTU and fragmentation
+~~~~~~~~~~~~~~~~~~~~~
+
+In most cases the basic configuration using a tunnel in any topology can
+fail due to issues with fragmentation. The socket logic is unable to
+know that its packets will eventually be put in to a tunnel which will
+by its nature have a smaller
+`MTU <http://en.wikipedia.org/wiki/Maximum_transmission_unit>`_ than the
+physical interface which it uses. This can lead to pathological behavior
+or outright failure as the packets sent are just a little too big. It is
+not possible to solve easily by changing the MTU on the physical
+interface because the tunnel interface uses that to compute its own MTU.
+
+References
+==========
+
+-  `WCCP Router Configuration Commands - IOS
+   12.2 <http://www.cisco.com/en/US/docs/ios/12_2/configfun/command/reference/frf018.html>`_
+
+
+
+
+
+
+
+
+.. [1]
+   Server side transparency should also be used, but it is not as
+   significant. In its absence, however, origin servers may see the
+   source address of connections suddenly change from the Traffic Server
+   address to client addresses, which could cause problems. Further, the
+   primary reason for not having server side transparency is to hide
+   client addresses which is defeated if the Traffic Server host fails.
+
+.. [2]
+   If your router has only one interface, it's hardly a *router*.
+
+.. [3]
+   This is not fundamentally impossible, as the packets are distinct in
+   layer
+
+.. |important| image:: ../../static/images/docbook/important.png
+.. |image1| image:: ../../static/images/docbook/important.png
+
diff --git a/doc/admin/working-log-files.en.rst b/doc/admin/working-log-files.en.rst
new file mode 100644
index 00000000..e4458d8f
--- /dev/null
+++ b/doc/admin/working-log-files.en.rst
@@ -0,0 +1,1157 @@
+.. _working-with-log-files:
+
+Working with Log Files
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+
+Traffic Server generates log files that contain information about every
+request it receives and every error it detects. This chapter will examine the
+various log features, the configuration formats and also examine the various
+pre-defined log formats that are available.
+
+.. _understanding-traffic-server-log-files:
+
+Understanding Traffic Server Log Files
+======================================
+
+Traffic Server records information about every transaction (or request)
+it processes and every error it detects in log files. Traffic Server
+keeps three types of log files:
+
+-  **Error log files** record information about why a particular
+   transaction was in error.
+
+-  **Event log files** (also called **access log files**) record
+   information about the state of each transaction Traffic Server
+   processes.
+
+-  **System log files** record system information, including messages
+   about the state of Traffic Server and errors/warnings it produces.
+   This kind of information might include a note that event log files
+   were rolled, a warning that cluster communication timed out, or an
+   error indicating that Traffic Server was restarted.
+
+   All system information messages are logged with the system-wide
+   logging facility :manpage:`syslog` under the daemon facility. The
+   :manpage:`syslog.conf(5)` configuration file (stored in the ``/etc`` directory)
+   specifies where these messages are logged. A typical location is
+   ``/var/log/messages`` (Linux).
+
+   The :manpage:`syslog(8)` process works on a system-wide basis, so it serves as
+   the single repository for messages from all Traffic Server processes
+   (including :program:`traffic_server`, :program:`traffic_manager`, and
+   :program:`traffic_cop`).
+
+   System information logs observe a static format. Each log entry in
+   the log contains information about the date and time the error was
+   logged, the hostname of the Traffic Server that reported the error,
+   and a description of the error or warning.
+
+   Refer to :ref:`traffic-server-error-messages` for a list of the
+   messages logged by Traffic Server.
+
+By default, Traffic Server creates both error and event log files and
+records system information in system log files. You can disable event
+logging and/or error logging by setting the configuration variable
+:ts:cv:`proxy.config.log.logging_enabled` (in the :file:`records.config` file)
+to one of the following values:
+
+-  ``0`` to disable both event and error logging
+-  ``1`` to enable error logging only
+-  ``2`` to enable transaction logging only
+-  ``3`` to enable both transaction and error logging
+
+Understanding Event Log Files
+=============================
+
+Event log files record information about every request that Traffic
+Server processes. By analyzing the log files, you can determine how many
+people use the Traffic Server cache, how much information each person
+requested, what pages are most popular, and so on. Traffic Server
+supports several standard log file formats, such as Squid and Netscape,
+as well as user-defined custom formats. You can analyze the standard
+format log files with off-the-shelf analysis packages. To help with log
+file analysis, you can separate log files so they contain information
+specific to protocol or hosts. You can also configure Traffic Server to
+roll log files automatically at specific intervals during the day or
+when they reach a certain size.
+
+The following sections describe the Traffic Server logging system
+features and discuss how to:
+
+-  **Manage your event log files**
+
+   You can choose a central location for storing log files, set how much
+   disk space to use for log files, and set how and when to roll log
+   files. Refer to `Managing Event Log Files`_.
+
+-  **Choose different event log file formats**
+
+   You can choose which standard log file formats you want to use for
+   traffic analysis, such as Squid or Netscape. Alternatively, you can
+   use the Traffic Server custom format, which is XML-based and enables
+   you to institute more control over the type of information recorded
+   in log files. Refer to `Choosing Event Log File Formats`_.
+
+-  **Roll event log files automatically**
+
+   Configure Traffic Server to roll event log files at specific
+   intervals during the day or when they reach a certain size; this
+   enables you to identify and manipulate log files that are no longer
+   active. Refer to `Rolling Event Log Files`_.
+
+-  **Separate log files according to protocols and hosts**
+
+   Configure Traffic Server to create separate log files for different
+   protocols. You can also configure Traffic Server to generate separate
+   log files for requests served by different hosts. Refer to `Splitting Event Log Files`_.
+
+-  **Collate log files from different Traffic Server nodes**
+
+   Designate one or more nodes on the network to serve as log collation
+   servers. These servers, which might be standalone or part of Traffic
+   Server, enable you to keep all logged information in well-defined
+   locations. Refer to `Collating Event Log Files`_.
+
+-  **View statistics about the logging system**
+
+   Traffic Server provides statistics about the logging system; you can
+   access these statistics via Traffic Line. Refer to `Viewing Logging Statistics`_.
+
+-  **Interpret log file entries for the log file formats**
+
+   Refer to `Example Event Log File Entries`_.
+
+Managing Event Log Files
+------------------------
+
+Traffic Server enables you to control where event log files are located
+and how much space they can consume. Additionally you can specify how to
+handle low disk space in the logging directory.
+
+Choosing the Logging Directory
+------------------------------
+
+By default, Traffic Server writes all event log files in the ``logs``
+directory located in the directory where you installed Traffic Server.
+To use a different directory, refer to `Setting Log File Management Options`_.
+
+Controlling Logging Space
+-------------------------
+
+Traffic Server enables you to control the amount of disk space that the
+logging directory can consume. This allows the system to operate
+smoothly within a specified space window for a long period of time.
+After you establish a space limit, Traffic Server continues to monitor
+the space in the logging directory. When the free space dwindles to the
+headroom limit (see `Setting Log File Management Options`_), it enters
+a low space state and takes the following actions:
+
+-  If the autodelete option (discussed in `Rolling Event Log Files`_)
+   is *enabled*, then Traffic Server
+   identifies previously-rolled log files (i.e., log files with the
+   ``.old`` extension). It starts deleting files one by one, beginning
+   with the oldest file, until it emerges from the low state. Traffic
+   Server logs a record of all deleted files in the system error log.
+
+-  If the autodelete option is *disabled* or there are not enough old
+   log files to delete for the system to emerge from its low space
+   state, then Traffic Server issues a warning and continues logging
+   until space is exhausted. When available space is consumed, event
+   logging stops. Traffic Server resumes event logging when enough space
+   becomes available for it to exit the low space state. To make space
+   available, either explicitly increase the logging space limit or
+   remove files from the logging directory manually.
+
+You can run a :manpage:`cron(8)` script in conjunction with Traffic Server to
+automatically remove old log files from the logging directory before
+Traffic Server enters the low space state. Relocate the old log files to
+a temporary partition, where you can run a variety of log analysis
+scripts. Following analysis, either compress the logs and move to an
+archive location, or simply delete them.
+
+
+Setting Log File Management Options
+-----------------------------------
+
+To set log management options, follow the steps below:
+
+1. In the :file:`records.config` file, edit the following variables
+
+   -  :ts:cv:`proxy.config.log.logfile_dir`
+   -  :ts:cv:`proxy.config.log.max_space_mb_for_logs`
+   -  :ts:cv:`proxy.config.log.max_space_mb_headroom`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Choosing Event Log File Formats
+-------------------------------
+
+Traffic Server supports the following log file formats:
+
+-  Standard formats, such as Squid or Netscape; refer to `Using Standard Formats`_.
+-  The Traffic Server custom format; refer to `Using the Custom Format`_.
+
+In addition to the standard and custom log file format, you can choose
+whether to save log files in binary or ASCII; refer to `Choosing Binary or ASCII`_.
+
+Event log files consume substantial disk space. Creating log entries in
+multiple formats at the same time can consume disk resources very
+quickly and adversely impact Traffic Server performance.
+
+Using Standard Formats
+~~~~~~~~~~~~~~~~~~~~~~
+
+The standard log formats include Squid, Netscape Common, Netscape
+extended, and Netscape Extended-2. The standard log file formats can be
+analyzed with a wide variety of off-the-shelf log-analysis packages. You
+should use one of the standard event log formats unless you need
+information that these formats do not provide. Refer to `Using the Custom Format`_.
+
+Set standard log file format options by following the steps below:
+
+1. In the :file:`records.config` file, edit the following variables
+2. Edit the following variables to use the Squid format:
+
+   -  :ts:cv:`proxy.config.log.squid_log_enabled`
+   -  :ts:cv:`proxy.config.log.squid_log_is_ascii`
+   -  :ts:cv:`proxy.config.log.squid_log_name`
+   -  :ts:cv:`proxy.config.log.squid_log_header`
+
+3. To use the Netscape Common format, edit the following variables:
+
+   -  :ts:cv:`proxy.config.log.common_log_enabled`
+   -  :ts:cv:`proxy.config.log.common_log_is_ascii`
+   -  :ts:cv:`proxy.config.log.common_log_name`
+   -  :ts:cv:`proxy.config.log.common_log_header`
+
+4. To use the Netscape Extended format, edit the following variables:
+
+   -  :ts:cv:`proxy.config.log.extended_log_enabled`
+   -  :ts:cv:`proxy.config.log.extended_log_is_ascii`
+   -  :ts:cv:`proxy.config.log.extended_log_name`
+   -  :ts:cv:`proxy.config.log.extended_log_header`
+
+5. To use the Netscape Extended-2 format, edit the following variables:
+
+   -  :ts:cv:`proxy.config.log.extended2_log_enabled`
+   -  :ts:cv:`proxy.config.log.extended2_log_is_ascii`
+   -  :ts:cv:`proxy.config.log.extended2_log_name`
+   -  :ts:cv:`proxy.config.log.extended2_log_header`
+
+6. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+
+.. _using-custom-log-formats:
+
+Using the Custom Format
+~~~~~~~~~~~~~~~~~~~~~~~
+
+The XML-based custom log format is more flexible then the standard log
+file formats and gives you more control over the type of information
+recorded in log files. You should create a custom log format if you need
+data for analysis that's not available in the standard formats. You can
+decide what information to record for each Traffic Server transaction
+and create filters that specify which transactions to log.
+
+The heart of the XML-based custom logging feature is the XML-based
+logging configuration file (:file:`logs_xml.config`) that enables you to
+create very modular descriptions of logging objects. The
+:file:`logs_xml.config` file uses three types of objects to create custom
+log files, as detailed below. To generate a custom log format, you must
+specify at least one ``LogObject`` definition (one log file is produced
+for each ``LogObject`` definition).
+
+-  The ``LogFormat`` object defines the content of the log file
+   using printf-style format strings.
+-  The ``LogFilter`` object defines a filter so that you include or
+   exclude certain information from the log file.
+-  The ``LogObject`` object specifies all the information needed to
+   produce a log file.
+
+   -  The name of the log file. (required)
+   -  The format to be used (required). This can be a standard format
+      (Squid or Netscape) or
+   -  a previously-defined custom format (i.e., a previously-defined
+      ``LogFormat`` object).
+   -  The file mode: ``ASCII``, ``Binary``, or ``ASCII_PIPE``. The
+      default is ``ASCII``.
+      The ``ASCII_PIPE`` mode writes log entries to a UNIX-named pipe
+      (a buffer in memory); other processes can then read the data using
+      standard I/O functions. The advantage of this option is that
+      Traffic Server does not have to write to disk, which frees disk
+      space and bandwidth for other tasks. When the buffer is full,
+      Traffic Server drops log entries and issues an error message
+      indicating how many entries were dropped. Because Traffic Server
+      only writes complete log entries to the pipe, only full records
+      are dropped.
+   -  Any filters you want to use (i.e., previously-defined
+      ``LogFilter`` objects).
+   -  The collation servers that are to receive the log files.
+   -  The protocols you want to log. If the protocols tag is used, then
+      Traffic Server will only log transactions from the protocols
+      listed; otherwise, all transactions for all protocols are logged.
+   -  The origin servers you want to log. If the ``servers`` tag is
+      used, then Traffic Server will only log transactions for the
+      origin servers listed; otherwise, transactions for all origin
+      servers are logged.
+   -  The header text you want the log files to contain. The header text
+      appears at the beginning of the log file, just before the first
+      record.
+   -  The log file rolling options.
+
+In order to accomplish this, we
+
+1. edit the following variables in the
+   :file:`records.config` file:
+2. :ts:cv:`proxy.config.log.custom_logs_enabled`
+3. In the
+   :file:`logs_xml.config` file
+4. Add :ref:`LogFormat`, :ref:`LogFilters`, and :ref:`LogObject`
+   specifications to the configuration file.
+5. Save and close the :file:`logs_xml.config` file.
+6. Run the command :option:`traffic_line -x` to apply your configuration
+   changes.
+
+Creating Summary Log Files
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Traffic Server performs several hundred operations per second;
+therefore, event log files can quickly grow to large sizes. Using
+SQL-like aggregate operators, you can configure Traffic Server to create
+summary log files that summarize a set of log entries over a specified
+period of time. This can significantly reduce the size of the log files
+generated.
+
+To generate a summary log file, create a
+:ref:`LogFormat` object in the XML-based logging configuration file
+(:file:`logs_xml.config`) using
+the SQL-like aggregate operators below. You can apply each of these
+operators to specific fields, over a specified interval.
+
+-  ``COUNT``
+-  ``SUM``
+-  ``AVERAGE``
+-  ``FIRST``
+-  ``LAST``
+
+To create a summary log file format, we
+
+1. Define the format of the log file in
+   :file:`logs_xml.config` as
+   follows:
+
+   .. code-block:: xml
+
+       <LogFormat>
+         <Name = "summary"/>
+         <Format = "%<operator(field)> : %<operator(field)>"/>
+         <Interval = "n"/>
+       </LogFormat>
+
+   where ``operator`` is one of the five aggregate operators
+   (``COUNT``, ``SUM``, ``AVERAGE``, ``FIRST``, ``LAST``), ``field``
+   is the logging field you want to aggregate, and ``n`` is the
+   interval (in seconds) between summary log entries. You can specify
+   more than one ``operator`` in the format line. For more
+   information, refer to :file:`logs_xml.config`.
+
+2. Run the command :option:`traffic_line -x` to apply configuration changes .
+
+The following example format generates one entry every 10 seconds. Each
+entry contains the timestamp of the last entry of the interval, a count
+of the number of entries seen within that 10-second interval, and the
+sum of all bytes sent to the client: ::
+
+    <LogFormat>
+      <Name = "summary"/>
+      <Format = "%<LAST(cqts)> : %<COUNT(*)> : %<SUM(psql)>"/>
+      <Interval = "10"/>
+    </LogFormat>
+
+.. important::
+
+    You cannot create a format specification that contains
+    both aggregate operators and regular fields. For example, the following
+    specification would be **invalid**: ::
+
+        <Format = "%<LAST(cqts)> : %<COUNT(*)> : %<SUM(psql)> : %<cqu>"/>
+
+Choosing Binary or ASCII
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+You can configure Traffic Server to create event log files in either of
+the following:
+
+-  **ASCII**
+
+   These files are human-readable and can be processed using standard,
+   off-the-shelf log analysis tools. However, Traffic Server must
+   perform additional processing to create the files in ASCII, which
+   mildly impacts system overhead. ASCII files also tend to be larger
+   than the equivalent binary files. By default, ASCII log files have a
+   ``.log`` filename extension.
+
+-  **Binary**
+
+   These files generate lower system overhead and generally occupy less
+   space on the disk than ASCII files (depending on the type of
+   information being logged). However, you must use a converter
+   application before you can read or analyze binary files via standard
+   tools. By default, binary log files use a ``.blog`` filename
+   extension.
+
+While binary log files typically require less disk space, there are
+exceptions.
+
+For example: the value ``0`` (zero) requires only one byte to store in
+ASCII, but requires four bytes when stored as a binary integer.
+Conversely: if you define a custom format that logs IP addresses, then a
+binary log file would only require four bytes of storage per 32-bit
+address. However, the same IP address stored in dot notation would
+require around 15 characters (bytes) in an ASCII log file. Therefore,
+it's wise to consider the type of data that will be logged before you
+select ASCII or binary for your log files. For example, you might try
+logging for one day using ASCII and then another day using binary. If
+the number of requests is roughly the same for both days, then you can
+calculate a rough metric that compares the two formats.
+
+For standard log formats, select Binary or ASCII (refer to `Setting
+Standard Log File Format Options`). For the custom log
+format, specify ASCII or Binary mode in the
+:ref:`LogObject`
+(refer to :ref:`Using the Custom Format <using-custom-log-formats>`). In addition
+to the ASCII and binary options, you can also write custom log entries
+to a UNIX-named pipe (i.e., a buffer in memory). Other processes can
+then read the data using standard I/O functions. The advantage of using
+this option is that Traffic Server does not have to write to disk, which
+frees disk space and bandwidth for other tasks. In addition, writing to
+a pipe does not stop when logging space is exhausted because the pipe
+does not use disk space. Refer to
+:file:`logs_xml.config` for more information about the ``ASCII_PIPE`` option.
+
+
+Rolling Event Log Files
+-----------------------
+
+Traffic Server provides automatic log file rolling. This means that at
+specific intervals during the day or when log files reach a certain
+size, Traffic Server closes its current set of log files and opens new
+log files. Depending on the amount of traffic your servers are exposed
+to, you should roll log files several times a day. Rolling every six
+hours is a good guideline to start with.
+
+Log file rolling offers the following benefits:
+
+-  It defines an interval over which log analysis can be performed.
+-  It keeps any single log file from becoming too large and helps to
+   keep the logging system within the specified space limits.
+-  It provides an easy way to identify files that are no longer being
+   used so that an automated script can clean the logging directory and
+   run log analysis programs.
+
+Rolled Log Filename Format
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Traffic Server provides a consistent naming scheme for rolled log files
+that enables you to easily identify log files. When Traffic Server rolls
+a log file, it saves and closes the old file before it starts a new
+file. Traffic Server renames the old file to include the following
+information:
+
+-  The format of the file (such as ``squid.log``).
+-  The hostname of the Traffic Server that generated the log file.
+-  Two timestamps separated by a hyphen (``-``). The first timestamp is
+   a **lower bound** for the timestamp of the first record in the log
+   file. The lower bound is the time when the new buffer for log records
+   is created. Under low load, the first timestamp in the filename can
+   be different from the timestamp of the first entry. Under normal
+   load, the first timestamp in the filename and the timestamp of the
+   first entry are similar. The second timestamp is an **upper bound**
+   for the timestamp of the last record in the log file (this is
+   normally the rolling time).
+-  The suffix ``.old``, which makes it easy for automated scripts to
+   find rolled log files.
+
+Timestamps have the following format: ::
+
+    %Y%M%D.%Hh%Mm%Ss-%Y%M%D.%Hh%Mm%Ss
+
+The following table describes the format:
+
+``%Y``
+    The year in four-digit format. For example: 2000.
+
+``%M``
+    The month in two-digit format, from 01-12. For example: 07.
+
+``%D``
+    The day in two-digit format, from 01-31. For example: 19.
+
+``%H``
+    The hour in two-digit format, from 00-23. For example: 21.
+
+``%M``
+    The minute in two-digit format, from 00-59. For example: 52.
+
+``%S``
+    The second in two-digit format, from 00-59. For example: 36.
+
+The following is an example of a rolled log filename: ::
+
+     squid.log.mymachine.20110912.12h00m00s-20000913.12h00m00s.old
+
+The logging system buffers log records before writing them to disk. When
+a log file is rolled, the log buffer might be partially full. If it is,
+then the first entry in the new log file will have a timestamp earlier
+than the time of rolling. When the new log file is rolled, its first
+timestamp will be a lower bound for the timestamp of the first entry.
+
+For example, suppose logs are rolled every three hours, and the first
+rolled log file is: ::
+
+    squid.log.mymachine.20110912.12h00m00s-19980912.03h00m00s.old
+
+If the lower bound for the first entry in the log buffer at 3:00:00 is
+2:59:47, then the next log file will have the following timestamp when
+rolled: ::
+
+    squid.log.mymachine.20110912.02h59m47s-19980912.06h00m00s.old
+
+The contents of a log file are always between the two timestamps. Log
+files do not contain overlapping entries, even if successive timestamps
+appear to overlap.
+
+Rolling Intervals
+~~~~~~~~~~~~~~~~~
+
+Log files are rolled at specific intervals relative to a given hour of
+the day. Two options control when log files are rolled:
+
+-  The offset hour, which is an hour between 0 (midnight) and 23
+-  The rolling interval
+
+Both the offset hour and the rolling interval determine when log file
+rolling starts. Rolling occurs every rolling interval and at the offset
+hour. For example, if the rolling interval is six hours and the offset
+hour is 0 (midnight), then the logs will roll at midnight (00:00),
+06:00, 12:00, and 18:00 each day. If the rolling interval is 12 hours
+and the offset hour is 3, then logs will roll at 03:00 and 15:00 each
+day.
+
+Setting Log File Rolling Options
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To set log file rolling options and/or configure Traffic Server to roll
+log files when they reach a certain size, follow the steps below:
+
+1. In the :file:`records.config` file, edit the following variables
+
+   -  :ts:cv:`proxy.config.log.rolling_enabled`
+   -  :ts:cv:`proxy.config.log.rolling_size_mb`
+   -  :ts:cv:`proxy.config.log.rolling_offset_hr`
+   -  :ts:cv:`proxy.config.log.rolling_interval_sec`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+You can fine-tune log file rolling settings for a custom log file in the
+:ref:`LogObject`
+specification in the
+:file:`logs_xml.config` file.
+The custom log file uses the rolling settings in its
+:ref:`LogObject`,
+which override the default settings you specify in Traffic Manager or
+the :file:`records.config` file described above.
+
+Splitting Event Log Files
+-------------------------
+
+By default, Traffic Server uses standard log formats and generates log
+files that contain HTTP & ICP transactions in the same file. However,
+you can enable log splitting if you prefer to log transactions for
+different protocols in separate log files.
+
+ICP Log Splitting
+~~~~~~~~~~~~~~~~~
+
+When ICP log splitting is enabled, Traffic Server records ICP
+transactions in a separate log file with a name that contains
+``icp``. For example: if you enable the Squid format, then all ICP
+transactions are recorded in the ``squid-icp.log`` file. When you
+disable ICP log splitting, Traffic Server records all ICP transactions
+in the same log file as HTTP transactions.
+
+HTTP Host Log Splitting
+~~~~~~~~~~~~~~~~~~~~~~~
+
+HTTP host log splitting enables you to record HTTP transactions for
+different origin servers in separate log files. When HTTP host log
+splitting is enabled, Traffic Server creates a separate log file for
+each origin server that's listed in the :file:`log_hosts.config` file.
+When both ICP and HTTP host log splitting are enabled, Traffic Server generates
+separate log files for HTTP transactions (based on the origin server)
+and places all ICP transactions in their own respective log files. For
+example, if the :file:`log_hosts.config` file contains the two origin
+servers ``uni.edu`` and ``company.com`` and Squid format is enabled,
+then Traffic Server generates the following log files:
+
+``squid-uni.edu.log``
+    All HTTP transactions for ``uni.edu``
+
+``squid-company.com.log``
+    All HTTP transactions for ``company.com``
+
+``squid-icp.log``
+    All ICP transactions for all hosts
+
+``squid.log``
+    All HTTP transactions for other hosts
+
+If you disable ICP log splitting, then ICP transactions are placed in
+the same log file as HTTP transactions. Using the hosts and log format
+from the previous example, Traffic Server generates the log files below:
+
+``squid-uni.edu.log``
+    All entries for ``uni.edu``
+
+``squid-company.com.log``
+    All entries for ``company.com``
+
+``squid.log``
+    All other entries
+
+Traffic Server also enables you to create XML-based :ref:`Custom Log Formats <using-custom-log-formats>`
+that offer even greater control over log file generation.
+
+Setting Log Splitting Options
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To set log splitting options, follow the steps below:
+
+1. In the :file:`records.config` file, edit the following variables
+
+   -  :ts:cv:`proxy.config.log.separate_icp_logs`
+   -  :ts:cv:`proxy.config.log.separate_host_logs`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Editing the log_hosts.config File
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The default :file:`log_hosts.config` file is located in the Traffic Server
+``config`` directory. To record HTTP transactions for different origin
+servers in separate log files, you must specify the hostname of each
+origin server on a separate line in the :file:`log_hosts.config` file. For
+example, if you specify the keyword sports, then Traffic Server records
+all HTTP transactions from ``sports.yahoo.com`` and
+``www.foxsports.com`` in a log file called ``squid-sports.log`` (if the
+Squid format is enabled).
+
+.. note::
+
+    If Traffic Server is clustered and you enable log file
+    collation, then you should use the same :file:`log_hosts.config` file on
+    every Traffic Server node in the cluster.
+
+To edit the :file:`log_hosts.config` file follow the steps below:
+
+1. In the :file:`log_hosts.config` file,
+   enter the hostname of each origin server on a separate line in the
+   file, e.g.: ::
+
+       webserver1
+       webserver2
+       webserver3
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Collating Event Log Files
+-------------------------
+
+You can use the Traffic Server log file collation feature to collect all
+logged information in one place. Log collation enables you to analyze a
+set of Traffic Server clustered nodes as a whole (rather than as
+individual nodes) and to use a large disk that might only be located on
+one of the nodes in the cluster. Traffic Server collates log files by
+using one or more nodes as log collation servers and all remaining nodes
+as log collation clients. When a Traffic Server node generates a buffer
+of event log entries, it first determines if it is the collation server
+or a collation client. The collation server node writes all log buffers
+to its local disk, just as it would if log collation was not enabled.
+Log collation servers can be standalone or they can be part of a node
+running Traffic Server.
+
+The collation client nodes prepare their log buffers for transfer across
+the network and send the buffers to the log collation server. When the
+log collation server receives a log buffer from a client, it writes it
+to its own log file as if it was generated locally. For a visual
+representation of this, see the figure below.
+
+.. figure:: ../static/images/admin/logcolat.jpg
+   :align: center
+   :alt: Log collation
+
+   Log collation
+
+If log clients cannot contact their log collation server, then they
+write their log buffers to their local disks, into *orphan* log files.
+Orphan log files require manual collation.
+
+.. note::
+
+    Log collation can have an impact on network performance.
+    Because all nodes are forwarding their log data buffers to the single
+    collation server, a bottleneck can occur. In addition, collated log
+    files contain timestamp information for each entry, but entries in the
+    files do not appear in strict chronological order. You may want to sort
+    collated log files before doing analysis.
+
+To configure Traffic Server to collate event log files, you must perform
+the following tasks:
+
+-  Either `Configure Traffic Server Node to Be a Collation
+   Server <Configuring Traffic Server to Be a Collation Server>`_ or install & configure a
+   `Standalone Collator <Using a Standalone Collator>`_
+-  `Configure Traffic Server Nodes to Be a Collation
+   Clients <Configuring Traffic Server to Be a Collation Server>`_.
+-  Add an attribute to the
+   :ref:`LogObject`
+   specification in the
+   :file:`logs_xml.config` file
+   if you are using custom log file formats; refer to `Collating Custom
+   Event Log Files`_.
+
+Configuring Traffic Server to Be a Collation Server
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To configure a Traffic Server node to be a collation server, simply edit
+a configuration file via the steps below.
+
+1. In the :file:`records.config`  file, edit the following variables
+
+   -  :ts:cv:`proxy.local.log.collation_mode` (``1`` for server mode)
+   -  :ts:cv:`proxy.config.log.collation_port`
+   -  :ts:cv:`proxy.config.log.collation_secret`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+.. note::
+
+    If you modify the ``collation_port`` or ``secret`` after
+    connections between the collation server and collation clients have been
+    established, then you must restart Traffic Server.
+
+Using a Standalone Collator
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you do not want the log collation server to be a Traffic Server node,
+then you can install and configure a standalone collator (SAC) that will
+dedicate more of its power to collecting, processing, and writing log
+files.
+
+To install and configure a standalone collator:
+
+1. Configure your Traffic Server nodes as log collation clients; refer
+   to `Configuring Traffic Server to Be a Collation
+   Client <#ConfiguringTSCollationClient>`_.
+2. Copy the :program:`traffic_sac` binary from the Traffic Server ``bin``
+   directory and
+3. Copy the ``libtsutil.so`` libraries from the Traffic Server ``lib``
+   directory to the machine serving as the standalone collator.
+4. Create a directory called ``config`` in the directory that contains
+   the :program:`traffic_sac` binary.
+5. Create a directory called ``internal`` in the ``config`` directory
+   you created in Step 4 (above). This directory is used internally by
+   the standalone collator to store lock files.
+6. Copy the :file:`records.config` file from a Traffic Server node
+   configured to be a log collation client to the ``config`` directory
+   you created in Step 4 on the standalone collator.
+   The :file:`records.config` file contains the log collation secret and
+   the port you specified when configuring Traffic Server nodes to be
+   collation clients. The collation port and secret must be the same for
+   all collation clients and servers.
+7. In the :file:`records.config`
+   file, edit the following variable
+
+   -  :ts:cv:`proxy.config.log.logfile_dir`
+
+8. Enter the following command::
+
+      traffic_sac -c config
+
+Configuring Traffic Server to Be a Collation Client
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To configure a Traffic Server node to be a collation client, follow the
+steps below. If you modify the ``collation_port`` or ``secret`` after
+connections between the collation clients and the collation server have
+been established, then you must restart Traffic Server.
+
+1. In the :file:`records.config` file, edit the following variables:
+
+   -  :ts:cv:`proxy.local.log.collation_mode`: ``2`` to configure this node as log collation client and send
+      standard formatted log entries to the collation server.
+      For XML-based formatted log entries, see :file:`logs_xml.config`
+      file; refer to :ref:`Using the Custom Format <using-custom-log-formats>`.
+   -  :ts:cv:`proxy.config.log.collation_host`
+   -  :ts:cv:`proxy.config.log.collation_port`
+   -  :ts:cv:`proxy.config.log.collation_secret`
+   -  :ts:cv:`proxy.config.log.collation_host_tagged`
+   -  :ts:cv:`proxy.config.log.max_space_mb_for_orphan_logs`
+
+2. Run the command :option:`traffic_line -x` to apply the configuration
+   changes.
+
+Collating Custom Event Log Files
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you use custom event log files, then you must edit the
+:file:`logs_xml.config` file (in addition to configuring a collation server
+and collation clients).
+
+To collate custom event log files
+
+1. On each collation client, edit the `:file:`logs_xml.config`
+2. Add the
+   :ref:`CollationHost <logs-xml-logobject-collationhost>` attribute to the
+   :ref:`LogObject`
+   specification: ::
+
+       <LogObject>
+         <Format = "squid"/>
+         <Filename = "squid"/>
+         <CollationHosts="ipaddress:port"/>
+       </LogObject>
+
+   where ``ipaddress`` is the hostname or IP address of the collation
+   server to which all log entries (for this object) are forwarded, and
+   ``port`` is the port number for communication between the collation
+   server and collation clients.
+
+3. Run the command :option:`traffic_line -L` to restart Traffic Server on the
+   local node or :option:`traffic_line -M` to restart Traffic Server on all
+   the nodes in a cluster.
+
+Viewing Logging Statistics
+==========================
+
+Traffic Server generates logging statistics that enable you to see the
+following information:
+
+-  How many log files (formats) are currently being written.
+-  The current amount of space used by the logging directory, which
+   contains all event and error logs.
+-  The number of access events written to log files since Traffic Server
+   installation. This counter represents one entry in one file; if
+   multiple formats are being written, then a single event creates
+   multiple event log entries.
+-  The number of access events skipped (because they were filtered)
+   since Traffic Server installation.
+-  The number of access events written to the event error log since
+   Traffic Server installation.
+
+You can retrieve the statistics via the Traffic Line command-line
+interface; refer to `Monitoring Traffic <../monitoring-traffic>`_.
+
+Viewing Log Files
+=================
+
+You can view the system, event, and error log files Traffic Server
+creates. You can also delete a log file or copy it to your local system
+if you have the correct user permissions. Traffic Server displays only
+one MB of information in the log file. If the log file you select to
+view is bigger than 1MB, then Traffic Server truncates the file and
+displays a warning message indicating that the file is too big.
+
+Online Event Log XML Builder
+============================
+
+If you need any assistance building your event log, you can try out our
+`online log builder <http://trafficserver.apache.org/logbuilder/>`_. This is a work in progress, so any
+comments, critique or suggestions are most welcome.
+
+Example Event Log File Entries
+==============================
+
+This section shows an example log file entry in each of the standard log
+formats supported by Traffic Server: Squid, Netscape Common, Netscape Extended,
+and Netscape Extended-2.
+
+.. _log-formats-squid-format:
+
+Squid Format
+------------
+
+The following figure shows a sample log entry in a ``squid.log`` file.
+
+.. figure:: ../static/images/admin/squid_format.jpg
+   :align: center
+   :alt: Sample log entry in squid.log
+
+   Sample log entry in squid.log
+
+====== ========= =============================================================================
+Field  Symbol    Description
+====== ========= =============================================================================
+1      cqtq      The client request timestamp in Squid format; the time of the client
+                 request in seconds since January 1, 1970 UTC (with millisecond resolution).
+2      ttms      The time Traffic Server spent processing the client request; the
+                 number of milliseconds between the time the client established the
+                 connection with Traffic Server and the time Traffic Server sent the
+                 last byte of the response back to the client.
+3      chi       The IP address of the client’s host machine.
+4      crc/pssc  The cache result code; how the cache responded to the request:
+                 ``HIT``, ``MISS``, and so on. Cache result codes are described
+                 :ref:`here <squid-netscape-result-codes>`.
+                 The proxy response status code (the HTTP response status code from
+                 Traffic Server to client).
+5      psql      The length of the Traffic Server response to the client in bytes,
+                 including headers and content.
+6      cqhm      The client request method: ``GET``, ``POST``, and so on.
+7      cauc      The client request canonical URL; blanks and other characters that
+                 might not be parsed by log analysis tools are replaced by escape
+                 sequences. The escape sequence is a percentage sign followed by the
+                 ASCII code number of the replaced character in hex.
+8      caun      The username of the authenticated client. A hyphen (``-``) means
+                 that no authentication was required.
+9      phr/pqsn  The proxy hierarchy route; the route Traffic Server used to retrieve
+                 the object.
+10     psct      The proxy response content type; the object content type taken from
+                 the Traffic Server response header.
+====== ========= =============================================================================
+
+Squid log in XML
+~~~~~~~~~~~~~~~~
+
+This is the equivalent XML configuration for the log above::
+
+    <LogFormat>
+      <Name = "squid"/>
+      <Format = "%<cqtq> %<ttms> %<chi> %<crc>/%<pssc> %<psql> %<cqhm> %<cquc>
+                 %<caun> %<phr>/%<pqsn> %<psct>"/>
+    </LogFormat>
+
+Netscape Common
+---------------
+
+.. figure:: ../static/images/admin/netscape_common_format.jpg
+   :align: center
+   :alt: Sample log entry in common.log
+
+   Sample log entry in common.log
+
+====== ========= =============================================================================
+Field  Symbol    Description
+====== ========= =============================================================================
+1      chi       The IP address of the client's host machine.
+2      --        This hyphen (``-``) is always present in Netscape log entries.
+3      caun      The authenticated client username. A hyphen (``-``) means no
+                 authentication was required.
+4      cqtd      The date and time of the client request, enclosed in brackets.
+5      cqtx      The request line, enclosed in quotes.
+6      pssc      The proxy response status code (HTTP reply code).
+7      pscl      The length of the Traffic Server response to the client in bytes.
+====== ========= =============================================================================
+
+Netscape Common in XML
+~~~~~~~~~~~~~~~~~~~~~~
+
+This is the equivalent XML configuration for the log above::
+
+    <LogFormat>
+      <Name = "common"/>
+      <Format = "%<chi> - %<caun> [%<cqtn>] \"%<cqtx>\" %<pssc> %<pscl>"/>
+    </LogFormat>
+
+Netscape Extended
+-----------------
+
+.. figure:: ../static/images/admin/netscape_extended_format.jpg
+   :align: center
+   :alt: Sample log entry in extended.log
+
+   Sample log entry in extended.log
+
+In addition to field 1-7 from the Netscape Common log format above, the Extended format also adds
+the following fields:
+
+====== ========= =============================================================================
+Field  Symbol    Description
+====== ========= =============================================================================
+8      sssc      The origin server response status code.
+9      sshl      The server response transfer length; the body length in the origin
+                 server response to Traffic Server, in bytes.
+10     cqbl      The client request transfer length; the body length in the client
+                 request to Traffic Server, in bytes.
+11     pqbl      The proxy request transfer length; the body length in the Traffic
+                 Server request to the origin server.
+12     cqhl      The client request header length; the header length in the client
+                 request to Traffic Server.
+13     pshl      The proxy response header length; the header length in the Traffic
+                 Server response to the client.
+14     pqhl      The proxy request header length; the header length in Traffic Server
+                 request to the origin server.
+15     sshl      The server response header length; the header length in the origin
+                 server response to Traffic Server.
+16     tts       The time Traffic Server spent processing the client request; the
+                 number of seconds between the time that the client established the
+                 connection with Traffic Server and the time that Traffic Server sent
+                 the last byte of the response back to the client.
+====== ========= =============================================================================
+
+Netscape Extended in XML
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+This is the equivalent XML configuration for the log above::
+
+    <LogFormat>
+      <Name = "extended"/>
+      <Format = "%<chi> - %<caun> [%<cqtn>] \"%<cqtx>\" %<pssc> %<pscl> 
+         %<sssc> %<sscl> %<cqbl> %<pqbl> %<cqhl> %<pshl> %<pqhl> %<sshl> %<tts>"/>
+    </LogFormat>
+
+Netscape Extended2
+------------------
+
+.. figure:: ../static/images/admin/netscape_extended2_format.jpg
+   :align: center
+   :alt: Sample log entry in extended2.log
+
+   Sample log entry in extended2.log
+
+In addition to field 1-16 from the log formats above, the Extended2 format also adds
+the following fields:
+
+====== ========= =============================================================================
+Field  Symbol    Description
+====== ========= =============================================================================
+17     phr       The proxy hierarchy route; the route Traffic Server used to retrieve
+                 the object.
+18     cfsc      The client finish status code: ``FIN`` if the client request
+                 completed successfully or ``INTR`` if the client request was
+                 interrupted.
+19     pfsc      The proxy finish status code: ``FIN`` if the Traffic Server request
+                 to the origin server completed successfully or ``INTR`` if the
+		 request was interrupted.
+20     crc       The cache result code; how the Traffic Server cache responded to the
+                 request: HIT, MISS, and so on. Cache result codes are described
+                 :ref:`here <squid-netscape-result-codes>`.
+====== ========= =============================================================================
+
+Netscape Extended2 in XML
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This is the equivalent XML configuration for the log above::
+
+    <LogFormat>
+      <Name = "extended2"/>
+      <Format = "%<chi> - %<caun> [%<cqtn>] \"%<cqtx>\" %<pssc> %<pscl> 
+                 %<sssc> %<sscl> %<cqbl> %<pqbl> %<cqhl> %<pshl> %<pqhl> %<sshl> %<tts> %<phr> %<cfsc> %<pfsc> %<crc>"/>
+    </LogFormat>
+
+.. _squid-netscape-result-codes:
+
+Squid- and Netscape-format: Cache Result Codes
+==============================================
+
+The following table describes the cache result codes in Squid and
+Netscape log files.
+
+``TCP_HIT``
+    A valid copy of the requested object was in the cache and Traffic
+    Server sent the object to the client.
+
+``TCP_MISS``
+    The requested object was not in cache, so Traffic Server retrieved
+    the object from the origin server (or a parent proxy) and sent it to
+    the client.
+
+``TCP_REFRESH_HIT``
+    The object was in the cache, but it was stale. Traffic Server made an 
+    ``if-modified-since`` request to the origin server and the
+    origin server sent a ``304`` not-modified response. Traffic
+    Server sent the cached object to the client.
+
+``TCP_REF_FAIL_HIT``
+    The object was in the cache but was stale. Traffic Server made an
+    ``if-modified-since`` request to the origin server but the server
+    did not respond. Traffic Server sent the cached object to the
+    client.
+
+``TCP_REFRESH_MISS``
+    The object was in the cache but was stale. Traffic Server made an
+    ``if-modified-since`` request to the origin server and the server
+    returned a new object. Traffic Server served the new object to the
+    client.
+
+``TCP_CLIENT_REFRESH``
+    The client issued a request with a ``no-cache`` header. Traffic
+    Server obtained the requested object from the origin server and sent
+    a copy to the client. Traffic Server deleted the previous copy of
+    the object from cache.
+
+``TCP_IMS_HIT``
+    The client issued an ``if-modified-since`` request and the object
+    was in cache & fresher than the IMS date, **or** an
+    ``if-modified-since`` request to the origin server revealed the
+    cached object was fresh. Traffic Server served the cached object to
+    the client.
+
+``TCP_IMS_MISS``
+    The client issued an
+    ``if-modified-since request``, and the object was either not in
+    cache or was stale in cache. Traffic Server sent an
+    ``if-modified-since request`` to the origin server and received the
+    new object. Traffic Server sent the updated object to the client.
+
+``TCP_SWAPFAIL``
+    The object was in the cache but could not be accessed. The client
+    did not receive the object.
+
+``ERR_CLIENT_ABORT``
+    The client disconnected before the complete object was sent.
+
+``ERR_CONNECT_FAIL``
+    Traffic Server could not reach the origin server.
+
+``ERR_DNS_FAIL``
+    The Domain Name Server (DNS) could not resolve the origin server
+    name, or no DNS could be reached.
+
+``ERR_INVALID_REQ``
+    The client HTTP request was invalid. (Traffic Server forwards
+    requests with unknown methods to the origin server.)
+
+``ERR_READ_TIMEOUT``
+    The origin server did not respond to Traffic Server's request within
+    the timeout interval.
+
+``ERR_PROXY_DENIED``
+    Client service was denied.
+
+``ERR_UNKNOWN``
+    The client connected, but subsequently disconnected without sending
+    a request.
diff --git a/doc/arch/cache/cache-api.en.rst b/doc/arch/cache/cache-api.en.rst
new file mode 100644
index 00000000..7a9963e9
--- /dev/null
+++ b/doc/arch/cache/cache-api.en.rst
@@ -0,0 +1,42 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. include:: common.defs
+
+===========================
+Cache Related API functions
+===========================
+
+.. c:function:: void TSHttpTxnReqCacheableSet(TSHttpTxn txnp, int flag)
+
+   Set a *flag* that marks a request as cacheable. This is a positive override only, setting *flag* to 0 restores the default behavior, it does not force the request to be uncacheable.
+
+.. c:function:: TSReturnCode TSCacheUrlSet(TSHttpTxn txnp, char const* url, int length)
+
+  Set the cache key for the transaction *txnp* as the string pointed at by *url* of *length* characters. It need not be ``null`` terminated. This should be called from ``TS_HTTP_READ_REQUEST_HDR_HOOK`` which is before cache lookup but late enough that the HTTP request header is available.
+
+===============
+Cache Internals
+===============
+
+.. cpp:function::    int DIR_SIZE_WITH_BLOCK(int big)
+
+   A preprocessor macro which computes the maximum size of a fragment based on the value of *big*. This is computed as if the argument where the value of the *big* field in a struct :cpp:class:`Dir`.
+
+.. cpp:function::    int DIR_BLOCK_SIZE(int big)
+
+   A preprocessor macro which computes the block size multiplier for a struct :cpp:class:`Dir` where *big* is the *big* field value.
diff --git a/doc/arch/cache/cache-appendix.en.rst b/doc/arch/cache/cache-appendix.en.rst
new file mode 100644
index 00000000..2b69adca
--- /dev/null
+++ b/doc/arch/cache/cache-appendix.en.rst
@@ -0,0 +1,99 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. include:: common.defs
+
+Cache Tools
+~~~~~~~~~~~
+
+Tools and techniques for cache monitoring and inspection.
+
+* :ref:`The cache inspector <inspecting-the-cache>`.
+
+Topics to be done
+~~~~~~~~~~~~~~~~~
+
+* Resident alternates
+* Object refresh
+
+Cache Consistency
+~~~~~~~~~~~~~~~~~
+
+The cache is completely consistent, up to and including kicking the power cord out, if the write buffer on consumer disk drives is disabled. You need to use::
+
+  hdparm -W0
+
+The cache validates that all the data for the document is available and will silently mark a partial document as a "miss" on read. There is no "gentle" shutdown for traffic server, you just kill the process, so the "recovery" code (fsck) is run every time traffic server starts up.
+
+On startup the two versions of the index are checked, and the last valid one is read into memory. Then traffic server moves forward from the last snapped write cursor and reads all the fragments written to disk, and updates the directory (as in a log-based file system). It stops reading at the write before the last valid write header it sees (as a write is not necessarily atomic because of sector reordering). Then the new updated index is written to the invalid version (in case of a crash during startup) and the system starts.
+
+.. _volume tagging:
+
+Volume Tagging
+~~~~~~~~~~~~~~
+
+Currently cache volumes are allocated somewhat arbitrarily from storage elements. `This enhancement <https://issues.apache.org/jira/browse/TS-1728>`__ allows the :file:`storage.config` file to assign storage units to specific volumes although the volumes must still be listed in :file:`volume.config` in general and in particular to map domains to specific volumes. A primary use case for this is to be able to map specific types of content to different storage elements. This could to have different storage devices for the content (SSD vs. rotational).
+
+---------------
+Version Upgrade
+---------------
+
+It is currently the case that any change to the cache format will clear the cache. This is an issue when upgrading the |TS| version and should be kept in mind.
+
+.. cache-key:
+
+-------------------------
+Controlling the cache key
+-------------------------
+
+The cache key is by default the URL of the request. There are two possible choices, the original ("pristine") URL and the remapped URL. Which of these is used is determined by the configuration value  :ts:cv:`proxy.config.url_remap.pristine_host_hdr`.
+
+This is an ``INT`` value. If set to ``0`` (disabled) then the remapped URL is used, and if it is not ``0`` (enabled) then the original URL is used. This setting also controls the value of the ``HOST`` header that is placed in the request sent to the origin server, using hostname from the original URL if non-``0`` and the host name from the remapped URL if ``0``. It has no other effects.
+
+For caching, this setting is irrelevant if no remapping is done or there is a one to one mapping between the original and remapped URLs.
+
+It becomes significant if multiple original URLs are mapped to the same remapped URL. If pristine headers are enabled requests to different original URLs will be stored as distinct objects in the cache. If disabled the remapped URL will be used and there may be collisions. This is bad if the contents different but quite useful if they are the same (e.g., the original URLs are just aliases for the same underlying server).
+
+This is also an issue if a remapping is changed because it is effectively a time axis version of the previous case. If an original URL is remapped to a different server address then the setting determines if existing cached objects will be served for new requests (enabled) or not (disabled). Similarly if the original URL mapped to a particular URL is changed then cached objects from the initial original URL will be served from the updated original URL if pristine headers is disabled.
+
+These collisions are not of themselves good or bad. An administrator needs to decide which is appropriate for their situation and set the value correspondingly.
+
+If a greater degree of control is desired a plugin must be used to invoke the API call :c:func:`TSCacheUrlSet()` to provide a specific cache key.  The :c:func:`TSCacheUrlSet()` API can be called as early as ``TS_HTTP_READ_REQUEST_HDR_HOOK``, but no later than ``TS_HTTP_POST_REMAP_HOOK``. It can be called only once per transaction; calling it multiple times has no additional effect.
+
+A plugin that changes the cache key *must* do so consistently for both cache hit and cache miss requests because two different requests that map to the same cache key will be considered equivalent by the cache. Use of the URL directly provides this and so must any substitute. This is entirely the responsibility of the plugin, there is no way for the |TS| core to detect such an occurrence.
+
+If :c:func:`TSHttpTxnCacheLookupUrlGet()` is called after new cache url set by :c:func:`TSCacheUrlSet()`, it should use a URL location created by :c:func:`TSUrlCreate()` as its 3rd input parameter instead of getting url_loc from client request.
+
+It is a requirement that the string be syntactically a URL but otherwise it is completely arbitrary and need not have any path. For instance if the company Network Geographics wanted to store certain content under its own cache key, using a document GUID as part of the key, it could use a cache key like ::
+
+   ngeo://W39WaGTPnvg
+
+The scheme ``ngeo`` was picked because it is *not* a valid URL scheme and so will not collide with any valid URL.
+
+This can be useful if the URL encodes both important and unimportant data. Instead of storing potentially identical content under different URLs (because they differ on the unimportant parts) a url containing only the important parts could be created and used.
+
+For example, suppose the URL for Network Geographics content encoded both the document GUID and a referral key. ::
+
+   http://network-geographics-farm-1.com/doc/W39WaGTPnvg.2511635.UQB_zCc8B8H
+
+We don't want to the same content for every possible referrer. Instead we could use a plugin to convert this to the previous example and requests that differed only in the referrer key would all reference the same cache entry. Note that we would also map ::
+
+   http://network-geographics-farm-56.com/doc/W39WaGTPnvg.2511635.UQB_zCc8B8H
+
+to the same cache key. This can be handy for "sharing" content between servers when that content is identical. Note also the plugin can change the cache key or not depending on any data in the request header, for instance not changing the cache key if the request is not in the ``doc`` directory. If distinguishing servers is important that can easily be pulled from the request URL and used in the synthetic cache key. The implementor is free to extract all relevant elements for use in the cache key.
+
+While there is explicit no requirement that the synthetic cache key be based on the HTTP request header, in practice it is generally necessary due to the consistency requirement. Because cache lookup happens before attempting to connect to the origin server no data from the HTTP response header is available, leaving only the request header. The most common case is the one described above where the goal is to elide elements of the URL that do not affect the content to minimize cache footprint and improve cache hit rates.
diff --git a/doc/arch/cache/cache-arch.en.rst b/doc/arch/cache/cache-arch.en.rst
new file mode 100644
index 00000000..85384efb
--- /dev/null
+++ b/doc/arch/cache/cache-arch.en.rst
@@ -0,0 +1,854 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Cache Architecture
+******************
+
+.. include:: common.defs
+
+Introduction
+~~~~~~~~~~~~
+
+In addition to an HTTP proxy, |ATS| is also an HTTP cache. |TS| can cache any octet stream although it currently
+supports only those octet streams delivered by the HTTP protocol. When such a stream is cached (along with the HTTP
+protocol headers) it is termed an :term:`object <cache object>` in the cache. Each object is identified by a globally
+unique value called a :term:`cache key`.
+
+The purpose of this document is to describe the basic structure and implementation details of the |TS| cache.
+Configuration of the cache will be discussed only to the extent needed to understand the internal mechanisms. This
+document will be useful primarily to |TS| developers working on the |TS| codebase or plugins for |TS|. It is assumed the
+reader is already familiar with the :ref:`admin-guide` and specifically with :ref:`http-proxy-caching` and
+:ref:`configuring-the-cache` along with the associated configuration files and values.
+
+Unfortunately the internal terminology is not particularly consistent so this document will frequently use terms in
+different ways than they are used in the code in an attempt to create some consistency.
+
+Cache Layout
+~~~~~~~~~~~~
+
+The following sections describe how persistent cache data is structured. |TS| treats its persisent storage an
+undifferentiated collection of bytes, assuming no other structure to it. In particular it does not use the file system
+of the host operating system. If a file is used it is used only to mark out the set of bytes to be used.
+
+Cache storage
+=============
+
+The raw storage for the |TS| cache is configured in :file:`storage.config`. Each line in the file defines a :term:`cache
+span` which is treated as a uniform persistent store.
+
+.. figure:: images/cache-spans.png
+   :align: center
+
+   Two cache spans
+
+This storage organized in to a set of :term:`cache volume`\ s which are defined in :file:`volume.config` for the
+purposes of the administrator. These are the units that used for all other administator level configuration.
+
+Cache volumes can be defined by a percentage of the total storage or an absolute amount of storage. By default each
+cache volume is spread across all of the cache spans for robustness. The intersection of a cache volume and a cache span
+is a :term:`cache stripe`. Each cache span is divided in to cache stripes and each cache volume is a collection of those
+stripes.
+
+If the cache volumes for the example cache spans were defined as
+
+.. image:: images/ats-cache-volume-definition.png
+   :align: center
+
+then the actual layout would look like
+
+.. image:: images/cache-span-layout.png
+   :align: center
+
+Cache stripes are the fundamental unit of cache for the implementation. A cached object is stored entirely in a single
+stripe, and therefore in a single cache span - objects are never split across cache spans or volumes. Objects are
+assigned to a stripe (and hence to a cache volume) automatically based on a hash of the URI used to retrieve the object
+from the origin server. It is possible to configure this to a limited extent in :file:`hosting.config` which supports
+content from specific host or domain to be stored on specific cache volumes. In addition, as of version 4.0.1 it is
+possible to control which cache spans (and hence, which cache stripes) are contained in a specific cache volume.
+
+The layout and structure of the cache spans, the cache volumes, and the cache stripes that compose them are derived
+entirely from the :file:`storage.config` and :file:`cache.config` and is recomputed from scratch when the
+:program:`traffic_server` is started. Therefore any change to those files can (and almost always will) invalidate the
+existing cache in its entirety.
+
+Stripe Structure
+================
+
+|TS| treats the storage associated with a cache stripe as an undifferentiated span of bytes. Internally each stripe is
+treated almost entirely independently. The data structures described in this section are duplicated for each stripe.
+Internally the term "volume" is used for these stripes and implemented primarily in :cpp:class:`Vol`. What a user thinks
+of as a volume (what this document calls a "cache volume") is represented by :cpp:class:`CacheVol`.
+
+.. note::
+
+   Stripe assignment must be done before working with an object because the directory is local to the stripe. Any cached
+   objects for which the stripe assignment is changed are effectively lost as their directory data will not be found in
+   the new stripe.
+
+.. index:: cache directory
+.. _cache-directory:
+
+Cache Directory
+---------------
+
+.. index:: directory entry
+.. index:: fragment
+.. index:: cache ID
+
+.. _fragment:
+
+Content in a stripe is tracked via a directory. We call each element of the directory a "directory entry" and each is
+represented by :cpp:class:`Dir`. Each entry refers to a chunk of contiguous storage in the cache. These are referred to
+variously as "fragments", "segments", "docs" / "documents", and a few other things. This document will use the term
+"fragment" as that is the most common reference in the code. The term "Doc" (for :cpp:class:`Doc`) will be used to refer
+to the header data for a fragment. Overall the directory is treated as a hash with the :term:`cache ID` as the key. See
+:ref:`directory probing <cache-directory-probe>` for how the cache ID is used to locate a directory entry. The cache ID
+is in turn computed from a :term:`cache key` which by default is the URL of the content.
+
+The directory is used as a memory resident structure which means a directory entry is as small as possible (currently 10
+bytes). This forces some compromises on the data that can be stored there. On the other hand this means that most cache
+misses do not require disk I/O which has a large performance benefit.
+
+An additional point is the directory is always fully sized. Once a stripe is initialized the directory size is
+fixed and never changed. This size is related (roughly linearly) to the size of the stripe. It is for this reason the
+memory footprint of |TS| depends strongly on the size of the disk cache. Because the directory size does not change,
+neither does this memory requirement so |TS| does not consume more memory as more content is stored in the cache. If
+there is enough memory to run |TS| with an empty cache there is enough to run it with a full cache.
+
+.. figure:: images/cache-directory-structure.png
+   :align: center
+
+Each entry stores an offset in the stripe and a size. The size stored in the directory entry is an :ref:`approximate
+size <dir-size>` which is at least as big as the actual data in the fragment. Exact size data is stored in the fragment
+header on disk.
+
+.. note::
+
+   Data in HTTP headers cannot be examined without disk I/O. This includes the original URL for the object. The cache
+   key is not stored explicitly and therefore cannot be reliably retrieved.
+
+The directory is a hash table that uses `chaining
+<http://en.wikibooks.org/wiki/Data_Structures/Hash_Tables#Collision_resolution>`_ for collision resolution. Because each
+entry is small they are used directly as the list header of the hash bucket.
+
+.. _dir-segment:
+.. _dir-bucket:
+
+Chaining is implemented by imposing grouping structures on the entries in a directory. The first level grouping is a
+:term:`directory bucket`. This is a fixed number (currently 4 - defined as ``DIR_DEPTH``) of entries. This
+serves to define the basic hash buckets with the first entry in each cache bucket serving as the root of the hash
+bucket.
+
+.. note::
+
+   The term "bucket" is used in the code to mean both the conceptual bucket for hashing and for a structural grouping
+   mechanism in the directory and so these will be qualified as needed to distinguish them. The unqualified term
+   "bucket" is almost always used to mean the structural grouping in the directory.
+
+Directory buckets are grouped in to :term:`segments <directory segment>`. All segments in a stripe have the same number of
+buckets. The number of segments in a stripe is chosen so that each segment has as many buckets as possible without
+exceeding 65535 (2\ :sup:`16`\ -1) entries in a segment.
+
+.. figure:: images/dir-segment-bucket.png
+   :align: center
+
+Each directory entry has a previous and next index value which is used to link entries in the same segment. Because no
+segment has more than 65535 entries 16 bits suffices for storing the index values. The stripe header contains an array
+of entry indices which are used as the roots of entry free lists, one for each segment. Active entries are stored via
+the bucket structure. When a stripe is initialized the first entry in each bucket is zeroed (marked unused) and all
+other entries are put in the corresponding segment free list in the stripe header. This means the first entry of each
+directory bucket is used as the root of a hash bucket and is therefore marked unused rather than being put a free list.
+The other entries in the directory bucket are preferentially preferred for adding to the corresponding hash bucket but
+this is not required. The segment free lists are initialized such that the extra bucket entries are added in order - all
+the seconds, then the thirds, then the fourths. Because the free lists are FIFOs this means extra entries will be
+selected from the fourth entries across all the buckets first, then the thirds, etc. When allocating a new directory
+entry in a bucket the entries are searched from first to last, which maximizes bucket locality (that is, cache IDs that
+map to the same hash bucket will also tend to use the same directory bucket).
+
+.. figure:: images/dir-bucket-assign.png
+   :align: center
+
+Entries are removed from the free list when used and returned when no longer in use. When a fragment needs to be put in
+to the directory the cache ID is used to locate a hash bucket (which also determines the segment and directory bucket).
+If the first entry in the directory bucket is marked unused, it is used. If not then the other entries in the bucket are
+searched and if any are on the free list, that entry is used. If none are available then the first entry on the segment
+free list is used. This entry is attached to the hash bucket via the same next and previous indices used for the free
+list so that it can be found when doing a lookup of a cache ID.
+
+Storage Layout
+--------------
+
+The storage layout is the stripe metadata followed by cached content. The metadata consists of three parts - the stripe
+header, the directory, and the stripe footer. The metadata is stored twice. The header and the footer are instances of
+:cpp:class:`VolHeaderFooter`. This is a stub structure which can have a trailing variable sized array. This array is
+used as the segment free list roots in the directory. Each contains the segment index of the first element of the free
+list for the segment. The footer is a copy of the header without the segment free lists. This makes the size of the
+header dependent on the directory but not that of the footer.
+
+.. figure:: images/cache-stripe-layout.png
+   :align: center
+
+Each stripe has several values that describe its basic layout.
+
+skip
+   The start of stripe data. This represents either space reserved at the start of a physical device to avoid problems
+   with the host operating system, or an offset representing use of space in the cache span by other stripes.
+
+start
+   The offset for the start of the content, after the stripe metadata.
+
+length
+   Total number of bytes in the stripe. :cpp:member:`Vol::len`.
+
+data length
+   Total number of blocks in the stripe available for content storage. :cpp:member:`Vol::data_blocks`.
+
+.. note:: Great care must be taken with sizes and lengths in the cache code because there are at least three different metrics (bytes, cache blocks, store blocks) used in various places.
+
+The total size of the directory (the number of entries) is computed by taking the size of the stripe and dividing by the
+average object size. The directory always consumes this amount of memory which has the effect that if cache size is
+increased so is the memory requirement for |TS|. The average object size defaults to 8000 bytes but can be configured
+using :ts:cv:`proxy.config.cache.min_average_object_size`. Increasing the average object size will reduce the memory
+footprint of the directory at the expense of reducing the number of distinct objects that can be stored in the cache
+[#]_.
+
+.. index: write cursor
+.. _write-cursor:
+
+The content area stores the actual objects and is used as a circular buffer where new objects overwrite the least
+recently cached objects. The location in a stripe where new cache data is written is called the *write cursor*. This
+means that objects can be de facto evicted from cache even if they have not expired if the data is overwritten by the
+write cursor. If an object is overwritten this is not detected at that time and the directory is not updated. Instead it
+will be noted if the object is accessed in the future and the disk read of the fragment fails.
+
+.. figure:: images/ats-cache-write-cursor.png
+   :align: center
+
+   The write cursor and documents in the cache.
+
+.. note:: Cache data on disk is never updated.
+
+This is a key thing to keep in mind. What appear to be updates (such as doing a refresh on stale content and getting
+back a 304) are actually new copies of data being written at the write cursor. The originals are left as "dead" space
+which will be consumed when the write cursor arrives at that disk location. Once the stripe directory is updated (in
+memory!) the original fragment in the cache is effectively destroyed. This is the general space management techinque
+used in other cases as well. If an object needs to removed from cache, only the directory needs to be changed. No other
+work (and *particularly* no disk I/O) needs to be done.
+
+Object Structure
+================
+
+Objects are stored as two types of data, metadata and content data. Metadata is all the data about the object and the
+content and includes the HTTP headers. The content data is the content of the object, the octet stream delivered to the
+client as the object.
+
+Objects are rooted in a :cpp:class:`Doc` structure stored in the cache. :cpp:class:`Doc` serves as the header data for a
+fragment and is contained at the start of every fragment. The first fragment for an object is termed the "first ``Doc``"
+and always contains the object metadata. Any operation on the object will read this fragment first. The fragment is
+located by converting the cache key for the object to a cache ID and then doing a lookup for a directory entry with that
+key. The directory entry has the offset and approximate size of the first fragment which is then read from the disk.
+This fragment will contain the request header and response along with overall object properties (such as content
+length).
+
+.. index:: alternate
+
+|TS| supports `varying content <http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.44>`_ for objects. These
+are called *alternates*. All metadata for all alternates is stored in the first fragment including the set of alternates
+and the HTTP headers for them. This enables `alternate selection
+<http://trafficserver.apache.org/docs/trunk/sdk/http-hooks-and-transactions/http-alternate-selection.en.html>`_ to be
+done after the first ``Doc`` is read from disk. An object that has more than one alternate will have the alternate
+content stored separately from the first fragment. For objects with only one alternate the content may or may not be in
+the same (first) fragment as the metadata. Each separate alternate content is allocated a directory entry and the key
+for that entry is stored in the first fragment metadata.
+
+Prior to version 4.0.1 the header data was stored in the :cpp:class:`CacheHTTPInfoVector` class which was marshaled to a
+variable length area of the on disk image, followed by information about additional fragments if needed to store the
+object.
+
+.. figure:: images/cache-doc-layout-3-2-0.png
+   :align: center
+
+   ``Doc`` layout 3.2.0
+
+This had the problem that with only one fragment table it could not be reliable for objects with more than one alternate
+[#]_. Therefore the fragment data was moved from being a separate variable length section of the metadata to being
+directly incorporated in to the :cpp:class:`CacheHTTPInfoVector`, yielding a layout of the following form.
+
+.. figure:: images/cache-doc-layout-4-0-1.png
+   :align: center
+
+   ``Doc`` layout 4.0.1
+
+Each element in the vector contains for each alternate, in addition to the HTTP headers and the fragment table (if any),
+a cache key. This cache key identifies a directory entry that is referred to as the "earliest ``Doc``". This is the
+location where the content for the alternate begins.
+
+When the object is first cached, it will have a single alternate and that will be stored (if not too large) in first
+``Doc``. This is termed a *resident alternate* in the code. This can only happen on the initial store of the object. If
+the metadata is updated (such as a ``304`` response to an ``If-Modified-Since`` request) then unless the object is
+small, the object data will be left in the original fragment and a new fragment written as the first fragment, making
+the alternate non-resident. "Small" is defined as a length smaller than :ts:cv:`proxy.config.cache.alt_rewrite_max_size`.
+
+.. note::
+
+   The :cpp:class:`CacheHTTPInfoVector` is stored only in the first ``Doc``. Subsequent ``Doc`` instances for the
+   object, including the earliest ``Doc``, should have an ``hlen`` of zero and if not, it is ignored.
+
+Large objects are split in to multiple fragments when written to the cache. This is indicated by a total document length
+that is longer than the content in first ``Doc`` or an earliest ``Doc``. In such a case a fragment offset table is
+stored. This contains the byte offset in the object content of the first byte of content data for each fragment past the
+first (as the offset for the first is always zero). This allows range requests to be serviced much more efficiently for
+large objects, as intermediate fragments that do not contain data in the range can be skipped. The last fragment in the
+sequence is detected by the fragment size and offset reaching the end of the total size of the object, there is no
+explicit end mark. Each fragment is computationally chained from the previous in that the cache key for fragment N is
+computed by::
+
+   key_for_N_plus_one = next_key(key_for_N);
+
+where ``next_key`` is a global function that deterministically computes a new cache key from an existing cache key.
+
+Objects with multiple fragments are laid out such that the data fragments (including the earliest ``Doc``) are written
+first and the first ``Doc`` is written last. When read from disk, both the first and earliest ``Doc`` are validated
+(tested to ensure that they haven't been overwritten by the write cursor) to verify that the entire document is present
+on disk (as they bookend the other fragments - the write cursor cannot overwrite them without overwriting at leastone of
+the verified ``Doc`` instances). Note that while the fragments of a single object are ordered they are not necessarily
+contiguous as data from different objects are interleaved as the data arrives in |TS|.
+
+.. figure:: images/cache-multi-fragment.png
+   :align: center
+
+   Multi-alternate and multi-fragment object storage
+
+.. index:: pinned
+
+Documents which are "pinned" into the cache must not be overwritten so they are "evacuated" from in front of the write
+cursor. Each fragment is read and rewritten. There is a special lookup mechanism for objects that are being evacuated so
+that they can be found in memory rather than the potentially unreliable disk regions. The cache scans ahead of the write
+cursor to discover pinned objects as there is a dead zone immediately before the write cursor from which data cannot be
+evacuated. Evacuated data is read from disk and placed in the write queue and written as its turn comes up.
+
+It appears that objects can only be pinned via the :file:`cache.config` file and if the
+:ts:cv:`proxy.config.cache.permit.pinning` is set to non-zero (it is zero by default). Objects which are in use when the
+write cursor is near use the same underlying evacuation mechanism but are handled automatically and not via the explicit
+``pinned`` bit in :cpp:class:`Dir`.
+
+.. [#] It could, under certain circumstances, be accurate for none of the alternates.
+
+Additional Notes
+====================
+
+Some general observations on the data structures.
+
+Cyclone buffer
+--------------
+
+Because the cache is a cyclone cache objects are not preserved for an indefinite time. Even if the object is not stale
+it can be overwritten as the cache cycles through its volume. Marking an object as ``pinned`` preserves the object
+through the passage of the write cursor but this is done by copying the object across the gap, in effect re-storing it
+in the cache. Pinning large objects or a large number objects can lead to a excessive disk activity. The original
+purpose of pinning seems to have been for small, frequently used objects explicitly marked by the administrator.
+
+This means the purpose of expiration data on objects is simply to prevent them from being served to clients. They are
+not in the standard sense deleted or cleaned up. The space can't be immediately reclaimed in any event because writing
+only happens at the write cursor. Deleting an object consists only of removing the directory entries in the volume
+directory which suffices to (eventually) free the space and render the document inaccessible.
+
+Historically the cache is designed this way because web content was relatively small and not particularly consistent.
+The design also provides high performance and low consistency requirements. There are no fragmentation issues for the
+storage, and both cache misses and object deletions require no disk I/O. It does not deal particularly well with long
+term storage of large objects. See the :ref:`volume tagging` appendix for details on some work in this area.
+
+Disk Failure
+------------
+
+The cache is designed to be relatively resistant to disk failures. Because each storage unit in each volume is mostly independent the loss of a disk simply means that the corresponding :cpp:class:`Vol` instances (one per cache volume that uses the storage unit) becomes unusable. The primary issue is updating the volume assignment table to both preserve assignments for objects on still operational volumes while distributing the assignments from the failed disk to those operational volumes. This mostly done in::
+
+   AIO_Callback_handler::handle_disk_failure
+
+Restoring a disk to active duty is quite a bit more difficult task. Changing the volume assignment of a cache key renders any currently cached data inaccessible. This is obviouly not a problem when a disk has failed, but is a bit trickier to decide which cached objects are to be de facto evicted if a new storage unit is added to a running system. The mechanism for this, if any, is still under investigation.
+
+Implementation Details
+======================
+
+Stripe Directory
+----------------
+
+.. _directory-entry:
+
+The in memory volume directory entries are defined as described below.
+
+.. cpp:class:: Dir
+
+   Defined in |P-CacheDir.h|_.
+
+   =========== =================== ===================================================
+   Name        Type                Use
+   =========== =================== ===================================================
+   offset      unsigned int:24     Offset of first byte of metadata (volume relative)
+   big         unsigned in:2       Size multiplier
+   size        unsigned int:6      Size
+   tag         unsigned int:12     Partial key (fast collision check)
+   phase       unsigned int:1      Phase of the ``Doc`` (for dir valid check)
+   head        unsigned int:1      Flag: first fragment in an object
+   pinned      unsigned int:1      Flag: document is pinned
+   token       unsigned int:1      Flag: Unknown
+   next        unsigned int:16     Segment local index of next entry.
+   offset_high inku16              High order offset bits
+   =========== =================== ===================================================
+
+   The stripe directory is an array of ``Dir`` instances. Each entry refers to a span in the volume which contains a cached object. Because every object in the cache has at least one directory entry this data has been made as small as possible.
+
+   The offset value is the starting byte of the object in the volume. It is 40 bits long split between the *offset* (lower 24 bits) and *offset_high* (upper 16 bits) members. Note that since there is a directory for every storage unit in a cache volume, this is the offset in to the slice of a storage unit attached to that volume.
+
+.. _dir-size:
+
+   The *size* and *big* values are used to calculate the approximate size of the fragment which contains the object. This value is used as the number of bytes to read from storage at the offset value. The exact size is contained in the object metadata in :cpp:class:`Doc` which is consulted once the read has completed. For this reason the approximate size needs to be at least as large as the actual size but can be larger, at the cost of reading the extraneous bytes.
+
+   The computation of the approximate size of the fragment is defined as::
+
+      ( *size* + 1 ) * 2 ^ ( ``CACHE_BLOCK_SHIFT`` + 3 * *big* )
+
+   where ``CACHE_BLOCK_SHIFT`` is the bit width of the size of a basic cache block (9, corresponding to a sector size of 512). Therefore the value with current defines is::
+
+      ( *size* + 1 ) * 2 ^ (9 + 3 * *big*)
+
+   Because *big* is 2 bits the values for the multiplier of *size* are
+
+   .. _big-mult:
+
+   ===== ===============   ========================
+   *big* Multiplier        Maximum Size
+   ===== ===============   ========================
+     0   512 (2^9)         32768 (2^15)
+     1   4096 (2^12)       262144 (2^18)
+     2   32768 (2^15)      2097152 (2^21)
+     3   262144 (2^18)     16777216 (2^24)
+   ===== ===============   ========================
+
+   Note also that *size* is effectively offset by one, so a value of 0 indicates a single unit of the multiplier.
+
+.. _target-fragment-size:
+
+The target fragment size can set with the :file:`records.config` value
+
+   ``proxy.config.cache.target_fragment_size``
+
+This value should be chosen so that it is a multiple of a :ref:`cache entry multiplier <big-mult>`. It is not necessary
+to make it a power of 2 [#]_. Larger fragments increase I/O efficiency but lead to more wasted space. The default size
+(1M, 2^20) is a reasonable choice in most circumstances altough in very specific cases there can be benefit from tuning
+this parameter. |TS| imposes an internal maximum of a 4194232 bytes which is 4M (2^22) less the size of a struct
+:cpp:class:`Doc`. In practice then the largest reasonable target fragment size is 4M - 262144 = 3932160.
+
+When a fragment is stored to disk the size data in the cache index entry is set to the finest granularity permitted by
+the size of the fragment. To determine this consult the :ref:`cache entry multipler <big-mult>` table, find the smallest
+maximum size that is at least as large as the fragment. That will indicate the value of *big* selected and therefore the
+granularity of the approximate size. That represents the largest possible amount of wasted disk I/O when the fragment is
+read from disk.
+
+.. index:: DIR_DEPTH, index segment, index buckets
+
+The set of index entries for a volume are grouped in to *segments*. The number of segments for an index is selected so
+that there are as few segments as possible such that no segment has more than 2^16 entries. Intra-segment references can
+therefore use a 16 bit value to refer to any other entry in the segment.
+
+Index entries in a segment are grouped *buckets* each of ``DIR_DEPTH`` (currently 4) entries. These are handled in the
+standard hash table way, giving somewhat less than 2^14 buckets per segment.
+
+.. [#] The comment in :file:`records.config` is simply wrong.
+
+.. _cache-directory-probe:
+
+Directory Probing
+-----------------
+
+Directory probing is locating a specific directory entry in the stripe directory based on a cache ID. This is handled
+primarily by the function :cpp:func:`dir_probe()`. This is passed the cache ID (:arg:`key`), a stripe (:arg:`d`), and a
+last collision (:arg:`last_collision`). The last of these is an in and out parameter, updated as useful during the
+probe.
+
+Given an ID, the top half (64 bits) is used as a :ref:`segment <dir-segment>` index, taken modulo the number of segments in
+the directory. The bottom half is used as a :ref:`bucket <dir-bucket>` index, taken modulo the number of buckets per
+segment. The :arg:`last_collision` value is used to mark the last matching entry returned by :cpp:func:`dir_probe`.
+
+After computing the appropriate bucket, the entries in that bucket are searched to find a match. In this case a match is
+detected by comparison of the bottom 12 bits of the cache ID (the *cache tag*). The search starts at the base entry for
+the bucket and then proceeds via the linked list of entries from that first entry. If a tag match is found and there is
+no :arg:`collision` then that entry is returned and :arg:`last_collision` is updated to that entry. If :arg:`collision`
+is set, then if it isn't the current match the search continues down the linked list, otherwise :arg:`collision` is
+cleared and the search continues. The effect of this is that matches are skipped until the last returned match
+(:arg:`last_collision`) is found, after which the next match (if any) is returned. If the search falls off the end of
+the linked list then a miss result is returned (if no last collision), otherwise the probe is restarted after clearing
+the collision on the presumption that the entry for the collision has been removed from the bucket. This can lead to
+repeats among the returned values but guarantees that no valid entry will be skipped.
+
+Last collision can therefore be used to restart a probe at a later time. This is important because the match returned
+may not be the actual object - although the hashing of the cache ID to a bucket and the tag matching is unlikely to
+create false positives, that is possible. When a fragment is read the full cache ID is available and checked and if
+wrong, that read can be discarded and the next possible match from the directory found because the cache virtual
+connection tracks the last collision value.
+
+----------------
+Cache Operations
+----------------
+
+Cache activity starts after the HTTP request header has been parsed and remapped. Tunneled transactions do not interact with the cache because the headers are never parsed.
+
+To understand the logic we must introduce the term "cache valid" which means something that is directly related to an object that is valid to be put in the cache (e.g. a ``DELETE`` which refers to a URL that is cache valid but cannot be cached itself). This is important because |TS| computes cache validity several times during a transaction and only performs cache operations for cache valid results. The criteria used changes during the course of the transaction as well. This is done to avoid the cost of cache activity for objects that cannot be in the cache.
+
+The three basic cache operations are lookup, read, and write. We will take deleting entries as a special case of writing where only the volume directory is updated.
+
+After the client request header is parsed and is determined to be potentially cacheable, a `cache lookup`_ is done. If successful a `cache read`_ is attempted. If either the lookup or the read fails and the content is considered cacheable then a `cache write`_ is attempted.
+
+Cacheability
+============
+
+The first thing done with a request with respect to cache is to determine whether it is potentially a valid object for the cache. After initial parsing and remapping this check is done primarily to detect a negative result because if so all further cache processing is skipped -- it will not be put in to the cache nor will a cache lookup be done. There are a number of prerequisites along with configuration options to change them. Additional cacheability checks are done later in the process when more is known about the transaction (such as plugin operations and the origin server response). Those checks are described as appropriate in the sections on the relevant operations.
+
+The set of things which can affect cacheability are
+
+* Built in constraints
+* Settings in :file:`records.config`
+* Settings in :file:`cache.config`
+* Plugin operations
+
+The initial internal checks, along with their :file:`records.config` overrides[#]_, are done in::
+
+   HttpTransact::is_request_cache_lookupable
+
+The checks that are done are
+
+   Cacheable Method
+      The request must be one of ``GET``, ``HEAD``, ``POST``, ``DELETE``, ``PUT``.
+
+      See ``HttpTransact::is_method_cache_lookupable()``.
+
+   Dynamic URL
+      |TS| tries to avoid caching dynamic content because it's dynamic. A URL is considered dynamic if it
+
+      *  is not ``HTTP`` or ``HTTPS``
+      *  has query parameters
+      *  ends in ``asp``
+      *  has ``cgi`` in the path
+
+      This check can be disabled by setting a non-zero value for::
+
+         proxy.config.http.cache.cache_urls_that_look_dynamic
+
+      In addition if a TTL is set for rule that matches in :file:`cache.config` then this check is not done.
+
+   Range Request
+      Cache valid only if :ts:cv:`proxy.config.http.cache.range.lookup` in
+      :file:`records.config` is non-zero. This does not mean the range request
+	    can be cached, only that it might be satisfiable from the
+	    cache. In addition, :ts:cv:`proxy.config.http.cache.range.write`
+	    can be set to try to force a write on a range request. This
+	    probably has little value at the moment, but if for example the
+	    origin server ignores the ``Range:`` header, this option can allow
+	    for the response to be cached. It is disabled by default, for
+	    best performance.
+
+A plugin can call :c:func:`TSHttpTxnReqCacheableSet()` to force the request to be viewed as cache valid.
+
+.. [#] The code appears to check :file:`cache.config` in this logic by setting the ``does_config_permit_lookup`` in the ``cache_info.directives`` of the state machine instance but I can find no place where the value is used. The directive ``does_config_permit_storing`` is set and later checked so the directive (from the administrator point of view) is effective in preventing caching of the object.
+
+Cache Lookup
+============
+
+If the initial request is not determined to be cache invalid then a lookup is done. Cache lookup determines if an object is in the cache and if so, where it is located. In some cases the lookup proceeds to read the first ``Doc`` from disk to verify the object is still present in the cache.
+
+There are three basic steps to a cache lookup.
+
+#. The cache key is computed.
+
+   This is normally computed using the request URL but it can be overridden :ref:`by a plugin <cache-key>` . As far as I can tell the cache index string is not stored anywhere, it presumed computable from the client request header.
+
+#. The cache stripe is determined (based on the cache key).
+
+   The cache key is used as a hash key in to an array of :cpp:class:`Vol` instances. The construction and arrangement of this array is the essence of how volumes are assigned.
+
+#. The cache stripe directory :ref:`is probed <cache-directory-probe>` using the index key computed from the cache key.
+
+   Various other lookaside directories are checked as well, such as the :ref:`aggregation buffer <aggregation-buffer>`.
+
+#. If the directory entry is found the first ``Doc`` is read from disk and checked for validity.
+
+   This is done in :cpp:func:`CacheVC::openReadStartHead()` or :cpp:func:`CacheVC::openReadStartEarliest()` which are tightly coupled methods.
+
+If the lookup succeeds then a more detailed directory entry (struct :cpp:class:`OpenDir`) is created. Note that the directory probe includes a check for an already extant ``OpenDir`` which if found is returned without additional work.
+
+Cache Read
+==========
+
+Cache read starts after a successful `cache lookup`_. At this point the first ``Doc`` has been loaded in to memory and can be consulted for additional information. This will always contain the HTTP headers for all alternates of the object.
+
+.. sidebar:: Read while write
+
+   There is provision in the code to support "read while write", that is serving an object from cache in one transaction while it is being written in another. Several settings are needed for it to be used. See :ref:`reducing-origin-server-requests-avoiding-the-thundering-herd`. It must specifically enabled in :file:`records.config` and if not, a cache read will fail if the object is currently be written or updated.
+
+At this point an alternate for the object is selected. This is done by comparing the client request to the stored response headers, but it can be controlled by a plugin using ``TS_HTTP_ALT_SELECT_HOOK``.
+
+The content can now be checked to see if it is stale by calculating the "freshness" of the object. This is essential checking how old the object is by looking at the headers and possibly other metadata (note the headers can't be checked until we've selected an alternate).
+
+Most of this work is done in::
+
+   HttpTransact::what_is_document_freshness
+
+First the TTL (time to live) value which can be set in :file:`cache.config` is checked if the request matches the configuration file line. This is done based on when the object was placed in cache, not on any data in the headers.
+
+Next an internal flag ("needs-revalidate-once") is checked if the :file:`cache.config` value "revalidate-after" is not set, and if set the object is marked "stale".
+
+After these checks the object age is calculated by::
+
+   HttpTransactHeaders::calculate_document_age
+
+and then any configured fuzzing is applied. The limits to this age based on available data is calculated by::
+
+   HttpTransact::calculate_document_freshness_limit
+
+How this age is used is determined by the :file:`records.config` value::
+
+   proxy.config.http.cache.when_to_revalidate
+
+If this is zero then the built caclulations are used which compare the freshness limits with document age, modified by any of the client supplied cache control values ``max-age``, ``min-fresh``, ``max-stale`` unless explicitly overridden in :file:`cache.config`.
+
+If the object is not stale then it is served to the client. If stale the client request may be changed to an ``If Modified Since`` request to revalidate.
+
+The request is served using a standard virtual connection tunnel (``HttpTunnel``) with the :cpp:class:`CacheVC` acting
+as the producer and the client ``NetVC`` acting as the sink. If the request is a range request this can be modified with
+a transform to select the appropriate parts of the object or, if the request contains a single range, it can use the
+range acceleration.
+
+Range acceleration is done by consulting a fragment offset table attached to the earliest ``Doc`` which contains offsets
+for all fragments past the first. This allows loading the fragment containing the first requested byte immediately
+rather than performing reads on the intermediate fragments.
+
+Cache Write
+===========
+
+Writing to cache is handled by an instance of the class :cpp:class:`CacheVC`. This is a virtual connection which
+receives data and writes it to cache, acting as a sink. For a standard transaction data transfers between virtual
+connections (*VConns*) are handled by :cpp:class:`HttpTunnel`. Writing to cache is done by attaching a ``CacheVC``
+instance as a tunnel consumer. It therefore operates in parallel with the virtual connection that transfers data to the
+client. The data does not flow to the cache and then to the client, it is split and goes both directions in parallel.
+This avoids any data synchronization issues between the two.
+
+.. sidebar:: Writing to disk
+
+   The actual write to disk is handled in a separate thread dedicated to I/O operations, the AIO threads. The cache
+   logic marshals the data and then hands the operation off to the AIO thread which signals back once the operation
+   completes.
+
+While each ``CacheVC`` handles its transactions independently, they do interact at the volume level as each ``CacheVC``
+makes calls to the volume object to write its data to the volume content. The ``CacheVC`` accumulates data internally
+until either the transaction is complete or the amount of data to write exceeds the target fragment size. In the former
+case the entire object is submitted to the volume to be written. In the latter case a target fragment size amount of
+data is submitted and the ``CacheVC`` continues to operate on subsequent data. The volume in turn places these write
+requests in an holding area called the `aggregation buffer`_.
+
+For objects under the target fragment size there is no consideration of order, the object is simply written to the
+volume content. For larger objects the earliest ``Doc`` is written first and the first ``Doc`` written last. This
+provides some detection ability should the object be overwritten. Because of the nature of the write cursor no fragment
+after the first fragment (in the earliest ``Doc``) can be overwritten without also overwriting that first fragment
+(since we know at the time the object was finalized in the cache the write cursor was at the position of the first
+``Doc``).
+
+.. note:: It is the responsibility of the ``CacheVC`` to not submit writes that exceed the target fragment size.
+
+.. how does the write logic know if it's an original object write or an update to an existing object?
+
+Update
+------
+
+Cache write also covers the case where an existing object in the cache is modified. This occurs when
+
+* A conditional request is made to the origin server and a ``304 - Not Modified`` response is received.
+* An alternate of the object is retrieved from an origin server and added to the object.
+* An alternate of the object is removed (e.g., due to a ``DELETE`` request).
+
+In every case the metadata for the object must be modified. Because |TS| never updates data already in the cache this
+means the first ``Doc`` will be written to the cache again and the volume directory entry updated. Because a client
+request has already been processed the first ``Doc`` has been read from cache and is in memory. The alternate vector is
+updated as appropriate (an entry added or removed, or changed to contain the new HTTP headers), and then written to
+disk. It is possible for multiple alternates to be updated by different ``CacheVC`` instances at the same time. The only
+contention is the first ``Doc``, the rest of the data for each alternate is completely independent.
+
+.. _aggregation-buffer:
+
+Aggregation Buffer
+------------------
+
+Disk writes to cache are handled through an *aggregation buffer*. There is one for each :cpp:class:`Vol` instance. To
+minimize the number of system calls data is written to disk in units of roughly :ref:`target fragment size
+<target-fragment-size>` bytes. The algorithm used is simple - data is piled up in the aggregation buffer until no more
+will fit without going over the target fragment size, at which point the buffer is written to disk and the volume
+directory entries for objects with data in the buffer are updated with the actual disk locations for those objects
+(which are determined by the write to disk action). After the buffer is written it is cleared and process repeats. There
+is a special lookup table for the aggregation buffer so that object lookup can find cache data in that memory.
+
+Because data in the aggregation buffer is visible to other parts of the cache, particularly `cache lookup`_, there is no
+need to push a partial filled aggregation buffer to disk. In effect any such data is effectively memory cached until
+enough additional cache content arrives to fill the buffer.
+
+The target fragment size has little effect on small objects because the fragment sized is used only to parcel out disk
+write operations. For larger objects the effect very significant as it causes those objects to be broken up in to
+fragments at different locations on in the volume. Each fragment write has its own entry in the volume directory which
+are computational chained (each cache key is computed from the previous one). If possible a fragment table is
+accumulated in the earliest ``Doc`` which has the offsets of the first byte for each fragment.
+
+Evacuation Mechanics
+--------------------
+
+By default the write cursor will overwrite (de facto evict from cache) objects as it proceeds once it has gone around
+the cache stripe at least once. In some cases this is not acceptable and the object is *evacuated* by reading it from
+the cache and then writing it back to cache which moves the physical storage of the object from in front of the write
+cursor to behind the write cursor. Objects that are evacuated are handled in this way based on data in stripe data
+structures (attached to the :cpp:class:`Vol` instance).
+
+Evacuation data structures are defined by dividing up the volume content in to a disjoint and contiguous set of regions
+of ``EVACUATION_BUCKET_SIZE`` bytes. The :cpp:member:`Vol::evacuate` member is an array with an element for each
+evacuation region. Each element is a doubly linked list of :cpp:class:`EvacuationBlock` instances. Each instance
+contains a :cpp:class:`Dir` that specifies the fragment to evacuate. It is assumed that an evacuation block is placed in
+the evacuation bucket (array element) that corresponds to the evacuation region in which the fragment is located
+although no ordering per bucket is enforced in the linked list (this sorting is handled during evacuation). Objects are
+evacuated by specifying the first or earliest fragment in the evactuation block. The evactuation operation will then
+continue the evacuation for subsequent fragments in the object by adding those fragments in evacuation blocks. Note that
+the actual evacuation of those fragments is delayed until the write cursor reaches the fragments, it is not necessarily
+done at the time the first / earliest fragment is evacuated.
+
+There are two types of evacuations, reader based and forced. The ``EvacuationBlock`` has a reader count to track this.
+If the reader count is zero, then it is a forced evacuation and the the target, if it exists, will be evacuated when the
+write cursor gets close. If the reader value is non-zero then it is a count of entities that are currently expecting to
+be able to read the object. Readers increment the count when they require read access to the object, or create the
+``EvacuationBlock`` with a count of 1. When a reader is finished with the object it decrements the count and removes the
+``EvacuationBlock`` if the count goes to zero. If the ``EvacuationBlock`` already exists with a count of zero, the count
+is not modified and the number of readers is not tracked, so the evacuation is valid as long as the object exists.
+
+Evacuation is driven by cache writes, essentially in :cpp:member:`Vol::aggWrite`. This method processes the pending
+cache virtual connections that are trying to write to the stripe. Some of these may be evacuation virtual connections.
+If so then the completion callback for that virtual connection is called as the data is put in to the aggregation
+buffer.
+
+When no more cache virtual connections can be processed (due to an empty queue or the aggregation buffer filling) then
+:cpp:member:`Vol::evac_range` is called to clear the range to be overwritten plus an additional
+:const:`EVACUATION_SIZE` range. The buckets covering that range are checked. If there are any items in the buckets a
+new cache virtual connection (a "doc evacuator") is created and used to read the evacuation item closest to the write
+cursor (i.e. with the smallest offset in the stripe) instead of the aggregation write proceeding. When the read
+completes it is checked for validity and if valid, the cache virtual connection for it is placed at the front of the
+write queue for the stripe and the write aggregation resumed.
+
+Before doing a write, the method :cpp:func:`Vol::evac_range()` is called to start an evacuation. If any fragments are
+found in the buckets in the range the earliest such fragment (smallest offset, closest to the write cursor) is selected
+and read from disk and the aggregation buffer write is suspended. The read is done via a cache virtual connection which
+also effectively serves as the read buffer. Once the read is complete, that cache virtual connection instance (the "doc
+evacuator") is place at the front of the stripe write queue and written out in turn. Because the fragment data is now in
+memory it is acceptable to overwrite the disk image.
+
+Note that when normal stripe writing is resumed, this same check is done again, each time evauating (if needed) a
+fragment and queuing them for writing in turn.
+
+Updates to the directory are done when the write for the evacuated fragment completes. Multi-fragment objects are
+detected after the read completes for a fragment. If it is not the first fragment then the next fragment is marked for
+evacuation (which in turn, when it is read, will pull the subsequent fragment). The logic doesn't seem to check the
+length and presumes that the end of the alternate is when the next key is not in the directory.
+
+This interacts with the "one at a time" strategy of the aggregation write logic. If a fragment is close to the fragment being evacuated it may end up in the same evacuation bucket. Because the aggregation write checks every time for the "next" fragment to evacuate it will find that next fragment and evacuate it before it is overwritten.
+
+.. note
+
+   I do not understand the extra key list that is present in an evacuation block. It is labeled as needed for
+   "collisions" but I am unclear on what might be colliding. The bucket entries are stored and matched by stripe offset
+   but if two fragments collide on their offset, only one can be valid. Based on how :ref:`directory probing
+   <cache-directory-probe>` works and the logic of :cpp:func:`evacuate_fragments()` it appears that rather than determine which
+   entry in a directory bucket is the correct one, all of them are marked for evacuation (thereby handling
+   "collisions"). However, each one could have a distinct fragment size and that is set for all of the reads by the
+   first fragment found in the directory. The intent seems to be to read all fragments that collide at the same starting
+   offset and then figure out which one was really on the disk after the read by looking through the key list. However,
+   this seems to presume those fragments will all be the same size, which seems unreasonable. I would think it would
+   also be necessary to update the size in the :cpp:class:`Dir` instance in the evacuation block to the be largest size
+   found among the collisions.
+
+Evacuation Operation
+--------------------
+
+The primary source of fragments to be evacuated are active fragments. That is fragments which are currently open, to be read or written. This is tracked by the reader value in the evacuation blocks noted above.
+
+If object pinning is enabled then a scan is done on a regular basis as the write cursor moves to detected pinned objects and mark them for evacuation.
+
+Fragments can also be evacuated through *hit evacuation*. This is configured by :ts:cv:`proxy.config.cache.hit_evacuate_percent` and :ts:cv:`proxy.config.cache.hit_evacuate_size_limit`. When a fragment is read it is checked to see if it is close and in front of the write cursor, close being less than the specified percent of the size of the stripe. If set at the default value of 10, then if the fragment is withing 10% of the size of the stripe it is marked for evacuation. This is cleared if the write cursor passes through the fragment while it remains open (as all open objects are evacuated). If when the object is closed the fragment is still marked then it is placed in the appropriate evacuation bucket.
+
+Initialization
+==============
+
+Initialization starts with an instance of :cpp:class:`Store` reading the storage configuration file, by default
+:file:`storage.config`. For each valid element in the file an instance of :cpp:class:`Span` is created. These are of
+basically four types,
+
+* File
+* Directory
+* Disk
+* Raw device
+
+After creating all the :cpp:class:`Span` instances they are grouped by device id to internal linked lists attached to the
+:cpp:member:`Store::disk` array [#]_. Spans that refer to the same directory, disk, or raw device are coalesced in to a
+single span. Spans that refer to the same file with overlapping offsets are also coalesced [#]_. This is all done in
+:c:func:`ink_cache_init()` called during startup.
+
+.. note:: The span logic is also used by the HostDB and more than one otherwise inexplicable feature is provided by the span logic for that module.
+
+After configuration initialization the cache processor is started by calling :cpp:func:`CacheProcessor::start()`. This
+does a number of things.
+
+For each valid span, an instance of :cpp:class:`CacheDisk` is created. This class is a continuation and so can be used
+to perform potentially blocking operations on the span. The primary use of these is to be passed to the AIO threads as
+the callback when an I/O operation completes. These are then dispatched to AIO threads to perform storage unit
+initialization. After all of those have completed, the resulting storage is distributed across the volumes in
+:c:func:`cplist_reconfigure`. The :cpp:class:`CacheVol` instances are created at this time.
+
+Cache stripe assignment setup is done once all stripes have initialized (that is, the stripe header information has been
+successfully read from disk for all stripes). The assignment information is stored as an array of indices. These are
+indices in to an array of stripes. Both the assignment and the stripe arrays are stored in an instance of
+:cpp:class:`CacheHostRecord`. Assignment initialization consists of populating the assignment array which is much larger
+than the stripe array.
+
+There is an instance of :cpp:class:`CacheHostRecord` for each line in :file:`hosting.config` and one "generic" record.
+For the configured instances the set of stripes is determined from the cache volume specified in the line. If no lines are specified all stripes are placed in the generic record, otherwise only those stripes marked as default are placed in the generic record.
+
+.. note:: If hosting records are specified it is an error to not specify at least one default cache volume.
+
+The assignment table is initialized in :c:func:`build_vol_hash_table` which is called for each
+:cpp:class:`CacheHostRecord` instance. For each strip in the host record a sequence of pseudo-random numbers is
+generated, starting with the folded hash of the stripe hash identifier, which is the device path followed by the skip
+and size values for that stripe, making it unique. This also makes the sequence deterministic for any particular stripe.
+Each stripe gets one number in its sequence for every `VOL_HASH_ALLOC_SIZE` (8 MB currently) of storage. These numbers are paired with
+the stripe index, combined across all stripes, then sorted by the random values. The resulting array is sampled for
+every slot in the stripe assignment table by dividing the maximum random value by the size of the assignment table and
+using the value midway between each multiple of the result of the division. The coalesced psuedo-random sequence is
+scanned for each sample in turn and the first number not greater than the sample is found. The stripe associated with
+that value is used for that assignment table entry.
+
+While this procedure is determinstic it is sensitive to initial conditions, including the size of each stripe.
+
+.. rubric:: Footnotes
+
+.. [#] `Work is under way <https://issues.apache.org/jira/browse/TS-2020>`_ on extending this to include objects that
+   are in the ram cache.
+
+.. [#] This linked list is mostly ignored in later processing, causing all but one file or directory storage units on
+   the same device to be ignored. See `TS-1869 <https://issues.apache.org/jira/browse/TS-1869>`_.
+
+.. [#] It is unclear to me how that can happen, as the offsets are computed later and should all be zero at the time the
+   spans are coalesced, and as far as I can tell the sort / coalesce is only done during initialization.
diff --git a/doc/arch/cache/cache-data-structures.en.rst b/doc/arch/cache/cache-data-structures.en.rst
new file mode 100644
index 00000000..508c4dac
--- /dev/null
+++ b/doc/arch/cache/cache-data-structures.en.rst
@@ -0,0 +1,164 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Cache Data Structures
+******************************
+
+.. include:: common.defs
+
+.. cpp:class:: OpenDir
+
+   An open directory entry. It contains all the information of a :cpp:class:`Dir` plus additional information from the first :cpp:class:`Doc`.
+
+.. cpp:class:: CacheVC
+
+   A virtual connection class which accepts input for writing to cache.
+
+.. cpp:function:: int CacheVC::openReadStartHead(int event, Event* e)
+
+   Do the initial read for a cached object.
+
+.. cpp:function:: int CacheVC::openReadStartEarliest(int event, Event* e)
+
+   Do the initial read for an alternate of an object.
+
+.. cpp:class:: HttpTunnel
+
+   Data transfer driver. This contains a set of *producers*. Each producer is connected to one or more *consumers*. The tunnel handles events and buffers so that data moves from producers to consumers. The data, as much as possible, is kept in reference counted buffers so that copies are done only when the data is modified or for sources (which acquire data from outside |TS|) and sinks (which move data to outside |TS|).
+
+.. cpp:class:: CacheControlResult
+
+   Holds the data from a line in :file:`cache.config`.
+
+.. cpp:class:: CacheHTTPInfoVector
+
+   Defined in |P-CacheHttp.h|_. This is an array of :cpp:class:`HTTPInfo` objects and serves as the respository of information about alternates of an object. It is marshaled as part of the metadata for an object in the cache.
+
+.. cpp:class:: HTTPInfo
+
+   Defined in |HTTP.h|_.
+
+   This class is a wrapper for :cpp:class:`HTTPCacheAlt`. It provides the external API for accessing data in the wrapped class. It contains only a pointer (possibly ``NULL``) to an instance of the wrapped class.
+
+.. cpp:class:: CacheHTTPInfo
+
+   A typedef for :cpp:class:`HTTPInfo`.
+
+.. cpp:class:: HTTPCacheAlt
+
+   Defined in |HTTP.h|_.
+
+   This is the metadata for a single alternate for a cached object. In contains among other data
+
+   * The key for the earliest ``Doc`` of the alternate.
+   * The request and response headers.
+   * The fragment offset table. [#]_
+   * Timestamps for request and response from origin server.
+
+.. cpp:class:: EvacuationBlock
+
+    Record for evacuation.
+
+.. cpp:class:: Vol
+
+   This represents a storage unit inside a cache volume.
+
+   .. cpp:member:: off_t Vol::segments
+
+      The number of segments in the volume. This will be roughly the total number of entries divided by the number of entries in a segment. It will be rounded up to cover all entries.
+
+   .. cpp:member:: off_t Vol::buckets
+
+      The number of buckets in the volume. This will be roughly the number of entries in a segment divided by ``DIR_DEPTH``. For currently defined values this is around 16,384 (2^16 / 4). Buckets are used as the targets of the index hash.
+
+   .. cpp:member:: DLL\<EvacuationBlock\> Vol::evacuate
+
+      Array of of :cpp:class:`EvacuationBlock` buckets. This is sized so there is one bucket for every evacuation span.
+
+   .. cpp:member:: off_t len
+
+      Length of stripe in bytes.
+
+.. cpp:function:: int Vol::evac_range(off_t low, off_t high, int evac_phase)
+
+   Start an evacuation if there is any :cpp:class:`EvacuationBlock` in the range from *low* to *high*. Return 0 if no evacuation was started, non-zero otherwise.
+
+.. cpp:class:: CacheVol
+
+   A cache volume as described in :file:`volume.config`.
+
+.. cpp:class:: Doc
+
+   Defined in |P-CacheVol.h|_.
+
+   .. cpp:member:: uint32_t Doc::magic
+
+      Validity check value. Set to ``DOC_MAGIC`` for a valid document.
+
+   .. cpp:member:: uint32_t Doc::len
+
+      The length of this segment including the header length, fragment table, and this structure.
+
+   .. cpp:member:: uint64_t Doc::total_len
+
+      Total length of the entire document not including meta data but including headers.
+
+   .. cpp:member:: INK_MD5 Doc::first_key
+
+      First index key in the document (the index key used to locate this object in the volume index).
+
+   .. cpp:member:: INK_MD5 Doc::key
+
+      The index key for this fragment. Fragment keys are computationally chained so that the key for the next and previous fragments can be computed from this key.
+
+   .. cpp:member:: uint32_t Doc::hlen
+
+      Document header (metadata) length. This is not the length of the HTTP headers.
+
+   .. cpp:member:: uint8_t Doc::ftype
+
+      Fragment type. Currently only `CACHE_FRAG_TYPE_HTTP` is used. Other types may be used for cache extensions if those are ever used / implemented.
+
+   .. cpp:member:: uint24_t Doc::flen
+
+      Fragment table length, if any. Only the first ``Doc`` in an object should contain a fragment table.
+
+      The fragment table is a list of offsets relative to the HTTP content (not counting metadata or HTTP headers). Each offset is the byte offset of the first byte in the fragment. The first element in the table is the second fragment (what would be index 1 for an array). The offset for the first fragment is of course always zero and so not stored. The purpose of this is to enable a fast seek for range requests - given the first ``Doc`` the fragment containing the first byte in the range can be computed and loaded directly without further disk access.
+
+      Removed as of version 3.3.0.
+
+   .. cpp:member:: uint32_t Doc::sync_serial
+
+      Unknown.
+
+   .. cpp:member:: uint32_t Doc::write_serial
+
+      Unknown.
+
+   .. cpp:member:: uint32_t pinned
+
+      Flag and timer for pinned objects.
+
+   .. cpp:member:: uint32_t checksum
+
+      Unknown. (A checksum of some sort)
+
+.. cpp:class:: VolHeaderFooter
+
+.. rubric:: Footnotes
+
+.. [#] Changed in version 3.2.0. This previously resided in the first ``Doc`` but that caused different alternates to share the same fragment table.
diff --git a/doc/arch/cache/cache.en.rst b/doc/arch/cache/cache.en.rst
new file mode 100644
index 00000000..f103d9fc
--- /dev/null
+++ b/doc/arch/cache/cache.en.rst
@@ -0,0 +1,33 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Apache Traffic Server Cache
+***************************
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   cache-arch.en
+   cache-data-structures.en
+   cache-api.en
+   cache-appendix.en
+   tier-storage.en
+   ram-cache.en
+
+..   appendix
diff --git a/doc/arch/cache/common.defs b/doc/arch/cache/common.defs
new file mode 100644
index 00000000..5ac36e9a
--- /dev/null
+++ b/doc/arch/cache/common.defs
@@ -0,0 +1,48 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. Global definitions
+
+.. Files in github. Should write a custom domain so we can do :ts:git:`iocore/cache/P_CacheDir.h`
+
+.. |HTTP.h| replace:: ``HTTP.h``
+
+.. _HTTP.h: https://github.com/apache/trafficserver/blob/master/proxy/hdrs/HTTP.h
+
+.. |HttpCacheSM.h| replace:: ``HttpCacheSM.h``
+
+.. _HttpCacheSM.h: https://github.com/apache/trafficserver/blob/master/proxy/http/HttpCacheSM.h
+
+.. |HttpCacheSM.cc| replace:: ``HttpCacheSM.cc``
+
+.. _HttpCacheSM.cc: https://github.com/apache/trafficserver/blob/master/proxy/http/HttpCacheSM.cc
+
+.. |P-CacheDir.h| replace:: ``P_CacheDir.h``
+
+.. _P-CacheDir.h: https://github.com/apache/trafficserver/blob/master/iocore/cache/P_CacheDir.h
+
+.. |P-CacheHttp.h| replace:: ``P_CacheHttp.h``
+
+.. _P-CacheHttp.h: https://github.com/apache/trafficserver/blob/master/iocore/cache/P_CacheHttp.h
+
+.. |P-CacheVol.h| replace:: ``P_CacheVol.h``
+
+.. _P-CacheVol.h: https://github.com/apache/trafficserver/blob/master/iocore/cache/P_CacheVol.h
+
+.. |ATS| replace:: Apache Traffic Server
+
+.. |TS| replace:: Traffic Server
diff --git a/doc/arch/cache/images/ats-cache-volume-definition.png b/doc/arch/cache/images/ats-cache-volume-definition.png
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diff --git a/doc/arch/cache/ram-cache.en.rst b/doc/arch/cache/ram-cache.en.rst
new file mode 100644
index 00000000..b0b15e1f
--- /dev/null
+++ b/doc/arch/cache/ram-cache.en.rst
@@ -0,0 +1,88 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. include:: common.defs
+
+*********
+Ram Cache
+*********
+
+New Ram Cache Algorithm (CLFUS)
+===============================
+
+The new Ram Cache uses ideas from a number of cache replacement policies and algorithms, including LRU, LFU, CLOCK, GDFS and 2Q, called CLFUS (Clocked Least Frequently Used by Size). It avoids any patented algorithms and includes the following features:
+
+* Balances Recentness, Frequency and Size to maximize hit rate (not byte hit rate).
+* Is Scan Resistant and extracts robust hit rates even when the working set does not fit in the Ram Cache.
+* Supports compression at 3 levels fastlz, gzip(libz), and xz(liblzma).  Compression can be moved to another thread.
+* Has very low CPU overhead, only little more than a basic LRU.  Rather than using an O(lg n) heap, it uses a probabilistic replacement policy for O(1) cost with low C.
+* Has relatively low memory overhead of approximately 200 bytes per object in memory.
+
+The rational for emphasizing hit rate over byte hit rate is that the overhead of pulling more bytes from secondary storage is low compared to the cost of a request.
+
+The Ram Cache consists of an object hash fronting 2 LRU/CLOCK lists and a "Seen" hash table.  The first "Cached" list contains objects in memory while the second contains a "History" of objects which have either recently been in memory or are being considered for keeping in memory.  The "Seen" hash table is used to make the algorithm scan resistant.
+
+The list entries record the following information:
+
+* key - 16 byte unique object identifier
+* auxkeys - 8 bytes worth of version number (in our system the block in the partition).  When the version of an object changes old entries are purged from the cache.
+* hits - number of hits within this clock period
+* size - the size of the object in the cache
+* len - the actual length of the object (differs from size because of compression and padding)
+* compressed_len - the compressed length of the object
+* compressed (none, fastlz, libz, liblzma)
+* uncompressible (flag)
+* copy - whether or not this object should be copied in and copied out (e.g. HTTP HDR)
+* LRU link
+* HASH link
+* IOBufferData (smart point to the data buffer)
+
+
+The interface to the cache is Get and Put operations.  Get operations check if an object is in the cache and are called on a read attempt.  The Put operation decides whether or not to cache the provided object in memory.  It is called after a read from secondary storage.
+
+Seen Hash
+=========
+
+The Seen List becomes active after the Cached and History lists become full after a cold start.  The purpose is to make the cache scan resistant which means that the cache state must not be effected at all by a long sequence Get and Put operations on objects which are seen only once.  This is essential, without it not only would the cache be polluted, but it could lose critical information about the objects that it cares about.  It is therefore essential that the Cache and History lists are not effected by Get or Put operations on objects seen the first time.  The Seen Hash maintains a set of 16 bit hash tags, and requests which do not hit in the object cache (are in the Cache List or History List) and do not match the hash tag result in the hash tag begin updated but are otherwise ignored. The Seen Hash is sized to approximately the number of objects in the cache in order to match the number that are passed through it with the CLOCK rate of the Cached and History Lists. 
+
+Cached List
+===========
+
+The Cached list contains objects actually in memory.  The basic operation is LRU with new entries inserted into a FIFO (queue) and hits causing objects to be reinserted.  The interesting bit comes when an object is being considered for insertion.  First we check if the Object Hash to see if the object is in the Cached List or History.  Hits result in updating the "hit" field and reinsertion.  History hits result in the "hit" field being updated and a comparison to see if this object should be kept in memory.  The comparison is against the least recently used members of the Cache List, and is based on a weighted frequency::
+
+   CACHE_VALUE = hits / (size + overhead)
+
+A new object must beat enough bytes worth of currently cached objects to cover itself.  Each time an object is considered for replacement the CLOCK moves forward.  If the History object has a greater value then it is inserted into the Cached List and the replaced objects are removed from memory and their list entries are inserted into the History List.  If the History object has a lesser value it is reinserted into the History List.  Objects considered for replacement (at least one) but not replaced have their "hits" field set to zero and are reinserted into the Cached List.  This is the CLOCK operation on the Cached List.
+
+History List
+============
+
+Each CLOCK the least recently used entry in the History List is dequeued and if the "hits" field is not greater than 1 (it was hit at least once in the History or Cached List) it is deleted, otherwise the "hits" is set to zero and it is requeued on the History List. 
+
+Compression/Decompression
+=========================
+
+Compression is performed by a background operation (currently called as part of Put) which maintains a pointer into the Cached List and runs toward the head compressing entries.  Decompression occurs on demand during a Get.  In the case of objects tagged "copy" the compressed version is reinserted in the LRU since we need to make a copy anyway.  Those not tagged "copy" are inserted uncompressed in the hope that they can be reused in uncompressed form.  This is a compile time option and may be something we want to change.
+
+There are 3 algorithms and levels of compression (speed on 1 thread i7 920) :
+
+* fastlz: 173 MB/sec compression, 442 MB/sec decompression : basically free since disk or network will limit first, ~53% final size
+* libz: 55 MB/sec compression, 234 MB/sec decompression : almost free, particularly decompression, ~37% final size
+* liblzma: 3 MB/sec compression, 50 MB/sec decompression : expensive, ~27% final size
+
+These are ballpark numbers, and your millage will vary enormously.  JPEG for example will not compress with any of these. The RamCache does detect compression level and will declare something "incompressible" if it doesn't get below 90% of the original size. This value is cached so that the RamCache will not attempt to compress it again (at least as long as it is in the history).
+
diff --git a/doc/arch/cache/tier-storage.en.rst b/doc/arch/cache/tier-storage.en.rst
new file mode 100644
index 00000000..933b02bd
--- /dev/null
+++ b/doc/arch/cache/tier-storage.en.rst
@@ -0,0 +1,118 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+==============================
+Tiered Storage Design
+==============================
+
+.. include:: common.defs
+
+--------------
+Introduction
+--------------
+
+Tiered storage is an attempt to allow |TS| to take advantage of physical storage with different properties. This design
+concerns only mechanism. Policies to take advantage of these are outside of the scope of this document. Instead we will
+presume an *oracle* which implements this policy and describe the queries that must be answered by the oracle and the
+effects of the answers.
+
+Beyond avoiding question of tier policy the design is also intended to be effectively identical to current operations
+for the case where there is only one tier.
+
+The most common case for tiers is an ordered list of tiers, where higher tiers are presumed faster but more expensive
+(or more limited in capacity). This is not required. It might be that different tiers are differentiated by other
+properties (such as expected persistence). The design here is intended to handle both cases.
+
+The design presumes that if a user has multiple tiers of storage and an ordering for those tiers, they will usually want
+content stored at one tier level to also be stored at every other lower level as well, so that it does not have to be
+copied if evicted from a higher tier.
+
+-------------
+Configuration
+-------------
+
+Each storage unit in :file:`storage.config` can be marked with a *quality* value which is 32 bit number. Storage units
+that are not marked are all assigned the same value which is guaranteed to be distinct from all explicit values. The
+quality value is arbitrary from the point of view of this design, serving as a tag rather than a numeric value. The user
+(via the oracle) can impose what ever additional meaning is useful on this value (rating, bit slicing, etc.). In such
+cases all volumes should be explicitly assigned a value, as the default / unmarked value is not guaranteed to have any
+relationship to explicit values. The unmarked value is intended to be useful in situations where the user has no
+interest in tiered storage and so wants to let Traffic Server automatically handle all volumes as a single tier.
+
+-------------
+Operations
+-------------
+
+After a client request is received and processed, volume assignment is done. This would be changed to do volume assignment across all tiers simultaneously. For each tier the oracle would return one of four values along with a volume pointer.
+
+`READ`
+    The tier appears to have the object and can serve it.
+
+`WRITE`
+    The object is not in this tier and should be written to this tier if possible.
+
+`RW`
+    Treat as `READ` if possible but if the object turns out to not in the cache treat as `WRITE`.
+
+`NO_SALE`
+    Do not interact with this tier for this object.
+
+The volume returned for the tier must be a volume with the corresponding tier quality value. In effect the current style
+of volume assignment is done for each tier, by assigning one volume out of all of the volumes of the same quality and
+returning one of `RW` or `WRITE` depending on whether the initial volume directory lookup succeeds. Note that as with
+current volume assignment it is presumed this can be done from in memory structures (no disk I/O required).
+
+If the oracle returns `READ` or `RW` for more than one tier, it must also return an ordering for those tiers (it may
+return an ordering for all tiers, ones that are not readable will be ignored). For each tier, in that order, a read of
+cache storage is attempted for the object. A successful read locks that tier as the provider of cached content. If no
+tier has a successful read, or no tier is marked `READ` or `RW` then it is a cache miss. Any tier marked `RW` that fails
+the read test is demoted to `WRITE`.
+
+If the object is cached every tier that returns `WRITE` receives the object to store in the selected volume (this
+includes `RW` returns that are demoted to `WRITE`). This is a cache to cache copy, not from the origin server. In this
+case tiers marked `RW` that are not tested for read will not receive any data and will not be further involved in the
+request processing.
+
+For a cache miss, all tiers marked `WRITE` will receive data from the origin server connection (if successful).
+
+This means, among other things, that if there is a tier with the object all other tiers that are written will get a
+local copy of the object, the origin server will not be used. In terms of implementation, currently a cache write to a
+volume is done via the construction of an instance of :cpp:class:`CacheVC` which recieves the object stream. For tiered storage the
+same thing is done for each target volume.
+
+For cache volume overrides (e.g. via :file:`hosting.config`) this same process is used except with only the volumes
+stripes contained within the specified cache volume.
+
+-------
+Copying
+-------
+
+It may be necessary to provide a mechanism to copy objects between tiers outside of a client originated transaction. In
+terms of implementation this is straight forward using :cpp:class:`HttpTunnel` as if in a transaction only using a :cpp:class:`CacheVC`
+instance for both the producer and consumer. The more difficult question is what event would trigger a possible copy. A
+signal could be provided whenever a volume directory entry is deleted although it should be noted that the object in
+question may have already been evicted when this event happens.
+
+----------------
+Additional Notes
+----------------
+
+As an example use, it would be possible to have only one cache volume that uses tiered storage for a particular set of
+domains using volume tagging. :file:`hosting.config` would be used to direct those domains to the selected cache volume.
+The oracle would check the URL in parallel and return `NO_SALE` for the tiers in the target cache volume for other
+domains. For the other tier (that of the unmarked storage units) the oracle would return `RW` for the tier in all cases
+as that tier would not be queried for the target domains.
diff --git a/doc/arch/hacking/config-var-impl.en.rst b/doc/arch/hacking/config-var-impl.en.rst
new file mode 100644
index 00000000..75a80e18
--- /dev/null
+++ b/doc/arch/hacking/config-var-impl.en.rst
@@ -0,0 +1,283 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. Referenced source files
+
+.. |RecCore.cc| replace:: ``RecCore.cc``
+
+.. _RecCore.cc: https://github.com/apache/trafficserver/blob/master/lib/records/RecCore.cc
+
+.. |RecordsConfig.cc| replace:: ``RecordsConfig.cc``
+
+.. _RecordsConfig.cc: https://github.com/apache/trafficserver/blob/master/mgmt/RecordsConfig.cc
+
+.. |ts.h.in| replace:: ``ts.h.in``
+
+.. _ts.h.in: https://github.com/apache/trafficserver/blob/master/proxy/api/ts/ts.h.in
+
+.. |InkAPI.cc| replace:: ``InkAPI.cc``
+
+.. _InkAPI.cc: https://github.com/apache/trafficserver/blob/master/proxy/api/InkAPI.cc
+
+.. |InkAPITest.cc| replace:: ``InkAPITest.cc``
+
+.. _InkAPITest.cc: https://github.com/apache/trafficserver/blob/master/proxy/api/InkAPITest.cc
+
+.. Referenced enumeration values
+
+.. |RECU_DYNAMIC| replace:: ``RECU_DYNAMIC``
+
+.. _RECU_DYNAMIC: recu-dynamic_
+
+
+=====================================
+Configuration Variable Implementation
+=====================================
+
+Adding a new configuration variable in :file:`records.config` requires a number of steps which are mostly documented
+here.
+
+Before adding a new configuration variable, please discuss it on the mailing list. It will commonly be the case that a
+better name will be suggested or a more general approach to the problem which solves several different issues.
+
+=====================================
+Defining the Variable
+=====================================
+
+To begin the new configuration variables must be added to |RecordsConfig.cc|_. This contains a long array of
+configuration variable records. The fields for each record are
+
+type:``RecT``
+   Type of record. There valid values are
+
+   ``RECT_NULL``
+      Undefined record.
+
+   ``RECT_CONFIG``
+      General configuration variable.
+
+   ``RECT_PROCESS``
+      Process related statistic.
+
+   ``RECT_NODE``
+      Local statistic.
+
+   ``RECT_CLUSTER``
+      Cluster statistic.
+
+   ``RECT_LOCAL``
+      Configuration variable that is explicitly not shared across a cluster.
+
+   ``RECT_PLUGIN``
+      Plugin created statistic.
+
+   In general ``RECT_CONFIG`` should be used unless it is required that the value not be shared among members of a
+   cluster in which case ``RECT_LOCAL`` should be used. If you use ``RECT_LOCAL`` you must also start the line with ``LOCAL`` instead of ``CONFIG`` and the name should use ``.local.`` instead of ``.config.``.
+
+name:``char const*``
+   The fully qualified name of the configuration variable. Although there appears to be a hierarchial naming scheme,
+   that's just a convention, it is not actually used by the code. Nonetheless new variables should adhere to the
+   hierarchial scheme.
+
+value_type:``RecDataT``
+   The data type of the value. It should be one of ``RECD_INT``, ``RECD_STRING``, ``RECD_FLOAT`` as appropriate.
+
+default:``char const*``
+   The default value for the variable. This is always a string regardless of the *value_type*.
+
+update:``RecUpdateT``
+   Information about how the variable is updated. The valid values are
+
+   ``RECU_NULL``
+      Behavior is unknown or unspecified.
+
+.. _recu-dynamic:
+
+   ``RECU_DYNAMIC``
+      This can be updated via command line tools.
+
+   ``RECD_RESTART_TS``
+      The :ref:`traffic_server` process must be restarted for a new value to take effect.
+
+   ``RECD_RESTART_TM``
+      The :ref:`traffic_manager` process must be restarted for a new value to take effect.
+
+   ``RECD_RESTART_TC``
+      The :ref:`traffic_cop` process must be restarted for a new value to take effect.
+
+required:``RecordRequiredType``
+   Effectively a boolean that specifies if the record is required to be present, with ``RR_NULL`` meaning not required
+   and ``RR_REQUIRED`` indicating that it is required. Given that using ``RR_REQUIRED`` would be a major
+   incompatibility, ``RR_NULL`` is generally the better choice.
+
+check:``RecCheckT``
+   Additional type checking. It is unclear if this is actually implemented. The valid values are
+
+   ``RECC_NULL``
+      No additional checking.
+
+   ``RECC_STR``
+      Verify the value is a string.
+
+   ``RECC_INT``
+      Verify the value is an integer.
+
+   ``RECC_IP``
+      Verify the value is an IP address. Unknown if this checks for IPv6.
+
+pattern:``char const*``
+   Even more validity checking. This provides a regular expressions (PCRE format) for validating the value. This can be
+   ``NULL`` if there is no regular expression to use.
+
+access:``RecAccessT``
+   Access control. The valid values are
+
+   ``RECA_NULL``
+      The value is read / write.
+
+   ``RECA_READ_ONLY``
+      The value is read only.
+
+   ``RECA_NO_ACCESS``
+      No access to the value - only privileged levels parts of the ATS can access the value.
+
+=====================================
+Variable Infrastructure
+=====================================
+
+The primary effort in defining a configuration variable is handling updates, generally via :option:`traffic_line -x`. This
+is handled in a generic way, as described in the next section, or in a :ref:`more specialized way
+<http-config-var-impl>` (built on top of the generic mechanism) for HTTP related configuration variables. This is only
+needed if the variable is marked as dynamically updateable (|RECU_DYNAMIC|_) although HTTP configuration variables
+should be dynamic if possible.
+
+--------------------------
+Documentation and Defaults
+--------------------------
+
+A configuration variable should be documented in :file:`records.config`. There are many examples  in the file already that can be used for guidance. The general format is to use the tag ::
+
+   .. ts:cv::
+
+The arguments to this are the same as for the configuration file. The documentation generator will pick out key bits and use them to decorate the entry. In particular if a value is present it will be removed and used as the default value. You can attach some additional options to the variable. These are
+
+reloadable
+   The variable can be reloaded via command line on a running Traffic Server.
+
+metric
+   Specify the units for the value. This is critical for variables that use unexpected or non-obvious metrics, such as minutes instead of seconds, or disk sectors instead of bytes.
+
+deprecated
+   Mark a variable as deprecated.
+
+.. topic:: Example
+
+   ::
+
+      :reloadable:
+      :metric: minutes
+      :deprecated:
+
+If you need to refer to another configuration variable in the documentation, you can use the form ::
+
+   :ts:cv:`the.full.name.of.the.variable`
+
+This will display the name as a link to the definition.
+
+In general a new configuration variable should not be present in the default :file:`records.config`. If it is added, such defaults should be added to the file ``proxy/config/records.config.default.in``. This is used to generate the default :file:`records.config`. Just add the variable to the file in an appropriate place with a proper default as this will now override whatever default you put in the code for new installs.
+
+------------------------------
+Handling Updates
+------------------------------
+
+The simplest mechanism for handling updates is the ``REC_EstablishStaticConfigXXX`` family of functions. This mechanism
+will cause the value in the indicated instance to be updated in place when an update to :file:`records.config` occurs.
+This is done asynchronously using atomic operations. Use of these variables must keep that in mind. Adding ``volatile`` to the declaration is likely to be a good idea.
+
+If a variable requires additional handling when updated a callback can be registered which is called when the variable
+is updated. This is what the ``REC_EstablishStaticConfigXXX`` calls do internally with a callback that simply reads the
+new value and writes it to storage indicated by the call parameters. The functions used are the ``link_XXX`` static
+functions in |RecCore.cc|_.
+
+To register a configuration variable callback, call ``RecRegisterConfigUpdateCb`` with the arguments
+
+``char const*`` *name*
+   The variable name.
+
+*callback*
+   A function with the signature ``<int (char const* name, RecDataT type, RecData data, void* cookie)>``. The *name*
+   value passed is the same as the *name* passed to the registration function as is the *cookie* argument. The *type* and
+   *data* are the new value for the variable. The return value is currently ignored. For future compatibility return
+   ``REC_ERR_OKAY``.
+
+``void*`` *cookie*
+   A value passed to the *callback*. This is only for the callback, the internals simply store it and pass it on.
+
+*callback* is called under lock so it should be quick and not block. If that is necessary a continuation should be
+scheduled to handle the required action.
+
+.. note::
+   The callback occurs asynchronously. For HTTP variables as described in the next section, this is handled by the more
+   specialized HTTP update mechanisms. Otherwise it is the implementor's responsibility to avoid race conditions.
+
+.. _http-config-var-impl:
+
+------------------------
+HTTP Configuation Values
+------------------------
+
+Variables used for HTTP processing should be declared as members of the ``HTTPConfigParams`` structure (but :ref:`see
+<overridable-config-vars>`) and use the specialized HTTP update mechanisms which handle synchronization and
+initialization issues.
+
+The configuration logic maintains two copies of the ``HTTPConfigParams`` structure - the master copy and the current
+copy. The master copy is kept in the ``m_master`` member of the ``HttpConfig`` singleton. The current copy is kept in
+the ConfigProcessor. The goal is to provide a (somewhat) atomic update for configuration variables which are loaded
+individually in to the master copy as updates are received and then bulk copied to a new instance which is then swapped
+in as the current copy. The HTTP state machine interacts with this mechanism to avoid race conditions.
+
+For each variable a mapping between the variable name and the appropriate member in the master copy should be
+established between in the ``HTTPConfig::startup`` method. The ``HttpEstablishStaticConfigXXX`` functions should be used
+unless there is an strong, explicit reason to not do so.
+
+The ``HTTPConfig::reconfigure`` method handles the current copy of the HTTP configuration variables. Logic should be
+added here to copy the value from the master copy to the current copy. Generally this will be a simple assignment. If
+there are dependencies between variables those should be enforced / checked in this method.
+
+.. _overridable-config-vars:
+
+-----------------------
+Overridable Variables
+-----------------------
+
+HTTP related variables that are changeable per transaction are stored in the ``OverridableHttpConfigParams`` structure,
+an instance of which is the ``oride`` member of ``HTTPConfigParams`` and therefore the points in the previous section
+still apply. The only difference for that is the further ``.oride`` in the structure references.
+
+In addition the variable is required to be accessible from the transaction API. In addition to any custom API functions
+used to access the value, the following items are required for generic access
+
+#. Add a value to the ``TSOverridableConfigKey`` enumeration in |ts.h.in|_.
+
+#. Augment the ``TSHttpTxnConfigFind`` function to return this enumeration value when given the name of the configuration
+   variable. Be sure to count the charaters very carefully.
+
+#. Augment the ``_conf_to_memberp`` function in |InkAPI.cc|_ to return a pointer to the appropriate member of
+   ``OverridableHttpConfigParams`` and set the type if not a byte value.
+
+#. Update the testing logic in |InkAPITest.cc|_ by adding the string name of the configuration variable to the
+   ``SDK_Overridable_Configs`` array.
diff --git a/doc/arch/hacking/index.en.rst b/doc/arch/hacking/index.en.rst
new file mode 100644
index 00000000..84e997a6
--- /dev/null
+++ b/doc/arch/hacking/index.en.rst
@@ -0,0 +1,30 @@
+Hacking
+*******
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Introduction
+------------
+
+This is a documentation stub on how to hack Apache Traffic Server. Here we try to document things such as how to write
+and run unit or regression tests or how to inspect the state of the core with a debugger.
+
+.. toctree::
+   :maxdepth: 1
+
+   config-var-impl.en
diff --git a/doc/arch/index.en.rst b/doc/arch/index.en.rst
new file mode 100644
index 00000000..6cc9fac8
--- /dev/null
+++ b/doc/arch/index.en.rst
@@ -0,0 +1,37 @@
+Architecture and Hacking
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Introduction
+--------------
+
+The original architectural documents for Traffic Server were lost in the transition to an open source project. The
+documents in this section are provisional and were written based on the existing code. The purpose is to have a high
+level description of aspects of Traffic Server to better inform ongoing work.
+
+In the final section on "hacking" we try to document our approaches to understanding and modifying the source.
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+   cache/cache.en
+   proposals/hostdb.en
+   hacking/index.en
diff --git a/doc/arch/proposals/hostdb.en.rst b/doc/arch/proposals/hostdb.en.rst
new file mode 100644
index 00000000..16a6b4ea
--- /dev/null
+++ b/doc/arch/proposals/hostdb.en.rst
@@ -0,0 +1,168 @@
+Host Resolution
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Introduction
+--------------
+
+The current mechanism for resolving host names to IP addresses for Traffic Server is contained the HostDB and DNS
+libraries. These take hostnames and provide IP addresses for them.
+
+The current implementation is generally considered inadequate, both from a functionality point of view and difficulty in
+working with it in other parts of Traffic Server. As Traffic Server is used in more complex situtations this inadequacy
+presents increasing problems.
+
+Goals
+-----
+
+Updating the host name resolution (currently referred to as "HostDB") has several functions goals
+
+*  Enable additional processing layers to be easily added.
+*  Enable plugins to directly access the name resolution logic
+*  Enable plugins to provide name resolution
+*  Asynchronous (immediate resolve or callback on block)
+*  Minimize allocations -- in particular no allocations for cached resolutions
+*  Simplify interactions with the resolution, particularly with regard to nameservers, origin server failover, and
+   address family handling.
+
+It is also necessary to support a number of specific features that are either currently available or strongly desired.
+
+*  SplitDNS or its equivalent
+*  Use of a hosts file (e.g. ``/etc/hosts``)
+*  Simultaneous IPv4 and IPv6 queries
+*  IP family control
+*  Negative caching
+   *  Server connection failures
+   *  Query failures
+   *  Nameserver failures.
+*  Address validity time out control
+*  Address round robin support
+*  SRV record support (weighted records)
+*  Nameserver round robin
+*  Plugin access to nameserver data (add, remove, enumerate)
+*  Plugin provision of resolvers.
+*  Hooks for plugin detection / recovery from resolution events.
+
+One issue is persistence of the cached resolutions. This creates problems for the current implementation (because of
+size limits it imposes on the cached data) but also allows for quicker restarts in a busy environment.
+
+Basics
+------
+
+The basic design is to separate the functionality into chainable layers so that a resolver with the desired attributes
+can be assembled from those layers. The core interface is that of a lazy iterator. This object returns one of four
+results when asked for an address
+
+* An IP address
+* Done(no more addresses are available)
+* Wait(an address may be available in the future)
+* Fail (no address is available and none will be so in the future)
+
+Each layer (except the bottom) uses this API and also provides it. This enables higher level logic such as the state
+machine to simply use the resolver as a list without having to backtrack states in the case of failures, or have special
+cases for different resolution sources.
+
+To perform a resolution, a client creates a query object (potentially on the stack), initializes it with the required
+data (at least the hostname) and then starts the resolution. Methods on the query object allow its state and IP address
+data to be accessed.
+
+Required Resolvers
+------------------------
+
+Nameserver
+   A bottom level resolver that directly queries a nameserver for DNS data. This contains much of the functionality
+   currently in the ``iocore/dns`` directory.
+
+SplitDNS
+   A resolver that directs requests to one of several resolvers. To emulate current behavior these would be Nameserver
+   instances.
+
+NameserverGroup
+   A grouping mechanism for Nameserver instances that provides failover, round robin, and ordering capabilities. It may be
+   reasonable to merge this with the SplitDNS resolver.
+
+HostFile
+   A resolver that uses a local file to resolve names.
+
+AddressCache
+   A resolver that also has a cache for resolution results. It requires another resolver instance to perform the actual
+   resolution.
+
+Preloaded
+   A resolver that can contain one or more explicitly set IP addresses which are returned. When those are exhausted it
+   falls back to another resolver.
+
+Configuration
+-------------
+
+To configuration the resolution, each resolver would be assigned a tag. It is not, however, sufficient to simply provide
+the list of resolver tags because some resolvers require additional configuration. Unfortunately this will likely
+require a separate configuration file outside of :file:`records.config`, although we would be able to remove
+:file:`splitdns.config`. In this case we would need chain start / end markers around a list of resolver tags. Each tag
+would the be able to take additional resolver configuration data. For instance, for a SplitDNS resolver the nameservers.
+
+Examples
+--------
+
+Transparent operations would benefit from the *Preloaded* resolver. This would be loaded with the origin host address
+provided by the client connection. This could be done early in processing and then no more logic would be required to
+skip DNS processing as it would happen without additional action by the state machine. It would handle the problem of de
+facto denial of service if an origin server becomes unavailable in that configuration, as *Preloaded* would switch to
+alternate addresses automatically.
+
+Adding host file access would be easier as well, as it could be done in a much more modular fashion and then added to
+the stack at configuration time. Whether such addresses were cached would be controlled by chain arrangement rather yet
+more configuration knobs.
+
+The default configuration would be *Preloaded* : *AddressCache* : *Nameserver*.
+
+In all cases the state machine makes requests against the request object to get IP addresses as needed.
+
+Issues
+------
+
+Request object allocation
+=========================
+
+The biggest hurdle is being able to unwind a resolver chain when a block is encountered. There are some ways to deal with this.
+
+1) Set a maximum resolver chain length and declare the request instance so that there is storage for state for that many
+resolvers. If needed and additional value of maximum storage per chain could be set as well. The expected number of
+elements in a chain is expected to be limited, 10 would likely be a reaosnable limit. If settable at source
+configuration time this should be sufficient.
+
+2) Embed class allocators in resolver chains and mark the top / outermost / first resolver. The maximum state size for a
+resolution can be calculated when the chain is created and then the top level resolver can use an allocation pool to
+efficiently allocate request objects. This has an advantage that with a wrapper class the request object can be passed
+along cheaply. Whether that's an advantage in practice is unclear.
+
+Plugin resolvers
+================
+
+If plugins can provide resolvers, how can these can integrated in to existing resolver chains for use by the HTTP SM for
+instance?
+
+Feedback
+========
+
+It should be possible for a client to provide feedback about addresses (e.g., the origin server at this address is not
+available). Not all resolvers will handle feedback but some will and that must be possible.
+
+Related to this is that caching resolvers (such as *AddressCache*) must be able to iterator over all resolved addresses
+even if their client does not ask for them. In effect they must background fill the address data.
diff --git a/doc/checkvers.py b/doc/checkvers.py
new file mode 100644
index 00000000..cda51399
--- /dev/null
+++ b/doc/checkvers.py
@@ -0,0 +1,41 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import sys, os
+
+if __name__ == '__main__':
+  # Use optparse instead of argparse because this needs to work on old Python versions.
+  import optparse
+
+  parser = optparse.OptionParser(description='Traffic Server Sphinx docs configuration')
+  parser.add_option('--check-version', action='store_true', dest='checkvers')
+
+  (options, args) = parser.parse_args()
+
+  # Check whether we have a recent version of sphinx. EPEL and CentOS are completely crazy and I don't understand their
+  # packaging at all. The test below works on Ubuntu and places where sphinx is installed sanely AFAICT.
+  if options.checkvers:
+    print 'checking for sphinx version >= 1.1... ',
+    try:
+      import sphinx
+      version = sphinx.__version__
+      (major, minor, micro) = version.split('.')
+      if (int(major) > 1) or (int(major) == 1 and int(minor) >= 1):
+        print 'found ' + sphinx.__version__
+      sys.exit(0)
+    except Exception as e:
+      print e
+      sys.exit(1)
diff --git a/doc/conf.py b/doc/conf.py
new file mode 100644
index 00000000..b4f59ae5
--- /dev/null
+++ b/doc/conf.py
@@ -0,0 +1,381 @@
+# -*- coding: utf-8 -*-
+#
+# Apache Traffic Server documentation build configuration file, created by
+# sphinx-quickstart on Mon Mar  4 06:23:15 2013.
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file is execfile()d with the current directory set to its containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import sys, os
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#sys.path.insert(0, os.path.abspath('.'))
+sys.path.insert(0, os.path.abspath('ext'))
+sys.path.insert(0, os.path.abspath('.'))
+
+from manpages import man_pages
+
+# -- General configuration -----------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be extensions
+# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = [
+  'sphinx.ext.graphviz',
+  'sphinx.ext.intersphinx',
+  'sphinx.ext.autodoc',
+  'sphinx.ext.todo',
+  'sphinx.ext.coverage',
+  'sphinx.ext.pngmath',
+  'sphinx.ext.viewcode',
+  'traffic-server',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The encoding of source files.
+#source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'Apache Traffic Server'
+copyright = u'2014, dev@trafficserver.apache.org'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# NOTE: The build system automatically sets the version correctly, but external
+# sphinx builders (like readthedocs.org) do not, so we still have to manually
+# update a reasonable version number here.
+#
+# The short X.Y version.
+version = '5.0'
+# The full version, including alpha/beta/rc tags.
+release = '5.0.x'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#language = None
+locale_dirs = ['locale/']
+gettext_compact = False
+
+## HACK for Read-the-Docs
+##  Generate .mo files just in time
+if os.environ.get('READTHEDOCS') == 'True':
+  import polib
+  print "Generating .mo files",
+  for locale_dir in locale_dirs:
+    for path, dummy, filenames in os.walk(locale_dir):
+      for filename in filenames:
+        po_file = os.path.join(path, filename)
+        base, ext = os.path.splitext(po_file)
+        if ext == ".po":
+          mo_file = base + ".mo"
+          po = polib.pofile(po_file)
+          po.save_as_mofile(fpath=mo_file)
+  print "done"
+## End of HACK
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#today = ''
+# Else, today_fmt is used as the format for a strftime call.
+#today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = []
+
+# The reST default role (used for this markup: `text`) to use for all documents.
+#default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+#modindex_common_prefix = []
+
+nitpicky=1
+
+# -- Options for HTML output ---------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#html_theme = 'agogo'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+#html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+#html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+#html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+html_logo = 'static/images/trans_logo_tm_380x69.png'
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+html_favicon = 'static/images/favicon.ico'
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['static']
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+#html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+#html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#html_additional_pages = {}
+
+# If false, no module index is generated.
+#html_domain_indices = True
+
+# If false, no index is generated.
+#html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+#html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+#html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+#html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+#html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+#html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+#html_file_suffix = None
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'ApacheTrafficServerdoc'
+
+# -- Options for LaTeX output --------------------------------------------------
+
+latex_elements = {
+# The paper size ('letterpaper' or 'a4paper').
+#'papersize': 'letterpaper',
+
+# The font size ('10pt', '11pt' or '12pt').
+#'pointsize': '10pt',
+
+# Additional stuff for the LaTeX preamble.
+#'preamble': '',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title, author, documentclass [howto/manual]).
+latex_documents = [
+  ('index', 'ApacheTrafficServer.tex', u'Apache Traffic Server Documentation',
+   u'dev@trafficserver.apache.org', 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+#latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+#latex_use_parts = False
+
+# If true, show page references after internal links.
+#latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+#latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+#latex_appendices = []
+
+# If false, no module index is generated.
+#latex_domain_indices = True
+
+# -- Options for manual page output --------------------------------------------
+
+# The global "man_pages" is imported from ts/manpages.py
+
+# If true, show URL addresses after external links.
+#man_show_urls = False
+
+# Get the manual page description from the reStructuredText document.
+# This keeps the list of manual pages consistent with the source
+# documents and includes the same brief description in both the HTML
+# and manual page outputs.
+
+from docutils import nodes
+from docutils.transforms import frontmatter
+from sphinx.writers import manpage
+
+# Override ManualPageWriter and ManualPageTranslator in the only way
+# that Sphinx supports
+
+BaseWriter = manpage.ManualPageWriter
+class ManualPageWriter(BaseWriter):
+  def translate(self):
+    transform = frontmatter.DocTitle(self.document)
+
+    section, index = transform.candidate_index(self.document)
+    if index:
+
+      # A sentence after the title is the manual page description
+      if len(section) > 1 and isinstance(section[1], nodes.paragraph):
+
+        description = section.pop(1).astext()
+        description = description[:1].lower() + description[1:]
+        description = description.rstrip('.')
+
+        self.document.settings.subtitle = description
+
+      # Instead of section_level = -1, use the standard Docutils
+      # DocTitle transform to hide the top level title
+      transform.promote_title(self.document)
+
+    # The title is the manual page name
+    transform.set_metadata()
+
+    BaseWriter.translate(self)
+
+manpage.ManualPageWriter = ManualPageWriter
+
+BaseTranslator = manpage.ManualPageTranslator
+class ManualPageTranslator(BaseTranslator):
+  def __init__(self, builder, *args, **kwds):
+    BaseTranslator.__init__(self, builder, *args, **kwds)
+
+    # Instead of section_level = -1, use the standard Docutils
+    # DocTitle transform to hide the top level title
+    self.section_level = 0
+
+manpage.ManualPageTranslator = ManualPageTranslator
+
+# -- Options for Texinfo output ------------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+  ('index', 'ApacheTrafficServer', u'Apache Traffic Server Documentation',
+   u'dev@trafficserver.apache.org', 'ApacheTrafficServer', 'One line description of project.',
+   'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+#texinfo_appendices = []
+
+# If false, no module index is generated.
+#texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#texinfo_show_urls = 'footnote'
+
+# -- Options for Epub output ---------------------------------------------------
+
+# Bibliographic Dublin Core info.
+epub_title = u'Apache Traffic Server'
+epub_author = u'dev@trafficserver.apache.org'
+epub_publisher = u'dev@trafficserver.apache.org'
+epub_copyright = u'2013, dev@trafficserver.apache.org'
+
+# The language of the text. It defaults to the language option
+# or en if the language is not set.
+#epub_language = ''
+
+# The scheme of the identifier. Typical schemes are ISBN or URL.
+#epub_scheme = ''
+
+# The unique identifier of the text. This can be a ISBN number
+# or the project homepage.
+#epub_identifier = ''
+
+# A unique identification for the text.
+#epub_uid = ''
+
+# A tuple containing the cover image and cover page html template filenames.
+#epub_cover = ()
+
+# HTML files that should be inserted before the pages created by sphinx.
+# The format is a list of tuples containing the path and title.
+#epub_pre_files = []
+
+# HTML files shat should be inserted after the pages created by sphinx.
+# The format is a list of tuples containing the path and title.
+#epub_post_files = []
+
+# A list of files that should not be packed into the epub file.
+#epub_exclude_files = []
+
+# The depth of the table of contents in toc.ncx.
+#epub_tocdepth = 3
+
+# Allow duplicate toc entries.
+#epub_tocdup = True
+mathjax_path = 'https://docs.trafficserver.apache.org/__RTD/MathJax.js'
diff --git a/doc/doap.rdf b/doc/doap.rdf
new file mode 100644
index 00000000..b3cdef6c
--- /dev/null
+++ b/doc/doap.rdf
@@ -0,0 +1,64 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl"?>
+<rdf:RDF xml:lang="en"
+         xmlns="http://usefulinc.com/ns/doap#" 
+         xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" 
+         xmlns:asfext="http://projects.apache.org/ns/asfext#"
+         xmlns:foaf="http://xmlns.com/foaf/0.1/">
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+   
+         http://www.apache.org/licenses/LICENSE-2.0
+   
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+  <Project rdf:about="http://trafficserver.apache.org">
+    <created>2011-04-08</created>
+    <license rdf:resource="http://usefulinc.com/doap/licenses/asl20" />
+    <name>Apache Traffic Server</name>
+    <homepage rdf:resource="http://trafficserver.apache.org" />
+    <asfext:pmc rdf:resource="http://trafficserver.apache.org" />
+    <shortdesc>Apache Traffic Server is an HTTP proxy cache.</shortdesc>
+    <description>Apache Traffic Server is fast, scalable and extensible HTTP/1.1 compliant caching proxy server. ATS can be used as a reverse, forward or even transparent HTTP proxy.
+    </description>
+    <bug-database rdf:resource="https://issues.apache.org/jira/browse/TS" />
+    <mailing-list rdf:resource="http://trafficserver.apache.org/" />
+    <download-page rdf:resource="http://trafficserver.apache.org/downloads.html" />
+    <programming-language>C</programming-language>
+    <category rdf:resource="http://projects.apache.org/category/http" />
+    <release>
+      <Version>
+        <name>trafficserver</name>
+        <created>2012-03-21</created>
+        <revision>3.0.4</revision>
+      </Version>
+    </release>
+    <repository>
+      <SVNRepository>
+        <location rdf:resource="https://git-wip-us.apache.org/repos/asf/trafficserver.git"/>
+        <browse rdf:resource="https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;a=summary"/>
+      </SVNRepository>
+    </repository>
+    <maintainer>
+      <foaf:Person>
+        <foaf:name>Leif Hedstrom</foaf:name>
+          <foaf:mbox rdf:resource="mailto:zwoop@apache.org"/>
+      </foaf:Person>
+    </maintainer>
+    <asfext:implements><asfext:Standard>
+      <asfext:title>HTTP/1.1</asfext:title>
+      <asfext:body>IETF</asfext:body>
+      <asfext:id>2616</asfext:id>
+      <asfext:url rdf:resource="http://www.ietf.org/rfc/rfc2616.txt"/>
+    </asfext:Standard></asfext:implements>
+  </Project>
+</rdf:RDF>
diff --git a/doc/dot/ResponseDiag.dot b/doc/dot/ResponseDiag.dot
new file mode 100644
index 00000000..9fed3e03
--- /dev/null
+++ b/doc/dot/ResponseDiag.dot
@@ -0,0 +1,70 @@
+/* response processing diagram HttpSM */
+/*    */
+
+digraph g {
+center=1;
+size = "7.5,10";
+fontsize="20";
+label = "Inktomi CONFIDENTIAL";
+orientation = "portrait";
+
+"READ_RESP_HDR" [ label = "Read Response Header" ];
+"CALL_HANDLE_RESP" [ label = "Call Handle Response" ];
+
+/* Proxy Internal Nodes */
+"PROXY_INTERNAL" [ label = "PROXY_INTERNAL*" ];
+"PI_HANDLE_CACHE_WORK" [ label = "handle cache work" ];
+"PI_RESP_HDR_API" [label = "call Send Response Hdr Hook" ];
+"PI_INTERNAL_TRANSFER" [ label = "Internal Transfer" ];
+
+/* Server Read Nodes */
+"SERVER_READ" [ label = "SERVER_READ*" ];
+"SER_HANDLE_CACHE_WORK" [ label = "handle cache work" ];
+"SER_TRANSFORM_Q" [ label = "transform?", shape = "diamond" ];
+"SER_NO_T_RESP_HDR_API" [label = "call Send Response Hdr Hook" ];
+"SER_NO_T_SERVER_TRANSFER" [ label = "Server Transfer" ];
+
+/* Transform Nodes */
+"INIT_XFER_TO_TRANS" [label = "Initiate Transfer to Transform" ];
+"WAIT_FOR_READ_READY" [label = "Wait for Transform Read Ready" ];
+"TRANFORM_RESP_HDR_API" [label = "call Send Response Hdr Hook" ];
+"TRANSFORM_TRANSFER" [ label = "Transform Transfer" ];
+
+/* Cache Read Nodes */
+"CACHE_READ" [ label = "CACHE_READ*" ];
+"CA_HANDLE_CACHE_WORK" [ label = "handle cache work" ];
+"CA_TRANSFORM_Q" [ label = "transform?", shape = "diamond" ];
+"CA_NO_T_RESP_HDR_API" [label = "call Send Response Hdr Hook" ];
+"CA_NO_T_SERVER_TRANSFER" [ label = "Cache Transfer" ];
+
+/* Common path */
+"READ_RESP_HDR" -> "CALL_HANDLE_RESP";
+"CALL_HANDLE_RESP" -> "SERVER_READ";
+"CALL_HANDLE_RESP" -> "CACHE_READ";
+"CALL_HANDLE_RESP" -> "PROXY_INTERNAL";
+
+/* Proxy Internal Path */
+"PROXY_INTERNAL" -> "PI_HANDLE_CACHE_WORK";
+"PI_HANDLE_CACHE_WORK" -> "PI_RESP_HDR_API";
+"PI_RESP_HDR_API" -> "PI_INTERNAL_TRANSFER";
+
+/* Server Read Path */
+"SERVER_READ" -> "SER_HANDLE_CACHE_WORK";
+"SER_HANDLE_CACHE_WORK" -> "SER_TRANSFORM_Q";
+"SER_TRANSFORM_Q" -> "SER_NO_T_RESP_HDR_API" [ label = "no" ];
+"SER_NO_T_RESP_HDR_API" -> "SER_NO_T_SERVER_TRANSFER";
+
+/* Cache Read Path" */
+"CACHE_READ" -> "CA_HANDLE_CACHE_WORK";
+"CA_HANDLE_CACHE_WORK" -> "CA_TRANSFORM_Q";
+"CA_TRANSFORM_Q" -> "CA_NO_T_RESP_HDR_API" [ label = "no" ];
+"CA_NO_T_RESP_HDR_API" -> "CA_NO_T_SERVER_TRANSFER";
+
+
+/* Transform Path */
+"SER_TRANSFORM_Q" -> "INIT_XFER_TO_TRANS" [ label = "yes" ];
+"CA_TRANSFORM_Q" -> "INIT_XFER_TO_TRANS" [ label = "yes" ];
+"INIT_XFER_TO_TRANS" -> "WAIT_FOR_READ_READY";
+"WAIT_FOR_READ_READY" -> "TRANFORM_RESP_HDR_API";
+"TRANFORM_RESP_HDR_API" -> "TRANSFORM_TRANSFER";
+}
\ No newline at end of file
diff --git a/doc/dot/SimpleStateDiag.dot b/doc/dot/SimpleStateDiag.dot
new file mode 100644
index 00000000..0a49b691
--- /dev/null
+++ b/doc/dot/SimpleStateDiag.dot
@@ -0,0 +1,65 @@
+/* A simplified state diagram for HttpSM */
+/*   */
+
+digraph g {
+center=1;
+size = "7.5,10";
+fontsize="20";
+label = "Inktomi CONFIDENTIAL";
+orientation = "portrait";
+
+"ACCEPT" [ label = "accept" ];
+"RD_REQ_HDRS" [ label = "Read Req Headers" ];
+"DNS" [ label = "DNS" ];
+"C_LOOKUP" [ label = "Cache Lookup" ];
+"CACHE_LOCK" [ label = "Lock URL in Cache" ];
+"PICK_ADDR" [ label = "Pick Address" ];
+"CACHE_MATCH" [ label = "Cache Match" ];
+"CACHE_FRESH" [ label = "Cache Fresh" ];
+"SND_REQ_HDRS" [ label = "Send Req Headers" ];
+"SETUP_C_READ" [ label = "Setup Cache Read" ];
+"SND_C_HDRS" [ label = "Send Cached Headers" ];
+"CONNECT" [ label = "Try Connect" ];
+"SND_REQ_HDRS" [ label = "Send Req Headers" ];
+"RD_REP_HDRS" [ label = "Read Reply Headers" ];
+"VALID" [ label = "Check Valid" ];
+"SETUP_S_READ" [ label = "Setup Server Read" ];
+"SETUP_CACHE_WRITE" [ label = "Setup Cache Write" ];
+"SETUP_TRANS" [ label = "Setup Transform" ];
+"SETUP_REQ_TRANS" [ label = "Setup Request Transform" ];
+"SETUP_BODY_READ" [ label = "Setup POST/PUT Read" ];
+"TUNNEL" [ label = "Tunnel Response" ];
+"TUNNEL_REQ" [ label = "Tunnel Request Body" ];
+
+
+"ACCEPT" -> "RD_REQ_HDRS";
+"RD_REQ_HDRS" -> "DNS";
+"DNS" -> "C_LOOKUP";
+"C_LOOKUP" -> "CACHE_MATCH" [ label = "hit" ];
+"C_LOOKUP" -> "CACHE_LOCK" [ label = "miss" ];
+"CACHE_LOCK" -> "PICK_ADDR";
+"CACHE_MATCH" -> "CACHE_LOCK" [ label = "no match" ];
+"CACHE_MATCH" -> "CACHE_FRESH" [ label ="match" ];
+"CACHE_FRESH" -> "SND_C_HDRS" [ label ="fresh" ];
+"CACHE_FRESH" -> "CACHE_LOCK" [ label ="stale" ];
+"SND_C_HDRS" -> "SETUP_C_READ";
+"SETUP_C_READ" -> "SETUP_TRANS";
+"PICK_ADDR" -> "CONNECT";
+"CONNECT" -> "PICK_ADDR" [ label = "fail" ];
+"CONNECT" -> "SND_REQ_HDRS" [ label = "success" ];
+"SND_REQ_HDRS" -> "SETUP_BODY_READ" [label = "POST/PUT" ];
+"SETUP_BODY_READ" -> "SETUP_REQ_TRANS";
+"SETUP_REQ_TRANS" -> "TUNNEL_REQ";
+"TUNNEL_REQ" -> "RD_REP_HDRS";
+"SND_REQ_HDRS" -> "RD_REP_HDRS" [label = "GET" ];
+"RD_REP_HDRS" -> "VALID";
+"VALID" -> "PICK_ADDR" [ label = "no" ];
+"VALID" -> "SETUP_S_READ" [ label = "yes" ];
+"SETUP_S_READ" -> "SETUP_TRANS" [ label = "Uncachable" ];
+"SETUP_S_READ" -> "SETUP_CACHE_WRITE" [ label = "Cachable" ];
+"SETUP_CACHE_WRITE" -> "SETUP_TRANS";
+"SETUP_TRANS" -> "TUNNEL";
+"TUNNEL" -> "ACCEPT";
+
+}
+
diff --git a/doc/dot/SimpleStateDiagAPI.dot b/doc/dot/SimpleStateDiagAPI.dot
new file mode 100644
index 00000000..2a2f1d0d
--- /dev/null
+++ b/doc/dot/SimpleStateDiagAPI.dot
@@ -0,0 +1,86 @@
+/* A simplified state diagram for HttpSM with API callout points */
+/*   */
+
+
+digraph g {
+center=1;
+size = "7.5,10";
+fontsize="20";
+label = "Inktomi CONFIDENTIAL";
+orientation = "portrait";
+
+"ACCEPT" [ label = "Accept" ];
+"RD_REQ_HDRS" [ label = "Read Req Headers" ];
+"DNS" [ label = "DNS" ];
+"C_LOOKUP" [ label = "Cache Lookup" ];
+"CACHE_LOCK" [ label = "Lock URL in Cache" ];
+"PICK_ADDR" [ label = "Pick Address" ];
+"CACHE_MATCH" [ label = "Cache Match" ];
+"CACHE_FRESH" [ label = "Cache Fresh" ];
+"SND_REQ_HDRS" [ label = "Send Req Headers" ];
+"SETUP_C_READ" [ label = "Setup Cache Read" ];
+"SND_C_HDRS" [ label = "Send Cached Headers" ];
+"CONNECT" [ label = "Try Connect" ];
+"SND_REQ_HDRS" [ label = "Send Req Headers" ];
+"RD_REP_HDRS" [ label = "Read Reply Headers" ];
+"VALID" [ label = "Check Valid" ];
+"SETUP_S_READ" [ label = "Setup Server Read" ];
+"SETUP_CACHE_WRITE" [ label = "Setup Cache Write" ];
+"SETUP_TRANS" [ label = "Setup Transform" ];
+"SETUP_REQ_TRANS" [ label = "Setup Request Transform" ];
+"SETUP_BODY_READ" [ label = "Setup POST/PUT Read" ];
+"TUNNEL" [ label = "Tunnel Response" ];
+"TUNNEL_REQ" [ label = "Tunnel Request Body" ];
+"SND_REP_HDRS" [ label = "Send Reply Headers" ];
+
+"API_START" [ label = "API - Start" shape=box ];
+"API_RD_REQ_HDRS" [ label = "API - Read Req Headers" shape=box ];
+"API_DNS" [ label = "API - DNS" shape=box ];
+"API_CACHE_MATCH" [ label = "API - Cache Match" shape=box ];
+"API_CACHE_READ_HDR" [ label = "API - Cache Read Header" shape=box ];
+"API_SND_REQ_HDRS" [ label = "API - Send Req Headers" shape=box ];
+"API_RD_REP_HDRS" [ label = "API - Read Reply Headers" shape=box ];
+"API_SND_REP_HDRS" [ label = "API - Send Reply Headers" shape=box ];
+"API_SHUTDOWN" [ label = "API - Shutdown" shape=box ];
+
+"ACCEPT" -> "API_START";
+"API_START" -> "RD_REQ_HDRS";
+"RD_REQ_HDRS" -> "API_RD_REQ_HDRS";
+"API_RD_REQ_HDRS" -> "DNS";
+"DNS" -> "API_DNS";
+"API_DNS" -> "C_LOOKUP";
+"C_LOOKUP" -> "API_CACHE_MATCH" [ label = "hit" ];
+"C_LOOKUP" -> "CACHE_LOCK" [ label = "miss" ];
+"CACHE_LOCK" -> "PICK_ADDR";
+"API_CACHE_MATCH" -> "CACHE_MATCH";
+"CACHE_MATCH" -> "CACHE_LOCK" [ label = "no match" ];
+"CACHE_MATCH" -> "API_CACHE_READ_HDR" [ label ="match" ];
+"API_CACHE_READ_HDR" -> "CACHE_FRESH";
+"CACHE_FRESH" -> "SND_C_HDRS" [ label ="fresh" ];
+"CACHE_FRESH" -> "CACHE_LOCK" [ label ="stale" ];
+"SND_C_HDRS" -> "SETUP_C_READ";
+"SETUP_C_READ" -> "SETUP_TRANS";
+"PICK_ADDR" -> "CONNECT";
+"CONNECT" -> "PICK_ADDR" [ label = "fail" ];
+"CONNECT" -> "API_SND_REQ_HDRS" [ label = "success" ];
+"API_SND_REQ_HDRS" -> "SND_REQ_HDRS";
+"SND_REQ_HDRS" -> "SETUP_BODY_READ" [label = "POST/PUT" ];
+"SETUP_BODY_READ" -> "SETUP_REQ_TRANS";
+"SETUP_REQ_TRANS" -> "TUNNEL_REQ";
+"TUNNEL_REQ" -> "RD_REP_HDRS";
+"SND_REQ_HDRS" -> "RD_REP_HDRS" [label = "GET" ];
+"RD_REP_HDRS" -> "API_RD_REP_HDRS"
+"API_RD_REP_HDRS" -> "VALID";
+"VALID" -> "PICK_ADDR" [ label = "no" ];
+"VALID" -> "SETUP_S_READ" [ label = "yes" ];
+"SETUP_S_READ" -> "SETUP_TRANS" [ label = "Uncachable" ];
+"SETUP_S_READ" -> "SETUP_CACHE_WRITE" [ label = "Cachable" ];
+"SETUP_CACHE_WRITE" -> "SETUP_TRANS";
+"SETUP_TRANS" -> "API_SND_REP_HDRS";
+"API_SND_REP_HDRS" -> "SND_REP_HDRS";
+"SND_REP_HDRS" -> "TUNNEL";
+"TUNNEL" -> "API_SHUTDOWN"
+"API_SHUTDOWN" -> "ACCEPT";
+
+}
+
diff --git a/doc/ext/traffic-server.py b/doc/ext/traffic-server.py
new file mode 100644
index 00000000..bae9c6bb
--- /dev/null
+++ b/doc/ext/traffic-server.py
@@ -0,0 +1,238 @@
+# -*- coding: utf-8 -*-
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+    TS Sphinx Directives
+    ~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    Sphinx Docs directives for Apache Traffic Server
+
+    :copyright: Copyright 2013 by the Apache Software Foundation
+    :license: Apache
+"""
+
+from docutils import nodes
+from docutils.parsers import rst
+from sphinx.domains import Domain, ObjType, std
+from sphinx.roles import XRefRole
+from sphinx.locale import l_, _
+import sphinx
+
+class TSConfVar(std.Target):
+    """
+    Description of a traffic server configuration variable.
+
+    Argument is the variable as defined in records.config.
+
+    Descriptive text should follow, indented.
+
+    Then the bulk description (if any) undented. This should be considered equivalent to the Doxygen
+    short and long description.
+    """
+
+    option_spec = {
+        'class' : rst.directives.class_option,
+        'reloadable' : rst.directives.flag,
+        'deprecated' : rst.directives.flag,
+        'metric' : rst.directives.unchanged,
+    }
+    required_arguments = 3
+    optional_arguments = 1 # default is optional, special case if omitted
+    final_argument_whitespace = True
+    has_content = True
+
+    def make_field(self, tag, value):
+        field = nodes.field();
+        field.append(nodes.field_name(text=tag))
+        body = nodes.field_body()
+        if (isinstance(value, basestring)):
+            body.append(sphinx.addnodes.compact_paragraph(text=value))
+        else:
+            body.append(value)
+        field.append(body)
+        return field
+
+    # External entry point
+    def run(self):
+        env = self.state.document.settings.env
+        cv_default = None
+        cv_scope, cv_name, cv_type = self.arguments[0:3]
+        if (len(self.arguments) > 3):
+            cv_default = self.arguments[3]
+
+        # First, make a generic desc() node to be the parent.
+        node = sphinx.addnodes.desc()
+        node.document = self.state.document
+        node['objtype'] = 'cv'
+
+        # Next, make a signature node. This creates a permalink and a
+        # highlighted background when the link is selected.
+        title = sphinx.addnodes.desc_signature(cv_name, '')
+        title['ids'].append(nodes.make_id(cv_name))
+        title['names'].append(cv_name)
+        title['first'] = False
+        title['objtype'] = 'cv'
+        self.add_name(title)
+        title.set_class('ts-cv-title')
+
+        # Finally, add a desc_name() node to display the name of the
+        # configuration variable.
+        title += sphinx.addnodes.desc_name(cv_name, cv_name)
+
+        node.append(title)
+
+        if ('class' in self.options):
+            title.set_class(self.options.get('class'))
+        # This has to be a distinct node before the title. if nested then
+        # the browser will scroll forward to just past the title.
+        anchor = nodes.target('', '', names=[cv_name])
+        # Second (optional) arg is 'msgNode' - no idea what I should pass for that
+        # or if it even matters, although I now think it should not be used.
+        self.state.document.note_explicit_target(title)
+        env.domaindata['ts']['cv'][cv_name] = env.docname
+
+        fl = nodes.field_list()
+        fl.append(self.make_field('Scope', cv_scope))
+        fl.append(self.make_field('Type', cv_type))
+        if (cv_default):
+            fl.append(self.make_field('Default', cv_default))
+        else:
+            fl.append(self.make_field('Default', sphinx.addnodes.literal_emphasis(text='*NONE*')))
+        if ('metric' in self.options):
+            fl.append(self.make_field('Metric', self.options['metric']))
+        if ('reloadable' in self.options):
+            fl.append(self.make_field('Reloadable', 'Yes'))
+        if ('deprecated' in self.options):
+            fl.append(self.make_field('Deprecated', 'Yes'))
+
+        # Get any contained content
+        nn = nodes.compound();
+        self.state.nested_parse(self.content, self.content_offset, nn)
+
+        # Create an index node so that Sphinx adds this config variable to the
+        # index. nodes.make_id() specifies the link anchor name that is
+        # implicitly generated by the anchor node above.
+        indexnode = sphinx.addnodes.index(entries=[])
+        indexnode['entries'].append(
+            ('single', _('%s') % cv_name, nodes.make_id(cv_name), '')
+        )
+
+        return [ indexnode, node, fl, nn ]
+
+
+class TSConfVarRef(XRefRole):
+    def process_link(self, env, ref_node, explicit_title_p, title, target):
+        return title, target
+
+
+class TrafficServerDomain(Domain):
+    """
+    Apache Traffic Server Documentation.
+    """
+
+    name = 'ts'
+    label = 'Traffic Server'
+    data_version = 2
+
+    object_types = {
+        'cv': ObjType(l_('configuration variable'), 'cv')
+    }
+
+    directives = {
+        'cv' : TSConfVar
+    }
+
+    roles = {
+        'cv' : TSConfVarRef()
+    }
+
+    initial_data = {
+        'cv' : {} # full name -> docname
+    }
+
+    dangling_warnings = {
+        'cv' : "No definition found for configuration variable '%(target)s'"
+    }
+
+    def clear_doc(self, docname):
+        cv_list = self.data['cv']
+        for var, doc in cv_list.items():
+            if doc == docname:
+                del cv_list[var]
+
+    def find_doc(self, key, obj_type):
+        zret = None
+
+        if obj_type == 'cv' :
+            obj_list = self.data['cv']
+        else:
+            obj_list = None
+
+        if obj_list and key in obj_list:
+            zret = obj_list[key]
+
+        return zret
+
+    def resolve_xref(self, env, src_doc, builder, obj_type, target, node, cont_node):
+        dst_doc = self.find_doc(target, obj_type)
+        if (dst_doc):
+            return sphinx.util.nodes.make_refnode(builder, src_doc, dst_doc, nodes.make_id(target), cont_node, 'records.config')
+
+    def get_objects(self):
+        for var, doc in self.data['cv'].iteritems():
+            yield var, var, 'cv', doc, var, 1
+
+# These types are ignored as missing references for the C++ domain.
+EXTERNAL_TYPES = set((
+    'int', 'uint',
+    'uint8_t', 'uint16_t', 'uint24_t', 'uint32_t', 'uint64_t',
+    'int8_t', 'int16_t', 'int24_t', 'int32_t', 'int64_t',
+    'off_t', 'size_t', 'time_t',
+    'Event', 'INK_MD5', 'DLL<EvacuationBlock>',
+    ))
+
+# Clean up specific references that we know will never be defined but are implicitly used by
+# other domain directives. Hand convert them to literals.
+def xref_cleanup(app, env, node, contnode):
+    rdomain = node['refdomain']
+    rtype = node['reftype']
+    rtarget = node['reftarget']
+    if 'cpp' == rdomain:
+        if 'type' == rtype:
+            # one of the predefined type, or a pointer or reference to it.
+            if (rtarget in EXTERNAL_TYPES) or (('*' == rtarget[-1] or '&' == rtarget[-1]) and rtarget[:-1] in EXTERNAL_TYPES):
+                node = nodes.literal()
+                node += contnode
+                return node
+    return;
+
+def setup(app):
+    app.add_crossref_type('configfile', 'file',
+                        objname='Configuration file',
+                        indextemplate='pair: %s; Configuration files')
+
+    rst.roles.register_generic_role('arg', nodes.emphasis)
+    rst.roles.register_generic_role('const', nodes.literal)
+
+    app.add_domain(TrafficServerDomain)
+
+    # Types that we want the C domain to consider built in
+    for word in EXTERNAL_TYPES:
+        sphinx.domains.c.CObject.stopwords.add(word)
+
+    app.connect('missing-reference', xref_cleanup)
diff --git a/doc/glossary.en.rst b/doc/glossary.en.rst
new file mode 100644
index 00000000..94996db6
--- /dev/null
+++ b/doc/glossary.en.rst
@@ -0,0 +1,101 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+=============
+Glossary
+=============
+
+.. glossary::
+   :sorted:
+
+   continuation
+      A callable object that contains state. These are are mechanism used by Traffic Server to implement callbacks and
+      continued computations. Continued computations are critical to efficient processing of traffic because by avoiding
+      any blocking operations that wait on external events. In any such case a continuation is used so that other
+      processing can continue until the external event occurs. At that point the continuation is invoked to continue the
+      suspended processing. This can be considered similar to co-routines.
+
+   session
+      A single connection from a client to Traffic Server, covering all requests and responses on that connection. A
+      session starts when the client connection opens, and ends when the connection closes.
+
+   transaction
+      A client request and response, either from the origin server or from the cache. A transaction begins when Traffic
+      Server receives a request, and ends when Traffic Server sends the response.
+
+   cache volume
+      A user defined unit of persistent storage for the cache. Cache volumes are defined in :file:`volume.config`. A
+      cache volume is by default spread across :term:`cache span`\ s to increase robustness. Each section of a cache
+      volume on a specific cache span is a :term:`cache stripe`.
+
+   cache stripe
+      A homogenous persistent store for the cache in a single :term:`cache span`. A stripe always resides
+      entirely on a single physical device and is treated as an undifferentiated span of bytes. This is the smallest
+      independent unit of storage.
+
+   cache span
+      The physical storage described by a single line in :file:`storage.config`.
+
+   cache key
+      A byte sequence that is a globally unique identifier for an :term:`object <cache object>` in the cache. By default
+      the URL for the object is used.
+
+   cache ID
+      A 128 bit value used as a fixed sized identifier for an object in the cache. This is computed from the
+      :term:`cache key` using the `MD5 hashing function <http://www.openssl.org/docs/crypto/md5.html>`_.
+
+   cache tag
+      The bottom few bits (12 currently) of the :term:`cache ID`. This is used in the :ref:`cache directory <cache-directory>`
+      for a preliminary identity check before going to disk.
+
+   cache object
+      The minimal self contained unit of data in the cache. Cache objects are the stored version of equivalent content
+      streams from an origin server. A single object can have multiple variants called :term:`alternates <alternate>`.
+
+   alternate
+      A variant of a :term:`cache object`. This was originally created to handle the `VARY mechanism
+      <http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.44>`_ but has since been used for additional
+      purposes. All alternates of an object must be equivalent in some manner, that is they are alternate forms of the
+      same stream. The most common example is having normal and compressed versions of the stream.
+
+   storage unit
+      Obsolete term for :term:`cache span`.
+
+   revalidation
+      Verifying that a currently cached object is still valid. This is usually done using an `If-Modified-Since
+      <http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.25>`_ request which allows the origin server to
+      validate the content without resending the content.
+
+   write cursor
+      The location in a :term:`cache stripe` where new data is written.
+
+   directory segment
+      A contiguous group of :term:`buckets <directory bucket>`. Each :term:`cache stripe` has a set of segments all of
+      which have the same number of buckets, although the number of buckets per segment can vary between cache stripes.
+      Segments are administrative in purpose to minimize the size of free list and hash bucket pointers.
+
+   directory bucket
+      A contiguous fixed sized group of :term:`directory entries <directory entry>`. This is used for hash bucket
+      maintenance optimization.
+
+   directory entry
+      An in memory entry that describes a :term:`cache fragment`.
+
+   cache fragment
+      The unit of storage in the cache. All reads from the cache always read exactly one fragment. Fragments may be
+      written in groups, but every write is always an integral number of fragments. Each fragment has a corresponding
+      :term:`directory entry` which describes its location in the cache storage.
diff --git a/doc/index.rst b/doc/index.rst
new file mode 100644
index 00000000..aed32f00
--- /dev/null
+++ b/doc/index.rst
@@ -0,0 +1,53 @@
+Apache Traffic Server
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+
+Apache Traffic Server™ speeds Internet access, enhances website
+performance, and delivers unprecedented web hosting capabilities.
+
+What Is Apache Traffic Server?
+==============================
+
+Traffic Server is a high-performance web proxy cache that improves
+network efficiency and performance by caching frequently-accessed
+information at the edge of the network. This brings content physically
+closer to end users, while enabling faster delivery and reduced
+bandwidth use. Traffic Server is designed to improve content delivery
+for enterprises, Internet service providers (ISPs), backbone
+providers, and large intranets by maximizing existing and available
+bandwidth.
+
+.. toctree::
+  :maxdepth: 1
+
+  admin/index.en
+  sdk/index.en
+  reference/configuration/index.en
+  reference/commands/index.en
+  reference/plugins/index.en
+  reference/api/index.en
+  arch/index.en
+  glossary.en
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`search`
diff --git a/doc/locale/ja/LC_MESSAGES/admin/cluster-howto.en.po b/doc/locale/ja/LC_MESSAGES/admin/cluster-howto.en.po
new file mode 100644
index 00000000..a0f0fa8d
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/cluster-howto.en.po
@@ -0,0 +1,308 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/cluster-howto.en.rst:4
+msgid "Traffic Server Cluster"
+msgstr "Traffic Server クラスター"
+
+#: ../../admin/cluster-howto.en.rst:25
+msgid ""
+"Traffic Server scales from a single node to multiple nodes that form a "
+"cluster allowing you to improve system performance and reliability."
+msgstr ""
+"Traffic Server は単一ノードからシステムのパフォーマンスと信頼性を向上するク"
+"ラスターを構成する複数ノードまでスケールします。"
+
+#: ../../admin/cluster-howto.en.rst:32
+msgid "Understanding Traffic Server Clusters"
+msgstr "Traffic Server クラスターの理解"
+
+#: ../../admin/cluster-howto.en.rst:34
+msgid ""
+"A Traffic Server cluster consists of multiple Traffic Server nodes. The "
+"nodes in a cluster share configuration information and can form a single "
+"logical cache. Traffic Server detects the addition and deletion of nodes in "
+"the cluster automatically and can detect when a node is unavailable. "
+"Traffic Server uses its own protocol for clustering, which is multicast for "
+"node location and heartbeat, but unicast for all data exchange within the "
+"cluster. Traffic Server has two clustering modes:"
+msgstr ""
+"Traffic Server クラスターは複数の Traffic Server ノードから構成されます。ク"
+"ラスター内のノードは設定情報を共有し一つの論理的なキャッシュを形成します。"
+"Traffic Server はクラスター内のノードの追加と削除を自動的に検知し、ノードが"
+"利用不能になったことも検知します。Traffic Server はクラスタリングのために、"
+"ノードの位置確認と生存確認にマルチキャストを、クラスター内のすべてのデータ交"
+"換をユニキャストで行う独自のプロトコルを使用します。Traffic Server は二つの"
+"クラスタリングモードを持ちます。"
+
+#: ../../admin/cluster-howto.en.rst:42
+msgid "Management-only mode; refer to `Management-Only Clustering`_ below."
+msgstr "管理専用モード。`管理専用クラスタリング`_\\ を参照してください。"
+
+#: ../../admin/cluster-howto.en.rst:43
+msgid "Full-clustering mode; refer to `Full Clustering`_"
+msgstr ""
+"完全クラスタリングモード。`完全クラスタリング`_\\ を参照してください。"
+
+#: ../../admin/cluster-howto.en.rst:46
+msgid "Management-Only Clustering"
+msgstr "管理専用クラスタリング"
+
+#: ../../admin/cluster-howto.en.rst:48
+msgid ""
+"In management-only clustering mode, Traffic Server cluster nodes share "
+"configuration information. You can administer all the nodes at the same "
+"time. Traffic Server uses a multicast management protocol to provide a "
+"single system image of your Traffic Server cluster. Information about "
+"cluster membership, configuration, and exceptions is shared across all "
+"nodes, and the :program:`traffic_manager` process automatically propagates "
+"configuration changes to all the nodes."
+msgstr ""
+"管理専用クラスタリングモードでは、Traffic Server クラスターノードは設定情報"
+"を共有します。すべてのノードを同時に管理できます。Traffic Server は Traffic "
+"Server クラスターの単一のシステムイメージを提供するためにマルチキャスト管理"
+"プロトコルを使用します。クラスターメンバー、設定、例外に関する情報がすべての"
+"ノード間で共有され、:program:`traffic_manager` プロセスは自動的に設定の変更"
+"をすべてのノードに伝搬します。"
+
+#: ../../admin/cluster-howto.en.rst:57
+msgid "Full Clustering"
+msgstr "完全クラスタリング"
+
+#: ../../admin/cluster-howto.en.rst:59
+msgid ""
+"In full-clustering mode, as well as sharing configuration information, a "
+"Traffic Server cluster distributes its cache across its nodes into a "
+"single, virtual object store, rather than replicating the cache node by "
+"node. Traffic Server can provide an enormous aggregate cache size and can "
+"maximize cache hit rate by storing objects only once across the entire "
+"cluster."
+msgstr ""
+"完全クラスタリングモードでは、設定情報と同様に、Traffic Server クラスターは"
+"キャッシュをノードごとに複製するのではなく、ノードをまたいだ単一の仮想オブ"
+"ジェクトストアに配信します。Traffic Server はをクラスター全体にたった一度だ"
+"けオブジェクトを保存する事で巨大な総キャッシュサイズの提供ととキャッシュヒッ"
+"ト率の最大化を可能とします。"
+
+#: ../../admin/cluster-howto.en.rst:66
+msgid ""
+"A fully clustered Traffic Server maps objects to specific nodes in the "
+"cluster. When a node receives a request, it checks to see if the request is "
+"a hit somewhere in the cluster. If the request is a hit on a different "
+"node, the node handling the request obtains the object from the hit node "
+"and serves it to the client. Traffic Server uses its own communication "
+"protocol to obtain an object from sibling cluster nodes."
+msgstr ""
+"完全にクラスター化された Traffic Server はオブジェクトをクラスター内の特定の"
+"ノードに割り当てます。ノードがリクエストを受け取ると、リクエストがクラスター"
+"内のどこかでヒットするか確認します。リクエストが他のノードでヒットした場合、"
+"ヒットしたノードからオブジェクトを読み取ってクライアントに返すようリクエスト"
+"を扱います。Traffic Server は隣のクラスターノードからオブジェクトを読み取る"
+"ために独自のコミュニケーションプロトコルを使用します。"
+
+#: ../../admin/cluster-howto.en.rst:73
+msgid ""
+"If a node fails or is shut down and removed, Traffic Server removes "
+"references to the missing node on all nodes in the cluster."
+msgstr ""
+"ノードが動作不能になったりシャットダウンされたり削除されたりすると、Traffic "
+"Server はクラスター内のすべてのノード上にある失われたノードへの参照を削除し"
+"ます。"
+
+#: ../../admin/cluster-howto.en.rst:76
+msgid ""
+"Full clustering recommends a dedicated network interface for cluster "
+"communication to get better performance."
+msgstr ""
+"完全クラスタリングはより良いパフォーマンスを得るためにクラスターのコミュニ"
+"ケーションのための専用のネットワークインターフェースを推奨します。"
+
+#: ../../admin/cluster-howto.en.rst:80
+msgid "Enabling Clustering Mode"
+msgstr "クラスタリングモードの有効化"
+
+#: ../../admin/cluster-howto.en.rst:82
+msgid ""
+"Before you put a node into a cluster, please make sure the following things "
+"are in order:"
+msgstr ""
+"ノードをクラスターに投入する前に、次のことが適切であることを確認してくださ"
+"い。"
+
+#: ../../admin/cluster-howto.en.rst:85
+msgid "You are using the same operation system on all nodes:"
+msgstr "すべてのノードで同じオペレーティングシステムを使用していること:"
+
+#: ../../admin/cluster-howto.en.rst:87
+msgid "Using the same distribution, e.g.: RHEL 5.5"
+msgstr "同じディストリビューションを使用していること。例: RHEL 5.5"
+
+#: ../../admin/cluster-howto.en.rst:88
+msgid "Have same kernel, e.g.: 2.6.18-194.17.1.el5"
+msgstr "同じカーネルを使っていること。例: 2.6.18-194.17.1.el5"
+
+#: ../../admin/cluster-howto.en.rst:89
+msgid "The same architecture, e.g.: ``x86_64``"
+msgstr "同じアーキテクチャであること。例: ``x86_64``"
+
+#: ../../admin/cluster-howto.en.rst:91
+msgid "You have the same version of Traffic Server installed"
+msgstr "同じバージョンの Traffic Server がインストールされていること"
+
+#: ../../admin/cluster-howto.en.rst:92
+msgid "The same hardware"
+msgstr "同じハードウェアであること"
+
+#: ../../admin/cluster-howto.en.rst:93
+msgid "On the same switch or same VLAN."
+msgstr "同じスイッチもしくは同じ VLAN 上にあること"
+
+#: ../../admin/cluster-howto.en.rst:95
+msgid ""
+"Traffic Server does not apply the clustering mode change to all the nodes "
+"in the cluster. You must change the clustering mode on each node "
+"individually. You may following these instructions:"
+msgstr ""
+"Traffic Server はクラスタリングモードの変更をクラスター内のすべてのノードに"
+"適用しません。クラスタリングモードは各ノードで個別に変更しなければなりませ"
+"ん。次の指示に従ってください。"
+
+#: ../../admin/cluster-howto.en.rst:99
+msgid ""
+"setup the same cluster name, with :ts:cv:`proxy.config.proxy_name`, e.g. "
+"MyCluster."
+msgstr ""
+":ts:cv:`proxy.config.proxy_name` に同じクラスター名をセットアップする。例 "
+"MyCluster"
+
+#: ../../admin/cluster-howto.en.rst:101
+msgid ""
+"Set :ts:cv:`proxy.local.cluster.type` to ``1``, to enable cluster mode."
+msgstr ""
+"クラスターモードを有効化するために :ts:cv:`proxy.local.cluster.type`を "
+"``1`` に設定する。"
+
+#: ../../admin/cluster-howto.en.rst:103
+msgid ""
+"Setup a :ts:cv:`proxy.config.cluster.ethernet_interface`, e.g.: ``eth0``. "
+"This should be replaced by your real interface; we recommends a dedicated "
+"interface here. Refer to :ts:cv:`proxy.local.cluster.type` for a full "
+"description."
+msgstr ""
+":ts:cv:`proxy.config.cluster.ethernet_interface` を設定する。例: ``eth0`` 。"
+"これは実際のインターフェース名に置き換えてください。これは専用のインター"
+"フェースにすることをお勧めします。完全な説明については :ts:cv:`proxy.local."
+"cluster.type` を参照してください。"
+
+#: ../../admin/cluster-howto.en.rst:107
+msgid "enable: ::"
+msgstr "有効化 ::"
+
+#: ../../admin/cluster-howto.en.rst:111
+msgid "restart: ::"
+msgstr "リスタート ::"
+
+#: ../../admin/cluster-howto.en.rst:115
+msgid ""
+"The :program:`traffic_server` and :program:`traffic_manager` processes will "
+"need to restart after the change of :ts:cv:`proxy.local.cluster.type` and :"
+"ts:cv:`proxy.config.cluster.ethernet_interface` have taken place."
+msgstr ""
+":program:`traffic_server` と :program:`traffic_manager` のプロセスは :ts:cv:"
+"`proxy.local.cluster.type` と :ts:cv:`proxy.config.cluster."
+"ethernet_interface` の変更が行われた後にリスタートする必要があります。"
+
+#: ../../admin/cluster-howto.en.rst:119
+msgid ""
+"Traffic Server will join the cluster in about 10 seconds, and you can run :"
+"option:`traffic_line -r` `proxy.process.cluster.nodes` to check the hosts "
+"in the cluster, or check out the :file:`cluster.config` in the "
+"configuration directory."
+msgstr ""
+"Traffic Server は約 10 秒でクラスターに加わり、クラスター内のホストを確認し"
+"たり、設定ディレクトリ内の :file:`cluster.config` を確認するために :option:"
+"`traffic_line -r` `proxy.process.cluster.nodes` を実行することができます。"
+
+#: ../../admin/cluster-howto.en.rst:125
+msgid ""
+"After a successful join of the cluster, all changes of global "
+"configurations on any node, will take effect on **all** nodes."
+msgstr ""
+"クラスターへの参加が成功した後、どのノード上であってもグローバル設定のあらゆ"
+"る変更は\\ *すべて*\\ のノードに影響します。"
+
+#: ../../admin/cluster-howto.en.rst:129
+msgid "Deleting Nodes from a Cluster"
+msgstr "クラスターからのノードの削除"
+
+#: ../../admin/cluster-howto.en.rst:131
+msgid ""
+"To delete a node from the Traffic Server cluster, just roll back :ts:cv:"
+"`proxy.local.cluster.type` to the default value 3 and reload."
+msgstr ""
+"Traffic Server クラスターからノードを削除するためには、単に :ts:cv:`proxy."
+"config.cluster.type` をデフォルト値の 3 に戻して再読み込みを行ってください。"
+
+#: ../../admin/cluster-howto.en.rst:135
+msgid "Performance tweak for busy Cluster"
+msgstr "多忙なクラスターのパフォーマンス調整"
+
+#: ../../admin/cluster-howto.en.rst:137
+msgid ""
+"Starting from v3.2.0, Apache Traffic Server can handle multiple internal "
+"cluster connections, and we can tweak for the Cluster threads and each of "
+"the thread will keep one connection to all of the cluster machines:"
+msgstr ""
+"v3.2.0 から、Apache Traffic Server は複数の内部クラスター接続を扱えるように"
+"なり、クラスタースレッドと各スレッドが全クラスターマシンに対して一つの接続を"
+"維持するよう調整できるようになりました。"
+
+#: ../../admin/cluster-howto.en.rst:141
+msgid "Increasing Cluster threads:"
+msgstr "クラスタースレッドの増加:"
+
+#: ../../admin/cluster-howto.en.rst:143
+msgid ""
+"In the cluster env, the current performance of the Cluster threads will "
+"consume the same cpu usage as net threads, so you may adapt the ET_NET & "
+"ET_CLUSTER at about 1:1. For example, on a 24 cores system, set ET_NET "
+"threads & ET_CLUSTER threads to 10, by setting :ts:cv:`proxy.config.cluster."
+"threads` to ``10``."
+msgstr ""
+"クラスター環境では、現在のクラスタースレッドのパフォーマンスはネットスレッド"
+"と同じだけ CPU を使用するので、ET_NET と ET_CLUSTER を約 1:1 に調整してもよ"
+"いでしょう。例えば、24 コアのシステム上では、:ts:cv:`proxy.config.cluster."
+"threads` を ``10`` に設定することで ET_NET スレッドと ET_CLUSTER スレッドを "
+"10 に設定します。"
+
+#: ../../admin/cluster-howto.en.rst:153
+msgid ""
+"with these tweaks, we can archive about 10gbps traffic for the internal "
+"cluster transfer speed."
+msgstr ""
+"これらの調整により、内部クラスター転送速度 10gbps を達成することができます。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/configuring-cache.en.po b/doc/locale/ja/LC_MESSAGES/admin/configuring-cache.en.po
new file mode 100644
index 00000000..9aadb006
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/configuring-cache.en.po
@@ -0,0 +1,593 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/configuring-cache.en.rst:4
+msgid "Configuring the Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:23
+msgid ""
+"The Traffic Server cache consists of a high-speed object database called "
+"the **object store** that indexes objects according to URLs and their "
+"associated headers."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:31
+msgid "The Traffic Server Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:33
+msgid ""
+"The Traffic Server cache consists of a high-speed object database called "
+"the **object store**. The object store indexes objects according to URLs "
+"and associated headers. This enables Traffic Server to store, retrieve, and "
+"serve not only web pages, but also parts of web pages - which provides "
+"optimum bandwidth savings. Using sophisticated object management, the "
+"object store can cache alternate versions of the same object (versions may "
+"differ because of dissimilar language or encoding types). It can also "
+"efficiently store very small and very large documents, thereby minimizing "
+"wasted space. When the cache is full, Traffic Server removes stale data to "
+"ensure the most requested objects are kept readily available and fresh."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:45
+msgid ""
+"Traffic Server is designed to tolerate total disk failures on any of the "
+"cache disks. If the disk fails completely, then Traffic Server marks the "
+"entire disk as corrupt and continues using the remaining disks. An alarm is "
+"then created to indicate which disk failed. If all of the cache disks fail, "
+"then Traffic Server goes into proxy-only mode."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:51
+msgid "You can perform the following cache configuration tasks:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:53
+msgid ""
+"Change the total amount of disk space allocated to the cache: refer to "
+"`Changing Cache Capacity`_."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:55
+msgid ""
+"Partition the cache by reserving cache disk space for specific protocols "
+"and origin servers/domains: refer to `Partitioning the Cache`_."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:57
+msgid "Delete all data in the cache: refer to `Clearing the Cache`_."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:64
+msgid "The RAM Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:66
+msgid ""
+"Traffic Server maintains a small RAM cache of extremely popular objects. "
+"This RAM cache serves the most popular objects as quickly as possible and "
+"reduces load on disks, especially during temporary traffic peaks. You can "
+"configure the RAM cache size to suit your needs, as described in :ref:"
+"`changing-the-size-of-the-ram-cache` below."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:79
+msgid ""
+"Both the **LRU** and **CLFUS** RAM caches support a configuration to "
+"increase scan resistance. In a typical **LRU**, if you request all possible "
+"objects in sequence, you will effectively churn the cache on every request. "
+"The option :ts:cv:`proxy.config.cache.ram_cache.use_seen_filter` can be set "
+"to add some resistance against this problem."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:85
+msgid ""
+"In addition, **CLFUS** also supports compressing in the RAM cache itself. "
+"This can be useful for content which is not compressed by itself (e.g. "
+"images). This should not be confused with *Content-Encoding: gzip*, this "
+"feature is only thereto save space internally in the RAM cache itself. As "
+"such, it is completely transparent to the User-Agent. The RAM cache "
+"compression is enabled with the option :ts:cv:`proxy.config.cache.ram_cache."
+"compress`. The default is 0, which means no compression. Other possible "
+"values are 1 for **fastlz**, 2 for **libz** and 3 for **liblzma**."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:99
+msgid "Changing the Size of the RAM Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:101
+msgid ""
+"Traffic Server provides a dedicated RAM cache for fast retrieval of popular "
+"small objects. The default RAM cache size is automatically calculated based "
+"on the number and size of the cache partitions you have configured. If "
+"you've partitioned your cache according to protocol and/or hosts, then the "
+"size of the RAM cache for each partition is proportional to the size of "
+"that partition."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:108
+msgid ""
+"You can increase the RAM cache size for better cache hit performance. "
+"However, if you increase the size of the RAM cache and observe a decrease "
+"in performance (such as increased latencies), then it's possible that the "
+"operating system requires more memory for network resources. In such "
+"instances, you should return the RAM cache size to its previous value."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:115
+msgid "To change the RAM cache size:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:117
+#: ../../admin/configuring-cache.en.rst:142
+#: ../../admin/configuring-cache.en.rst:155
+msgid "Stop Traffic Server."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:118
+msgid ""
+"Set the variable :ts:cv:`proxy.config.cache.ram_cache.size` to specify the "
+"size of the RAM cache. The default value of -1 means that the RAM cache is "
+"automatically sized at approximately 1MB per gigabyte of disk."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:122
+msgid ""
+"Restart Traffic Server. If you increase the RAM cache to a size of 1GB or "
+"more, then restart with the :program:`trafficserver` command (refer to :ref:"
+"`start-traffic-server`)."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:129
+msgid "Changing Cache Capacity"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:131
+msgid ""
+"You can increase or reduce the total amount of disk space allocated to the "
+"cache without clearing the content. To check the size of the cache (in "
+"bytes), enter the command :option:`traffic_line -r` ``proxy.process.cache."
+"bytes_total``."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:136
+msgid "Increasing Cache Capacity"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:138
+msgid ""
+"To increase the total amount of disk space allocated to the cache on "
+"existing disks or to add new disks to a Traffic Server node, follow the "
+"steps below:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:143
+msgid "Add hardware, if necessary."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:144
+msgid ""
+"Edit :file:`storage.config` to increase the amount of disk space allocated "
+"to the cache on existing disks or describe the new hardware you are adding."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:146
+#: ../../admin/configuring-cache.en.rst:159
+#: ../../admin/configuring-cache.en.rst:188
+msgid "Restart Traffic Server."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:149
+msgid "Reducing Cache Capacity"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:151
+msgid ""
+"To reduce the total amount of disk space allocated to the cache on an "
+"existing disk or to remove disks from a Traffic Server node, follow the "
+"steps below:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:156
+msgid "Remove hardware, if necessary."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:157
+msgid ""
+"Edit :file:`storage.config` to reduce the amount of disk space allocated to "
+"the cache on existing disks or delete the reference to the hardware you're "
+"removing."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:161
+msgid ""
+"In :file:`storage.config`, a formatted or raw disk must be at least 128 MB."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:166
+msgid "Partitioning the Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:168
+msgid ""
+"You can manage your cache space more efficiently and restrict disk usage by "
+"creating cache volumes with different sizes for specific protocols. You can "
+"further configure these volumes to store data from specific origin servers "
+"and/or domains. The volume configuration must be the same on all nodes in "
+"a :ref:`cluster <traffic-server-cluster>`."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:175
+msgid "Creating Cache Partitions for Specific Protocols"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:177
+msgid ""
+"You can create separate volumes for your cache that vary in size to store "
+"content according to protocol. This ensures that a certain amount of disk "
+"space is always available for a particular protocol. Traffic Server "
+"currently supports the **http** partition type for HTTP objects."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:184
+msgid "To partition the cache according to protocol:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:186
+msgid ""
+"Enter a line in the :file:`volume.config` file for each volume you want to "
+"create"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:191
+msgid "Making Changes to Partition Sizes and Protocols"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:193
+msgid ""
+"After you've configured your cache volumes based on protocol, you can make "
+"changes to the configuration at any time. Before making changes, note the "
+"following:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:197
+msgid ""
+"You must stop Traffic Server before you change the cache volume size and "
+"protocol assignment."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:199
+msgid ""
+"When you increase the size of a volume, the contents of the volume are "
+"*not* deleted. However, when you reduce the size of a volume, the contents "
+"of the volume *are* deleted."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:202
+msgid ""
+"When you change the volume number, the volume is deleted and then "
+"recreated, even if the size and protocol type remain the same."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:204
+msgid ""
+"When you add new disks to your Traffic Server node, volume sizes specified "
+"in percentages will increase proportionately."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:206
+msgid ""
+"A lot of changes to volume sizes might result in disk fragmentation, which "
+"affects performance and hit rate. You should clear the cache before making "
+"many changes to cache volume sizes (refer to `Clearing the Cache`_)."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:211
+msgid "Partitioning the Cache According to Origin Server or Domain"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:213
+msgid ""
+"After you have partitioned the cache according to size and protocol, you "
+"can assign the volumes you created to specific origin servers and/or "
+"domains. You can assign a volumes to a single origin server or to multiple "
+"origin servers. However, if a volumes is assigned to multiple origin "
+"servers, then there is no guarantee on the space available in the volumes "
+"for each origin server. Content is stored in the volumes according to "
+"popularity. In addition to assigning volumes to specific origin servers and "
+"domains, you must assign a generic volume to store content from all origin "
+"servers and domains that are not listed. This generic volume is also used "
+"if the partitions for a particular origin server or domain become corrupt. "
+"If you do not assign a generic volume, then Traffic Server will run in "
+"proxy-only mode."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:228
+msgid ""
+"You do *not* need to stop Traffic Server before you assign volumes to "
+"particular hosts or domains. However, this type of configuration is time-"
+"consuming and can cause a spike in memory usage. Therefore, it's best to "
+"configure partition assignment during periods of low traffic."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:234
+msgid "To partition the cache according to hostname and domain:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:236
+msgid ""
+"Configure the cache volumes according to size and protocol, as described in "
+"`Creating Cache Partitions for Specific Protocols`_."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:238
+msgid ""
+"Create a separate volume based on protocol for each host and domain, as "
+"well as an additional generic partition to use for content that does not "
+"belong to these origin servers or domains. The volumes do not need to be "
+"the same size."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:242
+msgid ""
+"Enter a line in the :file:`hosting.config` file to allocate the volume(s) "
+"used for each origin server and/or domain"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:244
+msgid ""
+"Assign a generic volume to use for content that does not belong to any of "
+"the origin servers or domains listed in the file. If all volumes for a "
+"particular origin server become corrupt, then Traffic Server will also use "
+"the generic volume to store content for that origin server as per :file:"
+"`hosting.config`."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:249
+#: ../../admin/configuring-cache.en.rst:262
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:253
+msgid "Configuring the Cache Object Size Limit"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:255
+msgid ""
+"By default, Traffic Server allows objects of any size to be cached. You can "
+"change the default behavior and specify a size limit for objects in the "
+"cache via the steps below:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:259
+msgid ""
+"Set :ts:cv:`proxy.config.cache.max_doc_size` to specify the maximum size "
+"allowed for objects in the cache in bytes. ``0`` (zero) if you do not want "
+"a size limit."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:268
+msgid "Clearing the Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:270
+msgid ""
+"When you clear the cache, you remove all data from the entire cache - "
+"including data in the host database. You should clear the cache before "
+"performing certain cache configuration tasks, such as partitioning. You "
+"cannot clear the cache when Traffic Server is running."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:275
+msgid "To clear the cache:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:277
+msgid ""
+"Stop Traffic Server (refer to :ref:`Stopping Traffic Server <stop-traffic-"
+"server>`)"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:278
+msgid "Enter the following command to clear the cache: ::"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:282
+msgid ""
+"The ``clear`` command deletes all data in the object store and the host "
+"database. Traffic Server does not prompt you to confirm the deletion."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:286
+msgid ""
+"Restart Traffic Server (refer to :ref:`Starting Traffic Server <start-"
+"traffic-server>`)."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:289
+msgid "Removing an Object From the Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:291
+msgid ""
+"Traffic Server accepts the custom HTTP request method ``PURGE`` when "
+"removing a specific object from cache. If the object is found in the cache "
+"and is successfully removed, then Traffic Server responds with a ``200 OK`` "
+"HTTP message; otherwise, a ``404 File Not Found`` message is returned."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:297
+msgid ""
+"In the following example, Traffic Server is running on the domain ``example."
+"com`` and you want to remove the image ``remove_me.jpg`` from cache. "
+"Because by default we do not permit ``PURGE`` requests from any other IP, "
+"we connect to the daemon via localhost: ::"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:316
+msgid ""
+"The next time Traffic Server receives a request for the removed object, it "
+"will contact the origin server to retrieve it (i.e., it has been purged "
+"from the Traffic Server cache)."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:320
+msgid ""
+"Note: The procedure above only removes an object from a *specific* Traffic "
+"Server cache. Users may still see the old (removed) content if it was "
+"cached by intermediary caches or by the end-users' web browser."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:327
+msgid "Inspecting the Cache"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:336
+msgid "Accessing the Cache Inspector Utility"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:338
+msgid "To access the Cache Inspector utility, follow the steps below:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:340
+msgid "Set :ts:cv:`proxy.config.http_ui_enabled` to ``1``."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:341
+msgid ""
+"To access the cache inspector in reverse proxy mode, you must add a remap "
+"rule to :file:`remap.config` to expose the URL. This should be restricted "
+"to a limited set of hosts using the ``@src_ip`` option. To restrict access "
+"to the network 172.28.56.0/24, use ::"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:348
+msgid ""
+"From the Traffic Server ``bin`` directory, enter the following command to "
+"re-read the configuration file: ``traffic_line -x``"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:350
+msgid ""
+"Open your web browser and configure it to use your Traffic Server as a "
+"proxy server. Type the following URL::"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:355
+msgid "The Cache page opens."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:358
+msgid "Using the Cache Page"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:360
+msgid ""
+"The **Cache page** provides several options that enable you to view and "
+"delete the contents of your cache:"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:363
+msgid ""
+"Click **Lookup url** to search for a particular URL in the cache. When "
+"Traffic Server finds the URL in the cache, it displays details about the "
+"object that corresponds to the URL (such as the header length and the "
+"number of alternates). From the display page, you can delete the URL from "
+"the cache."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:368
+msgid ""
+"Click **Delete url** to delete a particular URL or list of URLs from the "
+"cache. Traffic Server indicates if a delete is successful."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:370
+msgid ""
+"Click **Regex lookup** to search for URLs that match one or more regular "
+"expressions. From the display page, you can delete the URLs listed. For "
+"example, enter the following to search for all URLs that end in html and "
+"are prefixed with ``http://www.dianes.com``: ``http://www.dianes.com/.*\\."
+"html$``"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:375
+msgid ""
+"Click **Regex delete** to delete all URLs that match a specified regular "
+"expression. For example, enter the following to delete all HTTP URLs that "
+"end in ``html``: ``http://.*\\.html$``"
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:378
+msgid ""
+"Click **Regex invalidate** to invalidate URLs that match a specified "
+"regular expression. When you invalidate a URL, Traffic Server marks the "
+"object that corresponds to the URL as stale in the cache. Traffic Server "
+"then contacts the origin server to check if the object is still fresh "
+"(revalidates) before serving it from the cache."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:386
+msgid ""
+"Only one administrator should delete and invalidate cache entries from the "
+"Cache page at any point in time. Changes made by multiple administrators at "
+"the same time can lead to unpredictable results."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:58
+msgid ""
+"Override cache directives for a requested domain name, regex on a url, "
+"hostname or ip, with extra filters for time, port, method of the request "
+"(and more). ATS can be configured to never cache; always cache; ignore no-"
+"cache directives, etc. These are configured in :file:`cache.config`."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:72
+msgid ""
+"The RAM cache supports two cache eviction algorithms, a regular **LRU** "
+"(*Least Recently Used*) and the more advanced **CLFUS** (*Clocked Least "
+"Frequently Used by Size*, which balances recentness, frequency and size to "
+"maximize hit rate -- similar to a most frequently used algorithm). The "
+"default is to use **CLFUS**, and this is controlled via :ts:cv:`proxy."
+"config.cache.ram_cache.algorithm`."
+msgstr ""
+
+#: ../../admin/configuring-cache.en.rst:329
+msgid ""
+"Traffic Server provides a Cache Inspector utility that enables you to view, "
+"delete, and invalidate URLs in the cache (HTTP only). The Cache Inspector "
+"utility is a powerful tool that's capable of deleting *all* the objects in "
+"your cache; therefore, make sure that only authorized administrators are "
+"allowed to access this utility, see :ref:`controlling-client-access-to-"
+"cache` and the ``@src_ip`` option in :file:`remap.config`."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/admin/configuring-traffic-server.en.po b/doc/locale/ja/LC_MESSAGES/admin/configuring-traffic-server.en.po
new file mode 100644
index 00000000..1d0c8ccc
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/configuring-traffic-server.en.po
@@ -0,0 +1,125 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/configuring-traffic-server.en.rst:5
+msgid "Configuring Traffic Server"
+msgstr "Traffic Server の設定"
+
+#: ../../admin/configuring-traffic-server.en.rst:24
+msgid "Traffic Server provides several options for configuring the system."
+msgstr ""
+"Traffic Server はシステムを設定するためのいくつかの方法を提供しています。"
+
+#: ../../admin/configuring-traffic-server.en.rst:32
+msgid "Configure Traffic Server Using Traffic Line"
+msgstr "Traffic Line を使用して Traffic Server を設定する"
+
+#: ../../admin/configuring-traffic-server.en.rst:34
+msgid ""
+"Traffic Line enables you to quickly and easily change your Traffic Server "
+"configuration via command-line interface. Alternatively, you can also use :"
+"program:`traffic_shell` to configure Traffic Server."
+msgstr ""
+"Traffic Line はコマンドラインインターフェースで手早く簡単に Traffic Server "
+"の設定を変更することを可能にします。あるいは Traffic Server を設定するため"
+"に :program:`traffic_shell` を使用することもできます。"
+
+#: ../../admin/configuring-traffic-server.en.rst:39
+msgid "View Configuration Options in Traffic Line"
+msgstr "Traffic Line で設定項目を見る"
+
+#: ../../admin/configuring-traffic-server.en.rst:41
+msgid "To view a configuration setting, enter the following command::"
+msgstr "設定内容を見るには次のコマンドを入力してください"
+
+#: ../../admin/configuring-traffic-server.en.rst:45
+msgid ""
+"where ``var`` is the variable associated with the configuration option. For "
+"a list of variables, refer to :ref:`configuration-variables`."
+msgstr ""
+"``var`` の部分は設定項目に対応する変数です。変数の一覧については :ref:"
+"`configuration-variables` を参照してください。"
+
+#: ../../admin/configuring-traffic-server.en.rst:49
+msgid "Change Configuration Options in Traffic Line"
+msgstr "Traffic Line で設定項目を変更する"
+
+#: ../../admin/configuring-traffic-server.en.rst:51
+msgid ""
+"To change the value of a configuration setting, enter the following "
+"command::"
+msgstr "設定内容の値を変更するには次のコマンドを入力してください。"
+
+#: ../../admin/configuring-traffic-server.en.rst:56
+msgid ""
+"where ``var`` is the variable associated with the configuration option and "
+"``value`` is the value you want to use. For a list of the variables, see :"
+"ref:`configuration-variables`."
+msgstr ""
+"``var`` の部分は設定項目に対応する変数、``value`` は設定したい値です。変数の"
+"一覧については :ref:`configuration-variables` を見てください。"
+
+#: ../../admin/configuring-traffic-server.en.rst:61
+msgid "Configure Traffic Server Using Configuration Files"
+msgstr "設定ファイルを使用して Traffic Server を設定する"
+
+#: ../../admin/configuring-traffic-server.en.rst:63
+msgid ""
+"As an alternative to using Traffic Line or Traffic Shell, you can change "
+"Traffic Server configuration options by manually editing specific variables "
+"in the :file:`records.config` file. After modifying the :file:`records."
+"config`  file, Traffic Server must reread the configuration files: enter "
+"the Traffic Line command :option:`traffic_line -x`. You may need to restart "
+"Traffic Server to apply some of the configuration changes."
+msgstr ""
+"Traffic Line や Traffic Shell を使用する代わりに、:file:`records.config` "
+"ファイルの具体的な変数を手動で編集することで Traffic Server の設定項目を変更"
+"することができます。:file:`records.config` ファイルの修正後、Traffic Server "
+"は必ず設定ファイルを再読み込みしなくてはなりません。Traffic Line コマンド :"
+"option:`traffic_line -x` を入力してください。いくつかの設定の変更を適用する"
+"には Traffic Server を再起動する必要があるかもしれません。"
+
+#: ../../admin/configuring-traffic-server.en.rst:71
+msgid "The following is a sample portion of the :file:`records.config` file:"
+msgstr "以下は :file:`records.config` ファイルの部分的なサンプルです"
+
+#: ../../admin/configuring-traffic-server.en.rst:78
+msgid "Sample records.config file"
+msgstr "records.config ファイルのサンプル"
+
+#: ../../admin/configuring-traffic-server.en.rst:80
+msgid ""
+"In addition to the :file:`records.config` file, Traffic Server provides "
+"other configuration files that are used to configure specific features. You "
+"can manually edit all configuration files as described in :ref:"
+"`configuration-file-reference`."
+msgstr ""
+":file:`records.config` ファイルに加え、Traffic Server は特定の機能を設定する"
+"ために使用されるその他の複数の設定ファイルを提供します。:ref:`configuration-"
+"file-reference` で説明されているように、すべての設定ファイルを手動で編集する"
+"ことができます。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/event-logging-formats.en.po b/doc/locale/ja/LC_MESSAGES/admin/event-logging-formats.en.po
new file mode 100644
index 00000000..12d23655
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/event-logging-formats.en.po
@@ -0,0 +1,1022 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2014-01-12 17:37+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/event-logging-formats.en.rst:4
+msgid "Event Logging Formats"
+msgstr "イベントロギングフォーマット"
+
+#: ../../admin/event-logging-formats.en.rst:23
+msgid ""
+"This document provides a reference for all the different logging formats "
+"Traffic Server supports. Rather than just reading about those formats, you "
+"may also want to try our `online event log builder <http://trafficserver."
+"apache.org/logbuilder/>`_ for an interactive way of building and "
+"understanding log formats."
+msgstr ""
+"このドキュメントは Traffic Server がサポートしている全ての異なるロギング"
+"フォーマットについてのリファレンスを提供します。これらのフォーマットについて"
+"単に読むよりも、ログフォーマットのビルドと理解をインタラクティブに行うため"
+"に `online event log builder <http://trafficserver.apache.org/logbuilder/"
+">`_ を試す方がいいでしょう。"
+
+#: ../../admin/event-logging-formats.en.rst:36
+msgid "Custom Logging Fields"
+msgstr "カスタムログギングフィールド"
+
+#: ../../admin/event-logging-formats.en.rst:38
+msgid "The following list describes Traffic Server custom logging fields."
+msgstr "次のリストは Traffic Server のカスタムロギングフィールドの説明です。"
+
+#: ../../admin/event-logging-formats.en.rst:43
+msgid "``{HTTP header field name}cqh``"
+msgstr "``{HTTP header field name}cqh``"
+
+#: ../../admin/event-logging-formats.en.rst:41
+msgid ""
+"Logs the information in the requested field of the client request HTTP "
+"header. For example, ``%<{Accept-Language}cqh>`` logs the ``Accept-Language:"
+"`` field in client request headers."
+msgstr ""
+"クライアントのリクエストの HTTP ヘッダの指定されたフィールドの情報のログで"
+"す。例えば ``%<{Accept-Language}cqh>`` はクライアントリクエストヘッダーの "
+"``Accept-Language:`` フィールドを記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:48
+msgid "``{HTTP header field name}pqh``"
+msgstr "``{HTTP header field name}pqh``"
+
+#: ../../admin/event-logging-formats.en.rst:46
+msgid ""
+"Logs the information in the requested field of the proxy request HTTP "
+"header. For example, ``%<{Authorization}pqh>`` logs the ``Authorization:`` "
+"field in proxy request headers."
+msgstr ""
+"プロキシーのリクエストの HTTP ヘッダーの指定されたフィールドの情報を記録しま"
+"す。例えば ``%<{Authorization}pqh>`` はプロキシーリクエストヘッダー内の "
+"``Authorization:`` フィールドを記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:53
+msgid "``{HTTP header field name}psh``"
+msgstr "``{HTTP header field name}psh``"
+
+#: ../../admin/event-logging-formats.en.rst:51
+msgid ""
+"Logs the information in the requested field of the proxy response HTTP "
+"header. For example, ``%<{Retry-After}psh>`` logs the ``Retry-After:`` "
+"field in proxy response headers."
+msgstr ""
+"プロキシーのレスポンスの HTTP ヘッダーの指定されたフィールドの情報を記録しま"
+"す。例えば ``%<{Retry-After}psh>`` はプロキシーレスポンスヘッダーの ``Retry-"
+"After:`` フィールドを記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:58
+msgid "``{HTTP header field name}ssh``"
+msgstr "``{HTTP header field name}ssh``"
+
+#: ../../admin/event-logging-formats.en.rst:56
+msgid ""
+"Logs the information in the requested field of the server response HTTP "
+"header. For example, ``%<{Age}ssh>`` logs the ``Age:`` field in server "
+"response headers."
+msgstr ""
+"サーバーのレスポンスの HTTP ヘッダーの指定されたフィールドの情報を記録しま"
+"す。例えば ``%<{Age}ssh>`` はサーバーレスポンスヘッダーの ``Age:`` フィール"
+"ドを記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:62
+#: ../../admin/event-logging-formats.en.rst:332
+#: ../../admin/event-logging-formats.en.rst:347
+#: ../../admin/event-logging-formats.en.rst:364
+#: ../../admin/event-logging-formats.en.rst:390
+msgid "``caun``"
+msgstr "``caun``"
+
+#: ../../admin/event-logging-formats.en.rst:61
+msgid ""
+"The client authenticated username; result of the RFC931/ident lookup of the "
+"client username."
+msgstr ""
+"クライアントの認証されたユーザー名で、RFC931/ident lookup の結果のクライアン"
+"トユーザー名です。"
+
+#: ../../admin/event-logging-formats.en.rst:67
+#: ../../admin/event-logging-formats.en.rst:405
+msgid "``cfsc``"
+msgstr "``cfsc``"
+
+#: ../../admin/event-logging-formats.en.rst:65
+msgid ""
+"The client finish status code; specifies whether the client request to "
+"Traffic Server was successfully completed (``FIN``) or interrupted "
+"(``INTR``)."
+msgstr ""
+"クライアントの終了ステータスコード、 Traffic Server へのクライアントリクエス"
+"トが正しく完了した (``FIN``) もしくは中断された (``INTR``) のどちらかが記述"
+"されます。"
+
+#: ../../admin/event-logging-formats.en.rst:70
+#: ../../admin/event-logging-formats.en.rst:327
+#: ../../admin/event-logging-formats.en.rst:346
+#: ../../admin/event-logging-formats.en.rst:363
+#: ../../admin/event-logging-formats.en.rst:389
+msgid "``chi``"
+msgstr "``chi``"
+
+#: ../../admin/event-logging-formats.en.rst:70
+msgid "The IP address of the client's host machine."
+msgstr "クライアントのホストマシンの IP アドレス。"
+
+#: ../../admin/event-logging-formats.en.rst:73
+msgid "``chih``"
+msgstr "``chih``"
+
+#: ../../admin/event-logging-formats.en.rst:73
+msgid "The IP address of the client's host machine in hexadecimal."
+msgstr "16 進数表記でのクライアントのホストマシンの IP アドレス。"
+
+#: ../../admin/event-logging-formats.en.rst:80
+#: ../../admin/event-logging-formats.en.rst:371
+#: ../../admin/event-logging-formats.en.rst:397
+msgid "``cqbl``"
+msgstr "``cqbl``"
+
+#: ../../admin/event-logging-formats.en.rst:79
+msgid ""
+"The client request transfer length; the body length in the client request "
+"to Traffic Server (in bytes)."
+msgstr ""
+"クライアントリクエストの転送長、Traffic Server へのクライアントリクエストの"
+"ボディの長さです。( byte 単位 )"
+
+#: ../../admin/event-logging-formats.en.rst:84
+#: ../../admin/event-logging-formats.en.rst:373
+#: ../../admin/event-logging-formats.en.rst:399
+msgid "``cqhl``"
+msgstr "``cqhl``"
+
+#: ../../admin/event-logging-formats.en.rst:83
+msgid ""
+"The client request header length; the header length in the client request "
+"to Traffic Server."
+msgstr ""
+"クライアントリクエストヘッダーの長さ。Traffic Server へのクライアントリクエ"
+"ストのヘッダーの長さです。"
+
+#: ../../admin/event-logging-formats.en.rst:88
+#: ../../admin/event-logging-formats.en.rst:330
+msgid "``cqhm``"
+msgstr "``cqhm``"
+
+#: ../../admin/event-logging-formats.en.rst:87
+msgid ""
+"The HTTP method in the client request to Traffic Server: ``GET``, ``POST``, "
+"and so on (subset of ``cqtx``)."
+msgstr ""
+"Traffic Server へのクライアントリクエストの HTTP メソッド。``GET`` や "
+"``POST`` やその他のものです。( ``cqtx`` のサブセット )"
+
+#: ../../admin/event-logging-formats.en.rst:91
+msgid "``cqhv``"
+msgstr "``cqhv``"
+
+#: ../../admin/event-logging-formats.en.rst:91
+msgid "The client request HTTP version."
+msgstr "クライアントリクエストの HTTP バージョン。"
+
+#: ../../admin/event-logging-formats.en.rst:96
+msgid "``cqtd``"
+msgstr "``cqtd``"
+
+#: ../../admin/event-logging-formats.en.rst:94
+msgid ""
+"The client request timestamp. Specifies the date of the client request in "
+"the format yyyy-mm-dd, where yyyy is the 4-digit year, mm is the 2-digit "
+"month, and dd is the 2-digit day."
+msgstr ""
+"クライアントリクエストのタイムスタンプ。クライアントリクエストの日付を yyyy-"
+"mm-dd のフォーマットで記述します。。yyyy は 4 桁で年、mm は 2 桁で月、dd は "
+"2 桁で日を表します。"
+
+#: ../../admin/event-logging-formats.en.rst:100
+msgid "``cqtn``"
+msgstr "``cqtn``"
+
+#: ../../admin/event-logging-formats.en.rst:99
+msgid ""
+"The client request timestamp; date and time of the client's request (in the "
+"Netscape timestamp format)."
+msgstr ""
+"クライアントリクエストのタイムスタンプ。クライアントのリクエストの"
+"( Netscape タイムスタンプフォーマットでの) 日付と時間。"
+
+#: ../../admin/event-logging-formats.en.rst:103
+msgid "``cqtq``"
+msgstr "``cqtq``"
+
+#: ../../admin/event-logging-formats.en.rst:103
+msgid "The client request timestamp, with millisecond resolution."
+msgstr "ミリ秒精度のクライアントリクエストのタイムスタンプ。"
+
+#: ../../admin/event-logging-formats.en.rst:108
+#: ../../admin/event-logging-formats.en.rst:325
+msgid "``cqts``"
+msgstr "``cqts``"
+
+#: ../../admin/event-logging-formats.en.rst:106
+msgid ""
+"The client-request timestamp in Squid format; the time of the client "
+"request since January 1, 1970 UTC. Time is expressed in seconds, with "
+"millisecond resolution."
+msgstr ""
+"Squid フォーマットでのクライアントリクエストのタイムスタンプ。 1970 年 1 月 "
+"1 日からのクライアントリクエストの時間。時間は秒単位で、ミリ秒の精度です。"
+
+#: ../../admin/event-logging-formats.en.rst:114
+msgid "``cqtt``"
+msgstr "``cqtt``"
+
+#: ../../admin/event-logging-formats.en.rst:111
+msgid ""
+"The client request timestamp. The time of the client request in the format "
+"hh:mm:ss, where hh is the two-digit hour in 24-hour format, mm is the two-"
+"digit minutes value, and ss is the 2-digit seconds value (for example, "
+"16:01:19)."
+msgstr ""
+"クライアントリクエストのタイムスタンプ。hh:mm:ss フォーマット\n"
+"でのクライアントリクエストの時間で、hh は 2 桁の 24 時間表記で、mm は 2 桁の"
+"分の値、ss は 2 桁の秒の値です。(例 16:01:19)"
+
+#: ../../admin/event-logging-formats.en.rst:123
+msgid "``cqtx``"
+msgstr "``cqtx``"
+
+#: ../../admin/event-logging-formats.en.rst:117
+msgid "The full HTTP client request text, minus headers; for example, ::"
+msgstr "ヘッダーを除く HTTP クライアントリクエストテキストの全て。例えば"
+
+#: ../../admin/event-logging-formats.en.rst:121
+#: ../../admin/event-logging-formats.en.rst:129
+msgid ""
+"In reverse proxy mode, Traffic Server logs the rewritten/mapped URL "
+"(according to the rules in the :file:`remap.config` file), _not_ the "
+"pristine/unmapped URL."
+msgstr ""
+"リバースプロキシーモードでは Traffic Server は pristine/unmapped URL ではな"
+"く ( :file:`remap.config` ファイル内のルールに従って ) rewritten/mapped URL "
+"を記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:132
+msgid "``cqu``"
+msgstr "``cqu``"
+
+#: ../../admin/event-logging-formats.en.rst:126
+msgid ""
+"The universal resource identifier (URI) of the request from client to "
+"Traffic Server (subset of ``cqtx`` )."
+msgstr ""
+"Traffic Server へのクライアントからのリクエストの universal resource "
+"identifier (URI) (``cqtx`` のサブセット)"
+
+#: ../../admin/event-logging-formats.en.rst:141
+#: ../../admin/event-logging-formats.en.rst:331
+msgid "``cquc``"
+msgstr "``cquc``"
+
+#: ../../admin/event-logging-formats.en.rst:135
+msgid ""
+"The client request canonical URL. This differs from ``cqu`` in that blanks "
+"(and other characters that might not be parsed by log analysis tools) are "
+"replaced by escape sequences. The escape sequence is a percentage sign "
+"followed by the ASCII code number in hex."
+msgstr ""
+"クライアントリクエストの正規化 URL。 ``cqu`` との違いは空白 ( 他のログ分析"
+"ツールでパースされないかもしれない文字 ) がエスケープシーケンスに置換されて"
+"いることです。"
+
+#: ../../admin/event-logging-formats.en.rst:141
+msgid "See `cquuc`_."
+msgstr "`cquuc`_ を参照してください。"
+
+#: ../../admin/event-logging-formats.en.rst:149
+msgid "``cqup``"
+msgstr "``cqup``"
+
+#: ../../admin/event-logging-formats.en.rst:144
+msgid ""
+"The client request URL path; specifies the argument portion of the URL "
+"(everything after the host). For example, if the URL is ``http://www."
+"company.com/images/x.gif``, then this field displays ``/images/x.gif``"
+msgstr ""
+"クライアントリクエスト URL のパス。URL ( ホストの後ろの全て ) の項の部分を記"
+"述します。例えば URL が ``http://www.company.com/images/x.gif`` であれば、こ"
+"のフィールドは ``/images/x.gif`` と表示されます。"
+
+#: ../../admin/event-logging-formats.en.rst:149
+msgid "See `cquup`_."
+msgstr "`cquup`_　を参照してください。"
+
+#: ../../admin/event-logging-formats.en.rst:152
+msgid "``cqus``"
+msgstr "``cqus``"
+
+#: ../../admin/event-logging-formats.en.rst:152
+msgid "The client request URL scheme."
+msgstr "クライアントリクエスト URL のスキーム。"
+
+#: ../../admin/event-logging-formats.en.rst:158
+msgid "``cquuc``"
+msgstr "``cquuc``"
+
+#: ../../admin/event-logging-formats.en.rst:157
+msgid ""
+"The client request unmapped URL canonical. This field records a URL before "
+"it is remapped (reverse proxy mode)."
+msgstr ""
+"クライアントリクエストのマップされていない正規化 URL。このフィールドは リ"
+"マップされる前の URL を記録します。( リバースプロキシーモード )"
+
+#: ../../admin/event-logging-formats.en.rst:164
+msgid "``cquup``"
+msgstr "``cquup``"
+
+#: ../../admin/event-logging-formats.en.rst:163
+msgid ""
+"The client request unmapped URL path. This field records a URL path before "
+"it is remapped (reverse proxy mode)."
+msgstr ""
+"クライアントリクエストのマップされていない URL パス。このフィールドはリマッ"
+"プされる前の URL パスを記録します。( リバースプロキシーモード )"
+
+#: ../../admin/event-logging-formats.en.rst:170
+msgid "``cquuh``"
+msgstr "``cquuh``"
+
+#: ../../admin/event-logging-formats.en.rst:169
+msgid ""
+"The client request unmapped URL host. This field records a URL's host "
+"before it is remapped (reverse proxy mode)."
+msgstr ""
+"クライアントリクエストのマップされていない URL ホスト。このフィールドはリ"
+"マップされる前の URL のホストを記録します。( リバースプロキシーモード )"
+
+#: ../../admin/event-logging-formats.en.rst:173
+msgid "``crat``"
+msgstr "``crat``"
+
+#: ../../admin/event-logging-formats.en.rst:173
+msgid "The Retry-After time in seconds, if specified by the origin server."
+msgstr ""
+"オリジンサーバーによって指定されている場合、秒単位の Retry-After 時間。"
+
+#: ../../admin/event-logging-formats.en.rst:177
+#: ../../admin/event-logging-formats.en.rst:407
+msgid "``crc``"
+msgstr "``crc``"
+
+#: ../../admin/event-logging-formats.en.rst:176
+msgid ""
+"The cache result code; specifies how the cache responded to the request "
+"(``HIT``, ``MISS``, and so on)."
+msgstr ""
+"キャッシュ結果コード。どんなキャッシュをリクエストへ返したかを記述します。"
+"( ``HIT`` や ``MISS`` やその他 )"
+
+#: ../../admin/event-logging-formats.en.rst:181
+msgid "``csscl``"
+msgstr "``csscl``"
+
+#: ../../admin/event-logging-formats.en.rst:180
+msgid ""
+"The cached response length (in bytes) from origin server to Traffic Server."
+msgstr ""
+"キャッシュしたオリジンサーバーから Traffic Server へのレスポンスの長さ。"
+"( byte 単位 )"
+
+#: ../../admin/event-logging-formats.en.rst:185
+msgid "``csshl``"
+msgstr "``csshl``"
+
+#: ../../admin/event-logging-formats.en.rst:184
+msgid ""
+"The cached header length in the origin server response to Traffic Server "
+"(in bytes)."
+msgstr ""
+"キャッシュしたオリジンサーバーから Traffic Server へのヘッダーの長さ。"
+"( byte 単位 )"
+
+#: ../../admin/event-logging-formats.en.rst:188
+msgid "``csshv``"
+msgstr "``csshv``"
+
+#: ../../admin/event-logging-formats.en.rst:188
+msgid "The cached server response HTTP version (1.0, 1.1, etc.)."
+msgstr "キャッシュしたサーバーレスポンス HTTP バージョン。( 1.0 や 1.1 等 )"
+
+#: ../../admin/event-logging-formats.en.rst:192
+msgid "``csssc``"
+msgstr "``csssc``"
+
+#: ../../admin/event-logging-formats.en.rst:191
+msgid ""
+"The cached HTTP response status code from origin server to Traffic Server."
+msgstr ""
+"キャッシュしたオリジンサーバーから Traffic Server への HTTP レスポンスステー"
+"タスコード。"
+
+#: ../../admin/event-logging-formats.en.rst:195
+msgid "``cwr``"
+msgstr "``cwr``"
+
+#: ../../admin/event-logging-formats.en.rst:195
+msgid ""
+"The cache write result (``-``, ``WL_MISS``, ``INTR```, ``ERR`` or ``FIN``)"
+msgstr ""
+"キャッシュ書き込み結果。( ``-``、 ``WL_MISS``、 ``INTR```、 ``ERR`` または "
+"``FIN`` )"
+
+#: ../../admin/event-logging-formats.en.rst:198
+msgid "``cwtr``"
+msgstr "``cwtr``"
+
+#: ../../admin/event-logging-formats.en.rst:198
+msgid "The cache write transform result"
+msgstr "キャッシュ書き込みトランスフォーム結果。"
+
+#: ../../admin/event-logging-formats.en.rst:201
+msgid "``fsiz``"
+msgstr "``fsiz``"
+
+#: ../../admin/event-logging-formats.en.rst:201
+msgid "The size of the file (*n* bytes) as seen by the origin server."
+msgstr "オリジンサーバーから見えるファイルサイズ。( *n* バイト )"
+
+#: ../../admin/event-logging-formats.en.rst:206
+#: ../../admin/event-logging-formats.en.rst:406
+msgid "``pfsc``"
+msgstr "``pfsc``"
+
+#: ../../admin/event-logging-formats.en.rst:204
+msgid ""
+"The proxy finish status code; specifies whether the Traffic Server request "
+"to the origin server was successfully completed (``FIN``), interrupted "
+"(``INTR``) or timed out (``TIMEOUT``)."
+msgstr ""
+"プロキシー終了ステータスコード。Traffic Server からオリジンサーバーへのリク"
+"エストが正常に完了した (``FIN``) もしくは中断された (``INTR``) かタイムアウ"
+"トした (``TIMEOUT``) かどうか。"
+
+#: ../../admin/event-logging-formats.en.rst:210
+msgid "``phn``"
+msgstr "``phn``"
+
+#: ../../admin/event-logging-formats.en.rst:209
+msgid ""
+"The hostname of the Traffic Server that generated the log entry in collated "
+"log files."
+msgstr ""
+"ログファイルに収集されるログエントリーを生成した Traffic Server のホスト名。"
+
+#: ../../admin/event-logging-formats.en.rst:214
+msgid "``phi``"
+msgstr "``phi``"
+
+#: ../../admin/event-logging-formats.en.rst:213
+msgid ""
+"The IP of the Traffic Server that generated the log entry in collated log "
+"files."
+msgstr ""
+"ログファイルに収集されるログエントリーを生成した Traffic Server の IP。"
+
+#: ../../admin/event-logging-formats.en.rst:218
+#: ../../admin/event-logging-formats.en.rst:404
+msgid "``phr``"
+msgstr "``phr``"
+
+#: ../../admin/event-logging-formats.en.rst:217
+msgid ""
+"The proxy hierarchy route; the route Traffic Server used to retrieve the "
+"object."
+msgstr ""
+"プロキシー階層の経路。Traffic Server がオプジェクトを検索するために使用した"
+"経路。"
+
+#: ../../admin/event-logging-formats.en.rst:222
+#: ../../admin/event-logging-formats.en.rst:372
+#: ../../admin/event-logging-formats.en.rst:398
+msgid "``pqbl``"
+msgstr "``pqbl``"
+
+#: ../../admin/event-logging-formats.en.rst:221
+msgid ""
+"The proxy request transfer length; the body length in Traffic Server's "
+"request to the origin server."
+msgstr ""
+"プロキシーリクエスト転送長。Traffic Server からオリジンサーバーへのリクエス"
+"トのボディの長さ。"
+
+#: ../../admin/event-logging-formats.en.rst:226
+#: ../../admin/event-logging-formats.en.rst:375
+#: ../../admin/event-logging-formats.en.rst:401
+msgid "``pqhl``"
+msgstr "``pqhl``"
+
+#: ../../admin/event-logging-formats.en.rst:225
+msgid ""
+"The proxy request header length; the header length in Traffic Server's "
+"request to the origin server."
+msgstr ""
+"プロキシーリクエストヘッダーの長さ。Traffic Server からオリジンサーバーへの"
+"リクエストのヘッダーの長さ。"
+
+#: ../../admin/event-logging-formats.en.rst:230
+msgid "``pqsi``"
+msgstr "``pqsi``"
+
+#: ../../admin/event-logging-formats.en.rst:229
+msgid ""
+"The proxy request server IP address (0 on cache hits and parent-ip for "
+"requests to parent proxies)."
+msgstr ""
+"プロキシーリクエストサーバー IP アドレス。( キャッシュヒットした場合と親プロ"
+"キシーへのリクエストのペアレント IP は 0 )"
+
+#: ../../admin/event-logging-formats.en.rst:234
+msgid "``pqsn``"
+msgstr "``pqsn``"
+
+#: ../../admin/event-logging-formats.en.rst:233
+msgid ""
+"The proxy request server name; the name of the server that fulfilled the "
+"request."
+msgstr "プロキシーリクエストサーバー名。リクエストを満たしたサーバーの名前。"
+
+#: ../../admin/event-logging-formats.en.rst:237
+#: ../../admin/event-logging-formats.en.rst:351
+#: ../../admin/event-logging-formats.en.rst:368
+#: ../../admin/event-logging-formats.en.rst:394
+msgid "``pscl``"
+msgstr "``pscl``"
+
+#: ../../admin/event-logging-formats.en.rst:237
+msgid "The length of the Traffic Server response to the client (in bytes)."
+msgstr "Traffic Server からクライアントへのレスポンスの長さ。( byte 単位 )"
+
+#: ../../admin/event-logging-formats.en.rst:241
+#: ../../admin/event-logging-formats.en.rst:334
+msgid "``psct``"
+msgstr "``psct``"
+
+#: ../../admin/event-logging-formats.en.rst:240
+msgid ""
+"The content type of the document from server response header: (for example, "
+"``img/gif`` )."
+msgstr ""
+"サーバーレスポンスヘッダーのドキュメントのコンテンツタイプ。( 例えば ``img/"
+"gif`` )"
+
+#: ../../admin/event-logging-formats.en.rst:244
+#: ../../admin/event-logging-formats.en.rst:374
+#: ../../admin/event-logging-formats.en.rst:400
+msgid "``pshl``"
+msgstr "``pshl``"
+
+#: ../../admin/event-logging-formats.en.rst:244
+msgid "The header length in Traffic Server's response to the client."
+msgstr "Traffic Server からクライアントへのレスポンスのヘッダーの長さ。"
+
+#: ../../admin/event-logging-formats.en.rst:248
+#: ../../admin/event-logging-formats.en.rst:329
+msgid "``psql``"
+msgstr "``psql``"
+
+#: ../../admin/event-logging-formats.en.rst:247
+msgid ""
+"The proxy response transfer length in Squid format (includes header and "
+"content length)."
+msgstr ""
+"Squid フォーマットでのプロキシーレスポンス転送長。( ヘッダーとコンテンツの長"
+"さを含む )"
+
+#: ../../admin/event-logging-formats.en.rst:251
+#: ../../admin/event-logging-formats.en.rst:350
+#: ../../admin/event-logging-formats.en.rst:367
+#: ../../admin/event-logging-formats.en.rst:393
+msgid "``pssc``"
+msgstr "``pssc``"
+
+#: ../../admin/event-logging-formats.en.rst:251
+msgid "The HTTP response status code from Traffic Server to the client."
+msgstr "Traffic Server からクライアントへの HTTP レスポンスステータスコード。"
+
+#: ../../admin/event-logging-formats.en.rst:262
+msgid "``shi``"
+msgstr "``shi``"
+
+#: ../../admin/event-logging-formats.en.rst:254
+msgid ""
+"The IP address resolved from the DNS name lookup of the host in the "
+"request. For hosts with multiple IP addresses, this field records the IP "
+"address resolved from that particular DNS lookup."
+msgstr ""
+"リクエスト内のホストの DNS 名からルックアップして解決された IP アドレス。複"
+"数の IP アドレスを持つホストの場合、このフィールドは特定の DNS ルックアップ"
+"により解決された IP アドレスを記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:258
+msgid ""
+"This can be misleading for cached documents. For example: if the first "
+"request was a cache miss and came from **``IP1``** for server **``S``** and "
+"the second request for server **``S``** resolved to **``IP2``** but came "
+"from the cache, then the log entry for the second request will show "
+"**``IP2``**."
+msgstr ""
+"これはキャッシュされたドキュメントで誤解を与えるかもしれません。例えば、最初"
+"のリクエストがキャッシュミスでサーバー **``S``** へ **``IP1``** が来て、次の"
+"サーバー **``S``** へのリクエストが **``IP2``** に解決され、キャッシュから来"
+"た場合、2 番目のリクエストのログエントリーは **``IP2``** と記録します。"
+
+#: ../../admin/event-logging-formats.en.rst:265
+msgid "``shn``"
+msgstr "``shn``"
+
+#: ../../admin/event-logging-formats.en.rst:265
+msgid "The hostname of the origin server."
+msgstr "オリジンサーバーのホスト名。"
+
+#: ../../admin/event-logging-formats.en.rst:268
+#: ../../admin/event-logging-formats.en.rst:370
+#: ../../admin/event-logging-formats.en.rst:396
+msgid "``sscl``"
+msgstr "``sscl``"
+
+#: ../../admin/event-logging-formats.en.rst:268
+msgid "The response length (in bytes) from origin server to Traffic Server."
+msgstr ""
+"オリジンサーバーから Traffic Server へのレスポンスの長さ。( byte 単位 )"
+
+#: ../../admin/event-logging-formats.en.rst:272
+#: ../../admin/event-logging-formats.en.rst:376
+#: ../../admin/event-logging-formats.en.rst:402
+msgid "``sshl``"
+msgstr "``sshl``"
+
+#: ../../admin/event-logging-formats.en.rst:271
+msgid ""
+"The header length in the origin server response to Traffic Server (in "
+"bytes)."
+msgstr ""
+"オリジンサーバーが Traffic Server へ返すヘッダーの長さ。 ( byte 単位 )"
+
+#: ../../admin/event-logging-formats.en.rst:275
+msgid "``sshv``"
+msgstr "``sshv``"
+
+#: ../../admin/event-logging-formats.en.rst:275
+msgid "The server response HTTP version (1.0, 1.1, etc.)."
+msgstr "サーバーレスポンス HTTP バージョン。( 1.0、1.1 等 )"
+
+#: ../../admin/event-logging-formats.en.rst:278
+#: ../../admin/event-logging-formats.en.rst:369
+#: ../../admin/event-logging-formats.en.rst:395
+msgid "``sssc``"
+msgstr "``sssc``"
+
+#: ../../admin/event-logging-formats.en.rst:278
+msgid "The HTTP response status code from origin server to Traffic Server."
+msgstr ""
+"オリジンサーバーから Traffic Server への HTTP レスポンスステータスコード。"
+
+#: ../../admin/event-logging-formats.en.rst:284
+#: ../../admin/event-logging-formats.en.rst:326
+msgid "``ttms``"
+msgstr "``ttms``"
+
+#: ../../admin/event-logging-formats.en.rst:281
+msgid ""
+"The time Traffic Server spends processing the client request; the number of "
+"milliseconds between the time the client establishes the connection with "
+"Traffic Server and the time Traffic Server sends the last byte of the "
+"response back to the client."
+msgstr ""
+"Traffic Server がクライアントリクエストを処理するのに費やした時間。クライア"
+"ントが Traffic Server とコネクションを確立した時間から Traffic Server がクラ"
+"イアントにレスポンスブロックの最後のバイトを送り返した時間までのミリ秒の数。"
+
+#: ../../admin/event-logging-formats.en.rst:287
+msgid "``ttmsh``"
+msgstr "``ttmsh``"
+
+#: ../../admin/event-logging-formats.en.rst:287
+msgid "Same as ``ttms`` but in hexadecimal."
+msgstr "``ttms`` と同様だが 16 進法表記。"
+
+#: ../../admin/event-logging-formats.en.rst:298
+msgid "``ttmsf``"
+msgstr "``ttmsf``"
+
+#: ../../admin/event-logging-formats.en.rst:290
+msgid ""
+"The time Traffic Server spends processing the client request as a "
+"fractional number of seconds. Time is specified in millisecond resolution; "
+"however, instead of formatting the output as an integer (as with ``ttms``), "
+"the display is formatted as a floating-point number representing a "
+"fractional number of seconds."
+msgstr ""
+"少数秒での Traffic Server がクライアントリクエストを処理するのに費やした時"
+"間。時間はミリ秒の精度で記述されます。しかし ( ``ttms`` のように ) 整数とし"
+"てフォーマットして出力する代わりに、秒単位の少数精度の浮動小数点数でフォー"
+"マットして表示します。"
+
+#: ../../admin/event-logging-formats.en.rst:296
+msgid ""
+"For example: if the time is 1500 milliseconds, then this field displays 1.5 "
+"while the ``ttms`` field displays 1500 and the ``tts`` field displays 1."
+msgstr ""
+"例: 時間が 1500 ミリ秒の場合、このフィールドは 1.5 と表示します。一方 "
+"``ttms`` フィールドは 1500 、 ``tts`` は 1 と表示します。"
+
+#: ../../admin/event-logging-formats.en.rst:305
+#: ../../admin/event-logging-formats.en.rst:377
+#: ../../admin/event-logging-formats.en.rst:403
+msgid "``tts``"
+msgstr "``tts``"
+
+#: ../../admin/event-logging-formats.en.rst:301
+msgid ""
+"The time Traffic Server spends processing the client request; the number of "
+"seconds between the time at which the client establishes the connection "
+"with Traffic Server and the time at which Traffic Server sends the last "
+"byte of the response back to the client."
+msgstr ""
+"Traffic Server がクライアントリクエストを処理するのに費やした時間。クライア"
+"ントが Traffic Server とコネクションを確立した時間から、Traffic Server がク"
+"ライアントにレスポンスの最後の byte を返した時間の間の秒数。"
+
+#: ../../admin/event-logging-formats.en.rst:310
+msgid "Logging Format Cross-Reference"
+msgstr "ログフォーマットクロスリファレンス"
+
+#: ../../admin/event-logging-formats.en.rst:312
+msgid ""
+"The following sections illustrate the correspondence between Traffic Server "
+"logging fields and standard logging fields for the Squid and Netscape "
+"formats."
+msgstr ""
+"次の章では Traffic Server のロギングフィールドと Squid と Netdcape フォー"
+"マットの標準ロギングフィールドの対応を解説します。"
+
+#: ../../admin/event-logging-formats.en.rst:317
+msgid "Squid Logging Formats"
+msgstr "Squid ロギングフォーマット"
+
+#: ../../admin/event-logging-formats.en.rst:319
+msgid ""
+"The following is a list of the Squid logging fields and the corresponding "
+"logging field symbols."
+msgstr ""
+"下記は Squid ロギングフィールドと対応するロギングフィールド記号の表です。"
+
+#: ../../admin/event-logging-formats.en.rst:323
+msgid "Squid"
+msgstr "Squid"
+
+#: ../../admin/event-logging-formats.en.rst:323
+#: ../../admin/event-logging-formats.en.rst:344
+#: ../../admin/event-logging-formats.en.rst:361
+#: ../../admin/event-logging-formats.en.rst:387
+msgid "Field Symbols"
+msgstr "フィールド記号"
+
+#: ../../admin/event-logging-formats.en.rst:325
+msgid "``time``"
+msgstr "``time``"
+
+#: ../../admin/event-logging-formats.en.rst:326
+msgid "``elapsed``"
+msgstr "``elapsed``"
+
+#: ../../admin/event-logging-formats.en.rst:327
+msgid "``client``"
+msgstr "``client``"
+
+#: ../../admin/event-logging-formats.en.rst:328
+msgid "``action/code``"
+msgstr "``action/code``"
+
+#: ../../admin/event-logging-formats.en.rst:328
+msgid "``crc/pssc``"
+msgstr "``crc/pssc``"
+
+#: ../../admin/event-logging-formats.en.rst:329
+msgid "``size``"
+msgstr "``size``"
+
+#: ../../admin/event-logging-formats.en.rst:330
+msgid "``method``"
+msgstr "``method``"
+
+#: ../../admin/event-logging-formats.en.rst:331
+msgid "``url``"
+msgstr "``url``"
+
+#: ../../admin/event-logging-formats.en.rst:332
+msgid "``ident``"
+msgstr "``ident``"
+
+#: ../../admin/event-logging-formats.en.rst:333
+msgid "``hierarchy/from``"
+msgstr "``hierarchy/from``"
+
+#: ../../admin/event-logging-formats.en.rst:333
+msgid "``phr/pqsn``"
+msgstr "``phr/pqsn``"
+
+#: ../../admin/event-logging-formats.en.rst:334
+msgid "``content``"
+msgstr "``content``"
+
+#: ../../admin/event-logging-formats.en.rst:338
+msgid "Netscape Common Logging Formats"
+msgstr "Netscape Common ロギングフォーマット"
+
+#: ../../admin/event-logging-formats.en.rst:340
+msgid ""
+"The following is a list of the Netscape Common logging fields and the "
+"corresponding Traffic Server logging field symbols."
+msgstr ""
+"下記は Netscape Common ロギングフィールドと対応する Traffic Server ロギング"
+"フィールド記号の表です。"
+
+#: ../../admin/event-logging-formats.en.rst:344
+msgid "Netscape Common"
+msgstr "Netscape Common"
+
+#: ../../admin/event-logging-formats.en.rst:346
+#: ../../admin/event-logging-formats.en.rst:363
+#: ../../admin/event-logging-formats.en.rst:389
+msgid "``host``"
+msgstr "``host``"
+
+#: ../../admin/event-logging-formats.en.rst:347
+#: ../../admin/event-logging-formats.en.rst:364
+#: ../../admin/event-logging-formats.en.rst:390
+msgid "``usr``"
+msgstr "``usr``"
+
+#: ../../admin/event-logging-formats.en.rst:348
+#: ../../admin/event-logging-formats.en.rst:365
+#: ../../admin/event-logging-formats.en.rst:391
+msgid "``[time]``"
+msgstr "``[time]``"
+
+#: ../../admin/event-logging-formats.en.rst:348
+#: ../../admin/event-logging-formats.en.rst:365
+#: ../../admin/event-logging-formats.en.rst:391
+msgid "``[cqtn]``"
+msgstr "``[cqtn]``"
+
+#: ../../admin/event-logging-formats.en.rst:349
+#: ../../admin/event-logging-formats.en.rst:366
+#: ../../admin/event-logging-formats.en.rst:392
+msgid "``\"req\"``"
+msgstr "``\"req\"``"
+
+#: ../../admin/event-logging-formats.en.rst:349
+#: ../../admin/event-logging-formats.en.rst:366
+#: ../../admin/event-logging-formats.en.rst:392
+msgid "``\"cqtx\"``"
+msgstr "``\"cqtx\"``"
+
+#: ../../admin/event-logging-formats.en.rst:350
+#: ../../admin/event-logging-formats.en.rst:367
+#: ../../admin/event-logging-formats.en.rst:393
+msgid "``s1``"
+msgstr "``s1``"
+
+#: ../../admin/event-logging-formats.en.rst:351
+#: ../../admin/event-logging-formats.en.rst:368
+#: ../../admin/event-logging-formats.en.rst:394
+msgid "``c1``"
+msgstr "``c1``"
+
+#: ../../admin/event-logging-formats.en.rst:355
+msgid "Netscape Extended Logging Formats"
+msgstr "Netscape Extended ロギングフォーマット"
+
+#: ../../admin/event-logging-formats.en.rst:357
+msgid ""
+"The following table lists the Netscape Extended logging fields and the "
+"corresponding Traffic Server logging field symbols."
+msgstr ""
+"下記は Netscape Extended ロギングフォーマットフィールドと対応する Traffic "
+"Server ロギングフィールド記号の表です。"
+
+#: ../../admin/event-logging-formats.en.rst:361
+msgid "Netscape Extended"
+msgstr "Netscape Extended"
+
+#: ../../admin/event-logging-formats.en.rst:369
+#: ../../admin/event-logging-formats.en.rst:395
+msgid "``s2``"
+msgstr "``s2``"
+
+#: ../../admin/event-logging-formats.en.rst:370
+#: ../../admin/event-logging-formats.en.rst:396
+msgid "``c2``"
+msgstr "``c2``"
+
+#: ../../admin/event-logging-formats.en.rst:371
+#: ../../admin/event-logging-formats.en.rst:397
+msgid "``b1``"
+msgstr "``b1``"
+
+#: ../../admin/event-logging-formats.en.rst:372
+#: ../../admin/event-logging-formats.en.rst:398
+msgid "``b2``"
+msgstr "``b2``"
+
+#: ../../admin/event-logging-formats.en.rst:373
+#: ../../admin/event-logging-formats.en.rst:399
+msgid "``h1``"
+msgstr "``h1``"
+
+#: ../../admin/event-logging-formats.en.rst:374
+#: ../../admin/event-logging-formats.en.rst:400
+msgid "``h2``"
+msgstr "``h2``"
+
+#: ../../admin/event-logging-formats.en.rst:375
+#: ../../admin/event-logging-formats.en.rst:401
+msgid "``h3``"
+msgstr "``h3``"
+
+#: ../../admin/event-logging-formats.en.rst:376
+#: ../../admin/event-logging-formats.en.rst:402
+msgid "``h4``"
+msgstr "``h4``"
+
+#: ../../admin/event-logging-formats.en.rst:377
+#: ../../admin/event-logging-formats.en.rst:403
+msgid "``xt``"
+msgstr "``xt``"
+
+#: ../../admin/event-logging-formats.en.rst:381
+msgid "Netscape Extended-2 Logging Formats"
+msgstr "Netscape Extended-2 ロギングフォーマット"
+
+#: ../../admin/event-logging-formats.en.rst:383
+msgid ""
+"The following is a list of the Netscape Extended-2 logging fields and the "
+"corresponding Traffic Server logging field symbols."
+msgstr ""
+"下記は Netscape Extended-2 ロギングフィールドと対応する Traffic Server ロギ"
+"ングフィールド記号の表です。"
+
+#: ../../admin/event-logging-formats.en.rst:387
+msgid "Netscape Extended-2"
+msgstr "Netscape Extended-2"
+
+#: ../../admin/event-logging-formats.en.rst:404
+msgid "``route``"
+msgstr "``route``"
+
+#: ../../admin/event-logging-formats.en.rst:405
+msgid "``pfs``"
+msgstr "``pfs``"
+
+#: ../../admin/event-logging-formats.en.rst:406
+msgid "``ss``"
+msgstr "``ss``"
+
+#: ../../admin/event-logging-formats.en.rst:76
+msgid "``chp``"
+msgstr "``chp``"
+
+#: ../../admin/event-logging-formats.en.rst:76
+msgid "The port number of the client's host machine."
+msgstr "クライアントのホストマシンのポート番号。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/explicit-proxy-caching.en.po b/doc/locale/ja/LC_MESSAGES/admin/explicit-proxy-caching.en.po
new file mode 100644
index 00000000..5c02c632
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/explicit-proxy-caching.en.po
@@ -0,0 +1,123 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/explicit-proxy-caching.en.rst:4
+msgid "Explicit Proxy Caching"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:26
+msgid ""
+"If you want to use Traffic Server as an explicit proxy cache, you must "
+"configure client software (i.e., browsers) to send requests directly to "
+"Traffic Server."
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:30
+msgid ""
+"If you do not configure Traffic Server to use the transparency option (with "
+"which client requests are intercepted en route to origin servers by a "
+"switch/router and rerouted to the Traffic Server machine), then clients "
+"must configure their web browsers to send HTTP requests to the Traffic "
+"Server proxy cache by configuring their browsers to download proxy "
+"configuration instructions from a :ref:`PAC file <using-a-pack-file>` "
+"(Proxy Auto-Configuration file)."
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:39
+msgid "Configuring Browsers Manually"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:41
+msgid ""
+"To manually configure a browser to send HTTP requests to Traffic Server, "
+"clients must provide the following information:"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:44
+msgid "The fully-qualified hostname or IP address of the Traffic Server node"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:45
+msgid "The Traffic Server proxy server port (port 8080)"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:47
+msgid ""
+"In addition, clients can specify *not* to use Traffic Server for certain "
+"sites - in such cases, requests to the listed sites go directly to the "
+"origin server. The procedures for manual configuration vary among browser "
+"versions; refer to specific browser documentation for complete proxy "
+"configuration instructions. You do not need to set any special "
+"configuration options on Traffic Server if you want to accept requests from "
+"manually-configured browsers."
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:58
+msgid "Using a PAC File"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:60
+msgid ""
+"A **PAC file** is a specialized JavaScript function definition that a "
+"browser calls to determine how requests are handled. Clients must specify "
+"(in their browser settings) the URL from which the PAC file is loaded. You "
+"can store a PAC file on Traffic Server (or on any server in your network) "
+"and then provide the URL for this file to your clients."
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:66
+msgid ""
+"If you want to store a PAC file on the Traffic Server system, then you must "
+"perform the following configuration:"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:69
+msgid ""
+"Either copy an existing PAC file into the Traffic Server ``config`` "
+"directory or enter a script that defines the proxy server configuration "
+"settings in the ``proxy.pac`` file provided. The file is empty by default. "
+"A sample script is provided in `Sample PAC File`_."
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:74
+msgid ""
+"Specify the port Traffic Server uses to serve the PAC file. The default "
+"port is 8083, see :ts:cv:`proxy.config.admin.autoconf_port`."
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:78
+msgid "Sample PAC File"
+msgstr ""
+
+#: ../../admin/explicit-proxy-caching.en.rst:80
+msgid ""
+"The following sample PAC file instructs browsers to connect directly to all "
+"hosts without a fully-qualified domain name and to all hosts in the local "
+"domain. All other requests go to the Traffic Server named ``myproxy.company."
+"com``.::"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/admin/faqs.en.po b/doc/locale/ja/LC_MESSAGES/admin/faqs.en.po
new file mode 100644
index 00000000..6e87455e
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/faqs.en.po
@@ -0,0 +1,760 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/faqs.en.rst:4
+msgid "FAQ and Troubleshooting Tips"
+msgstr "FAQ と トラブルシューティングの秘訣"
+
+#: ../../admin/faqs.en.rst:27
+msgid "FAQs"
+msgstr "FAQ"
+
+#: ../../admin/faqs.en.rst:30
+msgid ""
+"How do you create a raw disk for the cache if all your disks have mounted "
+"file systems?"
+msgstr ""
+"全ディスクがファイルシステムにマウントされている場合、キャッシュ用の raw "
+"ディスクの作成はどうすればいいですか？"
+
+#: ../../admin/faqs.en.rst:37
+msgid ""
+"How do disk I/O errors affect the cache and what does Traffic Server do "
+"when a cache disk fails?"
+msgstr ""
+"ディスク I/O エラーはキャッシュにどのように影響し、キャッシュディスクが動か"
+"なくなったとき Traffic Server は何を行いますか？"
+
+#: ../../admin/faqs.en.rst:39
+msgid ""
+"If a disk drive fails five successive I/O operations, then Traffic Server "
+"considers the drive inaccessible and removes the entire disk from the "
+"cache. Normal cache operations continue for all other Traffic Server disk "
+"drives."
+msgstr ""
+"ディスクドライブが I/O 操作に連続して五回失敗すると、Traffic Server はドライ"
+"ブがアクセス不能とみなしキャッシュからディスク全体を外します。通常のキャッ"
+"シュ操作は Traffic Server の他のすべてのディスクドライブで継続します。"
+
+#: ../../admin/faqs.en.rst:45
+msgid ""
+"If a client disconnects during the time that Traffic Server is downloading "
+"a large object, is any of the object saved in the cache?"
+msgstr ""
+"Traffic Server が大きいオブジェクトをダウンロード中にクライアントが接続を閉"
+"じた場合、オブジェクトはキャッシュに保存されますか？"
+
+#: ../../admin/faqs.en.rst:47
+msgid ""
+"When a client disconnects during an HTTP operation, Traffic Server "
+"continues to download the object from the origin server for up to 10 "
+"seconds. If the transfer from the origin server completes successfully "
+"within 10 seconds after the client disconnect, then Traffic Server stores "
+"the object in cache. If the origin server download does *not* complete "
+"successfully within 10 seconds, then Traffic Server disconnects from the "
+"origin server and deletes the object from cache. Traffic Server does not "
+"store partial documents in the cache."
+msgstr ""
+"HTTP の処理中にクライアントが接続を閉じたとき、Traffic Server は 10 秒までオ"
+"リジンサーバーからのオブジェクトのダウンロードを継続します。クライアントが接"
+"続を閉じた後、オリジンサーバーからの転送が 10 秒以内に正常に完了した場合、"
+"Traffic Server はオブジェクトをキャッシュに保存します。オリジンサーバーから"
+"のダウンロードが 10 秒以内に正常に完了しない場合、Traffic Server はオリジン"
+"サーバーとの接続を閉じ、キャッシュからオブジェクトを削除します。Traffic "
+"Server は部分的なオブジェクトをキャッシュに保存しません。"
+
+#: ../../admin/faqs.en.rst:57
+msgid ""
+"Can Traffic Server cache Java applets, JavaScript programs, or other "
+"application files like VBScript?"
+msgstr ""
+"Traffic Server は Java アプレット、JavaScript のブログラムもしくは VBScript "
+"の様なその他のアプリケーションファイルをキャッシュできますか？"
+
+#: ../../admin/faqs.en.rst:59
+msgid ""
+"Yes, Traffic Server can store and serve Java applets, JavaScript programs, "
+"VBScripts, and other executable objects from its cache according to the "
+"freshness and cacheability rules for HTTP objects. Traffic Server does not "
+"execute the applets, scripts, or programs, however - these objects run only "
+"when the client system (ie, the one that sent the request) loads them."
+msgstr ""
+"はい、Traffic Server は Java アプレット、JavaScript プログラム、VBScript、そ"
+"の他実行可能なオブジェクトを保存し、HTTP オブジェクトの新鮮さとキャッシュ"
+"ルールにもとづいて配信することができます。Traffic Server はアプレット、スク"
+"リプト、プログラムを実行せず、クライアントはこれらシステムに読み込んだときに"
+"のみ実行されます。"
+
+#: ../../admin/faqs.en.rst:67
+msgid ""
+"In Squid- and Netscape-format log files, what do the cache result codes "
+"mean?"
+msgstr ""
+"Squid や Netscape フォーマットのログファイルで、キャッシュ結果コードは何を意"
+"味していますか？"
+
+#: ../../admin/faqs.en.rst:69
+msgid ""
+"This is described in detail in the :ref:`log-formats-squid-format` "
+"documentation."
+msgstr ""
+"これについては :ref:`log-formats-squid-format` に詳細に説明されています。"
+
+#: ../../admin/faqs.en.rst:72
+msgid "What is recorded by the ``cqtx`` field in a custom log file?"
+msgstr ""
+"カスタムログファイル内の ``cqtx`` フィールドには何が記録されていますか？"
+
+#: ../../admin/faqs.en.rst:74
+msgid ""
+"In **forward proxy mode**, the cqtx field records the complete client "
+"request in the log file (for example, ``GET http://www.company.com "
+"HTTP/1.0``)."
+msgstr ""
+"**フォワードプロキシーモード** では、cqtx フィールドはクライアントの完全なリ"
+"クエストを記録しています (例えば、``GET http://www.company.com HTTP/1.0`` な"
+"ど) 。"
+
+#: ../../admin/faqs.en.rst:76
+msgid ""
+"In **reverse proxy mode**, the cqtx field records the hostname or IP "
+"address of the origin server because Traffic Server first remaps the "
+"request as per map rules in the :file:`remap.config` file."
+msgstr ""
+"**リバースプロキシーモード** では、Traffic Server はまずリクエストを :file:"
+"`remap.config` ファイル内のマップルールごとにリマップを行うので、cqtx フィー"
+"ルドはオリジンサーバーのホスト名もしくは IP アドレスを記録しています。"
+
+#: ../../admin/faqs.en.rst:81
+msgid ""
+"Does Traffic Server refresh entries in its host database after a certain "
+"period of time if they have not been used?"
+msgstr ""
+"Traffic Server はホストデータベース内のエントリーが一定期間使われなかった場"
+"合にそれらを更新しますか？"
+
+#: ../../admin/faqs.en.rst:83
+msgid ""
+"By default, the Traffic Server host database observes the time-to-live "
+"(``ttl``) values set by name servers. You can reconfigure Traffic Server to "
+"ignore the ``ttl`` set by name servers and use a specific Traffic Server "
+"setting instead. Alternatively, you can configure Traffic Server to compare "
+"the ``ttl`` value set by the name server with the ``ttl`` value set by "
+"Traffic Server, and then use either the lower or the higher value."
+msgstr ""
+"デフォルトでは、Traffic Server のホストデータベースはネームサーバーにより"
+"セットされた time-to-live (``ttl``) を監視します。ネームサーバーによってセッ"
+"トされた ``ttl`` を無視して指定した設定を使用するように Traffic Server を再"
+"設定することも可能です。もしくは、ネームサーバーによってセットされた "
+"``ttl`` の値と Traffic Server の設定値を比較し、低いものか高いものかどちらか"
+"を使用するように Traffic Serverを設定することも可能です。"
+
+#: ../../admin/faqs.en.rst:91
+msgid "see :ts:cv:`proxy.config.hostdb.ttl_mode` for more info"
+msgstr "詳しくは :ts:cv:`proxy.config.hostdb.ttl_mode` を観てください。"
+
+#: ../../admin/faqs.en.rst:94
+msgid ""
+"Can you improve the look of your custom response pages by using images, "
+"animated .gifs, and Java applets?"
+msgstr ""
+"カスタムレスポンスメッセージの見た目を画像やアニメーション GIF や Java アプ"
+"レットを使用して改善することはできますか？"
+
+#: ../../admin/faqs.en.rst:96
+msgid ""
+"No, because Traffic Server can only respond to clients with a single text "
+"or HTML document. As a workaround, however, you can provide references on "
+"your custom response pages to images, animated .gifs, Java applets, or "
+"objects other than text which are located on a web server. Add links in the "
+"body_factory template files in the same way you would for any image in an "
+"HTML document (i.e., with the full URL in the ``SRC`` attribute)."
+msgstr ""
+"いいえ、Traffic Server はクライアントに一つのテキストもしくは HTML ドキュメ"
+"ントしか返せません。次善策ではありますが、カスタマイズレスポンスページで "
+"Web サーバー上にある画像、アニメーション GIF 、Java アプレット、その他テキス"
+"トではないオブジェクトの参照を提供することは可能です。HTML ドキュメントに画"
+"像を追加するのと同じ方法で body_factory テンプレートファイルにリンクを追加し"
+"てください (例、\\ ``SRC`` 属性に完全な URL を指定するなど) 。"
+
+#: ../../admin/faqs.en.rst:105
+msgid ""
+"Can Traffic Server run in forward proxy and reverse proxy modes at the same "
+"time?"
+msgstr ""
+"Traffic Server はフォワードプロキシーモードとリバースプロキシーモードを同時"
+"に実行できますか？"
+
+#: ../../admin/faqs.en.rst:107
+msgid ""
+"Yes. When you enable reverse proxy mode, Traffic Server remaps incoming "
+"requests according to the map rules in the :file:`remap.config` file. All "
+"other requests that do not match a map rule are simply served in forward "
+"proxy mode."
+msgstr ""
+"はい。リバースプロキシーモードを有効にした場合、Traffic Server は入ってきた"
+"リクエストを :file:`remap.config` ファイル内のマップルールにもとづいて "
+"remap します。マップルールにマッチしないその他のすべてのリクエストはフォワー"
+"ドプロキシーモードで単純に処理されます。"
+
+#: ../../admin/faqs.en.rst:112
+msgid ""
+"If you want to run in reverse proxy only mode (wherein Traffic Server does "
+"*not* serve requests that fail to match a map rule), then you must set the "
+"configuration variable :ts:cv:`proxy.config.url_remap.remap_required` to "
+"``1`` in the :file:`records.config` file."
+msgstr ""
+"リバースプロキシーモードのみで実行したい場合 (Traffic Server はマップルール"
+"にマッチしなかったリクエストに応え\\ *ません*\\ ) は、:file:`records."
+"config` ファイル内の設定変数 :ts:cv:`proxy.config.url_remap.remap_required` "
+"を ``1`` にセットしなければなりません。"
+
+#: ../../admin/faqs.en.rst:118
+msgid "How do I enable forward proxy mode"
+msgstr "どうやってフォワードプロキシーモードを有効するのですか？"
+
+#: ../../admin/faqs.en.rst:120
+msgid "Please refer to the :ref:`forward-proxy` documentation."
+msgstr ":ref:`forward-proxy` を参照してください。"
+
+#: ../../admin/faqs.en.rst:123
+msgid "How do I interpret the Via: header code?"
+msgstr "どうやって Via: ヘッダーコードを解釈するのですか？"
+
+#: ../../admin/faqs.en.rst:128
+msgid "Support for HTTP Expect: Header"
+msgstr "HTTP Expect: ヘッダーのサポート"
+
+#: ../../admin/faqs.en.rst:130
+msgid ""
+"Traffic Server currently does not handle request Expect: headers according "
+"to the HTTP/1.1 spec."
+msgstr ""
+"Traffic Server は現在 HTTP/1.1 仕様による Expect: ヘッダーを扱いません。"
+
+#: ../../admin/faqs.en.rst:133
+msgid ""
+"Note that clients such as cURL automatically send Expect: for POST requests "
+"with large POST bodies, with a 1 second timeout if a 100 Continue response "
+"is not received. To avoid the timeout when using cURL as a client to "
+"Traffic Server, you can turn off the Expect: header as follows::"
+msgstr ""
+"cURL などのクライアントは大きい POST ボディを持つ POST リクエストで、1 秒の"
+"タイムアウトで 100 Continue レスポンスを受け取らない場合に自動的に Expect: "
+"ヘッダーを送信することに注意してください。cURL を Traffic Server のクライア"
+"ントとして使用する際のタイムアウトを防ぐためには、次のように Expect: ヘッ"
+"ダーをオフにすることができます。"
+
+#: ../../admin/faqs.en.rst:141
+msgid "C (libcurl)::"
+msgstr "C (libcurl)::"
+
+#: ../../admin/faqs.en.rst:147
+msgid "php::"
+msgstr "php::"
+
+#: ../../admin/faqs.en.rst:152
+msgid "Troubleshooting Tips"
+msgstr "トラブルシューティングの秘訣"
+
+#: ../../admin/faqs.en.rst:155
+msgid "The throughput statistic is inaccurate"
+msgstr "スループットの統計が不正確"
+
+#: ../../admin/faqs.en.rst:157
+msgid ""
+"Traffic Server updates the throughput statistic after it has transferred an "
+"entire object. For larger files, the byte count increases sharply at the "
+"end of a transfer. The complete number of bytes transferred is attributed "
+"to the last 10-second interval, although it can take several minutes to "
+"transfer the object. This inaccuracy is more noticeable with a light load. "
+"A heavier load yields a more accurate statistic."
+msgstr ""
+"Traffic Server はスループットの統計をオブジェクト全体を転送した後で更新しま"
+"す。大きいファイルではバイト数が転送の終わりで鋭く上昇します。オブジェクトを"
+"転送するのに数分かかることもありますが完全な転送バイト数は直近の 10 秒間とな"
+"ります。この不正確さは負荷が軽い場合に顕著です。重い負荷はより正確な統計をも"
+"たらします。"
+
+#: ../../admin/faqs.en.rst:165
+msgid "You are unable to execute Traffic Line commands"
+msgstr "Traffic Line コマンドが実行できない"
+
+#: ../../admin/faqs.en.rst:167
+msgid "Traffic Line commands do not execute under the following conditions:"
+msgstr "Traffic Line コマンドは次の状況で動作しません。"
+
+#: ../../admin/faqs.en.rst:169
+msgid ""
+"**When the traffic_manager process is not running** Check to see if the :"
+"program:`traffic_manager` process is running by entering the following "
+"command: ``pgrep -l traffic_manager``"
+msgstr ""
+"**traffic_manager プロセスが実行されていない場合**\\ 次のコマンドを入力し"
+"て :program:`traffic_manager` プロセスが実行中であることを確認してください。"
+
+#: ../../admin/faqs.en.rst:173
+msgid ""
+"If the :program:`traffic_manager` process is not running, then enter the "
+"following command from the Traffic Server ``bin`` directory to start it: "
+"``./traffic_manager``"
+msgstr ""
+":program:`traffic_manager` プロセスが実行中ではない場合は、開始するために "
+"Traffic Server の ``bin`` ディレクトリで次のコマンドを入力してください。``./"
+"traffic_manager``"
+
+#: ../../admin/faqs.en.rst:179
+msgid ""
+"You should always start and stop Traffic Server with the :program:"
+"`trafficserver start`` and :program:`trafficserver stop` commands to ensure "
+"that all the processes start and stop correctly. For more information, "
+"refer to :ref:`getting-started`."
+msgstr ""
+"すべてのプロセスで正常に開始と終了が行われることを確実にするために、Traffic "
+"Server は :program:`trafficserver start` と :program:`trafficserver stop` コ"
+"マンドで開始と終了をすべきです。詳しくは :ref:`getting-started` を参照してく"
+"ださい。"
+
+#: ../../admin/faqs.en.rst:184
+msgid ""
+"**When you are not executing the command from $TSHome/bin** If the Traffic "
+"Server ``bin`` directory is not in your path, then prepend the Traffic Line "
+"commands with ``./`` (for example, ``./traffic_line -h``)."
+msgstr ""
+"**コマンドを $TSHome/bin で実行していない場合** Traffic Server の ``bin`` "
+"ディレクトリがパスに含まれていない場合、Traffic Line コマンドの前に ``./`` "
+"を追加してください (例えば、``./traffic_line -h``) 。"
+
+#: ../../admin/faqs.en.rst:188
+msgid ""
+"**When multiple Traffic Server installations are present and you are not "
+"executing the Traffic Line command from the active Traffic Server path "
+"specified in ``/etc/trafficserver``**"
+msgstr ""
+"**複数のインストール済み Traffic Server が存在し、``/etc/trafficserver`` で"
+"指定された Traffic Server のパスから Traffic Line コマンドが実行されていない"
+"場合。**"
+
+#: ../../admin/faqs.en.rst:194
+msgid ""
+"You observe inconsistent behavior when one node obtains an object from "
+"another node in the cluster"
+msgstr ""
+"クラスター内の他のノードからあるノードがオブジェクトを取得する際に矛盾した振"
+"る舞いを観測した"
+
+#: ../../admin/faqs.en.rst:196
+msgid ""
+"As part of the initial system preparation, you must synchronize the clocks "
+"on all nodes in your cluster. Minor time differences do not cause problems, "
+"but differences of more than a few minutes can affect Traffic Server "
+"operation."
+msgstr ""
+"最初のシステム準備の一環で、クラスター内のすべてのノードの時刻を同期しなけれ"
+"ば成りません。多少の違いは問題となりませんが、数分以上のずれは Traffic "
+"Server の動作に影響を与えます。"
+
+#: ../../admin/faqs.en.rst:201
+msgid ""
+"You should run a clock synchronization daemon such as xntpd. To obtain the "
+"latest version of xntpd, go to ``http://www.eecis.udel.edu/~ntp/``"
+msgstr ""
+"xntpd などの時刻同期デーモンを実行するべきです。xntpd の最新バージョンを取得"
+"するには ``http://www.eecis.udel.edu/~ntp/`` にアクセスしてください。"
+
+#: ../../admin/faqs.en.rst:205
+msgid "Web browsers display an error document with a 'data missing' message"
+msgstr ""
+"ウェブブラウザーが 'data missing' というメッセージのエラードキュメントを表示"
+"します"
+
+#: ../../admin/faqs.en.rst:207
+msgid "A message similar to the following might display in web browsers: ::"
+msgstr "次のようなメッセージがウェブブラウザーに表示されるかもしれません。"
+
+#: ../../admin/faqs.en.rst:221
+msgid "Traffic Server does not resolve any websites"
+msgstr "Traffic Server がどのウェブサイトも解決しません"
+
+#: ../../admin/faqs.en.rst:223
+msgid ""
+"The browser indicates that it is contacting the host and then times out "
+"with the following message: ::"
+msgstr ""
+"ブラウザーはホストへ接続しようとしてタイムアウトしたことを次のメッセージで示"
+"しています。"
+
+#: ../../admin/faqs.en.rst:228
+msgid ""
+"Make sure the system is configured correctly and that Traffic Server can "
+"read the name resolution file:"
+msgstr ""
+"システムが正しく設定されていることと Traffic Server が名前解決ファイルを読み"
+"込めるを確認してください。"
+
+#: ../../admin/faqs.en.rst:231
+msgid ""
+"Check if the server can resolve DNS lookups by issuing the nslookup command "
+"(for example, ``nslookup www.myhost.com``)."
+msgstr ""
+"nslookup コマンドでサーバーが DNS 問い合わせを解決できるか ( 例えば、"
+"``nslookup www.myhost.com``) 確認してください。"
+
+#: ../../admin/faqs.en.rst:233
+msgid ""
+"Check if the :manpage:`resolv.conf(5)` file contains valid IP addresses for "
+"your DNS servers."
+msgstr ""
+":manpage:`resolv.conf(5)` ファイルが DNS サーバーの妥当な IP アドレスを含ん"
+"でいるか確認してください。"
+
+#: ../../admin/faqs.en.rst:235
+msgid ""
+"On some systems, if the :manpage:`resolv.conf(5)` file is unreadable or has "
+"no name server entry, then the operating system uses ``localhost`` as a "
+"name server. Traffic Server, however, does not use this convention. If you "
+"want to use ``localhost`` as a name server, then you must add a name server "
+"entry for ``127.0.0.1`` or ``0.0.0.0`` in the :manpage:`resolv.conf(5)` "
+"file."
+msgstr ""
+"いくつかのシステムでは、:manpage:`resolv.conf(5)` ファイルが読み込めないか"
+"ネームサーバーの項目がない場合、オペレーティングシステムは ``localhost`` を"
+"ネームサーバーとして使用します。しかし Traffic Server はこの慣習を使用しませ"
+"ん。``localhost`` をネームサーバーとして使用したい場合は、''127.0.0.1`` もし"
+"くは ``0.0.0.0`` へのネームサーバーの項目を :manpage:`resolv.conf(5)` ファイ"
+"ルに追加しなければ成りません。"
+
+#: ../../admin/faqs.en.rst:241
+msgid ""
+"Check that the Traffic Server user account has permission to read the /etc/"
+"resolv.conf file. If it does not, then change the file permissions to ``rw-"
+"r--r--`` (``644``)"
+msgstr ""
+"Traffic Server のユーザーアカウントが /etc/resolv.conf ファイルを読み込む権"
+"限を持っていることを確認してください。もし権限がない場合はファイルのパーミッ"
+"ションを ``rw-r--r--`` (``644``) に変更してください。"
+
+#: ../../admin/faqs.en.rst:246
+msgid "'Maximum document size exceeded' message in the system log file"
+msgstr ""
+"システムログファイル内の 'Maximum document size exceeded' というメッセージ"
+
+#: ../../admin/faqs.en.rst:248
+msgid "The following message appears in the system log file: ::"
+msgstr "次のメッセージがシステムログファイルに現れます。"
+
+#: ../../admin/faqs.en.rst:252
+msgid ""
+"A requested object was larger than the maximum size allowed in the Traffic "
+"Server cache, so Traffic Server provided proxy service for the oversized "
+"object but did not cache it. To set the object size limit for the cache, "
+"modify the :ts:cv:`proxy.config.cache.max_doc_size` variable in "
+"the records.config file. If you do not want to limit the size of objects in "
+"the cache, then set the document size to ``0`` (zero)."
+msgstr ""
+"リクエストされたオブジェクトが Traffic Server のキャッシュで許された最大サイ"
+"ズより大きかったので、Traffic Server はその大きすぎるオブジェクトへのプロキ"
+"シーは提供しましたがキャッシュは行いませんでした。キャッシュのオブジェクトサ"
+"イズ制限を設定するには、records.config ファイルの :ts:cv:`proxy.config."
+"cache.limits.http.max_doc_size` 設定変数を変更してください。キャッシュ内のオ"
+"ブジェクトとのサイズを制限したくない場合は、ドキュメントサイズを ``0`` ( ゼ"
+"ロ ) に設定してください。"
+
+#: ../../admin/faqs.en.rst:261
+msgid "'DrainIncomingChannel' message in the system log file"
+msgstr "システムログファイル内の 'DrainIncomingChannel' というメッセージ"
+
+#: ../../admin/faqs.en.rst:263
+msgid "The following messages may appear in the system log file: ::"
+msgstr "次のメッセージがシステムログファイルに現れるかもしれません。"
+
+#: ../../admin/faqs.en.rst:269
+msgid ""
+"These error messages indicate that a browser is sending HTTP requests to "
+"one of the Traffic Server cluster ports - either ``rsport`` (default port "
+"8088) or ``mcport`` (default port 8089). Traffic Server discards the "
+"request; this error does not cause any Traffic Server problems. The "
+"misconfigured browser must be reconfigured to use the correct proxy port. "
+"Traffic Server clusters work best when configured to use a separate network "
+"interface and cluster on a private subnet, so that client machines have no "
+"access to the cluster ports."
+msgstr ""
+"これらのエラーメッセージはブラウザーが HTTP リクエストを Traffic Server のク"
+"ラスターポートに送信したことを示しています。これは ``rsport`` ( デフォルト"
+"ポートは 8088) もしくは ``mcport`` ( デフォルトポートは 8089) です。Traffic "
+"Server はこのリクエストを破棄します。このエラーは Traffic Server になんの問"
+"題ももたらしません。間違って設定されたブラウザーは正しいプロキシーポートを使"
+"用するために再設定されなければなりません。Traffic Server クラスターはクライ"
+"アントマシンがクラスターポートにアクセスできないよう別のネットワークインタ"
+"フェースを使用しプライベートサブネット上で使用するよう設定された場合によく動"
+"作します。"
+
+#: ../../admin/faqs.en.rst:279
+msgid "'No cop file' message in the system log file"
+msgstr "システムログファイル内の 'No cop file' というメッセージ"
+
+#: ../../admin/faqs.en.rst:281
+msgid "The following message appears repeatedly in the system log file: ::"
+msgstr "次のメッセージがシステムログファイルに繰り返し現れます。"
+
+#: ../../admin/faqs.en.rst:285
+msgid ""
+"The file ``var/trafficserver/no_cop`` acts as an administrative control "
+"that instructs the :program:`traffic_cop` process to exit immediately "
+"without starting :program:`traffic_manager` or performing any health "
+"checks. The ``no_cop`` file prevents Traffic Server from starting "
+"automatically when it has been stopped with the option:`trafficserver stop` "
+"command. Without this static control, Traffic Server would restart "
+"automatically upon system reboot. The ``no_cop`` control keeps Traffic "
+"Server off until it is explicitly restarted with the ::"
+msgstr ""
+"``var/trafficserver/no_cop`` は :program:`traffic_cop` が :program:"
+"`traffic_manager` を起動せずヘルスチェックを行わずに直ちに終了するように指示"
+"する管理制御として振る舞います。``no_cop`` ファイルは Traffic Server が "
+"option:`trafficserver stop` で停止されたときに自動的に開始するのを抑止しま"
+"す。この静的な制御を行わないと、Traffic Server はシステムリブートにより自動"
+"的に再開します。``no_cop`` 制御は"
+
+#: ../../admin/faqs.en.rst:296
+msgid "command."
+msgstr "コマンドで明示的に再開されるまで Traffic Server を停止し続けます。"
+
+#: ../../admin/faqs.en.rst:300
+msgid "Warning in the system log file when manually editing vaddrs.config"
+msgstr "vaddrs.config を手動で編集したときのシステムログファイルの警告"
+
+#: ../../admin/faqs.en.rst:302
+msgid ""
+"If you manually edit the vaddrs.config file as a non-root user, then "
+"Traffic Server issues a warning message in the system log file similar to "
+"the following::"
+msgstr ""
+"vaddrs.config ファイルを非 root ユーザーとして手動で編集すると、Traffic "
+"Server はシステムログファイルに次のような警告メッセージを発行します。"
+
+#: ../../admin/faqs.en.rst:308
+msgid ""
+"You can safely ignore this message; Traffic Server *does* apply your "
+"configuration edits."
+msgstr ""
+"このメッセージは安全に無視することができます。Traffic Server は設定ファイル"
+"の編集を適用\\ *します*\\ 。"
+
+#: ../../admin/faqs.en.rst:312
+msgid "Traffic Server is running but no log files are created"
+msgstr "Traffic Server は実行中だがログファイルが作られない"
+
+#: ../../admin/faqs.en.rst:314
+msgid ""
+"Traffic Server only writes event log files when there is information to "
+"record. If Traffic Server is idle, then it's possible/probable that no log "
+"files exist. In addition:"
+msgstr ""
+"Traffic Server は記録する情報があるときにだけイベントログファイルに書き込み"
+"ます。Traffic Server がアイドル状態の場合、ログファイルは存在しない可能性が"
+"あります。"
+
+#: ../../admin/faqs.en.rst:318
+msgid ""
+"Make sure you're looking in the correct directory. By default, Traffic "
+"Server creates log files in the logs directory. Check the location of log "
+"files by checking the value of the variable proxy.config.log.logfile_dir in "
+"the records.config file. Check that the log directory has read/write "
+"permissions for the Traffic Server user account. If the log directory does "
+"not have the correct permissions, then the traffic_server process is unable "
+"to open or create log files. Check that logging is enabled by checking the "
+"value of the proxy.config.log.logging_enabled variable in the records."
+"config file. Check that a log format is enabled. In the records.config "
+"file, select the standard or custom format by editing variables in the "
+"Logging Config section."
+msgstr ""
+"正しいディレクトリを見ていることを確認してください。デフォルトでは、Traffic "
+"Server はログファイルをログディレクトリに作成します。records.config の "
+"variable proxy.config.log.logfile_dir 変数の値を確認しログファイルの場所を確"
+"認してください。ログディレクトリに Traffic Server ユーザーアカウントに対する"
+"読み書きのパーミッションがあることを確認してください。ログディレクトリが正し"
+"いパーミッションを持っていない場合、traffic_server プロセスはログファイルを"
+"作成したり開いたりできません。records.config の proxy.config.log."
+"logging_enabled 変数の値を確認し、ロギングが有効化されていることを確認してく"
+"ださい。ログフォーマットが有効化されていることを確認してください。records."
+"config ファイルで、ロギング設定セクションの変数を編集して標準もしくはカスタ"
+"ムフォーマットを選択してください。"
+
+#: ../../admin/faqs.en.rst:332
+msgid "Traffic Server shows an error indicating too many network connections"
+msgstr "Traffic Server がネットワーク接続が多すぎることを示すエラーを表示する"
+
+#: ../../admin/faqs.en.rst:334
+msgid ""
+"By default, Traffic Server supports 8000 network connections: half of this "
+"number is allocated for client connections and the remaining half is for "
+"origin server connections. A **connection throttle event** occurs when "
+"client or origin server connections reach 90% of half the configured limit "
+"(3600 by default). When a connection throttle event occurs, Traffic Server "
+"continues processing all existing connections but will not accept new "
+"client connection requests until the connection count falls below the limit."
+msgstr ""
+"デフォルトでは、Traffic Server は 8000 のネットワーク接続に対応しています。"
+"このうちの半分がクライアントとの接続に割り当てられ、残りの半分はオリジンサー"
+"バーとの接続のためのものです。クライアントまたはオリジンサーバーの接続が設定"
+"された制限の半分の 90% ( デフォルトでは 3600) に達すると **connection "
+"throttle event** が発生します。connection throttle event が発生すると、"
+"Traffic Server はすべての既存の接続の処理を継続しますが、接続数が制限を下回"
+"るまで新規の接続要求を受け付けません。"
+
+#: ../../admin/faqs.en.rst:343
+msgid "Connection throttle events can occur under the following conditions:"
+msgstr "Connection throttle event は次の条件で発生します。"
+
+#: ../../admin/faqs.en.rst:345
+msgid ""
+"If there is a **connection spike** (e.g., if thousands of client requests "
+"all reach Traffic Server at the same time). Such events are typically "
+"transient and require no corrective action."
+msgstr ""
+"**接続のスパイク**\\ がある場合 ( 例えば、数千のクライアントのリクエストすべ"
+"てが Traffic Server に同時に届いたなど ) 。このようなイベントは一般的に一時"
+"的なもので修正の必要はありません。"
+
+#: ../../admin/faqs.en.rst:348
+msgid ""
+"If there is a **service overload** (e.g., if client requests continuously "
+"arrive faster than Traffic Server can service them). Service overloads "
+"often indicate network problems between Traffic Server and origin servers. "
+"Conversely, it may indicate that Traffic Server needs more memory, CPU, "
+"cache disks, or other resources to handle the client load."
+msgstr ""
+"**サービス過負荷**\\ がある場合 ( 例えば、クライアントのリクエストが "
+"Traffic Server が捌けるよりも早く継続的に届く場合) 。サービス過負荷は "
+"Traffic Server とオリジンサーバーとの間のネットワークの問題を示していること"
+"がよくあります。逆に言えば、Traffic Server はその負荷を扱うためにより多くの"
+"メモリー、CPU 、キャッシュディスク、その他のリソースを必要としていることを示"
+"しているかもしれません。"
+
+#: ../../admin/faqs.en.rst:355
+msgid ""
+"If necessary, you can reset the maximum number of connections supported by "
+"Traffic Server by editing the value of the :ref:`proxy.config.net."
+"connections_throttle` configuration variable in the records.config file. Do "
+"not increase the connection throttle limit unless the system has adequate "
+"memory to handle the client connections required. A system with limited RAM "
+"might need a throttle limit lower than the default value. Do not set this "
+"variable below the minimum value of 100."
+msgstr ""
+"必要であれば、records.config ファイルの :ref:`proxy.config.net."
+"connections_throttle` 設定変数を編集して Traffic Server がサポートする最大接"
+"続数を再設定することができます。システムがクライアントの接続を扱うのに必要と"
+"される十分なメモリーを持っていない限りは connection throttle 制限を増加しな"
+"いでください。限られた RAM を持つシステムはデフォルト値よりも低い throttle "
+"制限が必要かもしれません。この変数を最低値の 100 よりも低く設定しないでくだ"
+"さい。"
+
+#: ../../admin/faqs.en.rst:365
+msgid "Low memory symptoms"
+msgstr "メモリ不足の兆候"
+
+#: ../../admin/faqs.en.rst:367
+msgid ""
+"Under heavy load, the Linux kernel can run out of RAM. This low memory "
+"condition can cause slow performance and a variety of other system "
+"problems. In fact, RAM exhaustion can occur even if the system has plenty "
+"of free swap space."
+msgstr ""
+"高負荷な状態において、Linux カーネルは RAM を使い切る可能性があります。この"
+"メモリの少ない状態はパフォーマンスの低下とその他様々なシステムの問題を引き起"
+"こします。事実、RAM の枯渇 はシステムが豊富な空きスワップ領域を持っていたと"
+"しても発生し得ます。"
+
+#: ../../admin/faqs.en.rst:372
+msgid ""
+"Symptoms of extreme memory exhaustion include the following messages in the "
+"system log files (``/var/log/messages``)::"
+msgstr ""
+"極限のメモリー消耗の兆候はシステムログファイル (``/var/log/messages``) の次"
+"のメッセージを含みます。"
+
+#: ../../admin/faqs.en.rst:381
+msgid ""
+"To avoid memory exhaustion, add more RAM to the system or reduce the load "
+"on Traffic Server."
+msgstr ""
+"メモリーの消耗を防ぐために、システムにもっと RAM を追加するか Traffic "
+"Server の負荷を減らしてください。"
+
+#: ../../admin/faqs.en.rst:385
+msgid "Connection timeouts with the origin server"
+msgstr "オリジンサーバーとの接続タイムアウト"
+
+#: ../../admin/faqs.en.rst:387
+msgid ""
+"Certain origin servers take longer than 30 seconds to post HTTP requests, "
+"which results in connection timeouts with Traffic Server. To prevent such "
+"connection timeouts, you must change the value of the configuration "
+"variable proxy.config.http.connect_attempts_timeout in the records.config "
+"file to 60 seconds or more."
+msgstr ""
+"いくらかのオリジンサーバーが HTTP リクエストを投稿するのに 30 秒以上を費や"
+"し、これが Traffic Server で接続タイムアウトとなります。このような接続タイム"
+"アウトを防ぐためには、records.config ファイルの proxy.config.http."
+"connect_attempts_timeout 設定変数を 60 秒かそれ以上に変更しなければなりませ"
+"ん。"
+
+#: ../../admin/faqs.en.rst:32
+msgid ""
+"Create a large file on filesystem (with :manpage:`dd(1)`) and mount it as "
+"loopback device. This is accomplished with :manpage:`losetup(8)` on Linux, :"
+"manpage:`lofiadm(1m)` on Solaris and Illumos, and :manpage:`mdconfig(8)` on "
+"FreeBSD."
+msgstr ""
+"ファイルシステム上に大きなファイルを ( :manpage:`dd(1)` を使って ) 作成し、"
+"それをループバックデバイスとしてマウントしてください。これは Linux 上では  :"
+"manpage:`losetup(8)` で、Solaris と Illumos 上では :manpage:`lofiadm(1m)` 、"
+"FreeBSD 上では :manpage:`mdconfig(8)` を使って行えます。"
+
+#: ../../admin/faqs.en.rst:125
+msgid ""
+"The ``Via`` header string can be decoded with the `Via Decoder Ring <http://"
+"trafficserver.apache.org/tools/via>`_."
+msgstr ""
+"``Via`` ヘッダー文字列は `Via Decoder Ring <http://trafficserver.apache.org/"
+"tools/via>`_ でデコードできます。"
+
+#: ../../admin/faqs.en.rst:213
+msgid ""
+"This is a Web browser issue and not a problem specific to (or caused by) "
+"Traffic Server. Because Web browsers maintain a separate local cache in "
+"memory and/or disk on the client system, messages about documents that have "
+"expired from cache refer to the browser's local cache and *not* to the "
+"Traffic Server cache. There is no Traffic Server message or condition that "
+"can cause such messages to appear in a web browser."
+msgstr ""
+"これはウェブブラウザーの課題であり、Traffic Server に限ったもの ( もしく"
+"は引き起こされるもの ) ではありません。ウェブブラウザーはクライアントシス"
+"テム上にメモリと/またはディスクに別にローカルキャッシュを持っているので、"
+"有効期限の切れたドキュメントに関するメッセージは Traffic Server のキャッ"
+"シュでは\\ *なく*\\ ブラウザーのローカルキャッシュを参照します。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/forward-proxy.en.po b/doc/locale/ja/LC_MESSAGES/admin/forward-proxy.en.po
new file mode 100644
index 00000000..fa6bbf12
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/forward-proxy.en.po
@@ -0,0 +1,154 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/forward-proxy.en.rst:4
+msgid "Forward Proxy"
+msgstr "フォワードプロキシー"
+
+#: ../../admin/forward-proxy.en.rst:23
+msgid ""
+"The Apache Traffic Server is a general purpose *proxy*. As such it can also "
+"be used as forward proxy."
+msgstr ""
+"Apache Traffic Server は汎用の\\ *プロキシー*\\ です。つまりフォワードプロキ"
+"シーとしても使用できます。"
+
+#: ../../admin/forward-proxy.en.rst:26
+msgid ""
+"A forward proxy is can be used as a central tool in your infrastructure to "
+"access the web. In combination with a cache that means overall reduced "
+"bandwidth usage."
+msgstr ""
+"フォワードプロキシーは Web へアクセスするためのインフラの中心となるツールと"
+"して使われます。キャッシュと組み合わせることで使用帯域を削減できます。"
+
+#: ../../admin/forward-proxy.en.rst:30
+msgid ""
+"If your forward proxy is not also configured as :ref:`transparent-proxy` "
+"your clients will have to be configured to actually use it."
+msgstr ""
+"フォワードプロキシーが :ref:`transparent-proxy` として設定されていない場合は"
+"クライアントがそれを使うように設定する必要があるでしょう。"
+
+#: ../../admin/forward-proxy.en.rst:33
+msgid ""
+"The main difference between a forward and a transparent proxy is that User "
+"Agents *know* that they are accessing a proxy, thus forming their requests "
+"like so: ::"
+msgstr ""
+"フォワードプロキシーと透過プロキシーの主な違いはユーザーエージェントがプロキ"
+"シーにアクセスしていることを\\ *知っている*\\ ことで、次のようにリクエストを"
+"行います。::"
+
+#: ../../admin/forward-proxy.en.rst:39
+msgid "This request, then is translated by the proxy to::"
+msgstr "このリクエストはプロキシーによって次のように変換されます。::"
+
+#: ../../admin/forward-proxy.en.rst:44
+msgid ""
+"Apache Traffic Server offers two ways to User Agents: They can either be "
+"pointed directly to the default ``8080`` port. Alternatively, they can be "
+"pointed to the more dynamic :ts:cv:`proxy.config.url_remap."
+"default_to_server_pac`"
+msgstr ""
+"Apache Traffic Server はユーザーエージェントに二通りの方法を提供します。どち"
+"らもデフォルトの ``8080`` ポートを直接指定できます。あるいは、より動的にも指"
+"定できます。:ts:cv:`proxy.config.url_remap.default_to_server_pac`"
+
+#: ../../admin/forward-proxy.en.rst:48
+msgid ""
+"This port will then serve a JavaScript like configuration that User Agents "
+"can use to determine where to send their requests to."
+msgstr ""
+"このポートはユーザーエージェントがどこにリクエストを送るのかを決定するための"
+"設定ファイルのような JavaScript を返します。"
+
+#: ../../admin/forward-proxy.en.rst:52
+msgid "Configuration"
+msgstr "設定"
+
+#: ../../admin/forward-proxy.en.rst:57
+msgid ":ts:cv:`proxy.config.url_remap.remap_required` to  ``0``"
+msgstr ":ts:cv:`proxy.config.url_remap.remap_required` を ``0`` にする"
+
+#: ../../admin/forward-proxy.en.rst:59
+msgid ""
+"If your proxy is serving as *pure* forward proxy, you will also want to set"
+msgstr ""
+"プロキシーが\\ *ピュアな*\\ フォワードプロキシーの場合、次の設定も必要となる"
+"でしょう。"
+
+#: ../../admin/forward-proxy.en.rst:62
+msgid ":ts:cv:`proxy.config.reverse_proxy.enabled` to  ``0``"
+msgstr ":ts:cv:`proxy.config.reverse_proxy.enabled` を ``0`` にする"
+
+#: ../../admin/forward-proxy.en.rst:64
+msgid "Other configuration variables to consider:"
+msgstr "その他に考慮すべき設定変数は次のとおりです。"
+
+#: ../../admin/forward-proxy.en.rst:66
+msgid ":ts:cv:`proxy.config.http.no_dns_just_forward_to_parent`"
+msgstr ":ts:cv:`proxy.config.http.no_dns_just_forward_to_parent`"
+
+#: ../../admin/forward-proxy.en.rst:67
+msgid ":ts:cv:`proxy.config.http.forward.proxy_auth_to_parent`"
+msgstr ":ts:cv:`proxy.config.http.forward.proxy_auth_to_parent`"
+
+#: ../../admin/forward-proxy.en.rst:68
+msgid ":ts:cv:`proxy.config.http.insert_squid_x_forwarded_for`"
+msgstr ":ts:cv:`proxy.config.http.insert_squid_x_forwarded_for`"
+
+#: ../../admin/forward-proxy.en.rst:71
+msgid "Security Considerations"
+msgstr "セキュリティの考慮"
+
+#: ../../admin/forward-proxy.en.rst:73
+msgid ""
+"It's important to note that once your Apache Traffic Server is configured "
+"as forward proxy it will indiscriminately accept proxy requests from "
+"anyone. That means, if it's reachable on the internet, you have configured "
+"an *Open Proxy*. Most of the time, this is *not* what you want, so you'll "
+"have to make sure it's either only reachable within your NAT or is secured "
+"by firewall rules that permit only those clients to access it which you "
+"want to it to access."
+msgstr ""
+"Apache Traffic Server をフォワードプロキシーとして設定すると誰からのリクエス"
+"トでも無差別に受け付けてしまうことに注意することが重要です。これは、もしイン"
+"ターネットからアクセス可能な場合、\\ *オープンプロキシー*\\ を作ってしまった"
+"ことを意味します。ほとんどの場合これは望んでいるものでは\\ *ない*\\ ので、"
+"NAT からのみアクセス可能、もしくはファイアーウォールのルールによりアクセスさ"
+"せたいクライアントだけにアクセスを許すよう保護されることを確かにしておく必要"
+"があります。"
+
+#: ../../admin/forward-proxy.en.rst:54
+msgid ""
+"In order to configure Apache Traffic Server as forward proxy you will have "
+"to edit :file:`records.config` and set"
+msgstr ""
+"Apache Traffic Server をフォワードプロキシーとして設定するためには :file:"
+"`records.config` を編集し次の設定を行う必要があります。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/getting-started.en.po b/doc/locale/ja/LC_MESSAGES/admin/getting-started.en.po
new file mode 100644
index 00000000..00edebde
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/getting-started.en.po
@@ -0,0 +1,348 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2013-11-23 01:06+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/getting-started.en.rst:5
+msgid "Getting Started"
+msgstr "はじめに"
+
+#: ../../admin/getting-started.en.rst:29
+msgid "Before you start"
+msgstr "始める前に"
+
+#: ../../admin/getting-started.en.rst:31
+msgid ""
+"Before you get started with Traffic Server you may have to decide which "
+"version you want to use. Traffic Server follows the `Semantic Versioning "
+"<http://semver.org>`_ guidelines, in summary"
+msgstr ""
+"Traffic Server を使い始める前に、どのバージョンを使うか決める必要がありま"
+"す。Traffic Server は `Semantic Versioning<http://semver.org>`_ ガイドライン"
+"に従っています。"
+
+#: ../../admin/getting-started.en.rst:35
+msgid "A version is made of a version-triplet: ``MAJOR.MINOR.PATCH``"
+msgstr ""
+"バージョンは次のような 3つ組みのバージョンで構成されています。 ``MAJOR."
+"MINOR.PATCH``"
+
+#: ../../admin/getting-started.en.rst:37
+msgid ""
+"As of v4.0.0, there are no longer any development (or unstable) releases. "
+"All releases are considered stable and ready for production use, releases "
+"within a major version are always upgrade compatible. More details are "
+"available on the `Wiki page <https://cwiki.apache.org/confluence/display/TS/"
+"New+Release+Processes>`_."
+msgstr ""
+"v4.0.0 から開発版(もしくは非安定版) リリースを行わなくなりました。全てのリ"
+"リースは安定性を考慮され、プロダクションでの使用の準備ができています。メ"
+"ジャーバージョンの同じリリースは常に後方互換性を持っています。詳しくは "
+"`Wiki page <https://cwiki.apache.org/confluence/display/TS/New+Release"
+"+Processes>`_ にあります。"
+
+#: ../../admin/getting-started.en.rst:43
+msgid ""
+"Sometimes we speak of trunk, master or HEAD, all of which are used "
+"interchangeably: trunk or master or sometimes TIP or HEAD, refer to the "
+"latest code in a Git Version Control System. Master is always kept "
+"releasable, and compatible with the current major release version. "
+"Incompatible changes are sometimes committed on a next-major release "
+"branch, for example we have the ``5.0.x`` branch where changes incompatible "
+"with 4.x are managed."
+msgstr ""
+"トランクやマスターもしくはヘッドと言うこともありますが、これらは同じ意味で使"
+"われています。トランクやマスターまた TIP や HEAD は Git Version Control "
+"System での最新のコードを指します。マスターは常にリリース可能な状態に保たれ"
+"ており、カレントのメジャーリリースバージョンと互換性があります。互換性のない"
+"変更は next-major リリースブランチにコミットされることがあります。例えば 4."
+"x と互換性のない変更が管理されている ``5.0.x`` というブランチがあります。"
+
+#: ../../admin/getting-started.en.rst:50
+msgid ""
+"If your distribution does not come with a prepackaged Traffic Server, "
+"please go to `downloads </downloads>`_ to choose the version that you "
+"consider most appropriate for yourself. If you want to really be on the "
+"bleeding edge you can clone our `git repository <https://git-wip-us.apache."
+"org/repos/asf/trafficserver.git>`_."
+msgstr ""
+"お使いのディストリビューションが Traffic Server をあらかじめパッケージしてい"
+"ない場合、 `downloads </downloads>`_ へ行き、最も適切だと考えられるバージョ"
+"ンを選んでください。最先端のものが本当に欲しい場合は `git repository "
+"<https://git-wip-us.apache.org/repos/asf/trafficserver.git>`_ をクローンして"
+"ください。"
+
+#: ../../admin/getting-started.en.rst:56
+msgid ""
+"Please note that while we do have a `GitHub Mirror <https://github.com/"
+"apache/trafficserver>`_ that you can also use to submit pull requests, it "
+"may not be entirely up-to-date."
+msgstr ""
+"Pull-Request を送ることができる `GitHub Mirror <https://github.com/apache/"
+"trafficserver>`_ を持っていますが、これは最新版ではないかもしれないことに注"
+"意してください。"
+
+#: ../../admin/getting-started.en.rst:61
+msgid "Building Traffic Server"
+msgstr "Traffic Server のビルド"
+
+#: ../../admin/getting-started.en.rst:63
+msgid ""
+"In order to build Traffic Server from source you will need the following "
+"(development) packages:"
+msgstr ""
+"Traffic Server をソースコードからビルドするために、次の(開発)パッケージが必"
+"要です。"
+
+#: ../../admin/getting-started.en.rst:66
+msgid "pkgconfig"
+msgstr "pkgconfig"
+
+#: ../../admin/getting-started.en.rst:67
+msgid "libtool"
+msgstr "libtool"
+
+#: ../../admin/getting-started.en.rst:68
+msgid "gcc (>= 4.3 or clang > 3.0)"
+msgstr "gcc (>= 4.3 or clang > 3.0)"
+
+#: ../../admin/getting-started.en.rst:69
+msgid "make (GNU Make!)"
+msgstr "make (GNU Make!)"
+
+#: ../../admin/getting-started.en.rst:70
+msgid "openssl"
+msgstr "openssl"
+
+#: ../../admin/getting-started.en.rst:71
+msgid "tcl"
+msgstr "tcl"
+
+#: ../../admin/getting-started.en.rst:72
+msgid "expat"
+msgstr "expat"
+
+#: ../../admin/getting-started.en.rst:73
+msgid "pcre"
+msgstr "pcre"
+
+#: ../../admin/getting-started.en.rst:74
+msgid "libcap"
+msgstr "libcap"
+
+#: ../../admin/getting-started.en.rst:75
+msgid "flex (for TPROXY)"
+msgstr "flex (for TPROXY)"
+
+#: ../../admin/getting-started.en.rst:76
+msgid "hwloc"
+msgstr "hwloc"
+
+#: ../../admin/getting-started.en.rst:77
+msgid "lua"
+msgstr "lua"
+
+#: ../../admin/getting-started.en.rst:78
+msgid "curses"
+msgstr "curses"
+
+#: ../../admin/getting-started.en.rst:81
+msgid "if you're building from a git clone, you'll also need"
+msgstr "git クローンからビルドする場合は、次のものも必要です。"
+
+#: ../../admin/getting-started.en.rst:83
+msgid "git"
+msgstr "git"
+
+#: ../../admin/getting-started.en.rst:84
+msgid "autoconf"
+msgstr "autoconf"
+
+#: ../../admin/getting-started.en.rst:85
+msgid "automake"
+msgstr "automake"
+
+#: ../../admin/getting-started.en.rst:87
+msgid "We will show-case a build from git::"
+msgstr "git からビルドする例をお見せしましょう。"
+
+#: ../../admin/getting-started.en.rst:91
+msgid "Next, we ``cd trafficserver`` and run::"
+msgstr "次に、``cd trafficserver`` を実行し、次のコマンドを実行します。"
+
+#: ../../admin/getting-started.en.rst:95
+msgid ""
+"This will generate a ``configure`` file from ``configure.ac``, so now we "
+"can run that::"
+msgstr ""
+"これは ``configure`` ファイルを ``configure.ac`` から生成するので、次のコマ"
+"ンドを実行できます。"
+
+#: ../../admin/getting-started.en.rst:100
+msgid ""
+"Note well, that by default Traffic Server uses the user ``nobody``, as well "
+"as user's primary group as Traffic Server user. If you want to change that, "
+"you can override it here::"
+msgstr ""
+"デフォルトでは Traffic Server ユーザーとして ``nobody`` ユーザーを使用するこ"
+"とに注意してください。プライマリーグループについても同様です。これを変更した"
+"い場合、上書きすることができます。"
+
+#: ../../admin/getting-started.en.rst:106
+msgid ""
+"If dependencies are not in standard paths (``/usr/local`` or ``/usr``), you "
+"need to pass options to ``configure`` to account for that::"
+msgstr ""
+"標準的なパス ( ``/usr/local`` や ``/usr`` ) に依存関係がない場合、次のよう"
+"に ``configure`` にオプションを通す必要があります。"
+
+#: ../../admin/getting-started.en.rst:111
+msgid ""
+"Most ``configure`` path-options accept a format of ``\"INCLUDE_PATH:"
+"LIBRARY_PATH\"``::"
+msgstr ""
+"ほとんどの ``configure`` パスオプションは ``\"INCLUDE_PATH:LIBRARY_PATH\"`` "
+"というフォーマットを受け入れます。"
+
+#: ../../admin/getting-started.en.rst:117
+msgid ""
+"We can run ``make`` to build the project. We highly recommend to run ``make "
+"check`` to verify the build's general sanity::"
+msgstr ""
+"プロジェクトをビルドするために ``make`` コマンドを実行しましょう。ビルドの一"
+"般的な正常さを確かめるために ``make check`` コマンドを実行することを強く推奨"
+"します。"
+
+#: ../../admin/getting-started.en.rst:123
+msgid ""
+"We can finally run ``make install`` to install (you may have to switch to "
+"root to do this)::"
+msgstr ""
+"最後に ``make install`` コマンドを実行しましょう。(おそらく root になること"
+"が必要でしょう)"
+
+#: ../../admin/getting-started.en.rst:128
+msgid ""
+"We also recommend to run a regression test. Please note that this will only "
+"work successfully with the default ``layout``::"
+msgstr ""
+"レグレッションテストを実行することも推奨します。これはデフォルト``レイアウト"
+"``で正常に動作することに注意してください。"
+
+#: ../../admin/getting-started.en.rst:134
+msgid ""
+"After you have installed Traffic Server on your system, you can do any of "
+"the following:"
+msgstr ""
+"Traffic Server をシステム上にインストールした後、次のどれでもできます。"
+
+#: ../../admin/getting-started.en.rst:140
+msgid "Start Traffic Server"
+msgstr "Traffic Server を起動する"
+
+#: ../../admin/getting-started.en.rst:142
+msgid ""
+"To start Traffic Server manually, issue the ``trafficserver`` command, "
+"passing in the attribute ``start``. This command starts all the processes "
+"that work together to process Traffic Server requests as well as manage, "
+"control, and monitor the health of the Traffic Server system."
+msgstr ""
+"Traffic Server を手動で起動するには ``trafficserver`` コマンドに ``start`` "
+"を発行します。このコマンドは Traffic Server へのリクエストを処理したり、"
+"Traffic Server システムの状態を管理、制御、監視するためのすべてのプロセスを"
+"起動します。"
+
+#: ../../admin/getting-started.en.rst:147
+msgid "To run the ``trafficserver start`` command, e.g.::"
+msgstr "``trafficserver start`` コマンドを実行するには次のようにします。"
+
+#: ../../admin/getting-started.en.rst:151
+msgid ""
+"At this point your server is up and running in the default configuration of "
+"a :ref:`reverse-proxy-and-http-redirects`."
+msgstr ""
+"この時点でサーバーは :ref:`../reverse-proxy-http-redirects` のデフォルト設定"
+"で起動し、動作しています。"
+
+#: ../../admin/getting-started.en.rst:157
+msgid "Start Traffic Line"
+msgstr "Traffic Line を使用する"
+
+#: ../../admin/getting-started.en.rst:159
+msgid ""
+"Traffic Line provides a quick way of viewing Traffic Server statistics and "
+"configuring the Traffic Server system via command-line interface. To "
+"execute individual commands or script multiple commands, refer to :program:"
+"`traffic_line`."
+msgstr ""
+"Traffic Line は Traffic Server の統計を見たり、コマンドラインインターフェー"
+"スによる Traffic Server の設定をする簡単な方法を提供しています。独立したコマ"
+"ンドの実行または複数のコマンドのスクリプトについては :program:"
+"`traffic_line` を参照してください。"
+
+#: ../../admin/getting-started.en.rst:164
+msgid "Traffic Line commands take the following form::"
+msgstr "Traffic Line コマンドは次のようなフォームを受け取ります。"
+
+#: ../../admin/getting-started.en.rst:168
+msgid "For a list of :program:`traffic_line` commands, enter::"
+msgstr ""
+":program:`traffic_line` のコマンドのリストを見るにはこのように実行してくださ"
+"い。"
+
+#: ../../admin/getting-started.en.rst:172
+msgid ""
+"Please note that :program:`traffic_line`, while a fine tool for an "
+"administrator, is a poor choice for automation, especially that of "
+"monitoring. See our chapter on :ref:`monitoring-traffic` for how to do that "
+"better."
+msgstr ""
+"次のことに注意してください。 :program:`traffic_line` は管理者にとっては十分"
+"なツールである一方で、自動化のためには貧弱な選択です。とくに監視については。"
+"正しく監視する方法については :ref:`monitoring-traffic` の章を参照してくださ"
+"い。"
+
+#: ../../admin/getting-started.en.rst:180
+msgid "Stop Traffic Server"
+msgstr "Traffic Server を停止する"
+
+#: ../../admin/getting-started.en.rst:182
+msgid ""
+"To stop Traffic Server, always use the :program:`trafficserver` command, "
+"passing in the attribute ``stop``. This command stops all the Traffic "
+"Server processes (:program:`traffic_manager`, :program:`traffic_server`, "
+"and :program:`traffic_cop`). Do not manually stop processes, as this can "
+"lead to unpredictable results.::"
+msgstr ""
+"Traffic Server を停止するには常に :program:`trafficserver` コマンドに "
+"``stop`` を渡します。このコマンドは全ての Traffic Server プロセス ( :"
+"program:`traffic_manager`, :program:`traffic_server`, :program:"
+"`traffic_cop` ) を停止します。予想できない結果を招くので、手動で各プロセスを"
+"止めないでください。"
+
+#: ../../admin/getting-started.en.rst:79
+msgid "curl (both for :program:`traffic_top`)"
+msgstr "curl (both for :program:`traffic_top`)"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/hierachical-caching.en.po b/doc/locale/ja/LC_MESSAGES/admin/hierachical-caching.en.po
new file mode 100644
index 00000000..86cdbf57
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/hierachical-caching.en.po
@@ -0,0 +1,184 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/hierachical-caching.en.rst:4
+msgid "Hierarchical Caching"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:28
+msgid "Understanding Cache Hierarchies"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:30
+msgid ""
+"A cache hierarchy consists of cache levels that communicate with each "
+"other. Traffic Server supports several types of cache hierarchies. All "
+"cache hierarchies recognize the concept of **parent** and **child**. A "
+"parent cache is a cache higher up in the hierarchy, to which Traffic Server "
+"can forward requests. A child cache is a cache for which Traffic Server is "
+"a parent."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:37
+msgid "Traffic Server supports the following hierarchical caching options:"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:40
+msgid "Parent Caching"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:42
+msgid ""
+"If a Traffic Server node cannot find a requested object in its cache, then "
+"it searches a parent cache (which itself can search other caches) before "
+"finally retrieving the object from the origin server. You can configure a "
+"Traffic Server node to use one or more parent caches so that if one parent "
+"is unavailable, then another parent is availale to service requests. This "
+"is called `Parent Failover`_. Traffic Server will support parent caching "
+"for HTTP and HTTPS requests."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:55
+msgid ""
+"The figure below illustrates a simple cache hierarchy with a Traffic Server "
+"node configured to use a parent cache. In the following scenario, a client "
+"sends a request to a Traffic Server node that is a child in the cache "
+"hierarchy (because it's configured to forward missed requests to a parent "
+"cache). The request is a cache miss, so Traffic Server then forwards the "
+"request to the parent cache, where it is a cache hit. The parent sends a "
+"copy of the content to the Traffic Server, where it is cached and then "
+"served to the client. Future requests for this content can now be served "
+"directly from the Traffic Server cache (until the data is stale or expired)."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:70
+msgid "Parent caching"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:72
+msgid ""
+"**Note:** If the request is a cache miss on the parent, then the parent "
+"retrieves the content from the origin server (or from another cache, "
+"depending on the parent’s configuration). The parent caches the content and "
+"then sends a copy to Traffic Server (its child), where it is cached and "
+"served to the client."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:79
+msgid "Parent Failover"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:81
+msgid ""
+"Traffic Server supports use of several parent caches. This ensures that if "
+"one parent cache is not available, another parent cache can service client "
+"requests."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:85
+msgid ""
+"When you configure your Traffic Server to use more than one parent cache, "
+"Traffic Server detects when a parent is not available and sends missed "
+"requests to another parent cache. If you specify more than two parent "
+"caches, then the order in which the parent caches are queried depends upon "
+"the parent proxy rules configured in the file:`parent.config` configuration "
+"file. By default, the parent caches are queried in the order they are "
+"listed in the configuration file."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:96
+msgid "Configuring Traffic Server to Use a Parent Cache"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:98
+msgid ""
+"To configure Traffic Server to use one or more parent caches, you must "
+"complete the following steps:"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:101
+msgid "Enable the parent caching option."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:102
+msgid ""
+"Identify the parent cache you want to use to service missed requests. To "
+"use **parent failover**, you must identify more than one parent cache so "
+"that when a parent cache is unavailable, requests are sent to another "
+"parent cache."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:107
+msgid ""
+"You need to configure the child cache only. No additional configuration is "
+"needed for the Traffic Server parent cache."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:109
+msgid ""
+"Configure Traffic Server to use a parent cache by editing the following "
+"variable :ts:cv:`proxy.config.http.parent_proxy_routing_enable` in :file:"
+"`records.config` file."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:112
+msgid ""
+"Edit the :file:`parent.config` file located in the Traffic Server "
+"``config`` directory to set parent proxy rules to specify the parent cache "
+"to which you want missed requests to be forwarded;"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:116
+msgid ""
+"The following example configures Traffic Server to route all requests "
+"containing the regular expression ``politics`` and the path ``/viewpoint`` "
+"directly to the origin server (bypassing any parent hierarchies): ::"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:123
+msgid ""
+"The following example configures Traffic Server to direct all missed "
+"requests with URLs beginning with ``http://host1`` to the parent cache "
+"``parent1``. If ``parent1`` cannot serve the requests, then requests are "
+"forwarded to ``parent2``. Because ``round-robin=true``, Traffic Server goes "
+"through the parent cache list in a round-robin based on client IP address.::"
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:132
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ""
+
+#: ../../admin/hierachical-caching.en.rst:50
+msgid ""
+"**Note:** If you do not want all requests to go to the parent cache, then "
+"simply configure Traffic Server to route certain requests (such as requests "
+"containing specific URLs) directly to the origin server. Simply set parent "
+"proxy rules in :file:`parent.config`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/admin/http-proxy-caching.en.po b/doc/locale/ja/LC_MESSAGES/admin/http-proxy-caching.en.po
new file mode 100644
index 00000000..43bd1dd0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/http-proxy-caching.en.po
@@ -0,0 +1,1885 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2013-12-15 14:15+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/http-proxy-caching.en.rst:4
+msgid "HTTP Proxy Caching"
+msgstr "HTTP プロキシーキャッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:23
+msgid ""
+"Web proxy caching enables you to store copies of frequently-accessed web "
+"objects (such as documents, images, and articles) and then serve this "
+"information to users on demand. It improves performance and frees up "
+"Internet bandwidth for other tasks."
+msgstr ""
+"ウェブプロキシーキャッシュは頻繁にアクセスされるウェブオブジェクト(ドキュメ"
+"ントや画像、記事など)のコピーを保存し、ユーザーの求めに応じてこれらを配信す"
+"ることを可能にします。これはパフォーマンスを向上させ、インターネットの帯域を"
+"他のタスクのために空けます。"
+
+#: ../../admin/http-proxy-caching.en.rst:32
+msgid "Understanding HTTP Web Proxy Caching"
+msgstr "HTTP ウェブプロキシーキャッシュの理解"
+
+#: ../../admin/http-proxy-caching.en.rst:34
+msgid ""
+"Internet users direct their requests to web servers all over the Internet. "
+"A caching server must act as a **web proxy server** so it can serve those "
+"requests. After a web proxy server receives requests for web objects, it "
+"either serves the requests or forwards them to the **origin server** (the "
+"web server that contains the original copy of the requested information). "
+"The Traffic Server proxy supports **explicit proxy caching**, in which the "
+"user's client software must be configured to send requests directly to the "
+"Traffic Server proxy. The following overview illustrates how Traffic Server "
+"serves a request."
+msgstr ""
+"インターネットユーザはインターネット上のウェブサーバーへリクエストを出しま"
+"す。キャッシュサーバーはこれらのリクエストを満たすために **ウェブプロキシ"
+"サーバー** として振る舞わなくてはなりません。ウェブプロキシーサーバーがウェ"
+"ブオブジェクトへのリクエストを受け取った後は、そのリクエストを返すか、**オリ"
+"ジンサーバー** (リクエストされた情報のオリジナルコピーを持っているウェブサー"
+"バー)へ転送します。Traffic Server プロキシーは **explicit proxy caching** を"
+"サポートしています。この際、ユーザーのクライアントソフトが Traffic Server プ"
+"ロキシーへ直接リクエストを送るように設定されている必要があります。次のオー"
+"バービューは Traffic Server がどのようにリクエストを返すかを描いています。"
+
+#: ../../admin/http-proxy-caching.en.rst:44
+msgid "Traffic Server receives a client request for a web object."
+msgstr ""
+"Traffic Server がウェブオブジェクトへのクライアントリクエストを受け取りま"
+"す。"
+
+#: ../../admin/http-proxy-caching.en.rst:46
+msgid ""
+"Using the object address, Traffic Server tries to locate the requested "
+"object in its object database (**cache**)."
+msgstr ""
+"オブジェクトのアドレスを用いて、Traffic Server はオブジェクトデータベース"
+"( **キャッシュ** )からリクエストされたオブジェクトを探します。"
+
+#: ../../admin/http-proxy-caching.en.rst:49
+msgid ""
+"If the object is in the cache, then Traffic Server checks to see if the "
+"object is fresh enough to serve. If it is fresh, then Traffic Server serves "
+"it to the client as a **cache hit** (see the figure below)."
+msgstr ""
+"キャッシュにオブジェクトがある場合、Traffic Server はオブジェクトが提供する"
+"のに十分新しいか確認します。新しい場合、Traffic Server は *キャッシュヒット"
+"* (下の図を見てください) としてクライアントにそれを提供します。"
+
+#: ../../admin/http-proxy-caching.en.rst:58
+msgid "A cache hit"
+msgstr "キャッシュヒット"
+
+#: ../../admin/http-proxy-caching.en.rst:60
+msgid ""
+"If the data in the cache is stale, then Traffic Server connects to the "
+"origin server and checks if the object is still fresh (a :term:"
+"`revalidation`). If it is, then Traffic Server immediately sends the cached "
+"copy to the client."
+msgstr ""
+"キャッシュのデータが古い場合、Traffic Server はオリジンサーバーへ接続し、オ"
+"ブジェクトが依然新しいかどうか確認します。( :term:`再確認` ) 新しい場合、"
+"Traffic Server はすぐにキャッシュしているコピーをクライアントに送ります。"
+
+#: ../../admin/http-proxy-caching.en.rst:65
+msgid ""
+"If the object is not in the cache (a **cache miss**) or if the server "
+"indicates the cached copy is no longer valid, then Traffic Server obtains "
+"the object from the origin server. The object is then simultaneously "
+"streamed to the client and the Traffic Server local cache (see the figure "
+"below). Subsequent requests for the object can be served faster because the "
+"object is retrieved directly from cache."
+msgstr ""
+"オブジェクトがキャッシュに無い場合 ( **キャッシュミス**) やサーバーがキャッ"
+"シュしたコピーをもはや有効ではないと判断した場合、 Traffic Server はオリジン"
+"サーバーからオブジェクトを取得します。オブジェクトはクライアントと Traffic "
+"Server のローカルキャッシュに同時に流されます。(下の図を見てください) 続いて"
+"起こるオブジェクトへのリクエストはよりはやく提供することができます。それはオ"
+"ブジェクトがキャッシュから直接検索されるからです。"
+
+#: ../../admin/http-proxy-caching.en.rst:76
+msgid "A cache miss"
+msgstr "キャッシュミス"
+
+#: ../../admin/http-proxy-caching.en.rst:78
+msgid ""
+"Caching is typically more complex than the preceding overview suggests. In "
+"particular, the overview does not discuss how Traffic Server ensures "
+"freshness, serves correct HTTP alternates, and treats requests for objects "
+"that cannot/should not be cached. The following sections discuss these "
+"issues in greater detail."
+msgstr ""
+"一般的にキャッシュは前述の概要で説明したものよりも複雑です。 詳しく述べる"
+"と、概要では Traffic Server がどのように新鮮さを保証し、正しい HTTP オブジェ"
+"クトの代替を提供し、キャッシュできない/するべきではないオブジェクトへのリク"
+"エストを扱うかについて説明されていませんでした。次の章はこれらのことについて"
+"とても詳しく説明します。"
+
+#: ../../admin/http-proxy-caching.en.rst:85
+msgid "Ensuring Cached Object Freshness"
+msgstr "キャッシュされたオブジェクトの新鮮さの保証"
+
+#: ../../admin/http-proxy-caching.en.rst:87
+msgid ""
+"When Traffic Server receives a request for a web object, it first tries to "
+"locate the requested object in its cache. If the object is in cache, then "
+"Traffic Server checks to see if the object is fresh enough to serve. For "
+"HTTP objects, Traffic Server supports optional author-specified expiration "
+"dates. Traffic Server adheres to these expiration dates; otherwise, it "
+"picks an expiration date based on how frequently the object is changing and "
+"on administrator-chosen freshness guidelines. Objects can also be "
+"revalidated by checking with the origin server to see if an object is still "
+"fresh."
+msgstr ""
+"Traffic Server がウェブオブジェクトへのリクエストを受け取った際、最初にリク"
+"エストされたオブジェクトをキャッシュから探します。オブジェクトがキャッシュに"
+"ある場合、Traffic Server はオブジェクトが提供するのに十分新しいかどうかを確"
+"認します。 Traffic Server は HTTP オブジェクトに作成者が指定した有効期限をサ"
+"ポートしています。 Traffic Server はこれらの有効期限を固く守ります。つまり、"
+"どれだけ頻繁にオブジェクトが変更されるかと、管理者が選んだフレッシュネスガイ"
+"ドラインに基づいて、有効期限を選択します。オブジェクトはまた、依然として新し"
+"いかどうかをオリジンサーバーへ見に行くことにより、再検証されます。"
+
+#: ../../admin/http-proxy-caching.en.rst:98
+msgid "HTTP Object Freshness"
+msgstr "HTTP オブジェクトの新鮮さ"
+
+#: ../../admin/http-proxy-caching.en.rst:100
+msgid ""
+"Traffic Server determines whether an HTTP object in the cache is fresh by:"
+msgstr ""
+"Traffic Server はキャッシュした HTTP オブジェクトが新しいかどうかを次のこと"
+"によって決定します。"
+
+#: ../../admin/http-proxy-caching.en.rst:103
+msgid "**Checking the** ``Expires`` **or** ``max-age`` **header**"
+msgstr "``Expires`` **や** ``max-age`` **ヘッダーの確認**"
+
+#: ../../admin/http-proxy-caching.en.rst:105
+msgid ""
+"Some HTTP objects contain ``Expires`` headers or ``max-age`` headers that "
+"explicitly define how long the object can be cached. Traffic Server "
+"compares the current time with the expiration time to determine if the "
+"object is still fresh."
+msgstr ""
+"いくつかの HTTP オブジェクトは ``Expire`` ヘッダーや ``max-age`` ヘッダーを"
+"含んでいます。これらはオブジェクトがどれくらいの期間キャッシュできるかどうか"
+"を明確に定義しています。 Traffic Server はオブジェクトが新しいかどうかを決定"
+"するために、現在時刻と有効期限を比較します。"
+
+#: ../../admin/http-proxy-caching.en.rst:110
+msgid "**Checking the** ``Last-Modified`` **/** ``Date`` **header**"
+msgstr "``Last-Modified`` **/** ``Date`` **ヘッダーの確認**"
+
+#: ../../admin/http-proxy-caching.en.rst:112
+msgid ""
+"If an HTTP object has no ``Expires`` header or ``max-age`` header, then "
+"Traffic Server can calculate a freshness limit using the following formula::"
+msgstr ""
+"HTTP オブジェクトが ``Expire`` ヘッダーや ``max-age`` ヘッダーを持っていない"
+"場合、Traffic Server はフレッシュネスリミットを次の式で計算します。"
+
+#: ../../admin/http-proxy-caching.en.rst:118
+msgid ""
+"where *date* is the date in the object's server response header and "
+"*last_modified* is the date in the ``Last-Modified`` header. If there is no "
+"``Last-Modified`` header, then Traffic Server uses the date the object was "
+"written to cache. The value ``0.10`` (10 percent) can be increased or "
+"reduced to better suit your needs (refer to `Modifying Aging Factor for "
+"Freshness Computations`_)."
+msgstr ""
+"この *date* はオブジェクトのサーバーのレスポンスヘッダーの日付で、"
+"*last_modified* は ``Last-Modified`` ヘッダーの日付です。 ``Last-Modified`` "
+"ヘッダーが無い場合、Traffic Server はオブジェクトがキャッシュに書かれた日時"
+"を使用します。 ``0.10`` (10 %) という値は必要に応じて、増減することができま"
+"す。 (詳しくは `新鮮さの計算のための期間要素の変更`_ を参照してください)"
+
+#: ../../admin/http-proxy-caching.en.rst:125
+msgid ""
+"The computed freshness limit is bound by a minimum and maximum value - "
+"refer to `Setting Absolute Freshness Limits`_ for more information."
+msgstr ""
+"計算されたフレッシュネスリミットは最小値と最大値に紐づけられます。 - 詳細は "
+"`絶対フレッシュネスリミットの設定`_ を参照してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:128
+msgid "**Checking the absolute freshness limit**"
+msgstr "**絶対フレッシュネスリミットの確認**"
+
+#: ../../admin/http-proxy-caching.en.rst:130
+msgid ""
+"For HTTP objects that do not have ``Expires`` headers or do not have both "
+"``Last-Modified`` and ``Date`` headers, Traffic Server uses a maximum and "
+"minimum freshness limit (refer to `Setting Absolute Freshness Limits`_)."
+msgstr ""
+"``Expires`` ヘッダーを持っていない、もしくは ``Last-Modified`` と ``Date`` "
+"ヘッダーの両方をもっていない HTTP オブジェクトについて、Traffic Server はフ"
+"レッシュネスリミットの最小値と最大値を使用します。( `絶対フレッシュネスリ"
+"ミットの設定`_ を参照してください。)"
+
+#: ../../admin/http-proxy-caching.en.rst:134
+msgid "**Checking revalidate rules in the** :file:`cache.config` **file**"
+msgstr ":file:`cache.config` **ファイル内の再確認ルールの確認**"
+
+#: ../../admin/http-proxy-caching.en.rst:136
+msgid ""
+"Revalidate rules apply freshness limits to specific HTTP objects. You can "
+"set freshness limits for objects originating from particular domains or IP "
+"addresses, objects with URLs that contain specified regular expressions, "
+"objects requested by particular clients, and so on (refer to :file:`cache."
+"config`)."
+msgstr ""
+"再検証ルールは特定の HTTP オブジェクトにフレッシュネスリミットを適用します。"
+"特定のドメインや IP アドレスから来たオブジェクト、特定の正規表現を含む URL "
+"を持つオブジェクトや特定のクライアントからリクエストされたオブジェクトなどに"
+"フレッシュネスリミットを設定することができます。( :file:`cache.config` を参"
+"照してください。)"
+
+#: ../../admin/http-proxy-caching.en.rst:143
+msgid "Modifying Aging Factor for Freshness Computations"
+msgstr "新鮮さの計算のための期間要素の変更"
+
+#: ../../admin/http-proxy-caching.en.rst:145
+msgid ""
+"If an object does not contain any expiration information, then Traffic "
+"Server can estimate its freshness from the ``Last-Modified`` and ``Date`` "
+"headers. By default, Traffic Server stores an object for 10% of the time "
+"that elapsed since it last changed. You can increase or reduce the "
+"percentage according to your needs."
+msgstr ""
+"オブジェクトが有効期限に関する情報を持っていない場合、Traffic Server は "
+"``Last-Modified`` と ``Date`` ヘッダーから新鮮さを見積もります。デフォルトで"
+"は Traffic Server は最後に更新されてからの経過時間の 10 % キャッシュしま"
+"す。 必要に応じて、増減することができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:151
+msgid "To modify the aging factor for freshness computations"
+msgstr "新鮮さの計算のための期間の要素を変更するためには、"
+
+#: ../../admin/http-proxy-caching.en.rst:153
+msgid ""
+"Change the value for :ts:cv:`proxy.config.http.cache.heuristic_lm_factor`."
+msgstr ""
+":ts:cv:`proxy.config.http.cache.heuristic_lm_factor` の値を変更してくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:155
+#: ../../admin/http-proxy-caching.en.rst:173
+#: ../../admin/http-proxy-caching.en.rst:192
+#: ../../admin/http-proxy-caching.en.rst:281
+#: ../../admin/http-proxy-caching.en.rst:332
+msgid ""
+"Run the :option:`traffic_line -x` command to apply the configuration "
+"changes."
+msgstr ""
+"設定変更を適用するために :option:`traffic_line -x` コマンドを実行してくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:159
+msgid "Setting absolute Freshness Limits"
+msgstr "絶対フレッシュネスリミットの設定"
+
+#: ../../admin/http-proxy-caching.en.rst:161
+msgid ""
+"Some objects do not have ``Expires`` headers or do not have both ``Last-"
+"Modified`` and ``Date`` headers. To control how long these objects are "
+"considered fresh in the cache, specify an **absolute freshness limit**."
+msgstr ""
+"いくつかのオブジェクトは ``Expires`` ヘッダーを持っていない、もしくは "
+"``Last-Modified`` と ``Date`` ヘッダーの両方を持っていないことがあります。こ"
+"れらのオブジェクトがキャッシュされてどの程度フレッシュであると考えられるか制"
+"御するために、 **絶対フレッシュネスリミット** があります。"
+
+#: ../../admin/http-proxy-caching.en.rst:166
+msgid "To specify an absolute freshness limit"
+msgstr "絶対フレッシュネスリミットを明確にするために"
+
+#: ../../admin/http-proxy-caching.en.rst:168
+msgid "Edit the variables"
+msgstr "次の変数を変更してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:170
+msgid ":ts:cv:`proxy.config.http.cache.heuristic_min_lifetime`"
+msgstr ":ts:cv:`proxy.config.http.cache.heuristic_min_lifetime`"
+
+#: ../../admin/http-proxy-caching.en.rst:171
+msgid ":ts:cv:`proxy.config.http.cache.heuristic_max_lifetime`"
+msgstr ":ts:cv:`proxy.config.http.cache.heuristic_max_lifetime`"
+
+#: ../../admin/http-proxy-caching.en.rst:177
+msgid "Specifying Header Requirements"
+msgstr "必須ヘッダーの記述"
+
+#: ../../admin/http-proxy-caching.en.rst:179
+msgid ""
+"To further ensure freshness of the objects in the cache, configure Traffic "
+"Server to cache only objects with specific headers. By default, Traffic "
+"Server caches all objects (including objects with no headers); you should "
+"change the default setting only for specialized proxy situations. If you "
+"configure Traffic Server to cache only HTTP objects with ``Expires`` or "
+"``max-age`` headers, then the cache hit rate will be noticeably reduced "
+"(since very few objects will have explicit expiration information)."
+msgstr ""
+"よりいっそうキャッシュしているオブジェクトの新鮮さを確かめるために、特定の"
+"ヘッダーを持っているオブジェクトだけをキャッシュするように Traffic Server を"
+"設定することができます。デフォルトでは Traffic Server は(ヘッダーがないもの"
+"も含む)全てのオブジェクトをキャッシュします。特別なプロキシーの状況の場合の"
+"みデフォルト設定を変更するべきです。Traffic Server を ``Expires`` もしくは "
+"``max-age`` ヘッダーを持つオブジェクトだけをキャッシュするように設定した場"
+"合、キャッシュヒット率は明らかに下がるでしょう。(とても少ないオブジェクトし"
+"か明確な有効期限の情報をもっていないと考えられるためです。)"
+
+#: ../../admin/http-proxy-caching.en.rst:188
+msgid "To configure Traffic Server to cache objects with specific headers"
+msgstr ""
+"特定のヘッダーを持つオブジェクトをキャッシュするように Traffic Server を設定"
+"するには"
+
+#: ../../admin/http-proxy-caching.en.rst:190
+msgid ""
+"Change the value for :ts:cv:`proxy.config.http.cache.required_headers`."
+msgstr ""
+":ts:cv:`proxy.config.http.cache.required_headers` の値を変更してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:198
+msgid "Cache-Control Headers"
+msgstr "Cache-Control ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:200
+msgid ""
+"Even though an object might be fresh in the cache, clients or servers often "
+"impose their own constraints that preclude retrieval of the object from the "
+"cache. For example, a client might request that a object *not* be retrieved "
+"from a cache, or if it does, then it cannot have been cached for more than "
+"10 minutes. Traffic Server bases the servability of a cached object on "
+"``Cache-Control`` headers that appear in both client requests and server "
+"responses. The following ``Cache-Control`` headers affect whether objects "
+"are served from cache:"
+msgstr ""
+"キャッシュしたあるオブジェクトが新鮮だと思われる場合であっても、クライアント"
+"やサーバーはキャッシュからのオブジェクトの読み出しを妨害するようにたびたび制"
+"限を課します。例えば、あるクライアントがキャッシュから復旧するべき *ではない"
+"* オブジェクトへリクエストするかもしれません。また、それをした場合、10 分以"
+"上はキャッシュすることはできません。 Traffic Server はキャッシュしたオブジェ"
+"クトの提供可能性をクライアントのリクエストとサーバーのレスポンス両方に現れ"
+"る ``Cache-Control`` ヘッダーを根拠に決定しています。次のような ``Cache-"
+"Control`` ヘッダーはキャッシュからオブジェクトを提供するかどうかに影響しま"
+"す。"
+
+#: ../../admin/http-proxy-caching.en.rst:209
+msgid ""
+"The ``no-cache`` header, sent by clients, tells Traffic Server that it "
+"should not serve any objects directly from the cache; therefore, Traffic "
+"Server will always obtain the object from the origin server. You can "
+"configure Traffic Server to ignore client ``no-cache`` headers - refer to "
+"`Configuring Traffic Server to Ignore Client no-cache Headers`_ for more "
+"information."
+msgstr ""
+"クライアントから送られる ``no-cache`` ヘッダーはどんなオブジェクトもキャッ"
+"シュから直接返すべきではないということを Traffic Server に示します。従って、"
+"Traffic Server は常にオリジンサーバーからオブジェクトを取得します。 Traffic "
+"Server をクライアントからの ``no-cache`` ヘッダーを無視するように設定するこ"
+"ともできます。詳細は `クライアントの no-cache ヘッダーを無視する Traffic "
+"Server の設定`_ を参照してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:216
+msgid ""
+"The ``max-age`` header, sent by servers, is compared to the object age. If "
+"the age is less than ``max-age``, then the object is fresh and can be "
+"served."
+msgstr ""
+"サーバーから送られる ``max-age`` ヘッダーはオブジェクトのキャッシュされてい"
+"る時間と比較されます。この時間が ``max-age`` よりも少ない場合、オブジェクト"
+"はフレッシュであり配信されます。"
+
+#: ../../admin/http-proxy-caching.en.rst:220
+msgid ""
+"The ``min-fresh`` header, sent by clients, is an **acceptable freshness "
+"tolerance**. This means that the client wants the object to be at least "
+"this fresh. Unless a cached object remains fresh at least this long in the "
+"future, it is revalidated."
+msgstr ""
+"クライアントからの ``min-fresh`` ヘッダーは **受け入れることが許容できる新鮮"
+"さ** です。これはクライアントが少なくとも指定された程度新鮮であることを望ん"
+"でいるということを意味します。将来、キャッシュされたオブジェクトがこの長さの"
+"新鮮さを失った場合、再検証されます。"
+
+#: ../../admin/http-proxy-caching.en.rst:225
+msgid ""
+"The ``max-stale`` header, sent by clients, permits Traffic Server to serve "
+"stale objects provided they are not too old. Some browsers might be willing "
+"to take slightly stale objects in exchange for improved performance, "
+"especially during periods of poor Internet availability."
+msgstr ""
+"クライアントからの ``max-stale`` ヘッダーは Traffic Server に古すぎない失効"
+"したオブジェクトを配信することを許可します。いくつかのブラウザーは特に貧弱な"
+"インターネット環境にあるような場合パフォーマンスを向上させるため、わずかに失"
+"効したオブジェクトを受け取ることを望むかもしれません。"
+
+#: ../../admin/http-proxy-caching.en.rst:231
+msgid ""
+"Traffic Server applies ``Cache-Control`` servability criteria ***after*** "
+"HTTP freshness criteria. For example, an object might be considered fresh "
+"but will not be served if its age is greater than its ``max-age``."
+msgstr ""
+"Traffic Server は ``Cache-Control`` を HTTP の新鮮さの基準の ***後に*** 配信"
+"可能性の基準に適用します。例えば、あるオブジェクトが新鮮だと考えられる場合で"
+"も、経過時間が ``max-age`` よりも大きいければ、それは配信されません。"
+
+#: ../../admin/http-proxy-caching.en.rst:237
+msgid "Revalidating HTTP Objects"
+msgstr "HTTP オブジェクトの再検証"
+
+#: ../../admin/http-proxy-caching.en.rst:239
+msgid ""
+"When a client requests an HTTP object that is stale in the cache, Traffic "
+"Server revalidates the object. A **revalidation** is a query to the origin "
+"server to check if the object is unchanged. The result of a revalidation is "
+"one of the following:"
+msgstr ""
+"クライアントがキャッシュの中で新鮮ではなくなった HTTP オブジェクトをリクエス"
+"トした際、Traffic Server はそのオブジェクトを再検証します。**再検証** はオリ"
+"ジンサーバーへオブジェクトが変更されているかどうかを確認する問い合わせです。"
+"再検証の結果は次のいずれかです。"
+
+#: ../../admin/http-proxy-caching.en.rst:244
+msgid ""
+"If the object is still fresh, then Traffic Server resets its freshness "
+"limit and serves the object."
+msgstr ""
+"オブジェクトが依然として新鮮な場合、Traffic Server はフレッシュネスリミット"
+"をリセットして、そのオブジェクトを配信します。"
+
+#: ../../admin/http-proxy-caching.en.rst:247
+msgid ""
+"If a new copy of the object is available, then Traffic Server caches the "
+"new object (thereby replacing the stale copy) and simultaneously serves the "
+"object to the client."
+msgstr ""
+"オブジェクトの新しいコピーが有効な場合、Traffic Server は新しいオブジェクト"
+"をキャッシュします。(従って、新鮮ではないコピーは置き換えられます)また、同時"
+"にオブジェクトをクライアントに配信します。"
+
+#: ../../admin/http-proxy-caching.en.rst:251
+msgid ""
+"If the object no longer exists on the origin server, then Traffic Server "
+"does not serve the cached copy."
+msgstr ""
+"オブジェクトがオリジンサーバー上に存在しない場合、Traffic Server はキャッ"
+"シュしたコピーを配信しません。"
+
+#: ../../admin/http-proxy-caching.en.rst:254
+msgid ""
+"If the origin server does not respond to the revalidation query, then "
+"Traffic Server serves the stale object along with a ``111 Revalidation "
+"Failed`` warning."
+msgstr ""
+"オリジンサーバーが再検証の問い合わせに応答しない場合、Traffic Server は "
+"``111 Revalidation Failed`` 警告と共に新鮮ではないオブジェクトを配信します。"
+
+#: ../../admin/http-proxy-caching.en.rst:258
+msgid ""
+"By default, Traffic Server revalidates a requested HTTP object in the cache "
+"if it considers the object to be stale. Traffic Server evaluates object "
+"freshness as described in `HTTP Object Freshness`_. You can reconfigure how "
+"Traffic Server evaluates freshness by selecting one of the following "
+"options:"
+msgstr ""
+"デフォルトでは Traffic Server はリクエストされた HTTP オブジェクトが新鮮では"
+"ないと考えられる場合に再検証します。Traffic Server のオブジェクトの新鮮さの"
+"評価については `HTTP オブジェクトの新鮮さ`_ で述べられています。次のオプショ"
+"ンの一つを選ぶことによって、 Traffic Server が新鮮さを評価する方法を再設定す"
+"ることができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:264
+msgid ""
+"Traffic Server considers all HTTP objects in the cache to be stale: always "
+"revalidate HTTP objects in the cache with the origin server."
+msgstr ""
+"Traffic Server はキャッシュしている全ての HTTP オブジェクトが新鮮ではないと"
+"考えます。つまり、常にキャッシュの中の HTTP オブジェクトをオリジンサーバーへ"
+"再検証します。"
+
+#: ../../admin/http-proxy-caching.en.rst:266
+msgid ""
+"Traffic Server considers all HTTP objects in the cache to be fresh: never "
+"revalidate HTTP objects in the cache with the origin server."
+msgstr ""
+"Traffic Server はキャッシュしている全ての HTTP オブジェクトを新鮮であると考"
+"えます。つまり、オリジンサーバーへ HTTP オブジェクトを再検証することはありま"
+"せん。"
+
+#: ../../admin/http-proxy-caching.en.rst:268
+msgid ""
+"Traffic Server considers all HTTP objects without ``Expires`` or ``Cache-"
+"control`` headers to be stale: revalidate all HTTP objects without "
+"``Expires`` or ``Cache-Control`` headers."
+msgstr ""
+"Traffic Server は ``Expires`` や ``Cache-Control`` ヘッダーを持っていない "
+"HTTP オブジェクトを新鮮ではないと考えます。つまり、常に ``Expires`` や "
+"``Cache-Control`` ヘッダーのない HTTP オブジェクトを再検証します。"
+
+#: ../../admin/http-proxy-caching.en.rst:272
+msgid ""
+"To configure how Traffic Server revalidates objects in the cache, you can "
+"set specific revalidation rules in :file:`cache.config`."
+msgstr ""
+"Traffic Server がキャッシュしているオブジェクトを再検証する方法を設定するに"
+"は :file:`cache.config` に特定の再検証のルールを設定してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:275
+msgid "To configure revalidation options"
+msgstr "再検証のオプションを設定するには"
+
+#: ../../admin/http-proxy-caching.en.rst:277
+#: ../../admin/http-proxy-caching.en.rst:490
+#: ../../admin/http-proxy-caching.en.rst:606
+msgid "Edit the following variable in :file:`records.config`"
+msgstr ":file:`records.config` の次の変数を変更してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:279
+msgid ":ts:cv:`proxy.config.http.cache.when_to_revalidate`"
+msgstr ":ts:cv:`proxy.config.http.cache.when_to_revalidate`"
+
+#: ../../admin/http-proxy-caching.en.rst:285
+msgid "Scheduling Updates to Local Cache Content"
+msgstr "ローカルキャッシュコンテンツの計画アップデート"
+
+#: ../../admin/http-proxy-caching.en.rst:287
+msgid ""
+"To further increase performance and to ensure that HTTP objects are fresh "
+"in the cache, you can use the **Scheduled Update** option. This configures "
+"Traffic Server to load specific objects into the cache at scheduled times. "
+"You might find this especially beneficial in a reverse proxy setup, where "
+"you can *preload* content you anticipate will be in demand."
+msgstr ""
+"パフォーマンスをはるかに向上させるため、またキャッシュしている HTTP オブジェ"
+"クトが新鮮であることを確実にするために、**計画アップデート** オプションを使"
+"うことができます。これは特定のオブジェクトをスケジュールされた時間にキャッ"
+"シュに読み込むように Traffic Server を設定します。リバースプロキシーをセット"
+"アップしている際に、 負荷が心配されるコンテンツを *事前に読み込む* ことがで"
+"きるという点で特に役に立つことに気づくかもしれません。"
+
+#: ../../admin/http-proxy-caching.en.rst:294
+msgid ""
+"To use the Scheduled Update option, you must perform the following tasks."
+msgstr ""
+"計画的アップデートオプションを使うためには次のタスクを行う必要があります。"
+
+#: ../../admin/http-proxy-caching.en.rst:297
+msgid ""
+"Specify the list of URLs that contain the objects you want to schedule for "
+"update,"
+msgstr "スケジュール通りにアップデートしたいオブジェクトを含む URL のリスト"
+
+#: ../../admin/http-proxy-caching.en.rst:299
+msgid "the time the update should take place,"
+msgstr "アップデートが実行されるべき時間"
+
+#: ../../admin/http-proxy-caching.en.rst:300
+msgid "and the recursion depth for the URL."
+msgstr "URL の再帰する深さを指定"
+
+#: ../../admin/http-proxy-caching.en.rst:301
+msgid ""
+"Enable the scheduled update option and configure optional retry settings."
+msgstr "計画アップデートオプションの有効化とオプショナルなリトライ設定の指定"
+
+#: ../../admin/http-proxy-caching.en.rst:304
+msgid ""
+"Traffic Server uses the information you specify to determine URLs for which "
+"it is responsible. For each URL, Traffic Server derives all recursive URLs "
+"(if applicable) and then generates a unique URL list. Using this list, "
+"Traffic Server initiates an HTTP ``GET`` for each unaccessed URL. It "
+"ensures that it remains within the user-defined limits for HTTP concurrency "
+"at any given time. The system logs the completion of all HTTP ``GET`` "
+"operations so you can monitor the performance of this feature."
+msgstr ""
+"Traffic Server は責任を持つ URL を決定するために、指定された情報を使います。"
+"各 URL に対して Traffic Server は (適用可能であれば) 全ての再帰的な URL を作"
+"成し、ユニークな URL リストを生成します。このリストをもとに、Traffic Server "
+"はまだアクセスされていない各 URL に対して HTTP ``GET`` リクエストを開始しま"
+"す。このリクエストは常に ユーザーが定義した HTTP の並列度の範囲に収まること"
+"が保証されています。システムは全ての HTTP ``GET`` オペレーションの完了を記録"
+"します。よって、この機能のパフォーマンスを監視することができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:313
+msgid ""
+"Traffic Server also provides a **Force Immediate Update** option that "
+"enables you to update URLs immediately without waiting for the specified "
+"update time to occur. You can use this option to test your scheduled update "
+"configuration (refer to `Forcing an Immediate Update`_)."
+msgstr ""
+"Traffic Server は **強制即時アップデート** オプションも提供します。これは "
+"URL を指定されたアップデート時間になるまで待つことなく、すぐにアップデートす"
+"ることを可能にします。このオプションを計画アップデートの設定をテストするため"
+"に使うことができます。( `即時アップデートの強制`_ を参照してください)"
+
+#: ../../admin/http-proxy-caching.en.rst:319
+msgid "Configuring the Scheduled Update Option"
+msgstr "計画アップデートオプションの設定"
+
+#: ../../admin/http-proxy-caching.en.rst:321
+msgid "To configure the scheduled update option"
+msgstr "計画アップデートオプションを設定するためには"
+
+#: ../../admin/http-proxy-caching.en.rst:323
+msgid ""
+"Edit :file:`update.config` to enter a line in the file for each URL you "
+"want to update."
+msgstr ""
+":file:`update.config` にアップデートしたい URL を一行毎に書いてください"
+
+#: ../../admin/http-proxy-caching.en.rst:325
+#: ../../admin/http-proxy-caching.en.rst:346
+#: ../../admin/http-proxy-caching.en.rst:675
+msgid "Edit the following variables"
+msgstr "次の変数を変更してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:327
+msgid ":ts:cv:`proxy.config.update.enabled`"
+msgstr ":ts:cv:`proxy.config.update.enabled`"
+
+#: ../../admin/http-proxy-caching.en.rst:328
+msgid ":ts:cv:`proxy.config.update.retry_count`"
+msgstr ":ts:cv:`proxy.config.update.retry_count`"
+
+#: ../../admin/http-proxy-caching.en.rst:329
+msgid ":ts:cv:`proxy.config.update.retry_interval`"
+msgstr ":ts:cv:`proxy.config.update.retry_interval`"
+
+#: ../../admin/http-proxy-caching.en.rst:330
+msgid ":ts:cv:`proxy.config.update.concurrent_updates`"
+msgstr ":ts:cv:`proxy.config.update.concurrent_updates`"
+
+#: ../../admin/http-proxy-caching.en.rst:336
+msgid "Forcing an Immediate Update"
+msgstr "即時アップデートの強制"
+
+#: ../../admin/http-proxy-caching.en.rst:338
+msgid ""
+"Traffic Server provides a **Force Immediate Update** option that enables "
+"you to immediately verify the URLs listed in :file:`update.config`. The "
+"Force Immediate Update option disregards the offset hour and interval set "
+"in :file:`update.config` and immediately updates the URLs listed."
+msgstr ""
+"Traffic Server は **強制即時アップデート** オプションを提供しています。これ"
+"は :file:`update.config` ファイルにリストされた URL を即時に検証す ることを"
+"可能にします。強制即時アップデートオプションは :file:`update.config` ファイ"
+"ルに設定されたオフセット時間と間隔を無視し、リストされた URL を即時的にアッ"
+"プデートします。"
+
+#: ../../admin/http-proxy-caching.en.rst:344
+msgid "To configure the Force Immediate Update option"
+msgstr "強制即時アップデートオプション設定"
+
+#: ../../admin/http-proxy-caching.en.rst:348
+msgid ":ts:cv:`proxy.config.update.force`"
+msgstr ":ts:cv:`proxy.config.update.force`"
+
+#: ../../admin/http-proxy-caching.en.rst:349
+msgid "Make sure :ts:cv:`proxy.config.update.enabled` is set to 1."
+msgstr ""
+":ts:cv:`proxy.config.update.enabled` に 1 が設定されていることを確認してくだ"
+"さい。"
+
+#: ../../admin/http-proxy-caching.en.rst:351
+#: ../../admin/http-proxy-caching.en.rst:382
+#: ../../admin/http-proxy-caching.en.rst:436
+#: ../../admin/http-proxy-caching.en.rst:494
+#: ../../admin/http-proxy-caching.en.rst:533
+#: ../../admin/http-proxy-caching.en.rst:557
+#: ../../admin/http-proxy-caching.en.rst:590
+#: ../../admin/http-proxy-caching.en.rst:610
+#: ../../admin/http-proxy-caching.en.rst:635
+#: ../../admin/http-proxy-caching.en.rst:652
+#: ../../admin/http-proxy-caching.en.rst:682
+#: ../../admin/http-proxy-caching.en.rst:708
+#: ../../admin/http-proxy-caching.en.rst:735
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ""
+"設定変更を適用するために :option:`traffic_line -x` を実行してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:356
+msgid ""
+"When you enable the Force Immediate Update option, Traffic Server "
+"continually updates the URLs specified in :file:`update.config` until you "
+"disable the option. To disable the Force Immediate Update option, set :ts:"
+"cv:`proxy.config.update.force` to ``0`` (zero)."
+msgstr ""
+"強制即時アップデートオプションを有効にした場合、Traffic Server はこのオプ"
+"ションが無効化されるまで :file:`update.config` ファイルに指定された URL を"
+"アップデートし続けます。強制即時アップデートオプションを無効化するために"
+"は、 :ts:cv:`proxy.config.update.force` 変数を ``0`` (ゼロ) にしてください。"
+
+#: ../../admin/http-proxy-caching.en.rst:361
+msgid "Pushing Content into the Cache"
+msgstr "コンテンツのキャッシュへのプッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:363
+msgid ""
+"Traffic Server supports the HTTP ``PUSH`` method of content delivery. Using "
+"HTTP ``PUSH``, you can deliver content directly into the cache without "
+"client requests."
+msgstr ""
+"Traffic Server はコンテンツ配信に HTTP ``PUSH`` メソッドをサポートして いま"
+"す。HTTP ``PUSH`` を使用すると、クライアントからのリクエスト無しに直接コンテ"
+"ンツをキャッシュの中に入れることができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:368
+msgid "Configuring Traffic Server for PUSH Requests"
+msgstr "PUSH リクエスト用の Traffic Server の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:370
+msgid ""
+"Before you can deliver content into your cache using HTTP ``PUSH``, you "
+"must configure Traffic Server to accept ``PUSH`` requests."
+msgstr ""
+"HTTP ``PUSH`` を使用してコンテンツをキャッシュの中に入れる前に、Traffic "
+"Server が ``PUSH`` リクエストを受け入れるように設定する必要があります。"
+
+#: ../../admin/http-proxy-caching.en.rst:373
+msgid "To configure Traffic Server to accept ``PUSH`` requests"
+msgstr "Traffic Server が ``PUSH`` リクエストを受け入れるように設定するには"
+
+#: ../../admin/http-proxy-caching.en.rst:375
+msgid "Edit :file:`ip_allow.config` to allow ``PUSH``."
+msgstr ":file:`ip_allow.config` を変更して ``PUSH`` を許可してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:377
+msgid ""
+"Edit the following variable in :file:`records.config`, enable the "
+"push_method."
+msgstr ""
+":file:`records.config` の次の変数を編集して、push_method を有効にしてくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:380
+msgid ":ts:cv:`proxy.config.http.push_method_enabled`"
+msgstr ":ts:cv:`proxy.config.http.push_method_enabled`"
+
+#: ../../admin/http-proxy-caching.en.rst:386
+msgid "Understanding HTTP PUSH"
+msgstr "HTTP PUSH の理解"
+
+#: ../../admin/http-proxy-caching.en.rst:388
+msgid ""
+"``PUSH`` uses the HTTP 1.1 message format. The body of a ``PUSH`` request "
+"contains the response header and response body that you want to place in "
+"the cache. The following is an example of a ``PUSH`` request::"
+msgstr ""
+"``PUSH`` は HTTP 1.1 メッセージフォーマットを使用します。 ``PUSH`` リクエス"
+"トのボディはキャッシュに入れたいレスポンスヘッダーとレスポンスボディを含みま"
+"す。下記は ``PUSH`` リクエストの例です。"
+
+#: ../../admin/http-proxy-caching.en.rst:405
+msgid ""
+"Your header must include ``Content-length`` - ``Content-length`` must "
+"include both ``header`` and ``body byte count``."
+msgstr ""
+"ヘッダーは ``Contetnt-length`` を含んでいる必要があります - ``Contetn-"
+"length`` は ``header`` と ``body byte count`` の両方を含む必 要があります。"
+
+#: ../../admin/http-proxy-caching.en.rst:409
+msgid "Tools that will help manage pushing"
+msgstr "プッシュを手助けするツール"
+
+#: ../../admin/http-proxy-caching.en.rst:411
+msgid ""
+"There is a perl script for pushing, :program:`tspush`, which can help you "
+"understanding how to write scripts for pushing content yourself."
+msgstr ""
+"プッシュするための perl スクリプトがあります。:program:`tspush` です。これは"
+"コンテンツをプッシュするためのスクリプトの書き方を理解することに役立ちます。"
+
+#: ../../admin/http-proxy-caching.en.rst:416
+msgid "Pinning Content in the Cache"
+msgstr "コンテンツのキャッシュへのピン留め"
+
+#: ../../admin/http-proxy-caching.en.rst:418
+msgid ""
+"The **Cache Pinning Option** configures Traffic Server to keep certain HTTP "
+"objects in the cache for a specified time. You can use this option to "
+"ensure that the most popular objects are in cache when needed and to "
+"prevent Traffic Server from deleting important objects. Traffic Server "
+"observes ``Cache-Control`` headers and pins an object in the cache only if "
+"it is indeed cacheable."
+msgstr ""
+"**キャッシュのピン留めオプション** は特定の時間の間 HTTP オブジェクトを"
+"キャッシュに確実に入れておくように Traffic Server を設定します。最もポピュ"
+"ラーなオブジェクトが必要とされるときにキャッシュされていることと、 Traffic "
+"Server が重要なオブジェクトを削除することを防ぐことを確実にしたい際にこのオ"
+"プションが使えます。Traffic Server は ``Cache-Control`` ヘッダーを監視し、本"
+"当にキャッシュ可能な場合にオブジェクトをキャッシュに留めます。"
+
+#: ../../admin/http-proxy-caching.en.rst:425
+msgid "To set cache pinning rules"
+msgstr "キャッシュを留めるルールを設定するためには"
+
+#: ../../admin/http-proxy-caching.en.rst:427
+msgid "Make sure the following variable in :file:`records.config` is set"
+msgstr ""
+":file:`records.config` の次の変数がセットされていることを確認してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:429
+msgid ":ts:cv:`proxy.config.cache.permit.pinning`"
+msgstr ":ts:cv:`proxy.config.cache.permit.pinning`"
+
+#: ../../admin/http-proxy-caching.en.rst:431
+msgid ""
+"Add a rule in :file:`cache.config` for each URL you want Traffic Server to "
+"pin in the cache. For example::"
+msgstr ""
+"Traffic Server にキャッシュに留めさせたい URL 毎に :file:`cache.config` に"
+"ルールを追加してください。例:"
+
+#: ../../admin/http-proxy-caching.en.rst:440
+msgid "To Cache or Not to Cache?"
+msgstr "キャッシュするかキャッシュしないか?"
+
+#: ../../admin/http-proxy-caching.en.rst:442
+msgid ""
+"When Traffic Server receives a request for a web object that is not in the "
+"cache, it retrieves the object from the origin server and serves it to the "
+"client. At the same time, Traffic Server checks if the object is cacheable "
+"before storing it in its cache to serve future requests."
+msgstr ""
+"Traffic Server がキャッシュしていないウェブオブジェクトへのリクエストを受け"
+"取った際、オリジンサーバーからオブジェクトを回収し、クライアントに配信しま"
+"す。その際に、Traffic Server は将来のリクエストに備えてキャッシュに保存する"
+"前に、オブジェクトがキャッシュ可能かどうか確認します。"
+
+#: ../../admin/http-proxy-caching.en.rst:448
+msgid "Caching HTTP Objects"
+msgstr "HTTP オブジェクトのキャッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:450
+msgid ""
+"Traffic Server responds to caching directives from clients and origin "
+"servers, as well as directives you specify through configuration options "
+"and files."
+msgstr ""
+"Traffic Server は設定オプションやファイルに指定したディレクティブと同じよう"
+"に、クライアントやオリジンサーバーからのキャッシュのディレクティブに反応しま"
+"す。"
+
+#: ../../admin/http-proxy-caching.en.rst:455
+msgid "Client Directives"
+msgstr "クライアントディレクティブ"
+
+#: ../../admin/http-proxy-caching.en.rst:457
+msgid ""
+"By default, Traffic Server does *not* cache objects with the following "
+"**request headers**:"
+msgstr ""
+"デフォルトではTraffic Server は次の **リクエストヘッダー** を持つオブジェク"
+"トをキャッシュ *しません* 。"
+
+#: ../../admin/http-proxy-caching.en.rst:460
+msgid "``Authorization``: header"
+msgstr "``Authorization``: ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:462
+#: ../../admin/http-proxy-caching.en.rst:503
+msgid "``Cache-Control: no-store`` header"
+msgstr "``Cache-Control: no-store`` ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:464
+msgid "``Cache-Control: no-cache`` header"
+msgstr "``Cache-Control: no-cache`` ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:466
+msgid ""
+"To configure Traffic Server to ignore the ``Cache-Control: no-cache`` "
+"header, refer to `Configuring Traffic Server to Ignore Client no-cache "
+"Headers`_"
+msgstr ""
+"``Cache-Control: no-cache`` ヘッダーを無視するように Traffic Server を設定す"
+"るには `クライアントの no-cache ヘッダーを無視する Traffic Server の設定`_ "
+"を参照してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:469
+msgid "``Cookie``: header (for text objects)"
+msgstr "``Cookie``: ヘッダー (テキストオブジェクト用)"
+
+#: ../../admin/http-proxy-caching.en.rst:471
+msgid ""
+"By default, Traffic Server caches objects served in response to requests "
+"that contain cookies (unless the object is text). You can configure Traffic "
+"Server to not cache cookied content of any type, cache all cookied content, "
+"or cache cookied content that is of image type only. For more information, "
+"refer to `Caching Cookied Objects`_."
+msgstr ""
+"デフォルトでは、クッキーを含むリクエストへ返されるオブジェクト(テキストを除"
+"くオブジェクト) を Traffic Server はキャッシュします。Traffic Server を次の"
+"用に設定することができます。クッキーを持ったどんなタイプのコンテンツでも"
+"キャッシュしない、クッキーを持った全てのコンテンツをキャッシュする、もしくは"
+"クッキーを持った画像だけをキャッシュする。より詳しくは `クッキーオブジェクト"
+"のキャッシュ`_ を参照してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:478
+msgid "Configuring Traffic Server to Ignore Client no-cache Headers"
+msgstr "クライアントの no-cache ヘッダーを無視する Traffic Server の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:480
+msgid ""
+"By default, Traffic Server strictly observes client ``Cache-Control: no-"
+"cache`` directives. If a requested object contains a ``no-cache`` header, "
+"then Traffic Server forwards the request to the origin server even if it "
+"has a fresh copy in cache. You can configure Traffic Server to ignore "
+"client ``no-cache`` directives such that it ignores ``no-cache`` headers "
+"from client requests and serves the object from its cache."
+msgstr ""
+"デフォルトでは Traffic Server はクライアントの ``Cache-Control: no-cache`` "
+"ディレクティブを正確に守ります。リクエストされたオブジェクトが ``no-cache`` "
+"を含んでいる場合、Traffic Server はキャッシュのコピーが新鮮であったとして"
+"も、オリジンサーバーにリクエストを転送します。Traffic Server がクライアント"
+"からの ``no-cache`` ディレクティブを無視するように設定することもできます。こ"
+"の場合、クライアントからのリクエストの ``no-cache`` ヘッダーを無視して、"
+"キャッシュからオブジェクトを配信します。"
+
+#: ../../admin/http-proxy-caching.en.rst:488
+msgid "To configure Traffic Server to ignore client ``no-cache`` headers"
+msgstr "``no-cache`` ヘッダーを無視するように Traffic Server を設定するには"
+
+#: ../../admin/http-proxy-caching.en.rst:492
+msgid ":ts:cv:`proxy.config.http.cache.ignore_client_no_cache`"
+msgstr ":ts:cv:`proxy.config.http.cache.ignore_client_no_cache`"
+
+#: ../../admin/http-proxy-caching.en.rst:498
+msgid "Origin Server Directives"
+msgstr "オリジンサーバーディレクティブ"
+
+#: ../../admin/http-proxy-caching.en.rst:500
+msgid ""
+"By default, Traffic Server does *not* cache objects with the following "
+"**response headers**:"
+msgstr ""
+"デフォルトでは Traffic Server は次の **レスポンスヘッダー** を持つようなオブ"
+"ジェクトをキャッシュ *しません*。"
+
+#: ../../admin/http-proxy-caching.en.rst:504
+msgid "``Cache-Control: private`` header"
+msgstr "``Cache-Control: private`` ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:505
+msgid "``WWW-Authenticate``: header"
+msgstr "``WWW-Authenticate``: ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:507
+msgid ""
+"To configure Traffic Server to ignore ``WWW-Authenticate`` headers, refer "
+"to `Configuring Traffic Server to Ignore WWW-Authenticate Headers`_."
+msgstr ""
+"``WWW-Authenticate`` ヘッダーを無視するように Traffic Server を設定 するに"
+"は `WWW-Authenticate ヘッダーを無視する Traffic Server の設定`_ を参照してく"
+"ださい。"
+
+#: ../../admin/http-proxy-caching.en.rst:510
+msgid "``Set-Cookie``: header"
+msgstr "``Set-Cookie``: ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:511
+msgid "``Cache-Control: no-cache`` headers"
+msgstr "``Cache-Control: no-cache`` ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:513
+msgid ""
+"To configure Traffic Server to ignore ``no-cache`` headers, refer to "
+"`Configuring Traffic Server to Ignore Server no-cache Headers`_."
+msgstr ""
+"``no-cache`` ヘッダーを無視するように Traffic Server を設定するには `サー"
+"バーの no-cache ヘッダーを無視する Traffic Server の設定`_ を参照してくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:516
+msgid "``Expires``: header with value of 0 (zero) or a past date"
+msgstr "値が 0 (ゼロ)もしくは過去の日付の ``Expires`` ヘッダー"
+
+#: ../../admin/http-proxy-caching.en.rst:519
+msgid "Configuring Traffic Server to Ignore Server no-cache Headers"
+msgstr "サーバーの no-cache ヘッダーを無視する Traffic Server の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:521
+msgid ""
+"By default, Traffic Server strictly observes ``Cache-Control: no-cache`` "
+"directives. A response from an origin server with a ``no-cache`` header is "
+"not stored in the cache and any previous copy of the object in the cache is "
+"removed. If you configure Traffic Server to ignore ``no-cache`` headers, "
+"then Traffic Server also ignores ``no-store`` headers. The default behavior "
+"of observing ``no-cache`` directives is appropriate in most cases."
+msgstr ""
+"デフォルトでは Traffic Server は ``Cache-Control: no-cache`` ディレクティブ"
+"を正確に守ります。``no-cache`` ヘッダーが付いているオリジンサーバーからのレ"
+"スポンスはキャッシュに保存されません。また、以前キャッシュされたオブジェクト"
+"のコピーは削除されます。 ``no-cache`` ヘッダーを無視するように Traffic "
+"Server を設定した場合、Traffic Server は ``no-store`` ヘッダーも無視します。"
+"``no-cache`` ディレクティブを守るデフォルトの振る舞いはほとんどの場合に適切"
+"です。"
+
+#: ../../admin/http-proxy-caching.en.rst:529
+msgid "To configure Traffic Server to ignore server ``no-cache`` headers"
+msgstr ""
+"サーバーの ``no-cache`` ヘッダーを無視するように Traffic Server を設定するに"
+"は"
+
+#: ../../admin/http-proxy-caching.en.rst:531
+msgid ""
+"Edit the variable :ts:cv:`proxy.config.http.cache.ignore_server_no_cache`"
+msgstr ""
+":ts:cv:`proxy.config.http.cache.ignore_server_no_cache` 変数を変更してくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:537
+msgid "Configuring Traffic Server to Ignore WWW-Authenticate Headers"
+msgstr "WWW-Authenticate ヘッダーを無視する Traffic Server の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:539
+msgid ""
+"By default, Traffic Server does not cache objects that contain ``WWW-"
+"Authenticate`` response headers. The ``WWW-Authenticate`` header contains "
+"authentication parameters the client uses when preparing the authentication "
+"challenge response to an origin server."
+msgstr ""
+"デフォルトでは Traffic Server は ``WWW-Authenticate`` レスポンスヘッダーを含"
+"むオブジェクトをキャッシュしません。 ``WWW-Authenticate`` ヘッダーはクライア"
+"ントがオリジンサーバーへのチャレンジレスポンス認証の際に使う認証パラメーター"
+"を含んでいます。"
+
+#: ../../admin/http-proxy-caching.en.rst:544
+msgid ""
+"When you configure Traffic Server to ignore origin server ``WWW-"
+"Authenticate`` headers, all objects with ``WWW-Authenticate`` headers are "
+"stored in the cache for future requests. However, the default behavior of "
+"not caching objects with ``WWW-Authenticate`` headers is appropriate in "
+"most cases. Only configure Traffic Server to ignore server ``WWW-"
+"Authenticate`` headers if you are knowledgeable about HTTP 1.1."
+msgstr ""
+"オリジンサーバーの ``WWW-Authenticate`` ヘッダーを無視するように Traffic "
+"Server を設定した場合、 ``WWW-Authenticate`` ヘッダーを持つ全てのオブジェク"
+"トは次のリクエストの為にキャッシュに保存されます。しかし、 ``WWW-"
+"Authenticate`` ヘッダーを持つオブジェクトをキャッシュしないデフォルトの振る"
+"舞いは多くの場合に適切です。 ``WWW-Authenticate`` ヘッダーを無視するように "
+"Traffic Server を設定するのは HTTP 1.1 に精通してる場合にだけにしてくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:552
+msgid ""
+"To configure Traffic Server to ignore server ``WWW-Authenticate`` headers"
+msgstr ""
+"``WWW-Authenticate`` ヘッダーを無視するように Traffic Server を設定するには"
+
+#: ../../admin/http-proxy-caching.en.rst:555
+msgid ""
+"Edit the variable :ts:cv:`proxy.config.http.cache.ignore_authentication`"
+msgstr ""
+":ts:cv:`proxy.config.http.cache.ignore_authentication` 変数を変更してくださ"
+"い。"
+
+#: ../../admin/http-proxy-caching.en.rst:561
+msgid "Configuration Directives"
+msgstr "設定ディレクティブ"
+
+#: ../../admin/http-proxy-caching.en.rst:563
+msgid ""
+"In addition to client and origin server directives, Traffic Server responds "
+"to directives you specify through configuration options and files."
+msgstr ""
+"クライアントやオリジンサーバーのディレクティブに加えて、Traffic Server は設"
+"定オプションやファイルを通じて設定したディレクティブにも反応します。"
+
+#: ../../admin/http-proxy-caching.en.rst:567
+msgid "You can configure Traffic Server to do the following:"
+msgstr "次のように Traffic Server を設定することができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:569
+msgid ""
+"*Not* cache any HTTP objects (refer to `Disabling HTTP Object Caching`_)."
+msgstr ""
+"どんな HTTP オブジェクトもキャッシュ *しない* ( `HTTP オブジェクトキャッシュ"
+"の無効化`_ 参照)"
+
+#: ../../admin/http-proxy-caching.en.rst:570
+msgid ""
+"Cache **dynamic content** - that is, objects with URLs that end in ``.asp`` "
+"or contain a question mark (``?``), semicolon (**``;``**), or **``cgi``**. "
+"For more information, refer to `Caching Dynamic Content`_."
+msgstr ""
+"**動的コンテンツ** をキャッシュする - ``.asp`` で終わったり、クエスチョン"
+"マーク (``?``)、セミコロン (``;``) や ``cgi`` を含んでいたりする URL のオブ"
+"ジェクト。より詳しくは `動的コンテンツのキャッシュ`_ を参照してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:573
+msgid ""
+"Cache objects served in response to the ``Cookie:`` header (refer to "
+"`Caching Cookied Objects`_."
+msgstr ""
+"``Cookie:`` ヘッダーに対して返されるオブジェクトをキャッシュする ( `クッキー"
+"オブジェクトのキャッシュ`_ 参照)"
+
+#: ../../admin/http-proxy-caching.en.rst:575
+msgid "Observe ``never-cache`` rules in the :file:`cache.config` file."
+msgstr ":file:`cache.config` ファイルの ``never-cache`` ルールに従う"
+
+#: ../../admin/http-proxy-caching.en.rst:578
+msgid "Disabling HTTP Object Caching"
+msgstr "HTTP オブジェクトキャッシュの無効化"
+
+#: ../../admin/http-proxy-caching.en.rst:580
+msgid ""
+"By default, Traffic Server caches all HTTP objects except those for which "
+"you have set ``never-cache`` as :ref:`action rules <cache-config-format-"
+"action>` in the :file:`cache.config` file. You can disable HTTP object "
+"caching so that all HTTP objects are served directly from the origin server "
+"and never cached, as detailed below."
+msgstr ""
+"デフォルトでは Traffic Server は :file:`cache.config` ファイルに設定した "
+"``never-cache`` :ref:`アクションルール <cache-config-format-action>` を除く"
+"全ての HTTP オブジェクトをキャッシュします。後述するように　HTTP オブジェク"
+"トがオリジンサーバーから直接配信され、決してキャッシュされな いように HTTP "
+"オブジェクトのキャッシュを無効化することができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:586
+msgid "To disable HTTP object caching manually"
+msgstr "HTTP オブジェクトを手動で無効化するには"
+
+#: ../../admin/http-proxy-caching.en.rst:588
+msgid "Set the variable :ts:cv:`proxy.config.http.enabled` to ``0``."
+msgstr ":ts:cv:`proxy.config.http.enabled` 変数に ``0`` を設定してください。."
+
+#: ../../admin/http-proxy-caching.en.rst:594
+msgid "Caching Dynamic Content"
+msgstr "動的コンテンツのキャッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:596
+msgid ""
+"A URL is considered **dynamic** if it ends in **``.asp``** or contains a "
+"question mark (``?``), a semicolon (``;``), or ``cgi``. By default, Traffic "
+"Server caches dynamic content. You can configure the system to ignore "
+"dyanamic looking content, although this is recommended only if the content "
+"is *truely* dyanamic, but fails to advertise so with appropriate ``Cache-"
+"Control`` headers."
+msgstr ""
+"``.asp`` で終わったり、クエスチョンマーク (``?``)、セミコロン (``;``) や "
+"``cgi`` を含んでいたりする URL  は **動的** であると考えられます。デフォルト"
+"では Traffic Server は動的コンテンツをキャッシュします。コンテンツが *本当に"
+"* 動的である場合にだけ推奨されますが、適切な ``Cache-Control`` ヘッダーに"
+"よって伝えることができないとき、動的だと思われるコンテンツを無視するようにシ"
+"ステムを設定することができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:603
+msgid ""
+"To configure Traffic Server's cache behaviour in regard to dynamic content"
+msgstr "動的コンテンツに配慮した Traffic Server の振る舞いを設定するには"
+
+#: ../../admin/http-proxy-caching.en.rst:608
+msgid ":ts:cv:`proxy.config.http.cache.cache_urls_that_look_dynamic`"
+msgstr ":ts:cv:`proxy.config.http.cache.cache_urls_that_look_dynamic`"
+
+#: ../../admin/http-proxy-caching.en.rst:614
+msgid "Caching Cookied Objects"
+msgstr "クッキーオブジェクトのキャッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:618
+msgid ""
+"By default, Traffic Server caches objects served in response to requests "
+"that contain cookies. This is true for all types of objects except for "
+"text. Traffic Server does not cache cookied text content because object "
+"headers are stored along with the object, and personalized cookie header "
+"values could be saved with the object. With non-text objects, it is "
+"unlikely that personalized headers are delivered or used."
+msgstr ""
+"デフォルトではクッキーを含むリクエストに対するレスポンスとして配信されたオブ"
+"ジェクトを Traffic Server はキャッシュします。これはテキストを除いた全てのタ"
+"イプのオブジェクトについても同じです。Traffic Server はクッキーをもつテキス"
+"トコンテンツをキャッシュしません。それはオブジェクトのヘッダーはオブジェクト"
+"共に保存され、個人的なクッキーヘッダーの値もオブジェクトと共に保存されるため"
+"です。テキストではないオブジェクトの場合、個人的なヘッダーは配信されたり使わ"
+"れたりしません。"
+
+#: ../../admin/http-proxy-caching.en.rst:625
+msgid "You can reconfigure Traffic Server to:"
+msgstr "次のように Traffic Server を設定し直すことができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:627
+msgid "*Not* cache cookied content of any type."
+msgstr "クッキーを含む全てのコンテンツをキャッシュ *しない*"
+
+#: ../../admin/http-proxy-caching.en.rst:628
+msgid "Cache cookied content that is of image type only."
+msgstr "クッキーを含む画像のみキャッシュする"
+
+#: ../../admin/http-proxy-caching.en.rst:629
+msgid "Cache all cookied content regardless of type."
+msgstr "タイプを考慮せずクッキーを含む全てのコンテンツをキャッシュする"
+
+#: ../../admin/http-proxy-caching.en.rst:631
+msgid "To configure how Traffic Server caches cookied content"
+msgstr ""
+"クッキーを含むコンテンツをどのようにキャッシュするか Traffic Server を設定す"
+"るには"
+
+#: ../../admin/http-proxy-caching.en.rst:633
+msgid ""
+"Edit the variable :ts:cv:`proxy.config.http.cache."
+"cache_responses_to_cookies`"
+msgstr ""
+":ts:cv:`proxy.config.http.cache.cache_responses_to_cookies` 変数を変更してく"
+"ださい。"
+
+#: ../../admin/http-proxy-caching.en.rst:639
+msgid "Forcing Object Caching"
+msgstr "オブジェクトの強制キャッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:641
+msgid ""
+"You can force Traffic Server to cache specific URLs (including dynamic "
+"URLs) for a specified duration, regardless of ``Cache-Control`` response "
+"headers."
+msgstr ""
+"``Cache-Control`` レスポンスヘッダーを無視して、特定の期間に特定の URL (動"
+"的 URL も含む) をキャッシュすることを Traffic Server に強制することができま"
+"す。"
+
+#: ../../admin/http-proxy-caching.en.rst:645
+msgid "To force document caching"
+msgstr "ドキュメントを強制的にキャッシュするには"
+
+#: ../../admin/http-proxy-caching.en.rst:647
+msgid ""
+"Add a rule for each URL you want Traffic Server to pin to the cache :file:"
+"`cache.config`::"
+msgstr ""
+"Traffic Server にキャッシュに留めさせたい URL 毎に :file:`cache.config` に"
+"ルールを追加してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:656
+msgid "Caching HTTP Alternates"
+msgstr "HTTP オブジェクトの代替のキャッシュ"
+
+#: ../../admin/http-proxy-caching.en.rst:658
+msgid ""
+"Some origin servers answer requests to the same URL with a variety of "
+"objects. The content of these objects can vary widely, according to whether "
+"a server delivers content for different languages, targets different "
+"browsers with different presentation styles, or provides different document "
+"formats (HTML, XML). Different versions of the same object are termed "
+"**alternates** and are cached by Traffic Server based on ``Vary`` response "
+"headers. You can specify additional request and response headers for "
+"specific ``Content-Type``\\s that Traffic Server will identify as "
+"alternates for caching. You can also limit the number of alternate versions "
+"of an object allowed in the cache."
+msgstr ""
+"いくつかの同一の URL へ複数のオブジェクトを回答するオリジンサーバーもありま"
+"す。これらのオブジェクトのコンテンツはサーバーが異なる言語ごとにコンテンツを"
+"配信したり、異なるブラウザ毎にプレゼンテーションスタイルを用意していたり、異"
+"なるドキュメントフォーマット(HTML, XML) を提供しているか等により、多岐にわた"
+"ります。同一オブジェクトの異なるバージョンは **代替** と呼ばれ、``Vary`` レ"
+"スポンスヘッダーに基づいて Traffic Server にキャッシュされます。Traffic "
+"Server がキャッシュする代替を判別する特別な ``Content-Type`` をリクエストや"
+"レスポンスヘッダに追加することができます。キャッシュする代替バージョンの数を"
+"制限することもできます。"
+
+#: ../../admin/http-proxy-caching.en.rst:670
+msgid "Configuring How Traffic Server Caches Alternates"
+msgstr "Traffic Server がキャッシュする代替の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:672
+msgid ""
+"To configure how Traffic Server caches alternates, follow the steps below"
+msgstr ""
+"Traffic Server が代替をキャッシュするように設定するには、次のステップに従っ"
+"てください。"
+
+#: ../../admin/http-proxy-caching.en.rst:677
+msgid ":ts:cv:`proxy.config.http.cache.enable_default_vary_headers`"
+msgstr ":ts:cv:`proxy.config.http.cache.enable_default_vary_headers`"
+
+#: ../../admin/http-proxy-caching.en.rst:678
+msgid ":ts:cv:`proxy.config.http.cache.vary_default_text`"
+msgstr ":ts:cv:`proxy.config.http.cache.vary_default_text`"
+
+#: ../../admin/http-proxy-caching.en.rst:679
+msgid ":ts:cv:`proxy.config.http.cache.vary_default_images`"
+msgstr ":ts:cv:`proxy.config.http.cache.vary_default_images`"
+
+#: ../../admin/http-proxy-caching.en.rst:680
+msgid ":ts:cv:`proxy.config.http.cache.vary_default_other`"
+msgstr ":ts:cv:`proxy.config.http.cache.vary_default_other`"
+
+#: ../../admin/http-proxy-caching.en.rst:687
+msgid ""
+"If you specify ``Cookie`` as the header field on which to vary in the above "
+"variables, make sure that the variable :ts:cv:`proxy.config.http.cache."
+"cache_responses_to_cookies` is set appropriately."
+msgstr ""
+"上の変数に ``Cookie`` を切り替えるためのヘッダーフィールドとして指定した場"
+"合、 :ts:cv:`proxy.config.http.cache.cache_responses_to_cookies` が適切に"
+"セットされていることを確認して下さい。"
+
+#: ../../admin/http-proxy-caching.en.rst:693
+msgid "Limiting the Number of Alternates for an Object"
+msgstr "オブジェクトの代替数の制限"
+
+#: ../../admin/http-proxy-caching.en.rst:695
+msgid ""
+"You can limit the number of alternates Traffic Server can cache per object "
+"(the default is 3)."
+msgstr ""
+"Traffic Server がオブジェクト毎にキャッシュする代替数を制限することができま"
+"す。(デフォルトは 3 です)"
+
+#: ../../admin/http-proxy-caching.en.rst:700
+msgid ""
+"Large numbers of alternates can affect Traffic Server cache performance "
+"because all alternates have the same URL. Although Traffic Server can look "
+"up the URL in the index very quickly, it must scan sequentially through "
+"available alternates in the object store."
+msgstr ""
+"全ての代替は同一の URL を持つため、代替の数が多いと Traffic Server のキャッ"
+"シュパフォーマンスに影響を与えるかもしれません。Traffic Server はインデック"
+"ス中の URL をとても高速に検索しますが、キャッシュストアの中に使用可能な代替"
+"があるかはシーケンシャルにスキャンしなければなりません。"
+
+#: ../../admin/http-proxy-caching.en.rst:705
+msgid "To limit the number of alternates"
+msgstr "代替の数を制限するには"
+
+#: ../../admin/http-proxy-caching.en.rst:707
+msgid "Edit the variable :ts:cv:`proxy.config.cache.limits.http.max_alts`"
+msgstr ""
+":ts:cv:`proxy.config.cache.limits.http.max_alts` 変数を変更してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:714
+msgid "Using Congestion Control"
+msgstr "輻輳制御"
+
+#: ../../admin/http-proxy-caching.en.rst:716
+msgid ""
+"The **Congestion Control** option enables you to configure Traffic Server "
+"to stop forwarding HTTP requests to origin servers when they become "
+"congested. Traffic Server then sends the client a message to retry the "
+"congested origin server later."
+msgstr ""
+"**輻輳制御** オプションはオリジンサーバーが混雑しているときに Traffic "
+"Server が HTTP リクエストを転送することを止めることを可能にします。Traffic "
+"Server はその後、混雑してるオリジンサーバーに後でリトライするメッセージをク"
+"ライアントに送ります。"
+
+#: ../../admin/http-proxy-caching.en.rst:721
+msgid ""
+"To use the **Congestion Control** option, you must perform the following "
+"tasks:"
+msgstr "**輻輳制御** オプションを使うには、次のタスクを実行してください。"
+
+#: ../../admin/http-proxy-caching.en.rst:724
+msgid ""
+"Set the variable :ts:cv:`proxy.config.http.congestion_control.enabled` to "
+"``1``"
+msgstr ""
+":ts:cv:`proxy.config.http.congestion_control.enabled` 変数を ``1`` にセット"
+"して下さい。"
+
+#: ../../admin/http-proxy-caching.en.rst:726
+msgid "Create rules in the :file:`congestion.config` file to specify:"
+msgstr ""
+"ルールを作成して :file:`congestion.config` ファイルに次のように記述してくだ"
+"さい。"
+
+#: ../../admin/http-proxy-caching.en.rst:727
+msgid "which origin servers Traffic Server tracks for congestion"
+msgstr "混雑しているか Traffic Server が追跡するオリジンサーバー"
+
+#: ../../admin/http-proxy-caching.en.rst:728
+msgid ""
+"the timeouts Traffic Server uses, depending on whether a server is congested"
+msgstr ""
+"サーバーが混雑していると判定するために Traffic Sever が使用するタイムアウト"
+"値"
+
+#: ../../admin/http-proxy-caching.en.rst:730
+msgid ""
+"the page Traffic Server sends to the client when a server becomes congested"
+msgstr "サーバー混雑時に Traffic Server がクライアントに送るページ"
+
+#: ../../admin/http-proxy-caching.en.rst:732
+msgid ""
+"if Traffic Server tracks the origin servers per IP address or per hostname"
+msgstr ""
+"Traffic Server が IP アドレス毎に追跡するか、ホストネーム毎に追跡するかどう"
+"か"
+
+#: ../../admin/http-proxy-caching.en.rst:741
+msgid "Using Transaction Buffering Control"
+msgstr "トランザクションバッファリング制御"
+
+#: ../../admin/http-proxy-caching.en.rst:743
+msgid ""
+"By default I/O operations are run at full speed, as fast as either Traffic "
+"Server, the network, or the cache can go. This can be problematic for large "
+"objects if the client side connection is significantly slower. In such "
+"cases the content will be buffered in ram while waiting to be sent to the "
+"client. This could potentially also happen for ``POST`` requests if the "
+"client connection is fast and the origin server connection slow. If very "
+"large objects are being used this can cause the memory usage of Traffic "
+"Server to become `very large <https://issues.apache.org/jira/browse/"
+"TS-1496>`_."
+msgstr ""
+"デフォルトでは I/O オペレーションは Traffic Server やネットワークやキャッ"
+"シュが実行できる限り速くフルスピードで実行されます。これはクライアント側のコ"
+"ネクションが遅い場合に、大きなオブジェクトにとって問題になる可能性がありま"
+"す。このような場合、クライアントに送られるのを待っている間、コンテンツはメモ"
+"リにバッファーされます。これはクライアントのコネクションが早く、オリジンサー"
+"バーのコネクションが遅い場合に ``POST`` リクエストでも発生し得ます。とても大"
+"きなオブジェクトが使われているとこれは Traffic Server のメモリ使用量がとても"
+"大きくなる原因になり得ます。 `very large <https://issues.apache.org/jira/"
+"browse/TS-1496>`_"
+
+#: ../../admin/http-proxy-caching.en.rst:750
+msgid ""
+"This problem can be ameloriated by controlling the amount of buffer space "
+"used by a transaction. A high water and low water mark are set in terms of "
+"bytes used by the transaction. If the buffer space in use exceeds the high "
+"water mark, the connection is throttled to prevent additional external data "
+"from arriving. Internal operations continue to proceed at full speed until "
+"the buffer space in use drops below the low water mark and external data I/"
+"O is re-enabled."
+msgstr ""
+"この問題はトランザクションが使うバッファースペースの量をコントロールすること"
+"で改善されるかもしれません。high water と low water マークはトランザクション"
+"で使用されるバイトの幅をセットします。バッファースペースが high water マーク"
+"を越えた場合、コネクションは追加のデータがやってくることを止める為に減速しま"
+"す。使われているバッファースペースが low water マークを下回り、外部のデータ "
+"I/O が再開されるまで内側のオペレーションはフルスピードで進み続けます。"
+
+#: ../../admin/http-proxy-caching.en.rst:755
+msgid ""
+"Although this is intended primarily to limit the memory usage of Traffic "
+"Server it can also serve as a crude rate limiter by setting a buffer limit "
+"and then throttling the client side connection either externally or via a "
+"transform. This will cause the connection to the origin server to be "
+"limited to roughly the client side connection speed."
+msgstr ""
+"主に Traffic Server のメモリ使用量を制限することを意図していますが、これはま"
+"た大雑把なレートリミッターも提供します。これはバッファーリミットの設定と、外"
+"部やトランスフォームの影響により、クライアント側のコネクションを減速させるこ"
+"とによります。これはオリジンサーバーへのコネクションがクライアント側のコネク"
+"ションスピードにより大まかに制限されることをもたします。"
+
+#: ../../admin/http-proxy-caching.en.rst:759
+msgid ""
+"Traffic Server does network I/O in large chunks (32K or so) and therefore "
+"the granularity of transaction buffering control is limited to a similar "
+"precision."
+msgstr ""
+"Traffic Server はネットワーク I/O をラージチャンク(32K など) で行います。"
+"よって、トランザクションバッファリングコントロールの粒度は同じような値に制限"
+"されています。"
+
+#: ../../admin/http-proxy-caching.en.rst:762
+msgid ""
+"The buffer size calculations include all elements in the transaction, "
+"including any buffers associated with :ref:`transform plugins <transform-"
+"plugin>`."
+msgstr ""
+"バッファーサイズの計算はトランザクションの全ての要素を含んでいます。これは :"
+"ref:`transform plugins <transform-plugin>` に紐づけられているどんなバッ"
+"ファーも含みます。"
+
+#: ../../admin/http-proxy-caching.en.rst:764
+msgid ""
+"Transaction buffering control can be enabled globally by using "
+"configuration variables or by :c:func:`TSHttpTxnConfigIntSet` in a plugin."
+msgstr ""
+"トランザクションバッファーコントロールは設定変数を使ってグローバルに有効化す"
+"ることもできます。また :c:func:`TSHttpTxnConfigIntSet` を使用してプラグイン"
+"の中で有効化することもできます。"
+
+#: ../../admin/http-proxy-caching.en.rst:767
+msgid "Value"
+msgstr "値"
+
+#: ../../admin/http-proxy-caching.en.rst:767
+msgid "Variable"
+msgstr "変数"
+
+#: ../../admin/http-proxy-caching.en.rst:767
+msgid "`TSHttpTxnConfigIntSet` key"
+msgstr "`TSHttpTxnConfigIntSet` キー"
+
+#: ../../admin/http-proxy-caching.en.rst:769
+msgid "Enable buffering"
+msgstr "バッファーの有効化"
+
+#: ../../admin/http-proxy-caching.en.rst:769
+msgid ":ts:cv:`proxy.config.http.flow_control.enabled`"
+msgstr ":ts:cv:`proxy.config.http.flow_control.enabled`"
+
+#: ../../admin/http-proxy-caching.en.rst:769
+msgid "`TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED`"
+msgstr "`TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED`"
+
+#: ../../admin/http-proxy-caching.en.rst:770
+msgid "Set high water"
+msgstr "high water の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:770
+msgid ":ts:cv:`proxy.config.http.flow_control.high_water`"
+msgstr ":ts:cv:`proxy.config.http.flow_control.high_water`"
+
+#: ../../admin/http-proxy-caching.en.rst:770
+msgid "`TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER`"
+msgstr "`TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER`"
+
+#: ../../admin/http-proxy-caching.en.rst:771
+msgid "Set low water"
+msgstr "low water の設定"
+
+#: ../../admin/http-proxy-caching.en.rst:771
+msgid ":ts:cv:`proxy.config.http.flow_control.low_water`"
+msgstr ":ts:cv:`proxy.config.http.flow_control.low_water`"
+
+#: ../../admin/http-proxy-caching.en.rst:771
+msgid "`TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER`"
+msgstr "`TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER`"
+
+#: ../../admin/http-proxy-caching.en.rst:774
+msgid ""
+"Be careful to always have the low water mark equal or less than the high "
+"water mark. If you set only one, the other will be set to the same value."
+msgstr ""
+"low water マークは high water マークと常に同じか少ないことに注意してくださ"
+"い。一方だけを設定すると、もう一方は同じ値に設定されます。"
+
+#: ../../admin/http-proxy-caching.en.rst:777
+msgid ""
+"If using c:func:`TSHttpTxnConfigIntSet`, it must be called no later than "
+"`TS_HTTP_READ_RESPONSE_HDR_HOOK`."
+msgstr ""
+"c:func:`TSHttpTxnConfigIntSet` を使う場合、`TS_HTTP_READ_RESPONSE_HDR_HOOK` "
+"のすぐ後ろで呼ばれなければなりません。"
+
+#: ../../admin/http-proxy-caching.en.rst:782
+msgid "Reducing Origin Server Requests (Avoiding the Thundering Herd)"
+msgstr "オリジンサーバーへのリクエストの削減(Thundering Herd 問題を避ける)"
+
+#: ../../admin/http-proxy-caching.en.rst:784
+msgid ""
+"When an object can not be served from cache, the request will be proxied to "
+"the origin server. For a popular object, this can result in many near "
+"simultaneous requests to the origin server, potentially overwhelming it or "
+"associated resources. There are several features in Traffic Server that can "
+"be used to avoid this scenario."
+msgstr ""
+"オブジェクトがキャッシュから配信されない場合、リクエストはオリジンサーバーに"
+"プロキシーされます。ポピュラーなオブジェクトにとって、これはオリジンサーバー"
+"へ多くの同じ様なリクエストを送り、可能性としては計り知れない程の関連したリ"
+"ソースを使うかもしれません。Traffic Server にはこのシナリオを避けられるいく"
+"つかの機能があります。"
+
+#: ../../admin/http-proxy-caching.en.rst:789
+msgid "Read While Writer"
+msgstr "Read While Writer"
+
+#: ../../admin/http-proxy-caching.en.rst:790
+msgid ""
+"When Traffic Server goes to fetch something from origin, and upon receiving "
+"the response, any number of clients can be allowed to start serving the "
+"partially filled cache object once background_fill_completed_threshold % of "
+"the object has been received. The difference is that Squid allows this as "
+"soon as it goes to origin, whereas ATS can not do it until we get the "
+"complete response header. The reason for this is that we make no "
+"distinction between cache refresh, and cold cache, so we have no way to "
+"know if a response is going to be cacheable, and therefore allow read-while-"
+"writer functionality."
+msgstr ""
+"Traffic Server がオリジンからオブジェクトをフェッチしに行くとき、そしてレス"
+"ポンスを受け取るとき、受け取ったオブジェクトの "
+"background_fill_completed_threshold % が満たされた部分的キャッシュオブジェク"
+"トを配信することがどんな数のクライアントにも許されています。違いは Squid は"
+"オリジンに行ったすぐ後で許可していますが、ATS は完全なレスポンスヘッダーを受"
+"け取るまでできないことです。この理由はキャッシュリフレッシュとコールドキャッ"
+"シュの間で差異を作りたくないからです。レスポンスがキャッシュ可能なものか知る"
+"方法がないので、read-while-writer 機能を許可しています。"
+
+#: ../../admin/http-proxy-caching.en.rst:792
+msgid "The configurations necessary to enable this in ATS are:"
+msgstr "ATS でこれを有効化する為に必要な設定は"
+
+#: ../../admin/http-proxy-caching.en.rst:794
+msgid "CONFIG :ts:cv:`proxy.config.cache.enable_read_while_writer` ``INT 1``"
+msgstr "CONFIG :ts:cv:`proxy.config.cache.enable_read_while_writer` ``INT 1``"
+
+#: ../../admin/http-proxy-caching.en.rst:795
+msgid ""
+"CONFIG :ts:cv:`proxy.config.http.background_fill_active_timeout` ``INT 0``"
+msgstr ""
+"CONFIG :ts:cv:`proxy.config.http.background_fill_active_timeout` ``INT 0``"
+
+#: ../../admin/http-proxy-caching.en.rst:796
+msgid ""
+"CONFIG :ts:cv:`proxy.config.http.background_fill_completed_threshold` "
+"``FLOAT 0.000000``"
+msgstr ""
+"CONFIG :ts:cv:`proxy.config.http.background_fill_completed_threshold` "
+"``FLOAT 0.000000``"
+
+#: ../../admin/http-proxy-caching.en.rst:797
+msgid "CONFIG :ts:cv:`proxy.config.cache.max_doc_size` ``INT 0``"
+msgstr "CONFIG :ts:cv:`proxy.config.cache.max_doc_size` ``INT 0``"
+
+#: ../../admin/http-proxy-caching.en.rst:799
+msgid "All four configurations are required, for the following reasons:"
+msgstr "次の理由により、４つ全ての設定が必要です。"
+
+#: ../../admin/http-proxy-caching.en.rst:801
+msgid "enable_read_while_writer turns the feature on. It's off (0) by default"
+msgstr ""
+"enable_read_while_writer は機能を on にします。デフォルトでは off (0) です。"
+
+#: ../../admin/http-proxy-caching.en.rst:802
+msgid ""
+"The background fill feature should be allowed to kick in for every possible "
+"request. This is necessary, in case the writer (\"first client session\") "
+"goes away, someone needs to take over the session. Hence, you should set "
+"the background fill timeouts and threshold to zero; this assures they never "
+"times out and always is allowed to kick in."
+msgstr ""
+"バックグラウンドフィル機能は全てのあり得るリクエストでキックされることが許可"
+"されているべきです。これは重要で、writer (\"最初のクライアントセッション\") "
+"が出て行った場合、誰かがセッションを引継ぐ必要があります。したがって、バック"
+"グラウンドフィルタイムアウトを設定し、境界点をゼロにするべきです。これは彼ら"
+"を安心させます。タイムアウトせずに、キックインすることを常に許可されていま"
+"す。"
+
+#: ../../admin/http-proxy-caching.en.rst:803
+msgid ""
+"The proxy.config.cache.max_doc_size should be unlimited (set to 0), since "
+"the object size may be unknown, and going over this limit would cause a "
+"disconnect on the objects being served."
+msgstr ""
+"proxy.config.cache.max_doc_size は無制限(0)に設定されているべきです。オブ"
+"ジェクトサイズは分からないので。この制限は配信されているオブジェクトのコネク"
+"ションの切断の原因になるかもしれません。"
+
+#: ../../admin/http-proxy-caching.en.rst:805
+msgid ""
+"Once all this enabled, you have something that is very close, but not quite "
+"the same, as Squid's Collapsed Forwarding."
+msgstr ""
+"一度これら全てが有効化されると、Squid の Collapesd Forwarding にとても近いが"
+"異なるものができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:812
+msgid "Fuzzy Revalidation"
+msgstr "Fuzzy Revalidation"
+
+#: ../../admin/http-proxy-caching.en.rst:813
+msgid ""
+"Traffic Server can be set to attempt to revalidate an object before it "
+"becomes stale in cache. :file:`records.config` contains the settings:"
+msgstr ""
+"Traffic Server はキャッシュが新鮮でなくなる前に、オブジェクトの再検証を試み"
+"るように設定することもできます。:file:`records.config` に次の設定がありま"
+"す。"
+
+#: ../../admin/http-proxy-caching.en.rst:815
+msgid "CONFIG :ts:cv:`proxy.config.http.cache.fuzz.time` ``INT 240``"
+msgstr "CONFIG :ts:cv:`proxy.config.http.cache.fuzz.time` ``INT 240``"
+
+#: ../../admin/http-proxy-caching.en.rst:816
+msgid "CONFIG :ts:cv:`proxy.config.http.cache.fuzz.min_time` ``INT 0``"
+msgstr "CONFIG :ts:cv:`proxy.config.http.cache.fuzz.min_time` ``INT 0``"
+
+#: ../../admin/http-proxy-caching.en.rst:817
+msgid ""
+"CONFIG :ts:cv:`proxy.config.http.cache.fuzz.probability` ``FLOAT 0.005``"
+msgstr ""
+"CONFIG :ts:cv:`proxy.config.http.cache.fuzz.probability` ``FLOAT 0.005``"
+
+#: ../../admin/http-proxy-caching.en.rst:819
+msgid ""
+"For every request for an object that occurs \"fuzz.time\" before (in the "
+"example above, 240 seconds) the object is set to become stale, there is a "
+"small chance (fuzz.probability == 0.5%) that the request will trigger a "
+"revalidation request to the origin. For objects getting a few requests per "
+"second, this would likely not trigger, but then this feature is not "
+"necessary anyways since odds are only 1 or a small number of connections "
+"would hit origin upon objects going stale. The defaults are a good "
+"compromise, for objects getting roughly 4 requests / second or more, it's "
+"virtually guaranteed to trigger a revalidate event within the 240s. These "
+"configs are also overridable per remap rule or via a plugin, so can be "
+"adjusted per request if necessary."
+msgstr ""
+"新鮮でないとセットされる前に \"fuzz.time\" (上の例では 240 秒) を発生させる"
+"すべてのオブジェクトへのリクエストには、オリジンへの再検証リクエストを引き起"
+"こすわずかな可能性 ( fuzz.probability == 0.5% ) があります。秒間 2,3 リクエ"
+"スト数しかないオブジェクトでは、これはまず引き起こされません。また、オッズが"
+"たったの 1 やオブジェクトが新鮮ではなくなり、コネクションがオリジンをヒット"
+"する数が少ないとき、この機能は必要ではありません。デフォルト値はいい妥協点で"
+"あり、おおよそ秒間 4 リクエスト以上のオブジェクトにとって、240 秒以内に再検"
+"証が引き起こされることが実質的に保証されます。これらの設定は remap ルール毎"
+"やプラグインによって上書きすることもできるので、必要であればリクエスト毎に調"
+"整することもできます。"
+
+#: ../../admin/http-proxy-caching.en.rst:822
+msgid ""
+"Note that if the revalidation occurs, the requested object is no longer "
+"available to be served from cache.  Subsequent requests for that object "
+"will be proxied to the origin."
+msgstr ""
+"再検証が起きた場合、リクエストされたオブジェクトはもはやキャッシュから配信す"
+"ることはできないことに注意してください。続いて起きるオブジェクトへのリクエス"
+"トはオリジンサーバーにプロキシーされます。"
+
+#: ../../admin/http-proxy-caching.en.rst:825
+msgid ""
+"Finally, the fuzz.min_time is there to be able to handle requests with a "
+"TTL less than fuzz.time – it allows for different times to evaluate the "
+"probability of revalidation for small TTLs and big TTLs. Objects with small "
+"TTLs will start \"rolling the revalidation dice\" near the fuzz.min_time, "
+"while objects with large TTLs would start at fuzz.time. A logarithmic like "
+"function between determines the revalidation evaluation start time (which "
+"will be between fuzz.min_time and fuzz.time). As the object gets closer to "
+"expiring, the window start becomes more likely. By default this setting is "
+"not enabled, but should be enabled anytime you have objects with small "
+"TTLs. Note that this option predates overridable configurations, so you can "
+"achieve something similar with a plugin or remap.config conf_remap.so "
+"configs."
+msgstr ""
+"最後に fuzz.min_time は fuzz.time より短い TTL のリクエストを制御することを"
+"可能にするためにあります - それは小さい TTL と大きい TTL で再検証の確率を評"
+"価する時間が異なることを許容します。TTL の小さなオブジェクトは fuzz."
+"min_time 付近で \"再検証のサイコロを転がす\" ことを始めます。一方、大きな "
+"TTL のオブジェクトは fuzz.time から始めます。対数のような関数が再検証査定を"
+"始める時間を決定します。(その値は fuzz.min_time と fuzz.time の間でしょう) "
+"期限切れに近いオブジェクトでは、期間の始まりはより可能性が高くなります。デ"
+"フォルトではこの設定は有効化されていません。しかし、TTL の小さなオブジェクト"
+"がある場合、いつでも有効化するべきです。このオプションは設定を上書きする前に"
+"起きることに注意してください。よって、プラグインや remap.config conf_remap."
+"so configs のようなものを作ることができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:827
+msgid ""
+"These configurations are similar to Squid's refresh_stale_hit configuration "
+"option."
+msgstr ""
+"これらの設定は Squid の refresh_stale_hit 設定オプションに似ています。"
+
+#: ../../admin/http-proxy-caching.en.rst:831
+msgid "Open Read Retry Timeout"
+msgstr "Open Read Retry Timeout"
+
+#: ../../admin/http-proxy-caching.en.rst:833
+msgid ""
+"The open read retry configurations attempt to reduce the number of "
+"concurrent requests to the origin for a given object. While an object is "
+"being fetched from the origin server, subsequent requests would wait "
+"open_read_retry_time milliseconds before checking if the object can be "
+"served from cache. If the object is still being fetched, the subsequent "
+"requests will retry max_open_read_retries times. Thus, subsequent requests "
+"may wait a total of (max_open_read_retries x open_read_retry_time) "
+"milliseconds before establishing an origin connection of its own. For "
+"instance, if they are set to 5 and 10 respectively, connections will wait "
+"up to 50ms for a response to come back from origin from a previous request, "
+"until this request is allowed through."
+msgstr ""
+"オープンリードリトライ設定は与えられたオブジェクトに対してオリジンサーバーへ"
+"の並列リクエストの数を減らすことを試みています。あるオブジェクトがオリジン"
+"サーバーからフェッチされている間、次のリクエストはオブジェクトがキャッシュか"
+"ら配信できるかどうかを確認する前に open_read_retry_time ミリ秒待ちます。オブ"
+"ジェクトが依然としてフェッチされている場合、次のリクエストは "
+"max_open_read_retries 回リトライします。すると、次のリクエストはオリジンサー"
+"バーへのコネクションを自分自身で確立する前に合計で (max_open_read_retries x "
+"open_read_retry_time) ミリ秒待ちます。例えばそれぞれ 5 や 10 にセットされた"
+"場合、このリクエストが許可されるまでコネクションは前回のリクエストがオリジン"
+"からレスポンスが帰ってくる間 50ms 待ちます。"
+
+#: ../../admin/http-proxy-caching.en.rst:835
+msgid ""
+"These settings are inappropriate when objects are uncacheable. In those "
+"cases, requests for an object effectively become serialized. The subsequent "
+"requests would await at least open_read_retry_time milliseconds before "
+"being proxies to the origin."
+msgstr ""
+"これらの設定はオブジェクトがキャッシュ不可能な場合、適切ではありません。これ"
+"らの場合、オブジェクトへのリクエストは実際には直列になります。次のリクエスト"
+"はオリジンにプロキシーされる前に少なくとも open_read_retry_time ミリ秒待たさ"
+"れるでしょう。"
+
+#: ../../admin/http-proxy-caching.en.rst:837
+msgid ""
+"Similarly, this setting should be used in conjunction with Read While "
+"Writer for big (those that take longer than (max_open_read_retries x "
+"open_read_retry_time) milliseconds to transfer) cacheable objects. Without "
+"the read-while-writer settings enabled, while the initial fetch is ongoing, "
+"not only would subsequent requests be delayed by the maximum time, but "
+"also, those requests would result in another request to the origin server."
+msgstr ""
+"同様にこの設定は大きな (転送に (max_open_read_retries x "
+"open_read_retry_time) ミリ秒以上かかる) キャッシュ可能なオブジェクトの Read "
+"While Writer の続発の中では使われるべきです。 read-while-writer 設定を有効化"
+"しないと、初回のフェッチが行われている間、次のリクエストが最大限遅れるだけで"
+"はなく、結果としてオリジンサーバーへの他のリクエストを発生させます。"
+
+#: ../../admin/http-proxy-caching.en.rst:839
+msgid ""
+"Since ATS now supports setting these settings per-request or remap rule, "
+"you can configure this to be suitable for your setup much more easily."
+msgstr ""
+"ATS はリクエスト毎や remap ルールに設定することをサポートしているので、これ"
+"はより簡単に適切に設定することができます。"
+
+#: ../../admin/http-proxy-caching.en.rst:841
+msgid "The configurations are (with defaults):"
+msgstr "設定とそのデフォルト値は"
+
+#: ../../admin/http-proxy-caching.en.rst:843
+msgid ""
+"CONFIG :ts:cv:`proxy.config.http.cache.max_open_read_retries` ``INT -1``"
+msgstr ""
+"CONFIG :ts:cv:`proxy.config.http.cache.max_open_read_retries` ``INT -1``"
+
+#: ../../admin/http-proxy-caching.en.rst:844
+msgid ""
+"CONFIG :ts:cv:`proxy.config.http.cache.open_read_retry_time` ``INT 10``"
+msgstr ""
+"CONFIG :ts:cv:`proxy.config.http.cache.open_read_retry_time` ``INT 10``"
+
+#: ../../admin/http-proxy-caching.en.rst:846
+msgid ""
+"The default means that the feature is disabled, and every connection is "
+"allowed to go to origin instantly. When enabled, you will try "
+"max_open_read_retries times, each with a open_read_retry_time timeout."
+msgstr ""
+"デフォルトはこの機能が無効化されていて、全てのコネクションはオリジンにすぐに"
+"行くことを許可されていることを意味します。有効化した場合、"
+"open_read_retry_time タイムアウト毎に max_open_read_retries 回試すでしょう。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/index.en.po b/doc/locale/ja/LC_MESSAGES/admin/index.en.po
new file mode 100644
index 00000000..d5b8b5cc
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/index.en.po
@@ -0,0 +1,643 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2013-11-23 00:20+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/index.en.rst:4
+msgid "Administrators' Guide"
+msgstr "管理者ガイド"
+
+#: ../../admin/index.en.rst:24
+msgid ""
+"Apache Traffic Server™ speeds Internet access, enhances website "
+"performance, and delivers unprecedented web hosting capabilities."
+msgstr ""
+"Apache Traffic Server™ はインターネットアクセスを加速させ、ウェブサイトのパ"
+"フォーマンスを高め、かつて無いウェブホスティング性能を提供します。"
+
+#: ../../admin/index.en.rst:27
+msgid "This chapter discusses how:"
+msgstr "この章は次のようなトピックについて書いてあります。"
+
+#: ../../admin/index.en.rst:29
+msgid "Contents:"
+msgstr "内容:"
+
+#: ../../admin/index.en.rst:54
+msgid "What Is Apache Traffic Server?"
+msgstr "Apache Traffic Server とは"
+
+#: ../../admin/index.en.rst:56
+msgid ""
+"Global data networking has become part of everyday life: Internet users "
+"request billions of documents and terabytes of data, on a daily basis, to "
+"and from all parts of the world. Information is free, abundant, and "
+"accessible. Unfortunately, global data networking can also be a nightmare "
+"for IT professionals as they struggle with overloaded servers and congested "
+"networks. It can be challenging to consistently and reliably accommodate "
+"society’s growing data demands."
+msgstr ""
+"グローバルなデータネットワークの利用は日常生活の一部となりました。インター"
+"ネットユーザーは日常生活の基盤の上で数１０億ものドキュメントやテラバイトの"
+"データを世界の隅から隅へリクエストします。不幸なことに、グローバルデータネッ"
+"トワーキングは過負荷なサーバーや混雑したネットワークと格闘している IT 専門家"
+"にとっては悪夢です。増え続けるデータ需要を絶えず、期待通りに動くように対応す"
+"ることはチャレンジングなことです。"
+
+#: ../../admin/index.en.rst:64
+msgid ""
+"Traffic Server is a high-performance web proxy cache that improves network "
+"efficiency and performance by caching frequently-accessed information at "
+"the edge of the network. This brings content physically closer to end "
+"users, while enabling faster delivery and reduced bandwidth use. Traffic "
+"Server is designed to improve content delivery for enterprises, Internet "
+"service providers (ISPs), backbone providers, and large intranets by "
+"maximizing existing and available bandwidth."
+msgstr ""
+"Traffic Server は高性能なウェブプロキシーキャッシュです。頻繁にアクセスされ"
+"る情報をネットワークの端でキャッシュすることによりネットワーク効率とパフォー"
+"マンスを改善します。これは物理的にエンドユーザーに近いコンテンツを届け、高速"
+"な配信と帯域使用量の削減を可能とします。Traffic Server は商用のコンテンツ配"
+"信やインターネットサービスプロバイダー( ISP )やバックボーンプロバイダーや巨"
+"大なイントラネットを現行の利用可能な帯域を最大化することで改善するようにデザ"
+"インされています。"
+
+#: ../../admin/index.en.rst:73
+msgid "Traffic Server Deployment Options"
+msgstr "Traffic Server デプロイメントオプション"
+
+#: ../../admin/index.en.rst:75
+msgid ""
+"To best suit your needs, Traffic Server can be deployed in several ways:"
+msgstr ""
+"必要に応じて、Traffic Server はいくつかの方法で配置することができます。"
+
+#: ../../admin/index.en.rst:77
+msgid "As a web proxy cache"
+msgstr "ウェブプロキシーキャッシュとして"
+
+#: ../../admin/index.en.rst:78
+msgid "As a reverse proxy"
+msgstr "リバースプロキシーとして"
+
+#: ../../admin/index.en.rst:79
+msgid "In a cache hierarchy"
+msgstr "キャッシュ階層の一部として"
+
+#: ../../admin/index.en.rst:81
+msgid ""
+"The following sections provide a summary of these Traffic Server deployment "
+"options. Please keep in mind that with every of these options Traffic "
+"Server can be run as a *single instance*, or as a *multi-node cluster*."
+msgstr ""
+"次のセクションではこれらの Traffic Server のデプロイメントオプションの概要を"
+"説明します。これらのすべてのプションで Traffic Server は *シングルインスタン"
+"ス* としても *マルチノードクラスター* としても動作することを覚えておいて下さ"
+"い。"
+
+#: ../../admin/index.en.rst:87
+msgid "Traffic Server as a Web Proxy Cache"
+msgstr "ウェブプロキシーキャッシュとしての Traffic Server"
+
+#: ../../admin/index.en.rst:89
+msgid ""
+"As a web proxy cache, Traffic Server receives user requests for web content "
+"as those requests travel to the destined web server (origin server). If "
+"Traffic Server contains the requested content, then it serves the content "
+"directly. If the requested content is not available from cache, then "
+"Traffic Server acts as a proxy: it obtains the content from the origin "
+"server on the user’s behalf and also keeps a copy to satisfy future "
+"requests."
+msgstr ""
+"ウェブプロキシーキャッシュとして Traffic Server はウェブコンテンツへのユー"
+"ザーリクエストを受け取り、宛先のウェブサーバー(オリジンサーバー)へ届けます。"
+"Traffic Server がリクエストされたコンテンツを持っている場合、そのコンテンツ"
+"を直接配信します。リクエストされたコンテンツがキャッシュから使えない場合、"
+"Traffic Server はプロキシーとして振る舞います。つまり、コンテンツをユーザー"
+"に代わってコンテンツを取得し、また将来のリクエストを満たすためにコピーを保持"
+"します。"
+
+#: ../../admin/index.en.rst:97
+msgid ""
+"Traffic Server provides explicit proxy caching, in which the user’s client "
+"software must be configured to send requests directly to Traffic Server. "
+"Explicit proxy caching is described in the :ref:`explicit-proxy-caching` "
+"chapter."
+msgstr ""
+"Traffic Server は明確なプロキシーキャッシュを提供します。この場合ユーザーの"
+"クライアントソフトウェアは Traffic Server に直接リクエストを送るように設定さ"
+"れていなければなりません。明確なプロキシーキャッシュについては :ref:"
+"`explicit-proxy-caching` の章で述べています。"
+
+#: ../../admin/index.en.rst:104
+msgid "Traffic Server as a Reverse Proxy"
+msgstr "リバースプロキシーとしての Traffic Server"
+
+#: ../../admin/index.en.rst:106
+msgid ""
+"As a reverse proxy, Traffic Server is configured to be the origin server to "
+"which the user is trying to connect (typically, the origin server’s "
+"advertised hostname resolves to Traffic Server, which acts as the real "
+"origin server). The reverse proxy feature is also called server "
+"acceleration. Reverse proxy is described in more detail in :ref:`reverse-"
+"proxy-and-http-redirects`."
+msgstr ""
+"リバースプロキシーとして Traffc Server はユーザーが接続しようとするオリジン"
+"サーバーとして設定されています。(一般的に、オリジンサーバーとして公開された"
+"ホスト名は Traffic Server に解決され、実際のオリジンサーバーのように振る舞い"
+"ます。)リバースプロキシー機能はサーバーアクセラレーションとも呼ばれます。リ"
+"バースプロキシーは :ref:`reverse-proxy-and-http-redirects` で詳しく述べられ"
+"ています。"
+
+#: ../../admin/index.en.rst:113
+msgid "Traffic Server in a Cache Hierarchy"
+msgstr "キャッシュ階層での Traffic Server"
+
+#: ../../admin/index.en.rst:115
+msgid ""
+"Traffic Server can participate in flexible cache hierarchies, in which "
+"Internet requests not fulfilled from one cache are routed to other regional "
+"caches, thereby leveraging the contents and proximity of nearby caches. In "
+"a hierarchy of proxy servers, Traffic Server can act either as a parent or "
+"a child cache to other Traffic Server systems or to similar caching "
+"products."
+msgstr ""
+"Traffic Server は柔軟にキャッシュヒエラルキーに参加することができます。その"
+"中で１つのキャッシュからは満たされないインターネットリクエストは他の局地的な"
+"キャッシュに送られます。プロキシーサーバーの階層の中で Traffic Server は他の"
+"Traffic Server システムや似たキャッシングプロダクトの親や子として振る舞いま"
+"す。"
+
+#: ../../admin/index.en.rst:122
+msgid ""
+"Traffic Server supports ICP (Internet Cache Protocol) peering. Hierarchical "
+"caching is described in more detail in :ref:`hierarchical-caching`."
+msgstr ""
+"Traffic Server は ICP(Internet Cache Protocol) のピアイングをサポートしてい"
+"ます。階層的キャッシュは :ref:`hierarchical-caching` で詳しく述べられていま"
+"す。"
+
+#: ../../admin/index.en.rst:126
+msgid "Deployment Limitations"
+msgstr "Deployment Limitations"
+
+#: ../../admin/index.en.rst:128
+msgid ""
+"There's a number of deployment options that Traffic Server does not support "
+"right out of the box. Such funcionality may be implemented in a plugin, but "
+"in some cases Traffic Server's internal APIs or architectural restrictions "
+"won't make it easy:"
+msgstr ""
+"Traffic Server がサポートしていないデプロイメントオプションがいくつかありま"
+"す。そのような機能はプラグインで実装されていることもあります。またいくつかの"
+"場合 Traffic Server の内部的な API やアーキテクチャ的な制限が実装を難しくし"
+"ていることもあります。"
+
+#: ../../admin/index.en.rst:132
+msgid ""
+"Load Balancing - note that there is an experimental plugin for this: :ref:"
+"`balancer-plugin`."
+msgstr ""
+"ロードバランシング - このための実験的なプラクインがあることに注意してくださ"
+"い。 :ref:`balancer-plugin`"
+
+#: ../../admin/index.en.rst:135
+msgid "Traffic Server Components"
+msgstr "Traffic Server Components"
+
+#: ../../admin/index.en.rst:137
+msgid ""
+"Traffic Server consists of several components that work together to form a "
+"web proxy cache you can easily monitor and configure. These main components "
+"are described below."
+msgstr ""
+"Traffic Server は簡単に監視や設定が行えるウェブプロキシーキャッシュを構成す"
+"るために協力するいくつかのコンポーネントから成り立っています。これらのコン"
+"ポーネントについて次に述べます。"
+
+#: ../../admin/index.en.rst:142
+msgid "The Traffic Server Cache"
+msgstr "The Traffic Server Cache"
+
+#: ../../admin/index.en.rst:144
+msgid ""
+"The Traffic Server cache consists of a high-speed object database called "
+"the object store. The object store indexes objects according to URLs and "
+"associated headers. Using sophisticated object management, the object store "
+"can cache alternate versions of the same object (perhaps in a different "
+"language or encoding type). It can also efficiently store very small and "
+"very large objects, thereby minimizing wasted space. When the cache is "
+"full, Traffic Server removes stale data to ensure that the most requested "
+"objects are readily available and fresh."
+msgstr ""
+"Traffic Server キャッシュはオブジェクトストアと呼ばれるハイスピードオブジェ"
+"クトデータベースによって構成されます。オブジェクトは URL と関連するヘッダー"
+"に基づいたインデックスオブジェクトを保存します。洗練されたオブジェクト管理に"
+"より、オブジェクトストアは同じオブジェクトの（言語やエンコーディングタイプな"
+"どが）異なるバージョンをキャッシュすることができます。これは無駄なスペースを"
+"最小化することによって、とても小さかったり、大きかったりするオブジェクトを効"
+"率的に保存することもできます。キャッシュがいっぱいになった場合、Traffic "
+"Server は最もリクエストされるオブジェクトがすぐに利用可能で新しい状態である"
+"ことを保証するために、古いデータを削除します。"
+
+#: ../../admin/index.en.rst:153
+msgid ""
+"Traffic Server is designed to tolerate total disk failures on any of the "
+"cache disks. If the disk fails completely, then Traffic Server marks the "
+"entire disk as corrupt and continues to use remaining disks. If all of the "
+"cache disks fail, then Traffic Server switches to proxy-only mode. You can "
+"partition the cache to reserve a certain amount of disk space for storing "
+"data for specific protocols and origin servers. For more information about "
+"the cache, see :ref:`configuring-the-cache`."
+msgstr ""
+"Traffic Server はすべてのキャッシュディスクのあらゆるディスク不良を許容する"
+"ようにデザインされています。完全にディスクが壊れてしまった場合、Traffic "
+"Server はそのディスクを破損したと印をつけ、残りのディスクを使い続けます。す"
+"べてのディスクが壊れた場合、Traffic Server は proxy-only モードに切り替わり"
+"ます。特定のプロトコルやオリジンサーバーのデータを保存するための一定のディス"
+"クスペースを予約するためにキャッシュを分割することができます。キャッシュに関"
+"するより詳しい情報は :ref:`configuring-the-cache` を参照してください。"
+
+#: ../../admin/index.en.rst:162
+msgid "The RAM Cache"
+msgstr "The RAM Cache"
+
+#: ../../admin/index.en.rst:164
+msgid ""
+"Traffic Server maintains a small RAM cache that contains extremely popular "
+"objects. This RAM cache serves the most popular objects as fast as possible "
+"and reduces load on disks, especially during temporary traffic peaks. You "
+"can configure the RAM cache size to suit your needs; for detailed "
+"information, refer to :ref:`changing-the-size-of-the-ram-cache`."
+msgstr ""
+"Traffic Server はとても頻繁にアクセスされるオブジェクトを含む小さな RAM "
+"キャッシュを持っています。特に一時的なトラフィックのピークの間に、この RAM "
+"キャッシュは最もポピュラーなオブジェクトを可能な限り速く提供し、ディスクから"
+"のロードを減らします。この RAM キャッシュのサイズは必要な量に設定することが"
+"できます。より詳しい情報は :ref:`changing-the-size-of-the-ram-cache` を参照"
+"してください。"
+
+#: ../../admin/index.en.rst:171
+msgid "The Host Database"
+msgstr "The Host Database"
+
+#: ../../admin/index.en.rst:173
+msgid ""
+"The Traffic Server host database stores the domain name server (DNS) "
+"entries of origin servers to which Traffic Server connects to fulfill user "
+"requests. This information is used to adapt future protocol interactions "
+"and optimize performance. Along with other information, the host database "
+"tracks:"
+msgstr ""
+"Traffic Server は Traffic Server がユーザーリクエストを満たすために接続する"
+"オリジンサーバーのドメインネームサーバー(DNS) のエントリを保存するデーター"
+"ベースをホストします。この情報は将来のプロトコルインタラクションへの対応とパ"
+"フォーマンスの最適化のために使われます。加えて、ホストデータベースは次の情報"
+"を保存します。"
+
+#: ../../admin/index.en.rst:179
+msgid "DNS information (for fast conversion of hostnames to IP addresses)"
+msgstr "DNS 情報(ホストネームから IP アドレスを高速に引くため)"
+
+#: ../../admin/index.en.rst:180
+msgid ""
+"The HTTP version of each host (so advanced protocol features can be used "
+"with hosts running modern servers)"
+msgstr ""
+"各ホストの HTTP バージョン(最新のプロトコルの機能はモダンなサーバーで使われ"
+"ているかもしれないため)"
+
+#: ../../admin/index.en.rst:182
+msgid ""
+"Host reliability and availability information (so users will not wait for "
+"servers that are not running)"
+msgstr ""
+"信頼性と可用性の情報(ユーザーが起動していないサーバーを待つことがないように)"
+
+#: ../../admin/index.en.rst:186
+msgid "The DNS Resolver"
+msgstr "The DNS Resolver"
+
+#: ../../admin/index.en.rst:188
+msgid ""
+"Traffic Server includes a fast, asynchronous DNS resolver to streamline "
+"conversion of hostnames to IP addresses. Traffic Server implements the DNS "
+"resolver natively by directly issuing DNS command packets rather than "
+"relying on slower, conventional resolver libraries. Since many DNS queries "
+"can be issued in parallel and a fast DNS cache maintains popular bindings "
+"in memory, DNS traffic is reduced."
+msgstr ""
+"Traffic Server はホスト名から IP アドレスへの変換を統合するために、高速で非"
+"同期な DNS リゾルバも含んでいます。Traffic Server は遅くて月並みなリゾルバラ"
+"イブラリに渡すよりも、直接 DNS コマンドパケットを渡すことによって、DNS リゾ"
+"ルバをネイティブに実行します。多くの DNS クエリが並列で渡され、高速な DNS "
+"キャッシュがポピュラーなバインディングをメモリに保存することにより、DNS トラ"
+"フィックは減ります。"
+
+#: ../../admin/index.en.rst:196
+msgid "Traffic Server Processes"
+msgstr "Traffic Server Processes"
+
+#: ../../admin/index.en.rst:198
+msgid ""
+"Traffic Server contains three processes that work together to serve "
+"requests and manage/control/monitor the health of the system. The three "
+"processes are described below:"
+msgstr ""
+"Traffic Server は 3 つのプロセスから構成されます。それらはリクエストを返し、"
+"システムの状態を管理/制御/監視するために協調して動きます。この 3 つのプロセ"
+"スは下に説明されています。"
+
+#: ../../admin/index.en.rst:202
+msgid ""
+"The :program:`traffic_server` process is the transaction processing engine "
+"of Traffic Server. It is responsible for accepting connections, processing "
+"protocol requests, and serving documents from the cache or origin server."
+msgstr ""
+":program:`traffic_server` プロセスは Traffic Server のトランザクションプロ"
+"セッシングエンジンです。コネクションをアクセプトしたり、プロトコルリクエスト"
+"を処理したり、キャッシュやオリジンサーバーからドキュメントを提供することに責"
+"任を持ちます。"
+
+#: ../../admin/index.en.rst:207
+msgid ""
+"The :program:`traffic_manager` process is the command and control facility "
+"of the Traffic Server, responsible for launching, monitoring, and "
+"reconfiguring the :program:`traffic_server` process. The :program:"
+"`traffic_manager` process is also responsible for the proxy "
+"autoconfiguration port, the statistics interface, cluster administration, "
+"and virtual IP failover."
+msgstr ""
+":program:`traffic_manager` プロセスは Traffic Server への命令と管理機能で"
+"す。起動や監視と :program:`traffic_server` プロセスを再設定したりすることに"
+"責任を持ちます。 :program:`traffic_manager` プロセスはプロキシオートコンフィ"
+"ギュレーションポートや統計のインターフェイスやクラスター管理とバーチャル IP "
+"フェイルオーバーについても責任を持ちます。"
+
+#: ../../admin/index.en.rst:214
+msgid ""
+"If the :program:`traffic_manager` process detects a :program:"
+"`traffic_server` process failure, it instantly restarts the process but "
+"also maintains a connection queue of all incoming requests. All incoming "
+"connections that arrive in the several seconds before full server restart "
+"are saved in the connection queue and processed in first-come, first-served "
+"order. This connection queueing shields users from any server restart "
+"downtime."
+msgstr ""
+":program:`traffic_manager` プロセスが :program:`traffic_server` プロセスが失"
+"敗していることを検知した場合、即座にプロセスを再起動するだけでなく、すべての"
+"リクエストのコネクションキューをメンテナンスします。サーバーが完全に再起動す"
+"る数秒前に到着したすべてのインカミングコネクションはコネクションキューに格納"
+"され、最初に来たものから順に処理されます。このコネクションキューはすべての"
+"サーバーの再起動の際のダウンタイムからユーザーを守ります。"
+
+#: ../../admin/index.en.rst:222
+msgid ""
+"The :program:`traffic_cop` process monitors the health of both the :program:"
+"`traffic_server` and :program:`traffic_manager` processes. The :program:"
+"`traffic_cop` process periodically (several times each minute) queries the :"
+"program:`traffic_server` and :program:`traffic_manager` process by issuing "
+"heartbeat requests to fetch synthetic web pages. In the event of failure "
+"(if no response is received within a timeout interval or if an incorrect "
+"response is received), :program:`traffic_cop` restarts the :program:"
+"`traffic_manager` and :program:`traffic_server` processes."
+msgstr ""
+":program:`traffic_cop` プロセスは :program:`traffic_server` と :program:"
+"`traffic_manager` プロセスの両方の状態をモニターします。 :program:"
+"`traffic_cop` プロセスは定期的(毎分数回)に静的なウェブページを取得するハート"
+"ビートリクエストを渡すことで :program:`traffic_server` と :program:"
+"`traffic_manager` に問い合わせます。失敗したとき(一定期間の間にレスポンスが"
+"帰って来ないときや不正なレスポンスを受け取ったとき) :program:`traffic_cop` "
+"は :program:`traffic_manager` と :program:`traffic_server` プロセスを再起動"
+"します。"
+
+#: ../../admin/index.en.rst:231
+msgid "The figure below illustrates the three Traffic Server processes."
+msgstr "次の図は Traffic Server の3つのイラストです。"
+
+#: ../../admin/index.en.rst:237
+msgid "Illustration of the three Traffic Server Processes"
+msgstr "Illustration of the three Traffic Server Processes"
+
+#: ../../admin/index.en.rst:240
+msgid "Administration Tools"
+msgstr "Administration Tools"
+
+#: ../../admin/index.en.rst:242
+msgid "Traffic Server offers the following administration options:"
+msgstr "Traffic Server は次の管理オプションを提供しています。"
+
+#: ../../admin/index.en.rst:244
+msgid ""
+"The Traffic Line command-line interface is a text-based interface from "
+"which you can monitor Traffic Server performance and network traffic, as "
+"well as configure the Traffic Server system. From Traffic Line, you can "
+"execute individual commands or script a series of commands in a shell."
+msgstr ""
+"Traffic Line コマンドラインインターフェイスはテキストベースのインターフェー"
+"スです。Traffic Server のパフォーマンスとネットワークトラフィックを監視でき"
+"ます。また同じように、Traffic Server システムを設定することもできます。"
+"Traffic Line によって独立したコマンドや一連のコマンドのスクリプトをシェルで"
+"実行することができます。"
+
+#: ../../admin/index.en.rst:249
+msgid ""
+"The Traffic Shell command-line interface is an additional command-line tool "
+"that enables you to execute individual commands that monitor and configure "
+"the Traffic Server system."
+msgstr ""
+"Traffic Shell コマンドラインインターフェイスは追加のコマンドラインツールで、"
+"Traffic Server システムを監視したり設定したりする独立したコマンドを実行する"
+"ことができます。Traffic Line や Traffic Shell を通じたどんな変更も自動的に設"
+"定ファイルを作ります。"
+
+#: ../../admin/index.en.rst:252
+msgid ""
+"Various configuration files enable you to configure Traffic Server through "
+"a simple file-editing and signal-handling interface. Any changes you make "
+"through Traffic Line or Traffic Shell are automatically made to the "
+"configuration files as well."
+msgstr ""
+"様々な設定ファイルはシンプルなファイル編集とシグナルハンドリングインター"
+"フェースを通して、Traffic Server を設定することを可能とします。Traffic Line "
+"か Traffic Shell を通じたどのような変更でも自動的に設定ファイルに書き込まれ"
+"ます。"
+
+#: ../../admin/index.en.rst:256
+msgid ""
+"Finally there is a clean C API which can be put to good use from a "
+"multitude of languages. The Traffic Server Admin Client demonstrates this "
+"for Perl."
+msgstr ""
+"最後に、多くの言語から使うことのできるクリーンな C API があります。 Traffic "
+"Server Admin Client は Perl でこのことを示しています。"
+
+#: ../../admin/index.en.rst:261
+msgid "Traffic Analysis Options"
+msgstr "Traffic Analysis Options"
+
+#: ../../admin/index.en.rst:263
+msgid ""
+"Traffic Server provides several options for network traffic analysis and "
+"monitoring:"
+msgstr ""
+"Traffic Server はネットワークトラフィックの分析と監視のためのいくつかのオプ"
+"ションを提供しています。"
+
+#: ../../admin/index.en.rst:266
+msgid ""
+"Traffic Line and Traffic Shell enable you to collect and process statistics "
+"obtained from network traffic information."
+msgstr ""
+"Traffic Line と Traffic Shell はネットワークトラフィック情報から入手した統計"
+"情報を集めて処理することを可能にします。"
+
+#: ../../admin/index.en.rst:269
+msgid ""
+"Transaction logging enables you to record information (in a log file) about "
+"every request Traffic Server receives and every error it detects. By "
+"analyzing the log files, you can determine how many clients used the "
+"Traffic Server cache, how much information each of them requested, and what "
+"pages were most popular. You can also see why a particular transaction was "
+"in error and what state the Traffic Server was in at a particular time; for "
+"example, you can see that Traffic Server was restarted or that cluster "
+"communication timed out."
+msgstr ""
+"トランザクションロギングは Traffic Server が処理したへすべてのリクエストとす"
+"べての検知したエラーの情報を (ログファイルの中に) 記録することを可能にしま"
+"す。ログファイルを分析することによって、どれほどのクライアントが Traffic "
+"Sever キャッシュを使用し、どれくらいの情報がリクエストされ、どのページがポ"
+"ピュラーなのかを確認することができます。特定のトランザクションがなぜエラーに"
+"なり、そのときの Traffic Server の状態がどうだったのかみることもできます。例"
+"えば Traffic Server が再起動したときや、クラスターコミュニケーションがタイム"
+"アウトしたときなどです。"
+
+#: ../../admin/index.en.rst:278
+msgid ""
+"Traffic Server supports several standard log file formats, such as Squid "
+"and Netscape, and its own custom format. You can analyze the standard "
+"format log files with off-the-shelf analysis packages. To help with log "
+"file analysis, you can separate log files so that they contain information "
+"specific to protocol or hosts."
+msgstr ""
+"Traffic Server は Squid や Netscape などのいくつかの標準的なログフォーマット"
+"や固有のフォーマットをサポートしています。off-the-shelf 分析パッケージによっ"
+"て標準的なフォーマットのログを分析することができます。ログファイルの分析を助"
+"けるために、特定のプロトコルやホストの情報を含むようにログファイルを分割する"
+"ことができます。"
+
+#: ../../admin/index.en.rst:284
+msgid ""
+"Traffic analysis options are described in more detail in :ref:`monitoring-"
+"traffic`."
+msgstr ""
+"トラフィック分析オプションは :ref:`monitoring-traffic` により詳しく書かれて"
+"います。"
+
+#: ../../admin/index.en.rst:286
+msgid ""
+"Traffic Server logging options are described in :ref:`working-with-log-"
+"files`."
+msgstr ""
+"Traffic Server ロギングオプションは :ref:`working-with-log-files` に書かれて"
+"います。"
+
+#: ../../admin/index.en.rst:289
+msgid "Traffic Server Security Options"
+msgstr "Traffic Server Security Options"
+
+#: ../../admin/index.en.rst:291
+msgid ""
+"Traffic Server provides numerous options that enable you to establish "
+"secure communication between the Traffic Server system and other computers "
+"on the network. Using the security options, you can do the following:"
+msgstr ""
+"Traffic Server は Traffic Server システムと他のコンピュータネットワーク間の"
+"セキュアな通信を確立することを可能にする多数のオプションを提供しています。セ"
+"キュリティオプションを使うことによって、次のことが可能です。"
+
+#: ../../admin/index.en.rst:296
+msgid "Control client access to the Traffic Server proxy cache."
+msgstr "Traffic Server プロキシーキャッシュにアクセスするクライアントの管理"
+
+#: ../../admin/index.en.rst:297
+msgid ""
+"Configure Traffic Server to use multiple DNS servers to match your site's "
+"security configuration. For example, Traffic Server can use different DNS "
+"servers, depending on whether it needs to resolve hostnames located inside "
+"or outside a firewall. This enables you to keep your internal network "
+"configuration secure while continuing to provide transparent access to "
+"external sites on the Internet."
+msgstr ""
+"あなたのサイトのセキュリティ設定に合わせて複数の DNS サーバーを使うような "
+"Traffic Server の設定。例えば Traffic Server はホストネームを解決する必要が"
+"あるのがファイアーウォールの内側か外側かによって異なる DNS サーバーを使うこ"
+"とができます。これは透過的にインターネット上の外部サイトにアクセスすることを"
+"提供しつつ、インターナルネットワーク設定をセキュアに保つことを可能にします。"
+
+#: ../../admin/index.en.rst:303
+msgid ""
+"Configure Traffic Server to verify that clients are authenticated before "
+"they can access content from the Traffic Server cache."
+msgstr ""
+"クライアントが Traffic Server キャッシュからコンテンツにアクセスできるように"
+"なる前に、クライアントが認証されていることを検証する Traffic Server 設定"
+
+#: ../../admin/index.en.rst:305
+msgid ""
+"Secure connections in reverse proxy mode between a client and Traffic "
+"Server, and Traffic Server and the origin server, using the SSL termination "
+"option."
+msgstr ""
+"SSL ターミネーションオプションを使うことによる、リバースプロキシーモードでの"
+"クライアントと Traffic Server 間と Traffic Server とオリジンサーバー間の安全"
+"な接続"
+
+#: ../../admin/index.en.rst:308
+msgid "Control access via SSL (Secure Sockets Layer)."
+msgstr "SSL (Secure Socket Layer) によるアクセスの管理"
+
+#: ../../admin/index.en.rst:310
+msgid ""
+"Traffic Server security options are described in more detail in :ref:"
+"`security-options`."
+msgstr ""
+"Traffic Server セキュリティオプションは :ref:`security-options` に詳しく述べ"
+"られています。"
+
+#: ../../admin/index.en.rst:314
+msgid "Tuning Traffic Server"
+msgstr "Traffic Server のチューニング"
+
+#: ../../admin/index.en.rst:316
+msgid ""
+"Finally this last chapter on :ref:`performance-tuning` discusses the vast "
+"number of options that allow to optimally tune Apache Traffic Server for "
+"maximum performance."
+msgstr ""
+"最後にこの最終章 :ref:`performance-tuning` で Apache Traffic Server が最大限"
+"のパフォーマンスを発揮するように最適なチューニングをするための膨大な数のオプ"
+"ションについて論じます。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/monitoring-traffic.en.po b/doc/locale/ja/LC_MESSAGES/admin/monitoring-traffic.en.po
new file mode 100644
index 00000000..c0276269
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/monitoring-traffic.en.po
@@ -0,0 +1,157 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/monitoring-traffic.en.rst:5
+msgid "Monitoring Traffic"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:24
+msgid ""
+"Traffic Server provides several options for monitoring system performance "
+"and analyzing network traffic."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:31
+msgid "Traffic Server Monitoring Tools"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:33
+msgid ""
+"Traffic Server provides the following tools to monitor system performance "
+"and analyze network traffic:"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:36
+msgid ""
+"Traffic Server can send email that's triggered by alarms that signal any "
+"detected failure conditions; refer to `Working with Traffic Manager "
+"Alarms`_."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:38
+msgid ""
+"The Traffic Line command-line interface provides an alternative method of "
+"viewing Traffic Server performance and network traffic information; refer "
+"to `Viewing Statistics from Traffic Line`_."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:41
+msgid ""
+"The Traffic Shell command-line tool provides yet another alternative method "
+"of viewing Traffic Server performance and network traffic information; "
+"refer to `Starting Traffic Shell <../getting-started#StartTrafficShell>`_."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:48
+msgid "Working with Traffic Manager Alarms"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:50
+msgid ""
+"Traffic Server signals an alarm when it detects a problem. For example, the "
+"space allocated to event logs could be full or Traffic Server may not be "
+"able to write to a configuration file."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:55
+msgid "Configuring Traffic Server to Email Alarms"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:57
+msgid ""
+"To configure Traffic Server to send an email to a specific address whenever "
+"an alarm occurs, follow the steps below:"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:60
+msgid "In the :file:`records.config` file"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:61
+msgid ""
+"Set the :ts:cv:`proxy.config.alarm_email` variable to the email address "
+"alarms will be routed to."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:62
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:66
+msgid "Using a Script File for Alarms"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:68
+msgid ""
+"Alarm messages are built into Traffic Server - you cannot change them. "
+"However, you can write a script file to execute certain actions when an "
+"alarm is signaled. Traffic Server provides a sample script file named "
+"``example_alarm_bin.sh`` in the ``bin`` directory; simply modify the file "
+"to suit your needs."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:75
+msgid "Viewing Statistics from Traffic Line"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:77
+msgid ""
+"You can use the Traffic Line command-line interface to view statistics "
+"about Traffic Server performance and web traffic. In addition to viewing "
+"statistics, you can also configure, stop, and restart the Traffic Server "
+"system. For additional information, refer to :ref:`configure-using-traffic-"
+"line` and :ref:`traffic-line-commands`. You can view specific information "
+"about a Traffic Server node or cluster by specifying the variable that "
+"corresponds to the statistic you want to see."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:86
+msgid "**To view a statistic**, enter the following command:::"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:90
+msgid ""
+"where ``variable`` is the variable representing the information you want to "
+"view. For a list of variables you can specify, refer to :ref:`Traffic Line "
+"Variables <traffic-line-performance-statistics>`."
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:94
+msgid ""
+"For example, the following command displays the document hit rate for the "
+"Traffic Server node:::"
+msgstr ""
+
+#: ../../admin/monitoring-traffic.en.rst:99
+msgid ""
+"If the Traffic Server ``bin`` directory is not in your path, then prepend "
+"the Traffic Line command with ``./`` (for example: :option:`traffic_line -"
+"r` ``variable``)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/admin/performance-tuning.en.po b/doc/locale/ja/LC_MESSAGES/admin/performance-tuning.en.po
new file mode 100644
index 00000000..8a93b55a
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/performance-tuning.en.po
@@ -0,0 +1,72 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/performance-tuning.en.rst:5
+msgid "Performance Tuning"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:29
+msgid "Before you start"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:31
+msgid ""
+"There is no single option to that will guarantee maximum performance of "
+"Apache Traffic Server in every use-case. There are however numerous options "
+"that help tune its performance under different loads and in its - often "
+"vastly different - use-cases."
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:37
+msgid "Building Traffic Server"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:39
+msgid ""
+"A lot of speed can be gained or lost depending on the way ATS is built."
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:42
+msgid "Tuning the Machine"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:45
+msgid "Operating Systems Options"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:48
+msgid "Optimal Use of Memory"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:51
+msgid "Tuning different Thread types"
+msgstr ""
+
+#: ../../admin/performance-tuning.en.rst:54
+msgid "Tuning Plugin Execution"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/admin/reverse-proxy-http-redirects.en.po b/doc/locale/ja/LC_MESSAGES/admin/reverse-proxy-http-redirects.en.po
new file mode 100644
index 00000000..03b141a1
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/reverse-proxy-http-redirects.en.po
@@ -0,0 +1,626 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:5
+#: ../../admin/reverse-proxy-http-redirects.en.rst:26
+msgid "Reverse Proxy and HTTP Redirects"
+msgstr "リバースプロキシーと HTTP リダイレクト"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:28
+msgid ""
+"As a reverse proxy cache, Traffic Server serves requests on behalf of "
+"origin servers. Traffic Server is configured in such a way that it appears "
+"to clients like a normal origin server."
+msgstr ""
+"リバースプロキシーキャッシュとして、Traffic Server はオリジンサーバーの代わ"
+"りにリクエストに応えます。Traffic Server はクライアントには通常のオリジン"
+"サーバーに見えるように設定されます。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:37
+msgid "Understanding Reverse Proxy Caching"
+msgstr "リバースプロキシーキャッシュを理解する"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:39
+msgid ""
+"With **forward proxy caching**, Traffic Server handles web requests to "
+"distant origin servers on behalf of the clients requesting the content. "
+"**Reverse proxy caching** (also known as **server acceleration** or "
+"**virtual web hosting**) is different because Traffic Server acts as a "
+"proxy cache on behalf of the origin servers that store the content. Traffic "
+"Server is configured to be *the* origin server which the client is trying "
+"to connect to. In a typical scenario the advertised hostname of the origin "
+"server resolves to Traffic Server, which acts as the real origin server."
+msgstr ""
+"\\ **フォワードプロキシーキャッシュ**\\ の場合、Traffic Server はコンテンツ"
+"をリクエストしたクライアントに代わって遠くはなれたオリジンサーバーへのリクエ"
+"ストを取り扱います。\\ **リバースプロキシーキャッシュ**\\ (\\ **サーバーアク"
+"セラレーション**\\ や\\ **バーチャルウェブホスティング**\\ としても知られて"
+"います)では Traffic Server がコンテンツを持っているオリジンサーバーに代わっ"
+"てプロキシーキャッシュとして振る舞う点が異なります。Traffic Server はクライ"
+"アントが接続しようとしている\\ *その*\\ オリジンサーバーとなるように設定され"
+"ます。典型的なシナリオとしては、オリジンサーバーの広告されたホスト名が本当の"
+"オリジンサーバーのように振る舞う Traffic Server へ解決されます。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:50
+msgid "Reverse Proxy Solutions"
+msgstr "リバースプロキシーによる対応策"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:52
+msgid ""
+"There are many ways to use Traffic Server as a reverse proxy. Below are a "
+"few example scenarios."
+msgstr ""
+"Traffic Server をリバースプロキシーとして使う方法はたくさんあります。以下は"
+"いくつかの例です。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:55
+msgid "You can use Traffic Server in reverse proxy mode to:"
+msgstr "Traffic Server をリバースプロキシーモードとして使うことでできること"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:57
+msgid "Offload heavily-used origin servers"
+msgstr "使用頻度の高いオリジンサーバーの負荷を軽減する"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:58
+msgid "Deliver content efficiently in geographically distant areas"
+msgstr "地理的に離れた地域に効率的にコンテントを配信する"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:59
+msgid "Provide security for origin servers that contain sensitive information"
+msgstr "センシティブな情報を含むオリジンサーバーにセキュリティを提供する"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:63
+msgid "Offloading Heavily-Used Origin Servers"
+msgstr "使用頻度の高いオリジンサーバーの負荷の軽減"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:65
+msgid ""
+"Traffic Server can absorb requests to the main origin server and improve "
+"the speed & quality of web serving by reducing load and hot spots on backup "
+"origin servers. For example, a web hoster can maintain a scalable Traffic "
+"Server serving engine with a set of low-cost, low-performance, less-"
+"reliable PC origin servers as backup servers. In fact, a single Traffic "
+"Server can act as the virtual origin server for multiple backup origin "
+"servers, as shown in the figure below."
+msgstr ""
+"Traffic Server は主となるオリジンサーバーへのリクエストを吸収できるほか、"
+"バックアップオリジンサーバーの負荷とホットスポットを低減することでWeb の提供"
+"スピードと品質を向上させます。例えば、Web をホストする人は低コストで低パ"
+"フォーマンスで信頼性の低い PC によるオリジンサーバーをバックアップサーバーと"
+"したエンジンを提供するスケーラブルな Traffic Server を維持することができま"
+"す。実際、下記の図に示すように、1台の Traffic Server は複数のバックアップオ"
+"リジンサーバーのために仮想的なオリジンサーバーとして振る舞うことが可能です。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:77
+msgid "Traffic Server as reverse proxy for a pair of origin servers"
+msgstr "1組のオリジンサーバーのリバースプロキシーとして動く Traffic Server"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:80
+msgid "Delivering Content in Geographically-Dispersed Areas"
+msgstr "分散した地域でのコンテンツの配信"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:82
+msgid ""
+"Traffic Server can be used in reverse proxy mode to accelerate origin "
+"servers that provide content to areas not located within close geographical "
+"proximity. Caches are typically easier to manage and are more cost-"
+"effective than replicating data. For example, Traffic Server can be used as "
+"a mirror site on the far side of a trans-Atlantic link to serve users "
+"without having to fetch the request and content across expensive "
+"international connections. Unlike replication, for which hardware must be "
+"configured to replicate all data and to handle peak capacity, Traffic "
+"Server dynamically adjusts to optimally use the serving and storing "
+"capacity of the hardware. Traffic Server is also designed to keep content "
+"fresh automatically, thereby eliminating the complexity of updating remote "
+"origin servers."
+msgstr ""
+"Traffic Server は地理的に近接していないエリアにコンテンツを提供するオリジン"
+"サーバーを加速するためにリバースプロキシーモードで使用できます。キャッシュは"
+"レプリケーションよりもコストパフォーマンスが高く、一般的により簡単です。例え"
+"ば、高価な国をまたぐコネクションを使ってリクエストやコンテンツを取得すること"
+"なく大西洋の向こう側のミラーサイトとして Traffic Server を利用することができ"
+"ます。全データを複製しピークキャパシティも扱うレプリケーションとは異なり、"
+"Traffic Server はハードウェアのキャパシティを最適に利用するよう動的に順応し"
+"ます。Traffic Server は自動的にコンテンツを新鮮に保つようにも設計されている"
+"ので、リモートオリジンサーバーをアップデートする複雑さも除去できます。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:96
+msgid "Providing Security for an Origin Server"
+msgstr "オリジンサーバーへのセキュリティの提供"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:98
+msgid ""
+"Traffic Server can be used in reverse proxy mode to provide security for an "
+"origin server. If an origin server contains sensitive information that you "
+"want to keep secure inside your firewall, then you can use a Traffic Server "
+"outside the firewall as a reverse proxy for that origin server. When "
+"outside clients try to access the origin server, the requests instead go to "
+"Traffic Server. If the desired content is *not* sensitive, then it can be "
+"served from the cache. If the content is sensitive and not cacheable, then "
+"Traffic Server obtains the content from the origin server (the firewall "
+"allows only Traffic Server access to the origin server). The sensitive "
+"content resides on the origin server, safely inside the firewall."
+msgstr ""
+"Traffic Server はオリジンサーバーにセキュリティを提供するためにリバースプロ"
+"キシーモードで使用できます。もしファイアーウォールの内側にあるオリジンサー"
+"バーが安全にしておきたいセンシティブな情報を持っている場合、Traffic Server "
+"をファイアーウォールの外側におき、そのオリジンサーバーのためのリバースプロキ"
+"シーとして使用できます。外部のクライアントがそのオリジンサーバーにアクセスを"
+"試みるとリクエストは Traffic Server に向かいます。もし求められたコンテンツが"
+"センシティブでは\\ *ない*\\ 場合、それはキャッシュから提供されます。もしコン"
+"テンツがセンシティブでありキャッシュ不可能な場合、Traffic Server はオリジン"
+"サーバーからコンテンツを取得します(ファイアーウォールはオリジンサーバーへの"
+"アクセスを Traffic Server にのみ許します)。センシティブなコンテンツは安全な"
+"ファイアーウォールの内側のオリジンサーバー上にあります。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:111
+msgid "How Does Reverse Proxy Work?"
+msgstr "リバースプロキシーの動作"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:113
+msgid ""
+"When a browser makes a request, it normally sends that request directly to "
+"the origin server. When Traffic Server is in reverse proxy mode, it "
+"intercepts the request before it reaches the origin server. Typically, this "
+"is done by setting up the DNS entry for the origin server (i.e., the origin "
+"server's 'advertised' hostname) so it resolves to the Traffic Server IP "
+"address. When Traffic Server is configured as the origin server, the "
+"browser connects to Traffic Server rather than the origin server. For "
+"additional information, see `HTTP Reverse Proxy`_."
+msgstr ""
+"ブラウザーがリクエストを行うとき、通常はリクエストを直接オリジンサーバーに送"
+"信します。Traffic Server がリバースプロキシーモードになっているときはリクエ"
+"ストがオリジンサーバーに届く前に Traffic Server が横取りします。通常これはオ"
+"リジンサーバーの DNS エントリー(オリジンサーバーの'広告された'ホスト名)を "
+"Traffic Server の IP アドレスに解決されるように設定すれば完了です。Traffic "
+"Server がオリジンサーバーとして設定されている場合、ブラウザーはオリジンサー"
+"バーではなく Traffic Server に接続します。より詳しくは `HTTP リバースプロキ"
+"シー`_\\ を見てください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:122
+msgid ""
+"To avoid a DNS conflict, the origin server’s hostname and its advertised "
+"hostname must not be the same."
+msgstr ""
+"DNS の衝突を避けるため、オリジンサーバーのホスト名とその広告されたホスト名は"
+"同じであってはなりません。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:125
+msgid "HTTP Reverse Proxy"
+msgstr "HTTP リバースプロキシー"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:127
+msgid ""
+"In reverse proxy mode, Traffic Server serves HTTP requests on behalf of a "
+"web server. The figure below illustrates how Traffic Server in reverse "
+"proxy mode serves an HTTP request from a client browser."
+msgstr ""
+"リバースプロキシーモードでは、Traffic Server は HTTP リクエストをウェブサー"
+"バーの代わりに受け取ります。下の図は リバースプロキシーモードの Traffic "
+"Server がどのようにクライアントからの HTTP リクエストを受け取るのかを説明し"
+"ています。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:135
+msgid "HTTP reverse proxy"
+msgstr "HTTP リバースプロキシー"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:137
+msgid "The figure above demonstrates the following steps:"
+msgstr "上の図は次のステップを説明しています。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:139
+msgid ""
+"A client browser sends an HTTP request addressed to a host called ``www."
+"host.com`` on port 80. Traffic Server receives the request because it is "
+"acting as the origin server (the origin server’s advertised hostname "
+"resolves to Traffic Server)."
+msgstr ""
+"クライアントブラウザが ``www.host.com`` の 80 番ポートに HTTP リクエストを送"
+"信します。Traffic Server はオリジンサーバーとして振る舞っているのでこのリク"
+"エストを受け取ります(オリジンサーバーの広告されたホスト名は Traffic Server "
+"へ解決されるように広告されています)。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:143
+msgid ""
+"Traffic Server locates a map rule in the ``remap.config`` file and remaps "
+"the request to the specified origin server (``realhost.com``)."
+msgstr ""
+"Traffic Server は ``remap.config`` ファイル内にあるマップルールを見つけ、リ"
+"クエストを指定されたオリジンサーバー(``realhost.com``)にリマップします。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:145
+msgid ""
+"Traffic Server opens an HTTP connection to the origin server. (If the "
+"request is not able to be served from cache)"
+msgstr ""
+"Traffic Server は オリジンサーバーへの HTTP コネクションを開きます。(もしリ"
+"クエストにキャッシュから応えられなかった場合)"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:146
+msgid ""
+"If the request is a cache hit and the content is fresh, then Traffic Server "
+"sends the requested object to the client from the cache. Otherwise, Traffic "
+"Server obtains the requested object from the origin server, sends the "
+"object to the client, and saves a copy in its cache."
+msgstr ""
+"もしリクエストがキャッシュにヒットしコンテンツが新鮮であれば、Traffic "
+"Server はリクエストされたオブジェクトをキャッシュからクライアントに送信しま"
+"す。そうではなく、Traffic Server がオリジンサーバーからリクエストされたオブ"
+"ジェクトを取得した場合は、そのオブジェクトをクライアントに送信し、コピーを"
+"キャッシュに保存します。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:152
+msgid "To configure HTTP reverse proxy, you must perform the following tasks:"
+msgstr ""
+"HTTP リバースプロキシーを設定するためには、次のタスクを行う必要があります"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:154
+msgid ""
+"Create mapping rules in the :file:`remap.config` file (refer to `Creating "
+"Mapping Rules for HTTP Requests`_). ::"
+msgstr ""
+":file:`remap.config` ファイルにマッピングルールを作成する (`HTTP リクエスト"
+"用マッピングルールの作成`_\\ を参照してください) 。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:160
+msgid ""
+"Enable the reverse proxy option (refer to `Enabling HTTP Reverse Proxy`_)."
+msgstr ""
+"リバースプロキシーオプションを有効にする(`HTTP リバースプロキシーの有効化`_"
+"\\ を参照してください)。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:162
+msgid ""
+"In addition to the tasks above, you can also `Setting Optional HTTP Reverse "
+"Proxy Options`_."
+msgstr ""
+"上のタスクに加え、\\ `省略可能な HTTP リバースプロキシーオプションの設定`_"
+"\\ を行うこともできます。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:165
+msgid "Handling Origin Server Redirect Responses"
+msgstr "オリジンサーバーのリダイレクトレスポンスを扱う"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:167
+msgid ""
+"Origin servers often send redirect responses back to browsers redirecting "
+"them to different pages. For example, if an origin server is overloaded, "
+"then it might redirect browsers to a less loaded server. Origin servers "
+"also redirect when web pages that have moved to different locations. When "
+"Traffic Server is configured as a reverse proxy, it must readdress "
+"redirects from origin servers so that browsers are redirected to Traffic "
+"Server and *not* to another origin server."
+msgstr ""
+"オリジンサーバーはしばしばブラウザーを他のページにリダイレクトするためにリダ"
+"イレクトレスポンスを返します。例えば、オリジンサーバーが過負荷になった場合に"
+"は負荷の少ないサーバーへブラウザーをリダイレクトするかもしれません。オリジン"
+"サーバーはウェブページが異なる場所に移動された場合にもリダイレクトを行いま"
+"す。Traffic Server がリバースプロキシーとして設定されている場合、ブラウザー"
+"が他のオリジンサーバー\\ *ではなく* Traffic Server にリダイレクトされるよう"
+"に、リダイレクト先をオリジンサーバーから書き換えなければなりません。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:175
+msgid ""
+"To readdress redirects, Traffic Server uses reverse-map rules. Unless you "
+"have :ts:cv:`proxy.config.url_remap.pristine_host_hdr` enabled (the "
+"default) you should generally set up a reverse-map rule for each map rule. "
+"To create reverse-map rules, refer to `Using Mapping Rules for HTTP "
+"Requests`_."
+msgstr ""
+"リダイレクト先を書き直すために、Traffic Server はリバースマップルールを使用"
+"します。 :ts:cv:`proxy.config.url_remap.pristine_host_hdr` を有効にしていな"
+"い限り(それがデフォルトです)、一般的には各マップルールに対してリバースマップ"
+"ルールを用意すべきです。リバースマップルールを作成するには `HTTP リクエスト"
+"用マッピングルールの使用`_\\ を参照してください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:182
+msgid "Using Mapping Rules for HTTP Requests"
+msgstr "HTTP リクエスト用マッピングルールの使用"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:184
+msgid "Traffic Server uses two types of mapping rules for HTTP reverse proxy."
+msgstr ""
+"Traffic Server は HTTP リバースプロキシー用に2タイプのマッピングルールを使用"
+"します。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:187
+msgid "map rule"
+msgstr "マップルール"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:189
+msgid ""
+"A **map rule** translates the URL in client requests into the URL where the "
+"content is located. When Traffic Server is in reverse proxy mode and "
+"receives an HTTP client request, it first constructs a complete request URL "
+"from the relative URL and its headers. Traffic Server then looks for a "
+"match by comparing the complete request URL with its list of target URLs in "
+"the :file:`remap.config` file. For the request URL to match a target URL, "
+"the following conditions must be true:"
+msgstr ""
+"\\ **マップルール**\\ はクライアントのリクエストに含まれる URL をコンテンツ"
+"が存在する場所に変換します。Traffic Server がリバースプロキシーモードで "
+"HTTP クライアントリクエストを受け取ると、相対 URL とヘッダーから完全な URL "
+"を組み立てます。そしてその完全な URL と :file:`remap.config` ファイル内の"
+"ターゲット URL とを比較し、マッチするものを探します。ターゲット URL にマッチ"
+"するリクエスト URL は次の条件を満たさなければなりません"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:198
+msgid "The scheme of both URLs must be the same"
+msgstr "URL のスキームが同じであること"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:199
+msgid ""
+"The host in both URLs must be the same. If the request URL contains an "
+"unqualified hostname, then it will never match a target URL with a fully-"
+"qualified hostname."
+msgstr ""
+"URL のホストが同じであること。もしリクエスト URL が修飾されていないホスト名"
+"を含んでいる場合、完全修飾されたホスト名を含むターゲット URL にはマッチしま"
+"せん。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:202
+msgid ""
+"The ports in both URLs must be the same. If no port is specified in a URL, "
+"then the default port for the scheme of the URL is used."
+msgstr ""
+"ポートが同じであること。もし URL にポートが指定されていない場合、その URL ス"
+"キームのデフォルトのポートが使用されます。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:204
+msgid ""
+"The path portion of the target URL must match a prefix of the request URL "
+"path"
+msgstr ""
+"ターゲット URL のパス部分がリクエスト URL のパスの先頭と一致すること。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:207
+msgid ""
+"If Traffic Server finds a match, then it translates the request URL into "
+"the replacement URL listed in the map rule: it sets the host and path of "
+"the request URL to match the replacement URL. If the URL contains path "
+"prefixes, then Traffic Server removes the prefix of the path that matches "
+"the target URL path and substitutes it with the path from the replacement "
+"URL. If two mappings match a request URL, then Traffic Server applies the "
+"first mapping listed in the :file:`remap.config` file."
+msgstr ""
+"Traffic Server がマッチするものを見つけた場合、リクエスト URL をマップルール"
+"の置換 URL に変換します。リクエスト URL のホストとパスを置換 URL に一致する"
+"ようにセットします。もし URL がパスのプレフィックスを持っている場合、"
+"Traffic Server はターゲット URL のパスからプレフィックスを取り除き、置換 "
+"URL のパス部分と置き換えます。もしリクエスト URL にマッチするものが2つあった"
+"場合、Traffic Server は :file:`remap.config` ファイル内で先にマッチするほう"
+"を適用します。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:216
+msgid "reverse-map rule"
+msgstr "リバースマップルール"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:218
+msgid ""
+"A **reverse-map rule** translates the URL in origin server redirect "
+"responses to point to Traffic Server so that clients are **redirected** to "
+"Traffic Server instead of accessing an origin server directly. For example, "
+"if there is a directory ``/pub`` on an origin server at ``www.molasses."
+"com`` and a client sends a request to that origin server for ``/pub``, then "
+"the origin server might reply with a redirect by sending the Header "
+"``Location: http://www.test.com/pub/`` to let the client know that it was a "
+"directory it had requested, not a document (a common use of redirects is to "
+"normalize URLs so that clients can bookmark documents properly)."
+msgstr ""
+"\\ **リバースマップルール**\\ はクライアントがオリジンサーバーに直接アクセス"
+"する代わりに Traffic Server に\\ **リダイレクト**\\ されるようにするために、"
+"オリジンサーバーのリダイレクトレスポンス内の URL を Traffic Server に向かう"
+"ように変換します。例えば、``www.molasses.com`` というオリジンサーバーに ``/"
+"pub`` というディレクトリがあり、クライアントがそのオリジンサーバーに ``/"
+"pub`` のリクエストを送信すると、オリジンサーバーはリクエストされたものがド"
+"キュメントではなくディレクトリであることを知らせるために ``Loacation http://"
+"www.test.com/pub/`` ヘッダーによるリダイレクトで応答するかもしれません。(リ"
+"ダイレクトの一般的な使われ方はクライアントがドキュメントを正しくブックマーク"
+"できるようにする URL の正規化です。) 。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:229
+msgid ""
+"Traffic Server uses ``reverse_map`` rules to prevent clients (that receive "
+"redirects from origin servers) from bypassing Traffic Server and directly "
+"accessing the origin servers. In many cases the client would be hitting a "
+"wall because ``realhost.com`` actually does not resolve for the client. (E."
+"g.: Because it's running on a port shielded by a firewall, or because it's "
+"running on a non-routable LAN IP)"
+msgstr ""
+"Traffic Server は (オリジンサーバーからリダイレクト指示を受けた) クライアン"
+"トが Traffic Server をバイパスしてオリジンサーバーに直接アクセスすることを防"
+"ぐために ``reverse_map`` ルールを使用します。クライアントが壁にぶつかる多く"
+"のケースは ``realhost.com`` が実際にはクライアントには解決できない場合です。"
+"(例: ファイアーウォールでポートが塞がれている、到達不可能な LAN の IP で動い"
+"ている)"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:236
+msgid ""
+"Both map and reverse-map rules consist of a **target** (origin) URL and a "
+"**replacement** (destination) URL. In a **map rule**, the target URL points "
+"to Traffic Server and the replacement URL specifies where the original "
+"content is located. In a **reverse-map rule**, the target URL specifies "
+"where the original content is located and the replacement URL points to "
+"Traffic Server. Traffic Server stores mapping rules in the ``remap.config`` "
+"file located in the Traffic Server ``config`` directory."
+msgstr ""
+"マップルールとリバースマップルールはどちらも\\ **ターゲット** (オリジン) "
+"URL と\\ **置換**\\ (宛先) URL で構成されます。\\ **マップルール**\\ では、"
+"ターゲット URL は Traffic Server を指し、置換 URL オリジナルコンテントがある"
+"場所を指しています。\\ **リバースマップルール**\\ では、ターゲット URL はオ"
+"リジナルコンテントがある場所を指し、置換 URL は Traffic Server を指していま"
+"す。 Traffic Server はマッピングルールを Traffic Server の ``config`` ディレ"
+"クトリにある ``remap.config`` に保存します。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:246
+msgid "Creating Mapping Rules for HTTP Requests"
+msgstr "HTTP リクエスト用マッピングルールの作成"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:248
+msgid "To create mapping rules"
+msgstr "マッピングルールを作成するには"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:250
+msgid "Enter the map and reverse-map rules into the :file:`remap.config` file"
+msgstr ""
+":file:`remap.config` ファイルにマップルールとリバースマップルールを入力して"
+"ください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:251
+#: ../../admin/reverse-proxy-http-redirects.en.rst:263
+#: ../../admin/reverse-proxy-http-redirects.en.rst:306
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ""
+"設定の変更を適用するために :option:`traffic_line -x` コマンドを実行してくだ"
+"さい。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:255
+msgid "Enabling HTTP Reverse Proxy"
+msgstr "HTTP リバースプロキシーの有効化"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:257
+msgid "To enable HTTP reverse proxy, follow the steps below."
+msgstr "HTTP リバースプロキシーを有効にするには次のステップに従ってください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:259
+msgid "Edit the following variable in :file:`records.config`"
+msgstr ":file:`records.config` にある次の変数を編集してください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:261
+msgid ":ts:cv:`proxy.config.reverse_proxy.enabled`"
+msgstr ":ts:cv:`proxy.config.reverse_proxy.enabled`"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:267
+msgid "Setting Optional HTTP Reverse Proxy Options"
+msgstr "省略可能な HTTP リバースプロキシーオプションの設定"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:269
+msgid ""
+"Traffic Server provides several reverse proxy configuration options in :"
+"file:`records.config` that enable you to:"
+msgstr ""
+"Traffic Server は :file:`records.config` でいくつかのリバースプロキシー設定"
+"オプションを提供し次のことを可能にします。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:272
+msgid ""
+"Configure Traffic Server to retain the client host header information in a "
+"request during translation (:ts:cv:`proxy.config.url_remap."
+"pristine_host_hdr`)"
+msgstr ""
+"Traffic Server がリクエストを変換する際にホストヘッダーの情報を維持するよう"
+"に設定する (:ts:cv:`proxy.config.url_remap.pristine_host_hdr`)"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:275
+msgid ""
+"Configure Traffic Server to serve requests only to the origin servers "
+"listed in the mapping rules. As a result, requests to origin servers not "
+"listed in the mapping rules are not served. (:ts:cv:`proxy.config.url_remap."
+"remap_required`)"
+msgstr ""
+"Traffic Server がマッピングルールのリストに存在するオリジンサーバーへのリク"
+"エストのみに応えるように設定する。結果として、リストに存在しないオリジンサー"
+"バーへのリクエストは処理されません。(:ts:cv:`proxy.config.url_remap."
+"remap_required`)"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:278
+msgid ""
+"Specify an alternate URL to which incoming requests from older clients (i."
+"e., ones that do not provide ``Host`` headers) are directed (:ts:cv:`proxy."
+"config.header.parse.no_host_url_redirect`)"
+msgstr ""
+"古めのクライアントから届くリクエスト (例 ``Host`` ヘッダーを含まないもの) の"
+"リダイレクト先となる代替 URL を指定する(:ts:cv:`proxy.config.header.parse."
+"no_host_url_redirect`)"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:282
+msgid ""
+"Don't forget to run the command :option:`traffic_line -x` to apply the "
+"configuration changes."
+msgstr ""
+"設定の変更を適用するために :option:`traffic_line -x` コマンドを実行するのを"
+"忘れないでください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:286
+msgid "Redirecting HTTP Requests"
+msgstr "HTTP リクエストのリダイレクト"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:288
+msgid ""
+"You can configure Traffic Server to redirect HTTP requests without having "
+"to contact any origin servers. For example, if you redirect all requests "
+"for ``http://www.ultraseek.com`` to ``http://www.server1.com/products/"
+"portal/search/``, then all HTTP requests for ``www.ultraseek.com`` go "
+"directly to ``www.server1.com/products/portal/search``."
+msgstr ""
+"Traffic Server をどのオリジンサーバーにもコンタクトさせることなく HTTP リク"
+"エストをリダイレクトするように設定できます。例えば、``http://www.ultraseek."
+"com`` へのすべてのリクエストを```http://www.server1.com/products/portal/"
+"search/`` にリダイレクトする場合はすべての ``www.ultraseek.com`` への HTTP "
+"リクエストは直接 ``www.server1.com/products/portal/search`` に向かいます。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:295
+msgid ""
+"You can configure Traffic Server to perform permanent or temporary "
+"redirects. **Permanent redirects** notify the browser of the URL change (by "
+"returning the HTTP status code **``301``**) so that the browser can update "
+"bookmarks. **Temporary redirects** notify the browser of the URL change for "
+"the current request only (by returning the HTTP status code **``307``** )."
+msgstr ""
+"Traffic Server を恒久的または一時的なリダイレクトを行うように設定できま"
+"す。\\ **恒久的なリダイレクト**\\ はブラウザーがブックマークを更新できるよう"
+"にURL の変更を(HTTP ステータスコード **``301``** を返すことで) ブラウザーに"
+"通知します。\\ **一時的なリダイレクト**\\ は今回のリクエストに限った URL の"
+"変更を(HTTP ステータスコード **``307``** を返すことで)ブラウザーに通知しま"
+"す。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:302
+msgid "To set redirect rules"
+msgstr "リダイレクトルールをセットするには"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:304
+msgid ""
+"For each redirect you want to set enter a mapping rule in the :file:`remap."
+"config` file"
+msgstr ""
+"各リダイレクトごとに :file:`remap.config` ファイルにマッピングルールを入力し"
+"てください。"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:310
+msgid "Example"
+msgstr "例"
+
+#: ../../admin/reverse-proxy-http-redirects.en.rst:312
+msgid ""
+"The following permanently redirects all HTTP requests for ``www.server1."
+"com`` to ``www.server2.com``: ::"
+msgstr ""
+"次の設定は ``www.server1.com`` へのすべての HTTP リクエストを恒久的に ``www."
+"server2.com`` へリダイレクトします。 ::"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/security-options.en.po b/doc/locale/ja/LC_MESSAGES/admin/security-options.en.po
new file mode 100644
index 00000000..a099dfcf
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/security-options.en.po
@@ -0,0 +1,493 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/security-options.en.rst:4
+msgid "Security Options"
+msgstr "セキュリティオプション"
+
+#: ../../admin/security-options.en.rst:23
+msgid "Traffic Server provides a number of security features."
+msgstr "Traffic Server はいくつものセキュリティ機能を提供します。"
+
+#: ../../admin/security-options.en.rst:28
+msgid "Controlling Client Access to the Proxy Cache"
+msgstr "クライアントからプロキシーキャッシュへのアクセスの制御"
+
+#: ../../admin/security-options.en.rst:30
+msgid ""
+"You can configure Traffic Server to allow only certain clients to use the "
+"proxy cache by editing a configuration file."
+msgstr ""
+"設定ファイルを編集することで、信頼できるクライアントのみにプロキシーキャッ"
+"シュの使用を許すように Traffic Server を設定することができます。"
+
+#: ../../admin/security-options.en.rst:33
+msgid ""
+"Add a line in :file:`ip_allow.config` for each IP address or range of IP "
+"addresses allowed to access Traffic Server."
+msgstr ""
+":file:`ip_allow.config` に Traffic Server へのアクセスを許す個々の IP アドレ"
+"スもしくは IP アドレスの範囲を 1 行書き足してください。"
+
+#: ../../admin/security-options.en.rst:35
+#: ../../admin/security-options.en.rst:63
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ":option:`traffic_line -x` を実行して設定の変更を適用してください。"
+
+#: ../../admin/security-options.en.rst:41
+msgid "Configuring DNS Server Selection (Split DNS)"
+msgstr "DNS サーバー選択 (Split DNS) の設定"
+
+#: ../../admin/security-options.en.rst:43
+msgid ""
+"The **Split DNS** option enables you to configure Traffic Server to use "
+"multiple DNS servers, as dictated by your security requirements. For "
+"example, you might configure Traffic Server to use one set of DNS servers "
+"to resolve hostnames on your internal network, while allowing DNS servers "
+"outside the firewall to resolve hosts on the Internet. This maintains the "
+"security of your intranet, while continuing to provide direct access to "
+"sites outside your organization."
+msgstr ""
+"**Split DNS** オプションはセキュリティ要件に規定されたとおりに Traffic "
+"Server が複数の DNS サーバーを使用するように設定することを可能にします。例え"
+"ば、Traffic Server が内部ネットワークのホスト名を解決するために 1 組の DNS "
+"サーバーを使用する一方で、ファイアーウォールの外にある DNS サーバーにはイン"
+"ターネット上のホストの解決を許すように設定してもよいでしょう。これはイントラ"
+"ネットのセキュリティを維持すると同時に、組織外のサイトへの直接アクセスも提供"
+"し続けます。"
+
+#: ../../admin/security-options.en.rst:51
+msgid "To configure Split DNS, you must do the following:"
+msgstr "Split DNS を設定するには次のことをしなければなりません"
+
+#: ../../admin/security-options.en.rst:53
+msgid ""
+"Specify the rules for performing DNS server selection based on the "
+"destination domain, the destination host, or a URL regular expression."
+msgstr ""
+"DNS サーバーが宛先ドメイン、宛先ホストもしくは URL の正規表現をもとに動作す"
+"るためのルールを指定する"
+
+#: ../../admin/security-options.en.rst:56
+msgid "Enable the **Split DNS** option."
+msgstr "**Split DNS** オプションを有効化する"
+
+#: ../../admin/security-options.en.rst:58
+msgid "To do this, we"
+msgstr "これを行うためには"
+
+#: ../../admin/security-options.en.rst:60
+msgid "Add rules to :file:`splitdns.config`."
+msgstr ":file:`splitdns.config` にルールを追加してください。"
+
+#: ../../admin/security-options.en.rst:61
+msgid ""
+"In :file:`records.config` set the variable :ts:cv:`proxy.config.dns."
+"splitDNS.enabled` to ``1`` to enable split DNS."
+msgstr ""
+"Split DNS を有効にするために :file:`records.config` の:ts:cv:`proxy.config."
+"dns.splitDNS.enabled` 変数を ``1`` に設定してください。"
+
+#: ../../admin/security-options.en.rst:69
+msgid "Using SSL Termination"
+msgstr "SSL ターミネーションの使用"
+
+#: ../../admin/security-options.en.rst:71
+msgid ""
+"The Traffic Server **SSL termination** option enables you to secure "
+"connections in reverse proxy mode between a client and a Traffic Server and/"
+"or Traffic Server and an origin server."
+msgstr ""
+"Traffic Server の **SSL ターミネーション**\\ オプションはリバースプロキシー"
+"モードでクライアントと Traffic Server の間および/もしくは Traffic Server と"
+"オリジンサーバーの間の接続を安全にすることを可能にします。"
+
+#: ../../admin/security-options.en.rst:75
+msgid ""
+"The following sections describe how to enable and configure the SSL "
+"termination option."
+msgstr ""
+"次の章では SSL ターミネーションをどうのように設定し有効化するかを説明しま"
+"す。"
+
+#: ../../admin/security-options.en.rst:78
+msgid ""
+"Enable and configure SSL termination for client/Traffic Server "
+"connections: :ref:`client-and-traffic-server-connections`"
+msgstr ""
+"クライアントと Traffic Server 間の接続で SSL ターミネーションを設定し有効化"
+"するには :ref:`client-and-traffic-server-connections` を参照してください。"
+
+#: ../../admin/security-options.en.rst:80
+msgid ""
+"Enable and configure SSL termination for Traffic Server/origin server "
+"connections: :ref:`traffic-server-and-origin-server-connections`"
+msgstr ""
+"Traffic Server とオリジンサーバー間の接続で SSL ターミネーションを設定し有効"
+"化するには :ref:`traffic-server-and-origin-server-connections` を参照してく"
+"ださい。"
+
+#: ../../admin/security-options.en.rst:82
+msgid ""
+"Enable and configure SSL termination for both client/Traffic Server and "
+"Traffic Server/origin server connections:  :ref:`client-and-traffic-server-"
+"connections` :ref:`traffic-server-and-origin-server-connections`, "
+"respectively."
+msgstr ""
+"クライアントと Traffic Server 間の接続、Traffic Server とオリジンサーバー間"
+"の接続の両方で SSL ターミネーションを設定し有効化するには :ref:`client-and-"
+"traffic-server-connections` と :ref:`traffic-server-and-origin-server-"
+"connections` をそれぞれ参照してください。"
+
+#: ../../admin/security-options.en.rst:89
+msgid "Client and Traffic Server Connections"
+msgstr "クライアントと Traffic Server の接続"
+
+#: ../../admin/security-options.en.rst:91
+msgid ""
+"The figure below illustrates communication between a client and Traffic "
+"Server (and between Traffic Server and an origin server) when the SSL "
+"termination option is enabled & configured for **client/Traffic Server "
+"connections only**."
+msgstr ""
+"以下の図は\\ **クライアントと Traffic Server の間の接続だけ**\\ で SSL ター"
+"ミネーションオプションを有効化し、設定した際のクライアントと Traffic Server "
+"の通信 (Traffic Server とオリジンサーバー間も含む) を説明します。"
+
+#: ../../admin/security-options.en.rst:100
+msgid "Client and Traffic Server communication using SSL termination"
+msgstr "SSL ターミネーションを使用したクライアントと Traffic Server の通信"
+
+#: ../../admin/security-options.en.rst:102
+#: ../../admin/security-options.en.rst:167
+msgid "The figure above depicts the following:"
+msgstr "上の図は次のことを説明しています"
+
+#: ../../admin/security-options.en.rst:104
+msgid ""
+"The client sends an HTTPS request for content. Traffic Server receives the "
+"request and performs the SSL 'handshake' to authenticate the client "
+"(depending on the authentication options configured) and determine the "
+"encryption method that will be used. If the client is allowed access, then "
+"Traffic Server checks its cache for the requested content."
+msgstr ""
+"クライアントがコンテンツのために HTTPS リクエストを送信します。Traffic "
+"Server はリクエストを受け取り、クライアントの認証 (認証オプションの設定によ"
+"ります) と使用される暗号化方式の決定をするために SSL 'ハンドシェイク' を行い"
+"ます。クライアントがアクセスを許されると、Traffic Server はリクエストされた"
+"コンテンツのキャッシュを確認します。"
+
+#: ../../admin/security-options.en.rst:106
+msgid ""
+"If the request is a cache hit and the content is fresh, then Traffic Server "
+"encrypts the content and sends it to the client. The client decrypts the "
+"content (using the method determined during the handshake) and displays it."
+msgstr ""
+"リクエストがキャッシュヒットかつコンテンツが新鮮な場合、Traffic Server はコ"
+"ンテンツを暗号化しクライアントに送信します。クライアントはコンテンツを (ハン"
+"ドシェイクの間に決定した方式で) 復号化し表示します。"
+
+#: ../../admin/security-options.en.rst:108
+msgid ""
+"If the request is a cache miss or cached content is stale, then Traffic "
+"Server communicates with the origin server via HTTP and obtains a plain "
+"text version of the content. Traffic Server saves the plain text version of "
+"the content in its cache, encrypts the content, and sends it to the client. "
+"The client decrypts and displays the content."
+msgstr ""
+"リクエストがキャッシュミスもしくはキャッシュされたコンテンツが新鮮でない場"
+"合、Traffic Server はオリジンサーバーと HTTP で通信し平文のコンテンツを取得"
+"します。Traffic Server は平文のコンテンツをキャッシュに保存し、コンテンツを"
+"暗号化し、クライアントに送信します。クライアントはコンテンツを復号化し表示し"
+"ます。"
+
+#: ../../admin/security-options.en.rst:110
+msgid ""
+"To configure Traffic Server to use the SSL termination option for client/"
+"Traffic Server connections, you must do the following:"
+msgstr ""
+"Traffic Server がクライアントと Traffic Server の間の接続で SSL ターミネー"
+"ションオプションを使用するように設定するには、次のことを行わなければなりませ"
+"ん"
+
+#: ../../admin/security-options.en.rst:113
+msgid ""
+"Obtain and install an SSL server certificate from a recognized certificate "
+"authority. The SSL server certificate contains information that enables the "
+"client to authenticate Traffic Server and exchange encryption keys."
+msgstr ""
+"SSL サーバー証明書を認められた認証局から取得しインストールする。SSL サーバー"
+"証明書はクライアントが Traffic Server を認証し暗号化鍵を交換することを可能に"
+"する情報を含んでいます。"
+
+#: ../../admin/security-options.en.rst:117
+#: ../../admin/security-options.en.rst:194
+msgid "Configure SSL termination options:"
+msgstr "SSL ターミネーションオプションを設定する"
+
+#: ../../admin/security-options.en.rst:119
+msgid ""
+"Set the port number used for SSL communication using :ts:cv:`proxy.config."
+"http.server_ports`."
+msgstr ""
+":ts:cv:`proxy.config.http.server_ports` で SSL 通信に使用されるポート番号を"
+"設定する"
+
+#: ../../admin/security-options.en.rst:122
+msgid ""
+"(Optional) Configure the use of client certificates: Client certificates "
+"are located on the client. If you configure Traffic Server to require "
+"client certificates, then Traffic Server verifies the client certificate "
+"during the SSL handshake that authenticates the client. If you configure "
+"Traffic Server to *not* require client certificates, then access to Traffic "
+"Server is managed through other Traffic Server options that have been set "
+"(such as rules in :file:`ip_allow.config`)."
+msgstr ""
+"(任意) クライアント証明書の使用を設定する。クライアント証明書はクライアント"
+"上に置かれます。Traffic Server がクライアント証明書を必要とするように設定す"
+"ると Traffic Server は クライアントを認証する SSL ハンドシェイクの中でクライ"
+"アント証明書を検証します。Traffic Server がクライアント証明書を必要と\\ *し"
+"ない*\\ ように設定すると、Traffic Server へのアクセスは (:file:`ip_allow."
+"config` のルールなどの) 他に設定されている Traffic Server オプションによって"
+"管理されます。"
+
+#: ../../admin/security-options.en.rst:130
+msgid ""
+"(Optional) Configure the use of Certification Authorities (CAs). CAs add "
+"security by verifying the identity of the person requesting a certificate."
+msgstr ""
+"(任意) 認証局 (CA) の使用を設定する。認証局は証明を要求した人の同一性を検証"
+"することでセキュリティを追加します。"
+
+#: ../../admin/security-options.en.rst:134
+msgid "In order to accomplish this, we"
+msgstr "これを実現するためには"
+
+#: ../../admin/security-options.en.rst:136
+msgid ""
+"Edit the following variables in the :ref:`records-config-ssl-termination` "
+"section of :file:`records.config`"
+msgstr ""
+":file:`records.config` の :ref:`records-config-ssl-termination` の章にある次"
+"の変数を編集してください。"
+
+#: ../../admin/security-options.en.rst:139
+#: ../../admin/security-options.en.rst:217
+msgid ":ts:cv:`proxy.config.http.server_ports`"
+msgstr ":ts:cv:`proxy.config.http.server_ports`"
+
+#: ../../admin/security-options.en.rst:140
+msgid ":ts:cv:`proxy.config.ssl.client.certification_level`"
+msgstr ":ts:cv:`proxy.config.ssl.client.certification_level`"
+
+#: ../../admin/security-options.en.rst:141
+msgid ":ts:cv:`proxy.config.ssl.server.cert.path`"
+msgstr ":ts:cv:`proxy.config.ssl.server.cert.path`"
+
+#: ../../admin/security-options.en.rst:142
+msgid ":ts:cv:`proxy.config.ssl.server.private_key.path`"
+msgstr ":ts:cv:`proxy.config.ssl.server.private_key.path`"
+
+#: ../../admin/security-options.en.rst:143
+msgid ":ts:cv:`proxy.config.ssl.CA.cert.path`"
+msgstr ":ts:cv:`proxy.config.ssl.CA.cert.path`"
+
+#: ../../admin/security-options.en.rst:145
+#: ../../admin/security-options.en.rst:226
+msgid ""
+"Run the command :option:`traffic_line -L` to restart Traffic Server on the "
+"local node or :option:`traffic_line -M` to restart Traffic Server on all "
+"the nodes in a cluster."
+msgstr ""
+"ローカルノード上の Traffic Server をリスタートするために :option:"
+"`traffic_line -L` を、もしくはクラスター内のすべての Traffic Server をリス"
+"タートするためには :option:`traffic_line -M` を実行してください。"
+
+#: ../../admin/security-options.en.rst:155
+msgid "Traffic Server and Origin Server Connections"
+msgstr "Traffic Server とオリジンサーバーの接続"
+
+#: ../../admin/security-options.en.rst:157
+msgid ""
+"The figure below illustrates communication between Traffic Server and an "
+"origin server when the SSL termination option is enabled for **Traffic "
+"Server/origin server connections**."
+msgstr ""
+"以下の図は SSL ターミネーションオプションを \\ **Traffic Server とオリジン"
+"サーバーの間の接続**\\ で有効化した際の Traffic Server とオリジンサーバーの"
+"通信を説明します。"
+
+#: ../../admin/security-options.en.rst:165
+msgid "Traffic Server and origin server communication using SSL termination"
+msgstr "SSL ターミネーションを使用したTraffic Server とオリジンサーバーの通信"
+
+#: ../../admin/security-options.en.rst:169
+msgid ""
+"**Step 1:** If a client request is a cache miss or is stale, then Traffic "
+"Server sends an HTTPS request for the content to the origin server. The "
+"origin server receives the request and performs the SSL handshake to "
+"authenticate Traffic Server and determine the encryption method to be used."
+msgstr ""
+"**ステップ 1:** クライアントのリクエストがキャッシュミスもしくは新鮮でない場"
+"合、Traffic Server は コンテンツのための HTTPS リクエストをオリジンサーバー"
+"に送信します。オリジンサーバーはリクエストを受け取り、Traffic Server の認証"
+"と使用される暗号化方式の決定をするために SSL ハンドシェイク を行います。"
+
+#: ../../admin/security-options.en.rst:175
+msgid ""
+"**Step 2:** If Traffic Server is allowed access, then the origin server "
+"encrypts the content and sends it to Traffic Server, where it is decrypted "
+"(using the method determined during the handshake). A plain text version of "
+"the content is saved in the cache."
+msgstr ""
+"**ステップ 2:** Traffic Server がアクセスを許されると、オリジンサーバーはコ"
+"ンテンツを暗号化して Traffic Server に送信し、そこで (ハンドシェイクの中で決"
+"定した方式を使用して) 復号化されます。平文のコンテンツはキャッシュに保存され"
+"ます。"
+
+#: ../../admin/security-options.en.rst:180
+msgid ""
+"**Step 3:** If SSL termination is enabled for client /Traffic Server "
+"connections, then Traffic Server re-encrypts the content and sends it to "
+"the client via HTTPS, where it is decrypted and displayed. If SSL "
+"termination is not enabled for client/Traffic Server connections, then "
+"Traffic Server sends the plain text version of the content to the client "
+"via HTTP."
+msgstr ""
+"**ステップ 3:** SSL ターミネーションがクライアントと Traffic Server の間で有"
+"効化されている場合、Traffic Server はコンテンツを再暗号化して HTTPS でクライ"
+"アントに送信し、そこで復号化され表示されます。SSL ターミネーションがクライア"
+"ントと Traffic Server の間で有効化されていない場合、Traffic Server は平文の"
+"コンテンツを HTTP でクライアントに送信します。"
+
+#: ../../admin/security-options.en.rst:187
+msgid ""
+"To configure Traffic Server to use the SSL termination option for Traffic "
+"Server and origin server connections, you must do the following:"
+msgstr ""
+"Traffic Server が Traffic Server とオリジンサーバーの間で SSL ターミネーショ"
+"ンを使用するように設定するには、次のことを行わなければなりません"
+
+#: ../../admin/security-options.en.rst:190
+msgid ""
+"Obtain and install an SSL client certificate from a recognized certificate "
+"authority. The SSL client certificate contains information that allows the "
+"origin server to authenticate Traffic Server (the client certificate is "
+"optional)."
+msgstr ""
+"SSL クライアント証明書を認められた認証局から取得しインストールする。SSL クラ"
+"イアント証明書はオリジンサーバーが Traffic Server を認証することを可能にする"
+"情報を含んでいます (クライアント証明書は任意です) 。"
+
+#: ../../admin/security-options.en.rst:195
+msgid "Enable the SSL termination option."
+msgstr "SSL ターミネーションオプションを有効化する"
+
+#: ../../admin/security-options.en.rst:197
+msgid "Set the port number used for SSL communication."
+msgstr "SSL 通信に使用されるポート番号を設定する。"
+
+#: ../../admin/security-options.en.rst:198
+msgid ""
+"Specify the filename and location of the SSL client certificate (if you "
+"choose to use a client certificate)."
+msgstr ""
+"SSL クライアント証明書のファイル名と場所を指定する (クライアント証明書を使用"
+"することを選択する場合) 。"
+
+#: ../../admin/security-options.en.rst:200
+msgid ""
+"Specify the filename and location of the Traffic Server private key (if the "
+"private key is not located in the client certificate file). Traffic Server "
+"uses its private key during the SSL handshake to decrypt the session "
+"encryption keys. The private key must be stored and protected against theft."
+msgstr ""
+"Traffic Server の秘密鍵のファイル名と場所を指定する (秘密鍵がクライアント証"
+"明書ファイル内に無い場合) 。Traffic Server はセッション暗号化鍵を復号化する"
+"ために SSL ハンドシェイクの中で自身の秘密鍵を使用します。秘密鍵は盗難から保"
+"護されて置かれていなければなりません。"
+
+#: ../../admin/security-options.en.rst:205
+msgid ""
+"Configure the use of CAs. CAs allow the Traffic Server that's acting as a "
+"client to verify the identity of the server with which it is communicating, "
+"thereby enabling exchange of encryption keys."
+msgstr ""
+"CA の使用を設定する。CA は 通信しているサーバーの同一性を検証するために "
+"Traffic Server がクライアントとして振る舞うことを許し、それによって暗号化鍵"
+"の交換を可能にしています。"
+
+#: ../../admin/security-options.en.rst:209
+msgid "In order to accomplish this, we:"
+msgstr "これを実現するためには"
+
+#: ../../admin/security-options.en.rst:213
+msgid ""
+"Edit the following variables in the :ref:`records-config-ssl-termination` "
+"section of :file:`records.config`:"
+msgstr ""
+":file:`records.config`: の :ref:`records-config-ssl-termination` の章にある"
+"次の変数を編集してください。"
+
+#: ../../admin/security-options.en.rst:218
+msgid ":ts:cv:`proxy.config.ssl.client.verify.server`"
+msgstr ":ts:cv:`proxy.config.ssl.client.verify.server`"
+
+#: ../../admin/security-options.en.rst:219
+msgid ":ts:cv:`proxy.config.ssl.client.cert.filename`"
+msgstr ":ts:cv:`proxy.config.ssl.client.cert.filename`"
+
+#: ../../admin/security-options.en.rst:220
+msgid ":ts:cv:`proxy.config.ssl.client.cert.path`"
+msgstr ":ts:cv:`proxy.config.ssl.client.cert.path`"
+
+#: ../../admin/security-options.en.rst:221
+msgid ":ts:cv:`proxy.config.ssl.client.private_key.filename`"
+msgstr ":ts:cv:`proxy.config.ssl.client.private_key.filename`"
+
+#: ../../admin/security-options.en.rst:222
+msgid ":ts:cv:`proxy.config.ssl.client.private_key.path`"
+msgstr ":ts:cv:`proxy.config.ssl.client.private_key.path`"
+
+#: ../../admin/security-options.en.rst:223
+msgid ":ts:cv:`proxy.config.ssl.client.CA.cert.filename`"
+msgstr ":ts:cv:`proxy.config.ssl.client.CA.cert.filename`"
+
+#: ../../admin/security-options.en.rst:224
+msgid ":ts:cv:`proxy.config.ssl.client.CA.cert.path`"
+msgstr ":ts:cv:`proxy.config.ssl.client.CA.cert.path`"
+
+#: ../../admin/security-options.en.rst:120
+msgid ""
+"Edit :file:`ssl_multicert.config` to specify the filename and location of "
+"the SSL certificates and private keys."
+msgstr ""
+"SSL 証明書と秘密鍵のファイル名と場所を指定するために :file:`ssl_multicert."
+"config` を編集する"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/traffic-server-error-messages.en.po b/doc/locale/ja/LC_MESSAGES/admin/traffic-server-error-messages.en.po
new file mode 100644
index 00000000..8e907c5c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/traffic-server-error-messages.en.po
@@ -0,0 +1,872 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/traffic-server-error-messages.en.rst:4
+msgid "Error Messages"
+msgstr "エラーメッセージ"
+
+#: ../../admin/traffic-server-error-messages.en.rst:27
+msgid "Traffic Server Error Messages"
+msgstr "Traffic Server のエラーメッセージ"
+
+#: ../../admin/traffic-server-error-messages.en.rst:29
+msgid ""
+"The following table lists messages that can appear in system log files. "
+"This list is not exhaustive; it simply describes common warning messages "
+"that can occur and which might require your attention."
+msgstr ""
+"次の表はシステムログファイルに出てくるメッセージを一覧表示しています。この一"
+"覧は網羅的なものではなく、単に一般的な発生しうる注目を要するであろう警告メッ"
+"セージを説明しているだけです。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:34
+msgid "Traffic Server Process Fatal"
+msgstr "Traffic Server プロセスの致命的状況"
+
+#: ../../admin/traffic-server-error-messages.en.rst:38
+msgid "``Accept port is not between 1 and 65535. Please check configuration``"
+msgstr ""
+"``Accept port is not between 1 and 65535. Please check configuration``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:37
+msgid ""
+"The port specified in the :file:`records.config` file that accepts incoming "
+"HTTP requests is not valid."
+msgstr ""
+":file:`records.config` ファイルに指定されている入ってきた HTTP リクエストを"
+"受け入れるポートが妥当ではありません。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:43
+msgid "``Self loop is detected in parent proxy configuration``"
+msgstr "``Self loop is detected in parent proxy configuration``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:41
+msgid ""
+"The name and port of the parent proxy match that of Traffic Server. This "
+"creates a loop when Traffic Server attempts to send the request to the "
+"parent proxy."
+msgstr ""
+"親プロキシーの名前とポートが Traffic Server のものと一致しています。これは "
+"Traffic Server が親プロキシーにリクエストを送信しようとする際にループを引き"
+"起こします。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:46
+msgid "Traffic Server Warnings"
+msgstr "Traffic Server の警告"
+
+#: ../../admin/traffic-server-error-messages.en.rst:49
+msgid "``<Logfile> error: error_number``"
+msgstr "``<Logfile> error: error_number``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:49
+msgid "Generic logging error."
+msgstr "一般的なロギングエラーです。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:52
+msgid ""
+"``Bad cluster major version range <version1-version2> for node <IP address> "
+"connect failed``"
+msgstr ""
+"``Bad cluster major version range <version1-version2> for node <IP address> "
+"connect failed``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:52
+msgid "Incompatible software versions causing a problem."
+msgstr "互換性の無いソフトウェアのバージョンが問題を引き起こしています。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:56
+msgid "``Connect by disallowed client <IP address>, closing``"
+msgstr "``Connect by disallowed client <IP address>, closing``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:55
+msgid ""
+"The specified client is not allowed to connect to Traffic Server; the "
+"client IP address is not listed in the ``ip_allow.config`` file."
+msgstr ""
+"指定されたクライアントは Traffic Server へのアクセスを許可されていません。ク"
+"ライアントの IP アドレスが ``ip_allow.config`` ファイル内に記載されていませ"
+"ん。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:59
+msgid "``Could not rename log <filename> to <rolled filename>``"
+msgstr "``Could not rename log <filename> to <rolled filename>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:59
+msgid "System error when renaming log file during roll."
+msgstr "ロール中にログファイルをリネームしようとした際のシステムエラーです。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:62
+msgid "``Did <this amount> of backup; still to do <remaining amount>``"
+msgstr "``Did <this amount> of backup; still to do <remaining amount>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:62
+msgid "Congestion is approaching."
+msgstr "輻輳が発生しそうです。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:65
+msgid ""
+"``Different clustering minor versions <version1, version2> for node <IP "
+"address> continuing``"
+msgstr ""
+"``Different clustering minor versions <version1, version2> for node <IP "
+"address> continuing``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:65
+msgid "Incompatible software versions are causing a problem."
+msgstr "互換性の無いソフトウェアのバージョンが問題を引き起こしています。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:69
+msgid "``Log format symbol <symbol name> not found``"
+msgstr "``Log format symbol <symbol name> not found``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:68
+msgid ""
+"Custom log format references a field symbol that does not exist. Refer to :"
+"ref:`event-logging-formats`."
+msgstr ""
+"カスタムログのフォーマットが存在しないフィールドを参照しています。 :ref:"
+"`event-logging-formats` を参照してください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:72
+msgid "``Missing field for field marker``"
+msgstr "``Missing field for field marker``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:72
+msgid "Error reading a log buffer."
+msgstr "ログバッファーを読み込み中のエラーです。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:75
+msgid "``Unable to open log file <filename>, errno=<error number>``"
+msgstr "``Unable to open log file <filename>, errno=<error number>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:75
+msgid "Cannot open the log file."
+msgstr "ログファイルが開けません。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:79
+msgid "``Error accessing disk <disk name>``"
+msgstr "``Error accessing disk <disk name>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:78
+msgid ""
+"Traffic Server might have a cache read problem. You might need to replace "
+"the disk."
+msgstr ""
+"Traffic Server がキャッシュの読み込みに問題を抱えているかもしれません。ディ"
+"スクを交換する必要があるかもしれません。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:84
+msgid "``Too many errors accessing disk <disk name>: declaring disk bad``"
+msgstr "``Too many errors accessing disk <disk name>: declaring disk bad``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:82
+msgid ""
+"Traffic Server is not using the cache disk because it encountered too many "
+"errors. The disk might be corrupt and might have to be replaced."
+msgstr ""
+"Traffic Server は過度なエラーに遭遇したためキャッシュディスクを使用していま"
+"せん。ディスクが壊れているかもしれないので交換する必要があるかもしれません。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:89
+msgid "``No cache disks specified in storage.config file: cache disabled``"
+msgstr "``No cache disks specified in storage.config file: cache disabled``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:87
+msgid ""
+"The Traffic Server ``storage.config`` file does not list any cache disks; "
+"Traffic Server is running in proxy-only mode. You must add the disks you "
+"want to use for the cache to :file:`storage.config`."
+msgstr ""
+"Traffic Server の ``storage.config`` ファイルにキャッシュディスクが記載され"
+"ていません。Traffic Server はプロキシーモードで動作しています。キャッシュに"
+"使用したいディスクを :file:`storage.config` に記載しなくてななりません。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:92
+msgid "Traffic Server Alarm Messages"
+msgstr "Traffic Server の警報メッセージ"
+
+#: ../../admin/traffic-server-error-messages.en.rst:96
+msgid "``[Rollback::Rollback] Config file is read-only: <filename>``"
+msgstr "``[Rollback::Rollback] Config file is read-only: <filename>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:95
+#: ../../admin/traffic-server-error-messages.en.rst:103
+msgid ""
+"Go to the Traffic Server ``config`` directory and check the indicated file "
+"permissions; change if necessary."
+msgstr ""
+"Traffic Server の ``config`` ディレクトリで指示されたファイルのパーミッショ"
+"ンを確認し、必要であれば変更してください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:100
+msgid ""
+"``[Rollback::Rollback] Unable to read or write config file <filename>``"
+msgstr ""
+"``[Rollback::Rollback] Unable to read or write config file <filename>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:99
+msgid ""
+"Go to the Traffic Server ``config`` directory and make sure the indicated "
+"file exists. Check permissions and modify if necessary."
+msgstr ""
+"Traffic Server の ``config`` ディレクトリで指示されたファイルが存在すること"
+"を確認してください。パーミッションを確認し、必要であれば変更してください"
+
+#: ../../admin/traffic-server-error-messages.en.rst:104
+msgid "``[Traffic Manager] Configuration File Update Failed: <error number>``"
+msgstr ""
+"``[Traffic Manager] Configuration File Update Failed: <error number>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:108
+msgid "``[Traffic Manager] Mgmt <==>Proxy conn. closed``"
+msgstr "``[Traffic Manager] Mgmt <==>Proxy conn. closed``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:107
+msgid ""
+"An informational message to inform you that the :program:`traffic_server` "
+"process is down."
+msgstr ""
+":program:`traffic_server` プロセスが落ちていることを知らせるための情報提供"
+"メッセージです。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:114
+msgid "``Access logging suspended - configured space allocation exhausted.``"
+msgstr "``Access logging suspended - configured space allocation exhausted.``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:111
+msgid ""
+"The space allocated to the event log files is full; you must either "
+"increase the space or delete some log files so that access logging to "
+"continue. To prevent this error, consider rolling log files more frequently "
+"and enabling the autodelete feature."
+msgstr ""
+"イベントログファイルに割り当てられた領域が満杯です。アクセスのロギングを続け"
+"るために領域を増やすかいくつかのログファイルを削除しなければなりません。この"
+"エラーを防ぐためには、ログファイルをより頻繁にロールし、自動削除機能を有効化"
+"することを検討してください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:120
+msgid "``Access logging suspended - no more space on the logging partition.``"
+msgstr ""
+"``Access logging suspended - no more space on the logging partition.``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:117
+msgid ""
+"The entire partition containing the event logs is full; you must delete or "
+"move some log files to enable access logging to continue. To prevent this "
+"error, consider rolling log files more frequently and enabling the "
+"autodelete feature."
+msgstr ""
+"イベントログを含むパーティション全体が満杯です。アクセスのロギングを続けるた"
+"めにいくつかのログファイルを削除もしくは移動しなければなりません。このエラー"
+"を防ぐためには、ログファイルをより頻繁にロールし、自動削除機能を有効化するこ"
+"とを検討してください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:125
+msgid "``Created zero length place holder for config file <filename>``"
+msgstr "``Created zero length place holder for config file <filename>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:123
+msgid ""
+"Go to the Traffic Server ``config`` directory and check the indicated file. "
+"If it is indeed zero in length, then use a backup copy of the configuration "
+"file."
+msgstr ""
+"Traffic Server の ``config`` ディレクトリで指示されたファイルを確認してくだ"
+"さい。もしたしかに長さがゼロの場合、設定ファイルのバックアップコピーを使用し"
+"てください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:128
+msgid "``Traffic Server could not open logfile <filename>``"
+msgstr "``Traffic Server could not open logfile <filename>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:128
+msgid "Check permissions for the indicated file and the logging directory."
+msgstr ""
+"指示されたファイルとロギングディレクトリのパーミッションを確認してください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:132
+msgid ""
+"``Traffic Server failed to parse line <line number> of the logging config "
+"file <filename>``"
+msgstr ""
+"``Traffic Server failed to parse line <line number> of the logging config "
+"file <filename>``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:131
+msgid ""
+"Check your custom log configuration file; there could be syntax errors. "
+"Refer to :ref:`custom-logging-fields` for correct custom log format fields."
+msgstr ""
+"カスタムログ設定ファイルを確認してください。シンタックスエラーがあるかもしれ"
+"ません。正しいカスタムログのフォーマットフィールドについては :ref:`custom-"
+"logging-fields` を参照してください。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:137
+msgid ""
+"``vip_config binary is not setuid root, manager will be unable to enable "
+"virtual ip addresses``"
+msgstr ""
+"``vip_config binary is not setuid root, manager will be unable to enable "
+"virtual ip addresses``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:135
+msgid ""
+"The :program:`traffic_manager` process is not able to set virtual IP "
+"addresses. You must ``setuid root`` for the ``vip_config`` file in the "
+"Traffic Server ``bin`` directory."
+msgstr ""
+":program:`traffic_manager` プロセスがバーチャル IP アドレス を設定できませ"
+"ん。Traffic Server の ``bin`` ディレクトリにある ``vip_config`` ファイルに対"
+"して ``setuid root`` しなければなりません。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:140
+msgid "HTML Messages Sent to Clients"
+msgstr "クライアントに送信される HTML メッセージ"
+
+#: ../../admin/traffic-server-error-messages.en.rst:142
+msgid ""
+"Traffic Server returns detailed error messages to browser clients when "
+"there are problems with the HTTP transactions requested by the browser. "
+"These Traffic Server response messages correspond to standard HTTP response "
+"codes, but provide more information. A list of the more frequently-"
+"encountered HTTP response codes is provided in :ref:`standard-http-response-"
+"messages`. You can customize the Traffic Server response messages, if "
+"desired."
+msgstr ""
+"Traffic Server は ブラウザからリクエストされた HTTP トランザクションに問題が"
+"ある場合に、クライアントに詳細なエラーメッセージを返します。これらの "
+"Traffice Server のレスポンスメッセージは標準的な HTTP レスポンスコードに対応"
+"しますが、より多くの情報を提供します。より頻繁に遭遇する HTTP レスポンスコー"
+"ドの一覧は :ref:`standard-http-response-messages` で提供されています。もし望"
+"むなら Traffic Server のレスポンスメッセージをカスタマイズすることができま"
+"す。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:149
+msgid ""
+"The following table lists the hard-coded Traffic Server HTTP messages, with "
+"corresponding HTTP response codes and customizable files."
+msgstr ""
+"次の表はハードコードされた Traffic Server の HTTP メッセージを、対応する "
+"HTTP レスポンスコードとカスタマイズ可能なファイルとともに一覧表示していま"
+"す。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:155
+msgid "``Access Denied``"
+msgstr "``Access Denied``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:153
+msgid ""
+"``403`` You are not allowed to access the document at location ``URL``. "
+"``access#denied``"
+msgstr ""
+"``403`` You are not allowed to access the document at location ``URL``. (あ"
+"なたは ``URL`` にあるドキュメントへのアクセスが許されていません。) "
+"``access#denied``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:160
+msgid "``Cache Read Error``"
+msgstr "``Cache Read Error``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:158
+msgid ""
+"``500`` Error reading from cache; please retry request. ``cache#read_error``"
+msgstr ""
+"``500`` Error reading from cache; please retry request. (キャッシュ読み込み"
+"中のエラーです。リクエストをリトライしてください。) ``cache#read_error``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:165
+msgid "``Connection Timed Out``"
+msgstr "``Connection Timed Out``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:163
+msgid ""
+"``504`` Too much time has elapsed since the server has sent data. "
+"``timeout#inactivity``"
+msgstr ""
+"``504`` Too much time has elapsed since the server has sent data. (サーバー"
+"がデータを送信してから時間が経過しすぎました。) ``timeout#inactivity``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:170
+msgid "``Content Length Required``"
+msgstr "``Content Length Required``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:168
+msgid ""
+"``400`` Could not process this request because ``Content-Length`` was not "
+"specified. ``request#no_content_length``"
+msgstr ""
+"``400`` Could not process this request because ``Content-Length`` was not "
+"specified. (``Content-Length`` が指定されなかったためリクエストを処理できま"
+"せんでした。) ``request#no_content_length``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:175
+msgid "``Cycle Detected``"
+msgstr "``Cycle Detected``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:173
+msgid ""
+"``400`` Your request is prohibited because it would cause an HTTP proxy "
+"cycle. ``request#cycle_detected``"
+msgstr ""
+"``400`` Your request is prohibited because it would cause an HTTP proxy "
+"cycle. (リクエストが HTTP プロキシー循環を引き起こすのでリクエストは禁止され"
+"ました。) ``request#cycle_detected``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:180
+msgid "``Forbidden``"
+msgstr "``Forbidden``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:178
+msgid ""
+"``403`` ``<port number>`` is not an allowed port for SSL connections (you "
+"have made a request for a secure SSL connection to a forbidden port  "
+"number). ``access#ssl_forbidden``"
+msgstr ""
+"``403`` ``<port number>`` is not an allowed port for SSL connections (you "
+"have made a request for a secure SSL connection to a forbidden port  "
+"number). ``<ポート番号>`` が SSL 接続で許可されていないポートです (禁じられ"
+"たポートに SSL 接続のリクエストを行いました) 。``access#ssl_forbidden``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:190
+#: ../../admin/traffic-server-error-messages.en.rst:198
+msgid "``Host Header Required``"
+msgstr "``Host Header Required``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:183
+msgid ""
+"``400`` An attempt was made to transparently proxy your request, but this "
+"attempt failed because your browser did not send an HTTP ``Host`` header. "
+"Manually configure your browser to use ``http://<proxy name>:<proxy port>`` "
+"as the HTTP proxy. Alternatively, end users can upgrade to a browser that "
+"supports the HTTP ``Host`` header field. ``interception#no_host``"
+msgstr ""
+"``400`` An attempt was made to transparently proxy your request, but this "
+"attempt failed because your browser did not send an HTTP ``Host`` header. "
+"Manually configure your browser to use ``http://<proxy name>:<proxy port>`` "
+"as the HTTP proxy. Alternatively, end users can upgrade to a browser that "
+"supports the HTTP ``Host`` header field. (リクエストを透過的にプロキシーする"
+"よう試みましたが、ブラウザが HTTP ``Host`` ヘッダーを送信しなかったため失敗"
+"しました。ブラウザが ``http://<プロキシー名>:<プロキシーポート>`` を HTTP プ"
+"ロキシーとして使うように手動で設定していください。もしくは、エンドユーザー"
+"が ``Host`` ヘッダーをサポートするブラウザーにアップグレードすることもできま"
+"す。) ``interception#no_host``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:193
+msgid ""
+"``400`` Because your browser did not send a ``Host`` HTTP header field, the "
+"virtual host being requested could not be determined. To access the website "
+"correctly, you must upgrade to a browser that supports the HTTP ``Host`` "
+"header field. ``request#no_host``"
+msgstr ""
+"``400`` Because your browser did not send a ``Host`` HTTP header field, the "
+"virtual host being requested could not be determined. To access the website "
+"correctly, you must upgrade to a browser that supports the HTTP ``Host`` "
+"header field. (ブラウザーが ``Host`` HTTP ヘッダーを送信しなかったので、リク"
+"エストされているバーチャルホストを決定できませんでした。Webサイトに正しくア"
+"クセスするためには HTTP ``Host`` ヘッダーをサポートしているブラウザーにアッ"
+"プグレードしなくてはなりません。) ``request#no_host``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:204
+msgid "``HTTP Version Not Supported``"
+msgstr "``HTTP Version Not Supported``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:201
+msgid ""
+"``505`` The origin server ``<server name>`` is using an unsupported version "
+"of the HTTP protocol. ``response#bad_version``"
+msgstr ""
+"``505`` The origin server ``<server name>`` is using an unsupported version "
+"of the HTTP protocol. (オリジンサーバー ``<サーバー名>`` はサポートされてい"
+"ないバージョンの HTTP プロトコルを使用しています。) ``response#bad_version``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:209
+msgid "``Invalid HTTP Request``"
+msgstr "``Invalid HTTP Request``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:207
+msgid ""
+"``400`` Could not process this ``<client request>`` HTTP method request for "
+"``URL``. ``request#syntax_error``"
+msgstr ""
+"``400`` Could not process this ``<client request>`` HTTP method request for "
+"``URL``. (``URL`` への ``クライアントがリクエストしたメソッド`` HTTP メソッ"
+"ドを処理できませんでした。) ``request#syntax_error``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:214
+msgid "``Invalid HTTP Response``"
+msgstr "``Invalid HTTP Response``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:212
+#: ../../admin/traffic-server-error-messages.en.rst:217
+#: ../../admin/traffic-server-error-messages.en.rst:222
+#: ../../admin/traffic-server-error-messages.en.rst:232
+msgid ""
+"``502`` The host ``<server name>`` did not return the document ``URL`` "
+"correctly. ``response#bad_response``"
+msgstr ""
+"``502`` The host ``<server name>`` did not return the document ``URL`` "
+"correctly. (``<サーバー名>`` というホストは ``URL`` のドキュメントを正しく返"
+"しませんでした。) ``response#bad_response``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:219
+msgid "``Malformed Server Response``"
+msgstr "``Malformed Server Response``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:224
+msgid "``Malformed Server Response Status``"
+msgstr "``Malformed Server Response Status``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:229
+msgid "``Maximum Transaction Time exceeded``"
+msgstr "``Maximum Transaction Time exceeded``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:227
+msgid ""
+"``504`` Too much time has elapsed while transmitting document ``URL``. "
+"``timeout#activity``"
+msgstr ""
+"``504`` Too much time has elapsed while transmitting document ``URL``. "
+"(``URL`` のドキュメントの転送に時間が経過し過ぎました。) "
+"``timeout#activity``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:234
+msgid "``No Response Header From Server``"
+msgstr "``No Response Header From Server``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:240
+msgid "``Not Cached``"
+msgstr "``Not Cached``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:237
+msgid ""
+"``504`` This document was not available in the cache, and you (the client) "
+"only accept cached copies. ``cache#not_in_cache``"
+msgstr ""
+"``504`` This document was not available in the cache, and you (the client) "
+"only accept cached copies. (このドキュメントはキャッシュ内で有効ではなく、あ"
+"なた (クライアント) はキャッシュのコピーのみを受け入れます。) "
+"``cache#not_in_cache``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:246
+msgid "``Not Found on Accelerator``"
+msgstr "``Not Found on Accelerator``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:243
+msgid ""
+"``404`` The request for ``URL`` on host ``<server name>`` was not found. "
+"Check the location and try again. ``urlrouting#no_mapping``"
+msgstr ""
+"``404`` The request for ``URL`` on host ``<server name>`` was not found. "
+"Check the location and try again. (``<サーバ名>`` 上の ``URL`` へのリクエス"
+"トは見つかりませんでした。位置を確認してもう一度試してください。) "
+"``urlrouting#no_mapping``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:251
+msgid "``NULL``"
+msgstr "``NULL``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:249
+#: ../../admin/traffic-server-error-messages.en.rst:279
+msgid ""
+"``502`` The host ``<hostname>`` did not return the document ``URL`` "
+"correctly. ``response#bad_response``"
+msgstr ""
+"``502`` The host ``<hostname>`` did not return the document ``URL`` "
+"correctly. (``<ホスト名>`` は ``URL`` のドキュメントを正しく返しませんでし"
+"た。) ``response#bad_response``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:256
+msgid "``Proxy Authentication Required``"
+msgstr "``Proxy Authentication Required``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:254
+msgid ""
+"``407`` Please log in with username and password. "
+"``access#proxy_auth_required``"
+msgstr ""
+"``407`` Please log in with username and password. (ユーザー名とパスワードで"
+"ログインしてください。) ``access#proxy_auth_required``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:261
+msgid "``Server Hangup``"
+msgstr "``Server Hangup``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:259
+msgid ""
+"``502`` The server ``<hostname>`` closed the connection before the "
+"transaction was completed. ``connect#hangup``"
+msgstr ""
+"``502`` The server ``<hostname>`` closed the connection before the "
+"transaction was completed. (サーバー ``<ホスト名>`` はトランザクションが完了"
+"する前に接続を閉じました。) ``connect#hangup``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:266
+msgid "``Temporarily Moved``"
+msgstr "``Temporarily Moved``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:264
+msgid ""
+"``302`` The document you requested, ``URL``, has moved to a new location. "
+"The new location is ``<new URL>``. ``redirect#moved_temporarily``"
+msgstr ""
+"``302`` The document you requested, ``URL``, has moved to a new location. "
+"The new location is ``<new URL>``. (リクエストしたドキュメント ``URL`` は新"
+"しい場所に移動しました。新しい場所は ``<新しいURL>`` です。) "
+"``redirect#moved_temporarily``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:271
+msgid "``Transcoding Not Available``"
+msgstr "``Transcoding Not Available``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:269
+msgid ""
+"``406`` Unable to provide the document ``URL`` in the format requested by "
+"your browser. ``transcoding#unsupported``"
+msgstr ""
+"``406`` Unable to provide the document ``URL`` in the format requested by "
+"your browser. (``URL`` のドキュメントをブラウザーが要求した形式で提供するこ"
+"とができませんでした。) ``transcoding#unsupported``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:276
+msgid "``Tunnel Connection Failed``"
+msgstr "``Tunnel Connection Failed``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:274
+msgid ""
+"``502`` Could not connect to the server ``<hostname>``. "
+"``connect#failed_connect``"
+msgstr ""
+"``502`` Could not connect to the server ``<hostname>``. (サーバー ``<ホスト"
+"名>`` に接続できませんでした。) ``connect#failed_connect``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:281
+msgid "``Unknown Error``"
+msgstr "``Unknown Error``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:289
+msgid "``Unknown Host``"
+msgstr "``Unknown Host``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:284
+msgid ""
+"``500`` Unable to locate the server named ``<hostname>``; the server does "
+"not have a DNS entry. Perhaps there is a misspelling in the server name or "
+"the server no longer exists; double-check the name and try again. "
+"``connect#dns_failed``"
+msgstr ""
+"``500`` Unable to locate the server named ``<hostname>``; the server does "
+"not have a DNS entry. Perhaps there is a misspelling in the server name or "
+"the server no longer exists; double-check the name and try again. (``<ホスト"
+"名>`` と名付けられたサーバーを見つけられませんでした。サーバーは DNS エント"
+"リーを持っていません。おそらくサーバー名のスペルミスもしくはサーバーがもう存"
+"在していません。名前をダブルチェックしてもう一度試してください。) "
+"``connect#dns_failed``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:296
+msgid "``Unsupported URL Scheme``"
+msgstr "``Unsupported URL Scheme``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:292
+msgid ""
+"``400`` Cannot perform your request for the document ``URL`` because the "
+"protocol scheme is unknown. ``request#scheme_unsupported``"
+msgstr ""
+"``400`` Cannot perform your request for the document ``URL`` because the "
+"protocol scheme is unknown. (プロトコルスキームが不明なため、ドキュメント "
+"``URL`` へのリクエストを行えません。) ``request#scheme_unsupported``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:301
+msgid "Standard HTTP Response Messages"
+msgstr "標準的な HTTP レスポンスメッセージ"
+
+#: ../../admin/traffic-server-error-messages.en.rst:303
+msgid ""
+"The following standard HTTP response messages are provided for your "
+"information."
+msgstr "次の標準的な HTTP レスポンスメッセージが参考情報として提供されます。"
+
+#: ../../admin/traffic-server-error-messages.en.rst:307
+msgid "``200``"
+msgstr "``200``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:307
+msgid "OK"
+msgstr "OK"
+
+#: ../../admin/traffic-server-error-messages.en.rst:310
+msgid "``202``"
+msgstr "``202``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:310
+msgid "Accepted"
+msgstr "Accepted"
+
+#: ../../admin/traffic-server-error-messages.en.rst:313
+msgid "``204``"
+msgstr "``204``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:313
+msgid "No Content"
+msgstr "No Content"
+
+#: ../../admin/traffic-server-error-messages.en.rst:316
+msgid "``206``"
+msgstr "``206``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:316
+msgid "Partial Content"
+msgstr "Partial Content"
+
+#: ../../admin/traffic-server-error-messages.en.rst:319
+msgid "``300``"
+msgstr "``300``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:319
+msgid "Multiple Choices"
+msgstr "Multiple Choices"
+
+#: ../../admin/traffic-server-error-messages.en.rst:322
+msgid "``301``"
+msgstr "``301``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:322
+msgid "Moved Permanently"
+msgstr "Moved Permanently"
+
+#: ../../admin/traffic-server-error-messages.en.rst:325
+msgid "``302``"
+msgstr "``302``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:325
+msgid "Found"
+msgstr "Found"
+
+#: ../../admin/traffic-server-error-messages.en.rst:328
+msgid "``303``"
+msgstr "``303``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:328
+msgid "See Other"
+msgstr "See Other"
+
+#: ../../admin/traffic-server-error-messages.en.rst:331
+msgid "``304``"
+msgstr "``304``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:331
+msgid "Not Modified"
+msgstr "Not Modified"
+
+#: ../../admin/traffic-server-error-messages.en.rst:334
+msgid "``400``"
+msgstr "``400``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:334
+msgid "Bad Request"
+msgstr "Bad Request"
+
+#: ../../admin/traffic-server-error-messages.en.rst:337
+msgid "``401``"
+msgstr "``401``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:337
+msgid "Unauthorized; retry"
+msgstr "Unauthorized; retry"
+
+#: ../../admin/traffic-server-error-messages.en.rst:340
+msgid "``403``"
+msgstr "``403``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:340
+msgid "Forbidden"
+msgstr "Forbidden"
+
+#: ../../admin/traffic-server-error-messages.en.rst:343
+msgid "``404``"
+msgstr "``404``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:343
+msgid "Not Found"
+msgstr "Not Found"
+
+#: ../../admin/traffic-server-error-messages.en.rst:346
+msgid "``405``"
+msgstr "``405``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:346
+msgid "Method Not Allowed"
+msgstr "Method Not Allowed"
+
+#: ../../admin/traffic-server-error-messages.en.rst:349
+msgid "``406``"
+msgstr "``406``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:349
+msgid "Not acceptable"
+msgstr "Not acceptable"
+
+#: ../../admin/traffic-server-error-messages.en.rst:352
+msgid "``408``"
+msgstr "``408``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:352
+msgid "Request Timeout"
+msgstr "Request Timeout"
+
+#: ../../admin/traffic-server-error-messages.en.rst:355
+msgid "``500``"
+msgstr "``500``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:355
+msgid "Internal server error"
+msgstr "Internal server error"
+
+#: ../../admin/traffic-server-error-messages.en.rst:358
+msgid "``501``"
+msgstr "``501``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:358
+msgid "Not Implemented"
+msgstr "Not Implemented"
+
+#: ../../admin/traffic-server-error-messages.en.rst:361
+msgid "``502``"
+msgstr "``502``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:361
+msgid "Bad Gateway"
+msgstr "Bad Gateway"
+
+#: ../../admin/traffic-server-error-messages.en.rst:364
+msgid "``504``"
+msgstr "``504``"
+
+#: ../../admin/traffic-server-error-messages.en.rst:364
+msgid "Gateway Timeout"
+msgstr "Gateway Timeout"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy.en.po b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy.en.po
new file mode 100644
index 00000000..159ebc98
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy.en.po
@@ -0,0 +1,218 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.#
+
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/transparent-proxy.en.rst:4
+msgid "Transparent Proxying"
+msgstr "透過プロキシー"
+
+#: ../../admin/transparent-proxy.en.rst:32
+msgid ""
+"Transparent Proxying is the ability of a proxy (such as ATS) to intercept "
+"connections between clients and servers without being visible."
+msgstr ""
+"透過プロキシーは (ATS などの ) プロキシーがクライアントとサーバーの間の接続"
+"を見えないように横取りする能力です。"
+
+#: ../../admin/transparent-proxy.en.rst:35
+msgid ""
+"The general network structure that will be used in this documentation looks "
+"like this --"
+msgstr ""
+"このドキュメント内で使用される全体的なネットワーク構成はこのようになっていま"
+"す。"
+
+#: ../../admin/transparent-proxy.en.rst:42
+msgid "ATS basic traffic flow of Transparent Proxy"
+msgstr "透過プロキシーの ATS での基本的なトラッフィクの流れ"
+
+#: ../../admin/transparent-proxy.en.rst:44
+msgid ""
+"There must be a gateway device through which passes all network traffic "
+"from the client to the Internet (or external cloud). The gateway is "
+"responsible for effectively splicing ATS in to selected streams of that "
+"traffic. Each traffic stream is split in to two, with ATS terminating both "
+"sides. That is, stream green-1, red-2, is split in to the green connection "
+"and the red connection. Note that ATS may or may not be on the gateway "
+"system, the redirected traffic can flow over other network infrastructure."
+msgstr ""
+"クライアントからインターネット ( もしくは外部のクラウド ) へのすべてのネット"
+"ワークトラフィックを通すゲートウェイデバイスがなくてはなりません。このゲート"
+"ウェイは効率的に ATS をそのトラフィックの選択されたストリームに継ぐことに責"
+"任をもちます。各トラフィックストリームは二つに分割され、ATS は両側を終端しま"
+"す。これは、ストリーム緑-1、赤-2 は緑の接続と赤の接続に分割されるということ"
+"です。ATS はゲートウェイ上にあることもそうでないこともあることに注意してくだ"
+"さい。向き先の変わったトラフィックは他のネットワーク基盤に流れ出ることがあり"
+"ます。"
+
+#: ../../admin/transparent-proxy.en.rst:53
+msgid ""
+"Because ATS uses two connections transparency can be set independently on "
+"the client and origin server (Internet / external cloud) side. We will "
+"define what is generally called \"transparent proxy\" as two aspects, "
+"*inbound transparency* and *outbound transparency*."
+msgstr ""
+"なぜなら ATS はクライアント側とオリジンサーバー ( インターネット / 外部クラ"
+"ウド ) の側とで独立して設定される可能性のある二つの接続透過性を使用するから"
+"です。二つの面、\\ *内向き透過性*\\ と\\ *外向き透過性*\\ で何が一般的に\"透"
+"過プロキシー\"と呼ばれるのかを定義していきます。"
+
+#: ../../admin/transparent-proxy.en.rst:58
+msgid ""
+"Inbound transparency is a proxy that is transparent to connections that are "
+"inbound to the proxy, i.e. a connection initiated by a client which "
+"connects to the proxy (green-1). Similarly, outbound transparency is a "
+"proxy that is transparent to connections that are outbound from the proxy, "
+"i.e. a connection initiated by the proxy to an origin server (red-2)."
+msgstr ""
+"内向き透過性はプロキシーに入ってくる接続に対して透過なプロキシーです。例えば"
+"プロキシーに接続するクライアントによって開始される接続 ( 緑-1 ) です。同様"
+"に、外向き透過性はプロキシーから出ていく接続に対して透過なプロキシーです。例"
+"えば、オリジンサーバーに接続するプロキシーによって開始される接続 ( 赤-2 ) で"
+"す。"
+
+#: ../../admin/transparent-proxy.en.rst:65
+msgid ""
+"In most treatments these two types of transparency are treated as unitarily "
+"but that is not required. This implementation supports transparency "
+"independently on the two (client, origin server) sides (`use cases <half-"
+"transparency-use-cases>`_."
+msgstr ""
+"これら二つのタイプの透過性のほとんどの扱いは一元的なものとして扱われますが、"
+"それは必須ではありません。この実装は透過性を二つのサイド ( クライアント、オ"
+"リジンサーバー ) で独立してサポートします。( `ユースケース <half-"
+"transparency-use-cases>`_)"
+
+#: ../../admin/transparent-proxy.en.rst:70
+msgid ""
+"It is critical to note that any transparency requires specialized routing "
+"and cannot be done solely by configuring ATS. ATS transparency also "
+"requires support from the Linux kernel and therefore currently only works "
+"on sufficiently recent Linux kernels that support the following features --"
+msgstr ""
+"どの透過性も特別なルーティングを必要とし、単に ATS を設定するだけでは完了で"
+"きないことに十分に注意してください。ATS の透過性は Linux カーネルのサポート"
+"も必要とするので、現在は次の機能をサポートした最近の Linux カーネルでしか十"
+"分に動作しません。"
+
+#: ../../admin/transparent-proxy.en.rst:76
+msgid "TPROXY"
+msgstr "TPROXY"
+
+#: ../../admin/transparent-proxy.en.rst:77
+msgid "POSIX capabilities"
+msgstr "POSIX ケーパビリティ"
+
+#: ../../admin/transparent-proxy.en.rst:79
+msgid ""
+"In addition the specialized routing will require using ``iptables`` and in "
+"some cases ``ebtables``."
+msgstr ""
+"また特殊なルーティングは ``iptables`` を必要とし、いくつかのケースでは "
+"``ebtables`` を必要とします。"
+
+#: ../../admin/transparent-proxy.en.rst:82
+msgid ""
+"Standard build procedures should work for transparency support but if not "
+"consult these :ref:`more detailed instructions <building-ats-for-"
+"transparency>`"
+msgstr ""
+"標準のビルド手順は透過プロキシーの対応でも使えるはずですが、うまくいかない場"
+"合は\\ :ref:`より詳細な手順 <building-ats-for-transparency>`\\ を参考にして"
+"ください。"
+
+#: ../../admin/transparent-proxy.en.rst:85
+msgid ""
+"Transparency is configured per server port not globally. This is done via "
+"the configuration values :ts:cv:`proxy.config.http.server_ports`. In "
+"addition, :ts:cv:`proxy.config.reverse_proxy.enabled` must be enabled if "
+"the client side is transparent. That should be fixed in a future patch."
+msgstr ""
+"透過性はグローバルにではなくサーバーのポート毎に設定されます。これは :ts:cv:"
+"`proxy.config.http.server_ports` の設定値によって行われます。また、クライア"
+"ント側が透過の場合は :ts:cv:`proxy.config.reverse_proxy.enabled` が有効化さ"
+"れていなければなりません。これは将来のパッチで修正されます。"
+
+#: ../../admin/transparent-proxy.en.rst:90
+msgid ""
+"In the first case use the attribute character (replacing the default 'X')"
+msgstr ""
+"最初のケースは ( デフォルトの 'X' を置き換えている) 属性文字を使用します"
+
+#: ../../admin/transparent-proxy.en.rst:93
+msgid "**Attribute** **Transparency Style** **Reverse Proxy**"
+msgstr "**属性** **透過性スタイル** **リバースプロキシー**"
+
+#: ../../admin/transparent-proxy.en.rst:96
+msgid "``=``"
+msgstr "``=``"
+
+#: ../../admin/transparent-proxy.en.rst:96
+msgid "Full transparency: either"
+msgstr "完全透過性: どちらか"
+
+#: ../../admin/transparent-proxy.en.rst:99
+msgid "``>``"
+msgstr "``>``"
+
+#: ../../admin/transparent-proxy.en.rst:99
+msgid "Inbound (client) transparency: enabled"
+msgstr "内向き ( クライアント ) 透過性: 有効"
+
+#: ../../admin/transparent-proxy.en.rst:102
+msgid "``<``"
+msgstr "``<``"
+
+#: ../../admin/transparent-proxy.en.rst:102
+msgid "Outbound (origin server) transparency: either"
+msgstr "外向き ( オリジンサーバー ) 透過性: どちらか"
+
+#: ../../admin/transparent-proxy.en.rst:104
+msgid ""
+"In the outbound transparent case clients must connect directly to ATS "
+"either through an explicit proxy mechanism or by advertising the IP address "
+"of the ATS server via DNS as the origin server address."
+msgstr ""
+"外向き透過性のケースではクライアントは明示的プロキシーの仕組みを通してか "
+"ATS サーバーの IP アドレスをオリジンサーバーのアドレスとして DNS で広告する"
+"かのどちらかで ATS に直接接続しなくてはなりません。"
+
+#: ../../admin/transparent-proxy.en.rst:108
+msgid "Some tested scenarios --"
+msgstr "いくつかの実験済みのシナリオ"
+
+#: ../../admin/transparent-proxy.en.rst:110
+msgid ":doc:`transparent-proxy/bridge.en`"
+msgstr ":doc:`transparent-proxy/bridge.en`"
+
+#: ../../admin/transparent-proxy.en.rst:111
+msgid ":doc:`transparent-proxy/router-inline.en`"
+msgstr ":doc:`transparent-proxy/router-inline.en`"
+
+#: ../../admin/transparent-proxy.en.rst:112
+msgid ":doc:`transparent-proxy/wccp-configuration.en`"
+msgstr ":doc:`transparent-proxy/wccp-configuration.en`"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/bridge.en.po b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/bridge.en.po
new file mode 100644
index 00000000..06faa2e6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/bridge.en.po
@@ -0,0 +1,298 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:2
+msgid "Inline on a Linux Bridge"
+msgstr "Linux ブリッジ上でのインライン"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:23
+msgid ""
+"A Linux can be configured to operate in `bridge mode <http://www."
+"linuxfoundation.org/collaborate/workgroups/networking/bridge>`_. Two or "
+"more physical interfaces are assigned to the bridge. A single IP address is "
+"shared across the interfaces. By default any packet that arrives on one "
+"interface is immediately routed out another bridge interface."
+msgstr ""
+"Linux は\\ `ブリッジモード <http://www.linuxfoundation.org/collaborate/"
+"workgroups/networking/bridge>`_\\ で動作するように設定できます。二つ以上の物"
+"理インターフェースがブリッジに割り当てられます。一つの IP アドレスはそれらの"
+"インターフェース間で共有されます。デフォルトでは一つのインターフェースに到着"
+"したあらゆるパケットは直ちにもう一つのブリッジインターフェースに送り出されま"
+"す。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:29
+msgid "Linux packages required:"
+msgstr "必要な Linux のパッケージ"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:31
+msgid "bridge-utils"
+msgstr "bridge-utils"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:32
+msgid "ebtables"
+msgstr "ebtables"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:34
+msgid ""
+"In our example of setting up bridge mode we will use a local address of "
+"192.168.1.11/24 and interfaces ``eth0`` and ``eth1`` as the bridge "
+"interfaces (more detailed documentation is available `here <http://www.tldp."
+"org/HOWTO/BRIDGE-STP-HOWTO/preparing-the-bridge.html>`_). You may omit the "
+"'#' character and everything after it. ::"
+msgstr ""
+"ブリッジモードの設定例では 192.168.1.11/24 のローカルアドレスとインター"
+"フェース ``eth0`` と ``eth1`` をブリッジインターフェースとして使用します "
+"( より詳細なドキュメントは `ここ <http://www.tldp.org/HOWTO/BRIDGE-STP-"
+"HOWTO/preparing-the-bridge.html>`_ にあります) 。'#' とその後ろのものはすべ"
+"て省略できます。 ::"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:49
+msgid ""
+"If you have not already done so, remember to add a default route, such as "
+"this one for a gateway of 192.168.1.1. ::"
+msgstr ""
+"もしまだ済ませていない場合は、これが 192.168.1.1 のゲートウェイのためのもの"
+"であると、デフォルト経路を追加することを覚えておいてください。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:54
+msgid ""
+"At this point it is a good idea to test connectivity to verify the basic "
+"bridge is functional."
+msgstr ""
+"この時点で基本的なブリッジが動作することを確認するために接続性をテストしてお"
+"くと良いです。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:57
+msgid ""
+"Once the bridge is verified to work, this is the basic traffic pattern of "
+"interest."
+msgstr ""
+"ブリッジが動作することを確認できたなら、これがお望みの基本的なトラフィックパ"
+"ターンです。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:64
+msgid "Picture of traffic flow through a bridge with ATS"
+msgstr "ATS を使ったブリッジを通るトラフィックの流れ"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:66
+msgid ""
+"The green arrows are packets originating from the client and the red arrows "
+"are packets originating from the origin server. All traffic not directed to "
+"the local address will pass through the bridge. We need to break into some "
+"of the traffic and subject it to routing so that it can be routed to ATS. "
+"This requires ``ebtables``. The flows we want to intercept are green 1 "
+"(from client to bridge) and red 1 (origin server to bridge)."
+msgstr ""
+"緑の矢印はクライアントからのパケットで、赤の矢印はオリジンサーバーからのパ"
+"ケットです。ローカルアドレス宛てではないすべてのトラフィックはブリッジを通り"
+"ます。トラフィックに割って入り ATS に向かうようにする必要があります。これに"
+"は ``ebtables`` が必要となります。横取りしたい流れは緑 1 ( クライアントから"
+"ブリッジ ) と赤 1 ( オリジンサーバーからブリッジ ) です。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:94
+msgid ""
+"Traffic Server operates at layer 3 so we need to use ``iptables`` to handle "
+"IP packets appropriately.::"
+msgstr ""
+"Traffic Server はレイヤー 3 で動作するので IP パケットを適切に扱うために "
+"``iptables`` を使用する必要があります。 ::"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:102
+msgid ""
+"At this point the directionality of the interfaces matters. For the example "
+"``eth1`` is the inbound (client side) interface, while ``eth0`` is the "
+"outbound (origin server side) interface. We mark both flows of packets so "
+"that we can use policy routing on them. For inbound packets we need to use "
+"``TPROXY`` to force acceptance of packets to foreign IP addresses. For "
+"returning outbound packets there will be a socket open bound to the foreign "
+"address, we need only force it to be delivered locally. The value for ``--"
+"on-ip`` is 0 because the target port is listening and not bound to a "
+"specific address. The value for ``--on-port`` must match the Traffic Server "
+"server port. Otherwise its value is arbitrary. ``--dport`` and ``--sport`` "
+"specify the port from the point of view of the clients and origin servers."
+msgstr ""
+"ここでインターフェースの方向性が問題となります。例では ``eth1`` は内向き "
+"( クライアント側 ) インターフェース、``eth0`` は外向き ( オリジンサーバー"
+"側 ) インターフェースです。両方のパケットの流れでポリシーに沿ったルーティン"
+"グができるように印を付けます。内向きのパケットでは外部の IP アドレスへのパ"
+"ケットの受け付けを強制するために ``TPROXY`` を使う必要があります。外向きのパ"
+"ケットを返すためには外部のアドレスに結びつけられているソケットが開かれてお"
+"り、それを内部的に配達されることのみを強制する必要があります。ターゲットポー"
+"トは listen 中で特定のアドレスには bind されていないので ``--on-ip`` の値は "
+"0 です。``--on-port`` の値は Traffic Server のサーバーポートと一致しなければ"
+"なりません。そうでなければその値は任意です。``--dport`` と ``--sport`` はク"
+"ライアントとオリジンサーバーの視点でのポートを指定します。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:115
+msgid ""
+"Once the flows are marked we can force them to be delivered locally via the "
+"loopback interface via a policy routing table.::"
+msgstr ""
+"流れに印が付けられたのでそれらがポリシーに沿ったルーティングテーブルにより"
+"ループバックインターフェースで内部的に配達されることを強制できます。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:121
+msgid ""
+"The marking used is arbitrary but it must be consistent between "
+"``iptables`` and the routing rule. The table number must be in the range "
+"1..253."
+msgstr ""
+"使用済みと印を付けることは任意ですが、``iptables`` とルーティングルールとの"
+"間で矛盾がないようにしなければなりません。テーブル番号は 1 から 253 の間でな"
+"ければなりません。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:125
+msgid ""
+"To configure Traffic Server set the following values in :file:`records."
+"config`"
+msgstr ""
+"Traffic Server を設定するために次の :file:`records.config` の値を設定しま"
+"す。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:128
+msgid ""
+":ts:cv:`proxy.config.http.server_ports` *value from* ``--on-port`` (see "
+"below)"
+msgstr ""
+":ts:cv:`proxy.config.http.server_ports` *の値は* ``--on-port`` (以下を参照)"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:130
+msgid ":ts:cv:`proxy.config.reverse_proxy.enabled` ``1``"
+msgstr ":ts:cv:`proxy.config.reverse_proxy.enabled` ``1``"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:132
+msgid ":ts:cv:`proxy.config.url_remap.remap_required` ``0``"
+msgstr ":ts:cv:`proxy.config.url_remap.remap_required` ``0``"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:134
+msgid ""
+"You may also need to set :ts:cv:`proxy.config.cluster.ethernet_interface` "
+"to \"br0\" (the name of the bridge interface from the `<Bridge Commands>`_)."
+msgstr ""
+":ts:cv:`proxy.config.cluster.ethernet_interface` を \"br0\" に設定する必要も"
+"あります。( ブリッジインターフェースの名前は `<Bridge Commands>`_ からとって"
+"ください。)"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:138
+msgid "Additional troubleshooting"
+msgstr "追加のトラブルシューティング"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:143
+msgid ""
+"It is frequently the case that the default tables prevent incoming HTTP. "
+"You can clear all filters with the commands::"
+msgstr ""
+"デフォルトテーブルが入ってくる HTTP を妨害するケースがよくあります。次のコマ"
+"ンドですべてのフィルターを消去することができます。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:149
+msgid ""
+"That is a bit drastic and should only be used for testing / debugging. A "
+"live system will likely need some filters in place but that is beyond the "
+"scope of this document. If this fixes the problem, then your filter set is "
+"too restrictive."
+msgstr ""
+"これは劇的でテスト / デバッグのためだけに使用すべきです。稼働中のシステムは"
+"ここにいくつかのフィルターを必要としますが、それはこのドキュメントの範囲外で"
+"す。もしこれが問題を解決するのであれば、フィルターの制限が厳しすぎます。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:154
+msgid ""
+"Note that this problem will prevent the basic bridge (without ATS) from "
+"allowing HTTP traffic through."
+msgstr ""
+"この問題は HTTP のトラフィックを通過させる ( ATS を使わない ) 基本的なブリッ"
+"ジ動作を妨げていることに注意してください。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:173
+msgid "Footnotes"
+msgstr "脚注"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:175
+msgid ""
+"The ``--redirect-target`` can be omitted, but then the ``iptables`` rules "
+"would need to use ``--physdev`` instead of just ``-i``. The actual packet "
+"processing is identical."
+msgstr ""
+"``--redirect-target`` は省略可能ですが、``iptables`` のルールで単に ``-i`` "
+"とする代わりに ``--physdev`` を使う必要があるでしょう。実際のパケット処理は"
+"まったく同じです。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:74
+msgid ""
+"In this example we will intercept port 80 (HTTP) traffic. We will use the "
+"``BROUTING`` chain because it is traversed only for packets that originated "
+"externally and arrived on a (forwarding enabled) interface. Although it "
+"looks like this will intercept all port 80 traffic it will only affect the "
+"two flows described above. ``-j redirect`` marks the packet as being "
+"diverted to the bridge and not forwarded, and the ``DROP`` target puts the "
+"packets in the normal ``iptables`` routing so that we can use standard "
+"device tests on them [1]_. Although this example handles only port 80, "
+"other ports are the same except for the port value. Note also the port here "
+"is the port from the point of view of the clients and origin servers, not "
+"the Traffic Server server port. ::"
+msgstr ""
+"この例ではポート 80 (HTTP) のトラフィックを横取りします。外部から発信され "
+"( 転送が有効化された ) インターフェースに到着したパケットのみを扱いたいので "
+"``BROUTING`` チェーンを使用します。ポート 80 のすべてのトラフィックを横取り"
+"するように見えますが、上記の流れのみに影響を与えます。``-j redirect`` はパ"
+"ケットがブリッジに流れ、転送はされないように印を付け、``DROP`` ターゲットは"
+"パケットを標準的なデバイスのテストができるように通常の ``iptables`` のルー"
+"ティングに置きます。 [1]_ この例はポート 80 のみを扱いますが、他のポートも"
+"ポート番号が違うことを除いて同じです。ここでのポートはクライアントとオリジン"
+"サーバーの視点でのものであり、Traffic Server のサーバーポートではないことに"
+"注意してください。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:140
+msgid ""
+"Check to make sure that ``iptables`` is not filtering (blocking) incoming "
+"HTTP connections."
+msgstr ""
+"``iptables`` が入ってくる HTTP 接続をフィルタ ( ブロック ) していないことを"
+"確認してください。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:157
+msgid "Verify that IP packet forwarding is enabled."
+msgstr "IP パケット転送が有効化されていることを確認してください。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:159
+msgid "You can check this with::"
+msgstr "これは次のように確認できます。 ::"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:163
+msgid ""
+"The output should be a non-zero value (usually '1'). If it is zero, you can "
+"set it with::"
+msgstr ""
+"出力は非ゼロ値 ( たいてい '1' ) のはずです。もしゼロの場合は次のように設定可"
+"能です。"
+
+#: ../../admin/transparent-proxy/bridge.en.rst:168
+msgid ""
+"This can setting can be persisted by putting it in ``/etc/sysctl.conf``: ::"
+msgstr "この設定は ``/etc/sysctl.conf`` に書くことで恒久的にできます。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/build.en.po b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/build.en.po
new file mode 100644
index 00000000..a3500417
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/build.en.po
@@ -0,0 +1,111 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/transparent-proxy/build.en.rst:4
+msgid "Building ATS for transparency"
+msgstr "透過用 ATS のビルド"
+
+#: ../../admin/transparent-proxy/build.en.rst:24
+msgid ""
+"In most cases, if your environment supports transparency then ``configure`` "
+"will automatically enable it. For other environments you may need to "
+"twiddle the ``configure`` options."
+msgstr ""
+"ほとんどのケースでは、環境が透過性をサポートしていれば ``configure`` が自動"
+"的にそれを有効化します。そうでない環境では ``configure`` のオプションをいじ"
+"る必要があるでしょう。"
+
+#: ../../admin/transparent-proxy/build.en.rst:34
+msgid "``--enable-posix-cap``"
+msgstr "``--enable-posix-cap``"
+
+#: ../../admin/transparent-proxy/build.en.rst:29
+msgid ""
+"This enables POSIX capabilities, which are required for transparency. These "
+"are compiled in by default. To check your system, look for the header file "
+"``sys/capability.h`` and the system library ``libcap``. These are in the "
+"packages ``libcap`` and ``libcap-devel`` or ``libcap-dev`` (depending on "
+"the Distribution) contra-respectively."
+msgstr ""
+"これは透過性で必要とされる POSIX ケーパビリティを有効化します。これらはデ"
+"フォルトで自動的にコンパイルされます。システムを確認するために、ヘッダーファ"
+"イル ``sys/capability.h`` とシステムライブラリ ``libcap`` を探します。これら"
+"はそれぞれ ``libcap`` と ``libcap-devel`` または ``libcap-dev`` ( ディストリ"
+"ビューションに依ります ) パッケージ内にあります。"
+
+#: ../../admin/transparent-proxy/build.en.rst:52
+msgid "``--enable-tproxy[=value]``"
+msgstr "``--enable-tproxy[=value]``"
+
+#: ../../admin/transparent-proxy/build.en.rst:37
+msgid ""
+"Enable TPROXY support, which is the Linux kernel feature used for "
+"transparency. This should be present in the base installation, there is no "
+"package associated with it. \\* ``auto`` Do automatic checks for the the "
+"TPROXY header file (``linux/in.h``) and enable TPROXY support if the "
+"``IP_TRANSPARENT`` definition is present. This is the default if this "
+"option is not specified or ``value`` is omitted. \\* ``no`` Do not check "
+"for TPROXY support, disable support for it. \\* ``force`` Do not check for "
+"TPROXY support, enable it using the $ats@ built in value for "
+"``IP_TRANSPARENT``. This is useful for systems that have it in the kernel "
+"for but some reason do not have the appropriate system header file. \\* "
+"*number* Do not check for TPROXY support, use *number* as the "
+"``IP_TRANSPARENT`` value. There are, at present, no known standard "
+"distributions of Linux that support TPROXY but use a value different from "
+"the built in ATS default. However, a custom built kernel may do so and in "
+"that case the specific value can be specified."
+msgstr ""
+"透過で使用される Linux カーネルの機能である TPROXY サポートを有効化します。"
+"これは基本的なインストールに含まれているはずであり、これに紐付くパッケージは"
+"ありません。\\* ``auto`` TPROXY ヘッダーファイル (``linux/in.h``)  を自動的"
+"に確認し、``IP_TRANSPARENT`` の定義が存在する場合は TPROXY サポートを有効化"
+"します。これはこのオプションが指定されていないか ``value`` が省略された場合"
+"のデフォルトです。\\* ``no`` TPROXY サポートを確認せず、そのサポートを無効化"
+"します。\\* ``force`` TPROXY サポートを確認せず、``IP_TRANSPARENT`` のため"
+"の $ats@ 組み込みの値を使用して有効化します。これはカーネルにはあるものの何"
+"らかの理由で適切なシステムヘッダーファイルを持っていないシステムの場合に便利"
+"です。\\* *number* TPROXY サポートを確認せず、 *number* を "
+"``IP_TRANSPARENT`` の値として使用します。いまのところ、TPROXY をサポートして"
+"いて ATS 組み込みのデフォルトと異なる値を使用することが知られている標準的な"
+"ディストリビューションはありません。しかし、カスタムビルドのカーネルはそうし"
+"ているかも知れず、その場合には特定の値が指定できます。"
+
+#: ../../admin/transparent-proxy/build.en.rst:54
+msgid ""
+"In the default case, ATS configuration will automatically check for TPROXY "
+"support via the presence of the ``linux/in.h`` header file and compile in "
+"TPROXY support if it is available. If that fails, you may be able to "
+"recover by using one of the options above. Note that transparency may be "
+"built in by default but it is not active unless explicitly enabled in the "
+"ATS configuration files."
+msgstr ""
+"デフォルトでは、ATS の設定はヘッダーファイル ``linux/in.h`` の存在により "
+"TPROXY の対応を自動的に確認し、それが有効なら TPROXY 対応でコンパイルしま"
+"す。これが失敗した場合は、たぶん上記のオプションのどれか一つを使うことで回復"
+"可能です。透過性はデフォルトでビルドされることがありますが、ATS の設定ファイ"
+"ルで明示的に有効化しない限り動作しないことに注意してください。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/router-inline.en.po b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/router-inline.en.po
new file mode 100644
index 00000000..ef9a6e72
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/router-inline.en.po
@@ -0,0 +1,162 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:2
+msgid "Inline on a Linux router"
+msgstr "Linux ルーター上でのインライン"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:21
+msgid ""
+"The routed set up presumes the set of clients are on distinct networks "
+"behind a single physical interface. For the purposes of this example will "
+"we presume"
+msgstr ""
+"経路セットアップはクライアントは一つの物理インターフェースの後ろにある別々の"
+"ネットワーク上に存在すると仮定します。この例の目的を次のように仮定します。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:25
+msgid "The clients are on network 172.28.56.0/24"
+msgstr "クライアントは 172.28.56.0/24 のネットワーク上にあります"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:26
+msgid "The router connects the networks 172.28.56.0/24 and 192.168.1.0/24"
+msgstr ""
+"ルーターは 172.28.56.0/24 と 192.168.1.0/24 のネットワークを接続しています。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:27
+msgid "Interface ``eth0`` is on the network 192.168.1.0/24"
+msgstr ""
+"インターフェース ``eth0`` は 192.168.1.0/24 のネットワーク上にあります。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:28
+msgid "Interface ``eth1`` is on the network 172.28.56.0/24"
+msgstr ""
+"インターフェース ``eth1`` は 172.28.56.0/24 のネットワーク上にあります。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:29
+msgid ""
+"The router is already configured to route traffic correctly for the clients."
+msgstr ""
+"このルーターはクライアントのためにトラフィックを正しく転送するようにすでに設"
+"定済みです。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:32
+msgid ""
+"In this example we will intercept port 80 (HTTP) traffic that traverses the "
+"router. The first step is to use ``iptables`` to handle IP packets "
+"appropriately."
+msgstr ""
+"この例ではルーターを通るポート 80 (HTTP) のトラフィックを横取りします。最初"
+"のステップは IP パケットを適切に扱うために  ``iptables`` を使うことです。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:47
+msgid ""
+"We mark packets so that we can use policy routing on them. For inbound "
+"packets we use ``TPROXY`` to make it possible to accept packets sent to "
+"foreign IP addresses. For returning outbound packets there will be a socket "
+"open bound to the foreign address, we need only force it to be delivered "
+"locally. The value for ``--on-ip`` is 0 because the target port is "
+"listening and not bound to a specific address. The value for ``--on-port`` "
+"must match the Traffic Server server port. Otherwise its value is "
+"arbitrary. ``--dport`` and ``--sport`` specify the port from the point of "
+"view of the clients and origin servers. The middle two lines exempt local "
+"web traffic from being marked for Traffic Server -- these rules can be "
+"tightened or loosened as needed. They server by matching traffic and "
+"exiting the ``iptables`` processing via ``ACCEPT`` before the last line is "
+"checked."
+msgstr ""
+"これらについてポリシールーティングができるようにパケットに印を付けます。内向"
+"きのパケットでは外部の IP アドレスに送信されるパケットを受け付けるために "
+"``TPROXY`` を使用します。外向きのパケットを返すために外部アドレスに bind さ"
+"れたソケットがあり、内部的に配送されることのみを強制します。``--on-ip`` の値"
+"は目的のポートは特定のアドレスに bind されておらず listen 状態なので 0 で"
+"す。``--on-port`` の値は Traffic Server のサーバーポートと一致しなければ成り"
+"ませんが、その他の点では任意の値を使用できます。 ``--dport`` と ``--sport`` "
+"はクライアントとオリジンサーバーの視点でのポートを指定します。真ん中の二行は"
+"印の付けられた Traffic Server へのローカルなウェブトラフィックを通します。こ"
+"れらのルールは必要に応じて厳しくすることも緩めることも可能です。トラフィック"
+"のマッチングと最後の行が確認される前の ``iptables`` での ``ACCEPT`` による処"
+"理により提供されます。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:61
+msgid ""
+"Once the flows are marked we can force them to be delivered locally via the "
+"loopback interface via a policy routing table."
+msgstr ""
+"一度フローに印が付けられると、それらがポリシールーティングテーブルによりルー"
+"プバックインターフェースで内部的に配送されることを強制できます。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:69
+msgid ""
+"The marking used is arbitrary but it must be consistent between "
+"``iptables`` and the routing rule. The table number must be in the range "
+"1..253."
+msgstr ""
+"使用済みという印付けは独断的に行われますが、``iptables`` とルーティングルー"
+"ルとの間で一貫していなければなりません。テーブル番号は 1 から 253 の間でなけ"
+"ればなりません。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:73
+msgid ""
+"To configure Traffic Server set the following values in :file:`records."
+"config`"
+msgstr ""
+"Traffic Server を設定するために次の値を :file:`records.config` に設定してく"
+"ださい。"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:78
+msgid "``proxy.config.http.server_port``"
+msgstr "``proxy.config.http.server_port``"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:81
+msgid "``STRING`` Default: ``=``"
+msgstr "``STRING`` デフォルト: ``=``"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:86
+msgid "``proxy.config.reverse_proxy.enabled``"
+msgstr "``proxy.config.reverse_proxy.enabled``"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:85
+msgid "``INT`` Default: ``1``"
+msgstr "``INT`` デフォルト: ``1``"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:90
+msgid "``proxy.config.url_remap.remap_required``"
+msgstr "``proxy.config.url_remap.remap_required``"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:89
+msgid "``INT`` Default: ``0``"
+msgstr "``INT`` デフォルト: ``0``"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:77
+msgid "``STRING`` Default: *value from* ``--on-port``"
+msgstr "``STRING`` デフォルト: ``--on-port`` *の値*"
+
+#: ../../admin/transparent-proxy/router-inline.en.rst:82
+msgid "``proxy.config.http.server_port_attr``"
+msgstr "``proxy.config.http.server_port_attr``"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/wccp-configuration.en.po b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/wccp-configuration.en.po
new file mode 100644
index 00000000..fd242a3b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/transparent-proxy/wccp-configuration.en.po
@@ -0,0 +1,300 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:2
+msgid "WCCP Configuration"
+msgstr "WCCP 設定"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:25
+msgid ""
+"`WCCP <http://cio.cisco.com/en/US/docs/ios/12_0t/12_0t3/feature/guide/wccp."
+"html>`_ is de-facto semi-standard used by routers to redirect network "
+"traffic to caches. It is available on most Cisco™ routers although it does "
+"not appear to be officially supported by Cisco. The primary benefits of "
+"WCCP are"
+msgstr ""
+"`WCCP <http://cio.cisco.com/en/US/docs/ios/12_0t/12_0t3/feature/guide/wccp."
+"html>`_ はルーターがネットワークトラフィックをキャッシュに向ける準デファクト"
+"スタンダードです。Cisco™ から公式にサポートされているようには見えないもの"
+"の、多くの Cisco のルーターで利用可能です。WCCP の主な利益は次のとおりです。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:33
+msgid ""
+"WCCP fails open so that if the Traffic Server machine fails, it is bypassed "
+"and users continue to have Internet access."
+msgstr ""
+"Traffic Server マシンが失敗するように WCCP がオープンに失敗すると、それはバ"
+"イパスされユーザーはインターネットへのアクセスを継続できます。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:42
+msgid ""
+"Because the router serves as the inline network element, Traffic Server "
+"must run on a separate host. This host can be located anywhere as long as "
+"Traffic Server is either on the same network segment or a GRE tunnel can be "
+"maintained between the Traffic Server host and the router."
+msgstr ""
+"ルーターはインラインのネットワーク要素として動くので、Traffic Server は別の"
+"ホスト上で動作しなければ成りません。このホストは Traffic Server が同じネット"
+"ワークセグメント上にあるか Traffic Server のホストとルーターとの間で GRE ト"
+"ンネルが維持可能であればどこに置くこともできます。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:47
+msgid ""
+"|important| This document presumes that the router is already properly "
+"configured to handle traffic between the clients and the origin servers. If "
+"you are not certain, verify it before attempting to configure Traffic "
+"Server with WCCP. This is also a good state to which to revert should the "
+"configuration go badly."
+msgstr ""
+"|important| このドキュメントはルータがクライアントとオリジンサーバーとの間の"
+"トラッフィクを扱えるように正しく設定済みであることを仮定しています。もし確か"
+"でない場合は、WCCP を使うよう Traffic Server を設定する前に確認してくださ"
+"い。設定がおかしくなった際に元に戻すのも良い心がけです。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:54
+msgid "Configuration overview"
+msgstr "設定の概要"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:56
+msgid ""
+"Setting WCCP is a three step process, first configuring the router, the "
+"Traffic Server host, and Traffic Server."
+msgstr ""
+"WCCP の設定は、ルーターの設定、Traffic Server ホスト、そして Traffic Server "
+"の 3 ステップです。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:59
+msgid ""
+"|image1| The router will **not** respond to WCCP protocol packets unless "
+"explicitly configured to do so. Via WCCP, the router can be made to perform "
+"packet interception and redirection needed by Traffic Server transparency. "
+"The WCCP protocol in effect acts as means of controlling a rough form of "
+"policy routing with positive heartbeat cutoff."
+msgstr ""
+"|image1| ルーターは明示的に設定をしない限り WCCP プロトコルのパケットに応答"
+"\\ *しません*\\ 。WCCP では、ルーターがパケットの横取りと Traffic Server の"
+"透過性に必要とされる向き先の変更を行うように設定されます。WCCP プロトコルは"
+"事実上、positive heartbeat cutoff によりポリシールーティングのだいたいの形を"
+"制御する方法として振る舞います。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:65
+msgid ""
+"The Traffic Server host system must also be configured using ``iptables`` "
+"to accept connections on foreign addresses. This is done roughly the same "
+"way as the standard transparency use."
+msgstr ""
+"Traffic Server のホストシステムは外部アドレスの接続を受け付けるために "
+"``iptables`` を使うようにも設定されなかれば成りません。これは標準的な透過性"
+"の使用とだいたい同じ方法で行えます。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:69
+msgid ""
+"Finally Traffic Server itself must be configured for transparency and use "
+"of WCCP. The former is again very similar to the standard use, while WCCP "
+"configuration is specific to WCCP and uses a separate configuration file, "
+"referred to by the :file:`records.config` file."
+msgstr ""
+"最後に Traffic Server 自体が透過性と WCCP を使用するように設定されなければな"
+"りません。構成方法もまた標準的な使用とよく似ており、WCCP の設定は WCCP に特"
+"化していて分離された設定ファイルを使用しますが、:file:`records.config` ファ"
+"イルにより参照されます。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:74
+msgid ""
+"The primary concern for configuration in which of three basic topologies "
+"are to be used."
+msgstr "三種類のどの基本トポロジーが使用されるかによる設定における主な懸念。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:77
+msgid ""
+"Dedicated -- Traffic Server traffic goes over an interface that is not used "
+"for client nor origin server traffic."
+msgstr ""
+"専用 -- Traffic Server のトラフィックがクライアントにもオリジンサーバーのト"
+"ラフィックにも使われていないインターフェースに渡ります。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:79
+msgid ""
+"Shared -- Traffic Server traffic shares an interface with client or server "
+"traffic."
+msgstr ""
+"共有 -- Traffic Server のトラッフィクがクライアントまたはサーバーのトラ"
+"フィックとインターフェースを共有します。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:81
+msgid "Inside Shared -- Traffic Server and client traffic share an interface."
+msgstr ""
+"内部共有 -- Traffic Server とクライアントのトラフィックがインターフェースを"
+"共有します。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:83
+msgid ""
+"`Outside Shared <wccp-outside-shared.html>`_ -- Traffic Server and origin "
+"server traffic share an interface."
+msgstr ""
+"`外部共有 <wccp-outside-shared.html>`_ -- Traffic Server とオリジンサーバー"
+"のトラフィックがインターフェースを共有します。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:92
+msgid "Shared interface issues"
+msgstr "共有インターフェースの課題"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:94
+msgid ""
+"A shared interface topology has additional issues compared to a dedicated "
+"topology that must be handled. Such a topology is required if the router "
+"has only two interfaces, and because of these additional issues it is "
+"normally only used in such cases, although nothing prevents it use even if "
+"the router has three or more interfaces."
+msgstr ""
+"共有インターフェーストポロジーは専用トポロジーと比べると扱わなければならない"
+"追加の課題があります。このようなトポロジーはルーターが二つのインターフェース"
+"しか持っていない場合に必要となり、ルーターが三つ以上のインターフェースを持っ"
+"ている場合でもその使用を妨げるものはありませんが、これらの追加の課題があるの"
+"で通常はそのようなケースでしか使用されません。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:110
+msgid "Frequently encountered problems"
+msgstr "よくぶつかる問題"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:113
+msgid "MTU and fragmentation"
+msgstr "MTU と断片化"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:115
+msgid ""
+"In most cases the basic configuration using a tunnel in any topology can "
+"fail due to issues with fragmentation. The socket logic is unable to know "
+"that its packets will eventually be put in to a tunnel which will by its "
+"nature have a smaller `MTU <http://en.wikipedia.org/wiki/"
+"Maximum_transmission_unit>`_ than the physical interface which it uses. "
+"This can lead to pathological behavior or outright failure as the packets "
+"sent are just a little too big. It is not possible to solve easily by "
+"changing the MTU on the physical interface because the tunnel interface "
+"uses that to compute its own MTU."
+msgstr ""
+"ほとんどのケースではどのトポロジーでもトンネルを使用する基本設定は断片化の課"
+"題により失敗します。ソケットのロジックはパケットがいずれ物理インターフェース"
+"が使用するものより小さい `MTU <http://en.wikipedia.org/wiki/"
+"Maximum_transmission_unit>`_ をもったトンネルに入るということを知ることがで"
+"きません。これは送信したパケットがほんの少し大きすぎるのと同様に異常な振る舞"
+"いや完全な失敗を引き起こします。トンネルインターフェースは自身の MTU を計算"
+"するために物理インターフェース上の MTU を使用するのでそれを変更することで簡"
+"単に解決することはできません。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:126
+msgid "References"
+msgstr "参考文献"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:128
+msgid ""
+"`WCCP Router Configuration Commands - IOS 12.2 <http://www.cisco.com/en/US/"
+"docs/ios/12_2/configfun/command/reference/frf018.html>`_"
+msgstr ""
+"`WCCP Router Configuration Commands - IOS 12.2 <http://www.cisco.com/en/US/"
+"docs/ios/12_2/configfun/command/reference/frf018.html>`_"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:139
+msgid ""
+"Server side transparency should also be used, but it is not as significant. "
+"In its absence, however, origin servers may see the source address of "
+"connections suddenly change from the Traffic Server address to client "
+"addresses, which could cause problems. Further, the primary reason for not "
+"having server side transparency is to hide client addresses which is "
+"defeated if the Traffic Server host fails."
+msgstr ""
+"サーバー側の透過性も使用されるべきですが、重要なことではありません。それがな"
+"い場合であっても、オリジンサーバーは問題を起こすであろう突然 Traffic Server "
+"のアドレスからクライアントのアドレスへと変わる接続元のアドレスに遭遇するで"
+"しょう。また、サーバー側の透過性を持たない主な理由は、Traffic Server ホスト"
+"が動かなくなったときに使えなくなるクライアントのアドレスを隠すためです。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:147
+msgid "If your router has only one interface, it's hardly a *router*."
+msgstr ""
+"ルーターが一つのインターフェースしかもっていないなら、それはまったく\\ *ルー"
+"ター*\\ ではありません。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:150
+msgid ""
+"This is not fundamentally impossible, as the packets are distinct in layer"
+msgstr "パケットはレイヤー内では別々なので、本質的には不可能ではありません。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:36
+msgid ""
+"Use of WCCP only makes sense for client side transparency [1]_ because if "
+"the clients are explicitly proxied by Traffic Server there's no benefit to "
+"WCCP fail open, as the clients will continue to directly access the "
+"unresponsive Traffic Server host. It would be better to adjust the routing "
+"tables on the router for explicit proxying."
+msgstr ""
+"クライアントが Traffic Server によって明示的にプロキシーされている場合には "
+"WCCP の fail open に対して利益がなく、クライアントは応答しない Traffic "
+"Server ホストに直接アクセスできるので WCCP の使用はクライアント側の透過性で"
+"のみ意味をなします [1]_ 。ルーター上のルーティングテーブルを明示的なプロキ"
+"シーのために調整すると良いでしょう。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:86
+msgid ""
+"In general the dedicated topology is preferred. However, if the router has "
+"only two interfaces one of the shared topologies will be required [2]_ "
+"Click the links above for more detailed configuration information on a "
+"specific topology."
+msgstr ""
+"一般的には専用トポロジーが好まれます。しかしながら、ルーターが二つしかイン"
+"ターフェースを持っていない場合は二つの共有トポロジーのうちの一つが必要となり"
+"ます [2]_ 。特定のトポロジーでのより詳細な設定情報については上記のリンクをク"
+"リックしてください。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:100
+msgid ""
+"The basic concept for a shared interface is to use a tunnel to simulate the "
+"dedicated interface case. This enables the packets to be distinguished at "
+"layer 3. For this reason, layer 2 redirection cannot be used because the "
+"WCCP configuration cannot distinguish between packets returning from the "
+"origin server and packets returning from Traffic Server as they are "
+"distinguished only by layer 2 addressing [3]_. Fortunately the GRE tunnel "
+"used for packet forwarding and return can be used as the simulated "
+"interface for Traffic Server."
+msgstr ""
+"共有インターフェースのための基本的なコンセプトは専用インターフェースのケース"
+"をシミュレートするためにトンネルを使うことです。これはパケットがレイヤー 3 "
+"で識別できるようにします。この理由のために、オリジンサーバーから帰ってくるパ"
+"ケットと Traffic Server から帰ってくるパケットの識別はレイヤー 2 のアドレス"
+"でのみでき [3]_ WCCP の設定ではできないので、レイヤー 2 での向き先の変更は使"
+"うことができません。幸いパケットの転送と返送に使われる GRE トンネルが "
+"Traffic Server のためにシミュレートされたインターフェースとして使用できま"
+"す。"
+
+#: ../../admin/transparent-proxy/wccp-configuration.en.rst:31
+msgid ""
+"If already have a router that supports WCCP inline you do not have to "
+"change your network topology."
+msgstr ""
+"もしすでに WCCP インラインに対応したルーターを持っているのならネットワー"
+"クトポロジを変更する必要はありません。"
diff --git a/doc/locale/ja/LC_MESSAGES/admin/working-log-files.en.po b/doc/locale/ja/LC_MESSAGES/admin/working-log-files.en.po
new file mode 100644
index 00000000..88662ba5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/working-log-files.en.po
@@ -0,0 +1,1457 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/working-log-files.en.rst:4
+msgid "Working with Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:24
+msgid ""
+"Traffic Server generates log files that contain information about every "
+"request it receives and every error it detects."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:27
+msgid "This chapter discusses the following topics:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:37
+msgid "Understanding Traffic Server Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:39
+msgid ""
+"Traffic Server records information about every transaction (or request) it "
+"processes and every error it detects in log files. Traffic Server keeps "
+"three types of log files:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:43
+msgid ""
+"**Error log files** record information about why a particular transaction "
+"was in error."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:46
+msgid ""
+"**Event log files** (also called **access log files**) record information "
+"about the state of each transaction Traffic Server processes."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:50
+msgid ""
+"**System log files** record system information, including messages about "
+"the state of Traffic Server and errors/warnings it produces. This kind of "
+"information might include a note that event log files were rolled, a "
+"warning that cluster communication timed out, or an error indicating that "
+"Traffic Server was restarted."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:56
+msgid ""
+"All system information messages are logged with the system-wide logging "
+"facility :manpage:`syslog` under the daemon facility. The :manpage:`syslog."
+"conf(5)` configuration file (stored in the ``/etc`` directory) specifies "
+"where these messages are logged. A typical location is ``/var/log/"
+"messages`` (Linux)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:62
+msgid ""
+"The :manpage:`syslog(8)` process works on a system-wide basis, so it serves "
+"as the single repository for messages from all Traffic Server processes "
+"(including :program:`traffic_server`, :program:`traffic_manager`, and :"
+"program:`traffic_cop`)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:67
+msgid ""
+"System information logs observe a static format. Each log entry in the log "
+"contains information about the date and time the error was logged, the "
+"hostname of the Traffic Server that reported the error, and a description "
+"of the error or warning."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:72
+msgid ""
+"Refer to :ref:`traffic-server-error-messages` for a list of the messages "
+"logged by Traffic Server."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:75
+msgid ""
+"By default, Traffic Server creates both error and event log files and "
+"records system information in system log files. You can disable event "
+"logging and/or error logging by setting the configuration variable :ts:cv:"
+"`proxy.config.log.logging_enabled` (in the :file:`records.config` file) to "
+"one of the following values:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:81
+msgid "``0`` to disable both event and error logging"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:82
+msgid "``1`` to enable error logging only"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:83
+msgid "``2`` to enable transaction logging only"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:84
+msgid "``3`` to enable both transaction and error logging"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:87
+msgid "Understanding Event Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:89
+msgid ""
+"Event log files record information about every request that Traffic Server "
+"processes. By analyzing the log files, you can determine how many people "
+"use the Traffic Server cache, how much information each person requested, "
+"what pages are most popular, and so on. Traffic Server supports several "
+"standard log file formats, such as Squid and Netscape, as well as user-"
+"defined custom formats. You can analyze the standard format log files with "
+"off-the-shelf analysis packages. To help with log file analysis, you can "
+"separate log files so they contain information specific to protocol or "
+"hosts. You can also configure Traffic Server to roll log files "
+"automatically at specific intervals during the day or when they reach a "
+"certain size."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:101
+msgid ""
+"The following sections describe the Traffic Server logging system features "
+"and discuss how to:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:104
+msgid "**Manage your event log files**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:106
+msgid ""
+"You can choose a central location for storing log files, set how much disk "
+"space to use for log files, and set how and when to roll log files. Refer "
+"to `Managing Event Log Files`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:110
+msgid "**Choose different event log file formats**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:112
+msgid ""
+"You can choose which standard log file formats you want to use for traffic "
+"analysis, such as Squid or Netscape. Alternatively, you can use the Traffic "
+"Server custom format, which is XML-based and enables you to institute more "
+"control over the type of information recorded in log files. Refer to "
+"`Choosing Event Log File Formats`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:118
+msgid "**Roll event log files automatically**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:120
+msgid ""
+"Configure Traffic Server to roll event log files at specific intervals "
+"during the day or when they reach a certain size; this enables you to "
+"identify and manipulate log files that are no longer active. Refer to "
+"`Rolling Event Log Files`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:125
+msgid "**Separate log files according to protocols and hosts**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:127
+msgid ""
+"Configure Traffic Server to create separate log files for different "
+"protocols. You can also configure Traffic Server to generate separate log "
+"files for requests served by different hosts. Refer to `Splitting Event Log "
+"Files`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:131
+msgid "**Collate log files from different Traffic Server nodes**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:133
+msgid ""
+"Designate one or more nodes on the network to serve as log collation "
+"servers. These servers, which might be standalone or part of Traffic "
+"Server, enable you to keep all logged information in well-defined "
+"locations. Refer to `Collating Event Log Files`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:138
+msgid "**View statistics about the logging system**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:140
+msgid ""
+"Traffic Server provides statistics about the logging system; you can access "
+"these statistics via Traffic Line. Refer to `Viewing Logging Statistics`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:143
+msgid "**Interpret log file entries for the log file formats**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:145
+msgid "Refer to `Example Event Log File Entries`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:148
+msgid "Managing Event Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:150
+msgid ""
+"Traffic Server enables you to control where event log files are located and "
+"how much space they can consume. Additionally you can specify how to handle "
+"low disk space in the logging directory."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:155
+msgid "Choosing the Logging Directory"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:157
+msgid ""
+"By default, Traffic Server writes all event log files in the ``logs`` "
+"directory located in the directory where you installed Traffic Server. To "
+"use a different directory, refer to `Setting Log File Management Options`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:162
+msgid "Controlling Logging Space"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:164
+msgid ""
+"Traffic Server enables you to control the amount of disk space that the "
+"logging directory can consume. This allows the system to operate smoothly "
+"within a specified space window for a long period of time. After you "
+"establish a space limit, Traffic Server continues to monitor the space in "
+"the logging directory. When the free space dwindles to the headroom limit "
+"(see `Setting Log File Management Options`_), it enters a low space state "
+"and takes the following actions:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:172
+msgid ""
+"If the autodelete option (discussed in `Rolling Event Log Files`_) is "
+"*enabled*, then Traffic Server identifies previously-rolled log files (i."
+"e., log files with the ``.old`` extension). It starts deleting files one by "
+"one, beginning with the oldest file, until it emerges from the low state. "
+"Traffic Server logs a record of all deleted files in the system error log."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:179
+msgid ""
+"If the autodelete option is *disabled* or there are not enough old log "
+"files to delete for the system to emerge from its low space state, then "
+"Traffic Server issues a warning and continues logging until space is "
+"exhausted. When available space is consumed, event logging stops. Traffic "
+"Server resumes event logging when enough space becomes available for it to "
+"exit the low space state. To make space available, either explicitly "
+"increase the logging space limit or remove files from the logging directory "
+"manually."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:188
+msgid ""
+"You can run a :manpage:`cron(8)` script in conjunction with Traffic Server "
+"to automatically remove old log files from the logging directory before "
+"Traffic Server enters the low space state. Relocate the old log files to a "
+"temporary partition, where you can run a variety of log analysis scripts. "
+"Following analysis, either compress the logs and move to an archive "
+"location, or simply delete them."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:199
+msgid "Setting Log File Management Options"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:201
+msgid "To set log management options, follow the steps below:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:203
+#: ../../admin/working-log-files.en.rst:238
+#: ../../admin/working-log-files.en.rst:576
+#: ../../admin/working-log-files.en.rst:660
+msgid "In the :file:`records.config` file, edit the following variables"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:205
+#: ../../admin/working-log-files.en.rst:808
+msgid ":ts:cv:`proxy.config.log.logfile_dir`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:206
+msgid ":ts:cv:`proxy.config.log.max_space_mb_for_logs`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:207
+msgid ":ts:cv:`proxy.config.log.max_space_mb_headroom`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:209
+#: ../../admin/working-log-files.en.rst:267
+#: ../../admin/working-log-files.en.rst:583
+#: ../../admin/working-log-files.en.rst:665
+#: ../../admin/working-log-files.en.rst:696
+#: ../../admin/working-log-files.en.rst:767
+#: ../../admin/working-log-files.en.rst:834
+msgid ""
+"Run the command :option:`traffic_line -x` to apply the configuration "
+"changes."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:213
+msgid "Choosing Event Log File Formats"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:215
+msgid "Traffic Server supports the following log file formats:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:217
+msgid ""
+"Standard formats, such as Squid or Netscape; refer to `Using Standard "
+"Formats`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:218
+msgid "The Traffic Server custom format; refer to `Using the Custom Format`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:220
+msgid ""
+"In addition to the standard and custom log file format, you can choose "
+"whether to save log files in binary or ASCII; refer to `Choosing Binary or "
+"ASCII`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:223
+msgid ""
+"Event log files consume substantial disk space. Creating log entries in "
+"multiple formats at the same time can consume disk resources very quickly "
+"and adversely impact Traffic Server performance."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:228
+msgid "Using Standard Formats"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:230
+msgid ""
+"The standard log formats include Squid, Netscape Common, Netscape extended, "
+"and Netscape Extended-2. The standard log file formats can be analyzed with "
+"a wide variety of off-the-shelf log-analysis packages. You should use one "
+"of the standard event log formats unless you need information that these "
+"formats do not provide. Refer to `Using the Custom Format`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:236
+msgid "Set standard log file format options by following the steps below:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:239
+msgid "Edit the following variables to use the Squid format:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:241
+msgid ":ts:cv:`proxy.config.log.squid_log_enabled`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:242
+msgid ":ts:cv:`proxy.config.log.squid_log_is_ascii`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:243
+msgid ":ts:cv:`proxy.config.log.squid_log_name`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:244
+msgid ":ts:cv:`proxy.config.log.squid_log_header`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:246
+msgid "To use the Netscape Common format, edit the following variables:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:248
+msgid ":ts:cv:`proxy.config.log.common_log_enabled`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:249
+msgid ":ts:cv:`proxy.config.log.common_log_is_ascii`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:250
+msgid ":ts:cv:`proxy.config.log.common_log_name`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:251
+msgid ":ts:cv:`proxy.config.log.common_log_header`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:253
+msgid "To use the Netscape Extended format, edit the following variables:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:255
+msgid ":ts:cv:`proxy.config.log.extended_log_enabled`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:256
+msgid ":ts:cv:`proxy.config.log.extended_log_is_ascii`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:257
+msgid ":ts:cv:`proxy.config.log.extended_log_name`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:258
+msgid ":ts:cv:`proxy.config.log.extended_log_header`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:260
+msgid "To use the Netscape Extended-2 format, edit the following variables:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:262
+msgid ":ts:cv:`proxy.config.log.extended2_log_enabled`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:263
+msgid ":ts:cv:`proxy.config.log.extended2_log_is_ascii`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:264
+msgid ":ts:cv:`proxy.config.log.extended2_log_name`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:265
+msgid ":ts:cv:`proxy.config.log.extended2_log_header`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:275
+msgid "Using the Custom Format"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:277
+msgid ""
+"The XML-based custom log format is more flexible then the standard log file "
+"formats and gives you more control over the type of information recorded in "
+"log files. You should create a custom log format if you need data for "
+"analysis that's not available in the standard formats. You can decide what "
+"information to record for each Traffic Server transaction and create "
+"filters that specify which transactions to log."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:284
+msgid ""
+"The heart of the XML-based custom logging feature is the XML-based logging "
+"configuration file (:file:`logs_xml.config`) that enables you to create "
+"very modular descriptions of logging objects. The :file:`logs_xml.config` "
+"file uses three types of objects to create custom log files, as detailed "
+"below. To generate a custom log format, you must specify at least one "
+"``LogObject`` definition (one log file is produced for each ``LogObject`` "
+"definition)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:292
+msgid ""
+"The ``LogFormat`` object defines the content of the log file using printf-"
+"style format strings."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:294
+msgid ""
+"The ``LogFilter`` object defines a filter so that you include or exclude "
+"certain information from the log file."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:296
+msgid ""
+"The ``LogObject`` object specifies all the information needed to produce a "
+"log file."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:299
+msgid "The name of the log file. (required)"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:300
+msgid ""
+"The format to be used (required). This can be a standard format (Squid or "
+"Netscape) or"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:302
+msgid ""
+"a previously-defined custom format (i.e., a previously-defined "
+"``LogFormat`` object)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:304
+msgid ""
+"The file mode: ``ASCII``, ``Binary``, or ``ASCII_PIPE``. The default is "
+"``ASCII``. The ``ASCII_PIPE`` mode writes log entries to a UNIX-named pipe "
+"(a buffer in memory); other processes can then read the data using standard "
+"I/O functions. The advantage of this option is that Traffic Server does not "
+"have to write to disk, which frees disk space and bandwidth for other "
+"tasks. When the buffer is full, Traffic Server drops log entries and issues "
+"an error message indicating how many entries were dropped. Because Traffic "
+"Server only writes complete log entries to the pipe, only full records are "
+"dropped."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:315
+msgid ""
+"Any filters you want to use (i.e., previously-defined ``LogFilter`` "
+"objects)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:317
+msgid "The collation servers that are to receive the log files."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:318
+msgid ""
+"The protocols you want to log. If the protocols tag is used, then Traffic "
+"Server will only log transactions from the protocols listed; otherwise, all "
+"transactions for all protocols are logged."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:321
+msgid ""
+"The origin servers you want to log. If the ``servers`` tag is used, then "
+"Traffic Server will only log transactions for the origin servers listed; "
+"otherwise, transactions for all origin servers are logged."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:325
+msgid ""
+"The header text you want the log files to contain. The header text appears "
+"at the beginning of the log file, just before the first record."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:328
+msgid "The log file rolling options."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:330
+msgid "In order to accomplish this, we"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:332
+msgid "edit the following variables in the :file:`records.config` file:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:334
+msgid ":ts:cv:`proxy.config.log.custom_logs_enabled`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:335
+msgid "In the :file:`logs_xml.config` file"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:337
+msgid ""
+"Add :ref:`LogFormat`, :ref:`LogFilters`, and :ref:`LogObject` "
+"specifications to the configuration file."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:339
+msgid "Save and close the :file:`logs_xml.config` file."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:340
+msgid ""
+"Run the command :option:`traffic_line -x` to apply your configuration "
+"changes."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:344
+msgid "Creating Summary Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:346
+msgid ""
+"Traffic Server performs several hundred operations per second; therefore, "
+"event log files can quickly grow to large sizes. Using SQL-like aggregate "
+"operators, you can configure Traffic Server to create summary log files "
+"that summarize a set of log entries over a specified period of time. This "
+"can significantly reduce the size of the log files generated."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:353
+msgid ""
+"To generate a summary log file, create a :ref:`LogFormat` object in the XML-"
+"based logging configuration file (:file:`logs_xml.config`) using the SQL-"
+"like aggregate operators below. You can apply each of these operators to "
+"specific fields, over a specified interval."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:359
+msgid "``COUNT``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:360
+msgid "``SUM``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:361
+msgid "``AVERAGE``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:362
+msgid "``FIRST``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:363
+msgid "``LAST``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:365
+msgid "To create a summary log file format, we"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:367
+msgid ""
+"Define the format of the log file in :file:`logs_xml.config` as follows:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:380
+msgid ""
+"where ``operator`` is one of the five aggregate operators (``COUNT``, "
+"``SUM``, ``AVERAGE``, ``FIRST``, ``LAST``), ``field`` is the logging field "
+"you want to aggregate, and ``n`` is the interval (in seconds) between "
+"summary log entries. You can specify more than one ``operator`` in the "
+"format line. For more information, refer to :file`logs_xml.config`."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:387
+msgid ""
+"Run the command :option:`traffic_line -x` to apply configuration changes ."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:389
+msgid ""
+"The following example format generates one entry every 10 seconds. Each "
+"entry contains the timestamp of the last entry of the interval, a count of "
+"the number of entries seen within that 10-second interval, and the sum of "
+"all bytes sent to the client: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:402
+msgid ""
+"You cannot create a format specification that contains both aggregate "
+"operators and regular fields. For example, the following specification "
+"would be **invalid**: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:409
+msgid "Choosing Binary or ASCII"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:411
+msgid ""
+"You can configure Traffic Server to create event log files in either of the "
+"following:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:414
+msgid "**ASCII**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:416
+msgid ""
+"These files are human-readable and can be processed using standard, off-the-"
+"shelf log analysis tools. However, Traffic Server must perform additional "
+"processing to create the files in ASCII, which mildly impacts system "
+"overhead. ASCII files also tend to be larger than the equivalent binary "
+"files. By default, ASCII log files have a ``.log`` filename extension."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:423
+msgid "**Binary**"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:425
+msgid ""
+"These files generate lower system overhead and generally occupy less space "
+"on the disk than ASCII files (depending on the type of information being "
+"logged). However, you must use a converter application before you can read "
+"or analyze binary files via standard tools. By default, binary log files "
+"use a ``.blog`` filename extension."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:432
+msgid ""
+"While binary log files typically require less disk space, there are "
+"exceptions."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:435
+msgid ""
+"For example: the value ``0`` (zero) requires only one byte to store in "
+"ASCII, but requires four bytes when stored as a binary integer. Conversely: "
+"if you define a custom format that logs IP addresses, then a binary log "
+"file would only require four bytes of storage per 32-bit address. However, "
+"the same IP address stored in dot notation would require around 15 "
+"characters (bytes) in an ASCII log file. Therefore, it's wise to consider "
+"the type of data that will be logged before you select ASCII or binary for "
+"your log files. For example, you might try logging for one day using ASCII "
+"and then another day using binary. If the number of requests is roughly the "
+"same for both days, then you can calculate a rough metric that compares the "
+"two formats."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:447
+msgid ""
+"For standard log formats, select Binary or ASCII (refer to `Setting "
+"Standard Log File Format Options`). For the custom log format, specify "
+"ASCII or Binary mode in the :ref:`LogObject` (refer to :ref:`Using the "
+"Custom Format <using-custom-log-formats>`). In addition to the ASCII and "
+"binary options, you can also write custom log entries to a UNIX-named pipe "
+"(i.e., a buffer in memory). Other processes can then read the data using "
+"standard I/O functions. The advantage of using this option is that Traffic "
+"Server does not have to write to disk, which frees disk space and bandwidth "
+"for other tasks. In addition, writing to a pipe does not stop when logging "
+"space is exhausted because the pipe does not use disk space. Refer to :file:"
+"`logs_xml.config` for more information about the ``ASCII_PIPE`` option."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:463
+msgid "Rolling Event Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:465
+msgid ""
+"Traffic Server provides automatic log file rolling. This means that at "
+"specific intervals during the day or when log files reach a certain size, "
+"Traffic Server closes its current set of log files and opens new log files. "
+"Depending on the amount of traffic your servers are exposed to, you should "
+"roll log files several times a day. Rolling every six hours is a good "
+"guideline to start with."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:472
+msgid "Log file rolling offers the following benefits:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:474
+msgid "It defines an interval over which log analysis can be performed."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:475
+msgid ""
+"It keeps any single log file from becoming too large and helps to keep the "
+"logging system within the specified space limits."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:477
+msgid ""
+"It provides an easy way to identify files that are no longer being used so "
+"that an automated script can clean the logging directory and run log "
+"analysis programs."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:482
+msgid "Rolled Log Filename Format"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:484
+msgid ""
+"Traffic Server provides a consistent naming scheme for rolled log files "
+"that enables you to easily identify log files. When Traffic Server rolls a "
+"log file, it saves and closes the old file before it starts a new file. "
+"Traffic Server renames the old file to include the following information:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:490
+msgid "The format of the file (such as ``squid.log``)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:491
+msgid "The hostname of the Traffic Server that generated the log file."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:492
+msgid ""
+"Two timestamps separated by a hyphen (``-``). The first timestamp is a "
+"**lower bound** for the timestamp of the first record in the log file. The "
+"lower bound is the time when the new buffer for log records is created. "
+"Under low load, the first timestamp in the filename can be different from "
+"the timestamp of the first entry. Under normal load, the first timestamp in "
+"the filename and the timestamp of the first entry are similar. The second "
+"timestamp is an **upper bound** for the timestamp of the last record in the "
+"log file (this is normally the rolling time)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:501
+msgid ""
+"The suffix ``.old``, which makes it easy for automated scripts to find "
+"rolled log files."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:504
+msgid "Timestamps have the following format: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:508
+msgid "The following table describes the format:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:511
+msgid "``%Y``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:511
+msgid "The year in four-digit format. For example: 2000."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:514
+#: ../../admin/working-log-files.en.rst:523
+msgid "``%M``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:514
+msgid "The month in two-digit format, from 01-12. For example: 07."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:517
+msgid "``%D``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:517
+msgid "The day in two-digit format, from 01-31. For example: 19."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:520
+msgid "``%H``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:520
+msgid "The hour in two-digit format, from 00-23. For example: 21."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:523
+msgid "The minute in two-digit format, from 00-59. For example: 52."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:526
+msgid "``%S``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:526
+msgid "The second in two-digit format, from 00-59. For example: 36."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:528
+msgid "The following is an example of a rolled log filename: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:532
+msgid ""
+"The logging system buffers log records before writing them to disk. When a "
+"log file is rolled, the log buffer might be partially full. If it is, then "
+"the first entry in the new log file will have a timestamp earlier than the "
+"time of rolling. When the new log file is rolled, its first timestamp will "
+"be a lower bound for the timestamp of the first entry."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:538
+msgid ""
+"For example, suppose logs are rolled every three hours, and the first "
+"rolled log file is: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:543
+msgid ""
+"If the lower bound for the first entry in the log buffer at 3:00:00 is "
+"2:59:47, then the next log file will have the following timestamp when "
+"rolled: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:549
+msgid ""
+"The contents of a log file are always between the two timestamps. Log files "
+"do not contain overlapping entries, even if successive timestamps appear to "
+"overlap."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:554
+msgid "Rolling Intervals"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:556
+msgid ""
+"Log files are rolled at specific intervals relative to a given hour of the "
+"day. Two options control when log files are rolled:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:559
+msgid "The offset hour, which is an hour between 0 (midnight) and 23"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:560
+msgid "The rolling interval"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:562
+msgid ""
+"Both the offset hour and the rolling interval determine when log file "
+"rolling starts. Rolling occurs every rolling interval and at the offset "
+"hour. For example, if the rolling interval is six hours and the offset hour "
+"is 0 (midnight), then the logs will roll at midnight (00:00), 06:00, 12:00, "
+"and 18:00 each day. If the rolling interval is 12 hours and the offset hour "
+"is 3, then logs will roll at 03:00 and 15:00 each day."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:571
+msgid "Setting Log File Rolling Options"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:573
+msgid ""
+"To set log file rolling options and/or configure Traffic Server to roll log "
+"files when they reach a certain size, follow the steps below:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:578
+msgid ":ts:cv:`proxy.config.log.rolling_enabled`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:579
+msgid ":ts:cv:`proxy.config.log.rolling_size_mb`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:580
+msgid ":ts:cv:`proxy.config.log.rolling_offset_hr`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:581
+msgid ":ts:cv:`proxy.config.log.rolling_interval_sec`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:586
+msgid ""
+"You can fine-tune log file rolling settings for a custom log file in the :"
+"ref:`LogObject` specification in the :file:`logs_xml.config` file. The "
+"custom log file uses the rolling settings in its :ref:`LogObject`, which "
+"override the default settings you specify in Traffic Manager or the :file:"
+"`records.config` file described above."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:596
+msgid "Splitting Event Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:598
+msgid ""
+"By default, Traffic Server uses standard log formats and generates log "
+"files that contain HTTP & ICP transactions in the same file. However, you "
+"can enable log splitting if you prefer to log transactions for different "
+"protocols in separate log files."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:604
+msgid "ICP Log Splitting"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:606
+msgid ""
+"When ICP log splitting is enabled, Traffic Server records ICP transactions "
+"in a separate log file with a name that contains ``icp``. For example: if "
+"you enable the Squid format, then all ICP transactions are recorded in the "
+"``squid-icp.log`` file. When you disable ICP log splitting, Traffic Server "
+"records all ICP transactions in the same log file as HTTP transactions."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:614
+msgid "HTTP Host Log Splitting"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:616
+msgid ""
+"HTTP host log splitting enables you to record HTTP transactions for "
+"different origin servers in separate log files. When HTTP host log "
+"splitting is enabled, Traffic Server creates a separate log file for each "
+"origin server that's listed in the :file:`log_hosts.config` file. When both "
+"ICP and HTTP host log splitting are enabled, Traffic Server generates "
+"separate log files for HTTP transactions (based on the origin server) and "
+"places all ICP transactions in their own respective log files. For example, "
+"if the :file:`log_hosts.config` file contains the two origin servers ``uni."
+"edu`` and ``company.com`` and Squid format is enabled, then Traffic Server "
+"generates the following log files:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:628
+#: ../../admin/working-log-files.en.rst:644
+msgid "``squid-uni.edu.log``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:628
+msgid "All HTTP transactions for ``uni.edu``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:631
+#: ../../admin/working-log-files.en.rst:647
+msgid "``squid-company.com.log``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:631
+msgid "All HTTP transactions for ``company.com``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:634
+msgid "``squid-icp.log``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:634
+msgid "All ICP transactions for all hosts"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:637
+#: ../../admin/working-log-files.en.rst:650
+msgid "``squid.log``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:637
+msgid "All HTTP transactions for other hosts"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:639
+msgid ""
+"If you disable ICP log splitting, then ICP transactions are placed in the "
+"same log file as HTTP transactions. Using the hosts and log format from the "
+"previous example, Traffic Server generates the log files below:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:644
+msgid "All entries for ``uni.edu``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:647
+msgid "All entries for ``company.com``"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:650
+msgid "All other entries"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:652
+msgid ""
+"Traffic Server also enables you to create XML-based :ref:`Custom Log "
+"Formats <using-custom-log-formats>` that offer even greater control over "
+"log file generation."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:656
+msgid "Setting Log Splitting Options"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:658
+msgid "To set log splitting options, follow the steps below:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:662
+msgid ":ts:cv:`proxy.config.log.separate_icp_logs`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:663
+msgid ":ts:cv:`proxy.config.log.separate_host_logs`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:669
+msgid "Editing the log_hosts.config File"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:671
+msgid ""
+"The default :file:`log_hosts.config` file is located in the Traffic Server "
+"``config`` directory. To record HTTP transactions for different origin "
+"servers in separate log files, you must specify the hostname of each origin "
+"server on a separate line in the :file:`log_hosts.config` file. For "
+"example, if you specify the keyword sports, then Traffic Server records all "
+"HTTP transactions from ``sports.yahoo.com`` and ``www.foxsports.com`` in a "
+"log file called ``squid-sports.log`` (if the Squid format is enabled)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:682
+msgid ""
+"If Traffic Server is clustered and you enable log file collation, then you "
+"should use the same :file:`log_hosts.config` file on every Traffic Server "
+"node in the cluster."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:686
+msgid "To edit the :file:`log_hosts.config` file follow the steps below:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:688
+msgid ""
+"In the :file:`log_hosts.config` file, enter the hostname of each origin "
+"server on a separate line in the file, e.g.: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:700
+msgid "Collating Event Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:702
+msgid ""
+"You can use the Traffic Server log file collation feature to collect all "
+"logged information in one place. Log collation enables you to analyze a set "
+"of Traffic Server clustered nodes as a whole (rather than as individual "
+"nodes) and to use a large disk that might only be located on one of the "
+"nodes in the cluster. Traffic Server collates log files by using one or "
+"more nodes as log collation servers and all remaining nodes as log "
+"collation clients. When a Traffic Server node generates a buffer of event "
+"log entries, it first determines if it is the collation server or a "
+"collation client. The collation server node writes all log buffers to its "
+"local disk, just as it would if log collation was not enabled. Log "
+"collation servers can be standalone or they can be part of a node running "
+"Traffic Server."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:715
+msgid ""
+"The collation client nodes prepare their log buffers for transfer across "
+"the network and send the buffers to the log collation server. When the log "
+"collation server receives a log buffer from a client, it writes it to its "
+"own log file as if it was generated locally. For a visual representation of "
+"this, see the figure below."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:725
+msgid "Log collation"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:727
+msgid ""
+"If log clients cannot contact their log collation server, then they write "
+"their log buffers to their local disks, into *orphan* log files. Orphan log "
+"files require manual collation."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:733
+msgid ""
+"Log collation can have an impact on network performance. Because all nodes "
+"are forwarding their log data buffers to the single collation server, a "
+"bottleneck can occur. In addition, collated log files contain timestamp "
+"information for each entry, but entries in the files do not appear in "
+"strict chronological order. You may want to sort collated log files before "
+"doing analysis."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:740
+msgid ""
+"To configure Traffic Server to collate event log files, you must perform "
+"the following tasks:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:743
+msgid ""
+"Either `Configure Traffic Server Node to Be a Collation Server <Configuring "
+"Traffic Server to Be a Collation Server>`_ or install & configure a "
+"`Standalone Collator <Using a Standalone Collator>`_"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:746
+msgid ""
+"`Configure Traffic Server Nodes to Be a Collation Clients <Configuring "
+"Traffic Server to Be a Collation Server>`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:748
+msgid ""
+"Add an attribute to the :ref:`LogObject` specification in the :file:"
+"`logs_xml.config` file if you are using custom log file formats; refer to "
+"`Collating Custom Event Log Files`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:756
+msgid "Configuring Traffic Server to Be a Collation Server"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:758
+msgid ""
+"To configure a Traffic Server node to be a collation server, simply edit a "
+"configuration file via the steps below."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:761
+msgid "In the :file:`records.config`  file, edit the following variables"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:763
+msgid ":ts:cv:`proxy.local.log.collation_mode` (``1`` for server mode)"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:764
+#: ../../admin/working-log-files.en.rst:829
+msgid ":ts:cv:`proxy.config.log.collation_port`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:765
+#: ../../admin/working-log-files.en.rst:830
+msgid ":ts:cv:`proxy.config.log.collation_secret`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:772
+msgid ""
+"If you modify the ``collation_port`` or ``secret`` after connections "
+"between the collation server and collation clients have been established, "
+"then you must restart Traffic Server."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:777
+msgid "Using a Standalone Collator"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:779
+msgid ""
+"If you do not want the log collation server to be a Traffic Server node, "
+"then you can install and configure a standalone collator (SAC) that will "
+"dedicate more of its power to collecting, processing, and writing log files."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:784
+msgid "To install and configure a standalone collator:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:786
+msgid ""
+"Configure your Traffic Server nodes as log collation clients; refer to "
+"`Configuring Traffic Server to Be a Collation Client "
+"<#ConfiguringTSCollationClient>`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:789
+msgid ""
+"Copy the :program:`traffic_sac` binary from the Traffic Server ``bin`` "
+"directory and"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:791
+msgid ""
+"Copy the ``libtsutil.so`` libraries from the Traffic Server ``lib`` "
+"directory to the machine serving as the standalone collator."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:793
+msgid ""
+"Create a directory called ``config`` in the directory that contains the :"
+"program:`traffic_sac` binary."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:795
+msgid ""
+"Create a directory called ``internal`` in the ``config`` directory you "
+"created in Step 4 (above). This directory is used internally by the "
+"standalone collator to store lock files."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:798
+msgid ""
+"Copy the :file:`records.config` file from a Traffic Server node configured "
+"to be a log collation client to the ``config`` directory you created in "
+"Step 4 on the standalone collator. The :file:`records.config` file contains "
+"the log collation secret and the port you specified when configuring "
+"Traffic Server nodes to be collation clients. The collation port and secret "
+"must be the same for all collation clients and servers."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:805
+msgid "In the :file:`records.config` file, edit the following variable"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:810
+msgid "Enter the following command::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:815
+msgid "Configuring Traffic Server to Be a Collation Client"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:817
+msgid ""
+"To configure a Traffic Server node to be a collation client, follow the "
+"steps below. If you modify the ``collation_port`` or ``secret`` after "
+"connections between the collation clients and the collation server have "
+"been established, then you must restart Traffic Server."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:822
+msgid "In the :file:`records.config` file, edit the following variables:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:824
+msgid ""
+":ts:cv:`proxy.local.log.collation_mode`: ``2`` to configure this node as "
+"log collation client and send standard formatted log entries to the "
+"collation server. For XML-based formatted log entries, see :file:`logs_xml."
+"config` file; refer to :ref:`Using the Custom Format <using-custom-log-"
+"formats>`."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:828
+msgid ":ts:cv:`proxy.config.log.collation_host`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:831
+msgid ":ts:cv:`proxy.config.log.collation_host_tagged`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:832
+msgid ":ts:cv:`proxy.config.log.max_space_mb_for_orphan_logs`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:838
+msgid "Collating Custom Event Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:840
+msgid ""
+"If you use custom event log files, then you must edit the :file:`logs_xml."
+"config` file (in addition to configuring a collation server and collation "
+"clients)."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:844
+msgid "To collate custom event log files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:846
+msgid "On each collation client, edit the `:file:`logs_xml.config`"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:847
+msgid ""
+"Add the :ref:`CollationHost <logs-xml-logobject-collationhost>` attribute "
+"to the :ref:`LogObject` specification: ::"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:858
+msgid ""
+"where ``ipaddress`` is the hostname or IP address of the collation server "
+"to which all log entries (for this object) are forwarded, and ``port`` is "
+"the port number for communication between the collation server and "
+"collation clients."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:863
+msgid ""
+"Run the command :option:`traffic_line -L` to restart Traffic Server on the "
+"local node or :option:`traffic_line -M` to restart Traffic Server on all "
+"the nodes in a cluster."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:868
+msgid "Viewing Logging Statistics"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:870
+msgid ""
+"Traffic Server generates logging statistics that enable you to see the "
+"following information:"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:873
+msgid "How many log files (formats) are currently being written."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:874
+msgid ""
+"The current amount of space used by the logging directory, which contains "
+"all event and error logs."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:876
+msgid ""
+"The number of access events written to log files since Traffic Server "
+"installation. This counter represents one entry in one file; if multiple "
+"formats are being written, then a single event creates multiple event log "
+"entries."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:880
+msgid ""
+"The number of access events skipped (because they were filtered) since "
+"Traffic Server installation."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:882
+msgid ""
+"The number of access events written to the event error log since Traffic "
+"Server installation."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:885
+msgid ""
+"You can retrieve the statistics via the Traffic Line command-line "
+"interface; refer to `Monitoring Traffic <../monitoring-traffic>`_."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:889
+msgid "Viewing Log Files"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:891
+msgid ""
+"You can view the system, event, and error log files Traffic Server creates. "
+"You can also delete a log file or copy it to your local system if you have "
+"the correct user permissions. Traffic Server displays only one MB of "
+"information in the log file. If the log file you select to view is bigger "
+"than 1MB, then Traffic Server truncates the file and displays a warning "
+"message indicating that the file is too big."
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:899
+msgid "Online Event Log XML Builder"
+msgstr ""
+
+#: ../../admin/working-log-files.en.rst:901
+msgid ""
+"If you need any assistance building your event log, you can try out our "
+"`online log builder <http://trafficserver.apache.org/logbuilder/>`_. This "
+"is a work in progress, so any comments, critique or suggestions are most "
+"welcome."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/admin/working-log-files/log-formats.en.po b/doc/locale/ja/LC_MESSAGES/admin/working-log-files/log-formats.en.po
new file mode 100644
index 00000000..039b5bf6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/admin/working-log-files/log-formats.en.po
@@ -0,0 +1,545 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../admin/working-log-files/log-formats.en.rst:4
+msgid "Log Formats"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:26
+msgid "Squid Format"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:32
+#: ../../admin/working-log-files/log-formats.en.rst:115
+msgid "``1``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:29
+msgid ""
+"``cqtq`` The client request timestamp in Squid format; the time of the "
+"client request in seconds since January 1, 1970 UTC (with millisecond "
+"resolution)."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:39
+#: ../../admin/working-log-files/log-formats.en.rst:119
+msgid "``2``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:35
+msgid ""
+"``ttms`` The time Traffic Server spent processing the client request; the "
+"number of milliseconds between the time the client established the "
+"connection with Traffic Server and the time Traffic Server sent the last "
+"byte of the response back to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:43
+#: ../../admin/working-log-files/log-formats.en.rst:124
+msgid "``3``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:42
+#: ../../admin/working-log-files/log-formats.en.rst:114
+msgid "``chi`` The IP address of the client’s host machine."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:51
+#: ../../admin/working-log-files/log-formats.en.rst:128
+msgid "``4``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:46
+msgid ""
+"``crc/pssc`` The cache result code; how the cache responded to the request: "
+"``HIT``, ``MISS``, and so on. Cache result codes are described :ref:`here "
+"<squid-netscape-result-codes>`. The proxy response status code (the HTTP "
+"response status code from Traffic Server to client)."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:56
+#: ../../admin/working-log-files/log-formats.en.rst:132
+msgid "``5``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:54
+msgid ""
+"``psql`` The length of the Traffic Server response to the client in bytes, "
+"including headers and content."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:60
+#: ../../admin/working-log-files/log-formats.en.rst:136
+msgid "``6``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:59
+msgid "``cqhm`` The client request method: ``GET``, ``POST``, and so on."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:67
+#: ../../admin/working-log-files/log-formats.en.rst:140
+msgid "``7``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:63
+msgid ""
+"``cquc`` The client request canonical URL; blanks and other characters that "
+"might not be parsed by log analysis tools are replaced by escape sequences. "
+"The escape sequence is a percentage sign followed by the ASCII code number "
+"of the replaced character in hex."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:72
+#: ../../admin/working-log-files/log-formats.en.rst:147
+msgid "``8``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:70
+msgid ""
+"``caun`` The username of the authenticated client. A hyphen (``-``) means "
+"that no authentication was required."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:81
+#: ../../admin/working-log-files/log-formats.en.rst:152
+msgid "``9``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:75
+msgid ""
+"``phr/pqsn`` The proxy hierarchy route; the route Traffic Server used to "
+"retrieve the object."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:79
+msgid ""
+"The proxy request server name; the name of the server that fulfilled the "
+"request. If the request was a cache hit, then this field contains a hyphen "
+"(``-``)."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:86
+#: ../../admin/working-log-files/log-formats.en.rst:157
+msgid "``10``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:84
+msgid ""
+"``psct`` The proxy response content type; the object content type taken "
+"from the Traffic Server response header."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:88
+msgid "The following figure shows a sample log entry in a ``squid.log`` file."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:94
+msgid "Sample log entry in squid.log"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:97
+msgid "Squid log in XML"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:108
+msgid "Netscape Formats"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:111
+#: ../../admin/working-log-files/log-formats.en.rst:218
+msgid "Netscape Common"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:118
+msgid "``-`` This hyphen (``-``) is always present in Netscape log entries."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:122
+msgid ""
+"``caun`` The authenticated client username. A hyphen (``-``) means no "
+"authentication was required."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:127
+msgid ""
+"``cqtd`` The date and time of the client request, enclosed in brackets."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:131
+msgid "``cqtx`` The request line, enclosed in quotes."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:135
+msgid "``pssc`` The proxy response status code (HTTP reply code)."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:139
+msgid ""
+"``pscl`` The length of the Traffic Server response to the client in bytes."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:143
+#: ../../admin/working-log-files/log-formats.en.rst:240
+msgid "Netscape Extended"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:146
+msgid "``sssc`` The origin server response status code."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:150
+msgid ""
+"``sshl`` The server response transfer length; the body length in the origin "
+"server response to Traffic Server, in bytes."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:155
+msgid ""
+"``cqbl`` The client request transfer length; the body length in the client "
+"request to Traffic Server, in bytes."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:162
+msgid "``11``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:160
+msgid ""
+"``pqbl`` The proxy request transfer length; the body length in the Traffic "
+"Server request to the origin server."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:167
+msgid "``12``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:165
+msgid ""
+"``cqhl`` The client request header length; the header length in the client "
+"request to Traffic Server."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:172
+msgid "``13``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:170
+msgid ""
+"``pshl`` The proxy response header length; the header length in the Traffic "
+"Server response to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:177
+msgid "``14``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:175
+msgid ""
+"``pqhl`` The proxy request header length; the header length in Traffic "
+"Server request to the origin server."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:182
+msgid "``15``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:180
+msgid ""
+"``sshl`` The server response header length; the header length in the origin "
+"server response to Traffic Server."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:189
+msgid "``16``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:185
+msgid ""
+"``tts`` The time Traffic Server spent processing the client request; the "
+"number of seconds between the time that the client established the "
+"connection with Traffic Server and the time that Traffic Server sent the "
+"last byte of the response back to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:192
+#: ../../admin/working-log-files/log-formats.en.rst:263
+msgid "Netscape Extended2"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:197
+msgid "``17``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:195
+msgid ""
+"``phr`` The proxy hierarchy route; the route Traffic Server used to "
+"retrieve the object."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:203
+msgid "``18``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:200
+msgid ""
+"``cfsc`` The client finish status code: ``FIN`` if the client request "
+"completed successfully or ``INTR`` if the client request was interrupted."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:209
+msgid "``19``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:206
+msgid ""
+"``pfsc`` The proxy finish status code: ``FIN`` if the Traffic Server "
+"request to the origin server completed successfully or ``INTR`` if the "
+"request was interrupted."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:215
+msgid "``20``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:212
+msgid ""
+"``crc`` The cache result code; how the Traffic Server cache responded to "
+"the request: HIT, MISS, and so on. Cache result codes are described :ref:"
+"`here <squid-netscape-result-codes>`."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:220
+msgid ""
+"The following figure shows a sample log entry in a ``common.log`` file, the "
+"list following describes the fields of the format."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:227
+msgid "Sample log entry in common.log"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:230
+msgid "Netscape Common in XML"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:242
+msgid ""
+"The following figure shows a sample log entry in an ``extended.log`` file."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:249
+msgid "sample log entry in extended.log"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:252
+#: ../../admin/working-log-files/log-formats.en.rst:275
+msgid "Netscape Extended in XML"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:265
+msgid ""
+"The following figure shows a sample log entry in an ``extended2.log`` file."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:272
+msgid "sample log entry in extended2.log"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:288
+msgid "Squid- and Netscape-format: Cache Result Codes"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:290
+msgid ""
+"The following table describes the cache result codes in Squid and Netscape "
+"log files."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:295
+msgid "``TCP_HIT``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:294
+msgid ""
+"A valid copy of the requested object was in the cache and Traffic Server "
+"sent the object to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:300
+msgid "``TCP_MISS``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:298
+msgid ""
+"The requested object was not in cache, so Traffic Server retrieved the "
+"object from the origin server (or a parent proxy) and sent it to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:306
+msgid "``TCP_REFRESH_HIT``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:303
+msgid ""
+"The object was in the cache, but it was stale. Traffic Server made an ``if-"
+"modified-since`` request to the origin server and the origin server sent a "
+"``304`` not-modified response. Traffic Server sent the cached object to the "
+"client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:312
+msgid "``TCP_REF_FAIL_HIT``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:309
+msgid ""
+"The object was in the cache but was stale. Traffic Server made an ``if-"
+"modified-since`` request to the origin server but the server did not "
+"respond. Traffic Server sent the cached object to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:318
+msgid "``TCP_REFRESH_MISS``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:315
+msgid ""
+"The object was in the cache but was stale. Traffic Server made an ``if-"
+"modified-since`` request to the origin server and the server returned a new "
+"object. Traffic Server served the new object to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:324
+msgid "``TCP_CLIENT_REFRESH``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:321
+msgid ""
+"The client issued a request with a ``no-cache`` header. Traffic Server "
+"obtained the requested object from the origin server and sent a copy to the "
+"client. Traffic Server deleted the previous copy of the object from cache."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:331
+msgid "``TCP_IMS_HIT``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:327
+msgid ""
+"The client issued an ``if-modified-since`` request and the object was in "
+"cache & fresher than the IMS date, **or** an ``if-modified-since`` request "
+"to the origin server revealed the cached object was fresh. Traffic Server "
+"served the cached object to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:338
+msgid "``TCP_IMS_MISS``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:334
+msgid ""
+"The client issued an ``if-modified-since request``, and the object was "
+"either not in cache or was stale in cache. Traffic Server sent an ``if-"
+"modified-since request`` to the origin server and received the new object. "
+"Traffic Server sent the updated object to the client."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:342
+msgid "``TCP_SWAPFAIL``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:341
+msgid ""
+"The object was in the cache but could not be accessed. The client did not "
+"receive the object."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:345
+msgid "``ERR_CLIENT_ABORT``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:345
+msgid "The client disconnected before the complete object was sent."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:348
+msgid "``ERR_CONNECT_FAIL``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:348
+msgid "Traffic Server could not reach the origin server."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:352
+msgid "``ERR_DNS_FAIL``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:351
+msgid ""
+"The Domain Name Server (DNS) could not resolve the origin server name, or "
+"no DNS could be reached."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:356
+msgid "``ERR_INVALID_REQ``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:355
+msgid ""
+"The client HTTP request was invalid. (Traffic Server forwards requests with "
+"unknown methods to the origin server.)"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:360
+msgid "``ERR_READ_TIMEOUT``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:359
+msgid ""
+"The origin server did not respond to Traffic Server's request within the "
+"timeout interval."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:363
+msgid "``ERR_PROXY_DENIED``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:363
+msgid "Client service was denied."
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:368
+msgid "``ERR_UNKNOWN``"
+msgstr ""
+
+#: ../../admin/working-log-files/log-formats.en.rst:366
+msgid ""
+"The client connected, but subsequently disconnected without sending a "
+"request."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/cache-api.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-api.en.po
new file mode 100644
index 00000000..57605b71
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-api.en.po
@@ -0,0 +1,63 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/cache-api.en.rst:22
+msgid "Cache Related API functions"
+msgstr ""
+
+#: ../../arch/cache/cache-api.en.rst:26
+msgid ""
+"Set a *flag* that marks a request as cacheable. This is a positive override "
+"only, setting *flag* to 0 restores the default behavior, it does not force "
+"the request to be uncacheable."
+msgstr ""
+
+#: ../../arch/cache/cache-api.en.rst:30
+msgid ""
+"Set the cache key for the transaction *txnp* as the string pointed at by "
+"*url* of *length* characters. It need not be ``null`` terminated. This "
+"should be called from ``TS_HTTP_READ_REQUEST_HDR_HOOK`` which is before "
+"cache lookup but late enough that the HTTP request header is available."
+msgstr ""
+
+#: ../../arch/cache/cache-api.en.rst:34
+msgid "Cache Internals"
+msgstr ""
+
+#: ../../arch/cache/cache-api.en.rst:38
+msgid ""
+"A preprocessor macro which computes the maximum size of a fragment based on "
+"the value of *big*. This is computed as if the argument where the value of "
+"the *big* field in a struct :cpp:class:`Dir`."
+msgstr ""
+
+#: ../../arch/cache/cache-api.en.rst:42
+msgid ""
+"A preprocessor macro which computes the block size multiplier for a struct :"
+"cpp:class:`Dir` where *big* is the *big* field value."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/cache-appendix.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-appendix.en.po
new file mode 100644
index 00000000..ea7092a5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-appendix.en.po
@@ -0,0 +1,253 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/cache-appendix.en.rst:21
+msgid "Cache Tools"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:23
+msgid "Tools and techniques for cache monitoring and inspection."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:25
+msgid ":ref:`The cache inspector <inspecting-the-cache>`."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:28
+msgid "Topics to be done"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:30
+msgid "Resident alternates"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:31
+msgid "Object refresh"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:34
+msgid "Cache Consistency"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:36
+msgid ""
+"The cache is completely consistent, up to and including kicking the power "
+"cord out, if the write buffer on consumer disk drives is disabled. You need "
+"to use::"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:40
+msgid ""
+"The cache validates that all the data for the document is available and "
+"will silently mark a partial document as a \"miss\" on read. There is no "
+"\"gentle\" shutdown for traffic server, you just kill the process, so the "
+"\"recovery\" code (fsck) is run every time traffic server starts up."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:42
+msgid ""
+"On startup the two versions of the index are checked, and the last valid "
+"one is read into memory. Then traffic server moves forward from the last "
+"snapped write cursor and reads all the fragments written to disk, and "
+"updates the directory (as in a log-based file system). It stops reading at "
+"the write before the last valid write header it sees (as a write is not "
+"necessarily atomic because of sector reordering). Then the new updated "
+"index is written to the invalid version (in case of a crash during startup) "
+"and the system starts."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:47
+msgid "Volume Tagging"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:49
+msgid ""
+"Currently cache volumes are allocated somewhat arbitrarily from storage "
+"elements. `This enhancement <https://issues.apache.org/jira/browse/"
+"TS-1728>`__ allows the :file:`storage.config` file to assign storage units "
+"to specific volumes although the volumes must still be listed in :file:"
+"`volume.config` in general and in particular to map domains to specific "
+"volumes. A primary use case for this is to be able to map specific types of "
+"content to different storage elements. This could to have different storage "
+"devices for the content (SSD vs. rotational)."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:53
+msgid "Version Upgrade"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:55
+msgid ""
+"It is currently the case that any change to the cache format will clear the "
+"cache. This is an issue when upgrading the |TS| version and should be kept "
+"in mind."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:61
+msgid "Controlling the cache key"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:63
+msgid ""
+"The cache key is by default the URL of the request. There are two possible "
+"choices, the original (\"pristine\") URL and the remapped URL. Which of "
+"these is used is determined by the configuration value  :ts:cv:`proxy."
+"config.url_remap.pristine_host_hdr`."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:65
+msgid ""
+"This is an ``INT`` value. If set to ``0`` (disabled) then the remapped URL "
+"is used, and if it is not ``0`` (enabled) then the original URL is used. "
+"This setting also controls the value of the ``HOST`` header that is placed "
+"in the request sent to the origin server, using hostname from the original "
+"URL if non-``0`` and the host name from the remapped URL if ``0``. It has "
+"no other effects."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:67
+msgid ""
+"For caching, this setting is irrelevant if no remapping is done or there is "
+"a one to one mapping between the original and remapped URLs."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:69
+msgid ""
+"It becomes significant if multiple original URLs are mapped to the same "
+"remapped URL. If pristine headers are enabled requests to different "
+"original URLs will be stored as distinct objects in the cache. If disabled "
+"the remapped URL will be used and there may be collisions. This is bad if "
+"the contents different but quite useful if they are the same (e.g., the "
+"original URLs are just aliases for the same underlying server)."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:71
+msgid ""
+"This is also an issue if a remapping is changed because it is effectively a "
+"time axis version of the previous case. If an original URL is remapped to a "
+"different server address then the setting determines if existing cached "
+"objects will be served for new requests (enabled) or not (disabled). "
+"Similarly if the original URL mapped to a particular URL is changed then "
+"cached objects from the initial original URL will be served from the "
+"updated original URL if pristine headers is disabled."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:77
+msgid ""
+"A plugin that changes the cache key *must* do so consistently for both "
+"cache hit and cache miss requests because two different requests that map "
+"to the same cache key will be considered equivalent by the cache. Use of "
+"the URL directly provides this and so must any substitute. This is entirely "
+"the responsibility of the plugin, there is no way for the |TS| core to "
+"detect such an occurrence."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:81
+msgid ""
+"It is a requirement that the string be syntactically a URL but otherwise it "
+"is completely arbitrary and need not have any path. For instance if the "
+"company Network Geographics wanted to store certain content under its own "
+"cache key, using a document GUID as part of the key, it could use a cache "
+"key like ::"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:85
+msgid ""
+"The scheme ``ngeo`` was picked because it is *not* a valid URL scheme and "
+"so will not collide with any valid URL."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:87
+msgid ""
+"This can be useful if the URL encodes both important and unimportant data. "
+"Instead of storing potentially identical content under different URLs "
+"(because they differ on the unimportant parts) a url containing only the "
+"important parts could be created and used."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:89
+msgid ""
+"For example, suppose the URL for Network Geographics content encoded both "
+"the document GUID and a referral key. ::"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:93
+msgid ""
+"We don't want to the same content for every possible referrer. Instead we "
+"could use a plugin to convert this to the previous example and requests "
+"that differed only in the referrer key would all reference the same cache "
+"entry. Note that we would also map ::"
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:97
+msgid ""
+"to the same cache key. This can be handy for \"sharing\" content between "
+"servers when that content is identical. Note also the plugin can change the "
+"cache key or not depending on any data in the request header, for instance "
+"not changing the cache key if the request is not in the ``doc`` directory. "
+"If distinguishing servers is important that can easily be pulled from the "
+"request URL and used in the synthetic cache key. The implementor is free to "
+"extract all relevant elements for use in the cache key."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:99
+msgid ""
+"While there is explicit no requirement that the synthetic cache key be "
+"based on the HTTP request header, in practice it is generally necessary due "
+"to the consistency requirement. Because cache lookup happens before "
+"attempting to connect to the origin server no data from the HTTP response "
+"header is available, leaving only the request header. The most common case "
+"is the one described above where the goal is to elide elements of the URL "
+"that do not affect the content to minimize cache footprint and improve "
+"cache hit rates."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:73
+msgid ""
+"These collisions are not of themselves good or bad. An administrator needs "
+"to decide which is appropriate for their situation and set the value "
+"correspondingly."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:75
+msgid ""
+"If a greater degree of control is desired a plugin must be used to invoke "
+"the API call :c:func:`TSCacheUrlSet()` to provide a specific cache key.  "
+"The :c:func:`TSCacheUrlSet()` API can be called as early as "
+"``TS_HTTP_READ_REQUEST_HDR_HOOK``, but no later than "
+"``TS_HTTP_POST_REMAP_HOOK``. It can be called only once per transaction; "
+"calling it multiple times has no additional effect."
+msgstr ""
+
+#: ../../arch/cache/cache-appendix.en.rst:79
+msgid ""
+"If :c:func:`TSHttpTxnCacheLookupUrlGet()` is called after new cache url set "
+"by :c:func:`TSCacheUrlSet()`, it should use a URL location created by :c:"
+"func:`TSUrlCreate()` as its 3rd input parameter instead of getting url_loc "
+"from client request."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/cache-arch.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-arch.en.po
new file mode 100644
index 00000000..7a1a3094
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-arch.en.po
@@ -0,0 +1,2106 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/cache-arch.en.rst:19
+msgid "Cache Architecture"
+msgstr "キャッシュアーキテクチャ"
+
+#: ../../arch/cache/cache-arch.en.rst:24
+msgid "Introduction"
+msgstr "導入"
+
+#: ../../arch/cache/cache-arch.en.rst:31
+msgid ""
+"The purpose of this document is to describe the basic structure and "
+"implementation details of the |TS| cache. Configuration of the cache will "
+"be discussed only to the extent needed to understand the internal "
+"mechanisms. This document will be useful primarily to |TS| developers "
+"working on the |TS| codebase or plugins for |TS|. It is assumed the reader "
+"is already familiar with the :ref:`admin-guide` and specifically with :ref:"
+"`http-proxy-caching` and :ref:`configuring-the-cache` along with the "
+"associated configuration files and values."
+msgstr ""
+"このドキュメントの目的は、 |TS| キャッシュの基本構造と実装の詳細について記述"
+"することです。キャッシュの設定については、内部の仕組みを理解するのに必要な範"
+"囲でのみ記述します。このドキュメントは、主に |TS| のコードや |TS| のプラグイ"
+"ンに関わる |TS| デベロッパーにとって有用となるでしょう。読者は、 :ref:"
+"`admin-guide` と、特に :ref:`http-proxy-caching` と :ref:`configuring-the-"
+"cache` 、加えて設定ファイルや設定値に詳しいことを前提とします。"
+
+#: ../../arch/cache/cache-arch.en.rst:37
+msgid ""
+"Unfortunately the internal terminology is not particularly consistent so "
+"this document will frequently use terms in different ways than they are "
+"used in the code in an attempt to create some consistency."
+msgstr ""
+"不幸なことに、内部用語は一貫していません。そのためこのドキュメントにおいては"
+"一貫性を得るためにコード内で使われるものとは違った方法で頻繁に用語を使用しま"
+"す。"
+
+#: ../../arch/cache/cache-arch.en.rst:41
+msgid "Cache Layout"
+msgstr "キャッシュレイアウト"
+
+#: ../../arch/cache/cache-arch.en.rst:48
+msgid "Cache storage"
+msgstr "キャッシュストレージ"
+
+#: ../../arch/cache/cache-arch.en.rst:56
+msgid "Two cache spans"
+msgstr "二つのキャッシュスパン"
+
+#: ../../arch/cache/cache-arch.en.rst:66
+msgid "If the cache volumes for the example cache spans were defined as"
+msgstr ""
+"もし、例としてキャッシュスパンのキャッシュボリュームが以下のように定義されて"
+"いたら"
+
+#: ../../arch/cache/cache-arch.en.rst:71
+msgid "then the actual layout would look like"
+msgstr "実際のレイアウトはこのようになるでしょう。"
+
+#: ../../arch/cache/cache-arch.en.rst:83
+msgid ""
+"The layout and structure of the cache spans, the cache volumes, and the "
+"cache stripes that compose them are derived entirely from the :file:"
+"`storage.config` and :file:`cache.config` and is recomputed from scratch "
+"when the :process:`traffic_server` is started. Therefore any change to "
+"those files can (and almost always will) invalidate the existing cache in "
+"its entirety."
+msgstr ""
+"キャッシュスパン、キャッシュボリューム、そしてそれらを構成するキャッシュスト"
+"ライプのレイアウトと構造は、全て :file:`storage.config` と:file:`cache."
+"config` から取得され、 :process:`traffic_server` が開始された時にはじめから"
+"再計算されます。従って、これらのファイルへの任意の変更は(ほとんど常に)それら"
+"全ての既存のキャッシュを無効化します。"
+
+#: ../../arch/cache/cache-arch.en.rst:89
+msgid "Stripe Structure"
+msgstr "ストライプ構造"
+
+#: ../../arch/cache/cache-arch.en.rst:91
+msgid ""
+"|TS| treats the storage associated with a cache stripe as an "
+"undifferentiated span of bytes. Internally each stripe is treated almost "
+"entirely independently. The data structures described in this section are "
+"duplicated for each stripe. Internally the term \"volume\" is used for "
+"these stripes and implemented primarily in :cpp:class:`Vol`. What a user "
+"thinks of as a volume (what this document calls a \"cache volume\") is "
+"represented by :cpp:class:`CacheVol`."
+msgstr ""
+"|TS| は、キャッシュストライプと結び付けられたストレージを区別されないバイト"
+"列のスパンとして扱います。内部的に各ストライプはほぼ完全に独立して扱われま"
+"す。この節で記述されるデータ構造は、各ストライプに複製されます。内部的に "
+"\"ボリューム\" という単語はこれらのストライプに使用され、主に:cpp:class:"
+"`Vol` で実装されています。ユーザが思うボリューム(このドキュメントでは "
+"\"キャッシュボリューム\")は、 :cpp:class:`CacheVol` で表現されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:98
+msgid ""
+"Stripe assignment must be done before working with an object because the "
+"directory is local to the stripe. Any cached objects for which the stripe "
+"assignment is changed are effectively lost as their directory data will not "
+"be found in the new stripe."
+msgstr ""
+"ディレクトリはストライプに配置されるため、ストライプ割当はオブジェクトを扱う"
+"ような動作をする前に行われなければなりません。ストライプ割当が変更された"
+"キャッシュオブジェクトは、新しいストライプ上で発見されないであろうディレクト"
+"リデータとして事実上消失します。"
+
+#: ../../arch/cache/cache-arch.en.rst:106
+msgid "Cache Directory"
+msgstr "キャッシュディレクトリ"
+
+#: ../../arch/cache/cache-arch.en.rst:122
+msgid ""
+"The directory is used as a memory resident structure which means a "
+"directory entry is as small as possible (currently 10 bytes). This forces "
+"some compromises on the data that can be stored there. On the other hand "
+"this means that most cache misses do not require disk I/O which has a large "
+"performance benefit."
+msgstr ""
+"ディレクトリはメモリに常住する構成で使用されるので、ディレクトリエントリは可"
+"能な限り小さくなっています。（現在は 10 バイト）このことは、そこに保存できる"
+"データに幾つかの制約を強要します。一方でほとんどのキャッシュミスはディスク "
+"I/O を要求せず、大きな性能面の恩恵を得ることになります。"
+
+#: ../../arch/cache/cache-arch.en.rst:126
+msgid ""
+"An additional point is the directory is always fully sized. Once a stripe "
+"is initialized the directory size is fixed and never changed. This size is "
+"related (roughly linearly) to the size of the stripe. It is for this reason "
+"the memory footprint of |TS| depends strongly on the size of the disk "
+"cache. Because the directory size does not change, neither does this memory "
+"requirement so |TS| does not consume more memory as more content is stored "
+"in the cache. If there is enough memory to run |TS| with an empty cache "
+"there is enough to run it with a full cache."
+msgstr ""
+"加えて、ディレクトリは常に最大のサイズになります。ストライプが一旦初期化され"
+"ると、ディレクトリサイズは固定されて二度と変更されません。このサイズは、スト"
+"ライプのサイズに（大雑把に、線形に）関係します。この理由は |TS| のメモリ使用"
+"量は、ディスクキャッシュのサイズに強く依存することにあります。ディレクトリサ"
+"イズは変わらずメモリ要件もまた変わらないため、 |TS| がキャッシュに保存された"
+"コンテンツより多いメモリを消費することはありません。キャッシュが空の状態で |"
+"TS| を動作させるのに十分なメモリがあるなら、キャッシュが満ちた状態で動作する"
+"のに十分です。"
+
+#: ../../arch/cache/cache-arch.en.rst:193
+msgid "Storage Layout"
+msgstr "ストレージレイアウト"
+
+#: ../../arch/cache/cache-arch.en.rst:195
+msgid ""
+"The storage layout is the stripe metadata followed by cached content. The "
+"metadata consists of three parts - the stripe header, the directory, and "
+"the stripe footer. The metadata is stored twice. The header and the footer "
+"are instances of :cpp:class:`VolHeaderFooter`. This is a stub structure "
+"which can have a trailing variable sized array. This array is used as the "
+"segment free list roots in the directory. Each contains the segment index "
+"of the first element of the free list for the segment. The footer is a copy "
+"of the header without the segment free lists. This makes the size of the "
+"header dependent on the directory but not that of the footer."
+msgstr ""
+"ストレージレイアウトは、ストライプメタデータの後ろにキャッシュされたコンテン"
+"ツが続きます。メタデータは三つの要素、ストライプヘッダ、ディレクトリ、ストラ"
+"イプフッタで構成されます。メタデータは二度保存されます。ヘッダとフッタは :"
+"cpp:class:`VolHeaderFooter` のインスタンスです。これは可変長配列を末尾に持つ"
+"ことができるスタブ構造体です。この配列はディレクトリのルートのセグメントフ"
+"リーリストとして使用されます。各要素はセグメントのフリーリストの、最初の要素"
+"のセグメントインデックスを持ちます。フッタは、セグメントフリーリストを伴わな"
+"いヘッダのコピーです。ヘッダのサイズはディレクトリに依存しますが、フッタは依"
+"存しません。"
+
+#: ../../arch/cache/cache-arch.en.rst:205
+msgid "Each stripe has several values that describe its basic layout."
+msgstr "各ストライプは、基本的なレイアウトを表現する幾つかの値を持ちます。"
+
+#: ../../arch/cache/cache-arch.en.rst:209
+msgid "skip"
+msgstr "skip"
+
+#: ../../arch/cache/cache-arch.en.rst:208
+msgid ""
+"The start of stripe data. This represents either space reserved at the "
+"start of a physical device to avoid problems with the host operating "
+"system, or an offset representing use of space in the cache span by other "
+"stripes."
+msgstr ""
+"ストライプデータの開始地点です。これはホストオペレーティングシステムによる問"
+"題を回避するために物理デバイスの始点に予約されたスペース、もしくは他のストラ"
+"イプにキャッシュスパンのスペースが使用されていることを表すオフセットのどちら"
+"かを表します。"
+
+#: ../../arch/cache/cache-arch.en.rst:212
+msgid "start"
+msgstr "start"
+
+#: ../../arch/cache/cache-arch.en.rst:212
+msgid "The offset for the start of the content, after the stripe metadata."
+msgstr "ストライプメタデータの後からの、コンテンツの開始地点を示すオフセット"
+
+#: ../../arch/cache/cache-arch.en.rst:215
+msgid "length"
+msgstr "length"
+
+#: ../../arch/cache/cache-arch.en.rst:215
+msgid "Total number of bytes in the stripe. :cpp:member:`Vol::len`."
+msgstr "ストライプのバイトの合計値。 :cpp:member:`Vol::len` "
+
+#: ../../arch/cache/cache-arch.en.rst:218
+msgid "data length"
+msgstr "data length"
+
+#: ../../arch/cache/cache-arch.en.rst:218
+msgid ""
+"Total number of blocks in the stripe available for content storage. :cpp:"
+"member:`Vol::data_blocks`."
+msgstr ""
+"コンテンツストレージとして使用可能なストライプのブロックの合計値。:cpp:"
+"member:`Vol::data_blocks` "
+
+#: ../../arch/cache/cache-arch.en.rst:220
+msgid ""
+"Great care must be taken with sizes and lengths in the cache code because "
+"there are at least three different metrics (bytes, cache blocks, store "
+"blocks) used in various places."
+msgstr ""
+"キャッシュコードの size や length を扱う場合、特に注意しなければなりません。"
+"これらは様々な箇所で、少なくとも三つの違うメトリクス(バイト、キャッシュブ"
+"ロック、ストアブロック)が使われているからです。"
+
+#: ../../arch/cache/cache-arch.en.rst:222
+msgid ""
+"The total size of the directory (the number of entries) is computed by "
+"taking the size of the stripe and dividing by the average object size. The "
+"directory always consumes this amount of memory which has the effect that "
+"if cache size is increased so is the memory requirement for |TS|. The "
+"average object size defaults to 8000 bytes but can be configured using :ts:"
+"cv:`proxy.config.cache.min_average_object_size`. Increasing the average "
+"object size will reduce the memory footprint of the directory at the "
+"expense of reducing the number of distinct objects that can be stored in "
+"the cache [#]_."
+msgstr ""
+"ディレクトリの合計サイズ（エントリ数）は、ストライプのサイズを取得して平均オ"
+"ブジェクトサイズで割ることで計算されます。もしキャッシュサイズが |TS| のメモ"
+"リ要件により増加する場合、ディレクトリは常に効率的なメモリ量を消費します。平"
+"均オブジェクトサイズはデフォルトでは 8000 バイトですが、 :ts:cv:`proxy."
+"config.cache.min_average_object_size` で設定できます。平均オブジェクトサイズ"
+"を増加させることにより、キャッシュに保存するオブジェクト数を減らすことと引き"
+"換えに、ディレクトリのメモリ使用量を減らすことができます。 [#]_"
+
+#: ../../arch/cache/cache-arch.en.rst:232
+msgid ""
+"The content area stores the actual objects and is used as a circular buffer "
+"where new objects overwrite the least recently cached objects. The location "
+"in a stripe where new cache data is written is called the *write cursor*. "
+"This means that objects can be de facto evicted from cache even if they "
+"have not expired if the data is overwritten by the write cursor. If an "
+"object is overwritten this is not detected at that time and the directory "
+"is not updated. Instead it will be noted if the object is accessed in the "
+"future and the disk read of the fragment fails."
+msgstr ""
+"コンテンツエリアは実際のオブジェクトを保存し、最もキャッシュされてから時間が"
+"経過したオブジェクトを新たなドキュメントで上書きする循環バッファとして使用さ"
+"れます。ストライプの新たなキャッシュデータの位置は、 *書込みカーソル* と呼ば"
+"れます。これはデータが書込みカーソルによって上書きされる場合、たとえ失効して"
+"いなくても、オブジェクトは事実上キャッシュから立ち退かせられることを意味しま"
+"す。もしオブジェクトが上書きされる場合、検出されずディレクトリは更新されませ"
+"ん。代わりに、もしオブジェクトが将来アクセスされてフラグメントのディスク読込"
+"みが失敗する場合、警告されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:241
+msgid "The write cursor and documents in the cache."
+msgstr "書込みカーソルとキャッシュ内のドキュメント"
+
+#: ../../arch/cache/cache-arch.en.rst:243
+msgid "Cache data on disk is never updated."
+msgstr "ディスク上のキャッシュデータは永遠に更新されません。"
+
+#: ../../arch/cache/cache-arch.en.rst:245
+msgid ""
+"This is a key thing to keep in mind. What appear to be updates (such as "
+"doing a refresh on stale content and getting back a 304) are actually new "
+"copies of data being written at the write cursor. The originals are left as "
+"\"dead\" space which will be consumed when the write cursor arrives at that "
+"disk location. Once the stripe directory is updated (in memory!) the "
+"original fragment in the cache is effectively destroyed. This is the "
+"general space management techinque used in other cases as well. If an "
+"object needs to removed from cache, only the directory needs to be changed. "
+"No other work (and *particularly* no disk I/O) needs to be done."
+msgstr ""
+"これは、心に留めておくべき重要な事です。更新されるように見えるもの（新鮮では"
+"なくなったコンテンツをリフレッシュし、 304 を返すような）は、実際には書込み"
+"カーソルで書き込まれているデータの新しいコピーです。オリジナルは書込みカーソ"
+"ルがディスクのその位置に到着する時に消去される、\"死んだ\" スペースとして残"
+"されます。一旦ストライプディレクトリが（メモリ内で！）更新されると、キャッ"
+"シュ上のオリジナルのフラグメントは事実上破棄されます。これは他のケースでも同"
+"様に用いられる、一般的なスペース管理技術です。もしオブジェクトをキャッシュか"
+"ら削除する必要がある場合、ディレクトリの変更のみ必要があります。他の動作（ *"
+"特に* ディスク I/O も）を行う必要はありません。"
+
+#: ../../arch/cache/cache-arch.en.rst:253
+msgid "Object Structure"
+msgstr "オブジェクトの構造"
+
+#: ../../arch/cache/cache-arch.en.rst:255
+msgid ""
+"Objects are stored as two types of data, metadata and content data. "
+"Metadata is all the data about the object and the content and includes the "
+"HTTP headers. The content data is the content of the object, the octet "
+"stream delivered to the client as the object."
+msgstr ""
+"オブジェクトは二つのデータのタイプ、メタデータとコンテンツデータとして保存"
+"されます。メタデータは、 HTTP ヘッダを含むオブジェクトとコンテンツに関する"
+"全てのデータです。コンテンツデータはオブジェクトのコンテンツで、オブジェクトと"
+"してクライアントに配信されるオクテットストリームです。"
+
+#: ../../arch/cache/cache-arch.en.rst:259
+msgid ""
+"Objects are rooted in a :cpp:class:`Doc` structure stored in the cache. :"
+"cpp:class:`Doc` serves as the header data for a fragment and is contained "
+"at the start of every fragment. The first fragment for an object is termed "
+"the \"first ``Doc``\" and always contains the object metadata. Any "
+"operation on the object will read this fragment first. The fragment is "
+"located by converting the cache key for the object to a cache ID and then "
+"doing a lookup for a directory entry with that key. The directory entry has "
+"the offset and approximate size of the first fragment which is then read "
+"from the disk. This fragment will contain the request header and response "
+"along with overall object properties (such as content length)."
+msgstr ""
+"オブジェクトは、キャッシュに格納される :cpp:class:`Doc` 構造体をルートと"
+"します。:cpp:class:`Doc` はフラグメントのヘッダデータとして提供し、各フラグ"
+"メントの先頭に置かれます。これは \" first ``Doc``\" と呼ばれ、常にオブジェクト"
+"メタデータに含まれます。オブジェクトの任意の操作は、最初にこのフラグメントを"
+"読み込みます。そのフラグメントはオブジェクトのキャッシュキーをキャッシュ ID に"
+"変換することにより発見され、その後そのキーを使ってディレクトリエントリが検索"
+"されます。ディレクトリエントリは、その時ディスクから読み込まれる先頭の"
+"フラグメントのオフセットとおおよそのサイズを持ちます。このフラグメントは、全て"
+"のオブジェクトのプロパティ（コンテンツ長のような）に加えて、リクエストヘッダ"
+"とレスポンスを持ちます。"
+
+#: ../../arch/cache/cache-arch.en.rst:269
+msgid ""
+"|TS| supports `varying content <http://www.w3.org/Protocols/rfc2616/rfc2616-"
+"sec14.html#sec14.44>`_ for objects. These are called *alternates*. All "
+"metadata for all alternates is stored in the first fragment including the "
+"set of alternates and the HTTP headers for them. This enables `alternate "
+"selection <http://trafficserver.apache.org/docs/trunk/sdk/http-hooks-and-"
+"transactions/http-alternate-selection.en.html>`_ to be done after the first "
+"``Doc`` is read from disk. An object that has more than one alternate will "
+"have the alternate content stored separately from the first fragment. For "
+"objects with only one alternate the content may or may not be in the same "
+"(first) fragment as the metadata. Each separate alternate content is "
+"allocated a directory entry and the key for that entry is stored in the "
+"first fragment metadata."
+msgstr ""
+"|TS| はオブジェクト用に `コンテンツ変換 <http://www.w3.org/Protocols/rfc2616"
+"/rfc2616-sec14.html#sec14.44>`_ をサポートします。これらを *代替* と呼びます。"
+"全ての代替の全メタデータは、代替のセットとそれらの HTTP ヘッダを含む先頭の"
+"フラグメントに格納されます。これは、 first ``Doc``がディスクから読込まれた"
+"後に、`代替セクション <http://trafficserver.apache.org/docs/trunk/sdk/http-"
+"hooks-and-transactions/http-alternate-selection.en.html>`_ が実行されて有効に"
+"なります。複数の代替を持つオブジェクトは、先頭のフラグメントとは別に"
+"保存された代替コンテンツを持ちます。一つの代替のみ持つオブジェクトは、"
+"コンテンツはメタデータと同じ（先頭の）フラグメントに置かれるかもしれないし、"
+"そうでもないかもしれません。個々の分離された代替コンテンツはディレクトリ"
+"エントリを割り当てられ、エントリのキーは先頭のフラグメントのメタデータに"
+"保存されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:278
+msgid ""
+"Prior to version 4.0.1 the header data was stored in the :cpp:class:"
+"`CacheHTTPInfoVector` class which was marshaled to a variable length area "
+"of the on disk image, followed by information about additional fragments if "
+"needed to store the object."
+msgstr ""
+"バージョン 4.0.1 以前は、ヘッダデータはディスクイメージの可変長領域をまとめる "
+":cpp:class:`CacheHTTPInfoVector` クラス内に保存され、オブジェクトを保存する"
+"必要がある場合、追加フラグメント情報がその後ろに続きます。"
+
+#: ../../arch/cache/cache-arch.en.rst:285
+msgid "``Doc`` layout 3.2.0"
+msgstr "3.2.0 の ``Doc`` レイアウト"
+
+#: ../../arch/cache/cache-arch.en.rst:287
+msgid ""
+"This had the problem that with only one fragment table it could not be "
+"reliable for objects with more than one alternate [#]_. Therefore the "
+"fragment data was moved from being a separate variable length section of "
+"the metadata to being directly incorporated in to the :cpp:class:"
+"`CacheHTTPInfoVector`, yielding a layout of the following form."
+msgstr ""
+"この方法では、一つのフラグメントテーブルのみでは複数の代替を持つオブジェクトに"
+"対しては信頼性を確保できない問題がありました。 [#]_ 従って、フラグメントデータ"
+"はメタデータ用に分離された可変長領域から :cpp:class:`CacheHTTPInfoVector` へ"
+"直接統合されるよう移動し、以下の形式のレイアウトに生まれ変わりました。"
+
+#: ../../arch/cache/cache-arch.en.rst:294
+msgid "``Doc`` layout 4.0.1"
+msgstr "4.0.1 の ``Doc`` レイアウト"
+
+#: ../../arch/cache/cache-arch.en.rst:296
+msgid ""
+"Each element in the vector contains for each alternate, in addition to the "
+"HTTP headers and the fragment table (if any), a cache key. This cache key "
+"identifies a directory entry that is referred to as the \"earliest ``Doc``"
+"\". This is the location where the content for the alternate begins."
+msgstr ""
+"ベクターの各要素は、各代替に加えて（もしあれば） HTTP ヘッダとフラグメント"
+"テーブル、キャッシュキーを含みます。このキャッシュキーは \"earliest "
+"``Doc`` \" として参照されるディレクトリエントリを特定します。これは代替の"
+"コンテンツの開始位置です。"
+
+#: ../../arch/cache/cache-arch.en.rst:300
+msgid ""
+"When the object is first cached, it will have a single alternate and that "
+"will be stored (if not too large) in first ``Doc``. This is termed a "
+"*resident alternate* in the code. This can only happen on the initial store "
+"of the object. If the metadata is updated (such as a ``304`` response to an "
+"``If-Modified-Since`` request) then unless the object is small, the object "
+"data will be left in the original fragment and a new fragment written as "
+"the first fragment, making the alternate non-resident. \"Small\" is defined "
+"as a length smaller than :ts:cv:`proxy.config.cache.alt_rewrite_max_size`."
+msgstr ""
+"オブジェクトが最初にキャッシュされる際、それは単一の代替を持ち、（大き"
+"すぎない場合は） first ``Doc`` に格納されます。これはコード中で *常駐代替* と"
+"呼ばれます。この処理はオブジェクトの最初の保存時にのみ発生できます。メタ"
+"データが更新される場合（``If-Modified-Since`` リクエストに対し、 ``304`` を"
+"返すなど)、オブジェクトが小さくなければ、オブジェクトデータはオリジナルの"
+"フラグメントに取り残され、新しいフラグメントが先頭のフラグメントとして書き"
+"込まれ、非常駐の代替を作成します。 :ts:cv:`proxy.config.cache."
+"alt_rewrite_max_size` より小さい長さを、 \"小さい\" と定義します。"
+
+#: ../../arch/cache/cache-arch.en.rst:308
+msgid ""
+"The :cpp:class:`CacheHTTPInfoVector` is stored only in the first ``Doc``. "
+"Subsequent ``Doc`` instances for the object, including the earliest "
+"``Doc``, should have an ``hlen`` of zero and if not, it is ignored."
+msgstr ""
+":cpp:class:`CacheHTTPInfoVector` は first ``Doc`` にのみ保存されます。"
+"earliest ``Doc`` を含む、 first ``Doc`` に続くオブジェクトの ``Doc`` インス"
+"タンスはゼロの ``hlen`` を持つはずであり、もしそうでないものは無視されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:311
+msgid ""
+"Large objects are split in to multiple fragments when written to the cache. "
+"This is indicated by a total document length that is longer than the "
+"content in first ``Doc`` or an earliest ``Doc``. In such a case a fragment "
+"offset table is stored. This contains the byte offset in the object content "
+"of the first byte of content data for each fragment past the first (as the "
+"offset for the first is always zero). This allows range requests to be "
+"serviced much more efficiently for large objects, as intermediate fragments "
+"that do not contain data in the range can be skipped. The last fragment in "
+"the sequence is detected by the fragment size and offset reaching the end "
+"of the total size of the object, there is no explicit end mark. Each "
+"fragment is computationally chained from the previous in that the cache key "
+"for fragment N is computed by::"
+msgstr ""
+"巨大なオブジェクトは、キャッシュに書き込まれる時に複数のフラグメントに分割され"
+"ます。これは、ドキュメント長の合計が first ``Doc`` もしくは earliest ``Doc`` "
+"のコンテンツより長いことを示します。このような場合には、フラグメントオフセット"
+"テーブルが保存されます。このテーブルは（オフセットが常にゼロであるような）"
+"先頭のフラグメントの次以降の各フラグメントのコンテンツデータの先頭バイト"
+"を指し示す、オブジェクトコンテンツ全体の中でのバイトオフセットを含みます。"
+"これは範囲内のデータを含まない、中間にあるフラグメントをスキップ可能にする"
+"ことで、巨大なオブジェクトを非常に効率的に提供するためのレンジリクエストを"
+"可能にします。シーケンスの最後のフラグメントは、明示的なエンドマーク無しに"
+"フラグメントサイズとオフセットがオブジェクトの合計サイズの最後に到達することに"
+"より検出されます。各フラグメントは、計算的に前のものと繋がっています。"
+"フラグメント N のキャッシュキーは、以下により計算されます::"
+
+#: ../../arch/cache/cache-arch.en.rst:322
+msgid ""
+"where ``next_key`` is a global function that deterministically computes a "
+"new cache key from an existing cache key."
+msgstr ""
+"``next_key`` は既存のキャッシュキーから新しいキャッシュキーを決定論的に計算"
+"するグローバル関数です。"
+
+#: ../../arch/cache/cache-arch.en.rst:324
+msgid ""
+"Objects with multiple fragments are laid out such that the data fragments "
+"(including the earliest ``Doc``) are written first and the first ``Doc`` is "
+"written last. When read from disk, both the first and earliest ``Doc`` are "
+"validated (tested to ensure that they haven't been overwritten by the write "
+"cursor) to verify that the entire document is present on disk (as they "
+"bookend the other fragments - the write cursor cannot overwrite them "
+"without overwriting at leastone of the verified ``Doc`` instances). Note "
+"that while the fragments of a single object are ordered they are not "
+"necessarily contiguous as data from different objects are interleaved as "
+"the data arrives in |TS|."
+msgstr ""
+"複数のフラグメントを伴うオブジェクトは、（earliest ``Doc`` を含む）データ"
+"フラグメントが先頭に書き込まれ、 first ``Doc`` が末尾に書き込まれる形で"
+"レイアウトされます。ディスクから読み込まれる時、先頭と earliest ``Doc`` の"
+"両方は、ドキュメント全部がディスクに存在することを確認するため検証されます。"
+"（それらが書込みカーソルにより上書きされていないことを確認することで試験"
+"されます） （これらの ``Doc`` は他のフラグメントのブックエンドとなります。"
+"書込みカーソルは、検証された ``Doc`` インスタンスの少なくとも一つの上書き"
+"無しに、ドキュメントを上書き出来ません）単一のオブジェクトのフラグメントは、 "
+"|TS| に届いたデータとして異なるオブジェクトのデータが挟み込められてしまう"
+"ため、必然的に隣接しないように並べられていることに注意してください。"
+
+#: ../../arch/cache/cache-arch.en.rst:334
+msgid "Multi-alternate and multi-fragment object storage"
+msgstr "オブジェクトストレージの、複数の代替と複数のフラグメント"
+
+#: ../../arch/cache/cache-arch.en.rst:338
+msgid ""
+"Documents which are \"pinned\" into the cache must not be overwritten so "
+"they are \"evacuated\" from in front of the write cursor. Each fragment is "
+"read and rewritten. There is a special lookup mechanism for objects that "
+"are being evacuated so that they can be found in memory rather than the "
+"potentially unreliable disk regions. The cache scans ahead of the write "
+"cursor to discover pinned objects as there is a dead zone immediately "
+"before the write cursor from which data cannot be evacuated. Evacuated data "
+"is read from disk and placed in the write queue and written as its turn "
+"comes up."
+msgstr ""
+"キャッシュへ \"ピン留め\" されたドキュメントは上書きされてはならず、そのため"
+"それらは書込みカーソルの前に \"退避\" させられます。各フラグメントは読み込ま"
+"れ、再書込みされます。潜在的に信頼性の低いディスク領域ではなくメモリ上で検出"
+"できるよう、退避されるオブジェクトの特殊な検出メカニズムが存在します。データを"
+"退避させることができない書込みカーソル直前のデットゾーンがあるため、ピン留め"
+"されたオブジェクトを発見するためにキャッシュは書込みカーソルより先にスキャン"
+"します。退避されたデータはディスクから読み込まれて書込みキューに置かれ、出番が"
+"来ると書き込まれます。"
+
+#: ../../arch/cache/cache-arch.en.rst:344
+msgid ""
+"It appears that objects can only be pinned via the :file:`cache.config` "
+"file and if the :ts:cv:`proxy.config.cache.permit.pinning` is set to non-"
+"zero (it is zero by default). Objects which are in use when the write "
+"cursor is near use the same underlying evacuation mechanism but are handled "
+"automatically and not via the explicit ``pinned`` bit in :cpp:class:`Dir`."
+msgstr ""
+"オブジェクトは :file:`cache.config` ファイルと、 :ts:cv:`proxy.config.cache."
+"permit.pinning` にゼロでない値（デフォルトではゼロ）を設定した場合のみピン留め"
+"できます。書込みカーソルが接近している際に使用中のオブジェクトは、基本的な退避"
+"メカニズムを同様に使用しますが、 :cpp:class:`Dir` の明示的な ``ピン留め`` "
+"無しに自動的に扱われます。"
+
+#: ../../arch/cache/cache-arch.en.rst:349
+msgid ""
+"It could, under certain circumstances, be accurate for none of the "
+"alternates."
+msgstr "それは、ある状況下では代替が正確になりません。"
+
+#: ../../arch/cache/cache-arch.en.rst:352
+msgid "Additional Notes"
+msgstr "追加情報"
+
+#: ../../arch/cache/cache-arch.en.rst:354
+msgid "Some general observations on the data structures."
+msgstr "データ構造のいくつかの概説。"
+
+#: ../../arch/cache/cache-arch.en.rst:357
+msgid "Cyclone buffer"
+msgstr "循環バッファ"
+
+#: ../../arch/cache/cache-arch.en.rst:359
+msgid ""
+"Because the cache is a cyclone cache objects are not preserved for an "
+"indefinite time. Even if the object is not stale it can be overwritten as "
+"the cache cycles through its volume. Marking an object as ``pinned`` "
+"preserves the object through the passage of the write cursor but this is "
+"done by copying the object across the gap, in effect re-storing it in the "
+"cache. Pinning large objects or a large number objects can lead to a "
+"excessive disk activity. The original purpose of pinning seems to have been "
+"for small, frequently used objects explicitly marked by the administrator."
+msgstr ""
+"キャッシュは循環するため、キャッシュオブジェクトは無期限の保存はされません。"
+"たとえオブジェクトが新鮮であっても、ボリュームのキャッシュサイクルとして上書き"
+"する可能性があります。 ``ピン留め`` してオブジェクトをマーキングすることにより"
+"書込みカーソルの通過をやり過ごしてオブジェクトを保護することができますが、これ"
+"は書込みカーソルを跨いでオブジェクトをコピーすること、実際にはキャッシュ内に"
+"再保存を行うことによって処理されます。巨大なオブジェクトや大量のオブジェクトの"
+"ピン留めは、過度のディスク動作を引き起こす場合があります。ピン留めの本来の"
+"目的は、管理者によって明示的にマークされた小さく頻繁に使用されるオブジェクトの"
+"ためのものであったようです。"
+
+#: ../../arch/cache/cache-arch.en.rst:365
+msgid ""
+"This means the purpose of expiration data on objects is simply to prevent "
+"them from being served to clients. They are not in the standard sense "
+"deleted or cleaned up. The space can't be immediately reclaimed in any "
+"event because writing only happens at the write cursor. Deleting an object "
+"consists only of removing the directory entries in the volume directory "
+"which suffices to (eventually) free the space and render the document "
+"inaccessible."
+msgstr ""
+"循環バッファの目的は、単純にオブジェクトの失効データがクライアントに提供される"
+"のを防ぐことです。失効データは一般的な意味での削除やクリーンアップはされま"
+"せん。書込み処理は書込みカーソルでのみ発生するので、どんなイベントにおいても"
+"スペースは直ちには取り戻せません。オブジェクトの削除は（最終的には）スペースを"
+"解放してかつドキュメントをアクセス不可能にするのに十分な処理である、ボリューム"
+"ディレクトリのディレクトリエントリの削除のみで成り立ちます。"
+
+#: ../../arch/cache/cache-arch.en.rst:370
+msgid ""
+"Historically the cache is designed this way because web content was "
+"relatively small and not particularly consistent. The design also provides "
+"high performance and low consistency requirements. There are no "
+"fragmentation issues for the storage, and both cache misses and object "
+"deletions require no disk I/O. It does not deal particularly well with long "
+"term storage of large objects. See the :ref:`volume tagging` appendix for "
+"details on some work in this area."
+msgstr ""
+"ウェブコンテンツは比較的小さく特に一貫もしていなかったので、歴史的に"
+"キャッシュはこの方法の通りに設計されています。この設計は高性能でかつ低い"
+"一貫性の要件となります。ストレージのフラグメンテーション問題は発生せず、また"
+"キャッシュミスやオブジェクトの削除がディスク I/O を要求することもありません。"
+"巨大なオブジェクトの長期間保存はうまく扱いません。この部分の動作の詳細について"
+"は :ref:`volume tagging` の付録を見てください。"
+
+#: ../../arch/cache/cache-arch.en.rst:376
+msgid "Disk Failure"
+msgstr "ディスク障害"
+
+#: ../../arch/cache/cache-arch.en.rst:378
+msgid ""
+"The cache is designed to be relatively resistant to disk failures. Because "
+"each storage unit in each volume is mostly independent the loss of a disk "
+"simply means that the corresponding :cpp:class:`Vol` instances (one per "
+"cache volume that uses the storage unit) becomes unusable. The primary "
+"issue is updating the volume assignment table to both preserve assignments "
+"for objects on still operational volumes while distributing the assignments "
+"from the failed disk to those operational volumes. This mostly done in::"
+msgstr ""
+"キャッシュはディスク障害に比較的強いように設計されます。各ボリュームの"
+"各ストレージユニットはほぼ独立しているので、ディスクの損失は対応する "
+":cpp:class:`Vol` インスタンス（ストレージユニットを使うキャッシュボリューム"
+"毎のもの）が使えなくなることを単純に意味します。主な課題は故障したディスクから"
+"運用中のボリュームへの割当の配布中に、まだ運用中のボリューム上のオブジェクトの"
+"割当を両方保存するためのボリューム割当テーブルの更新処理です。これはほとんどが"
+"以下の中で処理されます::"
+
+#: ../../arch/cache/cache-arch.en.rst:382
+msgid ""
+"Restoring a disk to active duty is quite a bit more difficult task. "
+"Changing the volume assignment of a cache key renders any currently cached "
+"data inaccessible. This is obviouly not a problem when a disk has failed, "
+"but is a bit trickier to decide which cached objects are to be de facto "
+"evicted if a new storage unit is added to a running system. The mechanism "
+"for this, if any, is still under investigation."
+msgstr ""
+"ディスクを稼働状態に戻すのは非常に困難な作業です。キャッシュキーの"
+"ボリューム割当の変更は、全ての現在キャッシュされているデータへのアクセスを"
+"不可能にします。ディスクが故障した際にこれは当然ながら問題にはなりませんが、"
+"新しいストレージユニットが動作中のシステムに追加された場合、どのキャッシュ"
+"されたオブジェクトが事実上追い出されるか決定するのが少々扱いにくい処理です。"
+"このためのメカニズムは何かないか、まだ調査です。"
+
+#: ../../arch/cache/cache-arch.en.rst:385
+msgid "Implementation Details"
+msgstr "実装の詳細"
+
+#: ../../arch/cache/cache-arch.en.rst:388
+msgid "Stripe Directory"
+msgstr "ストライプディレクトリ"
+
+#: ../../arch/cache/cache-arch.en.rst:392
+msgid "The in memory volume directory entries are defined as described below."
+msgstr "メモリ上のボリュームディレクトリエントリは、以下の通りに定義されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:396
+msgid "Defined in |P-CacheDir.h|_."
+msgstr "|P-CacheDir.h|_ で定義される。"
+
+#: ../../arch/cache/cache-arch.en.rst:399
+msgid "Name"
+msgstr "名前"
+
+#: ../../arch/cache/cache-arch.en.rst:399
+msgid "Type"
+msgstr "型"
+
+#: ../../arch/cache/cache-arch.en.rst:399
+msgid "Use"
+msgstr "用途"
+
+#: ../../arch/cache/cache-arch.en.rst:401
+msgid "offset"
+msgstr "offset"
+
+#: ../../arch/cache/cache-arch.en.rst:401
+msgid "unsigned int:24"
+msgstr "unsigned int:24"
+
+#: ../../arch/cache/cache-arch.en.rst:401
+msgid "Offset of first byte of metadata (volume relative)"
+msgstr "（ボリュームに関連した）メタデータの先頭バイトのオフセット"
+
+#: ../../arch/cache/cache-arch.en.rst:402
+msgid "big"
+msgstr "big"
+
+#: ../../arch/cache/cache-arch.en.rst:402
+msgid "unsigned in:2"
+msgstr "unsigned in:2"
+
+#: ../../arch/cache/cache-arch.en.rst:402
+msgid "Size multiplier"
+msgstr "サイズの乗数"
+
+#: ../../arch/cache/cache-arch.en.rst:403
+msgid "size"
+msgstr "size"
+
+#: ../../arch/cache/cache-arch.en.rst:403
+msgid "unsigned int:6"
+msgstr "unsigned int:6"
+
+#: ../../arch/cache/cache-arch.en.rst:403
+msgid "Size"
+msgstr "サイズ"
+
+#: ../../arch/cache/cache-arch.en.rst:404
+msgid "tag"
+msgstr "tag"
+
+#: ../../arch/cache/cache-arch.en.rst:404
+msgid "unsigned int:12"
+msgstr "unsigned int:12"
+
+#: ../../arch/cache/cache-arch.en.rst:404
+msgid "Partial key (fast collision check)"
+msgstr "（高速な衝突チェックの為の）キーの一部"
+
+#: ../../arch/cache/cache-arch.en.rst:405
+msgid "phase"
+msgstr "phase"
+
+#: ../../arch/cache/cache-arch.en.rst:405
+#: ../../arch/cache/cache-arch.en.rst:406
+#: ../../arch/cache/cache-arch.en.rst:407
+#: ../../arch/cache/cache-arch.en.rst:408
+msgid "unsigned int:1"
+msgstr "unsigned int:1"
+
+#: ../../arch/cache/cache-arch.en.rst:405
+msgid "Unknown"
+msgstr "不明"
+
+#: ../../arch/cache/cache-arch.en.rst:406
+msgid "head"
+msgstr "head"
+
+#: ../../arch/cache/cache-arch.en.rst:406
+msgid "Flag: first fragment in an object"
+msgstr "オブジェクトの先頭のフラグメントを示すフラグ"
+
+#: ../../arch/cache/cache-arch.en.rst:407
+#: ../../arch/cache/cache-arch.en.rst:336
+msgid "pinned"
+msgstr "pinned"
+
+#: ../../arch/cache/cache-arch.en.rst:407
+msgid "Flag: document is pinned"
+msgstr "ドキュメントがピン留めされていることを示すフラグ"
+
+#: ../../arch/cache/cache-arch.en.rst:408
+msgid "token"
+msgstr "token"
+
+#: ../../arch/cache/cache-arch.en.rst:408
+msgid "Flag: Unknown"
+msgstr "不明なフラグ"
+
+#: ../../arch/cache/cache-arch.en.rst:409
+msgid "next"
+msgstr "next"
+
+#: ../../arch/cache/cache-arch.en.rst:409
+msgid "unsigned int:16"
+msgstr "unsigned int:16"
+
+#: ../../arch/cache/cache-arch.en.rst:409
+msgid "Segment local index of next entry."
+msgstr "次エントリへのセグメントローカルインデックス"
+
+#: ../../arch/cache/cache-arch.en.rst:410
+msgid "offset_high"
+msgstr "offset_high"
+
+#: ../../arch/cache/cache-arch.en.rst:410
+msgid "inku16"
+msgstr "inku16"
+
+#: ../../arch/cache/cache-arch.en.rst:410
+msgid "High order offset bits"
+msgstr "上位オフセットビット"
+
+#: ../../arch/cache/cache-arch.en.rst:413
+msgid ""
+"The stripe directory is an array of ``Dir`` instances. Each entry refers to "
+"a span in the volume which contains a cached object. Because every object "
+"in the cache has at least one directory entry this data has been made as "
+"small as possible."
+msgstr ""
+"ストライプディレクトリは ``Dir`` インスタンスの配列です。各エントリは"
+"キャッシュされたオブジェクトを持つボリュームのスパンを参照します。キャッシュ内"
+"の各オブジェクトは少なくとも一つのディレクトリエントリを持つため、このデータは"
+"可能な限り小さくなるよう設計されました。"
+
+#: ../../arch/cache/cache-arch.en.rst:415
+msgid ""
+"The offset value is the starting byte of the object in the volume. It is 40 "
+"bits long split between the *offset* (lower 24 bits) and *offset_high* "
+"(upper 16 bits) members. Note that since there is a directory for every "
+"storage unit in a cache volume, this is the offset in to the slice of a "
+"storage unit attached to that volume."
+msgstr ""
+"オフセット値はボリューム内におけるオブジェクトの開始バイトです。それは "
+"*offset* （下位 24 ビット） と *offset_high* （上位 16 ビット） メンバに渡って"
+"分割された 40 ビット長です。キャッシュボリュームの各ストレージユニット毎に"
+"ディレクトリは存在するため、この値はボリュームに接続されたストレージユニットの"
+"一部分へのオフセットであることに注意してください。"
+
+#: ../../arch/cache/cache-arch.en.rst:419
+msgid ""
+"The *size* and *big* values are used to calculate the approximate size of "
+"the span which contains the object. This value is used as the number of "
+"bytes to read from storage at the offset value. The exact size is contained "
+"in the object metadata in :cpp:class:`Doc` which is consulted once the read "
+"has completed. For this reason the approximate size needs to be at least as "
+"large as the actual size but can be larger, at the cost of reading the "
+"extraneous bytes."
+msgstr ""
+"*size* と *big* 値はオブジェクトを持つスパンの大まかなサイズを計算する為に"
+"使用されます。この値はストレージのオフセット値から読込み処理を行うための"
+"バイト数として使用されます。正確なサイズは一旦読込みが完了した後に、参照される"
+" :cpp:class:`Doc` のオブジェクトメタデータに含まれます。この理由は、大まかな"
+"サイズは少なくとも実サイズと同じかそれより大きくする必要があるものの、"
+"無関係なバイト列の読込みをするためコストが大きくなることにあります。"
+
+#: ../../arch/cache/cache-arch.en.rst:421
+msgid ""
+"The computation of the approximate size of the fragment is defined as::"
+msgstr ""
+"フラグメントの大まかなサイズの計算は以下のように定義されます。::"
+
+#: ../../arch/cache/cache-arch.en.rst:425
+msgid ""
+"where ``CACHE_BLOCK_SHIFT`` is the bit width of the size of a basic cache "
+"block (9, corresponding to a sector size of 512). Therefore the value with "
+"current defines is::"
+msgstr ""
+"``CACHE_BLOCK_SHIFT`` は基本的なキャッシュブロックのサイズのビット幅（9 で"
+"あり、 512 のセクタサイズに対応している） です。従ってその値は現在は以下の"
+"ように定義されます。::"
+
+#: ../../arch/cache/cache-arch.en.rst:429
+msgid "Because *big* is 2 bits the values for the multiplier of *size* are"
+msgstr "*big* は 2 ビットであるため、*size* の乗数の値は、"
+
+#: ../../arch/cache/cache-arch.en.rst:434
+msgid "*big*"
+msgstr "*big*"
+
+#: ../../arch/cache/cache-arch.en.rst:434
+msgid "Multiplier"
+msgstr "乗数"
+
+#: ../../arch/cache/cache-arch.en.rst:434
+msgid "Maximum Size"
+msgstr "最大サイズ"
+
+#: ../../arch/cache/cache-arch.en.rst:436
+msgid "0"
+msgstr "0"
+
+#: ../../arch/cache/cache-arch.en.rst:436
+msgid "512 (2^9)"
+msgstr "512 (2^9)"
+
+#: ../../arch/cache/cache-arch.en.rst:436
+#: ../../arch/cache/cache-arch.en.rst:438
+msgid "32768 (2^15)"
+msgstr "32768 (2^15)"
+
+#: ../../arch/cache/cache-arch.en.rst:437
+msgid "1"
+msgstr "1"
+
+#: ../../arch/cache/cache-arch.en.rst:437
+msgid "4096 (2^12)"
+msgstr "4096 (2^12)"
+
+#: ../../arch/cache/cache-arch.en.rst:437
+#: ../../arch/cache/cache-arch.en.rst:439
+msgid "262144 (2^18)"
+msgstr "262144 (2^18)"
+
+#: ../../arch/cache/cache-arch.en.rst:438
+msgid "2"
+msgstr "2"
+
+#: ../../arch/cache/cache-arch.en.rst:438
+msgid "2097152 (2^21)"
+msgstr "2097152 (2^21)"
+
+#: ../../arch/cache/cache-arch.en.rst:439
+msgid "3"
+msgstr "3"
+
+#: ../../arch/cache/cache-arch.en.rst:439
+msgid "16777216 (2^24)"
+msgstr "16777216 (2^24)"
+
+#: ../../arch/cache/cache-arch.en.rst:442
+msgid ""
+"Note also that *size* is effectively offset by one, so a value of 0 "
+"indicates a single unit of the multiplier."
+msgstr ""
+"*size* も 1 が効率的なオフセットであり、そのため 0 は乗数の単一のユニットを"
+"示すことに注意してください。"
+
+#: ../../arch/cache/cache-arch.en.rst:446
+msgid "The target fragment size can set with the :file:`records.config` value"
+msgstr ""
+"ターゲットフラグメントサイズは :file:`records.config` の値で設定できます。"
+
+#: ../../arch/cache/cache-arch.en.rst:448
+msgid "``proxy.config.cache.target_fragment_size``"
+msgstr "``proxy.config.cache.target_fragment_size``"
+
+#: ../../arch/cache/cache-arch.en.rst:450
+msgid ""
+"This value should be chosen so that it is a multiple of a :ref:`cache entry "
+"multiplier <big-mult>`. It is not necessary to make it a power of 2 [#]_. "
+"Larger fragments increase I/O efficiency but lead to more wasted space. The "
+"default size (1M, 2^20) is a reasonable choice in most circumstances "
+"altough in very specific cases there can be benefit from tuning this "
+"parameter. |TS| imposes an internal maximum of a 4194232 bytes which is 4M "
+"(2^22) less the size of a struct :cpp:class:`Doc`. In practice then the "
+"largest reasonable target fragment size is 4M - 262144 = 3932160."
+msgstr ""
+":ref:`キャッシュエントリ乗数 <big-mult>` の倍数になるようにこの値を選択する"
+"べきです。 2 の冪乗にする必要はありません。 [#]_ 巨大なフラグメントは I/O の"
+"効率を向上しますが、無駄なスペースが増加します。デフォルトサイズ（1M, "
+"2^20）はこのパラメータを合わせることにより恩恵が得られる、非常に特殊なケースを"
+"除いてほとんどの環境において合理的な選択です。 |TS| は :cpp:class:`Doc` "
+"構造のサイズより少ない 4M（2^22） である 4194232 バイトの内部的な最大値を"
+"強制します。事実上、最大の合理的なターゲットフラグメントサイズは 4M - 262144 "
+"= 3932160 です。"
+
+#: ../../arch/cache/cache-arch.en.rst:456
+msgid ""
+"When a fragment is stored to disk the size data in the cache index entry is "
+"set to the finest granularity permitted by the size of the fragment. To "
+"determine this consult the :ref:`cache entry multipler <big-mult>` table, "
+"find the smallest maximum size that is at least as large as the fragment. "
+"That will indicate the value of *big* selected and therefore the "
+"granularity of the approximate size. That represents the largest possible "
+"amount of wasted disk I/O when the fragment is read from disk."
+msgstr ""
+"フラグメントがディスクへ保存される際、キャッシュインデックスエントリのサイズ"
+"データはフラグメントのサイズにより許容される最小粒度で設定されます。これが "
+":ref:`キャッシュエントリ乗数 <big-mult>` テーブルを参照するかを決定する"
+"ため、少なくともフラグメントと同じくらい大きな、最も小さな最大サイズを検索"
+"します。それは選択された *big* の値であり、従って大まかなサイズの粒度を示すで"
+"しょう。それはフラグメントがディスクから読み込まれる際に発生しうる最大の余分な"
+"ディスク I/O の量を表します。"
+
+#: ../../arch/cache/cache-arch.en.rst:464
+msgid ""
+"The set of index entries for a volume are grouped in to *segments*. The "
+"number of segments for an index is selected so that there are as few "
+"segments as possible such that no segment has more than 2^16 entries. Intra-"
+"segment references can therefore use a 16 bit value to refer to any other "
+"entry in the segment."
+msgstr ""
+"ボリュームのインデックスエントリのセットは *セグメント* へグループ化されます。"
+"インデックスのセグメントの数は、 2^16 エントリを超えるセグメント数にならない"
+"ように可能な限り少ないセグメントになるよう選択されます。内部セグメントの参照は"
+"そのため、セグメントの任意の他のエントリを参照する為に 16 ビット値を使用"
+"します。"
+
+#: ../../arch/cache/cache-arch.en.rst:468
+msgid ""
+"Index entries in a segment are grouped *buckets* each of ``DIR_DEPTH`` "
+"(currently 4) entries. These are handled in the standard hash table way, "
+"giving somewhat less than 2^14 buckets per segment."
+msgstr ""
+"セグメントのインデックスエントリは ``DIR_DEPTH`` （現在は 4）エントリ毎に "
+"*バケット* へグループ化されます。これらはセグメント毎に 2^14 未満のバケットを"
+"割り当てる標準的なハッシュテーブルの手法で処理されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:471
+msgid "The comment in :file:`records.config` is simply wrong."
+msgstr ":file:`records.config` のコメントは単純に間違っています。"
+
+#: ../../arch/cache/cache-arch.en.rst:476
+msgid "Directory Probing"
+msgstr "ディレクトリ検索"
+
+#: ../../arch/cache/cache-arch.en.rst:478
+msgid ""
+"Directory probing is locating a specific directory entry in the stripe "
+"directory based on a cache ID. This is handled primarily by the function :"
+"cpp:func:`dir_probe()`. This is passed the cache ID (:arg:`key`), a stripe "
+"(:arg:`d`), and a last collision (:arg:`last_collision`). The last of these "
+"is an in and out parameter, updated as useful during the probe."
+msgstr ""
+"ディレクトリ検索はキャッシュ ID に基づくストライプディレクトリの特定の"
+"ディレクトリエントリを検索します。これは主に :cpp:func:`dir_probe()` 関数に"
+"よって処理されます。この関数はキャッシュ ID（:arg:`key`） 、ストライプ（"
+":arg:`d`）、そして最後の衝突（:arg:`last_collision`）が渡されます。最後の衝突"
+"はパラメータを読み書きして検索に役立つよう更新されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:483
+msgid ""
+"Given an ID, the top half (64 bits) is used as a :ref:`segment <dir-"
+"segment>` index, taken modulo the number of segments in the directory. The "
+"bottom half is used as a :ref:`bucket <dir-bucket>` index, taken modulo the "
+"number of buckets per segment. The :arg:`last_collision` value is used to "
+"mark the last matching entry returned by `dir_probe`."
+msgstr ""
+"与えられた ID の上位半分（64 ビット）は :ref:`セグメント <dir-segment>` "
+"インデックスとして使用され、ディレクトリのセグメント数の剰余として扱われます。"
+"下位半分は :ref:`バケット <dir-bucket>` インデックスとして使用され、"
+"セグメント毎のバケット数の剰余として扱われます。:arg:`last_collision` の"
+"値は `dir_probe` の戻り値となる最後にマッチするエントリをマークするために使用"
+"されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:487
+msgid ""
+"After computing the appropriate bucket, the entries in that bucket are "
+"searched to find a match. In this case a match is detected by comparison of "
+"the bottom 12 bits of the cache ID (the *cache tag*). The search starts at "
+"the base entry for the bucket and then proceeds via the linked list of "
+"entries from that first entry. If a tag match is found and there is no :arg:"
+"`collision` then that entry is returned and :arg:`last_collision` is "
+"updated to that entry. If :arg:`collision` is set, then if it isn't the "
+"current match the search continues down the linked list, otherwise :arg:"
+"`collision` is cleared and the search continues. The effect of this is that "
+"matches are skipped until the last returned match (:arg:`last_collision`) "
+"is found, after which the next match (if any) is returned. If the search "
+"falls off the end of the linked list then a miss result is returned (if no "
+"last collision), otherwise the probe is restarted after clearing the "
+"collision on the presumption that the entry for the collision has been "
+"removed from the bucket. This can lead to repeats among the returned values "
+"but guarantees that no valid entry will be skipped."
+msgstr ""
+"適切なバケットを算出した後、バケットのエントリはマッチするものを探すために"
+"検索されます。この場合、マッチするかがキャッシュキーの下位 12 ビット"
+"（ *キャッシュタグ* ）の比較によって検出されます。検索はバケットのベース"
+"エントリから開始して、その後先頭のエントリからのエントリ連結リストから"
+"進めます。タグのマッチが発見されていてかつ :arg:`collision` が無い場合、"
+"エントリは返されてそのエントリへの :arg:`last_collision` が更新されます。 "
+":arg:`collision` がセットされていて現在マッチしていない場合、検索は連結"
+"リストの次へ続きます。あるいは :arg:`collision` をクリアし、検索を継続します。"
+"これにより最後に返されたマッチしたもの （:arg:`last_collision`） が見つかる"
+"までマッチングがスキップされ、その後に次のマッチするものが（もしあるなら）"
+"返されます。検索が連結リストの最後まで到達した場合、失敗した結果が返される"
+"（もし最後の衝突がないなら）、あるいは衝突したエントリがバケットから削除されて"
+"いるとの想定の上で、衝突を解消した後に検索が再開されます。この処理は値が返され"
+"るまで繰り返すことができますが、正常なエントリがスキップされることがないことを"
+"保証します。"
+
+#: ../../arch/cache/cache-arch.en.rst:498
+msgid ""
+"Last collision can therefore be used to restart a probe at a later time. "
+"This is important because the match returned may not be the actual object - "
+"although the hashing of the cache ID to a bucket and the tag matching is "
+"unlikely to create false positives, that is possible. When a fragment is "
+"read the full cache ID is available and checked and if wrong, that read can "
+"be discarded and the next possible match from the directory found because "
+"the cache virtual connection tracks the last collision value."
+msgstr ""
+"最後の衝突は従って後で検索を再開するのに使用できます。返されたマッチしたものが"
+"実際のオブジェクトではないかも知れないため、これは重要です。バケットへの"
+"キャッシュ ID のハッシュ化とタグマッチングが偽陽性を発生しそうに無くても、"
+"それは使用可能です。フラグメントが読み込まれる際、キャッシュ ID の全てが使用"
+"可能でありチェックされた結果誤りがある場合、その読込みは破棄が可能であり"
+"キャッシュ仮想接続は最後の衝突値を追跡するためディレクトリから次のマッチする"
+"可能性があるものが検索されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:506
+msgid "Cache Operations"
+msgstr "キャッシュ操作"
+
+#: ../../arch/cache/cache-arch.en.rst:508
+msgid ""
+"Cache activity starts after the HTTP request header has been parsed and "
+"remapped. Tunneled transactions do not interact with the cache because the "
+"headers are never parsed."
+msgstr ""
+"キャッシュアクティビティは HTTP リクエストヘッダがパースされ、リマップされて"
+"から開始します。トンネルされたトランザクションはヘッダがパースされることがない"
+"ためキャッシュに影響しません。"
+
+#: ../../arch/cache/cache-arch.en.rst:510
+msgid ""
+"To understand the logic we must introduce the term \"cache valid\" which "
+"means something that is directly related to an object that is valid to be "
+"put in the cache (e.g. a ``DELETE`` which refers to a URL that is cache "
+"valid but cannot be cached itself). This is important because |TS| computes "
+"cache validity several times during a transaction and only performs cache "
+"operations for cache valid results. The criteria used changes during the "
+"course of the transaction as well. This is done to avoid the cost of cache "
+"activity for objects that cannot be in the cache."
+msgstr ""
+"ロジックを理解するため、\"キャッシュバリッド\" という用語を紹介しなければ"
+"なりません。これはキャッシュされるのに有効なオブジェクトに直接関係するもの"
+"を意味します。（例えばキャッシュバリッドな URL を参照する ``DELETE`` は"
+"それ自身はキャッシュできません） |TS| はトランザクション中に何度かキャッシュの"
+"正当性を計算してキャッシュバリッドの結果によってのみキャッシュ操作を行うため、"
+"この用語は重要です。正当性の基準は同様にトランザクション中の変更を使用しま"
+"した。この処理はキャッシュできないオブジェクトの為のキャッシュアクティビティに"
+"よるコストを避けるために実行されます。"
+
+#: ../../arch/cache/cache-arch.en.rst:512
+msgid ""
+"The three basic cache operations are lookup, read, and write. We will take "
+"deleting entries as a special case of writing where only the volume "
+"directory is updated."
+msgstr ""
+"3 つの基本的なキャッシュ操作は検索、読込み、そして書込みです。エントリの"
+"削除はボリュームディレクトリが更新される場合のみの書込みの特殊なケースとして"
+"扱います。"
+
+#: ../../arch/cache/cache-arch.en.rst:514
+msgid ""
+"After the client request header is parsed and is determined to be "
+"potentially cacheable, a `cache lookup`_ is done. If successful a `cache "
+"read`_ is attempted. If either the lookup or the read fails and the content "
+"is considered cacheable then a `cache write`_ is attempted."
+msgstr ""
+"クライアントリクエストヘッダがパースされてキャッシュできると決定された後、 "
+"`キャッシュ検索`_ が行われます。成功した場合 `キャッシュ読込み`_ が試みられ"
+"ます。検索か読込みのいずれかが失敗してかつコンテンツがキャッシュできると判断"
+"される場合、 `キャッシュ書込み`_  が試みられます。"
+
+#: ../../arch/cache/cache-arch.en.rst:517
+msgid "Cacheability"
+msgstr "キャッシャビリティ"
+
+#: ../../arch/cache/cache-arch.en.rst:519
+msgid ""
+"The first thing done with a request with respect to cache is to determine "
+"whether it is potentially a valid object for the cache. After initial "
+"parsing and remapping this check is done primarily to detect a negative "
+"result because if so all further cache processing is skipped -- it will not "
+"be put in to the cache nor will a cache lookup be done. There are a number "
+"of prerequisites along with configuration options to change them. "
+"Additional cacheability checks are done later in the process when more is "
+"known about the transaction (such as plugin operations and the origin "
+"server response). Those checks are described as appropriate in the sections "
+"on the relevant operations."
+msgstr ""
+"キャッシュに関するリクエストで最初に行われるのは、潜在的にキャッシュするのに"
+"有効なオブジェクトであるかどうかを決定することです。最初のパースとリマップの"
+"後、このチェックは主にネガティブな結果を検出するために行われます。これはもし"
+"ネガティブな結果が出た場合は全ての後のキャッシュ処理がスキップされる、すなわち"
+"キャッシュに配置されずキャッシュ検索も実行されなくなるためです。それらを変更"
+"する設定オプションに加え、必要条件が数多く存在します。追加のキャッシャビリティ"
+"チェックは、トランザクションについてより多くのことが分かった際の処理"
+"（プラグイン操作やオリジンサーバレスポンスのような）以降に実行されます。"
+"それらのチェックについては関連する操作のセクションで適切に説明します。"
+
+#: ../../arch/cache/cache-arch.en.rst:521
+msgid "The set of things which can affect cacheability are"
+msgstr "キャッシャビリティに影響できる項目のセットは、"
+
+#: ../../arch/cache/cache-arch.en.rst:523
+msgid "Built in constraints"
+msgstr "組込みの制約"
+
+#: ../../arch/cache/cache-arch.en.rst:524
+msgid "Settings in :file:`records.config`"
+msgstr ":file:`records.config` の設定"
+
+#: ../../arch/cache/cache-arch.en.rst:525
+msgid "Settings in :file:`cache.config`"
+msgstr ":file:`cache.config` の設定"
+
+#: ../../arch/cache/cache-arch.en.rst:526
+msgid "Plugin operations"
+msgstr "プラグインの操作"
+
+#: ../../arch/cache/cache-arch.en.rst:528
+msgid ""
+"The initial internal checks, along with their :file:`records.config` "
+"overrides[#]_, are done in::"
+msgstr ""
+"初期の内部チェック、それらの :file:`records.config` を伴ったオーバー"
+"ライドは以下の関数内で処理されます。 ::"
+
+#: ../../arch/cache/cache-arch.en.rst:532
+msgid "The checks that are done are"
+msgstr "チェックは以下のように行われます。"
+
+#: ../../arch/cache/cache-arch.en.rst:537
+msgid "Cacheable Method"
+msgstr "キャッシュ可能なメソッド"
+
+#: ../../arch/cache/cache-arch.en.rst:535
+msgid ""
+"The request must be one of ``GET``, ``HEAD``, ``POST``, ``DELETE``, ``PUT``."
+msgstr ""
+"リクエストは ``GET``, ``HEAD``, ``POST``, ``DELETE``, ``PUT`` のいずれかで"
+"なければなりません。"
+
+#: ../../arch/cache/cache-arch.en.rst:537
+msgid "See ``HttpTransact::is_method_cache_lookupable()``."
+msgstr "``HttpTransact::is_method_cache_lookupable()`` を確認してください。"
+
+#: ../../arch/cache/cache-arch.en.rst:551
+msgid "Dynamic URL"
+msgstr "動的 URL"
+
+#: ../../arch/cache/cache-arch.en.rst:540
+msgid ""
+"|TS| tries to avoid caching dynamic content because it's dynamic. A URL is "
+"considered dynamic if it"
+msgstr ""
+"URL が動的であるため |TS| は動的コンテンツのキャッシングを避けようとします。"
+"もし以下の条件に当てはまるなら URL は動的であると考えられます。"
+
+#: ../../arch/cache/cache-arch.en.rst:542
+msgid "is not ``HTTP`` or ``HTTPS``"
+msgstr "``HTTP`` や ``HTTPS`` ではない"
+
+#: ../../arch/cache/cache-arch.en.rst:543
+msgid "has query parameters"
+msgstr "クエリパラメータを含む"
+
+#: ../../arch/cache/cache-arch.en.rst:544
+msgid "ends in ``asp``"
+msgstr "``asp`` で終わる"
+
+#: ../../arch/cache/cache-arch.en.rst:545
+msgid "has ``cgi`` in the path"
+msgstr "パスに ``cgi`` を含む"
+
+#: ../../arch/cache/cache-arch.en.rst:547
+msgid "This check can be disabled by setting a non-zero value for::"
+msgstr "このチェックは以下にゼロでない値を設定することで無効にできます::"
+
+#: ../../arch/cache/cache-arch.en.rst:551
+msgid ""
+"In addition if a TTL is set for rule that matches in :file:`cache.config` "
+"then this check is not done."
+msgstr ""
+"加えて、 :file:`cache.config` にマッチするルールに TTL が設定されていたら"
+"このチェックは行われません。"
+
+#: ../../arch/cache/cache-arch.en.rst:554
+msgid "Range Request"
+msgstr "レンジリクエスト"
+
+#: ../../arch/cache/cache-arch.en.rst:554
+msgid ""
+"Cache valid only if :ts:cv:`proxy.config.http.cache.range.lookup` in :file:"
+"`records.config` is non-zero. This does not mean the range request can be "
+"cached, only that it might be satisfiable from the cache."
+msgstr ""
+":file:`records.config` の :ts:cv:`proxy.config.http.cache.range.lookup` が"
+"ゼロでない値である場合に限りキャッシュバリッドです。これはレンジリクエストが"
+"キャッシュ可能であることを意味しません。キャッシュから満たされるかもしれないと"
+"いうだけです。"
+
+#: ../../arch/cache/cache-arch.en.rst:556
+msgid ""
+"A plugin can call :c:func:`TSHttpTxnReqCacheableSet()` to force the request "
+"to be viewed as cache valid."
+msgstr ""
+"プラグインはリクエストがキャッシュバリッドと見なされる事を強制するため "
+":c:func:`TSHttpTxnReqCacheableSet()` を呼び出せます。"
+
+#: ../../arch/cache/cache-arch.en.rst:558
+msgid ""
+"The code appears to check :file:`cache.config` in this logic by setting the "
+"``does_config_permit_lookup`` in the ``cache_info.directives`` of the state "
+"machine instance but I can find no place where the value is used. The "
+"directive ``does_config_permit_storing`` is set and later checked so the "
+"directive (from the administrator point of view) is effective in preventing "
+"caching of the object."
+msgstr ""
+"コード上ではこのロジックにおいてステートマシンインスタンスの "
+"``cache_info.directives`` の中の ``does_config_permit_lookup`` の値を設定する"
+"ことにより :file:`cache.config` をチェックするように見えますが、その値が使用"
+"されている箇所は発見できません。 ``does_config_permit_storing`` ディレクティブ"
+"が設定されてその後にチェックされるので、このディレクティブは（管理者の観点"
+"から）オブジェクトのキャッシュすることを妨げるのに効果的です。"
+
+#: ../../arch/cache/cache-arch.en.rst:561
+msgid "Cache Lookup"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:563
+msgid ""
+"If the initial request is not determined to be cache invalid then a lookup "
+"is done. Cache lookup determines if an object is in the cache and if so, "
+"where it is located. In some cases the lookup proceeds to read the first "
+"``Doc`` from disk to verify the object is still present in the cache."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:565
+msgid "There are three basic steps to a cache lookup."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:567
+msgid "The cache key is computed."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:569
+msgid ""
+"This is normally computed using the request URL but it can be overridden :"
+"ref:`by a plugin <cache-key>` . As far as I can tell the cache index string "
+"is not stored anywhere, it presumed computable from the client request "
+"header."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:571
+msgid "The cache stripe is determined (based on the cache key)."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:573
+msgid ""
+"The cache key is used as a hash key in to an array of :cpp:class:`Vol` "
+"instances. The construction and arrangement of this array is the essence of "
+"how volumes are assigned."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:577
+msgid ""
+"Various other lookaside directories are checked as well, such as the :ref:"
+"`aggregation buffer <aggregation-buffer>`."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:579
+msgid ""
+"If the directory entry is found the first ``Doc`` is read from disk and "
+"checked for validity."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:581
+msgid ""
+"This is done in :cpp:func:`CacheVC::openReadStartHead()` or :cpp:func:"
+"`CacheVC::openReadStartEarliest()` which are tightly coupled methods."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:583
+msgid ""
+"If the lookup succeeds then a more detailed directory entry (struct :cpp:"
+"class:`OpenDir`) is created. Note that the directory probe includes a check "
+"for an already extant ``OpenDir`` which if found is returned without "
+"additional work."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:586
+msgid "Cache Read"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:588
+msgid ""
+"Cache read starts after a successful `cache lookup`_. At this point the "
+"first ``Doc`` has been loaded in to memory and can be consulted for "
+"additional information. This will always contain the HTTP headers for all "
+"alternates of the object."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:0
+msgid "Read while write"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:592
+msgid ""
+"There is provision in the code to support \"read while write\", that is "
+"serving an object from cache in one transaction while it is being written "
+"in another. It is unclear to me if this actually works. It must "
+"specifically enabled in :file:`records.config` and if not, a cache read "
+"will fail if the object is currently be written or updated."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:594
+msgid ""
+"At this point an alternate for the object is selected. This is done by "
+"comparing the client request to the stored response headers, but it can be "
+"controlled by a plugin using ``TS_HTTP_ALT_SELECT_HOOK``."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:596
+msgid ""
+"The content can now be checked to see if it is stale by calculating the "
+"\"freshness\" of the object. This is essential checking how old the object "
+"is by looking at the headers and possibly other metadata (note the headers "
+"can't be checked until we've selected an alternate)."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:598
+msgid "Most of this work is done in::"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:602
+msgid ""
+"First the TTL (time to live) value which can be set in:file:`cache.config` "
+"is checked if the request matches the configuration file line. This is done "
+"based on when the object was placed in cache, not on any data in the "
+"headers."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:604
+msgid ""
+"Next an internal flag (\"needs-revalidate-once\") is checked if the :file:"
+"`cache.config` value \"revalidate-after\" is not set, and if set the object "
+"is marked \"stale\"."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:606
+msgid "After these checks the object age is calculated by::"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:610
+msgid ""
+"and then any configured fuzzing is applied. The limits to this age based on "
+"available data is calculated by::"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:614
+msgid ""
+"How this age is used is determined by the :file:`records.config` value::"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:618
+msgid ""
+"If this is zero then the built caclulations are used which compare the "
+"freshness limits with document age, modified by any of the client supplied "
+"cache control values ``max-age``, ``min-fresh``, ``max-stale`` unless "
+"explicitly overridden in :file:`cache.config`."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:620
+msgid ""
+"If the object is not stale then it is served to the client. If stale the "
+"client request may be changed to an ``If Modified Since`` request to "
+"revalidate."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:622
+msgid ""
+"The request is served using a standard virtual connection tunnel "
+"(``HttpTunnel``) with the :cpp:class:`CacheVC` acting as the producer and "
+"the client ``NetVC`` acting as the sink. If the request is a range request "
+"this can be modified with a transform to select the appropriate parts of "
+"the object or, if the request contains a single range, it can use the range "
+"acceleration."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:627
+msgid ""
+"Range acceleration is done by consulting a fragment offset table attached "
+"to the earliest ``Doc`` which contains offsets for all fragments past the "
+"first. This allows loading the fragment containing the first requested byte "
+"immediately rather than performing reads on the intermediate fragments."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:632
+msgid "Cache Write"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:634
+msgid ""
+"Writing to cache is handled by an instance of the class :cpp:class:"
+"`CacheVC`. This is a virtual connection which receives data and writes it "
+"to cache, acting as a sink. For a standard transaction data transfers "
+"between virtual connections (*VConns*) are handled by :cpp:class:"
+"HttpTunnel. Writing to cache is done by attaching a ``CacheVC`` instance as "
+"a tunnel consumer. It therefore operates in parallel with the virtual "
+"connection that transfers data to the client. The data does not flow to the "
+"cache and then to the client, it is split and goes both directions in "
+"parallel. This avoids any data synchronization issues between the two."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:0
+msgid "Writing to disk"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:643
+msgid ""
+"The actual write to disk is handled in a separate thread dedicated to I/O "
+"operations, the AIO threads. The cache logic marshals the data and then "
+"hands the operation off to the AIO thread which signals back once the "
+"operation completes."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:647
+msgid ""
+"While each ``CacheVC`` handles its transactions independently, they do "
+"interact at the volume level as each ``CacheVC`` makes calls to the volume "
+"object to write its data to the volume content. The ``CacheVC`` accumulates "
+"data internally until either the transaction is complete or the amount of "
+"data to write exceeds the target fragment size. In the former case the "
+"entire object is submitted to the volume to be written. In the latter case "
+"a target fragment size amount of data is submitted and the ``CacheVC`` "
+"continues to operate on subsequent data. The volume in turn places these "
+"write requests in an holding area called the `aggregation buffer`_."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:654
+msgid ""
+"For objects under the target fragment size there is no consideration of "
+"order, the object is simply written to the volume content. For larger "
+"objects the earliest ``Doc`` is written first and the first ``Doc`` written "
+"last. This provides some detection ability should the object be "
+"overwritten. Because of the nature of the write cursor no fragment after "
+"the first fragment (in the earliest ``Doc``) can be overwritten without "
+"also overwriting that first fragment (since we know at the time the object "
+"was finalized in the cache the write cursor was at the position of the "
+"first ``Doc``)."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:661
+msgid ""
+"It is the responsibility of the ``CacheVC`` to not submit writes that "
+"exceed the target fragment size."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:666
+msgid "Update"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:668
+msgid ""
+"Cache write also covers the case where an existing object in the cache is "
+"modified. This occurs when"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:670
+msgid ""
+"A conditional request is made to the origin server and a ``304 - Not "
+"Modified`` response is received."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:671
+msgid ""
+"An alternate of the object is retrieved from an origin server and added to "
+"the object."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:672
+msgid ""
+"An alternate of the object is removed (e.g., due to a ``DELETE`` request)."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:674
+msgid ""
+"In every case the metadata for the object must be modified. Because |TS| "
+"never updates data already in the cache this means the first ``Doc`` will "
+"be written to the cache again and the volume directory entry updated. "
+"Because a client request has already been processed the first ``Doc`` has "
+"been read from cache and is in memory. The alternate vector is updated as "
+"appropriate (an entry added or removed, or changed to contain the new HTTP "
+"headers), and then written to disk. It is possible for multiple alternates "
+"to be updated by different ``CacheVC`` instances at the same time. The only "
+"contention is the first ``Doc``, the rest of the data for each alternate is "
+"completely independent."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:684
+msgid "Aggregation Buffer"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:686
+msgid ""
+"Disk writes to cache are handled through an *aggregation buffer*. There is "
+"one for each :cpp:class:`Vol` instance. To minimize the number of system "
+"calls data is written to disk in units of roughly :ref:`target fragment "
+"size <target-fragment-size>` bytes. The algorithm used is simple - data is "
+"piled up in the aggregation buffer until no more will fit without going "
+"over the targer fragment size, at which point the buffer is written to disk "
+"and the volume directory entries for objects with data in the buffer are "
+"updated with the actual disk locations for those objects (which are "
+"determined by the write to disk action). After the buffer is written it is "
+"cleared and process repeats. There is a special lookup table for the "
+"aggregation buffer so that object lookup can find cache data in that memory."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:694
+msgid ""
+"Because data in the aggregation buffer is visible to other parts of the "
+"cache, particularly `cache lookup`_, there is no need to push a partial "
+"filled aggregation buffer to disk. In effect any such data is effectively "
+"memory cached until enough additional cache content arrives to fill the "
+"buffer."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:698
+msgid ""
+"The target fragment size has little effect on small objects because the "
+"fragment sized is used only to parcel out disk write operations. For larger "
+"objects the effect very significant as it causes those objects to be broken "
+"up in to fragments at different locations on in the volume. Each fragment "
+"write has its own entry in the volume directory which are computational "
+"chained (each cache key is computed from the previous one). If possible a "
+"fragment table is accumulated in the earliest ``Doc`` which has the offsets "
+"of the first byte for each fragment."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:705
+msgid "Evacuation Mechanics"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:707
+msgid ""
+"By default the write cursor will overwrite (de facto evict from cache) "
+"objects as it proceeds once it has gone around the cache stripe at least "
+"once. In some cases this is not acceptable and the object is *evacuated* by "
+"reading it from the cache and then writing it back to cache which moves the "
+"physical storage of the object from in front of the write cursor to behind "
+"the write cursor. Objects that are evacuated are handled in this way based "
+"on data in stripe data structures (attached to the :cpp:class:`Vol` "
+"instance)."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:713
+msgid ""
+"Evacuation data structures are defined by dividing up the volume content in "
+"to a disjoint and contiguous set of regions of ``EVACUATION_BUCKET_SIZE`` "
+"bytes. The :cpp:member:`Vol::evacuate` member is an array with an element "
+"for each evacuation region. Each element is a doubly linked list of :cpp:"
+"class:`EvacuationBlock` instances. Each instance contains a :cpp:class:"
+"`Dir` that specifies the fragment to evacuate. It is assumed that an "
+"evacuation block is placed in the evacuation bucket (array element) that "
+"corresponds to the evacuation region in which the fragment is located "
+"although no ordering per bucket is enforced in the linked list (this "
+"sorting is handled during evacuation). Objects are evacuated by specifying "
+"the first or earliest fragment in the evactuation block. The evactuation "
+"operation will then continue the evacuation for subsequent fragments in the "
+"object by adding those fragments in evacuation blocks. Note that the actual "
+"evacuation of those fragments is delayed until the write cursor reaches the "
+"fragments, it is not ncessarily done at the time the first / earliest "
+"fragment is evacuated."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:724
+msgid ""
+"There are two types of evacuations, reader based and forced. The "
+"``EvacuationBlock`` has a reader count to track this. If the reader count "
+"is zero, then it is a forced evacuation and the the target, if it exists, "
+"will be evacuated when the write cursor gets close. If the reader value is "
+"non-zero then it is a count of entities that are currently expecting to be "
+"able to read the object. Readers increment the count when they require read "
+"access to the object, or create the ``EvacuationBlock`` with a count of 1. "
+"When a reader is finished with the object it decrements the count and "
+"removes the ``EvacuationBlock`` if the count goes to zero. If the "
+"``EvacuationBlock`` already exists with a count of zero, the count is not "
+"modified and the number of readers is not tracked, so the evacuation is "
+"valid as long as the object exists."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:732
+msgid ""
+"Evacuation is driven by cache writes, essentially in :cpp:member:`Vol::"
+"aggWrite`. This method processes the pending cache virtual connections that "
+"are trying to write to the stripe. Some of these may be evacuation virtual "
+"connections. If so then the completion callback for that virtual connection "
+"is called as the data is put in to the aggregation buffer."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:737
+msgid ""
+"When no more cache virtual connections can be processed (due to an empty "
+"queue or the aggregation buffer filling) then :cpp:member:`Vol::evac_range` "
+"is called to clear the range to be overwritten plus an additional :ts:const:"
+"`EVACUATION_SIZE` range. The buckets covering that range are checked. If "
+"there are any items in the buckets a new cache virtual connection (a \"doc "
+"evacuator\") is created and used to read the evacuation item closest to the "
+"write cursor (i.e. with the smallest offset in the stripe) instead of the "
+"aggregation write proceeding. When the read completes it is checked for "
+"validity and if valid, the cache virtual connection for it is placed at the "
+"front of the write queue for the stripe and the write aggregation resumed."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:745
+msgid ""
+"Before doing a write, the method :cpp:func:`Vol::evac_range()` is called to "
+"start an evacuation. If any fragments are found in the buckets in the range "
+"the earliest such fragment (smallest offset, closest to the write cursor) "
+"is selected and read from disk and the aggregation buffer write is "
+"suspended. The read is done via a cache virtual connection which also "
+"effectively serves as the read buffer. Once the read is complete, that "
+"cache virtual connection instance (the \"doc evacuator\") is place at the "
+"front of the stripe write queue and written out in turn. Because the "
+"fragment data is now in memory it is acceptable to overwrite the disk image."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:752
+msgid ""
+"Note that when normal stripe writing is resumed, this same check is done "
+"again, each time evauating (if needed) a fragment and queuing them for "
+"writing in turn."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:755
+msgid ""
+"Updates to the directory are done when the write for the evacuated fragment "
+"completes. Multi-fragment objects are detected after the read completes for "
+"a fragment. If it is not the first fragment then the next fragment is "
+"marked for evacuation (which in turn, when it is read, will pull the "
+"subsequent fragment). The logic doesn't seem to check the length and "
+"presumes that the end of the alternate is when the next key is not in the "
+"directory."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:760
+msgid ""
+"This interacts with the \"one at a time\" strategy of the aggregation write "
+"logic. If a fragment is close to the fragment being evacuated it may end up "
+"in the same evacuation bucket. Because the aggregation write checks every "
+"time for the \"next\" fragment to evacuate it will find that next fragment "
+"and evacuate it before it is overwritten."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:777
+msgid "Evacuation Operation"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:779
+msgid ""
+"The primary source of fragments to be evacuated are active fragments. That "
+"is fragments which are currently open, to be read or written. This is "
+"tracked by the reader value in the evacuation blocks noted above."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:781
+msgid ""
+"If object pinning is enabled then a scan is done on a regular basis as the "
+"write cursor moves to detected pinned objects and mark them for evacuation."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:783
+msgid ""
+"Fragments can also be evacuated through *hit evacuation*. This is "
+"configured by :ts:cv:`proxy.config.cache.hit_evacuate_percent` and :ts:cv:"
+"`proxy.config.cache.hit_evacuate_size_limit`. When a fragment is read it is "
+"checked to see if it is close and in front of the write cursor, close being "
+"less than the specified percent of the size of the stripe. If set at the "
+"default value of 10, then if the fragment is withing 10% of the size of the "
+"stripe it is marked for evacuation. This is cleared if the write cursor "
+"passes through the fragment while it remains open (as all open objects are "
+"evacuated). If when the object is closed the fragment is still marked then "
+"it is placed in the appropriate evacuation bucket."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:786
+msgid "Initialization"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:788
+msgid ""
+"Initialization starts with an instance of :cpp:class:`Store` reading the "
+"storage configuration file, by default :file:`storage.config`. For each "
+"valid element in the file an instance of :cpp:class:`Span` is created. "
+"These are of basically four types,"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:792
+msgid "File"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:793
+msgid "Directory"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:794
+msgid "Disk"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:795
+msgid "Raw device"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:804
+msgid ""
+"After configuration initialization the cache processor is started by "
+"calling :ccp:func:`CacheProcessor::start()`. This does a number of things."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:838
+msgid "Footnotes"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:839
+msgid ""
+"`Work is under way <https://issues.apache.org/jira/browse/TS-2020>`_ on "
+"extending this to include objects that are in the ram cache."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:842
+msgid ""
+"This linked list is mostly ignored in later processing, causing all but one "
+"file or directory storage units on the same device to be ignored. See "
+"`TS-1869 <https://issues.apache.org/jira/browse/TS-1869>`_."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:845
+msgid ""
+"It is unclear to me how that can happen, as the offsets are computed later "
+"and should all be zero at the time the spans are coalesced, and as far as I "
+"can tell the sort / coalesce is only done during initialization."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:102
+msgid "cache directory"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:108
+msgid "directory entry"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:109
+msgid "fragment"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:110
+msgid "cache ID"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:267
+msgid "alternate"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:462
+msgid "DIR_DEPTH"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:462
+msgid "index segment"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:462
+msgid "index buckets"
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:26
+msgid ""
+"In addition to an HTTP proxy, |ATS| is also an HTTP cache. |TS| can cache "
+"any octet stream although it currently supports only those octet streams "
+"delivered by the HTTP protocol. When such a stream is cached (along with "
+"the HTTP protocol headers) it is termed an :term:`object <cache object>` in "
+"the cache. Each object is identified by a globally unique value called a :"
+"term:`cache key`."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:43
+msgid ""
+"The following sections describe how persistent cache data is structured. |"
+"TS| treats its persisent storage an undifferentiated collection of bytes, "
+"assuming no other structure to it. In particular it does not use the file "
+"system of the host operating system. If a file is used it is used only to "
+"mark out the set of bytes to be used."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:50
+msgid ""
+"The raw storage for the |TS| cache is configured in :file:`storage.config`. "
+"Each line in the file defines a :term:`cache span` which is treated as a "
+"uniform persistent store."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:58
+msgid ""
+"This storage organized in to a set of :term:`cache volume`\\ s which are "
+"defined in :file:`volume.config` for the purposes of the administrator. "
+"These are the units that used for all other administator level "
+"configuration."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:61
+msgid ""
+"Cache volumes can be defined by a percentage of the total storage or an "
+"absolute amount of storage. By default each cache volume is spread across "
+"all of the cache spans for robustness. The intersection of a cache volume "
+"and a cache span is a :term:`cache stripe`. Each cache span is divided in "
+"to cache stripes and each cache volume is a collection of those stripes."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:76
+msgid ""
+"Cache stripes are the fundamental unit of cache for the implementation. A "
+"cached object is stored entirely in a single stripe, and therefore in a "
+"single cache span - objects are never split across cache spans or volumes. "
+"Objects are assigned to a stripe (and hence to a cache volume) "
+"automatically based on a hash of the URI used to retrieve the object from "
+"the origin server. It is possible to configure this to a limited extent in :"
+"file:`hosting.config` which supports content from specific host or domain "
+"to be stored on specific cache volumes. In addition, as of version 4.0.1 it "
+"is possible to control which cache spans (and hence, which cache stripes) "
+"are contained in a specific cache volume."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:114
+msgid ""
+"Content in a stripe is tracked via a directory. We call each element of the "
+"directory a \"directory entry\" and each is represented by :cpp:class:"
+"`Dir`. Each entry refers to a chunk of contiguous storage in the cache. "
+"These are referred to variously as \"fragments\", \"segments\", \"docs\" / "
+"\"documents\", and a few other things. This document will use the term "
+"\"fragment\" as that is the most common reference in the code. The term "
+"\"Doc\" (for :cpp:class:`Doc`) will be used to refer to the header data for "
+"a fragment. Overall the directory is treated as a hash with the :term:"
+"`cache ID` as the key. See :ref:`directory probing <cache-directory-probe>` "
+"for how the cache ID is used to locate a directory entry. The cache ID is "
+"in turn computed from a :term:`cache key` which by default is the URL of "
+"the content."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:135
+msgid ""
+"Each entry stores an offset in the stripe and a size. The size stored in "
+"the directory entry is an :ref:`approximate size <dir-size>` which is at "
+"least as big as the actual data in the fragment. Exact size data is stored "
+"in the fragment header on disk."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:141
+msgid ""
+"Data in HTTP headers cannot be examined without disk I/O. This includes the "
+"original URL for the object. The cache key is not stored explicitly and "
+"therefore cannot be reliably retrieved."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:144
+msgid ""
+"The directory is a hash table that uses `chaining <http://en.wikibooks.org/"
+"wiki/Data_Structures/Hash_Tables#Collision_resolution>`_ for collision "
+"resolution. Because each entry is small they are used directly as the list "
+"header of the hash bucket."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:151
+msgid ""
+"Chaining is implemented by imposing grouping structures on the entries in a "
+"directory. The first level grouping is a :term:`directory bucket`. This is "
+"a fixed number (currently 4 - defined as ``DIR_DEPTH``) of entries. This "
+"serves to define the basic hash buckets with the first entry in each cache "
+"bucket serving as the root of the hash bucket."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:158
+msgid ""
+"The term \"bucket\" is used in the code to mean both the conceptual bucket "
+"for hashing and for a structural grouping mechanism in the directory and so "
+"these will be qualified as needed to distinguish them. The unqualified term "
+"\"bucket\" is almost always used to mean the structural grouping in the "
+"directory."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:162
+msgid ""
+"Directory buckets are grouped in to :term:`segments <directory segment>`. "
+"All segments in a stripe have the same number of buckets. The number of "
+"segments in a stripe is chosen so that each segment has as many buckets as "
+"possible without exceeding 65535 (2\\ :sup:`16`\\ -1) entries in a segment."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:169
+msgid ""
+"Each directory entry has a previous and next index value which is used to "
+"link entries in the same segment. Because no segment has more than 65535 "
+"entries 16 bits suffices for storing the index values. The stripe header "
+"contains an array of entry indices which are used as the roots of entry "
+"free lists, one for each segment. Active entries are stored via the bucket "
+"structure. When a stripe is initialized the first entry in each bucket is "
+"zeroed (marked unused) and all other entries are put in the corresponding "
+"segment free list in the stripe header. This means the first entry of each "
+"directory bucket is used as the root of a hash bucket and is therefore "
+"marked unused rather than being put a free list. The other entries in the "
+"directory bucket are preferentially preferred for adding to the "
+"corresponding hash bucket but this is not required. The segment free lists "
+"are initialized such that the extra bucket entries are added in order - all "
+"the seconds, then the thirds, then the fourths. Because the free lists are "
+"FIFOs this means extra entries will be selected from the fourth entries "
+"across all the buckets first, then the thirds, etc. When allocating a new "
+"directory entry in a bucket the entries are searched from first to last, "
+"which maximizes bucket locality (that is, cache IDs that map to the same "
+"hash bucket will also tend to use the same directory bucket)."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:185
+msgid ""
+"Entries are removed from the free list when used and returned when no "
+"longer in use. When a fragment needs to be put in to the directory the "
+"cache ID is used to locate a hash bucket (which also determines the segment "
+"and directory bucket). If the first entry in the directory bucket is marked "
+"unused, it is used. If not then the other entries in the bucket are "
+"searched and if any are on the free list, that entry is used. If none are "
+"available then the first entry on the segment free list is used. This entry "
+"is attached to the hash bucket via the same next and previous indices used "
+"for the free list so that it can be found when doing a lookup of a cache ID."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:575
+msgid ""
+"The cache stripe directory :ref:`is probed <cache-directory-probe>` using "
+"the index key computed from the cache key."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:797
+msgid ""
+"After creating all the `Span` instances they are grouped by device id to "
+"internal linked lists attached to the :cpp:member:`Store::disk` array [#]_. "
+"Spans that refer to the same directory, disk, or raw device are coalesced "
+"in to a single span. Spans that refer to the same file with overlapping "
+"offsets are also coalesced [#]_. This is all done in :c:func:"
+"`ink_cache_init()` called during startup."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:802
+msgid ""
+"The span logic is also used by the HostDB and more than one otherwise "
+"inexplicable feature is provided by the span logic for that module."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:807
+msgid ""
+"For each valid span, an instance of :cpp:class:`CacheDisk` is created. This "
+"class is a continuation and so can be used to perform potentially blocking "
+"operations on the span. The primary use of these is to be passed to the AIO "
+"threads as the callback when an I/O operation completes. These are then "
+"dispatched to AIO threads to perform storage unit initialization. After all "
+"of those have completed, the resulting storage is distributed across the "
+"volumes in :c:func:`cplist_reconfigure`. The :cpp:class:`CacheVol` "
+"instances are created at this time."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:813
+msgid ""
+"Cache stripe assignment setup is done once all stripes have initialized "
+"(that is, the stripe header information has been successfully read from "
+"disk for all stripes). The assignment information is stored as an array of "
+"indices. These are indices in to an array of stripes. Both the assignment "
+"and the stripe arrays are stored in an instance of :cpp:class:"
+"`CacheHostRecord`. Assignment initialization consists of populating the "
+"assignment array which is much larger than the stripe array."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:819
+msgid ""
+"There is an instance of :cpp:class:`CacheHostRecord` for each line in :file:"
+"`hosting.config` and one \"generic\" record. For the configured instances "
+"the set of stripes is determined from the cache volume specified in the "
+"line. If no lines are specified all stripes are placed in the generic "
+"record, otherwise only those stripes marked as default are placed in the "
+"generic record."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:822
+msgid ""
+"If hosting records are specified it is an error to not specify at least one "
+"default cache volume."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:824
+msgid ""
+"The assignment table is initialized in :c:func:`build_vol_hash_table` which "
+"is called for each :cpp:class:`CacheHostRecord` instance. For each strip in "
+"the host record a sequence of pseudo-random numbers is generated, starting "
+"with the folded hash of the stripe hash identifier, which is the device "
+"path followed by the skip and size values for that stripe, making it "
+"unique. This also makes the sequence deterministic for any particular "
+"stripe. Each stripe gets one number in its sequence for every "
+"`VOL_HASH_ALLOC_SIZE` (8 MB currently) of storage. These numbers are paired "
+"with the stripe index, combined across all stripes, then sorted by the "
+"random values. The resulting array is sampled for every slot in the stripe "
+"assignment table by dividing the maximum random value by the size of the "
+"assignment table and using the value midway between each multiple of the "
+"result of the division. The coalesced psuedo-random sequence is scanned for "
+"each sample in turn and the first number not greater than the sample is "
+"found. The stripe associated with that value is used for that assignment "
+"table entry."
+msgstr ""
+
+#: ../../arch/cache/cache-arch.en.rst:835
+msgid ""
+"While this procedure is determinstic it is sensitive to initial conditions, "
+"including the size of each stripe."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/cache-data-structures.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-data-structures.en.po
new file mode 100644
index 00000000..55a8669c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/cache-data-structures.en.po
@@ -0,0 +1,288 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/cache-data-structures.en.rst:19
+msgid "Cache Data Structures"
+msgstr "キャッシュデータ構造"
+
+#: ../../arch/cache/cache-data-structures.en.rst:25
+msgid ""
+"An open directory entry. It contains all the information of a :cpp:class:"
+"`Dir` plus additional information from the first :cpp:class:`Doc`."
+msgstr ""
+"オープンされたディレクトリエントリ。 :cpp:class:`Dir` と、それに加えて 先頭"
+"の :cpp:class:`Doc` の全情報を含みます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:29
+msgid "A virtual connection class which accepts input for writing to cache."
+msgstr "キャッシュへ書込む入力を受け付ける仮想接続クラス。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:33
+msgid "Do the initial read for a cached object."
+msgstr "キャッシュされたオブジェクトの初回の読込みを実行します。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:37
+msgid "Do the initial read for an alternate of an object."
+msgstr "オブジェクトの代替の初回の読込みを実行します。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:41
+msgid ""
+"Data transfer driver. This contains a set of *producers*. Each producer is "
+"connected to one or more *consumers*. The tunnel handles events and buffers "
+"so that data moves from producers to consumers. The data, as much as "
+"possible, is kept in reference counted buffers so that copies are done only "
+"when the data is modified or for sources (which acquire data from outside |"
+"TS|) and sinks (which move data to outside |TS|)."
+msgstr ""
+"データ転送ドライバ。これは *プロデューサ* のセットを含みます。各プロデューサ"
+"は一つ以上の *コンシューマ* に接続されます。トンネルは、プロデューサからコン"
+"シューマへデータを移動させる為に、イベントとバッファを扱います。データは、"
+"データが修正される時のみ、またはソース(|TS| の外からデータを取得するもの)と"
+"シンク(|TS| の外へデータを移動するもの)のためにコピーが実行されるため、可能"
+"な限り参照カウントバッファに維持されます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:45
+msgid "Holds the data from a line in :file:`cache.config`."
+msgstr ":file:`cache.config` のある行からデータを保持します。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:49
+msgid ""
+"Defined in |P-CacheHttp.h|_. This is an array of :cpp:class:`HTTPInfo` "
+"objects and serves as the respository of information about alternates of an "
+"object. It is marshaled as part of the metadata for an object in the cache."
+msgstr ""
+"|P-CacheHttp.h|_ で定義されます。これは :cpp:class:`HTTPInfo` オブジェクトの"
+"配列であり、オブジェクトの代替に関する情報のリポジトリとして提供します。それ"
+"はキャッシュ内のオブジェクトのメタデータ部分に配置されます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:53
+#: ../../arch/cache/cache-data-structures.en.rst:63
+msgid "Defined in |HTTP.h|_."
+msgstr "|HTTP.h|_ で定義されます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:55
+msgid ""
+"This class is a wrapper for :cpp:class:`HTTPCacheAlt`. It provides the "
+"external API for accessing data in the wrapped class. It contains only a "
+"pointer (possibly ``NULL``) to an instance of the wrapped class."
+msgstr ""
+"このクラスは :cpp:class:`HTTPCacheAlt` のラッパーです。ラップされたクラス内"
+"のデータへのアクセスのための外部 API を提供します。ラップされたクラスのイン"
+"スタンスへのポインター(``NULL`` の可能性がある)のみ保持します。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:59
+msgid "A typedef for :cpp:class:`HTTPInfo`."
+msgstr ":cpp:class:`HTTPInfo` の typedef 。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:65
+msgid ""
+"This is the metadata for a single alternate for a cached object. In "
+"contains among other data"
+msgstr ""
+"キャッシュオブジェクトの単一の代替のメタデータです。下記の他データを含みま"
+"す。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:67
+msgid "The key for the earliest ``Doc`` of the alternate."
+msgstr "代替の earliest ``Doc`` のキー。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:68
+msgid "The request and response headers."
+msgstr "リクエストヘッダとレスポンスヘッダ。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:69
+msgid "The fragment offset table. [#]_"
+msgstr "フラグメントオフセットテーブル。 [#]_"
+
+#: ../../arch/cache/cache-data-structures.en.rst:70
+msgid "Timestamps for request and response from origin server."
+msgstr "オリジンサーバからのリクエストとレスポンスのタイムスタンプ。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:74
+msgid "Record for evacuation."
+msgstr "退避のためのレコード。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:78
+msgid "This represents a storage unit inside a cache volume."
+msgstr "キャッシュボリューム内においてストレージユニットを表します。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:82
+msgid ""
+"The number of segments in the volume. This will be roughly the total number "
+"of entries divided by the number of entries in a segment. It will be "
+"rounded up to cover all entries."
+msgstr ""
+"ボリュームのセグメント数。セグメント内のエントリ数で分割されたエントリのおお"
+"よその合計数。全エントリをカバーするように丸め込まれます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:86
+msgid ""
+"The number of buckets in the volume. This will be roughly the number of "
+"entries in a segment divided by ``DIR_DEPTH``. For currently defined values "
+"this is around 16,384 (2^16 / 4). Buckets are used as the targets of the "
+"index hash."
+msgstr ""
+"ボリュームのバケット数。 ``DIR_DEPTH`` で分割されるセグメント内のおおよその"
+"エントリ数。現在は約 16,384 (2^16 / 4) で定義されます。バケットはインデック"
+"スハッシュの対象として使用されます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:90
+msgid ""
+"Array of of :cpp:class:`EvacuationBlock` buckets. This is sized so there is "
+"one bucket for every evacuation span."
+msgstr ""
+":cpp:class:`EvacuationBlock` バケットの配列。これは、退避スパンごとに一つの"
+"バケットを持つようなサイズになります。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:94
+msgid "Length of stripe in bytes."
+msgstr "バイト単位のストライプ長。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:98
+msgid ""
+"Start an evacuation if there is any :cpp:class:`EvacuationBlock` in the "
+"range from *low* to *high*. Return 0 if no evacuation was started, non-zero "
+"otherwise."
+msgstr ""
+"*low* から *high* の範囲に任意の :cpp:class:`EvacuationBlock` がある場合、退"
+"避を開始します。退避が開始されなかった場合は 0 を、それ以外は非 0 を返しま"
+"す。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:102
+msgid "A cache volume as described in :file:`volume.config`."
+msgstr ":file:`volume.config` で記述されるキャッシュボリューム。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:106
+msgid "Defined in |P-CacheVol.h|_."
+msgstr "|P-CacheVol.h|_ で定義されます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:110
+msgid "Validity check value. Set to ``DOC_MAGIC`` for a valid document."
+msgstr ""
+"正当性チェック値。正当なドキュメントには ``DOC_MAGIC`` が設定されます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:114
+msgid ""
+"The length of this segment including the header length, fragment table, and "
+"this structure."
+msgstr ""
+"ヘッダ長、フラグメントテーブル、この構造体を含む、このセグメントの長さ。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:118
+msgid ""
+"Total length of the entire document not including meta data but including "
+"headers."
+msgstr "メタデータを含まない、ヘッダを含むドキュメント全体の長さ。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:122
+msgid ""
+"First index key in the document (the index key used to locate this object "
+"in the volume index)."
+msgstr ""
+"ドキュメントの最初のインデックスキー。（インデックスキーはボリュームインデッ"
+"クスにおいてこのオブジェクトを見つけるのに使用されます。)"
+
+#: ../../arch/cache/cache-data-structures.en.rst:126
+msgid ""
+"The index key for this fragment. Fragment keys are computationally chained "
+"so that the key for the next and previous fragments can be computed from "
+"this key."
+msgstr ""
+"このフラグメントのインデックスキー。前後のフラグメントのキーがこのキーから計"
+"算出来るように、フラグメントキーは計算的に繋がっています。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:130
+msgid ""
+"Document header (metadata) length. This is not the length of the HTTP "
+"headers."
+msgstr "ドキュメントヘッダ(メタデータ)長。 HTTP ヘッダの長さではありません。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:134
+msgid ""
+"Fragment type. Currently only `CACHE_FRAG_TYPE_HTTP` is used. Other types "
+"may be used for cache extensions if those are ever used / implemented."
+msgstr ""
+"フラグメントタイプ。現在、 `CACHE_FRAG_TYPE_HTTP` のみ使用されます。キャッ"
+"シュ拡張がいつか使用/実装されれば、他のタイプが使用されるかもしれません。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:138
+msgid ""
+"Fragment table length, if any. Only the first ``Doc`` in an object should "
+"contain a fragment table."
+msgstr ""
+"もしあるなら、フラグメントテーブル長。オブジェクトの、先頭の ``Doc`` のみが"
+"フラグメントテーブルを持つべきです。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:140
+msgid ""
+"The fragment table is a list of offsets relative to the HTTP content (not "
+"counting metadata or HTTP headers). Each offset is the byte offset of the "
+"first byte in the fragment. The first element in the table is the second "
+"fragment (what would be index 1 for an array). The offset for the first "
+"fragment is of course always zero and so not stored. The purpose of this is "
+"to enable a fast seek for range requests - given the first ``Doc`` the "
+"fragment containing the first byte in the range can be computed and loaded "
+"directly without further disk access."
+msgstr ""
+"フラグメントテーブルは、 HTTP コンテンツ(メタデータや HTTP ヘッダは含みませ"
+"ん)に関係したオフセットのリストです。各オフセットは、フラグメントの最初のバ"
+"イトのバイトオフセットです。テーブルの最初の要素は、二番目のフラグメントで"
+"す。(配列のインデックス 1 となるでしょう) 最初のフラグメントのオフセットはも"
+"ちろん常にゼロであり、保存されません。この目的は、レンジリクエストの高速な検"
+"索を可能にすることです。先頭の ``Doc`` が指定されると、範囲の最初のバイトを"
+"含むフラグメントはそれ以上のディスクアクセス無しに、直接計算して読み込むこと"
+"ができます。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:142
+msgid "Removed as of version 3.3.0."
+msgstr "バージョン 3.3.0 で削除されました。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:146
+#: ../../arch/cache/cache-data-structures.en.rst:150
+msgid "Unknown."
+msgstr "不明。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:154
+msgid "Flag and timer for pinned objects."
+msgstr "ピン留めされたオブジェクトのフラグとタイマー。"
+
+#: ../../arch/cache/cache-data-structures.en.rst:158
+msgid "Unknown. (A checksum of some sort)"
+msgstr "不明。(何らかのチェックサム)"
+
+#: ../../arch/cache/cache-data-structures.en.rst:163
+msgid "Footnotes"
+msgstr "脚注"
+
+#: ../../arch/cache/cache-data-structures.en.rst:164
+msgid ""
+"Changed in version 3.2.0. This previously resided in the first ``Doc`` but "
+"that caused different alternates to share the same fragment table."
+msgstr ""
+"バージョン 3.2.0 で変更されました。以前は先頭の ``Doc`` 内で持ちましたが、同"
+"一フラグメントテーブルを共有するために異なる代替を引き起こしました。"
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/cache.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/cache.en.po
new file mode 100644
index 00000000..982a8883
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/cache.en.po
@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/cache.en.rst:19
+msgid "Apache Traffic Server Cache"
+msgstr ""
+
+#: ../../arch/cache/cache.en.rst:21
+msgid "Contents:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/ram-cache.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/ram-cache.en.po
new file mode 100644
index 00000000..e66111b6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/ram-cache.en.po
@@ -0,0 +1,271 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/ram-cache.en.rst:22
+msgid "Ram Cache"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:25
+msgid "New Ram Cache Algorithm (CLFUS)"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:27
+msgid ""
+"The new Ram Cache uses ideas from a number of cache replacement policies "
+"and algorithms, including LRU, LFU, CLOCK, GDFS and 2Q, called CLFUS "
+"(Clocked Least Frequently Used by Size). It avoids any patented algorithms "
+"and includes the following features:"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:29
+msgid ""
+"Balances Recentness, Frequency and Size to maximize hit rate (not byte hit "
+"rate)."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:30
+msgid ""
+"Is Scan Resistant and extracts robust hit rates even when the working set "
+"does not fit in the Ram Cache."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:31
+msgid ""
+"Supports compression at 3 levels fastlz, gzip(libz), and xz(liblzma).  "
+"Compression can be moved to another thread."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:32
+msgid ""
+"Has very low CPU overhead, only little more than a basic LRU.  Rather than "
+"using an O(lg n) heap, it uses a probabilistic replacement policy for O(1) "
+"cost with low C."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:33
+msgid ""
+"Has relatively low memory overhead of approximately 200 bytes per object in "
+"memory."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:35
+msgid ""
+"The rational for emphasizing hit rate over byte hit rate is that the "
+"overhead of pulling more bytes from secondary storage is low compared to "
+"the cost of a request."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:37
+msgid ""
+"The Ram Cache consists of an object hash fronting 2 LRU/CLOCK lists and a "
+"\"Seen\" hash table.  The first \"Cached\" list contains objects in memory "
+"while the second contains a \"History\" of objects which have either "
+"recently been in memory or are being considered for keeping in memory.  The "
+"\"Seen\" hash table is used to make the algorithm scan resistant."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:39
+msgid "The list entries record the following information:"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:41
+msgid "key - 16 byte unique object identifier"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:42
+msgid ""
+"auxkeys - 8 bytes worth of version number (in our system the block in the "
+"partition).  When the version of an object changes old entries are purged "
+"from the cache."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:43
+msgid "hits - number of hits within this clock period"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:44
+msgid "size - the size of the object in the cache"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:45
+msgid ""
+"len - the actual length of the object (differs from size because of "
+"compression and padding)"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:46
+msgid "compressed_len - the compressed length of the object"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:47
+msgid "compressed (none, fastlz, libz, liblzma)"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:48
+msgid "uncompressible (flag)"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:49
+msgid ""
+"copy - whether or not this object should be copied in and copied out (e.g. "
+"HTTP HDR)"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:50
+msgid "LRU link"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:51
+msgid "HASH link"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:52
+msgid "IOBufferData (smart point to the data buffer)"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:55
+msgid ""
+"The interface to the cache is Get and Put operations.  Get operations check "
+"if an object is in the cache and are called on a read attempt.  The Put "
+"operation decides whether or not to cache the provided object in memory.  "
+"It is called after a read from secondary storage."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:58
+msgid "Seen Hash"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:60
+msgid ""
+"The Seen List becomes active after the Cached and History lists become full "
+"after a cold start.  The purpose is to make the cache scan resistant which "
+"means that the cache state must not be effected at all by a long sequence "
+"Get and Put operations on objects which are seen only once.  This is "
+"essential, without it not only would the cache be polluted, but it could "
+"lose critical information about the objects that it cares about.  It is "
+"therefore essential that the Cache and History lists are not effected by "
+"Get or Put operations on objects seen the first time.  The Seen Hash "
+"maintains a set of 16 bit hash tags, and requests which do not hit in the "
+"object cache (are in the Cache List or History List) and do not match the "
+"hash tag result in the hash tag begin updated but are otherwise ignored. "
+"The Seen Hash is sized to approximately the number of objects in the cache "
+"in order to match the number that are passed through it with the CLOCK rate "
+"of the Cached and History Lists."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:63
+msgid "Cached List"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:65
+msgid ""
+"The Cached list contains objects actually in memory.  The basic operation "
+"is LRU with new entries inserted into a FIFO (queue) and hits causing "
+"objects to be reinserted.  The interesting bit comes when an object is "
+"being considered for insertion.  First we check if the Object Hash to see "
+"if the object is in the Cached List or History.  Hits result in updating "
+"the \"hit\" field and reinsertion.  History hits result in the \"hit\" "
+"field being updated and a comparison to see if this object should be kept "
+"in memory.  The comparison is against the least recently used members of "
+"the Cache List, and is based on a weighted frequency::"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:69
+msgid ""
+"A new object must beat enough bytes worth of currently cached objects to "
+"cover itself.  Each time an object is considered for replacement the CLOCK "
+"moves forward.  If the History object has a greater value then it is "
+"inserted into the Cached List and the replaced objects are removed from "
+"memory and their list entries are inserted into the History List.  If the "
+"History object has a lesser value it is reinserted into the History List.  "
+"Objects considered for replacement (at least one) but not replaced have "
+"their \"hits\" field set to zero and are reinserted into the Cached List.  "
+"This is the CLOCK operation on the Cached List."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:72
+msgid "History List"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:74
+msgid ""
+"Each CLOCK the least recently used entry in the History List is dequeued "
+"and if the \"hits\" field is not greater than 1 (it was hit at least once "
+"in the History or Cached List) it is deleted, otherwise the \"hits\" is set "
+"to zero and it is requeued on the History List."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:77
+msgid "Compression/Decompression"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:79
+msgid ""
+"Compression is performed by a background operation (currently called as "
+"part of Put) which maintains a pointer into the Cached List and runs toward "
+"the head compressing entries.  Decompression occurs on demand during a "
+"Get.  In the case of objects tagged \"copy\" the compressed version is "
+"reinserted in the LRU since we need to make a copy anyway.  Those not "
+"tagged \"copy\" are inserted uncompressed in the hope that they can be "
+"reused in uncompressed form.  This is a compile time option and may be "
+"something we want to change."
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:81
+msgid ""
+"There are 3 algorithms and levels of compression (speed on 1 thread i7 "
+"920) :"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:83
+msgid ""
+"fastlz: 173 MB/sec compression, 442 MB/sec decompression : basically free "
+"since disk or network will limit first, ~53% final size"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:84
+msgid ""
+"libz: 55 MB/sec compression, 234 MB/sec decompression : almost free, "
+"particularly decompression, ~37% final size"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:85
+msgid ""
+"liblzma: 3 MB/sec compression, 50 MB/sec decompression : expensive, ~27% "
+"final size"
+msgstr ""
+
+#: ../../arch/cache/ram-cache.en.rst:87
+msgid ""
+"These are ballpark numbers, and your millage will vary enormously.  JPEG "
+"for example will not compress with any of these. The RamCache does detect "
+"compression level and will declare something \"incompressible\" if it "
+"doesn't get below 90% of the original size. This value is cached so that "
+"the RamCache will not attempt to compress it again (at least as long as it "
+"is in the history)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/cache/tier-storage.en.po b/doc/locale/ja/LC_MESSAGES/arch/cache/tier-storage.en.po
new file mode 100644
index 00000000..aea6dae1
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/cache/tier-storage.en.po
@@ -0,0 +1,224 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/cache/tier-storage.en.rst:20
+msgid "Tiered Storage Design"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:26
+msgid "Introduction"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:28
+msgid ""
+"Tiered storage is an attempt to allow |TS| to take advantage of physical "
+"storage with different properties. This design concerns only mechanism. "
+"Policies to take advantage of these are outside of the scope of this "
+"document. Instead we will presume an *oracle* which implements this policy "
+"and describe the queries that must be answered by the oracle and the "
+"effects of the answers."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:33
+msgid ""
+"Beyond avoiding question of tier policy the design is also intended to be "
+"effectively identical to current operations for the case where there is "
+"only one tier."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:36
+msgid ""
+"The most common case for tiers is an ordered list of tiers, where higher "
+"tiers are presumed faster but more expensive (or more limited in capacity). "
+"This is not required. It might be that different tiers are differentiated "
+"by other properties (such as expected persistence). The design here is "
+"intended to handle both cases."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:46
+msgid "Configuration"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:48
+msgid ""
+"Each storage unit in :file:`storage.config` can be marked with a *quality* "
+"value which is 32 bit number. Storage units that are not marked are all "
+"assigned the same value which is guaranteed to be distinct from all "
+"explicit values. The quality value is arbitrary from the point of view of "
+"this design, serving as a tag rather than a numeric value. The user (via "
+"the oracle) can impose what ever additional meaning is useful on this value "
+"(rating, bit slicing, etc.). In such cases all volumes should be explicitly "
+"assigned a value, as the default / unmarked value is not guaranteed to have "
+"any relationship to explicit values. The unmarked value is intended to be "
+"useful in situations where the user has no interest in tiered storage and "
+"so wants to let Traffic Server automatically handle all volumes as a single "
+"tier."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:58
+msgid "Operations"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:60
+msgid ""
+"After a client request is received and processed, volume assignment is "
+"done. This would be changed to do volume assignment across all tiers "
+"simultaneously. For each tier the oracle would return one of four values "
+"along with a volume pointer."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:63
+msgid "`READ`"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:63
+msgid "The tier appears to have the object and can serve it."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:66
+msgid "`WRITE`"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:66
+msgid ""
+"The object is not in this tier and should be written to this tier if "
+"possible."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:69
+msgid "`RW`"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:69
+msgid ""
+"Treat as `READ` if possible but if the object turns out to not in the cache "
+"treat as `WRITE`."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:72
+msgid "`NO_SALE`"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:72
+msgid "Do not interact with this tier for this object."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:74
+msgid ""
+"The volume returned for the tier must be a volume with the corresponding "
+"tier quality value. In effect the current style of volume assignment is "
+"done for each tier, by assigning one volume out of all of the volumes of "
+"the same quality and returning one of `RW` or `WRITE` depending on whether "
+"the initial volume directory lookup succeeds. Note that as with current "
+"volume assignment it is presumed this can be done from in memory structures "
+"(no disk I/O required)."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:79
+msgid ""
+"If the oracle returns `READ` or `RW` for more than one tier, it must also "
+"return an ordering for those tiers (it may return an ordering for all "
+"tiers, ones that are not readable will be ignored). For each tier, in that "
+"order, a read of cache storage is attempted for the object. A successful "
+"read locks that tier as the provider of cached content. If no tier has a "
+"successful read, or no tier is marked `READ` or `RW` then it is a cache "
+"miss. Any tier marked `RW` that fails the read test is demoted to `WRITE`."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:85
+msgid ""
+"If the object is cached every tier that returns `WRITE` receives the object "
+"to store in the selected volume (this includes `RW` returns that are "
+"demoted to `WRITE`). This is a cache to cache copy, not from the origin "
+"server. In this case tiers marked `RW` that are not tested for read will "
+"not receive any data and will not be further involved in the request "
+"processing."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:90
+msgid ""
+"For a cache miss, all tiers marked `WRITE` will receive data from the "
+"origin server connection (if successful)."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:92
+msgid ""
+"This means, among other things, that if there is a tier with the object all "
+"other tiers that are written will get a local copy of the object, the "
+"origin server will not be used. In terms of implementation, currently a "
+"cache write to a volume is done via the construction of an instance of "
+"`CacheVC` which recieves the object stream. For tiered storage the same "
+"thing is done for each target volume."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:97
+msgid ""
+"For cache volume overrides (e.g. via :file:`hosting.config`) this same "
+"process is used except with only the volumes stripes contained within the "
+"specified cache volume."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:102
+msgid "Copying"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:104
+msgid ""
+"It may be necessary to provide a mechanism to copy objects between tiers "
+"outside of a client originated transaction. In terms of implementation this "
+"is straight forward using `HttpTunnel` as if in a transaction only using a "
+"`CacheVC` instance for both the producer and consumer. The more difficult "
+"question is what event would trigger a possible copy. A signal could be "
+"provided whenever a volume directory entry is deleted although it should be "
+"noted that the object in question may have already been evicted when this "
+"event happens."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:112
+msgid "Additional Notes"
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:114
+msgid ""
+"As an example use, it would be possible to have only one cache volume that "
+"uses tiered storage for a particular set of domains using volume tagging. :"
+"file:`hosting.config` would be used to direct those domains to the selected "
+"cache volume. The oracle would check the URL in parallel and return "
+"`NO_SALE` for the tiers in the target cache volume for other domains. For "
+"the other tier (that of the unmarked storage units) the oracle would return "
+"`RW` for the tier in all cases as that tier would not be queried for the "
+"target domains."
+msgstr ""
+
+#: ../../arch/cache/tier-storage.en.rst:40
+msgid ""
+"The design presumes that if a user has multiple tiers of storage and an "
+"ordering for those tiers, they will usually want content stored at one tier "
+"level to also be stored at every other lower level as well, so that it does "
+"not have to be copied if evicted from a higher tier."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/hacking/index.en.po b/doc/locale/ja/LC_MESSAGES/arch/hacking/index.en.po
new file mode 100644
index 00000000..f3fed527
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/hacking/index.en.po
@@ -0,0 +1,42 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-02-05 23:44+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/hacking/index.en.rst:2
+msgid "Hacking"
+msgstr ""
+
+#: ../../arch/hacking/index.en.rst:22
+msgid "Introduction"
+msgstr ""
+
+#: ../../arch/hacking/index.en.rst:24
+msgid ""
+"This is a documentation stub on how to hack Apache Traffic Server. Here we "
+"try to document things such as how to write and run unit or regression "
+"tests or how to inspect the state of the core with a debugger."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/arch/index.en.po b/doc/locale/ja/LC_MESSAGES/arch/index.en.po
new file mode 100644
index 00000000..9aaf9b9f
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/index.en.po
@@ -0,0 +1,62 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/index.en.rst:22
+msgid "Introduction"
+msgstr "導入"
+
+#: ../../arch/index.en.rst:30
+msgid "Contents:"
+msgstr "内容:"
+
+#: ../../arch/index.en.rst:2
+msgid "Architecture and Hacking"
+msgstr "アーキテクチャとハッキング"
+
+#: ../../arch/index.en.rst:24
+#, fuzzy
+msgid ""
+"The original architectural documents for Traffic Server were lost in the "
+"transition to an open source project. The documents in this section are "
+"provisional and were written based on the existing code. The purpose is to "
+"have a high level description of aspects of Traffic Server to better inform "
+"ongoing work."
+msgstr ""
+"Traffic Server のオリジナルのアーキテクチャに関するドキュメントは、オープ"
+"ンソースプロジェクトへの移行時に失われました。このセクションのドキュメン"
+"トは暫定的なものであり、既存のコードを元に書かれています。このドキュメン"
+"トの目的は進行中の作業をより知らせるため、 Traffic Server の側面の高度な"
+"説明をすることです。"
+
+#: ../../arch/index.en.rst:28
+msgid ""
+"In the final section on \"hacking\" we try to document our approaches to "
+"understanding and modifying the source."
+msgstr ""
+"最終章の\"ハッキング\"ではソースを理解し変更するためのアプローチについて"
+"記載します。"
diff --git a/doc/locale/ja/LC_MESSAGES/arch/proposals/hostdb.en.po b/doc/locale/ja/LC_MESSAGES/arch/proposals/hostdb.en.po
new file mode 100644
index 00000000..d3648fcc
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/arch/proposals/hostdb.en.po
@@ -0,0 +1,372 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../arch/proposals/hostdb.en.rst:2
+msgid "Host Resolution"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:22
+msgid "Introduction"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:24
+msgid ""
+"The current mechanism for resolving host names to IP addresses for Traffic "
+"Server is contained the HostDB and DNS libraries. These take hostnames and "
+"provide IP addresses for them."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:27
+msgid ""
+"The current implementation is generally considered inadequate, both from a "
+"functionality point of view and difficulty in working with it in other "
+"parts of Traffic Server. As Traffic Server is used in more complex "
+"situtations this inadequacy presents increasing problems."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:32
+msgid "Goals"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:34
+msgid ""
+"Updating the host name resolution (currently referred to as \"HostDB\") has "
+"several functions goals"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:36
+msgid "Enable additional processing layers to be easily added."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:37
+msgid "Enable plugins to directly access the name resolution logic"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:38
+msgid "Enable plugins to provide name resolution"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:39
+msgid "Asynchronous (immediate resolve or callback on block)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:40
+msgid ""
+"Minimize allocations -- in particular no allocations for cached resolutions"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:41
+msgid ""
+"Simplify interactions with the resolution, particularly with regard to "
+"nameservers, origin server failover, and address family handling."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:44
+msgid ""
+"It is also necessary to support a number of specific features that are "
+"either currently available or strongly desired."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:46
+msgid "SplitDNS or its equivalent"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:47
+msgid "Use of a hosts file (e.g. ``/etc/hosts``)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:48
+msgid "Simultaneous IPv4 and IPv6 queries"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:49
+msgid "IP family control"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:50
+msgid ""
+"Negative caching *  Server connection failures *  Query failures *  "
+"Nameserver failures."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:54
+msgid "Address validity time out control"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:55
+msgid "Address round robin support"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:56
+msgid "SRV record support (weighted records)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:57
+msgid "Nameserver round robin"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:58
+msgid "Plugin access to nameserver data (add, remove, enumerate)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:59
+msgid "Plugin provision of resolvers."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:60
+msgid "Hooks for plugin detection / recovery from resolution events."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:62
+msgid ""
+"One issue is persistence of the cached resolutions. This creates problems "
+"for the current implementation (because of size limits it imposes on the "
+"cached data) but also allows for quicker restarts in a busy environment."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:66
+msgid "Basics"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:68
+msgid ""
+"The basic design is to separate the functionality into chainable layers so "
+"that a resolver with the desired attributes can be assembled from those "
+"layers. The core interface is that of a lazy iterator. This object returns "
+"one of four results when asked for an address"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:72
+msgid "An IP address"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:73
+msgid "Done(no more addresses are available)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:74
+msgid "Wait(an address may be available in the future)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:75
+msgid "Fail (no address is available and none will be so in the future)"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:77
+msgid ""
+"Each layer (except the bottom) uses this API and also provides it. This "
+"enables higher level logic such as the state machine to simply use the "
+"resolver as a list without having to backtrack states in the case of "
+"failures, or have special cases for different resolution sources."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:81
+msgid ""
+"To perform a resolution, a client creates a query object (potentially on "
+"the stack), initializes it with the required data (at least the hostname) "
+"and then starts the resolution. Methods on the query object allow its state "
+"and IP address data to be accessed."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:86
+msgid "Required Resolvers"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:90
+msgid "Nameserver"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:89
+msgid ""
+"A bottom level resolver that directly queries a nameserver for DNS data. "
+"This contains much of the functionality currently in the ``iocore/dns`` "
+"directory."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:94
+msgid "SplitDNS"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:93
+msgid ""
+"A resolver that directs requests to one of several resolvers. To emulate "
+"current behavior these would be Nameserver instances."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:98
+msgid "NameserverGroup"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:97
+msgid ""
+"A grouping mechanism for Nameserver instances that provides failover, round "
+"robin, and ordering capabilities. It may be reasonable to merge this with "
+"the SplitDNS resolver."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:101
+msgid "HostFile"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:101
+msgid "A resolver that uses a local file to resolve names."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:105
+msgid "AddressCache"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:104
+msgid ""
+"A resolver that also has a cache for resolution results. It requires "
+"another resolver instance to perform the actual resolution."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:109
+msgid "Preloaded"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:108
+msgid ""
+"A resolver that can contain one or more explicitly set IP addresses which "
+"are returned. When those are exhausted it falls back to another resolver."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:112
+msgid "Configuration"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:114
+msgid ""
+"To configuration the resolution, each resolver would be assigned a tag. It "
+"is not, however, sufficient to simply provide the list of resolver tags "
+"because some resolvers require additional configuration. Unfortunately this "
+"will likely require a separate configuration file outside of :file:`records."
+"config`, although we would be able to remove :file:`splitdns.config`. In "
+"this case we would need chain start / end markers around a list of resolver "
+"tags. Each tag would the be able to take additional resolver configuration "
+"data. For instance, for a SplitDNS resolver the nameservers."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:121
+msgid "Examples"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:123
+msgid ""
+"Transparent operations would benefit from the *Preloaded* resolver. This "
+"would be loaded with the origin host address provided by the client "
+"connection. This could be done early in processing and then no more logic "
+"would be required to skip DNS processing as it would happen without "
+"additional action by the state machine. It would handle the problem of de "
+"facto denial of service if an origin server becomes unavailable in that "
+"configuration, as *Preloaded* would switch to alternate addresses "
+"automatically."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:129
+msgid ""
+"Adding host file access would be easier as well, as it could be done in a "
+"much more modular fashion and then added to the stack at configuration "
+"time. Whether such addresses were cached would be controlled by chain "
+"arrangement rather yet more configuration knobs."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:133
+msgid ""
+"The default configuration would be *Preloaded* : *AddressCache* : "
+"*Nameserver*."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:135
+msgid ""
+"In all cases the state machine makes requests against the request object to "
+"get IP addresses as needed."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:138
+msgid "Issues"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:141
+msgid "Request object allocation"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:143
+msgid ""
+"The biggest hurdle is being able to unwind a resolver chain when a block is "
+"encountered. There are some ways to deal with this."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:145
+msgid ""
+"1) Set a maximum resolver chain length and declare the request instance so "
+"that there is storage for state for that many resolvers. If needed and "
+"additional value of maximum storage per chain could be set as well. The "
+"expected number of elements in a chain is expected to be limited, 10 would "
+"likely be a reaosnable limit. If settable at source configuration time this "
+"should be sufficient."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:150
+msgid ""
+"2) Embed class allocators in resolver chains and mark the top / outermost / "
+"first resolver. The maximum state size for a resolution can be calculated "
+"when the chain is created and then the top level resolver can use an "
+"allocation pool to efficiently allocate request objects. This has an "
+"advantage that with a wrapper class the request object can be passed along "
+"cheaply. Whether that's an advantage in practice is unclear."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:156
+msgid "Plugin resolvers"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:158
+msgid ""
+"If plugins can provide resolvers, how can these can integrated in to "
+"existing resolver chains for use by the HTTP SM for instance?"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:162
+msgid "Feedback"
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:164
+msgid ""
+"It should be possible for a client to provide feedback about addresses (e."
+"g., the origin server at this address is not available). Not all resolvers "
+"will handle feedback but some will and that must be possible."
+msgstr ""
+
+#: ../../arch/proposals/hostdb.en.rst:167
+msgid ""
+"Related to this is that caching resolvers (such as *AddressCache*) must be "
+"able to iterator over all resolved addresses even if their client does not "
+"ask for them. In effect they must background fill the address data."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/glossary.en.po b/doc/locale/ja/LC_MESSAGES/glossary.en.po
new file mode 100644
index 00000000..a8422984
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/glossary.en.po
@@ -0,0 +1,284 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../glossary.en.rst:20
+msgid "Glossary"
+msgstr "用語集"
+
+#: ../../glossary.en.rst:49
+msgid "cache span"
+msgstr "キャッシュスパン"
+
+#: ../../glossary.en.rst:51
+msgid ""
+"The physical storage described by a single line in :file:`storage.config`."
+msgstr ":file:`storage.config` の各行に記述された物理ストレージです。"
+
+#: ../../glossary.en.rst:44
+msgid "cache stripe"
+msgstr "キャッシュストライプ"
+
+#: ../../glossary.en.rst:39
+msgid "cache volume"
+msgstr "キャッシュボリューム"
+
+#: ../../glossary.en.rst:41
+msgid ""
+"A user defined unit of persistent storage for the cache. Cache volumes are "
+"defined in :file:`volume.config`. A cache volume is by default spread "
+"across :term:`cache span`\\ s to increase robustness. Each section of a "
+"cache volume on a specific cache span is a :term:`cache stripe`."
+msgstr ""
+"ユーザがキャッシュとして定義した永続ストレージの単位です。キャッシュボリュー"
+"ムは :file:`volume.config` で定義されます。キャッシュボリュームは頑強性を高"
+"めるため :term:`キャッシュスパン`\\ を跨いで分散されます。特定のキャッシュス"
+"パンにおけるキャッシュボリュームの各セクションは :term:`キャッシュストライプ"
+"` です。"
+
+#: ../../glossary.en.rst:24
+msgid "continuation"
+msgstr "継続"
+
+#: ../../glossary.en.rst:26
+msgid ""
+"A callable object that contains state. These are are mechanism used by "
+"Traffic Server to implement callbacks and continued computations. Continued "
+"computations are critical to efficient processing of traffic because by "
+"avoiding any blocking operations that wait on external events. In any such "
+"case a continuation is used so that other processing can continue until the "
+"external event occurs. At that point the continuation is invoked to "
+"continue the suspended processing. This can be considered similar to co-"
+"routines."
+msgstr ""
+"状態を持った呼び出し可能なオブジェクトです。 コールバックと継続的な計算を実"
+"装するために Traffic Server で用いられるメカニズムです。外部イベントを待つ操"
+"作のブロッキングを避けることによりトラフィックを効率良く処理するため、継続的"
+"な計算は重要です。そのような場合において、他の処理が外部イベントが起こるまで"
+"続けられるようにするため継続が使用されます。その時点で継続は中断した処理を続"
+"けるために発動されます。これはコルーチンに似た考えができます。"
+
+#: ../../glossary.en.rst:77
+msgid "revalidation"
+msgstr "再確認"
+
+#: ../../glossary.en.rst:79
+msgid ""
+"Verifying that a currently cached object is still valid. This is usually "
+"done using an `If-Modified-Since <http://www.w3.org/Protocols/rfc2616/"
+"rfc2616-sec14.html#sec14.25>`_ request which allows the origin server to "
+"validate the content without resending the content."
+msgstr ""
+"現在のキャッシュされたオブジェクトがまだ有効か確認することです。これは通常オ"
+"リジンサーバがコンテンツの再送信をすることなくコンテンツの確認を行うことを可"
+"能にする `If-Modified-Since <http://www.w3.org/Protocols/rfc2616/rfc2616-"
+"sec14.html#sec14.25>`_ リクエストを使って行われます。"
+
+#: ../../glossary.en.rst:31
+msgid "session"
+msgstr "セッション"
+
+#: ../../glossary.en.rst:33
+msgid ""
+"A single connection from a client to Traffic Server, covering all requests "
+"and responses on that connection. A session starts when the client "
+"connection opens, and ends when the connection closes."
+msgstr ""
+"全てのリクエストとレスポンスをカバーする、クライアントから Traffic Server へ"
+"の単一のコネクションです。セッションはクライアントがコネクションをオープンし"
+"た際に開始し、コネクションをクローズする際に終了します。"
+
+#: ../../glossary.en.rst:74
+msgid "storage unit"
+msgstr "ストレージユニット"
+
+#: ../../glossary.en.rst:76
+msgid "Obsolete term for :term:`cache span`."
+msgstr ":term:`キャッシュスパン` の旧称です。"
+
+#: ../../glossary.en.rst:35
+msgid "transaction"
+msgstr "トランザクション"
+
+#: ../../glossary.en.rst:37
+msgid ""
+"A client request and response, either from the origin server or from the "
+"cache. A transaction begins when Traffic Server receives a request, and "
+"ends when Traffic Server sends the response."
+msgstr ""
+"クライアントのリクエストと、オリジンサーバーもしくはキャッシュからレスポンス"
+"です。トランザクションは Traffic Server がリクエストを受け付けた際に開始"
+"し、 Traffic Server がレスポンスを送る際に終了します。"
+
+#: ../../glossary.en.rst:82
+msgid "write cursor"
+msgstr "書込みカーソル"
+
+#: ../../glossary.en.rst:84
+msgid "The location in a :term:`cache stripe` where new data is written."
+msgstr "新しいデータが書き込まれる :term:`キャッシュストライプ` の位置です。"
+
+#: ../../glossary.en.rst:68
+msgid "alternate"
+msgstr "代替"
+
+#: ../../glossary.en.rst:70
+msgid ""
+"A variant of a :term:`cache object`. This was originally created to handle "
+"the `VARY mechanism <http://www.w3.org/Protocols/rfc2616/rfc2616-sec14."
+"html#sec14.44>`_ but has since been used for additional purposes. All "
+"alternates of an object must be equivalent in some manner, that is they are "
+"alternate forms of the same stream. The most common example is having "
+"normal and compressed versions of the stream."
+msgstr ""
+":term:`キャッシュオブジェクト` の変形です。元々は `VARY メカニズム <http://"
+"www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.44>`_ を処理するために"
+"作られましたが、以来他の目的のためにも使われています。オブジェクトの全ての代"
+"替は何らかの方法で同質にならなければならず、同じストリームの形式に変化しま"
+"す。最も一般的な例はストリームの通常版と圧縮版を持つことです。"
+
+#: ../../glossary.en.rst:97
+msgid "cache fragment"
+msgstr "キャッシュフラグメント"
+
+#: ../../glossary.en.rst:99
+msgid ""
+"The unit of storage in the cache. All reads from the cache always read "
+"exactly one fragment. Fragments may be written in groups, but every write "
+"is always an integral number of fragments. Each fragment has a "
+"corresponding :term:`directory entry` which describes its location in the "
+"cache storage."
+msgstr ""
+"キャッシュ内のストレージの単位です。キャッシュの全ての読込みは常にちょうど一"
+"つのフラグメントを読み込みます。フラグメントはまとめて書き込まれるかも知れま"
+"せんが、全ての書込みは常にフラグメントの整数になります。各フラグメントは "
+"キャッシュストレージにおける自身の位置情報を持つ :term:`ディレクトリエントリ"
+"` に対応しています。"
+
+#: ../../glossary.en.rst:56
+msgid "cache ID"
+msgstr "キャッシュ ID"
+
+#: ../../glossary.en.rst:58
+msgid ""
+"A 128 bit value used as a fixed sized identifier for an object in the "
+"cache. This is computed from the :term:`cache key` using the `MD5 hashing "
+"function <http://www.openssl.org/docs/crypto/md5.html>`_."
+msgstr ""
+"キャッシュのオブジェクトの固定サイズの識別子として使用される 128 ビットの値"
+"です。 `MD5 ハッシュ関数 <http://www.openssl.org/docs/crypto/md5.html>`_ を"
+"用いて :term:`キャッシュキー` から計算されます。"
+
+#: ../../glossary.en.rst:52
+msgid "cache key"
+msgstr "キャッシュキー"
+
+#: ../../glossary.en.rst:54
+msgid ""
+"A byte sequence that is a globally unique identifier for an :term:`object "
+"<cache object>` in the cache. By default the URL for the object is used."
+msgstr ""
+"キャッシュの :term:`オブジェクト <キャッシュオブジェクト>` の大域的にユニー"
+"クな識別子のバイト列です。デフォルトではオブジェクトの URL が使用されます。"
+
+#: ../../glossary.en.rst:64
+msgid "cache object"
+msgstr "キャッシュオブジェクト"
+
+#: ../../glossary.en.rst:66
+msgid ""
+"The minimal self contained unit of data in the cache. Cache objects are the "
+"stored version of equivalent content streams from an origin server. A "
+"single object can have multiple variants called :term:`alternates "
+"<alternate>`."
+msgstr ""
+"キャッシュのデータの最小の自己完結した単位です。キャッシュオブジェクトはオリ"
+"ジンサーバーからのコンテンツストリームと等価な保存されたバージョンです。単一"
+"のオブジェクトは :term:`代替 <代替>` と呼ばれる複数の変形を持ち得ます。"
+
+#: ../../glossary.en.rst:46
+msgid ""
+"A homogenous persistent store for the cache in a single :term:`cache span`. "
+"A stripe always resides entirely on a single physical device and is treated "
+"as an undifferentiated span of bytes. This is the smallest independent unit "
+"of storage."
+msgstr ""
+"単一の :term:`キャッシュスパン` におけるキャッシュの同質な永続ストアです。ス"
+"トライプは常に一つの物理デバイスに全体的に置かれ、区別されないバイト列のスパ"
+"ンとして扱われます。これはストレージの最小の独立した単位です。"
+
+#: ../../glossary.en.rst:60
+msgid "cache tag"
+msgstr "キャッシュタグ"
+
+#: ../../glossary.en.rst:62
+msgid ""
+"The bottom few bits (12 currently) of the :term:`cache ID`. This is used in "
+"the :ref:`cache directory <cache-directory>` for a preliminary identity "
+"check before going to disk."
+msgstr ""
+":term:`キャッシュ ID` の下位数ビット（現在は 12）です。ディスクへアクセスす"
+"る前に予備的な識別チェックを行うために :ref:`キャッシュディレクトリ <cache-"
+"directory>` で使用されます。"
+
+#: ../../glossary.en.rst:90
+msgid "directory bucket"
+msgstr "ディレクトリバケット"
+
+#: ../../glossary.en.rst:92
+msgid ""
+"A contiguous fixed sized group of :term:`directory entries <directory "
+"entry>`. This is used for hash bucket maintenance optimization."
+msgstr ""
+"隣接した :term:`ディレクトリエントリ <ディレクトリエントリ>` の固定サイズの"
+"グループです。ハッシュバケットのメンテナンスの最適化に使用されます。"
+
+#: ../../glossary.en.rst:94
+msgid "directory entry"
+msgstr "ディレクトリエントリ"
+
+#: ../../glossary.en.rst:96
+msgid "An in memory entry that describes a :term:`cache fragment`."
+msgstr ":term:`キャッシュフラグメント` を指すメモリに置かれるエントリです。"
+
+#: ../../glossary.en.rst:85
+msgid "directory segment"
+msgstr "ディレクトリセグメント"
+
+#: ../../glossary.en.rst:87
+msgid ""
+"A contiguous group of :term:`buckets <directory bucket>`. Each :term:`cache "
+"stripe` has a set of segments all of which have the same number of buckets, "
+"although the number of buckets per segment can vary between cache stripes. "
+"Segments are administrative in purpose to minimize the size of free list "
+"and hash bucket pointers."
+msgstr ""
+"隣接した :term:`バケット <ディレクトリバケット>` のグループです。セグメント"
+"あたりのバケット数はキャッシュストライプの間で変化する可能性がありますが、"
+"各 :term:`キャッシュストライプ` は同じ数のバケットを持つ全てのセグメントの"
+"セットを持ちます。セグメントはフリーリストとハッシュバケットポインタのサイズ"
+"を最小限にするため管理できます。"
diff --git a/doc/locale/ja/LC_MESSAGES/index.po b/doc/locale/ja/LC_MESSAGES/index.po
new file mode 100644
index 00000000..cf740003
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/index.po
@@ -0,0 +1,73 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../index.rst:2
+msgid "Apache Traffic Server"
+msgstr ""
+
+#: ../../index.rst:22
+msgid ""
+"Apache Traffic Server™ speeds Internet access, enhances website "
+"performance, and delivers unprecedented web hosting capabilities."
+msgstr ""
+"Apache Traffic Server™ はインターネットアクセスを加速させ、ウェブサイトのパ"
+"フォーマンスを高め、かつて無いウェブホスティング性能を提供します。"
+
+#: ../../index.rst:26
+msgid "What Is Apache Traffic Server?"
+msgstr "Apache Traffic Server とは？"
+
+#: ../../index.rst:28
+msgid ""
+"Traffic Server is a high-performance web proxy cache that improves network "
+"efficiency and performance by caching frequently-accessed information at "
+"the edge of the network. This brings content physically closer to end "
+"users, while enabling faster delivery and reduced bandwidth use. Traffic "
+"Server is designed to improve content delivery for enterprises, Internet "
+"service providers (ISPs), backbone providers, and large intranets by "
+"maximizing existing and available bandwidth."
+msgstr ""
+"Traffic Server はハイパフォーマンスなウェブプロキシーキャッシュであり、それ"
+"はネットワークの端で頻繁にアクセスされる情報をキャッシュすることによりネット"
+"ワーク効率とパフォーマンスを改善します。これは物理的に近いエンドユーザーにコ"
+"ンテンツを運ぶ一方で、素早い提供と帯域使用量の削減を可能にします。Traffic "
+"Server は商用のコンテンツ配信やインターネットサービスプロバイダー( ISP )や"
+"バックボーンプロバイダーや巨大なイントラネットを現行の利用可能な帯域を最大化"
+"することで改善するようにデザインされています。"
+
+#: ../../index.rst:50
+msgid "Indices and tables"
+msgstr "Indices and tables"
+
+#: ../../index.rst:52
+msgid ":ref:`genindex`"
+msgstr ":ref:`genindex`"
+
+#: ../../index.rst:53
+msgid ":ref:`search`"
+msgstr ":ref:`search`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSAPI.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSAPI.en.po
new file mode 100644
index 00000000..f98e0fb6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSAPI.en.po
@@ -0,0 +1,320 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSAPI.en.rst:21
+msgid "TSAPI"
+msgstr "TSAPI"
+
+#: ../../reference/api/TSAPI.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSAPI.en.rst:25
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSAPI.en.rst:26
+msgid "`#include <ts/remap.h>`"
+msgstr "`#include <ts/remap.h>`"
+
+#: ../../reference/api/TSAPI.en.rst:29
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSAPI.en.rst:30
+msgid ""
+"The Apache Traffic Server API enables you to create plugins, using the C "
+"programming language, that customize the behavior of your Traffic Server "
+"installation."
+msgstr ""
+"Apache Traffic Server API は C 言語を使ってインストール済みの Traffic "
+"Server の振る舞いをカスタマイズするプラグインの作成を可能にします。"
+
+#: ../../reference/api/TSAPI.en.rst:34
+msgid ""
+"Traffic Server enables sophisticated caching and processing of web-related "
+"traffic, such as DNS and HTTP requests and responses. Traffic Server itself "
+"consists of an event-driven loop that can be simplified as follows::"
+msgstr ""
+"Traffic Server は洗練されたキャッシュと DNS や HTTP のリクエストやレスポンス"
+"のような Web 関連トラフィックの処理を可能とします。Traffic Server 自体は次の"
+"ように簡素化されたイベントドリブンループから成っています。"
+
+#: ../../reference/api/TSAPI.en.rst:44
+msgid ""
+"You compile your plugin source code to create a shared library that Traffic "
+"Server loads when it is started. Your plugin contains callback functions "
+"that are registered for specific Traffic Server events. When Traffic Server "
+"needs to process an event, it invokes any and all call-back functions "
+"you've registered for that event type."
+msgstr ""
+"Traffic Server が動作を開始するときに読み込まれる共有ライブラリを作るために"
+"プラグインのソースをコンパイルします。プラグインは特定の Traffic Server イベ"
+"ントに登録されるコールバック関数を含んでいます。Traffic Server がイベントの"
+"処理を必要とすると、そのイベントタイプに登録したあらゆるコールバック関数が呼"
+"び出されます。"
+
+#: ../../reference/api/TSAPI.en.rst:51
+msgid "Possible uses for plugins include the following:"
+msgstr "プラグインは次の使い方ができます。"
+
+#: ../../reference/api/TSAPI.en.rst:53
+msgid ""
+"HTTP processing plugins can filter, blacklist, authorize users or transform "
+"content."
+msgstr ""
+"HTTP 処理プラグインはフィルター、ブラックリスト、ユーザー認証、コンテンツの"
+"変換ができます。"
+
+#: ../../reference/api/TSAPI.en.rst:54
+msgid ""
+"Protocol plugins can enable Traffic Server to proxy-cache new protocol "
+"content."
+msgstr ""
+"プロトコルプラグインは Traffic Server が新しいプロトコルコンテンツをプロキ"
+"シーキャッシュできるようにします。"
+
+#: ../../reference/api/TSAPI.en.rst:55
+msgid ""
+"A blacklisting plugin denies attempts to access web sites that are off-"
+"limits."
+msgstr ""
+"ブラックリストプラグインは進入禁止の Web サイトへのアクセスを拒絶します。"
+
+#: ../../reference/api/TSAPI.en.rst:56
+msgid "Append transform plugins add data to HTTP response content."
+msgstr "追加変換プラグインは HTTP レスポンスコンテンツにデータを追加します。"
+
+#: ../../reference/api/TSAPI.en.rst:57
+msgid "An image conversion plugin transforms JPEG images to GIF images."
+msgstr "画像変換プラグインは JPEG 画像を GIF 画像に変換します。"
+
+#: ../../reference/api/TSAPI.en.rst:58
+msgid ""
+"Compression plugins send response content to a compression server that "
+"compresses the data (alternatively, a compression library local to the "
+"Traffic Server host machine could do the compression)."
+msgstr ""
+"圧縮プラグインはデータを圧縮する圧縮サーバーにレスポンスデータを送信します "
+"(もしくは、Traffic Server のホストマシンにある圧縮ライブラリが圧縮を行うかも"
+"しれません) 。"
+
+#: ../../reference/api/TSAPI.en.rst:61
+msgid ""
+"Authorization plugins check a user's permissions to access particular web "
+"sites. The plugin could consult a local authorization program or send "
+"queries to an authorization server."
+msgstr ""
+"認証プラグインは特定の Web サイトにアクセスするためのユーザーの権限を確認し"
+"ます。このプラグインはローカルの認証プログラムに問い合わせたり、認証サーバー"
+"に問い合わせを送信したりするかもしれません。"
+
+#: ../../reference/api/TSAPI.en.rst:64
+msgid ""
+"A plugin that gathers client information from request headers and enters "
+"this information in a database."
+msgstr ""
+"リクエストヘッダーからクライアントの情報を収集しその情報をデータベースに入力"
+"するプラグイン。"
+
+#: ../../reference/api/TSAPI.en.rst:66
+msgid ""
+"A protocol plugin listen for specific protocol requests on a designated "
+"port and then uses Traffic Server's proxy server and cache to serve client "
+"requests."
+msgstr ""
+"プロトコルプラグインは指定されたポートへの特定のプロトコルのリクエストを受"
+"け、クライアントのリクエストに応えるために Traffic Server のプロキシーサー"
+"バーとキャッシュを使用します。"
+
+#: ../../reference/api/TSAPI.en.rst:71
+msgid "Naming conventions"
+msgstr "命名規則"
+
+#: ../../reference/api/TSAPI.en.rst:73
+msgid "The Traffic Server API adheres to the following naming conventions:"
+msgstr "Traffic Server API は次の命名規則に従います。"
+
+#: ../../reference/api/TSAPI.en.rst:75
+msgid ""
+"The TS prefix is used for all function and variable names defined in the "
+"Traffic Server API. For example, :data:`TS_EVENT_NONE`, :type:`TSMutex`, "
+"and :func:`TSContCreate`."
+msgstr ""
+"TS プレフィックスは Traffic Server API のすべての関数と変数の名前に使用され"
+"ます。例えば、:data:`TS_EVENT_NONE` 、:type:`TSMutex` 、:func:"
+"`TSContCreate` となります。"
+
+#: ../../reference/api/TSAPI.en.rst:78
+msgid ""
+"Enumerated values are always written in all uppercase letters. For "
+"example, :data:`TS_EVENT_NONE` and :data:`TS_VC_CLOSE_ABORT`."
+msgstr ""
+"列挙された値は常にすべて大文字で書かれます。例えば、:data:`TS_EVENT_NONE` "
+"や :data:`TS_VC_CLOSE_ABORT` となります。"
+
+#: ../../reference/api/TSAPI.en.rst:80
+msgid ""
+"Constant values are all uppercase; enumerated values can be seen as a "
+"subset of constants. For example, :data:`TS_URL_SCHEME_FILE` and :data:"
+"`TS_MIME_FIELD_ACCEPT`."
+msgstr ""
+"定数はすべて大文字です。列挙された値は定数の一部に見えるかもしれません。例え"
+"ば、:data:`TS_URL_SCHEME_FILE` や :data:`TS_MIME_FIELD_ACCEPT` となります。"
+
+#: ../../reference/api/TSAPI.en.rst:83
+msgid ""
+"The names of defined types are mixed-case. For example, :type:`TSHttpSsn` "
+"and :func:`TSHttpTxn`. :func:`TSDebug`"
+msgstr ""
+"定義された型の名前は大文字小文字が混在します。例えば、:type:`TSHttpSsn` 、:"
+"func:`TSHttpTxn` 、:func:`TSDebug` となります。"
+
+#: ../../reference/api/TSAPI.en.rst:85
+msgid ""
+"Function names are mixed-case. For example, :func:`TSUrlCreate` and :func:"
+"`TSContDestroy`."
+msgstr ""
+"関数名は混在になります。例えば、:func:`TSUrlCreate` や :func:"
+"`TSContDestroy` となります。"
+
+#: ../../reference/api/TSAPI.en.rst:87
+msgid ""
+"Function names use the following subject-verb naming style: TS-<subject>-"
+"<verb>, where <subject> goes from general to specific. This makes it easier "
+"to determine what a function does by reading its name. For example, the "
+"function to retrieve the password field (the specific subject) from a URL "
+"(the general subject) is :func:`TSUrlPasswordGet`."
+msgstr ""
+"関数名は次の 主語-動詞 命名スタイルを使用します。TS-<主語>-<動詞> 、<主語> "
+"の部分は一般的なものから限定的なものにしていきます。これはその名前を読むこと"
+"で関数が何をするのかを分かりやすくします。例えば、URL (一般的な主語) からパ"
+"スワードフィールド (限定的な主語) を取得する関数は :func:`TSUrlPasswordGet` "
+"となります。"
+
+#: ../../reference/api/TSAPI.en.rst:93
+msgid ""
+"Common verbs like Create, Destroy, Get, Set, Copy, Find, Retrieve, Insert, "
+"Remove, and Delete are used only when appropriate."
+msgstr ""
+"Create 、Destroy 、Get 、Set 、Copy 、Find 、Retrieve 、Insert 、Remove 、"
+"Delete のような一般的な動詞はそれが適切な場合にのみ使用されます。"
+
+#: ../../reference/api/TSAPI.en.rst:97
+msgid "Plugin loading and configuration"
+msgstr "プラグインの読み込みと設定"
+
+#: ../../reference/api/TSAPI.en.rst:99
+msgid ""
+"When Traffic Server is first started, it consults the plugin.config file to "
+"determine the names of all shared plugin libraries that need to be loaded. "
+"The plugin.config file also defines arguments that are to be passed to each "
+"plugin's initialization function, :func:`TSPluginInit`. The :file:`records."
+"config` file defines the path to each plugin shared library."
+msgstr ""
+"Traffic Server が最初にスタートするとき、読み込まれる必要のあるすべての共有"
+"ライブラリの名前を決定するために plugin.config ファイルを参照します。 "
+"plugin.config ファイルは個々のプラグインの初期化関数 :func:`TSPluginInit` に"
+"渡される引数も定義します。:file:`records.config` ファイルは個々のプラグイン"
+"共有ライブラリのパスを定義します。"
+
+#: ../../reference/api/TSAPI.en.rst:106
+msgid ""
+"The sample :file:`plugin.config` file below contains a comment line, a "
+"blank line, and two plugin configurations::"
+msgstr ""
+"以下の :file:`plugin.config` ファイルのサンプルはコメント行、空行、二つのプ"
+"ラグインの設定から成っています。"
+
+#: ../../reference/api/TSAPI.en.rst:113
+msgid ""
+"Each plugin configuration in the :file:`plugin.config` file resembles a "
+"UNIX or DOS shell command; each line in :file:`plugin.config` cannot exceed "
+"1023 characters."
+msgstr ""
+":file:`plugin.config` ファイル内の個々のプラグインの設定は UNIX または DOS "
+"のシェルコマンドに似ています。:file:`plugin.config` 内の各行は 1023 文字を超"
+"えることはできません。"
+
+#: ../../reference/api/TSAPI.en.rst:117
+msgid ""
+"The first plugin configuration is for a plugin named my-plugin.so. It "
+"contains three arguments that are to be passed to that plugin's "
+"initialization routine. The second configuration is for a plugin named some-"
+"plugin.so; it contains three arguments. The last argument, $proxy.config."
+"http.cache.on, is actually a configuration variable. Traffic Server will "
+"look up the specified configuration variable and substitute its value."
+msgstr ""
+"最初のプラグインの設定は my-plugin.so と名付けられたプラグインのためのもので"
+"す。これはそのプラグインの初期化ルーチンに渡される三つの引数を含んでいます。"
+"二番目の設定は some-plugin.so と名付けられたプラグインのためのものです。これ"
+"は三つの引数を含んでいます。その最後の引数である $proxy.config.http.cache."
+"on は実は設定変数です。Traffic Server は指定された設定変数を参照し、その値で"
+"置き換えます。"
+
+#: ../../reference/api/TSAPI.en.rst:125
+msgid ""
+"Plugins are loaded and initialized by Traffic Server in the order they "
+"appear in the :file:`plugin.config` file."
+msgstr ""
+"プラグインは :file:`plugin.config` ファイルに出てくる順番で Traffic Server "
+"に読み込まれ初期化されます。"
+
+#: ../../reference/api/TSAPI.en.rst:129
+msgid "Plugin initialization"
+msgstr "プラグインの初期化"
+
+#: ../../reference/api/TSAPI.en.rst:131
+msgid ""
+"Each plugin must define an initialization function named :func:"
+"`TSPluginInit` that Traffic Server invokes when the plugin is loaded. :func:"
+"`TSPluginInit` is commonly used to read configuration information and "
+"register hooks for event notification."
+msgstr ""
+"各プラグインはプラグインが読み込まれたときに Traffic Server が呼び出す :"
+"func:`TSPluginInit` という初期化関数を定義していなければなりません。:func:"
+"`TSPluginInit` は一般的に設定情報を読み込みイベント通知のフックを登録するた"
+"めに使用されます。"
+
+#: ../../reference/api/TSAPI.en.rst:138
+msgid "Files"
+msgstr "ファイル"
+
+#: ../../reference/api/TSAPI.en.rst:139
+msgid ""
+":file:`{CONFIG_DIR}/plugin.config`, :file:`{CONFIG_DIR}/records.config`"
+msgstr ""
+":file:`{CONFIG_DIR}/plugin.config`, :file:`{CONFIG_DIR}/records.config`"
+
+#: ../../reference/api/TSAPI.en.rst:142
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSAPI.en.rst:143
+msgid ":manpage:`TSPluginInit(3ts)`"
+msgstr ":manpage:`TSPluginInit(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSDebug.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSDebug.en.po
new file mode 100644
index 00000000..1e7c210b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSDebug.en.po
@@ -0,0 +1,117 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSDebug.en.rst:21
+msgid "TSDebug"
+msgstr "TSDebug"
+
+#: ../../reference/api/TSDebug.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSDebug.en.rst:25
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSDebug.en.rst:39
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSDebug.en.rst:41
+msgid ""
+":func:`TSError` is similar to :func:`printf` except that instead of writing "
+"the output to the C standard output, it writes output to the Traffic Server "
+"error log."
+msgstr ""
+":func:`TSError` は C 標準出力に書き込む代わりに Traffic Server のエラーログ"
+"に書き込むことを除けば :func:`printf` に似ています。"
+
+#: ../../reference/api/TSDebug.en.rst:45
+msgid ""
+":func:`TSDebug` is the same as :func:`TSError` except that it only logs the "
+"debug message if the given debug tag is enabled. It writes output to the "
+"Traffic Server debug log."
+msgstr ""
+":func:`TSDebug` は与えられたデバッグタグが有効化されている場合にのみログメッ"
+"セージを出力する点を除いて :func:`TSError` と同じです。"
+
+#: ../../reference/api/TSDebug.en.rst:49
+msgid ""
+":func:`TSIsDebugTagSet` returns non-zero if the given debug tag is enabled."
+msgstr ""
+":func:`TSIsDebugTagSet` は与えられたデバッグタグが有効化されている場合に非ゼ"
+"ロを返します。"
+
+#: ../../reference/api/TSDebug.en.rst:52
+msgid ""
+"In debug mode, :macro:`TSAssert` Traffic Server to prints the file name, "
+"line number and expression, and then aborts. In release mode, the "
+"expression is not removed but the effects of printing an error message and "
+"aborting are. :macro:`TSReleaseAssert` prints an error message and aborts "
+"in both release and debug mode."
+msgstr ""
+"デバッグモードでは、:macro:`TSAssert` は Traffic Server にファイル名、行番"
+"号、式を出力させ、処理を中断します。リリースモードでは、式の出力は残ります"
+"が、エラーメッセージの出力と処理の中断は行われません。:macro:"
+"`TSReleaseAssert` はリリースモードとデバッグモードのどちらでもエラーメッセー"
+"ジの出力と処理の中断を行います。"
+
+#: ../../reference/api/TSDebug.en.rst:65
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSDebug.en.rst:67
+msgid ""
+"This example uses :func:`TSDebugSpecific` to log a message when a specific "
+"debugging flag is enabled::"
+msgstr ""
+"この例は特定のデバッグフラグが有効になっている場合にメッセージをログに出力す"
+"るために :func:`TSDebugSpecific` を使用しています。"
+
+#: ../../reference/api/TSDebug.en.rst:78
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSDebug.en.rst:79
+msgid ":manpage:`TSAPI(3ts)`, :manpage:`printf(3)`"
+msgstr ":manpage:`TSAPI(3ts)`, :manpage:`printf(3)`"
+
+#: ../../reference/api/TSDebug.en.rst:58
+msgid ""
+":func:`TSDebugSpecific` emits a debug line even if the debug tag is turned "
+"off, as long as debug flag is enabled. This can be used in conjunction "
+"with :func:`TSHttpTxnDebugSet`, :func:`TSHttpSsnDebugSet`, :func:"
+"`TSHttpTxnDebugGet` and :func:`TSHttpSsnDebugGet` to enable debugging on "
+"specific session and transaction objects."
+msgstr ""
+":func:`TSDebugSpecific` はデバッグタグがオフにされていてもデバッグフラグ"
+"が有効化されてさえいればデバッグ行を出力します。これは特定のセッションと"
+"トランザクションオブジェクトでデバッグを有効化するために :func:"
+"`TSHttpTxnDebugSet` 、:func:`TSHttpSsnDebugSet` 、:func:"
+"`TSHttpTxnDebugGet` 、:func:`TSHttpSsnDebugGet` と組み合わせて使用される"
+"ことがあります。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpHookAdd.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpHookAdd.en.po
new file mode 100644
index 00000000..f47b23aa
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpHookAdd.en.po
@@ -0,0 +1,132 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:22
+msgid "TSHttpHookAdd"
+msgstr "TSHttpHookAdd"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:25
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:26
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:33
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:35
+msgid ""
+"Hooks are points in Apache Traffic Server transaction HTTP processing where "
+"plugins can step in and do some work. Registering a plugin function for "
+"callback amounts to adding the function to a hook. You can register your "
+"plugin to be called back for every single transaction, or for specific "
+"transactions only."
+msgstr ""
+"フックは Apache Traffic Server の HTTP 処理の中でプラグインが入り込み何かで"
+"きる場所です。コールバックのためのプラグインの関数を登録することはフックに関"
+"数を追加することと同じです。一つずつすべてのトランザクション、もしくは特定の"
+"トランザクションのみにコールバックされるプラグインを登録することができます。"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:41
+msgid ""
+"HTTP :term:`transaction` hooks are set on a global basis using the "
+"function :func:`TSHttpHookAdd`. This means that the continuation specified "
+"as the parameter to :func:`TSHttpHookAdd` is called for every transaction. :"
+"func:`TSHttpHookAdd` is typically called from :func:`TSPluginInit` or :func:"
+"`TSRemapInit`."
+msgstr ""
+"HTTP :term:`transaction` フックは関数 :func:`TSHttpHookAdd` を使いグローバル"
+"にセットされます。これは :func:`TSHttpHookAdd` のパラメーターとして指定され"
+"た継続は全トランザクションで呼ばれるということを意味します。:func:"
+"`TSHttpHookAdd` は一般的に :func:`TSPluginInit` もしくは :func:"
+"`TSRemapInit` から呼ばれます。"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:47
+msgid ""
+":func:`TSHttpSsnHookAdd` adds :arg:`contp` to the end of the list of HTTP :"
+"term:`session` hooks specified by :arg:`id`. This means that :arg:`contp` "
+"is called back for every transaction within the session, at the point "
+"specified by the hook ID. Since :arg:`contp` is added to a session, it is "
+"not possible to call :func:`TSHttpSsnHookAdd` from the plugin "
+"initialization routine; the plugin needs a handle to an HTTP session."
+msgstr ""
+":func:`TSHttpSsnHookAdd` は :arg:`contp` を :arg:`id` で指定された HTTP :"
+"term:`session` フックのリストの最後に追加します。これは :arg:`contp` がフッ"
+"ク ID で指定された場所において、セッション中のすべてのトランザクションで呼び"
+"出されることを意味します。:arg:`contp` がセッションに追加されるので、プラグ"
+"インの初期化ルーチンから :func:`TSHttpSsnHookAdd` を呼び出すことはできませ"
+"ん。プラグインは HTTP セッションを取り扱う必要があります。"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:55
+msgid ""
+":func:`TSHttpTxnHookAdd` adds :arg:`contp` to the end of the list of HTTP "
+"transaction hooks specified by :arg:`id`. Since :arg:`contp` is added to a "
+"transaction, it is not possible to call :func:`TSHttpTxnHookAdd` from the "
+"plugin initialization routine but only when the plugin has a handle to an "
+"HTTP transaction."
+msgstr ""
+":func:`TSHttpTxnHookAdd` は :arg:`contp` を :arg:`id` で指定された HTTP トラ"
+"ンザクションフックのリストの最後に追加します。:arg:`contp` がトランザクショ"
+"ンに追加されるので、プラグインの初期化ルーチンから :func:`TSHttpTxnHookAdd` "
+"を呼び出すことはできず、プラグインが HTTP トランザクションを取り扱うときのみ"
+"呼び出せます。"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:63
+msgid "Return values"
+msgstr "戻り値"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:65
+msgid "None. Adding hooks is always successful."
+msgstr "無し。フックの追加は常に成功します。"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:68
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:70
+msgid ""
+"The following example demonstrates how to add global, session and "
+"transaction hooks::"
+msgstr ""
+"次の例はどのようにグローバル、セッション、トランザクションフックを追加するか"
+"を紹介しています。"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:110
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSHttpHookAdd.en.rst:111
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSContCreate(3ts)`, :manpage:"
+"`TSLifecycleHookAdd(3ts)`"
+msgstr ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSContCreate(3ts)`, :manpage:"
+"`TSLifecycleHookAdd(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpOverridableConfig.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpOverridableConfig.en.po
new file mode 100644
index 00000000..3c93f5c5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpOverridableConfig.en.po
@@ -0,0 +1,108 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:24
+msgid "TSHttpOverridableConfig"
+msgstr "TSHttpOverridableConfig"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:27
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:28
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:41
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:43
+msgid ""
+"Some of the values that are set in :file:`records.config` can be changed "
+"for a specific transaction. It is important to note that these functions "
+"change the configuration values stored for the transation, which is not "
+"quite the same as changing the actual operating values of the transaction. "
+"The critical effect is the value must be changed before it is used by the "
+"transaction - after that, changes will not have any effect."
+msgstr ""
+":file:`records.config` に設定されるいくつかの値は特定のトランザクションにに"
+"おいて変更することが可能です。これらの関数はトランザクション用に格納された設"
+"定値を変更すること、つまりトランザクションが実際に処理する際の値を変更するの"
+"とまったく同じではないことに注意することが大切です。その重要な影響は値がトラ"
+"ンザクションで使用される前に変更されていなければならないことです。使用された"
+"後だった場合、変更は何の効果も持ちません。"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:48
+msgid ""
+"All of the ``...Get`` functions store the internal value in the storage "
+"indicated by the :arg:`value` argument. For strings :arg:`length*` will "
+"receive the length of the string."
+msgstr ""
+"すべての ``...Get`` 関数は :arg:`value` 引数で示された記憶領域に内部値を格納"
+"します。文字列では :arg:`length*` は文字列の長さを受け取ります。"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:50
+msgid ""
+"The values are identified by the enumeration :type:"
+"`TSOverridableConfigKey`. String values can be used indirectly by first "
+"passing them to :func:`TSHttpTxnConfigFind` which, if the string matches an "
+"overridable value, return the key and data type."
+msgstr ""
+"値は列挙型 :type:`TSOverridableConfigKey` で特定されます。文字列値は最初に :"
+"func:`TSHttpTxnConfigFind` に渡すことで間接的に使用でき、この関数は文字列が"
+"上書き可能な値に一致した場合にキーとデータ型を返します。"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:139
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:141
+msgid ""
+"Enable :ref:`transaction buffer control <transaction-buffering-control>` "
+"with a high water mark of 262144 and a low water mark of 65536. ::"
+msgstr ""
+":ref:`transaction-buffering-control` を high water マーク 262144 と low "
+"water マーク 65536 で有効化します。\\ ::"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:153
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:154
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:55
+msgid "Configurations"
+msgstr "設定"
+
+#: ../../reference/api/TSHttpOverridableConfig.en.rst:57
+msgid ""
+"The following configurations (from ``records.config``) are overridable: ::"
+msgstr "次の (``records.config`` の ) 設定は上書き可能です。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpParserCreate.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpParserCreate.en.po
new file mode 100644
index 00000000..50ba6621
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpParserCreate.en.po
@@ -0,0 +1,122 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:22
+msgid "TSHttpParserCreate"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:36
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:38
+msgid ""
+":func:`TSHttpParserCreate` creates an HTTP parser object. The parser's data "
+"structure contains information about the header being parsed. A single HTTP "
+"parser can be used multiple times, though not simultaneously. Before being "
+"used again, the parser must be cleared by calling :func:`TSHttpParserClear`."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:44
+msgid ""
+":func:`TSHttpHdrParseReq` parses an HTTP request header. The HTTP header :"
+"data:`offset` must already be created, and must reside inside the marshal "
+"buffer :data:`bufp`. The :data:`start` argument points to the current "
+"position of the string buffer being parsed and the :data:`end` argument "
+"points to one byte after the end of the buffer to be parsed. On return, :"
+"data:`start` is modified to point past the last character parsed."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:52
+msgid ""
+"It is possible to parse an HTTP request header a single byte at a time "
+"using repeated calls to :func:`TSHttpHdrParseReq`. As long as an error does "
+"not occur, the :func:`TSHttpHdrParseReq` function will consume that single "
+"byte and ask for more. :func:`TSHttpHdrParseReq` should be called after :"
+"data:`TS_HTTP_READ_REQUEST_HDR_HOOK`."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:58
+msgid ""
+":func:`TSHttpHdrParseResp` operates in the same manner as :func:"
+"`TSHttpHdrParseReq` except it parses an HTTP response header. It should be "
+"called after :data:`TS_HTTP_READ_RESPONSE_HDR_HOOK`."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:62
+msgid ""
+":func:`TSHttpParserClear` clears the specified HTTP parser so it may be "
+"used again."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:65
+msgid ""
+":func:`TSHttpParserDestroy` destroys the TSHttpParser object pointed to by :"
+"data:`parser`. The :data:`parser` pointer must not be NULL."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:69
+msgid "Return values"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:71
+msgid ""
+":func:`TSHttpHdrParseReq` and :func:`TSHttpHdrParseResp` both return a :"
+"type:`TSParseResult` value. :data:`TS_PARSE_ERROR` is returned on error, :"
+"data:`TS_PARSE_CONT` is returned if parsing of the header stopped because "
+"the end of the buffer was reached, and :data:`TS_PARSE_DONE` or :data:"
+"`TS_PARSE_OK` when a \\\\r\\\\n\\\\r\\\\n pattern is encountered, "
+"indicating the end of the header."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:79
+msgid "Bugs"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:81
+msgid ""
+"The distinction between the :data:`TS_PARSE_DONE` and :data:`TS_PARSE_OK` "
+"results is not well-defined. Plugins should expect both status codes and "
+"treat them equivalently."
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:86
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSHttpParserCreate.en.rst:87
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpTxnMilestoneGet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpTxnMilestoneGet.en.po
new file mode 100644
index 00000000..e54d374d
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSHttpTxnMilestoneGet.en.po
@@ -0,0 +1,259 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:22
+msgid "TSHttpTxnMilestoneGet"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:32
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:34
+msgid ""
+":func:`TSHttpTxnMilestoneGet` will fetch a specific :arg:`milestone` timer "
+"value for the transaction :arg:`txnp`. These timers are calculated during "
+"the lifetime of a transaction and are measured in nanoseconds from the "
+"beginning of the transaction. :arg:`time` is used a pointer to storage to "
+"update if the call is successful."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:41
+msgid "Value"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:41
+msgid "Milestone"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:43
+msgid ":const:`TS_MILESTONE_UA_BEGIN`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:43
+msgid "The client connection is accepted."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:44
+msgid ":const:`TS_MILESTONE_UA_READ_HEADER_DONE`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:44
+msgid "The request header from the client has been read and parsed."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:45
+msgid ":const:`TS_MILESTONE_UA_BEGIN_WRITE`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:45
+msgid "The response header write to the client starts."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:46
+msgid ":const:`TS_MILESTONE_UA_CLOSE`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:46
+msgid "Last I/O activity on the client socket, or connection abort."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:47
+msgid ":const:`TS_MILESTONE_SERVER_FIRST_CONNECT`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:47
+msgid ""
+"First time origin server connect attempted or shared shared session "
+"attached."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:48
+msgid ":const:`TS_MILESTONE_SERVER_CONNECT`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:48
+msgid ""
+"Most recent time origin server connect attempted or shared session attached."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:49
+msgid ":const:`TS_MILESTONE_SERVER_CONNECT_END`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:49
+msgid "More recent time a connection attempt was resolved."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:50
+msgid ":const:`TS_MILESTONE_SERVER_BEGIN_WRITE`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:50
+msgid "First byte is written to the origin server connection."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:51
+msgid ":const:`TS_MILESTONE_SERVER_FIRST_READ`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:51
+msgid "First byte is read from connection to origin server."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:52
+msgid ":const:`TS_MILESTONE_SERVER_READ_HEADER_DONE`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:52
+msgid "Origin server response has been read and parsed."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:53
+msgid ":const:`TS_MILESTONE_SERVER_CLOSE`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:53
+msgid "Last I/O activity on origin server connection."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:54
+msgid ":const:`TS_MILESTONE_CACHE_OPEN_READ_BEGIN`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:54
+msgid "Initiate read of the cache."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:55
+msgid ":const:`TS_MILESTONE_CACHE_OPEN_READ_END`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:55
+msgid "Initial cache read has resolved."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:56
+msgid ":const:`TS_MILESTONE_CACHE_OPEN_WRITE_BEGIN`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:56
+msgid "Start open for cache write."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:57
+msgid ":const:`TS_MILESTONE_CACHE_OPEN_WRITE_END`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:57
+msgid "Cache has been opened for write."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:58
+msgid ":const:`TS_MILESTONE_DNS_LOOKUP_BEGIN`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:58
+msgid "Initiate host resolution in HostDB"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:59
+msgid ":const:`TS_MILESTONE_DNS_LOOKUP_END`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:59
+msgid "Host resolution resolves."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:60
+msgid ":const:`TS_MILESTONE_SM_START`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:60
+msgid "Transaction state machine is initialized."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:61
+msgid ":const:`TS_MILESTONE_SM_FINISH`"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:61
+msgid "Transaction has finished, state machine final logging has started."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:64
+msgid ""
+"The server connect times predate the transmission of the ``SYN`` packet. "
+"That is, before a connection to the origin server is completed."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:67
+msgid ""
+"A connection attempt is *resolved* when no more connection related activity "
+"remains to be done, and the connection is either established or has failed."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:70
+msgid ""
+":const:`TS_MILESTONE_UA_CLOSE` and :const:`TS_MILESTONE_SERVER_CLOSE` are "
+"updated continuously during the life of the transaction, every time there "
+"is I/O activity. The updating stops when the corresponding connection is "
+"closed, leaving the last I/O time as the final value."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:74
+msgid ""
+"The cache ``OPEN`` milestones time only the initial setup, the \"open\", "
+"not the full read or write."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:77
+msgid "Return values"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:79
+msgid ""
+":const:`TS_SUCCESS` if successful and :arg:`time` was updated, otherwise :"
+"const:`TS_ERROR`."
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:82
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSHttpTxnMilestoneGet.en.rst:83
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSIOBufferCreate.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSIOBufferCreate.en.po
new file mode 100644
index 00000000..40448301
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSIOBufferCreate.en.po
@@ -0,0 +1,123 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:22
+msgid "TSIOBufferCreate"
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:26
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:37
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:39
+msgid ""
+"The :type:`TSIOBuffer` data structure is the building block of the TSVConn "
+"abstraction. An IO buffer is composed of a list of buffer blocks which are "
+"reference counted so that they can reside in multiple buffers at the same "
+"time. This makes it extremely efficient to copy data from one IO buffer to "
+"another using :func:`TSIOBufferCopy` since Traffic Server only needs to "
+"copy pointers and adjust reference counts appropriately and not actually "
+"copy any data; however applications should still strive to ensure data "
+"blocks are a reasonable size."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:48
+msgid ""
+"The IO buffer abstraction provides for a single writer and multiple "
+"readers. In order for the readers to have no knowledge of each other, they "
+"manipulate IO buffers through the :type:`TSIOBufferReader` data structure. "
+"Since only a single writer is allowed, there is no corresponding :type:"
+"`TSIOBufferWriter` data structure. The writer simply modifies the IO buffer "
+"directly."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:55
+msgid ":func:`TSIOBufferCreate` creates an empty :type:`TSIOBuffer`."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:57
+msgid ""
+":func:`TSIOBufferSizedCreate` creates an empty :type:`TSIOBuffer` with an "
+"initial capacity of index bytes."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:60
+msgid ""
+":func:`TSIOBufferDestroy` destroys the IO buffer bufp. Since multiple IO "
+"buffers can share data, this does not necessarily free all of the data "
+"associated with the IO buffer but simply decrements the appropriate "
+"reference counts."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:64
+msgid ""
+":func:`TSIOBufferWrite` appends length bytes from the buffer buf to the IO "
+"buffer bufp and returns the number of bytes successfully written into the "
+"IO buffer."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:68
+msgid ""
+":func:`TSIOBufferProduce` makes nbytes of data available for reading in the "
+"IO buffer bufp. A common pattern for writing to an IO buffer is to copy "
+"data into a buffer block and then call INKIOBufferProduce to make the new "
+"data visible to any readers."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:73
+msgid ""
+"The watermark of an TSIOBuffer is the minimum number of bytes of data that "
+"have to be in the buffer before calling back any continuation that has "
+"initiated a read operation on this buffer. As a writer feeds data into the "
+"TSIOBuffer, no readers are called back until the amount of data reaches the "
+"watermark. Setting a watermark can improve performance because it avoids "
+"frequent callbacks to read small amounts of data. :func:"
+"`TSIOBufferWaterMarkGet` gets the current watermark for the IO buffer bufp."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:82
+msgid ""
+":func:`TSIOBufferWaterMarkSet` gets the current watermark for the IO buffer "
+"bufp to water_mark bytes."
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:86
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSIOBufferCreate.en.rst:88
+msgid ":manpage:`TSAPI(3ts)`, :manpage:`TSIOBufferReaderAlloc(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSInstallDirGet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSInstallDirGet.en.po
new file mode 100644
index 00000000..dcb00537
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSInstallDirGet.en.po
@@ -0,0 +1,84 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:22
+msgid "TSInstallDirGet"
+msgstr "TSInstallDirGet"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:25
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:34
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:36
+msgid ""
+":func:`TSInstallDirGet` returns the path to the root of the Traffic Server "
+"installation. :func:`TSConfigDirGet` and :func:`TSPluginDirGet` return the "
+"complete, absolute path to the configuration directory and the plugin "
+"installation directory respectively."
+msgstr ""
+":func:`TSInstallDirGet` は インストール済みの Traffic Server のルートディレ"
+"クトリのパスを返します。:func:`TSConfigDirGet` と :func:`TSPluginDirGet` は"
+"それぞれ設定ディレクトリとインストール済みのプラグインディレクトリへの完全な"
+"絶対パスを返します。"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:42
+msgid "Return values"
+msgstr "戻り値"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:44
+msgid ""
+"These functions all return a NUL-terminated string that must not be "
+"modified or freed."
+msgstr ""
+"これらの関数はすべて変更や解放をしてはならない NULL 終端文字列を返します。"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:47
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:49
+msgid ""
+"To load a file that is located in the Traffic Server configuration "
+"directory::"
+msgstr "Traffic Server 設定ディレクトリにあるファイルを読み込むためには::"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:58
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSInstallDirGet.en.rst:59
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSLifecycleHookAdd.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSLifecycleHookAdd.en.po
new file mode 100644
index 00000000..3a094c09
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSLifecycleHookAdd.en.po
@@ -0,0 +1,192 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:24
+msgid "TSLifecycleHookAdd"
+msgstr "TSLifecycleHookAdd"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:27
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:28
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:33
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:35
+msgid ""
+":func:`TSLifecycleHookAdd` adds :arg:`contp` to the list of lifecycle hooks "
+"specified by :arg:`id`. Lifecycle hooks are based on the Traffic Server "
+"process, not on any specific transaction or session. These will typically "
+"be called only once during the execution of the Traffic Server process and "
+"therefore should be added in :func:`TSPluginInit` (which could itself be "
+"considered a lifecyle hook). Unlike other hooks, lifecycle hooks may not "
+"have a well defined ordering and use of them should not assume that one of "
+"the hooks is always called before another unless specifically mentioned."
+msgstr ""
+":func:`TSLifecycleHookAdd` は :arg:`contp` を :arg:`id` で指定されるライフサ"
+"イクルフックのリストに追加します。ライフサイクルフックは特定のトランザクショ"
+"ンやセッションではなく Traffic Server プロセスのもとに成り立ちます。これらは"
+"一般的に Traffic Server プロセスの実行中に一度だけ呼び出されるので、( それ自"
+"体もライフサイクルフックとみなされる ) :func:`TSPluginInit` の中で追加される"
+"べきです。他のフックと違い、ライフサイクルフックは明確な順序を持たず、使用に"
+"あたっては特に言及されていない限りフックのうちの一つが常に他のどれかより前に"
+"呼び出されると仮定すべきではありません。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:45
+msgid "`TS_LIFECYCLE_PORTS_INITIALIZED_HOOK`"
+msgstr "`TS_LIFECYCLE_PORTS_INITIALIZED_HOOK`"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:40
+msgid ""
+"Called after the :ts:cv:`proxy server port <proxy.config.http."
+"server_ports>` data structures have been initialized but before connections "
+"are accepted on those ports. The sockets corresponding to the ports may or "
+"may not be open depending on how the :program:`traffic_server` process was "
+"invoked. Other API functions that depend on server ports should be called "
+"from this hook and not :func:`TSPluginInit`."
+msgstr ""
+":ts:cv:`プロキシーサーバーポート <proxy.config.http.server_ports>` データ構"
+"造が初期化された後、接続がそれらのポート上で accept される前に呼ばれます。"
+"ポートに対応するソケットは :program:`traffic_server` プロセスがどのように起"
+"動されたかによって open されることもされないこともあります。サーバーポートに"
+"依存するその他の API 関数は :func:`TSPluginInit` ではなくこのフックから呼ば"
+"れるべきです。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:45
+msgid ""
+"Invoked with the event `TS_EVENT_LIFECYCLE_PORTS_INITIALIZED` and `NULL` "
+"data."
+msgstr ""
+"`TS_EVENT_LIFECYCLE_PORTS_INITIALIZED` イベントと `NULL` データとともに呼び"
+"出されます。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:53
+msgid "`TS_LIFECYCLE_PORTS_READY_HOOK`"
+msgstr "`TS_LIFECYCLE_PORTS_READY_HOOK`"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:48
+msgid ""
+"Called after enabling connections on the proxy server ports. Because "
+"Traffic Server is threaded this may or may not be called before any "
+"connections are accepted. The hook code may assume that any connection to "
+"Traffic Server started after this hook is called will be accepted by "
+"Traffic Server, making this a convenient place to signal external processes "
+"of that."
+msgstr ""
+"プロキシーサーバーポート上での接続の有効化の後に呼ばれます。Traffic Server "
+"はスレッドで動作するので、接続を受け付ける前に呼ばれることも、そうでないこと"
+"もあります。フックコードはこのフックが呼ばれた後に開始された Traffic Server "
+"に対する接続が Traffic Server によって accept されると仮定し、そのことを外部"
+"プロセスに通知する便利な場所とできます。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:53
+msgid ""
+"Invoked with the event `TS_EVENT_LIFECYCLE_PORTS_READY` and `NULL` data."
+msgstr ""
+"`TS_EVENT_LIFECYCLE_PORTS_READY` イベントと `NULL` データとともに呼び出され"
+"ます。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:58
+msgid "`TS_LIFECYCLE_CACHE_READY_HOOK`"
+msgstr "`TS_LIFECYCLE_CACHE_READY_HOOK`"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:56
+msgid "Called after Traffic Server cache initialization has finished."
+msgstr "Traffic Server のキャッシュの初期化が完了した後に呼ばれます。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:58
+msgid ""
+"Invoked with the event `TS_EVENT_LIFECYCLE_CACHE_READY` and `NULL` data."
+msgstr ""
+"`TS_EVENT_LIFECYCLE_CACHE_READY` イベントと `NULL` データとともに呼び出され"
+"ます。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:61
+msgid "Ordering"
+msgstr "順番"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:63
+msgid ""
+"`TS_LIFECYCLE_PORTS_INITIALIZED_HOOK` will always be called before "
+"`TS_LIFECYCLE_PORTS_READY_HOOK`."
+msgstr ""
+"`TS_LIFECYCLE_PORTS_INITIALIZED_HOOK` は常に "
+"`TS_LIFECYCLE_PORTS_READY_HOOK` の前に呼び出されます。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:66
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:68
+msgid ""
+"The following example demonstrates how to correctly use :func:"
+"`TSNetAcceptNamedProtocol`, which requires the proxy ports to be "
+"initialized and therefore does not work if called from :func:`TSPluginInit` "
+"directly. ::"
+msgstr ""
+"次の例は :func:`TSNetAcceptNamedProtocol` を正しく使用する方法、つまりプロキ"
+"シーポートが初期化され :func:`TSPluginInit` から直接呼び出された場合に動作し"
+"ないようにする方法を説明しています。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:100
+msgid "History"
+msgstr "歴史"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:102
+msgid ""
+"Lifecycle hooks were introduced to solve process initialization ordering "
+"issues (`TS-1487 <https://issues.apache.org/jira/browse/TS-1487>`_). "
+"Different API calls required different modules of Traffic Server to be "
+"initialized for the call to work, but others did not work that late in "
+"initialization, which was problematic because all of them could effectively "
+"only be called from :func:`TSPluginInit` . The solution was to move :func:"
+"`TSPluginInit` as early as possible in the process initialization and "
+"provide hooks for API calls that needed to be invoked later which served "
+"essentially as additional pluging initialization points."
+msgstr ""
+"ライフサイクルフックはプロセスの初期化順の課題を解決するために登場しました "
+"(`TS-1487 <https://issues.apache.org/jira/browse/TS-1487>`_) 。異なる API の"
+"呼び出しは Traffic Server の異なるモジュールが初期化されることを要求していま"
+"したが、初期化の終盤のものは動作せず、事実上 :func:`TSPluginInit` からのみ呼"
+"び出すことが可能だったので問題となっていました。その解決方法は :func:"
+"`TSPluginInit` をプロセスの初期化の可能な限り早い位置に移し、本来は追加のプ"
+"ラグイン初期化ポイントとして提供され後で呼び出される必要のあった API 呼び出"
+"しのためにフックを提供することでした。"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:108
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSLifecycleHookAdd.en.rst:109
+msgid ":manpage:`TSAPI(3ts)`, :manpage:`TSContCreate(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)` 、\\ :manpage:`TSContCreate(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSMBufferCreate.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSMBufferCreate.en.po
new file mode 100644
index 00000000..863b9993
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSMBufferCreate.en.po
@@ -0,0 +1,119 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:21
+msgid "TSMBufferCreate"
+msgstr "TSMBufferCreate"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:26
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:33
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:35
+msgid ""
+"The marshal buffer or :type:`TSMBuffer` is a heap data structure that "
+"stores parsed URLs, MIME headers and HTTP headers. You can allocate new "
+"objects out of marshal buffers, and change the values within the marshal "
+"buffer. Whenever you manipulate an object, you require the handle to the "
+"object (:type:`TSMLoc`) and the marshal buffer containing the object (:type:"
+"`TSMBuffer`)."
+msgstr ""
+"マーシャルバッファー すなわち :type:`TSMBuffer` はパースされた URL 、MIME "
+"ヘッダー、HTTP ヘッダーを格納するヒープデータ構造です。マーシャルバッファー"
+"の外で新しいオブジェクトを割り当て、その値をマーシャルバッファー内で変更する"
+"ことができます。オブジェクトを操作するときにはいつでも、オブジェクト (:type:"
+"`TSMLoc`) のハンドルとオブジェクトを含んでいるマーシャルバッファー (:type:"
+"`TSMBuffer`) が必要になります。"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:41
+msgid ""
+"Any marshal buffer fetched by :func:`TSHttpTxn*Get` will be used by other "
+"parts of the system. Be careful not to destroy these shared, transaction "
+"marshal buffers."
+msgstr ""
+":func:`TSHttpTxn*Get` によって取得されたすべてのマーシャルバッファーはシステ"
+"ムの他の場所で使用されます。これらの共有されたトランザクションマーシャルバッ"
+"ファーを破棄さないよう気をつけてください。"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:44
+msgid ""
+":func:`TSMBufferCreate` creates a new marshal buffer and initializes the "
+"reference count. :func:`TSMBufferDestroy` Ignores the reference count and "
+"destroys the marshal buffer bufp. The internal data buffer associated with "
+"the marshal buffer is also destroyed if the marshal buffer allocated it."
+msgstr ""
+":func:`TSMBufferCreate` は新しいマーシャルバッファーを作成し参照数を初期化し"
+"ます。:func:`TSMBufferDestroy` は参照数を無視してマーシャルバッファー bufp "
+"を破棄します。マーシャルバッファーに紐付けられた内部データバッファーがマー"
+"シャルバッファーによって割り当てられていた場合はそれも破棄されます。"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:50
+msgid ""
+":func:`TSHandleMLocRelease` Releases the :type:`TSMLoc` mloc created from "
+"the :type:`TSMLoc` parent. If a :type:`TSMLoc` is obtained from a "
+"transaction, it does not have a parent :type:`TSMLoc`. Use the the "
+"constant :data:`TS_NULL_MLOC` as its parent."
+msgstr ""
+":func:`TSHandleMLocRelease` は :type:`TSMLoc` parent で作成された :type:"
+"`TSMLoc` mloc を解放します。:type:`TSMLoc` がトランザクションから取得された"
+"場合は parent :type:`TSMLoc` を持っていません。定数 :data:`TS_NULL_MLOC` を "
+"parent として使用してください。"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:56
+msgid "Return values"
+msgstr "戻り値"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:58
+msgid ""
+":func:`TSMBufferDestroy` and :func:`TSHandleMLocRelease` return :data:"
+"`TS_SUCCESS` on success, or :data:`TS_ERROR` on failure. :func:"
+"`TSMBufferCreate` returns the new :type:`TSMBuffer`."
+msgstr ""
+":func:`TSMBufferDestroy` と :func:`TSHandleMLocRelease` は 成功時に :data:"
+"`TS_SUCCESS` を返し、失敗時には :data:`TS_ERROR` を返します。:func:"
+"`TSMBufferCreate` は新しい :type:`TSMBuffer` を返します。"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:63
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:93
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSMBufferCreate.en.rst:95
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSMimeHdrFieldValueStringGet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSMimeHdrFieldValueStringGet.en.po
new file mode 100644
index 00000000..6b3fe326
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSMimeHdrFieldValueStringGet.en.po
@@ -0,0 +1,132 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: 2014-02-01 15:41+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:21
+msgid "TSMimeHdrFieldValueStringGet"
+msgstr "TSMimeHdrFieldValueStringGet"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:25
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:37
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:39
+msgid ""
+"MIME headers and fields can be components of request headers, response "
+"headers, or standalone headers created within a Traffic Server plugin. The "
+"functions here are all used to access header values of specific types, but "
+"it is up to the caller to know if a header has appropriate semantics for "
+"the API used. For all but :func:`TSMimeHdrFieldValueStringGet`, an "
+"appropriate data conversion algorithm is applied to the header field string."
+msgstr ""
+"MIME ヘッダーとフィールドはリクエストヘッダーやレスポンスヘッダー、または "
+"Traffic Server プラグイン中で作られたスタンドアローンヘッダーを構成すること"
+"ができます。この関数は全て特定の型のヘッダーの値にアクセスするために使用され"
+"ますが、ヘッダーが API の使用に適切な意味を持つかどうかは呼び出し元によりま"
+"す。 :func:`TSMimeHdrFieldValueStringGet` 以外では適切なデータ変換アルゴリズ"
+"ムがヘッダーフィールド文字列に適用されます。"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:47
+msgid ""
+"All the APIs take a :type:`TSMBuffer` marshal buffer argument, and a :type:"
+"`TSMLoc` argument indicating the location of the HTTP headers. The "
+"required :data:`field` argument is the locator of a specific header value, "
+"as returned by an accessor function such as :func:`TSMimeHdrFieldFind`."
+msgstr ""
+"全ての API は :type:`TSMBuffer` マーシャルバッファー引数と HTTP ヘッダーの場"
+"所を指し示す :type:`TSMLoc` 引数を受け取ります。必須の :data:`field` 引数"
+"は :func:`TSMimeHdrFieldFind` のようなアクセッサ関数から返される特定のヘッ"
+"ダーの値を保管するものです。"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:53
+msgid ""
+"Within the header field, comma-separated values can be retrieved with an "
+"index (:data:`idx`) ranging from 0 to the maximum number of fields for this "
+"value; this maximum is retrieved using :func:`TSMimeHdrFieldValuesCount`. "
+"An :data:`idx` value of ``-1`` has the semantics of retrieving the entire "
+"header value, regardless of how many comma-separated values there are. If a "
+"header is not comma-separated, an :data:`idx` of :data:`0` or :data:`-1` "
+"are the same, but the latter is preferred."
+msgstr ""
+"ヘッダーフィールドの中で、コンマで分けられた値は 0 からこの値のフィールドの"
+"最大値の間のインデックス ( :data:`idx` ) で取得することができます。この最大"
+"値は :func:`TSMimeHdrFieldValuesCount` で取得されます。 ``-1`` の :data:"
+"`idx` 値はコンマで分けられた値がいくつあるかを考慮せずに、全てのヘッダーの値"
+"を取得する意味を持ちます。ヘッダーがコンマで分けられていない場合、:data:`0` "
+"と :data:`-1` の :data:`idx` は同じですが、後者が好ましいです。"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:61
+msgid ""
+":func:`TSMimeHdrFieldValueStringGet` returns a pointer to the header value, "
+"and populated :data:`value_len_ptr` with the length of the value in bytes. "
+"The returned header value is not NUL-terminated."
+msgstr ""
+":func:`TSMimeHdrFieldValueStringGet` はヘッダーの値へのポインターとバイト単"
+"位での値の長さで満たされた :data:`value_len_ptr` を返します。返されたヘッ"
+"ダーの値は NUL 終端ではありません。"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:66
+msgid "Return values"
+msgstr "戻り値"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:68
+msgid ""
+"All functions returns the header value with a type matching the respective "
+"function name. Using :func:`TSMimeHdrFieldValueDateGet` on a header which "
+"does not have date-time semantics always returns :data:`0`."
+msgstr ""
+"全ての関数はヘッダーの値をそれぞれの関数名にマッチした型で返します。 date-"
+"time セマンティクスを持たないヘッダーでの :func:"
+"`TSMimeHdrFieldValueDateGet` の使用は常に :data:`0` を返します。"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:73
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:75
+msgid "This examples show how to retrieve and copy a specific header."
+msgstr "この例はどのように特定のヘッダーを取得しコピーするかを示しています。"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:109
+msgid "See also"
+msgstr "参照"
+
+#: ../../reference/api/TSMimeHdrFieldValueStringGet.en.rst:111
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSMBufferCreate(3ts)`, :manpage:"
+"`TSMimeHdrFieldValuesCount(3ts)`"
+msgstr ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSMBufferCreate(3ts)`, :manpage:"
+"`TSMimeHdrFieldValuesCount(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSPluginInit.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSPluginInit.en.po
new file mode 100644
index 00000000..a893113c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSPluginInit.en.po
@@ -0,0 +1,92 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSPluginInit.en.rst:21
+msgid "TSPluginInit"
+msgstr "TSPluginInit"
+
+#: ../../reference/api/TSPluginInit.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSPluginInit.en.rst:26
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSPluginInit.en.rst:32
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSPluginInit.en.rst:34
+msgid ""
+":func:`TSPluginInit` must be defined by all plugins. Traffic Server calls "
+"this initialization routine when it loads the plugin and sets argc and argv "
+"appropriately based on the values in plugin.config. argc is a count of the "
+"number of arguments in the argument vector, argv. The count is at least one "
+"because the first argument in the argument vector is the plugins name, "
+"which must exist in order for the plugin to be loaded. argv is the vector "
+"of arguments. The number of arguments in the vector is argc, and argv[0] "
+"always contains the name of the plugin shared library.  :func:"
+"`TSPluginRegister` registers the appropriate SDK version for your plugin.  "
+"Use this function to make sure that the version of Traffic Server on which "
+"your plugin is running supports the plugin."
+msgstr ""
+":func:`TSPluginInit` はすべてのプラグインで定義されなければなりません。 "
+"Traffic Server はプラグインを読み込み argc と argv を plugin.config の値をも"
+"とに適切に設定する際にこの初期化ルーチンを呼びます。argc は引数配列 argv に"
+"ある引数の数です。引数配列の最初の引数はプラグイン名であり、プラグインが読み"
+"込まれるために必ず存在するのでこの数は少なくとも一つになります。argv は引数"
+"の配列です。配列内の引数の数は argc となり、argv[0] は常にプラグイン共有ライ"
+"ブラリの名前を含んでいます。:func:`TSPluginRegister` はプラグインにとって適"
+"切な SDK のバージョンを登録します。プラグインが動作する Traffic Server の"
+"バージョンがそのプラグインをサポートすることを確認するためにこの関数を使用し"
+"てください。"
+
+#: ../../reference/api/TSPluginInit.en.rst:48
+msgid "Return values"
+msgstr "戻り値"
+
+#: ../../reference/api/TSPluginInit.en.rst:50
+msgid ""
+":func:`TSPluginRegister` returns :const:`TS_ERROR` if the plugin "
+"registration failed."
+msgstr ""
+":func:`TSPluginRegister` はプラグインの登録に失敗すると :const:`TS_ERROR` を"
+"返します。"
+
+#: ../../reference/api/TSPluginInit.en.rst:53
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/api/TSPluginInit.en.rst:73
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSPluginInit.en.rst:75
+msgid ":manpage:`TSAPI(3ts)`, :manpage:`TSInstallDirGet(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`, :manpage:`TSInstallDirGet(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSRemap.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSRemap.en.po
new file mode 100644
index 00000000..7e385f3c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSRemap.en.po
@@ -0,0 +1,145 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSRemap.en.rst:21
+msgid "TSRemapInit"
+msgstr "TSRemapInit"
+
+#: ../../reference/api/TSRemap.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSRemap.en.rst:26
+msgid "`#include <ts/ts.h>` `#include <ts/remap.h>`"
+msgstr "`#include <ts/ts.h>` `#include <ts/remap.h>`"
+
+#: ../../reference/api/TSRemap.en.rst:37
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSRemap.en.rst:49
+msgid ""
+":func:`TSRemapInit` is a required entry point. This function will be called "
+"once when Traffic Server loads the plugin. If the optional :func:"
+"`TSRemapDone` entry point is available, Traffic Server will call then when "
+"unloading the remap plugin."
+msgstr ""
+":func:`TSRemapInit` は必須のエントリーポイントです。この関数は Traffic "
+"Serverがプラグインをロードする際に一度だけ呼ばれます。省略可能な :func:"
+"`TSRemapDone` 関数がある場合、Traffic Server は remap プラグインをアンロード"
+"するときにそれを呼び出します。"
+
+#: ../../reference/api/TSRemap.en.rst:54
+msgid ""
+"A remap plugin may be invoked for different remap rules. Traffic Server "
+"will call the entry point each time a plugin is specified in a remap rule. "
+"When a remap plugin instance is no longer required, Traffic Server will "
+"call :func:`TSRemapDeleteInstance`."
+msgstr ""
+"remap プラグインは異なる remap ルールのために呼び出されます。Traffic Server "
+"はプラグインが remap ルールに指定されるたびにエントリーポイントを呼び出しま"
+"す。remap プラグインインスタンスが必要なくなると、Traffic Server は :func:"
+"`TSRemapDeleteInstance` を呼び出します。"
+
+#: ../../reference/api/TSRemap.en.rst:59
+msgid ""
+":func:`TSRemapDoRemap` is called for each HTTP transaction. This is a "
+"mandatory entry point. In this function, the remap plugin may examine and "
+"modify the HTTP transaction."
+msgstr ""
+":func:`TSRemapDoRemap` は各 HTTP トランザクションで呼び出されます。これは必"
+"須のエントリーポイントです。この関数では remap プラグインが HTTP トランザク"
+"ションを検査し変更するかもしれません。"
+
+#: ../../reference/api/TSRemap.en.rst:64
+msgid "Return values"
+msgstr "戻り値"
+
+#: ../../reference/api/TSRemap.en.rst:66
+msgid ""
+":func:`TSRemapInit` and :func:`TSRemapNewInstance` should return :data:"
+"`TS_SUCCESS` on success, and :data:`TS_ERROR` otherwise. A return value of :"
+"data:`TS_ERROR` is unrecoverable."
+msgstr ""
+":func:`TSRemapInit` と :func:`TSRemapNewInstance` は成功時に :data:"
+"`TS_SUCCESS` を、それ以外の時には :data:`TS_ERROR` を返すべきです。戻り値 :"
+"data:`TS_ERROR` は回復不可能です。"
+
+#: ../../reference/api/TSRemap.en.rst:70
+msgid ""
+":func:`TSRemapDoRemap` returns a status code that indicates whether the "
+"HTTP transaction has been modified and whether Traffic Server should "
+"continue to evaluate the chain of remap plugins. If the transaction was "
+"modified, the plugin should return :data:`TSREMAP_DID_REMAP` or :data:"
+"`TSREMAP_DID_REMAP_STOP`; otherwise it should return :data:"
+"`TSREMAP_NO_REMAP` or :data:`TSREMAP_NO_REMAP_STOP`. If Traffic Server "
+"should not send the transaction to subsequent plugins in the remap chain, "
+"return :data:`TSREMAP_NO_REMAP_STOP` or :data:`TSREMAP_DID_REMAP_STOP`.  "
+"Returning :data:`TSREMAP_ERROR` causes Traffic Server to stop evaluating "
+"the remap chain and respond with an error."
+msgstr ""
+":func:`TSRemapDoRemap` は HTTP トランザクションが変更されたかどうか、そして "
+"Traffic Server が remap プラグインの評価を続けるべきかどうかを示すステータス"
+"コードを返します。トランザクションが変更されていた場合、プラグインは:data:"
+"`TSREMAP_DID_REMAP` または :data:`TSREMAP_DID_REMAP_STOP` を返すべきです。そ"
+"れ以外の場合は :data:`TSREMAP_NO_REMAP` または :data:"
+"`TSREMAP_NO_REMAP_STOP` を返すべきです。Traffic Server がトランザクションを "
+"remap チェーンの続きのプラグインに送信すべきではない場合は、:data:"
+"`TSREMAP_NO_REMAP_STOP` または :data:`TSREMAP_DID_REMAP_STOP` を返します。:"
+"data:`TSREMAP_ERROR` を返すと Traffic Server に remap チェーンの評価を止めさ"
+"せ、エラーを返させます。"
+
+#: ../../reference/api/TSRemap.en.rst:83
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSRemap.en.rst:85
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`"
+
+#: ../../reference/api/TSRemap.en.rst:39
+msgid ""
+"The Traffic Server remap interface provides a simplified mechanism for "
+"plugins to manipulate HTTP transactions. A remap plugin is not global; it "
+"is configured on a per-remap rule basis, which enables you to customize how "
+"URLs are redirected based on individual rules in the remap.config file. "
+"Writing a remap plugin consists of implementing one or more of the remap "
+"entry points and configuring the remap.config configuration file to route "
+"the transaction through your plugin. Multiple remap plugins can be "
+"specified for a single remap rule, resulting in a remap plugin chain where "
+"each plugin is given an opportunity to examine the HTTP transaction."
+msgstr ""
+"Traffic Server の remap インターフェースはプラグインが HTTP トランザク"
+"ションを操作するための簡素な仕組みを提供します。remap プラグインは大域的"
+"ではありません。それは remap ルール毎に設定され、remap.config ファイル内"
+"の個々のルールに基づいて URL がどのようにリダイレクトされるかをカスタマイ"
+"ズできるようにしています。一つ以上の remap エントリーポイントを満たすこと"
+"と、トランザクションがプラグインを通るように remap.config を設定すること"
+"から remap プラグインを書くことは成り立っています。複数の remap プラグイ"
+"ンが一つの remap ルールに指定されることもあり、HTTP トランザクションを検"
+"査する機会が各プラグインに与えられる remap プラグインチェーンとなります。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSTrafficServerVersionGet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSTrafficServerVersionGet.en.po
new file mode 100644
index 00000000..2076acc1
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSTrafficServerVersionGet.en.po
@@ -0,0 +1,68 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:21
+msgid "TSTrafficServerVersionGet"
+msgstr "TSTrafficServerVersionGet"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:26
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:34
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:36
+msgid ""
+":func:`TSTrafficServerVersionGet` returns a pointer to a string of "
+"characters that indicates the Traffic Server release version. This string "
+"must not be modified."
+msgstr ""
+":func:`TSTrafficServerVersionGet` は Traffic Server のリリースバージョンを示"
+"す文字列へのポインターを返します。この文字列は変更してはいけません。"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:40
+msgid "The other APIs return an integer version number."
+msgstr "その他の API は整数のバージョン番号を返します。"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:43
+msgid "Example"
+msgstr "例"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:96
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSTrafficServerVersionGet.en.rst:98
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSTypes.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSTypes.en.po
new file mode 100644
index 00000000..29043963
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSTypes.en.po
@@ -0,0 +1,121 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSTypes.en.rst:21
+msgid "TSAPI Types"
+msgstr "TSAPI 型"
+
+#: ../../reference/api/TSTypes.en.rst:24
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSTypes.en.rst:25
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSTypes.en.rst:26
+msgid "`#include <ts/remap.h>`"
+msgstr "`#include <ts/remap.h>`"
+
+#: ../../reference/api/TSTypes.en.rst:29
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSTypes.en.rst:31
+msgid ""
+"The Apache Traffic Server API provides large number of types. Many of them "
+"are specific to a particular API function or function group, but others are "
+"used more widely. Those are described on this page."
+msgstr ""
+"Apache Traffic Server API は多数の型を提供します。それらの多くは特定の API "
+"関数や関数グループに固有のものですが、それ以外はより広範囲で使用されます。そ"
+"れらはこのページで解説されます。"
+
+#: ../../reference/api/TSTypes.en.rst:36
+msgid "An opaque type that represents a Traffic Server :term:`continuation`."
+msgstr "Traffic Server の\\ :term:`継続`\\ を表現する不明瞭な型。"
+
+#: ../../reference/api/TSTypes.en.rst:40
+msgid ""
+"An enumeration that identifies a specific type of hook for HTTP "
+"transactions."
+msgstr "HTTP トランザクション用の特定のタイプのフックを特定する列挙型。"
+
+#: ../../reference/api/TSTypes.en.rst:44
+msgid "An opaque type that represents a Traffic Server :term:`session`."
+msgstr "Traffic Server :term:`session` を表現する不明瞭な型。"
+
+#: ../../reference/api/TSTypes.en.rst:48
+msgid "\"High Resolution Time\""
+msgstr "\"高精度の時間\""
+
+#: ../../reference/api/TSTypes.en.rst:50
+msgid "A 64 bit time value, measured in nanoseconds."
+msgstr "ナノ秒で計られた 64 ビットの時間値。"
+
+#: ../../reference/api/TSTypes.en.rst:54
+msgid ""
+"An opaque type that represents a Traffic Server HTTP :term:`transaction`."
+msgstr "Traffic Server HTTP :term:`transaction` を表現する不明瞭な型。"
+
+#: ../../reference/api/TSTypes.en.rst:58
+msgid ""
+"An enumeration that identifies a :ref:`life cycle hook <ts-lifecycle-hook-"
+"add>`."
+msgstr ":ref:`life cycle hook <ts-lifecycle-hook-add>` を識別する列挙型。"
+
+#: ../../reference/api/TSTypes.en.rst:62
+msgid ""
+"An indicator of the results of an API call. A value of :const:`TS_SUCCESS` "
+"means the call was successful. Any other value indicates a failure and is "
+"specific to the API call."
+msgstr ""
+"API 呼び出しの結果。:const:`TS_SUCCESS` は呼び出しの成功を意味します。その他"
+"の値は失敗を意味し、API 呼び出しに固有のものです。"
+
+#: ../../reference/api/TSTypes.en.rst:67
+msgid ""
+"An enumeration that specifies the type of a value in an internal data "
+"structure that is accessible via the API."
+msgstr "API からアクセス可能な内部データ構造の値の型を表現する列挙型。"
+
+#: ../../reference/api/TSTypes.en.rst:71
+msgid ""
+"The type used internally for an integer. This corresponds to the value :"
+"const:`TS_RECORDDATATYPE_INT` for :type:`TSRecordDataType`."
+msgstr ""
+"内部で整数として使われる型。これは :type:`TSRecordDataType` の :const:"
+"`TS_RECORDDATATYPE_INT` に相当します。"
+
+#: ../../reference/api/TSTypes.en.rst:76
+msgid ""
+"The type used internally for a floating point value. This corresponds to "
+"the value :const:`TS_RECORDDATATYPE_FLOAT` for :type:`TSRecordDataType`."
+msgstr ""
+"内部で浮動小数点の値として使われる型。これは :type:`TSRecordDataType` の :"
+"const:`TS_RECORDDATATYPE_FLOAT` に相当します。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlCreate.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlCreate.en.po
new file mode 100644
index 00000000..c3545528
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlCreate.en.po
@@ -0,0 +1,113 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSUrlCreate.en.rst:22
+msgid "TSUrlCreate"
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:35
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:78
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:37
+msgid ""
+"The URL data structure is a parsed version of a standard internet URL. The "
+"Traffic Server URL API provides access to URL data stored in marshal "
+"buffers. The URL functions can create, copy, retrieve or delete entire "
+"URLs, and retrieve or modify parts of URLs, such as their host, port or "
+"scheme information."
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:43
+msgid ""
+":func:`TSUrlCreate` creates a new URL within the marshal buffer :data:"
+"`bufp`. Release the resulting handle with a call to :func:"
+"`TSHandleMLocRelease`."
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:47
+msgid ""
+":func:`TSUrlClone` copies the contents of the URL at location :data:"
+"`src_url` within the marshal buffer :data:`src_bufp` to a location within "
+"the marshal buffer :data:`dest_bufp`. Release the returned handle with a "
+"call to :func:`TSHandleMLocRelease`."
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:52
+msgid ""
+":func:`TSUrlCopy` copies the contents of the URL at location :data:"
+"`src_url` within the marshal buffer :data:`src_bufp` to the location :data:"
+"`dest_url` within the marshal buffer dest_bufp. :func:`TSUrlCopy` works "
+"correctly even if :data:`src_bufp` and :data:`dest_bufp` point to different "
+"marshal buffers. It is important for the destination URL (its marshal "
+"buffer and :type:`TSMLoc`) to have been created before copying into it."
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:59
+msgid ""
+":func:`TSUrlParse` parses a URL. The :data:`start` pointer is both an input "
+"and an output parameter and marks the start of the URL to be parsed. After "
+"a successful parse, the :data:`start` pointer equals the :data:`end` "
+"pointer. The :data:`end` pointer must be one byte after the last character "
+"you want to parse. The URL parsing routine assumes that everything between :"
+"data:`start` and :data:`end` is part of the URL. It is up to higher level "
+"parsing routines, such as :func:`TSHttpHdrParseReq`, to determine the "
+"actual end of the URL."
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:69
+msgid "Return values"
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:71
+msgid ""
+"The :func:`TSUrlParse` function returns a :type:`TSParseResult`, where :"
+"data:`TS_PARSE_ERROR` indicates an error. Success is indicated by one of :"
+"data:`TS_PARSE_DONE`, :data:`TS_PARSE_OK` or :data:`TS_PARSE_CONT`. The "
+"other APIs all return a :type:`TSReturnCode`, indicating success (:data:"
+"`TS_SUCCESS`) or failure (:data:`TS_ERROR`) of the operation."
+msgstr ""
+
+#: ../../reference/api/TSUrlCreate.en.rst:80
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSMBufferCreate(3ts)`, :manpage:"
+"`TSUrlHostGet(3ts)`, :manpage:`TSUrlHostSet(3ts)`, :manpage:"
+"`TSUrlStringGet(3ts)`, :manpage:`TSUrlPercentEncode(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlHostGet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlHostGet.en.po
new file mode 100644
index 00000000..d9a26370
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlHostGet.en.po
@@ -0,0 +1,100 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSUrlHostGet.en.rst:22
+msgid "TSUrlHostGet"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:40
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:42
+msgid ""
+"The URL data structure is a parsed version of a standard internet URL. The "
+"Traffic Server URL API provides access to URL data stored in marshal "
+"buffers. The URL functions can create, copy, retrieve or delete entire "
+"URLs, and retrieve or modify parts of URLs, such as their host, port or "
+"scheme information."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:48
+msgid ""
+":func:`TSUrlSchemeGet`, :func:`TSUrlUserGet`, :func:`TSUrlPasswordGet`, :"
+"func:`TSUrlHostGet`, :func:`TSUrlHttpParamsGet`, :func:`TSUrlHttpQueryGet` "
+"and :func:`TSUrlHttpFragmentGet` each retrieve an internal pointer to the "
+"specified portion of the URL from the marshall buffer :data:`bufp`. The "
+"length of the returned string is placed in :data:`length` and a pointer to "
+"the URL portion is returned."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:55
+msgid ""
+":func:`TSUrlPortGet` retrieves the port number portion of the URL located "
+"at :data:`offset` within the marshal buffer :data:`bufp`. If there is no "
+"explicit port number in the URL, a canonicalized valued is returned based "
+"on the URL scheme."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:61
+msgid "Return values"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:63
+msgid ""
+"All APIs except :func:`TSUrlPortGet` returns a string, which is not "
+"guaranteed to be NULL terminated. You must therefore always use the :data:"
+"`length` value to determine the actual length of the returned string."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:67
+msgid ""
+":func:`TSUrlPortGet` simply returns the port number as an integer, possibly "
+"canonicalized with :data:`80` for HTTP and :data:`443` for HTTPS schemes. "
+"If there is neither port nor scheme information available in the URL, :data:"
+"`0` is returned."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:73
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostGet.en.rst:75
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSUrlCreate(3ts)`, :manpage:"
+"`TSUrlHostSet(3ts)`, :manpage:`TSUrlStringGet(3ts)`, :manpage:"
+"`TSUrlPercentEncode(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlHostSet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlHostSet.en.po
new file mode 100644
index 00000000..a73dc17c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlHostSet.en.po
@@ -0,0 +1,92 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSUrlHostSet.en.rst:22
+msgid "TSUrlHostSet"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:40
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:42
+msgid ""
+"The URL data structure is a parsed version of a standard internet URL. The "
+"Traffic Server URL API provides access to URL data stored in marshal "
+"buffers. The URL functions can create, copy, retrieve or delete entire "
+"URLs, and retrieve or modify parts of URLs, such as their host, port or "
+"scheme information."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:48
+msgid ""
+":func:`TSUrlSchemeSet`, :func:`TSUrlUserSet`, :func:`TSUrlPasswordSet`, :"
+"func:`TSUrlHostSet`, :func:`TSUrlHttpParamsSet`, :func:`TSUrlHttpQuerySet` "
+"and :func:`TSUrlHttpFragmentSet` each set the specified portion of the URL "
+"located at offset within the marshal buffer :data:`bufp` to the string "
+"value. If :data:`length` is :data:`-1` then these functions assume that "
+"value is NULL-terminated. Otherwise, the length of the :data:`string` value "
+"is taken to be the value of :data:`length`. These functions copy the string "
+"to within :data:`bufp`, so it can be subsequently modified or deleted."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:57
+msgid ""
+":func:`TSUrlPortSet` sets the port number portion of the URL located at :"
+"data:`offset` within the marshal buffer :data:`bufp` to the value port. "
+"Normal canonicalization based on the URL scheme still applies."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:62
+msgid "Return values"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:64
+msgid ""
+"All these APIs returns a :type:`TSReturnCode`, indicating success (:data:"
+"`TS_SUCCESS`) or failure (:data:`TS_ERROR`) of the operation."
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:68
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSUrlHostSet.en.rst:70
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSUrlCreate(3ts)`, :manpage:"
+"`TSUrlHostGet(3ts)`, :manpage:`TSUrlStringGet(3ts)`, :manpage:"
+"`TSUrlPercentEncode(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlPercentEncode.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlPercentEncode.en.po
new file mode 100644
index 00000000..a6e01c89
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlPercentEncode.en.po
@@ -0,0 +1,91 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:22
+msgid "TSUrlPercentEncode"
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:34
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:36
+msgid ""
+"The URL data structure is a parsed version of a standard internet URL. The "
+"Traffic Server URL API provides access to URL data stored in marshal "
+"buffers. The URL functions can create, copy, retrieve or delete entire "
+"URLs, and retrieve or modify parts of URLs, such as their host, port or "
+"scheme information."
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:42
+msgid ""
+":func:`TSUrlPercentEncode` performs percent-encoding of the URL object, "
+"storing the new string in the :data:`dst` buffer. The :data:`length` "
+"parameter will be set to the new (encoded) string length, or :data:`0` if "
+"the encoding failed.  :func:`TSStringPercentEncode` is similar but operates "
+"on a string. If the optional :data:`map` parameter is provided (not :data:"
+"`NULL`) , it should be a map of characters to encode."
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:49
+msgid ""
+":func:`TSStringPercentDecode` perform percent-decoding of the string in "
+"the :data:`str` buffer, writing to the :data:`dst` buffer. The source and "
+"destination can be the same, in which case they overwrite. The decoded "
+"string is always guaranteed to be no longer than the source string."
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:55
+msgid "Return values"
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:57
+msgid ""
+"All these APIs returns a :type:`TSReturnCode`, indicating success (:data:"
+"`TS_SUCCESS`) or failure (:data:`TS_ERROR`) of the operation."
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:61
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSUrlPercentEncode.en.rst:63
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSUrlCreate(3ts)`, :manpage:"
+"`TSUrlHostGet(3ts)`, :manpage:`TSUrlHostSet(3ts)`, :manpage:"
+"`TSUrlStringGet(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlStringGet.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlStringGet.en.po
new file mode 100644
index 00000000..7b0619cb
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSUrlStringGet.en.po
@@ -0,0 +1,88 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSUrlStringGet.en.rst:22
+msgid "TSUrlStringGet"
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:25
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:35
+msgid "Description"
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:37
+msgid ""
+"The URL data structure is a parsed version of a standard internet URL. The "
+"Traffic Server URL API provides access to URL data stored in marshal "
+"buffers. The URL functions can create, copy, retrieve or delete entire "
+"URLs, and retrieve or modify parts of URLs, such as their host, port or "
+"scheme information."
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:43
+msgid ""
+":func:`TSUrlStringGet` constructs a string representation of the URL "
+"located at :data:`offset` within the marshal buffer :data:`bufp`. :func:"
+"`TSUrlStringGet` stores the length of the allocated string in the "
+"parameter :data:`length`. This is the same length that :func:"
+"`TSUrlLengthGet` returns. The returned string is allocated by a call to :"
+"func:`TSmalloc` and must be freed by a call to :func:`TSfree`. If length "
+"is :data:`NULL` then no attempt is made to de-reference it."
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:51
+msgid ""
+":func:`TSUrlLengthGet` calculates the length of the URL located at :data:"
+"`offset` within the marshal buffer bufp as if it were returned as a string. "
+"This length will be the same as the length returned by :func:"
+"`TSUrlStringGet`."
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:56
+msgid ""
+":func:`TSUrlPrint` formats a URL stored in an :type:`TSMBuffer` to an :type:"
+"`TSIOBuffer`."
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:60
+msgid "See also"
+msgstr ""
+
+#: ../../reference/api/TSUrlStringGet.en.rst:62
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSmalloc(3ts)`, :manpage:"
+"`TSUrlCreate(3ts)`, :manpage:`TSUrlHostGet(3ts)`, :manpage:"
+"`TSUrlHostSet(3ts)`, :manpage:`TSUrlPercentEncode(3ts)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/TSmalloc.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/TSmalloc.en.po
new file mode 100644
index 00000000..a443ffef
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/TSmalloc.en.po
@@ -0,0 +1,137 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/TSmalloc.en.rst:22
+msgid "TSmalloc"
+msgstr "TSmalloc"
+
+#: ../../reference/api/TSmalloc.en.rst:25
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/api/TSmalloc.en.rst:27
+msgid "`#include <ts/ts.h>`"
+msgstr "`#include <ts/ts.h>`"
+
+#: ../../reference/api/TSmalloc.en.rst:38
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/api/TSmalloc.en.rst:40
+msgid ""
+"Traffic Server provides a number of routines for allocating and freeing "
+"memory. These routines correspond to similar routines in the C library. For "
+"example, :func:`TSrealloc` behaves like the C library routine :func:"
+"`realloc`. There are two reasons to use the routines provided by Traffic "
+"Server. The first is portability. The Traffic Server API routines behave "
+"the same on all of Traffic Servers supported platforms. For example, :func:"
+"`realloc` does not accept an argument of :data:`NULL` on some platforms. "
+"The second reason is that the Traffic Server routines actually track the "
+"memory allocations by file and line number. This tracking is very "
+"efficient, is always turned on, and is useful for tracking down memory "
+"leaks."
+msgstr ""
+"Traffic Server はメモリの割り当てと解放のための多数のルーチンを提供します。"
+"これらのルーチンは C ライブラリの似たものに対応します。例えば、:func:"
+"`TSrealloc` は C ライブラリルーチンの :func:`realloc` のように振る舞います。"
+"Traffic Server によって提供されるルーチンを使う理由は二つあります。一つ目は"
+"移植性です。Traffic Server API ルーチンは Traffic Server が対応するすべての"
+"プラットフォーム上で同様に振る舞います。例えば、:func:`realloc` はいくつかの"
+"プラットフォームで :data:`NULL` の引数を受け付けません。二つ目の理由は "
+"Traffic Server ルーチンが実はファイルと行番号でメモリの割り当てを追跡してい"
+"ることです。この追跡はとても優れており、常に有効化され、メモリーリークを探し"
+"出すのに便利です。"
+
+#: ../../reference/api/TSmalloc.en.rst:51
+msgid ""
+":func:`TSmalloc` returns a pointer to size bytes of memory allocated from "
+"the heap. Traffic Server uses :func:`TSmalloc` internally for memory "
+"allocations. Always use :func:`TSfree` to release memory allocated by :func:"
+"`TSmalloc`; do not use :func:`free`."
+msgstr ""
+":func:`TSmalloc` はヒープに割り当てられた size バイトのメモリを指すポイン"
+"ターを返します。Traffic Server メモリ割り当てのために内部で :func:"
+"`TSmalloc` を使用します。:func:`TSmalloc` で割り当てられたメモリーを解放する"
+"には常に :func:`TSfree` を使用し、:func:`free` は使用しないでください。"
+
+#: ../../reference/api/TSmalloc.en.rst:67
+msgid ""
+":func:`TSstrlcpy` copies up to size - 1 characters from the NUL-terminated "
+"string src to dst, NUL-terminating the result."
+msgstr ""
+":func:`TSstrlcpy` は NUL 終端文字列 src から dst に size - 1 文字までコピー"
+"し、結果を NUL 終端します。`"
+
+#: ../../reference/api/TSmalloc.en.rst:70
+msgid ""
+":func:`TSstrlcat` appends the NUL-terminated string src to the end of dst. "
+"It will append at most size - strlen(dst) - 1 bytes, NUL-terminating the "
+"result."
+msgstr ""
+":func:`TSstrlcat` は NUL 終端文字列 src を dst の終わりに追加します。これは"
+"最大で size - strlen(dst) - 1 を追加し、結果を NUL 終端します。"
+
+#: ../../reference/api/TSmalloc.en.rst:74
+msgid ""
+":func:`TSfree` releases the memory allocated by :func:`TSmalloc` or :func:"
+"`TSrealloc`. If ptr is :data:`NULL`, :func:`TSfree` does no operation."
+msgstr ""
+":func:`TSfree` は :func:`TSmalloc` または :func:`TSrealloc` によって割り当て"
+"られたメモリーを解放します。ptr が :data:`NULL` の場合、:func:`TSfree` は何"
+"も行いません。"
+
+#: ../../reference/api/TSmalloc.en.rst:78
+msgid "See also"
+msgstr "参考"
+
+#: ../../reference/api/TSmalloc.en.rst:79
+msgid ":manpage:`TSAPI(3ts)`"
+msgstr ":manpage:`TSAPI(3ts)`"
+
+#: ../../reference/api/TSmalloc.en.rst:56
+msgid ""
+":func:`TSstrdup` returns a pointer to a new string that is a duplicate of "
+"the string pointed to by str. The memory for the new string is allocated "
+"using :func:`TSmalloc` and should be freed by a call to :func:`TSfree`.  :"
+"func:`TSstrndup` returns a pointer to a new string that is a duplicate of "
+"the string pointed to by str and size bytes long. The new string will be "
+"NUL-terminated. This API is very useful for transforming non NUL-terminated "
+"string values returned by APIs such as :func:`TSMimeHdrFieldValueStringGet` "
+"into NUL-terminated string values. The memory for the new string is "
+"allocated using :func:`TSmalloc` and should be freed by a call to :func:"
+"`TSfree`."
+msgstr ""
+":func:`TSstrdup` は str で指し示された文字列を複製した新しい文字列を指す"
+"ポインターを返します。新しい文字列のメモリーは :func:`TSmalloc` を使用し"
+"て割り当てられ、:func:`TSfree` の呼び出しに酔って解放されるべきです。:"
+"func:`TSstrndup` は size バイトの長さの str で指し示された文字列を複製し"
+"た新しい文字列を指すポインターを返します。新しい文字列は NUL 終端されま"
+"す。この API は :func:`TSMimeHdrFieldValueStringGet` などによって返された"
+"非 NUL 終端文字列値を NUL 終端文字列値に変換するのにとても便利です。新し"
+"い文字列のメモリーは :func:`TSmalloc` を使用して割り当てられ、:func:"
+"`TSfree` の呼び出しに酔って解放されるべきです。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/api/index.en.po b/doc/locale/ja/LC_MESSAGES/reference/api/index.en.po
new file mode 100644
index 00000000..0267427c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/api/index.en.po
@@ -0,0 +1,31 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/api/index.en.rst:2
+msgid "API Reference"
+msgstr "API リファレンス"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/index.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/index.en.po
new file mode 100644
index 00000000..599e91f3
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/index.en.po
@@ -0,0 +1,31 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2014-01-11 20:10+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/index.en.rst:19
+msgid "Command Reference"
+msgstr "コマンドリファレンス"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_cop.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_cop.en.po
new file mode 100644
index 00000000..5ce5deca
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_cop.en.po
@@ -0,0 +1,84 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_cop.en.rst:20
+msgid "traffic_cop"
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:27
+msgid ""
+":program:`traffic_cop` is a watchdog program that is responsible for "
+"starting :program:`traffic_manager` and :program:`traffic_server` and "
+"monitoring them for responsiveness. If either of these processes are "
+"determined to be unresponsive, :program:`traffic_cop` will kill and restart "
+"them."
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:33
+msgid ""
+"On Linux, :program:`traffic_cop` will also monitor available memory and "
+"swap space, restarting the watched processes if the available memory falls "
+"below a minimum threshold. The memory thresholds can be configured with "
+"the :ts:cv:`proxy.config.cop.linux_min_swapfree_kb` and :ts:cv:`proxy."
+"config.cop.linux_min_memfree_kb` variables."
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:39
+msgid "The following options are available:"
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:43
+msgid ""
+"Kill children using ``SIGSTOP`` instead of ``SIGKILL``. This option is "
+"primarily for debugging."
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:48
+msgid "Print version information and exit."
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:50
+msgid ""
+":program:`traffic_cop` ordinarily logs to syslog, however for debugging "
+"purposes, the ``--enable-cop-debug`` build option causes it to log trace "
+"messages to :file:`/tmp/traffic_cop.trace`."
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:56
+msgid "See also"
+msgstr ""
+
+#: ../../reference/commands/traffic_cop.en.rst:58
+msgid ""
+":manpage:`syslog(1)`, :manpage:`traffic_manager(8)`, :manpage:"
+"`traffic_server(8)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_line.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_line.en.po
new file mode 100644
index 00000000..9cbdd683
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_line.en.po
@@ -0,0 +1,217 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2014-01-15 23:12+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_line.en.rst:20
+msgid "traffic_line"
+msgstr "traffic_line"
+
+#: ../../reference/commands/traffic_line.en.rst:23
+msgid "Synopsis"
+msgstr "概要"
+
+#: ../../reference/commands/traffic_line.en.rst:26
+msgid ":program:`traffic_line` [options]"
+msgstr ":program:`traffic_line` [options]"
+
+#: ../../reference/commands/traffic_line.en.rst:31
+msgid "Description"
+msgstr "解説"
+
+#: ../../reference/commands/traffic_line.en.rst:33
+msgid ""
+":program:`traffic_line` is used to execute individual Traffic Server "
+"commands and to script multiple commands in a shell."
+msgstr ""
+":program:`traffic_line` はシェルの中で単一の Traffic Server コマンドを実行し"
+"たり、複数のコマンドを書くために使われます。"
+
+#: ../../reference/commands/traffic_line.en.rst:37
+msgid "Options"
+msgstr "オプション"
+
+#: ../../reference/commands/traffic_line.en.rst:43
+msgid ""
+"Bounce all Traffic Server nodes in the cluster. Bouncing Traffic Server "
+"shuts down and immediately restarts Traffic Server, node-by-node."
+msgstr ""
+"クラスター内の全ての Traffic Server ノードを再起動します。ノードからノード"
+"へ Traffic Server のバウンシングはシャットダウンし、すぐに Traffic Server を"
+"再起動します。"
+
+#: ../../reference/commands/traffic_line.en.rst:49
+msgid ""
+"Bounce Traffic Server on the local node. Bouncing Traffic Server shuts down "
+"and immediately restarts the Traffic Server node."
+msgstr ""
+"ローカルノードで Traffic Server を再起動させます。Traffic Server のバウンス"
+"はシャットダウンし、すぐに Traffic Server ノードを再起動します。"
+
+#: ../../reference/commands/traffic_line.en.rst:54
+msgid "Clears accumulated statistics on all nodes in the cluster."
+msgstr "クラスター内の全てのノードに蓄積された統計をクリアします。"
+
+#: ../../reference/commands/traffic_line.en.rst:58
+msgid "Clears accumulated statistics on the local node."
+msgstr "ローカルノードに蓄積された統計をクリアします。"
+
+#: ../../reference/commands/traffic_line.en.rst:62
+msgid "Print usage information and exit."
+msgstr "使い方の情報を表示し、終了します。"
+
+#: ../../reference/commands/traffic_line.en.rst:66
+msgid ""
+"Restart the :program:`traffic_manager` and :program:`traffic_server` "
+"processes on the local node."
+msgstr ""
+"ローカルノードの :program:`traffic_manager` と :program:`traffic_server` プ"
+"ロセスを再起動します。"
+
+#: ../../reference/commands/traffic_line.en.rst:71
+msgid ""
+"Restart the :program:`traffic_manager` process and the :program:"
+"`traffic_server` process on all the nodes in a cluster."
+msgstr ""
+"クラスター内の全てのノードの :program:`traffic_manager` プロセスと :program:"
+"`traffic_server` プロセスを再起動します。"
+
+#: ../../reference/commands/traffic_line.en.rst:76
+msgid ""
+"Display specific performance statistics or a current configuration setting."
+msgstr "特定のパフォーマンス統計や現在の設定を表示します。"
+
+#: ../../reference/commands/traffic_line.en.rst:81
+msgid ""
+"Set the configuration variable named `VAR`. The value of the configuration "
+"variable is given by the :option:`traffic_line -v` option. Refer to the :"
+"file:`records.config` documentation for a list of the configuration "
+"variables you can specify."
+msgstr ""
+"`VAR` という名前の設定変数をセットします。設定変数の値は :option:"
+"`traffic_line -v` オプションで与えられます。記述できる設定変数のリストについ"
+"ては :file:`records.config` のドキュメントを参照してください。"
+
+#: ../../reference/commands/traffic_line.en.rst:88
+msgid "Shut down Traffic Server on the local node."
+msgstr "ローカルノードの Traffic Server をシャットダウンします。"
+
+#: ../../reference/commands/traffic_line.en.rst:92
+msgid "Start Traffic Server on the local node."
+msgstr "ローカルノードの Traffic Server を起動します。"
+
+#: ../../reference/commands/traffic_line.en.rst:96
+msgid "Specify the value to set when setting a configuration variable."
+msgstr "設定変数を設定する際の値を記述します。"
+
+#: ../../reference/commands/traffic_line.en.rst:100
+msgid "Print version information and exit."
+msgstr "バージョン情報を表示して、終了します。"
+
+#: ../../reference/commands/traffic_line.en.rst:104
+msgid ""
+"Initiate a Traffic Server configuration file reread. Use this command to "
+"update the running configuration after any configuration file modification."
+msgstr ""
+"Traffic Server 設定ファイルの再読み込みを始めます。設定ファイルを変更した後"
+"で、実行する設定を更新するのにこのコマンドを使用してください。"
+
+#: ../../reference/commands/traffic_line.en.rst:110
+msgid "Reset performance statistics to zero across the cluster."
+msgstr "クラスター内のパフォーマンス統計をゼロにリセットします。"
+
+#: ../../reference/commands/traffic_line.en.rst:114
+msgid "Reset performance statistics to zero on the local node."
+msgstr "ローカルノードのパフォーマンス統計をゼロにリセットします。"
+
+#: ../../reference/commands/traffic_line.en.rst:141
+msgid "Performance Statistics"
+msgstr "パフォーマンス統計"
+
+#: ../../reference/commands/traffic_line.en.rst:145
+msgid ""
+"The :option:`traffic_line -r` option accepts the following variable names::"
+msgstr ":option:`traffic_line -r` オプションは次の変数名を受け入れます。"
+
+#: ../../reference/commands/traffic_line.en.rst:797
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/commands/traffic_line.en.rst:799
+msgid "Configure Traffic Server to log in Squid format::"
+msgstr "Squid フォーマットでログを取るように Traffic Server を設定するには"
+
+#: ../../reference/commands/traffic_line.en.rst:806
+msgid "Files"
+msgstr "ファイル"
+
+#: ../../reference/commands/traffic_line.en.rst:808
+msgid ":file:`records.config`, :file:`ssl_multicert.config`"
+msgstr ":file:`records.config`、 :file:`ssl_multicert.config`"
+
+#: ../../reference/commands/traffic_line.en.rst:811
+msgid "See also"
+msgstr "参照"
+
+#: ../../reference/commands/traffic_line.en.rst:813
+msgid ":manpage:`records.config(5)`"
+msgstr ":manpage:`records.config(5)`"
+
+#: ../../reference/commands/traffic_line.en.rst:118
+msgid ""
+"Mark a cache storage device as offline. The storage is identified by a "
+"*path* which must match exactly a path specified in :file:`storage.config`. "
+"This removes the storage from the cache and redirects requests that would "
+"have used this storage to other storage. This has exactly the same effect "
+"as a disk failure for that storage. This does not persist across restarts "
+"of the :program:`traffic_server` process."
+msgstr ""
+"キャッシュストレージデバイスをオフラインとしてマークします。ストレージは "
+":file:`storage.config` 内で指定されているパスと完全に一致している \\ *パス*\\ "
+"によって特定されます。これはストレージをキャッシュから取り除き、このストレージ"
+"ではなく他のストレージを使うようにリクエストをリダイレクトします。これはその"
+"ストレージが故障したときとまったく同じ効果を持っています。これは "
+":program:`traffic_server` プロセスのリスタートをまたいで持続しません。"
+
+#: ../../reference/commands/traffic_line.en.rst:125
+msgid "List all alarm events that have not been acknowledged (cleared)."
+msgstr "承認 ( 消去 ) されていないすべてのアラームイベントを一覧表示します。"
+
+#: ../../reference/commands/traffic_line.en.rst:129
+msgid ""
+"Clear (acknowledge) an alarm event. The arguments are \"all\" for all "
+"current alarms, a specific alarm number (e.g. ''1''), or an alarm string "
+"identifier (e.g. ''MGMT_ALARM_PROXY_CONFIG_ERROR'')."
+msgstr ""
+"アラームイベントを消去 ( 承認 ) します。引数は \"all\" で現在のすべての"
+"アラーム、特定のアラーム番号 ( 例 ``1``) 、もしくはアラーム文字列識別子 "
+"( 例 ''MGMT_ALARM_PROXY_CONFIG_ERROR'') です。"
+
+#: ../../reference/commands/traffic_line.en.rst:135
+msgid ""
+"Show the current proxy server status, indicating if we're running or not."
+msgstr ""
+"プロキシーサーバーが実行中かどうかを示している現在の状態を表示します。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_logcat.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_logcat.en.po
new file mode 100644
index 00000000..4f29249a
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_logcat.en.po
@@ -0,0 +1,131 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_logcat.en.rst:20
+msgid "traffic_logcat"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:23
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:25
+msgid ""
+":program:`traffic_logcat` [-o output-file | -a] [-CEhSVw2] [input-file ...]"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:31
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:33
+msgid ""
+"To analyse a binary log file using standard tools, you must first convert "
+"it to ASCII. :program:`traffic_logcat` does exactly that."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:37
+msgid "Options"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:41
+msgid "Specifies where the command output is directed."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:45
+msgid ""
+"Automatically generates the output filename based on the input filename. If "
+"the input is from stdin, then this option is ignored. For example::"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:51
+msgid "generates::"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:57
+msgid "Follows the file, like :manpage:`tail(1)` ``-f``"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:61
+msgid ""
+"Attempts to transform the input to Netscape Common format, if possible."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:65
+msgid ""
+"Attempts to transform the input to Netscape Extended format, if possible."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:69
+msgid "Attempts to transform the input to Squid format, if possible."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:73
+msgid ""
+"Attempt to transform the input to Netscape Extended-2 format, if possible."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:81
+msgid "Print usage information and exit."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:85
+msgid "Print version information and exit."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:88
+msgid ""
+"Use only one of the following options at any given time: ``-S``, ``-C``, ``-"
+"E``, or ``-2``."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:90
+msgid ""
+"If no input files are specified, then :program:`traffic_logcat` reads from "
+"the standard input (``stdin``). If you do not specify an output file, then :"
+"program:`traffic_logcat` writes to the standard output (``stdout``)."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:94
+msgid ""
+"For example, to convert a binary log file to an ASCII file, you can use "
+"the :program:`traffic_logcat` command with either of the following options "
+"below::"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:101
+msgid "The binary log file is not modified by this command."
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:104
+msgid "See Also"
+msgstr ""
+
+#: ../../reference/commands/traffic_logcat.en.rst:106
+msgid ":manpage:`tail(1)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_logstats.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_logstats.en.po
new file mode 100644
index 00000000..221886c3
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_logstats.en.po
@@ -0,0 +1,43 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_logstats.en.rst:20
+msgid "traffic_logstats"
+msgstr ""
+
+#: ../../reference/commands/traffic_logstats.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/traffic_logstats.en.rst:63
+msgid "Print usage information and exit."
+msgstr ""
+
+#: ../../reference/commands/traffic_logstats.en.rst:67
+msgid "Print version information and exit."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_manager.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_manager.en.po
new file mode 100644
index 00000000..12699fc5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_manager.en.po
@@ -0,0 +1,39 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_manager.en.rst:20
+msgid "traffic_manager"
+msgstr ""
+
+#: ../../reference/commands/traffic_manager.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/traffic_manager.en.rst:43
+msgid "Environment"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_server.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_server.en.po
new file mode 100644
index 00000000..104bfb11
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_server.en.po
@@ -0,0 +1,47 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_server.en.rst:20
+msgid "traffic_server"
+msgstr ""
+
+#: ../../reference/commands/traffic_server.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/traffic_server.en.rst:69
+msgid "Print usage information and exit."
+msgstr ""
+
+#: ../../reference/commands/traffic_server.en.rst:73
+msgid "Print version information and exit."
+msgstr ""
+
+#: ../../reference/commands/traffic_server.en.rst:76
+msgid "Environment"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_shell.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_shell.en.po
new file mode 100644
index 00000000..00bc50bc
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_shell.en.po
@@ -0,0 +1,39 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_shell.en.rst:20
+msgid "traffic_shell"
+msgstr ""
+
+#: ../../reference/commands/traffic_shell.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/traffic_shell.en.rst:29
+msgid "Print version information and exit."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_top.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_top.en.po
new file mode 100644
index 00000000..056a998f
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/traffic_top.en.po
@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/traffic_top.en.rst:20
+msgid "traffic_top"
+msgstr ""
+
+#: ../../reference/commands/traffic_top.en.rst:25
+msgid "Description"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/tspush.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/tspush.en.po
new file mode 100644
index 00000000..9836c86f
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/tspush.en.po
@@ -0,0 +1,39 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/tspush.en.rst:20
+msgid "tspush"
+msgstr ""
+
+#: ../../reference/commands/tspush.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/tspush.en.rst:35
+msgid "Print usage information and exit."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/tstop.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/tstop.en.po
new file mode 100644
index 00000000..63a07ad5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/tstop.en.po
@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/tstop.en.rst:20
+msgid "tstop"
+msgstr ""
+
+#: ../../reference/commands/tstop.en.rst:25
+msgid "Description"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/commands/tsxs.en.po b/doc/locale/ja/LC_MESSAGES/reference/commands/tsxs.en.po
new file mode 100644
index 00000000..d2a5449c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/commands/tsxs.en.po
@@ -0,0 +1,39 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/commands/tsxs.en.rst:20
+msgid "tsxs"
+msgstr ""
+
+#: ../../reference/commands/tsxs.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/commands/tsxs.en.rst:47
+msgid "Print usage information and exit."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/cache.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/cache.config.en.po
new file mode 100644
index 00000000..d9c6e74b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/cache.config.en.po
@@ -0,0 +1,309 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/cache.config.en.rst:22
+msgid "cache.config"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:24
+msgid ""
+"The :file:`cache.config` file defines how Traffic Server caches web "
+"objects. You can add caching rules to specify the following: - Not to cache "
+"objects from specific IP addresses - How long to pin particular objects in "
+"the cache - How long to consider cached objects as fresh - Whether to "
+"ignore no-cache directives from the server"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:32
+msgid ""
+"After you modify the :file:`cache.config` file, navigate to the Traffic "
+"Server bin directory; then run the :option:`traffic_line -x` command to "
+"apply changes. When you apply the changes to a node in a cluster, Traffic "
+"Server automatically applies the changes to all other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:39
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:41
+msgid ""
+"Each line in the :file:`cache.config` file contains a caching rule. Traffic "
+"Server recognizes three space-delimited tags::"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:46
+msgid ""
+"You can use more than one secondary specifier in a rule. However, you "
+"cannot repeat a secondary specifier. The following list shows the possible "
+"primary destinations with allowed values."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:54
+msgid "``dest_domain``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:53
+msgid ""
+"A requested domain name. Traffic Server matches the domain name of the "
+"destination from the URL in the request."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:60
+msgid "``dest_host``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:59
+msgid ""
+"A requested hostname. Traffic Server matches the hostname of the "
+"destination from the URL in the request."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:66
+msgid "``dest_ip``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:65
+msgid ""
+"A requested IP address. Traffic Server matches the IP address of the "
+"destination in the request."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:71
+msgid "``url_regex``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:71
+msgid "A regular expression (regex) to be found in a URL."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:73
+msgid ""
+"The secondary specifiers are optional in the :file:`cache.config` file. The "
+"following list shows possible secondary specifiers with allowed values."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:79
+msgid "``port``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:79
+msgid "A requested URL port."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:84
+msgid "``scheme``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:84
+msgid "A request URL protocol: http or https."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:89
+msgid "``prefix``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:89
+msgid "A prefix in the path part of a URL."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:94
+msgid "``suffix``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:94
+msgid "A file suffix in the URL."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:99
+msgid "``method``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:99
+msgid "A request URL method: get, put, post, trace."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:104
+msgid "``time``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:104
+msgid "A time range, such as 08:00-14:00."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:109
+msgid "``src_ip``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:109
+msgid "A client IP address."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:111
+msgid "The following list shows possible actions and their allowed values."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:128
+msgid "``action``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:117
+msgid "One of the following values:"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:119
+msgid ""
+"``never-cache`` configures Traffic Server to never cache specified objects."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:121
+msgid ""
+"``ignore-no-cache`` configures Traffic Server to ignore all ``Cache-"
+"Control: no-cache`` headers."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:123
+msgid ""
+"``ignore-client-no-cache`` configures Traffic Server to ignore ``Cache-"
+"Control: no-cache`` headers from client requests."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:125
+msgid ""
+"``ignore-server-no-cache`` configures Traffic Server to ignore ``Cache-"
+"Control: no-cache`` headers from origin server responses."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:127
+msgid ""
+"``cluster-cache-local`` configures the cluster cache to allow for this "
+"content to be stored locally on every cluster node."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:158
+msgid "``pin-in-cache``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:154
+msgid "``d`` for days; for example: 2d"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:155
+msgid "``h`` for hours; for example: 10h"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:156
+msgid "``m`` for minutes; for example: 5m"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:157
+msgid "``s`` for seconds; for example: 20s"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:158
+msgid "mixed units; for example: 1h15m20s"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:164
+msgid "``revalidate``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:172
+msgid "``ttl-in-cache``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:175
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:177
+msgid ""
+"The following example configures Traffic Server to revalidate ``gif`` and "
+"``jpeg`` objects in the domain ``mydomain.com`` every 6 hours, and all "
+"other objects in ``mydomain.com`` every hour. The rules are applied in the "
+"order listed. ::"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:138
+msgid "``cache-responses-to-cookies``"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:133
+msgid ""
+"Change the style of caching with regard to cookies. This effectively "
+"overrides the configuration parameter :ref:`proxy.config.http.cache."
+"cache_responses_to_cookies` and uses the same values with the same "
+"semantics. The override happens only for requests that match."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:143
+msgid ""
+"Preserves objects in cache, preventing them from being overwritten. Does "
+"not affect objects that are determined not to be cacheable. This setting "
+"can have performance issues, and  severely affect the cache. For instance, "
+"if the primary destination matches all objects, once the cache is full, no "
+"new objects could get written as nothing would be evicted.  Similarly, for "
+"each cache-miss, each object would incur extra checks to determine if the "
+"object it would replace could be overwritten."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:151
+msgid ""
+"The value is the amount of time you want to keep the object(s) in the "
+"cache. The following time formats are allowed:"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:163
+msgid ""
+"For objects that are in cache, overrides the the amount of time the "
+"object(s) are to be considered fresh. Use the same time formats as ``pin-in-"
+"cache``."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:169
+msgid ""
+"Forces object(s) to become cached, as if they had a Cache-Control: max-age:"
+"<time> header. Can be overruled by requests with cookies. The value is the "
+"amount of time object(s) are to be kept in the cache, regardless of Cache-"
+"Control response headers. Use the same time formats as pin-in-cache and "
+"revalidate."
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:186
+msgid ""
+"Force a specific regex to be in cache between 7-11pm of the server's time "
+"for 26hours. ::"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:190
+msgid "Prevent objects from being evicted from cache:"
+msgstr ""
+
+#: ../../reference/configuration/cache.config.en.rst:192
+msgid "url_regex=example.com/game/.* pin-in-cache=1h"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/congestion.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/congestion.config.en.po
new file mode 100644
index 00000000..55bf7c97
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/congestion.config.en.po
@@ -0,0 +1,381 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/congestion.config.en.rst:20
+msgid "congestion.config"
+msgstr "congestion.config"
+
+#: ../../reference/configuration/congestion.config.en.rst:24
+msgid ""
+"The :file:`congestion.config` file enables you to configure Traffic Server "
+"to stop forwarding HTTP requests to origin servers when they become "
+"congested, and then send the client a message to retry the congested origin "
+"server later. After you modify the :file:`congestion.config` file, navigate "
+"to the Traffic Server bin directory; then run the :option:`traffic_line -x` "
+"command to apply changes. When you apply the changes to a node in a "
+"cluster, Traffic Server automatically applies the changes to all other "
+"nodes in the cluster. Traffic Server uses the :file:`congestion.config` "
+"file only if you enable the `Congestion Control "
+"<http#UsingCongestionControl>`_ option."
+msgstr ""
+":file:`congestion.config` ファイルはオリジンサーバーが輻輳した際に Traffic "
+"Server が HTTP リクエストを転送しないように設定することを可能にし、後で輻輳"
+"したオリジンサーバーにリトライさせるためにクライアントへメッセージを送信しま"
+"す。:file:`congestion.config` ファイルを変更した後には Traffic Server の "
+"bin ディレクトリに移動し、コマンド :option:`traffic_line -x` を実行して変更"
+"を適用してください。クラスター内の一つのノードに変更を適用すると、Traffic "
+"Server は自動的にクラスター内のすべてのノードに変更を適用します。Traffic "
+"Server は `Congestion Control <http#UsingCongestionControl>`_ オプションを有"
+"効にした場合にのみ :file:`congestion.config` ファイルを使用します。"
+
+#: ../../reference/configuration/congestion.config.en.rst:35
+msgid "You can create rules in the congestion.config file to specify:"
+msgstr "congestion.config ファイルにルールを作り次のことを指定できます。"
+
+#: ../../reference/configuration/congestion.config.en.rst:37
+msgid "Which origin servers Traffic Server tracks for congestion."
+msgstr "Traffic Server がどのオリジンサーバーの輻輳を監視するか"
+
+#: ../../reference/configuration/congestion.config.en.rst:38
+msgid ""
+"The timeouts Traffic Server uses, depending on whether a server is "
+"congested."
+msgstr "Traffic Server がサーバーが輻輳したかの基準にするタイムアウト"
+
+#: ../../reference/configuration/congestion.config.en.rst:40
+msgid ""
+"The page Traffic Server sends to the client when a server becomes congested."
+msgstr ""
+"サーバーが輻輳したときに Traffic Server がクライアントへ送信するページ"
+
+#: ../../reference/configuration/congestion.config.en.rst:42
+msgid ""
+"If Traffic Server tracks the origin servers per IP address or per hostname."
+msgstr ""
+"Traffic Server がオリジンサーバーを監視するのは IP アドレスごとか、ホスト名"
+"ごとか"
+
+#: ../../reference/configuration/congestion.config.en.rst:46
+msgid "Format"
+msgstr "フォーマット"
+
+#: ../../reference/configuration/congestion.config.en.rst:48
+msgid ""
+"Each line in :file:`congestion.config` must follow the format below. "
+"Traffic Server applies the rules in the order listed, starting at the top "
+"of the file. Traffic Server recognizes three space-delimited tags::"
+msgstr ""
+":file:`congestion.config` ファイルの各行は以下のフォーマットに従わなくてはな"
+"りません。Traffic Server はファイルの先頭から並んでいる順番でルールを適用し"
+"ます。Traffic Server はスペースで区切られた 3 つのタグを認識します。::"
+
+#: ../../reference/configuration/congestion.config.en.rst:54
+msgid ""
+"The following list shows possible primary destinations with allowed values."
+msgstr "次の一覧は指定可能な primary destinations とその値です。"
+
+#: ../../reference/configuration/congestion.config.en.rst:58
+msgid "*``dest_domain``* {#dest_domain}"
+msgstr "*``dest_domain``* {#dest_domain}"
+
+#: ../../reference/configuration/congestion.config.en.rst:58
+msgid "A requested domain name."
+msgstr "リクエストされたドメイン名。"
+
+#: ../../reference/configuration/congestion.config.en.rst:61
+msgid "*``dest_host``* {#dest_host}"
+msgstr "*``dest_host``* {#dest_host}"
+
+#: ../../reference/configuration/congestion.config.en.rst:61
+msgid "A requested hostname."
+msgstr "リクエストされたホスト名。"
+
+#: ../../reference/configuration/congestion.config.en.rst:64
+msgid "*``dest_ip``* {#dest_ip}"
+msgstr "*``dest_ip``* {#dest_ip}"
+
+#: ../../reference/configuration/congestion.config.en.rst:64
+msgid "A requested IP address."
+msgstr "リクエストされた IP アドレス。"
+
+#: ../../reference/configuration/congestion.config.en.rst:67
+msgid "*``url_regex``* {#url_regex}"
+msgstr "*``url_regex``* {#url_regex}"
+
+#: ../../reference/configuration/congestion.config.en.rst:67
+msgid "A regular expression (regex) to be found in a URL."
+msgstr "URL 内で見つけられる正規表現 (regex) 。"
+
+#: ../../reference/configuration/congestion.config.en.rst:69
+msgid ""
+"The secondary specifiers are optional in the congestion.config file. The "
+"following list shows possible secondary specifiers with allowed values. You "
+"can use more than one secondary specifier in a rule; however, you cannot "
+"repeat a secondary specifier."
+msgstr ""
+"congestion.config ファイルの secondary specifier は任意です。次の一覧は "
+"secondary specifier に指定可能なものとその値です。一つのルールの中で一つ以上"
+"の secondary specifier を使用することができますが secondary specifier を連続"
+"させることはできません。"
+
+#: ../../reference/configuration/congestion.config.en.rst:75
+msgid "*``port``* {#port}"
+msgstr "*``port``* {#port}"
+
+#: ../../reference/configuration/congestion.config.en.rst:75
+msgid "A requested URL port or range of ports."
+msgstr "リクエストされた URL のポートもしくはポートの範囲。"
+
+#: ../../reference/configuration/congestion.config.en.rst:78
+msgid "*``prefix``* {#prefix}"
+msgstr "*``prefix``* {#prefix}"
+
+#: ../../reference/configuration/congestion.config.en.rst:78
+msgid "A prefix in the path part of a URL."
+msgstr "URL のパス部分のプレフィックス。"
+
+#: ../../reference/configuration/congestion.config.en.rst:80
+msgid "The following list shows the possible tags and their allowed values."
+msgstr "次の一覧は指定可能なタグとその値です。"
+
+#: ../../reference/configuration/congestion.config.en.rst:86
+msgid "*``max_connection_failures``* {#max_connection_failures}"
+msgstr "*``max_connection_failures``* {#max_connection_failures}"
+
+#: ../../reference/configuration/congestion.config.en.rst:83
+msgid ""
+"Default: ``5`` The maximum number of connection failures allowed within the "
+"fail window described below before Traffic Server marks the origin server "
+"as congested."
+msgstr ""
+"デフォルト: ``5`` Traffic Server がオリジンサーバーを輻輳状態とマークするま"
+"でに下記で説明される fail window 内で許される最大接続失敗数。"
+
+#: ../../reference/configuration/congestion.config.en.rst:92
+msgid "*``fail_window``* {#fail_window}"
+msgstr "*``fail_window``* {#fail_window}"
+
+#: ../../reference/configuration/congestion.config.en.rst:89
+msgid ""
+"Default: ``120`` seconds. The time period during which the maximum number "
+"of connection failures can occur before Traffic Server marks the origin "
+"server as congested."
+msgstr ""
+"デフォルト: ``120`` 秒。Traffic Server がオリジンサーバーを輻輳状態とマーク"
+"するまでに最大数の接続失敗を起こせる期間。"
+
+#: ../../reference/configuration/congestion.config.en.rst:97
+msgid "*``proxy_retry_interval``* {#proxy_retry_interval}"
+msgstr "*``proxy_retry_interval``* {#proxy_retry_interval}"
+
+#: ../../reference/configuration/congestion.config.en.rst:95
+msgid ""
+"Default: ``10`` seconds. The number of seconds that Traffic Server waits "
+"before contacting a congested origin server again."
+msgstr ""
+"デフォルト: ``10`` 秒。Traffic Server が輻輳したオリジンサーバーに再び接続す"
+"るまでに待つ秒数。"
+
+#: ../../reference/configuration/congestion.config.en.rst:102
+msgid "*``client_wait_interval``* {#client_wait_interval}"
+msgstr "*``client_wait_interval``* {#client_wait_interval}"
+
+#: ../../reference/configuration/congestion.config.en.rst:100
+msgid ""
+"Default: ``300`` seconds. The number of seconds that the client is advised "
+"to wait before retrying the congested origin server."
+msgstr ""
+"デフォルト: ``300`` 秒。輻輳したオリジンサーバーにリトライするまでにクライア"
+"ントに待たせる秒数。"
+
+#: ../../reference/configuration/congestion.config.en.rst:107
+msgid "*``wait_interval_alpha``* {#wait_interval_alpha}"
+msgstr "*``wait_interval_alpha``* {#wait_interval_alpha}"
+
+#: ../../reference/configuration/congestion.config.en.rst:105
+msgid ""
+"Default: ``30`` seconds The upper limit for a random number that is added "
+"to the wait interval."
+msgstr "デフォルト: ``30`` 秒。wait interval にランダムに加算される数の上限。"
+
+#: ../../reference/configuration/congestion.config.en.rst:113
+msgid "*``live_os_conn_timeout``* {#live_os_conn_timeout}"
+msgstr "*``live_os_conn_timeout``* {#live_os_conn_timeout}"
+
+#: ../../reference/configuration/congestion.config.en.rst:110
+msgid ""
+"Default: ``60`` seconds. The connection timeout to the live (uncongested) "
+"origin server. If a client stops a request before the timeout occurs, then "
+"Traffic Server does not record a connection failure."
+msgstr ""
+"デフォルト: ``60`` 秒。生きている (輻輳していない) オリジンサーバーに対して"
+"の接続のタイムアウト。クライアントがタイムアウトが発生する前にリクエストを停"
+"止した場合、Traffic Server は接続失敗を記録しません。"
+
+#: ../../reference/configuration/congestion.config.en.rst:118
+msgid "*``live_os_conn_retries``* {#live_os_conn_retries}"
+msgstr "*``live_os_conn_retries``* {#live_os_conn_retries}"
+
+#: ../../reference/configuration/congestion.config.en.rst:116
+msgid ""
+"Default: ``2`` The maximum number of retries allowed to the live "
+"(uncongested) origin server."
+msgstr ""
+"デフォルト: ``2`` 生きている (輻輳していない) オリジンサーバーに対して許され"
+"る最大リトライ数。"
+
+#: ../../reference/configuration/congestion.config.en.rst:122
+msgid "*``dead_os_conn_timeout``* {#dead_os_conn_timeout}"
+msgstr "*``dead_os_conn_timeout``* {#dead_os_conn_timeout}"
+
+#: ../../reference/configuration/congestion.config.en.rst:127
+msgid "*``dead_os_conn_retries``* {#dead_os_conn_retries}"
+msgstr "*``dead_os_conn_retries``* {#dead_os_conn_retries}"
+
+#: ../../reference/configuration/congestion.config.en.rst:125
+msgid ""
+"Default: ``1`` The maximum number of retries allowed to the congested "
+"origin server."
+msgstr ""
+"デフォルト: ``1`` 輻輳しているオリジンサーバーに対して許される最大リトライ"
+"数。"
+
+#: ../../reference/configuration/congestion.config.en.rst:132
+msgid "*``max_connection``* {#max_connection}"
+msgstr "*``max_connection``* {#max_connection}"
+
+#: ../../reference/configuration/congestion.config.en.rst:130
+msgid ""
+"Default: ``-1`` The maximum number of connections allowed from Traffic "
+"Server to the origin server."
+msgstr ""
+"デフォルト: ``-1`` Traffic Server からオリジンサーバーに対して許される最大接"
+"続数"
+
+#: ../../reference/configuration/congestion.config.en.rst:137
+msgid "*``error_page``* {#error_page}"
+msgstr "*``error_page``* {#error_page}"
+
+#: ../../reference/configuration/congestion.config.en.rst:135
+msgid ""
+"Default: ``\"congestion#retryAfter\"`` The error page sent to the client "
+"when a server is congested. You must enclose the value in quotes;"
+msgstr ""
+"デフォルト: ``\"congestion#retryAfter\"`` サーバーが輻輳した際にクライアント"
+"に送信されるエラーページ。値はクォーテーションで囲まなければなりません。"
+
+#: ../../reference/configuration/congestion.config.en.rst:150
+msgid "*:file:`congestion.config`* {#congestion_scheme}"
+msgstr "*:file:`congestion.config`* {#congestion_scheme}"
+
+#: ../../reference/configuration/congestion.config.en.rst:140
+msgid ""
+"Default: ``\"per_ip\"`` Specifies if Traffic Server applies the rule on a "
+"per-host (``\"per_host\"``) or per-IP basis (``\"per_ip\"``). You must "
+"enclose the value in quotes."
+msgstr ""
+"デフォルト: ``\"per_ip\"`` Traffic Server がルールを per-host (``\"per_host"
+"\"``) や per-IP basis (``\"per_ip\"``) で適用する場合に指定します。値は"
+"クォーテーションで囲まなければなりません。"
+
+#: ../../reference/configuration/congestion.config.en.rst:145
+msgid ""
+"For example: if the server ``www.host1.com`` has two IP addresses and you "
+"use the tag value ``\"per_ip\"``, then each IP address has its own number "
+"of connection failures and is marked as congested independently. If you use "
+"the tag value ``\"per_host\"`` and the server ``www.host1.com`` is marked "
+"as congested, then both IP addresses are marked as congested."
+msgstr ""
+"例: サーバー ``www.host1.com`` が二つの IP アドレスを持ち、タグ ``\"per_ip"
+"\"`` を使用する場合、各 IP アドレスはそれぞれに接続失敗数を持ち、独立して輻"
+"輳状態とマークされます。タグ ``\"per_host\"`` を使用し、サーバー ``www."
+"host1.com`` が輻輳状態とマークされると、両方の IP アドレスが輻輳状態とマーク"
+"されます。"
+
+#: ../../reference/configuration/congestion.config.en.rst:153
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/configuration/congestion.config.en.rst:155
+msgid ""
+"The following :file:`congestion.config` rule configures Traffic Server to "
+"stop forwarding requests to the server ``www.host.com`` on port 80 (HTTP "
+"traffic) if the server is congested, according to the timeouts specified. "
+"Traffic Server uses the default tag values because no tag has been "
+"specified."
+msgstr ""
+"次の :file:`congestion.config` のルールは、指定されたタイムアウトにより "
+"``www.host.com`` ポート 80 (HTTP 通信) のサーバーが輻輳したときに、Traffic "
+"Server がリクエストの転送を停止するように設定します。タグが一つも指定されて"
+"いないので Traffic Server はタグのデフォルト値を使用します。"
+
+#: ../../reference/configuration/congestion.config.en.rst:165
+msgid ""
+"You can use one or more tags in a rule, but each tag must have one value "
+"only. If you specify no tags in the rule, then Traffic Server uses the "
+"default values."
+msgstr ""
+"一つのルール内に複数のタグを使用できますが、それぞれのタグは一つの値のみを持"
+"たなければなりません。ルールにタグを指定しないと Traffic Server はデフォルト"
+"値を使用します。"
+
+#: ../../reference/configuration/congestion.config.en.rst:169
+msgid ""
+"You can override any of the default tag values by adding configuration "
+"variables at the end of :file:`records.config` as follows:"
+msgstr ""
+":file:`records.config` の最後に次のように設定変数を追加することでタグのデ"
+"フォルト値を上書きできます。"
+
+#: ../../reference/configuration/congestion.config.en.rst:176
+msgid ""
+"where tag is one of the tags described in the list under :file:`congestion."
+"config` and value is the value you want to use."
+msgstr ""
+"tag の部分は :file:`congestion.config` にある一覧で説明されたタグの中の一つ"
+"で、value は使用したい値です。"
+
+#: ../../reference/configuration/congestion.config.en.rst:180
+msgid "For example::"
+msgstr "例:: "
+
+#: ../../reference/configuration/congestion.config.en.rst:186
+msgid ""
+"Rules in the :file:`congestion.config` file override the following "
+"variables in the :file:`records.config` file:"
+msgstr ""
+":file:`congestion.config` ファイルのルールは :file:`records.config` ファイル"
+"の次の設定を上書きします。"
+
+#: ../../reference/configuration/congestion.config.en.rst:121
+msgid ""
+"Default: ``15`` seconds. The connection timeout to the congested origin "
+"server."
+msgstr ""
+"デフォルト: ``15`` 秒。輻輳しているオリジンサーバーに対する接続タイムアウ"
+"ト。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/hosting.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/hosting.config.en.po
new file mode 100644
index 00000000..6f23e7e5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/hosting.config.en.po
@@ -0,0 +1,125 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/hosting.config.en.rst:20
+msgid "hosting.config"
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:24
+msgid ""
+"The :file:`hosting.config` file enables you to assign cache partitions to "
+"specific origin servers and/or domains so that you can manage cache space "
+"efficiently and restrict disk usage. For step-by-step instructions on "
+"partitioning the cache according to origin servers and/or domains, refer to "
+"`Partitioning the Cache <../configuring-cache#PartitoningCache>`_. Before "
+"you can assign cache partitions to specific origin servers and/or domains, "
+"you must first partition your cache according to size and protocol in the :"
+"file:`volume.config` file. For step-by-step instructions about partitioning "
+"your cache, refer to `Partitioning the Cache <../configuring-"
+"cache#PartitioningCache>`_."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:35
+msgid ""
+"After you modify hosting.config, navigate to the Traffic Server bin "
+"directory and run :option:`traffic_line -x` to apply your changes."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:38
+msgid ""
+"When you apply the changes to a node in a cluster, Traffic Server "
+"automatically applies the changes to all other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:43
+msgid ""
+"The :file:`volume.config` configuration must be the same on all nodes in a "
+"cluster."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:46
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:48
+msgid ""
+"Each line in the :file:`hosting.config` file must have one of the following "
+"formats::"
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:54
+msgid ""
+"where ``HOST`` is the fully-qualified hostname of the origin server whose "
+"content you want to store on a particular partition (for example, ``www."
+"myhost.com``); ``DOMAIN`` is the domain whose content you want to store on "
+"a particular partition(for example, ``mydomain.com``); and ``NUMBERS`` is a "
+"comma-separated list of the partitions on which you want to store the "
+"content that belongs to the origin server or domain listed. The partition "
+"numbers must be valid numbers listed in the file:`volume.config`."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:63
+msgid ""
+"**Note:** To allocate more than one partition to an origin server or "
+"domain, you must enter the partitions in a comma-separated list on one "
+"line, as shown in the example below. The :file:`hosting.config`  file "
+"cannot contain multiple entries for the same origin server or domain."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:70
+msgid "Generic Partition"
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:72
+msgid ""
+"When configuring the :file:`hosting.config` file, you must assign a generic "
+"partition to use for content that does not belong to any of the origin "
+"servers or domains listed. If all partitions for a particular origin server "
+"become corrupt, Traffic Server will also use the generic partition to store "
+"content for that origin server."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:78
+msgid "The generic partition must have the following format::"
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:82
+msgid "where ``NUMBERS`` is a comma-separated list of generic partitions."
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:86
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/hosting.config.en.rst:88
+msgid ""
+"The following example configures Traffic Server to store content from the "
+"domain ``mydomain.com`` in partition 1 and content from ``www.myhost.com`` "
+"in partition 2. Traffic Server stores content from all other origin servers "
+"in partitions 3 and 4."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/icp.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/icp.config.en.po
new file mode 100644
index 00000000..738b2a81
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/icp.config.en.po
@@ -0,0 +1,178 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/icp.config.en.rst:20
+msgid "icp.config"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:26
+msgid "The Traffic Server ICP  feature is not functional in this release."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:28
+msgid ""
+"The :file:`icp.config` file defines ICP peers (parent and sibling caches)."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:32
+msgid ""
+"After you modify the icp.config file, navigate to the Traffic Server bin "
+"directory and run the :option:`traffic_line -x` command to apply the "
+"changes. When you apply the changes to a node in a cluster, Traffic Server "
+"automatically applies the changes to all other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:39
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:41
+msgid ""
+"Each line in the icp.config file contains the name and configuration "
+"information for a single ICP peer in the following format::"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:46
+msgid "Each field is described in the following list."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:52
+msgid "*``host``* {#host}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:49
+msgid "The hostname of the ICP peer."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:51
+msgid ""
+"This field is optional; if you do not specify the hostname of the ICP peer, "
+"you must specify the IP address."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:58
+msgid "*``host_IP``* {#host_IP}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:55
+msgid "The IP address of the ICP peer."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:57
+msgid ""
+"This field is optional; if you do not specify the IP address of the ICP "
+"peer, you must specify the hostname."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:64
+msgid "*``ctype``* {#ctype}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:61
+msgid "Use the following options:"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:63
+msgid "1 to indicate an ICP parent cache"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:64
+msgid "2 to indicate an ICP sibling cache"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:68
+msgid "*``proxy_port``* {#proxy_port}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:67
+msgid ""
+"The port number of the TCP port used by the ICP peer for proxy "
+"communication."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:72
+msgid "*``icp_port``* {#icp_port}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:71
+msgid ""
+"The port number of the UDP port used by the ICP peer for ICP communication."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:78
+msgid "*``MC_on``* {#mc_on}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:75
+msgid "Enable or disable MultiCast:"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:77
+msgid "0 if multicast is disabled"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:78
+msgid "1 if multicast is enabled"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:81
+msgid "*``MC_ip``* {#mc_ip}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:81
+msgid "The MultiCast IP address."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:90
+msgid "*``MC_ttl``* {#mc_ttl}"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:84
+msgid "The multicast time to live. Use the following options:"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:86
+msgid ""
+"1 if IP multicast datagrams will not be forwarded beyond a single subnetwork"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:88
+msgid ""
+"2 to allow delivery of IP multicast datagrams to more than one subnet (if "
+"there are one or more multicast routers attached to the first hop subnet)."
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:93
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/icp.config.en.rst:95
+msgid ""
+"The following example configuration is for three nodes: the local host, one "
+"parent, and one sibling."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/index.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/index.en.po
new file mode 100644
index 00000000..46e404e4
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/index.en.po
@@ -0,0 +1,31 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/index.en.rst:5
+msgid "Configuration File Reference"
+msgstr "設定ファイルリファレンス"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/ip_allow.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/ip_allow.config.en.po
new file mode 100644
index 00000000..51cc0578
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/ip_allow.config.en.po
@@ -0,0 +1,94 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/ip_allow.config.en.rst:20
+msgid "ip_allow.config"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:24
+msgid ""
+"The :file:`ip_allow.config` file controls client access to the Traffic "
+"Server proxy cache. You can specify ranges of IP addresses that are allowed "
+"to use the Traffic Server as a web proxy cache. After you modify the :file:"
+"`ip_allow.config` file, navigate to the Traffic Server bin directory and "
+"run the :option:`traffic_line -x` command to apply changes. When you apply "
+"the changes to a node in a cluster, Traffic Server automatically applies "
+"the changes to all other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:33
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:35
+msgid ""
+"Each line in the :file:`ip_allow.config` file must have the following "
+"format::"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:40
+msgid ""
+"where src_ip is the IP address or range of IP addresses of the client(s). "
+"The action ``ip_allow`` enables the specified client(s) to access the "
+"Traffic Server proxy cache, and ``ip_deny`` denies the specified client(s) "
+"to access the Traffic Server proxy cache. Multiple method keywords can be "
+"specified (method=GET method=HEAD), or multiple methods can be separated by "
+"an '\\|' (method=GET\\|HEAD). The method keyword is optional and it is "
+"defaulted to ALL. Available methods: ALL, GET, CONNECT, DELETE, HEAD, "
+"ICP_QUERY, OPTIONS, POST, PURGE, PUT, TRACE, PUSH"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:50
+msgid ""
+"By default, the :file:`ip_allow.config` file contains the following lines, "
+"which allows all methods to localhost to access the Traffic Server proxy "
+"cache and denies PUSH, PURGE and DELETE to all IPs (note this allows all "
+"other methods to all IPs)::"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:61
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:63
+msgid ""
+"The following example enables all clients to access the Traffic Server "
+"proxy cache::"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:68
+msgid ""
+"The following example allows all clients on a specific subnet to access the "
+"Traffic Server proxy cache::"
+msgstr ""
+
+#: ../../reference/configuration/ip_allow.config.en.rst:73
+msgid ""
+"The following example denies all clients on a specific subnet to access the "
+"Traffic Server proxy cache::"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/log_hosts.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/log_hosts.config.en.po
new file mode 100644
index 00000000..687ba092
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/log_hosts.config.en.po
@@ -0,0 +1,83 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/log_hosts.config.en.rst:20
+msgid "log_hosts.config"
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:24
+msgid ""
+"To record HTTP transactions for different origin servers in separate log "
+"files, you must list each origin server hostname in the :file:`log_hosts."
+"config` file. In addition, you must enable the `HTTP Host Log Splitting <../"
+"working-log-files#HTTPHostLogSplitting>`_ option. You should use the same :"
+"file:`log_hosts.config` file on every Traffic Server node in your cluster. "
+"After you modify the :file:`log_hosts.config` file, run the :option:"
+"`traffic_line -x` command to apply the changes. When you apply the changes "
+"to a node in a cluster, Traffic Server automatically applies the changes to "
+"all other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:35
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:37
+msgid ""
+"Each line in the :file:`log_hosts.config` file has the following format::"
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:41
+msgid "where ``hostname`` is the hostname of the origin server."
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:45
+msgid ""
+"You can specify keywords in the :file:`log_hosts.config` file to record all "
+"transactions from origin servers with the specified keyword in their names "
+"in a separate log file. See the example below."
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:50
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:52
+msgid ""
+"The following example configures Traffic Server to create separate log "
+"files containing all HTTP transactions for the origin servers "
+"``webserver1``, ``webserver2``, and ``webserver3``::"
+msgstr ""
+
+#: ../../reference/configuration/log_hosts.config.en.rst:60
+msgid ""
+"The following example records all HTTP transactions from origin servers "
+"that contain ``sports`` in their names. For example: ``sports.yahoo.com`` "
+"and ``www.foxsports.com`` in a log file called ``squid-sport.log`` (the "
+"Squid format is enabled)::"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/logs_xml.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/logs_xml.config.en.po
new file mode 100644
index 00000000..2dc12f84
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/logs_xml.config.en.po
@@ -0,0 +1,527 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/logs_xml.config.en.rst:20
+msgid "logs_xml.config"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:24
+msgid ""
+"The :file:`logs_xml.config` file defines the custom log file formats, "
+"filters, and processing options. The format of this file is modeled after "
+"XML, the Extensible Markup Language."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:29
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:31
+msgid "The :file:`logs_xml.config` file contains the specifications below:"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:33
+msgid ""
+"``LogFormat`` specifies the fields to be gathered from each protocol event "
+"access."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:35
+msgid ""
+"``LogFilter`` specifies the filters that are used to include or exclude "
+"certain entries being logged based on the value of a field within that "
+"entry."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:38
+msgid ""
+"``LogObject`` specifies an object that contains a particular format, a "
+"local filename, filters, and collation servers."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:41
+msgid ""
+"The :file:`logs_xml.config` file ignores extra white space, blank lines, "
+"and all comments."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:47
+msgid "LogFormat"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:49
+msgid "The following list shows ``LogFormat`` specifications."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:57
+msgid "``<Name = \"valid_format_name\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:54
+msgid ""
+"Required Valid format names include any name except ``squid``, ``common``, "
+"``extended``, or ``extended2``, which are pre-defined formats. There is no "
+"default for this tag."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:78
+msgid "``<Format = \"valid_format_specification\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:62
+msgid ""
+"Required A valid format specification is a printf-style string describing "
+"each log entry when formatted for ASCII output. Use ``%<`` ``field`` ``>`` "
+"as a placeholder for valid field names. For more information, refer to :ref:"
+"`custom-logging-fields`."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:68
+msgid "The specified field can be one of the following types:"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:70
+msgid ""
+"Simple. For example: ``%<cqu>`` A field within a container, such as an HTTP "
+"header or a statistic. Fields of this type have the syntax: ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:76
+msgid ""
+"Aggregates, such as ``COUNT``, ``SUM``, ``AVG``, ``FIRST``, ``LAST``. "
+"Fields of this type have the syntax: ``%<operator (`` ``field`` ``)>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:82
+msgid ""
+"You cannot create a format specification that contains both aggregate "
+"operators and regular fields."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:96
+msgid "``<Interval = \"aggregate_interval_secs\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:85
+msgid ""
+"Optional Use this tag when the format contains aggregate operators. The "
+"value \"``aggregate_interval_secs``\\\" represents the number of seconds "
+"between individual aggregate values being produced."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:90
+msgid "The valid set of aggregate operators are:"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:92
+msgid "COUNT"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:93
+msgid "SUM"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:94
+msgid "AVG"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:95
+msgid "FIRST"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:96
+msgid "LAST"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:101
+msgid "LogFilters"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:103
+msgid "The following list shows the ``LogFilter`` specifications."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:107
+msgid "``<Name = \"valid_filter_name\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:106
+msgid "Required All filters must be uniquely named."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:131
+msgid ""
+"``<Condition = \"valid_log_field valid_operator valid_comparison_value\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:110
+msgid "Required This field contains the following elements:"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:113
+msgid ""
+"``valid_log_field`` - the field that will be compared against the given "
+"value. For more information, refer to :ref:`logging-format-cross-reference`."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:116
+msgid ""
+"``valid_operator_field`` - any one of the following: ``MATCH``, "
+"``CASE_INSENSITIVE_MATCH``, ``CONTAIN``, ``CASE_INSENSITIVE_CONTAIN``."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:120
+msgid ""
+"``MATCH`` is true if the field and value are identical (case-sensitive)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:122
+msgid ""
+"``CASE_INSENSITIVE_MATCH`` is similar to ``MATCH``, except that it is case-"
+"insensitive."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:124
+msgid ""
+"``CONTAIN`` is true if the field contains the value (the value is a "
+"substring of the field)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:126
+msgid ""
+"``CASE_INSENSITIVE_CONTAIN`` is a case-insensitive version of ``CONTAIN``."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:129
+msgid ""
+"``valid_comparison_value`` - any string or integer matching the field type. "
+"For integer values, all of the operators are equivalent and mean that the "
+"field must be equal to the specified value."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:135
+msgid ""
+"There are no negative comparison operators. If you want to specify a "
+"negative condition, then use the ``Action`` field to ``REJECT`` the record."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:142
+msgid "``<Action = \"valid_action_field\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:140
+msgid ""
+"Required: ``ACCEPT`` or ``REJECT`` . This instructs Traffic Server to "
+"either accept or reject records that satisfy the filter condition."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:147
+msgid "LogObject"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:149
+msgid "The following list shows the ``LogObject`` specifications."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:156
+msgid "``<Format = \"valid_format_name\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:152
+msgid ""
+"Required Valid format names include the predefined logging formats: "
+"``squid``, ``common``, ``extended``, and ``extended2``, as well as any "
+"previously-defined custom log formats. There is no default for this tag."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:171
+msgid "``<Filename = \"file_name\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:159
+msgid ""
+"Required The filename to which the given log file is written on the local "
+"file system or on a remote collation server. No local log file will be "
+"created if you fail to specify this tag. All filenames are relative to the "
+"default logging directory."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:170
+msgid ""
+"If you do not want an extension to be added, then end the filename with a "
+"single (.) dot (for example: ``squid.`` )."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:199
+msgid "``<Mode = \"valid_logging_mode\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:176
+msgid ""
+"Optional Valid logging modes include ``ascii`` , ``binary`` , and "
+"``ascii_pipe`` . The default is ``ascii`` ."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:180
+msgid ""
+"Use ``ascii`` to create event log files in human-readable form (plain "
+"ASCII)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:182
+msgid ""
+"Use ``binary`` to create event log files in binary format. Binary log files "
+"generate lower system overhead and occupy less space on the disk (depending "
+"on the information being logged). You must use the :program:"
+"`traffic_logcat` utility to translate binary log files to ASCII format "
+"before you can read them."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:187
+msgid ""
+"Use ``ascii_pipe`` to write log entries to a UNIX named pipe (a buffer in "
+"memory). Other processes can then read the data using standard I/O "
+"functions. The advantage of using this option is that Traffic Server does "
+"not have to write to disk, which frees disk space and bandwidth for other "
+"tasks. In addition, writing to a pipe does not stop when logging space is "
+"exhausted because the pipe does not use disk space."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:195
+msgid ""
+"If you are using a collation server, then the log is written to a pipe on "
+"the collation server. A local pipe is created even before a transaction is "
+"processed, so you can see the pipe right after Traffic Server starts. Pipes "
+"on a collation server, however, *are* created when Traffic Server starts."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:205
+msgid "``<Filters = \"list_of_valid_filter_names\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:202
+msgid ""
+"Optional A comma-separated list of names of any previously-defined log "
+"filters. If more than one filter is specified, then all filters must accept "
+"a record for the record to be logged."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:211
+msgid "``<Protocols = \"list_of_valid_protocols\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:208
+msgid ""
+"Optional A comma-separated list of the protocols this object should log. "
+"Valid protocol names for this release are ``HTTP`` (FTP is deprecated)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:216
+msgid "``<ServerHosts = \"list_of_valid_servers\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:214
+msgid ""
+"Optional A comma-separated list of valid hostnames.This tag indicates that "
+"only entries from the named servers will be included in the file."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:237
+msgid "``<Header = \"header\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:234
+msgid ""
+"Optional The header text you want the log files to contain. The header text "
+"appears at the beginning of the log file, just before the first record."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:257
+msgid "``<RollingEnabled = \"truth value\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:240
+msgid ""
+"Optional Enables or disables log file rolling for the ``LogObject``. This "
+"setting overrides the value for the :ts:cv:`proxy.config.log."
+"rolling_enabled` variable in the :file:`records.config` file. Set *truth "
+"value* to one of the following values:"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:247
+msgid "``0`` to disable rolling for this particular ``LogObject``."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:248
+msgid ""
+"``1`` to roll log files at specific intervals during the day (you specify "
+"time intervals with the ``RollingIntervalSec`` and ``RollingOffsetHr`` "
+"fields)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:251
+msgid ""
+"``2`` to roll log files when they reach a certain size (you specify the "
+"size with the ``RollingSizeMb`` field)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:253
+msgid ""
+"``3`` to roll log files at specific intervals during the day or when they "
+"reach a certain size (whichever occurs first)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:255
+msgid ""
+"``4`` to roll log files at specific intervals during the day when log files "
+"reach a specific size (at a specified time if the file is of the specified "
+"size)."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:269
+msgid "``<RollingIntervalSec = \"seconds\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:262
+msgid ""
+"Optional The seconds between log file rolling for the ``LogObject``; "
+"enables you to specify different rolling intervals for different "
+"``LogObjects``."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:267
+msgid ""
+"This setting overrides the value for :ts:cv:`proxy.config.log."
+"rolling_interval_sec` in the :file:`records.config` file."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:279
+msgid "``<RollingOffsetHr = \"hour\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:272
+msgid ""
+"Optional Specifies an hour (from 0 to 23) at which rolling is guaranteed to "
+"align. Rolling might start before then, but a rolled file will be produced "
+"only at that time. The impact of this setting is only noticeable if the "
+"rolling interval is larger than one hour. This setting overrides the "
+"configuration setting for :ts:cv:`proxy.config.log.rolling_offset_hr` in "
+"the :file:`records.config` file."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:283
+msgid "``<RollingSizeMb = \"size_in_MB\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:282
+msgid "Optional The size at which log files are rolled."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:286
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:288
+msgid ""
+"The following is an example of a ``LogFormat`` specification that collects "
+"information using three common fields: ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:296
+msgid ""
+"The following is an example of a ``LogFormat`` specification that uses "
+"aggregate operators: ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:305
+msgid ""
+"The following is an example of a ``LogFilter`` that will cause only "
+"``REFRESH_HIT`` entries to be logged: ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:316
+msgid ""
+"When specifying the field in the filter condition, you can omit the ``"
+"%<>``. This means that the filter below is equivalent to the example "
+"directly above: ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:326
+msgid ""
+"The following is an example of a ``LogObject`` specification that creates a "
+"local log file for the minimal format defined earlier. The log filename "
+"will be ``minimal.log`` because this is an ASCII log file (the default).::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:336
+msgid ""
+"The following is an example of a ``LogObject`` specification that includes "
+"only HTTP requests served by hosts in the domain ``company.com`` or by the "
+"specific server ``server.somewhere.com``. Log entries are sent to port 4000 "
+"of the collation host ``logs.company.com`` and to port 5000 of the "
+"collation host ``209.131.52.129.`` ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:353
+msgid "WELF"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:355
+msgid ""
+"Traffic Server supports WELF (WebTrends Enhanced Log Format) so you can "
+"analyze Traffic Server log files with WebTrends reporting tools. A "
+"predefined ``<LogFormat>`` that is compatible with WELF is provided in the :"
+"file:`logs_xml.config` file (shown below). To create a WELF format log "
+"file, create a ``<LogObject>`` that uses this predefined format. ::"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:231
+msgid ""
+"``<CollationHosts = \"list_of_valid_hostnames:port|failover hosts\"/>``"
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:221
+msgid ""
+"Optional A comma-separated list of collation servers (with pipe delimited "
+"failover servers) to which all log entries (for this object) are forwarded. "
+"Collation servers can be specified by name or IP address. Specify the "
+"collation port with a colon after the name. For example, in ``host1:5000|"
+"failhostA:5000|failhostB:6000, host2:6000`` logs would be sent to host1 and "
+"host2, with failhostA and failhostB acting as failover hosts for host1. "
+"When host1 disconnects, logs would be sent to failhostA. If failhostA "
+"disconnects, log entries would be sent to failhostB until host1 or "
+"failhostA comes back. Logs would also be sent to host2."
+msgstr ""
+
+#: ../../reference/configuration/logs_xml.config.en.rst:165
+msgid ""
+"If the name does not contain an extension (for example, ``squid``), then "
+"the extension ``.log`` is automatically appended to it for ASCII logs and "
+"``.blog`` for binary logs (refer to :ref:`Mode = \"valid_logging_mode\" "
+"<LogObject-Mode>`)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/parent.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/parent.config.en.po
new file mode 100644
index 00000000..00e76fec
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/parent.config.en.po
@@ -0,0 +1,274 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/parent.config.en.rst:20
+msgid "parent.config"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:24
+msgid ""
+"The :file:`parent.config` file identifies the parent proxies used in an "
+"cache hierarchy. Use this file to perform the following configuration:"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:27
+msgid ""
+"Set up parent cache hierarchies, with multiple parents and parent failover"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:29
+msgid "Configure selected URL requests to bypass parent proxies"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:31
+msgid ""
+"Traffic Server uses the :file:`parent.config` file only when the parent "
+"caching option is enabled (refer to :ref:`configuring-traffic-server-to-use-"
+"a-parent-cache`)."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:34
+msgid ""
+"After you modify the :file:`parent.config` file, run the :option:"
+"`traffic_line -x` command to apply your changes. When you apply the changes "
+"to one node in a cluster, Traffic Server automatically applies the changes "
+"to all other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:40
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:42
+msgid ""
+"Each line in the :file:`parent.config` file must contain a parent caching "
+"rule. Traffic Server recognizes three space-delimited tags: ::"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:47
+msgid ""
+"The following list shows the possible primary destinations and their "
+"allowed values."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:53
+msgid "``dest_domain``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:53
+msgid "A requested domain name."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:58
+msgid "``dest_host``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:58
+msgid "A requested hostname."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:63
+msgid "``dest_ip``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:63
+msgid ""
+"A requested IP address or range of IP addresses separated by a dash (-)."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:68
+msgid "``url_regex``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:68
+msgid "A regular expression (regex) to be found in a URL"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:70
+msgid ""
+"The secondary specifiers are optional in the :file:`parent.config` file. "
+"The following list shows the possible secondary specifiers and their "
+"allowed values."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:77
+msgid "``port``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:77
+msgid "A requested URL port."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:82
+msgid "``scheme``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:82
+msgid "A request URL protocol: ``http`` or ``https``."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:87
+msgid "``prefix``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:87
+msgid "A prefix in the path part of a URL."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:92
+msgid "``suffix``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:92
+msgid "A file suffix in the URL."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:102
+msgid "``method``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:97
+msgid "A request URL method. It can be one of the following:"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:99
+msgid "get"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:100
+msgid "post"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:101
+msgid "put"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:102
+msgid "trace"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:108
+msgid "``time``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:107
+msgid ""
+"A time range, such as 08:00-14:00, during which the parent cache is used to "
+"serve requests."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:113
+msgid "``src_ip``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:113
+msgid "A client IP address."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:115
+msgid ""
+"The following list shows the possible actions and their allowed values."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:123
+msgid "``parent``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:120
+msgid ""
+"An ordered list of parent servers. If the request cannot be handled by the "
+"last parent server in the list, then it will be routed to the origin "
+"server. You can specify either a hostname or an IP address, but; you must "
+"specify the port number."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:135
+msgid "``round_robin``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:128
+#: ../../reference/configuration/parent.config.en.rst:140
+msgid "One of the following values:"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:130
+msgid ""
+"``true`` - Traffic Server goes through the parent cache list in a round "
+"robin-based on client IP address."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:132
+msgid ""
+"``strict`` - Traffic Server machines serve requests strictly in turn. For "
+"example: machine ``proxy1`` serves the first request, ``proxy2`` serves the "
+"second request, and so on."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:135
+msgid "``false`` - Round robin selection does not occur."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:144
+msgid "``go_direct``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:142
+msgid ""
+"``true`` - requests bypass parent hierarchies and go directly to the origin "
+"server."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:144
+msgid "``false`` - requests do not bypass parent hierarchies."
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:147
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:149
+msgid ""
+"The following rule configures a parent cache hierarchy consisting of "
+"Traffic Server (which is the child) and two parents, ``p1.x.com`` and ``p2."
+"x.com``. Traffic Server forwards the requests it cannot serve to the parent "
+"servers ``p1.x.com`` and ``p2.x.com`` in a round-robin fashion::"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:158
+msgid ""
+"The following rule configures Traffic Server to route all requests "
+"containing the regular expression ``politics`` and the path ``/viewpoint`` "
+"directly to the origin server (bypassing any parent hierarchies): "
+"``url_regex=politics prefix=/viewpoint go_direct=true``"
+msgstr ""
+
+#: ../../reference/configuration/parent.config.en.rst:163
+msgid ""
+"Every line in the :file:`parent.config` file must contain either a "
+"``parent=`` or ``go_direct=`` directive."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/plugin.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/plugin.config.en.po
new file mode 100644
index 00000000..4edbc259
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/plugin.config.en.po
@@ -0,0 +1,88 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/plugin.config.en.rst:20
+msgid "plugin.config"
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:25
+msgid "Description"
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:27
+msgid ""
+"The :file:`plugin.config` file controls run-time loadable plugins available "
+"to the Traffic Server, as well as their configuration. Plugins listed in "
+"this file are referred to as `global plugins` because they are always "
+"loaded and have global effect.  This is in contrast to plugins specified "
+"in :file:`remap.config`, whose effects are limited to the specific mapping "
+"rules they are applied to."
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:34
+msgid ""
+"Each configuration line consists of a path to an ``.so`` file. This path "
+"can either be absolute, or relative to the plugin directory (usually ``/usr/"
+"local/libexec/trafficserver``).  Failure to load a plugin is fatal, and "
+"will cause Traffic Server to abort. In general, it is not possible to know "
+"whether it is safe for the service to run without a particular plugin, "
+"since plugins can have arbitrary effects on caching and authorization "
+"policies."
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:42
+msgid ""
+"Plugins should only be listed once. The order in which the plugins are "
+"listed is also the order in which they are chained for request processing."
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:57
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:71
+msgid "See also"
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:73
+msgid ""
+":manpage:`TSAPI(3ts)`, :manpage:`TSPluginInit(3ts)`, :manpage:`remap."
+"config(5)`"
+msgstr ""
+
+#: ../../reference/configuration/plugin.config.en.rst:46
+msgid ""
+"An option list of whitespace-separated arguments may follow the plugin "
+"name. These are passed as an argument vector to the plugin's initialization "
+"function, :c:func:`TSPluginInit`. Arguments that begin with the ``$`` "
+"character designate Traffic Server configuration variables. These arguments "
+"will be replaced with the value of the corresponding configuration variable "
+"before the plugin is loaded. When using configuration variable expansion, "
+"note that most Traffic Server configuration can be changed. If a plugin "
+"requires the current value, it must obtain that using the management API."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/records.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/records.config.en.po
new file mode 100644
index 00000000..373a6e37
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/records.config.en.po
@@ -0,0 +1,3488 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2014-01-12 21:37+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/records.config.en.rst:20
+msgid "records.config"
+msgstr "records.config"
+
+#: ../../reference/configuration/records.config.en.rst:24
+msgid ""
+"The :file:`records.config` file is a list of configurable variables used by "
+"the Traffic Server software. Many of the variables in the :file:`records."
+"config` file are set automatically when you set configuration options in "
+"Traffic Line or Traffic Shell. After you modify the :file:`records.config` "
+"file, run the command :option:`traffic_line -x` to apply the changes. When "
+"you apply changes to one node in a cluster, Traffic Server automatically "
+"applies the changes to all other nodes in the cluster."
+msgstr ""
+":file:`records.config` ファイルは Traffic Server で使用される設定変数の一覧"
+"です。 :file:`records.config` ファイル内の多くの変数は Traffic Line や "
+"Traffic Shell でオプションの調整を行うと自動的に設定されます。:file:"
+"`records.config` ファイルに変更を加えた後は、:option:`traffic_line -x` を実"
+"行して変更を適用します。クラスター内の一つのノードに変更を適用すると "
+"Traffic Server は自動的にクラスター内の他のすべてのノードに変更を適用しま"
+"す。"
+
+#: ../../reference/configuration/records.config.en.rst:34
+msgid "Format"
+msgstr "フォーマット"
+
+#: ../../reference/configuration/records.config.en.rst:36
+msgid "Each variable has the following format::"
+msgstr "それぞれの変数は次のフォーマットとなっています"
+
+#: ../../reference/configuration/records.config.en.rst:40
+msgid "where"
+msgstr "この中の"
+
+#: ../../reference/configuration/records.config.en.rst:42
+msgid ""
+"``SCOPE`` is related to clustering and is either ``CONFIG`` (all members of "
+"the cluster) or ``LOCAL`` (only the local machine)"
+msgstr ""
+"``SCOPE`` はクラスタリングに関係しており、``CONFIG`` (クラスターの全メン"
+"バー) もしくは ``LOCAL`` (ローカルマシンのみ)  のどちらかです。"
+
+#: ../../reference/configuration/records.config.en.rst:45
+msgid ""
+"``DATATYPE`` is one of ``INT`` (integer), ``STRING`` (string), ``FLOAT`` "
+"(floating point). : A variable marked as ``Deprecated`` is still functional "
+"but should be avoided as it may be removed in a future release without "
+"warning."
+msgstr ""
+"``DATATYPE`` は ``INT`` (integer) 、``STRING`` (string) 、``FLOAT`` "
+"(floating point) のいずれかです。``Deprecated`` と記された変数はまだ機能しま"
+"すが、将来のリリースで予告なく削除されるかもしれないので避けるべきです。"
+
+#: ../../reference/configuration/records.config.en.rst:51
+msgid "A variable marked as ``Reloadable`` can be updated via the command::"
+msgstr "``Reloadable`` と記された変数は次のコマンドで更新可能です。"
+
+#: ../../reference/configuration/records.config.en.rst:55
+msgid ""
+"``INT`` type configurations are expressed as any normal integer, e.g. "
+"*32768*. They can also be expressed using more human readable values using "
+"standard prefixes, e.g. *32K*. The following prefixes are supported for all "
+"``INT`` type configurations"
+msgstr ""
+"``INT`` 型の設定はあらゆる整数で表現できます。例えば *32768* のように。これ"
+"はまた標準的なプレフィックスを使用してより人間が読みやすい値でも表現できま"
+"す。例えば *32K* のように。``INT`` 型の設定では次のプレフィックスがサポート"
+"されています。"
+
+#: ../../reference/configuration/records.config.en.rst:60
+msgid "``K`` Kilobytes (1024 bytes)"
+msgstr "``K`` キロバイト (1024 バイト)"
+
+#: ../../reference/configuration/records.config.en.rst:61
+msgid "``M`` Megabytes (1024^2 or 1,048,576 bytes)"
+msgstr "``M`` メガバイト (1024^2 または 1,048,576 バイト)"
+
+#: ../../reference/configuration/records.config.en.rst:63
+msgid "``T`` Terabytes (1024^4 or 1,099,511,627,776 bytes)"
+msgstr "``T`` テラバイト (1024^4 または 1,099,511,627,776 バイト)"
+
+#: ../../reference/configuration/records.config.en.rst:67
+msgid ""
+"Traffic Server currently writes back configurations to disk periodically, "
+"and when doing so, will not preserve the prefixes."
+msgstr ""
+"Traffic Server は定期的に設定をディスクに書き戻し、その際にはプレフィックス"
+"は保持されません。"
+
+#: ../../reference/configuration/records.config.en.rst:71
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/configuration/records.config.en.rst:73
+msgid ""
+"In the following example, the variable `proxy.config.proxy_name`_ is a "
+"``STRING`` datatype with the value ``my_server``. This means that the name "
+"of the Traffic Server proxy is ``my_server``. ::"
+msgstr ""
+"次の例で、`proxy.config.proxy_name`_ 変数は ``my_server`` という値を持つ "
+"``STRING`` データ型の変数です。これは Traffic Server プロキシーの名前が "
+"``my_server`` であることを意味しています。::"
+
+#: ../../reference/configuration/records.config.en.rst:79
+msgid "If the server name should be ``that_server`` the line would be ::"
+msgstr ""
+"もしサーバー名が ``that_server`` であるべきなら行は次のようになります ::"
+
+#: ../../reference/configuration/records.config.en.rst:83
+msgid ""
+"In the following example, the variable ``proxy.config.arm.enabled`` is a "
+"yes/no flag. A value of ``0`` (zero) disables the option; a value of ``1`` "
+"enables the option. ::"
+msgstr ""
+"次の例で、``proxy.config.arm.enabled`` 変数は yes/no フラグです。値 ``0`` "
+"(ゼロ) はオプションを無効化し、値 ``1`` はオプションを有効化します。 ::"
+
+#: ../../reference/configuration/records.config.en.rst:89
+msgid ""
+"In the following example, the variable sets the cluster startup timeout to "
+"10 seconds. ::"
+msgstr ""
+"次の例で、変数はクラスターのスタートアップタイムアウトを 10 秒に設定しま"
+"す。 ::"
+
+#: ../../reference/configuration/records.config.en.rst:94
+msgid ""
+"The last examples configures a 64GB RAM cache, using a human readable "
+"prefix. ::"
+msgstr ""
+"最後の例は、人間が読みやすいプレフィックスを使用して RAM キャッシュを 64GB "
+"に設定します。"
+
+#: ../../reference/configuration/records.config.en.rst:101
+msgid "Environment Overrides"
+msgstr "環境の再定義"
+
+#: ../../reference/configuration/records.config.en.rst:103
+msgid ""
+"Every :file:`records.config` configuration variable can be overridden by a "
+"corresponding environment variable. This can be useful in situations where "
+"you need a static :file:`records.config` but still want to tweak one or two "
+"settings. The override variable is formed by converting the :file:`records."
+"config` variable name to upper case, and replacing any dot separators with "
+"an underscore."
+msgstr ""
+":file:`records.config` の各設定変数は対応する環境変数で再定義できます。これ"
+"は静的な :file:`records.config` が必要であるが 1、2 個の設定だけ調整したいと"
+"いう状況で便利です。再定義変数は :file:`records.config` の変数名を大文字に"
+"し、ドットをアンダースコアに置換えたものになっています。"
+
+#: ../../reference/configuration/records.config.en.rst:110
+msgid ""
+"Overriding a variable from the environment is permanent and will not be "
+"affected by future configuration changes made in :file:`records.config` or "
+"applied with :program:`traffic_line`."
+msgstr ""
+"環境からの変数の再定義は恒久的であり、:file:`records.config` の変更や :"
+"program:`traffic_line` での適用による将来的な設定変更の影響を受けません。"
+
+#: ../../reference/configuration/records.config.en.rst:114
+msgid ""
+"For example, we could override the `proxy.config.product_company`_ variable "
+"like this::"
+msgstr ""
+"例えば、`proxy.config.product_company`_ 変数はこのように再定義できるでしょう"
+
+#: ../../reference/configuration/records.config.en.rst:123
+msgid "Configuration Variables"
+msgstr "設定変数"
+
+#: ../../reference/configuration/records.config.en.rst:125
+msgid ""
+"The following list describes the configuration variables available in the :"
+"file:`records.config` file."
+msgstr ""
+"次の一覧では :file:`records.config` ファイル内で利用可能な設定変数について説"
+"明します。"
+
+#: ../../reference/configuration/records.config.en.rst:129
+msgid "System Variables"
+msgstr "システム変数"
+
+#: ../../reference/configuration/records.config.en.rst:133
+msgid "The name of the organization developing Traffic Server."
+msgstr "Traffic Server を開発している組織の名称。"
+
+#: ../../reference/configuration/records.config.en.rst:137
+msgid "The name of the vendor providing Traffic Server."
+msgstr "Traffic Server を提供しているベンダーの名称。"
+
+#: ../../reference/configuration/records.config.en.rst:141
+msgid "The name of the product."
+msgstr "プロダクトの名称。"
+
+#: ../../reference/configuration/records.config.en.rst:146
+msgid "The name of the Traffic Server node."
+msgstr "Traffic Server ノードの名称。"
+
+#: ../../reference/configuration/records.config.en.rst:150
+msgid "The location of the Traffic Server ``bin`` directory."
+msgstr "Traffic Server の ``bin`` ディレクトリの位置。"
+
+#: ../../reference/configuration/records.config.en.rst:154
+msgid ""
+"The name of the executable that runs the :program:`traffic_server` process."
+msgstr ":program:`traffic_server` プロセスを実行する実行ファイルの名称。"
+
+#: ../../reference/configuration/records.config.en.rst:158
+msgid "The command-line options for starting Traffic Server."
+msgstr "Traffic Server をスタートする際のコマンドラインオプション。"
+
+#: ../../reference/configuration/records.config.en.rst:162
+msgid ""
+"The name of the executable that runs the :program:`traffic_manager` process."
+msgstr ":program:`traffic_manager` プロセスを実行する実行ファイルの名称。"
+
+#: ../../reference/configuration/records.config.en.rst:166
+msgid ""
+"The script executed before the :program:`traffic_manager` process spawns "
+"the :program:`traffic_server` process."
+msgstr ""
+":program:`traffic_manager` プロセスが :program:`traffic_server` プロセスを立"
+"ち上げる前に実行するスクリプト。"
+
+#: ../../reference/configuration/records.config.en.rst:180
+msgid "The email address to which Traffic Server sends alarm messages."
+msgstr "Traffic Server がアラームメッセージを送信するメールアドレス。"
+
+#: ../../reference/configuration/records.config.en.rst:182
+msgid ""
+"During a custom Traffic Server installation, you can specify the email "
+"address; otherwise, Traffic Server uses the Traffic Server user account "
+"name as the default value for this variable."
+msgstr ""
+"Traffic Server のカスタムインストレーションの中で指定できるメールアドレスで"
+"す。指定されない場合、Traffic Server は Traffic Server の ユーザーアカウント"
+"名をこの変数のデフォルト値として使用します。"
+
+#: ../../reference/configuration/records.config.en.rst:187
+msgid ""
+"The facility used to record system log files. Refer to :ref:`understanding-"
+"traffic-server-log-files`."
+msgstr ""
+"システムログファイルを記録する機能です。 :ref:`understanding-traffic-server-"
+"log-files` を参照してください。"
+
+#: ../../reference/configuration/records.config.en.rst:191
+msgid ""
+"The signal sent to :program:`traffic_cop`'s managed processes to stop them."
+msgstr ""
+":program:`traffic_cop` の管理しているプロセスを停止するために送信されるシグ"
+"ナルです。"
+
+#: ../../reference/configuration/records.config.en.rst:193
+msgid "A value of ``0`` means no signal will be sent."
+msgstr "値 ``0`` はシグナルが送信されないことを意味します。"
+
+#: ../../reference/configuration/records.config.en.rst:197
+msgid ""
+"The minimum amount of free swap space allowed before Traffic Server stops "
+"the :program:`traffic_server` and :program:`traffic_manager` processes to "
+"prevent the system from hanging. This configuration variable applies if "
+"swap is enabled in Linux 2.2 only."
+msgstr ""
+"Traffic Server がシステムのハングを防ぐために :program:`traffic_server` と :"
+"program:`traffic_manager` プロセスを停止させるまでに許されるスワップ領域の最"
+"小空き容量です。この設定変数は Linux 2.2 でスワップが有効化されている場合の"
+"み適用されます。`"
+
+#: ../../reference/configuration/records.config.en.rst:202
+msgid ""
+"The name and location of the file that contains warnings, status messages, "
+"and error messages produced by the Traffic Server processes. If no path is "
+"specified, then Traffic Server creates the file in its logging directory."
+msgstr ""
+"Traffic Server プロセスによって生成される警告、ステータスメッセージ、エラー"
+"メッセージを含むファイルの名前と場所。パスが指定されていない場合、Traffic "
+"Server はロギングディレクトリにファイルを作成します。"
+
+#: ../../reference/configuration/records.config.en.rst:214
+msgid ""
+"When enabled (the default, ``1``), Traffic Server scales threads according "
+"to the available CPU cores. See the config option below."
+msgstr ""
+"有効化すると (デフォルトは ``1``) 、Traffic Server は CPU のコア数をもとにス"
+"レッドをスケールします。以下の設定オプションを見てください。"
+
+#: ../../reference/configuration/records.config.en.rst:218
+msgid ""
+"Factor by which Traffic Server scales the number of threads. The multiplier "
+"is usually the number of available CPU cores. By default this is scaling "
+"factor is ``1.5``."
+msgstr ""
+"Traffic Server がスレッド数をスケールする際の係数。乗数は通常利用可能な CPU "
+"のコア数です。デフォルトではスケーリング係数は ``1.5`` です。"
+
+#: ../../reference/configuration/records.config.en.rst:223
+msgid "*XXX* What does this do?"
+msgstr "*XXX* これ何するの? (訳注: 原文にそう書かれています。)"
+
+#: ../../reference/configuration/records.config.en.rst:227
+msgid ""
+"When enabled (``1``), runs a separate thread for accept processing. If "
+"disabled (``0``), then only 1 thread can be created."
+msgstr ""
+"有効化 (``1``) すると、accept 処理を別のスレッドで実行します。無効化 "
+"(``0``) すると、1 スレッドのみ作られます。"
+
+#: ../../reference/configuration/records.config.en.rst:231
+msgid ""
+"The new default thread stack size, for all threads. The original default is "
+"set at 1 MB."
+msgstr ""
+"全スレッドに適用される、スレッドスタックサイズの新しいデフォルト値です。元々"
+"のデフォルトは 1 MB に設定されています。"
+
+#: ../../reference/configuration/records.config.en.rst:238
+#: ../../reference/configuration/records.config.en.rst:305
+#: ../../reference/configuration/records.config.en.rst:520
+#: ../../reference/configuration/records.config.en.rst:538
+#: ../../reference/configuration/records.config.en.rst:1447
+#: ../../reference/configuration/records.config.en.rst:1738
+msgid "Value"
+msgstr "値"
+
+#: ../../reference/configuration/records.config.en.rst:238
+#: ../../reference/configuration/records.config.en.rst:305
+#: ../../reference/configuration/records.config.en.rst:520
+#: ../../reference/configuration/records.config.en.rst:538
+#: ../../reference/configuration/records.config.en.rst:1738
+msgid "Effect"
+msgstr "効果"
+
+#: ../../reference/configuration/records.config.en.rst:240
+#: ../../reference/configuration/records.config.en.rst:307
+#: ../../reference/configuration/records.config.en.rst:523
+#: ../../reference/configuration/records.config.en.rst:541
+#: ../../reference/configuration/records.config.en.rst:1450
+#: ../../reference/configuration/records.config.en.rst:1741
+msgid "1"
+msgstr "1"
+
+#: ../../reference/configuration/records.config.en.rst:240
+msgid "assign threads to sockets"
+msgstr "スレッドをソケットに割り当てます"
+
+#: ../../reference/configuration/records.config.en.rst:241
+#: ../../reference/configuration/records.config.en.rst:308
+#: ../../reference/configuration/records.config.en.rst:524
+#: ../../reference/configuration/records.config.en.rst:542
+#: ../../reference/configuration/records.config.en.rst:1451
+#: ../../reference/configuration/records.config.en.rst:1742
+msgid "2"
+msgstr "2"
+
+#: ../../reference/configuration/records.config.en.rst:241
+msgid "assign threads to real cores"
+msgstr "スレッドを実コアに割り当てます"
+
+#: ../../reference/configuration/records.config.en.rst:242
+#: ../../reference/configuration/records.config.en.rst:309
+#: ../../reference/configuration/records.config.en.rst:525
+#: ../../reference/configuration/records.config.en.rst:543
+#: ../../reference/configuration/records.config.en.rst:1452
+#: ../../reference/configuration/records.config.en.rst:1743
+msgid "3"
+msgstr "3"
+
+#: ../../reference/configuration/records.config.en.rst:242
+msgid "assign threads to logical cores"
+msgstr "スレッドを論理コアに割り当てます"
+
+#: ../../reference/configuration/records.config.en.rst:243
+#: ../../reference/configuration/records.config.en.rst:522
+#: ../../reference/configuration/records.config.en.rst:540
+#: ../../reference/configuration/records.config.en.rst:1449
+#: ../../reference/configuration/records.config.en.rst:1740
+msgid "0"
+msgstr "0"
+
+#: ../../reference/configuration/records.config.en.rst:243
+msgid "don't assign threads to any cores"
+msgstr "スレッドをコアに割り当てません"
+
+#: ../../reference/configuration/records.config.en.rst:248
+msgid ""
+"This option only has an affect when Traffic Server has been compiled with "
+"``--enable-hwloc``."
+msgstr ""
+"このオプションは Traffic Server が ``--enable-hwloc`` 付きでコンパイルされて"
+"いる場合のみ効果があります。"
+
+#: ../../reference/configuration/records.config.en.rst:251
+msgid "Network"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:255
+msgid ""
+"Controls the global default IP addresses to which to bind proxy server "
+"ports. The value is a space separated list of IP addresses, one per "
+"supported IP address family (currently IPv4 and IPv6)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:257
+msgid ""
+"Unless explicitly specified in `proxy.config.http.server_ports`_ the server "
+"port will be bound to one of these addresses, selected by IP address "
+"family. The built in default is any address. This is used if no address for "
+"a family is specified. This setting is useful if most or all server ports "
+"should be bound to the same address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:261
+msgid ""
+"This is ignored for inbound transparent server ports because they must be "
+"able to accept connections on arbitrary IP addresses."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:0
+msgid "Example"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:265
+msgid ""
+"Set the global default for IPv4 to ``192.168.101.18`` and leave the global "
+"default for IPv6 as any address.::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:271
+msgid ""
+"Set the global default for IPv4 to ``191.68.101.18`` and the global default "
+"for IPv6 to ``fc07:192:168:101::17``.::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:277
+msgid ""
+"This controls the global default for the local IP address for outbound "
+"connections to origin servers. The value is a list of space separated IP "
+"addresses, one per supported IP address family (currently IPv4 and IPv6)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:279
+msgid ""
+"Unless explicitly specified in `proxy.config.http.server_ports`_ one of "
+"these addresses, selected by IP address family, will be used as the local "
+"address for outbound connections. This setting is useful if most or all of "
+"the server ports should use the same outbound IP addresses."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:283
+msgid ""
+"This is ignored for outbound transparent ports as the local outbound "
+"address will be the same as the client local address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:293
+msgid ""
+"Set the default local outbound IP address to ``192.168.101.17`` for IPv4 "
+"and ``fc07:192:168:101::17`` for IPv6.::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:298
+msgid "Cluster"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:302
+msgid "Sets the clustering mode:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:307
+msgid "full-clustering mode"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:308
+msgid "management-only mode"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:309
+msgid "no clustering"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:314
+msgid ""
+"The reliable service port. The reliable service port is used to send "
+"configuration information between the nodes in a cluster. All nodes in a "
+"cluster must use the same reliable service port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:319
+msgid ""
+"The number of threads for cluster communication. On heavy cluster, the "
+"number should be adjusted. It is recommend that take the thread CPU usage "
+"as a reference when adjusting."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:324
+msgid "Set the interface to use for cluster communications."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:328
+msgid ""
+"This turns on the local caching of objects in cluster mode. The point of "
+"this is to allow for popular or **hot** content to be cached on all nodes "
+"in a cluster. Be aware that the primary way to configure this behavior is "
+"via the :file:`cache.config` configuration file using ``action=cluster-"
+"cache-local`` directives."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:334
+msgid ""
+"This particular :file:`records.config` configuration can be controlled per "
+"transaction or per remap rule. As such, it augments the :file:`cache."
+"config` directives, since you can turn on the local caching feature without "
+"complex regular expression matching."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:339
+msgid ""
+"This implies that turning this on in your global :file:`records.config` is "
+"almost never what you want; instead, you want to use this either via e.g. "
+"``conf_remap.so`` overrides for a certain remap rule, or through a custom "
+"plugin using the appropriate APIs."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:346
+msgid "Local Manager"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:350
+msgid "The semaphore ID for the local manager."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:354
+msgid "The autoconfiguration port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:358
+msgid "The maximum number of copies of rolled configuration files to keep."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:362
+msgid ""
+"Option used to specify who to run the :program:`traffic_server` process as; "
+"also used to specify ownership of config and log files."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:364
+msgid "The nonprivileged user account designated to Traffic Server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:366
+msgid ""
+"As of version 2.1.1 if the user_id is prefixed with pound character (#) the "
+"remaining of the string is considered to be a `numeric user identifier "
+"<http://en.wikipedia.org/wiki/User_identifier>`_. If the value is set to "
+"``#-1`` Traffic Server will not change the user during startup."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:370
+msgid ""
+"Setting ``user_id`` to ``root`` or ``#0`` is now forbidden to increase "
+"security. Trying to do so, will cause the :program:`traffic_server` fatal "
+"failure. However there are two ways to bypass that restriction"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:375
+msgid "Specify ``-DBIG_SECURITY_HOLE`` in ``CXXFLAGS`` during compilation."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:376
+msgid "Set the ``user_id=#-1`` and start trafficserver as root."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:379
+msgid "Process Manager"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:383
+msgid ""
+"The port used for internal communication between the :program:"
+"`traffic_manager` and :program:`traffic_server` processes."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:386
+msgid "Alarm Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:390
+msgid ""
+"Name of the script file that can execute certain actions when an alarm is "
+"signaled. The default file is a sample script named ``example_alarm_bin."
+"sh`` located in the ``bin`` directory. You must dit the script to suit your "
+"needs."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:395
+msgid ""
+"The full path to the script file that sends email to alert someone bout "
+"Traffic Server problems."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:398
+msgid "HTTP Engine"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:402
+msgid "Ports used for proxying HTTP traffic."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:404
+msgid ""
+"This is a list, separated by space or comma, of :index:`port descriptors`. "
+"Each descriptor is a sequence of keywords and values separated by colons. "
+"Not all keywords have values, those that do are specifically noted. "
+"Keywords with values can have an optional '=' character separating the "
+"keyword and value. The case of keywords is ignored. The order of keywords "
+"is irrelevant but unspecified results may occur if incompatible options are "
+"used (noted below). Options without values are idempotent. Options with "
+"values use the last (right most) value specified, except for ``ip-out`` as "
+"detailed later."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:406
+msgid "Quick reference chart."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:409
+msgid "Name"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:409
+msgid "Note"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:409
+msgid "Definition"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:411
+#: ../../reference/configuration/records.config.en.rst:427
+msgid "*number*"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:411
+msgid "**Required**"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:411
+msgid "The local port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:412
+#: ../../reference/configuration/records.config.en.rst:430
+#: ../../reference/configuration/records.config.en.rst:1493
+msgid "ipv4"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:412
+msgid "**Default**"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:412
+msgid "Bind to IPv4 address family."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:413
+#: ../../reference/configuration/records.config.en.rst:433
+#: ../../reference/configuration/records.config.en.rst:1494
+msgid "ipv6"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:413
+msgid "Bind to IPv6 address family."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:414
+#: ../../reference/configuration/records.config.en.rst:438
+msgid "tr-in"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:414
+msgid "Inbound transparent."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:415
+#: ../../reference/configuration/records.config.en.rst:443
+msgid "tr-out"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:415
+msgid "Outbound transparent."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:416
+#: ../../reference/configuration/records.config.en.rst:448
+msgid "tr-full"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:416
+msgid "Fully transparent (inbound and outbound)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:417
+#: ../../reference/configuration/records.config.en.rst:451
+msgid "tr-pass"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:417
+msgid "Pass through enabled."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:418
+#: ../../reference/configuration/records.config.en.rst:473
+#: ../../reference/configuration/records.config.en.rst:1875
+msgid "ssl"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:418
+msgid "SSL terminated."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:419
+#: ../../reference/configuration/records.config.en.rst:456
+msgid "ip-in"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:419
+#: ../../reference/configuration/records.config.en.rst:420
+#: ../../reference/configuration/records.config.en.rst:421
+msgid "**Value**"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:419
+msgid "Local inbound IP address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:420
+#: ../../reference/configuration/records.config.en.rst:463
+msgid "ip-out"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:420
+msgid "Local outbound IP address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:421
+#: ../../reference/configuration/records.config.en.rst:468
+msgid "ip-resolve"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:421
+msgid "IP address resolution style."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:422
+#: ../../reference/configuration/records.config.en.rst:478
+msgid "blind"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:422
+msgid "Blind (``CONNECT``) port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:423
+#: ../../reference/configuration/records.config.en.rst:481
+msgid "compress"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:423
+msgid "**N/I**"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:423
+msgid "Compressed. Not implemented."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:427
+msgid ""
+"Local IP port to bind. This is the port to which ATS clients will connect."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:430
+msgid ""
+"Use IPv4. This is the default and is included primarily for completeness. "
+"This forced if the ``ip-in`` option is used with an IPv4 address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:433
+msgid ""
+"Use IPv6. This is forced if the ``ip-in`` option is used with an IPv6 "
+"address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:438
+msgid "Not compatible with: ``ip-in``, ``ssl``, ``blind``"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:446
+msgid ""
+"Fully transparent. This is a convenience option and is identical to "
+"specifying both ``tr-in`` and ``tr-out``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:448
+msgid ""
+"Not compatible with: Any option not compatible with ``tr-in`` or ``tr-out``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:451
+msgid ""
+"Transparent pass through. This option is useful only for inbound "
+"transparent proxy ports. If the parsing of the expected HTTP header fails, "
+"then the transaction is switched to a blind tunnel instead of generating an "
+"error response to the client. It effectively enables :ts:cv:`proxy.config."
+"http.use_client_target_addr` for the transaction as there is no other place "
+"to obtain the origin server address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:456
+msgid "Not compatible with: ``tr-in``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:459
+msgid ""
+"Set the local IP address for outbound connections. This is the address used "
+"by ATS locally when it connects to an origin server for transactions on "
+"this port. If this is omitted :ts:cv:`proxy.local.outgoing_ip_to_bind` is "
+"used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:461
+msgid ""
+"This option can used multiple times, once for each IP address family. The "
+"address used is selected by the IP address family of the origin server "
+"address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:463
+#: ../../reference/configuration/records.config.en.rst:468
+msgid "Not compatible with: ``tr-out``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:466
+msgid ""
+"Set the :ts:cv:`host resolution style <proxy.config.hostdb.ip_resolve>` for "
+"transactions on this proxy port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:471
+msgid ""
+"Require SSL termination for inbound connections. SSL :ref:`must be "
+"configured <configuring-ssl-termination>` for this option to provide a "
+"functional server port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:476
+msgid "Accept only ``CONNECT`` transactions on this port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:478
+msgid "Not compatible with: ``tr-in``, ``ssl``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:481
+msgid ""
+"Compress the connection. Retained only by inertia, should be considered "
+"\"not implemented\"."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:485
+msgid "Listen on port 80 on any address for IPv4 and IPv6.::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:491
+msgid ""
+"Listen transparently on any IPv4 address on port 8080, and transparently on "
+"port 8080 on local address ``fc01:10:10:1::1`` (which implies ``ipv6``).::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:499
+msgid ""
+"Listen on port 8080 for IPv6, fully transparent. Set up an SSL port on 443. "
+"These ports will use the IP address from :ts:cv:`proxy.local."
+"incoming_ip_to_bind`.  Listen on IP address ``192.168.17.1``, port 80, "
+"IPv4, and connect to origin servers using the local address ``10.10.10.1`` "
+"for IPv4 and ``fc01:10:10:1::1`` for IPv6.::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:505
+msgid ""
+"The range of origin server ports that can be used for tunneling via "
+"``CONNECT``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:507
+msgid ""
+"Traffic Server allows tunnels only to the specified ports. Supports both "
+"wildcards ('\\*') and ranges (\"0-1023\")."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:512
+msgid ""
+"These are the ports on the *origin server*, not Traffic Server :ts:cv:"
+"`proxy ports <proxy.config.http.server_ports>`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:517
+msgid ""
+"Set how the ``Via`` field is handled on a request to the origin server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:522
+#: ../../reference/configuration/records.config.en.rst:540
+msgid "Do not modify / set this via header"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:523
+#: ../../reference/configuration/records.config.en.rst:541
+msgid "Update the via, with normal verbosity"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:524
+#: ../../reference/configuration/records.config.en.rst:542
+msgid "Update the via, with higher verbosity"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:525
+#: ../../reference/configuration/records.config.en.rst:543
+msgid "Update the via, with highest verbosity"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:535
+msgid "Set how the ``Via`` field is handled on the response to the client."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:553
+msgid "You can specify one of the following:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:555
+msgid "``0`` no Server: header is added to the response."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:556
+msgid "``1`` the Server: header is added (see string below)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:557
+msgid ""
+"``2`` the Server: header is added only if the response from rigin does not "
+"have one already."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:562
+msgid ""
+"This option specifies whether Traffic Server should insert an ``Age`` "
+"header in the response. The Age field value is the cache's estimate of the "
+"amount of time since the response was generated or revalidated by the "
+"origin server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:565
+msgid "``0`` no ``Age`` header is added"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:566
+msgid "``1`` the ``Age`` header is added"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:571
+msgid ""
+"The Server: string that ATS will insert in a response header (if requested, "
+"see above). Note that the current version number is always appended to this "
+"string."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:577
+msgid ""
+"Enables (``1``) or disables (``0``) ``.com`` domain expansion. This "
+"configures the Traffic Server to resolve unqualified hostnames by "
+"prepending with ``www.`` and appending with ``.com`` before redirecting to "
+"the expanded address. For example: if a client makes a request to ``host``, "
+"then Traffic Server redirects the request to ``www.host.com``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:584
+msgid "Specifies whether Traffic Sever can generate a chunked response:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:586
+msgid "``0`` Never"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:587
+msgid "``1`` Always"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:588
+msgid ""
+"``2`` Generate a chunked response if the server has returned HTTP/1.1 before"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:589
+msgid ""
+"``3`` = Generate a chunked response if the client request is HTTP/1.1 and "
+"the origin server has returned HTTP/1.1 before"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:593
+msgid ""
+"If HTTP/1.1 is used, then Traffic Server can use keep-alive connections "
+"with pipelining to origin servers. If HTTP/0.9 is used, then Traffic Server "
+"does not use ``keep-alive`` connections to origin servers. If HTTP/1.0 is "
+"used, then Traffic Server can use ``keep-alive`` connections without "
+"pipelining to origin servers."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:602
+msgid "Enables (``1``) or disables (``0``) the reuse of server sessions."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:607
+msgid ""
+"Enables (``1``) or disables (``0``) :program:`traffic_cop` heartbeat ogging."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:611
+msgid ""
+"For fully transparent ports use the same origin server address as the "
+"client."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:613
+msgid ""
+"This option causes Traffic Server to avoid where possible doing DNS lookups "
+"in forward transparent proxy mode. The option is only effective if the "
+"following three conditions are true -"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:617
+msgid "Traffic Server is in forward proxy mode."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:618
+msgid "The proxy port is inbound transparent."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:619
+msgid "The target URL has not been modified by either remapping or a plugin."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:621
+msgid ""
+"If any of these conditions are not true, then normal DNS processing is done "
+"for the connection."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:624
+msgid ""
+"If all of these conditions are met, then the origin server IP address is "
+"retrieved from the original client connection, rather than through HostDB "
+"or DNS lookup. In effect, client DNS resolution is used instead of Traffic "
+"Server DNS."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:629
+msgid ""
+"This can be used to be a little more efficient (looking up the target once "
+"by the client rather than by both the client and Traffic Server) but the "
+"primary use is when client DNS resolution can differ from that of Traffic "
+"Server. Two known uses cases are:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:634
+msgid ""
+"Embedded IP addresses in a protocol with DNS load sharing. In this case, "
+"even though Traffic Server and the client both make the same request to the "
+"same DNS resolver chain, they may get different origin server addresses. If "
+"the address is embedded in the protocol then the overall exchange will "
+"fail. One current example is Microsoft Windows update, which presumably "
+"embeds the address as a security measure."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:642
+msgid ""
+"The client has access to local DNS zone information which is not available "
+"to Traffic Server. There are corporate nets with local DNS information for "
+"internal servers which, by design, is not propagated outside the core "
+"corporate network. Depending a network topology it can be the case that "
+"Traffic Server can access the servers by IP address but cannot resolve such "
+"addresses by name. In such as case the client supplied target address must "
+"be used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:651
+msgid ""
+"This solution must be considered interim. In the longer term, it should be "
+"possible to arrange for much finer grained control of DNS lookup so that "
+"wildcard domain can be set to use Traffic Server or client resolution. In "
+"both known use cases, marking specific domains as client determined (rather "
+"than a single global switch) would suffice. It is possible to do this "
+"crudely with this flag by enabling it and then use identity URL mappings to "
+"re-disable it for specific domains."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:680
+msgid "Parent Proxy Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:685
+msgid ""
+"Enables (``1``) or disables (``0``) the parent caching option. Refer to :"
+"ref:`hierarchical-caching`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:690
+msgid ""
+"The amount of time allowed between connection retries to a parent cache "
+"that is unavailable."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:695
+msgid ""
+"The number of times the connection to the parent cache can fail before "
+"Traffic Server considers the parent unavailable."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:700
+msgid ""
+"The total number of connection attempts allowed to a parent cache before "
+"Traffic Server bypasses the parent or fails the request (depending on the "
+"``go_direct`` option in the :file:`parent.config` file)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:706
+msgid ""
+"The total number of connection attempts allowed per parent, if multiple "
+"parents are used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:711
+msgid "The timeout value (in seconds) for parent cache connection attempts."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:716
+msgid ""
+"Configures Traffic Server to send proxy authentication headers on to the "
+"parent cache."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:721
+msgid ""
+"Don't try to resolve DNS, forward all DNS requests to the parent. This is "
+"off (``0``) by default."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:727
+msgid "HTTP Connection Timeouts"
+msgstr "HTTP 接続タイムアウト"
+
+#: ../../reference/configuration/records.config.en.rst:732
+msgid ""
+"Specifies how long Traffic Server keeps connections to clients open for a "
+"subsequent request after a transaction ends."
+msgstr ""
+"一つのトランザクションが終了した後に続けて発生するリクエストのために "
+"Traffic Server がクライアントとの接続をどれだけ長く維持するかを指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:737
+msgid ""
+"Specifies how long Traffic Server keeps connections to origin servers open "
+"for a subsequent transfer of data after a transaction ends."
+msgstr ""
+"一つのトランザクションが終了した後に続けて発生するデータ転送のために "
+"Traffic Server がオリジンサーバーとの接続をどれだけ長く維持するかを指定しま"
+"す。"
+
+#: ../../reference/configuration/records.config.en.rst:742
+msgid ""
+"Specifies how long Traffic Server keeps connections to clients open if a "
+"transaction stalls."
+msgstr ""
+"トランザクションがストールした場合に Traffic Server がクライアントとの接続を"
+"どれだけ長く維持するかを指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:747
+msgid ""
+"Specifies how long Traffic Server keeps connections to origin servers open "
+"if the transaction stalls."
+msgstr ""
+"トランザクションがストールした場合に Traffic Server がオリジンサーバーとの接"
+"続をどれだけ長く維持するかを指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:752
+msgid ""
+"The maximum amount of time Traffic Server can remain connected to a client. "
+"If the transfer to the client is not complete before this timeout expires, "
+"then Traffic Server closes the connection."
+msgstr ""
+"Traffic Server がクライアントと接続していられる最大時間です。クライアントへ"
+"の転送がこのタイムアウトまでに完了しない場合、Traffic Server は接続を閉じま"
+"す。"
+
+#: ../../reference/configuration/records.config.en.rst:755
+#: ../../reference/configuration/records.config.en.rst:763
+msgid "The default value of ``0`` specifies that there is no timeout."
+msgstr "デフォルト値 ``0`` はタイムアウト無しを指定しています。"
+
+#: ../../reference/configuration/records.config.en.rst:760
+msgid ""
+"The maximum amount of time Traffic Server waits for fulfillment of a "
+"connection request to an origin server. If Traffic Server does not complete "
+"the transfer to the origin server before this timeout expires, then Traffic "
+"Server terminates the connection request."
+msgstr ""
+"Traffic Server がオリジンサーバーへの接続要求を完了するまでに待機できる最大"
+"時間です。Traffic Server がオリジンサーバーへの転送をタイムアウトまでに完了"
+"しない場合、Traffic Server は接続要求を終了します。"
+
+#: ../../reference/configuration/records.config.en.rst:768
+msgid ""
+"The timeout interval in seconds before Traffic Server closes a connection "
+"that has no activity."
+msgstr "Traffic Server が活動のない接続をクローズするまでの秒数です。"
+
+#: ../../reference/configuration/records.config.en.rst:773
+msgid ""
+"Specifies how long Traffic Server continues a background fill before giving "
+"up and dropping the origin server connection."
+msgstr ""
+"オリジンサーバーとの接続を放棄する前に Traffic Server が background fill を"
+"継続する時間を指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:778
+msgid ""
+"The proportion of total document size already transferred when a client "
+"aborts at which the proxy continues fetching the document from the origin "
+"server to get it into the cache (a **background fill**)."
+msgstr ""
+"ドキュメントを取得してキャッシュに入れるためにプロキシーがオリジンサーバーか"
+"らその取得を継続するクライアントが中断した時点ですでに転送済みのドキュメント"
+"の総サイズに対する割合 (**background fill**) 。"
+
+#: ../../reference/configuration/records.config.en.rst:782
+msgid "Origin Server Connect Attempts"
+msgstr "オリジンサーバーへの接続の試行"
+
+#: ../../reference/configuration/records.config.en.rst:787
+msgid ""
+"The maximum number of connection retries Traffic Server can make when the "
+"origin server is not responding."
+msgstr ""
+"オリジンサーバーが応答しない場合に Traffic Server が再接続を行える最大回数。"
+
+#: ../../reference/configuration/records.config.en.rst:792
+msgid ""
+"The maximum number of connection retries Traffic Server can make when the "
+"origin server is unavailable."
+msgstr ""
+"オリジンサーバーが利用不能な場合に Traffic Server が再接続を行える最大回数。"
+
+#: ../../reference/configuration/records.config.en.rst:797
+msgid ""
+"Limits the number of socket connections across all origin servers to the "
+"value specified. To disable, set to zero (``0``)."
+msgstr ""
+"全オリジンサーバーにおけるソケットの接続数を指定した値に制限します。無効化す"
+"るには、ゼロ (``0``) を設定してください。"
+
+#: ../../reference/configuration/records.config.en.rst:807
+msgid ""
+"Limits the number of socket connections per origin server to the value "
+"specified. To enable, set to one (``1``)."
+msgstr ""
+"オリジンサーバー毎のソケットの接続数を指定した値に制限します。有効化するに"
+"は、イチ (``1``) を設定してください。"
+
+#: ../../reference/configuration/records.config.en.rst:812
+msgid ""
+"As connection to an origin server are opened, keep at least 'n' number of "
+"connections open to that origin, even if the connection isn't used for a "
+"long time period. Useful when the origin supports keep-alive, removing the "
+"time needed to set up a new connection from the next request at the expense "
+"of added (inactive) connections. To enable, set to one (``1``)."
+msgstr ""
+"接続済みのオリジンサーバーへの接続として、接続が長い期間使われていない場合で"
+"も少なくとも 'n' 個の接続を維持します。オリジンが keep-alive に対応している"
+"場合に便利であり、(不活発な) 接続の追加により次のリクエストから新しい接続の"
+"準備に必要となる時間を不要とします。有効化するには、イチ (``1``) を設定して"
+"ください。"
+
+#: ../../reference/configuration/records.config.en.rst:820
+msgid ""
+"The maximum number of failed connection attempts allowed before a round-"
+"robin entry is marked as 'down' if a server has round-robin DNS entries."
+msgstr ""
+"サーバーがラウンドロビンの DNS エントリーを持っている場合に、一つのラウンド"
+"ロビンエントリーが '落ちてる' とマークされるまでに許される接続失敗の最大数。"
+
+#: ../../reference/configuration/records.config.en.rst:826
+msgid "The timeout value (in seconds) for an origin server connection."
+msgstr "オリジンサーバーへの接続のタイムアウト値 ( 秒 ) 。"
+
+#: ../../reference/configuration/records.config.en.rst:831
+msgid ""
+"The timeout value (in seconds) for an origin server connection when the "
+"client request is a ``POST`` or ``PUT`` request."
+msgstr ""
+"クライアントのリクエストが ``POST`` か ``PUT`` リクエストのときのオリジン"
+"サーバーへの接続のタイムアウト値 ( 秒 ) 。"
+
+#: ../../reference/configuration/records.config.en.rst:837
+msgid ""
+"Specifies how long (in seconds) Traffic Server remembers that an origin "
+"server was unreachable."
+msgstr ""
+"オリジンサーバーが到達不可能であったと Traffic Server が覚えている長さ "
+"( 秒 ) を指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:842
+msgid ""
+"The number of seconds before Traffic Server marks an origin server as "
+"unavailable after a client abandons a request because the origin server was "
+"too slow in sending the response header."
+msgstr ""
+"オリジンサーバーがレスポンスヘッダーを返すのが遅すぎるためにクライアントがリ"
+"クエストを断念した後で、Traffic Server がオリジンサーバーを到達不能とマーク"
+"するまでの秒数。"
+
+#: ../../reference/configuration/records.config.en.rst:850
+msgid "Congestion Control"
+msgstr "輻輳制御"
+
+#: ../../reference/configuration/records.config.en.rst:854
+msgid ""
+"Enables (``1``) or disables (``0``) the Congestion Control option, which "
+"configures Traffic Server to stop forwarding HTTP requests to origin "
+"servers when they become congested. Traffic Server sends the client a "
+"message to retry the congested origin server later. Refer to :ref:`using-"
+"congestion-control`."
+msgstr ""
+"輻輳制御オプションを有効化 (``1``) もしくは無効化 (``0``) し、オリジンサー"
+"バーが輻輳した際に Traffic Server が HTTP リクエストを転送するのを止めます。"
+"Traffic Server は後で輻輳しているオリジンサーバーに再試行するためにクライア"
+"ントにメッセージを送信します。:ref:`using-congestion-control` を参照してくだ"
+"さい。"
+
+#: ../../reference/configuration/records.config.en.rst:860
+msgid ""
+"Transaction buffering / flow control is enabled if this is set to a non-"
+"zero value. Otherwise no flow control is done."
+msgstr ""
+"非ゼロ値を設定するとトランザクションのバッファリング / フロー制御が有効化さ"
+"れます。そうでない場合はフロー制御は行われません。"
+
+#: ../../reference/configuration/records.config.en.rst:865
+msgid ""
+"The high water mark for transaction buffer control. External source I/O is "
+"halted when the total buffer space in use by the transaction exceeds this "
+"value."
+msgstr ""
+"トランザクションのバッファー制御用の high water マークです。使用中の総バッ"
+"ファー領域がこの値に達すると外部ソース I/O が停止されます。"
+
+#: ../../reference/configuration/records.config.en.rst:871
+msgid ""
+"The low water mark for transaction buffer control. External source I/O is "
+"resumed when the total buffer space in use by the transaction is no more "
+"than this value."
+msgstr ""
+"トランザクションのバッファー制御用の low water マークです。使用中の総バッ"
+"ファー領域がこの値より少なくなると外部ソース I/O が再開されます。"
+
+#: ../../reference/configuration/records.config.en.rst:875
+msgid "Negative Response Caching"
+msgstr "ネガティブレスポンスキャッシュ"
+
+#: ../../reference/configuration/records.config.en.rst:903
+msgid ""
+"The cache lifetime for objects cached from this setting is controlled via :"
+"ts:cv:`proxy.config.http.negative_caching_lifetime`."
+msgstr ""
+"この設定によりキャッシュされたオブジェクトのキャッシュライフタイムは :ts:cv:"
+"`proxy.config.http.negative_caching_lifetime` により制御されます。"
+
+#: ../../reference/configuration/records.config.en.rst:912
+msgid "Proxy User Variables"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:917
+msgid ""
+"When enabled (``1``), Traffic Server removes the ``From`` header to protect "
+"the privacy of your users."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:922
+msgid ""
+"When enabled (``1``), Traffic Server removes the ``Referrer`` header to "
+"protect the privacy of your site and users."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:927
+msgid ""
+"When enabled (``1``), Traffic Server removes the ``User-agent`` header to "
+"protect the privacy of your site and users."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:932
+msgid ""
+"When enabled (``1``), Traffic Server removes the ``Cookie`` header to "
+"protect the privacy of your site and users."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:937
+msgid ""
+"When enabled (``1``), Traffic Server removes ``Client-IP`` headers for more "
+"privacy."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:942
+msgid ""
+"When enabled (``1``), Traffic Server inserts ``Client-IP`` headers to "
+"retain the client IP address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:946
+msgid ""
+"When enabled (``1``), Traffic Server appends ``X-Forwards`` headers to "
+"outgoing requests."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:956
+msgid ""
+"When enabled (``1``), Traffic Server adds the client IP address to the ``X-"
+"Forwarded-For`` header."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:961
+msgid ""
+"Enable (``1``) to normalize all ``Accept-Encoding:`` headers to one of the "
+"following:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:963
+msgid ""
+"``Accept-Encoding: gzip`` (if the header has ``gzip`` or ``x-gzip`` with "
+"any ``q``) **OR**"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:964
+msgid "*blank* (for any header that does not include ``gzip``)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:966
+msgid ""
+"This is useful for minimizing cached alternates of documents (e.g. ``gzip, "
+"deflate`` vs. ``deflate, gzip``). Enabling this option is recommended if "
+"your origin servers use no encodings other than ``gzip``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:971
+msgid "Security"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:976
+msgid ""
+"Enables (``1``) or disables (``0``) the HTTP ``PUSH`` option, which allows "
+"you to deliver content directly to the cache without a user request."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:981
+msgid ""
+"If you enable this option, then you must also specify a filtering rule in "
+"the ip_allow.config file to allow only certain machines to push content "
+"into the cache."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:986
+msgid "Cache Control"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:991
+msgid ""
+"Enables (``1``) or disables (``0``) ability to a read cached object while "
+"the another connection is completing the write to cache for the same "
+"object. Several other configuration values need to be set for this to "
+"become active. See :ref:`reducing-origin-server-requests-avoiding-the-"
+"thundering-herd`"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:997
+msgid "Forces the use of a specific hardware sector size (512 - 8192 bytes)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1002
+msgid "Enables (``1``) or disables (``0``) caching of HTTP requests."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1007
+msgid ""
+"Enables (``1``) or disables (``0``) caching objects that have an empty "
+"response body. This is particularly useful for caching 301 or 302 responses "
+"with a ``Location`` header but no document body. This only works if the "
+"origin response also has a ``Content-Length`` header."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1015
+msgid ""
+"When enabled (``1``), Traffic Server ignores client requests to bypass the "
+"cache."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1020
+msgid ""
+"When enabled (``1``), Traffic Server issues a conditional request to the "
+"origin server if an incoming request has a ``No-Cache`` header."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1025
+msgid ""
+"When enabled (``1``), Traffic Server ignores origin server requests to "
+"bypass the cache."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1030
+msgid "Specifies how cookies are cached:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1032
+msgid "``0`` = do not cache any responses to cookies"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1033
+msgid "``1`` = cache for any content-type"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1034
+msgid "``2`` = cache only for image types"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1035
+msgid "``3`` = cache for all but text content-types"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1039
+msgid ""
+"When enabled (``1``), Traffic Server ignores ``WWW-Authentication`` headers "
+"in responses ``WWW-Authentication`` headers are removed and not cached."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1045
+msgid ""
+"Enables (``1``) or disables (``0``) caching of URLs that look dynamic, i."
+"e.: URLs that end in *``.asp``* or contain a question mark (*``?``*), a "
+"semicolon (*``;``*), or *``cgi``*. For a full list, please refer to "
+"`HttpTransact::url_looks_dynamic </link/to/doxygen>`_"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1052
+msgid ""
+"Enables (``1``) or disables (``0``) caching of alternate versions of HTTP "
+"objects that do not contain the ``Vary`` header."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1057
+msgid "Specifies when to revalidate content:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1059
+msgid "``0`` = use cache directives or heuristic (the default value)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1060
+msgid "``1`` = stale if heuristic"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1061
+msgid "``2`` = always stale (always revalidate)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1062
+msgid "``3`` = never stale"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1064
+msgid "``4`` = use cache directives or heuristic (0) unless the request"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1064
+msgid "has an ``If-Modified-Since`` header"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1066
+msgid ""
+"If the request contains the ``If-Modified-Since`` header, then Traffic "
+"Server always revalidates the cached content and uses the client's ``If-"
+"Modified-Since`` header for the proxy request."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1073
+msgid ""
+"Specifies when to add ``no-cache`` directives to Microsoft Internet "
+"Explorer requests. You can specify the following:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1075
+msgid "``0`` = ``no-cache`` is *not* added to MSIE requests"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1076
+msgid "``1`` = ``no-cache`` is added to IMS MSIE requests"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1077
+msgid "``2`` = ``no-cache`` is added to all MSIE requests"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1082
+msgid ""
+"The type of headers required in a request for the request to be cacheable."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1084
+msgid "``0`` = no headers required to make document cacheable"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1085
+msgid ""
+"``1`` = either the ``Last-Modified`` header, or an explicit lifetime "
+"header, ``Expires`` or ``Cache-Control: max-age``, is required"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1086
+msgid ""
+"``2`` = explicit lifetime is required, ``Expires`` or ``Cache-Control: max-"
+"age``"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1091
+msgid ""
+"The maximum age allowed for a stale response before it cannot be cached."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1095
+msgid ""
+"When enabled (``1``), Traffic Server looks up range requests in the cache."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1100
+msgid ""
+"When enabled with a value of ``1``, Traffic Server serves documents from "
+"cache with a ``Content-Type:`` header even if it does not match the "
+"``Accept:`` header of the request. If set to ``2``, this logic only happens "
+"in the absence of a ``Vary`` header in the cached response (which is the "
+"recommended and safe use)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1106
+msgid ""
+"This option should only be enabled with ``1`` if you're having problems "
+"with caching *and* you origin server doesn't set the ``Vary`` header. "
+"Alternatively, if the origin is incorrectly setting ``Vary: Accept`` or "
+"doesn't respond with ``406 (Not Acceptable)``, you can also enable this "
+"configuration with a ``1``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1116
+msgid ""
+"When enabled with a value of ``1``, Traffic Server serves documents from "
+"cache with a ``Content-Language:`` header even if it does not match the "
+"``Accept-Language:`` header of the request. If set to ``2``, this logic "
+"only happens in the absence of a ``Vary`` header in the cached response "
+"(which is the recommended and safe use)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1123
+msgid ""
+"This option should only be enabled with ``1`` if you're having problems "
+"with caching *and* you origin server doesn't set the ``Vary`` header. "
+"Alternatively, if the origin is incorrectly setting ``Vary: Accept-"
+"Language`` or doesn't respond with ``406 (Not Acceptable)``, you can also "
+"enable this configuration with a ``1``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1133
+msgid ""
+"When enabled with a value of ``1``, Traffic Server serves documents from "
+"cache with a ``Content-Encoding:`` header even if it does not match the "
+"``Accept-Encoding:`` header of the request. If set to ``2``, this logic "
+"only happens in the absence of a ``Vary`` header in the cached response "
+"(which is the recommended and safe use)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1140
+msgid ""
+"This option should only be enabled with ``1`` if you're having problems "
+"with caching *and* you origin server doesn't set the ``Vary`` header. "
+"Alternatively, if the origin is incorrectly setting ``Vary: Accept-"
+"Encoding`` or doesn't respond with ``406 (Not Acceptable)`` you can also "
+"enable this configuration with a ``1``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1150
+msgid ""
+"When enabled with a value of ``1``, Traffic Server serves documents from "
+"cache with a ``Content-Type:`` header even if it does not match the "
+"``Accept-Charset:`` header of the request. If set to ``2``, this logic only "
+"happens in the absence of a ``Vary`` header in the cached response (which "
+"is the recommended and safe use)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1157
+msgid ""
+"This option should only be enabled with ``1`` if you're having problems "
+"with caching *and* you origin server doesn't set the ``Vary`` header. "
+"Alternatively, if the origin is incorrectly setting ``Vary: Accept-"
+"Charset`` or doesn't respond with ``406 (Not Acceptable)``, you can also "
+"enable this configuration with a ``1``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1167
+msgid ""
+"When enabled (``1``), Traffic Server ignores any ``Cache-Control: max-age`` "
+"headers from the client. This technically violates the HTTP RFC, but avoids "
+"a problem where a client can forcefully invalidate a cached object."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1173
+msgid ""
+"Specifies the maximum object size that will be cached. ``0`` is unlimited."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1178
+msgid ""
+"When enabled (``1``), Traffic Server will keep certain HTTP objects in the "
+"cache for a certain time as specified in cache.config."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1182
+msgid ""
+"The size of the region (as a percentage of the total content storage in a :"
+"term:`cache stripe`) in front of the :term:`write cursor` that constitutes "
+"a recent access hit for evacutating the accessed object."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1185
+msgid ""
+"When an object is accessed it can be marked for evacuation, that is to be "
+"copied over the write cursor and thereby preserved from being overwritten. "
+"This is done if it is no more than a specific number of bytes in front of "
+"the write cursor. The number of bytes is a percentage of the total number "
+"of bytes of content storage in the cache stripe where the object is stored "
+"and that percentage is set by this variable."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1193
+msgid "Limit the size of objects that are hit evacuated."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1195
+msgid ""
+"Objects larger than the limit are not hit evacuated. A value of 0 disables "
+"the limit."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1211
+msgid "RAM Cache"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1215
+msgid ""
+"By default the RAM cache size is automatically determined, based on disk "
+"cache size; approximately 10 MB of RAM cache per GB of disk cache. "
+"Alternatively, it can be set to a fixed value such as **20GB** (21474836480)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1222
+msgid ""
+"Two distinct RAM caches are supported, the default (0) being the **CLFUS** "
+"(*Clocked Least Frequently Used by Size*). As an alternative, a simpler "
+"**LRU** (*Least Recently Used*) cache is also available, by changing this "
+"configuration to 1."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1229
+msgid ""
+"Enabling this option will filter inserts into the RAM cache to ensure that "
+"they have been seen at least once.  For the **LRU**, this provides scan "
+"resistance. Note that **CLFUS** already requires that a document have "
+"history before it is inserted, so for **CLFUS**, setting this option means "
+"that a document must be seen three times before it is added to the RAM "
+"cache."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1237
+msgid ""
+"The **CLFUS** RAM cache also supports an optional in-memory compression. "
+"This is not to be confused with ``Content-Encoding: gzip`` compression. The "
+"RAM cache compression is intended to try to save space in the RAM, and is "
+"not visible to the User-Agent (client)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1242
+msgid "Possible values are:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1244
+msgid "``0`` = no compression"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1245
+msgid "``1`` = fastlz (extremely fast, relatively low compression)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1246
+msgid "``2`` = libz (moderate speed, reasonable compression)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1247
+msgid "``3`` = liblzma (very slow, high compression)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1251
+msgid ""
+"Compression runs on task threads.  To use more cores for RAM cache "
+"compression, increase :ts:cv:`proxy.config.task_threads`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1255
+msgid "Heuristic Expiration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1260
+msgid ""
+"The minimum amount of time an HTTP object without an expiration date can "
+"remain fresh in the cache before is considered to be stale."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1266
+msgid ""
+"The maximum amount of time an HTTP object without an expiration date can "
+"remain fresh in the cache before is considered to be stale."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1272
+msgid ""
+"The aging factor for freshness computations. Traffic Server stores an "
+"object for this percentage of the time that elapsed since it last changed."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1278
+msgid ""
+"How often Traffic Server checks for an early refresh, during the period "
+"before the document stale time. The interval specified must be in seconds. "
+"See :ref:`fuzzy-revalidation`"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1284
+msgid ""
+"The probability that a refresh is made on a document during the specified "
+"fuzz time."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1289
+msgid ""
+"Handles requests with a TTL less than fuzz.time – it allows for different "
+"times to evaluate the probability of revalidation for small TTLs and big "
+"TTLs. Objects with small TTLs will start \"rolling the revalidation dice\" "
+"near the fuzz.min_time, while objects with large TTLs would start at fuzz."
+"time. A logarithmic like function between determines the revalidation "
+"evaluation start time (which will be between fuzz.min_time and fuzz.time). "
+"As the object gets closer to expiring, the window start becomes more "
+"likely. By default this setting is not enabled, but should be enabled "
+"anytime you have objects with small TTLs. The default value is ``0``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1292
+msgid "Dynamic Content & Content Negotiation"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1297
+msgid "The header on which Traffic Server varies for text documents."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1299
+msgid ""
+"For example: if you specify ``User-agent``, then Traffic Server caches all "
+"the different user-agent versions of documents it encounters."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1305
+msgid "The header on which Traffic Server varies for images."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1310
+msgid ""
+"The header on which Traffic Server varies for anything other than text and "
+"images."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1313
+msgid "Customizable User Response Pages"
+msgstr "カスタマイズ可能なユーザーレスポンスページ"
+
+#: ../../reference/configuration/records.config.en.rst:1320
+msgid ""
+"``1`` = enable customizable user response pages in the default directory "
+"only"
+msgstr ""
+"``1`` = カスタマイズ可能なユーザーレスポンスページをデフォルトディレクトリで"
+"有効化します。"
+
+#: ../../reference/configuration/records.config.en.rst:1321
+msgid "``2`` = enable language-targeted user response pages"
+msgstr "``2`` = 言語別ユーザーレスポンスページを有効化します。"
+
+#: ../../reference/configuration/records.config.en.rst:1325
+msgid ""
+"Enables (``1``) or disables (``0``) logging for customizable response "
+"pages. When enabled, Traffic Server records a message in the error log each "
+"time a customized response page is used or modified."
+msgstr ""
+"カスタマイズ可能なレスポンスページのロギングを有効化 (``1``) もしくは無効化 "
+"(``0``) します。有効化すると、Traffic Server はカスタマイズ可能なレスポンス"
+"ページの使用もしくは変更のたびにメッセージをエラーログに記録します。"
+
+#: ../../reference/configuration/records.config.en.rst:1336
+msgid "Specifies when Traffic Server suppresses generated response pages:"
+msgstr ""
+"Traffic Server が生成されたレスポンスページを使用するのを抑制させるときに指"
+"定します。"
+
+#: ../../reference/configuration/records.config.en.rst:1338
+msgid "``0`` = never suppress generated response pages"
+msgstr "``0`` = 生成されたレスポンスページの使用を抑制しません"
+
+#: ../../reference/configuration/records.config.en.rst:1339
+msgid "``1`` = always suppress generated response pages"
+msgstr "``1`` = 生成されたレスポンスページの使用を常に抑制します"
+
+#: ../../reference/configuration/records.config.en.rst:1340
+msgid "``2`` = suppress response pages only for intercepted traffic"
+msgstr "``2`` = 遮断された通信のレスポンスページのみを抑制します"
+
+#: ../../reference/configuration/records.config.en.rst:1344
+msgid "Enable the user interface page."
+msgstr "ユーザーインターフェースページを有効化します。"
+
+#: ../../reference/configuration/records.config.en.rst:1347
+msgid "DNS"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1352
+msgid "Enables (``1``) or disables (``0``) local domain expansion."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1354
+msgid ""
+"Traffic Server can attempt to resolve unqualified hostnames by expanding to "
+"the local domain. For example if a client makes a request to an unqualified "
+"host (``host_x``) and the Traffic Server local domain is ``y.com`` , then "
+"Traffic Server will expand the hostname to ``host_x.y.com``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1363
+msgid ""
+"Enables (``1``) or disables (``0``) DNS server selection. When enabled, "
+"Traffic Server refers to the :file:`splitdns.config` file for the selection "
+"specification. Refer to :ref:`Configuring DNS Server Selection (Split DNS) "
+"<configuring-dns-server-selection-split-dns>`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1368
+msgid ""
+"Specifies a list of hostname extensions that are automatically added to the "
+"hostname after a failed lookup. For example: if you want Traffic Server to "
+"add the hostname extension .org, then specify ``org`` as the value for this "
+"variable (Traffic Server automatically adds the dot (.))."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1374
+msgid ""
+"If the variable :ts:cv:`proxy.config.http.enable_url_expandomatic` is set "
+"to ``1`` (the default value), then you do not have to add *``www.``* and "
+"*``.com``* to this list because Traffic Server automatically tries www. "
+"and .com after trying the values you've specified."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1380
+msgid ""
+"Allows to specify which ``resolv.conf`` file to use for finding resolvers. "
+"While the format of this file must be the same as the standard ``resolv."
+"conf`` file, this option allows an administrator to manage the set of "
+"resolvers in an external configuration file, without affecting how the rest "
+"of the operating system uses DNS."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1387
+msgid "Enables (``1``) or disables (``0``) DNS server round-robin."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1392
+msgid "The DNS servers."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1397
+msgid "Indicates whether to use SRV records for orgin server lookup."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1401
+msgid ""
+"Create and dedicate a thread entirely for DNS processing. This is probably "
+"most useful on system which do a significant number of DNS lookups, "
+"typically forward proxies. But even on other systems, it can avoid some "
+"contention on the first worker thread (which otherwise takes on the burden "
+"of all DNS lookups)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1414
+msgid "HostDB"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1419
+msgid ""
+"The number of seconds for which to use a stale NS record while initiating a "
+"background fetch for the new data."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1422
+msgid "If not set then stale records are not served."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1427
+msgid ""
+"The amount of space (in bytes) used to store ``hostdb``. The value of this "
+"variable must be increased if you increase the size of the `proxy.config."
+"hostdb.size`_ variable."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1433
+msgid "The maximum number of entries that can be stored in the database."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1437
+msgid ""
+"For values above ``200000``, you must increase :ts:cv:`proxy.config.hostdb."
+"storage_size` by at least 44 bytes per entry."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1442
+msgid ""
+"A host entry will eventually time out and be discarded. This variable "
+"controls how that time is calculated. A DNS request will return a TTL value "
+"and an internal value can be set with :ts:cv:`proxy.config.hostdb.timeout`. "
+"This variable determines which value will be used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1447
+msgid "TTL"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1449
+msgid "The TTL from the DNS response."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1450
+msgid "The internal timeout value."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1451
+msgid ""
+"The smaller of the DNS and internal TTL values. The internal timeout value "
+"becomes a maximum TTL."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1452
+msgid ""
+"The larger of the DNS and internal TTL values. The internal timeout value "
+"become a minimum TTL."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1459
+msgid "Internal time to live value for host DB entries, **in minutes**."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1461
+msgid "See :ts:cv:`proxy.config.hostdb.ttl_mode` for when this value is used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1466
+msgid "Set host resolution to use strict round robin."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1468
+msgid ""
+"When this and :ts:cv:`proxy.config.hostdb.timed_round_robin` are both "
+"disabled (set to ``0``), Traffic Server always uses the same origin server "
+"for the same client, for as long as the origin server is available. "
+"Otherwise if this is set then IP address is rotated on every request. This "
+"setting takes precedence over :ts:cv:`proxy.config.hostdb."
+"timed_round_robin`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1476
+msgid "Set host resolution to use timed round robin."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1478
+msgid ""
+"When this and :ts:cv:`proxy.config.hostdb.strict_round_robin` are both "
+"disabled (set to ``0``), Traffic Server always uses the same origin server "
+"for the same client, for as long as the origin server is available. "
+"Otherwise if this is set to :arg:`N` the IP address is rotated if more "
+"than :arg:`N` seconds have past since the first time the current address "
+"was used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1485
+msgid "Set the host resolution style."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1487
+msgid ""
+"This is an ordered list of keywords separated by semicolons that specify "
+"how a host name is to be resolved to an IP address. The keywords are case "
+"insensitive."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1491
+msgid "Keyword"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1491
+msgid "Meaning"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1493
+msgid "Resolve to an IPv4 address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1494
+msgid "Resolve to an IPv6 address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1495
+msgid "client"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1495
+msgid "Resolve to the same family as the client IP address."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1496
+msgid "none"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1496
+msgid "Stop resolving."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1499
+msgid ""
+"The order of the keywords is critical. When a host name needs to be "
+"resolved it is resolved in same order as the keywords. If a resolution "
+"fails, the next option in the list is tried. The keyword ``none`` means to "
+"give up resolution entirely. The keyword list has a maximum length of three "
+"keywords, more are never needed. By default there is an implicit ``ipv4;"
+"ipv6`` attached to the end of the string unless the keyword ``none`` "
+"appears."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1506
+msgid "Use the incoming client family, then try IPv4 and IPv6. ::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1510
+msgid ""
+"Because of the implicit resolution this can also be expressed as just ::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1516
+msgid "Resolve only to IPv4. ::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1522
+msgid ""
+"Resolve only to the same family as the client (do not permit cross family "
+"transactions). ::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1526
+msgid ""
+"This value is a global default that can be overridden by :ts:cv:`proxy."
+"config.http.server_ports`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1530
+msgid ""
+"This style is used as a convenience for the administrator. During a "
+"resolution the *resolution order* will be one family, then possibly the "
+"other. This is determined by changing ``client`` to ``ipv4`` or ``ipv6`` "
+"based on the client IP address and then removing duplicates."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1536
+msgid ""
+"This option has no effect on outbound transparent connections The local IP "
+"address used in the connection to the origin server is determined by the "
+"client, which forces the IP address family of the address used for the "
+"origin server. In effect, outbound transparent connections always use a "
+"resolution style of \"``client``\"."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1541
+msgid "Logging Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1546
+msgid "Enables and disables event logging:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1548
+msgid "``0`` = logging disabled"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1549
+msgid "``1`` = log errors only"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1550
+msgid "``2`` = log transactions only"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1551
+msgid "``3`` = full logging (errors + transactions)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1553
+msgid "Refer to :ref:`working-with-log-files`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1558
+msgid ""
+"The maximum amount of time before data in the buffer is flushed to disk."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1564
+msgid "The amount of space allocated to the logging directory (in MB)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1568
+msgid ""
+"All files in the logging directory contribute to the space used, even if "
+"they are not log files. In collation client mode, if there is no local disk "
+"logging, or :ts:cv:`proxy.config.log.max_space_mb_for_orphan_logs` is set "
+"to a higher value than :ts:cv:`proxy.config.log.max_space_mb_for_logs`, TS "
+"will take :ts:cv:`proxy.config.log.max_space_mb_for_orphan_logs` for "
+"maximum allowed log space."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1577
+msgid ""
+"The amount of space allocated to the logging directory (in MB) if this node "
+"is acting as a collation client."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1581
+msgid ""
+"When max_space_mb_for_orphan_logs is take as the maximum allowed log space "
+"in the logging system, the same rule apply to proxy.config.log."
+"max_space_mb_for_logs also apply to proxy.config.log."
+"max_space_mb_for_orphan_logs, ie: All files in the logging directory "
+"contribute to the space used, even if they are not log files. you may need "
+"to consider this when you enable full remote logging, and bump to the same "
+"size as proxy.config.log.max_space_mb_for_logs."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1590
+msgid ""
+"The tolerance for the log space limit (in megabytes). If the variable :ts:"
+"cv:`proxy.config.log.auto_delete_rolled_files` is set to ``1`` (enabled), "
+"then autodeletion of log files is triggered when the amount of free space "
+"available in the logging directory is less than the value specified here."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1597
+msgid "The hostname of the machine running Traffic Server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1606
+msgid "The directory you specify must already exist."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1611
+msgid ""
+"The log file permissions. The standard UNIX file permissions are used "
+"(owner, group, other). Permissible values are:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1613
+msgid ""
+"``-`` no permission ``r`` read permission ``w`` write permission ``x`` "
+"execute permission"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1615
+msgid ""
+"Permissions are subject to the umask settings for the Traffic Server "
+"process. This means that a umask setting of\\ ``002`` will not allow write "
+"permission for others, even if specified in the configuration file. "
+"Permissions for existing log files are not changed when the configuration "
+"is changed."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1622
+msgid "Enables (``1``) or disables (``0``) custom logging."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1627
+msgid ""
+"Enables (``1``) or disables (``0``) the `squid log file format <../working-"
+"log-files/log-formats#SquidFormat>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1632
+msgid "The squid log file type:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1634
+#: ../../reference/configuration/records.config.en.rst:1656
+#: ../../reference/configuration/records.config.en.rst:1678
+#: ../../reference/configuration/records.config.en.rst:1704
+msgid "``1`` = ASCII"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1635
+#: ../../reference/configuration/records.config.en.rst:1657
+#: ../../reference/configuration/records.config.en.rst:1679
+#: ../../reference/configuration/records.config.en.rst:1705
+msgid "``0`` = binary"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1640
+msgid ""
+"The `squid log <../working-log-files/log-formats#SquidFormat>`_ filename."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1644
+msgid ""
+"The `squid log <../working-log-files/log-formats#SquidFormat>`_ file header "
+"text."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1649
+msgid ""
+"Enables (``1``) or disables (``0``) the `Netscape common log file format "
+"<../working-log-files/log-formats#NetscapeFormats>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1654
+msgid ""
+"The `Netscape common log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ file type:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1662
+msgid ""
+"The `Netscape common log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ filename."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1667
+msgid ""
+"The `Netscape common log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ file header text."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1672
+msgid ""
+"Enables (``1``) or disables (``0``) the `Netscape extended log file format "
+"<../working-log-files/log-formats#NetscapeFormats>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1676
+msgid ""
+"The `Netscape extended log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ file type:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1683
+msgid ""
+"The `Netscape extended log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ filename."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1688
+msgid ""
+"The `Netscape extended log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ file header text."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1692
+msgid "Set whether the extend log is written as ASCII (text) or binary."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1697
+msgid ""
+"Enables (``1``) or disables (``0``) the `Netscape Extended-2 log file "
+"format <../working-log-files/log-formats#NetscapeFormats>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1702
+msgid ""
+"The `Netscape Extended-2 log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ file type:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1710
+msgid ""
+"The `Netscape Extended-2 log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ filename."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1715
+msgid ""
+"The `Netscape Extended-2 log <../working-log-files/log-"
+"formats#NetscapeFormats>`_ file header text."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1720
+msgid ""
+"When enabled (``1``), configures Traffic Server to store ICP transactions "
+"in a separate log file."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1722
+msgid ""
+"``0`` = separation is disabled, all ICP transactions are recorded in the "
+"same file as HTTP transactions"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1723
+msgid "``1`` = all ICP transactions are recorded in a separate log file."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1724
+msgid ""
+"``-1`` = filter all ICP transactions from the default log files; ICP "
+"transactions are not logged anywhere."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1729
+msgid ""
+"When enabled (``1``), configures Traffic Server to create a separate log "
+"file for HTTP transactions for each origin server listed in the :file:"
+"`log_hosts.config` file. Refer to `HTTP Host Log Splitting <../working-log-"
+"files#HTTPHostLogSplitting>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1735
+msgid "Set the log collation mode."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1740
+msgid "collation is disabled"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1741
+msgid "this host is a log collation server"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1742
+msgid ""
+"this host is a collation client and sends entries using standard formats to "
+"the collation server"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1743
+msgid ""
+"this host is a collation client and sends entries using the traditional "
+"custom formats to the collation server"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1744
+msgid "4"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1744
+msgid ""
+"this host is a collation client and sends entries that use both the "
+"standard and traditional custom formats to the collation server"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1747
+msgid ""
+"For information on sending XML-based custom formats to the collation "
+"server, refer to `logs_xml.config <logs_xml.config>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1750
+msgid ""
+"Although Traffic Server supports traditional custom logging, you should use "
+"the more versatile XML-based custom formats."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1754
+msgid "The hostname of the log collation server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1759
+msgid ""
+"The port used for communication between the collation server and client."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1764
+msgid ""
+"The password used to validate logging data and prevent the exchange of "
+"unauthorized information when a collation server is being used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1769
+msgid ""
+"When enabled (``1``), configures Traffic Server to include the hostname of "
+"the collation client that generated the log entry in each entry."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1774
+msgid "The number of seconds between collation server connection retries."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1779
+msgid ""
+"Specifies how log files are rolled. You can specify the following values:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1781
+msgid "``0`` = disables log file rolling"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1782
+msgid ""
+"``1`` = enables log file rolling at specific intervals during the day "
+"(specified with the"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1783
+msgid ""
+"`proxy.config.log.rolling_interval_sec`_ and `proxy.config.log."
+"rolling_offset_hr`_ variables)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1784
+msgid ""
+"``2`` = enables log file rolling when log files reach a specific size "
+"(specified with the `proxy.config.log.rolling_size_mb`_ variable)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1785
+msgid ""
+"``3`` = enables log file rolling at specific intervals during the day or "
+"when log files reach a specific size (whichever occurs first)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1786
+msgid ""
+"``4`` = enables log file rolling at specific intervals during the day when "
+"log files reach a specific size (i.e., at a specified"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1787
+msgid "time if the file is of the specified size)"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1792
+msgid ""
+"The log file rolling interval, in seconds. The minimum value is ``60`` (1 "
+"minute). The maximum, and default, value is 86400 seconds (one day)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1794
+msgid ""
+"If you start Traffic Server within a few minutes of the next rolling time, "
+"then rolling might not occur until the next rolling time."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1799
+msgid ""
+"The file rolling offset hour. The hour of the day that starts the log "
+"rolling period."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1804
+msgid "The size that log files must reach before rolling takes place."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1809
+msgid ""
+"Enables (``1``) or disables (``0``) automatic deletion of rolled files."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1814
+msgid ""
+"Configures Traffic Server to log only a sample of transactions rather than "
+"every transaction. You can specify the following values:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1816
+msgid "``1`` = log every transaction"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1817
+msgid "``2`` = log every second transaction"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1818
+msgid "``3`` = log every third transaction and so on..."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1824
+msgid ""
+"If set to a non-zero value :arg:`N` then any connection that takes longer "
+"than :arg:`N` milliseconds from accept to completion will cause its timing "
+"stats to be written to the :ts:cv:`debugging log file <proxy.config.output."
+"logfile>`. This is identifying data about the transaction and all of the :c:"
+"type:`transaction milestones <TSMilestonesType>`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1829
+msgid "Diagnostic Logging Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1885
+msgid "Reverse Proxy"
+msgstr "リバースプロキシー"
+
+#: ../../reference/configuration/records.config.en.rst:1890
+msgid "Enables (``1``) or disables (``0``) HTTP reverse proxy."
+msgstr ""
+"HTTP リバースプロキシーを有効化 (``1``) もしくは無効化 (``0``) します。"
+
+#: ../../reference/configuration/records.config.en.rst:1895
+msgid ""
+"The URL to which to redirect requests with no host headers (reverse proxy)."
+msgstr ""
+"(リバースプロキシーで) host ヘッダーが無いリクエストのリダイレクト先となる "
+"URL です。"
+
+#: ../../reference/configuration/records.config.en.rst:1899
+msgid "URL Remap Rules"
+msgstr "URL リマップルール"
+
+#: ../../reference/configuration/records.config.en.rst:1903
+msgid "Sets the name of the :file:`remap.config` file."
+msgstr ":file:`remap.config` ファイルの名前を設定します。"
+
+#: ../../reference/configuration/records.config.en.rst:1908
+msgid ""
+"Enables (``1``) or disables (``0``) requests for a PAC file on the proxy "
+"service port (8080 by default) to be redirected to the PAC port. For this "
+"type of redirection to work, the variable `proxy.config.reverse_proxy."
+"enabled`_ must be set to ``1``."
+msgstr ""
+"プロキシーサービスポート ( デフォルトでは 8080) での PAC ファイルへのリクエ"
+"ストの PAC ポートへのリダイレクトを有効化 (``1``) もしくは無効化 (``0``) し"
+"ます。このタイプのリダイレクトを動作させるためには、変数 `proxy.config."
+"reverse_proxy.enabled`_ を ``1`` に設定しなければなりません。"
+
+#: ../../reference/configuration/records.config.en.rst:1914
+msgid ""
+"Sets the PAC port so that PAC requests made to the Traffic Server proxy "
+"service port are redirected this port. ``-1`` is the default setting that "
+"sets the PAC port to the autoconfiguration port (the default "
+"autoconfiguration port is 8083). This variable can be used together with "
+"the `proxy.config.url_remap.default_to_server_pac`_ variable to get a PAC "
+"file from a different port. You must create and run a process that serves a "
+"PAC file on this port. For example: if you create a Perl script that "
+"listens on port 9000 and writes a PAC file in response to any request, then "
+"you can set this variable to ``9000``. Browsers that request the PAC file "
+"from a proxy server on port 8080 will get the PAC file served by the Perl "
+"script."
+msgstr ""
+"PAC ポートを Traffic Server プロキシーサービスポートへの PAC リクエストがこ"
+"のポートにリダイレクトされるように PAC ポートを設定します。PAC ポートを自動"
+"設定ポート ( 自動設定ポートのデフォルト値は 8083 です ) にする ``-1`` がデ"
+"フォルト値です。この変数は PAC ファイルを違うポートから取得するために "
+"`proxy.config.url_remap.default_to_server_pac`_ 変数と一緒に使用することがで"
+"きます。PAC ファイルをこのポートで提供するプロセスを作成し実行しなければなり"
+"ません。例えば、ポート 9000 で listen する Perl スクリプトを作成してあらゆる"
+"リクエストへのレスポンスに PAC ファイルを書き込む場合、この変数を ``9000`` "
+"に設定することができます。ポート 8080 のプロキシーサーバーに PAC ファイルを"
+"リクエストするブラウザーはその Perl スクリプトから提供される PAC ファイルを"
+"受け取るでしょう。"
+
+#: ../../reference/configuration/records.config.en.rst:1929
+msgid ""
+"Set this variable to ``1`` if you want Traffic Server to serve requests "
+"only from origin servers listed in the mapping rules of the :file:`remap."
+"config` file. If a request does not match, then the browser will receive an "
+"error."
+msgstr ""
+"Traffic Server が :file:`remap.config` ファイルのマッピングルールに存在する"
+"オリジンサーバーからのみリクエストに応えるようにしたい場合にこの変数を "
+"``1`` に設定してください。リクエストがマッチしなかった場合、ブラウザーはエ"
+"ラーを受け取ります。"
+
+#: ../../reference/configuration/records.config.en.rst:1937
+msgid ""
+"Set this variable to ``1`` if you want to retain the client host header in "
+"a request during remapping."
+msgstr ""
+"クライアントが送信したリクエスト内の host ヘッダーをリマッピングの中で保持し"
+"たい場合にこの変数を ``1`` に設定してください。"
+
+#: ../../reference/configuration/records.config.en.rst:1943
+msgid "SSL Termination"
+msgstr "SSL ターミネーション"
+
+#: ../../reference/configuration/records.config.en.rst:1947
+msgid "Enables (``1``) or disables (``0``) SSLv2. Please don't enable it."
+msgstr ""
+"SSLv2 を有効化 (``1``) もしくは無効化 (``0``) します。これを有効化しないでく"
+"ださい。"
+
+#: ../../reference/configuration/records.config.en.rst:1951
+msgid "Enables (``1``) or disables (``0``) SSLv3."
+msgstr "SSLv3 を有効化 (``1``) もしくは無効化 (``0``) します。"
+
+#: ../../reference/configuration/records.config.en.rst:1955
+msgid "Enables (``1``) or disables (``0``) TLSv1."
+msgstr "TLSv1 を有効化 (``1``) もしくは無効化 (``0``) します。"
+
+#: ../../reference/configuration/records.config.en.rst:1967
+msgid "Sets the client certification level:"
+msgstr "クライアント証明レベルを設定します。"
+
+#: ../../reference/configuration/records.config.en.rst:1972
+msgid "``0`` = no client certificates are required. Traffic Server does"
+msgstr "``0`` = クライアント証明書を必要としません。"
+
+#: ../../reference/configuration/records.config.en.rst:1970
+msgid ""
+"not verify client certificates during the SSL handshake. Access to Traffic "
+"Server depends on Traffic Server configuration options (such as access "
+"control lists)."
+msgstr ""
+"Traffic Server は SSL ハンドシェイクの中でクライアント証明書の検証を行いませ"
+"ん。Traffic Server へのアクセスは Traffic Server の ( アクセスコントロールリ"
+"ストなどの ) 設定オプションに依存します。"
+
+#: ../../reference/configuration/records.config.en.rst:1978
+msgid "``1`` = client certificates are optional. If a client has a"
+msgstr "``1`` = クライアント証明書は任意です。"
+
+#: ../../reference/configuration/records.config.en.rst:1975
+msgid ""
+"certificate, then the certificate is validated. If the client does not have "
+"a certificate, then the client is still allowed access to Traffic Server "
+"unless access is denied through other Traffic Server configuration options."
+msgstr ""
+"クライアントが証明書を持っている場合は証明書が検証されます。クライアントが証"
+"明書を持っていない場合でも、Traffic Server のその他の設定オプションでアクセ"
+"スが拒否されない限りクライアントは Traffic Server へのアクセスを許可されま"
+"す。"
+
+#: ../../reference/configuration/records.config.en.rst:1981
+msgid "``2`` = client certificates are required. The client must be"
+msgstr "``2`` = クライアント証明書が必要です。"
+
+#: ../../reference/configuration/records.config.en.rst:1981
+msgid ""
+"authenticated during the SSL handshake. Clients without a certificate are "
+"not allowed to access Traffic Server."
+msgstr ""
+"クライアントは SSL ハンドシェイクの中で認証されなければなりません。証明書を"
+"持たないクライアントは Traffic Server へのアクセスが許可されません。"
+
+#: ../../reference/configuration/records.config.en.rst:1986
+msgid ""
+"The location of the :file:`ssl_multicert.config` file, relative to the "
+"Traffic Server configuration directory. In the following example, if the "
+"Traffic Server configuration directory is `/etc/trafficserver`, the Traffic "
+"Server SSL configuration file and the corresponding certificates are "
+"located in `/etc/trafficserver/ssl`::"
+msgstr ""
+":file:`ssl_multicert.config` ファイルの Traffic Server 設定ディレクトリから"
+"の相対での位置です。次の例では、Traffic Server 設定ディレクトリが `/etc/"
+"trafficserver` で、Traffic Server SSL 設定ファイルと対応する証明書が `/etc/"
+"trafficserver/ssl` にあります。::"
+
+#: ../../reference/configuration/records.config.en.rst:1999
+msgid ""
+"The location of the SSL certificates and chains used for accepting and "
+"validation new SSL sessions. If this is a relative path, it is appended to "
+"the Traffic Server installation PREFIX. All certificates and certificate "
+"chains listed in :file:`ssl_multicert.config` will be loaded relative to "
+"this path."
+msgstr ""
+"SSL 証明書と新しい SSL セッションの受け入れと検証に使用されるチェーンの場所"
+"です。相対パスの場合は Traffic Server のインストール PREFIX とつなげられま"
+"す。:file:`ssl_multicert.config` に書かれているすべての証明書と証明書チェー"
+"ンはこのパスからの相対パスで読み込まれます。"
+
+#: ../../reference/configuration/records.config.en.rst:2007
+msgid ""
+"The location of the SSL certificate private keys. Change this variable only "
+"if the private key is not located in the SSL certificate file. All private "
+"keys listed in :file:`ssl_multicert.config` will be loaded relative to this "
+"path."
+msgstr ""
+"SSL 証明書秘密鍵の場所です。この変数は秘密鍵が SSL 証明書ファイル内に無い場"
+"合のみ変更してください。:file:`ssl_multicert.config` に書かれているすべての"
+"秘密鍵はこのパスからの相対パスで読み込まれます。"
+
+#: ../../reference/configuration/records.config.en.rst:2015
+msgid ""
+"The name of a file containing a global certificate chain that should be "
+"used with every server certificate. This file is only used if there are "
+"certificates defined in :file:`ssl_multicert.config`. Unless this is an "
+"absolute path, it is loaded relative to the path specified by :ts:cv:`proxy."
+"config.ssl.server.cert.path`."
+msgstr ""
+"全サーバー証明書で使用されるべきグローバル証明書チェーンを含んでいるファイル"
+"の名前です。このファイルは :file:`ssl_multicert.config` に定義されている証明"
+"書がある場合にのみ使用されます。絶対パスが指定されない限り、:ts:cv:`proxy."
+"config.ssl.server.cert.path` で指定されたパスからの相対パスで読み込まれま"
+"す。"
+
+#: ../../reference/configuration/records.config.en.rst:2023
+msgid ""
+"The location of the certificate authority file that client certificates "
+"will be verified against."
+msgstr "クライアント証明書が検証される証明書認証局ファイルの場所です。"
+
+#: ../../reference/configuration/records.config.en.rst:2028
+msgid ""
+"The filename of the certificate authority that client certificates will be "
+"verified against."
+msgstr "クライアント証明書が検証される証明書認証局のファイル名です。"
+
+#: ../../reference/configuration/records.config.en.rst:2033
+msgid "TBD"
+msgstr "TBD"
+
+#: ../../reference/configuration/records.config.en.rst:2078
+msgid "Client-Related Configuration"
+msgstr "クライアント関連の設定"
+
+#: ../../reference/configuration/records.config.en.rst:2082
+msgid ""
+"Configures Traffic Server to verify the origin server certificate with the "
+"Certificate Authority (CA)."
+msgstr ""
+"Traffic Server がオリジンサーバー証明書を証明書認証局 (CA) で検証するように"
+"設定します。"
+
+#: ../../reference/configuration/records.config.en.rst:2087
+msgid "The filename of SSL client certificate installed on Traffic Server."
+msgstr ""
+"Traffic Server にインストールされた SSL クライアント証明書のファイル名。"
+
+#: ../../reference/configuration/records.config.en.rst:2091
+msgid ""
+"The location of the SSL client certificate installed on Traffic Server."
+msgstr "Traffic Server にインストールされた SSL クライアント証明書の場所。"
+
+#: ../../reference/configuration/records.config.en.rst:2096
+msgid ""
+"The filename of the Traffic Server private key. Change this variable only "
+"if the private key is not located in the Traffic Server SSL client "
+"certificate file."
+msgstr ""
+"Traffic Server 秘密鍵のファイル名。この変数は秘密鍵が Traffic Server SSL ク"
+"ライアント証明書ファイル内に無い場合のみ変更してください。"
+
+#: ../../reference/configuration/records.config.en.rst:2102
+msgid ""
+"The location of the Traffic Server private key. Change this variable only "
+"if the private key is not located in the SSL client certificate file."
+msgstr ""
+"Traffic Server 秘密鍵の場所です。この変数は秘密鍵が SSL 証明書内に無い場合の"
+"み変更してください。"
+
+#: ../../reference/configuration/records.config.en.rst:2108
+msgid ""
+"The filename of the certificate authority against which the origin server "
+"will be verified."
+msgstr "検証されるオリジンサーバーに対する証明書認証局ファイルの名前です。"
+
+#: ../../reference/configuration/records.config.en.rst:2113
+msgid ""
+"Specifies the location of the certificate authority file against which the "
+"origin server will be verified."
+msgstr ""
+"検証されるオリジンサーバーに対する証明書認証局ファイルの場所を指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:2117
+msgid "ICP Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2121
+msgid "Sets ICP mode for hierarchical caching:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2123
+msgid "``0`` = disables ICP"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2124
+msgid "``1`` = allows Traffic Server to receive ICP queries only"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2125
+msgid "``2`` = allows Traffic Server to send and receive ICP queries"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2127
+msgid "Refer to `ICP Peering <../hierachical-caching#ICPPeering>`_."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2131
+msgid "Specifies the network interface used for ICP traffic."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2135
+msgid ""
+"The Traffic Server installation script detects your network interface and "
+"sets this variable appropriately. If your system has multiple network "
+"interfaces, check that this variable specifies the correct interface."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2143
+msgid "Specifies the UDP port that you want to use for ICP messages."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2148
+msgid "Specifies the timeout used for ICP queries."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2151
+msgid "Scheduled Update Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2155
+msgid "Enables (``1``) or disables (``0``) the Scheduled Update option."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2160
+msgid ""
+"Enables (``1``) or disables (``0``) a force immediate update. When enabled, "
+"Traffic Server overrides the scheduling expiration time for all scheduled "
+"update entries and initiates updates until this option is disabled."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2168
+msgid ""
+"Specifies the number of times Traffic Server can retry the scheduled update "
+"of a URL in the event of failure."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2174
+msgid ""
+"Specifies the delay (in seconds) between each scheduled update retry for a "
+"URL in the event of failure."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2180
+msgid ""
+"Specifies the maximum simultaneous update requests allowed at any time. "
+"This option prevents the scheduled update process from overburdening the "
+"host."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2185
+msgid "Plug-in Configuration"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2189
+msgid "Specifies the location of Traffic Server plugins."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2201
+msgid "Sockets"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2205
+msgid ""
+"default: ``1`` meaning ``on`` all Platforms except Linux: ``45`` seconds"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2207
+msgid ""
+"This directive enables operating system specific optimizations for a "
+"listening socket. ``defer_accept`` holds a call to ``accept(2)`` back until "
+"data has arrived. In Linux' special case this is up to a maximum of 45 "
+"seconds."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2212
+msgid ""
+"Sets the send buffer size for connections from the client to Traffic Server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2216
+msgid ""
+"Sets the receive buffer size for connections from the client to Traffic "
+"Server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2220
+msgid ""
+"Turns different options \"on\" for the socket handling client connections:::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2227
+#: ../../reference/configuration/records.config.en.rst:2249
+msgid ""
+"This is a flag and you look at the bits set. Therefore, you must set the "
+"value to ``3`` if you want to enable both options above."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2233
+msgid ""
+"Sets the send buffer size for connections from Traffic Server to the origin "
+"server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2237
+msgid ""
+"Sets the receive buffer size for connections from Traffic Server to the "
+"origin server."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2242
+msgid "Turns different options \"on\" for the origin server socket:::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2255
+msgid ""
+"Same as the command line option ``--accept_mss`` that sets the MSS for all "
+"incoming requests."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2286
+msgid "Undocumented"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2288
+msgid ""
+"These are referenced but not documented. Please contribute a definition."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:62
+msgid "``G`` Gigabytes (1024^3 or 1,073,741,824 bytes)"
+msgstr "``G`` ギガバイト (1024^3 または 1,073,741,824 バイト)"
+
+#: ../../reference/configuration/records.config.en.rst:207
+msgid ""
+"The directory in which Traffic Server stores configuration snapshots on the "
+"local system. Unless you specify an absolute path, this directory is "
+"located in the Traffic Server ``SYSCONFDIR`` directory."
+msgstr ""
+"Traffic Server が設定のスナップショットを保存するローカルシステム上のディレ"
+"クトリ。絶対パスを指定しない限り、このディレクトリは Traffic Server の "
+"``SYSCONFDIR`` ディレクトリに置かれます。"
+
+#: ../../reference/configuration/records.config.en.rst:235
+msgid "Bind threads to specific CPUs or CPU cores."
+msgstr "スレッドを特定の CPU または CPU コアに割り当てます。"
+
+#: ../../reference/configuration/records.config.en.rst:530
+#: ../../reference/configuration/records.config.en.rst:548
+msgid ""
+"The ``Via`` header string can be decoded with the `Via Decoder Ring <http://"
+"trafficserver.apache.org/tools/via>`_."
+msgstr ""
+"``Via`` ヘッダーは `Via Decoder Ring <http://trafficserver.apache.org/tools/"
+"via>`_ でデコードできます。"
+
+#: ../../reference/configuration/records.config.en.rst:662
+msgid "Enables (``1``) or disables (``0``) incoming keep-alive connections."
+msgstr ""
+"入ってくる接続の keep-alive を有効化 (``1``) または無効化 (``0``) します。"
+
+#: ../../reference/configuration/records.config.en.rst:666
+msgid "Enables (``1``) or disables (``0``) outgoing keep-alive connections."
+msgstr ""
+"出て行く接続の keep-alive を有効化 (``1``) または無効化 (``0``) します。"
+
+#: ../../reference/configuration/records.config.en.rst:669
+msgid ""
+"Enabling keep-alive does not automatically enable purging of keep-alive "
+"requests when nearing the connection limit, that is controlled by :ts:cv:"
+"`proxy.config.http.server_max_connections`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:675
+msgid ""
+"Controls wether new POST requests re-use keep-alive sessions (``1``) or "
+"create new connections per request (``0``)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:800
+msgid ""
+"This value is used in determining when and if to prune active origin "
+"sessions. Without this value set connections to origins can consume all the "
+"way up to ``proxy.config.net.connections_throttle`` connections, which in "
+"turn can starve incoming requests from available connections."
+msgstr ""
+"この値はアクティブなオリジンセッションをいつ取り除くかを決定するために使用さ"
+"れます。この値を設定しないとオリジンへの接続は ``proxy.config.net."
+"connections_throttle`` の接続数まで消費され、有効な接続から入ってくるリクエ"
+"ストを次々とタイムアウトさせます。"
+
+#: ../../reference/configuration/records.config.en.rst:847
+msgid ""
+"When enabled (1), Traffic Server bypasses the parent proxy for a request "
+"that is not cacheable."
+msgstr ""
+"有効化 (1) すると、Traffic Server はキャッシュできないリクエストで親プロキ"
+"シーをバイパスします。"
+
+#: ../../reference/configuration/records.config.en.rst:880
+msgid ""
+"When enabled (``1``), Traffic Server caches negative responses (such as "
+"``404 Not Found``) when a requested page does not exist. The next time a "
+"client requests the same page, Traffic Server serves the negative response "
+"directly from cache. When disabled (``0``) Traffic Server will only cache "
+"the response if the response has ``Cache-Control`` headers."
+msgstr ""
+"有効化 (``1``) された場合、Traffic Server はリクエストされたページが存在しな"
+"い場合にネガティブレスポンス ( ``404 Not Found`` のような ) をキャッシュしま"
+"す。次回クライアントが同じページをリクエストした際、Traffic Server はネガ"
+"ティブレスポンスをキャッシュから直接返します。無効化 (``0``) された場合、"
+"Traffic Server はレスポンスが ``Cache-Control`` ヘッダーをもって場合にのみ"
+"キャッシュを行います。"
+
+#: ../../reference/configuration/records.config.en.rst:886
+msgid ""
+"``Cache-Control`` directives from the server forbidding cache are ignored "
+"for the following HTTP response codes, regardless of the value specified "
+"for the :ts:cv:`proxy.config.http.negative_caching_enabled` variable."
+msgstr ""
+"次の HTTP レスポンスコードは :ts:cv:`proxy.config.http."
+"negative_caching_enabled` 変数に指定された値を無視して、キャッシュを禁止して"
+"いるサーバーからの ``Cache-Control`` ディレクティブは無視されます。"
+
+#: ../../reference/configuration/records.config.en.rst:889
+msgid "The following negative responses are cached by Traffic Server:::"
+msgstr "次のネガティブレスポンスは Traffic Server にキャッシュされます。"
+
+#: ../../reference/configuration/records.config.en.rst:908
+msgid ""
+"How long (in seconds) Traffic Server keeps the negative responses  valid in "
+"cache. This value only affects negative responses that do have explicit "
+"``Expires:`` or ``Cache-Control:`` lifetimes set by the server."
+msgstr ""
+"Traffic Server がネガティブレスポンスをキャッシュ内で有効とする時間 (秒) で"
+"す。この値はサーバーによって設定された明示的な ``Expires:`` もしくは "
+"``Cache-Control:`` の生存時間を持っているネガティブレスポンスのみに影響しま"
+"す。"
+
+#: ../../reference/configuration/records.config.en.rst:951
+msgid ""
+"Comma separated list of headers Traffic Server should remove from outgoing "
+"requests."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1199
+msgid ""
+"The maximum number of alternates that are allowed for any given URL. "
+"Disable by setting to 0. Note that this setting will not strictly enforce "
+"this if the variable ``proxy.config.cache.vary_on_user_agent`` is set to 1 "
+"(by default it is 0)."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1206
+msgid ""
+"Sets the target size of a contiguous fragment of a file in the disk cache. "
+"Accepts values that are powers of 2, e.g. 65536, 131072, 262144, 524288, "
+"1048576, 2097152, etc. When setting this, consider that larger numbers "
+"could waste memory on slow connections, but smaller numbers could increase "
+"(waste) seeks."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1317
+msgid ""
+"Specifies whether customizable response pages are language specific or not:"
+msgstr "カスタマイズ可能なレスポンスページが言語別どうかを指定します。"
+
+#: ../../reference/configuration/records.config.en.rst:1330
+msgid ""
+"The customizable response page default directory. If this is a relative "
+"path, Traffic Server resolves it relative to the ``PREFIX`` directory."
+msgstr ""
+"カスタマイズ可能なレスポンスページのデフォルトディレクトリ。相対パスの場合、"
+"Traffic Server は ``PREFIX`` ディレクトリからの相対で解決します。"
+
+#: ../../reference/configuration/records.config.en.rst:1409
+msgid ""
+"When enabled (1) provides additional resilience against DNS forgery (for "
+"instance in DNS Injection attacks), particularly in forward or transparent "
+"proxies, but requires that the resolver populates the queries section of "
+"the response properly."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1602
+msgid ""
+"The path to the logging directory. This can be an absolute path or a path "
+"relative to the ``PREFIX`` directory in which Traffic Server is installed."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1841
+msgid ""
+"The diagnosic output configuration variables control where Traffic Server "
+"should log diagnostic output. Messages at each diagnostic level can be "
+"directed to any combination of diagnostic destinations. Valid diagnostic "
+"message destinations are:"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1846
+msgid "'O' = Log to standard output"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1847
+msgid "'E' = Log to standard error"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1848
+msgid "'S' = Log to syslog"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1849
+msgid "'L' = Log to diags.log"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1853
+msgid "To log debug diagnostics to both syslog and `diags.log`::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1859
+msgid "Annotates diagnostic messages with the source code location."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1863
+msgid ""
+"Enables logging for diagnostic messages whose log level is `diag` or "
+"`debug`."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1867
+msgid ""
+"Each Traffic Server `diag` and `debug` level message is annotated with a "
+"subsytem tag. This configuration contains a regular expression that filters "
+"the messages based on the tag. Some commonly used debug tags are::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1873
+msgid "Tag"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1873
+msgid "Subsytem usage"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1875
+msgid "TLS termination and certificate processing"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1876
+msgid "dns"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1876
+msgid "DNS query resolution"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1877
+msgid "http_hdrs"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1877
+msgid "Logs the headers for HTTP requests and responses"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1959
+msgid ""
+"Enables (``1``) or disables (``0``) TLS v1.1.  If not specified, enabled by "
+"default.  [Requires OpenSSL v1.0.1 and higher]"
+msgstr ""
+"TLS v1.1 を有効化 (``1``) もしくは無効化 (``0``) します。指定しない場合、デ"
+"フォルトで有効です。[OpenSSL v1.0.1 以上が必要 ]"
+
+#: ../../reference/configuration/records.config.en.rst:1963
+msgid ""
+"Enables (``1``) or disables (``0``) TLS v1.2.  If not specified, DISABLED "
+"by default.  [Requires OpenSSL v1.0.1 and higher]"
+msgstr ""
+"TLS v1.2 を有効化 (``1``) もしくは無効化 (``0``) します。指定しない場合、デ"
+"フォルトで無効です。[OpenSSL v1.0.1 以上が必要 ]"
+
+#: ../../reference/configuration/records.config.en.rst:2037
+msgid ""
+"This configuration specifies the maximum number of bytes to write into a "
+"SSL record when replying over a SSL session. In some circumstances this "
+"setting can improve response latency by reducing buffering at the SSL "
+"layer. The default of ``0`` means to always write all available data into a "
+"single SSL record."
+msgstr ""
+"この設定は SSL セッションで応答する際に SSL レコードに書き込む最大バイト数を"
+"指定します。いくつかの状況でこの設定は SSL レイヤーでのバッファリングを低減"
+"することでレスポンスの遅延を改善します。デフォルトの ``0`` は常に有効なすべ"
+"てのデータを一つの SSL レコードに書き込みます。"
+
+#: ../../reference/configuration/records.config.en.rst:2045
+msgid ""
+"This configuration specifies the lifetime of SSL session cache entries in "
+"seconds. If it is ``0``, then the SSL library will use a default value, "
+"typically 300 seconds."
+msgstr ""
+"この設定は SSL セッションのキャッシュエントリーの生存時間を秒単位で指定しま"
+"す。``0`` の場合、SSL ライブラリはデフォルト値を使用し、これは一般的に 300 "
+"秒です。"
+
+#: ../../reference/configuration/records.config.en.rst:2193
+msgid ""
+"When this variable is set to ``0``, plugin remap callbacks are executed in "
+"line on network threads. If remap processing takes significant time, this "
+"can be cause additional request latency. Setting this variable to causes "
+"remap processing to take place on a dedicated thread pool, freeing the "
+"network threads to service additional requests."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2259
+msgid ""
+"Same as the command line option ``--poll_timeout``, or ``-t``, which "
+"specifies the timeout used for the polling mechanism used. This timeout is "
+"always in milliseconds (ms). This is the timeout to ``epoll_wait()`` on "
+"Linux platforms, and to ``kevent()`` on BSD type OSs. The default value is "
+"``10`` on all platforms."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2265
+msgid ""
+"Changing this configuration can reduce CPU usage on an idle system, since "
+"periodic tasks gets processed at these intervals. On busy servers, this "
+"overhead is diminished, since polled events triggers morefrequently. "
+"However, increasing the setting can also introduce additional latency for "
+"certain operations, and timed events. It's recommended not to touch this "
+"setting unless your CPU usage is unacceptable at idle workload. Some "
+"alternatives to this could be::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2277
+msgid "The relevant configurations for this are::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:171
+msgid ""
+"The directory that contains Traffic Server configuration files. This is a "
+"read-only configuration option that contains the ``SYSCONFDIR`` value "
+"specified at build time relative to the installation prefix. The ``"
+"$TS_ROOT`` environment variable can be used alter the installation prefix "
+"at run time."
+msgstr ""
+"Traffic Server の設定ファイルを含むディレクトリ。これはビルド時に指定され"
+"た ``SYSCONFDIR`` のインストールした場所のプレフィックスからの相対の値を"
+"含んだ読み取り専用の設定オプションです。``$TS_ROOT`` 環境変数はインストー"
+"ルした場所のプレフィックスを実行時に切り替えるために使うことができます。"
+
+#: ../../reference/configuration/records.config.en.rst:287
+msgid ""
+"Set the default local outbound IP address for IPv4 connections to "
+"``192.168.101.18``.::"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:436
+msgid ""
+"Inbound transparent. The proxy port will accept connections to any IP "
+"address on the port. To have IPv6 inbound transparent you must use this and "
+"the ``ipv6`` option. This overrides :ts:cv:`proxy.local."
+"incoming_ip_to_bind` for this port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:441
+msgid ""
+"Outbound transparent. If ATS connects to an origin server for a transaction "
+"on this port, it will use the client's address as its local address. This "
+"overrides :ts:cv:`proxy.local.outgoing_ip_to_bind` for this port."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:443
+msgid "Not compatible with: ``ip-out``, ``ip-resolve``"
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:454
+msgid ""
+"Set the local IP address for the port. This is the address to which clients "
+"will connect. This forces the IP address family for the port. The ``ipv4`` "
+"or ``ipv6`` can be used but it is optional and is an error for it to "
+"disagree with the IP address family of this value. An IPv6 address **must** "
+"be enclosed in square brackets. If this option is omitted :ts:cv:`proxy."
+"local.incoming_ip_to_bind` is used."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:473
+msgid "Not compatible with: ``tr-in``, ``blind``."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:1880
+msgid ""
+"Traffic Server plugins will typically log debug messages using the :c:func:"
+"`TSDebug` API, passing the plugin name as the debug tag."
+msgstr ""
+
+#: ../../reference/configuration/records.config.en.rst:2051
+msgid ""
+"This configuration specifies the max-age value that will be used when "
+"adding the Strict-Transport-Security header.  The value is in seconds. A "
+"value of ``0`` will set the max-age value to ``0`` and should remove the "
+"HSTS entry from the client.  A value of ``-1`` will disable this feature "
+"and not set the header.  This option is only used for HTTPS requests and "
+"the header will not be set on HTTP requests."
+msgstr ""
+"この設定は Strict-Transport-Security ヘッダーを追加する際に使用される "
+"max-age の値を指定します。値は秒です。``0`` は max-age の値を ``0`` に設定し"
+"クライアントからの HSTS エントリーを削除するはずです。``-1`` はこの機能を"
+"無効化しヘッダーをセットしません。このオプションは HTTPS のリクエストでのみ"
+"使用され HTTP リクエストではヘッダーはセットされません。"
+
+#: ../../reference/configuration/records.config.en.rst:2060
+msgid ""
+"Enables (``1``) or disables (``0``) adding the includeSubdomain value to "
+"the Strict-Transport-Security header.  proxy.config.ssl.hsts_max_age needs "
+"to be set to a non ``-1`` value for this configuration to take effect."
+msgstr ""
+"Strict-Transport-Security ヘッダーへの includeSubdomain の値の追加を"
+"有効化 (``1``) もしくは無効化 (``0``) します。この設定の効果を得るためには "
+"proxy.config.ssl.hsts_max_age が ``-1`` 以外の値に設定されている必要があります。"
+
+#: ../../reference/configuration/records.config.en.rst:2066
+msgid ""
+"This configuration specifies whether the client is able to initiate "
+"renegotiation of the SSL connection.  The default of ``0``, means the "
+"client can't initiate renegotiation."
+msgstr ""
+"この設定はクライアントが SSL 接続の再交渉を始めることができるかどうかを"
+"指定します。デフォルトは ``0`` で、クライアントが再交渉を始められないことを"
+"意味します。"
+
+#: ../../reference/configuration/records.config.en.rst:2072
+msgid ""
+"Enables (``1``) or disables (``0``) elevation of traffic_server privileges "
+"during loading of SSL certificates.  By enabling this, SSL certificate "
+"files' access rights can be restricted to help reduce the vulnerability of "
+"certificates."
+msgstr ""
+"SSL 証明書の読み込みの際に traffic_server の権限の昇格を有効化 (``1``) "
+"もしくは無効化 (``0``) します。これを有効化することで、証明書の脆弱性を低減"
+"するために SSL 証明書ファイルのアクセス権限を制限できるようになります。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/remap.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/remap.config.en.po
new file mode 100644
index 00000000..5182b367
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/remap.config.en.po
@@ -0,0 +1,732 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/remap.config.en.rst:20
+msgid "remap.config"
+msgstr "remap.config"
+
+#: ../../reference/configuration/remap.config.en.rst:28
+msgid ""
+"The :file:`remap.config` file contains mapping rules that Traffic Server "
+"uses to perform the following actions:"
+msgstr ""
+":file:`remap.config` ファイルは Traffic Server が以下のアクションを行う際に"
+"利用するマッピングルールを含んでいます。"
+
+#: ../../reference/configuration/remap.config.en.rst:31
+msgid ""
+"Map URL requests for a specific origin server to the appropriate location "
+"on Traffic Server when Traffic Server acts as a reverse proxy for that "
+"particular origin server"
+msgstr ""
+"Traffic Server があるオリジンサーバーのためのリバースプロキシーとして振る舞"
+"うときに、そのオリジンサーバーへの URL リクエストを Traffic Server 上で適切"
+"な場所に対応づける"
+
+#: ../../reference/configuration/remap.config.en.rst:34
+msgid ""
+"Reverse-map server location headers so that when origin servers respond to "
+"a request with a location header that redirects the client to another "
+"location, the clients do not bypass Traffic Server"
+msgstr ""
+"オリジンサーバーがクライアントを他の場所にリダイレクトするロケーションヘッ"
+"ダーでリクエストに応えるときに、そのクライアントが Traffic Server をバイパス"
+"しないようにロケーションヘッダーを対応づける"
+
+#: ../../reference/configuration/remap.config.en.rst:37
+msgid ""
+"Redirect HTTP requests permanently or temporarily without Traffic Server "
+"having to contact any origin servers"
+msgstr ""
+"Traffic Server がオリジンサーバーにコンタクトすることなく恒久的または一時的"
+"に HTTP リクエストをリダイレクトする"
+
+#: ../../reference/configuration/remap.config.en.rst:40
+msgid ""
+"Refer to  :ref:`reverse-proxy-and-http-redirects`, for information about "
+"redirecting HTTP requests and using reverse proxy."
+msgstr ""
+"HTTP リクエストのリダイレクトとリバースプロキシーの使用については :ref:"
+"`reverse-proxy-and-http-redirects` を参照してください。"
+
+#: ../../reference/configuration/remap.config.en.rst:43
+msgid ""
+"After you modify the :file:`remap.config` run the :option:`traffic_line -x` "
+"to apply the changes. When you apply the changes to one node in a cluster, "
+"Traffic Server automatically applies the changes to all other nodes in the "
+"cluster."
+msgstr ""
+":file:`remap.config` ファイルを修正した後は :option:`traffic_line -x` を実行"
+"し変更を適用してください。クラスター内の1つのノードに変更を適用すると "
+"Traffic Server は自動的にクラスター内の他のすべてのノードに変更を適用しま"
+"す。"
+
+#: ../../reference/configuration/remap.config.en.rst:49
+msgid "Format"
+msgstr "フォーマット"
+
+#: ../../reference/configuration/remap.config.en.rst:51
+msgid ""
+"Each line in the :file:`remap.config` file must contain a mapping rule. "
+"Empty lines, or lines starting with ``#`` are ignored. Each line can be "
+"broken up into multiple lines for better readability by using ``\\`` as "
+"continuation marker."
+msgstr ""
+":file:`remap.config` ファイルの各行はマッピングルールを含まなければなりませ"
+"ん。空行や ``#`` で始まる行は無視されます。各行は読みやすさのために ``\\`` "
+"を継続マーカーとして使用して複数行に分割することができます。"
+
+#: ../../reference/configuration/remap.config.en.rst:55
+msgid ""
+"Traffic Server recognizes three space-delimited fields: ``type``, "
+"``target``, and ``replacement``. The following list describes the format of "
+"each field."
+msgstr ""
+"Traffic Server はスペースで区切られた ``type``、``target``、``replacement`` "
+"という 3 つのフィールドを認識します。 次のリストは各フィールドのフォーマット"
+"について説明します。"
+
+#: ../../reference/configuration/remap.config.en.rst:89
+msgid "``type``"
+msgstr "``type``"
+
+#: ../../reference/configuration/remap.config.en.rst:61
+msgid "Enter one of the following:"
+msgstr "次のうち一つを入力してください"
+
+#: ../../reference/configuration/remap.config.en.rst:63
+msgid ""
+"``map`` --translates an incoming request URL to the appropriate origin "
+"server URL."
+msgstr ""
+"``map`` -- 届いたリクエスト URL を適切なオリジンサーバーの URL に変換しま"
+"す。"
+
+#: ../../reference/configuration/remap.config.en.rst:76
+msgid ""
+"``reverse_map`` --translates the URL in origin server redirect responses to "
+"point to the Traffic Server."
+msgstr ""
+"``reverse_map`` -- オリジンサーバーのリダイレクトレスポンス内の URL を "
+"Traffic Server を向くように変換します。"
+
+#: ../../reference/configuration/remap.config.en.rst:79
+msgid ""
+"``redirect`` --redirects HTTP requests permanently without having to "
+"contact the origin server. Permanent redirects notify the browser of the "
+"URL change (by returning an HTTP status code 301) so that the browser can "
+"update bookmarks."
+msgstr ""
+"``redirect`` -- オリジンサーバーにコンタクトすることなく HTTP リクエストを恒"
+"久的にリダイレクトします。恒久的なリダイレクトは、ブラウザーがブックマーク"
+"の URL を更新できるようにするために(HTTP ステータスコード 301 を返すことで) "
+"URL の変更をブラウザーに通知します。"
+
+#: ../../reference/configuration/remap.config.en.rst:84
+msgid ""
+"``redirect_temporary`` --redirects HTTP requests temporarily without having "
+"to contact the origin server. Temporary redirects notify the browser of the "
+"URL change for the current request only (by returning an HTTP status code "
+"307)."
+msgstr ""
+"``redirect_temporary`` -- オリジンサーバーにコンタクトすることなく HTTP リク"
+"エストを一時的にリダイレクトします。一時的なリダイレクトは、URL の変更が今回"
+"のリクエストに限ったものであることを(HTTP ステータスコード 307 を返すことで)"
+"ブラウザーに通知します。"
+
+#: ../../reference/configuration/remap.config.en.rst:98
+msgid "``target``"
+msgstr "``target``"
+
+#: ../../reference/configuration/remap.config.en.rst:94
+#: ../../reference/configuration/remap.config.en.rst:103
+msgid ""
+"Enter the origin (\"from\") URL. You can enter up to four components: ::"
+msgstr ""
+"オリジン(\"from\")の URL を入力してください。4 つの構成要素を入力できま"
+"す。 ::"
+
+#: ../../reference/configuration/remap.config.en.rst:98
+msgid "where ``scheme`` is ``http``."
+msgstr "``scheme`` の部分は ``http`` です。"
+
+#: ../../reference/configuration/remap.config.en.rst:108
+msgid "``replacement``"
+msgstr "``replacement``"
+
+#: ../../reference/configuration/remap.config.en.rst:107
+msgid "where ``scheme`` can be ``http`` or ``https``."
+msgstr "``scheme`` の部分は ``http`` か ``https`` にできます。"
+
+#: ../../reference/configuration/remap.config.en.rst:113
+msgid "Precedence"
+msgstr "優先順位"
+
+#: ../../reference/configuration/remap.config.en.rst:115
+msgid ""
+"Remap rules are not processed top-down, but based on an internal priority"
+msgstr ""
+"リマップルールは上から順にではなく、内部の優先順位をもとに処理されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:119
+msgid "``map`` and ``reverse_map``"
+msgstr "``map`` と ``reverse_map``"
+
+#: ../../reference/configuration/remap.config.en.rst:120
+msgid "``regex_map``"
+msgstr "``regex_map``"
+
+#: ../../reference/configuration/remap.config.en.rst:121
+msgid "``redirect`` and ``redirect_temporary``"
+msgstr "``redirect`` と ``redirect_temporary``"
+
+#: ../../reference/configuration/remap.config.en.rst:122
+msgid "``regex_redirect`` and ``regex_redirect_temporary``"
+msgstr "``regex_redirect`` と ``regex_redirect_temporary``"
+
+#: ../../reference/configuration/remap.config.en.rst:126
+msgid "Match-All"
+msgstr "全一致"
+
+#: ../../reference/configuration/remap.config.en.rst:128
+msgid ""
+"A map rule with a single ``/`` acts as a wildcard, it will match any "
+"request. This should be use with care, and certainly only once at the end "
+"of the remap.config file. E.g."
+msgstr ""
+"1つの ``/`` だけのマップルールはワイルドカードとして働き、あらゆるリクエスト"
+"にマッチします。これは気を付けて使用すべきであり、使用は remap.config ファイ"
+"ルの最後で一度だけであるべきです。"
+
+#: ../../reference/configuration/remap.config.en.rst:137
+#: ../../reference/configuration/remap.config.en.rst:277
+#: ../../reference/configuration/remap.config.en.rst:363
+#: ../../reference/configuration/remap.config.en.rst:388
+#: ../../reference/configuration/remap.config.en.rst:433
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/configuration/remap.config.en.rst:139
+msgid ""
+"The following section shows example mapping rules in the :file:`remap."
+"config` file."
+msgstr "次の章では :file:`remap.config` のマッピングルールの例を紹介します。"
+
+#: ../../reference/configuration/remap.config.en.rst:143
+msgid "Reverse Proxy Mapping Rules"
+msgstr "リバースプロキシーマッピングルール"
+
+#: ../../reference/configuration/remap.config.en.rst:145
+msgid ""
+"The following example shows a map rule that does not specify a path prefix "
+"in the target or replacement: ::"
+msgstr ""
+"次の例ではターゲットや置換えでパスプレフィックスを指定しないマップルールを紹"
+"介します。"
+
+#: ../../reference/configuration/remap.config.en.rst:151
+msgid "This rule results in the following translations:"
+msgstr "このルールの変換結果は次のとおりです"
+
+#: ../../reference/configuration/remap.config.en.rst:154
+#: ../../reference/configuration/remap.config.en.rst:175
+#: ../../reference/configuration/remap.config.en.rst:192
+#: ../../reference/configuration/remap.config.en.rst:211
+#: ../../reference/configuration/remap.config.en.rst:225
+#: ../../reference/configuration/remap.config.en.rst:233
+msgid "Client Request"
+msgstr "クライアントリクエスト"
+
+#: ../../reference/configuration/remap.config.en.rst:154
+#: ../../reference/configuration/remap.config.en.rst:175
+#: ../../reference/configuration/remap.config.en.rst:192
+#: ../../reference/configuration/remap.config.en.rst:211
+#: ../../reference/configuration/remap.config.en.rst:225
+#: ../../reference/configuration/remap.config.en.rst:233
+msgid "Translated Request"
+msgstr "変換されたリクエスト"
+
+#: ../../reference/configuration/remap.config.en.rst:156
+msgid "``http://www.x.com/Widgets/index.html``"
+msgstr "``http://www.x.com/Widgets/index.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:156
+msgid "``http://server.hoster.com/Widgets/index.html``"
+msgstr "``http://server.hoster.com/Widgets/index.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:157
+msgid "``http://www.x.com/cgi/form/submit.sh?arg=true``"
+msgstr "``http://www.x.com/cgi/form/submit.sh?arg=true``"
+
+#: ../../reference/configuration/remap.config.en.rst:157
+msgid "``http://server.hoster.com/cgi/form/submit.sh?arg=true``"
+msgstr "``http://server.hoster.com/cgi/form/submit.sh?arg=true``"
+
+#: ../../reference/configuration/remap.config.en.rst:160
+msgid ""
+"The following example shows a map rule with path prefixes specified in the "
+"target: ::"
+msgstr ""
+"次の例ではターゲットでパスプレフィックスを指定したマップルールを紹介しま"
+"す。 ::"
+
+#: ../../reference/configuration/remap.config.en.rst:172
+msgid "These rules result in the following translations:"
+msgstr "これらのルールの変換結果は次のとおりです。"
+
+#: ../../reference/configuration/remap.config.en.rst:177
+msgid "``http://www.y.com/marketing/projects/manhattan/specs.html``"
+msgstr "``http://www.y.com/marketing/projects/manhattan/specs.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:177
+msgid "``http://marketing.y.com/projects/manhattan/specs.html``"
+msgstr "``http://marketing.y.com/projects/manhattan/specs.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:178
+msgid "``http://www.y.com/stuff/marketing/projects/boston/specs.html``"
+msgstr "``http://www.y.com/stuff/marketing/projects/boston/specs.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:178
+msgid "``http://info.y.com/marketing/projects/boston/specs.html``"
+msgstr "``http://info.y.com/marketing/projects/boston/specs.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:179
+msgid "``http://www.y.com/engineering/marketing/requirements.html``"
+msgstr "``http://www.y.com/engineering/marketing/requirements.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:179
+msgid "``http://engineering.y.com/marketing/requirements.html``"
+msgstr "``http://engineering.y.com/marketing/requirements.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:182
+msgid "The following example shows that the order of the rules matters: ::"
+msgstr "次の例ではルールの順番について紹介します。"
+
+#: ../../reference/configuration/remap.config.en.rst:189
+msgid "These rules result in the following translation."
+msgstr "これらのルールの変換結果は次のとおりです。"
+
+#: ../../reference/configuration/remap.config.en.rst:194
+msgid "``http://www.g.com/stuff/a.gif``"
+msgstr "``http://www.g.com/stuff/a.gif``"
+
+#: ../../reference/configuration/remap.config.en.rst:194
+msgid "``http://external.g.com/stuff/a.gif``"
+msgstr "``http://external.g.com/stuff/a.gif``"
+
+#: ../../reference/configuration/remap.config.en.rst:197
+msgid ""
+"In the above examples, the second rule is never applied because all URLs "
+"that match the second rule also match the first rule. The first rule takes "
+"precedence because it appears earlier in the :file:`remap.config` file."
+msgstr ""
+"上の例では、すべての URL が 最初のルールにも 2番目のルールにもマッチするので"
+"2番目のルールが適用されることはありません。最初のルールは :file:`remap."
+"config` の中で先に出てくるので優先されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:202
+msgid ""
+"The following example shows a mapping with a path prefix specified in the "
+"target and replacement::"
+msgstr ""
+"次の例ではターゲットと置換えでパスプレフィックスを指定するマップルールを紹介"
+"します。"
+
+#: ../../reference/configuration/remap.config.en.rst:208
+msgid "This rule results in the following translation."
+msgstr "このルールの変換結果は次のとおりです"
+
+#: ../../reference/configuration/remap.config.en.rst:213
+msgid "``http://www.h.com/a/b/c/d/doc.html``"
+msgstr "``http://www.h.com/a/b/c/d/doc.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:213
+msgid "``http://server.h.com/customers/x/y/c/d/doc.html``"
+msgstr "``http://server.h.com/customers/x/y/c/d/doc.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:214
+msgid "``http://www.h.com/a/index.html``"
+msgstr "``http://www.h.com/a/index.html``"
+
+#: ../../reference/configuration/remap.config.en.rst:214
+msgid "``Translation fails``"
+msgstr "``変換失敗``"
+
+#: ../../reference/configuration/remap.config.en.rst:217
+msgid "The following example shows reverse-map rules::"
+msgstr "次の例ではリバースマップルールを紹介します。"
+
+#: ../../reference/configuration/remap.config.en.rst:222
+msgid "These rules result in the following translations."
+msgstr "これらのルールの変換結果は次のとおりです。"
+
+#: ../../reference/configuration/remap.config.en.rst:227
+#: ../../reference/configuration/remap.config.en.rst:235
+msgid "``http://www.x.com/Widgets``"
+msgstr "``http://www.x.com/Widgets``"
+
+#: ../../reference/configuration/remap.config.en.rst:227
+msgid "``http://server.hoster.com/x/Widgets``"
+msgstr "``http://server.hoster.com/x/Widgets``"
+
+#: ../../reference/configuration/remap.config.en.rst:233
+msgid "Origin Server Header"
+msgstr "オリジンサーバーヘッダー"
+
+#: ../../reference/configuration/remap.config.en.rst:235
+msgid "``http://server.hoster.com/x/Widgets/``"
+msgstr "``http://server.hoster.com/x/Widgets/``"
+
+#: ../../reference/configuration/remap.config.en.rst:235
+msgid "``http://www.x.com/Widgets/``"
+msgstr "``http://www.x.com/Widgets/``"
+
+#: ../../reference/configuration/remap.config.en.rst:238
+msgid ""
+"When acting as a reverse proxy for multiple servers, Traffic Server is "
+"unable to route to URLs from older browsers that do not send the ``Host:`` "
+"header. As a solution, set the variable :ts:cv:`proxy.config.header.parse."
+"no_host_url_redirect` in the :file:`records.config` file to the URL to "
+"which Traffic Server will redirect requests without host headers."
+msgstr ""
+"複数のサーバーのリバースプロキシーとして振る舞うとき、Traffic Server は "
+"``Host:`` ヘッダーを送信しない古めのブラウザーに URL を示せません。解決策と"
+"して、Traffic Server がホストヘッダーの無いリクエストをリダイレクトする URL "
+"を :file:`records.config` の :ts:cv:`proxy.config.header.parse."
+"no_host_url_redirect` 変数に設定してください。"
+
+#: ../../reference/configuration/remap.config.en.rst:245
+msgid "Redirect Mapping Rules"
+msgstr "リダイレクトマッピングルール"
+
+#: ../../reference/configuration/remap.config.en.rst:247
+msgid ""
+"The following rule permanently redirects all HTTP requests for ``www."
+"company.com`` to ``www.company2.com``: ::"
+msgstr ""
+"次のルールは ``www.company.com`` へのすべての HTTP リクエストを恒久的に "
+"``www.company2.com`` へリダイレクトします ::"
+
+#: ../../reference/configuration/remap.config.en.rst:252
+msgid ""
+"The following rule *temporarily* redirects all HTTP requests for ``www."
+"company1.com`` to ``www.company2.com``: ::"
+msgstr ""
+"次のルールは ``www.company.com`` へのすべての HTTP リクエストを *一時的に* "
+"``www.company2.com`` へリダイレクトします ::"
+
+#: ../../reference/configuration/remap.config.en.rst:260
+msgid "Regular Expression (regex) Remap Support"
+msgstr "正規表現 (regex) リマップサポート"
+
+#: ../../reference/configuration/remap.config.en.rst:262
+msgid ""
+"Regular expressions can be specified in remapping rules, with the "
+"limitations below:"
+msgstr ""
+"以下の制限のもとに、リマッピングルールに正規表現を指定することができます"
+
+#: ../../reference/configuration/remap.config.en.rst:265
+msgid ""
+"Only the ``host`` field can contain a regex; the ``scheme``, ``port``, and "
+"other fields cannot. For path manipulation via regexes, use the "
+"``regex_remap`` plugin."
+msgstr ""
+"``host`` フィールドだけに regex を含められます。``scheme``、``port``、その他"
+"のフィールドには含められません。パスを regex で操作するには ``regex_remap`` "
+"プラグインを使用してください。"
+
+#: ../../reference/configuration/remap.config.en.rst:268
+msgid ""
+"The number of capturing subpatterns is limited to 9. This means that ``$0`` "
+"through ``$9`` can be used as subtraction placeholders (``$0`` will be the "
+"entire input string)."
+msgstr ""
+"サブパターンのキャプチャ数は 9 個に制限されます。これは ``$0`` から ``$9`` "
+"までが置換えプレースホルダーとして使えることを意味します(``$0`` は入力文字列"
+"全体になります)。"
+
+#: ../../reference/configuration/remap.config.en.rst:271
+msgid "The number of substitutions in the expansion string is limited to 10."
+msgstr "展開文字列内の置換え数は 10 個に制限されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:272
+msgid ""
+"There is no ``regex_`` equivalent to ``reverse_remap``, so when using "
+"``regex_remap`` you should make sure the reverse path is clear by setting (:"
+"ts:cv:`proxy.config.url_remap.pristine_host_hdr`)"
+msgstr ""
+"``reverse_remap`` と同じ意味になる ``regex_`` は無いので、``regex_remap`` を"
+"使用するときは設定により逆のパスが明確であることを確かにしておくべきです。(:"
+"ts:cv:`proxy.config.url_remap.pristine_host_hdr`)"
+
+#: ../../reference/configuration/remap.config.en.rst:356
+msgid "Plugin Chaining"
+msgstr "プラグインの連鎖"
+
+#: ../../reference/configuration/remap.config.en.rst:358
+msgid ""
+"Plugins can be configured to be evaluated in a specific order, passing the "
+"results from one in to the next (unless a plugin returns 0, then the \"chain"
+"\" is broken)."
+msgstr ""
+"プラグインは指定した順番で、結果を次へと渡しながら評価するように設定できま"
+"す。(プラグインが 0 を返さない限り続き、返されると \"連鎖\"は切れます。)"
+
+#: ../../reference/configuration/remap.config.en.rst:371
+msgid "will pass \"1\" and \"2\" to plugin1.so and \"3\" to plugin2.so."
+msgstr ""
+"これは \"1\" と \"2\" を plugin1.so に \"3\" を plugin2.so に渡します。"
+
+#: ../../reference/configuration/remap.config.en.rst:373
+msgid "This will pass \"1\" and \"2\" to plugin1.so and \"3\" to plugin2.so"
+msgstr ""
+"これは \"1\" と \"2\" を plugin1.so に \"3\" を plugin2.so に渡します。"
+
+#: ../../reference/configuration/remap.config.en.rst:378
+msgid "Named Filters"
+msgstr "名前付きフィルター"
+
+#: ../../reference/configuration/remap.config.en.rst:380
+msgid ""
+"Named filters can be created and applied to blocks of mappings using the ``."
+"definefilter``, ``.activatefilter``, and ``.deactivatefilter`` directives. "
+"Named filters must be defined using ``.definefilter`` before being used. "
+"Once defined, ``.activatefilter`` can used to activate a filter for all "
+"mappings that follow until deactivated with ``.deactivatefilter``."
+msgstr ""
+"名前付きフィルターは、``.definefilter``、``.activatefilter`` そして ``."
+"deactivatefilter`` というディレクティブによって作られ、マッピングのブロック"
+"に適用されます。名前付きフィルターは使用される前に ``.definefilter`` によっ"
+"て作成されなければなりません。一度定義された後は ``.activatefilter`` でフィ"
+"ルターが有効化し ``.deactivatefilter`` で無効化されるまでのすべてのマッピン"
+"グで使用できます。"
+
+#: ../../reference/configuration/remap.config.en.rst:405
+msgid ""
+"The filter `disable_delete_purge` will be applied to all of the mapping "
+"rules. (It is activated before any mappings and is never deactivated.) The "
+"filter `internal_only` will only be applied to the second mapping."
+msgstr ""
+"`disable_delete_purge` フィルターはすべてのマッピングルールに適用されます。"
+"(これはあらゆるマッピングの前に有効化され無効化されることはありませ"
+"ん。)`internal_only` フィルターは 2番目のマッピングのみに適用されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:66
+msgid ""
+"``map_with_recv_port`` --exactly like 'map' except that it uses the port at "
+"which the request was received to perform the mapping instead of the port "
+"present in the request. The regex qualifier can also be used for this type. "
+"When present, 'map_with_recv_port' mappings are checked first. If there is "
+"a match, then it is chosen without evaluating the \"regular\" forward "
+"mapping rules."
+msgstr ""
+"``map_with_recv_port`` -- リクエストにあるポートの代わりにリクエストを受け"
+"取ったポートをマッピングを行うために使うことを除いて 'map' とまったく同じで"
+"す。 regex 修飾子もこのタイプで使用可能です。もし存在するなら"
+"ば、'map_with_recv_port' によるマッピングは最初に確認されます。マッチするも"
+"のがある場合、\"通常\" の順マッピングルールを評価することなくそれが選ばれま"
+"す。"
+
+#: ../../reference/configuration/remap.config.en.rst:72
+msgid ""
+"``map_with_referer`` -- extended version of 'map', which can be used to "
+"activate \"deep linking protection\", where target URLs are only accessible "
+"when the Referer header is set to a URL that is allowed to link to the "
+"target."
+msgstr ""
+"``map_with_referer`` -- 'map' の拡張バージョンで、Referer ヘッダーがターゲッ"
+"トへのリンクを許された URL にセットされている場合にのみターゲット URL にアク"
+"セス可能な \"直リンク禁止機能\" を動作させるために使用されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:118
+msgid "``map_with_recv_port``"
+msgstr "``map_with_recv_port``"
+
+#: ../../reference/configuration/remap.config.en.rst:287
+msgid "map_with_referer"
+msgstr "map_with_referer"
+
+#: ../../reference/configuration/remap.config.en.rst:289
+msgid "the format of is the following::"
+msgstr "フォーマットは次のとおりです。"
+
+#: ../../reference/configuration/remap.config.en.rst:293
+msgid ""
+"'redirect-URL' is a redirection URL specified according to RFC 2616 and can "
+"contain special formatting instructions for run-time modifications of the "
+"resulting redirection URL.  All regexes Perl compatible  regular "
+"expressions, which describes the content of the \"Referer\" header which "
+"must be verified. In case an actual request does not have \"Referer\" "
+"header or it does not match with referer regular expression, the HTTP "
+"request will be redirected to 'redirect-URL'."
+msgstr ""
+"'redirect-URL' は RFC 2616 に従って指定されたリダイレクト先 URL であり、実行"
+"時のリダイレクト先 URL の修正のために特別なフォーマットの命令を含むことがで"
+"きます。すべての regex は検証されなければならない \"Referer\" ヘッダーの内容"
+"を記述する Perl 互換の正規表現です。実際のリクエストが \"Referer\" ヘッダー"
+"を持っていないかリファラーの正規表現にマッチしない場合、HTTP リクエストは "
+"'redirect-URL' にリダイレクトされます。"
+
+#: ../../reference/configuration/remap.config.en.rst:301
+msgid ""
+"At least one regular expressions must be specified in order to activate "
+"'deep linking protection'.  There are limitations for the number of referer "
+"regular expression strings - 2048.  In order to enable the 'deep linking "
+"protection' feature in Traffic Server, configure records.config with::"
+msgstr ""
+"'直リンク禁止機能' を動作させるためには少なくとも一つの正規表現が指定されて"
+"いなければ成りません。リファラー正規表現の数には制限があり 2048 です。"
+"Traffic Server で '直リンク禁止機能' を有効化するためには records.config の"
+"次の変数を設定してください。"
+
+#: ../../reference/configuration/remap.config.en.rst:308
+msgid "In order to enable run-time formatting for redirect URL, configure::"
+msgstr ""
+"実行時のリダイレクト先 URL の整形を有効化するには次の設定を行ってください。"
+
+#: ../../reference/configuration/remap.config.en.rst:312
+msgid ""
+"When run-time formatting for redirect-URL was enabled the following format "
+"symbols can be used::"
+msgstr ""
+"実行時の redirect-URL の整形が有効化された場合は次の整形シンボルが使用できま"
+"す。"
+
+#: ../../reference/configuration/remap.config.en.rst:321
+msgid ""
+"Note: There is a special referer type \"~*\" that can be used in order to "
+"specify that the Referer header is optional in the request.  If \"~*\" "
+"referer was used in map_with_referer mapping, only requests with Referer "
+"header will be verified for validity.  If the \"~\" symbol was specified "
+"before referer regular expression, it means that the request with a "
+"matching referer header will be redirected to redirectURL. It can be used "
+"to create a so-called negative referer list.  If \"*\" was used as a "
+"referer regular expression - all referers are allowed.  Various "
+"combinations of \"*\" and \"~\" in a referer list can be used to create "
+"different filtering rules."
+msgstr ""
+"注意: リクエストの Referer ヘッダーが任意であると指定するために使用可能な "
+"\"~*\" という特別なリファラータイプがあります。もし \"~*\" というリファラー"
+"が map_with_referer マッピングで使用された場合、Referer ヘッダーを持つリクエ"
+"ストのみが妥当性を検証されます。もし \"~\" シンボルがリファラー正規表現より"
+"前に指定された場合は、マッチするリファラーを持つリクエストは redirectURL に"
+"リダイレクトされることを意味します。これはいわゆるネガティブリファラー一覧を"
+"作るために使用できます。もし \"*\" がリファラー正規表現として使用された場"
+"合、すべてのリファラーが許可されます。リファラー一覧内の様々な \"*\" と \"~"
+"\" の組み合わせは異なったフィルタリングルールを作るために使用されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:332
+msgid "map_with_referer Examples"
+msgstr "map_with_referer の例"
+
+#: ../../reference/configuration/remap.config.en.rst:338
+msgid ""
+"Explanation: Referer header must be in the request, only \".*\\.bar\\.com\" "
+"and \"www.bar-friends.com\" are allowed."
+msgstr ""
+"説明: Referer ヘッダーがリクエストに含まれていなければならず、\".*\\.bar\\."
+"com\" と \"www.bar-friends.com\" のみが許可されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:344
+msgid ""
+"Explanation: Referer header must be in the request but all referers are "
+"allowed except \".*\\.evil\\.com\"."
+msgstr ""
+"説明: Referer ヘッダーがリクエストに含まれていなければなりませんが、\".*\\."
+"evil\\.com\" を除くすべてのリファラーが許可されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:350
+msgid ""
+"Explanation: Referer header is optional. However, if Referer header exists, "
+"only request from \".*\\.evil\\.com\" will be redirected to redirect-URL."
+msgstr ""
+"説明: Referer ヘッダーの存在は任意です。しかし Referer ヘッダーが存在する場"
+"合、\".*\\.evil\\.com\" からのリクエストだけは redirect-URL にリダイレクトさ"
+"れます。"
+
+#: ../../reference/configuration/remap.config.en.rst:411
+msgid "Including Additional Remap Files"
+msgstr "追加のリマップファイルの取り込み"
+
+#: ../../reference/configuration/remap.config.en.rst:413
+msgid ""
+"The ``.include`` directive allows mapping rules to be spread across "
+"multiple files. The argument to the ``.include`` directive is a list of "
+"file names to be parsed for additional mapping rules. Unless the names are "
+"absolute paths, they are resolved relative to the Traffic Server "
+"configuration directory."
+msgstr ""
+"``.include`` ディレクティブはマッピングルールを複数のファイルに分散できるよ"
+"うにします。``.include`` ディレクティブの引数は追加のマッピングルールのため"
+"にパースされるファイル名のリストです。ファイル名が絶対パスでない場合は "
+"Traffic Server の設定ディレクトリからの相対で解決されます。"
+
+#: ../../reference/configuration/remap.config.en.rst:419
+msgid ""
+"The effect of the ``.include`` directive is as if the contents of the "
+"listed files is included in the parent and parsing restarted at the point "
+"of inclusion. This means that and filters named in the included files are "
+"global in scope, and that additional ``.include`` directives are allowed."
+msgstr ""
+"``.include`` ディレクティブの効果はリストのファイルが親に含まれていて取り込"
+"んだ場所からパースが再開されるようなものです。これは取り込まれたファイル内で"
+"名前の付けられたフィルターはスコープ内でグローバルであり、さらなる ``."
+"include`` ディレクティブも許されることを意味します。"
+
+#: ../../reference/configuration/remap.config.en.rst:427
+msgid ""
+"Included remap files are not currently tracked by the configuration "
+"subsystem. Changes to included remap files will not be noticed by online "
+"configuration changes applied by :option:`traffic_line -x` unless :file:"
+"`remap.config` has also changed."
+msgstr ""
+"取り込まれたリマップファイルは現在は設定サブシステムによって監視されていませ"
+"ん。取り込まれたリマップファイルの変更は :file:`remap.config` も変更されない"
+"限りは :option:`traffic_line -x` で適用されるオンラインでの設定の変更によっ"
+"て通知されません。"
+
+#: ../../reference/configuration/remap.config.en.rst:435
+msgid ""
+"In this example, a top-level :file:`remap.config` file simply references "
+"additional mapping rules files ::"
+msgstr ""
+"この例では、トップレベルの :file:`remap.config` ファイルが単純に追加のマッピ"
+"ングルールファイルを参照しています。"
+
+#: ../../reference/configuration/remap.config.en.rst:441
+msgid "The file `filters.config` contains ::"
+msgstr "`filters.config` は次のルールを含んでいます。"
+
+#: ../../reference/configuration/remap.config.en.rst:446
+msgid "The file `one.example.com.config` contains::"
+msgstr "`one.example.com.config` は次のルールを含んでいます。"
+
+#: ../../reference/configuration/remap.config.en.rst:452
+msgid "The file `two.example.com.config` contains::"
+msgstr "`two.example.com.config` は次のルールを含んでいます。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/splitdns.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/splitdns.config.en.po
new file mode 100644
index 00000000..2b69e9d0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/splitdns.config.en.po
@@ -0,0 +1,196 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/splitdns.config.en.rst:20
+msgid "splitdns.config"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:24
+msgid ""
+"The :file:`splitdns.config` file enables you to specify the DNS server that "
+"Traffic Server should use for resolving hosts under specific conditions. "
+"For more information, refer to :ref:`configuring-dns-server-selection-split-"
+"dns`."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:28
+msgid ""
+"To specify a DNS server, you must supply the following information in each "
+"active line within the file:"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:31
+msgid ""
+"A primary destination specifier in the form of a destination domain, a "
+"destination host, or a URL regular expression"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:33
+msgid ""
+"A set of server directives, listing one or more DNS servers with "
+"corresponding port numbers"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:36
+msgid ""
+"You can also include the following optional information with each DNS "
+"server specification:"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:39
+msgid "A default domain for resolving hosts"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:40
+msgid ""
+"A search list specifying the domain search order when multiple domains are "
+"specified"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:43
+msgid ""
+"After you modify the :file:`splitdns.config` file, run the :option:"
+"`traffic_line -x` command to apply the changes. When you apply changes to a "
+"node in a cluster, Traffic Server automatically applies the changes to all "
+"other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:50
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:52
+msgid ""
+"Each line in the :file:`splitdns.config` file uses one of the following "
+"formats: ::"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:57
+msgid "The following list describes each field."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:64
+msgid "``dest_domain``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:62
+msgid ""
+"A valid domain name. This specifies that DNS server selection will be based "
+"on the destination domain. You can prefix the domain with an exclamation "
+"mark (``!``) to indicate the NOT logical operator."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:71
+msgid "``dest_host``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:69
+msgid ""
+"A valid hostname. This specifies that DNS server selection will be based on "
+"the destination host. You can prefix the host with an exclamation mark (``!"
+"``) to indicate the ``NOT`` logical operator."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:77
+msgid "``url_regex``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:76
+msgid ""
+"A valid URL regular expression. This specifies that DNS server selection "
+"will be based on a regular expression."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:89
+msgid "``dns_server``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:82
+msgid ""
+"This is a required directive. It identifies the DNS server that Traffic "
+"Server should use with the given destination specifier. You can specify a "
+"port using a colon (``:``). If you do not specify a port, then 53 is used. "
+"Specify multiple DNS servers with spaces or semicolons (``;``) as "
+"separators."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:88
+msgid ""
+"You must specify the domains with IP addresses in CIDR (\"dot\") notation."
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:97
+msgid "``def_domain``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:94
+msgid ""
+"A valid domain name. This optional directive specifies the default domain "
+"name to use for resolving hosts. Only one entry is allowed. If you do not "
+"provide the default domain, the system determines its value from ``/etc/"
+"resolv.conf``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:104
+msgid "``search_list``"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:102
+msgid ""
+"A list of domains separated by spaces or semicolons (;). This specifies the "
+"domain search order. If you do not provide the search list, the system "
+"determines the value from :manpage:`resolv.conf(5)`"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:107
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:109
+msgid "Consider the following DNS server selection specifications: ::"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:114
+msgid "Now consider the following two requests: ::"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:118
+msgid ""
+"This request matches the first line and therefore selects DNS server "
+"``255.255.255.255`` on port ``212``. All resolver requests use ``company."
+"com`` as the default domain, and ``company.com`` and ``company1.com`` as "
+"the set of domains to search first. ::"
+msgstr ""
+
+#: ../../reference/configuration/splitdns.config.en.rst:125
+msgid ""
+"This request matches the second line. Therefore, Traffic Server selects DNS "
+"server ``255.255.255.253``. Because no ``def_domain`` or ``search_list`` "
+"was supplied, Traffic Server retrieves this information from :manpage:"
+"`resolv.conf(5)`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/ssl_multicert.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/ssl_multicert.config.en.po
new file mode 100644
index 00000000..83ad6700
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/ssl_multicert.config.en.po
@@ -0,0 +1,291 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:20
+msgid "ssl_multicert.config"
+msgstr "ssl_multicert.config"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:24
+msgid ""
+"The :file:`ssl_multicert.config` file lets you configure Traffic Server to "
+"use multiple SSL server certificates to terminate the SSL sessions. If you "
+"have a Traffic Server system with more than one IP address assigned to it, "
+"then you can assign a different SSL certificate to be served when a client "
+"requests a particular IP address or host name."
+msgstr ""
+":file:`ssl_multicert.config` ファイルでは Traffic Server が SSL セッションの"
+"ターミネーションを行うために複数の SSL サーバー証明書を使用する設定を行えま"
+"す。一つ以上の IP アドレスを割り当てた Traffic Server システム をもっている"
+"場合、クライアントが特定の IP アドレスもしくはホスト名をリクエストした際に異"
+"なる SSL 証明書が利用されるように割り当てることができます。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:31
+msgid ""
+"At configuration time, certificates are parsed to extract the certificate "
+"subject and all the DNS `subject alternative names <http://en.wikipedia.org/"
+"wiki/SubjectAltName>`_.  A certificate will be presented for connections "
+"requesting any of the hostnames found in the certificate. Wildcard names "
+"are supported, but only of the form `*.domain.com`, ie. where `*` is the "
+"leftmost domain component."
+msgstr ""
+"設定時、証明書は証明書のサブジェクトとすべての DNS `サブジェクト別名 "
+"<http://en.wikipedia.org/wiki/SubjectAltName>`_ を展開するためにパースされま"
+"す。証明書は証明書内にあるどれかのホスト名を要求する接続で渡されます。ワイル"
+"ドカードの名前は、`*.domain.com` という形式のみ、すなわち `*` がドメインの一"
+"番左にあるもののみサポートされています。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:39
+msgid ""
+"Changes to :file:`ssl_multicert.config` can be applied to a running Traffic "
+"Server using :option:`traffic_line -x`."
+msgstr ""
+":file:`ssl_multicert.config` への変更は :option:`traffic_line -x` の使用によ"
+"り実行中の Traffic Server に適用できます。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:43
+msgid "Format"
+msgstr "フォーマット"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:45
+msgid ""
+"Each :file:`ssl_multicert.config` line consists of a sequence of "
+"`key=value` fields that specify how Traffic Server should use a particular "
+"SSL certificate."
+msgstr ""
+":file:`ssl_multicert.config` の各行は Traffic Server が特定の SSL 証明書をど"
+"う使用すべきかを指定する `key=value` フィールドの連続で成っています。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:64
+msgid "dest_ip=ADDRESS"
+msgstr "dest_ip=ADDRESS"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:56
+msgid ""
+"The IP (v4 or v6) address that the certificate should be presented on. This "
+"is now only used as a fallback in the case that the TLS "
+"SubjectNameIndication extension is not supported. If `ADDRESS` is `*`, the "
+"corresponding certificate will be used as the global default fallback if no "
+"other match can be made.  The address may contain a port specifier, in "
+"which case the corresponding certificate will only match for connections "
+"accepted on the specified port. IPv6 addresses must be enclosed by square "
+"brackets if they have a port, eg, [::1]:80."
+msgstr ""
+"証明書が提出されるべき IP アドレス (v4 か v6) です。これは現在では TLS "
+"SubjectNameIndication 拡張がサポートされていない場合のフォールバックとしての"
+"み使用されます。`ADDRESS` が `*` の場合、他にマッチするものがなければグロー"
+"バルデフォルトフォールバックとして対応する証明書が使用されます。アドレスは"
+"ポート指定子を含んでもよく、その場合対応する証明書は特定のポートで受け入れら"
+"れたコネクションのみにマッチします。ポート指定がある場合、IPv6 アドレスは角"
+"括弧で囲われていなければなりません。例、[::1]:80 。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:76
+msgid "ssl_ca_name=FILENAME"
+msgstr "ssl_ca_name=FILENAME"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:98
+msgid "Certificate Selection"
+msgstr "証明書の選択"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:100
+msgid ""
+"Traffic Server attempts two certificate selections during SSL connection "
+"setup. An initial selection is made when a TCP connection is accepted. This "
+"selection examines the IP address and port that the client is connecting to "
+"and chooses the best certificate from the those that have a ``dest_ip`` "
+"specification. If no matching certificates are found, a default certificate "
+"is chosen.  The final certificate selection is made during the SSL "
+"handshake.  At this point, the client may use `Server Name Indication "
+"<http://en.wikipedia.org/wiki/Server_Name_Indication>`_ to request a "
+"specific hostname. Traffic Server will use this request to select a "
+"certificate with a matching subject or subject alternative name. Failing "
+"that, a wildcard certificate match is attempted. If no match can be made, "
+"the initial certificate selection remains in force."
+msgstr ""
+"Traffic Server は SSL 接続のセットアップの間に二回の証明書の選択を試みます。"
+"初回の選択は TCP の接続が受け入れられたときに行われます。この選択ではクライ"
+"アントが接続しようとしている IP アドレスとポートを検査し、``dest_ip`` の指定"
+"をもつものから最適な証明書を選びます。マッチする証明書が見つからない場合は、"
+"デフォルトの証明書が選ばれます。最後の選択は SSL ハンドシェイクの間に行われ"
+"ます。このとき、クライアントは具体的なホスト名を要求するために `Server Name "
+"Indication <http://en.wikipedia.org/wiki/Server_Name_Indication>`_ を使用す"
+"ることがあります。Traffic Server はサブジェクトまたはサブジェクト別名のマッ"
+"チングにより証明書を選択するためにこのリクエストを使用するでしょう。それに失"
+"敗すると、ワイルドカードによる証明書のマッチが試されます。いずれにもマッチし"
+"ない場合、初回の証明書の選択がそのまま有効となります。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:114
+msgid ""
+"In all cases, Traffic Server attempts to select the most specific match. An "
+"address specification that contains a port number will take precedence over "
+"a specification that does not contain a port number. A specific certificate "
+"subject will take precedence over a wildcard certificate."
+msgstr ""
+"すべてのケースで、Traffic Server は最も適切なものを選択します。ポート番号を"
+"を含むアドレス指定は、ポート番号を含まない指定に先立って行われます。具体的な"
+"証明サブジェクトはワイルドカードによる証明に先立って使用されます。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:121
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:123
+msgid ""
+"The following example configures Traffic Server to use the SSL certificate "
+"``server.pem`` for all requests to the IP address 111.11.11.1 and the SSL "
+"certificate ``server1.pem`` for all requests to the IP address 11.1.1.1. "
+"Connections from all other IP addresses are terminated with the ``default."
+"pem`` certificate. Since the private key is included in the certificate "
+"files, no private key name is specified."
+msgstr ""
+"次の例は Traffice Server が SSL 証明書 ``server.pem`` を IP アドレス "
+"111.11.11.1 へのすべてのリクエストに使用し、SSL 証明書 ``server1.pem`` を "
+"IP アドレス 11.1.1.1 へのすべてのリクエストに使用するように設定しています。"
+"その他のすべての IP アドレスからの接続は証明書 ``default.pem`` によってター"
+"ミネートされます。秘密鍵は証明書に含まれているので、秘密鍵の名前は指定されて"
+"いません。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:137
+msgid ""
+"The following example configures Traffic Server to use the SSL certificate "
+"``server.pem`` and the private key ``serverKey.pem`` for all requests to "
+"port 8443 on IP address 111.11.11.1. The ``general.pem`` certificate is "
+"used for server name matches."
+msgstr ""
+"次の例は Traffic Server が SSL 証明書 ``server.pem`` と秘密鍵 ``serverKey."
+"pem`` を IP アドレス 111.11.11.1 のポート 8443 へのすべてのリクエストに使用"
+"するよう設定しています。証明書 ``general.pem`` はサーバー名がマッチするもの"
+"で使用されます。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:53
+msgid "ssl_cert_name=FILENAME"
+msgstr "ssl_cert_name=FILENAME"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:50
+msgid ""
+"The name of the file containing the TLS certificate. `FILENAME` is located "
+"relative to the directory specified by the :ts:cv:`proxy.config.ssl.server."
+"cert.path` configuration variable. This is the only field that is required "
+"to be present."
+msgstr ""
+"TLS 証明書を含んでいるファイルの名前です。`FILENAME` は :ts:cv:`proxy."
+"config.ssl.server.cert.path` 設定変数で指定されたディレクトリからの相対位置"
+"です。これは設定が必要とされている唯一のフィールドです。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:70
+msgid "ssl_key_name=FILENAME"
+msgstr "ssl_key_name=FILENAME"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:67
+msgid ""
+"The name of the file containing the private key for this certificate. If "
+"the key is contained in the certificate file, this field can be omitted, "
+"otherwise `FILENAME` is resolved relative to the :ts:cv:`proxy.config.ssl."
+"server.private_key.path` configuration variable."
+msgstr ""
+"この証明書のための秘密鍵を含んでいるファイルの名前です。もし鍵が証明書に含ま"
+"れている場合、このフィールドは省略可能です。そうでは無い場合、`FILENAME` "
+"は :ts:cv:`proxy.config.ssl.server.private_key.path` 設定変数からの相対で解"
+"決されます。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:73
+msgid ""
+"If the certificate is issued by an authority that is not in the system CA "
+"bundle, additional certificates may be needed to validate the certificate "
+"chain. `FILENAME` is resolved relative to the :ts:cv:`proxy.config.ssl.CA."
+"cert.path` configuration variable."
+msgstr ""
+"システムの CA バンドルにない認証局によって発行された証明書では、証明書チェー"
+"ンの検証のために追加の証明書が必要になることがあります。`FILENAME` は :ts:"
+"cv:`proxy.config.ssl.CA.cert.path` 設定変数からの相対で解決されます。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:81
+msgid "ssl_ticket_enabled=1|0"
+msgstr "ssl_ticket_enabled=1|0"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:79
+msgid ""
+"Enable :rfc:`5077` stateless TLS session tickets. To support this, OpenSSL "
+"should be upgraded to version 0.9.8f or higher. This option must be set to "
+"`0` to disable session ticket support."
+msgstr ""
+":rfc:`5077` ステートレス TLS セッションチケットを有効化します。これに対応す"
+"るには OpenSSL がバージョン 0.9.8f 以上にアップグレードされている必要があり"
+"ます。このオプションはセッションチケットのサポートを無効化するために `0` に"
+"設定されなければなりません。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:95
+msgid "ticket_key_name=FILENAME"
+msgstr "ticket_key_name=FILENAME"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:84
+msgid ""
+"The name of session ticket key file which contains a secret for encrypting "
+"and decrypting TLS session tickets. If `FILENAME` is not an absolute path, "
+"it is resolved relative to the :ts:cv:`proxy.config.ssl.server.cert.path` "
+"configuration variable. This option has no effect if session tickets are "
+"disabled by the ``ssl_ticket_enabled`` option.  The contents of the key "
+"file should be 48 random bytes."
+msgstr ""
+"TSL セッションの暗号化と復号化のための秘密情報を含むセッションチケットキー"
+"ファイルの名前です。もし `FILENAME` が絶対パスではない場合、:ts:cv:`proxy."
+"config.ssl.server.cert.path` 設定変数からの相対で解決されます。このオプショ"
+"ンは ``ssl_ticket_enabled`` オプションでセッションチケットが無効化されている"
+"場合には効果をもちません。キーファイルの内容はランダムな 48 バイトのはずで"
+"す。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:92
+msgid ""
+"Session ticket support is enabled by default. If neither of the "
+"``ssl_ticket_enabled`` and ``ticket_key_name`` options are specified, and "
+"internal session ticket key is generated. This key will be different each "
+"time Traffic Server is started."
+msgstr ""
+"セッションチケットサポートはデフォルトで有効化されています。もし "
+"``ssl_ticket_enabled`` と ``ticket_key_name`` オプションのどちらかが指定され"
+"ていない場合、内部セッションチケットキーが生成されます。キーは Traffic "
+"Server が起動されるたびに毎回異なります。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:146
+msgid ""
+"The following example configures Traffic Server to use the SSL certificate "
+"``server.pem`` for all requests to the IP address 111.11.11.1. Session "
+"tickets are enabled with a persistent ticket key."
+msgstr ""
+"次の例は Traffice Server が SSL 証明書 ``server.pem`` を IP アドレス "
+"111.11.11.1 へのすべてのリクエストに使用するように設定しています。セッション"
+"チケットは恒久的なチケットキーで有効化されています。"
+
+#: ../../reference/configuration/ssl_multicert.config.en.rst:155
+msgid ""
+"The following example configures Traffic Server to use the SSL certificate "
+"``server.pem`` and disable sessiont ticket for all requests to the IP "
+"address 111.11.11.1."
+msgstr ""
+"次の例は Traffice Server が IP アドレス 111.11.11.1 へのすべてのリクエスト"
+"で SSL 証明書 ``server.pem`` を 使用し、セッションチケットを無効化するように"
+"設定しています。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/storage.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/storage.config.en.po
new file mode 100644
index 00000000..8a92d426
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/storage.config.en.po
@@ -0,0 +1,255 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2013-11-13 01:18+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/storage.config.en.rst:20
+msgid "storage.config"
+msgstr ""
+
+#: ../../reference/configuration/storage.config.en.rst:24
+msgid ""
+"The :file:`storage.config` file lists all the files, directories, and/or "
+"hard disk partitions that make up the Traffic Server cache. After you "
+"modify the :file:`storage.config` file, you must restart Traffic Server."
+msgstr ""
+":file:`storage.config` ファイルは、Traffic Serverのキャッシュとして構成する"
+"全てのファイル、ディレクトリやハードディスクパーティションを列挙します。:"
+"file:`storage.config` ファイル修正後は、Traffic Server を再起動しなければい"
+"けません。"
+
+#: ../../reference/configuration/storage.config.en.rst:29
+msgid "Format"
+msgstr "フォーマット"
+
+#: ../../reference/configuration/storage.config.en.rst:31
+msgid "The format of the :file:`storage.config` file is::"
+msgstr ":file:`storage.config` ファイルのフォーマットは::"
+
+#: ../../reference/configuration/storage.config.en.rst:35
+msgid ""
+"where :arg:`pathname` is the name of a partition, directory or file, :arg:"
+"`size` is the size of the named partition, directory or file (in bytes), "
+"and :arg:`volume` is the volume number that is used in :file:`volume."
+"config` and :file:`hosting.config`. You must specify a size for directories "
+"or files; size is optional for raw partitions. :arg:`volume` is optional."
+msgstr ""
+":arg:`pathname`  にはパーティションやディレクトリ、ファイルの名前を記述しま"
+"す。:arg:`size` には名前を付けたパーティション、ディレクトリやファイルのサイ"
+"ズを(バイト単位で)指定します。:arg:`volume`  には :file:`volume.config` と :"
+"file:`hosting.config` で使用されているボリューム番号を指定します。ディレクト"
+"リやファイルはサイズを指定しなければいけません。ローパーティションについては"
+"任意です。:arg:`volume` は任意です。"
+
+#: ../../reference/configuration/storage.config.en.rst:41
+msgid "You can use any partition of any size. For best performance:"
+msgstr ""
+"どんなサイズのどんなパーティションでも使用する事が出来ます。最適な性能のため"
+"には以下のようにします:"
+
+#: ../../reference/configuration/storage.config.en.rst:43
+msgid "Use raw disk partitions."
+msgstr "ローディスクパーティションを使用する"
+
+#: ../../reference/configuration/storage.config.en.rst:44
+msgid "For each disk, make all partitions the same size."
+msgstr "各ディスクで、全パーティションを同じサイズになるように作成する"
+
+#: ../../reference/configuration/storage.config.en.rst:45
+msgid "For each node, use the same number of partitions on all disks."
+msgstr "各ノードで、全ディスクのパーティションを数が同じになるように作成する"
+
+#: ../../reference/configuration/storage.config.en.rst:46
+msgid ""
+"Group similar kinds of storage into different volumes. For example split "
+"out SSD's or RAM drives into their own volume."
+msgstr ""
+"似たような種類のストレージを、別ボリュームにグループ化する例えば、SSDやRAMド"
+"ライブは独自のボリュームに分割する"
+
+#: ../../reference/configuration/storage.config.en.rst:49
+msgid ""
+"Specify pathnames according to your operating system requirements. See the "
+"following examples. In the :file:`storage.config` file, a formatted or raw "
+"disk must be at least 128 MB."
+msgstr ""
+"オペレーティングシステム要求により、pathnames を指定してください。以下の例を"
+"確認してください。:file:`storage.config` ファイルには、フォーマット済みもし"
+"くはローディスクを、少なくとも 128MB 指定しなければなりません。"
+
+#: ../../reference/configuration/storage.config.en.rst:53
+msgid ""
+"When using raw disk or partitions, you should make sure the :ts:cv:`Traffic "
+"Server user <proxy.config.admin.user_id>` used by the Traffic Server "
+"process has read and write privileges on the raw disk device or partition. "
+"One good practice is to make sure the device file is set with 'g+rw' and "
+"the Traffic Server user is in the group which owns the device file.  "
+"However, some operating systems have stronger requirements - see the "
+"following examples for more information."
+msgstr ""
+"ローディスクやローパーティションを使う場合、Traffic Server プロセス に使用さ"
+"れる:ts:cv:`Traffic Server ユーザ <proxy.config.admin.user_id>` が、ローディ"
+"スクデバイスやローパーティションの読み書きの権限を持っているか確認するべきで"
+"す。ベストプラクティスの一つは、 デバイスファイルに 'g+rw' 権限が付与される"
+"こととTraffic Server ユーザ がデバイスファイルの自身のグループに属しているこ"
+"とを確認することです。しかしながら、幾つかのオペレーティングシステムではより"
+"強い要求があります。更なる情報については、以下の例を確認してください。"
+
+#: ../../reference/configuration/storage.config.en.rst:61
+msgid ""
+"As with standard ``records.config`` integers, human readable prefixes are "
+"also supported. They include"
+msgstr ""
+"標準的な ``records.config`` の数値と同様、ヒューマンリーダブルなプレフィック"
+"スもサポートされています。これらには以下のものを含みます。"
+
+#: ../../reference/configuration/storage.config.en.rst:64
+msgid "``K`` Kilobytes (1024 bytes)"
+msgstr "``K`` キロバイト (1024 バイト)"
+
+#: ../../reference/configuration/storage.config.en.rst:65
+msgid "``M`` Megabytes (1024^2 or 1,048,576 bytes)"
+msgstr "``M`` メガバイト (1024^2 または 1,048,576 バイト)"
+
+#: ../../reference/configuration/storage.config.en.rst:67
+msgid "``T`` Terabytes (1024^4 or 1,099,511,627,776 bytes)"
+msgstr "``T`` テラバイト (1024^4 または 1,099,511,627,776 バイト)"
+
+#: ../../reference/configuration/storage.config.en.rst:71
+msgid "Examples"
+msgstr "設定例"
+
+#: ../../reference/configuration/storage.config.en.rst:73
+msgid ""
+"The following basic example shows 128 MB of cache storage in the ``/"
+"big_dir`` directory::"
+msgstr ""
+"以下に、キャッシュストレージとして ``/big_dir`` ディレクトリで、128MB 使用す"
+"る例を示します。::"
+
+#: ../../reference/configuration/storage.config.en.rst:78
+msgid ""
+"You can use the ``.`` symbol for the current directory. Here is an example "
+"for 64 MB of cache storage in the current directory::"
+msgstr ""
+"``.`` シンボルを使用してカレントディレクトリを用いることもできます。以下に、"
+"カレントディレクトリで 64MB キャッシュストレージを構築する例を示します。::"
+
+#: ../../reference/configuration/storage.config.en.rst:83
+msgid ""
+"As an alternative, using the human readable prefixes, you can express a "
+"64GB cache file with::"
+msgstr ""
+"代わりとして、ヒューマンリーダブルなプレフィックスを使用し、 64GB ファイル"
+"キャッシュを表現できます::"
+
+#: ../../reference/configuration/storage.config.en.rst:90
+msgid ""
+"When using on-filesystem cache disk storage, you can only have one such "
+"directory specified. This will be address in a future version."
+msgstr ""
+"ファイルシステム上のキャッシュディスクストレージを使用する際、指定されたディ"
+"レクトリを一つのみ持てます。これは将来のバージョンで対応される予定です。 "
+
+#: ../../reference/configuration/storage.config.en.rst:95
+msgid "Solaris Example"
+msgstr "Solaris の例"
+
+#: ../../reference/configuration/storage.config.en.rst:97
+msgid "The following example is for the Solaris operating system::"
+msgstr "以下の例は、Solaris オペレーティングシステム用のものです。::"
+
+#: ../../reference/configuration/storage.config.en.rst:102
+msgid "Size is optional. If not specified, the entire partition is used."
+msgstr ""
+"サイズはオプションです。指定されなかった場合、パーティション全体が使用されま"
+"す。"
+
+#: ../../reference/configuration/storage.config.en.rst:105
+msgid "Linux Example"
+msgstr "Linux の例"
+
+#: ../../reference/configuration/storage.config.en.rst:107
+msgid ""
+"The following example will use an entire raw disk in the Linux operating "
+"system::"
+msgstr ""
+"以下の例では、Linux オペレーティングシステムにおいてローディスクを使用しま"
+"す。::"
+
+#: ../../reference/configuration/storage.config.en.rst:113
+msgid ""
+"In order to make sure :program:`traffic_server` will have access to this "
+"disk you can use :manpage:`udev(7)` to persistently set the right "
+"permissions. The following rules are targeted for an Ubuntu system, and "
+"stored in ``/etc/udev/rules.d/51-cache-disk.rules``::"
+msgstr ""
+":program:`traffic_server` がこのディスクへアクセス可能なことを確実にするため"
+"に、:manpage:`udev(7)` を使って永続的に適切なパーミッションを設定することが"
+"できます。以下のルールはUbuntuをターゲットにされており、 ``/etc/udev/rules."
+"d/51-cache-disk.rules`` に保存されます::"
+
+#: ../../reference/configuration/storage.config.en.rst:128
+msgid "FreeBSD Example"
+msgstr "FreeBSD の例"
+
+#: ../../reference/configuration/storage.config.en.rst:130
+msgid ""
+"Starting with 5.1 FreeBSD dropped support for explicit raw devices. All "
+"devices on FreeBSD can be accessed raw now."
+msgstr ""
+"5.1 FreeBSD から、明示的なローデバイスのサポートは終了しました。FreeBSDにお"
+"いて全デバイスは、現在、生でアクセス可能です。"
+
+#: ../../reference/configuration/storage.config.en.rst:133
+msgid ""
+"The following example will use an entire raw disk in the FreeBSD operating "
+"system::"
+msgstr ""
+"以下の例では、FreeBSD オペレーティングシステムでローディスク全体を使用しま"
+"す。::"
+
+#: ../../reference/configuration/storage.config.en.rst:139
+msgid ""
+"In order to make sure :program:`traffic_server` will have access to this "
+"disk you can use :manpage:`devfs(8)` to persistently set the right "
+"permissions. The following rules are stored in :manpage:`devfs.conf(5)`::"
+msgstr ""
+":program:`traffic_server` がこのディスクへアクセス可能なことを確実にするため"
+"に、:manpage:`devfs(8)` を使って永続的に適切なパーミッションを設定することが"
+"できます。以下のルールは、 :manpage:`devfs.conf(5)` に保存されます。 ::"
+
+#: ../../reference/configuration/storage.config.en.rst:66
+msgid "``G`` Gigabytes (1024^3 or 1,073,741,824 bytes)"
+msgstr "``G`` ギガバイト (1024^3 または 1,073,741,824 バイト)"
+
+#: ../../reference/configuration/storage.config.en.rst:122
+msgid ""
+"In order to apply these settings, trigger a reload with :manpage:"
+"`udevadm(8)`:::"
+msgstr ""
+"これらの設定を適用するには、:manpage:`udevadm(8)` で再読み込みを行ってくださ"
+"い::"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/update.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/update.config.en.po
new file mode 100644
index 00000000..295270f3
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/update.config.en.po
@@ -0,0 +1,438 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/update.config.en.rst:20
+msgid "update.config"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:24
+msgid ""
+"The :file:`update.config` file controls how Traffic Server performs a "
+"scheduled update of specific local cache content. The file contains a list "
+"of URLs specifying objects that you want to schedule for update."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:28
+msgid ""
+"A scheduled update performs a local HTTP ``GET`` on the objects at the "
+"specific time or interval. You can control the following parameters for "
+"each specified object:"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:32
+msgid "The URL"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:33
+msgid "URL-specific request headers, which overrides the default"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:34
+msgid "The update time and interval"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:35
+msgid "The recursion depth"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:37
+msgid ""
+"After you modify the :file:`update.config` file, run the :option:"
+"`traffic_line -x` command to apply changes. When you apply changes to one "
+"node in a cluster, Traffic Server automatically applies the changes to all "
+"other nodes in the cluster."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:44
+msgid "Supported Tag/Attribute Pairs"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:46
+msgid ""
+"Scheduled update supports the following tag/attribute pairs when performing "
+"recursive URL updates:"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:49
+msgid "``<a href=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:50
+msgid "``<img src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:51
+msgid "``<img href=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:52
+msgid "``<body background=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:53
+msgid "``<frame src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:54
+msgid "``<iframe src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:55
+msgid "``<fig src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:56
+msgid "``<overlay src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:57
+msgid "``<applet code=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:58
+msgid "``<script src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:59
+msgid "``<embed src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:60
+msgid "``<bgsound src=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:61
+msgid "``<area href=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:62
+msgid "``<base href=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:63
+msgid "``<meta content=\" \">``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:65
+msgid ""
+"Scheduled update is designed to operate on URL sets consisting of hundreds "
+"of input URLs (expanded to thousands when recursive URLs are included); it "
+"is *not* intended to operate on extremely large URL sets, such as those "
+"used by Internet crawlers."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:71
+msgid "Format"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:73
+msgid ""
+"Each line in the :file:`update.config` file uses the following format::"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:77
+msgid "The following list describes each field."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:82
+msgid "*URL*"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:82
+msgid "HTTP-based URLs."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:89
+msgid "*request_headers*"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:87
+msgid ""
+"Optional. A list of headers, separated by semicolons, passed in each "
+"``GET`` request. You can define any request header that conforms to the "
+"HTTP specification; the default is no request header."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:95
+msgid "*offset_hour*"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:94
+msgid ""
+"The base hour used to derive the update periods. The range is 00-23 hours."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:101
+msgid "*interval*"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:100
+msgid ""
+"The interval (in seconds) at which updates should occur, starting at the "
+"offset hour."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:107
+msgid "*recursion_depth*"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:106
+msgid ""
+"The depth to which referenced URLs are recursively updated, starting at the "
+"given URL. This field applies only to HTTP."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:110
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:112
+msgid "An example HTTP scheduled update is provided below:"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:118
+msgid ""
+"The example specifies the URL and request headers, an offset hour of 13 (1 "
+"pm), an interval of one hour, and a recursion depth of 5. This would result "
+"in updates at 13:00, 14:00, 15:00, and so on. To schedule an update that "
+"occurs only once a day, use an interval value 86400 (i.e., 24 hours x 60 "
+"minutes x 60 seconds = 86400)."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:127
+msgid "Specifying URL Regular Expressions (``url_regex``)"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:129
+msgid ""
+"This section describes how to specify a ``url_regex``. Entries of type "
+"``url_regex`` within the configuration files use regular expressions to "
+"perform a match."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:133
+msgid ""
+"The following list provides examples to show how to create a valid "
+"``url_regex``."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:137
+msgid "``x``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:137
+msgid "Matches the character ``x``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:140
+msgid "``.``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:140
+msgid "Match any character"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:143
+msgid "``^``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:143
+msgid "Specifies beginning of line"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:146
+msgid "``$``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:146
+msgid "Specifies end of line"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:150
+msgid "``[xyz]``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:149
+msgid ""
+"A **character class**. In this case, the pattern matches either ``x``, "
+"``y``, or\\ ``z``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:154
+msgid "``[abj-oZ]``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:153
+msgid ""
+"A **character class** with a range. This pattern matches ``a``, ``b``, any "
+"letter from ``j`` through ``o``, or ``Z``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:158
+msgid "``[^A-Z]``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:157
+msgid ""
+"A **negated character class**. For example, this pattern matches any "
+"character except those in the class."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:161
+msgid "``r*``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:161
+msgid "Zero or more ``r``, where ``r`` is any regular expression."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:164
+msgid "``r+``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:164
+msgid "One or more ``r``, where ``r`` is any regular expression."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:167
+msgid "``r?``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:167
+msgid "Zero or one ``r``, where ``r`` is any regular expression."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:170
+msgid "``r{2,5}``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:170
+msgid "From two to five ``r``, where ``r`` is any regular expression."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:173
+msgid "``r{2,}``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:173
+msgid "Two or more ``r``, where ``r`` is any regular expression."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:176
+msgid "``r{4}``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:176
+msgid "Exactly four ``r``, where ``r`` is any regular expression."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:179
+msgid "``\"[xyz]\\\"images\"``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:179
+msgid "The literal string ``[xyz]\"images\"``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:184
+msgid "``\\X``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:182
+msgid ""
+"If ``X`` is ``a, b, f, n, r, t,`` or ``v``, then the ``ANSI-C`` "
+"interpretation of ``\\x``; otherwise, a literal ``X``. This is used to "
+"escape operators such as ``*``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:187
+msgid "``\\0``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:187
+msgid "A ``NULL`` character"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:190
+msgid "``\\123``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:190
+msgid "The character with octal value ``123``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:193
+msgid "``\\x2a``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:193
+msgid "The character with hexadecimal value ``2a``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:197
+msgid "``(r)``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:196
+msgid ""
+"Matches an ``r``, where ``r`` is any regular expression. You can use "
+"parentheses to override precedence."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:201
+msgid "``rs``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:200
+msgid "The regular expression ``r``, followed by the regular expression ``s``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:204
+msgid "``r|s``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:204
+msgid "Either an ``r`` or an ``s``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:208
+msgid "``#<n>#``"
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:207
+msgid ""
+"Inserts an **end node**, which causes regular expression matching to stop "
+"when reached. The value ``n`` is returned."
+msgstr ""
+
+#: ../../reference/configuration/update.config.en.rst:210
+msgid ""
+"You can specify ``dest_domain=mydomain.com`` to match any host in "
+"``mydomain.com``. Likewise, you can specify ``dest_domain=.`` to match any "
+"request."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/configuration/volume.config.en.po b/doc/locale/ja/LC_MESSAGES/reference/configuration/volume.config.en.po
new file mode 100644
index 00000000..7510dc09
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/configuration/volume.config.en.po
@@ -0,0 +1,112 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/configuration/volume.config.en.rst:20
+msgid "volume.config"
+msgstr "volume.config"
+
+#: ../../reference/configuration/volume.config.en.rst:24
+msgid ""
+"The :file:`volume.config` file enables you to manage your cache space more "
+"efficiently and restrict disk usage by creating cache volumes of different "
+"sizes for specific protocols. You can further configure these volumes to "
+"store data from certain origin servers and/or domains in the :file:`hosting."
+"config` file."
+msgstr ""
+":file:`volume.config` ファイルは、特定のプロトコルのために異なったサイズの"
+"キャッシュボリュームを作成することより、キャッシュスペースをより効率的に管理"
+"し、ディスクの使用を制限することを可能にします。更に、 :file:`hosting."
+"config` ファイルで定めたオリジンサーバかつ/またはドメインからのデータを保存"
+"するようにボリュームを設定できます。"
+
+#: ../../reference/configuration/volume.config.en.rst:32
+msgid ""
+"The volume configuration must be the same on all nodes in a cluster. You "
+"must stop Traffic Server before you change the cache volume size and "
+"protocol assignment. For step-by-step instructions about partitioning the "
+"cache, refer to :ref:`partitioning-the-cache`."
+msgstr ""
+"ボリューム設定はクラスターの全ノードで同一にしなければなりません。キャッシュ"
+"ボリュームサイズとプロトコル割当を変更する前に、 Traffic Server を停止しなけ"
+"ればなりません。キャッシュのパーティショニングに関する順を追った説明について"
+"は、 :ref:`partitioning-the-cache` を参照してください。"
+
+#: ../../reference/configuration/volume.config.en.rst:38
+msgid "Format"
+msgstr "フォーマット"
+
+#: ../../reference/configuration/volume.config.en.rst:40
+msgid ""
+"For each volume you want to create, enter a line with the following "
+"format: ::"
+msgstr ""
+"作成したいボリュームごとに、下記のフォーマットで一行追加してください。"
+
+#: ../../reference/configuration/volume.config.en.rst:45
+msgid ""
+"where ``volume_number`` is a number between 1 and 255 (the maximum number "
+"of volumes is 255) and ``protocol_type`` is ``http``. Traffic Server "
+"supports ``http`` for HTTP volume types; ``volume_size`` is the amount of "
+"cache space allocated to the volume. This value can be either a percentage "
+"of the total cache space or an absolute value. The absolute value must be a "
+"multiple of 128 MB, where 128 MB is the smallest value. If you specify a "
+"percentage, then the size is rounded down to the closest multiple of 128 MB."
+msgstr ""
+"``volume_number`` は 1 から 255 （ボリュームの最大数は 255 ）の間の数であ"
+"り、 ``protocol_type`` は ``http`` です。 Traffic Server は HTTP ボリューム"
+"タイプとして ``http`` をサポートします。 ``volume_size`` はボリュームに割り"
+"当てられるキャッシュスペースの量です。この値はキャッシュスペースの合計のパー"
+"センテージもしくは絶対値が指定できます。絶対値は 128MB の倍数でなければなら"
+"ず、 128MB は最小値です。パーセンテージで指定する場合、サイズは最も近い "
+"128MB の倍数に切り捨てられます。"
+
+#: ../../reference/configuration/volume.config.en.rst:54
+msgid ""
+"Each volume is striped across several disks to achieve parallel I/O. For "
+"example: if there are four disks, then a 1-GB volume will have 256 MB on "
+"each disk (assuming each disk has enough free space available). If you do "
+"not allocate all the disk space in the cache, then the extra disk space is "
+"not used. You can use the extra space later to create new volumes without "
+"deleting and clearing the existing volumes."
+msgstr ""
+"各ボリュームは並列に I/O を発行するため幾つかのディスクにまたがって分散され"
+"ます。例えば、四つのディスクがある場合、 1-GB ボリュームは（各ディスクに十分"
+"な使用可能な空き領域があると仮定して）各ディスクで 256MB 持つでしょう。"
+"キャッシュの全ディスクスペースを割り当てない場合、余ったディスクスペースは使"
+"用されません。余ったスペースは後で既存ボリュームの削除やクリア無しに新しいボ"
+"リュームを作成するのに使用出来ます。"
+
+#: ../../reference/configuration/volume.config.en.rst:62
+msgid "Examples"
+msgstr "例"
+
+#: ../../reference/configuration/volume.config.en.rst:64
+msgid ""
+"The following example partitions the cache evenly between HTTP and HTTPS "
+"requests::"
+msgstr "下記の例では HTTP と HTTPS リクエストで均一にキャッシュを分割します。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/authproxy.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/authproxy.en.po
new file mode 100644
index 00000000..5c15fb76
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/authproxy.en.po
@@ -0,0 +1,124 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/authproxy.en.rst:4
+msgid "AuthProxy Plugin"
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:23
+msgid ""
+"There are many ways of authorizing an HTTP request. Often, this requires "
+"making IPC calls to some internal infrastructure. ``AuthProxy`` is a plugin "
+"that takes care of the Traffic Server end of authorizing a request and "
+"delegates the authorization decision to an external HTTP service."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:29
+msgid "This plugin can be used as either a global plugin or a remap plugin."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:31
+msgid ""
+"Note that Traffic Server optimizes latency by skipping the DNS lookup state "
+"if a document is found in the cache. This will have the effect of serving "
+"the document without consulting the ``AuthProxy`` plugin. you can disable "
+"this behavior by setting :ts:cv:`proxy.config.http.doc_in_cache_skip_dns` "
+"to ``0`` in :file:`records.config`."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:39
+msgid "Plugin Options"
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:42
+msgid ""
+"This option specifies how to route the incoming request to the "
+"authorization service. The transform type may be ``head`` or ``redirect``."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:46
+msgid ""
+"If the transform type is ``head``, then the incoming request is transformed "
+"to a HEAD request and is sent to the same destination. If the response is "
+"``200 OK``, the incoming request is allowed to proceed."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:51
+msgid ""
+"If the transform type is ``redirect`` then the incoming request is sent to "
+"the authorization service designated by the `--auth-host` and `--auth-port` "
+"parameters. If the response is 200 OK, the incoming request is allowed to "
+"proceed."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:56
+msgid ""
+"When the authorization service responds with a status other than 200 OK, "
+"that response is returned to the client as the response to the incoming "
+"request. This allows mechanisms such as HTTP basic authentication to work "
+"correctly. Note that the body of the authorization service response is not "
+"returned to the client."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:63
+msgid ""
+"The name or address of the authorization host. This is only used by the "
+"``redirect`` transform."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:67
+msgid ""
+"The TCP port of the authorization host. This is only used by the "
+"``redirect`` transform."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:71
+msgid ""
+"If this options is set, the plugin will allow Traffic Server to cache the "
+"result of authorized requests. In the normal case, requests with "
+"authorization headers are nor cacheable, but this flag allows that by "
+"setting the :ts:cv:`proxy.config.http.cache.ignore_authentication` option "
+"on the request."
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:78
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:80
+msgid ""
+"In this example, the authentication is performed by converting the incoming "
+"HTTP request to a `HEAD` request and sending that to the origin server "
+"`origin.internal.com`::"
+msgstr ""
+
+#: ../../reference/plugins/authproxy.en.rst:87
+msgid ""
+"In this example, the request is directed to a local authentication server "
+"that authorizes the request based on internal policy rules::"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/balancer.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/balancer.en.po
new file mode 100644
index 00000000..6e4af20e
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/balancer.en.po
@@ -0,0 +1,117 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/balancer.en.rst:4
+msgid "Balancer Plugin"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:24
+msgid ""
+"The ``balancer`` balances requests across multiple origin servers. To use "
+"this plugin, configure it in a :file:`remap.config` rule, specifying a "
+"balancing policy and a set of origin servers. For example::"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:31
+msgid ""
+"The ``replacement`` URL in the mapping rule is not used. The argument to "
+"the ``--policy`` option is a comma-separated list of keywords. The first "
+"keyword is the name of a balancing policy. The subsequent keywords are used "
+"to refine the requested policy."
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:37
+msgid "Hash Balancing Policy"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:39
+msgid ""
+"The ``hash`` balancing policy performs a consistent hash across the set of "
+"origins. This minimizes the number of hash entries that must be moved when "
+"the set of origin servers changes. An optional list of hash fields follows "
+"the ``hash`` keyword. Each specified hash field is hashed to select an "
+"outbound origin server."
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:45
+msgid "The following fields can be supplied to the hash:"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:50
+msgid "key"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:48
+msgid ""
+"The request cache key. Note that the cache key will only be set if you have "
+"already chained a plugin that sets a custom cache key."
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:54
+msgid "url"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:53
+msgid ""
+"The request URL. This is the default hash field that is used if no other "
+"fields are specified."
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:57
+msgid "srcaddr"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:57
+msgid "The source IP address of the request."
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:60
+msgid "Round Robin Balancing Policy"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:62
+msgid ""
+"The ``roundrobin`` balancing policy simply allocates requests to origin "
+"servers in order. Over time, the number of requests received by each origin "
+"should be approximately the same."
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:67
+msgid "Health Checking"
+msgstr ""
+
+#: ../../reference/plugins/balancer.en.rst:69
+msgid ""
+"The ``balancer`` plugin does not check the health of the origin servers, "
+"however the plugin is fully reloadable so health checking is usualy simple "
+"to implement. Most production environments already have mechanisms to check "
+"service health. It is recommended that you write a simple script to monitor "
+"this information and rewrite :file:`remap.config` when appropriate. "
+"Running :option:`traffic_line -x` will reload the ``balancer`` plugin with "
+"the new set of origin servers."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/buffer_upload.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/buffer_upload.en.po
new file mode 100644
index 00000000..bda91cf1
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/buffer_upload.en.po
@@ -0,0 +1,132 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/buffer_upload.en.rst:4
+msgid "Buffer Upload Plugin"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:66
+msgid ""
+"All request headers inlcuding cookies plus the entire POST data will be "
+"buffered (either in memory or on disk)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:23
+msgid "The Buffer Upload plugin offers the following features"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:26
+msgid "Installation"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:28
+msgid ""
+"Configuration can be explicitly specified as a parameter in ``plugin."
+"config`` ::"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:33
+msgid ""
+"Memory buffering (buffer the entire POST data in IOBuffer before connecting "
+"to OS)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:35
+msgid ""
+"Memory buffer size is configured with \"mem_buffer_size\" in config file. "
+"Default and minimum value is 32K. You can increase it in the config file. "
+"If the size of a request is larger than the \"mem_buffer_size\" value "
+"specifiied in the config file, then the upload proxy feature will be "
+"disabled for this particular request"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:40
+msgid ""
+"Disk buffering (buffer the entire POST data on disk before connecting to OS)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:42
+msgid ""
+"1. Disk async IO is used. AIO api call only involves certain amount of "
+"threads. The number of threads is configurable in plugin's config file "
+"(default is 4)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:45
+msgid ""
+"2. Directories and files are generated on disk . Base directory is /FOOBAR/"
+"var/buffer_upload_tmp/ (configurable in config file). Number of "
+"subdirectories is 64 (configurable in config file). Filename are randomly "
+"generated. Files will be removed when the entire data have been sent out to "
+"OS . At startup time, dangling files are removed (left on disk due to "
+"transaction interruption or traffic server crash)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:50
+msgid ""
+"Default chunk size when reading from disk is 16K, configurable in config "
+"file"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:53
+msgid "Trigger POST buffering on certain URLs"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:55
+msgid "Certain URLs will be provided in a plain text file (one URL each line)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:56
+msgid "Specify filename in config file by \"url_list_file\""
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:57
+msgid "max length of each URL is 4096 (configurable in config file)"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:58
+msgid "use exact match, don't support regex for now"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:61
+msgid "Other Features"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:63
+msgid ""
+"1. Default buffering mode is disk aio buffering mode. To turn off disk "
+"buffering, add a \"use_disk_buffer 0\" line in config file"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:69
+msgid "Configuration File"
+msgstr ""
+
+#: ../../reference/plugins/buffer_upload.en.rst:71
+msgid "sample config file ::"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/cacheurl.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/cacheurl.en.po
new file mode 100644
index 00000000..5902f43d
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/cacheurl.en.po
@@ -0,0 +1,135 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/cacheurl.en.rst:4
+msgid "CacheURL Plugin"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:31
+msgid "Installation"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:33
+msgid "This plugin is only built if the configure option ::"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:37
+msgid "is given at build time."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:40
+msgid "Configuration"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:54
+msgid ""
+"Start traffic server. Any rewritten URLs will be written to ``cacheurl."
+"log`` in the log directory by default."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:72
+msgid "More docs"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:74
+msgid ""
+"There are some docs on cacheurl in Chinese, please find them in the "
+"following:"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:25
+msgid ""
+"This plugin allows you to change the key that is used for caching a request "
+"by using any portion of the url via regex. It is designed so that multiple "
+"requests that have different URLs but the same content (for example, site "
+"mirrors) need be cached only once."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:42
+msgid ""
+"Create a ``cacheurl.config`` file in the plugin directory with the url "
+"regex patterns to match."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:45
+msgid "``url_pattern   cache_key_replacement``"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:48
+msgid ""
+"The url_pattern is a regular expression (pcre). The replacement can contain "
+"$1, $2 and so on, which will be replaced with the appropriate matching "
+"group from the pattern."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:50
+msgid "Add the plugin to your :file:`plugin.config` file::"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:58
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:59
+msgid ""
+"To make files from s1.example.com, s2.example.com and s3.example.com all be "
+"cached with the same key. Adding a unique suffix (TSINTERNAL in this "
+"example) to the cache key guarantees that it won't clash with a real URL "
+"should s.example.com exist."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:61
+msgid "``http://s[123].example.com/(.*)  http://s.example.com.TSINTERNAL/$1``"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:63
+msgid ""
+"Cache based on only some parts of a query string (e.g. ignore session "
+"information). This plucks out the id and format query string variables and "
+"only considers those when making the cache key."
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:65
+msgid ""
+"``http://www.example.com/video\\?.*?\\&?(id=[0-9a-f]*).*?\\&(format=[a-z]*) "
+"http://video-srv.example.com.ATSINTERNAL/$1&$2``"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:67
+msgid "Completely ignore a query string for a specific page"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:69
+msgid ""
+"``http://www.example.com/some/page.html(?:\\?|$) http://www.example.com/"
+"some/page.html``"
+msgstr ""
+
+#: ../../reference/plugins/cacheurl.en.rst:78
+msgid "https://blog.zymlinux.net/index.php/archives/195"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/combo_handler.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/combo_handler.en.po
new file mode 100644
index 00000000..f74ad515
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/combo_handler.en.po
@@ -0,0 +1,108 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/combo_handler.en.rst:4
+msgid "Combohandler Plugin"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:24
+msgid ""
+"This plugin provides an intelligent way to combine multiple URLs into a "
+"single URL, and have Apache Traffic Server combine the components into one "
+"response. This is useful for example to create URLs that combine multiple "
+"CSS or Javascript files into one."
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:30
+msgid "Installation"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:32
+msgid "This plugin is only built if the configure option ::"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:36
+msgid ""
+"is given at build time. Note that this plugin is built and installed in "
+"combination with the ESI module, since they share common code."
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:40
+msgid "Configuration"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:44
+msgid ""
+"The path that should triggers combo handler (defaults to \"admin/v1/combo\")"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:47
+msgid ""
+"The name of the key used for signature verification (disabled by default)"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:50
+msgid ""
+"A \"-\" can be supplied as a value for any of these arguments to request "
+"default value be applied."
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:53
+msgid ""
+"Also, just like the original combohandler, this plugin generates URLs of "
+"the form ``http://localhost/<dir>/<file-path>``. ``<dir>`` here defaults to "
+"``l`` unless specified by the file path in the query parameter using a "
+"colon. For example::"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:60
+msgid "Will result in these three pages being fetched::"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:66
+msgid ""
+"Remap rules have to be specified to map the above URLs to desired content "
+"servers."
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:69
+msgid ""
+"The plugin also supports a prefix parameter. Common parts of successive "
+"file paths can be extracted and specified separately using a 'p' query "
+"parameter. Successive file path parameters are appended to this prefix to "
+"create complete file paths. The prefix will remain active until changed or "
+"cleared (set to an empty string). For example, the query ::"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:77
+msgid "results in these file paths being \"reconstructed\"::"
+msgstr ""
+
+#: ../../reference/plugins/combo_handler.en.rst:42
+msgid "The arguments in the :file:`plugin.config` line in order represent"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/conf_remap.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/conf_remap.en.po
new file mode 100644
index 00000000..a6f62586
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/conf_remap.en.po
@@ -0,0 +1,83 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2014-01-11 23:16+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/conf_remap.en.rst:21
+msgid "conf_remap Plugin"
+msgstr "conf_remap プラグイン"
+
+#: ../../reference/plugins/conf_remap.en.rst:23
+msgid ""
+"The `conf_remap` plugin allows you to override configuration directives "
+"dependent on actual remapping rules. The plugin is built and installed as "
+"part of the normal Apache Traffic Server installation process."
+msgstr ""
+"`conf_remap` プラグインは実際の remap ルールに応じて設定ディレクティブを上書"
+"きすることを可能にします。このプラグインは通常の Apache Traffic Server のイ"
+"ンストールプロセスの一部としてビルドされ、インストールされています。"
+
+#: ../../reference/plugins/conf_remap.en.rst:49
+msgid ""
+"Doing this, you will override your global default configuration on a per "
+"mapping rule. For more details on the APIs, functionality, and a complete "
+"list of all overridable configurations, see :ref:`ts-overridable-config`."
+msgstr ""
+"これを行うことにより、グローバルなデフォルト設定をマッピングルール毎に上書き"
+"することができます。API 、機能そしてすべての上書き可能な設定の完全な一覧につ"
+"いては :ref:`ts-overridable-config` を参照してください。"
+
+#: ../../reference/plugins/conf_remap.en.rst:28
+msgid ""
+"The `conf_remap` plugin accepts configuration directives in the arguments "
+"list or in a separate configuration file. In both cases, only string and "
+"integer directives are supported."
+msgstr ""
+"`conf_remap` プラグインは引数リストもしくは分割された設定ファイル内の設定"
+"ディレクティブを受け付けます。どちらのケースも文字列と整数のディレクティブが"
+"サポートされています。"
+
+#: ../../reference/plugins/conf_remap.en.rst:32
+msgid ""
+"When using a separate configuration file, the standard :file:`records."
+"config` syntax is used, for example::"
+msgstr ""
+"分割された設定ファイルを使用するときは、:file:`records.config` の標準構文が"
+"使用されます。例::"
+
+#: ../../reference/plugins/conf_remap.en.rst:38
+msgid "where `cdn.conf` contains::"
+msgstr "`cdn.conf` には以下の設定が書かれています::"
+
+#: ../../reference/plugins/conf_remap.en.rst:42
+msgid ""
+"When using inline arguments, the `conf_remap` plugin accepts a "
+"``key=value`` syntax, where the ``KEY`` is the name of the configuration "
+"directive and ``VALUE`` is the desired value, for example::"
+msgstr ""
+"インラインの引数を使用するときは、`conf_remap` は ``key=value`` の構文を"
+"受け付け、``KEY`` は設定ディレクティブの名前、``VALUE`` は指定したい値と"
+"なります。例::"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/esi.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/esi.en.po
new file mode 100644
index 00000000..255bad75
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/esi.en.po
@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/esi.en.rst:4
+msgid "ESI Plugin (undocumented)"
+msgstr ""
+
+#: ../../reference/plugins/esi.en.rst:24
+msgid "This plugin implements the ESI specification."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/geoip_acl.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/geoip_acl.en.po
new file mode 100644
index 00000000..44241023
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/geoip_acl.en.po
@@ -0,0 +1,116 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/geoip_acl.en.rst:4
+msgid "GeoIP ACLs Plugin"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:23
+msgid ""
+"This is a simple ATS plugin for denying (or allowing) requests based on the "
+"source IP geo-location. Currently only the Maxmind APIs are supported, but "
+"we'd be happy to other other (open) APIs if you let us know. This plugin "
+"comes with the standard distribution of Apache Traffic Server, and should "
+"be installed as part of the normal build process."
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:31
+msgid "Configuration"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:33
+msgid ""
+"Once installed, there are three primary use cases, which we will discuss in "
+"details. Note that in all configurations, the first plugin parameter must "
+"specify what the matches should be applied to. Currently, only one rule set "
+"is supported, for Country ISO codes. This is specified with a parameter "
+"of ::"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:41
+msgid ""
+"Future additions to this plugin could include other regions, such as city, "
+"state, continent etc."
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:44
+msgid "The three typical use cases are as follows:"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:46
+msgid ""
+"Per remap configurations, applicable to the entire remap rule. This is "
+"useful when you can partition your content so that entire prefix paths "
+"should be filtered. For example, lets assume that http://example.com/music "
+"is restricted to US customers only, and everything else is world wide "
+"accessible. In remap.config, you would have something like ::"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:57
+msgid ""
+"If you can not partition the data with a path prefix, you can specify a "
+"separate regex mapping filter. The remap.config file might then look like ::"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:65
+msgid ""
+"where music.regex is a format with PCRE (perl compatible) regular "
+"expressions, and unique rules for match. E.g.::"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:71
+msgid ""
+"Note that the default in the case of no matches on the regular expressions "
+"is to \"allow\" the request. This can be overriden, see next use case."
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:75
+msgid ""
+"You can also combine 1) and 2), and provide defaults in the remap.config "
+"configuration, which then applies for the cases where no regular "
+"expressions matches at all. This would be useful to override the default "
+"which is to allow all requests that don't match. For example ::"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:85
+msgid ""
+"This tells the plugin that in the situation where there is no matching "
+"regular expression, only allow requests originating from the US."
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:88
+msgid "Finally, there's one additional parameter option that can be used ::"
+msgstr ""
+
+#: ../../reference/plugins/geoip_acl.en.rst:92
+msgid ""
+"This will override the default reponse body for the denied responses with a "
+"custom piece of HTML. This can be useful to explain to your users why they "
+"are getting denied access to a particular piece of content. This "
+"configuration can be used with any of the use cases described above."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/gzip.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/gzip.en.po
new file mode 100644
index 00000000..cd607490
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/gzip.en.po
@@ -0,0 +1,156 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/gzip.en.rst:4
+msgid "gzip / deflate Plugin"
+msgstr "gzip / deflate プラグイン"
+
+#: ../../reference/plugins/gzip.en.rst:24
+msgid ""
+"This plugin gzips or deflates responses, whichever is applicable. It can "
+"compress origin respones as well as cached responses. The plugin is built "
+"and installed as part of the normal Apache Traffic Server installation "
+"process."
+msgstr ""
+"このプラグインはレスポンスに gzip または deflate の適用可能なほうを行いま"
+"す。オリジンのレスポンスをキャッシュ済みのレスポンスと同様に圧縮します。この"
+"プラグインは通常の Apache Traffic Server のインストール処理でビルドされイン"
+"ストールされます。"
+
+#: ../../reference/plugins/gzip.en.rst:30
+msgid "Installation"
+msgstr "インストール"
+
+#: ../../reference/plugins/gzip.en.rst:36
+msgid "In this case, the plugin will use the default behaviour:"
+msgstr "このケースでは、プラグインはデフォルトの振る舞いをします"
+
+#: ../../reference/plugins/gzip.en.rst:38
+msgid "Enable caching"
+msgstr "キャッシュの有効化"
+
+#: ../../reference/plugins/gzip.en.rst:39
+msgid "Compress text/\\* for every origin"
+msgstr "すべてのオリジンで text/\\* を圧縮"
+
+#: ../../reference/plugins/gzip.en.rst:40
+msgid ""
+"Don't hide accept encoding from origin servers (for an offloading reverse "
+"proxy)"
+msgstr ""
+"( リバースプロキシーの負荷軽減のために ) オリジンサーバーに受け付けるエン"
+"コーディングを隠しません"
+
+#: ../../reference/plugins/gzip.en.rst:42
+msgid "No urls are disallowed from compression"
+msgstr "どの URL も圧縮を拒否されません"
+
+#: ../../reference/plugins/gzip.en.rst:45
+msgid "Configuration"
+msgstr "設定"
+
+#: ../../reference/plugins/gzip.en.rst:47
+msgid "Alternatively, a configuration can also be specified::"
+msgstr "もしくは、設定を指定することも可能です。"
+
+#: ../../reference/plugins/gzip.en.rst:51
+msgid ""
+"After modifying plugin.cofnig, restart traffic server (sudo traffic_line -"
+"L) the configuration is re-read when a management update is given (sudo "
+"traffic_line -x)"
+msgstr ""
+"plugin.config を修正後、Traffic Server をリスタート (sudo traffic_line -L) "
+"設定ファイルは管理アップデートが行われた際に再読み込みされます。(sudo "
+"traffic_line -x)"
+
+#: ../../reference/plugins/gzip.en.rst:56
+msgid "Options"
+msgstr "オプション"
+
+#: ../../reference/plugins/gzip.en.rst:58
+msgid "Flags and options are:"
+msgstr "フラグとオプションは次のとおりです。"
+
+#: ../../reference/plugins/gzip.en.rst:60
+msgid ""
+"``enabled``: (``true`` or ``false``) Enable or disable compression for a "
+"host."
+msgstr ""
+"``enabled``: (``true`` または ``false``) ホストに対する圧縮を有効化または無"
+"効化します。"
+
+#: ../../reference/plugins/gzip.en.rst:63
+msgid ""
+"``remove-accept-encoding``: (``true`` or ``false``) Sets whether the plugin "
+"should hide the accept encoding from origin servers:"
+msgstr ""
+"``remove-accept-encoding``: (``true`` または ``false``) プラグインが受け付け"
+"るエンコーディングをオリジンサーバーに隠すべきかどうかを設定します。"
+
+#: ../../reference/plugins/gzip.en.rst:66
+msgid "To ease the load on the origins."
+msgstr "オリジンの負荷を軽くするために。"
+
+#: ../../reference/plugins/gzip.en.rst:67
+msgid ""
+"For when the proxy parses responses, and the resulting compression/"
+"decompression is wasteful."
+msgstr ""
+"プロキシーがレスポンスをパースする際に、圧縮/展開が無駄になるときのために。"
+
+#: ../../reference/plugins/gzip.en.rst:70
+msgid ""
+"``cache``: (``true`` or ``false``) When set, the plugin stores the "
+"uncompressed and compressed response as alternates."
+msgstr ""
+"``cache``: (``true`` または ``false``) 設定すると、プラグインは圧縮されてい"
+"ないレスポンスと圧縮されたレスポンスを代替として保存します。"
+
+#: ../../reference/plugins/gzip.en.rst:73
+msgid ""
+"``compressible-content-type``: Wildcard pattern for matching compressible "
+"content types."
+msgstr ""
+"``compressible-content-type``: 圧縮できるコンテントタイプのワイルドカードパ"
+"ターン"
+
+#: ../../reference/plugins/gzip.en.rst:76
+msgid "``disallow``: Wildcard pattern for disabling compression on urls."
+msgstr "``disallow``: 圧縮を無効化する URL のワイルドカードパターン。"
+
+#: ../../reference/plugins/gzip.en.rst:78
+msgid "Options can be set globally or on a per-site basis, as such::"
+msgstr "オプションはこのように大域的にもサイト毎にも設定できます。"
+
+#: ../../reference/plugins/gzip.en.rst:92
+msgid "See example.gzip.config for example configurations."
+msgstr "設定例については example.gzip.config を見てください。"
+
+#: ../../reference/plugins/gzip.en.rst:32
+msgid "Add the following line to :file:`plugin.config`::"
+msgstr "次の行を :file:`plugin.config` に追加してください。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/header_filter.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/header_filter.en.po
new file mode 100644
index 00000000..9cb6cd52
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/header_filter.en.po
@@ -0,0 +1,151 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/header_filter.en.rst:4
+msgid "Header Filter Plugin"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:34
+msgid ""
+"Or, alternatively, in a ```per-remap`` <../../configuration-files/remap."
+"config>`_ rule configuration ::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:40
+msgid ""
+"Even if you don't have a global configuration, if your remap rules "
+"schedules actions in hooks other than during remap, you must also add the "
+"``header_filter.so`` to the ```plugin.config`` <../../configuration-files/"
+"remap.config>`_ (see above), but without args::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:48
+msgid "The configuration files looks like ::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:65
+msgid ""
+"Comments are prefixed with ``#``, and in most cases, the regular expression "
+"matching is the best choice (very little overhead). The pattern matches can "
+"also take an option '``!``\\ ' to reverse the test. The default action is "
+"to delete all headers that do (not) match the pattern. E.g.::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:75
+msgid ""
+"The final \"``i``\\ \" qualifier (works on all pattern matches) forces the "
+"match or comparison to be made case insensitive (just like in Perl)."
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:78
+msgid ""
+"It's also possible to replace or add headers, using the = and + operators. "
+"For example ::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:85
+msgid ""
+"This will force the Host: header to have exactly one value, ``www.example."
+"com``, while ``X-Foo`` will have at least one header with the value ATS, "
+"but there could be more instances of the header from the existing header in "
+"the request."
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:90
+msgid "Possible hooks are ::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:97
+msgid ""
+"If not specified, the default hook to add the rules (headers to filter) is "
+"``READ_REQUEST_HDR``. It's completely acceptable (and useful) to configure "
+"a remap rule to delete headers in a later hook (e.g. when reading a "
+"response from the server). This is what actually makes the plugin even "
+"remotely useful."
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:105
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:108
+msgid "Set X-Forwarded-Proto https on SSL connections"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:110
+msgid ""
+"Often times a backend wants to know whether it's running under HTTP or "
+"HTTPS. While not regulated standard, we can use the ``X-Forwarded-Proto`` "
+"header for this purpose."
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:114
+msgid ""
+"In ```plugin.config`` <../../configuration-files/plugin.config>`_ we need "
+"to add::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:119
+msgid ""
+"Then, in ```remap.config`` <../../configuration-files/remap.config>`_ we "
+"can configure ``header_filter`` on a case by case basis::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:125
+msgid ""
+"The configuration that ties everything together is then ``/etc/"
+"trafficserver/x_fwd_proto.config``, to which we add::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:131
+msgid ""
+"To activate this configuration, we need to restart Traffic Server with :"
+"option:`traffic_line -L`."
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:134
+msgid ""
+"In the backend servers we can now pick this up and do appropriately set "
+"server variables that will be picked up by CGI programs for instance. In "
+"the case of Apache httpd backend, this can be acomplished with "
+"```mod_setenvif`` <http://httpd.apache.org/docs/current/mod/mod_setenvif."
+"html#setenvif>`_::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:28
+msgid ""
+"The ``header_filter`` is a simple plugin for filtering out headers from "
+"requests (or responses). Typical configuration is done either with a global "
+"configuration, in :file:`plugin.config`::"
+msgstr ""
+
+#: ../../reference/plugins/header_filter.en.rst:24
+msgid ""
+"Use :ref:`header-rewrite-plugin` instead, it provides the same, and more, "
+"functionality."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/header_rewrite.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/header_rewrite.en.po
new file mode 100644
index 00000000..be37fc5f
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/header_rewrite.en.po
@@ -0,0 +1,176 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/header_rewrite.en.rst:4
+msgid "Header Rewrite Plugin"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:24
+msgid ""
+"This is a plugin for Apache Traffic Server that allows you to modify "
+"various headers based on defined rules (operations) on a request or "
+"response. Currently, only one operation is supported."
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:29
+msgid "Using the plugin"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:31
+msgid ""
+"This plugin can be used as both a global plugin, enabled in plugin.config::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:35
+msgid ""
+"These are global rules, which would apply to all requests. Another option "
+"is to use per remap rules in remap.config::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:40
+msgid ""
+"In the second example, hooks which are not to be executed during the remap "
+"phase (the default) causes a transaction hook to be instantiated and used "
+"at a later time. This allows you to setup e.g. a rule that gets executed "
+"during the origin response header parsing, using READ_RESPONSE_HDR_HOOK."
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:46
+msgid "Operators"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:48
+msgid "The following operators are available::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:63
+msgid "Where qual is one of the support URL qualifiers::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:70
+msgid "For example (as a remap rule)::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:76
+msgid "Operator flags"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:84
+msgid "Variable expansion"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:85
+msgid ""
+"Currently only limited variable expansion is supported in add-header. "
+"Supported substitutions include::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:96
+msgid "Conditions"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:97
+msgid ""
+"The conditions are used as qualifiers: The operators specified will only be "
+"evaluated if the condition(s) are met::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:117
+msgid ""
+"The difference between HEADER and CLIENT-HEADER is that HEADER adapts to "
+"the hook it's running in, whereas CLIENT-HEADER always applies to the "
+"client request header. The %{TRUE} condition is also the default condition "
+"if no other conditions are specified."
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:122
+msgid ""
+"These conditions have to be first in a ruleset, and you can only have one "
+"in each rule. This implies that a new hook condition starts a new rule as "
+"well.::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:131
+msgid ""
+"For remap.config plugin instanations, the default hook is named "
+"REMAP_PSEUDO_HOOK. This can be useful if you are mixing other hooks in a "
+"configuration, but being the default it is also optional."
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:137
+msgid "Condition flags"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:149
+msgid "Operands to conditions"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:157
+msgid "The absence of a \"matcher\" means value exists)."
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:160
+msgid "Values"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:161
+msgid "Setting e.g. a header with a value can take the following formats:"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:163
+msgid "Any of the cond definitions, that extracts a value from the request"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:164
+msgid "$N 0 <= N <= 9, as grouped in a regular expression"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:165
+msgid "string (which can contain the above)"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:166
+msgid "null"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:169
+msgid "Examples"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:78
+msgid ""
+"The operator flags are optional, and must not contain whitespaces inside "
+"the brackets. Currently, only one flag is supported::"
+msgstr ""
+
+#: ../../reference/plugins/header_rewrite.en.rst:139
+msgid ""
+"The condition flags are optional, and you can combine more than one into a "
+"comma separated list of flags. Note that whitespaces are not allowed inside "
+"the brackets::"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/hipes.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/hipes.en.po
new file mode 100644
index 00000000..631ce26a
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/hipes.en.po
@@ -0,0 +1,212 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/hipes.en.rst:27
+msgid "Configuration"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:31
+msgid "``urlp:<name>``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:30
+msgid "Default: ``url`` Name of the query parameter for the service URL"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:35
+msgid "``path:<path>``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:34
+msgid "Default: ``/`` Path to use for the service URL"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:39
+msgid "``ssl``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:38
+msgid "Default: ``no`` Use SSL when connecting to the service"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:42
+msgid "``service``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:42
+msgid "Service server, ``host[:port]``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:46
+msgid "``server``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:45
+msgid "Default: ``hipes.yimg.com`` Name of HIPES server, ``host[:port]``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:49
+msgid "``active_timeout``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:49
+msgid "The active connection timeout in ms"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:52
+msgid "``no_activity_timeout``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:52
+msgid "The no activity timeout in ms"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:55
+msgid "``connect_timeout``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:55
+msgid "The connect timeout in ms"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:58
+msgid "``dns_timeout``"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:58
+msgid "The DNS timeout"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:4
+msgid "HIPES plugin"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:24
+msgid "This is a remap plugin used in the HIPES system."
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:60
+msgid ""
+"The timeout options override the server defaults (from ```records."
+"config``), and only apply to the connection to the specific \"service\" "
+"host."
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:65
+msgid "Notes on HIPES"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:67
+msgid ""
+"HTTP Pipes (aka HIPES and pronounced \"Hippies\") allows data services to "
+"be pipelined together, as illustrated by the example below."
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:71
+msgid "Example"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:72
+msgid ""
+"ATS is run on port 80 and apache HTTP web server is run on port 8080 on "
+"localhost (127.0.0.1)"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:74
+msgid "The HIPES plugin is used in ``remap.config`` ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:80
+msgid "The plugin remaps the incoming URL such as ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:84
+msgid "to the following ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:88
+msgid ""
+"The service ``svc_reverse.php`` fetches the ``url`` from the ATS again and "
+"the plugin remaps the URL ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:92
+msgid "to this URL ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:96
+msgid ""
+"5. In this example, the service ``svc_case.php`` fetches and transforms the "
+"response of ``http://127.0.0.1/test.txt`` (which ATS proxies the request to "
+"a local file) to upper case. And subsequently the service ``svc_reverse."
+"php`` receives the response and reverse the order before the response is "
+"sent back to the client by ATS."
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:101
+msgid "Notes on reducing traffic"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:103
+msgid ""
+"There can be significant overhead using HIPES because the data can traverse "
+"through ATS many times. Caching can be important to reduce traffic to "
+"services/through ATS and can be achieved via a proper ``Cache-Control`` "
+"header returned by the services. Another way to reduce traffic through ATS "
+"is to have ATS to return 302 redirects to url for the requests made by "
+"service, instead of proxying the requests to that url. However, the service "
+"must then be able to follow the redirect. The down side is that we cannot "
+"use ATS to cache intermediate results. Below is an example of using "
+"redirect."
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:111
+msgid "Modification to above example to reduce traffic using redirect"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:113
+msgid ""
+"1. The service ``svc_reverse.php`` is modified to add a header of ``X-HIPES-"
+"Redirect: 2`` to the request made against ``url``."
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:116
+msgid ""
+"HIPES plugin will instruct ATS to return a redirect response to this url ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:120
+msgid "for the following request ::"
+msgstr ""
+
+#: ../../reference/plugins/hipes.en.rst:124
+msgid ""
+"3.  The service ``svc_reverse.php`` is also modified to follow the "
+"redirect. Thus the response of the service of ``svc_case.php`` will not "
+"pass through ATS and will pass to ``svc_reverse.php`` service instead."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/index.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/index.en.po
new file mode 100644
index 00000000..596e46fc
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/index.en.po
@@ -0,0 +1,86 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: 2013-11-16 15:34+0900\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/index.en.rst:2
+msgid "Plugin Reference"
+msgstr "プラグインリファレンス"
+
+#: ../../reference/plugins/index.en.rst:22
+msgid "Overview"
+msgstr "概要"
+
+#: ../../reference/plugins/index.en.rst:24
+msgid ""
+"One of the key features of Apache Traffic Server is modularity. Features "
+"that aren't needed in the core simply aren't there. This is a good thing, "
+"because it guarantees that our core can remain fast by concentrating on the "
+"things that we always provide: Caching and proxying."
+msgstr ""
+"Apache Traffic Server の重要な機能の一つはモジュール性です。コアに不要な機能"
+"はコアの中には存在しません。これは良いことです。なぜならば、それはコアが常に"
+"提供するキャッシュとプロキシーに集中することにより、速い状態を保つことができ"
+"るからです。"
+
+#: ../../reference/plugins/index.en.rst:30
+msgid ""
+"All other things can be moved into plugins, by opening up a consistent C "
+"API, everyone can implement their own functionality, without having to "
+"touch the core."
+msgstr ""
+"他の全てのことはプラグインに移すことができます。安定した C API を使うことに"
+"より、コアに触ること無く、誰でも独自の機能を実装することができます。"
+
+#: ../../reference/plugins/index.en.rst:35
+msgid "Stable plugins"
+msgstr "安定したプラグイン"
+
+#: ../../reference/plugins/index.en.rst:37
+msgid ""
+"Plugins that are considered stable are installed by default in Apache "
+"Traffic Server releases."
+msgstr ""
+"安定的なプラグインです。これらは Apache Traffic Server のリリースにデフォル"
+"トでインストールされれています。"
+
+#: ../../reference/plugins/index.en.rst:52
+msgid "Experimental plugins"
+msgstr "実験的なプラグイン"
+
+#: ../../reference/plugins/index.en.rst:54
+msgid ""
+"Plugins that are considered experimental are located in the `plugins/"
+"experimental <https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;"
+"a=tree;f=plugins/experimental;hb=HEAD>`_ directory of the Apache Traffic "
+"Server source tree. Exmperimental plugins can be compiled by passing the `--"
+"enable-experimental-plugins` option to `configure`::"
+msgstr ""
+"実験的なプラグインです。 Apache Traffic Server ソースツリーの `plugins/"
+"experimental <https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;"
+"a=tree;f=plugins/experimental;hb=HEAD>`_ ディレクトリにあります。実験的プラ"
+"グインは `configure` を実行する際に `--enable-experimental-plugins` オプショ"
+"ンをつけることでコンパイルされます。"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/metalink.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/metalink.en.po
new file mode 100644
index 00000000..4ea64cb0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/metalink.en.po
@@ -0,0 +1,163 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/metalink.en.rst:21
+msgid "Metalink plugin"
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:23
+msgid ""
+"The `metalink` plugin implements the `Metalink <http://en.wikipedia.org/"
+"wiki/Metalink>`_ protocol in order to try not to download the same file "
+"twice. This improves cache efficiency and speeds up user downloads."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:28
+msgid ""
+"Take standard headers and knowledge about objects in the cache and "
+"potentially rewrite those headers so that a client will use a URL that is "
+"already cached instead of one that isn't."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:32
+msgid ""
+"The `metalink` headers are specified in :rfc:`6429` and :rfc:`3230` and are "
+"sent by various download redirectors or content distribution networks."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:36
+msgid ""
+"A lot of download sites distribute the same files from many different "
+"mirrors and users don't know which mirrors are already cached. These sites "
+"often present users with a simple download button, but the button doesn't "
+"predictably access the same mirror, or a mirror that is already cached. To "
+"users it seems like the download works sometimes (takes seconds) and not "
+"others (takes hours), which is frustrating."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:43
+msgid ""
+"An extreme example of this happens when users share a limited, possibly "
+"unreliable internet connection, as is common in parts of Africa for example."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:48
+msgid "How it works"
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:50
+msgid ""
+"When the `metalink` plugin sees a response with a ``Location: ...`` header "
+"and a ``Digest: SHA-256=...`` header, it checks to see if the URL in the "
+"Location header is already cached. If it isn't, then it tries to find a URL "
+"that is cached to use instead. It looks in the cache for some object that "
+"matches the digest in the Digest header and if it finds something, then it "
+"rewites the ``Location`` header with the URL from that object."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:58
+msgid ""
+"That way a client should get sent to a URL that's already cached and the "
+"user won't end up downloading the file again."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:62
+msgid "Installation"
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:64
+msgid ""
+"`metalink` is a global plugin. It is enabled by adding it to your :file:"
+"`plugin.config` file. There are no options."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:68
+msgid "Implementation Status"
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:70
+msgid ""
+"The `metalink` plugin implements the ``TS_HTTP_SEND_RESPONSE_HDR_HOOK`` "
+"hook to check and potentially rewrite the ``Location: ...`` and ``Digest: "
+"SHA-256=...`` headers after responses are cached. It doesn't do it before "
+"they're cached because the contents of the cache can change after responses "
+"are cached.  It uses :c:func:`TSCacheRead` to check if the URL in the "
+"``Location: ...`` header is already cached. In future, the plugin should "
+"also check if the URL is fresh or not."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:79
+msgid ""
+"The plugin implements ``TS_HTTP_READ_RESPONSE_HDR_HOOK`` and a null "
+"transform to compute the SHA-256 digest for content as it's added to the "
+"cache, then uses :c:func:`TSCacheWrite` to associate the digest with the "
+"request URL. This adds a new cache object where the key is the digest and "
+"the object is the request URL."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:85
+msgid ""
+"To check if the cache already contains content that matches a digest, the "
+"plugin must call :c:func:`TSCacheRead` with the digest as the key, read the "
+"URL stored in the resultant object, and then call :c:func:`TSCacheRead` "
+"again with this URL as the key. This is probably inefficient and should be "
+"improved."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:91
+msgid ""
+"An early version of the plugin scanned ``Link: <...>; rel=duplicate`` "
+"headers. If the URL in the ``Location: ...`` header was not already cached, "
+"it scanned ``Link: <...>; rel=duplicate`` headers for a URL that was. The "
+"``Digest: SHA-256=...`` header is superior because it will find content "
+"that already exists in the cache in every case that a ``Link: <...>; "
+"rel=duplicate`` header would, plus in cases where the URL is not listed "
+"among the ``Link: <...>; rel=duplicate`` headers, maybe because the content "
+"was downloaded from a URL not participating in the content distribution "
+"network, or maybe because there are too many mirrors to list in ``Link: <..."
+">; rel=duplicate`` headers."
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:103
+msgid ""
+"The ``Digest: SHA-256=...`` header is also more efficient than ``Link: <..."
+">; rel=duplicate`` headers because it involves a constant number of cache "
+"lookups. :rfc:`6249` requires a ``Digest: SHA-256=...`` header or ``Link: "
+"<...>; rel=duplicate`` headers MUST be ignored:"
+msgstr ""
+
+#: ../../reference/plugins/metalink.en.rst:108
+msgid ""
+"If Instance Digests are not provided by the Metalink servers, the Link "
+"header fields pertaining to this specification MUST be ignored."
+msgstr ""
+
+msgid ""
+"Metalinks contain whole file hashes as described in Section 6, and MUST "
+"include SHA-256, as specified in [FIPS-180-3]."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/mysql_remap.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/mysql_remap.en.po
new file mode 100644
index 00000000..185a5fde
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/mysql_remap.en.po
@@ -0,0 +1,122 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/mysql_remap.en.rst:4
+msgid "MySQL Remap Plugin"
+msgstr "MySQL リマッププラグイン"
+
+#: ../../reference/plugins/mysql_remap.en.rst:24
+msgid ""
+"This is a basic plugin for doing dynamic \"remaps\" from a database. It "
+"essentially rewrites the incoming request's Host header / origin server "
+"connection to one retrieved from a database."
+msgstr ""
+"これはデータベースをもとに動的な\"リマップ\"を行うための基本的なプラグインで"
+"す。本質的には届いたリクエストの Host ヘッダーを書き換えます / オリジンサー"
+"バーの接続をデータベースから取得したものに。"
+
+#: ../../reference/plugins/mysql_remap.en.rst:28
+msgid "The generic proxying setup is the following::"
+msgstr "一般的なプロキシーのセットアップは次のとおりです ::"
+
+#: ../../reference/plugins/mysql_remap.en.rst:32
+msgid "Without the plugin a request like::"
+msgstr "このプラグインを使わない場合のリクエストはこの様になります ::"
+
+#: ../../reference/plugins/mysql_remap.en.rst:37
+msgid "Ends up requesting ``http://original.host.com/path/to/something``"
+msgstr ""
+"最終的には ``http://original.host.com/path/to/something`` にリクエストしま"
+"す。"
+
+#: ../../reference/plugins/mysql_remap.en.rst:39
+msgid ""
+"With this plugin enabled, you can easily change that to anywhere you "
+"desire. Imagine the many possibilities...."
+msgstr ""
+"このプラグインを有効化すると、どこでも望んだ場所に簡単に変更できます。多くの"
+"可能性を想像してください...."
+
+#: ../../reference/plugins/mysql_remap.en.rst:42
+msgid ""
+"We have benchmarked the plugin with ab at about 9200 requests/sec (1.7k "
+"object) on a commodity hardware with a local setup of both, MySQL and "
+"Traffic Server local. Real performance is likely to be substantially "
+"higher, up to the MySQL's max queries / second."
+msgstr ""
+"私たちは ab でこのプラグインのベンチマークを行い、汎用のハードウェアに "
+"MySQL と Traffic Server をどちらもローカルにセットアップした環境で 約 9200 "
+"リクエスト / 秒 (1.7k オブジェクト ) となりました。実際のパフォーマンスは十"
+"分に高く、MySQL の最大クエリー / 秒次第です。"
+
+#: ../../reference/plugins/mysql_remap.en.rst:48
+msgid "Installation"
+msgstr "インストール"
+
+#: ../../reference/plugins/mysql_remap.en.rst:50
+msgid "This plugin is only built if the configure option ::"
+msgstr "このプラグインはビルド時の設定オプションに ::"
+
+#: ../../reference/plugins/mysql_remap.en.rst:54
+msgid "is given at build time."
+msgstr "が与えられている場合にのみビルドされます。"
+
+#: ../../reference/plugins/mysql_remap.en.rst:57
+msgid "Configuration"
+msgstr "設定"
+
+#: ../../reference/plugins/mysql_remap.en.rst:59
+msgid "Import the default schema to a database you create::"
+msgstr "作成したデータベースへのデフォルトスキーマを取り込みます ::"
+
+#: ../../reference/plugins/mysql_remap.en.rst:64
+msgid ""
+"insert some interesting values in mysql_remap.hostname & mysql_remap.map"
+msgstr "mysql_remap.hostname と mysql_remap.map に興味深い値を入れます"
+
+#: ../../reference/plugins/mysql_remap.en.rst:67
+msgid ""
+"Traffic Server plugin configuration is done inside a global configuration "
+"file: ``/etc/trafficserver/plugin.config``::"
+msgstr ""
+"Traffic Server プラグイン設定はグローバル設定ファイル :file: ``/etc/"
+"trafficserver/plugin.config`` で完了します ::"
+
+#: ../../reference/plugins/mysql_remap.en.rst:72
+msgid "The INI file should contain the following values::"
+msgstr "INI ファイルは次の値を含むべきです ::"
+
+#: ../../reference/plugins/mysql_remap.en.rst:85
+msgid "And resolve any errors or warnings displayed."
+msgstr "そして表示されたエラーや警告を解決してください。"
+
+#: ../../reference/plugins/mysql_remap.en.rst:81
+msgid "To debug errors, start trafficserver manually using::"
+msgstr ""
+"エラーをデバッグするために、Traffic Server を手動で次のように開始してくだ"
+"さい::"
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/regex_remap.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/regex_remap.en.po
new file mode 100644
index 00000000..9a417133
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/regex_remap.en.po
@@ -0,0 +1,153 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/regex_remap.en.rst:4
+msgid "Regex Remap Plugin"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:24
+msgid ""
+"This allows you to configure mapping rules based on regular expressions. "
+"This is similar to what you can accomplish using mod_rewrite in Apache "
+"httpd, but obviously not as flexible or sophisticated (yet)."
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:28
+msgid "To use this plugin, configure a remap.config rule like ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:42
+msgid ""
+"An optional argument (``@pparam``) with the string \"``profile``\\ \" will "
+"enable profiling of this regex remap rule, e.g. ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:47
+msgid ""
+"Profiling is very low overhead, and the information is dumped to ``traffic."
+"out``, located in the log directory. This information is useful to optimize "
+"the order of your regular expression, such that the most common matches "
+"appears early in the file. In order to force a profile dump, you can do ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:56
+msgid ""
+"By default, only the path and query string of the URL are provided for the "
+"regular expressions to match. The following optional parameters can be used "
+"to modify the plugin instance behavior ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:64
+msgid ""
+"If you wish to match on the HTTP method used (e.g. \"``GET``\\ \"), you "
+"must use the option ``@pparam=method``. e.g. ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:69
+msgid ""
+"With this enabled, the string that you will need to match will look like ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:74
+msgid ""
+"The methods are always all upper-case, and always followed by one single "
+"space. There is no space between the method and the rest of the URL (or URI "
+"path)."
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:78
+msgid ""
+"By default, the query string is part of the string that is matched again, "
+"to turn this off use the option 'no-query-string', e.g. ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:83
+msgid ""
+"Finally, you can also include the matrix parameters in the string, using "
+"the option 'matrix-parameters', e.g. ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:88
+msgid "A typical regex would look like ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:92
+msgid "The regular expression must not contain any white spaces!"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:94
+msgid ""
+"When the regular expression is matched, only the URL path + query string is "
+"matched (without any of the optional configuration options). The path will "
+"always start with a \"/\". Various substitution strings are allowed on the "
+"right hand side during evaluation ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:118
+msgid ""
+"You can also provide options, similar to how you configure your remap."
+"config. The following options are available ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:127
+msgid ""
+"This can be useful to force a particular response for some URLs, e.g. ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:131
+msgid "Or, to force a 302 redirect ::"
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:135
+msgid ""
+"Setting the status to 301 or 302 will force the new URL to be used as a "
+"redirect (Location:)."
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:32
+msgid ""
+"The file name parameter is always required. Unless an absolute path is "
+"specified, the file name is assumed to be a path relative to the Traffic "
+"Server configuration directory."
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:36
+msgid ""
+"The regular expressions listed in the configuration file are evaluated "
+"sequentially. When a regular expression is positively matched against a "
+"request URL, evaluation is stopped and the rewrite rule is applied. If none "
+"of the regular expressions are a match, the default destination URL is "
+"applied (``http://b.com`` in the example above)."
+msgstr ""
+
+#: ../../reference/plugins/regex_remap.en.rst:114
+msgid ""
+"The ``$0`` substitution expands to the characters that were matched by the "
+"regular expression, not to the entire string that the regular expression "
+"was matched against."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/stale_while_revalidate.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/stale_while_revalidate.en.po
new file mode 100644
index 00000000..4e20fd38
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/stale_while_revalidate.en.po
@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/stale_while_revalidate.en.rst:4
+msgid "Stale While Revalidate Plugin (undocumented)"
+msgstr ""
+
+#: ../../reference/plugins/stale_while_revalidate.en.rst:23
+msgid "refresh content asynchronously while serving stale data"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/stats_over_http.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/stats_over_http.en.po
new file mode 100644
index 00000000..76a3c9fe
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/stats_over_http.en.po
@@ -0,0 +1,66 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/stats_over_http.en.rst:4
+msgid "Stats over HTTP Plugin"
+msgstr ""
+
+#: ../../reference/plugins/stats_over_http.en.rst:24
+msgid ""
+"This plugin implements an HTTP interface to all Traffic Server statistics. "
+"The metrics returned are in a JSON format, for easy processing. This plugin "
+"is now part of the standard ATS build process, and should be available "
+"after install."
+msgstr ""
+
+#: ../../reference/plugins/stats_over_http.en.rst:28
+msgid "To enable this plugin, add to the plugin.conf file::"
+msgstr ""
+
+#: ../../reference/plugins/stats_over_http.en.rst:33
+msgid ""
+"After starting Traffic Server, the JSON metrics are now available on the "
+"default URL::"
+msgstr ""
+
+#: ../../reference/plugins/stats_over_http.en.rst:39
+msgid ""
+"where host and port is the hostname/IP and port number of the server. You "
+"can optionally modify the path to use, and this is highly recommended in a "
+"public facing server. For example::"
+msgstr ""
+
+#: ../../reference/plugins/stats_over_http.en.rst:46
+msgid "and the URL would then be e.g.::"
+msgstr ""
+
+#: ../../reference/plugins/stats_over_http.en.rst:51
+msgid ""
+"This is weak security at best, since the secret could possibly leak if you "
+"are careless and send it over clear text."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/ts_lua.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/ts_lua.en.po
new file mode 100644
index 00000000..adae62ec
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/ts_lua.en.po
@@ -0,0 +1,470 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/ts_lua.en.rst:4
+msgid "ts-lua Plugin"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:24
+msgid "Embed the Power of Lua into TrafficServer."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:27
+msgid "Status"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:29
+msgid "This module is being tested under our production environment."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:32
+msgid "Version"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:34
+msgid "ts-lua has not been released yet."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:37
+msgid "Synopsis"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:39
+msgid "**test_hdr.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:65
+msgid "**test_transform.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:103
+msgid "**test_cache_lookup.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:136
+msgid "**test_ret_403.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:163
+msgid "**sethost.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:192
+msgid "**test_intercept.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:220
+msgid "**test_server_intercept.lua**"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:247
+msgid "Description"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:249
+msgid ""
+"This module embeds Lua, via the standard Lua 5.1 interpreter, into Apache "
+"Traffic Server. This module acts as remap plugin of Traffic Server, so we "
+"should realize **'do_remap'** function in each lua script. We can write "
+"this in remap.config:::"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:253
+msgid ""
+"Sometimes we want to receive parameters and process them in the script, we "
+"should realize **'\\__init__'** function in the lua script(sethost.lua is a "
+"reference), and we can write this in remap.config:::"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:260
+msgid "TS API for Lua"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:263
+msgid "Introduction"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:265
+msgid ""
+"The API is exposed to Lua in the form of one standard packages ts. This "
+"package is in the default global scope and is always available within lua "
+"script."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:270
+msgid "ts.now"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:271
+msgid "**syntax**: *val = ts.now()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:273
+#: ../../reference/plugins/ts_lua.en.rst:289
+#: ../../reference/plugins/ts_lua.en.rst:393
+msgid "**context**: global"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:275
+msgid ""
+"**description**: This function returns the time since the Epoch (00:00:00 "
+"UTC, January 1, 1970), measured in seconds."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:277
+#: ../../reference/plugins/ts_lua.en.rst:293
+#: ../../reference/plugins/ts_lua.en.rst:314
+#: ../../reference/plugins/ts_lua.en.rst:346
+#: ../../reference/plugins/ts_lua.en.rst:369
+#: ../../reference/plugins/ts_lua.en.rst:409
+#: ../../reference/plugins/ts_lua.en.rst:425
+#: ../../reference/plugins/ts_lua.en.rst:453
+#: ../../reference/plugins/ts_lua.en.rst:481
+#: ../../reference/plugins/ts_lua.en.rst:567
+msgid "Here is an example:::"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:286
+msgid "ts.debug"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:287
+msgid "**syntax**: *ts.debug(MESSAGE)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:291
+msgid "**description**: Log the MESSAGE to traffic.out if debug is enabled."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:300
+msgid "The debug tag is ts_lua and we should write this in records.config:::"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:306
+msgid "ts.hook"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:307
+msgid "**syntax**: *ts.hook(HOOK_POINT, FUNCTION)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:309
+#: ../../reference/plugins/ts_lua.en.rst:326
+#: ../../reference/plugins/ts_lua.en.rst:342
+#: ../../reference/plugins/ts_lua.en.rst:421
+#: ../../reference/plugins/ts_lua.en.rst:449
+#: ../../reference/plugins/ts_lua.en.rst:477
+#: ../../reference/plugins/ts_lua.en.rst:495
+#: ../../reference/plugins/ts_lua.en.rst:514
+#: ../../reference/plugins/ts_lua.en.rst:523
+#: ../../reference/plugins/ts_lua.en.rst:541
+#: ../../reference/plugins/ts_lua.en.rst:563
+msgid "**context**: do_remap or later"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:311
+msgid ""
+"**description**: Hooks are points in http transaction processing where we "
+"can step in and do some work. FUNCTION will be called when the http "
+"transaction steps in to HOOK_POINT."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:325
+msgid "Hook point constants"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:328
+msgid ""
+"TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE TS_LUA_HOOK_SEND_REQUEST_HDR "
+"TS_LUA_HOOK_READ_RESPONSE_HDR TS_LUA_HOOK_SEND_RESPONSE_HDR "
+"TS_LUA_REQUEST_TRANSFORM TS_LUA_RESPONSE_TRANSFORM"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:335
+msgid "These constants are usually used in ts.hook method call."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:339
+msgid "ts.ctx"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:340
+msgid "**syntax**: *ts.ctx[KEY]*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:344
+msgid ""
+"**description**: This table can be used to store per-request Lua context "
+"data and has a life time identical to the current request."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:362
+msgid "ts.http.get_cache_lookup_status"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:363
+msgid "**syntax**: *ts.http.get_cache_lookup_status()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:365
+msgid "**context**: function @ TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE hook point"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:367
+msgid "**description**: This function can be used to get cache lookup status."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:392
+msgid "Http cache lookup status constants"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:395
+msgid ""
+"TS_LUA_CACHE_LOOKUP_MISS (0) TS_LUA_CACHE_LOOKUP_HIT_STALE (1) "
+"TS_LUA_CACHE_LOOKUP_HIT_FRESH (2) TS_LUA_CACHE_LOOKUP_SKIPPED (3)"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:402
+msgid "ts.http.set_cache_url"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:403
+msgid "**syntax**: *ts.http.set_cache_url(KEY_URL)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:405
+#: ../../reference/plugins/ts_lua.en.rst:505
+#: ../../reference/plugins/ts_lua.en.rst:532
+#: ../../reference/plugins/ts_lua.en.rst:550
+msgid "**context**: do_remap"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:407
+msgid ""
+"**description**: This function can be used to modify the cache key for the "
+"request."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:418
+msgid "ts.http.resp_cache_transformed"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:419
+msgid "**syntax**: *ts.http.resp_cache_transformed(BOOL)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:423
+msgid ""
+"**description**: This function can be used to tell trafficserver whether to "
+"cache the transformed data."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:442
+#: ../../reference/plugins/ts_lua.en.rst:470
+msgid ""
+"This function is usually called after we hook TS_LUA_RESPONSE_TRANSFORM."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:446
+msgid "ts.http.resp_cache_untransformed"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:447
+msgid "**syntax**: *ts.http.resp_cache_untransformed(BOOL)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:451
+msgid ""
+"**description**: This function can be used to tell trafficserver whether to "
+"cache the untransformed data."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:474
+msgid "ts.client_request.client_addr.get_addr"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:475
+msgid "**syntax**: *ts.client_request.client_addr.get_addr()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:479
+msgid ""
+"**description**: This function can be used to get socket address of the "
+"client."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:488
+msgid ""
+"The ts.client_request.client_addr.get_addr function returns three values, "
+"ip is a string, port and family is number."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:492
+msgid "ts.client_request.get_method"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:493
+msgid "**syntax**: *ts.client_request.get_method()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:497
+msgid ""
+"**description**: This function can be used to retrieve the current "
+"request's request method name. String like \"GET\" or \"POST\" is returned."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:502
+msgid "ts.client_request.set_method"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:503
+msgid "**syntax**: *ts.client_request.set_method(METHOD_NAME)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:507
+msgid ""
+"**description**: This function can be used to override the current "
+"request's request method with METHOD_NAME."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:511
+msgid "ts.client_request.get_url"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:512
+msgid "**syntax**: *ts.client_request.get_url()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:516
+msgid ""
+"**description**: This function can be used to retrieve the whole request's "
+"url."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:520
+msgid "ts.client_request.get_uri"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:521
+msgid "**syntax**: *ts.client_request.get_uri()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:525
+msgid ""
+"**description**: This function can be used to retrieve the request's path."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:529
+msgid "ts.client_request.set_uri"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:530
+msgid "**syntax**: *ts.client_request.set_uri(PATH)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:534
+msgid ""
+"**description**: This function can be used to override the request's path."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:538
+msgid "ts.client_request.get_uri_args"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:539
+msgid "**syntax**: *ts.client_request.get_uri_args()*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:543
+msgid ""
+"**description**: This function can be used to retrieve the request's query "
+"string."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:547
+msgid "ts.client_request.set_uri_args"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:548
+msgid "**syntax**: *ts.client_request.set_uri_args(QUERY_STRING)*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:552
+msgid ""
+"**description**: This function can be used to override the request's query "
+"string."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:556
+msgid "ts.client_request.header.HEADER"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:557
+msgid "**syntax**: *ts.client_request.header.HEADER = VALUE*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:559
+msgid "**syntax**: *ts.client_request.header[HEADER] = VALUE*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:561
+msgid "**syntax**: *VALUE = ts.client_request.header.HEADER*"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:565
+msgid ""
+"**description**: Set, add to, clear or get the current request's HEADER."
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:576
+msgid "TODO"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:579
+msgid "Short Term"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:580
+msgid "document configuration"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:581
+msgid "non-blocking I/O operation"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:582
+msgid "ts.fetch"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:585
+msgid "Long Term"
+msgstr ""
+
+#: ../../reference/plugins/ts_lua.en.rst:586
+msgid "ts.regex"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/reference/plugins/xdebug.en.po b/doc/locale/ja/LC_MESSAGES/reference/plugins/xdebug.en.po
new file mode 100644
index 00000000..5330cc68
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/reference/plugins/xdebug.en.po
@@ -0,0 +1,79 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2014-01-15 22:31+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../reference/plugins/xdebug.en.rst:4
+msgid "XDebug Plugin"
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:23
+msgid ""
+"The `XDebug` plugin allows HTTP clients to debug the operation of the "
+"Traffic Server cache using the ``X-Debug`` header. The plugin is triggered "
+"by the presence of the ``X-Debug`` header in the client request. The "
+"contents of this header should be the names of the debug headers that are "
+"desired in the response. The `XDebug` plugin will remove the ``X-Debug`` "
+"header from the client request and inject the desired headers into the "
+"client response."
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:31
+msgid ""
+"`XDebug` is a global plugin. It is installed by adding it to the :file:"
+"`plugin.config` file."
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:35
+msgid "Debugging Headers"
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:37
+msgid ""
+"The `XDebug` plugin is able to generate the following debugging headers:"
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:42
+msgid "Via"
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:40
+msgid ""
+"If the ``Via`` header is requested, the `XDebug` plugin sets the :ts:cv:"
+"`proxy.config.http.insert_response_via_str` configuration variable to ``3`` "
+"for the request."
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:46
+msgid "X-Cache-Key"
+msgstr ""
+
+#: ../../reference/plugins/xdebug.en.rst:45
+msgid ""
+"The ``X-Cache-Key`` contains the URL that identifies the HTTP object in the "
+"Traffic Server cache. This header is particularly useful if a custom cache "
+"key is being used."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/actions-guide.en.po b/doc/locale/ja/LC_MESSAGES/sdk/actions-guide.en.po
new file mode 100644
index 00000000..37215377
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/actions-guide.en.po
@@ -0,0 +1,119 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/actions-guide.en.rst:2
+msgid "Actions Guide"
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:28
+msgid "Actions"
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:30
+msgid ""
+"An **action** is a handle to an operation initiated by a plugin that has "
+"not yet completed. For example: when a plugin connects to a remote server, "
+"it uses the call ``TSNetConnect`` - which takes ``TSCont`` as an argument "
+"to call back when the connection is established. ``TSNetConnect`` might not "
+"call the continuation back immediately and will return an ``TSAction`` "
+"structure that the caller can use to cancel the operation. Cancelling the "
+"operation does not necessarily mean that the operation will not occur; it "
+"simply means that the continuation passed into the operation will not be "
+"called back. In such an example, the connection might still occur if the "
+"action is cancelled; however, the continuation that initiated the "
+"connection would not be called back."
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:42
+msgid ""
+"In the preceding example, it is also possible that the connection will "
+"complete and call back the continuation before ``TSNetConnect`` returns. If "
+"that occurs, then ``TSNetConnect`` returns a special action that causes "
+"``TSActionDone`` to return ``1``. This specifies that the operation has "
+"already completed, so it's pointless to try to cancel the operation. Also "
+"note that an action will never change from non-completed to completed. When "
+"the operation actually succeeds and the continuation is called back, the "
+"continuation must zero out its action pointer to indicate to itself that "
+"the operation succeeded."
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:52
+msgid ""
+"The asynchronous nature of all operations in Traffic Server necessitates "
+"actions. You should notice from the above discussion that once a call to a "
+"function like ``TSNetConnect`` is made by a continuation and that function "
+"returns a valid action (``TSActionDone`` returns ``0``), it is not safe for "
+"the continuation to do anything else except return from its handler "
+"function. It is not safe to modify or examine the continuation's data "
+"because the continuation may have already been destroyed."
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:60
+msgid "Below is an example of typical usage for an action:"
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:104
+msgid ""
+"The example above shows a simple plugin that creates a continuation and "
+"then schedules it to be called immediately. When the plugin's handler "
+"function is called the first time, the event is ``TS_EVENT_IMMEDIATE``. The "
+"plugin then tries to open a net connection to port 9999 on ``localhost`` "
+"(127.0.0.1). The IP description was left in cider notation to further "
+"clarify what is going on; also note that the above won't actually compile "
+"until the IP address is modified. The action returned from ``TSNetConnect`` "
+"is examined by the plugin. If the operation has not completed, then the "
+"plugin stores the action in its continuation. Otherwise, the plugin knows "
+"it has already been called back and there is no reason to store the action "
+"pointer."
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:116
+msgid ""
+"A final question might be, \"why would a plugin want to cancel an action?\" "
+"In the above example, a valid reason could be to place a limit on the "
+"length of time it takes to open a connection. The plugin could schedule "
+"itself to get called back in 30 seconds and then initiate the net "
+"connection. If the timeout expires first, then the plugin would cancel the "
+"action. The following sample code implements this:"
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:176
+msgid "The action functions are:"
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:178
+msgid ""
+"```TSActionCancel`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a5d49a6addcc9dbdc7f339ee6b73ac0b6>`__"
+msgstr ""
+
+#: ../../sdk/actions-guide.en.rst:179
+msgid ""
+"```TSActionDone`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#abe189274ad59911f2a57d345d11bfecb>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/actions-guide/hosts-lookup-api.en.po b/doc/locale/ja/LC_MESSAGES/sdk/actions-guide/hosts-lookup-api.en.po
new file mode 100644
index 00000000..c86f8405
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/actions-guide/hosts-lookup-api.en.po
@@ -0,0 +1,53 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/actions-guide/hosts-lookup-api.en.rst:2
+msgid "Hosts Lookup API"
+msgstr ""
+
+#: ../../sdk/actions-guide/hosts-lookup-api.en.rst:21
+msgid ""
+"The hosts lookup enables plugins to ask Traffic Server to do a host lookup "
+"of a host name, much like a DNS lookup."
+msgstr ""
+
+#: ../../sdk/actions-guide/hosts-lookup-api.en.rst:24
+msgid "The hosts lookup functions are as follows:"
+msgstr ""
+
+#: ../../sdk/actions-guide/hosts-lookup-api.en.rst:26
+msgid ""
+"```TSHostLookup`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#ab5bf6eea0ed883e5dc69253965935d12>`__"
+msgstr ""
+
+#: ../../sdk/actions-guide/hosts-lookup-api.en.rst:27
+msgid ""
+"```TSHostLookupResultAddrGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#aecac0767192746af1867f528e01d167b>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics.en.po b/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics.en.po
new file mode 100644
index 00000000..516a4f98
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics.en.po
@@ -0,0 +1,87 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/adding-statistics.en.rst:2
+msgid "Adding Statistics"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:21
+msgid ""
+"This chapter describes how to add statistics to your plugins. Statistics "
+"can be coupled or uncoupled; **coupled** statistics are quantities that are "
+"related and must therefore be updated together. The Traffic Server API "
+"statistics functions add your plugin's statistics to the Traffic Server "
+"statistics system. You can view your plugin statistics as you would any "
+"other Traffic Server statistic, using Traffic Line (Traffic Server's "
+"command line interface). This chapter contains the following topics:"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:38
+msgid "Uncoupled Statistics"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:40
+msgid ""
+"A statistic is an object of type ``TSStat``. The value of the statistic is "
+"of type ``TSStatType``. The possible ``TSStatTypes`` are:"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:43
+msgid "``TSSTAT_TYPE_INT64``"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:45
+msgid "``TSSTAT_TYPE_FLOAT``"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:47
+msgid "There is *no* ``TSSTAT_TYPE_INT32``."
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:49
+msgid "To add uncoupled statistics, follow the steps below:"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:51
+msgid ""
+"Declare your statistic as a global variable in your plugin. For example:"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:58
+msgid ""
+"In ``TSPluginInit``, create new statistics using ``TSStatCreate``. When you "
+"create a new statistic, you need to give it an \"external\" name that the "
+"Traffic Server command line interface (Traffic Line) uses to access the "
+"statistic. For example:"
+msgstr ""
+
+#: ../../sdk/adding-statistics.en.rst:67
+msgid ""
+"Modify (increment, decrement, or other modification) your statistic in "
+"plugin functions."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics/coupled-statistics.en.po b/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics/coupled-statistics.en.po
new file mode 100644
index 00000000..796cec36
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics/coupled-statistics.en.po
@@ -0,0 +1,130 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:2
+msgid "Coupled Statistics"
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:21
+msgid ""
+"Use coupled statistics for quantities that are related and therefore must "
+"be updated jointly."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:24
+msgid ""
+"As a very simple example, suppose you have three statistics: ``sum``, "
+"``part_1``, and ``part_2``. They must always preserve the relationship that "
+"``sum = part_1  + part_2``. If you update ``part_1`` without updating "
+"``sum`` at the same time, then the equation becomes untrue. Therefore, the "
+"statistics are said to be *coupled*."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:30
+msgid ""
+"The mechanism for updating coupled statistics jointly is to create local "
+"copies of global coupled statistics in the routines that modifiy them. When "
+"each local copy is updated appropriately, do a global update using "
+"``TSStatsCoupledUpdate``. To specify which statistics are related to one "
+"another, establish a coupled statistic category and make sure that each "
+"coupled statistic belongs to the appropriate category. When it is time to "
+"do the global update, specify the category to be updated."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:40
+msgid ""
+"The local statistic copy must have a duplicate set of statistics as that of "
+"the master copy. Local statistics must also be added to the local statistic "
+"category in the same order as their master copy counterparts were "
+"originally added."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:45
+msgid ""
+"Below are the steps you need to follow, along with a code example taken "
+"from the ``redirect-1.c`` sample plugin."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:49
+msgid "To add coupled statistics:"
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:51
+msgid ""
+"Declare the global category for your coupled statistics as a global "
+"``TSCoupledStat`` variable in your plugin."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:54
+msgid ""
+"Declare your coupled statistics as global ``TSStat`` variables in your "
+"plugin."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:57
+msgid ""
+"In ``TSPluginInit``, create a new global coupled category using "
+"``TSStatCoupledGlobalCategoryCreate``."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:60
+msgid ""
+"In ``TSPluginInit``, create new global coupled statistics using "
+"``TSStatCoupledGlobalAdd``. When you create a new statistic, you need to "
+"give it an \"external\" name that the Traffic Server command line interface "
+"(Traffic Line) uses to access the statistic."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:65
+msgid ""
+"In any routine wherein you want to modify (increment, decrement, or other "
+"modification) your coupled statistics, declare local copies of the coupled "
+"category and coupled statistics."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:69
+msgid ""
+"Create local copies using ``TSStatCoupledLocalCopyCreate`` and "
+"``TSStatCoupledLocalAdd``."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:72
+msgid ""
+"Modify the local copies of your statistics. Then call "
+"``TSStatsCoupledUpdate`` to update the global copies jointly."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:75
+msgid ""
+"When you are finished, you must destroy all of the local copies in the "
+"category via ``TSStatCoupledLocalCopyDestroy``."
+msgstr ""
+
+#: ../../sdk/adding-statistics/coupled-statistics.en.rst:79
+msgid "Example Using the redirect-1.c Sample Plugin"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics/viewing-statistics-using-traffic-line.en.po b/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics/viewing-statistics-using-traffic-line.en.po
new file mode 100644
index 00000000..f2b6bd15
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/adding-statistics/viewing-statistics-using-traffic-line.en.po
@@ -0,0 +1,50 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst:2
+msgid "Viewing Statistics Using Traffic Line"
+msgstr ""
+
+#: ../../sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst:23
+msgid "To view statistics for your plugin, follow the steps below:"
+msgstr ""
+
+#: ../../sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst:25
+msgid ""
+"Make sure you know the name of your statistic (i.e., the name used in the "
+"``TSStatCoupledGlobalAdd``, ``TSStatCreate``, or "
+"``TSStatCoupledGlobalCategoryCreate`` call)."
+msgstr ""
+
+#: ../../sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst:29
+msgid "In your ``<Traffic Server>/bin`` directory, enter the following:"
+msgstr ""
+
+#: ../../sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst:31
+msgid "::::text ./traffic\\_line -r the\\_name"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/continuations.en.po b/doc/locale/ja/LC_MESSAGES/sdk/continuations.en.po
new file mode 100644
index 00000000..6b479512
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/continuations.en.po
@@ -0,0 +1,176 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/continuations.en.rst:2
+msgid "Continuations"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:27
+msgid ""
+"The continuation interface is Traffic Server's basic callback mechanism. "
+"**Continuations** are instances of the opaque data type ``TSCont``. In its "
+"basic form, a continuation represents a handler function and a mutex."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:32
+msgid "This chapter covers the following topics:"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:41
+msgid "Mutexes and Data"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:43
+msgid ""
+"A continuation must be created with a mutex if your continuation does one "
+"of the following:"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:46
+msgid ""
+"is registered globally (``TSHttpHookAdd`` or ``TSHttpSsnHookAdd``) to an "
+"HTTP hook and uses ``TSContDataSet/Get``"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:49
+msgid ""
+"is registered locally (``TSHttpTxnHookAdd``), but for multiple transactions "
+"uses ``TSContDataSet/Get``"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:52
+msgid ""
+"uses ``TSCacheXXX``, ``TSNetXXX``, ``TSHostLookup``, or ``TSContSchedule`` "
+"APIs"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:66
+msgid ""
+"A reentrant call occurs when the continuation passed as an argument to the "
+"API can be called in the same stack trace as the function calling the API. "
+"For example, if you call ``TSCacheRead`` (``contp, mykey``), it is possible "
+"that ``contp``'s handler will be called directly and then ``TSCacheRead`` "
+"returns."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:72
+msgid "Caveats that could cause issues include the following:"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:74
+msgid "a continuation has data associated with it (``TSContDataGet``)."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:76
+msgid "\\*"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:77
+msgid "the reentrant call passes itself as a continuation to the reentrant"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:78
+msgid ""
+"API. In this case, the continuation should not try to access its data after "
+"calling the reentrant API. The reason for this is that data may be modified "
+"by the section of code in the continuation's handler that handles the event "
+"sent by the API. It is recommended that you always return after a reentrant "
+"call to avoid accessing something that has been deallocated."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:85
+msgid "Below is an example, followed by an explanation."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:102
+msgid ""
+"The above example first assumes that the continuation is called back with "
+"``event1``; it then does the first reentrant call that schedules the "
+"continuation to receive ``event2``. Because the call is reentrant, the "
+"processor calls back the continuation right away with ``event2`` and the "
+"continuation is destroyed. If you try to access the continuation or one of "
+"its members after the reentrant call, then you might access something that "
+"has been deallocated. To avoid accessing something that has been "
+"deallocated, never access the continuation or any of its members after a "
+"reentrant call - just exit the handler."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:112
+msgid ""
+"**Note:** Most HTTP transaction plugin continuations do not need non-null "
+"mutexes because they're called within the processing of an HTTP "
+"transaction, and therefore have the transaction's mutex."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:116
+msgid ""
+"It is also possible to specify a continuation's mutex as ``NULL``. This "
+"should be done only when registering a continuation to a global hook, by a "
+"call to ``TSHttpHookAdd``. In this case, the continuation can be called "
+"simultaneously by different instances of HTTP SM running on different "
+"threads. Having a mutex here would slow and/or hinder Traffic Server "
+"performance, since all the threads will try to lock the same mutex. The "
+"drawback of not having a mutex is that such a continuation cannot have data "
+"associated with it (i.e., ``TSContDataGet/Set`` cannot be used)."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:126
+msgid ""
+"When using a ``NULL`` mutex it is dangerous to access the continuation's "
+"data, but usually continuations with ``NULL`` mutexes have no data "
+"associated with them anyway. An example of such a continuation is one that "
+"gets called back every time an HTTP request is read, and then determines "
+"from the request alone if the request should go through or be rejected. An "
+"HTTP transaction gives its continuation data to the ``contp``."
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:34
+msgid "`Mutexes and Data`_"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:36
+msgid ":doc:`continuations/how-to-activate-continuations.en`"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:38
+msgid ":doc:`continuations/writing-handler-functions.en`"
+msgstr ""
+
+#: ../../sdk/continuations.en.rst:55
+msgid ""
+"Before being activated, a caller must grab the continuation's mutex. This "
+"requirement makes it possible for a continuation's handler function to "
+"safely access its data and to prevent multiple callers from running it at "
+"the same time (see the :ref:`about-the-sample-protocol` for usage). The "
+"data protected by the mutex is any global or continuation data associated "
+"to the continuation by ``TSContDataSet``. This does not include the local "
+"data created by the continuation handler function. A typical example of "
+"continuations created with associated data structures and mutexes is the "
+"transaction state machine created in the sample Protocol plugin (see :ref:"
+"`one-way-to-implement-a-transaction-state-machine`)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/continuations/how-to-activate-continuations.en.po b/doc/locale/ja/LC_MESSAGES/sdk/continuations/how-to-activate-continuations.en.po
new file mode 100644
index 00000000..245342b9
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/continuations/how-to-activate-continuations.en.po
@@ -0,0 +1,56 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/continuations/how-to-activate-continuations.en.rst:2
+msgid "How to Activate Continuations"
+msgstr ""
+
+#: ../../sdk/continuations/how-to-activate-continuations.en.rst:21
+msgid ""
+"Continuations are activated when they receive an event or by "
+"``TSContSchedule`` (which schedules a continuation to receive an event). "
+"Continuations might receive an event because:"
+msgstr ""
+
+#: ../../sdk/continuations/how-to-activate-continuations.en.rst:25
+msgid "Your plugin calls ``TSContCall``"
+msgstr ""
+
+#: ../../sdk/continuations/how-to-activate-continuations.en.rst:27
+msgid ""
+"The Traffic Server HTTP state machine sends an event corresponding to a "
+"particular HTTP hook"
+msgstr ""
+
+#: ../../sdk/continuations/how-to-activate-continuations.en.rst:30
+msgid ""
+"A Traffic Server IO processor (such as a cache processor or net processor) "
+"is letting a continuation know there is data (cache or network) available "
+"to read or write. These callbacks are a result of using functions such "
+"``TSVConnRead``/``Write`` or ``TSCacheRead``/``Write``"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/continuations/writing-handler-functions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/continuations/writing-handler-functions.en.po
new file mode 100644
index 00000000..70f57fd9
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/continuations/writing-handler-functions.en.po
@@ -0,0 +1,403 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:2
+msgid "Writing Handler Functions"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:21
+msgid ""
+"The handler function is the key component of a continuation. It is supposed "
+"to examine the event and event data, and then do something appropriate. The "
+"probable action might be to schedule another event for the continuation to "
+"received, to open up a connection to a server, or simply to destroy itself."
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:27
+msgid ""
+"The continuation's handler function is a function of type ``TSEventFunc``. "
+"Its arguments are a continuation, an event, and a pointer to some data "
+"(this data is passed to the continuation by the caller - do not confuse "
+"this data with the continuation's own data, associated by "
+"``TSContDataSet``). When the continuation is called back, the continuation "
+"and an event are passed to the handler function. The continuation is a "
+"handle to the same continuation that is invoked. The handler function "
+"typically has a switch statement to handle the events it receives:"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:59
+msgid ""
+"You might notice that a continuation cannot determine if more events are "
+"\"in flight\" toward it. Do not use ``TSContDestroy`` to delete a "
+"continuation before you make sure that all incoming events, such as those "
+"sent because of ``TSHttpTxnHookAdd``, have been handled."
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:64
+msgid ""
+"The following table lists events and the corresponding type of ``void* "
+"data`` passed to handler functions:"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:68
+msgid "Event"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:68
+msgid "Event Sender"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:68
+msgid "Data Type"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:70
+msgid "``TS_EVENT_HTTP_READ_REQUEST_HDR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:70
+msgid "``TS_HTTP_READ_REQUEST_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:70
+#: ../../sdk/continuations/writing-handler-functions.en.rst:71
+#: ../../sdk/continuations/writing-handler-functions.en.rst:72
+#: ../../sdk/continuations/writing-handler-functions.en.rst:73
+#: ../../sdk/continuations/writing-handler-functions.en.rst:74
+#: ../../sdk/continuations/writing-handler-functions.en.rst:75
+#: ../../sdk/continuations/writing-handler-functions.en.rst:76
+#: ../../sdk/continuations/writing-handler-functions.en.rst:77
+#: ../../sdk/continuations/writing-handler-functions.en.rst:78
+#: ../../sdk/continuations/writing-handler-functions.en.rst:82
+msgid "``TSHttpTxn``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:71
+msgid "``TS_EVENT_HTTP_OS_DNS``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:71
+msgid "``TS_HTTP_OS_DNS_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:72
+msgid "``TS_EVENT_HTTP_SEND_REQUEST_HDR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:72
+msgid "``TS_HTTP_SEND_REQUEST_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:73
+msgid "``TS_EVENT_HTTP_READ_CACHE_HDR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:73
+msgid "``TS_HTTP_READ_CACHE_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:74
+msgid "``TS_EVENT_HTTP_READ_RESPONSE_HDR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:74
+msgid "``TS_HTTP_READ_RESPONSE_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:75
+msgid "``TS_EVENT_HTTP_SEND_RESPONSE_HDR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:75
+msgid "``TS_HTTP_SEND_RESPONSE_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:76
+msgid "``TS_EVENT_HTTP_SELECT_ALT``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:76
+msgid "``TS_HTTP_SELECT_ALT_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:77
+msgid "``TS_EVENT_HTTP_TXN_START``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:77
+msgid "``TS_HTTP_TXN_START_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:78
+msgid "``TS_EVENT_HTTP_TXN_CLOSE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:78
+msgid "``TS_HTTP_TXN_CLOSE_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:79
+msgid "``TS_EVENT_HTTP_SSN_START``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:79
+msgid "``TS_HTTP_SSN_START_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:79
+#: ../../sdk/continuations/writing-handler-functions.en.rst:80
+msgid "``TSHttpSsn``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:80
+msgid "``TS_EVENT_HTTP_SSN_CLOSE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:80
+msgid "``TS_HTTP_SSN_CLOSE_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:81
+msgid "``TS_EVENT_NONE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:82
+msgid "``TS_EVENT_CACHE_LOOKUP_COMPLETE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:82
+msgid "``TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:83
+#: ../../sdk/continuations/writing-handler-functions.en.rst:86
+#: ../../sdk/continuations/writing-handler-functions.en.rst:87
+msgid "``TS_EVENT_IMMEDIATE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:83
+msgid "``TSVConnClose`` ``TSVIOReenable`` ``TSContSchedule``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:86
+msgid "``TS_HTTP_REQUEST_TRANSFORM_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:87
+msgid "``TS_HTTP_RESPONSE_TRANSFORM_HOOK``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:88
+msgid "``TS_EVENT_CACHE_OPEN_READ``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:88
+#: ../../sdk/continuations/writing-handler-functions.en.rst:89
+msgid "``TSCacheRead``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:88
+#: ../../sdk/continuations/writing-handler-functions.en.rst:90
+msgid "Cache VC"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:89
+msgid "``TS_EVENT_CACHE_OPEN_READ_FAILED``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:89
+#: ../../sdk/continuations/writing-handler-functions.en.rst:91
+#: ../../sdk/continuations/writing-handler-functions.en.rst:93
+msgid "TS_CACHE_ERROR code"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:90
+msgid "``TS_EVENT_CACHE_OPEN_WRITE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:90
+#: ../../sdk/continuations/writing-handler-functions.en.rst:91
+msgid "``TSCacheWrite``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:91
+msgid "``TS_EVENT_CACHE_OPEN_WRITE_FAILED``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:92
+msgid "``TS_EVENT_CACHE_REMOVE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:92
+#: ../../sdk/continuations/writing-handler-functions.en.rst:93
+msgid "``TSCacheRemove``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:93
+msgid "``TS_EVENT_CACHE_REMOVE_FAILED``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:94
+msgid "``TS_EVENT_NET_ACCEPT``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:94
+#: ../../sdk/continuations/writing-handler-functions.en.rst:97
+msgid "``TSNetAccept`` ``TSHttpTxnServerIntercept`` ``TSHttpTxnIntercept``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:94
+msgid "``NetVConnection``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:97
+msgid "``TS_EVENT_NET_ACCEPT_FAILED``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:100
+msgid "``TS_EVENT_HOST_LOOKUP``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:100
+msgid "``TSHostLookup``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:100
+msgid "``TSHostLookupResult``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:101
+msgid "``TS_EVENT_TIMEOUT``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:101
+#: ../../sdk/continuations/writing-handler-functions.en.rst:123
+msgid "``TSContSchedule``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:102
+msgid "``TS_EVENT_ERROR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:103
+msgid "``TS_EVENT_VCONN_READ_READY``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:103
+#: ../../sdk/continuations/writing-handler-functions.en.rst:105
+#: ../../sdk/continuations/writing-handler-functions.en.rst:107
+msgid "``TSVConnRead``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:103
+#: ../../sdk/continuations/writing-handler-functions.en.rst:104
+#: ../../sdk/continuations/writing-handler-functions.en.rst:105
+#: ../../sdk/continuations/writing-handler-functions.en.rst:106
+#: ../../sdk/continuations/writing-handler-functions.en.rst:107
+#: ../../sdk/continuations/writing-handler-functions.en.rst:108
+#: ../../sdk/continuations/writing-handler-functions.en.rst:109
+msgid "``TSVConn``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:104
+msgid "``TS_EVENT_VCONN_WRITE_READY``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:104
+#: ../../sdk/continuations/writing-handler-functions.en.rst:106
+msgid "``TSVConnWrite``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:105
+msgid "``TS_EVENT_VCONN_READ_COMPLETE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:106
+msgid "``TS_EVENT_VCONN_WRITE_COMPLETE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:107
+msgid "``TS_EVENT_VCONN_EOS``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:108
+msgid "``TS_EVENT_NET_CONNECT``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:108
+#: ../../sdk/continuations/writing-handler-functions.en.rst:109
+msgid "``TSNetConnect``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:109
+msgid "``TS_EVENT_NET_CONNECT_FAILED``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:110
+msgid "``TS_EVENT_HTTP_CONTINUE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:111
+msgid "``TS_EVENT_HTTP_ERROR``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:112
+msgid "``TS_EVENT_MGMT_UPDATE``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:112
+msgid "``TSMgmtUpdateRegister``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:115
+msgid "The continuation functions are listed below:"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:117
+msgid "``TSContCall``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:118
+msgid "``TSContCreate``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:119
+msgid "``TSContDataGet``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:120
+msgid "``TSContDataSet``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:121
+msgid "``TSContDestroy``"
+msgstr ""
+
+#: ../../sdk/continuations/writing-handler-functions.en.rst:122
+msgid "``TSContMutexGet``"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/getting-started.en.po b/doc/locale/ja/LC_MESSAGES/sdk/getting-started.en.po
new file mode 100644
index 00000000..73f78ddc
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/getting-started.en.po
@@ -0,0 +1,335 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/getting-started.en.rst:4
+msgid "Getting Started"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:30
+msgid ""
+"The Traffic Server API enables you to create plugins, using the C "
+"programming language, that customize the behavior of your Traffic Server "
+"installation. This chapter contains the following sections:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:49
+msgid "Understanding Traffic Server Plugins"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:51
+msgid ""
+"Traffic Server enables sophisticated caching and processing of web-related "
+"traffic, such as DNS and HTTP requests and responses."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:54
+msgid ""
+"Traffic Server itself consists of an event-driven loop that can be "
+"simplified as follows:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:65
+msgid "The Role of Plugins"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:67
+msgid ""
+"You compile your plugin source code to create a shared library that Traffic "
+"Server loads when it is started. Your plugin contains callback functions "
+"that are registered for specific Traffic Server events. When Traffic Server "
+"needs to process an event, it invokes any and all call-back functions "
+"you've registered for that event type."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:75
+msgid ""
+"Since plugins add object code to Traffic Server, programming errors in a "
+"plugin can have serious implications. Bugs in your plugin, such as an out-"
+"of-range pointer, can cause Traffic Server processes to crash and may "
+"ultimately result in unpredictable behavior."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:88
+msgid "Plugin Process"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:91
+msgid "Possible Uses for Plugins"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:93
+msgid "Possible uses for plugins include the following:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:95
+msgid ""
+"HTTP processing: plugins can filter, blacklist, authorize users, transform "
+"content"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:98
+msgid ""
+"Protocol support: plugins can enable Traffic Server to proxy-cache new "
+"protocol content"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:101
+msgid "Some examples of plugins include:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:103
+msgid ""
+"**Blacklisting plugin**: denies attempts to access web sites that are off-"
+"limits."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:106
+msgid "**Append transform plugin**: adds text to HTTP response content."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:108
+msgid "**Image conversion plugin**: transforms JPEG images to GIF images."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:110
+msgid ""
+"**Compression plugin**: sends response content to a compression server that "
+"compresses the data (alternatively, a compression library local to the "
+"Traffic Server host machine could do the compression)."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:114
+msgid ""
+"**Authorization plugin**: checks a user's permissions to access particular "
+"web sites. The plugin could consult a local authorization program or send "
+"queries to an authorization server."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:118
+msgid ""
+"**A plugin that gathers client information** from request headers and "
+"enters this information in a database."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:121
+msgid ""
+"**Protocol plugin**: listens for specific protocol requests on a designated "
+"port and then uses Traffic Server's proxy server & cache to serve client "
+"requests."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:135
+msgid "Possible Traffic Server Plugins"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:137
+msgid "You can find basic examples for many plugins in the SDK sample code:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:143
+msgid ""
+"The compression plugin in the figure communicates with the server that "
+"actually does the compression. The ``server-transform.c`` plugin shows how "
+"to open a connection to a transformation server, have the server do the "
+"transformation, and send transformed data back to the client. Although the "
+"transformation is null in ``server-transform.c``, a compression or image "
+"translation plugin could be implemented in a similar way."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:151
+msgid "``basic-auth.c`` performs basic HTTP proxy authorization."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:158
+msgid "Plugin Loading"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:167
+msgid ""
+"The path for each of these files is *<root_dir>*\\ ``/config/``, where "
+"*<root_dir>* is where you installed Traffic Server."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:170
+msgid "Plugin Configuration"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:172
+msgid ""
+"The sample ``plugin.config`` file below contains a comment line, a blank "
+"line, and two plugin configurations:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:182
+msgid ""
+"Each plugin configuration in the ``plugin.config`` file resembles a UNIX or "
+"DOS shell command; each line in ``plugin.config`` cannot exceed 1023 "
+"characters."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:186
+msgid ""
+"The first plugin configuration is for a plugin named ``my-plugin.so``. It "
+"contains three arguments that are to be passed to that plugin's "
+"initialization routine. The second configuration is for a plugin named "
+"``some-plugin.so``; it contains three arguments. The last argument, *``"
+"$proxy.config.http.cache.on``*, is actually a configuration variable. "
+"Traffic Server will look up the specified configuration variable and "
+"substitute its value."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:194
+msgid ""
+"Plugins with global variables should not appear more than once in ``plugin."
+"config``. For example, if you enter:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:202
+msgid ""
+"then the second global variable, ``header2``, will be used for both "
+"instances. A simple workaround is to give different names to different "
+"instances of the same plugin. For example:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:211
+msgid "These entries will produce the desired result below:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:219
+msgid "Configuration File Rules"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:221
+msgid "Comment lines begin with **#** and continue to the end of the line."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:223
+msgid "Blank lines are ignored."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:225
+msgid ""
+"Plugins are loaded and initialized by Traffic Server in the order they "
+"appear in the ``plugin.config`` file."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:229
+msgid "Plugin Initialization"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:231
+msgid ""
+"Each plugin must define an initialization function named ``TSPluginInit`` "
+"that Traffic Server invokes when the plugin is loaded. The ``TSPluginInit`` "
+"function is commonly used to read configuration information and register "
+"hooks for event notification."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:236
+msgid "The ``TSPluginInit`` function has two arguments:"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:238
+msgid ""
+"The ``argc`` argument represents the number of arguments defined in the "
+"``plugin.config`` file for that particular plugin"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:241
+msgid ""
+"The ``argv`` argument is an array of pointers to the actual arguments "
+"defined in the ``plugin.config`` file for that plugin"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:34
+msgid ""
+"`Understanding Traffic Server Plugins`_ -- a brief introduction to plugins. "
+"For more details, see :doc:`how-to-create-trafficserver-plugins.en`"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:37
+msgid ""
+":doc:`getting-started/a-simple-plugin.en` -- walks through compiling and "
+"loading an example ``hello world`` plugin."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:40
+msgid ""
+":doc:`getting-started/plugin-registration-and-version-checking.en` -- shows "
+"you how to register your plugin and make sure it's compatible with the "
+"version of Traffic Server you're using."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:44
+msgid ""
+":doc:`getting-started/naming-conventions.en` -- outlines Traffic Server API "
+"naming conventions. For guidelines on creating plugin source code, see :doc:"
+"`how-to-create-trafficserver-plugins.en`"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:80
+msgid "**Plugin Process**"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:125
+msgid ""
+"The figure below, :ref:`possibleTSplugins`, illustrates several types of "
+"plugins."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:127
+msgid "**Possible Traffic Server Plugins**"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:139
+msgid ""
+"``append-transform.c`` adds text from a specified file to HTTP/text "
+"responses. This plugin is explained in :doc:`http-transformation-plugin/"
+"append-transform-plugin.en`"
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:153
+msgid ""
+"``blacklist-1.c`` reads blacklisted servers from a configuration file and "
+"denies client access to these servers. This plugin is explained in :doc:"
+"`header-based-plugin-examples/blacklist-plugin.en`."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:160
+msgid ""
+"When Traffic Server is first started, it consults the ``plugin.config`` "
+"file to determine the names of all shared plugin libraries that need to be "
+"loaded. The ``plugin.config`` file also defines arguments that are to be "
+"passed to each plugin's initialization function, ``TSPluginInit``. The :"
+"file:`records.config` file defines the path to each plugin shared library, "
+"as described in :ref:`specify-the-plugins-location`."
+msgstr ""
+
+#: ../../sdk/getting-started.en.rst:244
+msgid "See :c:func:`TSPluginInit` for details about ``TSPluginInit``."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/getting-started/a-simple-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/getting-started/a-simple-plugin.en.po
new file mode 100644
index 00000000..38c6331b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/getting-started/a-simple-plugin.en.po
@@ -0,0 +1,150 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:2
+msgid "A Simple Plugin"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:21
+msgid ""
+"This section describes how to write, compile, configure, and run a simple "
+"Traffic Server plugin. You'll follow the steps below:"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:24
+msgid ""
+"Make sure that your plugin source code contains an ``TSPluginInit`` "
+"initialization function."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:27
+msgid "Compile your plugin source code, creating a shared library."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:29
+msgid "Add an entry to your plugin's ``plugin.config`` file."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:31
+msgid ""
+"Add the path to your plugin shared library into the :file:`records.config` "
+"file."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:34
+msgid "Restart Traffic Server."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:37
+msgid "Compile Your Plugin"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:39
+msgid ""
+"The process for compiling a shared library varies with the platform used, "
+"so the Traffic Server API provides the tsxs tool which you can use to "
+"create shared libraries on all the supported Traffic Server platforms."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:45
+msgid "Example"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:47
+msgid ""
+"Assuming the sample program is stored in the file ``hello-world.c``, you "
+"could use the following commands to build a shared library"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:54
+msgid "This shared library will be your plugin. In order to install it, run"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:60
+msgid "or the equivalent to ``sudo`` on your platform."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:63
+msgid "Update the ``plugin.config`` File"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:65
+msgid ""
+"Your next step is to tell Traffic Server about the plugin by adding the "
+"following line to the ``plugin.config`` file. Since our simple plugin does "
+"not require any arguments, the following ``plugin.config`` will work:"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:75
+msgid ""
+"Traffic Server can accommodate multiple plugins. If several plugin "
+"functions are triggered by the same event, then Traffic Server invokes each "
+"plugin's function in the order each was defined in the ``plugin.config`` "
+"file."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:83
+msgid "Specify the Plugin's Location"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:85
+msgid ""
+"All plugins must be located in the directory specified by the configuration "
+"variable ``proxy.config.plugin.plugin_dir``, which is located in the :file:"
+"`records.config` file. The directory can be specified as an absolute or "
+"relative path."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:90
+msgid ""
+"If a relative path is used, then the starting directory will be the Traffic "
+"Server installation directory as specified in ``/etc/traffic_server``. The "
+"default value is ``libexec/trafficserver``, but this can vary based on how "
+"the software was configured and built. It is common to use the default "
+"directory. Be sure to place the shared library ``hello-world.so`` inside "
+"the directory you've configured."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:98
+msgid "Restart Traffic Server"
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:100
+msgid ""
+"The last step is to start/restart Traffic Server. Shown below is the output "
+"displayed after you've created and loaded your ``hello-world`` plugin."
+msgstr ""
+
+#: ../../sdk/getting-started/a-simple-plugin.en.rst:116
+msgid ""
+"**Note:** in the example above, Traffic Server notes are directed to the "
+"console by specifying ``E`` for ``proxy.config.diags.output.note`` in :file:"
+"`records.config`. The second note shows Traffic Server attempting to load "
+"the ``hello-world`` plugin. The third line of Traffic Server output is from "
+"your plugin."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/getting-started/naming-conventions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/getting-started/naming-conventions.en.po
new file mode 100644
index 00000000..86f060ab
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/getting-started/naming-conventions.en.po
@@ -0,0 +1,83 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:2
+msgid "Naming Conventions"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:21
+msgid "The Traffic Server API adheres to the following naming conventions:"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:23
+msgid ""
+"The ``TS`` prefix is used for all function and variable names defined in "
+"the Traffic Server API. **Examples**: ``TS_EVENT_NONE``,\\ ``TSMutex``, and "
+"``TSContCreate``"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:27
+msgid ""
+"Enumerated values are always written in all uppercase letters. "
+"**Examples**: *``TS_EVENT_NONE``* and *``TS_VC_CLOSE_ABORT``*"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:30
+msgid ""
+"Constant values are all uppercase; enumerated values can be seen as a "
+"subset of constants. **Examples**: ``TS_URL_SCHEME_FILE`` and "
+"``TS_MIME_FIELD_ACCEPT``"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:34
+msgid ""
+"The names of defined types are mixed-case. **Examples**: *``TSHttpSsn``* "
+"and *``TSHttpTxn``*"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:37
+msgid ""
+"Function names are mixed-case. **Examples**: ``TSUrlCreate`` and "
+"``TSContDestroy``"
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:40
+msgid ""
+"Function names use the following subject-verb naming style: ``TS-<subject>-"
+"<verb>``, where ``<subject>`` goes from general to specific. This makes it "
+"easier to determine what a function does by reading its name. **For** "
+"**example**: the function to retrieve the password field (the specific "
+"subject) from a URL (the general subject) is ``TSUrlPasswordGet``."
+msgstr ""
+
+#: ../../sdk/getting-started/naming-conventions.en.rst:47
+msgid ""
+"Common verbs like ``Create``, ``Destroy``, ``Get``, ``Set``, ``Copy``, "
+"``Find``, ``Retrieve``, ``Insert``, ``Remove``, and ``Delete`` are used "
+"only when appropriate."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/getting-started/plugin-registration-and-version-checking.en.po b/doc/locale/ja/LC_MESSAGES/sdk/getting-started/plugin-registration-and-version-checking.en.po
new file mode 100644
index 00000000..bf0d1b9a
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/getting-started/plugin-registration-and-version-checking.en.po
@@ -0,0 +1,59 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/getting-started/plugin-registration-and-version-checking.en.rst:2
+msgid "Plugin Registration and Version Checking"
+msgstr ""
+
+#: ../../sdk/getting-started/plugin-registration-and-version-checking.en.rst:21
+msgid ""
+"Make sure that the functions in your plugin are supported in your version "
+"of Traffic Server."
+msgstr ""
+
+#: ../../sdk/getting-started/plugin-registration-and-version-checking.en.rst:24
+msgid "Use the following interfaces:"
+msgstr ""
+
+#: ../../sdk/getting-started/plugin-registration-and-version-checking.en.rst:29
+msgid ""
+"The following version of ``hello-world`` registers the plugin and ensures "
+"it's running with a compatible version of Traffic Server."
+msgstr ""
+
+#: ../../sdk/getting-started/plugin-registration-and-version-checking.en.rst:26
+msgid ""
+"`TSPluginRegister <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a6d7f514e70abaf097c4a3f1ba01f6df8>`_"
+msgstr ""
+
+#: ../../sdk/getting-started/plugin-registration-and-version-checking.en.rst:27
+msgid ""
+"`TSTrafficServerVersionGet <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a3ef91e01612ffdce6dd040f836db08e8>`_"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples.en.po
new file mode 100644
index 00000000..0a1108fa
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples.en.po
@@ -0,0 +1,108 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples.en.rst:4
+msgid "Header-Based Plugin Examples"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:29
+msgid ""
+"Header-based plugins read or modify the headers of HTTP messages that "
+"Traffic Server sends and receives. Reading this chapter will help you to "
+"understand the following topics:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:33
+msgid "Creating continuations for your plugins"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:35
+msgid "Adding global hooks"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:37
+msgid "Adding transaction hooks"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:39
+msgid "Working with HTTP header functions"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:41
+msgid ""
+"The two sample plugins discussed in this chapter are ``blacklist-1.c`` and "
+"``basic-auth.c``."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:45
+msgid "Overview"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:47
+msgid ""
+"Header-based plugins take actions based on the contents of HTTP request or "
+"response headers. Examples include filtering (on the basis of requested "
+"URL, source IP address, or other request header), user authentication, or "
+"user redirection. Header-based plugins have the following common elements:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:53
+msgid ""
+"The plugin has a static parent continuation that scans all Traffic Server "
+"headers (either request headers, response headers, or both)."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:56
+msgid ""
+"The plugin has a global hook. This enables the plugin to check all "
+"transactions to determine if the plugin needs to do something."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:59
+msgid ""
+"The plugin gets a handle to the transaction being processed through the "
+"global hook."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:62
+msgid ""
+"If the plugin needs to do something to transactions in specific cases, then "
+"it sets up a transaction hook for a particular event."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:65
+msgid ""
+"The plugin obtains client header information and does something based on "
+"that information."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples.en.rst:68
+msgid ""
+"This chapter demonstrates how these components are implemented in SDK "
+"sample code."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin.en.po
new file mode 100644
index 00000000..41c4539c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin.en.po
@@ -0,0 +1,56 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst:2
+msgid "The Basic Authorization Plugin"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst:21
+msgid ""
+"The sample basic authorization plugin, ``basic-auth.c``, checks for basic "
+"HTTP proxy authorization. In HTTP basic proxy authorization, client user "
+"names and passwords are contained in the ``Proxy-Authorization`` header. "
+"The password is encoded using base64 encoding. The plugin checks all "
+"incoming requests for the authorization header, user name, and password. If "
+"the plugin does not find all of the these, then it reenables with an error "
+"(effectively stopping the transaction) and adds a transaction hook to the "
+"send response header event."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst:32
+msgid "Creating the Plugin's Parent Continuation and Global Hook"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst:34
+msgid "The parent continuation and global hook are created as follows:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst:36
+msgid ""
+"``TSHttpHookAdd (TS_HTTP_OS_DNS_HOOK, TSContCreate (auth_plugin, NULL));``"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.po
new file mode 100644
index 00000000..af0d29cf
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.po
@@ -0,0 +1,37 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.rst:2
+msgid "Implementing the Handler and Getting a Handle to the Transaction"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.rst:21
+msgid ""
+"The handler function for the plugin's parent continuation is implemented as "
+"follows:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.po
new file mode 100644
index 00000000..63b7a604
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.po
@@ -0,0 +1,75 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst:2
+msgid "Setting a Transaction Hook"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst:21
+msgid ""
+"If the request does not have the ``Proxy-Authorization`` field set to Basic "
+"authorization or a valid username/password, then the plugin sends the 407 "
+"Proxy authorization ``required`` status code back to the client. The client "
+"will then prompt the user for a username and password, and then resend the "
+"request."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst:27
+msgid ""
+"In the ``handle_dns`` routine, the following lines handle the authorization "
+"error case:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst:37
+msgid ""
+"If ``handle_dns`` does not find the ``Proxy-Authorization`` field set to "
+"Basic authorization or a valid username/password, then it adds a "
+"``SEND_RESPONSE_HDR_HOOK`` to the transaction being processed. This means "
+"that Traffic Server will call the plugin back when sending the client "
+"response. ``handle_dns`` reenables the transaction with "
+"``TS_EVENT_HTTP_ERROR``, which means that the plugin wants Traffic Server "
+"to terminate the transaction."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst:45
+msgid ""
+"When Traffic Server terminates the transaction, it sends the client an "
+"error message. Because of the ``SEND_RESPONSE_HDR_HOOK``, Traffic Server "
+"calls the plugin back. The ``auth-plugin`` routine calls "
+"``handle_response`` to send the client a ``407`` status code. When the "
+"client resends the request with the ``Proxy-Authorization`` field, a new "
+"transaction begins."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst:52
+msgid ""
+"``handle_dns`` calls ``base64_decode`` to decode the username and password; "
+"``handle_dns`` also calls ``authorized`` to validate the username and "
+"password. In this plugin, sample NT code is provided for password "
+"validation. UNIX programmers can supply their own validation mechanism."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.po
new file mode 100644
index 00000000..8db02693
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.po
@@ -0,0 +1,48 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.rst:2
+msgid "Working With HTTP Headers"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.rst:21
+msgid ""
+"The plugin checks all client request headers for the Proxy-Authorization "
+"MIME field, which should contain the user name and password. The plugin's "
+"continuation handler, ``auth-plugin``, calls ``handle_dns`` to check the "
+"``Proxy-Authorization`` field. The ``handle_dns`` routine uses "
+"``TSHttpTxnClientReqGet`` and ``TSMimeHdrFieldFind`` to obtain the ``Proxy-"
+"Authorization`` field:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.rst:46
+msgid ""
+"If the ``Proxy-Authorization`` field is present, then the plugin checks "
+"that the authentication type is \"Basic\", and the user name and password "
+"are present and valid:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin.en.po
new file mode 100644
index 00000000..32b8f2f4
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin.en.po
@@ -0,0 +1,97 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:2
+msgid "The Blacklist Plugin"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:21
+msgid ""
+"The sample blacklisting plugin included in the Traffic Server SDK is "
+"``blacklist-1.c``. This plugin checks every incoming HTTP client request "
+"against a list of blacklisted web sites. If the client requests a "
+"blacklisted site, then the plugin returns an ``Access forbidden`` message "
+"to the client."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:36
+msgid "Creating the Parent Continuation"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:38
+msgid ""
+"You create the static parent continuation in the mandatory ``TSPluginInit`` "
+"function. This parent continuation effectively **is** the plugin: the "
+"plugin executes only when this continuation receives an event from Traffic "
+"Server. Traffic Server passes the event as an argument to the "
+"continuation's handler function. When you create continuations, you must "
+"create and specify their handler functions."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:45
+msgid ""
+"You can specify an optional mutex lock when you create continuations. The "
+"mutex lock protects data shared by asynchronous processes. Because Traffic "
+"Server has a multi-threaded design, race conditions can occur if several "
+"threads try to access the same continuation's data."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:65
+msgid ""
+"The handler function for the plugin is ``blacklist_plugin``, and the mutex "
+"is null. The continuation handler function's job is to handle the events "
+"that are sent to it; accordingly, the ``blacklist_plugin`` routine consists "
+"of a switch statement that covers each of the events that might be sent to "
+"it:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:27
+msgid ""
+"The flow of HTTP processing with the blacklist plugin is illustrated in the "
+"figure titled :ref:`BlackListPlugin`. This example also contains a simple "
+"configuration management interface. It can read a list of blacklisted sites "
+"from a file (``blacklist.txt``) that can be updated by a Traffic Server "
+"administrator. When the configuration file is updated, Traffic Server sends "
+"an event to the plugin that wakes it up to do some work."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:50
+msgid ""
+"Here is how the static parent continuation is created in ``blacklist-1.c``:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin.en.rst:91
+msgid ""
+"When you write handler functions, you have to anticipate any events that "
+"might be sent to the handler by hooks or by other functions. In the "
+"Blacklist plugin, ``TS_EVENT_OS_DNS`` is sent because of the global hook "
+"established in ``TSPluginInit``, ``TS_EVENT_HTTP_SEND_RESPONSE_HDR`` is "
+"sent because the plugin contains a transaction hook (see :doc:`blacklist-"
+"plugin/setting-up-a-transaction-hook.en`). It is good practice to have a "
+"default case in your switch statements."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.po
new file mode 100644
index 00000000..6e4826d8
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.po
@@ -0,0 +1,68 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst:2
+msgid "Accessing the Transaction Being Processed"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst:21
+msgid ""
+"A continuation's handler function is of type ``TSEventFunc``; the prototype "
+"is as follows:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst:24
+msgid ""
+"``static int function_name (TSCont contp, TSEvent event, void *edata)``"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst:26
+msgid ""
+"In general, the return value of the handler function is not used. The "
+"continuation argument is the continuation being called back, the event is "
+"the event being sent to the continuation, and the data pointed to by ``void "
+"*edata`` depends on the type of event. The data types for each event type "
+"are listed in `Writing Handler Functions <../../continuations/writing-"
+"handler-functions>`__"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst:33
+msgid ""
+"The key here is that if the event is an HTTP transaction event, then the "
+"data passed to the continuation's handler is of type ``TSHttpTxn`` (a data "
+"type that represents HTTP transactions). Your plugin can then do things "
+"with the transaction. Here's how it looks in the code for the Blacklist "
+"plugin's handler:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst:58
+msgid ""
+"For example: when the origin server DNS lookup event is sent, "
+"``blacklist_plugin`` can call ``handle_dns``\\ and pass ``txnp`` as an "
+"argument."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.po
new file mode 100644
index 00000000..44504fd0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.po
@@ -0,0 +1,53 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst:2
+msgid "Setting a Global Hook"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst:21
+msgid ""
+"Global hooks are always added in ``TSPluginInit`` using ``TSHttpHookAdd``. "
+"The two arguments of ``TSHttpHookAdd`` are the hook ID and the continuation "
+"to call when processing the event corresponding to the hook. In "
+"``blacklist-1.c``, the global hook is added as follows:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst:30
+msgid ""
+"Above, ``TS_HTTP_OS_DNS_HOOK`` is the ID for the origin server DNS lookup "
+"hook and ``contp`` is the parent continuation created earlier."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst:33
+msgid ""
+"This means that the Blacklist plugin is called at every origin server DNS "
+"lookup. When it is called, the handler functio ``blacklist_plugin`` "
+"receives ``TS_EVENT_HTTP_OS_DNS`` and calls ``handle_dns`` to see if the "
+"request is forbidden."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.po
new file mode 100644
index 00000000..4bcb3aa8
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.po
@@ -0,0 +1,88 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:2
+msgid "Setting Up a Transaction Hook"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:21
+msgid ""
+"The Blacklist plugin sends \"access forbidden\" messages to clients if "
+"their requests are directed to blacklisted hosts. Therefore, the plugin "
+"needs a transaction hook so it will be called back when Traffic Server's "
+"HTTP state machine reaches the \"send response header\" event. In the "
+"Blacklist plugin's ``handle_dns`` routine, the transaction hook is added as "
+"follows:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:48
+msgid ""
+"This code fragment shows some interesting features. The plugin is comparing "
+"the requested site to the list of blacklisted sites. While the plugin is "
+"using the blacklist, it must acquire the mutex lock for the blacklist to "
+"prevent configuration changes in the middle of a blacklisting operation. If "
+"the requested site is blacklisted, then the following things happen:"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:55
+msgid ""
+"A transaction hook is added with ``TSHttpTxnHookAdd``; the plugin is called "
+"back at the \"send response header\" event (i.e., the plugin sends an "
+"Access forbidden message to the client). You can see that in order to add a "
+"transaction hook, you need a handle to the transaction being processed."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:61
+msgid ""
+"The transaction is reenabled using ``TSHttpTxnReenable`` with "
+"``TS_EVENT_HTTP_ERROR`` as its event argument. Reenabling with an error "
+"event tells the HTTP state machine to stop the transaction and jump to the "
+"\"send response header\" state. Notice that if the requested site is not "
+"blacklisted, then the transaction is reenabled with the "
+"``TS_EVENT_HTTP_CONTINUE`` event."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:68
+msgid ""
+"The string and ``TSMLoc`` data stored in the marshal buffer ``bufp`` is "
+"released by ``TSHandleMLocRelease`` (see `Release Marshal Buffer Handles "
+"<RlsMarshalBufHandles.html>`__). Release these handles before reenabling "
+"the transaction."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst:73
+msgid ""
+"In general, whenever the plugin is doing something to a transaction, it "
+"must reenable the transaction when it is finished. In other words: every "
+"time your handler function handles a transaction event, it must call "
+"``TSHttpTxnReenable`` when it is finished. Similarly, after your plugin "
+"handles session events (``TS_EVENT_HTTP_SSN_START`` and "
+"``TS_EVENT_HTTP_SSN_CLOSE``), it must reenable the session with "
+"``TSHttpSsnReenable``. Reenabling the transaction twice in the same plugin "
+"routine is a bad error."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.po
new file mode 100644
index 00000000..815c7a4b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.po
@@ -0,0 +1,48 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.rst:2
+msgid "Working with HTTP Header Functions"
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.rst:21
+msgid ""
+"The Blacklist plugin examines the host header in every client transaction. "
+"This is done in the ``handle_dns`` routine, using "
+"``TSHttpTxnClientReqGet``, ``TSHttpHdrUrlGet``, and ``TSUrlHostGet``."
+msgstr ""
+
+#: ../../sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.rst:56
+msgid ""
+"To access the host header, the plugin must first get the client request, "
+"retrieve the URL portion, and then obtain the host header. See `HTTP "
+"Headers <../../http-headers>`__ for more information about these calls. See "
+"`Release Marshal Buffer Handles <../../http-headers/guide-to-trafficserver-"
+"http-header-system/release-marshal-buffer-handles>`__ for guidelines on "
+"using ``TSHandleMLocRelease``."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/how-to-create-trafficserver-plugins.en.po b/doc/locale/ja/LC_MESSAGES/sdk/how-to-create-trafficserver-plugins.en.po
new file mode 100644
index 00000000..494eb8f6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/how-to-create-trafficserver-plugins.en.po
@@ -0,0 +1,307 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:4
+msgid "How to Create Traffic Server Plugins"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:28
+msgid ""
+"This chapter provides a foundation for designing and writing plugins. "
+"Reading this chapter will help you to understand:"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:31
+msgid ""
+"The asynchronous event mode. This is the design paradigm used throughout "
+"Traffic Server; plugins must also follow this design. It includes the "
+"callback mechanism for Traffic Server to \"wake up\" your plugin and put it "
+"to work."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:36
+msgid ""
+"Traffic Server's HTTP processing, with an overview of the HTTP state "
+"machine."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:39
+msgid ""
+"How plugins can hook onto and modify/extend Traffic Server's HTTP "
+"processing."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:47
+msgid "The Asynchronous Event Model"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:49
+msgid ""
+"Traffic Server is a multi-threaded process. There are two main reasons why "
+"a server might use multiple threads:"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:52
+msgid ""
+"To take advantage of the concurrency available with multiple CPUs and "
+"multiple I/O devices."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:55
+msgid ""
+"To manage concurrency from having many simultaneous client connections. For "
+"example, a server could create one thread for each connection, allowing the "
+"operating system (OS) to control switching between threads."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:60
+msgid ""
+"Traffic Server uses multiple threads for the first reason. However, Traffic "
+"Server does not use a separate OS thread per transaction because it would "
+"not be efficient when handling thousands of simultaneous connections."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:65
+msgid ""
+"Instead, Traffic Server provides special event-driven mechanisms for "
+"efficiently scheduling work: the event system and continuations. The "
+"**event system** is used to schedule work to be done on threads. A "
+"**continuation** is a passive, event-driven state machine that can do some "
+"work until it reaches a waiting point; it then sleeps until it receives "
+"notification that conditions are right for doing more work. For example, "
+"HTTP state machines (which handle HTTP transactions) are implemented as "
+"continuations."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:93
+msgid "Traffic Server Internals"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:95
+msgid ""
+"Plugins are typically implemented as continuations. All of the sample code "
+"plugins (except ``hello-world``) are continuations that are created when "
+"Traffic Server starts up; they then wait for events that trigger them into "
+"activity."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:107
+msgid "Traffic Server with Plugins"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:109
+msgid ""
+"A plugin may consist of just one static continuation that is called "
+"whenever certain events happen. Examples of such plugins include "
+"``blacklist-1.c``, ``basic-auth.c``, and ``redirect-1.c``. Alternatively, a "
+"plugin might dynamically create other continuations as needed. Transform "
+"plugins are built in this manner: a static parent continuation checks all "
+"transactions to see if any are transformable; when a transaction is "
+"transformable, the static continuation creates a type of continuation "
+"called a **vconnection**. The vconnection lives as long as it takes to "
+"complete the transform and then destroys itself. This design can be seen in "
+"all of the sample transform plugins. Plugins that support new protocols "
+"also have this architecture: a static continuation listens for incoming "
+"client connections and then creates transaction state machines to handle "
+"each protocol transaction."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:123
+msgid ""
+"When you write plugins, there are several ways to send events to "
+"continuations. For HTTP plugins, there is a \"hook\" mechanism that enables "
+"the Traffic Server HTTP state machine to send your plugin wakeup calls when "
+"needed. Additionally, several Traffic Server API functions trigger Traffic "
+"Server sub-processes to send events to plugins: ``TSContCall``, "
+"``TSVConnRead``, ``TSCacheWrite``, and ``TSMgmtUpdateRegister``, to name a "
+"few."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:132
+msgid "Traffic Server HTTP State Machine"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:151
+msgid "HTTP Transaction"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:153
+msgid ""
+"An HTTP transaction consists of a client request for a web document and "
+"Traffic Server's response. The response could be the requested web server "
+"content or it could be an error message. The content could come from the "
+"Traffic Server cache or Traffic Server might fetch it from the origin "
+"server. The following diagram shows some states in a typical transaction - "
+"specifically, the scenario wherein content is served from cache."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:168
+msgid "Simplified HTTP Transaction"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:170
+msgid ""
+"In the diagram above, Traffic Server accepts the client connection, reads "
+"the request headers, looks up the origin server's IP address, and looks for "
+"the requested content in the cache. If the content is not in the cache (a "
+"\"miss\"), then Traffic Server opens a connection to the origin server and "
+"issues a request for the content. If the content is in the cache (a \"hit"
+"\"), then Traffic Server checks it for freshness."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:194
+msgid "API Hooks Corresponding to States Listed in"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:211
+msgid "Blacklist Plugin"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:213
+msgid ""
+"Traffic Server calls the Blacklist plugin right after the origin server DNS "
+"lookup. The plugin checks the requested host against a list of blacklisted "
+"servers; if the request is allowed, then the transaction proceeds. If the "
+"host is forbidden, then the Blacklist plugin sends the transaction into an "
+"error state. When the HTTP state machine gets to the \"send reply header\" "
+"state, it then calls the Blacklist plugin to provide the error message "
+"that's sent to the client."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:222
+msgid "Types of Hooks"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:234
+msgid ""
+"**Header manipulation plugins**, such as filtering, basic authorization, or "
+"redirects, usually have a global hook to the DNS lookup or the read request "
+"header states. If specific actions need to be done to the transaction "
+"further on, then the plugin adds itself to a transaction hook. "
+"**Transformation plugins** require a \\*\\*global hook \\*\\*to check all "
+"transactions for transformability followed by a **transform hook**, which "
+"is a type of transaction hook used specifically for transforms."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:42
+msgid ""
+"A :doc:`roadmap for writing plugins <how-to-create-trafficserver-plugins/"
+"roadmap-for-creating-plugins.en>`, with an overview of the functionality "
+"provided by the Traffic Server API."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:74
+msgid ""
+"Continuation objects are used throughout Traffic Server. Some might live "
+"for the duration of the Traffic Server process, while others are created "
+"(perhaps by other continuations) for specific needs and then destroyed. :"
+"ref:`TSInternals` (below) shows how the major components of Traffic Server "
+"interact. Traffic Server has several **processors**, such as *cache "
+"processor* and *net processor*, that consolidate cache or network I/O "
+"tasks. Processors talk to the event system and schedule work on threads. An "
+"executing thread calls back a continuation by sending it an event. When a "
+"continuation receives an event, it wakes up, does some work, and either "
+"destroys itself or goes back to sleep & waits for the next event."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:86
+msgid "**Traffic Server Internals**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:100
+msgid "**Traffic Server with Plugins**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:134
+msgid ""
+"Traffic Server performs sophisticated HTTP caching and proxying. Important "
+"features include checking for alternates and document freshness, filtering, "
+"supporting cache hierarchies, and hosting. Traffic Server handles thousands "
+"of client requests at a time and each request is handled by an HTTP state "
+"machine. These machines follow a complex state diagram that includes all of "
+"the states required to support Traffic Server's features. The Traffic "
+"Server API provides hooks to a subset of these states, chosen for their "
+"relevance to plugins. You can view the API hooks and corresponding HTTP "
+"states in the :ref:`http-txn-state-diagram`."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:145
+msgid ""
+"The example in this section (below) explains how a plugin typically "
+"intervenes and extends Traffic Server's processing of an HTTP transaction. "
+"Complete details about hooking on to Traffic Server processes are provided "
+"in :doc:`http-hooks-and-transactions.en`."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:161
+msgid "**Simplified HTTP Transaction**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:177
+msgid ""
+"If the content is fresh, then Traffic Server sends a reply header to the "
+"client. If the content is stale, then Traffic Server opens a connection to "
+"the origin server and requests the content. The figure above, :ref:"
+"`SimplifiedHTTPTransaction`, does *not* show behavior in the event of an "
+"error. If there is an error at a any stage, then the HTTP state machine "
+"jumps to the \"send reply header\" state and sends a reply. If the reply is "
+"an error, then the transaction closes. If the reply is not an error, then "
+"Traffic Server first sends the response content before it closes the "
+"transaction."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:187
+msgid "**API Hooks Corresponding to States**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:196
+msgid ""
+"You use hooks as triggers to start your plugin. The name of a hook reflects "
+"the Traffic Server state that was *just completed*. For example, the \"OS "
+"DNS lookup\" hook wakes up a plugin right *after* the origin server DNS "
+"lookup. For a plugin that requires the IP address of the requested origin "
+"server, this hook is the right one to use. The Blacklist plugin works in "
+"this manner, as shown in the :ref:`BlackListPlugin` diagram below."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:204
+msgid "**Blacklist Plugin**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins.en.rst:224
+msgid ""
+"The Blacklist plugin's hook to the \"origin server DNS lookup\" state is a "
+"****global hook****, meaning that the plugin is called *every time* there's "
+"an HTTP transaction with a DNS lookup event. The plugin's hook to the "
+"\"send reply header\" state is a **tr**\\ ***ansaction hook***, meaning "
+"that this hook is only invoked for *specified transactions* (in the "
+"Blacklist example, it's only used for requests to blacklisted servers). "
+"Several examples of setting up hooks are provided in the code example "
+"chapters: :doc:`header-based-plugin-examples.en` and :doc:`http-"
+"transformation-plugin.en`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.po b/doc/locale/ja/LC_MESSAGES/sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.po
new file mode 100644
index 00000000..7e6ca761
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.po
@@ -0,0 +1,145 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:2
+msgid "Roadmap for Creating Plugins"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:21
+msgid ""
+"This chapter has provided an overview of Traffic Server's HTTP processing, "
+"API hooks, and the asynchronous event model. Next, you must understand the "
+"capabilities of Traffic Server API functions. These are quite broad:"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:26
+msgid "**HTTP header manipulation functions**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:28
+msgid ""
+"Obtain information about and manipulate HTTP headers, URLs, & MIME headers."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:31
+msgid "**HTTP transaction functions**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:33
+msgid ""
+"Get information about and modify HTTP transactions (for example: get the "
+"client IP associated to the transaction; get the server IP; get parent "
+"proxy information)"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:37
+msgid "**IO functions**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:39
+msgid ""
+"Manipulate vconnections (virtual connections, used for network and disk I/O)"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:42
+msgid "**Network connection functions**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:44
+msgid "Open connections to remote servers."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:46
+msgid "**Statistics functions**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:48
+msgid "Define and compute statistics for your plugin's activity."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:50
+msgid "**Traffic Server management functions**"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:52
+msgid ""
+"Obtain values for Traffic Server configuration and statistics variables."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:55
+msgid "Below are some guidelines for creating a plugin:"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:57
+msgid ""
+"Decide what you want your plugin to do, based on the capabilities of the "
+"API and Traffic Server. Two main kinds of example plugins provided with "
+"this SDK are HTTP-based (includes header-based and response transform "
+"plugins), and non-HTTP-based (a protocol plugin). These examples are "
+"discussed in the next three chapters."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:71
+msgid ""
+"Figure out what parts of the Traffic Server API you need to use and then "
+"read about the details of those APIs in this manual's reference chapters."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:77
+msgid ""
+"Depending on your plugin's functionality, you might start testing it by "
+"issuing requests by hand and checking for the desired behavior in Traffic "
+"Server log files. See the ***Traffic Server Administrator's Guide*** for "
+"information about Traffic Server logs."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:82
+msgid ""
+"You can test the performance of Traffic Server running with your plugin "
+"using SDKTest. You can also customize SDKTest to perform functional testing "
+"on your plugin; for more information see the ***Traffic Server SDKTest "
+"User's Guide***."
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:63
+msgid ""
+"Determine where your plugin needs to hook on to Traffic Server's HTTP "
+"processing (view the :ref:`http-txn-state-diagram`"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:66
+msgid ""
+"Read :doc:`../header-based-plugin-examples.en` to learn the basics of "
+"writing plugins: creating continuations and setting up hooks. If you want "
+"to write a plugin that transforms data, then read :doc:`../http-"
+"transformation-plugin.en`"
+msgstr ""
+
+#: ../../sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst:75
+msgid "Compile and load your plugin (see :doc:`../getting-started.en`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers.en.po
new file mode 100644
index 00000000..a582b82c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers.en.po
@@ -0,0 +1,174 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers.en.rst:2
+msgid "HTTP Headers"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:21
+msgid "This chapter explains the functions used to manipulate HTTP headers."
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:33
+msgid "About HTTP Headers"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:35
+msgid "An ***HTTP message*** consists of the following:"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:37
+msgid "HTTP header"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:38
+msgid "body"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:39
+msgid "trailer"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:41
+msgid "The ***HTTP header*** consists of:"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:43
+msgid "A request or response line"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:45
+msgid "An HTTP **request line** contains a method, URL, and version"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:46
+msgid "A **response line** contains a version, status code, and reason phrase"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:49
+msgid "A MIME header"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:51
+msgid ""
+"A **MIME header** is comprised of zero or more MIME fields. A **MIME "
+"field** is composed of a field name, a colon, and (zero or more) field "
+"values. The values in a field are separated by commas. An HTTP header "
+"containing a request line is usually referred to as a **request**. The "
+"following example shows a typical request header."
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:69
+msgid ""
+"The **response header** for the above request might look like the following:"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:85
+msgid ""
+"The following figure illustrates an HTTP message with an expanded HTTP "
+"header."
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:88
+msgid "**Figure 10.1. HTTP Request/Response and Header Structure**"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:93
+msgid "HTTP Request/Response and Header Structure"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:95
+msgid "The figure below shows example HTTP request and response headers."
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:97
+msgid "**Figure 10.2. Examples of HTTP Request and Response Headers**"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:102
+msgid "Examples of HTTP Request and Response Headers"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:104
+msgid ""
+"The marshal buffer or ``TSMBuffer`` is a heap data structure that stores "
+"parsed URLs, MIME headers, and HTTP headers. You can allocate new objects "
+"out of marshal buffers and change the values within the marshal buffer. "
+"Whenever you manipulate an object, you must require the handle to the "
+"object (``TSMLoc``) and the marshal buffer containing the object "
+"(``TSMBuffer``)."
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:111
+msgid "**Figure 10.3. Marshal Buffers and Header Locations**"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:116
+msgid "Marshal Buffers and Header Locations"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:118
+msgid "The figure above shows the following:"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:120
+msgid "The marshal buffer containing the HTTP request, ``reqest_bufp``"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:122
+msgid "``TSMLoc`` location pointer for the HTTP header (``http_hdr_loc``)"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:124
+msgid "``TSMLoc`` location pointer for the request URL (``url_loc``)"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:126
+msgid "``TSMLoc`` location pointers for the MIME header (``mime_hdr_loc``)"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:128
+msgid "``TSMLoc`` location pointers for MIME fields (``fieldi_loc``)"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:130
+msgid ""
+"``TSMLoc`` location pointer for the next duplicate MIME field "
+"(``next_dup_loc``)"
+msgstr ""
+
+#: ../../sdk/http-headers.en.rst:133
+msgid ""
+"The diagram also shows that an HTTP header contains pointers to the URL "
+"location and the MIME header location. You can obtain the URL location from "
+"an HTTP header using the function ``TSHttpHdrUrlGet``. To work with MIME "
+"headers, you can pass either a MIME header location or an HTTP header "
+"location to MIME header functions . If you pass an HTTP header to a MIME "
+"header function, then the system locates the associated MIME header and "
+"executes the MIME header function on the MIME header location."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system.en.po
new file mode 100644
index 00000000..9af224e0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system.en.po
@@ -0,0 +1,62 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst:1
+msgid "Guide to Traffic Server HTTP Header System"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst:22
+msgid "No Null-Terminated Strings"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst:24
+msgid ""
+"It's not safe to assume that string data contained in marshal buffers (such "
+"as URLs and MIME fields) is stored in null-terminated string copies. "
+"Therefore, your plugins should always use the length parameter when "
+"retrieving or manipulating these strings. You **cannot** pass in ``NULL`` "
+"for string-length return values; string values returned from marshall "
+"buffers are not null-terminated. If you need a null-terminated value, then "
+"use ``TSstrndup`` to automatically null-terminate a string. The strings "
+"that come back and are not null-terminated **cannot** be passed into the "
+"common ``str*()`` routines"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst:35
+msgid ""
+"Values returned from a marshall buffer can be ``NULL``, which means the "
+"field or object requested does not exist."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst:38
+msgid "For example (from the ``blacklist-1`` sample)"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst:50
+msgid "See the sample plugins for additional examples."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.po
new file mode 100644
index 00000000..90ae9bf4
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.po
@@ -0,0 +1,49 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.rst:2
+msgid "Duplicate MIME Fields Are Not Coalesced"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.rst:22
+msgid ""
+"MIME headers can contain more than one MIME field with the same name. "
+"Earlier versions of Traffic Server joined multiple fields with the same "
+"name into one field with composite values. This behavior came at a "
+"performance cost and caused interoperability problems with older clients "
+"and servers. Therefore, this version of Traffic Server does not coalesce "
+"duplicate fields."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.rst:29
+msgid ""
+"Properly-behaving plugins should check for the presence of duplicate fields "
+"and then iterate over the duplicate fields via :ref:``TSMimeHdrFieldNextDup "
+"<http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#af2d776615afe959ed7c3639830a7061f>``."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.po
new file mode 100644
index 00000000..2408602e
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.po
@@ -0,0 +1,71 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:2
+msgid "MIME Fields Always Belong to an Associated MIME Header"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:21
+msgid ""
+"When using Traffic Server, you cannot create a new MIME field without an "
+"associated MIME header or HTTP header; MIME fields are always seen as part "
+"of a MIME header or HTTP header."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:25
+msgid ""
+"To use a MIME field, you must specify the MIME header or HTTP header to "
+"which it belongs - this is called the field's **parent header**. The "
+"``TSMimeField*`` functions in older versions of the SDK have been "
+"deprecated, as they do not require the parent header as inputs. The current "
+"version of Traffic Server uses new functions, the **``TSMimeHdrField``** "
+"series, which require you to specify the location of the parent header "
+"along with the location of the MIME field. For every deprecated "
+"*``TSMimeField``* function, there is a new, preferred ``TSMimeHdrField*`` "
+"function. Therefore, you should use the **``TSMimeHdrField``** functions "
+"instead of the deprecated *``TSMimeField``* series. Examples are provided "
+"below."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:37
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:51
+msgid "Instead of:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:44
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:59
+msgid "You should use:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst:68
+msgid ""
+"In the ``TSMimeHdrField*`` function prototypes, the ``TSMLoc`` field "
+"corresponds to the ``TSMLoc`` offset used the deprecated ``TSMimeField*`` "
+"functions (see the discussion of parent ``TSMLoc`` in the following "
+"section)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.po
new file mode 100644
index 00000000..bf17f4bb
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.po
@@ -0,0 +1,91 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:2
+msgid "Release Marshal Buffer Handles"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:21
+msgid ""
+"When you fetch a component object or create a new object, you get back a "
+"handle to the object location. The handle is either an ``TSMLoc`` for an "
+"object location or ``char *`` for a string location. You can manipulate the "
+"object through these handles, but when you are finished you need to release "
+"the handle to free up system resources."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:27
+msgid ""
+"The general guideline is to release all ``TSMLoc`` and string handles you "
+"retrieve. The one exception is the string returned by ``TSUrlStringGet``, "
+"which must be freed by a call to ``TSfree``."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:31
+msgid ""
+"The handle release functions expect three arguments: the marshal buffer "
+"containing the data, the location of the parent object, and the location of "
+"the object to be released. The parent location is usually clear from the "
+"creation of the ``TSMLoc`` or string. For example, if your plugin had the "
+"following calls:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:42
+msgid "then your plugin would have to call:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:48
+msgid ""
+"If an ``TSMLoc`` is obtained from a transaction, then it does not have a "
+"parent ``TSMLoc``. Use the null ``TSMLoc`` constant ``TS_NULL_MLOC`` as its "
+"parent. For example, if your plugin calls:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:56
+msgid "then you must release ``hdr_loc`` with:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:62
+msgid ""
+"You need to use ``TS_NULL_MLOC`` to release any ``TSMLoc`` handles "
+"retrieved by the ``TSHttpTxn*Get`` functions."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:65
+msgid "Here's an example using a new ``TSMimeHdrField`` function:"
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:74
+msgid "See the sample plugins for many more examples."
+msgstr ""
+
+#: ../../sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst:78
+msgid ""
+"You should release handles before reenabling the HTTP transaction. In other "
+"words, call ``TSHandleMLocRelease`` before ``TSHttpTxnReenable``."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/http-headers.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/http-headers.en.po
new file mode 100644
index 00000000..e1bd1db0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/http-headers.en.po
@@ -0,0 +1,483 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/http-headers.en.rst:2
+msgid "HTTP Headers"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:32
+msgid ""
+"The Traffic Server API HTTP header functions enable you to work with HTTP "
+"header data stored in marshal buffers."
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:35
+msgid ""
+"The HTTP header data structure is a parsed version of the HTTP header "
+"defined in the HTTP protocol specification. An HTTP header is composed of a "
+"request or response line followed by zero or more MIME fields. In fact, an "
+"HTTP header is a subclass of a MIME header; all of the MIME header routines "
+"operate on HTTP headers."
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:41
+msgid ""
+"An HTTP **request line** is composed of a method, a URL, and version. A "
+"**response line** is composed of a version, status code, and reason phrase. "
+"See `About HTTP Headers <../http-headers#AboutHTTPHeaders>`__ for "
+"additional details and examples."
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:46
+msgid ""
+"To facilitate fast comparisons and reduce storage size, Traffic Server "
+"defines several pre-allocated method names. These names correspond to the "
+"methods defined in the HTTP 1.1 specification"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:51
+msgid "``TS_HTTP_METHOD_CONNECT``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:51
+msgid "\"CONNECT\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:54
+msgid "``TS_HTTP_METHOD_DELETE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:54
+msgid "\"DELETE\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:57
+msgid "``TS_HTTP_METHOD_GE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:57
+msgid "\"GET\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:60
+msgid "``TS_HTTP_METHOD_HEAD``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:60
+msgid "\"HEAD\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:63
+msgid "``TS_HTTP_METHOD_ICP_QUERY``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:63
+msgid "\"ICP\\_QUERY\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:66
+msgid "``TS_HTTP_METHOD_OPTIONS``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:66
+msgid "\"OPTIONS\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:69
+msgid "``TS_HTTP_METHOD_POST``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:69
+msgid "\"POST\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:72
+msgid "``TS_HTTP_METHOD_PURGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:72
+msgid "\"PURGE\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:75
+msgid "``TS_HTTP_METHOD_PUT``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:75
+msgid "\"PUT\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:78
+msgid "``TS_HTTP_METHOD_TRACE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:78
+msgid "\"TRACE\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:83
+msgid ""
+"Traffic Server also defines several common values that appear in HTTP "
+"headers."
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:87
+msgid "``TS_HTTP_VALUE_BYTES``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:87
+msgid "\"bytes\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:90
+msgid "``TS_HTTP_VALUE_CHUNKED``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:90
+msgid "\"chunked\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:93
+msgid "``TS_HTTP_VALUE_CLOSE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:93
+msgid "\"close\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:96
+msgid "``TS_HTTP_VALUE_COMPRESS``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:96
+msgid "\"compress\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:99
+msgid "``TS_HTTP_VALUE_DEFLATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:99
+msgid "\"deflate\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:102
+msgid "``TS_HTTP_VALUE_GZIP``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:102
+msgid "\"gzip\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:105
+msgid "``TS_HTTP_VALUE_IDENTITY``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:105
+msgid "\"identity\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:108
+msgid "``TS_HTTP_VALUE_KEEP_ALIVE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:108
+msgid "\"keep-alive\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:111
+msgid "``TS_HTTP_VALUE_MAX_AGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:111
+msgid "\"max-age\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:114
+msgid "``TS_HTTP_VALUE_MAX_STALE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:114
+msgid "\"max-stale\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:117
+msgid "``TS_HTTP_VALUE_MIN_FRESH``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:117
+msgid "\"min-fresh\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:120
+msgid "``TS_HTTP_VALUE_MUST_REVALIDATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:120
+msgid "\"must-revalidate\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:123
+msgid "``TS_HTTP_VALUE_NONE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:123
+msgid "\"none\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:126
+msgid "``TS_HTTP_VALUE_NO_CACHE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:126
+msgid "\"no-cache\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:129
+msgid "``TS_HTTP_VALUE_NO_STORE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:129
+msgid "\"no-store\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:132
+msgid "``TS_HTTP_VALUE_NO_TRANSFORM``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:132
+msgid "\"no-transform\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:135
+msgid "``TS_HTTP_VALUE_ONLY_IF_CACHED``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:135
+msgid "\"only-if-cached\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:138
+msgid "``TS_HTTP_VALUE_PRIVATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:138
+msgid "\"private\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:141
+msgid "``TS_HTTP_VALUE_PROXY_REVALIDATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:141
+msgid "\"proxy-revalidate\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:144
+msgid "``TS_HTTP_VALUE_PUBLIC``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:144
+msgid "\"public\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:147
+msgid "``TS_HTTP_VALUE_S_MAX_AGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:147
+msgid "\"s-maxage\""
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:149
+msgid ""
+"The method names and header values above are defined in ``ts.h`` as ``const "
+"char*`` strings. When Traffic Server sets a method or a header value, it "
+"checks to make sure that the new value is one of the known values. If it "
+"is, then it stores a pointer into a global table (instead of storing the "
+"known value in the marshal buffer). The method names and header values "
+"listed above are also pointers into this table. This allows simple pointer "
+"comparison of the value returned from ``TSHttpMethodGet`` with one of the "
+"values listed above. It is also recommended that you use the above values "
+"when referring to one of the known schemes, since this removes the "
+"possibility of a spelling error."
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:160
+msgid "The **HTTP Header Functions** are listed below:"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:162
+msgid ""
+"```TSHttpHdrClone`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#abd410a18e8bc73298302c4ff3ee9b0c6>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:163
+msgid ""
+"```TSHttpHdrCopy`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a5ff26f3836a74e885113423dfd4d9ed6>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:164
+msgid ""
+"```TSHttpHdrCreate`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a8bbd8c2aaf70fb579af4520053fd5e10>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:165
+msgid ""
+"```TSHttpHdrDestroy`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a500ac4aae8f369221cf3ac2e3ce0d2a0>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:166
+msgid ""
+"```TSHttpHdrLengthGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a3afc557e4e99565ab81bf6437b65181b>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:167
+msgid ""
+"```TSHttpHdrMethodGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a358627e05506baa5c8270891652ac4d2>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:168
+msgid ""
+"```TSHttpHdrMethodSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a32bbcacacbef997e89c04cc3898b0ca4>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:169
+msgid ""
+"```TSHttpHdrPrint`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a7c88f30d6325a461fb038e6a117b3731>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:170
+msgid ""
+"```TSHttpHdrReasonGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a8b1609e9c8a8a52ebe7762b6109d3bef>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:171
+msgid ""
+"```TSHttpHdrReasonLookup`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#ab49fded8874b8e3e17cf4395c9832378>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:172
+msgid ""
+"```TSHttpHdrReasonSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ab86e5f5e7c0af2092c77327d2e0d3b23>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:173
+msgid ""
+"```TSHttpHdrStatusGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ac29d5acc357a0c82c83874f42b1e487b>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:174
+msgid ""
+"```TSHttpHdrStatusSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#af34459170ed7f3b002ddd597ae38af12>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:175
+msgid ""
+"```TSHttpHdrTypeGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#afc1c6f0a3258c4bc6567805df1db1ca3>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:176
+msgid ""
+"```TSHttpHdrTypeSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a86058d8590a665dbf43a529714202d3f>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:177
+msgid ""
+"```TSHttpHdrUrlGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#af149d7b5c1b8902363afc0ad658c494e>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:178
+msgid ""
+"```TSHttpHdrUrlSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ad935635a3918575fa6cca6843c474cfe>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:179
+msgid ""
+"```TSHttpHdrVersionGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a90cc8783f5d0bc159f226079aa0104e4>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:180
+msgid ""
+"```TSHttpHdrVersionSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#aa2a2c03399cdc8dc39b8756f13e7f189>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:181
+msgid ""
+"```TSHttpParserClear`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a7cb1b53b4464dc71287351616d6e7509>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:182
+msgid ""
+"```TSHttpParserCreate`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a6075fb4e8fc41eb75d640f258722115b>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:183
+msgid "`TSHttpParserDestroy <link/to/doxyge>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:184
+msgid ""
+"```TSHttpHdrParseReq`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a64193b3c9ddff8bc434c1cc9332004cc>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:185
+msgid ""
+"```TSHttpHdrParseResp`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a03c8a14b6ab2b7896ef0e4005222ecff>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:81
+msgid "``TS_HTTP_METHOD_PUSH``"
+msgstr ""
+
+#: ../../sdk/http-headers/http-headers.en.rst:81
+msgid "\"PUSH\""
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/marshal-buffers.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/marshal-buffers.en.po
new file mode 100644
index 00000000..7d27ddd4
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/marshal-buffers.en.po
@@ -0,0 +1,115 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:2
+msgid "Marshal Buffers"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:21
+msgid ""
+"A **marshal buffer**, or ``TSMBuffer``, is a heap data structure that "
+"stores parsed URLs, MIME headers, and HTTP headers. You can allocate new "
+"objects out of marshal buffers and change the values within a marshal "
+"buffer. Whenever you manipulate an object, you require the handle to the "
+"object (``TSMLoc``) and the marshal buffer containing the object "
+"(``TSMBuffer``)."
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:28
+msgid ""
+"Routines exist for manipulating the object based on these two pieces of "
+"information. For example, see one of the following:"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:35
+msgid ""
+"The **marshal buffer functions** enable you to create and destroy Traffic "
+"Server's marshal buffers, which are the data structures that hold parsed "
+"URLs, MIME headers, and HTTP headers."
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:40
+msgid ""
+"Any marshal buffer fetched by ``TSHttpTxn*Get`` will be used by other parts "
+"of the system. Be careful not to destroy these shared transaction marshal "
+"buffers in functions such as those below:"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:44
+msgid ""
+"`TSHttpTxnCachedReqGet <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a889b626142157077f4f3cfe479e8b8e2>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:45
+msgid ""
+"`TSHttpTxnCachedRespGet <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ae8f24b8dabb5008ad11620a11682ffd6>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:46
+msgid ""
+"`TSHttpTxnClientReqGet <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#acca66f22d0f87bf8f08478ed926006a5>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:47
+msgid ""
+"`TSHttpTxnClientRespGet <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a92349c8363f72b1f6dfed3ae80901fff>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:48
+msgid ""
+"`TSHttpTxnServerReqGet <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#aac2343a8b47bf9150f3ff7cd4e692d57>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:49
+msgid ""
+"`TSHttpTxnServerRespGet <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a39e8bfb199eadabb54c067ff25a9a400>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:50
+msgid ""
+"`TSHttpTxnTransformRespGet <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a20367f5469e8b7e73621c1316091d578>`_"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:31
+msgid ":doc:`http-headers.en`"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:32
+msgid ":doc:`urls.en`"
+msgstr ""
+
+#: ../../sdk/http-headers/marshal-buffers.en.rst:33
+msgid ":doc:`mime-headers.en`"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/mime-headers.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/mime-headers.en.po
new file mode 100644
index 00000000..8ff67fea
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/mime-headers.en.po
@@ -0,0 +1,948 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/mime-headers.en.rst:2
+msgid "MIME Headers"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:21
+msgid ""
+"The Traffic Server \\*\\*MIME header functions \\*\\* enable you to "
+"retrieve and modify information about HTTP MIME fields."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:24
+msgid ""
+"An HTTP request or response consists of a header, body, and trailer. The "
+"**HTTP** **header** contains a request (or response) line and a MIME "
+"header. A **MIME** **header** is composed of zero or more MIME fields. A "
+"**MIME** **field** is composed of a field name, a colon, and zero or more "
+"field values (values in a field are separated by commas)."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:30
+msgid ""
+"In the example below: ``Foo`` is the MIME field name, ``bar`` is the first "
+"MIME field value, and ``car`` is the second MIME field value."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:38
+msgid ""
+"The following example is an augmented **Backus-Naur Form** (BNF) for the "
+"form of a MIME header - it specifies exactly what was described above. A "
+"**header** consists of zero or more **fields** that contain a name, "
+"separating colon, and zero or more values. A **name** or **value** is "
+"simply a string of tokens that is potentially zero length; a **token** is "
+"any character except certain control characters and separators (such as "
+"colons). For the purpose of retrieving a field, field names are not case-"
+"sensitive; therefore, the field names ``Foo``, ``foo`` and ``fOO`` are all "
+"equivalent."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:56
+msgid ""
+"The MIME header data structure is a parsed version of a standard Internet "
+"MIME header. The MIME header data structure is similar to the URL data "
+"structure (see `URLs <urls>`__). The actual data is stored in a marshal "
+"buffer; the MIME header functions operate on a marshal buffer and a "
+"location (``TSMLoc``) within the buffer."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:62
+msgid ""
+"After a call to ``TSMimeHdrFieldDestroy``, ``TSMimeHdrFieldRemove``, or "
+"``TSUrlDestroy`` is made, you must deallocate the ``TSMLoc`` handle with a "
+"call to ``TSHandleMLocRelease``. You do not need to deallocate a ``NULL`` "
+"handles. For example: if you call ``TSMimeHdrFieldValueStringGet`` to get "
+"the value of the content type field and the field does not exist, then it "
+"returns ``TS_NULL_MLOC``. In such a case, you wouldn't need to deallocate "
+"the handle with a call to ``TSHandleMLocRelease``."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:71
+msgid ""
+"The location (``TSMLoc``) in the `MIME header functions "
+"<#MimeHeaderFxns>`__ can be either an HTTP header location or a MIME header "
+"location. If an HTTP header location is passed to these functions, then the "
+"system locates the MIME header associated with that HTTP header and "
+"executes the corresponding MIME header operations specified by the "
+"functions (see the example in the description of ```TSMimeHdrCopy`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a6e0a392b2e072db8e7f1d795151203b4>`__)."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:79
+msgid ""
+"**Note:** MIME headers may contain more than one MIME field with the same "
+"name. Previous versions of Traffic Server joined multiple fields with the "
+"same name into one field with composite values, but this behavior came at a "
+"performance cost and caused compatability issues with older clients and "
+"servers. Hence, the current version of Traffic Server does not coalesce "
+"duplicate fields. Correctly-behaving plugins should check for the presence "
+"of duplicate fields and iterate over the duplicate fields by using "
+"``TSMimeHdrFieldNextDup``."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:88
+msgid ""
+"To facilitate fast comparisons and reduce storage size, Traffic Server "
+"defines several pre-allocated field names. These field names correspond to "
+"the field names in HTTP and NNTP headers."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:94
+msgid "``TS_MIME_FIELD_ACCEPT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:93
+msgid "\"Accept\" ``TS_MIME_LEN_ACCEPT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:98
+msgid "``TS_MIME_FIELD_ACCEPT_CHARSET``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:97
+msgid "\"Accept-Charset\" ``TS_MIME_LEN_ACCEPT_CHARSET``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:102
+msgid "``TS_MIME_FIELD_ACCEPT_ENCODING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:101
+msgid "\"Accept-Encoding\" ``TS_MIME_LEN_ACCEPT_ENCODING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:106
+msgid "``TS_MIME_FIELD_ACCEPT_LANGUAGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:105
+msgid "\"Accept-Language\" ``TS_MIME_LEN_ACCEPT_LANGUAGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:110
+msgid "``TS_MIME_FIELD_ACCEPT_RANGES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:109
+msgid "\"Accept-Ranges\" ``TS_MIME_LEN_ACCEPT_RANGES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:114
+msgid "``TS_MIME_FIELD_AGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:113
+msgid "\"Age\" ``TS_MIME_LEN_AGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:118
+msgid "``TS_MIME_FIELD_ALLOW``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:117
+msgid "\"Allow\" ``TS_MIME_LEN_ALLOW``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:122
+msgid "``TS_MIME_FIELD_APPROVED``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:121
+msgid "\"Approved\" ``TS_MIME_LEN_APPROVED``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:126
+msgid "``TS_MIME_FIELD_AUTHORIZATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:125
+msgid "\"Authorization\" ``TS_MIME_LEN_AUTHORIZATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:130
+msgid "``TS_MIME_FIELD_BYTES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:129
+msgid "\"Bytes\" ``TS_MIME_LEN_BYTES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:134
+msgid "``TS_MIME_FIELD_CACHE_CONTROL``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:133
+msgid "\"Cache-Control\" ``TS_MIME_LEN_CACHE_CONTROL``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:138
+msgid "``TS_MIME_FIELD_CLIENT_IP``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:137
+msgid "\"Client-ip\" ``TS_MIME_LEN_CLIENT_IP``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:142
+msgid "``TS_MIME_FIELD_CONNECTION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:141
+msgid "\"Connection\" ``TS_MIME_LEN_CONNECTION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:146
+msgid "``TS_MIME_FIELD_CONTENT_BASE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:145
+msgid "\"Content-Base\" ``TS_MIME_LEN_CONTENT_BASE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:150
+msgid "``TS_MIME_FIELD_CONTENT_ENCODING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:149
+msgid "\"Content-Encoding\" ``TS_MIME_LEN_CONTENT_ENCODING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:154
+msgid "``TS_MIME_FIELD_CONTENT_LANGUAGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:153
+msgid "\"Content-Language\" ``TS_MIME_LEN_CONTENT_LANGUAGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:158
+msgid "``TS_MIME_FIELD_CONTENT_LENGTH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:157
+msgid "\"Content-Length\" ``TS_MIME_LEN_CONTENT_LENGTH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:162
+msgid "``TS_MIME_FIELD_CONTENT_LOCATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:161
+msgid "\"Content-Location\" ``TS_MIME_LEN_CONTENT_LOCATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:166
+msgid "``TS_MIME_FIELD_CONTENT_MD5``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:165
+msgid "\"Content-MD5\" ``TS_MIME_LEN_CONTENT_MD5``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:170
+msgid "``TS_MIME_FIELD_CONTENT_RANGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:169
+msgid "\"Content-Range\" ``TS_MIME_LEN_CONTENT_RANGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:174
+msgid "``TS_MIME_FIELD_CONTENT_TYPE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:173
+msgid "\"Content-Type\" ``TS_MIME_LEN_CONTENT_TYPE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:178
+msgid "``TS_MIME_FIELD_CONTROL``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:177
+msgid "\"Control\" ``TS_MIME_LEN_CONTROL``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:182
+msgid "``TS_MIME_FIELD_COOKIE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:181
+msgid "\"Cookie\" ``TS_MIME_LEN_COOKIE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:186
+msgid "``TS_MIME_FIELD_DATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:185
+msgid "\"Date\" ``TS_MIME_LEN_DATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:190
+msgid "``TS_MIME_FIELD_DISTRIBUTION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:189
+msgid "\"Distribution\" ``TS_MIME_LEN_DISTRIBUTION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:194
+msgid "``TS_MIME_FIELD_ETAG``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:193
+msgid "\"Etag\" ``TS_MIME_LEN_ETAG``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:198
+msgid "``TS_MIME_FIELD_EXPECT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:197
+msgid "\"Expect\" ``TS_MIME_LEN_EXPECT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:202
+msgid "``TS_MIME_FIELD_EXPIRES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:201
+msgid "\"Expires\" ``TS_MIME_LEN_EXPIRES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:206
+msgid "``TS_MIME_FIELD_FOLLOWUP_TO``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:205
+msgid "\"Followup-To\" ``TS_MIME_LEN_FOLLOWUP_TO``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:210
+msgid "``TS_MIME_FIELD_FROM``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:209
+msgid "\"From\" ``TS_MIME_LEN_FROM``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:214
+msgid "``TS_MIME_FIELD_HOST``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:213
+msgid "\"Host\" ``TS_MIME_LEN_HOST``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:218
+msgid "``TS_MIME_FIELD_IF_MATCH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:217
+msgid "\"If-Match\" ``TS_MIME_LEN_IF_MATCH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:222
+msgid "``TS_MIME_FIELD_IF_MODIFIED_SINCE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:221
+msgid "\"If-Modified-Since\" ``TS_MIME_LEN_IF_MODIFIED_SINCE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:226
+msgid "``TS_MIME_FIELD_IF_NONE_MATCH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:225
+msgid "\"If-None-Match\" ``TS_MIME_LEN_IF_NONE_MATCH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:230
+msgid "``TS_MIME_FIELD_IF_RANGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:229
+msgid "\"If-Range\" ``TS_MIME_LEN_IF_RANGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:234
+msgid "``TS_MIME_FIELD_IF_UNMODIFIED_SINCE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:233
+msgid "\"If-Unmodified-Since\" ``TS_MIME_LEN_IF_UNMODIFIED_SINCE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:238
+msgid "``TS_MIME_FIELD_KEEP_ALIVE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:237
+msgid "\"Keep-Alive\" ``TS_MIME_LEN_KEEP_ALIVE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:242
+msgid "``TS_MIME_FIELD_KEYWORDS``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:241
+msgid "\"Keywords\" ``TS_MIME_LEN_KEYWORDS``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:246
+msgid "``TS_MIME_FIELD_LAST_MODIFIED``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:245
+msgid "\"Last-Modified\" ``TS_MIME_LEN_LAST_MODIFIED``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:250
+msgid "``TS_MIME_FIELD_LINES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:249
+msgid "\"Lines\" ``TS_MIME_LEN_LINES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:254
+msgid "``TS_MIME_FIELD_LOCATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:253
+msgid "\"Location\" ``TS_MIME_LEN_LOCATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:258
+msgid "``TS_MIME_FIELD_MAX_FORWARDS``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:257
+msgid "\"Max-Forwards\" ``TS_MIME_LEN_MAX_FORWARDS``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:262
+msgid "``TS_MIME_FIELD_MESSAGE_ID``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:261
+msgid "\"Message-ID\" ``TS_MIME_LEN_MESSAGE_ID``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:266
+msgid "``TS_MIME_FIELD_NEWSGROUPS``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:265
+msgid "\"Newsgroups\" ``TS_MIME_LEN_NEWSGROUPS``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:270
+msgid "``TS_MIME_FIELD_ORGANIZATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:269
+msgid "\"Organization\" ``TS_MIME_LEN_ORGANIZATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:274
+msgid "``TS_MIME_FIELD_PATH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:273
+msgid "\"Path\" ``TS_MIME_LEN_PATH``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:278
+msgid "``TS_MIME_FIELD_PRAGMA``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:277
+msgid "\"Pragma\" ``TS_MIME_LEN_PRAGMA``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:282
+msgid "``TS_MIME_FIELD_PROXY_AUTHENTICATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:281
+msgid "\"Proxy-Authenticate\" ``TS_MIME_LEN_PROXY_AUTHENTICATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:286
+msgid "``TS_MIME_FIELD_PROXY_AUTHORIZATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:285
+msgid "\"Proxy-Authorization\" ``TS_MIME_LEN_PROXY_AUTHORIZATION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:290
+msgid "``TS_MIME_FIELD_PROXY_CONNECTION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:289
+msgid "\"Proxy-Connection\" ``TS_MIME_LEN_PROXY_CONNECTION``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:294
+msgid "``TS_MIME_FIELD_PUBLIC``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:293
+msgid "\"Public\" ``TS_MIME_LEN_PUBLIC``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:298
+msgid "``TS_MIME_FIELD_RANGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:297
+msgid "\"Range\" ``TS_MIME_LEN_RANGE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:302
+msgid "``TS_MIME_FIELD_REFERENCES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:301
+msgid "\"References\" ``TS_MIME_LEN_REFERENCES``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:306
+msgid "``TS_MIME_FIELD_REFERER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:305
+msgid "\"Referer\" ``TS_MIME_LEN_REFERER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:310
+msgid "``TS_MIME_FIELD_REPLY_TO``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:309
+msgid "\"Reply-To\" ``TS_MIME_LEN_REPLY_TO``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:314
+msgid "``TS_MIME_FIELD_RETRY_AFTER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:313
+msgid "\"Retry-After\" ``TS_MIME_LEN_RETRY_AFTER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:318
+msgid "``TS_MIME_FIELD_SENDER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:317
+msgid "\"Sender\" ``TS_MIME_LEN_SENDER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:322
+msgid "``TS_MIME_FIELD_SERVER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:321
+msgid "\"Server\" ``TS_MIME_LEN_SERVER``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:326
+msgid "``TS_MIME_FIELD_SET_COOKIE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:325
+msgid "\"Set-Cookie\" ``TS_MIME_LEN_SET_COOKIE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:330
+msgid "``TS_MIME_FIELD_SUBJECT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:329
+msgid "\"Subject\" ``TS_MIME_LEN_SUBJECTTS_MIME_LEN_SUBJECT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:334
+msgid "``TS_MIME_FIELD_SUMMARY``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:333
+msgid "\"Summary\" ``TS_MIME_LEN_SUMMARY``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:338
+msgid "``TS_MIME_FIELD_TE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:337
+msgid "\"TE\" ``TS_MIME_LEN_TE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:342
+msgid "``TS_MIME_FIELD_TRANSFER_ENCODING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:341
+msgid "\"Transfer-Encoding\" ``TS_MIME_LEN_TRANSFER_ENCODING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:346
+msgid "``TS_MIME_FIELD_UPGRADE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:345
+msgid "\"Upgrade\" ``TS_MIME_LEN_UPGRADE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:350
+msgid "``TS_MIME_FIELD_USER_AGENT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:349
+msgid "\"User-Agent\" ``TS_MIME_LEN_USER_AGENT``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:354
+msgid "``TS_MIME_FIELD_VARY``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:353
+msgid "\"Vary\" ``TS_MIME_LEN_VARY``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:358
+msgid "``TS_MIME_FIELD_VIA``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:357
+msgid "\"Via\" ``TS_MIME_LEN_VIA``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:362
+msgid "``TS_MIME_FIELD_WARNING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:361
+msgid "\"Warning\" ``TS_MIME_LEN_WARNING``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:366
+msgid "``TS_MIME_FIELD_WWW_AUTHENTICATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:365
+msgid "\"Www-Authenticate\" ``TS_MIME_LEN_WWW_AUTHENTICATE``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:370
+msgid "``TS_MIME_FIELD_XREF``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:369
+msgid "\"Xref\" ``TS_MIME_LEN_XREF``"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:372
+msgid ""
+"The header field names above are defined in ``ts.h`` as ``const char*`` "
+"strings. When Traffic Server sets the name portion of a header field (or "
+"any portion for that matter), it quickly checks to see if the new value is "
+"one of the known values. If it is, then Traffic Server stores a pointer "
+"into a global table instead of storing the known value in the marshal "
+"buffer. The header field names listed above are also pointers into this "
+"table, which enables simple pointer comparison of the value returned from "
+"``TSMimeHdrFieldNameGet`` with one of the values listed above. It is "
+"recommended that you use the above values when referring to one of the "
+"known header field names to avoid the possibility of a spelling error."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:384
+msgid ""
+"Traffic Server adds one important feature to MIME fields that you may not "
+"know about: Traffic Server does not print a MIME field if the field name "
+"begins with the '``@``\\ ' symbol. For example: a plugin can add the field "
+"\"``@My-Field``\\ \" to a header. Even though Traffic Server never sends "
+"that field out in a request to an origin server or in a response to a "
+"client, it can be printed to Traffic Server logs by defining a custom log "
+"configuration file that explicitly logs such fields. This provides a useful "
+"mechanism for plugins to store information about an object in one of the "
+"MIME headers associated with the object."
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:394
+msgid "The MIME header functions are listed below:"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:396
+msgid ""
+"```TSMimeHdrFieldAppend`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ae36c9bab9147a30b259d8e0223d697f2>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:397
+msgid ""
+"```TSMimeHdrFieldClone`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ade66cd69ddff40d14b015a9e2cd7b46f>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:398
+msgid ""
+"```TSMimeHdrFieldCopy`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a612ebefde403abc216af99f9150dd66f>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:399
+msgid ""
+"```TSMimeHdrFieldCopyValues`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a5e4b2f68392a26643620641e50e5045b>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:400
+msgid ""
+"```TSMimeHdrFieldCreate`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a7f79c0bea2ce14ced3b017eac08f8916>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:401
+msgid ""
+"```TSMimeHdrFieldDestroy`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a6bf2d8e95e6f3ef351f63dbe8bc54020>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:402
+msgid ""
+"```TSMimeHdrFieldLengthGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a8a906f22ccf7a4a04fac817dc57a785f>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:403
+msgid ""
+"```TSMimeHdrFieldNameGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#ad68f51073e4630ad6a0433efbfeef2ea>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:404
+msgid ""
+"```TSMimeHdrFieldNameSet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a6856f6069fa4ee67d1a788bd642d59f0>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:405
+msgid ""
+"```TSMimeHdrFieldNext`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#aaf3a205e8a4e7128f3fa3de70991df80>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:406
+msgid ""
+"```TSMimeHdrFieldNextDup`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#af2d776615afe959ed7c3639830a7061f>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:407
+#: ../../sdk/http-headers/mime-headers.en.rst:408
+msgid ""
+"```TSMimeHdrFieldValueAppend`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ad1d4d1dda95311e3389245fd9fa961b5>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:409
+msgid ""
+"```TSMimeHdrFieldValueDateGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ad74a60f0da93397ee015d82f30021d15>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:410
+msgid ""
+"```TSMimeHdrFieldValueDateInsert`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#a0520a29de96736b04f14e9d790ec8e9c>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:411
+msgid ""
+"```TSMimeHdrFieldValueDateSet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#abf85e014cb316977dedca38c341d4369>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:412
+msgid ""
+"```TSMimeHdrFieldValueIntGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#ace1fac92d2be75ff7cbd8eb7725d3fac>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:413
+msgid ""
+"```TSMimeHdrFieldValueIntSet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#aec96c5629a750cdaec709228c4bd8a76>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:414
+msgid ""
+"```TSMimeHdrFieldValueStringGet`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#a4aa55cd4eeb9e6d0a5151c02f0c18c28>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:415
+msgid ""
+"```TSMimeHdrFieldValueStringInsert`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#a979d1591becf1c59de830af117d54923>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:416
+msgid ""
+"```TSMimeHdrFieldValueStringSet`` <http://people.apache.org/~amc/ats/doc/"
+"html/ts_8h.html#ac21e44e84b25c23e52ba7bea7bd09ed6>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:417
+msgid ""
+"```TSMimeHdrFieldValueUintGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a116b4c9144ad6eda66213adb0167706a>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:418
+msgid ""
+"```TSMimeHdrFieldValueUintInsert`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#a88db3a90d3ac7766e55c734c89dfe86f>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:419
+msgid ""
+"```TSMimeHdrFieldValueUintSet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a63b0a686b4a6ec6b8a4f1b796009c3cd>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:420
+msgid ""
+"```TSMimeHdrFieldValuesClear`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a8fd3afaf88f6c76793fdb635bbd22113>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:421
+msgid ""
+"```TSMimeHdrFieldValuesCount`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a326283521986acf9b8a9ec00f3d6d164>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:422
+msgid ""
+"```TSMimeHdrClone`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#aa8ab95bda93c3e16e6d134fe35acd1b6>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:423
+msgid ""
+"```TSMimeHdrCopy`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a6e0a392b2e072db8e7f1d795151203b4>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:424
+msgid ""
+"```TSMimeHdrCreate`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a3427dfbd6b79c531fcba4e8c8b4e217d>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:425
+msgid ""
+"```TSMimeHdrDestroy`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a60ad7f4f4f9e2559dcc2ff28ebe8d96c>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:426
+msgid ""
+"```TSMimeHdrFieldFind`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a30e4ce224761b273a119dcd57f5a352b>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:427
+msgid ""
+"```TSMimeHdrFieldGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a31c0c307010a5d19d027ffb3a2656745>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:428
+msgid ""
+"```TSMimeHdrFieldRemove`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a96d9a50d0687456e6e67eb2e9a9c2d72>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:429
+msgid ""
+"```TSMimeHdrFieldsClear`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a65d7539e48c9f5c26075344dee6c6ae2>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:430
+msgid ""
+"```TSMimeHdrFieldsCount`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ab02f7d0cba75cf0146c6a9b507c79fcf>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:431
+msgid ""
+"```TSMimeHdrLengthGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a001cd786282f5c9d04189ddf7c96e269>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:432
+msgid ""
+"```TSMimeHdrParse`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a4a6042bcd5b5b0a21267c03cf102e90d>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:433
+msgid ""
+"```TSMimeParserClear`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ac173b595659d1909aae5410ecd1ce028>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:434
+msgid ""
+"```TSMimeParserCreate`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a518072dc5a90b753df7726878119506b>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:435
+msgid ""
+"```TSMimeParserDestroy`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a5f287f5016d931842c0a5012c3d227b7>`__"
+msgstr ""
+
+#: ../../sdk/http-headers/mime-headers.en.rst:436
+msgid ""
+"```TSMimeHdrPrint`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#adfca8722edc6469df4410b8050406bb0>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-headers/urls.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/urls.en.po
new file mode 100644
index 00000000..d5b91f94
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-headers/urls.en.po
@@ -0,0 +1,229 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-headers/urls.en.rst:2
+msgid "URLs"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:21
+msgid ""
+"API URL functions provide access to URL data stored in marshal buffers. The "
+"URL functions can create, copy, retrieve or delete entire URLs; they can "
+"also retrieve or modify parts of URLs, such as port or scheme information."
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:26
+msgid "The general form of an Internet URL is:"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:33
+msgid ""
+"The URL data structure includes support for two specific types of internet "
+"URLs. HTTP URLs have the form:"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:41
+msgid ""
+"The URL port is stored as integer. All remaining parts of the URL (scheme, "
+"user, etc.) are stored as strings. Traffic Server URL functions are named "
+"according to the portion of the URL on which they operate. For instance, "
+"the function that retrieves the host portion of a URL is named "
+"``TSUrlHostGet``."
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:47
+msgid ""
+"To facilitate fast comparisons and reduce storage size, Traffic Server "
+"defines several preallocated scheme names."
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:52
+msgid "``TS_URL_SCHEME_FILE``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:51
+msgid "\"file\" ``TS_URL_LEN_FILE``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:56
+msgid "``TS_URL_SCHEME_FTP``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:55
+msgid "\"ftp\" ``TS_URL_LEN_FTP``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:60
+msgid "``TS_URL_SCHEME_GOPHER``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:59
+msgid "\"gopher\" ``TS_URL_LEN_GOPHER``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:64
+msgid "``TS_URL_SCHEME_HTTP``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:63
+msgid "\"http\" ``TS_URL_LEN_HTTP``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:68
+msgid "``TS_URL_SCHEME_HTTPS``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:67
+msgid "\"https\" ``TS_URL_LEN_HTTPS``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:72
+msgid "``TS_URL_SCHEME_MAILTO``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:71
+msgid "\"mailto\" ``TS_URL_LEN_MAILTO``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:76
+msgid "``TS_URL_SCHEME_NEWS``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:75
+msgid "\"news\" ``TS_URL_LEN_NEWS``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:80
+msgid "``TS_URL_SCHEME_NNTP``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:79
+msgid "\"nntp\" ``TS_URL_LEN_NNTP``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:84
+msgid "``TS_URL_SCHEME_PROSPERO``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:83
+msgid "\"prospero\" ``TS_URL_LEN_PROSPERO``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:88
+msgid "``TS_URL_SCHEME_TELNET``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:87
+msgid "\"telnet\" ``TS_URL_LEN_TELNET``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:92
+msgid "``TS_URL_SCHEME_WAIS``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:91
+msgid "\"wais\" ``TS_URL_LEN_WAIS``"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:94
+msgid ""
+"The scheme names above are defined in ``ts.h`` as ``const`` ``char*`` "
+"strings. When Traffic Server sets the scheme portion of the URL (or any "
+"portion for that matter), it quickly checks to see if the new value is one "
+"of the known values. If it is, then it stores a pointer into a global table "
+"(instead of storing the known value in the marshal buffer). The scheme "
+"values listed above are also pointers into this table. This allows simple "
+"pointer comparison of the value returned from ``TSUrlSchemeGet`` with one "
+"of the values listed above. You should use the Traffic Server-defined "
+"values when referring to one of the known schemes, since doing so can "
+"prevent the possibility of spelling errors."
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:105
+msgid "Traffic Server **URL functions** are listed below:"
+msgstr ""
+
+#: ../../sdk/http-headers/urls.en.rst:107
+msgid ""
+"```TSUrlClone`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#acb775f48f1da5f6c5bf32c833a236574>`__ ```TSUrlCopy`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#aa2b8d5f9289a23ab985210914a6301a7>`__ ```TSUrlCreate`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#ad3518ea3bca6a6f2d899b859c6fbbede>`__ ```TSUrlDestroy`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a87559aac42f4f9439399ba2bd32693fa>`__ ```TSUrlPrint`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#adec26f5a4afe62b4308dd86f97ae08fd>`__ ```TSUrlFtpTypeGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a5cd15d2c288a48b832f0fc096ed6fb80>`__ ```TSUrlFtpTypeSet`` <http://"
+"people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a66df700e23085cabf945e92eb1e22890>`__ ```TSUrlHostGet`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a48e626d9497d4d81c0b9d2781f86066b>`__ ```TSUrlHostSet`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a7e550dac573f5780f7ba39509aa881f3>`__ ```TSUrlHttpFragmentGet`` "
+"<http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a316696ad964cb6c6afb7e3028da3ef84>`__ ```TSUrlHttpFragmentSet`` "
+"<http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a45f7b216882c4517b92929145adf5424>`__ ```TSUrlHttpParamsGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a9395d5d794078c8ec0f17f27dc8d8498>`__ ```TSUrlHttpParamsSet`` <http://"
+"people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a566f2996d36663e3eb8ed4a8fda738c3>`__ ```TSUrlHttpQueryGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a74a6c51ea9f472cf29514facbf897785>`__ ```TSUrlHttpQuerySet`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a9846aaf11accd8c817fff48bfaa784e0>`__ ```TSUrlLengthGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a96ded2567985b187c0a8274d76d12c17>`__ ```TSUrlParse`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a17f785697773b62b1f5094c06896cac5>`__ ```TSUrlPasswordGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a14614f77e0c15b206bab8fd6fdfa7bd1>`__ ```TSUrlPasswordSet`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#abb4d983b9d47ba5a254c2b9dd9ad835e>`__ ```TSUrlPathGet`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#aa064a2d5256d839819d1ec8f252c01a9>`__ ```TSUrlPathSet`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#ad73274cb5b7e98a64d53f992681110b7>`__ ```TSUrlPortGet`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#ad99bfb408a46f47c4aa9478fc1b95e0c>`__ ```TSUrlPortSet`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#aab07c0482fc3c3aae1b545fb0104e3aa>`__ ```TSUrlSchemeGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a24c660b5b46f17b24d7a1cc9aa9a4930>`__ ```TSUrlSchemeSet`` <http://"
+"people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a03b1a806ea8d79806dfff39bfe138934>`__ ```TSUrlStringGet`` <http://"
+"people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a1cda3103d8dd59372609aed6c9c47417>`__ ```TSUrlUserGet`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#a3c4d7ffcbbda447c3b665dc857a3226b>`__ ```TSUrlUserSet`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a3175e9c89c2bbea5ed50e2a7f52d7f9f>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions.en.po
new file mode 100644
index 00000000..fb29d047
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions.en.po
@@ -0,0 +1,104 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:2
+msgid "HTTP Hooks and Transactions"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:21
+msgid ""
+"Hooks are points in Traffic Server transaction processing where plugins can "
+"step in and do some work. Registering a plugin function for callback "
+"amounts to \"adding\" the function to a hook. You can register your plugin "
+"to be called back for every single transaction or only for specific "
+"transactions."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:27
+msgid "This chapter contains the following sections:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:40
+msgid "The Set of Hooks"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:42
+msgid ""
+"To understand hooks and transactions, you should be familiar with the "
+"following terminology:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:48
+msgid ""
+"A **transaction** consists of a single HTTP request from a client and the "
+"response Traffic Server sends to that client. Thus, a transaction begins "
+"when Traffic Server receives a request and ends when Traffic Server sends "
+"the response."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:71
+msgid ""
+"A **session** consists of a single client connection to Traffic Server; it "
+"may consist of a single transaction or several transactions in succession. "
+"The session starts when the client connection opens and ends when the "
+"connection closes."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:79
+msgid "HTTP Transaction State Diagram"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:46
+msgid "HTTP Transaction"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:53
+msgid ""
+"Traffic Server uses **HTTP state machines** to process transactions. The "
+"state machines follow a complex set of states involved in sophisticated "
+"caching and document retrieval (taking into account, for example, alternate "
+"selection, freshness criteria, and hierarchical caching). The Traffic "
+"Server API provides hooks to a subset of these states, as illustrated in "
+"the :ref:`http-txn-state-diagram` below."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:61
+msgid "Transform hooks"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:63
+msgid ""
+"The two **transform hooks**, ``TS_HTTP_REQUEST_TRANSFORM_HOOK`` and "
+"``TS_HTTP_RESPONSE_TRANSFORM_HOOK``, are called in the course of an HTTP "
+"transform. To see where in the HTTP transaction they are called, look for "
+"the \"set up transform\" ovals in the :ref:`http-txn-state-diagram` below."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions.en.rst:69
+msgid "HTTP session"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/adding-hooks.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/adding-hooks.en.po
new file mode 100644
index 00000000..5d1ba3b6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/adding-hooks.en.po
@@ -0,0 +1,280 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:2
+msgid "Adding Hooks"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:21
+msgid "There are several ways to add hooks to your plugin."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:23
+msgid ""
+"**Global HTTP hooks** HTTP transaction hooks are set on a global basis "
+"using the function ``TSHttpHookAdd``. This means that the continuation "
+"specified as the parameter to ``TSHttpHookAdd`` is called for every "
+"transaction. ``TSHttpHookAdd`` must be used in ``TSPluginInit``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:29
+msgid ""
+"**Transaction hooks** Transaction hooks can be used to call plugins back "
+"for a specific HTTP transaction. You cannot add transaction hooks in "
+"``TSPluginInit``; you first need a handle to a transaction. See `Accessing "
+"the Transaction Being Processed <../header-based-plugin-examples/blacklist-"
+"plugin/accessing-the-transaction-being-processed>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:35
+msgid ""
+"**Transformation hooks** Transformation hooks are a special case of "
+"transaction hooks. See ```TSVConnCacheObjectSizeGet`` <http://people.apache."
+"org/~amc/ats/doc/html/ts_8h.html#af5ca2c5b00e4859d2fa5dec466dfd058>`__ for "
+"more information about transformation hooks. You add a transformation hook "
+"using ``TSHttpTxnHookAdd``, as described in `HTTP Transactions "
+"<HTTP_Transactions.html>`__."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:42
+msgid ""
+"**Session hooks** An HTTP session starts when a client opens a connection "
+"to Traffic Server and ends when the connection closes. A session can "
+"consist of several transactions. Session hooks enable you to hook your "
+"plugin to a particular point in every transaction within a specified "
+"session (see `HTTP Sessions <HTTPSessions.html>`__). Session hooks are "
+"added in a manner similar to transaction hooks (ie, you first need a handle "
+"to an HTTP session)."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:50
+msgid ""
+"**HTTP select alternate hook** Alternate selection hooks enable you to hook "
+"on to the alternate selection state. These hooks must be added globally, "
+"since Traffic Server does not have a handle to a transaction or session "
+"when alternate selection is taking place. See `HTTP Alternate Selection "
+"<HTTPAlternateSelection.html>`__ for information on the alternate selection "
+"mechanism."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:57
+msgid ""
+"All of the hook addition functions (```TSHttpHookAdd`` <http://people."
+"apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a19a663edd3ec439f66256fbbb26cc1db>`__, ```TSHttpSsnHookAdd`` "
+"<HTTPSessionFunctions.html#TSHttpSsnHookAdd>`__, ```TSHttpSsnReenable`` "
+"<HTTPSessionFunctions.html#TSHttpSsnReenable>`__) take ``TSHttpHookID`` "
+"(identifies the hook to add on to) and ``TSCont`` (the basic callback "
+"mechanism in Traffic Server). A single ``TSCont`` can be added to any "
+"number of hooks at a time."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:65
+msgid ""
+"An HTTP hook is identified by the enumerated type ``TSHttpHookID``. The "
+"values for ``TSHttpHookID`` are:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:68
+msgid "**Values for TSHttpHookID**"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:74
+msgid "``TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:71
+msgid ""
+"Called after the HTTP state machine has completed the cache lookup for the "
+"document requested in the ongoing transaction. Register this hook via "
+"``TSHttpTxnHookAdd`` or ``TSHttpHookAdd``. Corresponds to the event "
+"``TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:81
+msgid "``TS_HTTP_OS_DNS_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:77
+msgid ""
+"Called immediately after the HTTP state machine has completed a DNS lookup "
+"of the origin server. The HTTP state machine will know the origin server's "
+"IP address at this point, which is useful for performing both "
+"authentication and blacklisting. Corresponds to the event "
+"``TS_EVENT_HTTP_OS_DNS``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:96
+msgid "``TS_HTTP_READ_CACHE_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:93
+msgid ""
+"Called immediately after the request and response header of a previously-"
+"cached object is read from cache. This hook is only called if the document "
+"is being served from cache. Corresponds to the event "
+"``TS_EVENT_HTTP_READ_CACHE_HDR``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:101
+msgid "``TS_HTTP_READ_RESPONSE_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:99
+msgid ""
+"Called immediately after the response header is read from the origin server "
+"or parent proxy. Corresponds to the event "
+"``TS_EVENT_HTTP_READ_RESPONSE_HDR``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:106
+msgid "``TS_HTTP_RESPONSE_TRANSFORM_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:104
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:113
+msgid ""
+"See \"`\"Transformations\" <../http-transformation-"
+"plugin#Transformations>`__ for information about transformation hooks."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:110
+msgid "``TS_HTTP_READ_REQUEST_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:109
+msgid ""
+"Called immediately after the request header is read from the client. "
+"Corresponds to the event ``TS_EVENT_HTTP_READ_REQUEST_HDR``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:115
+msgid "``TS_HTTP_REQUEST_TRANSFORM_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:119
+msgid "``TS_HTTP_SELECT_ALT_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:118
+msgid ""
+"See `\"HTTP Alternate Selection\" <http-alternate-selection>`__ for "
+"information about the alternate selection mechanism."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:125
+msgid "``TS_HTTP_SEND_RESPONSE_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:122
+msgid ""
+"Called immediately before the proxy's response header is written to the "
+"client; this hook is usually used for modifying the response header. "
+"Corresponds to the event ``TS_EVENT_HTTP_SEND_RESPONSE_HDR``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:132
+msgid "``TS_HTTP_SEND_REQUEST_HDR_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:128
+msgid ""
+"Called immediately before the proxy's request header is sent to the origin "
+"server or the parent proxy. This hook is not called if the document is "
+"being served from cache. This hook is usually used for modifying the "
+"proxy's request header before it is sent to the origin server or parent "
+"proxy."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:136
+msgid "``TS_HTTP_SSN_CLOSE_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:135
+msgid ""
+"Called when an HTTP session ends. A session ends when the client connection "
+"is closed. You can only add this hook as a global hook"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:141
+msgid "``TS_HTTP_SSN_START_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:139
+msgid ""
+"Called when an HTTP session is started. A session starts when a client "
+"connects to Traffic Server. You can only add this hook as a global hook."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:144
+msgid "``TS_HTTP_TXN_CLOSE_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:144
+msgid "Called when an HTTP transaction ends."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:150
+msgid "``TS_HTTP_TXN_START_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:147
+msgid ""
+"Called when an HTTP transaction is started. A transaction starts when "
+"either a client connects to Traffic Server and data is available on the "
+"connection, or a previous client connection that was left open for keep "
+"alive has new data available."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:152
+msgid ""
+"The function you use to add a global HTTP hook is ```TSHttpHookAdd`` "
+"<http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a19a663edd3ec439f66256fbbb26cc1db>`__."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:85
+msgid "``TS_HTTP_POST_REMAP_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:84
+msgid ""
+"Called immediately after remapping occurs, before cache lookup. Corresponds "
+"to the event ``TS_EVENT_HTTP_POST_REMAP``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:90
+msgid "``TS_HTTP_PRE_REMAP_HOOK``"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/adding-hooks.en.rst:88
+msgid ""
+"Called after the request header is read from the client, before any "
+"remapping of the headers occurs. Corresponds to the event "
+"``TS_EVENT_HTTP_PRE_REMAP``."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-alternate-selection.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-alternate-selection.en.po
new file mode 100644
index 00000000..88b545f7
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-alternate-selection.en.po
@@ -0,0 +1,152 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:2
+msgid "HTTP Alternate Selection"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:21
+msgid ""
+"The HTTP alternate selection functions provide a mechanism for hooking into "
+"Traffic Server's alternate selection mechanism and augmenting it with "
+"additional information. **HTTP alternate selection** refers to the process "
+"of choosing between several alternate versions of a document for a specific "
+"URL. Alternates arise because the HTTP 1.1 specification allows different "
+"documents to be sent back for the same URL (depending on the clients "
+"request). For example, a server might send back a GIF image to a client "
+"that only accepts GIF images, and might send back a JPEG image to a client "
+"that only accepts JPEG images."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:31
+msgid ""
+"The alternate selection mechanism is invoked when Traffic Server looks up a "
+"URL in its cache. For each URL, Traffic Server stores a vector of "
+"alternates. For each alternate in this vector, Traffic Server computes a "
+"quality value between 0 and 1 that represents how \"good\" the alternate "
+"is. A quality value of 0 means that the alternate is unacceptable; a value "
+"of 1 means that the alternate is a perfect match."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:38
+msgid ""
+"If a plugin hooks onto the ``TS_HTTP_SELECT_ALT_HOOK``, then it will be "
+"called back when Traffic Server performs alternate selection. You cannot "
+"register locally to the hook ``TS_HTTP_SELECT_ALT_HOOK`` by using "
+"``TSHttpTxnHookAdd`` - you can only do so by using only ``TSHttpHookAdd``. "
+"Since Traffic Server does not actually have an HTTP transaction or an HTTP "
+"session on hand when alternate selection is performed, it is only valid to "
+"hook onto the global list of ``TS_HTTP_SELECT_ALT_HOOK``. Traffic Server "
+"calls each of the select alternate hooks with the "
+"``TS_EVENT_HTTP_SELECT_ALT`` event. The ``void *edata`` argument that is "
+"passed to the continuation is a pointer to an ``TSHttpAltInfo`` structure. "
+"It can be used later to call the HTTP alternate selection functions listed "
+"at the end of this section. Unlike other hooks, this alternate selection "
+"callout is non-blocking; the expectation is that the quality value for the "
+"alternate will be changed by a call to ``TSHttpAltInfoQualitySet``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:56
+msgid ""
+"HTTP SM does not have to be reenabled using ``TSHttpTxnReenable`` or any "
+"other APIs; just return from the function."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:59
+msgid "The sample code below shows how to call the alternate APIs."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:157
+msgid ""
+"Traffic Server augments the alternate selection through these callouts "
+"using the following algorithm:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:160
+msgid ""
+"Traffic Server computes its own quality value for the alternate, taking "
+"into account the quality of the accept match, the encoding match, and the "
+"language match."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:164
+msgid ""
+"Traffic Server then calls out each of the continuations on the global "
+"``TS_HTTP_SELECT_ALT_HOOK``'s list."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:167
+msgid ""
+"It multiplies its quality value with the value returned by each callout. "
+"Since all of the values are clamped to be between 0 and 1, the final value "
+"will be between 0 and 1 as well."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:171
+msgid ""
+"This algorithm also ensures that a single callout can block the usage of a "
+"given alternate by specifying a quality value of 0."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:174
+msgid ""
+"A common usage for the alternate selection mechanism is when a plugin "
+"transforms a document for some clients and not for others, but wants to "
+"store both the transformed and unchanged document. The client's request "
+"will specify whether it accepted the transformed document. The plugin will "
+"then determine if the alternate matches this specification and then set the "
+"appropriate quality level for the alternate."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:181
+msgid "The HTTP alternate selection functions are:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:183
+msgid ""
+"`TSHttpAltInfoCachedReqGet <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#af4f3a56716e3e97afd582c7fdb14bcb7>`_"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:185
+msgid ""
+"`TSHttpAltInfoCachedRespGet <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#aff5861ae4a4a7a6ce7b2d669c113b3bb>`_"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:187
+msgid ""
+"`TSHttpAltInfoClientReqGet <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a74d494c6442b6012d8385e92f0e14dee>`_"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-alternate-selection.en.rst:189
+msgid ""
+"`TSHttpAltInfoQualitySet <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a978b7160a048491d5698e0f4c0c79aad>`_"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-sessions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-sessions.en.po
new file mode 100644
index 00000000..9e44e857
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-sessions.en.po
@@ -0,0 +1,90 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:2
+msgid "HTTP Sessions"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:21
+msgid ""
+"An **HTTP session** is an object that is defined for the lifetime of a "
+"client's TCP session. The Traffic Server API enables you to add a global "
+"hook to the start or end of an HTTP session, as well as add session hooks "
+"that call back your plugin for every transaction within a given session. "
+"When a client connects to Traffic Server, it opens up a TCP connection and "
+"sends one or more HTTP requests. An individual request and its response "
+"comprise the HTTP transaction. The **HTTP session** begins when the client "
+"opens the connection and ends when the connection closes."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:31
+msgid "The HTTP session hooks are:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:33
+msgid ""
+"``TS_HTTP_SSN_START_HOOK`` Called when an HTTP session is started (a "
+"session starts when a client connects to Traffic Server). This hook must be "
+"added as a global hook."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:37
+msgid ""
+"``TS_HTTP_SSN_CLOSE_HOOK`` Called when an HTTP session ends (a session ends "
+"when the client connection is closed). This hook must be added as a global "
+"hook."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:41
+msgid ""
+"Use the session hooks to get a handle to a session (an ``TSHttpSsn`` "
+"object). If you want your plugin to be called back for each transaction "
+"within the session, then use ``TSHttpSsnHookAdd``."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:45
+msgid ""
+"**Note:** you must reenable the session with ``TSHttpSsnReenable`` after "
+"processing a session hook."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:48
+msgid "The session hook functions are listed below:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:50
+msgid ""
+"```TSHttpSsnHookAdd`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a268d493d94fa5461c8200883a9b8d20b>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-sessions.en.rst:51
+msgid ""
+"```TSHttpSsnReenable`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a3bbe42bf4757625bdb8bb65e7ac6f52d>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-transactions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-transactions.en.po
new file mode 100644
index 00000000..f2911878
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/http-transactions.en.po
@@ -0,0 +1,185 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:2
+msgid "HTTP Transactions"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:21
+msgid ""
+"The HTTP transaction functions enable you to set up plugin callbacks to "
+"HTTP transactions and obtain/modify information about particular HTTP "
+"transactions."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:25
+msgid ""
+"As described in the section on HTTP sessions, an **HTTP transaction** is an "
+"object defined for the lifetime of a single request from a client and the "
+"corresponding response from Traffic Server. The **``TSHttpTxn``** structure "
+"is the main handle given to a plugin for manipulating a transaction's "
+"internal state. Additionally, an HTTP transaction has a reference back to "
+"the HTTP session that created it."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:32
+msgid ""
+"The sample code below illustrates how to register locally to a transaction "
+"and associate data to the transaction."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:152
+msgid ""
+"See `Adding Hooks <adding-hooks>`__ for background about HTTP transactions "
+"and HTTP hooks, as well as `HTTP Hooks and Transactions <../http-hooks-and-"
+"transactions>`__ Also see the [HTTP Transaction State Diagram ]"
+"(HTTPHooksAndTransactions.html(../http-hooks-and-"
+"transactions#HHTTPTxStateDiag) for an illustration of the steps involved in "
+"a typical HTTP transaction."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:159
+msgid "The HTTP transaction functions are:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:161
+msgid ""
+"```TSHttpTxnCacheLookupStatusGet`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#ad26c77fa4ba251fb8ccbbd1505a74687>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:163
+msgid ""
+"```TSHttpTxnCachedReqGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a889b626142157077f4f3cfe479e8b8e2>`__ - Note that it is an "
+"error to modify cached headers."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:166
+msgid ""
+"```TSHttpTxnCachedRespGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ae8f24b8dabb5008ad11620a11682ffd6>`__ - Note that it is an "
+"error to modify cached headers."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:169
+msgid "`TSHttpTxnClientIncomingPortGet <link/to/doxygen>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:171
+msgid "`TSHttpTxnClientIPGet <link/to/doxygen>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:173
+msgid "`TSHttpTxnClientRemotePortGet <link/to/doxygen>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:175
+msgid ""
+"```TSHttpTxnClientReqGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#acca66f22d0f87bf8f08478ed926006a5>`__ - Plugins that must "
+"read client request headers use this call to retrieve the HTTP header."
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:179
+msgid ""
+"```TSHttpTxnClientRespGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a92349c8363f72b1f6dfed3ae80901fff>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:181
+msgid ""
+"```TSHttpTxnErrorBodySet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ad7efc431279dc97de4b50a58d4ed33c1>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:183
+msgid ""
+"```TSHttpTxnHookAdd`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a10382b88145bbfba0fa9d8ed6402f4b1>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:185
+msgid ""
+"```TSHttpTxnNextHopAddrGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#aa0118beabfefe35d2642f007ac7afa97>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:187
+msgid ""
+"```TSHttpTxnParentProxySet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a2a1260b900b665d38a262544446b886c>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:189
+msgid ""
+"```TSHttpTxnReenable`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ac367347e02709ac809994dfb21d3288a>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:191
+msgid ""
+"```TSHttpTxnServerAddrGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a63917ec11275c4f1ed559362865cd65f>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:193
+msgid ""
+"```TSHttpTxnServerReqGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#aac2343a8b47bf9150f3ff7cd4e692d57>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:195
+msgid ""
+"```TSHttpTxnServerRespGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a39e8bfb199eadabb54c067ff25a9a400>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:197
+msgid ""
+"```TSHttpTxnSsnGet`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a8c5190bd2e940ef2d1969a5be65f0edd>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:199
+msgid ""
+"```TSHttpTxnTransformedRespCache`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#a213b584cd04001e8f8ad509d187a4103>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:201
+msgid ""
+"```TSHttpTxnTransformRespGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a4fc46502733adcff09587a436e300114>`__"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/http-transactions.en.rst:203
+msgid ""
+"```TSHttpTxnUntransformedRespCache`` <http://people.apache.org/~amc/ats/doc/"
+"html/InkAPI_8cc.html#a8b9c0e61cbcb251417df0d06ae6c4408>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/initiate-http-connection.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/initiate-http-connection.en.po
new file mode 100644
index 00000000..be298f78
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/initiate-http-connection.en.po
@@ -0,0 +1,43 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions/initiate-http-connection.en.rst:2
+msgid "Initiate HTTP Connection"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/initiate-http-connection.en.rst:21
+msgid ""
+"This function enables plugins to initiate HTTP transactions. The initiate "
+"HTTP connection function is:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/initiate-http-connection.en.rst:24
+msgid ""
+"```TSHttpConnect`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a2b45aa63ac1353b4c52123110197b61e>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/intercepting-http-transactions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/intercepting-http-transactions.en.po
new file mode 100644
index 00000000..ec94b0c7
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-hooks-and-transactions/intercepting-http-transactions.en.po
@@ -0,0 +1,47 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-hooks-and-transactions/intercepting-http-transactions.en.rst:2
+msgid "Intercepting HTTP Transactions"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/intercepting-http-transactions.en.rst:21
+msgid ""
+"The intercepting HTTP transaction functions enable plugins to intercept "
+"transactions either after the request is received or upon contact with the "
+"origin server. The plugin then acts as the origin server using the "
+"``TSVConn`` interface. The intercepting HTTP transaction function allow for "
+"reading ``POST`` bodies in plugins as well as using alternative transports "
+"to the origin server.The intercepting HTTP transaction functions are:"
+msgstr ""
+
+#: ../../sdk/http-hooks-and-transactions/intercepting-http-transactions.en.rst:29
+msgid ""
+"```TSHttpTxnIntercept`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a3408017633f95161e2ab4fa175c44fa3>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin.en.po
new file mode 100644
index 00000000..6e8fde76
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin.en.po
@@ -0,0 +1,199 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-transformation-plugin.en.rst:4
+msgid "HTTP Transformation Plugins"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:23
+msgid ""
+"Transform plugins examine or transform HTTP message body content. For "
+"example, transform plugins can:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:26
+msgid "Append text to HTML documents"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:28
+msgid "Compress images"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:30
+msgid "Do virus checking (on client ``POST`` data or server response data)"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:32
+msgid ""
+"Do content-based filtering (filter out HTML documents that contain certain "
+"terms or expressions)"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:35
+msgid ""
+"This chapter explains how to write transform plugins. The following "
+"examples are discussed in detail:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:46
+msgid "Writing Content Transform Plugins"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:48
+msgid ""
+"Content transformation plugins transform HTTP response content (such as "
+"images or HTML documents) and HTTP request content (such as client ``POST`` "
+"data). Because the data stream to be transformed is of variable length, "
+"these plugins must use a mechanism that passes data from buffer to buffer "
+"*and* checks to see if the end of the data stream is reached. This "
+"mechanism is provided by virtual connections (``VConnection``\\ s) and "
+"virtual IO descriptors (``VIO``\\ s)."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:56
+msgid ""
+"A ``VConnection`` is an abstraction for a data pipe that allows its users "
+"to perform asynchronous reads and writes without knowing the underlying "
+"implementation. A transformation is a specific type of ``VConnection``. A "
+"**transformation** connects an input data source and an output data sink; "
+"this feature enables it to view and modify all the data passing through it."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:63
+msgid ""
+"Transformations can be chained together, one after the other, so that "
+"multiple transformations can be performed on the same content. The "
+"``VConnection`` type, ``TSVConn``, is actually a subclass of ``TSCont``, "
+"which means that ``VConnection``\\ s (and transformations) are "
+"continuations. ``VConnection``\\ s and transformations can thus exchange "
+"events, informing one another that data is available for reading or "
+"writing, or that the end of a data stream is reached."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:71
+msgid ""
+"A ``VIO`` is a description of an IO operation that is in progress. Every "
+"``VConnection`` has an associated *input VIO* and an associated *output "
+"VIO*. When ``VConnection``\\ s are transferring data to one another, one "
+"``VConnection``'s input ``VIO`` is another ``VConnection``'s output "
+"``VIO``. A ``VConnection``'s input ``VIO`` is also called its **write "
+"``VIO``** because the input ``VIO`` refers to a write operation performed "
+"on the ``VConnection`` itself. Similarly, the outpt ``VIO`` is also called "
+"the **read ``VIO``**. For transformations, which are designed to pass data "
+"in one direction, you can picture the relationship between the "
+"transformation ``VConnection`` and its ``VIO``\\ s as follows:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:83
+msgid "**Transformation and its ``VIO``\\ s** {#TransformationAndVIOs}"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:88
+msgid "A Transformation and its VIOs"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:90
+msgid ""
+"Because the Traffic Server API places transformations directly in the "
+"response or request data stream, the transformation ``VConnection`` is "
+"responsible only for reading the data from the input buffer, transforming "
+"it, and then writing it to the output buffer. The upstream ``VConnection`` "
+"writes the incoming data to the transformation's input buffer. In the "
+"figure above, `A Transformation and its ``VIO``\\ s "
+"<#TransformationAndVIOs>`__, the input ``VIO`` describes the progress of "
+"the upstream ``VConnection``'s write operation on the transformation, while "
+"the output ``VIO`` describes the progress of the transformation's write "
+"operation on the output (downstream) ``VConnection``. The **nbytes** value "
+"in the ``VIO`` is the total number of bytes to be written. The **ndone** "
+"value is the current progress, or the number of bytes that have been "
+"written at a specific point in time."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:104
+msgid ""
+"When writing a transformation plugin, you must understand implementation as "
+"well as the use of ``VConnection``\\ s. The *implementor's side* refers to "
+"how to implement a ``VConnection`` that others can use. At minimum, a "
+"transform plugin creates a transformation that sits in the data stream and "
+"must be able to handle the events that the upstream and downstream "
+"``VConnection``\\ s send to it. The *user's side* refers to how to use a "
+"``VConnection`` to read or write data. At the very least, transformations "
+"output (write) data."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:114
+msgid "Transformations"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:117
+msgid "VIOs"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:119
+msgid ""
+"A ``VIO``*or virtual IO is a description of an in progress IO operation. "
+"The ``VIO`` data structure is used by ``VConnection`` users to determine "
+"how much progress has been made on a particular IO operation, and to "
+"reenable an IO operation when it stalls due to buffer space. "
+"``VConnection`` implementors use ``VIO``\\ s to determine the buffer for an "
+"IO operation, how much work to do on the IO operation, and which "
+"continuation to call back when progress on the IO operation is made."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:128
+msgid ""
+"The ``TSVIO`` data structure itself is opaque, but it might have been "
+"defined as follows:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:143
+msgid "IO Buffers"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:145
+msgid ""
+"The **IO buffer** data structure is the building block of the "
+"``VConnection`` abstraction. An IO buffer is composed of a list of buffer "
+"blocks which, in turn, point to buffer data. Both the *buffer block* "
+"(``TSIOBufferBlock``) and *buffer data* (``TSIOBufferData``) data "
+"structures are reference counted so they can reside in multiple buffers at "
+"the same time. This makes it extremely efficient to copy data from one IO "
+"buffer to another using ``TSIOBufferCopy``, since Traffic Server only needs "
+"to copy pointers and adjust reference counts appropriately (instead of "
+"actually copying any data)."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin.en.rst:155
+msgid ""
+"The IO buffer abstraction provides for a single writer and multiple "
+"readers. In order for the readers to have no knowledge of each other, they "
+"manipulate IO buffers through the\\ ``TSIOBufferReader`` data structure. "
+"Since only a single writer is allowed, there is no corresponding "
+"``TSIOBufferWriter`` data structure. The writer simply modifies the IO "
+"buffer directly."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/append-transform-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/append-transform-plugin.en.po
new file mode 100644
index 00000000..2cba4425
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/append-transform-plugin.en.po
@@ -0,0 +1,223 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:2
+msgid "The Append-Transform Plugin"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:21
+msgid ""
+"The append-transform plugin appends text to the body of an HTTP response. "
+"It obtains this text from a file; the name of the file containing the "
+"append text is a parameter you specify in ``plugin.config``, as follows:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:30
+msgid ""
+"The append-transform plugin is based on ``null-transform.c``. The only "
+"difference is that after the plugin feeds the document through the "
+"transformation, it adds text to the response."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:34
+msgid ""
+"Below is a list of the functions in ``append-transform.c``, in the order "
+"they appear in the source code. Below each entry is a description of what "
+"the function does:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:38
+msgid "**``my_data_alloc``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:40
+msgid ""
+"Allocates and initializes a ``MyData`` structure. The plugin defines a "
+"struct, ``MyData``, as follows:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:53
+msgid ""
+"The ``MyData`` structure is used to represent data that the transformation "
+"(vconnection) needs. The transformation's data pointer is set to a "
+"``MyData`` pointer using ``TSContDataSet`` in the ``handle_transform`` "
+"routine."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:58
+msgid "**``my_data_destroy``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:60
+msgid ""
+"Destroys objects of type ``MyData``. To deallocate the transform's data, "
+"the ``append_transform`` routine (see below) calls ``my_data_destroy`` when "
+"the transformation is complete."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:64
+msgid "**``handle_transform``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:66
+msgid ""
+"This function does the actual data transformation. The transformation is "
+"created in ``transform_add`` (see below). ``handle_transform`` is called by "
+"``append_transform``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:70
+msgid "**``append_transform``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:72
+msgid ""
+"This is the handler function for the transformation vconnection created in "
+"``transform_add``. It is the implementation of the vconnection."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:76
+msgid ""
+"If the transformation vconnection has been closed, then "
+"``append_transform`` calls ``my_data_destroy`` to destroy the vonnection."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:80
+msgid ""
+"If ``append_transform`` receives an error event, then it calls back the "
+"continuation to let it know it has completed the write operation."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:84
+msgid ""
+"If it receives a ``WRITE_COMPLETE`` event, then it shuts down the write "
+"portion of its vconnection."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:87
+msgid ""
+"If it receives a ``WRITE_READY`` or any other event (such as "
+"``TS_HTTP_RESPONSE_TRANSFORM_HOOK``), then it calls ``handle_transform`` to "
+"attempt to transform more data."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:91
+msgid "**``transformable``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:93
+msgid ""
+"The plugin transforms only documents that have a content type of ``text/"
+"html``. This function examines the ``Content-Type`` MIME header field in "
+"the response header. If the value of the MIME field is ``text/html``, then "
+"the function returns 1; otherwise, it returns zero."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:99
+msgid "**``transform_add``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:101
+msgid ""
+"Creates the transformation for the current transaction and sets up a "
+"transformation hook. The handler function for the transformation is "
+"``append_transform``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:105
+msgid "**``transform_plugin``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:107
+msgid ""
+"This is the handler function for the main continuation for the plugin. "
+"Traffic Server calls this function whenever it reads an HTTP response "
+"header. ``transform_plugin`` does the following:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:111
+msgid "Gets a handle to the HTTP transaction being processed"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:113
+msgid ""
+"Calls ``transformable`` to determine whether the response document content "
+"is of type ``text/html``"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:116
+msgid ""
+"If the content is transformable, then it calls ``transform_add`` to create "
+"the transformation."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:119
+msgid "Calls ``TSHttpTxnReenable`` to continue the transaction"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:121
+msgid "**``load``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:123
+msgid ""
+"Opens the file containing the text to be appended and loads the contents of "
+"the file into an ``TSIOBuffer`` called ``append_buffer``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:126
+msgid "**``TSPluginInit``**"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:128
+msgid "Does the following:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:130
+msgid ""
+"Checks to make sure that the required configuration information (the append "
+"text filename) is entered in ``plugin.config`` correctly."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:134
+msgid ""
+"If there is a filename, then ``TSPluginInit`` calls load to load the text."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:137
+msgid ""
+"Creates a continuation for the plugin. The handler for this continuation is "
+"``transform_plugin``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/append-transform-plugin.en.rst:140
+msgid ""
+"Adds the plugin's continuation to ``TS_HTTP_READ_RESPONSE_HDR_HOOK``. In "
+"other words, it sets up a callback of the plugin's continuation when "
+"Traffic Server reads HTTP response headers."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.po
new file mode 100644
index 00000000..f3ff6d82
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.po
@@ -0,0 +1,206 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:2
+msgid "The Sample Buffered Null Transform Plugin"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:21
+msgid ""
+"The buffered null transform, ``bnull-transform.c``, reads the response "
+"content into a buffer and then writes the full buffer out to the client. "
+"Many examples of transformations, such as compression, require you to "
+"gather the full response content in order to perform the transformation."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:26
+msgid ""
+"The buffered null transform uses a state variable to keep track of when it "
+"is (a) reading data into the buffer and (b) writing the data from the "
+"buffer to the downstream vconnection."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:30
+msgid ""
+"The following is a step-by-step walk through the buffered null transform:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:33
+msgid "Gets a handle to HTTP transactions."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:42
+msgid ""
+"With this ``TSPluginInit`` routine, the plugin is called back every time "
+"Traffic Server reads a response header."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:45
+msgid "Checks to see if the transaction response is transformable."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:57
+msgid ""
+"The default behavior for transformations is to cache the transformed "
+"content (if desired, you also can tell Traffic Server to cache "
+"untransformed content). Therefore, only responses received directly from an "
+"origin server need to be transformed. Objects served from the cache are "
+"already transformed. To determine whether the response is from the origin "
+"server, the routine transformable checks the response header for the \"200 "
+"OK\" server response."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:84
+msgid ""
+"If the response is transformable, then the plugin creates a transformation "
+"vconnection that gets called back when the response data is ready to be "
+"transformed (as it is streaming from the origin server)."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:98
+msgid ""
+"The previous code fragment shows that the handler function for the "
+"transformation vconnection is ``bnull_transform``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:101
+msgid ""
+"The ``bnull_transform`` function has to handle ``ERROR``, "
+"``WRITE_COMPLETE``, ``WRITE_READY``, and ``IMMEDIATE`` events. If the "
+"transform is just beginning, the event received is probably ``IMMEDIATE``. "
+"The ``bnull_transform`` function calls ``handle_transform`` to handle "
+"``WRITE_READY`` and ``IMMEDIATE``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:107
+msgid ""
+"The ``handle_transform`` function examines the data parameter for the "
+"continuation passed to it (the continuation passed to ``handle_transform`` "
+"is the transformation vconnection). The data structure keeps track of two "
+"states: copying the data into the buffer (``STATE_BUFFER_DATA``) and "
+"writing the contents of the buffer to the output vconnection "
+"(``STATE_OUTPUT_DATA``)."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:114
+msgid ""
+"Get a handle to the input VIO (see the ``handle_buffering`` function). "
+"``input_vio = TSVConnWriteVIOGet (contp);`` This is so that the "
+"transformation can get information about the upstream vconnection's write "
+"operation to the input buffer."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:119
+msgid ""
+"Copy data from the input buffer to the output buffer. See the "
+"``handle_buffering`` function for the following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:127
+msgid ""
+"Tell the input buffer that the transformation has read the data. See the "
+"``handle_buffering`` function for the following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:134
+msgid ""
+"Modify the input VIO to tell it how much data has been read (increase the "
+"value of ``ndone``). See the ``handle_buffering`` function for the "
+"following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:142
+msgid ""
+"If there is more data left to read ( if ndone < nbytes), then the "
+"``handle_buffering`` function wakes up the upstream vconnection by sending "
+"it ``WRITE_READY``:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:155
+msgid ""
+"The process of passing data through the transformation is illustrated in "
+"the following diagram. The transformation sends ``WRITE_READY`` events when "
+"it needs more data; when data is available, the upstream vconnection "
+"reenables the transformation with an ``IMMEDIATE`` event."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:161
+msgid "The following diagram illustrates the read from an input vconnection:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:164
+msgid ""
+"**Reading Data Into the Buffer (the ``STATE_BUFFER_DATA`` State)** "
+"{#ReadingDataIntoBuffer}"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:170
+msgid "Reading Data Into the Buffer the STATE\\_BUFFER\\_DATA State"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:172
+msgid ""
+"When the data is read into the output buffer, the ``handle_buffering`` "
+"function sets the state of the transformation's data structure to "
+"``STATE_OUTPUT_DATA`` and calls the upstream vconnection back with the "
+"``WRITE_COMPLETE`` event."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:183
+msgid ""
+"The upstream vconnection will probably shut down the write operation when "
+"it receives the ``WRITE_COMPLETE`` event. The handler function of the "
+"transformation, ``bnull_transform``, receives an ``IMMEDIATE`` event and "
+"calls the ``handle_transform`` function. This time, the state is "
+"``STATE_OUTPUT_DATA``, so ``handle_transform`` calls ``handle_output``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:190
+msgid ""
+"The ``handle_output`` function gets a handle to the output vconnection: "
+"``output_conn = TSTransformOutputVConnGet (contp);``"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:193
+msgid ""
+"The ``handle_output`` function writes the buffer to the output vconnection:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:202
+msgid "The following diagram illustrates the write to the output vconnection:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:205
+msgid ""
+"**Writing the Buffered Data to the Output Vconnection** "
+"{#WritingBufferedtDataIntoVConnection}"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst:211
+msgid "Writing the Buffered Data to the Output Vconnection"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/sample-null-transformation-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/sample-null-transformation-plugin.en.po
new file mode 100644
index 00000000..6ec3a8b9
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/http-transformation-plugin/sample-null-transformation-plugin.en.po
@@ -0,0 +1,190 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:2
+msgid "The Sample Null Transform Plugin"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:21
+msgid ""
+"This section provides a step-by-step description of what the null transform "
+"plugin does, along with sections of code that apply. For context, you can "
+"find each code snippet in the complete source code. Some of the error "
+"checking details are left out - to give the description a step-by-step "
+"flow, only the highlights of the transform are included."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:28
+msgid "Below is an overview of the null transform plugin:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:30
+msgid "Gets a handle to HTTP transactions."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:40
+msgid ""
+"With this ``TSPluginInit`` routine, the plugin is called back every time "
+"Traffic Server reads a response header."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:43
+msgid "Checks to see if the transaction response is transformable."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:56
+msgid ""
+"The default behavior for transformations is to cache the transformed "
+"content (you can also tell Traffic Server to cache untransformed content, "
+"if you want). Therefore, only responses received directly from an origin "
+"server need to be transformed. Objects served from cache are already "
+"transformed. To determine whether the response is from the origin server, "
+"the routine ``transformable`` checks the response header for the \"200 OK\" "
+"server response."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:82
+msgid ""
+"If the response is transformable, then the plugin creates a transformation "
+"vconnection that gets called back when the response data is ready to be "
+"transformed (as it is streaming from the origin server)."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:97
+msgid ""
+"The previous code fragment shows that the handler function for the "
+"transformation vconnection is ``null_transform``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:100
+msgid ""
+"Get a handle to the output vconnection (that receives data from the "
+"tranformation)."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:108
+msgid ""
+"Get a handle to the input VIO. (See the ``handle_transform`` function.)"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:116
+msgid ""
+"This is so that the transformation can get information about the upstream "
+"vconnection's write operation to the input buffer."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:119
+msgid ""
+"Initiate a write to the output vconnection of the specified number of "
+"bytes. When the write is initiated, the transformation expects to receive "
+"``WRITE_READY``, ``WRITE_COMPLETE``, or ``ERROR`` events from the output "
+"vconnection. See the ``handle_transform`` function for the following code "
+"fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:131
+msgid ""
+"Copy data from the input buffer to the output buffer. See the "
+"``handle_transform`` function for the following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:140
+msgid ""
+"Tell the input buffer that the transformation has read the data. See the "
+"``handle_transform`` function for the following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:147
+msgid ""
+"Modify the input VIO to tell it how much data has been read (increase the "
+"value of ``ndone``). See the ``handle_transform`` function for the "
+"following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:156
+msgid ""
+"If there is more data left to read ( if ndone < nbytes), then the "
+"``handle_transform`` function wakes up the downstream vconnection with a "
+"reenable and wakes up the upstream vconnection by sending it "
+"``WRITE_READY``:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:173
+msgid ""
+"The process of passing data through the transformation is illustrated in "
+"the following diagram. The downstream vconnections send ``WRITE_READY`` "
+"events when they need more data; when data is available, the upstream "
+"vconnections reenable the downstream vconnections. In this instance, the "
+"``TSVIOReenable`` function sends ``TS_EVENT_IMMEDIATE``."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:180
+msgid ""
+"**Passing Data Through a Transformation** "
+"{#PassingDataThroughaTransformation}"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:186
+msgid "Passing Data Through a Transformation"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:188
+msgid ""
+"If the ``handle_transform`` function finds there is no more data to read, "
+"then it sets ``nbytes`` to ``ndone`` on the output (downstream) VIO and "
+"wakes up the output vconnection with a reenable. It then triggers the end "
+"of the write operation from the upstream vconnection by sending the "
+"upstream vconnection a ``WRITE_COMPLETE`` event."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:203
+msgid ""
+"When the upstream vconnection receives the ``WRITE_COMPLETE`` event, it "
+"will probably shut down the write operation."
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:206
+msgid ""
+"Similarly, when the downstream vconnection has consumed all of the data, it "
+"sends the transformation a ``WRITE_COMPLETE`` event. The transformation "
+"handles this event with a shut down (the transformation shuts down the "
+"write operation to the downstream vconnection). See the ``null_plugin`` "
+"function for the following code fragment:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:220
+msgid "The following diagram illustrates the flow of events:"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:222
+msgid "**Ending the Transformation** {#EndingTransformation}"
+msgstr ""
+
+#: ../../sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst:227
+msgid "Ending the Transformation"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/index.en.po b/doc/locale/ja/LC_MESSAGES/sdk/index.en.po
new file mode 100644
index 00000000..4f05c31c
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/index.en.po
@@ -0,0 +1,70 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/index.en.rst:4
+msgid "Programmers' Guide"
+msgstr ""
+
+#: ../../sdk/index.en.rst:23
+msgid "*In progress*"
+msgstr ""
+
+#: ../../sdk/index.en.rst:25
+msgid "**Abstract**"
+msgstr ""
+
+#: ../../sdk/index.en.rst:27
+msgid ""
+"The *Traffic Server Software Developers Kit* shows you how to create "
+"plugins using the Traffic Server SDK."
+msgstr ""
+
+#: ../../sdk/index.en.rst:31
+msgid "Introduction"
+msgstr ""
+
+#: ../../sdk/index.en.rst:33
+msgid ""
+"This documentation is a work in progress. It was originally written for a "
+"previous, commercially-available version of Traffic Server that supported "
+"different operating systems and more functions than the current version. As "
+"a result, some of the sections may refer to functionality that no longer "
+"exists."
+msgstr ""
+
+#: ../../sdk/index.en.rst:41
+msgid ""
+"If you find any such issues, you may want to submit a `bug or a patch "
+"<https://issues.apache.org/jira/secure/CreateIssue!default.jspa?"
+"pid=12310963>`__. Or find out how to `find bugs <>`__, `create useful bug "
+"reports <>`__ or `patches <>`__."
+msgstr ""
+
+#: ../../sdk/index.en.rst:46
+msgid "Contents:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide.en.po
new file mode 100644
index 00000000..40366dc2
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide.en.po
@@ -0,0 +1,299 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide.en.rst:2
+msgid "IO Guide"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:21
+msgid "This chapter contains the following sections:"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:34
+msgid "Vconnections"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:37
+msgid "Vconnections: a User's Perspective"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:39
+msgid ""
+"To use a vconnection, a user must first get a handle to one. This is "
+"usually accomplished by having it handed to the user; the user may also "
+"simply issue a call that creates a vconnection (such as ``TSNetConnect)``. "
+"In the case of transform plugins, the plugin creates a transformation "
+"vconnection viav ``TSTransformCreate`` and then accesses the output "
+"vconnection using ``TSTransformOutputVConnGet``."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:46
+msgid ""
+"After getting a handle to a vconnection, the user can then issue a read or "
+"write call. It's important to note that not all vconnections support both "
+"reading and writing - as of yet, there has not been a need to query a "
+"vconnection about whether it can perform a read or write operation. That "
+"ability should be obvious from context."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:52
+msgid ""
+"To issue a read or write operation, a user calls ``TSVConnRead`` or "
+"``TSVConnWrite``. These two operations both return ``VIO (TSVIO)``. The VIO "
+"describes the operation being performed and how much progress has been "
+"made. Transform plugins initiate output to the downstream vconnection by "
+"calling ``TSVConnWrite``."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:58
+msgid ""
+"A vconnection read or write operation is different from a normal UNIX "
+"``read(2)`` or ``write(2)`` operation. Specifically, the vconnection "
+"operation can specify more data to be read or written than exists in the "
+"buffer handed to the operation. For example, it's typical to issue a read "
+"for ``INT64_MAX`` (9 quintillion) bytes from a network vconnection in order "
+"to read all the data from the network connection until the end of stream is "
+"reached. This contrasts with the usual UNIX fashion of issuing repeated "
+"calls to ``read(2)`` until one of the calls finally returns ``0`` to "
+"indicate the end of stream was reached (indeed, the underlying "
+"implementation of vconnections on UNIX still does issue those calls to "
+"``read(2)``, but the interface does not expose that detail)."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:70
+msgid ""
+"At most, a given vconnection can have one read operation and one write "
+"operation being performed on it. This is restricted both by design and "
+"common sense: if two write operations were performed on a single "
+"vconnection, then the user would not be able to specify which should occur "
+"first and the output would occur in an intermingled fashion. Note that both "
+"a read operation and a write operation can happen on a single vconnection "
+"at the same time; the restriction is for more than one operation of the "
+"same type."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:79
+msgid ""
+"One obvious issue is that the buffer passed to ``TSVConnRead`` and "
+"``TSVConnWrite`` won't be large enough - there is no reasonable way to make "
+"a buffer that can hold ``INT64_MAX`` (9 quintillion) bytes! The secret is "
+"that vconnections engage in a protocol whereby they signal to the user (via "
+"the continuation passed to ``TSVConnRead`` and ``TSVConnWrite``) that they "
+"have emptied the buffers passed to them and are ready for more data. When "
+"this occurs, it is up to the user to add more data to the buffers (or wait "
+"for more data to be added) and then wake up the vconnection by calling "
+"``TSVIOReenable`` on the VIO describing the operation. ``TSVIOReenable`` "
+"specifies that the buffer for the operation has been modified and that the "
+"vconnection should reexamine it to see if it can make further progress."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:92
+msgid ""
+"The null transform plugin provides an example of how this is done. Below is "
+"a prototype for ``TSVConnWrite``:"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:100
+msgid ""
+"The ``connp`` is the vconnection the user is writing to and ``contp`` is "
+"the \"user\" - i.e., the continuation that ``connp`` calls back when it has "
+"emptied its buffer and is ready for more data."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:104
+msgid "The call made in the null transform plugin is:"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:111
+msgid ""
+"In the example above, ``contp`` is the transformation vconnection that is "
+"writing to the output vconnection. The number of bytes to be written is "
+"obtained from ``input_vio`` by ``TSVIONBytesGet``."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:115
+msgid ""
+"When a vconnection calls back its user to indicate that it wants more data "
+"(or when some other condition has occurred), it issues a call to "
+"``TSContCall``. It passes the ``TSVIO`` describing the operation as the "
+"data parameter, and one of the values below as the event parameter."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:123
+msgid "``TS_EVENT_ERROR``"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:121
+msgid ""
+"Indicates an error has occurred on the vconnection. This will happen for "
+"network IO if the underlying ``read(2)`` or ``write(2)`` call returns an "
+"error."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:130
+msgid "``TS_EVENT_VCONN_READ_READY``"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:126
+msgid ""
+"The vconnection has placed data in the buffer passed to an ``TSVConnRead`` "
+"operation and it would like to do more IO, but the buffer is now full. When "
+"the user consumes the data from the buffer, this should re-enable the VIO "
+"so it indicates to the vconnection that the buffer has been modified."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:137
+msgid "``TS_EVENT_VCONN_WRITE_READY``"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:133
+msgid ""
+"The vconnection has removed data from the buffer passed to an "
+"``TSVConnWrite`` operation and it would like to do more IO, but the buffer "
+"does not have enough data in it. When placing more data in the buffer, the "
+"user should re-enable the VIO so it indicates to the vconnection that the "
+"buffer has been modified."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:142
+msgid "``TS_EVENT_VCONN_READ_COMPLETE``"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:140
+msgid ""
+"The vconnection has read all the bytes specified by an ``TSVConnRead`` "
+"operation. The vconnection can now be used to initiate a new IO operation."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:147
+msgid "``TS_EVENT_VCONN_WRITE_COMPLETE``"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:145
+msgid ""
+"The vconnection has written all the bytes specified by an ``TSVConnWrite`` "
+"operation and can now be used to initiate a new IO operation."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:156
+msgid "``TS_EVENT_VCONN_EOS``"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:150
+msgid ""
+"An attempt was made to read past the end of the stream of bytes during the "
+"handling of an ``TSVConnRead`` operation. This event occurs when the number "
+"of bytes available for reading from a vconnection is less than the number "
+"of bytes the user specifies should be read from the vconnection in a call "
+"to ``TSVConnRead``. A common case where this occurs is when the user "
+"specifies that ``INT64_MAX`` bytes are to be read from a network connection."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:158
+msgid ""
+"For example: the null transform plugin's transformation receives "
+"``TS_EVENT_VCONN_WRITE_READY`` and ``TS_EVENT_VCONN_WRITE_COMPLETE`` events "
+"from the downstream vconnection as a result of the call to ``TSVConnWrite``."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:163
+msgid ""
+"After using a vconnection, the user must call ``TSVConnClose`` or "
+"``TSVConnAbort``. While both calls indicate that the vconnection can "
+"destroy itself, ``TSVConnAbort`` should be used when the connection is "
+"being closed abnormally. After a call to ``TSVConnClose`` or "
+"``TSVConnAbort``, the user will not be called back by the vconnection again."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:170
+msgid ""
+"Sometimes it's desirable to simply close down the write portion of a "
+"connection while keeping the read portion open. This can be accomplished "
+"via the ``TSVConnShutdown`` function, which shuts down either the read or "
+"write portion of a vconnection. *Shutdown* means that the vconnection will "
+"no longer call back the user with events for the portion of the connection "
+"that was shut down. For example: if the user shuts down the write portion "
+"of a connection, then the ``TS_EVENT_VCONN_WRITE_READY`` or "
+"``TS_EVENT_VCONN_WRITE_COMPLETE`` events will not be produced. In the null "
+"transform plugin, the write operation is shut down with a call to "
+"``TSVConnShutdown``. To learn how vconnections are used in transformation "
+"plugins, see `Writing Content Transform Plugins <../http-transformation-"
+"plugin#WritingContentTransformPlugins>`__."
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:183
+msgid "The vconnection functions are listed below:"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:185
+msgid ""
+"```TSVConnAbort`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a08444a9b2fee637672e177ede78b6218>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:186
+msgid ""
+"```TSVConnClose`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a69344c2c6e57ece0990a5cee73b75215>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:187
+msgid ""
+"```TSVConnClosedGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a441d74cd77bf5d5564048682ca83b6ec>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:188
+msgid ""
+"```TSVConnRead`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a29674799a8deffdde3d6ae3231aba1dc>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:189
+msgid ""
+"```TSVConnReadVIOGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#aa6f8788f062737f211c788ad5fcd2813>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:190
+msgid ""
+"```TSVConnShutdown`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a5935b6c762b65fe87057adf94b1b00b4>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:191
+msgid ""
+"```TSVConnWrite`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#acea65496d1fcaf01924b0210f3129e6b>`__"
+msgstr ""
+
+#: ../../sdk/io-guide.en.rst:192
+msgid ""
+"```TSVConnWriteVIOGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ae9a38dbd4866c59131a1f3b806a18aab>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api.en.po
new file mode 100644
index 00000000..420e6a5b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api.en.po
@@ -0,0 +1,78 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:2
+msgid "Guide to the Cache API"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:30
+msgid ""
+"The cache API enables plugins to read, write, and remove objects in the "
+"Traffic Server cache. All cache APIs are keyed by an object called an "
+"``TSCacheKey``; cache keys are created via ``TSCacheKeyCreate``; keys are "
+"destroyed via ``TSCacheKeyDestroy``. Use ``TSCacheKeyDigestSet`` to set the "
+"hash of the cache key."
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:36
+msgid ""
+"Note that the cache APIs differentiate between HTTP data and plugin data. "
+"The cache APIs do not allow you to write HTTP docs in the cache; you can "
+"only write plugin-specific data (a specific type of data that differs from "
+"the HTTP type)."
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:41
+msgid "**Example:**"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:54
+msgid "How to Do a Cache Read"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:56
+msgid ""
+"``TSCacheRead`` does not really read - it is used for lookups (see the "
+"sample Protocol plugin). Possible callback events include:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:59
+msgid ""
+"``TS_EVENT_CACHE_OPEN_READ`` - indicates the lookup was successful. The "
+"data passed back along with this event is a cache vconnection that can be "
+"used to initiate a read on this keyed data."
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api.en.rst:63
+msgid ""
+"``TS_EVENT_CACHE_OPEN_READ_FAILED`` - indicates the lookup was "
+"unsuccessful. Reasons for this event could be that another continuation is "
+"writing to that cache location, or the cache key doesn't refer to a cached "
+"resource. Data payload for this event indicates the possible reason the "
+"read failed (``TSCacheError``)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/errors.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/errors.en.po
new file mode 100644
index 00000000..0cf144ac
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/errors.en.po
@@ -0,0 +1,51 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/guide-to-cache-api/errors.en.rst:2
+msgid "Errors"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/errors.en.rst:21
+msgid ""
+"Errors pertaining to the failure of various cache operations are indicated "
+"by ``TSCacheError`` (enumeration). They are as follows:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/errors.en.rst:24
+msgid "``TS_CACHE_ERROR_NO_DOC`` - the key does not match a cached resource"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/errors.en.rst:26
+msgid ""
+"``TS_CACHE_ERROR_DOC_BUSY`` - e.g, another continuation could be writing to "
+"the cache location"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/errors.en.rst:29
+msgid "``TS_CACHE_ERROR_NOT_READY`` - the cache is not ready"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/example.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/example.en.po
new file mode 100644
index 00000000..1c86dfc5
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/example.en.po
@@ -0,0 +1,85 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:2
+msgid "Example"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:21
+msgid ""
+"In the example below, suppose there is a cache hit and the cache returns a "
+"vconnection that enables you to read the document from cache. To do this, "
+"you need to prepare a buffer (``cache_bufp``) to hold the document; "
+"meanwhile, use ``TSVConnCachedObjectSizeGet`` to find out the actual size "
+"of the document (``content_length``). Then, issue ``TSVConnRead`` to read "
+"the document with the total data length required as ``content_length``. "
+"Assume the following data:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:38
+msgid "In the ``TS_CACHE_OPEN_READ`` handler:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:47
+msgid "In the ``TS_EVENT_VCONN_READ_READY`` handler:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:59
+msgid ""
+"Do not try to get continuations or VIOs from ``TSVConn`` objects for cache "
+"vconnections. Also note that the following APIs can only be used on "
+"transformation vconnections and must not be used on cache vconnections or "
+"net vconnections:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:64
+msgid "``TSVConnWriteVIOGet``"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:66
+msgid "``TSVConnReadVIOGet``"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:68
+msgid "``TSVConnClosedGet``"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:70
+msgid ""
+"APIs such as ``TSVConnRead``, ``TSVConnWrite``, ``TSVConnClose``, "
+"``TSVConnAbort``, and ``TSVConnShutdown`` can be used on any kind of "
+"vconnections."
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:74
+msgid "When you are finished:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/example.en.rst:76
+msgid "``TSCacheKeyDestroy (key);``"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.po
new file mode 100644
index 00000000..70824f64
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.po
@@ -0,0 +1,50 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst:2
+msgid "How to Do a Cache Remove"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst:21
+msgid ""
+"Use ``TSCacheRemove`` to remove items from the cache. Possible callback "
+"events include:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst:24
+msgid ""
+"``TS_EVENT_CACHE_REMOVE`` - the item was removed. There is no data payload "
+"for this event."
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst:27
+msgid ""
+"``TS_EVENT_CACHE_REMOVE_FAILED`` - indicates the cache was unable to remove "
+"the item identified by the cache key. ``TSCacheError`` data indicates why "
+"the remove failed."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.po
new file mode 100644
index 00000000..ca168fa8
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.po
@@ -0,0 +1,53 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst:2
+msgid "How to Do a Cache Write"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst:21
+msgid ""
+"Use ``TSCacheWrite`` to write to a cache (see the `sample Protocol plugin "
+"<../../new-protocol-plugins#AboutSampleProtocol>`__). Possible callback "
+"events include:"
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst:25
+msgid ""
+"``TS_EVENT_CACHE_WRITE_READ`` - indicates the lookup was successful. The "
+"data passed back along with this event is a cache vconnection that can be "
+"used to initiate a cache write."
+msgstr ""
+
+#: ../../sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst:29
+msgid ""
+"``TS_EVENT_CACHE_OPEN_WRITE_FAILED`` - event returned when another "
+"continuation is currently writing to this location in the cache. Data "
+"payload for this event indicates the possible reason for the write failing "
+"(``TSCacheError``)."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/io-buffers.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/io-buffers.en.po
new file mode 100644
index 00000000..60310f45
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/io-buffers.en.po
@@ -0,0 +1,76 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/io-buffers.en.rst:2
+msgid "IO Buffers"
+msgstr ""
+
+#: ../../sdk/io-guide/io-buffers.en.rst:21
+msgid ""
+"The IO buffer data structure is the building block of the vconnection "
+"abstraction. An **IO buffer** (``TSIOBuffer``) is composed of a list of "
+"buffer blocks that point to buffer data. Both the buffer block "
+"(``TSIOBufferBlock``) and buffer data (``TSIOBufferData``) data structures "
+"are reference-counted, so they can reside in multiple buffers at the same "
+"time. This makes it extremely efficient to copy data from one IO buffer to "
+"another via ``TSIOBufferCopy``, since Traffic Server must only copy "
+"pointers and adjust reference counts appropriately (and doesn't actually "
+"copy any data)."
+msgstr ""
+
+#: ../../sdk/io-guide/io-buffers.en.rst:31
+msgid ""
+"The IO buffer abstraction provides for a single writer and multiple "
+"readers. In order for the readers to have no knowledge of each other, they "
+"manipulate IO buffers through the ``TSIOBufferReader`` data structure. "
+"Since only a single writer is allowed, there is no corresponding "
+"``TSIOBufferWriter`` data structure. The writer simply modifies the IO "
+"buffer directly. To see an example that illustrates how to use IOBuffers, "
+"refer to the sample code in the description of "
+"```TSIOBufferBlockReadStart`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#a367203e6e2cf4349e019952782deb96c>`__."
+msgstr ""
+
+#: ../../sdk/io-guide/io-buffers.en.rst:40
+msgid "Additional information about IO buffer functions:"
+msgstr ""
+
+#: ../../sdk/io-guide/io-buffers.en.rst:42
+msgid ""
+"The ``TSIOBufferReader`` data structure tracks how much data in "
+"``TSIOBuffer`` has been read. It has an offset number of bytes that is the "
+"current start point of a particular buffer reader (for every read operation "
+"on an ``TSIOBuffer``, you must allocate an ``TSIOBufferReader``)."
+msgstr ""
+
+#: ../../sdk/io-guide/io-buffers.en.rst:48
+msgid ""
+"Bytes that have already been read may not necessarily be freed within the "
+"``TSIOBuffer``. To consume bytes that have been read, you must call "
+"``TSIOBufferConsume``."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/net-vconnections.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/net-vconnections.en.po
new file mode 100644
index 00000000..fe1aea37
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/net-vconnections.en.po
@@ -0,0 +1,52 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/net-vconnections.en.rst:2
+msgid "Net Vconnections"
+msgstr ""
+
+#: ../../sdk/io-guide/net-vconnections.en.rst:21
+msgid ""
+"A **network** **vconnection** (or*\\* netvconnection*\\ \\*) is a wrapper "
+"around a TCP socket that enables the socket to work within the Traffic "
+"Server vconnection framework. See `vconnections <index.en."
+"html#Vconnections>`__ for more information about the Traffic Server "
+"abstraction for doing asynchronous IO."
+msgstr ""
+
+#: ../../sdk/io-guide/net-vconnections.en.rst:27
+msgid "The netvconnection functions are listed below:"
+msgstr ""
+
+#: ../../sdk/io-guide/net-vconnections.en.rst:29
+msgid "[dox 'TSNetAccept'] in [dox \"TSNetAccept\" :src\\_file]"
+msgstr ""
+
+#: ../../sdk/io-guide/net-vconnections.en.rst:30
+msgid "[dox %TSNetConnect%] in [dox :src\\_file]"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/transformations.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/transformations.en.po
new file mode 100644
index 00000000..54ccab80
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/transformations.en.po
@@ -0,0 +1,222 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/transformations.en.rst:2
+msgid "Transformations"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:22
+msgid "The Vconnection Implementor's View"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:24
+msgid ""
+"A VConnection implementor writes only transformations. All other "
+"VConnections (net VConnections and cache VConnections) are implemented in "
+"iocore. As mentioned earlier, a given vconnection can have a maximum of one "
+"read operation and one write operation being performed on it. The "
+"vconnection user gets information about the operation being performed by "
+"examining the VIO returned by a call to ``TSVConnRead`` or "
+"``TSVConnWrite``. The implementor, in turn, gets a handle on the VIO "
+"operation by examining the VIO returned by ``TSVConnReadVIOGet`` or "
+"``TSVConnWriteVIOGet`` (recall that every vconnection created through the "
+"Traffic Server API has an associated read VIO and write VIO, even if it "
+"only supports reading or writing)."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:36
+msgid ""
+"For example, the null transform plugin's transformation examines the input "
+"VIO by calling:"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:44
+msgid "where ``contp`` is the transformation."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:46
+msgid ""
+"A vconnection is a continuation. This means it has a handler function that "
+"is run when an event is sent to it, or more accurately, when an event that "
+"was sent to it is received. It is the handler function's job to examine the "
+"event, the current state of its read VIO and write VIO, and any other "
+"internal state the vconnection might have and potentially make some "
+"progress on the IO operations."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:53
+msgid ""
+"It is common for the handler function for all vconnections to look similar. "
+"Their basic form looks something like the code fragment below:"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:71
+msgid ""
+"This code fragment basically shows that many vconnections simply want to "
+"destroy themselves when they are closed. However, the situation might also "
+"require the vconnection to do some cleanup processing - which is why "
+"``TSVConnClose`` does not simply just destroy the vconnection."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:76
+msgid ""
+"Vconnections are state machines that are animated by the events they "
+"receive. An event is sent to the vconnection whenever an ``TSVConnRead``, "
+"``TSVConnWrite``, ``TSVConnClose``, ``TSVConnShutdown``, or "
+"``TSVIOReenable`` call is performed. ``TSVIOReenable`` indirectly "
+"references the vconnection through a back-pointer in the VIO structure to "
+"the vconnection. The vconnection itself only knows which call was performed "
+"by examining its state and the state of its VIOs. For example, when "
+"``TSVConnClose`` is called, the vconnection is sent an immediate event "
+"(``TS_EVENT_IMMEDIATE``). For every event the vconnection receives, it "
+"needs to check its closed flag to see if it has been closed. Similarly, "
+"when ``TSVIOReenable`` is called, the vconnection is sent an immediate "
+"event. For every event the vconnection receives, it must check its VIOs to "
+"see if the buffers have been modified to a state in which it can continue "
+"processing one of its operations."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:92
+msgid ""
+"Finally, a vconnection is likely the user of other vconnections. It also "
+"receives events as the user of these other vconnections. When it receives "
+"such an event, like ``TS_EVENT_VCONN_WRITE_READY``, it might just enable "
+"another vconnection that's writing into the buffer used by the vconnection "
+"reading from it. The above description is merely intended to give the "
+"overall idea for what a vconnection needs to do."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:100
+msgid "Transformation VConnection"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:102
+msgid ""
+"A `transformation <HTTPTransformationPlugins.html#Transformations>`__ is a "
+"specific type of vconnection. It supports a subset of the vconnection "
+"functionality that enables one or more transformations to be chained "
+"together. A transformation sits as a bottleneck between an input data "
+"source and an output data sink, which enables it to view and modify all the "
+"data passing through it. Alternatively, some transformations simply scan "
+"the data and pass it on. A common transformation is one that compresses "
+"data in some manner."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:111
+msgid ""
+"A transformation can modify either the data stream being sent *to* an HTTP "
+"client (e.g. the document) or the data stream being sent *from* an HTTP "
+"client (e.g. post data). To do this, the transformation should hook on to "
+"one of the following hooks:"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:116
+msgid "``TS_HTTP_REQUEST_TRANSFORM_HOOK``"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:118
+msgid "``TS_HTTP_RESPONSE_TRANSFORM_HOOK``"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:120
+msgid ""
+"Note that because a transformation is intimately associated with a given "
+"transaction, it is only possible to add the hook to the transaction hooks - "
+"not to the global or session hooks. Transformations reside in a chain, so "
+"their ordering is quite easily determined: transformations that add "
+"themselves to the chain are simply appended to it."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:126
+msgid ""
+"Data is passed in to the transformation by initiating a vconnection write "
+"operation on the transformation. As a consequence of this design, a "
+"transformation must support the vconnection write operation. In other "
+"words, your transformation must expect an upstream vconnection to write "
+"data to it. The transformation has to read the data, consume it, and tell "
+"the upstream vconnection it is finished by sending it an "
+"``TS_EVENT_WRITE_COMPLETE`` event. Transformations cannot send the "
+"``TS_EVENT_VCONN_WRITE_COMPLETE`` event to the upstream vconnection unless "
+"they are finished consuming all incoming data. If "
+"``TS_EVENT_VCONN_WRITE_COMPLETE`` is sent prematurely, then certain "
+"internal Traffic Server data structures will not be deallocated, thereby "
+"causing a memory leak."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:139
+msgid "Here's how to make sure that all incoming data is consumed:"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:141
+msgid ""
+"After reading or copying data, make sure that you consume the data and "
+"increase the value of ndone for the input VIO, as in the following example "
+"taken from ``null-transform.c``:"
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:155
+msgid ""
+"Before sending ``TS_EVENT_VCONN_WRITE_COMPLETE``, your transformation "
+"should check the number of bytes remaining in the upstream vconnection's "
+"write VIO (input VIO) using the function ``TSVIONTodoGet`` (``input_vio``). "
+"This value should go to zero when all of the upstream data is consumed "
+"(``TSVIONTodoGet = nbytes - ndone``). Do not send "
+"``TS_EVENT_VCONN_WRITE_COMPLETE`` events if ``TSVIONTodoGet`` is greater "
+"than zero."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:163
+msgid ""
+"The transformation passes data out of itself by using the output "
+"vconnection retrieved by ``TSTransformOutputVConnGet``. Immediately before "
+"Traffic Server initiates the write operation (which inputs data into the "
+"transformation), it sets the output vconnection either to the next "
+"transformation in the chain of transformations or to a special terminating "
+"transformation (if it's the last transformation in the chain). Since the "
+"transformation is handed ownership of the output vconnection, it must close "
+"it at some point in order for it to be deallocated."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:172
+msgid ""
+"All of the transformations in a transformation chain share the "
+"transaction's mutex. This small restriction (enforced by "
+"``TSTransformCreate``) removes many of the locking complications of "
+"implementing general vconnections. For example, a transformation does not "
+"have to grab its write VIO mutex before accessing its write VIO because it "
+"knows it already holds the mutex."
+msgstr ""
+
+#: ../../sdk/io-guide/transformations.en.rst:179
+msgid ""
+"The transformation functions are: \\* ```TSTransformCreate`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#a54c4902bb537d3d40763bd947ed753b9>`__ \\* "
+"```TSTransformOutputVConnGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#ac6832718a2d9f2658409ad231811e1e3>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/io-guide/vios.en.po b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/vios.en.po
new file mode 100644
index 00000000..e7ec65fa
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/io-guide/vios.en.po
@@ -0,0 +1,120 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/io-guide/vios.en.rst:2
+msgid "VIOs"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:21
+msgid ""
+"A **VIO**, or **virtual IO**, is a description of an IO operation that's "
+"currently in progress. The VIO data structure is used by vconnection users "
+"to determine how much progress has been made on a particular IO operation "
+"and to re-enable an IO operation when it stalls due to buffer space issues. "
+"VIOs are used by vconnection implementors to determine the buffer for an IO "
+"operation, how much work to do on the IO operation, and which continuation "
+"to call back when progress on the IO operation is made."
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:30
+msgid ""
+"The ``TSVIO`` data structure itself is opaque, but it could be defined as "
+"follows:"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:45
+msgid ""
+"The VIO functions below access and modify various parts of the data "
+"structure."
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:48
+msgid ""
+"```TSVIOBufferGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a55df75b6ba6e9152292a01e0b4e21963>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:49
+msgid ""
+"```TSVIOVConnGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a32b9eaaadf2145f98ceb4d64b7c06c2f>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:50
+msgid ""
+"```TSVIOContGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a071f12b307885c02aceebc41601bbdcf>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:51
+msgid ""
+"```TSVIOMutexGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#ab4e8c755cf230918a14a4411af8b3e63>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:52
+msgid ""
+"```TSVIONBytesGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#af6fc57adc7308864b343b6b7fd30c5ff>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:53
+msgid ""
+"```TSVIONBytesSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a27594723f14891ac43da3e1368328d0e>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:54
+msgid ""
+"```TSVIONDoneGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ad71156f68a119c00502ff1fd598824ab>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:55
+msgid ""
+"```TSVIONDoneSet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#af4590966899039571d874e0c090042ad>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:56
+msgid ""
+"```TSVIONTodoGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a1dd145ddd60822a5f892becf7b8e8f84>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:57
+msgid ""
+"```TSVIOReaderGet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a471ee1fde01fbeabce6c39944dfe9da6>`__"
+msgstr ""
+
+#: ../../sdk/io-guide/vios.en.rst:58
+msgid ""
+"```TSVIOReenable`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a792ef9d6962193badad2877a81d8bcff>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide.en.po b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide.en.po
new file mode 100644
index 00000000..15e7a73a
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide.en.po
@@ -0,0 +1,87 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/misc-interface-guide.en.rst:2
+msgid "Miscellaneous Interface Guide"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:21
+msgid ""
+"Most of the functions in the Traffic Server API provide an interface to "
+"specific code modules within Traffic Server. The miscellaneous functions "
+"described in this chapter provide some useful general capabilities. They "
+"are categorized as follows:"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:34
+msgid ""
+"The C library already provides functions such as ``printf``, ``malloc``, "
+"and ``fopen`` to perform these tasks. The Traffic Server API versions, "
+"however, overcome various C library limitations (such as portability to all "
+"Traffic Server-support platforms)."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:40
+msgid "Debugging Functions"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:42
+msgid ""
+"```TSDebug`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#afccd91047cc46eb35478a751ec65c78d>`__ prints out a formatted statement "
+"if you are running Traffic Server in debug mode."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:46
+msgid ""
+"```TSIsDebugTagSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a2d3ceac855c1cde83eff5484bc952288>`__ checks to see if a debug tag is "
+"set. If the debug tag is set, then Traffic Server prints out all debug "
+"statements associated with the tag."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:51
+msgid ""
+"```TSError`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a19ff77fecfc3e331b03da6e358907787>`__ prints error messages to Traffic "
+"Server's error log"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:54
+msgid ""
+"```TSAssert`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ad94eb4fb1f08082ea1634f169cc49c68>`__ enables the use of assertion in "
+"a plugin."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide.en.rst:57
+msgid ""
+"```TSReleaseAssert`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a5e751769785de91c52bd503bcbc28b0a>`__ enables the use of assertion in "
+"a plugin."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/memory-allocation.en.po b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/memory-allocation.en.po
new file mode 100644
index 00000000..42cb6c82
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/memory-allocation.en.po
@@ -0,0 +1,83 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:2
+msgid "Memory Allocation"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:21
+msgid ""
+"Traffic Server provides five routines for allocating and freeing memory. "
+"These routines correspond to similar routines in the C library. For "
+"example, ``TSrealloc`` behaves like the C library routine ``realloc``."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:25
+msgid ""
+"There are two main reasons for using the routines provided by Traffic "
+"Server. The first is portability: the Traffic Server API routines behave "
+"the same on all of Traffic Server's supported platforms. For example, "
+"``realloc`` does not accept an argument of ``NULL`` on some platforms. The "
+"second reason is that the Traffic Server routines actually track the memory "
+"allocations by file and line number. This tracking is very efficient, "
+"always turned on, and quite useful when tracking down memory leaks."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:34
+msgid "The memory allocation functions are:"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:36
+msgid ""
+"```TSfree`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#afe7f18beddf31a80436a03a5ab7e759f>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:38
+msgid ""
+"```TSmalloc`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#af030092823148cbbc5525c4fcde9bb37>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:40
+msgid ""
+"```TSrealloc`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a3abaf3d50d82377dccd1c16bc7b631ab>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:42
+msgid ""
+"```TSstrdup`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a92c01584655c52e46a58986435e17c86>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/memory-allocation.en.rst:44
+msgid ""
+"```TSstrndup`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a11072c11fa6d8470ace2963615229146>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/thread-functions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/thread-functions.en.po
new file mode 100644
index 00000000..d7968bd2
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/thread-functions.en.po
@@ -0,0 +1,69 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:2
+msgid "Thread Functions"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:21
+msgid ""
+"The Traffic Server API thread functions enable you to create, destroy, and "
+"identify threads within Traffic Server. Multithreading enables a single "
+"program to have more than one stream of execution and to process more than "
+"one transaction at a time. Threads serialize their access to shared "
+"resources and data using the ``TSMutex`` type, as described in `Mutexes <../"
+"mutex-guide/#Mutexes>`__."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:28
+msgid "The thread functions are listed below:"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:30
+msgid ""
+"```TSThreadCreate`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#ad087d67be30b68b6d608a5094fceed2a>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:31
+msgid ""
+"```TSThreadDestroy`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a600e8ad830081bdcf6caabc07b54c9e4>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:32
+msgid ""
+"```TSThreadInit`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a11088d9aaba362827841687864e55242>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/thread-functions.en.rst:33
+msgid ""
+"```TSThreadSelf`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a5cc33c5182755e3d62b4aa55277425d9>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/tsfopen-family.en.po b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/tsfopen-family.en.po
new file mode 100644
index 00000000..6800f4bb
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/misc-interface-guide/tsfopen-family.en.po
@@ -0,0 +1,94 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:2
+msgid "The TSfopen Family"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:21
+msgid ""
+"The ``fopen`` family of functions in C is normally used for reading "
+"configuration files, since ``fgets`` is an easy way to parse files on a "
+"line-by-line basis. The ``TSfopen`` family of functions aims at solving the "
+"same problem of buffered IO and line at a time IO in a platform-independent "
+"manner. The ``fopen`` family of C library functions can only open a file if "
+"a file descriptor less than 256 is available. Since Traffic Server often "
+"has more than 2000 file descriptors open at once, however, the likelihood "
+"of an available file descriptor less than 256 very small. To solve this "
+"problem, the ``TSfopen`` family can open files with descriptors greater "
+"than 256."
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:32
+msgid ""
+"The ``TSfopen`` family of routines is not intended for high speed IO or "
+"flexibility - they are blocking APIs (not asynchronous). For performance "
+"reasons, you should not directly use these APIs on a Traffic Server thread "
+"(when being called back on an HTTP hook); it is better to use a separate "
+"thread for doing the blocking IO. The ``TSfopen`` family is intended for "
+"reading and writing configuration information when corresponding usage of "
+"the ``fopen`` family of functions is inappropriate due to file descriptor "
+"and portability limitations. The ``TSfopen`` family of functions consists "
+"of the following:"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:42
+msgid ""
+"```TSfclose`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a2efebe7583752668e6136de0b47bee4f>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:44
+msgid ""
+"```TSfflush`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a3cb0cb348ed189a98577f84e0629ca9a>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:46
+msgid ""
+"```TSfgets`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a6dcc724a432a287836352b31984e0de8>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:48
+msgid ""
+"```TSfopen`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a53b0430d5b0c042bdb3d06689cf244f3>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:50
+msgid ""
+"```TSfread`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a29f83c50b52e4fcabfe2b829de5742e2>`__"
+msgstr ""
+
+#: ../../sdk/misc-interface-guide/tsfopen-family.en.rst:52
+msgid ""
+"```TSfwrite`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a596a5562db5180ea8818f7bb87336a15>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/mutex-guide.en.po b/doc/locale/ja/LC_MESSAGES/sdk/mutex-guide.en.po
new file mode 100644
index 00000000..0f02adbd
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/mutex-guide.en.po
@@ -0,0 +1,321 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/mutex-guide.en.rst:2
+msgid "Mutex Guide"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:21
+msgid ""
+"Mutexes are used to lock shared data. This chapter explains how to use the "
+"mutex interface."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:28
+msgid "Mutexes"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:30
+msgid ""
+"A **mutex** is the basic synchronization method used within Traffic Server "
+"to protect data from simultaneous access by multiple threads. A mutex acts "
+"as a lock that protects data in one program thread from being accessed by "
+"another thread."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:35
+msgid ""
+"The Traffic Server API provides two functions that attempt to access and "
+"lock the data: ``InkMutexLockTry`` and ``TSMutexLock``. **``TSMutexLock``** "
+"is a blocking call - if you use it, you can slow Traffic Server performance "
+"because transaction processing pauses until the mutex is unlocked. It "
+"should be used only on threads created by the plugin "
+"``TSContThreadCreate``. Never use it on a continuation handler called back "
+"by the Cache, Net, or Event Processor. Even if the critical section is very "
+"small, do not use it. If you need to update a flag, then set a variable and/"
+"or use atomic operations. If ``TSMutexLock`` is used in any case other than "
+"the one recommended above, then the result will be a serious performance "
+"impact."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:47
+msgid ""
+"**``TSMutexLockTry``**, on the other hand, attempts to lock the mutex only "
+"if it is unlocked (i.e., not being used by another thread). It should be "
+"used in all cases other than the above mentioned ``TSMutexLock`` case. If "
+"the ``TSMutexLockTry`` attempt fails, then you can schedule a future "
+"attempt (which must be at least 10 milliseconds later)."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:54
+msgid ""
+"In general, you should use ``TSMutexLockTry`` instead of ``TSMutexLock``."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:57
+msgid ""
+"``InkMutexLockTry`` is required if you are tying to lock Traffic Server "
+"internal or system resources (such as the network, cache, event processor, "
+"HTTP state machines, and IO buffers)."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:61
+msgid ""
+"``InkMutexLockTry`` is required if you are making any blocking calls (such "
+"as network, cache, or file IO calls)."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:64
+msgid ""
+"``TSMutexLock`` might *not* be necessary if you are not making blocking "
+"calls and if you are only accessing local resources."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:67
+msgid ""
+"The Traffic Server API uses the ``TSMutex`` type for a mutex. There are two "
+"typical uses of mutex. One use is for locking global data or data shared by "
+"various continuations. The other typical usage is for locking data "
+"associated with a continuation (i.e., data that might be accessed by other "
+"continuations)."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:74
+msgid "Locking Global Data"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:76
+msgid ""
+"The ``blacklist-1.c`` sample plugin implements a mutex that locks global "
+"data. The blacklist plugin reads its blacklisted sites from a configuration "
+"file; file read operations are protected by a mutex created in "
+"``TSPluginInit``. The ``blacklist-1.c`` code uses ``TSMutexLockTry`` "
+"instead of ``InkMutexLock``. For more detailed information, see the "
+"```blacklist-1.c`` <../sample-source-code#Sample_blacklist-1.c>`__ code; "
+"start by looking at the ```TSPluginInit`` <http://people.apache.org/~amc/"
+"ats/doc/html/ts_8h.html#a9a0b0ac9cbce9d6644f66bbe93098313>`__ function."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:87
+msgid "General guidelines for locking shared data are as follows:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:89
+msgid ""
+"Create a mutex for the shared data with ```TSMutexCreate`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#aa4300d8888c6962a44c9e827d633e433>`__."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:92
+msgid ""
+"Whenever you need to read or modify this data, first lock it by calling "
+"```TSMutexLockTry`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ac9c08451aa529851b9474e3c035f44bb>`__; then read or modify the data."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:97
+msgid ""
+"When you are done with the data, unlock it with ```TSMutexUnlock`` <http://"
+"people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#afbb474c217fd5b927f1f8487c45646dd>`__. If you are unlocking data "
+"accessed during the processing of an HTTP transaction, then you must unlock "
+"it before calling ```TSHttpTxnReenable`` <http://people.apache.org/~amc/ats/"
+"doc/html/ts_8h.html#ac367347e02709ac809994dfb21d3288a>`__."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:104
+msgid "Protecting a Continuation's Data"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:106
+msgid ""
+"You must create a mutex to protect a continuation's data if it might be "
+"accessed by other continuations or processes. Here's how:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:128
+msgid ""
+"If any other functions want to access ``contp``'s data, then it is up to "
+"them to get ``contp``'s mutex (using, for example, ``TSContMutexGet``) to "
+"lock it. For usage, ssee the sample Protocol plugin."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:133
+msgid "How to Associate a Continuation With Every HTTP Transaction"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:135
+msgid ""
+"There could be several reasons why you'd want to create a continuation for "
+"each HTTP transaction that calls back your plugin."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:138
+msgid "Some potential scenarios are listed below."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:140
+msgid ""
+"You want to register hooks locally with the new continuation instead of "
+"registering them globally to the continuation plugin."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:143
+msgid ""
+"You want to store data specific to each HTTP transaction that you might "
+"need to reuse across various hooks."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:146
+msgid ""
+"You're using APIs (like ``TSHostLookup``) that will call back the "
+"continuation with a certain event."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:150
+msgid "How to Add the New Continuation"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:152
+msgid ""
+"A typical way of adding the new continuation is by registering the plugin "
+"continuation to be called back by HTTP transactions globally when they "
+"reach ``TS_HTTP_TXN_START_HOOK``. Refer to the example below, which uses a "
+"transaction-specific continuation called ``txn_contp``."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:173
+msgid ""
+"In the plugin continuation handler, create the new continuation "
+"``txn_contp`` and then register it to be called back at "
+"``TS_HTTP_TXN_CLOSE_HOOK``:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:209
+msgid ""
+"Remember that the ``txn_contp`` handler must destory itself when the HTTP "
+"transaction is closed. If you forget to do this, then your plugin will have "
+"a memory leak."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:238
+msgid "How to Store Data Specific to Each HTTP Transaction"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:240
+msgid ""
+"For the example above, store the data in the ``txn_contp`` data structure - "
+"this means that you'll create your own data structure. Now suppose you want "
+"to store the state of the HTTP transaction:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:251
+msgid ""
+"You need to allocate the memory and initialize this structure for each HTTP "
+"``txnp``. You can do that in the plugin continuation handler when it is "
+"called back with ``TS_EVENT_HTTP_TXN_START``"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:295
+msgid "For accessing this data from anywhere, use TSContDataGet:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:309
+msgid "Remember to free this memory before destroying the continuation:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:343
+msgid "Using Locks"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:345
+msgid ""
+"You do not need to use locks when a continuation has registered itself to "
+"be called back by HTTP hooks and it only uses the HTTP APIs. In the example "
+"above, the continuation ``txn_contp`` has registered itself to be called "
+"back at HTTP hooks and it only uses the HTTP APIs. In this case only, it's "
+"safe to access data shared between ``txnp`` and ``txn_contp`` without "
+"grabbing a lock. In the example above, ``txn_contp`` is created with a "
+"``NULL`` mutex. This works because the HTTP transaction ``txnp`` is the "
+"only one that will call back ``txn_contp``, and you are guaranteed that "
+"``txn_contp`` will be called back only one hook at a time. After processing "
+"is finished, ``txn_contp`` will reenable ``txnp``."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:357
+msgid ""
+"In all other cases, you should create a mutex with the continuation. In "
+"general, a lock is needed when you're using iocore APIs or any other API "
+"where ``txn_contp`` is scheduled to be called back by a processor (such as "
+"the cache processor, the DNS processor, etc.). This ensures that "
+"``txn_contp`` is called back sequentially and not simultaneously. In other "
+"words, you need to ensure that ``txn_contp`` will not be called back by "
+"both ``txnp`` and the cache processor at the same time, since this will "
+"result in a situation wherein you're executing two pieces of code in "
+"conflict."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:368
+msgid "Special Case: Continuations Created for HTTP Transactions"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:370
+msgid ""
+"If your plugin creates a new continuation for each HTTP transaction, then "
+"you probably don't need to create a new mutex for it because each HTTP "
+"transaction (``TSHttpTxn`` object) already has its own mutex."
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:374
+msgid ""
+"In the example below, it's not necessary to specify a mutex for the "
+"continuation created in ``txn_handler``:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:406
+msgid "The mutex functions are listed below:"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:408
+msgid ""
+"```TSMutexCreate`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#aa4300d8888c6962a44c9e827d633e433>`__"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:409
+msgid ""
+"```TSMutexLock`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkIOCoreAPI_8cc.html#a306f9923bc9d3c0f417c185919531934>`__"
+msgstr ""
+
+#: ../../sdk/mutex-guide.en.rst:410
+msgid ""
+"```TSMutexLockTry`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#ac9c08451aa529851b9474e3c035f44bb>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/new-protocol-plugins.en.po b/doc/locale/ja/LC_MESSAGES/sdk/new-protocol-plugins.en.po
new file mode 100644
index 00000000..d8cf82c2
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/new-protocol-plugins.en.po
@@ -0,0 +1,540 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/new-protocol-plugins.en.rst:4
+msgid "New Protocol Plugins"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:26
+msgid ""
+"The new protocol APIs enable you to extend Traffic Server to be a web proxy "
+"for any protocol. This chapter describes new protocol APIs and the plugins "
+"that support new protocols. It also provides a detailed review of code for "
+"a sample Protocol plugin that supports a very simple artificial HTTP-like "
+"protocol."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:35
+msgid "About the Sample Protocol"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:37
+msgid ""
+"The sample protocol enables a client to ask a server for a file. Clients "
+"send requests to a specific Traffic Server port (specified in :file:`plugin."
+"config`); each request has the following structure::"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:43
+msgid ""
+"Using the Protocol plugin, Traffic Server can accept these requests, parse "
+"them, and act as a proxy cache (i.e., request the file from the origin "
+"server on the client's behalf and store copies of response messages in "
+"cache). The Protocol plugin is a state machine that flows through the "
+"states illustrated in the `Sample Protocol State Diagram "
+"<#SampleProtocolStDiag>`_. This figure illustrates the steps that Traffic "
+"Server and the Protocol plugin go through in order to support the sample "
+"protocol."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:52
+msgid "In more specific terms, Traffic Server and the Protocol plugin must:"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:54
+msgid ""
+"Listen for and accept client connections (on the accept port specified in :"
+"file:`plugin.config`)"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:57
+msgid "Read incoming client requests"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:59
+msgid "Look up the requested content in the Traffic Server cache"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:61
+msgid ""
+"Serve content from cache if the request is a cache hit (this simple example "
+"does not do freshness checking)"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:64
+msgid ""
+"Open a connection to the origin server if the request is a cache miss (on "
+"the server port specified in :file:`plugin.config`)"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:67
+msgid "Forward the request to the origin server"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:69
+msgid "Receive the origin server response"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:71
+msgid "Cache the response and send it on to the client"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:73
+msgid "**Sample Protocol State Diagram** {#SampleProtocolStDiag}"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:78
+msgid "Sample Protocol State Diagram"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:81
+msgid "Protocol Plugin Structure"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:83
+msgid ""
+"To see how the Protocol plugin works, you need to understand some broader "
+"concepts. This section assumes you're familiar with the concepts of :term:"
+"`continuation`, Traffic Server's **asynchronous event model**, and basic "
+"Traffic Server **plugin structure**. If you are not familiar with these "
+"concepts, then reference `Getting Started <../getting-"
+"started#GettingStarted>`_ and `How to Create Traffic Server Plugins <../how-"
+"to-create-trafficserver-plugins>`_"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:92
+msgid "Continuations in the Protocol Plugin"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:94
+msgid ""
+"The Protocol plugin creates a static continuation that is an **\"accept\" "
+"state machine** - that is, a state machine whose job is to accept client "
+"connections on the appropriate port. When Traffic Server accepts a net "
+"connection from a client on that port, the accept state machine is "
+"activated. It then creates a new continuation: a transaction state machine. "
+"The accept state machine creates one transaction state machine for each "
+"transaction (where a :term:`transaction` consists of a client request and "
+"Traffic Server's response). Each transaction state machine lives until the "
+"transaction completes; then it is destroyed. If the client's request for "
+"content is a cache miss, then a transaction state machine might need to "
+"open a connection to the origin server. This is illustrated in the "
+"`Protocol Plugin Overview <#ProtocolPluginOverview>`__ diagram below."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:108
+msgid "**Protocol Plugin Overview**"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:113
+msgid "Protocol Plugin Overview"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:115
+msgid ""
+"The first steps for writing the Protocol plugin are now clear: in "
+"``TSPluginInit``, you must create a continuation that listens for net "
+"connections on the client port specified in :file:`plugin.config` (this "
+"continuation is the accept state machine)."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:120
+msgid ""
+"Below is a summary of the continuations implemented for the Protocol plugin:"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:123
+msgid ""
+"An **accept state machine** that listens for client connections, and then "
+"creates transaction state machines whenever Traffic Server accepts a new "
+"client connection. The accept state machine lives as long as Traffic Server "
+"is running."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:128
+msgid ""
+"**Transaction state machines** that read client requests, process them, and "
+"are then destroyed when the transaction is finished."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:132
+msgid "Event Flow"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:134
+msgid ""
+"Implementing the rest of the Protocol plugin requires that you understand "
+"the flow of events during the course of a transaction. Unlike HTTP "
+"transaction plugins, this plugin must read data from network connections "
+"and then read/write data to the Traffic Server cache. This means that its "
+"continuations do not receive HTTP state machine events; they receive events "
+"from Traffic Server's processor subsystems. For example: the accept state "
+"machine is activated by an ``TS_EVENT_NET_ACCEPT`` event from Traffic "
+"Server's Net Processor; the handler function for the accept state machine "
+"must therefore be able to handle that event."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:145
+msgid ""
+"The transaction state machines are activated when the client connection "
+"receives incoming request data. The **Net Processor** notifies the "
+"transaction state machine of incoming data. The transaction state machine "
+"reads the data; when finished, it initiates a cache lookup of the requested "
+"file. When the cache lookup completes, the transaction state machine is "
+"activated by the Traffic Server **Cache Processor**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:152
+msgid ""
+"If the transaction state machine needs to open a connection to the origin "
+"server to fetch content (in the case of a cache miss), then the transaction "
+"state machine initiates a DNS lookup of the server name. The transaction "
+"state machine is activated by a DNS lookup event from the Traffic Server "
+"**Host Database Processor**. If the transaction must connect to the origin "
+"server, then the transaction state machine initiates a net connection and "
+"waits for an event from the Net Processor."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:161
+msgid "**Protocol Plugin Flow of Events**"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:166
+msgid "Protocol Plugin Flow of Events"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:168
+msgid ""
+"The flow of events is illustrated in the `Protocol Plugin Flow of Events "
+"<#ProtocolPluginFlow>`_ diagram above. The thin straight lines show Net "
+"Processor event flow, the thin dashed lines represent Host Database event "
+"flow, and the thick dashed lines show Cache event flow."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:173
+msgid ""
+"Notice that this flow of events is independent of the Protocol plugin's "
+"design (i.e., whether you build **accept** or **transaction** state "
+"machines). Any plugin that supports network connections uses the net "
+"vconnection interfaces (``TSNetAccept``, ``TSNetConnect``) and thus "
+"receives events from the Net Processor. Any plugin that performs cache "
+"lookups or cache writes uses ``TSCacheRead``, ``TSCacheWrite``, "
+"``TSVConnRead``, and ``TSVConnWrite`` and thus receives events from the "
+"Cache Processor and Traffic Server event system. Similarly, any plugin that "
+"does DNS lookups receives events from the Host Database Processor."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:186
+msgid "One Way to Implement a Transaction State Machine"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:188
+msgid ""
+"**Transaction state machines** (**TSMs**) in the Protocol plugin must do "
+"the following:"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:191
+msgid "Keep track of the state of the transaction"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:193
+msgid ""
+"Handle events received (based on the state of the transaction and the event "
+"received)"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:196
+msgid "Update the state of the transaction as it changes"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:198
+msgid ""
+"Below is one way you can implement TSMs. Details about how the Protocol "
+"plugin does this are provided in the next section."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:201
+msgid ""
+"Create a data structure for transactions that contains all of the state "
+"data you need to keep track of. In the Protocol plugin this is a struct, "
+"``Txn_SM``."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:205
+msgid ""
+"When you create the TSM's continuation, initialize data of type ``Txn_SM``. "
+"Initialize the data to the initial state of a transaction (in this case, a "
+"net connection has just been accepted). Associate this data to the TSM "
+"continuation using ``TSContDataSet``."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:210
+msgid ""
+"Write state handler functions that handle the expected events for each "
+"state."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:213
+msgid ""
+"Write the handler for the TSM. Its job is to receive events, examine the "
+"current state, and execute the appropriate state handler function. In the "
+"Protocol plugin, the handler is ``main_handler``. ``main_handler`` calls "
+"the state handler functions to handle each state."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:219
+msgid ""
+"The steps below describe the flow of execution illustrated in `\"How "
+"Transaction State Machines are Implemented in the Protocol Plugin\" "
+"<#ImplementTransStMachine>`__."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:223
+msgid ""
+"The handler for the TSM, (called **``main_handler``** in the Protocol "
+"plugin) receives events from the TSM."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:226
+msgid ""
+"**``main_handler``** examines the state of the transaction-in particular, "
+"it examines the current handler."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:229
+msgid ""
+"**``main_handler``** calls the **``current_handler``** (which is one of the "
+"state handler functions), and then passes the current event to "
+"**``current_handler``**. In `the image below <#ImplementTransStMachine>`__ "
+"below, the current handler is called **``state2_handler``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:235
+msgid ""
+"The **``current_handler``** handles the event and updates the data. In `the "
+"image below <#ImplementTransStMachine>`__ below, the state is changed from "
+"**``state2``** to **``state3``** (and the current handler is changed from "
+"**``state2_handler``** to **``state3_handler``**). The next time "
+"**``main_handler``** receives an event, it will be processed by "
+"**``state3_handler``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:242
+msgid ""
+"**``state2_handler``** arranges the next callback of the TSM. Typically, it "
+"gives Traffic Server additional work to do (such as writing a file to "
+"cache) so that it can progress to the next state. The TSM "
+"(**``main_handler``**) then waits for the next event to arrive from Traffic "
+"Server."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:248
+msgid ""
+"**How Transaction State Machines are Implemented in the Protocol Plugin** "
+"{#ImplementTransStMachine}"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:254
+msgid "How Transaction State Machines are Implemented in the Protocol Plugin"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:257
+msgid "Processing a Typical Transaction"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:259
+msgid "The code is contained in the following files:"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:261
+msgid "``Protocol.c`` and ``Protocol.h``"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:263
+msgid "``Accept.c`` and ``Accept.h``"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:265
+msgid "``TxnSM.c`` and ``TxnSM.h``"
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:267
+msgid ""
+"Below is a step-by-step walk-through of the code that processes a typical "
+"transaction."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:270
+msgid ""
+"The ``TSPluginInit`` function is in the ``Protocol.c`` file. It checks the "
+"validity of the ``plugin.config`` entries (there must be two: a client "
+"accept port and a server port) and runs an initialization routine, ``init``."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:275
+msgid ""
+"The **``init``** function (in ``Protocol.c``) creates the plugin's log file "
+"using **``TSTextLogObjectCreate``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:278
+msgid ""
+"The **``init``** function creates the accept state machine using "
+"**``AcceptCreate``**. The code for **``AcceptCreate``** is in the ``Accept."
+"c`` file."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:282
+msgid ""
+"The accept state machine, like the transaction state machine, keeps track "
+"of its state with a data structure. This data structure, **``Accept``**, is "
+"defined in the ``Accept.h`` file. State data in **``AcceptCreate``** is "
+"associated with the new accept state machine via **``TSContDataSet``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:288
+msgid ""
+"The **``init``** function arranges the callback of the accept state machine "
+"when there is a network connection by using **``TSNetAccept``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:292
+msgid ""
+"The handler for the accept state machine is **``accept_event``** in the "
+"``Accept.c`` file. When Traffic Server's Net Processor sends "
+"**``TS_EVENT_NET_ACCEPT``** to the accept state machine, "
+"**``accept_event``** creates a transaction state machine (**``txn_sm``**) "
+"by calling **``TxnSMCreate``**. Notice that **``accept_event``** creates a "
+"mutex for the transaction state machine, since each transaction state "
+"machine has its own mutex."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:300
+msgid ""
+"The **``TxnSMCreate``** function is in the ``TxnSM.c`` file. The first "
+"thing it does is initialize the transaction's data, which is of type "
+"``TxnSM`` (as defined in ``TxnSM.h``). Notice that the current handler "
+"(**``q_current_handler``**) is set to **``state_start``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:306
+msgid ""
+"**``TxnSMCreate``** then creates a transaction state machine using "
+"**``TSContCreate``**. The handler for the transaction state machine is "
+"**``main_handler``**, which is in the ``TxnSM.c`` file."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:310
+msgid ""
+"When **``accept_event``** receives **``TS_EVENT_NET_ACCEPT``**, it calls "
+"the transaction state machine ( **``TSContCall (txn_sm, 0, NULL);``** ). "
+"The event passed to **``main_handler``** is ``0`` (**``TS_EVENT_NONE``**)."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:315
+msgid ""
+"The first thing **``main_handler``** does is examine the current "
+"**``txn_sm``** state by calling **``TSContDataGet``**. The state is "
+"**``state_start``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:319
+msgid ""
+"**``main_handler``** then invokes the handler for **``state_start``** by "
+"using the function pointer **``TxnSMHandler``** (as defined in ``TxnSM.h``)."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:323
+msgid ""
+"The **``state_start``** handler function (in the ``TxnSM.c`` file) is "
+"handed an event (at this stage, the event is **``TS_EVENT_NET_ACCEPT``**) "
+"and a client vconnection. **``state_start``** checks to see if this client "
+"vconnection is closed; if it is not, then **``state_start``** attempts to "
+"read data from the client vconnection into an **``TSIOBuffer``** "
+"(**``state_start``** is handling the event it receives)."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:331
+msgid ""
+"**``state_start``** changes the current handler to "
+"**``state_interface_with_client``** (that is, it updates the state of the "
+"transaction to the next state)."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:335
+msgid ""
+"**``state_start``** initiates a read of the client vconnection (arranges "
+"for Traffic Server to send **``TS_EVENT_VCONN_READ_READY``** events to the "
+"TSM) by calling **``TSVConnRead``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:340
+msgid ""
+"**``state_interface_with_client``** is activated by the next event from "
+"Traffic Server. It checks for errors and examines the read VIO for the read "
+"operation initiated by **``TSVConnRead``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:344
+msgid ""
+"If the read VIO is the **``client_read_VIO``** (which we are expecting at "
+"this stage in the transaction), then **``state_interface_with_client``** "
+"updates the state to **``state_read_request_from_client``** ."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:349
+msgid ""
+"**``state_read_request_from_client``** handles actual "
+"**``TS_EVENT_READ_READY``** events and reads the client request."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:352
+msgid "**``state_read_request_from_client``** parses the client request."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:354
+msgid ""
+"**``state_read_request_from_client``** updates the current state to the "
+"next state, **``state_handle_cache_lookup``** ."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:357
+msgid ""
+"**``state_read_request_from_client``** arranges for Traffic Server to call "
+"back the TSM with the next set of events (initiating the cache lookup) by "
+"calling **``TSCacheRead``**."
+msgstr ""
+
+#: ../../sdk/new-protocol-plugins.en.rst:361
+msgid ""
+"When the **``TSCacheRead``** sends the TSM either "
+"**``TS_EVENT_OPEN_READ``** (a cache hit) or "
+"**``TS_EVENT_OPEN_READ_FAILED``** (a cache miss), **``main_handler``** "
+"calls **``state_handle_cache_lookup``**."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/plugin-configurations.en.po b/doc/locale/ja/LC_MESSAGES/sdk/plugin-configurations.en.po
new file mode 100644
index 00000000..cb7795b6
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/plugin-configurations.en.po
@@ -0,0 +1,106 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/plugin-configurations.en.rst:2
+#: ../../sdk/plugin-configurations.en.rst:27
+msgid "Plugin Configurations"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:21
+msgid "This chapter contains the following section:"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:29
+msgid ""
+"The ``TSConfig`` family of functions provides a mechanism for accessing and "
+"changing global configuration information within a plugin."
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:32
+msgid ""
+"The functions discussed in this section do not examine or modify Traffic "
+"Server configuration variables. To examine Traffic Server configuration and "
+"statistics variables, see `\"Reading Traffic Server Settings and Statistics"
+"\" <../plugin-management/reading-trafficserver-settings-and-statistics>`__"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:37
+msgid ""
+"The ``TSConfig`` family of functions is designed to provide a fast and "
+"efficient mechanism for accessing and changing global configuration "
+"information within a plugin. Such a mechanism is simple enough to provide "
+"in a single-threaded program, but the translation to a multi-threaded "
+"program such as Traffic Server is difficult. A common technique is to have "
+"a single mutex protect the global configuration information; however, the "
+"problem with this solution is that a single mutex becomes a performance "
+"bottleneck very quickly."
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:46
+msgid ""
+"The ``TSConfig`` family of functions define an interface to storing and "
+"retrieving an opaque data pointer. Internally, Traffic Server maintains "
+"reference count information about the data pointer so that a call to "
+"``TSConfigSet`` will not disturb another thread using the current data "
+"pointer. The philosophy is that once a user has a hold of the configuration "
+"pointer, it is okay for it to be used even if the configuration changes; "
+"all that a user typically wants is a non-changing snapshot of the "
+"configuration. You should use ``TSConfigSet`` for all global data updates."
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:56
+msgid "Here's how the interface works:"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:106
+msgid "The configuration functions are:"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:108
+msgid ""
+"```TSConfigDataGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#aed2a6f9d350935ac890f75fdd80605db>`__"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:110
+msgid ""
+"```TSConfigGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a478189d6ad87c6b873d8676cb51508c5>`__"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:112
+msgid ""
+"```TSConfigRelease`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a06711d4a0e70f1ff27f9b5ca34bb649c>`__"
+msgstr ""
+
+#: ../../sdk/plugin-configurations.en.rst:114
+msgid ""
+"```TSConfigSet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a8bba9468fdca478e68035a9776f6e9ca>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/plugin-management.en.po b/doc/locale/ja/LC_MESSAGES/sdk/plugin-management.en.po
new file mode 100644
index 00000000..99eb029f
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/plugin-management.en.po
@@ -0,0 +1,35 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/plugin-management.en.rst:2
+msgid "Plugin Management"
+msgstr ""
+
+#: ../../sdk/plugin-management.en.rst:21
+msgid "This chapter covers the following topics:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/plugin-management/guide-to-the-logging-api.en.po b/doc/locale/ja/LC_MESSAGES/sdk/plugin-management/guide-to-the-logging-api.en.po
new file mode 100644
index 00000000..29601170
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/plugin-management/guide-to-the-logging-api.en.po
@@ -0,0 +1,157 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:2
+msgid "Guide to the Logging API"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:21
+msgid ""
+"The logging API enables your plugin to log entries in a custom text log "
+"file that you create with the call ``TSTextLogObjectCreate``. This log file "
+"is part of Traffic Server's logging system; by default, it is stored in the "
+"logging directory. Once you have created the log object, you can set log "
+"properties."
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:27
+msgid "The logging API enables you to:"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:29
+msgid ""
+"Establish a custom text log for your plugin: see ```TSTextLogObjectCreate`` "
+"<http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#ae75e85e476efeaa16ded185da7a3081b>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:32
+msgid ""
+"Set the log header for your custom text log: see "
+"```TSTextLogObjectHeaderSet`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#a7c10f89fe8bcb6b733f4a83b5a73b71c>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:35
+msgid ""
+"Enable or disable rolling your custom text log: see "
+"```TSTextLogObjectRollingEnabledSet`` <http://people.apache.org/~amc/ats/"
+"doc/html/InkAPI_8cc.html#aec1e883f0735ee40c8b56d90cf27acd1>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:38
+msgid ""
+"Set the rolling interval (in seconds) for your custom text log: see "
+"```TSTextLogObjectRollingIntervalSecSet`` <http://people.apache.org/~amc/"
+"ats/doc/html/InkAPI_8cc.html#aac0be2e81694db0363c5321e8a2019ce>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:41
+msgid ""
+"Set the rolling offset for your custom text log: see "
+"```TSTextLogObjectRollingOffsetHrSet`` <http://people.apache.org/~amc/ats/"
+"doc/html/ts_8h.html#a9d90885b975947c241f74c33550180b4>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:44
+msgid ""
+"Write text entries to the custom text log: see ```TSTextLogObjectWrite`` "
+"<http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a34de01e5603ea639d7ce6c7bf9613254>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:47
+msgid ""
+"Flush the contents of the custom text log's write buffer to disk: see "
+"```TSTextLogObjectFlush`` <http://people.apache.org/~amc/ats/doc/html/"
+"InkAPI_8cc.html#ad746b22f992c2adb5f0271e5136a6ca1>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:50
+msgid ""
+"Destroy custom text logs when you are done with them: see "
+"```TSTextLogObjectDestroy`` <http://people.apache.org/~amc/ats/doc/html/"
+"ts_8h.html#af6521931ada7bbc38194e79e60081d54>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:53
+msgid ""
+"The steps below show how the logging API is used in the ``blacklist-1.c`` "
+"sample plugin. For the complete source code, see the `*Sample Source Code* "
+"<App_SampleSourceCode.html>`__ appendix."
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:57
+msgid "A new log file is defined as a global variable."
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:64
+msgid "In ``TSPluginInit``, a new log object is allocated:"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:71
+msgid ""
+"The new log is named ``blacklist.log``. Each entry written to the log will "
+"have a timestamp. The ``NULL`` argument specifies that the new log does not "
+"have a log header. The error argument stores the result of the log "
+"creation; if the log is created successfully, then an error will be equal "
+"to ``TS_LOG_ERROR_NO_ERROR``."
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:77
+msgid ""
+"After creating the log, the plugin makes sure that the log was created "
+"successfully:"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:87
+msgid ""
+"The ``blacklist-1`` plugin matches the host portion of the URL (in each "
+"client request) with a list of blacklisted sites (stored in the array "
+"``sites[``]):"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:91
+msgid ""
+"::::c for (i = 0; i < nsites; i++) { if (strncmp (host, sites[i], host"
+"\\_length) == 0) { If the host matches one of the blacklisted sites (such "
+"as ``sites[i]``), then the plugin writes a blacklist entry to ``blacklist."
+"log``:"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:96
+msgid ""
+"::::c if (log) { TSTextLogObjectWrite(log, \"blacklisting site: %s\", "
+"sites[i]); The format of the log entry is as follows:"
+msgstr ""
+
+#: ../../sdk/plugin-management/guide-to-the-logging-api.en.rst:99
+msgid ""
+":::text blacklisting site: sites[i] The log is not flushed or destroyed in "
+"the ``blacklist-1`` plugin - it lives for the life of the plugin."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.po b/doc/locale/ja/LC_MESSAGES/sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.po
new file mode 100644
index 00000000..972c43af
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.po
@@ -0,0 +1,94 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:2
+msgid "Reading Traffic Server Settings and Statistics"
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:21
+msgid ""
+"Your plugin might need to know information about Traffic Server's current "
+"configuration and performance. The functions described in this section read "
+"this information from the Traffic Server :file:`records.config` file. "
+"Configuration settings are stored in ``CONFIG`` variables and statistics "
+"are stored in ``PROCESS`` variables."
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:29
+msgid ""
+"Not all ``CONFIG`` and ``PROCESS`` variables in :file:`records.config` are "
+"relevant to Traffic Server's configuration and statistics. Therefore, "
+"retrieve only the :file:`records.config` variables that are documented in "
+"the `Traffic Server Administrator's Guide <../../admin/>`__."
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:34
+msgid ""
+"To retrieve a variable, you need to know its type (``int``, ``counter``, "
+"``float``, or ``string``). Plugins store the :file:`records.config` values "
+"as an ``TSMgmtInt``, ``TSMgmtCounter``, ``TSMgmtFloat``, or "
+"``TSMgmtString``. You can look up :file:`records.config` variable types in "
+"the `Traffic Server Administrator's Guide <../../admin/>`__."
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:40
+msgid ""
+"Depending on the result type, you'll use ``TSMgmtIntGet``, "
+"``TSMgmtCounterGet``, ``TSMgmtFloatGet``, or ``TSMgmtStringGet`` to obtain "
+"the variable value (see the example for ```TSMgmtIntGet`` <http://people."
+"apache.org/~amc/ats/doc/html/ts_8h."
+"html#a097aaecda41d04b522796ae25eea9a3d>`__."
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:45
+msgid "The ``TSMgmt*Get`` functions are:"
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:47
+msgid ""
+"```TSMgmtCounterGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a583e21e614b70256f68658fc6c455ea6>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:49
+msgid ""
+"```TSMgmtFloatGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a2ace94b52c71656304b53824d3fa7080>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:51
+msgid ""
+"```TSMgmtIntGet`` <http://people.apache.org/~amc/ats/doc/html/ts_8h."
+"html#a097aaecda41d04b522796ae25eea9a3d>`__"
+msgstr ""
+
+#: ../../sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst:53
+msgid ""
+"```TSMgmtStringGet`` <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc."
+"html#a14167888ed89d5b30df5bdcdcfdf1c30>`__"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/preface.en.po b/doc/locale/ja/LC_MESSAGES/sdk/preface.en.po
new file mode 100644
index 00000000..2b8f1b04
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/preface.en.po
@@ -0,0 +1,58 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/preface.en.rst:4
+msgid "Preface"
+msgstr ""
+
+#: ../../sdk/preface.en.rst:41
+msgid "Audience"
+msgstr ""
+
+#: ../../sdk/preface.en.rst:43
+msgid ""
+"This manual is intended for programmers who want to write plugin programs "
+"that add services or features to Traffic Server. It assumes a cursory "
+"knowledge of the C programming language, Hyper-Text Transfer Protocol "
+"(HTTP), and Multipurpose Internet Mail Extensions (MIME)."
+msgstr ""
+
+#: ../../sdk/preface.en.rst:29
+msgid ""
+"The *Traffic Server Software Developer's Kit* is a reference for creating "
+"plugins. **Plugins** are programs that add services (such as filtering or "
+"content transformation) or entire features (such as new protocol support) "
+"to Traffic Server. If you are new to writing Traffic Server plugins, then "
+"read the first two chapters, :ref:`sdk-getting-started` and :ref:`how-to-"
+"create-trafficserver-plugins`, and use the remaining chapters as needed. :"
+"ref:`header-based-plugin-examples` provides details about plugins that work "
+"on HTTP headers, while :ref:`http-transformation-plugin` explains how to "
+"write a plugin that transforms or scans the body of an HTTP response. If "
+"you want to support your own protocol on Traffic Server, then reference :"
+"ref:`new-protocol-plugins`."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/preface/how-to-use-this-book.en.po b/doc/locale/ja/LC_MESSAGES/sdk/preface/how-to-use-this-book.en.po
new file mode 100644
index 00000000..a636332b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/preface/how-to-use-this-book.en.po
@@ -0,0 +1,218 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:2
+msgid "How to Use This Book"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:21
+msgid "This book has the following basic components:"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:23
+msgid "Introduction and overview"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:25
+msgid ""
+"Tutorials about writing specific kinds of plugins: HTTP header-based "
+"plugins, content transformation plugins, and protocol plugins"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:28
+msgid "Guides about specific interfaces"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:30
+msgid "Reference material"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:41
+msgid "You can look up information in the following reference sections:"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:43
+msgid "`Index <concept-index>`_: lists information by subject"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:44
+msgid ""
+"`Function Index <http://ci.apache.org/projects/trafficserver/trunk/doxygen/"
+">`_: Doxygen reference"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:47
+msgid ""
+"`Type Index <http://ci.apache.org/projects/trafficserver/trunk/doxygen/"
+"classes.html>`_"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:50
+msgid ""
+"`Deprecated Functions <http://ci.apache.org/projects/trafficserver/trunk/"
+"doxygen/deprecated.html>`_"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:53
+msgid "Below is a section-by-section breakdown of this guide:"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:83
+msgid ""
+"The remaining sections comprise the API function reference and are "
+"organized by function type:"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:126
+msgid ""
+"`Function Index <http://ci.apache.org/projects/trafficserver/trunk/doxygen/"
+">`_ Doxygen generated Traffic Server API Documentation"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:32
+msgid ""
+"If you're new to writing Traffic Server plugins, then read :doc:`../getting-"
+"started.en` and :doc:`../how-to-create-trafficserver-plugins.en`, and use "
+"the remaining chapters as needed. :doc:`../header-based-plugin-examples.en` "
+"provides details about plugins that work on HTTP headers, while :doc:`../"
+"http-transformation-plugin.en` explains how to write a plugin that "
+"transforms or scans the body of an HTTP response. :doc:`../new-protocol-"
+"plugins.en` provides essential information if you want to support your own "
+"protocol on Traffic Server."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:49
+msgid ":doc:`Sample Source Code <../sample-source-code.en>`"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:55
+msgid ""
+":doc:`Getting Started <../getting-started.en>` How to compile and load "
+"plugins. Walks through a simple \"hello world\" example; explains how to "
+"initialize and register plugins."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:59
+msgid ""
+":doc:`How to Create Traffic Server Plugins <../how-to-create-trafficserver-"
+"plugins.en>` Basic structures that all plugins use: events, continuations, "
+"and how to hook on to Traffic Server processes. Detailed explication of a "
+"sample blacklisting plugin."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:65
+msgid ""
+":doc:`Remap Plugin <../remap-plugin.en>` This chapter demonstrates on a "
+"practical example how you can exploit the Traffic Server remap API for your "
+"plugins."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:69
+msgid ""
+":doc:`Header-Based Plugin Examples <../header-based-plugin-examples.en>` "
+"Detailed explanation about writing plugins that work on HTTP headers; "
+"discusses sample blacklisting and basic authorization plugins."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:74
+msgid ""
+":doc:`HTTP Transformation Plugins <../http-transformation-plugin.en>` "
+"Detailed explanation of the null-transform example; also discusses "
+"``VConnections``, ``VIOs``, and IO buffers."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:78
+msgid ""
+":doc:`New Protocol Plugins <../new-protocol-plugins.en>` Detailed "
+"explanation of a sample protocol plugin that supports a synthetic protocol. "
+"Discusses ``VConnections`` and mutexes, as well as the new "
+"``NetConnection``, DNS lookup, logging, and cache APIs."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:86
+msgid ""
+":doc:`Miscellaneous Interface Guide <../misc-interface-guide.en>` Details "
+"error-writing and tracing functions, thread functions, and Traffic Server "
+"API versions of the ``malloc`` and ``fopen`` families. The Traffic Server "
+"API versions overcome various C library limitations."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:92
+msgid ""
+":doc:`HTTP Hooks and Transactions <../http-hooks-and-transactions.en>` "
+"Functions in this chapter hook your plugin to Traffic Server HTTP processes."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:96
+msgid ""
+":doc:`HTTP Headers <../http-headers.en>` Contains instructions for "
+"implementing performance enhancements for all plugins that manipulate HTTP "
+"headers. These functions examine and modify HTTP headers, MIME headers, "
+"URLs, and the marshal buffers that contain header information. If you are "
+"working with headers, then be sure to read this chapter."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:103
+msgid ":doc:`Mutex Guide <../mutex-guide.en>`"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:105
+msgid ""
+":doc:`Continuations <../continuations.en>` Continuations provide the basic "
+"callback mechanism and data abstractions used in Traffic Server."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:109
+msgid ":doc:`Plugin Configurations <../plugin-configurations.en>`"
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:111
+msgid ""
+":doc:`Actions Guide <../actions-guide.en>` Describes how to use "
+"``TSActions`` and the ``TSDNSLookup`` API."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:114
+msgid ""
+":doc:`IO Guide <../io-guide.en>` Describes how to use the Traffic Server IO "
+"interfaces: ``TSVConnection``, ``TSVIO``, ``TSIOBuffer``, "
+"``TSNetVConnection``, the Cache API."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:119
+msgid ""
+":doc:`Plugin Management <../plugin-management.en>` These functions enable "
+"you to set up a configuration interface for plugins, access installed "
+"plugin files, and set up plugin licensing."
+msgstr ""
+
+#: ../../sdk/preface/how-to-use-this-book.en.rst:123
+msgid ""
+":doc:`Adding Statistics <../adding-statistics.en>` These functions add "
+"statistics to your plugin."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/preface/typographical-conventions.en.po b/doc/locale/ja/LC_MESSAGES/sdk/preface/typographical-conventions.en.po
new file mode 100644
index 00000000..3ed95b60
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/preface/typographical-conventions.en.po
@@ -0,0 +1,69 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/preface/typographical-conventions.en.rst:2
+msgid "Typographical Conventions"
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:21
+msgid "This document uses the following typographic conventions:"
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:24
+msgid "\\_italics \\_ or *\\* bold*\\ \\*"
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:24
+msgid "Used to introduce terms."
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:28
+msgid "``monospaced face``"
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:27
+msgid ""
+"Represents C language statements, commands, file content, and computer "
+"output."
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:31
+msgid "*``monospaced italic``*"
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:31
+msgid "Represents variables for which you should substitute a value."
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:35
+msgid "``...`` (ellipsis)"
+msgstr ""
+
+#: ../../sdk/preface/typographical-conventions.en.rst:34
+msgid "Indicates the omission of irrelevant or unimportant information."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/remap-plugin.en.po b/doc/locale/ja/LC_MESSAGES/sdk/remap-plugin.en.po
new file mode 100644
index 00000000..6689e054
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/remap-plugin.en.po
@@ -0,0 +1,111 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/remap-plugin.en.rst:2
+msgid "Remap Plugin"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:27
+msgid ""
+"The Remap plugin provides a more flexible, dynamic way of specifying remap "
+"rules. It is not built on top of the Traffic Server APIs and exists solely "
+"for the purpose of URL remapping. The remap plugin is not global --it is "
+"configured on a per-remap rule basis, which enables you to customize how "
+"URLs are redirected based on individual rules in the ``remap.config`` file."
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:34
+msgid ""
+"The Traffic Server Remap API enables a plugin to dynamically map a client "
+"request to a target URL. Each plugin is associated with one or more remap "
+"rules in ``remap.config`` (an \"instance\"). If a request URL matches a "
+"remap rule's \"fromURL\", then Traffic Server calls the plugin-defined "
+"remap function for that request."
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:40
+msgid ""
+"((Editor's note: additional text TBD; text in this chapter is still under "
+"development))"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:44
+msgid "Getting Started"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:47
+msgid "Remap Header File"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:49
+msgid ""
+"The ``remap.h`` header file contains the Traffic Server remap API. By "
+"default, the header file location is: ``/usr/local/include/ts/remap.h``"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:53
+msgid "Required Functions"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:55
+msgid "A remap plugin is required to implement the following functions:"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:71
+msgid "Configuration"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:73
+msgid ""
+"To associate a remap plugin with a remap rule, use the ``@plugin`` "
+"parameter. See the Admin Guide section (?TBD?) for details on configuring "
+"remap plugins"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:57
+msgid ""
+"`TSRemapInit <http://people.apache.org/~amc/ats/doc/html/remap_8h."
+"html#af7e9b1eee1c38c6f8dcc67a65ba02c24>`_: the remap initialization "
+"function, called once when the plugin is loaded"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:61
+msgid ""
+"`TSRemapNewInstance <http://people.apache.org/~amc/ats/doc/html/remap_8h."
+"html#a963de3eeed2ed7a2da483acf77dc42ca>`_: a new instance is created for "
+"each rule associated with the plugin. Called each time the plugin used in a "
+"remap rule (this function is what processes the pparam values)"
+msgstr ""
+
+#: ../../sdk/remap-plugin.en.rst:66
+msgid ""
+"`TSRemapDoRemap <http://people.apache.org/~amc/ats/doc/html/remap_8h."
+"html#acf73f0355c591e145398211b3c0596fe>`_: the entry point used by Traffic "
+"Server to find the new URL to which it remaps; called every time a request "
+"comes in"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/remap-plugin/example-query-remap.en.po b/doc/locale/ja/LC_MESSAGES/sdk/remap-plugin/example-query-remap.en.po
new file mode 100644
index 00000000..7dbe121b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/remap-plugin/example-query-remap.en.po
@@ -0,0 +1,107 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:2
+msgid "Example: Query Remap Plugin"
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:21
+msgid ""
+"The sample remap plugin, ``query_remap.c``, maps client requests to a "
+"number of servers based on a hash of the request's URL query parameter. "
+"This can be useful for spreading load for a given type of request among "
+"backend servers, while still maintaining \"stickiness\" to a single server "
+"for similar requests. For example, a search engine may want to send "
+"repeated queries for the same keywords to a server that has likely cached "
+"the result from a prior query."
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:30
+msgid "Configuration of query\\_remap"
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:32
+msgid ""
+"The query remap plugin will allow the query parameter name to be specified, "
+"along with the hostnames of the servers to hash across. Sample ``remap."
+"config`` rules using ``query_remap`` will look like:"
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:41
+msgid ""
+"The first ``@pparam`` specifies the query param key for which the value "
+"will be hashed. The remaining parameters list the hostnames of the servers. "
+"A request for ``http://www.example.com/search?q=apache`` will match the "
+"first rule. The plugin will look for the *``q``* parameter and hash the "
+"value '``apache``\\ ' to pick from among ``srch_[1-3]_.example.com`` to "
+"send the request."
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:48
+msgid ""
+"If the request does not include a *``q``* query parameter and the plugin "
+"decides not to modify the request, the default toURL '``http://srch1."
+"example.com/search``\\ ' will be used by TS."
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:52
+msgid ""
+"The parameters are passed to the plugin's ``tsremap_new_instance`` "
+"function. In ``query_remap``, ``tsremap_new_instance`` creates a plugin-"
+"defined ``query_remap_info`` struct to store its configuration parameters. "
+"The ihandle, an opaque pointer that can be used to pass per-instance data, "
+"is set to this struct pointer and will be passed to the ``tsremap_remap`` "
+"function when it is triggered for a request."
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:87
+msgid ""
+"Another way remap plugins may want handle more complex configuration is to "
+"specify a configuration filename as a ``pparam`` and parse the specified "
+"file during instance initialization."
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:92
+msgid "Performing the Remap"
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:94
+msgid ""
+"The plugin implements the ``tsremap_remap`` function, which is called when "
+"TS has read the client HTTP request headers and matched the request to a "
+"remap rule configured for the plugin. The ``TSRemapRequestInfo`` struct "
+"contains input and output members for the remap operation."
+msgstr ""
+
+#: ../../sdk/remap-plugin/example-query-remap.en.rst:99
+msgid ""
+"``tsremap_remap`` uses the configuration information passed via the "
+"``ihandle`` and checks the ``request_query`` for the configured query "
+"parameter. If the parameter is found, the plugin sets a ``new_host`` to "
+"modify the request host:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/sample-source-code.en.po b/doc/locale/ja/LC_MESSAGES/sdk/sample-source-code.en.po
new file mode 100644
index 00000000..475859f0
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/sample-source-code.en.po
@@ -0,0 +1,75 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/sample-source-code.en.rst:2
+msgid "Sample Source Code"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:21
+msgid ""
+"This appendix provides several source code examples. In the online formats "
+"of this book, function calls are linked to their references in the previous "
+"chapters. The following sample plugins are provided:"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:28
+msgid "blacklist-1.c"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:30
+msgid ""
+"The sample blacklisting plugin included in the Traffic Server SDK is "
+"``blacklist-1.c``. This plugin checks every incoming HTTP client request "
+"against a list of blacklisted web sites. If the client requests a "
+"blacklisted site, then the plugin returns an ``Access forbidden`` message "
+"to the client."
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:36
+msgid "This plugin illustrates:"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:38
+msgid "An HTTP transaction extension"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:40
+msgid "How to examine HTTP request headers"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:42
+msgid "How to use the logging interface"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:44
+msgid "How to use the plugin configuration management interface"
+msgstr ""
+
+#: ../../sdk/sample-source-code.en.rst:25
+msgid "`blacklist-1.c`_"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips.en.po b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips.en.po
new file mode 100644
index 00000000..ed9de2e7
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips.en.po
@@ -0,0 +1,62 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/troubleshooting-tips.en.rst:2
+msgid "Troubleshooting Tips"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips.en.rst:21
+msgid "This appendix lists the following troubleshooting tips."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips.en.rst:33
+msgid "Unable to Compile Plugins"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips.en.rst:35
+msgid ""
+"The process for compiling a shared library varies with the platform used, "
+"so the Traffic Server API includes the :program:`tsxs` script you can use "
+"to create shared libraries on all supported Traffic Server platforms."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips.en.rst:40
+msgid "Example"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips.en.rst:42
+msgid ""
+"Assuming the sample program is stored in the file ``hello-world.c``, you "
+"could use the following commands to building a shared library:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips.en.rst:50
+msgid ""
+"To install this plugin in your ``plugindir`` use the equivalent of sudo on "
+"your platform to execute:"
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/debugging-memory-leaks.en.po b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/debugging-memory-leaks.en.po
new file mode 100644
index 00000000..25ff757d
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/debugging-memory-leaks.en.po
@@ -0,0 +1,45 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/troubleshooting-tips/debugging-memory-leaks.en.rst:2
+msgid "Debugging Memory Leaks"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/debugging-memory-leaks.en.rst:21
+msgid ""
+"Memory leaks in a plugin can be detected using e.g. an MRTG graph related "
+"to memory - you can use memory dump information. Enable ``mem dump`` in :"
+"file:`records.config` as follows:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/debugging-memory-leaks.en.rst:30
+msgid ""
+"This causes Traffic Server to dump memory information to ``traffic.out`` at "
+"``<value>`` (intervals are in seconds). A zero value means that it is "
+"disabled."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/unable-to-debug-tags.en.po b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/unable-to-debug-tags.en.po
new file mode 100644
index 00000000..af06d34b
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/unable-to-debug-tags.en.po
@@ -0,0 +1,159 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:2
+msgid "Using Debug Tags"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:21
+msgid ""
+"Use the API ``void TSDebug (const char *tag, const char *format_str, ...)`` "
+"to add traces in your plugin. In this API:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:25
+msgid ""
+"``tag`` is the Traffic Server parameter that enables Traffic Server to "
+"print out *``format_str``*"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:28
+msgid ""
+"``...`` are variables for *``format_str``* in the standard ``printf`` style."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:31
+msgid ""
+"Run Traffic Server with the ``-Ttag`` option. For example, if the tag is "
+"``my-plugin``, then the debug output goes to ``traffic.out.``\\ See below:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:40
+msgid ""
+"Set the following variables in :file:`records.config` (in the Traffic "
+"Server ``config`` directory):"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:49
+msgid "In this case, debug output goes to ``traffic.out``."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:51
+msgid "Example:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:58
+msgid ""
+"The statement ``\"Starting my-plugin at <time>\"`` appears whenever you run "
+"Traffic Server with the ``my-plugin`` tag:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:67
+msgid "Other Useful Internal Debug Tags"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:69
+msgid ""
+"Embedded in the base Traffic Server code are many debug tags for internal "
+"debugging purposes. These can also be used to follow Traffic Server "
+"behavior for testing and analysis."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:73
+msgid ""
+"The debug tag setting (``-T`` and ``proxy.config.diag.debug.tags``) is a "
+"anchored regular expression against which the tag for a specific debug "
+"message is matched. This means the value \"http\" matches debug emssages "
+"with the tag \"http\" but also \"http\\_seq\" and \"http\\_trans\". If you "
+"want multiple tags then use a pipe symbol to separate the tags. For example "
+"\"http\\_tproxy\\|dns\\|hostdb\" will match any of the message tags \"http"
+"\\_tproxy\", \"dns\", \"hostdb\", or \"dns\\_srv\" (but not \"http\\_trans"
+"\" nor \"splitdns\")."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:82
+msgid "Some of the useful HTTP debug tags are:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:84
+msgid "``http_hdrs`` - traces all incoming and outgoing HTTP headers."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:86
+msgid "``http_trans`` - traces actions in an HTTP transaction."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:88
+msgid "``http_seq`` - traces the sequence of the HTTP state machine."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:90
+msgid "``http_tproxy`` - transparency related HTTP events"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:92
+msgid "``dns`` - DNS operations"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:94
+msgid "``hostdb`` - Host name lookup"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:96
+msgid "``iocore_net`` - Socket and low level IO (very voluminous)"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:98
+msgid "``socket`` - socket operations"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:100
+msgid "``ssl`` - SSL related events"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:102
+msgid ""
+"``cache`` - Cache operations (many subtags, examine the output to narrow "
+"the tag set)"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:105
+msgid "``cache_update`` - Cache updates including writes"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:107
+msgid "``cache_read`` - Cache read events."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:109
+msgid "``dir_probe`` - Cache searches."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-debug-tags.en.rst:111
+msgid "``sdk`` - gives some warning concerning API usage."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/unable-to-load-plugins.en.po b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/unable-to-load-plugins.en.po
new file mode 100644
index 00000000..fb160401
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/unable-to-load-plugins.en.po
@@ -0,0 +1,65 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:2
+msgid "Unable to Load Plugins"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:21
+msgid "To load plugins, follow the steps below."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:23
+msgid ""
+"Make sure that your plugin source code contains an ``TSPluginInit`` "
+"initialization function."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:26
+msgid "Compile your plugin source code, creating a shared library."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:28
+msgid "Add an entry to the ``plugin.config`` file for your plugin."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:30
+msgid ""
+"Add the path to your plugin shared library to the :file:`records.config` "
+"file."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:33
+msgid "Restart Traffic Server."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/unable-to-load-plugins.en.rst:35
+msgid ""
+"For detailed information about each step above, refer to :doc:`../getting-"
+"started/a-simple-plugin.en`."
+msgstr ""
diff --git a/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/using-a-debugger.en.po b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/using-a-debugger.en.po
new file mode 100644
index 00000000..c8fad587
--- /dev/null
+++ b/doc/locale/ja/LC_MESSAGES/sdk/troubleshooting-tips/using-a-debugger.en.po
@@ -0,0 +1,55 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Apache Traffic Server 4.1\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-11-08 17:57+0900\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../sdk/troubleshooting-tips/using-a-debugger.en.rst:2
+msgid "Using a Debugger"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/using-a-debugger.en.rst:21
+msgid ""
+"A debugger can set breakpoints in a plugin. Use a Traffic Server debug "
+"build and compile the plugin with the ``-g`` option. A debugger can also be "
+"used to analyze a core dump. To generate core, set the size limit of the "
+"core files in the :file:`records.config` file to -1 as follows:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/using-a-debugger.en.rst:31
+msgid "This is the equivalent of setting ``ulimit -c unlimited``"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/using-a-debugger.en.rst:34
+msgid "Debugging Tips:"
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/using-a-debugger.en.rst:36
+msgid "Use a Traffic Server debug version."
+msgstr ""
+
+#: ../../sdk/troubleshooting-tips/using-a-debugger.en.rst:38
+msgid "Use assertions in your plugin (``TSAssert``/``TSReleaseAssert``)."
+msgstr ""
diff --git a/doc/mainpage.doc b/doc/mainpage.doc
new file mode 100644
index 00000000..9def1731
--- /dev/null
+++ b/doc/mainpage.doc
@@ -0,0 +1,16 @@
+/*
+   This file is for the documentation that appears on the main page of
+   the Doxygen output.  Description of the code structure and layout
+   should go here.
+ */
+
+/** @mainpage
+
+   @section intro Introduction
+   
+   Traffic Server is an efficient caching proxy. Traffic Server provides
+   an extensible plug-in architecture, allowing properties to modify
+   its behavior when necessary.
+
+ */
+
diff --git a/doc/man/man_page_template.txt b/doc/man/man_page_template.txt
new file mode 100644
index 00000000..044911b1
--- /dev/null
+++ b/doc/man/man_page_template.txt
@@ -0,0 +1,67 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "<program name>" 1
+.SH NAME
+<program name> \- <one line description of program>
+.SH SYNOPSIS
+.B <program name>
+<grammar for command line>
+.SH DESCRIPTION
+<detailed description of what the program does>
+.SH OPTIONS
+.TP
+.B \-<a command line switch>
+<description of what that switch does>
+.TP
+.B \-<a command line switch>
+<description of what that switch does>
+.TP
+.B <etc . . .>
+.SH "SEE ALSO"
+<a list of related man pages>
+.SH BUGS
+<known bugs if any>
+.SH Reference
+http://www.cs.hmc.edu/tech_docs/qref/writing_man_pages.html
+
+
+
+Review comments on man pages
+-----------------------------
+1. No extra blank lines specified on any section.
+2. Formatting of the synopsis section should be consistent with
+   a. <command name> -help
+   b. cli_detailed_command_list.txt
+   c. Man page section.
+
+3. Only options sections should be present. All operand section should be moved to options section.
+
+   3.a. Any missing Option section should be listed in the section.
+       (Look in the spec and the example listed in the man page to fill up the option section.)
+
+4. Execute the command and see if it is consistent. File a DDTS bug if the command does not work fine as the detailed_spec.
+
+5. All example section should be aligned correctly.
+   Use the following formats to achieve this option.
+   a. Change All .TP command to .PP (For paragraphs.)
+   b. For example use .PP followed by .fi
+
+6. Prompt to be replaced to traffic_shell>
+
+7. All commands should return either +OK or -ERROR after execution.
+
+
+   
diff --git a/doc/man/show_alarms.1 b/doc/man/show_alarms.1
new file mode 100644
index 00000000..372f5ac9
--- /dev/null
+++ b/doc/man/show_alarms.1
@@ -0,0 +1,33 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:alarms"
+.SH NAME
+show:alarms \- This command displays information about active alarms.
+.SH SYNOPSIS
+show:alarms
+.SH DESCRIPTION
+The show:alarms command displays a list of active alarms.  
+The show:alarms command takes no options.
+.SH EXAMPLE
+When you execute the show:alarms command, you see results in the following format:
+.PP
+.nf
+traffic_shell> show:alarm
+Active Alarms
+  1. MGMT_ALARM_PROXY_PROCESS_DIED
+traffic_shell> 
+.SH "SEE ALSO"
+config:alarms
diff --git a/doc/man/show_cache-stats.1 b/doc/man/show_cache-stats.1
new file mode 100644
index 00000000..79343820
--- /dev/null
+++ b/doc/man/show_cache-stats.1
@@ -0,0 +1,60 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:cache-stats"
+.SH NAME
+show:cache-stats \- This command displays a summary of cache statistics.
+.SH SYNOPSIS
+show:cache-stats
+.SH DESCRIPTION
+The show:cache-stats command displays a summary of cache statistics, including 
+RAM cache, lookups, reads, writes, updates, and removes detail. The show:cache-
+stats command takes no options.
+.SH EXAMPLE
+When you execute the show:cache-stats command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:cache-stats
+Bytes Used --- 0 GB
+Cache Size --- 0 GB
+--RAM Cache--
+Total Bytes -- 0
+Bytes Used --- 0
+Hits --------- 0
+Misses ------- 0
+--Lookups--
+In Progress -- 0
+Hits --------- 0
+Misses ------- 0
+--Reads--
+In Progress -- 0
+Hits --------- 0
+Misses ------- 0
+--Writes--
+In Progress -- 0
+Hits --------- 0
+Misses ------- 0
+--Updates--
+In Progress -- 0
+Hits --------- 0
+Misses ------- 0
+--Removes--
+In Progress -- 0
+Hits --------- 0
+Misses ------- 0
+traffic_shell> 
+.SH "SEE ALSO"
+show:cache, config:cache
diff --git a/doc/man/show_cache.1 b/doc/man/show_cache.1
new file mode 100644
index 00000000..eda329d3
--- /dev/null
+++ b/doc/man/show_cache.1
@@ -0,0 +1,70 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:cache"
+.SH NAME
+show:cache \- This command displays cache configuration information.
+.SH SYNOPSIS
+show:cache [rules | storage]
+.SH DESCRIPTION
+Execute the show:cache command to view basic cache configuration information, or type the servers 
+or access options to display access.
+.SH OPTIONS
+The following options are supported for the show:cache command:
+.SS rules
+The rules option enables you to specify the caching parameters of specific objects or sets of 
+objects.
+.SS storage
+The storage option displays the storage.confg file, which lists all the files, directories, or 
+hard disk partitions that make up the cache.
+.SH EXAMPLES
+.SS "Example 1. Displaying basic cache configuration information"
+.PP
+.nf
+traffic_shell> show:cache
+HTTP Caching --------------------------- on
+Ignore User Requests To Bypass Cache --- off
+Maximum HTTP Object Size ----------- NONE
+Freshness
+  Verify Freshness By Checking --------- When The Object Has Expired
+  Minimum Information to be Cacheable -- Nothing
+  If Object has no Expiration Date:
+    Leave it in Cache for at least ----- 3600 s
+    but no more than ------------------- 86400 s
+Variable Content
+  Cache Responses to URLs that contain
+    "?",";","cgi" or end in ".asp" ----- off
+  Alternates Enabled ------------------- off
+  Vary on HTTP Header Fields:
+    Text ------------------------------- NULL
+    Images ----------------------------- NULL
+    Other ------------------------------ NULL
+  Cache responses to requests containing cookies for:
+    Content Types which are not Text
+traffic_shell>
+.SS "Example 2. Displaying cache.config file rules"
+.PP
+.nf
+traffic_shell> show:cache rules
+(Displays rules from the cache.config file.)
+traffic_shell> 
+.SS "Example 3. Displaying the storage.config file rules"
+.PP
+.nf
+traffic_shell> show:cache storage
+(Displays rules from the storage.config file.)
+traffic_shell> 
+.SH "SEE ALSO"
+config:cache
diff --git a/doc/man/show_cluster.1 b/doc/man/show_cluster.1
new file mode 100644
index 00000000..6907c0ac
--- /dev/null
+++ b/doc/man/show_cluster.1
@@ -0,0 +1,35 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:cluster"
+.SH NAME
+show:cluster \- This command displays the cluster port.
+.SH SYNOPSIS
+show:cluster
+.SH DESCRIPTION
+The show:cluster command displays the ports used for cluster communication. The 
+show:cluster command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:cluster command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:cluster
+
+Cluster Port ----------- 8086
+Cluster RS Port -------- 8088
+Cluster MC Port -------- 8089
+traffic_shell>
diff --git a/doc/man/show_dns-resolver.1 b/doc/man/show_dns-resolver.1
new file mode 100644
index 00000000..63d68e1d
--- /dev/null
+++ b/doc/man/show_dns-resolver.1
@@ -0,0 +1,37 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:dns-resolver"
+.SH NAME
+show:dns-resolver \- This command displays DNS Resolver configuration 
+information.
+.SH SYNOPSIS
+show:dns-resolver
+.SH DESCRIPTION
+The show:dns-resolver command displays the DNS Resolver configuration 
+information, including local domain expansion configuration (see example below). 
+The show:dns-resolver command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:dns-resolver command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:dns-resolver
+Local Domain Expansion -- on
+ .com Domain Expansion --- on
+traffic_shell>
+.SH "SEE ALSO"
+config:dns
diff --git a/doc/man/show_dns-stats.1 b/doc/man/show_dns-stats.1
new file mode 100644
index 00000000..db41b44c
--- /dev/null
+++ b/doc/man/show_dns-stats.1
@@ -0,0 +1,34 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:dns-stats"
+.SH NAME
+show:dns-stats \- This command displays DNS statistics.
+.SH SYNOPSIS
+show:dns-stats
+.SH DESCRIPTION
+The show:dns-stats command displays DNS statistics, including DNS lookup detail. 
+The show:dns-stats command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:dns-stats command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:dns-stats
+DNS Lookups Per Second -- 0.000000
+traffic_shell>
+.SH "SEE ALSO"
+config:dns
diff --git a/doc/man/show_hostdb-stats.1 b/doc/man/show_hostdb-stats.1
new file mode 100644
index 00000000..6efe1375
--- /dev/null
+++ b/doc/man/show_hostdb-stats.1
@@ -0,0 +1,35 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:hostdb-stats"
+.SH NAME
+show:hostdb-stats \- This command displays host database statistics.
+.SH SYNOPSIS
+show:hostdb-stats
+.SH DESCRIPTION
+The show:hostdb-stats command displays host database statistics, including hit 
+rate and DNS lookup detail. The show:hostdb-stats command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:hostdb-stats command, you see results in the following format:
+.PP
+.nf
+traffic_shell> show:hostdb-stats
+Host Database hit Rate -- 99.988437%I    *
+DNS Lookups Per Second -- 0.000000
+* Value reprensents 10 second average.
+traffic_shell>
+.SH "SEE ALSO"
+config:hostdb
diff --git a/doc/man/show_hostdb.1 b/doc/man/show_hostdb.1
new file mode 100644
index 00000000..6cccfaa4
--- /dev/null
+++ b/doc/man/show_hostdb.1
@@ -0,0 +1,40 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:hostdb"
+.SH NAME
+show:hostdb \- This command displays host database configuration information.
+.SH SYNOPSIS
+show:hostdb
+.SH DESCRIPTION
+The show:hostdb command displays the host database configuration information, 
+including various timeout values and number of retries (see example below). The 
+show:hostdb command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:hostdb command, you see results in the following format:
+.PP
+.nf
+traffic_shell> show:hostdb
+Lookup Timeout ----------- 120 s
+Foreground Timeout ------- 1440 s
+Background Timeout ------- 720 s
+Invalid Host Timeout ----- 0 s
+Re-DNS on Reload --------- off
+Resolve Attempt Timeout -- 20 s
+Number of retries -------- 5
+traffic_shell>
+.SH "SEE ALSO"
+config:hostdb
diff --git a/doc/man/show_http-stats.1 b/doc/man/show_http-stats.1
new file mode 100644
index 00000000..9edeef03
--- /dev/null
+++ b/doc/man/show_http-stats.1
@@ -0,0 +1,43 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:http-stats"
+.SH NAME
+show:http-stats \- This command displays HTTP protocol statistics.
+.SH SYNOPSIS
+show:http-stats
+.SH DESCRIPTION
+The show:http-stats command displays HTTP protocol statistics, including 
+document and header size and connections values. The show:http-stats command 
+takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:http-stats command, you see results in the following format:
+.PP
+.nf
+traffic_shell> show:http-stats
+--Client--
+Total Document Bytes ----- 0 MB
+Total Header Bytes ------- 0 MB
+Total Connections -------- 0
+Transactins In Progress -- 0
+--Server--
+Total Document Bytes ----- 0 MB
+Total Header Bytes ------- 0 MB
+Total Connections -------- 0
+Transactins In Progress -- 0
+traffic_shell>
+.SH "SEE ALSO"
+show:cache, show:http-trans-stats, config:http
diff --git a/doc/man/show_http-trans-stats.1 b/doc/man/show_http-trans-stats.1
new file mode 100644
index 00000000..2714fa79
--- /dev/null
+++ b/doc/man/show_http-trans-stats.1
@@ -0,0 +1,55 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:http-trans-stats"
+.SH NAME
+show:http-trans-stats \- This command displays HTTP transaction statistics.
+.SH SYNOPSIS
+show:http-trans-stats
+.SH DESCRIPTION
+The show:http-trans-stats command displays HTTP transaction statistics, 
+including hit, miss, and abort details. The show:http-trans-stats command takes 
+no options.
+.SH EXAMPLE
+.PP
+When you execute the show:http-trans-stats command, you see results in the 
+following format:
+.PP
+.nf
+traffic_shell> show:http-trans-stats
+HTTP Transaction Frequency and Speeds
+Transaction Type              Frequency  Speed(ms)
+--Hits--
+Fresh ----------------------- 0.000000%  0
+Stale Revalidated ----------- 0.000000%  0
+--Misses--
+Now Cached ------------------ 0.000000%  0
+Server No Cache ------------- 0.000000%  0
+Stale Reloaded -------------- 0.000000%  0
+Client No Cache ------------- 0.000000%  0
+--Errors--
+Connection Failures --------- 0.000000%  0
+Other Errors ---------------- 0.000000%  0
+--Aborted Transactions--
+Client Aborts --------------- 0.000000%  0
+Questionable Client Aborts -- 0.000000%  0
+Partial Request Hangups ----- 0.000000%  0
+Pre-Request Hangups --------- 0.000000%  0
+Pre-Connect Hangups --------- 0.000000%  0
+--Other Transactions--
+Unclassified ---------------- 0.000000%  0
+traffic_shell>
+.SH "SEE ALSO"
+show:cache-stats, show:http-stats, config:http
diff --git a/doc/man/show_http.1 b/doc/man/show_http.1
new file mode 100644
index 00000000..459e9b40
--- /dev/null
+++ b/doc/man/show_http.1
@@ -0,0 +1,45 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:http"
+.SH NAME
+show:http \- This command displays HTTP configuration.
+.SH SYNOPSIS
+show:http
+.SH DESCRIPTION
+Execute the show:http command to view HTTP configuration information, such as 
+timeouts values, header insertions, and port specifications. The show:http command 
+takes no options.
+.SH EXAMPLE 
+.PP
+When you execute the show:http command, you see results in the following format:
+.PP
+.nf
+traffic_shell> show:http
+HTTP Caching ------------------ on
+HTTP Server Port -------------- 8080
+HTTP Other Ports -------------- NULL
+Keep-Alive Timeout Inbound ---- 10 s
+Keep-Alive Timeout Outbound --- 10 s
+Inactivity Timeout Inbound ---- 120 s
+Inactivity Timeout Outbound --- 120 s
+Activity Timeout Inbound ------ 7200 s
+Activity Timeout Outbound ----- 7200 s
+Maximum Number of Alternates -- 3
+Remove additional headers ----- NULL
+Insert Client IP Address into Header
+traffic_shell>
+.SH "SEE ALSO"
+show:cache, show:proxy, show:proxy-stats, show:cache-stats, config:reset-stats
diff --git a/doc/man/show_icp-stats.1 b/doc/man/show_icp-stats.1
new file mode 100644
index 00000000..3a2fb65b
--- /dev/null
+++ b/doc/man/show_icp-stats.1
@@ -0,0 +1,46 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:icp-stats"
+.SH NAME
+show:icp-stats \- This command displays ICP statistics.
+.SH SYNOPSIS
+show:icp-stats
+.SH DESCRIPTION
+The show:icp-stats command displays ICP statistics, including query, hit, and 
+miss values. The show:icp-stats command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:icp-stats command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:icp-stats
+--Queries Originating From This Node--
+Query Requests ----------------------------- 0
+Query Messages Sent ------------------------ 0
+Peer Hit Messages Received ----------------- 0
+Peer Miss Messages Received ---------------- 0
+Total Responses Received ------------------- 0
+Average ICP Message Response Time ---------- 0.000000 ms
+Average ICP Request Time ------------------- 0.000000 ms
+--Queries Originating from ICP Peers--
+Query Messages Received -------------------- 0
+Remote Query Hits -------------------------- 0
+Remote Query Misses ------------------------ 0
+Successful Response Message Sent to Peers -- 0
+traffic_shell>
+.SH "SEE ALSO"
+config:icp
diff --git a/doc/man/show_icp.1 b/doc/man/show_icp.1
new file mode 100644
index 00000000..36bfa0ca
--- /dev/null
+++ b/doc/man/show_icp.1
@@ -0,0 +1,73 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:icp"
+.SH NAME
+show:icp \- This command displays ICP configuration.
+.SH SYNOPSIS
+show:icp [peers]
+.SH DESCRIPTION
+The show:icp command displays ICP configuration settings, including connectivity 
+and timeout and expiration values. The show:icp command takes no options.
+.SH OPTIONS
+The following option is supported for the show:icp command:
+.SS peers
+The peers option describes ICP parent and sibling configuration.
+.SH EXAMPLES
+.SS "Example 1. Displaying ICP configuration information"
+.PP
+.nf
+traffic_shell> show:icp
+ICP Mode Enabled ------- off
+ICP Port --------------- 3130
+ICP Multicast Enabled -- off
+ICP Query Timeout ------ 2 s
+traffic_shell>
+.SS "Example 2. Describing ICP parent and sibling configuration"
+.PP
+.nf
+traffic_shell> show:icp peers
+icp.config Rules
+-------------------
+###########################################################
+#
+# ICP Configuration -- Defines ICP parent/sibling configuration
+#
+#  Each line is formatted as follows with ":" separator for each field.
+#    - hostname (string)           -- Identifier for entry
+#    - host_ip_str (string)        -- decimal dot notation
+#    - ctype (int)                 -- 1=Parent, 2=Sibling
+#    - proxy_port (int)            -- TCP Port #
+#    - icp_port (int)              -- UDP Port #
+#    - multicast_member            -- 0=No 1=Yes
+#    - multicast_ip_str (string)   -- decimal dot notation
+#                                     224.0.0.0 - 239.255.255.255
+#    - multicast_ttl (int)         -- (1 - 2; default 1)
+#
+# <host>:<host IP>:<ctype>:<proxy port>:<icp port>:<MC on>:<mc IP>:<MC ttl>:
+#
+# Example #1 (1 parent and 1 sibling):
+# =========================================================
+#     host1:209.1.33.10:1:8080:3130:0:0.0.0.0:1:
+#     host2:209.1.33.11:2:8080:3130:0:0.0.0.0:1:
+#
+#
+# Example #2 (1 parent and 1 sibling using MultiCast):
+# =========================================================
+#     host1:209.1.33.10:1:8080:3130:1:239.128.16.128:1:
+#     host2:209.1.33.11:2:8080:3130:1:239.128.16.128:1:
+traffic_shell>
+.SH "SEE ALSO"
+show:icp-stats, config:icp
diff --git a/doc/man/show_logging-stats.1 b/doc/man/show_logging-stats.1
new file mode 100644
index 00000000..44072f3b
--- /dev/null
+++ b/doc/man/show_logging-stats.1
@@ -0,0 +1,39 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:logging-stats"
+.SH NAME
+show:logging-stats \- This command displays logging statistics.
+.SH SYNOPSIS
+show:logging-stats
+.SH DESCRIPTION
+The show:logging-stats command displays logging statistics, including storage, 
+events logged, and events skipped. The show:logging-stats command takes no 
+options.
+.SH EXAMPLE
+.PP
+When you execute the show:logging-stats command, you see results in the 
+following format:
+.PP
+.nf
+traffic_shell> show:logging-stats
+Current Open Log Files ----------- 0
+Space Used For Log Files --------- 13697
+Number of Access Events Logged --- 0
+Number of Access Events Skipped -- 0
+Number of Error Events Logged ---- 0
+traffic_shell>
+.SH "SEE ALSO"
+config:logging
diff --git a/doc/man/show_logging.1 b/doc/man/show_logging.1
new file mode 100644
index 00000000..67847b01
--- /dev/null
+++ b/doc/man/show_logging.1
@@ -0,0 +1,69 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:logging"
+.SH NAME
+show:logging \- This command displays logging configuration information.
+.SH SYNOPSIS
+show:logging
+.SH DESCRIPTION
+The show:logging command displays logging configuration information, including 
+collation, management, format, and rolling configuration (see example below). 
+The show:logging command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:logging command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:logging
+Logging Mode ----------------------------- errors and transactions
+Management
+  Log Space Limit ------------------------ 2000 MB
+  Log Space Headroom --------------------- 10 MB
+Log Collation ---------------------------- off
+  Host ----------------------------------- NULL
+  Port ----------------------------------- 8085
+  Secret --------------------------------- foobar
+  Host Tagged ---------------------------- off
+  Space Limit for Orphan Files ----------- 25 MB
+Squid Format ----------------------------- on
+  File Type ------------------------------ ASCII
+  File Name ------------------------------ squid
+  File Header ---------------------------- NULL
+Netscape Common -------------------------- off
+  File Type ------------------------------ ASCII
+  File Name ------------------------------ common
+  File Header ---------------------------- NULL
+Netscape Extended ------------------------ off
+  File Type ------------------------------ ASCII
+  File Name ------------------------------ extended
+  File Header ---------------------------- NULL
+Netscape Extended2 ----------------------- off
+  File Type ------------------------------ ASCII
+  File Name   ---------------------------- extended2
+  File Header ---------------------------- NULL
+Splitting
+  ICP Log Splitting ---------------------- off
+  HTTP Host Log Splitting ---------------- off
+Custom Logs ------------------------------ off
+Custom Log Definition Format ------------- Traditional
+Rolling ---------------------------------- on
+  Roll Offset Hour ----------------------- 0
+  Roll Interval -------------------------- 86400 s
+  Auto-delete rolled files (low space) --- on
+traffic_shell>
+.SH "SEE ALSO"
+config:logging
diff --git a/doc/man/show_network.1 b/doc/man/show_network.1
new file mode 100644
index 00000000..9fe53c9a
--- /dev/null
+++ b/doc/man/show_network.1
@@ -0,0 +1,51 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:network"
+.SH NAME
+show:network \- Basic network parameters.
+.SH SYNOPSIS
+show:network
+.SH DESCRIPTION
+The show:network command displays the values for basic network parameters. The 
+show:network command takes no options.
+.SH EXAMPLE
+.PP
+When you execute the show:network command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:network
+Hostname ---------------- hostname.domain.com
+Default Gateway --------- x.x.x.x
+Search Domain ----------- domain.com
+DNS IP Addresses--------- x.x.x.x
+NIC eth0
+  Status ---------------- up
+  Start on Boot --------- onboot
+  Start Protocol -------- none
+  IP Address ------------ x.x.x.x
+  Netmask --------------- x.x.x.x
+  Gateway --------------- default
+NIC eth1
+  Status ---------------- up
+  Start on Boot --------- onboot
+  Start Protocol -------- none
+  IP Address ------------ x.x.x.x
+  Netmask --------------- x.x.x.x
+  Gateway --------------- default
+traffic_shell>
+.SH "SEE ALSO"
+config:network
diff --git a/doc/man/show_parent.1 b/doc/man/show_parent.1
new file mode 100644
index 00000000..811ffa1b
--- /dev/null
+++ b/doc/man/show_parent.1
@@ -0,0 +1,50 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:parent"
+.SH NAME
+show:parent \- This command displays parent configuration information.
+.SH SYNOPSIS
+show:parent [rules]
+.SH DESCRIPTION
+The show:parent command displays parent configuration details, specifying 
+whether parent caching is enabled and identifying the parent cache, if 
+appropriate. The show:parent command takes an option called rules and returns 
+additional details.
+.SH OPTIONS
+.SS rules
+The rules option enables you to specify the parent proxy and parent directives 
+for specific objects or sets of objects.
+.SH EXAMPLES
+When you execute the show:parent command, you see results in the following 
+format:
+.SS "Example 1. Displaying basic parent configuration information"
+.PP
+.nf
+traffic_shell> show:parent
+Parent Caching -- off
+Parent Cache ---- NULL
+traffic_shell>
+.SS "Example 2. Displaying parent configuration rules,"
+.SS "           including parent directives"
+.PP
+.nf
+traffic_shell> show:parent rules
+parent.config rules
+------------------- 
+(Displays the rules in the parent.config file.)
+traffic_shell>
+.SH "SEE ALSO"
+config:parent
diff --git a/doc/man/show_port-tunnels.1 b/doc/man/show_port-tunnels.1
new file mode 100644
index 00000000..8a42fa88
--- /dev/null
+++ b/doc/man/show_port-tunnels.1
@@ -0,0 +1,37 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:port-tunnels"
+.SH NAME
+show:port-tunnels \- This command displays the ports through which the proxy may 
+tunnel.
+.SH SYNOPSIS
+show:port-tunnels
+.SH DESCRIPTION
+Execute the show:port-tunnels command to see the tunneling ports. The show:port-
+tunnels command takes no options.
+.SH EXAMPLE 
+When you execute the show:port-tunnels command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:port-tunnels
+server-other-ports -- NULL
+To view the corresponding rule of the remap.config file in the following format
+map tunnel://<proxy_ip>:<port_num>/tunnel://<dest_server>:<dest_port>
+use show:remap
+traffic_shell>
+.SH "SEE ALSO"
+config:port-tunnels, show:remap
diff --git a/doc/man/show_proxy-stats.1 b/doc/man/show_proxy-stats.1
new file mode 100644
index 00000000..392c4f30
--- /dev/null
+++ b/doc/man/show_proxy-stats.1
@@ -0,0 +1,42 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:proxy-stats"
+.SH NAME
+show:proxy-stats \- This command displays a summary of proxy statistics.
+.SH SYNOPSIS
+show:proxy-stats
+.SH DESCRIPTION
+The show:proxy-stats command displays a summary of global proxy statistics, 
+including hit rate, bandwidth saving, open connections, and throughput. The 
+show:proxy-stats command takes no options.
+.SH EXAMPLE
+When you execute the show:proxy-stats command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:proxy-stats
+Document Hit Rate -------- 0.000000%     *
+Bandwidth Saving --------- 0.000000%     *
+Cache Percent Free ------- 0.000000% 
+Open Server Connections -- 0
+Open Client Connections -- 0
+Open Cache Connections --- 0
+Client Throughput -------- 0.000000 MBit/Sec
+Transaction Per Second --- 0.100000
+* Value represents 10 second average.
+traffic_shell>
+.SH "SEE ALSO"
+show:cache, config:cache
diff --git a/doc/man/show_proxy.1 b/doc/man/show_proxy.1
new file mode 100644
index 00000000..014dcc14
--- /dev/null
+++ b/doc/man/show_proxy.1
@@ -0,0 +1,32 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:proxy"
+.SH NAME
+show:proxy \- This command displays the proxy name.
+.SH SYNOPSIS
+show:proxy
+.SH DESCRIPTION
+Execute the show:proxy command to see the name of the proxy. The show:proxy 
+command takes no options.
+.SH EXAMPLE 
+When you execute the show:proxy command, you see results in the following format:
+.PP
+.nf
+traffic_shell> show:proxy
+Name -- rubicon
+traffic_shell>
+.SH "SEE ALSO"
+show:proxy-stats
diff --git a/doc/man/show_remap.1 b/doc/man/show_remap.1
new file mode 100644
index 00000000..9f4b380e
--- /dev/null
+++ b/doc/man/show_remap.1
@@ -0,0 +1,36 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:remap"
+.SH NAME
+show:remap \- This command displays logging configuration information.
+.SH SYNOPSIS
+show:remap
+.SH DESCRIPTION
+The show:remap command displays logging configuration information, including 
+collation, management, format, and rolling configuration (see example below). 
+The show:remap command takes no options.
+.SH EXAMPLE
+When you execute the show:remap command, you see results in the following format 
+(comments included with the format example):
+.PP
+.nf
+traffic_shell> show:remap
+remap.config rules
+-------------------
+(Displays rules from remap.config.)
+traffic_shell>
+.SH "SEE ALSO"
+config:remap
diff --git a/doc/man/show_scheduled-update.1 b/doc/man/show_scheduled-update.1
new file mode 100644
index 00000000..6a14452d
--- /dev/null
+++ b/doc/man/show_scheduled-update.1
@@ -0,0 +1,53 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:scheduled-update"
+.SH NAME
+show:scheduled-update \- This command displays basic object-update information.
+.SH SYNOPSIS
+show:scheduled-update [rules]
+.SH DESCRIPTION
+With scheduled update, the proxy loads specific objects into the cache at scheduled times. 
+Execute the show:scheduled-update command to view basic object-update information, which 
+includes whether scheduled update is enabled, as well as error retry and concurrent update 
+values.
+.SH OPTIONS
+The following option is supported for the show:scheduled-update command:
+.SS rules
+The rules option displays update.config file configuration detail. The file contains a list of 
+URLs specifying objects that you want to schedule for update. Be aware that the system validates 
+these URLs for syntactic correctness, but not for existence.
+.SH EXAMPLES
+.SS "Example 1. Displaying basic object-update configuration"
+.SS "           information"
+.PP
+.nf
+traffic_shell> show:scheduled-update
+Scheduled Update ------------- off
+Update Error Retry Count ----- 10
+Update Error Retry Interval -- 2 s
+Maximum Concurrent Updates --- 100
+Force Immediate Update ------- off
+traffic_shell>
+.SS "Example 2. Displaying update.config file rules"
+.PP
+.nf
+traffic_shell> show:scheduled-update rules
+update.config rules
+-------------------
+(Displays rules from the update.config file.)
+traffic_shell>
+.SH "SEE ALSO"
+config:scheduled-update
diff --git a/doc/man/show_security.1 b/doc/man/show_security.1
new file mode 100644
index 00000000..20596f97
--- /dev/null
+++ b/doc/man/show_security.1
@@ -0,0 +1,37 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:security"
+.SH NAME
+show:security \- This command displays key security port assignments and the 
+clients and hosts that have access to Traffic Server and Traffic Server Manager.
+.SH SYNOPSIS
+show:security
+.SH DESCRIPTION
+The show:security command displays the web interface This command takes 
+no options.
+.SH EXAMPLE 
+When you execute the show:security command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:security
+Web Interface Port ----- 8081
+Overseer Port ---------- 8082
+Traffic Server Access
+    (ip_allow.config contents)
+traffic_shell>
+.SH "SEE ALSO"
+config:security
diff --git a/doc/man/show_socks.1 b/doc/man/show_socks.1
new file mode 100644
index 00000000..ab0c0c02
--- /dev/null
+++ b/doc/man/show_socks.1
@@ -0,0 +1,47 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:socks"
+.SH NAME
+show:socks \- This command displays SOCKS configuration information.
+.SH SYNOPSIS
+show:socks [rules]
+.SH DESCRIPTION
+Execute the show:socks command to view basic SOCKS configuration information, which include whether SOCKS is enabled, as well as default servers, version, and port values.
+.SH OPTION
+The following option is supported for the show:socks command:
+.SS "[ rules ]"
+The rules option displays SOCKS configuration detail from the socks.config file.
+.SH EXAMPLES
+.SS "Example 1. Displaying basic SOCKS configuration information"
+.PP
+.nf
+traffic_shell> show:socks
+SOCKS -------------------- off
+SOCKS Version ------------ 4
+SOCKS Default Servers ---- s1.example.com:1080;socks2:4080
+SOCKS Accept Enabled ----- off
+SOCKS Accept Port -------- 1080
+traffic_shell>
+.SS "Example 2. Displaying socks.config file rules"
+.PP
+.nf
+traffic_shell> show:socks rules
+socks.config rules
+-------------------
+(Displays rules from the socks.config file.)
+traffic_shell>
+.SH "SEE ALSO"
+config:socks
diff --git a/doc/man/show_ssl.1 b/doc/man/show_ssl.1
new file mode 100644
index 00000000..25f809b4
--- /dev/null
+++ b/doc/man/show_ssl.1
@@ -0,0 +1,33 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:ssl"
+.SH NAME
+show:ssl \- This command displays SSL port configuration.
+.SH SYNOPSIS
+show:ssl
+.SH DESCRIPTION
+The show:ssl command displays SSL port configuration information. The show:ssl 
+command takes no options.
+.SH EXAMPLE
+.SS "When you execute the show:ssl command, you see results in the"
+.SS "following format"
+.PP
+.nf
+traffic_shell> show:ssl
+Restrict SSL Connections to Ports -- 443 563
+traffic_shell>
+.SH "SEE ALSO"
+config:ssl
diff --git a/doc/man/show_status.1 b/doc/man/show_status.1
new file mode 100644
index 00000000..910761cf
--- /dev/null
+++ b/doc/man/show_status.1
@@ -0,0 +1,33 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:status"
+.SH NAME
+show:status \- This command shows you whether the proxy is running.
+.SH SYNOPSIS
+show:status
+.SH DESCRIPTION
+If you want confirmation that the proxy is running, use the show:status command. 
+The show:status command has no arguments.
+.SH EXAMPLE 
+.SS "When you execute the show:status command, you see the "
+.SS "following if the proxy is on."
+.PP
+.nf
+traffic_shell> show:status
+Proxy -- on
+traffic_shell>
+.SH "SEE ALSO"
+show:proxy, show:proxy-stats, show:cache-stats, config:reset-stats
diff --git a/doc/man/show_version.1 b/doc/man/show_version.1
new file mode 100644
index 00000000..5ea92dce
--- /dev/null
+++ b/doc/man/show_version.1
@@ -0,0 +1,33 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:version"
+.SH NAME
+show:version \- This command displays Traffic Server and Traffic Manager
+version information.
+.SH SYNOPSIS
+show:version
+.SH DESCRIPTION
+The show:version command displays Traffic Server and Traffic Manager
+version numbers.  The show:version command takes no options.
+.SH EXAMPLE 
+When you execute the show:version command, you see results in the following 
+format:
+.PP
+.nf
+traffic_shell> show:version
+traffic_server version --- 5.2.0
+traffic_manager version -- 5.2.0
+traffic_shell>
diff --git a/doc/man/show_virtual-ip.1 b/doc/man/show_virtual-ip.1
new file mode 100644
index 00000000..ca37c5a1
--- /dev/null
+++ b/doc/man/show_virtual-ip.1
@@ -0,0 +1,35 @@
+.\"  Licensed to the Apache Software Foundation (ASF) under one .\"
+.\"  or more contributor license agreements.  See the NOTICE file .\"
+.\"  distributed with this work for additional information .\"
+.\"  regarding copyright ownership.  The ASF licenses this file .\"
+.\"  to you under the Apache License, Version 2.0 (the .\"
+.\"  "License"); you may not use this file except in compliance .\"
+.\"  with the License.  You may obtain a copy of the License at .\"
+.\" .\"
+.\"      http://www.apache.org/licenses/LICENSE-2.0 .\"
+.\" .\"
+.\"  Unless required by applicable law or agreed to in writing, software .\"
+.\"  distributed under the License is distributed on an "AS IS" BASIS, .\"
+.\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\"
+.\"  See the License for the specific language governing permissions and .\"
+.\"  limitations under the License. .\"
+.TH "show:virtual-ip"
+.SH NAME
+show:virtual-ip \- This command displays virtual IP configuration information
+.SH SYNOPSIS
+show:virtual-ip
+.SH DESCRIPTION
+The show:virtual-ip command displays the virtual IP addresses configured for 
+your system. The show:virtual-ip command takes no options.
+.SH EXAMPLE
+.SS "When you execute the show:virtual-ip command, you see results"
+.SS "in the following format."
+.PP
+.nf
+traffic_shell> show:virtual-ip 
+  2 Elements in Record
+  0 1.1.1.1 23 23
+  1 1.1.1.1 23 24
+traffic_shell>
+.SH "SEE ALSO"
+config:virtual-ip
diff --git a/doc/manpages.py b/doc/manpages.py
new file mode 100644
index 00000000..6f16c5e7
--- /dev/null
+++ b/doc/manpages.py
@@ -0,0 +1,67 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import sys, os
+
+man_pages = [
+  # Add all files in the reference/api directory to the list of manual
+  # pages
+  ('reference/api/' + filename[:-4], filename.split('.', 1)[0], '', None, '3ts') for filename in os.listdir('reference/api') if filename != 'index.en.rst' and filename.endswith('.rst')] + [
+
+  ('reference/commands/traffic_cop.en', 'traffic_cop', u'Traffic Server watchdog', None, '8'),
+  ('reference/commands/traffic_line.en', 'traffic_line', u'Traffic Server command line', None, '8'),
+  ('reference/commands/traffic_logcat.en', 'traffic_logcat', u'Traffic Server log spooler', None, '8'),
+  ('reference/commands/traffic_logstats.en', 'traffic_logstats', u'Traffic Server analyzer', None, '8'),
+  ('reference/commands/traffic_manager.en', 'traffic_manager', u'Traffic Server process manager', None, '8'),
+  ('reference/commands/traffic_server.en', 'traffic_server', u'Traffic Server', None, '8'),
+  ('reference/commands/traffic_shell.en', 'traffic_shell', u'Traffic Server shell', None, '8'),
+
+  ('reference/commands/tspush.en', 'tspush', u'Push objects into the Traffic Server cache', None, '1'),
+  ('reference/commands/traffic_top.en','traffic_top', u'Display Traffic Server statistics', None, '1'),
+  ('reference/commands/tsxs.en', 'tsxs', u'Traffic Server plugin tool', None, '1'),
+
+  ('reference/configuration/cache.config.en', 'cache.config', u'Traffic Server cache configuration file', None, '5'),
+  ('reference/configuration/congestion.config.en', 'congestion.config', u'Traffic Server congestion control configuration file', None, '5'),
+  ('reference/configuration/hosting.config.en', 'hosting.config', u'Traffic Server domain hosting configuration file', None, '5'),
+  ('reference/configuration/icp.config.en', 'icp.config', u'Traffic Server ICP configuration file', None, '5'),
+  ('reference/configuration/ip_allow.config.en', 'ip_allow.config', u'Traffic Server IP access control configuration file', None, '5'),
+  ('reference/configuration/log_hosts.config.en', 'log_hosts.config', u'Traffic Server log host configuration file', None, '5'),
+  ('reference/configuration/logs_xml.config.en', 'logs_xml.config', u'Traffic Server log format configuration file', None, '5'),
+  ('reference/configuration/parent.config.en', 'parent.config', u'Traffic Server parent cache configuration file', None, '5'),
+  ('reference/configuration/plugin.config.en', 'plugin.config', u'Traffic Server global plugin configuration file', None, '5'),
+  ('reference/configuration/records.config.en', 'records.config', u'Traffic Server configuration file', None, '5'),
+  ('reference/configuration/remap.config.en', 'remap.config', u'Traffic Server remap rules configuration file', None, '5'),
+  ('reference/configuration/splitdns.config.en', 'splitdns.config', u'Traffic Server split DNS configuration file', None, '5'),
+  ('reference/configuration/ssl_multicert.config.en', 'ssl_multicert.config', u'Traffic Server SSL certificate configuration file', None, '5'),
+  ('reference/configuration/storage.config.en', 'storage.config', u'Traffic Server cache storage configuration file', None, '5'),
+  ('reference/configuration/update.config.en', 'update.config', u'Traffic Server automated update configuration file', None, '5'),
+  ('reference/configuration/volume.config.en', 'volume.config', u'Traffic Server cache volume configuration file', None, '5'),
+
+]
+
+if __name__ == '__main__':
+  # Use optparse instead of argparse because this needs to work on old Python versions.
+  import optparse
+
+  parser = optparse.OptionParser(description='Traffic Server Sphinx docs configuration')
+  parser.add_option('--section', type=int, default=0, dest='section')
+
+  (options, args) = parser.parse_args()
+
+  # Print the names of the man pages for the requested manual section.
+  for page in man_pages:
+    if options.section == 0 or options.section == int(page[4][0]):
+      print page[1] + '.' + page[4]
diff --git a/doc/pip_requirements.txt b/doc/pip_requirements.txt
new file mode 100644
index 00000000..3deddc6a
--- /dev/null
+++ b/doc/pip_requirements.txt
@@ -0,0 +1,2 @@
+polib>=1.0.3
+
diff --git a/doc/reference/api/TSAPI.en.rst b/doc/reference/api/TSAPI.en.rst
new file mode 100644
index 00000000..bfc9c5a6
--- /dev/null
+++ b/doc/reference/api/TSAPI.en.rst
@@ -0,0 +1,145 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+       http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+=====
+TSAPI
+=====
+
+Introduction to the Apache Traffic Server API.
+
+Synopsis
+========
+| `#include <ts/ts.h>`
+| `#include <ts/remap.h>`
+
+Description
+===========
+The Apache Traffic Server API enables you to create plugins, using
+the C programming language, that customize the behavior of your
+Traffic Server installation.
+
+Traffic Server enables sophisticated caching and processing of
+web-related traffic, such as DNS and HTTP requests and responses.
+Traffic Server itself consists of an event-driven loop that can be
+simplified as follows::
+
+    for (;;) {
+        event = get_next_event();
+        handle_event (event);
+    }
+
+You compile your plugin source code to create a shared library that
+Traffic Server loads when it is started. Your plugin contains
+callback functions that are registered for specific Traffic Server
+events. When Traffic Server needs to process an event, it invokes
+any and all call-back functions you've registered for that event
+type.
+
+Possible uses for plugins include the following:
+
+* HTTP processing plugins can filter, blacklist, authorize users or transform content.
+* Protocol plugins can enable Traffic Server to proxy-cache new protocol content.
+* A blacklisting plugin denies attempts to access web sites that are off-limits.
+* Append transform plugins add data to HTTP response content.
+* An image conversion plugin transforms JPEG images to GIF images.
+* Compression plugins send response content to a compression server
+  that compresses the data (alternatively, a compression library local
+  to the Traffic Server host machine could do the compression).
+* Authorization plugins check a user's permissions to access
+  particular web sites. The plugin could consult a local authorization
+  program or send queries to an authorization server.
+* A plugin that gathers client information from request headers
+  and enters this information in a database.
+* A protocol plugin listen for specific protocol requests on a
+  designated port and then uses Traffic Server's proxy server and
+  cache to serve client requests.
+
+Naming conventions
+==================
+
+The Traffic Server API adheres to the following naming conventions:
+
+* The TS prefix is used for all function and variable names defined
+  in the Traffic Server API. For example, :data:`TS_EVENT_NONE`, :type:`TSMutex`,
+  and :func:`TSContCreate`.
+* Enumerated values are always written in all uppercase letters.
+  For example, :data:`TS_EVENT_NONE` and :data:`TS_VC_CLOSE_ABORT`.
+* Constant values are all uppercase; enumerated values can be seen
+  as a subset of constants. For example, :data:`TS_URL_SCHEME_FILE` and
+  :data:`TS_MIME_FIELD_ACCEPT`.
+* The names of defined types are mixed-case. For example, :type:`TSHttpSsn`
+  and :func:`TSHttpTxn`. :func:`TSDebug`
+* Function names are mixed-case. For example, :func:`TSUrlCreate`
+  and :func:`TSContDestroy`.
+* Function names use the following subject-verb naming style:
+  TS-<subject>-<verb>, where <subject> goes from general to specific.
+  This makes it easier to determine what a function does by reading
+  its name. For example, the function to retrieve the password field
+  (the specific subject) from a URL (the general subject) is
+  :func:`TSUrlPasswordGet`.
+* Common verbs like Create, Destroy, Get, Set, Copy, Find, Retrieve,
+  Insert, Remove, and Delete are used only when appropriate.
+
+Plugin loading and configuration
+================================
+
+When Traffic Server is first started, it consults the plugin.config
+file to determine the names of all shared plugin libraries that
+need to be loaded. The plugin.config file also defines arguments
+that are to be passed to each plugin's initialization function,
+:func:`TSPluginInit`. The :file:`records.config` file defines the path to
+each plugin shared library.
+
+The sample :file:`plugin.config` file below contains a comment line, a blank
+line, and two plugin configurations::
+
+    # This is a comment line.
+    my-plugin.so www.junk.com www.trash.com www.garbage.com
+    some-plugin.so arg1 arg2 $proxy.config.http.cache.on
+
+Each plugin configuration in the :file:`plugin.config` file resembles
+a UNIX or DOS shell command; each line in :file:`plugin.config`
+cannot exceed 1023 characters.
+
+The first plugin configuration is for a plugin named my-plugin.so.
+It contains three arguments that are to be passed to that plugin's
+initialization routine. The second configuration is for a plugin
+named some-plugin.so; it contains three arguments. The last argument,
+$proxy.config.http.cache.on, is actually a configuration variable.
+Traffic Server will look up the specified configuration variable
+and substitute its value.
+
+Plugins are loaded and initialized by Traffic Server in the order
+they appear in the :file:`plugin.config` file.
+
+Plugin initialization
+=====================
+
+Each plugin must define an initialization function named
+:func:`TSPluginInit` that Traffic Server invokes when the
+plugin is loaded. :func:`TSPluginInit` is commonly used to
+read configuration information and register hooks for event
+notification.
+
+Files
+=====
+:file:`{CONFIG_DIR}/plugin.config`, :file:`{CONFIG_DIR}/records.config`
+
+See also
+========
+:manpage:`TSPluginInit(3ts)`
diff --git a/doc/reference/api/TSActionCancel.en.rst b/doc/reference/api/TSActionCancel.en.rst
new file mode 100644
index 00000000..cf76213b
--- /dev/null
+++ b/doc/reference/api/TSActionCancel.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSActionCancel
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSActionCancel(TSAction actionp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSActionDone.en.rst b/doc/reference/api/TSActionDone.en.rst
new file mode 100644
index 00000000..ec95a34d
--- /dev/null
+++ b/doc/reference/api/TSActionDone.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSActionDone
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSActionDone(TSAction actionp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSCacheRead.en.rst b/doc/reference/api/TSCacheRead.en.rst
new file mode 100644
index 00000000..96013cc5
--- /dev/null
+++ b/doc/reference/api/TSCacheRead.en.rst
@@ -0,0 +1,46 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSCacheRead
+===========
+
+Asks the Traffic Server cache if the object corresponding to key
+exists in the cache and can be read.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSCacheRead(TSCont contp, TSCacheKey key)
+
+
+Description
+-----------
+
+If the object can be read, the Traffic Server cache calls the
+continuation contp back with the event
+:c:data:`TS_EVENT_CACHE_OPEN_READ`.  In this case, the cache also
+passes contp a cache vconnection and contp can then initiate a read
+operation on that vconnection using :c:type:`TSVConnRead`.
+
+If the object cannot be read, the cache calls contp back with the
+event :c:data:`TS_EVENT_CACHE_OPEN_READ_FAILED`.  The user (contp) has
+the option to cancel the action returned by :c:type:`TSCacheRead`.
+Note that reentrant calls are possible, i.e. the cache can call back
+the user (contp) in the same call.
diff --git a/doc/reference/api/TSCacheRemove.en.rst b/doc/reference/api/TSCacheRemove.en.rst
new file mode 100644
index 00000000..10a0f0a1
--- /dev/null
+++ b/doc/reference/api/TSCacheRemove.en.rst
@@ -0,0 +1,43 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSCacheRemove
+=============
+
+Removes the object corresponding to key from the cache.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSCacheRemove(TSCont contp, TSCacheKey key)
+
+
+Description
+-----------
+
+If the object was removed successfully, the cache calls contp back
+with the event :c:data:`TS_EVENT_CACHE_REMOVE`.  If the object was not
+found in the cache, the cache calls contp back with the event
+:c:data:`TS_EVENT_CACHE_REMOVE_FAILED`.
+
+In both of these callbacks, the user (contp) does not have to do
+anything.  The user does not get any vconnection from the cache, since
+no data needs to be transferred.  When the cache calls contp back with
+:c:data:`TS_EVENT_CACHE_REMOVE`, the remove has already been commited.
diff --git a/doc/reference/api/TSCacheWrite.en.rst b/doc/reference/api/TSCacheWrite.en.rst
new file mode 100644
index 00000000..0b8eeb55
--- /dev/null
+++ b/doc/reference/api/TSCacheWrite.en.rst
@@ -0,0 +1,52 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSCacheWrite
+============
+
+Asks the Traffic Server cache if contp can start writing the object
+(corresponding to key) to the cache.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSCacheWrite(TSCont contp, TSCacheKey key)
+
+
+Description
+-----------
+
+If the object can be written, the cache calls contp back with the
+event :c:data:`TS_EVENT_CACHE_OPEN_WRITE`.  In this case, the cache
+also passes contp a cache vconnection and contp can then initiate a
+write operation on that vconnection using :c:type:`TSVConnWrite`.  The
+object is not committed to the cache until the vconnection is closed.
+When all data has been transferred, the user (contp) must do an
+:c:type:`TSVConnClose`.  In case of any errors, the user MUST do an
+``TSVConnAbort(contp, 0)``.
+
+If the object cannot be written, the cache calls contp back with the
+event :c:data:`TS_EVENT_CACHE_OPEN_WRITE_FAILED`.  This can happen,
+for example, if there is another object with the same key being
+written to the cache.  The user (contp) has the option to cancel the
+action returned by :c:type:`TSCacheWrite`.
+
+Note that reentrant calls are possible, i.e. the cache can call back
+the user (contp) in the same call.
diff --git a/doc/reference/api/TSConfigDataGet.en.rst b/doc/reference/api/TSConfigDataGet.en.rst
new file mode 100644
index 00000000..168918f3
--- /dev/null
+++ b/doc/reference/api/TSConfigDataGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSConfigDataGet
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void* TSConfigDataGet(TSConfig configp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSConfigGet.en.rst b/doc/reference/api/TSConfigGet.en.rst
new file mode 100644
index 00000000..6683b8e8
--- /dev/null
+++ b/doc/reference/api/TSConfigGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSConfigGet
+===========
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSConfig TSConfigGet(unsigned int id)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSConfigRelease.en.rst b/doc/reference/api/TSConfigRelease.en.rst
new file mode 100644
index 00000000..e4e43898
--- /dev/null
+++ b/doc/reference/api/TSConfigRelease.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSConfigRelease
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSConfigRelease(unsigned int id, TSConfig configp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSConfigSet.en.rst b/doc/reference/api/TSConfigSet.en.rst
new file mode 100644
index 00000000..7c0420e8
--- /dev/null
+++ b/doc/reference/api/TSConfigSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSConfigSet
+===========
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: unsigned int TSConfigSet(unsigned int id, void *data, TSConfigDestroyFunc funcp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContCall.en.rst b/doc/reference/api/TSContCall.en.rst
new file mode 100644
index 00000000..20433de9
--- /dev/null
+++ b/doc/reference/api/TSContCall.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContCall
+==========
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSContCall(TSCont contp, TSEvent event, void *edata)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContCreate.en.rst b/doc/reference/api/TSContCreate.en.rst
new file mode 100644
index 00000000..3021f10e
--- /dev/null
+++ b/doc/reference/api/TSContCreate.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContCreate
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSCont TSContCreate(TSEventFunc funcp, TSMutex mutexp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContDataGet.en.rst b/doc/reference/api/TSContDataGet.en.rst
new file mode 100644
index 00000000..abb5ea5a
--- /dev/null
+++ b/doc/reference/api/TSContDataGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContDataGet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void* TSContDataGet(TSCont contp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContDataSet.en.rst b/doc/reference/api/TSContDataSet.en.rst
new file mode 100644
index 00000000..16c5a21d
--- /dev/null
+++ b/doc/reference/api/TSContDataSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContDataSet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSContDataSet(TSCont contp, void *data)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContDestroy.en.rst b/doc/reference/api/TSContDestroy.en.rst
new file mode 100644
index 00000000..2030f2f4
--- /dev/null
+++ b/doc/reference/api/TSContDestroy.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContDestroy
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSContDestroy(TSCont contp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContMutexGet.en.rst b/doc/reference/api/TSContMutexGet.en.rst
new file mode 100644
index 00000000..360f9efe
--- /dev/null
+++ b/doc/reference/api/TSContMutexGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContMutexGet
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMutex TSContMutexGet(TSCont contp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSContSchedule.en.rst b/doc/reference/api/TSContSchedule.en.rst
new file mode 100644
index 00000000..21c23d76
--- /dev/null
+++ b/doc/reference/api/TSContSchedule.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSContSchedule
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSContSchedule(TSCont contp, ink_hrtime timeout, TSThreadPool tp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSDebug.en.rst b/doc/reference/api/TSDebug.en.rst
new file mode 100644
index 00000000..e3b8d9d1
--- /dev/null
+++ b/doc/reference/api/TSDebug.en.rst
@@ -0,0 +1,93 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+       http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+=======
+TSDebug
+=======
+
+Traffic Server Debugging APIs.
+
+Synopsis
+========
+`#include <ts/ts.h>`
+
+.. function:: void TSDebug(const char * tag, const char * format, ...)
+.. function:: void TSError(const char * tag, const char * format, ...)
+.. function:: int TSIsDebugTagSet(const char * tag)
+.. function:: void TSDebugSpecific(int debug_flag, const char * tag, const char * format, ...)
+.. function:: void TSHttpTxnDebugSet(TSHttpTxn txnp, int on)
+.. function:: void TSHttpSsnDebugSet(TSHttpSsn ssn, int on)
+.. function:: int TSHttpTxnDebugGet(TSHttpTxn txnp)
+.. function:: int TSHttpSsnDebugGet(TSHttpSsn ssn)
+.. function:: const char* TSHttpServerStateNameLookup(TSServerState state)
+.. function:: const char* TSHttpHookNameLookup(TSHttpHookID hook)
+.. function:: const char* TSHttpEventNameLookup(TSEvent event)
+.. macro:: void TSAssert(expression)
+.. macro:: void TSReleaseAssert(expression)
+
+Description
+===========
+
+:func:`TSError` is similar to :func:`printf` except that instead
+of writing the output to the C standard output, it writes output
+to the Traffic Server error log.
+
+:func:`TSDebug` is the same as :func:`TSError` except that it only
+logs the debug message if the given debug tag is enabled. It writes
+output to the Traffic Server debug log.
+
+:func:`TSIsDebugTagSet` returns non-zero if the given debug tag is
+enabled.
+
+In debug mode, :macro:`TSAssert` Traffic Server to prints the file
+name, line number and expression, and then aborts. In release mode,
+the expression is not removed but the effects of printing an error
+message and aborting are. :macro:`TSReleaseAssert` prints an error
+message and aborts in both release and debug mode.
+
+:func:`TSDebugSpecific` emits a debug line even if the debug tag
+is turned off, as long as debug flag is enabled. This can be used
+in conjunction with :func:`TSHttpTxnDebugSet`, :func:`TSHttpSsnDebugSet`,
+:func:`TSHttpTxnDebugGet` and :func:`TSHttpSsnDebugGet` to enable
+debugging on specific session and transaction objects.
+
+:func:`TSHttpServerStateNameLookup`, :func:`TSHttpHookNameLookup` and
+:func:`TSHttpEventNameLookup` converts the respective internal state to a
+string representation. This can be useful in debugging (:func:`TSDebug`),
+logging and other types notifications.
+
+Examples
+========
+
+This example uses :func:`TSDebugSpecific` to log a message when a specific
+debugging flag is enabled::
+
+    #include <ts/ts.h>
+
+    // Produce information about a hook receiving an event
+    TSDebug(PLUGIN_NAME, "Entering hook=%s, event=%s",
+            TSHttpHookNameLookup(hook), TSHttpEventNameLookup(event));
+
+    // Emit debug message if "tag" is enabled or the txn debug
+    // flag is set.
+    TSDebugSpecifc(TSHttpTxnDebugGet(txn), "tag" ,
+            "Hello World from transaction %p", txn);
+
+See also
+========
+:manpage:`TSAPI(3ts)`, :manpage:`printf(3)`
diff --git a/doc/reference/api/TSHostLookup.en.rst b/doc/reference/api/TSHostLookup.en.rst
new file mode 100644
index 00000000..7e5066bd
--- /dev/null
+++ b/doc/reference/api/TSHostLookup.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHostLookup
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSHostLookup(TSCont contp, const char *hostname, size_t namelen)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHostLookupResultAddrGet.en.rst b/doc/reference/api/TSHostLookupResultAddrGet.en.rst
new file mode 100644
index 00000000..961a767c
--- /dev/null
+++ b/doc/reference/api/TSHostLookupResultAddrGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHostLookupResultAddrGet
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: sockaddr const* TSHostLookupResultAddrGet(TSHostLookupResult lookup_result)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpConnect.en.rst b/doc/reference/api/TSHttpConnect.en.rst
new file mode 100644
index 00000000..3289c699
--- /dev/null
+++ b/doc/reference/api/TSHttpConnect.en.rst
@@ -0,0 +1,42 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpConnect
+=============
+
+Allows the plugin to initiate an http connection.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVConn TSHttpConnect(sockaddr const *addr)
+
+
+Description
+-----------
+
+The :c:type:`TSVConn` the plugin receives as the result of successful
+operates identically to one created through :c:type:`TSNetConnect`.
+Aside from allowing the plugin to set the client ip and port for
+logging, the functionality of :c:func:`TSHttpConnect` is identical to
+connecting to localhost on the proxy port with :c:func:`TSNetConnect`.
+:c:func:`TSHttpConnect` is more efficient than :c:func:`TSNetConnect`
+to localhost since it avoids the overhead of passing the data through
+the operating system.
diff --git a/doc/reference/api/TSHttpHdrClone.en.rst b/doc/reference/api/TSHttpHdrClone.en.rst
new file mode 100644
index 00000000..9a41beb6
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrClone.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrClone
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc *locp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrCopy.en.rst b/doc/reference/api/TSHttpHdrCopy.en.rst
new file mode 100644
index 00000000..2b8f86ff
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrCopy.en.rst
@@ -0,0 +1,45 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrCopy
+=============
+
+Copies the contents of the HTTP header located at src_loc within
+src_bufp to the HTTP header located at dest_loc within dest_bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrCopy(TSMBuffer dest_bufp, TSMLoc dest_offset, TSMBuffer src_bufp, TSMLoc src_offset)
+
+
+Description
+-----------
+
+:c:func:`TSHttpHdrCopy` works correctly even if src_bufp and dest_bufp
+point to different marshal buffers.  Make sure that you create the
+destination HTTP header before copying into it.
+
+.. note::
+
+   :c:func:`TSHttpHdrCopy` appends the port number to the domain of
+   the URL portion of the header.  For example, a copy of
+   http://www.example.com appears as http://www.example.com:80 in the
+   destination buffer.
diff --git a/doc/reference/api/TSHttpHdrCreate.en.rst b/doc/reference/api/TSHttpHdrCreate.en.rst
new file mode 100644
index 00000000..11dd7f9e
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrCreate.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrCreate
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMLoc TSHttpHdrCreate(TSMBuffer bufp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrDestroy.en.rst b/doc/reference/api/TSHttpHdrDestroy.en.rst
new file mode 100644
index 00000000..d8b548fe
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrDestroy.en.rst
@@ -0,0 +1,37 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrDestroy
+================
+
+Destroys the HTTP header located at hdr_loc within the marshal buffer
+bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpHdrDestroy(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
+
+Do not forget to release the handle hdr_loc with a call to
+:c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSHttpHdrLengthGet.en.rst b/doc/reference/api/TSHttpHdrLengthGet.en.rst
new file mode 100644
index 00000000..2060292e
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrLengthGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrLengthGet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSHttpHdrLengthGet(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrMethodGet.en.rst b/doc/reference/api/TSHttpHdrMethodGet.en.rst
new file mode 100644
index 00000000..f1268757
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrMethodGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrMethodGet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: const char* TSHttpHdrMethodGet(TSMBuffer bufp, TSMLoc offset, int *length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrMethodSet.en.rst b/doc/reference/api/TSHttpHdrMethodSet.en.rst
new file mode 100644
index 00000000..07cab499
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrMethodSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrMethodSet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrMethodSet(TSMBuffer bufp, TSMLoc offset, const char *value, int length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrPrint.en.rst b/doc/reference/api/TSHttpHdrPrint.en.rst
new file mode 100644
index 00000000..3f139966
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrPrint.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrPrint
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpHdrPrint(TSMBuffer bufp, TSMLoc offset, TSIOBuffer iobufp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrReasonGet.en.rst b/doc/reference/api/TSHttpHdrReasonGet.en.rst
new file mode 100644
index 00000000..46a9a360
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrReasonGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrReasonGet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: const char* TSHttpHdrReasonGet(TSMBuffer bufp, TSMLoc offset, int *length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrReasonLookup.en.rst b/doc/reference/api/TSHttpHdrReasonLookup.en.rst
new file mode 100644
index 00000000..9b85b15e
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrReasonLookup.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrReasonLookup
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: const char* TSHttpHdrReasonLookup(TSHttpStatus status)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrReasonSet.en.rst b/doc/reference/api/TSHttpHdrReasonSet.en.rst
new file mode 100644
index 00000000..3628711f
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrReasonSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrReasonSet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrReasonSet(TSMBuffer bufp, TSMLoc offset, const char *value, int length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrStatusGet.en.rst b/doc/reference/api/TSHttpHdrStatusGet.en.rst
new file mode 100644
index 00000000..1414b0a1
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrStatusGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrStatusGet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSHttpStatus TSHttpHdrStatusGet(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrStatusSet.en.rst b/doc/reference/api/TSHttpHdrStatusSet.en.rst
new file mode 100644
index 00000000..f1a60df4
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrStatusSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrStatusSet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrStatusSet(TSMBuffer bufp, TSMLoc offset, TSHttpStatus status)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrTypeGet.en.rst b/doc/reference/api/TSHttpHdrTypeGet.en.rst
new file mode 100644
index 00000000..fe191202
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrTypeGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrTypeGet
+================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSHttpType TSHttpHdrTypeGet(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrTypeSet.en.rst b/doc/reference/api/TSHttpHdrTypeSet.en.rst
new file mode 100644
index 00000000..63e05dce
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrTypeSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrTypeSet
+================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrTypeSet(TSMBuffer bufp, TSMLoc offset, TSHttpType type)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrUrlGet.en.rst b/doc/reference/api/TSHttpHdrUrlGet.en.rst
new file mode 100644
index 00000000..c32117c1
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrUrlGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrUrlGet
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrUrlGet(TSMBuffer bufp, TSMLoc offset, TSMLoc *locp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrUrlSet.en.rst b/doc/reference/api/TSHttpHdrUrlSet.en.rst
new file mode 100644
index 00000000..c7ca820f
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrUrlSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrUrlSet
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrUrlSet(TSMBuffer bufp, TSMLoc offset, TSMLoc url)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrVersionGet.en.rst b/doc/reference/api/TSHttpHdrVersionGet.en.rst
new file mode 100644
index 00000000..1c56ef83
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrVersionGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrVersionGet
+===================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSHttpHdrVersionGet(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHdrVersionSet.en.rst b/doc/reference/api/TSHttpHdrVersionSet.en.rst
new file mode 100644
index 00000000..d3502dfa
--- /dev/null
+++ b/doc/reference/api/TSHttpHdrVersionSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpHdrVersionSet
+===================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpHdrVersionSet(TSMBuffer bufp, TSMLoc offset, int ver)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpHookAdd.en.rst b/doc/reference/api/TSHttpHookAdd.en.rst
new file mode 100644
index 00000000..8fc009b8
--- /dev/null
+++ b/doc/reference/api/TSHttpHookAdd.en.rst
@@ -0,0 +1,113 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. default-domain:: c
+
+=============
+TSHttpHookAdd
+=============
+
+Intercept Traffic Server events.
+
+Synopsis
+========
+`#include <ts/ts.h>`
+
+.. function:: void TSHttpHookAdd(TSHttpHookID id, TSCont contp)
+.. function:: void TSHttpSsnHookAdd(TSHttpSsn ssnp, TSHttpHookID id, TSCont contp)
+.. function:: void TSHttpTxnHookAdd(TSHttpTxn txnp, TSHttpHookID id, TSCont contp)
+
+Description
+===========
+
+Hooks are points in Apache Traffic Server transaction HTTP processing
+where plugins can step in and do some work. Registering a plugin
+function for callback amounts to adding the function to a hook. You
+can register your plugin to be called back for every single
+transaction, or for specific transactions only.
+
+HTTP :term:`transaction` hooks are set on a global basis using the function
+:func:`TSHttpHookAdd`. This means that the continuation specified
+as the parameter to :func:`TSHttpHookAdd` is called for every
+transaction. :func:`TSHttpHookAdd` is typically called from
+:func:`TSPluginInit` or :func:`TSRemapInit`.
+
+:func:`TSHttpSsnHookAdd` adds :arg:`contp` to
+the end of the list of HTTP :term:`session` hooks specified by :arg:`id`.
+This means that :arg:`contp` is called back for every transaction
+within the session, at the point specified by the hook ID. Since
+:arg:`contp` is added to a session, it is not possible to call
+:func:`TSHttpSsnHookAdd` from the plugin initialization routine;
+the plugin needs a handle to an HTTP session.
+
+:func:`TSHttpTxnHookAdd` adds :arg:`contp`
+to the end of the list of HTTP transaction hooks specified by
+:arg:`id`. Since :arg:`contp` is added to a transaction, it is
+not possible to call :func:`TSHttpTxnHookAdd` from the plugin
+initialization routine but only when the plugin has a handle to an
+HTTP transaction.
+
+Return values
+=============
+
+None. Adding hooks is always successful.
+
+Examples
+========
+
+The following example demonstrates how to add global, session and
+transaction hooks::
+
+    #include <ts/ts.h>
+
+    static int
+    handler(TSCont contp, TSEvent event, void *edata)
+    {
+        TSHttpSsn ssnp;
+        TSHttpTxn txnp;
+
+        switch (event){
+        case TS_EVENT_HTTP_SSN_START:
+            ssnp = (TSHttpSsn) edata;
+            // Add a session hook ...
+            TSHttpSsnHookAdd(ssnp, TS_HTTP_TXN_START_HOOK, contp);
+            TSHttpSsnReenable(ssnp, TS_EVENT_HTTP_CONTINUE);
+            return 0;
+        case TS_EVENT_HTTP_TXN_START:
+            txnp = (TSHttpTxn) edata;
+            // Add a transaction hook ...
+            TSHttpTxnHookAdd(ssnp, TS_HTTP_READ_REQUEST_HDR_HOOK, contp);
+            TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+            return 0;
+        default:
+             break;
+        }
+
+        return 0;
+    }
+
+    void
+    TSPluginInit (int argc, const char *argv[])
+    {
+        TSCont contp;
+        contp = TSContCreate(handler, NULL);
+        TSHttpHookAdd(TS_HTTP_SSN_START_HOOK, contp);
+    }
+
+See also
+========
+:manpage:`TSAPI(3ts)`, :manpage:`TSContCreate(3ts)`, :manpage:`TSLifecycleHookAdd(3ts)`
diff --git a/doc/reference/api/TSHttpIsInternalRequest.en.rst b/doc/reference/api/TSHttpIsInternalRequest.en.rst
new file mode 100644
index 00000000..2ac5b2d0
--- /dev/null
+++ b/doc/reference/api/TSHttpIsInternalRequest.en.rst
@@ -0,0 +1,59 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+       http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+=======================
+TSHttpIsInternalRequest
+=======================
+
+Test whether a request is internally-generated.
+
+Synopsis
+========
+`#include <ts/ts.h>`
+
+.. function:: TSReturnCode TSHttpIsInternalRequest(TSHttpTxn txnp)
+.. function:: TSReturnCode TSHttpIsInternalSession(TSHttpSsn ssnp)
+
+Description
+===========
+
+:func:`TSHttpIsInternalRequest` tests whether a HTTP transaction
+was originated within Traffic Server.
+
+:func:`TSHttpIsInternalSession` tests whether a HTTP session
+was originated within Traffic Server.
+
+Return Values
+=============
+
+Both these APIs returns a :type:`TSReturnCode`, indicating whether the
+object was internal (:data:`TS_SUCCESS`) or not (:data:`TS_ERROR`).
+
+Examples
+========
+
+The ESI plugin uses :func:`TSHttpIsInternalRequest` to ignore requests that is
+had generated while fetching portions of an ESI document:
+
+.. literalinclude:: ../../../plugins/experimental/esi/esi.cc
+  :language: c
+  :lines: 1395-1398
+
+See also
+========
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSHttpOverridableConfig.en.rst b/doc/reference/api/TSHttpOverridableConfig.en.rst
new file mode 100644
index 00000000..d6f092c7
--- /dev/null
+++ b/doc/reference/api/TSHttpOverridableConfig.en.rst
@@ -0,0 +1,155 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. default-domain:: c
+
+.. _ts-overridable-config:
+
+=======================
+TSHttpOverridableConfig
+=======================
+
+Synopsis
+========
+`#include <ts/ts.h>`
+
+.. type:: TSOverridableConfigKey
+
+.. function:: TSReturnCode TSHttpTxnConfigIntSet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtInt value)
+.. function:: TSReturnCode TSHttpTxnConfigIntGet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtInt* value)
+.. function:: TSReturnCode TSHttpTxnConfigFloatSet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtFloat value)
+.. function:: TSReturnCode TSHttpTxnConfigFloatGet(TSHttpTxn txnp, TSOverridableConfigKey key, TSMgmtFloat* value)
+.. function:: TSReturnCode TSHttpTxnConfigStringSet(TSHttpTxn txnp, TSOverridableConfigKey key, const char* value, int length)
+.. function:: TSReturnCode TSHttpTxnConfigStringGet(TSHttpTxn txnp, TSOverridableConfigKey key, const char** value, int* length)
+.. function:: TSReturnCode TSHttpTxnConfigFind(const char* name, int length, TSOverridableConfigKey* key, TSRecordDataType* type)
+
+Description
+===========
+
+Some of the values that are set in :file:`records.config` can be changed for a specific transaction. It is important to
+note that these functions change the configuration values stored for the transation, which is not quite the same as
+changing the actual operating values of the transaction. The critical effect is the value must be changed before it is
+used by the transaction - after that, changes will not have any effect.
+
+All of the ``...Get`` functions store the internal value in the storage indicated by the :arg:`value` argument. For strings :arg:`length*` will receive the length of the string.
+
+The values are identified by the enumeration :type:`TSOverridableConfigKey`. String values can be used indirectly by
+first passing them to :func:`TSHttpTxnConfigFind` which, if the string matches an overridable value, return the key and data
+type.
+
+Configurations
+==============
+
+The following configurations (from ``records.config``) are overridable: ::
+
+    proxy.config.url_remap.pristine_host_hdr
+    proxy.config.http.chunking_enabled
+    proxy.config.http.negative_caching_enabled
+    proxy.config.http.negative_caching_lifetime
+    proxy.config.http.cache.when_to_revalidate
+    proxy.config.http.keep_alive_enabled_in
+    proxy.config.http.keep_alive_enabled_out
+    proxy.config.http.keep_alive_post_out
+    proxy.config.http.share_server_sessions
+    proxy.config.net.sock_recv_buffer_size_out
+    proxy.config.net.sock_send_buffer_size_out
+    proxy.config.net.sock_option_flag_out
+    proxy.config.http.forward.proxy_auth_to_parent
+    proxy.config.http.anonymize_remove_from
+    proxy.config.http.anonymize_remove_referer
+    proxy.config.http.anonymize_remove_user_agent
+    proxy.config.http.anonymize_remove_cookie
+    proxy.config.http.anonymize_remove_client_ip
+    proxy.config.http.anonymize_insert_client_ip
+    proxy.config.http.response_server_enabled
+    proxy.config.http.insert_squid_x_forwarded_for
+    proxy.config.http.server_tcp_init_cwnd
+    proxy.config.http.send_http11_requests
+    proxy.config.http.cache.http
+    proxy.config.http.cache.cluster_cache_local
+    proxy.config.http.cache.ignore_client_no_cache
+    proxy.config.http.cache.ignore_client_cc_max_age
+    proxy.config.http.cache.ims_on_client_no_cache
+    proxy.config.http.cache.ignore_server_no_cache
+    proxy.config.http.cache.cache_responses_to_cookies
+    proxy.config.http.cache.ignore_authentication
+    proxy.config.http.cache.cache_urls_that_look_dynamic
+    proxy.config.http.cache.required_headers
+    proxy.config.http.insert_request_via_str
+    proxy.config.http.insert_response_via_str
+    proxy.config.http.cache.heuristic_min_lifetime
+    proxy.config.http.cache.heuristic_max_lifetime
+    proxy.config.http.cache.guaranteed_min_lifetime
+    proxy.config.http.cache.guaranteed_max_lifetime
+    proxy.config.http.cache.max_stale_age
+    proxy.config.http.keep_alive_no_activity_timeout_in
+    proxy.config.http.keep_alive_no_activity_timeout_out
+    proxy.config.http.transaction_no_activity_timeout_in
+    proxy.config.http.transaction_no_activity_timeout_out
+    proxy.config.http.transaction_active_timeout_out
+    proxy.config.http.origin_max_connections
+    proxy.config.http.connect_attempts_max_retries
+    proxy.config.http.connect_attempts_max_retries_dead_server
+    proxy.config.http.connect_attempts_rr_retries
+    proxy.config.http.connect_attempts_timeout
+    proxy.config.http.post_connect_attempts_timeout
+    proxy.config.http.down_server.cache_time
+    proxy.config.http.down_server.abort_threshold
+    proxy.config.http.cache.fuzz.time
+    proxy.config.http.cache.fuzz.min_time
+    proxy.config.http.doc_in_cache_skip_dns
+    proxy.config.http.background_fill_active_timeout
+    proxy.config.http.response_server_str
+    proxy.config.http.cache.heuristic_lm_factor
+    proxy.config.http.cache.fuzz.probability
+    proxy.config.http.background_fill_completed_threshold
+    proxy.config.net.sock_packet_mark_out
+    proxy.config.net.sock_packet_tos_out
+    proxy.config.http.insert_age_in_response
+    proxy.config.http.chunking.size
+    proxy.config.http.flow_control.enabled
+    proxy.config.http.flow_control.low_water
+    proxy.config.http.flow_control.high_water
+    proxy.config.http.cache.range.lookup
+    proxy.config.http.normalize_ae_gzip
+    proxy.config.http.default_buffer_size
+    proxy.config.http.default_buffer_water_mark
+    proxy.config.http.request_header_max_size
+    proxy.config.http.response_header_max_size
+    proxy.config.http.negative_revalidating_enabled
+    proxy.config.http.negative_revalidating_lifetime
+    proxy.config.http.accept_encoding_filter_enabled
+    proxy.config.http.cache.range.write
+
+
+Examples
+========
+
+Enable :ref:`transaction buffer control <transaction-buffering-control>` with a high water mark of 262144 and a low water mark of 65536. ::
+
+   int callback(TSCont contp, TSEvent event, void* data)
+   {
+      TSHttpTxn txnp = static_cast<TSHttpTxn>(data);
+      TSHttpTxnConfigIntSet(txnp, TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED, 1);
+      TSHttpTxnConfigIntSet(txnp, TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK, 262144);
+      TSHttpTxnConfigIntSet(txnp, TS_CONFIG_HTTP_FLOW_CONTROL_LOWER_WATER_MARK, 65536);
+      return 0;
+   }
+
+See also
+========
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSHttpParserCreate.en.rst b/doc/reference/api/TSHttpParserCreate.en.rst
new file mode 100644
index 00000000..7b857485
--- /dev/null
+++ b/doc/reference/api/TSHttpParserCreate.en.rst
@@ -0,0 +1,89 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+===================
+TSHttpParserCreate
+===================
+
+Parse HTTP headers from memory buffers.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSHttpParser TSHttpParserCreate(void)
+.. function:: void TSHttpParserClear(TSHttpParser parser)
+.. function:: void TSHttpParserDestroy(TSHttpParser parser)
+.. function:: TSParseResult TSHttpHdrParseReq(TSHttpParser parser, TSMBuffer bufp, TSMLoc offset, const char ** start, const char * end)
+.. function:: TSParseResult TSHttpHdrParseResp(TSHttpParser parser, TSMBuffer bufp, TSMLoc offset, const char ** start, const char * end)
+
+Description
+===========
+
+:func:`TSHttpParserCreate` creates an HTTP parser object. The
+parser's data structure contains information about the header being
+parsed. A single HTTP parser can be used multiple times, though not
+simultaneously. Before being used again, the parser must be cleared
+by calling :func:`TSHttpParserClear`.
+
+:func:`TSHttpHdrParseReq` parses an HTTP request header. The HTTP
+header :data:`offset` must already be created, and must reside
+inside the marshal buffer :data:`bufp`. The :data:`start` argument
+points to the current position of the string buffer being parsed
+and the :data:`end` argument points to one byte after the end of
+the buffer to be parsed. On return, :data:`start` is modified to
+point past the last character parsed.
+
+It is possible to parse an HTTP request header a single byte at a
+time using repeated calls to :func:`TSHttpHdrParseReq`. As long as
+an error does not occur, the :func:`TSHttpHdrParseReq` function
+will consume that single byte and ask for more. :func:`TSHttpHdrParseReq`
+should be called after :data:`TS_HTTP_READ_REQUEST_HDR_HOOK`.
+
+:func:`TSHttpHdrParseResp` operates in the same manner as
+:func:`TSHttpHdrParseReq` except it parses an HTTP response header.
+It should be called after :data:`TS_HTTP_READ_RESPONSE_HDR_HOOK`.
+
+:func:`TSHttpParserClear` clears the specified HTTP parser so it
+may be used again.
+
+:func:`TSHttpParserDestroy` destroys the TSHttpParser object pointed
+to by :data:`parser`. The :data:`parser` pointer must not be NULL.
+
+Return values
+=============
+
+:func:`TSHttpHdrParseReq` and :func:`TSHttpHdrParseResp` both return
+a :type:`TSParseResult` value. :data:`TS_PARSE_ERROR` is returned
+on error, :data:`TS_PARSE_CONT` is returned if parsing of the header
+stopped because the end of the buffer was reached, and
+:data:`TS_PARSE_DONE` or :data:`TS_PARSE_OK` when a \\r\\n\\r\\n
+pattern is encountered, indicating the end of the header.
+
+Bugs
+====
+
+The distinction between the :data:`TS_PARSE_DONE` and :data:`TS_PARSE_OK`
+results is not well-defined. Plugins should expect both status codes and
+treat them equivalently.
+
+See also
+========
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSHttpSsnReenable.en.rst b/doc/reference/api/TSHttpSsnReenable.en.rst
new file mode 100644
index 00000000..3ab1c694
--- /dev/null
+++ b/doc/reference/api/TSHttpSsnReenable.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpSsnReenable
+=================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpSsnReenable(TSHttpSsn ssnp, TSEvent event)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnCacheLookupStatusGet.en.rst b/doc/reference/api/TSHttpTxnCacheLookupStatusGet.en.rst
new file mode 100644
index 00000000..43932f0a
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnCacheLookupStatusGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnCacheLookupStatusGet
+=============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnCacheLookupStatusGet(TSHttpTxn txnp, int *lookup_status)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnCacheLookupUrlGet.en.rst b/doc/reference/api/TSHttpTxnCacheLookupUrlGet.en.rst
new file mode 100644
index 00000000..70fb52c2
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnCacheLookupUrlGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnCacheLookupUrlGet
+==========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnCacheLookupUrlGet(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnCachedReqGet.en.rst b/doc/reference/api/TSHttpTxnCachedReqGet.en.rst
new file mode 100644
index 00000000..f8f54c35
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnCachedReqGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnCachedReqGet
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnCachedReqGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnCachedRespGet.en.rst b/doc/reference/api/TSHttpTxnCachedRespGet.en.rst
new file mode 100644
index 00000000..1d43206a
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnCachedRespGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnCachedRespGet
+======================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnCachedRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnClientReqGet.en.rst b/doc/reference/api/TSHttpTxnClientReqGet.en.rst
new file mode 100644
index 00000000..927b2755
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnClientReqGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnClientReqGet
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnClientReqGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnClientRespGet.en.rst b/doc/reference/api/TSHttpTxnClientRespGet.en.rst
new file mode 100644
index 00000000..dd23efdd
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnClientRespGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnClientRespGet
+======================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnClientRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnErrorBodySet.en.rst b/doc/reference/api/TSHttpTxnErrorBodySet.en.rst
new file mode 100644
index 00000000..4b16e3b8
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnErrorBodySet.en.rst
@@ -0,0 +1,39 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnErrorBodySet
+=====================
+
+Sets an error type body to a transaction.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpTxnErrorBodySet(TSHttpTxn txnp, char *buf, size_t buflength, char *mimetype)
+
+
+Description
+-----------
+
+Note that both string arguments must be allocated with
+:c:func:`TSmalloc` or :c:func:`TSstrdup`.  The mimetype argument is
+optional, if not provided it defaults to "text/html".  Sending an
+emptry string would prevent setting a content type header
+(but that is not adviced).
diff --git a/doc/reference/api/TSHttpTxnIntercept.en.rst b/doc/reference/api/TSHttpTxnIntercept.en.rst
new file mode 100644
index 00000000..af2d6025
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnIntercept.en.rst
@@ -0,0 +1,50 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnIntercept
+==================
+
+Allows a plugin take over the servicing of the request as though it
+was the origin server.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpTxnIntercept(TSCont contp, TSHttpTxn txnp)
+
+
+Description
+-----------
+
+contp will be sent :c:data:`TS_EVENT_NET_ACCEPT`.  The edata passed
+with :c:data:`TS_NET_EVENT_ACCEPT` is an :c:type:`TSVConn` just as it
+would be for a normal accept.  The plugin must act as if it is an http
+server and read the http request and body off the :c:type:`TSVConn`
+and send an http response header and body.
+
+:c:func:`TSHttpTxnIntercept` must be called be called from only
+:c:data:`TS_HTTP_READ_REQUEST_HOOK`.  Using
+:c:type:`TSHttpTxnIntercept` will bypass the Traffic Server cache.  If
+response sent by the plugin should be cached, use
+:c:func:`TSHttpTxnServerIntercept` instead.
+:c:func:`TSHttpTxnIntercept` primary use is allow plugins to serve
+data about their functioning directly.
+
+:c:func:`TSHttpTxnIntercept` must only be called once per transaction.
diff --git a/doc/reference/api/TSHttpTxnMilestoneGet.en.rst b/doc/reference/api/TSHttpTxnMilestoneGet.en.rst
new file mode 100644
index 00000000..0e9f1ff8
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnMilestoneGet.en.rst
@@ -0,0 +1,85 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. default-domain:: c
+
+=====================
+TSHttpTxnMilestoneGet
+=====================
+
+Get a specified milestone timer value for the current transaction.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSReturnCode TSHttpTxnMilestoneGet(TSHttpTxn txnp, TSMilestonesType milestone, TSHRTime* time)
+
+Description
+===========
+
+:func:`TSHttpTxnMilestoneGet` will fetch a specific :arg:`milestone` timer value for the transaction :arg:`txnp`. These timers are
+calculated during the lifetime of a transaction and are measured in nanoseconds from the beginning of the transaction.
+:arg:`time` is used a pointer to storage to update if the call is successful.
+
+.. type:: TSMilestonesType
+
+=============================================== ==========
+Value                                           Milestone
+=============================================== ==========
+:const:`TS_MILESTONE_UA_BEGIN`                  The client connection is accepted.
+:const:`TS_MILESTONE_UA_READ_HEADER_DONE`       The request header from the client has been read and parsed.
+:const:`TS_MILESTONE_UA_BEGIN_WRITE`            The response header write to the client starts.
+:const:`TS_MILESTONE_UA_CLOSE`                  Last I/O activity on the client socket, or connection abort.
+:const:`TS_MILESTONE_SERVER_FIRST_CONNECT`      First time origin server connect attempted or shared shared session attached.
+:const:`TS_MILESTONE_SERVER_CONNECT`            Most recent time origin server connect attempted or shared session attached.
+:const:`TS_MILESTONE_SERVER_CONNECT_END`        More recent time a connection attempt was resolved.
+:const:`TS_MILESTONE_SERVER_BEGIN_WRITE`        First byte is written to the origin server connection.
+:const:`TS_MILESTONE_SERVER_FIRST_READ`         First byte is read from connection to origin server.
+:const:`TS_MILESTONE_SERVER_READ_HEADER_DONE`   Origin server response has been read and parsed.
+:const:`TS_MILESTONE_SERVER_CLOSE`              Last I/O activity on origin server connection.
+:const:`TS_MILESTONE_CACHE_OPEN_READ_BEGIN`     Initiate read of the cache.
+:const:`TS_MILESTONE_CACHE_OPEN_READ_END`       Initial cache read has resolved.
+:const:`TS_MILESTONE_CACHE_OPEN_WRITE_BEGIN`    Start open for cache write.
+:const:`TS_MILESTONE_CACHE_OPEN_WRITE_END`      Cache has been opened for write.
+:const:`TS_MILESTONE_DNS_LOOKUP_BEGIN`          Initiate host resolution in HostDB
+:const:`TS_MILESTONE_DNS_LOOKUP_END`            Host resolution resolves.
+:const:`TS_MILESTONE_SM_START`                  Transaction state machine is initialized.
+:const:`TS_MILESTONE_SM_FINISH`                 Transaction has finished, state machine final logging has started.
+=============================================== ==========
+
+*  The server connect times predate the transmission of the ``SYN`` packet. That is, before a connection to the
+   origin server is completed.
+
+*  A connection attempt is *resolved* when no more connection related activity remains to be done, and the connection is
+   either established or has failed.
+
+*  :const:`TS_MILESTONE_UA_CLOSE` and :const:`TS_MILESTONE_SERVER_CLOSE` are updated continuously during the life of the
+   transaction, every time there is I/O activity. The updating stops when the corresponding connection is closed,
+   leaving the last I/O time as the final value.
+
+*  The cache ``OPEN`` milestones time only the initial setup, the "open", not the full read or write.
+
+Return values
+=============
+
+:const:`TS_SUCCESS` if successful and :arg:`time` was updated, otherwise :const:`TS_ERROR`.
+
+See also
+========
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSHttpTxnNextHopAddrGet.en.rst b/doc/reference/api/TSHttpTxnNextHopAddrGet.en.rst
new file mode 100644
index 00000000..d0e6734e
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnNextHopAddrGet.en.rst
@@ -0,0 +1,39 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnNextHopAddrGet
+=======================
+
+Get the next hop address.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: sockaddr const* TSHttpTxnNextHopAddrGet(TSHttpTxn txnp)
+
+
+Description
+-----------
+
+.. note::
+
+   The pointer is valid only for the current callback.  Clients that
+   need to keep the value across callbacks must maintain their own
+   storage.
diff --git a/doc/reference/api/TSHttpTxnParentProxySet.en.rst b/doc/reference/api/TSHttpTxnParentProxySet.en.rst
new file mode 100644
index 00000000..a7c3a085
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnParentProxySet.en.rst
@@ -0,0 +1,37 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnParentProxySet
+=======================
+
+Sets the parent proxy name and port.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpTxnParentProxySet(TSHttpTxn txnp, char *hostname, int port)
+
+
+Description
+-----------
+
+The string hostname is copied into the :c:type:`TSHttpTxn`; you can
+modify or delete the string after calling
+:c:func:`TSHttpTxnParentProxySet`.
diff --git a/doc/reference/api/TSHttpTxnReenable.en.rst b/doc/reference/api/TSHttpTxnReenable.en.rst
new file mode 100644
index 00000000..1ca17cdc
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnReenable.en.rst
@@ -0,0 +1,42 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnReenable
+=================
+
+Notifies the HTTP transaction txnp that the plugin is finished
+processing the current hook.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpTxnReenable(TSHttpTxn txnp, TSEvent event)
+
+
+Description
+-----------
+
+The plugin tells the transaction to either continue
+(:c:data:`TS_EVENT_HTTP_CONTINUE`) or stop
+(:c:data:`TS_EVENT_HTTP_ERROR`).
+
+You must always reenable the HTTP transaction after the processing of
+each transaction event.  However, never reenable twice.  Reenabling
+twice is a serious error.
diff --git a/doc/reference/api/TSHttpTxnServerAddrGet.en.rst b/doc/reference/api/TSHttpTxnServerAddrGet.en.rst
new file mode 100644
index 00000000..7f0f315a
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnServerAddrGet.en.rst
@@ -0,0 +1,39 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnServerAddrGet
+======================
+
+Get the origin server address.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: sockaddr const* TSHttpTxnServerAddrGet(TSHttpTxn txnp)
+
+
+Description
+-----------
+
+.. note::
+
+   The pointer is valid only for the current callback.  Clients that
+   need to keep the value across callbacks must maintain their own
+   storage.
diff --git a/doc/reference/api/TSHttpTxnServerIntercept.en.rst b/doc/reference/api/TSHttpTxnServerIntercept.en.rst
new file mode 100644
index 00000000..7f066c3e
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnServerIntercept.en.rst
@@ -0,0 +1,69 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+========================
+TSHttpTxnServerIntercept
+========================
+
+Intercept origin server requests.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: void TSHttpTxnServerIntercept(TSCont contp, TSHttpTxn txnp)
+
+Description
+===========
+
+:func:`TSHttpTxnServerIntercept` allows a plugin take over the
+servicing of the request as though it was the origin server. In the
+event a request needs to be made to the server for transaction
+:arg:`txnp`, :arg:`contp` will be sent a :data:`TS_EVENT_NET_ACCEPT`
+event. The :arg:`edata` passed with :data:`TS_NET_EVENT_ACCEPT` is
+an :type:`TSVConn` just as it would be for a normal accept. The
+plugin must act as if it is an HTTP server and read the HTTP request
+and body from the :type:`TSVConn` and send an HTTP response header
+and body.
+
+:func:`TSHttpTxnServerIntercept` must be not be called after the
+connection to the server has taken place. This means that the last
+hook last hook that it can be called from is
+:data:`TS_HTTP_READ_CACHE_HDR_HOOK`. If a connection to the server
+is not necessary, the continuation :arg:`contp` will be sent a
+:data:`TS_EVENT_NET_ACCEPT_FAILED` event when the transaction
+completes.
+
+The response from the plugin is cached subject to standard and
+configured HTTP caching rules. Should the plugin wish the response
+not be cached, the plugin must use appropriate HTTP response headers
+to prevent caching. The primary purpose of :func:`TSHttpTxnServerIntercept`
+is allow plugins to provide gateways to other protocols or to allow
+to plugin to it's own transport for the next hop to the server.
+:func:`TSHttpTxnServerIntercept` overrides parent cache configuration.
+
+:func:`TSHttpTxnServerIntercept` must only be called once per
+transaction. The continuation :arg:`contp` must have been created
+with a valid :type:`TSMutex`.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSHttpTxnServerReqGet.en.rst b/doc/reference/api/TSHttpTxnServerReqGet.en.rst
new file mode 100644
index 00000000..bcc0ec1a
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnServerReqGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnServerReqGet
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnServerReqGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnServerRespGet.en.rst b/doc/reference/api/TSHttpTxnServerRespGet.en.rst
new file mode 100644
index 00000000..5eb4a0ad
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnServerRespGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnServerRespGet
+======================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnServerRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnSsnGet.en.rst b/doc/reference/api/TSHttpTxnSsnGet.en.rst
new file mode 100644
index 00000000..3682ffc5
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnSsnGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnSsnGet
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSHttpSsn TSHttpTxnSsnGet(TSHttpTxn txnp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnTransformRespGet.en.rst b/doc/reference/api/TSHttpTxnTransformRespGet.en.rst
new file mode 100644
index 00000000..c82c1300
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnTransformRespGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnTransformRespGet
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSHttpTxnTransformRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnTransformedRespCache.en.rst b/doc/reference/api/TSHttpTxnTransformedRespCache.en.rst
new file mode 100644
index 00000000..1a86c193
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnTransformedRespCache.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnTransformedRespCache
+=============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpTxnTransformedRespCache(TSHttpTxn txnp, int on)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSHttpTxnUntransformedRespCache.en.rst b/doc/reference/api/TSHttpTxnUntransformedRespCache.en.rst
new file mode 100644
index 00000000..624bfe04
--- /dev/null
+++ b/doc/reference/api/TSHttpTxnUntransformedRespCache.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSHttpTxnUntransformedRespCache
+===============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSHttpTxnUntransformedRespCache(TSHttpTxn txnp, int on)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSIOBufferBlockReadStart.en.rst b/doc/reference/api/TSIOBufferBlockReadStart.en.rst
new file mode 100644
index 00000000..8f430efe
--- /dev/null
+++ b/doc/reference/api/TSIOBufferBlockReadStart.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSIOBufferBlockReadStart
+========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: const char* TSIOBufferBlockReadStart(TSIOBufferBlock blockp, TSIOBufferReader readerp, int64_t *avail)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSIOBufferCopy.en.rst b/doc/reference/api/TSIOBufferCopy.en.rst
new file mode 100644
index 00000000..18fb9203
--- /dev/null
+++ b/doc/reference/api/TSIOBufferCopy.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSIOBufferCopy
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int64_t TSIOBufferCopy(TSIOBuffer bufp, TSIOBufferReader readerp, int64_t length, int64_t offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSIOBufferCreate.en.rst b/doc/reference/api/TSIOBufferCreate.en.rst
new file mode 100644
index 00000000..b902cfea
--- /dev/null
+++ b/doc/reference/api/TSIOBufferCreate.en.rst
@@ -0,0 +1,90 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+================
+TSIOBufferCreate
+================
+
+Traffic Server IO buffer API.
+
+Synopsis
+========
+`#include <ts/ts.h>`
+
+.. function:: TSIOBuffer TSIOBufferCreate(void)
+.. function:: TSIOBuffer TSIOBufferSizedCreate(TSIOBufferSizeIndex index)
+.. function:: void TSIOBufferDestroy(TSIOBuffer bufp)
+.. function:: int64_t TSIOBufferWrite(TSIOBuffer bufp, const void * buf, int64_t length)
+.. function:: void TSIOBufferProduce(TSIOBuffer bufp, int64_t nbytes)
+.. function:: int64_t TSIOBufferWaterMarkGet(TSIOBuffer bufp)
+.. function:: void TSIOBufferWaterMarkSet(TSIOBuffer bufp, int64_t water_mark)
+
+Description
+===========
+
+The :type:`TSIOBuffer` data structure is the building block of the TSVConn
+abstraction. An IO buffer is composed of a list of buffer blocks which
+are reference counted so that they can reside in multiple buffers at the
+same time. This makes it extremely efficient to copy data from one IO
+buffer to another using :func:`TSIOBufferCopy` since Traffic Server only needs to
+copy pointers and adjust reference counts appropriately and not actually
+copy any data; however applications should still strive to ensure data
+blocks are a reasonable size.
+
+The IO buffer abstraction provides for a single writer and multiple
+readers. In order for the readers to have no knowledge of each
+other, they manipulate IO buffers through the :type:`TSIOBufferReader`
+data structure. Since only a single writer is allowed, there is no
+corresponding :type:`TSIOBufferWriter` data structure. The writer
+simply modifies the IO buffer directly.
+
+:func:`TSIOBufferCreate` creates an empty :type:`TSIOBuffer`.
+
+:func:`TSIOBufferSizedCreate` creates an empty :type:`TSIOBuffer`
+with an initial capacity of index bytes.
+
+:func:`TSIOBufferDestroy` destroys the IO buffer bufp. Since multiple IO
+buffers can share data, this does not necessarily free all of the data
+associated with the IO buffer but simply decrements the appropriate reference counts.
+
+:func:`TSIOBufferWrite` appends length bytes from the buffer buf to the IO
+buffer bufp and returns the number of bytes successfully written into the
+IO buffer.
+
+:func:`TSIOBufferProduce` makes nbytes of data available for reading in the IO
+buffer bufp. A common pattern for writing to an IO buffer is to copy
+data into a buffer block and then call INKIOBufferProduce to make the new
+data visible to any readers.
+
+The watermark of an TSIOBuffer is the minimum number of bytes of data
+that have to be in the buffer before calling back any continuation that
+has initiated a read operation on this buffer. As a writer feeds data
+into the TSIOBuffer, no readers are called back until the amount of data
+reaches the watermark. Setting a watermark can improve performance
+because it avoids frequent callbacks to read small amounts of data.
+:func:`TSIOBufferWaterMarkGet` gets the current watermark for the IO buffer
+bufp.
+
+:func:`TSIOBufferWaterMarkSet` gets the current watermark for the IO buffer
+bufp to water_mark bytes.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`, :manpage:`TSIOBufferReaderAlloc(3ts)`
diff --git a/doc/reference/api/TSInstallDirGet.en.rst b/doc/reference/api/TSInstallDirGet.en.rst
new file mode 100644
index 00000000..9d310de9
--- /dev/null
+++ b/doc/reference/api/TSInstallDirGet.en.rst
@@ -0,0 +1,61 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+===============
+TSInstallDirGet
+===============
+
+Return Traffic Server installation directories.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: const char * TSInstallDirGet(void)
+.. function:: const char * TSConfigDirGet(void)
+.. function:: const char * TSPluginDirGet(void)
+
+Description
+===========
+
+:func:`TSInstallDirGet` returns the path to the root of the Traffic
+Server installation. :func:`TSConfigDirGet` and :func:`TSPluginDirGet`
+return the complete, absolute path to the configuration directory
+and the plugin installation directory respectively.
+
+Return values
+=============
+
+These functions all return a NUL-terminated string that must not be modified or freed.
+
+Examples
+========
+
+To load a file that is located in the Traffic Server configuration directory::
+
+    #include <ts/ts.h>
+    #include <stdio.h>
+
+    char * path;
+    asprintf(&path, "%s/example.conf", TSConfigDirGet());
+
+See also
+========
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSLifecycleHookAdd.en.rst b/doc/reference/api/TSLifecycleHookAdd.en.rst
new file mode 100644
index 00000000..672707c1
--- /dev/null
+++ b/doc/reference/api/TSLifecycleHookAdd.en.rst
@@ -0,0 +1,109 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. default-domain:: c
+
+.. _ts-lifecycle-hook-add:
+
+==================
+TSLifecycleHookAdd
+==================
+
+Synopsis
+========
+`#include <ts/ts.h>`
+
+.. function:: void TSLifecycleHookAdd(TSLifecycleHookID id, TSCont contp)
+
+Description
+===========
+
+:func:`TSLifecycleHookAdd` adds :arg:`contp` to the list of lifecycle hooks specified by :arg:`id`. Lifecycle hooks are
+based on the Traffic Server process, not on any specific transaction or session. These will typically be called only
+once during the execution of the Traffic Server process and therefore should be added in :func:`TSPluginInit` (which could itself be considered a lifecyle hook). Unlike other hooks, lifecycle hooks may not have a well defined ordering and use of them should not assume that one of the hooks is always called before another unless specifically mentioned.
+
+`TS_LIFECYCLE_PORTS_INITIALIZED_HOOK`
+   Called after the :ts:cv:`proxy server port <proxy.config.http.server_ports>` data structures have been initialized
+   but before connections are accepted on those ports. The sockets corresponding to the ports may or may not be open
+   depending on how the :program:`traffic_server` process was invoked. Other API functions that depend on server ports should be
+   called from this hook and not :func:`TSPluginInit`.
+
+   Invoked with the event `TS_EVENT_LIFECYCLE_PORTS_INITIALIZED` and `NULL` data.
+
+`TS_LIFECYCLE_PORTS_READY_HOOK`
+   Called after enabling connections on the proxy server ports. Because Traffic Server is threaded this may or may not
+   be called before any connections are accepted. The hook code may assume that any connection to Traffic Server started
+   after this hook is called will be accepted by Traffic Server, making this a convenient place to signal external
+   processes of that.
+
+   Invoked with the event `TS_EVENT_LIFECYCLE_PORTS_READY` and `NULL` data.
+
+`TS_LIFECYCLE_CACHE_READY_HOOK`
+   Called after Traffic Server cache initialization has finished.
+
+   Invoked with the event `TS_EVENT_LIFECYCLE_CACHE_READY` and `NULL` data.
+
+Ordering
+========
+
+`TS_LIFECYCLE_PORTS_INITIALIZED_HOOK` will always be called before `TS_LIFECYCLE_PORTS_READY_HOOK`.
+
+Examples
+========
+
+The following example demonstrates how to correctly use :func:`TSNetAcceptNamedProtocol`, which requires the proxy ports
+to be initialized and therefore does not work if called from :func:`TSPluginInit` directly. ::
+
+   #include <ts/ts.h>
+
+   #define SSL_PROTOCOL_NAME "whatever"
+
+   static int
+   ssl_proto_handler(TSCont contp, TSEvent event, void* data)
+   {
+      /// Do named protocol handling.
+   }
+
+   static int
+   local_ssl_init(TSCont contp, TSEvent event, void *edata)
+   {
+      if (TS_EVENT_LIFECYCLE_PORTS_INITIALIZED == event) { // just to be safe.
+         TSNetAcceptNamedProtocol(
+            TSContCreate(ssl_proto_handler, TSMutexCreate()),
+            SSL_PROTOCOL_NAME
+         );
+      }
+      return 0;
+   }
+
+   void
+   TSPluginInit (int argc, const char *argv[])
+   {
+      TSLifecycleHookAdd(TS_LIFECYCLE_PORTS_INITIALIZED_HOOK, TSContCreate(local_ssl_init, NULL));
+   }
+
+History
+=======
+
+Lifecycle hooks were introduced to solve process initialization ordering issues (`TS-1487 <https://issues.apache.org/jira/browse/TS-1487>`_). Different API calls required
+different modules of Traffic Server to be initialized for the call to work, but others did not work that late in initialization, which was problematic because all of them could effectively only be called from :func:`TSPluginInit` . The
+solution was to move :func:`TSPluginInit` as early as possible in the process initialization and provide hooks for API
+calls that needed to be invoked later which served essentially as additional pluging initialization points.
+
+See also
+========
+:manpage:`TSAPI(3ts)`, :manpage:`TSContCreate(3ts)`
diff --git a/doc/reference/api/TSMBufferCreate.en.rst b/doc/reference/api/TSMBufferCreate.en.rst
new file mode 100644
index 00000000..5277a058
--- /dev/null
+++ b/doc/reference/api/TSMBufferCreate.en.rst
@@ -0,0 +1,97 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+===============
+TSMBufferCreate
+===============
+
+Traffic Server marshall buffer API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSMBuffer TSMBufferCreate(void)
+.. function:: TSReturnCode TSMBufferDestroy(TSMBuffer bufp)
+.. function:: TSReturnCode TSHandleMLocRelease(TSMBuffer bufp, TSMLoc parent, TSMLoc mloc)
+
+Description
+===========
+
+The marshal buffer or :type:`TSMBuffer` is a heap data structure that stores
+parsed URLs, MIME headers and HTTP headers. You can allocate new objects
+out of marshal buffers, and change the values within the marshal buffer.
+Whenever you manipulate an object, you require the handle to the object
+(:type:`TSMLoc`) and the marshal buffer containing the object (:type:`TSMBuffer`).
+
+Any marshal buffer fetched by :func:`TSHttpTxn*Get` will be used by other parts
+of the system. Be careful not to destroy these shared, transaction marshal buffers.
+
+:func:`TSMBufferCreate` creates a new marshal buffer and initializes
+the reference count. :func:`TSMBufferDestroy` Ignores the reference
+count and destroys the marshal buffer bufp. The internal data buffer
+associated with the marshal buffer is also destroyed if the marshal
+buffer allocated it.
+
+:func:`TSHandleMLocRelease` Releases the :type:`TSMLoc` mloc created
+from the :type:`TSMLoc` parent. If a :type:`TSMLoc` is obtained from
+a transaction, it does not have a parent :type:`TSMLoc`. Use the
+the constant :data:`TS_NULL_MLOC` as its parent.
+
+Return values
+=============
+
+:func:`TSMBufferDestroy` and :func:`TSHandleMLocRelease` return
+:data:`TS_SUCCESS` on success, or :data:`TS_ERROR` on failure.
+:func:`TSMBufferCreate` returns the new :type:`TSMBuffer`.
+
+Examples
+========
+
+::
+
+    #include <ts/ts.h>
+
+    static void
+    copyResponseMimeHdr (TSCont pCont, TSHttpTxn pTxn)
+    {
+        TSMBuffer respHdrBuf, tmpBuf;
+        TSMLoc respHttpHdrLoc, tmpMimeHdrLoc;
+
+        if (!TSHttpTxnClientRespGet(pTxn, &respHdrBuf, &respHttpHdrLoc)) {
+            TSError("couldn't retrieve client response header0);
+            TSHandleMLocRelease(respHdrBuf, TS_NULL_MLOC, respHttpHdrLoc);
+            goto done;
+        }
+
+        tmpBuf = TSMBufferCreate();
+        tmpMimeHdrLoc = TSMimeHdrCreate(tmpBuf);
+        TSMimeHdrCopy(tmpBuf, tmpMimeHdrLoc, respHdrBuf, respHttpHdrLoc);
+        TSHandleMLocRelease(tmpBuf, TS_NULL_MLOC, tmpMimeHdrLoc);
+        TSHandleMLocRelease(respHdrBuf, TS_NULL_MLOC, respHttpHdrLoc);
+        TSMBufferDestroy(tmpBuf);
+
+    done:
+        TSHttpTxnReenable(pTxn, TS_EVENT_HTTP_CONTINUE);
+    }
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSMgmtCounterGet.en.rst b/doc/reference/api/TSMgmtCounterGet.en.rst
new file mode 100644
index 00000000..187a1d94
--- /dev/null
+++ b/doc/reference/api/TSMgmtCounterGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMgmtCounterGet
+================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMgmtCounterGet(const char *var_name, TSMgmtCounter *result)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMgmtFloatGet.en.rst b/doc/reference/api/TSMgmtFloatGet.en.rst
new file mode 100644
index 00000000..9a5163a9
--- /dev/null
+++ b/doc/reference/api/TSMgmtFloatGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMgmtFloatGet
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMgmtFloatGet(const char *var_name, TSMgmtFloat *result)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMgmtIntGet.en.rst b/doc/reference/api/TSMgmtIntGet.en.rst
new file mode 100644
index 00000000..79fd1522
--- /dev/null
+++ b/doc/reference/api/TSMgmtIntGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMgmtIntGet
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMgmtIntGet(const char *var_name, TSMgmtInt *result)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMgmtStringGet.en.rst b/doc/reference/api/TSMgmtStringGet.en.rst
new file mode 100644
index 00000000..5b501e77
--- /dev/null
+++ b/doc/reference/api/TSMgmtStringGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMgmtStringGet
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMgmtStringGet(const char *var_name, TSMgmtString *result)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMgmtUpdateRegister.en.rst b/doc/reference/api/TSMgmtUpdateRegister.en.rst
new file mode 100644
index 00000000..91bd9e55
--- /dev/null
+++ b/doc/reference/api/TSMgmtUpdateRegister.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMgmtUpdateRegister
+====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSMgmtUpdateRegister(TSCont contp, const char *plugin_name)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrClone.en.rst b/doc/reference/api/TSMimeHdrClone.en.rst
new file mode 100644
index 00000000..a930ed90
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrClone.en.rst
@@ -0,0 +1,39 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrClone
+==============
+
+Copies a specified MIME header to a specified marshal buffer, and
+returns the location of the copied MIME header within the destination
+marshal buffer.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc *locp)
+
+
+Description
+-----------
+
+Unlike :c:func:`TSMimeHdrCopy`, you do not have to create the
+destination MIME header before cloning.  Release the returned
+:c:type:`TSMLoc` handle with a call to :c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrCopy.en.rst b/doc/reference/api/TSMimeHdrCopy.en.rst
new file mode 100644
index 00000000..f3b0c92b
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrCopy.en.rst
@@ -0,0 +1,42 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrCopy
+=============
+
+Copies the contents of the MIME header located at src_loc within
+src_bufp to the MIME header located at dest_loc within dest_bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrCopy(TSMBuffer dest_bufp, TSMLoc dest_offset, TSMBuffer src_bufp, TSMLoc src_offset)
+
+
+Description
+-----------
+
+:c:func:`TSMimeHdrCopy` works correctly even if src_bufp and dest_bufp
+point to different marshal buffers.
+
+.. important::
+
+   you must create the destination MIME header before copying into
+   it--use :c:func:`TSMimeHdrCreate`.
diff --git a/doc/reference/api/TSMimeHdrCreate.en.rst b/doc/reference/api/TSMimeHdrCreate.en.rst
new file mode 100644
index 00000000..e0719ada
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrCreate.en.rst
@@ -0,0 +1,35 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrCreate
+===============
+
+Creates a new MIME header within bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrCreate(TSMBuffer bufp, TSMLoc *locp)
+
+
+Description
+-----------
+
+Release with a call to :c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrDestroy.en.rst b/doc/reference/api/TSMimeHdrDestroy.en.rst
new file mode 100644
index 00000000..e4120187
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrDestroy.en.rst
@@ -0,0 +1,33 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrDestroy
+================
+
+Destroys the MIME header located at hdr_loc within bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrDestroy(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldAppend.en.rst b/doc/reference/api/TSMimeHdrFieldAppend.en.rst
new file mode 100644
index 00000000..74ea4fab
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldAppend.en.rst
@@ -0,0 +1,43 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldAppend
+====================
+
+Returns the :c:type:`TSMLoc` location of a specified MIME field from
+within the MIME header located at hdr.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldAppend(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
+
+The retrieved_str parameter specifies which field to retrieve.  For
+each MIME field in the MIME header, a pointer comparison is done
+between the field name and retrieved_str.  This is a much quicker
+retrieval function than :c:func:`TSMimeHdrFieldFind` since it obviates
+the need for a string comparison.  However, retrieved_str must be one
+of the predefined field names of the form :c:data:`TS_MIME_FIELD_XXX`
+for the call to succeed.  Release the returned :c:type:`TSMLoc` handle
+with a call to :c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrFieldClone.en.rst b/doc/reference/api/TSMimeHdrFieldClone.en.rst
new file mode 100644
index 00000000..dc2089df
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldClone.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldClone
+===================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldClone(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field, TSMLoc *locp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldCopy.en.rst b/doc/reference/api/TSMimeHdrFieldCopy.en.rst
new file mode 100644
index 00000000..dfc76cb2
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldCopy.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldCopy
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldCopy(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMLoc dest_field, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldCopyValues.en.rst b/doc/reference/api/TSMimeHdrFieldCopyValues.en.rst
new file mode 100644
index 00000000..b4d2245f
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldCopyValues.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldCopyValues
+========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldCopyValues(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMLoc dest_field, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldCreate.en.rst b/doc/reference/api/TSMimeHdrFieldCreate.en.rst
new file mode 100644
index 00000000..e6185ac7
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldCreate.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldCreate
+====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldCreate(TSMBuffer bufp, TSMLoc hdr, TSMLoc *locp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldDestroy.en.rst b/doc/reference/api/TSMimeHdrFieldDestroy.en.rst
new file mode 100644
index 00000000..541607b2
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldDestroy.en.rst
@@ -0,0 +1,36 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldDestroy
+=====================
+
+Destroys the MIME field located at field within bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldDestroy(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
+
+You must release the :c:type:`TSMLoc` field with a call to
+:c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrFieldFind.en.rst b/doc/reference/api/TSMimeHdrFieldFind.en.rst
new file mode 100644
index 00000000..bedf089d
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldFind.en.rst
@@ -0,0 +1,41 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldFind
+==================
+
+Retrieves the :c:type:`TSMLoc` location of a specified MIME field from
+within the MIME header located at hdr.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMLoc TSMimeHdrFieldFind(TSMBuffer bufp, TSMLoc hdr, const char *name, int length)
+
+
+Description
+-----------
+
+The name and length parameters specify which field to retrieve.  For
+each MIME field in the MIME header, a case insensitive string
+comparison is done between the field name and name.  If
+:c:func:`TSMimeHdrFieldFind` cannot find the requested field, it
+returns :c:data:`TS_NULL_MLOC`.  Release the returned :c:type:`TSMLoc`
+handle with a call to :c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrFieldGet.en.rst b/doc/reference/api/TSMimeHdrFieldGet.en.rst
new file mode 100644
index 00000000..4dcddfec
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldGet.en.rst
@@ -0,0 +1,40 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldGet
+=================
+
+Retrieves the location of a specified MIME field within the MIME
+header located at hdr_loc within bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMLoc TSMimeHdrFieldGet(TSMBuffer bufp, TSMLoc hdr, int idx)
+
+
+Description
+-----------
+
+The idx parameter specifies which field to retrieve.  The fields are
+numbered from 0 to ``TSMimeHdrFieldsCount(bufp, hdr_loc)`` - 1.  If
+idx does not lie within that range then :c:type:`TSMimeHdrFieldGet`
+returns 0.  Release the returned handle with a call to
+:c:type:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrFieldLengthGet.en.rst b/doc/reference/api/TSMimeHdrFieldLengthGet.en.rst
new file mode 100644
index 00000000..68a73b16
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldLengthGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldLengthGet
+=======================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSMimeHdrFieldLengthGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldNameGet.en.rst b/doc/reference/api/TSMimeHdrFieldNameGet.en.rst
new file mode 100644
index 00000000..6d54e172
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldNameGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldNameGet
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: const char* TSMimeHdrFieldNameGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int *length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldNameSet.en.rst b/doc/reference/api/TSMimeHdrFieldNameSet.en.rst
new file mode 100644
index 00000000..ca36e78c
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldNameSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldNameSet
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldNameSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, const char *name, int length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldNext.en.rst b/doc/reference/api/TSMimeHdrFieldNext.en.rst
new file mode 100644
index 00000000..f88fe31c
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldNext.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldNext
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMLoc TSMimeHdrFieldNext(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldNextDup.en.rst b/doc/reference/api/TSMimeHdrFieldNextDup.en.rst
new file mode 100644
index 00000000..738f7100
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldNextDup.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldNextDup
+=====================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMLoc TSMimeHdrFieldNextDup(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldRemove.en.rst b/doc/reference/api/TSMimeHdrFieldRemove.en.rst
new file mode 100644
index 00000000..38aebbad
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldRemove.en.rst
@@ -0,0 +1,46 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldRemove
+====================
+
+Removes the MIME field located at field within bufp from the header
+located at hdr within bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldRemove(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
+
+If the specified field cannot be found in the list of fields
+associated with the header then nothing is done.
+
+.. note::
+
+   removing the field does not destroy the field, it only detaches the
+   field, hiding it from the printed output.  The field can be
+   reattached with a call to :c:func:`TSMimeHdrFieldAppend`.  If you
+   do not use the detached field you should destroy it with a call to
+   :c:func:`TSMimeHdrFieldDestroy` and release the handle field with a
+   call to :c:func:`TSHandleMLocRelease`.
diff --git a/doc/reference/api/TSMimeHdrFieldValueAppend.en.rst b/doc/reference/api/TSMimeHdrFieldValueAppend.en.rst
new file mode 100644
index 00000000..543d3cb3
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueAppend.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueAppend
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueAppend(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, const char *value, int length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueDateInsert.en.rst b/doc/reference/api/TSMimeHdrFieldValueDateInsert.en.rst
new file mode 100644
index 00000000..f1f7ef46
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueDateInsert.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueDateInsert
+=============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueDateInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, time_t value)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueDateSet.en.rst b/doc/reference/api/TSMimeHdrFieldValueDateSet.en.rst
new file mode 100644
index 00000000..b4a2c09f
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueDateSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueDateSet
+==========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueDateSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, time_t value)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueIntSet.en.rst b/doc/reference/api/TSMimeHdrFieldValueIntSet.en.rst
new file mode 100644
index 00000000..869b5f3c
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueIntSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueIntSet
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueIntSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int value)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueStringGet.en.rst b/doc/reference/api/TSMimeHdrFieldValueStringGet.en.rst
new file mode 100644
index 00000000..2e4048d7
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueStringGet.en.rst
@@ -0,0 +1,113 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+============================
+TSMimeHdrFieldValueStringGet
+============================
+
+Get HTTP MIME header values.
+
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function::  const char* TSMimeHdrFieldValueStringGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int* value_len_ptr)
+.. function::  int TSMimeHdrFieldValueIntGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+.. function::  int64_t TSMimeHdrFieldValueInt64Get(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+.. function::  unsigned int TSMimeHdrFieldValueUintGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+.. function::  time_t TSMimeHdrFieldValueDateGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+===========
+
+MIME headers and fields can be components of request headers,
+response headers, or standalone headers created within a Traffic
+Server plugin. The functions here are all used to access header
+values of specific types, but it is up to the caller to know if a
+header has appropriate semantics for the API used. For all but
+:func:`TSMimeHdrFieldValueStringGet`, an appropriate data conversion
+algorithm is applied to the header field string.
+
+All the APIs take a :type:`TSMBuffer` marshal buffer argument, and
+a :type:`TSMLoc` argument indicating the location of the HTTP
+headers. The required :data:`field` argument is the locator of a
+specific header value, as returned by an accessor function such as
+:func:`TSMimeHdrFieldFind`.
+
+Within the header field, comma-separated values can be retrieved with an index
+(:data:`idx`) ranging from 0 to the maximum number of fields for this value; this
+maximum is retrieved using :func:`TSMimeHdrFieldValuesCount`. An :data:`idx` value of
+``-1`` has the semantics of retrieving the entire header value, regardless of
+how many comma-separated values there are. If a header is not comma-separated,
+an :data:`idx` of :data:`0` or :data:`-1` are the same, but the latter is
+preferred.
+
+:func:`TSMimeHdrFieldValueStringGet` returns a pointer to the header
+value, and populated :data:`value_len_ptr` with the length of the
+value in bytes. The returned header value is not NUL-terminated.
+
+Return values
+=============
+
+All functions returns the header value with a type matching the respective
+function name. Using :func:`TSMimeHdrFieldValueDateGet` on a header which
+does not have date-time semantics always returns :data:`0`.
+
+Examples
+========
+
+This examples show how to retrieve and copy a specific header.
+
+::
+
+    #include <string.h>
+    #include <ts/ts.h>
+
+    int
+    get_content_type(TSHttpTxn txnp, char* buf, size_t buf_size)
+    {
+      TSMBuffer bufp;
+      TSMLoc hdrs;
+      TSMLoc ctype_field;
+      int len = -1;
+
+      if (TS_SUCCESS == TSHttpTxnServerRespGet(txnp, &bufp, &hdrs)) {
+        ctype_field = TSMimeHdrFieldFind(bufp, hdrs, TS_MIME_FIELD_CONTENT_TYPE, TS_MIME_LEN_CONTENT_TYPE);
+
+        if (TS_NULL_MLOC != ctype_field) {
+          const char* str = TSMimeHdrFieldValueStringGet(bufp, hdrs, ctype_field, -1, &len);
+
+          if (len > buf_size)
+            len = buf_size;
+          memcpy(buf, str, len);
+          TSHandleMLocRelease(bufp, hdrs, ctype_field);
+        }
+        TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdrs);
+      }
+
+      return len;
+    }
+
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`, :manpage:`TSMBufferCreate(3ts)`, :manpage:`TSMimeHdrFieldValuesCount(3ts)`
diff --git a/doc/reference/api/TSMimeHdrFieldValueStringInsert.en.rst b/doc/reference/api/TSMimeHdrFieldValueStringInsert.en.rst
new file mode 100644
index 00000000..4527edc4
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueStringInsert.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueStringInsert
+===============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueStringInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, const char *value, int length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueStringSet.en.rst b/doc/reference/api/TSMimeHdrFieldValueStringSet.en.rst
new file mode 100644
index 00000000..35ec8cb1
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueStringSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueStringSet
+============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueStringSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, const char *value, int length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueUintInsert.en.rst b/doc/reference/api/TSMimeHdrFieldValueUintInsert.en.rst
new file mode 100644
index 00000000..6c667ba4
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueUintInsert.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueUintInsert
+=============================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueUintInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, unsigned int value)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValueUintSet.en.rst b/doc/reference/api/TSMimeHdrFieldValueUintSet.en.rst
new file mode 100644
index 00000000..923b9a6e
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValueUintSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValueUintSet
+==========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValueUintSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, unsigned int value)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValuesClear.en.rst b/doc/reference/api/TSMimeHdrFieldValuesClear.en.rst
new file mode 100644
index 00000000..5956a866
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValuesClear.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValuesClear
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldValuesClear(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldValuesCount.en.rst b/doc/reference/api/TSMimeHdrFieldValuesCount.en.rst
new file mode 100644
index 00000000..493bb733
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldValuesCount.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldValuesCount
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSMimeHdrFieldValuesCount(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldsClear.en.rst b/doc/reference/api/TSMimeHdrFieldsClear.en.rst
new file mode 100644
index 00000000..18c5aa5c
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldsClear.en.rst
@@ -0,0 +1,34 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldsClear
+====================
+
+Removes and destroys all the MIME fields within the MIME header
+located at hdr_loc within the marshal buffer bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMimeHdrFieldsClear(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrFieldsCount.en.rst b/doc/reference/api/TSMimeHdrFieldsCount.en.rst
new file mode 100644
index 00000000..0f20ce0e
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrFieldsCount.en.rst
@@ -0,0 +1,34 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrFieldsCount
+====================
+
+Returns a count of the number of MIME fields within the MIME header
+located at hdr_loc within the marshal buffer bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSMimeHdrFieldsCount(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeHdrLengthGet.en.rst b/doc/reference/api/TSMimeHdrLengthGet.en.rst
new file mode 100644
index 00000000..22223d5a
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrLengthGet.en.rst
@@ -0,0 +1,36 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrLengthGet
+==================
+
+Calculates the length of the MIME header located at hdr_loc if it were
+returned as a string.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSMimeHdrLengthGet(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
+
+This the length of the MIME header in its unparsed form.
diff --git a/doc/reference/api/TSMimeHdrParse.en.rst b/doc/reference/api/TSMimeHdrParse.en.rst
new file mode 100644
index 00000000..ad6a046c
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrParse.en.rst
@@ -0,0 +1,39 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrParse
+==============
+
+Parses a MIME header.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSParseResult TSMimeHdrParse(TSMimeParser parser, TSMBuffer bufp, TSMLoc offset, const char **start, const char *end)
+
+
+Description
+-----------
+
+The MIME header must have already been allocated and both bufp and
+hdr_loc must point within that header.  It is possible to parse a MIME
+header a single byte at a time using repeated calls to
+:c:func:`TSMimeHdrParse`.  As long as an error does not occur,
+:c:func:`TSMimeHdrParse` consumes each single byte and asks for more.
diff --git a/doc/reference/api/TSMimeHdrPrint.en.rst b/doc/reference/api/TSMimeHdrPrint.en.rst
new file mode 100644
index 00000000..50916d36
--- /dev/null
+++ b/doc/reference/api/TSMimeHdrPrint.en.rst
@@ -0,0 +1,34 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeHdrPrint
+==============
+
+Formats the MIME header located at hdr_loc within bufp into the
+:c:type:`TSIOBuffer` iobufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSMimeHdrPrint(TSMBuffer bufp, TSMLoc offset, TSIOBuffer iobufp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeParserClear.en.rst b/doc/reference/api/TSMimeParserClear.en.rst
new file mode 100644
index 00000000..3dc00fa1
--- /dev/null
+++ b/doc/reference/api/TSMimeParserClear.en.rst
@@ -0,0 +1,33 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeParserClear
+=================
+
+Clears the specified MIME parser so that it can be used again.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSMimeParserClear(TSMimeParser parser)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMimeParserCreate.en.rst b/doc/reference/api/TSMimeParserCreate.en.rst
new file mode 100644
index 00000000..81566989
--- /dev/null
+++ b/doc/reference/api/TSMimeParserCreate.en.rst
@@ -0,0 +1,38 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeParserCreate
+==================
+
+Creates a MIME parser.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMimeParser TSMimeParserCreate(void)
+
+
+Description
+-----------
+
+The parser's data structure contains information about the header
+being parsed.  A single MIME parser can be used multiple times, though
+not simultaneously.  Before being used again, the parser must be
+cleared by calling :c:func:`TSMimeParserClear`.
diff --git a/doc/reference/api/TSMimeParserDestroy.en.rst b/doc/reference/api/TSMimeParserDestroy.en.rst
new file mode 100644
index 00000000..7bcbd34a
--- /dev/null
+++ b/doc/reference/api/TSMimeParserDestroy.en.rst
@@ -0,0 +1,33 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMimeParserDestroy
+===================
+
+Destroys the specified MIME parser and frees the associated memory.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSMimeParserDestroy(TSMimeParser parser)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMutexCreate.en.rst b/doc/reference/api/TSMutexCreate.en.rst
new file mode 100644
index 00000000..2274bf46
--- /dev/null
+++ b/doc/reference/api/TSMutexCreate.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMutexCreate
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMutex TSMutexCreate(void)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMutexLock.en.rst b/doc/reference/api/TSMutexLock.en.rst
new file mode 100644
index 00000000..8ff4d042
--- /dev/null
+++ b/doc/reference/api/TSMutexLock.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMutexLock
+===========
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSMutexLock(TSMutex mutexp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMutexLockTry.en.rst b/doc/reference/api/TSMutexLockTry.en.rst
new file mode 100644
index 00000000..1a3d8def
--- /dev/null
+++ b/doc/reference/api/TSMutexLockTry.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMutexLockTry
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSMutexLockTry(TSMutex mutexp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSMutexUnlock.en.rst b/doc/reference/api/TSMutexUnlock.en.rst
new file mode 100644
index 00000000..fe131fc6
--- /dev/null
+++ b/doc/reference/api/TSMutexUnlock.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSMutexUnlock
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSMutexUnlock(TSMutex mutexp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSNetAccept.en.rst b/doc/reference/api/TSNetAccept.en.rst
new file mode 100644
index 00000000..19467e86
--- /dev/null
+++ b/doc/reference/api/TSNetAccept.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSNetAccept
+===========
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSNetAccept(TSCont contp, int port, int domain, int accept_threads)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSNetAcceptNamedProtocol.en.rst b/doc/reference/api/TSNetAcceptNamedProtocol.en.rst
new file mode 100644
index 00000000..b2ccd14a
--- /dev/null
+++ b/doc/reference/api/TSNetAcceptNamedProtocol.en.rst
@@ -0,0 +1,54 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSNetAcceptNamedProtocol
+========================
+
+Listen on all SSL ports for connections for the specified protocol
+name.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSNetAcceptNamedProtocol(TSCont contp, const char *protocol)
+
+
+Description
+-----------
+
+:c:type:`TSNetAcceptNamedProtocol` registers the specified protocol
+for all statically configured TLS ports.  When a client using the TLS
+Next Protocol Negotiation extension negotiates the requested protocol,
+:c:type:`TrafficServer` will route the request to the given handler.
+Note that the protocol is not registered on ports opened by other
+plugins.
+
+The event and data provided to the handler are the same as for
+:c:func:`TSNetAccept`.  If a connection is successfully accepted, the
+event code will be :c:data:`TS_EVENT_NET_ACCEPT` and the event data
+will be a valid :c:type:`TSVConn` bound to the accepted connection.
+
+Neither contp nor protocol are copied.  They must remain valid for the
+lifetime of the plugin.
+
+:c:type:`TSNetAcceptNamedProtocol` fails if the requested protocol
+cannot be registered on all of the configured TLS ports.  If it fails,
+the protocol will not be registered on any ports
+(ie..  no partial failure).
diff --git a/doc/reference/api/TSNetConnect.en.rst b/doc/reference/api/TSNetConnect.en.rst
new file mode 100644
index 00000000..44784878
--- /dev/null
+++ b/doc/reference/api/TSNetConnect.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSNetConnect
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSAction TSNetConnect(TSCont contp, sockaddr const *addr)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSPluginInit.en.rst b/doc/reference/api/TSPluginInit.en.rst
new file mode 100644
index 00000000..d4637c11
--- /dev/null
+++ b/doc/reference/api/TSPluginInit.en.rst
@@ -0,0 +1,77 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+============
+TSPluginInit
+============
+
+Traffic Server plugin loading and registration.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: void TSPluginInit(int argc, const char* argv[])
+.. function:: TSReturnCode TSPluginRegister(TSSDKVersion sdk_version, TSPluginRegistrationInfo* plugin_info)
+
+Description
+===========
+
+:func:`TSPluginInit` must be defined by all plugins. Traffic Server
+calls this initialization routine when it loads the plugin and sets
+argc and argv appropriately based on the values in plugin.config.
+argc is a count of the number of arguments in the argument vector,
+argv. The count is at least one because the first argument in the
+argument vector is the plugins name, which must exist in order for
+the plugin to be loaded. argv is the vector of arguments. The number
+of arguments in the vector is argc, and argv[0] always contains the
+name of the plugin shared library.  :func:`TSPluginRegister` registers
+the appropriate SDK version for your plugin.  Use this function to
+make sure that the version of Traffic Server on which your plugin
+is running supports the plugin.
+
+Return values
+=============
+
+:func:`TSPluginRegister` returns :const:`TS_ERROR` if the plugin registration failed.
+
+Examples
+========
+
+::
+
+    #include <ts/ts.h>
+
+    void
+    TSPluginInit (int argc, const char *argv[])
+    {
+        TSPluginRegistrationInfo info;
+        info.plugin_name = "hello-world";
+        info.vendor_name = "MyCompany";
+        info.support_email = "ts-api-support@MyCompany.com";
+
+        if (TSPluginRegister(TS_SDK_VERSION_3_0 , &info) != TS_SUCCESS) {
+            TSError("Plugin registration failed. 0);
+        }
+    }
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`, :manpage:`TSInstallDirGet(3ts)`
diff --git a/doc/reference/api/TSRemap.en.rst b/doc/reference/api/TSRemap.en.rst
new file mode 100644
index 00000000..7542cacc
--- /dev/null
+++ b/doc/reference/api/TSRemap.en.rst
@@ -0,0 +1,87 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+       http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+===========
+TSRemapInit
+===========
+
+Traffic Server remap plugin entry points.
+
+Synopsis
+========
+
+| `#include <ts/ts.h>`
+| `#include <ts/remap.h>`
+
+.. function:: TSReturnCode TSRemapInit(TSRemapInterface * api_info, char* errbuf, int errbuf_size)
+.. function:: void TSRemapDone(void)
+.. function:: TSRemapStatus TSRemapDoRemap(void * ih, TSHttpTxn rh, TSRemapRequestInfo * rri)
+.. function:: TSReturnCode TSRemapNewInstance(int argc, char * argv[], void ** ih, char * errbuf, int errbuf_size)
+.. function:: void TSRemapDeleteInstance(void * )
+.. function:: void TSRemapOSResponse(void * ih, TSHttpTxn rh, int os_response_type)
+
+Description
+===========
+
+The Traffic Server remap interface provides a simplified mechanism for
+plugins to manipulate HTTP transactions. A remap plugin is not global; it
+is configured on a per-remap rule basis, which enables you to customize
+how URLs are redirected based on individual rules in the remap.config
+file. Writing a remap plugin consists of implementing one or more of the
+remap entry points and configuring the remap.config configuration file to
+route the transaction through your plugin. Multiple remap plugins can be
+specified for a single remap rule, resulting in a remap plugin chain
+where each plugin is given an opportunity to examine the HTTP transaction.
+
+:func:`TSRemapInit` is a required entry point. This function will be called
+once when Traffic Server loads the plugin. If the optional :func:`TSRemapDone`
+entry point is available, Traffic Server will call then when unloading
+the remap plugin.
+
+A remap plugin may be invoked for different remap rules. Traffic Server
+will call the entry point each time a plugin is specified in a remap
+rule. When a remap plugin instance is no longer required, Traffic Server
+will call :func:`TSRemapDeleteInstance`.
+
+:func:`TSRemapDoRemap` is called for each HTTP transaction. This is a mandatory
+entry point. In this function, the remap plugin may examine and modify
+the HTTP transaction.
+
+Return values
+=============
+
+:func:`TSRemapInit` and :func:`TSRemapNewInstance` should return
+:data:`TS_SUCCESS` on success, and :data:`TS_ERROR` otherwise. A
+return value of :data:`TS_ERROR` is unrecoverable.
+
+:func:`TSRemapDoRemap` returns a status code that indicates whether
+the HTTP transaction has been modified and whether Traffic Server
+should continue to evaluate the chain of remap plugins. If the
+transaction was modified, the plugin should return
+:data:`TSREMAP_DID_REMAP` or :data:`TSREMAP_DID_REMAP_STOP`; otherwise
+it should return :data:`TSREMAP_NO_REMAP` or :data:`TSREMAP_NO_REMAP_STOP`.
+If Traffic Server should not send the transaction to subsequent
+plugins in the remap chain, return :data:`TSREMAP_NO_REMAP_STOP`
+or :data:`TSREMAP_DID_REMAP_STOP`.  Returning :data:`TSREMAP_ERROR`
+causes Traffic Server to stop evaluating the remap chain and respond
+with an error.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSTextLogObjectCreate.en.rst b/doc/reference/api/TSTextLogObjectCreate.en.rst
new file mode 100644
index 00000000..8a4684b3
--- /dev/null
+++ b/doc/reference/api/TSTextLogObjectCreate.en.rst
@@ -0,0 +1,54 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License") you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+=====================
+TSTextLogObjectCreate
+=====================
+
+Traffic Server text logging API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSReturnCode TSTextLogObjectCreate(const char* filename, int mode, TSTextLogObject * new_log_obj)
+.. function:: TSReturnCode TSTextLogObjectWrite(TSTextLogObject the_object, const char * format, ...)
+.. function:: void TSTextLogObjectFlush(TSTextLogObject the_object)
+.. function:: TSReturnCode TSTextLogObjectDestroy(TSTextLogObject the_object)
+.. function:: void TSTextLogObjectHeaderSet(TSTextLogObject the_object, const char * header)
+.. function:: TSReturnCode TSTextLogObjectRollingEnabledSet(TSTextLogObject the_object, int rolling_enabled)
+.. function:: void TSTextLogObjectRollingIntervalSecSet(TSTextLogObject the_object, int rolling_interval_sec)
+.. function:: void TSTextLogObjectRollingOffsetHrSet(TSTextLogObject the_object, int rolling_offset_hr)
+
+Description
+===========
+
+:func:`TSTextLogObjectRollingEnabledSet` sets the log rolling mode
+for the given object. This API must be used once the object is
+created and before writing into logs. The :arg:`rolling_enabled`
+argument must be a valid :ts:cv:`proxy.config.log.rolling_enabled`
+values. If :func:`TSTextLogObjectRollingEnabledSet` is never called,
+the log object takes it's log rolling mode from the global
+:ts:cv:`proxy.config.log.rolling_enabled` setting.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSThreadCreate.en.rst b/doc/reference/api/TSThreadCreate.en.rst
new file mode 100644
index 00000000..35cd9086
--- /dev/null
+++ b/doc/reference/api/TSThreadCreate.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSThreadCreate
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSThread TSThreadCreate(TSThreadFunc func, void *data)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSThreadDestroy.en.rst b/doc/reference/api/TSThreadDestroy.en.rst
new file mode 100644
index 00000000..a80abe0d
--- /dev/null
+++ b/doc/reference/api/TSThreadDestroy.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSThreadDestroy
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSThreadDestroy(TSThread thread)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSThreadInit.en.rst b/doc/reference/api/TSThreadInit.en.rst
new file mode 100644
index 00000000..08da73fd
--- /dev/null
+++ b/doc/reference/api/TSThreadInit.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSThreadInit
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSThread TSThreadInit(void)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSThreadSelf.en.rst b/doc/reference/api/TSThreadSelf.en.rst
new file mode 100644
index 00000000..efeed831
--- /dev/null
+++ b/doc/reference/api/TSThreadSelf.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSThreadSelf
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSThread TSThreadSelf(void)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSTrafficServerVersionGet.en.rst b/doc/reference/api/TSTrafficServerVersionGet.en.rst
new file mode 100644
index 00000000..9f7681fa
--- /dev/null
+++ b/doc/reference/api/TSTrafficServerVersionGet.en.rst
@@ -0,0 +1,100 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+       http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+=========================
+TSTrafficServerVersionGet
+=========================
+
+Return Traffic Server version information.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: const char * TSTrafficServerVersionGet(void)
+.. function:: int TSTrafficServerVersionGetMajor(void)
+.. function:: int TSTrafficServerVersionGetMinor(void)
+.. function:: int TSTrafficServerVersionGetPatch(void)
+
+Description
+===========
+
+:func:`TSTrafficServerVersionGet` returns a pointer to a string of characters
+that indicates the Traffic Server release version. This string must not
+be modified.
+
+The other APIs return an integer version number.
+
+Example
+=======
+
+::
+
+    #include <stdio.h>
+    #include <ts/ts.h>
+
+    int
+    check_ts_version()
+    {
+        const char *ts_version = TSTrafficServerVersionGet();
+        int result = 0;
+
+        if (ts_version) {
+            int major_ts_version = 0;
+            int minor_ts_version = 0;
+            int patch_ts_version = 0;
+
+            if (sscanf(ts_version, "%d.%d.%d", &major_ts_version,
+                    &minor_ts_version, &patch_ts_version) != 3) {
+                return 0;
+            }
+
+            /* We need at least Traffic Server 3.0 */
+            if (major_ts_version >= 3) {
+                result = 1;
+            }
+        }
+
+        return result;
+    }
+
+    void
+    TSPluginInit (int argc, const char *argv[])
+    {
+        TSPluginRegistrationInfo info;
+        info.plugin_name = "hello-world";
+        info.vendor_name = "MyCompany";
+        info.support_email = "ts-api-support@MyCompany.com";
+
+        if (TSPluginRegister(TS_SDK_VERSION_3_0 , &info) != TS_SUCCESS) {
+            TSError("Plugin registration failed. 0);
+        }
+
+        if (!check_ts_version()) {
+            TSError("Plugin requires Traffic Server 3.0 or later0);
+            return;
+        }
+
+        TSDebug("debug-hello", "Hello World!0);
+    }
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSTransformCreate.en.rst b/doc/reference/api/TSTransformCreate.en.rst
new file mode 100644
index 00000000..3950eb4f
--- /dev/null
+++ b/doc/reference/api/TSTransformCreate.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSTransformCreate
+=================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVConn TSTransformCreate(TSEventFunc event_funcp, TSHttpTxn txnp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSTransformOutputVConnGet.en.rst b/doc/reference/api/TSTransformOutputVConnGet.en.rst
new file mode 100644
index 00000000..8ff170a0
--- /dev/null
+++ b/doc/reference/api/TSTransformOutputVConnGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSTransformOutputVConnGet
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVConn TSTransformOutputVConnGet(TSVConn connp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSTypes.en.rst b/doc/reference/api/TSTypes.en.rst
new file mode 100644
index 00000000..a3f5a14d
--- /dev/null
+++ b/doc/reference/api/TSTypes.en.rst
@@ -0,0 +1,139 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+.. default-domain:: c
+
+===========
+TSAPI Types
+===========
+
+Synopsis
+========
+| `#include <ts/ts.h>`
+| `#include <ts/remap.h>`
+
+Description
+===========
+
+The Apache Traffic Server API provides large number of types. Many of them are specific to a particular API function or
+function group, but others are used more widely. Those are described on this page.
+
+.. type:: TSCont
+
+   An opaque type that represents a Traffic Server :term:`continuation`.
+
+.. type:: TSEvent
+
+   :type:`TSEvents` are sent to continuations when they are called
+   back.
+
+   The :type:`TSEvent` provides the continuation's handler function
+   with information about the callback.  Based on the event it
+   receives, the handler function can decide what to do.
+
+.. type:: TSEventFunc
+
+.. type:: TSHostLookupResult
+
+.. type:: TSHRTime
+
+   "High Resolution Time"
+
+   A 64 bit time value, measured in nanoseconds.
+
+.. type:: TSHttpHookID
+
+   An enumeration that identifies a specific type of hook for HTTP transactions.
+
+.. type:: TSHttpParser
+
+.. type:: TSHttpSsn
+
+   An opaque type that represents a Traffic Server :term:`session`.
+
+.. type:: TSHttpTxn
+
+   An opaque type that represents a Traffic Server HTTP :term:`transaction`.
+
+.. type:: TSIOBuffer
+
+.. type:: TSIOBufferReader
+
+.. type:: TSIOBufferSizeIndex
+
+.. type:: TSLifecycleHookID
+
+   An enumeration that identifies a :ref:`life cycle hook <ts-lifecycle-hook-add>`.
+
+.. type:: TSMBuffer
+
+.. type:: TSMgmtFloat
+
+   The type used internally for a floating point value. This corresponds to the value :const:`TS_RECORDDATATYPE_FLOAT` for
+   :type:`TSRecordDataType`.
+
+.. type:: TSMgmtInt
+
+   The type used internally for an integer. This corresponds to the value :const:`TS_RECORDDATATYPE_INT` for
+   :type:`TSRecordDataType`.
+
+.. type:: TSMLoc
+
+.. type:: TSMutex
+
+.. type:: TSParseResult
+
+   This set of enums are possible values returned by
+   :func:`TSHttpHdrParseReq` and :func:`TSHttpHdrParseResp`.
+
+.. type:: TSPluginRegistrationInfo
+
+   The following struct is used by :func:`TSPluginRegister`.
+
+   It stores registration information about the plugin.
+
+.. type:: TSRecordDataType
+
+   An enumeration that specifies the type of a value in an internal data structure that is accessible via the API.
+
+.. type:: TSRemapInterface
+
+.. type:: TSRemapRequestInfo
+
+.. type:: TSRemapStatus
+
+.. type:: TSReturnCode
+
+   An indicator of the results of an API call. A value of :const:`TS_SUCCESS` means the call was successful. Any other value
+   indicates a failure and is specific to the API call.
+
+.. type:: TSSDKVersion
+
+   Starting 2.0, SDK now follows same versioning as Traffic Server.
+
+.. type:: TSServerState
+
+.. type:: TSTextLogObject
+
+   This type represents a custom log file that you create with
+   :func:`TSTextLogObjectCreate`.
+
+   Your plugin writes entries into this log file using
+   :func:`TSTextLogObjectWrite`.
+
+.. type:: TSVConn
+
+.. type:: TSVIO
diff --git a/doc/reference/api/TSUrlCreate.en.rst b/doc/reference/api/TSUrlCreate.en.rst
new file mode 100644
index 00000000..ad15af07
--- /dev/null
+++ b/doc/reference/api/TSUrlCreate.en.rst
@@ -0,0 +1,87 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+===========
+TSUrlCreate
+===========
+
+Traffic Server URL object construction API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSReturnCode TSUrlCreate(TSMBuffer bufp, TSMLoc* locp)
+.. function:: TSReturnCode TSUrlClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_url, TSMLoc* locp)
+.. function:: TSReturnCode TSUrlCopy(TSMBuffer dest_bufp, TSMLoc dest_url, TSMBuffer src_bufp, TSMLoc src_url)
+.. function:: TSParseResult TSUrlParse(TSMBuffer bufp, TSMLoc offset, const char ** start, const char* end)
+
+Description
+===========
+
+The URL data structure is a parsed version of a standard internet URL. The
+Traffic Server URL API provides access to URL data stored in marshal
+buffers. The URL functions can create, copy, retrieve or delete entire URLs,
+and retrieve or modify parts of URLs, such as their host, port or scheme
+information.
+
+:func:`TSUrlCreate` creates a new URL within the marshal buffer
+:data:`bufp`. Release the resulting handle with a call to
+:func:`TSHandleMLocRelease`.
+
+:func:`TSUrlClone` copies the contents of the URL at location :data:`src_url`
+within the marshal buffer :data:`src_bufp` to a location within the marshal
+buffer :data:`dest_bufp`. Release the returned handle with a call to
+:func:`TSHandleMLocRelease`. 
+
+:func:`TSUrlCopy` copies the contents of the URL at location :data:`src_url`
+within the marshal buffer :data:`src_bufp` to the location :data:`dest_url`
+within the marshal buffer dest_bufp. :func:`TSUrlCopy` works correctly even if
+:data:`src_bufp` and :data:`dest_bufp` point to different marshal buffers. It
+is important for the destination URL (its marshal buffer and :type:`TSMLoc`)
+to have been created before copying into it.
+
+:func:`TSUrlParse` parses a URL. The :data:`start` pointer is both an input
+and an output parameter and marks the start of the URL to be parsed. After a
+successful parse, the :data:`start` pointer equals the :data:`end`
+pointer. The :data:`end` pointer must be one byte after the last character you
+want to parse. The URL parsing routine assumes that everything between
+:data:`start` and :data:`end` is part of the URL. It is up to higher level
+parsing routines, such as :func:`TSHttpHdrParseReq`, to determine the actual
+end of the URL.
+
+Return values
+=============
+
+The :func:`TSUrlParse` function returns a :type:`TSParseResult`, where
+:data:`TS_PARSE_ERROR` indicates an error. Success is indicated by one of
+:data:`TS_PARSE_DONE`, :data:`TS_PARSE_OK` or :data:`TS_PARSE_CONT`. The other
+APIs all return a :type:`TSReturnCode`, indicating success
+(:data:`TS_SUCCESS`) or failure (:data:`TS_ERROR`) of the operation.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`,
+:manpage:`TSMBufferCreate(3ts)`,
+:manpage:`TSUrlHostGet(3ts)`,
+:manpage:`TSUrlHostSet(3ts)`,
+:manpage:`TSUrlStringGet(3ts)`,
+:manpage:`TSUrlPercentEncode(3ts)`
diff --git a/doc/reference/api/TSUrlDestroy.en.rst b/doc/reference/api/TSUrlDestroy.en.rst
new file mode 100644
index 00000000..68cebbcc
--- /dev/null
+++ b/doc/reference/api/TSUrlDestroy.en.rst
@@ -0,0 +1,43 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSUrlDestroy
+============
+
+Destroys the URL located at url_loc within the marshal buffer bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSUrlDestroy(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
+
+Do not forget to release the :c:type:`TSMLoc` url_loc with a call to
+:c:func:`TSHandleMLocRelease`.
+
+.. admonition:: Deprecated
+
+   There is no reason to destroy the URL, just release the marshal
+   buffers.
+
+Should be removed for v5.0.0
diff --git a/doc/reference/api/TSUrlFtpTypeGet.en.rst b/doc/reference/api/TSUrlFtpTypeGet.en.rst
new file mode 100644
index 00000000..f95355ad
--- /dev/null
+++ b/doc/reference/api/TSUrlFtpTypeGet.en.rst
@@ -0,0 +1,33 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSUrlFtpTypeGet
+===============
+
+Retrieves the FTP type of the URL located at url_loc within bufp.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSUrlFtpTypeGet(TSMBuffer bufp, TSMLoc offset)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSUrlFtpTypeSet.en.rst b/doc/reference/api/TSUrlFtpTypeSet.en.rst
new file mode 100644
index 00000000..8880bf7f
--- /dev/null
+++ b/doc/reference/api/TSUrlFtpTypeSet.en.rst
@@ -0,0 +1,34 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSUrlFtpTypeSet
+===============
+
+Sets the FTP type portion of the URL located at url_loc within bufp to
+the value type.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSReturnCode TSUrlFtpTypeSet(TSMBuffer bufp, TSMLoc offset, int type)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSUrlHostGet.en.rst b/doc/reference/api/TSUrlHostGet.en.rst
new file mode 100644
index 00000000..fbaa7bf8
--- /dev/null
+++ b/doc/reference/api/TSUrlHostGet.en.rst
@@ -0,0 +1,81 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+============
+TSUrlHostGet
+============
+
+Traffic Server URL component retrieval API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: const char* TSUrlHostGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: const char* TSUrlSchemeGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: const char* TSUrlUserGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: const char* TSUrlPasswordGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: int TSUrlPortGet(TSMBuffer bufp, TSMLoc offset)
+.. function:: const char* TSUrlPathGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: const char* TSUrlHttpQueryGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: const char* TSUrlHttpParamsGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: const char* TSUrlHttpFragmentGet(TSMBuffer bufp, TSMLoc offset, int* length)
+
+Description
+===========
+
+The URL data structure is a parsed version of a standard internet URL. The
+Traffic Server URL API provides access to URL data stored in marshal
+buffers. The URL functions can create, copy, retrieve or delete entire URLs,
+and retrieve or modify parts of URLs, such as their host, port or scheme
+information.
+
+:func:`TSUrlSchemeGet`, :func:`TSUrlUserGet`, :func:`TSUrlPasswordGet`,
+:func:`TSUrlHostGet`, :func:`TSUrlHttpParamsGet`, :func:`TSUrlHttpQueryGet`
+and :func:`TSUrlHttpFragmentGet` each retrieve an internal pointer to the
+specified portion of the URL from the marshall buffer :data:`bufp`. The length
+of the returned string is placed in :data:`length` and a pointer to the URL
+portion is returned.
+
+:func:`TSUrlPortGet` retrieves the port number portion of the URL located at
+:data:`offset` within the marshal buffer :data:`bufp`. If there is no explicit
+port number in the URL, a canonicalized valued is returned based on the URL
+scheme.
+
+Return values
+=============
+
+All APIs except :func:`TSUrlPortGet` returns a string, which is not guaranteed
+to be NULL terminated. You must therefore always use the :data:`length` value
+to determine the actual length of the returned string.
+
+:func:`TSUrlPortGet` simply returns the port number as an integer, possibly
+canonicalized with :data:`80` for HTTP and :data:`443` for HTTPS schemes. If
+there is neither port nor scheme information available in the URL, :data:`0`
+is returned.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`,
+:manpage:`TSUrlCreate(3ts)`,
+:manpage:`TSUrlHostSet(3ts)`,
+:manpage:`TSUrlStringGet(3ts)`,
+:manpage:`TSUrlPercentEncode(3ts)`
diff --git a/doc/reference/api/TSUrlHostSet.en.rst b/doc/reference/api/TSUrlHostSet.en.rst
new file mode 100644
index 00000000..8935ed92
--- /dev/null
+++ b/doc/reference/api/TSUrlHostSet.en.rst
@@ -0,0 +1,76 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+============
+TSUrlHostSet
+============
+
+Traffic Server URL component manipulation API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSReturnCode TSUrlHostSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlSchemeSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlUserSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlPasswordSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlPortSet(TSMBuffer bufp, TSMLoc offset, int port)
+.. function:: TSReturnCode TSUrlPathSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlHttpQuerySet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlHttpParamsSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+.. function:: TSReturnCode TSUrlHttpFragmentSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length)
+
+Description
+===========
+
+The URL data structure is a parsed version of a standard internet URL. The
+Traffic Server URL API provides access to URL data stored in marshal
+buffers. The URL functions can create, copy, retrieve or delete entire URLs,
+and retrieve or modify parts of URLs, such as their host, port or scheme
+information.
+
+:func:`TSUrlSchemeSet`, :func:`TSUrlUserSet`, :func:`TSUrlPasswordSet`,
+:func:`TSUrlHostSet`, :func:`TSUrlHttpParamsSet`, :func:`TSUrlHttpQuerySet`
+and :func:`TSUrlHttpFragmentSet` each set the specified portion of the URL
+located at offset within the marshal buffer :data:`bufp` to the string
+value. If :data:`length` is :data:`-1` then these functions assume that value
+is NULL-terminated. Otherwise, the length of the :data:`string` value is taken
+to be the value of :data:`length`. These functions copy the string to within
+:data:`bufp`, so it can be subsequently modified or deleted.
+
+:func:`TSUrlPortSet` sets the port number portion of the URL located at
+:data:`offset` within the marshal buffer :data:`bufp` to the value
+port. Normal canonicalization based on the URL scheme still applies.
+
+Return values
+=============
+
+All these APIs returns a :type:`TSReturnCode`, indicating success
+(:data:`TS_SUCCESS`) or failure (:data:`TS_ERROR`) of the operation.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`,
+:manpage:`TSUrlCreate(3ts)`,
+:manpage:`TSUrlHostGet(3ts)`,
+:manpage:`TSUrlStringGet(3ts)`,
+:manpage:`TSUrlPercentEncode(3ts)`
diff --git a/doc/reference/api/TSUrlPercentEncode.en.rst b/doc/reference/api/TSUrlPercentEncode.en.rst
new file mode 100644
index 00000000..5a759309
--- /dev/null
+++ b/doc/reference/api/TSUrlPercentEncode.en.rst
@@ -0,0 +1,69 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+==================
+TSUrlPercentEncode
+==================
+
+Traffic Server URL percent encoding API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: TSReturnCode TSUrlPercentEncode(TSMBuffer bufp, TSMLoc offset, char* dst, size_t dst_size, size_t* length, const unsigned char* map)
+.. function:: TSReturnCode TSStringPercentEncode(const char* str, int str_len, char* dst, size_t dst_size, size_t* length, const unsigned char* map)
+.. function:: TSReturnCode TSStringPercentDecode(const char* str, size_t str_len, char* dst, size_t dst_size, size_t* length)
+
+Description
+===========
+
+The URL data structure is a parsed version of a standard internet URL. The
+Traffic Server URL API provides access to URL data stored in marshal
+buffers. The URL functions can create, copy, retrieve or delete entire URLs,
+and retrieve or modify parts of URLs, such as their host, port or scheme
+information.
+
+:func:`TSUrlPercentEncode` performs percent-encoding of the URL object,
+storing the new string in the :data:`dst` buffer. The :data:`length` parameter
+will be set to the new (encoded) string length, or :data:`0` if the encoding
+failed.  :func:`TSStringPercentEncode` is similar but operates on a string. If
+the optional :data:`map` parameter is provided (not :data:`NULL`) , it should
+be a map of characters to encode.
+
+:func:`TSStringPercentDecode` perform percent-decoding of the string in the
+:data:`str` buffer, writing to the :data:`dst` buffer. The source and
+destination can be the same, in which case they overwrite. The decoded string
+is always guaranteed to be no longer than the source string.
+
+Return values
+=============
+
+All these APIs returns a :type:`TSReturnCode`, indicating success
+(:data:`TS_SUCCESS`) or failure (:data:`TS_ERROR`) of the operation.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`,
+:manpage:`TSUrlCreate(3ts)`,
+:manpage:`TSUrlHostGet(3ts)`,
+:manpage:`TSUrlHostSet(3ts)`,
+:manpage:`TSUrlStringGet(3ts)`
diff --git a/doc/reference/api/TSUrlStringGet.en.rst b/doc/reference/api/TSUrlStringGet.en.rst
new file mode 100644
index 00000000..8c15bacf
--- /dev/null
+++ b/doc/reference/api/TSUrlStringGet.en.rst
@@ -0,0 +1,69 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+==============
+TSUrlStringGet
+==============
+
+Traffic Server URL string representations API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: char* TSUrlStringGet(TSMBuffer bufp, TSMLoc offset, int* length)
+.. function:: int TSUrlLengthGet(TSMBuffer bufp, TSMLoc offset)
+.. function:: void TSUrlPrint(TSMBuffer bufp, TSMLoc offset, TSIOBuffer iobufp)
+
+
+Description
+===========
+
+The URL data structure is a parsed version of a standard internet URL. The
+Traffic Server URL API provides access to URL data stored in marshal
+buffers. The URL functions can create, copy, retrieve or delete entire URLs,
+and retrieve or modify parts of URLs, such as their host, port or scheme
+information.
+
+:func:`TSUrlStringGet` constructs a string representation of the URL located
+at :data:`offset` within the marshal buffer :data:`bufp`.
+:func:`TSUrlStringGet` stores the length of the allocated string in the
+parameter :data:`length`. This is the same length that :func:`TSUrlLengthGet`
+returns. The returned string is allocated by a call to :func:`TSmalloc` and
+must be freed by a call to :func:`TSfree`. If length is :data:`NULL` then no
+attempt is made to de-reference it.
+
+:func:`TSUrlLengthGet` calculates the length of the URL located at
+:data:`offset` within the marshal buffer bufp as if it were returned as a
+string. This length will be the same as the length returned by
+:func:`TSUrlStringGet`.
+
+:func:`TSUrlPrint` formats a URL stored in an :type:`TSMBuffer` to an
+:type:`TSIOBuffer`.
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`,
+:manpage:`TSmalloc(3ts)`,
+:manpage:`TSUrlCreate(3ts)`,
+:manpage:`TSUrlHostGet(3ts)`,
+:manpage:`TSUrlHostSet(3ts)`,
+:manpage:`TSUrlPercentEncode(3ts)`
diff --git a/doc/reference/api/TSVConnAbort.en.rst b/doc/reference/api/TSVConnAbort.en.rst
new file mode 100644
index 00000000..8eebdbfd
--- /dev/null
+++ b/doc/reference/api/TSVConnAbort.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnAbort
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSVConnAbort(TSVConn connp, int error)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnCacheObjectSizeGet.en.rst b/doc/reference/api/TSVConnCacheObjectSizeGet.en.rst
new file mode 100644
index 00000000..8c299743
--- /dev/null
+++ b/doc/reference/api/TSVConnCacheObjectSizeGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnCacheObjectSizeGet
+=========================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int64_t TSVConnCacheObjectSizeGet(TSVConn connp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnClose.en.rst b/doc/reference/api/TSVConnClose.en.rst
new file mode 100644
index 00000000..8b2baaaf
--- /dev/null
+++ b/doc/reference/api/TSVConnClose.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnClose
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSVConnClose(TSVConn connp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnClosedGet.en.rst b/doc/reference/api/TSVConnClosedGet.en.rst
new file mode 100644
index 00000000..0c144790
--- /dev/null
+++ b/doc/reference/api/TSVConnClosedGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnClosedGet
+================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int TSVConnClosedGet(TSVConn connp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnFdCreate.en.rst b/doc/reference/api/TSVConnFdCreate.en.rst
new file mode 100644
index 00000000..dde09613
--- /dev/null
+++ b/doc/reference/api/TSVConnFdCreate.en.rst
@@ -0,0 +1,63 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+.. default-domain:: c
+
+TSVConnFdCreate
+===============
+
+Create a TSVConn from a socket.
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVConn TSVConnFdCreate(int fd)
+
+Description
+-----------
+
+:func:`TSVConnFdCreate` accepts a network socket and returns a new
+:type:`TSVConn` constructed from the socket. The socket descriptor
+must be an already connected socket. It will be placed into
+non-blocking mode.
+
+Return Values
+-------------
+
+On success, the returned TSVConn object owns the socket and the
+caller must not close it.  If :func:`TSVConnFdCreate` fails, :data:`NULL`
+is returned, the socket is unchanged and the caller must close
+it.
+
+Examples
+--------
+
+The example below is excerpted from `example/intercept/intercept.cc`
+in the Traffic Server source distribution. It demonstrates how to
+use :func:`TSVConnFdCreate` to construct a :type:`TSVConn` from a
+connected socket.
+
+.. literalinclude:: ../../../example/intercept/intercept.cc
+  :language: c
+  :lines: 288-336
+
+See also
+--------
+
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/TSVConnRead.en.rst b/doc/reference/api/TSVConnRead.en.rst
new file mode 100644
index 00000000..369d004f
--- /dev/null
+++ b/doc/reference/api/TSVConnRead.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnRead
+===========
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVIO TSVConnRead(TSVConn connp, TSCont contp, TSIOBuffer bufp, int64_t nbytes)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnReadVIOGet.en.rst b/doc/reference/api/TSVConnReadVIOGet.en.rst
new file mode 100644
index 00000000..ec2e7d2d
--- /dev/null
+++ b/doc/reference/api/TSVConnReadVIOGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnReadVIOGet
+=================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVIO TSVConnReadVIOGet(TSVConn connp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnShutdown.en.rst b/doc/reference/api/TSVConnShutdown.en.rst
new file mode 100644
index 00000000..c53b2106
--- /dev/null
+++ b/doc/reference/api/TSVConnShutdown.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnShutdown
+===============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSVConnShutdown(TSVConn connp, int read, int write)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnWrite.en.rst b/doc/reference/api/TSVConnWrite.en.rst
new file mode 100644
index 00000000..00805773
--- /dev/null
+++ b/doc/reference/api/TSVConnWrite.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnWrite
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVIO TSVConnWrite(TSVConn connp, TSCont contp, TSIOBufferReader readerp, int64_t nbytes)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVConnWriteVIOGet.en.rst b/doc/reference/api/TSVConnWriteVIOGet.en.rst
new file mode 100644
index 00000000..3963a286
--- /dev/null
+++ b/doc/reference/api/TSVConnWriteVIOGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVConnWriteVIOGet
+==================
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVIO TSVConnWriteVIOGet(TSVConn connp)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIOBufferGet.en.rst b/doc/reference/api/TSVIOBufferGet.en.rst
new file mode 100644
index 00000000..529b6583
--- /dev/null
+++ b/doc/reference/api/TSVIOBufferGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIOBufferGet
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSIOBuffer TSVIOBufferGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIOContGet.en.rst b/doc/reference/api/TSVIOContGet.en.rst
new file mode 100644
index 00000000..fe2afd7e
--- /dev/null
+++ b/doc/reference/api/TSVIOContGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIOContGet
+============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSCont TSVIOContGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIOMutexGet.en.rst b/doc/reference/api/TSVIOMutexGet.en.rst
new file mode 100644
index 00000000..1dc30bef
--- /dev/null
+++ b/doc/reference/api/TSVIOMutexGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIOMutexGet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSMutex TSVIOMutexGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIONBytesGet.en.rst b/doc/reference/api/TSVIONBytesGet.en.rst
new file mode 100644
index 00000000..fcddfb6f
--- /dev/null
+++ b/doc/reference/api/TSVIONBytesGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIONBytesGet
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int64_t TSVIONBytesGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIONBytesSet.en.rst b/doc/reference/api/TSVIONBytesSet.en.rst
new file mode 100644
index 00000000..f04a2ba0
--- /dev/null
+++ b/doc/reference/api/TSVIONBytesSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIONBytesSet
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSVIONBytesSet(TSVIO viop, int64_t nbytes)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIONDoneGet.en.rst b/doc/reference/api/TSVIONDoneGet.en.rst
new file mode 100644
index 00000000..6eec3eae
--- /dev/null
+++ b/doc/reference/api/TSVIONDoneGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIONDoneGet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int64_t TSVIONDoneGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIONDoneSet.en.rst b/doc/reference/api/TSVIONDoneSet.en.rst
new file mode 100644
index 00000000..a4e73659
--- /dev/null
+++ b/doc/reference/api/TSVIONDoneSet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIONDoneSet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSVIONDoneSet(TSVIO viop, int64_t ndone)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIONTodoGet.en.rst b/doc/reference/api/TSVIONTodoGet.en.rst
new file mode 100644
index 00000000..14fe7072
--- /dev/null
+++ b/doc/reference/api/TSVIONTodoGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIONTodoGet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: int64_t TSVIONTodoGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIOReaderGet.en.rst b/doc/reference/api/TSVIOReaderGet.en.rst
new file mode 100644
index 00000000..3b630a48
--- /dev/null
+++ b/doc/reference/api/TSVIOReaderGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIOReaderGet
+==============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSIOBufferReader TSVIOReaderGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIOReenable.en.rst b/doc/reference/api/TSVIOReenable.en.rst
new file mode 100644
index 00000000..79e8d7b7
--- /dev/null
+++ b/doc/reference/api/TSVIOReenable.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIOReenable
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSVIOReenable(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSVIOVConnGet.en.rst b/doc/reference/api/TSVIOVConnGet.en.rst
new file mode 100644
index 00000000..441ab95d
--- /dev/null
+++ b/doc/reference/api/TSVIOVConnGet.en.rst
@@ -0,0 +1,30 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSVIOVConnGet
+=============
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSVConn TSVIOVConnGet(TSVIO viop)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSfclose.en.rst b/doc/reference/api/TSfclose.en.rst
new file mode 100644
index 00000000..4aafd8ff
--- /dev/null
+++ b/doc/reference/api/TSfclose.en.rst
@@ -0,0 +1,36 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSfclose
+========
+
+Closes the file to which filep points and frees the data structures
+and buffers associated with it.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSfclose(TSFile filep)
+
+
+Description
+-----------
+
+If the file was opened for writing, any pending data is flushed.
diff --git a/doc/reference/api/TSfflush.en.rst b/doc/reference/api/TSfflush.en.rst
new file mode 100644
index 00000000..db83b10c
--- /dev/null
+++ b/doc/reference/api/TSfflush.en.rst
@@ -0,0 +1,34 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSfflush
+========
+
+Flushes pending data that has been buffered up in memory from previous
+calls to :c:func:`TSfwrite`.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: void TSfflush(TSFile filep)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSfgets.en.rst b/doc/reference/api/TSfgets.en.rst
new file mode 100644
index 00000000..6dbbd953
--- /dev/null
+++ b/doc/reference/api/TSfgets.en.rst
@@ -0,0 +1,38 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSfgets
+=======
+
+Reads a line from the file pointed to by filep into the buffer buf.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: char* TSfgets(TSFile filep, char *buf, size_t length)
+
+
+Description
+-----------
+
+Lines are terminated by a line feed character, ' '.  The line placed
+in the buffer includes the line feed character and is terminated with
+a NULL.  If the line is longer than length bytes then only the first
+length-minus-1 bytes are placed in buf.
diff --git a/doc/reference/api/TSfopen.en.rst b/doc/reference/api/TSfopen.en.rst
new file mode 100644
index 00000000..76f6f960
--- /dev/null
+++ b/doc/reference/api/TSfopen.en.rst
@@ -0,0 +1,37 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSfopen
+=======
+
+Opens a file for reading or writing and returns a descriptor for
+accessing the file.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: TSFile TSfopen(const char *filename, const char *mode)
+
+
+Description
+-----------
+
+The current implementation cannot open a file for both reading or
+writing.  See the SDK Programmer's Guide for sample code.
diff --git a/doc/reference/api/TSfread.en.rst b/doc/reference/api/TSfread.en.rst
new file mode 100644
index 00000000..ba40c163
--- /dev/null
+++ b/doc/reference/api/TSfread.en.rst
@@ -0,0 +1,34 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSfread
+=======
+
+Attempts to read length bytes of data from the file pointed to by
+filep into the buffer buf.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: size_t TSfread(TSFile filep, void *buf, size_t length)
+
+
+Description
+-----------
diff --git a/doc/reference/api/TSfwrite.en.rst b/doc/reference/api/TSfwrite.en.rst
new file mode 100644
index 00000000..64d3e1e2
--- /dev/null
+++ b/doc/reference/api/TSfwrite.en.rst
@@ -0,0 +1,39 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+
+TSfwrite
+========
+
+Attempts to write length bytes of data from the buffer buf to the file
+filep.
+
+
+Synopsis
+--------
+
+`#include <ts/ts.h>`
+
+.. c:function:: size_t TSfwrite(TSFile filep, const void *buf, size_t length)
+
+
+Description
+-----------
+
+Make sure that filep is open for writing.  You might want to check the
+number of bytes written (:c:func:`TSfwrite` returns this value)
+against the value of length.  If it is less, there might be
+insufficient space on disk, for example.
diff --git a/doc/reference/api/TSmalloc.en.rst b/doc/reference/api/TSmalloc.en.rst
new file mode 100644
index 00000000..19da27fa
--- /dev/null
+++ b/doc/reference/api/TSmalloc.en.rst
@@ -0,0 +1,81 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+========
+TSmalloc
+========
+
+Traffic Server memory allocation API.
+
+Synopsis
+========
+
+`#include <ts/ts.h>`
+
+.. function:: void * TSmalloc(size_t size , const char * path)
+.. function:: void * TSrealloc(void * ptr , size_t size , const char * path)
+.. function:: char * TSstrdup(const char * str)
+.. function:: char * TSstrndup(const char * str, size_t size)
+.. function:: size_t TSstrlcpy(char * dst , const char * src , size_t size)
+.. function:: size_t TSstrlcat(char * dst , const char * src , size_t size)
+.. function:: void TSfree(void * ptr)
+
+Description
+===========
+
+Traffic Server provides a number of routines for allocating and freeing
+memory. These routines correspond to similar routines in the C library.
+For example, :func:`TSrealloc` behaves like the C library routine :func:`realloc`.
+There are two reasons to use the routines provided by Traffic Server. The
+first is portability. The Traffic Server API routines behave the same on
+all of Traffic Servers supported platforms. For example, :func:`realloc` does
+not accept an argument of :data:`NULL` on some platforms. The second reason is
+that the Traffic Server routines actually track the memory allocations by
+file and line number. This tracking is very efficient, is always turned
+on, and is useful for tracking down memory leaks.
+
+:func:`TSmalloc` returns a pointer to size bytes of memory allocated from the
+heap. Traffic Server uses :func:`TSmalloc` internally for memory allocations.
+Always use :func:`TSfree` to release memory allocated by :func:`TSmalloc`; do not use
+:func:`free`.
+
+:func:`TSstrdup` returns a pointer to a new string that is a duplicate
+of the string pointed to by str. The memory for the new string is
+allocated using :func:`TSmalloc` and should be freed by a call to
+:func:`TSfree`.  :func:`TSstrndup` returns a pointer to a new string that
+is a duplicate of the string pointed to by str and size bytes
+long. The new string will be NUL-terminated. This API is very
+useful for transforming non NUL-terminated string values returned
+by APIs such as :func:`TSMimeHdrFieldValueStringGet` into NUL-terminated
+string values. The memory for the new string is allocated using
+:func:`TSmalloc` and should be freed by a call to :func:`TSfree`.
+
+:func:`TSstrlcpy` copies up to size - 1 characters from the NUL-terminated
+string src to dst, NUL-terminating the result.
+
+:func:`TSstrlcat` appends the NUL-terminated string src to the end of dst. It
+will append at most size - strlen(dst) - 1 bytes, NUL-terminating the
+result.
+
+:func:`TSfree` releases the memory allocated by :func:`TSmalloc` or :func:`TSrealloc`. If
+ptr is :data:`NULL`, :func:`TSfree` does no operation.
+
+See also
+========
+:manpage:`TSAPI(3ts)`
diff --git a/doc/reference/api/index.en.rst b/doc/reference/api/index.en.rst
new file mode 100644
index 00000000..17251641
--- /dev/null
+++ b/doc/reference/api/index.en.rst
@@ -0,0 +1,25 @@
+API Reference
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :glob:
+   :maxdepth: 1
+
+   *
diff --git a/doc/reference/commands/index.en.rst b/doc/reference/commands/index.en.rst
new file mode 100644
index 00000000..6764fecb
--- /dev/null
+++ b/doc/reference/commands/index.en.rst
@@ -0,0 +1,33 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Command Reference
+=================
+
+.. toctree::
+  :maxdepth: 1
+
+  traffic_cop.en
+  traffic_line.en
+  traffic_logcat.en
+  traffic_logstats.en
+  traffic_manager.en
+  traffic_server.en
+  traffic_shell.en
+  traffic_top.en
+  tspush.en
+  tsxs.en
diff --git a/doc/reference/commands/traffic_cop.en.rst b/doc/reference/commands/traffic_cop.en.rst
new file mode 100644
index 00000000..23808c32
--- /dev/null
+++ b/doc/reference/commands/traffic_cop.en.rst
@@ -0,0 +1,68 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. _traffic_cop:
+
+===========
+traffic_cop
+===========
+
+.. program:: traffic_cop
+
+Description
+===========
+
+:program:`traffic_cop` is a watchdog program that is responsible
+for starting :program:`traffic_manager` and :program:`traffic_server`
+and monitoring them for responsiveness. If either of these processes
+are determined to be unresponsive, :program:`traffic_cop` will kill
+and restart them.
+
+On Linux, :program:`traffic_cop` will also monitor available memory
+and swap space, restarting the watched processes if the available
+memory falls below a minimum threshold. The memory thresholds can
+be configured with the :ts:cv:`proxy.config.cop.linux_min_swapfree_kb`
+and :ts:cv:`proxy.config.cop.linux_min_memfree_kb` variables.
+
+The following options are available:
+
+.. option:: -d, --debug
+
+   Emit debugging messages.
+
+.. option:: -o, --stdout
+
+  :program:`traffic_cop` ordinarily logs to syslog, however for
+  debugging purposes, this option causes it to print messages to
+  standard output instead.
+
+.. option:: -s, --stop
+
+   Kill children using ``SIGSTOP`` instead of ``SIGKILL``. This
+   option is primarily for debugging.
+
+.. option:: -V, --version
+
+   Print version information and exit.
+
+See also
+========
+
+:manpage:`syslog(1)`,
+:manpage:`traffic_manager(8)`,
+:manpage:`traffic_server(8)`
+
diff --git a/doc/reference/commands/traffic_line.en.rst b/doc/reference/commands/traffic_line.en.rst
new file mode 100644
index 00000000..04e67bba
--- /dev/null
+++ b/doc/reference/commands/traffic_line.en.rst
@@ -0,0 +1,260 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+============
+traffic_line
+============
+
+Synopsis
+========
+
+
+:program:`traffic_line` [options]
+
+.. _traffic-line-commands:
+
+Description
+===========
+
+:program:`traffic_line` is used to execute individual Traffic Server
+commands and to script multiple commands in a shell.
+
+Options
+=======
+
+.. program:: traffic_line
+
+.. option:: -B, --bounce_cluster
+
+    Bounce all Traffic Server nodes in the cluster. Bouncing Traffic
+    Server shuts down and immediately restarts Traffic Server,
+    node-by-node.
+
+.. option:: -b, --bounce_local
+
+    Bounce Traffic Server on the local node. Bouncing Traffic Server
+    shuts down and immediately restarts the Traffic Server node.
+
+.. option:: -C, --clear_cluster
+
+    Clears accumulated statistics on all nodes in the cluster.
+
+.. option:: -c, --clear_node
+
+    Clears accumulated statistics on the local node.
+
+.. option:: -h, --help
+
+    Print usage information and exit.
+
+.. option:: -L, --restart_local
+
+    Restart the :program:`traffic_manager` and :program:`traffic_server`
+    processes on the local node.
+
+.. option:: -M, --restart_cluster
+
+    Restart the :program:`traffic_manager` process and the
+    :program:`traffic_server` process on all the nodes in a cluster.
+
+.. option:: -m REGEX, --match_var REGEX
+
+    Display the current values of all performance statistics or configuration
+    variables whose names match the given regular expression.
+
+.. option:: -r VAR, --read_var VAR
+
+    Display specific performance statistics or a current configuration
+    setting.
+
+.. option:: -s VAR, --set_var VAR
+
+    Set the configuration variable named *VAR*. The value of the configuration
+    variable is given by the :option:`traffic_line -v` option.
+    Refer to the :file:`records.config` documentation for a list
+    of the configuration variables you can specify.
+
+.. option:: -S, --shutdown
+
+    Shut down Traffic Server on the local node.
+
+.. option:: -U, --startup
+
+    Start Traffic Server on the local node.
+
+.. option:: -v VALUE, --value VALUE
+
+    Specify the value to set when setting a configuration variable.
+
+.. option:: -V, --version
+
+    Print version information and exit.
+
+.. option:: -x, --reread_config
+
+    Initiate a Traffic Server configuration file reread. Use this
+    command to update the running configuration after any configuration
+    file modification.
+
+.. option:: -Z, --zero_cluster
+
+    Reset performance statistics to zero across the cluster.
+
+.. option:: -z, --zero_node
+
+    Reset performance statistics to zero on the local node.
+
+.. option:: --offline PATH
+
+   Mark a cache storage device as offline. The storage is identified by a *path* which must match exactly a path
+   specified in :file:`storage.config`. This removes the storage from the cache and redirects requests that would have
+   used this storage to other storage. This has exactly the same effect as a disk failure for that storage. This does
+   not persist across restarts of the :program:`traffic_server` process.
+
+.. option:: --alarms
+
+   List all alarm events that have not been acknowledged (cleared).
+
+.. option:: --clear_alarms [all | #event | name]
+
+   Clear (acknowledge) an alarm event. The arguments are "all" for all current
+   alarms, a specific alarm number (e.g. ''1''), or an alarm string identifier
+   (e.g. ''MGMT_ALARM_PROXY_CONFIG_ERROR'').
+
+.. option:: --status
+
+   Show the current proxy server status, indicating if we're running or not.
+
+
+.. _traffic-line-performance-statistics:
+
+Performance Statistics
+======================
+
+proxy.process.ssl.user_agent_other_errors
+  Total number of *other* ssl client connection errors (counts ssl
+  errors that are not captured in other user agent stats below)
+
+proxy.process.ssl.user_agent_expired_cert
+  Total number of ssl client connection failures where the cert was
+  expired.
+
+proxy.process.ssl.user_agent_revoked_cert
+  Total number of ssl client connection failures where the cert was
+  revoked.
+
+proxy.process.ssl.user_agent_unknown_cert
+  Total number of ssl client connection failures related to the cert,
+  but specific error was unknown.
+
+proxy.process.ssl.user_agent_cert_verify_failed
+  Total number of ssl client connection failures where cert verification
+  failed.
+
+proxy.process.ssl.user_agent_bad_cert
+  Total number of ssl client connection failures where the cert is bad.
+
+proxy.process.ssl.user_agent_decryption_failed
+  Total number of ssl client connection decryption failures (during
+  negotiation).
+
+proxy.process.ssl.user_agent_wrong_version
+  Total number of ssl client connections that provided an invalid protocol
+  version.
+
+proxy.process.ssl.user_agent_unknown_ca
+  Total number of ssl client connection that failed due to unknown ca.
+
+proxy.process.ssl.origin_server_other_errors
+  Total number of *other* ssl origin server connection errors (counts ssl
+  errors that are not captured in other origin server stats below).
+
+proxy.process.ssl.origin_server_expired_cert
+  Total number of ssl origin server connection failures where the cert
+  was expired.
+
+proxy.process.ssl.origin_server_revoked_cert
+  Total number of ssl origin server connection failures where the cert
+  was revoked.
+
+proxy.process.ssl.origin_server_unknown_cert
+  Total number of ssl origin server connection failures related to the
+  cert where specific error was unknown.
+
+proxy.process.ssl.origin_server_cert_verify_failed
+  Total number of ssl origin server connection failures where cert
+  verification failed.
+
+proxy.process.ssl.origin_server_bad_cert
+  Total number of ssl origin server connection failures where the cert
+  is bad.
+
+proxy.process.ssl.origin_server_decryption_failed
+  Total number of ssl origin server connection decryption failures
+  (during negotiation).
+
+proxy.process.ssl.origin_server_wrong_version
+  Total number of ssl origin server connections that provided an invalid
+  protocol version.
+
+proxy.process.ssl.origin_server_unknown_ca
+  Total number of ssl origin server connection that failed due to
+  unknown ca.
+
+proxy.process.ssl.user_agent_sessions
+  Total number of ssl/tls sessions created.
+
+proxy.process.ssl.user_agent_session_hit
+  Total number of session hits.  A previous session was reused which
+  resulted in an abbreviated ssl client negotiation.
+
+proxy.process.ssl.user_agent_session_miss
+  Total number of session misses.  The ssl client provided a session id
+  that was not found in cache and, therefore, could not be used.
+
+proxy.process.ssl.user_agent_session_timeout
+  Total number of session timeouts.  The ssl client provided a session, but
+  it could not be used because it was past the session timeout.
+
+proxy.process.ssl.cipher.user_agent.{CIPHERNAME}
+  Total number of ssl client connections that used cipherName.  The
+  list of cipher statistics is dynamic and depends upon the installed
+  ciphers and the :ts:cv:`proxy.config.ssl.server.cipher_suite`
+  configuration. The set of cipher statistics can be discovered
+  with :option:`traffic_line -m`. For example::
+
+    $ traffic_line -m proxy.process.ssl.cipher.user_agent.
+    proxy.process.ssl.cipher.user_agent.ECDHE-RSA-AES256-GCM-SHA384 0
+    proxy.process.ssl.cipher.user_agent.ECDHE-ECDSA-AES256-GCM-SHA384 0
+    proxy.process.ssl.cipher.user_agent.ECDHE-RSA-AES256-SHA384 0
+    proxy.process.ssl.cipher.user_agent.ECDHE-ECDSA-AES256-SHA384 0
+    ...
+
+Examples
+========
+
+Configure Traffic Server to log in Squid format::
+
+    $ traffic_line -s proxy.config.log.squid_log_enabled -v 1
+    $ traffic_line -s proxy.config.log.squid_log_is_ascii -v 1
+    $ traffic_line -x
+
+See also
+========
+
+:manpage:`records.config(5)`,
+:manpage:`storage.config(5)`
diff --git a/doc/reference/commands/traffic_logcat.en.rst b/doc/reference/commands/traffic_logcat.en.rst
new file mode 100644
index 00000000..71695032
--- /dev/null
+++ b/doc/reference/commands/traffic_logcat.en.rst
@@ -0,0 +1,106 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+==============
+traffic_logcat
+==============
+
+Synopsis
+========
+
+:program:`traffic_logcat` [-o output-file | -a] [-CEhSVw2] [input-file ...]
+
+.. program:: traffic_logcat
+
+
+Description
+===========
+
+To analyse a binary log file using standard tools, you must first convert
+it to ASCII. :program:`traffic_logcat` does exactly that.
+
+Options
+=======
+
+.. option:: -o PATH, --output_file PATH
+
+Specifies where the command output is directed.
+
+.. option:: -a, --auto_filename
+
+Automatically generates the output filename based on the input
+filename. If the input is from stdin, then this option is ignored.
+For example::
+
+     traffic_logcat -a squid-1.blog squid-2.blog squid-3.blog
+
+generates::
+
+     squid-1.log squid-2.log squid-3.log
+
+.. option:: -f, --follow
+
+Follows the file, like :manpage:`tail(1)` ``-f``
+
+.. option:: -C, --clf
+
+Attempts to transform the input to Netscape Common format, if possible.
+
+.. option:: -E, --elf
+
+Attempts to transform the input to Netscape Extended format, if possible.
+
+.. option:: -S, --squid
+
+Attempts to transform the input to Squid format, if possible.
+
+.. option:: -2, --elf2
+
+Attempt to transform the input to Netscape Extended-2 format, if possible.
+
+.. option:: -T, --debug_tags
+
+.. option:: -w, --overwrite_output
+
+.. option:: -h, --help
+
+   Print usage information and exit.
+
+.. option:: -V, --version
+
+   Print version information and exit.
+
+
+.. note:: Use only one of the following options at any given time: ``-S``, ``-C``, ``-E``, or ``-2``.
+
+If no input files are specified, then :program:`traffic_logcat` reads from the
+standard input (``stdin``). If you do not specify an output file, then
+:program:`traffic_logcat` writes to the standard output (``stdout``).
+
+For example, to convert a binary log file to an ASCII file, you can use
+the :program:`traffic_logcat` command with either of the following options
+below::
+
+    traffic_logcat binary_file > ascii_file
+    traffic_logcat -o ascii_file binary_file
+
+The binary log file is not modified by this command.
+
+See Also
+========
+
+:manpage:`tail(1)`
diff --git a/doc/reference/commands/traffic_logstats.en.rst b/doc/reference/commands/traffic_logstats.en.rst
new file mode 100644
index 00000000..874870c6
--- /dev/null
+++ b/doc/reference/commands/traffic_logstats.en.rst
@@ -0,0 +1,68 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+================
+traffic_logstats
+================
+
+.. program:: traffic_logstats
+
+Description
+===========
+
+.. option:: -f FILE, --log_file FILE
+
+.. option:: -o LIST, --origin_list LIST
+
+.. option:: -O FILE, --origin_file FILE
+
+.. option:: -M COUNT, --max_origins COUNT
+
+.. option:: -u COUNT, --urls COUNT
+
+.. option:: -U COUNT, --show_urls COUNT
+
+.. option:: --A, --as_object
+
+.. option:: -i, --incremental
+
+.. option:: -S FILE, --statetag FILE
+
+.. option:: -t, --tail
+
+.. option:: -s, --summary
+
+.. option:: -j, --json
+
+.. option:: -c, --cgi
+
+.. option:: -m, --min_hits
+
+.. option:: -a, --max_age
+
+.. option:: -l COUNT, --line_len COUNT
+
+.. option:: -T TAGS, --debug_tags TAGS
+
+.. option:: -h, --help
+
+   Print usage information and exit.
+
+.. option:: -V, --version
+
+   Print version information and exit.
+
diff --git a/doc/reference/commands/traffic_manager.en.rst b/doc/reference/commands/traffic_manager.en.rst
new file mode 100644
index 00000000..1267cf25
--- /dev/null
+++ b/doc/reference/commands/traffic_manager.en.rst
@@ -0,0 +1,51 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. _traffic_manager:
+
+===============
+traffic_manager
+===============
+
+.. program:: traffic_manager
+
+Description
+===========
+
+.. option:: proxyOff
+.. option:: -nosyslog
+.. option:: -aconfPort PORT
+.. option:: -clusterMCPort PORT
+.. option:: -groupAddr ADDRESS
+.. option:: -clusterRSPort PORT
+.. option:: -debug TAGS
+.. option:: -action TAGS
+.. option:: -path FILE
+.. option:: -recordsConf FILE
+.. option:: -tsArgs ARGUMENTS
+.. option:: -proxyPort PORT
+.. option:: -proxyBackDoor PORT
+.. option:: -version
+
+Environment
+===========
+
+.. envvar:: MGMT_ACONF_PORT
+.. envvar:: MGMT_CLUSTER_MC_PORT
+.. envvar:: MGMT_CLUSTER_RS_PORT
+.. envvar:: MGMT_GROUP_ADDR
+
diff --git a/doc/reference/commands/traffic_server.en.rst b/doc/reference/commands/traffic_server.en.rst
new file mode 100644
index 00000000..75c11ea5
--- /dev/null
+++ b/doc/reference/commands/traffic_server.en.rst
@@ -0,0 +1,82 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. _traffic_server:
+
+==============
+traffic_server
+==============
+
+.. program:: traffic_server
+
+Description
+===========
+
+.. option:: -n COUNT, --net_threads COUNT
+
+.. option:: -Z COUNT, --cluster_threads COUNT
+
+.. option:: -U COUNT, --udp_threads COUNT
+
+.. option:: -a, --accepts_thread
+
+.. option:: -b, --accept_till_done
+
+.. option:: -p PORT, --httpport PORT
+
+.. option:: -P PORT, --cluster_port PORT
+
+.. option:: -o LEVEL, --dprintf_level LEVEL
+
+.. option:: -R LEVEL, --regression LEVEL
+
+.. option:: -r TEST, --regression_rest TEST
+
+.. option:: -T TAGS, --debug_tags TAGS
+
+.. option:: -B TAGS, --action_tags TAGS
+
+.. option:: -i COUNT, --interval COUNT
+
+.. option:: -M, --remote_management
+
+.. option:: -C CMD, --command CMD
+
+.. option:: -k, --clear_hostdb
+
+.. option:: -K, --clear_cache
+
+.. option:: -c CORE, --read_core CORE
+
+.. option:: --accept_mss MSS
+
+.. option:: -t MSECS, --poll_timeout MSECS
+
+.. option:: -h, --help
+
+   Print usage information and exit.
+
+.. option:: -V, --version
+
+   Print version information and exit.
+
+Environment
+===========
+
+.. envvar:: PROXY_REMOTE_MGMT
+
+.. envvar:: PROXY_AUTO_EXIT
diff --git a/doc/reference/commands/traffic_shell.en.rst b/doc/reference/commands/traffic_shell.en.rst
new file mode 100644
index 00000000..4cad9d94
--- /dev/null
+++ b/doc/reference/commands/traffic_shell.en.rst
@@ -0,0 +1,29 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+=============
+traffic_shell
+=============
+
+.. program:: traffic_shell
+
+Description
+===========
+
+.. option:: -V, --version
+
+   Print version information and exit.
diff --git a/doc/reference/commands/traffic_top.en.rst b/doc/reference/commands/traffic_top.en.rst
new file mode 100644
index 00000000..3c73a1f2
--- /dev/null
+++ b/doc/reference/commands/traffic_top.en.rst
@@ -0,0 +1,27 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+===========
+traffic_top
+===========
+
+.. program:: traffic_top
+
+Description
+===========
+
+.. option:: -s COUNT
diff --git a/doc/reference/commands/tspush.en.rst b/doc/reference/commands/tspush.en.rst
new file mode 100644
index 00000000..fc7c9479
--- /dev/null
+++ b/doc/reference/commands/tspush.en.rst
@@ -0,0 +1,36 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+======
+tspush
+======
+
+.. program:: tspush
+
+Description
+===========
+
+.. option:: -f FILE, --file FILE
+
+.. option:: -u URL, --url URL
+
+.. option:: -v, --verbose
+
+.. option:: -h, --help
+
+   Print usage information and exit.
+
diff --git a/doc/reference/commands/tsxs.en.rst b/doc/reference/commands/tsxs.en.rst
new file mode 100644
index 00000000..17db7b2b
--- /dev/null
+++ b/doc/reference/commands/tsxs.en.rst
@@ -0,0 +1,49 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+====
+tsxs
+====
+
+.. program:: tsxs
+
+Description
+===========
+
+.. option:: -q VAR, --query VAR
+
+.. option:: -I PATH
+
+.. option:: -L PATH
+
+.. option:: -l LIB
+
+.. option:: -o FILE
+
+.. option:: -i
+
+.. option:: -c FILE [FILE ...]
+
+.. option:: -C FILE [FILE ...]
+
+.. option:: -v, --verbose
+
+.. option:: -h, --help
+
+   Print usage information and exit.
+
+
diff --git a/doc/reference/configuration/cache.config.en.rst b/doc/reference/configuration/cache.config.en.rst
new file mode 100644
index 00000000..64f64f46
--- /dev/null
+++ b/doc/reference/configuration/cache.config.en.rst
@@ -0,0 +1,196 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. configfile:: cache.config
+
+============
+cache.config
+============
+
+The :file:`cache.config` file (by default, located in 
+``/opt/trafficserver/etc/trafficserver/``) defines how Traffic Server caches 
+web objects. You can add caching rules to specify the following: 
+
+    - Not to cache objects from specific IP addresses 
+    - How long to pin particular objects in the cache
+    - How long to consider cached objects as fresh 
+    - Whether to ignore no-cache directives from the server
+    
+.. important::
+
+   After you modify the :file:`cache.config` file, navigate to
+   the Traffic Server bin directory; then run the :option:`traffic_line -x`
+   command to apply changes. When you apply the changes to a node in a
+   cluster, Traffic Server automatically applies the changes to all other
+   nodes in the cluster.
+
+Format
+======
+
+Each line in the :file:`cache.config` file contains a caching rule. Traffic
+Server recognizes three space-delimited tags::
+
+   primary_destination=value secondary_specifier=value action=value
+
+You can use more than one secondary specifier in a rule. However, you
+cannot repeat a secondary specifier. The following list shows the
+possible primary destinations with allowed values.
+
+.. _cache-config-format-dest-domain:
+
+``dest_domain``
+   A requested domain name. Traffic Server matches the domain name of
+   the destination from the URL in the request.
+
+.. _cache-config-format-dest-host:
+
+``dest_host``
+   A requested hostname. Traffic Server matches the hostname of the
+   destination from the URL in the request.
+
+.. _cache-config-format-dest-ip:
+
+``dest_ip``
+   A requested IP address. Traffic Server matches the IP address of the
+   destination in the request.
+
+.. _cache-config-format-url-regex:
+
+``url_regex``
+   A regular expression (regex) to be found in a URL.
+
+The secondary specifiers are optional in the :file:`cache.config` file. The
+following list shows possible secondary specifiers with allowed values.
+
+.. _cache-config-format-port:
+
+``port``
+   A requested URL port.
+
+.. _cache-config-format-scheme:
+
+``scheme``
+   A request URL protocol: http or https.
+
+.. _cache-config-format-prefix:
+
+``prefix``
+   A prefix in the path part of a URL.
+
+.. _cache-config-format-suffix:
+
+``suffix``
+   A file suffix in the URL.
+
+.. _cache-config-format-method:
+
+``method``
+   A request URL method: get, put, post, trace.
+
+.. _cache-config-format-time:
+
+``time``
+   A time range, such as 08:00-14:00.
+
+.. _cache-config-format-src-ip:
+
+``src_ip``
+   A client IP address.
+
+The following list shows possible actions and their allowed values.
+
+
+.. _cache-config-format-action:
+
+``action``
+   One of the following values:
+
+   -  ``never-cache`` configures Traffic Server to never cache
+      specified objects.
+   -  ``ignore-no-cache`` configures Traffic Server to ignore all
+      ``Cache-Control: no-cache`` headers.
+   -  ``ignore-client-no-cache`` configures Traffic Server to ignore
+      ``Cache-Control: no-cache`` headers from client requests.
+   -  ``ignore-server-no-cache`` configures Traffic Server to ignore
+      ``Cache-Control: no-cache`` headers from origin server responses.
+   -  ``cluster-cache-local`` configures the cluster cache to allow for
+      this content to be stored locally on every cluster node.
+
+.. _cache-responses-to-cookies:
+
+``cache-responses-to-cookies``
+   Change the style of caching with regard to cookies. This effectively
+   overrides the configuration parameter
+   :ts:cv:`proxy.config.http.cache.cache_responses_to_cookies`
+   and uses the same values with the same semantics. The override happens
+   only for requests that match.
+    
+
+.. _cache-config-format-pin-in-cache:
+
+``pin-in-cache``
+   Preserves objects in cache, preventing them from being overwritten.
+   Does not affect objects that are determined not to be cacheable. This
+   setting can have performance issues, and  severely affect the cache. 
+   For instance, if the primary destination matches all objects, once the 
+   cache is full, no new objects could get written as nothing would be 
+   evicted.  Similarly, for each cache-miss, each object would incur extra 
+   checks to determine if the object it would replace could be overwritten. 
+
+   The value is the amount of time you want to keep the object(s) in the cache. The
+   following time formats are allowed:
+
+   -  ``d`` for days; for example: 2d
+   -  ``h`` for hours; for example: 10h
+   -  ``m`` for minutes; for example: 5m
+   -  ``s`` for seconds; for example: 20s
+   -  mixed units; for example: 1h15m20s
+
+.. _cache-config-format-revalidate:
+
+``revalidate``
+   For objects that are in cache, overrides the the amount of time the object(s) 
+   are to be considered fresh. Use the same time formats as ``pin-in-cache``.
+
+.. _cache-config-format-ttl-in-cache:
+
+``ttl-in-cache``
+   Forces object(s) to become cached, as if they had a Cache-Control: max-age:<time>
+   header. Can be overruled by requests with cookies. The value is the amount of 
+   time object(s) are to be kept in the cache, regardless of Cache-Control response 
+   headers. Use the same time formats as pin-in-cache and revalidate.
+
+Examples
+========
+
+The following example configures Traffic Server to revalidate ``gif``
+and ``jpeg`` objects in the domain ``mydomain.com`` every 6 hours, and
+all other objects in ``mydomain.com`` every hour. The rules are applied
+in the order listed. ::
+
+   dest_domain=mydomain.com suffix=gif revalidate=6h
+   dest_domain=mydomain.com suffix=jpeg revalidate=6h
+   dest_domain=mydomain.com revalidate=1h
+
+Force a specific regex to be in cache between 7-11pm of the server's time for 26hours. ::
+
+   url_regex=example.com/articles/popular.* time=19:00-23:00 ttl-in-cache=1d2h
+
+Prevent objects from being evicted from cache: 
+
+   url_regex=example.com/game/.* pin-in-cache=1h
+
diff --git a/doc/reference/configuration/congestion.config.en.rst b/doc/reference/configuration/congestion.config.en.rst
new file mode 100644
index 00000000..4b5bc887
--- /dev/null
+++ b/doc/reference/configuration/congestion.config.en.rst
@@ -0,0 +1,198 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+=================
+congestion.config
+=================
+
+.. configfile:: congestion.config
+
+The :file:`congestion.config` file (by default, located in 
+``/opt/trafficserver/etc/trafficserver/``) enables you to configure Traffic Server
+to stop forwarding HTTP requests to origin servers when they become
+congested, and then send the client a message to retry the congested
+origin server later. After you modify the :file:`congestion.config` file,
+navigate to the Traffic Server bin directory; then run the
+:option:`traffic_line -x` command to apply changes. When you apply the changes
+to a node in a cluster, Traffic Server automatically applies the changes
+to all other nodes in the cluster. Traffic Server uses the
+:file:`congestion.config` file only if you enable the `Congestion
+Control <http#UsingCongestionControl>`_ option.
+
+You can create rules in the congestion.config file to specify:
+
+-  Which origin servers Traffic Server tracks for congestion.
+-  The timeouts Traffic Server uses, depending on whether a server is
+   congested.
+-  The page Traffic Server sends to the client when a server becomes
+   congested.
+-  If Traffic Server tracks the origin servers per IP address or per
+   hostname.
+
+Format
+======
+
+Each line in :file:`congestion.config` must follow the format below. Traffic
+Server applies the rules in the order listed, starting at the top of the
+file. Traffic Server recognizes three space-delimited tags::
+
+    primary_destination=value secondary_specifier=value action=value
+
+The following list shows possible primary destinations with allowed
+values.
+
+*``dest_domain``* {#dest_domain}
+    A requested domain name.
+
+*``dest_host``* {#dest_host}
+    A requested hostname.
+
+*``dest_ip``* {#dest_ip}
+    A requested IP address.
+
+*``url_regex``* {#url_regex}
+    A regular expression (regex) to be found in a URL.
+
+The secondary specifiers are optional in the congestion.config file. The
+following list shows possible secondary specifiers with allowed values.
+You can use more than one secondary specifier in a rule; however, you
+cannot repeat a secondary specifier.
+
+*``port``* {#port}
+    A requested URL port or range of ports.
+
+*``prefix``* {#prefix}
+    A prefix in the path part of a URL.
+
+The following list shows the possible tags and their allowed values.
+
+*``max_connection_failures``* {#max_connection_failures}
+    Default: ``5``
+    The maximum number of connection failures allowed within the fail
+    window described below before Traffic Server marks the origin server
+    as congested.
+
+*``fail_window``* {#fail_window}
+    Default: ``120`` seconds.
+    The time period during which the maximum number of connection
+    failures can occur before Traffic Server marks the origin server as
+    congested.
+
+*``proxy_retry_interval``* {#proxy_retry_interval}
+    Default: ``10`` seconds.
+    The number of seconds that Traffic Server waits before contacting a
+    congested origin server again.
+
+*``client_wait_interval``* {#client_wait_interval}
+    Default: ``300`` seconds.
+    The number of seconds that the client is advised to wait before
+    retrying the congested origin server.
+
+*``wait_interval_alpha``* {#wait_interval_alpha}
+    Default: ``30`` seconds
+    The upper limit for a random number that is added to the wait
+    interval.
+
+*``live_os_conn_timeout``* {#live_os_conn_timeout}
+    Default: ``60`` seconds.
+    The connection timeout to the live (uncongested) origin server. If a
+    client stops a request before the timeout occurs, then Traffic
+    Server does not record a connection failure.
+
+*``live_os_conn_retries``* {#live_os_conn_retries}
+    Default: ``2``
+    The maximum number of retries allowed to the live (uncongested)
+    origin server.
+
+*``dead_os_conn_timeout``* {#dead_os_conn_timeout}
+    Default: ``15`` seconds.
+    The connection timeout to the congested origin server.
+
+*``dead_os_conn_retries``* {#dead_os_conn_retries}
+    Default: ``1``
+    The maximum number of retries allowed to the congested origin
+    server.
+
+*``max_connection``* {#max_connection}
+    Default: ``-1``
+    The maximum number of connections allowed from Traffic Server to the
+    origin server.
+
+*``error_page``* {#error_page}
+    Default: ``"congestion#retryAfter"``
+    The error page sent to the client when a server is congested. You
+    must enclose the value in quotes;
+
+*:file:`congestion.config`* {#congestion_scheme}
+    Default: ``"per_ip"``
+    Specifies if Traffic Server applies the rule on a per-host
+    (``"per_host"``) or per-IP basis (``"per_ip"``). You must enclose
+    the value in quotes.
+
+    For example: if the server ``www.host1.com`` has two IP addresses
+    and you use the tag value ``"per_ip"``, then each IP address has its
+    own number of connection failures and is marked as congested
+    independently. If you use the tag value ``"per_host"`` and the
+    server ``www.host1.com`` is marked as congested, then both IP
+    addresses are marked as congested.
+
+Examples
+========
+
+The following :file:`congestion.config` rule configures Traffic Server to
+stop forwarding requests to the server ``www.host.com`` on port 80 (HTTP
+traffic) if the server is congested, according to the timeouts
+specified. Traffic Server uses the default tag values because no tag has
+been specified.
+
+::
+
+    dest_host=www.host.com port=80
+
+You can use one or more tags in a rule, but each tag must have one value
+only. If you specify no tags in the rule, then Traffic Server uses the
+default values.
+
+You can override any of the default tag values by adding configuration
+variables at the end of :file:`records.config` as follows:
+
+::
+
+    CONFIG proxy.config.http.congestion_control.default.tag INT|STRING value
+
+where tag is one of the tags described in the list under
+:file:`congestion.config` and value is the value you
+want to use.
+
+For example::
+
+    CONFIG proxy.config.http.congestion_control.default.congestion_scheme STRING per_host
+
+.. important::
+
+    Rules in the :file:`congestion.config` file override the
+    following variables in the :file:`records.config` file:
+
+::
+
+    proxy.config.http.connect_attempts_max_retries
+    proxy.config.http.connect_attempts_max_retries_dead_server
+    proxy.config.http.connect_attempts_rr_retries
+    proxy.config.http.connect_attempts_timeout
+    proxy.config.http.down_server.cache_time
+    proxy.config.http.down_server.abort_threshold
+
diff --git a/doc/reference/configuration/hosting.config.en.rst b/doc/reference/configuration/hosting.config.en.rst
new file mode 100644
index 00000000..65d698c5
--- /dev/null
+++ b/doc/reference/configuration/hosting.config.en.rst
@@ -0,0 +1,99 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+==============
+hosting.config
+==============
+
+.. configfile:: hosting.config
+
+The :file:`hosting.config` file (by default, located in 
+``/opt/trafficserver/etc/trafficserver/``) you to assign cache partitions to
+specific origin servers and/or domains so that you can manage cache
+space efficiently and restrict disk usage. For step-by-step instructions
+on partitioning the cache according to origin servers and/or domains,
+refer to `Partitioning the Cache <../configuring-cache#PartitoningCache>`_.
+
+Before you can assign cache partitions to specific
+origin servers and/or domains, you must first partition your cache
+according to size and protocol in the :file:`volume.config`
+file.
+
+After you modify hosting.config, navigate to the Traffic Server bin
+directory and run :option:`traffic_line -x` to apply your changes.
+
+When you apply the changes to a node in a cluster, Traffic Server
+automatically applies the changes to all other nodes in the cluster.
+
+.. important::
+
+    The :file:`volume.config` configuration must be the same on all nodes in a cluster.
+
+Format
+======
+
+Each line in the :file:`hosting.config` file must have one of the following
+formats::
+
+    hostname=HOST partition=NUMBERS
+    domain=DOMAIN partition=NUMBERS
+
+where ``HOST`` is the fully-qualified hostname of the origin server
+whose content you want to store on a particular partition (for example,
+``www.myhost.com``); ``DOMAIN`` is the domain whose content you
+want to store on a particular partition(for example, ``mydomain.com``);
+and ``NUMBERS`` is a comma-separated list of the partitions on
+which you want to store the content that belongs to the origin server or
+domain listed. The partition numbers must be valid numbers listed in the
+file:`volume.config`.
+
+**Note:** To allocate more than one partition to an origin server or
+domain, you must enter the partitions in a comma-separated list on one
+line, as shown in the example below. The
+:file:`hosting.config`  file cannot contain multiple entries
+for the same origin server or domain.
+
+Generic Partition
+=================
+
+When configuring the :file:`hosting.config` file, you must assign a generic
+partition to use for content that does not belong to any of the origin
+servers or domains listed. If all partitions for a particular origin
+server become corrupt, Traffic Server will also use the generic
+partition to store content for that origin server.
+
+The generic partition must have the following format::
+
+    hostname=* partition=NUMBERS
+
+where ``NUMBERS`` is a comma-separated list of generic
+partitions.
+
+Examples
+========
+
+The following example configures Traffic Server to store content from
+the domain ``mydomain.com`` in partition 1 and content from
+``www.myhost.com`` in partition 2. Traffic Server stores content from
+all other origin servers in partitions 3 and 4.
+
+::
+
+    domain=mydomain.com partition=1
+    hostname=www.myhost.com partition=2
+    hostname=* partition=3,4
+
diff --git a/doc/reference/configuration/icp.config.en.rst b/doc/reference/configuration/icp.config.en.rst
new file mode 100644
index 00000000..94133baf
--- /dev/null
+++ b/doc/reference/configuration/icp.config.en.rst
@@ -0,0 +1,99 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+==========
+icp.config
+==========
+
+.. configfile:: icp.config
+
+The :file:`icp.config` file defines ICP peers (parent and sibling caches).
+
+.. important::
+
+    After you modify the icp.config file, navigate to the
+    Traffic Server bin directory and run the :option:`traffic_line -x` command to
+    apply the changes. When you apply the changes to a node in a cluster,
+    Traffic Server automatically applies the changes to all other nodes in
+    the cluster.
+
+Format
+======
+
+Each line in the icp.config file contains the name and configuration
+information for a single ICP peer in the following format::
+
+    host : host_IP : peer_type : proxy_port : icp_port : MC_on : MC_IP : MC_TTL :
+
+Each field is described in the following list.
+
+*``host``* {#host}
+    The hostname of the ICP peer.
+
+    This field is optional; if you do not specify the hostname of the
+    ICP peer, you must specify the IP address.
+
+*``host_IP``* {#host_IP}
+    The IP address of the ICP peer.
+
+    This field is optional; if you do not specify the IP address of the
+    ICP peer, you must specify the hostname.
+
+*``ctype``* {#ctype}
+    Use the following options:
+
+    -  1 to indicate an ICP parent cache
+    -  2 to indicate an ICP sibling cache
+
+*``proxy_port``* {#proxy_port}
+    The port number of the TCP port used by the ICP peer for proxy
+    communication.
+
+*``icp_port``* {#icp_port}
+    The port number of the UDP port used by the ICP peer for ICP
+    communication.
+
+*``MC_on``* {#mc_on}
+    Enable or disable MultiCast:
+
+    -  0 if multicast is disabled
+    -  1 if multicast is enabled
+
+*``MC_ip``* {#mc_ip}
+    The MultiCast IP address.
+
+*``MC_ttl``* {#mc_ttl}
+    The multicast time to live. Use the following options:
+
+    -  1 if IP multicast datagrams will not be forwarded beyond a single
+       subnetwork
+    -  2 to allow delivery of IP multicast datagrams to more than one
+       subnet (if there are one or more multicast routers attached to
+       the first hop subnet).
+
+Examples
+========
+
+The following example configuration is for three nodes: the local host,
+one parent, and one sibling.
+
+::
+
+    localhost:0.0.0.0:3:8080:3130:0:0.0.0.0:1
+    host1:123.12.1.23:1:8080:3131:0:0.0.0.0:1
+    host2:123.12.1.24:2:8080:3131:0:0.0.0.0:1
+
diff --git a/doc/reference/configuration/index.en.rst b/doc/reference/configuration/index.en.rst
new file mode 100644
index 00000000..0b58eea8
--- /dev/null
+++ b/doc/reference/configuration/index.en.rst
@@ -0,0 +1,43 @@
+
+.. _configuration-file-reference:
+
+Configuration File Reference
+****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+.. toctree::
+  :maxdepth: 2
+
+  cache.config.en
+  congestion.config.en
+  hosting.config.en
+  icp.config.en
+  ip_allow.config.en
+  log_hosts.config.en
+  logs_xml.config.en
+  parent.config.en
+  plugin.config.en
+  records.config.en
+  remap.config.en
+  splitdns.config.en
+  ssl_multicert.config.en
+  storage.config.en
+  update.config.en
+  volume.config.en
diff --git a/doc/reference/configuration/ip_allow.config.en.rst b/doc/reference/configuration/ip_allow.config.en.rst
new file mode 100644
index 00000000..857e3e69
--- /dev/null
+++ b/doc/reference/configuration/ip_allow.config.en.rst
@@ -0,0 +1,80 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+===============
+ip_allow.config
+===============
+
+.. configfile:: ip_allow.config
+
+The :file:`ip_allow.config` file controls client access to the Traffic
+Server proxy cache. You can specify ranges of IP addresses that are
+allowed to use the Traffic Server as a web proxy cache. After you modify
+the :file:`ip_allow.config` file, navigate to the Traffic Server bin
+directory and run the :option:`traffic_line -x` command to apply changes. When
+you apply the changes to a node in a cluster, Traffic Server
+automatically applies the changes to all other nodes in the cluster.
+
+Format
+======
+
+Each line in the :file:`ip_allow.config` file must have the following
+format::
+
+    src_ip=<range of IP addresses> action=<action> [method=<list of methods separated by '|'>]
+
+where src_ip is the IP address or range of IP addresses of the
+client(s). The action ``ip_allow`` enables the specified client(s) to
+access the Traffic Server proxy cache, and ``ip_deny`` denies the
+specified client(s) to access the Traffic Server proxy cache. Multiple
+method keywords can be specified (method=GET method=HEAD), or multiple
+methods can be separated by an '\|' (method=GET\|HEAD). The method
+keyword is optional and it is defaulted to ALL. This supports ANY string
+as the HTTP method, meaning no validation is done to check wether it
+is a valid HTTP method. This allows you to create filters for any method
+that your origin may require, this is especially useful if you use newer
+methods that aren't know to trafficserver (such as PROPFIND) or if your
+origin uses an http-ish protocol.
+
+By default, the :file:`ip_allow.config` file contains the following lines,
+which allows all methods to localhost to access the Traffic Server proxy
+cache and denies PUSH, PURGE and DELETE to all IPs (note this allows all
+other methods to all IPs)::
+
+    src_ip=127.0.0.1                                  action=ip_allow method=ALL
+    src_ip=::1                                        action=ip_allow method=ALL
+    src_ip=0.0.0.0-255.255.255.255                    action=ip_deny  method=PUSH|PURGE|DELETE
+    src_ip=::-ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff action=ip_deny  method=PUSH|PURGE|DELETE
+
+Examples
+========
+
+The following example enables all clients to access the Traffic Server
+proxy cache::
+
+    src_ip=0.0.0.0-255.255.255.255 action=ip_allow
+
+The following example allows all clients on a specific subnet to access
+the Traffic Server proxy cache::
+
+    src_ip=123.12.3.000-123.12.3.123 action=ip_allow
+
+The following example denies all clients on a specific subnet to access
+the Traffic Server proxy cache::
+
+    src_ip=123.45.6.0-123.45.6.123 action=ip_deny
+
diff --git a/doc/reference/configuration/log_hosts.config.en.rst b/doc/reference/configuration/log_hosts.config.en.rst
new file mode 100644
index 00000000..dcb74e96
--- /dev/null
+++ b/doc/reference/configuration/log_hosts.config.en.rst
@@ -0,0 +1,66 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+================
+log_hosts.config
+================
+
+.. configfile:: log_hosts.config
+
+To record HTTP transactions for different origin servers in separate log
+files, you must list each origin server hostname in the
+:file:`log_hosts.config` file. In addition, you must enable the `HTTP Host
+Log Splitting <../working-log-files#HTTPHostLogSplitting>`_ option. You
+should use the same :file:`log_hosts.config` file on every Traffic Server
+node in your cluster. After you modify the :file:`log_hosts.config` file,
+run the :option:`traffic_line -x` command to apply the changes.
+When you apply the changes to a node in a cluster, Traffic Server automatically applies the
+changes to all other nodes in the cluster.
+
+Format
+======
+
+Each line in the :file:`log_hosts.config` file has the following format::
+
+    hostname
+
+where ``hostname`` is the hostname of the origin server.
+
+.. hint::
+
+    You can specify keywords in the :file:`log_hosts.config` file to
+    record all transactions from origin servers with the specified keyword
+    in their names in a separate log file. See the example below.
+
+Examples
+========
+
+The following example configures Traffic Server to create separate log
+files containing all HTTP transactions for the origin servers
+``webserver1``, ``webserver2``, and ``webserver3``::
+
+    webserver1
+    webserver2
+    webserver3
+
+The following example records all HTTP transactions from origin servers
+that contain ``sports`` in their names. For example:
+``sports.yahoo.com`` and ``www.foxsports.com`` in a log file called
+``squid-sport.log`` (the Squid format is enabled)::
+
+    sports
+
diff --git a/doc/reference/configuration/logs_xml.config.en.rst b/doc/reference/configuration/logs_xml.config.en.rst
new file mode 100644
index 00000000..ddf4caea
--- /dev/null
+++ b/doc/reference/configuration/logs_xml.config.en.rst
@@ -0,0 +1,391 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+===============
+logs_xml.config
+===============
+
+.. configfile:: logs_xml.config
+
+The :file:`logs_xml.config` file defines the custom log file formats,
+filters, and processing options. The format of this file is modeled
+after XML, the Extensible Markup Language.
+
+Format
+======
+
+The :file:`logs_xml.config` file contains the specifications below:
+
+-  ``LogFormat`` specifies the fields to be gathered from each protocol
+   event access.
+-  ``LogFilter`` specifies the filters that are used to include or
+   exclude certain entries being logged based on the value of a field
+   within that entry.
+-  ``LogObject`` specifies an object that contains a particular format,
+   a local filename, filters, and collation servers.
+
+The :file:`logs_xml.config` file ignores extra white space, blank lines, and
+all comments.
+
+.. _LogFormat:
+
+LogFormat
+=========
+
+The following list shows ``LogFormat`` specifications.
+
+.. _LogFormat-name:
+
+``<Name = "valid_format_name"/>``
+    Required
+    Valid format names include any name except ``squid``, ``common``,
+    ``extended``, or ``extended2``, which are pre-defined formats. There
+    is no default for this tag.
+
+.. _LogFormat-Format:
+
+``<Format = "valid_format_specification"/>``
+    Required
+    A valid format specification is a printf-style string describing
+    each log entry when formatted for ASCII output.
+
+    The printf-style could accept Oct/Hex escape representation:
+
+    -  ``\abc`` is Oct escape sequence, a,b,c should be one of [0-9], and
+       (a*8^2 + b*8 + c) should be greater than 0 and less than 255.
+    -  ``\xab`` is Hex escape sequence, a,b should be one of [0-9, a-f, A-F],
+       and (a*16 + b) should be greater than 0 and less than 255.
+
+    Use ``%<`` ``field`` ``>`` as a placeholder for valid field names. For more
+    information, refer to :ref:`custom-logging-fields`.
+
+    The specified field can be one of the following types:
+
+    Simple. For example: ``%<cqu>``
+    A field within a container, such as an HTTP header or a statistic.
+    Fields of this type have the syntax: ::
+
+         %<{ field } container>
+
+    Aggregates, such as ``COUNT``, ``SUM``, ``AVG``, ``FIRST``,
+    ``LAST``. Fields of this type have the syntax: ``%<operator (``
+    ``field`` ``)>``
+
+.. note::
+
+    You cannot create a format specification that contains both aggregate operators and regular fields.
+
+``<Interval = "aggregate_interval_secs"/>``
+    Optional
+    Use this tag when the format contains aggregate operators. The value
+    "``aggregate_interval_secs``\" represents the number of seconds
+    between individual aggregate values being produced.
+
+    The valid set of aggregate operators are:
+
+    -  COUNT
+    -  SUM
+    -  AVG
+    -  FIRST
+    -  LAST
+
+.. _LogFilters:
+
+LogFilters
+==========
+
+The following list shows the ``LogFilter`` specifications.
+
+``<Name = "valid_filter_name"/>``
+    Required
+    All filters must be uniquely named.
+
+``<Condition = "valid_log_field valid_operator valid_comparison_value"/>``
+    Required
+    This field contains the following elements:
+
+    ``valid_log_field`` - the field that will be compared against
+    the given value. For more information, refer to :ref:`logging-format-cross-reference`.
+
+    ``valid_operator_field`` - any one of the following: ``MATCH``,
+    ``CASE_INSENSITIVE_MATCH``, ``CONTAIN``,
+    ``CASE_INSENSITIVE_CONTAIN``.
+
+    -  ``MATCH`` is true if the field and value are identical
+       (case-sensitive).
+    -  ``CASE_INSENSITIVE_MATCH`` is similar to ``MATCH``, except that
+       it is case-insensitive.
+    -  ``CONTAIN`` is true if the field contains the value (the value is
+       a substring of the field).
+    -  ``CASE_INSENSITIVE_CONTAIN`` is a case-insensitive version of
+       ``CONTAIN``.
+
+    ``valid_comparison_value`` - any string or integer matching the
+    field type. For integer values, all of the operators are equivalent
+    and mean that the field must be equal to the specified value.
+
+.. note::
+
+    There are no negative comparison operators. If you want to
+    specify a negative condition, then use the ``Action`` field to
+    ``REJECT`` the record.
+
+``<Action = "valid_action_field"/>``
+    Required: ``ACCEPT`` or ``REJECT`` or ``WIPE_FIELD_VALUE``.
+    ACCEPT or REJECT instructs Traffic Server to either accept or reject records
+    that satisfy the filter condition. WIPE_FIELD_VALUE wipes out
+    the values of the query params in the url fields specified in the Condition.
+
+NOTES: 1. WIPE_FIELD_VALUE action is only applied to the parameters in the query part.
+       2. Multiple parameters can be listed in a single WIPE_FIELD_VALUE filter
+       3. If the same parameter appears more than once in the query part , only
+          the value of the first occurance is wiped
+
+.. _LogObject:
+
+LogObject
+=========
+
+The following list shows the ``LogObject`` specifications.
+
+``<Format = "valid_format_name"/>``
+    Required
+    Valid format names include the predefined logging formats:
+    ``squid``, ``common``, ``extended``, and ``extended2``, as well as
+    any previously-defined custom log formats. There is no default for
+    this tag.
+
+``<Filename = "file_name"/>``
+    Required
+    The filename to which the given log file is written on the local
+    file system or on a remote collation server. No local log file will
+    be created if you fail to specify this tag. All filenames are
+    relative to the default logging directory.
+
+    If the name does not contain an extension (for example, ``squid``),
+    then the extension ``.log`` is automatically appended to it for
+    ASCII logs and ``.blog`` for binary logs (refer to :ref:`Mode =
+    "valid_logging_mode" <LogObject-Mode>`).
+
+    If you do not want an extension to be added, then end the filename
+    with a single (.) dot (for example: ``squid.`` ).
+
+.. _LogObject-Mode:
+
+``<Mode = "valid_logging_mode"/>``
+    Optional
+    Valid logging modes include ``ascii`` , ``binary`` , and
+    ``ascii_pipe`` . The default is ``ascii`` .
+
+    -  Use ``ascii`` to create event log files in human-readable form
+       (plain ASCII).
+    -  Use ``binary`` to create event log files in binary format. Binary
+       log files generate lower system overhead and occupy less space on
+       the disk (depending on the information being logged). You must
+       use the :program:`traffic_logcat` utility to translate binary log files to ASCII
+       format before you can read them.
+    -  Use ``ascii_pipe`` to write log entries to a UNIX named pipe (a
+       buffer in memory). Other processes can then read the data using
+       standard I/O functions. The advantage of using this option is
+       that Traffic Server does not have to write to disk, which frees
+       disk space and bandwidth for other tasks. In addition, writing to
+       a pipe does not stop when logging space is exhausted because the
+       pipe does not use disk space.
+
+    If you are using a collation server, then the log is written to a
+    pipe on the collation server. A local pipe is created even before a
+    transaction is processed, so you can see the pipe right after
+    Traffic Server starts. Pipes on a collation server, however, *are*
+    created when Traffic Server starts.
+
+``<Filters = "list_of_valid_filter_names"/>``
+    Optional
+    A comma-separated list of names of any previously-defined log
+    filters. If more than one filter is specified, then all filters must
+    accept a record for the record to be logged.
+
+``<Protocols = "list_of_valid_protocols"/>``
+    Optional
+    A comma-separated list of the protocols this object should log.
+    Valid protocol names for this release are ``HTTP`` (FTP is
+    deprecated).
+
+``<ServerHosts = "list_of_valid_servers"/>``
+    Optional
+    A comma-separated list of valid hostnames.This tag indicates that
+    only entries from the named servers will be included in the file.
+
+.. _logs-xml-logobject-collationhost:
+
+``<CollationHosts = "list_of_valid_hostnames:port|failover hosts"/>``
+    Optional
+    A comma-separated list of collation servers (with pipe delimited 
+    failover servers) to which all log entries (for this object) are 
+    forwarded. Collation servers can be specified by name or IP address. 
+    Specify the collation port with a colon after the name. For example, 
+    in ``host1:5000|failhostA:5000|failhostB:6000, host2:6000`` logs 
+    would be sent to host1 and host2, with failhostA and failhostB 
+    acting as failover hosts for host1. When host1 disconnects, 
+    logs would be sent to failhostA. If failhostA disconnects, log 
+    entries would be sent to failhostB until host1 or failhostA comes 
+    back. Logs would also be sent to host2.
+
+``<Header = "header"/>``
+    Optional
+    The header text you want the log files to contain. The header text
+    appears at the beginning of the log file, just before the first
+    record.
+
+``<RollingEnabled = "truth value"/>``
+    Optional
+    Enables or disables log file rolling for the ``LogObject``. This
+    setting overrides the value for the
+    :ts:cv:`proxy.config.log.rolling_enabled` variable in the
+    :file:`records.config` file. Set *truth value* to one of the
+    following values:
+
+    -  ``0`` to disable rolling for this particular ``LogObject``.
+    -  ``1`` to roll log files at specific intervals during the day (you
+       specify time intervals with the ``RollingIntervalSec`` and
+       ``RollingOffsetHr`` fields).
+    -  ``2`` to roll log files when they reach a certain size (you
+       specify the size with the ``RollingSizeMb`` field).
+    -  ``3`` to roll log files at specific intervals during the day or
+       when they reach a certain size (whichever occurs first).
+    -  ``4`` to roll log files at specific intervals during the day when
+       log files reach a specific size (at a specified time if the file
+       is of the specified size).
+
+.. XXX this is confusing ^ really, why is it a "truth value" but then it's 5 different integer values that means varias strange things?
+
+``<RollingIntervalSec = "seconds"/>``
+    Optional
+    The seconds between log file rolling for the ``LogObject``; enables
+    you to specify different rolling intervals for different
+    ``LogObjects``.
+
+    This setting overrides the value for
+    :ts:cv:`proxy.config.log.rolling_interval_sec` in the
+    :file:`records.config` file.
+
+``<RollingOffsetHr = "hour"/>``
+    Optional
+    Specifies an hour (from 0 to 23) at which rolling is guaranteed to
+    align. Rolling might start before then, but a rolled file will be
+    produced only at that time. The impact of this setting is only
+    noticeable if the rolling interval is larger than one hour. This
+    setting overrides the configuration setting for
+    :ts:cv:`proxy.config.log.rolling_offset_hr` in the :file:`records.config`
+    file.
+
+``<RollingSizeMb = "size_in_MB"/>``
+    Optional
+    The size at which log files are rolled.
+
+Examples
+========
+
+The following is an example of a ``LogFormat`` specification that
+collects information using three common fields: ::
+
+         <LogFormat>
+             <Name="minimal"/>
+             <Format = "%<chi> : %<cqu> : %<pssc>"/>
+         </LogFormat>
+
+The following is an example of a ``LogFormat`` specification that
+uses aggregate operators: ::
+
+         <LogFormat>
+             <Name = "summary"/>
+             <Format = "%<LAST(cqts)> : %<COUNT(*)> : %<SUM(psql)>"/>
+             <Interval = "10"/>
+         </LogFormat>
+
+The following is an example of a ``LogFilter`` that will cause only
+``REFRESH_HIT`` entries to be logged: ::
+
+         <LogFilter>
+              <Name = "only_refresh_hits"/>
+              <Action = "ACCEPT"/>
+              <Condition = "%<pssc> MATCH REFRESH_HIT"/>
+         </LogFilter>
+
+.. note::
+
+    When specifying the field in the filter condition, you can
+    omit the ``%<>``. This means that the filter below is equivalent to the
+    example directly above: ::
+
+         <LogFilter>
+             <Name = "only_refresh_hits"/>
+             <Action = "ACCEPT"/>
+             <Condition = "pssc MATCH REFRESH_HIT"/>
+         </LogFilter>
+
+The following is an example of a ``LogFilter`` that will cause the value of
+passwd field be wiped in cquc
+
+<LogFilter>
+    <Name = "wipe_password"/>
+    <Condition = "cquc CONTAIN passwd"/>
+    <Action = "WIPE_FIELD_VALUE"/>
+</LogFilter>
+
+The following is an example of a ``LogObject`` specification that
+creates a local log file for the minimal format defined earlier. The log
+filename will be ``minimal.log`` because this is an ASCII log file (the
+default).::
+
+         <LogObject>
+             <Format = "minimal"/>
+             <Filename = "minimal"/>
+         </LogObject>
+
+The following is an example of a ``LogObject`` specification that
+includes only HTTP requests served by hosts in the domain
+``company.com`` or by the specific server ``server.somewhere.com``. Log
+entries are sent to port 4000 of the collation host ``logs.company.com``
+and to port 5000 of the collation host ``209.131.52.129.`` ::
+
+         <LogObject>
+              <Format = "minimal"/>
+              <Filename = "minimal"/>
+              <ServerHosts = "company.com,server.somewhere.com"/>
+              <Protocols = "http"/>
+              <CollationHosts = "logs.company.com:4000,209.131.52.129:5000"/>
+         </LogObject>
+
+.. _WELF:
+
+WELF
+====
+
+Traffic Server supports WELF (WebTrends Enhanced Log Format) so you can
+analyze Traffic Server log files with WebTrends reporting tools. A
+predefined ``<LogFormat>`` that is compatible with WELF is provided in
+the :file:`logs_xml.config` file (shown below). To create a WELF format log
+file, create a ``<LogObject>`` that uses this predefined format. ::
+
+         <LogFormat>
+             <Name = "welf"/>
+             <Format = "id=firewall time=\"%<cqtd> %<cqtt>\" fw=%<phn> pri=6
+                proto=%<cqus> duration=%<ttmsf> sent=%<psql> rcvd=%<cqhl>
+                src=%<chi> dst=%<shi> dstname=%<shn> user=%<caun> op=%<cqhm>
+                arg=\"%<cqup>\" result=%<pssc> ref=\"%<{Referer}cqh>\"
+                agent=\"%<{user-agent}cqh>\" cache=%<crc>"/>
+         </LogFormat>
diff --git a/doc/reference/configuration/parent.config.en.rst b/doc/reference/configuration/parent.config.en.rst
new file mode 100644
index 00000000..10e7f02c
--- /dev/null
+++ b/doc/reference/configuration/parent.config.en.rst
@@ -0,0 +1,165 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+=============
+parent.config
+=============
+
+.. configfile:: parent.config
+
+The :file:`parent.config` file identifies the parent proxies used in an
+cache hierarchy. Use this file to perform the following configuration:
+
+-  Set up parent cache hierarchies, with multiple parents and parent
+   failover
+-  Configure selected URL requests to bypass parent proxies
+
+Traffic Server uses the :file:`parent.config` file only when the parent
+caching option is enabled (refer to :ref:`configuring-traffic-server-to-use-a-parent-cache`).
+
+After you modify the :file:`parent.config` file, run the :option:`traffic_line -x`
+command to apply your changes. When you apply the changes to one node in
+a cluster, Traffic Server automatically applies the changes to all other
+nodes in the cluster.
+
+Format
+======
+
+Each line in the :file:`parent.config` file must contain a parent caching
+rule. Traffic Server recognizes three space-delimited tags: ::
+
+    primary_destination=value secondary_specifier=value  action=value
+
+The following list shows the possible primary destinations and their
+allowed values.
+
+.. _parent-config-format-dest-domain:
+
+``dest_domain``
+    A requested domain name.
+
+.. _parent-config-format-dest-host:
+
+``dest_host``
+    A requested hostname.
+
+.. _parent-config-format-dest-ip:
+
+``dest_ip``
+    A requested IP address or range of IP addresses separated by a dash (-).
+
+.. _parent-config-format-url-regex:
+
+``url_regex``
+    A regular expression (regex) to be found in a URL
+
+The secondary specifiers are optional in the :file:`parent.config` file. The
+following list shows the possible secondary specifiers and their allowed
+values.
+
+.. _parent-config-format-port:
+
+``port``
+    A requested URL port.
+
+.. _parent-config-format-scheme:
+
+``scheme``
+    A request URL protocol: ``http`` or ``https``.
+
+.. _parent-config-format-prefix:
+
+``prefix``
+    A prefix in the path part of a URL.
+
+.. _parent-config-format-suffix:
+
+``suffix``
+    A file suffix in the URL.
+
+.. _parent-config-format-method:
+
+``method``
+    A request URL method. It can be one of the following:
+
+    -  get
+    -  post
+    -  put
+    -  trace
+
+.. _parent-config-format-time:
+
+``time``
+    A time range, such as 08:00-14:00, during which the parent cache is
+    used to serve requests.
+
+.. _parent-config-format-src-ip:
+
+``src_ip``
+    A client IP address.
+
+The following list shows the possible actions and their allowed values.
+
+.. _parent-config-format-parent:
+
+``parent``
+    An ordered list of parent servers. If the request cannot be handled
+    by the last parent server in the list, then it will be routed to the
+    origin server. You can specify either a hostname or an IP address,
+    but; you must specify the port number.
+
+.. _parent-config-format-round-robin:
+
+``round_robin``
+    One of the following values:
+
+    -  ``true`` - Traffic Server goes through the parent cache list in a
+       round robin-based on client IP address.
+    -  ``strict`` - Traffic Server machines serve requests strictly in
+       turn. For example: machine ``proxy1`` serves the first request,
+       ``proxy2`` serves the second request, and so on.
+    -  ``false`` - Round robin selection does not occur.
+
+.. _parent-config-format-go-direct:
+
+``go_direct``
+    One of the following values:
+
+    -  ``true`` - requests bypass parent hierarchies and go directly to
+       the origin server.
+    -  ``false`` - requests do not bypass parent hierarchies.
+
+Examples
+========
+
+The following rule configures a parent cache hierarchy consisting of
+Traffic Server (which is the child) and two parents, ``p1.x.com`` and
+``p2.x.com``. Traffic Server forwards the requests it cannot serve to
+the parent servers ``p1.x.com`` and ``p2.x.com`` in a round-robin
+fashion::
+
+    round_robin=true
+    dest_domain=. method=get parent="p1.x.com:8080; p2.y.com:8080" round_robin=true
+
+The following rule configures Traffic Server to route all requests
+containing the regular expression ``politics`` and the path
+``/viewpoint`` directly to the origin server (bypassing any parent
+hierarchies): ``url_regex=politics prefix=/viewpoint go_direct=true``
+
+Every line in the :file:`parent.config` file must contain either a
+``parent=`` or ``go_direct=`` directive.
+
diff --git a/doc/reference/configuration/plugin.config.en.rst b/doc/reference/configuration/plugin.config.en.rst
new file mode 100644
index 00000000..2402da33
--- /dev/null
+++ b/doc/reference/configuration/plugin.config.en.rst
@@ -0,0 +1,75 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+=============
+plugin.config
+=============
+
+.. configfile:: plugin.config
+
+Description
+===========
+
+The :file:`plugin.config` file controls run-time loadable plugins
+available to the Traffic Server, as well as their configuration.
+Plugins listed in this file are referred to as `global plugins`
+because they are always loaded and have global effect.  This is in
+contrast to plugins specified in :file:`remap.config`, whose effects
+are limited to the specific mapping rules they are applied to.
+
+Each configuration line consists of a path to an ``.so`` file. This
+path can either be absolute, or relative to the plugin directory
+(usually ``/usr/local/libexec/trafficserver``).  Failure to load a
+plugin is fatal, and will cause Traffic Server to abort. In general,
+it is not possible to know whether it is safe for the service to
+run without a particular plugin, since plugins can have arbitrary
+effects on caching and authorization policies.
+
+Plugins should only be listed once. The order in which the plugins
+are listed is also the order in which they are chained for request
+processing.
+
+An option list of whitespace-separated arguments may follow the
+plugin name. These are passed as an argument vector to the plugin's
+initialization function, :c:func:`TSPluginInit`. Arguments that begin
+with the ``$`` character designate Traffic Server configuration
+variables. These arguments will be replaced with the value of the
+corresponding configuration variable before the plugin is loaded.
+When using configuration variable expansion, note that most Traffic
+Server configuration can be changed. If a plugin requires the current
+value, it must obtain that using the management API.
+
+Examples
+========
+
+::
+
+     # Comments start with a '#' and continue to the end of the line
+     # Blank lines are ignored
+     #
+     # test-plugin.so arg1 arg2 arg3
+     #
+     plugins/iwx/iwx.so
+     plugins/abuse/abuse.so etc/trafficserver/abuse.config
+     plugins/icx/icx.so etc/trafficserver/icx.config $proxy.config.http.connect_attempts_timeout
+
+See also
+========
+
+:manpage:`TSAPI(3ts)`,
+:manpage:`TSPluginInit(3ts)`,
+:manpage:`remap.config(5)`
diff --git a/doc/reference/configuration/records.config.en.rst b/doc/reference/configuration/records.config.en.rst
new file mode 100644
index 00000000..4d720737
--- /dev/null
+++ b/doc/reference/configuration/records.config.en.rst
@@ -0,0 +1,2404 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+==============
+records.config
+==============
+
+.. configfile:: records.config
+
+The :file:`records.config` file (by default, located in 
+``/opt/trafficserver/etc/trafficserver/``) is a list of configurable variables used by
+the Traffic Server software. Many of the variables in the
+:file:`records.config` file are set automatically when you set configuration
+options in Traffic Line or Traffic Shell. After you modify the
+:file:`records.config` file,
+run the command :option:`traffic_line -x` to apply the changes.
+When you apply changes to one node in a cluster, Traffic Server
+automatically applies the changes to all other nodes in the cluster.
+
+Format
+======
+
+Each variable has the following format::
+
+   SCOPE variable_name DATATYPE variable_value
+
+where
+
+``SCOPE`` is related to clustering and is either ``CONFIG`` (all members of
+the cluster) or ``LOCAL`` (only the local machine)
+
+``DATATYPE`` is one of ``INT`` (integer), ``STRING`` (string), ``FLOAT``
+(floating point).
+:
+A variable marked as ``Deprecated`` is still functional but should be avoided
+as it may be removed in a future release without warning.
+
+A variable marked as ``Reloadable`` can be updated via the command::
+
+   traffic_line -x
+
+``INT`` type configurations are expressed as any normal integer,
+e.g. *32768*. They can also be expressed using more human readable values
+using standard prefixes, e.g. *32K*. The following prefixes are supported
+for all ``INT`` type configurations
+
+   - ``K`` Kilobytes (1024 bytes)
+   - ``M`` Megabytes (1024^2 or 1,048,576 bytes)
+   - ``G`` Gigabytes (1024^3 or 1,073,741,824 bytes)
+   - ``T`` Terabytes (1024^4 or 1,099,511,627,776 bytes)
+
+.. note::
+
+    Traffic Server currently writes back configurations to disk periodically,
+    and when doing so, will not preserve the prefixes.
+
+Examples
+========
+
+In the following example, the variable `proxy.config.proxy_name`_ is
+a ``STRING`` datatype with the value ``my_server``. This means that the
+name of the Traffic Server proxy is ``my_server``. ::
+
+   CONFIG proxy.config.proxy_name STRING my_server
+
+If the server name should be ``that_server`` the line would be ::
+
+   CONFIG proxy.config.proxy_name STRING that_server
+
+In the following example, the variable ``proxy.config.arm.enabled`` is
+a yes/no flag. A value of ``0`` (zero) disables the option; a value of
+``1`` enables the option. ::
+
+   CONFIG proxy.config.arm.enabled INT 0
+
+In the following example, the variable sets the cluster startup timeout
+to 10 seconds. ::
+
+   CONFIG proxy.config.cluster.startup_timeout INT 10
+
+The last examples configures a 64GB RAM cache, using a human readable
+prefix. ::
+
+   CONFIG proxy.config.cache.ram_cache.size INT 64G
+
+
+Environment Overrides
+=====================
+
+Every :file:`records.config` configuration variable can be overridden
+by a corresponding environment variable. This can be useful in
+situations where you need a static :file:`records.config` but still
+want to tweak one or two settings. The override variable is formed
+by converting the :file:`records.config` variable name to upper
+case, and replacing any dot separators with an underscore.
+
+Overriding a variable from the environment is permanent and will
+not be affected by future configuration changes made in
+:file:`records.config` or applied with :program:`traffic_line`.
+
+For example, we could override the `proxy.config.product_company`_ variable
+like this::
+
+   $ PROXY_CONFIG_PRODUCT_COMPANY=example traffic_cop &
+   $ traffic_line -r proxy.config.product_company
+
+.. _configuration-variables:
+
+Configuration Variables
+=======================
+
+The following list describes the configuration variables available in
+the :file:`records.config` file.
+
+System Variables
+----------------
+
+.. ts:cv:: CONFIG proxy.config.product_company STRING Apache Software Foundation
+
+   The name of the organization developing Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.product_vendor STRING Apache
+
+   The name of the vendor providing Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.product_name STRING Traffic Server
+
+   The name of the product.
+
+.. ts:cv:: CONFIG proxy.config.proxy_name STRING ``build_machine``
+   :reloadable:
+
+   The name of the Traffic Server node.
+
+.. ts:cv:: CONFIG proxy.config.bin_path STRING bin
+
+   The location of the Traffic Server ``bin`` directory.
+
+.. ts:cv:: CONFIG proxy.config.proxy_binary STRING traffic_server
+
+   The name of the executable that runs the :program:`traffic_server` process.
+
+.. ts:cv:: CONFIG proxy.config.proxy_binary_opts STRING -M
+
+   The command-line options for starting Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.manager_binary STRING traffic_manager
+
+   The name of the executable that runs the :program:`traffic_manager` process.
+
+.. ts:cv:: CONFIG proxy.config.env_prep STRING
+
+   The script executed before the :program:`traffic_manager` process spawns
+   the :program:`traffic_server` process.
+
+.. ts:cv:: CONFIG proxy.config.config_dir STRING etc/trafficserver
+
+   The directory that contains Traffic Server configuration files.
+   This is a read-only configuration option that contains the
+   ``SYSCONFDIR`` value specified at build time relative to the
+   installation prefix. The ``$TS_ROOT`` environment variable can
+   be used alter the installation prefix at run time.
+
+.. ts:cv:: CONFIG proxy.config.syslog_facility STRING LOG_DAEMON
+
+   The facility used to record system log files. Refer to :ref:`understanding-traffic-server-log-files`.
+
+.. ts:cv:: CONFIG proxy.config.cop.core_signal INT 0
+
+   The signal sent to :program:`traffic_cop`'s managed processes to stop them.
+
+A value of ``0`` means no signal will be sent.
+
+.. ts:cv:: CONFIG proxy.config.cop.linux_min_memfree_kb INT 0
+
+   The minimum amount of free memory space allowed before Traffic Server stops
+   the :program:`traffic_server` and :program:`traffic_manager` processes to 
+   prevent the system from hanging.
+
+.. ts:cv:: CONFIG proxy.config.cop.linux_min_swapfree_kb INT 0
+
+   The minimum amount of free swap space allowed before Traffic Server stops
+   the :program:`traffic_server` and :program:`traffic_manager` processes to 
+   prevent the system from hanging. This configuration variable applies if
+   swap is enabled in Linux 2.2 only. 
+
+.. ts:cv:: CONFIG proxy.config.output.logfile  STRING traffic.out
+
+   The name and location of the file that contains warnings, status messages, and error messages produced by the Traffic Server
+   processes. If no path is specified, then Traffic Server creates the file in its logging directory.
+
+.. ts:cv:: CONFIG proxy.config.snapshot_dir STRING snapshots
+
+   The directory in which Traffic Server stores configuration
+   snapshots on the local system. Unless you specify an absolute
+   path, this directory is located in the Traffic Server ``SYSCONFDIR``
+   directory.
+
+.. ts:cv:: CONFIG proxy.config.exec_thread.autoconfig INT 1
+
+   When enabled (the default, ``1``), Traffic Server scales threads according to the available CPU cores. See the config option below.
+
+.. ts:cv:: CONFIG proxy.config.exec_thread.autoconfig.scale FLOAT 1.5
+
+   Factor by which Traffic Server scales the number of threads. The multiplier is usually the number of available CPU cores. By default
+   this is scaling factor is ``1.5``.
+
+.. ts:cv:: CONFIG proxy.config.exec_thread.limit INT 2
+
+   *XXX* What does this do?
+
+.. ts:cv:: CONFIG proxy.config.accept_threads INT 1
+
+   When enabled (``1``), runs a separate thread for accept processing. If disabled (``0``), then only 1 thread can be created.
+
+.. ts:cv:: CONFIG proxy.config.thread.default.stacksize  INT 1048576
+
+   The new default thread stack size, for all threads. The original default is set at 1 MB.
+
+.. ts:cv:: CONFIG proxy.config.exec_thread.affinity INT 0
+
+   Bind threads to specific processing units.
+
+===== ====================
+Value Effect
+===== ====================
+0     assign threads to machine
+1     assign threads to NUMA nodes
+2     assign threads to sockets
+3     assign threads to cores
+4     assign threads to processing units
+===== ====================
+
+.. note::
+
+   This option only has an affect when Traffic Server has been compiled with ``--enable-hwloc``.
+
+.. ts:cv:: CONFIG proxy.config.system.file_max_pct FLOAT 0.9
+
+   Set the maximum number of file handles for the traffic_server process as a percentage of the the fs.file-max proc value in Linux. The default is 90%.
+
+Network
+=======
+
+.. ts:cv:: CONFIG proxy.config.net.connections_throttle INT 30000
+
+   The total number of client and origin server connections that the server
+   can handle simultaneously. This is in fact the max number of file
+   descriptors that the :program:`traffic_server` process can have open at any
+   given time. Roughly 10% of these connections are reserved for origin server
+   connections, i.e. from the default, only ~9,000 client connections can be
+   handled. This should be tuned according to your memory size, and expected
+   work load.
+
+.. ts:cv:: LOCAL proxy.local.incoming_ip_to_bind STRING 0.0.0.0 [::]
+
+   Controls the global default IP addresses to which to bind proxy server ports. The value is a space separated list of IP addresses, one per supported IP address family (currently IPv4 and IPv6).
+
+Unless explicitly specified in `proxy.config.http.server_ports`_ the server port will be bound to one of these addresses, selected by IP address family. The built in default is any address. This is used if no address for a family is specified. This setting is useful if most or all server ports should be bound to the same address.
+
+.. note::
+
+   This is ignored for inbound transparent server ports because they must be able to accept connections on arbitrary IP addresses.
+
+.. topic:: Example
+
+   Set the global default for IPv4 to ``192.168.101.18`` and leave the global default for IPv6 as any address.::
+
+      LOCAL proxy.local.incoming_ip_to_bind STRING 192.168.101.18
+
+.. topic:: Example
+
+   Set the global default for IPv4 to ``191.68.101.18`` and the global default for IPv6 to ``fc07:192:168:101::17``.::
+
+      LOCAL proxy.local.incoming_ip_to_bind STRING 192.168.101.18 [fc07:192:168:101::17]
+
+.. ts:cv:: LOCAL proxy.local.outgoing_ip_to_bind STRING 0.0.0.0 [::]
+
+   This controls the global default for the local IP address for outbound connections to origin servers. The value is a list of space separated IP addresses, one per supported IP address family (currently IPv4 and IPv6).
+
+   Unless explicitly specified in `proxy.config.http.server_ports`_ one of these addresses, selected by IP address family, will be used as the local address for outbound connections. This setting is useful if most or all of the server ports should use the same outbound IP addresses.
+
+.. note::
+
+   This is ignored for outbound transparent ports as the local outbound address will be the same as the client local address.
+
+.. topic:: Example
+
+   Set the default local outbound IP address for IPv4 connections to ``192.168.101.18``.::
+
+      LOCAL proxy.local.outgoing_ip_to_bind STRING 192.168.101.18
+
+.. topic:: Example
+
+   Set the default local outbound IP address to ``192.168.101.17`` for IPv4 and ``fc07:192:168:101::17`` for IPv6.::
+
+      LOCAL proxy.local.outgoing_ip_to_bind STRING 192.168.101.17 [fc07:192:168:101::17]
+
+Cluster
+=======
+
+.. ts:cv:: LOCAL proxy.local.cluster.type INT 3
+
+   Sets the clustering mode:
+
+===== ====================
+Value Effect
+===== ====================
+1     full-clustering mode
+2     management-only mode
+3     no clustering
+===== ====================
+
+.. ts:cv:: CONFIG proxy.config.cluster.ethernet_interface INT eth0
+
+The network interface to be used for cluster communication. This has to be
+identical on all members of a clsuter. ToDo: Is that reasonable ?? Should
+this be local"
+
+.. ts:cv:: CONFIG proxy.config.cluster.rsport INT 8088
+
+   The reliable service port. The reliable service port is used to send configuration information between the nodes in a cluster. All nodes
+   in a cluster must use the same reliable service port.
+
+.. ts:cv:: CONFIG proxy.config.cluster.threads INT 1
+
+   The number of threads for cluster communication. On heavy cluster, the number should be adjusted. It is recommend that take the thread
+   CPU usage as a reference when adjusting.
+
+.. ts:cv:: CONFIG proxy.config.clustger.ethernet_interface STRING
+
+   Set the interface to use for cluster communications.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.cluster_cache_local INT 0
+
+   This turns on the local caching of objects in cluster mode. The point of
+   this is to allow for popular or **hot** content to be cached on all nodes
+   in a cluster. Be aware that the primary way to configure this behavior is
+   via the :file:`cache.config` configuration file using
+   ``action=cluster-cache-local`` directives.
+
+   This particular :file:`records.config` configuration can be controlled per
+   transaction or per remap rule. As such, it augments the
+   :file:`cache.config` directives, since you can turn on the local caching
+   feature without complex regular expression matching.
+
+   This implies that turning this on in your global :file:`records.config` is
+   almost never what you want; instead, you want to use this either via
+   e.g. ``conf_remap.so`` overrides for a certain remap rule, or through a
+   custom plugin using the appropriate APIs.
+
+
+Local Manager
+=============
+
+.. ts:cv:: CONFIG proxy.config.lm.sem_id INT 11452
+
+   The semaphore ID for the local manager.
+
+.. ts:cv:: CONFIG proxy.config.admin.autoconf_port INT 8083
+
+   The autoconfiguration port.
+
+.. ts:cv:: CONFIG proxy.config.admin.number_config_bak INT 3
+
+   The maximum number of copies of rolled configuration files to keep.
+
+.. ts:cv:: CONFIG proxy.config.admin.user_id STRING nobody
+
+   Option used to specify who to run the :program:`traffic_server` process as; also used to specify ownership of config and log files.
+
+The nonprivileged user account designated to Traffic Server.
+
+As of version 2.1.1 if the user_id is prefixed with pound character (#) the remaining of the string is considered to be
+a `numeric user identifier <http://en.wikipedia.org/wiki/User_identifier>`_. If the value is set to ``#-1`` Traffic
+Server will not change the user during startup.
+
+Setting ``user_id`` to ``root`` or ``#0`` is now forbidden to
+increase security. Trying to do so, will cause the
+:program:`traffic_server` fatal failure. However there are two ways to
+bypass that restriction
+
+* Specify ``-DBIG_SECURITY_HOLE`` in ``CXXFLAGS`` during compilation.
+* Set the ``user_id=#-1`` and start trafficserver as root.
+
+Process Manager
+===============
+
+.. ts:cv:: CONFIG proxy.config.process_manager.mgmt_port  INT 8084
+
+   The port used for internal communication between the :program:`traffic_manager` and :program:`traffic_server` processes.
+
+Alarm Configuration
+===================
+
+.. ts:cv:: CONFIG proxy.config.alarm_email STRING
+   :reloadable:
+
+   The address to which the alarm script should send email.
+
+.. ts:cv:: CONFIG proxy.config.alarm.bin STRING example_alarm_bin.sh
+   :reloadable:
+
+   Name of the script file that can execute certain actions when
+   an alarm is signaled. The script is invoked with up to 4 arguments:
+
+       - the alarm message
+       - the value of :ts:cv:`proxy.config.product_name`
+       - the value of :ts:cv:`proxy.config.admin.user_id`
+       - the value of :ts:cv:`proxy.config.alarm_email`
+
+.. ts:cv:: CONFIG proxy.config.alarm.abs_path STRING NULL
+   :reloadable:
+
+   The absolute path to the directory containing the alarm script.
+   If this is not set, the script will be located relative to
+   :ts:cv:`proxy.config.bin_path`.
+
+.. ts:cv:: CONFIG proxy.config.alarm.script_runtime INT 5
+   :reloadable:
+
+   The number of seconds that Traffic Server allows the alarm script
+   to run before aborting it.
+
+HTTP Engine
+===========
+
+.. ts:cv:: CONFIG proxy.config.http.server_ports STRING 8080
+
+   Ports used for proxying HTTP traffic.
+
+This is a list, separated by space or comma, of :index:`port descriptors`. Each descriptor is a sequence of keywords and values separated by colons. Not all keywords have values, those that do are specifically noted. Keywords with values can have an optional '=' character separating the keyword and value. The case of keywords is ignored. The order of keywords is irrelevant but unspecified results may occur if incompatible options are used (noted below). Options without values are idempotent. Options with values use the last (right most) value specified, except for ``ip-out`` as detailed later.
+
+Quick reference chart.
+
+=========== =============== ========================================
+Name        Note            Definition
+=========== =============== ========================================
+*number*    **Required**    The local port.
+blind                       Blind (``CONNECT``) port.
+compress    **N/I**         Compressed. Not implemented.
+ipv4        **Default**     Bind to IPv4 address family.
+ipv6                        Bind to IPv6 address family.
+ip-in       **Value**       Local inbound IP address.
+ip-out      **Value**       Local outbound IP address.
+ip-resolve  **Value**       IP address resolution style.
+proto       **Value**       List of supported session protocols.
+ssl                         SSL terminated.
+tr-full                     Fully transparent (inbound and outbound)
+tr-in                       Inbound transparent.
+tr-out                      Outbound transparent.
+tr-pass                     Pass through enabled.
+=========== =============== ========================================
+
+*number*
+   Local IP port to bind. This is the port to which ATS clients will connect.
+
+blind
+   Accept only the ``CONNECT`` method on this port.
+
+   Not compatible with: ``tr-in``, ``ssl``.
+
+compress
+   Compress the connection. Retained only by inertia, should be considered "not implemented".
+
+ipv4
+   Use IPv4. This is the default and is included primarily for completeness. This forced if the ``ip-in`` option is used with an IPv4 address.
+
+ipv6
+   Use IPv6. This is forced if the ``ip-in`` option is used with an IPv6 address.
+
+ssl
+   Require SSL termination for inbound connections. SSL :ref:`must be configured <configuring-ssl-termination>` for this option to provide a functional server port.
+
+   Not compatible with: ``blind``.
+
+proto
+   Specify the :ref:`session level protocols <session-protocol>` supported. These should be
+   separated by semi-colons. For TLS proxy ports the default value is
+   all available protocols. For non-TLS proxy ports the default is HTTP
+   only. SPDY can be enabled on non-TLS proxy ports but that must be done explicitly.
+
+tr-full
+   Fully transparent. This is a convenience option and is identical to specifying both ``tr-in`` and ``tr-out``.
+
+   Not compatible with: Any option not compatible with ``tr-in`` or ``tr-out``.
+
+tr-in
+   Inbound transparent. The proxy port will accept connections to any IP address on the port. To have IPv6 inbound transparent you must use this and the ``ipv6`` option. This overrides :ts:cv:`proxy.local.incoming_ip_to_bind` for this port.
+
+   Not compatible with: ``ip-in``, ``blind``
+
+tr-out
+   Outbound transparent. If ATS connects to an origin server for a transaction on this port, it will use the client's address as its local address. This overrides :ts:cv:`proxy.local.outgoing_ip_to_bind` for this port.
+
+   Not compatible with: ``ip-out``, ``ip-resolve``
+
+tr-pass
+   Transparent pass through. This option is useful only for inbound transparent proxy ports. If the parsing of the expected HTTP header fails, then the transaction is switched to a blind tunnel instead of generating an error response to the client. It effectively enables :ts:cv:`proxy.config.http.use_client_target_addr` for the transaction as there is no other place to obtain the origin server address.
+
+ip-in
+   Set the local IP address for the port. This is the address to which clients will connect. This forces the IP address family for the port. The ``ipv4`` or ``ipv6`` can be used but it is optional and is an error for it to disagree with the IP address family of this value. An IPv6 address **must** be enclosed in square brackets. If this option is omitted :ts:cv:`proxy.local.incoming_ip_to_bind` is used.
+
+   Not compatible with: ``tr-in``.
+
+ip-out
+   Set the local IP address for outbound connections. This is the address used by ATS locally when it connects to an origin server for transactions on this port. If this is omitted :ts:cv:`proxy.local.outgoing_ip_to_bind` is used.
+
+   This option can used multiple times, once for each IP address family. The address used is selected by the IP address family of the origin server address.
+
+   Not compatible with: ``tr-out``.
+
+ip-resolve
+   Set the :ts:cv:`host resolution style <proxy.config.hostdb.ip_resolve>` for transactions on this proxy port.
+
+   Not compatible with: ``tr-out`` - this option requires a value of ``client;none`` which is forced and should not be explicitly specified.
+
+.. topic:: Example
+
+   Listen on port 80 on any address for IPv4 and IPv6.::
+
+      80 80:ipv6
+
+.. topic:: Example
+
+   Listen transparently on any IPv4 address on port 8080, and
+   transparently on port 8080 on local address ``fc01:10:10:1::1``
+   (which implies ``ipv6``).::
+
+      IPv4:tr-FULL:8080 TR-full:IP-in=[fc02:10:10:1::1]:8080
+
+.. topic:: Example
+
+   Listen on port 8080 for IPv6, fully transparent. Set up an SSL port on 443. These ports will use the IP address from :ts:cv:`proxy.local.incoming_ip_to_bind`.  Listen on IP address ``192.168.17.1``, port 80, IPv4, and connect to origin servers using the local address ``10.10.10.1`` for IPv4 and ``fc01:10:10:1::1`` for IPv6.::
+
+      8080:ipv6:tr-full 443:ssl ip-in=192.168.17.1:80:ip-out=[fc01:10:10:1::1]:ip-out=10.10.10.1
+
+.. topic:: Example
+
+   Listen on port 9090 for TSL enabled SPDY or HTTP connections, accept no other session protocols.::
+
+      9090:proto=spdy;http:ssl
+
+.. ts:cv:: CONFIG proxy.config.http.connect_ports STRING 443 563
+
+   The range of origin server ports that can be used for tunneling via ``CONNECT``.
+
+Traffic Server allows tunnels only to the specified ports.
+Supports both wildcards ('\*') and ranges ("0-1023").
+
+.. note::
+
+   These are the ports on the *origin server*, not Traffic Server :ts:cv:`proxy ports <proxy.config.http.server_ports>`.
+
+.. ts:cv:: CONFIG proxy.config.http.insert_request_via_str INT 1
+   :reloadable:
+
+   Set how the ``Via`` field is handled on a request to the origin server.
+
+===== ============================================
+Value Effect
+===== ============================================
+0     Do not modify / set this via header
+1     Update the via, with normal verbosity
+2     Update the via, with higher verbosity
+3     Update the via, with highest verbosity
+===== ============================================
+
+.. note::
+
+   The ``Via`` header string can be decoded with the `Via Decoder Ring <http://trafficserver.apache.org/tools/via>`_.
+
+.. ts:cv:: CONFIG proxy.config.http.insert_response_via_str INT 0
+   :reloadable:
+
+   Set how the ``Via`` field is handled on the response to the client.
+
+===== ============================================
+Value Effect
+===== ============================================
+0     Do not modify / set this via header
+1     Update the via, with normal verbosity
+2     Update the via, with higher verbosity
+3     Update the via, with highest verbosity
+===== ============================================
+
+.. note::
+
+   The ``Via`` header string can be decoded with the `Via Decoder Ring <http://trafficserver.apache.org/tools/via>`_.
+
+.. ts:cv:: CONFIG proxy.config.http.response_server_enabled INT 1
+   :reloadable:
+
+   You can specify one of the following:
+
+   -  ``0`` no Server: header is added to the response.
+   -  ``1`` the Server: header is added (see string below).
+   -  ``2`` the Server: header is added only if the response from rigin does not have one already.
+
+.. ts:cv:: CONFIG proxy.config.http.insert_age_in_response INT 1
+   :reloadable:
+
+   This option specifies whether Traffic Server should insert an ``Age`` header in the response. The Age field value is the cache's
+   estimate of the amount of time since the response was generated or revalidated by the origin server.
+
+   -  ``0`` no ``Age`` header is added
+   -  ``1`` the ``Age`` header is added
+
+.. ts:cv:: CONFIG proxy.config.http.response_server_str STRING ATS/
+   :reloadable:
+
+   The Server: string that ATS will insert in a response header (if requested, see above). Note that the current version number is
+   always appended to this string.
+
+.. ts:cv:: CONFIG proxy.config.http.enable_url_expandomatic INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) ``.com`` domain expansion. This configures the Traffic Server to resolve unqualified hostnames by
+   prepending with ``www.`` and appending with ``.com`` before redirecting to the expanded address. For example: if a client makes
+   a request to ``host``, then Traffic Server redirects the request to ``www.host.com``.
+
+.. ts:cv:: CONFIG proxy.config.http.chunking_enabled INT 1
+   :reloadable:
+
+   Specifies whether Traffic Sever can generate a chunked response:
+
+   -  ``0`` Never
+   -  ``1`` Always
+   -  ``2`` Generate a chunked response if the server has returned HTTP/1.1 before
+   -  ``3`` = Generate a chunked response if the client request is HTTP/1.1 and the origin server has returned HTTP/1.1 before
+
+   .. note::
+
+       If HTTP/1.1 is used, then Traffic Server can use
+       keep-alive connections with pipelining to origin servers. If
+       HTTP/0.9 is used, then Traffic Server does not use ``keep-alive``
+       connections to origin servers. If HTTP/1.0 is used, then Traffic
+       Server can use ``keep-alive`` connections without pipelining to
+       origin servers.
+
+.. ts:cv:: CONFIG proxy.config.http.share_server_sessions INT 2
+   :deprecated:
+
+   Enables (``1``) or disables (``0``) the reuse of server sessions. The
+   default (``2``) is similar to enabled, except it creates a server session
+   pool per network thread. This has the best performance characteristics.
+
+.. ts:cv:: CONFIG proxy.config.http.server_session_sharing.match STRING both
+
+   Enable and set the ability to re-use server connections across client connections. The valid values are
+
+   none
+      Do not match, do not re-use server sessions.
+
+   ip
+      Re-use server sessions, check only that the IP address and port of the origin server matches.
+
+   host
+      Re-use server sessions, check only that the fully qualified domain name matches.
+
+   both
+      Re-use server sessions, but only if the IP address and fully qualified domain name match.
+
+   It is strongly recommended to use either *none* or *both* for this value unless you have a specific need to use *ip*
+   or *host*. The most common reason is virtual hosts that share an IP address in which case performance can be enhanced
+   if those sessions can be re-used. However, not all web servers support requests for different virtual hosts on the
+   same connection so use with caution.
+
+.. ts:cv:: CONFIG proxy.config.http.server_session_sharing.pool STRING thread
+
+   Control the scope of server session re-use if it is enabled by :ts:cv:`proxy.config.http.server_session_sharing.match`. The valid values are
+
+   global
+      Re-use sessions from a global pool of all server sessions.
+
+   thread
+      Re-use sessions from a per-thread pool.
+
+.. ts:cv:: CONFIG proxy.config.http.record_heartbeat INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) :program:`traffic_cop` heartbeat ogging.
+
+.. ts:cv:: CONFIG proxy.config.http.use_client_target_addr  INT 0
+
+   For fully transparent ports use the same origin server address as the client.
+
+This option causes Traffic Server to avoid where possible doing DNS
+lookups in forward transparent proxy mode. The option is only
+effective if the following three conditions are true -
+
+*  Traffic Server is in forward proxy mode.
+*  The proxy port is inbound transparent.
+*  The target URL has not been modified by either remapping or a plugin.
+
+If any of these conditions are not true, then normal DNS processing
+is done for the connection.
+
+If all of these conditions are met, then the origin server IP
+address is retrieved from the original client connection, rather
+than through HostDB or DNS lookup. In effect, client DNS resolution
+is used instead of Traffic Server DNS.
+
+This can be used to be a little more efficient (looking up the
+target once by the client rather than by both the client and Traffic
+Server) but the primary use is when client DNS resolution can differ
+from that of Traffic Server. Two known uses cases are:
+
+#. Embedded IP addresses in a protocol with DNS load sharing. In
+   this case, even though Traffic Server and the client both make
+   the same request to the same DNS resolver chain, they may get
+   different origin server addresses. If the address is embedded in
+   the protocol then the overall exchange will fail. One current
+   example is Microsoft Windows update, which presumably embeds the
+   address as a security measure.
+
+#. The client has access to local DNS zone information which is not
+   available to Traffic Server. There are corporate nets with local
+   DNS information for internal servers which, by design, is not
+   propagated outside the core corporate network. Depending a
+   network topology it can be the case that Traffic Server can
+   access the servers by IP address but cannot resolve such
+   addresses by name. In such as case the client supplied target
+   address must be used.
+
+This solution must be considered interim. In the longer term, it
+should be possible to arrange for much finer grained control of DNS
+lookup so that wildcard domain can be set to use Traffic Server or
+client resolution. In both known use cases, marking specific domains
+as client determined (rather than a single global switch) would
+suffice. It is possible to do this crudely with this flag by
+enabling it and then use identity URL mappings to re-disable it for
+specific domains.
+
+.. ts:cv:: CONFIG proxy.config.http.keep_alive_enabled_in  INT 1
+
+   Enables (``1``) or disables (``0``) incoming keep-alive connections.
+
+.. ts:cv:: CONFIG proxy.config.http.keep_alive_enabled_out  INT 1
+
+   Enables (``1``) or disables (``0``) outgoing keep-alive connections.
+
+  .. note::
+        Enabling keep-alive does not automatically enable purging of keep-alive
+        requests when nearing the connection limit, that is controlled by
+        :ts:cv:`proxy.config.http.server_max_connections`.
+
+.. ts:cv:: CONFIG proxy.config.http.keep_alive_post_out  INT 1
+
+   Controls wether new POST requests re-use keep-alive sessions (``1``) or
+   create new connections per request (``0``).
+
+
+Parent Proxy Configuration
+==========================
+
+.. ts:cv:: CONFIG proxy.config.http.parent_proxy_routing_enable INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) the parent caching option. Refer to :ref:`hierarchical-caching`.
+
+.. ts:cv:: CONFIG proxy.config.http.parent_proxy.retry_time INT 300
+   :reloadable:
+
+   The amount of time allowed between connection retries to a parent cache that is unavailable.
+
+.. ts:cv:: CONFIG proxy.config.http.parent_proxy.fail_threshold INT 10
+   :reloadable:
+
+   The number of times the connection to the parent cache can fail before Traffic Server considers the parent unavailable.
+
+.. ts:cv:: CONFIG proxy.config.http.parent_proxy.total_connect_attempts INT 4
+   :reloadable:
+
+   The total number of connection attempts allowed to a parent cache before Traffic Server bypasses the parent or fails the request
+   (depending on the ``go_direct`` option in the :file:`parent.config` file).
+
+.. ts:cv:: CONFIG proxy.config.http.parent_proxy.per_parent_connect_attempts INT 2
+   :reloadable:
+
+   The total number of connection attempts allowed per parent, if multiple parents are used.
+
+.. ts:cv:: CONFIG proxy.config.http.parent_proxy.connect_attempts_timeout INT 30
+   :reloadable:
+
+   The timeout value (in seconds) for parent cache connection attempts.
+
+.. ts:cv:: CONFIG proxy.config.http.forward.proxy_auth_to_parent INT 0
+   :reloadable:
+
+   Configures Traffic Server to send proxy authentication headers on to the parent cache.
+
+.. ts:cv:: CONFIG proxy.config.http.no_dns_just_forward_to_parent INT 0
+   :reloadable:
+
+   Don't try to resolve DNS, forward all DNS requests to the parent. This is off (``0``) by default.
+
+
+
+
+HTTP Connection Timeouts
+========================
+
+.. ts:cv:: CONFIG proxy.config.http.keep_alive_no_activity_timeout_in INT 115
+   :reloadable:
+
+   Specifies how long Traffic Server keeps connections to clients open for a subsequent request after a transaction ends.
+
+.. ts:cv:: CONFIG proxy.config.http.keep_alive_no_activity_timeout_out INT 120
+   :reloadable:
+
+   Specifies how long Traffic Server keeps connections to origin servers open for a subsequent transfer of data after a transaction ends.
+
+.. ts:cv:: CONFIG proxy.config.http.transaction_no_activity_timeout_in INT 30
+   :reloadable:
+
+   Specifies how long Traffic Server keeps connections to clients open if a transaction stalls.
+
+.. ts:cv:: CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 30
+   :reloadable:
+
+   Specifies how long Traffic Server keeps connections to origin servers open if the transaction stalls.
+
+.. ts:cv:: CONFIG proxy.config.http.transaction_active_timeout_in INT 900
+   :reloadable:
+
+   The maximum amount of time Traffic Server can remain connected to a client. If the transfer to the client is not complete before this
+   timeout expires, then Traffic Server closes the connection.
+
+The value of ``0`` specifies that there is no timeout.
+
+.. ts:cv:: CONFIG proxy.config.http.transaction_active_timeout_out INT 0
+   :reloadable:
+
+   The maximum amount of time Traffic Server waits for fulfillment of a connection request to an origin server. If Traffic Server does not
+   complete the transfer to the origin server before this timeout expires, then Traffic Server terminates the connection request.
+
+The default value of ``0`` specifies that there is no timeout.
+
+.. ts:cv:: CONFIG proxy.config.http.accept_no_activity_timeout INT 120
+   :reloadable:
+
+   The timeout interval in seconds before Traffic Server closes a connection that has no activity.
+
+.. ts:cv:: CONFIG proxy.config.http.background_fill_active_timeout INT 0
+   :reloadable:
+
+   Specifies how long Traffic Server continues a background fill before giving up and dropping the origin server connection.
+
+.. ts:cv:: CONFIG proxy.config.http.background_fill_completed_threshold FLOAT 0.0
+   :reloadable:
+
+   The proportion of total document size already transferred when a client aborts at which the proxy continues fetching the document
+   from the origin server to get it into the cache (a **background fill**).
+
+Origin Server Connect Attempts
+==============================
+
+.. ts:cv:: CONFIG proxy.config.http.connect_attempts_max_retries INT 6
+   :reloadable:
+
+   The maximum number of connection retries Traffic Server can make when the origin server is not responding.
+
+.. ts:cv:: CONFIG proxy.config.http.connect_attempts_max_retries_dead_server INT 3
+   :reloadable:
+
+   The maximum number of connection retries Traffic Server can make when the origin server is unavailable.
+
+.. ts:cv:: CONFIG proxy.config.http.server_max_connections INT 0
+   :reloadable:
+
+   Limits the number of socket connections across all origin servers to the value specified. To disable, set to zero (``0``).
+
+   .. note::
+        This value is used in determining when and if to prune active origin sessions. Without this value set connections
+        to origins can consume all the way up to ts:cv:`proxy.config.net.connections_throttle` connections, which in turn can
+        starve incoming requests from available connections.
+
+.. ts:cv:: CONFIG proxy.config.http.origin_max_connections INT 0
+   :reloadable:
+
+   Limits the number of socket connections per origin server to the value specified. To enable, set to one (``1``).
+
+.. ts:cv:: CONFIG proxy.config.http.origin_min_keep_alive_connections INT 0
+   :reloadable:
+
+   As connection to an origin server are opened, keep at least 'n' number of connections open to that origin, even if
+   the connection isn't used for a long time period. Useful when the origin supports keep-alive, removing the time
+   needed to set up a new connection from
+   the next request at the expense of added (inactive) connections. To enable, set to one (``1``).
+
+.. ts:cv:: CONFIG proxy.config.http.connect_attempts_rr_retries INT 3
+   :reloadable:
+
+   The maximum number of failed connection attempts allowed before a round-robin entry is marked as 'down' if a server
+   has round-robin DNS entries.
+
+.. ts:cv:: CONFIG proxy.config.http.connect_attempts_timeout INT 30
+   :reloadable:
+
+   The timeout value (in seconds) for an origin server connection.
+
+.. ts:cv:: CONFIG proxy.config.http.post_connect_attempts_timeout INT 1800
+   :reloadable:
+
+   The timeout value (in seconds) for an origin server connection when the client request is a ``POST`` or ``PUT``
+   request.
+
+.. ts:cv:: CONFIG proxy.config.http.down_server.cache_time INT 300
+   :reloadable:
+
+   Specifies how long (in seconds) Traffic Server remembers that an origin server was unreachable.
+
+.. ts:cv:: CONFIG proxy.config.http.down_server.abort_threshold INT 10
+   :reloadable:
+
+   The number of seconds before Traffic Server marks an origin server as unavailable after a client abandons a request
+   because the origin server was too slow in sending the response header.
+
+.. ts:cv:: CONFIG proxy.config.http.uncacheable_requests_bypass_parent INT 1
+
+   When enabled (1), Traffic Server bypasses the parent proxy for a request that is not cacheable.
+
+Congestion Control
+==================
+
+.. ts:cv:: CONFIG proxy.config.http.congestion_control.enabled INT 0
+
+   Enables (``1``) or disables (``0``) the Congestion Control option, which configures Traffic Server to stop forwarding
+   HTTP requests to origin servers when they become congested. Traffic Server sends the client a message to retry the
+   congested origin server later. Refer to :ref:`using-congestion-control`.
+
+.. ts:cv:: CONFIG proxy.config.http.flow_control.enabled INT 0
+
+   Transaction buffering / flow control is enabled if this is set to a non-zero value. Otherwise no flow control is done.
+
+.. ts:cv:: CONFIG proxy.config.http.flow_control.high_water INT 0
+   :metric: bytes
+
+   The high water mark for transaction buffer control. External source I/O is halted when the total buffer space in use
+   by the transaction exceeds this value.
+
+.. ts:cv:: CONFIG proxy.config.http.flow_control.low_water INT 0
+   :metric: bytes
+
+   The low water mark for transaction buffer control. External source I/O is resumed when the total buffer space in use
+   by the transaction is no more than this value.
+
+Negative Response Caching
+=========================
+
+.. ts:cv:: CONFIG proxy.config.http.negative_caching_enabled INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server caches negative responses (such as ``404 Not Found``) when a requested page does
+   not exist. The next time a client requests the same page, Traffic Server serves the negative response directly from
+   cache. When disabled (``0``) Traffic Server will only cache the response if the response has ``Cache-Control`` headers.
+
+   .. note::
+
+      ``Cache-Control`` directives from the server forbidding cache are ignored for the following HTTP response codes, regardless
+      of the value specified for the :ts:cv:`proxy.config.http.negative_caching_enabled` variable.
+
+      The following negative responses are cached by Traffic Server:::
+
+         204  No Content
+         305  Use Proxy
+         400  Bad Request
+         403  Forbidden
+         404  Not Found
+         405  Method Not Allowed
+         500  Internal Server Error
+         501  Not Implemented
+         502  Bad Gateway
+         503  Service Unavailable
+         504  Gateway Timeout
+
+   The cache lifetime for objects cached from this setting is controlled via
+   :ts:cv:`proxy.config.http.negative_caching_lifetime`.
+
+.. ts:cv:: CONFIG proxy.config.http.negative_caching_lifetime INT 1800
+
+   How long (in seconds) Traffic Server keeps the negative responses  valid in cache. This value only affects negative
+   responses that do have explicit ``Expires:`` or ``Cache-Control:`` lifetimes set by the server.
+
+Proxy User Variables
+====================
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_remove_from INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server removes the ``From`` header to protect the privacy of your users.
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_remove_referer INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server removes the ``Referrer`` header to protect the privacy of your site and users.
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_remove_user_agent INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server removes the ``User-agent`` header to protect the privacy of your site and users.
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_remove_cookie INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server removes the ``Cookie`` header to protect the privacy of your site and users.
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_remove_client_ip INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server removes ``Client-IP`` headers for more privacy.
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_insert_client_ip INT 1
+   :reloadable:
+
+   When enabled (``1``), Traffic Server inserts ``Client-IP`` headers to retain the client IP address.
+
+.. ts:cv:: CONFIG proxy.config.http.anonymize_other_header_list STRING NULL
+   :reloadable:
+
+   Comma separated list of headers Traffic Server should remove from outgoing requests.
+
+.. ts:cv:: CONFIG proxy.config.http.insert_squid_x_forwarded_for INT 1
+   :reloadable:
+
+   When enabled (``1``), Traffic Server adds the client IP address to the ``X-Forwarded-For`` header.
+
+.. ts:cv:: CONFIG proxy.config.http.normalize_ae_gzip INT 1
+   :reloadable:
+
+   Enable (``1``) to normalize all ``Accept-Encoding:`` headers to one of the following:
+
+   -  ``Accept-Encoding: gzip`` (if the header has ``gzip`` or ``x-gzip`` with any ``q``) **OR**
+   -  *blank* (for any header that does not include ``gzip``)
+
+   This is useful for minimizing cached alternates of documents (e.g. ``gzip, deflate`` vs. ``deflate, gzip``). Enabling this option is
+   recommended if your origin servers use no encodings other than ``gzip``.
+
+
+Security
+========
+
+.. ts:cv:: CONFIG proxy.config.http.push_method_enabled INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) the HTTP ``PUSH`` option, which allows you to deliver content directly to the cache without a user
+   request.
+
+   .. important::
+
+       If you enable this option, then you must also specify
+       a filtering rule in the ip_allow.config file to allow only certain
+       machines to push content into the cache.
+
+Cache Control
+=============
+
+.. ts:cv:: CONFIG proxy.config.cache.enable_read_while_writer INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) ability to a read cached object while the another connection is completing the write to cache for
+   the same object. Several other configuration values need to be set for this to become active. See :ref:`reducing-origin-server-requests-avoiding-the-thundering-herd`
+
+.. ts:cv:: CONFIG proxy.config.cache.force_sector_size INT 0
+   :reloadable:
+
+   Forces the use of a specific hardware sector size (512 - 8192 bytes).
+
+.. ts:cv:: CONFIG proxy.config.http.cache.http INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) caching of HTTP requests.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.allow_empty_doc INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) caching objects that have an empty
+   response body. This is particularly useful for caching 301 or 302 responses
+   with a ``Location`` header but no document body. This only works if the
+   origin response also has a ``Content-Length`` header.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_client_no_cache INT 1
+   :reloadable:
+
+   When enabled (``1``), Traffic Server ignores client requests to bypass the cache.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ims_on_client_no_cache INT 1
+   :reloadable:
+
+   When enabled (``1``), Traffic Server issues a conditional request to the origin server if an incoming request has a ``No-Cache`` header.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_server_no_cache INT 0
+   :reloadable:
+
+   When enabled (``1``), Traffic Server ignores origin server requests to bypass the cache.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.cache_responses_to_cookies INT 1
+   :reloadable:
+
+   Specifies how cookies are cached:
+
+   -  ``0`` = do not cache any responses to cookies
+   -  ``1`` = cache for any content-type
+   -  ``2`` = cache only for image types
+   -  ``3`` = cache for all but text content-types
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_authentication INT 0
+
+   When enabled (``1``), Traffic Server ignores ``WWW-Authentication`` headers in responses ``WWW-Authentication`` headers are removed and
+   not cached.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.cache_urls_that_look_dynamic INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) caching of URLs that look dynamic, i.e.: URLs that end in *``.asp``* or contain a question
+   mark (*``?``*), a semicolon (*``;``*), or *``cgi``*. For a full list, please refer to
+   `HttpTransact::url_looks_dynamic </link/to/doxygen>`_
+
+.. ts:cv:: CONFIG proxy.config.http.cache.enable_default_vary_headers INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) caching of alternate versions of HTTP objects that do not contain the ``Vary`` header.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.when_to_revalidate INT 0
+   :reloadable:
+
+   Specifies when to revalidate content:
+
+   -  ``0`` = use cache directives or heuristic (the default value)
+   -  ``1`` = stale if heuristic
+   -  ``2`` = always stale (always revalidate)
+   -  ``3`` = never stale
+   -  ``4`` = use cache directives or heuristic (0) unless the request
+       has an ``If-Modified-Since`` header
+
+   If the request contains the ``If-Modified-Since`` header, then
+   Traffic Server always revalidates the cached content and uses the
+   client's ``If-Modified-Since`` header for the proxy request.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.required_headers INT 2
+   :reloadable:
+
+   The type of headers required in a request for the request to be cacheable.
+
+   -  ``0`` = no headers required to make document cacheable
+   -  ``1`` = either the ``Last-Modified`` header, or an explicit lifetime header, ``Expires`` or ``Cache-Control: max-age``, is required
+   -  ``2`` = explicit lifetime is required, ``Expires`` or ``Cache-Control: max-age``
+
+.. ts:cv:: CONFIG proxy.config.http.cache.max_stale_age INT 604800
+   :reloadable:
+
+   The maximum age allowed for a stale response before it cannot be cached.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.range.lookup INT 1
+
+   When enabled (``1``), Traffic Server looks up range requests in the cache.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.range.write INT 0
+
+   When enabled (``1``), Traffic Server will attempt to write (lock) the URL
+   to cache. This is rarely useful (at the moment), since it'll only be able
+   to write to cache if the origin has ignored the ``Range:` header. For a use
+   case where you know the origin will respond with a full (``200``) response,
+   you can turn this on to allow it to be cached.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_accept_mismatch INT 2
+   :reloadable:
+
+   When enabled with a value of ``1``, Traffic Server serves documents from cache with a
+   ``Content-Type:`` header even if it does not match the ``Accept:`` header of the
+   request. If set to ``2`` (default), this logic only happens in the absence of a
+   ``Vary`` header in the cached response (which is the recommended and safe use).
+
+   .. note::
+      This option should only be enabled with ``1`` if you're having
+      problems with caching *and* you origin server doesn't set the ``Vary``
+      header. Alternatively, if the origin is incorrectly setting
+      ``Vary: Accept`` or doesn't respond with ``406 (Not Acceptable)``,
+      you can also enable this configuration with a ``1``.
+
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_accept_language_mismatch INT 2
+   :reloadable:
+
+   When enabled with a value of ``1``, Traffic Server serves documents from cache with a
+   ``Content-Language:`` header even if it does not match the ``Accept-Language:``
+   header of the request. If set to ``2`` (default), this logic only happens in the absence of a
+   ``Vary`` header in the cached response (which is the recommended and safe use).
+
+   .. note::
+
+      This option should only be enabled with ``1`` if you're having
+      problems with caching *and* you origin server doesn't set the ``Vary``
+      header. Alternatively, if the origin is incorrectly setting
+      ``Vary: Accept-Language`` or doesn't respond with ``406 (Not Acceptable)``,
+      you can also enable this configuration with a ``1``.
+
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_accept_encoding_mismatch INT 2
+   :reloadable:
+
+   When enabled with a value of ``1``, Traffic Server serves documents from cache with a
+   ``Content-Encoding:`` header even if it does not match the ``Accept-Encoding:``
+   header of the request. If set to ``2`` (default), this logic only happens in the absence of a
+   ``Vary`` header in the cached response (which is the recommended and safe use).
+
+   .. note::
+
+      This option should only be enabled with ``1`` if you're having
+      problems with caching *and* you origin server doesn't set the ``Vary``
+      header. Alternatively, if the origin is incorrectly setting
+      ``Vary: Accept-Encoding`` or doesn't respond with ``406 (Not Acceptable)``
+      you can also enable this configuration with a ``1``.
+
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_accept_charset_mismatch INT 2
+   :reloadable:
+
+   When enabled with a value of ``1``, Traffic Server serves documents from cache with a
+   ``Content-Type:`` header even if it does not match the ``Accept-Charset:`` header
+   of the request. If set to ``2`` (default), this logic only happens in the absence of a
+   ``Vary`` header in the cached response (which is the recommended and safe use).
+
+   .. note::
+
+      This option should only be enabled with ``1`` if you're having
+      problems with caching *and* you origin server doesn't set the ``Vary``
+      header. Alternatively, if the origin is incorrectly setting
+      ``Vary: Accept-Charset`` or doesn't respond with ``406 (Not Acceptable)``,
+      you can also enable this configuration with a ``1``.
+
+
+.. ts:cv:: CONFIG proxy.config.http.cache.ignore_client_cc_max_age INT 1
+   :reloadable:
+
+   When enabled (``1``), Traffic Server ignores any ``Cache-Control:
+   max-age`` headers from the client. This technically violates the HTTP RFC,
+   but avoids a problem where a client can forcefully invalidate a cached object.
+
+.. ts:cv:: CONFIG proxy.config.cache.max_doc_size INT 0
+
+   Specifies the maximum object size that will be cached. ``0`` is unlimited.
+
+.. ts:cv:: CONFIG proxy.config.cache.permit.pinning INT 1
+   :reloadable:
+
+   When enabled (``1``), Traffic Server will keep certain HTTP objects in the cache for a certain time as specified in cache.config.
+
+.. ts:cv:: CONFIG proxy.config.cache.hit_evacuate_percent INT 0
+
+   The size of the region (as a percentage of the total content storage in a :term:`cache stripe`) in front of the
+   :term:`write cursor` that constitutes a recent access hit for evacutating the accessed object.
+
+   When an object is accessed it can be marked for evacuation, that is to be copied over the write cursor and
+   thereby preserved from being overwritten. This is done if it is no more than a specific number of bytes in front of
+   the write cursor. The number of bytes is a percentage of the total number of bytes of content storage in the cache
+   stripe where the object is stored and that percentage is set by this variable.
+
+   By default, the feature is off (set to 0).
+
+.. ts:cv:: CONFIG proxy.config.cache.hit_evacuate_size_limit INT 0
+   :metric: bytes
+
+   Limit the size of objects that are hit evacuated.
+
+   Objects larger than the limit are not hit evacuated. A value of 0 disables the limit.
+
+.. ts:cv:: CONFIG proxy.config.cache.limits.http.max_alts INT 5
+
+   The maximum number of alternates that are allowed for any given URL.
+   Disable by setting to 0. Note that this setting will not strictly enforce
+   this if the variable ``proxy.config.cache.vary_on_user_agent`` is set
+   to 1 (by default it is 0).
+
+.. ts:cv:: CONFIG proxy.config.cache.target_fragment_size INT 1048576
+
+   Sets the target size of a contiguous fragment of a file in the disk cache. Accepts values that are powers of 2, e.g. 65536, 131072,
+   262144, 524288, 1048576, 2097152, etc. When setting this, consider that larger numbers could waste memory on slow connections,
+   but smaller numbers could increase (waste) seeks.
+
+RAM Cache
+=========
+
+.. ts:cv:: CONFIG proxy.config.cache.ram_cache.size INT -1
+
+   By default the RAM cache size is automatically determined, based on
+   disk cache size; approximately 10 MB of RAM cache per GB of disk cache.
+   Alternatively, it can be set to a fixed value such as
+   **20GB** (21474836480)
+
+.. ts:cv:: CONFIG proxy.config.cache.ram_cache.algorithm INT 0
+
+   Two distinct RAM caches are supported, the default (0) being the **CLFUS**
+   (*Clocked Least Frequently Used by Size*). As an alternative, a simpler
+   **LRU** (*Least Recently Used*) cache is also available, by changing this
+   configuration to 1.
+
+.. ts:cv:: CONFIG proxy.config.cache.ram_cache.use_seen_filter INT 0
+
+   Enabling this option will filter inserts into the RAM cache to ensure that
+   they have been seen at least once.  For the **LRU**, this provides scan
+   resistance. Note that **CLFUS** already requires that a document have history
+   before it is inserted, so for **CLFUS**, setting this option means that a
+   document must be seen three times before it is added to the RAM cache.
+
+.. ts:cv:: CONFIG proxy.config.cache.ram_cache.compress INT 0
+
+   The **CLFUS** RAM cache also supports an optional in-memory compression.
+   This is not to be confused with ``Content-Encoding: gzip`` compression.
+   The RAM cache compression is intended to try to save space in the RAM,
+   and is not visible to the User-Agent (client).
+
+   Possible values are:
+
+   - ``0`` = no compression
+   - ``1`` = fastlz (extremely fast, relatively low compression)
+   - ``2`` = libz (moderate speed, reasonable compression)
+   - ``3`` = liblzma (very slow, high compression)
+
+   .. note::
+
+      Compression runs on task threads.  To use more cores for RAM cache compression, increase :ts:cv:`proxy.config.task_threads`.
+
+
+Heuristic Expiration
+====================
+
+.. ts:cv:: CONFIG proxy.config.http.cache.heuristic_min_lifetime INT 3600
+   :reloadable:
+
+   The minimum amount of time an HTTP object without an expiration date can remain fresh in the cache before is
+   considered to be stale.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.heuristic_max_lifetime INT 86400
+   :reloadable:
+
+   The maximum amount of time an HTTP object without an expiration date can remain fresh in the cache before is
+   considered to be stale.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.heuristic_lm_factor FLOAT 0.10
+   :reloadable:
+
+   The aging factor for freshness computations. Traffic Server stores an object for this percentage of the time that
+   elapsed since it last changed.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.fuzz.time INT 240
+   :reloadable:
+
+   How often Traffic Server checks for an early refresh, during the period before the document stale time. The interval
+   specified must be in seconds. See :ref:`fuzzy-revalidation`
+
+.. ts:cv:: CONFIG proxy.config.http.cache.fuzz.probability FLOAT 0.005
+   :reloadable:
+
+   The probability that a refresh is made on a document during the specified fuzz time.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.fuzz.min_time INT 0
+   :reloadable:
+
+   Handles requests with a TTL less than fuzz.time – it allows for different times to evaluate the probability of revalidation for small TTLs and big TTLs. Objects with small TTLs will start "rolling the revalidation dice" near the fuzz.min_time, while objects with large TTLs would start at fuzz.time. A logarithmic like function between determines the revalidation evaluation start time (which will be between fuzz.min_time and fuzz.time). As the object gets closer to expiring, the window start becomes more likely. By default this setting is not enabled, but should be enabled anytime you have objects with small TTLs. The default value is ``0``.
+
+Dynamic Content & Content Negotiation
+=====================================
+
+.. ts:cv:: CONFIG proxy.config.http.cache.vary_default_text STRING NULL
+   :reloadable:
+
+   The header on which Traffic Server varies for text documents.
+
+For example: if you specify ``User-agent``, then Traffic Server caches
+all the different user-agent versions of documents it encounters.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.vary_default_images STRING NULL
+   :reloadable:
+
+   The header on which Traffic Server varies for images.
+
+.. ts:cv:: CONFIG proxy.config.http.cache.vary_default_other STRING NULL
+   :reloadable:
+
+   The header on which Traffic Server varies for anything other than text and images.
+
+Customizable User Response Pages
+================================
+
+.. ts:cv:: CONFIG proxy.config.body_factory.enable_customizations INT 1
+
+   Specifies whether customizable response pages are language specific
+   or not:
+
+   -  ``1`` = enable customizable user response pages in the default directory only
+   -  ``2`` = enable language-targeted user response pages
+
+.. ts:cv:: CONFIG proxy.config.body_factory.enable_logging INT 0
+
+   Enables (``1``) or disables (``0``) logging for customizable response pages. When enabled, Traffic Server records a message in
+   the error log each time a customized response page is used or modified.
+
+.. ts:cv:: CONFIG proxy.config.body_factory.template_sets_dir STRING etc/trafficserver/body_factory
+
+   The customizable response page default directory. If this is a
+   relative path, Traffic Server resolves it relative to the
+   ``PREFIX`` directory.
+
+.. ts:cv:: CONFIG proxy.config.body_factory.response_suppression_mode INT 0
+
+   Specifies when Traffic Server suppresses generated response pages:
+
+   -  ``0`` = never suppress generated response pages
+   -  ``1`` = always suppress generated response pages
+   -  ``2`` = suppress response pages only for intercepted traffic
+
+.. ts:cv:: CONFIG proxy.config.http_ui_enabled INT 0
+
+   Enable the user interface page.
+
+DNS
+===
+
+.. ts:cv:: CONFIG proxy.config.dns.search_default_domains INT 0
+   :Reloadable:
+
+   Enables (``1``) or disables (``0``) local domain expansion.
+
+Traffic Server can attempt to resolve unqualified hostnames by
+expanding to the local domain. For example if a client makes a
+request to an unqualified host (``host_x``) and the Traffic Server
+local domain is ``y.com`` , then Traffic Server will expand the
+hostname to ``host_x.y.com``.
+
+.. ts:cv:: CONFIG proxy.config.dns.splitDNS.enabled INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) DNS server selection. When enabled, Traffic Server refers to the :file:`splitdns.config` file for
+   the selection specification. Refer to :ref:`Configuring DNS Server Selection (Split DNS) <configuring-dns-server-selection-split-dns>`.
+
+.. ts:cv:: CONFIG proxy.config.dns.url_expansions STRING NULL
+
+   Specifies a list of hostname extensions that are automatically added to the hostname after a failed lookup. For example: if you want
+   Traffic Server to add the hostname extension .org, then specify ``org`` as the value for this variable (Traffic Server automatically
+   adds the dot (.)).
+
+.. note::
+
+   If the variable :ts:cv:`proxy.config.http.enable_url_expandomatic` is set to ``1`` (the default value), then you do not have to
+   add *``www.``* and *``.com``* to this list because Traffic Server automatically tries www. and .com after trying the values
+   you've specified.
+
+.. ts:cv:: CONFIG proxy.config.dns.resolv_conf STRING /etc/resolv.conf
+
+   Allows to specify which ``resolv.conf`` file to use for finding resolvers. While the format of this file must be the same as the
+   standard ``resolv.conf`` file, this option allows an administrator to manage the set of resolvers in an external configuration file,
+   without affecting how the rest of the operating system uses DNS.
+
+.. ts:cv:: CONFIG proxy.config.dns.round_robin_nameservers INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) DNS server round-robin.
+
+.. ts:cv:: CONFIG proxy.config.dns.nameservers STRING NULL
+   :reloadable:
+
+   The DNS servers.
+
+.. ts:cv:: CONFIG proxy.config.srv_enabled INT 0
+   :reloadable:
+
+   Indicates whether to use SRV records for orgin server lookup.
+
+.. ts:cv:: CONFIG proxy.config.dns.dedicated_thread INT 0
+
+   Create and dedicate a thread entirely for DNS processing. This is probably
+   most useful on system which do a significant number of DNS lookups,
+   typically forward proxies. But even on other systems, it can avoid some
+   contention on the first worker thread (which otherwise takes on the burden of
+   all DNS lookups).
+
+.. ts:cv:: CONFIG proxy.config.dns.validate_query_name INT 0
+
+   When enabled (1) provides additional resilience against DNS forgery (for instance
+   in DNS Injection attacks), particularly in forward or transparent proxies, but
+   requires that the resolver populates the queries section of the response properly.
+
+HostDB
+======
+
+.. ts:cv:: CONFIG proxy.config.hostdb.serve_stale_for INT
+   :metric: seconds
+   :reloadable:
+
+   The number of seconds for which to use a stale NS record while initiating a
+   background fetch for the new data.
+
+   If not set then stale records are not served.
+
+.. ts:cv:: CONFIG proxy.config.hostdb.storage_size INT 33554432
+   :metric: bytes
+
+   The amount of space (in bytes) used to store ``hostdb``.
+   The value of this variable must be increased if you increase the size of the
+   `proxy.config.hostdb.size`_ variable.
+
+.. ts:cv:: CONFIG proxy.config.hostdb.size INT 120000
+
+   The maximum number of entries that can be stored in the database.
+
+.. note::
+
+   For values above ``200000``, you must increase :ts:cv:`proxy.config.hostdb.storage_size` by at least 44 bytes per entry.
+
+.. ts:cv:: CONFIG proxy.config.hostdb.ttl_mode INT 0
+   :reloadable:
+
+   A host entry will eventually time out and be discarded. This variable controls how that time is calculated. A DNS
+   request will return a TTL value and an internal value can be set with :ts:cv:`proxy.config.hostdb.timeout`. This
+   variable determines which value will be used.
+
+   =====    ===
+   Value    TTL
+   =====    ===
+   0        The TTL from the DNS response.
+   1        The internal timeout value.
+   2        The smaller of the DNS and internal TTL values. The internal timeout value becomes a maximum TTL.
+   3        The larger of the DNS and internal TTL values. The internal timeout value become a minimum TTL.
+   =====    ===
+
+.. ts:cv:: CONFIG proxy.config.hostdb.timeout INT 1440
+   :metric: minutes
+   :reloadable:
+
+   Internal time to live value for host DB entries, **in minutes**.
+
+   See :ts:cv:`proxy.config.hostdb.ttl_mode` for when this value is used.
+
+.. ts:cv:: CONFIG proxy.config.hostdb.strict_round_robin INT 0
+   :reloadable:
+
+   Set host resolution to use strict round robin.
+
+When this and :ts:cv:`proxy.config.hostdb.timed_round_robin` are both disabled (set to ``0``), Traffic Server always
+uses the same origin server for the same client, for as long as the origin server is available. Otherwise if this is
+set then IP address is rotated on every request. This setting takes precedence over
+:ts:cv:`proxy.config.hostdb.timed_round_robin`.
+
+.. ts:cv:: CONFIG proxy.config.hostdb.timed_round_robin INT 0
+   :reloadable:
+
+   Set host resolution to use timed round robin.
+
+When this and :ts:cv:`proxy.config.hostdb.strict_round_robin` are both disabled (set to ``0``), Traffic Server always
+uses the same origin server for the same client, for as long as the origin server is available. Otherwise if this is
+set to :arg:`N` the IP address is rotated if more than :arg:`N` seconds have past since the first time the
+current address was used.
+
+.. ts:cv:: CONFIG proxy.config.hostdb.ip_resolve STRING NULL
+
+   Set the host resolution style.
+
+This is an ordered list of keywords separated by semicolons that specify how a host name is to be resolved to an IP address. The keywords are case
+insensitive.
+
+=======  =======
+Keyword  Meaning
+=======  =======
+ipv4     Resolve to an IPv4 address.
+ipv6     Resolve to an IPv6 address.
+client   Resolve to the same family as the client IP address.
+none     Stop resolving.
+=======  =======
+
+The order of the keywords is critical. When a host name needs to be resolved it is resolved in same order as the
+keywords. If a resolution fails, the next option in the list is tried. The keyword ``none`` means to give up resolution
+entirely. The keyword list has a maximum length of three keywords, more are never needed. By default there is an
+implicit ``ipv4;ipv6`` attached to the end of the string unless the keyword ``none`` appears.
+
+.. topic:: Example
+
+   Use the incoming client family, then try IPv4 and IPv6. ::
+
+      client;ipv4;ipv6
+
+   Because of the implicit resolution this can also be expressed as just ::
+
+      client
+
+.. topic:: Example
+
+   Resolve only to IPv4. ::
+
+      ipv4;none
+
+.. topic:: Example
+
+   Resolve only to the same family as the client (do not permit cross family transactions). ::
+
+      client;none
+
+This value is a global default that can be overridden by :ts:cv:`proxy.config.http.server_ports`.
+
+.. note::
+
+   This style is used as a convenience for the administrator. During a resolution the *resolution order* will be
+   one family, then possibly the other. This is determined by changing ``client`` to ``ipv4`` or ``ipv6`` based on the
+   client IP address and then removing duplicates.
+
+.. important::
+
+   This option has no effect on outbound transparent connections The local IP address used in the connection to the
+   origin server is determined by the client, which forces the IP address family of the address used for the origin
+   server. In effect, outbound transparent connections always use a resolution style of "``client``".
+
+Logging Configuration
+=====================
+
+.. ts:cv:: CONFIG proxy.config.log.logging_enabled INT 3
+   :reloadable:
+
+   Enables and disables event logging:
+
+   -  ``0`` = logging disabled
+   -  ``1`` = log errors only
+   -  ``2`` = log transactions only
+   -  ``3`` = full logging (errors + transactions)
+
+   Refer to :ref:`working-with-log-files`.
+
+.. ts:cv:: CONFIG proxy.config.log.max_secs_per_buffer INT 5
+   :reloadable:
+
+   The maximum amount of time before data in the buffer is flushed to disk.
+
+.. ts:cv:: CONFIG proxy.config.log.max_space_mb_for_logs INT 25000
+   :metric: megabytes
+   :reloadable:
+
+   The amount of space allocated to the logging directory (in MB).
+
+.. note::
+
+   All files in the logging directory contribute to the space used, even if they are not log files. In collation client
+   mode, if there is no local disk logging, or :ts:cv:`proxy.config.log.max_space_mb_for_orphan_logs` is set to a higher
+   value than :ts:cv:`proxy.config.log.max_space_mb_for_logs`, TS will take
+   :ts:cv:`proxy.config.log.max_space_mb_for_orphan_logs` for maximum allowed log space.
+
+.. ts:cv:: CONFIG proxy.config.log.max_space_mb_for_orphan_logs INT 25
+   :metric: megabytes
+   :reloadable:
+
+   The amount of space allocated to the logging directory (in MB) if this node is acting as a collation client.
+
+.. note::
+
+   When max_space_mb_for_orphan_logs is take as the maximum allowed log space in the logging system, the same rule apply
+   to proxy.config.log.max_space_mb_for_logs also apply to proxy.config.log.max_space_mb_for_orphan_logs, ie: All files
+   in the logging directory contribute to the space used, even if they are not log files. you may need to consider this
+   when you enable full remote logging, and bump to the same size as proxy.config.log.max_space_mb_for_logs.
+
+.. ts:cv:: CONFIG proxy.config.log.max_space_mb_headroom INT 1000
+   :metric: megabytes
+   :reloadable:
+
+   The tolerance for the log space limit (in megabytes). If the variable :ts:cv:`proxy.config.log.auto_delete_rolled_files` is set to ``1``
+   (enabled), then autodeletion of log files is triggered when the amount of free space available in the logging directory is less than
+   the value specified here.
+
+.. ts:cv:: CONFIG proxy.config.log.hostname STRING localhost
+   :reloadable:
+
+   The hostname of the machine running Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.log.logfile_dir STRING var/log/trafficserver
+   :reloadable:
+
+   The path to the logging directory. This can be an absolute path
+   or a path relative to the ``PREFIX`` directory in which Traffic
+   Server is installed.
+
+   .. note:: The directory you specify must already exist.
+
+.. ts:cv:: CONFIG proxy.config.log.logfile_perm STRING rw-r--r--
+   :reloadable:
+
+   The log file permissions. The standard UNIX file permissions are used (owner, group, other). Permissible values are:
+
+   ``-`` no permission ``r`` read permission ``w`` write permission ``x`` execute permission
+
+   Permissions are subject to the umask settings for the Traffic Server process. This means that a umask setting of\ ``002`` will not allow
+   write permission for others, even if specified in the configuration file. Permissions for existing log files are not changed when the
+   configuration is changed.
+
+.. ts:cv:: CONFIG proxy.config.log.custom_logs_enabled INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) custom logging.
+
+.. ts:cv:: CONFIG proxy.config.log.squid_log_enabled INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) the `squid log file format
+   <../working-log-files/log-formats#SquidFormat>`_. 
+
+.. ts:cv:: CONFIG proxy.config.log.squid_log_is_ascii INT 0
+   :reloadable:
+
+   The squid log file type:
+
+   -  ``1`` = ASCII
+   -  ``0`` = binary
+
+.. ts:cv:: CONFIG proxy.config.log.squid_log_name STRING squid
+   :reloadable:
+
+   The `squid log <../working-log-files/log-formats#SquidFormat>`_ filename.
+
+.. ts:cv:: CONFIG proxy.config.log.squid_log_header STRING NULL
+
+   The `squid log <../working-log-files/log-formats#SquidFormat>`_ file header text.
+
+.. ts:cv:: CONFIG proxy.config.log.common_log_enabled INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) the `Netscape common log file format <../working-log-files/log-formats#NetscapeFormats>`_.
+
+.. ts:cv:: CONFIG proxy.config.log.common_log_is_ascii INT 1
+   :reloadable:
+
+   The `Netscape common log <../working-log-files/log-formats#NetscapeFormats>`_ file type:
+
+   -  ``1`` = ASCII
+   -  ``0`` = binary
+
+.. ts:cv:: CONFIG proxy.config.log.common_log_name STRING common
+   :reloadable:
+
+   The `Netscape common log <../working-log-files/log-formats#NetscapeFormats>`_ filename.
+
+.. ts:cv:: CONFIG proxy.config.log.common_log_header STRING NULL
+   :reloadable:
+
+   The `Netscape common log <../working-log-files/log-formats#NetscapeFormats>`_ file header text.
+
+.. ts:cv:: CONFIG proxy.config.log.extended_log_enabled INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) the `Netscape extended log file format
+   <../working-log-files/log-formats#NetscapeFormats>`_. 
+
+.. ts:cv:: CONFIG proxy.config.log.extended_log_is_ascii INT 0
+
+   The `Netscape extended log <../working-log-files/log-formats#NetscapeFormats>`_ file type:
+
+   -  ``1`` = ASCII
+   -  ``0`` = binary
+
+.. ts:cv:: CONFIG proxy.config.log.extended_log_name STRING extended
+
+   The `Netscape extended log <../working-log-files/log-formats#NetscapeFormats>`_ filename.
+
+.. ts:cv:: CONFIG proxy.config.log.extended_log_header STRING NULL
+   :reloadable:
+
+   The `Netscape extended log <../working-log-files/log-formats#NetscapeFormats>`_ file header text.
+
+.. ts:cv:: CONFIG proxy.config.log.extended2_log_enabled INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) the `Netscape Extended-2 log file
+   format <../working-log-files/log-formats#NetscapeFormats>`_. 
+
+.. ts:cv:: CONFIG proxy.config.log.extended2_log_is_ascii INT 1
+   :reloadable:
+
+   The `Netscape Extended-2 log <../working-log-files/log-formats#NetscapeFormats>`_ file type:
+
+   -  ``1`` = ASCII
+   -  ``0`` = binary
+
+.. ts:cv:: CONFIG proxy.config.log.extended2_log_name STRING extended2
+   :reloadable:
+
+   The `Netscape Extended-2 log <../working-log-files/log-formats#NetscapeFormats>`_ filename.
+
+.. ts:cv:: CONFIG proxy.config.log.extended2_log_header STRING NULL
+   :reloadable:
+
+   The `Netscape Extended-2 log <../working-log-files/log-formats#NetscapeFormats>`_ file header text.
+
+.. ts:cv:: CONFIG proxy.config.log.separate_icp_logs INT 0
+   :reloadable:
+
+   When enabled (``1``), configures Traffic Server to store ICP transactions in a separate log file.
+
+   -  ``0`` = separation is disabled, all ICP transactions are recorded in the same file as HTTP transactions
+   -  ``1`` = all ICP transactions are recorded in a separate log file.
+   -  ``-1`` = filter all ICP transactions from the default log files; ICP transactions are not logged anywhere.
+
+.. ts:cv:: CONFIG proxy.config.log.separate_host_logs INT 0
+   :reloadable:
+
+   When enabled (``1``), configures Traffic Server to create a separate log file for HTTP transactions for each origin server listed in the
+   :file:`log_hosts.config` file. Refer to `HTTP Host Log Splitting <../working-log-files#HTTPHostLogSplitting>`_.
+
+.. ts:cv:: LOCAL proxy.local.log.collation_mode INT 0
+   :reloadable:
+
+   Set the log collation mode.
+
+===== ======
+Value Effect
+===== ======
+0     collation is disabled
+1     this host is a log collation server
+2     this host is a collation client and sends entries using standard formats to the collation server
+3     this host is a collation client and sends entries using the traditional custom formats to the collation server
+4     this host is a collation client and sends entries that use both the standard and traditional custom formats to the collation server
+===== ======
+
+For information on sending XML-based custom formats to the collation
+server, refer to `logs_xml.config <logs_xml.config>`_.
+
+.. note:: Although Traffic Server supports traditional custom logging, you should use the more versatile XML-based custom formats.
+
+.. ts:cv:: CONFIG proxy.config.log.collation_host STRING NULL
+
+   The hostname of the log collation server.
+
+.. ts:cv:: CONFIG proxy.config.log.collation_port INT 8085
+   :reloadable:
+
+   The port used for communication between the collation server and client.
+
+.. ts:cv:: CONFIG proxy.config.log.collation_secret STRING foobar
+   :reloadable:
+
+   The password used to validate logging data and prevent the exchange of unauthorized information when a collation server is being used.
+
+.. ts:cv:: CONFIG proxy.config.log.collation_host_tagged INT 0
+   :reloadable:
+
+   When enabled (``1``), configures Traffic Server to include the hostname of the collation client that generated the log entry in each entry.
+
+.. ts:cv:: CONFIG proxy.config.log.collation_retry_sec INT 5
+   :reloadable:
+
+   The number of seconds between collation server connection retries.
+
+.. ts:cv:: CONFIG proxy.config.log.rolling_enabled INT 1
+   :reloadable:
+
+   Specifies how log files are rolled. You can specify the following values:
+
+   -  ``0`` = disables log file rolling
+   -  ``1`` = enables log file rolling at specific intervals during the day (specified with the
+       `proxy.config.log.rolling_interval_sec`_ and `proxy.config.log.rolling_offset_hr`_ variables)
+   -  ``2`` = enables log file rolling when log files reach a specific size (specified with the `proxy.config.log.rolling_size_mb`_ variable)
+   -  ``3`` = enables log file rolling at specific intervals during the day or when log files reach a specific size (whichever occurs first)
+   -  ``4`` = enables log file rolling at specific intervals during the day when log files reach a specific size (i.e., at a specified
+       time if the file is of the specified size)
+
+.. ts:cv:: CONFIG proxy.config.log.rolling_interval_sec INT 86400
+   :reloadable:
+
+   The log file rolling interval, in seconds. The minimum value is ``60`` (1 minute). The maximum, and default, value is 86400 seconds (one day).
+
+   .. note:: If you start Traffic Server within a few minutes of the next rolling time, then rolling might not occur until the next rolling time.
+
+.. ts:cv:: CONFIG proxy.config.log.rolling_offset_hr INT 0
+   :reloadable:
+
+   The file rolling offset hour. The hour of the day that starts the log rolling period.
+
+.. ts:cv:: CONFIG proxy.config.log.rolling_size_mb INT 10
+   :reloadable:
+
+   The size that log files must reach before rolling takes place.
+
+.. ts:cv:: CONFIG proxy.config.log.auto_delete_rolled_files INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) automatic deletion of rolled files.
+
+.. ts:cv:: CONFIG proxy.config.log.sampling_frequency INT 1
+   :reloadable:
+
+   Configures Traffic Server to log only a sample of transactions rather than every transaction. You can specify the following values:
+
+   -  ``1`` = log every transaction
+   -  ``2`` = log every second transaction
+   -  ``3`` = log every third transaction and so on...
+
+.. ts:cv:: CONFIG proxy.config.http.slow.log.threshold INT 0
+   :reloadable:
+   :metric: milliseconds
+
+   If set to a non-zero value :arg:`N` then any connection that takes longer than :arg:`N` milliseconds from accept to
+   completion will cause its timing stats to be written to the :ts:cv:`debugging log file
+   <proxy.config.output.logfile>`. This is identifying data about the transaction and all of the :c:type:`transaction milestones <TSMilestonesType>`.
+
+Diagnostic Logging Configuration
+================================
+
+.. ts:cv:: CONFIG proxy.config.diags.output.diag STRING E
+.. ts:cv:: CONFIG proxy.config.diags.output.debug STRING E
+.. ts:cv:: CONFIG proxy.config.diags.output.status STRING L
+.. ts:cv:: CONFIG proxy.config.diags.output.note STRING L
+.. ts:cv:: CONFIG proxy.config.diags.output.warning STRING L
+.. ts:cv:: CONFIG proxy.config.diags.output.error STRING SL
+.. ts:cv:: CONFIG proxy.config.diags.output.fatal STRING SL
+.. ts:cv:: CONFIG proxy.config.diags.output.alert STRING L
+.. ts:cv:: CONFIG proxy.config.diags.output.emergency STRING SL
+
+   The diagnosic output configuration variables control where Traffic
+   Server should log diagnostic output. Messages at each diagnostic level
+   can be directed to any combination of diagnostic destinations.
+   Valid diagnostic message destinations are:
+
+   * 'O' = Log to standard output
+   * 'E' = Log to standard error
+   * 'S' = Log to syslog
+   * 'L' = Log to diags.log
+
+.. topic:: Example
+
+   To log debug diagnostics to both syslog and `diags.log`::
+
+        CONFIG proxy.config.diags.output.debug STRING SL
+
+.. ts:cv:: CONFIG proxy.config.diags.show_location INT 1
+
+   Annotates diagnostic messages with the source code location.
+
+.. ts:cv:: CONFIG proxy.config.diags.debug.enabled INT 0
+
+   Enables logging for diagnostic messages whose log level is `diag` or `debug`.
+
+.. ts:cv:: CONFIG proxy.config.diags.debug.tags STRING http.*|dns.*
+
+   Each Traffic Server `diag` and `debug` level message is annotated
+   with a subsytem tag. This configuration contains a regular
+   expression that filters the messages based on the tag. Some
+   commonly used debug tags are:
+
+============  =====================================================
+Tag           Subsytem usage
+============  =====================================================
+ssl           TLS termination and certificate processing
+dns           DNS query resolution
+http_hdrs     Logs the headers for HTTP requests and responses
+============  =====================================================
+
+  Traffic Server plugins will typically log debug messages using
+  the :c:func:`TSDebug` API, passing the plugin name as the debug
+  tag.
+
+Reverse Proxy
+=============
+
+.. ts:cv:: CONFIG proxy.config.reverse_proxy.enabled INT 1
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) HTTP reverse proxy.
+
+.. ts:cv:: CONFIG proxy.config.header.parse.no_host_url_redirect STRING NULL
+   :reloadable:
+
+   The URL to which to redirect requests with no host headers (reverse
+   proxy).
+
+URL Remap Rules
+===============
+
+.. ts:cv:: CONFIG proxy.config.url_remap.filename STRING remap.config
+
+   Sets the name of the :file:`remap.config` file.
+
+.. ts:cv:: CONFIG proxy.config.url_remap.default_to_server_pac INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) requests for a PAC file on the proxy
+   service port (8080 by default) to be redirected to the PAC 
+   port. For this type of redirection to work, the variable
+   `proxy.config.reverse_proxy.enabled`_ must be set to ``1``. 
+
+.. ts:cv:: CONFIG proxy.config.url_remap.default_to_server_pac_port INT -1
+   :reloadable:
+
+   Sets the PAC port so that PAC requests made to the Traffic Server
+   proxy service port are redirected this port. ``-1`` is the default
+   setting that sets the PAC port to the autoconfiguration port (the
+   default autoconfiguration port is 8083). This variable can be used
+   together with the `proxy.config.url_remap.default_to_server_pac`_
+   variable to get a PAC file from a different port. You must create
+   and run a process that serves a PAC file on this port. For example:
+   if you create a Perl script that listens on port 9000 and writes a
+   PAC file in response to any request, then you can set this variable
+   to ``9000``. Browsers that request the PAC file from a proxy server
+   on port 8080 will get the PAC file served by the Perl script.
+
+.. ts:cv:: CONFIG proxy.config.url_remap.remap_required INT 1
+   :reloadable:
+
+   Set this variable to ``1`` if you want Traffic Server to serve
+   requests only from origin servers listed in the mapping rules of the
+   :file:`remap.config` file. If a request does not match, then the browser
+   will receive an error.
+
+.. ts:cv:: CONFIG proxy.config.url_remap.pristine_host_hdr INT 0
+   :reloadable:
+
+   Set this variable to ``1`` if you want to retain the client host
+   header in a request during remapping.
+
+.. _records-config-ssl-termination:
+
+SSL Termination
+===============
+
+.. ts:cv:: CONFIG proxy.config.ssl.SSLv2 INT 0
+
+   Enables (``1``) or disables (``0``) SSLv2. Please don't enable it.
+
+.. ts:cv:: CONFIG proxy.config.ssl.SSLv3 INT 1
+
+   Enables (``1``) or disables (``0``) SSLv3.
+
+.. ts:cv:: CONFIG proxy.config.ssl.TLSv1 INT 1
+
+   Enables (``1``) or disables (``0``) TLSv1.
+
+.. ts:cv:: CONFIG proxy.config.ssl.TLSv1_1 INT 1
+
+   Enables (``1``) or disables (``0``) TLS v1.1.  If not specified, enabled by default.  [Requires OpenSSL v1.0.1 and higher]
+
+.. ts:cv:: CONFIG proxy.config.ssl.TLSv1_2 INT 1
+
+   Enables (``1``) or disables (``0``) TLS v1.2.  If not specified, DISABLED by default.  [Requires OpenSSL v1.0.1 and higher]
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.certification_level INT 0
+
+   Sets the client certification level:
+
+   -  ``0`` = no client certificates are required. Traffic Server does
+       not verify client certificates during the SSL handshake. Access
+       to Traffic Server depends on Traffic Server configuration options
+       (such as access control lists).
+
+   -  ``1`` = client certificates are optional. If a client has a
+       certificate, then the certificate is validated. If the client
+       does not have a certificate, then the client is still allowed
+       access to Traffic Server unless access is denied through other
+       Traffic Server configuration options.
+
+   -  ``2`` = client certificates are required. The client must be
+       authenticated during the SSL handshake. Clients without a
+       certificate are not allowed to access Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.ssl.server.multicert.filename STRING ssl_multicert.config
+
+   The location of the :file:`ssl_multicert.config` file, relative
+   to the Traffic Server configuration directory. In the following
+   example, if the Traffic Server configuration directory is
+   `/etc/trafficserver`, the Traffic Server SSL configuration file
+   and the corresponding certificates are located in
+   `/etc/trafficserver/ssl`::
+
+      CONFIG proxy.config.ssl.server.multicert.filename STRING ssl/ssl_multicert.config
+      CONFIG proxy.config.ssl.server.cert.path STRING etc/trafficserver/ssl
+      CONFIG proxy.config.ssl.server.private_key.path STRING etc/trafficserver/ssl
+
+.. ts:cv:: CONFIG proxy.config.ssl.server.cert.path STRING /config
+
+   The location of the SSL certificates and chains used for accepting
+   and validation new SSL sessions. If this is a relative path,
+   it is appended to the Traffic Server installation PREFIX. All
+   certificates and certificate chains listed in
+   :file:`ssl_multicert.config` will be loaded relative to this path.
+
+.. ts:cv:: CONFIG proxy.config.ssl.server.private_key.path STRING NULL
+
+   The location of the SSL certificate private keys. Change this
+   variable only if the private key is not located in the SSL
+   certificate file. All private keys listed in
+   :file:`ssl_multicert.config` will be loaded relative to this
+   path.
+
+.. ts:cv:: CONFIG proxy.config.ssl.server.cert_chain.filename STRING NULL
+
+   The name of a file containing a global certificate chain that
+   should be used with every server certificate. This file is only
+   used if there are certificates defined in :file:`ssl_multicert.config`.
+   Unless this is an absolute path, it is loaded relative to the
+   path specified by :ts:cv:`proxy.config.ssl.server.cert.path`.
+
+.. ts:cv:: CONFIG proxy.config.ssl.CA.cert.path STRING NULL
+
+   The location of the certificate authority file that client
+   certificates will be verified against.
+
+.. ts:cv:: CONFIG proxy.config.ssl.CA.cert.filename STRING NULL
+
+   The filename of the certificate authority that client certificates
+   will be verified against.
+
+.. ts:cv:: CONFIG proxy.config.ssl.max_record_size INT 0
+
+  This configuration specifies the maximum number of bytes to write
+  into a SSL record when replying over a SSL session. In some
+  circumstances this setting can improve response latency by reducing
+  buffering at the SSL layer. The default of ``0`` means to always
+  write all available data into a single SSL record.
+
+.. ts:cv:: CONFIG proxy.config.ssl.session_cache.timeout INT 0
+
+  This configuration specifies the lifetime of SSL session cache
+  entries in seconds. If it is ``0``, then the SSL library will use
+  a default value, typically 300 seconds.
+
+.. ts:cv:: CONFIG proxy.config.ssl.hsts_max_age INT -1
+
+  This configuration specifies the max-age value that will be used
+  when adding the Strict-Transport-Security header.  The value is in seconds.
+  A value of ``0`` will set the max-age value to ``0`` and should remove the
+  HSTS entry from the client.  A value of ``-1`` will disable this feature and
+  not set the header.  This option is only used for HTTPS requests and the
+  header will not be set on HTTP requests.
+
+.. ts:cv:: CONFIG proxy.config.ssl.hsts_include_subdomains INT 0
+
+  Enables (``1``) or disables (``0``) adding the includeSubdomain value
+  to the Strict-Transport-Security header.  proxy.config.ssl.hsts_max_age
+  needs to be set to a non ``-1`` value for this configuration to take effect.
+
+.. ts:cv:: CONFIG proxy.config.ssl.allow_client_renegotiation INT 0
+
+  This configuration specifies whether the client is able to initiate
+  renegotiation of the SSL connection.  The default of ``0``, means
+  the client can't initiate renegotiation.
+
+.. ts:cv:: CONFIG proxy.config.ssl.cert.load_elevated INT 0
+
+  Enables (``1``) or disables (``0``) elevation of traffic_server
+  privileges during loading of SSL certificates.  By enabling this, SSL
+  certificate files' access rights can be restricted to help reduce the
+  vulnerability of certificates.
+
+Client-Related Configuration
+----------------------------
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.verify.server INT 0
+
+   Configures Traffic Server to verify the origin server certificate
+   with the Certificate Authority (CA).
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.cert.filename STRING NULL
+
+   The filename of SSL client certificate installed on Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.cert.path STRING /config
+
+   The location of the SSL client certificate installed on Traffic
+   Server.
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.private_key.filename STRING NULL
+
+   The filename of the Traffic Server private key. Change this variable
+   only if the private key is not located in the Traffic Server SSL
+   client certificate file.
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.private_key.path STRING NULL
+
+   The location of the Traffic Server private key. Change this variable
+   only if the private key is not located in the SSL client certificate
+   file.
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.CA.cert.filename STRING NULL
+
+   The filename of the certificate authority against which the origin
+   server will be verified.
+
+.. ts:cv:: CONFIG proxy.config.ssl.client.CA.cert.path STRING NULL
+
+   Specifies the location of the certificate authority file against
+   which the origin server will be verified.
+
+ICP Configuration
+=================
+
+.. ts:cv:: CONFIG proxy.config.icp.enabled INT 0
+
+   Sets ICP mode for hierarchical caching:
+
+   -  ``0`` = disables ICP
+   -  ``1`` = allows Traffic Server to receive ICP queries only
+   -  ``2`` = allows Traffic Server to send and receive ICP queries
+
+   Refer to `ICP Peering <../hierachical-caching#ICPPeering>`_.
+
+.. ts:cv:: CONFIG proxy.config.icp.icp_interface STRING your_interface
+
+   Specifies the network interface used for ICP traffic.
+
+   .. note::
+
+       The Traffic Server installation script detects your
+       network interface and sets this variable appropriately. If your
+       system has multiple network interfaces, check that this variable
+       specifies the correct interface.
+
+.. ts:cv:: CONFIG proxy.config.icp.icp_port INT 3130
+   :reloadable:
+
+   Specifies the UDP port that you want to use for ICP messages.
+
+.. ts:cv:: CONFIG proxy.config.icp.query_timeout INT 2
+   :reloadable:
+
+   Specifies the timeout used for ICP queries.
+
+SPDY Configuration
+==================
+
+.. ts:cv:: CONFIG proxy.config.spdy.accept_no_activity_timeout INT 30
+   :reloadable:
+
+   How long a SPDY connection will be kept open after an accept without any streams created.
+
+.. ts:cv:: CONFIG proxy.config.spdy.no_activity_timeout_in INT 30
+   :reloadable:
+
+   How long a stream is kept open without activity.
+
+.. ts:cv:: CONFIG proxy.config.spdy.initial_window_size_in INT 65536
+   :reloadable:
+
+   The initial window size for inbound connections.
+
+.. ts:cv:: CONFIG proxy.config.spdy.max_concurrent_streams_in INT 100
+   :reloadable:
+
+   The maximum number of concurrent streams per inbound connection.
+
+   .. note:: Reloading this value affects only new SPDY connections, not existing connects.
+
+Scheduled Update Configuration
+==============================
+
+.. ts:cv:: CONFIG proxy.config.update.enabled INT 0
+
+   Enables (``1``) or disables (``0``) the Scheduled Update option.
+
+.. ts:cv:: CONFIG proxy.config.update.force INT 0
+   :reloadable:
+
+   Enables (``1``) or disables (``0``) a force immediate update. When
+   enabled, Traffic Server overrides the scheduling expiration time for
+   all scheduled update entries and initiates updates until this option
+   is disabled.
+
+.. ts:cv:: CONFIG proxy.config.update.retry_count INT 10
+   :reloadable:
+
+   Specifies the number of times Traffic Server can retry the scheduled
+   update of a URL in the event of failure.
+
+.. ts:cv:: CONFIG proxy.config.update.retry_interval INT 2
+   :reloadable:
+
+   Specifies the delay (in seconds) between each scheduled update retry
+   for a URL in the event of failure.
+
+.. ts:cv:: CONFIG proxy.config.update.concurrent_updates INT 100
+   :reloadable:
+
+   Specifies the maximum simultaneous update requests allowed at any
+   time. This option prevents the scheduled update process from
+   overburdening the host.
+
+Plug-in Configuration
+=====================
+
+.. ts:cv:: CONFIG proxy.config.plugin.plugin_dir STRING config/plugins
+
+   Specifies the location of Traffic Server plugins.
+
+.. ts:cv:: CONFIG proxy.config.remap.num_remap_threads INT 0
+
+   When this variable is set to ``0``, plugin remap callbacks are
+   executed in line on network threads. If remap processing takes
+   significant time, this can be cause additional request latency.
+   Setting this variable to causes remap processing to take place
+   on a dedicated thread pool, freeing the network threads to service
+   additional requests.
+
+Sockets
+=======
+
+.. ts:cv:: CONFIG proxy.config.net.defer_accept INT 1
+
+   default: ``1`` meaning ``on`` all Platforms except Linux: ``45`` seconds
+
+   This directive enables operating system specific optimizations for a listening socket. ``defer_accept`` holds a call to ``accept(2)``
+   back until data has arrived. In Linux' special case this is up to a maximum of 45 seconds.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_send_buffer_size_in INT 0
+
+   Sets the send buffer size for connections from the client to Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_recv_buffer_size_in INT 0
+
+   Sets the receive buffer size for connections from the client to Traffic Server.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_option_flag_in INT 0x0
+
+   Turns different options "on" for the socket handling client connections:::
+
+        TCP_NODELAY (1)
+        SO_KEEPALIVE (2)
+
+   .. note::
+
+       This is a flag and you look at the bits set. Therefore,
+       you must set the value to ``3`` if you want to enable both options
+       above.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_send_buffer_size_out INT 0
+
+   Sets the send buffer size for connections from Traffic Server to the origin server.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_recv_buffer_size_out INT 0
+
+   Sets the receive buffer size for connections from Traffic Server to
+   the origin server.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_option_flag_out INT 0x1
+
+   Turns different options "on" for the origin server socket:::
+
+        TCP_NODELAY (1)
+        SO_KEEPALIVE (2)
+
+   .. note::
+
+        This is a flag and you look at the bits set. Therefore,
+        you must set the value to ``3`` if you want to enable both options
+        above.
+
+.. ts:cv:: CONFIG proxy.config.net.sock_mss_in INT 0
+
+   Same as the command line option ``--accept_mss`` that sets the MSS for all incoming requests.
+
+.. ts:cv:: CONFIG proxy.config.net.poll_timeout INT 10 (or 30 on Solaris)
+
+   Same as the command line option ``--poll_timeout``, or ``-t``, which
+   specifies the timeout used for the polling mechanism used. This timeout is
+   always in milliseconds (ms). This is the timeout to ``epoll_wait()`` on
+   Linux platforms, and to ``kevent()`` on BSD type OSs. The default value is
+   ``10`` on all platforms.
+
+   Changing this configuration can reduce CPU usage on an idle system, since
+   periodic tasks gets processed at these intervals. On busy servers, this
+   overhead is diminished, since polled events triggers morefrequently.
+   However, increasing the setting can also introduce additional latency for
+   certain operations, and timed events. It's recommended not to touch this
+   setting unless your CPU usage is unacceptable at idle workload. Some
+   alternatives to this could be::
+
+        Reduce the number of worker threads (net-threads)
+        Reduce the number of disk (AIO) threads
+	Make sure accept threads are enabled
+
+   The relevant configurations for this are::
+
+       CONFIG proxy.config.exec_thread.autoconfig INT 0
+       CONFIG proxy.config.exec_thread.limit INT 2
+       CONFIG proxy.config.accept_threads INT 1
+       CONFIG proxy.config.cache.threads_per_disk INT 8
+
+
+.. ts:cv:: CONFIG proxy.config.task_threads INT 2
+
+   Specifies the number of task threads to run. These threads are used for
+   various tasks that should be off-loaded from the normal network threads.
+
+
+.. ts:cv:: CONFIG proxy.config.http.enabled INT 1
+
+   Turn on or off support for HTTP proxying. This is rarely used, the one
+   exception being if you run Traffic Server with a protocol plugin, and would
+   like for it to not support HTTP requests at all.
diff --git a/doc/reference/configuration/remap.config.en.rst b/doc/reference/configuration/remap.config.en.rst
new file mode 100644
index 00000000..e888fb46
--- /dev/null
+++ b/doc/reference/configuration/remap.config.en.rst
@@ -0,0 +1,479 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+============
+remap.config
+============
+
+.. configfile:: remap.config
+
+.. toctree::
+   :maxdepth: 2
+
+
+The :file:`remap.config` file (by default, located in
+``/opt/trafficserver/etc/trafficserver/``) contains mapping rules that Traffic Server
+uses to perform the following actions:
+
+-  Map URL requests for a specific origin server to the appropriate
+   location on Traffic Server when Traffic Server acts as a reverse
+   proxy for that particular origin server
+-  Reverse-map server location headers so that when origin servers
+   respond to a request with a location header that redirects the client
+   to another location, the clients do not bypass Traffic Server
+-  Redirect HTTP requests permanently or temporarily without Traffic
+   Server having to contact any origin servers
+
+Refer to  :ref:`reverse-proxy-and-http-redirects`, for information about
+redirecting HTTP requests and using reverse proxy.
+
+After you modify the :file:`remap.config` run the
+:option:`traffic_line -x` to apply the changes. When you apply the
+changes to one node in a cluster, Traffic Server automatically applies
+the changes to all other nodes in the cluster.
+
+Format
+======
+
+Each line in the :file:`remap.config` file must contain a mapping rule. Empty lines,
+or lines starting with ``#`` are ignored. Each line can be broken up into multiple
+lines for better readability by using ``\`` as continuation marker.
+
+Traffic Server recognizes three space-delimited fields: ``type``,
+``target``, and ``replacement``. The following list describes the format of each field.
+
+.. _remap-config-format-type:
+
+``type``
+    Enter one of the following:
+
+    -  ``map`` --translates an incoming request URL to the appropriate
+       origin server URL.
+
+    -  ``map_with_recv_port`` --exactly like 'map' except that it uses the port at
+       which the request was received to perform the mapping instead of the port present
+       in the request. The regex qualifier can also be used for this type. When present,
+       'map_with_recv_port' mappings are checked first. If there is a match, then it is
+       chosen without evaluating the "regular" forward mapping rules.
+
+    -  ``map_with_referer`` -- extended version of 'map', which can be used to activate
+       "deep linking protection", where target URLs are only accessible when the Referer
+       header is set to a URL that is allowed to link to the target.
+
+    -  ``reverse_map`` --translates the URL in origin server redirect
+       responses to point to the Traffic Server.
+
+    -  ``redirect`` --redirects HTTP requests permanently without having
+       to contact the origin server. Permanent redirects notify the
+       browser of the URL change (by returning an HTTP status code 301)
+       so that the browser can update bookmarks.
+
+    -  ``redirect_temporary`` --redirects HTTP requests temporarily
+       without having to contact the origin server. Temporary redirects
+       notify the browser of the URL change for the current request only
+       (by returning an HTTP status code 307).
+
+       .. note: use the ``regex_`` prefix to indicate that the line has a regular expression (regex).
+
+.. _remap-config-format-target:
+
+``target``
+    Enter the origin ("from") URL. You can enter up to four components: ::
+
+        scheme://host:port/path_prefix
+
+    where ``scheme`` is ``http``.
+
+.. _remap-config-format-replacement:
+
+``replacement``
+    Enter the origin ("from") URL. You can enter up to four components: ::
+
+        scheme://host:port/path_prefix
+
+    where ``scheme`` can be ``http`` or ``https``.
+
+
+.. _remap-config-precedence:
+
+Precedence
+==========
+
+Remap rules are not processed top-down, but based on an internal priority. Once
+these rules are executed we pick the lowest line number as the match (which
+replicates first-match-wins).
+
+1. ``map_with_recv_port`` and ```regex_map_with_recv_port```
+#. ``map`` and ``regex_map`` and ``reverse_map``
+#. ``redirect`` and ``redirect_temporary``
+#. ``regex_redirect`` and ``regex_redirect_temporary``
+
+
+Match-All
+=========
+
+A map rule with a single ``/`` acts as a wildcard, it will match any
+request. This should be use with care, and certainly only once at the
+end of the remap.config file. E.g.
+
+::
+
+    map / http://all.example.com
+
+Examples
+--------
+
+The following section shows example mapping rules in the
+:file:`remap.config` file.
+
+Reverse Proxy Mapping Rules
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following example shows a map rule that does not specify a path
+prefix in the target or replacement: ::
+
+    map http://www.x.com/ http://server.hoster.com/
+    reverse_map http://server.hoster.com/ http://www.x.com/
+
+This rule results in the following translations:
+
+================================================ ========================================================
+Client Request                                   Translated Request
+================================================ ========================================================
+``http://www.x.com/Widgets/index.html``          ``http://server.hoster.com/Widgets/index.html``
+``http://www.x.com/cgi/form/submit.sh?arg=true`` ``http://server.hoster.com/cgi/form/submit.sh?arg=true``
+================================================ ========================================================
+
+The following example shows a map rule with path prefixes specified in
+the target: ::
+
+    map http://www.y.com/marketing/ http://marketing.y.com/
+    reverse_map http://marketing.y.com/ http://www.y.com/marketing/
+    map http://www.y.com/sales/ http://sales.y.com/
+    reverse_map http://sales.y.com/ http://www.y.com/sales/
+    map http://www.y.com/engineering/ http://engineering.y.com/
+    reverse_map http://engineering.y.com/ http://www.y.com/engineering/
+    map http://www.y.com/stuff/ http://info.y.com/
+    reverse_map http://info.y.com/ http://www.y.com/stuff/
+
+These rules result in the following translations:
+
+=============================================================== ==========================================================
+Client Request                                                  Translated Request
+=============================================================== ==========================================================
+``http://www.y.com/marketing/projects/manhattan/specs.html``    ``http://marketing.y.com/projects/manhattan/specs.html``
+``http://www.y.com/stuff/marketing/projects/boston/specs.html`` ``http://info.y.com/marketing/projects/boston/specs.html``
+``http://www.y.com/engineering/marketing/requirements.html``    ``http://engineering.y.com/marketing/requirements.html``
+=============================================================== ==========================================================
+
+The following example shows that the order of the rules matters: ::
+
+    map http://www.g.com/ http://external.g.com/
+    reverse_map http://external.g.com/ http://www.g.com/
+    map http://www.g.com/stuff/ http://stuff.g.com/
+    reverse_map http://stuff.g.com/ http://www.g.com/stuff/
+
+These rules result in the following translation.
+
+================================ =====================================
+Client Request                   Translated Request
+================================ =====================================
+``http://www.g.com/stuff/a.gif`` ``http://external.g.com/stuff/a.gif``
+================================ =====================================
+
+In the above examples, the second rule is never applied because all URLs
+that match the second rule also match the first rule. The first rule
+takes precedence because it appears earlier in the :file:`remap.config`
+file.
+
+The following example shows a mapping with a path prefix specified in
+the target and replacement::
+
+    map http://www.h.com/a/b/ http://server.h.com/customers/x/y
+    reverse_map http://server.h.com/customers/x/y/ http://www.h.com/a/b/
+
+This rule results in the following translation.
+
+===================================== ==================================================
+Client Request                        Translated Request
+===================================== ==================================================
+``http://www.h.com/a/b/c/d/doc.html`` ``http://server.h.com/customers/x/y/c/d/doc.html``
+``http://www.h.com/a/index.html``     ``Translation fails``
+===================================== ==================================================
+
+The following example shows reverse-map rules::
+
+    map http://www.x.com/ http://server.hoster.com/x/
+    reverse_map http://server.hoster.com/x/ http://www.x.com/
+
+These rules result in the following translations.
+
+================================ =====================================
+Client Request                   Translated Request
+================================ =====================================
+``http://www.x.com/Widgets``     ``http://server.hoster.com/x/Widgets``
+================================ =====================================
+
+ 
+
+================================ ======================================= =============================
+Client Request                   Origin Server Header                    Translated Request
+================================ ======================================= =============================
+``http://www.x.com/Widgets``     ``http://server.hoster.com/x/Widgets/`` ``http://www.x.com/Widgets/``
+================================ ======================================= =============================
+
+When acting as a reverse proxy for multiple servers, Traffic Server is
+unable to route to URLs from older browsers that do not send the
+``Host:`` header. As a solution, set the variable :ts:cv:`proxy.config.header.parse.no_host_url_redirect`
+in the :file:`records.config` file to the URL to which Traffic Server will redirect
+requests without host headers.
+
+Redirect Mapping Rules
+~~~~~~~~~~~~~~~~~~~~~~
+
+The following rule permanently redirects all HTTP requests for
+``www.company.com`` to ``www.company2.com``: ::
+
+    redirect http://www.company.com/ http://www.company2.com/
+
+The following rule *temporarily* redirects all HTTP requests for
+``www.company1.com`` to ``www.company2.com``: ::
+
+    redirect_temporary http://www.company1.com/ http://www.company2.com/
+
+.. _remap-config-regex:
+
+Regular Expression (regex) Remap Support
+========================================
+
+Regular expressions can be specified in remapping rules, with the
+limitations below:
+
+-  Only the ``host`` field can contain a regex; the ``scheme``,
+   ``port``, and other fields cannot. For path manipulation via regexes,
+   use the ``regex_remap`` plugin.
+-  The number of capturing subpatterns is limited to 9. This means that
+   ``$0`` through ``$9`` can be used as subtraction placeholders (``$0``
+   will be the entire input string).
+-  The number of substitutions in the expansion string is limited to 10.
+-  There is no ``regex_`` equivalent to ``reverse_remap``, so when using
+   ``regex_remap`` you should make sure the reverse path is clear by
+   setting (:ts:cv:`proxy.config.url_remap.pristine_host_hdr`)
+
+Examples
+--------
+
+::
+
+    regex_map http://x([0-9]+).z.com/ http://real-x$1.z.com/
+    regex_redirect http://old.(.*).z.com http://new.$1.z.com
+
+.. _map_with_referer:
+
+map_with_referer
+================
+
+the format of is the following::
+
+    map_with_referer client-URL origin-server-URL redirect-URL regex1 [regex2 ...]
+
+'redirect-URL' is a redirection URL specified according to RFC 2616 and can
+contain special formatting instructions for run-time modifications of the
+resulting redirection URL.  All regexes Perl compatible  regular expressions,
+which describes the content of the "Referer" header which must be
+verified. In case an actual request does not have "Referer" header or it
+does not match with referer regular expression, the HTTP request will be
+redirected to 'redirect-URL'.
+
+At least one regular expressions must be specified in order to activate
+'deep linking protection'.  There are limitations for the number of referer
+regular expression strings - 2048.  In order to enable the 'deep linking
+protection' feature in Traffic Server, configure records.config with::
+
+    CONFIG proxy.config.http.referer_filter INT 1
+
+In order to enable run-time formatting for redirect URL, configure::
+
+    CONFIG proxy.config.http.referer_format_redirect INT 1
+
+When run-time formatting for redirect-URL was enabled the following format
+symbols can be used::
+
+    %r - to substitute original "Referer" header string
+    %f - to substitute client-URL from 'map_with_referer' record
+    %t - to substitute origin-server-URL from 'map_with_referer' record
+    %o - to substitute request URL to origin server, which was created a
+         the result of a mapping operation
+
+Note: There is a special referer type "~*" that can be used in order to
+specify that the Referer header is optional in the request.  If "~*" referer
+was used in map_with_referer mapping, only requests with Referer header will
+be verified for validity.  If the "~" symbol was specified before referer
+regular expression, it means that the request with a matching referer header
+will be redirected to redirectURL. It can be used to create a so-called
+negative referer list.  If "*" was used as a referer regular expression -
+all referers are allowed.  Various combinations of "*" and "~" in a referer
+list can be used to create different filtering rules.
+
+map_with_referer Examples
+-------------------------
+
+::
+
+   map_with_referer http://y.foo.bar.com/x/yy/  http://foo.bar.com/x/yy/ http://games.bar.com/new_games .*\.bar\.com www.bar-friends.com
+
+Explanation: Referer header must be in the request, only ".*\.bar\.com" and "www.bar-friends.com" are allowed.
+
+::
+
+   map_with_referer http://y.foo.bar.com/x/yy/  http://foo.bar.com/x/yy/ http://games.bar.com/new_games * ~.*\.evil\.com
+
+Explanation: Referer header must be in the request but all referers are allowed except ".*\.evil\.com".
+
+::
+
+    map_with_referer http://y.foo.bar.com/x/yy/  http://foo.bar.com/x/yy/ http://games.bar.com/error ~* * ~.*\.evil\.com
+
+Explanation: Referer header is optional. However, if Referer header exists, only request from ".*\.evil\.com" will be redirected to redirect-URL.
+
+
+.. _remap-config-plugin-chaining:
+
+Plugin Chaining
+===============
+
+Plugins can be configured to be evaluated in a specific order, passing
+the results from one in to the next (unless a plugin returns 0, then the
+"chain" is broken).
+
+Examples
+--------
+
+::
+
+    map http://url/path http://url/path \
+        @plugin=/etc/traffic_server/config/plugins/plugin1.so @pparam=1 @pparam=2 \
+        @plugin=/etc/traffic_server/config/plugins/plugin2.so @pparam=3
+
+will pass "1" and "2" to plugin1.so and "3" to plugin2.so.
+
+This will pass "1" and "2" to plugin1.so and "3" to plugin2.so
+
+.. _remap-config-named-filters:
+
+Acl Filters
+===========
+
+Acl filters can be created to control access of specific remap lines. The markup
+is very similar to that of :file:`ip_allow.config`, with slight changes to
+accomodate remap markup
+
+Examples
+--------
+
+::
+    map http://foo.example.com/neverpost  http://foo.example.com/neverpost @action=deny @method=post
+    map http://foo.example.com/onlypost  http://foo.example.com/onlypost @action=allow @method=post
+
+    map http://foo.example.com/  http://foo.example.com/ @action=deny @src_ip=1.2.3.4
+    map http://foo.example.com/  http://foo.example.com/ @action=allow @src_ip=127.0.0.1
+
+    map http://foo.example.com/  http://foo.example.com/ @action=allow @src_ip=127.0.0.1 @method=post @method=get @method=head
+
+Note that these Acl filters will return a 403 response if the resource is restricted.
+
+Named Filters
+=============
+
+Named filters can be created and applied to blocks of mappings using
+the ``.definefilter``, ``.activatefilter``, and ``.deactivatefilter``
+directives. Named filters must be defined using ``.definefilter`` before
+being used. Once defined, ``.activatefilter`` can used to activate a
+filter for all mappings that follow until deactivated with
+``.deactivatefilter``.
+
+Examples
+--------
+
+::
+
+    .definefilter disable_delete_purge @action=deny @method=delete @method=purge
+    .definefilter internal_only @action=allow @src_ip=192.168.0.1-192.168.0.254 @src_ip=10.0.0.1-10.0.0.254
+
+    .activatefilter disable_delete_purge
+
+    map http://foo.example.com/ http://bar.example.com/
+
+    .activatefilter internal_only
+    map http://www.example.com/admin http://internal.example.com/admin
+    .deactivatefilter internal_only
+
+    map http://www.example.com/ http://internal.example.com/
+
+The filter `disable_delete_purge` will be applied to all of the
+mapping rules. (It is activated before any mappings and is never
+deactivated.) The filter `internal_only` will only be applied to the
+second mapping.
+
+Including Additional Remap Files
+================================
+
+The ``.include`` directive allows mapping rules to be spread across
+multiple files. The argument to the ``.include`` directive is a
+list of file names to be parsed for additional mapping rules. Unless
+the names are absolute paths, they are resolved relative to the
+Traffic Server configuration directory.
+
+The effect of the ``.include`` directive is as if the contents of
+the listed files is included in the parent and parsing restarted
+at the point of inclusion. This means that and filters named in the
+included files are global in scope, and that additional ``.include``
+directives are allowed.
+
+.. note::
+
+  Included remap files are not currently tracked by the configuration
+  subsystem. Changes to included remap files will not be noticed
+  by online configuration changes applied by :option:`traffic_line -x`
+  unless :file:`remap.config` has also changed.
+
+Examples
+--------
+
+In this example, a top-level :file:`remap.config` file simply
+references additional mapping rules files ::
+
+  .include filters.config
+  .include one.example.com.config two.example.com.config
+
+The file `filters.config` contains ::
+
+  .definefilter deny_purge @action=deny @method=purge
+  .definefilter allow_purge @action=allow @method=purge
+
+The file `one.example.com.config` contains::
+
+  .activatefilter deny_purge
+  map http://one.example.com http://origin-one.example.com
+  .deactivatefilter deny_purge
+
+The file `two.example.com.config` contains::
+
+  .activatefilter allow_purge
+  map http://two.example.com http://origin-two.example.com
+  .deactivatefilter dallowpurge
+
diff --git a/doc/reference/configuration/splitdns.config.en.rst b/doc/reference/configuration/splitdns.config.en.rst
new file mode 100644
index 00000000..343a7f1c
--- /dev/null
+++ b/doc/reference/configuration/splitdns.config.en.rst
@@ -0,0 +1,129 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+===============
+splitdns.config
+===============
+
+.. configfile:: splitdns.config
+
+The :file:`splitdns.config` file enables you to specify the DNS server that
+Traffic Server should use for resolving hosts under specific conditions.
+For more information, refer to :ref:`configuring-dns-server-selection-split-dns`.
+
+To specify a DNS server, you must supply the following information in
+each active line within the file:
+
+-  A primary destination specifier in the form of a destination domain,
+   a destination host, or a URL regular expression
+-  A set of server directives, listing one or more DNS servers with
+   corresponding port numbers
+
+You can also include the following optional information with each DNS
+server specification:
+
+-  A default domain for resolving hosts
+-  A search list specifying the domain search order when multiple
+   domains are specified
+
+After you modify the :file:`splitdns.config` file,
+run the :option:`traffic_line -x`
+command to apply the changes. When you apply changes to a node in a
+cluster, Traffic Server automatically applies the changes to all other
+nodes in the cluster.
+
+Format
+======
+
+Each line in the :file:`splitdns.config` file uses one of the following
+formats: ::
+
+    dest_domain=dest_domain | dest_host | url_regex named=dns_server def_domain=def_domain search_list=search_list
+
+The following list describes each field.
+
+.. _splitdns-config-format-dest-domain:
+
+``dest_domain``
+    A valid domain name. This specifies that DNS server selection will
+    be based on the destination domain. You can prefix the domain with
+    an exclamation mark (``!``) to indicate the NOT logical operator.
+
+.. _splitdns-config-format-dest-host:
+
+``dest_host``
+    A valid hostname. This specifies that DNS server selection will be
+    based on the destination host. You can prefix the host with an
+    exclamation mark (``!``) to indicate the ``NOT`` logical operator.
+
+.. _splitdns-config-format-url-regex:
+
+``url_regex``
+    A valid URL regular expression. This specifies that DNS server
+    selection will be based on a regular expression.
+
+.. _splitdns-config-format-dns-server:
+
+``dns_server``
+    This is a required directive. It identifies the DNS server that
+    Traffic Server should use with the given destination specifier. You
+    can specify a port using a colon (``:``). If you do not specify a
+    port, then 53 is used. Specify multiple DNS servers with spaces or
+    semicolons (``;``) as separators.
+
+    You must specify the domains with IP addresses in CIDR ("dot")
+    notation.
+
+.. _splitdns-config-format-def-domain:
+
+``def_domain``
+    A valid domain name. This optional directive specifies the default
+    domain name to use for resolving hosts. Only one entry is allowed.
+    If you do not provide the default domain, the system determines its
+    value from ``/etc/resolv.conf``
+
+.. _splitdns-config-format-search-list:
+
+``search_list``
+    A list of domains separated by spaces or semicolons (;). This
+    specifies the domain search order. If you do not provide the search
+    list, the system determines the value from :manpage:`resolv.conf(5)`
+
+Examples
+========
+
+Consider the following DNS server selection specifications: ::
+
+      dest_domain=internal.company.com named=255.255.255.255:212 255.255.255.254 def_domain=company.com search_list=company.com company1.com
+      dest_domain=!internal.company.com named=255.255.255.253
+
+Now consider the following two requests: ::
+
+     http://minstar.internal.company.com
+
+This request matches the first line and therefore selects DNS server
+``255.255.255.255`` on port ``212``. All resolver requests use
+``company.com`` as the default domain, and ``company.com`` and
+``company1.com`` as the set of domains to search first. ::
+
+     http://www.microsoft.com
+
+This request matches the second line. Therefore, Traffic Server selects
+DNS server ``255.255.255.253``. Because no ``def_domain`` or
+``search_list`` was supplied, Traffic Server retrieves this information
+from :manpage:`resolv.conf(5)`
+
diff --git a/doc/reference/configuration/ssl_multicert.config.en.rst b/doc/reference/configuration/ssl_multicert.config.en.rst
new file mode 100644
index 00000000..a895f0f4
--- /dev/null
+++ b/doc/reference/configuration/ssl_multicert.config.en.rst
@@ -0,0 +1,191 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+====================
+ssl_multicert.config
+====================
+
+.. configfile:: ssl_multicert.config
+
+The :file:`ssl_multicert.config` file lets you configure Traffic
+Server to use multiple SSL server certificates to terminate the SSL
+sessions. If you have a Traffic Server system with more than one
+IP address assigned to it, then you can assign a different SSL
+certificate to be served when a client requests a particular IP
+address or host name.
+
+At configuration time, certificates are parsed to extract the
+certificate subject and all the DNS `subject alternative names
+<http://en.wikipedia.org/wiki/SubjectAltName>`_.  A certificate
+will be presented for connections requesting any of the hostnames
+found in the certificate. Wildcard names are supported, but only
+of the form `*.domain.com`, ie. where `*` is the leftmost domain
+component.
+
+Changes to :file:`ssl_multicert.config` can be applied to a running
+Traffic Server using :option:`traffic_line -x`.
+
+Format
+======
+
+Each :file:`ssl_multicert.config` line consists of a sequence of
+`key=value` fields that specify how Traffic Server should use a
+particular SSL certificate.
+
+ssl_cert_name=FILENAME
+  The name of the file containing the TLS certificate. `FILENAME` is
+  located relative to the directory specified by the
+  :ts:cv:`proxy.config.ssl.server.cert.path` configuration variable.
+  This is the only field that is required to be present.
+
+dest_ip=ADDRESS (optional)
+  The IP (v4 or v6) address that the certificate should be presented
+  on. This is now only used as a fallback in the case that the TLS
+  SubjectNameIndication extension is not supported. If `ADDRESS` is
+  `*`, the corresponding certificate will be used as the global
+  default fallback if no other match can be made. The address may
+  contain a port specifier, in which case the corresponding certificate
+  will only match for connections accepted on the specified port.
+  IPv6 addresses must be enclosed by square brackets if they have
+  a port, eg, [::1]:80. Care should be taken to make each ADDRESS unique.
+
+ssl_key_name=FILENAME (optional)
+  The name of the file containing the private key for this certificate.
+  If the key is contained in the certificate file, this field can
+  be omitted, otherwise `FILENAME` is resolved relative to the
+  :ts:cv:`proxy.config.ssl.server.private_key.path` configuration variable.
+
+ssl_ca_name=FILENAME (optional)
+  If the certificate is issued by an authority that is not in the
+  system CA bundle, additional certificates may be needed to validate
+  the certificate chain. `FILENAME` is resolved relative to the
+  :ts:cv:`proxy.config.ssl.CA.cert.path` configuration variable.
+
+ssl_ticket_enabled=1|0 (optional)
+  Enable :rfc:`5077` stateless TLS session tickets. To support this,
+  OpenSSL should be upgraded to version 0.9.8f or higher. This
+  option must be set to `0` to disable session ticket support.
+
+ticket_key_name=FILENAME (optional)
+  The name of session ticket key file which contains a secret for
+  encrypting and decrypting TLS session tickets. If `FILENAME` is
+  not an absolute path, it is resolved relative to the
+  :ts:cv:`proxy.config.ssl.server.cert.path` configuration variable.
+  This option has no effect if session tickets are disabled by the
+  ``ssl_ticket_enabled`` option.  The contents of the key file should
+  be 48 random bytes.
+
+  Session ticket support is enabled by default. If neither of the
+  ``ssl_ticket_enabled`` and ``ticket_key_name`` options are
+  specified, and internal session ticket key is generated. This
+  key will be different each time Traffic Server is started.
+
+ssl_key_dialog=builtin|"exec:/path/to/program [args]" (optional)
+  Method used to provide a pass phrase for encrypted private keys.  If the
+  pass phrase is incorrect, SSL negotiation for this dest_ip will fail for
+  clients who attempt to connect.
+  Two options are supported: builtin and exec:
+
+    ``builtin`` - Requests pass phrase via stdin/stdout. User will be
+      provided the ssl_cert_name and be prompted for the pass phrase.
+      Useful for debugging.
+
+    ``exec:`` - Executes program /path/to/program and passes args, if
+      specified, to the program and reads the output from stdout for
+      the pass phrase.  If args are provided then the entire exec: string
+      must be quoted with "" (see examples).  Arguments with white space
+      are supported by single quoting (').  The intent is that this
+      program runs a security check to ensure that the system is not
+      compromised by an attacker before providing the pass phrase.
+
+Certificate Selection
+=====================
+
+Traffic Server attempts two certificate selections during SSL
+connection setup. An initial selection is made when a TCP connection
+is accepted. This selection examines the IP address and port that
+the client is connecting to and chooses the best certificate from
+the those that have a ``dest_ip`` specification. If no matching
+certificates are found, a default certificate is chosen.  The final
+certificate selection is made during the SSL handshake.  At this
+point, the client may use `Server Name Indication
+<http://en.wikipedia.org/wiki/Server_Name_Indication>`_ to request
+a specific hostname. Traffic Server will use this request to select
+a certificate with a matching subject or subject alternative name.
+Failing that, a wildcard certificate match is attempted. If no match
+can be made, the initial certificate selection remains in force.
+
+In all cases, Traffic Server attempts to select the most specific
+match. An address specification that contains a port number will
+take precedence over a specification that does not contain a port
+number. A specific certificate subject will take precedence over a
+wildcard certificate.
+
+Examples
+========
+
+The following example configures Traffic Server to use the SSL
+certificate ``server.pem`` for all requests to the IP address
+111.11.11.1 and the SSL certificate ``server1.pem`` for all requests
+to the IP address 11.1.1.1. Connections from all other IP addresses
+are terminated with the ``default.pem`` certificate.
+Since the private key is included in the certificate files, no
+private key name is specified.
+
+::
+
+    dest_ip=111.11.11.1 ssl_cert_name=server.pem
+    dest_ip=11.1.1.1 ssl_cert_name=server1.pem
+    dest_ip=* ssl_cert_name=default.pem
+
+The following example configures Traffic Server to use the SSL
+certificate ``server.pem`` and the private key ``serverKey.pem``
+for all requests to port 8443 on IP address 111.11.11.1. The
+``general.pem`` certificate is used for server name matches.
+
+::
+
+     dest_ip=111.11.11.1:8443 ssl_cert_name=server.pem ssl_key_name=serverKey.pem ssl_cert_name=general.pem
+
+The following example configures Traffic Server to use the SSL
+certificate ``server.pem`` for all requests to the IP address
+111.11.11.1. Session tickets are enabled with a persistent ticket
+key.
+
+::
+
+    dest_ip=111.11.11.1 ssl_cert_name=server.pem ssl_ticket_enabled=1 ticket_key_name=ticket.key
+
+The following example configures Traffic Server to use the SSL
+certificate ``server.pem`` and disable session tickets for all
+requests to the IP address 111.11.11.1.
+
+::
+
+    dest_ip=111.11.11.1 ssl_cert_name=server.pem ssl_ticket_enabled=0
+
+The following examples configure Traffic Server to use the SSL
+certificate ``server.pem`` which includes an encrypted private key.
+The external program /usr/bin/mypass will be called on startup with one
+parameter (foo) in the first example, and with two parameters (foo)
+and (ba r) in the second example, the program (mypass) will return the
+pass phrase to decrypt the keys.
+
+::
+
+    ssl_cert_name=server1.pem ssl_key_dialog="exec:/usr/bin/mypass foo"
+    ssl_cert_name=server2.pem ssl_key_dialog="exec:/usr/bin/mypass foo 'ba r'"
diff --git a/doc/reference/configuration/storage.config.en.rst b/doc/reference/configuration/storage.config.en.rst
new file mode 100644
index 00000000..9236344e
--- /dev/null
+++ b/doc/reference/configuration/storage.config.en.rst
@@ -0,0 +1,146 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+==============
+storage.config
+==============
+
+.. configfile:: storage.config
+
+The :file:`storage.config` file (by default, located in 
+``/opt/trafficserver/etc/trafficserver/``) lists all the files, directories, and/or
+hard disk partitions that make up the Traffic Server cache. After you
+modify the :file:`storage.config` file, you must restart Traffic Server.
+
+Format
+======
+
+The format of the :file:`storage.config` file is::
+
+   pathname size volume=volume_number
+
+where :arg:`pathname` is the name of a partition, directory or file, :arg:`size`
+is the size of the named partition, directory or file (in bytes), and
+:arg:`volume` is the volume number that is used in :file:`volume.config`
+and :file:`hosting.config`. You must specify a size for directories or
+files; size is optional for raw partitions. :arg:`volume` is optional.
+
+You can use any partition of any size. For best performance:
+
+-  Use raw disk partitions.
+-  For each disk, make all partitions the same size.
+-  For each node, use the same number of partitions on all disks.
+-  Group similar kinds of storage into different volumes. For example
+   split out SSD's or RAM drives into their own volume.
+
+Specify pathnames according to your operating system requirements. See
+the following examples. In the :file:`storage.config` file, a formatted or
+raw disk must be at least 128 MB.
+
+When using raw disk or partitions, you should make sure the :ts:cv:`Traffic
+Server user <proxy.config.admin.user_id>` used by the Traffic Server process
+has read and write privileges on the raw disk device or partition. One good
+practice is to make sure the device file is set with 'g+rw' and the Traffic
+Server user is in the group which owns the device file.  However, some
+operating systems have stronger requirements - see the following examples for
+more information.
+
+As with standard ``records.config`` integers, human readable prefixes are also
+supported. They include
+
+   - ``K`` Kilobytes (1024 bytes)
+   - ``M`` Megabytes (1024^2 or 1,048,576 bytes)
+   - ``G`` Gigabytes (1024^3 or 1,073,741,824 bytes)
+   - ``T`` Terabytes (1024^4 or 1,099,511,627,776 bytes)
+
+
+Examples
+========
+
+The following basic example shows 128 MB of cache storage in the
+``/big_dir`` directory::
+
+   /big_dir 134217728
+
+You can use the ``.`` symbol for the current directory. Here is an
+example for 64 MB of cache storage in the current directory::
+
+   . 134217728
+
+As an alternative, using the human readable prefixes, you can express a 64GB
+cache file with::
+
+   /really_big_dir 64G
+
+
+.. note::
+    When using on-filesystem cache disk storage, you can only have one such
+    directory specified. This will be address in a future version.
+   
+
+Solaris Example
+---------------
+
+The following example is for the Solaris operating system::
+
+   /dev/rdsk/c0t0d0s5
+   /dev/rdsk/c0t0d1s5
+
+.. note:: Size is optional. If not specified, the entire partition is used.
+
+Linux Example
+-------------
+
+The following example will use an entire raw disk in the Linux operating
+system::
+
+   /dev/sde volume=1
+   /dev/sdf volume=2
+
+In order to make sure :program:`traffic_server` will have access to this disk
+you can use :manpage:`udev(7)` to persistently set the right permissions. The
+following rules are targeted for an Ubuntu system, and stored in
+``/etc/udev/rules.d/51-cache-disk.rules``::
+
+   # Assign /dev/sde and /dev/sdf to the tserver group
+   # make the assignment final, no later changes allowed to the group!
+   SUBSYSTEM=="block", KERNEL=="sd[ef]", GROUP:="tserver"
+
+In order to apply these settings, trigger a reload with :manpage:`udevadm(8)`:::
+
+   udevadm trigger --subsystem-match=block
+
+
+FreeBSD Example
+---------------
+
+Starting with 5.1 FreeBSD dropped support for explicit raw devices. All
+devices on FreeBSD can be accessed raw now.
+
+The following example will use an entire raw disk in the FreeBSD
+operating system::
+
+   /dev/ada1
+   /dev/ada2
+
+In order to make sure :program:`traffic_server` will have access to this disk
+you can use :manpage:`devfs(8)` to persistently set the right permissions. The
+following rules are stored in :manpage:`devfs.conf(5)`::
+
+   # Assign /dev/ada1 and /dev/ada2 to the tserver user
+   own    ada[12]  tserver:tserver
+
diff --git a/doc/reference/configuration/update.config.en.rst b/doc/reference/configuration/update.config.en.rst
new file mode 100644
index 00000000..33a79317
--- /dev/null
+++ b/doc/reference/configuration/update.config.en.rst
@@ -0,0 +1,213 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+=============
+update.config
+=============
+
+.. configfile:: update.config
+
+The :file:`update.config` file controls how Traffic Server performs a
+scheduled update of specific local cache content. The file contains a
+list of URLs specifying objects that you want to schedule for update.
+
+A scheduled update performs a local HTTP ``GET`` on the objects at the
+specific time or interval. You can control the following parameters for
+each specified object:
+
+-  The URL
+-  URL-specific request headers, which overrides the default
+-  The update time and interval
+-  The recursion depth
+
+After you modify the :file:`update.config` file,
+run the :option:`traffic_line -x`
+command to apply changes. When you apply changes to one node in a
+cluster, Traffic Server automatically applies the changes to all other
+nodes in the cluster.
+
+Supported Tag/Attribute Pairs
+=============================
+
+Scheduled update supports the following tag/attribute pairs when
+performing recursive URL updates:
+
+-  ``<a href=" ">``
+-  ``<img src=" ">``
+-  ``<img href=" ">``
+-  ``<body background=" ">``
+-  ``<frame src=" ">``
+-  ``<iframe src=" ">``
+-  ``<fig src=" ">``
+-  ``<overlay src=" ">``
+-  ``<applet code=" ">``
+-  ``<script src=" ">``
+-  ``<embed src=" ">``
+-  ``<bgsound src=" ">``
+-  ``<area href=" ">``
+-  ``<base href=" ">``
+-  ``<meta content=" ">``
+
+Scheduled update is designed to operate on URL sets consisting of
+hundreds of input URLs (expanded to thousands when recursive URLs are
+included); it is *not* intended to operate on extremely large URL sets,
+such as those used by Internet crawlers.
+
+Format
+======
+
+Each line in the :file:`update.config` file uses the following format::
+
+    URL\request_headers\offset_hour\interval\recursion_depth\
+
+The following list describes each field.
+
+.. _update-config-format-url:
+
+*URL*
+    HTTP-based URLs.
+
+.. _update-config-format-request-headers:
+
+*request_headers*
+    Optional. A list of headers, separated by semicolons, passed in each
+    ``GET`` request. You can define any request header that conforms to
+    the HTTP specification; the default is no request header.
+
+.. _update-config-format-offset-hour:
+
+*offset_hour*
+    The base hour used to derive the update periods. The range is 00-23
+    hours.
+
+.. _update-config-format-interval:
+
+*interval*
+    The interval (in seconds) at which updates should occur, starting at
+    the offset hour.
+
+.. _update-config-format-reecursion-depth:
+
+*recursion_depth*
+    The depth to which referenced URLs are recursively updated, starting
+    at the given URL. This field applies only to HTTP.
+
+Examples
+========
+
+An example HTTP scheduled update is provided below:
+
+::
+
+    http://www.company.com\User-Agent: noname user agent\13\3600\5\
+
+The example specifies the URL and request headers, an offset hour of 13
+(1 pm), an interval of one hour, and a recursion depth of 5. This would
+result in updates at 13:00, 14:00, 15:00, and so on. To schedule an
+update that occurs only once a day, use an interval value 86400 (i.e.,
+24 hours x 60 minutes x 60 seconds = 86400).
+
+.. XXX: The following seems misplaced here, and is probably better off placed in an apendix.
+
+Specifying URL Regular Expressions (``url_regex``)
+==================================================
+
+This section describes how to specify a ``url_regex``. Entries of type
+``url_regex`` within the configuration files use regular expressions to
+perform a match.
+
+The following list provides examples to show how to create a valid
+``url_regex``.
+
+``x``
+    Matches the character ``x``
+
+``.``
+    Match any character
+
+``^``
+    Specifies beginning of line
+
+``$``
+    Specifies end of line
+
+``[xyz]``
+    A **character class**. In this case, the pattern matches either
+    ``x``, ``y``, or\ ``z``
+
+``[abj-oZ]``
+    A **character class** with a range. This pattern matches ``a``,
+    ``b``, any letter from ``j`` through ``o``, or ``Z``
+
+``[^A-Z]``
+    A **negated character class**. For example, this pattern matches any
+    character except those in the class.
+
+``r*``
+    Zero or more ``r``, where ``r`` is any regular expression.
+
+``r+``
+    One or more ``r``, where ``r`` is any regular expression.
+
+``r?``
+    Zero or one ``r``, where ``r`` is any regular expression.
+
+``r{2,5}``
+    From two to five ``r``, where ``r`` is any regular expression.
+
+``r{2,}``
+    Two or more ``r``, where ``r`` is any regular expression.
+
+``r{4}``
+    Exactly four ``r``, where ``r`` is any regular expression.
+
+``"[xyz]\"images"``
+    The literal string ``[xyz]"images"``
+
+``\X``
+    If ``X`` is ``a, b, f, n, r, t,`` or ``v``, then the ``ANSI-C``
+    interpretation of ``\x``; otherwise, a literal ``X``. This is used
+    to escape operators such as ``*``
+
+``\0``
+    A ``NULL`` character
+
+``\123``
+    The character with octal value ``123``
+
+``\x2a``
+    The character with hexadecimal value ``2a``
+
+``(r)``
+    Matches an ``r``, where ``r`` is any regular expression. You can use
+    parentheses to override precedence.
+
+``rs``
+    The regular expression ``r``, followed by the regular expression
+    ``s``
+
+``r|s``
+    Either an ``r`` or an ``s``
+
+``#<n>#``
+    Inserts an **end node**, which causes regular expression matching to
+    stop when reached. The value ``n`` is returned.
+
+You can specify ``dest_domain=mydomain.com`` to match any host in
+``mydomain.com``. Likewise, you can specify ``dest_domain=.`` to match
+any request.
+
diff --git a/doc/reference/configuration/volume.config.en.rst b/doc/reference/configuration/volume.config.en.rst
new file mode 100644
index 00000000..7c6d5945
--- /dev/null
+++ b/doc/reference/configuration/volume.config.en.rst
@@ -0,0 +1,69 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+=============
+volume.config
+=============
+
+.. configfile:: volume.config
+
+The :file:`volume.config` file enables you to manage your cache space more
+efficiently and restrict disk usage by creating cache volumes of
+different sizes for specific protocols. You can further configure these
+volumes to store data from certain origin servers and/or domains in the
+:file:`hosting.config` file.
+
+.. important::
+
+    The volume configuration must be the same on all nodes in
+    a cluster. You must stop Traffic Server before you change the cache
+    volume size and protocol assignment. For step-by-step instructions about
+    partitioning the cache, refer to :ref:`partitioning-the-cache`.
+
+Format
+======
+
+For each volume you want to create, enter a line with the following
+format: ::
+
+    volume=volume_number  scheme=protocol_type  size=volume_size
+
+where ``volume_number`` is a number between 1 and 255 (the maximum
+number of volumes is 255) and ``protocol_type`` is ``http``. Traffic
+Server supports ``http`` for HTTP volume types; ``volume_size`` is the
+amount of cache space allocated to the volume. This value can be either
+a percentage of the total cache space or an absolute value. The absolute
+value must be a multiple of 128 MB, where 128 MB is the smallest value.
+If you specify a percentage, then the size is rounded down to the
+closest multiple of 128 MB.
+
+Each volume is striped across several disks to achieve parallel I/O. For
+example: if there are four disks, then a 1-GB volume will have 256 MB on
+each disk (assuming each disk has enough free space available). If you
+do not allocate all the disk space in the cache, then the extra disk
+space is not used. You can use the extra space later to create new
+volumes without deleting and clearing the existing volumes.
+
+Examples
+========
+
+The following example partitions the cache evenly between HTTP and HTTPS
+requests::
+
+    volume=1 scheme=http size=50%
+    volume=2 scheme=https size=50%
+
diff --git a/doc/reference/plugins/authproxy.en.rst b/doc/reference/plugins/authproxy.en.rst
new file mode 100644
index 00000000..e2241a12
--- /dev/null
+++ b/doc/reference/plugins/authproxy.en.rst
@@ -0,0 +1,91 @@
+.. _authproxy-plugin:
+
+AuthProxy Plugin
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+There are many ways of authorizing an HTTP request. Often, this
+requires making IPC calls to some internal infrastructure. ``AuthProxy``
+is a plugin that takes care of the Traffic Server end of authorizing
+a request and delegates the authorization decision to an external
+HTTP service.
+
+This plugin can be used as either a global plugin or a remap plugin.
+
+Note that Traffic Server optimizes latency by skipping the DNS
+lookup state if a document is found in the cache. This will have
+the effect of serving the document without consulting the ``AuthProxy``
+plugin. you can disable this behavior by setting
+:ts:cv:`proxy.config.http.doc_in_cache_skip_dns` to ``0`` in
+:file:`records.config`.
+
+Plugin Options
+--------------
+
+--auth-transform=TYPE
+  This option specifies how to route the incoming request to the
+  authorization service. The transform type may be ``head`` or
+  ``redirect``.
+
+  If the transform type is ``head``, then the incoming request is
+  transformed to a HEAD request and is sent to the same destination.
+  If the response is ``200 OK``, the incoming request is allowed
+  to proceed.
+
+  If the transform type is ``redirect`` then the incoming
+  request is sent to the authorization service designated by the
+  `--auth-host` and `--auth-port` parameters. If the response is
+  200 OK, the incoming request is allowed to proceed.
+
+  When the authorization service responds with a status other than
+  200 OK, that response is returned to the client as the response to
+  the incoming request. This allows mechanisms such as HTTP basic
+  authentication to work correctly. Note that the body of the
+  authorization service response is not returned to the client.
+
+--auth-host=HOST
+  The name or address of the authorization host. This is only used
+  by the ``redirect`` transform.
+
+--auth-port=PORT
+  The TCP port of the authorization host. This is only used by the
+  ``redirect`` transform.
+
+--force-cacheability
+  If this options is set, the plugin will allow Traffic Server to
+  cache the result of authorized requests. In the normal case, requests
+  with authorization headers are nor cacheable, but this flag allows
+  that by setting the :ts:cv:`proxy.config.http.cache.ignore_authentication`
+  option on the request.
+
+Examples
+--------
+
+In this example, the authentication is performed by converting the incoming
+HTTP request to a `HEAD` request and sending that to the origin server
+`origin.internal.com`::
+
+  map http://cache.example.com http://origin.internal.com/ \
+    @plugin=authproxy.so @pparam=--auth-transform=head
+
+In this example, the request is directed to a local authentication server
+that authorizes the request based on internal policy rules::
+
+  map http://cache.example.com http://origin.internal.com/ \
+    @plugin=authproxy.so @pparam=--auth-transform=redirect @pparam=--auth-host=127.0.0.1 @pparam=--auth-port=9000
diff --git a/doc/reference/plugins/background_fetch.en.rst b/doc/reference/plugins/background_fetch.en.rst
new file mode 100644
index 00000000..3df7d3c5
--- /dev/null
+++ b/doc/reference/plugins/background_fetch.en.rst
@@ -0,0 +1,73 @@
+.. _background-fetch-plugin:
+
+Background Fetch Plugin
+***********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This is a plugin for Apache Traffic Server that allows you to proactively
+fetch content from Origin in a way that it will fill the object into
+cache. This is particularly useful when all (or most) of your client requests
+are of the byte-Range type. The underlying problem being that Traffic Server
+is not able to cache request / responses with byte ranges.
+
+Using the plugin
+----------------
+
+This plugin currently only functions as a global plugin, and it takes not
+arguments or parameters. In :file:`plugin.config`, simply add::
+
+  background_fetch.so
+
+
+Functionality
+-------------
+
+Examining the responses from origin, we decide to trigger a background fetch
+of the original (Client) request under these conditions:
+
+- The request is a ``GET`` request (we only support these right now)
+- The response is a ``206`` response
+- The original client request, and the Origin server response, is clearly
+  indicating that the response is cacheable. This uses the new API
+  c:func:`TSHttpTxnIsCacheable()`, which also implies honoring current
+  Traffic Server configurations.
+
+
+Once deemed a good candidate to performance a background fetch, we'll replay
+the original client request through the Traffic Server proxy again, except
+this time eliminating the ``Range`` header. This is transparent to the
+original client request, which continues as normal.
+
+Only one background fetch per URL is ever performed, making sure we do not
+accidentally put pressure on the origin servers.
+
+
+
+Future additions
+----------------
+
+The infrastructure is in place for providing global and per-remap
+configurations. This could include:
+
+- Limiting the background fetches to certain Content-Types
+- Limiting the background fetches to content of certain sizes
+
+
+None of this is currently not implemented.
diff --git a/doc/reference/plugins/balancer.en.rst b/doc/reference/plugins/balancer.en.rst
new file mode 100644
index 00000000..a31c1aa2
--- /dev/null
+++ b/doc/reference/plugins/balancer.en.rst
@@ -0,0 +1,75 @@
+.. _balancer-plugin:
+
+Balancer Plugin
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+The ``balancer`` balances requests across multiple origin servers.
+To use this plugin, configure it in a :file:`remap.config` rule, specifying
+a balancing policy and a set of origin servers. For example::
+
+   map http://foo.com http://foo.com \
+      @plugin=balancer.so @pparam=--policy=hash,url @pparam=one.bar.com @pparam=two.bar.com
+
+The ``replacement`` URL in the mapping rule is not used. The argument
+to the ``--policy`` option is a comma-separated list of keywords.
+The first keyword is the name of a balancing policy. The subsequent
+keywords are used to refine the requested policy.
+
+Hash Balancing Policy
+---------------------
+
+The ``hash`` balancing policy performs a consistent hash across the
+set of origins. This minimizes the number of hash entries that must
+be moved when the set of origin servers changes. An optional list
+of hash fields follows the ``hash`` keyword. Each specified hash
+field is hashed to select an outbound origin server.
+
+The following fields can be supplied to the hash:
+
+key
+  The request cache key. Note that the cache key will only be
+  set if you have already chained a plugin that sets a custom
+  cache key.
+
+url
+  The request URL. This is the default hash field that is used if
+  no other fields are specified.
+
+srcaddr
+  The source IP address of the request.
+
+Round Robin Balancing Policy
+----------------------------
+
+The ``roundrobin`` balancing policy simply allocates requests to
+origin servers in order. Over time, the number of requests received
+by each origin should be approximately the same.
+
+Health Checking
+---------------
+
+The ``balancer`` plugin does not check the health of the origin
+servers, however the plugin is fully reloadable so health checking
+is usualy simple to implement. Most production environments already
+have mechanisms to check service health. It is recommended that you
+write a simple script to monitor this information and rewrite
+:file:`remap.config` when appropriate. Running :option:`traffic_line -x`
+will reload the ``balancer`` plugin with the new set of origin servers.
diff --git a/doc/reference/plugins/buffer_upload.en.rst b/doc/reference/plugins/buffer_upload.en.rst
new file mode 100644
index 00000000..7ae04bd9
--- /dev/null
+++ b/doc/reference/plugins/buffer_upload.en.rst
@@ -0,0 +1,82 @@
+.. _buffer-upload-plugin:
+
+Buffer Upload Plugin
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The Buffer Upload plugin offers the following features
+
+Installation
+============
+
+Configuration can be explicitly specified as a parameter in ``plugin.config`` ::
+
+    buffer_upload.so /FOOBAR/upload.conf
+
+Memory buffering (buffer the entire POST data in IOBuffer before connecting to OS)
+==================================================================================
+
+Memory buffer size is configured with "mem_buffer_size" in config file. Default and minimum value is 32K. You can
+increase it in the config file. If the size of a request is larger than the "mem_buffer_size" value specifiied in the
+config file, then the upload proxy feature will be disabled for this particular request
+
+Disk buffering (buffer the entire POST data on disk before connecting to OS)
+============================================================================
+
+1. Disk async IO is used. AIO api call only involves certain amount of threads. The number of threads is configurable in
+plugin's config file (default is 4)
+
+2. Directories and files are generated on disk . Base directory is /FOOBAR/var/buffer_upload_tmp/ (configurable in
+config file). Number of subdirectories is 64 (configurable in config file). Filename are randomly generated. Files will
+be removed when the entire data have been sent out to OS . At startup time, dangling files are removed (left on disk due
+to transaction interruption or traffic server crash)
+
+3. Default chunk size when reading from disk is 16K, configurable in config file
+
+Trigger POST buffering on certain URLs
+======================================
+
+1. Certain URLs will be provided in a plain text file (one URL each line) 
+2. Specify filename in config file by "url_list_file" 
+3. max length of each URL is 4096 (configurable in config file) 
+4. use exact match, don't support regex for now
+
+Other Features 
+==============
+
+1. Default buffering mode is disk aio buffering mode. To turn off disk buffering, add a "use_disk_buffer 0" line in
+config file
+
+2. All request headers inlcuding cookies plus the entire POST data will be buffered (either in memory or on disk)
+
+Configuration File
+==================
+
+sample config file ::
+
+    use_disk_buffer 1 
+    convert_url 1 
+    chunk_size 1024 
+    url_list_file /tmp/url_list.conf 
+    max_url_length 10000 
+    base_dir /tmp/test1
+    subdir_num 100 
+    thread_num 10 
+    mem_buffer_size 40000
+
diff --git a/doc/reference/plugins/cacheurl.en.rst b/doc/reference/plugins/cacheurl.en.rst
new file mode 100644
index 00000000..1ad35bf8
--- /dev/null
+++ b/doc/reference/plugins/cacheurl.en.rst
@@ -0,0 +1,78 @@
+.. _cacheurl-plugin:
+
+CacheURL Plugin
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+
+This plugin allows you to change the key that is used for caching a
+request by using any portion of the url via regex. It is designed so that multiple requests that have different
+URLs but the same content (for example, site mirrors) need be cached
+only once.
+
+Installation
+============
+
+This plugin is only built if the configure option ::
+
+    --enable-experimental-plugins
+
+is given at build time.
+
+Configuration
+=============
+
+Create a ``cacheurl.config`` file in the plugin directory with the url
+regex patterns to match. 
+
+``url_pattern   cache_key_replacement``
+
+
+The url_pattern is a regular expression (pcre). The replacement can contain $1, $2 and so on, which will be replaced with the appropriate matching group from the pattern.
+
+Add the plugin to your :file:`plugin.config` file::
+
+    cacheurl.so
+
+Start traffic server. Any rewritten URLs will be written to
+``cacheurl.log`` in the log directory by default.
+
+Examples
+========
+1. To make files from s1.example.com, s2.example.com and s3.example.com all be cached with the same key. Adding a unique suffix (TSINTERNAL in this example) to the cache key guarantees that it won't clash with a real URL should s.example.com exist.
+
+    ``http://s[123].example.com/(.*)  http://s.example.com.TSINTERNAL/$1``
+
+2. Cache based on only some parts of a query string (e.g. ignore session information). This plucks out the id and format query string variables and only considers those when making the cache key.
+
+    ``http://www.example.com/video\?.*?\&?(id=[0-9a-f]*).*?\&(format=[a-z]*) http://video-srv.example.com.ATSINTERNAL/$1&$2``
+
+3. Completely ignore a query string for a specific page
+
+    ``http://www.example.com/some/page.html(?:\?|$) http://www.example.com/some/page.html``
+
+More docs
+=============
+
+There are some docs on cacheurl in Chinese, please find them in the following:
+
+.. http://people.apache.org/~zym/trafficserver/cacheurl.html`` <http://people.apache.org/~zym/trafficserver/cacheurl.html>`_
+
+https://blog.zymlinux.net/index.php/archives/195
diff --git a/doc/reference/plugins/combo_handler.en.rst b/doc/reference/plugins/combo_handler.en.rst
new file mode 100644
index 00000000..f851be62
--- /dev/null
+++ b/doc/reference/plugins/combo_handler.en.rst
@@ -0,0 +1,85 @@
+.. _combo-handler-plugin:
+
+Combohandler Plugin
+*******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This plugin provides an intelligent way to combine multiple URLs into a single
+URL, and have Apache Traffic Server combine the components into one
+response. This is useful for example to create URLs that combine multiple CSS
+or Javascript files into one.
+
+Installation
+============
+
+This plugin is only built if the configure option ::
+
+    --enable-experimental-plugins
+
+is given at build time. Note that this plugin is built and installed in
+combination with the ESI module, since they share common code.
+
+Configuration
+=============
+
+The arguments in the :file:`plugin.config` line in order represent
+
+1. The path that should triggers combo handler (defaults to
+   "admin/v1/combo")
+
+2. The name of the key used for signature verification (disabled by
+   default)
+
+A "-" can be supplied as a value for any of these arguments to request
+default value be applied.
+
+Also, just like the original combohandler, this plugin generates URLs of
+the form ``http://localhost/<dir>/<file-path>``. ``<dir>`` here defaults
+to ``l`` unless specified by the file path in the query parameter using
+a colon. For example::
+
+    http://combo.com/admin/v1/combo?filepath1&dir1:filepath2&filepath3
+
+Will result in these three pages being fetched::
+
+    http://localhost/l/filepath1
+    http://localhost/dir1/filepath2
+    http://localhost/l/filepath3
+
+Remap rules have to be specified to map the above URLs to desired
+content servers.
+
+The plugin also supports a prefix parameter. Common parts of successive
+file paths can be extracted and specified separately using a 'p' query
+parameter. Successive file path parameters are appended to this prefix
+to create complete file paths. The prefix will remain active until
+changed or cleared (set to an empty string). For example, the query ::
+
+    "/file1&p=/path1/&file2&file3&p=&/file4&p=/dir:path2/&file5&file6"
+
+results in these file paths being "reconstructed"::
+
+    /file1
+    /path1/file2
+    /path1/file3
+    /file4
+    /dir:path2/file5
+    /dir:path2/file6
+
diff --git a/doc/reference/plugins/conf_remap.en.rst b/doc/reference/plugins/conf_remap.en.rst
new file mode 100644
index 00000000..bcd974a5
--- /dev/null
+++ b/doc/reference/plugins/conf_remap.en.rst
@@ -0,0 +1,51 @@
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. _conf-remap-plugin:
+
+conf_remap Plugin
+=================
+
+The `conf_remap` plugin allows you to override configuration
+directives dependent on actual remapping rules. The plugin is built
+and installed as part of the normal Apache Traffic Server installation
+process.
+
+The `conf_remap` plugin accepts configuration directives in the
+arguments list or in a separate configuration file. In both cases,
+only string and integer directives are supported.
+
+When using a separate configuration file, the standard
+:file:`records.config` syntax is used, for example::
+
+    map http://cdn.example.com/ http://some-server.example.com \
+      @plugin=conf_remap.so @pparam=/etc/trafficserver/cdn.conf
+
+where `cdn.conf` contains::
+
+    CONFIG proxy.config.url_remap.pristine_host_hdr INT 1
+
+When using inline arguments, the `conf_remap` plugin accepts a
+``key=value`` syntax, where the ``KEY`` is the name of the configuration
+directive and ``VALUE`` is the desired value, for example::
+
+    map http://cdn.example.com/ http://some-server.example.com \
+      @plugin=conf_remap.so @pparam=proxy.config.url_remap.pristine_host_hdr=1
+
+Doing this, you will override your global default configuration on
+a per mapping rule. For more details on the APIs, functionality, and a
+complete list of all overridable configurations, see :ref:`ts-overridable-config`.
diff --git a/doc/reference/plugins/esi.en.rst b/doc/reference/plugins/esi.en.rst
new file mode 100644
index 00000000..fc71d455
--- /dev/null
+++ b/doc/reference/plugins/esi.en.rst
@@ -0,0 +1,152 @@
+.. _esi-plugin:
+
+ESI Plugin
+**********
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This plugin implements the ESI specification.
+
+Specification
+=============
+
+Supportted ESI tags:
+
+::
+
+    esi:include
+    esi:remove
+    esi:comment
+    esi:vars
+    esi:choose
+    esi:when
+    esi:otherwise
+    esi:try
+    esi:attempt
+    esi:except
+    <!--esi ... -->
+
+extended ESI tags: *esi:special-include*
+
+Supported variables:
+
+::
+
+    $(HTTP_HOST)
+    $(HTTP_REFERER)
+    $(HTTP_ACCEPT_LANGUAGE{name})
+    $(HTTP_COOKIE{name}) or $(HTTP_COOKIE{name;subkey})
+    $(QUERY_STRING{name})
+
+Note: the name is the key name such as "username", "id" etc. For cookie support sub-name or sub-key, the format is:
+name;subkey, such as "l;u", "l;t" etc. e.g. such cookie string: l=u=test&t=1350952328, the value of
+$(HTTP_COOKIE{"l;u"}) is test and the value of $(HTTP_COOKIE{"l;t"}) is 1350952328
+
+Compile and Installation
+========================
+
+This plugin is only built if the configure option ::
+
+    --enable-experimental-plugins
+
+is given at build time. Note that this plugin is built and installed in combination with the combo handler module, since
+they share common code.
+
+Enabling ESI
+============
+
+1. First we need to set up /usr/local/etc/trafficserver/plugin.config and make sure the following line is present.
+
+::
+
+    esi.so
+
+2. There are four options you can add to the above. 
+
+- "--private-response" will add private cache control and expires header to the processed ESI document. 
+- "--packed-node-support" will enable the support for using packed node, which will improve the performance of parsing
+  cached ESI document. 
+- "--disable-gzip-output" will disable gzipped output, which will NOT gzip the output anyway.
+- "--first-byte-flush" will enable the first byte flush feature, which will flush content to users as soon as the entire
+  ESI document is received and parsed without all ESI includes fetched (the flushing will stop at the ESI include markup
+  till that include is fetched). 
+
+3. We need a mapping for origin server response that contains the ESI markup. Assume that the ATS server is abc.com. And
+   your And your origin server is xyz.com and the response containing ESI markup is http://xyz.com/esi.php. We will need
+   the following line in /usr/local/etc/trafficserver/remap.config
+
+::
+
+    map http://abc.com/esi.php http://xyz.com/esi.php
+
+4. Your response should contain ESI markup and a response header of 'X-Esi: 1'. e.g. using PHP,
+
+::
+
+    <?php   header('X-Esi: 1'); ?>
+    <html>
+    <body>
+    Hello, <esi:include src="http://abc.com/date.php"/>
+    </body>
+    </html>
+
+5. You will need a mapping for the src of the ESI include in remap.config if it is not already present.
+
+::
+
+    map http://abc.com/date.php http://xyz.com/date.php
+
+Or if both your ESI response and the ESI include comes from the same origin server, you can have the following line in
+remap.config instead to replace separate map rules for date.php and esi.php
+
+::
+
+    map http://abc.com/ http://xyz.com/
+
+6. Here is a sample PHP for date.php
+
+::
+
+    <?php
+    header ("Cache-control: no-cache");
+    echo date('l jS \of F Y h:i:s A');
+    ?>
+
+Useful Note
+===========
+
+1. You can provide proper cache control header and the ESI response and ESI include response can be cached separately.
+   It is extremely useful for rendering page with multiple modules. The page layout can be a ESI response with multiple
+   ESI include include, each for different module. The page layour ESI response can be cached and each individual ESI
+   include can also be cached with different duration. 
+
+2. You might want to compile the code without using ESI_PACKED_NODE_SUPPORT because it may not work in some corner cases
+
+Differences from Spec - http://www.w3.org/TR/esi-lang
+=====================================================
+
+1. <esi:include> does not support "alt" and "onerror" attributes
+
+2. <esi:inline> is not supported
+
+3. You cannot have <esi:try> inside another <esi:try>
+
+4. HTTP_USER_AGENT variable is not supported
+
+5. HTTP_COOKIE supports fetching for sub-key
diff --git a/doc/reference/plugins/geoip_acl.en.rst b/doc/reference/plugins/geoip_acl.en.rst
new file mode 100644
index 00000000..15b46ad9
--- /dev/null
+++ b/doc/reference/plugins/geoip_acl.en.rst
@@ -0,0 +1,96 @@
+.. _geoip-acl-plugin:
+
+GeoIP ACLs Plugin
+*****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This is a simple ATS plugin for denying (or allowing) requests based on
+the source IP geo-location. Currently only the Maxmind APIs are
+supported, but we'd be happy to other other (open) APIs if you let us
+know. This plugin comes with the standard distribution of Apache Traffic
+Server, and should be installed as part of the normal build process.
+
+
+Configuration
+=============
+
+Once installed, there are three primary use cases, which we will discuss
+in details. Note that in all configurations, the first plugin parameter
+must specify what the matches should be applied to. Currently, only one
+rule set is supported, for Country ISO codes. This is specified with a
+parameter of ::
+
+    @pparam=country
+
+Future additions to this plugin could include other regions, such as
+city, state, continent etc.
+
+The three typical use cases are as follows:
+
+1. Per remap configurations, applicable to the entire remap rule. This
+   is useful when you can partition your content so that entire prefix
+   paths should be filtered. For example, lets assume that
+   http://example.com/music is restricted to US customers only, and
+   everything else is world wide accessible. In remap.config, you would
+   have something like ::
+
+    map http://example.com/music http://music.example.com \
+      @plugin=geoip_acl.so @pparam=country @pparam=allow @pparam=US
+    map http://example.com http://other.example.com
+
+2. If you can not partition the data with a path prefix, you can specify
+   a separate regex mapping filter. The remap.config file might then
+   look like ::
+
+    map http://example.com http://music.example.com \
+      @plugin=geoip_acl.so @pparam=country \
+      @pparam=regex::/etc/music.regex
+
+where music.regex is a format with PCRE (perl compatible) regular
+expressions, and unique rules for match. E.g.::
+
+    .*\.mp3  allow  US
+    .*\.ogg  deny   US
+
+Note that the default in the case of no matches on the regular
+expressions is to "allow" the request. This can be overriden, see next
+use case.
+
+3. You can also combine 1) and 2), and provide defaults in the
+   remap.config configuration, which then applies for the cases where no
+   regular expressions matches at all. This would be useful to override
+   the default which is to allow all requests that don't match. For
+   example ::
+
+    map http://example.com http://music.example.com \
+      @plugin=geoip_acl.so @pparam=country @pparam=allow @pparam= US
+      @pparam=regex::/etc/music.regex
+
+This tells the plugin that in the situation where there is no matching
+regular expression, only allow requests originating from the US.
+
+Finally, there's one additional parameter option that can be used ::
+
+    @pparam=html::/some/path.html
+
+This will override the default reponse body for the denied responses
+with a custom piece of HTML. This can be useful to explain to your users
+why they are getting denied access to a particular piece of content.
+This configuration can be used with any of the use cases described
+above.
diff --git a/doc/reference/plugins/gzip.en.rst b/doc/reference/plugins/gzip.en.rst
new file mode 100644
index 00000000..5cc135c4
--- /dev/null
+++ b/doc/reference/plugins/gzip.en.rst
@@ -0,0 +1,92 @@
+.. _gzip-plugin:
+
+gzip / deflate Plugin
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This plugin gzips or deflates responses, whichever is applicable. It can
+compress origin respones as well as cached responses. The plugin is built
+and installed as part of the normal Apache Traffic Server installation
+process.
+
+Installation
+============
+
+Add the following line to :file:`plugin.config`::
+
+    gzip.so
+
+In this case, the plugin will use the default behaviour:
+
+-  Enable caching
+-  Compress text/\* for every origin
+-  Don't hide accept encoding from origin servers (for an offloading
+   reverse proxy)
+-  No urls are disallowed from compression
+
+Configuration
+=============
+
+Alternatively, a configuration can also be specified::
+
+    gzip.so <path-to-plugin>/sample.gzip.config
+
+After modifying plugin.cofnig, restart traffic server (sudo
+traffic_line -L) the configuration is re-read when a management update
+is given (sudo traffic_line -x)
+
+Options
+=======
+
+Flags and options are:
+
+``enabled``: (``true`` or ``false``) Enable or disable compression for a
+host.
+
+``remove-accept-encoding``: (``true`` or ``false``) Sets whether the
+plugin should hide the accept encoding from origin servers:
+
+-  To ease the load on the origins.
+-  For when the proxy parses responses, and the resulting
+   compression/decompression is wasteful.
+
+``cache``: (``true`` or ``false``) When set, the plugin stores the
+uncompressed and compressed response as alternates.
+
+``compressible-content-type``: Wildcard pattern for matching
+compressible content types.
+
+``disallow``: Wildcard pattern for disabling compression on urls.
+
+Options can be set globally or on a per-site basis, as such::
+
+    # Set some global options first
+    cache true
+    enabled true
+    remove-accept-encoding false
+    compressible-content-type text/*
+
+    # Now set a configuration for www.example.com
+    [www.example.com]
+    cache false
+    remove-accept-encoding true
+    disallow /notthis/*.js
+
+See example.gzip.config for example configurations.
diff --git a/doc/reference/plugins/header_rewrite.en.rst b/doc/reference/plugins/header_rewrite.en.rst
new file mode 100644
index 00000000..af71ab18
--- /dev/null
+++ b/doc/reference/plugins/header_rewrite.en.rst
@@ -0,0 +1,186 @@
+.. _header-rewrite-plugin:
+
+Header Rewrite Plugin
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This is a plugin for Apache Traffic Server that allows you to
+modify various headers based on defined rules (operations) on a request or
+response. Currently, only one operation is supported.
+
+Using the plugin
+----------------
+
+This plugin can be used as both a global plugin, enabled in plugin.config::
+
+  header_rewrite.so config_file_1.conf config_file_2.conf ...
+
+These are global rules, which would apply to all requests. Another option is
+to use per remap rules in remap.config::
+
+  map http://a http://b @plugin=header_rewrite.so @pparam=rules1.conf ...
+
+In the second example, hooks which are not to be executed during the remap
+phase (the default) causes a transaction hook to be instantiated and used
+at a later time. This allows you to setup e.g. a rule that gets executed
+during the origin response header parsing, using READ_RESPONSE_HDR_HOOK.
+
+Configuration filenames without an absolute paths are searched for in the
+default configuration directory. This is typically where your main
+configuration files are, e.g. ``/usr/local/etc/trafficserver``.
+
+Operators
+---------
+
+The following operators are available::
+
+  rm-header header-name                 [operator_flags]
+  add-header header <value>             [operator_flags]
+  set-header header <value>             [operator_flags]
+  set-status <status-code>              [operator_flags]
+  set-destination [qual] <value>        [operator_flags]
+  set-redirect <value>                  [operator_flags]
+  set-timeout-out <value>               [operator_flags]
+  set-status-reason <value>             [operator_flags]
+  set-config overridable-config <value> [operator_flags]
+  counter counter-name                  [operator_flags]
+  no-op                                 [operator_flags]
+
+
+Where qual is one of the support URL qualifiers::
+
+  HOST
+  PORT
+  PATH
+  QUERY
+
+For example (as a remap rule)::
+
+  cond %{HEADER:X-Mobile} = "foo"
+  set-destination HOST foo.mobile.bar.com [L]
+
+Operator flags
+--------------
+
+The operator flags are optional, and must not contain whitespaces inside
+the brackets. Currently, only one flag is supported::
+
+  [L]   Last rule, do not continue
+
+Variable expansion
+------------------
+Currently only limited variable expansion is supported in add-header. Supported
+substitutions include::
+
+  %<proto>      Protocol
+  %<port>       Port
+  %<chi>        Client IP
+  %<cqhl>       Client request length
+  %<cqhm>       Client HTTP method
+  %<cquup>      Client unmapped URI
+
+Conditions
+----------
+The conditions are used as qualifiers: The operators specified will
+only be evaluated if the condition(s) are met::
+
+  cond %{STATUS} operand                        [condition_flags]
+  cond %{RANDOM:nn} operand                     [condition_flags]
+  cond %{ACCESS:file}                           [condition_flags]
+  cond %{TRUE}                                  [condition_flags]
+  cond %{FALSE}                                 [condition_flags]
+  cond %{HEADER:header-name} operand            [condition_flags]
+  cond %{COOKIE:cookie-name} operand            [condition_flags]
+  cond %{CLIENT-HEADER:header-name} operand     [condition_flags]
+  cond %{PROTOCOL} operand                      [condition_flags]
+  cond %{PORT} operand                          [condition_flags]
+  cond %{HOST} operand                          [condition_flags]
+  cond %{TOHOST} operand                        [condition_flags]
+  cond %{FROMHOST} operand                      [condition_flags]
+  cond %{PATH} operand                          [condition_flags]
+  cond %{PARAMS} operand                        [condition_flags]
+  cond %{QUERY} operand                         [condition_flags]
+  cond %{INTERNAL-TRANSACTION}                  [condition_flags]
+  cond %{CLIENT-IP}                             [condition_flags]
+
+The difference between HEADER and CLIENT-HEADER is that HEADER adapts to the
+hook it's running in, whereas CLIENT-HEADER always applies to the client
+request header. The %{TRUE} condition is also the default condition if no
+other conditions are specified.
+
+These conditions have to be first in a ruleset, and you can only have one in
+each rule. This implies that a new hook condition starts a new rule as well.::
+
+  cond %{READ_RESPONSE_HDR_HOOK}   (this is the default hook)
+  cond %{READ_REQUEST_HDR_HOOK}
+  cond %{READ_REQUEST_PRE_REMAP_HOOK}
+  cond %{SEND_REQUEST_HDR_HOOK}
+  cond %{SEND_RESPONSE_HDR_HOOK}
+
+For remap.config plugin instanations, the default hook is named
+REMAP_PSEUDO_HOOK. This can be useful if you are mixing other hooks in a
+configuration, but being the default it is also optional.
+
+---------------
+Condition flags
+---------------
+
+The condition flags are optional, and you can combine more than one into
+a comma separated list of flags. Note that whitespaces are not allowed inside
+the brackets::
+
+  [NC]  Not case sensitive condition (when applicable) [NOT IMPLEMENTED!]
+  [AND] AND with next condition (default)
+  [OR]  OR with next condition
+  [NOT] Invert this condition
+
+Operands to conditions
+----------------------
+::
+
+  /string/  # regular expression
+  <string   # lexically lower
+  >string   # lexically greater
+  =string   # lexically equal
+
+The absence of a "matcher" means value exists).
+
+Values
+------
+Setting e.g. a header with a value can take the following formats:
+
+- Any of the cond definitions, that extracts a value from the request
+- $N 0 <= N <= 9, as grouped in a regular expression
+- string (which can contain the above)
+- null
+
+Examples
+--------
+::
+
+  cond %{HEADER:X-Y-Foobar}
+  cond %{COOKIE:X-DC}  =DC1
+  add-header X-Y-Fiefum %{HEADER:X-Y-Foobar}
+  add-header X-Forwarded-For %<chi>
+  rm-header X-Y-Foobar
+  rm-header Set-Cookie
+  counter plugin.header_rewrite.x-y-foobar-dc1
+  cond %{HEADER:X-Y-Foobar} "Some string" [AND,NC]
+
diff --git a/doc/reference/plugins/hipes.en.rst b/doc/reference/plugins/hipes.en.rst
new file mode 100644
index 00000000..6248a9c7
--- /dev/null
+++ b/doc/reference/plugins/hipes.en.rst
@@ -0,0 +1,126 @@
+.. _hipes-plugin:
+
+HIPES plugin
+************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This is a remap plugin used in the HIPES system.
+
+Configuration
+=============
+
+``urlp:<name>``
+    Default: ``url``
+    Name of the query parameter for the service URL
+
+``path:<path>``
+    Default: ``/``
+    Path to use for the service URL
+
+``ssl``
+    Default: ``no``
+    Use SSL when connecting to the service
+
+``service``
+    Service server, ``host[:port]``
+
+``server``
+    Default: ``hipes.yimg.com``
+    Name of HIPES server, ``host[:port]``
+
+``active_timeout``
+    The active connection timeout in ms
+
+``no_activity_timeout``
+    The no activity timeout in ms
+
+``connect_timeout``
+    The connect timeout in ms
+
+``dns_timeout``
+    The DNS timeout
+
+The timeout options override the server defaults (from
+```records.config``), and
+only apply to the connection to the specific "service" host.
+
+Notes on HIPES
+==============
+
+HTTP Pipes (aka HIPES and pronounced "Hippies") allows data services to be pipelined together, as illustrated by the
+example below. 
+
+Example
+=======
+1. ATS is run on port 80 and apache HTTP web server is run on port 8080 on localhost (127.0.0.1)
+
+2. The HIPES plugin is used in ``remap.config`` ::
+
+    map http://127.0.0.1/svc_case http://nosuchhost @plugin=hipes.so @pparam=service:127.0.0.1:8080 @pparam=path:svc_case.php @pparam=server:127.0.0.1
+    map http://127.0.0.1/svc_reverse http://nosuchhost @plugin=hipes.so @pparam=service:127.0.0.1:8080 @pparam=path:svc_reverse.php @pparam=server:127.0.0.1 
+    map http://127.0.0.1/test.txt http://127.0.0.1:8080/test.txt
+
+3. The plugin remaps the incoming URL such as :: 
+   
+    http://127.0.0.1/svc_reverse/svc_case;case=u/test.txt  
+
+to the following ::
+ 
+    http://127.0.0.1:8080/svc_reverse?url=http%3A%2F%2F127.0.0.1%2Fsvc_case%3Bcase%3Du%2Ftest.txt
+
+4. The service ``svc_reverse.php`` fetches the ``url`` from the ATS again and the plugin remaps the URL ::
+
+    http://127.0.0.1/svc_case;case=u/test.txt
+
+to this URL :: 
+
+    http://127.0.0.1:8080/svc_case.php?case=u&url=http%3A%2F%2F127.0.0.1%2Ftest.txt
+
+5. In this example, the service ``svc_case.php`` fetches and transforms the response of ``http://127.0.0.1/test.txt``
+(which ATS proxies the request to a local file) to upper case. And subsequently the service ``svc_reverse.php`` receives
+the response and reverse the order before the response is sent back to the client by ATS. 
+
+Notes on reducing traffic 
+=========================
+
+There can be significant overhead using HIPES because the data can traverse through ATS many times. Caching can be
+important to reduce traffic to services/through ATS and can be achieved via a proper ``Cache-Control`` header returned
+by the services. Another way to reduce traffic through ATS is to have ATS to return 302 redirects to url for the
+requests made by service, instead of proxying the requests to that url. However, the service must then be able to follow
+the redirect. The down side is that we cannot use ATS to cache intermediate results. Below is an example of using
+redirect.  
+
+Modification to above example to reduce traffic using redirect
+==============================================================
+
+1. The service ``svc_reverse.php`` is modified to add a header of ``X-HIPES-Redirect: 2`` to the request made against
+``url``. 
+
+2. HIPES plugin will instruct ATS to return a redirect response to this url ::
+
+    http://127.0.0.1:8080/svc_case.php?case=u&url=http%3A%2F%2F127.0.0.1%2Ftest.txt
+
+for the following request ::
+
+    http://127.0.0.1/svc_case;case=u/test.txt
+
+3.  The service ``svc_reverse.php`` is also modified to follow the redirect. Thus the response of the service of
+``svc_case.php`` will not pass through ATS and will pass to ``svc_reverse.php`` service instead.  
+
diff --git a/doc/reference/plugins/index.en.rst b/doc/reference/plugins/index.en.rst
new file mode 100644
index 00000000..eff4c5bf
--- /dev/null
+++ b/doc/reference/plugins/index.en.rst
@@ -0,0 +1,80 @@
+Plugin Reference
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Overview
+========
+
+One of the key features of Apache Traffic Server is modularity.
+Features that aren't needed in the core simply aren't there. This
+is a good thing, because it guarantees that our core can remain
+fast by concentrating on the things that we always provide: Caching
+and proxying.
+
+All other things can be moved into plugins, by opening up a consistent
+C API, everyone can implement their own functionality, without
+having to touch the core.
+
+Stable plugins
+==============
+
+Plugins that are considered stable are installed by default in
+Apache Traffic Server releases.
+
+.. toctree::
+  :maxdepth: 1
+
+  cacheurl.en
+  conf_remap.en
+  gzip.en
+  header_rewrite.en
+  regex_remap.en
+  stats_over_http.en
+  tcpinfo.en
+
+Experimental plugins
+====================
+
+Plugins that are considered experimental are located in the
+`plugins/experimental <https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;a=tree;f=plugins/experimental;hb=HEAD>`_
+directory of the Apache Traffic Server source tree. Exmperimental plugins can be compiled by passing the
+`--enable-experimental-plugins` option to `configure`::
+
+    $ autoconf -i
+    $ ./configure --enable-experimental-plugins
+    $ make
+
+.. toctree::
+  :maxdepth: 1
+
+  authproxy.en
+  background_fetch.en
+  balancer.en
+  buffer_upload.en
+  combo_handler.en
+  esi.en
+  geoip_acl.en
+  hipes.en
+  metalink.en
+  mysql_remap.en
+  s3_auth.en
+  stale_while_revalidate.en
+  ts_lua.en
+  xdebug.en
+
diff --git a/doc/reference/plugins/metalink.en.rst b/doc/reference/plugins/metalink.en.rst
new file mode 100644
index 00000000..ea71a870
--- /dev/null
+++ b/doc/reference/plugins/metalink.en.rst
@@ -0,0 +1,125 @@
+.. Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed
+   with this work for additional information regarding copyright
+   ownership.  The ASF licenses this file to you under the Apache
+   License, Version 2.0 (the "License"); you may not use this file
+   except in compliance with the License.  You may obtain a copy of
+   the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied.  See the License for the specific language governing
+   permissions and limitations under the License.
+
+.. _metalink-plugin:
+
+
+Metalink plugin
+===============
+
+The `metalink` plugin implements the `Metalink`_ download description
+format in order to try not to download the same file twice.  This
+improves cache efficiency and speeds up users' downloads.
+
+It takes standard headers and knowledge about objects in the cache and
+potentially rewrites those headers so that a client will use a URL
+that's already cached instead of one that isn't.  The headers are
+specified in :rfc:`6249` (Metalink/HTTP: Mirrors and Hashes) and
+:rfc:`3230` (Instance Digests in HTTP) and are sent by various
+download redirectors or content distribution networks.
+
+A lot of download sites distribute the same files from many different
+mirrors and users don't know which mirrors are already cached.  These
+sites often present users with a simple download button, but the
+button doesn't predictably access the same mirror, or a mirror that's
+already cached.  To users it seems like the download works sometimes
+(takes seconds) and not others (takes hours), which is frustrating.
+
+An extreme example of this happens when users share a limited,
+possibly unreliable internet connection, as is common in parts of
+Africa for example.
+
+
+How it Works
+------------
+
+When the plugin sees a response with a :mailheader:`Location: ...`
+header and a :mailheader:`Digest: SHA-256=...` header, it checks if
+the URL in the :mailheader:`Location` header is already cached.  If it
+isn't, then it tries to find a URL that is cached to use instead.  It
+looks in the cache for some object that matches the digest in the
+:mailheader:`Digest` header and if it succeeds, then it rewites the
+:mailheader:`Location` header with that object's URL.
+
+This way a client should get sent to a URL that's already cached and
+won't download the file again.
+
+
+Installation
+------------
+
+The `metalink` plugin is a global plugin.  Enable it by adding
+``metalink.so`` to your :file:`plugin.config` file.  There are no
+options.
+
+
+Implementation Status
+---------------------
+
+The plugin implements the ``TS_HTTP_SEND_RESPONSE_HDR_HOOK`` hook to
+check and potentially rewrite the :mailheader:`Location` and
+:mailheader:`Digest` headers after responses are cached.  It doesn't
+do it before they're cached because the contents of the cache can
+change after responses are cached.  It uses :c:func:`TSCacheRead` to
+check if the URL in the :mailheader:`Location` header is already
+cached.  In future, the plugin should also check if the URL is fresh
+or not.
+
+The plugin implements the ``TS_HTTP_READ_RESPONSE_HDR_HOOK`` hook and
+`a null transformation`_ to compute the SHA-256 digest for content as
+it's added to the cache.  It uses SHA256_Init(), SHA256_Update(), and
+SHA256_Final() from OpenSSL to compute the digest, then it uses
+:c:func:`TSCacheWrite` to associate the digest with the request URL.
+This adds a new cache object where the key is the digest and the
+object is the request URL.
+
+To check if the cache already contains content that matches a digest,
+the plugin must call :c:func:`TSCacheRead` with the digest as the key,
+read the URL stored in the resultant object, and then call
+:c:func:`TSCacheRead` again with this URL as the key.  This is
+probably inefficient and should be improved.
+
+An early version of the plugin scanned :mailheader:`Link: <...>;
+rel=duplicate` headers.  If the URL in the :mailheader:`Location: ...`
+header wasn't already cached, it scanned :mailheader:`Link: <...>;
+rel=duplicate` headers for a URL that was.  The :mailheader:`Digest:
+SHA-256=...` header is superior because it will find content that
+already exists in the cache in every case that a :mailheader:`Link:
+<...>; rel=duplicate` header would, plus in cases where the URL is not
+listed among the :mailheader:`Link: <...>; rel=duplicate` headers,
+maybe because the content was downloaded from a URL not participating
+in the content distribution network, or maybe because there are too
+many mirrors to list in :mailheader:`Link: <...>; rel=duplicate`
+headers.
+
+The :mailheader:`Digest: SHA-256=...` header is also more efficient
+than :mailheader:`Link: <...>; rel=duplicate` headers because it
+involves a constant number of cache lookups.  RFC 6249 requires a
+:mailheader:`Digest: SHA-256=...` header or :mailheader:`Link: <...>;
+rel=duplicate` headers MUST be ignored:
+
+   If Instance Digests are not provided by the Metalink servers, the
+   :mailheader:`Link` header fields pertaining to this specification
+   MUST be ignored.
+
+   Metalinks contain whole file hashes as described in Section 6, and
+   MUST include SHA-256, as specified in [FIPS-180-3].
+
+
+.. _Metalink:    http://en.wikipedia.org/wiki/Metalink
+
+.. _a null transformation:
+                 /sdk/http-transformation-plugin/sample-null-transformation-plugin
diff --git a/doc/reference/plugins/mysql_remap.en.rst b/doc/reference/plugins/mysql_remap.en.rst
new file mode 100644
index 00000000..2bb3b00d
--- /dev/null
+++ b/doc/reference/plugins/mysql_remap.en.rst
@@ -0,0 +1,85 @@
+.. _mysql-remap-plugin:
+
+MySQL Remap Plugin
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This is a basic plugin for doing dynamic "remaps" from a database. It
+essentially rewrites the incoming request's Host header / origin server
+connection to one retrieved from a database.
+
+The generic proxying setup is the following::
+
+    UA ----> Traffic Server ----> Origin Server
+
+Without the plugin a request like::
+
+    GET /path/to/something HTTP/1.1
+    Host: original.host.com
+
+Ends up requesting ``http://original.host.com/path/to/something``
+
+With this plugin enabled, you can easily change that to anywhere you
+desire. Imagine the many possibilities....
+
+We have benchmarked the plugin with ab at about 9200 requests/sec (1.7k
+object) on a commodity hardware with a local setup of both, MySQL and
+Traffic Server local. Real performance is likely to be substantially
+higher, up to the MySQL's max queries / second.
+
+Installation
+============
+
+This plugin is only built if the configure option ::
+
+    --enable-experimental-plugins
+
+is given at build time.
+
+Configuration
+=============
+
+Import the default schema to a database you create::
+
+    mysql -u root -p -e "CREATE DATABASE mysql_remap;"   # create a new database
+    mysql -u root -p mysql_remap < schema/import.sql     # import the provided schema
+
+insert some interesting values in mysql_remap.hostname &
+mysql_remap.map
+
+Traffic Server plugin configuration is done inside a global
+configuration file: ``/etc/trafficserver/plugin.config``::
+
+    mysql_remap.so /etc/trafficserver/mysql_remap.ini
+
+The INI file should contain the following values::
+
+    [mysql_remap]
+    mysql_host     = localhost   #default
+    mysql_port     = 3306        #default
+    mysql_username = remap_user
+    mysql_password = 
+    mysql_database = mysql_remap #default
+
+To debug errors, start trafficserver manually using::
+
+    traffic_server -T "mysql_remap"
+
+And resolve any errors or warnings displayed.
diff --git a/doc/reference/plugins/regex_remap.en.rst b/doc/reference/plugins/regex_remap.en.rst
new file mode 100644
index 00000000..cb9d9f02
--- /dev/null
+++ b/doc/reference/plugins/regex_remap.en.rst
@@ -0,0 +1,142 @@
+.. _regex-remap-plugin:
+
+Regex Remap Plugin
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This allows you to configure mapping rules based on regular expressions.
+This is similar to what you can accomplish using mod_rewrite in Apache
+httpd, but obviously not as flexible or sophisticated (yet).
+
+To use this plugin, configure a remap.config rule like ::
+
+    map http://a.com http://b.com @plugin=regex_remap.so @pparam=maps.reg
+
+The file name parameter is always required. Unless an absolute path
+is specified, the file name is assumed to be a path relative to the
+Traffic Server configuration directory.
+
+The regular expressions listed in the configuration file are evaluated
+sequentially. When a regular expression is positively matched against
+a request URL, evaluation is stopped and the rewrite rule is applied.
+If none of the regular expressions are a match, the default destination
+URL is applied (``http://b.com`` in the example above).
+
+An optional argument (``@pparam``) with the string "``profile``\ " will
+enable profiling of this regex remap rule, e.g. ::
+
+    ... @pparam=maps.reg @pparam=profile
+
+Profiling is very low overhead, and the information is dumped to
+``traffic.out``, located in the log directory. This information is
+useful to optimize the order of your regular expression, such that the
+most common matches appears early in the file. In order to force a
+profile dump, you can do ::
+
+    $ sudo touch remap.config
+    $ sudo traffic_line -x
+
+By default, only the path and query string of the URL are provided for
+the regular expressions to match. The following optional parameters can
+be used to modify the plugin instance behavior ::
+
+    @pparam=[no-]method              [default: off]
+    @pparam=[no-]query-string        [default: on]
+    @pparam=[no-]matrix-parameters   [default: off]
+
+If you wish to match on the HTTP method used (e.g. "``GET``\ "),
+you must use the option ``@pparam=method``. e.g. ::
+
+    ... @pparam=maps.reg @pparam=method
+
+With this enabled, the string that you will need to match will look
+like ::
+
+    GET/path?query=bar
+
+The methods are always all upper-case, and always followed by one single
+space. There is no space between the method and the rest of the URL (or
+URI path).
+
+By default, the query string is part of the string that is matched
+again, to turn this off use the option 'no-query-string', e.g. ::
+
+    ... @pparam=maps.reg @pparam=no-query-string
+
+Finally, you can also include the matrix parameters in the string, using
+the option 'matrix-parameters', e.g. ::
+
+    ... @pparam=maps.reg @pparam=matrix-parameters
+
+A typical regex would look like ::
+
+    ^/(ogre.*)/more     http://www.ogre.com/$h/$0/$1
+
+The regular expression must not contain any white spaces!
+
+When the regular expression is matched, only the URL path + query string
+is matched (without any of the optional configuration options). The path
+will always start with a "/". Various substitution strings are allowed
+on the right hand side during evaluation ::
+
+    $0     - The entire matched string
+    $1-9   - Regular expression groups ($1 first group etc.)
+    $h     - The original host header from the request
+    $f     - The host as used in the "from" portion of the remap rule
+    $t     - The host as used in the "to" portion of the remap rule
+    $p     - The original port number
+    $s     - The scheme (e.g. http) of the request
+    $P     - The entire path of the request
+    $q     - The query part of the request
+    $r     - The path parameters of the request (not implemented yet)
+    $c     - The cookie string from the request
+    $i     - The client IP for this request
+
+.. note::
+
+    The ``$0`` substitution expands to the characters that were
+    matched by the regular expression, not to the entire string that
+    the regular expression was matched against.
+
+You can also provide options, similar to how you configure your
+remap.config. The following options are available ::
+
+    @status=<nnn>               - Force the response code to <nnn>
+    @active_timeout=<nnn>       - Active timeout (in ms)
+    @no_activity_timeout=<nnn>  - No activity timeout (in ms)
+    @connect_timeout=<nnn>      - Connect timeouts (in ms)
+    @dns_timeout=<nnn>          - Connect timeouts (in ms)
+
+    @overridable-config=<value> - see :ref:`ts-overridable-config`
+
+    @caseless                   - Make regular expressions case insensitive
+    @lowercase_substitutions    - Turn on (enable) lower case substitutions
+
+
+This can be useful to force a particular response for some URLs, e.g. ::
+
+    ^/(ogre.*)/bad      http://www.examle.com/  @status=404
+
+Or, to force a 302 redirect ::
+
+    ^/oldurl/(.*)$      http://news.example.com/new/$1 @status=302
+
+Setting the status to 301 or 302 will force the new URL to be used
+as a redirect (Location:).
diff --git a/doc/reference/plugins/s3_auth.en.rst b/doc/reference/plugins/s3_auth.en.rst
new file mode 100644
index 00000000..38861d58
--- /dev/null
+++ b/doc/reference/plugins/s3_auth.en.rst
@@ -0,0 +1,84 @@
+.. _s3-auth-plugin:
+
+AWS S3 Authentication plugin
+****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This is a plugin for Apache Traffic Server that provides support for the
+``Amazon S3`` authentication features. This is useful if you for example want
+to use ``S3`` as your origin server, yet want to avoid direct user access to
+the content.
+
+Using the plugin
+----------------
+
+There are three configuration options for this plugin::
+
+    --access_key    <key>
+    --secret_key    <key>
+    --virtual_host
+    --config        <config file>
+
+
+Using the first two in a remap rule would be e.g.::
+
+   ...  @plugin=s3_auth @pparam=--access_key @pparam=my-key \
+                        @pparam=--secret_key @pparam=my-secret \
+			@pparam=--virtual_host
+
+
+Alternatively, you can store the access key and secret in an external
+configuration file, and point the remap rule(s) to it:
+
+   ...  @plugin=s3_auth @pparam=--config @pparam=s3.config
+
+
+Where s3.config would look like::
+
+    # AWS S3 authentication
+        access_key=my-key
+        secret_key=my-secret
+        virtual_host=yes
+
+
+For more details on the S3 auth, see::
+
+  http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html
+
+
+ToDo
+----
+
+This is a pretty barebone start for the S3 services, it is missing a number of features:
+
+- It does not do UTF8 encoding (as required)
+
+- It only implements the v2 authentication mechanism. For details on v4, see
+
+  http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html
+
+- It does not deal with canonicalization of AMZ headers.
+
+- It does not handle POST requests (but do we need to ?)
+
+- It does not incorporate query parameters.
+
+
+Contributions to any of these would be appreciated.
diff --git a/doc/reference/plugins/stale_while_revalidate.en.rst b/doc/reference/plugins/stale_while_revalidate.en.rst
new file mode 100644
index 00000000..108cf386
--- /dev/null
+++ b/doc/reference/plugins/stale_while_revalidate.en.rst
@@ -0,0 +1,23 @@
+.. _stale-while-revalidate-plugin:
+
+Stale While Revalidate Plugin (undocumented)
+********************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+refresh content asynchronously while serving stale data
diff --git a/doc/reference/plugins/stats_over_http.en.rst b/doc/reference/plugins/stats_over_http.en.rst
new file mode 100644
index 00000000..89ec970c
--- /dev/null
+++ b/doc/reference/plugins/stats_over_http.en.rst
@@ -0,0 +1,52 @@
+.. _stats-over-http-plugin:
+
+Stats over HTTP Plugin
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This plugin implements an HTTP interface to all Traffic Server statistics. The
+metrics returned are in a JSON format, for easy processing. This plugin is now
+part of the standard ATS build process, and should be available after install.
+
+To enable this plugin, add to the plugin.conf file::
+
+    stats_over_http.so
+
+
+After starting Traffic Server, the JSON metrics are now available on the
+default URL::
+
+    http://host:port/_stats
+
+
+where host and port is the hostname/IP and port number of the server. You can
+optionally modify the path to use, and this is highly recommended in a public
+facing server. For example::
+
+    stats_over_http.so 81c075bc0cca1435ea899ba4ad72766b
+
+
+and the URL would then be e.g.::
+
+    https://host:port/81c075bc0cca1435ea899ba4ad72766b
+
+
+This is weak security at best, since the secret could possibly leak if you are
+careless and send it over clear text.
diff --git a/doc/reference/plugins/tcpinfo.en.rst b/doc/reference/plugins/tcpinfo.en.rst
new file mode 100644
index 00000000..cae9546c
--- /dev/null
+++ b/doc/reference/plugins/tcpinfo.en.rst
@@ -0,0 +1,122 @@
+.. _tcpinfo-plugin:
+
+TCPInfo Plugin
+**************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+This global plugin logs TCP metrics at various points in the HTTP
+processing pipeline. The TCP information is retrieved by the
+:manpage:`getsockopt(2)` function using the ``TCP_INFO`` option.
+This is only supported on systems that support the ``TCP_INFO``
+option, currently Linux and BSD.
+
+Plugin Options
+--------------
+
+The following options may be specified in :file:`plugin.config`:
+
+.. NOTE: if the option name is not long enough, docutils will not
+   add the colspan attribute and the options table formatting will
+   be all messed up. Just a trap for young players.
+
+--hooks=NAMELIST
+  This option specifies when TCP information should be logged. The
+  argument is a comma-separated list of the event names listed
+  below. TCP information will be sampled and logged each time the
+  specified set of events occurs.
+
+  ==============  ===============================================
+   Event Name     Triggered when
+  ==============  ===============================================
+  send_resp_hdr   The server begins sending an HTTP response.
+  ssn_close       The TCP connection closes.
+  ssn_start       A new TCP connection is accepted.
+  txn_close       A HTTP transaction is completed.
+  txn_start       A HTTP transaction is initiated.
+  ==============  ===============================================
+
+--log-file=NAME
+  This specifies the base name of the file where TCP information
+  should be logged. If this option is not specified, the name
+  ``tcpinfo`` is used. Traffic Server will automatically append
+  the ``.log`` suffix.
+
+--log-level=LEVEL
+  The log level can be either ``1`` to log only the round trip
+  time estimate, or ``2`` to log the complete set of TCP information.
+
+  The following fields are logged when the log level is ``1``:
+
+  ==========    ==================================================
+  Field Name    Description
+  ==========    ==================================================
+  timestamp     Event timestamp
+  event         Event name (one of the names listed above)
+  client        Client IP address
+  server        Server IP address
+  rtt           Estimated round trip time
+  ==========    ==================================================
+
+  The following fields are logged when the log level is ``2``:
+
+  ==============    ==================================================
+  Field Name        Description
+  ==============    ==================================================
+  timestamp         Event timestamp
+  event             Event name (one of the names listed above)
+  client            Client IP address
+  server            Server IP address
+  rtt               Estimated round trip time
+  rttvar
+  last_sent
+  last_recv
+  snd_ssthresh
+  rcv_ssthresh
+  unacked
+  sacked
+  lost
+  retrans
+  fackets
+  ==============    ==================================================
+
+--sample-rate=COUNT
+  This is the number of times per 1000 requests that the data will
+  be logged.  A pseudo-random number generator is used to determine if a
+  request will be logged.  The default value is 1000 and this option is
+  not required to be in the configuration file.  To achieve a log rate
+  of 1% you would set this value to 10.
+
+Examples:
+---------
+
+This example logs the simple TCP information to ``tcp-metrics.log``
+at the start of a TCP connection and once for each HTTP
+transaction thereafter::
+
+  tcp_info.so --log-file=tcp-metrics --log-level=1 --hooks=ssn_start,txn_start
+
+The file ``tcp-metrics.log`` will contain the following log format::
+
+  timestamp event client server rtt
+  20140414.17h40m14s ssn_start 127.0.0.1 127.0.0.1 4000
+  20140414.17h40m14s txn_start 127.0.0.1 127.0.0.1 4000
+  20140414.17h40m16s ssn_start 127.0.0.1 127.0.0.1 4000
+  20140414.17h40m16s txn_start 127.0.0.1 127.0.0.1 4000
+  20140414.17h40m16s ssn_start 127.0.0.1 127.0.0.1 4000
+  20140414.17h40m16s txn_start 127.0.0.1 127.0.0.1 4000
diff --git a/doc/reference/plugins/ts_lua.en.rst b/doc/reference/plugins/ts_lua.en.rst
new file mode 100644
index 00000000..3e190c08
--- /dev/null
+++ b/doc/reference/plugins/ts_lua.en.rst
@@ -0,0 +1,2084 @@
+.. _ts-lua-plugin:
+
+ts-lua Plugin
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+
+This module embeds Lua, via the standard Lua 5.1 interpreter, into Apache Traffic Server. With this module, we can
+implement ATS plugin by writing lua script instead of c code. Lua code executed using this module can be 100%
+non-blocking because the powerful Lua coroutines had been integrated in to ATS event model.
+
+Synopsis
+========
+**test_hdr.lua**
+
+::
+
+    function send_response()
+        ts.client_response.header['Rhost'] = ts.ctx['rhost']
+        return 0
+    end
+
+    function do_remap()
+        local req_host = ts.client_request.header.Host
+        ts.ctx['rhost'] = string.reverse(req_host)
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+**sethost.lua**
+
+::
+
+    local HOSTNAME = ''
+    function __init__(argtb)
+        if (#argtb) < 1 then
+            print(argtb[0], 'hostname parameter required!!')
+            return -1
+        end
+        HOSTNAME = argtb[1]
+    end
+
+    function do_remap()
+        ts.client_request.header['Host'] = HOSTNAME
+        return 0
+    end
+
+
+Installation
+============
+
+This plugin is only built if the configure option
+
+::
+
+    --enable-experimental-plugins
+
+is given at build time.
+
+Configuration
+=============
+
+This module acts as remap plugin of Traffic Server, so we should realize 'do_remap' function in each lua script. We can
+write this in remap.config:
+
+::
+
+    map http://a.tbcdn.cn/ http://inner.tbcdn.cn/ @plugin=/XXX/tslua.so @pparam=/XXX/test_hdr.lua
+
+Sometimes we want to receive parameters and process them in the script, we should realize '__init__' function in the lua
+script, and we can write this in remap.config:
+
+::
+
+    map http://a.x.cn/ http://b.x.cn/ @plugin=/X/tslua.so @pparam=/X/sethost.lua @pparam=a.st.cn
+
+This module can also act as a global plugin of Traffic Server. In this case we should provide one of these functions in
+each lua script:
+
+- **'do_global_txn_start'**
+- **'do_global_txn_close'**
+- **'do_global_os_dns'**
+- **'do_global_pre_remap'**
+- **'do_global_post_remap'**
+- **'do_global_read_request'**
+- **'do_global_send_request'**
+- **'do_global_read_response'**
+- **'do_global_send_response'**
+- **'do_global_cache_lookup_complete'**
+- **'do_global_read_cache'**
+- **'do_global_select_alt'**
+
+We can write this in plugin.config:
+
+::
+  
+    tslua.so /etc/trafficserver/script/test_global_hdr.lua
+
+
+TS API for Lua
+==============
+
+Introduction
+------------
+The API is exposed to Lua in the form of one standard packages ``ts``. This package is in the default global scope and
+is always available within lua script. This package can be introduced into Lua like this:
+
+::
+
+    ts.say('Hello World')
+    ts.sleep(10)
+
+`TOP <#ts-lua-plugin>`_
+
+ts.now
+------
+**syntax:** *val = ts.now()*
+
+**context:** global
+
+**description:** This function returns the time since the Epoch (00:00:00 UTC, January 1, 1970), measured in seconds.
+
+Here is an example:
+
+::
+
+    local nt = ts.now()  -- 1395221053
+
+`TOP <#ts-lua-plugin>`_
+
+ts.debug
+--------
+**syntax:** *ts.debug(MESSAGE)*
+
+**context:** global
+
+**description**: Log the MESSAGE to traffic.out if debug is enabled.
+
+Here is an example:
+
+::
+
+       ts.debug('I am in do_remap now.')
+
+The debug tag is **ts_lua** and we should write this in records.config:
+
+``CONFIG proxy.config.diags.debug.tags STRING ts_lua``
+
+`TOP <#ts-lua-plugin>`_
+
+Remap status constants
+----------------------
+**context:** do_remap
+
+::
+
+    TS_LUA_REMAP_NO_REMAP (0)
+    TS_LUA_REMAP_DID_REMAP (1)
+    TS_LUA_REMAP_NO_REMAP_STOP (2)
+    TS_LUA_REMAP_DID_REMAP_STOP (3)
+    TS_LUA_REMAP_ERROR (-1)
+
+These constants are usually used as return value of do_remap function.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.hook
+-------
+**syntax:** *ts.hook(HOOK_POINT, FUNCTION)*
+
+**context:** global or do_remap or do_global_* or later
+
+**description**: Hooks are points in http transaction processing where we can step in and do some work. FUNCTION will be
+called when the http transaction steps in to HOOK_POINT.
+
+Here is an example
+
+::
+
+    function send_response()
+        s.client_response.header['SHE'] = 'belief'
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+    end
+
+Then the client will get the response like this:
+
+::
+
+    HTTP/1.1 200 OK
+    Content-Type: text/html
+    Server: ATS/3.2.0
+    SHE: belief
+    Connection: Keep-Alive
+    ...
+
+You can create global hook as well
+
+::
+
+    function do_some_work()
+       ts.debug('do_some_work')
+       return 0  
+    end
+
+    ts.hook(TS_LUA_HOOK_READ_REQUEST_HDR, do_some_work)
+
+Or you can do it this way
+
+    ts.hook(TS_LUA_HOOK_READ_REQUEST_HDR, 
+        function()
+            ts.debug('do_some_work')
+            return 0
+        end
+    )
+
+Also the return value of the function will control how the transaction will be re-enabled. Return value of 0 will cause
+the transaction to be re-enabled normally (TS_EVENT_HTTP_CONTINUE). Return value of 1 will be using TS_EVENT_HTTP_ERROR
+instead.
+
+`TOP <#ts-lua-plugin>`_
+
+Hook point constants
+--------------------
+**context:** do_remap or later
+
+::
+
+    TS_LUA_HOOK_OS_DNS
+    TS_LUA_HOOK_PRE_REMAP
+    TS_LUA_HOOK_READ_CACHE_HDR
+    TS_LUA_HOOK_SELECT_ALT
+    TS_LUA_HOOK_TXN_CLOSE
+    TS_LUA_HOOK_POST_REMAP
+    TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE
+    TS_LUA_HOOK_READ_REQUEST_HDR
+    TS_LUA_HOOK_SEND_REQUEST_HDR
+    TS_LUA_HOOK_READ_RESPONSE_HDR
+    TS_LUA_HOOK_SEND_RESPONSE_HDR
+    TS_LUA_REQUEST_TRANSFORM
+    TS_LUA_RESPONSE_TRANSFORM
+
+These constants are usually used in ts.hook method call.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.ctx
+------
+**syntax:** *ts.ctx[KEY] = VALUE*
+
+**syntax:** *VALUE = ts.ctx[KEY]*
+
+**context:** do_remap or do_global_* or later
+
+**description:** This table can be used to store per-request Lua context data and has a life time identical to the
+current request.
+
+Here is an example:
+
+::
+
+    function send_response()
+        ts.client_response.header['F-Header'] = ts.ctx['hdr']
+        return 0
+    end
+
+    function do_remap()
+        ts.ctx['hdr'] = 'foo'
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+Then the client will get the response like this:
+
+::
+
+    HTTP/1.1 200 OK
+    Content-Type: text/html
+    Server: ATS/3.2.0
+    F-Header: foo
+    Connection: Keep-Alive
+    ...
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_method
+----------------------------
+**syntax:** *ts.client_request.get_method()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** This function can be used to retrieve the current client request's method name. String like "GET" or
+"POST" is returned.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_method
+----------------------------
+**syntax:** *ts.client_request.set_method()*
+
+**context:** do_remap or do_global_*
+
+**description:** This function can be used to override the current client request's method with METHOD_NAME.
+
+ts.client_request.get_version
+-----------------------------
+**syntax:** *ver = ts.client_request.get_version()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Return the http version string of the client request.
+
+Current possible values are 1.0, 1.1, and 0.9.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_version
+-----------------------------
+**syntax:** *ts.client_request.set_version(VERSION_STR)*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Set the http version of the client request with the VERSION_STR
+
+::
+
+    ts.client_request.set_version('1.0')
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_uri
+-------------------------
+**syntax:** *ts.client_request.get_uri()*
+
+**context:** do_remap or later
+
+**description:** This function can be used to retrieve the client request's path.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local uri = ts.client_request.get_uri()
+        print(uri)
+    end
+
+Then ``GET /st?a=1`` will yield the output:
+
+``/st``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_uri
+-------------------------
+**syntax:** *ts.client_request.set_uri(PATH)*
+
+**context:** do_remap or do_global_* 
+
+**description:** This function can be used to override the client request's path.
+
+The PATH argument must be a Lua string and starts with ``/``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_uri_args
+------------------------------
+**syntax:** *ts.client_request.get_uri_args()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** This function can be used to retrieve the client request's query string.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local query = ts.client_request.get_uri_args()
+        print(query)
+    end
+
+Then ``GET /st?a=1&b=2`` will yield the output:
+
+``a=1&b=2``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_uri_args
+------------------------------
+**syntax:** *ts.client_request.set_uri_args(QUERY_STRING)*
+
+**context:** do_remap or do_global_* 
+
+**description:** This function can be used to override the client request's query string.
+
+::
+
+    ts.client_request.set_uri_args('n=6&p=7')
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_url
+-------------------------
+**syntax:** *ts.client_request.get_url()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** This function can be used to retrieve the whole client request's url.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local url = ts.client_request.get_url()
+        print(url)
+    end
+
+Then ``GET /st?a=1&b=2 HTTP/1.1\r\nHost: a.tbcdn.cn\r\n...`` will yield the output:
+
+``http://a.tbcdn.cn/st?a=1&b=2``
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.header.HEADER
+-------------------------------
+**syntax:** *ts.client_request.header.HEADER = VALUE*
+
+**syntax:** *ts.client_request.header[HEADER] = VALUE*
+
+**syntax:** *VALUE = ts.client_request.header.HEADER*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Set, add to, clear or get the current client request's HEADER.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local ua = ts.client_request.header['User-Agent']
+        print(ua)
+        ts.client_request.header['Host'] = 'a.tbcdn.cn'
+    end
+
+Then ``GET /st HTTP/1.1\r\nHost: b.tb.cn\r\nUser-Agent: Mozilla/5.0\r\n...`` will yield the output:
+
+``Mozilla/5.0``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_headers
+-----------------------------
+**syntax:** *ts.client_request.get_headers()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Returns a Lua table holding all the headers for the current client request.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        hdrs = ts.client_request.get_headers()
+        for k, v in pairs(hdrs) do
+            print(k..': '..v)
+        end
+    end
+
+Then ``GET /st HTTP/1.1\r\nHost: b.tb.cn\r\nUser-Aget: Mozilla/5.0\r\nAccept: */*`` will yield the output ::
+
+    Host: b.tb.cn
+    User-Agent: Mozilla/5.0
+    Accept: */*
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.client_addr.get_addr
+--------------------------------------
+**syntax:** *ts.client_request.client_addr.get_addr()*
+
+**context:** do_remap or do_global_* or later
+
+**description**: This function can be used to get socket address of the client.
+
+The ts.client_request.client_addr.get_addr function returns three values, ip is a string, port and family is number. 
+
+Here is an example:
+
+::
+
+    function do_remap()
+        ip, port, family = ts.client_request.client_addr.get_addr()
+        print(ip)               -- 192.168.231.17
+        print(port)             -- 17786
+        print(family)           -- 2(AF_INET)
+        return 0
+    end
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_url_host
+------------------------------
+**syntax:** *host = ts.client_request.get_url_host()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Return the ``host`` field of the request url.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local url_host = ts.client_request.get_url_host()
+        print(url_host)
+    end
+
+Then ``GET /liuyurou.txt HTTP/1.1\r\nHost: 192.168.231.129:8080\r\n...`` will yield the output:
+
+``192.168.231.129``
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_url_host
+------------------------------
+**syntax:** *ts.client_request.set_url_host(str)*
+
+**context:** do_remap or do_global_* 
+
+**description:** Set ``host`` field of the request url with ``str``. This function is used to change the address of the
+origin server, and we should return TS_LUA_REMAP_DID_REMAP(_STOP) in do_remap.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        ts.client_request.set_url_host('192.168.231.130')
+        ts.client_request.set_url_port(80)
+        ts.client_request.set_url_scheme('http')
+        return TS_LUA_REMAP_DID_REMAP
+    end
+
+remap.config like this:
+
+::
+
+    map http://192.168.231.129:8080/ http://192.168.231.129:9999/
+
+Then server request will connect to ``192.168.231.130:80``
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_url_port
+------------------------------
+**syntax:** *port = ts.client_request.get_url_port()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Returns the ``port`` field of the request url as a Lua number.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local url_port = ts.client_request.get_url_port()
+        print(url_port)
+    end
+
+Then Then ``GET /liuyurou.txt HTTP/1.1\r\nHost: 192.168.231.129:8080\r\n...`` will yield the output:
+
+``8080``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_url_port
+------------------------------
+**syntax:** *ts.client_request.set_url_port(NUMBER)*
+
+**context:** do_remap or do_global_*
+
+**description:** Set ``port`` field of the request url with ``NUMBER``. This function is used to change the address of
+the origin server, and we should return TS_LUA_REMAP_DID_REMAP(_STOP) in do_remap.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.get_url_scheme
+--------------------------------
+**syntax:** *scheme = ts.client_request.get_url_scheme()*
+
+**context:** do_remap or do_global_* or later
+
+**description:** Return the ``scheme`` field of the request url.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        local url_scheme = ts.client_request.get_url_scheme()
+        print(url_scheme)
+    end
+
+Then ``GET /liuyurou.txt HTTP/1.1\r\nHost: 192.168.231.129:8080\r\n...`` will yield the output:
+
+``http``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_request.set_url_scheme
+--------------------------------
+**syntax:** *ts.client_request.set_url_scheme(str)*
+
+**context:** do_remap or do_global_* 
+
+**description:** Set ``scheme`` field of the request url with ``str``. This function is used to change the scheme of the
+server request, and we should return TS_LUA_REMAP_DID_REMAP(_STOP) in do_remap.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.set_cache_url
+---------------------
+**syntax:** *ts.http.set_cache_url(KEY_URL)*
+
+**context:** do_remap or do_global_* 
+
+**description:** This function can be used to modify the cache key for the client request.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        ts.http.set_cache_url('http://a.tbcdn.cn/foo')
+        return 0
+    end
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.set_resp
+----------------
+**syntax:** *ts.http.set_resp(CODE, BODY)*
+
+**context:** do_remap or do_global_*
+
+**description:** This function can be used to set response for the client with the CODE status and BODY string.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        ts.http.set_resp(403, "Document access failed :)\n")
+        return 0
+    end
+
+We will get the response like this:
+
+::
+
+    HTTP/1.1 403 Forbidden
+    Date: Thu, 20 Mar 2014 06:12:43 GMT
+    Connection: close
+    Server: ATS/5.0.0
+    Cache-Control: no-store
+    Content-Type: text/html
+    Content-Language: en
+    Content-Length: 27
+
+    Document access failed :)
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.get_cache_lookup_status
+-------------------------------
+**syntax:** *ts.http.get_cache_lookup_status()*
+
+**context:** function @ TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE hook point
+
+**description:** This function can be used to get cache lookup status.
+
+Here is an example:
+
+::
+
+    function cache_lookup()
+        local cache_status = ts.http.get_cache_lookup_status()
+        if cache_status == TS_LUA_CACHE_LOOKUP_HIT_FRESH then
+            print('hit')
+        else
+            print('not hit')
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+Http cache lookup status constants
+----------------------------------
+**context:** global
+
+::
+
+    TS_LUA_CACHE_LOOKUP_MISS (0)
+    TS_LUA_CACHE_LOOKUP_HIT_STALE (1)
+    TS_LUA_CACHE_LOOKUP_HIT_FRESH (2)
+    TS_LUA_CACHE_LOOKUP_SKIPPED (3)
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.cached_response.get_status
+-----------------------------
+**syntax:** *status = ts.cached_response.get_status()*
+
+**context:** function @ TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE hook point or later
+
+**description:** This function can be used to retrieve the status code of the cached response. A Lua number will be
+returned.
+
+Here is an example:
+
+::
+
+    function cache_lookup()
+        local cache_status = ts.http.get_cache_lookup_status()
+        if cache_status == TS_LUA_CACHE_LOOKUP_HIT_FRESH then
+            code = ts.cached_response.get_status()
+            print(code)         -- 200
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+        return 0
+    end
+
+`TOP <#ts-lua-plugin>`_
+
+ts.cached_response.get_version
+------------------------------
+**syntax:** *ver = ts.cached_response.get_version()*
+
+**context:** function @ TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE hook point or later
+
+**description:** Return the http version string of the cached response.
+
+Current possible values are 1.0, 1.1, and 0.9.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.cached_response.header.HEADER
+--------------------------------
+**syntax:** *VALUE = ts.cached_response.header.HEADER*
+
+**syntax:** *VALUE = ts.cached_response.header[HEADER]*
+
+**context:** function @ TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE hook point or later
+
+**description:** get the current cached response's HEADER.
+
+Here is an example:
+
+::
+
+    function cache_lookup()
+        local status = ts.http.get_cache_lookup_status()
+        if status == TS_LUA_CACHE_LOOKUP_HIT_FRESH then
+            local ct = ts.cached_response.header['Content-Type']
+            print(ct)         -- text/plain
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.cached_response.get_headers
+------------------------------
+**syntax:** *ts.cached_response.get_headers()*
+
+**context:** function @ TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE hook point or later
+
+**description:** Returns a Lua table holding all the headers for the current cached response.
+
+Here is an example:
+
+::
+
+    function cache_lookup()
+        local status = ts.http.get_cache_lookup_status()
+        if status == TS_LUA_CACHE_LOOKUP_HIT_FRESH then
+            hdrs = ts.cached_response.get_headers()
+            for k, v in pairs(hdrs) do
+                print(k..': '..v)
+            end
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+        return 0
+    end
+
+We will get the output:
+
+::
+
+    Connection: keep-alive
+    Content-Type: text/plain
+    Date: Thu, 20 Mar 2014 06:12:20 GMT
+    Cache-Control: max-age=864000
+    Last-Modified: Sun, 19 May 2013 13:22:01 GMT
+    Accept-Ranges: bytes
+    Content-Length: 15
+    Server: ATS/5.0.0
+
+
+`TOP <#ts-lua-plugin>`_
+
+
+ts.server_request.get_uri
+-------------------------
+**syntax:** *ts.server_request.get_uri()*
+
+**context:** function @ TS_LUA_HOOK_SEND_REQUEST_HDR hook point or later
+
+**description:** This function can be used to retrieve the server request's path.
+
+Here is an example:
+
+::
+
+    function send_request()
+        local uri = ts.server_request.get_uri()
+        print(uri)
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_REQUEST_HDR, send_request)
+        return 0
+    end
+
+Then ``GET /am.txt?a=1`` will yield the output:
+
+``/am.txt``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_request.set_uri
+-------------------------
+**syntax:** *ts.server_request.set_uri(PATH)*
+
+**context:** function @ TS_LUA_HOOK_SEND_REQUEST_HDR hook point
+
+**description:** This function can be used to override the server request's path.
+
+The PATH argument must be a Lua string and starts with ``/``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_request.get_uri_args
+------------------------------
+**syntax:** *ts.server_request.get_uri_args()*
+
+**context:** function @ TS_LUA_HOOK_SEND_REQUEST_HDR hook point or later
+
+**description:** This function can be used to retrieve the server request's query string.
+
+Here is an example:
+
+::
+
+    function send_request()
+        local query = ts.server_request.get_uri_args()
+        print(query)
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_REQUEST_HDR, send_request)
+        return 0
+    end
+
+Then ``GET /st?a=1&b=2`` will yield the output:
+
+``a=1&b=2``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_request.set_uri_args
+------------------------------
+**syntax:** *ts.server_request.set_uri_args(QUERY_STRING)*
+
+**context:** function @ TS_LUA_HOOK_SEND_REQUEST_HDR hook point
+
+**description:** This function can be used to override the server request's query string.
+
+::
+
+    ts.server_request.set_uri_args('n=6&p=7')
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_request.header.HEADER
+-------------------------------
+**syntax:** *ts.server_request.header.HEADER = VALUE*
+
+**syntax:** *ts.server_request.header[HEADER] = VALUE*
+
+**syntax:** *VALUE = ts.server_request.header.HEADER*
+
+**context:** function @ TS_LUA_HOOK_SEND_REQUEST_HDR hook point or later
+
+**description:** Set, add to, clear or get the current server request's HEADER.
+
+Here is an example:
+
+::
+
+    function send_request()
+        local ua = ts.server_request.header['User-Agent']
+        print(ua)
+        ts.server_request.header['Accept-Encoding'] = 'gzip'
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_REQUEST_HDR, send_request)
+        return 0
+    end
+
+Then ``GET /st HTTP/1.1\r\nHost: b.tb.cn\r\nUser-Agent: Mozilla/5.0\r\n...`` will yield the output:
+
+``Mozilla/5.0``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_request.get_headers
+-----------------------------
+**syntax:** *ts.server_request.get_headers()*
+
+**context:** function @ TS_LUA_HOOK_SEND_REQUEST_HDR hook point or later
+
+**description:** Returns a Lua table holding all the headers for the current server request.
+
+Here is an example:
+
+::
+
+    function send_request()
+        hdrs = ts.cached_response.get_headers()
+        for k, v in pairs(hdrs) do
+            print(k..': '..v)
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_REQUEST_HDR, send_request)
+        return 0
+    end
+
+We will get the output:
+
+::
+
+    Host: b.tb.cn
+    User-Agent: curl/7.19.7
+    Accept: */*
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_response.get_status
+-----------------------------
+**syntax:** *status = ts.server_response.get_status()*
+
+**context:** function @ TS_LUA_HOOK_READ_RESPONSE_HDR hook point or later
+
+**description:** This function can be used to retrieve the status code of the origin server's response. A Lua number
+will be returned.
+
+Here is an example:
+
+::
+
+    function read_response()
+        local code = ts.server_response.get_status()
+        print(code)         -- 200
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_READ_RESPONSE_HDR, read_response)
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_'
+
+ts.server_response.set_status
+-----------------------------
+**syntax:** *ts.server_response.set_status(NUMBER)*
+
+**context:** function @ TS_LUA_HOOK_READ_RESPONSE_HDR hook point
+
+**description:** This function can be used to set the status code of the origin server's response.
+
+Here is an example:
+
+::
+
+    function read_response()
+        ts.server_response.set_status(404)
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_READ_RESPONSE_HDR, read_response)
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_'
+
+ts.server_response.get_version
+------------------------------
+**syntax:** *ver = ts.server_response.get_version()*
+
+**context:** function @ TS_LUA_HOOK_READ_RESPONSE_HDR hook point or later.
+
+**description:** Return the http version string of the server response.
+
+Current possible values are 1.0, 1.1, and 0.9.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_response.set_version
+------------------------------
+**syntax:** *ts.server_response.set_version(VERSION_STR)*
+
+**context:** function @ TS_LUA_HOOK_READ_RESPONSE_HDR hook point
+
+**description:** Set the http version of the server response with the VERSION_STR
+
+::
+
+    ts.server_response.set_version('1.0')
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_response.header.HEADER
+--------------------------------
+**syntax:** *ts.server_response.header.HEADER = VALUE*
+
+**syntax:** *ts.server_response.header[HEADER] = VALUE*
+
+**syntax:** *VALUE = ts.server_response.header.HEADER*
+
+**context:** function @ TS_LUA_HOOK_READ_RESPONSE_HDR hook point or later.
+
+**description:** Set, add to, clear or get the current server response's HEADER.
+
+Here is an example:
+
+::
+
+    function read_response()
+        local ct = ts.server_response.header['Content-Type']
+        print(ct)
+        ts.server_response.header['Cache-Control'] = 'max-age=14400'
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_READ_RESPONSE_HDR, read_response)
+        return 0
+    end
+
+We will get the output:
+
+``text/html``
+
+
+`TOP <#ts-lua-plugin>`_'
+
+ts.server_response.get_headers
+------------------------------
+**syntax:** *ts.server_response.get_headers()*
+
+**context:** function @ TS_LUA_HOOK_READ_RESPONSE_HDR hook point or later
+
+**description:** Returns a Lua table holding all the headers for the current server response.
+
+Here is an example:
+
+::
+
+    function read_response()
+        hdrs = ts.server_response.get_headers()
+        for k, v in pairs(hdrs) do
+            print(k..': '..v)
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_READ_RESPONSE_HDR, read_response)
+        return 0
+    end
+
+We will get the output:
+
+::
+
+    Server: nginx/1.5.9
+    Date: Tue, 18 Mar 2014 10:12:25 GMT
+    Content-Type: text/html
+    Content-Length: 555
+    Last-Modified: Mon, 19 Aug 2013 14:25:55 GMT
+    Connection: keep-alive
+    ETag: "52122af3-22b"
+    Cache-Control: max-age=14400
+    Accept-Ranges: bytes
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.get_status
+-----------------------------
+**syntax:** *status = ts.client_response.get_status()*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point
+
+**description:** This function can be used to retrieve the status code of the response to the client. A Lua number will
+be returned.
+
+Here is an example:
+
+::
+
+    function send_response()
+        local code = ts.client_response.get_status()
+        print(code)         -- 200
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.set_status
+-----------------------------
+**syntax:** *ts.client_response.set_status(NUMBER)*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point
+
+**description:** This function can be used to set the status code of the response to the client.
+
+Here is an example:
+
+::
+
+    function send_response()
+        ts.client_response.set_status(404)
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.get_version
+------------------------------
+**syntax:** *ver = ts.client_response.get_version()*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point.
+
+**description:** Return the http version string of the response to the client.
+
+Current possible values are 1.0, 1.1, and 0.9.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.set_version
+------------------------------
+**syntax:** *ts.client_response.set_version(VERSION_STR)*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point
+
+**description:** Set the http version of the response to the client with the VERSION_STR
+
+::
+
+    ts.client_response.set_version('1.0')
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.header.HEADER
+--------------------------------
+**syntax:** *ts.client_response.header.HEADER = VALUE*
+
+**syntax:** *ts.client_response.header[HEADER] = VALUE*
+
+**syntax:** *VALUE = ts.client_response.header.HEADER*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point.
+
+**description:** Set, add to, clear or get the current client response's HEADER.
+
+Here is an example:
+
+::
+
+    function send_response()
+        local ct = ts.client_response.header['Content-Type']
+        print(ct)
+        ts.client_response.header['Cache-Control'] = 'max-age=3600'
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+We will get the output:
+
+``text/html``
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.get_headers
+------------------------------
+**syntax:** *ts.client_response.get_headers()*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point.
+
+**description:** Returns a Lua table holding all the headers for the current client response.
+
+Here is an example:
+
+::
+
+    function send_response()
+        hdrs = ts.client_response.get_headers()
+        for k, v in pairs(hdrs) do
+            print(k..': '..v)
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+We will get the output:
+
+::
+
+    Server: ATS/5.0.0
+    Date: Tue, 18 Mar 2014 10:12:25 GMT
+    Content-Type: text/html
+    Transfer-Encoding: chunked
+    Last-Modified: Mon, 19 Aug 2013 14:25:55 GMT
+    Connection: keep-alive
+    Cache-Control: max-age=14400
+    Age: 2641
+    Accept-Ranges: bytes
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.client_response.set_error_resp
+---------------------------------
+**syntax:** *ts.client_response.set_error_resp(CODE, BODY)*
+
+**context:** function @ TS_LUA_HOOK_SEND_RESPONSE_HDR hook point.
+
+**description:** This function can be used to set the error response to the client.
+
+With this function we can jump to send error response to the client if exception exists, meanwhile we should return `-1`
+from the function where exception raises.
+
+Here is an example:
+
+::
+
+    function send_response()
+        ts.client_response.set_error_resp(404, 'bad luck :(\n')
+    end
+
+    function cache_lookup()
+        return -1
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+We will get the response like this:
+
+::
+
+    HTTP/1.1 404 Not Found
+    Date: Tue, 18 Mar 2014 11:16:00 GMT
+    Connection: keep-alive
+    Server: ATS/5.0.0
+    Content-Length: 12
+
+    bad luck :(
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.resp_cache_transformed
+------------------------------
+**syntax:** *ts.http.resp_cache_transformed(BOOL)*
+
+**context:** do_remap or do_global_* or later
+
+**description**: This function can be used to tell trafficserver whether to cache the transformed data.
+
+Here is an example:
+
+::
+
+    function upper_transform(data, eos)
+        if eos == 1 then
+            return string.upper(data)..'S.H.E.\n', eos
+        else
+            return string.upper(data), eos
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_RESPONSE_TRANSFORM, upper_transform)
+        ts.http.resp_cache_transformed(0)
+        return 0
+    end
+
+This function is usually called after we hook TS_LUA_RESPONSE_TRANSFORM.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.resp_cache_untransformed
+--------------------------------
+**syntax:** *ts.http.resp_cache_untransformed(BOOL)*
+
+**context:** do_remap or do_global_* or later
+
+**description**: This function can be used to tell trafficserver whether to cache the untransformed data.
+
+Here is an example:
+
+::
+
+    function upper_transform(data, eos)
+        if eos == 1 then
+            return string.upper(data)..'S.H.E.\n', eos
+        else
+            return string.upper(data), eos
+        end
+    end
+
+    function do_remap()
+        ts.hook(TS_LUA_RESPONSE_TRANSFORM, upper_transform)
+        ts.http.resp_cache_untransformed(1)
+        return 0
+    end
+
+This function is usually called after we hook TS_LUA_RESPONSE_TRANSFORM.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.skip_remapping_set
+-------------------------
+**syntax:** *ts.http.skip_remapping_set(BOOL)*
+
+**context:** do_global_read_request
+
+**description**: This function can be used to tell trafficserver to skip doing remapping
+
+Here is an example:
+
+::
+
+    function do_global_read_request()
+        ts.http.skip_remapping_set(1);
+        ts.client_request.header['Host'] = 'www.yahoo.com'
+        return 0
+    end
+
+This function is usually called in do_global_read_request function
+
+ts.http.is_internal_request
+---------------------------
+**syntax:** *ts.http.is_internal_request()*
+
+** context:** do_remap or do_global_* or later
+
+** description**: This function can be used to tell is a request is internal or not
+
+Here is an example:
+
+::
+
+    function do_global_read_request()
+        local internal = ts.http.is_internal_request()
+        ts.debug(internal)
+        return 0
+    end
+
+ts.add_package_path
+-------------------
+**syntax:** *ts.add_package_path(lua-style-path-str)*
+
+**context:** init stage of the lua script
+
+**description:** Adds the Lua module search path used by scripts.
+
+The path string is in standard Lua path form.
+
+Here is an example:
+
+::
+
+    ts.add_package_path('/home/a/test/lua/pac/?.lua')
+    local nt = require("nt")
+    function do_remap()
+        print(nt.t9(7979))
+        return 0
+    end
+
+`TOP <#ts-lua-plugin>`_
+
+
+ts.add_package_cpath
+--------------------
+**syntax:** *ts.add_package_cpath(lua-style-cpath-str)*
+
+**context:** init stage of the lua script
+
+**description:** Adds the Lua C-module search path used by scripts.
+
+The cpath string is in standard Lua cpath form.
+
+Here is an example:
+
+::
+
+    ts.add_package_cpath('/home/a/test/c/module/?.so')
+    local ma = require("ma")
+    function do_remap()
+        print(ma.ft())
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+
+ts.md5
+------
+**syntax:** *digest = ts.md5(str)*
+
+**context:** global
+
+**description:** Returns the hexadecimal representation of the MD5 digest of the ``str`` argument.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        uri = ts.client_request.get_uri()
+        print(uri)              -- /foo
+        print(ts.md5(uri))      -- 1effb2475fcfba4f9e8b8a1dbc8f3caf
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.md5_bin
+----------
+**syntax:** *digest = ts.md5_bin(str)*
+
+**context:** global
+
+**description:** Returns the binary form of the MD5 digest of the ``str`` argument.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        uri = ts.client_request.get_uri()
+        bin = ts.md5_bin(uri)
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.sha1
+-------
+**syntax:** *digest = ts.sha1(str)*
+
+**context:** global
+
+**description:** Returns the hexadecimal representation of the SHA-1 digest of the ``str`` argument.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        uri = ts.client_request.get_uri()
+        print(uri)              -- /foo
+        print(ts.sha1(uri))     -- 6dbd548cc03e44b8b44b6e68e56255ce4273ae49
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.sha1_bin
+-----------
+**syntax:** *digest = ts.sha1_bin(str)*
+
+**context:** global
+
+**description:** Returns the binary form of the SHA-1 digest of the ``str`` argument.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        uri = ts.client_request.get_uri()
+        bin = ts.sha1_bin(uri)
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.intercept
+------------
+**syntax:** *ts.intercept(FUNCTION)*
+
+**context:** do_remap or do_global_*
+
+**description:** Intercepts the client request and processes it in FUNCTION.
+
+We should construct the response for the client request, and the request will not be processed by other modules, like
+hostdb, cache, origin server...
+
+Here is an example:
+
+::
+
+    require 'os'
+
+    function send_data()
+        local nt = os.time()..' Zheng.\n'
+        local resp =  'HTTP/1.0 200 OK\r\n' ..
+                      'Server: ATS/3.2.0\r\n' ..
+                      'Content-Type: text/plain\r\n' ..
+                      'Content-Length: ' .. string.format('%d', string.len(nt)) .. '\r\n' ..
+                      'Last-Modified: ' .. os.date("%a, %d %b %Y %H:%M:%S GMT", os.time()) .. '\r\n' ..
+                      'Connection: keep-alive\r\n' ..
+                      'Cache-Control: max-age=7200\r\n' ..
+                      'Accept-Ranges: bytes\r\n\r\n' ..
+                      nt
+        ts.say(resp)
+    end
+
+    function do_remap()
+        ts.http.intercept(send_data)
+        return 0
+    end
+
+Then we will get the response like this:
+
+::
+
+    HTTP/1.1 200 OK
+    Server: ATS/5.0.0
+    Content-Type: text/plain
+    Content-Length: 18
+    Last-Modified: Tue, 18 Mar 2014 08:23:12 GMT
+    Cache-Control: max-age=7200
+    Accept-Ranges: bytes
+    Date: Tue, 18 Mar 2014 12:23:12 GMT
+    Age: 0
+    Connection: keep-alive
+
+    1395145392 Zheng.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.say
+------
+**syntax:** *ts.say(data)*
+
+**context:** *intercept or server_intercept*
+
+**description:** Write response to ATS within intercept or server_intercept.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.flush
+--------
+**syntax:** *ts.flush()*
+
+**context:** *intercept or server_intercept*
+
+**description:** Flushes the output to ATS within intercept or server_intercept.
+
+In synchronous mode, the function will not return until all output data has been written into the system send buffer.
+Note that using the Lua coroutine mechanism means that this function does not block the ATS event loop even in the
+synchronous mode.
+
+Here is an example:
+
+::
+
+    require 'os'
+
+    function send_data()
+        ss = 'wo ai yu ye hua\n'
+        local resp =  'HTTP/1.0 200 OK\r\n' ..
+                      'Server: ATS/3.2.0\r\n' ..
+                      'Content-Type: text/plain\r\n' ..
+                      'Content-Length: ' .. string.format('%d', 5*string.len(ss)) .. '\r\n' ..
+                      'Last-Modified: ' .. os.date("%a, %d %b %Y %H:%M:%S GMT", os.time()) .. '\r\n' ..
+                      'Connection: keep-alive\r\n' ..
+                      'Cache-Control: max-age=7200\r\n' ..
+                      'Accept-Ranges: bytes\r\n\r\n'
+        ts.say(resp)
+        for i=1, 5 do
+            ts.say(ss)
+            ts.flush()
+        end
+    end
+
+    function do_remap()
+        ts.http.intercept(send_data)
+        return 0
+    end
+
+We will get the response like this:
+
+::
+
+    HTTP/1.1 200 OK
+    Server: ATS/5.0.0
+    Content-Type: text/plain
+    Content-Length: 80
+    Last-Modified: Tue, 18 Mar 2014 08:38:29 GMT
+    Cache-Control: max-age=7200
+    Accept-Ranges: bytes
+    Date: Tue, 18 Mar 2014 12:38:29 GMT
+    Age: 0
+    Connection: keep-alive
+
+    wo ai yu ye hua
+    wo ai yu ye hua
+    wo ai yu ye hua
+    wo ai yu ye hua
+    wo ai yu ye hua
+
+`TOP <#ts-lua-plugin>`_
+
+ts.sleep
+--------
+**syntax:** *ts.sleep(sec)*
+
+**context:** *intercept or server_intercept*
+
+**description:** Sleeps for the specified seconds without blocking.
+
+Behind the scene, this method makes use of the ATS event model.
+
+Here is an example:
+
+::
+
+    require 'os'
+
+    function send_data()
+        local nt = os.time()..' Zheng.\n'
+        local resp =  'HTTP/1.0 200 OK\r\n' ..
+                      'Server: ATS/3.2.0\r\n' ..
+                      'Content-Type: text/plain\r\n' ..
+                      'Content-Length: ' .. string.format('%d', string.len(nt)) .. '\r\n\r\n' ..
+                      nt
+        ts.sleep(3)
+        ts.say(resp)
+    end
+
+    function do_remap()
+        ts.http.intercept(send_data)
+        return 0
+    end
+
+`TOP <#ts-lua-plugin>`_
+
+ts.server_intercept
+-------------------
+**syntax:** *ts.server_intercept(FUNCTION)*
+
+**context:** do_remap or do_global_*
+
+**description:** Intercepts the server request and acts as the origin server.
+
+We should construct the response for the server request, so the request will be processed within FUNCTION in case of
+miss for the cache lookup.
+
+Here is an example:
+
+::
+
+    require 'os'
+
+    function send_data()
+        local nt = os.time()..' Zheng.\n'
+        local resp =  'HTTP/1.0 200 OK\r\n' ..
+                      'Server: ATS/3.2.0\r\n' ..
+                      'Content-Type: text/plain\r\n' ..
+                      'Content-Length: ' .. string.format('%d', string.len(nt)) .. '\r\n' ..
+                      'Last-Modified: ' .. os.date("%a, %d %b %Y %H:%M:%S GMT", os.time()) .. '\r\n' ..
+                      'Connection: keep-alive\r\n' ..
+                      'Cache-Control: max-age=7200\r\n' ..
+                      'Accept-Ranges: bytes\r\n\r\n' ..
+                      nt
+        ts.say(resp)
+    end
+
+    function do_remap()
+        ts.http.server_intercept(send_data)
+        return 0
+    end
+
+Then we will get the response like this:
+
+::
+
+    HTTP/1.1 200 OK
+    Server: ATS/5.0.0
+    Content-Type: text/plain
+    Content-Length: 18
+    Last-Modified: Tue, 18 Mar 2014 08:23:12 GMT
+    Cache-Control: max-age=7200
+    Accept-Ranges: bytes
+    Date: Tue, 18 Mar 2014 12:23:12 GMT
+    Age: 1890
+    Connection: keep-alive
+
+    1395145392 Zheng.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.config_int_get
+----------------------
+**syntax:** *val = ts.http.config_int_get(CONFIG)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** Configuration option which has a int value can be retrieved with this function.
+
+::
+
+    val = ts.http.config_int_get(TS_LUA_CONFIG_HTTP_CACHE_HTTP)
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.config_int_set
+----------------------
+**syntax:** *ts.http.config_int_set(CONFIG, NUMBER)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to overwrite the configuration options.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        ts.http.config_int_set(TS_LUA_CONFIG_HTTP_CACHE_HTTP, 0)    -- bypass the cache processor
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.config_float_get
+------------------------
+**syntax:** *val = ts.http.config_float_get(CONFIG)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** Configuration option which has a float value can be retrieved with this function.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.config_float_set
+------------------------
+**syntax:** *ts.http.config_float_set(CONFIG, NUMBER)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to overwrite the configuration options.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.config_string_get
+-------------------------
+**syntax:** *val = ts.http.config_string_get(CONFIG)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** Configuration option which has a string value can be retrieved with this function.
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.config_string_set
+-------------------------
+**syntax:** *ts.http.config_string_set(CONFIG, NUMBER)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to overwrite the configuration options.
+
+
+`TOP <#ts-lua-plugin>`_
+
+Http config constants
+---------------------
+**context:** do_remap or do_global_* or later
+
+::
+
+    TS_LUA_CONFIG_URL_REMAP_PRISTINE_HOST_HDR
+    TS_LUA_CONFIG_HTTP_CHUNKING_ENABLED
+    TS_LUA_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED
+    TS_LUA_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME
+    TS_LUA_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE
+    TS_LUA_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN
+    TS_LUA_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT
+    TS_LUA_CONFIG_HTTP_KEEP_ALIVE_POST_OUT
+    TS_LUA_CONFIG_HTTP_SHARE_SERVER_SESSIONS
+    TS_LUA_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT
+    TS_LUA_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT
+    TS_LUA_CONFIG_NET_SOCK_OPTION_FLAG_OUT
+    TS_LUA_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT
+    TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM
+    TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER
+    TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT
+    TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE
+    TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP
+    TS_LUA_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP
+    TS_LUA_CONFIG_HTTP_RESPONSE_SERVER_ENABLED
+    TS_LUA_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR
+    TS_LUA_CONFIG_HTTP_SERVER_TCP_INIT_CWND
+    TS_LUA_CONFIG_HTTP_SEND_HTTP11_REQUESTS
+    TS_LUA_CONFIG_HTTP_CACHE_HTTP
+    TS_LUA_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL
+    TS_LUA_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE
+    TS_LUA_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE
+    TS_LUA_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE
+    TS_LUA_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE
+    TS_LUA_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES
+    TS_LUA_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION
+    TS_LUA_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC
+    TS_LUA_CONFIG_HTTP_CACHE_REQUIRED_HEADERS
+    TS_LUA_CONFIG_HTTP_INSERT_REQUEST_VIA_STR
+    TS_LUA_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR
+    TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME
+    TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME
+    TS_LUA_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME
+    TS_LUA_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME
+    TS_LUA_CONFIG_HTTP_CACHE_MAX_STALE_AGE
+    TS_LUA_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN
+    TS_LUA_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT
+    TS_LUA_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN
+    TS_LUA_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT
+    TS_LUA_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT
+    TS_LUA_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS
+    TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES
+    TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER
+    TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES
+    TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT
+    TS_LUA_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT
+    TS_LUA_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME
+    TS_LUA_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD
+    TS_LUA_CONFIG_HTTP_CACHE_FUZZ_TIME
+    TS_LUA_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME
+    TS_LUA_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS
+    TS_LUA_CONFIG_HTTP_RESPONSE_SERVER_STR
+    TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR
+    TS_LUA_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY
+    TS_LUA_CONFIG_NET_SOCK_PACKET_MARK_OUT
+    TS_LUA_CONFIG_NET_SOCK_PACKET_TOS_OUT
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.cntl_get
+----------------
+**syntax:** *val = ts.http.cntl_get(CNTL_TYPE)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to retireve the value of control channel.
+
+::
+
+    val = ts.http.cntl_get(TS_LUA_HTTP_CNTL_GET_LOGGING_MODE)
+
+
+`TOP <#ts-lua-plugin>`_
+
+ts.http.cntl_set
+----------------
+**syntax:** *ts.http.cntl_set(CNTL_TYPE, BOOL)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to set the value of control channel.
+
+Here is an example:
+
+::
+
+    function do_remap()
+        ts.http.cntl_set(TS_LUA_HTTP_CNTL_SET_LOGGING_MODE, 0)      -- do not log the request
+        return 0
+    end
+
+
+`TOP <#ts-lua-plugin>`_
+
+Http control channel constants
+------------------------------
+**context:** do_remap or do_global_* or later
+
+::
+
+    TS_LUA_HTTP_CNTL_GET_LOGGING_MODE
+    TS_LUA_HTTP_CNTL_SET_LOGGING_MODE
+    TS_LUA_HTTP_CNTL_GET_INTERCEPT_RETRY_MODE
+    TS_LUA_HTTP_CNTL_SET_INTERCEPT_RETRY_MODE
+
+`TOP <#ts-lua-plugin>`_
+
+ts.mgmt.get_counter
+-------------------
+**syntax:** *val = ts.mgmt.get_counter(RECORD_NAME)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to retrieve the record value which has a counter type.
+
+::
+
+    n = ts.mgmt.get_counter('proxy.process.http.incoming_requests')
+
+`TOP <#ts-lua-plugin>`_
+
+ts.mgmt.get_int
+---------------
+**syntax:** *val = ts.mgmt.get_int(RECORD_NAME)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to retrieve the record value which has a int type.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.mgmt.get_float
+-----------------
+**syntax:** *val = ts.mgmt.get_float(RECORD_NAME)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to retrieve the record value which has a float type.
+
+`TOP <#ts-lua-plugin>`_
+
+ts.mgmt.get_string
+------------------
+**syntax:** *val = ts.mgmt.get_string(RECORD_NAME)*
+
+**context:** do_remap or do_global_* or later.
+
+**description:** This function can be used to retrieve the record value which has a string type.
+
+::
+
+    name = ts.mgmt.get_string('proxy.config.product_name')
+
+`TOP <#ts-lua-plugin>`_
+
+Todo
+====
+* ts.fetch
+* ts.cache_xxx
+* `support lua-5.2 <https://github.com/portl4t/ts-lua/wiki/support-Lua-5.2>`_
+
+Currently when we use ts_lua as a global plugin, each global hook is using a separate lua state for the same
+transaction. This can be wasteful. Also the state cannot be reused for the same transaction across the global hooks. The
+alternative will be to use a TXN_START hook to create a lua state first and then add each global hook in the lua script
+as transaction hook instead. But this will have problem down the road when we need to have multiple plugins to work
+together in some proper orderings. In the future, we should consider different approach, such as creating and
+maintaining the lua state in the ATS core. 
+
+`TOP <#ts-lua-plugin>`_
+
+More docs
+=========
+
+* https://github.com/portl4t/ts-lua
+
+`TOP <#ts-lua-plugin>`_
+
diff --git a/doc/reference/plugins/xdebug.en.rst b/doc/reference/plugins/xdebug.en.rst
new file mode 100644
index 00000000..5a4b3404
--- /dev/null
+++ b/doc/reference/plugins/xdebug.en.rst
@@ -0,0 +1,47 @@
+.. _xdebug-plugin:
+
+XDebug Plugin
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The `XDebug` plugin allows HTTP clients to debug the operation of
+the Traffic Server cache using the ``X-Debug`` header. The plugin
+is triggered by the presence of the ``X-Debug`` header in the client
+request. The contents of this header should be the names of the
+debug headers that are desired in the response. The `XDebug` plugin
+will remove the ``X-Debug`` header from the client request and
+inject the desired headers into the client response.
+
+`XDebug` is a global plugin. It is installed by adding it to the
+:file:`plugin.config` file.
+
+Debugging Headers
+=================
+
+The `XDebug` plugin is able to generate the following debugging headers:
+
+Via
+    If the ``Via`` header is requested, the `XDebug` plugin sets the
+    :ts:cv:`proxy.config.http.insert_response_via_str` configuration variable
+    to ``3`` for the request.
+
+X-Cache-Key
+    The ``X-Cache-Key`` contains the URL that identifies the HTTP object in the
+    Traffic Server cache. This header is particularly useful if a custom cache
+    key is being used.
diff --git a/doc/sbuild b/doc/sbuild
new file mode 100755
index 00000000..ee1a62c9
--- /dev/null
+++ b/doc/sbuild
@@ -0,0 +1,27 @@
+#! /usr/bin/env sh
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# sbuild: trivial sphinx-build wrapper to handle recursive make variable expansion.
+
+SPHINXBUILD="$1"
+shift
+
+exec $SPHINXBUILD \
+  `eval echo \\$PAPEROPT_$PAPER` \
+  "$@"
+
diff --git a/doc/sdk/actions-guide.en.rst b/doc/sdk/actions-guide.en.rst
new file mode 100644
index 00000000..e05e0acb
--- /dev/null
+++ b/doc/sdk/actions-guide.en.rst
@@ -0,0 +1,178 @@
+Actions Guide
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   actions-guide/hosts-lookup-api.en
+
+
+Actions
+-------
+
+An **action** is a handle to an operation initiated by a plugin that has
+not yet completed. For example: when a plugin connects to a remote
+server, it uses the call ``TSNetConnect`` - which takes ``TSCont`` as an
+argument to call back when the connection is established.
+``TSNetConnect`` might not call the continuation back immediately and
+will return an ``TSAction`` structure that the caller can use to cancel
+the operation. Cancelling the operation does not necessarily mean that
+the operation will not occur; it simply means that the continuation
+passed into the operation will not be called back. In such an example,
+the connection might still occur if the action is cancelled; however,
+the continuation that initiated the connection would not be called back.
+
+In the preceding example, it is also possible that the connection will
+complete and call back the continuation before ``TSNetConnect`` returns.
+If that occurs, then ``TSNetConnect`` returns a special action that
+causes ``TSActionDone`` to return ``1``. This specifies that the
+operation has already completed, so it's pointless to try to cancel the
+operation. Also note that an action will never change from non-completed
+to completed. When the operation actually succeeds and the continuation
+is called back, the continuation must zero out its action pointer to
+indicate to itself that the operation succeeded.
+
+The asynchronous nature of all operations in Traffic Server necessitates
+actions. You should notice from the above discussion that once a call to
+a function like ``TSNetConnect`` is made by a continuation and that
+function returns a valid action (``TSActionDone`` returns ``0``), it is
+not safe for the continuation to do anything else except return from its
+handler function. It is not safe to modify or examine the continuation's
+data because the continuation may have already been destroyed.
+
+Below is an example of typical usage for an action:
+
+.. code-block:: c
+
+        #include <ts/ts.h>
+        static int
+        handler (TSCont contp, TSEvent event, void *edata)
+        {
+            if (event == TS_EVENT_IMMEDIATE) {
+                TSAction actionp = TSNetConnect (contp, 127.0.0.1, 9999);
+                if (!TSActionDone (actionp)) {
+                    TSContDataSet (contp, actionp);
+                } else {
+                    /* We've already been called back... */
+                    return 0;
+                }
+            } else if (event == TS_EVENT_NET_CONNECT) {
+                /* Net connection succeeded */
+                TSContDataSet (contp, NULL);
+                return 0;
+            } else if (event == TS_EVENT_NET_CONNECT_FAILED) {
+                /* Net connection failed */
+                TSContDataSet (contp, NULL);
+                return 0;
+            } 
+            return 0;
+        }
+
+        void
+        TSPluginInit (int argc, const char *argv[])
+        {
+            TSCont contp;
+
+            contp = TSContCreate (handler, TSMutexCreate ());
+
+            /* We don't want to call things out of TSPluginInit
+               directly since it's called before the rest of the
+               system is initialized. We'll simply schedule an event
+               on the continuation to occur as soon as the rest of
+               the system is started up. */
+            TSContSchedule (contp, 0);
+        }
+
+The example above shows a simple plugin that creates a continuation and
+then schedules it to be called immediately. When the plugin's handler
+function is called the first time, the event is ``TS_EVENT_IMMEDIATE``.
+The plugin then tries to open a net connection to port 9999 on
+``localhost`` (127.0.0.1). The IP description was left in cider notation
+to further clarify what is going on; also note that the above won't
+actually compile until the IP address is modified. The action returned
+from ``TSNetConnect`` is examined by the plugin. If the operation has
+not completed, then the plugin stores the action in its continuation.
+Otherwise, the plugin knows it has already been called back and there is
+no reason to store the action pointer.
+
+A final question might be, "why would a plugin want to cancel an
+action?" In the above example, a valid reason could be to place a limit
+on the length of time it takes to open a connection. The plugin could
+schedule itself to get called back in 30 seconds and then initiate the
+net connection. If the timeout expires first, then the plugin would
+cancel the action. The following sample code implements this:
+
+.. code-block:: c
+
+        #include <ts/ts.h>
+        static int
+        handler (TSCont contp, TSEvent event, void *edata)
+        {
+            switch (event) {
+                case (TS_EVENT_IMMEDIATE):
+                    TSContSchedule (contp, 30000);
+                    TSAction actionp = TSNetConnect(contp, 127.0.0.1, 9999);
+                    if (!TSActionDone (actionp)) {
+                        TSContDataSet (contp, actionp);
+                    } else {
+                        /* We've already been called back ... */
+                    }
+                    break;
+
+                case (TS_EVENT_TIMEOUT):
+                    TSAction actionp = TSContDataGet (contp);
+                    if (!TSActionDone(actionp)) {
+                        TSActionCancel (actionp);
+                    }
+                    break;
+
+                case (TS_EVENT_NET_CONNECT):
+                    /* Net connection succeeded */
+                    TSContDataSet (contp, NULL);
+                    break;
+
+                case (TS_EVENT_NET_CONNECT_FAILED):
+                    /* Net connection failed */
+                    TSContDataSet (contp, NULL);
+                    break;
+
+            } 
+            return 0;
+        }
+
+        void
+        TSPluginInit (int argc, const char *argv[])
+        {
+            TSCont contp;
+
+            contp = TSContCreate (handler, TSMutexCreate ());
+            /* We don't want to call things out of TSPluginInit
+               directly since it's called before the rest of the
+               system is initialized. We'll simply schedule an event
+               on the continuation to occur as soon as the rest of
+               the system is started up. */
+            TSContSchedule (contp, 0);
+        }
+
+The action functions are:
+
+-  :c:func:`TSActionCancel`
+-  :c:func:`TSActionDone`
+
diff --git a/doc/sdk/actions-guide/hosts-lookup-api.en.rst b/doc/sdk/actions-guide/hosts-lookup-api.en.rst
new file mode 100644
index 00000000..d77ee711
--- /dev/null
+++ b/doc/sdk/actions-guide/hosts-lookup-api.en.rst
@@ -0,0 +1,28 @@
+Hosts Lookup API
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The hosts lookup enables plugins to ask Traffic Server to do a host
+lookup of a host name, much like a DNS lookup.
+
+The hosts lookup functions are as follows:
+
+-  :c:func:`TSHostLookup`
+-  :c:func:`TSHostLookupResultAddrGet`
+
diff --git a/doc/sdk/adding-statistics.en.rst b/doc/sdk/adding-statistics.en.rst
new file mode 100644
index 00000000..a49c26cc
--- /dev/null
+++ b/doc/sdk/adding-statistics.en.rst
@@ -0,0 +1,70 @@
+Adding Statistics
+*****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+This chapter describes how to add statistics to your plugins. Statistics
+can be coupled or uncoupled; **coupled** statistics are quantities that
+are related and must therefore be updated together. The Traffic Server
+API statistics functions add your plugin's statistics to the Traffic
+Server statistics system. You can view your plugin statistics as you
+would any other Traffic Server statistic, using Traffic Line (Traffic
+Server's command line interface). This chapter contains the following
+topics:
+
+.. toctree::
+   :maxdepth: 2
+
+   adding-statistics/coupled-statistics.en
+   adding-statistics/viewing-statistics-using-traffic-line.en
+
+
+Uncoupled Statistics
+--------------------
+
+A statistic is an object of type ``TSStat``. The value of the statistic
+is of type ``TSStatType``. The possible ``TSStatTypes`` are:
+
+-  ``TSSTAT_TYPE_INT64``
+
+-  ``TSSTAT_TYPE_FLOAT``
+
+There is *no* ``TSSTAT_TYPE_INT32``.
+
+To add uncoupled statistics, follow the steps below:
+
+1. Declare your statistic as a global variable in your plugin. For
+   example:
+
+   .. code-block:: c
+
+      static TSStat my_statistic;
+
+2. In ``TSPluginInit``, create new statistics using ``TSStatCreate``.
+   When you create a new statistic, you need to give it an "external"
+   name that the Traffic Server command line interface (Traffic Line)
+   uses to access the statistic. For example:
+
+   .. code-block:: c
+
+      my_statistic = TSStatCreate ("my.statistic", TSSTAT_TYPE_INT64);
+
+3. Modify (increment, decrement, or other modification) your statistic
+   in plugin functions.
+
+
diff --git a/doc/sdk/adding-statistics/coupled-statistics.en.rst b/doc/sdk/adding-statistics/coupled-statistics.en.rst
new file mode 100644
index 00000000..774f509b
--- /dev/null
+++ b/doc/sdk/adding-statistics/coupled-statistics.en.rst
@@ -0,0 +1,117 @@
+Coupled Statistics
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Use coupled statistics for quantities that are related and therefore
+must be updated jointly.
+
+As a very simple example, suppose you have three statistics: ``sum``,
+``part_1``, and ``part_2``. They must always preserve the relationship
+that ``sum = part_1  + part_2``. If you update ``part_1`` without
+updating ``sum`` at the same time, then the equation becomes untrue.
+Therefore, the statistics are said to be *coupled*.
+
+The mechanism for updating coupled statistics jointly is to create local
+copies of global coupled statistics in the routines that modifiy them.
+When each local copy is updated appropriately, do a global update using
+``TSStatsCoupledUpdate``. To specify which statistics are related to one
+another, establish a coupled statistic category and make sure that each
+coupled statistic belongs to the appropriate category. When it is time
+to do the global update, specify the category to be updated.
+
+.. note::
+
+   The local statistic copy must have a duplicate set of statistics as that
+   of the master copy. Local statistics must also be added to the local
+   statistic category in the same order as their master copy counterparts
+   were originally added.
+
+Below are the steps you need to follow, along with a code example taken
+from the ``redirect-1.c`` sample plugin.
+
+To add coupled statistics:
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+1. Declare the global category for your coupled statistics as a global
+   ``TSCoupledStat`` variable in your plugin.
+
+2. Declare your coupled statistics as global ``TSStat`` variables in
+   your plugin.
+
+3. In ``TSPluginInit``, create a new global coupled category using
+   ``TSStatCoupledGlobalCategoryCreate``.
+
+4. In ``TSPluginInit``, create new global coupled statistics using
+   ``TSStatCoupledGlobalAdd``. When you create a new statistic, you need
+   to give it an "external" name that the Traffic Server command line
+   interface (Traffic Line) uses to access the statistic.
+
+5. In any routine wherein you want to modify (increment, decrement, or
+   other modification) your coupled statistics, declare local copies of
+   the coupled category and coupled statistics.
+
+6. Create local copies using ``TSStatCoupledLocalCopyCreate`` and
+   ``TSStatCoupledLocalAdd``.
+
+7. Modify the local copies of your statistics. Then call
+   ``TSStatsCoupledUpdate`` to update the global copies jointly.
+
+8. When you are finished, you must destroy all of the local copies in
+   the category via ``TSStatCoupledLocalCopyDestroy``.
+
+Example Using the redirect-1.c Sample Plugin
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: c
+
+    static TSCoupledStat request_outcomes;
+
+    static TSStat requests_all;
+    static TSStat requests_redirects;
+    static TSStat requests_unchanged;
+
+    request_outcomes = TSStatCoupledGlobalCategoryCreate ("request_outcomes"); 
+
+    requests_all = TSStatCoupledGlobalAdd (request_outcomes, "requests.all", TSSTAT_TYPE_FLOAT);
+    requests_redirects = TSStatCoupledGlobalAdd (request_outcomes, "requests.redirects",
+        TSSTAT_TYPE_INT64);
+    requests_unchanged = TSStatCoupledGlobalAdd (request_outcomes, "requests.unchanged", 
+        TSSTAT_TYPE_INT64);
+
+    TSCoupledStat local_request_outcomes;
+    TSStat local_requests_all;
+    TSStat local_requests_redirects;
+    TSStat local_requests_unchanged;
+
+    local_request_outcomes = TSStatCoupledLocalCopyCreate("local_request_outcomes", 
+        request_outcomes); 
+    local_requests_all = TSStatCoupledLocalAdd(local_request_outcomes, "requests.all.local", 
+        TSSTAT_TYPE_FLOAT);
+    local_requests_redirects = TSStatCoupledLocalAdd(local_request_outcomes, 
+        "requests.redirects.local", TSSTAT_TYPE_INT64);
+    local_requests_unchanged = TSStatCoupledLocalAdd(local_request_outcomes, 
+        "requests.unchanged.local", TSSTAT_TYPE_INT64);
+
+    TSStatFloatAddTo( local_requests_all, 1.0 ) ; 
+    ...
+    TSStatIncrement (local_requests_unchanged); 
+    TSStatsCoupledUpdate(local_request_outcomes); 
+
+    TSStatCoupledLocalCopyDestroy(local_request_outcomes); 
+
diff --git a/doc/sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst b/doc/sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst
new file mode 100644
index 00000000..76327f18
--- /dev/null
+++ b/doc/sdk/adding-statistics/viewing-statistics-using-traffic-line.en.rst
@@ -0,0 +1,35 @@
+Viewing Statistics Using Traffic Line
+*************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. XXX: This documentation seems to be duplicated from the admin docs.
+
+To view statistics for your plugin, follow the steps below:
+
+1. Make sure you know the name of your statistic (i.e., the name used in
+   the ``TSStatCoupledGlobalAdd``, ``TSStatCreate``, or
+   ``TSStatCoupledGlobalCategoryCreate`` call).
+
+2. In your ``<Traffic Server>/bin`` directory, enter the following:
+
+   ::
+
+       ./traffic\_line -r the\_name
+
+
diff --git a/doc/sdk/continuations.en.rst b/doc/sdk/continuations.en.rst
new file mode 100644
index 00000000..286cedcf
--- /dev/null
+++ b/doc/sdk/continuations.en.rst
@@ -0,0 +1,131 @@
+Continuations
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   continuations/how-to-activate-continuations.en
+   continuations/writing-handler-functions.en
+
+The continuation interface is Traffic Server's basic callback mechanism.
+**Continuations** are instances of the opaque data type ``TSCont``. In
+its basic form, a continuation represents a handler function and a
+mutex.
+
+This chapter covers the following topics:
+
+-  `Mutexes and Data`_
+
+-  :doc:`continuations/how-to-activate-continuations.en`
+
+-  :doc:`continuations/writing-handler-functions.en`
+
+Mutexes and Data
+----------------
+
+A continuation must be created with a mutex if your continuation does
+one of the following:
+
+-  is registered globally (``TSHttpHookAdd`` or ``TSHttpSsnHookAdd``) to
+   an HTTP hook and uses ``TSContDataSet/Get``
+
+-  is registered locally (``TSHttpTxnHookAdd``), but for multiple
+   transactions uses ``TSContDataSet/Get``
+
+-  uses ``TSCacheXXX``, ``TSNetXXX``, ``TSHostLookup``, or
+   ``TSContSchedule`` APIs
+
+Before being activated, a caller must grab the continuation's mutex.
+This requirement makes it possible for a continuation's handler function
+to safely access its data and to prevent multiple callers from running
+it at the same time (see the :ref:`about-the-sample-protocol` for usage). The
+data protected by the mutex is any global or continuation data
+associated to the continuation by ``TSContDataSet``. This does not
+include the local data created by the continuation handler function. A
+typical example of continuations created with associated data structures
+and mutexes is the transaction state machine created in the sample
+Protocol plugin (see :ref:`one-way-to-implement-a-transaction-state-machine`).
+
+A reentrant call occurs when the continuation passed as an argument to
+the API can be called in the same stack trace as the function calling
+the API. For example, if you call ``TSCacheRead`` (``contp, mykey``), it
+is possible that ``contp``'s handler will be called directly and then
+``TSCacheRead`` returns.
+
+Caveats that could cause issues include the following:
+
+-  a continuation has data associated with it (``TSContDataGet``).
+
+-  the reentrant call passes itself as a continuation to the reentrant
+   API. In this case, the continuation should not try to access its data
+   after calling the reentrant API. The reason for this is that data may be
+   modified by the section of code in the continuation's handler that
+   handles the event sent by the API. It is recommended that you always
+   return after a reentrant call to avoid accessing something that has been
+   deallocated.
+
+Below is an example, followed by an explanation.
+
+.. code-block:: c
+
+    continuation_handler (TSCont contp, TSEvent event, void *edata) {
+        switch (event) {
+            case event1:
+                TSReentrantCall (contp);
+                /* Return right away after this call */
+                break;
+            case event2:
+                TSContDestroy (contp);
+                break;
+        }
+    }
+
+The above example first assumes that the continuation is called back
+with ``event1``; it then does the first reentrant call that schedules
+the continuation to receive ``event2``. Because the call is reentrant,
+the processor calls back the continuation right away with ``event2`` and
+the continuation is destroyed. If you try to access the continuation or
+one of its members after the reentrant call, then you might access
+something that has been deallocated. To avoid accessing something that
+has been deallocated, never access the continuation or any of its
+members after a reentrant call - just exit the handler.
+
+**Note:** Most HTTP transaction plugin continuations do not need
+non-null mutexes because they're called within the processing of an HTTP
+transaction, and therefore have the transaction's mutex.
+
+It is also possible to specify a continuation's mutex as ``NULL``. This
+should be done only when registering a continuation to a global hook, by
+a call to ``TSHttpHookAdd``. In this case, the continuation can be
+called simultaneously by different instances of HTTP SM running on
+different threads. Having a mutex here would slow and/or hinder Traffic
+Server performance, since all the threads will try to lock the same
+mutex. The drawback of not having a mutex is that such a continuation
+cannot have data associated with it (i.e., ``TSContDataGet/Set`` cannot
+be used).
+
+When using a ``NULL`` mutex it is dangerous to access the continuation's
+data, but usually continuations with ``NULL`` mutexes have no data
+associated with them anyway. An example of such a continuation is one
+that gets called back every time an HTTP request is read, and then
+determines from the request alone if the request should go through or be
+rejected. An HTTP transaction gives its continuation data to the
+``contp``.
+
diff --git a/doc/sdk/continuations/how-to-activate-continuations.en.rst b/doc/sdk/continuations/how-to-activate-continuations.en.rst
new file mode 100644
index 00000000..1dd23c29
--- /dev/null
+++ b/doc/sdk/continuations/how-to-activate-continuations.en.rst
@@ -0,0 +1,36 @@
+How to Activate Continuations
+*****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Continuations are activated when they receive an event or by
+``TSContSchedule`` (which schedules a continuation to receive an event).
+Continuations might receive an event because:
+
+-  Your plugin calls ``TSContCall``
+
+-  The Traffic Server HTTP state machine sends an event corresponding to
+   a particular HTTP hook
+
+-  A Traffic Server IO processor (such as a cache processor or net
+   processor) is letting a continuation know there is data (cache or
+   network) available to read or write. These callbacks are a result of
+   using functions such ``TSVConnRead``/``Write`` or
+   ``TSCacheRead``/``Write``
+
+
diff --git a/doc/sdk/continuations/writing-handler-functions.en.rst b/doc/sdk/continuations/writing-handler-functions.en.rst
new file mode 100644
index 00000000..c698857a
--- /dev/null
+++ b/doc/sdk/continuations/writing-handler-functions.en.rst
@@ -0,0 +1,125 @@
+Writing Handler Functions
+*************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. default-domain:: c
+
+The handler function is the key component of a continuation. It is
+supposed to examine the event and event data, and then do something
+appropriate. The probable action might be to schedule another event for
+the continuation to received, to open up a connection to a server, or
+simply to destroy itself.
+
+The continuation's handler function is a function of type
+:type:`TSEventFunc`. Its arguments are a continuation, an event, and a
+pointer to some data (this data is passed to the continuation by the
+caller - do not confuse this data with the continuation's own data,
+associated by :func:`TSContDataSet`). When the continuation is called back,
+the continuation and an event are passed to the handler function. The
+continuation is a handle to the same continuation that is invoked. The
+handler function typically has a switch statement to handle the events
+it receives:
+
+.. code-block:: c
+
+   static int some_handler (TScont contp, TSEvent event, void *edata)
+   {
+      // .....
+      switch(event) {
+         case TS_EVENT_SOME_EVENT_1:
+            do_some_thing_1;
+            return;
+         case TS_EVENT_SOME_EVENT_2:
+            do_some_thing_2;
+            return;
+         case TS_EVENT_SOME_EVENT_3:
+            do_some_thing_3;
+            return;
+         default: break;
+      }
+      return 0;
+   }
+
+.. caution::
+
+   You might notice that a continuation cannot determine if more events are
+   "in flight" toward it. Do not use :func:`TSContDestroy` to delete a
+   continuation before you make sure that all incoming events, such as
+   those sent because of :func:`TSHttpTxnHookAdd`, have been handled.
+
+The following table lists events and the corresponding type of
+`void* data` passed to handler functions:
+
+============================================ =========================================== ==========================
+Event                                        Event Sender                                Data Type
+============================================ =========================================== ==========================
+:data:`TS_EVENT_HTTP_READ_REQUEST_HDR`       :data:`TS_HTTP_READ_REQUEST_HDR_HOOK`       :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_OS_DNS`                 :data:`TS_HTTP_OS_DNS_HOOK`                 :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_SEND_REQUEST_HDR`       :data:`TS_HTTP_SEND_REQUEST_HDR_HOOK`       :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_READ_CACHE_HDR`         :data:`TS_HTTP_READ_CACHE_HDR_HOOK`         :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_READ_RESPONSE_HDR`      :data:`TS_HTTP_READ_RESPONSE_HDR_HOOK`      :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_SEND_RESPONSE_HDR`      :data:`TS_HTTP_SEND_RESPONSE_HDR_HOOK`      :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_SELECT_ALT`             :data:`TS_HTTP_SELECT_ALT_HOOK`             :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_TXN_START`              :data:`TS_HTTP_TXN_START_HOOK`              :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_TXN_CLOSE`              :data:`TS_HTTP_TXN_CLOSE_HOOK`              :type:`TSHttpTxn`
+:data:`TS_EVENT_HTTP_SSN_START`              :data:`TS_HTTP_SSN_START_HOOK`              :type:`TSHttpSsn`
+:data:`TS_EVENT_HTTP_SSN_CLOSE`              :data:`TS_HTTP_SSN_CLOSE_HOOK`              :type:`TSHttpSsn`
+:data:`TS_EVENT_NONE`
+:data:`TS_EVENT_CACHE_LOOKUP_COMPLETE`       :data:`TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK`  :type:`TSHttpTxn`
+:data:`TS_EVENT_IMMEDIATE`                   :func:`TSVConnClose`
+                                             :func:`TSVIOReenable`
+                                             :func:`TSContSchedule`
+:data:`TS_EVENT_IMMEDIATE`                   :data:`TS_HTTP_REQUEST_TRANSFORM_HOOK`
+:data:`TS_EVENT_IMMEDIATE`                   :data:`TS_HTTP_RESPONSE_TRANSFORM_HOOK`
+:data:`TS_EVENT_CACHE_OPEN_READ`             :func:`TSCacheRead`                         Cache VC
+:data:`TS_EVENT_CACHE_OPEN_READ_FAILED`      :func:`TSCacheRead`                         TS_CACHE_ERROR code
+:data:`TS_EVENT_CACHE_OPEN_WRITE`            :func:`TSCacheWrite`                        Cache VC
+:data:`TS_EVENT_CACHE_OPEN_WRITE_FAILED`     :func:`TSCacheWrite`                        TS_CACHE_ERROR code
+:data:`TS_EVENT_CACHE_REMOVE`                :func:`TSCacheRemove`
+:data:`TS_EVENT_CACHE_REMOVE_FAILED`         :func:`TSCacheRemove`                       TS_CACHE_ERROR code
+:data:`TS_EVENT_NET_ACCEPT`                  :func:`TSNetAccept`                         :type:`TSNetVConnection`
+                                             :func:`TSHttpTxnServerIntercept`
+                                             :func:`TSHttpTxnIntercept`
+:data:`TS_EVENT_NET_ACCEPT_FAILED`           :func:`TSNetAccept`
+                                             :func:`TSHttpTxnServerIntercept`
+                                             :func:`TSHttpTxnIntercept`
+:data:`TS_EVENT_HOST_LOOKUP`                 :func:`TSHostLookup`                        :type:`TSHostLookupResult`
+:data:`TS_EVENT_TIMEOUT`                     :func:`TSContSchedule`
+:data:`TS_EVENT_ERROR`
+:data:`TS_EVENT_VCONN_READ_READY`            :func:`TSVConnRead`                         :type:`TSVIO`
+:data:`TS_EVENT_VCONN_WRITE_READY`           :func:`TSVConnWrite`                        :type:`TSVIO`
+:data:`TS_EVENT_VCONN_READ_COMPLETE`         :func:`TSVConnRead`                         :type:`TSVIO`
+:data:`TS_EVENT_VCONN_WRITE_COMPLETE`        :func:`TSVConnWrite`                        :type:`TSVIO`
+:data:`TS_EVENT_VCONN_EOS`                   :func:`TSVConnRead`                         :type:`TSVIO`
+:data:`TS_EVENT_NET_CONNECT`                 :func:`TSNetConnect`                        :type:`TSVConn`
+:data:`TS_EVENT_NET_CONNECT_FAILED`          :func:`TSNetConnect`                        :type:`TSVConn`
+:data:`TS_EVENT_HTTP_CONTINUE`
+:data:`TS_EVENT_HTTP_ERROR`
+:data:`TS_EVENT_MGMT_UPDATE`                 :func:`TSMgmtUpdateRegister`
+============================================ =========================================== ==========================
+
+The continuation functions are listed below:
+
+-  :func:`TSContCall`
+-  :func:`TSContCreate`
+-  :func:`TSContDataGet`
+-  :func:`TSContDataSet`
+-  :func:`TSContDestroy`
+-  :func:`TSContMutexGet`
+-  :func:`TSContSchedule`
diff --git a/doc/sdk/getting-started.en.rst b/doc/sdk/getting-started.en.rst
new file mode 100644
index 00000000..38c14bb2
--- /dev/null
+++ b/doc/sdk/getting-started.en.rst
@@ -0,0 +1,244 @@
+.. _sdk-getting-started:
+
+Getting Started
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+    http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   getting-started/a-simple-plugin.en
+   getting-started/plugin-registration-and-version-checking.en
+   getting-started/naming-conventions.en
+
+The Traffic Server API enables you to create plugins, using the C
+programming language, that customize the behavior of your Traffic Server
+installation. This chapter contains the following sections:
+
+-  `Understanding Traffic Server Plugins`_ -- a brief introduction to plugins.
+   For more details, see :doc:`how-to-create-trafficserver-plugins.en`
+
+-  :doc:`getting-started/a-simple-plugin.en` -- walks through compiling and
+   loading an example ``hello world`` plugin.
+
+-  :doc:`getting-started/plugin-registration-and-version-checking.en` -- shows
+   you how to register your plugin and make sure it's compatible with the
+   version of Traffic Server you're using.
+
+-  :doc:`getting-started/naming-conventions.en` -- outlines Traffic
+   Server API naming conventions. For guidelines on creating plugin
+   source code, see :doc:`how-to-create-trafficserver-plugins.en`
+
+Understanding Traffic Server Plugins
+------------------------------------
+
+Traffic Server enables sophisticated caching and processing of
+web-related traffic, such as DNS and HTTP requests and responses.
+
+Traffic Server itself consists of an event-driven loop that can be
+simplified as follows:
+
+.. code-block:: c
+
+   for (;;) {
+      event = get_next_event();
+      handle_event (event);
+   }
+
+The Role of Plugins
+~~~~~~~~~~~~~~~~~~~
+
+You compile your plugin source code to create a shared library that
+Traffic Server loads when it is started. Your plugin contains callback
+functions that are registered for specific Traffic Server events. When
+Traffic Server needs to process an event, it invokes any and all
+call-back functions you've registered for that event type.
+
+.. caution::
+
+   Since plugins add object code to Traffic Server, programming errors in a
+   plugin can have serious implications. Bugs in your plugin, such as an
+   out-of-range pointer, can cause Traffic Server processes to crash and
+   may ultimately result in unpredictable behavior.
+
+**Plugin Process**
+
+.. _PluginProcess:
+
+.. figure:: /static/images/sdk/plugin_process.jpg
+   :align: center
+   :alt: Plugin Process
+
+   Plugin Process
+   
+Possible Uses for Plugins
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Possible uses for plugins include the following:
+
+-  HTTP processing: plugins can filter, blacklist, authorize users,
+   transform content
+
+-  Protocol support: plugins can enable Traffic Server to proxy-cache
+   new protocol content
+
+Some examples of plugins include:
+
+-  **Blacklisting plugin**: denies attempts to access web sites that are
+   off-limits.
+
+-  **Append transform plugin**: adds text to HTTP response content.
+
+-  **Image conversion plugin**: transforms JPEG images to GIF images.
+
+-  **Compression plugin**: sends response content to a compression
+   server that compresses the data (alternatively, a compression library
+   local to the Traffic Server host machine could do the compression).
+
+-  **Authorization plugin**: checks a user's permissions to access
+   particular web sites. The plugin could consult a local authorization
+   program or send queries to an authorization server.
+
+-  **A plugin that gathers client information** from request headers and
+   enters this information in a database.
+
+-  **Protocol plugin**: listens for specific protocol requests on a
+   designated port and then uses Traffic Server's proxy server & cache
+   to serve client requests.
+
+The figure below, :ref:`possibleTSplugins`, illustrates several types of plugins.
+
+**Possible Traffic Server Plugins**
+
+.. _possibleTSplugins:
+
+.. figure:: /static/images/sdk/Uses.jpg
+   :align: center
+   :alt: Possible Traffic Server Plugins
+
+   Possible Traffic Server Plugins
+   
+You can find basic examples for many plugins in the SDK sample code:
+
+-  ``append-transform.c`` adds text from a specified file to HTTP/text
+   responses. This plugin is explained in
+   :doc:`http-transformation-plugin/append-transform-plugin.en`
+
+-  The compression plugin in the figure communicates with the server
+   that actually does the compression. The ``server-transform.c`` plugin
+   shows how to open a connection to a transformation server, have the
+   server do the transformation, and send transformed data back to the
+   client. Although the transformation is null in
+   ``server-transform.c``, a compression or image translation plugin
+   could be implemented in a similar way.
+
+-  ``basic-auth.c`` performs basic HTTP proxy authorization.
+
+-  ``blacklist-1.c`` reads blacklisted servers from a configuration file
+   and denies client access to these servers. This plugin is explained
+   in :doc:`header-based-plugin-examples/blacklist-plugin.en`.
+
+Plugin Loading
+~~~~~~~~~~~~~~
+
+When Traffic Server is first started, it consults the ``plugin.config``
+file to determine the names of all shared plugin libraries that need to
+be loaded. The ``plugin.config`` file also defines arguments that are to
+be passed to each plugin's initialization function, ``TSPluginInit``.
+The :file:`records.config` file defines the path to each plugin shared
+library, as described in :ref:`specify-the-plugins-location`.
+
+.. note:: The path for each of these files is *<root_dir>*\ ``/config/``, where *<root_dir>* is where you installed Traffic Server.
+
+Plugin Configuration
+~~~~~~~~~~~~~~~~~~~~
+
+The sample ``plugin.config`` file below contains a comment line, a blank
+line, and two plugin configurations:
+
+::
+
+    # This is a comment line.
+
+    my-plugin.so junk.example.com trash.example.org garbage.example.edu
+    some-plugin.so arg1 arg2 $proxy.config.http.cache.on
+
+Each plugin configuration in the ``plugin.config`` file resembles a UNIX
+or DOS shell command; each line in ``plugin.config`` cannot exceed 1023
+characters.
+
+The first plugin configuration is for a plugin named ``my-plugin.so``.
+It contains three arguments that are to be passed to that plugin's
+initialization routine. The second configuration is for a plugin named
+``some-plugin.so``; it contains three arguments. The last argument,
+*``$proxy.config.http.cache.on``*, is actually a configuration variable.
+Traffic Server will look up the specified configuration variable and
+substitute its value.
+
+Plugins with global variables should not appear more than once in
+``plugin.config``. For example, if you enter:
+
+::
+
+    add-header.so header1
+    add-header.so header2
+
+then the second global variable, ``header2``, will be used for both
+instances. A simple workaround is to give different names to different
+instances of the same plugin. For example:
+
+::
+
+    cp add-header.so add-header1.so
+    cp add-header.so add-header2.so
+
+These entries will produce the desired result below:
+
+::
+
+    add-header1.so header1
+    add-header2.so header2
+
+Configuration File Rules
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+-  Comment lines begin with **#** and continue to the end of the line.
+
+-  Blank lines are ignored.
+
+-  Plugins are loaded and initialized by Traffic Server in the order
+   they appear in the ``plugin.config`` file.
+
+Plugin Initialization
+~~~~~~~~~~~~~~~~~~~~~
+
+Each plugin must define an initialization function named
+``TSPluginInit`` that Traffic Server invokes when the plugin is loaded.
+The ``TSPluginInit`` function is commonly used to read configuration
+information and register hooks for event notification.
+
+The ``TSPluginInit`` function has two arguments:
+
+-  The ``argc`` argument represents the number of arguments defined in
+   the ``plugin.config`` file for that particular plugin
+
+-  The ``argv`` argument is an array of pointers to the actual arguments
+   defined in the ``plugin.config`` file for that plugin
+
+See :c:func:`TSPluginInit` for details about ``TSPluginInit``.
diff --git a/doc/sdk/getting-started/a-simple-plugin.en.rst b/doc/sdk/getting-started/a-simple-plugin.en.rst
new file mode 100644
index 00000000..86853480
--- /dev/null
+++ b/doc/sdk/getting-started/a-simple-plugin.en.rst
@@ -0,0 +1,122 @@
+A Simple Plugin
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This section describes how to write, compile, configure, and run a
+simple Traffic Server plugin. You'll follow the steps below:
+
+1. Make sure that your plugin source code contains an ``TSPluginInit``
+   initialization function.
+
+2. Compile your plugin source code, creating a shared library.
+
+3. Add an entry to your plugin's ``plugin.config`` file.
+
+4. Add the path to your plugin shared library into the
+   :file:`records.config` file.
+
+5. Restart Traffic Server.
+
+Compile Your Plugin
+~~~~~~~~~~~~~~~~~~~
+
+The process for compiling a shared library varies with the platform
+used, so the Traffic Server API provides the tsxs tool which you can use
+to create shared libraries on all the supported Traffic Server
+platforms.
+
+Example
+^^^^^^^
+
+Assuming the sample program is stored in the file ``hello-world.c``, you
+could use the following commands to build a shared library
+
+::
+
+    tsxs -o hello-world.so -c hello-world.c
+
+tsxs can be found in ``trafficserver-dev`` package.
+
+This shared library will be your plugin. In order to install it, run
+
+::
+
+    sudo tsxs -o hello-world.so -i
+
+or the equivalent to ``sudo`` on your platform.
+
+Update the ``plugin.config`` File
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Your next step is to tell Traffic Server about the plugin by adding the
+following line to the ``plugin.config`` file. Since our simple plugin
+does not require any arguments, the following ``plugin.config`` will
+work:
+
+::
+
+    # a simple plugin.config for hello-world
+    hello-world.so
+
+Traffic Server can accommodate multiple plugins. If several plugin
+functions are triggered by the same event, then Traffic Server invokes
+each plugin's function in the order each was defined in the
+``plugin.config`` file.
+
+.. _specify-the-plugins-location:
+
+Specify the Plugin's Location
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+All plugins must be located in the directory specified by the
+configuration variable ``proxy.config.plugin.plugin_dir``, which is
+located in the :file:`records.config` file. The directory can be specified
+as an absolute or relative path.
+
+If a relative path is used, then the starting directory will be the
+Traffic Server installation directory as specified in
+``/etc/traffic_server``. The default value is ``libexec/trafficserver``,
+but this can vary based on how the software was configured and built. It
+is common to use the default directory. Be sure to place the shared
+library ``hello-world.so`` inside the directory you've configured.
+
+Restart Traffic Server
+~~~~~~~~~~~~~~~~~~~~~~
+
+The last step is to start/restart Traffic Server. Shown below is the
+output displayed after you've created and loaded your ``hello-world``
+plugin.
+
+::
+
+    # ls libexec/trafficserver
+    hello-world.so*
+    # bin/traffic_server
+    [Mar 27 19:06:31.669] NOTE: updated diags config
+    [Mar 27 19:06:31.680] NOTE: loading plugin 'libexec/trafficserver/hello-world.so'
+    hello world
+    [Mar 27 19:06:32.046] NOTE: cache disabled (initializing)
+    [Mar 27 19:06:32.053] NOTE: cache enabled
+    [Mar 27 19:06:32.526] NOTE: Traffic Server running
+
+**Note:** in the example above, Traffic Server notes are directed to the
+console by specifying ``E`` for ``proxy.config.diags.output.note`` in
+:file:`records.config`. The second note shows Traffic Server attempting to
+load the ``hello-world`` plugin. The third line of Traffic Server output
+is from your plugin.
diff --git a/doc/sdk/getting-started/naming-conventions.en.rst b/doc/sdk/getting-started/naming-conventions.en.rst
new file mode 100644
index 00000000..45794a2b
--- /dev/null
+++ b/doc/sdk/getting-started/naming-conventions.en.rst
@@ -0,0 +1,51 @@
+Naming Conventions
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The Traffic Server API adheres to the following naming conventions:
+
+-  The ``TS`` prefix is used for all function and variable names defined
+   in the Traffic Server API. **Examples**:
+   ``TS_EVENT_NONE``,\ ``TSMutex``, and ``TSContCreate``
+
+-  Enumerated values are always written in all uppercase letters.
+   **Examples**: *``TS_EVENT_NONE``* and *``TS_VC_CLOSE_ABORT``*
+
+-  Constant values are all uppercase; enumerated values can be seen as a
+   subset of constants. **Examples**: ``TS_URL_SCHEME_FILE`` and
+   ``TS_MIME_FIELD_ACCEPT``
+
+-  The names of defined types are mixed-case. **Examples**:
+   *``TSHttpSsn``* and *``TSHttpTxn``*
+
+-  Function names are mixed-case. **Examples**: ``TSUrlCreate`` and
+   ``TSContDestroy``
+
+-  Function names use the following subject-verb naming style:
+   ``TS-<subject>-<verb>``, where ``<subject>`` goes from general to
+   specific. This makes it easier to determine what a function does by
+   reading its name. **For** **example**: the function to retrieve the
+   password field (the specific subject) from a URL (the general
+   subject) is ``TSUrlPasswordGet``.
+
+-  Common verbs like ``Create``, ``Destroy``, ``Get``, ``Set``,
+   ``Copy``, ``Find``, ``Retrieve``, ``Insert``, ``Remove``, and
+   ``Delete`` are used only when appropriate.
+
+
diff --git a/doc/sdk/getting-started/plugin-registration-and-version-checking.en.rst b/doc/sdk/getting-started/plugin-registration-and-version-checking.en.rst
new file mode 100644
index 00000000..22ad8930
--- /dev/null
+++ b/doc/sdk/getting-started/plugin-registration-and-version-checking.en.rst
@@ -0,0 +1,85 @@
+Plugin Registration and Version Checking
+****************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Make sure that the functions in your plugin are supported in your
+version of Traffic Server.
+
+Use the following interfaces:
+
+-  `TSPluginRegister <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#a6d7f514e70abaf097c4a3f1ba01f6df8>`_
+-  `TSTrafficServerVersionGet <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc.html#a3ef91e01612ffdce6dd040f836db08e8>`_
+
+The following version of ``hello-world`` registers the plugin and
+ensures it's running with a compatible version of Traffic Server.
+
+.. code-block:: c
+
+    #include <stdio.h>
+    #include <ts/ts.h>
+    int
+    check_ts_version()
+    {
+
+     const char *ts_version = TSTrafficServerVersionGet();
+     int result = 0;
+
+       if (ts_version) {
+        int major_ts_version = 0;
+        int minor_ts_version = 0;
+        int patch_ts_version = 0;
+
+       if (sscanf(ts_version, "%d.%d.%d", &major_ts_version,
+          &minor_ts_version, &patch_ts_version) != 3) {
+          return 0;
+      }
+
+      /* We need at least Traffic Server 2.0 */
+
+       if (major_ts_version >= 2) {
+          result = 1;
+       }
+       
+      }
+
+      return result;
+    }
+
+    void
+    TSPluginInit (int argc, const char *argv[])
+    {
+
+          TSPluginRegistrationInfo info;
+
+          info.plugin_name = "hello-world";
+          info.vendor_name = "MyCompany";
+          info.support_email = "ts-api-support@MyCompany.com";
+
+          if (!TSPluginRegister (TS_SDK_VERSION_2_0 , &info)) {
+             TSError ("Plugin registration failed. \n");
+          }
+
+          if (!check_ts_version()) {
+             TSError ("Plugin requires Traffic Server 2.0 or later\n");
+             return;
+          }
+
+          TSDebug ("debug-hello", "Hello World!\n");
+    }
+
diff --git a/doc/sdk/header-based-plugin-examples.en.rst b/doc/sdk/header-based-plugin-examples.en.rst
new file mode 100644
index 00000000..2b283003
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples.en.rst
@@ -0,0 +1,70 @@
+.. _header-based-plugin-examples:
+
+Header-Based Plugin Examples
+*****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   header-based-plugin-examples/blacklist-plugin.en
+   header-based-plugin-examples/basic-authorization-plugin.en
+
+Header-based plugins read or modify the headers of HTTP messages that
+Traffic Server sends and receives. Reading this chapter will help you to
+understand the following topics:
+
+-  Creating continuations for your plugins
+
+-  Adding global hooks
+
+-  Adding transaction hooks
+
+-  Working with HTTP header functions
+
+The two sample plugins discussed in this chapter are ``blacklist-1.c``
+and ``basic-auth.c``.
+
+Overview
+--------
+
+Header-based plugins take actions based on the contents of HTTP request
+or response headers. Examples include filtering (on the basis of
+requested URL, source IP address, or other request header), user
+authentication, or user redirection. Header-based plugins have the
+following common elements:
+
+-  The plugin has a static parent continuation that scans all Traffic
+   Server headers (either request headers, response headers, or both).
+
+-  The plugin has a global hook. This enables the plugin to check all
+   transactions to determine if the plugin needs to do something.
+
+-  The plugin gets a handle to the transaction being processed through
+   the global hook.
+
+-  If the plugin needs to do something to transactions in specific
+   cases, then it sets up a transaction hook for a particular event.
+
+-  The plugin obtains client header information and does something based
+   on that information.
+
+This chapter demonstrates how these components are implemented in SDK
+sample code.
+
diff --git a/doc/sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst
new file mode 100644
index 00000000..8caea523
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin.en.rst
@@ -0,0 +1,44 @@
+The Basic Authorization Plugin
+******************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The sample basic authorization plugin, ``basic-auth.c``, checks for
+basic HTTP proxy authorization. In HTTP basic proxy authorization,
+client user names and passwords are contained in the
+``Proxy-Authorization`` header. The password is encoded using base64
+encoding. The plugin checks all incoming requests for the authorization
+header, user name, and password. If the plugin does not find all of the
+these, then it reenables with an error (effectively stopping the
+transaction) and adds a transaction hook to the send response header
+event.
+
+Creating the Plugin's Parent Continuation and Global Hook
+=========================================================
+
+The parent continuation and global hook are created as follows:
+
+``TSHttpHookAdd (TS_HTTP_OS_DNS_HOOK, TSContCreate (auth_plugin, NULL));``
+
+.. toctree::
+   :maxdepth: 2
+
+   basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en
+   basic-authorization-plugin/working-with-http-headers.en
+   basic-authorization-plugin/setting-a-transaction-hook.en
+
diff --git a/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.rst b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.rst
new file mode 100644
index 00000000..8b7b883a
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/implementing-the-handler-and-getting-a-handle-to-the-transaction.en.rst
@@ -0,0 +1,44 @@
+Implementing the Handler and Getting a Handle to the Transaction
+****************************************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The handler function for the plugin's parent continuation is implemented
+as follows:
+
+.. code-block:: c
+
+    static int
+    auth_plugin (TSCont contp, TSEvent event, void *edata)
+    {
+
+         TSHttpTxn txnp = (TSHttpTxn) edata;
+         switch (event) {
+         case TS_EVENT_HTTP_OS_DNS:
+              handle_dns (txnp, contp);
+              return 0;
+         case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+              handle_response (txnp);
+              return 0;
+         default:
+              break;
+         }
+
+         return 0;
+    }
+
diff --git a/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst
new file mode 100644
index 00000000..1c877ff3
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/setting-a-transaction-hook.en.rst
@@ -0,0 +1,55 @@
+Setting a Transaction Hook
+**************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+If the request does not have the ``Proxy-Authorization`` field set to
+Basic authorization or a valid username/password, then the plugin sends
+the 407 Proxy authorization ``required`` status code back to the client.
+The client will then prompt the user for a username and password, and
+then resend the request.
+
+In the ``handle_dns`` routine, the following lines handle the
+authorization error case:
+
+.. code-block:: c
+
+    done:
+         TSHttpTxnHookAdd (txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+         TSHttpTxnReenable (txnp, TS_EVENT_HTTP_ERROR);
+
+If ``handle_dns`` does not find the ``Proxy-Authorization`` field set to
+Basic authorization or a valid username/password, then it adds a
+``SEND_RESPONSE_HDR_HOOK`` to the transaction being processed. This
+means that Traffic Server will call the plugin back when sending the
+client response. ``handle_dns`` reenables the transaction with
+``TS_EVENT_HTTP_ERROR``, which means that the plugin wants Traffic
+Server to terminate the transaction.
+
+When Traffic Server terminates the transaction, it sends the client an
+error message. Because of the ``SEND_RESPONSE_HDR_HOOK``, Traffic Server
+calls the plugin back. The ``auth-plugin`` routine calls
+``handle_response`` to send the client a ``407`` status code. When the
+client resends the request with the ``Proxy-Authorization`` field, a new
+transaction begins.
+
+``handle_dns`` calls ``base64_decode`` to decode the username and
+password; ``handle_dns`` also calls ``authorized`` to validate the
+username and password. In this plugin, sample NT code is provided for
+password validation. UNIX programmers can supply their own validation
+mechanism.
diff --git a/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.rst b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.rst
new file mode 100644
index 00000000..9e26fe63
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/basic-authorization-plugin/working-with-http-headers.en.rst
@@ -0,0 +1,96 @@
+Working With HTTP Headers
+*************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The plugin checks all client request headers for the Proxy-Authorization
+MIME field, which should contain the user name and password. The
+plugin's continuation handler, ``auth-plugin``, calls ``handle_dns`` to
+check the ``Proxy-Authorization`` field. The ``handle_dns`` routine uses
+``TSHttpTxnClientReqGet`` and ``TSMimeHdrFieldFind`` to obtain the
+``Proxy-Authorization`` field:
+
+.. code-block:: c
+
+    {
+        TSMBuffer bufp;
+        TSMLoc hdr_loc;
+        TSMLoc field_loc;
+        const char *val;
+        char *user, *password;
+
+        if (!TSHttpTxnClientReqGet (txnp, &bufp, &hdr_loc)) {
+            TSError ("couldn't retrieve client request header\n");
+            goto done;
+        }
+
+        field_loc = TSMimeHdrFieldFind (bufp, hdr_loc,
+                TS_MIME_FIELD_PROXY_AUTHORIZATION);
+
+If the ``Proxy-Authorization`` field is present, then the plugin checks
+that the authentication type is "Basic", and the user name and password
+are present and valid:
+
+.. code-block:: c
+
+    val = TSMimeHdrFieldValueStringGet (bufp, hdr_loc, field_loc, -1, &authval_length);
+    if (!val) {
+        TSError ("no value in Proxy-Authorization field\n");
+        TSHandleMLocRelease (bufp, hdr_loc, field_loc);
+        TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+        goto done;
+    }
+
+    if (strncmp (val, "Basic", 5) != 0) {
+        TSError ("no Basic auth type in Proxy-Authorization\n");
+        TSHandleMLocRelease (bufp, hdr_loc, field_loc);
+        TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+        goto done;
+    }
+
+    val += 5;
+    while ((*val == ' ') || (*val == '\t')) {
+        val += 1;
+    }
+
+    user = base64_decode (val);
+    password = strchr (user, ':');
+    if (!password) {
+        TSError ("no password in authorization information\n");
+        TSfree (user);
+        TSHandleMLocRelease (bufp, hdr_loc, field_loc);
+        TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+        goto done;
+    }
+    *password = '\0';
+    password += 1;
+
+    if (!authorized (user, password)) {
+        TSError ("%s:%s not authorized\n", user, password);
+        TSfree (user);
+        TSHandleMLocRelease (bufp, hdr_loc, field_loc);
+        TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+        goto done;
+    }
+
+    TSfree (user);
+    TSHandleMLocRelease (bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+    TSHttpTxnReenable (txnp, TS_EVENT_HTTP_CONTINUE);
+    return;
+
diff --git a/doc/sdk/header-based-plugin-examples/blacklist-plugin.en.rst b/doc/sdk/header-based-plugin-examples/blacklist-plugin.en.rst
new file mode 100644
index 00000000..85048e95
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/blacklist-plugin.en.rst
@@ -0,0 +1,106 @@
+The Blacklist Plugin
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+The sample blacklisting plugin included in the Traffic Server SDK is
+``blacklist-1.c``. This plugin checks every incoming HTTP client request
+against a list of blacklisted web sites. If the client requests a
+blacklisted site, then the plugin returns an ``Access forbidden``
+message to the client.
+
+The flow of HTTP processing with the blacklist plugin is illustrated in
+the figure titled :ref:`BlackListPlugin`.
+This example also contains a simple configuration management interface.
+It can read a list of blacklisted sites from a file (``blacklist.txt``)
+that can be updated by a Traffic Server administrator. When the
+configuration file is updated, Traffic Server sends an event to the
+plugin that wakes it up to do some work.
+
+Creating the Parent Continuation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You create the static parent continuation in the mandatory
+``TSPluginInit`` function. This parent continuation effectively **is**
+the plugin: the plugin executes only when this continuation receives an
+event from Traffic Server. Traffic Server passes the event as an
+argument to the continuation's handler function. When you create
+continuations, you must create and specify their handler functions.
+
+You can specify an optional mutex lock when you create continuations.
+The mutex lock protects data shared by asynchronous processes. Because
+Traffic Server has a multi-threaded design, race conditions can occur if
+several threads try to access the same continuation's data.
+
+Here is how the static parent continuation is created in
+``blacklist-1.c``:
+
+.. code-block:: c
+
+   void
+   TSPluginInit (int argc, const char *argv[])
+   {
+      // ...
+      TSCont contp;
+          
+      contp = TSContCreate (blacklist_plugin, NULL);
+      // ...
+   }
+
+The handler function for the plugin is ``blacklist_plugin``, and the
+mutex is null. The continuation handler function's job is to handle the
+events that are sent to it; accordingly, the ``blacklist_plugin``
+routine consists of a switch statement that covers each of the events
+that might be sent to it:
+
+.. code-block:: c
+
+   static int
+   blacklist_plugin (TSCont contp, TSEvent event, void *edata)
+   {
+      TSHttpTxn txnp = (TSHttpTxn) edata;
+      switch (event) {
+         case TS_EVENT_HTTP_OS_DNS:
+            handle_dns (txnp, contp);
+            return 0;
+         case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+            handle_response (txnp);
+            return 0;
+         default:
+            TSDebug ("blacklist_plugin", "This event was unexpected: %d\n", );
+            break;
+      }
+      return 0;
+   }
+
+When you write handler functions, you have to anticipate any events that
+might be sent to the handler by hooks or by other functions. In the
+Blacklist plugin, ``TS_EVENT_OS_DNS`` is sent because of the global hook
+established in ``TSPluginInit``, ``TS_EVENT_HTTP_SEND_RESPONSE_HDR`` is
+sent because the plugin contains a transaction hook
+(see :doc:`blacklist-plugin/setting-up-a-transaction-hook.en`).
+It is good practice to have a default case in your switch statements.
+
+.. toctree::
+   :maxdepth: 2
+
+   blacklist-plugin/setting-a-global-hook.en
+   blacklist-plugin/accessing-the-transaction-being-processed.en
+   blacklist-plugin/setting-up-a-transaction-hook.en
+   blacklist-plugin/working-with-http-header-functions.en
+
diff --git a/doc/sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst b/doc/sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst
new file mode 100644
index 00000000..75feed1a
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en.rst
@@ -0,0 +1,60 @@
+Accessing the Transaction Being Processed
+*****************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+A continuation's handler function is of type ``TSEventFunc``; the
+prototype is as follows:
+
+``static int function_name (TSCont contp, TSEvent event, void *edata)``
+
+In general, the return value of the handler function is not used. The
+continuation argument is the continuation being called back, the event
+is the event being sent to the continuation, and the data pointed to by
+``void *edata`` depends on the type of event. The data types for each
+event type are listed in `Writing Handler
+Functions <../../continuations/writing-handler-functions>`__
+
+The key here is that if the event is an HTTP transaction event, then the
+data passed to the continuation's handler is of type ``TSHttpTxn`` (a
+data type that represents HTTP transactions). Your plugin can then do
+things with the transaction. Here's how it looks in the code for the
+Blacklist plugin's handler:
+
+.. code-block:: c
+
+   static int
+   blacklist_plugin (TSCont contp, TSEvent event, void *edata)
+   {
+      TSHttpTxn txnp = (TSHttpTxn) edata;
+      switch (event) {
+         case TS_EVENT_HTTP_OS_DNS:
+            handle_dns (txnp, contp);
+            return 0;
+         case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+            handle_response (txnp);
+            return 0;
+         default:
+            break;
+      }
+      return 0;
+   }
+
+For example: when the origin server DNS lookup event is sent,
+``blacklist_plugin`` can call ``handle_dns``\ and pass ``txnp`` as an
+argument.
diff --git a/doc/sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst b/doc/sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst
new file mode 100644
index 00000000..749ada27
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/blacklist-plugin/setting-a-global-hook.en.rst
@@ -0,0 +1,36 @@
+Setting a Global Hook
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Global hooks are always added in ``TSPluginInit`` using
+``TSHttpHookAdd``. The two arguments of ``TSHttpHookAdd`` are the hook
+ID and the continuation to call when processing the event corresponding
+to the hook. In ``blacklist-1.c``, the global hook is added as follows:
+
+.. code-block:: c
+
+   TSHttpHookAdd (TS_HTTP_OS_DNS_HOOK, contp);
+
+Above, ``TS_HTTP_OS_DNS_HOOK`` is the ID for the origin server DNS
+lookup hook and ``contp`` is the parent continuation created earlier.
+
+This means that the Blacklist plugin is called at every origin server
+DNS lookup. When it is called, the handler functio ``blacklist_plugin``
+receives ``TS_EVENT_HTTP_OS_DNS`` and calls ``handle_dns`` to see if the
+request is forbidden.
diff --git a/doc/sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst b/doc/sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst
new file mode 100644
index 00000000..ed2070ee
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/blacklist-plugin/setting-up-a-transaction-hook.en.rst
@@ -0,0 +1,80 @@
+Setting Up a Transaction Hook
+*****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+The Blacklist plugin sends "access forbidden" messages to clients if
+their requests are directed to blacklisted hosts. Therefore, the plugin
+needs a transaction hook so it will be called back when Traffic Server's
+HTTP state machine reaches the "send response header" event. In the
+Blacklist plugin's ``handle_dns`` routine, the transaction hook is added
+as follows:
+
+.. code-block:: c
+
+   TSMutexLock (sites_mutex);
+   for (i = 0; i < nsites; i++) {
+      if (strncmp (host, sites[i], host_length) == 0) {
+         printf ("blacklisting site: %s\n", sites[i]);
+         TSHttpTxnHookAdd (txnp,
+            TS_HTTP_SEND_RESPONSE_HDR_HOOK,
+            contp);
+         TSHandleMLocRelease (bufp, hdr_loc, url_loc);
+         TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+         TSHttpTxnReenable (txnp, TS_EVENT_HTTP_ERROR);
+         TSMutexUnlock (sites_mutex);
+         return;
+      }
+   }
+   TSMutexUnlock (sites_mutex);
+   done:
+   TSHttpTxnReenable (txnp, TS_EVENT_HTTP_CONTINUE);
+
+This code fragment shows some interesting features. The plugin is
+comparing the requested site to the list of blacklisted sites. While the
+plugin is using the blacklist, it must acquire the mutex lock for the
+blacklist to prevent configuration changes in the middle of a
+blacklisting operation. If the requested site is blacklisted, then the
+following things happen:
+
+1. A transaction hook is added with ``TSHttpTxnHookAdd``; the plugin is
+   called back at the "send response header" event (i.e., the plugin
+   sends an Access forbidden message to the client). You can see that in
+   order to add a transaction hook, you need a handle to the transaction
+   being processed.
+
+2. The transaction is reenabled using ``TSHttpTxnReenable`` with
+   ``TS_EVENT_HTTP_ERROR`` as its event argument. Reenabling with an
+   error event tells the HTTP state machine to stop the transaction and
+   jump to the "send response header" state. Notice that if the
+   requested site is not blacklisted, then the transaction is reenabled
+   with the ``TS_EVENT_HTTP_CONTINUE`` event.
+
+3. The string and ``TSMLoc`` data stored in the marshal buffer ``bufp``
+   is released by ``TSHandleMLocRelease`` (see `Release Marshal Buffer
+   Handles <RlsMarshalBufHandles.html>`__). Release these handles before
+   reenabling the transaction.
+
+In general, whenever the plugin is doing something to a transaction, it
+must reenable the transaction when it is finished. In other words: every
+time your handler function handles a transaction event, it must call
+``TSHttpTxnReenable`` when it is finished. Similarly, after your plugin
+handles session events (``TS_EVENT_HTTP_SSN_START`` and
+``TS_EVENT_HTTP_SSN_CLOSE``), it must reenable the session with
+``TSHttpSsnReenable``. Reenabling the transaction twice in the same
+plugin routine is a bad error.
diff --git a/doc/sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.rst b/doc/sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.rst
new file mode 100644
index 00000000..9f0fb4fd
--- /dev/null
+++ b/doc/sdk/header-based-plugin-examples/blacklist-plugin/working-with-http-header-functions.en.rst
@@ -0,0 +1,61 @@
+Working with HTTP Header Functions
+**********************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+The Blacklist plugin examines the host header in every client
+transaction. This is done in the ``handle_dns`` routine, using
+``TSHttpTxnClientReqGet``, ``TSHttpHdrUrlGet``, and ``TSUrlHostGet``.
+
+.. code-block:: c
+
+   static void
+   handle_dns (TSHttpTxn txnp, TSCont contp)
+   {
+   TSMBuffer bufp;
+   TSMLoc hdr_loc;
+   TSMLoc url_loc;
+   const char *host;
+   int i;
+   int host_length;
+ 
+   if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+      TSError("couldn't retrieve client request header\n");
+      goto done;
+   }
+ 
+   if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+      TSError("couldn't retrieve request url\n");
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+      goto done;
+   }
+ 
+   host = TSUrlHostGet(bufp, url_loc, &host_length);
+   if (!host) {
+      TSError("couldn't retrieve request hostname\n");
+      TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+      goto done;
+   }
+
+To access the host header, the plugin must first get the client request,
+retrieve the URL portion, and then obtain the host header. See `HTTP
+Headers <../../http-headers>`__ for more information about these calls.
+See `Release Marshal Buffer
+Handles <../../http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles>`__
+for guidelines on using ``TSHandleMLocRelease``.
diff --git a/doc/sdk/how-to-create-trafficserver-plugins.en.rst b/doc/sdk/how-to-create-trafficserver-plugins.en.rst
new file mode 100644
index 00000000..8868431e
--- /dev/null
+++ b/doc/sdk/how-to-create-trafficserver-plugins.en.rst
@@ -0,0 +1,241 @@
+.. _how-to-create-trafficserver-plugins:
+
+How to Create Traffic Server Plugins
+************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en
+
+This chapter provides a foundation for designing and writing plugins.
+Reading this chapter will help you to understand:
+
+-  The asynchronous event mode. This is the design paradigm used
+   throughout Traffic Server; plugins must also follow this design. It
+   includes the callback mechanism for Traffic Server to "wake up" your
+   plugin and put it to work.
+
+-  Traffic Server's HTTP processing, with an overview of the HTTP state
+   machine.
+
+-  How plugins can hook onto and modify/extend Traffic Server's HTTP
+   processing.
+
+-  A :doc:`roadmap for writing plugins <how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en>`,
+   with an overview of the functionality provided by the Traffic Server
+   API.
+
+The Asynchronous Event Model
+----------------------------
+
+Traffic Server is a multi-threaded process. There are two main reasons
+why a server might use multiple threads:
+
+-  To take advantage of the concurrency available with multiple CPUs and
+   multiple I/O devices.
+
+-  To manage concurrency from having many simultaneous client
+   connections. For example, a server could create one thread for each
+   connection, allowing the operating system (OS) to control switching
+   between threads.
+
+Traffic Server uses multiple threads for the first reason. However,
+Traffic Server does not use a separate OS thread per transaction because
+it would not be efficient when handling thousands of simultaneous
+connections.
+
+Instead, Traffic Server provides special event-driven mechanisms for
+efficiently scheduling work: the event system and continuations. The
+**event system** is used to schedule work to be done on threads. A
+**continuation** is a passive, event-driven state machine that can do
+some work until it reaches a waiting point; it then sleeps until it
+receives notification that conditions are right for doing more work. For
+example, HTTP state machines (which handle HTTP transactions) are
+implemented as continuations.
+
+Continuation objects are used throughout Traffic Server. Some might live
+for the duration of the Traffic Server process, while others are created
+(perhaps by other continuations) for specific needs and then destroyed.
+:ref:`TSInternals` (below) shows how the major
+components of Traffic Server interact. Traffic Server has several
+**processors**, such as *cache processor* and *net processor*, that
+consolidate cache or network I/O tasks. Processors talk to the event
+system and schedule work on threads. An executing thread calls back a
+continuation by sending it an event. When a continuation receives an
+event, it wakes up, does some work, and either destroys itself or goes
+back to sleep & waits for the next event.
+
+**Traffic Server Internals**
+
+.. _TSInternals:
+
+.. figure:: /static/images/sdk/event_sys80.jpg
+   :alt: Traffic Server Internals
+
+   Traffic Server Internals
+   
+Plugins are typically implemented as continuations. All of the sample
+code plugins (except ``hello-world``) are continuations that are created
+when Traffic Server starts up; they then wait for events that trigger
+them into activity.
+
+**Traffic Server with Plugins**
+
+.. _TSwithPlugins:
+
+.. figure:: /static/images/sdk/evt_plugin120.jpg
+   :alt: Traffic Server with Plugins
+
+   Traffic Server with Plugins
+   
+A plugin may consist of just one static continuation that is called
+whenever certain events happen. Examples of such plugins include
+``blacklist-1.c``, ``basic-auth.c``, and ``redirect-1.c``.
+Alternatively, a plugin might dynamically create other continuations as
+needed. Transform plugins are built in this manner: a static parent
+continuation checks all transactions to see if any are transformable;
+when a transaction is transformable, the static continuation creates a
+type of continuation called a **vconnection**. The vconnection lives as
+long as it takes to complete the transform and then destroys itself.
+This design can be seen in all of the sample transform plugins. Plugins
+that support new protocols also have this architecture: a static
+continuation listens for incoming client connections and then creates
+transaction state machines to handle each protocol transaction.
+
+When you write plugins, there are several ways to send events to
+continuations. For HTTP plugins, there is a "hook" mechanism that
+enables the Traffic Server HTTP state machine to send your plugin wakeup
+calls when needed. Additionally, several Traffic Server API functions
+trigger Traffic Server sub-processes to send events to plugins:
+``TSContCall``, ``TSVConnRead``, ``TSCacheWrite``, and
+``TSMgmtUpdateRegister``, to name a few.
+
+Traffic Server HTTP State Machine
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Traffic Server performs sophisticated HTTP caching and proxying.
+Important features include checking for alternates and document
+freshness, filtering, supporting cache hierarchies, and hosting. Traffic
+Server handles thousands of client requests at a time and each request
+is handled by an HTTP state machine. These machines follow a complex
+state diagram that includes all of the states required to support
+Traffic Server's features. The Traffic Server API provides hooks to a
+subset of these states, chosen for their relevance to plugins. You can
+view the API hooks and corresponding HTTP states in the
+:ref:`http-txn-state-diagram`.
+
+The example in this section (below) explains how a plugin typically
+intervenes and extends Traffic Server's processing of an HTTP
+transaction. Complete details about hooking on to Traffic Server
+processes are provided in :doc:`http-hooks-and-transactions.en`.
+
+HTTP Transaction
+^^^^^^^^^^^^^^^^
+
+An HTTP transaction consists of a client request for a web document and
+Traffic Server's response. The response could be the requested web
+server content or it could be an error message. The content could come
+from the Traffic Server cache or Traffic Server might fetch it from the
+origin server. The following diagram shows some states in a typical
+transaction - specifically, the scenario wherein content is served from
+cache.
+
+**Simplified HTTP Transaction**
+
+.. _SimplifiedHTTPTransaction:
+
+.. figure:: /static/images/sdk/transact75.jpg
+   :alt: Simplified HTTP Transaction
+
+   Simplified HTTP Transaction
+   
+In the diagram above, Traffic Server accepts the client connection,
+reads the request headers, looks up the origin server's IP address, and
+looks for the requested content in the cache. If the content is not in
+the cache (a "miss"), then Traffic Server opens a connection to the
+origin server and issues a request for the content. If the content is in
+the cache (a "hit"), then Traffic Server checks it for freshness.
+
+If the content is fresh, then Traffic Server sends a reply header to the
+client. If the content is stale, then Traffic Server opens a connection
+to the origin server and requests the content. The figure above,
+:ref:`SimplifiedHTTPTransaction`, does *not*
+show behavior in the event of an error. If there is an error at a any
+stage, then the HTTP state machine jumps to the "send reply header"
+state and sends a reply. If the reply is an error, then the transaction
+closes. If the reply is not an error, then Traffic Server first sends
+the response content before it closes the transaction.
+
+**API Hooks Corresponding to States**
+
+.. _APIHooksCorrespondingtoStates:
+
+.. figure:: /static/images/sdk/transact_hook75.jpg
+   :alt: API Hooks Corresponding to States Listed in
+
+   API Hooks Corresponding to States Listed in
+   
+You use hooks as triggers to start your plugin. The name of a hook
+reflects the Traffic Server state that was *just completed*. For
+example, the "OS DNS lookup" hook wakes up a plugin right *after* the
+origin server DNS lookup. For a plugin that requires the IP address of
+the requested origin server, this hook is the right one to use. The
+Blacklist plugin works in this manner, as shown in the :ref:`BlackListPlugin`
+diagram below.
+
+**Blacklist Plugin**
+
+.. _BlackListPlugin:
+
+.. figure:: /static/images/sdk/blacklist75.jpg
+   :alt: Blacklist Plugin
+
+   Blacklist Plugin
+   
+Traffic Server calls the Blacklist plugin right after the origin server
+DNS lookup. The plugin checks the requested host against a list of
+blacklisted servers; if the request is allowed, then the transaction
+proceeds. If the host is forbidden, then the Blacklist plugin sends the
+transaction into an error state. When the HTTP state machine gets to the
+"send reply header" state, it then calls the Blacklist plugin to provide
+the error message that's sent to the client.
+
+Types of Hooks
+^^^^^^^^^^^^^^
+
+The Blacklist plugin's hook to the "origin server DNS lookup" state is a
+****global hook****, meaning that the plugin is called *every time*
+there's an HTTP transaction with a DNS lookup event. The plugin's hook
+to the "send reply header" state is a ****transaction hook****,
+meaning that this hook is only invoked for *specified transactions* (in
+the Blacklist example, it's only used for requests to blacklisted
+servers). Several examples of setting up hooks are provided in the code
+example chapters: :doc:`header-based-plugin-examples.en` and
+:doc:`http-transformation-plugin.en`
+
+**Header manipulation plugins**, such as filtering, basic authorization,
+or redirects, usually have a global hook to the DNS lookup or the read
+request header states. If specific actions need to be done to the
+transaction further on, then the plugin adds itself to a transaction
+hook. **Transformation plugins** require a \*\*global hook \*\*to check
+all transactions for transformability followed by a **transform hook**,
+which is a type of transaction hook used specifically for transforms.
+
diff --git a/doc/sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst b/doc/sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst
new file mode 100644
index 00000000..7634bfe3
--- /dev/null
+++ b/doc/sdk/how-to-create-trafficserver-plugins/roadmap-for-creating-plugins.en.rst
@@ -0,0 +1,86 @@
+Roadmap for Creating Plugins
+****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+    http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+This chapter has provided an overview of Traffic Server's HTTP
+processing, API hooks, and the asynchronous event model. Next, you must
+understand the capabilities of Traffic Server API functions. These are
+quite broad:
+
+-  **HTTP header manipulation functions**
+
+   Obtain information about and manipulate HTTP headers, URLs, & MIME
+   headers.
+
+-  **HTTP transaction functions**
+
+   Get information about and modify HTTP transactions (for example: get
+   the client IP associated to the transaction; get the server IP; get
+   parent proxy information)
+
+-  **IO functions**
+
+   Manipulate vconnections (virtual connections, used for network and
+   disk I/O)
+
+-  **Network connection functions**
+
+   Open connections to remote servers.
+
+-  **Statistics functions**
+
+   Define and compute statistics for your plugin's activity.
+
+-  **Traffic Server management functions**
+
+   Obtain values for Traffic Server configuration and statistics
+   variables.
+
+Below are some guidelines for creating a plugin:
+
+1. Decide what you want your plugin to do, based on the capabilities of
+   the API and Traffic Server. Two main kinds of example plugins
+   provided with this SDK are HTTP-based (includes header-based and
+   response transform plugins), and non-HTTP-based (a protocol plugin).
+   These examples are discussed in the next three chapters.
+
+2. Determine where your plugin needs to hook on to Traffic Server's HTTP
+   processing (view the :ref:`http-txn-state-diagram`
+
+3. Read :doc:`../header-based-plugin-examples.en` to learn the basics of
+   writing plugins: creating continuations and setting up hooks. If you
+   want to write a plugin that transforms data, then read
+   :doc:`../http-transformation-plugin.en`
+
+4. Figure out what parts of the Traffic Server API you need to use and
+   then read about the details of those APIs in this manual's reference
+   chapters.
+
+5. Compile and load your plugin (see :doc:`../getting-started.en`
+
+6. Depending on your plugin's functionality, you might start testing it
+   by issuing requests by hand and checking for the desired behavior in
+   Traffic Server log files. See the ***Traffic Server Administrator's
+   Guide*** for information about Traffic Server logs.
+
+7. You can test the performance of Traffic Server running with your
+   plugin using SDKTest. You can also customize SDKTest to perform
+   functional testing on your plugin; for more information see the
+   ***Traffic Server SDKTest User's Guide***.
+
diff --git a/doc/sdk/http-headers.en.rst b/doc/sdk/http-headers.en.rst
new file mode 100644
index 00000000..167a1d50
--- /dev/null
+++ b/doc/sdk/http-headers.en.rst
@@ -0,0 +1,140 @@
+HTTP Headers
+************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+This chapter explains the functions used to manipulate HTTP headers.
+
+.. toctree::
+   :maxdepth: 2
+
+   http-headers/guide-to-trafficserver-http-header-system.en
+   http-headers/marshal-buffers.en
+   http-headers/http-headers.en
+   http-headers/urls.en
+   http-headers/mime-headers.en
+
+About HTTP Headers
+------------------
+
+An **HTTP message** consists of the following:
+
+-  HTTP header
+-  body
+-  trailer
+
+The **HTTP header** consists of:
+
+-  A request or response line
+
+   -  An HTTP **request line** contains a method, URL, and version
+   -  A **response line** contains a version, status code, and reason
+      phrase
+
+-  A MIME header
+
+A **MIME header** is comprised of zero or more MIME fields. A **MIME
+field** is composed of a field name, a colon, and (zero or more) field
+values. The values in a field are separated by commas. An HTTP header
+containing a request line is usually referred to as a **request**. The
+following example shows a typical request header:
+
+.. code-block:: http
+
+   GET http://www.tiggerwigger.com/ HTTP/1.0
+   Proxy-Connection: Keep-Alive
+   User-Agent: Mozilla/5.0 [en] (X11; I; Linux 2.2.3 i686)
+   Host: www.tiggerwigger.com
+   Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*
+   Accept-Encoding: gzip
+   Accept-Language: en
+   Accept-Charset: iso-8859-1, *, utf-8
+
+The **response header** for the above request might look like the
+following:
+
+.. code-block:: http
+
+   HTTP/1.0 200 OK
+   Date: Fri, 13 Nov 2009 06:57:43 GMT
+   Content-Location: http://locutus.tiggerwigger.com/index.html
+   Etag: "07db14afa76be1:1074"
+   Last-Modified: Thu, 05 Nov 2009 20:01:38 GMT
+   Content-Length: 7931
+   Content-Type: text/html
+   Server: Microsoft-IIS/4.0
+   Age: 922
+   Proxy-Connection: close
+
+The following figure illustrates an HTTP message with an expanded HTTP
+header.
+
+**Figure 10.1. HTTP Request/Response and Header Structure**
+
+.. figure:: /static/images/sdk/http_header_struct.jpg
+   :alt: HTTP Request/Response and Header Structure
+
+   HTTP Request/Response and Header Structure
+   
+The figure below shows example HTTP request and response headers.
+
+**Figure 10.2. Examples of HTTP Request and Response Headers**
+
+.. figure:: /static/images/sdk/http_headers.jpg
+   :alt: Examples of HTTP Request and Response Headers
+
+   Examples of HTTP Request and Response Headers
+   
+The marshal buffer or ``TSMBuffer`` is a heap data structure that stores
+parsed URLs, MIME headers, and HTTP headers. You can allocate new
+objects out of marshal buffers and change the values within the marshal
+buffer. Whenever you manipulate an object, you must require the handle
+to the object (``TSMLoc``) and the marshal buffer containing the object
+(``TSMBuffer``).
+
+**Figure 10.3. Marshal Buffers and Header Locations**
+
+.. figure:: /static/images/sdk/marshall_buffers.jpg
+   :alt: Marshal Buffers and Header Locations
+
+   Marshal Buffers and Header Locations
+   
+The figure above shows the following:
+
+-  The marshal buffer containing the HTTP request, ``reqest_bufp``
+
+-  ``TSMLoc`` location pointer for the HTTP header (``http_hdr_loc``)
+
+-  ``TSMLoc`` location pointer for the request URL (``url_loc``)
+
+-  ``TSMLoc`` location pointers for the MIME header (``mime_hdr_loc``)
+
+-  ``TSMLoc`` location pointers for MIME fields (``fieldi_loc``)
+
+-  ``TSMLoc`` location pointer for the next duplicate MIME field
+   (``next_dup_loc``)
+
+The diagram also shows that an HTTP header contains pointers to the URL
+location and the MIME header location. You can obtain the URL location
+from an HTTP header using the function ``TSHttpHdrUrlGet``. To work with
+MIME headers, you can pass either a MIME header location or an HTTP
+header location to MIME header functions . If you pass an HTTP header to
+a MIME header function, then the system locates the associated MIME
+header and executes the MIME header function on the MIME header
+location.
+
diff --git a/doc/sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst
new file mode 100644
index 00000000..01aaad03
--- /dev/null
+++ b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system.en.rst
@@ -0,0 +1,58 @@
+Guide to Traffic Server HTTP Header System
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+
+No Null-Terminated Strings
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+It's not safe to assume that string data contained in marshal buffers
+(such as URLs and MIME fields) is stored in null-terminated string
+copies. Therefore, your plugins should always use the length parameter
+when retrieving or manipulating these strings. You **cannot** pass in
+``NULL`` for string-length return values; string values returned from
+marshall buffers are not null-terminated. If you need a null-terminated
+value, then use ``TSstrndup`` to automatically null-terminate a string.
+The strings that come back and are not null-terminated **cannot** be
+passed into the common ``str*()`` routines
+
+.. note::
+   Values returned from a marshall buffer can be ``NULL``, which means the
+   field or object requested does not exist.
+
+For example (from the ``blacklist-1`` sample)
+
+.. code-block:: c
+
+   char *host_string;
+   int host_length;
+   host_string = TSUrlHostGet (bufp, url_loc, &host_length);
+   for (i = 0; i < nsites; i++) {
+   if (strncmp (host_string, sites[i], host_length) == 0) {
+      // ...
+   }
+
+See the sample plugins for additional examples.
+
+.. toctree::
+   :maxdepth: 2
+
+   guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en
+   guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en
+   guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en
+
diff --git a/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.rst b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.rst
new file mode 100644
index 00000000..f3549561
--- /dev/null
+++ b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en.rst
@@ -0,0 +1,31 @@
+Duplicate MIME Fields Are Not Coalesced
+***************************************
+
+..
+   Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+   
+   http://www.apache.org/licenses/LICENSE-2.0
+   
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+MIME headers can contain more than one MIME field with the same name.
+Earlier versions of Traffic Server joined multiple fields with the same
+name into one field with composite values. This behavior came at a
+performance cost and caused interoperability problems with older clients
+and servers. Therefore, this version of Traffic Server does not coalesce
+duplicate fields.
+
+Properly-behaving plugins should check for the presence of duplicate
+fields and then iterate over the duplicate fields via
+:c:func:`TSMimeHdrFieldNextDup`.
diff --git a/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst
new file mode 100644
index 00000000..46031815
--- /dev/null
+++ b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en.rst
@@ -0,0 +1,67 @@
+MIME Fields Always Belong to an Associated MIME Header
+******************************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+When using Traffic Server, you cannot create a new MIME field without an
+associated MIME header or HTTP header; MIME fields are always seen as
+part of a MIME header or HTTP header.
+
+To use a MIME field, you must specify the MIME header or HTTP header to
+which it belongs - this is called the field's **parent header**. The
+``TSMimeField*`` functions in older versions of the SDK have been
+deprecated, as they do not require the parent header as inputs. The
+current version of Traffic Server uses new functions, the
+**``TSMimeHdrField``** series, which require you to specify the location
+of the parent header along with the location of the MIME field. For
+every deprecated *``TSMimeField``* function, there is a new, preferred
+``TSMimeHdrField*`` function. Therefore, you should use the
+**``TSMimeHdrField``** functions instead of the deprecated
+*``TSMimeField``* series. Examples are provided below.
+
+Instead of:
+
+.. code-block:: c
+
+    TSMLoc TSMimeFieldCreate (TSMBuffer bufp)
+
+You should use:
+
+.. code-block:: c
+
+    TSMLoc TSMimeHdrFieldCreate (TSMBuffer bufp, TSMLoc hdr)
+
+Instead of:
+
+.. code-block:: c
+
+    void TSMimeFieldCopyValues (TSMBuffer dest_bufp, TSMLoc dest_offset,
+       TSMBuffer src_bufp, TSMLoc src_offset)
+
+You should use:
+
+.. code-block:: c
+
+    void TSMimeHdrFieldCopyValues (TSMBuffer dest_bufp, TSMLoc dest_hdr,
+       TSMLoc dest_field, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc
+       src_field)
+
+In the ``TSMimeHdrField*`` function prototypes, the ``TSMLoc`` field
+corresponds to the ``TSMLoc`` offset used the deprecated
+``TSMimeField*`` functions (see the discussion of parent ``TSMLoc`` in
+the following section).
diff --git a/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst
new file mode 100644
index 00000000..26089e83
--- /dev/null
+++ b/doc/sdk/http-headers/guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en.rst
@@ -0,0 +1,79 @@
+Release Marshal Buffer Handles
+******************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+When you fetch a component object or create a new object, you get back a
+handle to the object location. The handle is either an ``TSMLoc`` for an
+object location or ``char *`` for a string location. You can manipulate
+the object through these handles, but when you are finished you need to
+release the handle to free up system resources.
+
+The general guideline is to release all ``TSMLoc`` and string handles
+you retrieve. The one exception is the string returned by
+``TSUrlStringGet``, which must be freed by a call to ``TSfree``.
+
+The handle release functions expect three arguments: the marshal buffer
+containing the data, the location of the parent object, and the location
+of the object to be released. The parent location is usually clear from
+the creation of the ``TSMLoc`` or string. For example, if your plugin
+had the following calls:
+
+.. code-block:: c
+
+   url_loc = TSHttpHdrUrlGet (bufp, hdr_loc);
+   host_string = TSUrlHostGet (bufp, url_loc, &host_length);
+
+then your plugin would have to call:
+
+.. code-block:: c
+
+   TSHandleMLocRelease (bufp, hdr_loc, url_loc);
+
+If an ``TSMLoc`` is obtained from a transaction, then it does not have a
+parent ``TSMLoc``. Use the null ``TSMLoc`` constant ``TS_NULL_MLOC`` as
+its parent. For example, if your plugin calls:
+
+.. code-block:: c
+
+   TSHttpTxnClientReqGet (txnp, &bufp, &hdr_loc);
+
+then you must release ``hdr_loc`` with:
+
+.. code-block:: c
+
+   TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+
+You need to use ``TS_NULL_MLOC`` to release any ``TSMLoc`` handles
+retrieved by the ``TSHttpTxn*Get`` functions.
+
+Here's an example using a new ``TSMimeHdrField`` function:
+
+.. code-block:: c
+
+   TSHttpTxnServerRespGet( txnp, &resp_bufp, &resp_hdr_loc );
+   new_field_loc = TSMimeHdrFieldCreate (resp_bufp, resp_hdr_loc);
+   TSHandleMLocRelease ( resp_bufp, resp_hdr_loc, new_field_loc);
+   TSHandleMLocRelease ( resp_bufp, TS_NULL_MLOC, resp_hdr_loc);
+
+See the sample plugins for many more examples.
+
+.. tip::
+
+   You should release handles before reenabling the HTTP transaction.
+   In other words, call ``TSHandleMLocRelease`` before ``TSHttpTxnReenable``.
diff --git a/doc/sdk/http-headers/http-headers.en.rst b/doc/sdk/http-headers/http-headers.en.rst
new file mode 100644
index 00000000..623bd7f8
--- /dev/null
+++ b/doc/sdk/http-headers/http-headers.en.rst
@@ -0,0 +1,186 @@
+HTTP Headers
+************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+  
+.. toctree::
+
+   marshal-buffers.en
+   mime-headers.en
+   urls.en
+   guide-to-trafficserver-http-header-system.en
+   guide-to-trafficserver-http-header-system/mime-fields-always-belong-to-an-associated-mime-header.en
+   guide-to-trafficserver-http-header-system/release-marshal-buffer-handles.en
+   guide-to-trafficserver-http-header-system/duplicate-mime-fields-are-not-coalesced.en
+  
+
+The Traffic Server API HTTP header functions enable you to work with
+HTTP header data stored in marshal buffers.
+
+The HTTP header data structure is a parsed version of the HTTP header
+defined in the HTTP protocol specification. An HTTP header is composed
+of a request or response line followed by zero or more MIME fields. In
+fact, an HTTP header is a subclass of a MIME header; all of the MIME
+header routines operate on HTTP headers.
+
+An HTTP **request line** is composed of a method, a URL, and version. A
+**response line** is composed of a version, status code, and reason
+phrase. See `About HTTP Headers <../http-headers#AboutHTTPHeaders>`__
+for additional details and examples.
+
+To facilitate fast comparisons and reduce storage size, Traffic Server
+defines several pre-allocated method names. These names correspond to
+the methods defined in the HTTP 1.1 specification
+
+``TS_HTTP_METHOD_CONNECT``
+   "CONNECT"
+
+``TS_HTTP_METHOD_DELETE``
+   "DELETE"
+
+``TS_HTTP_METHOD_GE``
+   "GET"
+
+``TS_HTTP_METHOD_HEAD``
+   "HEAD"
+
+``TS_HTTP_METHOD_ICP_QUERY``
+   "ICP\_QUERY"
+
+``TS_HTTP_METHOD_OPTIONS``
+   "OPTIONS"
+
+``TS_HTTP_METHOD_POST``
+   "POST"
+
+``TS_HTTP_METHOD_PURGE``
+   "PURGE"
+
+``TS_HTTP_METHOD_PUT``
+   "PUT"
+
+``TS_HTTP_METHOD_TRACE``
+   "TRACE"
+
+``TS_HTTP_METHOD_PUSH``
+   "PUSH"
+
+Traffic Server also defines several common values that appear in HTTP
+headers.
+
+``TS_HTTP_VALUE_BYTES``
+   "bytes"
+
+``TS_HTTP_VALUE_CHUNKED``
+   "chunked"
+
+``TS_HTTP_VALUE_CLOSE``
+   "close"
+
+``TS_HTTP_VALUE_COMPRESS``
+   "compress"
+
+``TS_HTTP_VALUE_DEFLATE``
+   "deflate"
+
+``TS_HTTP_VALUE_GZIP``
+   "gzip"
+
+``TS_HTTP_VALUE_IDENTITY``
+   "identity"
+
+``TS_HTTP_VALUE_KEEP_ALIVE``
+   "keep-alive"
+
+``TS_HTTP_VALUE_MAX_AGE``
+   "max-age"
+
+``TS_HTTP_VALUE_MAX_STALE``
+   "max-stale"
+
+``TS_HTTP_VALUE_MIN_FRESH``
+   "min-fresh"
+
+``TS_HTTP_VALUE_MUST_REVALIDATE``
+   "must-revalidate"
+
+``TS_HTTP_VALUE_NONE``
+   "none"
+
+``TS_HTTP_VALUE_NO_CACHE``
+   "no-cache"
+
+``TS_HTTP_VALUE_NO_STORE``
+   "no-store"
+
+``TS_HTTP_VALUE_NO_TRANSFORM``
+   "no-transform"
+
+``TS_HTTP_VALUE_ONLY_IF_CACHED``
+   "only-if-cached"
+
+``TS_HTTP_VALUE_PRIVATE``
+   "private"
+
+``TS_HTTP_VALUE_PROXY_REVALIDATE``
+   "proxy-revalidate"
+
+``TS_HTTP_VALUE_PUBLIC``
+   "public"
+
+``TS_HTTP_VALUE_S_MAX_AGE``
+   "s-maxage"
+
+The method names and header values above are defined in ``ts.h`` as
+``const char*`` strings. When Traffic Server sets a method or a header
+value, it checks to make sure that the new value is one of the known
+values. If it is, then it stores a pointer into a global table (instead
+of storing the known value in the marshal buffer). The method names and
+header values listed above are also pointers into this table. This
+allows simple pointer comparison of the value returned from
+``TSHttpMethodGet`` with one of the values listed above. It is also
+recommended that you use the above values when referring to one of the
+known schemes, since this removes the possibility of a spelling error.
+
+The **HTTP Header Functions** are listed below:
+
+-  :c:func:`TSHttpHdrClone`
+-  :c:func:`TSHttpHdrCopy`
+-  :c:func:`TSHttpHdrCreate`
+-  :c:func:`TSHttpHdrDestroy`
+-  :c:func:`TSHttpHdrLengthGet`
+-  :c:func:`TSHttpHdrMethodGet`
+-  :c:func:`TSHttpHdrMethodSet`
+-  :c:func:`TSHttpHdrPrint`
+-  :c:func:`TSHttpHdrReasonGet`
+-  :c:func:`TSHttpHdrReasonLookup`
+-  :c:func:`TSHttpHdrReasonSet`
+-  :c:func:`TSHttpHdrStatusGet`
+-  :c:func:`TSHttpHdrStatusSet`
+-  :c:func:`TSHttpHdrTypeGet`
+-  :c:func:`TSHttpHdrTypeSet`
+-  :c:func:`TSHttpHdrUrlGet`
+-  :c:func:`TSHttpHdrUrlSet`
+-  :c:func:`TSHttpHdrVersionGet`
+-  :c:func:`TSHttpHdrVersionSet`
+-  :c:func:`TSHttpParserClear`
+-  :c:func:`TSHttpParserCreate`
+-  :c:func:`TSHttpParserDestroy`
+-  :c:func:`TSHttpHdrParseReq`
+-  :c:func:`TSHttpHdrParseResp`
+
diff --git a/doc/sdk/http-headers/marshal-buffers.en.rst b/doc/sdk/http-headers/marshal-buffers.en.rst
new file mode 100644
index 00000000..d3f0664a
--- /dev/null
+++ b/doc/sdk/http-headers/marshal-buffers.en.rst
@@ -0,0 +1,51 @@
+Marshal Buffers
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+A **marshal buffer**, or ``TSMBuffer``, is a heap data structure that
+stores parsed URLs, MIME headers, and HTTP headers. You can allocate new
+objects out of marshal buffers and change the values within a marshal
+buffer. Whenever you manipulate an object, you require the handle to the
+object (``TSMLoc``) and the marshal buffer containing the object
+(``TSMBuffer``).
+
+Routines exist for manipulating the object based on these two pieces of
+information. For example, see one of the following:
+
+-  :doc:`http-headers.en`
+-  :doc:`urls.en`
+-  :doc:`mime-headers.en`
+
+The **marshal buffer functions** enable you to create and destroy
+Traffic Server's marshal buffers, which are the data structures that
+hold parsed URLs, MIME headers, and HTTP headers.
+
+.. caution::
+   Any marshal buffer fetched by ``TSHttpTxn*Get`` will be used by other
+   parts of the system. Be careful not to destroy these shared transaction
+   marshal buffers in functions such as those below:
+
+-  `TSHttpTxnCachedReqGet <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc.html#a889b626142157077f4f3cfe479e8b8e2>`_
+-  `TSHttpTxnCachedRespGet <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc.html#ae8f24b8dabb5008ad11620a11682ffd6>`_
+-  `TSHttpTxnClientReqGet <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc.html#acca66f22d0f87bf8f08478ed926006a5>`_
+-  `TSHttpTxnClientRespGet <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc.html#a92349c8363f72b1f6dfed3ae80901fff>`_
+-  `TSHttpTxnServerReqGet <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#aac2343a8b47bf9150f3ff7cd4e692d57>`_
+-  `TSHttpTxnServerRespGet <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#a39e8bfb199eadabb54c067ff25a9a400>`_
+-  `TSHttpTxnTransformRespGet <http://people.apache.org/~amc/ats/doc/html/InkAPI_8cc.html#a20367f5469e8b7e73621c1316091d578>`_
+
diff --git a/doc/sdk/http-headers/mime-headers.en.rst b/doc/sdk/http-headers/mime-headers.en.rst
new file mode 100644
index 00000000..b0f0b6dd
--- /dev/null
+++ b/doc/sdk/http-headers/mime-headers.en.rst
@@ -0,0 +1,437 @@
+MIME Headers
+************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The Traffic Server \*\*MIME header functions \*\* enable you to retrieve
+and modify information about HTTP MIME fields.
+
+An HTTP request or response consists of a header, body, and trailer. The
+**HTTP** **header** contains a request (or response) line and a MIME
+header. A **MIME** **header** is composed of zero or more MIME fields. A
+**MIME** **field** is composed of a field name, a colon, and zero or
+more field values (values in a field are separated by commas).
+
+In the example below: ``Foo`` is the MIME field name, ``bar`` is the
+first MIME field value, and ``car`` is the second MIME field value.
+
+::
+
+      Foo: bar, car
+
+The following example is an augmented **Backus-Naur Form** (BNF) for the
+form of a MIME header - it specifies exactly what was described above. A
+**header** consists of zero or more **fields** that contain a name,
+separating colon, and zero or more values. A **name** or **value** is
+simply a string of tokens that is potentially zero length; a **token**
+is any character except certain control characters and separators (such
+as colons). For the purpose of retrieving a field, field names are not
+case-sensitive; therefore, the field names ``Foo``, ``foo`` and ``fOO``
+are all equivalent.
+
+::
+
+    MIME-header = *MIME-field
+    MIME-field = field-name ":" #field-value
+    field-name = *token
+    field-value = *token
+
+The MIME header data structure is a parsed version of a standard
+Internet MIME header. The MIME header data structure is similar to the
+URL data structure (see `URLs <urls>`__). The actual data is stored in a
+marshal buffer; the MIME header functions operate on a marshal buffer
+and a location (``TSMLoc``) within the buffer.
+
+After a call to ``TSMimeHdrFieldDestroy``, ``TSMimeHdrFieldRemove``, or
+``TSUrlDestroy`` is made, you must deallocate the ``TSMLoc`` handle with
+a call to ``TSHandleMLocRelease``. You do not need to deallocate a
+``NULL`` handles. For example: if you call
+``TSMimeHdrFieldValueStringGet`` to get the value of the content type
+field and the field does not exist, then it returns ``TS_NULL_MLOC``. In
+such a case, you wouldn't need to deallocate the handle with a call to
+``TSHandleMLocRelease``.
+
+The location (``TSMLoc``) in the :ref:`MIME header
+functions <MimeHeaderFxns>` can be either an HTTP header location or
+a MIME header location. If an HTTP header location is passed to these
+functions, then the system locates the MIME header associated with that
+HTTP header and executes the corresponding MIME header operations
+specified by the functions (see the example in the description of
+:c:func:`TSMimeHdrCopy`).
+
+**Note:** MIME headers may contain more than one MIME field with the
+same name. Previous versions of Traffic Server joined multiple fields
+with the same name into one field with composite values, but this
+behavior came at a performance cost and caused compatability issues with
+older clients and servers. Hence, the current version of Traffic Server
+does not coalesce duplicate fields. Correctly-behaving plugins should
+check for the presence of duplicate fields and iterate over the
+duplicate fields by using ``TSMimeHdrFieldNextDup``.
+
+To facilitate fast comparisons and reduce storage size, Traffic Server
+defines several pre-allocated field names. These field names correspond
+to the field names in HTTP and NNTP headers.
+
+``TS_MIME_FIELD_ACCEPT``
+    "Accept"
+    ``TS_MIME_LEN_ACCEPT``
+
+``TS_MIME_FIELD_ACCEPT_CHARSET``
+    "Accept-Charset"
+    ``TS_MIME_LEN_ACCEPT_CHARSET``
+
+``TS_MIME_FIELD_ACCEPT_ENCODING``
+    "Accept-Encoding"
+    ``TS_MIME_LEN_ACCEPT_ENCODING``
+
+``TS_MIME_FIELD_ACCEPT_LANGUAGE``
+    "Accept-Language"
+    ``TS_MIME_LEN_ACCEPT_LANGUAGE``
+
+``TS_MIME_FIELD_ACCEPT_RANGES``
+    "Accept-Ranges"
+    ``TS_MIME_LEN_ACCEPT_RANGES``
+
+``TS_MIME_FIELD_AGE``
+    "Age"
+    ``TS_MIME_LEN_AGE``
+
+``TS_MIME_FIELD_ALLOW``
+    "Allow"
+    ``TS_MIME_LEN_ALLOW``
+
+``TS_MIME_FIELD_APPROVED``
+    "Approved"
+    ``TS_MIME_LEN_APPROVED``
+
+``TS_MIME_FIELD_AUTHORIZATION``
+    "Authorization"
+    ``TS_MIME_LEN_AUTHORIZATION``
+
+``TS_MIME_FIELD_BYTES``
+    "Bytes"
+    ``TS_MIME_LEN_BYTES``
+
+``TS_MIME_FIELD_CACHE_CONTROL``
+    "Cache-Control"
+    ``TS_MIME_LEN_CACHE_CONTROL``
+
+``TS_MIME_FIELD_CLIENT_IP``
+    "Client-ip"
+    ``TS_MIME_LEN_CLIENT_IP``
+
+``TS_MIME_FIELD_CONNECTION``
+    "Connection"
+    ``TS_MIME_LEN_CONNECTION``
+
+``TS_MIME_FIELD_CONTENT_BASE``
+    "Content-Base"
+    ``TS_MIME_LEN_CONTENT_BASE``
+
+``TS_MIME_FIELD_CONTENT_ENCODING``
+    "Content-Encoding"
+    ``TS_MIME_LEN_CONTENT_ENCODING``
+
+``TS_MIME_FIELD_CONTENT_LANGUAGE``
+    "Content-Language"
+    ``TS_MIME_LEN_CONTENT_LANGUAGE``
+
+``TS_MIME_FIELD_CONTENT_LENGTH``
+    "Content-Length"
+    ``TS_MIME_LEN_CONTENT_LENGTH``
+
+``TS_MIME_FIELD_CONTENT_LOCATION``
+    "Content-Location"
+    ``TS_MIME_LEN_CONTENT_LOCATION``
+
+``TS_MIME_FIELD_CONTENT_MD5``
+    "Content-MD5"
+    ``TS_MIME_LEN_CONTENT_MD5``
+
+``TS_MIME_FIELD_CONTENT_RANGE``
+    "Content-Range"
+    ``TS_MIME_LEN_CONTENT_RANGE``
+
+``TS_MIME_FIELD_CONTENT_TYPE``
+    "Content-Type"
+    ``TS_MIME_LEN_CONTENT_TYPE``
+
+``TS_MIME_FIELD_CONTROL``
+    "Control"
+    ``TS_MIME_LEN_CONTROL``
+
+``TS_MIME_FIELD_COOKIE``
+    "Cookie"
+    ``TS_MIME_LEN_COOKIE``
+
+``TS_MIME_FIELD_DATE``
+    "Date"
+    ``TS_MIME_LEN_DATE``
+
+``TS_MIME_FIELD_DISTRIBUTION``
+    "Distribution"
+    ``TS_MIME_LEN_DISTRIBUTION``
+
+``TS_MIME_FIELD_ETAG``
+    "Etag"
+    ``TS_MIME_LEN_ETAG``
+
+``TS_MIME_FIELD_EXPECT``
+    "Expect"
+    ``TS_MIME_LEN_EXPECT``
+
+``TS_MIME_FIELD_EXPIRES``
+    "Expires"
+    ``TS_MIME_LEN_EXPIRES``
+
+``TS_MIME_FIELD_FOLLOWUP_TO``
+    "Followup-To"
+    ``TS_MIME_LEN_FOLLOWUP_TO``
+
+``TS_MIME_FIELD_FROM``
+    "From"
+    ``TS_MIME_LEN_FROM``
+
+``TS_MIME_FIELD_HOST``
+    "Host"
+    ``TS_MIME_LEN_HOST``
+
+``TS_MIME_FIELD_IF_MATCH``
+    "If-Match"
+    ``TS_MIME_LEN_IF_MATCH``
+
+``TS_MIME_FIELD_IF_MODIFIED_SINCE``
+    "If-Modified-Since"
+    ``TS_MIME_LEN_IF_MODIFIED_SINCE``
+
+``TS_MIME_FIELD_IF_NONE_MATCH``
+    "If-None-Match"
+    ``TS_MIME_LEN_IF_NONE_MATCH``
+
+``TS_MIME_FIELD_IF_RANGE``
+    "If-Range"
+    ``TS_MIME_LEN_IF_RANGE``
+
+``TS_MIME_FIELD_IF_UNMODIFIED_SINCE``
+    "If-Unmodified-Since"
+    ``TS_MIME_LEN_IF_UNMODIFIED_SINCE``
+
+``TS_MIME_FIELD_KEEP_ALIVE``
+    "Keep-Alive"
+    ``TS_MIME_LEN_KEEP_ALIVE``
+
+``TS_MIME_FIELD_KEYWORDS``
+    "Keywords"
+    ``TS_MIME_LEN_KEYWORDS``
+
+``TS_MIME_FIELD_LAST_MODIFIED``
+    "Last-Modified"
+    ``TS_MIME_LEN_LAST_MODIFIED``
+
+``TS_MIME_FIELD_LINES``
+    "Lines"
+    ``TS_MIME_LEN_LINES``
+
+``TS_MIME_FIELD_LOCATION``
+    "Location"
+    ``TS_MIME_LEN_LOCATION``
+
+``TS_MIME_FIELD_MAX_FORWARDS``
+    "Max-Forwards"
+    ``TS_MIME_LEN_MAX_FORWARDS``
+
+``TS_MIME_FIELD_MESSAGE_ID``
+    "Message-ID"
+    ``TS_MIME_LEN_MESSAGE_ID``
+
+``TS_MIME_FIELD_NEWSGROUPS``
+    "Newsgroups"
+    ``TS_MIME_LEN_NEWSGROUPS``
+
+``TS_MIME_FIELD_ORGANIZATION``
+    "Organization"
+    ``TS_MIME_LEN_ORGANIZATION``
+
+``TS_MIME_FIELD_PATH``
+    "Path"
+    ``TS_MIME_LEN_PATH``
+
+``TS_MIME_FIELD_PRAGMA``
+    "Pragma"
+    ``TS_MIME_LEN_PRAGMA``
+
+``TS_MIME_FIELD_PROXY_AUTHENTICATE``
+    "Proxy-Authenticate"
+    ``TS_MIME_LEN_PROXY_AUTHENTICATE``
+
+``TS_MIME_FIELD_PROXY_AUTHORIZATION``
+    "Proxy-Authorization"
+    ``TS_MIME_LEN_PROXY_AUTHORIZATION``
+
+``TS_MIME_FIELD_PROXY_CONNECTION``
+    "Proxy-Connection"
+    ``TS_MIME_LEN_PROXY_CONNECTION``
+
+``TS_MIME_FIELD_PUBLIC``
+    "Public"
+    ``TS_MIME_LEN_PUBLIC``
+
+``TS_MIME_FIELD_RANGE``
+    "Range"
+    ``TS_MIME_LEN_RANGE``
+
+``TS_MIME_FIELD_REFERENCES``
+    "References"
+    ``TS_MIME_LEN_REFERENCES``
+
+``TS_MIME_FIELD_REFERER``
+    "Referer"
+    ``TS_MIME_LEN_REFERER``
+
+``TS_MIME_FIELD_REPLY_TO``
+    "Reply-To"
+    ``TS_MIME_LEN_REPLY_TO``
+
+``TS_MIME_FIELD_RETRY_AFTER``
+    "Retry-After"
+    ``TS_MIME_LEN_RETRY_AFTER``
+
+``TS_MIME_FIELD_SENDER``
+    "Sender"
+    ``TS_MIME_LEN_SENDER``
+
+``TS_MIME_FIELD_SERVER``
+    "Server"
+    ``TS_MIME_LEN_SERVER``
+
+``TS_MIME_FIELD_SET_COOKIE``
+    "Set-Cookie"
+    ``TS_MIME_LEN_SET_COOKIE``
+
+``TS_MIME_FIELD_SUBJECT``
+    "Subject"
+    ``TS_MIME_LEN_SUBJECTTS_MIME_LEN_SUBJECT``
+
+``TS_MIME_FIELD_SUMMARY``
+    "Summary"
+    ``TS_MIME_LEN_SUMMARY``
+
+``TS_MIME_FIELD_TE``
+    "TE"
+    ``TS_MIME_LEN_TE``
+
+``TS_MIME_FIELD_TRANSFER_ENCODING``
+    "Transfer-Encoding"
+    ``TS_MIME_LEN_TRANSFER_ENCODING``
+
+``TS_MIME_FIELD_UPGRADE``
+    "Upgrade"
+    ``TS_MIME_LEN_UPGRADE``
+
+``TS_MIME_FIELD_USER_AGENT``
+    "User-Agent"
+    ``TS_MIME_LEN_USER_AGENT``
+
+``TS_MIME_FIELD_VARY``
+    "Vary"
+    ``TS_MIME_LEN_VARY``
+
+``TS_MIME_FIELD_VIA``
+    "Via"
+    ``TS_MIME_LEN_VIA``
+
+``TS_MIME_FIELD_WARNING``
+    "Warning"
+    ``TS_MIME_LEN_WARNING``
+
+``TS_MIME_FIELD_WWW_AUTHENTICATE``
+    "Www-Authenticate"
+    ``TS_MIME_LEN_WWW_AUTHENTICATE``
+
+``TS_MIME_FIELD_XREF``
+    "Xref"
+    ``TS_MIME_LEN_XREF``
+
+The header field names above are defined in ``ts.h`` as ``const char*``
+strings. When Traffic Server sets the name portion of a header field (or
+any portion for that matter), it quickly checks to see if the new value
+is one of the known values. If it is, then Traffic Server stores a
+pointer into a global table instead of storing the known value in the
+marshal buffer. The header field names listed above are also pointers
+into this table, which enables simple pointer comparison of the value
+returned from ``TSMimeHdrFieldNameGet`` with one of the values listed
+above. It is recommended that you use the above values when referring to
+one of the known header field names to avoid the possibility of a
+spelling error.
+
+Traffic Server adds one important feature to MIME fields that you may
+not know about: Traffic Server does not print a MIME field if the field
+name begins with the '``@``\ ' symbol. For example: a plugin can add the
+field "``@My-Field``\ " to a header. Even though Traffic Server never
+sends that field out in a request to an origin server or in a response
+to a client, it can be printed to Traffic Server logs by defining a
+custom log configuration file that explicitly logs such fields. This
+provides a useful mechanism for plugins to store information about an
+object in one of the MIME headers associated with the object.
+
+.. _MimeHeaderFxns:
+
+The MIME header functions are listed below:
+
+-  :c:func:`TSMimeHdrFieldAppend`
+-  :c:func:`TSMimeHdrFieldClone`
+-  :c:func:`TSMimeHdrFieldCopy`
+-  :c:func:`TSMimeHdrFieldCopyValues`
+-  :c:func:`TSMimeHdrFieldCreate`
+-  :c:func:`TSMimeHdrFieldDestroy`
+-  :c:func:`TSMimeHdrFieldLengthGet`
+-  :c:func:`TSMimeHdrFieldNameGet`
+-  :c:func:`TSMimeHdrFieldNameSet`
+-  :c:func:`TSMimeHdrFieldNext`
+-  :c:func:`TSMimeHdrFieldNextDup`
+-  :c:func:`TSMimeHdrFieldValueAppend`
+-  :c:func:`TSMimeHdrFieldValueAppend`
+-  :c:func:`TSMimeHdrFieldValueDateGet`
+-  :c:func:`TSMimeHdrFieldValueDateInsert`
+-  :c:func:`TSMimeHdrFieldValueDateSet`
+-  :c:func:`TSMimeHdrFieldValueIntGet`
+-  :c:func:`TSMimeHdrFieldValueIntSet`
+-  :c:func:`TSMimeHdrFieldValueStringGet`
+-  :c:func:`TSMimeHdrFieldValueStringInsert`
+-  :c:func:`TSMimeHdrFieldValueStringSet`
+-  :c:func:`TSMimeHdrFieldValueUintGet`
+-  :c:func:`TSMimeHdrFieldValueUintInsert`
+-  :c:func:`TSMimeHdrFieldValueUintSet`
+-  :c:func:`TSMimeHdrFieldValuesClear`
+-  :c:func:`TSMimeHdrFieldValuesCount`
+-  :c:func:`TSMimeHdrClone`
+-  :c:func:`TSMimeHdrCopy`
+-  :c:func:`TSMimeHdrCreate`
+-  :c:func:`TSMimeHdrDestroy`
+-  :c:func:`TSMimeHdrFieldFind`
+-  :c:func:`TSMimeHdrFieldGet`
+-  :c:func:`TSMimeHdrFieldRemove`
+-  :c:func:`TSMimeHdrFieldsClear`
+-  :c:func:`TSMimeHdrFieldsCount`
+-  :c:func:`TSMimeHdrLengthGet`
+-  :c:func:`TSMimeHdrParse`
+-  :c:func:`TSMimeParserClear`
+-  :c:func:`TSMimeParserCreate`
+-  :c:func:`TSMimeParserDestroy`
+-  :c:func:`TSMimeHdrPrint`
+
diff --git a/doc/sdk/http-headers/urls.en.rst b/doc/sdk/http-headers/urls.en.rst
new file mode 100644
index 00000000..0b24e63b
--- /dev/null
+++ b/doc/sdk/http-headers/urls.en.rst
@@ -0,0 +1,132 @@
+URLs
+****
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+API URL functions provide access to URL data stored in marshal buffers.
+The URL functions can create, copy, retrieve or delete entire URLs; they
+can also retrieve or modify parts of URLs, such as port or scheme
+information.
+
+The general form of an Internet URL is:
+
+::
+
+       scheme://user:password@host:port/stuff
+
+The URL data structure includes support for two specific types of
+internet URLs. HTTP URLs have the form:
+
+::
+
+       http://user:password@host:port/path;params?query#fragment
+
+The URL port is stored as integer. All remaining parts of the URL
+(scheme, user, etc.) are stored as strings. Traffic Server URL functions
+are named according to the portion of the URL on which they operate. For
+instance, the function that retrieves the host portion of a URL is named
+``TSUrlHostGet``.
+
+To facilitate fast comparisons and reduce storage size, Traffic Server
+defines several preallocated scheme names.
+
+``TS_URL_SCHEME_FILE``
+    "file"
+    ``TS_URL_LEN_FILE``
+
+``TS_URL_SCHEME_FTP``
+    "ftp"
+    ``TS_URL_LEN_FTP``
+
+``TS_URL_SCHEME_GOPHER``
+    "gopher"
+    ``TS_URL_LEN_GOPHER``
+
+``TS_URL_SCHEME_HTTP``
+    "http"
+    ``TS_URL_LEN_HTTP``
+
+``TS_URL_SCHEME_HTTPS``
+    "https"
+    ``TS_URL_LEN_HTTPS``
+
+``TS_URL_SCHEME_MAILTO``
+    "mailto"
+    ``TS_URL_LEN_MAILTO``
+
+``TS_URL_SCHEME_NEWS``
+    "news"
+    ``TS_URL_LEN_NEWS``
+
+``TS_URL_SCHEME_NNTP``
+    "nntp"
+    ``TS_URL_LEN_NNTP``
+
+``TS_URL_SCHEME_PROSPERO``
+    "prospero"
+    ``TS_URL_LEN_PROSPERO``
+
+``TS_URL_SCHEME_TELNET``
+    "telnet"
+    ``TS_URL_LEN_TELNET``
+
+``TS_URL_SCHEME_WAIS``
+    "wais"
+    ``TS_URL_LEN_WAIS``
+
+The scheme names above are defined in ``ts.h`` as ``const`` ``char*``
+strings. When Traffic Server sets the scheme portion of the URL (or any
+portion for that matter), it quickly checks to see if the new value is
+one of the known values. If it is, then it stores a pointer into a
+global table (instead of storing the known value in the marshal buffer).
+The scheme values listed above are also pointers into this table. This
+allows simple pointer comparison of the value returned from
+``TSUrlSchemeGet`` with one of the values listed above. You should use
+the Traffic Server-defined values when referring to one of the known
+schemes, since doing so can prevent the possibility of spelling errors.
+
+Traffic Server **URL functions** are listed below:
+
+:c:func:`TSUrlClone`
+:c:func:`TSUrlCopy`
+:c:func:`TSUrlCreate`
+:c:func:`TSUrlDestroy`
+:c:func:`TSUrlPrint`
+:c:func:`TSUrlFtpTypeGet`
+:c:func:`TSUrlFtpTypeSet`
+:c:func:`TSUrlHostGet`
+:c:func:`TSUrlHostSet`
+:c:func:`TSUrlHttpFragmentGet`
+:c:func:`TSUrlHttpFragmentSet`
+:c:func:`TSUrlHttpParamsGet`
+:c:func:`TSUrlHttpParamsSet`
+:c:func:`TSUrlHttpQueryGet`
+:c:func:`TSUrlHttpQuerySet`
+:c:func:`TSUrlLengthGet`
+:c:func:`TSUrlParse`
+:c:func:`TSUrlPasswordGet`
+:c:func:`TSUrlPasswordSet`
+:c:func:`TSUrlPathGet`
+:c:func:`TSUrlPathSet`
+:c:func:`TSUrlPortGet`
+:c:func:`TSUrlPortSet`
+:c:func:`TSUrlSchemeGet`
+:c:func:`TSUrlSchemeSet`
+:c:func:`TSUrlStringGet`
+:c:func:`TSUrlUserGet`
+:c:func:`TSUrlUserSet`
diff --git a/doc/sdk/http-hooks-and-transactions.en.rst b/doc/sdk/http-hooks-and-transactions.en.rst
new file mode 100644
index 00000000..916a8afa
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions.en.rst
@@ -0,0 +1,144 @@
+HTTP Hooks and Transactions
+***************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Hooks are points in Traffic Server transaction processing where plugins
+can step in and do some work. Registering a plugin function for callback
+amounts to "adding" the function to a hook. You can register your plugin
+to be called back for every single transaction or only for specific
+transactions.
+
+This chapter contains the following sections:
+
+.. toctree::
+   :maxdepth: 2
+
+   http-hooks-and-transactions/adding-hooks.en
+   http-hooks-and-transactions/http-sessions.en
+   http-hooks-and-transactions/http-transactions.en
+   http-hooks-and-transactions/intercepting-http-transactions.en
+   http-hooks-and-transactions/initiate-http-connection.en
+   http-hooks-and-transactions/http-alternate-selection.en
+
+The Set of Hooks
+----------------
+
+To understand hooks and transactions, you should be familiar with the
+following terminology:
+
+HTTP Transaction
+----------------
+
+A **transaction** consists of a single HTTP request from a client and
+the response Traffic Server sends to that client. Thus, a transaction
+begins when Traffic Server receives a request and ends when Traffic
+Server sends the response.
+
+Traffic Server uses **HTTP state machines** to process transactions. The
+state machines follow a complex set of states involved in sophisticated
+caching and document retrieval (taking into account, for example,
+alternate selection, freshness criteria, and hierarchical caching). The
+Traffic Server API provides hooks to a subset of these states, as
+illustrated in the :ref:`http-txn-state-diagram` below.
+
+Transform hooks
+---------------
+
+The two **transform hooks**, ``TS_HTTP_REQUEST_TRANSFORM_HOOK`` and
+``TS_HTTP_RESPONSE_TRANSFORM_HOOK``, are called in the course of an HTTP
+transform. To see where in the HTTP transaction they are called, look
+for the "set up transform" ovals in the :ref:`http-txn-state-diagram` below.
+
+HTTP session
+------------
+
+A **session** consists of a single client connection to Traffic Server;
+it may consist of a single transaction or several transactions in
+succession. The session starts when the client connection opens and ends
+when the connection closes.
+
+.. _http-txn-state-diagram:
+
+HTTP Transaction State Diagram
+------------------------------
+
+.. graphviz::
+   :alt: HTTP Transaction State Diagram
+
+   digraph http_txn_state_diagram{
+     accept -> TS_HTTP_TXN_START_HOOK;
+     TS_HTTP_TXN_START_HOOK -> "read req hdrs";
+     "read req hdrs" -> TS_HTTP_READ_REQUEST_HDR_HOOK;
+     TS_HTTP_READ_REQUEST_HDR_HOOK -> TS_HTTP_PRE_REMAP_HOOK;
+     TS_HTTP_PRE_REMAP_HOOK -> "remap request";
+     "remap request" -> TS_HTTP_POST_REMAP_HOOK;
+     TS_HTTP_POST_REMAP_HOOK -> "cache lookup";
+     "cache lookup" -> DNS [label = "miss"];
+     DNS -> TS_HTTP_OS_DNS_HOOK;
+     TS_HTTP_OS_DNS_HOOK -> TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK;
+     "cache lookup" -> TS_HTTP_SELECT_ALT_HOOK [label = "hit"];
+     TS_HTTP_SELECT_ALT_HOOK -> "cache match";
+     "cache match" -> TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK [label="no match"];
+     "cache match" -> TS_HTTP_READ_CACHE_HDR_HOOK [label = "cache fresh"];
+     TS_HTTP_READ_CACHE_HDR_HOOK -> "cache fresh";
+     "cache fresh" -> TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK;
+     TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK -> "lock URL in cache" [label = "miss"];
+     TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK -> "lock URL in cache" [label = "no match  "];
+     TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK -> "lock URL in cache" [label = "stale"];
+     TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK -> "send cached hdrs" [label = "fresh"];
+     "send cached hdrs" -> "set up transform";
+     "lock URL in cache" -> "pick address";
+     "pick address" -> "try connect" [label = "       "];
+     "try connect" -> "pick address" [label = "fail"];
+     "try connect" -> TS_HTTP_SEND_REQUEST_HDR_HOOK [label = "success"];
+     TS_HTTP_SEND_REQUEST_HDR_HOOK -> "send req hdrs";
+     "send req hdrs" -> "set up POST/PUT read" [label = "POST/PUT"];
+     "send req hdrs" -> "read reply hdrs" [label = "GET"];
+     "set up POST/PUT read" -> "set up req transform";
+     "set up req transform" -> "tunnel req body";
+     "tunnel req body" -> "read reply hdrs";
+     "read reply hdrs" -> TS_HTTP_READ_RESPONSE_HDR_HOOK;
+     TS_HTTP_READ_RESPONSE_HDR_HOOK -> "check valid";
+     "check valid" -> "setup server read" [label = "yes"];
+     "check valid" -> "pick address" [label = "no"];
+     "setup server read" -> "set up cache write" [label = "cacheable"];
+     "setup server read" -> "set up transform" [label = "uncacheable"];
+     "set up cache write" -> "set up transform";
+     "set up transform" -> TS_HTTP_SEND_RESPONSE_HDR_HOOK;
+     TS_HTTP_SEND_RESPONSE_HDR_HOOK -> "send reply hdrs";
+     "send reply hdrs" -> "tunnel response";
+     "tunnel response" -> TS_HTTP_TXN_CLOSE_HOOK;
+     TS_HTTP_TXN_CLOSE_HOOK -> accept;
+    
+     TS_HTTP_TXN_START_HOOK [shape=box];
+     TS_HTTP_READ_REQUEST_HDR_HOOK [shape = box];
+     TS_HTTP_PRE_REMAP_HOOK [shape = box];
+     TS_HTTP_POST_REMAP_HOOK [shape = box];
+     TS_HTTP_OS_DNS_HOOK [shape = box];
+     TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK[shape = box];
+     TS_HTTP_SELECT_ALT_HOOK [shape = box];
+     TS_HTTP_READ_CACHE_HDR_HOOK [shape = box];
+     TS_HTTP_SEND_REQUEST_HDR_HOOK [shape = box];
+     "set up req transform" [tooltip = "req transform takes place here"];
+     TS_HTTP_READ_RESPONSE_HDR_HOOK [shape = box];
+     "set up transform" [tooltip = "response transform takes place here"];
+     TS_HTTP_SEND_RESPONSE_HDR_HOOK [shape = box];
+     TS_HTTP_TXN_CLOSE_HOOK [shape = box];
+   }
+
diff --git a/doc/sdk/http-hooks-and-transactions/adding-hooks.en.rst b/doc/sdk/http-hooks-and-transactions/adding-hooks.en.rst
new file mode 100644
index 00000000..6a3cbb40
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions/adding-hooks.en.rst
@@ -0,0 +1,151 @@
+Adding Hooks
+************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+There are several ways to add hooks to your plugin.
+
+-  **Global HTTP hooks** HTTP transaction hooks are set on a global
+   basis using the function ``TSHttpHookAdd``. This means that the
+   continuation specified as the parameter to ``TSHttpHookAdd`` is
+   called for every transaction. ``TSHttpHookAdd`` must be used in
+   ``TSPluginInit``.
+
+-  **Transaction hooks** Transaction hooks can be used to call plugins
+   back for a specific HTTP transaction. You cannot add transaction
+   hooks in ``TSPluginInit``; you first need a handle to a transaction.
+   See :doc:`Accessing the Transaction Being
+   Processed <../header-based-plugin-examples/blacklist-plugin/accessing-the-transaction-being-processed.en>`
+
+-  **Transformation hooks** Transformation hooks are a special case of
+   transaction hooks. See
+   :c:func:`TSVConnCacheObjectSizeGet`
+   for more information about transformation hooks. You add a
+   transformation hook using ``TSHttpTxnHookAdd``, as described in :doc:`HTTP
+   Transactions <http-transactions.en>`.
+
+-  **Session hooks** An HTTP session starts when a client opens a
+   connection to Traffic Server and ends when the connection closes. A
+   session can consist of several transactions. Session hooks enable you
+   to hook your plugin to a particular point in every transaction within
+   a specified session (see :doc:`HTTP Sessions <http-sessions.en>`).
+   Session hooks are added in a manner similar to transaction hooks (ie,
+   you first need a handle to an HTTP session).
+
+-  **HTTP select alternate hook** Alternate selection hooks enable you
+   to hook on to the alternate selection state. These hooks must be
+   added globally, since Traffic Server does not have a handle to a
+   transaction or session when alternate selection is taking place. See
+   :doc:`HTTP Alternate Selection <http-alternate-selection.en>` for
+   information on the alternate selection mechanism.
+
+All of the hook addition functions
+(:c:func:`TSHttpHookAdd`,
+:c:func:`TSHttpSsnHookAdd`,
+:c:func:`TSHttpSsnReenable`)
+take ``TSHttpHookID`` (identifies the hook to add on to) and ``TSCont``
+(the basic callback mechanism in Traffic Server). A single ``TSCont``
+can be added to any number of hooks at a time.
+
+An HTTP hook is identified by the enumerated type ``TSHttpHookID``. The
+values for ``TSHttpHookID`` are:
+
+**Values for TSHttpHookID**
+
+``TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK``
+    Called after the HTTP state machine has completed the cache lookup
+    for the document requested in the ongoing transaction. Register this
+    hook via ``TSHttpTxnHookAdd`` or ``TSHttpHookAdd``. Corresponds to
+    the event ``TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE``.
+
+``TS_HTTP_OS_DNS_HOOK``
+    Called immediately after the HTTP state machine has completed a DNS
+    lookup of the origin server. The HTTP state machine will know the
+    origin server's IP address at this point, which is useful for
+    performing both authentication and blacklisting. Corresponds to the
+    event ``TS_EVENT_HTTP_OS_DNS``.
+
+``TS_HTTP_POST_REMAP_HOOK``
+    Called immediately after remapping occurs, before cache lookup.
+    Corresponds to the event ``TS_EVENT_HTTP_POST_REMAP``.
+
+``TS_HTTP_PRE_REMAP_HOOK``
+    Called after the request header is read from the client, before any
+    remapping of the headers occurs. Corresponds to the event
+    ``TS_EVENT_HTTP_PRE_REMAP``.
+
+``TS_HTTP_READ_CACHE_HDR_HOOK``
+    Called immediately after the request and response header of a
+    previously-cached object is read from cache. This hook is only
+    called if the document is being served from cache. Corresponds to
+    the event ``TS_EVENT_HTTP_READ_CACHE_HDR``.
+
+``TS_HTTP_READ_RESPONSE_HDR_HOOK``
+    Called immediately after the response header is read from the origin
+    server or parent proxy. Corresponds to the event
+    ``TS_EVENT_HTTP_READ_RESPONSE_HDR``.
+
+``TS_HTTP_RESPONSE_TRANSFORM_HOOK``
+    See :ref:`"Transformations" <transformations>`
+    for information about transformation hooks.
+
+``TS_HTTP_READ_REQUEST_HDR_HOOK``
+    Called immediately after the request header is read from the client.
+    Corresponds to the event ``TS_EVENT_HTTP_READ_REQUEST_HDR``.
+
+``TS_HTTP_REQUEST_TRANSFORM_HOOK``
+    See :ref:`"Transformations" <transformations>`
+    for information about transformation hooks.
+
+``TS_HTTP_SELECT_ALT_HOOK``
+    See :doc:`"HTTP Alternate Selection" <http-alternate-selection.en>` for
+    information about the alternate selection mechanism.
+
+``TS_HTTP_SEND_RESPONSE_HDR_HOOK``
+    Called immediately before the proxy's response header is written to
+    the client; this hook is usually used for modifying the response
+    header. Corresponds to the event
+    ``TS_EVENT_HTTP_SEND_RESPONSE_HDR``.
+
+``TS_HTTP_SEND_REQUEST_HDR_HOOK``
+    Called immediately before the proxy's request header is sent to the
+    origin server or the parent proxy. This hook is not called if the
+    document is being served from cache. This hook is usually used for
+    modifying the proxy's request header before it is sent to the origin
+    server or parent proxy.
+
+``TS_HTTP_SSN_CLOSE_HOOK``
+    Called when an HTTP session ends. A session ends when the client
+    connection is closed. You can only add this hook as a global hook
+
+``TS_HTTP_SSN_START_HOOK``
+    Called when an HTTP session is started. A session starts when a
+    client connects to Traffic Server. You can only add this hook as a
+    global hook.
+
+``TS_HTTP_TXN_CLOSE_HOOK``
+    Called when an HTTP transaction ends.
+
+``TS_HTTP_TXN_START_HOOK``
+    Called when an HTTP transaction is started. A transaction starts
+    when either a client connects to Traffic Server and data is
+    available on the connection, or a previous client connection that
+    was left open for keep alive has new data available.
+
+The function you use to add a global HTTP hook is
+:c:func:`TSHttpHookAdd`.
diff --git a/doc/sdk/http-hooks-and-transactions/http-alternate-selection.en.rst b/doc/sdk/http-hooks-and-transactions/http-alternate-selection.en.rst
new file mode 100644
index 00000000..3a2b3b5f
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions/http-alternate-selection.en.rst
@@ -0,0 +1,189 @@
+HTTP Alternate Selection
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+The HTTP alternate selection functions provide a mechanism for hooking
+into Traffic Server's alternate selection mechanism and augmenting it
+with additional information. **HTTP alternate selection** refers to the
+process of choosing between several alternate versions of a document for
+a specific URL. Alternates arise because the HTTP 1.1 specification
+allows different documents to be sent back for the same URL (depending
+on the clients request). For example, a server might send back a GIF
+image to a client that only accepts GIF images, and might send back a
+JPEG image to a client that only accepts JPEG images.
+
+The alternate selection mechanism is invoked when Traffic Server looks
+up a URL in its cache. For each URL, Traffic Server stores a vector of
+alternates. For each alternate in this vector, Traffic Server computes a
+quality value between 0 and 1 that represents how "good" the alternate
+is. A quality value of 0 means that the alternate is unacceptable; a
+value of 1 means that the alternate is a perfect match.
+
+If a plugin hooks onto the ``TS_HTTP_SELECT_ALT_HOOK``, then it will be
+called back when Traffic Server performs alternate selection. You cannot
+register locally to the hook ``TS_HTTP_SELECT_ALT_HOOK`` by using
+``TSHttpTxnHookAdd`` - you can only do so by using only
+``TSHttpHookAdd``. Since Traffic Server does not actually have an HTTP
+transaction or an HTTP session on hand when alternate selection is
+performed, it is only valid to hook onto the global list of
+``TS_HTTP_SELECT_ALT_HOOK``. Traffic Server calls each of the select
+alternate hooks with the ``TS_EVENT_HTTP_SELECT_ALT`` event. The
+``void *edata`` argument that is passed to the continuation is a pointer
+to an ``TSHttpAltInfo`` structure. It can be used later to call the HTTP
+alternate selection functions listed at the end of this section. Unlike
+other hooks, this alternate selection callout is non-blocking; the
+expectation is that the quality value for the alternate will be changed
+by a call to ``TSHttpAltInfoQualitySet``.
+
+.. note::
+
+   HTTP SM does not have to be reenabled using ``TSHttpTxnReenable`` or any
+   other APIs; just return from the function.
+
+The sample code below shows how to call the alternate APIs.
+
+.. code-block:: c
+
+   static void handle_select_alt(TSHttpAltInfo infop)
+   {
+      TSMBuffer client_req_buf, cache_resp_buf;
+      TSMLoc client_req_hdr, cache_resp_hdr;
+      
+      TSMLoc accept_transform_field;
+      TSMLoc content_transform_field;
+      
+      int accept_transform_len = -1, content_transform_len = -1;
+      const char* accept_transform_value = NULL;
+      const char* content_transform_value = NULL;
+      int content_plugin, accept_plugin;
+      
+      float quality;
+      
+      /* get client request, cached request and cached response */
+      TSHttpAltInfoClientReqGet (infop, &client_req_buf, &client_req_hdr);
+      TSHttpAltInfoCachedRespGet(infop, &cache_resp_buf, &cache_resp_hdr);
+      
+      /* get the Accept-Transform field value from the client request */
+      accept_transform_field = TSMimeHdrFieldFind(client_req_buf,
+         client_req_hdr, "Accept-Transform", -1);
+      if (accept_transform_field) {
+         TSMimeHdrFieldValueStringGet(client_req_buf, client_req_hdr,
+            accept_transform_field, 0, &accept_transform_value, &accept_transform_len);
+         TSDebug(DBG_TAG, "Accept-Transform = |%s|",
+            accept_transform_value);
+      }
+       
+      /* get the Content-Transform field value from cached server response */
+      content_transform_field = TSMimeHdrFieldFind(cache_resp_buf,
+         cache_resp_hdr, "Content-Transform", -1);
+      if (content_transform_field) {
+         TSMimeHdrFieldValueStringGet(cache_resp_buf, cache_resp_hdr,
+            content_transform_field, 0, &content_transform_value, &content_transform_len);
+         TSDebug(DBG_TAG, "Content-Transform = |%s|",
+            content_transform_value);
+      }
+       
+      /* compute quality */
+      accept_plugin = (accept_transform_value && (accept_transform_len > 0) &&
+         (strncmp(accept_transform_value, "plugin",
+            accept_transform_len) == 0));
+      
+      content_plugin = (content_transform_value && (content_transform_len >0) &&
+         (strncmp(content_transform_value, "plugin",
+            content_transform_len) == 0));
+      
+      if (accept_plugin) {
+         quality = content_plugin ? 1.0 : 0.0;
+      } else {
+         quality = content_plugin ? 0.0 : 0.5;
+      }
+      
+      TSDebug(DBG_TAG, "Setting quality to %3.1f", quality);
+       
+      /* set quality for this alternate */
+      TSHttpAltInfoQualitySet(infop, quality);
+       
+      /* cleanup */
+      if (accept_transform_field)
+         TSHandleMLocRelease(client_req_buf, client_req_hdr,
+            accept_transform_field);
+      TSHandleMLocRelease(client_req_buf, TS_NULL_MLOC, client_req_hdr);
+      
+      if (content_transform_field)
+         TSHandleMLocRelease(cache_resp_buf, cache_resp_hdr,
+            content_transform_field);
+      TSHandleMLocRelease(cache_resp_buf, TS_NULL_MLOC, cache_resp_hdr);
+   }
+       
+   static int alt_plugin(TSCont contp, TSEvent event, void *edata)
+   {
+      TSHttpAltInfo infop;
+      
+      switch (event) {
+         case TS_EVENT_HTTP_SELECT_ALT:
+            infop = (TSHttpAltInfo)edata;
+            handle_select_alt(infop);
+            break;
+
+         default:
+            break;
+      }
+      
+      return 0;
+   }
+       
+   void TSPluginInit (int argc, const char *argv[])
+   {
+      TSHttpHookAdd(TS_HTTP_SELECT_ALT_HOOK, TSContCreate (alt_plugin,
+         NULL));
+   }
+
+Traffic Server augments the alternate selection through these callouts
+using the following algorithm:
+
+1. Traffic Server computes its own quality value for the alternate,
+   taking into account the quality of the accept match, the encoding
+   match, and the language match.
+
+2. Traffic Server then calls out each of the continuations on the global
+   ``TS_HTTP_SELECT_ALT_HOOK``'s list.
+
+3. It multiplies its quality value with the value returned by each
+   callout. Since all of the values are clamped to be between 0 and 1,
+   the final value will be between 0 and 1 as well.
+
+4. This algorithm also ensures that a single callout can block the usage
+   of a given alternate by specifying a quality value of 0.
+
+A common usage for the alternate selection mechanism is when a plugin
+transforms a document for some clients and not for others, but wants to
+store both the transformed and unchanged document. The client's request
+will specify whether it accepted the transformed document. The plugin
+will then determine if the alternate matches this specification and then
+set the appropriate quality level for the alternate.
+
+The HTTP alternate selection functions are:
+
+-  `TSHttpAltInfoCachedReqGet <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#af4f3a56716e3e97afd582c7fdb14bcb7>`_
+
+-  `TSHttpAltInfoCachedRespGet <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#aff5861ae4a4a7a6ce7b2d669c113b3bb>`_
+
+-  `TSHttpAltInfoClientReqGet <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#a74d494c6442b6012d8385e92f0e14dee>`_
+
+-  `TSHttpAltInfoQualitySet <http://people.apache.org/~amc/ats/doc/html/ts_8h.html#a978b7160a048491d5698e0f4c0c79aad>`_
diff --git a/doc/sdk/http-hooks-and-transactions/http-sessions.en.rst b/doc/sdk/http-hooks-and-transactions/http-sessions.en.rst
new file mode 100644
index 00000000..b4014e53
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions/http-sessions.en.rst
@@ -0,0 +1,52 @@
+HTTP Sessions
+*************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+An **HTTP session** is an object that is defined for the lifetime of a
+client's TCP session. The Traffic Server API enables you to add a global
+hook to the start or end of an HTTP session, as well as add session
+hooks that call back your plugin for every transaction within a given
+session. When a client connects to Traffic Server, it opens up a TCP
+connection and sends one or more HTTP requests. An individual request
+and its response comprise the HTTP transaction. The **HTTP session**
+begins when the client opens the connection and ends when the connection
+closes.
+
+The HTTP session hooks are:
+
+-  ``TS_HTTP_SSN_START_HOOK`` Called when an HTTP session is started (a
+   session starts when a client connects to Traffic Server). This hook
+   must be added as a global hook.
+
+-  ``TS_HTTP_SSN_CLOSE_HOOK`` Called when an HTTP session ends (a
+   session ends when the client connection is closed). This hook must be
+   added as a global hook.
+
+Use the session hooks to get a handle to a session (an ``TSHttpSsn``
+object). If you want your plugin to be called back for each transaction
+within the session, then use ``TSHttpSsnHookAdd``.
+
+**Note:** you must reenable the session with ``TSHttpSsnReenable`` after
+processing a session hook.
+
+The session hook functions are listed below:
+
+-  :c:func:`TSHttpSsnHookAdd`
+-  :c:func:`TSHttpSsnReenable`
+
diff --git a/doc/sdk/http-hooks-and-transactions/http-transactions.en.rst b/doc/sdk/http-hooks-and-transactions/http-transactions.en.rst
new file mode 100644
index 00000000..7aad410c
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions/http-transactions.en.rst
@@ -0,0 +1,203 @@
+HTTP Transactions
+*****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The HTTP transaction functions enable you to set up plugin callbacks to
+HTTP transactions and obtain/modify information about particular HTTP
+transactions.
+
+As described in the section on HTTP sessions, an **HTTP transaction** is
+an object defined for the lifetime of a single request from a client and
+the corresponding response from Traffic Server. The **``TSHttpTxn``**
+structure is the main handle given to a plugin for manipulating a
+transaction's internal state. Additionally, an HTTP transaction has a
+reference back to the HTTP session that created it.
+
+The sample code below illustrates how to register locally to a
+transaction and associate data to the transaction.
+
+.. code-block:: c
+
+    /*
+    * Simple plugin that illustrates:
+    * - how to register locally to a transaction
+    * - how to deal with data that's associated with a tranaction
+    *
+    * Note: for readability, error checking is omitted
+    */
+
+    #include <ts/ts.h>
+
+    #define DBG_TAG "txn"
+
+    /* Structure to be associated to txns */
+    typedef struct {
+       int i;
+       float f;
+       char *s;
+    } TxnData;
+
+    /* Allocate memory and init a TxnData structure */
+    TxnData *
+    txn_data_alloc()
+    {
+       TxnData *data;
+       data = TSmalloc(sizeof(TxnData));
+        
+       data->i = 1;
+       data->f = 0.5;
+       data->s = "Constant String";
+       return data;
+    }
+        
+    /* Free up a TxnData structure */
+    void
+    txn_data_free(TxnData *data)
+    {
+       TSfree(data);
+    }
+        
+    /* Handler for event READ_REQUEST and TXN_CLOSE */
+    static int
+    local_hook_handler (TSCont contp, TSEvent event, void *edata)
+    {
+       TSHttpTxn txnp = (TSHttpTxn) edata;
+       TxnData *txn_data = TSContDataGet(contp);
+       switch (event) {
+       case TS_EVENT_HTTP_READ_REQUEST_HDR:
+          /* Modify values of txn data */
+          txn_data->i = 2;
+          txn_data->f = 3.5;
+          txn_data->s = "Constant String 2";
+          break;
+        
+       case TS_EVENT_HTTP_TXN_CLOSE:
+          /* Print txn data values */
+          TSDebug(DBG_TAG, "Txn data i=%d f=%f s=%s", txn_data->i, txn_data->f, txn_data->s);
+        
+          /* Then destroy the txn cont and its data */
+          txn_data_free(txn_data);
+          TSContDestroy(contp);
+          break;
+        
+       default:
+           TSAssert(!"Unexpected event");
+           break;
+       }
+        
+       TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+       return 1;
+    }
+        
+    /* Handler for event TXN_START */
+    static int
+    global_hook_handler (TSCont contp, TSEvent event, void *edata)
+    {
+       TSHttpTxn txnp = (TSHttpTxn) edata;
+       TSCont txn_contp;
+       TxnData *txn_data;
+        
+       switch (event) {
+       case TS_EVENT_HTTP_TXN_START:
+          /* Create a new continuation for this txn and associate data to it */
+          txn_contp = TSContCreate(local_hook_handler, TSMutexCreate());
+          txn_data = txn_data_alloc();
+          TSContDataSet(txn_contp, txn_data);
+        
+          /* Registers locally to hook READ_REQUEST and TXN_CLOSE */
+          TSHttpTxnHookAdd(txnp, TS_HTTP_READ_REQUEST_HDR_HOOK, txn_contp);
+          TSHttpTxnHookAdd(txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_contp);
+          break;
+        
+       default:
+          TSAssert(!"Unexpected event");
+          break;
+       }
+        
+       TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+       return 1;
+    }
+        
+        
+    void
+    TSPluginInit (int argc, const char *argv[])
+    {
+       TSCont contp;
+        
+       /* Note that we do not need a mutex for this txn since it registers globally
+          and doesn't have any data associated with it */
+       contp = TSContCreate(global_hook_handler, NULL);
+        
+       /* Register gloabally */
+       TSHttpHookAdd(TS_HTTP_TXN_START_HOOK, contp);
+    }
+
+See :doc:`Adding Hooks <adding-hooks.en>` for background about HTTP
+transactions and HTTP hooks, as well as :doc:`HTTP Hooks and
+Transactions <../http-hooks-and-transactions.en>` Also see the :ref:`HTTP
+Transaction State Diagram <http-txn-state-diagram>`
+for an illustration of the steps involved in a typical HTTP transaction.
+
+The HTTP transaction functions are:
+
+-  :c:func:`TSHttpTxnCacheLookupStatusGet`
+
+-  :c:func:`TSHttpTxnCachedReqGet`
+   - Note that it is an error to modify cached headers.
+
+-  :c:func:`TSHttpTxnCachedRespGet`
+   - Note that it is an error to modify cached headers.
+
+-  :c:func:`TSHttpTxnClientIncomingPortGet`
+
+-  :c:func:`TSHttpTxnClientIPGet`
+
+-  :c:func:`TSHttpTxnClientRemotePortGet`
+
+-  :c:func:`TSHttpTxnClientReqGet`
+   - Plugins that must read client request headers use this call to
+   retrieve the HTTP header.
+
+-  :c:func:`TSHttpTxnClientRespGet`
+
+-  :c:func:`TSHttpTxnErrorBodySet`
+
+-  :c:func:`TSHttpTxnHookAdd`
+
+-  :c:func:`TSHttpTxnNextHopAddrGet`
+
+-  :c:func:`TSHttpTxnParentProxySet`
+
+-  :c:func:`TSHttpTxnReenable`
+
+-  :c:func:`TSHttpTxnServerAddrGet`
+
+-  :c:func:`TSHttpTxnServerReqGet`
+
+-  :c:func:`TSHttpTxnServerRespGet`
+
+-  :c:func:`TSHttpTxnSsnGet`
+
+-  :c:func:`TSHttpTxnTransformedRespCache`
+
+-  :c:func:`TSHttpTxnTransformRespGet`
+
+-  :c:func:`TSHttpTxnUntransformedRespCache`
+
+
diff --git a/doc/sdk/http-hooks-and-transactions/initiate-http-connection.en.rst b/doc/sdk/http-hooks-and-transactions/initiate-http-connection.en.rst
new file mode 100644
index 00000000..e5921adf
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions/initiate-http-connection.en.rst
@@ -0,0 +1,25 @@
+Initiate HTTP Connection
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This function enables plugins to initiate HTTP transactions. The
+initiate HTTP connection function is:
+
+-  :c:func:`TSHttpConnect`
+
diff --git a/doc/sdk/http-hooks-and-transactions/intercepting-http-transactions.en.rst b/doc/sdk/http-hooks-and-transactions/intercepting-http-transactions.en.rst
new file mode 100644
index 00000000..9a7d59ba
--- /dev/null
+++ b/doc/sdk/http-hooks-and-transactions/intercepting-http-transactions.en.rst
@@ -0,0 +1,30 @@
+Intercepting HTTP Transactions
+******************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The intercepting HTTP transaction functions enable plugins to intercept
+transactions either after the request is received or upon contact with
+the origin server. The plugin then acts as the origin server using the
+``TSVConn`` interface. The intercepting HTTP transaction function allow
+for reading ``POST`` bodies in plugins as well as using alternative
+transports to the origin server.The intercepting HTTP transaction
+functions are:
+
+-  :c:func:`TSHttpTxnIntercept`
+
diff --git a/doc/sdk/http-transformation-plugin.en.rst b/doc/sdk/http-transformation-plugin.en.rst
new file mode 100644
index 00000000..f446401a
--- /dev/null
+++ b/doc/sdk/http-transformation-plugin.en.rst
@@ -0,0 +1,165 @@
+.. _http-transformation-plugin:
+
+HTTP Transformation Plugins
+***************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Transform plugins examine or transform HTTP message body content. For
+example, transform plugins can:
+
+-  Append text to HTML documents
+
+-  Compress images
+
+-  Do virus checking (on client ``POST`` data or server response data)
+
+-  Do content-based filtering (filter out HTML documents that contain
+   certain terms or expressions)
+
+This chapter explains how to write transform plugins. The following
+examples are discussed in detail:
+
+.. toctree::
+   :maxdepth: 2
+
+   http-transformation-plugin/sample-null-transformation-plugin.en
+   http-transformation-plugin/append-transform-plugin.en
+   http-transformation-plugin/sample-buffered-null-transformation-plugin.en
+
+.. _WritingContentTransformPlugin:
+
+Writing Content Transform Plugins
+---------------------------------
+
+Content transformation plugins transform HTTP response content (such as
+images or HTML documents) and HTTP request content (such as client
+``POST`` data). Because the data stream to be transformed is of variable
+length, these plugins must use a mechanism that passes data from buffer
+to buffer *and* checks to see if the end of the data stream is reached.
+This mechanism is provided by virtual connections (``VConnection``\ s)
+and virtual IO descriptors (``VIO``\ s).
+
+A ``VConnection`` is an abstraction for a data pipe that allows its
+users to perform asynchronous reads and writes without knowing the
+underlying implementation. A transformation is a specific type of
+``VConnection``. A **transformation** connects an input data source and
+an output data sink; this feature enables it to view and modify all the
+data passing through it.
+
+Transformations can be chained together, one after the other, so that
+multiple transformations can be performed on the same content. The
+``VConnection`` type, ``TSVConn``, is actually a subclass of ``TSCont``,
+which means that ``VConnection``\ s (and transformations) are
+continuations. ``VConnection``\ s and transformations can thus exchange
+events, informing one another that data is available for reading or
+writing, or that the end of a data stream is reached.
+
+A ``VIO`` is a description of an IO operation that is in progress.
+Every ``VConnection`` has an associated *input VIO* and an associated
+*output VIO*. When ``VConnection``\ s are transferring data to one
+another, one ``VConnection``'s input ``VIO`` is another
+``VConnection``'s output ``VIO``. A ``VConnection``'s input ``VIO`` is
+also called its **write ``VIO``** because the input ``VIO`` refers to a
+write operation performed on the ``VConnection`` itself. Similarly, the
+outpt ``VIO`` is also called the **read ``VIO``**. For transformations,
+which are designed to pass data in one direction, you can picture the
+relationship between the transformation ``VConnection`` and its
+``VIO``\ s as follows:
+
+**Transformation and its ``VIO``\ s** {#TransformationAndVIOs}
+
+.. figure:: /static/images/sdk/vconnection.jpg
+   :alt: A Transformation and its VIOs
+
+   A Transformation and its VIOs
+
+Because the Traffic Server API places transformations directly in the
+response or request data stream, the transformation ``VConnection`` is
+responsible only for reading the data from the input buffer,
+transforming it, and then writing it to the output buffer. The upstream
+``VConnection`` writes the incoming data to the transformation's input
+buffer. In the figure above, `A Transformation and its
+``VIO``\ s <#TransformationAndVIOs>`__, the input ``VIO`` describes the
+progress of the upstream ``VConnection``'s write operation on the
+transformation, while the output ``VIO`` describes the progress of the
+transformation's write operation on the output (downstream)
+``VConnection``. The **nbytes** value in the ``VIO`` is the total number
+of bytes to be written. The **ndone** value is the current progress, or
+the number of bytes that have been written at a specific point in time.
+
+When writing a transformation plugin, you must understand implementation
+as well as the use of ``VConnection``\ s. The *implementor's side*
+refers to how to implement a ``VConnection`` that others can use. At
+minimum, a transform plugin creates a transformation that sits in the
+data stream and must be able to handle the events that the upstream and
+downstream ``VConnection``\ s send to it. The *user's side* refers to
+how to use a ``VConnection`` to read or write data. At the very least,
+transformations output (write) data.
+
+.. _transformations:
+
+Transformations
+~~~~~~~~~~~~~~~
+
+VIOs
+~~~~
+
+A ``VIO``*or virtual IO is a description of an in progress IO
+operation. The ``VIO`` data structure is used by ``VConnection`` users
+to determine how much progress has been made on a particular IO
+operation, and to reenable an IO operation when it stalls due to buffer
+space. ``VConnection`` implementors use ``VIO``\ s to determine the
+buffer for an IO operation, how much work to do on the IO operation, and
+which continuation to call back when progress on the IO operation is
+made.
+
+The ``TSVIO`` data structure itself is opaque, but it might have been
+defined as follows:
+
+.. code-block:: c
+
+   typedef struct {
+      TSCont continuation;
+      TSVConn vconnection;
+      TSIOBufferReader reader;
+      TSMutex mutex;
+      int nbytes;
+      int ndone;
+   } *TSVIO;
+
+IO Buffers
+~~~~~~~~~~
+
+The **IO buffer** data structure is the building block of the
+``VConnection`` abstraction. An IO buffer is composed of a list of
+buffer blocks which, in turn, point to buffer data. Both the *buffer
+block* (``TSIOBufferBlock``) and *buffer data* (``TSIOBufferData``) data
+structures are reference counted so they can reside in multiple buffers
+at the same time. This makes it extremely efficient to copy data from
+one IO buffer to another using ``TSIOBufferCopy``, since Traffic Server
+only needs to copy pointers and adjust reference counts appropriately
+(instead of actually copying any data).
+
+The IO buffer abstraction provides for a single writer and multiple
+readers. In order for the readers to have no knowledge of each other,
+they manipulate IO buffers through the\ ``TSIOBufferReader`` data
+structure. Since only a single writer is allowed, there is no
+corresponding ``TSIOBufferWriter`` data structure. The writer simply
+modifies the IO buffer directly.
+
diff --git a/doc/sdk/http-transformation-plugin/append-transform-plugin.en.rst b/doc/sdk/http-transformation-plugin/append-transform-plugin.en.rst
new file mode 100644
index 00000000..47c65894
--- /dev/null
+++ b/doc/sdk/http-transformation-plugin/append-transform-plugin.en.rst
@@ -0,0 +1,144 @@
+The Append-Transform Plugin
+***************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The append-transform plugin appends text to the body of an HTTP
+response. It obtains this text from a file; the name of the file
+containing the append text is a parameter you specify in
+``plugin.config``, as follows:
+
+::
+
+    append-transform.so path/to/file
+
+The append-transform plugin is based on ``null-transform.c``. The only
+difference is that after the plugin feeds the document through the
+transformation, it adds text to the response.
+
+Below is a list of the functions in ``append-transform.c``, in the order
+they appear in the source code. Below each entry is a description of
+what the function does:
+
+-  **``my_data_alloc``**
+
+   Allocates and initializes a ``MyData`` structure. The plugin defines
+   a struct, ``MyData``, as follows:
+
+   .. code-block:: c
+
+       typedef struct {
+           TSVIO output_vio;
+           TSIOBuffer output_buffer;
+           TSIOBufferReader output_reader;
+           int append_needed;
+       } MyData;
+
+   The ``MyData`` structure is used to represent data that the
+   transformation (vconnection) needs. The transformation's data pointer
+   is set to a ``MyData`` pointer using ``TSContDataSet`` in the
+   ``handle_transform`` routine.
+
+-  **``my_data_destroy``**
+
+   Destroys objects of type ``MyData``. To deallocate the transform's
+   data, the ``append_transform`` routine (see below) calls
+   ``my_data_destroy`` when the transformation is complete.
+
+-  **``handle_transform``**
+
+   This function does the actual data transformation. The transformation
+   is created in ``transform_add`` (see below). ``handle_transform`` is
+   called by ``append_transform``.
+
+-  **``append_transform``**
+
+   This is the handler function for the transformation vconnection
+   created in ``transform_add``. It is the implementation of the
+   vconnection.
+
+   -  If the transformation vconnection has been closed, then
+      ``append_transform`` calls ``my_data_destroy`` to destroy the
+      vonnection.
+
+   -  If ``append_transform`` receives an error event, then it calls
+      back the continuation to let it know it has completed the write
+      operation.
+
+   -  If it receives a ``WRITE_COMPLETE`` event, then it shuts down the
+      write portion of its vconnection.
+
+   -  If it receives a ``WRITE_READY`` or any other event (such as
+      ``TS_HTTP_RESPONSE_TRANSFORM_HOOK``), then it calls
+      ``handle_transform`` to attempt to transform more data.
+
+-  **``transformable``**
+
+   The plugin transforms only documents that have a content type of
+   ``text/html``. This function examines the ``Content-Type`` MIME
+   header field in the response header. If the value of the MIME field
+   is ``text/html``, then the function returns 1; otherwise, it returns
+   zero.
+
+-  **``transform_add``**
+
+   Creates the transformation for the current transaction and sets up a
+   transformation hook. The handler function for the transformation is
+   ``append_transform``.
+
+-  **``transform_plugin``**
+
+   This is the handler function for the main continuation for the
+   plugin. Traffic Server calls this function whenever it reads an HTTP
+   response header. ``transform_plugin`` does the following:
+
+   -  Gets a handle to the HTTP transaction being processed
+
+   -  Calls ``transformable`` to determine whether the response document
+      content is of type ``text/html``
+
+   -  If the content is transformable, then it calls ``transform_add``
+      to create the transformation.
+
+   -  Calls ``TSHttpTxnReenable`` to continue the transaction
+
+-  **``load``**
+
+   Opens the file containing the text to be appended and loads the
+   contents of the file into an ``TSIOBuffer`` called ``append_buffer``.
+
+-  **``TSPluginInit``**
+
+   Does the following:
+
+   -  Checks to make sure that the required configuration information
+      (the append text filename) is entered in ``plugin.config``
+      correctly.
+
+   -  If there is a filename, then ``TSPluginInit`` calls load to load
+      the text.
+
+   -  Creates a continuation for the plugin. The handler for this
+      continuation is ``transform_plugin``.
+
+   -  Adds the plugin's continuation to
+      ``TS_HTTP_READ_RESPONSE_HDR_HOOK``. In other words, it sets up a
+      callback of the plugin's continuation when Traffic Server reads
+      HTTP response headers.
+
+
diff --git a/doc/sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst b/doc/sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst
new file mode 100644
index 00000000..ee6859be
--- /dev/null
+++ b/doc/sdk/http-transformation-plugin/sample-buffered-null-transformation-plugin.en.rst
@@ -0,0 +1,212 @@
+The Sample Buffered Null Transform Plugin
+*****************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The buffered null transform, ``bnull-transform.c``, reads the response
+content into a buffer and then writes the full buffer out to the client.
+Many examples of transformations, such as compression, require you to
+gather the full response content in order to perform the transformation.
+
+The buffered null transform uses a state variable to keep track of when
+it is (a) reading data into the buffer and (b) writing the data from the
+buffer to the downstream vconnection.
+
+The following is a step-by-step walk through the buffered null
+transform:
+
+#.  Gets a handle to HTTP transactions.
+
+    .. code-block:: c
+
+       void
+          TSPluginInit (int argc, const char *argv[]) {
+             TSHttpHookAdd (TS_HTTP_READ_RESPONSE_HDR_HOOK,
+                TSContCreate (transform_plugin, NULL)); }
+
+    With this ``TSPluginInit`` routine, the plugin is called back every
+    time Traffic Server reads a response header.
+
+#.  Checks to see if the transaction response is transformable.
+
+    .. code-block:: c
+
+       static int transform_plugin (TSCont contp, TSEvent event, void *edata) {
+          TSHttpTxn txnp = (TSHttpTxn) edata;
+          switch (event) {
+             case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+                if (transformable (txnp)) {
+                   transform_add (txnp);
+                }
+
+    The default behavior for transformations is to cache the transformed
+    content (if desired, you also can tell Traffic Server to cache
+    untransformed content). Therefore, only responses received directly
+    from an origin server need to be transformed. Objects served from
+    the cache are already transformed. To determine whether the response
+    is from the origin server, the routine transformable checks the
+    response header for the "200 OK" server response.
+
+    .. code-block:: c
+
+       {
+          TSMBuffer bufp;
+          TSMLoc hdr_loc;
+          TSHttpStatus resp_status;
+
+          TSHttpTxnServerRespGet (txnp, &bufp, &hdr_loc);
+
+          if(TS_HTTP_STATUS_OK==
+             (resp_status=TSHttpHdrStatusGet(bufp,hdr_loc)))
+          {
+             return 1;
+          }
+          else {
+             return 0;
+          }
+       }
+
+#. If the response is transformable, then the plugin creates a
+   transformation vconnection that gets called back when the response
+   data is ready to be transformed (as it is streaming from the origin
+   server).
+
+   .. code-block:: c
+
+      static void transform_add (TSHttpTxn txnp)
+      {
+         TSVConn connp;
+         connp = TSTransformCreate (bnull_transform, txnp);
+         TSHttpTxnHookAdd (txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+      }
+
+   The previous code fragment shows that the handler function for the
+   transformation vconnection is ``bnull_transform``.
+
+#. The ``bnull_transform`` function has to handle ``ERROR``,
+   ``WRITE_COMPLETE``, ``WRITE_READY``, and ``IMMEDIATE`` events. If
+   the transform is just beginning, the event received is probably
+   ``IMMEDIATE``. The ``bnull_transform`` function calls
+   ``handle_transform`` to handle ``WRITE_READY`` and ``IMMEDIATE``.
+
+#. The ``handle_transform`` function examines the data parameter for
+   the continuation passed to it (the continuation passed to
+   ``handle_transform`` is the transformation vconnection). The data
+   structure keeps track of two states: copying the data into the
+   buffer (``STATE_BUFFER_DATA``) and writing the contents of the
+   buffer to the output vconnection (``STATE_OUTPUT_DATA``).
+
+#. Get a handle to the input VIO (see the ``handle_buffering``
+   function). ``input_vio = TSVConnWriteVIOGet (contp);`` This is so
+   that the transformation can get information about the upstream
+   vconnection's write operation to the input buffer.
+
+#. Copy data from the input buffer to the output buffer. See the
+   ``handle_buffering`` function for the following code fragment:
+
+   .. code-block:: c
+
+      TSIOBufferCopy (data->output_buffer,
+         TSVIOReaderGet (write_vio), towrite, 0);
+
+#. Tell the input buffer that the transformation has read the data. See
+   the ``handle_buffering`` function for the following code fragment:
+
+   .. code-block:: c
+
+      TSIOBufferReaderConsume (TSVIOReaderGet (write_vio), towrite);
+
+#. Modify the input VIO to tell it how much data has been read
+   (increase the value of ``ndone``). See the ``handle_buffering``
+   function for the following code fragment:
+
+   .. code-block:: c
+
+      TSVIONDoneSet (write_vio, TSVIONDoneGet (write_vio) + towrite); }
+
+#. If there is more data left to read ( if ndone < nbytes), then the
+   ``handle_buffering`` function wakes up the upstream vconnection by
+   sending it ``WRITE_READY``:
+
+   .. code-block:: c
+
+      if (TSVIONTodoGet (write_vio) > 0) {
+         if (towrite > 0) {
+            TSContCall (TSVIOContGet (write_vio),
+               TS_EVENT_VCONN_WRITE_READY, write_vio);
+         }
+      } else {
+
+   The process of passing data through the transformation is
+   illustrated in the following diagram. The transformation sends
+   ``WRITE_READY`` events when it needs more data; when data is
+   available, the upstream vconnection reenables the transformation
+   with an ``IMMEDIATE`` event.
+
+   The following diagram illustrates the read from an input
+   vconnection:
+
+   **Reading Data Into the Buffer (the ``STATE_BUFFER_DATA`` State)**
+   {#ReadingDataIntoBuffer}
+
+   .. figure:: /static/images/sdk/vconn_buffer.jpg
+      :alt: Reading Data Into the Buffer the STATE\_BUFFER\_DATA State
+
+      Reading Data Into the Buffer the STATE\_BUFFER\_DATA State
+
+#. When the data is read into the output buffer, the
+   ``handle_buffering`` function sets the state of the transformation's
+   data structure to ``STATE_OUTPUT_DATA`` and calls the upstream
+   vconnection back with the ``WRITE_COMPLETE`` event.
+
+   .. code-block:: c
+
+      data->state = STATE_OUTPUT_DATA;
+      TSContCall (TSVIOContGet (write_vio),
+         TS_EVENT_VCONN_WRITE_COMPLETE, write_vio);
+
+#. The upstream vconnection will probably shut down the write operation
+   when it receives the ``WRITE_COMPLETE`` event. The handler function
+   of the transformation, ``bnull_transform``, receives an
+   ``IMMEDIATE`` event and calls the ``handle_transform`` function.
+   This time, the state is ``STATE_OUTPUT_DATA``, so
+   ``handle_transform`` calls ``handle_output``.
+
+#. The ``handle_output`` function gets a handle to the output
+   vconnection: ``output_conn = TSTransformOutputVConnGet (contp);``
+
+#. The ``handle_output`` function writes the buffer to the output
+   vconnection:
+
+   .. code-block:: c
+
+      data->output_vio =
+         TSVConnWrite (output_conn, contp, data->output_reader,
+         TSIOBufferReaderAvail (data->output_reader) );
+
+   The following diagram illustrates the write to the output
+   vconnection:
+
+   **Writing the Buffered Data to the Output Vconnection**
+   {#WritingBufferedtDataIntoVConnection}
+
+   .. figure:: /static/images/sdk/vconn_buf_output.jpg
+      :alt: Writing the Buffered Data to the Output Vconnection
+
+      Writing the Buffered Data to the Output Vconnection
+
diff --git a/doc/sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst b/doc/sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst
new file mode 100644
index 00000000..603470cd
--- /dev/null
+++ b/doc/sdk/http-transformation-plugin/sample-null-transformation-plugin.en.rst
@@ -0,0 +1,217 @@
+The Sample Null Transform Plugin
+********************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This section provides a step-by-step description of what the null
+transform plugin does, along with sections of code that apply. For
+context, you can find each code snippet in the complete source code.
+Some of the error checking details are left out - to give the
+description a step-by-step flow, only the highlights of the transform
+are included.
+
+Below is an overview of the null transform plugin:
+
+1.  Gets a handle to HTTP transactions.
+
+    .. code-block:: c
+
+        void
+        TSPluginInit (int argc, const char *argv[]) {
+            TSHttpHookAdd (TS_HTTP_READ_RESPONSE_HDR_HOOK,
+                    TSContCreate (transform_plugin, NULL));
+
+    With this ``TSPluginInit`` routine, the plugin is called back every
+    time Traffic Server reads a response header.
+
+2.  Checks to see if the transaction response is transformable.
+
+    .. code-block:: c
+
+        static int transform_plugin (TSCont contp, TSEvent event, void *edata) {
+            TSHttpTxn txnp = (TSHttpTxn) edata;
+            switch (event) {
+                case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+                    if (transformable (txnp)) {
+                        transform_add (txnp);
+                    }
+
+    The default behavior for transformations is to cache the transformed
+    content (you can also tell Traffic Server to cache untransformed
+    content, if you want). Therefore, only responses received directly
+    from an origin server need to be transformed. Objects served from
+    cache are already transformed. To determine whether the response is
+    from the origin server, the routine ``transformable`` checks the
+    response header for the "200 OK" server response.
+
+    .. code-block:: c
+
+        static int transformable (TSHttpTxn txnp)
+        {
+            TSMBuffer bufp;
+            TSMLoc hdr_loc;
+            TSHttpStatus resp_status;
+            TSHttpTxnServerRespGet (txnp, &bufp, &hdr_loc);
+
+            if (TS_HTTP_STATUS_OK == (resp_status =
+                        TSHttpHdrStatusGet (bufp, hdr_loc)) ) {
+                return 1;
+            } else {
+                return 0;
+            }
+        }
+
+3.  If the response is transformable, then the plugin creates a
+    transformation vconnection that gets called back when the response
+    data is ready to be transformed (as it is streaming from the origin
+    server).
+
+    .. code-block:: c
+
+        static void transform_add (TSHttpTxn txnp)
+        {
+            TSVConn connp;
+            connp = TSTransformCreate (null_transform, txnp);
+            TSHttpTxnHookAdd (txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+        }
+
+    The previous code fragment shows that the handler function for the
+    transformation vconnection is ``null_transform``.
+
+4.  Get a handle to the output vconnection (that receives data from the
+    tranformation).
+
+    .. code-block:: c
+
+        output_conn = TSTransformOutputVConnGet (con
+
+5.  Get a handle to the input VIO. (See the ``handle_transform``
+    function.)
+
+    .. code-block:: c
+
+        input_vio = TSVConnWriteVIOGet (contp);
+
+    This is so that the transformation can get information about the
+    upstream vconnection's write operation to the input buffer.
+
+6.  Initiate a write to the output vconnection of the specified number
+    of bytes. When the write is initiated, the transformation expects to
+    receive ``WRITE_READY``, ``WRITE_COMPLETE``, or ``ERROR`` events
+    from the output vconnection. See the ``handle_transform`` function
+    for the following code fragment:
+
+    .. code-block:: c
+
+        data->output_vio = TSVConnWrite (output_conn, contp,
+            data->output_reader, TSVIONBytesGet (input_vio));
+
+7.  Copy data from the input buffer to the output buffer. See the
+    ``handle_transform`` function for the following code fragment:
+
+    .. code-block:: c
+
+        TSIOBufferCopy (TSVIOBufferGet (data->output_vio),
+                TSVIOReaderGet (input_vio), towrite, 0);
+
+8.  Tell the input buffer that the transformation has read the data. See
+    the ``handle_transform`` function for the following code fragment:
+
+    .. code-block:: c
+
+        TSIOBufferReaderConsume (TSVIOReaderGet (input_vio), towrite);
+
+9.  Modify the input VIO to tell it how much data has been read
+    (increase the value of ``ndone``). See the ``handle_transform``
+    function for the following code fragment:
+
+    .. code-block:: c
+
+        TSVIONDoneSet (input_vio, TSVIONDoneGet (input_vio) + towrite);
+
+10. If there is more data left to read ( if ndone < nbytes), then the
+    ``handle_transform`` function wakes up the downstream vconnection
+    with a reenable and wakes up the upstream vconnection by sending it
+    ``WRITE_READY``:
+
+    .. code-block:: c
+
+        if (TSVIONTodoGet (input_vio) > 0) {
+            if (towrite > 0) {
+                TSVIOReenable (data->output_vio);
+
+                TSContCall (TSVIOContGet (input_vio),
+                        TS_EVENT_VCONN_WRITE_READY, input_vio);
+            }
+            } else {
+
+    The process of passing data through the transformation is
+    illustrated in the following diagram. The downstream vconnections
+    send ``WRITE_READY`` events when they need more data; when data is
+    available, the upstream vconnections reenable the downstream
+    vconnections. In this instance, the ``TSVIOReenable`` function sends
+    ``TS_EVENT_IMMEDIATE``.
+
+    **Passing Data Through a Transformation**
+    {#PassingDataThroughaTransformation}
+
+.. figure:: /static/images/sdk/vconnection1.jpg
+      :alt: Passing Data Through a Transformation
+
+      Passing Data Through a Transformation
+
+11. If the ``handle_transform`` function finds there is no more data to
+    read, then it sets ``nbytes`` to ``ndone`` on the output
+    (downstream) VIO and wakes up the output vconnection with a
+    reenable. It then triggers the end of the write operation from the
+    upstream vconnection by sending the upstream vconnection a
+    ``WRITE_COMPLETE`` event.
+
+    .. code-block:: c
+
+      TSVIONBytesSet (data->output_vio, TSVIONDoneGet (input_vio));
+         TSVIOReenable (data->output_vio);
+         TSContCall (TSVIOContGet (input_vio),
+            TS_EVENT_VCONN_WRITE_COMPLETE, input_vio);
+      }
+
+    When the upstream vconnection receives the ``WRITE_COMPLETE`` event,
+    it will probably shut down the write operation.
+
+12. Similarly, when the downstream vconnection has consumed all of the
+    data, it sends the transformation a ``WRITE_COMPLETE`` event. The
+    transformation handles this event with a shut down (the
+    transformation shuts down the write operation to the downstream
+    vconnection). See the ``null_plugin`` function for the following
+    code fragment:
+
+    .. code-block:: c
+
+        case TS_EVENT_VCONN_WRITE_COMPLETE:
+            TSVConnShutdown (TSTransformOutputVConnGet (contp), 0, 1
+            break;
+
+    The following diagram illustrates the flow of events:
+
+    **Ending the Transformation** {#EndingTransformation}
+
+    .. figure:: /static/images/sdk/vconnection2.jpg
+       :alt: Ending the Transformation
+
+       Ending the Transformation
+
diff --git a/doc/sdk/index.en.rst b/doc/sdk/index.en.rst
new file mode 100644
index 00000000..7a158d92
--- /dev/null
+++ b/doc/sdk/index.en.rst
@@ -0,0 +1,69 @@
+.. _programmers-guide:
+
+Programmers' Guide
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+*In progress*
+
+**Abstract**
+
+The *Traffic Server Software Developers Kit* shows you how to create
+plugins using the Traffic Server SDK.
+
+Introduction
+--------------
+
+This documentation is a work in progress. It was originally written for
+a previous, commercially-available version of Traffic Server that
+supported different operating systems and more functions than the
+current version. As a result, some of the sections may refer to
+functionality that no longer exists.
+
+If you find any such issues, you may want to submit a `bug or a
+patch <https://issues.apache.org/jira/secure/CreateIssue!default.jspa?pid=12310963>`__.
+We also have a Wiki page explaining how to `create useful bug reports
+<https://cwiki.apache.org/confluence/display/TS/Filing+useful+bug+reports>`__.
+We encourage everyone to file tickets, early and often. Looking for existing,
+duplicate bugs is encouraged, but not required.
+
+Contents:
+
+.. toctree::
+  :maxdepth: 2
+
+  preface.en
+  getting-started.en
+  how-to-create-trafficserver-plugins.en
+  remap-plugin.en
+  header-based-plugin-examples.en
+  http-transformation-plugin.en
+  new-protocol-plugins.en
+  http-hooks-and-transactions.en
+  misc-interface-guide.en
+  http-headers.en
+  mutex-guide.en
+  continuations.en
+  plugin-configurations.en
+  actions-guide.en
+  io-guide.en
+  plugin-management.en
+  adding-statistics.en
+  sample-source-code.en
+  troubleshooting-tips.en
diff --git a/doc/sdk/io-guide.en.rst b/doc/sdk/io-guide.en.rst
new file mode 100644
index 00000000..faece66c
--- /dev/null
+++ b/doc/sdk/io-guide.en.rst
@@ -0,0 +1,192 @@
+IO Guide
+********
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This chapter contains the following sections:
+
+.. toctree::
+   :maxdepth: 2
+
+   io-guide/net-vconnections.en
+   io-guide/transformations.en
+   io-guide/vios.en
+   io-guide/io-buffers.en
+   io-guide/guide-to-cache-api.en
+
+
+Vconnections
+------------
+
+Vconnections: a User's Perspective
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To use a vconnection, a user must first get a handle to one. This is
+usually accomplished by having it handed to the user; the user may also
+simply issue a call that creates a vconnection (such as
+``TSNetConnect)``. In the case of transform plugins, the plugin creates
+a transformation vconnection viav ``TSTransformCreate`` and then
+accesses the output vconnection using ``TSTransformOutputVConnGet``.
+
+After getting a handle to a vconnection, the user can then issue a read
+or write call. It's important to note that not all vconnections support
+both reading and writing - as of yet, there has not been a need to query
+a vconnection about whether it can perform a read or write operation.
+That ability should be obvious from context.
+
+To issue a read or write operation, a user calls ``TSVConnRead`` or
+``TSVConnWrite``. These two operations both return ``VIO (TSVIO)``. The
+VIO describes the operation being performed and how much progress has
+been made. Transform plugins initiate output to the downstream
+vconnection by calling ``TSVConnWrite``.
+
+A vconnection read or write operation is different from a normal UNIX
+``read(2)`` or ``write(2)`` operation. Specifically, the vconnection
+operation can specify more data to be read or written than exists in the
+buffer handed to the operation. For example, it's typical to issue a
+read for ``INT64_MAX`` (9 quintillion) bytes from a network vconnection
+in order to read all the data from the network connection until the end
+of stream is reached. This contrasts with the usual UNIX fashion of
+issuing repeated calls to ``read(2)`` until one of the calls finally
+returns ``0`` to indicate the end of stream was reached (indeed, the
+underlying implementation of vconnections on UNIX still does issue those
+calls to ``read(2)``, but the interface does not expose that detail).
+
+At most, a given vconnection can have one read operation and one write
+operation being performed on it. This is restricted both by design and
+common sense: if two write operations were performed on a single
+vconnection, then the user would not be able to specify which should
+occur first and the output would occur in an intermingled fashion. Note
+that both a read operation and a write operation can happen on a single
+vconnection at the same time; the restriction is for more than one
+operation of the same type.
+
+One obvious issue is that the buffer passed to ``TSVConnRead`` and
+``TSVConnWrite`` won't be large enough - there is no reasonable way to
+make a buffer that can hold ``INT64_MAX`` (9 quintillion) bytes! The
+secret is that vconnections engage in a protocol whereby they signal to
+the user (via the continuation passed to ``TSVConnRead`` and
+``TSVConnWrite``) that they have emptied the buffers passed to them and
+are ready for more data. When this occurs, it is up to the user to add
+more data to the buffers (or wait for more data to be added) and then
+wake up the vconnection by calling ``TSVIOReenable`` on the VIO
+describing the operation. ``TSVIOReenable`` specifies that the buffer
+for the operation has been modified and that the vconnection should
+reexamine it to see if it can make further progress.
+
+The null transform plugin provides an example of how this is done. Below
+is a prototype for ``TSVConnWrite``:
+
+.. code-block:: c
+
+     TSVIO TSVConnWrite (TSVConn connp, TSCont contp, TSIOBufferReader readerp, int nbytes)
+
+The ``connp`` is the vconnection the user is writing to and ``contp`` is
+the "user" - i.e., the continuation that ``connp`` calls back when it
+has emptied its buffer and is ready for more data.
+
+The call made in the null transform plugin is:
+
+.. code-block:: c
+
+      TSVConnWrite (output_conn, contp, data->output_reader, TSVIONBytesGet (input_vio));
+
+In the example above, ``contp`` is the transformation vconnection that
+is writing to the output vconnection. The number of bytes to be written
+is obtained from ``input_vio`` by ``TSVIONBytesGet``.
+
+When a vconnection calls back its user to indicate that it wants more
+data (or when some other condition has occurred), it issues a call to
+``TSContCall``. It passes the ``TSVIO`` describing the operation as the
+data parameter, and one of the values below as the event parameter.
+
+``TS_EVENT_ERROR``
+    Indicates an error has occurred on the vconnection. This will happen
+    for network IO if the underlying ``read(2)`` or ``write(2)`` call
+    returns an error.
+
+``TS_EVENT_VCONN_READ_READY``
+    The vconnection has placed data in the buffer passed to an
+    ``TSVConnRead`` operation and it would like to do more IO, but the
+    buffer is now full. When the user consumes the data from the buffer,
+    this should re-enable the VIO so it indicates to the vconnection
+    that the buffer has been modified.
+
+``TS_EVENT_VCONN_WRITE_READY``
+    The vconnection has removed data from the buffer passed to an
+    ``TSVConnWrite`` operation and it would like to do more IO, but the
+    buffer does not have enough data in it. When placing more data in
+    the buffer, the user should re-enable the VIO so it indicates to the
+    vconnection that the buffer has been modified.
+
+``TS_EVENT_VCONN_READ_COMPLETE``
+    The vconnection has read all the bytes specified by an
+    ``TSVConnRead`` operation. The vconnection can now be used to
+    initiate a new IO operation.
+
+``TS_EVENT_VCONN_WRITE_COMPLETE``
+    The vconnection has written all the bytes specified by an
+    ``TSVConnWrite`` operation and can now be used to initiate a new IO
+    operation.
+
+``TS_EVENT_VCONN_EOS``
+    An attempt was made to read past the end of the stream of bytes
+    during the handling of an ``TSVConnRead`` operation. This event
+    occurs when the number of bytes available for reading from a
+    vconnection is less than the number of bytes the user specifies
+    should be read from the vconnection in a call to ``TSVConnRead``. A
+    common case where this occurs is when the user specifies that
+    ``INT64_MAX`` bytes are to be read from a network connection.
+
+For example: the null transform plugin's transformation receives
+``TS_EVENT_VCONN_WRITE_READY`` and ``TS_EVENT_VCONN_WRITE_COMPLETE``
+events from the downstream vconnection as a result of the call to
+``TSVConnWrite``.
+
+After using a vconnection, the user must call ``TSVConnClose`` or
+``TSVConnAbort``. While both calls indicate that the vconnection can
+destroy itself, ``TSVConnAbort`` should be used when the connection is
+being closed abnormally. After a call to ``TSVConnClose`` or
+``TSVConnAbort``, the user will not be called back by the vconnection
+again.
+
+Sometimes it's desirable to simply close down the write portion of a
+connection while keeping the read portion open. This can be accomplished
+via the ``TSVConnShutdown`` function, which shuts down either the read
+or write portion of a vconnection. *Shutdown* means that the vconnection
+will no longer call back the user with events for the portion of the
+connection that was shut down. For example: if the user shuts down the
+write portion of a connection, then the ``TS_EVENT_VCONN_WRITE_READY``
+or ``TS_EVENT_VCONN_WRITE_COMPLETE`` events will not be produced. In the
+null transform plugin, the write operation is shut down with a call to
+``TSVConnShutdown``. To learn how vconnections are used in
+transformation plugins, see :ref:`Writing Content Transform
+Plugins <WritingContentTransformPlugin>`.
+
+The vconnection functions are listed below:
+
+-  :c:func:`TSVConnAbort`
+-  :c:func:`TSVConnClose`
+-  :c:func:`TSVConnClosedGet`
+-  :c:func:`TSVConnRead`
+-  :c:func:`TSVConnReadVIOGet`
+-  :c:func:`TSVConnShutdown`
+-  :c:func:`TSVConnWrite`
+-  :c:func:`TSVConnWriteVIOGet`
+
+
diff --git a/doc/sdk/io-guide/guide-to-cache-api.en.rst b/doc/sdk/io-guide/guide-to-cache-api.en.rst
new file mode 100644
index 00000000..29440440
--- /dev/null
+++ b/doc/sdk/io-guide/guide-to-cache-api.en.rst
@@ -0,0 +1,68 @@
+Guide to the Cache API
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   guide-to-cache-api/how-to-do-a-cache-write.en
+   guide-to-cache-api/how-to-do-a-cache-remove.en
+   guide-to-cache-api/errors.en
+   guide-to-cache-api/example.en
+
+
+The cache API enables plugins to read, write, and remove objects in the
+Traffic Server cache. All cache APIs are keyed by an object called an
+``TSCacheKey``; cache keys are created via ``TSCacheKeyCreate``; keys
+are destroyed via ``TSCacheKeyDestroy``. Use ``TSCacheKeyDigestSet`` to
+set the hash of the cache key.
+
+Note that the cache APIs differentiate between HTTP data and plugin
+data. The cache APIs do not allow you to write HTTP docs in the cache;
+you can only write plugin-specific data (a specific type of data that
+differs from the HTTP type).
+
+**Example:**
+
+.. code-block:: c
+
+        const unsigned char *key_name = "example key name";
+
+        TSCacheKey key;
+        TSCacheKeyCreate (&key);
+        TSCacheKeyDigestSet (key, (unsigned char *) key_name , strlen(key_name));
+        TSCacheKeyDestroy (key);
+
+How to Do a Cache Read
+~~~~~~~~~~~~~~~~~~~~~~
+
+``TSCacheRead`` does not really read - it is used for lookups (see the
+sample Protocol plugin). Possible callback events include:
+
+-  ``TS_EVENT_CACHE_OPEN_READ`` - indicates the lookup was successful.
+   The data passed back along with this event is a cache vconnection
+   that can be used to initiate a read on this keyed data.
+
+-  ``TS_EVENT_CACHE_OPEN_READ_FAILED`` - indicates the lookup was
+   unsuccessful. Reasons for this event could be that another
+   continuation is writing to that cache location, or the cache key
+   doesn't refer to a cached resource. Data payload for this event
+   indicates the possible reason the read failed (``TSCacheError``).
+
+
diff --git a/doc/sdk/io-guide/guide-to-cache-api/errors.en.rst b/doc/sdk/io-guide/guide-to-cache-api/errors.en.rst
new file mode 100644
index 00000000..f45866b9
--- /dev/null
+++ b/doc/sdk/io-guide/guide-to-cache-api/errors.en.rst
@@ -0,0 +1,31 @@
+Errors
+******
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Errors pertaining to the failure of various cache operations are
+indicated by ``TSCacheError`` (enumeration). They are as follows:
+
+-  ``TS_CACHE_ERROR_NO_DOC`` - the key does not match a cached resource
+
+-  ``TS_CACHE_ERROR_DOC_BUSY`` - e.g, another continuation could be
+   writing to the cache location
+
+-  ``TS_CACHE_ERROR_NOT_READY`` - the cache is not ready
+
+
diff --git a/doc/sdk/io-guide/guide-to-cache-api/example.en.rst b/doc/sdk/io-guide/guide-to-cache-api/example.en.rst
new file mode 100644
index 00000000..0179de6d
--- /dev/null
+++ b/doc/sdk/io-guide/guide-to-cache-api/example.en.rst
@@ -0,0 +1,73 @@
+Example
+*******
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+In the example below, suppose there is a cache hit and the cache returns
+a vconnection that enables you to read the document from cache. To do
+this, you need to prepare a buffer (``cache_bufp``) to hold the
+document; meanwhile, use ``TSVConnCachedObjectSizeGet`` to find out the
+actual size of the document (``content_length``). Then, issue
+``TSVConnRead`` to read the document with the total data length required
+as ``content_length``. Assume the following data:
+
+.. code-block:: c
+
+        TSIOBuffer       cache_bufp = TSIOBufferCreate ();
+        TSIOBufferReader cache_readerp = TSIOBufferReaderAlloc (out_bufp);
+        TSVConn          cache_vconnp = NULL;
+        TSVIO            cache_vio = NULL;
+        int               content_length = 0;
+
+In the ``TS_CACHE_OPEN_READ`` handler:
+
+.. code-block:: c
+
+    cache_vconnp = (TSVConn) data;
+        TSVConnCachedObjectSizeGet (cache_vconnp, &content_length);
+        cache_vio = TSVConnRead (cache_vconn, contp, cache_bufp, content_length);
+
+In the ``TS_EVENT_VCONN_READ_READY`` handler:
+
+.. code-block:: c
+
+    (usual VCONN_READ_READY handler logic)
+    int nbytes = TSVIONBytesGet (cache_vio);
+    int ntodo  = TSVIONTodoGet (cache_vio);
+    int ndone  = TSVIONDoneGet (cache_vio);
+    (consume data in cache_bufp)
+    TSVIOReenable (cache_vio);
+
+Do not try to get continuations or VIOs from ``TSVConn`` objects for
+cache vconnections. Also note that the following APIs can only be used
+on transformation vconnections and must not be used on cache
+vconnections or net vconnections:
+
+-  ``TSVConnWriteVIOGet``
+
+-  ``TSVConnReadVIOGet``
+
+-  ``TSVConnClosedGet``
+
+APIs such as ``TSVConnRead``, ``TSVConnWrite``, ``TSVConnClose``,
+``TSVConnAbort``, and ``TSVConnShutdown`` can be used on any kind of
+vconnections.
+
+When you are finished:
+
+``TSCacheKeyDestroy (key);``
diff --git a/doc/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst b/doc/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst
new file mode 100644
index 00000000..0edadf6e
--- /dev/null
+++ b/doc/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-remove.en.rst
@@ -0,0 +1,31 @@
+How to Do a Cache Remove
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Use ``TSCacheRemove`` to remove items from the cache. Possible callback
+events include:
+
+-  ``TS_EVENT_CACHE_REMOVE`` - the item was removed. There is no data
+   payload for this event.
+
+-  ``TS_EVENT_CACHE_REMOVE_FAILED`` - indicates the cache was unable to
+   remove the item identified by the cache key. ``TSCacheError`` data
+   indicates why the remove failed.
+
+
diff --git a/doc/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst b/doc/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst
new file mode 100644
index 00000000..1a9eacc8
--- /dev/null
+++ b/doc/sdk/io-guide/guide-to-cache-api/how-to-do-a-cache-write.en.rst
@@ -0,0 +1,34 @@
+How to Do a Cache Write
+***********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Use ``TSCacheWrite`` to write to a cache (see the `sample Protocol
+plugin <../../new-protocol-plugins#AboutSampleProtocol>`__). Possible
+callback events include:
+
+-  ``TS_EVENT_CACHE_WRITE_READ`` - indicates the lookup was successful.
+   The data passed back along with this event is a cache vconnection
+   that can be used to initiate a cache write.
+
+-  ``TS_EVENT_CACHE_OPEN_WRITE_FAILED`` - event returned when another
+   continuation is currently writing to this location in the cache. Data
+   payload for this event indicates the possible reason for the write
+   failing (``TSCacheError``).
+
+
diff --git a/doc/sdk/io-guide/io-buffers.en.rst b/doc/sdk/io-guide/io-buffers.en.rst
new file mode 100644
index 00000000..a43bab96
--- /dev/null
+++ b/doc/sdk/io-guide/io-buffers.en.rst
@@ -0,0 +1,52 @@
+IO Buffers
+**********
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The IO buffer data structure is the building block of the vconnection
+abstraction. An **IO buffer** (``TSIOBuffer``) is composed of a list of
+buffer blocks that point to buffer data. Both the buffer block
+(``TSIOBufferBlock``) and buffer data (``TSIOBufferData``) data
+structures are reference-counted, so they can reside in multiple buffers
+at the same time. This makes it extremely efficient to copy data from
+one IO buffer to another via ``TSIOBufferCopy``, since Traffic Server
+must only copy pointers and adjust reference counts appropriately (and
+doesn't actually copy any data).
+
+The IO buffer abstraction provides for a single writer and multiple
+readers. In order for the readers to have no knowledge of each other,
+they manipulate IO buffers through the ``TSIOBufferReader`` data
+structure. Since only a single writer is allowed, there is no
+corresponding ``TSIOBufferWriter`` data structure. The writer simply
+modifies the IO buffer directly. To see an example that illustrates how
+to use IOBuffers, refer to the sample code in the description of
+:c:func:`TSIOBufferBlockReadStart`.
+
+Additional information about IO buffer functions:
+
+-  The ``TSIOBufferReader`` data structure tracks how much data in
+   ``TSIOBuffer`` has been read. It has an offset number of bytes that
+   is the current start point of a particular buffer reader (for every
+   read operation on an ``TSIOBuffer``, you must allocate an
+   ``TSIOBufferReader``).
+
+-  Bytes that have already been read may not necessarily be freed within
+   the ``TSIOBuffer``. To consume bytes that have been read, you must
+   call ``TSIOBufferConsume``.
+
+
diff --git a/doc/sdk/io-guide/net-vconnections.en.rst b/doc/sdk/io-guide/net-vconnections.en.rst
new file mode 100644
index 00000000..1dfe8a2b
--- /dev/null
+++ b/doc/sdk/io-guide/net-vconnections.en.rst
@@ -0,0 +1,31 @@
+Net Vconnections
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+A **network** **vconnection** (or*\* netvconnection*\ \*) is a wrapper
+around a TCP socket that enables the socket to work within the Traffic
+Server vconnection framework. See
+`vconnections <index.en.html#Vconnections>`__ for more information about
+the Traffic Server abstraction for doing asynchronous IO.
+
+The netvconnection functions are listed below:
+
+-  [dox 'TSNetAccept'] in [dox "TSNetAccept" :src\_file]
+-  [dox %TSNetConnect%] in [dox :src\_file]
+
diff --git a/doc/sdk/io-guide/transformations.en.rst b/doc/sdk/io-guide/transformations.en.rst
new file mode 100644
index 00000000..76a9c0dc
--- /dev/null
+++ b/doc/sdk/io-guide/transformations.en.rst
@@ -0,0 +1,179 @@
+Transformations
+***************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The Vconnection Implementor's View
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+A VConnection implementor writes only transformations. All other
+VConnections (net VConnections and cache VConnections) are implemented
+in iocore. As mentioned earlier, a given vconnection can have a maximum
+of one read operation and one write operation being performed on it. The
+vconnection user gets information about the operation being performed by
+examining the VIO returned by a call to ``TSVConnRead`` or
+``TSVConnWrite``. The implementor, in turn, gets a handle on the VIO
+operation by examining the VIO returned by ``TSVConnReadVIOGet`` or
+``TSVConnWriteVIOGet`` (recall that every vconnection created through
+the Traffic Server API has an associated read VIO and write VIO, even if
+it only supports reading or writing).
+
+For example, the null transform plugin's transformation examines the
+input VIO by calling:
+
+.. code-block:: c
+
+     input_vio = TSVConnWriteVIOGet (contp);
+
+where ``contp`` is the transformation.
+
+A vconnection is a continuation. This means it has a handler function
+that is run when an event is sent to it, or more accurately, when an
+event that was sent to it is received. It is the handler function's job
+to examine the event, the current state of its read VIO and write VIO,
+and any other internal state the vconnection might have and potentially
+make some progress on the IO operations.
+
+It is common for the handler function for all vconnections to look
+similar. Their basic form looks something like the code fragment below:
+
+.. code-block:: c
+
+    int
+    vconnection_handler (TSCont contp, TSEvent event, void *edata)
+    {
+    if (TSVConnClosedGet (contp)) {
+            /* Destroy any vconnection specific data here. */
+            TSContDestroy (contp);
+            return 0;
+       } else {
+            /* Handle the incoming event */
+       }
+    }
+
+This code fragment basically shows that many vconnections simply want to
+destroy themselves when they are closed. However, the situation might
+also require the vconnection to do some cleanup processing - which is
+why ``TSVConnClose`` does not simply just destroy the vconnection.
+
+Vconnections are state machines that are animated by the events they
+receive. An event is sent to the vconnection whenever an
+``TSVConnRead``, ``TSVConnWrite``, ``TSVConnClose``,
+``TSVConnShutdown``, or ``TSVIOReenable`` call is performed.
+``TSVIOReenable`` indirectly references the vconnection through a
+back-pointer in the VIO structure to the vconnection. The vconnection
+itself only knows which call was performed by examining its state and
+the state of its VIOs. For example, when ``TSVConnClose`` is called, the
+vconnection is sent an immediate event (``TS_EVENT_IMMEDIATE``). For
+every event the vconnection receives, it needs to check its closed flag
+to see if it has been closed. Similarly, when ``TSVIOReenable`` is
+called, the vconnection is sent an immediate event. For every event the
+vconnection receives, it must check its VIOs to see if the buffers have
+been modified to a state in which it can continue processing one of its
+operations.
+
+Finally, a vconnection is likely the user of other vconnections. It also
+receives events as the user of these other vconnections. When it
+receives such an event, like ``TS_EVENT_VCONN_WRITE_READY``, it might
+just enable another vconnection that's writing into the buffer used by
+the vconnection reading from it. The above description is merely
+intended to give the overall idea for what a vconnection needs to do.
+
+Transformation VConnection
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A `transformation <HTTPTransformationPlugins.html#Transformations>`__ is
+a specific type of vconnection. It supports a subset of the vconnection
+functionality that enables one or more transformations to be chained
+together. A transformation sits as a bottleneck between an input data
+source and an output data sink, which enables it to view and modify all
+the data passing through it. Alternatively, some transformations simply
+scan the data and pass it on. A common transformation is one that
+compresses data in some manner.
+
+A transformation can modify either the data stream being sent *to* an
+HTTP client (e.g. the document) or the data stream being sent *from* an
+HTTP client (e.g. post data). To do this, the transformation should hook
+on to one of the following hooks:
+
+-  ``TS_HTTP_REQUEST_TRANSFORM_HOOK``
+
+-  ``TS_HTTP_RESPONSE_TRANSFORM_HOOK``
+
+Note that because a transformation is intimately associated with a given
+transaction, it is only possible to add the hook to the transaction
+hooks - not to the global or session hooks. Transformations reside in a
+chain, so their ordering is quite easily determined: transformations
+that add themselves to the chain are simply appended to it.
+
+Data is passed in to the transformation by initiating a vconnection
+write operation on the transformation. As a consequence of this design,
+a transformation must support the vconnection write operation. In other
+words, your transformation must expect an upstream vconnection to write
+data to it. The transformation has to read the data, consume it, and
+tell the upstream vconnection it is finished by sending it an
+``TS_EVENT_WRITE_COMPLETE`` event. Transformations cannot send the
+``TS_EVENT_VCONN_WRITE_COMPLETE`` event to the upstream vconnection
+unless they are finished consuming all incoming data. If
+``TS_EVENT_VCONN_WRITE_COMPLETE`` is sent prematurely, then certain
+internal Traffic Server data structures will not be deallocated, thereby
+causing a memory leak.
+
+Here's how to make sure that all incoming data is consumed:
+
+-  After reading or copying data, make sure that you consume the data
+   and increase the value of ndone for the input VIO, as in the
+   following example taken from ``null-transform.c``:
+
+   .. code-block:: c
+
+       TSIOBufferCopy (TSVIOBufferGet (data->output_vio),
+       TSVIOReaderGet (input_vio), towrite, 0);
+       /* Tell the read buffer that we have read the data and are no longer interested in it. */
+       TSIOBufferReaderConsume (TSVIOReaderGet (input_vio), towrite);
+       /* Modify the input VIO to reflect how much has been read.*/
+       TSVIONDoneSet (input_vio, TSVIONDoneGet (input_vio) + towrite);
+
+-  Before sending ``TS_EVENT_VCONN_WRITE_COMPLETE``, your transformation
+   should check the number of bytes remaining in the upstream
+   vconnection's write VIO (input VIO) using the function
+   ``TSVIONTodoGet`` (``input_vio``). This value should go to zero when
+   all of the upstream data is consumed
+   (``TSVIONTodoGet = nbytes - ndone``). Do not send
+   ``TS_EVENT_VCONN_WRITE_COMPLETE`` events if ``TSVIONTodoGet`` is
+   greater than zero.
+-  The transformation passes data out of itself by using the output
+   vconnection retrieved by ``TSTransformOutputVConnGet``. Immediately
+   before Traffic Server initiates the write operation (which inputs
+   data into the transformation), it sets the output vconnection either
+   to the next transformation in the chain of transformations or to a
+   special terminating transformation (if it's the last transformation
+   in the chain). Since the transformation is handed ownership of the
+   output vconnection, it must close it at some point in order for it to
+   be deallocated.
+-  All of the transformations in a transformation chain share the
+   transaction's mutex. This small restriction (enforced by
+   ``TSTransformCreate``) removes many of the locking complications of
+   implementing general vconnections. For example, a transformation does
+   not have to grab its write VIO mutex before accessing its write VIO
+   because it knows it already holds the mutex.
+
+The transformation functions are: \*
+:c:func:`TSTransformCreate`
+\*
+:c:func:`TSTransformOutputVConnGet`
diff --git a/doc/sdk/io-guide/vios.en.rst b/doc/sdk/io-guide/vios.en.rst
new file mode 100644
index 00000000..b04aaefe
--- /dev/null
+++ b/doc/sdk/io-guide/vios.en.rst
@@ -0,0 +1,58 @@
+VIOs
+****
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+A **VIO**, or **virtual IO**, is a description of an IO operation that's
+currently in progress. The VIO data structure is used by vconnection
+users to determine how much progress has been made on a particular IO
+operation and to re-enable an IO operation when it stalls due to buffer
+space issues. VIOs are used by vconnection implementors to determine the
+buffer for an IO operation, how much work to do on the IO operation, and
+which continuation to call back when progress on the IO operation is
+made.
+
+The ``TSVIO`` data structure itself is opaque, but it could be defined
+as follows:
+
+.. code-block:: c
+
+    typedef struct {
+        TSCont continuation;
+        TSVConn vconnection;
+        TSIOBufferReader reader;
+        TSMutex mutex;
+        int nbytes;
+        int ndone;
+    } *TSVIO;
+
+The VIO functions below access and modify various parts of the data
+structure.
+
+-  :c:func:`TSVIOBufferGet`
+-  :c:func:`TSVIOVConnGet`
+-  :c:func:`TSVIOContGet`
+-  :c:func:`TSVIOMutexGet`
+-  :c:func:`TSVIONBytesGet`
+-  :c:func:`TSVIONBytesSet`
+-  :c:func:`TSVIONDoneGet`
+-  :c:func:`TSVIONDoneSet`
+-  :c:func:`TSVIONTodoGet`
+-  :c:func:`TSVIOReaderGet`
+-  :c:func:`TSVIOReenable`
+
diff --git a/doc/sdk/misc-interface-guide.en.rst b/doc/sdk/misc-interface-guide.en.rst
new file mode 100644
index 00000000..067068b2
--- /dev/null
+++ b/doc/sdk/misc-interface-guide.en.rst
@@ -0,0 +1,60 @@
+Miscellaneous Interface Guide
+*****************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Most of the functions in the Traffic Server API provide an interface to
+specific code modules within Traffic Server. The miscellaneous functions
+described in this chapter provide some useful general capabilities. They
+are categorized as follows:
+
+.. toctree::
+   :maxdepth: 2
+
+   misc-interface-guide/tsfopen-family.en
+   misc-interface-guide/memory-allocation.en
+   misc-interface-guide/thread-functions.en
+
+
+The C library already provides functions such as ``printf``, ``malloc``,
+and ``fopen`` to perform these tasks. The Traffic Server API versions,
+however, overcome various C library limitations (such as portability to
+all Traffic Server-support platforms).
+
+Debugging Functions
+-------------------
+
+-  :c:func:`TSDebug`
+   prints out a formatted statement if you are running Traffic Server in
+   debug mode.
+
+-  :c:func:`TSIsDebugTagSet`
+   checks to see if a debug tag is set. If the debug tag is set, then
+   Traffic Server prints out all debug statements associated with the
+   tag.
+
+-  :c:func:`TSError`
+   prints error messages to Traffic Server's error log
+
+-  :c:func:`TSAssert`
+   enables the use of assertion in a plugin.
+
+-  :c:func:`TSReleaseAssert`
+   enables the use of assertion in a plugin.
+
+
diff --git a/doc/sdk/misc-interface-guide/memory-allocation.en.rst b/doc/sdk/misc-interface-guide/memory-allocation.en.rst
new file mode 100644
index 00000000..b270feb8
--- /dev/null
+++ b/doc/sdk/misc-interface-guide/memory-allocation.en.rst
@@ -0,0 +1,46 @@
+Memory Allocation
+*****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Traffic Server provides five routines for allocating and freeing memory.
+These routines correspond to similar routines in the C library. For
+example, ``TSrealloc`` behaves like the C library routine ``realloc``.
+
+There are two main reasons for using the routines provided by Traffic
+Server. The first is portability: the Traffic Server API routines behave
+the same on all of Traffic Server's supported platforms. For example,
+``realloc`` does not accept an argument of ``NULL`` on some platforms.
+The second reason is that the Traffic Server routines actually track the
+memory allocations by file and line number. This tracking is very
+efficient, always turned on, and quite useful when tracking down memory
+leaks.
+
+The memory allocation functions are:
+
+-  :c:func:`TSfree`
+
+-  :c:func:`TSmalloc`
+
+-  :c:func:`TSrealloc`
+
+-  :c:func:`TSstrdup`
+
+-  :c:func:`TSstrndup`
+
+
diff --git a/doc/sdk/misc-interface-guide/thread-functions.en.rst b/doc/sdk/misc-interface-guide/thread-functions.en.rst
new file mode 100644
index 00000000..2e9c6da2
--- /dev/null
+++ b/doc/sdk/misc-interface-guide/thread-functions.en.rst
@@ -0,0 +1,34 @@
+Thread Functions
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The Traffic Server API thread functions enable you to create, destroy,
+and identify threads within Traffic Server. Multithreading enables a
+single program to have more than one stream of execution and to process
+more than one transaction at a time. Threads serialize their access to
+shared resources and data using the ``TSMutex`` type, as described in
+:ref:`Mutexes`.
+
+The thread functions are listed below:
+
+-  :c:func:`TSThreadCreate`
+-  :c:func:`TSThreadDestroy`
+-  :c:func:`TSThreadInit`
+-  :c:func:`TSThreadSelf`
+
diff --git a/doc/sdk/misc-interface-guide/tsfopen-family.en.rst b/doc/sdk/misc-interface-guide/tsfopen-family.en.rst
new file mode 100644
index 00000000..b0900b0c
--- /dev/null
+++ b/doc/sdk/misc-interface-guide/tsfopen-family.en.rst
@@ -0,0 +1,54 @@
+The TSfopen Family
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The ``fopen`` family of functions in C is normally used for reading
+configuration files, since ``fgets`` is an easy way to parse files on a
+line-by-line basis. The ``TSfopen`` family of functions aims at solving
+the same problem of buffered IO and line at a time IO in a
+platform-independent manner. The ``fopen`` family of C library functions
+can only open a file if a file descriptor less than 256 is available.
+Since Traffic Server often has more than 2000 file descriptors open at
+once, however, the likelihood of an available file descriptor less than
+256 very small. To solve this problem, the ``TSfopen`` family can open
+files with descriptors greater than 256.
+
+The ``TSfopen`` family of routines is not intended for high speed IO or
+flexibility - they are blocking APIs (not asynchronous). For performance
+reasons, you should not directly use these APIs on a Traffic Server
+thread (when being called back on an HTTP hook); it is better to use a
+separate thread for doing the blocking IO. The ``TSfopen`` family is
+intended for reading and writing configuration information when
+corresponding usage of the ``fopen`` family of functions is
+inappropriate due to file descriptor and portability limitations. The
+``TSfopen`` family of functions consists of the following:
+
+-  :c:func:`TSfclose`
+
+-  :c:func:`TSfflush`
+
+-  :c:func:`TSfgets`
+
+-  :c:func:`TSfopen`
+
+-  :c:func:`TSfread`
+
+-  :c:func:`TSfwrite`
+
+
diff --git a/doc/sdk/mutex-guide.en.rst b/doc/sdk/mutex-guide.en.rst
new file mode 100644
index 00000000..3dcb4619
--- /dev/null
+++ b/doc/sdk/mutex-guide.en.rst
@@ -0,0 +1,401 @@
+Mutex Guide
+***********
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Mutexes are used to lock shared data. This chapter explains how to use
+the mutex interface.
+
+.. toctree::
+   :maxdepth: 1
+
+.. _Mutexes:
+
+Mutexes
+-------
+
+A **mutex** is the basic synchronization method used within Traffic
+Server to protect data from simultaneous access by multiple threads. A
+mutex acts as a lock that protects data in one program thread from being
+accessed by another thread.
+
+The Traffic Server API provides two functions that attempt to access and
+lock the data: ``InkMutexLockTry`` and ``TSMutexLock``.
+**``TSMutexLock``** is a blocking call - if you use it, you can slow
+Traffic Server performance because transaction processing pauses until
+the mutex is unlocked. It should be used only on threads created by the
+plugin ``TSContThreadCreate``. Never use it on a continuation handler
+called back by the Cache, Net, or Event Processor. Even if the critical
+section is very small, do not use it. If you need to update a flag, then
+set a variable and/or use atomic operations. If ``TSMutexLock`` is used
+in any case other than the one recommended above, then the result will
+be a serious performance impact.
+
+**``TSMutexLockTry``**, on the other hand, attempts to lock the mutex
+only if it is unlocked (i.e., not being used by another thread). It
+should be used in all cases other than the above mentioned
+``TSMutexLock`` case. If the ``TSMutexLockTry`` attempt fails, then you
+can schedule a future attempt (which must be at least 10 milliseconds
+later).
+
+In general, you should use ``TSMutexLockTry`` instead of
+``TSMutexLock``.
+
+-  ``InkMutexLockTry`` is required if you are tying to lock Traffic
+   Server internal or system resources (such as the network, cache,
+   event processor, HTTP state machines, and IO buffers).
+
+-  ``InkMutexLockTry`` is required if you are making any blocking calls
+   (such as network, cache, or file IO calls).
+
+-  ``TSMutexLock`` might *not* be necessary if you are not making
+   blocking calls and if you are only accessing local resources.
+
+The Traffic Server API uses the ``TSMutex`` type for a mutex. There are
+two typical uses of mutex. One use is for locking global data or data
+shared by various continuations. The other typical usage is for locking
+data associated with a continuation (i.e., data that might be accessed
+by other continuations).
+
+Locking Global Data
+~~~~~~~~~~~~~~~~~~~
+
+The ``blacklist-1.c`` sample plugin implements a mutex that locks global
+data. The blacklist plugin reads its blacklisted sites from a
+configuration file; file read operations are protected by a mutex
+created in ``TSPluginInit``. The ``blacklist-1.c`` code uses
+``TSMutexLockTry`` instead of ``InkMutexLock``. For more detailed
+information, see the :ref:`blacklist-1.c` code;
+start by looking at the :c:func:`TSPluginInit` function.
+
+General guidelines for locking shared data are as follows:
+
+1. Create a mutex for the shared data with
+   :c:func:`TSMutexCreate`.
+
+2. Whenever you need to read or modify this data, first lock it by
+   calling
+   :c:func:`TSMutexLockTry`;
+   then read or modify the data.
+
+3. When you are done with the data, unlock it with
+   :c:func:`TSMutexUnlock`.
+   If you are unlocking data accessed during the processing of an HTTP
+   transaction, then you must unlock it before calling
+   :c:func:`TSHttpTxnReenable`.
+
+Protecting a Continuation's Data
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You must create a mutex to protect a continuation's data if it might be
+accessed by other continuations or processes. Here's how:
+
+1. | Create a mutex for the continuation using ``TSMutexCreate``.
+   | For example:
+
+   .. code-block:: c
+
+       TSMutex mutexp;
+       mutexp = TSMutexCreate ();
+
+2. | When you create the continuation, specify this mutex as the
+     continuation's mutex.
+   | For example:
+
+   .. code-block:: c
+
+       TSCont contp;
+       contp = TSContCreate (handler, mutexp);
+
+If any other functions want to access ``contp``'s data, then it is up to
+them to get ``contp``'s mutex (using, for example, ``TSContMutexGet``)
+to lock it. For usage, ssee the sample Protocol plugin.
+
+How to Associate a Continuation With Every HTTP Transaction
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+There could be several reasons why you'd want to create a continuation
+for each HTTP transaction that calls back your plugin.
+
+Some potential scenarios are listed below.
+
+-  You want to register hooks locally with the new continuation instead
+   of registering them globally to the continuation plugin.
+
+-  You want to store data specific to each HTTP transaction that you
+   might need to reuse across various hooks.
+
+-  You're using APIs (like ``TSHostLookup``) that will call back the
+   continuation with a certain event.
+
+How to Add the New Continuation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+A typical way of adding the new continuation is by registering the
+plugin continuation to be called back by HTTP transactions globally when
+they reach ``TS_HTTP_TXN_START_HOOK``. Refer to the example below, which
+uses a transaction-specific continuation called ``txn_contp``.
+
+.. code-block:: c
+
+           void TSPluginInit(int argc, const char *argv[]) 
+           { 
+               /* Plugin continuation */ 
+               TSCont contp; 
+               if ((contp = TSContCreate (plugin_cont_handler, NULL)) == TS_ERROR_PTR) { 
+                   LOG_ERROR("TSContCreate"); 
+               } else { 
+                   if (TSHttpHookAdd (TS_HTTP_TXN_START_HOOK, contp) == TS_ERROR) { 
+                       LOG_ERROR("TSHttpHookAdd"); 
+                   } 
+               } 
+           }
+
+In the plugin continuation handler, create the new continuation
+``txn_contp`` and then register it to be called back at
+``TS_HTTP_TXN_CLOSE_HOOK``:
+
+.. code-block:: c
+
+           static int plugin_cont_handler(TSCont contp, TSEvent event, void *edata) 
+           { 
+               TSHttpTxn txnp = (TSHttpTxn)edata; 
+               TSCont txn_contp; 
+
+               switch (event) { 
+                   case TS_EVENT_HTTP_TXN_START: 
+                       /* Create the HTTP txn continuation */ 
+                       txn_contp = TSContCreate(txn_cont_handler, NULL); 
+
+                       /* Register txn_contp to be called back when txnp reaches TS_HTTP_TXN_CLOSE_HOOK */ 
+                       if (TSHttpTxnHookAdd (txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_contp) == TS_ERROR) { 
+                           LOG_ERROR("TSHttpTxnHookAdd"); 
+                       } 
+
+                       break; 
+
+                   default: 
+                       TSAssert(!"Unexpected Event"); 
+                       break; 
+               } 
+
+               if (TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE) == TS_ERROR) { 
+                   LOG_ERROR("TSHttpTxnReenable"); 
+               } 
+
+               return 0; 
+           }
+
+Remember that the ``txn_contp`` handler must destory itself when the
+HTTP transaction is closed. If you forget to do this, then your plugin
+will have a memory leak.
+
+.. code-block:: c
+
+
+           static int txn_cont_handler(TSCont txn_contp, TSEvent event, void *edata) 
+           { 
+               TSHttpTxn txnp; 
+               switch (event) { 
+                   case TS_EVENT_HTTP_TXN_CLOSE: 
+                       txnp = (TSHttpTxn) edata; 
+                       TSContDestroy(txn_contp); 
+                       break; 
+
+                   default: 
+                       TSAssert(!"Unexpected Event"); 
+                       break; 
+               } 
+
+               if (TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE) == TS_ERROR) { 
+                   LOG_ERROR("TSHttpTxnReenable"); 
+               } 
+
+               return 0; 
+           }
+
+How to Store Data Specific to Each HTTP Transaction
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+For the example above, store the data in the ``txn_contp`` data
+structure - this means that you'll create your own data structure. Now
+suppose you want to store the state of the HTTP transaction:
+
+.. code-block:: c
+
+       typedef struct { 
+             int state; 
+         } ContData;
+
+You need to allocate the memory and initialize this structure for each
+HTTP ``txnp``. You can do that in the plugin continuation handler when
+it is called back with ``TS_EVENT_HTTP_TXN_START``
+
+.. code-block:: c
+
+           static int plugin_cont_handler(TSCont contp, TSEvent event, void *edata) 
+           { 
+               TSHttpTxn txnp = (TSHttpTxn)edata; 
+               TSCont txn_contp; 
+               ContData *contData; 
+
+               switch (event) { 
+                   case TS_EVENT_HTTP_TXN_START: 
+                       /* Create the HTTP txn continuation */ 
+                       txn_contp = TSContCreate(txn_cont_handler, NULL); 
+
+                       /* Allocate and initialize the txn_contp data */ 
+                       contData = (ContData*) TSmalloc(sizeof(ContData)); 
+                       contData->state = 0; 
+                       if (TSContDataSet(txn_contp, contData) == TS_ERROR) { 
+                           LOG_ERROR("TSContDataSet"); 
+                       } 
+
+                       /* Register txn_contp to be called back when txnp reaches TS_HTTP_TXN_CLOSE_HOOK */ 
+                       if (TSHttpTxnHookAdd (txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_contp) == TS_ERROR) { 
+                           LOG_ERROR("TSHttpTxnHookAdd"); 
+                       } 
+
+                       break; 
+
+                   default: 
+                       TSAssert(!"Unexpected Event"); 
+                       break; 
+               } 
+
+               if (TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE) == TS_ERROR) { 
+                   LOG_ERROR("TSHttpTxnReenable"); 
+               } 
+
+               return 0; 
+           }
+
+For accessing this data from anywhere, use TSContDataGet:
+
+.. code-block:: c
+
+           TSCont txn_contp; 
+           ContData *contData; 
+
+           contData = TSContDataGet(txn_contp); 
+           if (contData == TS_ERROR_PTR) { 
+               LOG_ERROR("TSContDataGet"); 
+           } 
+           contData->state = 1;
+
+Remember to free this memory before destroying the continuation:
+
+.. code-block:: c
+
+           static int txn_cont_handler(TSCont txn_contp, TSEvent event, void *edata) 
+           { 
+               TSHttpTxn txnp; 
+               ContData *contData; 
+               switch (event) { 
+                   case TS_EVENT_HTTP_TXN_CLOSE: 
+                       txnp = (TSHttpTxn) edata; 
+                       contData = TSContDataGet(txn_contp); 
+                       if (contData == TS_ERROR_PTR) { 
+                           LOG_ERROR("TSContDataGet"); 
+                       } else { 
+                           TSfree(contData); 
+                       } 
+                       TSContDestroy(txn_contp); 
+                       break; 
+
+                   default: 
+                       TSAssert(!"Unexpected Event"); 
+                       break; 
+               } 
+
+               if (TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE) == TS_ERROR) { 
+                   LOG_ERROR("TSHttpTxnReenable"); 
+               } 
+
+               return 0; 
+           }
+
+Using Locks
+~~~~~~~~~~~
+
+You do not need to use locks when a continuation has registered itself
+to be called back by HTTP hooks and it only uses the HTTP APIs. In the
+example above, the continuation ``txn_contp`` has registered itself to
+be called back at HTTP hooks and it only uses the HTTP APIs. In this
+case only, it's safe to access data shared between ``txnp`` and
+``txn_contp`` without grabbing a lock. In the example above,
+``txn_contp`` is created with a ``NULL`` mutex. This works because the
+HTTP transaction ``txnp`` is the only one that will call back
+``txn_contp``, and you are guaranteed that ``txn_contp`` will be called
+back only one hook at a time. After processing is finished,
+``txn_contp`` will reenable ``txnp``.
+
+In all other cases, you should create a mutex with the continuation. In
+general, a lock is needed when you're using iocore APIs or any other API
+where ``txn_contp`` is scheduled to be called back by a processor (such
+as the cache processor, the DNS processor, etc.). This ensures that
+``txn_contp`` is called back sequentially and not simultaneously. In
+other words, you need to ensure that ``txn_contp`` will not be called
+back by both ``txnp`` and the cache processor at the same time, since
+this will result in a situation wherein you're executing two pieces of
+code in conflict.
+
+Special Case: Continuations Created for HTTP Transactions
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If your plugin creates a new continuation for each HTTP transaction,
+then you probably don't need to create a new mutex for it because each
+HTTP transaction (``TSHttpTxn`` object) already has its own mutex.
+
+In the example below, it's not necessary to specify a mutex for the
+continuation created in ``txn_handler``:
+
+.. code-block:: c
+
+    static void
+    txn_handler (TSHttpTxn txnp, TSCont contp) {
+        TSCont newCont;
+        ....
+            newCont = TSContCreate (newCont_handler, NULL);
+        //It's not necessary to create a new mutex for newCont.
+
+        ...
+
+            TSHttpTxnReenable (txnp, TS_EVENT_HTTP_CONTINUE);
+    }
+
+   static int
+   test_plugin (TSCont contp, TSEvent event, void *edata) {
+       TSHttpTxn txnp = (TSHttpTxn) edata;
+
+       switch (event) {
+           case TS_EVENT_HTTP_READ_REQUEST_HDR:
+               txn_handler (txnp, contp);
+               return 0;
+           default:
+               break;
+       }
+       return 0;
+   }
+
+The mutex functions are listed below:
+
+-  :c:func:`TSMutexCreate`
+-  :c:func:`TSMutexLock`
+-  :c:func:`TSMutexLockTry`
+
diff --git a/doc/sdk/new-protocol-plugins.en.rst b/doc/sdk/new-protocol-plugins.en.rst
new file mode 100644
index 00000000..c0f7fc54
--- /dev/null
+++ b/doc/sdk/new-protocol-plugins.en.rst
@@ -0,0 +1,372 @@
+.. _new-protocol-plugins:
+
+New Protocol Plugins
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+.. toctree::
+   :maxdepth: 1
+
+The new protocol APIs enable you to extend Traffic Server to be a web
+proxy for any protocol. This chapter describes new protocol APIs and the
+plugins that support new protocols. It also provides a detailed review
+of code for a sample Protocol plugin that supports a very simple
+artificial HTTP-like protocol.
+
+.. _about-the-sample-protocol:
+
+About the Sample Protocol
+-------------------------
+
+The sample protocol enables a client to ask a server for a file. Clients
+send requests to a specific Traffic Server port (specified in
+:file:`plugin.config`); each request has the following structure::
+
+   server_name file_name
+
+Using the Protocol plugin, Traffic Server can accept these requests,
+parse them, and act as a proxy cache (i.e., request the file from the
+origin server on the client's behalf and store copies of response
+messages in cache). The Protocol plugin is a state machine that flows
+through the states illustrated in the :ref:`Sample Protocol State
+Diagram <SampleProtocolStDiag>`. This figure illustrates the steps
+that Traffic Server and the Protocol plugin go through in order to
+support the sample protocol.
+
+In more specific terms, Traffic Server and the Protocol plugin must:
+
+-  Listen for and accept client connections (on the accept port
+   specified in :file:`plugin.config`)
+
+-  Read incoming client requests
+
+-  Look up the requested content in the Traffic Server cache
+
+-  Serve content from cache if the request is a cache hit (this simple
+   example does not do freshness checking)
+
+-  Open a connection to the origin server if the request is a cache miss
+   (on the server port specified in :file:`plugin.config`)
+
+-  Forward the request to the origin server
+
+-  Receive the origin server response
+
+-  Cache the response and send it on to the client
+
+**Sample Protocol State Diagram**
+
+.. _SampleProtocolStDiag:
+
+.. figure:: ../static/images/sdk/Protocol_state_diagram.jpg
+   :alt: Sample Protocol State Diagram
+
+   Sample Protocol State Diagram
+
+Protocol Plugin Structure
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+To see how the Protocol plugin works, you need to understand some
+broader concepts. This section assumes you're familiar with the concepts
+of :term:`continuation`, Traffic Server's **asynchronous event model**, and
+basic Traffic Server **plugin structure**. If you are not familiar with
+these concepts, then reference :ref:`Getting
+Started <sdk-getting-started>` and :doc:`How to Create
+Traffic Server Plugins <how-to-create-trafficserver-plugins.en>`
+
+Continuations in the Protocol Plugin
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The Protocol plugin creates a static continuation that is an **"accept"
+state machine** - that is, a state machine whose job is to accept client
+connections on the appropriate port. When Traffic Server accepts a net
+connection from a client on that port, the accept state machine is
+activated. It then creates a new continuation: a transaction state
+machine. The accept state machine creates one transaction state machine
+for each transaction (where a :term:`transaction` consists of a client
+request and Traffic Server's response). Each transaction state machine
+lives until the transaction completes; then it is destroyed. If the
+client's request for content is a cache miss, then a transaction state
+machine might need to open a connection to the origin server. This is
+illustrated in the :ref:`Protocol Plugin
+Overview <ProtocolPluginOverview>` diagram below.
+
+**Protocol Plugin Overview**
+
+.. _ProtocolPluginOverview:
+
+.. figure:: ../static/images/sdk/protocol_sm_big.jpg
+   :alt: Protocol Plugin Overview
+
+   Protocol Plugin Overview
+
+The first steps for writing the Protocol plugin are now clear: in
+``TSPluginInit``, you must create a continuation that listens for net
+connections on the client port specified in :file:`plugin.config` (this
+continuation is the accept state machine).
+
+Below is a summary of the continuations implemented for the Protocol
+plugin:
+
+-  An **accept state machine** that listens for client connections, and
+   then creates transaction state machines whenever Traffic Server
+   accepts a new client connection. The accept state machine lives as
+   long as Traffic Server is running.
+
+-  **Transaction state machines** that read client requests, process
+   them, and are then destroyed when the transaction is finished.
+
+Event Flow
+~~~~~~~~~~
+
+Implementing the rest of the Protocol plugin requires that you
+understand the flow of events during the course of a transaction. Unlike
+HTTP transaction plugins, this plugin must read data from network
+connections and then read/write data to the Traffic Server cache. This
+means that its continuations do not receive HTTP state machine events;
+they receive events from Traffic Server's processor subsystems. For
+example: the accept state machine is activated by an
+``TS_EVENT_NET_ACCEPT`` event from Traffic Server's Net Processor; the
+handler function for the accept state machine must therefore be able to
+handle that event.
+
+The transaction state machines are activated when the client connection
+receives incoming request data. The **Net Processor** notifies the
+transaction state machine of incoming data. The transaction state
+machine reads the data; when finished, it initiates a cache lookup of
+the requested file. When the cache lookup completes, the transaction
+state machine is activated by the Traffic Server **Cache Processor**.
+
+If the transaction state machine needs to open a connection to the
+origin server to fetch content (in the case of a cache miss), then the
+transaction state machine initiates a DNS lookup of the server name. The
+transaction state machine is activated by a DNS lookup event from the
+Traffic Server **Host Database Processor**. If the transaction must
+connect to the origin server, then the transaction state machine
+initiates a net connection and waits for an event from the Net
+Processor.
+
+**Protocol Plugin Flow of Events**
+
+.. _ProtocolPluginFlow:
+
+.. figure:: ../static/images/sdk/protocol_evt.jpg
+   :alt: Protocol Plugin Flow of Events
+
+   Protocol Plugin Flow of Events
+
+The flow of events is illustrated in the :ref:`Protocol Plugin Flow of
+Events <ProtocolPluginFlow>` diagram above. The thin straight lines
+show Net Processor event flow, the thin dashed lines represent Host
+Database event flow, and the thick dashed lines show Cache event flow.
+
+Notice that this flow of events is independent of the Protocol plugin's
+design (i.e., whether you build **accept** or **transaction** state
+machines). Any plugin that supports network connections uses the net
+vconnection interfaces (``TSNetAccept``, ``TSNetConnect``) and thus
+receives events from the Net Processor. Any plugin that performs cache
+lookups or cache writes uses ``TSCacheRead``, ``TSCacheWrite``,
+``TSVConnRead``, and ``TSVConnWrite`` and thus receives events from the
+Cache Processor and Traffic Server event system. Similarly, any plugin
+that does DNS lookups receives events from the Host Database Processor.
+
+.. _one-way-to-implement-a-transaction-state-machine:
+
+One Way to Implement a Transaction State Machine
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+**Transaction state machines** (**TSMs**) in the Protocol plugin must do
+the following:
+
+-  Keep track of the state of the transaction
+
+-  Handle events received (based on the state of the transaction and the
+   event received)
+
+-  Update the state of the transaction as it changes
+
+Below is one way you can implement TSMs. Details about how the Protocol
+plugin does this are provided in the next section.
+
+-  Create a data structure for transactions that contains all of the
+   state data you need to keep track of. In the Protocol plugin this is
+   a struct, ``Txn_SM``.
+
+-  When you create the TSM's continuation, initialize data of type
+   ``Txn_SM``. Initialize the data to the initial state of a transaction
+   (in this case, a net connection has just been accepted). Associate
+   this data to the TSM continuation using ``TSContDataSet``.
+
+-  Write state handler functions that handle the expected events for
+   each state.
+
+-  Write the handler for the TSM. Its job is to receive events, examine
+   the current state, and execute the appropriate state handler
+   function. In the Protocol plugin, the handler is ``main_handler``.
+   ``main_handler`` calls the state handler functions to handle each
+   state.
+
+The steps below describe the flow of execution illustrated in :ref:`"How
+Transaction State Machines are Implemented in the Protocol
+Plugin" <ImplementTransStMachine>`.
+
+1. The handler for the TSM, (called **``main_handler``** in the Protocol
+   plugin) receives events from the TSM.
+
+2. **``main_handler``** examines the state of the transaction-in
+   particular, it examines the current handler.
+
+3. **``main_handler``** calls the **``current_handler``** (which is one
+   of the state handler functions), and then passes the current event to
+   **``current_handler``**. In :ref:`the image
+   below <ImplementTransStMachine>` below, the current handler is
+   called **``state2_handler``**.
+
+4. The **``current_handler``** handles the event and updates the data.
+   In :ref:`the image below <ImplementTransStMachine>` below, the state is
+   changed from **``state2``** to **``state3``** (and the current
+   handler is changed from **``state2_handler``** to
+   **``state3_handler``**). The next time **``main_handler``** receives
+   an event, it will be processed by **``state3_handler``**.
+
+5. **``state2_handler``** arranges the next callback of the TSM.
+   Typically, it gives Traffic Server additional work to do (such as
+   writing a file to cache) so that it can progress to the next state.
+   The TSM (**``main_handler``**) then waits for the next event to
+   arrive from Traffic Server.
+
+**How Transaction State Machines are Implemented in the Protocol
+Plugin**
+
+.. _ImplementTransStMachine:
+
+.. figure:: ../static/images/sdk/txn_sm.jpg
+   :alt: How Transaction State Machines are Implemented in the Protocol Plugin
+
+   How Transaction State Machines are Implemented in the Protocol Plugin
+
+Processing a Typical Transaction
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The code is contained in the following files:
+
+-  ``Protocol.c`` and ``Protocol.h``
+
+-  ``Accept.c`` and ``Accept.h``
+
+-  ``TxnSM.c`` and ``TxnSM.h``
+
+Below is a step-by-step walk-through of the code that processes a
+typical transaction.
+
+1.  The ``TSPluginInit`` function is in the ``Protocol.c`` file. It
+    checks the validity of the ``plugin.config`` entries (there must be
+    two: a client accept port and a server port) and runs an
+    initialization routine, ``init``.
+
+2.  The **``init``** function (in ``Protocol.c``) creates the plugin's
+    log file using **``TSTextLogObjectCreate``**.
+
+3.  The **``init``** function creates the accept state machine using
+    **``AcceptCreate``**. The code for **``AcceptCreate``** is in the
+    ``Accept.c`` file.
+
+4.  The accept state machine, like the transaction state machine, keeps
+    track of its state with a data structure. This data structure,
+    **``Accept``**, is defined in the ``Accept.h`` file. State data in
+    **``AcceptCreate``** is associated with the new accept state machine
+    via **``TSContDataSet``**.
+
+5.  The **``init``** function arranges the callback of the accept state
+    machine when there is a network connection by using
+    **``TSNetAccept``**.
+
+6.  The handler for the accept state machine is **``accept_event``** in
+    the ``Accept.c`` file. When Traffic Server's Net Processor sends
+    **``TS_EVENT_NET_ACCEPT``** to the accept state machine,
+    **``accept_event``** creates a transaction state machine
+    (**``txn_sm``**) by calling **``TxnSMCreate``**. Notice that
+    **``accept_event``** creates a mutex for the transaction state
+    machine, since each transaction state machine has its own mutex.
+
+7.  The **``TxnSMCreate``** function is in the ``TxnSM.c`` file. The
+    first thing it does is initialize the transaction's data, which is
+    of type ``TxnSM`` (as defined in ``TxnSM.h``). Notice that the
+    current handler (**``q_current_handler``**) is set to
+    **``state_start``**.
+
+8.  **``TxnSMCreate``** then creates a transaction state machine using
+    **``TSContCreate``**. The handler for the transaction state machine
+    is **``main_handler``**, which is in the ``TxnSM.c`` file.
+
+9.  When **``accept_event``** receives **``TS_EVENT_NET_ACCEPT``**, it
+    calls the transaction state machine (
+    **``TSContCall (txn_sm, 0, NULL);``** ). The event passed to
+    **``main_handler``** is ``0`` (**``TS_EVENT_NONE``**).
+
+10. The first thing **``main_handler``** does is examine the current
+    **``txn_sm``** state by calling **``TSContDataGet``**. The state is
+    **``state_start``**.
+
+11. **``main_handler``** then invokes the handler for
+    **``state_start``** by using the function pointer
+    **``TxnSMHandler``** (as defined in ``TxnSM.h``).
+
+12. The **``state_start``** handler function (in the ``TxnSM.c`` file)
+    is handed an event (at this stage, the event is
+    **``TS_EVENT_NET_ACCEPT``**) and a client vconnection.
+    **``state_start``** checks to see if this client vconnection is
+    closed; if it is not, then **``state_start``** attempts to read data
+    from the client vconnection into an **``TSIOBuffer``**
+    (**``state_start``** is handling the event it receives).
+
+13. **``state_start``** changes the current handler to
+    **``state_interface_with_client``** (that is, it updates the state
+    of the transaction to the next state).
+
+14. **``state_start``** initiates a read of the client vconnection
+    (arranges for Traffic Server to send
+    **``TS_EVENT_VCONN_READ_READY``** events to the TSM) by calling
+    **``TSVConnRead``**.
+
+15. **``state_interface_with_client``** is activated by the next event
+    from Traffic Server. It checks for errors and examines the read VIO
+    for the read operation initiated by **``TSVConnRead``**.
+
+16. If the read VIO is the **``client_read_VIO``** (which we are
+    expecting at this stage in the transaction), then
+    **``state_interface_with_client``** updates the state to
+    **``state_read_request_from_client``** .
+
+17. **``state_read_request_from_client``** handles actual
+    **``TS_EVENT_READ_READY``** events and reads the client request.
+
+18. **``state_read_request_from_client``** parses the client request.
+
+19. **``state_read_request_from_client``** updates the current state to
+    the next state, **``state_handle_cache_lookup``** .
+
+20. **``state_read_request_from_client``** arranges for Traffic Server
+    to call back the TSM with the next set of events (initiating the
+    cache lookup) by calling **``TSCacheRead``**.
+
+21. When the **``TSCacheRead``** sends the TSM either
+    **``TS_EVENT_OPEN_READ``** (a cache hit) or
+    **``TS_EVENT_OPEN_READ_FAILED``** (a cache miss),
+    **``main_handler``** calls **``state_handle_cache_lookup``**.
diff --git a/doc/sdk/plugin-configurations.en.rst b/doc/sdk/plugin-configurations.en.rst
new file mode 100644
index 00000000..2dc222a1
--- /dev/null
+++ b/doc/sdk/plugin-configurations.en.rst
@@ -0,0 +1,115 @@
+Plugin Configurations
+*********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This chapter contains the following section:
+
+.. toctree::
+   :maxdepth: 1
+
+Plugin Configurations
+---------------------
+
+The ``TSConfig`` family of functions provides a mechanism for accessing
+and changing global configuration information within a plugin.
+
+The functions discussed in this section do not examine or modify Traffic
+Server configuration variables. To examine Traffic Server configuration
+and statistics variables, see :doc:`"Reading Traffic Server Settings and
+Statistics" <plugin-management/reading-trafficserver-settings-and-statistics.en>`.
+
+The ``TSConfig`` family of functions is designed to provide a fast and
+efficient mechanism for accessing and changing global configuration
+information within a plugin. Such a mechanism is simple enough to
+provide in a single-threaded program, but the translation to a
+multi-threaded program such as Traffic Server is difficult. A common
+technique is to have a single mutex protect the global configuration
+information; however, the problem with this solution is that a single
+mutex becomes a performance bottleneck very quickly.
+
+The ``TSConfig`` family of functions define an interface to storing and
+retrieving an opaque data pointer. Internally, Traffic Server maintains
+reference count information about the data pointer so that a call to
+``TSConfigSet`` will not disturb another thread using the current data
+pointer. The philosophy is that once a user has a hold of the
+configuration pointer, it is okay for it to be used even if the
+configuration changes; all that a user typically wants is a non-changing
+snapshot of the configuration. You should use ``TSConfigSet`` for all
+global data updates.
+
+Here's how the interface works:
+
+.. code-block:: c
+
+    /* Assume that you have previously defined a plugin configuration
+     * data structure named ConfigData, along with its constructor
+     * plugin_config_allocator () and its destructor 
+     * plugin_config_destructor (ConfigData *data)
+     */
+    ConfigData *plugin_config;
+
+    /* You will need to assign plugin_config a unique identifier of type
+     * unsigned int. It is important to initialize this identifier to zero
+     * (see the documentation of the  function). 
+     */
+    static unsigned int   my_id = 0;
+
+    /* You will need an TSConfig pointer to access a snapshot of the 
+     * current plugin_config. 
+     */
+    TSConfig config_ptr;
+
+    /* Initialize plugin_config. */
+    plugin_config = plugin_config_allocator();
+
+    /* Assign plugin_config an identifier using TSConfigSet. */
+    my_id = TSConfigSet (my_id, plugin_config, plugin_config_destructor);
+
+    /* Get a snapshot of the current configuration using TSConfigGet. */
+    config_ptr = TSConfigGet (my_id);
+
+    /* With an TSConfig pointer to the current configuration, you can 
+     * retrieve the configuration's current data using TSConfigDataGet. 
+     */
+    plugin_config = (ConfigData*) TSConfigDataGet (config_ptr);
+
+    /* Do something with plugin_config here. */
+
+    /* When you are done with retrieving or modifying the plugin data, you
+     * release the pointers to the data with a call to TSConfigRelease.
+     */
+    TSConfigRelease (my_id, config_ptr);
+
+    /* Any time you want to modify plugin_config, you must repeat these
+     * steps, starting with 
+     * my_id = TSConfigSet (my_id,plugin_config, plugin_config_destructor);
+     * and continuing up to TSConfigRelease. 
+     */
+
+The configuration functions are:
+
+-  :c:func:`TSConfigDataGet`
+
+-  :c:func:`TSConfigGet`
+
+-  :c:func:`TSConfigRelease`
+
+-  :c:func:`TSConfigSet`
+
+
diff --git a/doc/sdk/plugin-management.en.rst b/doc/sdk/plugin-management.en.rst
new file mode 100644
index 00000000..84d587ea
--- /dev/null
+++ b/doc/sdk/plugin-management.en.rst
@@ -0,0 +1,28 @@
+Plugin Management
+*****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This chapter covers the following topics:
+
+.. toctree::
+   :maxdepth: 2
+
+   plugin-management/reading-trafficserver-settings-and-statistics.en
+   plugin-management/guide-to-the-logging-api.en
+
diff --git a/doc/sdk/plugin-management/guide-to-the-logging-api.en.rst b/doc/sdk/plugin-management/guide-to-the-logging-api.en.rst
new file mode 100644
index 00000000..1471be74
--- /dev/null
+++ b/doc/sdk/plugin-management/guide-to-the-logging-api.en.rst
@@ -0,0 +1,112 @@
+Guide to the Logging API
+************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The logging API enables your plugin to log entries in a custom text log
+file that you create with the call ``TSTextLogObjectCreate``. This log
+file is part of Traffic Server's logging system; by default, it is
+stored in the logging directory. Once you have created the log object,
+you can set log properties.
+
+The logging API enables you to:
+
+-  Establish a custom text log for your plugin: see
+   :c:func:`TSTextLogObjectCreate`
+
+-  Set the log header for your custom text log: see
+   :c:func:`TSTextLogObjectHeaderSet`
+
+-  Enable or disable rolling your custom text log: see
+   :c:func:`TSTextLogObjectRollingEnabledSet`
+
+-  Set the rolling interval (in seconds) for your custom text log: see
+   :c:func:`TSTextLogObjectRollingIntervalSecSet`
+
+-  Set the rolling offset for your custom text log: see
+   :c:func:`TSTextLogObjectRollingOffsetHrSet`
+
+-  Write text entries to the custom text log: see
+   :c:func:`TSTextLogObjectWrite`
+
+-  Flush the contents of the custom text log's write buffer to disk: see
+   :c:func:`TSTextLogObjectFlush`
+
+-  Destroy custom text logs when you are done with them: see
+   :c:func:`TSTextLogObjectDestroy`
+
+The steps below show how the logging API is used in the
+``blacklist-1.c`` sample plugin. For the complete source code, see the
+`*Sample Source Code* <App_SampleSourceCode.html>`__ appendix.
+
+1. A new log file is defined as a global variable.
+
+   .. code-block:: c
+
+         static TSTextLogObject log;
+
+2. In ``TSPluginInit``, a new log object is allocated:
+
+   .. code-block:: c
+
+           log = TSTextLogObjectCreate("blacklist", TS_LOG_MODE_ADD_TIMESTAMP, NULL, &error);
+
+   The new log is named ``blacklist.log``. Each entry written to the log
+   will have a timestamp. The ``NULL`` argument specifies that the new
+   log does not have a log header. The error argument stores the result
+   of the log creation; if the log is created successfully, then an
+   error will be equal to ``TS_LOG_ERROR_NO_ERROR``.
+
+3. After creating the log, the plugin makes sure that the log was
+   created successfully:
+
+   .. code-block:: c
+
+       if (!log) {
+           printf("Blacklist plugin: error %d while creating log\n", error);
+       }
+
+4. The ``blacklist-1`` plugin matches the host portion of the URL (in
+   each client request) with a list of blacklisted sites (stored in the
+   array ``sites[``]):
+
+   .. code-block:: c
+
+       for (i = 0; i < nsites; i++) { if (strncmp (host, sites[i],
+       host\_length) == 0) {
+
+   If the host matches one of the blacklisted
+   sites (such as ``sites[i]``), then the plugin writes a blacklist
+   entry to ``blacklist.log``:
+
+   .. code-block:: c
+
+       if (log) { TSTextLogObjectWrite(log, "blacklisting site: %s",
+       sites[i]);
+
+   The format of the log entry is as follows:
+
+   ::
+
+       blacklisting site: sites[i]
+
+   The log is not flushed or
+   destroyed in the ``blacklist-1`` plugin - it lives for the life of
+   the plugin.
+
+
diff --git a/doc/sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst b/doc/sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst
new file mode 100644
index 00000000..c275dfa3
--- /dev/null
+++ b/doc/sdk/plugin-management/reading-trafficserver-settings-and-statistics.en.rst
@@ -0,0 +1,55 @@
+Reading Traffic Server Settings and Statistics
+**********************************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+Your plugin might need to know information about Traffic Server's
+current configuration and performance. The functions described in this
+section read this information from the Traffic Server :file:`records.config`
+file. Configuration settings are stored in ``CONFIG`` variables and
+statistics are stored in ``PROCESS`` variables.
+
+.. caution::
+
+   Not all ``CONFIG`` and ``PROCESS`` variables in :file:`records.config` are
+   relevant to Traffic Server's configuration and statistics. Therefore,
+   retrieve only the :file:`records.config` variables that are documented in
+   the :doc:`Traffic Server Administrator's Guide <../../admin/index.en>`.
+
+To retrieve a variable, you need to know its type (``int``, ``counter``,
+``float``, or ``string``). Plugins store the :file:`records.config` values
+as an ``TSMgmtInt``, ``TSMgmtCounter``, ``TSMgmtFloat``, or
+``TSMgmtString``. You can look up :file:`records.config` variable types in
+the :doc:`Traffic Server Administrator's Guide <../../admin/index.en>`.
+
+Depending on the result type, you'll use ``TSMgmtIntGet``,
+``TSMgmtCounterGet``, ``TSMgmtFloatGet``, or ``TSMgmtStringGet`` to
+obtain the variable value (see the example for
+:c:func:`TSMgmtIntGet`.
+
+The ``TSMgmt*Get`` functions are:
+
+-  :c:func:`TSMgmtCounterGet`
+
+-  :c:func:`TSMgmtFloatGet`
+
+-  :c:func:`TSMgmtIntGet`
+
+-  :c:func:`TSMgmtStringGet`
+
+
diff --git a/doc/sdk/preface.en.rst b/doc/sdk/preface.en.rst
new file mode 100644
index 00000000..c2c6318a
--- /dev/null
+++ b/doc/sdk/preface.en.rst
@@ -0,0 +1,47 @@
+.. _sdk-preface:
+
+Preface
+********
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   preface/how-to-use-this-book.en
+   preface/typographical-conventions.en
+
+The *Traffic Server Software Developer's Kit* is a reference for
+creating plugins. **Plugins** are programs that add services (such as
+filtering or content transformation) or entire features (such as new
+protocol support) to Traffic Server. If you are new to writing Traffic
+Server plugins, then read the first two chapters, :ref:`sdk-getting-started`
+and :ref:`how-to-create-trafficserver-plugins`, and use the
+remaining chapters as needed. :ref:`header-based-plugin-examples` provides details about
+plugins that work on HTTP headers, while :ref:`http-transformation-plugin` explains how to write a
+plugin that transforms or scans the body of an HTTP response. If you
+want to support your own protocol on Traffic Server, then reference :ref:`new-protocol-plugins`.
+
+Audience
+--------
+
+This manual is intended for programmers who want to write plugin
+programs that add services or features to Traffic Server. It assumes a
+cursory knowledge of the C programming language, Hyper-Text Transfer
+Protocol (HTTP), and Multipurpose Internet Mail Extensions (MIME).
+
diff --git a/doc/sdk/preface/how-to-use-this-book.en.rst b/doc/sdk/preface/how-to-use-this-book.en.rst
new file mode 100644
index 00000000..6c437fdb
--- /dev/null
+++ b/doc/sdk/preface/how-to-use-this-book.en.rst
@@ -0,0 +1,130 @@
+How to Use This Book
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+  
+    http://www.apache.org/licenses/LICENSE-2.0
+  
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+
+This book has the following basic components:
+
+-  Introduction and overview
+
+-  Tutorials about writing specific kinds of plugins: HTTP header-based
+   plugins, content transformation plugins, and protocol plugins
+
+-  Guides about specific interfaces
+
+-  Reference material
+
+If you're new to writing Traffic Server plugins, then read
+:doc:`../getting-started.en` and :doc:`../how-to-create-trafficserver-plugins.en`,
+and use the remaining chapters as needed. :doc:`../header-based-plugin-examples.en`
+provides details about plugins that work on HTTP headers, while
+:doc:`../http-transformation-plugin.en` explains how to write a plugin that
+transforms or scans the body of an HTTP response. :doc:`../new-protocol-plugins.en`
+provides essential information if you want to support your own protocol on
+Traffic Server.
+
+You can look up information in the following reference sections:
+
+-  `Index <concept-index>`_: lists information by subject
+-  `Function
+   Index <http://ci.apache.org/projects/trafficserver/trunk/doxygen/>`_:
+   Doxygen reference
+-  `Type
+   Index <http://ci.apache.org/projects/trafficserver/trunk/doxygen/classes.html>`_
+-  :doc:`Sample Source Code <../sample-source-code.en>`
+-  `Deprecated
+   Functions <http://ci.apache.org/projects/trafficserver/trunk/doxygen/deprecated.html>`_
+
+Below is a section-by-section breakdown of this guide:
+
+-  :doc:`Getting Started <../getting-started.en>`
+   How to compile and load plugins. Walks through a simple "hello
+   world" example; explains how to initialize and register plugins.
+
+-  :doc:`How to Create Traffic Server
+   Plugins <../how-to-create-trafficserver-plugins.en>`
+   Basic structures that all plugins use: events, continuations, and
+   how to hook on to Traffic Server processes. Detailed explication of a
+   sample blacklisting plugin.
+
+-  :doc:`Remap Plugin <../remap-plugin.en>`
+   This chapter demonstrates on a practical example how you can
+   exploit the Traffic Server remap API for your plugins.
+
+-  :doc:`Header-Based Plugin Examples <../header-based-plugin-examples.en>`
+   Detailed explanation about writing plugins that work on HTTP
+   headers; discusses sample blacklisting and basic authorization
+   plugins.
+
+-  :doc:`HTTP Transformation Plugins <../http-transformation-plugin.en>`
+   Detailed explanation of the null-transform example; also discusses
+   ``VConnections``, ``VIOs``, and IO buffers.
+
+-  :doc:`New Protocol Plugins <../new-protocol-plugins.en>`
+   Detailed explanation of a sample protocol plugin that supports a
+   synthetic protocol. Discusses ``VConnections`` and mutexes, as well
+   as the new ``NetConnection``, DNS lookup, logging, and cache APIs.
+
+The remaining sections comprise the API function reference and are
+organized by function type:
+
+-  :doc:`Miscellaneous Interface Guide <../misc-interface-guide.en>`
+   Details error-writing and tracing functions, thread functions, and
+   Traffic Server API versions of the ``malloc`` and ``fopen`` families.
+   The Traffic Server API versions overcome various C library
+   limitations.
+
+-  :doc:`HTTP Hooks and Transactions <../http-hooks-and-transactions.en>`
+   Functions in this chapter hook your plugin to Traffic Server HTTP
+   processes.
+
+-  :doc:`HTTP Headers <../http-headers.en>`
+   Contains instructions for implementing performance enhancements for
+   all plugins that manipulate HTTP headers. These functions examine and
+   modify HTTP headers, MIME headers, URLs, and the marshal buffers that
+   contain header information. If you are working with headers, then be
+   sure to read this chapter.
+
+-  :doc:`Mutex Guide <../mutex-guide.en>`
+
+-  :doc:`Continuations <../continuations.en>`
+   Continuations provide the basic callback mechanism and data
+   abstractions used in Traffic Server.
+
+-  :doc:`Plugin Configurations <../plugin-configurations.en>`
+
+-  :doc:`Actions Guide <../actions-guide.en>`
+   Describes how to use ``TSActions`` and the ``TSDNSLookup`` API.
+
+-  :doc:`IO Guide <../io-guide.en>`
+   Describes how to use the Traffic Server IO interfaces:
+   ``TSVConnection``, ``TSVIO``, ``TSIOBuffer``, ``TSNetVConnection``,
+   the Cache API.
+
+-  :doc:`Plugin Management <../plugin-management.en>`
+   These functions enable you to set up a configuration interface for
+   plugins, access installed plugin files, and set up plugin licensing.
+
+-  :doc:`Adding Statistics <../adding-statistics.en>`
+   These functions add statistics to your plugin.
+
+-  `Function
+   Index <http://ci.apache.org/projects/trafficserver/trunk/doxygen/>`_
+   Doxygen generated Traffic Server API Documentation
+
+
diff --git a/doc/sdk/preface/typographical-conventions.en.rst b/doc/sdk/preface/typographical-conventions.en.rst
new file mode 100644
index 00000000..3b75c04d
--- /dev/null
+++ b/doc/sdk/preface/typographical-conventions.en.rst
@@ -0,0 +1,36 @@
+Typographical Conventions
+*************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This document uses the following typographic conventions:
+
+\_italics \_ or *\* bold*\ \*
+    Used to introduce terms.
+
+``monospaced face``
+    Represents C language statements, commands, file content, and
+    computer output.
+
+*``monospaced italic``*
+    Represents variables for which you should substitute a value.
+
+``...`` (ellipsis)
+    Indicates the omission of irrelevant or unimportant information.
+
+
diff --git a/doc/sdk/remap-plugin.en.rst b/doc/sdk/remap-plugin.en.rst
new file mode 100644
index 00000000..9a22cc3c
--- /dev/null
+++ b/doc/sdk/remap-plugin.en.rst
@@ -0,0 +1,75 @@
+Remap Plugin
+************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+.. toctree::
+   :maxdepth: 2
+
+   remap-plugin/example-query-remap.en
+
+
+The Remap plugin provides a more flexible, dynamic way of specifying
+remap rules. It is not built on top of the Traffic Server APIs and
+exists solely for the purpose of URL remapping. The remap plugin is not
+global --it is configured on a per-remap rule basis, which enables you
+to customize how URLs are redirected based on individual rules in the
+``remap.config`` file.
+
+The Traffic Server Remap API enables a plugin to dynamically map a
+client request to a target URL. Each plugin is associated with one or
+more remap rules in ``remap.config`` (an "instance"). If a request URL
+matches a remap rule's "fromURL", then Traffic Server calls the
+plugin-defined remap function for that request.
+
+((Editor's note: additional text TBD; text in this chapter is still
+under development))
+
+Getting Started
+---------------
+
+Remap Header File
+~~~~~~~~~~~~~~~~~
+
+The ``remap.h`` header file contains the Traffic Server remap API. By
+default, the header file location is: ``/usr/local/include/ts/remap.h``
+
+Required Functions
+~~~~~~~~~~~~~~~~~~
+
+A remap plugin is required to implement the following functions:
+
+-  `TSRemapInit <http://people.apache.org/~amc/ats/doc/html/remap_8h.html#af7e9b1eee1c38c6f8dcc67a65ba02c24>`_:
+   the remap initialization function, called once when the plugin is
+   loaded
+
+-  `TSRemapNewInstance <http://people.apache.org/~amc/ats/doc/html/remap_8h.html#a963de3eeed2ed7a2da483acf77dc42ca>`_:
+   a new instance is created for each rule associated with the plugin.
+   Called each time the plugin used in a remap rule (this function is
+   what processes the pparam values)
+
+-  `TSRemapDoRemap <http://people.apache.org/~amc/ats/doc/html/remap_8h.html#acf73f0355c591e145398211b3c0596fe>`_:
+   the entry point used by Traffic Server to find the new URL to which
+   it remaps; called every time a request comes in
+
+Configuration
+~~~~~~~~~~~~~
+
+To associate a remap plugin with a remap rule, use the ``@plugin``
+parameter. See the Admin Guide section (?TBD?) for details on
+configuring remap plugins
diff --git a/doc/sdk/remap-plugin/example-query-remap.en.rst b/doc/sdk/remap-plugin/example-query-remap.en.rst
new file mode 100644
index 00000000..776c46d3
--- /dev/null
+++ b/doc/sdk/remap-plugin/example-query-remap.en.rst
@@ -0,0 +1,150 @@
+Example: Query Remap Plugin
+***************************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+The sample remap plugin, ``query_remap.c``, maps client requests to a
+number of servers based on a hash of the request's URL query parameter.
+This can be useful for spreading load for a given type of request among
+backend servers, while still maintaining "stickiness" to a single server
+for similar requests. For example, a search engine may want to send
+repeated queries for the same keywords to a server that has likely
+cached the result from a prior query.
+
+Configuration of query\_remap
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The query remap plugin will allow the query parameter name to be
+specified, along with the hostnames of the servers to hash across.
+Sample ``remap.config`` rules using ``query_remap`` will look like:
+
+::
+
+    map http://www.example.com/search http://srch1.example.com/search @plugin=query_remap.so @pparam=q @pparam=srch1.example.com @pparam=srch2.example.com @pparam=srch3.example.com
+    map http://www.example.com/profiles http://prof1.example.com/profiles @plugin=query_remap.so @pparam=user_id @pparam=prof1.example.com @pparam=prof2.example.com
+
+The first ``@pparam`` specifies the query param key for which the value
+will be hashed. The remaining parameters list the hostnames of the
+servers. A request for ``http://www.example.com/search?q=apache`` will
+match the first rule. The plugin will look for the *``q``* parameter and
+hash the value '``apache``\ ' to pick from among
+``srch_[1-3]_.example.com`` to send the request.
+
+If the request does not include a *``q``* query parameter and the plugin
+decides not to modify the request, the default toURL
+'``http://srch1.example.com/search``\ ' will be used by TS.
+
+The parameters are passed to the plugin's ``tsremap_new_instance``
+function. In ``query_remap``, ``tsremap_new_instance`` creates a
+plugin-defined ``query_remap_info`` struct to store its configuration
+parameters. The ihandle, an opaque pointer that can be used to pass
+per-instance data, is set to this struct pointer and will be passed to
+the ``tsremap_remap`` function when it is triggered for a request.
+
+.. code-block:: c
+
+    typedef struct _query_remap_info {
+      char *param_name;
+      size_t param_len;
+      char **hosts;
+      int num_hosts;
+    } query_remap_info;
+        
+        
+    int tsremap_new_instance(int argc,char *argv[],ihandle *ih,char *errbuf,int errbuf_size)
+    {
+      int i;
+        
+      if (argc param_name = strdup(argv[2]);
+      qri->param_len = strlen(qri->param_name);
+      qri->num_hosts = argc - 3;
+      qri->hosts = (char**) TSmalloc(qri->num_hosts*sizeof(char*));
+        
+      for (i=0; i num_hosts; ++i) {
+        qri->hosts[i] = strdup(argv[i+3]);
+      }
+        
+      *ih = (ihandle)qri;
+      return 0;
+    }
+
+Another way remap plugins may want handle more complex configuration is
+to specify a configuration filename as a ``pparam`` and parse the
+specified file during instance initialization.
+
+Performing the Remap
+~~~~~~~~~~~~~~~~~~~~
+
+The plugin implements the ``tsremap_remap`` function, which is called
+when TS has read the client HTTP request headers and matched the request
+to a remap rule configured for the plugin. The ``TSRemapRequestInfo``
+struct contains input and output members for the remap operation.
+
+``tsremap_remap`` uses the configuration information passed via the
+``ihandle`` and checks the ``request_query`` for the configured query
+parameter. If the parameter is found, the plugin sets a ``new_host`` to
+modify the request host:
+
+.. code-block:: c
+
+    int tsremap_remap(ihandle ih, rhandle rh, TSRemapRequestInfo *rri)
+    {
+      int hostidx = -1;
+      query_remap_info *qri = (query_remap_info*)ih;
+        
+      if (!qri) {
+        TSError("NULL ihandle");
+        return 0;
+      }
+          
+      if (rri && rri->request_query && rri->request_query_size > 0) {
+        char *q, *s, *key;
+            
+        //make a copy of the query, as it is read only
+        q = (char*) TSmalloc(rri->request_query_size+1);
+        strncpy(q, rri->request_query, rri->request_query_size);
+        q[rri->request_query_size] = '\0';
+            
+        s = q;
+        //parse query parameters
+        for (key = strsep(&s, "&"); key != NULL; key = strsep(&s, "&")) {
+          char *val = strchr(key, '=');
+          if (val && (size_t)(val-key) == qri->param_len &&
+              !strncmp(key, qri->param_name, qri->param_len)) {
+            ++val;
+            //the param key matched the configured param_name
+            //hash the param value to pick a host
+            hostidx = hash_fnv32(val, strlen(val)) % (u_int32_t)qri->num_hosts;
+            break;
+          }
+        }
+            
+        TSfree(q);
+            
+        if (hostidx >= 0) {
+          rri->new_host_size = strlen(qri->hosts[hostidx]);
+          if (rri->new_host_size new_host, qri->hosts[hostidx], rri->new_host_size);
+            return 1; //host has been modified
+          }
+        }
+      }
+        
+      //the request was not modified, TS will use the toURL from the remap rule
+      return 0;
+    }
+
diff --git a/doc/sdk/sample-source-code.en.rst b/doc/sdk/sample-source-code.en.rst
new file mode 100644
index 00000000..bd84584a
--- /dev/null
+++ b/doc/sdk/sample-source-code.en.rst
@@ -0,0 +1,308 @@
+Sample Source Code
+******************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This appendix provides several source code examples. In the online
+formats of this book, function calls are linked to their references in
+the previous chapters. The following sample plugins are provided:
+
+-  `blacklist-1.c`_
+
+.. _blacklist-1.c:
+
+blacklist-1.c
+-------------
+
+The sample blacklisting plugin included in the Traffic Server SDK is
+``blacklist-1.c``. This plugin checks every incoming HTTP client request
+against a list of blacklisted web sites. If the client requests a
+blacklisted site, then the plugin returns an ``Access forbidden``
+message to the client.
+
+This plugin illustrates:
+
+-  An HTTP transaction extension
+
+-  How to examine HTTP request headers
+
+-  How to use the logging interface
+
+-  How to use the plugin configuration management interface
+
+.. code-block:: c
+
+       /* blacklist-1.c:  An example program that denies client access
+        *                 to blacklisted sites. This plugin illustrates
+        *                 how to use configuration information from the
+        *                 blacklist.txt configuration file.
+        *
+        * Usage:
+        * (Solaris) : blacklist-1.so
+        *
+        *
+        */
+
+       #include <stdio.h>
+       #include <string.h>
+       #include <ts/ts.h>
+
+       #define MAX_NSITES 500
+
+       static char* sites[MAX_NSITES];
+       static int nsites;
+       static TSMutex sites_mutex;
+       static TSTextLogObject log;
+
+       static void
+       handle_dns (TSHttpTxn txnp, TSCont contp)
+       {
+           TSMBuffer bufp;
+           TSMLoc hdr_loc;
+           TSMLoc url_loc;
+           const char *host;
+           int i;
+           int host_length;
+
+           if (!TSHttpTxnClientReqGet (txnp, &bufp, &hdr_loc)) {
+               TSError ("couldn't retrieve client request header\n");
+               goto done;
+           }
+
+           url_loc = TSHttpHdrUrlGet (bufp, hdr_loc);
+           if (!url_loc) {
+               TSError ("couldn't retrieve request url\n");
+               TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+               goto done;
+           }
+
+           host = TSUrlHostGet (bufp, url_loc, &host_length);
+           if (!host) {
+               TSError ("couldn't retrieve request hostname\n");
+               TSHandleMLocRelease (bufp, hdr_loc, url_loc);
+               TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+               goto done;
+           }
+
+           TSMutexLock(sites_mutex);
+
+           for (i = 0; i < nsites; i++) {
+               if (strncmp (host, sites[i], host_length) == 0) {
+                   if (log) {
+                       TSTextLogObjectWrite(log, "blacklisting site: %s", sites[i]);
+                   } else {
+                       printf ("blacklisting site: %s\n", sites[i]);
+                   }
+                   TSHttpTxnHookAdd (txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+                   TSHandleMLocRelease (bufp, hdr_loc, url_loc);
+                   TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+                   TSHttpTxnReenable (txnp, TS_EVENT_HTTP_ERROR);
+                   TSMutexUnlock(sites_mutex);
+                   return;
+               }
+           }
+
+           TSMutexUnlock(sites_mutex);
+           TSHandleMLocRelease (bufp, hdr_loc, url_loc);
+           TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+
+        done:
+           TSHttpTxnReenable (txnp, TS_EVENT_HTTP_CONTINUE);
+       }
+
+       static void
+       handle_response (TSHttpTxn txnp)
+       {
+           TSMBuffer bufp;
+           TSMLoc hdr_loc;
+           TSMLoc url_loc;
+           char *url_str;
+           char *buf;
+           int url_length;
+
+           if (!TSHttpTxnClientRespGet (txnp, &bufp, &hdr_loc)) {
+               TSError ("couldn't retrieve client response header\n");
+               goto done;
+           }
+
+           TSHttpHdrStatusSet (bufp, hdr_loc, TS_HTTP_STATUS_FORBIDDEN);
+           TSHttpHdrReasonSet (bufp, hdr_loc,
+               TSHttpHdrReasonLookup (TS_HTTP_STATUS_FORBIDDEN),
+               strlen (TSHttpHdrReasonLookup (TS_HTTP_STATUS_FORBIDDEN)) );
+
+           if (!TSHttpTxnClientReqGet (txnp, &bufp, &hdr_loc)) {
+               TSError ("couldn't retrieve client request header\n");
+               TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+               goto done;
+           }
+
+           url_loc = TSHttpHdrUrlGet (bufp, hdr_loc);
+           if (!url_loc) {
+               TSError ("couldn't retrieve request url\n");
+               TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+               goto done;
+           }
+
+           buf = (char *)TSmalloc (4096);
+
+           url_str = TSUrlStringGet (bufp, url_loc, &url_length);
+           sprintf (buf, "You are forbidden from accessing \"%s\"\n", url_str);
+           TSfree (url_str);
+           TSHandleMLocRelease (bufp, hdr_loc, url_loc);
+           TSHandleMLocRelease (bufp, TS_NULL_MLOC, hdr_loc);
+
+           TSHttpTxnErrorBodySet (txnp, buf, strlen (buf), NULL);
+
+        done:
+           TSHttpTxnReenable (txnp, TS_EVENT_HTTP_CONTINUE);
+       }
+
+       static void
+       read_blacklist (void)
+       {
+           char blacklist_file[1024];
+           TSFile file;
+
+           sprintf (blacklist_file, "%s/blacklist.txt", TSPluginDirGet());
+           file = TSfopen(blacklist_file, "r");
+
+           TSMutexLock (sites_mutex);
+           nsites = 0;
+
+           if (file != NULL) {
+               char buffer[1024];
+
+               while (TSfgets (file, buffer, sizeof(buffer)-1) != NULL && nsites < MAX_NSITES) {
+                   char* eol;
+                   if ((eol = strstr(buffer, "\r\n")) != NULL) {
+                       /* To handle newlines on Windows */
+                       *eol = '\0';
+                   } else if ((eol = strchr(buffer, '\n')) != NULL) {
+                       *eol = '\0';
+                   } else {
+                       /* Not a valid line, skip it */
+                       continue;
+                  }
+                  if (sites[nsites] != NULL) {
+                       TSfree (sites[nsites]);
+                  }
+                  sites[nsites] = TSstrdup (buffer);
+                  nsites++;
+              }
+
+               TSfclose (file);
+           } else {
+              TSError ("unable to open %s\n", blacklist_file);
+              TSError ("all sites will be allowed\n", blacklist_file);
+           }
+
+           TSMutexUnlock (sites_mutex);
+       }
+
+       static int
+       blacklist_plugin (TSCont contp, TSEvent event, void *edata)
+       {
+           TSHttpTxn txnp = (TSHttpTxn) edata;
+
+           switch (event) {
+           case TS_EVENT_HTTP_OS_DNS:
+               handle_dns (txnp, contp);
+               return 0;
+           case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+               handle_response (txnp);
+               return 0;
+           case TS_EVENT_MGMT_UPDATE:
+               read_blacklist ();
+               return 0;
+           default:
+               break;
+           }
+           return 0;
+       }
+
+       int
+       check_ts_version()
+       {
+
+          const char *ts_version = TSTrafficServerVersionGet();
+          int result = 0;
+
+          if (ts_version) {
+              int major_ts_version = 0;
+              int minor_ts_version = 0;
+              int patch_ts_version = 0;
+
+              if (sscanf(ts_version, "%d.%d.%d", &major_ts_version, &minor_ts_version, &patch_ts_version) != 3) {
+                   return 0;
+              }
+
+              /* Need at least TS 2.0 */
+              if (major_ts_version >= 2) {
+                   result = 1;
+              }
+
+          }
+
+          return result;
+       }
+
+       void
+       TSPluginInit (int argc, const char *argv[])
+       {
+           int i;
+           TSCont contp;
+           TSPluginRegistrationInfo info;
+           int error;
+
+           info.plugin_name = "blacklist-1";
+           info.vendor_name = "DsCompany";
+           info.support_email = "ts-api-support@DsCompany.com";
+
+           if (!TSPluginRegister (TS_SDK_VERSION_2_0 , &info)) {
+               TSError ("Plugin registration failed.\n");
+           }
+
+           if (!check_ts_version()) {
+              TSError ("Plugin requires Traffic Server 2.0 or later\n");
+              return;
+           }
+
+           /* create an TSTextLogObject to log blacklisted requests to */
+           log = TSTextLogObjectCreate("blacklist", TS_LOG_MODE_ADD_TIMESTAMP,
+                    NULL, &error);
+           if (!log) {
+               printf("Blacklist plugin: error %d while creating log\n", error);
+           }
+
+           sites_mutex = TSMutexCreate ();
+
+           nsites = 0;
+           for (i = 0; i < MAX_NSITES; i++) {
+               sites[i] = NULL;
+           }
+
+           read_blacklist ();
+
+           contp = TSContCreate (blacklist_plugin, NULL);
+
+           TSHttpHookAdd (TS_HTTP_OS_DNS_HOOK, contp);
+
+           TSMgmtUpdateRegister (contp, "Super Blacklist Plugin", "blacklist.cgi");
+       }
+
+
diff --git a/doc/sdk/skeleton b/doc/sdk/skeleton
new file mode 100755
index 00000000..0e56f803
--- /dev/null
+++ b/doc/sdk/skeleton
@@ -0,0 +1,134 @@
+#! /usr/bin/env perl
+
+#  Licensed to the Apache Software Foundation (ASF) under one 
+#  or more contributor license agreements.  See the NOTICE file 
+#  distributed with this work for additional information 
+#  regarding copyright ownership.  The ASF licenses this file 
+#  to you under the Apache License, Version 2.0 (the 
+#  "License"); you may not use this file except in compliance 
+#  with the License.  You may obtain a copy of the License at 
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0 
+# 
+#  Unless required by applicable law or agreed to in writing, software 
+#  distributed under the License is distributed on an "AS IS" BASIS, 
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+#  See the License for the specific language governing permissions and 
+
+# usage: skeleton [--header=PATH ...] API ...
+# Using declarations from the given headers, generate a skeleton man page
+# for the named APIs.
+
+use 5.012;
+use warnings;
+use autodie;
+use Getopt::Long;
+
+sub slurp
+{
+  my $path = shift;
+  open(my $fh, "<", $path);
+  return do { local $/; <$fh> }
+}
+
+sub datestamp
+{
+  use POSIX qw/strftime/;
+
+  return strftime "%B %d, %Y", localtime;
+}
+
+# Extract the function declarations from an ATS header file.
+sub parse
+{
+  my $decls = [];
+
+  foreach my $header (@_) {
+    my $defs = slurp($header);
+
+    while ($defs =~ m/
+        tsapi\s+        # Start with 'tsapi'
+        ([^;\(]+)       # Capture the followinf return value
+        \s+(\w+)\s*     # Capture the word before the opening parenthesis
+        \(([^\)]+)\)    # Capture the arguments
+        .*\;/xg) {
+      chomp $1; chomp $2; chomp $3;
+      my $d ={ return => $1, name => $2, args => $3 };
+      $d->{args} =~ s/\n//g;
+      push @$decls, $d;
+    }
+  }
+
+  return $decls;
+}
+
+# Return a mandoc declaration for the given API name.
+sub define
+{
+  my $decls = shift;
+  my $name = shift;
+
+  foreach my $d (@$decls) {
+    if ($d->{name} eq $name) {
+      my @args;
+      my $mdoc;
+      @args = split(/,\s+/, $d->{args}); # split args at comma boundaries
+      @args = map { "\"$_\"" } @args; # quote each arg list element
+      $mdoc =
+          ".Ft \"" . $d->{return} . "\"\n" .
+          ".Fo " . $name . "\n" .
+          ".Fa " . join("\n.Fa ", @args) . "\n" .
+          ".Fc";
+      $mdoc =~ s/^\s+(.*)\s+$/$1/;
+      return $mdoc;
+    }
+  }
+}
+
+my @headers = ();
+my $options = GetOptions(
+  "header=s" => \@headers
+);
+
+my $decls = parse(@headers);
+#say define($decls, @ARGV);
+
+print <<EOF;
+.\\"  Licensed to the Apache Software Foundation (ASF) under one .\\"
+.\\"  or more contributor license agreements.  See the NOTICE file .\\"
+.\\"  distributed with this work for additional information .\\"
+.\\"  regarding copyright ownership.  The ASF licenses this file .\\"
+.\\"  to you under the Apache License, Version 2.0 (the .\\"
+.\\"  "License"); you may not use this file except in compliance .\\"
+.\\"  with the License.  You may obtain a copy of the License at .\\"
+.\\" .\\"
+.\\"      http://www.apache.org/licenses/LICENSE-2.0 .\\"
+.\\" .\\"
+.\\"  Unless required by applicable law or agreed to in writing, software .\\"
+.\\"  distributed under the License is distributed on an "AS IS" BASIS, .\\"
+.\\"  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. .\\"
+.\\"  See the License for the specific language governing permissions and .\\"
+.Dd @{[ datestamp() ]}
+.Dt @{[ $ARGV[0] ]} 3ts TSAPI
+.Sh NAME
+.Nm @{[ join(",\n.Nm ", @ARGV) ]}
+.Nd XXX Api short description
+.Sh LIBRARY
+Apache Traffic Server plugin API
+.Sh SYNOPSIS
+.In ts/ts.h
+EOF
+
+print @{[ map { define($decls, $_) . "\n" } @ARGV ]};
+
+print <<EOF;
+.Sh DESCRIPTION
+.Sh RETURN VALUES
+.Sh EXAMPLES
+.nf
+#include <ts/ts.h>
+.fi
+.Sh SEE ALSO
+.Xr TSAPI 3ts
+EOF
+# vim: set ts=2 sw=2 et :
diff --git a/doc/sdk/troubleshooting-tips.en.rst b/doc/sdk/troubleshooting-tips.en.rst
new file mode 100644
index 00000000..3a312bf5
--- /dev/null
+++ b/doc/sdk/troubleshooting-tips.en.rst
@@ -0,0 +1,55 @@
+Troubleshooting Tips
+********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+This appendix lists the following troubleshooting tips.
+
+.. toctree::
+   :maxdepth: 2
+
+   troubleshooting-tips/unable-to-load-plugins.en
+   troubleshooting-tips/unable-to-debug-tags.en
+   troubleshooting-tips/using-a-debugger.en
+   troubleshooting-tips/debugging-memory-leaks.en
+
+
+Unable to Compile Plugins
+-------------------------
+
+The process for compiling a shared library varies with the platform
+used, so the Traffic Server API includes the :program:`tsxs` script you can use
+to create shared libraries on all supported Traffic Server platforms.
+
+Example
+~~~~~~~
+
+Assuming the sample program is stored in the file ``hello-world.c``, you
+could use the following commands to building a shared library:
+
+::
+
+        tsxs -c hello-world.c -o hello-world.so
+
+To install this plugin in your ``plugindir`` use the equivalent of sudo
+on your platform to execute:
+
+::
+
+        sudo tsxs -o hello-world.so -i
+
diff --git a/doc/sdk/troubleshooting-tips/debugging-memory-leaks.en.rst b/doc/sdk/troubleshooting-tips/debugging-memory-leaks.en.rst
new file mode 100644
index 00000000..a2c87dc1
--- /dev/null
+++ b/doc/sdk/troubleshooting-tips/debugging-memory-leaks.en.rst
@@ -0,0 +1,31 @@
+Debugging Memory Leaks
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Memory leaks in a plugin can be detected using e.g. an MRTG graph
+related to memory - you can use memory dump information. Enable
+``mem dump`` in :file:`records.config` as follows:
+
+::
+
+      CONFIG proxy.config.dump_mem_info_frequency INT <value>
+
+This causes Traffic Server to dump memory information to ``traffic.out``
+at ``<value>`` (intervals are in seconds). A zero value means that it is
+disabled.
diff --git a/doc/sdk/troubleshooting-tips/unable-to-debug-tags.en.rst b/doc/sdk/troubleshooting-tips/unable-to-debug-tags.en.rst
new file mode 100644
index 00000000..a72d1601
--- /dev/null
+++ b/doc/sdk/troubleshooting-tips/unable-to-debug-tags.en.rst
@@ -0,0 +1,109 @@
+Using Debug Tags
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+Use the API
+``void TSDebug (const char *tag, const char *format_str, ...)`` to add
+traces in your plugin. In this API:
+
+-  ``tag`` is the Traffic Server parameter that enables Traffic Server
+   to print out *``format_str``*
+
+-  ``...`` are variables for *``format_str``* in the standard ``printf``
+   style.
+
+Run Traffic Server with the ``-Ttag`` option. For example, if the tag is
+``my-plugin``, then the debug output goes to ``traffic.out.``\ See
+below:
+
+::
+
+       traffic_server -T"my-plugin"
+
+Set the following variables in :file:`records.config` (in the Traffic Server
+``config`` directory):
+
+::
+
+       CONFIG proxy.config.diags.debug.enabled INT 1
+       CONFIG proxy.config.diags.debug.tags STRING debug-tag-name
+
+In this case, debug output goes to ``traffic.out``.
+
+Example:
+
+.. code-block:: c
+
+       TSDebug ("my-plugin", "Starting my-plugin at %d\n", the_time);
+
+The statement ``"Starting my-plugin at <time>"`` appears whenever you
+run Traffic Server with the ``my-plugin`` tag:
+
+::
+
+       traffic_server -T"my-plugin"
+
+Other Useful Internal Debug Tags
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Embedded in the base Traffic Server code are many debug tags for
+internal debugging purposes. These can also be used to follow Traffic
+Server behavior for testing and analysis.
+
+The debug tag setting (``-T`` and ``proxy.config.diag.debug.tags``) is a
+anchored regular expression against which the tag for a specific debug
+message is matched. This means the value "http" matches debug emssages
+with the tag "http" but also "http\_seq" and "http\_trans". If you want
+multiple tags then use a pipe symbol to separate the tags. For example
+"http\_tproxy\|dns\|hostdb" will match any of the message tags
+"http\_tproxy", "dns", "hostdb", or "dns\_srv" (but not "http\_trans"
+nor "splitdns").
+
+Some of the useful HTTP debug tags are:
+
+-  ``http_hdrs`` - traces all incoming and outgoing HTTP headers.
+
+-  ``http_trans`` - traces actions in an HTTP transaction.
+
+-  ``http_seq`` - traces the sequence of the HTTP state machine.
+
+-  ``http_tproxy`` - transparency related HTTP events
+
+-  ``dns`` - DNS operations
+
+-  ``hostdb`` - Host name lookup
+
+-  ``iocore_net`` - Socket and low level IO (very voluminous)
+
+-  ``socket`` - socket operations
+
+-  ``ssl`` - SSL related events
+
+-  ``cache`` - Cache operations (many subtags, examine the output to
+   narrow the tag set)
+
+-  ``cache_update`` - Cache updates including writes
+
+-  ``cache_read`` - Cache read events.
+
+-  ``dir_probe`` - Cache searches.
+
+-  ``sdk`` - gives some warning concerning API usage.
+
+
diff --git a/doc/sdk/troubleshooting-tips/unable-to-load-plugins.en.rst b/doc/sdk/troubleshooting-tips/unable-to-load-plugins.en.rst
new file mode 100644
index 00000000..0d8f7f3a
--- /dev/null
+++ b/doc/sdk/troubleshooting-tips/unable-to-load-plugins.en.rst
@@ -0,0 +1,36 @@
+Unable to Load Plugins
+**********************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+To load plugins, follow the steps below.
+
+1. Make sure that your plugin source code contains an ``TSPluginInit``
+   initialization function.
+
+2. Compile your plugin source code, creating a shared library.
+
+3. Add an entry to the ``plugin.config`` file for your plugin.
+
+4. Add the path to your plugin shared library to the :file:`records.config`
+   file.
+
+5. Restart Traffic Server.
+
+For detailed information about each step above, refer to
+:doc:`../getting-started/a-simple-plugin.en`.
diff --git a/doc/sdk/troubleshooting-tips/using-a-debugger.en.rst b/doc/sdk/troubleshooting-tips/using-a-debugger.en.rst
new file mode 100644
index 00000000..d2729e2b
--- /dev/null
+++ b/doc/sdk/troubleshooting-tips/using-a-debugger.en.rst
@@ -0,0 +1,39 @@
+Using a Debugger
+****************
+
+.. Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+ 
+   http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+
+A debugger can set breakpoints in a plugin. Use a Traffic Server debug
+build and compile the plugin with the ``-g`` option. A debugger can also
+be used to analyze a core dump. To generate core, set the size limit of
+the core files in the :file:`records.config` file to -1 as follows:
+
+::
+
+    CONFIG proxy.config.core_limit INT -1
+
+This is the equivalent of setting ``ulimit -c unlimited``
+
+Debugging Tips:
+~~~~~~~~~~~~~~~
+
+-  Use a Traffic Server debug version.
+
+-  Use assertions in your plugin (``TSAssert``/``TSReleaseAssert``).
+
+
diff --git a/doc/static/images/admin/alarm.jpg b/doc/static/images/admin/alarm.jpg
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diff --git a/doc/static/images/press/ts_logo_tm_1960x375.png b/doc/static/images/press/ts_logo_tm_1960x375.png
new file mode 100644
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diff --git a/doc/static/images/warning.png b/doc/static/images/warning.png
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diff --git a/emacs-style b/emacs-style
new file mode 100644
index 00000000..c24e647d
--- /dev/null
+++ b/emacs-style
@@ -0,0 +1,31 @@
+;; M-x load-file <this file>
+;; or emacs -l <this file>
+;; to use this style: C-c . apache
+;;  Licensed to the Apache Software Foundation (ASF) under one
+;;  or more contributor license agreements.  See the NOTICE file
+;;  distributed with this work for additional information
+;;  regarding copyright ownership.  The ASF licenses this file
+;;  to you under the Apache License, Version 2.0 (the
+;;  "License"); you may not use this file except in compliance
+;;  with the License.  You may obtain a copy of the License at
+;;
+;;      http://www.apache.org/licenses/LICENSE-2.0
+;;
+;;  Unless required by applicable law or agreed to in writing, software
+;;  distributed under the License is distributed on an "AS IS" BASIS,
+;;  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;;  See the License for the specific language governing permissions and
+;;  limitations under the License.
+;;
+(c-add-style "trafficserver"
+	     '((inclass . ++)
+	       (defun-block-intro . ++)
+	       (statement-block-intro . ++)
+	       (substatement . ++)
+	       (brace-list-intro . ++)
+	       (statement-case-intro . ++)
+	       (inextern-lang . 0)
+	       ))
+(setq-default indent-tabs-mode nil)
+;; if you forgot to do this at startup, then M-x eval-expression
+;; (setq indent-tabs-mode nil) on each buffer
diff --git a/example/Makefile.am b/example/Makefile.am
new file mode 100644
index 00000000..c57fbeac
--- /dev/null
+++ b/example/Makefile.am
@@ -0,0 +1,80 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+AM_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+plugins = \
+  add-header.la \
+  append-transform.la \
+  basic-auth.la \
+  blacklist-0.la \
+  blacklist-1.la \
+  bnull-transform.la \
+  cache-scan.la \
+  file-1.la \
+  hello.la \
+  intercept.la \
+  lifecycle-plugin.la \
+  null-transform.la \
+  output-header.la \
+  protocol.la \
+  psi.la \
+  query-remap.la \
+  remap.la \
+  replace-header.la \
+  response-header-1.la \
+  secure-link.la \
+  server-transform.la \
+  thread-1.la \
+  version.la
+
+if BUILD_EXAMPLE_PLUGINS
+pkglib_LTLIBRARIES = $(plugins)
+else
+noinst_LTLIBRARIES = $(plugins)
+endif
+
+add_header_la_SOURCES = add-header/add-header.c
+append_transform_la_SOURCES = append-transform/append-transform.c
+basic_auth_la_SOURCES = basic-auth/basic-auth.c
+blacklist_0_la_SOURCES = blacklist-0/blacklist-0.c
+blacklist_1_la_SOURCES = blacklist-1/blacklist-1.c
+bnull_transform_la_SOURCES = bnull-transform/bnull-transform.c
+cache_scan_la_SOURCES = cache-scan/cache-scan.cc
+file_1_la_SOURCES = file-1/file-1.c
+hello_la_SOURCES = hello/hello.c
+intercept_la_SOURCES = intercept/intercept.cc
+lifecycle_plugin_la_SOURCES = lifecycle-plugin/lifecycle-plugin.c
+null_transform_la_SOURCES = null-transform/null-transform.c
+output_header_la_SOURCES = output-header/output-header.c
+protocol_la_SOURCES = protocol/Protocol.c protocol/TxnSM.c
+query_remap_la_SOURCES = query-remap/query-remap.c
+remap_la_SOURCES = remap/remap.cc
+replace_header_la_SOURCES = replace-header/replace-header.c
+response_header_1_la_SOURCES = response-header-1/response-header-1.c
+server_transform_la_SOURCES = server-transform/server-transform.c
+thread_1_la_SOURCES = thread-1/thread-1.c
+psi_la_SOURCES = thread-pool/psi.c thread-pool/thread.c
+version_la_SOURCES = version/version.c
+secure_link_la_SOURCES = secure-link/secure-link.c
+
+# The following examples do not build:
+#
+# prefetch_eg1_la_SOURCES = prefetch/prefetch-plugin-eg1.c
+# redirect_1_la_SOURCES = redirect-1/redirect-1.c
+# session_1_la_SOURCES = session-1/session-1.c
diff --git a/example/Makefile.in b/example/Makefile.in
new file mode 100644
index 00000000..68c13c8b
--- /dev/null
+++ b/example/Makefile.in
@@ -0,0 +1,1585 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
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+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
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+      -*l?*) strip_trailopt 'l';; \
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+      -[JT]) skip_next=yes;; \
+    esac; \
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+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
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+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = example
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
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+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
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+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
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+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
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+am__v_lt_1 = 
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+@BUILD_EXAMPLE_PLUGINS_TRUE@am_add_header_la_rpath = -rpath \
+@BUILD_EXAMPLE_PLUGINS_TRUE@	$(pkglibdir)
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+am_append_transform_la_OBJECTS = append-transform/append-transform.lo
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+@BUILD_EXAMPLE_PLUGINS_TRUE@	$(pkglibdir)
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+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(add_header_la_SOURCES) $(append_transform_la_SOURCES) \
+	$(basic_auth_la_SOURCES) $(blacklist_0_la_SOURCES) \
+	$(blacklist_1_la_SOURCES) $(bnull_transform_la_SOURCES) \
+	$(cache_scan_la_SOURCES) $(file_1_la_SOURCES) \
+	$(hello_la_SOURCES) $(intercept_la_SOURCES) \
+	$(lifecycle_plugin_la_SOURCES) $(null_transform_la_SOURCES) \
+	$(output_header_la_SOURCES) $(protocol_la_SOURCES) \
+	$(psi_la_SOURCES) $(query_remap_la_SOURCES) \
+	$(remap_la_SOURCES) $(replace_header_la_SOURCES) \
+	$(response_header_1_la_SOURCES) $(secure_link_la_SOURCES) \
+	$(server_transform_la_SOURCES) $(thread_1_la_SOURCES) \
+	$(version_la_SOURCES)
+DIST_SOURCES = $(add_header_la_SOURCES) $(append_transform_la_SOURCES) \
+	$(basic_auth_la_SOURCES) $(blacklist_0_la_SOURCES) \
+	$(blacklist_1_la_SOURCES) $(bnull_transform_la_SOURCES) \
+	$(cache_scan_la_SOURCES) $(file_1_la_SOURCES) \
+	$(hello_la_SOURCES) $(intercept_la_SOURCES) \
+	$(lifecycle_plugin_la_SOURCES) $(null_transform_la_SOURCES) \
+	$(output_header_la_SOURCES) $(protocol_la_SOURCES) \
+	$(psi_la_SOURCES) $(query_remap_la_SOURCES) \
+	$(remap_la_SOURCES) $(replace_header_la_SOURCES) \
+	$(response_header_1_la_SOURCES) $(secure_link_la_SOURCES) \
+	$(server_transform_la_SOURCES) $(thread_1_la_SOURCES) \
+	$(version_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
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+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
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+GEOIP_LIBS = @GEOIP_LIBS@
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+LUA_LDFLAGS = @LUA_LDFLAGS@
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+MKDIR_P = @MKDIR_P@
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+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
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+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
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+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
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+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
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+SPHINXOPTS = @SPHINXOPTS@
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+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
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+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
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+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
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+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
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+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
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+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
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+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
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+host_alias = @host_alias@
+host_cpu = @host_cpu@
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+htmldir = @htmldir@
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+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
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+machine_endianh = @machine_endianh@
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+mathh = @mathh@
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+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
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+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
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+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
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+rel_infodir = @rel_infodir@
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+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
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+sharedstatedir = @sharedstatedir@
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+sys_byteorderh = @sys_byteorderh@
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+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+AM_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+plugins = \
+  add-header.la \
+  append-transform.la \
+  basic-auth.la \
+  blacklist-0.la \
+  blacklist-1.la \
+  bnull-transform.la \
+  cache-scan.la \
+  file-1.la \
+  hello.la \
+  intercept.la \
+  lifecycle-plugin.la \
+  null-transform.la \
+  output-header.la \
+  protocol.la \
+  psi.la \
+  query-remap.la \
+  remap.la \
+  replace-header.la \
+  response-header-1.la \
+  secure-link.la \
+  server-transform.la \
+  thread-1.la \
+  version.la
+
+@BUILD_EXAMPLE_PLUGINS_TRUE@pkglib_LTLIBRARIES = $(plugins)
+@BUILD_EXAMPLE_PLUGINS_FALSE@noinst_LTLIBRARIES = $(plugins)
+add_header_la_SOURCES = add-header/add-header.c
+append_transform_la_SOURCES = append-transform/append-transform.c
+basic_auth_la_SOURCES = basic-auth/basic-auth.c
+blacklist_0_la_SOURCES = blacklist-0/blacklist-0.c
+blacklist_1_la_SOURCES = blacklist-1/blacklist-1.c
+bnull_transform_la_SOURCES = bnull-transform/bnull-transform.c
+cache_scan_la_SOURCES = cache-scan/cache-scan.cc
+file_1_la_SOURCES = file-1/file-1.c
+hello_la_SOURCES = hello/hello.c
+intercept_la_SOURCES = intercept/intercept.cc
+lifecycle_plugin_la_SOURCES = lifecycle-plugin/lifecycle-plugin.c
+null_transform_la_SOURCES = null-transform/null-transform.c
+output_header_la_SOURCES = output-header/output-header.c
+protocol_la_SOURCES = protocol/Protocol.c protocol/TxnSM.c
+query_remap_la_SOURCES = query-remap/query-remap.c
+remap_la_SOURCES = remap/remap.cc
+replace_header_la_SOURCES = replace-header/replace-header.c
+response_header_1_la_SOURCES = response-header-1/response-header-1.c
+server_transform_la_SOURCES = server-transform/server-transform.c
+thread_1_la_SOURCES = thread-1/thread-1.c
+psi_la_SOURCES = thread-pool/psi.c thread-pool/thread.c
+version_la_SOURCES = version/version.c
+secure_link_la_SOURCES = secure-link/secure-link.c
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign example/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign example/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+add-header/$(am__dirstamp):
+	@$(MKDIR_P) add-header
+	@: > add-header/$(am__dirstamp)
+add-header/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) add-header/$(DEPDIR)
+	@: > add-header/$(DEPDIR)/$(am__dirstamp)
+add-header/add-header.lo: add-header/$(am__dirstamp) \
+	add-header/$(DEPDIR)/$(am__dirstamp)
+
+add-header.la: $(add_header_la_OBJECTS) $(add_header_la_DEPENDENCIES) $(EXTRA_add_header_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_add_header_la_rpath) $(add_header_la_OBJECTS) $(add_header_la_LIBADD) $(LIBS)
+append-transform/$(am__dirstamp):
+	@$(MKDIR_P) append-transform
+	@: > append-transform/$(am__dirstamp)
+append-transform/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) append-transform/$(DEPDIR)
+	@: > append-transform/$(DEPDIR)/$(am__dirstamp)
+append-transform/append-transform.lo:  \
+	append-transform/$(am__dirstamp) \
+	append-transform/$(DEPDIR)/$(am__dirstamp)
+
+append-transform.la: $(append_transform_la_OBJECTS) $(append_transform_la_DEPENDENCIES) $(EXTRA_append_transform_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_append_transform_la_rpath) $(append_transform_la_OBJECTS) $(append_transform_la_LIBADD) $(LIBS)
+basic-auth/$(am__dirstamp):
+	@$(MKDIR_P) basic-auth
+	@: > basic-auth/$(am__dirstamp)
+basic-auth/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) basic-auth/$(DEPDIR)
+	@: > basic-auth/$(DEPDIR)/$(am__dirstamp)
+basic-auth/basic-auth.lo: basic-auth/$(am__dirstamp) \
+	basic-auth/$(DEPDIR)/$(am__dirstamp)
+
+basic-auth.la: $(basic_auth_la_OBJECTS) $(basic_auth_la_DEPENDENCIES) $(EXTRA_basic_auth_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_basic_auth_la_rpath) $(basic_auth_la_OBJECTS) $(basic_auth_la_LIBADD) $(LIBS)
+blacklist-0/$(am__dirstamp):
+	@$(MKDIR_P) blacklist-0
+	@: > blacklist-0/$(am__dirstamp)
+blacklist-0/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) blacklist-0/$(DEPDIR)
+	@: > blacklist-0/$(DEPDIR)/$(am__dirstamp)
+blacklist-0/blacklist-0.lo: blacklist-0/$(am__dirstamp) \
+	blacklist-0/$(DEPDIR)/$(am__dirstamp)
+
+blacklist-0.la: $(blacklist_0_la_OBJECTS) $(blacklist_0_la_DEPENDENCIES) $(EXTRA_blacklist_0_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_blacklist_0_la_rpath) $(blacklist_0_la_OBJECTS) $(blacklist_0_la_LIBADD) $(LIBS)
+blacklist-1/$(am__dirstamp):
+	@$(MKDIR_P) blacklist-1
+	@: > blacklist-1/$(am__dirstamp)
+blacklist-1/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) blacklist-1/$(DEPDIR)
+	@: > blacklist-1/$(DEPDIR)/$(am__dirstamp)
+blacklist-1/blacklist-1.lo: blacklist-1/$(am__dirstamp) \
+	blacklist-1/$(DEPDIR)/$(am__dirstamp)
+
+blacklist-1.la: $(blacklist_1_la_OBJECTS) $(blacklist_1_la_DEPENDENCIES) $(EXTRA_blacklist_1_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_blacklist_1_la_rpath) $(blacklist_1_la_OBJECTS) $(blacklist_1_la_LIBADD) $(LIBS)
+bnull-transform/$(am__dirstamp):
+	@$(MKDIR_P) bnull-transform
+	@: > bnull-transform/$(am__dirstamp)
+bnull-transform/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) bnull-transform/$(DEPDIR)
+	@: > bnull-transform/$(DEPDIR)/$(am__dirstamp)
+bnull-transform/bnull-transform.lo: bnull-transform/$(am__dirstamp) \
+	bnull-transform/$(DEPDIR)/$(am__dirstamp)
+
+bnull-transform.la: $(bnull_transform_la_OBJECTS) $(bnull_transform_la_DEPENDENCIES) $(EXTRA_bnull_transform_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_bnull_transform_la_rpath) $(bnull_transform_la_OBJECTS) $(bnull_transform_la_LIBADD) $(LIBS)
+cache-scan/$(am__dirstamp):
+	@$(MKDIR_P) cache-scan
+	@: > cache-scan/$(am__dirstamp)
+cache-scan/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) cache-scan/$(DEPDIR)
+	@: > cache-scan/$(DEPDIR)/$(am__dirstamp)
+cache-scan/cache-scan.lo: cache-scan/$(am__dirstamp) \
+	cache-scan/$(DEPDIR)/$(am__dirstamp)
+
+cache-scan.la: $(cache_scan_la_OBJECTS) $(cache_scan_la_DEPENDENCIES) $(EXTRA_cache_scan_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(CXXLINK) $(am_cache_scan_la_rpath) $(cache_scan_la_OBJECTS) $(cache_scan_la_LIBADD) $(LIBS)
+file-1/$(am__dirstamp):
+	@$(MKDIR_P) file-1
+	@: > file-1/$(am__dirstamp)
+file-1/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) file-1/$(DEPDIR)
+	@: > file-1/$(DEPDIR)/$(am__dirstamp)
+file-1/file-1.lo: file-1/$(am__dirstamp) \
+	file-1/$(DEPDIR)/$(am__dirstamp)
+
+file-1.la: $(file_1_la_OBJECTS) $(file_1_la_DEPENDENCIES) $(EXTRA_file_1_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_file_1_la_rpath) $(file_1_la_OBJECTS) $(file_1_la_LIBADD) $(LIBS)
+hello/$(am__dirstamp):
+	@$(MKDIR_P) hello
+	@: > hello/$(am__dirstamp)
+hello/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) hello/$(DEPDIR)
+	@: > hello/$(DEPDIR)/$(am__dirstamp)
+hello/hello.lo: hello/$(am__dirstamp) hello/$(DEPDIR)/$(am__dirstamp)
+
+hello.la: $(hello_la_OBJECTS) $(hello_la_DEPENDENCIES) $(EXTRA_hello_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_hello_la_rpath) $(hello_la_OBJECTS) $(hello_la_LIBADD) $(LIBS)
+intercept/$(am__dirstamp):
+	@$(MKDIR_P) intercept
+	@: > intercept/$(am__dirstamp)
+intercept/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) intercept/$(DEPDIR)
+	@: > intercept/$(DEPDIR)/$(am__dirstamp)
+intercept/intercept.lo: intercept/$(am__dirstamp) \
+	intercept/$(DEPDIR)/$(am__dirstamp)
+
+intercept.la: $(intercept_la_OBJECTS) $(intercept_la_DEPENDENCIES) $(EXTRA_intercept_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(CXXLINK) $(am_intercept_la_rpath) $(intercept_la_OBJECTS) $(intercept_la_LIBADD) $(LIBS)
+lifecycle-plugin/$(am__dirstamp):
+	@$(MKDIR_P) lifecycle-plugin
+	@: > lifecycle-plugin/$(am__dirstamp)
+lifecycle-plugin/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) lifecycle-plugin/$(DEPDIR)
+	@: > lifecycle-plugin/$(DEPDIR)/$(am__dirstamp)
+lifecycle-plugin/lifecycle-plugin.lo:  \
+	lifecycle-plugin/$(am__dirstamp) \
+	lifecycle-plugin/$(DEPDIR)/$(am__dirstamp)
+
+lifecycle-plugin.la: $(lifecycle_plugin_la_OBJECTS) $(lifecycle_plugin_la_DEPENDENCIES) $(EXTRA_lifecycle_plugin_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_lifecycle_plugin_la_rpath) $(lifecycle_plugin_la_OBJECTS) $(lifecycle_plugin_la_LIBADD) $(LIBS)
+null-transform/$(am__dirstamp):
+	@$(MKDIR_P) null-transform
+	@: > null-transform/$(am__dirstamp)
+null-transform/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) null-transform/$(DEPDIR)
+	@: > null-transform/$(DEPDIR)/$(am__dirstamp)
+null-transform/null-transform.lo: null-transform/$(am__dirstamp) \
+	null-transform/$(DEPDIR)/$(am__dirstamp)
+
+null-transform.la: $(null_transform_la_OBJECTS) $(null_transform_la_DEPENDENCIES) $(EXTRA_null_transform_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_null_transform_la_rpath) $(null_transform_la_OBJECTS) $(null_transform_la_LIBADD) $(LIBS)
+output-header/$(am__dirstamp):
+	@$(MKDIR_P) output-header
+	@: > output-header/$(am__dirstamp)
+output-header/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) output-header/$(DEPDIR)
+	@: > output-header/$(DEPDIR)/$(am__dirstamp)
+output-header/output-header.lo: output-header/$(am__dirstamp) \
+	output-header/$(DEPDIR)/$(am__dirstamp)
+
+output-header.la: $(output_header_la_OBJECTS) $(output_header_la_DEPENDENCIES) $(EXTRA_output_header_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_output_header_la_rpath) $(output_header_la_OBJECTS) $(output_header_la_LIBADD) $(LIBS)
+protocol/$(am__dirstamp):
+	@$(MKDIR_P) protocol
+	@: > protocol/$(am__dirstamp)
+protocol/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) protocol/$(DEPDIR)
+	@: > protocol/$(DEPDIR)/$(am__dirstamp)
+protocol/Protocol.lo: protocol/$(am__dirstamp) \
+	protocol/$(DEPDIR)/$(am__dirstamp)
+protocol/TxnSM.lo: protocol/$(am__dirstamp) \
+	protocol/$(DEPDIR)/$(am__dirstamp)
+
+protocol.la: $(protocol_la_OBJECTS) $(protocol_la_DEPENDENCIES) $(EXTRA_protocol_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_protocol_la_rpath) $(protocol_la_OBJECTS) $(protocol_la_LIBADD) $(LIBS)
+thread-pool/$(am__dirstamp):
+	@$(MKDIR_P) thread-pool
+	@: > thread-pool/$(am__dirstamp)
+thread-pool/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) thread-pool/$(DEPDIR)
+	@: > thread-pool/$(DEPDIR)/$(am__dirstamp)
+thread-pool/psi.lo: thread-pool/$(am__dirstamp) \
+	thread-pool/$(DEPDIR)/$(am__dirstamp)
+thread-pool/thread.lo: thread-pool/$(am__dirstamp) \
+	thread-pool/$(DEPDIR)/$(am__dirstamp)
+
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+	$(AM_V_CCLD)$(LINK) $(am_psi_la_rpath) $(psi_la_OBJECTS) $(psi_la_LIBADD) $(LIBS)
+query-remap/$(am__dirstamp):
+	@$(MKDIR_P) query-remap
+	@: > query-remap/$(am__dirstamp)
+query-remap/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) query-remap/$(DEPDIR)
+	@: > query-remap/$(DEPDIR)/$(am__dirstamp)
+query-remap/query-remap.lo: query-remap/$(am__dirstamp) \
+	query-remap/$(DEPDIR)/$(am__dirstamp)
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+query-remap.la: $(query_remap_la_OBJECTS) $(query_remap_la_DEPENDENCIES) $(EXTRA_query_remap_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_query_remap_la_rpath) $(query_remap_la_OBJECTS) $(query_remap_la_LIBADD) $(LIBS)
+remap/$(am__dirstamp):
+	@$(MKDIR_P) remap
+	@: > remap/$(am__dirstamp)
+remap/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) remap/$(DEPDIR)
+	@: > remap/$(DEPDIR)/$(am__dirstamp)
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+
+remap.la: $(remap_la_OBJECTS) $(remap_la_DEPENDENCIES) $(EXTRA_remap_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(CXXLINK) $(am_remap_la_rpath) $(remap_la_OBJECTS) $(remap_la_LIBADD) $(LIBS)
+replace-header/$(am__dirstamp):
+	@$(MKDIR_P) replace-header
+	@: > replace-header/$(am__dirstamp)
+replace-header/$(DEPDIR)/$(am__dirstamp):
+	@$(MKDIR_P) replace-header/$(DEPDIR)
+	@: > replace-header/$(DEPDIR)/$(am__dirstamp)
+replace-header/replace-header.lo: replace-header/$(am__dirstamp) \
+	replace-header/$(DEPDIR)/$(am__dirstamp)
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+replace-header.la: $(replace_header_la_OBJECTS) $(replace_header_la_DEPENDENCIES) $(EXTRA_replace_header_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK) $(am_replace_header_la_rpath) $(replace_header_la_OBJECTS) $(replace_header_la_LIBADD) $(LIBS)
+response-header-1/$(am__dirstamp):
+	@$(MKDIR_P) response-header-1
+	@: > response-header-1/$(am__dirstamp)
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+	@$(MKDIR_P) response-header-1/$(DEPDIR)
+	@: > response-header-1/$(DEPDIR)/$(am__dirstamp)
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+	response-header-1/$(am__dirstamp) \
+	response-header-1/$(DEPDIR)/$(am__dirstamp)
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+	$(AM_V_CCLD)$(LINK) $(am_response_header_1_la_rpath) $(response_header_1_la_OBJECTS) $(response_header_1_la_LIBADD) $(LIBS)
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+	@$(MKDIR_P) secure-link
+	@: > secure-link/$(am__dirstamp)
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+	@$(MKDIR_P) secure-link/$(DEPDIR)
+	@: > secure-link/$(DEPDIR)/$(am__dirstamp)
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+	@$(MKDIR_P) server-transform/$(DEPDIR)
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+	server-transform/$(DEPDIR)/$(am__dirstamp)
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+	@: > thread-1/$(am__dirstamp)
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+	@: > thread-1/$(DEPDIR)/$(am__dirstamp)
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+	-rm -rf add-header/.libs add-header/_libs
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+	-rm -rf basic-auth/.libs basic-auth/_libs
+	-rm -rf blacklist-0/.libs blacklist-0/_libs
+	-rm -rf blacklist-1/.libs blacklist-1/_libs
+	-rm -rf bnull-transform/.libs bnull-transform/_libs
+	-rm -rf cache-scan/.libs cache-scan/_libs
+	-rm -rf file-1/.libs file-1/_libs
+	-rm -rf hello/.libs hello/_libs
+	-rm -rf intercept/.libs intercept/_libs
+	-rm -rf lifecycle-plugin/.libs lifecycle-plugin/_libs
+	-rm -rf null-transform/.libs null-transform/_libs
+	-rm -rf output-header/.libs output-header/_libs
+	-rm -rf protocol/.libs protocol/_libs
+	-rm -rf query-remap/.libs query-remap/_libs
+	-rm -rf remap/.libs remap/_libs
+	-rm -rf replace-header/.libs replace-header/_libs
+	-rm -rf response-header-1/.libs response-header-1/_libs
+	-rm -rf secure-link/.libs secure-link/_libs
+	-rm -rf server-transform/.libs server-transform/_libs
+	-rm -rf thread-1/.libs thread-1/_libs
+	-rm -rf thread-pool/.libs thread-pool/_libs
+	-rm -rf version/.libs version/_libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+
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+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f add-header/$(DEPDIR)/$(am__dirstamp)
+	-rm -f add-header/$(am__dirstamp)
+	-rm -f append-transform/$(DEPDIR)/$(am__dirstamp)
+	-rm -f append-transform/$(am__dirstamp)
+	-rm -f basic-auth/$(DEPDIR)/$(am__dirstamp)
+	-rm -f basic-auth/$(am__dirstamp)
+	-rm -f blacklist-0/$(DEPDIR)/$(am__dirstamp)
+	-rm -f blacklist-0/$(am__dirstamp)
+	-rm -f blacklist-1/$(DEPDIR)/$(am__dirstamp)
+	-rm -f blacklist-1/$(am__dirstamp)
+	-rm -f bnull-transform/$(DEPDIR)/$(am__dirstamp)
+	-rm -f bnull-transform/$(am__dirstamp)
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+	-rm -f cache-scan/$(am__dirstamp)
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+	-rm -f file-1/$(am__dirstamp)
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+	-rm -f hello/$(am__dirstamp)
+	-rm -f intercept/$(DEPDIR)/$(am__dirstamp)
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+	@echo "it deletes files that may require special tools to rebuild."
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+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+	clean-pkglibLTLIBRARIES mostlyclean-am
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+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
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+
+maintainer-clean: maintainer-clean-am
+	-rm -rf add-header/$(DEPDIR) append-transform/$(DEPDIR) basic-auth/$(DEPDIR) blacklist-0/$(DEPDIR) blacklist-1/$(DEPDIR) bnull-transform/$(DEPDIR) cache-scan/$(DEPDIR) file-1/$(DEPDIR) hello/$(DEPDIR) intercept/$(DEPDIR) lifecycle-plugin/$(DEPDIR) null-transform/$(DEPDIR) output-header/$(DEPDIR) protocol/$(DEPDIR) query-remap/$(DEPDIR) remap/$(DEPDIR) replace-header/$(DEPDIR) response-header-1/$(DEPDIR) secure-link/$(DEPDIR) server-transform/$(DEPDIR) thread-1/$(DEPDIR) thread-pool/$(DEPDIR) version/$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
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+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
+
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+
+uninstall-am: uninstall-pkglibLTLIBRARIES
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+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLTLIBRARIES clean-pkglibLTLIBRARIES \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-pkglibLTLIBRARIES
+
+
+# The following examples do not build:
+#
+# prefetch_eg1_la_SOURCES = prefetch/prefetch-plugin-eg1.c
+# redirect_1_la_SOURCES = redirect-1/redirect-1.c
+# session_1_la_SOURCES = session-1/session-1.c
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/example/add-header/add-header.c b/example/add-header/add-header.c
new file mode 100644
index 00000000..7bd1e154
--- /dev/null
+++ b/example/add-header/add-header.c
@@ -0,0 +1,199 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* add-header.c: a plugin that adds MIME headers to
+ *               client request headers.
+ *
+ *
+ *   Usage:
+ *     add-header.so "name1: value1" "name2: value2" ...
+ *
+ *          namei and valuei are the name and value of the
+ *          ith MIME header to be added to the client request
+ */
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+static TSMBuffer hdr_bufp;
+static TSMLoc hdr_loc;
+
+static void
+add_header(TSHttpTxn txnp, TSCont contp ATS_UNUSED)
+{
+  TSMBuffer req_bufp;
+  TSMLoc req_loc;
+  TSMLoc field_loc;
+  TSMLoc next_field_loc;
+  TSMLoc new_field_loc;
+  int retval;
+
+  if (TSHttpTxnClientReqGet(txnp, &req_bufp, &req_loc) != TS_SUCCESS) {
+    TSError("[add_header] Error while retrieving client request header\n");
+    goto done;
+  }
+
+  field_loc = TSMimeHdrFieldGet(hdr_bufp, hdr_loc, 0);
+  if (field_loc == TS_NULL_MLOC) {
+    TSError("[add_header] Error while getting field");
+    goto error;
+  }
+
+  /* Loop on our header containing fields to add */
+  while (field_loc) {
+
+    /* First create a new field in the client request header */
+    if (TSMimeHdrFieldCreate(req_bufp, req_loc, &new_field_loc) != TS_SUCCESS) {
+      TSError("[add_header] Error while creating new field");
+      TSHandleMLocRelease(hdr_bufp, hdr_loc, field_loc);
+      break;
+    }
+
+    /* Then copy our new field at this new location */
+    retval = TSMimeHdrFieldCopy(req_bufp, req_loc, new_field_loc, hdr_bufp, hdr_loc, field_loc);
+    if (retval == TS_ERROR) {
+      TSError("[add_header] Error while copying new field");
+      TSHandleMLocRelease(hdr_bufp, hdr_loc, field_loc);
+      break;
+    }
+
+    /* Add this field to the Http client request header */
+    retval = TSMimeHdrFieldAppend(req_bufp, req_loc, new_field_loc);
+    if (retval != TS_SUCCESS) {
+      TSError("[add_header] Error while appending new field");
+      TSHandleMLocRelease(hdr_bufp, hdr_loc, field_loc);
+      break;
+    }
+
+    /* We can now release this handle */
+    TSHandleMLocRelease(req_bufp, req_loc, new_field_loc);
+
+    next_field_loc = TSMimeHdrFieldNext(hdr_bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(hdr_bufp, hdr_loc, field_loc);
+    field_loc = next_field_loc;
+  }
+
+
+error:
+  TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static int
+add_header_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    add_header(txnp, contp);
+    return 0;
+  default:
+    break;
+  }
+  return 0;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSMLoc field_loc;
+  const char *p;
+  int i, retval;
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "add-header";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[PluginInit] Plugin registration failed.\n");
+    goto error;
+  }
+
+  if (argc < 2) {
+    TSError("[PluginInit] Usage: %s \"name1: value1\" \"name2: value2\" ...>\n", argv[0]);
+    goto error;
+  }
+
+  hdr_bufp = TSMBufferCreate();
+  if (TSMimeHdrCreate(hdr_bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("[PluginInit] Can not create mime header");
+    goto error;
+  }
+
+  for (i = 1; i < argc; i++) {
+    if (TSMimeHdrFieldCreate(hdr_bufp, hdr_loc, &field_loc) != TS_SUCCESS) {
+      TSError("[PluginInit] Error while creating field");
+      goto error;
+    }
+
+    retval = TSMimeHdrFieldAppend(hdr_bufp, hdr_loc, field_loc);
+    if (retval != TS_SUCCESS) {
+      TSError("[PluginInit] Error while adding field");
+      goto error;
+    }
+
+    p = strchr(argv[i], ':');
+    if (p) {
+      retval = TSMimeHdrFieldNameSet(hdr_bufp, hdr_loc, field_loc, argv[i], p - argv[i]);
+      if (retval == TS_ERROR) {
+        TSError("[PluginInit] Error while naming field");
+        goto error;
+      }
+
+      p += 1;
+      while (isspace(*p)) {
+        p += 1;
+      }
+      retval = TSMimeHdrFieldValueStringInsert(hdr_bufp, hdr_loc, field_loc, -1, p, strlen(p));
+      if (retval == TS_ERROR) {
+        TSError("[PluginInit] Error while inserting field value");
+        goto error;
+      }
+    } else {
+      retval = TSMimeHdrFieldNameSet(hdr_bufp, hdr_loc, field_loc, argv[i], strlen(argv[i]));
+      if (retval == TS_ERROR) {
+        TSError("[PluginInit] Error while inserting field value");
+        goto error;
+      }
+    }
+  }
+
+  /* Create a continuation with a mutex as there is a shared global structure
+     containing the headers to add */
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, TSContCreate(add_header_plugin, TSMutexCreate()));
+  goto done;
+
+error:
+  TSError("[PluginInit] Plugin not initialized");
+
+done:
+  return;
+}
diff --git a/example/add-header/readme.txt b/example/add-header/readme.txt
new file mode 100644
index 00000000..5210d3c7
--- /dev/null
+++ b/example/add-header/readme.txt
@@ -0,0 +1,49 @@
+About add-header.c
+
+This plugin adds a header to a request.
+
+Enter the text of the header to be added into the plugin.config file; for 
+example,
+enter the following line in plugin.config
+
+	add-header.so "name1: value1" "name2: value2"
+
+The TSPluginInit function does the following:
+
+- creates a MIME field buffer that contains the header to be added, 
+	using the following functions:
+	TSMBufferCreate
+	TSMimeHdrCreate
+	TSMimeHdrFieldCreate
+	TSMimeHdrFieldAppend
+	TSMimeHdrFieldNameSet
+	TSMimeHdrFieldValueAppend
+	
+
+- sets up the callback for the add-header-plugin function, which 
+	is the main callback function, using 
+	TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK,
+	TSContCreate(add_header_plugin, NULL);
+
+add_header_plugin is the main function in the plugin. In the 
+event of TS_EVENT_HTTP_READ_REQUEST_HDR (when the HTTP
+state machine reads a request header), it calls the function
+add_header. 
+
+add_header first makes sure that it can retrieve the client request
+header from the current transaction, using 
+	TSHttpTxnClientReqGet
+
+ copies the header into the MIME headers of the 
+HTTP request, using the following functions:
+
+	TSMimeHdrFieldGet
+	TSMimeHdrFieldCreate
+	TSMimeHdrFieldCopy
+	TSMimeHdrFieldAPpend
+	TSMimeHdrFieldNext
+
+When add_header is done, it uses
+	TSHttpTxnReenable 
+to continue. 
+
diff --git a/example/app-template/app-template.cc b/example/app-template/app-template.cc
new file mode 100644
index 00000000..234bf77d
--- /dev/null
+++ b/example/app-template/app-template.cc
@@ -0,0 +1,238 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Example application template to be used with the standalone iocore
+ *
+ */
+
+#include "libts.h"
+
+#include "I_Version.h"
+#include "I_EventSystem.h"
+#include "I_Layout.h"
+#include "I_Net.h"
+#include "I_HostDB.h"
+#include "I_DNS.h"
+#include "I_SplitDNS.h"
+#include "I_Cache.h"
+
+//#include "ts.h" // plugin API's
+
+#include "Initialize.h" // TODO: move to I_Initialize.h ???
+#include "signals.h" // TODO: move to I_Signals.h ???
+
+#include "app-template.h"
+
+#define PROGRAM_NAME		"tsapp"
+
+int use_accept_thread = 0; // TODO: rename and move to I_UnixNetProcessor.h
+extern void RecDumpRecordsHt(RecT rec_type); // TODO: move from P_RecCore.h -> I_RecCore.h
+
+int system_num_of_processors  = ink_number_of_processors();
+int system_num_of_net_threads = DEFAULT_NUMBER_OF_THREADS;
+int system_num_of_udp_threads = DEFAULT_NUMBER_OF_UDP_THREADS;
+
+//int system_remote_management_flag = DEFAULT_REMOTE_MANAGEMENT_FLAG;
+
+//Diags *diags = NULL;
+char debug_tags[1024]  = "";
+char action_tags[1024] = "";
+
+int  version_flag = 0;
+int  tsapp_port = 12345;
+
+AppVersionInfo appVersionInfo;
+
+ArgumentDescription argument_descriptions[] = {
+  {"version", 'V', "Print Version Id", "T",
+   &version_flag, NULL, NULL},
+  {"tsapp_port", 'p', "tsapp port", "I",
+   &tsapp_port, "TSAPP_PORT",  NULL},
+  {"net_threads", 'n', "Number of Net Threads", "I",
+   &system_num_of_net_threads, "TSAPP_NET_THREADS", NULL},
+  {"accept_thread", 'a', "Use an Accept Thread", "T",
+   &use_accept_thread, "TSAPP_ACCEPT_THREAD", NULL},
+  {"poll_timeout", 't', "poll timeout in milliseconds", "I",
+   &net_config_poll_timeout, NULL, NULL},
+  {"debug_tags", 'T', "Debug Tags ('|' separated)", "S1023",
+   debug_tags, "TSAPP_DEBUG_TAGS",  NULL},
+  {"action_tags", 'T', "Action Tags ('|' separated)", "S1023",
+   action_tags, "TSAPP_ACTION_TAGS",  NULL},
+  {"help", 'h', "Help", NULL, NULL, NULL, usage}
+};
+int n_argument_descriptions = SIZE(argument_descriptions);
+
+void init_app_config() {
+  // Net
+   RecRegisterConfigInt(
+    RECT_CONFIG,
+    "proxy.config.net.listen_backlog",
+    1024,
+    RECU_DYNAMIC, RECC_NULL, NULL);
+
+   RecRegisterConfigInt(
+    RECT_CONFIG,
+    "proxy.config.net.connections_throttle",
+    8000,
+    RECU_DYNAMIC, RECC_NULL, NULL);
+
+   RecRegisterConfigInt(
+    RECT_CONFIG,
+    "proxy.config.accept_threads",
+    0,
+    RECU_DYNAMIC, RECC_NULL, NULL);
+
+   // IO
+   RecRegisterConfigInt(
+    RECT_CONFIG,
+    "proxy.config.io.max_buffer_size",
+    32768,
+    RECU_DYNAMIC, RECC_NULL, NULL);
+
+   // Cache, etc
+}
+
+int
+MyAccept::main_event(int event, void *data) {
+  if (event == NET_EVENT_ACCEPT) {
+    //NetVConnection *netvc = (NetVConnection*)data;
+    // allocate continuation to handle this connection/request
+    //
+    // ..handle request, etc
+    //
+    return EVENT_CONT;
+  } else {
+    Fatal("tsapp accept received fatal error: errno = %d", -((int)(intptr_t)data));
+    return EVENT_CONT;
+  }
+}
+
+
+//
+// Shutdown, called from signals interrupt_handler()
+// TODO: rename, consolidate signals stuff, etc
+void
+shutdown_system()
+{
+}
+
+int main(int argc, char * argv[])
+{
+  // build the application information structure
+  appVersionInfo.setup(PACKAGE_NAME,PROGRAM_NAME, PACKAGE_VERSION, __DATE__,
+                       __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+  // create the layout engine
+  Layout::create();
+  process_args(argument_descriptions, n_argument_descriptions, argv);
+
+  // check for the version number request
+  if (version_flag) {
+    fprintf(stderr, "%s\n", appVersionInfo.FullVersionInfoStr);
+    _exit(0);
+  }
+
+  if (chdir(Layout::get()->prefix) < 0) {
+    fprintf(stderr,"unable to change to root directory \"%s\" [%d '%s']\n", Layout::get()->prefix, errno, strerror(errno));
+    fprintf(stderr," please set correct path in env variable TS_ROOT \n");
+    _exit(1);
+  } else {
+    printf("[tsapp] using root directory '%s'\n", Layou::get()->prefix);
+  }
+
+  // Diags
+  init_system_diags(debug_tags, NULL);
+  if (is_debug_tag_set("tsapp"))
+    diags->dump(stdout);
+
+  // Config & Stats
+  RecModeT mode_type = RECM_STAND_ALONE;
+  RecProcessInit(mode_type,diags);
+  //RecProcessInitMessage(mode_type);
+
+  signal(SIGPIPE, SIG_IGN); // ignore broken pipe
+
+  init_buffer_allocators();
+
+  // Initialze iocore modules
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  ink_net_init(NET_SYSTEM_MODULE_VERSION);
+  ink_aio_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_cache_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_hostdb_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_dns_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  //ink_split_dns_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+
+  init_app_config(); // initialize stats and configs
+
+  if (!use_accept_thread) {
+    RecInt tmp = 0;
+    RecGetRecordInt("proxy.config.accept_threads",(RecInt*) &tmp);
+    use_accept_thread = (int32_t)tmp;                          \
+  }
+
+  if (initialize_store()) { // cache
+    printf("unable to initialize storage, (Re)Configuration required\n");
+    _exit(0);
+  }
+
+  // Start processors
+  eventProcessor.start(system_num_of_net_threads);
+
+  RecProcessStart();
+
+  init_signals2();
+
+  netProcessor.start();
+
+  dnsProcessor.start();
+
+  if (hostDBProcessor.start() < 0)
+    printf("bad hostdb or storage configuration, hostdb disabled");
+
+  //clusterProcessor.init();
+
+  cacheProcessor.start();
+
+  //udpNet.start(system_num_of_udp_threads); // XXX : broken
+
+  //sslNetProcessor.start(getNumSSLThreads());
+
+  // initialize logging (after event and net processor)
+  //Log::init(system_remote_management_flag ? 0 : Log::NO_REMOTE_MANAGEMENT);
+
+  // Create accept continuation
+  MyAccept *a = new MyAccept;
+  a->accept_port = tsapp_port;
+  a->mutex = new_ProxyMutex();
+  Action *act= netProcessor.accept(a, a->accept_port, AF_INET, true);
+
+  RecDumpRecordsHt(RECT_NULL); // debugging, specify '-T "rec.*"' to see records
+
+  Debug("tsapp","listening port %d, started %d ethreads, use_accept_thread (%d), act(%p)\n" ,
+        tsapp_port,system_num_of_net_threads,use_accept_thread, act);
+
+  this_thread()->execute();
+}
+
+
diff --git a/example/app-template/app-template.h b/example/app-template/app-template.h
new file mode 100644
index 00000000..4749e810
--- /dev/null
+++ b/example/app-template/app-template.h
@@ -0,0 +1,48 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _app_template_h_
+#define _app_template_h_
+
+#include "libts.h"
+
+#define DEFAULT_ROOT_DIRECTORY            PREFIX
+#define DEFAULT_LOCAL_STATE_DIRECTORY     "var/trafficserver"
+#define DEFAULT_SYSTEM_CONFIG_DIRECTORY   "etc/trafficserver"
+#define DEFAULT_LOG_DIRECTORY             "var/log/trafficserver"
+
+#define DEFAULT_NUMBER_OF_THREADS         ink_number_of_processors()
+#define DEFAULT_NUMBER_OF_UDP_THREADS     1
+
+
+struct MyAccept : public Continuation {
+  int accept_port;
+  int main_event(int event, void *netvc);
+
+  MyAccept()
+    { SET_HANDLER(&MyAccept::main_event); }
+
+};
+
+
+#endif
diff --git a/example/app-template/records.config.in b/example/app-template/records.config.in
new file mode 100644
index 00000000..3a85b7bb
--- /dev/null
+++ b/example/app-template/records.config.in
@@ -0,0 +1,73 @@
+#
+#
+# Process Records Config File
+#
+# <RECORD-TYPE> <NAME> <TYPE> <VALUE (till end of line)>
+#
+#	RECORD-TYPE:	CONFIG, LOCAL
+#	NAME:		name of variable
+#	TYPE:		INT, STRING, FLOAT
+#	VALUE:		Initial value for record
+#
+#
+#
+#
+##############################################################################
+#
+# System Variables
+#
+##############################################################################
+CONFIG proxy.config.bin_path STRING bin
+CONFIG proxy.config.config_dir STRING etc/@PACKAGE@
+CONFIG proxy.config.syslog_facility STRING LOG_DAEMON
+CONFIG proxy.config.cop.linux_min_swapfree_kb INT 10240
+CONFIG proxy.config.cop.linux_min_memfree_kb INT 10240
+CONFIG proxy.config.system.mmap_max INT 2097152
+CONFIG proxy.config.system.memalign_heap INT 0
+CONFIG proxy.config.exec_thread.autoconfig INT 1
+CONFIG proxy.config.exec_thread.autoconfig.scale FLOAT 3.0
+CONFIG proxy.config.exec_thread.limit INT 2
+CONFIG proxy.config.exec_thread.affinity INT 0
+CONFIG proxy.config.accept_threads INT 1
+
+##############################################################################
+#
+# Net Subsystem
+#
+##############################################################################
+CONFIG proxy.config.net.connections_throttle INT 10000
+   # timeout in seconds for defering the accept, 0 is disabled
+CONFIG proxy.config.net.tcp_accept_defer_timeout INT 0
+
+##############################################################################
+#
+# Socket send/recv buffer sizes (0 == don't call setsockopt() )
+#
+##############################################################################
+CONFIG proxy.config.net.sock_send_buffer_size_in INT 262144
+CONFIG proxy.config.net.sock_recv_buffer_size_in INT 0
+CONFIG proxy.config.net.sock_send_buffer_size_out INT 0
+CONFIG proxy.config.net.sock_recv_buffer_size_out INT 0
+
+##############################################################################
+#
+# Debugging
+#
+##############################################################################
+  # Uses a regular expression to match the debugging topic name, performance
+  # will be affected!
+CONFIG proxy.config.diags.debug.enabled INT 1
+CONFIG proxy.config.diags.debug.tags STRING tsmemcache.*|rec.*
+  # Great for tracking down memory leaks, but you need to use the
+  # ink allocators
+CONFIG proxy.config.dump_mem_info_frequency INT 0
+
+##############################################################################
+#
+# User Overridden Configurations Below
+#
+##############################################################################
+
+
+
+
diff --git a/example/append-transform/append-transform.c b/example/append-transform/append-transform.c
new file mode 100644
index 00000000..77ba97fa
--- /dev/null
+++ b/example/append-transform/append-transform.c
@@ -0,0 +1,380 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * append-transform.c:  an example program that appends the text
+ *                      contained in a file to all HTTP/text response
+ *                      bodies.
+ *
+ *
+ *
+ *    Usage:
+ *      append-transform.so <filename>
+ *
+ *              <filename> is the name of the file containing the
+ *              text to be appended
+ *
+ */
+
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#define ASSERT_SUCCESS(_x) TSAssert ((_x) == TS_SUCCESS)
+
+typedef struct
+{
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+  int append_needed;
+} MyData;
+
+static TSIOBuffer append_buffer;
+static TSIOBufferReader append_buffer_reader;
+static int append_buffer_length;
+
+static MyData *
+my_data_alloc()
+{
+  MyData *data;
+
+  data = (MyData *) TSmalloc(sizeof(MyData));
+  TSReleaseAssert(data);
+
+  data->output_vio = NULL;
+  data->output_buffer = NULL;
+  data->output_reader = NULL;
+  data->append_needed = 1;
+
+  return data;
+}
+
+static void
+my_data_destroy(MyData * data)
+{
+  if (data) {
+    if (data->output_buffer)
+      TSIOBufferDestroy(data->output_buffer);
+    TSfree(data);
+  }
+}
+
+static void
+handle_transform(TSCont contp)
+{
+  TSVConn output_conn;
+  TSVIO write_vio;
+  MyData *data;
+  int64_t towrite;
+  int64_t avail;
+
+  /* Get the output connection where we'll write data to. */
+  output_conn = TSTransformOutputVConnGet(contp);
+
+  /* Get the write VIO for the write operation that was performed on
+     ourself. This VIO contains the buffer that we are to read from
+     as well as the continuation we are to call when the buffer is
+     empty. */
+  write_vio = TSVConnWriteVIOGet(contp);
+
+  /* Get our data structure for this operation. The private data
+     structure contains the output VIO and output buffer. If the
+     private data structure pointer is NULL, then we'll create it
+     and initialize its internals. */
+  data = TSContDataGet(contp);
+  if (!data) {
+    towrite = TSVIONBytesGet(write_vio);
+    if (towrite != INT64_MAX) {
+      towrite += append_buffer_length;
+    }
+    data = my_data_alloc();
+    data->output_buffer = TSIOBufferCreate();
+    data->output_reader = TSIOBufferReaderAlloc(data->output_buffer);
+    data->output_vio = TSVConnWrite(output_conn, contp, data->output_reader, towrite);
+    TSContDataSet(contp, data);
+  }
+
+  /* We also check to see if the write VIO's buffer is non-NULL. A
+     NULL buffer indicates that the write operation has been
+     shutdown and that the continuation does not want us to send any
+     more WRITE_READY or WRITE_COMPLETE events. For this simplistic
+     transformation that means we're done. In a more complex
+     transformation we might have to finish writing the transformed
+     data to our output connection. */
+  if (!TSVIOBufferGet(write_vio)) {
+    if (data->append_needed) {
+      data->append_needed = 0;
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), append_buffer_reader, append_buffer_length, 0);
+    }
+
+    TSVIONBytesSet(data->output_vio, TSVIONDoneGet(write_vio) + append_buffer_length);
+    TSVIOReenable(data->output_vio);
+
+    return;
+  }
+
+  /* Determine how much data we have left to read. For this append
+     transform plugin this is also the amount of data we have left
+     to write to the output connection. */
+  towrite = TSVIONTodoGet(write_vio);
+  if (towrite > 0) {
+    /* The amount of data left to read needs to be truncated by
+       the amount of data actually in the read buffer. */
+    avail = TSIOBufferReaderAvail(TSVIOReaderGet(write_vio));
+    if (towrite > avail) {
+      towrite = avail;
+    }
+
+    if (towrite > 0) {
+      /* Copy the data from the read buffer to the output buffer. */
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), TSVIOReaderGet(write_vio), towrite, 0);
+
+      /* Tell the read buffer that we have read the data and are no
+         longer interested in it. */
+      TSIOBufferReaderConsume(TSVIOReaderGet(write_vio), towrite);
+
+      /* Modify the write VIO to reflect how much data we've
+         completed. */
+      TSVIONDoneSet(write_vio, TSVIONDoneGet(write_vio) + towrite);
+    }
+  }
+
+  /* Now we check the write VIO to see if there is data left to
+     read. */
+  if (TSVIONTodoGet(write_vio) > 0) {
+    if (towrite > 0) {
+      /* If there is data left to read, then we reenable the output
+         connection by reenabling the output VIO. This will wakeup
+         the output connection and allow it to consume data from the
+         output buffer. */
+      TSVIOReenable(data->output_vio);
+
+      /* Call back the write VIO continuation to let it know that we
+         are ready for more data. */
+      TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_READY, write_vio);
+    }
+  } else {
+    if (data->append_needed) {
+      data->append_needed = 0;
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), append_buffer_reader, append_buffer_length, 0);
+    }
+
+    /* If there is no data left to read, then we modify the output
+       VIO to reflect how much data the output connection should
+       expect. This allows the output connection to know when it
+       is done reading. We then reenable the output connection so
+       that it can consume the data we just gave it. */
+    TSVIONBytesSet(data->output_vio, TSVIONDoneGet(write_vio) + append_buffer_length);
+    TSVIOReenable(data->output_vio);
+
+    /* Call back the write VIO continuation to let it know that we
+       have completed the write operation. */
+    TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_COMPLETE, write_vio);
+  }
+}
+
+static int
+append_transform(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  /* Check to see if the transformation has been closed by a call to
+     TSVConnClose. */
+  if (TSVConnClosedGet(contp)) {
+    my_data_destroy(TSContDataGet(contp));
+    TSContDestroy(contp);
+    return 0;
+  } else {
+    switch (event) {
+    case TS_EVENT_ERROR:
+      {
+        TSVIO write_vio;
+
+        /* Get the write VIO for the write operation that was
+           performed on ourself. This VIO contains the continuation of
+           our parent transformation. */
+        write_vio = TSVConnWriteVIOGet(contp);
+
+        /* Call back the write VIO continuation to let it know that we
+           have completed the write operation. */
+        TSContCall(TSVIOContGet(write_vio), TS_EVENT_ERROR, write_vio);
+      }
+      break;
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      /* When our output connection says that it has finished
+         reading all the data we've written to it then we should
+         shutdown the write portion of its connection to
+         indicate that we don't want to hear about it anymore. */
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+    case TS_EVENT_VCONN_WRITE_READY:
+    default:
+      /* If we get a WRITE_READY event or any other type of
+         event (sent, perhaps, because we were reenabled) then
+         we'll attempt to transform more data. */
+      handle_transform(contp);
+      break;
+    }
+  }
+
+  return 0;
+}
+
+static int
+transformable(TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc field_loc;
+  TSHttpStatus resp_status;
+  const char *value;
+  int val_length;
+
+  TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+
+  /*
+   *    We are only interested in "200 OK" responses.
+   */
+
+  if (TS_HTTP_STATUS_OK == (resp_status = TSHttpHdrStatusGet(bufp, hdr_loc))) {
+
+    /* We only want to do the transformation on documents that have a
+       content type of "text/html". */
+    field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, "Content-Type", 12);
+    if (!field_loc) {
+      ASSERT_SUCCESS(TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc));
+      return 0;
+    }
+
+    value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, -1, &val_length);
+    if (value && (strncasecmp(value, "text/html", sizeof("text/html") - 1) == 0)) {
+      ASSERT_SUCCESS(TSHandleMLocRelease(bufp, hdr_loc, field_loc));
+      ASSERT_SUCCESS(TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc));
+
+      return 1;
+    } else {
+      ASSERT_SUCCESS(TSHandleMLocRelease(bufp, hdr_loc, field_loc));
+      ASSERT_SUCCESS(TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc));
+      return 0;
+    }
+  }
+
+  return 0;                     /* not a 200 */
+}
+
+static void
+transform_add(TSHttpTxn txnp)
+{
+  TSVConn connp;
+
+  connp = TSTransformCreate(append_transform, txnp);
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+}
+
+static int
+transform_plugin(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    if (transformable(txnp)) {
+      transform_add(txnp);
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+static int
+load(const char *filename)
+{
+  TSFile fp;
+  TSIOBufferBlock blk;
+  char *p;
+  int64_t avail;
+  int err;
+
+  fp = TSfopen(filename, "r");
+  if (!fp) {
+    return 0;
+  }
+
+  append_buffer = TSIOBufferCreate();
+  append_buffer_reader = TSIOBufferReaderAlloc(append_buffer);
+
+  for (;;) {
+    blk = TSIOBufferStart(append_buffer);
+    p = TSIOBufferBlockWriteStart(blk, &avail);
+
+    err = TSfread(fp, p, avail);
+    if (err > 0) {
+      TSIOBufferProduce(append_buffer, err);
+    } else {
+      break;
+    }
+  }
+
+  append_buffer_length = TSIOBufferReaderAvail(append_buffer_reader);
+
+  TSfclose(fp);
+  return 1;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "append-transform";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+    goto Lerror;
+  }
+
+  if (argc != 2) {
+    TSError("usage: %s <filename>\n", argv[0]);
+    goto Lerror;
+  }
+
+  if (!load(argv[1])) {
+    TSError("[append-transform] Could not load %s\n", argv[1]);
+    goto Lerror;
+  }
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(transform_plugin, NULL));
+  return;
+
+Lerror:
+
+  TSError("[append-transform] Unable to initialize plugin\n");
+}
diff --git a/example/append-transform/readme.txt b/example/append-transform/readme.txt
new file mode 100644
index 00000000..56c4797f
--- /dev/null
+++ b/example/append-transform/readme.txt
@@ -0,0 +1,88 @@
+About append-transform.c
+
+This example is based on null-transform.c. It appends text to the body
+of an HTML text response document on its way from the cache to the
+client.   
+
+The plugin first makes sure that it has received a "200 OK"
+response from the origin server.  It then verifies that the returned
+document is of type "text/html".  It "transforms" the document by
+appending text to the file.   To read and write to the body of the 
+document, the plugin uses functions similar to those in null-transform.c.
+
+You place the text to be appended in a file, and you must provide the 
+path to the file in plugin.config. In other words, plugin.config must 
+have a line similar to the following:
+
+  append-transform.so path/to/file
+
+Specify an absolute path to the text file, or a relative path as
+described in the file-plugin README.
+
+TSPluginInit does the following:
+
+- makes sure that there is a text file specified in plugin.config
+	(if not, it returns an error message)
+
+- calls the function load to load the contents of the file into
+	a buffer to be appended to HTML response bodies
+
+- sets up the global hook to call back the plugin:
+	TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, 
+TSContCreate (transform_plugin, NULL)); 
+
+The load function does the following (similar to file-1.c):
+
+- opens the file specified in plugin.config using
+	TSfopen
+
+- creates a buffer for the text to be appended using
+	TSIOBufferCreate
+
+- creates a buffer reader for the text to be appended using
+	TSIOBufferReaderAlloc
+
+- reads the contents of the file in to the buffer using:
+	TSIOBufferStart
+	TSIOBufferBlockWriteStart
+	TSfread	
+	TSIOBufferProduce
+	TSIOBufferReaderAvail
+
+- closes the file using
+	TSfclose
+
+The transform_plugin function does the following:
+
+- tests the response body to make sure it is text/html, using 
+	the function "transformable". The transformable function
+	uses the following API calls:
+	TSHttpTxnServerRespGet
+	TSHttpHdrStatusGet	
+	TSMimeHdrFieldFind
+	TSMimeHdrFieldValueStringGet
+
+- if the response body is deemed transformable, transform_plugin calls
+	transform_add 
+
+- continues the HTTP transaction using
+	TSHttpTxnReenable
+
+The transform_add function does the following:
+
+- creates a continuation for the append transform, using
+	TSTransformCreate (append_transform, txnp); 
+	The handler function for this continuation is 
+	append_transform.
+
+- adds a transaction hook for the append transform, using
+	TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+	This transaction hook sets up a callback during transactions. 
+	When the event TS_HTTP_RESPONSE_TRANSFORM_HOOK happens,
+	the append_transform function is called back.
+
+The remaining functions in the plugin, append_transform and 
+handle_transform, are similar to null_transform and 
+handle_transform in the null-transform.c plugin. 
+
+
diff --git a/example/basic-auth/basic-auth.c b/example/basic-auth/basic-auth.c
new file mode 100644
index 00000000..963b78e5
--- /dev/null
+++ b/example/basic-auth/basic-auth.c
@@ -0,0 +1,244 @@
+/** @file
+
+  A plugin that performs basic HTTP proxy authentication
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+
+#include <unistd.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+
+static char base64_codes[256];
+
+
+static char *
+base64_decode(const char *input)
+{
+#define decode(A) ((unsigned int) base64_codes[(int) input[A]])
+
+  char *output;
+  char *obuf;
+  int len;
+
+  for (len = 0; (input[len] != '\0') && (input[len] != '='); len++);
+
+  output = obuf = (char *) TSmalloc((len * 6) / 8 + 3);
+
+  while (len > 0) {
+    *output++ = decode(0) << 2 | decode(1) >> 4;
+    *output++ = decode(1) << 4 | decode(2) >> 2;
+    *output++ = decode(2) << 6 | decode(3);
+    len -= 4;
+    input += 4;
+  }
+
+  /*
+   * We don't need to worry about leftover bits because
+   * we've allocated a few extra characters and if there
+   * are leftover bits they will be zeros because the extra
+   * inputs will be '='s and '=' decodes to 0.
+   */
+
+  *output = '\0';
+  return obuf;
+
+#undef decode
+}
+
+static int
+authorized(char *user, char *password)
+{
+  /*
+   * This routine checks the validity of the user name and
+   * password. UNIX systems, enter your own authorization code
+   * here. ToDO: This doesn't do anything useful now.
+   */
+  if (user && password) {
+    return 1;
+  } else {
+    return 0;
+  }
+}
+
+static void
+handle_dns(TSHttpTxn txnp, TSCont contp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc field_loc;
+  const char *val;
+  const char *ptr;
+
+  char *user, *password;
+  int authval_length;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header\n");
+    goto done;
+  }
+
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_PROXY_AUTHORIZATION, TS_MIME_LEN_PROXY_AUTHORIZATION);
+  if (!field_loc) {
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    TSError("no Proxy-Authorization field\n");
+    goto done;
+  }
+
+  val = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, -1, &authval_length);
+  if (NULL == val) {
+    TSError("no value in Proxy-Authorization field\n");
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  ptr = val;
+  if (strncmp(ptr, "Basic", 5) != 0) {
+    TSError("no Basic auth type in Proxy-Authorization\n");
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  ptr += 5;
+  while ((*ptr == ' ') || (*ptr == '\t')) {
+    ptr += 1;
+  }
+
+  user = base64_decode(ptr);
+  password = strchr(user, ':');
+  if (!password) {
+    TSError("no password in authorization information\n");
+    TSfree(user);
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+  *password = '\0';
+  password += 1;
+
+  if (!authorized(user, password)) {
+    TSError("%s:%s not authorized\n", user, password);
+    TSfree(user);
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  TSfree(user);
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return;
+
+done:
+  TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+}
+
+static void
+handle_response(TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc field_loc;
+  const char *insert = "Basic realm=\"proxy\"";
+  int len = strlen(insert);
+
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client response header\n");
+    goto done;
+  }
+
+  TSHttpHdrStatusSet(bufp, hdr_loc, TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED);
+  TSHttpHdrReasonSet(bufp, hdr_loc,
+                      TSHttpHdrReasonLookup(TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED),
+                      strlen(TSHttpHdrReasonLookup(TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED)));
+
+  TSMimeHdrFieldCreate(bufp, hdr_loc, &field_loc); // Probably should check for errors
+  TSMimeHdrFieldNameSet(bufp, hdr_loc, field_loc, TS_MIME_FIELD_PROXY_AUTHENTICATE, TS_MIME_LEN_PROXY_AUTHENTICATE);
+  TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, field_loc, -1,  insert, len);
+  TSMimeHdrFieldAppend(bufp, hdr_loc, field_loc);
+
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static int
+auth_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_OS_DNS:
+    handle_dns(txnp, contp);
+    return 0;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    handle_response(txnp);
+    return 0;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  int i, cc;
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "basic-authorization";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  /* Build translation table */
+  for (i = 0, cc = 0; i < 256; i++) {
+    base64_codes[i] = 0;
+  }
+  for (i = 'A'; i <= 'Z'; i++) {
+    base64_codes[i] = cc++;
+  }
+  for (i = 'a'; i <= 'z'; i++) {
+    base64_codes[i] = cc++;
+  }
+  for (i = '0'; i <= '9'; i++) {
+    base64_codes[i] = cc++;
+  }
+  base64_codes['+'] = cc++;
+  base64_codes['/'] = cc++;
+
+  TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, TSContCreate(auth_plugin, NULL));
+}
+
diff --git a/example/basic-auth/readme.txt b/example/basic-auth/readme.txt
new file mode 100644
index 00000000..87430183
--- /dev/null
+++ b/example/basic-auth/readme.txt
@@ -0,0 +1,56 @@
+The basic-auth.c plugin performs basic HTTP proxy authentication.
+
+-- The plugin checks all client request headers for the Proxy-Authorization
+   MIME field, which should contain the user name and password.
+
+     TSPluginInit sets up a global HTTP hook that calls the plugin
+     whenever there is a host DNS lookup. The plugin's continuation
+     handler, auth-plugin, calls handle_dns to check the 
+     Proxy-Authorization field. 
+
+     handle_dns uses TSHttpTxnClientReqGet and TSMimeHdrFieldFind
+     to obtain the Proxy-Authorization field. 
+
+-- If the request does not have the Proxy-Authorization field,
+   the plugin sends the 407 Proxy authorization required status
+   code back to the client. (The client should then prompt the 
+   user for a user name and password, and resend the request
+   with the Proxy-Authorization field filled in.)
+
+     If handle_dns does not find a Proxy-Authorization field,
+     it adds a SEND_RESPONSE_HDR_HOOK to the transaction being
+     processed; this means that Traffic Server will call the 
+     plugin back when sending the client response. 
+
+     handle_dns also reenables the transaction with
+     TS_EVENT_HTTP_ERROR, which means that the plugin wants 
+     Traffic Server to terminate the transaction.
+
+     When Traffic Server terminates the transaction, it 
+     sends the client an error message. Because of the 
+     SEND_RESPONSE_HDR_HOOK, Traffic Server calls the plugin
+     back. The auth-plugin routine calls handle_response to
+     send the client a 407 status code. 
+
+     When the client resends the request with the Proxy-
+     Authorization field, a new transaction begins.  
+
+-- If the Proxy-Authorization MIME field is present, the plugin
+   checks that the authentication scheme is "Basic".
+
+     handle_dns uses TSMimeFieldValueStringGet to get the value
+     of the Proxy-Authorization field.
+
+-- The plugin then obtains the base64-encoded user name and password
+   from the Proxy-Authorization MIME field. 
+
+     handle_dns calls base64_decode to decode the user name
+     and password.
+
+-- This plugin checks the validity of the user name and password.
+   If the client is authenticated, the transaction proceeds. If
+   the client is not authenticated, the plugin sends the client
+   a 407 status code and terminates the transaction. 
+
+     handle_dns calls authorized to validate the user name and
+     password. You can supply your own validation mechanism. 
diff --git a/example/blacklist-0/blacklist-0.c b/example/blacklist-0/blacklist-0.c
new file mode 100644
index 00000000..9038b8f1
--- /dev/null
+++ b/example/blacklist-0/blacklist-0.c
@@ -0,0 +1,174 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *   blacklist-0.c:
+ *	original version of blacklist-1, now used for internal testing
+ *
+ *
+ *	Usage:
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ts/ts.h>
+
+static char **sites;
+static int nsites;
+
+static void
+handle_dns(TSHttpTxn txnp, TSCont contp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+  const char *host;
+  int i;
+  int host_length;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header\n");
+    goto done;
+  }
+
+  if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve request url\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  host = TSUrlHostGet(bufp, url_loc, &host_length);
+  if (!host) {
+    TSError("couldn't retrieve request hostname\n");
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+  for (i = 0; i < nsites; i++) {
+    if (strncmp(host, sites[i], host_length) == 0) {
+      printf("blacklisting site: %s\n", sites[i]);
+      TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+      TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, url_loc);
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+      return;
+    }
+  }
+  TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static void
+handle_response(TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+  char *url_str;
+  char *buf;
+  int url_length;
+
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client response header\n");
+    goto done;
+  }
+
+  TSHttpHdrStatusSet(bufp, hdr_loc, TS_HTTP_STATUS_FORBIDDEN);
+  TSHttpHdrReasonSet(bufp, hdr_loc,
+                      TSHttpHdrReasonLookup(TS_HTTP_STATUS_FORBIDDEN),
+                      strlen(TSHttpHdrReasonLookup(TS_HTTP_STATUS_FORBIDDEN)));
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  if (!TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve request url\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  buf = TSmalloc(4096);
+
+  url_str = TSUrlStringGet(bufp, url_loc, &url_length);
+  sprintf(buf, "You are forbidden from accessing \"%s\"\n", url_str);
+  TSfree(url_str);
+  TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+  TSHttpTxnErrorBodySet(txnp, buf, strlen(buf), NULL);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static int
+blacklist_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_OS_DNS:
+    handle_dns(txnp, contp);
+    return 0;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    handle_response(txnp);
+    return 0;
+  default:
+    break;
+  }
+  return 0;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  int i;
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "blacklist-0";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+
+  }
+
+  nsites = argc - 1;
+  if (nsites > 0) {
+    sites = (char **) TSmalloc(sizeof(char *) * nsites);
+
+    for (i = 0; i < nsites; i++) {
+      sites[i] = TSstrdup(argv[i + 1]);
+    }
+
+    TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, TSContCreate(blacklist_plugin, NULL));
+  }
+}
diff --git a/example/blacklist-1/blacklist-1.c b/example/blacklist-1/blacklist-1.c
new file mode 100644
index 00000000..3b137d63
--- /dev/null
+++ b/example/blacklist-1/blacklist-1.c
@@ -0,0 +1,342 @@
+/** @file
+
+  An example plugin that denies client access to blacklisted sites (blacklist.txt).
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#define MAX_NSITES 500
+#define RETRY_TIME 10
+
+static char *sites[MAX_NSITES];
+static int nsites;
+static TSMutex sites_mutex;
+static TSTextLogObject log;
+static TSCont global_contp;
+
+static void handle_txn_start(TSCont contp, TSHttpTxn txnp);
+
+typedef struct contp_data
+{
+
+  enum calling_func
+  {
+    HANDLE_DNS,
+    HANDLE_RESPONSE,
+    READ_BLACKLIST
+  } cf;
+
+  TSHttpTxn txnp;
+
+} cdata;
+
+static void
+destroy_continuation(TSHttpTxn txnp, TSCont contp)
+{
+  cdata *cd = NULL;
+
+  cd = (cdata *) TSContDataGet(contp);
+  if (cd != NULL) {
+    TSfree(cd);
+  }
+  TSContDestroy(contp);
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return;
+}
+
+
+static void
+handle_dns(TSHttpTxn txnp, TSCont contp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+  const char *host;
+  int i;
+  int host_length;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header\n");
+    goto done;
+  }
+
+  if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve request url\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  host = TSUrlHostGet(bufp, url_loc, &host_length);
+  if (!host) {
+    TSError("couldn't retrieve request hostname\n");
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  /* We need to lock the sites_mutex as that is the mutex that is
+     protecting the global list of all blacklisted sites. */
+  if (TSMutexLockTry(sites_mutex) != TS_SUCCESS) {
+    TSDebug("blacklist-1", "Unable to get lock. Will retry after some time");
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    TSContSchedule(contp, RETRY_TIME, TS_THREAD_POOL_DEFAULT);
+    return;
+  }
+
+  for (i = 0; i < nsites; i++) {
+    if (strncmp(host, sites[i], host_length) == 0) {
+      if (log) {
+        TSTextLogObjectWrite(log, "blacklisting site: %s", sites[i]);
+      } else {
+        TSDebug("blacklist-1", "blacklisting site: %s\n", sites[i]);
+      }
+      TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+      TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+      TSMutexUnlock(sites_mutex);
+      return;
+    }
+  }
+
+  TSMutexUnlock(sites_mutex);
+  TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static void
+handle_response(TSHttpTxn txnp, TSCont contp ATS_UNUSED)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+  char *url_str;
+  char *buf;
+  int url_length;
+
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client response header\n");
+    goto done;
+  }
+
+  TSHttpHdrStatusSet(bufp, hdr_loc, TS_HTTP_STATUS_FORBIDDEN);
+  TSHttpHdrReasonSet(bufp, hdr_loc,
+                      TSHttpHdrReasonLookup(TS_HTTP_STATUS_FORBIDDEN),
+                      strlen(TSHttpHdrReasonLookup(TS_HTTP_STATUS_FORBIDDEN)));
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve request url\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  buf = (char *) TSmalloc(4096);
+
+  url_str = TSUrlStringGet(bufp, url_loc, &url_length);
+  sprintf(buf, "You are forbidden from accessing \"%s\"\n", url_str);
+  TSfree(url_str);
+  TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+  TSHttpTxnErrorBodySet(txnp, buf, strlen(buf), NULL);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static void
+read_blacklist(TSCont contp)
+{
+  char blacklist_file[1024];
+  TSFile file;
+
+  sprintf(blacklist_file, "%s/blacklist.txt", TSPluginDirGet());
+  file = TSfopen(blacklist_file, "r");
+  nsites = 0;
+
+  /* If the Mutext lock is not successful try again in RETRY_TIME */
+  if (TSMutexLockTry(sites_mutex) != TS_SUCCESS) {
+    TSContSchedule(contp, RETRY_TIME, TS_THREAD_POOL_DEFAULT);
+    return;
+  }
+
+  if (file != NULL) {
+    char buffer[1024];
+
+    while (TSfgets(file, buffer, sizeof(buffer) - 1) != NULL && nsites < MAX_NSITES) {
+      char *eol;
+      if ((eol = strstr(buffer, "\r\n")) != NULL) {
+        /* To handle newlines on Windows */
+        *eol = '\0';
+      } else if ((eol = strchr(buffer, '\n')) != NULL) {
+        *eol = '\0';
+      } else {
+        /* Not a valid line, skip it */
+        continue;
+      }
+      if (sites[nsites] != NULL) {
+        TSfree(sites[nsites]);
+      }
+      sites[nsites] = TSstrdup(buffer);
+      nsites++;
+    }
+
+    TSfclose(file);
+  } else {
+    TSError("unable to open %s\n", blacklist_file);
+    TSError("all sites will be allowed\n");
+  }
+
+  TSMutexUnlock(sites_mutex);
+
+}
+
+static int
+blacklist_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp;
+  cdata *cd;
+
+  switch (event) {
+  case TS_EVENT_HTTP_TXN_START:
+    txnp = (TSHttpTxn) edata;
+    handle_txn_start(contp, txnp);
+    return 0;
+  case TS_EVENT_HTTP_OS_DNS:
+    if (contp != global_contp) {
+      cd = (cdata *) TSContDataGet(contp);
+      cd->cf = HANDLE_DNS;
+      handle_dns(cd->txnp, contp);
+      return 0;
+    } else {
+      break;
+    }
+  case TS_EVENT_HTTP_TXN_CLOSE:
+    txnp = (TSHttpTxn) edata;
+    if (contp != global_contp) {
+      destroy_continuation(txnp, contp);
+    }
+    break;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    if (contp != global_contp) {
+      cd = (cdata *) TSContDataGet(contp);
+      cd->cf = HANDLE_RESPONSE;
+      handle_response(cd->txnp, contp);
+      return 0;
+    } else {
+      break;
+    }
+  case TS_EVENT_TIMEOUT:
+    /* when mutex lock is not acquired and continuation is rescheduled,
+       the plugin is called back with TS_EVENT_TIMEOUT with a NULL
+       edata. We need to decide, in which function did the MutexLock
+       failed and call that function again */
+    if (contp != global_contp) {
+      cd = (cdata *) TSContDataGet(contp);
+      switch (cd->cf) {
+      case HANDLE_DNS:
+        handle_dns(cd->txnp, contp);
+        return 0;
+      case HANDLE_RESPONSE:
+        handle_response(cd->txnp, contp);
+        return 0;
+      default:
+	TSDebug("blacklist_plugin", "This event was unexpected: %d\n", event);
+        break;
+      }
+    } else {
+      read_blacklist(contp);
+      return 0;
+    }
+  default:
+    break;
+  }
+  return 0;
+}
+
+static void
+handle_txn_start(TSCont contp ATS_UNUSED, TSHttpTxn txnp)
+{
+  TSCont txn_contp;
+  cdata *cd;
+
+  txn_contp = TSContCreate((TSEventFunc) blacklist_plugin, TSMutexCreate());
+  /* create the data that'll be associated with the continuation */
+  cd = (cdata *) TSmalloc(sizeof(cdata));
+  TSContDataSet(txn_contp, cd);
+
+  cd->txnp = txnp;
+
+  TSHttpTxnHookAdd(txnp, TS_HTTP_OS_DNS_HOOK, txn_contp);
+  TSHttpTxnHookAdd(txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_contp);
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  int i;
+  TSPluginRegistrationInfo info;
+  TSReturnCode error;
+
+  info.plugin_name = "blacklist-1";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  /* create an TSTextLogObject to log blacklisted requests to */
+  error = TSTextLogObjectCreate("blacklist", TS_LOG_MODE_ADD_TIMESTAMP, &log);
+  if (!log || error == TS_ERROR) {
+    TSDebug("blacklist-1", "error while creating log");
+  }
+
+  sites_mutex = TSMutexCreate();
+
+  nsites = 0;
+  for (i = 0; i < MAX_NSITES; i++) {
+    sites[i] = NULL;
+  }
+
+  global_contp = TSContCreate(blacklist_plugin, sites_mutex);
+  read_blacklist(global_contp);
+
+  /*TSHttpHookAdd (TS_HTTP_OS_DNS_HOOK, contp); */
+  TSHttpHookAdd(TS_HTTP_TXN_START_HOOK, global_contp);
+}
diff --git a/example/blacklist-1/blacklist.txt b/example/blacklist-1/blacklist.txt
new file mode 100644
index 00000000..575cd181
--- /dev/null
+++ b/example/blacklist-1/blacklist.txt
@@ -0,0 +1,2 @@
+www.example.com
+<some-nonsense-url>
diff --git a/example/blacklist-1/readme.txt b/example/blacklist-1/readme.txt
new file mode 100644
index 00000000..b8241c57
--- /dev/null
+++ b/example/blacklist-1/readme.txt
@@ -0,0 +1,17 @@
+How to run the blacklist plugin
+===============================
+
+1. Modify blacklist.cgi to specify the location of perl and traffic server.
+2. Copy blacklist.cgi, blacklist-1.so, PoweredByInktomi.gif to the directory
+   specified by the variable proxy.config.plugin.plugin_dir.
+3. Modify plugin.config to load the blacklist plugin.
+
+
+
+About the blacklist plugin
+==========================
+
+The blacklist plugin allows Traffic Server to compare all incoming request
+origin servers with a blacklisted set of web servers. If the requested origin
+server is blacklisted, Traffic Server sends the client a message saying that
+access is denied.
diff --git a/example/bnull-transform/bnull-transform.c b/example/bnull-transform/bnull-transform.c
new file mode 100644
index 00000000..03acb26f
--- /dev/null
+++ b/example/bnull-transform/bnull-transform.c
@@ -0,0 +1,332 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* bnull-transform.c:  an example program that illustrates a buffered
+ *                     null transform.
+ *
+ *
+ *
+ *    Usage:
+ *      bnull-transform.so
+ *
+ *
+ */
+
+/* set tab stops to four. */
+
+#include <stdio.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#define TS_NULL_MUTEX      NULL
+#define STATE_BUFFER_DATA   0
+#define STATE_OUTPUT_DATA   1
+
+typedef struct
+{
+  int state;
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+} MyData;
+
+static MyData *
+my_data_alloc()
+{
+  MyData *data;
+
+  data = (MyData *) TSmalloc(sizeof(MyData));
+  data->state = STATE_BUFFER_DATA;
+  data->output_vio = NULL;
+  data->output_buffer = NULL;
+  data->output_reader = NULL;
+
+  return data;
+}
+
+static void
+my_data_destroy(MyData * data)
+{
+  if (data) {
+    if (data->output_buffer) {
+      TSIOBufferDestroy(data->output_buffer);
+    }
+    TSfree(data);
+  }
+}
+
+static int
+handle_buffering(TSCont contp, MyData * data)
+{
+  TSVIO write_vio;
+  int towrite;
+  int avail;
+
+  /* Get the write VIO for the write operation that was performed on
+     ourself. This VIO contains the buffer that we are to read from
+     as well as the continuation we are to call when the buffer is
+     empty. */
+  write_vio = TSVConnWriteVIOGet(contp);
+
+  /* Create the output buffer and its associated reader */
+  if (!data->output_buffer) {
+    data->output_buffer = TSIOBufferCreate();
+    TSAssert(data->output_buffer);
+    data->output_reader = TSIOBufferReaderAlloc(data->output_buffer);
+    TSAssert(data->output_reader);
+  }
+
+  /* We also check to see if the write VIO's buffer is non-NULL. A
+     NULL buffer indicates that the write operation has been
+     shutdown and that the continuation does not want us to send any
+     more WRITE_READY or WRITE_COMPLETE events. For this buffered
+     transformation that means we're done buffering data. */
+
+  if (!TSVIOBufferGet(write_vio)) {
+    data->state = STATE_OUTPUT_DATA;
+    return 0;
+  }
+
+  /* Determine how much data we have left to read. For this bnull
+     transform plugin this is also the amount of data we have left
+     to write to the output connection. */
+
+  towrite = TSVIONTodoGet(write_vio);
+  if (towrite > 0) {
+    /* The amount of data left to read needs to be truncated by
+       the amount of data actually in the read buffer. */
+
+    avail = TSIOBufferReaderAvail(TSVIOReaderGet(write_vio));
+    if (towrite > avail) {
+      towrite = avail;
+    }
+
+    if (towrite > 0) {
+      /* Copy the data from the read buffer to the input buffer. */
+      TSIOBufferCopy(data->output_buffer, TSVIOReaderGet(write_vio), towrite, 0);
+
+      /* Tell the read buffer that we have read the data and are no
+         longer interested in it. */
+      TSIOBufferReaderConsume(TSVIOReaderGet(write_vio), towrite);
+
+      /* Modify the write VIO to reflect how much data we've
+         completed. */
+      TSVIONDoneSet(write_vio, TSVIONDoneGet(write_vio) + towrite);
+    }
+  }
+
+  /* Now we check the write VIO to see if there is data left to read. */
+  if (TSVIONTodoGet(write_vio) > 0) {
+    if (towrite > 0) {
+      /* Call back the write VIO continuation to let it know that we
+         are ready for more data. */
+      TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_READY, write_vio);
+    }
+  } else {
+    data->state = STATE_OUTPUT_DATA;
+
+    /* Call back the write VIO continuation to let it know that we
+       have completed the write operation. */
+    TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_COMPLETE, write_vio);
+  }
+
+  return 1;
+
+  /* If we are in this code path then something is seriously wrong. */
+  TSError("[bnull-transform] Fatal error in plugin");
+  TSReleaseAssert(!"[bnull-transform] Fatal error in plugin\n");
+  return 0;
+}
+
+static int
+handle_output(TSCont contp, MyData * data)
+{
+  /* Check to see if we need to initiate the output operation. */
+  if (!data->output_vio) {
+    TSVConn output_conn;
+
+    /* Get the output connection where we'll write data to. */
+    output_conn = TSTransformOutputVConnGet(contp);
+
+    data->output_vio =
+      TSVConnWrite(output_conn, contp, data->output_reader, TSIOBufferReaderAvail(data->output_reader));
+
+    TSAssert(data->output_vio);
+  }
+  return 1;
+}
+
+static void
+handle_transform(TSCont contp)
+{
+  MyData *data;
+  int done;
+
+  /* Get our data structure for this operation. The private data
+     structure contains the output VIO and output buffer. If the
+     private data structure pointer is NULL, then we'll create it
+     and initialize its internals. */
+
+  data = TSContDataGet(contp);
+  if (!data) {
+    data = my_data_alloc();
+    TSContDataSet(contp, data);
+  }
+
+  do {
+    switch (data->state) {
+    case STATE_BUFFER_DATA:
+      done = handle_buffering(contp, data);
+      break;
+    case STATE_OUTPUT_DATA:
+      done = handle_output(contp, data);
+      break;
+    default:
+      done = 1;
+      break;
+    }
+  } while (!done);
+}
+
+static int
+bnull_transform(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  /* Check to see if the transformation has been closed by a
+     call to TSVConnClose. */
+
+  if (TSVConnClosedGet(contp)) {
+    my_data_destroy(TSContDataGet(contp));
+    TSContDestroy(contp);
+  } else {
+    switch (event) {
+    case TS_EVENT_ERROR:{
+        TSVIO write_vio;
+
+        /* Get the write VIO for the write operation that was
+           performed on ourself. This VIO contains the continuation of
+           our parent transformation. */
+        write_vio = TSVConnWriteVIOGet(contp);
+
+        /* Call back the write VIO continuation to let it know that we
+           have completed the write operation. */
+        TSContCall(TSVIOContGet(write_vio), TS_EVENT_ERROR, write_vio);
+        break;
+      }
+
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      /* When our output connection says that it has finished
+         reading all the data we've written to it then we should
+         shutdown the write portion of its connection to
+         indicate that we don't want to hear about it anymore. */
+
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+
+    case TS_EVENT_VCONN_WRITE_READY:
+    default:
+      /* If we get a WRITE_READY event or any other type of event
+         (sent, perhaps, because we were reenabled) then we'll attempt
+         to transform more data. */
+      handle_transform(contp);
+      break;
+    }
+  }
+
+  return 0;
+}
+
+static int
+transformable(TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSHttpStatus resp_status;
+  int retv;
+
+  /* We are only interested in transforming "200 OK" responses. */
+
+  TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+  resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+  retv = (resp_status == TS_HTTP_STATUS_OK);
+
+  if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc) == TS_ERROR) {
+    TSError("[bnull-transform] Error releasing MLOC while checking " "header status\n");
+  }
+
+  return retv;
+}
+
+static void
+transform_add(TSHttpTxn txnp)
+{
+  TSVConn connp;
+
+  connp = TSTransformCreate(bnull_transform, txnp);
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+  return;
+}
+
+static int
+transform_plugin(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    if (transformable(txnp)) {
+      transform_add(txnp);
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+  TSMutex mutex = TS_NULL_MUTEX;
+
+  info.plugin_name = "buffered-null-transform";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[bnull-transform] Plugin registration failed.\n");
+    goto Lerror;
+  }
+
+  /* This is call we could use if we need to protect global data */
+  /* TSReleaseAssert ((mutex = TSMutexCreate()) != TS_NULL_MUTEX); */
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(transform_plugin, mutex));
+  return;
+
+Lerror:
+  TSError("[bnull-transform] Plugin disabled\n");
+}
diff --git a/example/cache-scan/cache-scan.cc b/example/cache-scan/cache-scan.cc
new file mode 100644
index 00000000..efde358b
--- /dev/null
+++ b/example/cache-scan/cache-scan.cc
@@ -0,0 +1,495 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * cache_scan.cc:  use TSCacheScan to print URLs and headers for objects in
+ *                 the cache when endpoint /show-cache is requested
+ */
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include "ts/ts.h"
+#include "ts/experimental.h"
+#include "ink_defs.h"
+
+static TSCont global_contp;
+
+struct cache_scan_state_t
+{
+  TSVConn net_vc;
+  TSVConn cache_vc;
+  TSVIO read_vio;
+  TSVIO write_vio;
+
+  TSIOBuffer req_buffer;
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  TSHttpTxn http_txnp;
+  TSAction pending_action;
+  TSCacheKey key_to_delete;
+
+  int64_t total_bytes;
+  int total_items;
+  int done;
+
+  bool write_pending;
+};
+
+typedef struct cache_scan_state_t cache_scan_state;
+
+
+//----------------------------------------------------------------------------
+static int
+handle_scan(TSCont contp, TSEvent event, void *edata)
+{
+  TSCacheHttpInfo cache_infop;
+  cache_scan_state *cstate = (cache_scan_state *) TSContDataGet(contp);
+
+  if (event == TS_EVENT_CACHE_REMOVE) {
+    cstate->done = 1;
+    const char error[] = "Cache remove operation succeeded";
+    cstate->cache_vc = (TSVConn) edata;
+    cstate->write_vio = TSVConnWrite(cstate->net_vc, contp, cstate->resp_reader, INT64_MAX);
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, error, sizeof(error) - 1);
+    TSVIONBytesSet(cstate->write_vio, cstate->total_bytes);
+    TSVIOReenable(cstate->write_vio);
+    return 0;
+  }
+
+  if (event == TS_EVENT_CACHE_REMOVE_FAILED) {
+    cstate->done = 1;
+    const char error[] = "Cache remove operation failed error=";
+    char rc[12];
+    snprintf(rc, 12, "%p", edata);
+    cstate->cache_vc = (TSVConn) edata;
+    cstate->write_vio = TSVConnWrite(cstate->net_vc, contp, cstate->resp_reader, INT64_MAX);
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, error, sizeof(error) - 1);
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, rc, strlen(rc));
+
+    TSVIONBytesSet(cstate->write_vio, cstate->total_bytes);
+    TSVIOReenable(cstate->write_vio);
+    return 0;
+  }
+
+  //first scan event, save vc and start write
+  if (event == TS_EVENT_CACHE_SCAN) {
+    cstate->cache_vc = (TSVConn) edata;
+    cstate->write_vio = TSVConnWrite(cstate->net_vc, contp, cstate->resp_reader, INT64_MAX);
+    return TS_EVENT_CONTINUE;
+  }
+  //just stop scanning if blocked or failed
+  if (event == TS_EVENT_CACHE_SCAN_FAILED ||
+      event == TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED || event == TS_EVENT_CACHE_SCAN_OPERATION_FAILED) {
+    cstate->done = 1;
+    if (cstate->resp_buffer) {
+      const char error[] = "Cache scan operation blocked or failed";
+      cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, error, sizeof(error) - 1);
+    }
+    if (cstate->write_vio) {
+      TSVIONBytesSet(cstate->write_vio, cstate->total_bytes);
+      TSVIOReenable(cstate->write_vio);
+    }
+    return TS_CACHE_SCAN_RESULT_DONE;
+  }
+
+  //grab header and print url to outgoing vio
+  if (event == TS_EVENT_CACHE_SCAN_OBJECT) {
+    if (cstate->done) {
+      return TS_CACHE_SCAN_RESULT_DONE;
+    }
+    cache_infop = (TSCacheHttpInfo) edata;
+
+    TSMBuffer req_bufp, resp_bufp;
+    TSMLoc req_hdr_loc, resp_hdr_loc;
+    TSMLoc url_loc;
+
+    char *url;
+    int url_len;
+    const char s1[] = "URL: ", s2[] = "\n";
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, s1, sizeof(s1) - 1);
+    TSCacheHttpInfoReqGet(cache_infop, &req_bufp, &req_hdr_loc);
+    TSHttpHdrUrlGet(req_bufp, req_hdr_loc, &url_loc);
+    url = TSUrlStringGet(req_bufp, url_loc, &url_len);
+
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, url, url_len);
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, s2, sizeof(s2) - 1);
+
+    TSfree(url);
+    TSHandleMLocRelease(req_bufp, req_hdr_loc, url_loc);
+    TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_hdr_loc);
+
+
+    //print the response headers
+    TSCacheHttpInfoRespGet(cache_infop, &resp_bufp, &resp_hdr_loc);
+    cstate->total_bytes += TSMimeHdrLengthGet(resp_bufp, resp_hdr_loc);
+    TSMimeHdrPrint(resp_bufp, resp_hdr_loc, cstate->resp_buffer);
+    TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_hdr_loc);
+
+
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, s2, sizeof(s2) - 1);
+    if (!cstate->write_pending) {
+      cstate->write_pending = 1;
+      TSVIOReenable(cstate->write_vio);
+    }
+
+    cstate->total_items++;
+    return TS_CACHE_SCAN_RESULT_CONTINUE;
+  }
+  //CACHE_SCAN_DONE: ready to close the vc on the next write reenable
+  if (event == TS_EVENT_CACHE_SCAN_DONE) {
+    cstate->done = 1;
+    char s[512];
+    int s_len = snprintf(s, sizeof(s),
+                         "</pre></p>\n<p>%d total objects in cache</p>\n"
+                         "<form method=\"GET\" action=\"/show-cache\">"
+                         "Enter URL to delete: <input type=\"text\" size=\"40\" name=\"remove_url\">"
+                         "<input type=\"submit\"  value=\"Delete URL\">",
+                         cstate->total_items);
+    cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, s, s_len);
+    TSVIONBytesSet(cstate->write_vio, cstate->total_bytes);
+    if (!cstate->write_pending) {
+      cstate->write_pending = 1;
+      TSVIOReenable(cstate->write_vio);
+    }
+    return TS_CACHE_SCAN_RESULT_DONE;
+  }
+
+  TSError("Unknown event in handle_scan: %d", event);
+  return -1;
+}
+
+//----------------------------------------------------------------------------
+static int
+handle_accept(TSCont contp, TSEvent event, TSVConn vc)
+{
+  cache_scan_state *cstate = (cache_scan_state *) TSContDataGet(contp);
+
+  if (event == TS_EVENT_NET_ACCEPT) {
+    if (cstate) {
+      //setup vc, buffers
+      cstate->net_vc = vc;
+
+      cstate->req_buffer = TSIOBufferCreate();
+      cstate->resp_buffer = TSIOBufferCreate();
+      cstate->resp_reader = TSIOBufferReaderAlloc(cstate->resp_buffer);
+
+      cstate->read_vio = TSVConnRead(cstate->net_vc, contp, cstate->req_buffer, INT64_MAX);
+    } else {
+      TSVConnClose(vc);
+      TSContDestroy(contp);
+    }
+  } else {
+    //net_accept failed
+    if (cstate) {
+      TSfree(cstate);
+    }
+    TSContDestroy(contp);
+  }
+
+  return 0;
+}
+
+//----------------------------------------------------------------------------
+static void
+cleanup(TSCont contp)
+{
+
+  //shutdown vc and free memory
+  cache_scan_state *cstate = (cache_scan_state *) TSContDataGet(contp);
+
+  if (cstate) {
+    // cancel any pending cache scan actions, since we will be destroying the
+    // continuation
+    if (cstate->pending_action)
+      TSActionCancel(cstate->pending_action);
+
+    if (cstate->net_vc)
+      TSVConnShutdown(cstate->net_vc, 1, 1);
+
+    if (cstate->req_buffer) {
+      TSIOBufferDestroy(cstate->req_buffer);
+      cstate->req_buffer = NULL;
+    }
+
+    if (cstate->key_to_delete) {
+      if (TSCacheKeyDestroy(cstate->key_to_delete) == TS_ERROR) {
+        TSError("failed to destroy cache key");
+      }
+      cstate->key_to_delete = NULL;
+    }
+
+    if (cstate->resp_buffer) {
+      TSIOBufferDestroy(cstate->resp_buffer);
+      cstate->resp_buffer = NULL;
+    }
+
+    TSVConnClose(cstate->net_vc);
+    TSfree(cstate);
+  }
+  TSContDestroy(contp);
+}
+
+//----------------------------------------------------------------------------
+static int
+handle_io(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  cache_scan_state *cstate = (cache_scan_state *) TSContDataGet(contp);
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    {
+      //we don't care about the request, so just shut down the read vc
+      TSVConnShutdown(cstate->net_vc, 1, 0);
+      //setup the response headers so we are ready to write body
+      char hdrs[] = "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n";
+      cstate->total_bytes = TSIOBufferWrite(cstate->resp_buffer, hdrs, sizeof(hdrs) - 1);
+
+      if (cstate->key_to_delete) {
+        TSAction actionp = TSCacheRemove(contp, cstate->key_to_delete);
+        if (!TSActionDone(actionp)) {
+          cstate->pending_action = actionp;
+        }
+      } else {
+        char head[] = "<h3>Cache Contents:</h3>\n<p><pre>\n";
+        cstate->total_bytes += TSIOBufferWrite(cstate->resp_buffer, head, sizeof(head) - 1);
+        //start scan
+        TSAction actionp = TSCacheScan(contp, 0, 512000);
+        if (!TSActionDone(actionp)) {
+          cstate->pending_action = actionp;
+        }
+      }
+
+      return 0;
+    }
+  case TS_EVENT_VCONN_WRITE_READY:
+    {
+      TSDebug("cache_iter", "ndone: %" PRId64 " total_bytes: % " PRId64, TSVIONDoneGet(cstate->write_vio), cstate->total_bytes);
+      cstate->write_pending = 0;
+      // the cache scan handler should call vio reenable when there is
+      // available data
+      //TSVIOReenable(cstate->write_vio);
+      return 0;
+    }
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug("cache_iter", "write complete");
+  case TS_EVENT_VCONN_EOS:
+  default:
+    cstate->done = 1;
+    cleanup(contp);
+  }
+
+  return 0;
+}
+
+
+//----------------------------------------------------------------------------
+// handler for VConnection and CacheScan events
+static int
+cache_intercept(TSCont contp, TSEvent event, void *edata)
+{
+  TSDebug("cache_iter", "cache_intercept event: %d", event);
+
+  switch (event) {
+  case TS_EVENT_NET_ACCEPT:
+  case TS_EVENT_NET_ACCEPT_FAILED:
+    return handle_accept(contp, event, (TSVConn) edata);
+  case TS_EVENT_VCONN_READ_READY:
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_WRITE_READY:
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+    return handle_io(contp, event, edata);
+  case TS_EVENT_CACHE_SCAN:
+  case TS_EVENT_CACHE_SCAN_FAILED:
+  case TS_EVENT_CACHE_SCAN_OBJECT:
+  case TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED:
+  case TS_EVENT_CACHE_SCAN_OPERATION_FAILED:
+  case TS_EVENT_CACHE_SCAN_DONE:
+  case TS_EVENT_CACHE_REMOVE:
+  case TS_EVENT_CACHE_REMOVE_FAILED:
+    return handle_scan(contp, event, edata);
+  case TS_EVENT_ERROR:
+    cleanup(contp);
+    return 0;
+  default:
+    TSError("Unknown event in cache_intercept: %d", event);
+    cleanup(contp);
+    return 0;
+  }
+}
+
+// int unescapifyStr(char* buffer)
+//
+//   Unescapifies a URL without a making a copy.
+//    The passed in string is modified
+//
+int
+unescapifyStr(char *buffer)
+{
+  char *read = buffer;
+  char *write = buffer;
+  char subStr[3];
+
+  subStr[2] = '\0';
+  while (*read != '\0') {
+    if (*read == '%' && *(read + 1) != '\0' && *(read + 2) != '\0') {
+      subStr[0] = *(++read);
+      subStr[1] = *(++read);
+      *write = (char)strtol(subStr, (char **) NULL, 16);
+      read++;
+      write++;
+    } else if (*read == '+') {
+      *write = ' ';
+      write++;
+      read++;
+    } else {
+      *write = *read;
+      write++;
+      read++;
+    }
+  }
+  *write = '\0';
+
+  return (write - buffer);
+}
+
+//----------------------------------------------------------------------------
+static int
+setup_request(TSCont contp, TSHttpTxn txnp)
+{
+
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+  TSCont scan_contp;
+  const char *path, *query;
+  cache_scan_state *cstate;
+  int path_len, query_len;
+
+  TSAssert(contp == global_contp);
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header");
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return TS_SUCCESS;
+  }
+
+  if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve request url");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return TS_SUCCESS;
+  }
+
+  path = TSUrlPathGet(bufp, url_loc, &path_len);
+  if (!path) {
+    TSError("couldn't retrieve request path");
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return TS_SUCCESS;
+  }
+
+  query = TSUrlHttpQueryGet(bufp, url_loc, &query_len);
+
+  if (path_len == 10 && !strncmp(path, "show-cache", 10)) {
+    scan_contp = TSContCreate(cache_intercept, TSMutexCreate());
+    TSHttpTxnIntercept(scan_contp, txnp);
+    cstate = (cache_scan_state *) TSmalloc(sizeof(cache_scan_state));
+    memset(cstate, 0, sizeof(cache_scan_state));
+    cstate->http_txnp = txnp;
+
+    if (query && query_len > 11) {
+
+      char querybuf[2048];
+      query_len = (unsigned) query_len > sizeof(querybuf) - 1 ? sizeof(querybuf) - 1 : query_len;
+      char *start = querybuf, *end = querybuf + query_len;
+      size_t del_url_len;
+      memcpy(querybuf, query, query_len);
+      *end = '\0';
+      start = strstr(querybuf, "remove_url=");
+      if (start && (start == querybuf || *(start - 1) == '&')) {
+        start += 11;
+        if ((end = strstr(start, "&")) != NULL)
+          *end = '\0';
+        del_url_len = unescapifyStr(start);
+        end = start + del_url_len;
+
+        cstate->key_to_delete = TSCacheKeyCreate();
+        TSDebug("cache_iter", "deleting url: %s", start);
+
+        TSMBuffer urlBuf = TSMBufferCreate();
+        TSMLoc urlLoc;
+
+        TSUrlCreate(urlBuf, &urlLoc);
+        if (TSUrlParse(urlBuf, urlLoc, (const char **) &start, end) != TS_PARSE_DONE ||
+            TSCacheKeyDigestFromUrlSet(cstate->key_to_delete, urlLoc) != TS_SUCCESS) {
+          TSError("CacheKeyDigestFromUrlSet failed");
+          TSfree(cstate);
+          TSHandleMLocRelease(urlBuf, NULL, urlLoc);
+          TSCacheKeyDestroy(cstate->key_to_delete);
+          goto Ldone;
+        }
+        TSHandleMLocRelease(urlBuf, NULL, urlLoc);
+      }
+    }
+
+    TSContDataSet(scan_contp, cstate);
+    TSDebug("cache_iter", "setup cache intercept");
+  } else {
+    TSDebug("cache_iter", "not a cache iter request");
+  }
+
+Ldone:
+  TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return TS_SUCCESS;
+}
+
+//----------------------------------------------------------------------------
+// handler for http txn events
+static int
+cache_print_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    return setup_request(contp, (TSHttpTxn) edata);
+  default:
+    break;
+  }
+  TSHttpTxnReenable((TSHttpTxn) edata, TS_EVENT_HTTP_CONTINUE);
+  return TS_SUCCESS;
+}
+
+//----------------------------------------------------------------------------
+void
+TSPluginInit(int /* argc ATS_UNUSED */, const char */* argv ATS_UNUSED */[])
+{
+  global_contp = TSContCreate(cache_print_plugin, TSMutexCreate());
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, global_contp);
+}
diff --git a/example/file-1/file-1.c b/example/file-1/file-1.c
new file mode 100644
index 00000000..23d67d7b
--- /dev/null
+++ b/example/file-1/file-1.c
@@ -0,0 +1,68 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* file-1.c:  an example program that opens files and reads them
+ *            into a buffer
+ *
+ *
+ *	Usage:
+ *	  file-1.so <filename1> <filename2> ...
+ *
+ *              <filenamei> is the name of the ith file to
+ *              be read.
+ *
+ */
+
+#include <stdio.h>
+#include <ts/ts.h>
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSFile filep;
+  char buf[4096];
+  int i;
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "file_plugin";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  for (i = 1; i < argc; i++) {
+    filep = TSfopen(argv[i], "r");
+    if (!filep) {
+      continue;
+    }
+
+    while (TSfgets(filep, buf, 4096)) {
+      TSDebug("debug-file", "%s", buf);
+    }
+
+    TSfclose(filep);
+  }
+}
+
diff --git a/example/file-1/readme.txt b/example/file-1/readme.txt
new file mode 100644
index 00000000..b4a72855
--- /dev/null
+++ b/example/file-1/readme.txt
@@ -0,0 +1,35 @@
+About file-plugin.c
+
+This plugin simply reads a file and writes its contents to
+a buffer. 
+
+In a typical Traffic Server installation, this buffer is 
+written to traffic.out.
+
+A similar function is used in the append-transform plugin 
+which reads in text from a file, and appends the text to the 
+bodies of html response documents. (See the load function in
+append-transform.c).
+
+To use this plugin, you would need a line like this in  
+plugin.config:
+
+	file-1.so path/to/file.text
+
+Enter either an absolute or a relative pathname for the file.  
+If you use a relative pathname, the path must be specified with 
+respect to the Traffic Server install directory.  (That is, the path 
+contained in /etc/traffic_server.)
+
+The only function defined is TSPluginInit.
+
+It does the following:
+
+- opens the file specified in plugin.config, using
+	TSfopen
+
+- reads the content of the file into a buffer using 
+	TSfgets
+
+- closes the file using 
+	TSfclose
diff --git a/example/hello/hello.c b/example/hello/hello.c
new file mode 100644
index 00000000..e8906d3c
--- /dev/null
+++ b/example/hello/hello.c
@@ -0,0 +1,43 @@
+/** @file
+
+  an example hello world plugin
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "hello-world";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed. \n");
+  }
+
+  TSDebug("debug-hello", "Hello World!\n");
+}
diff --git a/example/intercept/intercept.cc b/example/intercept/intercept.cc
new file mode 100644
index 00000000..edd4132c
--- /dev/null
+++ b/example/intercept/intercept.cc
@@ -0,0 +1,553 @@
+/** @file
+
+  an example hello world plugin
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <ts/ts.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+// intercept plugin
+//
+// This plugin primarily demonstrates the use of server interceptions to allow a
+// plugin to act as an origin server. It also demonstrates how to use
+// TSVConnFdCreate to wrap a TCP connection to another server, and the how to use
+// the TSVConn APIs to transfer data between virtual connections.
+//
+// This plugin intercepts all cache misses and proxies them to a separate server
+// that is assumed to be running on localhost:60000. The plugin does no HTTP
+// processing at all, it simply shuffles data until the client closes the
+// request. The TSQA test test-server-intercept exercises this plugin. You can
+// enable extensive logging with the "intercept" diagnostic tag.
+
+#define PLUGIN "intercept"
+#define PORT 60000
+
+#define VDEBUG(fmt, ...) TSDebug(PLUGIN, fmt, ##__VA_ARGS__)
+
+#if DEBUG
+#define VERROR(fmt, ...) TSDebug(PLUGIN, fmt, ##__VA_ARGS__)
+#else
+#define VERROR(fmt, ...) TSError("[%s] %s: " fmt, PLUGIN, __FUNCTION__, ##__VA_ARGS__)
+#endif
+
+#define VIODEBUG(vio, fmt, ...) VDEBUG("vio=%p vio.cont=%p, vio.cont.data=%p, vio.vc=%p " fmt, \
+    (vio), TSVIOContGet(vio), TSContDataGet(TSVIOContGet(vio)), TSVIOVConnGet(vio), ##__VA_ARGS__)
+
+static TSCont TxnHook;
+static TSCont InterceptHook;
+
+static int InterceptInterceptionHook(TSCont contp, TSEvent event, void * edata);
+static int InterceptTxnHook(TSCont contp, TSEvent event, void * edata);
+
+// We are going to stream data between Traffic Server and an
+// external server. This structure represents the state of a
+// streaming I/O request. Is is directional (ie. either a read or
+// a write). We need two of these for each TSVConn; one to push
+// data into the TSVConn and one to pull data out.
+struct InterceptIOChannel
+{
+  TSVIO             vio;
+  TSIOBuffer        iobuf;
+  TSIOBufferReader  reader;
+
+  InterceptIOChannel() : vio(NULL), iobuf(NULL), reader(NULL) {
+  }
+
+  ~InterceptIOChannel() {
+    if (this->reader) {
+      TSIOBufferReaderFree(this->reader);
+    }
+
+    if (this->iobuf) {
+      TSIOBufferDestroy(this->iobuf);
+    }
+  }
+
+  void read(TSVConn vc, TSCont contp) {
+    TSReleaseAssert(this->vio == NULL);
+    TSReleaseAssert((this->iobuf = TSIOBufferCreate()));
+    TSReleaseAssert((this->reader = TSIOBufferReaderAlloc(this->iobuf)));
+
+    this->vio = TSVConnRead(vc, contp, this->iobuf, INT64_MAX);
+  }
+
+  void write(TSVConn vc, TSCont contp) {
+    TSReleaseAssert(this->vio == NULL);
+    TSReleaseAssert((this->iobuf = TSIOBufferCreate()));
+    TSReleaseAssert((this->reader = TSIOBufferReaderAlloc(this->iobuf)));
+
+    this->vio = TSVConnWrite(vc, contp, this->reader, INT64_MAX);
+  }
+
+};
+
+// A simple encapsulation of the IO state of a TSVConn. We need the TSVConn itself, and the
+// IO metadata for the read side and the write side.
+struct InterceptIO
+{
+  TSVConn             vc;
+  InterceptIOChannel  readio;
+  InterceptIOChannel  writeio;
+
+  void close() {
+    if (this->vc) {
+      TSVConnClose(this->vc);
+    }
+    this->vc = NULL;
+    this->readio.vio = this->writeio.vio = NULL;
+  }
+};
+
+// Interception proxy state block. From our perspective, Traffic
+// Server is the client, and the origin server on whose behalf we
+// are intercepting is the server. Hence the "client" and
+// "server" nomenclature here.
+struct InterceptState
+{
+  TSHttpTxn   txn;          // The transaction on whose behalf we are intercepting.
+
+  InterceptIO client;       // Server intercept VC state.
+  InterceptIO server;       // Intercept origin VC state.
+
+  InterceptState() : txn(NULL) {
+  }
+
+  ~InterceptState() {
+  }
+};
+
+// Return the InterceptIO control block that owns the given VC.
+static InterceptIO *
+InterceptGetThisSide(InterceptState * istate, TSVConn vc)
+{
+  return (istate->client.vc == vc) ? &istate->client : &istate->server;
+}
+
+// Return the InterceptIO control block that doesn't own the given VC.
+static InterceptIO *
+InterceptGetOtherSide(InterceptState * istate, TSVConn vc)
+{
+  return (istate->client.vc == vc) ? &istate->server : &istate->client;
+}
+
+// Evaluates to a human-readable name for a TSVConn in the
+// intercept proxy state.
+static const char *
+InterceptProxySide(const InterceptState * istate, const InterceptIO * io)
+{
+  return (io == &istate->client) ? "<client>"
+    : (io == &istate->server) ? "<server>"
+    : "<unknown>";
+}
+
+static const char *
+InterceptProxySideVC(const InterceptState * istate, TSVConn vc)
+{
+  return (istate->client.vc && vc == istate->client.vc) ? "<client>"
+    : (istate->server.vc && vc == istate->server.vc) ? "<server>"
+    : "<unknown>";
+}
+
+static bool
+InterceptAttemptDestroy(InterceptState * istate, TSCont contp)
+{
+  if (istate->server.vc == NULL && istate->client.vc == NULL) {
+    VDEBUG("destroying server intercept state istate=%p contp=%p", istate, contp);
+    TSContDataSet(contp, NULL);  // Force a crash if we get additional events.
+    TSContDestroy(contp);
+    delete istate;
+    return true;
+  }
+
+  return false;
+}
+
+union socket_type {
+  struct sockaddr_storage storage;
+  struct sockaddr         sa;
+  struct sockaddr_in      sin;
+  struct sockaddr_in6     sin6;
+};
+
+union argument_type {
+  void *            ptr;
+  intptr_t          ecode;
+  TSVConn           vc;
+  TSVIO             vio;
+  TSHttpTxn         txn;
+  InterceptState *  istate;
+
+  argument_type(void * _p) : ptr(_p) {}
+};
+
+static TSCont
+InterceptContCreate(TSEventFunc hook, TSMutex mutexp, void * data)
+{
+  TSCont contp;
+
+  TSReleaseAssert((contp = TSContCreate(hook, mutexp)));
+  TSContDataSet(contp, data);
+  return contp;
+}
+
+static bool
+InterceptShouldInterceptRequest(TSHttpTxn txn)
+{
+  // Normally, this function would inspect the request and
+  // determine whether it should be intercepted. We might examine
+  // the URL path, or some headers. For the sake of this example,
+  // we will intercept everything that is not a cache hit.
+
+  int status;
+  TSReleaseAssert(TSHttpTxnCacheLookupStatusGet(txn, &status) == TS_SUCCESS);
+  return status != TS_CACHE_LOOKUP_HIT_FRESH;
+}
+
+// This function is called in response to a READ_READY event. We
+// should transfer any data we find from one side of the transfer
+// to the other.
+static int64_t
+InterceptTransferData(InterceptIO * from, InterceptIO * to)
+{
+  TSIOBufferBlock   block;
+  int64_t           consumed = 0;
+
+  // Walk the list of buffer blocks in from the read VIO.
+  for (block = TSIOBufferReaderStart(from->readio.reader); block; block = TSIOBufferBlockNext(block)) {
+    int64_t remain = 0;
+    const char * ptr;
+
+    VDEBUG("attempting to transfer %" PRId64 " available bytes",  TSIOBufferBlockReadAvail(block, from->readio.reader));
+
+    // Take the data from each buffer block, and write it into
+    // the buffer of the write VIO.
+    ptr = TSIOBufferBlockReadStart(block, from->readio.reader, &remain);
+    while (ptr && remain) {
+      int64_t nbytes;
+
+      nbytes = TSIOBufferWrite(to->writeio.iobuf, ptr, remain);
+      remain -= nbytes;
+      ptr += nbytes;
+      consumed += nbytes;
+    }
+  }
+
+  VDEBUG("consumed %" PRId64 " bytes reading from vc=%p, writing to vc=%p", consumed, from->vc, to->vc);
+  if (consumed) {
+    TSIOBufferReaderConsume(from->readio.reader, consumed);
+    // Note that we don't have to call TSIOBufferProduce here.
+    // This is because data passed into TSIOBufferWrite is
+    // automatically "produced".
+  }
+
+  return consumed;
+}
+
+// Handle events from TSHttpTxnServerIntercept. The intercept
+// starts with TS_EVENT_NET_ACCEPT, and then continues with
+// TSVConn events.
+static int
+InterceptInterceptionHook(TSCont contp, TSEvent event, void * edata)
+{
+  argument_type arg(edata);
+
+  VDEBUG("contp=%p, event=%s (%d), edata=%p", contp, TSHttpEventNameLookup(event), event, arg.ptr);
+
+  switch (event) {
+  case TS_EVENT_NET_ACCEPT: {
+    // Set up the server intercept. We have the original
+    // TSHttpTxn from the continuation. We need to connect to the
+    // real origin and get ready to shuffle data around.
+    char        buf[INET_ADDRSTRLEN];
+    socket_type addr;
+    argument_type     cdata(TSContDataGet(contp));
+    InterceptState *  istate = new InterceptState();
+    int fd = -1;
+
+    // This event is delivered by the continuation that we
+    // attached in InterceptTxnHook, so the continuation data is
+    // the TSHttpTxn pointer.
+    VDEBUG("allocated server intercept state istate=%p for txn=%p", istate, cdata.txn);
+
+    // Set up a connection to our real origin, which will be
+    // 127.0.0.1:$PORT.
+    memset(&addr, 0, sizeof(addr));
+    addr.sin.sin_family = AF_INET;
+    addr.sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);  // XXX config option
+    addr.sin.sin_port = htons(PORT);                    // XXX config option
+
+    // Normally, we would use TSNetConnect to connect to a secondary service, but to demonstrate
+    // the use of TSVConnFdCreate, we do a blocking connect inline. This it not recommended for
+    // production plugins, since it might block an event thread for an arbitrary time.
+    fd = ::socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
+    TSReleaseAssert(fd != -1);
+
+    if (::connect(fd, &addr.sa, sizeof(addr.sin)) == -1) {
+      // We failed to connect to the intercepted origin. Abort the
+      // server intercept since we cannot handle it.
+      VDEBUG("connect failed with %s (%d)", strerror(errno), errno);
+      TSVConnAbort(arg.vc, TS_VC_CLOSE_ABORT);
+
+      delete istate;
+      TSContDestroy(contp);
+
+      return TS_EVENT_NONE;
+    }
+
+    VDEBUG("binding client vc=%p to %s:%u",
+        istate->client.vc, inet_ntop(AF_INET, &addr.sin.sin_addr, buf, sizeof(buf)), (unsigned)ntohs(addr.sin.sin_port));
+
+    istate->txn = cdata.txn;
+    istate->client.vc = arg.vc;
+    istate->server.vc = TSVConnFdCreate(fd);
+
+    // Reset the continuation data to be our intercept state
+    // block. We will need this so that we can access both of the
+    // VCs at the same time. We need to do this before calling
+    // TSNetConnect so that we can handle the failure case.
+    TSContDataSet(contp, istate);
+
+    // Start reading the request from the server intercept VC.
+    istate->client.readio.read(istate->client.vc, contp);
+    VIODEBUG(istate->client.readio.vio, "started %s read", InterceptProxySide(istate, &istate->client));
+
+    // Start reading the response from the intercepted origin server VC.
+    istate->server.readio.read(istate->server.vc, contp);
+    VIODEBUG(istate->server.readio.vio, "started %s read", InterceptProxySide(istate, &istate->server));
+
+    // Start writing the response to the server intercept VC.
+    istate->client.writeio.write(istate->client.vc, contp);
+    VIODEBUG(istate->client.writeio.vio, "started %s write", InterceptProxySide(istate, &istate->client));
+
+    // Start writing the request to the intercepted origin server VC.
+    istate->server.writeio.write(istate->server.vc, contp);
+    VIODEBUG(istate->server.writeio.vio, "started %s write", InterceptProxySide(istate, &istate->server));
+
+    // We should not do anything after the TSNetConnect call. The
+    // NET_CONNECT events take care of everything and we don't
+    // want to risk referencing any stale data here.
+
+    return TS_EVENT_NONE;
+  }
+  
+  case TS_EVENT_NET_ACCEPT_FAILED: {
+    // TS_EVENT_NET_ACCEPT_FAILED will be delivered if the
+    // transaction is cancelled before we start tunnelling
+    // through the server intercept. One way that this can happen
+    // is if the intercept is attached early, and then we server
+    // the document out of cache.
+    argument_type cdata(TSContDataGet(contp));
+
+    // There's nothing to do here except nuke the continuation
+    // that was allocated in InterceptTxnHook().
+    VDEBUG("cancelling server intercept request for txn=%p", cdata.txn);
+
+    TSContDestroy(contp);
+    return TS_EVENT_NONE;
+  }
+
+  case TS_EVENT_VCONN_READ_READY: {
+    argument_type cdata = TSContDataGet(contp);
+    TSVConn       vc    = TSVIOVConnGet(arg.vio);
+    InterceptIO * from  = InterceptGetThisSide(cdata.istate, vc);
+    InterceptIO * to    = InterceptGetOtherSide(cdata.istate, vc);;
+    int64_t       nbytes;
+
+    VIODEBUG(arg.vio, "ndone=%" PRId64 " ntodo=%" PRId64, TSVIONDoneGet(arg.vio), TSVIONTodoGet(arg.vio));
+    VDEBUG("reading vio=%p vc=%p, istate=%p is bound to client vc=%p and server vc=%p",
+        arg.vio, TSVIOVConnGet(arg.vio), cdata.istate, cdata.istate->client.vc, cdata.istate->server.vc);
+
+    if (to->vc == NULL) {
+      VDEBUG("closing %s vc=%p", InterceptProxySide(cdata.istate, from), from->vc);
+      from->close();
+    }
+
+    if (from->vc == NULL) {
+      VDEBUG("closing %s vc=%p", InterceptProxySide(cdata.istate, to), to->vc);
+      to->close();
+    }
+
+    if (InterceptAttemptDestroy(cdata.istate, contp)) {
+      return TS_EVENT_NONE;
+    }
+
+    VDEBUG("reading from %s (vc=%p), writing to %s (vc=%p)",
+        InterceptProxySide(cdata.istate, from), from->vc, InterceptProxySide(cdata.istate, to), to->vc);
+
+    nbytes = InterceptTransferData(from, to);
+
+    // Reenable the read VIO to get more events.
+    if (nbytes) {
+      TSVIO writeio = to->writeio.vio;
+      VIODEBUG(writeio, "WRITE VIO ndone=%" PRId64 " ntodo=%" PRId64, TSVIONDoneGet(writeio), TSVIONTodoGet(writeio));
+      TSVIOReenable(from->readio.vio); // Re-enable the read side.
+      TSVIOReenable(to->writeio.vio); // Reenable the write side.
+    }
+
+    return TS_EVENT_NONE;
+  }
+
+  case TS_EVENT_VCONN_WRITE_READY: {
+    // WRITE_READY events happen all the time, when the TSVConn
+    // buffer drains. There's no need to do anything with these
+    // because we only fill the buffer when we have data to read.
+    // The exception is where one side of the proxied connection
+    // has been closed. Then we want to close the other side.
+    argument_type cdata = TSContDataGet(contp);
+    TSVConn       vc    = TSVIOVConnGet(arg.vio);
+    InterceptIO * to    = InterceptGetThisSide(cdata.istate, vc);
+    InterceptIO * from  = InterceptGetOtherSide(cdata.istate, vc);;
+
+    // If the other side is closed, close this side too, but only if there
+    // we have drained the write buffer.
+    if (from->vc == NULL) {
+      VDEBUG("closing %s vc=%p with %" PRId64 " bytes to left",
+          InterceptProxySide(cdata.istate, to), to->vc, TSIOBufferReaderAvail(to->writeio.reader));
+      if (TSIOBufferReaderAvail(to->writeio.reader) == 0) {
+        to->close();
+      }
+    }
+
+    InterceptAttemptDestroy(cdata.istate, contp);
+    return TS_EVENT_NONE;
+  }
+
+  case TS_EVENT_ERROR:
+  case TS_EVENT_VCONN_EOS: {
+    // If we get an EOS on one side, we should just send and EOS
+    // on the other side too. The server intercept will always
+    // send us an EOS after Traffic Server has finished reading
+    // the response. Once that happens, we are also finished with
+    // the intercepted origin server. The same reasoning applies
+    // to receiving EOS from the intercepted origin server, and
+    // when handling errors.
+
+    TSVConn       vc    = TSVIOVConnGet(arg.vio);
+    argument_type cdata = TSContDataGet(contp);
+
+    InterceptIO * from  = InterceptGetThisSide(cdata.istate, vc);
+    InterceptIO * to    = InterceptGetOtherSide(cdata.istate, vc);;
+
+    VIODEBUG(arg.vio, "received EOS or ERROR from %s side", InterceptProxySideVC(cdata.istate, vc));
+
+    // Close the side that we received the EOS event from.
+    if (from) {
+      VDEBUG("%s writeio has %" PRId64 " bytes left",
+          InterceptProxySide(cdata.istate, from), TSIOBufferReaderAvail(from->writeio.reader));
+      from->close();
+    }
+
+    // Should we also close the other side? Well, that depends on whether the reader
+    // has drained the data. If we close too early they will see a truncated read.
+    if (to) {
+      VDEBUG("%s writeio has %" PRId64 " bytes left",
+          InterceptProxySide(cdata.istate, to), TSIOBufferReaderAvail(to->writeio.reader));
+      if (TSIOBufferReaderAvail(to->writeio.reader) == 0) {
+        to->close();
+      }
+    }
+
+    InterceptAttemptDestroy(cdata.istate, contp);
+    return event == TS_EVENT_ERROR ? TS_EVENT_ERROR : TS_EVENT_NONE;
+  }
+
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    // We read data forever, so we should never get a
+    // READ_COMPLETE.
+    VIODEBUG(arg.vio, "unexpected TS_EVENT_VCONN_READ_COMPLETE");
+    return TS_EVENT_NONE;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    // We write data forever, so we should never get a
+    // WRITE_COMPLETE.
+    VIODEBUG(arg.vio, "unexpected TS_EVENT_VCONN_WRITE_COMPLETE");
+    return TS_EVENT_NONE;
+
+  case TS_EVENT_VCONN_INACTIVITY_TIMEOUT:
+    VERROR("unexpected event %s (%d) edata=%p", TSHttpEventNameLookup(event), event, arg.ptr);
+    return TS_EVENT_ERROR;
+
+  default:
+    VERROR("unexpected event %s (%d) edata=%p", TSHttpEventNameLookup(event), event, arg.ptr);
+    return TS_EVENT_ERROR;
+  }
+}
+
+// Handle events that occur on the TSHttpTxn.
+static int
+InterceptTxnHook(TSCont contp, TSEvent event, void * edata)
+{
+  argument_type arg(edata);
+
+  VDEBUG("contp=%p, event=%s (%d), edata=%p", contp, TSHttpEventNameLookup(event), event, arg.ptr);
+
+  switch (event) {
+    case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE: {
+    if (InterceptShouldInterceptRequest(arg.txn)) {
+      TSCont c = InterceptContCreate(InterceptInterceptionHook, TSMutexCreate(), arg.txn);
+
+      VDEBUG("intercepting orgin server request for txn=%p, cont=%p", arg.txn, c);
+      TSHttpTxnServerIntercept(c, arg.txn);
+    }
+
+    break;
+  }
+
+  default:
+    VERROR("unexpected event %s (%d)", TSHttpEventNameLookup(event), event);
+    break;
+  }
+
+  TSHttpTxnReenable(arg.txn, TS_EVENT_HTTP_CONTINUE);
+  return TS_EVENT_NONE;
+}
+
+void
+TSPluginInit(int /* argc */, const char * /* argv */ [])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = (char *)PLUGIN;
+  info.vendor_name = (char *)"MyCompany";
+  info.support_email = (char *)"ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    VERROR("plugin registration failed\n");
+  }
+
+  // XXX accept hostname and port arguments
+
+  TxnHook = InterceptContCreate(InterceptTxnHook, NULL, NULL);
+  InterceptHook = InterceptContCreate(InterceptInterceptionHook, NULL, NULL);
+
+  // Wait until after the cache lookup to decide whether to
+  // intercept a request. For cache hits we will never intercept.
+  TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, TxnHook);
+}
diff --git a/example/lifecycle-plugin/lifecycle-plugin.c b/example/lifecycle-plugin/lifecycle-plugin.c
new file mode 100644
index 00000000..1b16a1c8
--- /dev/null
+++ b/example/lifecycle-plugin/lifecycle-plugin.c
@@ -0,0 +1,114 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* lifecycle-plugin.c: an example plugin to demonstrate the lifecycle hooks.
+ *                    of response body content
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <ts/ts.h>
+
+int
+CallbackHandler(TSCont this, TSEvent id, void* no_data) {
+  (void) this;
+  (void) no_data;
+  switch (id) {
+  case TS_EVENT_LIFECYCLE_PORTS_INITIALIZED:
+    TSDebug("lifecycle-plugin", "Proxy ports initialized");
+    break;
+  case TS_EVENT_LIFECYCLE_PORTS_READY:
+    TSDebug("lifecycle-plugin", "Proxy ports active");
+    break;
+  case TS_EVENT_LIFECYCLE_CACHE_READY:
+    TSDebug("lifecycle-plugin", "Cache ready");
+    break;
+  default:
+    TSDebug("lifecycle-plugin", "Unexpected event %d", id);
+    break;
+  }
+  return TS_EVENT_NONE;
+}
+
+int
+CheckVersion()
+{
+  const char *ts_version = TSTrafficServerVersionGet();
+  int result = 0;
+
+  if (ts_version) {
+    int major_ts_version = 0;
+    int minor_ts_version = 0;
+    int patch_ts_version = 0;
+
+    if (sscanf(ts_version, "%d.%d.%d", &major_ts_version, &minor_ts_version, &patch_ts_version) != 3) {
+      return 0;
+    }
+
+    /* Need at least TS 3.3.5 */
+    if (major_ts_version > 3 ||
+	(major_ts_version == 3 &&
+	 (minor_ts_version > 3 ||
+	  (minor_ts_version == 3 && patch_ts_version >= 5)))) {
+      result = 1;
+    }
+  }
+  return result;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+  TSCont cb;
+
+  (void)argc;
+  (void)argv;
+
+  info.plugin_name = "lifecycle-plugin";
+  info.vendor_name = "My Company";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[lifecycle-plugin] Plugin registration failed.\n");
+    goto Lerror;
+  }
+
+  if (!CheckVersion()) {
+    TSError("[lifecycle-plugin] Plugin requires Traffic Server 3.3.5 " "or later\n");
+    goto Lerror;
+  }
+
+  cb = TSContCreate(CallbackHandler, NULL);
+
+  TSLifecycleHookAdd(TS_LIFECYCLE_PORTS_INITIALIZED_HOOK, cb);
+  TSLifecycleHookAdd(TS_LIFECYCLE_PORTS_READY_HOOK, cb);
+  TSLifecycleHookAdd(TS_LIFECYCLE_CACHE_READY_HOOK, cb);
+
+  TSDebug("lifecycle-plugin", "online");
+
+  return;
+
+Lerror:
+  TSError("[amc-tranform] Unable to initialize plugin (disabled).\n");
+}
diff --git a/example/lifecycle-plugin/readme.txt b/example/lifecycle-plugin/readme.txt
new file mode 100644
index 00000000..eba37feb
--- /dev/null
+++ b/example/lifecycle-plugin/readme.txt
@@ -0,0 +1 @@
+This prints debug messages about the lifecycle hooks.
diff --git a/example/null-transform/null-transform.c b/example/null-transform/null-transform.c
new file mode 100644
index 00000000..2c23dea6
--- /dev/null
+++ b/example/null-transform/null-transform.c
@@ -0,0 +1,328 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* null-transform.c:  an example program that does a null transform
+ *                    of response body content
+ *
+ *
+ *
+ *	Usage:
+ *	  null-transform.so
+ *
+ *
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+typedef struct
+{
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+} MyData;
+
+static MyData *
+my_data_alloc()
+{
+  MyData *data;
+
+  data = (MyData *) TSmalloc(sizeof(MyData));
+  data->output_vio = NULL;
+  data->output_buffer = NULL;
+  data->output_reader = NULL;
+
+  return data;
+}
+
+static void
+my_data_destroy(MyData * data)
+{
+  if (data) {
+    if (data->output_buffer)
+      TSIOBufferDestroy(data->output_buffer);
+    TSfree(data);
+  }
+}
+
+static void
+handle_transform(TSCont contp)
+{
+  TSVConn output_conn;
+  TSIOBuffer buf_test;
+  TSVIO input_vio;
+  MyData *data;
+  int64_t towrite;
+  int64_t avail;
+
+  TSDebug("null-transform", "Entering handle_transform()");
+  /* Get the output (downstream) vconnection where we'll write data to. */
+
+  output_conn = TSTransformOutputVConnGet(contp);
+
+  /* Get the write VIO for the write operation that was performed on
+   * ourself. This VIO contains the buffer that we are to read from
+   * as well as the continuation we are to call when the buffer is
+   * empty. This is the input VIO (the write VIO for the upstream
+   * vconnection).
+   */
+  input_vio = TSVConnWriteVIOGet(contp);
+
+  /* Get our data structure for this operation. The private data
+   * structure contains the output VIO and output buffer. If the
+   * private data structure pointer is NULL, then we'll create it
+   * and initialize its internals.
+   */
+  data = TSContDataGet(contp);
+  if (!data) {
+    data = my_data_alloc();
+    data->output_buffer = TSIOBufferCreate();
+    data->output_reader = TSIOBufferReaderAlloc(data->output_buffer);
+    TSDebug("null-transform", "\tWriting %" PRId64 " bytes on VConn", TSVIONBytesGet(input_vio));
+    //data->output_vio = TSVConnWrite(output_conn, contp, data->output_reader, INT32_MAX);
+    data->output_vio = TSVConnWrite(output_conn, contp, data->output_reader, INT64_MAX);
+    // data->output_vio = TSVConnWrite(output_conn, contp, data->output_reader, TSVIONBytesGet(input_vio));
+    TSContDataSet(contp, data);
+  }
+
+  /* We also check to see if the input VIO's buffer is non-NULL. A
+   * NULL buffer indicates that the write operation has been
+   * shutdown and that the upstream continuation does not want us to send any
+   * more WRITE_READY or WRITE_COMPLETE events. For this simplistic
+   * transformation that means we're done. In a more complex
+   * transformation we might have to finish writing the transformed
+   * data to our output connection.
+   */
+  buf_test = TSVIOBufferGet(input_vio);
+
+  if (!buf_test) {
+    TSVIONBytesSet(data->output_vio, TSVIONDoneGet(input_vio));
+    TSVIOReenable(data->output_vio);
+    return;
+  }
+
+  /* Determine how much data we have left to read. For this null
+   * transform plugin this is also the amount of data we have left
+   * to write to the output connection.
+   */
+  towrite = TSVIONTodoGet(input_vio);
+  TSDebug("null-transform", "\ttoWrite is %" PRId64 "", towrite);
+
+  if (towrite > 0) {
+    /* The amount of data left to read needs to be truncated by
+     * the amount of data actually in the read buffer.
+     */
+    avail = TSIOBufferReaderAvail(TSVIOReaderGet(input_vio));
+    TSDebug("null-transform", "\tavail is %" PRId64 "", avail);
+    if (towrite > avail) {
+      towrite = avail;
+    }
+
+    if (towrite > 0) {
+      /* Copy the data from the read buffer to the output buffer. */
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), TSVIOReaderGet(input_vio), towrite, 0);
+
+      /* Tell the read buffer that we have read the data and are no
+       * longer interested in it.
+       */
+      TSIOBufferReaderConsume(TSVIOReaderGet(input_vio), towrite);
+
+      /* Modify the input VIO to reflect how much data we've
+       * completed.
+       */
+      TSVIONDoneSet(input_vio, TSVIONDoneGet(input_vio) + towrite);
+    }
+  }
+
+  /* Now we check the input VIO to see if there is data left to
+   * read.
+   */
+  if (TSVIONTodoGet(input_vio) > 0) {
+    if (towrite > 0) {
+      /* If there is data left to read, then we reenable the output
+       * connection by reenabling the output VIO. This will wake up
+       * the output connection and allow it to consume data from the
+       * output buffer.
+       */
+      TSVIOReenable(data->output_vio);
+
+      /* Call back the input VIO continuation to let it know that we
+       * are ready for more data.
+       */
+      TSContCall(TSVIOContGet(input_vio), TS_EVENT_VCONN_WRITE_READY, input_vio);
+    }
+  } else {
+    /* If there is no data left to read, then we modify the output
+     * VIO to reflect how much data the output connection should
+     * expect. This allows the output connection to know when it
+     * is done reading. We then reenable the output connection so
+     * that it can consume the data we just gave it.
+     */
+    TSVIONBytesSet(data->output_vio, TSVIONDoneGet(input_vio));
+    TSVIOReenable(data->output_vio);
+
+    /* Call back the input VIO continuation to let it know that we
+     * have completed the write operation.
+     */
+    TSContCall(TSVIOContGet(input_vio), TS_EVENT_VCONN_WRITE_COMPLETE, input_vio);
+  }
+}
+
+static int
+null_transform(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  /* Check to see if the transformation has been closed by a call to
+   * TSVConnClose.
+   */
+  TSDebug("null-transform", "Entering null_transform()");
+
+  if (TSVConnClosedGet(contp)) {
+    TSDebug("null-transform", "\tVConn is closed");
+    my_data_destroy(TSContDataGet(contp));
+    TSContDestroy(contp);
+    return 0;
+  } else {
+    switch (event) {
+    case TS_EVENT_ERROR:
+      {
+        TSVIO input_vio;
+
+        TSDebug("null-transform", "\tEvent is TS_EVENT_ERROR");
+        /* Get the write VIO for the write operation that was
+         * performed on ourself. This VIO contains the continuation of
+         * our parent transformation. This is the input VIO.
+         */
+        input_vio = TSVConnWriteVIOGet(contp);
+
+        /* Call back the write VIO continuation to let it know that we
+         * have completed the write operation.
+         */
+        TSContCall(TSVIOContGet(input_vio), TS_EVENT_ERROR, input_vio);
+      }
+      break;
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      TSDebug("null-transform", "\tEvent is TS_EVENT_VCONN_WRITE_COMPLETE");
+      /* When our output connection says that it has finished
+       * reading all the data we've written to it then we should
+       * shutdown the write portion of its connection to
+       * indicate that we don't want to hear about it anymore.
+       */
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+    case TS_EVENT_VCONN_WRITE_READY:
+      TSDebug("null-transform", "\tEvent is TS_EVENT_VCONN_WRITE_READY");
+    default:
+      TSDebug("null-transform", "\t(event is %d)", event);
+      /* If we get a WRITE_READY event or any other type of
+       * event (sent, perhaps, because we were reenabled) then
+       * we'll attempt to transform more data.
+       */
+      handle_transform(contp);
+      break;
+    }
+  }
+
+  return 0;
+}
+
+static int
+transformable(TSHttpTxn txnp)
+{
+  /*
+   *  We are only interested in transforming "200 OK" responses.
+   */
+
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSHttpStatus resp_status;
+  int retv;
+
+  TSDebug("null-transform", "Entering transformable()");
+
+  TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+  resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+  retv = (resp_status == TS_HTTP_STATUS_OK);
+
+  if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc) == TS_ERROR) {
+    TSError("[null-transform] Error releasing MLOC while checking " "header status\n");
+  }
+
+  TSDebug("null-transform", "Exiting transformable with return %d", retv);
+  return retv;
+}
+
+static void
+transform_add(TSHttpTxn txnp)
+{
+  TSVConn connp;
+
+  TSDebug("null-transform", "Entering transform_add()");
+  connp = TSTransformCreate(null_transform, txnp);
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+}
+
+static int
+transform_plugin(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  TSDebug("null-transform", "Entering transform_plugin()");
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    TSDebug("null-transform", "\tEvent is TS_EVENT_HTTP_READ_RESPONSE_HDR");
+    if (transformable(txnp)) {
+      transform_add(txnp);
+    }
+
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "null-transform";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[null-transform] Plugin registration failed.\n");
+    goto Lerror;
+  }
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(transform_plugin, NULL));
+  return;
+
+Lerror:
+  TSError("[null-tranform] Unable to initialize plugin (disabled).\n");
+}
diff --git a/example/null-transform/readme.txt b/example/null-transform/readme.txt
new file mode 100644
index 00000000..c22446a5
--- /dev/null
+++ b/example/null-transform/readme.txt
@@ -0,0 +1,112 @@
+The null-transform.c plugin performs a null transformation
+on response content. 
+
+The plugin is called each time Traffic Server reads an HTTP 
+response header.
+
+  --  The TSPluginInit function has a global hook
+      set up for the READ RESPONSE HDR event.
+
+This plugin follows the default behavior for transforms: 
+transformed content is cached. Therefore the transformation 
+of the response need happen only once, when the content is
+received from the origin server. To make sure this happens,
+the plugin checks for a "200 OK" server response header
+before transforming. 
+
+  -- This check is done in the subroutine called "transformable". 
+
+If the response is transformable, the plugin creates a 
+transformation, and adds it to the response transform
+hook. 
+
+  -- This is done in "transform_add" using 
+     TSTransformCreate and TSHttpTxnHookAdd.
+
+  -- The handler function for the transformation is
+     null_transform.
+
+When it is time to transform the response data, the 
+null_transform function is called. 
+
+The transformation acts as a one-way data pipe: response
+data comes in from an upstream vconnection (which could be
+an HTTP state machine or itself another transformation) and
+goes out to the downstream vconnection, whatever that might
+be. The transformation has to:
+
+(a)  Write transformed data to the downstream vconnection. 
+
+(b)  Copy data from the upstream vconnection's output buffer
+     to the downstream vconnection's input buffer. 
+
+(c)  Clean up when the transformation is complete (either if
+     it stopped because of an error or it finished transforming).
+
+Here is how this is implemented: the null_transform function
+(the transformation's handler function) first checks to make
+sure the transformation has not been closed (null_transform
+destroys itself if it finds out the transformation has been 
+closed). Then null_transform has a switch statement that 
+handles the following events: 
+
+  -- TS_EVENT_ERROR: if there is an error, null_transform
+     lets the downstream vconnection know that the write
+     operation is terminated (the downstream vconnection
+     should not expect any more data). 
+
+  -- TS_EVENT_VCONN_WRITE_COMPLETE: the downstream vconnection
+     has read all the data written to it. null_transform 
+     shuts down the write portion of the downstream vconnection,
+     meaning that the transformation does not want any more 
+     WRITE events from the downstream vconnection. 
+
+  -- TS_EVENT_VCONN_WRITE_READY: null_transform calls 
+     handle_transform to transform data.
+
+  -- All other events: call handle_transform. 
+
+In the handle_transform function, the transformation vconnection
+takes the role of the "vconnection user" (see the SDK Programmer's
+Guide).  
+
+handle_transform needs to initiate the transformation by a call
+to TSVConnWrite on the output vconnection. To do this, handle_transform
+has to:
+
+ -- get the output vconnection using TSTransformOutputVConnGet
+
+ -- get the input vio using TSVConnWriteVIOGet (the input vio
+    contains the total number of bytes to be written, and keeps
+    track of the number of bytes that the upstream vconnection
+    has written to the input buffer. When the transformation has
+    consumed data from the input buffer, it has to modify the 
+    input vio.)
+
+After calling TSVConnWrite, the transformation can expect to 
+receive WRITE_READY and WRITE_COMPLETE events from the downstream
+vconnection. 
+
+If there is data to read, handle_transform copies it over using
+TSIOBufferCopy. When done with the buffer, it calls
+TSIOBufferReaderConsume. If there is more data to read (than one
+buffer's worth), two things happen:
+
+ -- handle_transform wakes up the downstream vconnection using
+    TSVIOReenable
+
+ -- handle_transform wakes up the upstream vconnection, asking it
+    for more data, by using TSContCall and sending it a 
+    WRITE_READY event
+
+If there is no more data to read, handle_transform informs the 
+downstream vconnection using TSVIONBytesSet and TSVIOReenable.
+Then handle_transform sends the upstream vconnection the
+WRITE_COMPLETE event using TSContCall. 
+
+This is how the transformation receives the WRITE_COMPLETE event:
+when the downstream vconnection learns through the downstream
+(output) vio that there is no more data left to read (nbytes=ndone),
+the downstream vconnection sends WRITE_COMPLETE upstream.  
+
+
diff --git a/example/output-header/output-header.c b/example/output-header/output-header.c
new file mode 100644
index 00000000..34a7b813
--- /dev/null
+++ b/example/output-header/output-header.c
@@ -0,0 +1,170 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* output_hdr.c: a plugin prints out the client request header
+ *                 fields to stdout
+ * A sample internal plugin to use the HdrPrint functions and the TSIOBuffers
+ * that the functions untilize.
+ *
+ * The plugin simply prints all the incoming request headers
+ *
+ *   Note: tested on Solaris only.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#define DEBUG_TAG "output-header"
+
+static void
+handle_dns(TSHttpTxn txnp, TSCont contp ATS_UNUSED)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+
+  TSIOBuffer output_buffer;
+  TSIOBufferReader reader;
+  int total_avail;
+
+  TSIOBufferBlock block;
+  const char *block_start;
+  int64_t block_avail;
+
+  char *output_string;
+  int64_t output_len;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSDebug(DEBUG_TAG, "couldn't retrieve client request header");
+    TSError("couldn't retrieve client request header\n");
+    goto done;
+  }
+
+  output_buffer = TSIOBufferCreate();
+  reader = TSIOBufferReaderAlloc(output_buffer);
+
+  /* This will print  just MIMEFields and not
+     the http request line */
+  TSDebug(DEBUG_TAG, "Printing the hdrs ... ");
+  TSMimeHdrPrint(bufp, hdr_loc, output_buffer);
+
+  if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc) == TS_ERROR) {
+    TSDebug(DEBUG_TAG, "non-fatal: error releasing MLoc");
+    TSError("non-fatal: error releasing MLoc\n");
+  }
+
+  /* Find out how the big the complete header is by
+     seeing the total bytes in the buffer.  We need to
+     look at the buffer rather than the first block to
+     see the size of the entire header */
+  total_avail = TSIOBufferReaderAvail(reader);
+
+  /* Allocate the string with an extra byte for the string
+     terminator */
+  output_string = (char *) TSmalloc(total_avail + 1);
+  output_len = 0;
+
+  /* We need to loop over all the buffer blocks to make
+     sure we get the complete header since the header can
+     be in multiple blocks */
+  block = TSIOBufferReaderStart(reader);
+  while (block) {
+    block_start = TSIOBufferBlockReadStart(block, reader, &block_avail);
+
+    /* We'll get a block pointer back even if there is no data
+       left to read so check for this condition and break out of
+       the loop. A block with no data to read means we've exhausted
+       buffer of data since if there was more data on a later
+       block in the chain, this block would have been skipped over */
+    if (block_avail == 0) {
+      break;
+    }
+
+    memcpy(output_string + output_len, block_start, block_avail);
+    output_len += block_avail;
+
+    /* Consume the data so that we get to the next block */
+    TSIOBufferReaderConsume(reader, block_avail);
+
+    /* Get the next block now that we've consumed the
+       data off the last block */
+    block = TSIOBufferReaderStart(reader);
+  }
+
+  /* Terminate the string */
+  output_string[output_len] = '\0';
+  output_len++;
+
+  /* Free up the TSIOBuffer that we used to print out the header */
+  TSIOBufferReaderFree(reader);
+  TSIOBufferDestroy(output_buffer);
+
+  /* Although I'd never do this a production plugin, printf
+     the header so that we can see it's all there */
+  TSDebug("debug-output-header", "%s", output_string);
+
+  TSfree(output_string);
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static int
+hdr_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_OS_DNS:
+    handle_dns(txnp, contp);
+    return 0;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "output-header";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[PluginInit] Plugin registration failed.\n");
+    goto error;
+  }
+
+  TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, TSContCreate(hdr_plugin, NULL));
+
+error:
+  TSError("[PluginInit] Plugin not initialized");
+}
+
diff --git a/example/output-header/readme b/example/output-header/readme
new file mode 100644
index 00000000..96ee2329
--- /dev/null
+++ b/example/output-header/readme
@@ -0,0 +1,5 @@
+A sample internal plugin to use the HdrPrint functions and the TSIOBuffers 
+that the functions untilize.  
+
+The plugin simply prints all the incoming request headers
+
diff --git a/example/prefetch/prefetch-plugin-eg1.c b/example/prefetch/prefetch-plugin-eg1.c
new file mode 100644
index 00000000..72013dce
--- /dev/null
+++ b/example/prefetch/prefetch-plugin-eg1.c
@@ -0,0 +1,86 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  prefetch-plugin-eg1.c : an example plugin which interacts with
+                          Traffic Server's prefetch feature
+
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <ts/ts.h>
+#include <ts/experimental.h>
+
+TSPrefetchReturnCode
+my_preparse_hook(TSPrefetchHookID hook, TSPrefetchInfo * info)
+{
+  unsigned char *ip = (unsigned char *) &info->client_ip;
+
+  printf("preparse hook (%d): request from child %u.%u.%u.%u\n", hook, ip[0], ip[1], ip[2], ip[3]);
+
+
+  /* we will let TS parse the page */
+  return TS_PREFETCH_CONTINUE;
+}
+
+TSPrefetchReturnCode
+my_embedded_url_hook(TSPrefetchHookID hook, TSPrefetchInfo * info)
+{
+
+  unsigned char *ip = (unsigned char *) &info->client_ip;
+
+  printf("url hook (%d): url: %s %s child: %u.%u.%u.%u\n",
+         hook, info->embedded_url, (info->present_in_cache) ? "(present in cache)" : "", ip[0], ip[1], ip[2], ip[3]);
+
+  /*
+     We will select UDP for sending url and TCP for sending object
+   */
+
+  info->url_proto = TS_PREFETCH_PROTO_UDP;
+  info->url_response_proto = TS_PREFETCH_PROTO_TCP;
+
+  /* we can return TS_PREFETCH_DISCONTINUE if we dont want TS to prefetch
+     this url */
+
+  return TS_PREFETCH_CONTINUE;
+}
+
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "prefetch_plugin_eg1";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  /* register our hooks */
+  TSPrefetchHookSet(TS_PREFETCH_PRE_PARSE_HOOK, &my_preparse_hook);
+  TSPrefetchHookSet(TS_PREFETCH_EMBEDDED_URL_HOOK, &my_embedded_url_hook);
+}
diff --git a/example/prefetch/readme.txt b/example/prefetch/readme.txt
new file mode 100644
index 00000000..f7d1d8a5
--- /dev/null
+++ b/example/prefetch/readme.txt
@@ -0,0 +1,26 @@
+The test-hns-plugin tests the Parent Traffic Server handling of parse/prefetch
+rules. It prints information to 'stdout' at various stages to verify the
+correctness of the parse/prefetch module. It has the following options:
+
+-p. If 0, the plugin returns INK_PREFETCH_DISCONTINUE when called at the 
+    INK_PREFETCH_PRE_PARSE_HOOK. If 1, the plugin returns
+    INK_PREFETCH_CONTINUE.
+
+-u. If 0, the plugin returns INK_PREFETCH_DISCONTINUE when called at the 
+    INK_PREFETCH_EMBEDDED_URL_HOOK. If 1, the plugin returns
+    INK_PREFETCH_CONTINUE.
+
+-o. If 1, the plugin sets 'object_buf_status' field in the INKPrefetchInfo to
+    INK_PREFETCH_OBJ_BUF_NEEDED and expects to be called back with the object.
+
+-i. If 0, the plugin sets the 'url_response_proto' field in the 
+    INKPrefetchInfo to INK_PREFETCH_PROTO_UDP. If 1, it sets the 
+    'url_response_proto' field to INK_PREFETCH_PROTO_TCP.
+
+-d. Specifies the directory where the plugin will store all the prefetched
+    objects. All prefetched objects are stored in the PkgPreload format in 
+    the 'prefetched.objects' file in this directory.
+
+
+
+ 
diff --git a/example/prefetch/test-hns-plugin.c b/example/prefetch/test-hns-plugin.c
new file mode 100644
index 00000000..e1da4c95
--- /dev/null
+++ b/example/prefetch/test-hns-plugin.c
@@ -0,0 +1,248 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  prefetch-plugin-eg1.c : an example plugin which interacts with
+                          Traffic Server's prefetch feature
+
+*/
+
+/*
+This plugin tests the Parent Traffic Server handling of parse/prefetch
+rules. It prints information to 'stdout' at various stages to verify the
+correctness of the parse/prefetch module. It has the following options:
+
+-p. If 0, the plugin returns TS_PREFETCH_DISCONTINUE when called at the
+    TS_PREFETCH_PRE_PARSE_HOOK. If 1, the plugin returns
+    TS_PREFETCH_CONTINUE.
+
+-u. If 0, the plugin returns TS_PREFETCH_DISCONTINUE when called at the
+    TS_PREFETCH_EMBEDDED_URL_HOOK. If 1, the plugin returns
+    TS_PREFETCH_CONTINUE.
+
+-o. If 1, the plugin sets 'object_buf_status' field in the TSPrefetchInfo to
+    TS_PREFETCH_OBJ_BUF_NEEDED and expects to be called back with the object.
+    If 2, this field is set to TS_PREFETCH_OBJ_BUF_NEEDED_N_TRANSMITTED
+    which implies the object is transmitted to the child as well.
+
+-i. If 0, the plugin sets the 'url_response_proto' field in the
+    TSPrefetchInfo to TS_PREFETCH_PROTO_UDP. If 1, it sets the
+    'url_response_proto' field to TS_PREFETCH_PROTO_TCP.
+
+-d. Specifies the directory where the plugin will store all the prefetched
+    objects. All prefetched objects are stored in the PkgPreload format in
+    the 'prefetched.objects' file in this directory.
+
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ts/ts.h>
+#include <ts/experimental.h>
+
+/* We will register the following two hooks */
+
+#define TAG "test-hns-plugin"
+
+TSFile filep1 = NULL;
+static int pre_parse_cont = 0;
+static int embedded_url_cont = 0;
+static int url_proto = 0;
+static int embedded_object = 0;
+
+static TSMutex file_write_mutex;
+
+
+TSPrefetchReturnCode
+embedded_object_hook(TSPrefetchHookID hook, TSPrefetchInfo * info)
+{
+  TSIOBufferBlock block;
+  const char *block_start;
+  int64_t block_avail, total_avail;
+
+  TSMutexLock(file_write_mutex);
+
+  printf("(%s) >>> TS_PREFETCH_EMBEDDED_OBJECT_HOOK (%d)\n", TAG, hook);
+
+  printf("(%s) \tobject size for: %s is %lld\n",
+         TAG, info->embedded_url, (long long)TSIOBufferReaderAvail(info->object_buf_reader));
+
+  /* Get the embedded objects here */
+  total_avail = TSIOBufferReaderAvail(info->object_buf_reader);
+
+  printf("(%s) >>> TSIOBufferReaderAvail returns %lld\n", TAG, (long long)total_avail);
+
+  block = TSIOBufferReaderStart(info->object_buf_reader);
+  while (block) {
+    block_start = TSIOBufferBlockReadStart(block, info->object_buf_reader, &block_avail);
+
+    if (block_avail == 0) {
+      break;
+    }
+
+    /* Put the object fragment into the file */
+    TSfwrite(filep1, block_start, block_avail);
+    TSfflush(filep1);
+    TSIOBufferReaderConsume(info->object_buf_reader, block_avail);
+    block = TSIOBufferReaderStart(info->object_buf_reader);
+  }
+
+
+  TSIOBufferDestroy(info->object_buf);
+
+  TSMutexUnlock(file_write_mutex);
+
+  return 0;
+}
+
+TSPrefetchReturnCode
+embedded_url_hook(TSPrefetchHookID hook, TSPrefetchInfo* info)
+{
+
+  unsigned char *ip = (unsigned char *) &info->client_ip;
+
+  printf("(%s) >>> TS_PREFETCH_EMBEDDED_URL_HOOK (%d)\n", TAG, hook);
+
+  printf("(%s) \tURL: %s %s Child IP: %u.%u.%u.%u\n",
+         TAG, info->embedded_url, (info->present_in_cache) ? "(present in cache)" : "", ip[0], ip[1], ip[2], ip[3]);
+
+  /* We will select UDP for sending url and TCP for sending object */
+  if (embedded_object)
+    info->object_buf_status = (embedded_object == 1)
+      ? TS_PREFETCH_OBJ_BUF_NEEDED : TS_PREFETCH_OBJ_BUF_NEEDED_N_TRANSMITTED;
+  if (url_proto)
+    info->url_response_proto = TS_PREFETCH_PROTO_TCP;
+  else
+    info->url_response_proto = TS_PREFETCH_PROTO_UDP;
+
+
+  if (!embedded_url_cont) {
+    /* This will cause parent TS not to parse the HTML page */
+    printf("(%s) \tPlugin returns - TS_PREFETCH_DISCONTINUE\n", TAG);
+    return TS_PREFETCH_DISCONTINUE;
+
+  } else {
+    /* This will cause TS (MDE plugin) to prefetch the URL */
+    printf("(%s) \tURL Response Protocol: %s\n", TAG,
+           (info->url_response_proto == TS_PREFETCH_PROTO_TCP) ? "TS_PREFETCH_PROTO_TCP" : "TS_PREFETCH_PROTO_UDP");
+    printf("(%s) \tPlugin returns - TS_PREFETCH_CONTINUE\n", TAG);
+    return TS_PREFETCH_CONTINUE;
+  }
+}
+
+
+TSPrefetchReturnCode
+pre_parse_hook(TSPrefetchHookID hook, TSPrefetchInfo* info)
+{
+  unsigned char *ip = (unsigned char *) &info->client_ip;
+
+  printf("(%s) >>> TS_PREFETCH_PRE_PARSE_HOOK (%d)\n", TAG, hook);
+
+  printf("(%s) \tChild IP : %u.%u.%u.%u\n", TAG, ip[0], ip[1], ip[2], ip[3]);
+
+  if (!pre_parse_cont) {
+    /* This will cause parent TS not to parse the HTML page */
+    printf("(%s) \tPlugin returns - TS_PREFETCH_DISCONTINUE\n", TAG);
+    return TS_PREFETCH_DISCONTINUE;
+
+  } else {
+    /* we will let TS parse the page */
+    printf("(%s) \tPlugin returns - TS_PREFETCH_CONTINUE\n", TAG);
+    return TS_PREFETCH_CONTINUE;
+  }
+}
+
+
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  int c, arg;
+  extern char *optarg;
+  TSPluginRegistrationInfo plugin_info;
+  char file_name[512] = { 0 };
+  plugin_info.plugin_name = "test-prefetch";
+  plugin_info.vendor_name = "MyCompany";
+  plugin_info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &plugin_info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+    return;
+  }
+
+  while ((c = getopt(argc, (char *const *) argv, "p:u:i:o:d:")) != EOF) {
+    switch (c) {
+    case 'p':
+    case 'u':
+    case 'i':
+    case 'o':
+      if (!strcmp(optarg, "0"))
+        arg = 0;
+      else if (!strcmp(optarg, "1"))
+        arg = 1;
+      else if (!strcmp(optarg, "2"))
+        arg = 2;
+      else {
+        TSError("Invalid argument specified for option: %c\n", c);
+        return;
+      }
+      if (c == 'p')
+        pre_parse_cont = arg;
+      else if (c == 'u')
+        embedded_url_cont = arg;
+      else if (c == 'i')
+        url_proto = arg;
+      else
+        embedded_object = arg;
+      break;
+
+    case 'd':
+      sprintf(file_name, "%s/prefetched.objects", optarg);
+      break;
+    case '?':
+      TSError("Invalid argument specified\n");
+      return;
+    }
+  }
+
+  if (embedded_object) {
+    filep1 = TSfopen(file_name, "w");
+    if (!filep1) {
+      TSError("Cannot open file %s for writing\n", file_name);
+      return;
+    }
+    TSfwrite(filep1, "", 1);
+    TSfflush(filep1);
+
+    file_write_mutex = TSMutexCreate();
+  }
+
+  /* register our hooks */
+  TSPrefetchHookSet(TS_PREFETCH_PRE_PARSE_HOOK, &pre_parse_hook);
+  TSPrefetchHookSet(TS_PREFETCH_EMBEDDED_URL_HOOK, &embedded_url_hook);
+  TSPrefetchHookSet(TS_PREFETCH_EMBEDDED_OBJECT_HOOK, &embedded_object_hook);
+}
diff --git a/example/protocol/Protocol.c b/example/protocol/Protocol.c
new file mode 100644
index 00000000..d065c9dc
--- /dev/null
+++ b/example/protocol/Protocol.c
@@ -0,0 +1,154 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Protocol.h"
+#include "TxnSM.h"
+#include "ink_defs.h"
+#include <math.h>
+
+/* global variable */
+TSTextLogObject protocol_plugin_log;
+
+/* static variable */
+static TSAction pending_action;
+static int accept_port;
+static int server_port;
+
+/* Functions only seen in this file, should be static. */
+static void protocol_init(int accept_port, int server_port);
+static int accept_handler(TSCont contp, TSEvent event, void *edata);
+
+
+/* When the handle is called, the net_vc is returned. */
+static int
+accept_handler(TSCont contp, TSEvent event, void *edata)
+{
+  TSCont txn_sm;
+  TSMutex pmutex;
+
+  switch (event) {
+  case TS_EVENT_NET_ACCEPT:
+    /* Create a new mutex for the TxnSM, which is going
+       to handle the incoming request. */
+    pmutex = (TSMutex) TSMutexCreate();
+    txn_sm = (TSCont) TxnSMCreate(pmutex, (TSVConn) edata, server_port);
+
+    /* This is no reason for not grabbing the lock.
+       So skip the routine which handle LockTry failure case. */
+    TSMutexLockTry(pmutex); // TODO: why should it not check if we got the lock??
+    TSContCall(txn_sm, 0, NULL);
+    TSMutexUnlock(pmutex);
+    break;
+
+  default:
+    /* Something wrong with the network, if there are any
+       pending NetAccept, cancel them. */
+    if (pending_action && !TSActionDone(pending_action))
+      TSActionCancel(pending_action);
+
+    TSContDestroy(contp);
+    break;
+  }
+
+  return TS_EVENT_NONE;
+}
+
+static void
+protocol_init(int accept_port, int server_port ATS_UNUSED)
+{
+  TSCont contp;
+  int ret_val;
+
+  /* create customized log */
+  ret_val = TSTextLogObjectCreate("protocol", TS_LOG_MODE_ADD_TIMESTAMP, &protocol_plugin_log);
+  if (ret_val != TS_SUCCESS) {
+    TSError("failed to create log");
+  }
+
+  /* format of the log entries, for caching_status, 1 for HIT and 0 for MISS */
+  ret_val = TSTextLogObjectWrite(protocol_plugin_log, "timestamp filename servername caching_status\n\n");
+  if (ret_val != TS_SUCCESS) {
+    TSError("failed to write into log");
+  }
+
+  contp = TSContCreate(accept_handler, TSMutexCreate());
+
+  /* Accept network traffic from the accept_port.
+     When there are requests coming in, contp's handler
+     should be called, in this case, contp's handler
+     is accept_event, see AcceptSM.c */
+  pending_action = TSNetAccept(contp, accept_port, -1, 1);
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+  char *end;
+  int tmp;
+
+  info.plugin_name = "output-header";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[PluginInit] Plugin registration failed.\n");
+    goto error;
+  }
+
+
+  /* default value */
+  accept_port = 4666;
+  server_port = 4666;
+
+  if (argc < 3) {
+    TSDebug("protocol", "Usage: protocol.so accept_port server_port");
+    printf("[protocol_plugin] Usage: protocol.so accept_port server_port\n");
+    printf("[protocol_plugin] Wrong arguments. Using deafult ports.\n");
+  } else {
+    tmp = strtol(argv[1], &end, 10);
+    if (*end == '\0') {
+      accept_port = tmp;
+      TSDebug("protocol", "using accept_port %d", accept_port);
+      printf("[protocol_plugin] using accept_port %d\n", accept_port);
+    } else {
+      printf("[protocol_plugin] Wrong argument for accept_port.");
+      printf("Using deafult port %d\n", accept_port);
+    }
+
+    tmp = strtol(argv[2], &end, 10);
+    if (*end == '\0') {
+      server_port = tmp;
+      TSDebug("protocol", "using server_port %d", server_port);
+      printf("[protocol_plugin] using server_port %d\n", server_port);
+    } else {
+      printf("[protocol_plugin] Wrong argument for server_port.");
+      printf("Using deafult port %d\n", server_port);
+    }
+  }
+
+  protocol_init(accept_port, server_port);
+
+error:
+  TSError("[PluginInit] Plugin not initialized");
+}
diff --git a/example/protocol/Protocol.h b/example/protocol/Protocol.h
new file mode 100644
index 00000000..aeddd0d4
--- /dev/null
+++ b/example/protocol/Protocol.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef PROTOCOL_H
+#define PROTOCOL_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include <assert.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#include <ts/ts.h>
+
+#define MAX_SERVER_NAME_LENGTH 1024
+#define MAX_FILE_NAME_LENGTH 1024
+
+/* MAX_SERVER_NAME_LENGTH + MAX_FILE_NAME_LENGTH + strlen("\n\n") */
+#define MAX_REQUEST_LENGTH 2050
+
+#define set_handler(_d, _s) {_d = _s;}
+
+
+#endif /* PROTOCOL_H */
diff --git a/example/protocol/README.txt b/example/protocol/README.txt
new file mode 100644
index 00000000..5535fa02
--- /dev/null
+++ b/example/protocol/README.txt
@@ -0,0 +1,52 @@
+
+Protocol plugin example for SDK 3.0
+
+List of files
+-------------
+
+ - Protocol.c : Accept client requests and generate transaction state machines for each client request.
+ - TxnSM.c    : Implementation of handling a transaction.
+
+ - Protocol.h : Header file.
+ - TxnSM.h    : Header file.
+
+ - test/ProtocolServerTest.java : Synthetic server.
+ - test/ProtocolClientTest.java : Synthetic client.
+ - test/file_gen.sh : shell script to generate file list for testing.
+
+Protocol
+--------
+
+ - Request  : [server_name][space][file_name][space][\r\n]
+ - Response : File (if file is found)
+              Nothing (if file is not found)
+
+How to run proxy
+----------------
+
+ - Compile protocol.so and copy it under plugins directory.
+ - In plugin.config: 
+   protocol.so <accept_port> <server_port>
+   accept_port is the port to listen to client requests.
+   server_port is the port to connect to origin server.
+ - Debug tag: -T"protocol".
+
+How to run synthetic server
+---------------------------
+
+ - Compile ProtocolServerTest.java and get ProtocolServerTest.class.
+ - Run: java ProtocolServerTest <server_port>
+   server_port is the port synthetic server listens to requests.
+   server_port should match "server_port" argument passed to the plugin.
+
+How to run synthetic client
+---------------------------
+ - Compile ProtocolClientTest.java and get ProtocolClientTest.class.
+ - Run: java ProtocolClientTest -options. 
+ - Options include:
+   "-P" : proxy name (e.g. npdev.example.com)
+   "-p" : proxy port (match "accept_port" argument passed to the plugin)
+   "-s" : origin server name
+   "-f" : file list name (generated by file_gen.sh)
+   "-n" : number of pipelined client requests
+   "-l" : how many times of looping
diff --git a/example/protocol/TxnSM.c b/example/protocol/TxnSM.c
new file mode 100644
index 00000000..70fd63f3
--- /dev/null
+++ b/example/protocol/TxnSM.c
@@ -0,0 +1,979 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <sys/types.h>
+#include <netinet/in.h>
+#include "ink_defs.h"
+
+#include "TxnSM.h"
+
+extern TSTextLogObject protocol_plugin_log;
+
+/* Fix me: currently, tunnelling server_response from OS to both cache and
+   client doesn't work for client_vc. So write data first to cache and then
+   write cached data to client. */
+
+/* static functions */
+int main_handler(TSCont contp, TSEvent event, void *data);
+
+/* functions for clients */
+int state_start(TSCont contp, TSEvent event, void *data);
+int state_interface_with_client(TSCont contp, TSEvent event, TSVIO vio);
+int state_read_request_from_client(TSCont contp, TSEvent event, TSVIO vio);
+int state_send_response_to_client(TSCont contp, TSEvent event, TSVIO vio);
+
+/* functions for cache operation */
+int state_handle_cache_lookup(TSCont contp, TSEvent event, TSVConn vc);
+int state_handle_cache_read_response(TSCont contp, TSEvent event, TSVIO vio);
+int state_handle_cache_prepare_for_write(TSCont contp, TSEvent event, TSVConn vc);
+int state_write_to_cache(TSCont contp, TSEvent event, TSVIO vio);
+
+/* functions for servers */
+int state_build_and_send_request(TSCont contp, TSEvent event, void *data);
+int state_dns_lookup(TSCont contp, TSEvent event, TSHostLookupResult host_info);
+int state_connect_to_server(TSCont contp, TSEvent event, TSVConn vc);
+int state_interface_with_server(TSCont contp, TSEvent event, TSVIO vio);
+int state_send_request_to_server(TSCont contp, TSEvent event, TSVIO vio);
+int state_read_response_from_server(TSCont contp, TSEvent event, TSVIO vio);
+
+/* misc functions */
+int state_done(TSCont contp, TSEvent event, TSVIO vio);
+
+int send_response_to_client(TSCont contp);
+int prepare_to_die(TSCont contp);
+
+char *get_info_from_buffer(TSIOBufferReader the_reader);
+int is_request_end(char *buf);
+int parse_request(char *request, char *server_name, char *file_name);
+TSCacheKey CacheKeyCreate(char *file_name);
+
+/* Continuation handler is a function pointer, this function
+   is to assign the continuation handler to a specific function. */
+int
+main_handler(TSCont contp, TSEvent event, void *data)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+  TxnSMHandler q_current_handler = txn_sm->q_current_handler;
+
+  TSDebug("protocol", "main_handler (contp %p event %d)", contp, event);
+
+  /* handle common cases errors */
+  if (event == TS_EVENT_ERROR) {
+    return prepare_to_die(contp);
+  }
+
+  if (q_current_handler != (TxnSMHandler)&state_interface_with_server) {
+    if (event == TS_EVENT_VCONN_EOS) {
+      return prepare_to_die(contp);
+    }
+  }
+
+  TSDebug("protocol", "current_handler (%p)", q_current_handler);
+
+  return (*q_current_handler) (contp, event, data);
+}
+
+/* Create the Txn data structure and the continuation for the Txn. */
+TSCont
+TxnSMCreate(TSMutex pmutex, TSVConn client_vc, int server_port)
+{
+  TSCont contp;
+  TxnSM *txn_sm;
+
+  txn_sm = (TxnSM *) TSmalloc(sizeof(TxnSM));
+
+  txn_sm->q_mutex = pmutex;
+  txn_sm->q_pending_action = NULL;
+
+  /* Txn will use this server port to connect to the origin server. */
+  txn_sm->q_server_port = server_port;
+  /* The client_vc is returned by TSNetAccept, refer to Protocol.c. */
+  txn_sm->q_client_vc = client_vc;
+  /* The server_vc will be created if Txn connects to the origin server. */
+  txn_sm->q_server_vc = NULL;
+
+  txn_sm->q_client_read_vio = NULL;
+  txn_sm->q_client_write_vio = NULL;
+  txn_sm->q_client_request_buffer = NULL;
+  txn_sm->q_client_response_buffer = NULL;
+  txn_sm->q_client_request_buffer_reader = NULL;
+  txn_sm->q_client_response_buffer_reader = NULL;
+
+  txn_sm->q_server_read_vio = NULL;
+  txn_sm->q_server_write_vio = NULL;
+  txn_sm->q_server_request_buffer = NULL;
+  txn_sm->q_server_response_buffer = NULL;
+  txn_sm->q_server_request_buffer_reader = NULL;
+
+  /* Char buffers to store client request and server response. */
+  txn_sm->q_client_request = (char *) TSmalloc(sizeof(char) * (MAX_REQUEST_LENGTH + 1));
+  memset(txn_sm->q_client_request, '\0', (sizeof(char) * (MAX_REQUEST_LENGTH + 1)));
+  txn_sm->q_server_response = NULL;
+  txn_sm->q_server_response_length = 0;
+  txn_sm->q_block_bytes_read = 0;
+  txn_sm->q_cache_vc = NULL;
+  txn_sm->q_cache_response_length = 0;
+  txn_sm->q_cache_read_buffer = NULL;
+  txn_sm->q_cache_read_buffer_reader = NULL;
+
+  txn_sm->q_server_name = (char *) TSmalloc(sizeof(char) * (MAX_SERVER_NAME_LENGTH + 1));
+  txn_sm->q_file_name = (char *) TSmalloc(sizeof(char) * (MAX_FILE_NAME_LENGTH + 1));
+
+  txn_sm->q_key = NULL;
+  txn_sm->q_magic = TXN_SM_ALIVE;
+
+  /* Set the current handler to be state_start. */
+  set_handler(txn_sm->q_current_handler, &state_start);
+
+  contp = TSContCreate(main_handler, txn_sm->q_mutex);
+  TSContDataSet(contp, txn_sm);
+  return contp;
+}
+
+/* This function starts to read incoming client request data from client_vc */
+int
+state_start(TSCont contp, TSEvent event ATS_UNUSED, void *data ATS_UNUSED)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  if (!txn_sm->q_client_vc) {
+    return prepare_to_die(contp);
+  }
+
+  txn_sm->q_client_request_buffer = TSIOBufferCreate();
+  txn_sm->q_client_request_buffer_reader = TSIOBufferReaderAlloc(txn_sm->q_client_request_buffer);
+
+  if (!txn_sm->q_client_request_buffer || !txn_sm->q_client_request_buffer_reader) {
+    return prepare_to_die(contp);
+  }
+
+  /* Now the IOBuffer and IOBufferReader is ready, the data from
+     client_vc can be read into the IOBuffer. Since we don't know
+     the size of the client request, set the expecting size to be
+     INT64_MAX, so that we will always get TS_EVENT_VCONN_READ_READY
+     event, but never TS_EVENT_VCONN_READ_COMPLETE event. */
+  set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_interface_with_client);
+  txn_sm->q_client_read_vio = TSVConnRead(txn_sm->q_client_vc, (TSCont) contp, txn_sm->q_client_request_buffer, INT64_MAX);
+
+  return TS_SUCCESS;
+}
+
+/* This function is to call proper functions according to the
+   VIO argument. If it's read_vio, which means reading request from
+   client_vc, call state_read_request_from_client. If it's write_vio,
+   which means sending response to client_vc, call
+   state_send_response_to_client. If the event is TS_EVENT_VCONN_EOS,
+   which means the client closed socket and thus implies the client
+   drop all jobs between TxnSM and the client, so go to die. */
+int
+state_interface_with_client(TSCont contp, TSEvent event, TSVIO vio)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_interface_with_client");
+
+  txn_sm->q_pending_action = NULL;
+
+  if (vio == txn_sm->q_client_read_vio)
+    return state_read_request_from_client(contp, event, vio);
+
+  /* vio == txn_sm->q_client_write_vio */
+  return state_send_response_to_client(contp, event, vio);
+}
+
+/* Data is read from client_vc, if all data for the request is in,
+   parse it and do cache lookup. */
+int
+state_read_request_from_client(TSCont contp, TSEvent event, TSVIO vio ATS_UNUSED)
+{
+  int bytes_read, parse_result;
+  char *temp_buf;
+
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_read_request_from_client");
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+    bytes_read = TSIOBufferReaderAvail(txn_sm->q_client_request_buffer_reader);
+
+    if (bytes_read > 0) {
+      temp_buf = (char *) get_info_from_buffer(txn_sm->q_client_request_buffer_reader);
+      TSstrlcat(txn_sm->q_client_request, temp_buf, MAX_REQUEST_LENGTH + 1);
+      TSfree(temp_buf);
+
+      /* Check if the request is fully read, if so, do cache lookup. */
+      if (strstr(txn_sm->q_client_request, "\r\n\r\n") != NULL) {
+        temp_buf = (char *) TSmalloc(sizeof(char) * (strlen(txn_sm->q_client_request) + 1));
+        memcpy(temp_buf, txn_sm->q_client_request, strlen(txn_sm->q_client_request));
+        temp_buf[strlen(txn_sm->q_client_request)] = '\0';
+        parse_result = parse_request(temp_buf, txn_sm->q_server_name, txn_sm->q_file_name);
+        TSfree(temp_buf);
+
+        if (parse_result != 1)
+          return prepare_to_die(contp);
+
+        /* Start to do cache lookup */
+        TSDebug("protocol", "Key material: file name is %s*****", txn_sm->q_file_name);
+        txn_sm->q_key = (TSCacheKey)CacheKeyCreate(txn_sm->q_file_name);
+
+        set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_handle_cache_lookup);
+        txn_sm->q_pending_action = TSCacheRead(contp, txn_sm->q_key);
+
+        return TS_SUCCESS;
+      }
+    }
+
+    /* The request is not fully read, reenable the read_vio. */
+    TSVIOReenable(txn_sm->q_client_read_vio);
+    break;
+
+  default:                     /* Shouldn't get here, prepare to die. */
+    return prepare_to_die(contp);
+
+  }
+  return TS_SUCCESS;
+}
+
+/* This function handle the cache lookup result. If MISS, try to
+   open cache write_vc for writing. Otherwise, use the vc returned
+   by the cache to read the data from the cache. */
+int
+state_handle_cache_lookup(TSCont contp, TSEvent event, TSVConn vc)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+  int64_t response_size;
+  int ret_val;
+
+  TSDebug("protocol", "enter state_handle_cache_lookup");
+
+  switch (event) {
+  case TS_EVENT_CACHE_OPEN_READ:
+    TSDebug("protocol", "cache hit!!!");
+    /* Cache hit. */
+
+    /* Write log */
+    ret_val = TSTextLogObjectWrite(protocol_plugin_log, "%s %s %d \n", txn_sm->q_file_name, txn_sm->q_server_name, 1);
+    if (ret_val != TS_SUCCESS)
+      TSError("fail to write into log");
+
+    txn_sm->q_cache_vc = vc;
+    txn_sm->q_pending_action = NULL;
+
+    /* Get the size of the cached doc. */
+    response_size = TSVConnCacheObjectSizeGet(txn_sm->q_cache_vc);
+
+    /* Allocate IOBuffer to store data from the cache. */
+    txn_sm->q_client_response_buffer = TSIOBufferCreate();
+    txn_sm->q_client_response_buffer_reader = TSIOBufferReaderAlloc(txn_sm->q_client_response_buffer);
+    txn_sm->q_cache_read_buffer = TSIOBufferCreate();
+    txn_sm->q_cache_read_buffer_reader = TSIOBufferReaderAlloc(txn_sm->q_cache_read_buffer);
+
+    if (!txn_sm->q_client_response_buffer ||
+        !txn_sm->q_client_response_buffer_reader ||
+        !txn_sm->q_cache_read_buffer || !txn_sm->q_cache_read_buffer_reader) {
+      return prepare_to_die(contp);
+    }
+
+    /* Read doc from the cache. */
+    set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_handle_cache_read_response);
+    txn_sm->q_cache_read_vio = TSVConnRead(txn_sm->q_cache_vc, contp, txn_sm->q_cache_read_buffer, response_size);
+
+    break;
+
+  case TS_EVENT_CACHE_OPEN_READ_FAILED:
+    /* Cache miss or error, open cache write_vc. */
+    TSDebug("protocol", "cache miss or error!!!");
+    /* Write log */
+    ret_val = TSTextLogObjectWrite(protocol_plugin_log, "%s %s %d \n", txn_sm->q_file_name, txn_sm->q_server_name, 0);
+
+    if (ret_val != TS_SUCCESS)
+      TSError("fail to write into log");
+
+    set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_handle_cache_prepare_for_write);
+    txn_sm->q_pending_action = TSCacheWrite(contp, txn_sm->q_key);
+    break;
+
+  default:
+    /* unknown event, abort transaction */
+    return prepare_to_die(contp);
+  }
+
+  return TS_SUCCESS;
+}
+
+static void
+load_buffer_cache_data(TxnSM * txn_sm)
+{
+  /* transfer the data from the cache buffer (which must
+     fully be consumed on a VCONN_READY event, to the
+     server response buffer */
+  int rdr_avail = TSIOBufferReaderAvail(txn_sm->q_cache_read_buffer_reader);
+
+  TSDebug("protocol", "entering buffer_cache_data");
+  TSDebug("protocol", "loading %d bytes to buffer reader", rdr_avail);
+
+  TSAssert(rdr_avail > 0);
+
+  TSIOBufferCopy(txn_sm->q_client_response_buffer,     /* (cache response buffer) */
+                  txn_sm->q_cache_read_buffer_reader,   /* (transient buffer)      */
+                  rdr_avail, 0);
+
+  TSIOBufferReaderConsume(txn_sm->q_cache_read_buffer_reader, rdr_avail);
+}
+
+/* If the document is fully read out of the cache, close the
+   cache read_vc, send the document to the client. Otherwise,
+   reenable the read_vio to read more data out. If some error
+   occurs, close the read_vc, open write_vc for writing the doc
+   into the cache.*/
+int
+state_handle_cache_read_response(TSCont contp, TSEvent event, TSVIO vio ATS_UNUSED)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_handle_cache_read_response");
+
+  txn_sm->q_pending_action = NULL;
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    load_buffer_cache_data(txn_sm);
+    TSVConnClose(txn_sm->q_cache_vc);
+    txn_sm->q_cache_vc = NULL;
+    txn_sm->q_cache_read_vio = NULL;
+    txn_sm->q_cache_write_vio = NULL;
+    TSIOBufferReaderFree(txn_sm->q_cache_read_buffer_reader);
+    TSIOBufferDestroy(txn_sm->q_cache_read_buffer);
+    txn_sm->q_cache_read_buffer_reader = NULL;
+    txn_sm->q_cache_read_buffer = NULL;
+    return send_response_to_client(contp);
+
+  case TS_EVENT_VCONN_READ_READY:
+    load_buffer_cache_data(txn_sm);
+
+    TSVIOReenable(txn_sm->q_cache_read_vio);
+    break;
+
+  default:
+    /* Error */
+    if (txn_sm->q_cache_vc) {
+      TSVConnClose(txn_sm->q_cache_vc);
+      txn_sm->q_cache_vc = NULL;
+      txn_sm->q_cache_read_vio = NULL;
+      txn_sm->q_cache_write_vio = NULL;
+    }
+
+    /* Open the write_vc, after getting doc from the origin server,
+       write the doc into the cache. */
+    set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_handle_cache_prepare_for_write);
+    TSAssert(txn_sm->q_pending_action == NULL);
+    txn_sm->q_pending_action = TSCacheWrite(contp, txn_sm->q_key);
+    break;
+
+  }
+  return TS_SUCCESS;
+}
+
+/* The cache processor call us back with the vc to use for writing
+   data into the cache.
+   In case of error, abort txn. */
+int
+state_handle_cache_prepare_for_write(TSCont contp, TSEvent event, TSVConn vc)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_handle_cache_prepare_for_write");
+
+  txn_sm->q_pending_action = NULL;
+
+  switch (event) {
+  case TS_EVENT_CACHE_OPEN_WRITE:
+    txn_sm->q_cache_vc = vc;
+    break;
+  default:
+    TSError("can't open cache write_vc, aborting txn");
+    txn_sm->q_cache_vc = NULL;
+    return prepare_to_die(contp);
+    break;
+  }
+  return state_build_and_send_request(contp, 0, NULL);
+}
+
+/* Cache miss or error case. Start the process to send the request
+   the origin server. */
+int
+state_build_and_send_request(TSCont contp, TSEvent event ATS_UNUSED, void *data ATS_UNUSED)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_build_and_send_request");
+
+  txn_sm->q_pending_action = NULL;
+
+  txn_sm->q_server_request_buffer = TSIOBufferCreate();
+  txn_sm->q_server_request_buffer_reader = TSIOBufferReaderAlloc(txn_sm->q_server_request_buffer);
+
+  txn_sm->q_server_response_buffer = TSIOBufferCreate();
+  txn_sm->q_cache_response_buffer_reader = TSIOBufferReaderAlloc(txn_sm->q_server_response_buffer);
+
+  if (!txn_sm->q_server_request_buffer ||
+      !txn_sm->q_server_request_buffer_reader ||
+      !txn_sm->q_server_response_buffer || !txn_sm->q_cache_response_buffer_reader) {
+    return prepare_to_die(contp);
+  }
+
+  /* Marshal request */
+  TSIOBufferWrite(txn_sm->q_server_request_buffer, txn_sm->q_client_request, strlen(txn_sm->q_client_request));
+
+  /* First thing to do is to get the server IP from the server host name. */
+  set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_dns_lookup);
+  TSAssert(txn_sm->q_pending_action == NULL);
+  txn_sm->q_pending_action = TSHostLookup(contp, txn_sm->q_server_name, strlen(txn_sm->q_server_name));
+
+  TSAssert(txn_sm->q_pending_action);
+  TSDebug("protocol", "initiating host lookup");
+
+  return TS_SUCCESS;
+}
+
+/* If Host lookup is successfully, connect to that IP. */
+int
+state_dns_lookup(TSCont contp, TSEvent event, TSHostLookupResult host_info)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+  struct sockaddr const* q_server_addr;
+  struct sockaddr_in ip_addr;
+
+  TSDebug("protocol", "enter state_dns_lookup");
+
+  /* Can't find the server IP. */
+  if (event != TS_EVENT_HOST_LOOKUP || !host_info) {
+    return prepare_to_die(contp);
+  }
+  txn_sm->q_pending_action = NULL;
+
+  /* Get the server IP from data structure TSHostLookupResult. */
+  q_server_addr = TSHostLookupResultAddrGet(host_info);
+
+  /* Connect to the server using its IP. */
+  set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_connect_to_server);
+  TSAssert(txn_sm->q_pending_action == NULL);
+  TSAssert(q_server_addr->sa_family == AF_INET); /* NO IPv6 in this plugin */
+
+  memcpy(&ip_addr, q_server_addr, sizeof(ip_addr));
+  ip_addr.sin_port = txn_sm->q_server_port;
+  txn_sm->q_pending_action = TSNetConnect(contp, (struct sockaddr const*)&ip_addr);
+
+  return TS_SUCCESS;
+}
+
+/* Net Processor calls back, if succeeded, the net_vc is returned.
+   Note here, even if the event is TS_EVENT_NET_CONNECT, it doesn't
+   mean the net connection is set up because TSNetConnect is non-blocking.
+   Do VConnWrite to the net_vc, if fails, that means there is no net
+   connection. */
+int
+state_connect_to_server(TSCont contp, TSEvent event, TSVConn vc)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_connect_to_server");
+
+  /* TSNetConnect failed. */
+  if (event != TS_EVENT_NET_CONNECT) {
+    return prepare_to_die(contp);
+  }
+  txn_sm->q_pending_action = NULL;
+
+  txn_sm->q_server_vc = vc;
+
+  /* server_vc will be used to write request and read response. */
+  set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_send_request_to_server);
+
+  /* Actively write the request to the net_vc. */
+  txn_sm->q_server_write_vio = TSVConnWrite(txn_sm->q_server_vc, contp,
+                                             txn_sm->q_server_request_buffer_reader, strlen(txn_sm->q_client_request));
+  return TS_SUCCESS;
+}
+
+/* Net Processor calls back, if write complete, wait for the response
+   coming in, otherwise, reenable the write_vio. */
+int
+state_send_request_to_server(TSCont contp, TSEvent event, TSVIO vio)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_send_request_to_server");
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSVIOReenable(vio);
+    break;
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    vio = NULL;
+
+    /* Waiting for the incoming response. */
+    set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_interface_with_server);
+    txn_sm->q_server_read_vio = TSVConnRead(txn_sm->q_server_vc, contp, txn_sm->q_server_response_buffer, INT64_MAX);
+    break;
+
+    /* it could be failure of TSNetConnect */
+  default:
+    return prepare_to_die(contp);
+  }
+  return TS_SUCCESS;
+}
+
+/* Call correct handler according to the vio type. */
+int
+state_interface_with_server(TSCont contp, TSEvent event, TSVIO vio)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_interface_with_server");
+
+  txn_sm->q_pending_action = NULL;
+
+  switch (event) {
+    /* This is returned from cache_vc. */
+  case TS_EVENT_VCONN_WRITE_READY:
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    return state_write_to_cache(contp, event, vio);
+    /* Otherwise, handle events from server. */
+  case TS_EVENT_VCONN_READ_READY:
+    /* Actually, we shouldn't get READ_COMPLETE because we set bytes
+       count to be INT64_MAX. */
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    return state_read_response_from_server(contp, event, vio);
+
+    /* all data of the response come in. */
+  case TS_EVENT_VCONN_EOS:
+    TSDebug("protocol", "get server eos");
+    /* There is no more use of server_vc, close it. */
+    if (txn_sm->q_server_vc) {
+      TSVConnClose(txn_sm->q_server_vc);
+      txn_sm->q_server_vc = NULL;
+    }
+    txn_sm->q_server_read_vio = NULL;
+    txn_sm->q_server_write_vio = NULL;
+
+    /* Check if the response is good */
+    if (txn_sm->q_server_response_length == 0) {
+      /* This is the bad response. Close client_vc. */
+      if (txn_sm->q_client_vc) {
+        TSVConnClose(txn_sm->q_client_vc);
+        txn_sm->q_client_vc = NULL;
+      }
+      txn_sm->q_client_read_vio = NULL;
+      txn_sm->q_client_write_vio = NULL;
+
+      /* Close cache_vc as well. */
+      if (txn_sm->q_cache_vc) {
+        TSVConnClose(txn_sm->q_cache_vc);
+        txn_sm->q_cache_vc = NULL;
+      }
+      txn_sm->q_cache_write_vio = NULL;
+      return state_done(contp, 0, NULL);
+    }
+
+    if (txn_sm->q_cache_response_length >= txn_sm->q_server_response_length) {
+      /* Write is complete, close the cache_vc. */
+      TSVConnClose(txn_sm->q_cache_vc);
+      txn_sm->q_cache_vc = NULL;
+      txn_sm->q_cache_write_vio = NULL;
+      TSIOBufferReaderFree(txn_sm->q_cache_response_buffer_reader);
+
+      /* Open cache_vc to read data and send to client. */
+      set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_handle_cache_lookup);
+      txn_sm->q_pending_action = TSCacheRead(contp, txn_sm->q_key);
+    } else {                    /* not done with writing into cache */
+
+      TSDebug("protocol", "cache_response_length is %d, server response length is %d", txn_sm->q_cache_response_length,
+               txn_sm->q_server_response_length);
+      TSVIOReenable(txn_sm->q_cache_write_vio);
+    }
+
+  default:
+    break;
+  }
+
+  return TS_SUCCESS;
+}
+
+/* The response comes in. If the origin server finishes writing, it
+   will close the socket, so the event returned from the net_vc is
+   TS_EVENT_VCONN_EOS. By this event, TxnSM knows all data of the
+   response arrives and so parse it, save a copy in the cache and
+   send the doc to the client. If reading is not done, reenable the
+   read_vio. */
+int
+state_read_response_from_server(TSCont contp, TSEvent event ATS_UNUSED, TSVIO vio ATS_UNUSED)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+  int bytes_read = 0;
+
+  TSDebug("protocol", "enter state_read_response_from_server");
+
+  bytes_read = TSIOBufferReaderAvail(txn_sm->q_cache_response_buffer_reader);
+
+  if ((bytes_read > 0) && (txn_sm->q_cache_vc)) {
+    /* If this is the first write, do TSVConnWrite, otherwise, simply
+       reenable q_cache_write_vio. */
+    if (txn_sm->q_server_response_length == 0) {
+      txn_sm->q_cache_write_vio = TSVConnWrite(txn_sm->q_cache_vc,
+                                                contp, txn_sm->q_cache_response_buffer_reader, bytes_read);
+    } else {
+      TSAssert(txn_sm->q_server_response_length > 0);
+      TSVIOReenable(txn_sm->q_cache_write_vio);
+      txn_sm->q_block_bytes_read = bytes_read;
+/*
+	    txn_sm->q_cache_write_vio = TSVConnWrite (txn_sm->q_cache_vc,
+						       contp,
+						       txn_sm->q_cache_response_buffer_reader,
+						       bytes_read);
+						       */
+    }
+  }
+
+  txn_sm->q_server_response_length += bytes_read;
+  TSDebug("protocol", "bytes read is %d, total response length is %d", bytes_read, txn_sm->q_server_response_length);
+
+  return TS_SUCCESS;
+}
+
+/* If the whole doc has been written into the cache, send the response
+   to the client, otherwise, reenable the read_vio. */
+int
+state_write_to_cache(TSCont contp, TSEvent event, TSVIO vio)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_write_to_cache");
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSVIOReenable(txn_sm->q_cache_write_vio);
+    return TS_SUCCESS;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug("protocol", "nbytes %" PRId64 ", ndone %" PRId64, TSVIONBytesGet(vio), TSVIONDoneGet(vio));
+    /* Since the first write is through TSVConnWrite, which aleady consume
+       the data in cache_buffer_reader, don't consume it again. */
+    if (txn_sm->q_cache_response_length > 0 && txn_sm->q_block_bytes_read > 0)
+      TSIOBufferReaderConsume(txn_sm->q_cache_response_buffer_reader, txn_sm->q_block_bytes_read);
+
+    txn_sm->q_cache_response_length += TSVIONBytesGet(vio);
+
+    /* If not all data have been read in, we have to reenable the read_vio */
+    if (txn_sm->q_server_vc != NULL) {
+      TSDebug("protocol", "re-enable server_read_vio");
+      TSVIOReenable(txn_sm->q_server_read_vio);
+      return TS_SUCCESS;
+    }
+
+    if (txn_sm->q_cache_response_length >= txn_sm->q_server_response_length) {
+      /* Write is complete, close the cache_vc. */
+      TSDebug("protocol", "close cache_vc, cache_response_length is %d, server_response_lenght is %d",
+               txn_sm->q_cache_response_length, txn_sm->q_server_response_length);
+      TSVConnClose(txn_sm->q_cache_vc);
+      txn_sm->q_cache_vc = NULL;
+      txn_sm->q_cache_write_vio = NULL;
+      TSIOBufferReaderFree(txn_sm->q_cache_response_buffer_reader);
+
+      /* Open cache_vc to read data and send to client. */
+      set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_handle_cache_lookup);
+      txn_sm->q_pending_action = TSCacheRead(contp, txn_sm->q_key);
+    } else {                    /* not done with writing into cache */
+
+      TSDebug("protocol", "re-enable cache_write_vio");
+      TSVIOReenable(txn_sm->q_cache_write_vio);
+    }
+    return TS_SUCCESS;
+  default:
+    break;
+  }
+
+  /* Something wrong if getting here. */
+  return prepare_to_die(contp);
+}
+
+/* If the response has been fully written into the client_vc,
+   which means this txn is done, close the client_vc. Otherwise,
+   reenable the write_vio. */
+int
+state_send_response_to_client(TSCont contp, TSEvent event, TSVIO vio)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_send_response_to_client");
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSDebug("protocol", " . wr ready");
+    TSDebug("protocol", "write_ready: nbytes %" PRId64", ndone %" PRId64, TSVIONBytesGet(vio), TSVIONDoneGet(vio));
+    TSVIOReenable(txn_sm->q_client_write_vio);
+    break;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug("protocol", " . wr complete");
+    TSDebug("protocol", "write_complete: nbytes %" PRId64 ", ndone %" PRId64, TSVIONBytesGet(vio), TSVIONDoneGet(vio));
+    /* Finished sending all data to client, close client_vc. */
+    if (txn_sm->q_client_vc) {
+      TSVConnClose(txn_sm->q_client_vc);
+      txn_sm->q_client_vc = NULL;
+    }
+    txn_sm->q_client_read_vio = NULL;
+    txn_sm->q_client_write_vio = NULL;
+
+    return state_done(contp, 0, NULL);
+
+  default:
+    TSDebug("protocol", " . default handler");
+    return prepare_to_die(contp);
+
+  }
+
+  TSDebug("protocol", "leaving send_response_to_client");
+
+  return TS_SUCCESS;
+}
+
+
+/* There is something wrong, abort client, server and cache vc
+   if they exist. */
+int
+prepare_to_die(TSCont contp)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter prepare_to_die");
+  if (txn_sm->q_client_vc) {
+    TSVConnAbort(txn_sm->q_client_vc, 1);
+    txn_sm->q_client_vc = NULL;
+  }
+  txn_sm->q_client_read_vio = NULL;
+  txn_sm->q_client_write_vio = NULL;
+
+  if (txn_sm->q_server_vc) {
+    TSVConnAbort(txn_sm->q_server_vc, 1);
+    txn_sm->q_server_vc = NULL;
+  }
+  txn_sm->q_server_read_vio = NULL;
+  txn_sm->q_server_write_vio = NULL;
+
+  if (txn_sm->q_cache_vc) {
+    TSVConnAbort(txn_sm->q_cache_vc, 1);
+    txn_sm->q_cache_vc = NULL;
+  }
+  txn_sm->q_cache_read_vio = NULL;
+  txn_sm->q_cache_write_vio = NULL;
+
+  return state_done(contp, 0, NULL);
+}
+
+int
+state_done(TSCont contp, TSEvent event ATS_UNUSED, TSVIO vio ATS_UNUSED)
+{
+  TxnSM *txn_sm = (TxnSM *) TSContDataGet(contp);
+
+  TSDebug("protocol", "enter state_done");
+
+  if (txn_sm->q_pending_action && !TSActionDone(txn_sm->q_pending_action)) {
+    TSDebug("protocol", "cancelling pending action %p", txn_sm->q_pending_action);
+    TSActionCancel(txn_sm->q_pending_action);
+  } else if (txn_sm->q_pending_action) {
+    TSDebug("protocol", "action is done %p", txn_sm->q_pending_action);
+  }
+
+  txn_sm->q_pending_action = NULL;
+  txn_sm->q_mutex = NULL;
+
+  if (txn_sm->q_client_request_buffer) {
+    if (txn_sm->q_client_request_buffer_reader)
+      TSIOBufferReaderFree(txn_sm->q_client_request_buffer_reader);
+    TSIOBufferDestroy(txn_sm->q_client_request_buffer);
+    txn_sm->q_client_request_buffer = NULL;
+    txn_sm->q_client_request_buffer_reader = NULL;
+  }
+
+  if (txn_sm->q_client_response_buffer) {
+    if (txn_sm->q_client_response_buffer_reader)
+      TSIOBufferReaderFree(txn_sm->q_client_response_buffer_reader);
+
+    TSIOBufferDestroy(txn_sm->q_client_response_buffer);
+    txn_sm->q_client_response_buffer = NULL;
+    txn_sm->q_client_response_buffer_reader = NULL;
+  }
+
+  if (txn_sm->q_cache_read_buffer) {
+    if (txn_sm->q_cache_read_buffer_reader)
+      TSIOBufferReaderFree(txn_sm->q_cache_read_buffer_reader);
+    TSIOBufferDestroy(txn_sm->q_cache_read_buffer);
+    txn_sm->q_cache_read_buffer = NULL;
+    txn_sm->q_cache_read_buffer_reader = NULL;
+  }
+
+  if (txn_sm->q_server_request_buffer) {
+    if (txn_sm->q_server_request_buffer_reader)
+      TSIOBufferReaderFree(txn_sm->q_server_request_buffer_reader);
+    TSIOBufferDestroy(txn_sm->q_server_request_buffer);
+    txn_sm->q_server_request_buffer = NULL;
+    txn_sm->q_server_request_buffer_reader = NULL;
+  }
+
+  if (txn_sm->q_server_response_buffer) {
+    TSIOBufferDestroy(txn_sm->q_server_response_buffer);
+    txn_sm->q_server_response_buffer = NULL;
+  }
+
+  if (txn_sm->q_server_name) {
+    TSfree(txn_sm->q_server_name);
+    txn_sm->q_server_name = NULL;
+  }
+
+  if (txn_sm->q_file_name) {
+    TSfree(txn_sm->q_file_name);
+    txn_sm->q_file_name = NULL;
+  }
+
+  if (txn_sm->q_key)
+    TSCacheKeyDestroy(txn_sm->q_key);
+
+  if (txn_sm->q_client_request) {
+    TSfree(txn_sm->q_client_request);
+    txn_sm->q_client_request = NULL;
+  }
+
+  if (txn_sm->q_server_response) {
+    TSfree(txn_sm->q_server_response);
+    txn_sm->q_server_response = NULL;
+  }
+
+  if (txn_sm) {
+    txn_sm->q_magic = TXN_SM_DEAD;
+    TSfree(txn_sm);
+  }
+  TSContDestroy(contp);
+  return TS_EVENT_NONE;
+}
+
+/* Write the data into the client_vc. */
+int
+send_response_to_client(TSCont contp)
+{
+  TxnSM *txn_sm;
+  int response_len;
+
+  TSDebug("protocol", "enter send_response_to_client");
+
+  txn_sm = (TxnSM *) TSContDataGet(contp);
+  response_len = TSIOBufferReaderAvail(txn_sm->q_client_response_buffer_reader);
+
+  TSDebug("protocol", " . resp_len is %d", response_len);
+
+  set_handler(txn_sm->q_current_handler, (TxnSMHandler)&state_interface_with_client);
+  txn_sm->q_client_write_vio = TSVConnWrite(txn_sm->q_client_vc, (TSCont) contp,
+                                             txn_sm->q_client_response_buffer_reader, response_len);
+  return TS_SUCCESS;
+}
+
+/* Read data out through the_reader and save it in a char buffer. */
+char *
+get_info_from_buffer(TSIOBufferReader the_reader)
+{
+  char *info;
+  char *info_start;
+
+  int64_t read_avail, read_done;
+  TSIOBufferBlock blk;
+  char *buf;
+
+  if (!the_reader)
+    return NULL;
+
+  read_avail = TSIOBufferReaderAvail(the_reader);
+
+  info = (char *) TSmalloc(sizeof(char) * read_avail);
+  if (info == NULL)
+    return NULL;
+  info_start = info;
+
+  /* Read the data out of the reader */
+  while (read_avail > 0) {
+    blk = TSIOBufferReaderStart(the_reader);
+    buf = (char *) TSIOBufferBlockReadStart(blk, the_reader, &read_done);
+    memcpy(info, buf, read_done);
+    if (read_done > 0) {
+      TSIOBufferReaderConsume(the_reader, read_done);
+      read_avail -= read_done;
+      info += read_done;
+    }
+  }
+
+  return info_start;
+}
+
+/* Check if the end token is in the char buffer. */
+int
+is_request_end(char *buf)
+{
+  char *temp = strstr(buf, " \n\n");
+  if (!temp)
+    return 0;
+  return 1;
+}
+
+/* Parse the server_name and file name from the request. */
+int
+parse_request(char *request, char *server_name, char *file_name)
+{
+  char *temp = strtok(request, " ");
+  if (temp != NULL)
+    TSstrlcpy(server_name, temp, MAX_SERVER_NAME_LENGTH + 1);
+  else
+    return 0;
+
+  temp = strtok(NULL, " ");
+  if (temp != NULL)
+    TSstrlcpy(file_name, temp, MAX_FILE_NAME_LENGTH + 1);
+  else
+    return 0;
+
+  return 1;
+}
+
+/* Create 128-bit cache key based on the input string, in this case,
+   the file_name of the requested doc. */
+TSCacheKey
+CacheKeyCreate(char *file_name)
+{
+  TSCacheKey key;
+
+  /* TSCacheKeyCreate is to allocate memory space for the key */
+  key = TSCacheKeyCreate();
+
+  /* TSCacheKeyDigestSet is to compute TSCackeKey from the input string */
+  TSCacheKeyDigestSet(key, file_name, strlen(file_name));
+  return key;
+}
diff --git a/example/protocol/TxnSM.h b/example/protocol/TxnSM.h
new file mode 100644
index 00000000..2876f5ae
--- /dev/null
+++ b/example/protocol/TxnSM.h
@@ -0,0 +1,84 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef TXN_SM_H
+#define TXN_SM_H
+
+#include "Protocol.h"
+
+typedef int (*TxnSMHandler) (TSCont contp, TSEvent event, void *data);
+
+TSCont TxnSMCreate(TSMutex pmutex, TSVConn client_vc, int server_port);
+
+#define TXN_SM_ALIVE 0xAAAA0123
+#define TXN_SM_DEAD  0xFEE1DEAD
+#define TXN_SM_ZERO  0x00001111
+
+/* The Txn State Machine */
+typedef struct _TxnSM
+{
+  unsigned int q_magic;
+
+  TSMutex q_mutex;
+  TSAction q_pending_action;
+  TxnSMHandler q_current_handler;
+
+  TSVConn q_client_vc;
+  TSVConn q_server_vc;
+
+  char *q_client_request;
+  char *q_server_response;
+
+  char *q_file_name;
+  TSCacheKey q_key;
+
+  char *q_server_name;
+  int q_server_port;
+
+  TSVIO q_client_read_vio;
+  TSVIO q_client_write_vio;
+  TSIOBuffer q_client_request_buffer;
+  TSIOBuffer q_client_response_buffer;
+  TSIOBufferReader q_client_request_buffer_reader;
+  TSIOBufferReader q_client_response_buffer_reader;
+
+  TSVIO q_server_read_vio;
+  TSVIO q_server_write_vio;
+  TSIOBuffer q_server_request_buffer;
+  TSIOBuffer q_server_response_buffer;
+  TSIOBufferReader q_server_request_buffer_reader;
+  int q_server_response_length;
+  int q_block_bytes_read;
+  int q_cache_response_length;
+
+  /* Cache related */
+  TSVConn q_cache_vc;
+  TSIOBufferReader q_cache_response_buffer_reader;
+  TSVIO q_cache_read_vio;
+  TSVIO q_cache_write_vio;
+  TSIOBuffer q_cache_read_buffer;
+  TSIOBufferReader q_cache_read_buffer_reader;
+
+} TxnSM;
+
+#endif /* Txn_SM_H */
diff --git a/example/protocol/test/ProtocolClientTest.java b/example/protocol/test/ProtocolClientTest.java
new file mode 100644
index 00000000..71cfecc6
--- /dev/null
+++ b/example/protocol/test/ProtocolClientTest.java
@@ -0,0 +1,198 @@
+//  Licensed to the Apache Software Foundation (ASF) under one
+//  or more contributor license agreements.  See the NOTICE file
+//  distributed with this work for additional information
+//  regarding copyright ownership.  The ASF licenses this file
+//  to you under the Apache License, Version 2.0 (the
+//  "License"); you may not use this file except in compliance
+//  with the License.  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import java.util.*;
+import java.io.*;
+import java.net.*;
+
+class ProtocolClient
+{
+  protected String host;
+  protected String proxy;
+  protected int port;
+  
+  // Constructor
+  public ProtocolClient(String host, String proxy, int port)
+  {
+    this.host = host;
+    this.proxy = proxy;
+    this.port = port;
+  }// End of constructor
+  
+  // Method connect()
+  public void connect(String fileName)
+  {
+    try
+      {
+	Socket client = new Socket(proxy, port);
+	
+	// Create output stream and input stream
+	BufferedInputStream inStream = new BufferedInputStream(client.getInputStream());
+	BufferedOutputStream outStream = new BufferedOutputStream(client.getOutputStream());
+	
+	// send out request
+	byte[] request = marshalRequest (fileName);
+	outStream.write (request);
+	outStream.flush ();
+
+	// Print out response, actually pattern mapping can be done here
+	// to verify the response is correct.
+	String responseBody = unmarshalResponse (inStream);
+	System.out.println(responseBody);
+	
+	// Close socket
+	client.close();
+      } catch (UnknownHostException uhe) {
+	//System.out.println("Unknown host " + host);
+	uhe.printStackTrace();
+      } catch (IOException ioe) {
+	//System.out.println("IOException " + ioe);
+	ioe.printStackTrace();
+      } catch (Exception e) {
+	e.printStackTrace();
+      }
+      
+  }// End of connect()
+
+  protected byte[] marshalRequest (String fileName) throws Exception
+  {
+    String requestStr = new String();
+    requestStr = requestStr.concat (host);
+    requestStr = requestStr.concat (" ");
+    requestStr = requestStr.concat (fileName);
+    requestStr = requestStr.concat (" \r\n\r\n");
+
+    System.out.println (requestStr);
+
+    byte[] request = requestStr.getBytes();
+    return request;
+  }
+
+  protected String unmarshalResponse (BufferedInputStream responseStream) throws Exception
+  {
+    byte[] newObject = new byte[0];
+    byte[] oldObject = new byte[0];
+    byte[] buffer = new byte[1024];
+    int bytesRead = 0;
+    while ((bytesRead = responseStream.read(buffer)) != -1)
+      {
+	oldObject = newObject;
+	newObject = new byte[oldObject.length + bytesRead];
+	for (int i = 0; i < oldObject.length; i++)
+	  newObject[i] = oldObject[i];
+	for (int i = 0; i < bytesRead; i++)
+	  newObject[oldObject.length + i] = buffer[i];
+      }
+    
+    String responseBody = new String (newObject);
+    return responseBody;
+  }
+
+}// End of class
+
+//*******************************************************
+// Test of ProtocolClient 
+//*******************************************************
+
+public class ProtocolClientTest
+{
+  public static void main(String[] args)
+  {
+    // default setting
+    String host = "localhost";
+    String proxy = "localhost";
+    String fileName = null;
+    int port = 4665;
+    int loop = 1;
+    int pipeline = 1;
+
+
+    for (int i = 0; i < args.length; i++)
+      {
+	if (args[i].equals("-P") == true && (i + 1) < args.length)
+	  {
+	    proxy = args[i + 1];
+	    i ++;
+	  }
+	if (args[i].equals("-p") == true && (i + 1) < args.length)
+	  {
+	    port = Integer.parseInt (args[i + 1]);
+	    i ++;
+	  }
+	if (args[i].equals("-s") == true && (i + 1) < args.length)
+	  {
+	    host = args[i + 1];
+	    i ++;
+	  }
+	if (args[i].equals("-f") == true && (i + 1) < args.length)
+	  {
+	    fileName = args[i + 1];
+	    i ++;
+	  }
+	if (args[i].equals("-c") == true && (i + 1) < args.length)
+	  {
+	    pipeline = Integer.parseInt (args[i + 1]);
+	    i ++;
+	  }
+	if (args[i].equals("-l") == true && (i + 1) < args.length)
+	  {
+	    loop = Integer.parseInt (args[i + 1]);
+	    i ++;
+	  }
+      }
+    
+
+    Vector fileVector = new Vector ();
+    File sourceFile = new File (fileName);
+
+    if (!sourceFile.canRead ())
+      {
+	System.out.println("Usage: input file doesn't exist");
+      }
+    else
+      {
+	try
+	  {
+	    LineNumberReader sourceFileReader = 
+	      new LineNumberReader (new FileReader (sourceFile));
+	    
+	    // Read fileNames from the file.
+	    String currentFileName;
+	    
+	    while ((currentFileName = sourceFileReader.readLine()) != null)
+		fileVector.addElement (currentFileName);
+	  }
+	catch (IOException ioe)
+	  {
+	    ioe.printStackTrace();
+	  }
+	catch (Exception e)
+	  {
+	    e.printStackTrace();
+	  }
+      }
+
+    // Call ProtocolClient and make connection to server through socket.
+    for (int i = 0; i < loop; i++)
+      {
+	for (int j = 0; j < fileVector.size(); j++)
+	  {
+	    ProtocolClient protocolClient = new ProtocolClient(host, proxy, port);
+	    protocolClient.connect(fileVector.elementAt(j).toString());
+	  }
+      }
+  } // End of main function
+}// End of class
diff --git a/example/protocol/test/ProtocolServerTest.java b/example/protocol/test/ProtocolServerTest.java
new file mode 100644
index 00000000..8dd31930
--- /dev/null
+++ b/example/protocol/test/ProtocolServerTest.java
@@ -0,0 +1,181 @@
+//  Licensed to the Apache Software Foundation (ASF) under one
+//  or more contributor license agreements.  See the NOTICE file
+//  distributed with this work for additional information
+//  regarding copyright ownership.  The ASF licenses this file
+//  to you under the Apache License, Version 2.0 (the
+//  "License"); you may not use this file except in compliance
+//  with the License.  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+class ProtocolServer extends Thread
+{
+  protected ServerSocket listener = null;
+  protected static ProtocolServer instance = null;
+
+  public ProtocolServer (int port)
+  {
+    try
+      {
+	listener = new ServerSocket(port);
+      }
+    catch(IOException ioe)
+      {
+	ioe.printStackTrace();
+      }
+  }
+  
+  public synchronized void run ()
+  {
+    while (true)
+      {
+	try
+	  {
+	    Socket socket = listener.accept();
+	    new ProtocolRequestHandler(socket).start();
+	  }
+	catch (IOException ioe)
+	  {
+	    ioe.printStackTrace();
+	  }
+      }
+  }
+
+  public static ProtocolServer getInstance (int port)
+  {
+    if (instance == null)
+      {
+	instance = new ProtocolServer (port);
+      }
+    return instance;
+  }
+}// end of class ProtocolServer
+
+class ProtocolRequestHandler extends Thread
+{
+  protected Socket socket = null;
+  protected String requestBody;
+
+  // constructor
+  public ProtocolRequestHandler (Socket socket)
+  {
+    this.socket = socket;
+  }
+
+  public synchronized void run ()
+  {
+    try 
+      {
+	// unmarshal the request
+	System.out.println ("call unmarshalRequest");
+	requestBody = unmarshalRequest();
+
+	// marshal the response
+	System.out.println ("call marshalResponse");
+	byte[] response = marshalResponse (requestBody);
+
+	// send the response
+	if (response != null)
+	  {
+	    BufferedOutputStream responseStream =
+	      new BufferedOutputStream(socket.getOutputStream());
+	    responseStream.write (response);
+	    responseStream.flush ();
+	  }
+	// close the socket
+	System.out.println("close socket");
+	socket.close ();
+      }
+    catch (Exception e)
+      {
+	e.printStackTrace();
+	try
+	  {
+	    socket.close ();
+	  }
+	catch (Exception socke)
+	  {
+	    socke.printStackTrace();
+	  }
+      }
+  }
+
+  protected String unmarshalRequest() throws Exception
+  { 
+    BufferedReader requestReader =
+      new BufferedReader (new InputStreamReader(socket.getInputStream()));
+    
+    String request = requestReader.readLine();
+    requestReader.readLine();
+    System.out.println ("request is " + request);
+
+    StringTokenizer tok = new StringTokenizer (request, " ");
+    String host = tok.nextToken();
+    String fileName = tok.nextToken();
+
+    return fileName;
+  }
+
+  protected byte[] marshalResponse(String requestBody) throws Exception
+  {
+    byte[] responseBody;
+
+    // find the file corresponding to the file name defined in requestBody
+    File responseFile = new File (requestBody);
+    if (responseFile.canRead())
+      {
+	FileInputStream responseFileStream = 
+	  new FileInputStream (responseFile);
+
+	// read data from the file.
+	int bytesRead = 0;
+	byte[] buffer = new byte[1024];
+	responseBody = new byte[0];
+	byte[] temp = new byte[0];
+ 	while ((bytesRead = responseFileStream.read (buffer)) != -1)
+	  {
+	    temp = responseBody;
+	    responseBody = new byte[temp.length + bytesRead];
+	    for (int i = 0; i < temp.length; i++)
+	      responseBody[i] = temp[i];
+	    for (int i = 0; i < bytesRead; i++)
+	      responseBody[temp.length + i] = buffer[i];
+	  }	
+      }
+    else
+      {
+	//String errorMessage = new String ("Error reading " + requestBody);
+	//responseBody = new byte[1024];
+	//responseBody = errorMessage.getBytes();
+	return null;
+      }
+    System.out.println (new String(responseBody));
+    return responseBody;
+  }
+}// end of class ProtocolRequestHandler
+
+
+public class ProtocolServerTest
+{
+    public static void main(String[] args)
+    {
+        int port = 8175;
+        if(args.length > 0)
+            port = Integer.parseInt(args[0]); 
+
+        // Call networkClient and make connection to server through socket.
+        ProtocolServer protocolServer = ProtocolServer.getInstance (port);
+        protocolServer.start();
+    }
+}// End of class
+
diff --git a/example/protocol/test/file_gen.sh b/example/protocol/test/file_gen.sh
new file mode 100644
index 00000000..3a8f523f
--- /dev/null
+++ b/example/protocol/test/file_gen.sh
@@ -0,0 +1,25 @@
+#!/bin/ksh
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+#
+# build source list remove "non-source" file types.
+#
+find ../../../../../proxy -depth -type f -print | egrep "Makefile$|\.cpp$|\.cc$|\.c$|\.H$|\.h$|\.java$|\.config$|\.y$" > $1
+
+echo "list created: " $1
diff --git a/example/query-remap/query-remap.c b/example/query-remap/query-remap.c
new file mode 100644
index 00000000..3026a2c4
--- /dev/null
+++ b/example/query-remap/query-remap.c
@@ -0,0 +1,188 @@
+/** @file
+
+  A sample plugin to remap requests based on a query parameter
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+#include "ink_defs.h"
+
+#define PLUGIN_NAME "query_remap"
+
+/* function prototypes */
+uint32_t hash_fnv32(char *buf, size_t len);
+
+typedef struct _query_remap_info {
+  char *param_name;
+  size_t param_len;
+  char **hosts;
+  int num_hosts;
+} query_remap_info;
+
+
+int
+TSRemapInit(TSRemapInterface *api_info ATS_UNUSED, char *errbuf ATS_UNUSED,
+              int errbuf_size ATS_UNUSED)
+{
+  /* Called at TS startup. Nothing needed for this plugin */
+  TSDebug(PLUGIN_NAME , "remap plugin initialized");
+  return 0;
+}
+
+
+int
+TSRemapNewInstance(int argc, char *argv[], void **ih, char *errbuf ATS_UNUSED, int errbuf_size ATS_UNUSED)
+{
+  /* Called for each remap rule using this plugin. The parameters are parsed here */
+  int i;
+  TSDebug(PLUGIN_NAME, "new instance fromURL: %s toURL: %s", argv[0], argv[1]);
+
+  if (argc < 4) {
+    TSError("Missing parameters for " PLUGIN_NAME);
+    return -1;
+  }
+
+  /* initialize the struct to store info about this remap instance
+     the argv parameters are:
+       0: fromURL
+       1: toURL
+       2: query param to hash
+       3,4,... : server hostnames
+  */
+  query_remap_info *qri = (query_remap_info*) TSmalloc(sizeof(query_remap_info));
+
+  qri->param_name = TSstrdup(argv[2]);
+  qri->param_len = strlen(qri->param_name);
+  qri->num_hosts = argc - 3;
+  qri->hosts = (char**) TSmalloc(qri->num_hosts*sizeof(char*));
+
+  TSDebug(PLUGIN_NAME, " - Hash using query parameter [%s] with %d hosts",
+           qri->param_name, qri->num_hosts);
+
+  for (i=0; i < qri->num_hosts; ++i) {
+    qri->hosts[i] = TSstrdup(argv[i+3]);
+    TSDebug(PLUGIN_NAME, " - Host %d: %s", i, qri->hosts[i]);
+  }
+
+  *ih = (void*)qri;
+  TSDebug(PLUGIN_NAME, "created instance %p", *ih);
+  return 0;
+}
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  /* Release instance memory allocated in TSRemapNewInstance */
+  int i;
+  TSDebug(PLUGIN_NAME, "deleting instance %p", ih);
+
+  if (ih) {
+    query_remap_info *qri = (query_remap_info*)ih;
+    if (qri->param_name)
+      TSfree(qri->param_name);
+    if (qri->hosts) {
+      for (i=0; i < qri->num_hosts; ++i) {
+        TSfree(qri->hosts[i]);
+      }
+      TSfree(qri->hosts);
+    }
+    TSfree(qri);
+  }
+}
+
+
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn rh ATS_UNUSED, TSRemapRequestInfo *rri)
+{
+  int hostidx = -1;
+  query_remap_info *qri = (query_remap_info*)ih;
+
+  if (!qri || !rri) {
+    TSError(PLUGIN_NAME "NULL private data or RRI");
+    return TSREMAP_NO_REMAP;
+  }
+
+  int req_query_len;
+  const char* req_query = TSUrlHttpQueryGet(rri->requestBufp, rri->requestUrl, &req_query_len);
+  
+  if (req_query && req_query_len > 0) {
+    char *q, *key;
+    char *s = NULL;
+
+    /* make a copy of the query, as it is read only */
+    q = (char*) TSstrndup(req_query, req_query_len+1);
+
+    /* parse query parameters */
+    for (key = strtok_r(q, "&", &s); key != NULL;) {
+      char *val = strchr(key, '=');
+      if (val && (size_t)(val-key) == qri->param_len &&
+          !strncmp(key, qri->param_name, qri->param_len)) {
+        ++val;
+        /* the param key matched the configured param_name
+           hash the param value to pick a host */
+        hostidx = hash_fnv32(val, strlen(val)) % (uint32_t)qri->num_hosts;
+        TSDebug(PLUGIN_NAME, "modifying host based on %s", key);
+        break;
+      }
+      key = strtok_r(NULL, "&", &s);
+    }
+
+    TSfree(q);
+
+    if (hostidx >= 0) {
+      int req_host_len;
+      /* TODO: Perhaps use TSIsDebugTagSet() before calling TSUrlHostGet()... */
+      const char* req_host = TSUrlHostGet(rri->requestBufp, rri->requestUrl, &req_host_len);
+
+      if (TSUrlHostSet(rri->requestBufp, rri->requestUrl, qri->hosts[hostidx], strlen(qri->hosts[hostidx])) != TS_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "Failed to modify the Host in request URL");
+        return TSREMAP_NO_REMAP;
+      }
+      TSDebug(PLUGIN_NAME, "host changed from [%.*s] to [%s]", req_host_len, req_host, qri->hosts[hostidx]);
+      return TSREMAP_DID_REMAP; /* host has been modified */
+    }
+  }
+
+  /* the request was not modified, TS will use the toURL from the remap rule */
+  TSDebug(PLUGIN_NAME, "request not modified");
+  return TSREMAP_NO_REMAP;
+}
+
+
+/* FNV (Fowler/Noll/Vo) hash
+   (description: http://www.isthe.com/chongo/tech/comp/fnv/index.html) */
+uint32_t
+hash_fnv32(char *buf, size_t len)
+{
+  uint32_t hval = (uint32_t)0x811c9dc5; /* FNV1_32_INIT */
+
+  for (; len > 0; --len) {
+    hval *= (uint32_t)0x01000193;  /* FNV_32_PRIME */
+    hval ^= (uint32_t)*buf++;
+  }
+
+  return hval;
+}
+
diff --git a/example/redirect-1/readme.txt b/example/redirect-1/readme.txt
new file mode 100644
index 00000000..0f8881d5
--- /dev/null
+++ b/example/redirect-1/readme.txt
@@ -0,0 +1,9 @@
+About redirect-1.c
+
+This plugin redirects requests from a specified IP address ("block_ip")
+to a specified URL ("url_redirect").
+
+Specify block_ip and url_redirect int the plugin.config file; for 
+example, enter the following line in plugin.config
+
+	redirect-1.so block_ip url_redirect 
diff --git a/example/redirect-1/redirect-1.c b/example/redirect-1/redirect-1.c
new file mode 100644
index 00000000..613235a8
--- /dev/null
+++ b/example/redirect-1/redirect-1.c
@@ -0,0 +1,399 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *   redirect-1.c:
+ *	an example program which redirects clients based on the source IP
+ *
+ *
+ *	Usage:
+ * 	  redirect-1.so block_ip url_redirect
+ *
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#  include <unistd.h>
+#  include <netinet/in.h>
+#  include <arpa/inet.h>
+
+#include <ts/ts.h>
+
+static in_addr_t ip_deny;
+
+/*
+ * uncoupled statistics variables:
+ */
+static INKStat method_count_redirected_connect;
+static INKStat method_count_redirected_delete;
+static INKStat method_count_redirected_get;
+static INKStat method_count_redirected_head;
+static INKStat method_count_redirected_icp_query;
+static INKStat method_count_redirected_options;
+static INKStat method_count_redirected_post;
+static INKStat method_count_redirected_purge;
+static INKStat method_count_redirected_put;
+static INKStat method_count_redirected_trace;
+static INKStat method_count_redirected_unknown;
+
+
+/*
+ *	coupled statistics variables:
+ *		coupled stat category for the following stats
+ *              is request_outcomes. The relationship among the stats is:
+ *		requests_all = requests_redirects + requests_unchanged
+ */
+static INKCoupledStat request_outcomes;
+static INKStat requests_all;
+static INKStat requests_redirects;
+static INKStat requests_unchanged;
+
+
+void update_redirected_method_stats(TSMBuffer bufp, TSMLoc hdr_loc);
+
+static char *url_redirect;
+static char *uri_redirect;
+static char *block_ip;
+
+
+static void
+handle_client_lookup(TSHttpTxn txnp, TSCont contp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc, url_loc;
+  int host_length;
+
+  in_addr_t clientip = 0;
+
+  const char *host;
+
+  /*
+   * Here we declare local coupled statistics variables:
+   */
+  INKCoupledStat local_request_outcomes;
+  INKStat local_requests_all;
+  INKStat local_requests_redirects;
+  INKStat local_requests_unchanged;
+
+  /*
+   *  Create local copy of the global coupled stat category:
+   */
+  local_request_outcomes = INKStatCoupledLocalCopyCreate("local_request_outcomes", request_outcomes);
+
+
+  /*
+   * Create the local copies of the global coupled stats:
+   */
+  local_requests_all = INKStatCoupledLocalAdd(local_request_outcomes, "requests.all.local", INKSTAT_TYPE_FLOAT);
+  local_requests_redirects = INKStatCoupledLocalAdd(local_request_outcomes,
+                                                    "requests.redirects.local", INKSTAT_TYPE_INT64);
+  local_requests_unchanged = INKStatCoupledLocalAdd(local_request_outcomes,
+                                                    "requests.unchanged.local", INKSTAT_TYPE_INT64);
+
+
+  /*
+   *   Increment the count of total requests:
+   *     (it is more natural to treat the number of requests as an
+   *      integer, but we declare this a FLOAT in order to demonstrate
+   *      how to increment coupled FLOAT stats)
+   */
+  INKStatFloatAddTo(local_requests_all, 1.0);
+
+  if (TSIsDebugTagSet("redirect")) {
+    struct sockaddr const* addr = TSHttpTxnClientAddrGet(txnp);
+
+    if (addr) {
+      socklen_t addr_size = 0;
+
+      if (addr->sa_family == AF_INET)
+        addr_size = sizeof(struct sockaddr_in);
+      else if (addr->sa_family == AF_INET6)
+        addr_size = sizeof(struct sockaddr_in6);
+      if (addr_size > 0) {
+        char clientstring[INET6_ADDRSTRLEN];
+
+        if (NULL != inet_ntop(addr->sa_family, addr, clientstring, addr_size))
+          TSDebug("redirect", "clientip is %s and block_ip is %s", clientstring, block_ip);
+      }
+    }
+  }
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client request header\n");
+    goto done;
+  }
+
+  if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve request url\n");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  host = TSUrlHostGet(bufp, url_loc, &host_length);
+  if (!host) {
+    TSError("couldn't retrieve request hostname\n");
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  /*
+   *   Check to see if the client is already headed to the redirect site.
+   */
+  if (strncmp(host, url_redirect, host_length) == 0) {
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    goto done;
+  }
+
+  /* TODO: This is odd, clientip is never set ... */
+  if (ip_deny == clientip) {
+    TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+
+    update_redirected_method_stats(bufp, hdr_loc);
+
+    TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+    /*
+     *   Increment the local redirect stat and do global update:
+     */
+    INKStatIncrement(local_requests_redirects);
+    INKStatsCoupledUpdate(local_request_outcomes);
+    INKStatCoupledLocalCopyDestroy(local_request_outcomes);
+
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+    return;
+  }
+
+done:
+  /*
+   * Increment the local number unchanged stat and do global update:
+   */
+  INKStatIncrement(local_requests_unchanged);
+  INKStatsCoupledUpdate(local_request_outcomes);
+  INKStatCoupledLocalCopyDestroy(local_request_outcomes);
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+
+
+static void
+handle_response(TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc, newfield_loc;
+  char *errormsg_body = "All requests from this IP address are redirected.\n";
+  char *tmp_body;
+
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve client response header\n");
+    goto done;
+  }
+
+  TSHttpHdrStatusSet(bufp, hdr_loc, TS_HTTP_STATUS_MOVED_PERMANENTLY);
+  TSHttpHdrReasonSet(bufp, hdr_loc,
+                      TSHttpHdrReasonLookup(TS_HTTP_STATUS_MOVED_PERMANENTLY),
+                      strlen(TSHttpHdrReasonLookup(TS_HTTP_STATUS_MOVED_PERMANENTLY)));
+
+  TSMimeHdrFieldCreate(bufp, hdr_loc, &newfield_loc); /* Probably should check for errors ... */
+  TSMimeHdrFieldNameSet(bufp, hdr_loc, newfield_loc, TS_MIME_FIELD_LOCATION, TS_MIME_LEN_LOCATION);
+  TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, newfield_loc, -1, uri_redirect, strlen(uri_redirect));
+  TSMimeHdrFieldAppend(bufp, hdr_loc, newfield_loc);
+
+  /*
+   *  Note that we can't directly use errormsg_body, as TSHttpTxnErrorBodySet()
+   *  will try to free the passed buffer with TSfree().
+   */
+  tmp_body = TSstrdup(errormsg_body);
+  TSHttpTxnErrorBodySet(txnp, tmp_body, strlen(tmp_body), NULL);
+  TSHandleMLocRelease(bufp, hdr_loc, newfield_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+
+
+static int
+redirect_plugin(TSCont contp, TSEvent event, void *edata)
+{
+
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+
+    handle_client_lookup(txnp, contp);
+    return 0;
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+
+    handle_response(txnp);
+    return 0;
+
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+
+
+/*
+ *  Global statistics functions:
+ */
+
+void
+init_stats(void)
+{
+  /* noncoupled: */
+  method_count_redirected_connect = INKStatCreate("method.count.redirected.connect", INKSTAT_TYPE_INT64);
+  method_count_redirected_delete = INKStatCreate("method.count.redirected.delete", INKSTAT_TYPE_INT64);
+  method_count_redirected_get = INKStatCreate("method.count.redirected.get", INKSTAT_TYPE_INT64);
+  method_count_redirected_head = INKStatCreate("method.count.redirected.head", INKSTAT_TYPE_FLOAT);
+  method_count_redirected_icp_query = INKStatCreate("method.count.redirected.icp_query", INKSTAT_TYPE_FLOAT);
+  method_count_redirected_options = INKStatCreate("method.count.redirected.options", INKSTAT_TYPE_INT64);
+  method_count_redirected_post = INKStatCreate("method.count.redirected.post", INKSTAT_TYPE_INT64);
+  method_count_redirected_purge = INKStatCreate("method.count.redirected.purge", INKSTAT_TYPE_INT64);
+  method_count_redirected_put = INKStatCreate("method.count.redirected.put", INKSTAT_TYPE_INT64);
+  method_count_redirected_trace = INKStatCreate("method.count.redirected.trace", INKSTAT_TYPE_INT64);
+  method_count_redirected_unknown = INKStatCreate("method.count.redirected.unknown", INKSTAT_TYPE_INT64);
+
+  /* coupled: */
+  request_outcomes = INKStatCoupledGlobalCategoryCreate("request_outcomes");
+  requests_all = INKStatCoupledGlobalAdd(request_outcomes, "requests.all", INKSTAT_TYPE_FLOAT);
+  requests_redirects = INKStatCoupledGlobalAdd(request_outcomes, "requests.redirects", INKSTAT_TYPE_INT64);
+  requests_unchanged = INKStatCoupledGlobalAdd(request_outcomes, "requests.unchanged", INKSTAT_TYPE_INT64);
+
+}
+
+/*
+ *	This function is only called for redirected requests.  It illustrates
+ *	several different ways of updating INT64 stats.  Some may consider
+ *	the particular use of TSDecrementStat() shown below somewhat contrived.
+ */
+void
+update_redirected_method_stats(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  const char *txn_method;
+  int length;
+  int64_t tempint;
+
+  txn_method = TSHttpHdrMethodGet(bufp, hdr_loc, &length);
+
+  if (NULL != txn_method) {
+    if (0 == strncmp(txn_method, TS_HTTP_METHOD_CONNECT, length))
+      INKStatIncrement(method_count_redirected_connect);
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_DELETE, length))
+      INKStatIncrement(method_count_redirected_delete);
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_GET, length))
+      INKStatIncrement(method_count_redirected_get);
+
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_HEAD, length))
+      INKStatFloatAddTo(method_count_redirected_head, 1);
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_ICP_QUERY, length))
+      INKStatFloatAddTo(method_count_redirected_icp_query, 1);
+
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_OPTIONS, length)) {
+      tempint = INKStatIntGet(method_count_redirected_options);
+      tempint++;
+      INKStatIntSet(method_count_redirected_options, tempint);
+    } else if (0 == strncmp(txn_method, TS_HTTP_METHOD_POST, length)) {
+      INKStatDecrement(method_count_redirected_post);
+      INKStatIncrement(method_count_redirected_post);
+      INKStatIncrement(method_count_redirected_post);
+    }
+
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_PURGE, length))
+      INKStatIncrement(method_count_redirected_purge);
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_PUT, length))
+      INKStatIncrement(method_count_redirected_put);
+    else if (0 == strncmp(txn_method, TS_HTTP_METHOD_TRACE, length))
+      INKStatIncrement(method_count_redirected_trace);
+    else
+      INKStatIncrement(method_count_redirected_unknown);
+  }
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  const char prefix[] = "http://";
+  int uri_len;
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "redirect-1";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  if (argc == 3) {
+    block_ip = TSstrdup(argv[1]);
+
+    /*
+     *   The Location header must contain an absolute URI:
+     */
+
+    url_redirect = TSstrdup(argv[2]);
+    uri_len = strlen(prefix) + strlen(url_redirect) + 1;
+    uri_redirect = TSmalloc(uri_len);
+    TSstrlcpy(uri_redirect, prefix, uri_len);
+    TSstrlcat(uri_redirect, url_redirect, uri_len);
+
+  } else {
+    TSError("Incorrect syntax in plugin.conf:  correct usage is" "redirect-1.so ip_deny url_redirect");
+    return;
+  }
+
+  ip_deny = inet_addr(block_ip);
+
+  TSDebug("redirect_init", "initializing stats...");
+  init_stats();
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, TSContCreate(redirect_plugin, NULL));
+
+  TSDebug("redirect_init", "block_ip is %s, url_redirect is %s, and uri_redirect is %s",
+           block_ip, url_redirect, uri_redirect);
+  // ToDo: Should figure out how to print IPs which are IPv4 / v6.
+  // TSDebug("redirect_init", "ip_deny is %ld\n", ip_deny);
+
+  /*
+   *  Demonstrate another tracing function.  This can be used to
+   *  enable debug calculations and other work that should only
+   *  be done in debug mode.
+   */
+
+  if (TSIsDebugTagSet("redirect_demo"))
+    TSDebug("redirect_init", "The redirect_demo tag is set");
+  else
+    TSDebug("redirect_init", "The redirect_demo tag is not set");
+}
diff --git a/example/remap/build.txt b/example/remap/build.txt
new file mode 100644
index 00000000..b5bf31ec
--- /dev/null
+++ b/example/remap/build.txt
@@ -0,0 +1,17 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+g++ -D_FILE_OFFSET_BITS=64 -shared -I../../include -I../../.. -I./ -o remap.so remap.cc
diff --git a/example/remap/remap.cc b/example/remap/remap.cc
new file mode 100644
index 00000000..f6d8bc0b
--- /dev/null
+++ b/example/remap/remap.cc
@@ -0,0 +1,364 @@
+/** @file
+
+  A simple remap plugin for ATS
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section description
+  Build this sample remap plugin using tsxs:
+
+    $ tsxs -v -o remap.so remap.cc 
+
+  To install it:
+    # tsxs -i -o remap.so
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <pwd.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <dlfcn.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#include "ink_defs.h"
+#include "ts/ts.h"
+#include "ts/remap.h"
+
+
+class remap_entry
+{
+public:
+  static remap_entry *active_list;
+  static pthread_mutex_t mutex;
+  remap_entry *next;
+  int argc;
+  char **argv;
+    remap_entry(int _argc, char *_argv[]);
+   ~remap_entry();
+  static void add_to_list(remap_entry *re);
+  static void remove_from_list(remap_entry *re);
+};
+
+static int plugin_init_counter = 0;     /* remap plugin initialization counter */
+static pthread_mutex_t remap_plugin_global_mutex;       /* remap plugin global mutex */
+remap_entry *
+  remap_entry::active_list = 0;
+pthread_mutex_t
+  remap_entry::mutex;           /* remap_entry class mutex */
+
+/* ----------------------- remap_entry::remap_entry ------------------------ */
+remap_entry::remap_entry(int _argc, char *_argv[]):
+  next(NULL), argc(0), argv(NULL)
+{
+  int i;
+
+  if (_argc > 0 && _argv && (argv = (char **)TSmalloc(sizeof(char *) * (_argc + 1))) != 0) {
+    argc = _argc;
+    for (i = 0; i < argc; i++)
+      argv[i] = TSstrdup(_argv[i]);
+    argv[i] = NULL;
+  }
+}
+
+/* ---------------------- remap_entry::~remap_entry ------------------------ */
+remap_entry::~remap_entry()
+{
+  int i;
+
+  if (argc && argv) {
+    for (i = 0; i < argc; i++)
+      TSfree(argv[i]);
+    TSfree(argv);
+  }
+}
+
+/* --------------------- remap_entry::add_to_list -------------------------- */
+void
+remap_entry::add_to_list(remap_entry *re)
+{
+  if (likely(re && plugin_init_counter)) {
+    pthread_mutex_lock(&mutex);
+    re->next = active_list;
+    active_list = re;
+    pthread_mutex_unlock(&mutex);
+  }
+}
+
+/* ------------------ remap_entry::remove_from_list ------------------------ */
+void
+remap_entry::remove_from_list(remap_entry *re)
+{
+  remap_entry **rre;
+  if (likely(re && plugin_init_counter)) {
+    pthread_mutex_lock(&mutex);
+    for (rre = &active_list; *rre; rre = &((*rre)->next)) {
+      if (re == *rre) {
+        *rre = re->next;
+        break;
+      }
+    }
+    pthread_mutex_unlock(&mutex);
+  }
+}
+
+/* ----------------------- store_my_error_message -------------------------- */
+static TSReturnCode
+store_my_error_message(TSReturnCode retcode, char *err_msg_buf, int buf_size, const char *fmt, ...)
+{
+  if (likely(err_msg_buf && buf_size > 0 && fmt)) {
+    va_list ap;
+    va_start(ap, fmt);
+    err_msg_buf[0] = 0;
+    (void) vsnprintf(err_msg_buf, buf_size - 1, fmt, ap);
+    err_msg_buf[buf_size - 1] = 0;
+    va_end(ap);
+  }
+  return retcode;               /* error code here */
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+  info.plugin_name = (char*)"remap_plugin";
+  info.vendor_name = (char*)"Apache";
+  info.support_email = (char*)"";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed. \n");
+  }
+  TSDebug("debug-remap", "TSPluginInit: Remap plugin started\n");
+}
+
+// Plugin initialization code. Called immediately after dlopen() Only once!
+// Can perform internal initialization. For example, pthread_.... initialization.
+/* ------------------------- TSRemapInit ---------------------------------- */
+TSReturnCode
+TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size)
+{
+  fprintf(stderr, "Remap Plugin: TSRemapInit()\n");
+
+  if (!plugin_init_counter) {
+    if (unlikely(!api_info)) {
+      return store_my_error_message(TS_ERROR, errbuf, errbuf_size, "[TSRemapInit] - Invalid TSRemapInterface argument");
+    }
+    if (unlikely(api_info->size < sizeof(TSRemapInterface))) {
+      return store_my_error_message(TS_ERROR, errbuf, errbuf_size,
+                                    "[TSRemapInit] - Incorrect size of TSRemapInterface structure %d. Should be at least %d bytes",
+                                    (int) api_info->size, (int) sizeof(TSRemapInterface));
+    }
+    if (unlikely(api_info->tsremap_version < TSREMAP_VERSION)) {
+      return store_my_error_message(TS_ERROR, errbuf, errbuf_size,
+                                    "[TSRemapInit] - Incorrect API version %d.%d",
+                                    (api_info->tsremap_version >> 16), (api_info->tsremap_version & 0xffff));
+    }
+
+    if (pthread_mutex_init(&remap_plugin_global_mutex, 0) || pthread_mutex_init(&remap_entry::mutex, 0)) {      /* pthread_mutex_init - always returns 0. :) - impossible error */
+      return store_my_error_message(TS_ERROR, errbuf, errbuf_size, "[TSRemapInit] - Mutex initialization error");
+    }
+    plugin_init_counter++;
+  }
+  return TS_SUCCESS;                     /* success */
+}
+
+// Plugin shutdown
+// Optional function.
+/* -------------------------- TSRemapDone --------------------------------- */
+void
+TSRemapDone(void)
+{
+  fprintf(stderr, "Remap Plugin: TSRemapDone()\n");
+}
+
+
+// Plugin new instance for new remapping rule.
+// This function can be called multiple times (depends on remap.config)
+/* ------------------------ TSRemapNewInstance --------------------------- */
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void **ih, char *errbuf, int errbuf_size)
+{
+  remap_entry *ri;
+  int i;
+
+
+  fprintf(stderr, "Remap Plugin: TSRemapNewInstance()\n");
+
+  if (argc < 2) {
+    return store_my_error_message(TS_ERROR, errbuf, errbuf_size,
+                                  "[TSRemapNewInstance] - Incorrect number of arguments - %d", argc);
+  }
+  if (!argv || !ih) {
+    return store_my_error_message(TS_ERROR, errbuf, errbuf_size, "[TSRemapNewInstance] - Invalid argument(s)");
+  }
+  // print all arguments for this particular remapping
+  for (i = 0; i < argc; i++) {
+    fprintf(stderr, "[TSRemapNewInstance] - argv[%d] = \"%s\"\n", i, argv[i]);
+  }
+
+  ri = new remap_entry(argc, argv);
+
+  if (!ri) {
+    return store_my_error_message(TS_ERROR, errbuf, errbuf_size, "[TSRemapNewInstance] - Can't create remap_entry class");
+  }
+
+  remap_entry::add_to_list(ri);
+
+  *ih = (void*) ri;
+
+  return TS_SUCCESS;
+}
+
+/* ---------------------- TSRemapDeleteInstance -------------------------- */
+void
+TSRemapDeleteInstance(void* ih)
+{
+  remap_entry *ri = (remap_entry *) ih;
+
+  fprintf(stderr, "Remap Plugin: TSRemapDeleteInstance()\n");
+
+  remap_entry::remove_from_list(ri);
+
+  delete ri;
+}
+
+static volatile unsigned long processing_counter = 0;   // sequential counter
+static int arg_index = 0;
+
+/* -------------------------- TSRemapDoRemap -------------------------------- */
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
+{
+  const char* temp;
+  const char* temp2;
+  int len, len2, port;
+  TSMLoc cfield;
+  unsigned long _processing_counter = ++processing_counter;     // one more function call (in real life use mutex to protect this counter)
+
+  remap_entry *ri = (remap_entry *) ih;
+  fprintf(stderr, "Remap Plugin: TSRemapDoRemap()\n");
+
+  if (!ri || !rri)
+    return TSREMAP_NO_REMAP;                   /* TS must remap this request */
+
+  fprintf(stderr, "[TSRemapDoRemap] From: \"%s\"  To: \"%s\"\n", ri->argv[0], ri->argv[1]);
+
+  temp = TSUrlHostGet(rri->requestBufp, rri->requestUrl, &len);
+  fprintf(stderr, "[TSRemapDoRemap] Request Host(%d): \"%.*s\"\n", len, len, temp);
+
+  temp = TSUrlHostGet(rri->requestBufp, rri->mapToUrl, &len);
+  fprintf(stderr, "[TSRemapDoRemap] Remap To Host: \"%.*s\"\n", len, temp);
+
+  temp = TSUrlHostGet(rri->requestBufp, rri->mapFromUrl, &len);
+  fprintf(stderr, "[TSRemapDoRemap] Remap From Host: \"%.*s\"\n", len, temp);
+
+  fprintf(stderr, "[TSRemapDoRemap] Request Port: %d\n", TSUrlPortGet(rri->requestBufp, rri->requestUrl));
+  fprintf(stderr, "[TSRemapDoRemap] Remap From Port: %d\n", TSUrlPortGet(rri->requestBufp, rri->mapFromUrl));
+  fprintf(stderr, "[TSRemapDoRemap] Remap To Port: %d\n", TSUrlPortGet(rri->requestBufp, rri->mapToUrl));
+
+  temp = TSUrlPathGet(rri->requestBufp, rri->requestUrl, &len);
+  fprintf(stderr, "[TSRemapDoRemap] Request Path: \"%.*s\"\n", len, temp);
+
+  temp = TSUrlPathGet(rri->requestBufp, rri->mapFromUrl, &len);
+  fprintf(stderr, "[TSRemapDoRemap] Remap From Path: \"%.*s\"\n", len, temp);
+
+  temp = TSUrlPathGet(rri->requestBufp, rri->mapToUrl, &len);
+  fprintf(stderr, "[TSRemapDoRemap] Remap To Path: \"%.*s\"\n", len, temp);
+
+  // InkAPI usage case
+  const char *value;
+
+  if ((cfield = TSMimeHdrFieldFind(rri->requestBufp, rri->requestHdrp, TS_MIME_FIELD_DATE, -1)) != TS_NULL_MLOC) {
+    fprintf(stderr, "We have \"Date\" header in request\n");
+    value = TSMimeHdrFieldValueStringGet(rri->requestBufp, rri->requestHdrp, cfield, -1, NULL);
+    fprintf(stderr, "Header value: %s\n", value);
+  }
+  if ((cfield = TSMimeHdrFieldFind(rri->requestBufp, rri->requestHdrp, "MyHeader", sizeof("MyHeader") - 1)) != TS_NULL_MLOC) {
+    fprintf(stderr, "We have \"MyHeader\" header in request\n");
+    value = TSMimeHdrFieldValueStringGet(rri->requestBufp, rri->requestHdrp, cfield, -1, NULL);
+    fprintf(stderr, "Header value: %s\n", value);
+  }
+
+  // How to store plugin private arguments inside Traffic Server request processing block.
+  if (TSHttpArgIndexReserve("remap_example", "Example remap plugin", &arg_index) == TS_SUCCESS) {
+    fprintf(stderr, "[TSRemapDoRemap] Save processing counter %lu inside request processing block\n", _processing_counter);
+    TSHttpTxnArgSet((TSHttpTxn) rh, arg_index, (void *) _processing_counter); // save counter
+  }
+  // How to cancel request processing and return error message to the client
+  // We wiil do it each other request
+  if (_processing_counter & 1) {
+    char* tmp = (char*)TSmalloc(256);
+    static int my_local_counter = 0;
+
+    size_t len = snprintf(tmp, sizeof(tmp) - 1,
+                          "This is very small example of TS API usage!\nIteration %d!\nHTTP return code %d\n",
+                          my_local_counter, TS_HTTP_STATUS_CONTINUE + my_local_counter);
+    TSHttpTxnSetHttpRetStatus((TSHttpTxn) rh, (TSHttpStatus) ((int) TS_HTTP_STATUS_CONTINUE + my_local_counter)); 
+    TSHttpTxnErrorBodySet((TSHttpTxn) rh, tmp, len, NULL); // Defaults to text/html
+    my_local_counter++;
+  }
+  // hardcoded case for remapping
+  // You need to check host and port if you are using the same plugin for multiple remapping rules
+  temp = TSUrlHostGet(rri->requestBufp, rri->requestUrl, &len);
+  temp2 = TSUrlPathGet(rri->requestBufp, rri->requestUrl, &len2);
+  port = TSUrlPortGet(rri->requestBufp, rri->requestUrl);
+
+  if (len == 10 && !memcmp("flickr.com", temp, 10) && port == 80 && len2 >= 3 && !memcmp("47/", temp2, 3)) {
+    char new_path[8192];
+
+    // Ugly, but so is the rest of this "example"
+    if (len2 + 7 >= 8192)
+      return TSREMAP_NO_REMAP;
+
+    if (TSUrlPortSet(rri->requestBufp, rri->mapToUrl, TSUrlPortGet(rri->requestBufp, rri->mapToUrl)) != TS_SUCCESS)
+      return TSREMAP_NO_REMAP;
+
+    if (TSUrlHostSet(rri->requestBufp, rri->requestUrl, "foo.bar.com", 11) != TS_SUCCESS)
+      return TSREMAP_NO_REMAP;
+
+    memcpy(new_path, "47_copy", 7);
+    memcpy(&new_path[7], &temp2[2], len2 - 2);
+
+    if (TSUrlPathSet(rri->requestBufp, rri->requestUrl, new_path, len2 + 5) == TS_SUCCESS)
+      return TSREMAP_DID_REMAP;
+  }
+
+  // Failure ...
+  return TSREMAP_NO_REMAP;
+}
+
+/* ----------------------- TSRemapOSResponse ----------------------------- */
+void
+TSRemapOSResponse(void* ih ATS_UNUSED, TSHttpTxn rh, int os_response_type)
+{
+  int request_id = -1;
+  void *data = TSHttpTxnArgGet((TSHttpTxn) rh, arg_index);  // read counter (we store it in TSRemapDoRemap function call)
+
+  if (data)
+    request_id = *((int*)data);
+  fprintf(stderr, "[TSRemapOSResponse] Read processing counter %d from request processing block\n", request_id);
+  fprintf(stderr, "[TSRemapOSResponse] OS response status: %d\n", os_response_type);
+}
diff --git a/example/replace-header/replace-header.c b/example/replace-header/replace-header.c
new file mode 100644
index 00000000..d4bc31be
--- /dev/null
+++ b/example/replace-header/replace-header.c
@@ -0,0 +1,110 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *   replace-header.c:
+ *	an example program...
+ *
+ *   NOTE: If faced with duplicate headers, this will only detect the
+ *         first instance.  Operational plugins may need to do more!
+ *
+ *	Usage:
+ *
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+static void
+replace_header(TSHttpTxn txnp)
+{
+  TSMBuffer resp_bufp;
+  TSMLoc resp_loc;
+  TSMLoc field_loc;
+
+  if (TSHttpTxnServerRespGet(txnp, &resp_bufp, &resp_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve server response header.\n");
+    goto done;
+  }
+
+  field_loc = TSMimeHdrFieldFind(resp_bufp, resp_loc, TS_MIME_FIELD_ACCEPT_RANGES, TS_MIME_LEN_ACCEPT_RANGES);
+  if (field_loc == TS_NULL_MLOC) {
+    /* field was not found */
+
+    /* create a new field in the header */
+    TSMimeHdrFieldCreate(resp_bufp, resp_loc, &field_loc); /* Probably should check for errors. */
+    /* set its name */
+    TSMimeHdrFieldNameSet(resp_bufp, resp_loc, field_loc, TS_MIME_FIELD_ACCEPT_RANGES, TS_MIME_LEN_ACCEPT_RANGES);
+    /* set its value */
+    TSMimeHdrFieldValueAppend(resp_bufp, resp_loc, field_loc, -1, "none", 4);
+    /* insert it into the header */
+    TSMimeHdrFieldAppend(resp_bufp, resp_loc, field_loc);
+    TSHandleMLocRelease(resp_bufp, resp_loc, field_loc);
+    TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+  } else {
+    /* clear the field */
+    TSMimeHdrFieldValuesClear(resp_bufp, resp_loc, field_loc);
+    /* set the value to "none" */
+    TSMimeHdrFieldValueStringInsert(resp_bufp, resp_loc, field_loc, -1, "none", 4);
+    TSHandleMLocRelease(resp_bufp, resp_loc, field_loc);
+    TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+  }
+
+done:
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+static int
+replace_header_plugin(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    replace_header(txnp);
+    return 0;
+  default:
+    break;
+  }
+  return 0;
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "replace-header";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed. \n");
+  }
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(replace_header_plugin, NULL));
+}
diff --git a/example/response-header-1/response-header-1.c b/example/response-header-1/response-header-1.c
new file mode 100644
index 00000000..814c2d2b
--- /dev/null
+++ b/example/response-header-1/response-header-1.c
@@ -0,0 +1,303 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * response-header-1.c:
+ *		an example program which illustrates adding and manipulating
+ *		an HTTP response MIME header:
+ *
+ *   Authorized possession and use of this software pursuant only
+ *   to the terms of a written license agreement.
+ *
+ *	Usage:	response-header-1.so
+ *
+ *	add read_resp_header hook
+ *	get http response header
+ *	if 200, then
+ *		add mime extension header with count of zero
+ *		add mime extension header with date response was received
+ *		add "Cache-Control: public" header
+ *	else if 304, then
+ *		retrieve cached header
+ *		get old value of mime header count
+ *		increment mime header count
+ *		store mime header with new count
+ *
+ *
+ *
+ */
+
+#include <time.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+static int init_buffer_status;
+
+static char *mimehdr1_name;
+static char *mimehdr2_name;
+static char *mimehdr1_value;
+
+static TSMBuffer hdr_bufp;
+static TSMLoc hdr_loc;
+
+static TSMLoc field_loc;
+static TSMLoc value_loc;
+
+static void
+modify_header(TSHttpTxn txnp)
+{
+  TSMBuffer resp_bufp;
+  TSMBuffer cached_bufp;
+  TSMLoc resp_loc;
+  TSMLoc cached_loc;
+  TSHttpStatus resp_status;
+  TSMLoc new_field_loc;
+  TSMLoc cached_field_loc;
+  time_t recvd_time;
+
+  const char *chkptr;
+  int chklength;
+
+  int num_refreshes = 0;
+
+  if (!init_buffer_status)
+    return;                     /* caller reenables */
+
+  if (TSHttpTxnServerRespGet(txnp, &resp_bufp, &resp_loc) != TS_SUCCESS) {
+    TSError("couldn't retrieve server response header\n");
+    return;                     /* caller reenables */
+  }
+
+  /* TSqa06246/TSqa06144 */
+  resp_status = TSHttpHdrStatusGet(resp_bufp, resp_loc);
+
+  if (TS_HTTP_STATUS_OK == resp_status) {
+
+    TSDebug("resphdr", "Processing 200 OK");
+    TSMimeHdrFieldCreate(resp_bufp, resp_loc, &new_field_loc); /* Probably should check for errors */
+    TSDebug("resphdr", "Created new resp field with loc %p", new_field_loc);
+
+    /* copy name/values created at init
+     * ( "x-num-served-from-cache" ) : ( "0"  )
+     */
+    TSMimeHdrFieldCopy(resp_bufp, resp_loc, new_field_loc, hdr_bufp, hdr_loc, field_loc);
+
+        /*********** Unclear why this is needed **************/
+    TSMimeHdrFieldAppend(resp_bufp, resp_loc, new_field_loc);
+
+
+    /* Cache-Control: Public */
+    TSMimeHdrFieldCreate(resp_bufp, resp_loc, &new_field_loc); /* Probably should check for errors */
+    TSDebug("resphdr", "Created new resp field with loc %p", new_field_loc);
+    TSMimeHdrFieldAppend(resp_bufp, resp_loc, new_field_loc);
+    TSMimeHdrFieldNameSet(resp_bufp, resp_loc, new_field_loc,
+                           TS_MIME_FIELD_CACHE_CONTROL, TS_MIME_LEN_CACHE_CONTROL);
+    TSMimeHdrFieldValueStringInsert(resp_bufp, resp_loc, new_field_loc,
+                                     -1, TS_HTTP_VALUE_PUBLIC, TS_HTTP_LEN_PUBLIC);
+
+    /*
+     * mimehdr2_name  = TSstrdup( "x-date-200-recvd" ) : CurrentDateTime
+     */
+    TSMimeHdrFieldCreate(resp_bufp, resp_loc, &new_field_loc); /* Probably should check for errors */
+    TSDebug("resphdr", "Created new resp field with loc %p", new_field_loc);
+    TSMimeHdrFieldAppend(resp_bufp, resp_loc, new_field_loc);
+    TSMimeHdrFieldNameSet(resp_bufp, resp_loc, new_field_loc, mimehdr2_name, strlen(mimehdr2_name));
+    recvd_time = time(NULL);
+    TSMimeHdrFieldValueDateInsert(resp_bufp, resp_loc, new_field_loc, recvd_time);
+
+    TSHandleMLocRelease(resp_bufp, resp_loc, new_field_loc);
+    TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+
+  } else if (TS_HTTP_STATUS_NOT_MODIFIED == resp_status) {
+
+    TSDebug("resphdr", "Processing 304 Not Modified");
+
+    /* N.B.: Protect writes to data (hash on URL + mutex: (ies)) */
+
+    /* Get the cached HTTP header */
+    if (TSHttpTxnCachedRespGet(txnp, &cached_bufp, &cached_loc) != TS_SUCCESS) {
+      TSError("STATUS 304, TSHttpTxnCachedRespGet():");
+      TSError("couldn't retrieve cached response header\n");
+      TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+      return;                   /* Caller reenables */
+    }
+
+    /* Get the cached MIME field name for this HTTP header */
+    cached_field_loc = TSMimeHdrFieldFind(cached_bufp, cached_loc,
+                                           (const char *) mimehdr1_name, strlen(mimehdr1_name));
+    if (TS_NULL_MLOC == cached_field_loc) {
+      TSError("Can't find header %s in cached document", mimehdr1_name);
+      TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+      TSHandleMLocRelease(cached_bufp, TS_NULL_MLOC, cached_loc);
+      return;                   /* Caller reenables */
+    }
+
+    /* Get the cached MIME value for this name in this HTTP header */
+    chkptr = TSMimeHdrFieldValueStringGet(cached_bufp, cached_loc, cached_field_loc, -1, &chklength);
+    if (NULL == chkptr || !chklength) {
+      TSError("Could not find value for cached MIME field name %s", mimehdr1_name);
+      TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+      TSHandleMLocRelease(cached_bufp, TS_NULL_MLOC, cached_loc);
+      TSHandleMLocRelease(cached_bufp, cached_loc, cached_field_loc);
+      return;                   /* Caller reenables */
+    }
+    TSDebug("resphdr", "Header field value is %s, with length %d", chkptr, chklength);
+
+
+    /* Get the cached MIME value for this name in this HTTP header */
+    /*
+       TSMimeHdrFieldValueUintGet(cached_bufp, cached_loc, cached_field_loc, 0, &num_refreshes);
+       TSDebug("resphdr",
+       "Cached header shows %d refreshes so far", num_refreshes );
+
+       num_refreshes++ ;
+     */
+
+       /* txn origin server response for this transaction stored
+       * in resp_bufp, resp_loc
+       *
+       * Create a new MIME field/value. Cached value has been incremented.
+       * Insert new MIME field/value into the server response buffer,
+       * allow HTTP processing to continue. This will update
+       * (indirectly invalidates) the cached HTTP headers MIME field.
+       * It is apparently not necessary to update all of the MIME fields
+       * in the in-process response in order to have the cached response
+       * become invalid.
+     */
+    TSMimeHdrFieldCreate(resp_bufp, resp_loc, &new_field_loc); /* Probaby should check for errrors */
+
+    /* mimehdr1_name : TSstrdup( "x-num-served-from-cache" ) ; */
+
+    TSMimeHdrFieldAppend(resp_bufp, resp_loc, new_field_loc);
+    TSMimeHdrFieldNameSet(resp_bufp, resp_loc, new_field_loc, mimehdr1_name, strlen(mimehdr1_name));
+
+    TSMimeHdrFieldValueUintInsert(resp_bufp, resp_loc, new_field_loc, -1, num_refreshes);
+
+    TSHandleMLocRelease(resp_bufp, resp_loc, new_field_loc);
+    TSHandleMLocRelease(cached_bufp, cached_loc, cached_field_loc);
+    TSHandleMLocRelease(cached_bufp, TS_NULL_MLOC, cached_loc);
+    TSHandleMLocRelease(resp_bufp, TS_NULL_MLOC, resp_loc);
+
+  } else {
+    TSDebug("resphdr", "other response code %d", resp_status);
+  }
+
+  /*
+   *  Additional 200/304 processing can go here, if so desired.
+   */
+
+  /* Caller reneables */
+}
+
+
+static int
+modify_response_header_plugin(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    TSDebug("resphdr", "Called back with TS_EVENT_HTTP_READ_RESPONSE_HDR");
+    modify_header(txnp);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    /*  fall through  */
+
+  default:
+    break;
+  }
+  return 0;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSMLoc chk_field_loc;
+
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "response-header-1";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  init_buffer_status = 0;
+  if (argc > 1) {
+    TSError("usage: %s \n", argv[0]);
+    TSError("warning: too many args %d\n", argc);
+    TSError("warning: ignoring unused arguments beginning with %s\n", argv[1]);
+  }
+
+  /*
+   *  The following code sets up an "init buffer" containing an extension header
+   *  and its initial value.  This will be the same for all requests, so we try
+   *  to be efficient and do all of the work here rather than on a per-transaction
+   *  basis.
+   */
+
+
+  hdr_bufp = TSMBufferCreate();
+  TSMimeHdrCreate(hdr_bufp, &hdr_loc);
+
+  mimehdr1_name = TSstrdup("x-num-served-from-cache");
+  mimehdr1_value = TSstrdup("0");
+
+  /* Create name here and set DateTime value when o.s.
+   * response 200 is received
+   */
+  mimehdr2_name = TSstrdup("x-date-200-recvd");
+
+  TSDebug("resphdr", "Inserting header %s with value %s into init buffer", mimehdr1_name, mimehdr1_value);
+
+  TSMimeHdrFieldCreate(hdr_bufp, hdr_loc, &field_loc); /* Probably should check for errors */
+  TSMimeHdrFieldAppend(hdr_bufp, hdr_loc, field_loc);
+  TSMimeHdrFieldNameSet(hdr_bufp, hdr_loc, field_loc, mimehdr1_name, strlen(mimehdr1_name));
+  TSMimeHdrFieldValueStringInsert(hdr_bufp, hdr_loc, field_loc, -1, mimehdr1_value, strlen(mimehdr1_value));
+  TSDebug("resphdr", "init buffer hdr, field and value locs are %p, %p and %p", hdr_loc, field_loc, value_loc);
+  init_buffer_status = 1;
+
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(modify_response_header_plugin, NULL));
+
+  /*
+   *  The following code demonstrates how to extract the field_loc from the header.
+   *  In this plugin, the init buffer and thus field_loc never changes.  Code
+   *  similar to this may be used to extract header fields from any buffer.
+   */
+
+  if (TS_NULL_MLOC == (chk_field_loc = TSMimeHdrFieldGet(hdr_bufp, hdr_loc, 0))) {
+    TSError("couldn't retrieve header field from init buffer");
+    TSError("marking init buffer as corrupt; no more plugin processing");
+    init_buffer_status = 0;
+    /* bail out here and reenable transaction */
+  } else {
+    if (field_loc != chk_field_loc)
+      TSError("retrieved buffer field loc is %p when it should be %p", chk_field_loc, field_loc);
+  }
+}
diff --git a/example/secure-link/readme.txt b/example/secure-link/readme.txt
new file mode 100644
index 00000000..e79dab0e
--- /dev/null
+++ b/example/secure-link/readme.txt
@@ -0,0 +1,19 @@
+The secure-link plugin allows Traffic Server to protect resources by verifying
+checksum value passed in the request and computed for the request.
+Checksum is the md5 digest of concatenation of several params:
+  [secret] + [Client IP Address] + [HTTP Query Path] + [expire]
+The plugin can be used in the plugins chain in remap.config and it expects two @pparams:
+1. secret - the word, which is known only to the application that generated link
+   and Traffic Server.
+2. policy - if set to 'strict' and checksums not match or expire value
+   lower than current time the client will receive 403 Frobidden response.
+   Used for debugging.
+
+For example request
+  http://foo.example.com/d41d8cd98f00b204e9800998ecf8427e/52b9ed11/path/to/secret/document.pdf
+may be remapped to
+  http://bar.example.com/path/to/secret/document.pdf?st=d41d8cd98f00b204e9800998ecf8427e&ex=52b9ed11
+and then passed to secure-link plugin, which compare 'st' and 'ex' GET params
+with computed md5 checksum and current time respectively.
+If check passed the plugin removes 'st' and 'ex' GET params and passes down
+the processing chain;
diff --git a/example/secure-link/secure-link.c b/example/secure-link/secure-link.c
new file mode 100644
index 00000000..cefc74fd
--- /dev/null
+++ b/example/secure-link/secure-link.c
@@ -0,0 +1,201 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <openssl/md5.h>
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+
+#define PLUGIN_NAME "secure_link"
+
+typedef struct {
+  char *secret;
+  uint8_t strict;
+} secure_link_info;
+
+TSRemapStatus
+TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo* rri)
+{
+  int i, len;
+  time_t t, e;
+  MD5_CTX ctx;
+  struct sockaddr_in *in;
+  const char *qh, *ph, *ip;
+  char *s, *ptr, *val, hash[32];
+  unsigned char md[MD5_DIGEST_LENGTH];
+  secure_link_info *sli = (secure_link_info *)ih;
+  char *token = NULL, *expire = NULL, *path = NULL;
+
+  in = (struct sockaddr_in *)TSHttpTxnClientAddrGet(rh);
+  ip = inet_ntoa(in->sin_addr);
+  s = TSUrlStringGet(rri->requestBufp, rri->requestUrl, &len);
+  TSDebug(PLUGIN_NAME, "request [%.*s] from [%s]", len, s, ip);
+  TSfree(s);
+
+  qh = TSUrlHttpQueryGet(rri->requestBufp, rri->requestUrl, &len);
+  if(qh && len > 0) {
+    s = (char *)TSstrndup(qh, len);
+    if((ptr = strtok(s, "&")) != NULL) {
+      do {
+        if((val = strchr(ptr, '=')) != NULL) {
+          *val++ = '\0';
+          if(strcmp(ptr, "st") == 0) {
+            token = TSstrdup(val);
+          } else if(strcmp(ptr, "ex") == 0) {
+            expire = TSstrdup(val);
+          }
+        } else {
+          TSError("Invalid parameter [%s]", ptr);
+          break;
+        }
+      } while((ptr = strtok(NULL, "&")) != NULL);
+    }
+    TSfree(s);
+  } else {
+    TSError("TSUrlHttpQueryGet returns empty value");
+    /* this is just example, so set fake params to prevent plugin crash */
+    token = TSstrdup("d41d8cd98f00b204e9800998ecf8427e");
+    expire = TSstrdup("00000000");
+  }
+
+  ph = TSUrlPathGet(rri->requestBufp, rri->requestUrl, &len);
+  if(ph && len > 0) {
+    s = TSstrndup(ph, len);
+    if((ptr = strrchr(s, '/')) != NULL) {
+      *++ptr = '\0';
+    }
+    path = TSstrdup(s);
+    TSfree(s);
+  } else {
+    TSError("TSUrlPathGet returns empty value");
+    /* this is just example, so set fake params to prevent plugin crash */
+    path = TSstrdup("example/");
+  }
+  MD5_Init(&ctx);
+  MD5_Update(&ctx, sli->secret, strlen(sli->secret));
+  MD5_Update(&ctx, ip, strlen(ip));
+  MD5_Update(&ctx, path, strlen(path));
+  MD5_Update(&ctx, expire, strlen(expire));
+  MD5_Final(md, &ctx);
+  for(i = 0; i < MD5_DIGEST_LENGTH; i++) {
+    sprintf(&hash[i * 2], "%02x", md[i]);
+  }
+  time(&t);
+  e = strtol(expire, NULL, 16);
+  i = TSREMAP_DID_REMAP;
+  if(e < t || strcmp(hash, token) != 0) {
+    if(e < t) {
+      TSDebug(PLUGIN_NAME, "link expired: [%lu] vs [%lu]", t, e);
+    } else {
+      TSDebug(PLUGIN_NAME, "tokens mismatch: [%s] vs [%s]", hash, token);
+    }
+    if(sli->strict) {
+      TSDebug(PLUGIN_NAME, "request is DENY");
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_FORBIDDEN);
+      i = TSREMAP_NO_REMAP;
+    } else {
+      TSDebug(PLUGIN_NAME, "request is PASS");
+    }
+  }
+  if(i == TSREMAP_DID_REMAP) {
+    if(TSUrlHttpQuerySet(rri->requestBufp, rri->requestUrl, "", -1) == TS_SUCCESS) {
+      s = TSUrlStringGet(rri->requestBufp, rri->requestUrl, &len);
+      TSDebug(PLUGIN_NAME, "new request string is [%.*s]", len, s);
+      TSfree(s);
+    } else {
+      i = TSREMAP_NO_REMAP;
+    }
+  }
+  TSfree(expire);
+  TSfree(token);
+  TSfree(path);
+  return i;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char **argv, void **ih, char *errbuf, int errbuf_size)
+{
+  int i;
+  char *ptr;
+  secure_link_info *sli;
+
+  // squash unused variable warnings ...
+  (void)errbuf;
+  (void)errbuf_size;
+
+  sli = (secure_link_info *)TSmalloc(sizeof(secure_link_info));
+  sli->secret = NULL;
+  sli->strict = 0;
+
+  for(i = 2; i < argc; i++) {
+    if((ptr = strchr(argv[i], ':')) != NULL) {
+      *ptr++ = '\0';
+      if(strcmp(argv[i], "secret") == 0) {
+        if(sli->secret != NULL) {
+          TSfree(sli->secret);
+        }
+        sli->secret = TSstrdup(ptr);
+      } else if(strcmp(argv[i], "policy") == 0) {
+        sli->strict = !strcasecmp(ptr, "strict");
+      } else {
+        TSDebug(PLUGIN_NAME, "Unknown parameter [%s]", argv[i]);
+      }
+    } else {
+      TSError("Invalid parameter [%s]", argv[i]);
+    }
+  }
+
+  if(sli->secret == NULL) {
+    sli->secret = TSstrdup("");
+  }
+
+  *ih = (void *)sli;
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void *ih)
+{
+  secure_link_info *sli = (secure_link_info *)ih;
+
+  TSfree(sli->secret);
+  TSfree(sli);
+}
+
+TSReturnCode
+TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size)
+{
+  // squash unused variable warnings ...
+  (void)api_info;
+  (void)errbuf;
+  (void)errbuf_size;
+
+  return TS_SUCCESS;
+}
diff --git a/example/server-transform/server-transform.c b/example/server-transform/server-transform.c
new file mode 100644
index 00000000..4a2df811
--- /dev/null
+++ b/example/server-transform/server-transform.c
@@ -0,0 +1,659 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* server-transform.c:  an example program that sends response content
+ *                      to a server to be transformed, and sends the
+ *                      transformed content to the client
+ *
+ *
+ *	Usage:
+ *	  server-transform.so
+ *
+ *
+ */
+
+/* The protocol spoken with the server is simple. The plugin sends the
+   content-length of the document being transformed as a 4-byte
+   integer and then it sends the document itself. The first 4-bytes of
+   the server response are a status code/content length. If the code
+   is greater than 0 then the plugin assumes transformation was
+   successful and uses the code as the content length of the
+   transformed document. If the status code is less than or equal to 0
+   then the plugin bypasses transformation and sends the original
+   document on through.
+
+   The plugin does a fair amount of error checking and tries to bypass
+   transformation in many cases such as when it can't connect to the
+   server. This example plugin simply connects to port 7 on localhost,
+   which on our solaris machines (and most unix machines) is the echo
+   port. One nicety about the protocol is that simply having the
+   server echo back what it is sent results in a "null"
+   transformation. (i.e. A transformation which does not modify the
+   content). */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <netinet/in.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#define STATE_BUFFER       1
+#define STATE_CONNECT      2
+#define STATE_WRITE        3
+#define STATE_READ_STATUS  4
+#define STATE_READ         5
+#define STATE_BYPASS       6
+
+typedef struct
+{
+  int state;
+  TSHttpTxn txn;
+
+  TSIOBuffer input_buf;
+  TSIOBufferReader input_reader;
+
+  TSIOBuffer output_buf;
+  TSIOBufferReader output_reader;
+  TSVConn output_vc;
+  TSVIO output_vio;
+
+  TSAction pending_action;
+  TSVConn server_vc;
+  TSVIO server_vio;
+
+  int content_length;
+} TransformData;
+
+static int transform_handler(TSCont contp, TSEvent event, void *edata);
+
+static in_addr_t server_ip;
+static int server_port;
+
+static TSCont
+transform_create(TSHttpTxn txnp)
+{
+  TSCont contp;
+  TransformData *data;
+
+  contp = TSTransformCreate(transform_handler, txnp);
+
+  data = (TransformData *) TSmalloc(sizeof(TransformData));
+  data->state = STATE_BUFFER;
+  data->txn = txnp;
+  data->input_buf = NULL;
+  data->input_reader = NULL;
+  data->output_buf = NULL;
+  data->output_reader = NULL;
+  data->output_vio = NULL;
+  data->output_vc = NULL;
+  data->pending_action = NULL;
+  data->server_vc = NULL;
+  data->server_vio = NULL;
+  data->content_length = 0;
+
+  TSContDataSet(contp, data);
+  return contp;
+}
+
+static void
+transform_destroy(TSCont contp)
+{
+  TransformData *data;
+
+  data = TSContDataGet(contp);
+  if (data != NULL) {
+    if (data->input_buf)
+      TSIOBufferDestroy(data->input_buf);
+
+    if (data->output_buf)
+      TSIOBufferDestroy(data->output_buf);
+
+    if (data->pending_action)
+      TSActionCancel(data->pending_action);
+
+    if (data->server_vc)
+      TSVConnAbort(data->server_vc, 1);
+
+    TSfree(data);
+  } else {
+    TSError("Unable to get Continuation's Data. TSContDataGet returns NULL");
+  }
+
+  TSContDestroy(contp);
+}
+
+static int
+transform_connect(TSCont contp, TransformData * data)
+{
+  TSAction action;
+  int content_length;
+  struct sockaddr_in ip_addr;
+
+  data->state = STATE_CONNECT;
+
+  content_length = TSIOBufferReaderAvail(data->input_reader);
+  if (content_length >= 0) {
+    data->content_length = content_length;
+    data->content_length = htonl(data->content_length);
+
+    /* Prepend the content length to the buffer.
+     * If we decide to not send the content to the transforming
+     * server then we need to make sure and skip input_reader
+     * over the content length.
+     */
+
+    {
+      TSIOBuffer temp;
+      TSIOBufferReader tempReader;
+
+      temp = TSIOBufferCreate();
+      tempReader = TSIOBufferReaderAlloc(temp);
+
+      TSIOBufferWrite(temp, (const char *) &content_length, sizeof(int));
+      TSIOBufferCopy(temp, data->input_reader, content_length, 0);
+
+      TSIOBufferReaderFree(data->input_reader);
+      TSIOBufferDestroy(data->input_buf);
+      data->input_buf = temp;
+      data->input_reader = tempReader;
+    }
+  } else {
+    TSError("TSIOBufferReaderAvail returns TS_ERROR");
+    return 0;
+  }
+
+  /* TODO: This only supports IPv4, probably should be changed at some point, but
+     it's an example ... */
+  memset(&ip_addr, 0, sizeof(ip_addr));
+  ip_addr.sin_family = AF_INET;
+  ip_addr.sin_addr.s_addr = server_ip; /* Should be in network byte order */
+  ip_addr.sin_port = server_port;
+  TSDebug("strans", "net connect..");
+  action = TSNetConnect(contp, (struct sockaddr const*)&ip_addr);
+
+  if (!TSActionDone(action)) {
+    data->pending_action = action;
+  }
+
+  return 0;
+}
+
+static int
+transform_write(TSCont contp, TransformData * data)
+{
+  int content_length;
+
+  data->state = STATE_WRITE;
+
+  content_length = TSIOBufferReaderAvail(data->input_reader);
+  if (content_length >= 0) {
+    data->server_vio = TSVConnWrite(data->server_vc, contp, TSIOBufferReaderClone(data->input_reader), content_length);
+  } else {
+    TSError("TSIOBufferReaderAvail returns TS_ERROR");
+  }
+  return 0;
+}
+
+static int
+transform_read_status(TSCont contp, TransformData * data)
+{
+  data->state = STATE_READ_STATUS;
+
+  data->output_buf = TSIOBufferCreate();
+  data->output_reader = TSIOBufferReaderAlloc(data->output_buf);
+  if (data->output_reader != NULL) {
+    data->server_vio = TSVConnRead(data->server_vc, contp, data->output_buf, sizeof(int));
+  } else {
+    TSError("Error in Allocating a Reader to output buffer. TSIOBufferReaderAlloc returns NULL");
+  }
+
+  return 0;
+}
+
+static int
+transform_read(TSCont contp, TransformData * data)
+{
+  data->state = STATE_READ;
+
+  TSIOBufferDestroy(data->input_buf);
+  data->input_buf = NULL;
+  data->input_reader = NULL;
+
+  data->server_vio = TSVConnRead(data->server_vc, contp, data->output_buf, data->content_length);
+  data->output_vc = TSTransformOutputVConnGet((TSVConn) contp);
+  if (data->output_vc == NULL) {
+    TSError("TSTransformOutputVConnGet returns NULL");
+  } else {
+    data->output_vio = TSVConnWrite(data->output_vc, contp, data->output_reader, data->content_length);
+    if (data->output_vio == NULL) {
+      TSError("TSVConnWrite returns NULL");
+    }
+  }
+
+  return 0;
+}
+
+static int
+transform_bypass(TSCont contp, TransformData * data)
+{
+  data->state = STATE_BYPASS;
+
+  if (data->server_vc) {
+    TSVConnAbort(data->server_vc, 1);
+    data->server_vc = NULL;
+    data->server_vio = NULL;
+  }
+
+  if (data->output_buf) {
+    TSIOBufferDestroy(data->output_buf);
+    data->output_buf = NULL;
+    data->output_reader = NULL;
+  }
+
+  TSIOBufferReaderConsume(data->input_reader, sizeof(int));
+  data->output_vc = TSTransformOutputVConnGet((TSVConn) contp);
+  if (data->output_vc == NULL) {
+    TSError("TSTransformOutputVConnGet returns NULL");
+  } else {
+    data->output_vio =
+      TSVConnWrite(data->output_vc, contp, data->input_reader, TSIOBufferReaderAvail(data->input_reader));
+    if (data->output_vio == NULL) {
+      TSError("TSVConnWrite returns NULL");
+    }
+  }
+  return 1;
+}
+
+static int
+transform_buffer_event(TSCont contp, TransformData * data, TSEvent event ATS_UNUSED, void *edata ATS_UNUSED)
+{
+  TSVIO write_vio;
+  int towrite;
+  int avail;
+
+  if (!data->input_buf) {
+    data->input_buf = TSIOBufferCreate();
+    data->input_reader = TSIOBufferReaderAlloc(data->input_buf);
+  }
+
+  /* Get the write VIO for the write operation that was performed on
+     ourself. This VIO contains the buffer that we are to read from
+     as well as the continuation we are to call when the buffer is
+     empty. */
+  write_vio = TSVConnWriteVIOGet(contp);
+
+  /* We also check to see if the write VIO's buffer is non-NULL. A
+     NULL buffer indicates that the write operation has been
+     shutdown and that the continuation does not want us to send any
+     more WRITE_READY or WRITE_COMPLETE events. For this buffered
+     transformation that means we're done buffering data. */
+  if (!TSVIOBufferGet(write_vio)) {
+    return transform_connect(contp, data);
+  }
+
+  /* Determine how much data we have left to read. For this server
+     transform plugin this is also the amount of data we have left
+     to write to the output connection. */
+  towrite = TSVIONTodoGet(write_vio);
+  if (towrite > 0) {
+    /* The amount of data left to read needs to be truncated by
+       the amount of data actually in the read buffer. */
+    avail = TSIOBufferReaderAvail(TSVIOReaderGet(write_vio));
+    if (towrite > avail) {
+      towrite = avail;
+    }
+
+    if (towrite > 0) {
+      /* Copy the data from the read buffer to the input buffer. */
+      TSIOBufferCopy(data->input_buf, TSVIOReaderGet(write_vio), towrite, 0);
+
+      /* Tell the read buffer that we have read the data and are no
+         longer interested in it. */
+      TSIOBufferReaderConsume(TSVIOReaderGet(write_vio), towrite);
+
+      /* Modify the write VIO to reflect how much data we've
+         completed. */
+      TSVIONDoneSet(write_vio, TSVIONDoneGet(write_vio) + towrite);
+    }
+  }
+
+  /* Now we check the write VIO to see if there is data left to
+     read. */
+  if (TSVIONTodoGet(write_vio) > 0) {
+    /* Call back the write VIO continuation to let it know that we
+       are ready for more data. */
+    TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_READY, write_vio);
+  } else {
+    /* Call back the write VIO continuation to let it know that we
+       have completed the write operation. */
+    TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_COMPLETE, write_vio);
+
+    /* start compression... */
+    return transform_connect(contp, data);
+  }
+
+  return 0;
+}
+
+static int
+transform_connect_event(TSCont contp, TransformData * data, TSEvent event, void *edata)
+{
+  switch (event) {
+  case TS_EVENT_NET_CONNECT:
+    TSDebug("strans", "connected");
+
+    data->pending_action = NULL;
+    data->server_vc = (TSVConn) edata;
+    return transform_write(contp, data);
+  case TS_EVENT_NET_CONNECT_FAILED:
+    TSDebug("strans", "connect failed");
+    data->pending_action = NULL;
+    return transform_bypass(contp, data);
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+static int
+transform_write_event(TSCont contp, TransformData * data, TSEvent event, void *edata ATS_UNUSED)
+{
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSVIOReenable(data->server_vio);
+    break;
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    return transform_read_status(contp, data);
+  case TS_EVENT_ERROR:
+    return transform_bypass(contp, data);
+  case TS_EVENT_IMMEDIATE:
+    TSVIOReenable(data->server_vio);
+    break;
+  default:
+    /* An error occurred while writing to the server. Close down
+       the connection to the server and bypass. */
+    return transform_bypass(contp, data);
+  }
+
+  return 0;
+}
+
+static int
+transform_read_status_event(TSCont contp, TransformData * data, TSEvent event, void *edata ATS_UNUSED)
+{
+  switch (event) {
+  case TS_EVENT_ERROR:
+  case TS_EVENT_VCONN_EOS:
+    return transform_bypass(contp, data);
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    if (TSIOBufferReaderAvail(data->output_reader) == sizeof(int)) {
+      TSIOBufferBlock blk;
+      char *buf;
+      void *buf_ptr;
+      int64_t avail;
+      int64_t read_nbytes = sizeof(int);
+      int64_t read_ndone = 0;
+
+      buf_ptr = &data->content_length;
+      while (read_nbytes > 0) {
+        blk = TSIOBufferReaderStart(data->output_reader);
+        buf = (char *) TSIOBufferBlockReadStart(blk, data->output_reader, &avail);
+        read_ndone = (avail >= read_nbytes) ? read_nbytes : avail;
+        memcpy(buf_ptr, buf, read_ndone);
+        if (read_ndone > 0) {
+          TSIOBufferReaderConsume(data->output_reader, read_ndone);
+          read_nbytes -= read_ndone;
+          /* move ptr frwd by read_ndone bytes */
+          buf_ptr = (char *) buf_ptr + read_ndone;
+        }
+      }
+      //data->content_length = ntohl(data->content_length);
+      return transform_read(contp, data);
+    }
+    return transform_bypass(contp, data);
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+static int
+transform_read_event(TSCont contp ATS_UNUSED, TransformData * data, TSEvent event, void *edata ATS_UNUSED)
+{
+  switch (event) {
+  case TS_EVENT_ERROR:
+    TSVConnAbort(data->server_vc, 1);
+    data->server_vc = NULL;
+    data->server_vio = NULL;
+
+    TSVConnAbort(data->output_vc, 1);
+    data->output_vc = NULL;
+    data->output_vio = NULL;
+    break;
+  case TS_EVENT_VCONN_EOS:
+    TSVConnAbort(data->server_vc, 1);
+    data->server_vc = NULL;
+    data->server_vio = NULL;
+
+    TSVConnAbort(data->output_vc, 1);
+    data->output_vc = NULL;
+    data->output_vio = NULL;
+    break;
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    TSVConnClose(data->server_vc);
+    data->server_vc = NULL;
+    data->server_vio = NULL;
+
+    TSVIOReenable(data->output_vio);
+    break;
+  case TS_EVENT_VCONN_READ_READY:
+    TSVIOReenable(data->output_vio);
+    break;
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSVConnShutdown(data->output_vc, 0, 1);
+    break;
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSVIOReenable(data->server_vio);
+    break;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+static int
+transform_bypass_event(TSCont contp ATS_UNUSED, TransformData * data, TSEvent event, void *edata ATS_UNUSED)
+{
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSVConnShutdown(data->output_vc, 0, 1);
+    break;
+  case TS_EVENT_VCONN_WRITE_READY:
+  default:
+    TSVIOReenable(data->output_vio);
+    break;
+  }
+
+  return 0;
+}
+
+static int
+transform_handler(TSCont contp, TSEvent event, void *edata)
+{
+  /* Check to see if the transformation has been closed by a call to
+     TSVConnClose. */
+  if (TSVConnClosedGet(contp)) {
+    TSDebug("strans", "transformation closed");
+    transform_destroy(contp);
+    return 0;
+  } else {
+    TransformData *data;
+    int val = 0;
+
+    data = (TransformData *)TSContDataGet(contp);
+    if (data == NULL) {
+      TSError("Didn't get Continuation's Data. Ignoring Event..");
+      return 0;
+    }
+    TSDebug("strans", "transform handler event [%d], data->state = [%d]",
+	    event, data->state);
+
+    do {
+      switch (data->state) {
+      case STATE_BUFFER:
+        val = transform_buffer_event(contp, data, event, edata);
+        break;
+      case STATE_CONNECT:
+        val = transform_connect_event(contp, data, event, edata);
+        break;
+      case STATE_WRITE:
+        val = transform_write_event(contp, data, event, edata);
+        break;
+      case STATE_READ_STATUS:
+        val = transform_read_status_event(contp, data, event, edata);
+        break;
+      case STATE_READ:
+        val = transform_read_event(contp, data, event, edata);
+        break;
+      case STATE_BYPASS:
+        val = transform_bypass_event(contp, data, event, edata);
+        break;
+      }
+    } while (val);
+  }
+
+  return 0;
+}
+
+static int
+request_ok(TSHttpTxn txnp ATS_UNUSED)
+{
+  /* Is the initial client request OK for transformation. This is a
+     good place to check accept headers to see if the client can
+     accept a transformed document. */
+  return 1;
+}
+
+static int
+cache_response_ok(TSHttpTxn txnp ATS_UNUSED)
+{
+  /* Is the response we're reading from cache OK for
+   * transformation. This is a good place to check the cached
+   * response to see if it is transformable. The default
+   * behavior is to cache transformed content; therefore
+   * to avoid transforming twice we will not transform
+   * content served from the cache.
+   */
+  return 0;
+}
+
+static int
+server_response_ok(TSHttpTxn txnp)
+{
+  /* Is the response the server sent OK for transformation. This is
+   * a good place to check the server's response to see if it is
+   * transformable. In this example, we will transform only "200 OK"
+   * responses.
+   */
+
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSHttpStatus resp_status;
+
+  if (TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("Unable to get handle to Server Response");
+    return 0;
+  }
+
+  resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+  if (TS_HTTP_STATUS_OK == resp_status) {
+    if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc) != TS_SUCCESS) {
+      TSError("Unable to release handle to server request");
+    }
+    return 1;
+  } else {
+    if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc) != TS_SUCCESS) {
+      TSError("Unable to release handle to server request");
+    }
+    return 0;
+  }
+}
+
+static int
+transform_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    if (request_ok(txnp)) {
+      TSHttpTxnHookAdd(txnp, TS_HTTP_READ_CACHE_HDR_HOOK, contp);
+      TSHttpTxnHookAdd(txnp, TS_HTTP_READ_RESPONSE_HDR_HOOK, contp);
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+  case TS_EVENT_HTTP_READ_CACHE_HDR:
+    if (cache_response_ok(txnp)) {
+      TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, transform_create(txnp));
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    if (server_response_ok(txnp)) {
+      TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, transform_create(txnp));
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+  default:
+    break;
+  }
+  return 0;
+}
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+  TSCont cont;
+
+  info.plugin_name = "server-transform";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  /* connect to the echo port on localhost */
+  server_ip = (127 << 24) | (0 << 16) | (0 << 8) | (1);
+  server_ip = htonl(server_ip);
+  server_port = 7;
+
+  cont = TSContCreate(transform_plugin, NULL);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
+}
diff --git a/example/session-1/session-1.c b/example/session-1/session-1.c
new file mode 100644
index 00000000..85476496
--- /dev/null
+++ b/example/session-1/session-1.c
@@ -0,0 +1,114 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* session-1.c: a plugin that illustrates how to use
+ *                session hooks
+ *
+ *
+ *  Usage: session-1.so
+ *
+ */
+
+#include <stdio.h>
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+static INKStat transaction_count;
+static INKStat session_count;
+static INKStat av_transaction;
+
+
+static void
+txn_handler(TSHttpTxn txnp, TSCont contp)
+{
+  int64_t num_txns = 0;
+
+  INKStatIncrement(transaction_count);
+  num_txns = INKStatIntGet(transaction_count);
+  TSDebug("tag_session", "The number of transactions is %" PRId64, num_txns);
+}
+
+
+static void
+handle_session(TSHttpSsn ssnp, TSCont contp)
+{
+  int64_t num_ssn = 0;
+
+  INKStatIncrement(session_count);
+  num_ssn = INKStatIntGet(session_count);
+  TSDebug("tag_session", "The number of sessions is %" PRId64, num_ssn);
+  TSHttpSsnHookAdd(ssnp, TS_HTTP_TXN_START_HOOK, contp);
+}
+
+static int
+ssn_handler(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpSsn ssnp;
+  TSHttpTxn txnp;
+
+  switch (event) {
+  case TS_EVENT_HTTP_SSN_START:
+
+    ssnp = (TSHttpSsn) edata;
+    handle_session(ssnp, contp);
+    TSHttpSsnReenable(ssnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+
+  case TS_EVENT_HTTP_TXN_START:
+    txnp = (TSHttpTxn) edata;
+    txn_handler(txnp, contp);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+
+  default:
+    TSDebug("tag_session", "In the default case: event = %d\n", event);
+    break;
+  }
+  return 0;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSCont contp;
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "session-1";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[PluginInit] Plugin registration failed.\n");
+    goto error;
+  }
+
+  transaction_count = INKStatCreate("transaction.count", INKSTAT_TYPE_INT64);
+  session_count = INKStatCreate("session.count", INKSTAT_TYPE_INT64);
+  av_transaction = INKStatCreate("avg.transactions", INKSTAT_TYPE_FLOAT);
+
+  contp = TSContCreate(ssn_handler, NULL);
+  TSHttpHookAdd(TS_HTTP_SSN_START_HOOK, contp);
+
+error:
+  TSError("[PluginInit] Plugin not initialized");
+}
diff --git a/example/thread-1/readme.txt b/example/thread-1/readme.txt
new file mode 100644
index 00000000..1829b8d0
--- /dev/null
+++ b/example/thread-1/readme.txt
@@ -0,0 +1,20 @@
+About thread-plugin.c
+
+This plugin sets up a callback to a continuation whose
+handler function creates a thread.
+
+TSPluginInit uses TSHttpHookAdd to create a 
+continuation that is called back after the HTTP
+origin server DNS lookup (the hook is 
+TS_HTTP_OS_DNS_HOOK). The handler function
+for the continuation is thread_plugin.
+
+The thread_plugin function creates a thread using 
+TSThreadCreate(), passing it the reenable_txn function
+as follows:
+TSThreadCreate(reenable_txn, edta);
+
+The thread runs the reenable_txn function, which simply
+reenables the HTTP transaction using TSHttpTxnReenable(). 
+The thread is automatically destroyed when the function 
+returns.
diff --git a/example/thread-1/thread-1.c b/example/thread-1/thread-1.c
new file mode 100644
index 00000000..5af75318
--- /dev/null
+++ b/example/thread-1/thread-1.c
@@ -0,0 +1,82 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* thread-1.c:  an example program that creates a thread
+ *
+ *
+ *
+ *	Usage:
+ *	  thread-1.so
+ *
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+static void *
+reenable_txn(void *data)
+{
+  TSHttpTxn txnp = (TSHttpTxn) data;
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return NULL;
+}
+
+static int
+thread_plugin(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  switch (event) {
+  case TS_EVENT_HTTP_OS_DNS:
+      /**
+       * Check if the thread has been created successfully or not.
+       * If the thread has not been created successfully, assert.
+       */
+    if (!TSThreadCreate(reenable_txn, edata)) {
+      TSReleaseAssert(!"Failure in thread creation");
+    }
+    return 0;
+  default:
+    break;
+  }
+  return 0;
+}
+
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "thread-1";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, TSContCreate(thread_plugin, NULL));
+}
diff --git a/example/thread-pool/README.txt b/example/thread-pool/README.txt
new file mode 100644
index 00000000..54328722
--- /dev/null
+++ b/example/thread-pool/README.txt
@@ -0,0 +1,133 @@
+
+	Thread pool sample plugin for SDK 3.0
+	-------------------------------------
+
+List of files:
+==============
+ Plugin
+ ------
+ - psi.c : proxy side include plugin
+ - thread.h : thread pool header
+ - thread.c : thread pool implementation
+
+ Tools for testing
+ -----------------
+ - include/gen.c : utility to generate text files of various size
+ - include/gen_inc.sh : script to generate include files for testing
+
+ - test/SDKTest/psi_server.c : SDKTest server plugins to test psi
+ - test/SDKTest/SDKtest_server.config : SDKTest config file
+
+
+Description
+===========
+ The plugin looks for the specific header "X-Psi" in the OS HTTP response.
+ If this header is found, and if the document is of type text/html,
+ the plugin parses the response body to find include tags: "<--include=filename-->".
+
+ When an include tag is found, the plugin substitutes it by the content
+ of the file `filename`.
+
+ Filename must be a simple filename. It can not contain a path (relative or absolute).
+
+ Example:
+ --------
+ The OS sends the following HTTP response:
+	HTTP/1.0 200 OK\r\n
+	Content-Type: text/html\r\n
+	X-Psi: true\r\n
+	\r\n\r\n
+	<HTML>
+	My html source code
+	<!--include=my_include.txt-->
+	Some more html code
+	</HTML>
+
+ The text file 'include.txt' on the proxy filesystem contains:
+	include content line 1
+	include content line 2
+	include content line 3
+
+ The response processed by the proxy and finally sent to the client is:
+	HTTP/1.0 200 OK\r\n
+	Content-Type: text/html\r\n
+	X-Psi: true\r\n
+	\r\n\r\n
+	<HTML>
+	My html source code
+	include content line 1
+	include content line 2
+	include content line 3
+	Some more html code
+	</HTML>
+ Note that the content of the 'include.txt' file is now inserted into
+ the body of the HTML response.
+ 
+
+Architecture
+============
+
+ Pool of threads
+ ---------------
+ The psi plugin uses a pool of threads to make system blocking calls (access to disk).
+ This is to avoid blocking a TS thread and slowing down the whole TS.
+
+ High level algorithm:
+ --------------------
+ 0. At init time, the plugin spawns threads.
+ 1. The plugin scans any HTTP response message header for the specific header X-Psi.
+ 2. If found, it sets up a transformation.
+ 3. The transformation parses the HTML content.
+ 4. When an include tag is found, the plugin creates a job and put it into
+    the thread's queue of jobs.
+ 5. Then it goes into an inactive mode, waiting for the job to get done by a thread.
+ 6. A thread picks up the job. Reads the file from the disk (blocking system call).
+    Then reenables the transformation.
+ 7. The transformation insert the content of the file into the HTML body.
+ 8. Go to step 8.
+
+
+
+Plugin Installation
+===================
+ Add a line to Traffic Server plugin.config with the name of the plugin: psi.so
+ No arguments required.
+
+ The files to include must be located under the directory <plugin_path>/include
+ <plugin_path> is the path where the psi.so library is located
+ (by default $TS_HOME/etc/trafficserver/plugins)
+
+ Start TS as usual. Now any HTTP response with the X-Psi headers will be processed
+ by the PSI plugin.
+
+ 
+
+Plugin Testing
+==============
+
+ Sample include file generation
+ ------------------------------
+ A basic utility ('gen')to generate files to be inserted is provided
+ in the directory thread-pool/include.
+ This create text files of various sizes.
+ Compile gen the execute gen_inc.sh to generate files:
+ > cd include
+ > make
+ > gen_inc.sh
+
+ Load
+ ----
+ SDKTest can be used to test this plugin. SDKTest allows to simulate:
+  - synthetic clients sending requests
+  - a synthetic origin server
+
+ The synthetic origin server has to be customized in order to send back
+ responses that contains the specific 'X-Psi' header.
+ This is done through a SDKTest server plugin. 
+ 
+ The rate of responses with X-Psi header is configurable thru a SDKTest config file.
+
+ A SDKTest server plugin as well as a SDKTest configuration file
+ are provided in the directory thread-pool/test/SDKTest.
+ Refer to the SDKTest manual for detailed setup instructions.
+
diff --git a/example/thread-pool/TESTPLAN.txt b/example/thread-pool/TESTPLAN.txt
new file mode 100644
index 00000000..c2141154
--- /dev/null
+++ b/example/thread-pool/TESTPLAN.txt
@@ -0,0 +1,74 @@
+	Thread-Pool Sample Plugin Testing
+	=================================
+
+
+Functional testing
+==================
+
+SynTest test cases are provided for functional testing as well as
+boundary testing.
+
+List of tests:
+--------------
+Test case are under thread-pool/test/SynTest/Tests/Psi
+1.cfg:Description: PSI Plugin - Include tag at the beginning of doc 
+2.cfg:Description: PSI Plugin - include tag middle of body doc 
+3.cfg:Description: PSI Plugin - include tag end of body doc 
+4.cfg:Description: PSI Plugin - 2 include tags in the same body 
+5.cfg:Description: PSI Plugin - Boundary case: no filename in include 
+6.cfg:Description: PSI Plugin - Boundary case: include tag doesn't end 
+7.cfg:Description: PSI Plugin - Boundary case: include file doesn't exist 
+8.cfg:Description: PSI Plugin - Boundary case: tag similar to include but slightly different 
+9.cfg:Description: PSI Plugin - Boundary case: include file is empty 
+10.cfg:Description: PSI Plugin - Boundary case: huge file to include 
+11.cfg:Description: PSI Plugin - Boundary case: no X-Psi header 
+12.cfg:Description: PSI Plugin - Boundary case: Server Aborts in middle of header
+13.cfg:Description: PSI Plugin - Boundary case: Server Aborts in middle of body 
+
+SynTest config file:
+--------------------
+SynTest config files are under thread-pool/test/SynTest
+ - system.cfg: master SynTest config file
+ - tests_psi.cfg: test plan for SynTest
+
+Tests setup:
+------------
+ - Update plugin.config to add the psi plugin
+ - Generate the include files using the gen_inc.sh tool in thread-pool/include
+ - Copy the include files into $TS_HOME/etc/trafficserver/plugins/include
+ - Start TS
+ - Start SynTest
+
+Expected tests result:
+----------------------
+All tests should pass.
+
+
+Load Testing
+============
+
+SDKTest is used for load testing.
+
+A SDKTest server plugin is required to exercise the plugin (the server
+must send back responses with 'X-Psi' header).
+
+The SDKTest server plugin is located under thread-pool/test/SDKTest
+A SDKTest configuration file is also provided (allows to change the ratio
+of X-Psi responses).
+
+Tests setup:
+------------
+TS setup:
+ - Update plugin.config to add the psi plugin
+ - Generate the include files using the gen_inc.sh tool in thread-pool/include
+ - Copy the include files into $TS_HOME/etc/trafficserver/plugins/include
+ - Start TS
+
+SDKTest setup (Refer to SDKTest manual for detailed instructions):
+ - Compile and install the SDKTest server plugin
+ - Configure SDKTest using the provided config file
+ - Start SDKTest
+
+Expected tests result:
+----------------------
+Load testing should run for 24hours with no crash and no mem leak.
diff --git a/example/thread-pool/include/Makefile.am b/example/thread-pool/include/Makefile.am
new file mode 100644
index 00000000..1be7856f
--- /dev/null
+++ b/example/thread-pool/include/Makefile.am
@@ -0,0 +1,23 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+all:  gen 
+
+gen: gen.c
+	$(CC) -o gen gen.c
+
+clean-local:
+	rm -f gen gen.o 
diff --git a/example/thread-pool/include/gen.c b/example/thread-pool/include/gen.c
new file mode 100644
index 00000000..a4ec4e53
--- /dev/null
+++ b/example/thread-pool/include/gen.c
@@ -0,0 +1,40 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+  int i;
+
+  if (argc != 2) {
+    fprintf(stderr, "Syntax: gen N (with N number of bytes to generate).\n");
+    exit(-1);
+  }
+
+  for (i = 0; i < atoi(argv[1]); i++) {
+    printf("%d", i % 10);
+  }
+
+}
diff --git a/example/thread-pool/include/gen_inc.sh b/example/thread-pool/include/gen_inc.sh
new file mode 100644
index 00000000..de9d871f
--- /dev/null
+++ b/example/thread-pool/include/gen_inc.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+GEN=./gen
+
+# Generate docs for SynTest test cases
+
+$GEN 0 > incfile0.txt
+$GEN 100 > incfile1.txt
+$GEN 50000 > incfile2.txt
+
+# Generate docs for SDKTest test cases
+
+# docs of size 0, 10k, 20k, 30k, ... 90k
+for i in 0 1 2 3 4 5 6 7 8 9
+do
+  $GEN ${i}0000 > file${i}.txt
+done
+
+# docs of size 1.1k, 1.2k, ...,2.0k, ..., 9.9k
+for i in 1 2 3 4 5 6 7 8 9
+do
+    for j in 0 1 2 3 4 5 6 7 8 9 
+    do
+        $GEN ${i}${j}00 > file${i}${j}.txt
+    done
+done
diff --git a/example/thread-pool/psi.c b/example/thread-pool/psi.c
new file mode 100644
index 00000000..24fef914
--- /dev/null
+++ b/example/thread-pool/psi.c
@@ -0,0 +1,1038 @@
+/** @file
+
+  Proxy Side Include plugin (PSI)
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *
+ *
+ *
+ *	Usage:
+ *	  psi.so
+ *
+ *  Proxy Side Include plugin (PSI)
+ *
+ *   Synopsis:
+ *
+ *  This plugin allows to insert the content of a file stored on the proxy disk
+ *  into the body of an html response.
+ *
+ *  The plugin illustrates how to use a pool of threads in order to do blocking
+ *  calls (here, some disk i/o) in a Traffic Server plugin.
+ *
+ *
+ *   Details:
+ *
+ *  Refer to README file.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+
+#include "ts/ts.h"
+#include "thread.h"
+#include "ink_defs.h"
+
+#define DBG_TAG "xpsi"
+
+/* This is the number of threads spawned by the plugin.
+   Should be tuned based on performance requirements,
+   blocking calls duration, etc... */
+#define NB_THREADS 3
+
+
+#define PSI_FILENAME_MAX_SIZE 512
+#define PSI_PATH_MAX_SIZE     256
+#define PSI_PATH "include"
+
+#define PSI_START_TAG      "<!--include="
+#define PSI_START_TAG_LEN  12
+
+#define PSI_END_TAG        "-->"
+#define PSI_END_TAG_LEN    3
+
+#define MIME_FIELD_XPSI "X-Psi"
+
+typedef enum
+{
+  STATE_READ_DATA = 1,
+  STATE_READ_PSI = 2,
+  STATE_DUMP_PSI = 3
+} PluginState;
+
+typedef enum
+{
+  PARSE_SEARCH,
+  PARSE_EXTRACT,
+} ParseState;
+
+
+typedef struct
+{
+  unsigned int magic;
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+
+  TSIOBuffer psi_buffer;
+  TSIOBufferReader psi_reader;
+  char psi_filename[PSI_FILENAME_MAX_SIZE + 128];
+  int psi_filename_len;
+  int psi_success;
+
+  ParseState parse_state;
+
+  PluginState state;
+  int transform_bytes;
+} ContData;
+
+
+typedef struct
+{
+  TSCont contp;
+  TSEvent event;
+} TryLockData;
+
+
+typedef enum
+{
+  STR_SUCCESS,
+  STR_PARTIAL,
+  STR_FAIL
+} StrOperationResult;
+
+
+extern Queue job_queue;
+
+static TSTextLogObject log;
+static char psi_directory[PSI_PATH_MAX_SIZE];
+
+
+static int trylock_handler(TSCont contp, TSEvent event, void *edata);
+
+/*-------------------------------------------------------------------------
+  cont_data_alloc
+  Allocate and initialize a ContData structure associated to a transaction
+
+  Input:
+  Output:
+  Return Value:
+    Pointer on a new allocated ContData structure
+  -------------------------------------------------------------------------*/
+static ContData *
+cont_data_alloc()
+{
+  ContData *data;
+
+  data = (ContData *) TSmalloc(sizeof(ContData));
+  data->magic = MAGIC_ALIVE;
+  data->output_vio = NULL;
+  data->output_buffer = NULL;
+  data->output_reader = NULL;
+
+  data->psi_buffer = NULL;
+  data->psi_reader = NULL;
+  data->psi_filename[0] = '\0';
+  data->psi_filename_len = 0;
+  data->psi_success = 0;
+
+  data->parse_state = PARSE_SEARCH;
+
+  data->state = STATE_READ_DATA;
+  data->transform_bytes = 0;
+
+  return data;
+}
+
+
+/*-------------------------------------------------------------------------
+  cont_data_destroy
+  Deallocate ContData structure associated to a transaction
+
+  Input:
+    data   structure to deallocate
+  Output:
+  Return Value:
+    none
+  -------------------------------------------------------------------------*/
+static void
+cont_data_destroy(ContData * data)
+{
+  TSDebug(DBG_TAG, "Destroying continuation data");
+  if (data) {
+    TSAssert(data->magic == MAGIC_ALIVE);
+    if (data->output_reader) {
+      TSIOBufferReaderFree(data->output_reader);
+      data->output_reader = NULL;
+    }
+    if (data->output_buffer) {
+      TSIOBufferDestroy(data->output_buffer);
+      data->output_buffer = NULL;
+    }
+    if (data->psi_reader) {
+      TSIOBufferReaderFree(data->psi_reader);
+      data->psi_reader = NULL;
+    }
+    if (data->psi_buffer) {
+      TSIOBufferDestroy(data->psi_buffer);
+      data->psi_buffer = NULL;
+    }
+    data->magic = MAGIC_DEAD;
+    TSfree(data);
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  strsearch_ioreader
+  Looks for string pattern in an iobuffer
+
+  Input:
+    reader   reader on a iobuffer
+    pattern  string to look for (nul terminated)
+  Output:
+    nparse   number of chars scanned, excluding the matching pattern
+  Return Value:
+    STR_SUCCESS if pattern found
+    STR_PARTIAL if pattern found partially
+    STR_FAIL    if pattern not found
+  -------------------------------------------------------------------------*/
+static StrOperationResult
+strsearch_ioreader(TSIOBufferReader reader, const char *pattern, int *nparse)
+{
+  int index = 0;
+  TSIOBufferBlock block = TSIOBufferReaderStart(reader);
+  int slen = strlen(pattern);
+
+  if (slen <= 0) {
+    return STR_FAIL;
+  }
+
+  *nparse = 0;
+
+  /* Loop thru each block while we've not yet found the pattern */
+  while ((block != NULL) && (index < slen)) {
+    int64_t blocklen;
+    const char *blockptr = TSIOBufferBlockReadStart(block, reader, &blocklen);
+    const char *ptr;
+
+    for (ptr = blockptr; ptr < blockptr + blocklen; ptr++) {
+      (*nparse)++;
+      if (*ptr == pattern[index]) {
+        index++;
+        if (index == slen) {
+          break;
+        }
+      } else {
+        index = 0;
+      }
+    }
+
+    /* Parse next block */
+    block = TSIOBufferBlockNext(block);
+  }
+
+  *nparse -= index;             /* Adjust nparse so it doesn't include matching chars */
+  if (index == slen) {
+    TSDebug(DBG_TAG, "strfind: match for %s at position %d", pattern, *nparse);
+    return STR_SUCCESS;
+  } else if (index > 0) {
+    TSDebug(DBG_TAG, "strfind: partial match for %s at position %d", pattern, *nparse);
+    return STR_PARTIAL;
+  } else {
+    TSDebug(DBG_TAG, "strfind no match for %s", pattern);
+    return STR_FAIL;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  strextract_ioreader
+  Extract a string from an iobuffer.
+  Start reading at position offset in iobuffer and extract until the
+  string end_pattern is found.
+
+  Input:
+    reader      reader on a iobuffer
+    offset      position to start reading
+    end_pattern the termination string (nul terminated)
+  Output:
+    buffer      if success, contains the extracted string, nul terminated
+    buflen      if success, contains the buffer length (excluding null char).
+  Return Value:
+    STR_SUCCESS if extraction successful
+    STR_PARTIAL if extraction not yet completed
+    STR_FAIL    if extraction failed
+  -------------------------------------------------------------------------*/
+static int
+strextract_ioreader(TSIOBufferReader reader, int offset, const char *end_pattern, char *buffer, int *buflen)
+{
+  int buf_idx = 0;
+  int p_idx = 0;
+  int nbytes_so_far = 0;
+  int plen = strlen(end_pattern);
+  const char *ptr;
+  TSIOBufferBlock block = TSIOBufferReaderStart(reader);
+
+  if (plen <= 0) {
+    return STR_FAIL;
+  }
+
+  /* Now start extraction */
+  while ((block != NULL) && (p_idx < plen) && (buf_idx < PSI_FILENAME_MAX_SIZE)) {
+    int64_t blocklen;
+    const char *blockptr = TSIOBufferBlockReadStart(block, reader, &blocklen);
+
+    for (ptr = blockptr; ptr < blockptr + blocklen; ptr++, nbytes_so_far++) {
+      if (nbytes_so_far >= offset) {
+
+        /* Add a new character to the filename */
+        buffer[buf_idx++] = *ptr;
+
+        /* If we have reach the end of the filename, we're done */
+        if (end_pattern[p_idx] == *ptr) {
+          p_idx++;
+          if (p_idx == plen) {
+            break;
+          }
+        } else {
+          p_idx = 0;
+        }
+
+        /* The filename is too long, something is fishy... let's abort extraction */
+        if (buf_idx >= PSI_FILENAME_MAX_SIZE) {
+          break;
+        }
+      }
+    }
+
+    block = TSIOBufferBlockNext(block);
+  }
+
+  /* Error, could not read end of filename */
+  if (buf_idx >= PSI_FILENAME_MAX_SIZE) {
+    TSDebug(DBG_TAG, "strextract: filename too long");
+    *buflen = 0;
+    return STR_FAIL;
+  }
+
+  /* Full Match */
+  if (p_idx == plen) {
+    /* Nul terminate the filename, remove the end_pattern copied into the buffer */
+    *buflen = buf_idx - plen;
+    buffer[*buflen] = '\0';
+    TSDebug(DBG_TAG, "strextract: filename = |%s|", buffer);
+    return STR_SUCCESS;
+  }
+  /* End of filename not yet reached we need to read some more data */
+  else {
+    TSDebug(DBG_TAG, "strextract: partially extracted filename");
+    *buflen = buf_idx - p_idx;
+    return STR_PARTIAL;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  parse_data
+  Search for psi filename in the data.
+
+  Input:
+    contp   continuation for the current transaction
+    reader  reader on the iobuffer that contains data
+    avail   amount of data available in the iobuffer
+  Output:
+    towrite    amount of data in the iobuffer that can be written
+               to the downstream vconnection
+    toconsume  amount of data in the iobuffer to consume
+  Return Value:
+    0   if no psi filename found
+    1  if a psi filename was found
+  -------------------------------------------------------------------------*/
+static int
+parse_data(TSCont contp, TSIOBufferReader input_reader, int avail, int *toconsume, int *towrite)
+{
+  ContData *data;
+  int nparse = 0;
+  int status;
+
+  data = TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  if (data->parse_state == PARSE_SEARCH) {
+
+    /* Search for the start pattern */
+    status = strsearch_ioreader(input_reader, PSI_START_TAG, &nparse);
+    switch (status) {
+    case STR_FAIL:
+      /* We didn't found the pattern */
+      *toconsume = avail;
+      *towrite = avail;
+      data->parse_state = PARSE_SEARCH;
+      return 0;
+    case STR_PARTIAL:
+      /* We need to read some more data */
+      *toconsume = nparse;
+      *towrite = nparse;
+      data->parse_state = PARSE_SEARCH;
+      return 0;
+    case STR_SUCCESS:
+      /* We found the start_pattern, let's go ahead */
+      data->psi_filename_len = 0;
+      data->psi_filename[0] = '\0';
+      data->parse_state = PARSE_EXTRACT;
+      break;
+    default:
+      TSAssert(!"strsearch_ioreader returned unexpected status");
+    }
+  }
+
+
+  /* And now let's extract the filename */
+  status = strextract_ioreader(input_reader, nparse + PSI_START_TAG_LEN,
+                               PSI_END_TAG, data->psi_filename, &data->psi_filename_len);
+  switch (status) {
+  case STR_FAIL:
+    /* We couldn't extract a valid filename */
+    *toconsume = nparse;
+    *towrite = nparse;
+    data->parse_state = PARSE_SEARCH;
+    return 0;
+  case STR_PARTIAL:
+    /* We need to read some more data */
+    *toconsume = nparse;
+    *towrite = nparse;
+    data->parse_state = PARSE_EXTRACT;
+    return 0;
+  case STR_SUCCESS:
+    /* We got a valid filename */
+    *toconsume = nparse + PSI_START_TAG_LEN + data->psi_filename_len + PSI_END_TAG_LEN;
+    *towrite = nparse;
+    data->parse_state = PARSE_SEARCH;
+    return 1;
+  default:
+    TSAssert(!"strextract_ioreader returned bad status");
+  }
+
+  return 0;
+}
+
+//TODO: Use libc basename function
+//
+/*-------------------------------------------------------------------------
+  strip_path
+  Utility func to strip path from a filename (= _basename cmd on unix)
+  Input:
+    filename
+  Output :
+    None
+  Return Value:
+    Filename with path stripped
+  -------------------------------------------------------------------------*/
+static const char *
+_basename(const char *filename)
+{
+  char *cptr;
+  const char *ptr = filename;
+
+  while ((cptr = strchr(ptr, (int) '/')) != NULL) {
+    ptr = cptr + 1;
+  }
+  return ptr;
+}
+
+/*-------------------------------------------------------------------------
+  psi_include
+  Read file to include. Copy its content into an iobuffer.
+
+  This is the function doing blocking calls and called by the plugin's threads
+
+  Input:
+    data      continuation for the current transaction
+  Output :
+    data->psi_buffer  contains the file content
+    data->psi_sucess  0 if include failed, 1 if success
+  Return Value:
+    0  if failure
+    1  if success
+  -------------------------------------------------------------------------*/
+static int
+psi_include(TSCont contp, void *edata ATS_UNUSED)
+{
+#define BUFFER_SIZE 1024
+  ContData *data;
+  TSFile filep;
+  char buf[BUFFER_SIZE];
+  char inc_file[PSI_PATH_MAX_SIZE + PSI_FILENAME_MAX_SIZE];
+
+  /* We manipulate plugin continuation data from a separate thread.
+     Grab mutex to avoid concurrent access */
+  TSMutexLock(TSContMutexGet(contp));
+  data = TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  if (!data->psi_buffer) {
+    data->psi_buffer = TSIOBufferCreate();
+    data->psi_reader = TSIOBufferReaderAlloc(data->psi_buffer);
+  }
+
+  /* For security reason, we do not allow to include files that are
+     not in the directory <plugin_path>/include.
+     Also include file cannot contain any path. */
+  sprintf(inc_file, "%s/%s", psi_directory, _basename(data->psi_filename));
+
+  /* Read the include file and copy content into iobuffer */
+  if ((filep = TSfopen(inc_file, "r")) != NULL) {
+    TSDebug(DBG_TAG, "Reading include file %s", inc_file);
+
+    while (TSfgets(filep, buf, BUFFER_SIZE) != NULL) {
+      TSIOBufferBlock block;
+      int64_t len, avail, ndone, ntodo, towrite;
+      char *ptr_block;
+
+      len = strlen(buf);
+      ndone = 0;
+      ntodo = len;
+      while (ntodo > 0) {
+        /* TSIOBufferStart allocates more blocks if required */
+        block = TSIOBufferStart(data->psi_buffer);
+        ptr_block = TSIOBufferBlockWriteStart(block, &avail);
+        towrite = MIN(ntodo, avail);
+
+        memcpy(ptr_block, buf + ndone, towrite);
+        TSIOBufferProduce(data->psi_buffer, towrite);
+        ntodo -= towrite;
+        ndone += towrite;
+      }
+    }
+    TSfclose(filep);
+    data->psi_success = 1;
+    if (log) {
+      TSTextLogObjectWrite(log, "Successfully included file: %s", inc_file);
+    }
+  } else {
+    data->psi_success = 0;
+    if (log) {
+      TSTextLogObjectWrite(log, "Failed to include file: %s", inc_file);
+    }
+  }
+
+  /* Change state and schedule an event EVENT_IMMEDIATE on the plugin continuation
+     to let it know we're done. */
+
+  /* Note: if the blocking call was not in the transformation state (i.e. in
+     TS_HTTP_READ_REQUEST_HDR, TS_HTTP_OS_DNS and so on...) we could
+     use TSHttpTxnReenable to wake up the transaction instead of sending an event. */
+
+  TSContSchedule(contp, 0, TS_THREAD_POOL_DEFAULT);
+  data->psi_success = 0;
+  data->state = STATE_READ_DATA;
+  TSMutexUnlock(TSContMutexGet(contp));
+
+  return 0;
+}
+
+/*-------------------------------------------------------------------------
+  wake_up_streams
+  Send an event to the upstream vconnection to either
+    - ask for more data
+    - let it know we're done
+  Reenable the downstream vconnection
+  Input:
+    contp      continuation for the current transaction
+  Output :
+  Return Value:
+   0 if failure
+   1 if success
+  -------------------------------------------------------------------------*/
+static int
+wake_up_streams(TSCont contp)
+{
+  TSVIO input_vio;
+  ContData *data;
+  int ntodo;
+
+  data = TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  input_vio = TSVConnWriteVIOGet(contp);
+  ntodo = TSVIONTodoGet(input_vio);
+
+  if (ntodo > 0) {
+    TSVIOReenable(data->output_vio);
+    TSContCall(TSVIOContGet(input_vio), TS_EVENT_VCONN_WRITE_READY, input_vio);
+  } else {
+    TSDebug(DBG_TAG, "Total bytes produced by transform = %d", data->transform_bytes);
+    TSVIONBytesSet(data->output_vio, data->transform_bytes);
+    TSVIOReenable(data->output_vio);
+    TSContCall(TSVIOContGet(input_vio), TS_EVENT_VCONN_WRITE_COMPLETE, input_vio);
+  }
+
+  return 1;
+}
+
+
+/*-------------------------------------------------------------------------
+  handle_transform
+   Get data from upstream vconn.
+   Parse it.
+   Include file if include tags found.
+   Copy data to downstream vconn.
+   Wake up upstream to get more data.
+
+  Input:
+    contp      continuation for the current transaction
+  Output :
+  Return Value:
+   0 if failure
+   1 if success
+  -------------------------------------------------------------------------*/
+static int
+handle_transform(TSCont contp)
+{
+  TSVConn output_conn;
+  TSVIO input_vio;
+  ContData *data;
+  TSIOBufferReader input_reader;
+  int toread, avail, psi, toconsume, towrite;
+
+  /* Get the output (downstream) vconnection where we'll write data to. */
+  output_conn = TSTransformOutputVConnGet(contp);
+
+  /* Get upstream vio */
+  input_vio = TSVConnWriteVIOGet(contp);
+  data = TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  if (!data->output_buffer) {
+    data->output_buffer = TSIOBufferCreate();
+    data->output_reader = TSIOBufferReaderAlloc(data->output_buffer);
+
+    /* INT64_MAX because we don't know yet how much bytes we'll produce */
+    data->output_vio = TSVConnWrite(output_conn, contp, data->output_reader, INT64_MAX);
+  }
+
+  /* If the input VIO's buffer is NULL, the transformation is over */
+  if (!TSVIOBufferGet(input_vio)) {
+    TSDebug(DBG_TAG, "input_vio NULL, terminating transformation");
+    TSVIONBytesSet(data->output_vio, data->transform_bytes);
+    TSVIOReenable(data->output_vio);
+    return 1;
+  }
+
+  /* Determine how much data we have left to read. */
+  toread = TSVIONTodoGet(input_vio);
+
+  if (toread > 0) {
+    input_reader = TSVIOReaderGet(input_vio);
+    avail = TSIOBufferReaderAvail(input_reader);
+
+    /* There are some data available for reading. Let's parse it */
+    if (avail > 0) {
+
+      /* No need to parse data if there are too few bytes left to contain
+         an include command... */
+      if (toread > (PSI_START_TAG_LEN + PSI_END_TAG_LEN)) {
+        psi = parse_data(contp, input_reader, avail, &toconsume, &towrite);
+      } else {
+        towrite = avail;
+        toconsume = avail;
+        psi = 0;
+      }
+
+      if (towrite > 0) {
+        /* Update the total size of the doc so far */
+        data->transform_bytes += towrite;
+
+        /* Copy the data from the read buffer to the output buffer. */
+        /* TODO: Should we check the return value of TSIOBufferCopy() ? */
+        TSIOBufferCopy(TSVIOBufferGet(data->output_vio), TSVIOReaderGet(input_vio), towrite, 0);
+        /* Reenable the output connection so it can read the data we've produced. */
+        TSVIOReenable(data->output_vio);
+      }
+
+      if (toconsume > 0) {
+        /* Consume data we've processed an we are no longer interested in */
+        TSIOBufferReaderConsume(input_reader, toconsume);
+
+        /* Modify the input VIO to reflect how much data we've completed. */
+        TSVIONDoneSet(input_vio, TSVIONDoneGet(input_vio) + toconsume);
+      }
+
+      /* Did we find a psi filename to execute in the data ? */
+      if (psi) {
+        Job *new_job;
+        /* Add a request to include a file into the jobs queue.. */
+        /* We'll be called back once it's done with an EVENT_IMMEDIATE */
+        TSDebug(DBG_TAG, "Psi filename extracted. Adding an include job to thread queue.");
+        data->state = STATE_READ_PSI;
+
+        /* Create a new job request and add it to the queue */
+        new_job = job_create(contp, &psi_include, NULL);
+        add_to_queue(&job_queue, new_job);
+
+        /* Signal to the threads there is a new job */
+        thread_signal_job();
+
+        return 1;
+      }
+    }
+  }
+
+  /* Wake up upstream and downstream vconnections */
+  wake_up_streams(contp);
+
+  return 1;
+}
+
+
+/*-------------------------------------------------------------------------
+  dump_psi
+  Dump the psi_output to the downstream vconnection.
+
+  Input:
+    contp      continuation for the current transaction
+  Output :
+  Return Value:
+   0 if failure
+   1 if success
+  -------------------------------------------------------------------------*/
+static int
+dump_psi(TSCont contp)
+{
+  ContData *data;
+  int psi_output_len;
+
+  /* TODO: This is odd, do we need to get the input_vio, but never use it ?? */
+#if 0
+  TSVIO input_vio;
+  input_vio = TSVConnWriteVIOGet(contp);
+#endif
+
+  data = TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  /* If script exec succeded, copy its output to the downstream vconn */
+  if (data->psi_success == 1) {
+    psi_output_len = TSIOBufferReaderAvail(data->psi_reader);
+
+    if (psi_output_len > 0) {
+      data->transform_bytes += psi_output_len;
+
+      TSDebug(DBG_TAG, "Inserting %d bytes from include file", psi_output_len);
+      /* TODO: Should we check the return value of TSIOBufferCopy() ? */
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), data->psi_reader, psi_output_len, 0);
+      /* Consume all the output data */
+      TSIOBufferReaderConsume(data->psi_reader, psi_output_len);
+
+      /* Reenable the output connection so it can read the data we've produced. */
+      TSVIOReenable(data->output_vio);
+    }
+  }
+
+  /* Change state to finish up reading upstream data */
+  data->state = STATE_READ_DATA;
+  return 0;
+}
+
+
+/*-------------------------------------------------------------------------
+  transform_handler
+  Handler for all events received during the transformation process
+
+  Input:
+    contp      continuation for the current transaction
+    event      event received
+    data       pointer on optional data
+  Output :
+  Return Value:
+  -------------------------------------------------------------------------*/
+static int
+transform_handler(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  TSVIO input_vio;
+  ContData *data;
+  int state, retval;
+
+  /* This section will be called by both TS internal
+     and the thread. Protect it with a mutex to avoid
+     concurrent calls. */
+
+  /* Handle TryLock result */
+  if (TSMutexLockTry(TSContMutexGet(contp)) != TS_SUCCESS) {
+    TSCont c = TSContCreate(trylock_handler, NULL);
+    TryLockData *d = TSmalloc(sizeof(TryLockData));
+
+    d->contp = contp;
+    d->event = event;
+    TSContDataSet(c, d);
+    TSContSchedule(c, 10, TS_THREAD_POOL_DEFAULT);
+    return 1;
+  }
+
+  data = TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  state = data->state;
+
+  /* Check to see if the transformation has been closed */
+  retval = TSVConnClosedGet(contp);
+  if (retval) {
+    /* If the thread is still executing its job, we don't want to destroy
+       the continuation right away as the thread will call us back
+       on this continuation. */
+    if (state == STATE_READ_PSI) {
+      TSContSchedule(contp, 10, TS_THREAD_POOL_DEFAULT);
+    } else {
+      TSMutexUnlock(TSContMutexGet(contp));
+      cont_data_destroy(TSContDataGet(contp));
+      TSContDestroy(contp);
+      return 1;
+    }
+  } else {
+    switch (event) {
+    case TS_EVENT_ERROR:
+      input_vio = TSVConnWriteVIOGet(contp);
+      TSContCall(TSVIOContGet(input_vio), TS_EVENT_ERROR, input_vio);
+      break;
+
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+
+    case TS_EVENT_VCONN_WRITE_READY:
+      /* downstream vconnection is done reading data we've write into it.
+         let's read some more data from upstream if we're in read state. */
+      if (state == STATE_READ_DATA) {
+        handle_transform(contp);
+      }
+      break;
+
+    case TS_EVENT_IMMEDIATE:
+      if (state == STATE_READ_DATA) {
+        /* upstream vconnection signals some more data ready to be read
+           let's try to transform some more data */
+        handle_transform(contp);
+      } else if (state == STATE_DUMP_PSI) {
+        /* The thread scheduled an event on our continuation to let us
+           know it has completed its job
+           Let's dump the include content to the output vconnection */
+        dump_psi(contp);
+        wake_up_streams(contp);
+      }
+      break;
+
+    default:
+      TSAssert(!"Unexpected event");
+      break;
+    }
+  }
+
+  TSMutexUnlock(TSContMutexGet(contp));
+  return 1;
+}
+
+/*-------------------------------------------------------------------------
+  trylock_handler
+  Small handler to handle TSMutexLockTry failures
+
+  Input:
+    contp      continuation for the current transaction
+    event      event received
+    data       pointer on optional data
+  Output :
+  Return Value:
+  -------------------------------------------------------------------------*/
+static int
+trylock_handler(TSCont contp, TSEvent event ATS_UNUSED, void *edata ATS_UNUSED)
+{
+  TryLockData *data = TSContDataGet(contp);
+  transform_handler(data->contp, data->event, NULL);
+  TSfree(data);
+  TSContDestroy(contp);
+  return 0;
+}
+
+
+/*-------------------------------------------------------------------------
+  transformable
+  Determine if the current transaction should be transformed or not
+
+  Input:
+    txnp      current transaction
+  Output :
+  Return Value:
+    1  if transformable
+    0  if not
+  -------------------------------------------------------------------------*/
+static int
+transformable(TSHttpTxn txnp)
+{
+  /*  We are only interested in transforming "200 OK" responses
+     with a Content-Type: text/ header and with X-Psi header */
+  TSMBuffer bufp;
+  TSMLoc hdr_loc, field_loc;
+  TSHttpStatus resp_status;
+  const char *value;
+
+  TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+
+  resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+  if (resp_status != TS_HTTP_STATUS_OK) {
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return 0;
+  }
+
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE, -1);
+  if (field_loc == TS_NULL_MLOC) {
+    TSError("[transformable] Error while searching Content-Type field");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return 0;
+  }
+
+  value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, -1, NULL);
+  if ((value == NULL) || (strncasecmp(value, "text/", sizeof("text/") - 1) != 0)) {
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return 0;
+  }
+
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, MIME_FIELD_XPSI, -1);
+
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+  return 1;
+}
+
+/*-------------------------------------------------------------------------
+  transform_add
+  Create a transformation and alloc data structure
+
+  Input:
+    txnp      current transaction
+  Output :
+  Return Value:
+    1  if transformation created
+    0  if not
+  -------------------------------------------------------------------------*/
+static int
+transform_add(TSHttpTxn txnp)
+{
+  TSCont contp;
+  ContData *data;
+
+  contp = TSTransformCreate(transform_handler, txnp);
+  data = cont_data_alloc();
+  TSContDataSet(contp, data);
+
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, contp);
+  return 1;
+}
+
+/*-------------------------------------------------------------------------
+  read_response_handler
+  Handler for events related to hook READ_RESPONSE
+
+  Input:
+    contp      continuation for the current transaction
+    event      event received
+    data       pointer on eventual data
+  Output :
+  Return Value:
+  -------------------------------------------------------------------------*/
+static int
+read_response_handler(TSCont contp ATS_UNUSED, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    if (transformable(txnp)) {
+      TSDebug(DBG_TAG, "Add a transformation");
+      transform_add(txnp);
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  default:
+    break;
+  }
+
+  return 0;
+}
+
+
+/*-------------------------------------------------------------------------
+  TSPluginInit
+  Function called at plugin init time
+
+  Input:
+    argc  number of args
+    argv  list vof args
+  Output :
+  Return Value:
+  -------------------------------------------------------------------------*/
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+  int i;
+  TSReturnCode retval;
+
+  info.plugin_name = "psi";
+  info.vendor_name = "Apache";
+  info.support_email = "";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.\n");
+  }
+
+  /* Initialize the psi directory = <plugin_path>/include */
+  sprintf(psi_directory, "%s/%s", TSPluginDirGet(), PSI_PATH);
+
+  /* create an TSTextLogObject to log any psi include */
+  retval = TSTextLogObjectCreate("psi", TS_LOG_MODE_ADD_TIMESTAMP, &log);
+  if (retval == TS_ERROR) {
+    TSError("Failed creating log for psi plugin");
+    log = NULL;
+  }
+
+  /* Create working threads */
+  thread_init();
+  init_queue(&job_queue);
+
+  for (i = 0; i < NB_THREADS; i++) {
+    char *thread_name = (char *) TSmalloc(64);
+    sprintf(thread_name, "Thread[%d]", i);
+    if (!TSThreadCreate((TSThreadFunc) thread_loop, thread_name)) {
+      TSError("[TSPluginInit] Error while creating threads");
+      return;
+    }
+  }
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(read_response_handler, TSMutexCreate()));
+  TSDebug(DBG_TAG, "Plugin started");
+}
diff --git a/example/thread-pool/test/SDKTest/SDKtest_server.config b/example/thread-pool/test/SDKTest/SDKtest_server.config
new file mode 100644
index 00000000..50c02269
--- /dev/null
+++ b/example/thread-pool/test/SDKTest/SDKtest_server.config
@@ -0,0 +1,15 @@
+        # SDKtest_client configuration file
+        #
+		#
+	# If you provide plugin for SDKtest_server, specify the name of
+	# the plugin file in 'plugin' option. And put the .so file for
+        # the plugin under the same directory as SDKtest_server.config
+        #	(plugin = hello_world.so)
+
+# load the psi plugin
+plugin = psi_server.so
+
+# ratio of responses with a X-Psi header and an include tag in the body
+psi_ratio = 10 
+
+
diff --git a/example/thread-pool/test/SDKTest/psi_server.c b/example/thread-pool/test/SDKTest/psi_server.c
new file mode 100644
index 00000000..e2b06d6c
--- /dev/null
+++ b/example/thread-pool/test/SDKTest/psi_server.c
@@ -0,0 +1,195 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* SimSynthServerCache.c
+ *
+ *
+ * Description:
+ *   Simulate server response that contains:
+ *      - PSI header
+ *      - PSI include in body
+ *
+ *   Ratio for generating PSI response is specifid in config file.
+ *
+ * Added Options in Synth_server.config -
+ *     psi_ratio : percentage of response with psi embedded we want to generate
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "ServerAPI.h"
+
+#define PSI_TAG_FORMAT  "<!--include=file%d.txt-->"
+#define PSI_TAG_MAX_SIZE 128
+#define PSI_MIME_HEADER "X-Psi: true"
+
+#define MAX_HEADER_RESPONSE 256
+#define TRUE 1
+#define FALSE 0
+
+typedef struct
+{
+  int status_code;
+  long request_length;
+  long bytes_not_sent;
+  char header_response[MAX_HEADER_RESPONSE];
+  int done_sent_header;         /* flag to see if header has been sent or not */
+  int psi;
+} RequestInfo;
+
+typedef struct
+{
+  double psi_ratio;             /* for psi_ratio */
+} SCPlugin;
+
+SCPlugin my_plugin;
+
+/* generate a random number to see if the document should include psi or not */
+int
+generate_psibility()
+{
+  double rand;
+  rand = drand48();
+  if (rand < my_plugin.psi_ratio) {
+    return TRUE;
+  } else {
+    return FALSE;
+  }
+}
+
+
+void
+TSOptionsProcess(char *option, char *value)
+{
+  if (strcmp(option, "psi_ratio") == 0) {
+    fprintf(stderr, "psi ratio set to %d %%\n", atoi(value));
+    my_plugin.psi_ratio = (double) (atoi(value)) / 100.0;
+  }
+}
+
+
+void
+TSPluginInit()
+{
+  fprintf(stderr, "*** PSI Server ***\n");
+  TSFuncRegister(TS_FID_OPTIONS_PROCESS);
+  TSFuncRegister(TS_FID_RESPONSE_PREPARE);
+  TSFuncRegister(TS_FID_RESPONSE_PUT);
+}
+
+/* prepare response header for a request */
+int
+TSResponsePrepare(char *req_hdr, int req_len, void **response_id)
+{
+  char *len_string;
+  RequestInfo *resp_id = (RequestInfo *) malloc(sizeof(RequestInfo));
+
+  resp_id->psi = generate_psibility();
+
+  resp_id->done_sent_header = FALSE;
+  if ((len_string = strstr(req_hdr, "length"))) {
+    len_string += strlen("length");
+    resp_id->request_length = atoi(len_string);
+    resp_id->bytes_not_sent = resp_id->request_length;
+    resp_id->status_code = 200;
+
+    if (resp_id->psi) {
+      sprintf(resp_id->header_response, "%s\r\n%s\r\n%s%ld\r\n%s\r\n\r\n",
+              "HTTP/1.0 200 OK",
+              "Content-type: text/plain", "Content-length: ", resp_id->request_length, PSI_MIME_HEADER);
+    } else {
+      sprintf(resp_id->header_response, "%s\r\n%s\r\n%s%ld\r\n\r\n",
+              "HTTP/1.0 200 OK", "Content-type: text/plain", "Content-length: ", resp_id->request_length);
+    }
+  } else {
+    resp_id->request_length = -1;
+    resp_id->status_code = 404;
+    resp_id->bytes_not_sent = 0;
+    sprintf(resp_id->header_response, "%s\r\n%s\r\n\r\n", "HTTP/1.0 404 Not Found", "Content-type: text/plain");
+  }
+  *response_id = resp_id;
+  return TRUE;
+}
+
+/* put response (response header + response document) into buffer */
+void
+TSResponsePut(void **resp_id /* return */ ,
+               void *resp_buffer /* return */ ,
+               int *resp_bytes /* return */ ,
+               int resp_buffer_size, int bytes_last_response)
+{
+  int i = 0;
+  RequestInfo *rid = *((RequestInfo **) resp_id);
+  int psi = 0;
+  int len;
+  char psi_tag[PSI_TAG_MAX_SIZE];
+
+  /* copy the header into the response buffer */
+  if (!rid->done_sent_header) {
+    i = sprintf((char *) resp_buffer, "%s", rid->header_response);
+    rid->done_sent_header = TRUE;
+  }
+
+  /* copy the content into the response buffer      */
+  /* for a psi response, it will look like:         */
+  /*    XXX...XXX<!--include=fileN.txt-->XXX...XXXE   */
+  /* with 0<= N <= 99                               */
+  /*                                                */
+  /* for non psi response, it will looke like:      */
+  /*   XXX...XXXE                                    */
+
+  if (rid->status_code == 200) {
+    /* buffer is not large enough to handle all content */
+    if (rid->bytes_not_sent + i > resp_buffer_size) {
+      memset((void *) ((char *) resp_buffer + i), 'X', resp_buffer_size - i);
+      *resp_bytes = resp_buffer_size;
+      rid->bytes_not_sent -= (resp_buffer_size - i);
+    }
+    /* buffer is large enough to handle it in one shot */
+    else {
+      if (rid->psi) {
+        /* generate our psi tag: <!--include=fileN.txt--> */
+        len = sprintf(psi_tag, PSI_TAG_FORMAT, rand() % 100);
+
+        /* hopefully enough space for our include command */
+        if (rid->bytes_not_sent >= len) {
+          memcpy((void *) ((char *) resp_buffer + i), psi_tag, len);
+          rid->bytes_not_sent -= len;
+          i += len;
+        }
+      }
+      memset((void *) ((char *) resp_buffer + i), 'X', rid->bytes_not_sent);
+      memset((void *) ((char *) resp_buffer + i + rid->bytes_not_sent - 1), 'E', 1);
+      *resp_bytes = rid->bytes_not_sent + i;
+      rid->bytes_not_sent = 0;
+
+    }
+  }
+  /* return NULL as the resp_id to indicate
+   * if it is the last TSResponsePut call */
+  if (rid->bytes_not_sent <= 0 || rid->status_code != 200) {
+    free(rid);
+    *((RequestInfo **) resp_id) = NULL;
+  }
+}
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/1.cfg b/example/thread-pool/test/SynTest/Tests/Psi/1.cfg
new file mode 100644
index 00000000..c7fbe3bb
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/1.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - Include tag at the beginning of doc 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc1_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/10.cfg b/example/thread-pool/test/SynTest/Tests/Psi/10.cfg
new file mode 100644
index 00000000..15475969
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/10.cfg
@@ -0,0 +1,51 @@
+[test]
+Description: PSI Plugin - Boundary case: huge file to include 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc10_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+# huge file. do not print body
+print-body: false 
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/11.cfg b/example/thread-pool/test/SynTest/Tests/Psi/11.cfg
new file mode 100644
index 00000000..b839b1f3
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/11.cfg
@@ -0,0 +1,49 @@
+[test]
+Description: PSI Plugin - Boundary case: no X-Psi header 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+content-file: ./Tests/Psi/psi_files/tc11_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/12.cfg b/example/thread-pool/test/SynTest/Tests/Psi/12.cfg
new file mode 100644
index 00000000..2f2dc6c0
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/12.cfg
@@ -0,0 +1,45 @@
+[test]
+Description: PSI Plugin - Boundary case: Server Aborts in middle of header
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+socket-response: SendPartialHeaderAndCloseConnection
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc12_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+
+[proxy-response]
+# proxy returns 502 Server Hangup
+Must-have: {
+	Status ==502 
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/13.cfg b/example/thread-pool/test/SynTest/Tests/Psi/13.cfg
new file mode 100644
index 00000000..d5368023
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/13.cfg
@@ -0,0 +1,51 @@
+[test]
+Description: PSI Plugin - Boundary case: Server Aborts in middle of body 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+socket-response: SendPartialBodyAndCloseConnection
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc13_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/2.cfg b/example/thread-pool/test/SynTest/Tests/Psi/2.cfg
new file mode 100644
index 00000000..5e58fbe5
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/2.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - include tag middle of body doc 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc2_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/3.cfg b/example/thread-pool/test/SynTest/Tests/Psi/3.cfg
new file mode 100644
index 00000000..46d49f6d
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/3.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - include tag end of body doc 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc3_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/4.cfg b/example/thread-pool/test/SynTest/Tests/Psi/4.cfg
new file mode 100644
index 00000000..5db8ab00
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/4.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - 2 include tags in the same body 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc4_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/5.cfg b/example/thread-pool/test/SynTest/Tests/Psi/5.cfg
new file mode 100644
index 00000000..9092b7dc
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/5.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - Boundary case: no filename in include 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc5_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/6.cfg b/example/thread-pool/test/SynTest/Tests/Psi/6.cfg
new file mode 100644
index 00000000..68108562
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/6.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - Boundary case: include tag doesn't end 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc6_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/7.cfg b/example/thread-pool/test/SynTest/Tests/Psi/7.cfg
new file mode 100644
index 00000000..fc2bf253
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/7.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - Boundary case: include file doesn't exist 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc7_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/8.cfg b/example/thread-pool/test/SynTest/Tests/Psi/8.cfg
new file mode 100644
index 00000000..8c18a34f
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/8.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - Boundary case: tag similar to include but slightly different 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc8_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/9.cfg b/example/thread-pool/test/SynTest/Tests/Psi/9.cfg
new file mode 100644
index 00000000..af67d2a5
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/9.cfg
@@ -0,0 +1,50 @@
+[test]
+Description: PSI Plugin - Boundary case: include file is empty 
+
+### request
+
+[client-request]
+request: {
+	GET http://$(SVR_HOST):$(SVR_PORT)/ http/1.0
+	Host: http://$(SVR_HOST):$(SVR_PORT)/
+	User-Agent: HTTP Protocol Tester Client 1.0
+	Content-Length: 0
+}
+
+### response
+
+[server-response]
+http-response: {
+	HTTP/1.1 200 OK
+	Date: +0
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+	X-Psi: true
+}
+content-file: ./Tests/Psi/psi_files/tc9_file.txt
+
+### verification
+[output]
+# As syntest can't do this, we need to visually inspect bodies... :-(
+print-headers: false
+print-body: true
+
+[proxy-request]
+verify-header-valid: true
+
+[server-response]
+Must-have: {
+	Status == 200
+	Version == HTTP/1.1
+}
+verify-header-valid: true
+
+[proxy-response]
+Must-have: {
+	Status == 200
+	Server: HTTP Protocol Tester 1.0
+	Content-Type: text/html
+}
+verify-header-valid: true
+
+
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc10_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc10_file.txt
new file mode 100644
index 00000000..32e161ae
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc10_file.txt
@@ -0,0 +1,3 @@
+include a big file.
+<!--include=incfile2.txt-->
+include should be up there.
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc11_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc11_file.txt
new file mode 100644
index 00000000..1522b5b0
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc11_file.txt
@@ -0,0 +1,2 @@
+This body should not be transformed.
+include should still be between bars |<!--include=incfile1.txt-->| is it ok ?
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc12_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc12_file.txt
new file mode 100644
index 00000000..8afd2a75
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc12_file.txt
@@ -0,0 +1,3 @@
+Server should abort before body is sent
+<!--include=incfile1.txt-->
+include should be up there.
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc13_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc13_file.txt
new file mode 100644
index 00000000..b5b4f2d9
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc13_file.txt
@@ -0,0 +1,3 @@
+Server should abort in middle of body 
+<!--include=incfile1.txt-->
+include should be up there.
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc1_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc1_file.txt
new file mode 100644
index 00000000..e0ed8883
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc1_file.txt
@@ -0,0 +1,2 @@
+<!--include=incfile1.txt-->
+include should be up there.
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc2_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc2_file.txt
new file mode 100644
index 00000000..f5cbe003
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc2_file.txt
@@ -0,0 +1 @@
+include should be between bars |<!--include=incfile1.txt-->| is it ok ?
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc3_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc3_file.txt
new file mode 100644
index 00000000..02443f76
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc3_file.txt
@@ -0,0 +1,2 @@
+include should be down there:
+<!--include=incfile1.txt-->
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc4_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc4_file.txt
new file mode 100644
index 00000000..8541e059
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc4_file.txt
@@ -0,0 +1,5 @@
+2 includes in the body. One starting down there:
+<!--include=incfile1.txt-->
+One other down there:
+<!--include=incfile1.txt-->
+that's all folks !
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc5_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc5_file.txt
new file mode 100644
index 00000000..54a5e5fe
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc5_file.txt
@@ -0,0 +1,3 @@
+this is a doc with an include that has no filename
+<!--include==-->
+should remove the tag and include nothing
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc6_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc6_file.txt
new file mode 100644
index 00000000..da41686d
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc6_file.txt
@@ -0,0 +1 @@
+should keep the uncomplete tag and include nothing<!--incl
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc7_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc7_file.txt
new file mode 100644
index 00000000..4b203329
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc7_file.txt
@@ -0,0 +1,3 @@
+include tag with a file that does not exist.this is a doc with a partial begin for include tag
+<!--include=non_existing_file.txt-->
+should remove the tag and include nothing
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc8_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc8_file.txt
new file mode 100644
index 00000000..d4002230
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc8_file.txt
@@ -0,0 +1,3 @@
+tag similar to include but slightly different.
+<!--script=incfile1.txt-->
+should not remove the tag and include nothing
diff --git a/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc9_file.txt b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc9_file.txt
new file mode 100644
index 00000000..d7a9a33a
--- /dev/null
+++ b/example/thread-pool/test/SynTest/Tests/Psi/psi_files/tc9_file.txt
@@ -0,0 +1,2 @@
+include an empty file: should be no chars betwwen bars: |<!--include=incfile0.txt-->|
+OK ?
diff --git a/example/thread-pool/test/SynTest/system.cfg b/example/thread-pool/test/SynTest/system.cfg
new file mode 100644
index 00000000..4488828e
--- /dev/null
+++ b/example/thread-pool/test/SynTest/system.cfg
@@ -0,0 +1,44 @@
+# system.cfg
+#
+# This file consists of key-value pairs in MIME format. Keys must be unique
+# otherwise the last value seen is what's stored.
+# 
+# Comments start with '#'s and whitespace is ignored.
+#
+# "on" and "off" are reserved words. The corresponding keys are treated
+# as test group names.
+
+$SVR_HOST = cachedev.example.com
+$SVR_PORT = 1973 
+
+$PROXY_HOST = cachedev.example.com
+$PROXY_PORT = 8280
+
+$LOG_HOST = cachedev.example.com
+
+
+[config]
+proxy-host: $(PROXY_HOST)
+proxy-port: $(PROXY_PORT)
+server-host: $(SVR_HOST)
+server-port: $(SVR_PORT)
+log-host: $(LOG_HOST)
+log-dir: /export/workareas/franckc/traffic_tomcat/sun_opt/logs 
+# log-format: cqts ttms chi crc/pssc pscl ...
+# log-flush-delay: 15
+
+# System-level output control.
+# These settings can be overridden at the test-group and at the test levels.
+[output]
+print-headers: true 
+print-body: false
+print-verifications: false 
+print-echo: false
+verbose-mode: false
+
+# Reference to the test-group config file.
+[tests]
+#file: ims_tests.cfg
+#file: test_f.cfg
+file: tests_psi.cfg
+
diff --git a/example/thread-pool/test/SynTest/tests_psi.cfg b/example/thread-pool/test/SynTest/tests_psi.cfg
new file mode 100644
index 00000000..31a887ef
--- /dev/null
+++ b/example/thread-pool/test/SynTest/tests_psi.cfg
@@ -0,0 +1,61 @@
+# The "test-groups" section is required. It lists the test groups under the
+# "list" header. The test groups listed will each have their own sections.
+#
+
+
+[test-groups]
+list: {
+        Psi
+}
+
+
+
+#define default values for commonly used variables
+#these should be redefined where appropriate in individual tests
+$EXPIRES = 200
+$LM = 0
+$STAMP = $(now)
+
+verbose-mode:false 
+print-headers: false		
+print-body: false 
+print-verifications: true 
+
+
+# Each test group has "run" and "list" fields.
+# The valid values for "run" are "true" and "false".
+# The list blob lists the filenames of the test configuration files.
+#
+
+[Psi]
+run: true			
+list: {
+	generate-resource
+	Tests/Psi/1.cfg
+	generate-resource
+	Tests/Psi/2.cfg
+	generate-resource
+	Tests/Psi/3.cfg
+	generate-resource
+	Tests/Psi/4.cfg
+	generate-resource
+	Tests/Psi/5.cfg
+	generate-resource
+	Tests/Psi/6.cfg
+	generate-resource
+	Tests/Psi/7.cfg
+	generate-resource
+	Tests/Psi/8.cfg
+	generate-resource
+	Tests/Psi/9.cfg
+	generate-resource
+	Tests/Psi/10.cfg
+	generate-resource
+	Tests/Psi/11.cfg
+	generate-resource
+	Tests/Psi/12.cfg
+	generate-resource
+	Tests/Psi/13.cfg
+}
+
+
diff --git a/example/thread-pool/thread.c b/example/thread-pool/thread.c
new file mode 100644
index 00000000..9e49002e
--- /dev/null
+++ b/example/thread-pool/thread.c
@@ -0,0 +1,190 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#include <stdio.h>
+#include <pthread.h>
+#include "ts/ts.h"
+
+#include "thread.h"
+#include "ink_defs.h"
+
+#define DBGTAG  "xthread"
+
+struct timespec tp1;
+struct timespec tp2;
+
+Queue job_queue;
+
+static pthread_cond_t cond;
+static pthread_mutex_t cond_mutex;
+
+
+void
+init_queue(Queue * q)
+{
+  q->head = NULL;               /* Pointer on head cell */
+  q->tail = NULL;               /* Pointer on tail cell */
+  q->nb_elem = 0;               /* Nb elem in the queue */
+  q->mutex = TSMutexCreate();
+}
+
+void
+add_to_queue(Queue * q, void *data)
+{
+  Cell *new_cell;
+  int n;
+
+  if (data != NULL) {
+    TSMutexLock(q->mutex);
+    /* Init the new cell */
+    new_cell = TSmalloc(sizeof(Cell));
+    new_cell->magic = MAGIC_ALIVE;
+    new_cell->ptr_data = data;
+    new_cell->ptr_next = q->tail;
+    new_cell->ptr_prev = NULL;
+
+    /* Add this new cell to the queue */
+    if (q->tail == NULL) {
+      TSAssert(q->head == NULL);
+      TSAssert(q->nb_elem == 0);
+      q->tail = new_cell;
+      q->head = new_cell;
+    } else {
+      TSAssert(q->tail->magic == MAGIC_ALIVE);
+      q->tail->ptr_prev = new_cell;
+      q->tail = new_cell;
+    }
+    n = q->nb_elem++;
+    TSMutexUnlock(q->mutex);
+
+    if (n > MAX_JOBS_ALARM) {
+      TSError("Warning:Too many jobs in plugin thread pool queue (%d). Maximum allowed is %d", n, MAX_JOBS_ALARM);
+    }
+  }
+}
+
+void *
+remove_from_queue(Queue * q)
+{
+  void *data = NULL;
+  Cell *remove_cell;
+
+  TSMutexLock(q->mutex);
+  if (q->nb_elem > 0) {
+
+    remove_cell = q->head;
+    TSAssert(remove_cell->magic == MAGIC_ALIVE);
+
+    data = remove_cell->ptr_data;
+    q->head = remove_cell->ptr_prev;
+    if (q->head == NULL) {
+      TSAssert(q->nb_elem == 1);
+      q->tail = NULL;
+    } else {
+      TSAssert(q->head->magic == MAGIC_ALIVE);
+      q->head->ptr_next = NULL;
+    }
+
+    remove_cell->magic = MAGIC_DEAD;
+    TSfree(remove_cell);
+    q->nb_elem--;
+
+  }
+  TSMutexUnlock(q->mutex);
+  return data;
+}
+
+int
+get_nbelem_queue(Queue * q)
+{
+  int nb;
+  TSMutexLock(q->mutex);
+  nb = q->nb_elem;
+  TSMutexUnlock(q->mutex);
+
+  return nb;
+}
+
+Job *
+job_create(TSCont contp, ExecFunc func, void *data)
+{
+  Job *new_job;
+
+  new_job = TSmalloc(sizeof(Job));
+  new_job->magic = MAGIC_ALIVE;
+  new_job->cont = contp;
+  new_job->func = func;
+  new_job->data = data;
+  return new_job;
+}
+
+void
+job_delete(Job * job)
+{
+  job->magic = MAGIC_DEAD;
+  TSfree(job);
+}
+
+void
+thread_signal_job()
+{
+  pthread_mutex_lock(&cond_mutex);
+  pthread_cond_broadcast(&cond);
+  pthread_mutex_unlock(&cond_mutex);
+}
+
+void
+thread_init()
+{
+  pthread_cond_init(&cond, NULL);
+}
+
+void
+thread_loop(void *arg ATS_UNUSED)
+{
+  Job *job_todo;
+
+  /* Infinite loop */
+  for (;;) {
+    /* returns a job or NULL if no jobs to do */
+    job_todo = remove_from_queue(&job_queue);
+
+    if (job_todo != NULL) {
+      TSAssert(job_todo->magic == MAGIC_ALIVE);
+
+      /* Simply execute the job function */
+      job_todo->func(job_todo->cont, job_todo->data);
+
+      /* Destroy this job */
+      job_delete(job_todo);
+    } else {
+      /* Sleep until we get awake (probably some work to do) */
+      pthread_mutex_lock(&cond_mutex);
+      pthread_cond_wait(&cond, &cond_mutex);
+      pthread_mutex_unlock(&cond_mutex);
+    }
+  }
+}
+
diff --git a/example/thread-pool/thread.h b/example/thread-pool/thread.h
new file mode 100644
index 00000000..b6f59005
--- /dev/null
+++ b/example/thread-pool/thread.h
@@ -0,0 +1,89 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef _THREAD_H_
+#define _THREAD_H_
+
+#define MAGIC_ALIVE 0xfeedbabe
+#define MAGIC_DEAD  0xdeadbeef
+
+/* If more than MAX_JOBS_ALARM are present in queue, the plugin
+   will log error messages. This should be tuned based on your application */
+#define MAX_JOBS_ALARM 1000
+
+typedef int (*ExecFunc) (TSCont, void *);
+
+/* Structure that contains all information for a job execution */
+typedef struct
+{
+  unsigned int magic;
+  TSCont cont;                 /* Continuation to call once job is done */
+  ExecFunc func;                /* Job function */
+  void *data;                   /* Any data to pass to the job function */
+} Job;
+
+/* Implementation of the queue for jobs */
+struct cell_rec
+{
+  unsigned int magic;
+  void *ptr_data;
+  struct cell_rec *ptr_next;
+  struct cell_rec *ptr_prev;
+};
+typedef struct cell_rec Cell;
+
+typedef struct
+{
+  Cell *head;
+  Cell *tail;
+  int nb_elem;
+  TSMutex mutex;
+} Queue;
+
+
+/* queue manipulation functions */
+void init_queue(Queue * q);
+
+void add_to_queue(Queue * q, void *data);
+
+void *remove_from_queue(Queue * q);
+
+int get_nbelem_queue(Queue * q);
+
+
+/* Job functions */
+Job *job_create(TSCont contp, ExecFunc func, void *data);
+
+void job_delete(Job * job);
+
+
+/* thread functions */
+void thread_signal_job();
+
+void thread_init();
+
+void thread_loop(void *arg);
+
+#endif
diff --git a/example/version/version.c b/example/version/version.c
new file mode 100644
index 00000000..55128583
--- /dev/null
+++ b/example/version/version.c
@@ -0,0 +1,67 @@
+/** @file
+
+  an example plugin showing off how to use versioning
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+void
+TSPluginInit(int argc ATS_UNUSED, const char *argv[] ATS_UNUSED)
+{
+  TSPluginRegistrationInfo info;
+
+  // Get the version:
+  const char *ts_version = TSTrafficServerVersionGet();
+
+  if (!ts_version) {
+    TSError("Can't get Traffic Server verion.\n");
+    return;
+  }
+
+  // Split it in major, minor, patch:
+  int major_ts_version = 0;
+  int minor_ts_version = 0;
+  int patch_ts_version = 0;
+
+  if (sscanf(ts_version, "%d.%d.%d", &major_ts_version, &minor_ts_version, &patch_ts_version) != 3) {
+    TSError("Can't extract verions.\n");
+    return;
+  }
+
+  info.plugin_name = "version-plugin";
+  info.vendor_name = "MyCompany";
+  info.support_email = "ts-api-support@MyCompany.com";
+
+  // partial compilation
+#if (TS_VERSION_NUMBER < 3000000)
+  if (TSPluginRegister(TS_SDK_VERSION_2_0, &info) != TS_SUCCESS) {
+#else 
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+#endif
+    TSError("Plugin registration failed. \n");
+  }
+
+  TSDebug("debug-version-plugin", "Running in Apache Traffic Server: v%d.%d.%d\n", major_ts_version, minor_ts_version, patch_ts_version);
+}
+
diff --git a/iocore/Makefile.am b/iocore/Makefile.am
new file mode 100644
index 00000000..cb597b61
--- /dev/null
+++ b/iocore/Makefile.am
@@ -0,0 +1,19 @@
+# Makefile.am for traffic/iocore
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = eventsystem net aio dns hostdb utils cache cluster
diff --git a/iocore/Makefile.in b/iocore/Makefile.in
new file mode 100644
index 00000000..139361d8
--- /dev/null
+++ b/iocore/Makefile.in
@@ -0,0 +1,867 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for traffic/iocore
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
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+	  if test -f "$$i"; then \
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+
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+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+	fi
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
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diff --git a/iocore/aio/AIO.cc b/iocore/aio/AIO.cc
new file mode 100644
index 00000000..6a9c041f
--- /dev/null
+++ b/iocore/aio/AIO.cc
@@ -0,0 +1,671 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Async Disk IO operations.
+ */
+
+#include "P_AIO.h"
+
+#if AIO_MODE == AIO_MODE_NATIVE
+#define AIO_PERIOD                                -HRTIME_MSECONDS(4)
+#else
+
+#define MAX_DISKS_POSSIBLE 100
+
+// globals
+
+int ts_config_with_inkdiskio = 0;
+/* structure to hold information about each file descriptor */
+AIO_Reqs *aio_reqs[MAX_DISKS_POSSIBLE];
+/* number of unique file descriptors in the aio_reqs array */
+volatile int num_filedes = 1;
+
+// acquire this mutex before inserting a new entry in the aio_reqs array.
+// Don't need to acquire this for searching the array
+static ink_mutex insert_mutex;
+
+int thread_is_created = 0;
+#endif // AIO_MODE == AIO_MODE_NATIVE
+RecInt cache_config_threads_per_disk = 12;
+RecInt api_config_threads_per_disk = 12;
+
+RecRawStatBlock *aio_rsb = NULL;
+Continuation *aio_err_callbck = 0;
+// AIO Stats
+uint64_t aio_num_read = 0;
+uint64_t aio_bytes_read = 0;
+uint64_t aio_num_write = 0;
+uint64_t aio_bytes_written = 0;
+
+/*
+ * Stats
+ */
+
+static int
+aio_stats_cb(const char * /* name ATS_UNUSED */, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  (void) data_type;
+  (void) rsb;
+  int64_t new_val = 0;
+  int64_t diff = 0;
+  int64_t count, sum;
+  ink_hrtime now = ink_get_hrtime();
+  // The RecGetGlobalXXX stat functions are cheaper than the
+  // RecGetXXX functions. The Global ones are expensive
+  // for increments and decrements. But for AIO stats we
+  // only do Sets and Gets, so they are cheaper in our case.
+  RecGetGlobalRawStatSum(aio_rsb, id, &sum);
+  RecGetGlobalRawStatCount(aio_rsb, id, &count);
+
+  int64_t time_diff = ink_hrtime_to_msec(now - count);
+  if (time_diff == 0) {
+    data->rec_float = 0.0;
+    return 0;
+  }
+  switch (id) {
+  case AIO_STAT_READ_PER_SEC:
+    new_val = aio_num_read;
+    break;
+  case AIO_STAT_WRITE_PER_SEC:
+    new_val = aio_num_write;
+    break;
+  case AIO_STAT_KB_READ_PER_SEC:
+    new_val = aio_bytes_read >> 10;
+    break;
+  case AIO_STAT_KB_WRITE_PER_SEC:
+    new_val = aio_bytes_written >> 10;
+    break;
+  default:
+    ink_assert(0);
+  }
+  diff = new_val - sum;
+  RecSetGlobalRawStatSum(aio_rsb, id, new_val);
+  RecSetGlobalRawStatCount(aio_rsb, id, now);
+  data->rec_float = (float) diff *1000.00 / (float) time_diff;
+  return 0;
+}
+
+
+#ifdef AIO_STATS
+/* total number of requests received - for debugging */
+static int num_requests = 0;
+/* performance results */
+static AIOTestData *data;
+
+int
+AIOTestData::ink_aio_stats(int event, void *d)
+{
+  ink_hrtime now = ink_get_hrtime();
+  double time_msec = (double) (now - start) / (double) HRTIME_MSECOND;
+  int i = (aio_reqs[0] == NULL)? 1 : 0;
+  for (; i < num_filedes; ++i)
+    printf("%0.2f\t%i\t%i\t%i\n", time_msec, aio_reqs[i]->filedes, aio_reqs[i]->pending, aio_reqs[i]->queued);
+  printf("Num Requests: %i Num Queued: %i num Moved: %i\n\n", data->num_req, data->num_queue, data->num_temp);
+  eventProcessor.schedule_in(this, HRTIME_MSECONDS(50), ET_CALL);
+  return EVENT_DONE;
+}
+
+#endif // AIO_STATS
+
+/*
+ * Common
+ */
+AIOCallback *
+new_AIOCallback(void)
+{
+  return new AIOCallbackInternal;
+}
+
+void
+ink_aio_set_callback(Continuation *callback)
+{
+  aio_err_callbck = callback;
+}
+
+void
+ink_aio_init(ModuleVersion v)
+{
+  ink_release_assert(!checkModuleVersion(v, AIO_MODULE_VERSION));
+
+  aio_rsb = RecAllocateRawStatBlock((int) AIO_STAT_COUNT);
+  RecRegisterRawStat(aio_rsb, RECT_PROCESS, "proxy.process.cache.read_per_sec",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) AIO_STAT_READ_PER_SEC, aio_stats_cb);
+  RecRegisterRawStat(aio_rsb, RECT_PROCESS, "proxy.process.cache.write_per_sec",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) AIO_STAT_WRITE_PER_SEC, aio_stats_cb);
+  RecRegisterRawStat(aio_rsb, RECT_PROCESS,
+                     "proxy.process.cache.KB_read_per_sec",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) AIO_STAT_KB_READ_PER_SEC, aio_stats_cb);
+  RecRegisterRawStat(aio_rsb, RECT_PROCESS,
+                     "proxy.process.cache.KB_write_per_sec",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) AIO_STAT_KB_WRITE_PER_SEC, aio_stats_cb);
+#if AIO_MODE != AIO_MODE_NATIVE
+  memset(&aio_reqs, 0, MAX_DISKS_POSSIBLE * sizeof(AIO_Reqs *));
+  ink_mutex_init(&insert_mutex, NULL);
+#endif
+  REC_ReadConfigInteger(cache_config_threads_per_disk, "proxy.config.cache.threads_per_disk");
+}
+
+int
+ink_aio_start()
+{
+#ifdef AIO_STATS
+  data = new AIOTestData();
+  eventProcessor.schedule_in(data, HRTIME_MSECONDS(100), ET_CALL);
+#endif
+  return 0;
+}
+
+#if  AIO_MODE != AIO_MODE_NATIVE
+
+static void *aio_thread_main(void *arg);
+
+struct AIOThreadInfo:public Continuation
+{
+
+  AIO_Reqs *req;
+  int sleep_wait;
+
+  int start(int event, Event *e)
+  {
+    (void) event;
+    (void) e;
+    aio_thread_main(this);
+    return EVENT_DONE;
+  }
+
+  AIOThreadInfo(AIO_Reqs *thr_req, int sleep):Continuation(new_ProxyMutex()), req(thr_req), sleep_wait(sleep)
+  {
+    SET_HANDLER(&AIOThreadInfo::start);
+  }
+
+};
+
+/* priority scheduling */
+/* Have 2 queues per file descriptor - A queue for http requests and another
+   for non-http (streaming) request. Each file descriptor has a lock
+   and condition variable associated with it. A dedicated number of threads
+   (THREADS_PER_DISK) wait on the condition variable associated with the
+   file descriptor. The cache threads try to put the request in the
+   appropriate queue. If they fail to acquire the lock, they put the
+   request in the atomic list. Requests are served in the order of
+   highest priority first. If both the queues are empty, the aio threads
+   check if there is any request on the other disks */
+
+
+/* insert  an entry for file descriptor fildes into aio_reqs */
+static AIO_Reqs *
+aio_init_fildes(int fildes, int fromAPI = 0)
+{
+  char thr_name[MAX_THREAD_NAME_LENGTH];
+  int i;
+  AIO_Reqs *request = (AIO_Reqs *)ats_malloc(sizeof(AIO_Reqs));
+
+  memset(request, 0, sizeof(AIO_Reqs));
+
+  INK_WRITE_MEMORY_BARRIER;
+
+  ink_cond_init(&request->aio_cond);
+  ink_mutex_init(&request->aio_mutex, NULL);
+  ink_atomiclist_init(&request->aio_temp_list, "temp_list", (uintptr_t) &((AIOCallback *) 0)->link);
+
+  RecInt thread_num;
+
+  if (fromAPI) {
+    request->index = 0;
+    request->filedes = -1;
+    aio_reqs[0] = request;
+    thread_is_created = 1;
+    thread_num = api_config_threads_per_disk;
+  } else {
+    request->index = num_filedes;
+    request->filedes = fildes;
+    aio_reqs[num_filedes] = request;
+    thread_num = cache_config_threads_per_disk;
+  }
+
+  /* create the main thread */
+  AIOThreadInfo *thr_info;
+  size_t stacksize;
+
+  REC_ReadConfigInteger(stacksize, "proxy.config.thread.default.stacksize");
+  for (i = 0; i < thread_num; i++) {
+    if (i == (thread_num - 1))
+      thr_info = new AIOThreadInfo(request, 1);
+    else
+      thr_info = new AIOThreadInfo(request, 0);
+    snprintf(thr_name, MAX_THREAD_NAME_LENGTH, "[ET_AIO %d:%d]", i, fildes);
+    ink_assert(eventProcessor.spawn_thread(thr_info, thr_name, stacksize));
+  }
+
+  /* the num_filedes should be incremented after initializing everything.
+     This prevents a thread from looking at uninitialized fields */
+  if (!fromAPI) {
+    num_filedes++;
+  }
+  return request;
+}
+
+/* insert a request into either aio_todo or http_todo queue. aio_todo
+   list is kept sorted */
+static void
+aio_insert(AIOCallback *op, AIO_Reqs *req)
+{
+#ifdef AIO_STATS
+  num_requests++;
+  req->queued++;
+#endif
+  if (op->aiocb.aio_reqprio == AIO_LOWEST_PRIORITY)     // http request
+  {
+    AIOCallback *cb = (AIOCallback *) req->http_aio_todo.tail;
+    if (!cb)
+      req->http_aio_todo.push(op);
+    else
+      req->http_aio_todo.insert(op, cb);
+  } else {
+
+    AIOCallback *cb = (AIOCallback *) req->aio_todo.tail;
+
+    for (; cb; cb = (AIOCallback *) cb->link.prev) {
+      if (cb->aiocb.aio_reqprio >= op->aiocb.aio_reqprio) {
+        req->aio_todo.insert(op, cb);
+        return;
+      }
+    }
+
+    /* Either the queue was empty or this request has the highest priority */
+    req->aio_todo.push(op);
+  }
+}
+
+/* move the request from the atomic list to the queue */
+static void
+aio_move(AIO_Reqs *req)
+{
+  AIOCallback *next = NULL, *prev = NULL, *cb = (AIOCallback *) ink_atomiclist_popall(&req->aio_temp_list);
+  /* flip the list */
+  if (!cb)
+    return;
+  while (cb->link.next) {
+    next = (AIOCallback *) cb->link.next;
+    cb->link.next = prev;
+    prev = cb;
+    cb = next;
+  }
+  /* fix the last pointer */
+  cb->link.next = prev;
+  for (; cb; cb = next) {
+    next = (AIOCallback *) cb->link.next;
+    cb->link.next = NULL;
+    cb->link.prev = NULL;
+    aio_insert(cb, req);
+  }
+}
+
+/* queue the new request */
+static void
+aio_queue_req(AIOCallbackInternal *op, int fromAPI = 0)
+{
+  int thread_ndx = 1;
+  AIO_Reqs *req = op->aio_req;
+  op->link.next = NULL;;
+  op->link.prev = NULL;
+#ifdef AIO_STATS
+  ink_atomic_increment((int *) &data->num_req, 1);
+#endif
+  if (!fromAPI && (!req || req->filedes != op->aiocb.aio_fildes)) {
+    /* search for the matching file descriptor */
+    for (; thread_ndx < num_filedes; thread_ndx++) {
+      if (aio_reqs[thread_ndx]->filedes == op->aiocb.aio_fildes) {
+        /* found the matching file descriptor */
+        req = aio_reqs[thread_ndx];
+        break;
+      }
+    }
+    if (!req) {
+      ink_mutex_acquire(&insert_mutex);
+      if (thread_ndx == num_filedes) {
+        /* insert a new entry */
+        req = aio_init_fildes(op->aiocb.aio_fildes);
+      } else {
+        /* a new entry was inserted between the time we checked the
+           aio_reqs and acquired the mutex. check the aio_reqs array to
+           make sure the entry inserted does not correspond  to the current
+           file descriptor */
+        for (thread_ndx = 1; thread_ndx < num_filedes; thread_ndx++) {
+          if (aio_reqs[thread_ndx]->filedes == op->aiocb.aio_fildes) {
+            req = aio_reqs[thread_ndx];
+            break;
+          }
+        }
+        if (!req)
+          req = aio_init_fildes(op->aiocb.aio_fildes);
+      }
+      ink_mutex_release(&insert_mutex);
+    }
+    op->aio_req = req;
+  }
+  if (fromAPI && (!req || req->filedes != -1)) {
+    ink_mutex_acquire(&insert_mutex);
+    if (aio_reqs[0] == NULL) {
+      req = aio_init_fildes(-1, 1);
+    } else {
+      req = aio_reqs[0];
+    }
+    ink_mutex_release(&insert_mutex);
+    op->aio_req = req;
+  }
+  ink_atomic_increment(&req->requests_queued, 1);
+  if (!ink_mutex_try_acquire(&req->aio_mutex)) {
+#ifdef AIO_STATS
+    ink_atomic_increment(&data->num_temp, 1);
+#endif
+    ink_atomiclist_push(&req->aio_temp_list, op);
+  } else {
+    /* check if any pending requests on the atomic list */
+#ifdef AIO_STATS
+    ink_atomic_increment(&data->num_queue, 1);
+#endif
+    if (!INK_ATOMICLIST_EMPTY(req->aio_temp_list))
+      aio_move(req);
+    /* now put the new request */
+    aio_insert(op, req);
+    ink_cond_signal(&req->aio_cond);
+    ink_mutex_release(&req->aio_mutex);
+  }
+}
+
+static inline int
+cache_op(AIOCallbackInternal *op)
+{
+  bool read = (op->aiocb.aio_lio_opcode == LIO_READ) ? 1 : 0;
+  for (; op; op = (AIOCallbackInternal *) op->then) {
+    ink_aiocb_t *a = &op->aiocb;
+    ssize_t err, res = 0;
+
+    while (a->aio_nbytes - res > 0) {
+      do {
+        if (read)
+          err = pread(a->aio_fildes, ((char *) a->aio_buf) + res, a->aio_nbytes - res, a->aio_offset + res);
+        else
+          err = pwrite(a->aio_fildes, ((char *) a->aio_buf) + res, a->aio_nbytes - res, a->aio_offset + res);
+      } while ((err < 0) && (errno == EINTR || errno == ENOBUFS || errno == ENOMEM));
+      if (err <= 0) {
+        Warning("cache disk operation failed %s %zd %d\n",
+                (a->aio_lio_opcode == LIO_READ) ? "READ" : "WRITE", err, errno);
+        op->aio_result = -errno;
+        return (err);
+      }
+      res += err;
+    }
+    op->aio_result = res;
+    ink_assert(op->aio_result == (int64_t) a->aio_nbytes);
+  }
+  return 1;
+}
+
+int
+ink_aio_read(AIOCallback *op, int fromAPI)
+{
+  op->aiocb.aio_lio_opcode = LIO_READ;
+
+#if (AIO_MODE == AIO_MODE_AIO)
+  ink_assert(this_ethread() == op->thread);
+  op->thread->aio_ops.enqueue(op);
+  if (aio_read(&op->aiocb) < 0) {
+    Warning("failed aio_read: %s\n", strerror(errno));
+    op->thread->aio_ops.remove(op);
+    return -1;
+  }
+#elif (AIO_MODE == AIO_MODE_SYNC)
+  cache_op((AIOCallbackInternal *) op);
+  op->action.continuation->handleEvent(AIO_EVENT_DONE, op);
+#elif (AIO_MODE == AIO_MODE_THREAD)
+  aio_queue_req((AIOCallbackInternal *) op, fromAPI);
+#endif
+
+  return 1;
+}
+
+int
+ink_aio_write(AIOCallback *op, int fromAPI)
+{
+  op->aiocb.aio_lio_opcode = LIO_WRITE;
+
+#if (AIO_MODE == AIO_MODE_AIO)
+  ink_assert(this_ethread() == op->thread);
+  op->thread->aio_ops.enqueue(op);
+  if (aio_write(&op->aiocb) < 0) {
+    Warning("failed aio_write: %s\n", strerror(errno));
+    op->thread->aio_ops.remove(op);
+    return -1;
+  }
+#elif (AIO_MODE == AIO_MODE_SYNC)
+  cache_op((AIOCallbackInternal *) op);
+  op->action.continuation->handleEvent(AIO_EVENT_DONE, op);
+#elif (AIO_MODE == AIO_MODE_THREAD)
+  aio_queue_req((AIOCallbackInternal *) op, fromAPI);
+#endif
+
+  return 1;
+}
+
+bool
+ink_aio_thread_num_set(int thread_num)
+{
+  if (thread_num > 0 && !thread_is_created) {
+    api_config_threads_per_disk = thread_num;
+    return true;
+  }
+
+  return false;
+}
+
+void *
+aio_thread_main(void *arg)
+{
+  AIOThreadInfo *thr_info = (AIOThreadInfo *) arg;
+  AIO_Reqs *my_aio_req = (AIO_Reqs *) thr_info->req;
+  AIO_Reqs *current_req = NULL;
+  AIOCallback *op = NULL;
+  ink_mutex_acquire(&my_aio_req->aio_mutex);
+  for (;;) {
+    do {
+      current_req = my_aio_req;
+      /* check if any pending requests on the atomic list */
+      if (!INK_ATOMICLIST_EMPTY(my_aio_req->aio_temp_list))
+        aio_move(my_aio_req);
+      if (!(op = my_aio_req->aio_todo.pop()) && !(op = my_aio_req->http_aio_todo.pop()))
+        break;
+#ifdef AIO_STATS
+      num_requests--;
+      current_req->queued--;
+      ink_atomic_increment((int *) &current_req->pending, 1);
+#endif
+      // update the stats;
+      if (op->aiocb.aio_lio_opcode == LIO_WRITE) {
+        aio_num_write++;
+        aio_bytes_written += op->aiocb.aio_nbytes;
+      } else {
+        aio_num_read++;
+        aio_bytes_read += op->aiocb.aio_nbytes;
+      }
+      ink_mutex_release(&current_req->aio_mutex);
+      if (cache_op((AIOCallbackInternal *) op) <= 0) {
+        if (aio_err_callbck) {
+          AIOCallback *callback_op = new AIOCallbackInternal();
+          callback_op->aiocb.aio_fildes = op->aiocb.aio_fildes;
+          callback_op->mutex = aio_err_callbck->mutex;
+          callback_op->action = aio_err_callbck;
+          eventProcessor.schedule_imm(callback_op);
+        }
+      }
+      ink_atomic_increment((int *) &current_req->requests_queued, -1);
+#ifdef AIO_STATS
+      ink_atomic_increment((int *) &current_req->pending, -1);
+#endif
+      op->link.prev = NULL;
+      op->link.next = NULL;
+      op->mutex = op->action.mutex;
+      if (op->thread == AIO_CALLBACK_THREAD_AIO) {
+        MUTEX_LOCK(lock, op->mutex, thr_info->mutex->thread_holding);
+        if (!op->action.cancelled)
+          op->action.continuation->handleEvent(AIO_EVENT_DONE, op);
+      } else if (op->thread == AIO_CALLBACK_THREAD_ANY)
+        eventProcessor.schedule_imm_signal(op);
+      else
+        op->thread->schedule_imm_signal(op);
+      ink_mutex_acquire(&my_aio_req->aio_mutex);
+    } while (1);
+    timespec timedwait_msec = ink_hrtime_to_timespec(ink_get_hrtime() + HRTIME_MSECONDS(net_config_poll_timeout));
+    ink_cond_timedwait(&my_aio_req->aio_cond, &my_aio_req->aio_mutex, &timedwait_msec);
+  }
+  return 0;
+}
+#else
+int
+DiskHandler::startAIOEvent(int /* event ATS_UNUSED */, Event *e) {
+  SET_HANDLER(&DiskHandler::mainAIOEvent);
+  e->schedule_every(AIO_PERIOD);
+  trigger_event = e;
+  return EVENT_CONT;
+}
+
+int
+DiskHandler::mainAIOEvent(int event, Event *e) {
+  AIOCallback *op = NULL;
+Lagain:
+  int ret = io_getevents(ctx, 0, MAX_AIO_EVENTS, events, NULL);
+  //printf("%d\n", ret);
+  for (int i = 0; i < ret; i++) {
+    op = (AIOCallback *) events[i].data;
+    op->aio_result = events[i].res;
+    ink_assert(op->action.continuation);
+    complete_list.enqueue(op);
+    //op->handleEvent(event, e);
+  }
+  if (ret == MAX_AIO_EVENTS)
+    goto Lagain;
+  if (ret < 0)
+    perror("io_getevents");
+
+  ink_aiocb_t *cbs[MAX_AIO_EVENTS];
+  int num = 0;
+  for (; num < MAX_AIO_EVENTS && ((op = ready_list.dequeue()) != NULL); ++num) {
+    cbs[num] = &op->aiocb;
+    ink_assert(op->action.continuation);
+  }
+  if (num > 0) {
+    int ret;
+    do {
+      ret = io_submit(ctx, num, cbs);
+    } while (ret < 0 && errno == EAGAIN);
+
+    if (ret != num) {
+      if (ret < 0)
+        perror("io_submit error");
+      else {
+        fprintf(stderr, "could not sumbit IOs");
+        ink_assert(0);
+      }
+    }
+  }
+
+  while ((op = complete_list.dequeue()) != NULL) {
+    op->handleEvent(event, e);
+  }
+  return EVENT_CONT;
+}
+
+int
+ink_aio_read(AIOCallback *op, int /* fromAPI ATS_UNUSED */) {
+  op->aiocb.aio_reqprio = AIO_DEFAULT_PRIORITY;
+  op->aiocb.aio_lio_opcode = IO_CMD_PREAD;
+  op->aiocb.data = op;
+  this_ethread()->diskHandler->ready_list.enqueue(op);
+
+  return 1;
+}
+
+int
+ink_aio_write(AIOCallback *op, int /* fromAPI ATS_UNUSED */) {
+  op->aiocb.aio_reqprio = AIO_DEFAULT_PRIORITY;
+  op->aiocb.aio_lio_opcode = IO_CMD_PWRITE;
+  op->aiocb.data = op;
+  this_ethread()->diskHandler->ready_list.enqueue(op);
+
+  return 1;
+}
+
+int
+ink_aio_readv(AIOCallback *op, int /* fromAPI ATS_UNUSED */) {
+  DiskHandler *dh = this_ethread()->diskHandler;
+  AIOCallback *io = op;
+  int sz = 0;
+
+  while (io) {
+    io->aiocb.aio_reqprio = AIO_DEFAULT_PRIORITY;
+    io->aiocb.aio_lio_opcode = IO_CMD_PREAD;
+    io->aiocb.data = io;
+    dh->ready_list.enqueue(io);
+    ++sz;
+    io = io->then;
+  }
+
+  if (sz > 1) {
+    ink_assert(op->action.continuation);
+    AIOVec *vec = new AIOVec(sz, op);
+    while (--sz >= 0) {
+      op->action = vec;
+      op = op->then;
+    }
+  }
+  return 1;
+}
+
+int
+ink_aio_writev(AIOCallback *op, int /* fromAPI ATS_UNUSED */) {
+  DiskHandler *dh = this_ethread()->diskHandler;
+  AIOCallback *io = op;
+  int sz = 0;
+
+  while (io) {
+    io->aiocb.aio_reqprio = AIO_DEFAULT_PRIORITY;
+    io->aiocb.aio_lio_opcode = IO_CMD_PWRITE;
+    io->aiocb.data = io;
+    dh->ready_list.enqueue(io);
+    ++sz;
+    io = io->then;
+  }
+
+  if (sz > 1) {
+    ink_assert(op->action.continuation);
+    AIOVec *vec = new AIOVec(sz, op);
+    while (--sz >= 0) {
+      op->action = vec;
+      op = op->then;
+    }
+  }
+  return 1;
+}
+#endif // AIO_MODE != AIO_MODE_NATIVE
diff --git a/iocore/aio/I_AIO.h b/iocore/aio/I_AIO.h
new file mode 100644
index 00000000..83f9bf5b
--- /dev/null
+++ b/iocore/aio/I_AIO.h
@@ -0,0 +1,163 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Async Disk IO operations.
+
+
+
+ ****************************************************************************/
+#if !defined (_I_AIO_h_)
+#define _I_AIO_h_
+
+#include "libts.h"
+#include "I_EventSystem.h"
+#include "I_RecProcess.h"
+
+#define AIO_MODULE_MAJOR_VERSION 1
+#define AIO_MODULE_MINOR_VERSION 0
+#define AIO_MODULE_VERSION       makeModuleVersion(AIO_MODULE_MAJOR_VERSION,\
+						   AIO_MODULE_MINOR_VERSION,\
+						   PUBLIC_MODULE_HEADER)
+
+#define AIO_EVENT_DONE           (AIO_EVENT_EVENTS_START+0)
+
+#define AIO_MODE_AIO             0
+#define AIO_MODE_SYNC            1
+#define AIO_MODE_THREAD          2
+#define AIO_MODE_NATIVE          3
+
+#if TS_USE_LINUX_NATIVE_AIO
+#define AIO_MODE                 AIO_MODE_NATIVE
+#else
+#define AIO_MODE                 AIO_MODE_THREAD
+#endif
+
+#define LIO_READ        0x1
+#define LIO_WRITE       0x2
+
+#if AIO_MODE == AIO_MODE_NATIVE
+
+#include <libaio.h>
+
+#define MAX_AIO_EVENTS 1024
+
+typedef struct iocb ink_aiocb_t;
+typedef struct io_event ink_io_event_t;
+
+// XXX hokey old-school compatibility with ink_aiocb.h ...
+#define aio_nbytes  u.c.nbytes
+#define aio_offset  u.c.offset
+#define aio_buf     u.c.buf
+
+#else
+
+typedef struct ink_aiocb
+{
+  int aio_fildes;
+  volatile void *aio_buf;       /* buffer location */
+  size_t aio_nbytes;            /* length of transfer */
+  off_t aio_offset;             /* file offset */
+
+  int aio_reqprio;              /* request priority offset */
+  int aio_lio_opcode;           /* listio operation */
+  int aio_state;                /* state flag for List I/O */
+  int aio__pad[1];              /* extension padding */
+} ink_aiocb_t;
+
+bool ink_aio_thread_num_set(int thread_num);
+
+#endif
+
+// AIOCallback::thread special values
+#define AIO_CALLBACK_THREAD_ANY ((EThread*)0) // any regular event thread
+#define AIO_CALLBACK_THREAD_AIO ((EThread*)-1)
+
+#define AIO_LOWEST_PRIORITY      0
+#define AIO_DEFAULT_PRIORITY     AIO_LOWEST_PRIORITY
+
+struct AIOCallback: public Continuation
+{
+  // set before calling aio_read/aio_write
+  ink_aiocb_t aiocb;
+  Action action;
+  EThread *thread;
+  AIOCallback *then;
+  // set on return from aio_read/aio_write
+  int64_t aio_result;
+
+  int ok();
+  AIOCallback() : thread(AIO_CALLBACK_THREAD_ANY), then(0) {
+    aiocb.aio_reqprio = AIO_DEFAULT_PRIORITY;
+  }
+};
+
+#if AIO_MODE == AIO_MODE_NATIVE
+
+struct AIOVec: public Continuation
+{
+  Action action;
+  int size;
+  int completed;
+  AIOCallback *first;
+
+  AIOVec(int sz, AIOCallback *c): Continuation(new_ProxyMutex()), size(sz), completed(0), first(c)
+  {
+    action = c->action;
+    SET_HANDLER(&AIOVec::mainEvent);
+  }
+
+  int mainEvent(int event, Event *e);
+};
+
+struct DiskHandler: public Continuation
+{
+  Event *trigger_event;
+  io_context_t ctx;
+  ink_io_event_t events[MAX_AIO_EVENTS];
+  Que(AIOCallback, link) ready_list;
+  Que(AIOCallback, link) complete_list;
+  int startAIOEvent(int event, Event *e);
+  int mainAIOEvent(int event, Event *e);
+  DiskHandler() {
+    SET_HANDLER(&DiskHandler::startAIOEvent);
+    memset(&ctx, 0, sizeof(ctx));
+    int ret = io_setup(MAX_AIO_EVENTS, &ctx);
+    if (ret < 0) {
+      perror("io_setup error");
+    }
+  }
+};
+#endif
+
+void ink_aio_init(ModuleVersion version);
+int ink_aio_start();
+void ink_aio_set_callback(Continuation * error_callback);
+
+int ink_aio_read(AIOCallback *op, int fromAPI = 0);   // fromAPI is a boolean to indicate if this is from a API call such as upload proxy feature
+int ink_aio_write(AIOCallback *op, int fromAPI = 0);
+int ink_aio_readv(AIOCallback *op, int fromAPI = 0);   // fromAPI is a boolean to indicate if this is from a API call such as upload proxy feature
+int ink_aio_writev(AIOCallback *op, int fromAPI = 0);
+AIOCallback *new_AIOCallback(void);
+#endif
diff --git a/iocore/aio/Inline.cc b/iocore/aio/Inline.cc
new file mode 100644
index 00000000..8e9b6d32
--- /dev/null
+++ b/iocore/aio/Inline.cc
@@ -0,0 +1,30 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using the public interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_AIO.h"
diff --git a/iocore/aio/Makefile.am b/iocore/aio/Makefile.am
new file mode 100644
index 00000000..db25e379
--- /dev/null
+++ b/iocore/aio/Makefile.am
@@ -0,0 +1,59 @@
+# Makefile.am for the traffic/iocore/aio hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/eventsystem \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts
+
+TESTS = test_AIO.sample
+
+noinst_LIBRARIES = libinkaio.a
+check_PROGRAMS = test_AIO
+
+libinkaio_a_SOURCES = \
+  AIO.cc \
+  I_AIO.h \
+  Inline.cc \
+  P_AIO.h
+
+test_AIO_SOURCES = \
+  test_AIO.cc
+
+test_AIO_CXXFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+test_AIO_LDADD = \
+  libinkaio.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/proxy/shared/libUglyLogStubs.a \
+  @LIBTCL@ @HWLOC_LIBS@
diff --git a/iocore/aio/Makefile.in b/iocore/aio/Makefile.in
new file mode 100644
index 00000000..8cdc3bc4
--- /dev/null
+++ b/iocore/aio/Makefile.in
@@ -0,0 +1,1309 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
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+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
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+
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+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__recheck_rx = ^[ 	]*:recheck:[ 	]*
+am__global_test_result_rx = ^[ 	]*:global-test-result:[ 	]*
+am__copy_in_global_log_rx = ^[ 	]*:copy-in-global-log:[ 	]*
+# A command that, given a newline-separated list of test names on the
+# standard input, print the name of the tests that are to be re-run
+# upon "make recheck".
+am__list_recheck_tests = $(AWK) '{ \
+  recheck = 1; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+        { \
+          if ((getline line2 < ($$0 ".log")) < 0) \
+	    recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[nN][Oo]/) \
+        { \
+          recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[yY][eE][sS]/) \
+        { \
+          break; \
+        } \
+    }; \
+  if (recheck) \
+    print $$0; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# A command that, given a newline-separated list of test names on the
+# standard input, create the global log from their .trs and .log files.
+am__create_global_log = $(AWK) ' \
+function fatal(msg) \
+{ \
+  print "fatal: making $@: " msg | "cat >&2"; \
+  exit 1; \
+} \
+function rst_section(header) \
+{ \
+  print header; \
+  len = length(header); \
+  for (i = 1; i <= len; i = i + 1) \
+    printf "="; \
+  printf "\n\n"; \
+} \
+{ \
+  copy_in_global_log = 1; \
+  global_test_result = "RUN"; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+         fatal("failed to read from " $$0 ".trs"); \
+      if (line ~ /$(am__global_test_result_rx)/) \
+        { \
+          sub("$(am__global_test_result_rx)", "", line); \
+          sub("[ 	]*$$", "", line); \
+          global_test_result = line; \
+        } \
+      else if (line ~ /$(am__copy_in_global_log_rx)[nN][oO]/) \
+        copy_in_global_log = 0; \
+    }; \
+  if (copy_in_global_log) \
+    { \
+      rst_section(global_test_result ": " $$0); \
+      while ((rc = (getline line < ($$0 ".log"))) != 0) \
+      { \
+        if (rc < 0) \
+          fatal("failed to read from " $$0 ".log"); \
+        print line; \
+      }; \
+      printf "\n"; \
+    }; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# Restructured Text title.
+am__rst_title = { sed 's/.*/   &   /;h;s/./=/g;p;x;s/ *$$//;p;g' && echo; }
+# Solaris 10 'make', and several other traditional 'make' implementations,
+# pass "-e" to $(SHELL), and POSIX 2008 even requires this.  Work around it
+# by disabling -e (using the XSI extension "set +e") if it's set.
+am__sh_e_setup = case $$- in *e*) set +e;; esac
+# Default flags passed to test drivers.
+am__common_driver_flags = \
+  --color-tests "$$am__color_tests" \
+  --enable-hard-errors "$$am__enable_hard_errors" \
+  --expect-failure "$$am__expect_failure"
+# To be inserted before the command running the test.  Creates the
+# directory for the log if needed.  Stores in $dir the directory
+# containing $f, in $tst the test, in $log the log.  Executes the
+# developer- defined test setup AM_TESTS_ENVIRONMENT (if any), and
+# passes TESTS_ENVIRONMENT.  Set up options for the wrapper that
+# will run the test scripts (or their associated LOG_COMPILER, if
+# thy have one).
+am__check_pre = \
+$(am__sh_e_setup);					\
+$(am__vpath_adj_setup) $(am__vpath_adj)			\
+$(am__tty_colors);					\
+srcdir=$(srcdir); export srcdir;			\
+case "$@" in						\
+  */*) am__odir=`echo "./$@" | sed 's|/[^/]*$$||'`;;	\
+    *) am__odir=.;; 					\
+esac;							\
+test "x$$am__odir" = x"." || test -d "$$am__odir" 	\
+  || $(MKDIR_P) "$$am__odir" || exit $$?;		\
+if test -f "./$$f"; then dir=./;			\
+elif test -f "$$f"; then dir=;				\
+else dir="$(srcdir)/"; fi;				\
+tst=$$dir$$f; log='$@'; 				\
+if test -n '$(DISABLE_HARD_ERRORS)'; then		\
+  am__enable_hard_errors=no; 				\
+else							\
+  am__enable_hard_errors=yes; 				\
+fi; 							\
+case " $(XFAIL_TESTS) " in				\
+  *[\ \	]$$f[\ \	]* | *[\ \	]$$dir$$f[\ \	]*) \
+    am__expect_failure=yes;;				\
+  *)							\
+    am__expect_failure=no;;				\
+esac; 							\
+$(AM_TESTS_ENVIRONMENT) $(TESTS_ENVIRONMENT)
+# A shell command to get the names of the tests scripts with any registered
+# extension removed (i.e., equivalently, the names of the test logs, with
+# the '.log' extension removed).  The result is saved in the shell variable
+# '$bases'.  This honors runtime overriding of TESTS and TEST_LOGS.  Sadly,
+# we cannot use something simpler, involving e.g., "$(TEST_LOGS:.log=)",
+# since that might cause problem with VPATH rewrites for suffix-less tests.
+# See also 'test-harness-vpath-rewrite.sh' and 'test-trs-basic.sh'.
+am__set_TESTS_bases = \
+  bases='$(TEST_LOGS)'; \
+  bases=`for i in $$bases; do echo $$i; done | sed 's/\.log$$//'`; \
+  bases=`echo $$bases`
+RECHECK_LOGS = $(TEST_LOGS)
+AM_RECURSIVE_TARGETS = check recheck
+TEST_SUITE_LOG = test-suite.log
+TEST_EXTENSIONS = @EXEEXT@ .test
+LOG_DRIVER = $(SHELL) $(top_srcdir)/build/aux/test-driver
+LOG_COMPILE = $(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)
+am__set_b = \
+  case '$@' in \
+    */*) \
+      case '$*' in \
+        */*) b='$*';; \
+          *) b=`echo '$@' | sed 's/\.log$$//'`; \
+       esac;; \
+    *) \
+      b='$*';; \
+  esac
+am__test_logs1 = $(TESTS:=.log)
+am__test_logs2 = $(am__test_logs1:@EXEEXT@.log=.log)
+TEST_LOGS = $(am__test_logs2:.test.log=.log)
+TEST_LOG_DRIVER = $(SHELL) $(top_srcdir)/build/aux/test-driver
+TEST_LOG_COMPILE = $(TEST_LOG_COMPILER) $(AM_TEST_LOG_FLAGS) \
+	$(TEST_LOG_FLAGS)
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
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+GEOIP_LIBS = @GEOIP_LIBS@
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+LIBDEMANGLE = @LIBDEMANGLE@
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+OBJDUMP = @OBJDUMP@
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+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
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+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
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+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
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+has_profiler = @has_profiler@
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+ip_transparent = @ip_transparent@
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+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
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+netinet_inh = @netinet_inh@
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+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
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+program_transform_name = @program_transform_name@
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+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/eventsystem \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts
+
+TESTS = test_AIO.sample
+noinst_LIBRARIES = libinkaio.a
+libinkaio_a_SOURCES = \
+  AIO.cc \
+  I_AIO.h \
+  Inline.cc \
+  P_AIO.h
+
+test_AIO_SOURCES = \
+  test_AIO.cc
+
+test_AIO_CXXFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+test_AIO_LDADD = \
+  libinkaio.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/proxy/shared/libUglyLogStubs.a \
+  @LIBTCL@ @HWLOC_LIBS@
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign iocore/aio/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign iocore/aio/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libinkaio.a: $(libinkaio_a_OBJECTS) $(libinkaio_a_DEPENDENCIES) $(EXTRA_libinkaio_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libinkaio.a
+	$(AM_V_AR)$(libinkaio_a_AR) libinkaio.a $(libinkaio_a_OBJECTS) $(libinkaio_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libinkaio.a
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+test_AIO$(EXEEXT): $(test_AIO_OBJECTS) $(test_AIO_DEPENDENCIES) $(EXTRA_test_AIO_DEPENDENCIES) 
+	@rm -f test_AIO$(EXEEXT)
+	$(AM_V_CXXLD)$(test_AIO_LINK) $(test_AIO_OBJECTS) $(test_AIO_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/AIO.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Inline.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test_AIO-test_AIO.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
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+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
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+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(test_AIO_CXXFLAGS) $(CXXFLAGS) -MT test_AIO-test_AIO.o -MD -MP -MF $(DEPDIR)/test_AIO-test_AIO.Tpo -c -o test_AIO-test_AIO.o `test -f 'test_AIO.cc' || echo '$(srcdir)/'`test_AIO.cc
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/test_AIO-test_AIO.Tpo $(DEPDIR)/test_AIO-test_AIO.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='test_AIO.cc' object='test_AIO-test_AIO.o' libtool=no @AMDEPBACKSLASH@
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+
+test_AIO-test_AIO.obj: test_AIO.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(test_AIO_CXXFLAGS) $(CXXFLAGS) -MT test_AIO-test_AIO.obj -MD -MP -MF $(DEPDIR)/test_AIO-test_AIO.Tpo -c -o test_AIO-test_AIO.obj `if test -f 'test_AIO.cc'; then $(CYGPATH_W) 'test_AIO.cc'; else $(CYGPATH_W) '$(srcdir)/test_AIO.cc'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/test_AIO-test_AIO.Tpo $(DEPDIR)/test_AIO-test_AIO.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='test_AIO.cc' object='test_AIO-test_AIO.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(test_AIO_CXXFLAGS) $(CXXFLAGS) -c -o test_AIO-test_AIO.obj `if test -f 'test_AIO.cc'; then $(CYGPATH_W) 'test_AIO.cc'; else $(CYGPATH_W) '$(srcdir)/test_AIO.cc'; fi`
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
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+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
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+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
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+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
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+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
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+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+# Recover from deleted '.trs' file; this should ensure that
+# "rm -f foo.log; make foo.trs" re-run 'foo.test', and re-create
+# both 'foo.log' and 'foo.trs'.  Break the recipe in two subshells
+# to avoid problems with "make -n".
+.log.trs:
+	rm -f $< $@
+	$(MAKE) $(AM_MAKEFLAGS) $<
+
+# Leading 'am--fnord' is there to ensure the list of targets does not
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+am--force-recheck:
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+$(TEST_SUITE_LOG): $(TEST_LOGS)
+	@$(am__set_TESTS_bases); \
+	am__f_ok () { test -f "$$1" && test -r "$$1"; }; \
+	redo_bases=`for i in $$bases; do \
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+	            done`; \
+	if test -n "$$redo_bases"; then \
+	  redo_logs=`for i in $$redo_bases; do echo $$i.log; done`; \
+	  redo_results=`for i in $$redo_bases; do echo $$i.trs; done`; \
+	  if $(am__make_dryrun); then :; else \
+	    rm -f $$redo_logs && rm -f $$redo_results || exit 1; \
+	  fi; \
+	fi; \
+	if test -n "$$am__remaking_logs"; then \
+	  echo "fatal: making $(TEST_SUITE_LOG): possible infinite" \
+	       "recursion detected" >&2; \
+	else \
+	  am__remaking_logs=yes $(MAKE) $(AM_MAKEFLAGS) $$redo_logs; \
+	fi; \
+	if $(am__make_dryrun); then :; else \
+	  st=0;  \
+	  errmsg="fatal: making $(TEST_SUITE_LOG): failed to create"; \
+	  for i in $$redo_bases; do \
+	    test -f $$i.trs && test -r $$i.trs \
+	      || { echo "$$errmsg $$i.trs" >&2; st=1; }; \
+	    test -f $$i.log && test -r $$i.log \
+	      || { echo "$$errmsg $$i.log" >&2; st=1; }; \
+	  done; \
+	  test $$st -eq 0 || exit 1; \
+	fi
+	@$(am__sh_e_setup); $(am__tty_colors); $(am__set_TESTS_bases); \
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+	all=`  grep "^$$ws*:test-result:"           $$results | wc -l`; \
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+	if test `expr $$fail + $$xpass + $$error` -eq 0; then \
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+	result_count () \
+	{ \
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+	    shift; \
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+	    fi; \
+	    echo "$${color_start}# $$desc $$count$${color_end}"; \
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+	create_testsuite_report () \
+	{ \
+	  result_count $$1 "TOTAL:" $$all   "$$brg"; \
+	  result_count $$1 "PASS: " $$pass  "$$grn"; \
+	  result_count $$1 "SKIP: " $$skip  "$$blu"; \
+	  result_count $$1 "XFAIL:" $$xfail "$$lgn"; \
+	  result_count $$1 "FAIL: " $$fail  "$$red"; \
+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
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+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
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+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS:
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
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+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
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+	@set +e; $(am__set_TESTS_bases); \
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+	        am__force_recheck=am--force-recheck \
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+	$(am__set_b); \
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+distdir: $(DISTFILES)
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+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
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+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+mostlyclean-generic:
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+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
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+clean-generic:
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+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-noinstLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-TESTS check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-noinstLIBRARIES cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am recheck tags tags-am uninstall \
+	uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/iocore/aio/P_AIO.h b/iocore/aio/P_AIO.h
new file mode 100644
index 00000000..0c2cb994
--- /dev/null
+++ b/iocore/aio/P_AIO.h
@@ -0,0 +1,173 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Async Disk IO operations.
+
+
+
+ ****************************************************************************/
+#ifndef _P_AIO_h_
+#define _P_AIO_h_
+
+#include "P_EventSystem.h"
+#include "I_AIO.h"
+
+// for debugging
+// #define AIO_STATS 1
+
+#undef  AIO_MODULE_VERSION
+#define AIO_MODULE_VERSION        makeModuleVersion(AIO_MODULE_MAJOR_VERSION,\
+						    AIO_MODULE_MINOR_VERSION,\
+						    PRIVATE_MODULE_HEADER)
+
+TS_INLINE int
+AIOCallback::ok()
+{
+  return (off_t) aiocb.aio_nbytes == (off_t) aio_result;
+}
+
+#if AIO_MODE == AIO_MODE_NATIVE
+
+extern Continuation *aio_err_callbck;
+
+struct AIOCallbackInternal: public AIOCallback
+{
+  int io_complete(int event, void *data);
+  AIOCallbackInternal()
+  {
+    memset ((char *) &(this->aiocb), 0, sizeof(this->aiocb));
+    SET_HANDLER(&AIOCallbackInternal::io_complete);
+  }
+};
+
+TS_INLINE int
+AIOCallbackInternal::io_complete(int event, void *data)
+{
+  (void) event;
+  (void) data;
+
+  if (!ok() && aio_err_callbck)
+    eventProcessor.schedule_imm(aio_err_callbck, ET_CALL, AIO_EVENT_DONE);
+  mutex = action.mutex;
+  MUTEX_LOCK(lock, mutex, this_ethread());
+  if (!action.cancelled)
+    action.continuation->handleEvent(AIO_EVENT_DONE, this);
+  return EVENT_DONE;
+}
+
+TS_INLINE int
+AIOVec::mainEvent(int /* event */, Event *) {
+  ++completed;
+  if (completed < size)
+    return EVENT_CONT;
+  else if (completed == size) {
+    MUTEX_LOCK(lock, action.mutex, this_ethread());
+    if (!action.cancelled)
+      action.continuation->handleEvent(AIO_EVENT_DONE, first);
+    delete this;
+    return EVENT_DONE;
+  }
+  ink_assert(!"AIOVec mainEvent err");
+  return EVENT_ERROR;
+}
+
+#else /* AIO_MODE != AIO_MODE_NATIVE */
+
+struct AIO_Reqs;
+
+struct AIOCallbackInternal: public AIOCallback
+{
+  AIOCallback *first;
+  AIO_Reqs *aio_req;
+  ink_hrtime sleep_time;
+  int io_complete(int event, void *data);
+  AIOCallbackInternal()
+  {
+    const size_t to_zero = sizeof(AIOCallbackInternal)
+      - (size_t) & (((AIOCallbackInternal *) 0)->aiocb);
+    memset((char *) &(this->aiocb), 0, to_zero);
+    SET_HANDLER(&AIOCallbackInternal::io_complete);
+    // we do a memset() on AIOCallback and AIOCallbackInternal, so it sets all the members to 0
+    // coverity[uninit_member]
+  }
+};
+
+TS_INLINE int
+AIOCallbackInternal::io_complete(int event, void *data)
+{
+  (void) event;
+  (void) data;
+  if (!action.cancelled)
+    action.continuation->handleEvent(AIO_EVENT_DONE, this);
+  return EVENT_DONE;
+}
+
+struct AIO_Reqs
+{
+  Que(AIOCallback, link) aio_todo;       /* queue for holding non-http requests */
+  Que(AIOCallback, link) http_aio_todo;  /* queue for http requests */
+  /* Atomic list to temporarily hold the request if the
+     lock for a particular queue cannot be acquired */
+  InkAtomicList aio_temp_list;
+  ink_mutex aio_mutex;
+  ink_cond aio_cond;
+  int index;                    /* position of this struct in the aio_reqs array */
+  volatile int pending;         /* number of outstanding requests on the disk */
+  volatile int queued;          /* total number of aio_todo and http_todo requests */
+  volatile int filedes;         /* the file descriptor for the requests */
+  volatile int requests_queued;
+};
+
+#endif // AIO_MODE == AIO_MODE_NATIVE
+#ifdef AIO_STATS
+class AIOTestData:public Continuation
+{
+public:
+  int num_req;
+  int num_temp;
+  int num_queue;
+  ink_hrtime start;
+
+  int ink_aio_stats(int event, void *data);
+
+  AIOTestData():Continuation(new_ProxyMutex()), num_req(0), num_temp(0), num_queue(0)
+  {
+    start = ink_get_hrtime();
+    SET_HANDLER(&AIOTestData::ink_aio_stats);
+  }
+};
+#endif
+
+enum aio_stat_enum
+{
+  AIO_STAT_READ_PER_SEC,
+  AIO_STAT_KB_READ_PER_SEC,
+  AIO_STAT_WRITE_PER_SEC,
+  AIO_STAT_KB_WRITE_PER_SEC,
+  AIO_STAT_COUNT
+};
+extern RecRawStatBlock *aio_rsb;
+
+#endif
diff --git a/iocore/aio/sample.cfg b/iocore/aio/sample.cfg
new file mode 100644
index 00000000..81deb030
--- /dev/null
+++ b/iocore/aio/sample.cfg
@@ -0,0 +1,17 @@
+disk_size 1
+hotset_size 1
+hotset_frequency 0.5
+run_time 30
+threads_per_disk 1
+touch_data 1
+seq_read_percent 0.5
+seq_write_percent 0.30
+rand_read_percent 0.20
+seq_read_size 131072
+seq_write_size 4093
+rand_read_size 4096
+write_skip 5
+chains 1
+delete_disks 1
+disk_path ./aio.tst
+
diff --git a/iocore/aio/test_AIO.cc b/iocore/aio/test_AIO.cc
new file mode 100644
index 00000000..a275fb65
--- /dev/null
+++ b/iocore/aio/test_AIO.cc
@@ -0,0 +1,536 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_AIO.h"
+#include "InkAPIInternal.h"
+#include "I_Layout.h"
+#include <iostream>
+#include <fstream>
+
+using std::cout;
+using std::endl;
+
+Diags *diags;
+int diags_init = 0;
+#define DIAGS_LOG_FILE "diags.log"
+
+// Necessary for AIO
+#if defined(solaris)
+int net_config_poll_timeout = 30;
+#else
+int net_config_poll_timeout = 10;
+#endif
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+static void
+init_diags(const char *bdt, const char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  strcpy(diags_logpath, DIAGS_LOG_FILE);
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    Warning("couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  Status("opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+#define MAX_DISK_THREADS 200
+#ifdef DISK_ALIGN
+#define MIN_OFFSET       (32*1024)
+#else
+#define MIN_OFFSET       (8*1024)
+#endif
+enum
+{ READ_MODE, WRITE_MODE, RANDOM_READ_MODE };
+
+struct AIO_Device;
+volatile int n_accessors = 0;
+int orig_n_accessors;
+AIO_Device *dev[MAX_DISK_THREADS];
+
+extern RecInt cache_config_threads_per_disk;
+
+int write_after = 0;
+int write_skip = 0;
+int hotset_size = 20;
+double hotset_frequency = 0.9;
+int touch_data = 0;
+int disk_size = 4000;
+int read_size = 1024;
+char *disk_path[MAX_DISK_THREADS];
+int n_disk_path = 0;
+int run_time = 0;
+int threads_per_disk = 1;
+int delete_disks = 0;
+int max_size = 0;
+int use_lseek = 0;
+
+int chains = 1;
+double seq_read_percent = 0.0;
+double seq_write_percent = 0.0;
+double rand_read_percent = 0.0;
+double real_seq_read_percent = 0.0;
+double real_seq_write_percent = 0.0;
+double real_rand_read_percent = 0.0;
+int seq_read_size = 0;
+int seq_write_size = 0;
+int rand_read_size = 0;
+
+struct AIO_Device:public Continuation
+{
+  char *path;
+  int fd;
+  int id;
+  char *buf;
+  ink_hrtime time_start, time_end;
+  int seq_reads;
+  int seq_writes;
+  int rand_reads;
+  int hotset_idx;
+  int mode;
+  AIOCallback *io;
+    AIO_Device(ProxyMutex * m):Continuation(m)
+  {
+    hotset_idx = 0;
+    io = new_AIOCallback();
+    time_start = 0;
+    SET_HANDLER(&AIO_Device::do_hotset);
+  }
+  int select_mode(double p)
+  {
+    if (p < real_seq_read_percent)
+      return READ_MODE;
+    else if (p < real_seq_read_percent + real_seq_write_percent)
+      return WRITE_MODE;
+    else
+      return RANDOM_READ_MODE;
+  };
+  void do_touch_data(off_t orig_len, off_t orig_offset)
+  {
+    if (!touch_data)
+      return;
+    unsigned int len = (unsigned int) orig_len;
+    unsigned int offset = (unsigned int) orig_offset;
+    offset = offset % 1024;
+    char *b = buf;
+    unsigned *x = (unsigned *) b;
+    for (unsigned j = 0; j < (len / sizeof(int)); j++) {
+      x[j] = offset;
+      offset = (offset + 1) % 1024;
+    }
+  };
+  int do_check_data(off_t orig_len, off_t orig_offset)
+  {
+    if (!touch_data)
+      return 0;
+    unsigned int len = (unsigned int) orig_len;
+    unsigned int offset = (unsigned int) orig_offset;
+    offset = offset % 1024;
+    unsigned *x = (unsigned *) buf;
+    for (unsigned j = 0; j < (len / sizeof(int)); j++) {
+      if (x[j] != offset)
+        return 1;
+      offset = (offset + 1) % 1024;
+    }
+    return 0;
+  }
+  int do_hotset(int event, Event * e);
+  int do_fd(int event, Event * e);
+
+};
+
+void
+dump_summary(void)
+{
+  /* dump timing info */
+  printf("Writing summary info\n");
+
+  printf("----------\n");
+  printf("parameters\n");
+  printf("----------\n");
+  printf("%d disks\n", n_disk_path);
+  printf("%d chains\n", chains);
+  printf("%d threads_per_disk\n", threads_per_disk);
+
+  printf("%0.1f percent %d byte seq_reads by volume\n", seq_read_percent * 100.0, seq_read_size);
+  printf("%0.1f percent %d byte seq_writes by volume\n", seq_write_percent * 100.0, seq_write_size);
+  printf("%0.1f percent %d byte rand_reads by volume\n", rand_read_percent * 100.0, rand_read_size);
+  printf("-------\n");
+  printf("factors\n");
+  printf("-------\n");
+  printf("%0.1f percent %d byte seq_reads by count\n", real_seq_read_percent * 100.0, seq_read_size);
+  printf("%0.1f percent %d byte seq_writes by count\n", real_seq_write_percent * 100.0, seq_write_size);
+  printf("%0.1f percent %d byte rand_reads by count\n", real_rand_read_percent * 100.0, rand_read_size);
+
+  printf("-------------------------\n");
+  printf("individual thread results\n");
+  printf("-------------------------\n");
+  double total_seq_reads = 0;
+  double total_seq_writes = 0;
+  double total_rand_reads = 0;
+  double total_secs = 0.0;
+  for (int i = 0; i < orig_n_accessors; i++) {
+    double secs = (dev[i]->time_end - dev[i]->time_start) / 1000000000.0;
+    double ops_sec = (dev[i]->seq_reads + dev[i]->seq_writes + dev[i]->rand_reads) / secs;
+    printf("%s: #sr:%d #sw:%d #rr:%d %0.1f secs %0.1f ops/sec\n",
+           dev[i]->path, dev[i]->seq_reads, dev[i]->seq_writes, dev[i]->rand_reads, secs, ops_sec);
+    total_secs += secs;
+    total_seq_reads += dev[i]->seq_reads;
+    total_seq_writes += dev[i]->seq_writes;
+    total_rand_reads += dev[i]->rand_reads;
+  }
+  printf("-----------------\n");
+  printf("aggregate results\n");
+  printf("-----------------\n");
+  total_secs /= orig_n_accessors;
+  float sr = (total_seq_reads * seq_read_size) / total_secs;
+  sr /= 1024.0 * 1024.0;
+  float sw = (total_seq_writes * seq_write_size) / total_secs;
+  sw /= 1024.0 * 1024.0;
+  float rr = (total_rand_reads * rand_read_size) / total_secs;
+  rr /= 1024.0 * 1024.0;
+  printf("%f ops %0.2f mbytes/sec %0.1f ops/sec %0.1f ops/sec/disk seq_read\n",
+         total_seq_reads, sr, total_seq_reads / total_secs, total_seq_reads / total_secs / n_disk_path);
+  printf("%f ops %0.2f mbytes/sec %0.1f ops/sec %0.1f ops/sec/disk seq_write\n",
+         total_seq_writes, sw, total_seq_writes / total_secs, total_seq_writes / total_secs / n_disk_path);
+  printf("%f ops %0.2f mbytes/sec %0.1f ops/sec %0.1f ops/sec/disk rand_read\n",
+         total_rand_reads, rr, total_rand_reads / total_secs, total_rand_reads / total_secs / n_disk_path);
+  printf("%0.2f total mbytes/sec\n", sr + sw + rr);
+  printf("----------------------------------------------------------\n");
+
+  if (delete_disks)
+    for (int i = 0; i < n_disk_path; i++)
+      unlink(disk_path[i]);
+  exit(0);
+}
+
+int
+AIO_Device::do_hotset(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  off_t max_offset = ((off_t) disk_size) * 1024 * 1024;
+  io->aiocb.aio_lio_opcode = LIO_WRITE;
+  io->aiocb.aio_fildes = fd;
+  io->aiocb.aio_offset = MIN_OFFSET + hotset_idx * max_size;
+  do_touch_data(seq_read_size, io->aiocb.aio_offset);
+  ink_assert(!do_check_data(seq_read_size, io->aiocb.aio_offset));
+  if (!hotset_idx)
+    fprintf(stderr, "Starting hotset document writing \n");
+  if (io->aiocb.aio_offset > max_offset) {
+    fprintf(stderr,
+            "Finished hotset documents  [%d] offset [%6.0f] size [%6.0f]\n",
+            hotset_idx, (float) MIN_OFFSET, (float) max_size);
+    SET_HANDLER(&AIO_Device::do_fd);
+    eventProcessor.schedule_imm(this);
+    return (0);
+  }
+  io->aiocb.aio_nbytes = seq_read_size;
+  io->aiocb.aio_buf = buf;
+  io->action = this;
+  io->thread = mutex->thread_holding;
+  ink_assert(ink_aio_write(io) >= 0);
+  hotset_idx++;
+  return 0;
+}
+
+int
+AIO_Device::do_fd(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (!time_start) {
+    time_start = ink_get_hrtime();
+    fprintf(stderr, "Starting the aio_testing \n");
+  }
+  if ((ink_get_hrtime() - time_start) > (run_time * HRTIME_SECOND)) {
+    time_end = ink_get_hrtime();
+    ink_atomic_increment(&n_accessors, -1);
+    if (n_accessors <= 0)
+      dump_summary();
+    return 0;
+  }
+
+  off_t max_offset = ((off_t) disk_size) * 1024 * 1024; // MB-GB
+  off_t max_hotset_offset = ((off_t) hotset_size) * 1024 * 1024;        // MB-GB
+  off_t seq_read_point = ((off_t) MIN_OFFSET);
+  off_t seq_write_point = ((off_t) MIN_OFFSET) + max_offset / 2 + write_after * 1024 * 1024;
+  seq_write_point += (id % n_disk_path) * (max_offset / (threads_per_disk * 4));
+  if (seq_write_point > max_offset)
+    seq_write_point = MIN_OFFSET;
+
+  if (io->aiocb.aio_lio_opcode == LIO_READ) {
+    ink_assert(!do_check_data(io->aiocb.aio_nbytes, io->aiocb.aio_offset));
+  }
+  memset((void *) buf, 0, max_size);
+  io->aiocb.aio_fildes = fd;
+  io->aiocb.aio_buf = buf;
+  io->action = this;
+  io->thread = mutex->thread_holding;
+
+  switch (select_mode(drand48())) {
+  case READ_MODE:
+    io->aiocb.aio_offset = seq_read_point;
+    io->aiocb.aio_nbytes = seq_read_size;
+    io->aiocb.aio_lio_opcode = LIO_READ;
+    ink_assert(ink_aio_read(io) >= 0);
+    seq_read_point += seq_read_size;
+    if (seq_read_point > max_offset)
+      seq_read_point = MIN_OFFSET;
+    seq_reads++;
+    break;
+  case WRITE_MODE:
+    io->aiocb.aio_offset = seq_write_point;
+    io->aiocb.aio_nbytes = seq_write_size;
+    io->aiocb.aio_lio_opcode = LIO_WRITE;
+    do_touch_data(seq_write_size, ((int) seq_write_point) % 1024);
+    ink_assert(ink_aio_write(io) >= 0);
+    seq_write_point += seq_write_size;
+    seq_write_point += write_skip;
+    if (seq_write_point > max_offset)
+      seq_write_point = MIN_OFFSET;
+
+    seq_writes++;
+    break;
+  case RANDOM_READ_MODE:{
+      // fprintf(stderr, "random read started \n");
+      double p, f;
+      p = drand48();
+      f = drand48();
+      off_t o = 0;
+      if (f < hotset_frequency)
+        o = (off_t) p *max_hotset_offset;
+      else
+        o = (off_t) p *(max_offset - rand_read_size);
+      if (o < MIN_OFFSET)
+        o = MIN_OFFSET;
+      o = (o + (seq_read_size - 1)) & (~(seq_read_size - 1));
+      io->aiocb.aio_offset = o;
+      io->aiocb.aio_nbytes = rand_read_size;
+      io->aiocb.aio_lio_opcode = LIO_READ;
+      ink_assert(ink_aio_read(io) >= 0);
+      rand_reads++;
+      break;
+    }
+  }
+  return 0;
+}
+
+#define PARAM(_s) \
+        else if (strcmp(field_name, #_s) == 0) { \
+            fin >> _s; \
+            cout << "reading " #_s " = "  \
+                 << _s << endl; \
+				  }
+
+int
+read_config(const char *config_filename)
+{
+  std::ifstream fin(config_filename);
+  char field_name[256];
+  char field_value[256];
+
+  if (!fin.rdbuf()->is_open()) {
+    fin.open("sample.cfg");
+    if (!fin.rdbuf()->is_open()) {
+      cout << "cannot open config files " << config_filename << endl;
+      return (0);
+    }
+  }
+  while (!fin.eof()) {
+    field_name[0] = '\0';
+    fin >> field_name;
+    if (0) {
+    }
+    PARAM(hotset_size)
+      PARAM(hotset_frequency)
+      PARAM(touch_data)
+      PARAM(use_lseek)
+      PARAM(write_after)
+      PARAM(write_skip)
+      PARAM(disk_size)
+      PARAM(seq_read_percent)
+      PARAM(seq_write_percent)
+      PARAM(rand_read_percent)
+      PARAM(seq_read_size)
+      PARAM(seq_write_size)
+      PARAM(rand_read_size)
+      PARAM(run_time)
+      PARAM(chains)
+      PARAM(threads_per_disk)
+      PARAM(delete_disks)
+      else if (strcmp(field_name, "disk_path") == 0) {
+      assert(n_disk_path < MAX_DISK_THREADS);
+      fin >> field_value;
+      disk_path[n_disk_path] = strdup(field_value);
+      cout << "reading disk_path = " << disk_path[n_disk_path] << endl;
+      n_disk_path++;
+    }
+  }
+  assert(read_size > 0);
+  int t = seq_read_size + seq_write_size + rand_read_size;
+  real_seq_read_percent = seq_read_percent;
+  real_seq_write_percent = seq_write_percent;
+  real_rand_read_percent = rand_read_percent;
+  if (seq_read_size)
+    real_seq_read_percent *= t / seq_read_size;
+  if (seq_write_size)
+    real_seq_write_percent *= t / seq_write_size;
+  if (rand_read_size)
+    real_rand_read_percent *= t / rand_read_size;
+  float tt = real_seq_read_percent + real_seq_write_percent + real_rand_read_percent;
+  real_seq_read_percent = real_seq_read_percent / tt;
+  real_seq_write_percent = real_seq_write_percent / tt;
+  real_rand_read_percent = real_rand_read_percent / tt;
+  return (1);
+}
+
+int
+main(int /* argc ATS_UNUSED */, char *argv[])
+{
+  int i;
+
+  Layout::create();
+  init_diags("", NULL);
+  RecProcessInit(RECM_STAND_ALONE);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(ink_number_of_processors());
+#if AIO_MODE == AIO_MODE_NATIVE
+  int etype = ET_NET;
+  int n_netthreads = eventProcessor.n_threads_for_type[etype];
+  EThread **netthreads = eventProcessor.eventthread[etype];
+  for (int i = 0; i < n_netthreads; ++i) {
+    netthreads[i]->diskHandler = new DiskHandler();
+    netthreads[i]->schedule_imm(netthreads[i]->diskHandler);
+  }
+#endif
+
+  RecProcessStart();
+  ink_aio_init(AIO_MODULE_VERSION);
+  srand48(time(NULL));
+  printf("input file %s\n", argv[1]);
+  if (!read_config(argv[1]))
+    exit(1);
+
+  max_size = seq_read_size;
+  if (seq_write_size > max_size)
+    max_size = seq_write_size;
+  if (rand_read_size > max_size)
+    max_size = rand_read_size;
+
+  cache_config_threads_per_disk = threads_per_disk;
+  orig_n_accessors = n_disk_path * threads_per_disk;
+
+  for (i = 0; i < n_disk_path; i++) {
+    for (int j = 0; j < threads_per_disk; j++) {
+      dev[n_accessors] = new AIO_Device(new_ProxyMutex());
+      dev[n_accessors]->id = i * threads_per_disk + j;
+      dev[n_accessors]->path = disk_path[i];
+      dev[n_accessors]->seq_reads = 0;
+      dev[n_accessors]->seq_writes = 0;
+      dev[n_accessors]->rand_reads = 0;
+      dev[n_accessors]->fd = open(dev[n_accessors]->path, O_RDWR | O_CREAT, 0600);
+      fchmod(dev[n_accessors]->fd, S_IRWXU | S_IRWXG);
+      if (dev[n_accessors]->fd < 0) {
+        perror(disk_path[i]);
+        exit(1);
+      }
+      dev[n_accessors]->buf = (char *) valloc(max_size);
+      eventProcessor.schedule_imm(dev[n_accessors]);
+      n_accessors++;
+    }
+  }
+
+  this_thread()->execute();
+}
diff --git a/iocore/aio/test_AIO.sample b/iocore/aio/test_AIO.sample
new file mode 100755
index 00000000..2713f070
--- /dev/null
+++ b/iocore/aio/test_AIO.sample
@@ -0,0 +1,2 @@
+#! /usr/bin/env sh
+exec ./test_AIO $srcdir/sample.cfg
diff --git a/iocore/cache/Cache.cc b/iocore/cache/Cache.cc
new file mode 100644
index 00000000..03db89c8
--- /dev/null
+++ b/iocore/cache/Cache.cc
@@ -0,0 +1,3508 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "P_Cache.h"
+
+// Cache Inspector and State Pages
+#include "P_CacheTest.h"
+#include "StatPages.h"
+
+#include "I_Layout.h"
+
+#ifdef HTTP_CACHE
+#include "HttpTransactCache.h"
+#include "HttpSM.h"
+#include "HttpCacheSM.h"
+#include "InkAPIInternal.h"
+#endif
+
+// Compilation Options
+#define USELESS_REENABLES       // allow them for now
+// #define VERIFY_JTEST_DATA
+
+static size_t DEFAULT_RAM_CACHE_MULTIPLIER = 10; // I.e. 10x 1MB per 1GB of disk.
+
+
+#define DOCACHE_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(rsb, x, 0); \
+	RecSetRawStatCount(rsb, x, 0); \
+} while (0);
+
+
+// Configuration
+
+int64_t cache_config_ram_cache_size = AUTO_SIZE_RAM_CACHE;
+int cache_config_ram_cache_algorithm = 0;
+int cache_config_ram_cache_compress = 0;
+int cache_config_ram_cache_compress_percent = 90;
+int cache_config_ram_cache_use_seen_filter = 0;
+int cache_config_http_max_alts = 3;
+int cache_config_dir_sync_frequency = 60;
+int cache_config_permit_pinning = 0;
+int cache_config_vary_on_user_agent = 0;
+int cache_config_select_alternate = 1;
+int cache_config_max_doc_size = 0;
+int cache_config_min_average_object_size = ESTIMATED_OBJECT_SIZE;
+int64_t cache_config_ram_cache_cutoff = AGG_SIZE;
+int cache_config_max_disk_errors = 5;
+int cache_config_hit_evacuate_percent = 10;
+int cache_config_hit_evacuate_size_limit = 0;
+int cache_config_force_sector_size = 0;
+int cache_config_target_fragment_size = DEFAULT_TARGET_FRAGMENT_SIZE;
+int cache_config_agg_write_backlog = AGG_SIZE * 2;
+int cache_config_enable_checksum = 0;
+int cache_config_alt_rewrite_max_size = 4096;
+int cache_config_read_while_writer = 0;
+int cache_config_mutex_retry_delay = 2;
+#ifdef HTTP_CACHE
+static int enable_cache_empty_http_doc = 0;
+#endif
+
+#if TS_USE_INTERIM_CACHE == 1
+int migrate_threshold = 2;
+#endif
+
+// Globals
+
+RecRawStatBlock *cache_rsb = NULL;
+Cache *theStreamCache = 0;
+Cache *theCache = 0;
+CacheDisk **gdisks = NULL;
+int gndisks = 0;
+static volatile int initialize_disk = 0;
+Cache *caches[NUM_CACHE_FRAG_TYPES] = { 0 };
+CacheSync *cacheDirSync = 0;
+Store theCacheStore;
+volatile int CacheProcessor::initialized = CACHE_INITIALIZING;
+volatile uint32_t CacheProcessor::cache_ready = 0;
+volatile int CacheProcessor::start_done = 0;
+int CacheProcessor::clear = 0;
+int CacheProcessor::fix = 0;
+int CacheProcessor::start_internal_flags = 0;
+int CacheProcessor::auto_clear_flag = 0;
+CacheProcessor cacheProcessor;
+Vol **gvol = NULL;
+volatile int gnvol = 0;
+#if TS_USE_INTERIM_CACHE == 1
+CacheDisk **g_interim_disks = NULL;
+int gn_interim_disks = 0;
+int good_interim_disks = 0;
+uint64_t total_cache_size = 0;
+#endif
+ClassAllocator<CacheVC> cacheVConnectionAllocator("cacheVConnection");
+ClassAllocator<EvacuationBlock> evacuationBlockAllocator("evacuationBlock");
+ClassAllocator<CacheRemoveCont> cacheRemoveContAllocator("cacheRemoveCont");
+ClassAllocator<EvacuationKey> evacuationKeyAllocator("evacuationKey");
+int CacheVC::size_to_init = -1;
+CacheKey zero_key(0, 0);
+#if TS_USE_INTERIM_CACHE == 1
+ClassAllocator<MigrateToInterimCache> migrateToInterimCacheAllocator("migrateToInterimCache");
+#endif
+
+struct VolInitInfo
+{
+  off_t recover_pos;
+  AIOCallbackInternal vol_aio[4];
+  char *vol_h_f;
+
+  VolInitInfo()
+  {
+    recover_pos = 0;
+    vol_h_f = (char *)ats_memalign(ats_pagesize(), 4 * STORE_BLOCK_SIZE);
+    memset(vol_h_f, 0, 4 * STORE_BLOCK_SIZE);
+  }
+
+  ~VolInitInfo()
+  {
+    for (int i = 0; i < 4; i++) {
+      vol_aio[i].action = NULL;
+      vol_aio[i].mutex.clear();
+    }
+    free(vol_h_f);
+  }
+};
+
+#if AIO_MODE == AIO_MODE_NATIVE
+struct VolInit : public Continuation
+{
+  Vol *vol;
+  char *path;
+  off_t blocks;
+  int64_t offset;
+  bool vol_clear;
+
+  int mainEvent(int /* event ATS_UNUSED */, Event */* e ATS_UNUSED */) {
+    vol->init(path, blocks, offset, vol_clear);
+    mutex.clear();
+    delete this;
+    return EVENT_DONE;
+  }
+
+  VolInit(Vol *v, char *p, off_t b, int64_t o, bool c) : Continuation(v->mutex),
+    vol(v), path(p), blocks(b), offset(o), vol_clear(c) {
+    SET_HANDLER(&VolInit::mainEvent);
+  }
+};
+
+struct DiskInit : public Continuation
+{
+  CacheDisk *disk;
+  char *s;
+  off_t blocks;
+  off_t askip;
+  int ahw_sector_size;
+  int fildes;
+  bool clear;
+
+  int mainEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */) {
+    disk->open(s, blocks, askip, ahw_sector_size, fildes, clear);
+    ats_free(s);
+    mutex.clear();
+    delete this;
+    return EVENT_DONE;
+  }
+
+  DiskInit(CacheDisk *d, char *str, off_t b, off_t skip, int sector, int f, bool c) : Continuation(d->mutex),
+      disk(d), s(ats_strdup(str)), blocks(b), askip(skip), ahw_sector_size(sector), fildes(f), clear(c) {
+    SET_HANDLER(&DiskInit::mainEvent);
+  }
+};
+#endif
+void cplist_init();
+static void cplist_update();
+int cplist_reconfigure();
+static int create_volume(int volume_number, off_t size_in_blocks, int scheme, CacheVol *cp);
+static void rebuild_host_table(Cache *cache);
+void register_cache_stats(RecRawStatBlock *rsb, const char *prefix);
+
+Queue<CacheVol> cp_list;
+int cp_list_len = 0;
+ConfigVolumes config_volumes;
+
+#if TS_HAS_TESTS
+void force_link_CacheTestCaller() {
+  force_link_CacheTest();
+}
+#endif
+
+int64_t
+cache_bytes_used(int volume)
+{
+  uint64_t used = 0;
+
+  for (int i = 0; i < gnvol; i++) {
+    if (!DISK_BAD(gvol[i]->disk) && (volume == -1 || gvol[i]->cache_vol->vol_number == volume)) {
+      if (!gvol[i]->header->cycle)
+          used += gvol[i]->header->write_pos - gvol[i]->start;
+      else
+          used += gvol[i]->len - vol_dirlen(gvol[i]) - EVACUATION_SIZE;
+    }
+  }
+
+  return used;
+}
+
+int
+cache_stats_bytes_used_cb(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  int volume = -1;
+  char *p;
+
+  // Well, there's no way to pass along the volume ID, so extracting it from the stat name.
+  p = strstr((char *) name, "volume_");
+  if (p != NULL) {
+    // I'm counting on the compiler to optimize out strlen("volume_").
+    volume = strtol(p + strlen("volume_"), NULL, 10);
+  }
+
+  if (cacheProcessor.initialized == CACHE_INITIALIZED) {
+    int64_t used, total =0;
+    float percent_full;
+    used =  cache_bytes_used(volume);
+    RecSetGlobalRawStatSum(rsb, id, used);
+    RecRawStatSyncSum(name, data_type, data, rsb, id);
+    RecGetGlobalRawStatSum(rsb, (int) cache_bytes_total_stat, &total);
+    percent_full = (float)used / (float)total * 100;
+    // The perent_full float below gets rounded down
+    RecSetGlobalRawStatSum(rsb, (int) cache_percent_full_stat, (int64_t) percent_full);
+  }
+
+  return 1;
+}
+
+static int
+validate_rww(int new_value)
+{
+  if (new_value) {
+    float http_bg_fill;
+
+    REC_ReadConfigFloat(http_bg_fill, "proxy.config.http.background_fill_completed_threshold");
+    if (http_bg_fill > 0.0) {
+      Note("to enable reading while writing a document, %s should be 0.0: read while writing disabled",
+           "proxy.config.http.background_fill_completed_threshold");
+      return 0;
+    }
+    if (cache_config_max_doc_size > 0) {
+      Note("to enable reading while writing a document, %s should be 0: read while writing disabled",
+           "proxy.config.cache.max_doc_size");
+      return 0;
+    }
+    return new_value;
+  }
+  return 0;
+}
+
+static int
+update_cache_config(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */, RecData data,
+                    void * /* cookie ATS_UNUSED */)
+{
+  volatile int new_value = validate_rww(data.rec_int);
+  cache_config_read_while_writer = new_value;
+
+  return 0;
+}
+
+CacheVC::CacheVC():alternate_index(CACHE_ALT_INDEX_DEFAULT)
+{
+  size_to_init = sizeof(CacheVC) - (size_t) & ((CacheVC *) 0)->vio;
+  memset((char *) &vio, 0, size_to_init);
+  // the constructor does a memset() on the members that need to be initialized
+  //coverity[uninit_member]
+}
+
+#ifdef HTTP_CACHE
+HTTPInfo::FragOffset*
+CacheVC::get_frag_table()
+{
+  ink_assert(alternate.valid());
+  return alternate.valid() ? alternate.get_frag_table() : 0;
+}
+#endif
+
+VIO *
+CacheVC::do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *abuf)
+{
+  ink_assert(vio.op == VIO::READ);
+  vio.buffer.writer_for(abuf);
+  vio.set_continuation(c);
+  vio.ndone = 0;
+  vio.nbytes = nbytes;
+  vio.vc_server = this;
+#ifdef DEBUG
+  ink_assert(c->mutex->thread_holding);
+#endif
+  if (!trigger && !recursive)
+    trigger = c->mutex->thread_holding->schedule_imm_local(this);
+  return &vio;
+}
+
+VIO *
+CacheVC::do_io_pread(Continuation *c, int64_t nbytes, MIOBuffer *abuf, int64_t offset)
+{
+  ink_assert(vio.op == VIO::READ);
+  vio.buffer.writer_for(abuf);
+  vio.set_continuation(c);
+  vio.ndone = 0;
+  vio.nbytes = nbytes;
+  vio.vc_server = this;
+  seek_to = offset;
+#ifdef DEBUG
+  ink_assert(c->mutex->thread_holding);
+#endif
+  if (!trigger && !recursive)
+    trigger = c->mutex->thread_holding->schedule_imm_local(this);
+  return &vio;
+}
+
+VIO *
+CacheVC::do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *abuf, bool owner)
+{
+  ink_assert(vio.op == VIO::WRITE);
+  ink_assert(!owner);
+  vio.buffer.reader_for(abuf);
+  vio.set_continuation(c);
+  vio.ndone = 0;
+  vio.nbytes = nbytes;
+  vio.vc_server = this;
+#ifdef DEBUG
+  ink_assert(c->mutex->thread_holding);
+#endif
+  if (!trigger && !recursive)
+    trigger = c->mutex->thread_holding->schedule_imm_local(this);
+  return &vio;
+}
+
+void
+CacheVC::do_io_close(int alerrno)
+{
+  ink_assert(mutex->thread_holding == this_ethread());
+  int previous_closed = closed;
+  closed = (alerrno == -1) ? 1 : -1;    // Stupid default arguments
+  DDebug("cache_close", "do_io_close %p %d %d", this, alerrno, closed);
+  if (!previous_closed && !recursive)
+    die();
+}
+
+void
+CacheVC::reenable(VIO *avio)
+{
+  DDebug("cache_reenable", "reenable %p", this);
+  (void) avio;
+#ifdef DEBUG
+  ink_assert(avio->mutex->thread_holding);
+#endif
+  if (!trigger) {
+#ifndef USELESS_REENABLES
+    if (vio.op == VIO::READ) {
+      if (vio.buffer.mbuf->max_read_avail() > vio.buffer.writer()->water_mark)
+        ink_assert(!"useless reenable of cache read");
+    } else if (!vio.buffer.reader()->read_avail())
+      ink_assert(!"useless reenable of cache write");
+#endif
+    trigger = avio->mutex->thread_holding->schedule_imm_local(this);
+  }
+}
+
+void
+CacheVC::reenable_re(VIO *avio)
+{
+  DDebug("cache_reenable", "reenable_re %p", this);
+  (void) avio;
+#ifdef DEBUG
+  ink_assert(avio->mutex->thread_holding);
+#endif
+  if (!trigger) {
+    if (!is_io_in_progress() && !recursive) {
+      handleEvent(EVENT_NONE, (void *) 0);
+    } else
+      trigger = avio->mutex->thread_holding->schedule_imm_local(this);
+  }
+}
+
+bool
+CacheVC::get_data(int i, void *data)
+{
+  switch (i) {
+#ifdef HTTP_CACHE
+  case CACHE_DATA_HTTP_INFO:
+    *((CacheHTTPInfo **) data) = &alternate;
+    return true;
+#endif
+  case CACHE_DATA_RAM_CACHE_HIT_FLAG:
+    *((int *) data) = !f.not_from_ram_cache;
+    return true;
+  default:
+    break;
+  }
+  return false;
+}
+
+int64_t
+CacheVC::get_object_size()
+{
+  return ((CacheVC *) this)->doc_len;
+}
+
+bool CacheVC::set_data(int /* i ATS_UNUSED */ , void * /* data */ )
+{
+  ink_assert(!"CacheVC::set_data should not be called!");
+  return true;
+}
+
+#ifdef HTTP_CACHE
+void
+CacheVC::get_http_info(CacheHTTPInfo ** ainfo)
+{
+  *ainfo = &((CacheVC *) this)->alternate;
+}
+
+// set_http_info must be called before do_io_write
+// cluster vc does an optimization where it calls do_io_write() before
+// calling set_http_info(), but it guarantees that the info will
+// be set before transferring any bytes
+void
+CacheVC::set_http_info(CacheHTTPInfo *ainfo)
+{
+  ink_assert(!total_len);
+  if (f.update) {
+    ainfo->object_key_set(update_key);
+    ainfo->object_size_set(update_len);
+  } else {
+    ainfo->object_key_set(earliest_key);
+    // don't know the total len yet
+  }
+  if (enable_cache_empty_http_doc) {
+    MIMEField *field = ainfo->m_alt->m_response_hdr.field_find(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+    if (field && !field->value_get_int64()) 
+      f.allow_empty_doc = 1;
+    else
+      f.allow_empty_doc = 0;
+  } else 
+    f.allow_empty_doc = 0;
+  alternate.copy_shallow(ainfo);
+  ainfo->clear();
+}
+#endif
+
+bool CacheVC::set_pin_in_cache(time_t time_pin)
+{
+  if (total_len) {
+    ink_assert(!"should Pin the document before writing");
+    return false;
+  }
+  if (vio.op != VIO::WRITE) {
+    ink_assert(!"Pinning only allowed while writing objects to the cache");
+    return false;
+  }
+  pin_in_cache = time_pin;
+  return true;
+}
+
+bool CacheVC::set_disk_io_priority(int priority)
+{
+
+  ink_assert(priority >= AIO_LOWEST_PRIORITY);
+  io.aiocb.aio_reqprio = priority;
+  return true;
+}
+
+time_t CacheVC::get_pin_in_cache()
+{
+  return pin_in_cache;
+}
+
+int
+CacheVC::get_disk_io_priority()
+{
+  return io.aiocb.aio_reqprio;
+}
+
+int
+Vol::begin_read(CacheVC *cont)
+{
+  ink_assert(cont->mutex->thread_holding == this_ethread());
+  ink_assert(mutex->thread_holding == this_ethread());
+#ifdef CACHE_STAT_PAGES
+  ink_assert(!cont->stat_link.next && !cont->stat_link.prev);
+  stat_cache_vcs.enqueue(cont, cont->stat_link);
+#endif
+  // no need for evacuation as the entire document is already in memory
+  if (cont->f.single_fragment)
+    return 0;
+#if TS_USE_INTERIM_CACHE == 1
+  if (dir_ininterim(&cont->earliest_dir))
+    return 0;
+#endif
+  int i = dir_evac_bucket(&cont->earliest_dir);
+  EvacuationBlock *b;
+  for (b = evacuate[i].head; b; b = b->link.next) {
+    if (dir_offset(&b->dir) != dir_offset(&cont->earliest_dir))
+      continue;
+    if (b->readers)
+      b->readers = b->readers + 1;
+    return 0;
+  }
+  // we don't actually need to preserve this block as it is already in
+  // memory, but this is easier, and evacuations are rare
+  EThread *t = cont->mutex->thread_holding;
+  b = new_EvacuationBlock(t);
+  b->readers = 1;
+  b->dir = cont->earliest_dir;
+  b->evac_frags.key = cont->earliest_key;
+  evacuate[i].push(b);
+  return 1;
+}
+
+int
+Vol::close_read(CacheVC *cont)
+{
+  EThread *t = cont->mutex->thread_holding;
+  ink_assert(t == this_ethread());
+  ink_assert(t == mutex->thread_holding);
+  if (dir_is_empty(&cont->earliest_dir))
+    return 1;
+  int i = dir_evac_bucket(&cont->earliest_dir);
+  EvacuationBlock *b;
+  for (b = evacuate[i].head; b;) {
+    EvacuationBlock *next = b->link.next;
+    if (dir_offset(&b->dir) != dir_offset(&cont->earliest_dir)) {
+      b = next;
+      continue;
+    }
+    if (b->readers && !--b->readers) {
+      evacuate[i].remove(b);
+      free_EvacuationBlock(b, t);
+      break;
+    }
+    b = next;
+  }
+#ifdef CACHE_STAT_PAGES
+  stat_cache_vcs.remove(cont, cont->stat_link);
+  ink_assert(!cont->stat_link.next && !cont->stat_link.prev);
+#endif
+  return 1;
+}
+
+// Cache Processor
+
+int
+CacheProcessor::start(int, size_t)
+{
+  return start_internal(0);
+}
+
+static const int DEFAULT_CACHE_OPTIONS = (O_RDWR | _O_ATTRIB_OVERLAPPED);
+
+int
+CacheProcessor::start_internal(int flags)
+{
+
+  ink_assert((int)TS_EVENT_CACHE_OPEN_READ == (int)CACHE_EVENT_OPEN_READ);
+  ink_assert((int)TS_EVENT_CACHE_OPEN_READ_FAILED == (int)CACHE_EVENT_OPEN_READ_FAILED);
+  ink_assert((int)TS_EVENT_CACHE_OPEN_WRITE == (int)CACHE_EVENT_OPEN_WRITE);
+  ink_assert((int)TS_EVENT_CACHE_OPEN_WRITE_FAILED == (int)CACHE_EVENT_OPEN_WRITE_FAILED);
+  ink_assert((int)TS_EVENT_CACHE_REMOVE == (int)CACHE_EVENT_REMOVE);
+  ink_assert((int)TS_EVENT_CACHE_REMOVE_FAILED == (int)CACHE_EVENT_REMOVE_FAILED);
+  ink_assert((int)TS_EVENT_CACHE_SCAN == (int)CACHE_EVENT_SCAN);
+  ink_assert((int)TS_EVENT_CACHE_SCAN_FAILED == (int)CACHE_EVENT_SCAN_FAILED);
+  ink_assert((int)TS_EVENT_CACHE_SCAN_OBJECT == (int)CACHE_EVENT_SCAN_OBJECT);
+  ink_assert((int)TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED == (int)CACHE_EVENT_SCAN_OPERATION_BLOCKED);
+  ink_assert((int)TS_EVENT_CACHE_SCAN_OPERATION_FAILED == (int)CACHE_EVENT_SCAN_OPERATION_FAILED);
+  ink_assert((int)TS_EVENT_CACHE_SCAN_DONE == (int)CACHE_EVENT_SCAN_DONE);
+
+#if AIO_MODE == AIO_MODE_NATIVE
+  int etype = ET_NET;
+  int n_netthreads = eventProcessor.n_threads_for_type[etype];
+  EThread **netthreads = eventProcessor.eventthread[etype];
+  for (int i = 0; i < n_netthreads; ++i) {
+    netthreads[i]->diskHandler = new DiskHandler();
+    netthreads[i]->schedule_imm(netthreads[i]->diskHandler);
+  }
+#endif
+
+  start_internal_flags = flags;
+  clear = !!(flags & PROCESSOR_RECONFIGURE) || auto_clear_flag;
+  fix = !!(flags & PROCESSOR_FIX);
+  start_done = 0;
+  int diskok = 1;
+  Span *sd;
+#if TS_USE_INTERIM_CACHE == 1
+  gn_interim_disks = theCacheStore.n_interim_disks;
+  g_interim_disks = (CacheDisk **) ats_malloc(gn_interim_disks * sizeof(CacheDisk *));
+
+  gn_interim_disks = 0;
+
+  for (int i = 0; i < theCacheStore.n_interim_disks; i++) {
+    sd = theCacheStore.interim_disk[i];
+    char path[PATH_MAX];
+    int opts = O_RDWR;
+    ink_strlcpy(path, sd->pathname, sizeof(path));
+    if (!sd->file_pathname) {
+#if !defined(_WIN32)
+      if (config_volumes.num_http_volumes && config_volumes.num_stream_volumes) {
+        Warning(
+            "It is suggested that you use raw disks if streaming and http are in the same cache");
+      }
+#endif
+      ink_strlcat(path, "/cache.db", sizeof(path));
+      opts |= O_CREAT;
+    }
+    opts |= _O_ATTRIB_OVERLAPPED;
+#ifdef O_DIRECT
+    opts |= O_DIRECT;
+#endif
+#ifdef O_DSYNC
+    opts |= O_DSYNC;
+#endif
+
+    int fd = open(path, opts, 0644);
+    int blocks = sd->blocks;
+    if (fd > 0) {
+      if (!sd->file_pathname) {
+        if (ftruncate(fd, ((uint64_t) blocks) * STORE_BLOCK_SIZE) < 0) {
+          Warning("unable to truncate cache file '%s' to %d blocks", path, blocks);
+          diskok = 0;
+        }
+      }
+      if (diskok) {
+        CacheDisk *disk = new CacheDisk();
+        Debug("cache_hosting", "interim Disk: %d, blocks: %d", gn_interim_disks, blocks);
+        int sector_size = sd->hw_sector_size;
+        if (sector_size < cache_config_force_sector_size)
+          sector_size = cache_config_force_sector_size;
+        if (sd->hw_sector_size <= 0 || sector_size > STORE_BLOCK_SIZE) {
+          Warning("bad hardware sector size %d, resetting to %d", sector_size, STORE_BLOCK_SIZE);
+          sector_size = STORE_BLOCK_SIZE;
+        }
+        off_t skip = ROUND_TO_STORE_BLOCK((sd->offset * STORE_BLOCK_SIZE < START_POS ? START_POS + sd->alignment :
+                                           sd->offset * STORE_BLOCK_SIZE));
+        blocks = blocks - (skip >> STORE_BLOCK_SHIFT);
+        disk->path = ats_strdup(path);
+        disk->hw_sector_size = sector_size;
+        disk->fd = fd;
+        disk->skip = skip;
+        disk->start = skip;
+        /* we can't use fractions of store blocks. */
+        disk->len = blocks;
+        disk->io.aiocb.aio_fildes = fd;
+        disk->io.aiocb.aio_reqprio = 0;
+        disk->io.action = disk;
+        disk->io.thread = AIO_CALLBACK_THREAD_ANY;
+        g_interim_disks[gn_interim_disks++] = disk;
+      }
+    } else
+      Warning("cache unable to open '%s': %s", path, strerror(errno));
+  }
+
+  if (gn_interim_disks == 0) {
+    Warning("unable to open cache disk(s): InterimCache Cache Disabled\n");
+  }
+  good_interim_disks = gn_interim_disks;
+  diskok = 1;
+#endif
+  /* read the config file and create the data structures corresponding
+     to the file */
+  gndisks = theCacheStore.n_disks;
+  gdisks = (CacheDisk **)ats_malloc(gndisks * sizeof(CacheDisk *));
+
+  gndisks = 0;
+  ink_aio_set_callback(new AIO_Callback_handler());
+
+  config_volumes.read_config_file();
+#if TS_USE_INTERIM_CACHE == 1
+  total_cache_size = 0;
+  for (unsigned i = 0; i < theCacheStore.n_disks; i++)
+    total_cache_size += theCacheStore.disk[i]->blocks;
+#endif
+  for (unsigned i = 0; i < theCacheStore.n_disks; i++) {
+    sd = theCacheStore.disk[i];
+    char path[PATH_NAME_MAX];
+    int opts = DEFAULT_CACHE_OPTIONS;
+
+    ink_strlcpy(path, sd->pathname, sizeof(path));
+    if (!sd->file_pathname) {
+      if (config_volumes.num_http_volumes && config_volumes.num_stream_volumes) {
+        Warning("It is suggested that you use raw disks if streaming and http are in the same cache");
+      }
+      ink_strlcat(path, "/cache.db", sizeof(path));
+      opts |= O_CREAT;
+    }
+
+#ifdef O_DIRECT
+    opts |= O_DIRECT;
+#endif
+#ifdef O_DSYNC
+    opts |= O_DSYNC;
+#endif
+
+    int fd = open(path, opts, 0644);
+    int blocks = sd->blocks;
+
+    if (fd < 0 && (opts & O_CREAT))  // Try without O_DIRECT if this is a file on filesystem, e.g. tmpfs.
+      fd = open(path, DEFAULT_CACHE_OPTIONS | O_CREAT, 0644);
+
+    if (fd > 0) {
+      if (!sd->file_pathname) {
+        if (ftruncate(fd, ((uint64_t) blocks) * STORE_BLOCK_SIZE) < 0) {
+          Warning("unable to truncate cache file '%s' to %d blocks", path, blocks);
+          diskok = 0;
+        }
+      }
+      if (diskok) {
+        gdisks[gndisks] = new CacheDisk();
+        gdisks[gndisks]->forced_volume_num = sd->vol_num;
+        Debug("cache_hosting", "Disk: %d, blocks: %d", gndisks, blocks);
+        int sector_size = sd->hw_sector_size;
+
+        if (sector_size < cache_config_force_sector_size)
+          sector_size = cache_config_force_sector_size;
+        if (sd->hw_sector_size <= 0 || sector_size > STORE_BLOCK_SIZE) {
+          Warning("bad hardware sector size %d, resetting to %d", sector_size, STORE_BLOCK_SIZE);
+          sector_size = STORE_BLOCK_SIZE;
+        }
+        off_t skip = ROUND_TO_STORE_BLOCK((sd->offset < START_POS ? START_POS + sd->alignment : sd->offset));
+        blocks = blocks - (skip >> STORE_BLOCK_SHIFT);
+#if AIO_MODE == AIO_MODE_NATIVE
+        eventProcessor.schedule_imm(new DiskInit(gdisks[gndisks], path, blocks, skip, sector_size, fd, clear));
+#else
+        gdisks[gndisks]->open(path, blocks, skip, sector_size, fd, clear);
+#endif
+        gndisks++;
+      }
+    } else {
+      if (errno == EINVAL)
+        Warning("cache unable to open '%s': It must be placed on a file system that supports direct I/O.", path);
+      else
+        Warning("cache unable to open '%s': %s", path, strerror(errno));
+    }
+  }
+
+  if (gndisks == 0) {
+    Warning("unable to open cache disk(s): Cache Disabled\n");
+    return -1;
+  }
+  start_done = 1;
+
+  return 0;
+}
+
+void
+CacheProcessor::diskInitialized()
+{
+  int n_init = ink_atomic_increment(&initialize_disk, 1);
+  int bad_disks = 0;
+  int res = 0;
+  if (n_init == gndisks - 1) {
+
+    int i;
+    for (i = 0; i < gndisks; i++) {
+      if (DISK_BAD(gdisks[i]))
+        bad_disks++;
+    }
+
+    if (bad_disks != 0) {
+      // create a new array
+      CacheDisk **p_good_disks;
+      if ((gndisks - bad_disks) > 0)
+        p_good_disks = (CacheDisk **)ats_malloc((gndisks - bad_disks) * sizeof(CacheDisk *));
+      else
+        p_good_disks = 0;
+
+      int insert_at = 0;
+      for (i = 0; i < gndisks; i++) {
+        if (DISK_BAD(gdisks[i])) {
+          delete gdisks[i];
+          continue;
+        }
+        if (p_good_disks != NULL) {
+          p_good_disks[insert_at++] = gdisks[i];
+        }
+      }
+      ats_free(gdisks);
+      gdisks = p_good_disks;
+      gndisks = gndisks - bad_disks;
+    }
+
+    /* create the cachevol list only if num volumes are greater
+       than 0. */
+    if (config_volumes.num_volumes == 0) {
+      res = cplist_reconfigure();
+      /* if no volumes, default to just an http cache */
+    } else {
+      // else
+      /* create the cachevol list. */
+      cplist_init();
+      /* now change the cachevol list based on the config file */
+      res = cplist_reconfigure();
+    }
+
+    if (res == -1) {
+      /* problems initializing the volume.config. Punt */
+      gnvol = 0;
+      cacheInitialized();
+      return;
+    } else {
+      CacheVol *cp = cp_list.head;
+      for (; cp; cp = cp->link.next) {
+        cp->vol_rsb = RecAllocateRawStatBlock((int) cache_stat_count);
+        char vol_stat_str_prefix[256];
+        snprintf(vol_stat_str_prefix, sizeof(vol_stat_str_prefix), "proxy.process.cache.volume_%d", cp->vol_number);
+        register_cache_stats(cp->vol_rsb, vol_stat_str_prefix);
+      }
+    }
+
+    gvol = (Vol **)ats_malloc(gnvol * sizeof(Vol *));
+    memset(gvol, 0, gnvol * sizeof(Vol *));
+    gnvol = 0;
+    for (i = 0; i < gndisks; i++) {
+      CacheDisk *d = gdisks[i];
+      if (is_debug_tag_set("cache_hosting")) {
+        int j;
+        Debug("cache_hosting", "Disk: %d: Vol Blocks: %u: Free space: %" PRIu64,
+              i, d->header->num_diskvol_blks, d->free_space);
+        for (j = 0; j < (int) d->header->num_volumes; j++) {
+          Debug("cache_hosting", "\tVol: %d Size: %" PRIu64, d->disk_vols[j]->vol_number, d->disk_vols[j]->size);
+        }
+        for (j = 0; j < (int) d->header->num_diskvol_blks; j++) {
+          Debug("cache_hosting", "\tBlock No: %d Size: %" PRIu64" Free: %u",
+                d->header->vol_info[j].number, d->header->vol_info[j].len, d->header->vol_info[j].free);
+        }
+      }
+      d->sync();
+    }
+    if (config_volumes.num_volumes == 0) {
+      theCache = new Cache();
+      theCache->scheme = CACHE_HTTP_TYPE;
+      theCache->open(clear, fix);
+      return;
+    }
+    if (config_volumes.num_http_volumes != 0) {
+      theCache = new Cache();
+      theCache->scheme = CACHE_HTTP_TYPE;
+      theCache->open(clear, fix);
+    }
+
+    if (config_volumes.num_stream_volumes != 0) {
+      theStreamCache = new Cache();
+      theStreamCache->scheme = CACHE_RTSP_TYPE;
+      theStreamCache->open(clear, fix);
+    }
+
+  }
+}
+
+void
+CacheProcessor::cacheInitialized()
+{
+  int i;
+
+  if ((theCache && (theCache->ready == CACHE_INITIALIZING)) ||
+      (theStreamCache && (theStreamCache->ready == CACHE_INITIALIZING)))
+    return;
+  int caches_ready = 0;
+  int cache_init_ok = 0;
+  /* allocate ram size in proportion to the disk space the
+     volume accupies */
+  int64_t total_size = 0;               // count in HTTP & MIXT
+  uint64_t total_cache_bytes = 0;       // bytes that can used in total_size
+  uint64_t total_direntries = 0;        // all the direntries in the cache
+  uint64_t used_direntries = 0;         //   and used
+  uint64_t vol_total_cache_bytes = 0;
+  uint64_t vol_total_direntries = 0;
+  uint64_t vol_used_direntries = 0;
+  Vol *vol;
+
+  ProxyMutex *mutex = this_ethread()->mutex;
+
+  if (theCache) {
+    total_size += theCache->cache_size;
+    Debug("cache_init", "CacheProcessor::cacheInitialized - theCache, total_size = %" PRId64 " = %" PRId64 " MB",
+          total_size, total_size / ((1024 * 1024) / STORE_BLOCK_SIZE));
+  }
+  if (theStreamCache) {
+    total_size += theStreamCache->cache_size;
+    Debug("cache_init", "CacheProcessor::cacheInitialized - theStreamCache, total_size = %" PRId64 " = %" PRId64 " MB",
+          total_size, total_size / ((1024 * 1024) / STORE_BLOCK_SIZE));
+  }
+
+  if (theCache) {
+    if (theCache->ready == CACHE_INIT_FAILED) {
+      Debug("cache_init", "CacheProcessor::cacheInitialized - failed to initialize the cache for http: cache disabled");
+      Warning("failed to initialize the cache for http: cache disabled\n");
+    } else {
+      caches_ready = caches_ready | (1 << CACHE_FRAG_TYPE_HTTP);
+      caches_ready = caches_ready | (1 << CACHE_FRAG_TYPE_NONE);
+      caches[CACHE_FRAG_TYPE_HTTP] = theCache;
+      caches[CACHE_FRAG_TYPE_NONE] = theCache;
+    }
+  }
+  if (theStreamCache) {
+    if (theStreamCache->ready == CACHE_INIT_FAILED) {
+      Debug("cache_init",
+            "CacheProcessor::cacheInitialized - failed to initialize the cache for streaming: cache disabled");
+      Warning("failed to initialize the cache for streaming: cache disabled\n");
+    } else {
+      caches_ready = caches_ready | (1 << CACHE_FRAG_TYPE_RTSP);
+      caches[CACHE_FRAG_TYPE_RTSP] = theStreamCache;
+    }
+  }
+
+  if (caches_ready) {
+    Debug("cache_init", "CacheProcessor::cacheInitialized - caches_ready=0x%0X, gnvol=%d", (unsigned int) caches_ready,
+          gnvol);
+
+    int64_t ram_cache_bytes = 0;
+
+    if (gnvol) {
+      // new ram_caches, with algorithm from the config
+      for (i = 0; i < gnvol; i++) {
+        switch (cache_config_ram_cache_algorithm) {
+          default:
+          case RAM_CACHE_ALGORITHM_CLFUS:
+            gvol[i]->ram_cache = new_RamCacheCLFUS();
+            break;
+          case RAM_CACHE_ALGORITHM_LRU:
+            gvol[i]->ram_cache = new_RamCacheLRU();
+            break;
+        }
+      }
+      // let us calculate the Size
+      if (cache_config_ram_cache_size == AUTO_SIZE_RAM_CACHE) {
+        Debug("cache_init", "CacheProcessor::cacheInitialized - cache_config_ram_cache_size == AUTO_SIZE_RAM_CACHE");
+        for (i = 0; i < gnvol; i++) {
+          vol = gvol[i];
+          gvol[i]->ram_cache->init(vol_dirlen(vol) * DEFAULT_RAM_CACHE_MULTIPLIER, vol);
+#if TS_USE_INTERIM_CACHE == 1
+          gvol[i]->history.init(1<<20, 2097143);
+#endif
+          ram_cache_bytes += vol_dirlen(gvol[i]);
+          Debug("cache_init", "CacheProcessor::cacheInitialized - ram_cache_bytes = %" PRId64 " = %" PRId64 "Mb",
+                ram_cache_bytes, ram_cache_bytes / (1024 * 1024));
+          CACHE_VOL_SUM_DYN_STAT(cache_ram_cache_bytes_total_stat, (int64_t) vol_dirlen(gvol[i]));
+
+          vol_total_cache_bytes = gvol[i]->len - vol_dirlen(gvol[i]);
+          total_cache_bytes += vol_total_cache_bytes;
+          Debug("cache_init", "CacheProcessor::cacheInitialized - total_cache_bytes = %" PRId64 " = %" PRId64 "Mb",
+                total_cache_bytes, total_cache_bytes / (1024 * 1024));
+
+          CACHE_VOL_SUM_DYN_STAT(cache_bytes_total_stat, vol_total_cache_bytes);
+
+
+          vol_total_direntries = gvol[i]->buckets * gvol[i]->segments * DIR_DEPTH;
+          total_direntries += vol_total_direntries;
+          CACHE_VOL_SUM_DYN_STAT(cache_direntries_total_stat, vol_total_direntries);
+
+
+          vol_used_direntries = dir_entries_used(gvol[i]);
+          CACHE_VOL_SUM_DYN_STAT(cache_direntries_used_stat, vol_used_direntries);
+          used_direntries += vol_used_direntries;
+        }
+
+      } else {
+        // we got configured memory size
+        // TODO, should we check the available system memories, or you will
+        //   OOM or swapout, that is not a good situation for the server
+        Debug("cache_init", "CacheProcessor::cacheInitialized - %" PRId64 " != AUTO_SIZE_RAM_CACHE",
+              cache_config_ram_cache_size);
+        int64_t http_ram_cache_size =
+          (theCache) ? (int64_t) (((double) theCache->cache_size / total_size) * cache_config_ram_cache_size) : 0;
+        Debug("cache_init", "CacheProcessor::cacheInitialized - http_ram_cache_size = %" PRId64 " = %" PRId64 "Mb",
+              http_ram_cache_size, http_ram_cache_size / (1024 * 1024));
+        int64_t stream_ram_cache_size = cache_config_ram_cache_size - http_ram_cache_size;
+        Debug("cache_init", "CacheProcessor::cacheInitialized - stream_ram_cache_size = %" PRId64 " = %" PRId64 "Mb",
+              stream_ram_cache_size, stream_ram_cache_size / (1024 * 1024));
+
+        // Dump some ram_cache size information in debug mode.
+        Debug("ram_cache", "config: size = %" PRId64 ", cutoff = %" PRId64 "",
+              cache_config_ram_cache_size, cache_config_ram_cache_cutoff);
+
+        for (i = 0; i < gnvol; i++) {
+          vol = gvol[i];
+          double factor;
+          if (gvol[i]->cache == theCache) {
+            factor = (double) (int64_t) (gvol[i]->len >> STORE_BLOCK_SHIFT) / (int64_t) theCache->cache_size;
+            Debug("cache_init", "CacheProcessor::cacheInitialized - factor = %f", factor);
+            gvol[i]->ram_cache->init((int64_t) (http_ram_cache_size * factor), vol);
+            ram_cache_bytes += (int64_t) (http_ram_cache_size * factor);
+            CACHE_VOL_SUM_DYN_STAT(cache_ram_cache_bytes_total_stat, (int64_t) (http_ram_cache_size * factor));
+          } else {
+            factor = (double) (int64_t) (gvol[i]->len >> STORE_BLOCK_SHIFT) / (int64_t) theStreamCache->cache_size;
+            Debug("cache_init", "CacheProcessor::cacheInitialized - factor = %f", factor);
+            gvol[i]->ram_cache->init((int64_t) (stream_ram_cache_size * factor), vol);
+            ram_cache_bytes += (int64_t) (stream_ram_cache_size * factor);
+            CACHE_VOL_SUM_DYN_STAT(cache_ram_cache_bytes_total_stat, (int64_t) (stream_ram_cache_size * factor));
+          }
+          Debug("cache_init", "CacheProcessor::cacheInitialized[%d] - ram_cache_bytes = %" PRId64 " = %" PRId64 "Mb",
+                i, ram_cache_bytes, ram_cache_bytes / (1024 * 1024));
+#if TS_USE_INTERIM_CACHE == 1
+          gvol[i]->history.init(1<<20, 2097143);
+#endif
+          vol_total_cache_bytes = gvol[i]->len - vol_dirlen(gvol[i]);
+          total_cache_bytes += vol_total_cache_bytes;
+          CACHE_VOL_SUM_DYN_STAT(cache_bytes_total_stat, vol_total_cache_bytes);
+          Debug("cache_init", "CacheProcessor::cacheInitialized - total_cache_bytes = %" PRId64 " = %" PRId64 "Mb",
+                total_cache_bytes, total_cache_bytes / (1024 * 1024));
+
+          vol_total_direntries = gvol[i]->buckets * gvol[i]->segments * DIR_DEPTH;
+          total_direntries += vol_total_direntries;
+          CACHE_VOL_SUM_DYN_STAT(cache_direntries_total_stat, vol_total_direntries);
+
+
+          vol_used_direntries = dir_entries_used(gvol[i]);
+          CACHE_VOL_SUM_DYN_STAT(cache_direntries_used_stat, vol_used_direntries);
+          used_direntries += vol_used_direntries;
+
+        }
+      }
+      switch (cache_config_ram_cache_compress) {
+        default:
+          Fatal("unknown RAM cache compression type: %d", cache_config_ram_cache_compress);
+        case CACHE_COMPRESSION_NONE:
+        case CACHE_COMPRESSION_FASTLZ:
+          break;
+        case CACHE_COMPRESSION_LIBZ:
+#if ! TS_HAS_LIBZ
+          Fatal("libz not available for RAM cache compression");
+#endif
+          break;
+        case CACHE_COMPRESSION_LIBLZMA:
+#if ! TS_HAS_LZMA
+          Fatal("lzma not available for RAM cache compression");
+#endif
+          break;
+      }
+
+      GLOBAL_CACHE_SET_DYN_STAT(cache_ram_cache_bytes_total_stat, ram_cache_bytes);
+      GLOBAL_CACHE_SET_DYN_STAT(cache_bytes_total_stat, total_cache_bytes);
+      GLOBAL_CACHE_SET_DYN_STAT(cache_direntries_total_stat, total_direntries);
+      GLOBAL_CACHE_SET_DYN_STAT(cache_direntries_used_stat, used_direntries);
+      dir_sync_init();
+      cache_init_ok = 1;
+    } else
+      Warning("cache unable to open any vols, disabled");
+  }
+  if (cache_init_ok) {
+    // Initialize virtual cache
+    CacheProcessor::initialized = CACHE_INITIALIZED;
+    CacheProcessor::cache_ready = caches_ready;
+    Note("cache enabled");
+#ifdef CLUSTER_CACHE
+    if (!(start_internal_flags & PROCESSOR_RECONFIGURE)) {
+      CacheContinuation::init();
+      clusterProcessor.start();
+    }
+#endif
+  } else {
+    CacheProcessor::initialized = CACHE_INIT_FAILED;
+    Note("cache disabled");
+  }
+  // Fire callback to signal initialization finished.
+  if (cb_after_init)
+    cb_after_init();
+}
+
+void
+CacheProcessor::stop()
+{
+}
+
+int
+CacheProcessor::dir_check(bool afix)
+{
+  for (int i = 0; i < gnvol; i++)
+    gvol[i]->dir_check(afix);
+  return 0;
+}
+
+int
+CacheProcessor::db_check(bool afix)
+{
+  for (int i = 0; i < gnvol; i++)
+    gvol[i]->db_check(afix);
+  return 0;
+}
+
+int
+Vol::db_check(bool /* fix ATS_UNUSED */ )
+{
+  char tt[256];
+  printf("    Data for [%s]\n", hash_id);
+  printf("        Length:          %" PRIu64 "\n", (uint64_t)len);
+  printf("        Write Position:  %" PRIu64 "\n", (uint64_t) (header->write_pos - skip));
+  printf("        Phase:           %d\n", (int)!!header->phase);
+  ink_ctime_r(&header->create_time, tt);
+  tt[strlen(tt) - 1] = 0;
+  printf("        Create Time:     %s\n", tt);
+  printf("        Sync Serial:     %u\n", (unsigned int)header->sync_serial);
+  printf("        Write Serial:    %u\n", (unsigned int)header->write_serial);
+  printf("\n");
+
+  return 0;
+}
+
+static void
+vol_init_data_internal(Vol *d)
+{
+  d->buckets = ((d->len - (d->start - d->skip)) / cache_config_min_average_object_size) / DIR_DEPTH;
+  d->segments = (d->buckets + (((1<<16)-1)/DIR_DEPTH)) / ((1<<16)/DIR_DEPTH);
+  d->buckets = (d->buckets + d->segments - 1) / d->segments;
+  d->start = d->skip + 2 *vol_dirlen(d);
+}
+
+static void
+vol_init_data(Vol *d) {
+  // iteratively calculate start + buckets
+  vol_init_data_internal(d);
+  vol_init_data_internal(d);
+  vol_init_data_internal(d);
+}
+
+void
+vol_init_dir(Vol *d)
+{
+  int b, s, l;
+
+  for (s = 0; s < d->segments; s++) {
+    d->header->freelist[s] = 0;
+    Dir *seg = dir_segment(s, d);
+    for (l = 1; l < DIR_DEPTH; l++) {
+      for (b = 0; b < d->buckets; b++) {
+        Dir *bucket = dir_bucket(b, seg);
+        dir_free_entry(dir_bucket_row(bucket, l), s, d);
+      }
+    }
+  }
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+void
+interimvol_clear_init(InterimCacheVol *d)
+{
+  memset(d->header, 0, sizeof(InterimVolHeaderFooter));
+  d->header->magic = VOL_MAGIC;
+  d->header->version.ink_major = CACHE_DB_MAJOR_VERSION;
+  d->header->version.ink_minor = CACHE_DB_MINOR_VERSION;
+  d->header->agg_pos = d->header->write_pos = d->start;
+  d->header->last_write_pos = d->header->write_pos;
+  d->header->phase = 0;
+  d->header->cycle = 0;
+  d->header->create_time = time(NULL);
+  d->header->dirty = 0;
+  d->sector_size = d->header->sector_size = d->disk->hw_sector_size;
+}
+#endif
+
+void
+vol_clear_init(Vol *d)
+{
+  size_t dir_len = vol_dirlen(d);
+  memset(d->raw_dir, 0, dir_len);
+  vol_init_dir(d);
+  d->header->magic = VOL_MAGIC;
+  d->header->version.ink_major = CACHE_DB_MAJOR_VERSION;
+  d->header->version.ink_minor = CACHE_DB_MINOR_VERSION;
+  d->scan_pos = d->header->agg_pos = d->header->write_pos = d->start;
+  d->header->last_write_pos = d->header->write_pos;
+  d->header->phase = 0;
+  d->header->cycle = 0;
+  d->header->create_time = time(NULL);
+  d->header->dirty = 0;
+  d->sector_size = d->header->sector_size = d->disk->hw_sector_size;
+  *d->footer = *d->header;
+
+#if TS_USE_INTERIM_CACHE == 1
+  for (int i = 0; i < d->num_interim_vols; i++) {
+    interimvol_clear_init(&(d->interim_vols[i]));
+  }
+#endif
+}
+
+int
+vol_dir_clear(Vol *d)
+{
+  size_t dir_len = vol_dirlen(d);
+  vol_clear_init(d);
+
+  if (pwrite(d->fd, d->raw_dir, dir_len, d->skip) < 0) {
+    Warning("unable to clear cache directory '%s'", d->hash_id);
+    return -1;
+  }
+  return 0;
+}
+
+int
+Vol::clear_dir()
+{
+  size_t dir_len = vol_dirlen(this);
+  vol_clear_init(this);
+
+  SET_HANDLER(&Vol::handle_dir_clear);
+
+  io.aiocb.aio_fildes = fd;
+  io.aiocb.aio_buf = raw_dir;
+  io.aiocb.aio_nbytes = dir_len;
+  io.aiocb.aio_offset = skip;
+  io.action = this;
+  io.thread = AIO_CALLBACK_THREAD_ANY;
+  io.then = 0;
+  ink_assert(ink_aio_write(&io));
+  return 0;
+}
+
+int
+Vol::init(char *s, off_t blocks, off_t dir_skip, bool clear)
+{
+  dir_skip = ROUND_TO_STORE_BLOCK((dir_skip < START_POS ? START_POS : dir_skip));
+  path = ats_strdup(s);
+  const size_t hash_id_size = strlen(s) + 32;
+  hash_id = (char *)ats_malloc(hash_id_size);
+  ink_strlcpy(hash_id, s, hash_id_size);
+  const size_t s_size = strlen(s);
+  snprintf(hash_id + s_size, (hash_id_size - s_size), " %" PRIu64 ":%" PRIu64 "",
+           (uint64_t)dir_skip, (uint64_t)blocks);
+  hash_id_md5.encodeBuffer(hash_id, strlen(hash_id));
+  len = blocks * STORE_BLOCK_SIZE;
+  ink_assert(len <= MAX_VOL_SIZE);
+  skip = dir_skip;
+  prev_recover_pos = 0;
+
+  // successive approximation, directory/meta data eats up some storage
+  start = dir_skip;
+  vol_init_data(this);
+  data_blocks = (len - (start - skip)) / STORE_BLOCK_SIZE;
+  hit_evacuate_window = (data_blocks * cache_config_hit_evacuate_percent) / 100;
+
+  evacuate_size = (int) (len / EVACUATION_BUCKET_SIZE) + 2;
+  int evac_len = (int) evacuate_size * sizeof(DLL<EvacuationBlock>);
+  evacuate = (DLL<EvacuationBlock> *)ats_malloc(evac_len);
+  memset(evacuate, 0, evac_len);
+
+  Debug("cache_init", "allocating %zu directory bytes for a %lld byte volume (%lf%%)",
+    vol_dirlen(this), (long long)this->len, (double)vol_dirlen(this) / (double)this->len * 100.0);
+  raw_dir = (char *)ats_memalign(ats_pagesize(), vol_dirlen(this));
+  dir = (Dir *) (raw_dir + vol_headerlen(this));
+  header = (VolHeaderFooter *) raw_dir;
+  footer = (VolHeaderFooter *) (raw_dir + vol_dirlen(this) - ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter)));
+
+#if TS_USE_INTERIM_CACHE == 1
+  num_interim_vols = good_interim_disks;
+  ink_assert(num_interim_vols >= 0 && num_interim_vols <= 8);
+  for (int i = 0; i < num_interim_vols; i++) {
+    double r = (double) blocks / total_cache_size;
+    off_t vlen = off_t (r * g_interim_disks[i]->len * STORE_BLOCK_SIZE);
+    vlen = (vlen / STORE_BLOCK_SIZE) * STORE_BLOCK_SIZE;
+    off_t start = ink_atomic_increment(&g_interim_disks[i]->skip, vlen);
+    interim_vols[i].init(start, vlen, g_interim_disks[i], this, &(this->header->interim_header[i]));
+    ink_assert(interim_vols[i].start + interim_vols[i].len <= g_interim_disks[i]->len * STORE_BLOCK_SIZE);
+  }
+#endif
+
+  if (clear) {
+    Note("clearing cache directory '%s'", hash_id);
+    return clear_dir();
+  }
+
+  init_info = new VolInitInfo();
+  int footerlen = ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter));
+  off_t footer_offset = vol_dirlen(this) - footerlen;
+  // try A
+  off_t as = skip;
+  if (is_debug_tag_set("cache_init"))
+    Note("reading directory '%s'", hash_id);
+  SET_HANDLER(&Vol::handle_header_read);
+  init_info->vol_aio[0].aiocb.aio_offset = as;
+  init_info->vol_aio[1].aiocb.aio_offset = as + footer_offset;
+  off_t bs = skip + vol_dirlen(this);
+  init_info->vol_aio[2].aiocb.aio_offset = bs;
+  init_info->vol_aio[3].aiocb.aio_offset = bs + footer_offset;
+
+  for (unsigned i = 0; i < countof(init_info->vol_aio); i++) {
+    AIOCallback *aio = &(init_info->vol_aio[i]);
+    aio->aiocb.aio_fildes = fd;
+    aio->aiocb.aio_buf = &(init_info->vol_h_f[i * STORE_BLOCK_SIZE]);
+    aio->aiocb.aio_nbytes = footerlen;
+    aio->action = this;
+    aio->thread = AIO_CALLBACK_THREAD_ANY;
+    aio->then = (i < 3) ? &(init_info->vol_aio[i + 1]) : 0;
+  }
+#if AIO_MODE == AIO_MODE_NATIVE
+  ink_assert(ink_aio_readv(init_info->vol_aio));
+#else
+  ink_assert(ink_aio_read(init_info->vol_aio));
+#endif
+  return 0;
+}
+
+int
+Vol::handle_dir_clear(int event, void *data)
+{
+  size_t dir_len = vol_dirlen(this);
+  AIOCallback *op;
+
+  if (event == AIO_EVENT_DONE) {
+    op = (AIOCallback *) data;
+    if ((size_t) op->aio_result != (size_t) op->aiocb.aio_nbytes) {
+      Warning("unable to clear cache directory '%s'", hash_id);
+      fd = -1;
+    }
+
+    if (op->aiocb.aio_nbytes == dir_len) {
+      /* clear the header for directory B. We don't need to clear the
+         whole of directory B. The header for directory B starts at
+         skip + len */
+      op->aiocb.aio_nbytes = ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter));
+      op->aiocb.aio_offset = skip + dir_len;
+      ink_assert(ink_aio_write(op));
+      return EVENT_DONE;
+    }
+    set_io_not_in_progress();
+    SET_HANDLER(&Vol::dir_init_done);
+    dir_init_done(EVENT_IMMEDIATE, 0);
+    /* mark the volume as bad */
+  }
+  return EVENT_DONE;
+}
+
+int
+Vol::handle_dir_read(int event, void *data)
+{
+  AIOCallback *op = (AIOCallback *) data;
+
+  if (event == AIO_EVENT_DONE) {
+    if ((size_t) op->aio_result != (size_t) op->aiocb.aio_nbytes) {
+      clear_dir();
+      return EVENT_DONE;
+    }
+  }
+
+  if (header->magic != VOL_MAGIC || header->version.ink_major != CACHE_DB_MAJOR_VERSION || footer->magic != VOL_MAGIC) {
+    Warning("bad footer in cache directory for '%s', clearing", hash_id);
+    Note("clearing cache directory '%s'", hash_id);
+    clear_dir();
+    return EVENT_DONE;
+  }
+  CHECK_DIR(this);
+
+  sector_size = header->sector_size;
+
+#if TS_USE_INTERIM_CACHE == 1
+  if (num_interim_vols > 0) {
+    interim_done = 0;
+    for (int i = 0; i < num_interim_vols; i++) {
+      interim_vols[i].recover_data();
+    }
+  } else {
+#endif
+
+  return this->recover_data();
+
+#if TS_USE_INTERIM_CACHE == 1
+  }
+#endif
+
+  return EVENT_CONT;
+}
+
+int
+Vol::recover_data()
+{
+  SET_HANDLER(&Vol::handle_recover_from_data);
+  return handle_recover_from_data(EVENT_IMMEDIATE, 0);
+}
+
+/*
+   Philosophy:  The idea is to find the region of disk that could be
+   inconsistent and remove all directory entries pointing to that potentially
+   inconsistent region.
+   Start from a consistent position (the write_pos of the last directory
+   synced to disk) and scan forward. Two invariants for docs that were
+   written to the disk after the directory was synced:
+
+   1. doc->magic == DOC_MAGIC
+
+   The following two cases happen only when the previous generation
+   documents are aligned with the current ones.
+
+   2. All the docs written to the disk
+   after the directory was synced will have their sync_serial <=
+   header->sync_serial + 1,  because the write aggregation can take
+   indeterminate amount of time to sync. The doc->sync_serial can be
+   equal to header->sync_serial + 1, because we increment the sync_serial
+   before we sync the directory to disk.
+
+   3. The doc->sync_serial will always increase. If doc->sync_serial
+   decreases, the document was written in the previous phase
+
+   If either of these conditions fail and we are not too close to the end
+   (see the next comment ) then we're done
+
+   We actually start from header->last_write_pos instead of header->write_pos
+   to make sure that we haven't wrapped around the whole disk without
+   syncing the directory.  Since the sync serial is 60 seconds, it is
+   entirely possible to write through the whole cache without
+   once syncing the directory. In this case, we need to clear the
+   cache.The documents written right before we synced the
+   directory to disk should have the write_serial <= header->sync_serial.
+
+      */
+
+int
+Vol::handle_recover_from_data(int event, void * /* data ATS_UNUSED */ )
+{
+  uint32_t got_len = 0;
+  uint32_t max_sync_serial = header->sync_serial;
+  char *s, *e;
+  if (event == EVENT_IMMEDIATE) {
+    if (header->sync_serial == 0) {
+      io.aiocb.aio_buf = NULL;
+      SET_HANDLER(&Vol::handle_recover_write_dir);
+      return handle_recover_write_dir(EVENT_IMMEDIATE, 0);
+    }
+    // initialize
+    recover_wrapped = 0;
+    last_sync_serial = 0;
+    last_write_serial = 0;
+    recover_pos = header->last_write_pos;
+    if (recover_pos >= skip + len) {
+      recover_wrapped = 1;
+      recover_pos = start;
+    }
+    io.aiocb.aio_buf = (char *)ats_memalign(ats_pagesize(), RECOVERY_SIZE);
+    io.aiocb.aio_nbytes = RECOVERY_SIZE;
+    if ((off_t)(recover_pos + io.aiocb.aio_nbytes) > (off_t)(skip + len))
+      io.aiocb.aio_nbytes = (skip + len) - recover_pos;
+  } else if (event == AIO_EVENT_DONE) {
+    if ((size_t) io.aiocb.aio_nbytes != (size_t) io.aio_result) {
+      Warning("disk read error on recover '%s', clearing", hash_id);
+      goto Lclear;
+    }
+    if (io.aiocb.aio_offset == header->last_write_pos) {
+
+      /* check that we haven't wrapped around without syncing
+         the directory. Start from last_write_serial (write pos the documents
+         were written to just before syncing the directory) and make sure
+         that all documents have write_serial <= header->write_serial.
+       */
+      uint32_t to_check = header->write_pos - header->last_write_pos;
+      ink_assert(to_check && to_check < (uint32_t)io.aiocb.aio_nbytes);
+      uint32_t done = 0;
+      s = (char *) io.aiocb.aio_buf;
+      while (done < to_check) {
+        Doc *doc = (Doc *) (s + done);
+        if (doc->magic != DOC_MAGIC || doc->write_serial > header->write_serial) {
+          Warning("no valid directory found while recovering '%s', clearing", hash_id);
+          goto Lclear;
+        }
+        done += round_to_approx_size(doc->len);
+        if (doc->sync_serial > last_write_serial)
+          last_sync_serial = doc->sync_serial;
+      }
+      ink_assert(done == to_check);
+
+      got_len = io.aiocb.aio_nbytes - done;
+      recover_pos += io.aiocb.aio_nbytes;
+      s = (char *) io.aiocb.aio_buf + done;
+      e = s + got_len;
+    } else {
+      got_len = io.aiocb.aio_nbytes;
+      recover_pos += io.aiocb.aio_nbytes;
+      s = (char *) io.aiocb.aio_buf;
+      e = s + got_len;
+    }
+  }
+  // examine what we got
+  if (got_len) {
+
+    Doc *doc = NULL;
+
+    if (recover_wrapped && start == io.aiocb.aio_offset) {
+      doc = (Doc *) s;
+      if (doc->magic != DOC_MAGIC || doc->write_serial < last_write_serial) {
+        recover_pos = skip + len - EVACUATION_SIZE;
+        goto Ldone;
+      }
+    }
+
+    while (s < e) {
+      doc = (Doc *) s;
+
+      if (doc->magic != DOC_MAGIC || doc->sync_serial != last_sync_serial) {
+
+        if (doc->magic == DOC_MAGIC) {
+          if (doc->sync_serial > header->sync_serial)
+            max_sync_serial = doc->sync_serial;
+
+          /*
+             doc->magic == DOC_MAGIC, but doc->sync_serial != last_sync_serial
+             This might happen in the following situations
+             1. We are starting off recovery. In this case the
+             last_sync_serial == header->sync_serial, but the doc->sync_serial
+             can be anywhere in the range (0, header->sync_serial + 1]
+             If this is the case, update last_sync_serial and continue;
+
+             2. A dir sync started between writing documents to the
+             aggregation buffer and hence the doc->sync_serial went up.
+             If the doc->sync_serial is greater than the last
+             sync serial and less than (header->sync_serial + 2) then
+             continue;
+
+             3. If the position we are recovering from is within AGG_SIZE
+             from the disk end, then we can't trust this document. The
+             aggregation buffer might have been larger than the remaining space
+             at the end and we decided to wrap around instead of writing
+             anything at that point. In this case, wrap around and start
+             from the beginning.
+
+             If neither of these 3 cases happen, then we are indeed done.
+
+           */
+
+          // case 1
+          // case 2
+          if (doc->sync_serial > last_sync_serial && doc->sync_serial <= header->sync_serial + 1) {
+            last_sync_serial = doc->sync_serial;
+            s += round_to_approx_size(doc->len);
+            continue;
+          }
+          // case 3 - we have already recoverd some data and
+          // (doc->sync_serial < last_sync_serial) ||
+          // (doc->sync_serial > header->sync_serial + 1).
+          // if we are too close to the end, wrap around
+          else if (recover_pos - (e - s) > (skip + len) - AGG_SIZE) {
+            recover_wrapped = 1;
+            recover_pos = start;
+            io.aiocb.aio_nbytes = RECOVERY_SIZE;
+
+            break;
+          }
+          // we are done. This doc was written in the earlier phase
+          recover_pos -= e - s;
+          goto Ldone;
+        } else {
+          // doc->magic != DOC_MAGIC
+          // If we are in the danger zone - recover_pos is within AGG_SIZE
+          // from the end, then wrap around
+          recover_pos -= e - s;
+          if (recover_pos > (skip + len) - AGG_SIZE) {
+            recover_wrapped = 1;
+            recover_pos = start;
+            io.aiocb.aio_nbytes = RECOVERY_SIZE;
+
+            break;
+          }
+          // we ar not in the danger zone
+          goto Ldone;
+        }
+      }
+      // doc->magic == DOC_MAGIC && doc->sync_serial == last_sync_serial
+      last_write_serial = doc->write_serial;
+      s += round_to_approx_size(doc->len);
+    }
+
+    /* if (s > e) then we gone through RECOVERY_SIZE; we need to
+       read more data off disk and continue recovering */
+    if (s >= e) {
+      /* In the last iteration, we increment s by doc->len...need to undo
+         that change */
+      if (s > e)
+        s -= round_to_approx_size(doc->len);
+      recover_pos -= e - s;
+      if (recover_pos >= skip + len)
+        recover_pos = start;
+      io.aiocb.aio_nbytes = RECOVERY_SIZE;
+      if ((off_t)(recover_pos + io.aiocb.aio_nbytes) > (off_t)(skip + len))
+        io.aiocb.aio_nbytes = (skip + len) - recover_pos;
+    }
+  }
+  if (recover_pos == prev_recover_pos) // this should never happen, but if it does break the loop
+    goto Lclear;
+  prev_recover_pos = recover_pos;
+  io.aiocb.aio_offset = recover_pos;
+  ink_assert(ink_aio_read(&io));
+  return EVENT_CONT;
+
+Ldone:{
+    /* if we come back to the starting position, then we don't have to recover anything */
+    if (recover_pos == header->write_pos && recover_wrapped) {
+      SET_HANDLER(&Vol::handle_recover_write_dir);
+      if (is_debug_tag_set("cache_init"))
+        Note("recovery wrapped around. nothing to clear\n");
+      return handle_recover_write_dir(EVENT_IMMEDIATE, 0);
+    }
+
+    recover_pos += EVACUATION_SIZE;   // safely cover the max write size
+    if (recover_pos < header->write_pos && (recover_pos + EVACUATION_SIZE >= header->write_pos)) {
+      Debug("cache_init", "Head Pos: %" PRIu64 ", Rec Pos: %" PRIu64 ", Wrapped:%d", header->write_pos, recover_pos, recover_wrapped);
+      Warning("no valid directory found while recovering '%s', clearing", hash_id);
+      goto Lclear;
+    }
+
+    if (recover_pos > skip + len)
+      recover_pos -= skip + len;
+    // bump sync number so it is different from that in the Doc structs
+    uint32_t next_sync_serial = max_sync_serial + 1;
+    // make that the next sync does not overwrite our good copy!
+    if (!(header->sync_serial & 1) == !(next_sync_serial & 1))
+      next_sync_serial++;
+    // clear effected portion of the cache
+    off_t clear_start = offset_to_vol_offset(this, header->write_pos);
+    off_t clear_end = offset_to_vol_offset(this, recover_pos);
+    if (clear_start <= clear_end)
+      dir_clear_range(clear_start, clear_end, this);
+    else {
+      dir_clear_range(clear_end, DIR_OFFSET_MAX, this);
+      dir_clear_range(1, clear_start, this);
+    }
+    if (is_debug_tag_set("cache_init"))
+      Note("recovery clearing offsets [%" PRIu64 ", %" PRIu64 "] sync_serial %d next %d\n",
+           header->write_pos, recover_pos, header->sync_serial, next_sync_serial);
+    footer->sync_serial = header->sync_serial = next_sync_serial;
+
+    for (int i = 0; i < 3; i++) {
+      AIOCallback *aio = &(init_info->vol_aio[i]);
+      aio->aiocb.aio_fildes = fd;
+      aio->action = this;
+      aio->thread = AIO_CALLBACK_THREAD_ANY;
+      aio->then = (i < 2) ? &(init_info->vol_aio[i + 1]) : 0;
+    }
+    int footerlen = ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter));
+    size_t dirlen = vol_dirlen(this);
+    int B = header->sync_serial & 1;
+    off_t ss = skip + (B ? dirlen : 0);
+
+    init_info->vol_aio[0].aiocb.aio_buf = raw_dir;
+    init_info->vol_aio[0].aiocb.aio_nbytes = footerlen;
+    init_info->vol_aio[0].aiocb.aio_offset = ss;
+    init_info->vol_aio[1].aiocb.aio_buf = raw_dir + footerlen;
+    init_info->vol_aio[1].aiocb.aio_nbytes = dirlen - 2 * footerlen;
+    init_info->vol_aio[1].aiocb.aio_offset = ss + footerlen;
+    init_info->vol_aio[2].aiocb.aio_buf = raw_dir + dirlen - footerlen;
+    init_info->vol_aio[2].aiocb.aio_nbytes = footerlen;
+    init_info->vol_aio[2].aiocb.aio_offset = ss + dirlen - footerlen;
+
+    SET_HANDLER(&Vol::handle_recover_write_dir);
+#if AIO_MODE == AIO_MODE_NATIVE
+    ink_assert(ink_aio_writev(init_info->vol_aio));
+#else
+    ink_assert(ink_aio_write(init_info->vol_aio));
+#endif
+    return EVENT_CONT;
+  }
+
+Lclear:
+  free((char *) io.aiocb.aio_buf);
+  delete init_info;
+  init_info = 0;
+  clear_dir();
+  return EVENT_CONT;
+}
+
+int
+Vol::handle_recover_write_dir(int /* event ATS_UNUSED */ , void * /* data ATS_UNUSED */ )
+{
+  if (io.aiocb.aio_buf)
+    free((char *) io.aiocb.aio_buf);
+  delete init_info;
+  init_info = 0;
+  set_io_not_in_progress();
+  scan_pos = header->write_pos;
+  periodic_scan();
+  SET_HANDLER(&Vol::dir_init_done);
+  return dir_init_done(EVENT_IMMEDIATE, 0);
+}
+
+int
+Vol::handle_header_read(int event, void *data)
+{
+  AIOCallback *op;
+  VolHeaderFooter *hf[4];
+  switch (event) {
+  case AIO_EVENT_DONE:
+    op = (AIOCallback *) data;
+    for (int i = 0; i < 4; i++) {
+      ink_assert(op != 0);
+      hf[i] = (VolHeaderFooter *) (op->aiocb.aio_buf);
+      if ((size_t) op->aio_result != (size_t) op->aiocb.aio_nbytes) {
+        clear_dir();
+        return EVENT_DONE;
+      }
+      op = op->then;
+    }
+
+    io.aiocb.aio_fildes = fd;
+    io.aiocb.aio_nbytes = vol_dirlen(this);
+    io.aiocb.aio_buf = raw_dir;
+    io.action = this;
+    io.thread = AIO_CALLBACK_THREAD_ANY;
+    io.then = 0;
+
+    if (hf[0]->sync_serial == hf[1]->sync_serial &&
+        (hf[0]->sync_serial >= hf[2]->sync_serial || hf[2]->sync_serial != hf[3]->sync_serial)) {
+      SET_HANDLER(&Vol::handle_dir_read);
+      if (is_debug_tag_set("cache_init"))
+        Note("using directory A for '%s'", hash_id);
+      io.aiocb.aio_offset = skip;
+      ink_assert(ink_aio_read(&io));
+    }
+    // try B
+    else if (hf[2]->sync_serial == hf[3]->sync_serial) {
+
+      SET_HANDLER(&Vol::handle_dir_read);
+      if (is_debug_tag_set("cache_init"))
+        Note("using directory B for '%s'", hash_id);
+      io.aiocb.aio_offset = skip + vol_dirlen(this);
+      ink_assert(ink_aio_read(&io));
+    } else {
+      Note("no good directory, clearing '%s'", hash_id);
+      clear_dir();
+      delete init_info;
+      init_info = 0;
+    }
+    return EVENT_DONE;
+  default:
+    ink_assert(!"not reach here");
+  }
+  return EVENT_DONE;
+}
+
+int
+Vol::dir_init_done(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */ )
+{
+  if (!cache->cache_read_done) {
+    eventProcessor.schedule_in(this, HRTIME_MSECONDS(5), ET_CALL);
+    return EVENT_CONT;
+  } else {
+    int vol_no = ink_atomic_increment(&gnvol, 1);
+    ink_assert(!gvol[vol_no]);
+    gvol[vol_no] = this;
+    SET_HANDLER(&Vol::aggWrite);
+    if (fd == -1)
+      cache->vol_initialized(0);
+    else
+      cache->vol_initialized(1);
+    return EVENT_DONE;
+  }
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+int
+InterimCacheVol::recover_data()
+{
+  io.aiocb.aio_fildes = fd;
+  io.action = this;
+  io.thread = AIO_CALLBACK_THREAD_ANY;
+  io.then = 0;
+
+  SET_HANDLER(&InterimCacheVol::handle_recover_from_data);
+  return handle_recover_from_data(EVENT_IMMEDIATE, 0);
+}
+
+int
+InterimCacheVol::handle_recover_from_data(int event, void *data)
+{
+  (void)data;
+  uint32_t got_len = 0;
+  uint32_t max_sync_serial = header->sync_serial;
+  char *s, *e;
+  int ndone, offset;
+
+  if (event == EVENT_IMMEDIATE) {
+    if (header->magic != VOL_MAGIC || header->version.ink_major != CACHE_DB_MAJOR_VERSION) {
+      Warning("bad header in cache directory for '%s', clearing", hash_id);
+      goto Lclear;
+    } else if (header->sync_serial == 0) {
+      io.aiocb.aio_buf = NULL;
+      goto Lfinish;
+    }
+
+    // initialize
+    recover_wrapped = 0;
+    last_sync_serial = 0;
+    last_write_serial = 0;
+    recover_pos = header->last_write_pos;
+    if (recover_pos >= skip + len) {
+      recover_wrapped = 1;
+      recover_pos = start;
+    }
+
+    io.aiocb.aio_buf = (char *)ats_memalign(sysconf(_SC_PAGESIZE), RECOVERY_SIZE);
+    io.aiocb.aio_nbytes = RECOVERY_SIZE;
+    if ((off_t)(recover_pos + io.aiocb.aio_nbytes) > (off_t)(skip + len))
+      io.aiocb.aio_nbytes = (skip + len) - recover_pos;
+
+  } else if (event == AIO_EVENT_DONE) {
+    if ((size_t) io.aiocb.aio_nbytes != (size_t) io.aio_result) {
+      Warning("disk read error on recover '%s', clearing", hash_id);
+      goto Lclear;
+    }
+
+    if (io.aiocb.aio_offset == header->last_write_pos) {
+      uint32_t to_check = header->write_pos - header->last_write_pos;
+      ink_assert(to_check && to_check < (uint32_t)io.aiocb.aio_nbytes);
+      uint32_t done = 0;
+      s = (char *) io.aiocb.aio_buf;
+      while (done < to_check) {
+        Doc *doc = (Doc *) (s + done);
+        if (doc->magic != DOC_MAGIC || doc->write_serial > header->write_serial) {
+          Warning("no valid directory found while recovering '%s', clearing", hash_id);
+          goto Lclear;
+        }
+        done += round_to_approx_size(doc->len);
+        if (doc->sync_serial > last_write_serial)
+          last_sync_serial = doc->sync_serial;
+      }
+      ink_assert(done == to_check);
+
+      got_len = io.aiocb.aio_nbytes - done;
+      recover_pos += io.aiocb.aio_nbytes;
+      s = (char *) io.aiocb.aio_buf + done;
+      e = s + got_len;
+    } else {
+      got_len = io.aiocb.aio_nbytes;
+      recover_pos += io.aiocb.aio_nbytes;
+      s = (char *) io.aiocb.aio_buf;
+      e = s + got_len;
+    }
+  }
+
+  // examine what we got
+  if (got_len) {
+
+    Doc *doc = NULL;
+
+    if (recover_wrapped && start == io.aiocb.aio_offset) {
+      doc = (Doc *) s;
+      if (doc->magic != DOC_MAGIC || doc->write_serial < last_write_serial) {
+        recover_pos = skip + len - EVACUATION_SIZE;
+        goto Ldone;
+      }
+    }
+
+    while (s < e) {
+      doc = (Doc *) s;
+
+      if (doc->magic != DOC_MAGIC || doc->sync_serial != last_sync_serial) {
+
+        if (doc->magic == DOC_MAGIC) {
+          if (doc->sync_serial > header->sync_serial)
+            max_sync_serial = doc->sync_serial;
+
+          if (doc->sync_serial > last_sync_serial && doc->sync_serial <= header->sync_serial + 1) {
+            last_sync_serial = doc->sync_serial;
+            s += round_to_approx_size(doc->len);
+            continue;
+
+          } else if (recover_pos - (e - s) > (skip + len) - AGG_SIZE) {
+            recover_wrapped = 1;
+            recover_pos = start;
+            io.aiocb.aio_nbytes = RECOVERY_SIZE;
+            break;
+          }
+
+          recover_pos -= e - s;
+          goto Ldone;
+
+        } else {
+          recover_pos -= e - s;
+          if (recover_pos > (skip + len) - AGG_SIZE) {
+            recover_wrapped = 1;
+            recover_pos = start;
+            io.aiocb.aio_nbytes = RECOVERY_SIZE;
+            break;
+          }
+
+          goto Ldone;
+        }
+      }
+
+      last_write_serial = doc->write_serial;
+      s += round_to_approx_size(doc->len);
+    }
+
+    if (s >= e) {
+
+      if (s > e)
+        s -= round_to_approx_size(doc->len);
+
+      recover_pos -= e - s;
+      if (recover_pos >= skip + len)
+        recover_pos = start;
+
+      io.aiocb.aio_nbytes = RECOVERY_SIZE;
+      if ((off_t)(recover_pos + io.aiocb.aio_nbytes) > (off_t)(skip + len))
+        io.aiocb.aio_nbytes = (skip + len) - recover_pos;
+    }
+  }
+
+  if (recover_pos == prev_recover_pos)
+    goto Lclear;
+
+  prev_recover_pos = recover_pos;
+  io.aiocb.aio_offset = recover_pos;
+  ink_assert(ink_aio_read(&io));
+  return EVENT_CONT;
+
+Ldone: {
+
+    if (recover_pos == header->write_pos && recover_wrapped) {
+      goto Lfinish;
+    }
+
+    recover_pos += EVACUATION_SIZE;
+    if (recover_pos < header->write_pos && (recover_pos + EVACUATION_SIZE >= header->write_pos)) {
+      Debug("cache_init", "Head Pos: %" PRIu64 ", Rec Pos: %" PRIu64 ", Wrapped:%d", header->write_pos, recover_pos, recover_wrapped);
+      Warning("no valid directory found while recovering '%s', clearing", hash_id);
+      goto Lclear;
+    }
+
+    if (recover_pos > skip + len)
+      recover_pos -= skip + len;
+
+    uint32_t next_sync_serial = max_sync_serial + 1;
+    if (!(header->sync_serial & 1) == !(next_sync_serial & 1))
+      next_sync_serial++;
+
+    off_t clear_start = offset_to_vol_offset(this, header->write_pos);
+    off_t clear_end = offset_to_vol_offset(this, recover_pos);
+
+    if (clear_start <= clear_end)
+      dir_clean_range_interimvol(clear_start, clear_end, this);
+    else {
+      dir_clean_range_interimvol(clear_end, DIR_OFFSET_MAX, this);
+      dir_clean_range_interimvol(1, clear_start, this);
+    }
+
+    header->sync_serial = next_sync_serial;
+
+    goto Lfinish;
+  }
+
+Lclear:
+
+  interimvol_clear_init(this);
+  offset = this - vol->interim_vols;
+  clear_interimvol_dir(vol, offset);          // remove this interimvol dir
+
+Lfinish:
+
+  free((char*)io.aiocb.aio_buf);
+  io.aiocb.aio_buf = NULL;
+
+  set_io_not_in_progress();
+
+  ndone = ink_atomic_increment(&vol->interim_done, 1);
+  if (ndone == vol->num_interim_vols - 1) {         // all interim finished
+    return vol->recover_data();
+  }
+
+  return EVENT_CONT;
+}
+#endif
+
+// explicit pair for random table in build_vol_hash_table
+struct rtable_pair {
+  unsigned int rval; ///< relative value, used to sort.
+  unsigned int idx; ///< volume mapping table index.
+};
+
+// comparison operator for random table in build_vol_hash_table
+// sorts based on the randomly assigned rval
+static int
+cmprtable(const void *aa, const void *bb) {
+  rtable_pair *a = (rtable_pair*)aa;
+  rtable_pair *b = (rtable_pair*)bb;
+  if (a->rval < b->rval) return -1;
+  if (a->rval > b->rval) return 1;
+  return 0;
+}
+
+void
+build_vol_hash_table(CacheHostRecord *cp)
+{
+  int num_vols = cp->num_vols;
+  unsigned int *mapping = (unsigned int *)ats_malloc(sizeof(unsigned int) * num_vols);
+  Vol **p = (Vol **)ats_malloc(sizeof(Vol *) * num_vols);
+
+  memset(mapping, 0, num_vols * sizeof(unsigned int));
+  memset(p, 0, num_vols * sizeof(Vol *));
+  uint64_t total = 0;
+  int bad_vols = 0;
+  int map = 0;
+  uint64_t used = 0;
+  // initialize number of elements per vol
+  for (int i = 0; i < num_vols; i++) {
+    if (DISK_BAD(cp->vols[i]->disk)) {
+      bad_vols++;
+      continue;
+    }
+    mapping[map] = i;
+    p[map++] = cp->vols[i];
+    total += (cp->vols[i]->len >> STORE_BLOCK_SHIFT);
+  }
+
+  num_vols -= bad_vols;
+
+  if (!num_vols) {
+    // all the disks are corrupt,
+    if (cp->vol_hash_table) {
+      new_Freer(cp->vol_hash_table, CACHE_MEM_FREE_TIMEOUT);
+    }
+    cp->vol_hash_table = NULL;
+    ats_free(mapping);
+    ats_free(p);
+    return;
+  }
+
+  unsigned int *forvol = (unsigned int *) ats_malloc(sizeof(unsigned int) * num_vols);
+  unsigned int *gotvol = (unsigned int *) ats_malloc(sizeof(unsigned int) * num_vols);
+  unsigned int *rnd = (unsigned int *) ats_malloc(sizeof(unsigned int) * num_vols);
+  unsigned short *ttable = (unsigned short *)ats_malloc(sizeof(unsigned short) * VOL_HASH_TABLE_SIZE);
+  unsigned short *old_table;
+  unsigned int *rtable_entries = (unsigned int *) ats_malloc(sizeof(unsigned int) * num_vols);
+  unsigned int rtable_size = 0;
+
+  // estimate allocation
+  for (int i = 0; i < num_vols; i++) {
+    forvol[i] = (VOL_HASH_TABLE_SIZE * (p[i]->len >> STORE_BLOCK_SHIFT)) / total;
+    used += forvol[i];
+    rtable_entries[i] = p[i]->len / VOL_HASH_ALLOC_SIZE;
+    rtable_size += rtable_entries[i];
+    gotvol[i] = 0;
+  }
+  // spread around the excess
+  int extra = VOL_HASH_TABLE_SIZE - used;
+  for (int i = 0; i < extra; i++)
+    forvol[i % num_vols]++;
+  // seed random number generator
+  for (int i = 0; i < num_vols; i++) {
+    uint64_t x = p[i]->hash_id_md5.fold();
+    rnd[i] = (unsigned int) x;
+  }
+  // initialize table to "empty"
+  for (int i = 0; i < VOL_HASH_TABLE_SIZE; i++)
+    ttable[i] = VOL_HASH_EMPTY;
+  // generate random numbers proportaion to allocation
+  rtable_pair *rtable = (rtable_pair *)ats_malloc(sizeof(rtable_pair) * rtable_size);
+  int rindex = 0;
+  for (int i = 0; i < num_vols; i++)
+    for (int j = 0; j < (int)rtable_entries[i]; j++) {
+      rtable[rindex].rval = next_rand(&rnd[i]);
+      rtable[rindex].idx = i;
+      rindex++;
+    }
+  ink_assert(rindex == (int)rtable_size);
+  // sort (rand #, vol $ pairs)
+  qsort(rtable, rtable_size, sizeof(rtable_pair), cmprtable);
+  unsigned int width = (1LL << 32) / VOL_HASH_TABLE_SIZE;
+  unsigned int pos = width / 2;  // target position to allocate
+  // select vol with closest random number for each bucket
+  int i = 0;  // index moving through the random numbers
+  for (int j = 0; j < VOL_HASH_TABLE_SIZE; j++) {
+    pos = width / 2 + j * width;  // position to select closest to
+    while (pos > rtable[i].rval && i < (int)rtable_size - 1) i++;
+    ttable[j] = mapping[rtable[i].idx];
+    gotvol[rtable[i].idx]++;
+  }
+  for (int i = 0; i < num_vols; i++) {
+    Debug("cache_init", "build_vol_hash_table index %d mapped to %d requested %d got %d", i, mapping[i], forvol[i], gotvol[i]);
+  }
+  // install new table
+  if (0 != (old_table = ink_atomic_swap(&(cp->vol_hash_table), ttable)))
+    new_Freer(old_table, CACHE_MEM_FREE_TIMEOUT);
+  ats_free(mapping);
+  ats_free(p);
+  ats_free(forvol);
+  ats_free(gotvol);
+  ats_free(rnd);
+  ats_free(rtable_entries);
+  ats_free(rtable);
+}
+
+void
+Cache::vol_initialized(bool result) {
+  if (result)
+    ink_atomic_increment(&total_good_nvol, 1);
+  if (total_nvol == ink_atomic_increment(&total_initialized_vol, 1) + 1)
+    open_done();
+}
+
+/** Set the state of a disk programmatically.
+*/
+bool
+CacheProcessor::mark_storage_offline( CacheDisk* d ///< Target disk
+  ) {
+  bool zret; // indicates whether there's any online storage left.
+  int p;
+  uint64_t total_bytes_delete = 0;
+  uint64_t total_dir_delete = 0;
+  uint64_t used_dir_delete = 0;
+
+  if (!DISK_BAD(d)) SET_DISK_BAD(d);
+
+  for (p = 0; p < gnvol; p++) {
+    if (d->fd == gvol[p]->fd) {
+      total_dir_delete += gvol[p]->buckets * gvol[p]->segments * DIR_DEPTH;
+      used_dir_delete += dir_entries_used(gvol[p]);
+      total_bytes_delete += gvol[p]->len - vol_dirlen(gvol[p]);
+    }
+  }
+
+  RecIncrGlobalRawStat(cache_rsb, cache_bytes_total_stat, -total_bytes_delete);
+  RecIncrGlobalRawStat(cache_rsb, cache_direntries_total_stat, -total_dir_delete);
+  RecIncrGlobalRawStat(cache_rsb, cache_direntries_used_stat, -used_dir_delete);
+
+  if (theCache) {
+    rebuild_host_table(theCache);
+  }
+  if (theStreamCache) {
+    rebuild_host_table(theStreamCache);
+  }
+
+  zret = this->has_online_storage();
+  if (!zret) {
+    Warning("All storage devices offline, cache disabled");
+    CacheProcessor::cache_ready = 0;
+  } else { // check cache types specifically
+    if (theCache && !theCache->hosttable->gen_host_rec.vol_hash_table) {
+      unsigned int caches_ready = 0;
+      caches_ready = caches_ready | (1 << CACHE_FRAG_TYPE_HTTP);
+      caches_ready = caches_ready | (1 << CACHE_FRAG_TYPE_NONE);
+      caches_ready = ~caches_ready;
+      CacheProcessor::cache_ready &= caches_ready;
+      Warning("all volumes for http cache are corrupt, http cache disabled");
+    }
+    if (theStreamCache && !theStreamCache->hosttable->gen_host_rec.vol_hash_table) {
+      unsigned int caches_ready = 0;
+      caches_ready = caches_ready | (1 << CACHE_FRAG_TYPE_RTSP);
+      caches_ready = ~caches_ready;
+      CacheProcessor::cache_ready &= caches_ready;
+      Warning("all volumes for mixt cache are corrupt, mixt cache disabled");
+    }
+  }
+
+  return zret;
+}
+
+bool
+CacheProcessor::has_online_storage() const {
+  CacheDisk** dptr = gdisks;
+  for (int disk_no = 0 ; disk_no < gndisks ; ++disk_no, ++dptr) {
+    if (!DISK_BAD(*dptr)) return true;
+  }
+  return false;
+}
+
+int
+AIO_Callback_handler::handle_disk_failure(int /* event ATS_UNUSED */, void *data) {
+  /* search for the matching file descriptor */
+  if (!CacheProcessor::cache_ready)
+    return EVENT_DONE;
+  int disk_no = 0;
+  AIOCallback *cb = (AIOCallback *) data;
+#if TS_USE_INTERIM_CACHE == 1
+  for (; disk_no < gn_interim_disks; disk_no++) {
+    CacheDisk *d = g_interim_disks[disk_no];
+
+    if (d->fd == cb->aiocb.aio_fildes) {
+      char message[256];
+
+      d->num_errors++;
+      if (!DISK_BAD(d)) {
+        snprintf(message, sizeof(message), "Error accessing Disk %s [%d/%d]", d->path, d->num_errors, cache_config_max_disk_errors);
+        Warning("%s", message);
+        REC_SignalManager(REC_SIGNAL_CACHE_WARNING, message);
+      } else if (!DISK_BAD_SIGNALLED(d)) {
+        snprintf(message, sizeof(message),
+                 "too many errors [%d] accessing disk %s: declaring disk bad", d->num_errors, d->path);
+        Warning("%s", message);
+        REC_SignalManager(REC_SIGNAL_CACHE_ERROR, message);
+        good_interim_disks--;
+      }
+    }
+  }
+#endif
+
+  for (; disk_no < gndisks; disk_no++) {
+    CacheDisk *d = gdisks[disk_no];
+
+    if (d->fd == cb->aiocb.aio_fildes) {
+      char message[256];
+      d->num_errors++;
+
+      if (!DISK_BAD(d)) {
+        snprintf(message, sizeof(message), "Error accessing Disk %s [%d/%d]", d->path, d->num_errors, cache_config_max_disk_errors);
+        Warning("%s", message);
+        REC_SignalManager(REC_SIGNAL_CACHE_WARNING, message);
+      } else if (!DISK_BAD_SIGNALLED(d)) {
+        snprintf(message, sizeof(message), "too many errors accessing disk %s [%d/%d]: declaring disk bad", d->path, d->num_errors, cache_config_max_disk_errors);
+        Warning("%s", message);
+        REC_SignalManager(REC_SIGNAL_CACHE_ERROR, message);
+        cacheProcessor.mark_storage_offline(d); // take it out of service
+      }
+      break;
+    }
+  }
+
+  delete cb;
+  return EVENT_DONE;
+}
+
+int
+Cache::open_done() {
+  Action *register_ShowCache(Continuation * c, HTTPHdr * h);
+  Action *register_ShowCacheInternal(Continuation *c, HTTPHdr *h);
+  statPagesManager.register_http("cache", register_ShowCache);
+  statPagesManager.register_http("cache-internal", register_ShowCacheInternal);
+  if (total_good_nvol == 0) {
+    ready = CACHE_INIT_FAILED;
+    cacheProcessor.cacheInitialized();
+    return 0;
+  }
+
+  hosttable = new CacheHostTable(this, scheme);
+  hosttable->register_config_callback(&hosttable);
+
+  if (hosttable->gen_host_rec.num_cachevols == 0)
+    ready = CACHE_INIT_FAILED;
+  else
+    ready = CACHE_INITIALIZED;
+  cacheProcessor.cacheInitialized();
+
+  return 0;
+}
+
+int
+Cache::open(bool clear, bool /* fix ATS_UNUSED */) {
+  int i;
+  off_t blocks = 0;
+  cache_read_done = 0;
+  total_initialized_vol = 0;
+  total_nvol = 0;
+  total_good_nvol = 0;
+
+  REC_EstablishStaticConfigInt32(cache_config_min_average_object_size, "proxy.config.cache.min_average_object_size");
+  Debug("cache_init", "Cache::open - proxy.config.cache.min_average_object_size = %d",
+        (int)cache_config_min_average_object_size);
+
+  CacheVol *cp = cp_list.head;
+  for (; cp; cp = cp->link.next) {
+    if (cp->scheme == scheme) {
+      cp->vols = (Vol **)ats_malloc(cp->num_vols * sizeof(Vol *));
+      int vol_no = 0;
+      for (i = 0; i < gndisks; i++) {
+        if (cp->disk_vols[i] && !DISK_BAD(cp->disk_vols[i]->disk)) {
+          DiskVolBlockQueue *q = cp->disk_vols[i]->dpb_queue.head;
+          for (; q; q = q->link.next) {
+            cp->vols[vol_no] = new Vol();
+            CacheDisk *d = cp->disk_vols[i]->disk;
+            cp->vols[vol_no]->disk = d;
+            cp->vols[vol_no]->fd = d->fd;
+            cp->vols[vol_no]->cache = this;
+            cp->vols[vol_no]->cache_vol = cp;
+            blocks = q->b->len;
+
+            bool vol_clear = clear || d->cleared || q->new_block;
+#if AIO_MODE == AIO_MODE_NATIVE
+            eventProcessor.schedule_imm(new VolInit(cp->vols[vol_no], d->path, blocks, q->b->offset, vol_clear));
+#else
+            cp->vols[vol_no]->init(d->path, blocks, q->b->offset, vol_clear);
+#endif
+            vol_no++;
+            cache_size += blocks;
+          }
+        }
+      }
+      total_nvol += vol_no;
+    }
+  }
+  if (total_nvol == 0)
+    return open_done();
+  cache_read_done = 1;
+  return 0;
+}
+
+int
+Cache::close() {
+  return -1;
+}
+
+int
+CacheVC::dead(int /* event ATS_UNUSED */, Event * /*e ATS_UNUSED */) {
+  ink_assert(0);
+  return EVENT_DONE;
+}
+
+bool
+CacheVC::is_pread_capable()
+{
+  return !f.read_from_writer_called;
+}
+
+#define STORE_COLLISION 1
+
+#ifdef HTTP_CACHE
+static void unmarshal_helper(Doc *doc, Ptr<IOBufferData> &buf, int &okay) {
+  char *tmp = doc->hdr();
+  int len = doc->hlen;
+  while (len > 0) {
+    int r = HTTPInfo::unmarshal(tmp, len, buf._ptr());
+    if (r < 0) {
+      ink_assert(!"CacheVC::handleReadDone unmarshal failed");
+      okay = 0;
+      break;
+    }
+    len -= r;
+    tmp += r;
+  }
+}
+#endif
+
+int
+CacheVC::handleReadDone(int event, Event *e)
+{
+  cancel_trigger();
+  ink_assert(this_ethread() == mutex->thread_holding);
+
+  Doc *doc = NULL;
+  if (event == AIO_EVENT_DONE)
+    set_io_not_in_progress();
+  else
+    if (is_io_in_progress())
+      return EVENT_CONT;
+  {
+    MUTEX_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_SCHED_LOCK_RETRY();
+    if ((!dir_valid(vol, &dir)) || (!io.ok())) {
+      if (!io.ok()) {
+        Debug("cache_disk_error", "Read error on disk %s\n \
+	    read range : [%" PRIu64 " - %" PRIu64 " bytes]  [%" PRIu64 " - %" PRIu64 " blocks] \n",
+              vol->hash_id, (uint64_t)io.aiocb.aio_offset, (uint64_t)io.aiocb.aio_offset + io.aiocb.aio_nbytes,
+              (uint64_t)io.aiocb.aio_offset / 512, (uint64_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) / 512);
+      }
+      goto Ldone;
+    }
+
+    ink_assert(vol->mutex->nthread_holding < 1000);
+    ink_assert(((Doc *) buf->data())->magic == DOC_MAGIC);
+#ifdef VERIFY_JTEST_DATA
+    char xx[500];
+    if (read_key && *read_key == ((Doc *) buf->data())->key && request.valid() && !dir_head(&dir) && !vio.ndone) {
+      int ib = 0, xd = 0;
+      request.url_get()->print(xx, 500, &ib, &xd);
+      char *x = xx;
+      for (int q = 0; q < 3; q++)
+        x = strchr(x + 1, '/');
+      ink_assert(!memcmp(((Doc *) buf->data())->data(), x, ib - (x - xx)));
+    }
+#endif
+    doc = (Doc *) buf->data();
+
+    if (is_debug_tag_set("cache_read")) {
+      char xt[33];
+      Debug("cache_read",
+            "Read complete on fragment %s. Length: data payload=%d this fragment=%d total doc=%" PRId64" prefix=%d",
+            doc->key.toHexStr(xt), doc->data_len(), doc->len, doc->total_len, doc->prefix_len());
+    }
+
+    // put into ram cache?
+    if (io.ok() && ((doc->first_key == *read_key) || (doc->key == *read_key) || STORE_COLLISION) &&
+        doc->magic == DOC_MAGIC) {
+      int okay = 1;
+      if (!f.doc_from_ram_cache)
+        f.not_from_ram_cache = 1;
+      if (cache_config_enable_checksum && doc->checksum != DOC_NO_CHECKSUM) {
+        // verify that the checksum matches
+        uint32_t checksum = 0;
+        for (char *b = doc->hdr(); b < (char *) doc + doc->len; b++)
+          checksum += *b;
+        ink_assert(checksum == doc->checksum);
+        if (checksum != doc->checksum) {
+          Note("cache: checksum error for [%" PRIu64 " %" PRIu64 "] len %d, hlen %d, disk %s, offset %" PRIu64 " size %zu",
+               doc->first_key.b[0], doc->first_key.b[1],
+               doc->len, doc->hlen, vol->path, (uint64_t)io.aiocb.aio_offset, (size_t)io.aiocb.aio_nbytes);
+          doc->magic = DOC_CORRUPT;
+          okay = 0;
+        }
+      }
+#if TS_USE_INTERIM_CACHE == 1
+    ink_assert(vol->num_interim_vols >= good_interim_disks);
+    if (mts && !f.doc_from_ram_cache) {
+      int indx;
+      do {
+        indx = vol->interim_index++ % vol->num_interim_vols;
+      } while (good_interim_disks > 0 && DISK_BAD(vol->interim_vols[indx].disk));
+
+      if (good_interim_disks) {
+        if (f.write_into_interim) {
+          mts->interim_vol = interim_vol = &vol->interim_vols[indx];
+          mts->agg_len = interim_vol->round_to_approx_size(doc->len);
+          if (vol->sector_size != interim_vol->sector_size) {
+            dir_set_approx_size(&mts->dir, mts->agg_len);
+          }
+        }
+        if (f.transistor) {
+          mts->interim_vol = interim_vol;
+          mts->agg_len = interim_vol->round_to_approx_size(doc->len);
+          ink_assert(mts->agg_len == dir_approx_size(&mts->dir));
+        }
+
+        if (!interim_vol->is_io_in_progress()) {
+          mts->buf = buf;
+          mts->copy = false;
+          interim_vol->agg.enqueue(mts);
+          interim_vol->aggWrite(event, e);
+        } else {
+          mts->buf = new_IOBufferData(iobuffer_size_to_index(mts->agg_len, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+          mts->copy = true;
+          memcpy(mts->buf->data(), buf->data(), doc->len);
+          interim_vol->agg.enqueue(mts);
+        }
+      } else {
+        vol->set_migrate_failed(mts);
+        migrateToInterimCacheAllocator.free(mts);
+      }
+      mts = NULL;
+    }
+#else
+    (void)e; // Avoid compiler warnings
+#endif
+      bool http_copy_hdr = false;
+#ifdef HTTP_CACHE
+      http_copy_hdr = cache_config_ram_cache_compress && !f.doc_from_ram_cache &&
+        doc->ftype == CACHE_FRAG_TYPE_HTTP && doc->hlen;
+      // If http doc we need to unmarshal the headers before putting in the ram cache
+      // unless it could be compressed
+      if (!http_copy_hdr && doc->ftype == CACHE_FRAG_TYPE_HTTP && doc->hlen && okay)
+        unmarshal_helper(doc, buf, okay);
+#endif
+      // Put the request in the ram cache only if its a open_read or lookup
+      if (vio.op == VIO::READ && okay) {
+        bool cutoff_check;
+        // cutoff_check :
+        // doc_len == 0 for the first fragment (it is set from the vector)
+        //                The decision on the first fragment is based on
+        //                doc->total_len
+        // After that, the decision is based of doc_len (doc_len != 0)
+        // (cache_config_ram_cache_cutoff == 0) : no cutoffs
+        cutoff_check = ((!doc_len && (int64_t)doc->total_len < cache_config_ram_cache_cutoff)
+                        || (doc_len && (int64_t)doc_len < cache_config_ram_cache_cutoff)
+                        || !cache_config_ram_cache_cutoff);
+        if (cutoff_check && !f.doc_from_ram_cache) {
+#if TS_USE_INTERIM_CACHE == 1
+          if (!f.ram_fixup) {
+            uint64_t o = dir_get_offset(&dir);
+            vol->ram_cache->put(read_key, buf, doc->len, http_copy_hdr, (uint32_t)(o >> 32), (uint32_t)o);
+          } else {
+            vol->ram_cache->put(read_key, buf, doc->len, http_copy_hdr, (uint32_t)(dir_off>>32), (uint32_t)dir_off);
+          }
+#else
+          uint64_t o = dir_offset(&dir);
+          vol->ram_cache->put(read_key, buf, doc->len, http_copy_hdr, (uint32_t)(o >> 32), (uint32_t)o);
+#endif
+        }
+        if (!doc_len) {
+          // keep a pointer to it. In case the state machine decides to
+          // update this document, we don't have to read it back in memory
+          // again
+          vol->first_fragment_key = *read_key;
+#if TS_USE_INTERIM_CACHE == 1
+          if (!f.ram_fixup)
+            vol->first_fragment_offset = dir_get_offset(&dir);
+          else
+            vol->first_fragment_offset = dir_off;
+#else
+          vol->first_fragment_offset = dir_offset(&dir);
+#endif
+          vol->first_fragment_data = buf;
+        }
+      }                           // end VIO::READ check
+#ifdef HTTP_CACHE
+      // If it could be compressed, unmarshal after
+      if (http_copy_hdr && doc->ftype == CACHE_FRAG_TYPE_HTTP && doc->hlen && okay)
+        unmarshal_helper(doc, buf, okay);
+#endif
+    }                             // end io.ok() check
+#if TS_USE_INTERIM_CACHE == 1
+Ldone:
+    if (mts) {
+      vol->set_migrate_failed(mts);
+      migrateToInterimCacheAllocator.free(mts);
+      mts = NULL;
+    }
+  }
+#else
+  }
+Ldone:
+#endif
+  POP_HANDLER;
+  return handleEvent(AIO_EVENT_DONE, 0);
+}
+
+
+int
+CacheVC::handleRead(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  cancel_trigger();
+
+  f.doc_from_ram_cache = false;
+
+  // check ram cache
+  ink_assert(vol->mutex->thread_holding == this_ethread());
+#if TS_USE_INTERIM_CACHE == 1
+  uint64_t o = dir_get_offset(&dir);
+  if(f.read_from_interim && mts && mts->rewrite)
+    goto LinterimRead;
+#else
+  int64_t o = dir_offset(&dir);
+#endif
+  if (vol->ram_cache->get(read_key, &buf, (uint32_t)(o >> 32), (uint32_t)o))
+    goto LramHit;
+
+  // check if it was read in the last open_read call
+#if TS_USE_INTERIM_CACHE == 1
+  if (*read_key == vol->first_fragment_key && dir_get_offset(&dir) == vol->first_fragment_offset) {
+#else
+  if (*read_key == vol->first_fragment_key && dir_offset(&dir) == vol->first_fragment_offset) {
+#endif
+    buf = vol->first_fragment_data;
+    goto LmemHit;
+  }
+#if TS_USE_INTERIM_CACHE == 1
+LinterimRead:
+  if (f.read_from_interim) {
+    if (dir_agg_buf_valid(interim_vol, &dir)) {
+      int interim_agg_offset = vol_offset(interim_vol, &dir) - interim_vol->header->write_pos;
+      buf = new_IOBufferData(iobuffer_size_to_index(io.aiocb.aio_nbytes, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+      ink_assert((interim_agg_offset + io.aiocb.aio_nbytes) <= (unsigned) interim_vol->agg_buf_pos);
+      char *doc = buf->data();
+      char *agg = interim_vol->agg_buffer + interim_agg_offset;
+      memcpy(doc, agg, io.aiocb.aio_nbytes);
+      io.aio_result = io.aiocb.aio_nbytes;
+      SET_HANDLER(&CacheVC::handleReadDone);
+      return EVENT_RETURN;
+    }
+
+    io.aiocb.aio_fildes = interim_vol->fd;
+    io.aiocb.aio_offset = vol_offset(interim_vol, &dir);
+    if ((off_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) > (off_t)(interim_vol->skip + interim_vol->len))
+      io.aiocb.aio_nbytes = interim_vol->skip + interim_vol->len - io.aiocb.aio_offset;
+    buf = new_IOBufferData(iobuffer_size_to_index(io.aiocb.aio_nbytes, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+    io.aiocb.aio_buf = buf->data();
+    io.action = this;
+    io.thread = mutex->thread_holding->tt == DEDICATED ? AIO_CALLBACK_THREAD_ANY : mutex->thread_holding;
+
+    SET_HANDLER(&CacheVC::handleReadDone);
+    ink_assert(ink_aio_read(&io) >= 0);
+    CACHE_DEBUG_INCREMENT_DYN_STAT(cache_pread_count_stat);
+    return EVENT_CONT;
+  }
+#endif
+  // see if its in the aggregation buffer
+  if (dir_agg_buf_valid(vol, &dir)) {
+    int agg_offset = vol_offset(vol, &dir) - vol->header->write_pos;
+    buf = new_IOBufferData(iobuffer_size_to_index(io.aiocb.aio_nbytes, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+    ink_assert((agg_offset + io.aiocb.aio_nbytes) <= (unsigned) vol->agg_buf_pos);
+    char *doc = buf->data();
+    char *agg = vol->agg_buffer + agg_offset;
+    memcpy(doc, agg, io.aiocb.aio_nbytes);
+    io.aio_result = io.aiocb.aio_nbytes;
+    SET_HANDLER(&CacheVC::handleReadDone);
+    return EVENT_RETURN;
+  }
+
+  io.aiocb.aio_fildes = vol->fd;
+  io.aiocb.aio_offset = vol_offset(vol, &dir);
+  if ((off_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) > (off_t)(vol->skip + vol->len))
+    io.aiocb.aio_nbytes = vol->skip + vol->len - io.aiocb.aio_offset;
+  buf = new_IOBufferData(iobuffer_size_to_index(io.aiocb.aio_nbytes, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+  io.aiocb.aio_buf = buf->data();
+  io.action = this;
+  io.thread = mutex->thread_holding->tt == DEDICATED ? AIO_CALLBACK_THREAD_ANY : mutex->thread_holding;
+  SET_HANDLER(&CacheVC::handleReadDone);
+  ink_assert(ink_aio_read(&io) >= 0);
+  CACHE_DEBUG_INCREMENT_DYN_STAT(cache_pread_count_stat);
+  return EVENT_CONT;
+
+LramHit: {
+    f.doc_from_ram_cache = true;
+    io.aio_result = io.aiocb.aio_nbytes;
+    Doc *doc = (Doc*)buf->data();
+    if (cache_config_ram_cache_compress && doc->ftype == CACHE_FRAG_TYPE_HTTP && doc->hlen) {
+      SET_HANDLER(&CacheVC::handleReadDone);
+      return EVENT_RETURN;
+    }
+  }
+LmemHit:
+  f.doc_from_ram_cache = true;
+  io.aio_result = io.aiocb.aio_nbytes;
+#if TS_USE_INTERIM_CACHE == 1
+  if (mts) { // for hit from memory, not migrate
+    vol->set_migrate_failed(mts);
+    migrateToInterimCacheAllocator.free(mts);
+    mts = NULL;
+  }
+#endif
+  POP_HANDLER;
+  return EVENT_RETURN; // allow the caller to release the volume lock
+}
+
+Action *
+Cache::lookup(Continuation *cont, CacheKey *key, CacheFragType type, char *hostname, int host_len)
+{
+  if (!CacheProcessor::IsCacheReady(type)) {
+    cont->handleEvent(CACHE_EVENT_LOOKUP_FAILED, 0);
+    return ACTION_RESULT_DONE;
+  }
+
+  Vol *vol = key_to_vol(key, hostname, host_len);
+  ProxyMutex *mutex = cont->mutex;
+  CacheVC *c = new_CacheVC(cont);
+  SET_CONTINUATION_HANDLER(c, &CacheVC::openReadStartHead);
+  c->vio.op = VIO::READ;
+  c->base_stat = cache_lookup_active_stat;
+  CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+  c->first_key = c->key = *key;
+  c->frag_type = type;
+  c->f.lookup = 1;
+  c->vol = vol;
+  c->last_collision = NULL;
+
+  if (c->handleEvent(EVENT_INTERVAL, 0) == EVENT_CONT)
+    return &c->_action;
+  else
+    return ACTION_RESULT_DONE;
+}
+
+Action *
+Cache::lookup(Continuation *cont, CacheURL *url, CacheFragType type)
+{
+  INK_MD5 md5;
+
+  url->MD5_get(&md5);
+  int len = 0;
+  const char *hostname = url->host_get(&len);
+  return lookup(cont, &md5, type, (char *) hostname, len);
+}
+
+int
+CacheVC::removeEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  set_io_not_in_progress();
+  {
+    MUTEX_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_SCHED_LOCK_RETRY();
+    if (_action.cancelled) {
+      if (od) {
+        vol->close_write(this);
+        od = 0;
+      }
+      goto Lfree;
+    }
+    if (!f.remove_aborted_writers) {
+      if (vol->open_write(this, true, 1)) {
+        // writer  exists
+        ink_assert(od = vol->open_read(&key));
+        od->dont_update_directory = 1;
+        od = NULL;
+      } else {
+        od->dont_update_directory = 1;
+      }
+      f.remove_aborted_writers = 1;
+    }
+  Lread:
+    SET_HANDLER(&CacheVC::removeEvent);
+    if (!buf)
+      goto Lcollision;
+    if (!dir_valid(vol, &dir)) {
+      last_collision = NULL;
+      goto Lcollision;
+    }
+    // check read completed correct FIXME: remove bad vols
+    if ((size_t) io.aio_result != (size_t) io.aiocb.aio_nbytes)
+      goto Ldone;
+    {
+      // verify that this is our document
+      Doc *doc = (Doc *) buf->data();
+      /* should be first_key not key..right?? */
+      if (doc->first_key == key) {
+        ink_assert(doc->magic == DOC_MAGIC);
+        if (dir_delete(&key, vol, &dir) > 0) {
+          if (od)
+            vol->close_write(this);
+          od = NULL;
+          goto Lremoved;
+        }
+        goto Ldone;
+      }
+    }
+  Lcollision:
+    // check for collision
+    if (dir_probe(&key, vol, &dir, &last_collision) > 0) {
+#if TS_USE_INTERIM_CACHE == 1
+      if (dir_ininterim(&dir)) {
+        dir_delete(&key, vol, &dir);
+        last_collision = NULL;
+        goto Lcollision;
+      }
+#endif
+      int ret = do_read_call(&key);
+      if (ret == EVENT_RETURN)
+        goto Lread;
+      return ret;
+    }
+  Ldone:
+    CACHE_INCREMENT_DYN_STAT(cache_remove_failure_stat);
+    if (od)
+      vol->close_write(this);
+  }
+  ink_assert(!vol || this_ethread() != vol->mutex->thread_holding);
+  _action.continuation->handleEvent(CACHE_EVENT_REMOVE_FAILED, (void *) -ECACHE_NO_DOC);
+  goto Lfree;
+Lremoved:
+  _action.continuation->handleEvent(CACHE_EVENT_REMOVE, 0);
+Lfree:
+  return free_CacheVC(this);
+}
+
+Action *
+Cache::remove(Continuation *cont, CacheKey *key, CacheFragType type, bool /* user_agents ATS_UNUSED */,
+              bool /* link ATS_UNUSED */, char *hostname, int host_len)
+{
+  if (!CacheProcessor::IsCacheReady(type)) {
+    if (cont)
+      cont->handleEvent(CACHE_EVENT_REMOVE_FAILED, 0);
+    return ACTION_RESULT_DONE;
+  }
+
+  ink_assert(this);
+
+  Ptr<ProxyMutex> mutex;
+  if (!cont)
+    cont = new_CacheRemoveCont();
+
+  CACHE_TRY_LOCK(lock, cont->mutex, this_ethread());
+  ink_assert(lock);
+  Vol *vol = key_to_vol(key, hostname, host_len);
+  // coverity[var_decl]
+  Dir result;
+  dir_clear(&result);           // initialized here, set result empty so we can recognize missed lock
+  mutex = cont->mutex;
+
+  CacheVC *c = new_CacheVC(cont);
+  c->vio.op = VIO::NONE;
+  c->frag_type = type;
+  c->base_stat = cache_remove_active_stat;
+  CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+  c->first_key = c->key = *key;
+  c->vol = vol;
+  c->dir = result;
+  c->f.remove = 1;
+
+  SET_CONTINUATION_HANDLER(c, &CacheVC::removeEvent);
+  int ret = c->removeEvent(EVENT_IMMEDIATE, 0);
+  if (ret == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  else
+    return &c->_action;
+}
+// CacheVConnection
+
+CacheVConnection::CacheVConnection()
+  : VConnection(NULL)
+{ }
+
+
+void
+cplist_init()
+{
+  cp_list_len = 0;
+  for (int i = 0; i < gndisks; i++) {
+    CacheDisk *d = gdisks[i];
+    DiskVol **dp = d->disk_vols;
+    for (unsigned int j = 0; j < d->header->num_volumes; j++) {
+      ink_assert(dp[j]->dpb_queue.head);
+      CacheVol *p = cp_list.head;
+      while (p) {
+        if (p->vol_number == dp[j]->vol_number) {
+          ink_assert(p->scheme == (int) dp[j]->dpb_queue.head->b->type);
+          p->size += dp[j]->size;
+          p->num_vols += dp[j]->num_volblocks;
+          p->disk_vols[i] = dp[j];
+          break;
+        }
+        p = p->link.next;
+      }
+      if (!p) {
+        // did not find a volume in the cache vol list...create
+        // a new one
+        CacheVol *new_p = new CacheVol();
+        new_p->vol_number = dp[j]->vol_number;
+        new_p->num_vols = dp[j]->num_volblocks;
+        new_p->size = dp[j]->size;
+        new_p->scheme = dp[j]->dpb_queue.head->b->type;
+        new_p->disk_vols = (DiskVol **)ats_malloc(gndisks * sizeof(DiskVol *));
+        memset(new_p->disk_vols, 0, gndisks * sizeof(DiskVol *));
+        new_p->disk_vols[i] = dp[j];
+        cp_list.enqueue(new_p);
+        cp_list_len++;
+      }
+    }
+  }
+}
+
+
+void
+cplist_update()
+{
+  /* go through cplist and delete volumes that are not in the volume.config */
+  CacheVol *cp = cp_list.head;
+  ConfigVol *config_vol;
+
+  while (cp) {
+    for (config_vol = config_volumes.cp_queue.head; config_vol; config_vol = config_vol->link.next) {
+      if (config_vol->number == cp->vol_number) {
+        off_t size_in_blocks = config_vol->size << (20 - STORE_BLOCK_SHIFT);
+        if ((cp->size <= size_in_blocks) && (cp->scheme == config_vol->scheme)) {
+          config_vol->cachep = cp;
+        } else {
+          /* delete this volume from all the disks */
+          int d_no;
+          int clearCV = 1;
+          for (d_no = 0; d_no < gndisks; d_no++) {
+              if (cp->disk_vols[d_no]) {
+                 if(cp->disk_vols[d_no]->disk->forced_volume_num == cp->vol_number) {
+                    clearCV = 0;
+                    config_vol->cachep = cp;
+                 } else {
+                    cp->disk_vols[d_no]->disk->delete_volume(cp->vol_number);
+                 }
+             }
+          }
+          if (clearCV)
+              config_vol = NULL;
+        }
+        break;
+      }
+    }
+
+    if (!config_vol) {
+      // did not find a matching volume in the config file.
+      //Delete hte volume from the cache vol list
+      int d_no;
+      for (d_no = 0; d_no < gndisks; d_no++) {
+        if (cp->disk_vols[d_no])
+          cp->disk_vols[d_no]->disk->delete_volume(cp->vol_number);
+      }
+      CacheVol *temp_cp = cp;
+      cp = cp->link.next;
+      cp_list.remove(temp_cp);
+      cp_list_len--;
+      delete temp_cp;
+      continue;
+    } else
+      cp = cp->link.next;
+  }
+}
+
+static int fillExclusiveDisks(CacheVol *cp) {
+  int diskCount = 0;
+  int volume_number = cp->vol_number;
+  Debug("cache_init", "volume %d", volume_number);
+
+   for (int i = 0; i < gndisks; i++) {
+     if(gdisks[i]->forced_volume_num != volume_number)
+       continue;
+     /* The user had created several volumes before - clear the disk
+        and create one volume for http */
+     for(int j = 0; j < (int)gdisks[i]->header->num_volumes; j++) {
+       if (volume_number != gdisks[i]->disk_vols[j]->vol_number) {
+         Note("Clearing Disk: %s", gdisks[i]->path);
+         gdisks[i]->delete_all_volumes();
+         break;
+       }
+     }
+
+     diskCount++;
+     int64_t size_diff = gdisks[i]->num_usable_blocks;
+     DiskVolBlock *dpb;
+     do {
+       dpb = gdisks[i]->create_volume(volume_number, size_diff, cp->scheme);
+       if (dpb) {
+         if (!cp->disk_vols[i]) {
+           cp->disk_vols[i] = gdisks[i]->get_diskvol(volume_number);
+         }
+         size_diff -= dpb->len;
+         cp->size += dpb->len;
+         cp->num_vols++;
+       } else {
+         Debug("cache_init", "create_volume failed");
+         break;
+       }
+     } while ((size_diff > 0));
+   }
+   return diskCount;
+}
+
+
+int
+cplist_reconfigure()
+{
+  int64_t size;
+  int volume_number;
+  off_t size_in_blocks;
+  ConfigVol *config_vol;
+
+  gnvol = 0;
+  if (config_volumes.num_volumes == 0) {
+    /* only the http cache */
+    CacheVol *cp = new CacheVol();
+    cp->vol_number = 0;
+    cp->scheme = CACHE_HTTP_TYPE;
+    cp->disk_vols = (DiskVol **)ats_malloc(gndisks * sizeof(DiskVol *));
+    memset(cp->disk_vols, 0, gndisks * sizeof(DiskVol *));
+    cp_list.enqueue(cp);
+    cp_list_len++;
+    for (int i = 0; i < gndisks; i++) {
+      if (gdisks[i]->header->num_volumes != 1 || gdisks[i]->disk_vols[0]->vol_number != 0) {
+        /* The user had created several volumes before - clear the disk
+           and create one volume for http */
+        Note("Clearing Disk: %s", gdisks[i]->path);
+        gdisks[i]->delete_all_volumes();
+      }
+      if (gdisks[i]->cleared) {
+        uint64_t free_space = gdisks[i]->free_space * STORE_BLOCK_SIZE;
+        int vols = (free_space / MAX_VOL_SIZE) + 1;
+        for (int p = 0; p < vols; p++) {
+          off_t b = gdisks[i]->free_space / (vols - p);
+          Debug("cache_hosting", "blocks = %" PRId64, (int64_t)b);
+          DiskVolBlock *dpb = gdisks[i]->create_volume(0, b, CACHE_HTTP_TYPE);
+          ink_assert(dpb && dpb->len == (uint64_t)b);
+        }
+        ink_assert(gdisks[i]->free_space == 0);
+      }
+
+      ink_assert(gdisks[i]->header->num_volumes == 1);
+      DiskVol **dp = gdisks[i]->disk_vols;
+      gnvol += dp[0]->num_volblocks;
+      cp->size += dp[0]->size;
+      cp->num_vols += dp[0]->num_volblocks;
+      cp->disk_vols[i] = dp[0];
+    }
+
+  } else {
+    for (int i = 0; i < gndisks; i++) {
+      if (gdisks[i]->header->num_volumes == 1 && gdisks[i]->disk_vols[0]->vol_number == 0) {
+        /* The user had created several volumes before - clear the disk
+           and create one volume for http */
+        Note("Clearing Disk: %s", gdisks[i]->path);
+        gdisks[i]->delete_all_volumes();
+      }
+    }
+
+    /* change percentages in the config patitions to absolute value */
+    off_t tot_space_in_blks = 0;
+    off_t blocks_per_vol = VOL_BLOCK_SIZE / STORE_BLOCK_SIZE;
+    /* sum up the total space available on all the disks.
+       round down the space to 128 megabytes */
+    for (int i = 0; i < gndisks; i++)
+      tot_space_in_blks += (gdisks[i]->num_usable_blocks / blocks_per_vol) * blocks_per_vol;
+
+    double percent_remaining = 100.00;
+    for (config_vol = config_volumes.cp_queue.head; config_vol; config_vol = config_vol->link.next) {
+      if (config_vol->in_percent) {
+        if (config_vol->percent > percent_remaining) {
+          Warning("total volume sizes added up to more than 100%%!");
+          Warning("no volumes created");
+          return -1;
+        }
+        int64_t space_in_blks = (int64_t) (((double) (config_vol->percent / percent_remaining)) * tot_space_in_blks);
+
+        space_in_blks = space_in_blks >> (20 - STORE_BLOCK_SHIFT);
+        /* round down to 128 megabyte multiple */
+        space_in_blks = (space_in_blks >> 7) << 7;
+        config_vol->size = space_in_blks;
+        tot_space_in_blks -= space_in_blks << (20 - STORE_BLOCK_SHIFT);
+        percent_remaining -= (config_vol->size < 128) ? 0 : config_vol->percent;
+      }
+      if (config_vol->size < 128) {
+        Warning("the size of volume %d (%" PRId64") is less than the minimum required volume size %d",
+                config_vol->number, (int64_t)config_vol->size, 128);
+        Warning("volume %d is not created", config_vol->number);
+      }
+      Debug("cache_hosting", "Volume: %d Size: %" PRId64, config_vol->number, (int64_t)config_vol->size);
+    }
+    cplist_update();
+    /* go through volume config and grow and create volumes */
+
+    for (config_vol = config_volumes.cp_queue.head; config_vol; config_vol = config_vol->link.next) {
+      // if volume is given exclusive disks, fill here and continue
+      volume_number = config_vol->number;
+      if (!config_vol->cachep) {
+        continue;
+      }
+      fillExclusiveDisks(config_vol->cachep);
+    }
+
+    for (config_vol = config_volumes.cp_queue.head; config_vol; config_vol = config_vol->link.next) {
+
+      size = config_vol->size;
+      if (size < 128)
+        continue;
+
+      volume_number = config_vol->number;
+
+      size_in_blocks = ((off_t) size * 1024 * 1024) / STORE_BLOCK_SIZE;
+
+      if(config_vol->cachep && config_vol->cachep->num_vols > 0) {
+        gnvol += config_vol->cachep->num_vols;
+        continue;
+      }
+
+      if (!config_vol->cachep) {
+        // we did not find a corresponding entry in cache vol...creat one
+
+        CacheVol *new_cp = new CacheVol();
+        new_cp->disk_vols = (DiskVol **)ats_malloc(gndisks * sizeof(DiskVol *));
+        memset(new_cp->disk_vols, 0, gndisks * sizeof(DiskVol *));
+        if (create_volume(config_vol->number, size_in_blocks, config_vol->scheme, new_cp))
+          return -1;
+        cp_list.enqueue(new_cp);
+        cp_list_len++;
+        config_vol->cachep = new_cp;
+        gnvol += new_cp->num_vols;
+        continue;
+      }
+//    else
+      CacheVol *cp = config_vol->cachep;
+      ink_assert(cp->size <= size_in_blocks);
+      if (cp->size == size_in_blocks) {
+        gnvol += cp->num_vols;
+        continue;
+      }
+      // else the size is greater...
+      /* search the cp_list */
+
+      int *sorted_vols = new int[gndisks];
+      for (int i = 0; i < gndisks; i++)
+        sorted_vols[i] = i;
+      for (int i = 0; i < gndisks - 1; i++) {
+        int smallest = sorted_vols[i];
+        int smallest_ndx = i;
+        for (int j = i + 1; j < gndisks; j++) {
+          int curr = sorted_vols[j];
+          DiskVol *dvol = cp->disk_vols[curr];
+          if (gdisks[curr]->cleared) {
+            ink_assert(!dvol);
+            // disks that are cleared should be filled first
+            smallest = curr;
+            smallest_ndx = j;
+          } else if (!dvol && cp->disk_vols[smallest]) {
+
+            smallest = curr;
+            smallest_ndx = j;
+          } else if (dvol && cp->disk_vols[smallest] && (dvol->size < cp->disk_vols[smallest]->size)) {
+            smallest = curr;
+            smallest_ndx = j;
+          }
+        }
+        sorted_vols[smallest_ndx] = sorted_vols[i];
+        sorted_vols[i] = smallest;
+      }
+
+      int64_t size_to_alloc = size_in_blocks - cp->size;
+      int disk_full = 0;
+      for (int i = 0; (i < gndisks) && size_to_alloc; i++) {
+
+        int disk_no = sorted_vols[i];
+        ink_assert(cp->disk_vols[sorted_vols[gndisks - 1]]);
+        int largest_vol = cp->disk_vols[sorted_vols[gndisks - 1]]->size;
+
+        /* allocate storage on new disk. Find the difference
+           between the biggest volume on any disk and
+           the volume on this disk and try to make
+           them equal */
+        int64_t size_diff = (cp->disk_vols[disk_no]) ? largest_vol - cp->disk_vols[disk_no]->size : largest_vol;
+        size_diff = (size_diff < size_to_alloc) ? size_diff : size_to_alloc;
+        /* if size_diff == 0, then then the disks have volumes of the
+           same sizes, so we don't need to balance the disks */
+        if (size_diff == 0)
+          break;
+
+        DiskVolBlock *dpb;
+        do {
+          dpb = gdisks[disk_no]->create_volume(volume_number, size_diff, cp->scheme);
+          if (dpb) {
+            if (!cp->disk_vols[disk_no]) {
+              cp->disk_vols[disk_no] = gdisks[disk_no]->get_diskvol(volume_number);
+            }
+            size_diff -= dpb->len;
+            cp->size += dpb->len;
+            cp->num_vols++;
+          } else
+            break;
+        } while ((size_diff > 0));
+
+        if (!dpb)
+          disk_full++;
+
+        size_to_alloc = size_in_blocks - cp->size;
+      }
+
+      delete[]sorted_vols;
+
+      if (size_to_alloc) {
+        if (create_volume(volume_number, size_to_alloc, cp->scheme, cp))
+          return -1;
+      }
+      gnvol += cp->num_vols;
+    }
+  }
+  return 0;
+}
+
+// This is some really bad code, and needs to be rewritten!
+int
+create_volume(int volume_number, off_t size_in_blocks, int scheme, CacheVol *cp)
+{
+  static int curr_vol = 0;  // FIXME: this will not reinitialize correctly
+  off_t to_create = size_in_blocks;
+  off_t blocks_per_vol = VOL_BLOCK_SIZE >> STORE_BLOCK_SHIFT;
+  int full_disks = 0;
+
+  cp->vol_number = volume_number;
+  cp->scheme = scheme;
+  if(fillExclusiveDisks(cp)) {
+    Debug("cache_init", "volume successfully filled from forced disks: volume_number=%d", volume_number);
+    return 0;
+  }
+
+  int *sp = new int[gndisks];
+  memset(sp, 0, gndisks * sizeof(int));
+
+  int i = curr_vol;
+  while (size_in_blocks > 0) {
+    if (gdisks[i]->free_space >= (sp[i] + blocks_per_vol)) {
+      sp[i] += blocks_per_vol;
+      size_in_blocks -= blocks_per_vol;
+      full_disks = 0;
+    } else {
+      full_disks += 1;
+      if (full_disks == gndisks) {
+        char config_file[PATH_NAME_MAX];
+        REC_ReadConfigString(config_file, "proxy.config.cache.volume_filename", PATH_NAME_MAX);
+        if (cp->size)
+          Warning("not enough space to increase volume: [%d] to size: [%" PRId64 "]",
+                  volume_number, (int64_t)((to_create + cp->size) >> (20 - STORE_BLOCK_SHIFT)));
+        else
+          Warning("not enough space to create volume: [%d], size: [%" PRId64 "]",
+                  volume_number, (int64_t)(to_create >> (20 - STORE_BLOCK_SHIFT)));
+
+        Note("edit the %s file and restart traffic_server", config_file);
+        delete[]sp;
+        return -1;
+      }
+    }
+    i = (i + 1) % gndisks;
+  }
+  cp->vol_number = volume_number;
+  cp->scheme = scheme;
+  curr_vol = i;
+  for (i = 0; i < gndisks; i++) {
+    if (sp[i] > 0) {
+      while (sp[i] > 0) {
+        DiskVolBlock *p = gdisks[i]->create_volume(volume_number, sp[i], scheme);
+        ink_assert(p && (p->len >= (unsigned int) blocks_per_vol));
+        sp[i] -= p->len;
+        cp->num_vols++;
+        cp->size += p->len;
+      }
+      if (!cp->disk_vols[i])
+        cp->disk_vols[i] = gdisks[i]->get_diskvol(volume_number);
+    }
+  }
+  delete[]sp;
+  return 0;
+}
+
+void
+rebuild_host_table(Cache *cache)
+{
+  build_vol_hash_table(&cache->hosttable->gen_host_rec);
+  if (cache->hosttable->m_numEntries != 0) {
+    CacheHostMatcher *hm = cache->hosttable->getHostMatcher();
+    CacheHostRecord *h_rec = hm->getDataArray();
+    int h_rec_len = hm->getNumElements();
+    int i;
+    for (i = 0; i < h_rec_len; i++) {
+      build_vol_hash_table(&h_rec[i]);
+    }
+  }
+}
+
+// if generic_host_rec.vols == NULL, what do we do???
+Vol *
+Cache::key_to_vol(CacheKey *key, char *hostname, int host_len)
+{
+  uint32_t h = (key->word(2) >> DIR_TAG_WIDTH) % VOL_HASH_TABLE_SIZE;
+  unsigned short *hash_table = hosttable->gen_host_rec.vol_hash_table;
+  CacheHostRecord *host_rec = &hosttable->gen_host_rec;
+
+  if (hosttable->m_numEntries > 0 && host_len) {
+    CacheHostResult res;
+    hosttable->Match(hostname, host_len, &res);
+    if (res.record) {
+      unsigned short *host_hash_table = res.record->vol_hash_table;
+      if (host_hash_table) {
+        if (is_debug_tag_set("cache_hosting")) {
+          char format_str[50];
+          snprintf(format_str, sizeof(format_str), "Volume: %%xd for host: %%.%ds", host_len);
+          Debug("cache_hosting", format_str, res.record, hostname);
+        }
+        return res.record->vols[host_hash_table[h]];
+      }
+    }
+  }
+  if (hash_table) {
+    if (is_debug_tag_set("cache_hosting")) {
+      char format_str[50];
+      snprintf(format_str, sizeof(format_str), "Generic volume: %%xd for host: %%.%ds", host_len);
+      Debug("cache_hosting", format_str, host_rec, hostname);
+    }
+    return host_rec->vols[hash_table[h]];
+  } else
+    return host_rec->vols[0];
+}
+
+static void reg_int(const char *str, int stat, RecRawStatBlock *rsb, const char *prefix, RecRawStatSyncCb sync_cb=RecRawStatSyncSum) {
+  char stat_str[256];
+  snprintf(stat_str, sizeof(stat_str), "%s.%s", prefix, str);
+  RecRegisterRawStat(rsb, RECT_PROCESS, stat_str, RECD_INT, RECP_NON_PERSISTENT, stat, sync_cb);
+  DOCACHE_CLEAR_DYN_STAT(stat)
+}
+#define REG_INT(_str, _stat) reg_int(_str, (int)_stat, rsb, prefix)
+
+// Register Stats
+void
+register_cache_stats(RecRawStatBlock *rsb, const char *prefix)
+{
+  // Special case for this sucker, since it uses its own aggregator.
+  reg_int("bytes_used", cache_bytes_used_stat, rsb, prefix, cache_stats_bytes_used_cb);
+
+  REG_INT("bytes_total", cache_bytes_total_stat);
+  REG_INT("ram_cache.total_bytes", cache_ram_cache_bytes_total_stat);
+  REG_INT("ram_cache.bytes_used", cache_ram_cache_bytes_stat);
+  REG_INT("ram_cache.hits", cache_ram_cache_hits_stat);
+  REG_INT("ram_cache.misses", cache_ram_cache_misses_stat);
+  REG_INT("pread_count", cache_pread_count_stat);
+  REG_INT("percent_full", cache_percent_full_stat);
+  REG_INT("lookup.active", cache_lookup_active_stat);
+  REG_INT("lookup.success", cache_lookup_success_stat);
+  REG_INT("lookup.failure", cache_lookup_failure_stat);
+  REG_INT("read.active", cache_read_active_stat);
+  REG_INT("read.success", cache_read_success_stat);
+  REG_INT("read.failure", cache_read_failure_stat);
+#if TS_USE_INTERIM_CACHE == 1
+  REG_INT("interim.read.success", cache_interim_read_success_stat);
+  REG_INT("disk.read.success", cache_disk_read_success_stat);
+  REG_INT("ram.read.success", cache_ram_read_success_stat);
+#endif
+  REG_INT("write.active", cache_write_active_stat);
+  REG_INT("write.success", cache_write_success_stat);
+  REG_INT("write.failure", cache_write_failure_stat);
+  REG_INT("write.backlog.failure", cache_write_backlog_failure_stat);
+  REG_INT("update.active", cache_update_active_stat);
+  REG_INT("update.success", cache_update_success_stat);
+  REG_INT("update.failure", cache_update_failure_stat);
+  REG_INT("remove.active", cache_remove_active_stat);
+  REG_INT("remove.success", cache_remove_success_stat);
+  REG_INT("remove.failure", cache_remove_failure_stat);
+  REG_INT("evacuate.active", cache_evacuate_active_stat);
+  REG_INT("evacuate.success", cache_evacuate_success_stat);
+  REG_INT("evacuate.failure", cache_evacuate_failure_stat);
+  REG_INT("scan.active", cache_scan_active_stat);
+  REG_INT("scan.success", cache_scan_success_stat);
+  REG_INT("scan.failure", cache_scan_failure_stat);
+  REG_INT("direntries.total", cache_direntries_total_stat);
+  REG_INT("direntries.used", cache_direntries_used_stat);
+  REG_INT("directory_collision", cache_directory_collision_count_stat);
+  REG_INT("frags_per_doc.1", cache_single_fragment_document_count_stat);
+  REG_INT("frags_per_doc.2", cache_two_fragment_document_count_stat);
+  REG_INT("frags_per_doc.3+", cache_three_plus_plus_fragment_document_count_stat);
+  REG_INT("read_busy.success", cache_read_busy_success_stat);
+  REG_INT("read_busy.failure", cache_read_busy_failure_stat);
+  REG_INT("write_bytes_stat", cache_write_bytes_stat);
+  REG_INT("vector_marshals", cache_hdr_vector_marshal_stat);
+  REG_INT("hdr_marshals", cache_hdr_marshal_stat);
+  REG_INT("hdr_marshal_bytes", cache_hdr_marshal_bytes_stat);
+  REG_INT("gc_bytes_evacuated", cache_gc_bytes_evacuated_stat);
+  REG_INT("gc_frags_evacuated", cache_gc_frags_evacuated_stat);
+}
+
+
+void
+ink_cache_init(ModuleVersion v)
+{
+  ink_release_assert(!checkModuleVersion(v, CACHE_MODULE_VERSION));
+
+  cache_rsb = RecAllocateRawStatBlock((int) cache_stat_count);
+
+  REC_EstablishStaticConfigInteger(cache_config_ram_cache_size, "proxy.config.cache.ram_cache.size");
+  Debug("cache_init", "proxy.config.cache.ram_cache.size = %" PRId64 " = %" PRId64 "Mb",
+        cache_config_ram_cache_size, cache_config_ram_cache_size / (1024 * 1024));
+
+  REC_EstablishStaticConfigInt32(cache_config_ram_cache_algorithm, "proxy.config.cache.ram_cache.algorithm");
+  REC_EstablishStaticConfigInt32(cache_config_ram_cache_compress, "proxy.config.cache.ram_cache.compress");
+  REC_EstablishStaticConfigInt32(cache_config_ram_cache_compress_percent, "proxy.config.cache.ram_cache.compress_percent");
+  REC_EstablishStaticConfigInt32(cache_config_ram_cache_use_seen_filter, "proxy.config.cache.ram_cache.use_seen_filter");
+
+  REC_EstablishStaticConfigInt32(cache_config_http_max_alts, "proxy.config.cache.limits.http.max_alts");
+  Debug("cache_init", "proxy.config.cache.limits.http.max_alts = %d", cache_config_http_max_alts);
+
+  REC_EstablishStaticConfigInteger(cache_config_ram_cache_cutoff, "proxy.config.cache.ram_cache_cutoff");
+  Debug("cache_init", "cache_config_ram_cache_cutoff = %" PRId64 " = %" PRId64 "Mb",
+        cache_config_ram_cache_cutoff, cache_config_ram_cache_cutoff / (1024 * 1024));
+
+  REC_EstablishStaticConfigInt32(cache_config_permit_pinning, "proxy.config.cache.permit.pinning");
+  Debug("cache_init", "proxy.config.cache.permit.pinning = %d", cache_config_permit_pinning);
+
+  REC_EstablishStaticConfigInt32(cache_config_dir_sync_frequency, "proxy.config.cache.dir.sync_frequency");
+  Debug("cache_init", "proxy.config.cache.dir.sync_frequency = %d", cache_config_dir_sync_frequency);
+
+  REC_EstablishStaticConfigInt32(cache_config_vary_on_user_agent, "proxy.config.cache.vary_on_user_agent");
+  Debug("cache_init", "proxy.config.cache.vary_on_user_agent = %d", cache_config_vary_on_user_agent);
+
+  REC_EstablishStaticConfigInt32(cache_config_select_alternate, "proxy.config.cache.select_alternate");
+  Debug("cache_init", "proxy.config.cache.select_alternate = %d", cache_config_select_alternate);
+
+  REC_EstablishStaticConfigInt32(cache_config_max_doc_size, "proxy.config.cache.max_doc_size");
+  Debug("cache_init", "proxy.config.cache.max_doc_size = %d = %dMb",
+        cache_config_max_doc_size, cache_config_max_doc_size / (1024 * 1024));
+
+  REC_EstablishStaticConfigInt32(cache_config_mutex_retry_delay, "proxy.config.cache.mutex_retry_delay");
+  Debug("cache_init", "proxy.config.cache.mutex_retry_delay = %dms", cache_config_mutex_retry_delay);
+
+  REC_EstablishStaticConfigInt32(cache_config_hit_evacuate_percent, "proxy.config.cache.hit_evacuate_percent");
+  Debug("cache_init", "proxy.config.cache.hit_evacuate_percent = %d", cache_config_hit_evacuate_percent);
+
+  REC_EstablishStaticConfigInt32(cache_config_hit_evacuate_size_limit, "proxy.config.cache.hit_evacuate_size_limit");
+  Debug("cache_init", "proxy.config.cache.hit_evacuate_size_limit = %d", cache_config_hit_evacuate_size_limit);
+
+  REC_EstablishStaticConfigInt32(cache_config_force_sector_size, "proxy.config.cache.force_sector_size");
+  REC_EstablishStaticConfigInt32(cache_config_target_fragment_size, "proxy.config.cache.target_fragment_size");
+
+  if (cache_config_target_fragment_size == 0)
+    cache_config_target_fragment_size = DEFAULT_TARGET_FRAGMENT_SIZE;
+
+#ifdef HTTP_CACHE
+  REC_EstablishStaticConfigInt32(enable_cache_empty_http_doc, "proxy.config.http.cache.allow_empty_doc");
+#endif
+
+#if TS_USE_INTERIM_CACHE == 1
+  REC_EstablishStaticConfigInt32(migrate_threshold, "proxy.config.cache.interim.migrate_threshold");
+  Debug("cache_init", "proxy.config.cache.migrate_threshold = %d", migrate_threshold);
+#endif
+
+  REC_EstablishStaticConfigInt32(cache_config_max_disk_errors, "proxy.config.cache.max_disk_errors");
+  Debug("cache_init", "proxy.config.cache.max_disk_errors = %d", cache_config_max_disk_errors);
+
+  REC_EstablishStaticConfigInt32(cache_config_agg_write_backlog, "proxy.config.cache.agg_write_backlog");
+  Debug("cache_init", "proxy.config.cache.agg_write_backlog = %d", cache_config_agg_write_backlog);
+
+  REC_EstablishStaticConfigInt32(cache_config_enable_checksum, "proxy.config.cache.enable_checksum");
+  Debug("cache_init", "proxy.config.cache.enable_checksum = %d", cache_config_enable_checksum);
+
+  REC_EstablishStaticConfigInt32(cache_config_alt_rewrite_max_size, "proxy.config.cache.alt_rewrite_max_size");
+  Debug("cache_init", "proxy.config.cache.alt_rewrite_max_size = %d", cache_config_alt_rewrite_max_size);
+
+  REC_EstablishStaticConfigInt32(cache_config_read_while_writer, "proxy.config.cache.enable_read_while_writer");
+  cache_config_read_while_writer = validate_rww(cache_config_read_while_writer);
+  REC_RegisterConfigUpdateFunc("proxy.config.cache.enable_read_while_writer", update_cache_config, NULL);
+  Debug("cache_init", "proxy.config.cache.enable_read_while_writer = %d", cache_config_read_while_writer);
+
+  register_cache_stats(cache_rsb, "proxy.process.cache");
+
+  const char *err = NULL;
+  if ((err = theCacheStore.read_config())) {
+    printf("%s  failed\n", err);
+    exit(1);
+  }
+
+  if (theCacheStore.n_disks == 0) {
+    xptr<char> path(RecConfigReadConfigPath("proxy.config.cache.storage_filename", "storage.config"));
+    Warning("no cache disks specified in %s: cache disabled\n", (const char *)path);
+    //exit(1);
+  }
+#if TS_USE_INTERIM_CACHE == 1
+  else {
+    theCacheStore.read_interim_config();
+    if (theCacheStore.n_interim_disks == 0)
+      Warning("no interim disks specified in %s: \n", "proxy.config.cache.interim.storage");
+  }
+#endif
+}
+
+//----------------------------------------------------------------------------
+Action *
+CacheProcessor::open_read(Continuation *cont, URL *url, bool cluster_cache_local, CacheHTTPHdr *request,
+                          CacheLookupHttpConfig *params, time_t pin_in_cache, CacheFragType type)
+{
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    return open_read_internal(CACHE_OPEN_READ_LONG, cont, (MIOBuffer *) 0,
+                              url, request, params, (CacheKey *) 0, pin_in_cache, type, (char *) 0, 0);
+  }
+#endif
+  return caches[type]->open_read(cont, url, request, params, type);
+}
+
+
+//----------------------------------------------------------------------------
+Action *
+CacheProcessor::open_write(Continuation *cont, int expected_size, URL *url, bool cluster_cache_local,
+                           CacheHTTPHdr *request, CacheHTTPInfo *old_info, time_t pin_in_cache, CacheFragType type)
+{
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    INK_MD5 url_md5;
+    Cache::generate_key(&url_md5, url);
+    ClusterMachine *m = cluster_machine_at_depth(cache_hash(url_md5));
+
+    if (m) {
+      // Do remote open_write()
+      INK_MD5 url_only_md5;
+      Cache::generate_key(&url_only_md5, url);
+      return Cluster_write(cont, expected_size, (MIOBuffer *) 0, m,
+                           &url_only_md5, type,
+                           false, pin_in_cache, CACHE_OPEN_WRITE_LONG,
+                           (CacheKey *) 0, url, request, old_info, (char *) 0, 0);
+    }
+  }
+#endif
+  return caches[type]->open_write(cont, url, request, old_info, pin_in_cache, type);
+}
+
+//----------------------------------------------------------------------------
+// Note: this should not be called from from the cluster processor, or bad
+// recursion could occur. This is merely a convenience wrapper.
+Action *
+CacheProcessor::remove(Continuation *cont, URL *url, bool cluster_cache_local, CacheFragType frag_type)
+{
+  INK_MD5 md5;
+  int len = 0;
+  const char *hostname;
+
+  url->MD5_get(&md5);
+  hostname = url->host_get(&len);
+
+  Debug("cache_remove", "[CacheProcessor::remove] Issuing cache delete for %s", url->string_get_ref());
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    // Remove from cluster
+    return remove(cont, &md5, cluster_cache_local, frag_type, true, false, const_cast<char *>(hostname), len);
+  }
+#endif
+
+  // Remove from local cache only.
+  return caches[frag_type]->remove(cont, &md5, frag_type, true, false, const_cast<char*>(hostname), len);
+}
+
+CacheDisk*
+CacheProcessor::find_by_path(char const* path, int len)
+{
+  if (CACHE_INITIALIZED == initialized) {
+    // If no length is passed in, assume it's null terminated.
+    if (0 >= len && 0 != *path) len = strlen(path);
+
+    for ( int i = 0 ; i < gndisks ; ++i ) {
+      if (0 == strncmp(path, gdisks[i]->path, len))
+        return gdisks[i];
+    }
+  }
+
+  return 0;
+}
diff --git a/iocore/cache/CacheDir.cc b/iocore/cache/CacheDir.cc
new file mode 100644
index 00000000..98c3a379
--- /dev/null
+++ b/iocore/cache/CacheDir.cc
@@ -0,0 +1,1592 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "P_Cache.h"
+
+// #define LOOP_CHECK_MODE 1
+#ifdef LOOP_CHECK_MODE
+#define DIR_LOOP_THRESHOLD	      1000
+#endif
+#include "ink_stack_trace.h"
+
+#define CACHE_INC_DIR_USED(_m) do { \
+ProxyMutex *mutex = _m; \
+CACHE_INCREMENT_DYN_STAT(cache_direntries_used_stat); \
+} while (0) \
+
+#define CACHE_DEC_DIR_USED(_m) do { \
+ProxyMutex *mutex = _m; \
+CACHE_DECREMENT_DYN_STAT(cache_direntries_used_stat); \
+} while (0) \
+
+#define CACHE_INC_DIR_COLLISIONS(_m) do {\
+ProxyMutex *mutex = _m; \
+CACHE_INCREMENT_DYN_STAT(cache_directory_collision_count_stat); \
+} while (0);
+
+
+// Globals
+
+ClassAllocator<OpenDirEntry> openDirEntryAllocator("openDirEntry");
+Dir empty_dir;
+
+// OpenDir
+
+OpenDir::OpenDir()
+{
+  SET_HANDLER(&OpenDir::signal_readers);
+}
+
+/*
+   If allow_if_writers is false, open_write fails if there are other writers.
+   max_writers sets the maximum number of concurrent writers that are
+   allowed. Only The first writer can set the max_writers. It is ignored
+   for later writers.
+   Returns 1 on success and 0 on failure.
+   */
+int
+OpenDir::open_write(CacheVC *cont, int allow_if_writers, int max_writers)
+{
+  ink_assert(cont->vol->mutex->thread_holding == this_ethread());
+  unsigned int h = cont->first_key.word(0);
+  int b = h % OPEN_DIR_BUCKETS;
+  for (OpenDirEntry *d = bucket[b].head; d; d = d->link.next) {
+    if (!(d->writers.head->first_key == cont->first_key))
+      continue;
+    if (allow_if_writers && d->num_writers < d->max_writers) {
+      d->writers.push(cont);
+      d->num_writers++;
+      cont->od = d;
+      cont->write_vector = &d->vector;
+      return 1;
+    }
+    return 0;
+  }
+  OpenDirEntry *od = THREAD_ALLOC(openDirEntryAllocator,
+                                  cont->mutex->thread_holding);
+  od->readers.head = NULL;
+  od->writers.push(cont);
+  od->num_writers = 1;
+  od->max_writers = max_writers;
+  od->vector.data.data = &od->vector.data.fast_data[0];
+  od->dont_update_directory = 0;
+  od->move_resident_alt = 0;
+  od->reading_vec = 0;
+  od->writing_vec = 0;
+  dir_clear(&od->first_dir);
+  cont->od = od;
+  cont->write_vector = &od->vector;
+  bucket[b].push(od);
+  return 1;
+}
+
+int
+OpenDir::signal_readers(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Queue<CacheVC, Link_CacheVC_opendir_link> newly_delayed_readers;
+  EThread *t = mutex->thread_holding;
+  CacheVC *c = NULL;
+  while ((c = delayed_readers.dequeue())) {
+    CACHE_TRY_LOCK(lock, c->mutex, t);
+    if (lock) {
+      c->f.open_read_timeout = 0;
+      c->handleEvent(EVENT_IMMEDIATE, 0);
+      continue;
+    }
+    newly_delayed_readers.push(c);
+  }
+  if (newly_delayed_readers.head) {
+    delayed_readers = newly_delayed_readers;
+    EThread *t1 = newly_delayed_readers.head->mutex->thread_holding;
+    if (!t1)
+      t1 = mutex->thread_holding;
+    t1->schedule_in(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+  }
+  return 0;
+}
+
+int
+OpenDir::close_write(CacheVC *cont)
+{
+  ink_assert(cont->vol->mutex->thread_holding == this_ethread());
+  cont->od->writers.remove(cont);
+  cont->od->num_writers--;
+  if (!cont->od->writers.head) {
+    unsigned int h = cont->first_key.word(0);
+    int b = h % OPEN_DIR_BUCKETS;
+    bucket[b].remove(cont->od);
+    delayed_readers.append(cont->od->readers);
+    signal_readers(0, 0);
+    cont->od->vector.clear();
+    THREAD_FREE(cont->od, openDirEntryAllocator, cont->mutex->thread_holding);
+  }
+  cont->od = NULL;
+  return 0;
+}
+
+OpenDirEntry *
+OpenDir::open_read(INK_MD5 *key)
+{
+  unsigned int h = key->word(0);
+  int b = h % OPEN_DIR_BUCKETS;
+  for (OpenDirEntry *d = bucket[b].head; d; d = d->link.next)
+    if (d->writers.head->first_key == *key)
+      return d;
+  return NULL;
+}
+
+int
+OpenDirEntry::wait(CacheVC *cont, int msec)
+{
+  ink_assert(cont->vol->mutex->thread_holding == this_ethread());
+  cont->f.open_read_timeout = 1;
+  ink_assert(!cont->trigger);
+  cont->trigger = cont->vol->mutex->thread_holding->schedule_in_local(cont, HRTIME_MSECONDS(msec));
+  readers.push(cont);
+  return EVENT_CONT;
+}
+
+//
+// Cache Directory
+//
+
+// return value 1 means no loop
+// zero indicates loop
+int
+dir_bucket_loop_check(Dir *start_dir, Dir *seg)
+{
+  if (start_dir == NULL)
+    return 1;
+
+  Dir *p1 = start_dir;
+  Dir *p2 = start_dir;
+
+  while (p2) {
+    // p1 moves by one entry per iteration
+    p1 = next_dir(p1, seg);
+    // p2 moves by two entries per iteration
+    p2 = next_dir(p2, seg);
+    if (p2)
+      p2 = next_dir(p2, seg);
+    else
+      return 1;
+
+    if (p2 == p1)
+      return 0;                 // we have a loop
+  }
+  return 1;
+}
+
+// adds all the directory entries
+// in a segment to the segment freelist
+void
+dir_init_segment(int s, Vol *d)
+{
+  d->header->freelist[s] = 0;
+  Dir *seg = dir_segment(s, d);
+  int l, b;
+  memset(seg, 0, SIZEOF_DIR * DIR_DEPTH * d->buckets);
+  for (l = 1; l < DIR_DEPTH; l++) {
+    for (b = 0; b < d->buckets; b++) {
+      Dir *bucket = dir_bucket(b, seg);
+      dir_free_entry(dir_bucket_row(bucket, l), s, d);
+    }
+  }
+}
+
+
+// break the infinite loop in directory entries
+// Note : abuse of the token bit in dir entries
+int
+dir_bucket_loop_fix(Dir *start_dir, int s, Vol *d)
+{
+  if (!dir_bucket_loop_check(start_dir, dir_segment(s, d))) {
+    Warning("Dir loop exists, clearing segment %d", s);
+    dir_init_segment(s, d);
+    return 1;
+  }
+  return 0;
+}
+
+int
+dir_freelist_length(Vol *d, int s)
+{
+  int free = 0;
+  Dir *seg = dir_segment(s, d);
+  Dir *e = dir_from_offset(d->header->freelist[s], seg);
+  if (dir_bucket_loop_fix(e, s, d))
+    return (DIR_DEPTH - 1) * d->buckets;
+  while (e) {
+    free++;
+    e = next_dir(e, seg);
+  }
+  return free;
+}
+
+int
+dir_bucket_length(Dir *b, int s, Vol *d)
+{
+  Dir *e = b;
+  int i = 0;
+  Dir *seg = dir_segment(s, d);
+#ifdef LOOP_CHECK_MODE
+  if (dir_bucket_loop_fix(b, s, d))
+    return 1;
+#endif
+  while (e) {
+    i++;
+    if (i > 100)
+      return -1;
+    e = next_dir(e, seg);
+  }
+  return i;
+}
+
+int
+check_dir(Vol *d)
+{
+  int i, s;
+  Debug("cache_check_dir", "inside check dir");
+  for (s = 0; s < d->segments; s++) {
+    Dir *seg = dir_segment(s, d);
+    for (i = 0; i < d->buckets; i++) {
+      Dir *b = dir_bucket(i, seg);
+      if (!(dir_bucket_length(b, s, d) >= 0)) return 0;
+      if (!(!dir_next(b) || dir_offset(b))) return 0;
+      if (!(dir_bucket_loop_check(b, seg))) return 0;
+    }
+  }
+  return 1;
+}
+
+inline void
+unlink_from_freelist(Dir *e, int s, Vol *d)
+{
+  Dir *seg = dir_segment(s, d);
+  Dir *p = dir_from_offset(dir_prev(e), seg);
+  if (p)
+    dir_set_next(p, dir_next(e));
+  else
+    d->header->freelist[s] = dir_next(e);
+  Dir *n = dir_from_offset(dir_next(e), seg);
+  if (n)
+    dir_set_prev(n, dir_prev(e));
+}
+
+inline Dir *
+dir_delete_entry(Dir *e, Dir *p, int s, Vol *d)
+{
+  Dir *seg = dir_segment(s, d);
+  int no = dir_next(e);
+  d->header->dirty = 1;
+  if (p) {
+    unsigned int fo = d->header->freelist[s];
+    unsigned int eo = dir_to_offset(e, seg);
+    dir_clear(e);
+    dir_set_next(p, no);
+    dir_set_next(e, fo);
+    if (fo)
+      dir_set_prev(dir_from_offset(fo, seg), eo);
+    d->header->freelist[s] = eo;
+  } else {
+    Dir *n = next_dir(e, seg);
+    if (n) {
+      dir_assign(e, n);
+      dir_delete_entry(n, e, s, d);
+      return e;
+    } else {
+      dir_clear(e);
+      return NULL;
+    }
+  }
+  return dir_from_offset(no, seg);
+}
+
+inline void
+dir_clean_bucket(Dir *b, int s, Vol *vol)
+{
+  Dir *e = b, *p = NULL;
+  Dir *seg = dir_segment(s, vol);
+#ifdef LOOP_CHECK_MODE
+  int loop_count = 0;
+#endif
+  do {
+#ifdef LOOP_CHECK_MODE
+    loop_count++;
+    if (loop_count > DIR_LOOP_THRESHOLD) {
+      if (dir_bucket_loop_fix(b, s, vol))
+        return;
+    }
+#endif
+    if (!dir_valid(vol, e) || !dir_offset(e)) {
+      if (is_debug_tag_set("dir_clean"))
+        Debug("dir_clean", "cleaning %p tag %X boffset %" PRId64 " b %p p %p l %d",
+              e, dir_tag(e), dir_offset(e), b, p, dir_bucket_length(b, s, vol));
+      if (dir_offset(e))
+        CACHE_DEC_DIR_USED(vol->mutex);
+      e = dir_delete_entry(e, p, s, vol);
+      continue;
+    }
+    p = e;
+    e = next_dir(e, seg);
+  } while (e);
+}
+
+void
+dir_clean_segment(int s, Vol *d)
+{
+  Dir *seg = dir_segment(s, d);
+  for (int64_t i = 0; i < d->buckets; i++) {
+    dir_clean_bucket(dir_bucket(i, seg), s, d);
+    ink_assert(!dir_next(dir_bucket(i, seg)) || dir_offset(dir_bucket(i, seg)));
+  }
+}
+
+void
+dir_clean_vol(Vol *d)
+{
+  for (int64_t i = 0; i < d->segments; i++)
+    dir_clean_segment(i, d);
+  CHECK_DIR(d);
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+static inline void
+interim_dir_clean_bucket(Dir *b, int s, Vol *vol, int offset)
+{
+  Dir *e = b, *p = NULL;
+  Dir *seg = dir_segment(s, vol);
+  do {
+    if (dir_ininterim(e) && dir_get_index(e) == offset) {
+      e = dir_delete_entry(e, p, s, vol);
+      continue;
+    }
+    p = e;
+    e = next_dir(e, seg);
+  } while(e);
+}
+
+void
+clear_interimvol_dir(Vol *v, int offset)
+{
+  for (int i = 0; i < v->segments; i++) {
+    Dir *seg = dir_segment(i, v);
+    for (int j = 0; j < v->buckets; j++) {
+      interim_dir_clean_bucket(dir_bucket(j, seg), i, v, offset);
+    }
+  }
+}
+void
+dir_clean_bucket(Dir *b, int s, InterimCacheVol *d)
+{
+  Dir *e = b, *p = NULL;
+  Vol *vol = d->vol;
+  Dir *seg = dir_segment(s, vol);
+#ifdef LOOP_CHECK_MODE
+  int loop_count = 0;
+#endif
+  do {
+#ifdef LOOP_CHECK_MODE
+    loop_count++;
+    if (loop_count > DIR_LOOP_THRESHOLD) {
+      if (dir_bucket_loop_fix(b, s, vol))
+        return;
+    }
+#endif
+    if (!dir_valid(d, e) || !dir_offset(e)) {
+      if (is_debug_tag_set("dir_clean"))
+        Debug("dir_clean", "cleaning %p tag %X boffset %" PRId64 " b %p p %p l %d",
+              e, dir_tag(e), dir_offset(e), b, p, dir_bucket_length(b, s, vol));
+      if (dir_offset(e))
+        CACHE_DEC_DIR_USED(vol->mutex);
+      e = dir_delete_entry(e, p, s, vol);
+      continue;
+    }
+    p = e;
+    e = next_dir(e, seg);
+  } while (e);
+}
+void
+dir_clean_segment(int s, InterimCacheVol *d)
+{
+  Dir *seg = dir_segment(s, d->vol);
+  for (int i = 0; i < d->vol->buckets; i++) {
+    dir_clean_bucket(dir_bucket(i, seg), s, d);
+    ink_assert(!dir_next(dir_bucket(i, seg)) || dir_offset(dir_bucket(i, seg)));
+  }
+}
+void
+dir_clean_interimvol(InterimCacheVol *d)
+{
+  for (int i = 0; i < d->vol->segments; i++)
+    dir_clean_segment(i, d);
+  CHECK_DIR(d);
+}
+
+void
+dir_clean_range_interimvol(off_t start, off_t end, InterimCacheVol *svol)
+{
+  Vol *vol = svol->vol;
+  int offset = svol - vol->interim_vols;
+
+  for (int i = 0; i < vol->buckets * DIR_DEPTH * vol->segments; i++) {
+    Dir *e = dir_index(vol, i);
+    if (dir_ininterim(e) && dir_get_index(e) == offset && !dir_token(e) &&
+            dir_offset(e) >= (int64_t)start && dir_offset(e) < (int64_t)end) {
+      CACHE_DEC_DIR_USED(vol->mutex);
+      dir_set_offset(e, 0);     // delete
+    }
+  }
+
+  dir_clean_interimvol(svol);
+}
+#endif
+
+void
+dir_clear_range(off_t start, off_t end, Vol *vol)
+{
+  for (off_t i = 0; i < vol->buckets * DIR_DEPTH * vol->segments; i++) {
+    Dir *e = dir_index(vol, i);
+    if (!dir_token(e) && dir_offset(e) >= (int64_t)start && dir_offset(e) < (int64_t)end) {
+      CACHE_DEC_DIR_USED(vol->mutex);
+      dir_set_offset(e, 0);     // delete
+    }
+  }
+  dir_clean_vol(vol);
+}
+
+void
+check_bucket_not_contains(Dir *b, Dir *e, Dir *seg)
+{
+  Dir *x = b;
+  do {
+    if (x == e)
+      break;
+    x = next_dir(x, seg);
+  } while (x);
+  ink_assert(!x);
+}
+
+void
+freelist_clean(int s, Vol *vol)
+{
+  dir_clean_segment(s, vol);
+  if (vol->header->freelist[s])
+    return;
+  Warning("cache directory overflow on '%s' segment %d, purging...", vol->path, s);
+  int n = 0;
+  Dir *seg = dir_segment(s, vol);
+  for (int bi = 0; bi < vol->buckets; bi++) {
+    Dir *b = dir_bucket(bi, seg);
+    for (int l = 0; l < DIR_DEPTH; l++) {
+      Dir *e = dir_bucket_row(b, l);
+      if (dir_head(e) && !(n++ % 10)) {
+        CACHE_DEC_DIR_USED(vol->mutex);
+        dir_set_offset(e, 0);   // delete
+      }
+    }
+  }
+  dir_clean_segment(s, vol);
+}
+
+inline Dir *
+freelist_pop(int s, Vol *d)
+{
+  Dir *seg = dir_segment(s, d);
+  Dir *e = dir_from_offset(d->header->freelist[s], seg);
+  if (!e) {
+    freelist_clean(s, d);
+    return NULL;
+  }
+  d->header->freelist[s] = dir_next(e);
+  // if the freelist if bad, punt.
+  if (dir_offset(e)) {
+    dir_init_segment(s, d);
+    return NULL;
+  }
+  Dir *h = dir_from_offset(d->header->freelist[s], seg);
+  if (h)
+    dir_set_prev(h, 0);
+  return e;
+}
+
+int
+dir_segment_accounted(int s, Vol *d, int offby, int *f, int *u, int *et, int *v, int *av, int *as)
+{
+  int free = dir_freelist_length(d, s);
+  int used = 0, empty = 0;
+  int valid = 0, agg_valid = 0;
+  int64_t agg_size = 0;
+  Dir *seg = dir_segment(s, d);
+  for (int bi = 0; bi < d->buckets; bi++) {
+    Dir *b = dir_bucket(bi, seg);
+    Dir *e = b;
+    while (e) {
+      if (!dir_offset(e)) {
+        ink_assert(e == b);
+        empty++;
+      } else {
+        used++;
+        if (dir_valid(d, e))
+          valid++;
+        if (dir_agg_valid(d, e))
+          agg_valid++;
+        agg_size += dir_approx_size(e);
+      }
+      e = next_dir(e, seg);
+      if (!e)
+        break;
+    }
+  }
+  if (f)
+    *f = free;
+  if (u)
+    *u = used;
+  if (et)
+    *et = empty;
+  if (v)
+    *v = valid;
+  if (av)
+    *av = agg_valid;
+  if (as)
+    *as = used ? (int) (agg_size / used) : 0;
+  ink_assert(d->buckets * DIR_DEPTH - (free + used + empty) <= offby);
+  return d->buckets * DIR_DEPTH - (free + used + empty) <= offby;
+}
+
+void
+dir_free_entry(Dir *e, int s, Vol *d)
+{
+  Dir *seg = dir_segment(s, d);
+  unsigned int fo = d->header->freelist[s];
+  unsigned int eo = dir_to_offset(e, seg);
+  dir_set_next(e, fo);
+  if (fo)
+    dir_set_prev(dir_from_offset(fo, seg), eo);
+  d->header->freelist[s] = eo;
+}
+
+int
+dir_probe(CacheKey *key, Vol *d, Dir *result, Dir ** last_collision)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int s = key->word(0) % d->segments;
+  int b = key->word(1) % d->buckets;
+  Dir *seg = dir_segment(s, d);
+  Dir *e = NULL, *p = NULL, *collision = *last_collision;
+  Vol *vol = d;
+  CHECK_DIR(d);
+#ifdef LOOP_CHECK_MODE
+  if (dir_bucket_loop_fix(dir_bucket(b, seg), s, d))
+    return 0;
+#endif
+Lagain:
+  e = dir_bucket(b, seg);
+  if (dir_offset(e))
+    do {
+      if (dir_compare_tag(e, key)) {
+        ink_assert(dir_offset(e));
+        // Bug: 51680. Need to check collision before checking
+        // dir_valid(). In case of a collision, if !dir_valid(), we
+        // don't want to call dir_delete_entry.
+        if (collision) {
+          if (collision == e) {
+            collision = NULL;
+            // increment collison stat
+            // Note: dir_probe could be called multiple times
+            // for the same document and so the collision stat
+            // may not accurately reflect the number of documents
+            // having the same first_key
+            DDebug("cache_stats", "Incrementing dir collisions");
+            CACHE_INC_DIR_COLLISIONS(d->mutex);
+          }
+          goto Lcont;
+        }
+        if (dir_valid(d, e)) {
+          DDebug("dir_probe_hit", "found %X %X vol %d bucket %d boffset %" PRId64 "", key->word(0), key->word(1), d->fd, b, dir_offset(e));
+          dir_assign(result, e);
+          *last_collision = e;
+#if !TS_USE_INTERIM_CACHE
+          ink_assert(dir_offset(e) * CACHE_BLOCK_SIZE < d->len);
+#endif
+          return 1;
+        } else {                // delete the invalid entry
+          CACHE_DEC_DIR_USED(d->mutex);
+          e = dir_delete_entry(e, p, s, d);
+          continue;
+        }
+      } else
+        DDebug("dir_probe_tag", "tag mismatch %p %X vs expected %X", e, dir_tag(e), key->word(3));
+    Lcont:
+      p = e;
+      e = next_dir(e, seg);
+    } while (e);
+  if (collision) {              // last collision no longer in the list, retry
+    DDebug("cache_stats", "Incrementing dir collisions");
+    CACHE_INC_DIR_COLLISIONS(d->mutex);
+    collision = NULL;
+    goto Lagain;
+  }
+  DDebug("dir_probe_miss", "missed %X %X on vol %d bucket %d at %p", key->word(0), key->word(1), d->fd, b, seg);
+  CHECK_DIR(d);
+  return 0;
+}
+
+int
+dir_insert(CacheKey *key, Vol *d, Dir *to_part)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int s = key->word(0) % d->segments, l;
+  int bi = key->word(1) % d->buckets;
+  ink_assert(dir_approx_size(to_part) <= MAX_FRAG_SIZE + sizeofDoc);
+  Dir *seg = dir_segment(s, d);
+  Dir *e = NULL;
+  Dir *b = dir_bucket(bi, seg);
+  Vol *vol = d;
+#if defined(DEBUG) && defined(DO_CHECK_DIR_FAST)
+  unsigned int t = DIR_MASK_TAG(key->word(2));
+  Dir *col = b;
+  while (col) {
+    ink_assert((dir_tag(col) != t) || (dir_offset(col) != dir_offset(to_part)));
+    col = next_dir(col, seg);
+  }
+#endif
+  CHECK_DIR(d);
+
+Lagain:
+  // get from this row first
+  e = b;
+  if (dir_is_empty(e))
+    goto Lfill;
+  for (l = 1; l < DIR_DEPTH; l++) {
+    e = dir_bucket_row(b, l);
+    if (dir_is_empty(e)) {
+      unlink_from_freelist(e, s, d);
+      goto Llink;
+    }
+  }
+  // get one from the freelist
+  e = freelist_pop(s, d);
+  if (!e)
+    goto Lagain;
+Llink:
+#if TS_USE_INTERIM_CACHE == 1
+  dir_assign(e, b);
+#else
+  dir_set_next(e, dir_next(b));
+#endif
+  dir_set_next(b, dir_to_offset(e, seg));
+Lfill:
+#if TS_USE_INTERIM_CACHE == 1
+  dir_assign_data(b, to_part);
+  dir_set_tag(b, key->word(2));
+#else
+  dir_assign_data(e, to_part);
+  dir_set_tag(e, key->word(2));
+  ink_assert(vol_offset(d, e) < (d->skip + d->len));
+#endif
+  DDebug("dir_insert",
+        "insert %p %X into vol %d bucket %d at %p tag %X %X boffset %" PRId64 "",
+         e, key->word(0), d->fd, bi, e, key->word(1), dir_tag(e), dir_offset(e));
+  CHECK_DIR(d);
+  d->header->dirty = 1;
+  CACHE_INC_DIR_USED(d->mutex);
+  return 1;
+}
+
+int
+dir_overwrite(CacheKey *key, Vol *d, Dir *dir, Dir *overwrite, bool must_overwrite)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int s = key->word(0) % d->segments, l;
+  int bi = key->word(1) % d->buckets;
+  Dir *seg = dir_segment(s, d);
+  Dir *e = NULL;
+  Dir *b = dir_bucket(bi, seg);
+  unsigned int t = DIR_MASK_TAG(key->word(2));
+  int res = 1;
+#ifdef LOOP_CHECK_MODE
+  int loop_count = 0;
+  bool loop_possible = true;
+#endif
+  Vol *vol = d;
+  CHECK_DIR(d);
+
+  ink_assert((unsigned int) dir_approx_size(dir) <= (unsigned int) (MAX_FRAG_SIZE + sizeofDoc));        // XXX - size should be unsigned
+Lagain:
+  // find entry to overwrite
+  e = b;
+  if (dir_offset(e))
+    do {
+#ifdef LOOP_CHECK_MODE
+      loop_count++;
+      if (loop_count > DIR_LOOP_THRESHOLD && loop_possible) {
+        if (dir_bucket_loop_fix(b, s, d)) {
+          loop_possible = false;
+          goto Lagain;
+        }
+      }
+#endif
+#if TS_USE_INTERIM_CACHE == 1
+      if (dir_tag(e) == t && dir_get_offset(e) == dir_get_offset(overwrite))
+#else
+      if (dir_tag(e) == t && dir_offset(e) == dir_offset(overwrite))
+#endif
+        goto Lfill;
+      e = next_dir(e, seg);
+    } while (e);
+  if (must_overwrite)
+    return 0;
+  res = 0;
+  // get from this row first
+  e = b;
+  if (dir_is_empty(e)) {
+    CACHE_INC_DIR_USED(d->mutex);
+    goto Lfill;
+  }
+  for (l = 1; l < DIR_DEPTH; l++) {
+    e = dir_bucket_row(b, l);
+    if (dir_is_empty(e)) {
+      unlink_from_freelist(e, s, d);
+      goto Llink;
+    }
+  }
+  // get one from the freelist
+  e = freelist_pop(s, d);
+  if (!e)
+    goto Lagain;
+Llink:
+  CACHE_INC_DIR_USED(d->mutex);
+  dir_set_next(e, dir_next(b));
+  dir_set_next(b, dir_to_offset(e, seg));
+Lfill:
+  dir_assign_data(e, dir);
+  dir_set_tag(e, t);
+  ink_assert(vol_offset(d, e) < d->skip + d->len);
+  DDebug("dir_overwrite",
+        "overwrite %p %X into vol %d bucket %d at %p tag %X %X boffset %" PRId64 "",
+         e, key->word(0), d->fd, bi, e, t, dir_tag(e), dir_offset(e));
+  CHECK_DIR(d);
+  d->header->dirty = 1;
+  return res;
+}
+
+int
+dir_delete(CacheKey *key, Vol *d, Dir *del)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int s = key->word(0) % d->segments;
+  int b = key->word(1) % d->buckets;
+  Dir *seg = dir_segment(s, d);
+  Dir *e = NULL, *p = NULL;
+#ifdef LOOP_CHECK_MODE
+  int loop_count = 0;
+#endif
+  Vol *vol = d;
+  CHECK_DIR(d);
+
+  e = dir_bucket(b, seg);
+  if (dir_offset(e))
+    do {
+#ifdef LOOP_CHECK_MODE
+      loop_count++;
+      if (loop_count > DIR_LOOP_THRESHOLD) {
+        if (dir_bucket_loop_fix(dir_bucket(b, seg), s, d))
+          return 0;
+      }
+#endif
+#if TS_USE_INTERIM_CACHE == 1
+      if (dir_compare_tag(e, key) && dir_get_offset(e) == dir_get_offset(del)) {
+#else
+      if (dir_compare_tag(e, key) && dir_offset(e) == dir_offset(del)) {
+#endif
+        CACHE_DEC_DIR_USED(d->mutex);
+        dir_delete_entry(e, p, s, d);
+        CHECK_DIR(d);
+        return 1;
+      }
+      p = e;
+      e = next_dir(e, seg);
+    } while (e);
+  CHECK_DIR(d);
+  return 0;
+}
+
+// Lookaside Cache
+
+int
+dir_lookaside_probe(CacheKey *key, Vol *d, Dir *result, EvacuationBlock ** eblock)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int i = key->word(3) % LOOKASIDE_SIZE;
+  EvacuationBlock *b = d->lookaside[i].head;
+  while (b) {
+    if (b->evac_frags.key == *key) {
+      if (dir_valid(d, &b->new_dir)) {
+        *result = b->new_dir;
+        DDebug("dir_lookaside", "probe %X success", key->word(0));
+        if (eblock)
+          *eblock = b;
+        return 1;
+      }
+    }
+    b = b->link.next;
+  }
+  DDebug("dir_lookaside", "probe %X failed", key->word(0));
+  return 0;
+}
+
+int
+dir_lookaside_insert(EvacuationBlock *eblock, Vol *d, Dir *to)
+{
+  CacheKey *key = &eblock->evac_frags.earliest_key;
+  DDebug("dir_lookaside", "insert %X %X, offset %d phase %d", key->word(0), key->word(1), (int) dir_offset(to), (int) dir_phase(to));
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int i = key->word(3) % LOOKASIDE_SIZE;
+  EvacuationBlock *b = new_EvacuationBlock(d->mutex->thread_holding);
+  b->evac_frags.key = *key;
+  b->evac_frags.earliest_key = *key;
+  b->earliest_evacuator = eblock->earliest_evacuator;
+  ink_assert(b->earliest_evacuator);
+  b->dir = eblock->dir;
+  b->new_dir = *to;
+  d->lookaside[i].push(b);
+  return 1;
+}
+
+int
+dir_lookaside_fixup(CacheKey *key, Vol *d)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int i = key->word(3) % LOOKASIDE_SIZE;
+  EvacuationBlock *b = d->lookaside[i].head;
+  while (b) {
+    if (b->evac_frags.key == *key) {
+      int res = dir_overwrite(key, d, &b->new_dir, &b->dir, false);
+      DDebug("dir_lookaside", "fixup %X %X offset %" PRId64" phase %d %d",
+            key->word(0), key->word(1), dir_offset(&b->new_dir), dir_phase(&b->new_dir), res);
+#if TS_USE_INTERIM_CACHE == 1
+      int64_t o = dir_get_offset(&b->dir), n = dir_get_offset(&b->new_dir);
+#else
+      int64_t o = dir_offset(&b->dir), n = dir_offset(&b->new_dir);
+#endif
+      d->ram_cache->fixup(key, (uint32_t)(o >> 32), (uint32_t)o, (uint32_t)(n >> 32), (uint32_t)n);
+      d->lookaside[i].remove(b);
+      free_EvacuationBlock(b, d->mutex->thread_holding);
+      return res;
+    }
+    b = b->link.next;
+  }
+  DDebug("dir_lookaside", "fixup %X %X failed", key->word(0), key->word(1));
+  return 0;
+}
+
+void
+dir_lookaside_cleanup(Vol *d)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  for (int i = 0; i < LOOKASIDE_SIZE; i++) {
+    EvacuationBlock *b = d->lookaside[i].head;
+    while (b) {
+      if (!dir_valid(d, &b->new_dir)) {
+        EvacuationBlock *nb = b->link.next;
+        DDebug("dir_lookaside", "cleanup %X %X cleaned up",
+              b->evac_frags.earliest_key.word(0), b->evac_frags.earliest_key.word(1));
+        d->lookaside[i].remove(b);
+        free_CacheVC(b->earliest_evacuator);
+        free_EvacuationBlock(b, d->mutex->thread_holding);
+        b = nb;
+        goto Lagain;
+      }
+      b = b->link.next;
+    Lagain:;
+    }
+  }
+}
+
+void
+dir_lookaside_remove(CacheKey *key, Vol *d)
+{
+  ink_assert(d->mutex->thread_holding == this_ethread());
+  int i = key->word(3) % LOOKASIDE_SIZE;
+  EvacuationBlock *b = d->lookaside[i].head;
+  while (b) {
+    if (b->evac_frags.key == *key) {
+      DDebug("dir_lookaside", "remove %X %X offset %" PRId64" phase %d",
+            key->word(0), key->word(1), dir_offset(&b->new_dir), dir_phase(&b->new_dir));
+      d->lookaside[i].remove(b);
+      free_EvacuationBlock(b, d->mutex->thread_holding);
+      return;
+    }
+    b = b->link.next;
+  }
+  DDebug("dir_lookaside", "remove %X %X failed", key->word(0), key->word(1));
+  return;
+}
+
+// Cache Sync
+//
+
+void
+dir_sync_init()
+{
+  cacheDirSync = new CacheSync;
+  cacheDirSync->trigger = eventProcessor.schedule_in(cacheDirSync, HRTIME_SECONDS(cache_config_dir_sync_frequency));
+}
+
+void
+CacheSync::aio_write(int fd, char *b, int n, off_t o)
+{
+  io.aiocb.aio_fildes = fd;
+  io.aiocb.aio_offset = o;
+  io.aiocb.aio_nbytes = n;
+  io.aiocb.aio_buf = b;
+  io.action = this;
+  io.thread = AIO_CALLBACK_THREAD_ANY;
+  ink_assert(ink_aio_write(&io) >= 0);
+}
+
+uint64_t
+dir_entries_used(Vol *d)
+{
+  uint64_t full = 0;
+  uint64_t sfull = 0;
+  for (int s = 0; s < d->segments; full += sfull, s++) {
+    Dir *seg = dir_segment(s, d);
+    sfull = 0;
+    for (int b = 0; b < d->buckets; b++) {
+      Dir *e = dir_bucket(b, seg);
+      if (dir_bucket_loop_fix(e, s, d)) {
+        sfull = 0;
+        break;
+      }
+      while (e) {
+        if (dir_offset(e))
+          sfull++;
+        e = next_dir(e, seg);
+        if (!e)
+          break;
+      }
+    }
+  }
+  return full;
+}
+
+/*
+ * this function flushes the cache meta data to disk when
+ * the cache is shutdown. Must *NOT* be used during regular
+ * operation.
+ */
+
+void
+sync_cache_dir_on_shutdown(void)
+{
+  Debug("cache_dir_sync", "sync started");
+  char *buf = NULL;
+  size_t buflen = 0;
+
+  EThread *t = (EThread *) 0xdeadbeef;
+  for (int i = 0; i < gnvol; i++) {
+    // the process is going down, do a blocking call
+    // dont release the volume's lock, there could
+    // be another aggWrite in progress
+    MUTEX_TAKE_LOCK(gvol[i]->mutex, t);
+    Vol *d = gvol[i];
+
+    if (DISK_BAD(d->disk)) {
+      Debug("cache_dir_sync", "Dir %s: ignoring -- bad disk", d->hash_id);
+      continue;
+    }
+    size_t dirlen = vol_dirlen(d);
+    if (!d->header->dirty && !d->dir_sync_in_progress) {
+      Debug("cache_dir_sync", "Dir %s: ignoring -- not dirty", d->hash_id);
+      continue;
+    }
+    // recompute hit_evacuate_window
+    d->hit_evacuate_window = (d->data_blocks * cache_config_hit_evacuate_percent) / 100;
+
+
+    // check if we have data in the agg buffer
+    // dont worry about the cachevc s in the agg queue
+    // directories have not been inserted for these writes
+    if (d->agg_buf_pos) {
+      Debug("cache_dir_sync", "Dir %s: flushing agg buffer first", d->hash_id);
+
+      // set write limit
+      d->header->agg_pos = d->header->write_pos + d->agg_buf_pos;
+
+      int r = pwrite(d->fd, d->agg_buffer, d->agg_buf_pos,
+                     d->header->write_pos);
+      if (r != d->agg_buf_pos) {
+        ink_assert(!"flusing agg buffer failed");
+        continue;
+      }
+      d->header->last_write_pos = d->header->write_pos;
+      d->header->write_pos += d->agg_buf_pos;
+      ink_assert(d->header->write_pos == d->header->agg_pos);
+      d->agg_buf_pos = 0;
+      d->header->write_serial++;
+    }
+
+#if TS_USE_INTERIM_CACHE == 1
+    for (int i = 0; i < d->num_interim_vols; i++) {
+      InterimCacheVol *sv = &(d->interim_vols[i]);
+      if (sv->agg_buf_pos) {
+        Debug("cache_dir_sync", "Dir %s: flushing agg buffer first to interim", d->hash_id);
+        sv->header->agg_pos = sv->header->write_pos + sv->agg_buf_pos;
+
+        int r = pwrite(sv->fd, sv->agg_buffer, sv->agg_buf_pos, sv->header->write_pos);
+        if (r != sv->agg_buf_pos) {
+          ink_assert(!"flusing agg buffer failed to interim");
+          continue;
+        }
+        sv->header->last_write_pos = sv->header->write_pos;
+        sv->header->write_pos += sv->agg_buf_pos;
+        ink_assert(sv->header->write_pos == sv->header->agg_pos);
+        sv->agg_buf_pos = 0;
+        sv->header->write_serial++;
+      }
+    }
+#endif
+
+    if (buflen < dirlen) {
+      if (buf)
+        ats_memalign_free(buf);
+      buf = (char *)ats_memalign(ats_pagesize(), dirlen);
+      buflen = dirlen;
+    }
+
+    if (!d->dir_sync_in_progress) {
+      d->header->sync_serial++;
+    } else {
+      Debug("cache_dir_sync", "Periodic dir sync in progress -- overwriting");
+    }
+    d->footer->sync_serial = d->header->sync_serial;
+
+#if TS_USE_INTERIM_CACHE == 1
+    for (int j = 0; j < d->num_interim_vols; j++) {
+      d->interim_vols[j].header->sync_serial = d->header->sync_serial;
+    }
+#endif
+    CHECK_DIR(d);
+    memcpy(buf, d->raw_dir, dirlen);
+    size_t B = d->header->sync_serial & 1;
+    off_t start = d->skip + (B ? dirlen : 0);
+    B = pwrite(d->fd, buf, dirlen, start);
+    ink_assert(B == dirlen);
+    Debug("cache_dir_sync", "done syncing dir for vol %s", d->hash_id);
+  }
+  Debug("cache_dir_sync", "sync done");
+  if (buf)
+    ats_memalign_free(buf);
+}
+
+
+
+int
+CacheSync::mainEvent(int event, Event *e)
+{
+  if (trigger) {
+    trigger->cancel_action();
+    trigger = NULL;
+  }
+
+Lrestart:
+  if (vol >= gnvol) {
+    vol = 0;
+    if (buf) {
+      ats_memalign_free(buf);
+      buf = 0;
+      buflen = 0;
+    }
+    Debug("cache_dir_sync", "sync done");
+    if (event == EVENT_INTERVAL)
+      trigger = e->ethread->schedule_in(this, HRTIME_SECONDS(cache_config_dir_sync_frequency));
+    else
+      trigger = eventProcessor.schedule_in(this, HRTIME_SECONDS(cache_config_dir_sync_frequency));
+    return EVENT_CONT;
+  }
+  if (event == AIO_EVENT_DONE) {
+    // AIO Thread
+    if (io.aio_result != (int64_t)io.aiocb.aio_nbytes) {
+      Warning("vol write error during directory sync '%s'", gvol[vol]->hash_id);
+      event = EVENT_NONE;
+      goto Ldone;
+    }
+    trigger = eventProcessor.schedule_in(this, SYNC_DELAY);
+    return EVENT_CONT;
+  }
+  {
+    CACHE_TRY_LOCK(lock, gvol[vol]->mutex, mutex->thread_holding);
+    if (!lock) {
+      trigger = eventProcessor.schedule_in(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+      return EVENT_CONT;
+    }
+    Vol *d = gvol[vol];
+
+    // recompute hit_evacuate_window
+    d->hit_evacuate_window = (d->data_blocks * cache_config_hit_evacuate_percent) / 100;
+
+    if (DISK_BAD(d->disk))
+      goto Ldone;
+
+    int headerlen = ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter));
+    size_t dirlen = vol_dirlen(d);
+    if (!writepos) {
+      // start
+      Debug("cache_dir_sync", "sync started");
+      /* Don't sync the directory to disk if its not dirty. Syncing the
+         clean directory to disk is also the cause of INKqa07151. Increasing
+         the serial serial causes the cache to recover more data
+         than necessary.
+         The dirty bit it set in dir_insert, dir_overwrite and dir_delete_entry
+       */
+      if (!d->header->dirty) {
+        Debug("cache_dir_sync", "Dir %s not dirty", d->hash_id);
+        goto Ldone;
+      }
+      if (d->is_io_in_progress() || d->agg_buf_pos) {
+        Debug("cache_dir_sync", "Dir %s: waiting for agg buffer", d->hash_id);
+        d->dir_sync_waiting = 1;
+        if (!d->is_io_in_progress())
+          d->aggWrite(EVENT_IMMEDIATE, 0);
+#if TS_USE_INTERIM_CACHE == 1
+        for (int i = 0; i < d->num_interim_vols; i++) {
+          if (!d->interim_vols[i].is_io_in_progress()) {
+            d->interim_vols[i].sync = true;
+            d->interim_vols[i].aggWrite(EVENT_IMMEDIATE, 0);
+          }
+        }
+#endif
+        return EVENT_CONT;
+      }
+      Debug("cache_dir_sync", "pos: %" PRIu64 " Dir %s dirty...syncing to disk", d->header->write_pos, d->hash_id);
+      d->header->dirty = 0;
+      if (buflen < dirlen) {
+        if (buf)
+          ats_memalign_free(buf);
+        buf = (char *)ats_memalign(ats_pagesize(), dirlen);
+        buflen = dirlen;
+      }
+      d->header->sync_serial++;
+      d->footer->sync_serial = d->header->sync_serial;
+#if TS_USE_INTERIM_CACHE == 1
+      for (int j = 0; j < d->num_interim_vols; j++) {
+          d->interim_vols[j].header->sync_serial = d->header->sync_serial;
+      }
+#endif
+      CHECK_DIR(d);
+      memcpy(buf, d->raw_dir, dirlen);
+      d->dir_sync_in_progress = 1;
+    }
+    size_t B = d->header->sync_serial & 1;
+    off_t start = d->skip + (B ? dirlen : 0);
+
+    if (!writepos) {
+      // write header
+      aio_write(d->fd, buf + writepos, headerlen, start + writepos);
+      writepos += headerlen;
+    } else if (writepos < (off_t)dirlen - headerlen) {
+      // write part of body
+      int l = SYNC_MAX_WRITE;
+      if (writepos + l > (off_t)dirlen - headerlen)
+        l = dirlen - headerlen - writepos;
+      aio_write(d->fd, buf + writepos, l, start + writepos);
+      writepos += l;
+    } else if (writepos < (off_t)dirlen) {
+      ink_assert(writepos == (off_t)dirlen - headerlen);
+      // write footer
+      aio_write(d->fd, buf + writepos, headerlen, start + writepos);
+      writepos += headerlen;
+    } else {
+      d->dir_sync_in_progress = 0;
+      goto Ldone;
+    }
+    return EVENT_CONT;
+  }
+Ldone:
+  // done
+  writepos = 0;
+  vol++;
+  goto Lrestart;
+}
+
+//
+// Check
+//
+
+#define HIST_DEPTH 8
+int
+Vol::dir_check(bool /* fix ATS_UNUSED */) // TODO: we should eliminate this parameter ?
+{
+  int hist[HIST_DEPTH + 1] = { 0 };
+  int *shist = (int*)ats_malloc(segments * sizeof(int));
+  memset(shist, 0, segments * sizeof(int));
+  int j;
+  int stale = 0, full = 0, empty = 0;
+  int last = 0, free = 0;
+  for (int s = 0; s < segments; s++) {
+    Dir *seg = dir_segment(s, this);
+    for (int b = 0; b < buckets; b++) {
+      int h = 0;
+      Dir *e = dir_bucket(b, seg);
+      while (e) {
+        if (!dir_offset(e))
+          empty++;
+        else {
+          h++;
+          if (!dir_valid(this, e))
+            stale++;
+          else
+            full++;
+        }
+        e = next_dir(e, seg);
+        if (!e)
+          break;
+      }
+      if (h > HIST_DEPTH)
+        h = HIST_DEPTH;
+      hist[h]++;
+    }
+    int t = stale + full;
+    shist[s] = t - last;
+    last = t;
+    free += dir_freelist_length(this, s);
+  }
+  int total = buckets * segments * DIR_DEPTH;
+  printf("    Directory for [%s]\n", hash_id);
+  printf("        Bytes:     %d\n", total * SIZEOF_DIR);
+  printf("        Segments:  %" PRIu64 "\n", (uint64_t)segments);
+  printf("        Buckets:   %" PRIu64 "\n", (uint64_t)buckets);
+  printf("        Entries:   %d\n", total);
+  printf("        Full:      %d\n", full);
+  printf("        Empty:     %d\n", empty);
+  printf("        Stale:     %d\n", stale);
+  printf("        Free:      %d\n", free);
+  printf("        Bucket Fullness:   ");
+  for (j = 0; j < HIST_DEPTH; j++) {
+    printf("%8d ", hist[j]);
+    if ((j % 4 == 3))
+      printf("\n" "                           ");
+  }
+  printf("\n");
+  printf("        Segment Fullness:  ");
+  for (j = 0; j < segments; j++) {
+    printf("%5d ", shist[j]);
+    if ((j % 5 == 4))
+      printf("\n" "                           ");
+  }
+  printf("\n");
+  printf("        Freelist Fullness: ");
+  for (j = 0; j < segments; j++) {
+    printf("%5d ", dir_freelist_length(this, j));
+    if ((j % 5 == 4))
+      printf("\n" "                           ");
+  }
+  printf("\n");
+  ats_free(shist);
+  return 0;
+}
+
+//
+// Static Tables
+//
+
+// permutation table
+uint8_t CacheKey_next_table[256] = {
+  21, 53, 167, 51, 255, 126, 241, 151,
+  115, 66, 155, 174, 226, 215, 80, 188,
+  12, 95, 8, 24, 162, 201, 46, 104,
+  79, 172, 39, 68, 56, 144, 142, 217,
+  101, 62, 14, 108, 120, 90, 61, 47,
+  132, 199, 110, 166, 83, 125, 57, 65,
+  19, 130, 148, 116, 228, 189, 170, 1,
+  71, 0, 252, 184, 168, 177, 88, 229,
+  242, 237, 183, 55, 13, 212, 240, 81,
+  211, 74, 195, 205, 147, 93, 30, 87,
+  86, 63, 135, 102, 233, 106, 118, 163,
+  107, 10, 243, 136, 160, 119, 43, 161,
+  206, 141, 203, 78, 175, 36, 37, 140,
+  224, 197, 185, 196, 248, 84, 122, 73,
+  152, 157, 18, 225, 219, 145, 45, 2,
+  171, 249, 173, 32, 143, 137, 69, 41,
+  35, 89, 33, 98, 179, 214, 114, 231,
+  251, 123, 180, 194, 29, 3, 178, 31,
+  192, 164, 15, 234, 26, 230, 91, 156,
+  5, 16, 23, 244, 58, 50, 4, 67,
+  134, 165, 60, 235, 250, 7, 138, 216,
+  49, 139, 191, 154, 11, 52, 239, 59,
+  111, 245, 9, 64, 25, 129, 247, 232,
+  190, 246, 109, 22, 112, 210, 221, 181,
+  92, 169, 48, 100, 193, 77, 103, 133,
+  70, 220, 207, 223, 176, 204, 76, 186,
+  200, 208, 158, 182, 227, 222, 131, 38,
+  187, 238, 6, 34, 253, 128, 146, 44,
+  94, 127, 105, 153, 113, 20, 27, 124,
+  159, 17, 72, 218, 96, 149, 213, 42,
+  28, 254, 202, 40, 117, 82, 97, 209,
+  54, 236, 121, 75, 85, 150, 99, 198,
+};
+
+// permutation table
+uint8_t CacheKey_prev_table[256] = {
+  57, 55, 119, 141, 158, 152, 218, 165,
+  18, 178, 89, 172, 16, 68, 34, 146,
+  153, 233, 114, 48, 229, 0, 187, 154,
+  19, 180, 148, 230, 240, 140, 78, 143,
+  123, 130, 219, 128, 101, 102, 215, 26,
+  243, 127, 239, 94, 223, 118, 22, 39,
+  194, 168, 157, 3, 173, 1, 248, 67,
+  28, 46, 156, 175, 162, 38, 33, 81,
+  179, 47, 9, 159, 27, 126, 200, 56,
+  234, 111, 73, 251, 206, 197, 99, 24,
+  14, 71, 245, 44, 109, 252, 80, 79,
+  62, 129, 37, 150, 192, 77, 224, 17,
+  236, 246, 131, 254, 195, 32, 83, 198,
+  23, 226, 85, 88, 35, 186, 42, 176,
+  188, 228, 134, 8, 51, 244, 86, 93,
+  36, 250, 110, 137, 231, 45, 5, 225,
+  221, 181, 49, 214, 40, 199, 160, 82,
+  91, 125, 166, 169, 103, 97, 30, 124,
+  29, 117, 222, 76, 50, 237, 253, 7,
+  112, 227, 171, 10, 151, 113, 210, 232,
+  92, 95, 20, 87, 145, 161, 43, 2,
+  60, 193, 54, 120, 25, 122, 11, 100,
+  204, 61, 142, 132, 138, 191, 211, 66,
+  59, 106, 207, 216, 15, 53, 184, 170,
+  144, 196, 139, 74, 107, 105, 255, 41,
+  208, 21, 242, 98, 205, 75, 96, 202,
+  209, 247, 189, 72, 69, 238, 133, 13,
+  167, 31, 235, 116, 201, 190, 213, 203,
+  104, 115, 12, 212, 52, 63, 149, 135,
+  183, 84, 147, 163, 249, 65, 217, 174,
+  70, 6, 64, 90, 155, 177, 185, 182,
+  108, 121, 164, 136, 58, 220, 241, 4,
+};
+
+//
+// Regression
+//
+unsigned int regress_rand_seed = 0;
+void
+regress_rand_init(unsigned int i)
+{
+  regress_rand_seed = i;
+}
+
+void
+regress_rand_CacheKey(CacheKey *key)
+{
+  unsigned int *x = (unsigned int *) key;
+  for (int i = 0; i < 4; i++)
+    x[i] = next_rand(&regress_rand_seed);
+}
+
+void
+dir_corrupt_bucket(Dir *b, int s, Vol *d)
+{
+  // coverity[secure_coding]
+  int l = ((int) (dir_bucket_length(b, s, d) * drand48()));
+  Dir *e = b;
+  Dir *seg = dir_segment(s, d);
+  for (int i = 0; i < l; i++) {
+    ink_release_assert(e);
+    e = next_dir(e, seg);
+  }
+  dir_set_next(e, dir_to_offset(e, seg));
+}
+
+EXCLUSIVE_REGRESSION_TEST(Cache_dir) (RegressionTest *t, int /* atype ATS_UNUSED */, int *status) {
+  ink_hrtime ttime;
+  int ret = REGRESSION_TEST_PASSED;
+
+  if ((CacheProcessor::IsCacheEnabled() != CACHE_INITIALIZED) || gnvol < 1) {
+    rprintf(t, "cache not ready/configured");
+    *status = REGRESSION_TEST_FAILED;
+    return;
+  }
+  Vol *d = gvol[0];
+  EThread *thread = this_ethread();
+  MUTEX_TRY_LOCK(lock, d->mutex, thread);
+  ink_release_assert(lock);
+  rprintf(t, "clearing vol 0\n", free);
+  vol_dir_clear(d);
+
+  // coverity[var_decl]
+  Dir dir;
+  dir_clear(&dir);
+  dir_set_phase(&dir, 0);
+  dir_set_head(&dir, true);
+  dir_set_offset(&dir, 1);
+
+  d->header->agg_pos = d->header->write_pos += 1024;
+
+  CacheKey key;
+  rand_CacheKey(&key, thread->mutex);
+
+  int s = key.word(0) % d->segments, i, j;
+  Dir *seg = dir_segment(s, d);
+
+  // test insert
+  rprintf(t, "insert test\n", free);
+  int inserted = 0;
+  int free = dir_freelist_length(d, s);
+  int n = free;
+  rprintf(t, "free: %d\n", free);
+  while (n--) {
+    if (!dir_insert(&key, d, &dir))
+      break;
+    inserted++;
+  }
+  rprintf(t, "inserted: %d\n", inserted);
+  if ((unsigned int) (inserted - free) > 1)
+    ret = REGRESSION_TEST_FAILED;
+
+  // test delete
+  rprintf(t, "delete test\n");
+  for (i = 0; i < d->buckets; i++)
+    for (j = 0; j < DIR_DEPTH; j++)
+      dir_set_offset(dir_bucket_row(dir_bucket(i, seg), j), 0); // delete
+  dir_clean_segment(s, d);
+  int newfree = dir_freelist_length(d, s);
+  rprintf(t, "newfree: %d\n", newfree);
+  if ((unsigned int) (newfree - free) > 1)
+    ret = REGRESSION_TEST_FAILED;
+
+  // test insert-delete
+  rprintf(t, "insert-delete test\n");
+  regress_rand_init(13);
+  ttime = ink_get_hrtime_internal();
+  for (i = 0; i < newfree; i++) {
+    regress_rand_CacheKey(&key);
+    dir_insert(&key, d, &dir);
+  }
+  uint64_t us = (ink_get_hrtime_internal() - ttime) / HRTIME_USECOND;
+  //On windows us is sometimes 0. I don't know why.
+  //printout the insert rate only if its not 0
+  if (us)
+    rprintf(t, "insert rate = %d / second\n", (int) ((newfree * (uint64_t) 1000000) / us));
+  regress_rand_init(13);
+  ttime = ink_get_hrtime_internal();
+  for (i = 0; i < newfree; i++) {
+    Dir *last_collision = 0;
+    regress_rand_CacheKey(&key);
+    if (!dir_probe(&key, d, &dir, &last_collision))
+      ret = REGRESSION_TEST_FAILED;
+  }
+  us = (ink_get_hrtime_internal() - ttime) / HRTIME_USECOND;
+  //On windows us is sometimes 0. I don't know why.
+  //printout the probe rate only if its not 0
+  if (us)
+    rprintf(t, "probe rate = %d / second\n", (int) ((newfree * (uint64_t) 1000000) / us));
+
+
+  for (int c = 0; c < vol_direntries(d) * 0.75; c++) {
+    regress_rand_CacheKey(&key);
+    dir_insert(&key, d, &dir);
+  }
+
+
+  Dir dir1;
+  memset(&dir1, 0, sizeof(dir1));
+  int s1, b1;
+
+  rprintf(t, "corrupt_bucket test\n");
+  for (int ntimes = 0; ntimes < 10; ntimes++) {
+#ifdef LOOP_CHECK_MODE
+    // dir_probe in bucket with loop
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    b1 = key.word(1) % d->buckets;
+    dir_corrupt_bucket(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+    dir_insert(&key, d, &dir);
+    Dir *last_collision = 0;
+    dir_probe(&key, d, &dir, &last_collision);
+
+
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    b1 = key.word(1) % d->buckets;
+    dir_corrupt_bucket(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+
+    last_collision = 0;
+    dir_probe(&key, d, &dir, &last_collision);
+
+    // dir_overwrite in bucket with loop
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    b1 = key.word(1) % d->buckets;
+    CacheKey key1;
+    key1.b[1] = 127;
+    dir1 = dir;
+    dir_set_offset(&dir1, 23);
+    dir_insert(&key1, d, &dir1);
+    dir_insert(&key, d, &dir);
+    key1.b[1] = 80;
+    dir_insert(&key1, d, &dir1);
+    dir_corrupt_bucket(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+    dir_overwrite(&key, d, &dir, &dir, 1);
+
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    b1 = key.word(1) % d->buckets;
+    key.b[1] = 23;
+    dir_insert(&key, d, &dir1);
+    dir_corrupt_bucket(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+    dir_overwrite(&key, d, &dir, &dir, 0);
+
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    Dir *seg1 = dir_segment(s1, d);
+    // dir_freelist_length in freelist with loop
+    dir_corrupt_bucket(dir_from_offset(d->header->freelist[s], seg1), s1, d);
+    dir_freelist_length(d, s1);
+
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    b1 = key.word(1) % d->buckets;
+    // dir_bucket_length in bucket with loop
+    dir_corrupt_bucket(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+    dir_bucket_length(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+    if (!check_dir(d))
+      ret = REGRESSION_TEST_FAILED;
+#else
+    // test corruption detection
+    rand_CacheKey(&key, thread->mutex);
+    s1 = key.word(0) % d->segments;
+    b1 = key.word(1) % d->buckets;
+
+    dir_insert(&key, d, &dir1);
+    dir_insert(&key, d, &dir1);
+    dir_insert(&key, d, &dir1);
+    dir_insert(&key, d, &dir1);
+    dir_insert(&key, d, &dir1);
+    dir_corrupt_bucket(dir_bucket(b1, dir_segment(s1, d)), s1, d);
+    if (check_dir(d))
+      ret = REGRESSION_TEST_FAILED;
+#endif
+  }
+  vol_dir_clear(d);
+  *status = ret;
+}
diff --git a/iocore/cache/CacheDisk.cc b/iocore/cache/CacheDisk.cc
new file mode 100644
index 00000000..7edc4c2f
--- /dev/null
+++ b/iocore/cache/CacheDisk.cc
@@ -0,0 +1,411 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+
+
+int
+CacheDisk::open(char *s, off_t blocks, off_t askip, int ahw_sector_size, int fildes, bool clear)
+{
+  path = ats_strdup(s);
+  hw_sector_size = ahw_sector_size;
+  fd = fildes;
+  skip = askip;
+  start = skip;
+  /* we can't use fractions of store blocks. */
+  len = blocks;
+  io.aiocb.aio_fildes = fd;
+  io.aiocb.aio_reqprio = 0;
+  io.action = this;
+  // determine header size and hence start point by successive approximation
+  uint64_t l;
+  for (int i = 0; i < 3; i++) {
+    l = (len * STORE_BLOCK_SIZE) - (start - skip);
+    if (l >= MIN_VOL_SIZE) {
+      header_len = sizeof(DiskHeader) + (l / MIN_VOL_SIZE - 1) * sizeof(DiskVolBlock);
+    } else {
+      header_len = sizeof(DiskHeader);
+    }
+    start = skip + header_len;
+  }
+
+  disk_vols = (DiskVol **)ats_malloc((l / MIN_VOL_SIZE + 1) * sizeof(DiskVol **));
+  memset(disk_vols, 0, (l / MIN_VOL_SIZE + 1) * sizeof(DiskVol **));
+  header_len = ROUND_TO_STORE_BLOCK(header_len);
+  start = skip + header_len;
+  num_usable_blocks = (off_t(len * STORE_BLOCK_SIZE) - (start - askip)) >> STORE_BLOCK_SHIFT;
+
+  header = (DiskHeader *)ats_memalign(ats_pagesize(), header_len);
+  memset(header, 0, header_len);
+  if (clear) {
+    SET_HANDLER(&CacheDisk::clearDone);
+    return clearDisk();
+  }
+
+  SET_HANDLER(&CacheDisk::openStart);
+  io.aiocb.aio_offset = skip;
+  io.aiocb.aio_buf = (char *) header;
+  io.aiocb.aio_nbytes = header_len;
+  io.thread = AIO_CALLBACK_THREAD_ANY;
+  ink_aio_read(&io);
+  return 0;
+}
+
+CacheDisk::~CacheDisk()
+{
+  if (path) {
+    ats_free(path);
+    for (int i = 0; i < (int) header->num_volumes; i++) {
+      DiskVolBlockQueue *q = NULL;
+      while (disk_vols[i] && (q = (disk_vols[i]->dpb_queue.pop()))) {
+        delete q;
+      }
+    }
+    ats_free(disk_vols);
+    free(header);
+  }
+  if (free_blocks) {
+    DiskVolBlockQueue *q = NULL;
+    while ((q = (free_blocks->dpb_queue.pop()))) {
+      delete q;
+    }
+    delete free_blocks;
+  }
+}
+
+int
+CacheDisk::clearDisk()
+{
+  delete_all_volumes();
+
+  io.aiocb.aio_offset = skip;
+  io.aiocb.aio_buf = header;
+  io.aiocb.aio_nbytes = header_len;
+  io.thread = AIO_CALLBACK_THREAD_ANY;
+  ink_aio_write(&io);
+  return 0;
+}
+
+int
+CacheDisk::clearDone(int event, void * /* data ATS_UNUSED */)
+{
+  ink_assert(event == AIO_EVENT_DONE);
+
+  if ((size_t) io.aiocb.aio_nbytes != (size_t) io.aio_result) {
+    Warning("Could not clear disk header for disk %s: declaring disk bad", path);
+    SET_DISK_BAD(this);
+  }
+//  update_header();
+
+  SET_HANDLER(&CacheDisk::openDone);
+  return openDone(EVENT_IMMEDIATE, 0);
+}
+
+int
+CacheDisk::openStart(int event, void * /* data ATS_UNUSED */)
+{
+  ink_assert(event == AIO_EVENT_DONE);
+
+  if ((size_t) io.aiocb.aio_nbytes != (size_t) io.aio_result) {
+    Warning("could not read disk header for disk %s: declaring disk bad", path);
+    SET_DISK_BAD(this);
+    SET_HANDLER(&CacheDisk::openDone);
+    return openDone(EVENT_IMMEDIATE, 0);
+  }
+
+  if (header->magic != DISK_HEADER_MAGIC || header->num_blocks != (uint64_t)len) {
+    Warning("disk header different for disk %s: clearing the disk", path);
+    SET_HANDLER(&CacheDisk::clearDone);
+    clearDisk();
+    return EVENT_DONE;
+  }
+
+  cleared = 0;
+  /* populate disk_vols */
+  update_header();
+
+  SET_HANDLER(&CacheDisk::openDone);
+  return openDone(EVENT_IMMEDIATE, 0);
+}
+
+int
+CacheDisk::openDone(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  if (cacheProcessor.start_done) {
+    SET_HANDLER(&CacheDisk::syncDone);
+    cacheProcessor.diskInitialized();
+    return EVENT_DONE;
+  } else {
+    eventProcessor.schedule_in(this, HRTIME_MSECONDS(5), ET_CALL);
+    return EVENT_CONT;
+  }
+}
+
+int
+CacheDisk::sync()
+{
+  io.aiocb.aio_offset = skip;
+  io.aiocb.aio_buf = header;
+  io.aiocb.aio_nbytes = header_len;
+  io.thread = AIO_CALLBACK_THREAD_ANY;
+  ink_aio_write(&io);
+  return 0;
+}
+
+int
+CacheDisk::syncDone(int event, void * /* data ATS_UNUSED */)
+{
+  ink_assert(event == AIO_EVENT_DONE);
+
+  if ((size_t) io.aiocb.aio_nbytes != (size_t) io.aio_result) {
+    Warning("Error writing disk header for disk %s:disk bad", path);
+    SET_DISK_BAD(this);
+    return EVENT_DONE;
+  }
+
+  return EVENT_DONE;
+}
+
+/* size is in store blocks */
+DiskVolBlock *
+CacheDisk::create_volume(int number, off_t size_in_blocks, int scheme)
+{
+  if (size_in_blocks == 0)
+    return NULL;
+
+  DiskVolBlockQueue *q = free_blocks->dpb_queue.head;
+  DiskVolBlockQueue *closest_match = q;
+
+  if (!q)
+    return NULL;
+
+  off_t max_blocks = MAX_VOL_SIZE >> STORE_BLOCK_SHIFT;
+  size_in_blocks = (size_in_blocks <= max_blocks) ? size_in_blocks : max_blocks;
+
+  int blocks_per_vol = VOL_BLOCK_SIZE / STORE_BLOCK_SIZE;
+//  ink_assert(!(size_in_blocks % blocks_per_vol));
+  DiskVolBlock *p = 0;
+  for (; q; q = q->link.next) {
+    if ((off_t)q->b->len >= size_in_blocks) {
+      p = q->b;
+      q->new_block = 1;
+      break;
+    } else {
+      if (closest_match->b->len < q->b->len)
+        closest_match = q;
+    }
+  }
+
+  if (!p && !closest_match)
+    return NULL;
+
+  if (!p && closest_match) {
+    /* allocate from the closest match */
+    q = closest_match;
+    p = q->b;
+    q->new_block = 1;
+    ink_assert(size_in_blocks > (off_t) p->len);
+    /* allocate in 128 megabyte chunks. The Remaining space should
+       be thrown away */
+    size_in_blocks = (p->len - (p->len % blocks_per_vol));
+    wasted_space += p->len % blocks_per_vol;
+  }
+
+  free_blocks->dpb_queue.remove(q);
+  free_space -= p->len;
+  free_blocks->size -= p->len;
+
+  size_t new_size = p->len - size_in_blocks;
+  if (new_size >= (size_t)blocks_per_vol) {
+    /* create a new volume */
+    DiskVolBlock *dpb = &header->vol_info[header->num_diskvol_blks];
+    *dpb = *p;
+    dpb->len -= size_in_blocks;
+    dpb->offset += ((off_t) size_in_blocks * STORE_BLOCK_SIZE);
+
+    DiskVolBlockQueue *new_q = new DiskVolBlockQueue();
+    new_q->b = dpb;
+    free_blocks->dpb_queue.enqueue(new_q);
+    free_blocks->size += dpb->len;
+    free_space += dpb->len;
+    header->num_diskvol_blks++;
+  } else
+    header->num_free--;
+
+  p->len = size_in_blocks;
+  p->free = 0;
+  p->number = number;
+  p->type = scheme;
+  header->num_used++;
+
+  unsigned int i;
+  /* add it to its disk_vol */
+  for (i = 0; i < header->num_volumes; i++) {
+    if (disk_vols[i]->vol_number == number) {
+      disk_vols[i]->dpb_queue.enqueue(q);
+      disk_vols[i]->num_volblocks++;
+      disk_vols[i]->size += q->b->len;
+      break;
+    }
+  }
+  if (i == header->num_volumes) {
+    disk_vols[i] = new DiskVol();
+    disk_vols[i]->num_volblocks = 1;
+    disk_vols[i]->vol_number = number;
+    disk_vols[i]->disk = this;
+    disk_vols[i]->dpb_queue.enqueue(q);
+    disk_vols[i]->size = q->b->len;
+    header->num_volumes++;
+  }
+  return p;
+}
+
+
+int
+CacheDisk::delete_volume(int number)
+{
+  unsigned int i;
+  for (i = 0; i < header->num_volumes; i++) {
+    if (disk_vols[i]->vol_number == number) {
+
+      DiskVolBlockQueue *q;
+      for (q = disk_vols[i]->dpb_queue.head; q;) {
+        DiskVolBlock *p = q->b;
+        p->type = CACHE_NONE_TYPE;
+        p->free = 1;
+        free_space += p->len;
+        header->num_free++;
+        header->num_used--;
+        DiskVolBlockQueue *temp_q = q->link.next;
+        disk_vols[i]->dpb_queue.remove(q);
+        free_blocks->dpb_queue.enqueue(q);
+        q = temp_q;
+      }
+      free_blocks->num_volblocks += disk_vols[i]->num_volblocks;
+      free_blocks->size += disk_vols[i]->size;
+
+      delete disk_vols[i];
+      /* move all the other disk vols */
+      for (unsigned int j = i; j < (header->num_volumes - 1); j++) {
+        disk_vols[j] = disk_vols[j + 1];
+      }
+      header->num_volumes--;
+      return 0;
+    }
+  }
+  return -1;
+}
+
+void
+CacheDisk::update_header()
+{
+  unsigned int n = 0;
+  unsigned int i, j;
+  if (free_blocks) {
+    DiskVolBlockQueue *q = NULL;
+    while ((q = (free_blocks->dpb_queue.pop()))) {
+      delete q;
+    }
+    delete free_blocks;
+  }
+  free_blocks = new DiskVol();
+  free_blocks->vol_number = -1;
+  free_blocks->disk = this;
+  free_blocks->num_volblocks = 0;
+  free_blocks->size = 0;
+  free_space = 0;
+
+  for (i = 0; i < header->num_diskvol_blks; i++) {
+    DiskVolBlockQueue *dpbq = new DiskVolBlockQueue();
+    bool dpbq_referenced = false;
+    dpbq->b = &header->vol_info[i];
+    if (header->vol_info[i].free) {
+      free_blocks->num_volblocks++;
+      free_blocks->size += dpbq->b->len;
+      free_blocks->dpb_queue.enqueue(dpbq);
+      dpbq_referenced = true;
+      free_space += dpbq->b->len;
+      continue;
+    }
+    int vol_number = header->vol_info[i].number;
+    for (j = 0; j < n; j++) {
+      if (disk_vols[j]->vol_number == vol_number) {
+        disk_vols[j]->dpb_queue.enqueue(dpbq);
+        dpbq_referenced = true;
+        disk_vols[j]->num_volblocks++;
+        disk_vols[j]->size += dpbq->b->len;
+        break;
+      }
+    }
+    if (j == n) {
+      // did not find a matching volume number. create a new
+      // one
+      disk_vols[j] = new DiskVol();
+      disk_vols[j]->vol_number = vol_number;
+      disk_vols[j]->disk = this;
+      disk_vols[j]->num_volblocks = 1;
+      disk_vols[j]->size = dpbq->b->len;
+      disk_vols[j]->dpb_queue.enqueue(dpbq);
+      dpbq_referenced = true;
+      n++;
+    }
+    // check to see if we even used the dpbq allocated
+    if (dpbq_referenced == false) {
+      delete dpbq;
+    }
+  }
+
+  ink_assert(n == header->num_volumes);
+}
+
+DiskVol *
+CacheDisk::get_diskvol(int vol_number)
+{
+  unsigned int i;
+  for (i = 0; i < header->num_volumes; i++) {
+    if (disk_vols[i]->vol_number == vol_number) {
+      return disk_vols[i];
+    }
+  }
+  return NULL;
+}
+
+int
+CacheDisk::delete_all_volumes()
+{
+  header->vol_info[0].offset = start;
+  header->vol_info[0].len = num_usable_blocks;
+  header->vol_info[0].type = CACHE_NONE_TYPE;
+  header->vol_info[0].free = 1;
+
+  header->magic = DISK_HEADER_MAGIC;
+  header->num_used = 0;
+  header->num_volumes = 0;
+  header->num_free = 1;
+  header->num_diskvol_blks = 1;
+  header->num_blocks = len;
+  cleared = 1;
+  update_header();
+
+  return 0;
+}
diff --git a/iocore/cache/CacheHosting.cc b/iocore/cache/CacheHosting.cc
new file mode 100644
index 00000000..dabbef61
--- /dev/null
+++ b/iocore/cache/CacheHosting.cc
@@ -0,0 +1,1202 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+#include "I_Layout.h"
+
+extern int gndisks;
+
+matcher_tags CacheHosting_tags = {
+  "hostname", "domain"
+};
+
+
+bool alarmAlready = false;
+
+/*************************************************************
+ *   Begin class HostMatcher
+ *************************************************************/
+
+CacheHostMatcher::CacheHostMatcher(const char * name, CacheType typ):
+data_array(NULL),
+array_len(-1),
+num_el(-1),
+type(typ)
+{
+  host_lookup = new HostLookup(name);
+}
+
+CacheHostMatcher::~CacheHostMatcher()
+{
+
+  delete host_lookup;
+  delete[]data_array;
+}
+
+//
+// template <class Data,class Result>
+// void HostMatcher<Data,Result>::Print()
+//
+//  Debugging Method
+//
+void
+CacheHostMatcher::Print()
+{
+
+  printf("\tHost/Domain Matcher with %d elements\n", num_el);
+  host_lookup->Print(PrintFunc);
+}
+
+//
+// template <class Data,class Result>
+// void CacheHostMatcher::PrintFunc(void* opaque_data)
+//
+//  Debugging Method
+//
+void
+CacheHostMatcher::PrintFunc(void *opaque_data)
+{
+  CacheHostRecord *d = (CacheHostRecord *) opaque_data;
+  d->Print();
+}
+
+// void CacheHostMatcher::AllocateSpace(int num_entries)
+//
+//  Allocates the the HostLeaf and Data arrays
+//
+void
+CacheHostMatcher::AllocateSpace(int num_entries)
+{
+  // Should not have been allocated before
+  ink_assert(array_len == -1);
+
+  host_lookup->AllocateSpace(num_entries);
+
+  data_array = new CacheHostRecord[num_entries];
+
+  array_len = num_entries;
+  num_el = 0;
+}
+
+// void CacheHostMatcher::Match(RequestData* rdata, Result* result)
+//
+//  Searches our tree and updates argresult for each element matching
+//    arg hostname
+//
+void
+CacheHostMatcher::Match(char *rdata, int rlen, CacheHostResult * result)
+{
+
+  void *opaque_ptr;
+  CacheHostRecord *data_ptr;
+  bool r;
+
+  // Check to see if there is any work to do before makeing
+  //   the stirng copy
+  if (num_el <= 0) {
+    return;
+  }
+
+  if (rlen == 0)
+    return;
+  char *data = (char *)ats_malloc(rlen + 1);
+  memcpy(data, rdata, rlen);
+  *(data + rlen) = '\0';
+  HostLookupState s;
+
+  r = host_lookup->MatchFirst(data, &s, &opaque_ptr);
+
+  while (r == true) {
+    ink_assert(opaque_ptr != NULL);
+    data_ptr = (CacheHostRecord *) opaque_ptr;
+    data_ptr->UpdateMatch(result, data);
+
+    r = host_lookup->MatchNext(&s, &opaque_ptr);
+  }
+  ats_free(data);
+}
+
+//
+// char* CacheHostMatcher::NewEntry(bool domain_record,
+//          char* match_data, char* match_info, int line_num)
+//
+//   Creates a new host/domain record
+//
+
+void
+CacheHostMatcher::NewEntry(matcher_line * line_info)
+{
+
+  CacheHostRecord *cur_d;
+  int errNo;
+  char *match_data;
+
+  // Make sure space has been allocated
+  ink_assert(num_el >= 0);
+  ink_assert(array_len >= 0);
+
+  // Make sure we do not overrun the array;
+  ink_assert(num_el < array_len);
+
+  match_data = line_info->line[1][line_info->dest_entry];
+
+  // Make sure that the line_info is not bogus
+  ink_assert(line_info->dest_entry < MATCHER_MAX_TOKENS);
+  ink_assert(match_data != NULL);
+
+  // Remove our consumed label from the parsed line
+  if (line_info->dest_entry < MATCHER_MAX_TOKENS)
+    line_info->line[0][line_info->dest_entry] = NULL;
+  line_info->num_el--;
+
+  // Fill in the parameter info
+  cur_d = data_array + num_el;
+  errNo = cur_d->Init(line_info, type);
+
+  if (errNo) {
+    // There was a problem so undo the effects this function
+    memset(cur_d, 0, sizeof(CacheHostRecord));
+    return;
+  }
+  Debug("cache_hosting", "hostname: %s, host record: %p", match_data, cur_d);
+  // Fill in the matching info
+  host_lookup->NewEntry(match_data, (line_info->type == MATCH_DOMAIN) ? true : false, cur_d);
+
+  num_el++;
+  return;
+}
+
+/*************************************************************
+ *   End class HostMatcher
+ *************************************************************/
+
+CacheHostTable::CacheHostTable(Cache * c, CacheType typ)
+{
+  xptr<char> config_path;
+
+  config_tags = &CacheHosting_tags;
+  ink_assert(config_tags != NULL);
+
+  type = typ;
+  cache = c;
+  matcher_name = "[CacheHosting]";;
+  hostMatch = NULL;
+
+  config_path = RecConfigReadConfigPath("proxy.config.cache.hosting_filename");
+  ink_release_assert(config_path);
+
+  m_numEntries = this->BuildTable(config_path);
+}
+
+CacheHostTable::~CacheHostTable()
+{
+
+  if (hostMatch != NULL) {
+    delete hostMatch;
+  }
+}
+
+// void ControlMatcher<Data, Result>::Print()
+//
+//   Debugging method
+//
+void
+CacheHostTable::Print()
+{
+  printf("Control Matcher Table: %s\n", matcher_name);
+  if (hostMatch != NULL) {
+    hostMatch->Print();
+  }
+}
+
+
+// void ControlMatcher<Data, Result>::Match(RequestData* rdata
+//                                          Result* result)
+//
+//   Queries each table for the Result*
+//
+void
+CacheHostTable::Match(char *rdata, int rlen, CacheHostResult * result)
+{
+
+  hostMatch->Match(rdata, rlen, result);
+}
+
+int
+CacheHostTable::config_callback(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                                RecData /* data ATS_UNUSED */, void *cookie)
+{
+  CacheHostTable **ppt = (CacheHostTable **) cookie;
+  eventProcessor.schedule_imm(new CacheHostTableConfig(ppt));
+  return 0;
+}
+
+int fstat_wrapper(int fd, struct stat *s);
+
+// int ControlMatcher::BuildTable() {
+//
+//    Reads the cache.config file and build the records array
+//      from it
+//
+int
+CacheHostTable::BuildTableFromString(const char * config_file_path, char *file_buf)
+{
+  // Table build locals
+  Tokenizer bufTok("\n");
+  tok_iter_state i_state;
+  const char *tmp;
+  matcher_line *first = NULL;
+  matcher_line *current;
+  matcher_line *last = NULL;
+  int line_num = 0;
+  int second_pass = 0;
+  int numEntries = 0;
+  char errBuf[1024];
+  const char *errPtr = NULL;
+
+  // type counts
+  int hostDomain = 0;
+
+  if (bufTok.Initialize(file_buf, SHARE_TOKS | ALLOW_EMPTY_TOKS) == 0) {
+    // We have an empty file
+    /* no hosting customers -- put all the volumes in the
+       generic table */
+    if (gen_host_rec.Init(type))
+      Warning("Problems encountered while initializing the Generic Volume");
+    return 0;
+  }
+  // First get the number of entries
+  tmp = bufTok.iterFirst(&i_state);
+  while (tmp != NULL) {
+
+    line_num++;
+
+    // skip all blank spaces at beginning of line
+    while (*tmp && isspace(*tmp)) {
+      tmp++;
+    }
+
+    if (*tmp != '#' && *tmp != '\0') {
+
+      current = (matcher_line *)ats_malloc(sizeof(matcher_line));
+      errPtr = parseConfigLine((char *) tmp, current, config_tags);
+
+      if (errPtr != NULL) {
+        snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : %s",
+                 matcher_name, config_file_path, line_num, errPtr);
+        REC_SignalError(errBuf, alarmAlready);
+        ats_free(current);
+      } else {
+
+        // Line parsed ok.  Figure out what the destination
+        //  type is and link it into our list
+        numEntries++;
+        current->line_num = line_num;
+
+        switch (current->type) {
+        case MATCH_HOST:
+        case MATCH_DOMAIN:
+          hostDomain++;
+          break;
+        case MATCH_NONE:
+        default:
+          ink_assert(0);
+        }
+
+        if (first == NULL) {
+          ink_assert(last == NULL);
+          first = last = current;
+        } else {
+          last->next = current;
+          last = current;
+        }
+      }
+    }
+    tmp = bufTok.iterNext(&i_state);
+  }
+
+  // Make we have something to do before going on
+  if (numEntries == 0) {
+    /* no hosting customers -- put all the volumes in the
+       generic table */
+
+    if (gen_host_rec.Init(type)) {
+      Warning("Problems encountered while initializing the Generic Volume");
+    }
+
+    if (first != NULL) {
+      ats_free(first);
+    }
+    return 0;
+  }
+
+  if (hostDomain > 0) {
+    hostMatch = new CacheHostMatcher(matcher_name, type);
+    hostMatch->AllocateSpace(hostDomain);
+  }
+  // Traverse the list and build the records table
+  int generic_rec_initd = 0;
+  current = first;
+  while (current != NULL) {
+    second_pass++;
+    if ((current->type == MATCH_DOMAIN) || (current->type == MATCH_HOST)) {
+
+      char *match_data = current->line[1][current->dest_entry];
+      ink_assert(match_data != NULL);
+
+      if (!strcasecmp(match_data, "*")) {
+        // generic volume - initialize the generic hostrecord */
+        // Make sure that the line_info is not bogus
+        ink_assert(current->dest_entry < MATCHER_MAX_TOKENS);
+
+        // Remove our consumed label from the parsed line
+        if (current->dest_entry < MATCHER_MAX_TOKENS)
+          current->line[0][current->dest_entry] = NULL;
+        else
+          Warning("Problems encountered while initializing the Generic Volume");
+
+        current->num_el--;
+        if (!gen_host_rec.Init(current, type))
+          generic_rec_initd = 1;
+        else
+          Warning("Problems encountered while initializing the Generic Volume");
+
+      } else {
+        hostMatch->NewEntry(current);
+      }
+    } else {
+      snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry with unknown type at line %d",
+               matcher_name, config_file_path, current->line_num);
+      REC_SignalError(errBuf, alarmAlready);
+    }
+
+    // Deallocate the parsing structure
+    last = current;
+    current = current->next;
+    ats_free(last);
+  }
+
+  if (!generic_rec_initd) {
+    const char *cache_type = (type == CACHE_HTTP_TYPE) ? "http" : "mixt";
+    snprintf(errBuf, sizeof(errBuf),
+             "No Volumes specified for Generic Hostnames for %s documents: %s cache will be disabled", cache_type,
+             cache_type);
+    REC_SignalError(errBuf, alarmAlready);
+  }
+
+  ink_assert(second_pass == numEntries);
+
+  if (is_debug_tag_set("matcher")) {
+    Print();
+  }
+  return numEntries;
+}
+
+int
+CacheHostTable::BuildTable(const char * config_file_path)
+{
+  char *file_buf;
+  int ret;
+
+  file_buf = readIntoBuffer(config_file_path, matcher_name, NULL);
+
+  if (file_buf == NULL) {
+    Warning("Cannot read the config file: %s", config_file_path);
+    gen_host_rec.Init(type);
+    return 0;
+  }
+
+  ret = BuildTableFromString(config_file_path, file_buf);
+  ats_free(file_buf);
+  return ret;
+}
+
+int
+CacheHostRecord::Init(CacheType typ)
+{
+
+  int i, j;
+  extern Queue<CacheVol> cp_list;
+  extern int cp_list_len;
+  char err[1024];
+
+  err[0] = 0;
+  num_vols = 0;
+  type = typ;
+  cp = (CacheVol **)ats_malloc(cp_list_len * sizeof(CacheVol *));
+  memset(cp, 0, cp_list_len * sizeof(CacheVol *));
+  num_cachevols = 0;
+  CacheVol *cachep = cp_list.head;
+  for (; cachep; cachep = cachep->link.next) {
+    if (cachep->scheme == type) {
+      Debug("cache_hosting", "Host Record: %p, Volume: %d, size: %" PRId64, this, cachep->vol_number, (int64_t)cachep->size);
+      cp[num_cachevols] = cachep;
+      num_cachevols++;
+      num_vols += cachep->num_vols;
+    }
+  }
+  if (!num_cachevols) {
+    snprintf(err, 1024, "error: No volumes found for Cache Type %d\n", type);
+    REC_SignalError(err, alarmAlready);
+    return -1;
+  }
+  vols = (Vol **)ats_malloc(num_vols * sizeof(Vol *));
+  int counter = 0;
+  for (i = 0; i < num_cachevols; i++) {
+    CacheVol *cachep1 = cp[i];
+    for (j = 0; j < cachep1->num_vols; j++) {
+      vols[counter++] = cachep1->vols[j];
+    }
+  }
+  ink_assert(counter == num_vols);
+
+  build_vol_hash_table(this);
+  return 0;
+}
+
+int
+CacheHostRecord::Init(matcher_line * line_info, CacheType typ)
+{
+  int i, j;
+  extern Queue<CacheVol> cp_list;
+  char err[1024];
+  err[0] = 0;
+  int is_vol_present = 0;
+  char config_file[PATH_NAME_MAX];
+
+  REC_ReadConfigString(config_file, "proxy.config.cache.hosting_filename", PATH_NAME_MAX);
+  type = typ;
+  for (i = 0; i < MATCHER_MAX_TOKENS; i++) {
+    char *label = line_info->line[0][i];
+    if (!label)
+      continue;
+    char *val;
+
+    if (!strcasecmp(label, "volume")) {
+      /* parse the list of volumes */
+      val = ats_strdup(line_info->line[1][i]);
+      char *vol_no = val;
+      char *s = val;
+      int volume_number;
+      CacheVol *cachep;
+
+      /* first find out the number of volumes */
+      while (*s) {
+        if (*s == ',') {
+          num_cachevols++;
+          s++;
+          if (!(*s)) {
+            const char *errptr = "A volume number expected";
+            snprintf(err, 1024,
+                         "%s discarding %s entry at line %d :%s",
+                         "[CacheHosting]", config_file, line_info->line_num, errptr);
+            REC_SignalError(err, alarmAlready);
+            if (val != NULL) {
+              ats_free(val);
+            }
+            return -1;
+          }
+        }
+        if ((*s<'0') || (*s> '9')) {
+          snprintf(err, 1024,
+                       "%s discarding %s entry at line %d : bad token [%c]",
+                       "[CacheHosting]", config_file, line_info->line_num, *s);
+          REC_SignalError(err, alarmAlready);
+          if (val != NULL) {
+            ats_free(val);
+          }
+          return -1;
+        }
+        s++;
+      }
+      s = val;
+      num_cachevols++;
+      cp = (CacheVol **)ats_malloc(num_cachevols * sizeof(CacheVol *));
+      memset(cp, 0, num_cachevols * sizeof(CacheVol *));
+      num_cachevols = 0;
+      while (1) {
+        char c = *s;
+        if ((c == ',') || (c == '\0')) {
+          *s = '\0';
+          volume_number = atoi(vol_no);
+
+          cachep = cp_list.head;
+          for (; cachep; cachep = cachep->link.next) {
+            if (cachep->vol_number == volume_number) {
+              is_vol_present = 1;
+              if (cachep->scheme == type) {
+                Debug("cache_hosting",
+                      "Host Record: %p, Volume: %d, size: %ld",
+                      this, volume_number, (long)(cachep->size * STORE_BLOCK_SIZE));
+                cp[num_cachevols] = cachep;
+                num_cachevols++;
+                num_vols += cachep->num_vols;
+                break;
+              }
+            }
+          }
+          if (!is_vol_present) {
+            snprintf(err, 1024,
+                         "%s discarding %s entry at line %d : bad volume number [%d]",
+                         "[CacheHosting]", config_file, line_info->line_num, volume_number);
+            REC_SignalError(err, alarmAlready);
+            if (val != NULL) {
+              ats_free(val);
+            }
+            return -1;
+          }
+          if (c == '\0')
+            break;
+          vol_no = s + 1;
+        }
+        s++;
+      }
+      if (val != NULL) {
+        ats_free(val);
+      }
+      break;
+    }
+
+    snprintf(err, 1024,
+                 "%s discarding %s entry at line %d : bad token [%s]",
+                 "[CacheHosting]", config_file, line_info->line_num, label);
+    REC_SignalError(err, alarmAlready);
+    return -1;
+  }
+
+  if (i == MATCHER_MAX_TOKENS) {
+    snprintf(err, 1024,
+                 "%s discarding %s entry at line %d : No volumes specified",
+                 "[CacheHosting]", config_file, line_info->line_num);
+    REC_SignalError(err, alarmAlready);
+    return -1;
+  }
+
+  if (!num_vols) {
+    return -1;
+  }
+  vols = (Vol **)ats_malloc(num_vols * sizeof(Vol *));
+  int counter = 0;
+  for (i = 0; i < num_cachevols; i++) {
+    CacheVol *cachep = cp[i];
+    for (j = 0; j < cp[i]->num_vols; j++) {
+      vols[counter++] = cachep->vols[j];
+    }
+  }
+  ink_assert(counter == num_vols);
+
+  build_vol_hash_table(this);
+  return 0;
+}
+
+void
+CacheHostRecord::UpdateMatch(CacheHostResult * r, char * /* rd ATS_UNUSED */)
+{
+  r->record = this;
+}
+
+void
+CacheHostRecord::Print()
+{
+}
+
+
+
+void
+ConfigVolumes::read_config_file()
+{
+  xptr<char> config_path;
+  char *file_buf;
+
+  config_path = RecConfigReadConfigPath("proxy.config.cache.volume_filename");
+  ink_release_assert(config_path);
+
+  file_buf = readIntoBuffer(config_path, "[CacheVolition]", NULL);
+  if (file_buf == NULL) {
+    Warning("Cannot read the config file: %s", (const char *)config_path);
+    return;
+  }
+
+  BuildListFromString(config_path, file_buf);
+  ats_free(file_buf);
+  return;
+}
+
+void
+ConfigVolumes::BuildListFromString(char *config_file_path, char *file_buf)
+{
+
+#define PAIR_ZERO 0
+#define PAIR_ONE 1
+#define PAIR_TWO 2
+#define DONE 3
+#define INK_ERROR -1
+
+#define INK_ERROR_VOLUME -2  //added by YTS Team, yamsat for bug id 59632
+// Table build locals
+  Tokenizer bufTok("\n");
+  tok_iter_state i_state;
+  const char *tmp;
+  char *end;
+  char *line_end = NULL;
+  int line_num = 0;
+  int total = 0;                //added by YTS Team, yamsat for bug id 59632
+  char errBuf[1024];
+
+  char volume_seen[256];
+  int state = 0;                //changed by YTS Team, yamsat for bug id 59632
+  int manager_alarmed = false;
+  int volume_number = 0;
+  CacheType scheme = CACHE_NONE_TYPE;
+  int size = 0;
+  int in_percent = 0;
+  const char *matcher_name = "[CacheVolition]";
+
+  memset(volume_seen, 0, sizeof(volume_seen));
+  num_volumes = 0;
+  num_stream_volumes = 0;
+  num_http_volumes = 0;
+
+  if (bufTok.Initialize(file_buf, SHARE_TOKS | ALLOW_EMPTY_TOKS) == 0) {
+    // We have an empty file
+    /* no volumes */
+    return;
+  }
+  // First get the number of entries
+  tmp = bufTok.iterFirst(&i_state);
+  while (tmp != NULL) {
+    state = PAIR_ZERO;
+    line_num++;
+
+    // skip all blank spaces at beginning of line
+    while (1) {
+      while (*tmp && isspace(*tmp)) {
+        tmp++;
+      }
+
+      if (!(*tmp) && state == DONE) {
+        /* add the config */
+
+        ConfigVol *configp = new ConfigVol();
+        configp->number = volume_number;
+        if (in_percent) {
+          configp->percent = size;
+          configp->in_percent = 1;
+        } else {
+          configp->in_percent = 0;
+        }
+        configp->scheme = scheme;
+        configp->size = size;
+        configp->cachep = NULL;
+        cp_queue.enqueue(configp);
+        num_volumes++;
+        if (scheme == CACHE_HTTP_TYPE)
+          num_http_volumes++;
+        else
+          num_stream_volumes++;
+        Debug("cache_hosting",
+              "added volume=%d, scheme=%d, size=%d percent=%d\n", volume_number, scheme, size, in_percent);
+        break;
+      }
+
+      if (state == PAIR_ZERO) {
+        if (*tmp == '\0' || *tmp == '#')
+          break;
+      } else {
+        if (!(*tmp)) {
+          snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : Unexpected end of line",
+                   matcher_name, config_file_path, line_num);
+          REC_SignalError(errBuf, manager_alarmed);
+
+          break;
+        }
+      }
+
+      end = (char *) tmp;
+      while (*end && !isspace(*end))
+        end++;
+
+      if (!(*end))
+        line_end = end;
+      else {
+        line_end = end + 1;
+        *end = '\0';
+      }
+      char *eq_sign;
+
+      eq_sign = (char *) strchr(tmp, '=');
+      if (!eq_sign) {
+        state = INK_ERROR;
+      } else
+        *eq_sign = '\0';
+
+      switch (state) {
+      case PAIR_ZERO:
+        if (strcasecmp(tmp, "volume")) {
+          state = INK_ERROR;
+          break;
+        }
+        tmp += 7;              //size of string volume including null
+        volume_number = atoi(tmp);
+
+        if (volume_number<1 || volume_number> 255 || volume_seen[volume_number]) {
+          const char *err;
+
+          if (volume_number<1 || volume_number> 255) {
+            err = "Bad Volume Number";
+          } else {
+            err = "Volume Already Specified";
+          }
+
+          snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : %s [%d]",
+                   matcher_name, config_file_path, line_num, err, volume_number);
+          REC_SignalError(errBuf, manager_alarmed);
+          state = INK_ERROR;
+          break;
+        }
+
+        volume_seen[volume_number] = 1;
+        while (ParseRules::is_digit(*tmp))
+          tmp++;
+        state = PAIR_ONE;
+        break;
+
+      case PAIR_ONE:
+        if (strcasecmp(tmp, "scheme")) {
+          state = INK_ERROR;
+          break;
+        }
+        tmp += 7;               //size of string scheme including null
+
+        if (!strcasecmp(tmp, "http")) {
+          tmp += 4;
+          scheme = CACHE_HTTP_TYPE;
+        } else if (!strcasecmp(tmp, "mixt")) {
+          tmp += 4;
+          scheme = CACHE_RTSP_TYPE;
+        } else {
+          state = INK_ERROR;
+          break;
+        }
+
+        state = PAIR_TWO;
+        break;
+
+      case PAIR_TWO:
+
+        if (strcasecmp(tmp, "size")) {
+          state = INK_ERROR;
+          break;
+        }
+        tmp += 5;
+        size = atoi(tmp);
+
+        while (ParseRules::is_digit(*tmp))
+          tmp++;
+
+        if (*tmp == '%') {
+          //added by YTS Team, yamsat for bug id 59632
+          total += size;
+          if (size > 100 || total > 100) {
+            state = INK_ERROR_VOLUME;
+            if (state == INK_ERROR_VOLUME || *tmp) {
+              snprintf(errBuf, sizeof(errBuf),
+                       "Total volume size added upto more than 100 percent,No volumes created");
+              REC_SignalError(errBuf, manager_alarmed);
+              break;
+            }
+          }
+          //ends here
+          in_percent = 1;
+          tmp++;
+        } else
+          in_percent = 0;
+        state = DONE;
+        break;
+
+      }
+
+      if (state == INK_ERROR || *tmp) {
+        snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : Invalid token [%s]",
+                 matcher_name, config_file_path, line_num, tmp);
+        REC_SignalError(errBuf, manager_alarmed);
+
+        break;
+      }
+      //added by YTS Team, yamsat for bug id 59632
+      if (state == INK_ERROR_VOLUME || *tmp) {
+        snprintf(errBuf, sizeof(errBuf), "Total volume size added upto more than 100 percent,No volumes created");
+        REC_SignalError(errBuf, manager_alarmed);
+        break;
+      }
+      // ends here
+      if (end < line_end)
+        tmp++;
+    }
+    tmp = bufTok.iterNext(&i_state);
+  }
+
+  return;
+}
+
+
+
+/* Test the cache volumeing with different configurations */
+#define MEGS_128 (128 * 1024 * 1024)
+#define ROUND_TO_VOL_SIZE(_x) (((_x) + (MEGS_128 - 1)) &~ (MEGS_128 - 1))
+extern CacheDisk **gdisks;
+extern Queue<CacheVol> cp_list;
+extern int cp_list_len;
+extern ConfigVolumes config_volumes;
+extern volatile int gnvol;
+
+extern void cplist_init();
+extern int cplist_reconfigure();
+static int configs = 4;
+
+Queue<CacheVol> saved_cp_list;
+int saved_cp_list_len;
+ConfigVolumes saved_config_volumes;
+int saved_gnvol;
+
+int ClearConfigVol(ConfigVolumes * configp);
+int ClearCacheVolList(Queue<CacheVol> *cpl, int len);
+int create_config(RegressionTest * t, int i);
+int execute_and_verify(RegressionTest * t);
+void save_state();
+void restore_state();
+
+EXCLUSIVE_REGRESSION_TEST(Cache_vol) (RegressionTest * t, int /* atype ATS_UNUSED */, int *status) {
+  save_state();
+  srand48(time(NULL));
+  *status = REGRESSION_TEST_PASSED;
+  for (int i = 0; i < configs; i++) {
+    if (create_config(t, i)) {
+      if (execute_and_verify(t) == REGRESSION_TEST_FAILED) {
+        *status = REGRESSION_TEST_FAILED;
+      }
+    }
+  }
+  restore_state();
+  return;
+}
+
+int
+create_config(RegressionTest * t, int num)
+{
+  int i = 0;
+  int vol_num = 1;
+  // clear all old configurations before adding new test cases
+  config_volumes.clear_all();
+  switch (num) {
+  case 0:
+    for (i = 0; i < gndisks; i++) {
+      CacheDisk *d = gdisks[i];
+      int blocks = d->num_usable_blocks;
+      if (blocks < STORE_BLOCKS_PER_VOL) {
+        rprintf(t, "Cannot run Cache_vol regression: not enough disk space\n");
+        return 0;
+      }
+      /* create 128 MB volumes */
+      for (; blocks >= STORE_BLOCKS_PER_VOL; blocks -= STORE_BLOCKS_PER_VOL) {
+        if (vol_num > 255)
+          break;
+        ConfigVol *cp = new ConfigVol();
+        cp->number = vol_num++;
+        cp->scheme = CACHE_HTTP_TYPE;
+        cp->size = 128;
+        cp->in_percent = 0;
+        cp->cachep = 0;
+        config_volumes.cp_queue.enqueue(cp);
+        config_volumes.num_volumes++;
+        config_volumes.num_http_volumes++;
+      }
+
+    }
+    rprintf(t, "%d 128 Megabyte Volumes\n", vol_num - 1);
+    break;
+
+  case 1:
+    {
+      for (i = 0; i < gndisks; i++) {
+        gdisks[i]->delete_all_volumes();
+      }
+
+      // calculate the total free space
+      off_t total_space = 0;
+      for (i = 0; i < gndisks; i++) {
+        off_t vol_blocks = gdisks[i]->num_usable_blocks;
+        /* round down the blocks to the nearest
+           multiple of STORE_BLOCKS_PER_VOL */
+        vol_blocks = (vol_blocks / STORE_BLOCKS_PER_VOL)
+          * STORE_BLOCKS_PER_VOL;
+        total_space += vol_blocks;
+      }
+
+      // make sure we have atleast 1280 M bytes
+      if (total_space<(10 << 27)>> STORE_BLOCK_SHIFT) {
+        rprintf(t, "Not enough space for 10 volume\n");
+        return 0;
+      }
+
+      vol_num = 1;
+      rprintf(t, "Cleared  disk\n");
+      for (i = 0; i < 10; i++) {
+        ConfigVol *cp = new ConfigVol();
+        cp->number = vol_num++;
+        cp->scheme = CACHE_HTTP_TYPE;
+        cp->size = 10;
+        cp->percent = 10;
+        cp->in_percent = 1;
+        cp->cachep = 0;
+        config_volumes.cp_queue.enqueue(cp);
+        config_volumes.num_volumes++;
+        config_volumes.num_http_volumes++;
+      }
+      rprintf(t, "10 volume, 10 percent each\n");
+    }
+    break;
+
+  case 2:
+  case 3:
+
+    {
+      /* calculate the total disk space */
+      InkRand *gen = &this_ethread()->generator;
+      off_t total_space = 0;
+      vol_num = 1;
+      if (num == 2) {
+        rprintf(t, "Random Volumes after clearing the disks\n");
+      } else {
+        rprintf(t, "Random Volumes without clearing the disks\n");
+      }
+
+      for (i = 0; i < gndisks; i++) {
+        off_t vol_blocks = gdisks[i]->num_usable_blocks;
+        /* round down the blocks to the nearest
+           multiple of STORE_BLOCKS_PER_VOL */
+        vol_blocks = (vol_blocks / STORE_BLOCKS_PER_VOL)
+          * STORE_BLOCKS_PER_VOL;
+        total_space += vol_blocks;
+
+        if (num == 2) {
+          gdisks[i]->delete_all_volumes();
+        } else {
+          gdisks[i]->cleared = 0;
+        }
+      }
+      while (total_space > 0) {
+        if (vol_num > 255)
+          break;
+        off_t modu = MAX_VOL_SIZE;
+        if (total_space<(MAX_VOL_SIZE>> STORE_BLOCK_SHIFT)) {
+          modu = total_space * STORE_BLOCK_SIZE;
+        }
+
+        off_t random_size = (gen->random() % modu) + 1;
+        /* convert to 128 megs multiple */
+        CacheType scheme = (random_size % 2) ? CACHE_HTTP_TYPE : CACHE_RTSP_TYPE;
+        random_size = ROUND_TO_VOL_SIZE(random_size);
+        off_t blocks = random_size / STORE_BLOCK_SIZE;
+        ink_assert(blocks <= (int) total_space);
+        total_space -= blocks;
+
+        ConfigVol *cp = new ConfigVol();
+
+        cp->number = vol_num++;
+        cp->scheme = scheme;
+        cp->size = random_size >> 20;
+        cp->percent = 0;
+        cp->in_percent = 0;
+        cp->cachep = 0;
+        config_volumes.cp_queue.enqueue(cp);
+        config_volumes.num_volumes++;
+        if (cp->scheme == CACHE_HTTP_TYPE) {
+          config_volumes.num_http_volumes++;
+          rprintf(t, "volume=%d scheme=http size=%d\n", cp->number, cp->size);
+        } else {
+          config_volumes.num_stream_volumes++;
+          rprintf(t, "volume=%d scheme=rtsp size=%d\n", cp->number, cp->size);
+
+        }
+      }
+    }
+    break;
+
+  default:
+    return 1;
+  }
+  return 1;
+}
+
+int
+execute_and_verify(RegressionTest * t)
+{
+  cplist_init();
+  cplist_reconfigure();
+
+  /* compare the volumes */
+  if (cp_list_len != config_volumes.num_volumes)
+    return REGRESSION_TEST_FAILED;
+
+  /* check that the volumes and sizes
+     match the configuration */
+  int matched = 0;
+  ConfigVol *cp = config_volumes.cp_queue.head;
+  CacheVol *cachep;
+
+  for (int i = 0; i < config_volumes.num_volumes; i++) {
+    cachep = cp_list.head;
+    while (cachep) {
+      if (cachep->vol_number == cp->number) {
+        if ((cachep->scheme != cp->scheme) ||
+            (cachep->size != (cp->size << (20 - STORE_BLOCK_SHIFT))) || (cachep != cp->cachep)) {
+          rprintf(t, "Configuration and Actual volumes don't match\n");
+          return REGRESSION_TEST_FAILED;
+        }
+
+        /* check that the number of volumes match the ones
+           on disk */
+        int d_no;
+        int m_vols = 0;
+        for (d_no = 0; d_no < gndisks; d_no++) {
+          if (cachep->disk_vols[d_no]) {
+            DiskVol *dp = cachep->disk_vols[d_no];
+            if (dp->vol_number != cachep->vol_number) {
+              rprintf(t, "DiskVols and CacheVols don't match\n");
+              return REGRESSION_TEST_FAILED;
+            }
+
+            /* check the diskvolblock queue */
+            DiskVolBlockQueue *dpbq = dp->dpb_queue.head;
+            while (dpbq) {
+              if (dpbq->b->number != cachep->vol_number) {
+                rprintf(t, "DiskVol and DiskVolBlocks don't match\n");
+                return REGRESSION_TEST_FAILED;
+              }
+              dpbq = dpbq->link.next;
+            }
+
+            m_vols += dp->num_volblocks;
+          }
+        }
+        if (m_vols != cachep->num_vols) {
+          rprintf(t, "Num volumes in CacheVol and DiskVol don't match\n");
+          return REGRESSION_TEST_FAILED;
+        }
+        matched++;
+        break;
+      }
+      cachep = cachep->link.next;
+    }
+  }
+
+  if (matched != config_volumes.num_volumes) {
+    rprintf(t, "Num of Volumes created and configured don't match\n");
+    return REGRESSION_TEST_FAILED;
+  }
+
+  ClearConfigVol(&config_volumes);
+
+  ClearCacheVolList(&cp_list, cp_list_len);
+
+  for (int i = 0; i < gndisks; i++) {
+    CacheDisk *d = gdisks[i];
+    if (is_debug_tag_set("cache_hosting")) {
+
+      Debug("cache_hosting", "Disk: %d: Vol Blocks: %u: Free space: %" PRIu64,
+            i, d->header->num_diskvol_blks, d->free_space);
+      for (int j = 0; j < (int) d->header->num_volumes; j++) {
+
+        Debug("cache_hosting", "\tVol: %d Size: %" PRIu64, d->disk_vols[j]->vol_number, d->disk_vols[j]->size);
+      }
+      for (int j = 0; j < (int) d->header->num_diskvol_blks; j++) {
+        Debug("cache_hosting", "\tBlock No: %d Size: %" PRIu64" Free: %u",
+              d->header->vol_info[j].number, d->header->vol_info[j].len, d->header->vol_info[j].free);
+      }
+    }
+  }
+  return REGRESSION_TEST_PASSED;
+}
+
+int
+ClearConfigVol(ConfigVolumes * configp)
+{
+
+  int i = 0;
+  ConfigVol *cp = NULL;
+  while ((cp = configp->cp_queue.dequeue())) {
+    delete cp;
+    i++;
+  }
+  if (i != configp->num_volumes) {
+    Warning("failed");
+    return 0;
+  }
+  configp->num_volumes = 0;
+  configp->num_http_volumes = 0;
+  configp->num_stream_volumes = 0;
+  return 1;
+}
+
+int
+ClearCacheVolList(Queue<CacheVol> *cpl, int len)
+{
+
+  int i = 0;
+  CacheVol *cp = NULL;
+  while ((cp = cpl->dequeue())) {
+    ats_free(cp->disk_vols);
+    ats_free(cp->vols);
+    delete(cp);
+    i++;
+  }
+
+  if (i != len) {
+    Warning("Failed");
+    return 0;
+  }
+  return 1;
+}
+
+
+void
+save_state()
+{
+  saved_cp_list = cp_list;
+  saved_cp_list_len = cp_list_len;
+  memcpy(&saved_config_volumes, &config_volumes, sizeof(ConfigVolumes));
+  saved_gnvol = gnvol;
+  memset(&cp_list, 0, sizeof(Queue<CacheVol>));
+  memset(&config_volumes, 0, sizeof(ConfigVolumes));
+  gnvol = 0;
+}
+
+void
+restore_state()
+{
+  cp_list = saved_cp_list;
+  cp_list_len = saved_cp_list_len;
+  memcpy(&config_volumes, &saved_config_volumes, sizeof(ConfigVolumes));
+  gnvol = saved_gnvol;
+}
diff --git a/iocore/cache/CacheHttp.cc b/iocore/cache/CacheHttp.cc
new file mode 100644
index 00000000..e07698c4
--- /dev/null
+++ b/iocore/cache/CacheHttp.cc
@@ -0,0 +1,355 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include <string.h>
+#include "P_Cache.h"
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static vec_info default_vec_info;
+
+#ifdef HTTP_CACHE
+static CacheHTTPInfo default_http_info;
+
+CacheHTTPInfoVector::CacheHTTPInfoVector()
+:magic(NULL), data(&default_vec_info, 4), xcount(0)
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+CacheHTTPInfoVector::~CacheHTTPInfoVector()
+{
+  int i;
+
+  for (i = 0; i < xcount; i++) {
+    data[i].alternate.destroy();
+  }
+  vector_buf.clear();
+  magic = NULL;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+CacheHTTPInfoVector::insert(CacheHTTPInfo * info, int index)
+{
+  if (index == CACHE_ALT_INDEX_DEFAULT)
+    index = xcount++;
+
+  data(index).alternate.copy_shallow(info);
+  return index;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+
+void
+CacheHTTPInfoVector::detach(int idx, CacheHTTPInfo * r)
+{
+  int i;
+
+  ink_assert(idx >= 0);
+  ink_assert(idx < xcount);
+
+  r->copy_shallow(&data[idx].alternate);
+  data[idx].alternate.destroy();
+
+  for (i = idx; i < (xcount - 1); i++) {
+    data[i] = data[i + i];
+  }
+
+  xcount -= 1;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+CacheHTTPInfoVector::remove(int idx, bool destroy)
+{
+  if (destroy)
+    data[idx].alternate.destroy();
+
+  for (; idx < (xcount - 1); idx++)
+    data[idx] = data[idx + 1];
+
+  xcount--;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+CacheHTTPInfoVector::clear(bool destroy)
+{
+  int i;
+
+  if (destroy) {
+    for (i = 0; i < xcount; i++) {
+      data[i].alternate.destroy();
+    }
+  }
+  xcount = 0;
+  data.clear();
+  vector_buf.clear();
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+CacheHTTPInfoVector::print(char *buffer, size_t buf_size, bool temps)
+{
+  char buf[33], *p;
+  int purl;
+  int i, tmp;
+
+  p = buffer;
+  purl = 1;
+
+  for (i = 0; i < xcount; i++) {
+    if (data[i].alternate.valid()) {
+      if (purl) {
+        Arena arena;
+        char *url;
+
+        purl = 0;
+        URL u;
+        data[i].alternate.request_url_get(&u);
+        url = u.string_get(&arena);
+        if (url) {
+          snprintf(p, buf_size, "[%s] ", url);
+          tmp = strlen(p);
+          p += tmp;
+          buf_size -= tmp;
+        }
+      }
+
+      if (temps || !(data[i].alternate.object_key_get() == zero_key)) {
+        snprintf(p, buf_size, "[%d %s]", data[i].alternate.id_get(),
+                     CacheKey(data[i].alternate.object_key_get()).string(buf));
+        tmp = strlen(p);
+        p += tmp;
+        buf_size -= tmp;
+      }
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+CacheHTTPInfoVector::marshal_length()
+{
+  int length = 0;
+
+  for (int i = 0; i < xcount; i++) {
+    length += data[i].alternate.marshal_length();
+  }
+
+  return length;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+int
+CacheHTTPInfoVector::marshal(char *buf, int length)
+{
+  char *start = buf;
+  int count = 0;
+
+  ink_assert(!(((intptr_t) buf) & 3));      // buf must be aligned
+
+  for (int i = 0; i < xcount; i++) {
+    int tmp = data[i].alternate.marshal(buf, length);
+    length -= tmp;
+    buf += tmp;
+    count++;
+  }
+
+  GLOBAL_CACHE_SUM_GLOBAL_DYN_STAT(cache_hdr_vector_marshal_stat, 1);
+  GLOBAL_CACHE_SUM_GLOBAL_DYN_STAT(cache_hdr_marshal_stat, count);
+  GLOBAL_CACHE_SUM_GLOBAL_DYN_STAT(cache_hdr_marshal_bytes_stat, buf - start);
+  return buf - start;
+}
+
+int
+CacheHTTPInfoVector::unmarshal(const char *buf, int length, RefCountObj * block_ptr)
+{
+  ink_assert(!(((intptr_t) buf) & 3));      // buf must be aligned
+
+  const char *start = buf;
+  CacheHTTPInfo info;
+  xcount = 0;
+
+  while (length - (buf - start) > (int) sizeof(HTTPCacheAlt)) {
+
+    int tmp = HTTPInfo::unmarshal((char *) buf, length - (buf - start), block_ptr);
+    if (tmp < 0) {
+      return -1;
+    }
+    info.m_alt = (HTTPCacheAlt *) buf;
+    buf += tmp;
+
+    data(xcount).alternate = info;
+    xcount++;
+  }
+
+  return ((caddr_t) buf - (caddr_t) start);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+uint32_t
+CacheHTTPInfoVector::get_handles(const char *buf, int length, RefCountObj * block_ptr)
+{
+  ink_assert(!(((intptr_t) buf) & 3));      // buf must be aligned
+
+  const char *start = buf;
+  CacheHTTPInfo info;
+  xcount = 0;
+
+  vector_buf = block_ptr;
+
+  while (length - (buf - start) > (int) sizeof(HTTPCacheAlt)) {
+
+    int tmp = info.get_handle((char *) buf, length - (buf - start));
+    if (tmp < 0) {
+      ink_assert(!"CacheHTTPInfoVector::unmarshal get_handle() failed");
+      return (uint32_t) -1;
+    }
+    buf += tmp;
+
+    data(xcount).alternate = info;
+    xcount++;
+  }
+
+  return ((caddr_t) buf - (caddr_t) start);
+}
+
+#else //HTTP_CACHE
+
+CacheHTTPInfoVector::CacheHTTPInfoVector()
+:data(&default_vec_info, 4), xcount(0)
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+CacheHTTPInfoVector::~CacheHTTPInfoVector()
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+CacheHTTPInfoVector::insert(CacheHTTPInfo */* info ATS_UNUSED */, int index)
+{
+  ink_assert(0);
+  return index;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+
+void
+CacheHTTPInfoVector::detach(int /* idx ATS_UNUSED */, CacheHTTPInfo */* r ATS_UNUSED */)
+{
+  ink_assert(0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+CacheHTTPInfoVector::remove(int /* idx ATS_UNUSED */, bool /* destroy ATS_UNUSED */)
+{
+  ink_assert(0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+CacheHTTPInfoVector::clear(bool /* destroy ATS_UNUSED */)
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+CacheHTTPInfoVector::print(char */* buffer ATS_UNUSED */, size_t /* buf_size ATS_UNUSED */, bool /* temps ATS_UNUSED */)
+{
+  ink_assert(0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+CacheHTTPInfoVector::marshal_length()
+{
+  ink_assert(0);
+  return 0;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+int
+CacheHTTPInfoVector::marshal(char */* buf ATS_UNUSED */, int length)
+{
+  ink_assert(0);
+  return length;
+}
+
+int
+CacheHTTPInfoVector::unmarshal(const char */* buf ATS_UNUSED */, int /* length ATS_UNUSED */, RefCountObj */* block_ptr ATS_UNUSED */)
+{
+  ink_assert(0);
+  return 0;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+uint32_t
+CacheHTTPInfoVector::get_handles(const char */* buf ATS_UNUSED */, int /* length ATS_UNUSED */, RefCountObj */* block_ptr ATS_UNUSED */)
+{
+  ink_assert(0);
+  return 0;
+}
+
+#endif //HTTP_CACHE
diff --git a/iocore/cache/CacheLink.cc b/iocore/cache/CacheLink.cc
new file mode 100644
index 00000000..30f05b84
--- /dev/null
+++ b/iocore/cache/CacheLink.cc
@@ -0,0 +1,166 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+
+Action *
+Cache::link(Continuation * cont, CacheKey * from, CacheKey * to, CacheFragType type, char *hostname, int host_len)
+{
+
+  if (!CacheProcessor::IsCacheReady(type)) {
+    cont->handleEvent(CACHE_EVENT_LINK_FAILED, 0);
+    return ACTION_RESULT_DONE;
+  }
+
+  ink_assert(caches[type] == this);
+
+  CacheVC *c = new_CacheVC(cont);
+  c->vol = key_to_vol(from, hostname, host_len);
+  c->write_len = sizeof(*to);   // so that the earliest_key will be used
+  c->f.use_first_key = 1;
+  c->first_key = *from;
+  c->earliest_key = *to;
+
+  c->buf = new_IOBufferData(BUFFER_SIZE_INDEX_512);
+#ifdef DEBUG
+  Doc *doc = (Doc *) c->buf->data();
+  memcpy(doc->data(), to, sizeof(*to)); // doublecheck
+#endif
+
+  SET_CONTINUATION_HANDLER(c, &CacheVC::linkWrite);
+
+  if (c->do_write_lock() == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  else
+    return &c->_action;
+}
+
+int
+CacheVC::linkWrite(int event, Event * /* e ATS_UNUSED */)
+{
+  ink_assert(event == AIO_EVENT_DONE);
+  set_io_not_in_progress();
+  dir_insert(&first_key, vol, &dir);
+  if (_action.cancelled)
+    goto Ldone;
+  if (io.ok())
+    _action.continuation->handleEvent(CACHE_EVENT_LINK, NULL);
+  else
+    _action.continuation->handleEvent(CACHE_EVENT_LINK_FAILED, NULL);
+Ldone:
+  return free_CacheVC(this);
+}
+
+Action *
+Cache::deref(Continuation * cont, CacheKey * key, CacheFragType type, char *hostname, int host_len)
+{
+
+  if (!CacheProcessor::IsCacheReady(type)) {
+    cont->handleEvent(CACHE_EVENT_DEREF_FAILED, 0);
+    return ACTION_RESULT_DONE;
+  }
+
+  ink_assert(caches[type] == this);
+
+  Vol *vol = key_to_vol(key, hostname, host_len);
+  Dir result;
+  Dir *last_collision = NULL;
+  CacheVC *c = NULL;
+  {
+    MUTEX_TRY_LOCK(lock, vol->mutex, cont->mutex->thread_holding);
+    if (lock) {
+      if (!dir_probe(key, vol, &result, &last_collision)) {
+        cont->handleEvent(CACHE_EVENT_DEREF_FAILED, (void *) -ECACHE_NO_DOC);
+        return ACTION_RESULT_DONE;
+      }
+    }
+    c = new_CacheVC(cont);
+    SET_CONTINUATION_HANDLER(c, &CacheVC::derefRead);
+    c->first_key = c->key = *key;
+    c->vol = vol;
+    c->dir = result;
+    c->last_collision = last_collision;
+
+    if (!lock) {
+      c->mutex->thread_holding->schedule_in_local(c, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+      return &c->_action;
+    }
+
+    switch (c->do_read_call(&c->key)) {
+      case EVENT_DONE: return ACTION_RESULT_DONE;
+      case EVENT_RETURN: goto Lcallreturn;
+      default: return &c->_action;
+    }
+  }
+Lcallreturn:
+  if (c->handleEvent(AIO_EVENT_DONE, 0) == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  else
+    return &c->_action;
+}
+
+int
+CacheVC::derefRead(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Doc *doc = NULL;
+
+  cancel_trigger();
+  set_io_not_in_progress();
+  if (_action.cancelled)
+    return free_CacheVC(this);
+  if (!buf)
+    goto Lcollision;
+  if ((int) io.aio_result != (int) io.aiocb.aio_nbytes)
+    goto Ldone;
+  if (!dir_agg_valid(vol, &dir)) {
+    last_collision = NULL;
+    goto Lcollision;
+  }
+  doc = (Doc *) buf->data();
+  if (!(doc->first_key == key))
+    goto Lcollision;
+#ifdef DEBUG
+  ink_assert(!memcmp(doc->data(), &doc->key, sizeof(doc->key)));
+#endif
+  _action.continuation->handleEvent(CACHE_EVENT_DEREF, (void *) &doc->key);
+  return free_CacheVC(this);
+
+Lcollision:{
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock) {
+      mutex->thread_holding->schedule_in_local(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+      return EVENT_CONT;
+    }
+    if (dir_probe(&key, vol, &dir, &last_collision)) {
+      int ret = do_read_call(&first_key);
+      if (ret == EVENT_RETURN)
+        goto Lcallreturn;
+      return ret;
+    }
+  }
+Ldone:
+  _action.continuation->handleEvent(CACHE_EVENT_DEREF_FAILED, (void *) -ECACHE_NO_DOC);
+  return free_CacheVC(this);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0); // hopefully a tail call
+}
diff --git a/iocore/cache/CachePages.cc b/iocore/cache/CachePages.cc
new file mode 100644
index 00000000..2f0e57aa
--- /dev/null
+++ b/iocore/cache/CachePages.cc
@@ -0,0 +1,641 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+
+#include "api/ts/ts.h"
+#include "Show.h"
+#include "I_Tasks.h"
+#include "CacheControl.h"
+
+struct ShowCache: public ShowCont {
+  enum scan_type {
+    scan_type_lookup,
+    scan_type_delete,
+    scan_type_invalidate
+  };
+
+  int vol_index;
+  int seg_index;
+  scan_type scan_flag;
+  int urlstrs_index;
+  int linecount;
+  char (*show_cache_urlstrs)[500];
+  URL url;
+  CacheKey show_cache_key;
+  CacheVC *cache_vc;
+  MIOBuffer *buffer;
+  IOBufferReader *buffer_reader;
+  int64_t content_length;
+  VIO *cvio;
+  int showMain(int event, Event *e);
+  int lookup_url_form(int event, Event *e);
+  int delete_url_form(int event, Event *e);
+  int lookup_regex_form(int event, Event *e);
+  int delete_regex_form(int event, Event *e);
+  int invalidate_regex_form(int event, Event *e);
+
+  int lookup_url(int event, Event *e);
+  int delete_url(int event, Event *e);
+  int lookup_regex(int event, Event *e);
+  int delete_regex(int event, Event *e);
+  int invalidate_regex(int event, Event *e);
+
+  int handleCacheEvent(int event, Event *e);
+  int handleCacheDeleteComplete(int event, Event *e);
+  int handleCacheScanCallback(int event, Event *e);
+
+  ShowCache(Continuation *c, HTTPHdr *h): 
+    ShowCont(c, h), vol_index(0), seg_index(0), scan_flag(scan_type_lookup),
+    cache_vc(0), buffer(0), buffer_reader(0), content_length(0), cvio(0)
+  {
+    urlstrs_index = 0;
+    linecount = 0;
+    int query_len;
+    char query[4096];
+    char unescapedQuery[sizeof(query)];
+    show_cache_urlstrs = NULL;
+    URL *u = h->url_get();
+
+    // process the query string
+    if (u->query_get(&query_len) && query_len < (int)sizeof(query)) {
+      strncpy(query, u->query_get(&query_len), query_len);
+      strncpy(unescapedQuery, u->query_get(&query_len), query_len);
+
+      query[query_len] = unescapedQuery[query_len] = '\0';
+
+      query_len = unescapifyStr(query);
+
+      Debug("cache_inspector", "query params: '%s' len %d [unescaped]", unescapedQuery, query_len);
+      Debug("cache_inspector", "query params: '%s' len %d [escaped]", query, query_len);
+
+      // remove 'C-m' s
+      unsigned l, m;
+      for (l = 0, m = 0; l < (unsigned)query_len; l++) {
+        if (query[l] != '\015') {
+            query[m++] = query[l];
+        }
+      }
+      query[m] = '\0';
+
+      unsigned nstrings = 1;
+      char *p = strstr(query, "url=");
+      // count the no of urls
+      if (p) {
+        while ((p = strstr(p, "\n"))) {
+          nstrings++;
+          if ((size_t) (p - query) >= strlen(query) - 1)
+            break;
+          else
+            p++;
+        }
+      }
+      // initialize url array
+      show_cache_urlstrs = new char[nstrings + 1][500];
+      memset(show_cache_urlstrs, '\0', (nstrings + 1) * 500 * sizeof (char));
+
+      char *q, *t;
+      p = strstr(unescapedQuery, "url=");
+      if (p) {
+        p += 4;                 // 4 ==> strlen("url=")
+        t = strchr(p, '&');
+        if (!t)
+          t = (char *) unescapedQuery + strlen(unescapedQuery);
+        for (int s = 0; p < t; s++) {
+          show_cache_urlstrs[s][0] = '\0';
+          q = strstr(p, "%0D%0A" /* \r\n */);      // we used this in the JS to separate urls
+          if (!q)
+            q = t;
+          ink_strlcpy(show_cache_urlstrs[s], p, sizeof(show_cache_urlstrs[s]));
+          p = q + 6;            // +6 ==> strlen(%0D%0A)
+        }
+      }
+
+      Debug("cache_inspector", "there were %d url(s) passed in", nstrings == 1 ? 1 : nstrings - 1);
+
+      for (unsigned i = 0; i < nstrings; i++) {
+        if (show_cache_urlstrs[i][0] == '\0') {
+          continue;
+        }
+        Debug("cache_inspector", "URL %d: '%s'", i + 1, show_cache_urlstrs[i]);
+        unescapifyStr(show_cache_urlstrs[i]);
+        Debug("cache_inspector", "URL %d: '%s'", i + 1, show_cache_urlstrs[i]);
+      }
+
+    }
+
+    SET_HANDLER(&ShowCache::showMain);
+  }
+
+  ~ShowCache() {
+    if (show_cache_urlstrs)
+      delete[]show_cache_urlstrs;
+    url.destroy();
+  }
+
+};
+
+#define STREQ_PREFIX(_x,_s) (!strncasecmp(_x,_s,sizeof(_s)-1))
+#define STREQ_LEN_PREFIX(_x,_l,_s) (path_len < sizeof(_s) && !strncasecmp(_x,_s,sizeof(_s)-1))
+
+
+Action *
+register_ShowCache(Continuation *c, HTTPHdr *h) {
+  ShowCache * theshowcache = new ShowCache(c, h);
+  URL *u = h->url_get();
+  int path_len;
+  const char *path = u->path_get(&path_len);
+
+  if (!path) {
+  } else if (STREQ_PREFIX(path, "lookup_url_form")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::lookup_url_form);
+  } else if (STREQ_PREFIX(path, "delete_url_form")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::delete_url_form);
+  } else if (STREQ_PREFIX(path, "lookup_regex_form")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::lookup_regex_form);
+  } else if (STREQ_PREFIX(path, "delete_regex_form")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::delete_regex_form);
+  } else if (STREQ_PREFIX(path, "invalidate_regex_form")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::invalidate_regex_form);
+  }
+
+  else if (STREQ_PREFIX(path, "lookup_url")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::lookup_url);
+  } else if (STREQ_PREFIX(path, "delete_url")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::delete_url);
+  } else if (STREQ_PREFIX(path, "lookup_regex")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::lookup_regex);
+  } else if (STREQ_PREFIX(path, "delete_regex")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::delete_regex);
+  } else if (STREQ_PREFIX(path, "invalidate_regex")) {
+    SET_CONTINUATION_HANDLER(theshowcache, &ShowCache::invalidate_regex);
+  }
+
+  if (theshowcache->mutex->thread_holding) {
+    CONT_SCHED_LOCK_RETRY(theshowcache);
+  } else {
+    eventProcessor.schedule_imm(theshowcache, ET_TASK);
+  }
+
+  return &theshowcache->action;
+}
+
+int
+ShowCache::showMain(int event, Event *e) {
+  CHECK_SHOW(begin("Cache"));
+  CHECK_SHOW(show("<H3><A HREF=\"./lookup_url_form\">Lookup url</A></H3>\n"
+                  "<H3><A HREF=\"./delete_url_form\">Delete url</A></H3>\n"
+                  "<H3><A HREF=\"./lookup_regex_form\">Regex lookup</A></H3>\n"
+                  "<H3><A HREF=\"./delete_regex_form\">Regex delete</A></H3>\n"
+                  "<H3><A HREF=\"./invalidate_regex_form\">Regex invalidate</A></H3>\n\n"));
+  return complete(event, e);
+}
+
+int
+ShowCache::lookup_url_form(int event, Event *e)
+{
+  CHECK_SHOW(begin("Cache Lookup"));
+  CHECK_SHOW(show("<FORM METHOD=\"GET\" ACTION=\"./lookup_url\">\n"
+                  "<H3>Lookup</H3>\n"
+                  "<INPUT TYPE=\"TEXT\" NAME=\"url\" value=\"http://\">\n"
+                  "<INPUT TYPE=\"SUBMIT\" value=\"Lookup\">\n" "</FORM>\n\n"));
+  return complete(event, e);
+}
+
+int
+ShowCache::delete_url_form(int event, Event *e) {
+  CHECK_SHOW(begin("Cache Delete"));
+  CHECK_SHOW(show("<FORM METHOD=\"GET\" ACTION=\"./delete_url\">\n"
+                  "<P><B>Type the list urls that you want to delete\n"
+                  "in the box below. The urls MUST be separated by\n"
+                  "new lines</B></P>\n\n"
+                  "<TEXTAREA NAME=\"url\" rows=10 cols=50>"
+                  "http://" "</TEXTAREA>\n" "<INPUT TYPE=\"SUBMIT\" value=\"Delete\">\n" "</FORM>\n\n"));
+  return complete(event, e);
+}
+
+int
+ShowCache::lookup_regex_form(int event, Event *e)
+{
+  CHECK_SHOW(begin("Cache Regex Lookup"));
+  CHECK_SHOW(show("<FORM METHOD=\"GET\" ACTION=\"./lookup_regex\">\n"
+                  "<P><B>Type the list of regular expressions that you want to lookup\n"
+                  "in the box below. The regular expressions MUST be separated by\n"
+                  "new lines</B></P>\n\n"
+                  "<TEXTAREA NAME=\"url\" rows=10 cols=50>"
+                  "http://" "</TEXTAREA>\n" "<INPUT TYPE=\"SUBMIT\" value=\"Lookup\">\n" "</FORM>\n\n"));
+  return complete(event, e);
+}
+
+int
+ShowCache::delete_regex_form(int event, Event *e) {
+  CHECK_SHOW(begin("Cache Regex delete"));
+  CHECK_SHOW(show("<FORM METHOD=\"GET\" ACTION=\"./delete_regex\">\n"
+                  "<P><B>Type the list of regular expressions that you want to delete\n"
+                  "in the box below. The regular expressions MUST be separated by\n"
+                  "new lines</B></P>\n\n"
+                  "<TEXTAREA NAME=\"url\" rows=10 cols=50>"
+                  "http://" "</TEXTAREA>\n" "<INPUT TYPE=\"SUBMIT\" value=\"Delete\">\n" "</FORM>\n\n"));
+  return complete(event, e);
+}
+
+int
+ShowCache::invalidate_regex_form(int event, Event *e) {
+  CHECK_SHOW(begin("Cache Regex Invalidate"));
+  CHECK_SHOW(show("<FORM METHOD=\"GET\" ACTION=\"./invalidate_regex\">\n"
+                  "<P><B>Type the list of regular expressions that you want to invalidate\n"
+                  "in the box below. The regular expressions MUST be separated by\n"
+                  "new lines</B></P>\n\n"
+                  "<TEXTAREA NAME=\"url\" rows=10 cols=50>"
+                  "http://" "</TEXTAREA>\n" "<INPUT TYPE=\"SUBMIT\" value=\"Invalidate\">\n" "</FORM>\n"));
+  return complete(event, e);
+}
+
+
+int
+ShowCache::handleCacheEvent(int event, Event *e) {
+  // we use VC_EVENT_xxx to finish the cluster read in cluster mode
+  switch (event) {
+    case VC_EVENT_EOS:
+    case VC_EVENT_READ_COMPLETE: {
+      // cluster read done, we just print hit in cluster
+      CHECK_SHOW(show("<P><TABLE border=1 width=100%%>"));
+      CHECK_SHOW(show("<TR><TH bgcolor=\"#FFF0E0\" colspan=2>Doc Hit from Cluster</TH></TR>\n"));
+      CHECK_SHOW(show("<tr><td>Size</td><td>%" PRId64 "</td>\n", content_length));
+
+      // delete button
+      CHECK_SHOW(show("<tr><td>Action</td>\n"
+                      "<td><FORM action=\"./delete_url\" method=get>\n"
+                      "<Input type=HIDDEN name=url value=\"%s\">\n"
+                      "<input type=submit value=\"Delete URL\">\n" "</FORM></td></tr>\n",
+                      show_cache_urlstrs[0]));
+      CHECK_SHOW(show("</TABLE></P>"));
+
+      if (buffer_reader) {
+        buffer->dealloc_reader(buffer_reader);
+        buffer_reader = 0;
+      }
+      if (buffer) {
+        free_MIOBuffer(buffer);
+        buffer = 0;
+      }
+      cvio = 0;
+      cache_vc->do_io_close(-1);
+      cache_vc = 0;
+      return complete(event, e);
+    }
+    case CACHE_EVENT_OPEN_READ: {
+      // get the vector
+      cache_vc = (CacheVC *) e;
+      CacheHTTPInfoVector *vec = &(cache_vc->vector);
+      int alt_count = vec->count();
+      if (alt_count) {
+        Doc *d = (Doc *) (cache_vc->first_buf->data());
+        time_t t;
+        char tmpstr[4096];
+
+        // print the Doc
+        CHECK_SHOW(show("<P><TABLE border=1 width=100%%>"));
+        CHECK_SHOW(show("<TR><TH bgcolor=\"#FFF0E0\" colspan=2>Doc</TH></TR>\n"));
+        CHECK_SHOW(show("<TR><TD>Volume</td> <td>#%d - store='%s'</td></tr>\n", cache_vc->vol->cache_vol->vol_number, cache_vc->vol->path));
+        CHECK_SHOW(show("<TR><TD>first key</td> <td>%s</td></tr>\n", d->first_key.string(tmpstr)));
+        CHECK_SHOW(show("<TR><TD>key</td> <td>%s</td></tr>\n", d->key.string(tmpstr)));
+        CHECK_SHOW(show("<tr><td>sync_serial</td><td>%lu</tr>\n", d->sync_serial));
+        CHECK_SHOW(show("<tr><td>write_serial</td><td>%lu</tr>\n", d->write_serial));
+        CHECK_SHOW(show("<tr><td>header length</td><td>%lu</tr>\n", d->hlen));
+        CHECK_SHOW(show("<tr><td>fragment type</td><td>%lu</tr>\n", d->ftype));
+        CHECK_SHOW(show("<tr><td>No of Alternates</td><td>%d</td></tr>\n", alt_count));
+
+        CHECK_SHOW(show("<tr><td>Action</td>\n"
+                        "<td><FORM action=\"./delete_url\" method=get>\n"
+                        "<Input type=HIDDEN name=url value=\"%s\">\n"
+                        "<input type=submit value=\"Delete URL\">\n" "</FORM></td></tr>\n",
+                        show_cache_urlstrs[0]));
+        CHECK_SHOW(show("</TABLE></P>"));
+
+        for (int i = 0; i < alt_count; i++) {
+          // unmarshal the alternate??
+          CHECK_SHOW(show("<p><table border=1>\n"));
+          CHECK_SHOW(show("<tr><th bgcolor=\"#FFF0E0\" colspan=2>Alternate %d</th></tr>\n", i + 1));
+          CacheHTTPInfo *obj = vec->get(i);
+          CacheKey obj_key = obj->object_key_get();
+          HTTPHdr *cached_request = obj->request_get();
+          HTTPHdr *cached_response = obj->response_get();
+          int64_t obj_size = obj->object_size_get();
+          int offset, tmp, used, done;
+          char b[4096];
+
+          // print request header
+          CHECK_SHOW(show("<tr><td>Request Header</td><td><PRE>"));
+          offset = 0;
+          do {
+            used = 0;
+            tmp = offset;
+            done = cached_request->print(b, 4095, &used, &tmp);
+            offset += used;
+            b[used] = '\0';
+            CHECK_SHOW(show("%s", b));
+          } while (!done);
+          CHECK_SHOW(show("</PRE></td><tr>\n"));
+
+          // print response header
+          CHECK_SHOW(show("<tr><td>Response Header</td><td><PRE>"));
+          offset = 0;
+          do {
+            used = 0;
+            tmp = offset;
+            done = cached_response->print(b, 4095, &used, &tmp);
+            offset += used;
+            b[used] = '\0';
+            CHECK_SHOW(show("%s", b));
+          } while (!done);
+          CHECK_SHOW(show("</PRE></td></tr>\n"));
+          CHECK_SHOW(show("<tr><td>Size</td><td>%" PRId64 "</td>\n", obj_size));
+          CHECK_SHOW(show("<tr><td>Key</td><td>%s</td>\n", obj_key.string(tmpstr)));
+          t = obj->request_sent_time_get();
+          ink_ctime_r(&t, tmpstr);
+          CHECK_SHOW(show("<tr><td>Request sent time</td><td>%s</td></tr>\n", tmpstr));
+          t = obj->response_received_time_get();
+          ink_ctime_r(&t, tmpstr);
+
+          CHECK_SHOW(show("<tr><td>Response received time</td><td>%s</td></tr>\n", tmpstr));
+          CHECK_SHOW(show("</TABLE></P>"));
+        }
+
+        cache_vc->do_io_close(-1);
+        return complete(event, e);
+      }
+      // open success but no vector, that is the Cluster open read, pass through
+    }
+    case VC_EVENT_READ_READY:
+      if (!cvio) {
+        buffer = new_empty_MIOBuffer();
+        buffer_reader = buffer->alloc_reader();
+        content_length = cache_vc->get_object_size();
+        cvio = cache_vc->do_io_read(this, content_length, buffer);
+      } else
+        buffer_reader->consume(buffer_reader->read_avail());
+      return EVENT_DONE;
+    case CACHE_EVENT_OPEN_READ_FAILED:
+      // something strange happen, or cache miss in cluster mode.
+      CHECK_SHOW(show("<H3>Cache Lookup Failed, or missing in cluster</H3>\n"));
+      return complete(event, e);
+    default:
+      CHECK_SHOW(show("<H3>Cache Miss</H3>\n"));
+      return complete(event, e);
+  }
+}
+
+int
+ShowCache::lookup_url(int event, Event *e) {
+  char header_str[300];
+
+  snprintf(header_str, sizeof(header_str), "<font color=red>%s</font>", show_cache_urlstrs[0]);
+  CHECK_SHOW(begin(header_str));
+  url.create(NULL);
+  const char *s;
+  s = show_cache_urlstrs[0];
+  url.parse(&s, s + strlen(s));
+  INK_MD5 md5;
+  int len;
+  url.MD5_get(&md5);
+  const char *hostname = url.host_get(&len);
+  SET_HANDLER(&ShowCache::handleCacheEvent);
+  Action *lookup_result = cacheProcessor.open_read(this, &md5, getClusterCacheLocal(&url, (char *)hostname), CACHE_FRAG_TYPE_HTTP, (char *) hostname, len);
+  if (!lookup_result)
+    lookup_result = ACTION_IO_ERROR;
+  if (lookup_result == ACTION_RESULT_DONE)
+    return EVENT_DONE;        // callback complete
+  else if (lookup_result == ACTION_IO_ERROR) {
+    handleEvent(CACHE_EVENT_OPEN_READ_FAILED, 0);
+    return EVENT_DONE;        // callback complete
+  } else
+    return EVENT_CONT;        // callback pending, will be a cluster read.
+}
+
+
+int
+ShowCache::delete_url(int event, Event *e)
+{
+  if (urlstrs_index == 0) {
+    // print the header the first time delete_url is called
+    CHECK_SHOW(begin("Delete URL"));
+    CHECK_SHOW(show("<B><TABLE border=1>\n"));
+  }
+
+
+  if (strcmp(show_cache_urlstrs[urlstrs_index], "") == 0) {
+    // close the page when you reach the end of the
+    // url list
+    CHECK_SHOW(show("</TABLE></B>\n"));
+    return complete(event, e);
+  }
+  url.create(NULL);
+  const char *s;
+  s = show_cache_urlstrs[urlstrs_index];
+  CHECK_SHOW(show("<TR><TD>%s</TD>", s));
+  url.parse(&s, s + strlen(s));
+  SET_HANDLER(&ShowCache::handleCacheDeleteComplete);
+  // increment the index so that the next time
+  // delete_url is called you delete the next url
+  urlstrs_index++;
+  int len;
+  const char *hostname = url.host_get(&len);
+  cacheProcessor.remove(this, &url, getClusterCacheLocal(&url, (char *)hostname), CACHE_FRAG_TYPE_HTTP);
+  return EVENT_DONE;
+}
+
+int
+ShowCache::handleCacheDeleteComplete(int event, Event *e)
+{
+
+  if (event == CACHE_EVENT_REMOVE) {
+    CHECK_SHOW(show("<td>Delete <font color=green>succeeded</font></td></tr>\n"));
+  } else {
+    CHECK_SHOW(show("<td>Delete <font color=red>failed</font></td></tr>\n"));
+  }
+  return delete_url(event, e);
+
+}
+
+
+int
+ShowCache::lookup_regex(int event, Event *e)
+{
+  CHECK_SHOW(begin("Regex Lookup"));
+  CHECK_SHOW(show("<SCRIPT LANGIAGE=\"Javascript1.2\">\n"
+                  "urllist = new Array(100);\n"
+                  "index = 0;\n"
+                  "function addToUrlList(input) {\n"
+                  "	for (c=0; c < index; c++) {\n"
+                  "		if (urllist[c] == encodeURIComponent(input.name)) {\n"
+                  "			urllist.splice(c,1);\n"
+                  "			index--;\n"
+                  "			return true;\n"
+                  "		}\n"
+                  "	}\n"
+                  "	urllist[index++] = encodeURIComponent(input.name);\n"
+                  "	return true;\n"
+                  "}\n"
+                  "function setUrls(form) {\n"
+                  "	form.elements[0].value=\"\";\n"
+                  "   if (index > 10) {\n"
+                  "           alert(\"Can't choose more than 10 urls for deleting\");\n"
+                  "           return true;\n"
+                  "}\n"
+                  "	for (c=0; c < index; c++){\n"
+                  "		form.elements[0].value += urllist[c]+ \"%%0D%%0A\";\n"
+                  "	}\n"
+                  "   if (form.elements[0].value == \"\"){\n"
+                  "	    alert(\"Please select atleast one url before clicking delete\");\n"
+                  "       return true;\n"
+                  "}\n"
+                  "   srcfile=\"./delete_url?url=\" + form.elements[0].value;\n"
+                  "   document.location=srcfile;\n " "	return true;\n" "}\n" "</SCRIPT>\n"));
+
+  CHECK_SHOW(show("<FORM NAME=\"f\" ACTION=\"./delete_url\" METHOD=GET> \n"
+                  "<INPUT TYPE=HIDDEN NAME=\"url\">\n" "<B><TABLE border=1>\n"));
+
+  scan_flag = scan_type_lookup;                //lookup
+  SET_HANDLER(&ShowCache::handleCacheScanCallback);
+  cacheProcessor.scan(this);
+  return EVENT_DONE;
+}
+
+int
+ShowCache::delete_regex(int event, Event *e)
+{
+  CHECK_SHOW(begin("Regex Delete"));
+  CHECK_SHOW(show("<B><TABLE border=1>\n"));
+  scan_flag = scan_type_delete;                // delete
+  SET_HANDLER(&ShowCache::handleCacheScanCallback);
+  cacheProcessor.scan(this);
+  return EVENT_DONE;
+
+}
+
+
+int
+ShowCache::invalidate_regex(int event, Event *e)
+{
+  CHECK_SHOW(begin("Regex Invalidate"));
+  CHECK_SHOW(show("<B><TABLE border=1>\n"));
+  scan_flag = scan_type_invalidate;                // invalidate
+  SET_HANDLER(&ShowCache::handleCacheScanCallback);
+  cacheProcessor.scan(this);
+  return EVENT_DONE;
+
+}
+
+
+
+int
+ShowCache::handleCacheScanCallback(int event, Event *e)
+{
+  switch (event) {
+  case CACHE_EVENT_SCAN:{
+      cache_vc = (CacheVC *) e;
+      return EVENT_CONT;
+    }
+  case CACHE_EVENT_SCAN_OBJECT:{
+      HTTPInfo *alt = (HTTPInfo *) e;
+      char xx[501], m[501];
+      int ib = 0, xd = 0, ml = 0;
+
+      alt->request_get()->url_print(xx, 500, &ib, &xd);
+      xx[ib] = '\0';
+
+      const char *mm = alt->request_get()->method_get(&ml);
+
+      memcpy(m, mm, ml);
+      m[ml] = 0;
+
+      int res = CACHE_SCAN_RESULT_CONTINUE;
+
+      for (unsigned s = 0; show_cache_urlstrs[s][0] != '\0'; s++) {
+        const char* error;
+        int erroffset;
+        pcre* preq =  pcre_compile(show_cache_urlstrs[s], 0, &error, &erroffset, NULL);
+
+        Debug("cache_inspector", "matching url '%s' '%s' with regex '%s'\n", m, xx, show_cache_urlstrs[s]);
+
+        if (preq) {
+          int r = pcre_exec(preq, NULL, xx, ib, 0, 0, NULL, 0);
+
+          pcre_free(preq);
+          if (r != -1) {
+            linecount++;
+            if ((linecount % 5) == 0) {
+              CHECK_SHOW(show("<TR bgcolor=\"#FFF0E0\">"));
+            } else {
+              CHECK_SHOW(show("<TR>"));
+            }
+
+            switch (scan_flag) {
+            case scan_type_lookup:
+              /*Y! Bug: 2249781: using onClick() because i need encodeURIComponent() and YTS doesn't have something like that */
+              CHECK_SHOW(show("<TD><INPUT TYPE=CHECKBOX NAME=\"%s\" "
+                              "onClick=\"addToUrlList(this)\"></TD>"
+                              "<TD><A onClick='window.location.href=\"./lookup_url?url=\"+ encodeURIComponent(\"%s\");' HREF=\"#\">"
+                              "<B>%s</B></A></br></TD></TR>\n", xx, xx, xx));
+              break;
+            case scan_type_delete:
+              CHECK_SHOW(show("<TD><B>%s</B></TD>" "<TD><font color=red>deleted</font></TD></TR>\n", xx));
+              res = CACHE_SCAN_RESULT_DELETE;
+              break;
+            case scan_type_invalidate:
+              HTTPInfo new_info;
+              res = CACHE_SCAN_RESULT_UPDATE;
+              new_info.copy(alt);
+              new_info.response_get()->set_cooked_cc_need_revalidate_once();
+              CHECK_SHOW(show("<TD><B>%s</B></TD>" "<TD><font color=red>Invalidate</font></TD>" "</TR>\n", xx));
+              cache_vc->set_http_info(&new_info);
+            }
+
+            break;
+          }
+        } else {
+          // TODO: Regex didn't compile, show errors ?
+          Debug("cache_inspector", "regex '%s' didn't compile", show_cache_urlstrs[s]);
+        }
+      }
+      return res;
+    }
+  case CACHE_EVENT_SCAN_DONE:
+    CHECK_SHOW(show("</TABLE></B>\n"));
+    if (scan_flag == 0)
+      if (linecount) {
+        CHECK_SHOW(show("<P><INPUT TYPE=button value=\"Delete\" "
+                        "onClick=\"setUrls(window.document.f)\"></P>" "</FORM>\n"));
+      }
+    CHECK_SHOW(show("<H3>Done</H3>\n"));
+    Debug("cache_inspector", "scan done");
+    complete(event, e);
+    return EVENT_DONE;
+  case CACHE_EVENT_SCAN_FAILED:
+  default:
+    CHECK_SHOW(show("<H3>Error while scanning disk</H3>\n"));
+    return EVENT_DONE;
+  }
+}
+
diff --git a/iocore/cache/CachePagesInternal.cc b/iocore/cache/CachePagesInternal.cc
new file mode 100644
index 00000000..316b499f
--- /dev/null
+++ b/iocore/cache/CachePagesInternal.cc
@@ -0,0 +1,340 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+
+#include "Show.h"
+#include "I_Tasks.h"
+
+struct ShowCacheInternal: public ShowCont
+{
+  int vol_index;
+  int seg_index;
+  CacheKey show_cache_key;
+  CacheVC *cache_vc;
+
+
+  int showMain(int event, Event * e);
+  int showEvacuations(int event, Event * e);
+  int showVolEvacuations(int event, Event * e);
+  int showVolumes(int event, Event * e);
+  int showVolVolumes(int event, Event * e);
+  int showSegments(int event, Event * e);
+  int showSegSegment(int event, Event * e);
+#ifdef CACHE_STAT_PAGES
+  int showConnections(int event, Event * e);
+  int showVolConnections(int event, Event * e);
+#endif
+
+  ShowCacheInternal(Continuation * c, HTTPHdr * h)
+    : ShowCont(c, h), vol_index(0), seg_index(0)
+  {
+    SET_HANDLER(&ShowCacheInternal::showMain);
+  }
+
+  ~ShowCacheInternal() {
+  }
+
+};
+extern ShowCacheInternal *theshowcacheInternal;
+Action *register_ShowCacheInternal(Continuation * c, HTTPHdr * h);
+
+
+
+
+extern Vol **gvol;
+extern volatile int gnvol;
+
+
+// Stat Pages
+ShowCacheInternal *theshowcacheInternal = NULL;
+
+
+#define STREQ_PREFIX(_x,_s) (!strncasecmp(_x,_s,sizeof(_s)-1))
+#define STREQ_LEN_PREFIX(_x,_l,_s) (path_len < sizeof(_s) && !strncasecmp(_x,_s,sizeof(_s)-1))
+
+
+Action *
+register_ShowCacheInternal(Continuation * c, HTTPHdr * h)
+{
+  theshowcacheInternal = new ShowCacheInternal(c, h);
+  URL *u = h->url_get();
+
+  int path_len;
+  const char *path = u->path_get(&path_len);
+
+  if (!path) {
+  }
+#ifdef CACHE_STAT_PAGES
+  else if (STREQ_LEN_PREFIX(path, path_len, "connections")) {
+    SET_CONTINUATION_HANDLER(theshowcacheInternal, &ShowCacheInternal::showConnections);
+  }
+#endif
+  else if (STREQ_PREFIX(path, "evacuations")) {
+    SET_CONTINUATION_HANDLER(theshowcacheInternal, &ShowCacheInternal::showEvacuations);
+  } else if (STREQ_PREFIX(path, "volumes")) {
+    SET_CONTINUATION_HANDLER(theshowcacheInternal, &ShowCacheInternal::showVolumes);
+  }
+
+  if (theshowcacheInternal->mutex->thread_holding)
+    CONT_SCHED_LOCK_RETRY(theshowcacheInternal);
+  else
+    eventProcessor.schedule_imm(theshowcacheInternal, ET_TASK);
+  return &theshowcacheInternal->action;
+}
+
+
+int
+ShowCacheInternal::showMain(int event, Event * e)
+{
+  CHECK_SHOW(begin("Cache"));
+#ifdef CACHE_STAT_PAGES
+  CHECK_SHOW(show("<H3>Show <A HREF=\"./connections\">Connections</A></H3>\n"
+                  "<H3>Show <A HREF=\"./evacuations\">Evacuations</A></H3>\n"
+                  "<H3>Show <A HREF=\"./volumes\">Volumes</A></H3>\n"));
+#else
+  CHECK_SHOW(show("<H3>Show <A HREF=\"./evacuations\">Evacuations</A></H3>\n"
+                  "<H3>Show <A HREF=\"./volumes\">Volumes</A></H3>\n"));
+#endif
+  return complete(event, e);
+}
+
+#ifdef CACHE_STAT_PAGES
+int
+ShowCacheInternal::showConnections(int event, Event * e)
+{
+  CHECK_SHOW(begin("Cache VConnections"));
+  CHECK_SHOW(show("<H3>Cache Connections</H3>\n"
+                  "<table border=1><tr>"
+                  "<th>Operation</th>"
+                  "<th>Volume</th>"
+                  "<th>URL/Hash</th>" "<th>Bytes Done</th>" "<th>Total Bytes</th>" "<th>Bytes Todo</th>" "</tr>\n"));
+
+  SET_HANDLER(&ShowCacheInternal::showVolConnections);
+  CONT_SCHED_LOCK_RETRY_RET(this);
+}
+
+
+int
+ShowCacheInternal::showVolConnections(int event, Event * e)
+{
+  CACHE_TRY_LOCK(lock, gvol[vol_index]->mutex, mutex->thread_holding);
+  if (!lock) {
+    CONT_SCHED_LOCK_RETRY_RET(this);
+  }
+  for (CacheVC * vc = (CacheVC *) gvol[vol_index]->stat_cache_vcs.head; vc; vc = vc->stat_link.next) {
+
+    char nbytes[60], todo[60], url[81092];
+    int ib = 0, xd = 0;
+    URL uu;
+
+    MUTEX_LOCK(lock2, vc->mutex, mutex->thread_holding);
+    // if vc is closed ignore - Ramki 08/30/2000
+    if (vc->closed == 1)
+      continue;
+    sprintf(nbytes, "%d", vc->vio.nbytes);
+    sprintf(todo, "%d", vc->vio.ntodo());
+
+    if (vc->f.frag_type == CACHE_FRAG_TYPE_HTTP && vc->request.valid()) {
+      URL *u = vc->request.url_get(&uu);
+      u->print(url, 8000, &ib, &xd);
+      url[ib] = 0;
+    } else if (vc->alternate.valid()) {
+      URL *u = vc->alternate.request_url_get(&uu);
+      u->print(url, 8000, &ib, &xd);
+      url[ib] = 0;
+    } else
+      vc->key.string(url);
+    CHECK_SHOW(show("<tr>" "<td>%s</td>"        // operation
+                    "<td>%s</td>"       // Vol
+                    "<td>%s</td>"       // URL/Hash
+                    "<td>%d</td>"
+                    "<td>%s</td>"
+                    "<td>%s</td>"
+                    "</tr>\n",
+                    ((vc->vio.op == VIO::READ) ? "Read" : "Write"),
+                    vc->vol->hash_id,
+                    url,
+                    vc->vio.ndone,
+                    vc->vio.nbytes == INT64_MAX ? "all" : nbytes, vc->vio.nbytes == INT64_MAX ? "all" : todo));
+  }
+  vol_index++;
+  if (vol_index < gnvol)
+    CONT_SCHED_LOCK_RETRY(this);
+  else {
+    CHECK_SHOW(show("</table>\n"));
+    return complete(event, e);
+  }
+  return EVENT_CONT;
+}
+
+#endif
+
+
+int
+ShowCacheInternal::showEvacuations(int event, Event * e)
+{
+  CHECK_SHOW(begin("Cache Pending Evacuations"));
+  CHECK_SHOW(show("<H3>Cache Evacuations</H3>\n"
+                  "<table border=1><tr>"
+                  "<th>Offset</th>" "<th>Estimated Size</th>" "<th>Reader Count</th>" "<th>Done</th>" "</tr>\n"));
+
+  SET_HANDLER(&ShowCacheInternal::showVolEvacuations);
+  CONT_SCHED_LOCK_RETRY_RET(this);
+}
+
+
+int
+ShowCacheInternal::showVolEvacuations(int event, Event * e)
+{
+  Vol *p = gvol[vol_index];
+  CACHE_TRY_LOCK(lock, p->mutex, mutex->thread_holding);
+  if (!lock)
+    CONT_SCHED_LOCK_RETRY_RET(this);
+
+  EvacuationBlock *b;
+  int last = (p->len - (p->start - p->skip)) / EVACUATION_BUCKET_SIZE;
+  for (int i = 0; i < last; i++) {
+    for (b = p->evacuate[i].head; b; b = b->link.next) {
+      char offset[60];
+      sprintf(offset, "%" PRIu64 "", (uint64_t) vol_offset(p, &b->dir));
+      CHECK_SHOW(show("<tr>" "<td>%s</td>"      // offset
+                      "<td>%d</td>"     // estimated size
+                      "<td>%d</td>"     // reader count
+                      "<td>%s</td>"     // done
+                      "</tr>\n", offset, (int) dir_approx_size(&b->dir), b->readers, b->f.done ? "yes" : "no"));
+    }
+  }
+  vol_index++;
+  if (vol_index < gnvol)
+    CONT_SCHED_LOCK_RETRY(this);
+  else {
+    CHECK_SHOW(show("</table>\n"));
+    return complete(event, e);
+  }
+  return EVENT_CONT;
+}
+
+int
+ShowCacheInternal::showVolumes(int event, Event * e)
+{
+  CHECK_SHOW(begin("Cache Volumes"));
+  CHECK_SHOW(show("<H3>Cache Volumes</H3>\n"
+                  "<table border=1><tr>"
+                  "<th>ID</th>"
+                  "<th>Blocks</th>"
+                  "<th>Directory Entries</th>"
+                  "<th>Write Position</th>"
+                  "<th>Write Agg Todo</th>"
+                  "<th>Write Agg Todo Size</th>"
+                  "<th>Write Agg Done</th>"
+                  "<th>Phase</th>" "<th>Create Time</th>" "<th>Sync Serial</th>" "<th>Write Serial</th>" "</tr>\n"));
+
+  SET_HANDLER(&ShowCacheInternal::showVolVolumes);
+  CONT_SCHED_LOCK_RETRY_RET(this);
+}
+
+
+int
+ShowCacheInternal::showVolVolumes(int event, Event * e)
+{
+  Vol *p = gvol[vol_index];
+  CACHE_TRY_LOCK(lock, p->mutex, mutex->thread_holding);
+  if (!lock)
+    CONT_SCHED_LOCK_RETRY_RET(this);
+
+  char ctime[256];
+  ink_ctime_r(&p->header->create_time, ctime);
+  ctime[strlen(ctime) - 1] = 0;
+  int agg_todo = 0;
+  int agg_done = p->agg_buf_pos;
+  CacheVC *c = 0;
+  for (c = p->agg.head; c; c = (CacheVC *) c->link.next)
+    agg_todo++;
+  CHECK_SHOW(show("<tr>" "<td>%s</td>"  // ID
+                  "<td>%" PRId64 "</td>" // blocks
+                  "<td>%" PRId64 "</td>" // directory entries
+                  "<td>%" PRId64 "</td>" // write position
+                  "<td>%d</td>" // write agg to do
+                  "<td>%d</td>" // write agg to do size
+                  "<td>%d</td>" // write agg done
+                  "<td>%d</td>" // phase
+                  "<td>%s</td>" // create time
+                  "<td>%u</td>" // sync serial
+                  "<td>%u</td>" // write serial
+                  "</tr>\n",
+                  p->hash_id,
+                  (uint64_t)((p->len - (p->start - p->skip)) / CACHE_BLOCK_SIZE),
+                  (uint64_t)(p->buckets * DIR_DEPTH * p->segments),
+                  (uint64_t)((p->header->write_pos - p->start) / CACHE_BLOCK_SIZE),
+                  agg_todo,
+                  p->agg_todo_size,
+                  agg_done, p->header->phase, ctime, p->header->sync_serial, p->header->write_serial));
+  CHECK_SHOW(show("</table>\n"));
+  SET_HANDLER(&ShowCacheInternal::showSegments);
+  return showSegments(event, e);
+}
+
+int
+ShowCacheInternal::showSegments(int event, Event * e)
+{
+  CHECK_SHOW(show("<H3>Cache Volume Segments</H3>\n"
+                  "<table border=1><tr>"
+                  "<th>Free</th>"
+                  "<th>Used</th>"
+                  "<th>Empty</th>" "<th>Valid</th>" "<th>Agg Valid</th>" "<th>Avg Size</th>" "</tr>\n"));
+
+  SET_HANDLER(&ShowCacheInternal::showSegSegment);
+  seg_index = 0;
+  CONT_SCHED_LOCK_RETRY_RET(this);
+}
+
+int
+ShowCacheInternal::showSegSegment(int event, Event * e)
+{
+  Vol *p = gvol[vol_index];
+  CACHE_TRY_LOCK(lock, p->mutex, mutex->thread_holding);
+  if (!lock)
+    CONT_SCHED_LOCK_RETRY_RET(this);
+  int free = 0, used = 0, empty = 0, valid = 0, agg_valid = 0, avg_size = 0;
+  dir_segment_accounted(seg_index, p, 0, &free, &used, &empty, &valid, &agg_valid, &avg_size);
+  CHECK_SHOW(show("<tr>"
+                  "<td>%d</td>"
+                  "<td>%d</td>"
+                  "<td>%d</td>"
+                  "<td>%d</td>" "<td>%d</td>" "<td>%d</td>" "</tr>\n", free, used, empty, valid, agg_valid, avg_size));
+  seg_index++;
+  if (seg_index < p->segments)
+    CONT_SCHED_LOCK_RETRY(this);
+  else {
+    CHECK_SHOW(show("</table>\n"));
+    seg_index = 0;
+    vol_index++;
+    if (vol_index < gnvol)
+      CONT_SCHED_LOCK_RETRY(this);
+    else
+      return complete(event, e);
+  }
+  return EVENT_CONT;
+}
+
diff --git a/iocore/cache/CacheRead.cc b/iocore/cache/CacheRead.cc
new file mode 100644
index 00000000..e1e55420
--- /dev/null
+++ b/iocore/cache/CacheRead.cc
@@ -0,0 +1,1218 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+
+#ifdef HTTP_CACHE
+#include "HttpCacheSM.h"      //Added to get the scope of HttpCacheSM object.
+#endif
+
+#define READ_WHILE_WRITER 1
+
+Action *
+Cache::open_read(Continuation * cont, CacheKey * key, CacheFragType type, char *hostname, int host_len)
+{
+  if (!CacheProcessor::IsCacheReady(type)) {
+    cont->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -ECACHE_NOT_READY);
+    return ACTION_RESULT_DONE;
+  }
+  ink_assert(caches[type] == this);
+
+  Vol *vol = key_to_vol(key, hostname, host_len);
+  Dir result, *last_collision = NULL;
+  ProxyMutex *mutex = cont->mutex;
+  OpenDirEntry *od = NULL;
+  CacheVC *c = NULL;
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock || (od = vol->open_read(key)) || dir_probe(key, vol, &result, &last_collision)) {
+      c = new_CacheVC(cont);
+      SET_CONTINUATION_HANDLER(c, &CacheVC::openReadStartHead);
+      c->vio.op = VIO::READ;
+      c->base_stat = cache_read_active_stat;
+      CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+      c->first_key = c->key = c->earliest_key = *key;
+      c->vol = vol;
+      c->frag_type = type;
+      c->od = od;
+    }
+    if (!c)
+      goto Lmiss;
+    if (!lock) {
+      CONT_SCHED_LOCK_RETRY(c);
+      return &c->_action;
+    }
+    if (c->od)
+      goto Lwriter;
+    c->dir = result;
+    c->last_collision = last_collision;
+    switch(c->do_read_call(&c->key)) {
+      case EVENT_DONE: return ACTION_RESULT_DONE;
+      case EVENT_RETURN: goto Lcallreturn;
+      default: return &c->_action;
+    }
+  }
+Lmiss:
+  CACHE_INCREMENT_DYN_STAT(cache_read_failure_stat);
+  cont->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -ECACHE_NO_DOC);
+  return ACTION_RESULT_DONE;
+Lwriter:
+  SET_CONTINUATION_HANDLER(c, &CacheVC::openReadFromWriter);
+  if (c->handleEvent(EVENT_IMMEDIATE, 0) == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  return &c->_action;
+Lcallreturn:
+  if (c->handleEvent(AIO_EVENT_DONE, 0) == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  return &c->_action;
+}
+
+#ifdef HTTP_CACHE
+Action *
+Cache::open_read(Continuation * cont, CacheKey * key, CacheHTTPHdr * request,
+                 CacheLookupHttpConfig * params, CacheFragType type, char *hostname, int host_len)
+{
+
+  if (!CacheProcessor::IsCacheReady(type)) {
+    cont->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -ECACHE_NOT_READY);
+    return ACTION_RESULT_DONE;
+  }
+  ink_assert(caches[type] == this);
+
+  Vol *vol = key_to_vol(key, hostname, host_len);
+  Dir result, *last_collision = NULL;
+  ProxyMutex *mutex = cont->mutex;
+  OpenDirEntry *od = NULL;
+  CacheVC *c = NULL;
+
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock || (od = vol->open_read(key)) || dir_probe(key, vol, &result, &last_collision)) {
+      c = new_CacheVC(cont);
+      c->first_key = c->key = c->earliest_key = *key;
+      c->vol = vol;
+      c->vio.op = VIO::READ;
+      c->base_stat = cache_read_active_stat;
+      CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+      c->request.copy_shallow(request);
+      c->frag_type = CACHE_FRAG_TYPE_HTTP;
+      c->params = params;
+      c->od = od;
+    }
+    if (!lock) {
+      SET_CONTINUATION_HANDLER(c, &CacheVC::openReadStartHead);
+      CONT_SCHED_LOCK_RETRY(c);
+      return &c->_action;
+    }
+    if (!c)
+      goto Lmiss;
+    if (c->od)
+      goto Lwriter;
+    // hit
+    c->dir = c->first_dir = result;
+    c->last_collision = last_collision;
+    SET_CONTINUATION_HANDLER(c, &CacheVC::openReadStartHead);
+    switch(c->do_read_call(&c->key)) {
+      case EVENT_DONE: return ACTION_RESULT_DONE;
+      case EVENT_RETURN: goto Lcallreturn;
+      default: return &c->_action;
+    }
+  }
+Lmiss:
+  CACHE_INCREMENT_DYN_STAT(cache_read_failure_stat);
+  cont->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -ECACHE_NO_DOC);
+  return ACTION_RESULT_DONE;
+Lwriter:
+  // this is a horrible violation of the interface and should be fixed (FIXME)
+  ((HttpCacheSM *)cont)->set_readwhilewrite_inprogress(true);
+  SET_CONTINUATION_HANDLER(c, &CacheVC::openReadFromWriter);
+  if (c->handleEvent(EVENT_IMMEDIATE, 0) == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  return &c->_action;
+Lcallreturn:
+  if (c->handleEvent(AIO_EVENT_DONE, 0) == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  return &c->_action;
+}
+#endif
+
+int
+CacheVC::openReadFromWriterFailure(int event, Event * e)
+{
+
+  od = NULL;
+  vector.clear(false);
+  CACHE_INCREMENT_DYN_STAT(cache_read_failure_stat);
+  CACHE_INCREMENT_DYN_STAT(cache_read_busy_failure_stat);
+  _action.continuation->handleEvent(event, e);
+  free_CacheVC(this);
+  return EVENT_DONE;
+}
+
+int
+CacheVC::openReadChooseWriter(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  intptr_t err = ECACHE_DOC_BUSY;
+  CacheVC *w = NULL;
+
+  ink_assert(vol->mutex->thread_holding == mutex->thread_holding && write_vc == NULL);
+
+  if (!od)
+    return EVENT_RETURN;
+
+  if (frag_type != CACHE_FRAG_TYPE_HTTP) {
+    ink_assert(od->num_writers == 1);
+    w = od->writers.head;
+    if (w->start_time > start_time || w->closed < 0) {
+      od = NULL;
+      return EVENT_RETURN;
+    }
+    if (!w->closed)
+      return -err;
+    write_vc = w;
+  }
+#ifdef HTTP_CACHE
+  else {
+    write_vector = &od->vector;
+    int write_vec_cnt = write_vector->count();
+    for (int c = 0; c < write_vec_cnt; c++)
+      vector.insert(write_vector->get(c));
+    // check if all the writers who came before this reader have
+    // set the http_info.
+    for (w = (CacheVC *) od->writers.head; w; w = (CacheVC *) w->opendir_link.next) {
+      if (w->start_time > start_time || w->closed < 0)
+        continue;
+      if (!w->closed && !cache_config_read_while_writer) {
+        return -err;
+      }
+      if (w->alternate_index != CACHE_ALT_INDEX_DEFAULT)
+        continue;
+
+      if (!w->closed && !w->alternate.valid()) {
+        od = NULL;
+        ink_assert(!write_vc);
+        vector.clear(false);
+        return EVENT_CONT;
+      }
+      // construct the vector from the writers.
+      int alt_ndx = CACHE_ALT_INDEX_DEFAULT;
+      if (w->f.update) {
+        // all Update cases. Need to get the alternate index.
+        alt_ndx = get_alternate_index(&vector, w->update_key);
+        // if its an alternate delete
+        if (!w->alternate.valid()) {
+          if (alt_ndx >= 0)
+            vector.remove(alt_ndx, false);
+          continue;
+        }
+      }
+      ink_assert(w->alternate.valid());
+      if (w->alternate.valid())
+        vector.insert(&w->alternate, alt_ndx);
+    }
+
+    if (!vector.count()) {
+      if (od->reading_vec) {
+       // the writer(s) are reading the vector, so there is probably
+        // an old vector. Since this reader came before any of the
+        // current writers, we should return the old data
+        od = NULL;
+        return EVENT_RETURN;
+      }
+      return -ECACHE_NO_DOC;
+    }
+    if (cache_config_select_alternate) {
+      alternate_index = HttpTransactCache::SelectFromAlternates(&vector, &request, params);
+      if (alternate_index < 0)
+        return -ECACHE_ALT_MISS;
+    } else
+      alternate_index = 0;
+    CacheHTTPInfo *obj = vector.get(alternate_index);
+    for (w = (CacheVC *) od->writers.head; w; w = (CacheVC *) w->opendir_link.next) {
+      if (obj->m_alt == w->alternate.m_alt) {
+        write_vc = w;
+        break;
+      }
+    }
+    vector.clear(false);
+    if (!write_vc) {
+      DDebug("cache_read_agg", "%p: key: %X writer alternate different: %d", this, first_key.word(1), alternate_index);
+      od = NULL;
+      return EVENT_RETURN;
+    }
+
+    DDebug("cache_read_agg",
+          "%p: key: %X eKey: %d # alts: %d, ndx: %d, # writers: %d writer: %p",
+          this, first_key.word(1), write_vc->earliest_key.word(1),
+          vector.count(), alternate_index, od->num_writers, write_vc);
+  }
+#endif //HTTP_CACHE
+  return EVENT_NONE;
+}
+
+int
+CacheVC::openReadFromWriter(int event, Event * e)
+{
+  if (!f.read_from_writer_called) {
+    // The assignment to last_collision as NULL was
+    // made conditional after INKqa08411
+    last_collision = NULL;
+    // Let's restart the clock from here - the first time this a reader
+    // gets in this state. Its possible that the open_read was called
+    // before the open_write, but the reader could not get the volume
+    // lock. If we don't reset the clock here, we won't choose any writer
+    // and hence fail the read request.
+    start_time = ink_get_hrtime();
+    f.read_from_writer_called = 1;
+  }
+  cancel_trigger();
+  intptr_t err = ECACHE_DOC_BUSY;
+  DDebug("cache_read_agg", "%p: key: %X In openReadFromWriter", this, first_key.word(1));
+#ifndef READ_WHILE_WRITER
+  return openReadFromWriterFailure(CACHE_EVENT_OPEN_READ_FAILED, (Event *) -err);
+#else
+  if (_action.cancelled) {
+    od = NULL; // only open for read so no need to close
+    return free_CacheVC(this);
+  }
+  CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+  if (!lock)
+    VC_SCHED_LOCK_RETRY();
+  od = vol->open_read(&first_key); // recheck in case the lock failed
+  if (!od) {
+    MUTEX_RELEASE(lock);
+    write_vc = NULL;
+    SET_HANDLER(&CacheVC::openReadStartHead);
+    return openReadStartHead(event, e);
+  } else
+    ink_assert(od == vol->open_read(&first_key));
+  if (!write_vc) {
+    int ret = openReadChooseWriter(event, e);
+    if (ret < 0) {
+      MUTEX_RELEASE(lock);
+      SET_HANDLER(&CacheVC::openReadFromWriterFailure);
+      return openReadFromWriterFailure(CACHE_EVENT_OPEN_READ_FAILED, reinterpret_cast<Event *> (ret));
+    } else if (ret == EVENT_RETURN) {
+      MUTEX_RELEASE(lock);
+      SET_HANDLER(&CacheVC::openReadStartHead);
+      return openReadStartHead(event, e);
+    } else if (ret == EVENT_CONT) {
+      ink_assert(!write_vc);
+      VC_SCHED_WRITER_RETRY();
+    } else
+      ink_assert(write_vc);
+  } else {
+    if (writer_done()) {
+      MUTEX_RELEASE(lock);
+      DDebug("cache_read_agg",
+            "%p: key: %X writer %p has left, continuing as normal read", this, first_key.word(1), write_vc);
+      od = NULL;
+      write_vc = NULL;
+      SET_HANDLER(&CacheVC::openReadStartHead);
+      return openReadStartHead(event, e);
+    }
+  }
+#ifdef HTTP_CACHE
+  OpenDirEntry *cod = od;
+#endif
+  od = NULL;
+  // someone is currently writing the document
+  if (write_vc->closed < 0) {
+    MUTEX_RELEASE(lock);
+    write_vc = NULL;
+    //writer aborted, continue as if there is no writer
+    SET_HANDLER(&CacheVC::openReadStartHead);
+    return openReadStartHead(EVENT_IMMEDIATE, 0);
+  }
+  // allow reading from unclosed writer for http requests only.
+  ink_assert(frag_type == CACHE_FRAG_TYPE_HTTP || write_vc->closed);
+  if (!write_vc->closed && !write_vc->fragment) {
+    if (!cache_config_read_while_writer || frag_type != CACHE_FRAG_TYPE_HTTP) {
+      MUTEX_RELEASE(lock);
+      return openReadFromWriterFailure(CACHE_EVENT_OPEN_READ_FAILED, (Event *) - err);
+    }
+    DDebug("cache_read_agg",
+          "%p: key: %X writer: closed:%d, fragment:%d, retry: %d",
+          this, first_key.word(1), write_vc->closed, write_vc->fragment, writer_lock_retry);
+    VC_SCHED_WRITER_RETRY();
+  }
+
+  CACHE_TRY_LOCK(writer_lock, write_vc->mutex, mutex->thread_holding);
+  if (!writer_lock) {
+    DDebug("cache_read_agg", "%p: key: %X lock miss", this, first_key.word(1));
+    VC_SCHED_LOCK_RETRY();
+  }
+  MUTEX_RELEASE(lock);
+
+  if (!write_vc->io.ok())
+    return openReadFromWriterFailure(CACHE_EVENT_OPEN_READ_FAILED, (Event *) - err);
+#ifdef HTTP_CACHE
+  if (frag_type == CACHE_FRAG_TYPE_HTTP) {
+    DDebug("cache_read_agg",
+          "%p: key: %X http passed stage 1, closed: %d, frag: %d",
+          this, first_key.word(1), write_vc->closed, write_vc->fragment);
+    if (!write_vc->alternate.valid())
+      return openReadFromWriterFailure(CACHE_EVENT_OPEN_READ_FAILED, (Event *) - err);
+    alternate.copy(&write_vc->alternate);
+    vector.insert(&alternate);
+    alternate.object_key_get(&key);
+    write_vc->f.readers = 1;
+    if (!(write_vc->f.update && write_vc->total_len == 0)) {
+      key = write_vc->earliest_key;
+      if (!write_vc->closed)
+        alternate.object_size_set(write_vc->vio.nbytes);
+      else
+        alternate.object_size_set(write_vc->total_len);
+    } else {
+      key = write_vc->update_key;
+      ink_assert(write_vc->closed);
+      DDebug("cache_read_agg", "%p: key: %X writer header update", this, first_key.word(1));
+      // Update case (b) : grab doc_len from the writer's alternate
+      doc_len = alternate.object_size_get();
+      if (write_vc->update_key == cod->single_doc_key &&
+          (cod->move_resident_alt || write_vc->f.rewrite_resident_alt) && write_vc->first_buf._ptr()) {
+        // the resident alternate is being updated and its a
+        // header only update. The first_buf of the writer has the
+        // document body.
+        Doc *doc = (Doc *) write_vc->first_buf->data();
+        writer_buf = new_IOBufferBlock(write_vc->first_buf, doc->data_len(), doc->prefix_len());
+        MUTEX_RELEASE(writer_lock);
+        ink_assert(doc_len == doc->data_len());
+        length = doc_len;
+        f.single_fragment = 1;
+        doc_pos = 0;
+        earliest_key = key;
+        dir_clean(&first_dir);
+        dir_clean(&earliest_dir);
+        SET_HANDLER(&CacheVC::openReadFromWriterMain);
+        CACHE_INCREMENT_DYN_STAT(cache_read_busy_success_stat);
+        return callcont(CACHE_EVENT_OPEN_READ);
+      }
+      // want to snarf the new headers from the writer
+      // and then continue as if nothing happened
+      last_collision = NULL;
+      MUTEX_RELEASE(writer_lock);
+      SET_HANDLER(&CacheVC::openReadStartEarliest);
+      return openReadStartEarliest(event, e);
+    }
+  } else {
+#endif //HTTP_CACHE
+    DDebug("cache_read_agg", "%p: key: %X non-http passed stage 1", this, first_key.word(1));
+    key = write_vc->earliest_key;
+#ifdef HTTP_CACHE
+  }
+#endif
+  if (write_vc->fragment) {
+    doc_len = write_vc->vio.nbytes;
+    last_collision = NULL;
+    DDebug("cache_read_agg",
+          "%p: key: %X closed: %d, fragment: %d, len: %d starting first fragment",
+          this, first_key.word(1), write_vc->closed, write_vc->fragment, (int)doc_len);
+    MUTEX_RELEASE(writer_lock);
+    // either a header + body update or a new document
+    SET_HANDLER(&CacheVC::openReadStartEarliest);
+    return openReadStartEarliest(event, e);
+  }
+  writer_buf = write_vc->blocks;
+  writer_offset = write_vc->offset;
+  length = write_vc->length;
+  // copy the vector
+  f.single_fragment = !write_vc->fragment;        // single fragment doc
+  doc_pos = 0;
+  earliest_key = write_vc->earliest_key;
+  ink_assert(earliest_key == key);
+  doc_len = write_vc->total_len;
+  dir_clean(&first_dir);
+  dir_clean(&earliest_dir);
+  DDebug("cache_read_agg", "%p: key: %X %X: single fragment read", this, first_key.word(1), key.word(0));
+  MUTEX_RELEASE(writer_lock);
+  SET_HANDLER(&CacheVC::openReadFromWriterMain);
+  CACHE_INCREMENT_DYN_STAT(cache_read_busy_success_stat);
+  return callcont(CACHE_EVENT_OPEN_READ);
+#endif //READ_WHILE_WRITER
+}
+
+int
+CacheVC::openReadFromWriterMain(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  if (seek_to) {
+    vio.ndone = seek_to;
+    seek_to = 0;
+  }
+  IOBufferBlock *b = NULL;
+  int64_t ntodo = vio.ntodo();
+  if (ntodo <= 0)
+    return EVENT_CONT;
+  if (length < ((int64_t)doc_len) - vio.ndone) {
+    DDebug("cache_read_agg", "truncation %X", first_key.word(1));
+    if (is_action_tag_set("cache")) {
+      ink_release_assert(false);
+    }
+    Warning("Document %X truncated at %d of %d, reading from writer", first_key.word(1), (int)vio.ndone, (int)doc_len);
+    return calluser(VC_EVENT_ERROR);
+  }
+  /* its possible that the user did a do_io_close before
+     openWriteWriteDone was called. */
+  if (length > ((int64_t)doc_len) - vio.ndone) {
+    int64_t skip_bytes = length - (doc_len - vio.ndone);
+    iobufferblock_skip(writer_buf, &writer_offset, &length, skip_bytes);
+  }
+  int64_t bytes = length;
+  if (bytes > vio.ntodo())
+    bytes = vio.ntodo();
+  if (vio.ndone >= (int64_t)doc_len) {
+    ink_assert(bytes <= 0);
+    // reached the end of the document and the user still wants more
+    return calluser(VC_EVENT_EOS);
+  }
+  b = iobufferblock_clone(writer_buf, writer_offset, bytes);
+  writer_buf = iobufferblock_skip(writer_buf, &writer_offset, &length, bytes);
+  vio.buffer.writer()->append_block(b);
+  vio.ndone += bytes;
+  if (vio.ntodo() <= 0)
+    return calluser(VC_EVENT_READ_COMPLETE);
+  else
+    return calluser(VC_EVENT_READ_READY);
+}
+
+int
+CacheVC::openReadClose(int event, Event * /* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  if (is_io_in_progress()) {
+    if (event != AIO_EVENT_DONE)
+      return EVENT_CONT;
+    set_io_not_in_progress();
+  }
+  CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+  if (!lock)
+    VC_SCHED_LOCK_RETRY();
+  if (f.hit_evacuate && dir_valid(vol, &first_dir) && closed > 0) {
+    if (f.single_fragment)
+      vol->force_evacuate_head(&first_dir, dir_pinned(&first_dir));
+    else if (dir_valid(vol, &earliest_dir)) {
+      vol->force_evacuate_head(&first_dir, dir_pinned(&first_dir));
+      vol->force_evacuate_head(&earliest_dir, dir_pinned(&earliest_dir));
+    }
+  }
+  vol->close_read(this);
+  return free_CacheVC(this);
+}
+
+int
+CacheVC::openReadReadDone(int event, Event * e)
+{
+  Doc *doc = NULL;
+
+  cancel_trigger();
+  if (event == EVENT_IMMEDIATE)
+    return EVENT_CONT;
+  set_io_not_in_progress();
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_SCHED_LOCK_RETRY();
+    if (event == AIO_EVENT_DONE && !io.ok()) {
+      dir_delete(&earliest_key, vol, &earliest_dir);
+      goto Lerror;
+    }
+    if (last_collision &&         // no missed lock
+        dir_valid(vol, &dir))    // object still valid
+    {
+      doc = (Doc *) buf->data();
+      if (doc->magic != DOC_MAGIC) {
+        char tmpstring[100];
+        if (doc->magic == DOC_CORRUPT)
+          Warning("Middle: Doc checksum does not match for %s", key.string(tmpstring));
+        else
+          Warning("Middle: Doc magic does not match for %s", key.string(tmpstring));
+#if TS_USE_INTERIM_CACHE == 1
+        if (dir_ininterim(&dir)) {
+          dir_delete(&key, vol, &dir);
+          goto Lread;
+        }
+#endif
+        goto Lerror;
+      }
+      if (doc->key == key)
+        goto LreadMain;
+#if TS_USE_INTERIM_CACHE == 1
+      else if (dir_ininterim(&dir)) {
+          dir_delete(&key, vol, &dir);
+          last_collision = NULL;
+        }
+#endif
+    }
+#if TS_USE_INTERIM_CACHE == 1
+    if (last_collision && dir_get_offset(&dir) != dir_get_offset(last_collision))
+      last_collision = 0;
+Lread:
+#else
+    if (last_collision && dir_offset(&dir) != dir_offset(last_collision))
+      last_collision = 0;       // object has been/is being overwritten
+#endif
+    if (dir_probe(&key, vol, &dir, &last_collision)) {
+      int ret = do_read_call(&key);
+      if (ret == EVENT_RETURN)
+        goto Lcallreturn;
+      return EVENT_CONT;
+    } else if (write_vc) {
+      if (writer_done()) {
+        last_collision = NULL;
+        while (dir_probe(&earliest_key, vol, &dir, &last_collision)) {
+#if TS_USE_INTERIM_CACHE == 1
+          if (dir_get_offset(&dir) == dir_get_offset(&earliest_dir)) {
+#else
+          if (dir_offset(&dir) == dir_offset(&earliest_dir)) {
+#endif
+            DDebug("cache_read_agg", "%p: key: %X ReadRead complete: %d",
+                  this, first_key.word(1), (int)vio.ndone);
+            doc_len = vio.ndone;
+            goto Ldone;
+          }
+        }
+        DDebug("cache_read_agg", "%p: key: %X ReadRead writer aborted: %d",
+              this, first_key.word(1), (int)vio.ndone);
+        goto Lerror;
+      }
+      DDebug("cache_read_agg", "%p: key: %X ReadRead retrying: %d", this, first_key.word(1), (int)vio.ndone);
+      VC_SCHED_WRITER_RETRY(); // wait for writer
+    }
+    // fall through for truncated documents
+  }
+Lerror:
+  char tmpstring[100];
+  Warning("Document %s truncated", earliest_key.string(tmpstring));
+  return calluser(VC_EVENT_ERROR);
+Ldone:
+  return calluser(VC_EVENT_EOS);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0);
+LreadMain:
+  fragment++;
+  doc_pos = doc->prefix_len();
+  next_CacheKey(&key, &key);
+  SET_HANDLER(&CacheVC::openReadMain);
+  return openReadMain(event, e);
+}
+
+int
+CacheVC::openReadMain(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  Doc *doc = (Doc *) buf->data();
+  int64_t ntodo = vio.ntodo();
+  int64_t bytes = doc->len - doc_pos;
+  IOBufferBlock *b = NULL;
+  if (seek_to) { // handle do_io_pread
+    if (seek_to >= doc_len) {
+      vio.ndone = doc_len;
+      return calluser(VC_EVENT_EOS);
+    }
+#ifdef HTTP_CACHE
+    HTTPInfo::FragOffset* frags = alternate.get_frag_table();
+    if (is_debug_tag_set("cache_seek")) {
+      char b[33], c[33];
+      Debug("cache_seek", "Seek @ %" PRId64" in %s from #%d @ %" PRId64"/%d:%s",
+            seek_to, first_key.toHexStr(b), fragment, doc_pos, doc->len, doc->key.toHexStr(c));
+    }
+    /* Because single fragment objects can migrate to hang off an alt vector
+       they can appear to the VC as multi-fragment when they are not really.
+       The essential difference is the existence of a fragment table.
+    */
+    if (frags) {
+      int target = 0;
+      HTTPInfo::FragOffset next_off = frags[target];
+      int lfi = static_cast<int>(alternate.get_frag_offset_count()) - 1;
+      ink_assert(lfi >= 0); // because it's not a single frag doc.
+
+      /* Note: frag[i].offset is the offset of the first byte past the
+         i'th fragment. So frag[0].offset is the offset of the first
+         byte of fragment 1. In addition the # of fragments is one
+         more than the fragment table length, the start of the last
+         fragment being the last offset in the table.
+      */
+      if (fragment == 0 ||
+          seek_to < frags[fragment-1] ||
+          (fragment <= lfi && frags[fragment] <= seek_to)
+        ) {
+        // search from frag 0 on to find the proper frag
+        while (seek_to >= next_off && target < lfi) {
+          next_off = frags[++target];
+        }
+        if (target == lfi && seek_to >= next_off) ++target;
+      } else { // shortcut if we are in the fragment already
+        target = fragment;
+      }
+      if (target != fragment) {
+        // Lread will read the next fragment always, so if that
+        // is the one we want, we don't need to do anything
+        int cfi = fragment;
+        --target;
+        while (target > fragment) {
+          next_CacheKey(&key, &key);
+          ++fragment;
+        }
+        while (target < fragment) {
+          prev_CacheKey(&key, &key);
+          --fragment;
+        }
+
+        if (is_debug_tag_set("cache_seek")) {
+          char target_key_str[33];
+          key.toHexStr(target_key_str);
+          Debug("cache_seek", "Seek #%d @ %" PRId64" -> #%d @ %" PRId64":%s", cfi, doc_pos, target, seek_to, target_key_str);
+        }
+        goto Lread;
+      }
+    }
+    doc_pos = doc->prefix_len() + seek_to;
+    if (fragment) doc_pos -= static_cast<int64_t>(frags[fragment-1]);
+    vio.ndone = 0;
+    seek_to = 0;
+    ntodo = vio.ntodo();
+    bytes = doc->len - doc_pos;
+    if (is_debug_tag_set("cache_seek")) {
+      char target_key_str[33];
+      key.toHexStr(target_key_str);
+      Debug("cache_seek", "Read # %d @ %" PRId64"/%d for %" PRId64, fragment, doc_pos, doc->len, bytes);
+    }
+#endif
+  }
+  if (ntodo <= 0)
+    return EVENT_CONT;
+  if (vio.buffer.writer()->max_read_avail() > vio.buffer.writer()->water_mark && vio.ndone) // initiate read of first block
+    return EVENT_CONT;
+  if ((bytes <= 0) && vio.ntodo() >= 0)
+    goto Lread;
+  if (bytes > vio.ntodo())
+    bytes = vio.ntodo();
+  b = new_IOBufferBlock(buf, bytes, doc_pos);
+  b->_buf_end = b->_end;
+  vio.buffer.writer()->append_block(b);
+  vio.ndone += bytes;
+  doc_pos += bytes;
+  if (vio.ntodo() <= 0)
+    return calluser(VC_EVENT_READ_COMPLETE);
+  else {
+    if (calluser(VC_EVENT_READ_READY) == EVENT_DONE)
+      return EVENT_DONE;
+    // we have to keep reading until we give the user all the
+    // bytes it wanted or we hit the watermark.
+    if (vio.ntodo() > 0 && !vio.buffer.writer()->high_water())
+      goto Lread;
+    return EVENT_CONT;
+  }
+Lread: {
+    if (vio.ndone >= (int64_t)doc_len)
+      // reached the end of the document and the user still wants more
+      return calluser(VC_EVENT_EOS);
+    last_collision = 0;
+    writer_lock_retry = 0;
+    // if the state machine calls reenable on the callback from the cache,
+    // we set up a schedule_imm event. The openReadReadDone discards
+    // EVENT_IMMEDIATE events. So, we have to cancel that trigger and set
+    // a new EVENT_INTERVAL event.
+    cancel_trigger();
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock) {
+      SET_HANDLER(&CacheVC::openReadMain);
+      VC_SCHED_LOCK_RETRY();
+    }
+    if (dir_probe(&key, vol, &dir, &last_collision)) {
+      SET_HANDLER(&CacheVC::openReadReadDone);
+      int ret = do_read_call(&key);
+      if (ret == EVENT_RETURN)
+        goto Lcallreturn;
+      return EVENT_CONT;
+    } else if (write_vc) {
+      if (writer_done()) {
+        last_collision = NULL;
+        while (dir_probe(&earliest_key, vol, &dir, &last_collision)) {
+          if (dir_offset(&dir) == dir_offset(&earliest_dir)) {
+            DDebug("cache_read_agg", "%p: key: %X ReadMain complete: %d",
+                  this, first_key.word(1), (int)vio.ndone);
+            doc_len = vio.ndone;
+            goto Leos;
+          }
+        }
+        DDebug("cache_read_agg", "%p: key: %X ReadMain writer aborted: %d",
+              this, first_key.word(1), (int)vio.ndone);
+        goto Lerror;
+      }
+      DDebug("cache_read_agg", "%p: key: %X ReadMain retrying: %d", this, first_key.word(1), (int)vio.ndone);
+      SET_HANDLER(&CacheVC::openReadMain);
+      VC_SCHED_WRITER_RETRY();
+    }
+    if (is_action_tag_set("cache"))
+      ink_release_assert(false);
+    Warning("Document %X truncated at %d of %d, missing fragment %X", first_key.word(1), (int)vio.ndone, (int)doc_len, key.word(1));
+    // remove the directory entry
+    dir_delete(&earliest_key, vol, &earliest_dir);
+  }
+Lerror:
+  return calluser(VC_EVENT_ERROR);
+Leos:
+  return calluser(VC_EVENT_EOS);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0);
+}
+
+/*
+  This code follows CacheVC::openReadStartHead closely,
+  if you change this you might have to change that.
+*/
+int
+CacheVC::openReadStartEarliest(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  int ret = 0;
+  Doc *doc = NULL;
+  cancel_trigger();
+  set_io_not_in_progress();
+  if (_action.cancelled)
+    return free_CacheVC(this);
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_SCHED_LOCK_RETRY();
+    if (!buf)
+      goto Lread;
+    if (!io.ok())
+      goto Ldone;
+    // an object needs to be outside the aggregation window in order to be
+    // be evacuated as it is read
+    if (!dir_agg_valid(vol, &dir)) {
+      // a directory entry which is nolonger valid may have been overwritten
+      if (!dir_valid(vol, &dir))
+        last_collision = NULL;
+      goto Lread;
+    }
+    doc = (Doc *) buf->data();
+    if (doc->magic != DOC_MAGIC) {
+      char tmpstring[100];
+      if (is_action_tag_set("cache")) {
+        ink_release_assert(false);
+      }
+      if (doc->magic == DOC_CORRUPT)
+        Warning("Earliest: Doc checksum does not match for %s", key.string(tmpstring));
+      else
+        Warning("Earliest : Doc magic does not match for %s", key.string(tmpstring));
+      // remove the dir entry
+      dir_delete(&key, vol, &dir);
+      // try going through the directory entries again
+      // in case the dir entry we deleted doesnt correspond
+      // to the key we are looking for. This is possible
+      // because of directory collisions
+      last_collision = NULL;
+      goto Lread;
+    }
+    if (!(doc->key == key)) // collisiion
+      goto Lread;
+    // success
+    earliest_key = key;
+    doc_pos = doc->prefix_len();
+    next_CacheKey(&key, &doc->key);
+    vol->begin_read(this);
+    if (vol->within_hit_evacuate_window(&earliest_dir) &&
+        (!cache_config_hit_evacuate_size_limit || doc_len <= (uint64_t)cache_config_hit_evacuate_size_limit)
+#if TS_USE_INTERIM_CACHE == 1
+        && !dir_ininterim(&dir)
+#endif
+        ) {
+      DDebug("cache_hit_evac", "dir: %" PRId64", write: %" PRId64", phase: %d",
+            dir_offset(&earliest_dir), offset_to_vol_offset(vol, vol->header->write_pos), vol->header->phase);
+      f.hit_evacuate = 1;
+    }
+    goto Lsuccess;
+Lread:
+    if (dir_probe(&key, vol, &earliest_dir, &last_collision) ||
+        dir_lookaside_probe(&key, vol, &earliest_dir, NULL))
+    {
+      dir = earliest_dir;
+#if TS_USE_INTERIM_CACHE == 1
+      if (dir_ininterim(&dir) && alternate.get_frag_offset_count() > 1) {
+        dir_delete(&key, vol, &dir);
+        last_collision = NULL;
+        goto Lread;
+      }
+#endif
+      if ((ret = do_read_call(&key)) == EVENT_RETURN)
+        goto Lcallreturn;
+      return ret;
+    }
+    // read has detected that alternate does not exist in the cache.
+    // rewrite the vector.
+#ifdef HTTP_CACHE
+    if (!f.read_from_writer_called && frag_type == CACHE_FRAG_TYPE_HTTP) {
+      // don't want any writers while we are evacuating the vector
+      if (!vol->open_write(this, false, 1)) {
+        Doc *doc1 = (Doc *) first_buf->data();
+        uint32_t len = write_vector->get_handles(doc1->hdr(), doc1->hlen);
+        ink_assert(len == doc1->hlen && write_vector->count() > 0);
+        write_vector->remove(alternate_index, true);
+        // if the vector had one alternate, delete it's directory entry
+        if (len != doc1->hlen || !write_vector->count()) {
+          // sometimes the delete fails when there is a race and another read
+          // finds that the directory entry has been overwritten
+          // (cannot assert on the return value)
+          dir_delete(&first_key, vol, &first_dir);
+        }
+#if TS_USE_INTERIM_CACHE == 1
+        else if (dir_ininterim(&first_dir))
+          dir_delete(&first_key, vol, &first_dir);
+#endif
+        else {
+          buf = NULL;
+          last_collision = NULL;
+          write_len = 0;
+          header_len = write_vector->marshal_length();
+          f.evac_vector = 1;
+          f.use_first_key = 1;
+          key = first_key;
+          // always use od->first_dir to overwrite a directory.
+          // If an evacuation happens while a vector is being updated
+          // the evacuator changes the od->first_dir to the new directory
+          // that it inserted
+          od->first_dir = first_dir;
+          od->writing_vec = 1;
+          earliest_key = zero_key;
+
+          // set up this VC as a alternate delete write_vc
+          vio.op = VIO::WRITE;
+          total_len = 0;
+          f.update = 1;
+          alternate_index = CACHE_ALT_REMOVED;
+          /////////////////////////////////////////////////////////////////
+          // change to create a directory entry for a resident alternate //
+          // when another alternate does not exist.                      //
+          /////////////////////////////////////////////////////////////////
+          if (doc1->total_len > 0) {
+            od->move_resident_alt = 1;
+            od->single_doc_key = doc1->key;
+            dir_assign(&od->single_doc_dir, &dir);
+            dir_set_tag(&od->single_doc_dir, od->single_doc_key.word(2));
+          }
+          SET_HANDLER(&CacheVC::openReadVecWrite);
+          if ((ret = do_write_call()) == EVENT_RETURN)
+            goto Lcallreturn;
+          return ret;
+        }
+      }
+    }
+#endif
+    // open write failure - another writer, so don't modify the vector
+  Ldone:
+    if (od)
+      vol->close_write(this);
+  }
+  CACHE_INCREMENT_DYN_STAT(cache_read_failure_stat);
+  _action.continuation->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -ECACHE_NO_DOC);
+  return free_CacheVC(this);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0); // hopefully a tail call
+Lsuccess:
+  if (write_vc)
+    CACHE_INCREMENT_DYN_STAT(cache_read_busy_success_stat);
+  SET_HANDLER(&CacheVC::openReadMain);
+  return callcont(CACHE_EVENT_OPEN_READ);
+}
+
+// create the directory entry after the vector has been evacuated
+// the volume lock has been taken when this function is called
+#ifdef HTTP_CACHE
+int
+CacheVC::openReadVecWrite(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  set_io_not_in_progress();
+  ink_assert(od);
+  od->writing_vec = 0;
+  if (_action.cancelled)
+    return openWriteCloseDir(EVENT_IMMEDIATE, 0);
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_SCHED_LOCK_RETRY();
+    if (io.ok()) {
+      ink_assert(f.evac_vector);
+      ink_assert(frag_type == CACHE_FRAG_TYPE_HTTP);
+      ink_assert(!buf.m_ptr);
+      f.evac_vector = false;
+      last_collision = NULL;
+      f.update = 0;
+      alternate_index = CACHE_ALT_INDEX_DEFAULT;
+      f.use_first_key = 0;
+      vio.op = VIO::READ;
+      dir_overwrite(&first_key, vol, &dir, &od->first_dir);
+      if (od->move_resident_alt)
+        dir_insert(&od->single_doc_key, vol, &od->single_doc_dir);
+      int alt_ndx = HttpTransactCache::SelectFromAlternates(write_vector, &request, params);
+      vol->close_write(this);
+      if (alt_ndx >= 0) {
+        vector.clear();
+        // we don't need to start all over again, since we already
+        // have the vector in memory. But this is simpler and this
+        // case is rare.
+        goto Lrestart;
+      }
+    } else
+      vol->close_write(this);
+  }
+
+  CACHE_INCREMENT_DYN_STAT(cache_read_failure_stat);
+  _action.continuation->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -ECACHE_ALT_MISS);
+  return free_CacheVC(this);
+Lrestart:
+  SET_HANDLER(&CacheVC::openReadStartHead);
+  return openReadStartHead(EVENT_IMMEDIATE, 0);
+}
+#endif
+
+/*
+  This code follows CacheVC::openReadStartEarliest closely,
+  if you change this you might have to change that.
+*/
+int
+CacheVC::openReadStartHead(int event, Event * e)
+{
+  intptr_t err = ECACHE_NO_DOC;
+  Doc *doc = NULL;
+  cancel_trigger();
+  set_io_not_in_progress();
+  if (_action.cancelled)
+    return free_CacheVC(this);
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_SCHED_LOCK_RETRY();
+    if (!buf)
+      goto Lread;
+    if (!io.ok())
+      goto Ldone;
+    // an object needs to be outside the aggregation window in order to be
+    // be evacuated as it is read
+    if (!dir_agg_valid(vol, &dir)) {
+      // a directory entry which is nolonger valid may have been overwritten
+      if (!dir_valid(vol, &dir))
+        last_collision = NULL;
+#if TS_USE_INTERIM_CACHE == 1
+      if (dir_ininterim(&dir)) {
+        dir_delete(&key, vol, &dir);
+        last_collision = NULL;
+      }
+#endif
+      goto Lread;
+    }
+    doc = (Doc *) buf->data();
+    if (doc->magic != DOC_MAGIC) {
+      char tmpstring[100];
+      if (is_action_tag_set("cache")) {
+        ink_release_assert(false);
+      }
+      if (doc->magic == DOC_CORRUPT)
+        Warning("Head: Doc checksum does not match for %s", key.string(tmpstring));
+      else
+        Warning("Head : Doc magic does not match for %s", key.string(tmpstring));
+      // remove the dir entry
+      dir_delete(&key, vol, &dir);
+      // try going through the directory entries again
+      // in case the dir entry we deleted doesnt correspond
+      // to the key we are looking for. This is possible
+      // because of directory collisions
+      last_collision = NULL;
+      goto Lread;
+    }
+    if (!(doc->first_key == key))
+#if TS_USE_INTERIM_CACHE == 1
+    {
+      if (dir_ininterim(&dir)) {
+        dir_delete(&key, vol, &dir);
+        last_collision = NULL;
+      }
+      goto Lread;
+    }
+#else
+      goto Lread;
+#endif
+    if (f.lookup)
+      goto Lookup;
+    earliest_dir = dir;
+#ifdef HTTP_CACHE
+    CacheHTTPInfo *alternate_tmp;
+    if (frag_type == CACHE_FRAG_TYPE_HTTP) {
+      uint32_t uml;
+      ink_assert(doc->hlen);
+      if (!doc->hlen)
+        goto Ldone;
+      if ((uml = vector.get_handles(doc->hdr(), doc->hlen)) != doc->hlen) {
+        if (buf) {
+          HTTPCacheAlt* alt = reinterpret_cast<HTTPCacheAlt*>(doc->hdr());
+          int32_t alt_length = 0;
+          // count should be reasonable, as vector is initialized and unlikly to be too corrupted
+          // by bad disk data - count should be the number of successfully unmarshalled alts.
+          for ( int32_t i = 0 ; i < vector.count() ; ++i ) {
+            CacheHTTPInfo* info = vector.get(i);
+            if (info && info->m_alt) alt_length += info->m_alt->m_unmarshal_len;
+          }
+          Note("OpenReadHead failed for cachekey %X : vector inconsistency - "
+               "unmarshalled %d expecting %d in %d (base=%d, flen=%d) "
+               "- vector n=%d size=%d"
+               "first alt=%d[%s]"
+               , key.word(0)
+               , uml, doc->hlen, doc->len, sizeofDoc, doc->_flen
+               , vector.count(), alt_length
+               , alt->m_magic
+               , (CACHE_ALT_MAGIC_ALIVE == alt->m_magic ? "alive"
+                  : CACHE_ALT_MAGIC_MARSHALED == alt->m_magic ? "serial"
+                  : CACHE_ALT_MAGIC_DEAD == alt->m_magic ? "dead"
+                  : "bogus")
+            );
+          dir_delete(&key, vol, &dir);
+        }
+        err = ECACHE_BAD_META_DATA;
+        goto Ldone;
+      }
+      if (cache_config_select_alternate) {
+        alternate_index = HttpTransactCache::SelectFromAlternates(&vector, &request, params);
+        if (alternate_index < 0) {
+          err = ECACHE_ALT_MISS;
+          goto Ldone;
+        }
+      } else
+        alternate_index = 0;
+      alternate_tmp = vector.get(alternate_index);
+      if (!alternate_tmp->valid()) {
+        if (buf) {
+          Note("OpenReadHead failed for cachekey %X : alternate inconsistency", key.word(0));
+          dir_delete(&key, vol, &dir);
+        }
+        goto Ldone;
+      }
+
+      alternate.copy_shallow(alternate_tmp);
+      alternate.object_key_get(&key);
+      doc_len = alternate.object_size_get();
+      if (key == doc->key) {      // is this my data?
+        f.single_fragment = doc->single_fragment();
+        ink_assert(f.single_fragment);     // otherwise need to read earliest
+        ink_assert(doc->hlen);
+        doc_pos = doc->prefix_len();
+        next_CacheKey(&key, &doc->key);
+      } else {
+        f.single_fragment = false;
+      }
+    } else
+#endif
+    {
+      next_CacheKey(&key, &doc->key);
+      f.single_fragment = doc->single_fragment();
+      doc_pos = doc->prefix_len();
+      doc_len = doc->total_len;
+    }
+
+    if (is_debug_tag_set("cache_read")) { // amc debug
+      char xt[33],yt[33];
+      Debug("cache_read", "CacheReadStartHead - read %s target %s - %s %d of %" PRId64" bytes, %d fragments",
+            doc->key.toHexStr(xt), key.toHexStr(yt),
+            f.single_fragment ? "single" : "multi",
+            doc->len, doc->total_len,
+#ifdef HTTP_CACHE
+            alternate.get_frag_offset_count()
+#else
+            0
+#endif
+            );
+    }
+    // the first fragment might have been gc'ed. Make sure the first
+    // fragment is there before returning CACHE_EVENT_OPEN_READ
+    if (!f.single_fragment)
+      goto Learliest;
+
+    if (vol->within_hit_evacuate_window(&dir) &&
+        (!cache_config_hit_evacuate_size_limit || doc_len <= (uint64_t)cache_config_hit_evacuate_size_limit)
+#if TS_USE_INTERIM_CACHE == 1
+        && !f.read_from_interim
+#endif
+        ) {
+      DDebug("cache_hit_evac", "dir: %" PRId64", write: %" PRId64", phase: %d",
+            dir_offset(&dir), offset_to_vol_offset(vol, vol->header->write_pos), vol->header->phase);
+      f.hit_evacuate = 1;
+    }
+
+    first_buf = buf;
+    vol->begin_read(this);
+
+    goto Lsuccess;
+
+  Lread:
+    // check for collision
+    // INKqa07684 - Cache::lookup returns CACHE_EVENT_OPEN_READ_FAILED.
+    // don't want to go through this BS of reading from a writer if
+    // its a lookup. In this case lookup will fail while the document is
+    // being written to the cache.
+    OpenDirEntry *cod = vol->open_read(&key);
+    if (cod && !f.read_from_writer_called) {
+      if (f.lookup) {
+        err = ECACHE_DOC_BUSY;
+        goto Ldone;
+      }
+      od = cod;
+      MUTEX_RELEASE(lock);
+      SET_HANDLER(&CacheVC::openReadFromWriter);
+      return handleEvent(EVENT_IMMEDIATE, 0);
+    }
+    if (dir_probe(&key, vol, &dir, &last_collision)) {
+      first_dir = dir;
+      int ret = do_read_call(&key);
+      if (ret == EVENT_RETURN)
+        goto Lcallreturn;
+      return ret;
+    }
+  }
+Ldone:
+  if (!f.lookup) {
+    CACHE_INCREMENT_DYN_STAT(cache_read_failure_stat);
+    _action.continuation->handleEvent(CACHE_EVENT_OPEN_READ_FAILED, (void *) -err);
+  } else {
+    CACHE_INCREMENT_DYN_STAT(cache_lookup_failure_stat);
+    _action.continuation->handleEvent(CACHE_EVENT_LOOKUP_FAILED, (void *) -err);
+  }
+  return free_CacheVC(this);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0); // hopefully a tail call
+Lsuccess:
+  SET_HANDLER(&CacheVC::openReadMain);
+  return callcont(CACHE_EVENT_OPEN_READ);
+Lookup:
+  CACHE_INCREMENT_DYN_STAT(cache_lookup_success_stat);
+  _action.continuation->handleEvent(CACHE_EVENT_LOOKUP, 0);
+  return free_CacheVC(this);
+Learliest:
+  first_buf = buf;
+  buf = NULL;
+  earliest_key = key;
+  last_collision = NULL;
+  SET_HANDLER(&CacheVC::openReadStartEarliest);
+  return openReadStartEarliest(event, e);
+}
diff --git a/iocore/cache/CacheTest.cc b/iocore/cache/CacheTest.cc
new file mode 100644
index 00000000..3c601ca0
--- /dev/null
+++ b/iocore/cache/CacheTest.cc
@@ -0,0 +1,489 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#include "P_Cache.h"
+#include "P_CacheTest.h"
+#include "api/ts/ts.h"
+
+CacheTestSM::CacheTestSM(RegressionTest *t) :
+  RegressionSM(t),
+  timeout(0),
+  cache_action(0),
+  start_time(0),
+  cache_vc(0),
+  cvio(0),
+  buffer(0),
+  buffer_reader(0),
+  nbytes(-1),
+  repeat_count(0),
+  expect_event(EVENT_NONE),
+  expect_initial_event(EVENT_NONE),
+  initial_event(EVENT_NONE),
+  content_salt(0)
+{
+  SET_HANDLER(&CacheTestSM::event_handler);
+}
+
+CacheTestSM::~CacheTestSM() {
+  ink_assert(!cache_action);
+  ink_assert(!cache_vc);
+  if (buffer_reader)
+    buffer->dealloc_reader(buffer_reader);
+  if (buffer)
+    free_MIOBuffer(buffer);
+}
+
+int CacheTestSM::open_read_callout() {
+  cvio = cache_vc->do_io_read(this, nbytes, buffer);
+  return 1;
+}
+
+int CacheTestSM::open_write_callout() {
+  cvio = cache_vc->do_io_write(this, nbytes, buffer_reader);
+  return 1;
+}
+
+int CacheTestSM::event_handler(int event, void *data) {
+
+  switch (event) {
+
+    case EVENT_INTERVAL:
+    case EVENT_IMMEDIATE:
+      cancel_timeout();
+      if (cache_action) {
+        cache_action->cancel();
+        cache_action = 0;
+      }
+      if (cache_vc) {
+        cache_vc->do_io_close();
+        cache_vc = 0;
+      }
+      cvio = 0;
+      make_request();
+      return EVENT_DONE;
+
+    case CACHE_EVENT_LOOKUP_FAILED:
+    case CACHE_EVENT_LOOKUP:
+      goto Lcancel_next;
+
+    case CACHE_EVENT_OPEN_READ:
+      initial_event = event;
+      cancel_timeout();
+      cache_action = 0;
+      cache_vc = (CacheVConnection*)data;
+      buffer = new_empty_MIOBuffer();
+      buffer_reader = buffer->alloc_reader();
+      if (open_read_callout() < 0)
+        goto Lclose_error_next;
+      else
+        return EVENT_DONE;
+
+    case CACHE_EVENT_OPEN_READ_FAILED:
+      goto Lcancel_next;
+
+    case VC_EVENT_READ_READY:
+      if (!check_buffer())
+        goto Lclose_error_next;
+      buffer_reader->consume(buffer_reader->read_avail());
+      ((VIO*)data)->reenable();
+      return EVENT_CONT;
+
+    case VC_EVENT_READ_COMPLETE:
+      if (!check_buffer())
+        goto Lclose_error_next;
+      goto Lclose_next;
+
+    case VC_EVENT_ERROR:
+    case VC_EVENT_EOS:
+      goto Lclose_error_next;
+
+    case CACHE_EVENT_OPEN_WRITE:
+      initial_event = event;
+      cancel_timeout();
+      cache_action = 0;
+      cache_vc = (CacheVConnection*)data;
+      buffer = new_empty_MIOBuffer();
+      buffer_reader = buffer->alloc_reader();
+      if (open_write_callout() < 0)
+        goto Lclose_error_next;
+      else
+        return EVENT_DONE;
+
+    case CACHE_EVENT_OPEN_WRITE_FAILED:
+      goto Lcancel_next;
+
+    case VC_EVENT_WRITE_READY:
+      fill_buffer();
+      cvio->reenable();
+      return EVENT_CONT;
+
+    case VC_EVENT_WRITE_COMPLETE:
+      if (nbytes != cvio->ndone)
+        goto Lclose_error_next;
+      goto Lclose_next;
+
+    case CACHE_EVENT_REMOVE:
+    case CACHE_EVENT_REMOVE_FAILED:
+      goto Lcancel_next;
+
+    case CACHE_EVENT_SCAN:
+      initial_event = event;
+      cache_vc = (CacheVConnection*)data;
+      return EVENT_CONT;
+
+    case CACHE_EVENT_SCAN_OBJECT:
+      return CACHE_SCAN_RESULT_CONTINUE;
+
+    case CACHE_EVENT_SCAN_OPERATION_FAILED:
+      return CACHE_SCAN_RESULT_CONTINUE;
+
+    case CACHE_EVENT_SCAN_OPERATION_BLOCKED:
+      return CACHE_SCAN_RESULT_CONTINUE;
+
+    case CACHE_EVENT_SCAN_DONE:
+      return EVENT_CONT;
+
+    case CACHE_EVENT_SCAN_FAILED:
+      return EVENT_CONT;
+
+    case AIO_EVENT_DONE:
+      goto Lnext;
+
+    default:
+      ink_assert(!"case");
+      break;
+  }
+  return EVENT_DONE;
+
+Lcancel_next:
+  cancel_timeout();
+  cache_action = 0;
+  goto Lnext;
+Lclose_error_next:
+  cache_vc->do_io_close(1);
+  goto Lclose_next_internal;
+Lclose_next:
+  cache_vc->do_io_close();
+Lclose_next_internal:
+  cache_vc = 0;
+  if (buffer_reader) {
+    buffer->dealloc_reader(buffer_reader);
+    buffer_reader = 0;
+  }
+  if (buffer) {
+    free_MIOBuffer(buffer);
+    buffer = 0;
+  }
+Lnext:
+  if (check_result(event) && repeat_count) {
+    repeat_count--;
+    timeout = eventProcessor.schedule_imm(this);
+    return EVENT_DONE;
+  } else
+    return complete(event);
+}
+
+void CacheTestSM::fill_buffer() {
+  int64_t avail = buffer->write_avail();
+  CacheKey k = key;
+  k.b[1] += content_salt;
+  int64_t sk = (int64_t)sizeof(key);
+  while (avail > 0) {
+    int64_t l = avail;
+    if (l > sk)
+      l = sk;
+
+    int64_t pos = cvio->ndone +  buffer_reader->read_avail();
+    int64_t o = pos % sk;
+
+    if (l > sk - o)
+      l = sk - o;
+    k.b[0] = pos / sk;
+    char *x = ((char*)&k) + o;
+    buffer->write(x, l);
+    buffer->fill(l);
+    avail -= l;
+  }
+}
+
+int CacheTestSM::check_buffer() {
+  int64_t avail = buffer_reader->read_avail();
+  CacheKey k = key;
+  k.b[1] += content_salt;
+  char b[sizeof(key)];
+  int64_t sk = (int64_t)sizeof(key);
+  int64_t pos = cvio->ndone -  buffer_reader->read_avail();
+  while (avail > 0) {
+    int64_t l = avail;
+    if (l > sk)
+      l = sk;
+    int64_t o = pos % sk;
+    if (l > sk - o)
+      l = sk - o;
+    k.b[0] = pos / sk;
+    char *x = ((char*)&k) + o;
+    buffer_reader->read(&b[0], l);
+    if (::memcmp(b, x, l))
+      return 0;
+    buffer_reader->consume(l);
+    pos += l;
+    avail -= l;
+  }
+  return 1;
+}
+
+int CacheTestSM::check_result(int event) {
+  return
+    initial_event == expect_initial_event &&
+    event == expect_event;
+}
+
+int CacheTestSM::complete(int event) {
+  if (!check_result(event))
+    done(REGRESSION_TEST_FAILED);
+  else
+    done(REGRESSION_TEST_PASSED);
+  delete this;
+  return EVENT_DONE;
+}
+
+CacheTestSM::CacheTestSM(const CacheTestSM &ao) : RegressionSM(ao) {
+  int o = (int)(((char*)&start_memcpy_on_clone) - ((char*)this));
+  int s = (int)(((char*)&end_memcpy_on_clone) - ((char*)&start_memcpy_on_clone));
+  memcpy(((char*)this)+o, ((char*)&ao)+o, s);
+  SET_HANDLER(&CacheTestSM::event_handler);
+}
+
+EXCLUSIVE_REGRESSION_TEST(cache)(RegressionTest *t, int /* atype ATS_UNUSED */, int *pstatus) {
+  if (cacheProcessor.IsCacheEnabled() != CACHE_INITIALIZED) {
+    rprintf(t, "cache not initialized");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  EThread *thread = this_ethread();
+
+  CACHE_SM(t, write_test, { cacheProcessor.open_write(
+        this, &key, false, CACHE_FRAG_TYPE_NONE, 100,
+        CACHE_WRITE_OPT_SYNC); } );
+  write_test.expect_initial_event = CACHE_EVENT_OPEN_WRITE;
+  write_test.expect_event = VC_EVENT_WRITE_COMPLETE;
+  write_test.nbytes = 100;
+  rand_CacheKey(&write_test.key, thread->mutex);
+
+  CACHE_SM(t, lookup_test, { cacheProcessor.lookup(this, &key, false); } );
+  lookup_test.expect_event = CACHE_EVENT_LOOKUP;
+  lookup_test.key = write_test.key;
+
+  CACHE_SM(t, read_test, { cacheProcessor.open_read(this, &key, false); } );
+  read_test.expect_initial_event = CACHE_EVENT_OPEN_READ;
+  read_test.expect_event = VC_EVENT_READ_COMPLETE;
+  read_test.nbytes = 100;
+  read_test.key = write_test.key;
+
+  CACHE_SM(t, remove_test, { cacheProcessor.remove(this, &key, false); } );
+  remove_test.expect_event = CACHE_EVENT_REMOVE;
+  remove_test.key = write_test.key;
+
+  CACHE_SM(t, lookup_fail_test, { cacheProcessor.lookup(this, &key, false); } );
+  lookup_fail_test.expect_event = CACHE_EVENT_LOOKUP_FAILED;
+  lookup_fail_test.key = write_test.key;
+
+  CACHE_SM(t, read_fail_test, { cacheProcessor.open_read(this, &key, false); } );
+  read_fail_test.expect_event = CACHE_EVENT_OPEN_READ_FAILED;
+  read_fail_test.key = write_test.key;
+
+  CACHE_SM(t, remove_fail_test, { cacheProcessor.remove(this, &key, false); } );
+  remove_fail_test.expect_event = CACHE_EVENT_REMOVE_FAILED;
+  rand_CacheKey(&remove_fail_test.key, thread->mutex);
+
+  CACHE_SM(t, replace_write_test, {
+      cacheProcessor.open_write(this, &key, false, CACHE_FRAG_TYPE_NONE, 100,
+                                CACHE_WRITE_OPT_SYNC);
+    }
+    int open_write_callout() {
+      header.serial = 10;
+      cache_vc->set_header(&header, sizeof(header));
+      cvio = cache_vc->do_io_write(this, nbytes, buffer_reader);
+      return 1;
+    });
+  replace_write_test.expect_initial_event = CACHE_EVENT_OPEN_WRITE;
+  replace_write_test.expect_event = VC_EVENT_WRITE_COMPLETE;
+  replace_write_test.nbytes = 100;
+  rand_CacheKey(&replace_write_test.key, thread->mutex);
+
+  CACHE_SM(t, replace_test, {
+      cacheProcessor.open_write(this, &key, false, CACHE_FRAG_TYPE_NONE, 100,
+                                CACHE_WRITE_OPT_OVERWRITE_SYNC);
+    }
+    int open_write_callout() {
+      CacheTestHeader *h = 0;
+      int hlen = 0;
+      if (cache_vc->get_header((void**)&h, &hlen) < 0)
+        return -1;
+      if (h->serial != 10)
+        return -1;
+      header.serial = 11;
+      cache_vc->set_header(&header, sizeof(header));
+      cvio = cache_vc->do_io_write(this, nbytes, buffer_reader);
+      return 1;
+    });
+  replace_test.expect_initial_event = CACHE_EVENT_OPEN_WRITE;
+  replace_test.expect_event = VC_EVENT_WRITE_COMPLETE;
+  replace_test.nbytes = 100;
+  replace_test.key = replace_write_test.key;
+  replace_test.content_salt = 1;
+
+  CACHE_SM(t, replace_read_test, {
+      cacheProcessor.open_read(this, &key, false);
+    }
+    int open_read_callout() {
+      CacheTestHeader *h = 0;
+      int hlen = 0;
+      if (cache_vc->get_header((void**)&h, &hlen) < 0)
+        return -1;
+      if (h->serial != 11)
+        return -1;
+      cvio = cache_vc->do_io_read(this, nbytes, buffer);
+      return 1;
+    });
+  replace_read_test.expect_initial_event = CACHE_EVENT_OPEN_READ;
+  replace_read_test.expect_event = VC_EVENT_READ_COMPLETE;
+  replace_read_test.nbytes = 100;
+  replace_read_test.key = replace_test.key;
+  replace_read_test.content_salt = 1;
+
+  CACHE_SM(t, large_write_test, { cacheProcessor.open_write(
+        this, &key, false, CACHE_FRAG_TYPE_NONE, 100,
+        CACHE_WRITE_OPT_SYNC); } );
+  large_write_test.expect_initial_event = CACHE_EVENT_OPEN_WRITE;
+  large_write_test.expect_event = VC_EVENT_WRITE_COMPLETE;
+  large_write_test.nbytes = 10000000;
+  rand_CacheKey(&large_write_test.key, thread->mutex);
+
+  CACHE_SM(t, pread_test, { 
+      cacheProcessor.open_read(this, &key, false); 
+    } 
+    int open_read_callout() {
+      cvio = cache_vc->do_io_pread(this, nbytes, buffer, 7000000);
+      return 1;
+    });
+  pread_test.expect_initial_event = CACHE_EVENT_OPEN_READ;
+  pread_test.expect_event = VC_EVENT_READ_COMPLETE;
+  pread_test.nbytes = 100;
+  pread_test.key = large_write_test.key;
+
+  r_sequential(
+    t,
+    write_test.clone(),
+    lookup_test.clone(),
+    r_sequential(t, 10, read_test.clone()),
+    remove_test.clone(),
+    lookup_fail_test.clone(),
+    read_fail_test.clone(),
+    remove_fail_test.clone(),
+    replace_write_test.clone(),
+    replace_test.clone(),
+    replace_read_test.clone(),
+    large_write_test.clone(),
+    pread_test.clone(),
+    NULL_PTR
+    )->run(pstatus);
+  return;
+}
+
+void force_link_CacheTest() {
+}
+
+// run -R 3 -r cache_disk_replacement_stability
+
+REGRESSION_TEST(cache_disk_replacement_stability)(RegressionTest *t, int level, int *pstatus) {
+  static int const MAX_VOLS = 26; // maximum values used in any test.
+  static uint64_t DEFAULT_SKIP = 8192;
+  static uint64_t DEFAULT_STRIPE_SIZE = 1024ULL * 1024 * 1024 * 911; // 911G
+  CacheDisk disk; // Only need one because it's just checked for failure.
+  CacheHostRecord hr1, hr2;
+  Vol* sample;
+  static int const sample_idx = 16;
+  Vol vols[MAX_VOLS];
+  Vol* vol_ptrs[MAX_VOLS]; // array of pointers.
+  char buff[2048];
+
+  // Only run at the highest levels.
+  if (REGRESSION_TEST_EXTENDED > level) {
+    *pstatus = REGRESSION_TEST_PASSED;
+    return;
+  }
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  disk.num_errors = 0;
+
+  for ( int i = 0 ; i < MAX_VOLS ; ++i ) {
+    vol_ptrs[i] = vols + i;
+    vols[i].disk = &disk;
+    vols[i].len = DEFAULT_STRIPE_SIZE;
+    snprintf(buff, sizeof(buff), "/dev/sd%c %" PRIu64 ":%" PRIu64,
+             'a' + i, DEFAULT_SKIP, vols[i].len);
+    vols[i].hash_id_md5.encodeBuffer(buff, strlen(buff));
+  }
+
+  hr1.vol_hash_table = 0;
+  hr1.vols = vol_ptrs;
+  hr1.num_vols = MAX_VOLS;
+  build_vol_hash_table(&hr1);
+
+  hr2.vol_hash_table = 0;
+  hr2.vols = vol_ptrs;
+  hr2.num_vols = MAX_VOLS;
+
+  sample = vols + sample_idx;
+  sample->len = 1024ULL * 1024 * 1024 * (1024+128); // 1.1 TB
+  snprintf(buff, sizeof(buff), "/dev/sd%c %" PRIu64 ":%" PRIu64,
+           'a' + sample_idx, DEFAULT_SKIP, sample->len);
+  sample->hash_id_md5.encodeBuffer(buff, strlen(buff));
+  build_vol_hash_table(&hr2);
+
+  // See what the difference is
+  int to = 0, from = 0;
+  int then = 0, now = 0;
+  for ( int i = 0 ; i < VOL_HASH_TABLE_SIZE ; ++i ) {
+    if (hr1.vol_hash_table[i] == sample_idx) ++then;
+    if (hr2.vol_hash_table[i] == sample_idx) ++now;
+    if (hr1.vol_hash_table[i] != hr2.vol_hash_table[i]) {
+      if (hr1.vol_hash_table[i] == sample_idx)
+        ++from;
+      else
+        ++to;
+    }
+  }
+  rprintf(t, "Cache stability difference - "
+          "delta = %d of %d : %d to, %d from, originally %d slots, now %d slots (net gain = %d/%d)\n"
+          , to+from, VOL_HASH_TABLE_SIZE, to, from, then, now, now-then, to-from
+    );
+  *pstatus = REGRESSION_TEST_PASSED;
+
+  hr1.vols = 0;
+  hr2.vols = 0;
+}
diff --git a/iocore/cache/CacheVol.cc b/iocore/cache/CacheVol.cc
new file mode 100644
index 00000000..9fb690c3
--- /dev/null
+++ b/iocore/cache/CacheVol.cc
@@ -0,0 +1,496 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#include "P_Cache.h"
+
+#define SCAN_BUF_SIZE      RECOVERY_SIZE
+#define SCAN_WRITER_LOCK_MAX_RETRY 5
+
+Action *
+Cache::scan(Continuation * cont, char *hostname, int host_len, int KB_per_second)
+{
+  Debug("cache_scan_truss", "inside scan");
+  if (!CacheProcessor::IsCacheReady(CACHE_FRAG_TYPE_HTTP)) {
+    cont->handleEvent(CACHE_EVENT_SCAN_FAILED, 0);
+    return ACTION_RESULT_DONE;
+  }
+
+  CacheVC *c = new_CacheVC(cont);
+  c->vol = NULL;
+  /* do we need to make a copy */
+  c->hostname = hostname;
+  c->host_len = host_len;
+  c->base_stat = cache_scan_active_stat;
+  c->buf = new_IOBufferData(BUFFER_SIZE_FOR_XMALLOC(SCAN_BUF_SIZE), MEMALIGNED);
+  c->scan_msec_delay = (SCAN_BUF_SIZE / KB_per_second);
+  c->offset = 0;
+  SET_CONTINUATION_HANDLER(c, &CacheVC::scanVol);
+  eventProcessor.schedule_in(c, HRTIME_MSECONDS(c->scan_msec_delay));
+  cont->handleEvent(CACHE_EVENT_SCAN, c);
+  return &c->_action;
+}
+
+int
+CacheVC::scanVol(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Debug("cache_scan_truss", "inside %p:scanVol", this);
+  if (_action.cancelled)
+    return free_CacheVC(this);
+  CacheHostRecord *rec = &theCache->hosttable->gen_host_rec;
+  if (host_len) {
+    CacheHostResult res;
+    theCache->hosttable->Match(hostname, host_len, &res);
+    if (res.record)
+      rec = res.record;
+  }
+  if (!vol) {
+    if (!rec->num_vols)
+      goto Ldone;
+    vol = rec->vols[0];
+  } else {
+    for (int i = 0; i < rec->num_vols - 1; i++)
+      if (vol == rec->vols[i]) {
+        vol = rec->vols[i + 1];
+        goto Lcont;
+      }
+    goto Ldone;
+  }
+Lcont:
+  fragment = 0;
+  SET_HANDLER(&CacheVC::scanObject);
+  eventProcessor.schedule_in(this, HRTIME_MSECONDS(scan_msec_delay));
+  return EVENT_CONT;
+Ldone:
+  _action.continuation->handleEvent(CACHE_EVENT_SCAN_DONE, NULL);
+  return free_CacheVC(this);
+}
+
+/* Next block with some data in it in this partition.  Returns end of partition if no more
+ * locations.
+ *
+ * d - Vol
+ * vol_map - precalculated map
+ * offset - offset to start looking at (and data at this location has not been read yet). */
+static off_t next_in_map(Vol *d, char *vol_map, off_t offset)
+{
+  off_t start_offset = vol_offset_to_offset(d, 0);
+  off_t new_off = (offset - start_offset);
+  off_t vol_len = vol_relative_length(d, start_offset);
+
+  while (new_off < vol_len && !vol_map[new_off / SCAN_BUF_SIZE]) new_off += SCAN_BUF_SIZE;
+  if (new_off >= vol_len) return vol_len + start_offset;
+  return new_off + start_offset;
+}
+
+// Function in CacheDir.cc that we need for make_vol_map().
+int
+dir_bucket_loop_fix(Dir *start_dir, int s, Vol *d);
+
+// TODO: If we used a bit vector, we could make a smaller map structure.
+// TODO: If we saved a high water mark we could have a smaller buf, and avoid searching it
+// when we are asked about the highest interesting offset.
+/* Make map of what blocks in partition are used.
+ *
+ * d - Vol to make a map of. */
+static char *make_vol_map(Vol *d)
+{
+  // Map will be one byte for each SCAN_BUF_SIZE bytes.
+  off_t start_offset = vol_offset_to_offset(d, 0);
+  off_t vol_len = vol_relative_length(d, start_offset);
+  size_t map_len = (vol_len + (SCAN_BUF_SIZE - 1)) / SCAN_BUF_SIZE;
+  char *vol_map = (char *)ats_malloc(map_len);
+
+  memset(vol_map, 0, map_len);
+
+  // Scan directories.
+  // Copied from dir_entries_used() and modified to fill in the map instead.
+  for (int s = 0; s < d->segments; s++) {
+    Dir *seg = dir_segment(s, d);
+    for (int b = 0; b < d->buckets; b++) {
+      Dir *e = dir_bucket(b, seg);
+      if (dir_bucket_loop_fix(e, s, d)) {
+        break;
+      }
+      while (e) {
+        if (dir_offset(e)) {
+            off_t offset = vol_offset(d, e) - start_offset;
+            if (offset <= vol_len) vol_map[offset / SCAN_BUF_SIZE] = 1;
+        }
+        e = next_dir(e, seg);
+        if (!e)
+          break;
+      }
+    }
+  }
+  return vol_map;
+}
+
+int
+CacheVC::scanObject(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Debug("cache_scan_truss", "inside %p:scanObject", this);
+
+  Doc *doc = NULL;
+  void *result = NULL;
+#ifdef HTTP_CACHE
+  int hlen = 0;
+  char hname[500];
+  bool hostinfo_copied = false;
+#endif
+  off_t next_object_len = 0;
+  bool might_need_overlap_read = false;
+
+  cancel_trigger();
+  set_io_not_in_progress();
+  if (_action.cancelled)
+    return free_CacheVC(this);
+
+  CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+  if (!lock) {
+    Debug("cache_scan_truss", "delay %p:scanObject", this);
+    mutex->thread_holding->schedule_in_local(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+    return EVENT_CONT;
+  }
+
+  if (!fragment) {               // initialize for first read
+    fragment = 1;
+    scan_vol_map = make_vol_map(vol);
+    io.aiocb.aio_offset = next_in_map(vol, scan_vol_map, vol_offset_to_offset(vol, 0));
+    if (io.aiocb.aio_offset >= (off_t)(vol->skip + vol->len))
+      goto Ldone;
+    io.aiocb.aio_nbytes = SCAN_BUF_SIZE;
+    io.aiocb.aio_buf = buf->data();
+    io.action = this;
+    io.thread = AIO_CALLBACK_THREAD_ANY;
+    Debug("cache_scan_truss", "read %p:scanObject", this);
+    goto Lread;
+  }
+
+  if ((size_t)io.aio_result != (size_t) io.aiocb.aio_nbytes) {
+    result = (void *) -ECACHE_READ_FAIL;
+    goto Ldone;
+  }
+
+  doc = (Doc *) (buf->data() + offset);
+  // If there is data in the buffer before the start that is from a partial object read previously
+  // Fix things as if we read it this time.
+  if (scan_fix_buffer_offset) {
+    io.aio_result += scan_fix_buffer_offset;
+    io.aiocb.aio_nbytes += scan_fix_buffer_offset;
+    io.aiocb.aio_offset -= scan_fix_buffer_offset;
+    io.aiocb.aio_buf = (char *)io.aiocb.aio_buf - scan_fix_buffer_offset;
+    scan_fix_buffer_offset = 0;
+  }
+  while ((off_t)((char *) doc - buf->data()) + next_object_len < (off_t)io.aiocb.aio_nbytes) {
+    might_need_overlap_read = false;
+    doc = (Doc *) ((char *) doc + next_object_len);
+    next_object_len = vol->round_to_approx_size(doc->len);
+#ifdef HTTP_CACHE
+    int i;
+    bool changed;
+
+    if (doc->magic != DOC_MAGIC) {
+      next_object_len = CACHE_BLOCK_SIZE;
+      Debug("cache_scan_truss", "blockskip %p:scanObject", this);
+      continue;
+    }
+      
+    if (doc->ftype != CACHE_FRAG_TYPE_HTTP || !doc->hlen)
+      goto Lskip;
+
+    last_collision = NULL;
+    while (1) {
+      if (!dir_probe(&doc->first_key, vol, &dir, &last_collision))
+        goto Lskip;
+      if (!dir_agg_valid(vol, &dir) || !dir_head(&dir) ||
+          (vol_offset(vol, &dir) != io.aiocb.aio_offset + ((char *) doc - buf->data())))
+        continue;
+      break;
+    }
+    if (doc->data() - buf->data() > (int) io.aiocb.aio_nbytes) {
+      might_need_overlap_read = true;
+      goto Lskip;
+    }
+    {
+      char *tmp = doc->hdr();
+      int len = doc->hlen;
+      while (len > 0) {
+        int r = HTTPInfo::unmarshal(tmp, len, buf._ptr());
+        if (r < 0) {
+          ink_assert(!"CacheVC::scanObject unmarshal failed");
+          goto Lskip;
+        }
+        len -= r;
+        tmp += r;
+      }
+    }
+    if (vector.get_handles(doc->hdr(), doc->hlen) != doc->hlen)
+      goto Lskip;
+    changed = false;
+    hostinfo_copied = 0;
+    for (i = 0; i < vector.count(); i++) {
+      if (!vector.get(i)->valid())
+        goto Lskip;
+      if (!hostinfo_copied) {
+        memccpy(hname, vector.get(i)->request_get()->host_get(&hlen), 0, 500);
+        hname[hlen] = 0;
+        Debug("cache_scan", "hostname = '%s', hostlen = %d", hname, hlen);
+        hostinfo_copied = 1;
+      }
+      vector.get(i)->object_key_get(&key);
+      alternate_index = i;
+      // verify that the earliest block exists, reducing 'false hit' callbacks
+      if (!(key == doc->key)) {
+        last_collision = NULL;
+        if (!dir_probe(&key, vol, &earliest_dir, &last_collision))
+          continue;
+      }
+      earliest_key = key;
+      int result1 = _action.continuation->handleEvent(CACHE_EVENT_SCAN_OBJECT, vector.get(i));
+      switch (result1) {
+      case CACHE_SCAN_RESULT_CONTINUE:
+        continue;
+      case CACHE_SCAN_RESULT_DELETE:
+        changed = true;
+        vector.remove(i, true);
+        i--;
+        continue;
+      case CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES:
+        changed = true;
+        vector.clear();
+        i = 0;
+        break;
+      case CACHE_SCAN_RESULT_UPDATE:
+        ink_assert(alternate_index >= 0);
+        vector.insert(&alternate, alternate_index);
+        if (!vector.get(alternate_index)->valid())
+          continue;
+        changed = true;
+        continue;
+      case EVENT_DONE:
+        goto Lcancel;
+      default:
+        ink_assert(!"unexpected CACHE_SCAN_RESULT");
+        continue;
+      }
+    }
+    if (changed) {
+      if (!vector.count()) {
+        ink_assert(hostinfo_copied);
+        SET_HANDLER(&CacheVC::scanRemoveDone);
+        // force remove even if there is a writer
+        cacheProcessor.remove(this, &doc->first_key, true, CACHE_FRAG_TYPE_HTTP, true, false, (char *) hname, hlen);
+        return EVENT_CONT;
+      } else {
+        offset = (char *) doc - buf->data();
+        write_len = 0;
+        frag_type = CACHE_FRAG_TYPE_HTTP;
+        f.use_first_key = 1;
+        f.evac_vector = 1;
+        first_key = key = doc->first_key;
+        alternate_index = CACHE_ALT_REMOVED;
+        earliest_key = zero_key;
+        writer_lock_retry = 0;
+        SET_HANDLER(&CacheVC::scanOpenWrite);
+        return scanOpenWrite(EVENT_NONE, 0);
+      }
+    }
+    continue;
+  Lskip:;
+#endif
+  }
+#ifdef HTTP_CACHE
+  vector.clear();
+#endif
+    // If we had an object that went past the end of the buffer, and it is small enough to fix,
+    // fix it.
+  if (might_need_overlap_read &&
+      ((off_t)((char *) doc - buf->data()) + next_object_len > (off_t)io.aiocb.aio_nbytes) &&
+      next_object_len > 0) {
+    off_t partial_object_len = io.aiocb.aio_nbytes - ((char *)doc - buf->data());
+    // Copy partial object to beginning of the buffer.
+    memmove(buf->data(), (char *)doc, partial_object_len);
+    io.aiocb.aio_offset += io.aiocb.aio_nbytes;
+    io.aiocb.aio_nbytes = SCAN_BUF_SIZE - partial_object_len;
+    io.aiocb.aio_buf = buf->data() + partial_object_len;
+    scan_fix_buffer_offset = partial_object_len;
+  } else { // Normal case, where we ended on a object boundary.
+    io.aiocb.aio_offset += ((char *)doc - buf->data()) + next_object_len;
+    Debug("cache_scan_truss", "next %p:scanObject %" PRId64, this, (int64_t)io.aiocb.aio_offset);
+    io.aiocb.aio_offset = next_in_map(vol, scan_vol_map, io.aiocb.aio_offset);
+    Debug("cache_scan_truss", "next_in_map %p:scanObject %" PRId64, this, (int64_t)io.aiocb.aio_offset);
+    io.aiocb.aio_nbytes = SCAN_BUF_SIZE;
+    io.aiocb.aio_buf = buf->data();
+    scan_fix_buffer_offset = 0;
+  }
+
+  if (io.aiocb.aio_offset >= vol->skip + vol->len) {
+    SET_HANDLER(&CacheVC::scanVol);
+    eventProcessor.schedule_in(this, HRTIME_MSECONDS(scan_msec_delay));
+    return EVENT_CONT;
+  }
+
+Lread:
+  io.aiocb.aio_fildes = vol->fd;
+  if ((off_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) > (off_t)(vol->skip + vol->len))
+    io.aiocb.aio_nbytes = vol->skip + vol->len - io.aiocb.aio_offset;
+  offset = 0;
+  ink_assert(ink_aio_read(&io) >= 0);
+  Debug("cache_scan_truss", "read %p:scanObject %" PRId64 " %zu", this,
+        (int64_t)io.aiocb.aio_offset, (size_t)io.aiocb.aio_nbytes);
+  return EVENT_CONT;
+
+Ldone:
+   Debug("cache_scan_truss", "done %p:scanObject", this);
+  _action.continuation->handleEvent(CACHE_EVENT_SCAN_DONE, result);
+#ifdef HTTP_CACHE
+Lcancel:
+#endif
+  return free_CacheVC(this);
+}
+
+int
+CacheVC::scanRemoveDone(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Debug("cache_scan_truss", "inside %p:scanRemoveDone", this);
+  Debug("cache_scan", "remove done.");
+#ifdef HTTP_CACHE
+  alternate.destroy();
+#endif
+  SET_HANDLER(&CacheVC::scanObject);
+  return handleEvent(EVENT_IMMEDIATE, 0);
+}
+
+int
+CacheVC::scanOpenWrite(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Debug("cache_scan_truss", "inside %p:scanOpenWrite", this);
+  cancel_trigger();
+  // get volume lock
+  if (writer_lock_retry > SCAN_WRITER_LOCK_MAX_RETRY) {
+    int r = _action.continuation->handleEvent(CACHE_EVENT_SCAN_OPERATION_BLOCKED, 0);
+    Debug("cache_scan", "still havent got the writer lock, asking user..");
+    switch (r) {
+    case CACHE_SCAN_RESULT_RETRY:
+      writer_lock_retry = 0;
+      break;
+    case CACHE_SCAN_RESULT_CONTINUE:
+      SET_HANDLER(&CacheVC::scanObject);
+      return scanObject(EVENT_IMMEDIATE, 0);
+    }
+  }
+  int ret = 0;
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock) {
+      Debug("cache_scan", "vol->mutex %p:scanOpenWrite", this);
+      VC_SCHED_LOCK_RETRY();
+    }
+
+    Debug("cache_scan", "trying for writer lock");
+    if (vol->open_write(this, false, 1)) {
+      writer_lock_retry++;
+      SET_HANDLER(&CacheVC::scanOpenWrite);
+      mutex->thread_holding->schedule_in_local(this, scan_msec_delay);
+      return EVENT_CONT;
+    }
+
+    ink_assert(this->od);
+    // put all the alternates in the open directory vector
+    int alt_count = vector.count();
+    for (int i = 0; i < alt_count; i++) {
+      write_vector->insert(vector.get(i));
+    }
+    od->writing_vec = 1;
+    vector.clear(false);
+    // check that the directory entry was not overwritten
+    // if so return failure
+    Debug("cache_scan", "got writer lock");
+    Dir *l = NULL;
+    Dir d;
+    Doc *doc = (Doc *) (buf->data() + offset);
+    offset = (char *) doc - buf->data() + vol->round_to_approx_size(doc->len);
+    // if the doc contains some data, then we need to create
+    // a new directory entry for this fragment. Remember the
+    // offset and the key in earliest_key
+    dir_assign(&od->first_dir, &dir);
+    if (doc->total_len) {
+      dir_assign(&od->single_doc_dir, &dir);
+      dir_set_tag(&od->single_doc_dir, doc->key.word(2));
+      od->single_doc_key = doc->key;
+      od->move_resident_alt = 1;
+    }
+
+    while (1) {
+      if (!dir_probe(&first_key, vol, &d, &l)) {
+        vol->close_write(this);
+        _action.continuation->handleEvent(CACHE_EVENT_SCAN_OPERATION_FAILED, 0);
+        SET_HANDLER(&CacheVC::scanObject);
+        return handleEvent(EVENT_IMMEDIATE, 0);
+      }
+      if (memcmp(&dir, &d, SIZEOF_DIR)) {
+        Debug("cache_scan", "dir entry has changed");
+        continue;
+      }
+      break;
+    }
+
+    // the document was not modified
+    // we are safe from now on as we hold the
+    // writer lock on the doc
+    if (f.evac_vector)
+      header_len = write_vector->marshal_length();
+    SET_HANDLER(&CacheVC::scanUpdateDone);
+    ret = do_write_call();
+  }
+  if (ret == EVENT_RETURN)
+    return handleEvent(AIO_EVENT_DONE, 0);
+  return ret;
+}
+
+int
+CacheVC::scanUpdateDone(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  Debug("cache_scan_truss", "inside %p:scanUpdateDone", this);
+  cancel_trigger();
+  // get volume lock
+  CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+  if (lock) {
+    // insert a directory entry for the previous fragment
+    dir_overwrite(&first_key, vol, &dir, &od->first_dir, false);
+    if (od->move_resident_alt) {
+      dir_insert(&od->single_doc_key, vol, &od->single_doc_dir);
+    }
+    ink_assert(vol->open_read(&first_key));
+    ink_assert(this->od);
+    vol->close_write(this);
+    SET_HANDLER(&CacheVC::scanObject);
+    return handleEvent(EVENT_IMMEDIATE, 0);
+  } else {
+    mutex->thread_holding->schedule_in_local(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+    return EVENT_CONT;
+  }
+}
+
diff --git a/iocore/cache/CacheWrite.cc b/iocore/cache/CacheWrite.cc
new file mode 100644
index 00000000..ee2160fc
--- /dev/null
+++ b/iocore/cache/CacheWrite.cc
@@ -0,0 +1,1965 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "P_Cache.h"
+
+#define IS_POWER_2(_x) (!((_x)&((_x)-1)))
+#define UINT_WRAP_LTE(_x, _y) (((_y)-(_x)) < INT_MAX) // exploit overflow
+#define UINT_WRAP_GTE(_x, _y) (((_x)-(_y)) < INT_MAX) // exploit overflow
+#define UINT_WRAP_LT(_x, _y) (((_x)-(_y)) >= INT_MAX) // exploit overflow
+
+// Given a key, finds the index of the alternate which matches
+// used to get the alternate which is actually present in the document
+#ifdef HTTP_CACHE
+int
+get_alternate_index(CacheHTTPInfoVector *cache_vector, CacheKey key)
+{
+  int alt_count = cache_vector->count();
+  CacheHTTPInfo *obj;
+  if (!alt_count)
+    return -1;
+  for (int i = 0; i < alt_count; i++) {
+    obj = cache_vector->get(i);
+    if (obj->compare_object_key(&key)) {
+      // Debug("cache_key", "Resident alternate key  %X", key.word(0));
+      return i;
+    }
+  }
+  return -1;
+}
+
+// Adds/Deletes alternate to the od->vector (write_vector). If the vector
+// is empty, deletes the directory entry pointing to the vector. Each
+// CacheVC must write the vector down to disk after making changes. If we
+// wait till the last writer, that writer will have the responsibility of
+// of writing the vector even if the http state machine aborts.  This
+// makes it easier to handle situations where writers abort.
+int
+CacheVC::updateVector(int /* event ATS_UNUSED */, Event */* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  if (od->reading_vec || od->writing_vec)
+    VC_SCHED_LOCK_RETRY();
+  int ret = 0;
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock || od->writing_vec)
+      VC_SCHED_LOCK_RETRY();
+
+    int vec = alternate.valid();
+    if (f.update) {
+      // all Update cases. Need to get the alternate index.
+      alternate_index = get_alternate_index(write_vector, update_key);
+      Debug("cache_update", "updating alternate index %d frags %d", alternate_index, alternate_index >=0 ? write_vector->get(alternate_index)->get_frag_offset_count() : -1);
+      // if its an alternate delete
+      if (!vec) {
+        ink_assert(!total_len);
+        if (alternate_index >= 0) {
+          write_vector->remove(alternate_index, true);
+          alternate_index = CACHE_ALT_REMOVED;
+          if (!write_vector->count())
+            dir_delete(&first_key, vol, &od->first_dir);
+        }
+        // the alternate is not there any more. somebody might have
+        // deleted it. Just close this writer
+        if (alternate_index != CACHE_ALT_REMOVED || !write_vector->count()) {
+          SET_HANDLER(&CacheVC::openWriteCloseDir);
+          return openWriteCloseDir(EVENT_IMMEDIATE, 0);
+        }
+      }
+      if (update_key == od->single_doc_key && (total_len || !vec))
+        od->move_resident_alt = 0;
+    }
+    if (cache_config_http_max_alts > 1 && write_vector->count() >= cache_config_http_max_alts && alternate_index < 0) {
+      if (od->move_resident_alt && get_alternate_index(write_vector, od->single_doc_key) == 0)
+        od->move_resident_alt = 0;
+      write_vector->remove(0, true);
+    }
+    if (vec) {
+      /* preserve fragment offset data from old info. This method is
+         called iff the update is a header only update so the fragment
+         data should remain valid.
+      */
+      if (alternate_index >= 0)
+        alternate.copy_frag_offsets_from(write_vector->get(alternate_index));
+      alternate_index = write_vector->insert(&alternate, alternate_index);
+    }
+
+    if (od->move_resident_alt && first_buf._ptr() && !od->has_multiple_writers()) {
+      Doc *doc = (Doc *) first_buf->data();
+      int small_doc = (int64_t)doc->data_len() < (int64_t)cache_config_alt_rewrite_max_size;
+      int have_res_alt = doc->key == od->single_doc_key;
+      // if the new alternate is not written with the vector
+      // then move the old one with the vector
+      // if its a header only update move the resident alternate
+      // with the vector.
+      // We are sure that the body of the resident alternate that we are
+      // rewriting has not changed and the alternate is not being deleted,
+      // since we set od->move_resident_alt  to 0 in that case
+      // (in updateVector)
+      if (small_doc && have_res_alt && (fragment || (f.update && !total_len))) {
+        // for multiple fragment document, we must have done
+        // CacheVC:openWriteCloseDataDone
+        ink_assert(!fragment || f.data_done);
+        od->move_resident_alt = 0;
+        f.rewrite_resident_alt = 1;
+        write_len = doc->data_len();
+        Debug("cache_update_alt",
+              "rewriting resident alt size: %d key: %X, first_key: %X", write_len, doc->key.word(0), first_key.word(0));
+      }
+    }
+    header_len = write_vector->marshal_length();
+    od->writing_vec = 1;
+    f.use_first_key = 1;
+    SET_HANDLER(&CacheVC::openWriteCloseHeadDone);
+    ret = do_write_call();
+  }
+  if (ret == EVENT_RETURN)
+    return handleEvent(AIO_EVENT_DONE, 0);
+  return ret;
+}
+#endif
+/*
+   The following fields of the CacheVC are used when writing down a fragment.
+   Make sure that each of the fields is set to a valid value before calling
+   this function
+   - frag_type. Checked to see if a vector needs to be marshalled.
+   - f.use_first_key. To decide if the vector should be marshalled and to set
+     the doc->key to the appropriate key (first_key or earliest_key)
+   - f.evac_vector. If set, the writer is pushed in the beginning of the
+     agg queue. And if !f.evac_vector && !f.update the alternate->object_size
+     is set to vc->total_len
+   - f.readers.  If set, assumes that this is an evacuation, so the write
+     is not aborted even if vol->agg_todo_size > agg_write_backlog
+   - f.evacuator. If this is an evacuation.
+   - f.rewrite_resident_alt. The resident alternate is rewritten.
+   - f.update. Used only if the write_vector needs to be written to disk.
+     Used to set the length of the alternate to total_len.
+   - write_vector. Used only if frag_type == CACHE_FRAG_TYPE_HTTP &&
+     (f.use_fist_key || f.evac_vector) is set. Write_vector is written to disk
+   - alternate_index. Used only if write_vector needs to be written to disk.
+     Used to find out the VC's alternate in the write_vector and set its
+     length to tatal_len.
+   - write_len. The number of bytes for this fragment.
+   - total_len. The total number of bytes for the document so far.
+     Doc->total_len and alternate's total len is set to this value.
+   - first_key. Doc's first_key is set to this value.
+   - pin_in_cache. Doc's pinned value is set to this + ink_get_hrtime().
+   - earliest_key. If f.use_first_key, Doc's key is set to this value.
+   - key. If !f.use_first_key, Doc's key is set to this value.
+   - blocks. Used only if write_len is set. Data to be written
+   - offset. Used only if write_len is set. offset into the block to copy
+     the data from.
+   - buf. Used only if f.evacuator is set. Should point to the old document.
+   The functions sets the length, offset, pinned, head and phase of vc->dir.
+   */
+
+int
+CacheVC::handleWrite(int event, Event */* e ATS_UNUSED */)
+{
+  // plain write case
+  ink_assert(!trigger);
+  frag_len = 0;
+
+  set_agg_write_in_progress();
+  POP_HANDLER;
+  agg_len = vol->round_to_approx_size(write_len + header_len + frag_len + sizeofDoc);
+  vol->agg_todo_size += agg_len;
+  bool agg_error =
+    (agg_len > AGG_SIZE || header_len + sizeofDoc > MAX_FRAG_SIZE ||
+     (!f.readers && (vol->agg_todo_size > cache_config_agg_write_backlog + AGG_SIZE) && write_len));
+#ifdef CACHE_AGG_FAIL_RATE
+  agg_error = agg_error || ((uint32_t) mutex->thread_holding->generator.random() <
+                            (uint32_t) (UINT_MAX * CACHE_AGG_FAIL_RATE));
+#endif
+  bool max_doc_error = (cache_config_max_doc_size &&
+                        (cache_config_max_doc_size < vio.ndone ||
+                         (vio.nbytes != INT64_MAX && (cache_config_max_doc_size < vio.nbytes))));
+
+  if (agg_error || max_doc_error) {
+    CACHE_INCREMENT_DYN_STAT(cache_write_backlog_failure_stat);
+    CACHE_INCREMENT_DYN_STAT(base_stat + CACHE_STAT_FAILURE);
+    vol->agg_todo_size -= agg_len;
+    io.aio_result = AIO_SOFT_FAILURE;
+    if (event == EVENT_CALL)
+      return EVENT_RETURN;
+    return handleEvent(AIO_EVENT_DONE, 0);
+  }
+  ink_assert(agg_len <= AGG_SIZE);
+  if (f.evac_vector)
+    vol->agg.push(this);
+  else
+    vol->agg.enqueue(this);
+  if (!vol->is_io_in_progress())
+    return vol->aggWrite(event, this);
+  return EVENT_CONT;
+}
+
+static char *
+iobufferblock_memcpy(char *p, int len, IOBufferBlock *ab, int offset)
+{
+  IOBufferBlock *b = ab;
+  while (b && len >= 0) {
+    char *start = b->_start;
+    char *end = b->_end;
+    int max_bytes = end - start;
+    max_bytes -= offset;
+    if (max_bytes <= 0) {
+      offset = -max_bytes;
+      b = b->next;
+      continue;
+    }
+    int bytes = len;
+    if (bytes >= max_bytes)
+      bytes = max_bytes;
+    ::memcpy(p, start + offset, bytes);
+    p += bytes;
+    len -= bytes;
+    b = b->next;
+    offset = 0;
+  }
+  return p;
+}
+
+EvacuationBlock *
+Vol::force_evacuate_head(Dir *evac_dir, int pinned)
+{
+  // build an evacuation block for the object
+  EvacuationBlock *b = evacuation_block_exists(evac_dir, this);
+  // if we have already started evacuating this document, its too late
+  // to evacuate the head...bad luck
+  if (b && b->f.done)
+    return b;
+
+  if (!b) {
+    b = new_EvacuationBlock(mutex->thread_holding);
+    b->dir = *evac_dir;
+    DDebug("cache_evac", "force: %d, %d", (int) dir_offset(evac_dir), (int) dir_phase(evac_dir));
+    evacuate[dir_evac_bucket(evac_dir)].push(b);
+  }
+  b->f.pinned = pinned;
+  b->f.evacuate_head = 1;
+  b->evac_frags.key.set(0, 0);  // ensure that the block gets
+  // evacuated no matter what
+  b->readers = 0;             // ensure that the block does not disappear
+  return b;
+}
+
+void
+Vol::scan_for_pinned_documents()
+{
+  if (cache_config_permit_pinning) {
+    // we can't evacuate anything between header->write_pos and
+    // header->write_pos + AGG_SIZE.
+    int ps = offset_to_vol_offset(this, header->write_pos + AGG_SIZE);
+    int pe = offset_to_vol_offset(this, header->write_pos + 2 * EVACUATION_SIZE + (len / PIN_SCAN_EVERY));
+    int vol_end_offset = offset_to_vol_offset(this, len + skip);
+    int before_end_of_vol = pe < vol_end_offset;
+    DDebug("cache_evac", "scan %d %d", ps, pe);
+    for (int i = 0; i < vol_direntries(this); i++) {
+      // is it a valid pinned object?
+      if (!dir_is_empty(&dir[i]) && dir_pinned(&dir[i]) && dir_head(&dir[i])) {
+        // select objects only within this PIN_SCAN region
+        int o = dir_offset(&dir[i]);
+        if (dir_phase(&dir[i]) == header->phase) {
+          if (before_end_of_vol || o >= (pe - vol_end_offset))
+            continue;
+        } else {
+          if (o<ps || o>= pe)
+            continue;
+        }
+        force_evacuate_head(&dir[i], 1);
+        //      DDebug("cache_evac", "scan pinned at offset %d %d %d %d %d %d",
+        //            (int)dir_offset(&b->dir), ps, o , pe, i, (int)b->f.done);
+      }
+    }
+  }
+}
+
+/* NOTE:: This state can be called by an AIO thread, so DON'T DON'T
+   DON'T schedule any events on this thread using VC_SCHED_XXX or
+   mutex->thread_holding->schedule_xxx_local(). ALWAYS use
+   eventProcessor.schedule_xxx().
+   */
+int
+Vol::aggWriteDone(int event, Event *e)
+{
+  cancel_trigger();
+
+  // ensure we have the cacheDirSync lock if we intend to call it later
+  // retaking the current mutex recursively is a NOOP
+  CACHE_TRY_LOCK(lock, dir_sync_waiting ? cacheDirSync->mutex : mutex, mutex->thread_holding);
+  if (!lock) {
+    eventProcessor.schedule_in(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+    return EVENT_CONT;
+  }
+  if (io.ok()) {
+    header->last_write_pos = header->write_pos;
+    header->write_pos += io.aiocb.aio_nbytes;
+    ink_assert(header->write_pos >= start);
+    DDebug("cache_agg", "Dir %s, Write: %" PRIu64 ", last Write: %" PRIu64 "\n",
+          hash_id, header->write_pos, header->last_write_pos);
+    ink_assert(header->write_pos == header->agg_pos);
+    if (header->write_pos + EVACUATION_SIZE > scan_pos)
+      periodic_scan();
+    agg_buf_pos = 0;
+    header->write_serial++;
+  } else {
+    // delete all the directory entries that we inserted
+    // for fragments is this aggregation buffer
+    Debug("cache_disk_error", "Write error on disk %s\n \
+              write range : [%" PRIu64 " - %" PRIu64 " bytes]  [%" PRIu64 " - %" PRIu64 " blocks] \n",
+          hash_id, (uint64_t)io.aiocb.aio_offset,
+          (uint64_t)io.aiocb.aio_offset + io.aiocb.aio_nbytes,
+          (uint64_t)io.aiocb.aio_offset / CACHE_BLOCK_SIZE,
+          (uint64_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) / CACHE_BLOCK_SIZE);
+    Dir del_dir;
+    dir_clear(&del_dir);
+    for (int done = 0; done < agg_buf_pos;) {
+      Doc *doc = (Doc *) (agg_buffer + done);
+      dir_set_offset(&del_dir, header->write_pos + done);
+      dir_delete(&doc->key, this, &del_dir);
+      done += round_to_approx_size(doc->len);
+    }
+    agg_buf_pos = 0;
+  }
+  set_io_not_in_progress();
+  // callback ready sync CacheVCs
+  CacheVC *c = 0;
+  while ((c = sync.dequeue())) {
+    if (UINT_WRAP_LTE(c->write_serial + 2, header->write_serial))
+      c->initial_thread->schedule_imm_signal(c, AIO_EVENT_DONE);
+    else {
+      sync.push(c); // put it back on the front
+      break;
+    }
+  }
+  if (dir_sync_waiting) {
+    dir_sync_waiting = 0;
+    cacheDirSync->handleEvent(EVENT_IMMEDIATE, 0);
+  }
+  if (agg.head || sync.head)
+    return aggWrite(event, e);
+  return EVENT_CONT;
+}
+
+CacheVC *
+new_DocEvacuator(int nbytes, Vol *vol)
+{
+  CacheVC *c = new_CacheVC(vol);
+  ProxyMutex *mutex = vol->mutex;
+  c->base_stat = cache_evacuate_active_stat;
+  CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+  c->buf = new_IOBufferData(iobuffer_size_to_index(nbytes, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+  c->vol = vol;
+  c->f.evacuator = 1;
+  c->earliest_key = zero_key;
+  SET_CONTINUATION_HANDLER(c, &CacheVC::evacuateDocDone);
+  return c;
+}
+
+int
+CacheVC::evacuateReadHead(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  // The evacuator vc shares the lock with the volition mutex
+  ink_assert(vol->mutex->thread_holding == this_ethread());
+  cancel_trigger();
+  Doc *doc = (Doc *) buf->data();
+#ifdef HTTP_CACHE
+  CacheHTTPInfo *alternate_tmp = 0;
+#endif
+  if (!io.ok())
+    goto Ldone;
+  // a directory entry which is nolonger valid may have been overwritten
+  if (!dir_valid(vol, &dir)) {
+    last_collision = NULL;
+    goto Lcollision;
+  }
+  if (doc->magic != DOC_MAGIC || !(doc->first_key == first_key))
+    goto Lcollision;
+#ifdef HTTP_CACHE
+  alternate_tmp = 0;
+  if (doc->ftype == CACHE_FRAG_TYPE_HTTP && doc->hlen) {
+    // its an http document
+    if (vector.get_handles(doc->hdr(), doc->hlen) != doc->hlen) {
+      Note("bad vector detected during evacuation");
+      goto Ldone;
+    }
+    alternate_index = get_alternate_index(&vector, earliest_key);
+    if (alternate_index < 0)
+      goto Ldone;
+    alternate_tmp = vector.get(alternate_index);
+    doc_len = alternate_tmp->object_size_get();
+    Debug("cache_evac", "evacuateReadHead http earliest %X first: %X len: %" PRId64,
+          first_key.word(0), earliest_key.word(0), doc_len);
+  } else
+#endif
+  {
+    // non-http document
+    CacheKey next_key;
+    next_CacheKey(&next_key, &doc->key);
+    if (!(next_key == earliest_key))
+      goto Ldone;
+    doc_len = doc->total_len;
+    DDebug("cache_evac",
+          "evacuateReadHead non-http earliest %X first: %X len: %" PRId64, first_key.word(0), earliest_key.word(0), doc_len);
+  }
+  if (doc_len == total_len) {
+    // the whole document has been evacuated. Insert the directory
+    // entry in the directory.
+    dir_lookaside_fixup(&earliest_key, vol);
+    return free_CacheVC(this);
+  }
+  return EVENT_CONT;
+Lcollision:
+  if (dir_probe(&first_key, vol, &dir, &last_collision)) {
+    int ret = do_read_call(&first_key);
+    if (ret == EVENT_RETURN)
+      return handleEvent(AIO_EVENT_DONE, 0);
+    return ret;
+  }
+Ldone:
+  dir_lookaside_remove(&earliest_key, vol);
+  return free_CacheVC(this);
+}
+
+int
+CacheVC::evacuateDocDone(int /* event ATS_UNUSED */, Event */* e ATS_UNUSED */)
+{
+  ink_assert(vol->mutex->thread_holding == this_ethread());
+  Doc *doc = (Doc *) buf->data();
+  DDebug("cache_evac", "evacuateDocDone %X o %d p %d new_o %d new_p %d",
+        (int) key.word(0), (int) dir_offset(&overwrite_dir),
+        (int) dir_phase(&overwrite_dir), (int) dir_offset(&dir), (int) dir_phase(&dir));
+  int i = dir_evac_bucket(&overwrite_dir);
+  // nasty beeping race condition, need to have the EvacuationBlock here
+  EvacuationBlock *b = vol->evacuate[i].head;
+  for (; b; b = b->link.next) {
+    if (dir_offset(&b->dir) == dir_offset(&overwrite_dir)) {
+
+      // If the document is single fragment (although not tied to the vector),
+      // then we don't have to put the directory entry in the lookaside
+      // buffer. But, we have no way of finding out if the document is
+      // single fragment. doc->single_fragment() can be true for a multiple
+      // fragment document since total_len and doc->len could be equal at
+      // the time we write the fragment down. To be on the safe side, we
+      // only overwrite the entry in the directory if its not a head.
+      if (!dir_head(&overwrite_dir)) {
+        // find the earliest key
+        EvacuationKey *evac = &b->evac_frags;
+        for (; evac && !(evac->key == doc->key); evac = evac->link.next);
+        ink_assert(evac);
+        if (!evac)
+          break;
+        if (evac->earliest_key.fold()) {
+          DDebug("cache_evac", "evacdocdone: evacuating key %X earliest %X",
+                evac->key.word(0), evac->earliest_key.word(0));
+          EvacuationBlock *eblock = 0;
+          Dir dir_tmp;
+          dir_lookaside_probe(&evac->earliest_key, vol, &dir_tmp, &eblock);
+          if (eblock) {
+            CacheVC *earliest_evac = eblock->earliest_evacuator;
+            earliest_evac->total_len += doc->data_len();
+            if (earliest_evac->total_len == earliest_evac->doc_len) {
+              dir_lookaside_fixup(&evac->earliest_key, vol);
+              free_CacheVC(earliest_evac);
+            }
+          }
+        }
+        dir_overwrite(&doc->key, vol, &dir, &overwrite_dir);
+      }
+      // if the tag in the overwrite_dir matches the first_key in the
+      // document, then it has to be the vector. We gaurantee that
+      // the first_key and the earliest_key will never collide (see
+      // Cache::open_write). Once we know its the vector, we can
+      // safely overwrite the first_key in the directory.
+      if (dir_head(&overwrite_dir) && b->f.evacuate_head) {
+        DDebug("cache_evac",
+              "evacuateDocDone evacuate_head %X %X hlen %d offset %d",
+              (int) key.word(0), (int) doc->key.word(0), doc->hlen, (int) dir_offset(&overwrite_dir));
+
+        if (dir_compare_tag(&overwrite_dir, &doc->first_key)) {
+          OpenDirEntry *cod;
+          DDebug("cache_evac", "evacuating vector: %X %d",
+                (int) doc->first_key.word(0), (int) dir_offset(&overwrite_dir));
+          if ((cod = vol->open_read(&doc->first_key))) {
+            // writer  exists
+            DDebug("cache_evac", "overwriting the open directory %X %d %d",
+                  (int) doc->first_key.word(0), (int) dir_offset(&cod->first_dir), (int) dir_offset(&dir));
+            cod->first_dir = dir;
+
+          }
+          if (dir_overwrite(&doc->first_key, vol, &dir, &overwrite_dir)) {
+            int64_t o = dir_offset(&overwrite_dir), n = dir_offset(&dir);
+            vol->ram_cache->fixup(&doc->first_key, (uint32_t)(o >> 32), (uint32_t)o, (uint32_t)(n >> 32), (uint32_t)n);
+          }
+        } else {
+          DDebug("cache_evac", "evacuating earliest: %X %d", (int) doc->key.word(0), (int) dir_offset(&overwrite_dir));
+          ink_assert(dir_compare_tag(&overwrite_dir, &doc->key));
+          ink_assert(b->earliest_evacuator == this);
+          total_len += doc->data_len();
+          first_key = doc->first_key;
+          earliest_dir = dir;
+          if (dir_probe(&first_key, vol, &dir, &last_collision) > 0) {
+            dir_lookaside_insert(b, vol, &earliest_dir);
+            // read the vector
+            SET_HANDLER(&CacheVC::evacuateReadHead);
+            int ret = do_read_call(&first_key);
+            if (ret == EVENT_RETURN)
+              return handleEvent(AIO_EVENT_DONE, 0);
+            return ret;
+          }
+        }
+      }
+      break;
+    }
+  }
+  return free_CacheVC(this);
+}
+
+static int
+evacuate_fragments(CacheKey *key, CacheKey *earliest_key, int force, Vol *vol)
+{
+  Dir dir, *last_collision = 0;
+  int i = 0;
+  while (dir_probe(key, vol, &dir, &last_collision)) {
+    // next fragment cannot be a head...if it is, it must have been a
+    // directory collision.
+    if (dir_head(&dir)
+#if TS_USE_INTERIM_CACHE == 1
+        || dir_ininterim(&dir)
+#endif
+        )
+      continue;
+    EvacuationBlock *b = evacuation_block_exists(&dir, vol);
+    if (!b) {
+      b = new_EvacuationBlock(vol->mutex->thread_holding);
+      b->dir = dir;
+      b->evac_frags.key = *key;
+      b->evac_frags.earliest_key = *earliest_key;
+      vol->evacuate[dir_evac_bucket(&dir)].push(b);
+      i++;
+    } else {
+      ink_assert(dir_offset(&dir) == dir_offset(&b->dir));
+      ink_assert(dir_phase(&dir) == dir_phase(&b->dir));
+      EvacuationKey *evac_frag = evacuationKeyAllocator.alloc();
+      evac_frag->key = *key;
+      evac_frag->earliest_key = *earliest_key;
+      evac_frag->link.next = b->evac_frags.link.next;
+      b->evac_frags.link.next = evac_frag;
+    }
+    if (force)
+      b->readers = 0;
+    DDebug("cache_evac",
+          "next fragment %X Earliest: %X offset %d phase %d force %d",
+          (int) key->word(0), (int) earliest_key->word(0), (int) dir_offset(&dir), (int) dir_phase(&dir), force);
+  }
+  return i;
+}
+
+int
+Vol::evacuateWrite(CacheVC *evacuator, int event, Event *e)
+{
+  // push to front of aggregation write list, so it is written first
+
+  evacuator->agg_len = round_to_approx_size(((Doc *)evacuator->buf->data())->len);
+  agg_todo_size += evacuator->agg_len;
+  /* insert the evacuator after all the other evacuators */
+  CacheVC *cur = (CacheVC *) agg.head;
+  CacheVC *after = NULL;
+  for (; cur && cur->f.evacuator; cur = (CacheVC *) cur->link.next)
+    after = cur;
+  ink_assert(evacuator->agg_len <= AGG_SIZE);
+  agg.insert(evacuator, after);
+  return aggWrite(event, e);
+}
+
+int
+Vol::evacuateDocReadDone(int event, Event *e)
+{
+  cancel_trigger();
+  if (event != AIO_EVENT_DONE)
+    return EVENT_DONE;
+  ink_assert(is_io_in_progress());
+  set_io_not_in_progress();
+  ink_assert(mutex->thread_holding == this_ethread());
+  Doc *doc = (Doc *) doc_evacuator->buf->data();
+  CacheKey next_key;
+  EvacuationBlock *b = NULL;
+  if (doc->magic != DOC_MAGIC) {
+    Debug("cache_evac", "DOC magic: %X %d",
+          (int) dir_tag(&doc_evacuator->overwrite_dir), (int) dir_offset(&doc_evacuator->overwrite_dir));
+    ink_assert(doc->magic == DOC_MAGIC);
+    goto Ldone;
+  }
+  DDebug("cache_evac", "evacuateDocReadDone %X offset %d",
+        (int) doc->key.word(0), (int) dir_offset(&doc_evacuator->overwrite_dir));
+
+  b = evacuate[dir_evac_bucket(&doc_evacuator->overwrite_dir)].head;
+  while (b) {
+    if (dir_offset(&b->dir) == dir_offset(&doc_evacuator->overwrite_dir))
+      break;
+    b = b->link.next;
+  }
+  if (!b)
+    goto Ldone;
+  if ((b->f.pinned && !b->readers) && doc->pinned < (uint32_t) (ink_get_based_hrtime() / HRTIME_SECOND))
+    goto Ldone;
+
+  if (dir_head(&b->dir) && b->f.evacuate_head) {
+    ink_assert(!b->evac_frags.key.fold());
+    // if its a head (vector), evacuation is real simple...we just
+    // need to write this vector down and overwrite the directory entry.
+    if (dir_compare_tag(&b->dir, &doc->first_key)) {
+      doc_evacuator->key = doc->first_key;
+      b->evac_frags.key = doc->first_key;
+      DDebug("cache_evac", "evacuating vector %X offset %d",
+            (int) doc->first_key.word(0), (int) dir_offset(&doc_evacuator->overwrite_dir));
+      b->f.unused = 57;
+    } else {
+      // if its an earliest fragment (alternate) evacuation, things get
+      // a little tricky. We have to propagate the earliest key to the next
+      // fragments for this alternate. The last fragment to be evacuated
+      // fixes up the lookaside buffer.
+      doc_evacuator->key = doc->key;
+      doc_evacuator->earliest_key = doc->key;
+      b->evac_frags.key = doc->key;
+      b->evac_frags.earliest_key = doc->key;
+      b->earliest_evacuator = doc_evacuator;
+      DDebug("cache_evac", "evacuating earliest %X %X evac: %p offset: %d",
+            (int) b->evac_frags.key.word(0), (int) doc->key.word(0),
+            doc_evacuator, (int) dir_offset(&doc_evacuator->overwrite_dir));
+      b->f.unused = 67;
+    }
+  } else {
+    // find which key matches the document
+    EvacuationKey *ek = &b->evac_frags;
+    for (; ek && !(ek->key == doc->key); ek = ek->link.next);
+    if (!ek) {
+      b->f.unused = 77;
+      goto Ldone;
+    }
+    doc_evacuator->key = ek->key;
+    doc_evacuator->earliest_key = ek->earliest_key;
+    DDebug("cache_evac", "evacuateDocReadDone key: %X earliest: %X",
+          (int) ek->key.word(0), (int) ek->earliest_key.word(0));
+    b->f.unused = 87;
+  }
+  // if the tag in the c->dir does match the first_key in the
+  // document, then it has to be the earliest fragment. We gaurantee that
+  // the first_key and the earliest_key will never collide (see
+  // Cache::open_write).
+  if (!dir_head(&b->dir) || !dir_compare_tag(&b->dir, &doc->first_key)) {
+    next_CacheKey(&next_key, &doc->key);
+    evacuate_fragments(&next_key, &doc_evacuator->earliest_key, !b->readers, this);
+  }
+  return evacuateWrite(doc_evacuator, event, e);
+Ldone:
+  free_CacheVC(doc_evacuator);
+  doc_evacuator = 0;
+  return aggWrite(event, e);
+}
+
+int
+Vol::evac_range(off_t low, off_t high, int evac_phase)
+{
+  off_t s = offset_to_vol_offset(this, low);
+  off_t e = offset_to_vol_offset(this, high);
+  int si = dir_offset_evac_bucket(s);
+  int ei = dir_offset_evac_bucket(e);
+
+  for (int i = si; i <= ei; i++) {
+    EvacuationBlock *b = evacuate[i].head;
+    EvacuationBlock *first = 0;
+    int64_t first_offset = INT64_MAX;
+    for (; b; b = b->link.next) {
+      int64_t offset = dir_offset(&b->dir);
+      int phase = dir_phase(&b->dir);
+      if (offset >= s && offset < e && !b->f.done && phase == evac_phase)
+        if (offset < first_offset) {
+          first = b;
+          first_offset = offset;
+        }
+    }
+    if (first) {
+      first->f.done = 1;
+      io.aiocb.aio_fildes = fd;
+      io.aiocb.aio_nbytes = dir_approx_size(&first->dir);
+      io.aiocb.aio_offset = vol_offset(this, &first->dir);
+      if ((off_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) > (off_t)(skip + len))
+        io.aiocb.aio_nbytes = skip + len - io.aiocb.aio_offset;
+      doc_evacuator = new_DocEvacuator(io.aiocb.aio_nbytes, this);
+      doc_evacuator->overwrite_dir = first->dir;
+
+      io.aiocb.aio_buf = doc_evacuator->buf->data();
+      io.action = this;
+      io.thread = AIO_CALLBACK_THREAD_ANY;
+      DDebug("cache_evac", "evac_range evacuating %X %d", (int)dir_tag(&first->dir), (int)dir_offset(&first->dir));
+      SET_HANDLER(&Vol::evacuateDocReadDone);
+      ink_assert(ink_aio_read(&io) >= 0);
+      return -1;
+    }
+  }
+  return 0;
+}
+
+
+static int
+agg_copy(char *p, CacheVC *vc)
+{
+  Vol *vol = vc->vol;
+  off_t o = vol->header->write_pos + vol->agg_buf_pos;
+
+  if (!vc->f.evacuator) {
+    Doc *doc = (Doc *) p;
+    IOBufferBlock *res_alt_blk = 0;
+
+    uint32_t len = vc->write_len + vc->header_len + vc->frag_len + sizeofDoc;
+    ink_assert(vc->frag_type != CACHE_FRAG_TYPE_HTTP || len != sizeofDoc);
+    ink_assert(vol->round_to_approx_size(len) == vc->agg_len);
+    // update copy of directory entry for this document
+    dir_set_approx_size(&vc->dir, vc->agg_len);
+    dir_set_offset(&vc->dir, offset_to_vol_offset(vol, o));
+    ink_assert(vol_offset(vol, &vc->dir) < (vol->skip + vol->len));
+#if TS_USE_INTERIM_CACHE == 1
+    dir_set_indisk(&vc->dir);
+#endif
+    dir_set_phase(&vc->dir, vol->header->phase);
+
+    // fill in document header
+    doc->magic = DOC_MAGIC;
+    doc->len = len;
+    doc->hlen = vc->header_len;
+    doc->ftype = vc->frag_type;
+    doc->_flen = 0;
+    doc->total_len = vc->total_len;
+    doc->first_key = vc->first_key;
+    doc->sync_serial = vol->header->sync_serial;
+    vc->write_serial = doc->write_serial = vol->header->write_serial;
+    doc->checksum = DOC_NO_CHECKSUM;
+    if (vc->pin_in_cache) {
+      dir_set_pinned(&vc->dir, 1);
+      doc->pinned = (uint32_t) (ink_get_based_hrtime() / HRTIME_SECOND) + vc->pin_in_cache;
+    } else {
+      dir_set_pinned(&vc->dir, 0);
+      doc->pinned = 0;
+    }
+
+    if (vc->f.use_first_key) {
+      if (doc->data_len()
+#ifdef HTTP_CACHE
+                  || vc->f.allow_empty_doc
+#endif
+                  )
+        doc->key = vc->earliest_key;
+      else // the vector is being written by itself
+        prev_CacheKey(&doc->key, &vc->earliest_key);
+      dir_set_head(&vc->dir, true);
+    } else {
+      doc->key = vc->key;
+      dir_set_head(&vc->dir, !vc->fragment);
+    }
+
+#ifdef HTTP_CACHE
+    if (vc->f.rewrite_resident_alt) {
+      ink_assert(vc->f.use_first_key);
+      Doc *res_doc = (Doc *) vc->first_buf->data();
+      res_alt_blk = new_IOBufferBlock(vc->first_buf, res_doc->data_len(), sizeofDoc + res_doc->hlen);
+      doc->key = res_doc->key;
+      doc->total_len = res_doc->data_len();
+    }
+#endif
+    // update the new_info object_key, and total_len and dirinfo
+    if (vc->header_len) {
+      ink_assert(vc->f.use_first_key);
+#ifdef HTTP_CACHE
+      if (vc->frag_type == CACHE_FRAG_TYPE_HTTP) {
+        ink_assert(vc->write_vector->count() > 0);
+        if (!vc->f.update && !vc->f.evac_vector) {
+          ink_assert(!(vc->first_key == zero_key));
+          CacheHTTPInfo *http_info = vc->write_vector->get(vc->alternate_index);
+          http_info->object_size_set(vc->total_len);
+        }
+        // update + data_written =>  Update case (b)
+        // need to change the old alternate's object length
+        if (vc->f.update && vc->total_len) {
+          CacheHTTPInfo *http_info = vc->write_vector->get(vc->alternate_index);
+          http_info->object_size_set(vc->total_len);
+        }
+        ink_assert(!(((uintptr_t) &doc->hdr()[0]) & HDR_PTR_ALIGNMENT_MASK));
+        ink_assert(vc->header_len == vc->write_vector->marshal(doc->hdr(), vc->header_len));
+      } else
+#endif
+        memcpy(doc->hdr(), vc->header_to_write, vc->header_len);
+      // the single fragment flag is not used in the write call.
+      // putting it in for completeness.
+      vc->f.single_fragment = doc->single_fragment();
+    }
+    // move data
+    if (vc->write_len) {
+      {
+        ProxyMutex *mutex ATS_UNUSED = vc->vol->mutex;
+        ink_assert(mutex->thread_holding == this_ethread());
+        CACHE_DEBUG_SUM_DYN_STAT(cache_write_bytes_stat, vc->write_len);
+      }
+#ifdef HTTP_CACHE
+      if (vc->f.rewrite_resident_alt)
+        iobufferblock_memcpy(doc->data(), vc->write_len, res_alt_blk, 0);
+      else
+#endif
+        iobufferblock_memcpy(doc->data(), vc->write_len, vc->blocks, vc->offset);
+#ifdef VERIFY_JTEST_DATA
+      if (f.use_first_key && header_len) {
+        int ib = 0, xd = 0;
+        char xx[500];
+        new_info.request_get().url_get().print(xx, 500, &ib, &xd);
+        char *x = xx;
+        for (int q = 0; q < 3; q++)
+          x = strchr(x + 1, '/');
+        ink_assert(!memcmp(doc->hdr(), x, ib - (x - xx)));
+      }
+#endif
+
+    }
+    if (cache_config_enable_checksum) {
+      doc->checksum = 0;
+      for (char *b = doc->hdr(); b < (char *) doc + doc->len; b++)
+        doc->checksum += *b;
+    }
+    if (vc->frag_type == CACHE_FRAG_TYPE_HTTP && vc->f.single_fragment)
+      ink_assert(doc->hlen);
+
+    if (res_alt_blk)
+      res_alt_blk->free();
+
+    return vc->agg_len;
+  } else {
+    // for evacuated documents, copy the data, and update directory
+    Doc *doc = (Doc *) vc->buf->data();
+    int l = vc->vol->round_to_approx_size(doc->len);
+    {
+      ProxyMutex *mutex ATS_UNUSED = vc->vol->mutex;
+      ink_assert(mutex->thread_holding == this_ethread());
+      CACHE_DEBUG_INCREMENT_DYN_STAT(cache_gc_frags_evacuated_stat);
+      CACHE_DEBUG_SUM_DYN_STAT(cache_gc_bytes_evacuated_stat, l);
+    }
+
+    doc->sync_serial = vc->vol->header->sync_serial;
+    doc->write_serial = vc->vol->header->write_serial;
+
+    memcpy(p, doc, doc->len);
+
+    vc->dir = vc->overwrite_dir;
+    dir_set_offset(&vc->dir, offset_to_vol_offset(vc->vol, o));
+    dir_set_phase(&vc->dir, vc->vol->header->phase);
+#if TS_USE_INTERIM_CACHE == 1
+    dir_set_indisk(&vc->dir);
+#endif
+    return l;
+  }
+}
+
+inline void
+Vol::evacuate_cleanup_blocks(int i)
+{
+  EvacuationBlock *b = evacuate[i].head;
+  while (b) {
+    if (b->f.done &&
+        ((header->phase != dir_phase(&b->dir) &&
+          header->write_pos > vol_offset(this, &b->dir)) ||
+         (header->phase == dir_phase(&b->dir) && header->write_pos <= vol_offset(this, &b->dir)))) {
+      EvacuationBlock *x = b;
+      DDebug("cache_evac", "evacuate cleanup free %X offset %d",
+            (int) b->evac_frags.key.word(0), (int) dir_offset(&b->dir));
+      b = b->link.next;
+      evacuate[i].remove(x);
+      free_EvacuationBlock(x, mutex->thread_holding);
+      continue;
+    }
+    b = b->link.next;
+  }
+}
+
+void
+Vol::evacuate_cleanup()
+{
+  int64_t eo = ((header->write_pos - start) / CACHE_BLOCK_SIZE) + 1;
+  int64_t e = dir_offset_evac_bucket(eo);
+  int64_t sx = e - (evacuate_size / PIN_SCAN_EVERY) - 1;
+  int64_t s = sx;
+  int i;
+
+  if (e > evacuate_size)
+    e = evacuate_size;
+  if (sx < 0)
+    s = 0;
+  for (i = s; i < e; i++)
+    evacuate_cleanup_blocks(i);
+
+  // if we have wrapped, handle the end bit
+  if (sx <= 0) {
+    s = evacuate_size + sx - 2;
+    if (s < 0)
+      s = 0;
+    for (i = s; i < evacuate_size; i++)
+      evacuate_cleanup_blocks(i);
+  }
+}
+
+void
+Vol::periodic_scan()
+{
+  evacuate_cleanup();
+  scan_for_pinned_documents();
+  if (header->write_pos == start)
+    scan_pos = start;
+  scan_pos += len / PIN_SCAN_EVERY;
+}
+
+void
+Vol::agg_wrap()
+{
+  header->write_pos = start;
+  header->phase = !header->phase;
+
+  header->cycle++;
+  header->agg_pos = header->write_pos;
+  dir_lookaside_cleanup(this);
+  dir_clean_vol(this);
+  periodic_scan();
+}
+
+/* NOTE: This state can be called by an AIO thread, so DON'T DON'T
+   DON'T schedule any events on this thread using VC_SCHED_XXX or
+   mutex->thread_holding->schedule_xxx_local(). ALWAYS use
+   eventProcessor.schedule_xxx().
+   Also, make sure that any functions called by this also use
+   the eventProcessor to schedule events
+*/
+int
+Vol::aggWrite(int event, void */* e ATS_UNUSED */)
+{
+  ink_assert(!is_io_in_progress());
+
+  Que(CacheVC, link) tocall;
+  CacheVC *c;
+
+  cancel_trigger();
+
+Lagain:
+  // calculate length of aggregated write
+  for (c = (CacheVC *) agg.head; c;) {
+    int writelen = c->agg_len;
+    // [amc] this is checked multiple places, on here was it strictly less.
+    ink_assert(writelen <= AGG_SIZE);
+    if (agg_buf_pos + writelen > AGG_SIZE ||
+        header->write_pos + agg_buf_pos + writelen > (skip + len))
+      break;
+    DDebug("agg_read", "copying: %d, %" PRIu64 ", key: %d",
+          agg_buf_pos, header->write_pos + agg_buf_pos, c->first_key.word(0));
+    int wrotelen = agg_copy(agg_buffer + agg_buf_pos, c);
+    ink_assert(writelen == wrotelen);
+    agg_todo_size -= writelen;
+    agg_buf_pos += writelen;
+    CacheVC *n = (CacheVC *)c->link.next;
+    agg.dequeue();
+    if (c->f.sync && c->f.use_first_key) {
+      CacheVC *last = sync.tail;
+      while (last && UINT_WRAP_LT(c->write_serial, last->write_serial))
+        last = (CacheVC*)last->link.prev;
+      sync.insert(c, last);
+    } else if (c->f.evacuator)
+      c->handleEvent(AIO_EVENT_DONE, 0);
+    else
+      tocall.enqueue(c);
+    c = n;
+  }
+
+  // if we got nothing...
+  if (!agg_buf_pos) {
+    if (!agg.head && !sync.head) // nothing to get
+      return EVENT_CONT;
+    if (header->write_pos == start) {
+      // write aggregation too long, bad bad, punt on everything.
+      Note("write aggregation exceeds vol size");
+      ink_assert(!tocall.head);
+      ink_assert(false);
+      while ((c = agg.dequeue())) {
+        agg_todo_size -= c->agg_len;
+        if (c->initial_thread != NULL)
+          c->initial_thread->schedule_imm_signal(c, AIO_EVENT_DONE);
+        else
+          eventProcessor.schedule_imm_signal(c, ET_CALL, AIO_EVENT_DONE);
+      }
+      return EVENT_CONT;
+    }
+    // start back
+    if (agg.head) {
+      agg_wrap();
+      goto Lagain;
+    }
+  }
+
+  // evacuate space
+  off_t end = header->write_pos + agg_buf_pos + EVACUATION_SIZE;
+  if (evac_range(header->write_pos, end, !header->phase) < 0)
+    goto Lwait;
+  if (end > skip + len)
+    if (evac_range(start, start + (end - (skip + len)), header->phase) < 0)
+      goto Lwait;
+
+  // if agg.head, then we are near the end of the disk, so
+  // write down the aggregation in whatever size it is.
+  if (agg_buf_pos < AGG_HIGH_WATER && !agg.head && !sync.head && !dir_sync_waiting)
+    goto Lwait;
+
+  // write sync marker
+  if (!agg_buf_pos) {
+    ink_assert(sync.head);
+    int l = round_to_approx_size(sizeof(Doc));
+    agg_buf_pos = l;
+    Doc *d = (Doc*)agg_buffer;
+    memset(d, 0, sizeof(Doc));
+    d->magic = DOC_MAGIC;
+    d->len = l;
+    d->sync_serial = header->sync_serial;
+    d->write_serial = header->write_serial;
+  }
+
+  // set write limit
+  header->agg_pos = header->write_pos + agg_buf_pos;
+
+  io.aiocb.aio_fildes = fd;
+  io.aiocb.aio_offset = header->write_pos;
+  io.aiocb.aio_buf = agg_buffer;
+  io.aiocb.aio_nbytes = agg_buf_pos;
+  io.action = this;
+  /*
+    Callback on AIO thread so that we can issue a new write ASAP
+    as all writes are serialized in the volume.  This is not necessary
+    for reads proceed independently.
+   */
+  io.thread = AIO_CALLBACK_THREAD_AIO;
+  SET_HANDLER(&Vol::aggWriteDone);
+  ink_aio_write(&io);
+
+Lwait:
+  int ret = EVENT_CONT;
+  while ((c = tocall.dequeue())) {
+    if (event == EVENT_CALL && c->mutex->thread_holding == mutex->thread_holding)
+      ret = EVENT_RETURN;
+    else if (c->initial_thread != NULL)
+      c->initial_thread->schedule_imm_signal(c, AIO_EVENT_DONE);
+    else
+      eventProcessor.schedule_imm_signal(c, ET_CALL, AIO_EVENT_DONE);
+  }
+  return ret;
+}
+
+int
+CacheVC::openWriteCloseDir(int /* event ATS_UNUSED */, Event */* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock) {
+      SET_HANDLER(&CacheVC::openWriteCloseDir);
+      ink_assert(!is_io_in_progress());
+      VC_SCHED_LOCK_RETRY();
+    }
+    vol->close_write(this);
+    if (closed < 0 && fragment)
+      dir_delete(&earliest_key, vol, &earliest_dir);
+  }
+  if (is_debug_tag_set("cache_update")) {
+    if (f.update && closed > 0) {
+      if (!total_len && alternate_index != CACHE_ALT_REMOVED) {
+        Debug("cache_update", "header only %d (%" PRIu64 ", %" PRIu64 ")\n",
+              DIR_MASK_TAG(first_key.word(2)), update_key.b[0], update_key.b[1]);
+
+      } else if (total_len && alternate_index != CACHE_ALT_REMOVED) {
+        Debug("cache_update", "header body, %d, (%" PRIu64 ", %" PRIu64 "), (%" PRIu64 ", %" PRIu64 ")\n",
+              DIR_MASK_TAG(first_key.word(2)), update_key.b[0], update_key.b[1], earliest_key.b[0], earliest_key.b[1]);
+      } else if (!total_len && alternate_index == CACHE_ALT_REMOVED) {
+        Debug("cache_update", "alt delete, %d, (%" PRIu64 ", %" PRIu64 ")\n",
+              DIR_MASK_TAG(first_key.word(2)), update_key.b[0], update_key.b[1]);
+      }
+    }
+  }
+  // update the appropriate stat variable
+  // These variables may not give the current no of documents with
+  // one, two and three or more fragments. This is because for
+  // updates we dont decrement the variable corresponding the old
+  // size of the document
+  if ((closed == 1) && (total_len > 0
+#ifdef HTTP_CACHE
+                  || f.allow_empty_doc
+#endif
+                  )) {
+    DDebug("cache_stats", "Fragment = %d", fragment);
+    switch (fragment) {
+      case 0: CACHE_INCREMENT_DYN_STAT(cache_single_fragment_document_count_stat); break;
+      case 1: CACHE_INCREMENT_DYN_STAT(cache_two_fragment_document_count_stat); break;
+      default: CACHE_INCREMENT_DYN_STAT(cache_three_plus_plus_fragment_document_count_stat); break;
+    }
+  }
+  if (f.close_complete) {
+    recursive++;
+    ink_assert(!vol || this_ethread() != vol->mutex->thread_holding);
+    vio._cont->handleEvent(VC_EVENT_WRITE_COMPLETE, (void *) &vio);
+    recursive--;
+  }
+  return free_CacheVC(this);
+}
+
+int
+CacheVC::openWriteCloseHeadDone(int event, Event *e)
+{
+  if (event == AIO_EVENT_DONE)
+    set_io_not_in_progress();
+  else if (is_io_in_progress())
+    return EVENT_CONT;
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_LOCK_RETRY_EVENT();
+    od->writing_vec = 0;
+    if (!io.ok())
+      goto Lclose;
+    ink_assert(f.use_first_key);
+    if (!od->dont_update_directory) {
+      if (dir_is_empty(&od->first_dir)) {
+        dir_insert(&first_key, vol, &dir);
+      } else {
+        // multiple fragment vector write
+        dir_overwrite(&first_key, vol, &dir, &od->first_dir, false);
+        // insert moved resident alternate
+        if (od->move_resident_alt) {
+          if (dir_valid(vol, &od->single_doc_dir))
+            dir_insert(&od->single_doc_key, vol, &od->single_doc_dir);
+          od->move_resident_alt = 0;
+        }
+      }
+      od->first_dir = dir;
+      if (frag_type == CACHE_FRAG_TYPE_HTTP && f.single_fragment) {
+        // fragment is tied to the vector
+        od->move_resident_alt = 1;
+        if (!f.rewrite_resident_alt) {
+          od->single_doc_key = earliest_key;
+        }
+        dir_assign(&od->single_doc_dir, &dir);
+        dir_set_tag(&od->single_doc_dir, od->single_doc_key.word(2));
+      }
+    }
+  }
+Lclose:
+  return openWriteCloseDir(event, e);
+}
+
+int
+CacheVC::openWriteCloseHead(int event, Event *e)
+{
+  cancel_trigger();
+  f.use_first_key = 1;
+  if (io.ok())
+    ink_assert(fragment || (length == (int64_t)total_len));
+  else
+    return openWriteCloseDir(event, e);
+  if (f.data_done)
+    write_len = 0;
+  else
+    write_len = length;
+#ifdef HTTP_CACHE
+  if (frag_type == CACHE_FRAG_TYPE_HTTP) {
+    SET_HANDLER(&CacheVC::updateVector);
+    return updateVector(EVENT_IMMEDIATE, 0);
+  } else {
+#endif
+    header_len = header_to_write_len;
+    SET_HANDLER(&CacheVC::openWriteCloseHeadDone);
+    return do_write_lock();
+#ifdef HTTP_CACHE
+  }
+#endif
+}
+
+int
+CacheVC::openWriteCloseDataDone(int event, Event *e)
+{
+  int ret = 0;
+  cancel_trigger();
+
+  if (event == AIO_EVENT_DONE)
+    set_io_not_in_progress();
+  else if (is_io_in_progress())
+    return EVENT_CONT;
+  if (!io.ok())
+    return openWriteCloseDir(event, e);
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, this_ethread());
+    if (!lock)
+      VC_LOCK_RETRY_EVENT();
+    if (!fragment) {
+      ink_assert(key == earliest_key);
+      earliest_dir = dir;
+#ifdef HTTP_CACHE
+    } else {
+      // Store the offset only if there is a table.
+      // Currently there is no alt (and thence no table) for non-HTTP.
+      if (alternate.valid())
+        alternate.push_frag_offset(write_pos);
+#endif
+    }
+    fragment++;
+    write_pos += write_len;
+    dir_insert(&key, vol, &dir);
+    blocks = iobufferblock_skip(blocks, &offset, &length, write_len);
+    next_CacheKey(&key, &key);
+    if (length) {
+      write_len = length;
+      if (write_len > MAX_FRAG_SIZE)
+        write_len = MAX_FRAG_SIZE;
+      if ((ret = do_write_call()) == EVENT_RETURN)
+        goto Lcallreturn;
+      return ret;
+    }
+    f.data_done = 1;
+    return openWriteCloseHead(event, e); // must be called under vol lock from here
+  }
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0);
+}
+
+int
+CacheVC::openWriteClose(int event, Event *e)
+{
+  cancel_trigger();
+  if (is_io_in_progress()) {
+    if (event != AIO_EVENT_DONE)
+      return EVENT_CONT;
+    set_io_not_in_progress();
+    if (!io.ok())
+      return openWriteCloseDir(event, e);
+  }
+  if (closed > 0
+#ifdef HTTP_CACHE
+                  || f.allow_empty_doc
+#endif
+                  ) {
+    if (total_len == 0) {
+#ifdef HTTP_CACHE
+      if (f.update || f.allow_empty_doc) {
+        return updateVector(event, e);
+      } else {
+        // If we've been CLOSE'd but nothing has been written then
+        // this close is transformed into an abort.
+        closed = -1;
+        return openWriteCloseDir(event, e);
+      }
+#else
+      return openWriteCloseDir(event, e);
+#endif
+    }
+    if (length && (fragment || length > MAX_FRAG_SIZE)) {
+      SET_HANDLER(&CacheVC::openWriteCloseDataDone);
+      write_len = length;
+      if (write_len > MAX_FRAG_SIZE)
+        write_len = MAX_FRAG_SIZE;
+      return do_write_lock_call();
+    } else
+      return openWriteCloseHead(event, e);
+  } else
+    return openWriteCloseDir(event, e);
+}
+
+int
+CacheVC::openWriteWriteDone(int event, Event *e)
+{
+  cancel_trigger();
+  if (event == AIO_EVENT_DONE)
+    set_io_not_in_progress();
+  else
+    if (is_io_in_progress())
+      return EVENT_CONT;
+  // In the event of VC_EVENT_ERROR, the cont must do an io_close
+  if (!io.ok()) {
+    if (closed) {
+      closed = -1;
+      return die();
+    }
+    SET_HANDLER(&CacheVC::openWriteMain);
+    return calluser(VC_EVENT_ERROR);
+  }
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_LOCK_RETRY_EVENT();
+    // store the earliest directory. Need to remove the earliest dir
+    // in case the writer aborts.
+    if (!fragment) {
+      ink_assert(key == earliest_key);
+      earliest_dir = dir;
+#ifdef HTTP_CACHE
+    } else {
+      // Store the offset only if there is a table.
+      // Currently there is no alt (and thence no table) for non-HTTP.
+      if (alternate.valid())
+        alternate.push_frag_offset(write_pos);
+#endif
+    }
+    ++fragment;
+    write_pos += write_len;
+    dir_insert(&key, vol, &dir);
+    DDebug("cache_insert", "WriteDone: %X, %X, %d", key.word(0), first_key.word(0), write_len);
+    blocks = iobufferblock_skip(blocks, &offset, &length, write_len);
+    next_CacheKey(&key, &key);
+  }
+  if (closed)
+    return die();
+  SET_HANDLER(&CacheVC::openWriteMain);
+  return openWriteMain(event, e);
+}
+
+static inline int target_fragment_size() {
+  return cache_config_target_fragment_size - sizeofDoc;
+}
+
+int
+CacheVC::openWriteMain(int /* event ATS_UNUSED */, Event */* e ATS_UNUSED */)
+{
+  cancel_trigger();
+  int called_user = 0;
+  ink_assert(!is_io_in_progress());
+Lagain:
+  if (!vio.buffer.writer()) {
+    if (calluser(VC_EVENT_WRITE_READY) == EVENT_DONE)
+      return EVENT_DONE;
+    if (!vio.buffer.writer())
+      return EVENT_CONT;
+  }
+  if (vio.ntodo() <= 0) {
+    called_user = 1;
+    if (calluser(VC_EVENT_WRITE_COMPLETE) == EVENT_DONE)
+      return EVENT_DONE;
+    ink_assert(!f.close_complete || !"close expected after write COMPLETE");
+    if (vio.ntodo() <= 0)
+      return EVENT_CONT;
+  }
+  int64_t ntodo = (int64_t)(vio.ntodo() + length);
+  int64_t total_avail = vio.buffer.reader()->read_avail();
+  int64_t avail = total_avail;
+  int64_t towrite = avail + length;
+  if (towrite > ntodo) {
+    avail -= (towrite - ntodo);
+    towrite = ntodo;
+  }
+  if (towrite > MAX_FRAG_SIZE) {
+    avail -= (towrite - MAX_FRAG_SIZE);
+    towrite = MAX_FRAG_SIZE;
+  }
+  if (!blocks && towrite) {
+    blocks = vio.buffer.reader()->block;
+    offset = vio.buffer.reader()->start_offset;
+  }
+  if (avail > 0) {
+    vio.buffer.reader()->consume(avail);
+    vio.ndone += avail;
+    total_len += avail;
+  }
+  length = (uint64_t)towrite;
+  if (length > target_fragment_size() && 
+      (length < target_fragment_size() + target_fragment_size() / 4))
+    write_len = target_fragment_size();
+  else
+    write_len = length;
+  bool not_writing = towrite != ntodo && towrite < target_fragment_size();
+  if (!called_user) {
+    if (not_writing) {
+      called_user = 1;
+      if (calluser(VC_EVENT_WRITE_READY) == EVENT_DONE)
+        return EVENT_DONE;
+      goto Lagain;
+    } else if (vio.ntodo() <= 0)
+      goto Lagain;
+  }
+  if (not_writing)
+    return EVENT_CONT;
+  if (towrite == ntodo && f.close_complete) {
+    closed = 1;
+    SET_HANDLER(&CacheVC::openWriteClose);
+    return openWriteClose(EVENT_NONE, NULL);
+  }
+  SET_HANDLER(&CacheVC::openWriteWriteDone);
+  return do_write_lock_call();
+}
+
+// begin overwrite
+int
+CacheVC::openWriteOverwrite(int event, Event *e)
+{
+  cancel_trigger();
+  if (event != AIO_EVENT_DONE) {
+    if (event == EVENT_IMMEDIATE)
+      last_collision = 0;
+  } else {
+    Doc *doc = NULL;
+    set_io_not_in_progress();
+    if (_action.cancelled)
+      return openWriteCloseDir(event, e);
+    if (!io.ok())
+      goto Ldone;
+    doc = (Doc *) buf->data();
+    if (!(doc->first_key == first_key))
+      goto Lcollision;
+    od->first_dir = dir;
+    first_buf = buf;
+    goto Ldone;
+  }
+Lcollision:
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, this_ethread());
+    if (!lock)
+      VC_LOCK_RETRY_EVENT();
+    int res = dir_probe(&first_key, vol, &dir, &last_collision);
+    if (res > 0) {
+      if ((res = do_read_call(&first_key)) == EVENT_RETURN)
+        goto Lcallreturn;
+      return res;
+    }
+  }
+Ldone:
+  SET_HANDLER(&CacheVC::openWriteMain);
+  return callcont(CACHE_EVENT_OPEN_WRITE);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0); // hopefully a tail call
+}
+
+#ifdef HTTP_CACHE
+// openWriteStartDone handles vector read (addition of alternates)
+// and lock misses
+int
+CacheVC::openWriteStartDone(int event, Event *e)
+{
+  intptr_t err = ECACHE_NO_DOC;
+  cancel_trigger();
+  if (is_io_in_progress()) {
+    if (event != AIO_EVENT_DONE)
+      return EVENT_CONT;
+    set_io_not_in_progress();
+  }
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock)
+      VC_LOCK_RETRY_EVENT();
+
+    if (_action.cancelled && (!od || !od->has_multiple_writers()))
+      goto Lcancel;
+
+    if (event == AIO_EVENT_DONE) {        // vector read done
+      Doc *doc = (Doc *) buf->data();
+      if (!io.ok()) {
+        err = ECACHE_READ_FAIL;
+        goto Lfailure;
+      }
+
+      /* INKqa07123.
+         A directory entry which is no longer valid may have been overwritten.
+         We need to start afresh from the beginning by setting last_collision
+         to NULL.
+       */
+      if (!dir_valid(vol, &dir)) {
+        DDebug("cache_write",
+               "OpenReadStartDone: Dir not valid: Write Head: %" PRId64 ", Dir: %" PRId64,
+               (int64_t)offset_to_vol_offset(vol, vol->header->write_pos), dir_offset(&dir));
+        last_collision = NULL;
+        goto Lcollision;
+      }
+      if (!(doc->first_key == first_key))
+        goto Lcollision;
+
+      if (doc->magic != DOC_MAGIC || !doc->hlen ||
+          write_vector->get_handles(doc->hdr(), doc->hlen, buf) != doc->hlen) {
+        err = ECACHE_BAD_META_DATA;
+#if TS_USE_INTERIM_CACHE == 1
+        if (dir_ininterim(&dir)) {
+          dir_delete(&first_key, vol, &dir);
+          last_collision = NULL;
+          goto Lcollision;
+        }
+#endif
+        goto Lfailure;
+      }
+      ink_assert(write_vector->count() > 0);
+#if TS_USE_INTERIM_CACHE == 1
+Lagain:
+      if (dir_ininterim(&dir)) {
+        dir_delete(&first_key, vol, &dir);
+        last_collision = NULL;
+        if (dir_probe(&first_key, vol, &dir, &last_collision)) {
+          goto Lagain;
+        } else {
+          if (f.update) {
+            // fail update because vector has been GC'd
+            goto Lfailure;
+          }
+        }
+      }
+#endif
+      od->first_dir = dir;
+      first_dir = dir;
+      if (doc->single_fragment()) {
+        // fragment is tied to the vector
+        od->move_resident_alt = 1;
+        od->single_doc_key = doc->key;
+        dir_assign(&od->single_doc_dir, &dir);
+        dir_set_tag(&od->single_doc_dir, od->single_doc_key.word(2));
+      }
+      first_buf = buf;
+      goto Lsuccess;
+    }
+
+Lcollision:
+    int if_writers = ((uintptr_t) info == CACHE_ALLOW_MULTIPLE_WRITES);
+    if (!od) {
+      if ((err = vol->open_write(
+                this, if_writers, cache_config_http_max_alts > 1 ? cache_config_http_max_alts : 0)) > 0)
+        goto Lfailure;
+      if (od->has_multiple_writers()) {
+        MUTEX_RELEASE(lock);
+        SET_HANDLER(&CacheVC::openWriteMain);
+        return callcont(CACHE_EVENT_OPEN_WRITE);
+      }
+    }
+    // check for collision
+    if (dir_probe(&first_key, vol, &dir, &last_collision)) {
+      od->reading_vec = 1;
+      int ret = do_read_call(&first_key);
+      if (ret == EVENT_RETURN)
+        goto Lcallreturn;
+      return ret;
+    }
+    if (f.update) {
+      // fail update because vector has been GC'd
+      goto Lfailure;
+    }
+  }
+Lsuccess:
+  od->reading_vec = 0;
+  if (_action.cancelled)
+    goto Lcancel;
+  SET_HANDLER(&CacheVC::openWriteMain);
+  return callcont(CACHE_EVENT_OPEN_WRITE);
+
+Lfailure:
+  CACHE_INCREMENT_DYN_STAT(base_stat + CACHE_STAT_FAILURE);
+  _action.continuation->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -err);
+Lcancel:
+  if (od) {
+    od->reading_vec = 0;
+    return openWriteCloseDir(event, e);
+  } else
+    return free_CacheVC(this);
+Lcallreturn:
+  return handleEvent(AIO_EVENT_DONE, 0); // hopefully a tail call
+}
+#endif
+
+// handle lock failures from main Cache::open_write entry points below
+int
+CacheVC::openWriteStartBegin(int /* event ATS_UNUSED */, Event */* e ATS_UNUSED */)
+{
+  intptr_t err;
+  cancel_trigger();
+  if (_action.cancelled)
+    return free_CacheVC(this);
+  if (((err = vol->open_write_lock(this, false, 1)) > 0)) {
+    CACHE_INCREMENT_DYN_STAT(base_stat + CACHE_STAT_FAILURE);
+    free_CacheVC(this);
+    _action.continuation->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -err);
+    return EVENT_DONE;
+  }
+  if (err < 0)
+    VC_SCHED_LOCK_RETRY();
+  if (f.overwrite) {
+    SET_HANDLER(&CacheVC::openWriteOverwrite);
+    return openWriteOverwrite(EVENT_IMMEDIATE, 0);
+  } else {
+    // write by key
+    SET_HANDLER(&CacheVC::openWriteMain);
+    return callcont(CACHE_EVENT_OPEN_WRITE);
+  }
+}
+
+// main entry point for writing of of non-http documents
+Action *
+Cache::open_write(Continuation *cont, CacheKey *key, CacheFragType frag_type,
+                  int options, time_t apin_in_cache, char *hostname, int host_len)
+{
+
+  if (!CacheProcessor::IsCacheReady(frag_type)) {
+    cont->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -ECACHE_NOT_READY);
+    return ACTION_RESULT_DONE;
+  }
+
+  ink_assert(caches[frag_type] == this);
+
+  intptr_t res = 0;
+  CacheVC *c = new_CacheVC(cont);
+  ProxyMutex *mutex = cont->mutex;
+  MUTEX_LOCK(lock, c->mutex, this_ethread());
+  c->vio.op = VIO::WRITE;
+  c->base_stat = cache_write_active_stat;
+  c->vol = key_to_vol(key, hostname, host_len);
+  Vol *vol = c->vol;
+  CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+  c->first_key = c->key = *key;
+  c->frag_type = frag_type;
+  /*
+     The transition from single fragment document to a multi-fragment document
+     would cause a problem if the key and the first_key collide. In case of
+     a collision, old vector data could be served to HTTP. Need to avoid that.
+     Also, when evacuating a fragment, we have to decide if its the first_key
+     or the earliest_key based on the dir_tag.
+   */
+  do {
+    rand_CacheKey(&c->key, cont->mutex);
+  } while (DIR_MASK_TAG(c->key.word(2)) == DIR_MASK_TAG(c->first_key.word(2)));
+  c->earliest_key = c->key;
+#ifdef HTTP_CACHE
+  c->info = 0;
+#endif
+  c->f.overwrite = (options & CACHE_WRITE_OPT_OVERWRITE) != 0;
+  c->f.close_complete = (options & CACHE_WRITE_OPT_CLOSE_COMPLETE) != 0;
+  c->f.sync = (options & CACHE_WRITE_OPT_SYNC) == CACHE_WRITE_OPT_SYNC;
+  c->pin_in_cache = (uint32_t) apin_in_cache;
+
+  if ((res = c->vol->open_write_lock(c, false, 1)) > 0) {
+    // document currently being written, abort
+    CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_FAILURE);
+    cont->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -res);
+    free_CacheVC(c);
+    return ACTION_RESULT_DONE;
+  }
+  if (res < 0) {
+    SET_CONTINUATION_HANDLER(c, &CacheVC::openWriteStartBegin);
+    c->trigger = CONT_SCHED_LOCK_RETRY(c);
+    return &c->_action;
+  }
+  if (!c->f.overwrite) {
+    SET_CONTINUATION_HANDLER(c, &CacheVC::openWriteMain);
+    c->callcont(CACHE_EVENT_OPEN_WRITE);
+    return ACTION_RESULT_DONE;
+  } else {
+    SET_CONTINUATION_HANDLER(c, &CacheVC::openWriteOverwrite);
+    if (c->openWriteOverwrite(EVENT_IMMEDIATE, 0) == EVENT_DONE)
+      return ACTION_RESULT_DONE;
+    else
+      return &c->_action;
+  }
+}
+
+#ifdef HTTP_CACHE
+// main entry point for writing of http documents
+Action *
+Cache::open_write(Continuation *cont, CacheKey *key, CacheHTTPInfo *info, time_t apin_in_cache,
+                  CacheKey */* key1 ATS_UNUSED */, CacheFragType type, char *hostname, int host_len)
+{
+  if (!CacheProcessor::IsCacheReady(type)) {
+    cont->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -ECACHE_NOT_READY);
+    return ACTION_RESULT_DONE;
+  }
+
+  ink_assert(caches[type] == this);
+  intptr_t err = 0;
+  int if_writers = (uintptr_t) info == CACHE_ALLOW_MULTIPLE_WRITES;
+  CacheVC *c = new_CacheVC(cont);
+  ProxyMutex *mutex = cont->mutex;
+  c->vio.op = VIO::WRITE;
+  c->first_key = *key;
+  /*
+     The transition from single fragment document to a multi-fragment document
+     would cause a problem if the key and the first_key collide. In case of
+     a collision, old vector data could be served to HTTP. Need to avoid that.
+     Also, when evacuating a fragment, we have to decide if its the first_key
+     or the earliest_key based on the dir_tag.
+   */
+  do {
+    rand_CacheKey(&c->key, cont->mutex);
+  }
+  while (DIR_MASK_TAG(c->key.word(2)) == DIR_MASK_TAG(c->first_key.word(2)));
+  c->earliest_key = c->key;
+  c->frag_type = CACHE_FRAG_TYPE_HTTP;
+  c->vol = key_to_vol(key, hostname, host_len);
+  Vol *vol = c->vol;
+  c->info = info;
+  if (c->info && (uintptr_t) info != CACHE_ALLOW_MULTIPLE_WRITES) {
+    /*
+       Update has the following code paths :
+       a) Update alternate header only :
+       In this case the vector has to be rewritten. The content
+       length(update_len) and the key for the document are set in the
+       new_info in the set_http_info call.
+       HTTP OPERATIONS
+       open_write with info set
+       set_http_info new_info
+       (total_len == 0)
+       close
+       b) Update alternate and data
+       In this case both the vector and the data needs to be rewritten.
+       This case is similar to the standard write of a document case except
+       that the new_info is inserted into the vector at the alternate_index
+       (overwriting the old alternate) rather than the end of the vector.
+       HTTP OPERATIONS
+       open_write with info set
+       set_http_info new_info
+       do_io_write =>  (total_len > 0)
+       close
+       c) Delete an alternate
+       The vector may need to be deleted (if there was only one alternate) or
+       rewritten (if there were more than one alternate). The deletion of the
+       vector is done in openWriteRemoveVector.
+       HTTP OPERATIONS
+       open_write with info set
+       close
+     */
+    c->f.update = 1;
+    c->base_stat = cache_update_active_stat;
+    DDebug("cache_update", "Update called");
+    info->object_key_get(&c->update_key);
+    ink_assert(!(c->update_key == zero_key));
+    c->update_len = info->object_size_get();
+  } else
+    c->base_stat = cache_write_active_stat;
+  CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_ACTIVE);
+  c->pin_in_cache = (uint32_t) apin_in_cache;
+
+  {
+    CACHE_TRY_LOCK(lock, c->vol->mutex, cont->mutex->thread_holding);
+    if (lock) {
+      if ((err = c->vol->open_write(c, if_writers,
+                                     cache_config_http_max_alts > 1 ? cache_config_http_max_alts : 0)) > 0)
+        goto Lfailure;
+      // If there are multiple writers, then this one cannot be an update.
+      // Only the first writer can do an update. If that's the case, we can
+      // return success to the state machine now.;
+      if (c->od->has_multiple_writers())
+        goto Lmiss;
+      if (!dir_probe(key, c->vol, &c->dir, &c->last_collision)) {
+        if (c->f.update) {
+          // fail update because vector has been GC'd
+          // This situation can also arise in openWriteStartDone
+          err = ECACHE_NO_DOC;
+          goto Lfailure;
+        }
+        // document doesn't exist, begin write
+        goto Lmiss;
+      } else {
+        c->od->reading_vec = 1;
+        // document exists, read vector
+        SET_CONTINUATION_HANDLER(c, &CacheVC::openWriteStartDone);
+        switch (c->do_read_call(&c->first_key)) {
+          case EVENT_DONE: return ACTION_RESULT_DONE;
+          case EVENT_RETURN: goto Lcallreturn;
+          default: return &c->_action;
+        }
+      }
+    }
+    // missed lock
+    SET_CONTINUATION_HANDLER(c, &CacheVC::openWriteStartDone);
+    CONT_SCHED_LOCK_RETRY(c);
+    return &c->_action;
+  }
+
+Lmiss:
+  SET_CONTINUATION_HANDLER(c, &CacheVC::openWriteMain);
+  c->callcont(CACHE_EVENT_OPEN_WRITE);
+  return ACTION_RESULT_DONE;
+
+Lfailure:
+  CACHE_INCREMENT_DYN_STAT(c->base_stat + CACHE_STAT_FAILURE);
+  cont->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -err);
+  if (c->od) {
+    c->openWriteCloseDir(EVENT_IMMEDIATE, 0);
+    return ACTION_RESULT_DONE;
+  }
+  free_CacheVC(c);
+  return ACTION_RESULT_DONE;
+
+Lcallreturn:
+  if (c->handleEvent(AIO_EVENT_DONE, 0) == EVENT_DONE)
+    return ACTION_RESULT_DONE;
+  return &c->_action;
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+int
+InterimCacheVol::aggWrite(int /* event ATS_UNUSED */, void * /* ATS_UNUSED e */)
+{
+  ink_assert(!is_io_in_progress());
+  MigrateToInterimCache *mts;
+  Doc *doc;
+  uint64_t old_off, new_off;
+  ink_assert(this_ethread() == mutex.m_ptr->thread_holding
+      && vol->mutex.m_ptr == mutex.m_ptr);
+Lagain:
+
+  while ((mts = agg.head) != NULL) {
+    doc = (Doc *) mts->buf->data();
+    uint32_t agg_len = dir_approx_size(&mts->dir);
+    ink_assert(agg_len == mts->agg_len);
+    ink_assert(agg_len <= AGG_SIZE && agg_buf_pos <= AGG_SIZE);
+
+    if (agg_buf_pos + agg_len > AGG_SIZE
+        || header->agg_pos + agg_len > (skip + len))
+      break;
+    mts = agg.dequeue();
+
+    if (!mts->notMigrate) {
+      old_off = dir_get_offset(&mts->dir);
+      Dir old_dir = mts->dir;
+      doc->sync_serial = header->sync_serial;
+      doc->write_serial = header->write_serial;
+
+      memcpy(agg_buffer + agg_buf_pos, doc, doc->len);
+      off_t o = header->write_pos + agg_buf_pos;
+      dir_set_offset(&mts->dir, offset_to_vol_offset(this, o));
+      ink_assert(this == mts->interim_vol);
+      ink_assert(vol_offset(this, &mts->dir) < mts->interim_vol->skip + mts->interim_vol->len);
+      dir_set_phase(&mts->dir, header->phase);
+      dir_set_ininterim(&mts->dir);
+      dir_set_index(&mts->dir, (this - vol->interim_vols));
+
+      agg_buf_pos += agg_len;
+      header->agg_pos = header->write_pos + agg_buf_pos;
+      new_off = dir_get_offset(&mts->dir);
+
+      if (mts->rewrite)
+        dir_overwrite(&mts->key, vol, &mts->dir, &old_dir);
+      else
+        dir_insert(&mts->key, vol, &mts->dir);
+      DDebug("cache_insert", "InterimCache: WriteDone: key: %X, first_key: %X, write_len: %d, write_offset: %" PRId64 ", dir_last_word: %X",
+          doc->key.word(0), doc->first_key.word(0), mts->agg_len, o, mts->dir.w[4]);
+
+      if (mts->copy) {
+        mts->interim_vol->vol->ram_cache->fixup(&mts->key, (uint32_t)(old_off >> 32), (uint32_t)old_off,
+            (uint32_t)(new_off >> 32), (uint32_t)new_off);
+      } else {
+        mts->vc->f.ram_fixup = 1;
+        mts->vc->dir_off = new_off;
+      }
+      vol->set_migrate_done(mts);
+    } else
+      vol->set_migrate_failed(mts);
+
+    mts->buf = NULL;
+    migrateToInterimCacheAllocator.free(mts);
+  }
+
+  if (!agg_buf_pos) {
+    if (header->write_pos + AGG_SIZE > (skip + len)) {
+      header->write_pos = start;
+      header->phase = !(header->phase);
+
+      header->cycle++;
+      header->agg_pos = header->write_pos;
+      dir_clean_interimvol(this);
+      goto Lagain;
+    }
+    return EVENT_CONT;
+  }
+
+  if (agg.head == NULL && agg_buf_pos < (AGG_SIZE / 2) && !sync
+      && header->write_pos + AGG_SIZE <= (skip + len))
+    return EVENT_CONT;
+
+  for (mts = agg.head; mts != NULL; mts = mts->link.next) {
+    if (!mts->copy) {
+      Ptr<IOBufferData> buf = mts->buf;
+      doc = (Doc *) buf->data();
+      mts->buf = new_IOBufferData(iobuffer_size_to_index(mts->agg_len, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+      mts->copy = true;
+      memcpy(mts->buf->data(), buf->data(), doc->len);
+      buf = NULL;
+    }
+  }
+  // set write limit
+
+  io.aiocb.aio_fildes = fd;
+  io.aiocb.aio_offset = header->write_pos;
+  io.aiocb.aio_buf = agg_buffer;
+  io.aiocb.aio_nbytes = agg_buf_pos;
+  io.action = this;
+  /*
+    Callback on AIO thread so that we can issue a new write ASAP
+    as all writes are serialized in the volume.  This is not necessary
+    for reads proceed independently.
+   */
+  io.thread = AIO_CALLBACK_THREAD_AIO;
+  SET_HANDLER(&InterimCacheVol::aggWriteDone);
+  ink_aio_write(&io);
+  return EVENT_CONT;
+}
+
+int
+InterimCacheVol::aggWriteDone(int event, void *e)
+{
+  ink_release_assert(this_ethread() == mutex.m_ptr->thread_holding
+        && vol->mutex.m_ptr == mutex.m_ptr);
+  if (io.ok()) {
+     header->last_write_pos = header->write_pos;
+     header->write_pos += io.aiocb.aio_nbytes;
+     ink_assert(header->write_pos >= start);
+     DDebug("cache_agg", "Write: %" PRIu64 ", last Write: %" PRIu64 "\n",
+           header->write_pos, header->last_write_pos);
+     ink_assert(header->write_pos == header->agg_pos);
+     agg_buf_pos = 0;
+     header->write_serial++;
+   } else {
+     // delete all the directory entries that we inserted
+     // for fragments is this aggregation buffer
+     Debug("cache_disk_error", "Write error on disk %s\n \
+               write range : [%" PRIu64 " - %" PRIu64 " bytes]  [%" PRIu64 " - %" PRIu64 " blocks] \n",
+           "InterimCache ID", (uint64_t)io.aiocb.aio_offset, (uint64_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes),
+           (uint64_t)io.aiocb.aio_offset / CACHE_BLOCK_SIZE,
+           (uint64_t)(io.aiocb.aio_offset + io.aiocb.aio_nbytes) / CACHE_BLOCK_SIZE);
+     Dir del_dir;
+     dir_clear(&del_dir);
+     dir_set_ininterim(&del_dir);
+     dir_set_index(&del_dir, (this - vol->interim_vols));
+     for (int done = 0; done < agg_buf_pos;) {
+       Doc *doc = (Doc *) (agg_buffer + done);
+       dir_set_offset(&del_dir, header->write_pos + done);
+       dir_delete(&doc->key, vol, &del_dir);
+       done += this->round_to_approx_size(doc->len);
+     }
+     agg_buf_pos = 0;
+   }
+   set_io_not_in_progress();
+   sync = false;
+   if (agg.head)
+     aggWrite(event, e);
+   return EVENT_CONT;
+}
+#endif
+#endif
diff --git a/iocore/cache/I_Cache.h b/iocore/cache/I_Cache.h
new file mode 100644
index 00000000..5a84f0f9
--- /dev/null
+++ b/iocore/cache/I_Cache.h
@@ -0,0 +1,238 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_CACHE_H__
+#define _I_CACHE_H__
+
+#include "libts.h"
+#include "I_EventSystem.h"
+#include "I_AIO.h"
+#include "I_CacheDefs.h"
+#include "I_Store.h"
+
+#define CACHE_MODULE_MAJOR_VERSION 1
+#define CACHE_MODULE_MINOR_VERSION 0
+#define CACHE_MODULE_VERSION       makeModuleVersion(CACHE_MODULE_MAJOR_VERSION,\
+						   CACHE_MODULE_MINOR_VERSION,\
+						   PUBLIC_MODULE_HEADER)
+
+#define CACHE_WRITE_OPT_OVERWRITE       0x0001
+#define CACHE_WRITE_OPT_CLOSE_COMPLETE  0x0002
+#define CACHE_WRITE_OPT_SYNC            (CACHE_WRITE_OPT_CLOSE_COMPLETE | 0x0004)
+#define CACHE_WRITE_OPT_OVERWRITE_SYNC  (CACHE_WRITE_OPT_SYNC | CACHE_WRITE_OPT_OVERWRITE)
+
+#define SCAN_KB_PER_SECOND      8192 // 1TB/8MB = 131072 = 36 HOURS to scan a TB
+
+#define RAM_CACHE_ALGORITHM_CLFUS        0
+#define RAM_CACHE_ALGORITHM_LRU          1
+
+#define CACHE_COMPRESSION_NONE           0
+#define CACHE_COMPRESSION_FASTLZ         1
+#define CACHE_COMPRESSION_LIBZ           2
+#define CACHE_COMPRESSION_LIBLZMA        3
+
+struct CacheVC;
+struct CacheDisk;
+#ifdef HTTP_CACHE
+class CacheLookupHttpConfig;
+class URL;
+class HTTPHdr;
+class HTTPInfo;
+
+typedef HTTPHdr CacheHTTPHdr;
+typedef URL CacheURL;
+typedef HTTPInfo CacheHTTPInfo;
+#endif
+
+struct CacheProcessor:public Processor
+{
+  CacheProcessor()
+    : cb_after_init(0)
+  {}
+
+  virtual int start(int n_cache_threads = 0, size_t stacksize = DEFAULT_STACKSIZE);
+  virtual int start_internal(int flags = 0);
+  void stop();
+
+  int dir_check(bool fix);
+  int db_check(bool fix);
+
+  inkcoreapi Action *lookup(Continuation *cont, CacheKey *key, bool cluster_cache_local,
+                            bool local_only = false,
+                            CacheFragType frag_type = CACHE_FRAG_TYPE_NONE, char *hostname = 0, int host_len = 0);
+  inkcoreapi Action *open_read(Continuation *cont, CacheKey *key, bool cluster_cache_local,
+                               CacheFragType frag_type = CACHE_FRAG_TYPE_NONE, char *hostname = 0, int host_len = 0);
+  Action *open_read_buffer(Continuation *cont, MIOBuffer *buf, CacheKey *key,
+                           CacheFragType frag_type = CACHE_FRAG_TYPE_NONE, char *hostname = 0, int host_len = 0);
+
+  inkcoreapi Action *open_write(Continuation *cont,
+                                CacheKey *key,
+                                bool cluster_cache_local,
+                                CacheFragType frag_type = CACHE_FRAG_TYPE_NONE,
+                                int expected_size = CACHE_EXPECTED_SIZE,
+                                int options = 0,
+                                time_t pin_in_cache = (time_t) 0,
+                                char *hostname = 0, int host_len = 0);
+  Action *open_write_buffer(Continuation *cont, MIOBuffer *buf,
+                            CacheKey *key,
+                            CacheFragType frag_type = CACHE_FRAG_TYPE_NONE,
+                            int options = 0,
+                            time_t pin_in_cache = (time_t) 0,
+                            char *hostname = 0, int host_len = 0);
+  inkcoreapi Action *remove(Continuation *cont, CacheKey *key,
+                            bool cluster_cache_local,
+                            CacheFragType frag_type = CACHE_FRAG_TYPE_NONE,
+                            bool rm_user_agents = true, bool rm_link = false,
+                            char *hostname = 0, int host_len = 0);
+  Action *scan(Continuation *cont, char *hostname = 0, int host_len = 0, int KB_per_second = SCAN_KB_PER_SECOND);
+#ifdef HTTP_CACHE
+  Action *lookup(Continuation *cont, URL *url, bool cluster_cache_local, bool local_only = false,
+                 CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP);
+  inkcoreapi Action *open_read(Continuation *cont, URL *url,
+                               bool cluster_cache_local,
+                               CacheHTTPHdr *request,
+                               CacheLookupHttpConfig *params,
+                               time_t pin_in_cache = (time_t) 0, CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP);
+  Action *open_read_buffer(Continuation *cont, MIOBuffer *buf, URL *url,
+                           CacheHTTPHdr *request,
+                           CacheLookupHttpConfig *params, CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP);
+  Action *open_write(Continuation *cont, int expected_size, URL *url, bool cluster_cache_local,
+                     CacheHTTPHdr *request, CacheHTTPInfo *old_info,
+                     time_t pin_in_cache = (time_t) 0, CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP);
+  Action *open_write_buffer(Continuation *cont, MIOBuffer *buf, URL *url,
+                            CacheHTTPHdr *request, CacheHTTPHdr *response,
+                            CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP);
+  Action *remove(Continuation *cont, URL *url, bool cluster_cache_local, CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP);
+
+  Action *open_read_internal(int, Continuation *, MIOBuffer *, CacheURL *,
+                             CacheHTTPHdr *, CacheLookupHttpConfig *,
+                             CacheKey *, time_t, CacheFragType type, char *hostname, int host_len);
+#endif
+  Action *link(Continuation *cont, CacheKey *from, CacheKey *to, bool cluster_cache_local,
+               CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP, char *hostname = 0, int host_len = 0);
+
+  Action *deref(Continuation *cont, CacheKey *key, bool cluster_cache_local,
+                CacheFragType frag_type = CACHE_FRAG_TYPE_HTTP, char *hostname = 0, int host_len = 0);
+
+  /** Mark physical disk/device/file as offline.
+      All stripes for this device are disabled.
+
+      @return @c true if there are any storage devices remaining online, @c false if not.
+
+      @note This is what is called if a disk is disabled due to I/O errors.
+  */
+  bool mark_storage_offline(CacheDisk* d);
+
+  /** Find the storage for a @a path.
+      If @a len is 0 then @a path is presumed null terminated.
+      @return @c NULL if the path does not match any defined storage.
+   */
+  CacheDisk* find_by_path(char const* path, int len = 0);
+
+  /** Check if there are any online storage devices.
+      If this returns @c false then the cache should be disabled as there is no storage available.
+  */
+  bool has_online_storage() const;
+
+  static int IsCacheEnabled();
+
+  static bool IsCacheReady(CacheFragType type);
+
+  /// Type for callback function.
+  typedef void (*CALLBACK_FUNC)();
+  /** Lifecycle callback.
+
+      The function @a cb is called after cache initialization has
+      finished and the cache is ready or has failed.
+
+      @internal If we need more lifecycle callbacks, this should be
+      generalized ala the standard hooks style, with a type enum used
+      to specific the callback type and passed to the callback
+      function.
+  */
+  void set_after_init_callback(CALLBACK_FUNC cb);
+
+  // private members
+  void diskInitialized();
+
+  void cacheInitialized();
+
+  static volatile uint32_t cache_ready;
+  static volatile int initialized;
+  static volatile int start_done;
+  static int clear;
+  static int fix;
+  static int start_internal_flags;
+  static int auto_clear_flag;
+  CALLBACK_FUNC cb_after_init;
+};
+
+inline void
+CacheProcessor::set_after_init_callback(CALLBACK_FUNC cb)
+{
+  cb_after_init = cb;
+}
+
+struct CacheVConnection:public VConnection
+{
+  VIO *do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf) = 0;
+  virtual VIO *do_io_pread(Continuation *c, int64_t nbytes, MIOBuffer *buf, int64_t offset) = 0;
+  VIO *do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner = false) = 0;
+  void do_io_close(int lerrno = -1) = 0;
+  void reenable(VIO *avio) = 0;
+  void reenable_re(VIO *avio) = 0;
+  void do_io_shutdown(ShutdownHowTo_t howto)
+  {
+    (void) howto;
+    ink_assert(!"CacheVConnection::do_io_shutdown unsupported");
+  }
+
+  virtual int get_header(void **ptr, int *len) = 0;
+  virtual int set_header(void *ptr, int len) = 0;
+  virtual int get_single_data(void **ptr, int *len) = 0;
+
+#ifdef HTTP_CACHE
+  virtual void set_http_info(CacheHTTPInfo *info) = 0;
+  virtual void get_http_info(CacheHTTPInfo **info) = 0;
+#endif
+
+  virtual bool is_ram_cache_hit() const = 0;
+  virtual bool set_disk_io_priority(int priority) = 0;
+  virtual int get_disk_io_priority() = 0;
+  virtual bool set_pin_in_cache(time_t t) = 0;
+  virtual time_t get_pin_in_cache() = 0;
+  virtual int64_t get_object_size() = 0;
+  
+  /** Test if the VC can support pread.
+      @return @c true if @c do_io_pread will work, @c false if not.
+  */
+  virtual bool is_pread_capable() = 0;
+
+  CacheVConnection();
+};
+
+void ink_cache_init(ModuleVersion version);
+extern inkcoreapi CacheProcessor cacheProcessor;
+extern Continuation *cacheRegexDeleteCont;
+
+#endif /* _I_CACHE_H__ */
diff --git a/iocore/cache/I_CacheDefs.h b/iocore/cache/I_CacheDefs.h
new file mode 100644
index 00000000..1bf39976
--- /dev/null
+++ b/iocore/cache/I_CacheDefs.h
@@ -0,0 +1,133 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef _I_CACHE_DEFS_H__
+#define _I_CACHE_DEFS_H__
+
+#define CACHE_INIT_FAILED           -1
+#define CACHE_INITIALIZING          0
+#define CACHE_INITIALIZED           1
+
+#define CACHE_ALT_INDEX_DEFAULT     -1
+#define CACHE_ALT_REMOVED           -2
+
+#define CACHE_DB_MAJOR_VERSION      23
+#define CACHE_DB_MINOR_VERSION      2
+
+#define CACHE_DIR_MAJOR_VERSION     18
+#define CACHE_DIR_MINOR_VERSION     0
+
+#define CACHE_DB_FDS                128
+
+// opcodes
+#define CACHE_OPEN_READ			1
+#define CACHE_OPEN_READ_BUFFER		2
+#define CACHE_OPEN_READ_LONG		3
+#define CACHE_OPEN_READ_BUFFER_LONG	4
+#define CACHE_OPEN_WRITE		5
+#define CACHE_OPEN_WRITE_BUFFER		6
+#define CACHE_OPEN_WRITE_LONG		7
+#define CACHE_OPEN_WRITE_BUFFER_LONG	8
+#define CACHE_UPDATE			9
+#define CACHE_REMOVE			10
+#define CACHE_LINK			11
+#define CACHE_DEREF			12
+#define CACHE_LOOKUP_OP			13
+
+enum CacheType {
+  CACHE_NONE_TYPE = 0,  // for empty disk fragments
+  CACHE_HTTP_TYPE = 1,
+  CACHE_RTSP_TYPE = 2
+};
+
+// NOTE: All the failures are ODD, and one greater than the success
+//       Some of these must match those in <ts/ts.h>
+enum CacheEventType
+{
+  CACHE_EVENT_LOOKUP = CACHE_EVENT_EVENTS_START + 0,
+  CACHE_EVENT_LOOKUP_FAILED = CACHE_EVENT_EVENTS_START + 1,
+  CACHE_EVENT_OPEN_READ = CACHE_EVENT_EVENTS_START + 2,
+  CACHE_EVENT_OPEN_READ_FAILED = CACHE_EVENT_EVENTS_START + 3,
+  // 4-7 unused
+  CACHE_EVENT_OPEN_WRITE = CACHE_EVENT_EVENTS_START + 8,
+  CACHE_EVENT_OPEN_WRITE_FAILED = CACHE_EVENT_EVENTS_START + 9,
+  CACHE_EVENT_REMOVE = CACHE_EVENT_EVENTS_START + 12,
+  CACHE_EVENT_REMOVE_FAILED = CACHE_EVENT_EVENTS_START + 13,
+  CACHE_EVENT_UPDATE,
+  CACHE_EVENT_UPDATE_FAILED,
+  CACHE_EVENT_LINK,
+  CACHE_EVENT_LINK_FAILED,
+  CACHE_EVENT_DEREF,
+  CACHE_EVENT_DEREF_FAILED,
+  CACHE_EVENT_SCAN = CACHE_EVENT_EVENTS_START + 20,
+  CACHE_EVENT_SCAN_FAILED = CACHE_EVENT_EVENTS_START + 21,
+  CACHE_EVENT_SCAN_OBJECT = CACHE_EVENT_EVENTS_START + 22,
+  CACHE_EVENT_SCAN_OPERATION_BLOCKED = CACHE_EVENT_EVENTS_START + 23,
+  CACHE_EVENT_SCAN_OPERATION_FAILED = CACHE_EVENT_EVENTS_START + 24,
+  CACHE_EVENT_SCAN_DONE = CACHE_EVENT_EVENTS_START + 25,
+  //////////////////////////
+  // Internal error codes //
+  //////////////////////////
+  CACHE_EVENT_RESPONSE = CACHE_EVENT_EVENTS_START + 50,
+  CACHE_EVENT_RESPONSE_MSG,
+  CACHE_EVENT_RESPONSE_RETRY
+};
+
+enum CacheScanResult
+{
+  CACHE_SCAN_RESULT_CONTINUE = EVENT_CONT,
+  CACHE_SCAN_RESULT_DONE = EVENT_DONE,
+  CACHE_SCAN_RESULT_DELETE = 10,
+  CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES,
+  CACHE_SCAN_RESULT_UPDATE,
+  CACHE_SCAN_RESULT_RETRY
+};
+
+enum CacheDataType
+{
+  CACHE_DATA_HTTP_INFO = VCONNECTION_CACHE_DATA_BASE,
+  CACHE_DATA_KEY,
+  CACHE_DATA_RAM_CACHE_HIT_FLAG
+};
+
+enum CacheFragType
+{
+  CACHE_FRAG_TYPE_NONE,
+  CACHE_FRAG_TYPE_HTTP,
+  CACHE_FRAG_TYPE_RTSP,
+  NUM_CACHE_FRAG_TYPES
+};
+
+#define CacheKey INK_MD5
+#define CACHE_ALLOW_MULTIPLE_WRITES 1
+#define CACHE_EXPECTED_SIZE 32768
+
+/* uses of the CacheKey
+   word(0) - cache partition segment
+   word(1) - cache partition bucket
+   word(2) - tag (lower bits), hosttable hash (upper bits)
+   word(3) - ram cache hash, lookaside cache
+ */
+#endif // __CACHE_DEFS_H__
diff --git a/iocore/cache/I_Store.h b/iocore/cache/I_Store.h
new file mode 100644
index 00000000..ba556575
--- /dev/null
+++ b/iocore/cache/I_Store.h
@@ -0,0 +1,201 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Store.h
+
+
+ ****************************************************************************/
+
+#ifndef _Store_h_
+#define _Store_h_
+
+#include "libts.h"
+
+#define STORE_BLOCK_SIZE       8192
+#define STORE_BLOCK_SHIFT      13
+#define DEFAULT_HW_SECTOR_SIZE 512
+
+//
+// A Store is a place to store data.
+// Those on the same disk should be in a linked list.
+//
+struct Span
+{
+  char *pathname;
+  int64_t blocks;
+  int hw_sector_size;
+  bool file_pathname;           // the pathname is a file
+  bool isRaw;
+  int64_t offset;                 // used only if (file == true)
+  int alignment;
+  int disk_id;
+  int vol_num;
+  LINK(Span, link);
+
+private:
+    bool is_mmapable_internal;
+public:
+  bool is_mmapable() { return is_mmapable_internal; }
+  void set_mmapable(bool s) { is_mmapable_internal = s; }
+  int64_t size() { return blocks * STORE_BLOCK_SIZE; }
+
+  int64_t total_blocks() {
+    if (link.next) {
+      return blocks + link.next->total_blocks();
+    } else {
+      return blocks;
+    }
+  }
+
+  Span *nth(int i) {
+    Span *x = this;
+    while (x && i--)
+      x = x->link.next;
+    return x;
+  }
+
+  int paths() {
+    int i = 0;
+    for (Span * x = this; x; i++, x = x->link.next);
+    return i;
+  }
+  int write(int fd);
+  int read(int fd);
+
+  Span *dup();
+  int64_t end() { return offset + blocks; }
+
+  const char *init(char *n, int64_t size);
+
+  // 0 on success -1 on failure
+  int path(char *filename,      // for non-file, the filename in the director
+           int64_t * offset,      // for file, start offset (unsupported)
+           char *buf, int buflen);      // where to store the path
+
+  Span()
+    : pathname(NULL), blocks(0), hw_sector_size(DEFAULT_HW_SECTOR_SIZE), file_pathname(false),
+      isRaw(true), offset(0), alignment(0), disk_id(0), is_mmapable_internal(false)
+  { }
+  ~Span();
+};
+
+struct Store
+{
+  //
+  // Public Interface
+  // Thread-safe operations
+  //
+
+  // spread evenly on all disks
+  void spread_alloc(Store & s, unsigned int blocks, bool mmapable = true);
+  void alloc(Store & s, unsigned int blocks, bool only_one = false, bool mmapable = true);
+
+  Span *alloc_one(unsigned int blocks, bool mmapable) {
+    Store s;
+      alloc(s, blocks, true, mmapable);
+    if (s.n_disks)
+    {
+      Span *t = s.disk[0];
+        s.disk[0] = NULL;
+        return t;
+    } else
+        return NULL;
+  }
+  // try to allocate, return (s == gotten, diff == not gotten)
+  void try_realloc(Store & s, Store & diff);
+
+  // free back the contents of a store.
+  // must have been JUST allocated (no intervening allocs/frees)
+  void free(Store & s);
+  void add(Span * s);
+  void add(Store & s);
+  void dup(Store & s);
+  void sort();
+  void extend(unsigned i)
+  {
+    if (i > n_disks) {
+      disk = (Span **)ats_realloc(disk, i * sizeof(Span *));
+      for (unsigned j = n_disks; j < i; j++) {
+        disk[j] = NULL;
+      }
+      n_disks = i;
+    }
+  }
+
+  // Non Thread-safe operations
+  unsigned int total_blocks(unsigned after = 0) {
+    int64_t t = 0;
+    for (unsigned i = after; i < n_disks; i++) {
+      if (disk[i]) {
+        t += disk[i]->total_blocks();
+      }
+    }
+    return (unsigned int) t;
+  }
+  // 0 on success -1 on failure
+  // these operations are NOT thread-safe
+  //
+  int write(int fd, char *name);
+  int read(int fd, char *name);
+  int clear(char *filename, bool clear_dirs = true);
+  void normalize();
+  void delete_all();
+  int remove(char *pathname);
+  Store();
+  ~Store();
+
+  unsigned n_disks;
+  Span **disk;
+#if TS_USE_INTERIM_CACHE == 1
+  int n_interim_disks;
+  Span **interim_disk;
+  const char *read_interim_config();
+#endif
+  //
+  // returns NULL on success
+  // if fd >= 0 then on failure it returns an error string
+  //            otherwise on failure it returns (char *)-1
+  //
+  const char *read_config(int fd = -1);
+  int write_config_data(int fd);
+private:
+  char const * const vol_str;
+  int getVolume(char* line);
+};
+
+extern Store theStore;
+
+// store either free or in the cache, can be stolen for reconfiguration
+void stealStore(Store & s, int blocks);
+int initialize_store();
+
+struct storageConfigFile {
+  const char *parseFile(int fd) {
+    Store tStore;
+    return tStore.read_config(fd);
+  }
+};
+
+#endif
diff --git a/iocore/cache/Inline.cc b/iocore/cache/Inline.cc
new file mode 100644
index 00000000..c1b63c45
--- /dev/null
+++ b/iocore/cache/Inline.cc
@@ -0,0 +1,32 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using the public interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_Cache.h"
+
+
diff --git a/iocore/cache/Makefile.am b/iocore/cache/Makefile.am
new file mode 100644
index 00000000..68e3090b
--- /dev/null
+++ b/iocore/cache/Makefile.am
@@ -0,0 +1,69 @@
+# Makefile.am for the traffic/iocore/cache hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/proxy/http/remap \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+ADD_SRC =
+if BUILD_TESTS
+  ADD_SRC += CacheTest.cc P_CacheTest.h 
+endif
+
+noinst_LIBRARIES = libinkcache.a
+
+libinkcache_a_SOURCES = \
+  Cache.cc \
+  CacheDir.cc \
+  CacheDisk.cc \
+  CacheHosting.cc \
+  CacheHttp.cc \
+  CacheLink.cc \
+  CachePages.cc \
+  CachePagesInternal.cc \
+  CacheRead.cc \
+  CacheVol.cc \
+  CacheWrite.cc \
+  I_Cache.h \
+  I_CacheDefs.h \
+  I_Store.h \
+  Inline.cc \
+  P_Cache.h \
+  P_CacheArray.h \
+  P_CacheDir.h \
+  P_CacheDisk.h \
+  P_CacheHosting.h \
+  P_CacheHttp.h \
+  P_CacheInternal.h \
+  P_CacheVol.h \
+  P_RamCache.h \
+  RamCacheCLFUS.cc \
+  RamCacheLRU.cc \
+  Store.cc \
+  $(ADD_SRC)
diff --git a/iocore/cache/Makefile.in b/iocore/cache/Makefile.in
new file mode 100644
index 00000000..dd231b8a
--- /dev/null
+++ b/iocore/cache/Makefile.in
@@ -0,0 +1,933 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/cache hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
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+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
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+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
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+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
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+      *$$target_option*) has_opt=yes; break;; \
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+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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+transform = $(program_transform_name)
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
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+CONFIG_CLEAN_FILES =
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+AM_V_AR = $(am__v_AR_@AM_V@)
+am__v_AR_ = $(am__v_AR_@AM_DEFAULT_V@)
+am__v_AR_0 = @echo "  AR      " $@;
+am__v_AR_1 = 
+libinkcache_a_AR = $(AR) $(ARFLAGS)
+libinkcache_a_LIBADD =
+am__libinkcache_a_SOURCES_DIST = Cache.cc CacheDir.cc CacheDisk.cc \
+	CacheHosting.cc CacheHttp.cc CacheLink.cc CachePages.cc \
+	CachePagesInternal.cc CacheRead.cc CacheVol.cc CacheWrite.cc \
+	I_Cache.h I_CacheDefs.h I_Store.h Inline.cc P_Cache.h \
+	P_CacheArray.h P_CacheDir.h P_CacheDisk.h P_CacheHosting.h \
+	P_CacheHttp.h P_CacheInternal.h P_CacheVol.h P_RamCache.h \
+	RamCacheCLFUS.cc RamCacheLRU.cc Store.cc CacheTest.cc \
+	P_CacheTest.h
+@BUILD_TESTS_TRUE@am__objects_1 = CacheTest.$(OBJEXT)
+am__objects_2 = $(am__objects_1)
+am_libinkcache_a_OBJECTS = Cache.$(OBJEXT) CacheDir.$(OBJEXT) \
+	CacheDisk.$(OBJEXT) CacheHosting.$(OBJEXT) CacheHttp.$(OBJEXT) \
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+	CachePagesInternal.$(OBJEXT) CacheRead.$(OBJEXT) \
+	CacheVol.$(OBJEXT) CacheWrite.$(OBJEXT) Inline.$(OBJEXT) \
+	RamCacheCLFUS.$(OBJEXT) RamCacheLRU.$(OBJEXT) Store.$(OBJEXT) \
+	$(am__objects_2)
+libinkcache_a_OBJECTS = $(am_libinkcache_a_OBJECTS)
+AM_V_P = $(am__v_P_@AM_V@)
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/CacheTest.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/CacheVol.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/CacheWrite.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Inline.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/RamCacheCLFUS.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/RamCacheLRU.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Store.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+
+.cc.obj:
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+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/iocore/cache/Notes b/iocore/cache/Notes
new file mode 100644
index 00000000..54d35c81
--- /dev/null
+++ b/iocore/cache/Notes
@@ -0,0 +1,32 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+proxy/cluster/Cluster.h is now iocore/cluster/P_ClusterCache.h
+Clustering compiles but only works if this module is compiled with the entire
+TS because there are a lot of stuff required for clustering in proxy/http.
+
+
+cache ifdefs
+FIXME_HOSTDB -> Store ifdef to be turned off when HostDB stops using Store
+FIXME_MGMT   -> Interface for warnings on the manager
+FIXME_CLUSTER_ARGUMENTS -> runtime arguments for clustering etc. Needs
+to be added by Eric
+
+cluster ifdefs
+FIXME_WIRELESS_API -> RPC API's for wireless which is probably not going to 
+be used in the future
diff --git a/iocore/cache/P_Cache.h b/iocore/cache/P_Cache.h
new file mode 100644
index 00000000..ed738e38
--- /dev/null
+++ b/iocore/cache/P_Cache.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_CACHE_H__
+#define _P_CACHE_H__
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "P_AIO.h"
+#include "I_RecProcess.h"
+
+#ifdef HTTP_CACHE
+#include "HTTP.h"
+#include "MIME.h"
+#include "MimeTable.h"
+#include "HttpTransactCache.h"
+#endif
+
+#include "I_Cache.h"
+#include "P_CacheDisk.h"
+#include "P_CacheDir.h"
+#include "P_RamCache.h"
+#include "P_CacheVol.h"
+#include "P_CacheInternal.h"
+#include "P_CacheHosting.h"
+#include "P_CacheHttp.h"
+#endif /* _P_CACHE_H */
diff --git a/iocore/cache/P_CacheArray.h b/iocore/cache/P_CacheArray.h
new file mode 100644
index 00000000..681290a0
--- /dev/null
+++ b/iocore/cache/P_CacheArray.h
@@ -0,0 +1,182 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __CACHE_ARRAY_H__
+#define __CACHE_ARRAY_H__
+
+#define FAST_DATA_SIZE    4
+
+
+template<class T> struct CacheArray
+{
+  CacheArray(const T * val, int initial_size = 0);
+   ~CacheArray();
+
+  operator  const T *() const;
+  operator  T *();
+    T & operator[] (int idx);
+    T & operator() (int idx);
+  T *detach();
+  int length();
+  void clear();
+  void set_length(int i)
+  {
+    pos = i - 1;
+  }
+
+  void resize(int new_size);
+
+  T *data;
+  T fast_data[FAST_DATA_SIZE];
+  const T *default_val;
+  int size;
+  int pos;
+};
+
+
+template<class T> TS_INLINE CacheArray<T>::CacheArray(const T * val, int initial_size)
+  :
+data(NULL),
+default_val(val),
+size(0),
+pos(-1)
+{
+  if (initial_size > 0) {
+    int i = 1;
+
+    while (i < initial_size)
+      i <<= 1;
+
+    resize(i);
+  }
+}
+
+template<class T> TS_INLINE CacheArray<T>::~CacheArray()
+{
+  if (data) {
+    if (data != fast_data) {
+      delete[]data;
+    }
+  }
+}
+
+template<class T> TS_INLINE CacheArray<T>::operator  const T *()
+const
+{
+  return
+    data;
+}
+
+template <class T> TS_INLINE CacheArray <T>::operator T *()
+{
+  return data;
+}
+
+template<class T> TS_INLINE T & CacheArray<T>::operator [](int idx) {
+  return data[idx];
+}
+
+template<class T> TS_INLINE T & CacheArray<T>::operator ()(int idx) {
+  if (idx >= size) {
+    int new_size;
+
+    if (size == 0) {
+      new_size = FAST_DATA_SIZE;
+    } else {
+      new_size = size * 2;
+    }
+
+    if (idx >= new_size) {
+      new_size = idx + 1;
+    }
+
+    resize(new_size);
+  }
+
+  if (idx > pos) {
+    pos = idx;
+  }
+
+  return data[idx];
+}
+
+template<class T> TS_INLINE T * CacheArray<T>::detach()
+{
+  T *d;
+
+  d = data;
+  data = NULL;
+
+  return d;
+}
+
+template<class T> TS_INLINE int CacheArray<T>::length()
+{
+  return pos + 1;
+}
+
+template<class T> TS_INLINE void CacheArray<T>::clear()
+{
+  if (data) {
+    if (data != fast_data) {
+      delete[]data;
+    }
+    data = NULL;
+  }
+
+  size = 0;
+  pos = -1;
+}
+
+template<class T> TS_INLINE void CacheArray<T>::resize(int new_size)
+{
+  if (new_size > size) {
+    T *new_data;
+    int i;
+
+    if (new_size > FAST_DATA_SIZE) {
+      new_data = new T[new_size];
+    } else {
+      new_data = fast_data;
+    }
+
+    for (i = 0; i < size; i++) {
+      new_data[i] = data[i];
+    }
+
+    for (; i < new_size; i++) {
+      new_data[i] = *default_val;
+    }
+
+    if (data) {
+      if (data != fast_data) {
+        delete[]data;
+      }
+    }
+    data = new_data;
+    size = new_size;
+  }
+}
+
+
+#endif /* __CACHE_ARRAY_H__ */
diff --git a/iocore/cache/P_CacheDir.h b/iocore/cache/P_CacheDir.h
new file mode 100644
index 00000000..013698a1
--- /dev/null
+++ b/iocore/cache/P_CacheDir.h
@@ -0,0 +1,393 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef _P_CACHE_DIR_H__
+#define _P_CACHE_DIR_H__
+
+#include "P_CacheHttp.h"
+
+struct Vol;
+struct InterimCacheVol;
+struct CacheVC;
+
+/*
+  Directory layout
+*/
+
+// Constants
+
+#define DIR_TAG_WIDTH			12
+#define DIR_MASK_TAG(_t)                ((_t) & ((1 << DIR_TAG_WIDTH) - 1))
+#define SIZEOF_DIR           		10
+#define ESTIMATED_OBJECT_SIZE           8000
+
+#define MAX_DIR_SEGMENTS                (32 * (1<<16))
+#define DIR_DEPTH                       4
+#define DIR_SIZE_WIDTH                  6
+#define DIR_BLOCK_SIZES                 4
+#define DIR_BLOCK_SHIFT(_i)             (3*(_i))
+#define DIR_BLOCK_SIZE(_i)              (CACHE_BLOCK_SIZE << DIR_BLOCK_SHIFT(_i))
+#define DIR_SIZE_WITH_BLOCK(_i)         ((1<<DIR_SIZE_WIDTH) * DIR_BLOCK_SIZE(_i))
+#define DIR_OFFSET_BITS                 40
+#define DIR_OFFSET_MAX                  ((((off_t)1) << DIR_OFFSET_BITS) - 1)
+
+#define SYNC_MAX_WRITE                  (2 * 1024 * 1024)
+#define SYNC_DELAY                      HRTIME_MSECONDS(500)
+#define DO_NOT_REMOVE_THIS              0
+
+// Debugging Options
+
+//#define DO_CHECK_DIR_FAST
+//#define DO_CHECK_DIR
+
+// Macros
+
+#ifdef DO_CHECK_DIR
+#define CHECK_DIR(_d) ink_assert(check_dir(_d))
+#else
+#define CHECK_DIR(_d) ((void)0)
+#endif
+
+#define dir_index(_e, _i) ((Dir*)((char*)(_e)->dir + (SIZEOF_DIR * (_i))))
+#define dir_assign(_e,_x) do {                \
+    (_e)->w[0] = (_x)->w[0];                  \
+    (_e)->w[1] = (_x)->w[1];                  \
+    (_e)->w[2] = (_x)->w[2];                  \
+    (_e)->w[3] = (_x)->w[3];                  \
+    (_e)->w[4] = (_x)->w[4];                  \
+} while (0)
+#define dir_assign_data(_e,_x) do {           \
+  unsigned short next = dir_next(_e);         \
+  dir_assign(_e, _x);		              \
+  dir_set_next(_e, next);                     \
+} while(0)
+#if !TS_USE_INTERIM_CACHE
+// entry is valid
+#define dir_valid(_d, _e)                                               \
+  (_d->header->phase == dir_phase(_e) ? vol_in_phase_valid(_d, _e) :   \
+                                        vol_out_of_phase_valid(_d, _e))
+// entry is valid and outside of write aggregation region
+#define dir_agg_valid(_d, _e)                                            \
+  (_d->header->phase == dir_phase(_e) ? vol_in_phase_valid(_d, _e) :    \
+                                        vol_out_of_phase_agg_valid(_d, _e))
+// entry may be valid or overwritten in the last aggregated write
+#define dir_write_valid(_d, _e)                                         \
+  (_d->header->phase == dir_phase(_e) ? vol_in_phase_valid(_d, _e) :   \
+                                        vol_out_of_phase_write_valid(_d, _e))
+#define dir_agg_buf_valid(_d, _e)                                          \
+  (_d->header->phase == dir_phase(_e) && vol_in_phase_agg_buf_valid(_d, _e))
+#endif
+#define dir_is_empty(_e) (!dir_offset(_e))
+#define dir_clear(_e) do { \
+    (_e)->w[0] = 0; \
+    (_e)->w[1] = 0; \
+    (_e)->w[2] = 0; \
+    (_e)->w[3] = 0; \
+    (_e)->w[4] = 0; \
+} while (0)
+#define dir_clean(_e) dir_set_offset(_e,0)
+#define dir_segment(_s, _d) vol_dir_segment(_d, _s)
+
+// OpenDir
+
+#define OPEN_DIR_BUCKETS           256
+
+struct EvacuationBlock;
+typedef uint32_t DirInfo;
+
+// Cache Directory
+
+// INTERNAL: do not access these members directly, use the
+// accessors below (e.g. dir_offset, dir_set_offset).
+// These structures are stored in memory 2 byte aligned.
+// The accessors prevent unaligned memory access which
+// is often either less efficient or unsupported depending
+// on the processor.
+struct Dir
+{
+#if DO_NOT_REMOVE_THIS
+  // THE BIT-FIELD INTERPRETATION OF THIS STRUCT WHICH HAS TO 
+  // USE MACROS TO PREVENT UNALIGNED LOADS
+  // bits are numbered from lowest in u16 to highest
+  // always index as u16 to avoid byte order issues
+  unsigned int offset:24;       // (0,1:0-7) 16M * 512 = 8GB
+  unsigned int big:2;           // (1:8-9) 512 << (3 * big)
+  unsigned int size:6;          // (1:10-15) 6**2 = 64, 64*512 = 32768 .. 64*256=16MB
+  unsigned int tag:12;          // (2:0-11) 2048 / 8 entries/bucket = .4%
+  unsigned int phase:1;         // (2:12)
+  unsigned int head:1;          // (2:13) first segment in a document
+  unsigned int pinned:1;        // (2:14)
+  unsigned int token:1;         // (2:15)
+  unsigned int next:16;         // (3)
+  inku16 offset_high;           // 8GB * 65k = 0.5PB (4)
+#else
+  uint16_t w[5];
+  Dir() { dir_clear(this); }
+#endif
+};
+
+// INTERNAL: do not access these members directly, use the
+// accessors below (e.g. dir_offset, dir_set_offset)
+struct FreeDir
+{
+#if DO_NOT_REMOVE_THIS
+  // THE BIT-FIELD INTERPRETATION OF THIS STRUCT WHICH HAS TO 
+  // USE MACROS TO PREVENT UNALIGNED LOADS
+  unsigned int offset:24;       // 0: empty
+  unsigned int reserved:8;
+  unsigned int prev:16;         // (2)
+  unsigned int next:16;         // (3)
+#if TS_USE_INTERIM_CACHE == 1
+  unsigned int offset_high:12;   // 8GB * 4K = 32TB
+  unsigned int index:3;          // interim index
+  unsigned int ininterim:1;          // in interim or not
+#else
+  inku16 offset_high;           // 0: empty
+#endif
+#else
+  uint16_t w[5];
+  FreeDir() { dir_clear(this); }
+#endif
+};
+
+#if TS_USE_INTERIM_CACHE == 1
+#define dir_ininterim(_e) (((_e)->w[4] >> 15) & 1)
+#define dir_set_ininterim(_e) ((_e)->w[4] |= (1 << 15));
+#define dir_set_indisk(_e) ((_e)->w[4] &= 0x0FFF);
+#define dir_get_index(_e) (((_e)->w[4] >> 12) & 0x7)
+#define dir_set_index(_e, i) ((_e)->w[4] |= (i << 12))
+#define dir_offset(_e) ((int64_t)                \
+  (((uint64_t)(_e)->w[0]) |           \
+  (((uint64_t)((_e)->w[1] & 0xFF)) << 16) |       \
+  (((uint64_t)((_e)->w[4] & 0x0FFF)) << 24)))
+#define dir_set_offset(_e, _o) do {            \
+  (_e)->w[0] = (uint16_t)_o;        \
+  (_e)->w[1] = (uint16_t)((((_o) >> 16) & 0xFF) | ((_e)->w[1] & 0xFF00));       \
+  (_e)->w[4] = (((_e)->w[4] & 0xF000) | ((uint16_t)((_o) >> 24)));                                          \
+} while (0)
+#define dir_get_offset(_e) ((int64_t)                                     \
+                         (((uint64_t)(_e)->w[0]) |                        \
+                          (((uint64_t)((_e)->w[1] & 0xFF)) << 16) |       \
+                          (((uint64_t)(_e)->w[4]) << 24)))
+
+void clear_interim_dir(Vol *v);
+void clear_interimvol_dir(Vol *v, int offset);
+void dir_clean_range_interimvol(off_t start, off_t end, InterimCacheVol *svol);
+
+#else
+#define dir_offset(_e) ((int64_t)                                         \
+                         (((uint64_t)(_e)->w[0]) |                        \
+                          (((uint64_t)((_e)->w[1] & 0xFF)) << 16) |       \
+                          (((uint64_t)(_e)->w[4]) << 24)))
+#define dir_set_offset(_e,_o) do { \
+    (_e)->w[0] = (uint16_t)_o;                                                    \
+    (_e)->w[1] = (uint16_t)((((_o) >> 16) & 0xFF) | ((_e)->w[1] & 0xFF00));       \
+    (_e)->w[4] = (uint16_t)((_o) >> 24);                                          \
+} while (0)
+#endif
+#define dir_bit(_e, _w, _b) ((uint32_t)(((_e)->w[_w] >> (_b)) & 1))
+#define dir_set_bit(_e, _w, _b, _v) (_e)->w[_w] = (uint16_t)(((_e)->w[_w] & ~(1<<(_b))) | (((_v)?1:0)<<(_b)))
+#define dir_big(_e) ((uint32_t)((((_e)->w[1]) >> 8)&0x3))
+#define dir_set_big(_e, _v) (_e)->w[1] = (uint16_t)(((_e)->w[1] & 0xFCFF) | (((uint16_t)(_v))&0x3)<<8)
+#define dir_size(_e) ((uint32_t)(((_e)->w[1]) >> 10))
+#define dir_set_size(_e, _v) (_e)->w[1] = (uint16_t)(((_e)->w[1] & ((1<<10)-1)) | ((_v)<<10))
+#define dir_set_approx_size(_e, _s) do {                         \
+  if ((_s) <= DIR_SIZE_WITH_BLOCK(0)) {                          \
+    dir_set_big(_e,0);                                           \
+    dir_set_size(_e,((_s)-1) / DIR_BLOCK_SIZE(0));               \
+  } else if ((_s) <= DIR_SIZE_WITH_BLOCK(1)) {                   \
+    dir_set_big(_e,1);                                           \
+    dir_set_size(_e,((_s)-1) / DIR_BLOCK_SIZE(1));               \
+  } else if ((_s) <= DIR_SIZE_WITH_BLOCK(2)) {                   \
+    dir_set_big(_e,2);                                           \
+    dir_set_size(_e,((_s)-1) / DIR_BLOCK_SIZE(2));               \
+  } else {                                                       \
+    dir_set_big(_e,3);                                           \
+    dir_set_size(_e,((_s)-1) / DIR_BLOCK_SIZE(3));               \
+  }                                                              \
+} while (0)
+#define dir_approx_size(_e) ((dir_size(_e) + 1) * DIR_BLOCK_SIZE(dir_big(_e)))
+#define round_to_approx_dir_size(_s) (_s <= DIR_SIZE_WITH_BLOCK(0) ? ROUND_TO(_s, DIR_BLOCK_SIZE(0)) : \
+                                      (_s <= DIR_SIZE_WITH_BLOCK(1) ? ROUND_TO(_s, DIR_BLOCK_SIZE(1)) : \
+                                       (_s <= DIR_SIZE_WITH_BLOCK(2) ? ROUND_TO(_s, DIR_BLOCK_SIZE(2)) : \
+                                        ROUND_TO(_s, DIR_BLOCK_SIZE(3)))))
+#define dir_tag(_e) ((uint32_t)((_e)->w[2]&((1<<DIR_TAG_WIDTH)-1)))
+#define dir_set_tag(_e,_t) (_e)->w[2] = (uint16_t)(((_e)->w[2]&~((1<<DIR_TAG_WIDTH)-1)) | ((_t)&((1<<DIR_TAG_WIDTH)-1)))
+#define dir_phase(_e) dir_bit(_e,2,12)
+#define dir_set_phase(_e,_v) dir_set_bit(_e,2,12,_v)
+#define dir_head(_e) dir_bit(_e,2,13)
+#define dir_set_head(_e, _v) dir_set_bit(_e,2,13,_v)
+#define dir_pinned(_e) dir_bit(_e,2,14)
+#define dir_set_pinned(_e, _v) dir_set_bit(_e,2,14,_v)
+#define dir_token(_e) dir_bit(_e,2,15)
+#define dir_set_token(_e, _v) dir_set_bit(_e,2,15,_v)
+#define dir_next(_e) (_e)->w[3]
+#define dir_set_next(_e, _o) (_e)->w[3] = (uint16_t)(_o)
+#define dir_prev(_e) (_e)->w[2]
+#define dir_set_prev(_e,_o) (_e)->w[2] = (uint16_t)(_o)
+
+// INKqa11166 - Cache can not store 2 HTTP alternates simultaneously.
+// To allow this, move the vector from the CacheVC to the OpenDirEntry.
+// Each CacheVC now maintains a pointer to this vector. Adding/Deleting
+// alternates from this vector is done under the Vol::lock. The alternate
+// is deleted/inserted into the vector just before writing the vector disk
+// (CacheVC::updateVector).
+LINK_FORWARD_DECLARATION(CacheVC, opendir_link) // forward declaration
+struct OpenDirEntry
+{
+  DLL<CacheVC, Link_CacheVC_opendir_link> writers;       // list of all the current writers
+  DLL<CacheVC, Link_CacheVC_opendir_link> readers;         // list of all the current readers - not used
+  CacheHTTPInfoVector vector;   // Vector for the http document. Each writer
+                                // maintains a pointer to this vector and
+                                // writes it down to disk.
+  CacheKey single_doc_key;      // Key for the resident alternate.
+  Dir single_doc_dir;           // Directory for the resident alternate
+  Dir first_dir;                // Dir for the vector. If empty, a new dir is
+                                // inserted, otherwise this dir is overwritten
+  uint16_t num_writers;           // num of current writers
+  uint16_t max_writers;           // max number of simultaneous writers allowed
+  bool dont_update_directory;   // if set, the first_dir is not updated.
+  bool move_resident_alt;       // if set, single_doc_dir is inserted.
+  volatile bool reading_vec;    // somebody is currently reading the vector
+  volatile bool writing_vec;    // somebody is currently writing the vector
+
+  LINK(OpenDirEntry, link);
+
+  int wait(CacheVC *c, int msec);
+
+  bool has_multiple_writers()
+  {
+    return num_writers > 1;
+  }
+};
+
+struct OpenDir: public Continuation
+{
+  Queue<CacheVC, Link_CacheVC_opendir_link> delayed_readers;
+  DLL<OpenDirEntry> bucket[OPEN_DIR_BUCKETS];
+
+  int open_write(CacheVC *c, int allow_if_writers, int max_writers);
+  int close_write(CacheVC *c);
+  OpenDirEntry *open_read(INK_MD5 *key);
+  int signal_readers(int event, Event *e);
+
+  OpenDir();
+};
+
+struct CacheSync: public Continuation
+{
+  int vol;
+  char *buf;
+  size_t buflen;
+  off_t writepos;
+  AIOCallbackInternal io;
+  Event *trigger;
+  int mainEvent(int event, Event *e);
+  void aio_write(int fd, char *b, int n, off_t o);
+
+  CacheSync():Continuation(new_ProxyMutex()), vol(0), buf(0), buflen(0), writepos(0), trigger(0)
+  {
+    SET_HANDLER(&CacheSync::mainEvent);
+  }
+};
+
+// Global Functions
+
+void vol_init_dir(Vol *d);
+int dir_token_probe(CacheKey *, Vol *, Dir *);
+int dir_probe(CacheKey *, Vol *, Dir *, Dir **);
+int dir_insert(CacheKey *key, Vol *d, Dir *to_part);
+int dir_overwrite(CacheKey *key, Vol *d, Dir *to_part, Dir *overwrite, bool must_overwrite = true);
+int dir_delete(CacheKey *key, Vol *d, Dir *del);
+int dir_lookaside_probe(CacheKey *key, Vol *d, Dir *result, EvacuationBlock ** eblock);
+int dir_lookaside_insert(EvacuationBlock *b, Vol *d, Dir *to);
+int dir_lookaside_fixup(CacheKey *key, Vol *d);
+void dir_lookaside_cleanup(Vol *d);
+void dir_lookaside_remove(CacheKey *key, Vol *d);
+void dir_free_entry(Dir *e, int s, Vol *d);
+void dir_sync_init();
+int check_dir(Vol *d);
+void dir_clean_vol(Vol *d);
+void dir_clear_range(off_t start, off_t end, Vol *d);
+int dir_segment_accounted(int s, Vol *d, int offby = 0,
+                          int *free = 0, int *used = 0,
+                          int *empty = 0, int *valid = 0, int *agg_valid = 0, int *avg_size = 0);
+uint64_t dir_entries_used(Vol *d);
+void sync_cache_dir_on_shutdown();
+
+// Global Data
+
+extern Dir empty_dir;
+
+// Inline Funtions
+
+#define dir_in_seg(_s, _i) ((Dir*)(((char*)(_s)) + (SIZEOF_DIR *(_i))))
+
+TS_INLINE bool
+dir_compare_tag(Dir *e, CacheKey *key)
+{
+  return (dir_tag(e) == DIR_MASK_TAG(key->word(2)));
+}
+
+TS_INLINE Dir *
+dir_from_offset(int64_t i, Dir *seg)
+{
+#if DIR_DEPTH < 5
+  if (!i)
+    return 0;
+  return dir_in_seg(seg, i);
+#else
+  i = i + ((i - 1) / (DIR_DEPTH - 1));
+  return dir_in_seg(seg, i);
+#endif
+}
+TS_INLINE Dir *
+next_dir(Dir *d, Dir *seg)
+{
+  int i = dir_next(d);
+  return dir_from_offset(i, seg);
+}
+TS_INLINE int64_t
+dir_to_offset(Dir *d, Dir *seg)
+{
+#if DIR_DEPTH < 5
+  return (((char*)d) - ((char*)seg))/SIZEOF_DIR;
+#else
+  int64_t i = (int64_t)((((char*)d) - ((char*)seg))/SIZEOF_DIR);
+  i = i - (i / DIR_DEPTH);
+  return i;
+#endif
+}
+TS_INLINE Dir *
+dir_bucket(int64_t b, Dir *seg)
+{
+  return dir_in_seg(seg, b * DIR_DEPTH);
+}
+TS_INLINE Dir *
+dir_bucket_row(Dir *b, int64_t i)
+{
+  return dir_in_seg(b, i);
+}
+
+#endif /* _P_CACHE_DIR_H__ */
diff --git a/iocore/cache/P_CacheDisk.h b/iocore/cache/P_CacheDisk.h
new file mode 100644
index 00000000..c704bdcb
--- /dev/null
+++ b/iocore/cache/P_CacheDisk.h
@@ -0,0 +1,135 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_CACHE_DISK_H__
+#define _P_CACHE_DISK_H__
+
+#include "I_Cache.h"
+
+extern int cache_config_max_disk_errors;
+
+#define DISK_BAD(_x)                    ((_x)->num_errors >= cache_config_max_disk_errors)
+#define DISK_BAD_SIGNALLED(_x)          (_x->num_errors > cache_config_max_disk_errors)
+#define SET_DISK_BAD(_x)                (_x->num_errors = cache_config_max_disk_errors)
+#define SET_DISK_OKAY(_x)               (_x->num_errors = 0)
+
+#define VOL_BLOCK_SIZE                  (1024 * 1024 * 128)
+#define MIN_VOL_SIZE                    VOL_BLOCK_SIZE
+#define ROUND_DOWN_TO_VOL_BLOCK(_x)     (((_x) &~ (VOL_BLOCK_SIZE - 1)))
+#define VOL_BLOCK_SHIFT                 27
+#define ROUND_DOWN_TO_STORE_BLOCK(_x)   (((_x) >> STORE_BLOCK_SHIFT) << STORE_BLOCK_SHIFT)
+
+#define STORE_BLOCKS_PER_VOL            (VOL_BLOCK_SIZE / STORE_BLOCK_SIZE)
+#define DISK_HEADER_MAGIC               0xABCD1237
+
+/* each disk vol block has a corresponding Vol object */
+struct CacheDisk;
+
+struct DiskVolBlock
+{
+  uint64_t offset;  // offset in bytes from the start of the disk
+  uint64_t len;  // length in in store blocks
+  int number;
+  unsigned int type:3;
+  unsigned int free:1;
+};
+
+struct DiskVolBlockQueue
+{
+  DiskVolBlock *b;
+  int new_block;                /* whether an existing vol or a new one */
+  LINK(DiskVolBlockQueue, link);
+
+  DiskVolBlockQueue()
+    : b(NULL), new_block(0)
+  { }
+};
+
+struct DiskVol
+{
+  int num_volblocks;           /* number of disk volume blocks in this volume */
+  int vol_number;              /* the volume number of this volume */
+  uint64_t size;                  /* size in store blocks */
+  CacheDisk *disk;
+  Queue<DiskVolBlockQueue> dpb_queue;
+};
+
+struct DiskHeader
+{
+  unsigned int magic;
+  unsigned int num_volumes;            /* number of discrete volumes (DiskVol) */
+  unsigned int num_free;               /* number of disk volume blocks free */
+  unsigned int num_used;               /* number of disk volume blocks in use */
+  unsigned int num_diskvol_blks;       /* number of disk volume blocks */
+  uint64_t num_blocks;
+  DiskVolBlock vol_info[1];
+};
+
+struct CacheDisk: public Continuation
+{
+  DiskHeader *header;
+  char *path;
+  int header_len;
+  AIOCallbackInternal io;
+  off_t len;                // in blocks (STORE_BLOCK)
+  off_t start;
+  off_t skip;
+  off_t num_usable_blocks;
+  int hw_sector_size;
+  int fd;
+  off_t free_space;
+  off_t wasted_space;
+  DiskVol **disk_vols;
+  DiskVol *free_blocks;
+  int num_errors;
+  int cleared;
+  int forced_volume_num; // assuming zero is not a valid volume number
+
+  CacheDisk()
+    : Continuation(new_ProxyMutex()), header(NULL),
+      path(NULL), header_len(0), len(0), start(0), skip(0),
+      num_usable_blocks(0), fd(-1), free_space(0), wasted_space(0),
+      disk_vols(NULL), free_blocks(NULL), num_errors(0), cleared(0),
+      forced_volume_num(0)
+  { }
+
+   ~CacheDisk();
+
+  int open(bool clear);
+  int open(char *s, off_t blocks, off_t skip, int hw_sector_size, int fildes, bool clear);
+  int clearDisk();
+  int clearDone(int event, void *data);
+  int openStart(int event, void *data);
+  int openDone(int event, void *data);
+  int sync();
+  int syncDone(int event, void *data);
+  DiskVolBlock *create_volume(int number, off_t size, int scheme);
+  int delete_volume(int number);
+  int delete_all_volumes();
+  void update_header();
+  DiskVol *get_diskvol(int vol_number);
+
+};
+
+
+#endif
diff --git a/iocore/cache/P_CacheHosting.h b/iocore/cache/P_CacheHosting.h
new file mode 100644
index 00000000..5d1e7938
--- /dev/null
+++ b/iocore/cache/P_CacheHosting.h
@@ -0,0 +1,191 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_CACHE_HOSTING_H__
+#define __P_CACHE_HOSTING_H__
+#include "P_Cache.h"
+
+#define CACHE_MEM_FREE_TIMEOUT     HRTIME_SECONDS(1)
+
+struct Vol;
+struct CacheVol;
+
+struct CacheHostResult;
+struct Cache;
+
+struct CacheHostRecord
+{
+  int Init(CacheType typ);
+  int Init(matcher_line *line_info, CacheType typ);
+  void UpdateMatch(CacheHostResult *r, char *rd);
+  void Print();
+  ~CacheHostRecord()
+  {
+    ats_free(vols);
+    ats_free(vol_hash_table);
+    ats_free(cp);
+  }
+
+  CacheType type;
+  Vol **vols;
+  volatile int good_num_vols;
+  volatile int num_vols;
+  int num_initialized;
+  unsigned short *vol_hash_table;
+  CacheVol **cp;
+  int num_cachevols;
+
+  CacheHostRecord():
+    type(CACHE_NONE_TYPE), vols(NULL), good_num_vols(0), num_vols(0),
+    num_initialized(0), vol_hash_table(0), cp(NULL), num_cachevols(0)
+  { }
+
+};
+
+void build_vol_hash_table(CacheHostRecord *cp);
+
+struct CacheHostResult
+{
+  CacheHostRecord *record;
+
+  CacheHostResult()
+    : record(NULL)
+  { }
+};
+
+
+class CacheHostMatcher
+{
+public:
+  CacheHostMatcher(const char * name, CacheType typ);
+  ~CacheHostMatcher();
+
+  void Match(char *rdata, int rlen, CacheHostResult *result);
+  void AllocateSpace(int num_entries);
+  void NewEntry(matcher_line *line_info);
+  void Print();
+
+  int getNumElements() const { return num_el; }
+  CacheHostRecord *getDataArray() const { return data_array; }
+  HostLookup *getHLookup() const { return host_lookup; }
+
+private:
+  static void PrintFunc(void *opaque_data);
+  HostLookup *host_lookup;      // Data structure to do the lookups
+  CacheHostRecord *data_array;  // array of all data items
+  int array_len;                // the length of the arrays
+  int num_el;                   // the number of itmems in the tree
+  CacheType type;
+};
+
+class CacheHostTable
+{
+public:
+  // Parameter name must not be deallocated before this
+  //  object is
+  CacheHostTable(Cache *c, CacheType typ);
+   ~CacheHostTable();
+  int BuildTable(const char * config_file_path);
+  int BuildTableFromString(const char * config_file_path, char *str);
+  void Match(char *rdata, int rlen, CacheHostResult *result);
+  void Print();
+
+  int getEntryCount() const { return m_numEntries; }
+  CacheHostMatcher *getHostMatcher() const { return hostMatch; }
+
+  static int config_callback(const char *, RecDataT, RecData, void *);
+
+  void register_config_callback(CacheHostTable ** p)
+  {
+    REC_RegisterConfigUpdateFunc("proxy.config.cache.hosting_filename", CacheHostTable::config_callback, (void *) p);
+  }
+
+  CacheType type;
+  Cache *cache;
+  int m_numEntries;
+  CacheHostRecord gen_host_rec;
+
+private:
+  CacheHostMatcher *hostMatch;
+  const matcher_tags *config_tags;
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+};
+
+struct CacheHostTableConfig;
+typedef int (CacheHostTableConfig::*CacheHostTabHandler) (int, void *);
+struct CacheHostTableConfig: public Continuation
+{
+  CacheHostTable **ppt;
+  CacheHostTableConfig(CacheHostTable ** appt)
+    : Continuation(NULL), ppt(appt)
+  {
+    SET_HANDLER((CacheHostTabHandler) & CacheHostTableConfig::mainEvent);
+  }
+
+  int mainEvent(int event, Event *e)
+  {
+    (void) e;
+    (void) event;
+    CacheHostTable *t = new CacheHostTable((*ppt)->cache, (*ppt)->type);
+    CacheHostTable *old = (CacheHostTable *) ink_atomic_swap(&t, *ppt);
+    new_Deleter(old, CACHE_MEM_FREE_TIMEOUT);
+    return EVENT_DONE;
+  }
+};
+
+
+/* list of volumes in the volume.config file */
+struct ConfigVol
+{
+  int number;
+  CacheType scheme;
+  off_t size;
+  bool in_percent;
+  int percent;
+  CacheVol *cachep;
+  LINK(ConfigVol, link);
+};
+
+struct ConfigVolumes
+{
+  int num_volumes;
+  int num_http_volumes;
+  int num_stream_volumes;
+  Queue<ConfigVol> cp_queue;
+  void read_config_file();
+  void BuildListFromString(char *config_file_path, char *file_buf);
+
+  void clear_all(void)
+  {
+    // remove all the volumes from the queue
+    for (int i = 0; i < num_volumes; i++) {
+      cp_queue.pop();
+    }
+    // reset count variables
+    num_volumes = 0;
+    num_http_volumes = 0;
+    num_stream_volumes = 0;
+  }
+};
+
+#endif
diff --git a/iocore/cache/P_CacheHttp.h b/iocore/cache/P_CacheHttp.h
new file mode 100644
index 00000000..e64a2005
--- /dev/null
+++ b/iocore/cache/P_CacheHttp.h
@@ -0,0 +1,99 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __CACHE_HTTP_H__
+#define __CACHE_HTTP_H__
+
+#include "P_CacheArray.h"
+#ifdef HTTP_CACHE
+#include "HTTP.h"
+#include "URL.h"
+
+
+typedef URL CacheURL;
+typedef HTTPHdr CacheHTTPHdr;
+typedef HTTPInfo CacheHTTPInfo;
+
+
+#define OFFSET_BITS 24
+enum
+{
+  OWNER_NONE = 0,
+  OWNER_CACHE = 1,
+  OWNER_HTTP = 2
+};
+
+#else
+struct CacheHTTPInfo
+{
+};
+
+#endif //HTTP_CACHE
+
+struct vec_info
+{
+  CacheHTTPInfo alternate;
+};
+
+struct CacheHTTPInfoVector
+{
+  void *magic;
+
+    CacheHTTPInfoVector();
+   ~CacheHTTPInfoVector();
+
+  int count()
+  {
+    return xcount;
+  }
+  int insert(CacheHTTPInfo * info, int id = -1);
+  CacheHTTPInfo *get(int idx);
+  void detach(int idx, CacheHTTPInfo * r);
+  void remove(int idx, bool destroy);
+  void clear(bool destroy = true);
+  void reset()
+  {
+    xcount = 0;
+    data.clear();
+  }
+  void print(char *buffer, size_t buf_size, bool temps = true);
+
+  int marshal_length();
+  int marshal(char *buf, int length);
+  uint32_t get_handles(const char *buf, int length, RefCountObj * block_ptr = NULL);
+  int unmarshal(const char *buf, int length, RefCountObj * block_ptr);
+
+  CacheArray<vec_info> data;
+  int xcount;
+  Ptr<RefCountObj> vector_buf;
+};
+
+TS_INLINE CacheHTTPInfo *
+CacheHTTPInfoVector::get(int idx)
+{
+  ink_assert(idx >= 0);
+  ink_assert(idx < xcount);
+  return &data[idx].alternate;
+}
+
+#endif /* __CACHE_HTTP_H__ */
diff --git a/iocore/cache/P_CacheInternal.h b/iocore/cache/P_CacheInternal.h
new file mode 100644
index 00000000..3b8987e0
--- /dev/null
+++ b/iocore/cache/P_CacheInternal.h
@@ -0,0 +1,1358 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef _P_CACHE_INTERNAL_H__
+#define _P_CACHE_INTERNAL_H__
+
+#include "libts.h"
+
+#ifdef HTTP_CACHE
+#include "HTTP.h"
+#include "P_CacheHttp.h"
+#endif
+
+struct EvacuationBlock;
+
+// Compilation Options
+
+#define ALTERNATES                      1
+// #define CACHE_LOCK_FAIL_RATE         0.001
+// #define CACHE_AGG_FAIL_RATE          0.005
+// #define CACHE_INSPECTOR_PAGES
+#define MAX_CACHE_VCS_PER_THREAD        500
+
+#define INTEGRAL_FRAGS                  4
+
+#ifdef CACHE_INSPECTOR_PAGES
+#ifdef DEBUG
+#define CACHE_STAT_PAGES
+#endif
+#endif
+
+#ifdef DEBUG
+#define DDebug Debug
+#else
+#define DDebug if (0) dummy_debug
+#endif
+
+#define AIO_SOFT_FAILURE                -100000
+// retry read from writer delay
+#define WRITER_RETRY_DELAY  HRTIME_MSECONDS(50)
+
+#ifndef CACHE_LOCK_FAIL_RATE
+#define CACHE_TRY_LOCK(_l, _m, _t) MUTEX_TRY_LOCK(_l, _m, _t)
+#else
+#define CACHE_TRY_LOCK(_l, _m, _t)                             \
+  MUTEX_TRY_LOCK(_l, _m, _t);                                  \
+  if ((uint32_t)_t->generator.random() <                         \
+     (uint32_t)(UINT_MAX *CACHE_LOCK_FAIL_RATE))                 \
+    CACHE_MUTEX_RELEASE(_l)
+#endif
+
+
+#define VC_LOCK_RETRY_EVENT() \
+  do { \
+    trigger = mutex->thread_holding->schedule_in_local(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay), event); \
+    return EVENT_CONT; \
+  } while (0)
+
+#define VC_SCHED_LOCK_RETRY() \
+  do { \
+    trigger = mutex->thread_holding->schedule_in_local(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay)); \
+    return EVENT_CONT; \
+  } while (0)
+
+#define CONT_SCHED_LOCK_RETRY_RET(_c) \
+  do { \
+    _c->mutex->thread_holding->schedule_in_local(_c, HRTIME_MSECONDS(cache_config_mutex_retry_delay)); \
+    return EVENT_CONT; \
+  } while (0)
+
+#define CONT_SCHED_LOCK_RETRY(_c) \
+  _c->mutex->thread_holding->schedule_in_local(_c, HRTIME_MSECONDS(cache_config_mutex_retry_delay))
+
+#define VC_SCHED_WRITER_RETRY() \
+  do { \
+    ink_assert(!trigger); \
+    writer_lock_retry++; \
+    ink_hrtime _t = WRITER_RETRY_DELAY; \
+    if (writer_lock_retry > 2) \
+      _t = WRITER_RETRY_DELAY * 2; \
+    else if (writer_lock_retry > 5) \
+      _t = WRITER_RETRY_DELAY * 10; \
+    else if (writer_lock_retry > 10) \
+      _t = WRITER_RETRY_DELAY * 100; \
+    trigger = mutex->thread_holding->schedule_in_local(this, _t); \
+    return EVENT_CONT; \
+  } while (0)
+
+
+  // cache stats definitions
+enum
+{
+  cache_bytes_used_stat,
+  cache_bytes_total_stat,
+  cache_ram_cache_bytes_stat,
+  cache_ram_cache_bytes_total_stat,
+  cache_direntries_total_stat,
+  cache_direntries_used_stat,
+  cache_ram_cache_hits_stat,
+  cache_ram_cache_misses_stat,
+  cache_pread_count_stat,
+  cache_percent_full_stat,
+  cache_lookup_active_stat,
+  cache_lookup_success_stat,
+  cache_lookup_failure_stat,
+  cache_read_active_stat,
+  cache_read_success_stat,
+  cache_read_failure_stat,
+#if TS_USE_INTERIM_CACHE == 1
+  cache_interim_read_success_stat,
+  cache_disk_read_success_stat,
+  cache_ram_read_success_stat,
+#endif
+  cache_write_active_stat,
+  cache_write_success_stat,
+  cache_write_failure_stat,
+  cache_write_backlog_failure_stat,
+  cache_update_active_stat,
+  cache_update_success_stat,
+  cache_update_failure_stat,
+  cache_remove_active_stat,
+  cache_remove_success_stat,
+  cache_remove_failure_stat,
+  cache_evacuate_active_stat,
+  cache_evacuate_success_stat,
+  cache_evacuate_failure_stat,
+  cache_scan_active_stat,
+  cache_scan_success_stat,
+  cache_scan_failure_stat,
+  cache_directory_collision_count_stat,
+  cache_single_fragment_document_count_stat,
+  cache_two_fragment_document_count_stat,
+  cache_three_plus_plus_fragment_document_count_stat,
+  cache_read_busy_success_stat,
+  cache_read_busy_failure_stat,
+  cache_gc_bytes_evacuated_stat,
+  cache_gc_frags_evacuated_stat,
+  cache_write_bytes_stat,
+  cache_hdr_vector_marshal_stat,
+  cache_hdr_marshal_stat,
+  cache_hdr_marshal_bytes_stat,
+  cache_stat_count
+};
+
+
+extern RecRawStatBlock *cache_rsb;
+
+#define GLOBAL_CACHE_SET_DYN_STAT(x,y) \
+	RecSetGlobalRawStatSum(cache_rsb, (x), (y))
+
+#define CACHE_SET_DYN_STAT(x,y) \
+	RecSetGlobalRawStatSum(cache_rsb, (x), (y)) \
+	RecSetGlobalRawStatSum(vol->cache_vol->vol_rsb, (x), (y))
+
+#define CACHE_INCREMENT_DYN_STAT(x) \
+	RecIncrRawStat(cache_rsb, mutex->thread_holding, (int) (x), 1); \
+	RecIncrRawStat(vol->cache_vol->vol_rsb, mutex->thread_holding, (int) (x), 1);
+
+#define CACHE_DECREMENT_DYN_STAT(x) \
+	RecIncrRawStat(cache_rsb, mutex->thread_holding, (int) (x), -1); \
+	RecIncrRawStat(vol->cache_vol->vol_rsb, mutex->thread_holding, (int) (x), -1);
+
+#define CACHE_VOL_SUM_DYN_STAT(x,y) \
+        RecIncrRawStat(vol->cache_vol->vol_rsb, mutex->thread_holding, (int) (x), (int64_t) y);
+
+#define CACHE_SUM_DYN_STAT(x, y) \
+	RecIncrRawStat(cache_rsb, mutex->thread_holding, (int) (x), (int64_t) (y)); \
+	RecIncrRawStat(vol->cache_vol->vol_rsb, mutex->thread_holding, (int) (x), (int64_t) (y));
+
+#define CACHE_SUM_DYN_STAT_THREAD(x, y) \
+	RecIncrRawStat(cache_rsb, this_ethread(), (int) (x), (int64_t) (y)); \
+	RecIncrRawStat(vol->cache_vol->vol_rsb, this_ethread(), (int) (x), (int64_t) (y));
+
+#define GLOBAL_CACHE_SUM_GLOBAL_DYN_STAT(x, y) \
+	RecIncrGlobalRawStatSum(cache_rsb,(x),(y))
+
+#define CACHE_SUM_GLOBAL_DYN_STAT(x, y) \
+	RecIncrGlobalRawStatSum(cache_rsb,(x),(y)) \
+	RecIncrGlobalRawStatSum(vol->cache_vol->vol_rsb,(x),(y))
+
+#define CACHE_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(cache_rsb, (x), 0); \
+	RecSetRawStatCount(cache_rsb, (x), 0); \
+	RecSetRawStatSum(vol->cache_vol->vol_rsb, (x), 0); \
+	RecSetRawStatCount(vol->cache_vol->vol_rsb, (x), 0); \
+} while (0);
+
+// Configuration
+extern int cache_config_dir_sync_frequency;
+extern int cache_config_http_max_alts;
+extern int cache_config_permit_pinning;
+extern int cache_config_select_alternate;
+extern int cache_config_vary_on_user_agent;
+extern int cache_config_max_doc_size;
+extern int cache_config_min_average_object_size;
+extern int cache_config_agg_write_backlog;
+extern int cache_config_enable_checksum;
+extern int cache_config_alt_rewrite_max_size;
+extern int cache_config_read_while_writer;
+extern int cache_clustering_enabled;
+extern int cache_config_agg_write_backlog;
+extern int cache_config_ram_cache_compress;
+extern int cache_config_ram_cache_compress_percent;
+extern int cache_config_ram_cache_use_seen_filter;
+extern int cache_config_hit_evacuate_percent;
+extern int cache_config_hit_evacuate_size_limit;
+extern int cache_config_force_sector_size;
+extern int cache_config_target_fragment_size;
+extern int cache_config_mutex_retry_delay;
+#if TS_USE_INTERIM_CACHE == 1
+extern int good_interim_disks;
+#endif
+// CacheVC
+struct CacheVC: public CacheVConnection
+{
+  CacheVC();
+
+  VIO *do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf);
+  VIO *do_io_pread(Continuation *c, int64_t nbytes, MIOBuffer *buf, int64_t offset);
+  VIO *do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner = false);
+  void do_io_close(int lerrno = -1);
+  void reenable(VIO *avio);
+  void reenable_re(VIO *avio);
+  bool get_data(int i, void *data);
+  bool set_data(int i, void *data);
+
+  bool is_ram_cache_hit() const
+  {
+    ink_assert(vio.op == VIO::READ);
+    return !f.not_from_ram_cache;
+  }
+  int get_header(void **ptr, int *len)
+  {
+    if (first_buf.m_ptr) {
+      Doc *doc = (Doc*)first_buf->data();
+      *ptr = doc->hdr();
+      *len = doc->hlen;
+      return 0;
+    } else
+      return -1;
+  }
+  int set_header(void *ptr, int len)
+  {
+    header_to_write = ptr;
+    header_to_write_len = len;
+    return 0;
+  }
+  int get_single_data(void **ptr, int *len)
+  {
+    if (first_buf.m_ptr) {
+      Doc *doc = (Doc*)first_buf->data();
+      if (doc->data_len() == doc->total_len) {
+        *ptr = doc->data();
+        *len = doc->data_len();
+        return 0;
+      }
+    }
+    return -1;
+  }
+
+  bool writer_done();
+  int calluser(int event);
+  int callcont(int event);
+  int die();
+  int dead(int event, Event *e);
+
+  int handleReadDone(int event, Event *e);
+  int handleRead(int event, Event *e);
+  int do_read_call(CacheKey *akey);
+  int handleWrite(int event, Event *e);
+  int handleWriteLock(int event, Event *e);
+  int do_write_call();
+  int do_write_lock();
+  int do_write_lock_call();
+  int do_sync(uint32_t target_write_serial);
+
+  int openReadClose(int event, Event *e);
+  int openReadReadDone(int event, Event *e);
+  int openReadMain(int event, Event *e);
+  int openReadStartEarliest(int event, Event *e);
+#ifdef HTTP_CACHE
+  int openReadVecWrite(int event, Event *e);
+#endif
+  int openReadStartHead(int event, Event *e);
+  int openReadFromWriter(int event, Event *e);
+  int openReadFromWriterMain(int event, Event *e);
+  int openReadFromWriterFailure(int event, Event *);
+  int openReadChooseWriter(int event, Event *e);
+
+  int openWriteCloseDir(int event, Event *e);
+  int openWriteCloseHeadDone(int event, Event *e);
+  int openWriteCloseHead(int event, Event *e);
+  int openWriteCloseDataDone(int event, Event *e);
+  int openWriteClose(int event, Event *e);
+  int openWriteRemoveVector(int event, Event *e);
+  int openWriteWriteDone(int event, Event *e);
+  int openWriteOverwrite(int event, Event *e);
+  int openWriteMain(int event, Event *e);
+  int openWriteStartDone(int event, Event *e);
+  int openWriteStartBegin(int event, Event *e);
+
+  int updateVector(int event, Event *e);
+  int updateReadDone(int event, Event *e);
+  int updateVecWrite(int event, Event *e);
+
+  int removeEvent(int event, Event *e);
+
+  int linkWrite(int event, Event *e);
+  int derefRead(int event, Event *e);
+
+  int scanVol(int event, Event *e);
+  int scanObject(int event, Event *e);
+  int scanUpdateDone(int event, Event *e);
+  int scanOpenWrite(int event, Event *e);
+  int scanRemoveDone(int event, Event *e);
+
+  int is_io_in_progress()
+  {
+    return io.aiocb.aio_fildes != AIO_NOT_IN_PROGRESS;
+  }
+  void set_io_not_in_progress()
+  {
+    io.aiocb.aio_fildes = AIO_NOT_IN_PROGRESS;
+  }
+  void set_agg_write_in_progress()
+  {
+    io.aiocb.aio_fildes = AIO_AGG_WRITE_IN_PROGRESS;
+  }
+  int evacuateDocDone(int event, Event *e);
+  int evacuateReadHead(int event, Event *e);
+
+  void cancel_trigger();
+  virtual int64_t get_object_size();
+#ifdef HTTP_CACHE
+  virtual void set_http_info(CacheHTTPInfo *info);
+  virtual void get_http_info(CacheHTTPInfo ** info);
+  /** Get the fragment table.
+      @return The address of the start of the fragment table,
+      or @c NULL if there is no fragment table.
+  */
+  virtual HTTPInfo::FragOffset* get_frag_table();
+#endif
+  virtual bool is_pread_capable();
+  virtual bool set_pin_in_cache(time_t time_pin);
+  virtual time_t get_pin_in_cache();
+  virtual bool set_disk_io_priority(int priority);
+  virtual int get_disk_io_priority();
+
+  // offsets from the base stat
+#define CACHE_STAT_ACTIVE  0
+#define CACHE_STAT_SUCCESS 1
+#define CACHE_STAT_FAILURE 2
+
+  // number of bytes to memset to 0 in the CacheVC when we free
+  // it. All member variables starting from vio are memset to 0.
+  // This variable is initialized in CacheVC constructor.
+  static int size_to_init;
+
+  // Start Region A
+  // This set of variables are not reset when the cacheVC is freed.
+  // A CacheVC must set these to the correct values whenever needed
+  // These are variables that are always set to the correct values
+  // before being used by the CacheVC
+  CacheKey key, first_key, earliest_key, update_key;
+  Dir dir, earliest_dir, overwrite_dir, first_dir;
+  // end Region A
+
+  // Start Region B
+  // These variables are individually cleared or reset when the
+  // CacheVC is freed. All these variables must be reset/cleared
+  // in free_CacheVC.
+  Action _action;
+#ifdef HTTP_CACHE
+  CacheHTTPHdr request;
+#endif
+  CacheHTTPInfoVector vector;
+  CacheHTTPInfo alternate;
+  Ptr<IOBufferData> buf;
+  Ptr<IOBufferData> first_buf;
+  Ptr<IOBufferBlock> blocks; // data available to write
+  Ptr<IOBufferBlock> writer_buf;
+
+  OpenDirEntry *od;
+  AIOCallbackInternal io;
+  int alternate_index;          // preferred position in vector
+  LINK(CacheVC, opendir_link);
+#ifdef CACHE_STAT_PAGES
+  LINK(CacheVC, stat_link);
+#endif
+  // end Region B
+
+  // Start Region C
+  // These variables are memset to 0 when the structure is freed.
+  // The size of this region is size_to_init which is initialized
+  // in the CacheVC constuctor. It assumes that vio is the start
+  // of this region.
+  // NOTE: NOTE: NOTE: If vio is NOT the start, then CHANGE the
+  // size_to_init initialization
+  VIO vio;
+  EThread *initial_thread;  // initial thread open_XX was called on
+  CacheFragType frag_type;
+  CacheHTTPInfo *info;
+  CacheHTTPInfoVector *write_vector;
+#ifdef HTTP_CACHE
+  CacheLookupHttpConfig *params;
+#endif
+  int header_len;       // for communicating with agg_copy
+  int frag_len;         // for communicating with agg_copy
+  uint32_t write_len;     // for communicating with agg_copy
+  uint32_t agg_len;       // for communicating with aggWrite
+  uint32_t write_serial;  // serial of the final write for SYNC
+  Vol *vol;
+  Dir *last_collision;
+  Event *trigger;
+  CacheKey *read_key;
+  ContinuationHandler save_handler;
+  uint32_t pin_in_cache;
+  ink_hrtime start_time;
+  int base_stat;
+  int recursive;
+  int closed;
+  uint64_t seek_to;               // pread offset
+  int64_t offset;                 // offset into 'blocks' of data to write
+  int64_t writer_offset;          // offset of the writer for reading from a writer
+  int64_t length;                 // length of data available to write
+  int64_t doc_pos;                // read position in 'buf'
+  uint64_t write_pos;             // length written
+  uint64_t total_len;             // total length written and available to write
+  uint64_t doc_len;               // total_length (of the selected alternate for HTTP)
+  uint64_t update_len;
+  int fragment;
+  int scan_msec_delay;
+  CacheVC *write_vc;
+  char *hostname;
+  int host_len;
+  int header_to_write_len;
+  void *header_to_write;
+  short writer_lock_retry;
+#if TS_USE_INTERIM_CACHE == 1
+  InterimCacheVol *interim_vol;
+  MigrateToInterimCache *mts;
+  uint64_t dir_off;
+#endif
+  union
+  {
+    uint32_t flags;
+    struct
+    {
+      unsigned int use_first_key:1;
+      unsigned int overwrite:1; // overwrite first_key Dir if it exists
+      unsigned int close_complete:1; // WRITE_COMPLETE is final
+      unsigned int sync:1; // write to be committed to durable storage before WRITE_COMPLETE
+      unsigned int evacuator:1;
+      unsigned int single_fragment:1;
+      unsigned int evac_vector:1;
+      unsigned int lookup:1;
+      unsigned int update:1;
+      unsigned int remove:1;
+      unsigned int remove_aborted_writers:1;
+      unsigned int open_read_timeout:1; // UNUSED
+      unsigned int data_done:1;
+      unsigned int read_from_writer_called:1;
+      unsigned int not_from_ram_cache:1;        // entire object was from ram cache
+      unsigned int rewrite_resident_alt:1;
+      unsigned int readers:1;
+      unsigned int doc_from_ram_cache:1;
+      unsigned int hit_evacuate:1;
+#if TS_USE_INTERIM_CACHE == 1
+      unsigned int read_from_interim:1;
+      unsigned int write_into_interim:1;
+      unsigned int ram_fixup:1;
+      unsigned int transistor:1;
+#endif
+#ifdef HTTP_CACHE
+      unsigned int allow_empty_doc:1; // used for cache empty http document
+#endif
+    } f;
+  };
+  // BTF optimization used to skip reading stuff in cache partition that doesn't contain any
+  // dir entries.
+  char *scan_vol_map; 
+  // BTF fix to handle objects that overlapped over two different reads,
+  // this is how much we need to back up the buffer to get the start of the overlapping object.
+  off_t scan_fix_buffer_offset;
+  //end region C
+};
+
+#define PUSH_HANDLER(_x) do {                                           \
+    ink_assert(handler != (ContinuationHandler)(&CacheVC::dead));       \
+    save_handler = handler; handler = (ContinuationHandler)(_x);        \
+} while (0)
+
+#define POP_HANDLER do {                                          \
+    handler = save_handler;                                       \
+    ink_assert(handler != (ContinuationHandler)(&CacheVC::dead)); \
+  } while (0)
+
+struct CacheRemoveCont: public Continuation
+{
+  int event_handler(int event, void *data);
+
+  CacheRemoveCont()
+    : Continuation(NULL)
+  { }
+};
+
+
+// Global Data
+#if TS_USE_INTERIM_CACHE == 1
+extern ClassAllocator<MigrateToInterimCache> migrateToInterimCacheAllocator;
+#endif
+extern ClassAllocator<CacheVC> cacheVConnectionAllocator;
+extern CacheKey zero_key;
+extern CacheSync *cacheDirSync;
+// Function Prototypes
+#ifdef HTTP_CACHE
+int cache_write(CacheVC *, CacheHTTPInfoVector *);
+int get_alternate_index(CacheHTTPInfoVector *cache_vector, CacheKey key);
+#endif
+CacheVC *new_DocEvacuator(int nbytes, Vol *d);
+
+// inline Functions
+
+TS_INLINE CacheVC *
+new_CacheVC(Continuation *cont)
+{
+  EThread *t = cont->mutex->thread_holding;
+  CacheVC *c = THREAD_ALLOC(cacheVConnectionAllocator, t);
+#ifdef HTTP_CACHE
+  c->vector.data.data = &c->vector.data.fast_data[0];
+#endif
+  c->_action = cont;
+  c->initial_thread = t->tt == DEDICATED ? NULL : t;
+  c->mutex = cont->mutex;
+  c->start_time = ink_get_hrtime();
+  ink_assert(c->trigger == NULL);
+  Debug("cache_new", "new %p", c);
+#ifdef CACHE_STAT_PAGES
+  ink_assert(!c->stat_link.next);
+  ink_assert(!c->stat_link.prev);
+#endif
+  dir_clear(&c->dir);
+  return c;
+}
+
+TS_INLINE int
+free_CacheVC(CacheVC *cont)
+{
+  Debug("cache_free", "free %p", cont);
+  ProxyMutex *mutex = cont->mutex;
+  Vol *vol = cont->vol;
+  if (vol) {
+    CACHE_DECREMENT_DYN_STAT(cont->base_stat + CACHE_STAT_ACTIVE);
+    if (cont->closed > 0) {
+      CACHE_INCREMENT_DYN_STAT(cont->base_stat + CACHE_STAT_SUCCESS);
+#if TS_USE_INTERIM_CACHE == 1
+      if (cont->vio.op == VIO::READ) {
+        if (cont->f.doc_from_ram_cache) {
+          CACHE_INCREMENT_DYN_STAT(cache_ram_read_success_stat);
+        } else if (cont->f.read_from_interim) {
+          CACHE_INCREMENT_DYN_STAT(cache_interim_read_success_stat);
+        } else {
+          CACHE_INCREMENT_DYN_STAT(cache_disk_read_success_stat);
+        }
+      }
+#endif
+    }                             // else abort,cancel
+  }
+  ink_assert(mutex->thread_holding == this_ethread());
+  if (cont->trigger)
+    cont->trigger->cancel();
+  ink_assert(!cont->is_io_in_progress());
+  ink_assert(!cont->od);
+  /* calling cont->io.action = NULL causes compile problem on 2.6 solaris
+     release build....wierd??? For now, null out continuation and mutex
+     of the action separately */
+  cont->io.action.continuation = NULL;
+  cont->io.action.mutex = NULL;
+  cont->io.mutex.clear();
+  cont->io.aio_result = 0;
+  cont->io.aiocb.aio_nbytes = 0;
+  cont->io.aiocb.aio_reqprio = AIO_DEFAULT_PRIORITY;
+#ifdef HTTP_CACHE
+  cont->request.reset();
+  cont->vector.clear();
+#endif
+  cont->vio.buffer.clear();
+  cont->vio.mutex.clear();
+#ifdef HTTP_CACHE
+  if (cont->vio.op == VIO::WRITE && cont->alternate_index == CACHE_ALT_INDEX_DEFAULT)
+    cont->alternate.destroy();
+  else
+    cont->alternate.clear();
+#endif
+  cont->_action.cancelled = 0;
+  cont->_action.mutex.clear();
+  cont->mutex.clear();
+  cont->buf.clear();
+  cont->first_buf.clear();
+  cont->blocks.clear();
+  cont->writer_buf.clear();
+  cont->alternate_index = CACHE_ALT_INDEX_DEFAULT;
+  if (cont->scan_vol_map)
+    ats_free(cont->scan_vol_map);
+  memset((char *) &cont->vio, 0, cont->size_to_init);
+#ifdef CACHE_STAT_PAGES
+  ink_assert(!cont->stat_link.next && !cont->stat_link.prev);
+#endif
+#ifdef DEBUG
+  SET_CONTINUATION_HANDLER(cont, &CacheVC::dead);
+#endif
+  THREAD_FREE(cont, cacheVConnectionAllocator, this_thread());
+  return EVENT_DONE;
+}
+
+TS_INLINE int
+CacheVC::calluser(int event)
+{
+  recursive++;
+  ink_assert(!vol || this_ethread() != vol->mutex->thread_holding);
+  vio._cont->handleEvent(event, (void *) &vio);
+  recursive--;
+  if (closed) {
+    die();
+    return EVENT_DONE;
+  }
+  return EVENT_CONT;
+}
+
+TS_INLINE int
+CacheVC::callcont(int event)
+{
+  recursive++;
+  ink_assert(!vol || this_ethread() != vol->mutex->thread_holding);
+  _action.continuation->handleEvent(event, this);
+  recursive--;
+  if (closed)
+    die();
+  else if (vio.vc_server)
+    handleEvent(EVENT_IMMEDIATE, 0);
+  return EVENT_DONE;
+}
+
+TS_INLINE int
+CacheVC::do_read_call(CacheKey *akey)
+{
+  doc_pos = 0;
+  read_key = akey;
+  io.aiocb.aio_nbytes = dir_approx_size(&dir);
+#if TS_USE_INTERIM_CACHE == 1
+  interim_vol = NULL;
+  ink_assert(mts == NULL);
+  mts = NULL;
+  f.write_into_interim = 0;
+  f.ram_fixup = 0;
+  f.transistor = 0;
+  f.read_from_interim = dir_ininterim(&dir);
+
+  if (!f.read_from_interim && vio.op == VIO::READ && good_interim_disks > 0){
+    vol->history.put_key(read_key);
+    if (vol->history.is_hot(read_key) && !vol->migrate_probe(read_key, NULL) && !od) {
+      f.write_into_interim = 1;
+    }
+  }
+  if (f.read_from_interim) {
+    interim_vol = &vol->interim_vols[dir_get_index(&dir)];
+    if (vio.op == VIO::READ && vol_transistor_range_valid(interim_vol, &dir)
+        && !vol->migrate_probe(read_key, NULL) && !od)
+      f.transistor = 1;
+  }
+  if (f.write_into_interim || f.transistor) {
+    mts = migrateToInterimCacheAllocator.alloc();
+    mts->vc = this;
+    mts->key = *read_key;
+    mts->rewrite = (f.transistor == 1);
+    dir_assign(&mts->dir, &dir);
+    vol->set_migrate_in_progress(mts);
+  }
+#endif
+  PUSH_HANDLER(&CacheVC::handleRead);
+  return handleRead(EVENT_CALL, 0);
+}
+
+TS_INLINE int
+CacheVC::do_write_call()
+{
+  PUSH_HANDLER(&CacheVC::handleWrite);
+  return handleWrite(EVENT_CALL, 0);
+}
+
+TS_INLINE void
+CacheVC::cancel_trigger()
+{
+  if (trigger) {
+    trigger->cancel_action();
+    trigger = NULL;
+  }
+}
+
+TS_INLINE int
+CacheVC::die()
+{
+  if (vio.op == VIO::WRITE) {
+#ifdef HTTP_CACHE
+    if (f.update && total_len) {
+      alternate.object_key_set(earliest_key);
+    }
+#endif
+    if (!is_io_in_progress()) {
+      SET_HANDLER(&CacheVC::openWriteClose);
+      if (!recursive)
+        openWriteClose(EVENT_NONE, NULL);
+    }                           // else catch it at the end of openWriteWriteDone
+    return EVENT_CONT;
+  } else {
+    if (is_io_in_progress())
+      save_handler = (ContinuationHandler) & CacheVC::openReadClose;
+    else {
+      SET_HANDLER(&CacheVC::openReadClose);
+      if (!recursive)
+        openReadClose(EVENT_NONE, NULL);
+    }
+    return EVENT_CONT;
+  }
+}
+
+TS_INLINE int
+CacheVC::handleWriteLock(int /* event ATS_UNUSED */, Event *e)
+{
+  cancel_trigger();
+  int ret = 0;
+  {
+    CACHE_TRY_LOCK(lock, vol->mutex, mutex->thread_holding);
+    if (!lock) {
+      set_agg_write_in_progress();
+      trigger = mutex->thread_holding->schedule_in_local(this, HRTIME_MSECONDS(cache_config_mutex_retry_delay));
+      return EVENT_CONT;
+    }
+    ret = handleWrite(EVENT_CALL, e);
+  }
+  if (ret == EVENT_RETURN)
+    return handleEvent(AIO_EVENT_DONE, 0);
+  return EVENT_CONT;
+}
+
+TS_INLINE int
+CacheVC::do_write_lock()
+{
+  PUSH_HANDLER(&CacheVC::handleWriteLock);
+  return handleWriteLock(EVENT_NONE, 0);
+}
+
+TS_INLINE int
+CacheVC::do_write_lock_call()
+{
+  PUSH_HANDLER(&CacheVC::handleWriteLock);
+  return handleWriteLock(EVENT_CALL, 0);
+}
+
+TS_INLINE bool
+CacheVC::writer_done()
+{
+  OpenDirEntry *cod = od;
+  if (!cod)
+    cod = vol->open_read(&first_key);
+  CacheVC *w = (cod) ? cod->writers.head : NULL;
+  // If the write vc started after the reader, then its not the
+  // original writer, since we never choose a writer that started
+  // after the reader. The original writer was deallocated and then
+  // reallocated for the same first_key
+  for (; w && (w != write_vc || w->start_time > start_time); w = (CacheVC *) w->opendir_link.next);
+  if (!w)
+    return true;
+  return false;
+}
+
+TS_INLINE int
+Vol::close_write(CacheVC *cont)
+{
+#ifdef CACHE_STAT_PAGES
+  ink_assert(stat_cache_vcs.head);
+  stat_cache_vcs.remove(cont, cont->stat_link);
+  ink_assert(!cont->stat_link.next && !cont->stat_link.prev);
+#endif
+  return open_dir.close_write(cont);
+}
+
+// Returns 0 on success or a positive error code on failure
+TS_INLINE int
+Vol::open_write(CacheVC *cont, int allow_if_writers, int max_writers)
+{
+  Vol *vol = this;
+  bool agg_error = false;
+  if (!cont->f.remove) {
+    agg_error = (!cont->f.update && agg_todo_size > cache_config_agg_write_backlog);
+#ifdef CACHE_AGG_FAIL_RATE
+    agg_error = agg_error || ((uint32_t) mutex->thread_holding->generator.random() <
+                              (uint32_t) (UINT_MAX * CACHE_AGG_FAIL_RATE));
+#endif
+  }
+  if (agg_error) {
+    CACHE_INCREMENT_DYN_STAT(cache_write_backlog_failure_stat);
+    return ECACHE_WRITE_FAIL;
+  }
+#if TS_USE_INTERIM_CACHE == 1
+  MigrateToInterimCache *m_result = NULL;
+  if (vol->migrate_probe(&cont->first_key, &m_result)) {
+    m_result->notMigrate = true;
+  }
+#endif
+  if (open_dir.open_write(cont, allow_if_writers, max_writers)) {
+#ifdef CACHE_STAT_PAGES
+    ink_assert(cont->mutex->thread_holding == this_ethread());
+    ink_assert(!cont->stat_link.next && !cont->stat_link.prev);
+    stat_cache_vcs.enqueue(cont, cont->stat_link);
+#endif
+    return 0;
+  }
+  return ECACHE_DOC_BUSY;
+}
+
+TS_INLINE int
+Vol::close_write_lock(CacheVC *cont)
+{
+  EThread *t = cont->mutex->thread_holding;
+  CACHE_TRY_LOCK(lock, mutex, t);
+  if (!lock)
+    return -1;
+  return close_write(cont);
+}
+
+TS_INLINE int
+Vol::open_write_lock(CacheVC *cont, int allow_if_writers, int max_writers)
+{
+  EThread *t = cont->mutex->thread_holding;
+  CACHE_TRY_LOCK(lock, mutex, t);
+  if (!lock)
+    return -1;
+  return open_write(cont, allow_if_writers, max_writers);
+}
+
+TS_INLINE OpenDirEntry *
+Vol::open_read_lock(INK_MD5 *key, EThread *t)
+{
+  CACHE_TRY_LOCK(lock, mutex, t);
+  if (!lock)
+    return NULL;
+  return open_dir.open_read(key);
+}
+
+TS_INLINE int
+Vol::begin_read_lock(CacheVC *cont)
+{
+  // no need for evacuation as the entire document is already in memory
+#ifndef  CACHE_STAT_PAGES
+  if (cont->f.single_fragment)
+    return 0;
+#endif
+  // VC is enqueued in stat_cache_vcs in the begin_read call
+  EThread *t = cont->mutex->thread_holding;
+  CACHE_TRY_LOCK(lock, mutex, t);
+  if (!lock)
+    return -1;
+  return begin_read(cont);
+}
+
+TS_INLINE int
+Vol::close_read_lock(CacheVC *cont)
+{
+  EThread *t = cont->mutex->thread_holding;
+  CACHE_TRY_LOCK(lock, mutex, t);
+  if (!lock)
+    return -1;
+  return close_read(cont);
+}
+
+TS_INLINE int
+dir_delete_lock(CacheKey *key, Vol *d, ProxyMutex *m, Dir *del)
+{
+  EThread *thread = m->thread_holding;
+  CACHE_TRY_LOCK(lock, d->mutex, thread);
+  if (!lock)
+    return -1;
+  return dir_delete(key, d, del);
+}
+
+TS_INLINE int
+dir_insert_lock(CacheKey *key, Vol *d, Dir *to_part, ProxyMutex *m)
+{
+  EThread *thread = m->thread_holding;
+  CACHE_TRY_LOCK(lock, d->mutex, thread);
+  if (!lock)
+    return -1;
+  return dir_insert(key, d, to_part);
+}
+
+TS_INLINE int
+dir_overwrite_lock(CacheKey *key, Vol *d, Dir *to_part, ProxyMutex *m, Dir *overwrite, bool must_overwrite = true)
+{
+  EThread *thread = m->thread_holding;
+  CACHE_TRY_LOCK(lock, d->mutex, thread);
+  if (!lock)
+    return -1;
+  return dir_overwrite(key, d, to_part, overwrite, must_overwrite);
+}
+
+void TS_INLINE
+rand_CacheKey(CacheKey *next_key, ProxyMutex *mutex)
+{
+  next_key->b[0] = mutex->thread_holding->generator.random();
+  next_key->b[1] = mutex->thread_holding->generator.random();
+}
+
+extern uint8_t CacheKey_next_table[];
+void TS_INLINE
+next_CacheKey(CacheKey *next_key, CacheKey *key)
+{
+  uint8_t *b = (uint8_t *) next_key;
+  uint8_t *k = (uint8_t *) key;
+  b[0] = CacheKey_next_table[k[0]];
+  for (int i = 1; i < 16; i++)
+    b[i] = CacheKey_next_table[(b[i - 1] + k[i]) & 0xFF];
+}
+extern uint8_t CacheKey_prev_table[];
+void TS_INLINE
+prev_CacheKey(CacheKey *prev_key, CacheKey *key)
+{
+  uint8_t *b = (uint8_t *) prev_key;
+  uint8_t *k = (uint8_t *) key;
+  for (int i = 15; i > 0; i--)
+    b[i] = 256 + CacheKey_prev_table[k[i]] - k[i - 1];
+  b[0] = CacheKey_prev_table[k[0]];
+}
+
+TS_INLINE unsigned int
+next_rand(unsigned int *p)
+{
+  unsigned int seed = *p;
+  seed = 1103515145 * seed + 12345;
+  *p = seed;
+  return seed;
+}
+
+extern ClassAllocator<CacheRemoveCont> cacheRemoveContAllocator;
+
+TS_INLINE CacheRemoveCont *
+new_CacheRemoveCont()
+{
+  CacheRemoveCont *cache_rm = cacheRemoveContAllocator.alloc();
+
+  cache_rm->mutex = new_ProxyMutex();
+  SET_CONTINUATION_HANDLER(cache_rm, &CacheRemoveCont::event_handler);
+  return cache_rm;
+}
+
+TS_INLINE void
+free_CacheRemoveCont(CacheRemoveCont *cache_rm)
+{
+  cache_rm->mutex = NULL;
+  cacheRemoveContAllocator.free(cache_rm);
+}
+
+TS_INLINE int
+CacheRemoveCont::event_handler(int event, void *data)
+{
+  (void) event;
+  (void) data;
+  free_CacheRemoveCont(this);
+  return EVENT_DONE;
+}
+
+int64_t cache_bytes_used(void);
+int64_t cache_bytes_total(void);
+
+#ifdef DEBUG
+#define CACHE_DEBUG_INCREMENT_DYN_STAT(_x) CACHE_INCREMENT_DYN_STAT(_x)
+#define CACHE_DEBUG_SUM_DYN_STAT(_x,_y) CACHE_SUM_DYN_STAT(_x,_y)
+#else
+#define CACHE_DEBUG_INCREMENT_DYN_STAT(_x)
+#define CACHE_DEBUG_SUM_DYN_STAT(_x,_y)
+#endif
+
+struct CacheHostRecord;
+struct Vol;
+class CacheHostTable;
+
+struct Cache
+{
+  volatile int cache_read_done;
+  volatile int total_good_nvol;
+  volatile int total_nvol;
+  volatile int ready;
+  int64_t cache_size;             //in store block size
+  CacheHostTable *hosttable;
+  volatile int total_initialized_vol;
+  CacheType scheme;
+
+  int open(bool reconfigure, bool fix);
+  int close();
+
+  Action *lookup(Continuation *cont, CacheKey *key, CacheFragType type, char *hostname, int host_len);
+  inkcoreapi Action *open_read(Continuation *cont, CacheKey *key, CacheFragType type, char *hostname, int len);
+  inkcoreapi Action *open_write(Continuation *cont, CacheKey *key,
+                                CacheFragType frag_type, int options = 0,
+                                time_t pin_in_cache = (time_t) 0, char *hostname = 0, int host_len = 0);
+  inkcoreapi Action *remove(Continuation *cont, CacheKey *key,
+                            CacheFragType type = CACHE_FRAG_TYPE_HTTP,
+                            bool user_agents = true, bool link = false,
+                            char *hostname = 0, int host_len = 0);
+  Action *scan(Continuation *cont, char *hostname = 0, int host_len = 0, int KB_per_second = 2500);
+
+#ifdef HTTP_CACHE
+  Action *lookup(Continuation *cont, URL *url, CacheFragType type);
+  inkcoreapi Action *open_read(Continuation *cont, CacheKey *key,
+                               CacheHTTPHdr *request,
+                               CacheLookupHttpConfig *params, CacheFragType type, char *hostname, int host_len);
+  Action *open_read(Continuation *cont, URL *url, CacheHTTPHdr *request,
+                    CacheLookupHttpConfig *params, CacheFragType type);
+  Action *open_write(Continuation *cont, CacheKey *key,
+                     CacheHTTPInfo *old_info, time_t pin_in_cache = (time_t) 0,
+                     CacheKey *key1 = NULL,
+                     CacheFragType type = CACHE_FRAG_TYPE_HTTP, char *hostname = 0, int host_len = 0);
+  Action *open_write(Continuation *cont, URL *url, CacheHTTPHdr *request,
+                     CacheHTTPInfo *old_info, time_t pin_in_cache = (time_t) 0,
+                     CacheFragType type = CACHE_FRAG_TYPE_HTTP);
+  static void generate_key(INK_MD5 *md5, URL *url);
+#endif
+
+  Action *link(Continuation *cont, CacheKey *from, CacheKey *to, CacheFragType type, char *hostname, int host_len);
+  Action *deref(Continuation *cont, CacheKey *key, CacheFragType type, char *hostname, int host_len);
+
+  void vol_initialized(bool result);
+
+  int open_done();
+
+  Vol *key_to_vol(CacheKey *key, char *hostname, int host_len);
+
+  Cache()
+    : cache_read_done(0), total_good_nvol(0), total_nvol(0), ready(CACHE_INITIALIZING), cache_size(0),  // in store block size
+      hosttable(NULL), total_initialized_vol(0), scheme(CACHE_NONE_TYPE)
+    { }
+};
+
+extern Cache *theCache;
+extern Cache *theStreamCache;
+inkcoreapi extern Cache *caches[NUM_CACHE_FRAG_TYPES];
+
+#ifdef HTTP_CACHE
+TS_INLINE Action *
+Cache::open_read(Continuation *cont, CacheURL *url, CacheHTTPHdr *request,
+                 CacheLookupHttpConfig *params, CacheFragType type)
+{
+  INK_MD5 md5;
+  int len;
+  url->MD5_get(&md5);
+  const char *hostname = url->host_get(&len);
+  return open_read(cont, &md5, request, params, type, (char *) hostname, len);
+}
+
+TS_INLINE void
+Cache::generate_key(INK_MD5 *md5, URL *url)
+{
+  url->MD5_get(md5);
+}
+
+TS_INLINE Action *
+Cache::open_write(Continuation *cont, CacheURL *url, CacheHTTPHdr *request,
+                  CacheHTTPInfo *old_info, time_t pin_in_cache, CacheFragType type)
+{
+  (void) request;
+  INK_MD5 url_md5;
+  url->MD5_get(&url_md5);
+  int len;
+  const char *hostname = url->host_get(&len);
+
+  return open_write(cont, &url_md5, old_info, pin_in_cache, NULL, type, (char *) hostname, len);
+}
+#endif
+
+TS_INLINE unsigned int
+cache_hash(INK_MD5 & md5)
+{
+  uint64_t f = md5.fold();
+  unsigned int mhash = (unsigned int) (f >> 32);
+  return mhash;
+}
+
+#ifdef HTTP_CACHE
+#define CLUSTER_CACHE
+#endif
+#ifdef CLUSTER_CACHE
+#include "P_Net.h"
+#include "P_ClusterInternal.h"
+// Note: This include must occur here in order to avoid numerous forward
+//       reference problems.
+#include "P_ClusterInline.h"
+#endif
+
+TS_INLINE Action *
+CacheProcessor::lookup(Continuation *cont, CacheKey *key, bool cluster_cache_local ATS_UNUSED,
+                       bool local_only ATS_UNUSED, CacheFragType frag_type, char *hostname, int host_len)
+{
+#ifdef CLUSTER_CACHE
+  // Try to send remote, if not possible, handle locally
+  if ((cache_clustering_enabled > 0) && !cluster_cache_local && !local_only) {
+    Action *a = Cluster_lookup(cont, key, frag_type, hostname, host_len);
+    if (a) {
+      return a;
+    }
+  }
+#endif
+  return caches[frag_type]->lookup(cont, key, frag_type, hostname, host_len);
+}
+
+TS_INLINE inkcoreapi Action *
+CacheProcessor::open_read(Continuation *cont, CacheKey *key, bool cluster_cache_local ATS_UNUSED,
+                          CacheFragType frag_type, char *hostname, int host_len)
+{
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    return open_read_internal(CACHE_OPEN_READ, cont, (MIOBuffer *) 0,
+                              (CacheURL *) 0, (CacheHTTPHdr *) 0,
+                              (CacheLookupHttpConfig *) 0, key, 0, frag_type, hostname, host_len);
+  }
+#endif
+  return caches[frag_type]->open_read(cont, key, frag_type, hostname, host_len);
+}
+
+TS_INLINE Action *
+CacheProcessor::open_read_buffer(Continuation *cont, MIOBuffer *buf ATS_UNUSED, CacheKey *key, CacheFragType frag_type,
+                                 char *hostname, int host_len)
+{
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0) {
+    return open_read_internal(CACHE_OPEN_READ_BUFFER, cont, buf,
+                              (CacheURL *) 0, (CacheHTTPHdr *) 0,
+                              (CacheLookupHttpConfig *) 0, key, 0, frag_type, hostname, host_len);
+  }
+#endif
+  return caches[frag_type]->open_read(cont, key, frag_type, hostname, host_len);
+}
+
+
+TS_INLINE inkcoreapi Action *
+CacheProcessor::open_write(Continuation *cont, CacheKey *key, bool cluster_cache_local  ATS_UNUSED,
+                           CacheFragType frag_type, int expected_size ATS_UNUSED, int options,
+                           time_t pin_in_cache, char *hostname, int host_len)
+{
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    ClusterMachine *m = cluster_machine_at_depth(cache_hash(*key));
+    if (m)
+      return Cluster_write(cont, expected_size, (MIOBuffer *) 0, m,
+                         key, frag_type, options, pin_in_cache,
+                         CACHE_OPEN_WRITE, key, (CacheURL *) 0,
+                         (CacheHTTPHdr *) 0, (CacheHTTPInfo *) 0, hostname, host_len);
+  }
+#endif
+  return caches[frag_type]->open_write(cont, key, frag_type, options, pin_in_cache, hostname, host_len);
+}
+
+TS_INLINE Action *
+CacheProcessor::open_write_buffer(Continuation *cont, MIOBuffer *buf, CacheKey *key,
+                                  CacheFragType frag_type, int options, time_t pin_in_cache,
+                                  char *hostname, int host_len)
+{
+  (void)pin_in_cache;
+  (void)cont;
+  (void)buf;
+  (void)key;
+  (void)frag_type;
+  (void)options;
+  (void)hostname;
+  (void)host_len;
+  ink_assert(!"implemented");
+  return NULL;
+}
+
+TS_INLINE Action *
+CacheProcessor::remove(Continuation *cont, CacheKey *key, bool cluster_cache_local ATS_UNUSED, CacheFragType frag_type,
+                       bool rm_user_agents, bool rm_link, char *hostname, int host_len)
+{
+  Debug("cache_remove", "[CacheProcessor::remove] Issuing cache delete for %u", cache_hash(*key));
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    ClusterMachine *m = cluster_machine_at_depth(cache_hash(*key));
+
+    if (m) {
+      return Cluster_remove(m, cont, key, rm_user_agents, rm_link, frag_type, hostname, host_len);
+    }
+  }
+#endif
+  return caches[frag_type]->remove(cont, key, frag_type, rm_user_agents, rm_link, hostname, host_len);
+}
+
+# if 0
+TS_INLINE Action *
+scan(Continuation *cont, char *hostname = 0, int host_len = 0, int KB_per_second = 2500)
+{
+  return caches[CACHE_FRAG_TYPE_HTTP]->scan(cont, hostname, host_len, KB_per_second);
+}
+# endif
+
+#ifdef HTTP_CACHE
+TS_INLINE Action *
+CacheProcessor::lookup(Continuation *cont, URL *url, bool cluster_cache_local, bool local_only, CacheFragType frag_type)
+{
+  (void) local_only;
+  INK_MD5 md5;
+  url->MD5_get(&md5);
+  int host_len = 0;
+  const char *hostname = url->host_get(&host_len);
+
+  return lookup(cont, &md5, cluster_cache_local, local_only, frag_type, (char *) hostname, host_len);
+}
+
+TS_INLINE Action *
+CacheProcessor::open_read_buffer(Continuation *cont, MIOBuffer *buf,
+                                 URL *url, CacheHTTPHdr *request, CacheLookupHttpConfig *params, CacheFragType type)
+{
+  (void) buf;
+#ifdef CLUSTER_CACHE
+  if (cache_clustering_enabled > 0) {
+    return open_read_internal(CACHE_OPEN_READ_BUFFER_LONG, cont, buf, url,
+                              request, params, (CacheKey *) 0, 0, type, (char *) 0, 0);
+  }
+#endif
+  return caches[type]->open_read(cont, url, request, params, type);
+}
+
+TS_INLINE Action *
+CacheProcessor::open_write_buffer(Continuation * cont, MIOBuffer * buf, URL * url,
+                                  CacheHTTPHdr * request, CacheHTTPHdr * response, CacheFragType type)
+{
+  (void) cont;
+  (void) buf;
+  (void) url;
+  (void) request;
+  (void) response;
+  (void) type;
+  ink_assert(!"implemented");
+  return NULL;
+}
+
+#endif
+
+
+#ifdef CLUSTER_CACHE
+TS_INLINE Action *
+CacheProcessor::open_read_internal(int opcode,
+                                   Continuation *cont, MIOBuffer *buf,
+                                   CacheURL *url,
+                                   CacheHTTPHdr *request,
+                                   CacheLookupHttpConfig *params,
+                                   CacheKey *key,
+                                   time_t pin_in_cache, CacheFragType frag_type, char *hostname, int host_len)
+{
+  INK_MD5 url_md5;
+  if ((opcode == CACHE_OPEN_READ_LONG) || (opcode == CACHE_OPEN_READ_BUFFER_LONG)) {
+    Cache::generate_key(&url_md5, url);
+  } else {
+    url_md5 = *key;
+  }
+  ClusterMachine *m = cluster_machine_at_depth(cache_hash(url_md5));
+
+  if (m) {
+    return Cluster_read(m, opcode, cont, buf, url,
+                        request, params, key, pin_in_cache, frag_type, hostname, host_len);
+  } else {
+    if ((opcode == CACHE_OPEN_READ_LONG)
+        || (opcode == CACHE_OPEN_READ_BUFFER_LONG)) {
+      return caches[frag_type]->open_read(cont, &url_md5, request, params, frag_type, hostname, host_len);
+    } else {
+      return caches[frag_type]->open_read(cont, key, frag_type, hostname, host_len);
+    }
+  }
+}
+#endif
+
+#ifdef CLUSTER_CACHE
+TS_INLINE Action *
+CacheProcessor::link(Continuation *cont, CacheKey *from, CacheKey *to, bool cluster_cache_local,
+                     CacheFragType type, char *hostname, int host_len)
+{
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    // Use INK_MD5 in "from" to determine target machine
+    ClusterMachine *m = cluster_machine_at_depth(cache_hash(*from));
+    if (m) {
+      return Cluster_link(m, cont, from, to, type, hostname, host_len);
+    }
+  }
+  return caches[type]->link(cont, from, to, type, hostname, host_len);
+}
+
+TS_INLINE Action *
+CacheProcessor::deref(Continuation *cont, CacheKey *key, bool cluster_cache_local, CacheFragType type, char *hostname, int host_len)
+{
+  if (cache_clustering_enabled > 0 && !cluster_cache_local) {
+    ClusterMachine *m = cluster_machine_at_depth(cache_hash(*key));
+    if (m) {
+      return Cluster_deref(m, cont, key, type, hostname, host_len);
+    }
+  }
+  return caches[type]->deref(cont, key, type, hostname, host_len);
+}
+#endif
+
+TS_INLINE Action *
+CacheProcessor::scan(Continuation *cont, char *hostname, int host_len, int KB_per_second)
+{
+  return caches[CACHE_FRAG_TYPE_HTTP]->scan(cont, hostname, host_len, KB_per_second);
+}
+
+TS_INLINE int
+CacheProcessor::IsCacheEnabled()
+{
+  return CacheProcessor::initialized;
+}
+
+TS_INLINE bool
+CacheProcessor::IsCacheReady(CacheFragType type)
+{
+  if (IsCacheEnabled() != CACHE_INITIALIZED)
+    return 0;
+  return (bool)(cache_ready & (1 << type));
+}
+
+TS_INLINE Cache *
+local_cache()
+{
+  return theCache;
+}
+
+LINK_DEFINITION(CacheVC, opendir_link)
+
+#endif /* _P_CACHE_INTERNAL_H__ */
diff --git a/iocore/cache/P_CacheTest.h b/iocore/cache/P_CacheTest.h
new file mode 100644
index 00000000..8ef83ca7
--- /dev/null
+++ b/iocore/cache/P_CacheTest.h
@@ -0,0 +1,132 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_CACHE_TEST_H__
+#define __P_CACHE_TEST_H__
+
+#include "P_Cache.h"
+#include "RegressionSM.h"
+
+#define MAX_HOSTS_POSSIBLE 256
+#define PINNED_DOC_TABLE_SIZE 16
+#define PINNED_DOC_TABLES 246
+
+struct PinnedDocEntry
+{
+  CacheKey key;
+  ink_time_t time;
+  LINK(PinnedDocEntry, link);
+};
+
+struct PinnedDocTable: public Continuation
+{
+  Queue<PinnedDocEntry> bucket[PINNED_DOC_TABLE_SIZE];
+
+  void insert(CacheKey * key, ink_time_t time, int update);
+  int probe(CacheKey * key);
+  int remove(CacheKey * key);
+  int cleanup(int event, Event * e);
+
+  PinnedDocTable():Continuation(new_ProxyMutex()) {
+    memset(bucket, 0, sizeof(Queue<PinnedDocEntry>) * PINNED_DOC_TABLE_SIZE);
+  }
+};
+
+struct CacheTestHost {
+  char *name;
+  volatile unsigned int xlast_cachable_id;
+  double xprev_host_prob;
+  double xnext_host_prob;
+
+  CacheTestHost():name(NULL), xlast_cachable_id(0),
+                  xprev_host_prob(0), xnext_host_prob(0) {}
+};
+
+struct CacheTestHeader {
+  uint64_t serial;
+};
+
+struct CacheTestSM : public RegressionSM {
+  int start_memcpy_on_clone; // place all variables to be copied between these markers
+  Action *timeout;
+  Action *cache_action;
+  ink_hrtime start_time;
+  CacheVConnection *cache_vc;
+  VIO *cvio;
+  MIOBuffer *buffer;
+  IOBufferReader *buffer_reader;
+#ifdef HTTP_CACHE
+  CacheLookupHttpConfig params;
+  CacheHTTPInfo info;
+  char urlstr[1024];
+#endif
+  int64_t total_size;
+  int64_t nbytes;
+  CacheKey key;
+  int repeat_count;
+  int expect_event;
+  int expect_initial_event;
+  int initial_event;
+  uint64_t content_salt;
+  CacheTestHeader header;
+  int end_memcpy_on_clone; // place all variables to be copied between these markers
+
+  void fill_buffer();
+  int check_buffer();
+  int check_result(int event);
+  int complete(int event);
+  int event_handler(int event, void *edata);
+  void make_request() {
+    start_time = ink_get_hrtime();
+    make_request_internal();
+  }
+  virtual void make_request_internal() = 0;
+  virtual int open_read_callout();
+  virtual int open_write_callout();
+
+  void cancel_timeout() {
+    if (timeout) timeout->cancel();
+    timeout = 0;
+  }
+
+  // RegressionSM API
+  void run() { MUTEX_LOCK(lock, mutex, this_ethread()); timeout = eventProcessor.schedule_imm(this); }
+  virtual RegressionSM *clone() = 0;
+
+  CacheTestSM(RegressionTest *t);
+  CacheTestSM(const CacheTestSM &ao);
+  ~CacheTestSM();
+};
+
+// It is 2010 and C++ STILL doesn't have closures, a technology of the 1950s, unbelievable
+#define CACHE_SM(_t, _sm, _f)                \
+  struct CacheTestSM__##_sm : public CacheTestSM { \
+    void make_request_internal() _f \
+    CacheTestSM__##_sm(RegressionTest *t) : CacheTestSM(t) {} \
+    CacheTestSM__##_sm(const CacheTestSM__##_sm &xsm) : CacheTestSM(xsm) {} \
+    RegressionSM *clone() { return new CacheTestSM__##_sm(*this); } \
+} _sm(_t);
+
+void force_link_CacheTest();
+
+#endif /* __P_CACHE_TEST_H__ */
diff --git a/iocore/cache/P_CacheVol.h b/iocore/cache/P_CacheVol.h
new file mode 100644
index 00000000..ecf2d416
--- /dev/null
+++ b/iocore/cache/P_CacheVol.h
@@ -0,0 +1,942 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef _P_CACHE_VOL_H__
+#define _P_CACHE_VOL_H__
+
+#define CACHE_BLOCK_SHIFT               9
+#define CACHE_BLOCK_SIZE                (1<<CACHE_BLOCK_SHIFT) // 512, smallest sector size
+#define ROUND_TO_STORE_BLOCK(_x)        INK_ALIGN((_x), STORE_BLOCK_SIZE)
+#define ROUND_TO_CACHE_BLOCK(_x)        INK_ALIGN((_x), CACHE_BLOCK_SIZE)
+#define ROUND_TO_SECTOR(_p, _x)         INK_ALIGN((_x), _p->sector_size)
+#define ROUND_TO(_x, _y)                INK_ALIGN((_x), (_y))
+
+// Vol (volumes)
+#define VOL_MAGIC                      0xF1D0F00D
+#define START_BLOCKS                    16      // 8k, STORE_BLOCK_SIZE
+#define START_POS                       ((off_t)START_BLOCKS * CACHE_BLOCK_SIZE)
+#define AGG_SIZE                        (4 * 1024 * 1024) // 4MB
+#define AGG_HIGH_WATER                  (AGG_SIZE / 2) // 2MB
+#define EVACUATION_SIZE                 (2 * AGG_SIZE)  // 8MB
+#define MAX_VOL_SIZE                   ((off_t)512 * 1024 * 1024 * 1024 * 1024)
+#define STORE_BLOCKS_PER_CACHE_BLOCK    (STORE_BLOCK_SIZE / CACHE_BLOCK_SIZE)
+#define MAX_VOL_BLOCKS                 (MAX_VOL_SIZE / CACHE_BLOCK_SIZE)
+#define MAX_FRAG_SIZE                   (AGG_SIZE - sizeofDoc) // true max
+#define LEAVE_FREE                      DEFAULT_MAX_BUFFER_SIZE
+#define PIN_SCAN_EVERY                  16      // scan every 1/16 of disk
+#define VOL_HASH_TABLE_SIZE             32707
+#define VOL_HASH_EMPTY                 0xFFFF
+#define VOL_HASH_ALLOC_SIZE             (8 * 1024 * 1024)  // one chance per this unit
+#define LOOKASIDE_SIZE                  256
+#define EVACUATION_BUCKET_SIZE          (2 * EVACUATION_SIZE) // 16MB
+#define RECOVERY_SIZE                   EVACUATION_SIZE // 8MB
+#define AIO_NOT_IN_PROGRESS             0
+#define AIO_AGG_WRITE_IN_PROGRESS       -1
+#define AUTO_SIZE_RAM_CACHE             -1      // 1-1 with directory size
+#define DEFAULT_TARGET_FRAGMENT_SIZE    (1048576 - sizeofDoc) // 1MB
+
+
+#define dir_offset_evac_bucket(_o) \
+  (_o / (EVACUATION_BUCKET_SIZE / CACHE_BLOCK_SIZE))
+#define dir_evac_bucket(_e) dir_offset_evac_bucket(dir_offset(_e))
+#define offset_evac_bucket(_d, _o) \
+  dir_offset_evac_bucket((offset_to_vol_offset(_d, _o)
+
+// Documents
+
+#define DOC_MAGIC                       ((uint32_t)0x5F129B13)
+#define DOC_CORRUPT                     ((uint32_t)0xDEADBABE)
+#define DOC_NO_CHECKSUM                 ((uint32_t)0xA0B0C0D0)
+
+#define sizeofDoc (((uint32_t)(uintptr_t)&((Doc*)0)->checksum)+(uint32_t)sizeof(uint32_t))
+
+#if TS_USE_INTERIM_CACHE == 1
+struct InterimVolHeaderFooter
+{
+  unsigned int magic;
+  VersionNumber version;
+  time_t create_time;
+  off_t write_pos;
+  off_t last_write_pos;
+  off_t agg_pos;
+  uint32_t generation;            // token generation (vary), this cannot be 0
+  uint32_t phase;
+  uint32_t cycle;
+  uint32_t sync_serial;
+  uint32_t write_serial;
+  uint32_t dirty;
+  uint32_t sector_size;
+  int32_t unused;                // pad out to 8 byte boundary
+};
+#endif
+
+struct Cache;
+struct Vol;
+struct CacheDisk;
+struct VolInitInfo;
+struct DiskVol;
+struct CacheVol;
+
+struct VolHeaderFooter
+{
+  unsigned int magic;
+  VersionNumber version;
+  time_t create_time;
+  off_t write_pos;
+  off_t last_write_pos;
+  off_t agg_pos;
+  uint32_t generation;            // token generation (vary), this cannot be 0
+  uint32_t phase;
+  uint32_t cycle;
+  uint32_t sync_serial;
+  uint32_t write_serial;
+  uint32_t dirty;
+  uint32_t sector_size;
+  uint32_t unused;                // pad out to 8 byte boundary
+#if TS_USE_INTERIM_CACHE == 1
+  InterimVolHeaderFooter interim_header[8];
+#endif
+  uint16_t freelist[1];
+};
+
+// Key and Earliest key for each fragment that needs to be evacuated
+struct EvacuationKey
+{
+  SLink<EvacuationKey> link;
+  INK_MD5 key;
+  INK_MD5 earliest_key;
+};
+
+struct EvacuationBlock
+{
+  union
+  {
+    unsigned int init;
+    struct
+    {
+      unsigned int done:1;              // has been evacuated
+      unsigned int pinned:1;            // check pinning timeout
+      unsigned int evacuate_head:1;     // check pinning timeout
+      unsigned int unused:29;
+    } f;
+  };
+
+  int readers;
+  Dir dir;
+  Dir new_dir;
+  // we need to have a list of evacuationkeys because of collision.
+  EvacuationKey evac_frags;
+  CacheVC *earliest_evacuator;
+  LINK(EvacuationBlock, link);
+};
+
+#if TS_USE_INTERIM_CACHE == 1
+#define MIGRATE_BUCKETS                 1021
+extern int migrate_threshold;
+extern int good_interim_disks;
+
+
+union AccessEntry {
+  uintptr_t v[2];
+  struct {
+    uint32_t  next;
+    uint32_t  prev;
+    uint32_t  index;
+    uint16_t  tag;
+    int16_t  count;
+  } item;
+};
+
+struct AccessHistory {
+  AccessEntry *base;
+  int size; // 1M
+
+  uint32_t *hash;
+  int hash_size; // 2097143
+
+  AccessEntry *freelist;
+
+  void freeEntry(AccessEntry *entry) {
+    entry->v[0] = (uintptr_t) freelist;
+    entry->v[1] = 0xABCD1234U;
+    freelist = entry;
+  }
+
+  void init(int size, int hash_size) {
+    this->size = size;
+    this->hash_size = hash_size;
+    freelist = NULL;
+
+    base = (AccessEntry *) malloc(sizeof(AccessEntry) * size);
+    hash = (uint32_t *) malloc (sizeof(uint32_t) * hash_size);
+
+    memset(hash, 0, sizeof(uint32_t) * hash_size);
+
+    base[0].item.next = base[0].item.prev = 0;
+    base[0].v[1] = 0xABCD1234UL;
+    for (int i = size; --i > 0;)
+     freeEntry(&base[i]);
+
+    return;
+  }
+
+  void remove(AccessEntry *entry) {
+    if (entry == &(base[base[0].item.prev])) { // head
+      base[0].item.prev = entry->item.next;
+    } else {
+      base[entry->item.prev].item.next = entry->item.next;
+    }
+    if (entry == &(base[base[0].item.next])) { // tail
+      base[0].item.next = entry->item.prev;
+    } else {
+      base[entry->item.next].item.prev = entry->item.prev;
+    }
+    uint32_t hash_index = (uint32_t) (entry->item.index % hash_size);
+    hash[hash_index] = 0;
+  }
+
+  void enqueue(AccessEntry *entry) {
+    uint32_t hash_index = (uint32_t) (entry->item.index % hash_size);
+    hash[hash_index] = entry - base;
+
+    entry->item.prev = 0;
+    entry->item.next = base[0].item.prev;
+    base[base[0].item.prev].item.prev = entry - base;
+    base[0].item.prev = entry - base;
+    if (base[0].item.next == 0)
+      base[0].item.next = entry - base;
+  }
+
+  AccessEntry* dequeue() {
+    AccessEntry *tail = &base[base[0].item.next];
+    if (tail != base)
+      remove(tail);
+
+    return tail;
+  }
+
+  void set_in_progress(INK_MD5 *key) {
+    uint32_t key_index = key->word(3);
+    uint16_t tag = (uint16_t) key->word(1);
+    unsigned int hash_index = (uint32_t) (key_index % hash_size);
+
+    uint32_t index = hash[hash_index];
+    AccessEntry *entry = &base[index];
+    if (index != 0 && entry->item.tag == tag && entry->item.index == key_index) {
+      entry->item.count |= 0x8000;
+    }
+  }
+
+  void set_not_in_progress(INK_MD5 *key) {
+    uint32_t key_index = key->word(3);
+    uint16_t tag = (uint16_t) key->word(1);
+    unsigned int hash_index = (uint32_t) (key_index % hash_size);
+
+    uint32_t index = hash[hash_index];
+    AccessEntry *entry = &base[index];
+    if (index != 0 && entry->item.tag == tag && entry->item.index == key_index) {
+      entry->item.count &= 0x7FFF;
+    }
+  }
+
+  void put_key(INK_MD5 *key) {
+    uint32_t key_index = key->word(3);
+    uint16_t tag = (uint16_t) key->word(1);
+    unsigned int hash_index = (uint32_t) (key_index % hash_size);
+
+    uint32_t index = hash[hash_index];
+    AccessEntry *entry = &base[index];
+    if (index != 0 && entry->item.tag == tag && entry->item.index == key_index) { // seen before
+      remove(entry);
+      enqueue(entry);
+      ++entry->item.count;
+    } else {
+      if (index == 0) { // not seen before
+        if (!freelist) {
+          entry = dequeue();
+          if (entry == base) {
+            return;
+          }
+        } else {
+          entry = freelist;
+          freelist = (AccessEntry *) entry->v[0];
+        }
+      } else { // collation
+        remove(entry);
+      }
+      entry->item.index = key_index;
+      entry->item.tag = tag;
+      entry->item.count = 1;
+      enqueue(entry);
+    }
+  }
+
+  bool remove_key(INK_MD5 *key) {
+    unsigned int hash_index = (uint32_t) (key->word(3) % hash_size);
+    uint32_t index = hash[hash_index];
+    AccessEntry *entry = &base[index];
+    if (index != 0 && entry->item.tag == (uint16_t)key->word(1) && entry->item.index == key->word(3)) {
+      remove(entry);
+      freeEntry(entry);
+      return true;
+    }
+    return false;
+  }
+
+  bool is_hot(INK_MD5 *key) {
+    uint32_t key_index = key->word(3);
+    uint16_t tag = (uint16_t) key->word(1);
+    unsigned int hash_index = (uint32_t) (key_index % hash_size);
+
+    uint32_t index = hash[hash_index];
+    AccessEntry *entry = &base[index];
+
+    return (index != 0 && entry->item.tag == tag && entry->item.index == key_index
+        && entry->item.count >= migrate_threshold);
+  }
+};
+
+struct InterimCacheVol;
+
+struct MigrateToInterimCache
+{
+  MigrateToInterimCache() { }
+  Ptr<IOBufferData> buf;
+  uint32_t agg_len;
+  CacheKey  key;
+  Dir dir;
+  InterimCacheVol *interim_vol;
+  CacheVC *vc;
+  bool notMigrate;
+  bool rewrite;
+  bool copy;
+  LINK(MigrateToInterimCache, link);
+  LINK(MigrateToInterimCache, hash_link);
+};
+
+struct InterimCacheVol: public Continuation
+{
+  char *hash_id;
+  InterimVolHeaderFooter *header;
+
+  off_t recover_pos;
+  off_t prev_recover_pos;
+  uint32_t last_sync_serial;
+  uint32_t last_write_serial;
+  bool recover_wrapped;
+
+  off_t scan_pos;
+  off_t skip; // start of headers
+  off_t start; // start of data
+  off_t len;
+  off_t data_blocks;
+  char *agg_buffer;
+  int agg_todo_size;
+  int agg_buf_pos;
+  uint32_t sector_size;
+  int fd;
+  CacheDisk *disk;
+  Vol *vol; // backpointer to vol
+  AIOCallbackInternal io;
+  Queue<MigrateToInterimCache, MigrateToInterimCache::Link_link> agg;
+  int64_t transistor_range_threshold;
+  bool sync;
+  bool is_io_in_progress() {
+    return io.aiocb.aio_fildes != AIO_NOT_IN_PROGRESS;
+  }
+
+  int recover_data();
+  int handle_recover_from_data(int event, void *data);
+
+  void set_io_not_in_progress() {
+    io.aiocb.aio_fildes = AIO_NOT_IN_PROGRESS;
+  }
+
+  int aggWrite(int event, void *e);
+  int aggWriteDone(int event, void *e);
+  uint32_t round_to_approx_size (uint32_t l) {
+    uint32_t ll = round_to_approx_dir_size(l);
+    return INK_ALIGN(ll, disk->hw_sector_size);
+  }
+
+  void init(off_t s, off_t l, CacheDisk *interim, Vol *v, InterimVolHeaderFooter *hptr) {
+    const size_t hash_id_size = strlen(interim->path) + 32;
+    hash_id = (char *)ats_malloc(hash_id_size);
+    snprintf(hash_id, hash_id_size, "%s %" PRIu64 ":%" PRIu64 "", interim->path, s, l);
+
+    skip = start = s;
+    len = l;
+    disk = interim;
+    fd = disk->fd;
+    vol = v;
+    transistor_range_threshold = len / 5; // 20% storage size for transistor
+    sync = false;
+
+    header = hptr;
+
+    agg_todo_size = 0;
+    agg_buf_pos = 0;
+
+    agg_buffer = (char *) ats_memalign(sysconf(_SC_PAGESIZE), AGG_SIZE);
+    memset(agg_buffer, 0, AGG_SIZE);
+    this->mutex = ((Continuation *)vol)->mutex;
+  }
+};
+
+
+void dir_clean_bucket(Dir *b, int s, InterimCacheVol *d);
+void dir_clean_segment(int s, InterimCacheVol *d);
+void dir_clean_interimvol(InterimCacheVol *d);
+
+#endif
+
+struct Vol: public Continuation
+{
+  char *path;
+  char *hash_id;
+  INK_MD5 hash_id_md5;
+  int fd;
+
+  char *raw_dir;
+  Dir *dir;
+  VolHeaderFooter *header;
+  VolHeaderFooter *footer;
+  int segments;
+  off_t buckets;
+  off_t recover_pos;
+  off_t prev_recover_pos;
+  off_t scan_pos;
+  off_t skip;               // start of headers
+  off_t start;              // start of data
+  off_t len;
+  off_t data_blocks;
+  int hit_evacuate_window;
+  AIOCallbackInternal io;
+
+  Queue<CacheVC, Continuation::Link_link> agg;
+  Queue<CacheVC, Continuation::Link_link> stat_cache_vcs;
+  Queue<CacheVC, Continuation::Link_link> sync;
+  char *agg_buffer;
+  int agg_todo_size;
+  int agg_buf_pos;
+
+  Event *trigger;
+
+  OpenDir open_dir;
+  RamCache *ram_cache;
+  int evacuate_size;
+  DLL<EvacuationBlock> *evacuate;
+  DLL<EvacuationBlock> lookaside[LOOKASIDE_SIZE];
+  CacheVC *doc_evacuator;
+
+  VolInitInfo *init_info;
+
+  CacheDisk *disk;
+  Cache *cache;
+  CacheVol *cache_vol;
+  uint32_t last_sync_serial;
+  uint32_t last_write_serial;
+  uint32_t sector_size;
+  bool recover_wrapped;
+  bool dir_sync_waiting;
+  bool dir_sync_in_progress;
+  bool writing_end_marker;
+
+  CacheKey first_fragment_key;
+  int64_t first_fragment_offset;
+  Ptr<IOBufferData> first_fragment_data;
+
+#if TS_USE_INTERIM_CACHE == 1
+  int num_interim_vols;
+  InterimCacheVol interim_vols[8];
+  AccessHistory history;
+  uint32_t interim_index;
+  Queue<MigrateToInterimCache, MigrateToInterimCache::Link_hash_link> mig_hash[MIGRATE_BUCKETS];
+  volatile int interim_done;
+
+
+  bool migrate_probe(CacheKey *key, MigrateToInterimCache **result) {
+    uint32_t indx = key->word(3) % MIGRATE_BUCKETS;
+    MigrateToInterimCache *m = mig_hash[indx].head;
+    while (m != NULL && !(m->key == *key)) {
+      m = mig_hash[indx].next(m);
+    }
+    if (result != NULL)
+      *result = m;
+    return m != NULL;
+  }
+
+  void set_migrate_in_progress(MigrateToInterimCache *m) {
+    uint32_t indx = m->key.word(3) % MIGRATE_BUCKETS;
+    mig_hash[indx].enqueue(m);
+  }
+
+  void set_migrate_failed(MigrateToInterimCache *m) {
+    uint32_t indx = m->key.word(3) % MIGRATE_BUCKETS;
+    mig_hash[indx].remove(m);
+  }
+
+  void set_migrate_done(MigrateToInterimCache *m) {
+    uint32_t indx = m->key.word(3) % MIGRATE_BUCKETS;
+    mig_hash[indx].remove(m);
+    history.remove_key(&m->key);
+  }
+#endif
+
+  void cancel_trigger();
+
+  int recover_data();
+
+  int open_write(CacheVC *cont, int allow_if_writers, int max_writers);
+  int open_write_lock(CacheVC *cont, int allow_if_writers, int max_writers);
+  int close_write(CacheVC *cont);
+  int close_write_lock(CacheVC *cont);
+  int begin_read(CacheVC *cont);
+  int begin_read_lock(CacheVC *cont);
+  // unused read-write interlock code
+  // currently http handles a write-lock failure by retrying the read
+  OpenDirEntry *open_read(INK_MD5 *key);
+  OpenDirEntry *open_read_lock(INK_MD5 *key, EThread *t);
+  int close_read(CacheVC *cont);
+  int close_read_lock(CacheVC *cont);
+
+  int clear_dir();
+
+  int init(char *s, off_t blocks, off_t dir_skip, bool clear);
+
+  int handle_dir_clear(int event, void *data);
+  int handle_dir_read(int event, void *data);
+  int handle_recover_from_data(int event, void *data);
+  int handle_recover_write_dir(int event, void *data);
+  int handle_header_read(int event, void *data);
+
+#if TS_USE_INTERIM_CACHE == 1
+  int recover_interim_vol();
+#endif
+
+  int dir_init_done(int event, void *data);
+
+  int dir_check(bool fix);
+  int db_check(bool fix);
+
+  int is_io_in_progress()
+  {
+    return io.aiocb.aio_fildes != AIO_NOT_IN_PROGRESS;
+  }
+  int increment_generation()
+  {
+    // this is stored in the offset field of the directory (!=0)
+    ink_assert(mutex->thread_holding == this_ethread());
+    header->generation++;
+    if (!header->generation)
+      header->generation++;
+    return header->generation;
+  }
+  void set_io_not_in_progress()
+  {
+    io.aiocb.aio_fildes = AIO_NOT_IN_PROGRESS;
+  }
+  
+  int aggWriteDone(int event, Event *e);
+  int aggWrite(int event, void *e);
+  void agg_wrap();
+
+  int evacuateWrite(CacheVC *evacuator, int event, Event *e);
+  int evacuateDocReadDone(int event, Event *e);
+  int evacuateDoc(int event, Event *e);
+
+  int evac_range(off_t start, off_t end, int evac_phase);
+  void periodic_scan();
+  void scan_for_pinned_documents();
+  void evacuate_cleanup_blocks(int i);
+  void evacuate_cleanup();
+  EvacuationBlock *force_evacuate_head(Dir *dir, int pinned);
+  int within_hit_evacuate_window(Dir *dir);
+  uint32_t round_to_approx_size(uint32_t l);
+
+  Vol()
+    : Continuation(new_ProxyMutex()), path(NULL), fd(-1),
+      dir(0), buckets(0), recover_pos(0), prev_recover_pos(0), scan_pos(0), skip(0), start(0),
+      len(0), data_blocks(0), hit_evacuate_window(0), agg_todo_size(0), agg_buf_pos(0), trigger(0),
+      evacuate_size(0), disk(NULL), last_sync_serial(0), last_write_serial(0), recover_wrapped(false),
+      dir_sync_waiting(0), dir_sync_in_progress(0), writing_end_marker(0) {
+    open_dir.mutex = mutex;
+    agg_buffer = (char *)ats_memalign(ats_pagesize(), AGG_SIZE);
+    memset(agg_buffer, 0, AGG_SIZE);
+    SET_HANDLER(&Vol::aggWrite);
+  }
+
+  ~Vol() {
+    ats_memalign_free(agg_buffer);
+  }
+};
+
+struct AIO_Callback_handler: public Continuation
+{
+  int handle_disk_failure(int event, void *data);
+
+  AIO_Callback_handler():Continuation(new_ProxyMutex()) {
+    SET_HANDLER(&AIO_Callback_handler::handle_disk_failure);
+  }
+};
+
+struct CacheVol
+{
+  int vol_number;
+  int scheme;
+  off_t size;
+  int num_vols;
+  Vol **vols;
+  DiskVol **disk_vols;
+  LINK(CacheVol, link);
+  // per volume stats
+  RecRawStatBlock *vol_rsb;
+
+  CacheVol()
+    : vol_number(-1), scheme(0), size(0), num_vols(0), vols(NULL), disk_vols(0), vol_rsb(0)
+  { }
+};
+
+// Note : hdr() needs to be 8 byte aligned.
+// If you change this, change sizeofDoc above
+struct Doc
+{
+  uint32_t magic;         // DOC_MAGIC
+  uint32_t len;           // length of this segment (including hlen, flen & sizeof(Doc), unrounded)
+  uint64_t total_len;     // total length of document
+  INK_MD5 first_key;    // first key in document (http: vector)
+  INK_MD5 key;
+  uint32_t hlen;          // header length
+  uint32_t ftype:8;       // fragment type CACHE_FRAG_TYPE_XX
+  uint32_t _flen:24;       // fragment table length [amc] NOT USED
+  uint32_t sync_serial;
+  uint32_t write_serial;
+  uint32_t pinned;        // pinned until
+  uint32_t checksum;
+
+  uint32_t data_len();
+  uint32_t prefix_len();
+  int single_fragment();
+  int no_data_in_fragment();
+  char *hdr();
+  char *data();
+};
+
+// Global Data
+
+extern Vol **gvol;
+extern volatile int gnvol;
+extern ClassAllocator<OpenDirEntry> openDirEntryAllocator;
+extern ClassAllocator<EvacuationBlock> evacuationBlockAllocator;
+extern ClassAllocator<EvacuationKey> evacuationKeyAllocator;
+extern unsigned short *vol_hash_table;
+
+// inline Functions
+
+TS_INLINE int
+vol_headerlen(Vol *d) {
+  return ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter) + sizeof(uint16_t) * (d->segments-1));
+}
+
+TS_INLINE size_t
+vol_dirlen(Vol *d)
+{
+  return vol_headerlen(d) + 
+    ROUND_TO_STORE_BLOCK(((size_t)d->buckets) * DIR_DEPTH * d->segments * SIZEOF_DIR) +
+    ROUND_TO_STORE_BLOCK(sizeof(VolHeaderFooter));
+}
+
+TS_INLINE int
+vol_direntries(Vol *d)
+{
+  return d->buckets * DIR_DEPTH * d->segments;
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+#define vol_out_of_phase_valid(d, e)            \
+    (dir_offset(e) - 1 >= ((d->header->agg_pos - d->start) / CACHE_BLOCK_SIZE))
+
+#define vol_out_of_phase_agg_valid(d, e)        \
+    (dir_offset(e) - 1 >= ((d->header->agg_pos - d->start + AGG_SIZE) / CACHE_BLOCK_SIZE))
+
+#define vol_out_of_phase_write_valid(d, e)      \
+    (dir_offset(e) - 1 >= ((d->header->agg_pos - d->start + AGG_SIZE) / CACHE_BLOCK_SIZE))
+
+#define vol_in_phase_valid(d, e)                \
+    (dir_offset(e) - 1 < ((d->header->write_pos + d->agg_buf_pos - d->start) / CACHE_BLOCK_SIZE))
+
+#define vol_offset_to_offset(d, pos)            \
+    (d->start + pos * CACHE_BLOCK_SIZE - CACHE_BLOCK_SIZE)
+
+#define vol_dir_segment(d, s)                   \
+    (Dir *) (((char *) d->dir) + (s * d->buckets) * DIR_DEPTH * SIZEOF_DIR)
+
+#define offset_to_vol_offset(d, pos)            \
+    ((pos - d->start + CACHE_BLOCK_SIZE) / CACHE_BLOCK_SIZE)
+
+#define vol_offset(d, e)                        \
+    ((d)->start + (off_t) ((off_t)dir_offset(e) * CACHE_BLOCK_SIZE) - CACHE_BLOCK_SIZE)
+
+#define vol_in_phase_agg_buf_valid(d, e)        \
+    ((vol_offset(d, e) >= d->header->write_pos) && vol_offset(d, e) < (d->header->write_pos + d->agg_buf_pos))
+
+#define vol_transistor_range_valid(d, e)    \
+  ((d->header->agg_pos + d->transistor_range_threshold < d->start + d->len) ? \
+      (vol_out_of_phase_write_valid(d, e) && \
+      (dir_offset(e) <= ((d->header->agg_pos - d->start + d->transistor_range_threshold) / CACHE_BLOCK_SIZE))) : \
+      ((dir_offset(e) <= ((d->header->agg_pos - d->start + d->transistor_range_threshold - d->len) / CACHE_BLOCK_SIZE)) || \
+          (dir_offset(e) > ((d->header->agg_pos - d->start) / CACHE_BLOCK_SIZE))))
+
+
+#else
+TS_INLINE int
+vol_out_of_phase_valid(Vol *d, Dir *e)
+{
+  return (dir_offset(e) - 1 >= ((d->header->agg_pos - d->start) / CACHE_BLOCK_SIZE));
+}
+
+TS_INLINE int
+vol_out_of_phase_agg_valid(Vol *d, Dir *e)
+{
+  return (dir_offset(e) - 1 >= ((d->header->agg_pos - d->start + AGG_SIZE) / CACHE_BLOCK_SIZE));
+}
+
+TS_INLINE int
+vol_out_of_phase_write_valid(Vol *d, Dir *e)
+{
+  return (dir_offset(e) - 1 >= ((d->header->write_pos - d->start) / CACHE_BLOCK_SIZE));
+}
+
+TS_INLINE int
+vol_in_phase_valid(Vol *d, Dir *e)
+{
+  return (dir_offset(e) - 1 < ((d->header->write_pos + d->agg_buf_pos - d->start) / CACHE_BLOCK_SIZE));
+}
+
+TS_INLINE off_t
+vol_offset(Vol *d, Dir *e)
+{
+  return d->start + (off_t) dir_offset(e) * CACHE_BLOCK_SIZE - CACHE_BLOCK_SIZE;
+}
+
+TS_INLINE off_t
+offset_to_vol_offset(Vol *d, off_t pos)
+{
+  return ((pos - d->start + CACHE_BLOCK_SIZE) / CACHE_BLOCK_SIZE);
+}
+
+TS_INLINE off_t
+vol_offset_to_offset(Vol *d, off_t pos)
+{
+  return d->start + pos * CACHE_BLOCK_SIZE - CACHE_BLOCK_SIZE;
+}
+
+TS_INLINE Dir *
+vol_dir_segment(Vol *d, int s)
+{
+  return (Dir *) (((char *) d->dir) + (s * d->buckets) * DIR_DEPTH * SIZEOF_DIR);
+}
+
+TS_INLINE int
+vol_in_phase_agg_buf_valid(Vol *d, Dir *e)
+{
+  return (vol_offset(d, e) >= d->header->write_pos && vol_offset(d, e) < (d->header->write_pos + d->agg_buf_pos));
+}
+#endif
+// length of the partition not including the offset of location 0.
+TS_INLINE off_t
+vol_relative_length(Vol *v, off_t start_offset)
+{
+   return (v->len + v->skip) - start_offset;
+}
+
+TS_INLINE uint32_t
+Doc::prefix_len()
+{
+  return sizeofDoc + hlen + _flen;
+}
+
+TS_INLINE uint32_t
+Doc::data_len()
+{
+  return len - sizeofDoc - hlen - _flen;
+}
+
+TS_INLINE int
+Doc::single_fragment()
+{
+  return (data_len() == total_len);
+}
+
+TS_INLINE char *
+Doc::hdr()
+{
+  return ((char *) this) + sizeofDoc + _flen;
+}
+
+TS_INLINE char *
+Doc::data()
+{
+  return ((char *) this) + sizeofDoc + _flen + hlen;
+}
+
+int vol_dir_clear(Vol *d);
+int vol_init(Vol *d, char *s, off_t blocks, off_t skip, bool clear);
+
+// inline Functions
+
+TS_INLINE EvacuationBlock *
+evacuation_block_exists(Dir *dir, Vol *p)
+{
+  EvacuationBlock *b = p->evacuate[dir_evac_bucket(dir)].head;
+  for (; b; b = b->link.next)
+    if (dir_offset(&b->dir) == dir_offset(dir))
+      return b;
+  return 0;
+}
+
+TS_INLINE void
+Vol::cancel_trigger()
+{
+  if (trigger) {
+    trigger->cancel_action();
+    trigger = NULL;
+  }
+}
+
+TS_INLINE EvacuationBlock *
+new_EvacuationBlock(EThread *t)
+{
+  EvacuationBlock *b = THREAD_ALLOC(evacuationBlockAllocator, t);
+  b->init = 0;
+  b->readers = 0;
+  b->earliest_evacuator = 0;
+  b->evac_frags.link.next = 0;
+  return b;
+}
+
+TS_INLINE void
+free_EvacuationBlock(EvacuationBlock *b, EThread *t)
+{
+  EvacuationKey *e = b->evac_frags.link.next;
+  while (e) {
+    EvacuationKey *n = e->link.next;
+    evacuationKeyAllocator.free(e);
+    e = n;
+  }
+  THREAD_FREE(b, evacuationBlockAllocator, t);
+}
+
+TS_INLINE OpenDirEntry *
+Vol::open_read(INK_MD5 *key)
+{
+  return open_dir.open_read(key);
+}
+
+TS_INLINE int
+Vol::within_hit_evacuate_window(Dir *xdir)
+{
+  off_t oft = dir_offset(xdir) - 1;
+  off_t write_off = (header->write_pos + AGG_SIZE - start) / CACHE_BLOCK_SIZE;
+  off_t delta = oft - write_off;
+  if (delta >= 0)
+    return delta < hit_evacuate_window;
+  else
+    return -delta > (data_blocks - hit_evacuate_window) && -delta < data_blocks;
+}
+
+TS_INLINE uint32_t
+Vol::round_to_approx_size(uint32_t l) {
+  uint32_t ll = round_to_approx_dir_size(l);
+  return ROUND_TO_SECTOR(this, ll);
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+inline bool
+dir_valid(Vol *_d, Dir *_e) {
+  if (!dir_ininterim(_e))
+    return _d->header->phase == dir_phase(_e) ? vol_in_phase_valid(_d, _e) :
+        vol_out_of_phase_valid(_d, _e);
+  else {
+    int idx = dir_get_index(_e);
+    if (good_interim_disks <= 0 || idx >= _d->num_interim_vols) return false;
+    InterimCacheVol *sv = &(_d->interim_vols[idx]);
+    return !DISK_BAD(sv->disk) ? (sv->header->phase == dir_phase(_e) ? vol_in_phase_valid(sv, _e) :
+        vol_out_of_phase_valid(sv, _e)) : false;
+  }
+}
+
+inline bool
+dir_valid(InterimCacheVol *_d, Dir *_e) {
+  if (!dir_ininterim(_e))
+    return true;
+  InterimCacheVol *sv = &(_d->vol->interim_vols[dir_get_index(_e)]);
+  if (_d != sv)
+    return true;
+  return !DISK_BAD(sv->disk) ? (sv->header->phase == dir_phase(_e) ? vol_in_phase_valid(sv, _e) :
+      vol_out_of_phase_valid(sv, _e)) : false;
+
+}
+
+inline bool
+dir_agg_valid(Vol *_d, Dir *_e) {
+  if (!dir_ininterim(_e))
+    return _d->header->phase == dir_phase(_e) ? vol_in_phase_valid(_d, _e) :
+        vol_out_of_phase_agg_valid(_d, _e);
+  else {
+    int idx = dir_get_index(_e);
+    if(good_interim_disks <= 0 || idx >= _d->num_interim_vols) return false;
+    InterimCacheVol *sv = &(_d->interim_vols[idx]);
+    return sv->header->phase == dir_phase(_e) ? vol_in_phase_valid(sv, _e) :
+        vol_out_of_phase_agg_valid(sv, _e);
+  }
+}
+inline bool
+dir_write_valid(Vol *_d, Dir *_e) {
+  if (!dir_ininterim(_e))
+    return _d->header->phase == dir_phase(_e) ? vol_in_phase_valid(_d, _e) :
+        vol_out_of_phase_write_valid(_d, _e);
+  else {
+    InterimCacheVol *sv = &(_d->interim_vols[dir_get_index(_e)]);
+    return sv->header->phase == dir_phase(_e) ? vol_in_phase_valid(sv, _e) :
+        vol_out_of_phase_write_valid(sv, _e);
+  }
+}
+inline bool
+dir_agg_buf_valid(Vol *_d, Dir *_e) {
+  if (!dir_ininterim(_e))
+    return _d->header->phase == dir_phase(_e) && vol_in_phase_agg_buf_valid(_d, _e);
+  else {
+    InterimCacheVol *sv = &(_d->interim_vols[dir_get_index(_e)]);
+    return sv->header->phase == dir_phase(_e) && vol_in_phase_agg_buf_valid(sv, _e);
+  }
+}
+
+inline bool
+dir_agg_buf_valid(InterimCacheVol *_d, Dir *_e) {
+  return _d->header->phase == dir_phase(_e) && vol_in_phase_agg_buf_valid(_d, _e);
+}
+
+#endif // TS_USE_INTERIM_CACHE
+#endif /* _P_CACHE_VOL_H__ */
diff --git a/iocore/cache/P_RamCache.h b/iocore/cache/P_RamCache.h
new file mode 100644
index 00000000..9a0ae682
--- /dev/null
+++ b/iocore/cache/P_RamCache.h
@@ -0,0 +1,44 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_RAM_CACHE_H__
+#define _P_RAM_CACHE_H__
+
+#include "I_Cache.h"
+
+// Generic Ram Cache interface
+
+struct RamCache {
+  // returns 1 on found/stored, 0 on not found/stored, if provided auxkey1 and auxkey2 must match
+  virtual int get(INK_MD5 *key, Ptr<IOBufferData> *ret_data, uint32_t auxkey1 = 0, uint32_t auxkey2 = 0) = 0;
+  virtual int put(INK_MD5 *key, IOBufferData *data, uint32_t len, bool copy = false, uint32_t auxkey1 = 0, uint32_t auxkey2 = 0) = 0;
+  virtual int fixup(INK_MD5 *key, uint32_t old_auxkey1, uint32_t old_auxkey2, uint32_t new_auxkey1, uint32_t new_auxkey2) = 0;
+
+  virtual void init(int64_t max_bytes, Vol *vol) = 0;
+  virtual ~RamCache() {};
+};
+
+RamCache *new_RamCacheLRU();
+RamCache *new_RamCacheCLFUS();
+
+#endif /* _P_RAM_CACHE_H__ */
diff --git a/iocore/cache/RamCacheCLFUS.cc b/iocore/cache/RamCacheCLFUS.cc
new file mode 100644
index 00000000..80922b59
--- /dev/null
+++ b/iocore/cache/RamCacheCLFUS.cc
@@ -0,0 +1,681 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+// Clocked Least Frequently Used by Size (CLFUS) replacement policy
+// See https://cwiki.apache.org/confluence/display/TS/RamCache
+
+#include "P_Cache.h"
+#include "I_Tasks.h"
+#if TS_HAS_LIBZ
+#include <zlib.h>
+#endif
+#if TS_HAS_LZMA
+#include <lzma.h>
+#endif
+
+#define REQUIRED_COMPRESSION 0.9 // must get to this size or declared incompressible
+#define REQUIRED_SHRINK 0.8 // must get to this size or keep orignal buffer (with padding)
+#define HISTORY_HYSTERIA 10 // extra temporary history
+#define ENTRY_OVERHEAD 256 // per-entry overhead to consider when computing cache value/size
+#define LZMA_BASE_MEMLIMIT (64 * 1024 * 1024)
+//#define CHECK_ACOUNTING 1 // very expensive double checking of all sizes
+
+#define REQUEUE_HITS(_h) ((_h) ? 1 : 0)
+#define CACHE_VALUE_HITS_SIZE(_h, _s) ((float)((_h)+1) / ((_s) + ENTRY_OVERHEAD))
+#define CACHE_VALUE(_x) CACHE_VALUE_HITS_SIZE((_x)->hits, (_x)->size)
+
+struct RamCacheCLFUSEntry {
+  INK_MD5 key;
+  uint32_t auxkey1;
+  uint32_t auxkey2;
+  uint64_t hits;
+  uint32_t size; // memory used including paddding in buffer
+  uint32_t len;  // actual data length
+  uint32_t compressed_len;
+  union {
+    struct {
+      uint32_t compressed:3; // compression type
+      uint32_t incompressible:1;
+      uint32_t lru:1;
+      uint32_t copy:1; // copy-in-copy-out
+    } flag_bits;
+    uint32_t flags;
+  };
+  LINK(RamCacheCLFUSEntry, lru_link);
+  LINK(RamCacheCLFUSEntry, hash_link);
+  Ptr<IOBufferData> data;
+};
+
+struct RamCacheCLFUS : public RamCache {
+  int64_t max_bytes;
+  int64_t bytes;
+  int64_t objects;
+
+  // returns 1 on found/stored, 0 on not found/stored, if provided auxkey1 and auxkey2 must match
+  int get(INK_MD5 *key, Ptr<IOBufferData> *ret_data, uint32_t auxkey1 = 0, uint32_t auxkey2 = 0);
+  int put(INK_MD5 *key, IOBufferData *data, uint32_t len, bool copy = false, uint32_t auxkey1 = 0, uint32_t auxkey2 = 0);
+  int fixup(INK_MD5 *key, uint32_t old_auxkey1, uint32_t old_auxkey2, uint32_t new_auxkey1, uint32_t new_auxkey2);
+
+  void init(int64_t max_bytes, Vol *vol);
+
+  // private
+  Vol *vol; // for stats
+  int64_t history;
+  int ibuckets;
+  int nbuckets;
+  DList(RamCacheCLFUSEntry, hash_link) *bucket;
+  Que(RamCacheCLFUSEntry, lru_link) lru[2];
+  uint16_t *seen;
+  int ncompressed;
+  RamCacheCLFUSEntry *compressed; // first uncompressed lru[0] entry
+  void compress_entries(EThread *thread, int do_at_most = INT_MAX);
+  void resize_hashtable();
+  void victimize(RamCacheCLFUSEntry *e);
+  void move_compressed(RamCacheCLFUSEntry *e);
+  RamCacheCLFUSEntry *destroy(RamCacheCLFUSEntry *e);
+  void requeue_victims(RamCacheCLFUS *c, Que(RamCacheCLFUSEntry, lru_link) &victims);
+  void tick(); // move CLOCK on history
+  RamCacheCLFUS(): max_bytes(0), bytes(0), objects(0), vol(0), history(0), ibuckets(0), nbuckets(0), bucket(0),
+              seen(0), ncompressed(0), compressed(0) { }
+};
+
+class RamCacheCLFUSCompressor : public Continuation {
+public:
+  RamCacheCLFUS *rc;
+  int mainEvent(int event, Event *e);
+
+  RamCacheCLFUSCompressor(RamCacheCLFUS *arc)
+    : rc(arc)
+  { 
+    SET_HANDLER(&RamCacheCLFUSCompressor::mainEvent); 
+  }
+};
+
+int
+RamCacheCLFUSCompressor::mainEvent(int /* event ATS_UNUSED */, Event *e)
+{
+  switch (cache_config_ram_cache_compress) {
+    default:
+      Warning("unknown RAM cache compression type: %d", cache_config_ram_cache_compress);
+    case CACHE_COMPRESSION_NONE: 
+    case CACHE_COMPRESSION_FASTLZ:
+      break;
+    case CACHE_COMPRESSION_LIBZ:
+#if ! TS_HAS_LIBZ
+      Warning("libz not available for RAM cache compression");
+#endif
+      break;
+    case CACHE_COMPRESSION_LIBLZMA:
+#if ! TS_HAS_LZMA
+      Warning("lzma not available for RAM cache compression");
+#endif
+      break;
+  }
+  if (cache_config_ram_cache_compress_percent)
+    rc->compress_entries(e->ethread);
+  return EVENT_CONT;
+}
+
+ClassAllocator<RamCacheCLFUSEntry> ramCacheCLFUSEntryAllocator("RamCacheCLFUSEntry");
+
+static const int bucket_sizes[] = {
+  127, 251, 509, 1021, 2039, 4093, 8191, 16381, 32749, 65521, 131071, 262139,
+  524287, 1048573, 2097143, 4194301, 8388593, 16777213, 33554393, 67108859,
+  134217689, 268435399, 536870909, 1073741789, 2147483647
+};
+
+void
+RamCacheCLFUS::resize_hashtable()
+{
+  int anbuckets = bucket_sizes[ibuckets];
+  DDebug("ram_cache", "resize hashtable %d", anbuckets);
+  int64_t s = anbuckets * sizeof(DList(RamCacheCLFUSEntry, hash_link));
+  DList(RamCacheCLFUSEntry, hash_link) *new_bucket = (DList(RamCacheCLFUSEntry, hash_link) *)ats_malloc(s);
+  memset(new_bucket, 0, s);
+  if (bucket) {
+    for (int64_t i = 0; i < nbuckets; i++) {
+      RamCacheCLFUSEntry *e = 0;
+      while ((e = bucket[i].pop()))
+        new_bucket[e->key.word(3) % anbuckets].push(e);
+    }
+    ats_free(bucket);
+  }
+  bucket = new_bucket;
+  nbuckets = anbuckets;
+  ats_free(seen);
+  if (cache_config_ram_cache_use_seen_filter) {
+    int size = bucket_sizes[ibuckets] * sizeof(uint16_t);
+    seen = (uint16_t*)ats_malloc(size);
+    memset(seen, 0, size);
+  }
+}
+
+void
+RamCacheCLFUS::init(int64_t abytes, Vol *avol)
+{
+  ink_assert(avol != 0);
+  vol = avol;
+  max_bytes = abytes;
+  DDebug("ram_cache", "initializing ram_cache %" PRId64 " bytes", abytes);
+  if (!max_bytes)
+    return;
+  resize_hashtable();
+  eventProcessor.schedule_every(new RamCacheCLFUSCompressor(this), HRTIME_SECOND, ET_TASK);
+}
+
+#ifdef CHECK_ACOUNTING
+static void check_accounting(RamCacheCLFUS *c)
+{
+  int64_t x = 0, xsize = 0, h = 0;
+  RamCacheCLFUSEntry *y = c->lru[0].head;
+  while (y) { x++; xsize += y->size + ENTRY_OVERHEAD; y = y->lru_link.next; }
+  y = c->lru[1].head;
+  while (y) { h++; y = y->lru_link.next; }
+  ink_assert(x == c->objects);
+  ink_assert(xsize == c->bytes);
+  ink_assert(h == c->history);
+}
+#else
+#define check_accounting(_c)
+#endif
+
+int
+RamCacheCLFUS::get(INK_MD5 *key, Ptr<IOBufferData> *ret_data, uint32_t auxkey1, uint32_t auxkey2)
+{
+  if (!max_bytes)
+    return 0;
+  int64_t i = key->word(3) % nbuckets;
+  RamCacheCLFUSEntry *e = bucket[i].head;
+  char *b = 0;
+  while (e) {
+    if (e->key == *key && e->auxkey1 == auxkey1 && e->auxkey2 == auxkey2) {
+      move_compressed(e);
+      lru[e->flag_bits.lru].remove(e);
+      lru[e->flag_bits.lru].enqueue(e);
+      if (!e->flag_bits.lru) { // in memory
+        e->hits++;
+        if (e->flag_bits.compressed) {
+          b = (char*)ats_malloc(e->len);
+          switch (e->flag_bits.compressed) {
+            default: goto Lfailed;
+            case CACHE_COMPRESSION_FASTLZ: {
+              int l = (int)e->len;
+              if ((l != (int)fastlz_decompress(e->data->data(), e->compressed_len, b, l)))
+                goto Lfailed;
+              break;
+            }
+#if TS_HAS_LIBZ
+            case CACHE_COMPRESSION_LIBZ: {
+              uLongf l = e->len;
+              if (Z_OK != uncompress((Bytef*)b, &l, (Bytef*)e->data->data(), e->compressed_len))
+                goto Lfailed;
+              break;
+            }
+#endif
+#if TS_HAS_LZMA
+            case CACHE_COMPRESSION_LIBLZMA: {
+              size_t l = (size_t)e->len, ipos = 0, opos = 0;
+              uint64_t memlimit = e->len * 2 + LZMA_BASE_MEMLIMIT;
+              if (LZMA_OK != lzma_stream_buffer_decode(
+                    &memlimit, 0, NULL, (uint8_t*)e->data->data(), &ipos, e->compressed_len, (uint8_t*)b, &opos, l))
+                goto Lfailed;
+              break;
+            }
+#endif
+          }
+          IOBufferData *data = new_xmalloc_IOBufferData(b, e->len);
+          data->_mem_type = DEFAULT_ALLOC;
+          if (!e->flag_bits.copy) { // don't bother if we have to copy anyway
+            int64_t delta = ((int64_t)e->compressed_len) - (int64_t)e->size;
+            bytes += delta;
+            CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, delta);
+            e->size = e->compressed_len;
+            check_accounting(this);
+            e->flag_bits.compressed = 0;
+            e->data = data;
+          }
+          (*ret_data) = data;
+        } else {
+          IOBufferData *data = e->data;
+          if (e->flag_bits.copy) {
+            data = new_IOBufferData(iobuffer_size_to_index(e->len, MAX_BUFFER_SIZE_INDEX), MEMALIGNED);
+            memcpy(data->data(), e->data->data(), e->len);
+          }
+          (*ret_data) = data;
+        }
+        CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_hits_stat, 1);
+        DDebug("ram_cache", "get %X %d %d size %d HIT", key->word(3), auxkey1, auxkey2, e->size);
+        return 1;
+      } else {
+        CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_misses_stat, 1);
+        DDebug("ram_cache", "get %X %d %d HISTORY", key->word(3), auxkey1, auxkey2);
+        return 0;
+      }
+    }
+    assert(e != e->hash_link.next);
+    e = e->hash_link.next;
+  }
+  DDebug("ram_cache", "get %X %d %d MISS", key->word(3), auxkey1, auxkey2);
+Lerror:
+  CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_misses_stat, 1);
+  return 0;
+Lfailed:
+  ats_free(b);
+  e = destroy(e);
+  DDebug("ram_cache", "get %X %d %d Z_ERR", key->word(3), auxkey1, auxkey2);
+  goto Lerror;
+}
+
+void RamCacheCLFUS::tick() {
+  RamCacheCLFUSEntry *e = lru[1].dequeue();
+  if (!e)
+    return;
+  e->hits <<= 1;
+  if (e->hits) {
+    e->hits = REQUEUE_HITS(e->hits);
+    lru[1].enqueue(e);
+  } else
+    goto Lfree;
+  if (history <= objects + HISTORY_HYSTERIA)
+    return;
+  e = lru[1].dequeue();
+Lfree:
+  e->flag_bits.lru = 0;
+  history--;
+  uint32_t b = e->key.word(3) % nbuckets;
+  bucket[b].remove(e);
+  DDebug("ram_cache", "put %X %d %d size %d FREED", e->key.word(3), e->auxkey1, e->auxkey2, e->size);
+  THREAD_FREE(e, ramCacheCLFUSEntryAllocator, this_thread());
+}
+
+void
+RamCacheCLFUS::victimize(RamCacheCLFUSEntry *e)
+{
+  objects--;
+  DDebug("ram_cache", "put %X %d %d size %d VICTIMIZED", e->key.word(3), e->auxkey1, e->auxkey2, e->size);
+  e->data = NULL;
+  e->flag_bits.lru = 1;
+  lru[1].enqueue(e);
+  history++;
+}
+
+void
+RamCacheCLFUS::move_compressed(RamCacheCLFUSEntry *e)
+{
+  if (e == compressed) {
+    if (compressed->lru_link.next)
+      compressed = compressed->lru_link.next;
+    else {
+      ncompressed--;
+      compressed = compressed->lru_link.prev;
+    }
+  }
+}
+
+RamCacheCLFUSEntry *
+RamCacheCLFUS::destroy(RamCacheCLFUSEntry *e)
+{
+  RamCacheCLFUSEntry *ret = e->hash_link.next;
+  move_compressed(e);
+  lru[e->flag_bits.lru].remove(e);
+  if (!e->flag_bits.lru) {
+    objects--;
+    bytes -= e->size + ENTRY_OVERHEAD;
+    CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, -(int64_t)e->size);
+    e->data = NULL;
+  } else
+    history--;
+  uint32_t b = e->key.word(3) % nbuckets;
+  bucket[b].remove(e);
+  DDebug("ram_cache", "put %X %d %d DESTROYED", e->key.word(3), e->auxkey1, e->auxkey2);
+  THREAD_FREE(e, ramCacheCLFUSEntryAllocator, this_thread());
+  return ret;
+}
+
+void
+RamCacheCLFUS::compress_entries(EThread *thread, int do_at_most)
+{
+  if (!cache_config_ram_cache_compress)
+    return;
+  ink_assert(vol != 0);
+  MUTEX_TAKE_LOCK(vol->mutex, thread);
+  if (!compressed) {
+    compressed = lru[0].head;
+    ncompressed = 0;
+  }
+  float target = (cache_config_ram_cache_compress_percent / 100.0) * objects;
+  int n = 0;
+  char *b = 0, *bb = 0;
+  while (compressed && target > ncompressed) {
+    RamCacheCLFUSEntry *e = compressed;
+    if (e->flag_bits.incompressible || e->flag_bits.compressed)
+      goto Lcontinue;
+    n++;
+    if (do_at_most < n)
+      break;
+    {
+      e->compressed_len = e->size;
+      uint32_t l = 0;
+      int ctype = cache_config_ram_cache_compress;
+      switch (ctype) {
+        default: goto Lcontinue;
+        case CACHE_COMPRESSION_FASTLZ: l = (uint32_t)((double)e->len * 1.05 + 66); break;
+#if TS_HAS_LIBZ
+        case CACHE_COMPRESSION_LIBZ: l = (uint32_t)compressBound(e->len); break;
+#endif
+#if TS_HAS_LZMA
+        case CACHE_COMPRESSION_LIBLZMA: l = e->len; break;
+#endif
+      }
+      // store transient data for lock release
+      Ptr<IOBufferData> edata = e->data;
+      uint32_t elen = e->len;
+      INK_MD5 key = e->key;
+      MUTEX_UNTAKE_LOCK(vol->mutex, thread);
+      b = (char*)ats_malloc(l);
+      bool failed = false;
+      switch (ctype) {
+        default: goto Lfailed;
+        case CACHE_COMPRESSION_FASTLZ:
+          if (e->len < 16) goto Lfailed;
+          if ((l = fastlz_compress(edata->data(), elen, b)) <= 0)
+            failed = true;
+          break;
+#if TS_HAS_LIBZ
+        case CACHE_COMPRESSION_LIBZ: {
+          uLongf ll = l;
+          if ((Z_OK != compress((Bytef*)b, &ll, (Bytef*)edata->data(), elen)))
+            failed = true;
+          l = (int)ll;
+          break;
+        }
+#endif
+#if TS_HAS_LZMA
+        case CACHE_COMPRESSION_LIBLZMA: {
+          size_t pos = 0, ll = l;
+          if (LZMA_OK != lzma_easy_buffer_encode(LZMA_PRESET_DEFAULT, LZMA_CHECK_NONE, NULL,
+                                                 (uint8_t*)edata->data(), elen, (uint8_t*)b, &pos, ll))
+            failed = true;
+          l = (int)pos;
+          break;
+        }
+#endif
+      }
+      MUTEX_TAKE_LOCK(vol->mutex, thread);
+      // see if the entry is till around
+      {
+        uint32_t i = key.word(3) % nbuckets;
+        RamCacheCLFUSEntry *ee = bucket[i].head;
+        while (ee) {
+          if (ee->key == key && ee->data == edata) break;
+          ee = ee->hash_link.next;
+        }
+        if (!ee || ee != e) {
+          e = compressed;
+          goto Lcontinue;
+        }
+        if (failed)
+          goto Lfailed;
+      }
+      if (l > REQUIRED_COMPRESSION * e->len)
+        e->flag_bits.incompressible = true;
+      if (l > REQUIRED_SHRINK * e->size)
+        goto Lfailed;
+      if (l < e->len) {
+        e->flag_bits.compressed = cache_config_ram_cache_compress;
+        bb = (char*)ats_malloc(l);
+        memcpy(bb, b, l);
+        ats_free(b);
+        e->compressed_len = l;
+        int64_t delta = ((int64_t)l) - (int64_t)e->size;
+        bytes += delta;
+        CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, delta);
+        e->size = l;
+      } else {
+        ats_free(b);
+        e->flag_bits.compressed = 0;
+        bb = (char*)ats_malloc(e->len);
+        memcpy(bb, e->data->data(), e->len);
+        int64_t delta = ((int64_t)e->len) - (int64_t)e->size;
+        bytes += delta;
+        CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, delta);
+        e->size = e->len;
+        l = e->len;
+      }
+      e->data = new_xmalloc_IOBufferData(bb, l);
+      e->data->_mem_type = DEFAULT_ALLOC;
+      check_accounting(this);
+    }
+    goto Lcontinue;
+  Lfailed:
+    ats_free(b);
+    e->flag_bits.incompressible = 1;
+  Lcontinue:;
+    DDebug("ram_cache", "compress %X %d %d %d %d %d %d %d",
+           e->key.word(3), e->auxkey1, e->auxkey2,
+           e->flag_bits.incompressible, e->flag_bits.compressed,
+           e->len, e->compressed_len, ncompressed);
+    if (!e->lru_link.next)
+      break;
+    compressed = e->lru_link.next;
+    ncompressed++;
+  }
+  MUTEX_UNTAKE_LOCK(vol->mutex, thread);
+  return;
+}
+
+void
+RamCacheCLFUS::requeue_victims(RamCacheCLFUS *c, Que(RamCacheCLFUSEntry, lru_link) &victims)
+{
+  RamCacheCLFUSEntry *victim = 0;
+  while ((victim = victims.dequeue())) {
+    c->bytes += victim->size + ENTRY_OVERHEAD;
+    CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, victim->size);
+    victim->hits = REQUEUE_HITS(victim->hits);
+    c->lru[0].enqueue(victim);
+  }
+}
+
+int
+RamCacheCLFUS::put(INK_MD5 *key, IOBufferData *data, uint32_t len, bool copy, uint32_t auxkey1, uint32_t auxkey2)
+{
+  if (!max_bytes)
+    return 0;
+  uint32_t i = key->word(3) % nbuckets;
+  RamCacheCLFUSEntry *e = bucket[i].head;
+  uint32_t size = copy ? len : data->block_size();
+  while (e) {
+    if (e->key == *key) {
+      if (e->auxkey1 == auxkey1 && e->auxkey2 == auxkey2)
+        break;
+      else {
+        e = destroy(e); // discard when aux keys conflict
+        continue;
+      }
+    }
+    e = e->hash_link.next;
+  }
+  if (e) {
+    e->hits++;
+    if (!e->flag_bits.lru) { // already in cache
+      move_compressed(e);
+      lru[e->flag_bits.lru].remove(e);
+      lru[e->flag_bits.lru].enqueue(e);
+      int64_t delta = ((int64_t)size) - (int64_t)e->size;
+      bytes += delta;
+      CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, delta);
+      if (!copy) {
+        e->size = size;
+        e->data = data;
+      } else {
+        char *b = (char*)ats_malloc(len);
+        memcpy(b, data->data(), len);
+        e->data = new_xmalloc_IOBufferData(b, len);
+        e->data->_mem_type = DEFAULT_ALLOC;
+        e->size = size;
+      }
+      check_accounting(this);
+      e->flag_bits.copy = copy;
+      e->flag_bits.compressed = 0;
+      DDebug("ram_cache", "put %X %d %d size %d HIT", key->word(3), auxkey1, auxkey2, e->size);
+      return 1;
+    } else
+      lru[1].remove(e);
+  }
+  Que(RamCacheCLFUSEntry, lru_link) victims;
+  RamCacheCLFUSEntry *victim = 0;
+  if (!lru[1].head) // initial fill
+    if (bytes + size <= max_bytes)
+      goto Linsert;
+  if (!e && cache_config_ram_cache_use_seen_filter) {
+    uint32_t s = key->word(3) % bucket_sizes[ibuckets];
+    uint16_t k = key->word(3) >> 16;
+    uint16_t kk = seen[s];
+    seen[s] = k;
+    if (history >= objects && kk != k) {
+      DDebug("ram_cache", "put %X %d %d size %d UNSEEN", key->word(3), auxkey1, auxkey2, size);
+      return 0;
+    }
+  }
+  while (1) {
+    victim = lru[0].dequeue();
+    if (!victim) {
+      if (bytes + size <= max_bytes)
+        goto Linsert;
+      if (e)
+        lru[1].enqueue(e);
+      requeue_victims(this, victims);
+      DDebug("ram_cache", "put %X %d %d NO VICTIM", key->word(3), auxkey1, auxkey2);
+      return 0;
+    }
+    bytes -= victim->size + ENTRY_OVERHEAD;
+    CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, -(int64_t)victim->size);
+    victims.enqueue(victim);
+    if (victim == compressed)
+      compressed = 0;
+    else
+      ncompressed--;
+    victim->hits <<= 1;
+    tick();
+    if (!e)
+      goto Lhistory;
+    else { // e from history
+      DDebug("ram_cache_compare", "put %f %f", CACHE_VALUE(victim), CACHE_VALUE(e));
+      if (bytes + victim->size + size > max_bytes && CACHE_VALUE(victim) > CACHE_VALUE(e)) {
+        requeue_victims(this, victims);
+        lru[1].enqueue(e);
+        DDebug("ram_cache", "put %X %d %d size %d INC %" PRId64" HISTORY",
+               key->word(3), auxkey1, auxkey2, e->size, e->hits);
+        return 0;
+      }
+    }
+    if (bytes + size <= max_bytes)
+      goto Linsert;
+  }
+Linsert:
+  while ((victim = victims.dequeue())) {
+    if (bytes + size + victim->size <= max_bytes) {
+      bytes += victim->size + ENTRY_OVERHEAD;
+      CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, victim->size);
+      victim->hits = REQUEUE_HITS(victim->hits);
+      lru[0].enqueue(victim);
+    } else
+      victimize(victim);
+  }
+  if (e) {
+    history--; // move from history
+  } else {
+    e = THREAD_ALLOC(ramCacheCLFUSEntryAllocator, this_ethread());
+    e->key = *key;
+    e->auxkey1 = auxkey1;
+    e->auxkey2 = auxkey2;
+    e->hits = 1;
+    bucket[i].push(e);
+    if (objects > nbuckets) {
+      ++ibuckets;
+      resize_hashtable();
+    }
+  }
+  check_accounting(this);
+  e->flags = 0;
+  if (!copy)
+    e->data = data;
+  else {
+    char *b = (char*)ats_malloc(len);
+    memcpy(b, data->data(), len);
+    e->data = new_xmalloc_IOBufferData(b, len);
+    e->data->_mem_type = DEFAULT_ALLOC;
+  }
+  e->flag_bits.copy = copy;
+  bytes += size + ENTRY_OVERHEAD;
+  CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, size);
+  e->size = size;
+  objects++;
+  lru[0].enqueue(e);
+  e->len = len;
+  check_accounting(this);
+  DDebug("ram_cache", "put %X %d %d size %d INSERTED", key->word(3), auxkey1, auxkey2, e->size);
+  return 1;
+Lhistory:
+  requeue_victims(this, victims);
+  check_accounting(this);
+  e = THREAD_ALLOC(ramCacheCLFUSEntryAllocator, this_ethread());
+  e->key = *key;
+  e->auxkey1 = auxkey1;
+  e->auxkey2 = auxkey2;
+  e->hits = 1;
+  e->size = data->block_size();
+  e->flags = 0;
+  bucket[i].push(e);
+  e->flag_bits.lru = 1;
+  lru[1].enqueue(e);
+  history++;
+  DDebug("ram_cache", "put %X %d %d HISTORY", key->word(3), auxkey1, auxkey2);
+  return 0;
+}
+
+int
+RamCacheCLFUS::fixup(INK_MD5 * key, uint32_t old_auxkey1, uint32_t old_auxkey2, uint32_t new_auxkey1,
+                     uint32_t new_auxkey2)
+{
+  if (!max_bytes)
+    return 0;
+  uint32_t i = key->word(3) % nbuckets;
+  RamCacheCLFUSEntry *e = bucket[i].head;
+  while (e) {
+    if (e->key == *key && e->auxkey1 == old_auxkey1 && e->auxkey2 == old_auxkey2) {
+      e->auxkey1 = new_auxkey1;
+      e->auxkey2 = new_auxkey2;
+      return 1;
+    }
+    e = e->hash_link.next;
+  }
+  return 0;
+}
+
+RamCache *
+new_RamCacheCLFUS()
+{
+  RamCacheCLFUS *r = new RamCacheCLFUS;
+  return r;
+}
diff --git a/iocore/cache/RamCacheLRU.cc b/iocore/cache/RamCacheLRU.cc
new file mode 100644
index 00000000..ddf76201
--- /dev/null
+++ b/iocore/cache/RamCacheLRU.cc
@@ -0,0 +1,210 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Cache.h"
+
+struct RamCacheLRUEntry {
+  INK_MD5 key;
+  uint32_t auxkey1;
+  uint32_t auxkey2;
+  LINK(RamCacheLRUEntry, lru_link);
+  LINK(RamCacheLRUEntry, hash_link);
+  Ptr<IOBufferData> data;
+};
+
+struct RamCacheLRU: public RamCache {
+  int64_t max_bytes;
+  int64_t bytes;
+  int64_t objects;
+
+  // returns 1 on found/stored, 0 on not found/stored, if provided auxkey1 and auxkey2 must match
+  int get(INK_MD5 *key, Ptr<IOBufferData> *ret_data, uint32_t auxkey1 = 0, uint32_t auxkey2 = 0);
+  int put(INK_MD5 *key, IOBufferData *data, uint32_t len, bool copy = false, uint32_t auxkey1 = 0, uint32_t auxkey2 = 0);
+  int fixup(INK_MD5 *key, uint32_t old_auxkey1, uint32_t old_auxkey2, uint32_t new_auxkey1, uint32_t new_auxkey2);
+
+  void init(int64_t max_bytes, Vol *vol);
+
+  // private
+  uint16_t *seen;
+  Que(RamCacheLRUEntry, lru_link) lru;
+  DList(RamCacheLRUEntry, hash_link) *bucket;
+  int nbuckets;
+  int ibuckets;
+  Vol *vol;
+
+  void resize_hashtable();
+  RamCacheLRUEntry *remove(RamCacheLRUEntry *e);
+
+  RamCacheLRU():bytes(0), objects(0), seen(0), bucket(0), nbuckets(0), ibuckets(0), vol(NULL) {}
+};
+
+ClassAllocator<RamCacheLRUEntry> ramCacheLRUEntryAllocator("RamCacheLRUEntry");
+
+static const int bucket_sizes[] = {
+  127, 251, 509, 1021, 2039, 4093, 8191, 16381, 32749, 65521, 131071, 262139,
+  524287, 1048573, 2097143, 4194301, 8388593, 16777213, 33554393, 67108859,
+  134217689, 268435399, 536870909
+};
+
+void RamCacheLRU::resize_hashtable() {
+  int anbuckets = bucket_sizes[ibuckets];
+  DDebug("ram_cache", "resize hashtable %d", anbuckets);
+  int64_t s = anbuckets * sizeof(DList(RamCacheLRUEntry, hash_link));
+  DList(RamCacheLRUEntry, hash_link) *new_bucket = (DList(RamCacheLRUEntry, hash_link) *)ats_malloc(s);
+  memset(new_bucket, 0, s);
+  if (bucket) {
+    for (int64_t i = 0; i < nbuckets; i++) {
+      RamCacheLRUEntry *e = 0;
+      while ((e = bucket[i].pop()))
+        new_bucket[e->key.word(3) % anbuckets].push(e);
+    }
+    ats_free(bucket);
+  }
+  bucket = new_bucket;
+  nbuckets = anbuckets;
+  ats_free(seen);
+  int size = bucket_sizes[ibuckets] * sizeof(uint16_t);
+  if (cache_config_ram_cache_use_seen_filter) {
+    seen = (uint16_t*)ats_malloc(size);
+    memset(seen, 0, size);
+  }
+}
+
+void
+RamCacheLRU::init(int64_t abytes, Vol *avol) {
+  vol = avol;
+  max_bytes = abytes;
+  DDebug("ram_cache", "initializing ram_cache %" PRId64 " bytes", abytes);
+  if (!max_bytes)
+    return;
+  resize_hashtable();
+}
+
+int
+RamCacheLRU::get(INK_MD5 * key, Ptr<IOBufferData> *ret_data, uint32_t auxkey1, uint32_t auxkey2) {
+  if (!max_bytes)
+    return 0;
+  uint32_t i = key->word(3) % nbuckets;
+  RamCacheLRUEntry *e = bucket[i].head;
+  while (e) {
+    if (e->key == *key && e->auxkey1 == auxkey1 && e->auxkey2 == auxkey2) {
+      lru.remove(e);
+      lru.enqueue(e);
+      (*ret_data) = e->data;
+      DDebug("ram_cache", "get %X %d %d HIT", key->word(3), auxkey1, auxkey2);
+      CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_hits_stat, 1);
+      return 1;
+    }
+    e = e->hash_link.next;
+  }
+  DDebug("ram_cache", "get %X %d %d MISS", key->word(3), auxkey1, auxkey2);
+  CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_misses_stat, 1);
+  return 0;
+}
+
+RamCacheLRUEntry * RamCacheLRU::remove(RamCacheLRUEntry *e) {
+  RamCacheLRUEntry *ret = e->hash_link.next;
+  uint32_t b = e->key.word(3) % nbuckets;
+  bucket[b].remove(e);
+  lru.remove(e);
+  bytes -= e->data->block_size();
+  CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, -e->data->block_size());
+  DDebug("ram_cache", "put %X %d %d FREED", e->key.word(3), e->auxkey1, e->auxkey2);
+  e->data = NULL;
+  THREAD_FREE(e, ramCacheLRUEntryAllocator, this_thread());
+  objects--;
+  return ret;
+}
+
+// ignore 'copy' since we don't touch the data
+int RamCacheLRU::put(INK_MD5 *key, IOBufferData *data, uint32_t len, bool, uint32_t auxkey1, uint32_t auxkey2) {
+  if (!max_bytes)
+    return 0;
+  uint32_t i = key->word(3) % nbuckets;
+  if (cache_config_ram_cache_use_seen_filter) {
+    uint16_t k = key->word(3) >> 16;
+    uint16_t kk = seen[i];
+    seen[i] = k;
+    if ((kk != (uint16_t)k)) {
+      DDebug("ram_cache", "put %X %d %d len %d UNSEEN", key->word(3), auxkey1, auxkey2, len);
+      return 0;
+    }
+  }
+  RamCacheLRUEntry *e = bucket[i].head;
+  while (e) {
+    if (e->key == *key) {
+      if (e->auxkey1 == auxkey1 && e->auxkey2 == auxkey2) {
+        lru.remove(e);
+        lru.enqueue(e);
+        return 1;
+      } else { // discard when aux keys conflict
+        e = remove(e);
+        continue;
+      }
+    }
+    e = e->hash_link.next;
+  }
+  e = THREAD_ALLOC(ramCacheLRUEntryAllocator, this_ethread());
+  e->key = *key;
+  e->auxkey1 = auxkey1;
+  e->auxkey2 = auxkey2;
+  e->data = data;
+  bucket[i].push(e);
+  lru.enqueue(e);
+  bytes += data->block_size();
+  objects++;
+  CACHE_SUM_DYN_STAT_THREAD(cache_ram_cache_bytes_stat, data->block_size());
+  while (bytes > max_bytes) {
+    RamCacheLRUEntry *ee = lru.dequeue();
+    if (ee)
+      remove(ee);
+    else
+      break;
+  }
+  DDebug("ram_cache", "put %X %d %d INSERTED", key->word(3), auxkey1, auxkey2);
+  if (objects > nbuckets) {
+    ++ibuckets;
+    resize_hashtable();
+  }
+  return 1;
+}
+
+int RamCacheLRU::fixup(INK_MD5 * key, uint32_t old_auxkey1, uint32_t old_auxkey2, uint32_t new_auxkey1, uint32_t new_auxkey2) {
+  if (!max_bytes)
+    return 0;
+  uint32_t i = key->word(3) % nbuckets;
+  RamCacheLRUEntry *e = bucket[i].head;
+  while (e) {
+    if (e->key == *key && e->auxkey1 == old_auxkey1 && e->auxkey2 == old_auxkey2) {
+      e->auxkey1 = new_auxkey1;
+      e->auxkey2 = new_auxkey2;
+      return 1;
+    }
+    e = e->hash_link.next;
+  }
+  return 0;
+}
+
+RamCache *new_RamCacheLRU() {
+  return new RamCacheLRU;
+}
diff --git a/iocore/cache/Store.cc b/iocore/cache/Store.cc
new file mode 100644
index 00000000..023be6a2
--- /dev/null
+++ b/iocore/cache/Store.cc
@@ -0,0 +1,1194 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "P_Cache.h"
+#include "I_Layout.h"
+
+#if HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#if HAVE_SYS_DISK_H
+#include <sys/disk.h>
+#endif
+
+#if HAVE_SYS_DISKLABEL_H
+#include <sys/disklabel.h>
+#endif
+
+// Global
+Store theStore;
+
+int Store::getVolume(char* line) {
+  int v = 0;
+  if(!line) return 0;
+  char* str = strstr(line, vol_str);
+  char* vol_start = str;
+  if(!str) return 0;
+  while (*str && !ParseRules::is_digit(*str))
+    str++;
+  v = ink_atoi(str);
+
+  while (*str && ParseRules::is_digit(*str))
+    str++;
+  while(*str) {
+    *vol_start = *str;
+    vol_start++;
+    str++;
+  }
+  *vol_start = 0;
+  Debug("cache_init", "returning %d and '%s'", v, line);
+
+  if(v < 0) return 0;
+  return v;
+}
+
+
+//
+// Store
+//
+Ptr<ProxyMutex> tmp_p;
+Store::Store():n_disks(0), disk(NULL),
+#if TS_USE_INTERIM_CACHE == 1
+  n_interim_disks(0), interim_disk(NULL),
+#endif
+  vol_str("volume=")
+{
+}
+
+int
+initialize_store()
+{
+  return theStore.read_config()? -1 : 0;
+}
+
+void
+Store::add(Span * ds)
+{
+  extend(n_disks + 1);
+  disk[n_disks - 1] = ds;
+}
+
+void
+Store::add(Store & s)
+{
+  // assume on different disks
+  for (unsigned i = 0; i < s.n_disks; i++) {
+    add(s.disk[i]);
+  }
+  s.n_disks = 0;
+  s.delete_all();
+}
+
+
+
+// should be changed to handle offset in more general
+// case (where this is not a free of a "just" allocated
+// store
+void
+Store::free(Store & s)
+{
+  for (unsigned i = 0; i < s.n_disks; i++) {
+    for (Span * sd = s.disk[i]; sd; sd = sd->link.next) {
+      for (unsigned j = 0; j < n_disks; j++)
+        for (Span * d = disk[j]; d; d = d->link.next)
+          if (!strcmp(sd->pathname, d->pathname)) {
+            if (sd->offset < d->offset)
+              d->offset = sd->offset;
+            d->blocks += sd->blocks;
+            goto Lfound;
+          }
+      ink_release_assert(!"Store::free failed");
+    Lfound:;
+    }
+  }
+}
+
+void
+Store::sort()
+{
+  Span **vec = (Span **) alloca(sizeof(Span *) * n_disks);
+  memset(vec, 0, sizeof(Span *) * n_disks);
+  for (unsigned i = 0; i < n_disks; i++) {
+    vec[i] = disk[i];
+    disk[i] = NULL;
+  }
+
+  // sort by device
+
+  unsigned n = 0;
+  for (unsigned i = 0; i < n_disks; i++) {
+    for (Span * sd = vec[i]; sd; sd = vec[i]) {
+      vec[i] = vec[i]->link.next;
+      for (unsigned d = 0; d < n; d++) {
+        if (sd->disk_id == disk[d]->disk_id) {
+          sd->link.next = disk[d];
+          disk[d] = sd;
+          goto Ldone;
+        }
+      }
+      disk[n++] = sd;
+    Ldone:;
+    }
+  }
+  n_disks = n;
+
+  // sort by pathname x offset
+
+  for (unsigned i = 0; i < n_disks; i++) {
+  Lagain:
+    Span * prev = 0;
+    for (Span * sd = disk[i]; sd;) {
+      Span *next = sd->link.next;
+      if (next &&
+          ((strcmp(sd->pathname, next->pathname) < 0) ||
+           (!strcmp(sd->pathname, next->pathname) && sd->offset > next->offset))) {
+        if (!prev) {
+          disk[i] = next;
+          sd->link.next = next->link.next;
+          next->link.next = sd;
+        } else {
+          prev->link.next = next;
+          sd->link.next = next->link.next;
+          next->link.next = sd;
+        }
+        goto Lagain;
+      }
+      prev = sd;
+      sd = next;
+    }
+  }
+
+  // merge adjacent spans
+
+  for (unsigned i = 0; i < n_disks; i++) {
+    for (Span * sd = disk[i]; sd;) {
+      Span *next = sd->link.next;
+      if (next && !strcmp(sd->pathname, next->pathname)) {
+        if (!sd->file_pathname) {
+          sd->blocks += next->blocks;
+        } else if (next->offset <= sd->end()) {
+          if (next->end() >= sd->end())
+            sd->blocks += (next->end() - sd->end());
+        } else {
+          sd = next;
+          continue;
+        }
+        sd->link.next = next->link.next;
+        delete next;
+        sd = sd->link.next;
+      } else
+        sd = next;
+    }
+  }
+}
+
+int
+Span::path(char *filename, int64_t * aoffset, char *buf, int buflen)
+{
+  ink_assert(!aoffset);
+  Span *ds = this;
+
+  if ((strlen(ds->pathname) + strlen(filename) + 2) > (size_t)buflen)
+    return -1;
+  if (!ds->file_pathname) {
+    ink_filepath_make(buf, buflen, ds->pathname, filename);
+  } else {
+    ink_strlcpy(buf, ds->pathname, buflen);
+  }
+
+  return strlen(buf);
+}
+
+void
+Store::delete_all()
+{
+  for (unsigned i = 0; i < n_disks; i++) {
+    if (disk[i])
+      delete disk[i];
+  }
+  n_disks = 0;
+  ats_free(disk);
+  disk = NULL;
+}
+
+Store::~Store()
+{
+  delete_all();
+}
+
+Span::~Span()
+{
+  ats_free(pathname);
+  if (link.next)
+    delete link.next;
+}
+
+inline int
+get_int64(int fd, int64_t & data)
+{
+  char buf[PATH_NAME_MAX + 1];
+  if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+    return (-1);
+  // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+  // so the next statement should be a safe use of sscanf
+  // coverity[secure_coding]
+  if (sscanf(buf, "%" PRId64 "", &data) != 1) {
+    return (-1);
+  }
+  return 0;
+}
+
+int
+Store::remove(char *n)
+{
+  bool found = false;
+Lagain:
+  for (unsigned i = 0; i < n_disks; i++) {
+    Span *p = NULL;
+    for (Span * sd = disk[i]; sd; sd = sd->link.next) {
+      if (!strcmp(n, sd->pathname)) {
+        found = true;
+        if (p)
+          p->link.next = sd->link.next;
+        else
+          disk[i] = sd->link.next;
+        sd->link.next = NULL;
+        delete sd;
+        goto Lagain;
+      }
+      p = sd;
+    }
+  }
+  return found ? 0 : -1;
+}
+
+const char *
+Store::read_config(int fd)
+{
+  int n_dsstore = 0;
+  int ln = 0;
+  const char *err = NULL;
+  Span *sd = NULL, *cur = NULL;
+  Span *ns;
+
+  // Get pathname if not checking file
+
+  if (fd < 0) {
+    xptr<char> storage_path(RecConfigReadConfigPath("proxy.config.cache.storage_filename", "storage.config"));
+
+    Debug("cache_init", "Store::read_config, fd = -1, \"%s\"", (const char *)storage_path);
+    fd =::open(storage_path, O_RDONLY);
+    if (fd < 0) {
+      err = "error on open";
+      goto Lfail;
+    }
+  }
+  // For each line
+
+  char line[256];
+  while (ink_file_fd_readline(fd, sizeof(line) - 1, line) > 0) {
+    // update lines
+
+    line[sizeof(line) - 1] = 0;
+    ln++;
+
+    // skip comments and blank lines
+
+    if (*line == '#')
+      continue;
+    char *n = line;
+    n += strspn(n, " \t\n");
+    if (!*n)
+      continue;
+
+   int volume_id = getVolume(n);
+
+    // parse
+    Debug("cache_init", "Store::read_config: \"%s\"", n);
+
+    char *e = strpbrk(n, " \t\n");
+    int len = e ? e - n : strlen(n);
+    (void) len;
+    int64_t size = -1;
+    while (e && *e && !ParseRules::is_digit(*e))
+      e++;
+    if (e && *e) {
+      if ((size = ink_atoi64(e)) <= 0) {
+        err = "error parsing size";
+        goto Lfail;
+      }
+    }
+
+    n[len] = 0;
+    char *pp = Layout::get()->relative(n);
+    ns = new Span;
+    ns->vol_num = volume_id;
+    Debug("cache_init", "Store::read_config - ns = new Span; ns->init(\"%s\",%" PRId64 "), ns->vol_num=%d",
+      pp, size, ns->vol_num);
+    if ((err = ns->init(pp, size))) {
+      char buf[4096];
+      snprintf(buf, sizeof(buf), "could not initialize storage \"%s\" [%s]", pp, err);
+      REC_SignalWarning(REC_SIGNAL_SYSTEM_ERROR, buf);
+      Debug("cache_init", "Store::read_config - %s", buf);
+      delete ns;
+      ats_free(pp);
+      continue;
+    }
+    ats_free(pp);
+    n_dsstore++;
+
+    // new Span
+    {
+      Span *prev = cur;
+      cur = ns;
+      if (!sd)
+        sd = cur;
+      else
+        prev->link.next = cur;
+    }
+  }
+
+  ::close(fd);
+  // count the number of disks
+
+  {
+    extend(n_dsstore);
+    cur = sd;
+    Span *next = cur;
+    int i = 0;
+    while (cur) {
+      next = cur->link.next;
+      cur->link.next = NULL;
+      disk[i++] = cur;
+      cur = next;
+    }
+    sort();
+  }
+
+Lfail:;
+  return NULL;
+  return err;
+}
+
+#if TS_USE_INTERIM_CACHE == 1
+const char *
+Store::read_interim_config() {
+  char p[PATH_NAME_MAX + 1];
+  Span *sd = NULL;
+  Span *ns;
+  int interim_store = 0;
+  REC_ReadConfigString(p, "proxy.config.cache.interim.storage", PATH_NAME_MAX);
+
+  char *n = p;
+  int sz = strlen(p);
+
+  const char *err = NULL;
+  for (int len = 0; n < p + sz; n += len + 1) {
+    char *e = strpbrk(n, " \t\n");
+    len = e ? e - n : strlen(n);
+    n[len] = '\0';
+    ns = new Span;
+    if ((err = ns->init(n, -1))) {
+      char buf[4096];
+      snprintf(buf, sizeof(buf), "could not initialize storage \"%s\" [%s]", n,
+          err);
+      REC_SignalWarning(REC_SIGNAL_SYSTEM_ERROR, buf);
+      Debug("cache_init", "Store::read_interim_config - %s", buf);
+      delete ns;
+      continue;
+    }
+    ns->link.next = sd;
+    sd = ns;
+    interim_store++;
+  }
+
+  n_interim_disks = interim_store;
+  interim_disk = (Span **) ats_malloc(interim_store * sizeof(Span *));
+  {
+    int i = 0;
+    while (sd) {
+      ns = sd;
+      sd = sd->link.next;
+      ns->link.next = NULL;
+      interim_disk[i++] = ns;
+    }
+  }
+  return NULL;
+}
+#endif
+
+int
+Store::write_config_data(int fd)
+{
+  for (unsigned i = 0; i < n_disks; i++)
+    for (Span * sd = disk[i]; sd; sd = sd->link.next) {
+      char buf[PATH_NAME_MAX + 64];
+      snprintf(buf, sizeof(buf), "%s %" PRId64 "\n", sd->pathname, (int64_t) sd->blocks * (int64_t) STORE_BLOCK_SIZE);
+      if (ink_file_fd_writestring(fd, buf) == -1)
+        return (-1);
+    }
+  return 0;
+}
+
+#if defined(freebsd) || defined(darwin) || defined(openbsd)
+
+const char *
+Span::init(char *an, int64_t size)
+{
+  int devnum = 0;
+  const char *err = NULL;
+  int ret = 0;
+
+  is_mmapable_internal = true;
+
+  // handle symlinks
+
+  char *n = NULL;
+  int n_len = 0;
+  char real_n[PATH_NAME_MAX];
+
+  if ((n_len = readlink(an, real_n, sizeof(real_n) - 1)) > 0) {
+    real_n[n_len] = 0;
+    if (*real_n != '/') {
+      char *rs = strrchr(an, '/');
+      int l = 2;
+      const char *ann = "./";
+
+      if (rs) {
+        ann = an;
+        l = (rs - an) + 1;
+      }
+      memmove(real_n + l, real_n, strlen(real_n) + 1);
+      memcpy(real_n, ann, l);
+    }
+    n = real_n;
+  } else {
+    n = an;
+  }
+
+  // stat the file system
+
+  struct stat s;
+  if ((ret = stat(n, &s)) < 0) {
+    Warning("unable to stat '%s': %d %d, %s", n, ret, errno, strerror(errno));
+    return "error stat of file";
+  }
+
+  xfd fd(socketManager.open(n, O_RDONLY));
+  if (!fd) {
+    Warning("unable to open '%s': %s", n, strerror(errno));
+    return "unable to open";
+  }
+
+  struct statvfs fs;
+  if ((ret = fstatvfs(fd, &fs)) < 0) {
+    Warning("unable to statvfs '%s': %d %d, %s", n, ret, errno, strerror(errno));
+    return "unable to statvfs";
+  }
+
+  hw_sector_size = fs.f_bsize;
+  int64_t fsize = (int64_t) fs.f_blocks * (int64_t) fs.f_bsize;
+
+  switch ((s.st_mode & S_IFMT)) {
+
+  case S_IFBLK:{
+  case S_IFCHR:
+    // These IOCTLs are standard across the BSD family; Darwin has a different set though.
+#if defined(DIOCGMEDIASIZE) && defined(DIOCGSECTORSIZE)
+      if (ioctl(fd, DIOCGMEDIASIZE, &size) < 0) {
+        Warning("unable to get disk information for '%s': %s", n, strerror(errno));
+        err = "unable to get label information";
+        goto Lfail;
+      }
+      if (ioctl(fd, DIOCGSECTORSIZE, &hw_sector_size) < 0) {
+        Warning("unable to get disk information for '%s': %s", n, strerror(errno));
+        err = "unable to get label information";
+        goto Lfail;
+      }
+      devnum = s.st_rdev;
+      break;
+#else
+      Warning("unable to get disk information for '%s': %s", n, strerror(errno));
+      err = "no raw disk support on this platform";
+      goto Lfail;
+#endif
+    }
+  case S_IFDIR:
+  case S_IFREG:
+    if (size <= 0 || size > fsize) {
+      Warning("bad or missing size for '%s': size %" PRId64 " fsize %" PRId64 "", n, (int64_t) size, fsize);
+      err = "bad or missing size";
+      goto Lfail;
+    }
+    devnum = s.st_dev;
+    break;
+
+  default:
+    Warning("unknown file type '%s': %d", n, s.st_mode);
+    return "unknown file type";
+    break;
+  }
+
+  disk_id = devnum;
+
+  pathname = ats_strdup(an);
+  // igalic: blocks = size / hw_sector_size; was wrong TS-1707
+  // This code needs refactoring to unify the code-paths which are equal across platforms.
+  blocks = size / STORE_BLOCK_SIZE;
+  file_pathname = !((s.st_mode & S_IFMT) == S_IFDIR);
+
+  // This is so FreeBSD admins don't worry about our malicious code creating boot sector viruses:
+  if (((s.st_mode & S_IFMT) == S_IFBLK) || ((s.st_mode & S_IFMT) == S_IFCHR)) {
+    blocks--;
+    offset = 1;
+  }
+
+  Debug("cache_init", "Span::init - %s hw_sector_size = %d  size = %" PRId64 ", blocks = %" PRId64 ", disk_id = %d, file_pathname = %d", pathname, hw_sector_size, size, blocks, disk_id, file_pathname);
+
+Lfail:
+  return err;
+}
+
+#endif
+
+#if defined(solaris)
+
+const char *
+Span::init(char *filename, int64_t size)
+{
+  int devnum = 0;
+  const char *err = NULL;
+  int ret = 0;
+
+  //
+  // All file types on Solaris can be mmaped
+  //
+  is_mmapable_internal = true;
+
+  xfd fd(socketManager.open(filename, O_RDONLY));
+  if (!fd) {
+    Warning("unable to open '%s': %s", filename, strerror(errno));
+    return "unable to open";
+  }
+
+  // stat the file system
+  struct stat s;
+  if ((ret = fstat(fd, &s)) < 0) {
+    Warning("unable to fstat '%s': %d %d, %s", filename, ret, errno, strerror(errno));
+    err = "unable to fstat";
+    goto Lfail;
+  }
+
+
+  switch ((s.st_mode & S_IFMT)) {
+
+  case S_IFBLK:
+  case S_IFCHR:
+    devnum = s.st_rdev;
+    // maybe we should use lseek(fd, 0, SEEK_END) here (it is portable)
+    size = (int64_t) s.st_size;
+    hw_sector_size = s.st_blksize;
+    break;
+  case S_IFDIR:
+  case S_IFREG:
+    int64_t fsize;
+    struct statvfs fs;
+    if ((ret = fstatvfs(fd, &fs)) < 0) {
+      Warning("unable to statvfs '%s': %d %d, %s", filename, ret, errno, strerror(errno));
+      err = "unable to statvfs";
+      goto Lfail;
+    }
+
+    hw_sector_size = fs.f_bsize;
+    fsize = (int64_t) fs.f_blocks * (int64_t) hw_sector_size;
+
+    if (size <= 0 || size > fsize) {
+      Warning("bad or missing size for '%s': size %" PRId64 " fsize %" PRId64 "", filename, (int64_t) size, fsize);
+      err = "bad or missing size";
+      goto Lfail;
+    }
+
+    devnum = s.st_dev;
+    break;
+
+  default:
+    Warning("unknown file type '%s': %" PRId64 "", filename, (int64_t)(s.st_mode));
+    err = "unknown file type";
+    goto Lfail;
+  }
+
+  // estimate the disk SOLARIS specific
+  if ((devnum >> 16) == 0x80) {
+    disk_id = (devnum >> 3) & 0x3F;
+  } else {
+    disk_id = devnum;
+  }
+
+  pathname = ats_strdup(filename);
+  // is this right Seems like this should be size / hw_sector_size
+  // igalic: No. See TS-1707
+  blocks = size / STORE_BLOCK_SIZE;
+  file_pathname = !((s.st_mode & S_IFMT) == S_IFDIR);
+
+  Debug("cache_init", "Span::init - %s hw_sector_size = %d  size = %" PRId64 ", blocks = %" PRId64 ", disk_id = %d, file_pathname = %d", filename, hw_sector_size, size, blocks, disk_id, file_pathname);
+
+Lfail:
+  return err;
+}
+#endif
+
+#if defined(linux)
+#include <unistd.h>             /* for close() */
+#include <sys/ioctl.h>
+#include <linux/hdreg.h>        /* for struct hd_geometry */
+#include <linux/fs.h>           /* for BLKGETSIZE.  sys/mount.h is another candidate */
+
+
+const char *
+Span::init(char *filename, int64_t size)
+{
+  int devnum = 0, arg = 0;
+  int ret = 0, is_disk = 0;
+  u_int64_t heads, sectors, cylinders, adjusted_sec;
+  xfd fd;
+
+  /* Fetch file type */
+  struct stat stat_buf;
+  Debug("cache_init", "Span::init(\"%s\",%" PRId64 ")", filename, size);
+  if ((ret = stat(filename, &stat_buf)) < 0) {
+    Warning("unable to stat '%s': %d %d, %s", filename, ret, errno, strerror(errno));
+    return "cannot stat file";
+  }
+  switch (stat_buf.st_mode & S_IFMT) {
+  case S_IFBLK:
+  case S_IFCHR:
+    devnum = stat_buf.st_rdev;
+    Debug("cache_init", "Span::init - %s - devnum = %d",
+          ((stat_buf.st_mode & S_IFMT) == S_IFBLK) ? "S_IFBLK" : "S_IFCHR", devnum);
+    break;
+  case S_IFDIR:
+    devnum = stat_buf.st_dev;
+    file_pathname = 0;
+    Debug("cache_init", "Span::init - S_IFDIR - devnum = %d", devnum);
+    break;
+  case S_IFREG:
+    devnum = stat_buf.st_dev;
+    file_pathname = 1;
+    size = stat_buf.st_size;
+    Debug("cache_init", "Span::init - S_IFREG - devnum = %d", devnum);
+    break;
+  default:
+    break;
+  }
+
+  fd = socketManager.open(filename, O_RDONLY);
+  if (!fd) {
+    Warning("unable to open '%s': %s", filename, strerror(errno));
+    return "unable to open";
+  }
+  Debug("cache_init", "Span::init - socketManager.open(\"%s\", O_RDONLY) = %d", filename, (int)fd);
+
+  adjusted_sec = 1;
+#ifdef BLKPBSZGET
+  if (ioctl(fd, BLKPBSZGET, &arg) == 0)
+#else
+  if (ioctl(fd, BLKSSZGET, &arg) == 0)
+#endif
+  {
+    hw_sector_size = arg;
+    is_disk = 1;
+    adjusted_sec = hw_sector_size / 512;
+    Debug("cache_init", "Span::init - %s hw_sector_size=%d is_disk=%d adjusted_sec=%" PRId64,
+          filename, hw_sector_size, is_disk, adjusted_sec);
+  }
+
+  alignment = 0;
+#ifdef BLKALIGNOFF
+  if (ioctl(fd, BLKALIGNOFF, &arg) == 0) {
+    alignment = arg;
+    Debug("cache_init", "Span::init - %s alignment = %d", filename, alignment);
+  }
+#endif
+
+  if (is_disk) {
+    u_int32_t ioctl_sectors = 0;
+    u_int64_t ioctl_bytes = 0;
+    u_int64_t physsectors = 0;
+
+    /* Disks cannot be mmapped */
+    is_mmapable_internal = false;
+
+    if (!ioctl(fd, BLKGETSIZE64, &ioctl_bytes)) {
+      heads = 1;
+      cylinders = 1;
+      physsectors = ioctl_bytes / hw_sector_size;
+      sectors = physsectors;
+    } else if (!ioctl(fd, BLKGETSIZE, &ioctl_sectors)) {
+      heads = 1;
+      cylinders = 1;
+      physsectors = ioctl_sectors;
+      sectors = physsectors / adjusted_sec;
+    } else {
+      struct hd_geometry geometry;
+      if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
+        heads = geometry.heads;
+        sectors = geometry.sectors;
+        cylinders = geometry.cylinders;
+        cylinders /= adjusted_sec;      /* do not round up */
+      } else {
+        /* Almost certainly something other than a disk device. */
+        Warning("unable to get geometry '%s': %d %s", filename, errno, strerror(errno));
+        return ("unable to get geometry");
+      }
+    }
+
+    blocks = heads * sectors * cylinders;
+
+    if (size > 0 && blocks * hw_sector_size != size) {
+      Warning("Warning: you specified a size of %" PRId64 " for %s,\n", size, filename);
+      Warning("but the device size is %" PRId64 ". Using minimum of the two.\n", (int64_t)blocks * (int64_t)hw_sector_size);
+      if ((int64_t)blocks * (int64_t)hw_sector_size < size)
+        size = (int64_t)blocks * (int64_t)hw_sector_size;
+    } else {
+      size = (int64_t)blocks * (int64_t)hw_sector_size;
+    }
+
+    /* I don't know why I'm redefining blocks to be something that is quite
+     * possibly something other than the actual number of blocks, but the
+     * code for other arches seems to.  Revisit this, perhaps. */
+    // igalic: No. See TS-1707
+    blocks = size / STORE_BLOCK_SIZE;
+
+    Debug("cache_init", "Span::init physical sectors %" PRId64 " total size %" PRId64 " geometry size %" PRId64 " store blocks %" PRId64 "",
+          physsectors, hw_sector_size * physsectors, size, blocks);
+
+    pathname = ats_strdup(filename);
+    file_pathname = 1;
+  } else {
+    Debug("cache_init", "Span::init - is_disk = %d, raw device = %s", is_disk, (major(devnum) == 162) ? "yes" : "no");
+    if (major(devnum) == 162) {
+      /* Oh, a raw device, how cute. */
+
+      if (minor(devnum) == 0)
+        return "The raw device control file (usually /dev/raw; major 162, minor 0) is not a valid cache location.\n";
+
+      is_disk = 1;
+      is_mmapable_internal = false;     /* I -think- */
+      file_pathname = 1;
+      pathname = ats_strdup(filename);
+      isRaw = 1;
+
+      if (size <= 0)
+        return "When using raw devices for cache storage, you must specify a size\n";
+    } else {
+      /* Files can be mmapped */
+      is_mmapable_internal = true;
+
+      /* The code for other arches seems to want to dereference symlinks, but I
+       * don't particularly understand that behaviour, so I'll just ignore it.
+       * :) */
+
+      pathname = ats_strdup(filename);
+      if (!file_pathname)
+        if (size <= 0)
+          return "When using directories for cache storage, you must specify a size\n";
+      Debug("cache_init", "Span::init - mapped file \"%s\", %" PRId64 "", pathname, size);
+    }
+    blocks = size / STORE_BLOCK_SIZE;
+  }
+
+  disk_id = devnum;
+
+  return NULL;
+}
+#endif
+
+
+
+void
+Store::normalize()
+{
+  unsigned ndisks = 0;
+  for (unsigned i = 0; i < n_disks; i++) {
+    if (disk[i])
+      disk[ndisks++] = disk[i];
+  }
+  n_disks = ndisks;
+}
+
+static unsigned int
+try_alloc(Store & target, Span * source, unsigned int start_blocks, bool one_only = false)
+{
+  unsigned int blocks = start_blocks;
+  Span *ds = NULL;
+  while (source && blocks) {
+    if (source->blocks) {
+      unsigned int a;           // allocated
+      if (blocks > source->blocks)
+        a = source->blocks;
+      else
+        a = blocks;
+      Span *d = new Span(*source);
+
+      d->pathname = ats_strdup(source->pathname);
+      d->blocks = a;
+      d->file_pathname = source->file_pathname;
+      d->offset = source->offset;
+      d->link.next = ds;
+
+      if (d->file_pathname)
+        source->offset += a;
+      source->blocks -= a;
+      ds = d;
+      blocks -= a;
+      if (one_only)
+        break;
+    }
+    source = source->link.next;
+  }
+  if (ds)
+    target.add(ds);
+  return start_blocks - blocks;
+}
+
+void
+Store::spread_alloc(Store & s, unsigned int blocks, bool mmapable)
+{
+  //
+  // Count the eligable disks..
+  //
+  int mmapable_disks = 0;
+  for (unsigned k = 0; k < n_disks; k++) {
+    if (disk[k]->is_mmapable()) {
+      mmapable_disks++;
+    }
+  }
+
+  int spread_over = n_disks;
+  if (mmapable) {
+    spread_over = mmapable_disks;
+  }
+
+  if (spread_over == 0) {
+    return;
+  }
+
+  int disks_left = spread_over;
+
+  for (unsigned i = 0; blocks && i < n_disks; i++) {
+    if (!(mmapable && !disk[i]->is_mmapable())) {
+      unsigned int target = blocks / disks_left;
+      if (blocks - target > total_blocks(i + 1))
+        target = blocks - total_blocks(i + 1);
+      blocks -= try_alloc(s, disk[i], target);
+      disks_left--;
+    }
+  }
+}
+
+void
+Store::try_realloc(Store & s, Store & diff)
+{
+  for (unsigned i = 0; i < s.n_disks; i++) {
+    Span *prev = 0;
+    for (Span * sd = s.disk[i]; sd;) {
+      for (unsigned j = 0; j < n_disks; j++)
+        for (Span * d = disk[j]; d; d = d->link.next)
+          if (!strcmp(sd->pathname, d->pathname)) {
+            if (sd->offset >= d->offset && (sd->end() <= d->end())) {
+              if (!sd->file_pathname || (sd->end() == d->end())) {
+                d->blocks -= sd->blocks;
+                goto Lfound;
+              } else if (sd->offset == d->offset) {
+                d->blocks -= sd->blocks;
+                d->offset += sd->blocks;
+                goto Lfound;
+              } else {
+                Span *x = new Span(*d);
+                x->pathname = ats_strdup(x->pathname);
+                // d will be the first vol
+                d->blocks = sd->offset - d->offset;
+                d->link.next = x;
+                // x will be the last vol
+                x->offset = sd->offset + sd->blocks;
+                x->blocks -= x->offset - d->offset;
+                goto Lfound;
+              }
+            }
+          }
+      {
+        if (!prev)
+          s.disk[i] = s.disk[i]->link.next;
+        else
+          prev->link.next = sd->link.next;
+        diff.extend(i + 1);
+        sd->link.next = diff.disk[i];
+        diff.disk[i] = sd;
+        sd = prev ? prev->link.next : s.disk[i];
+        continue;
+      }
+    Lfound:;
+      prev = sd;
+      sd = sd->link.next;
+    }
+  }
+  normalize();
+  s.normalize();
+  diff.normalize();
+}
+
+//
+// Stupid grab first availabled space allocator
+//
+void
+Store::alloc(Store & s, unsigned int blocks, bool one_only, bool mmapable)
+{
+  unsigned int oblocks = blocks;
+  for (unsigned i = 0; blocks && i < n_disks; i++) {
+    if (!(mmapable && !disk[i]->is_mmapable())) {
+      blocks -= try_alloc(s, disk[i], blocks, one_only);
+      if (one_only && oblocks != blocks)
+        break;
+    }
+  }
+}
+
+int
+Span::write(int fd)
+{
+  char buf[32];
+
+  if (ink_file_fd_writestring(fd, (char *) (pathname ? pathname : ")")) == -1)
+    return (-1);
+  if (ink_file_fd_writestring(fd, "\n") == -1)
+    return (-1);
+
+  snprintf(buf, sizeof(buf), "%" PRId64 "\n", blocks);
+  if (ink_file_fd_writestring(fd, buf) == -1)
+    return (-1);
+
+  snprintf(buf, sizeof(buf), "%d\n", file_pathname);
+  if (ink_file_fd_writestring(fd, buf) == -1)
+    return (-1);
+
+  snprintf(buf, sizeof(buf), "%" PRId64 "\n", offset);
+  if (ink_file_fd_writestring(fd, buf) == -1)
+    return (-1);
+
+  snprintf(buf, sizeof(buf), "%d\n", (int) is_mmapable());
+  if (ink_file_fd_writestring(fd, buf) == -1)
+    return (-1);
+
+  return 0;
+}
+
+int
+Store::write(int fd, char *name)
+{
+  char buf[32];
+
+  if (ink_file_fd_writestring(fd, name) == -1)
+    return (-1);
+  if (ink_file_fd_writestring(fd, "\n") == -1)
+    return (-1);
+
+  snprintf(buf, sizeof(buf), "%d\n", n_disks);
+  if (ink_file_fd_writestring(fd, buf) == -1)
+    return (-1);
+
+  for (unsigned i = 0; i < n_disks; i++) {
+    int n = 0;
+    Span *sd = NULL;
+    for (sd = disk[i]; sd; sd = sd->link.next) {
+      n++;
+    }
+
+    snprintf(buf, sizeof(buf), "%d\n", n);
+    if (ink_file_fd_writestring(fd, buf) == -1)
+      return (-1);
+
+    for (sd = disk[i]; sd; sd = sd->link.next) {
+      if (sd->write(fd))
+        return -1;
+    }
+  }
+  return 0;
+}
+
+int
+Span::read(int fd)
+{
+  char buf[PATH_NAME_MAX + 1], p[PATH_NAME_MAX + 1];
+
+  if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+    return (-1);
+  // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+  // so the next statement should be a safe use of sscanf
+  // coverity[secure_coding]
+  if (sscanf(buf, "%s", p) != 1) {
+    return (-1);
+  }
+  pathname = ats_strdup(p);
+  if (get_int64(fd, blocks) < 0) {
+    return -1;
+  }
+
+  int b = 0;
+  if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+    return (-1);
+  // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+  // so the next statement should be a safe use of sscanf
+  // coverity[secure_coding]
+  if (sscanf(buf, "%d", &b) != 1)
+    return (-1);
+  file_pathname = (b ? true : false);
+
+  if (get_int64(fd, offset) < 0) {
+    return -1;
+  }
+
+  int tmp;
+  if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+    return (-1);
+  // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+  // so the next statement should be a safe use of sscanf
+  // coverity[secure_coding]
+  if (sscanf(buf, "%d", &tmp) != 1)
+    return (-1);
+  set_mmapable(tmp != 0);
+
+  return (0);
+}
+
+int
+Store::read(int fd, char *aname)
+{
+  char *name = aname;
+  char tname[PATH_NAME_MAX + 1];
+  char buf[PATH_NAME_MAX + 1];
+  if (!aname)
+    name = tname;
+
+  if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+    return (-1);
+  // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+  // so the next statement should be a safe use of sscanf
+  // coverity[secure_coding]
+  if (sscanf(buf, "%s\n", name) != 1)
+    return (-1);
+
+  if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+    return (-1);
+  // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+  // so the next statement should be a safe use of sscanf
+  // coverity[secure_coding]
+  if (sscanf(buf, "%d\n", &n_disks) != 1)
+    return (-1);
+
+  disk = (Span **)ats_malloc(sizeof(Span *) * n_disks);
+  if (!disk)
+    return -1;
+  memset(disk, 0, sizeof(Span *) * n_disks);
+  for (unsigned i = 0; i < n_disks; i++) {
+    int n = 0;
+
+    if (ink_file_fd_readline(fd, PATH_NAME_MAX, buf) <= 0)
+      return (-1);
+    // the above line will guarantee buf to be no longer than PATH_NAME_MAX
+    // so the next statement should be a safe use of sscanf
+    // coverity[secure_coding]
+    if (sscanf(buf, "%d\n", &n) != 1)
+      return (-1);
+
+    Span *sd = NULL;
+    while (n--) {
+      Span *last = sd;
+      sd = new Span;
+
+      if (!last)
+        disk[i] = sd;
+      else
+        last->link.next = sd;
+      if (sd->read(fd))
+        goto Lbail;
+    }
+  }
+  return 0;
+Lbail:
+  for (unsigned i = 0; i < n_disks; i++) {
+    if (disk[i])
+      delete disk[i];
+  }
+  return -1;
+}
+
+Span *
+Span::dup()
+{
+  Span *ds = new Span(*this);
+  ds->pathname = ats_strdup(pathname);
+  if (ds->link.next)
+    ds->link.next = ds->link.next->dup();
+  return ds;
+}
+
+void
+Store::dup(Store & s)
+{
+  s.n_disks = n_disks;
+  s.disk = (Span **)ats_malloc(sizeof(Span *) * n_disks);
+  for (unsigned i = 0; i < n_disks; i++) {
+    s.disk[i] = disk[i]->dup();
+  }
+}
+
+int
+Store::clear(char *filename, bool clear_dirs)
+{
+  char z[STORE_BLOCK_SIZE];
+  memset(z, 0, STORE_BLOCK_SIZE);
+  for (unsigned i = 0; i < n_disks; i++) {
+    Span *ds = disk[i];
+    for (int j = 0; j < disk[i]->paths(); j++) {
+      char path[PATH_NAME_MAX + 1];
+      Span *d = ds->nth(j);
+      if (!clear_dirs && !d->file_pathname)
+        continue;
+      int r = d->path(filename, NULL, path, PATH_NAME_MAX);
+      if (r < 0)
+        return -1;
+      int fd =::open(path, O_RDWR | O_CREAT, 0644);
+      if (fd < 0)
+        return -1;
+      for (int b = 0; d->blocks; b++)
+        if (socketManager.pwrite(fd, z, STORE_BLOCK_SIZE, d->offset + (b * STORE_BLOCK_SIZE)) < 0) {
+          close(fd);
+          return -1;
+        }
+      close(fd);
+    }
+  }
+  return 0;
+}
diff --git a/iocore/cluster/ClusterAPI.cc b/iocore/cluster/ClusterAPI.cc
new file mode 100644
index 00000000..9a9ddaac
--- /dev/null
+++ b/iocore/cluster/ClusterAPI.cc
@@ -0,0 +1,580 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterAPI.cc
+
+	Support for Cluster RPC API.
+****************************************************************************/
+#include "P_Cluster.h"
+
+#include "InkAPIInternal.h"
+
+class ClusterAPIPeriodicSM;
+static void send_machine_online_list(TSClusterStatusHandle_t *);
+
+typedef struct node_callout_entry
+{
+  Ptr<ProxyMutex> mutex;
+  TSClusterStatusFunction func;
+  int state;                    // See NE_STATE_XXX defines
+} node_callout_entry_t;
+
+#define NE_STATE_FREE			0
+#define NE_STATE_INITIALIZED		1
+
+#define MAX_CLUSTERSTATUS_CALLOUTS 	32
+
+static ProxyMutex *ClusterAPI_mutex;
+static ClusterAPIPeriodicSM *periodicSM;
+
+static node_callout_entry_t status_callouts[MAX_CLUSTERSTATUS_CALLOUTS];
+static TSClusterRPCFunction RPC_Functions[API_END_CLUSTER_FUNCTION];
+
+#define INDEX_TO_CLUSTER_STATUS_HANDLE(i) ((TSClusterStatusHandle_t)((i)))
+#define CLUSTER_STATUS_HANDLE_TO_INDEX(h) ((int) ((h)))
+#define NODE_HANDLE_TO_IP(h) (*((struct in_addr *) &((h))))
+#define RPC_FUNCTION_KEY_TO_CLUSTER_NUMBER(k) ((int)((k)))
+#define IP_TO_NODE_HANDLE(ip) ((TSNodeHandle_t)((ip)))
+#define SIZEOF_RPC_MSG_LESS_DATA (sizeof(TSClusterRPCMsg_t) - \
+	 (sizeof(TSClusterRPCMsg_t) - sizeof(TSClusterRPCHandle_t)))
+
+typedef struct RPCHandle
+{
+  union
+  {                             // Note: All union elements are assumed to be the same size
+    //       sizeof(u.internal) == sizeof(u.external)
+    TSClusterRPCHandle_t external;
+    struct real_format
+    {
+      int cluster_function;
+      int magic;
+    } internal;
+  } u;
+} RPCHandle_t;
+
+#define RPC_HANDLE_MAGIC 0x12345678
+
+class MachineStatusSM;
+typedef int (MachineStatusSM::*MachineStatusSMHandler) (int, void *);
+class MachineStatusSM:public Continuation
+{
+public:
+  // Broadcast constructor
+  MachineStatusSM(TSNodeHandle_t h, TSNodeStatus_t s):_node_handle(h), _node_status(s), _status_handle(0),
+    _broadcast(1), _restart(0), _next_n(0)
+  {
+    SET_HANDLER((MachineStatusSMHandler)
+                & MachineStatusSM::MachineStatusSMEvent);
+  }
+  // Unicast constructor
+  MachineStatusSM(TSNodeHandle_t h, TSNodeStatus_t s,
+                  TSClusterStatusHandle_t sh):_node_handle(h), _node_status(s), _status_handle(sh),
+    _broadcast(0), _restart(0), _next_n(0)
+  {
+    SET_HANDLER((MachineStatusSMHandler)
+                & MachineStatusSM::MachineStatusSMEvent);
+  }
+  // Send machine online list constructor
+MachineStatusSM(TSClusterStatusHandle_t sh):
+  _node_handle(0), _node_status(NODE_ONLINE), _status_handle(sh), _broadcast(0), _restart(0), _next_n(0) {
+    SET_HANDLER((MachineStatusSMHandler)
+                & MachineStatusSM::MachineStatusSMEvent);
+  }
+  ~MachineStatusSM() {
+  }
+  int MachineStatusSMEvent(Event * e, void *d);
+
+private:
+  TSNodeHandle_t _node_handle;
+  TSNodeStatus_t _node_status;
+  TSClusterStatusHandle_t _status_handle;      // Valid only if !_broadcast
+  int _broadcast;
+  int _restart;
+  int _next_n;
+};
+
+int
+MachineStatusSM::MachineStatusSMEvent(Event * /* e ATS_UNUSED */, void * /* d ATS_UNUSED */)
+{
+  int n;
+  EThread *et = this_ethread();
+
+  if (_broadcast) {
+    /////////////////////////////////////////////////////
+    // Broadcast node transition to all subscribers
+    /////////////////////////////////////////////////////
+    n = _restart ? _next_n : 0;
+    for (; n < MAX_CLUSTERSTATUS_CALLOUTS; ++n) {
+      if (status_callouts[n].func && (status_callouts[n].state == NE_STATE_INITIALIZED)) {
+
+        MUTEX_TRY_LOCK(lock, status_callouts[n].mutex, et);
+        if (lock) {
+          status_callouts[n].func(&_node_handle, _node_status);
+          Debug("cluster_api", "callout: n %d ([%u.%u.%u.%u], %d)", n, DOT_SEPARATED(_node_handle), _node_status);
+        } else {
+          _restart = 1;
+          _next_n = n;
+          return EVENT_CONT;
+        }
+      }
+    }
+  } else {
+    if (!_node_handle) {
+      /////////////////////////////////////////////////////
+      // Send online node list to a specific subscriber
+      /////////////////////////////////////////////////////
+      n = CLUSTER_STATUS_HANDLE_TO_INDEX(_status_handle);
+      if (status_callouts[n].func) {
+        MUTEX_TRY_LOCK(lock, status_callouts[n].mutex, et);
+        if (lock) {
+          int mi;
+          unsigned int my_ipaddr = (this_cluster_machine())->ip;
+          ClusterConfiguration *cc;
+
+          TSNodeHandle_t nh;
+
+          cc = this_cluster()->current_configuration();
+          if (cc) {
+            for (mi = 0; mi < cc->n_machines; ++mi) {
+              if (cc->machines[mi]->ip != my_ipaddr) {
+                nh = IP_TO_NODE_HANDLE(cc->machines[mi]->ip);
+                status_callouts[n].func(&nh, NODE_ONLINE);
+
+                Debug("cluster_api",
+                      "initial callout: n %d ([%u.%u.%u.%u], %d)", n, DOT_SEPARATED(cc->machines[mi]->ip), NODE_ONLINE);
+              }
+            }
+          }
+          status_callouts[n].state = NE_STATE_INITIALIZED;
+
+        } else {
+          _restart = 1;
+          _next_n = n;
+          return EVENT_CONT;
+        }
+      }
+    } else {
+      /////////////////////////////////////////////////////
+      // Send node status to a specific subscriber
+      /////////////////////////////////////////////////////
+      n = CLUSTER_STATUS_HANDLE_TO_INDEX(_status_handle);
+      if (status_callouts[n].func) {
+        MUTEX_TRY_LOCK(lock, status_callouts[n].mutex, et);
+        if (lock) {
+          status_callouts[n].func(&_node_handle, _node_status);
+
+          Debug("cluster_api",
+                "directed callout: n %d ([%u.%u.%u.%u], %d)", n, DOT_SEPARATED(_node_handle), _node_status);
+        } else {
+          _restart = 1;
+          _next_n = n;
+          return EVENT_CONT;
+        }
+      }
+    }
+  }
+  delete this;
+  return EVENT_DONE;
+}
+
+class ClusterAPIPeriodicSM;
+typedef int (ClusterAPIPeriodicSM::*ClusterAPIPeriodicSMHandler) (int, void *);
+class ClusterAPIPeriodicSM:public Continuation
+{
+public:
+  ClusterAPIPeriodicSM(ProxyMutex * m):Continuation(m), _active_msmp(0)
+  {
+    SET_HANDLER((ClusterAPIPeriodicSMHandler)
+                & ClusterAPIPeriodicSM::ClusterAPIPeriodicSMEvent);
+  }
+   ~ClusterAPIPeriodicSM()
+  {
+  }
+  int ClusterAPIPeriodicSMEvent(int, void *);
+  MachineStatusSM *GetNextSM();
+
+private:
+  MachineStatusSM * _active_msmp;
+};
+
+static InkAtomicList status_callout_atomic_q;
+static Queue<MachineStatusSM> status_callout_q;
+
+MachineStatusSM *
+ClusterAPIPeriodicSM::GetNextSM()
+{
+  MachineStatusSM *msmp;
+  MachineStatusSM *msmp_next;
+
+  while (1) {
+    msmp = status_callout_q.pop();
+    if (!msmp) {
+      msmp = (MachineStatusSM *)
+        ink_atomiclist_popall(&status_callout_atomic_q);
+      if (msmp) {
+        while (msmp) {
+          msmp_next = (MachineStatusSM *) msmp->link.next;
+          msmp->link.next = 0;
+          status_callout_q.push(msmp);
+          msmp = msmp_next;
+        }
+        continue;
+      } else {
+        break;
+      }
+    } else {
+      break;
+    }
+  }
+  return msmp;
+}
+
+int
+ClusterAPIPeriodicSM::ClusterAPIPeriodicSMEvent(int e, void *d)
+{
+  // Maintain node status event order by serializing the processing.
+  int ret;
+
+  while (1) {
+    if (_active_msmp) {
+      ret = _active_msmp->handleEvent(e, d);
+      if (ret != EVENT_DONE) {
+        return EVENT_CONT;
+      }
+    }
+    _active_msmp = GetNextSM();
+    if (!_active_msmp) {
+      break;
+    }
+  }
+  return EVENT_CONT;
+}
+
+void
+clusterAPI_init()
+{
+  MachineStatusSM *mssmp = 0;
+  ink_atomiclist_init(&status_callout_atomic_q,
+                      "cluster API status_callout_q", (char *) &mssmp->link.next - (char *) mssmp);
+  ClusterAPI_mutex = new_ProxyMutex();
+  MUTEX_TRY_LOCK(lock, ClusterAPI_mutex, this_ethread());
+  ink_release_assert(lock);     // Should never fail
+  periodicSM = new ClusterAPIPeriodicSM(ClusterAPI_mutex);
+
+  // TODO: Should we do something with this return value?
+  eventProcessor.schedule_every(periodicSM, HRTIME_SECONDS(1), ET_CALL);
+}
+
+/*
+ *  Add the given function to the node status callout list which is
+ *  invoked on each machine up/down transition.
+ *
+ *  Note: Using blocking mutex since interface is synchronous and is only
+ *	  called at plugin load time.
+ */
+int
+TSAddClusterStatusFunction(TSClusterStatusFunction Status_Function, TSMutex m, TSClusterStatusHandle_t * h)
+{
+  Debug("cluster_api", "TSAddClusterStatusFunction func %p", Status_Function);
+  int n;
+  EThread *e = this_ethread();
+
+  ink_release_assert(Status_Function);
+  MUTEX_TAKE_LOCK(ClusterAPI_mutex, e);
+  for (n = 0; n < MAX_CLUSTERSTATUS_CALLOUTS; ++n) {
+    if (!status_callouts[n].func) {
+      status_callouts[n].mutex = (ProxyMutex *) m;
+      status_callouts[n].func = Status_Function;
+      MUTEX_UNTAKE_LOCK(ClusterAPI_mutex, e);
+      *h = INDEX_TO_CLUSTER_STATUS_HANDLE(n);
+
+      Debug("cluster_api", "TSAddClusterStatusFunction: func %p n %d", Status_Function, n);
+      return 0;
+    }
+  }
+  MUTEX_UNTAKE_LOCK(ClusterAPI_mutex, e);
+  return 1;
+}
+
+/*
+ *  Remove the given function from the node status callout list
+ *  established via TSAddClusterStatusFunction().
+ *
+ *  Note: Using blocking mutex since interface is synchronous and is only
+ *	  called at plugin unload time (unload currently not supported).
+ */
+int
+TSDeleteClusterStatusFunction(TSClusterStatusHandle_t * h)
+{
+  int n = CLUSTER_STATUS_HANDLE_TO_INDEX(*h);
+  EThread *e = this_ethread();
+
+  ink_release_assert((n >= 0) && (n < MAX_CLUSTERSTATUS_CALLOUTS));
+  Debug("cluster_api", "TSDeleteClusterStatusFunction: n %d", n);
+
+  MUTEX_TAKE_LOCK(ClusterAPI_mutex, e);
+  status_callouts[n].mutex = 0;
+  status_callouts[n].func = (TSClusterStatusFunction) 0;
+  status_callouts[n].state = NE_STATE_FREE;
+  MUTEX_UNTAKE_LOCK(ClusterAPI_mutex, e);
+
+  return 0;
+}
+
+int
+TSNodeHandleToIPAddr(TSNodeHandle_t * h, struct in_addr *in)
+{
+  *in = NODE_HANDLE_TO_IP(*h);
+  return 0;
+}
+
+void
+TSGetMyNodeHandle(TSNodeHandle_t * h)
+{
+  *h = IP_TO_NODE_HANDLE((this_cluster_machine())->ip);
+}
+
+/*
+ *  Enable node status callouts for the added callout entry.
+ *  Issued once after the call to TSAddClusterStatusFunction()
+ *  to get the current node configuration.  All subsequent
+ *  callouts are updates to the state obtained at this point.
+ */
+void
+TSEnableClusterStatusCallout(TSClusterStatusHandle_t * h)
+{
+  int ci = CLUSTER_STATUS_HANDLE_TO_INDEX(*h);
+  // This isn't used.
+  // int my_ipaddr = (this_cluster_machine())->ip;
+  ink_release_assert((ci >= 0) && (ci < MAX_CLUSTERSTATUS_CALLOUTS));
+
+  if (status_callouts[ci].state == NE_STATE_INITIALIZED) {
+    return;
+  }
+
+  Debug("cluster_api", "TSEnableClusterStatusCallout: n %d", ci);
+  send_machine_online_list(h);
+}
+
+static void
+send_machine_online_list(TSClusterStatusHandle_t * h)
+{
+  MachineStatusSM *msm = new MachineStatusSM(*h);
+
+  ink_atomiclist_push(&status_callout_atomic_q, (void *) msm);
+}
+
+/*
+ *  Send node online to a specific cluster status entry.
+ */
+// This doesn't seem to be used...
+#ifdef NOT_USED_HERE
+static void
+directed_machine_online(int Ipaddr, TSClusterStatusHandle_t * h)
+{
+  MachineStatusSM *msm = new MachineStatusSM(IP_TO_NODE_HANDLE(Ipaddr), NODE_ONLINE, *h);
+
+  ink_atomiclist_push(&status_callout_atomic_q, (void *) msm);
+}
+#endif
+
+/*
+ *  Called directly by the Cluster upon detection of node online.
+ */
+void
+machine_online_APIcallout(int Ipaddr)
+{
+  MachineStatusSM *msm = new MachineStatusSM(IP_TO_NODE_HANDLE(Ipaddr), NODE_ONLINE);
+
+  ink_atomiclist_push(&status_callout_atomic_q, (void *) msm);
+}
+
+/*
+ *  Called directly by the Cluster upon detection of node offline.
+ */
+void
+machine_offline_APIcallout(int Ipaddr)
+{
+  MachineStatusSM *msm = new MachineStatusSM(IP_TO_NODE_HANDLE(Ipaddr), NODE_OFFLINE);
+
+  ink_atomiclist_push(&status_callout_atomic_q, (void *) msm);
+}
+
+/*
+ *  Associate the given RPC function with the given key.
+ *
+ *  Note: Using blocking mutex since interface is synchronous and is only
+ *	  called at plugin load time.
+ */
+int
+TSAddClusterRPCFunction(TSClusterRPCKey_t k, TSClusterRPCFunction func, TSClusterRPCHandle_t * h)
+{
+  RPCHandle_t handle;
+  int n = RPC_FUNCTION_KEY_TO_CLUSTER_NUMBER(k);
+  EThread *e = this_ethread();
+
+  ink_release_assert(func);
+  ink_release_assert((n >= API_STARECT_CLUSTER_FUNCTION)
+                     && (n <= API_END_CLUSTER_FUNCTION));
+  Debug("cluster_api", "TSAddClusterRPCFunction: key %d func %p", k, func);
+
+  handle.u.internal.cluster_function = n;
+  handle.u.internal.magic = RPC_HANDLE_MAGIC;
+
+  MUTEX_TAKE_LOCK(ClusterAPI_mutex, e);
+  if (n < API_END_CLUSTER_FUNCTION)
+    RPC_Functions[n] = func;
+  MUTEX_UNTAKE_LOCK(ClusterAPI_mutex, e);
+
+  *h = handle.u.external;
+  return 0;
+}
+
+/*
+ *  Remove the given RPC function added via TSAddClusterRPCFunction().
+ *
+ *  Note: Using blocking mutex since interface is synchronous and is only
+ *	  called at plugin unload time (unload currently not supported).
+ */
+int
+TSDeleteClusterRPCFunction(TSClusterRPCHandle_t * rpch)
+{
+  RPCHandle_t *h = (RPCHandle_t *) rpch;
+  EThread *e = this_ethread();
+
+  ink_release_assert(((h->u.internal.cluster_function >= API_STARECT_CLUSTER_FUNCTION)
+                      && (h->u.internal.cluster_function <= API_END_CLUSTER_FUNCTION)));
+  Debug("cluster_api", "TSDeleteClusterRPCFunction: n %d", h->u.internal.cluster_function);
+
+  MUTEX_TAKE_LOCK(ClusterAPI_mutex, e);
+  RPC_Functions[h->u.internal.cluster_function] = 0;
+  MUTEX_UNTAKE_LOCK(ClusterAPI_mutex, e);
+  return 0;
+}
+
+/*
+ *  Cluster calls us here for each RPC API function.
+ */
+void
+default_api_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  Debug("cluster_api", "default_api_ClusterFunction: [%u.%u.%u.%u] data %p len %d", DOT_SEPARATED(ch->machine->ip), data, len);
+
+  TSClusterRPCMsg_t *msg = (TSClusterRPCMsg_t *) data;
+  RPCHandle_t *rpch = (RPCHandle_t *) & msg->m_handle;
+  int cluster_function = rpch->u.internal.cluster_function;
+
+  ink_release_assert((size_t) len >= sizeof(TSClusterRPCMsg_t));
+  ink_release_assert(((cluster_function >= API_STARECT_CLUSTER_FUNCTION)
+                      && (cluster_function <= API_END_CLUSTER_FUNCTION)));
+
+  if (cluster_function < API_END_CLUSTER_FUNCTION && RPC_Functions[cluster_function]) {
+    int msg_data_len = len - SIZEOF_RPC_MSG_LESS_DATA;
+    TSNodeHandle_t nh = IP_TO_NODE_HANDLE(ch->machine->ip);
+    (*RPC_Functions[cluster_function]) (&nh, msg, msg_data_len);
+  } else {
+    clusterProcessor.free_remote_data((char *) data, len);
+  }
+}
+
+/*
+ *  Free TSClusterRPCMsg_t received via the RPC function.
+ */
+void
+TSFreeRPCMsg(TSClusterRPCMsg_t * msg, int msg_data_len)
+{
+  RPCHandle_t *rpch = (RPCHandle_t *) & msg->m_handle;
+  ink_release_assert(rpch->u.internal.magic == RPC_HANDLE_MAGIC);
+  Debug("cluster_api", "TSFreeRPCMsg: msg %p msg_data_len %d", msg, msg_data_len);
+
+  clusterProcessor.free_remote_data((char *) msg, msg_data_len + SIZEOF_RPC_MSG_LESS_DATA);
+}
+
+/*
+ *  Allocate a message structure for use in the call to TSSendClusterRPC().
+ */
+TSClusterRPCMsg_t *
+TSAllocClusterRPCMsg(TSClusterRPCHandle_t * h, int data_size)
+{
+  ink_assert(data_size >= 4);
+  if (data_size < 4) {
+    /* Message must be at least 4 bytes in length */
+    return (TSClusterRPCMsg_t *) 0;
+  }
+
+  TSClusterRPCMsg_t *rpcm;
+  OutgoingControl *c = OutgoingControl::alloc();
+
+  c->len = sizeof(OutgoingControl *) + SIZEOF_RPC_MSG_LESS_DATA + data_size;
+  c->alloc_data();
+  *((OutgoingControl **) c->data) = c;
+
+  rpcm = (TSClusterRPCMsg_t *) (c->data + sizeof(OutgoingControl *));
+  rpcm->m_handle = *h;
+
+  /*
+   * Note: We have carefully constructed TSClusterRPCMsg_t so
+   *       m_data[] is 8 byte aligned.  This allows the user to
+   *       cast m_data[] to any type without any consideration
+   *       for alignment issues.
+   */
+  return rpcm;
+}
+
+/*
+ *  Send the given message to the specified node.
+ */
+int
+TSSendClusterRPC(TSNodeHandle_t * nh, TSClusterRPCMsg_t * msg)
+{
+  struct in_addr ipaddr = NODE_HANDLE_TO_IP(*nh);
+  RPCHandle_t *rpch = (RPCHandle_t *) & msg->m_handle;
+
+  OutgoingControl *c = *((OutgoingControl **)
+                         ((char *) msg - sizeof(OutgoingControl *)));
+  ClusterConfiguration * cc = this_cluster()->current_configuration();
+  ClusterMachine *m;
+
+  ink_release_assert(rpch->u.internal.magic == RPC_HANDLE_MAGIC);
+
+  if ((m = cc->find(ipaddr.s_addr))) {
+    int len = c->len - sizeof(OutgoingControl *);
+    ink_release_assert((size_t) len >= sizeof(TSClusterRPCMsg_t));
+
+    clusterProcessor.invoke_remote(m->pop_ClusterHandler(), rpch->u.internal.cluster_function,
+                                   msg, len, (CLUSTER_OPT_STEAL | CLUSTER_OPT_DATA_IS_OCONTROL));
+    Debug("cluster_api", "TSSendClusterRPC: msg %p dlen %d [%u.%u.%u.%u] sent", msg, len, DOT_SEPARATED(ipaddr.s_addr));
+  } else {
+    Debug("cluster_api", "TSSendClusterRPC: msg %p to [%u.%u.%u.%u] dropped", msg, DOT_SEPARATED(ipaddr.s_addr));
+    c->freeall();
+  }
+
+  return 0;
+}
+
+/*
+ *  End of ClusterAPI.cc
+ */
diff --git a/iocore/cluster/ClusterCache.cc b/iocore/cluster/ClusterCache.cc
new file mode 100644
index 00000000..570168b4
--- /dev/null
+++ b/iocore/cluster/ClusterCache.cc
@@ -0,0 +1,3202 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterCache.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+
+#ifdef DEBUG
+#define CLUSTER_TEST_DEBUG	1
+#endif
+
+#ifdef ENABLE_TIME_TRACE
+int callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+int cache_callbacks = 0;
+
+int rmt_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+int rmt_cache_callbacks = 0;
+
+int lkrmt_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+int lkrmt_cache_callbacks = 0;
+
+int cntlck_acquire_time_dist[TIME_DIST_BUCKETS_SIZE];
+int cntlck_acquire_events = 0;
+
+int open_delay_time_dist[TIME_DIST_BUCKETS_SIZE];
+int open_delay_events = 0;
+
+#endif // ENABLE_TIME_TRACE
+
+// default will be read from config
+int cache_migrate_on_demand = false;
+
+/////////////////
+// Static Data //
+/////////////////
+static ClassAllocator<CacheContinuation> cacheContAllocator("cacheContAllocator");
+
+static Queue<CacheContinuation> remoteCacheContQueue[REMOTE_CONNECT_HASH];
+static Ptr<ProxyMutex> remoteCacheContQueueMutex[REMOTE_CONNECT_HASH];
+
+// 0 is an illegal sequence number
+#define CACHE_NO_RESPONSE            0
+static int cluster_sequence_number = 1;
+
+#ifdef CLUSTER_TEST_DEBUG
+static ink_hrtime cache_cluster_timeout = HRTIME_SECONDS(65536);
+#else
+static ink_hrtime cache_cluster_timeout = CACHE_CLUSTER_TIMEOUT;
+#endif
+
+///////////////////
+// Declarations  //
+///////////////////
+static CacheContinuation *find_cache_continuation(unsigned int, unsigned int);
+
+static unsigned int new_cache_sequence_number();
+
+#define DOT_SEPARATED(_x)                             \
+((unsigned char*)&(_x))[0], ((unsigned char*)&(_x))[1],   \
+  ((unsigned char*)&(_x))[2], ((unsigned char*)&(_x))[3]
+
+#define ET_CACHE_CONT_SM	ET_NET
+#define ALLOW_THREAD_STEAL	true
+
+/**********************************************************************/
+#ifdef CACHE_MSG_TRACE
+/**********************************************************************/
+
+/**********************************************************************/
+// Debug trace support for cache RPC messages
+/**********************************************************************/
+
+#define MAX_TENTRIES	4096
+struct traceEntry
+{
+  unsigned int seqno;
+  int op;
+  char *type;
+};
+struct traceEntry recvTraceTable[MAX_TENTRIES];
+struct traceEntry sndTraceTable[MAX_TENTRIES];
+
+static recvTraceTable_index = 0;
+static sndTraceTable_index = 0;
+
+void
+log_cache_op_msg(unsigned int seqno, int op, char *type)
+{
+  int t = ink_atomic_increment(&recvTraceTable_index, 1);
+  int n = recvTraceTable_index % MAX_TENTRIES;
+  recvTraceTable[n].seqno = seqno;
+  recvTraceTable[n].op = op;
+  recvTraceTable[n].type = type;
+}
+
+void
+log_cache_op_sndmsg(unsigned int seqno, int op, char *type)
+{
+  int t = ink_atomic_increment(&sndTraceTable_index, 1);
+  int n = sndTraceTable_index % MAX_TENTRIES;
+  sndTraceTable[n].seqno = seqno;
+  sndTraceTable[n].op = op;
+  sndTraceTable[n].type = type;
+}
+
+void
+dump_recvtrace_table()
+{
+  int n;
+  printf("\n");
+  for (n = 0; n < MAX_TENTRIES; ++n)
+    printf("[%d] seqno=%d, op=%d type=%s\n", n, recvTraceTable[n].seqno,
+           recvTraceTable[n].op, recvTraceTable[n].type ? recvTraceTable[n].type : "");
+}
+
+void
+dump_sndtrace_table()
+{
+  int n;
+  printf("\n");
+  for (n = 0; n < MAX_TENTRIES; ++n)
+    printf("[%d] seqno=%d, op=%d type=%s\n", n, sndTraceTable[n].seqno,
+           sndTraceTable[n].op, sndTraceTable[n].type ? sndTraceTable[n].type : "");
+}
+
+/**********************************************************************/
+#endif // CACHE_MSG_TRACE
+/**********************************************************************/
+
+///////////////////////////////////////////////////////////////////////
+// Cluster write VC cache.
+///////////////////////////////////////////////////////////////////////
+//
+// In the event that a remote open read fails (HTTP only), an
+// open write is issued and if successful a open write connection
+// is returned for the open read.  We cache the open write VC and
+// resolve the subsequent open write locally from the write VC cache
+// using the INK_MD5 of the URL.
+// Note that this is a global per node cache.
+///////////////////////////////////////////////////////////////////////
+
+class ClusterVConnectionCache
+{
+public:
+  ClusterVConnectionCache()
+  {
+    memset(hash_event, 0, sizeof(hash_event));
+  }
+  void init();
+  int MD5ToIndex(INK_MD5 * p);
+  int insert(INK_MD5 *, ClusterVConnection *);
+  ClusterVConnection *lookup(INK_MD5 *);
+
+public:
+  struct Entry
+  {
+    LINK(Entry, link);
+    bool mark_for_delete;
+    INK_MD5 key;
+    ClusterVConnection *vc;
+
+      Entry():mark_for_delete(0), vc(0)
+    {
+    }
+     ~Entry()
+    {
+    }
+  };
+
+  enum
+  { MAX_TABLE_ENTRIES = 256,    // must be power of 2
+    SCAN_INTERVAL = 10          // seconds
+  };
+  Queue<Entry> hash_table[MAX_TABLE_ENTRIES];
+  Ptr<ProxyMutex> hash_lock[MAX_TABLE_ENTRIES];
+  Event *hash_event[MAX_TABLE_ENTRIES];
+};
+
+static ClassAllocator <
+  ClusterVConnectionCache::Entry >
+ClusterVCCacheEntryAlloc("ClusterVConnectionCache::Entry");
+
+ClusterVConnectionCache *GlobalOpenWriteVCcache = 0;
+
+/////////////////////////////////////////////////////////////////
+// Perform periodic purges of ClusterVConnectionCache entries
+/////////////////////////////////////////////////////////////////
+class ClusterVConnectionCacheEvent:public Continuation
+{
+public:
+  ClusterVConnectionCacheEvent(ClusterVConnectionCache * c, int n)
+  : Continuation(new_ProxyMutex()), cache(c), hash_index(n)
+  {
+    SET_HANDLER(&ClusterVConnectionCacheEvent::eventHandler);
+  }
+  int eventHandler(int, Event *);
+
+private:
+  ClusterVConnectionCache * cache;
+  int hash_index;
+};
+
+void
+ClusterVConnectionCache::init()
+{
+  int n;
+  ClusterVConnectionCacheEvent *eh;
+
+  for (n = 0; n < MAX_TABLE_ENTRIES; ++n) {
+    hash_lock[n] = new_ProxyMutex();
+  }
+  for (n = 0; n < MAX_TABLE_ENTRIES; ++n) {
+    // Setup up periodic purge events on each hash list
+
+    eh = new ClusterVConnectionCacheEvent(this, n);
+    hash_event[n] =
+      eventProcessor.schedule_in(eh, HRTIME_SECONDS(ClusterVConnectionCache::SCAN_INTERVAL), ET_CACHE_CONT_SM);
+  }
+}
+inline int
+ClusterVConnectionCache::MD5ToIndex(INK_MD5 * p)
+{
+  uint64_t i = p->fold();
+  int32_t h, l;
+
+  h = i >> 32;
+  l = i & 0xFFFFFFFF;
+  return ((h ^ l) % MAX_TABLE_ENTRIES) & (MAX_TABLE_ENTRIES - 1);
+}
+
+int
+ClusterVConnectionCache::insert(INK_MD5 * key, ClusterVConnection * vc)
+{
+  int index = MD5ToIndex(key);
+  Entry *e;
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  MUTEX_TRY_LOCK(lock, hash_lock[index], thread);
+  if (!lock) {
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_INSERT_LOCK_MISSES_STAT);
+    return 0;                   // lock miss, retry later
+
+  } else {
+    // Add entry to list
+
+    e = ClusterVCCacheEntryAlloc.alloc();
+    e->key = *key;
+    e->vc = vc;
+    hash_table[index].enqueue(e);
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_INSERTS_STAT);
+  }
+  return 1;                     // Success
+}
+
+ClusterVConnection *
+ClusterVConnectionCache::lookup(INK_MD5 * key)
+{
+  int index = MD5ToIndex(key);
+  Entry *e;
+  ClusterVConnection *vc = 0;
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  MUTEX_TRY_LOCK(lock, hash_lock[index], thread);
+  if (!lock) {
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_LOOKUP_LOCK_MISSES_STAT);
+    return vc;                  // lock miss, retry later
+
+  } else {
+    e = hash_table[index].head;
+    while (e) {
+      if (*key == e->key) {     // Hit
+        vc = e->vc;
+        hash_table[index].remove(e);
+        ClusterVCCacheEntryAlloc.free(e);
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_LOOKUP_HITS_STAT);
+        return vc;
+
+      } else {
+        e = e->link.next;
+      }
+    }
+  }
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_LOOKUP_MISSES_STAT);
+  return (ClusterVConnection *) - 1;    // Miss
+}
+
+int
+ClusterVConnectionCacheEvent::eventHandler(int /* event ATS_UNUSED */, Event * e)
+{
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_SCANS_STAT);
+  MUTEX_TRY_LOCK(lock, cache->hash_lock[hash_index], this_ethread());
+  if (!lock) {
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_SCAN_LOCK_MISSES_STAT);
+    e->schedule_in(HRTIME_MSECONDS(10));
+    return EVENT_DONE;
+  }
+  // Perform purge action on unreferenced VC(s).
+
+  ClusterVConnectionCache::Entry * entry;
+  ClusterVConnectionCache::Entry * next_entry;
+  entry = cache->hash_table[hash_index].head;
+
+  while (entry) {
+    if (entry->mark_for_delete) {
+      next_entry = entry->link.next;
+
+      cache->hash_table[hash_index].remove(entry);
+      entry->vc->allow_remote_close();
+      entry->vc->do_io(VIO::CLOSE);
+
+      ClusterVCCacheEntryAlloc.free(entry);
+      entry = next_entry;
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_CACHE_PURGES_STAT);
+
+    } else {
+      entry->mark_for_delete = true;
+      entry = entry->link.next;
+    }
+  }
+
+  // Setup for next purge event
+
+  e->schedule_in(HRTIME_SECONDS(ClusterVConnectionCache::SCAN_INTERVAL), ET_CACHE_CONT_SM);
+  return EVENT_DONE;
+}
+
+///////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////
+// init()
+//   Global initializations for CacheContinuation
+////////////////////////////////////////////////////
+int
+CacheContinuation::init()
+{
+  int n;
+  for (n = 0; n < REMOTE_CONNECT_HASH; ++n)
+    remoteCacheContQueueMutex[n] = new_ProxyMutex();
+
+  GlobalOpenWriteVCcache = new ClusterVConnectionCache;
+  GlobalOpenWriteVCcache->init();
+  return 0;
+}
+
+///////////////////////////////////////////////////////////////////////
+// do_op()
+//   Main function to do a cluster cache operation
+///////////////////////////////////////////////////////////////////////
+Action *
+CacheContinuation::do_op(Continuation * c, ClusterMachine * mp, void *args,
+                         int user_opcode, char *data, int data_len, int nbytes, MIOBuffer * b)
+{
+  CacheContinuation *cc = 0;
+  Action *act = 0;
+  char *msg = 0;
+  ClusterHandler *ch = mp->pop_ClusterHandler();
+
+  /////////////////////////////////////////////////////////////////////
+  // Unconditionally map open read buffer interfaces to open read.
+  // open read buffer interfaces are now deprecated.
+  /////////////////////////////////////////////////////////////////////
+  int opcode = user_opcode;
+  switch (opcode) {
+  case CACHE_OPEN_READ_BUFFER:
+    opcode = CACHE_OPEN_READ;
+    break;
+  case CACHE_OPEN_READ_BUFFER_LONG:
+    opcode = CACHE_OPEN_READ_LONG;
+    break;
+  default:
+    break;
+  }
+
+  if (!ch)
+    goto no_send_exit;
+
+  if (c) {
+    cc = cacheContAllocator_alloc();
+    cc->ch = ch;
+    cc->target_machine = mp;
+    cc->request_opcode = opcode;
+    cc->mutex = c->mutex;
+    cc->action = c;
+    cc->action.cancelled = false;
+    cc->start_time = ink_get_hrtime();
+    cc->from = mp;
+    cc->result = op_failure(opcode);
+    SET_CONTINUATION_HANDLER(cc, (CacheContHandler)
+                             & CacheContinuation::remoteOpEvent);
+    act = &cc->action;
+
+    // set up sequence number so we can find this continuation
+
+    cc->target_ip = mp->ip;
+    cc->seq_number = new_cache_sequence_number();
+
+    // establish timeout for cache op
+
+    unsigned int hash = FOLDHASH(cc->target_ip, cc->seq_number);
+    MUTEX_TRY_LOCK(queuelock, remoteCacheContQueueMutex[hash], this_ethread());
+    if (!queuelock) {
+
+      // failed to acquire lock: no problem, retry later
+      cc->timeout = eventProcessor.schedule_in(cc, CACHE_RETRY_PERIOD, ET_CACHE_CONT_SM);
+    } else {
+      remoteCacheContQueue[hash].enqueue(cc);
+      MUTEX_RELEASE(queuelock);
+      cc->timeout = eventProcessor.schedule_in(cc, cache_cluster_timeout, ET_CACHE_CONT_SM);
+    }
+  }
+  //
+  // Determine the type of the "Over The Wire" (OTW) message header and
+  //   initialize it.
+  //
+  Debug("cache_msg",
+        "do_op opcode=%d seqno=%d Machine=%p data=%p datalen=%d mio=%p",
+        opcode, (c ? cc->seq_number : CACHE_NO_RESPONSE), mp, data, data_len, b);
+
+  switch (opcode) {
+  case CACHE_OPEN_WRITE_BUFFER:
+  case CACHE_OPEN_WRITE_BUFFER_LONG:
+    {
+      ink_release_assert(!"write buffer not supported");
+      break;
+    }
+  case CACHE_OPEN_READ_BUFFER:
+  case CACHE_OPEN_READ_BUFFER_LONG:
+    {
+      ink_release_assert(!"read buffer not supported");
+      break;
+    }
+  case CACHE_OPEN_WRITE:
+  case CACHE_OPEN_READ:
+    {
+      ink_release_assert(c > 0);
+      //////////////////////
+      // Use short format //
+      //////////////////////
+      if (!data) {
+        data_len = op_to_sizeof_fixedlen_msg(opcode);
+        data = (char *) ALLOCA_DOUBLE(data_len);
+      }
+      msg = (char *) data;
+      CacheOpMsg_short *m = (CacheOpMsg_short *) msg;
+      m->init();
+      m->opcode = opcode;
+      m->cfl_flags = ((CacheOpArgs_General *) args)->cfl_flags;
+      m->md5 = *((CacheOpArgs_General *) args)->url_md5;
+      cc->url_md5 = m->md5;
+      m->seq_number = (c ? cc->seq_number : CACHE_NO_RESPONSE);
+      m->frag_type = ((CacheOpArgs_General *) args)->frag_type;
+      if (opcode == CACHE_OPEN_WRITE) {
+        m->nbytes = nbytes;
+        m->data = (uint32_t) ((CacheOpArgs_General *) args)->pin_in_cache;
+      } else {
+        m->nbytes = 0;
+        m->data = 0;
+      }
+
+      if (opcode == CACHE_OPEN_READ) {
+        //
+        // Set upper limit on initial data received with response
+        // for open read response
+        //
+        m->buffer_size = DEFAULT_MAX_BUFFER_SIZE;
+      } else {
+        m->buffer_size = 0;
+      }
+
+      //
+      // Establish the local VC
+      //
+      int res = setup_local_vc(msg, data_len, cc, mp, &act);
+      if (!res) {
+        /////////////////////////////////////////////////////
+        // Unable to setup local VC, request aborted.
+        // Remove request from pending list and deallocate.
+        /////////////////////////////////////////////////////
+        cc->remove_and_delete(0, (Event *) 0);
+        return act;
+
+      } else if (res != -1) {
+        ///////////////////////////////////////
+        // VC established, send request
+        ///////////////////////////////////////
+        break;
+
+      } else {
+        //////////////////////////////////////////////////////
+        // Unable to setup VC, delay required, await callback
+        //////////////////////////////////////////////////////
+        goto no_send_exit;
+      }
+    }
+
+  case CACHE_OPEN_READ_LONG:
+  case CACHE_OPEN_WRITE_LONG:
+    {
+      ink_release_assert(c > 0);
+      //////////////////////
+      // Use long format  //
+      //////////////////////
+      msg = data;
+      CacheOpMsg_long *m = (CacheOpMsg_long *) msg;
+      m->init();
+      m->opcode = opcode;
+      m->cfl_flags = ((CacheOpArgs_General *) args)->cfl_flags;
+      m->url_md5 = *((CacheOpArgs_General *) args)->url_md5;
+      cc->url_md5 = m->url_md5;
+      m->seq_number = (c ? cc->seq_number : CACHE_NO_RESPONSE);
+      m->nbytes = nbytes;
+      m->data = (uint32_t) ((CacheOpArgs_General *) args)->pin_in_cache;
+      m->frag_type = (uint32_t) ((CacheOpArgs_General *) args)->frag_type;
+
+      if (opcode == CACHE_OPEN_READ_LONG) {
+        //
+        // Set upper limit on initial data received with response
+        // for open read response
+        //
+        m->buffer_size = DEFAULT_MAX_BUFFER_SIZE;
+      } else {
+        m->buffer_size = 0;
+      }
+      //
+      // Establish the local VC
+      //
+      int res = setup_local_vc(msg, data_len, cc, mp, &act);
+      if (!res) {
+        /////////////////////////////////////////////////////
+        // Unable to setup local VC, request aborted.
+        // Remove request from pending list and deallocate.
+        /////////////////////////////////////////////////////
+        cc->remove_and_delete(0, (Event *) 0);
+        return act;
+
+      } else if (res != -1) {
+        ///////////////////////////////////////
+        // VC established, send request
+        ///////////////////////////////////////
+        break;
+
+      } else {
+        //////////////////////////////////////////////////////
+        // Unable to setup VC, delay required, await callback
+        //////////////////////////////////////////////////////
+        goto no_send_exit;
+      }
+    }
+  case CACHE_UPDATE:
+  case CACHE_REMOVE:
+  case CACHE_DEREF:
+    {
+      //////////////////////
+      // Use short format //
+      //////////////////////
+      msg = data;
+      CacheOpMsg_short *m = (CacheOpMsg_short *) msg;
+      m->init();
+      m->opcode = opcode;
+      m->frag_type = ((CacheOpArgs_Deref *) args)->frag_type;
+      m->cfl_flags = ((CacheOpArgs_Deref *) args)->cfl_flags;
+      if (opcode == CACHE_DEREF)
+        m->md5 = *((CacheOpArgs_Deref *) args)->md5;
+      else
+        m->md5 = *((CacheOpArgs_General *) args)->url_md5;
+      m->seq_number = (c ? cc->seq_number : CACHE_NO_RESPONSE);
+      break;
+    }
+  case CACHE_LINK:
+    {
+      ////////////////////////
+      // Use short_2 format //
+      ////////////////////////
+      msg = data;
+      CacheOpMsg_short_2 *m = (CacheOpMsg_short_2 *) msg;
+      m->init();
+      m->opcode = opcode;
+      m->cfl_flags = ((CacheOpArgs_Link *) args)->cfl_flags;
+      m->md5_1 = *((CacheOpArgs_Link *) args)->from;
+      m->md5_2 = *((CacheOpArgs_Link *) args)->to;
+      m->seq_number = (c ? cc->seq_number : CACHE_NO_RESPONSE);
+      m->frag_type = ((CacheOpArgs_Link *) args)->frag_type;
+      break;
+    }
+  default:
+    msg = 0;
+    break;
+  }
+#ifdef CACHE_MSG_TRACE
+  log_cache_op_sndmsg((c ? cc->seq_number : CACHE_NO_RESPONSE), 0, "do_op");
+#endif
+  clusterProcessor.invoke_remote(ch,
+                                 op_needs_marshalled_coi(opcode) ? CACHE_OP_MALLOCED_CLUSTER_FUNCTION
+                                 : CACHE_OP_CLUSTER_FUNCTION, (char *) msg, data_len);
+
+no_send_exit:
+  if (c) {
+    return act;
+  } else {
+    return (Action *) 0;
+  }
+}
+
+int
+CacheContinuation::setup_local_vc(char *data, int data_len, CacheContinuation * cc, ClusterMachine * mp, Action ** act)
+{
+  bool read_op = op_is_read(cc->request_opcode);
+  bool short_msg = op_is_shortform(cc->request_opcode);
+
+  // Alloc buffer, copy message and attach to continuation
+  cc->setMsgBufferLen(data_len);
+  cc->allocMsgBuffer();
+  memcpy(cc->getMsgBuffer(), data, data_len);
+
+  SET_CONTINUATION_HANDLER(cc, (CacheContHandler)
+                           & CacheContinuation::localVCsetupEvent);
+
+  if (short_msg) {
+    Debug("cache_proto", "open_local-s (%s) seqno=%d", (read_op ? "R" : "W"), ((CacheOpMsg_short *) data)->seq_number);
+  } else {
+    Debug("cache_proto", "open_local-l (%s) seqno=%d", (read_op ? "R" : "W"), ((CacheOpMsg_long *) data)->seq_number);
+  }
+
+  // Create local VC
+  ClusterVConnection *vc;
+
+  if (!read_op && (cc->request_opcode == CACHE_OPEN_WRITE_LONG)) {
+    // Determine if the open_write has already been established.
+    vc = cc->lookupOpenWriteVC();
+
+  } else {
+    vc = clusterProcessor.open_local(cc, mp, cc->open_local_token,
+                                     (CLUSTER_OPT_ALLOW_IMMEDIATE |
+                                      (read_op ? CLUSTER_OPT_CONN_READ : CLUSTER_OPT_CONN_WRITE)));
+  }
+  if (!vc) {
+    // Error, abort request
+    if (short_msg) {
+      Debug("cache_proto", "0open_local-s (%s) failed, seqno=%d",
+            (read_op ? "R" : "W"), ((CacheOpMsg_short *) data)->seq_number);
+    } else {
+      Debug("cache_proto", "1open_local-l (%s) failed, seqno=%d",
+            (read_op ? "R" : "W"), ((CacheOpMsg_long *) data)->seq_number);
+    }
+    cc->freeMsgBuffer();
+    if (cc->timeout)
+      cc->timeout->cancel();
+    cc->timeout = NULL;
+
+    // Post async failure callback on a different continuation.
+    *act = callback_failure(&cc->action, (read_op ? CACHE_EVENT_OPEN_READ_FAILED : CACHE_EVENT_OPEN_WRITE_FAILED), 0);
+    return 0;
+
+  } else if (vc != CLUSTER_DELAYED_OPEN) {
+    // We have established the VC
+    if (read_op) {
+      cc->read_cluster_vc = vc;
+    } else {
+      cc->write_cluster_vc = vc;
+    }
+    cc->cluster_vc_channel = vc->channel;
+    vc->current_cont = cc;
+
+    if (short_msg) {
+      CacheOpMsg_short *ms = (CacheOpMsg_short *) data;
+      ms->channel = vc->channel;
+      ms->token = cc->open_local_token;
+      Debug("cache_proto",
+            "0open_local-s (%s) success, seqno=%d chan=%d token=%d,%d VC=%p",
+            (read_op ? "R" : "W"), ms->seq_number, vc->channel, ms->token.ip_created, ms->token.sequence_number, vc);
+    } else {
+      CacheOpMsg_long *ml = (CacheOpMsg_long *) data;
+      ml->channel = vc->channel;
+      ml->token = cc->open_local_token;
+      Debug("cache_proto",
+            "1open_local-l (%s) success, seqno=%d chan=%d token=%d,%d VC=%p",
+            (read_op ? "R" : "W"), ml->seq_number, vc->channel, ml->token.ip_created, ml->token.sequence_number, vc);
+    }
+    cc->freeMsgBuffer();
+    SET_CONTINUATION_HANDLER(cc, (CacheContHandler)
+                             & CacheContinuation::remoteOpEvent);
+    return 1;
+
+  } else {
+    //////////////////////////////////////////////////////
+    // Unable to setup VC, delay required, await callback
+    //////////////////////////////////////////////////////
+    return -1;
+  }
+}
+
+ClusterVConnection *
+CacheContinuation::lookupOpenWriteVC()
+{
+  ///////////////////////////////////////////////////////////////
+  // See if we already have an open_write ClusterVConnection
+  // which was established in a previous remote open_read which
+  // failed.
+  ///////////////////////////////////////////////////////////////
+  ClusterVConnection *vc;
+  CacheOpMsg_long *ml = (CacheOpMsg_long *) getMsgBuffer();
+
+  vc = GlobalOpenWriteVCcache->lookup(&ml->url_md5);
+
+  if (vc == ((ClusterVConnection *) 0)) {
+    // Retry lookup
+    SET_CONTINUATION_HANDLER(this, (CacheContHandler)
+                             & CacheContinuation::lookupOpenWriteVCEvent);
+    //
+    // Note: In the lookupOpenWriteVCEvent handler, we use EVENT_IMMEDIATE
+    //       to distinguish the lookup retry from a request timeout
+    //       which uses EVENT_INTERVAL.
+    //
+    lookup_open_write_vc_event = eventProcessor.schedule_imm(this, ET_CACHE_CONT_SM);
+
+  } else if (vc != ((ClusterVConnection *) - 1)) {
+    // Hit, found open_write VC in cache.
+    // Post open_write completion by simulating a
+    // remote cache op result message.
+
+    vc->action_ = action;       // establish new continuation
+
+    SET_CONTINUATION_HANDLER(this, (CacheContHandler)
+                             & CacheContinuation::localVCsetupEvent);
+    this->handleEvent(CLUSTER_EVENT_OPEN_EXISTS, vc);
+
+    CacheOpReplyMsg msg;
+    int msglen;
+
+    msglen = CacheOpReplyMsg::sizeof_fixedlen_msg();
+    msg.result = CACHE_EVENT_OPEN_WRITE;
+    msg.seq_number = seq_number;
+    msg.token = vc->token;
+
+    cache_op_result_ClusterFunction(ch, (void *) &msg, msglen);
+
+  } else {
+    // Miss, establish local VC and send remote open_write request
+
+    SET_CONTINUATION_HANDLER(this, (CacheContHandler)
+                             & CacheContinuation::localVCsetupEvent);
+    vc = clusterProcessor.open_local(this, from, open_local_token,
+                                     (CLUSTER_OPT_ALLOW_IMMEDIATE | CLUSTER_OPT_CONN_WRITE));
+    if (!vc) {
+      this->handleEvent(CLUSTER_EVENT_OPEN_FAILED, 0);
+
+    } else if (vc != CLUSTER_DELAYED_OPEN) {
+      this->handleEvent(CLUSTER_EVENT_OPEN, vc);
+    }
+  }
+  return CLUSTER_DELAYED_OPEN;  // force completion in callback
+}
+
+int
+CacheContinuation::lookupOpenWriteVCEvent(int event, Event * e)
+{
+  if (event == EVENT_IMMEDIATE) {
+    // Retry open_write VC lookup
+    lookupOpenWriteVC();
+
+  } else {
+    lookup_open_write_vc_event->cancel();
+    SET_CONTINUATION_HANDLER(this, (CacheContHandler)
+                             & CacheContinuation::localVCsetupEvent);
+    this->handleEvent(event, e);
+  }
+  return EVENT_DONE;
+}
+
+int
+CacheContinuation::remove_and_delete(int /* event ATS_UNUSED */, Event * e)
+{
+  unsigned int hash = FOLDHASH(target_ip, seq_number);
+  MUTEX_TRY_LOCK(queuelock, remoteCacheContQueueMutex[hash], this_ethread());
+  if (queuelock) {
+    if (remoteCacheContQueue[hash].in(this)) {
+      remoteCacheContQueue[hash].remove(this);
+    }
+    MUTEX_RELEASE(queuelock);
+    if (use_deferred_callback)
+      callback_failure(&action, result, result_error, this);
+    else
+      cacheContAllocator_free(this);
+
+  } else {
+    SET_HANDLER((CacheContHandler) & CacheContinuation::remove_and_delete);
+    if (!e) {
+      timeout = eventProcessor.schedule_in(this, cache_cluster_timeout, ET_CACHE_CONT_SM);
+    } else {
+      e->schedule_in(cache_cluster_timeout);
+    }
+  }
+  return EVENT_DONE;
+}
+
+int
+CacheContinuation::localVCsetupEvent(int event, ClusterVConnection * vc)
+{
+  ink_assert(magicno == (int) MagicNo);
+  ink_assert(getMsgBuffer());
+  bool short_msg = op_is_shortform(request_opcode);
+  bool read_op = op_is_read(request_opcode);
+
+  if (event == EVENT_INTERVAL) {
+    Event *e = (Event *) vc;
+    unsigned int hash = FOLDHASH(target_ip, seq_number);
+
+    MUTEX_TRY_LOCK(queuelock, remoteCacheContQueueMutex[hash], e->ethread);
+    if (!queuelock) {
+      e->schedule_in(CACHE_RETRY_PERIOD);
+      return EVENT_CONT;
+    }
+
+    if (!remoteCacheContQueue[hash].in(this)) {
+      ////////////////////////////////////////////////////
+      // Not yet queued on outstanding operations list
+      ////////////////////////////////////////////////////
+      remoteCacheContQueue[hash].enqueue(this);
+      ink_assert(timeout == e);
+      MUTEX_RELEASE(queuelock);
+      e->schedule_in(cache_cluster_timeout);
+      return EVENT_CONT;
+
+    } else {
+      /////////////////////////////////////////////////////
+      // Timeout occurred
+      /////////////////////////////////////////////////////
+      remoteCacheContQueue[hash].remove(this);
+      MUTEX_RELEASE(queuelock);
+      Debug("cluster_timeout", "0cluster op timeout %d", seq_number);
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_REMOTE_OP_TIMEOUTS_STAT);
+      timeout = (Event *) 1;    // Note timeout
+      /////////////////////////////////////////////////////////////////
+      // Note: Failure callback is sent now, but the deallocation of
+      //       the CacheContinuation is deferred until we receive the
+      //       open_local() callback.
+      /////////////////////////////////////////////////////////////////
+      if (!action.cancelled)
+        action.continuation->handleEvent((read_op ? CACHE_EVENT_OPEN_READ_FAILED : CACHE_EVENT_OPEN_WRITE_FAILED), 0);
+      return EVENT_DONE;
+    }
+
+  } else if (((event == CLUSTER_EVENT_OPEN) || (event == CLUSTER_EVENT_OPEN_EXISTS))
+             && (((ptrdiff_t) timeout & (ptrdiff_t) 1) == 0)) {
+    ink_hrtime now;
+    now = ink_get_hrtime();
+    CLUSTER_SUM_DYN_STAT(CLUSTER_OPEN_DELAY_TIME_STAT, now - start_time);
+    LOG_EVENT_TIME(start_time, open_delay_time_dist, open_delay_events);
+    if (read_op) {
+      read_cluster_vc = vc;
+    } else {
+      write_cluster_vc = vc;
+    }
+    cluster_vc_channel = vc->channel;
+    vc->current_cont = this;
+
+    if (short_msg) {
+      CacheOpMsg_short *ms = (CacheOpMsg_short *) getMsgBuffer();
+      ms->channel = vc->channel;
+      ms->token = open_local_token;
+
+      Debug("cache_proto",
+            "2open_local-s (%s) success, seqno=%d chan=%d token=%d,%d VC=%p",
+            (read_op ? "R" : "W"), ms->seq_number, vc->channel, ms->token.ip_created, ms->token.sequence_number, vc);
+
+    } else {
+      CacheOpMsg_long *ml = (CacheOpMsg_long *) getMsgBuffer();
+      ml->channel = vc->channel;
+      ml->token = open_local_token;
+
+      Debug("cache_proto",
+            "3open_local-l (%s) success, seqno=%d chan=%d token=%d,%d VC=%p",
+            (read_op ? "R" : "W"), ml->seq_number, vc->channel, ml->token.ip_created, ml->token.sequence_number, vc);
+    }
+    SET_HANDLER((CacheContHandler) & CacheContinuation::remoteOpEvent);
+
+    if (event != CLUSTER_EVENT_OPEN_EXISTS) {
+      // Send request message
+      clusterProcessor.invoke_remote(ch,
+                                     (op_needs_marshalled_coi(request_opcode) ?
+                                      CACHE_OP_MALLOCED_CLUSTER_FUNCTION :
+                                      CACHE_OP_CLUSTER_FUNCTION), (char *) getMsgBuffer(), getMsgBufferLen());
+    }
+
+  } else {
+    int send_failure_callback = 1;
+
+    if (((ptrdiff_t) timeout & (ptrdiff_t) 1) == 0) {
+      if (short_msg) {
+        Debug("cache_proto", "2open_local-s (%s) failed, seqno=%d",
+              (read_op ? "R" : "W"), ((CacheOpMsg_short *) getMsgBuffer())->seq_number);
+      } else {
+        Debug("cache_proto", "3open_local-l (%s) failed, seqno=%d",
+              (read_op ? "R" : "W"), ((CacheOpMsg_long *) getMsgBuffer())->seq_number);
+      }
+
+    } else {
+      Debug("cache_proto", "4open_local cancelled due to timeout, seqno=%d", seq_number);
+      this->timeout = 0;
+
+      // Deallocate VC if successfully acquired
+
+      if (event == CLUSTER_EVENT_OPEN) {
+        vc->pending_remote_fill = 0;
+        vc->remote_closed = 1;  // avoid remote close msg
+        vc->do_io(VIO::CLOSE);
+      }
+      send_failure_callback = 0;        // already sent.
+    }
+
+    if (this->timeout)
+      this->timeout->cancel();
+    this->timeout = NULL;
+
+    freeMsgBuffer();
+    if (send_failure_callback) {
+      //
+      // Action corresponding to "this" already sent back to user,
+      //   use "this" to establish the failure callback after
+      //   removing ourselves from the active list.
+      //
+      this->use_deferred_callback = true;
+      this->result = (read_op ? CACHE_EVENT_OPEN_READ_FAILED : CACHE_EVENT_OPEN_WRITE_FAILED);
+      this->result_error = 0;
+      remove_and_delete(0, (Event *) 0);
+
+    } else {
+      cacheContAllocator_free(this);
+    }
+    return EVENT_DONE;
+  }
+  // Free message
+  freeMsgBuffer();
+
+  return EVENT_DONE;
+}
+
+///////////////////////////////////////////////////////////////////////////
+// cache_op_ClusterFunction()
+//   On the receiving side, handle a general cluster cache operation
+///////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// Marshaling functions for OTW message headers
+////////////////////////////////////////////////////////////////////////
+
+inline CacheOpMsg_long *
+unmarshal_CacheOpMsg_long(void *data, int NeedByteSwap)
+{
+  if (NeedByteSwap)
+    ((CacheOpMsg_long *) data)->SwapBytes();
+  return (CacheOpMsg_long *) data;
+}
+
+inline CacheOpMsg_short *
+unmarshal_CacheOpMsg_short(void *data, int NeedByteSwap)
+{
+  if (NeedByteSwap)
+    ((CacheOpMsg_short *) data)->SwapBytes();
+  return (CacheOpMsg_short *) data;
+}
+
+inline CacheOpMsg_short_2 *
+unmarshal_CacheOpMsg_short_2(void *data, int NeedByteSwap)
+{
+  if (NeedByteSwap)
+    ((CacheOpMsg_short_2 *) data)->SwapBytes();
+  return (CacheOpMsg_short_2 *) data;
+}
+
+// init_from_long() support routine for cache_op_ClusterFunction()
+inline void
+init_from_long(CacheContinuation * cont, CacheOpMsg_long * msg, ClusterMachine * m)
+{
+  cont->no_reply_message = (msg->seq_number == CACHE_NO_RESPONSE);
+  cont->seq_number = msg->seq_number;
+  cont->cfl_flags = msg->cfl_flags;
+  cont->from = m;
+  cont->url_md5 = msg->url_md5;
+  cont->cluster_vc_channel = msg->channel;
+  cont->frag_type = (CacheFragType) msg->frag_type;
+  if ((cont->request_opcode == CACHE_OPEN_WRITE_LONG)
+      || (cont->request_opcode == CACHE_OPEN_READ_LONG)) {
+    cont->pin_in_cache = (time_t) msg->data;
+  } else {
+    cont->pin_in_cache = 0;
+  }
+  cont->token = msg->token;
+  cont->nbytes = (((int) msg->nbytes < 0) ? 0 : msg->nbytes);
+
+  if (cont->request_opcode == CACHE_OPEN_READ_LONG) {
+    cont->caller_buf_freebytes = msg->buffer_size;
+  } else {
+    cont->caller_buf_freebytes = 0;
+  }
+}
+
+// init_from_short() support routine for cache_op_ClusterFunction()
+inline void
+init_from_short(CacheContinuation * cont, CacheOpMsg_short * msg, ClusterMachine * m)
+{
+  cont->no_reply_message = (msg->seq_number == CACHE_NO_RESPONSE);
+  cont->seq_number = msg->seq_number;
+  cont->cfl_flags = msg->cfl_flags;
+  cont->from = m;
+  cont->url_md5 = msg->md5;
+  cont->cluster_vc_channel = msg->channel;
+  cont->token = msg->token;
+  cont->nbytes = (((int) msg->nbytes < 0) ? 0 : msg->nbytes);
+  cont->frag_type = (CacheFragType) msg->frag_type;
+
+  if (cont->request_opcode == CACHE_OPEN_WRITE) {
+    cont->pin_in_cache = (time_t) msg->data;
+  } else {
+    cont->pin_in_cache = 0;
+  }
+
+  if (cont->request_opcode == CACHE_OPEN_READ) {
+    cont->caller_buf_freebytes = msg->buffer_size;
+  } else {
+    cont->caller_buf_freebytes = 0;
+  }
+}
+
+// init_from_short_2() support routine for cache_op_ClusterFunction()
+inline void
+init_from_short_2(CacheContinuation * cont, CacheOpMsg_short_2 * msg, ClusterMachine * m)
+{
+  cont->no_reply_message = (msg->seq_number == CACHE_NO_RESPONSE);
+  cont->seq_number = msg->seq_number;
+  cont->cfl_flags = msg->cfl_flags;
+  cont->from = m;
+  cont->url_md5 = msg->md5_1;
+  cont->frag_type = (CacheFragType) msg->frag_type;
+}
+
+void
+cache_op_ClusterFunction(ClusterHandler * ch, void *data, int len)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  ////////////////////////////////////////////////////////
+  // Note: we are running on the ET_CLUSTER thread
+  ////////////////////////////////////////////////////////
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CACHE_OUTSTANDING_STAT);
+
+  int opcode;
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+
+  if (mh->GetMsgVersion() != CacheOpMsg_long::CACHE_OP_LONG_MESSAGE_VERSION) {  ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"cache_op_ClusterFunction() bad msg version");
+  }
+  opcode = ((CacheOpMsg_long *) data)->opcode;
+
+  // If necessary, create a continuation to reflect the response back
+
+  CacheContinuation *c = CacheContinuation::cacheContAllocator_alloc();
+  c->mutex = new_ProxyMutex();
+  MUTEX_TRY_LOCK(lock, c->mutex, this_ethread());
+  c->request_opcode = opcode;
+  c->token.clear();
+  c->start_time = ink_get_hrtime();
+  c->ch = ch;
+  SET_CONTINUATION_HANDLER(c, (CacheContHandler)
+                           & CacheContinuation::replyOpEvent);
+
+  switch (opcode) {
+  case CACHE_OPEN_WRITE_BUFFER:
+  case CACHE_OPEN_WRITE_BUFFER_LONG:
+    ink_release_assert(!"cache_op_ClusterFunction WRITE_BUFFER not supported");
+    break;
+
+  case CACHE_OPEN_READ_BUFFER:
+  case CACHE_OPEN_READ_BUFFER_LONG:
+    ink_release_assert(!"cache_op_ClusterFunction READ_BUFFER not supported");
+    break;
+
+  case CACHE_OPEN_READ:
+    {
+      CacheOpMsg_short *msg = unmarshal_CacheOpMsg_short(data, mh->NeedByteSwap());
+      init_from_short(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op-s op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+      //
+      // Establish the remote side of the ClusterVConnection
+      //
+      c->write_cluster_vc = clusterProcessor.connect_local((Continuation *) 0,
+                                                           &c->token,
+                                                           c->cluster_vc_channel,
+                                                           (CLUSTER_OPT_IMMEDIATE | CLUSTER_OPT_CONN_READ));
+      if (!c->write_cluster_vc) {
+        // Unable to setup channel, abort processing.
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CHAN_INUSE_STAT);
+        Debug("chan_inuse",
+              "1Remote chan=%d inuse tok.ip=%u.%u.%u.%u tok.seqno=%d seqno=%d",
+              c->cluster_vc_channel, DOT_SEPARATED(c->token.ip_created), c->token.sequence_number, c->seq_number);
+
+        // Send cluster op failed reply
+        c->replyOpEvent(CACHE_EVENT_OPEN_READ_FAILED, (VConnection *) - ECLUSTER_CHANNEL_INUSE);
+        break;
+
+      } else {
+        c->write_cluster_vc->current_cont = c;
+      }
+      ink_release_assert(c->write_cluster_vc != CLUSTER_DELAYED_OPEN);
+      ink_release_assert((opcode == CACHE_OPEN_READ)
+                         || c->write_cluster_vc->pending_remote_fill);
+
+      SET_CONTINUATION_HANDLER(c, (CacheContHandler)
+                               & CacheContinuation::setupVCdataRead);
+      Debug("cache_proto",
+            "0read op, seqno=%d chan=%d bufsize=%d token=%d,%d",
+            msg->seq_number, msg->channel, msg->buffer_size, msg->token.ip_created, msg->token.sequence_number);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_open_read");
+#endif
+      CacheKey key(msg->md5);
+
+      char *hostname = NULL;
+      int host_len = len - op_to_sizeof_fixedlen_msg(opcode);
+      if (host_len) {
+        hostname = (char *) msg->moi.byte;
+      }
+      Cache *call_cache = caches[c->frag_type];
+      c->cache_action = call_cache->open_read(c, &key, c->frag_type, hostname, host_len);
+      break;
+    }
+  case CACHE_OPEN_READ_LONG:
+    {
+      // Cache needs message data, copy it.
+      c->setMsgBufferLen(len);
+      c->allocMsgBuffer();
+      memcpy(c->getMsgBuffer(), (char *) data, len);
+
+      int flen = CacheOpMsg_long::sizeof_fixedlen_msg();
+      CacheOpMsg_long *msg = unmarshal_CacheOpMsg_long(c->getMsgBuffer(), mh->NeedByteSwap());
+      init_from_long(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op-l op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_open_read_long");
+#endif
+      //
+      // Establish the remote side of the ClusterVConnection
+      //
+      c->write_cluster_vc = clusterProcessor.connect_local((Continuation *) 0,
+                                                           &c->token,
+                                                           c->cluster_vc_channel,
+                                                           (CLUSTER_OPT_IMMEDIATE | CLUSTER_OPT_CONN_READ));
+      if (!c->write_cluster_vc) {
+        // Unable to setup channel, abort processing.
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CHAN_INUSE_STAT);
+        Debug("chan_inuse",
+              "2Remote chan=%d inuse tok.ip=%u.%u.%u.%u tok.seqno=%d seqno=%d",
+              c->cluster_vc_channel, DOT_SEPARATED(c->token.ip_created), c->token.sequence_number, c->seq_number);
+
+        // Send cluster op failed reply
+        c->replyOpEvent(CACHE_EVENT_OPEN_READ_FAILED, (VConnection *) - ECLUSTER_CHANNEL_INUSE);
+        break;
+
+      } else {
+        c->write_cluster_vc->current_cont = c;
+      }
+      ink_release_assert(c->write_cluster_vc != CLUSTER_DELAYED_OPEN);
+      ink_release_assert((opcode == CACHE_OPEN_READ_LONG)
+                         || c->write_cluster_vc->pending_remote_fill);
+
+      SET_CONTINUATION_HANDLER(c, (CacheContHandler)
+                               & CacheContinuation::setupReadWriteVC);
+      Debug("cache_proto",
+            "1read op, seqno=%d chan=%d bufsize=%d token=%d,%d",
+            msg->seq_number, msg->channel, msg->buffer_size, msg->token.ip_created, msg->token.sequence_number);
+
+      const char *p = (const char *) msg + flen;
+      int moi_len = len - flen;
+      int res;
+
+      ink_assert(moi_len > 0);
+
+      // Unmarshal CacheHTTPHdr
+      res = c->ic_request.unmarshal((char *) p, moi_len, NULL);
+      ink_assert(res > 0);
+      ink_assert(c->ic_request.valid());
+      c->request_purge = c->ic_request.method_get_wksidx() == HTTP_WKSIDX_PURGE || c->ic_request.method_get_wksidx() == HTTP_WKSIDX_DELETE;
+      moi_len -= res;
+      p += res;
+      ink_assert(moi_len > 0);
+      // Unmarshal CacheLookupHttpConfig
+      c->ic_params = new(CacheLookupHttpConfigAllocator.alloc())
+        CacheLookupHttpConfig();
+      res = c->ic_params->unmarshal(&c->ic_arena, (const char *) p, moi_len);
+      ink_assert(res > 0);
+
+      moi_len -= res;
+      p += res;
+
+      CacheKey key(msg->url_md5);
+
+      char *hostname = NULL;
+      int host_len = 0;
+
+      if (moi_len) {
+        hostname = (char *) p;
+        host_len = moi_len;
+
+        // Save hostname and attach it to the continuation since we may
+        //  need it if we convert this to an open_write.
+
+        c->ic_hostname = new_IOBufferData(iobuffer_size_to_index(host_len));
+        c->ic_hostname_len = host_len;
+
+        memcpy(c->ic_hostname->data(), hostname, host_len);
+      }
+
+      Cache *call_cache = caches[c->frag_type];
+      Action *a = call_cache->open_read(c, &key, &c->ic_request,
+                                        c->ic_params,
+                                        c->frag_type, hostname, host_len);
+      // Get rid of purify warnings since 'c' can be freed by open_read.
+      if (a != ACTION_RESULT_DONE) {
+        c->cache_action = a;
+      }
+      break;
+    }
+  case CACHE_OPEN_WRITE:
+    {
+      CacheOpMsg_short *msg = unmarshal_CacheOpMsg_short(data, mh->NeedByteSwap());
+      init_from_short(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op-s op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_open_write");
+#endif
+      //
+      // Establish the remote side of the ClusterVConnection
+      //
+      c->read_cluster_vc = clusterProcessor.connect_local((Continuation *) 0,
+                                                          &c->token,
+                                                          c->cluster_vc_channel,
+                                                          (CLUSTER_OPT_IMMEDIATE | CLUSTER_OPT_CONN_WRITE));
+      if (!c->read_cluster_vc) {
+        // Unable to setup channel, abort processing.
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CHAN_INUSE_STAT);
+        Debug("chan_inuse",
+              "3Remote chan=%d inuse tok.ip=%u.%u.%u.%u tok.seqno=%d seqno=%d",
+              c->cluster_vc_channel, DOT_SEPARATED(c->token.ip_created), c->token.sequence_number, c->seq_number);
+
+        // Send cluster op failed reply
+        c->replyOpEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (VConnection *) - ECLUSTER_CHANNEL_INUSE);
+        break;
+
+      } else {
+        c->read_cluster_vc->current_cont = c;
+      }
+      ink_release_assert(c->read_cluster_vc != CLUSTER_DELAYED_OPEN);
+
+      CacheKey key(msg->md5);
+
+      char *hostname = NULL;
+      int host_len = len - op_to_sizeof_fixedlen_msg(opcode);
+      if (host_len) {
+        hostname = (char *) msg->moi.byte;
+      }
+
+      Cache *call_cache = caches[c->frag_type];
+      Action *a = call_cache->open_write(c, &key, c->frag_type,
+                                         !!(c->cfl_flags & CFL_OVERWRITE_ON_WRITE),
+                                         c->pin_in_cache, hostname, host_len);
+      if (a != ACTION_RESULT_DONE) {
+        c->cache_action = a;
+      }
+      break;
+    }
+  case CACHE_OPEN_WRITE_LONG:
+    {
+      // Cache needs message data, copy it.
+      c->setMsgBufferLen(len);
+      c->allocMsgBuffer();
+      memcpy(c->getMsgBuffer(), (char *) data, len);
+
+      int flen = CacheOpMsg_long::sizeof_fixedlen_msg();
+      CacheOpMsg_long *msg = unmarshal_CacheOpMsg_long(c->getMsgBuffer(), mh->NeedByteSwap());
+      init_from_long(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op-l op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_open_write_long");
+#endif
+      //
+      // Establish the remote side of the ClusterVConnection
+      //
+      c->read_cluster_vc = clusterProcessor.connect_local((Continuation *) 0,
+                                                          &c->token,
+                                                          c->cluster_vc_channel,
+                                                          (CLUSTER_OPT_IMMEDIATE | CLUSTER_OPT_CONN_WRITE));
+      if (!c->read_cluster_vc) {
+        // Unable to setup channel, abort processing.
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CHAN_INUSE_STAT);
+        Debug("chan_inuse",
+              "4Remote chan=%d inuse tok.ip=%u.%u.%u.%u tok.seqno=%d seqno=%d",
+              c->cluster_vc_channel, DOT_SEPARATED(c->token.ip_created), c->token.sequence_number, c->seq_number);
+
+        // Send cluster op failed reply
+        c->replyOpEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (VConnection *) - ECLUSTER_CHANNEL_INUSE);
+        break;
+
+      } else {
+        c->read_cluster_vc->current_cont = c;
+      }
+      ink_release_assert(c->read_cluster_vc != CLUSTER_DELAYED_OPEN);
+
+      CacheHTTPInfo *ci = 0;
+      const char *p = (const char *) msg + flen;
+      int res = 0;
+      int moi_len = len - flen;
+
+      if (moi_len && c->cfl_flags & CFL_LOPENWRITE_HAVE_OLDINFO) {
+
+        // Unmarshal old CacheHTTPInfo
+        res = HTTPInfo::unmarshal((char *) p, moi_len, NULL);
+        ink_assert(res > 0);
+        c->ic_old_info.get_handle((char *) p, moi_len);
+        ink_assert(c->ic_old_info.valid());
+        ci = &c->ic_old_info;
+      }
+      if (c->cfl_flags & CFL_ALLOW_MULTIPLE_WRITES) {
+        ink_assert(!ci);
+        ci = (CacheHTTPInfo *) CACHE_ALLOW_MULTIPLE_WRITES;
+      }
+      moi_len -= res;
+      p += res;
+
+      CacheKey key(msg->url_md5);
+      char *hostname = NULL;
+
+      if (moi_len) {
+        hostname = (char *) p;
+      }
+
+      Cache *call_cache = caches[c->frag_type];
+      Action *a = call_cache->open_write(c, &key, ci, c->pin_in_cache,
+                                         NULL, c->frag_type, hostname, moi_len);
+      if (a != ACTION_RESULT_DONE) {
+        c->cache_action = a;
+      }
+      break;
+    }
+  case CACHE_REMOVE:
+    {
+      CacheOpMsg_short *msg = unmarshal_CacheOpMsg_short(data, mh->NeedByteSwap());
+      init_from_short(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_remove");
+#endif
+      CacheKey key(msg->md5);
+
+      char *hostname = NULL;
+      int host_len = len - op_to_sizeof_fixedlen_msg(opcode);
+      if (host_len) {
+        hostname = (char *) msg->moi.byte;
+      }
+
+      Cache *call_cache = caches[c->frag_type];
+      Action *a = call_cache->remove(c, &key, c->frag_type,
+                                     !!(c->cfl_flags & CFL_REMOVE_USER_AGENTS),
+                                     !!(c->cfl_flags & CFL_REMOVE_LINK),
+                                     hostname, host_len);
+      if (a != ACTION_RESULT_DONE) {
+        c->cache_action = a;
+      }
+      break;
+    }
+  case CACHE_LINK:
+    {
+      CacheOpMsg_short_2 *msg = unmarshal_CacheOpMsg_short_2(data, mh->NeedByteSwap());
+      init_from_short_2(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_link");
+#endif
+
+      CacheKey key1(msg->md5_1);
+      CacheKey key2(msg->md5_2);
+
+      char *hostname = NULL;
+      int host_len = len - op_to_sizeof_fixedlen_msg(opcode);
+      if (host_len) {
+        hostname = (char *) msg->moi.byte;
+      }
+
+      Cache *call_cache = caches[c->frag_type];
+      Action *a = call_cache->link(c, &key1, &key2, c->frag_type,
+                                   hostname, host_len);
+      if (a != ACTION_RESULT_DONE) {
+        c->cache_action = a;
+      }
+      break;
+    }
+  case CACHE_DEREF:
+    {
+      CacheOpMsg_short *msg = unmarshal_CacheOpMsg_short(data, mh->NeedByteSwap());
+      init_from_short(c, msg, ch->machine);
+      Debug("cache_msg",
+            "cache_op op=%d seqno=%d data=%p len=%d machine=%p", opcode, c->seq_number, data, len, ch->machine);
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_msg(msg->seq_number, len, "cache_op_deref");
+#endif
+
+      CacheKey key(msg->md5);
+
+      char *hostname = NULL;
+      int host_len = len - op_to_sizeof_fixedlen_msg(opcode);
+      if (host_len) {
+        hostname = (char *) msg->moi.byte;
+      }
+
+      Cache *call_cache = caches[c->frag_type];
+      Action *a = call_cache->deref(c, &key, c->frag_type,
+                                    hostname, host_len);
+      if (a != ACTION_RESULT_DONE) {
+        c->cache_action = a;
+      }
+      break;
+    }
+
+  default:
+    {
+      ink_release_assert(0);
+    }
+  }                             // End of switch
+}
+
+void
+cache_op_malloc_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  cache_op_ClusterFunction(ch, data, len);
+  // We own the message data, free it back to the Cluster subsystem
+  clusterProcessor.free_remote_data((char *) data, len);
+}
+
+int
+CacheContinuation::setupVCdataRead(int event, VConnection * vc)
+{
+  ink_assert(magicno == (int) MagicNo);
+  //
+  // Setup the initial data read for the given Cache VC.
+  // This data is sent back in the response message.
+  //
+  if (event == CACHE_EVENT_OPEN_READ) {
+    //////////////////////////////////////////
+    // Allocate buffer and initiate read.
+    //////////////////////////////////////////
+    Debug("cache_proto", "setupVCdataRead CACHE_EVENT_OPEN_READ seqno=%d", seq_number);
+    ink_release_assert(caller_buf_freebytes);
+    SET_HANDLER((CacheContHandler) & CacheContinuation::VCdataRead);
+
+    int64_t size_index = iobuffer_size_to_index(caller_buf_freebytes);
+    MIOBuffer *buf = new_MIOBuffer(size_index);
+    readahead_reader = buf->alloc_reader();
+
+    MUTEX_TRY_LOCK(lock, mutex, this_ethread());        // prevent immediate callback
+    readahead_vio = vc->do_io_read(this, caller_buf_freebytes, buf);
+    return EVENT_DONE;
+
+  } else {
+    // Error case, deflect processing to replyOpEvent.
+    SET_HANDLER((CacheContHandler) & CacheContinuation::replyOpEvent);
+    return handleEvent(event, vc);
+  }
+}
+
+int
+CacheContinuation::VCdataRead(int event, VIO * target_vio)
+{
+  ink_release_assert(magicno == (int) MagicNo);
+  ink_release_assert(readahead_vio == target_vio);
+
+  VConnection *vc = target_vio->vc_server;
+  int reply = CACHE_EVENT_OPEN_READ;
+  int32_t object_size;
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    {
+      if (!target_vio->ndone) {
+        // Doc with zero byte body, handle as read failure
+        goto read_failed;
+      }
+      // Fall through
+    }
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+    {
+      int clone_bytes;
+      int current_ndone = target_vio->ndone;
+
+      ink_assert(current_ndone);
+      ink_assert(current_ndone <= readahead_reader->read_avail());
+
+      object_size = getObjectSize(vc, request_opcode, &cache_vc_info);
+      have_all_data = ((object_size <= caller_buf_freebytes) && (object_size == current_ndone));
+
+      // Use no more than the caller's max buffer limit
+
+      clone_bytes = current_ndone;
+      if (!have_all_data) {
+        if (current_ndone > caller_buf_freebytes) {
+          clone_bytes = caller_buf_freebytes;
+        }
+      }
+      // Clone data
+
+      IOBufferBlock *tail;
+      readahead_data = clone_IOBufferBlockList(readahead_reader->get_current_block(),
+                                               readahead_reader->start_offset, clone_bytes, &tail);
+
+      if (have_all_data) {
+        // Close VC, since no more data and also to avoid VC_EVENT_EOS
+
+        MIOBuffer *mbuf = target_vio->buffer.writer();
+        vc->do_io(VIO::CLOSE);
+        free_MIOBuffer(mbuf);
+        readahead_vio = 0;
+      }
+      SET_HANDLER((CacheContHandler) & CacheContinuation::replyOpEvent);
+      handleEvent(reply, vc);
+      return EVENT_CONT;
+    }
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  default:
+    {
+    read_failed:
+      // Read failed, deflect to replyOpEvent.
+
+      MIOBuffer * mbuf = target_vio->buffer.writer();
+      vc->do_io(VIO::CLOSE);
+      free_MIOBuffer(mbuf);
+      readahead_vio = 0;
+      reply = CACHE_EVENT_OPEN_READ_FAILED;
+
+      SET_HANDLER((CacheContHandler) & CacheContinuation::replyOpEvent);
+      handleEvent(reply, (VConnection *) - ECLUSTER_ORB_DATA_READ);
+      return EVENT_DONE;
+    }
+  }                             // End of switch
+}
+
+int
+CacheContinuation::setupReadWriteVC(int event, VConnection * vc)
+{
+  // Only handles OPEN_READ_LONG processing.
+
+  switch (event) {
+  case CACHE_EVENT_OPEN_READ:
+    {
+      // setup readahead
+
+      SET_HANDLER((CacheContHandler) & CacheContinuation::setupVCdataRead);
+      return handleEvent(event, vc);
+      break;
+    }
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    {
+      if (frag_type == CACHE_FRAG_TYPE_HTTP && !request_purge) {
+        // HTTP open read failed, attempt open write now to avoid an additional
+        //  message round trip
+
+        CacheKey key(url_md5);
+
+        Cache *call_cache = caches[frag_type];
+        Action *a = call_cache->open_write(this, &key, 0, pin_in_cache,
+                                           NULL, frag_type, ic_hostname ? ic_hostname->data() : NULL,
+                                           ic_hostname_len);
+        if (a != ACTION_RESULT_DONE) {
+          cache_action = a;
+        }
+      } else {
+        SET_HANDLER((CacheContHandler) & CacheContinuation::replyOpEvent);
+        return handleEvent(CACHE_EVENT_OPEN_READ_FAILED, 0);
+      }
+      break;
+    }
+  case CACHE_EVENT_OPEN_WRITE:
+    {
+      // Convert from read to write connection
+
+      ink_assert(!read_cluster_vc && write_cluster_vc);
+      read_cluster_vc = write_cluster_vc;
+      read_cluster_vc->set_type(CLUSTER_OPT_CONN_WRITE);
+      write_cluster_vc = 0;
+
+      SET_HANDLER((CacheContHandler) & CacheContinuation::replyOpEvent);
+      return handleEvent(event, vc);
+      break;
+    }
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+  default:
+    {
+      SET_HANDLER((CacheContHandler) & CacheContinuation::replyOpEvent);
+      return handleEvent(CACHE_EVENT_OPEN_READ_FAILED, 0);
+      break;
+    }
+  }                             // end of switch
+
+  return EVENT_DONE;
+}
+
+/////////////////////////////////////////////////////////////////////////
+// replyOpEvent()
+//   Reflect the (local) reply back to the (remote) requesting node.
+/////////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::replyOpEvent(int event, VConnection * cvc)
+{
+  ink_assert(magicno == (int) MagicNo);
+  Debug("cache_proto", "replyOpEvent(this=%p,event=%d,VC=%p)", this, event, cvc);
+  ink_hrtime now;
+  now = ink_get_hrtime();
+  CLUSTER_SUM_DYN_STAT(CLUSTER_CACHE_CALLBACK_TIME_STAT, now - start_time);
+  LOG_EVENT_TIME(start_time, callback_time_dist, cache_callbacks);
+  ink_release_assert(expect_cache_callback);
+  expect_cache_callback = false;        // make sure we are called back exactly once
+
+
+  result = event;
+  bool open = event_is_open(event);
+  bool read_op = op_is_read(request_opcode);
+  bool open_read_now_open_write = false;
+
+  // Reply message initializations
+  CacheOpReplyMsg rmsg;
+  CacheOpReplyMsg *msg = &rmsg;
+  msg->result = event;
+
+  if ((request_opcode == CACHE_OPEN_READ_LONG)
+      && cvc && (event == CACHE_EVENT_OPEN_WRITE)) {
+    //////////////////////////////////////////////////////////////////////////
+    // open read failed, but open write succeeded, set result to
+    // CACHE_EVENT_OPEN_READ_FAILED and make result token non zero to
+    // signal to the remote node that we have established a write connection.
+    //////////////////////////////////////////////////////////////////////////
+    msg->result = CACHE_EVENT_OPEN_READ_FAILED;
+    open_read_now_open_write = true;
+  }
+
+  msg->seq_number = seq_number;
+  int flen = CacheOpReplyMsg::sizeof_fixedlen_msg();    // include token
+  int len = 0;
+  int vers = 0;
+
+  int results_expected = 1;
+
+  if (no_reply_message)         // CACHE_NO_RESPONSE request
+    goto free_exit;
+
+  if (open) {
+
+    // prepare for CACHE_OPEN_EVENT
+
+    results_expected = 2;
+    cache_vc = cvc;
+    cache_read = (event == CACHE_EVENT_OPEN_READ);
+
+    if (read_op && !open_read_now_open_write) {
+      ink_release_assert(write_cluster_vc->pending_remote_fill);
+      ink_assert(have_all_data || (readahead_vio == &((CacheVC *) cache_vc)->vio));
+      Debug("cache_proto", "connect_local success seqno=%d have_all_data=%d", seq_number, (have_all_data ? 1 : 0));
+
+      if (have_all_data) {
+        msg->token.clear();     // Tell sender no conn established
+        write_cluster_vc->type = VC_CLUSTER_WRITE;
+      } else {
+        msg->token = token;     // Tell sender conn established
+        setupReadBufTunnel(cache_vc, write_cluster_vc);
+      }
+
+    } else {
+      Debug("cache_proto", "cache_open [%s] success seqno=%d", (cache_read ? "R" : "W"), seq_number);
+      msg->token = token;       // Tell sender conn established
+
+      OneWayTunnel *pOWT = OneWayTunnel::OneWayTunnel_alloc();
+      pOWT->init(read_cluster_vc, cache_vc, NULL, nbytes ? nbytes : DEFAULT_MAX_BUFFER_SIZE, this->mutex);
+      read_cluster_vc->allow_remote_close();
+      results_expected--;
+    }
+
+    // For cache reads, marshal the associated CacheHTTPInfo in the reply
+    if (cache_read) {
+      int res;
+
+      msg->is_ram_cache_hit = ((CacheVC *)cache_vc)->is_ram_cache_hit();
+
+      if (!cache_vc_info.valid()) {
+        (void) getObjectSize(cache_vc, request_opcode, &cache_vc_info);
+      }
+      // Determine data length and allocate
+      len = cache_vc_info.marshal_length();
+      CacheOpReplyMsg *reply = (CacheOpReplyMsg *) ALLOCA_DOUBLE(flen + len);
+
+      // Initialize reply message header
+      *reply = *msg;
+
+      // Marshal response data into reply message
+      res = cache_vc_info.marshal((char *) reply + flen, len);
+      ink_assert(res >= 0 && res <= len);
+
+      // Make reply message the current message
+      msg = reply;
+    }
+
+  } else {
+    Debug("cache_proto", "cache operation failed result=%d seqno=%d (this=%p)", event, seq_number, this);
+    msg->token.clear();         // Tell sender no conn established
+
+    // Reallocate reply message, allowing for marshalled data
+    len += sizeof(int32_t);
+    CacheOpReplyMsg *reply = (CacheOpReplyMsg *) ALLOCA_DOUBLE(flen + len);
+
+    // Initialize reply message header
+    *reply = *msg;
+
+    if (request_opcode != CACHE_LINK) {
+      //
+      // open read/write failed, close preallocated VC
+      //
+      if (read_cluster_vc) {
+        read_cluster_vc->remote_closed = 1;     // avoid remote close msg
+        read_cluster_vc->do_io(VIO::CLOSE);
+      }
+      if (write_cluster_vc) {
+        write_cluster_vc->pending_remote_fill = 0;
+        write_cluster_vc->remote_closed = 1;    // avoid remote close msg
+        write_cluster_vc->do_io(VIO::CLOSE);
+      }
+      reply->moi.u32 = (int32_t) ((uintptr_t) cvc & 0xffffffff);    // code describing failure
+    }
+    // Make reply message the current message
+    msg = reply;
+  }
+  CLUSTER_DECREMENT_DYN_STAT(CLUSTER_CACHE_OUTSTANDING_STAT);
+
+  //
+  // Send reply message
+  //
+#ifdef CACHE_MSG_TRACE
+  log_cache_op_sndmsg(msg->seq_number, 0, "replyOpEvent");
+#endif
+  vers = CacheOpReplyMsg::protoToVersion(from->msg_proto_major);
+  if (vers == CacheOpReplyMsg::CACHE_OP_REPLY_MESSAGE_VERSION) {
+    if (read_op) {
+      // Transmit reply message and object data in same cluster message
+      Debug("cache_proto", "Sending reply/data seqno=%d buflen=%" PRId64,
+            seq_number, readahead_data ? bytes_IOBufferBlockList(readahead_data, 1) : 0);
+      clusterProcessor.invoke_remote_data(ch,
+                                          CACHE_OP_RESULT_CLUSTER_FUNCTION,
+                                          (void *) msg, (flen + len),
+                                          readahead_data,
+                                          cluster_vc_channel, &token,
+                                          &CacheContinuation::disposeOfDataBuffer, (void *) this, CLUSTER_OPT_STEAL);
+    } else {
+      Debug("cache_proto", "Sending reply seqno=%d, (this=%p)", seq_number, this);
+      clusterProcessor.invoke_remote(ch, CACHE_OP_RESULT_CLUSTER_FUNCTION,
+                                     (void *) msg, (flen + len), CLUSTER_OPT_STEAL);
+    }
+
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"replyOpEvent() bad msg version");
+  }
+
+free_exit:
+  results_expected--;
+  if (results_expected <= 0) {
+    Debug("cache_proto", "replyOpEvent: freeing this=%p", this);
+    cacheContAllocator_free(this);
+  }
+  return EVENT_DONE;
+}
+
+void
+CacheContinuation::setupReadBufTunnel(VConnection * cache_read_vc, VConnection * cluster_write_vc)
+{
+  ////////////////////////////////////////////////////////////
+  // Setup OneWayTunnel and tunnel close event handler.
+  // Used in readahead processing on open read connections.
+  ////////////////////////////////////////////////////////////
+  tunnel_cont = cacheContAllocator_alloc();
+  tunnel_cont->mutex = this->mutex;
+  SET_CONTINUATION_HANDLER(tunnel_cont, (CacheContHandler)
+                           & CacheContinuation::tunnelClosedEvent);
+  int64_t ravail = bytes_IOBufferBlockList(readahead_data, 1);
+
+  tunnel_mutex = tunnel_cont->mutex;
+  tunnel_closed = false;
+
+  tunnel = OneWayTunnel::OneWayTunnel_alloc();
+  readahead_reader->consume(ravail);    // allow for bytes sent in initial reply
+  tunnel->init(cache_read_vc, cluster_write_vc, tunnel_cont, readahead_vio, readahead_reader);
+  tunnel_cont->action = this;
+  tunnel_cont->tunnel = tunnel;
+  tunnel_cont->tunnel_cont = tunnel_cont;
+
+  // Disable cluster_write_vc
+  ((ClusterVConnection *) cluster_write_vc)->write.enabled = 0;
+
+  // Disable cache read VC
+  readahead_vio->nbytes = readahead_vio->ndone;
+
+  /////////////////////////////////////////////////////////////////////
+  // At this point, the OneWayTunnel is blocked awaiting a reenable
+  // on both the source and target VCs. Reenable occurs after the
+  // message containing the initial data and open read reply are sent.
+  /////////////////////////////////////////////////////////////////////
+}
+
+///////////////////////////////////////////////////////////////////////
+// Tunnnel exited event handler, used for readahead on open read.
+///////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::tunnelClosedEvent(int /* event ATS_UNUSED */, void *c)
+{
+  ink_assert(magicno == (int) MagicNo);
+  // Note: We are called with the tunnel_mutex held.
+  CacheContinuation *tc = (CacheContinuation *) c;
+  ink_release_assert(tc->tunnel_cont == tc);
+  CacheContinuation *real_cc = (CacheContinuation *) tc->action.continuation;
+
+  if (real_cc) {
+    // Notify the real continuation of the tunnel closed event
+    real_cc->tunnel = 0;
+    real_cc->tunnel_cont = 0;
+    real_cc->tunnel_closed = true;
+  }
+  OneWayTunnel::OneWayTunnel_free(tc->tunnel);
+  cacheContAllocator_free(tc);
+
+  return EVENT_DONE;
+}
+
+////////////////////////////////////////////////////////////
+// Retry DisposeOfDataBuffer continuation
+////////////////////////////////////////////////////////////
+struct retryDisposeOfDataBuffer;
+typedef int (retryDisposeOfDataBuffer::*rtryDisOfDBufHandler) (int, void *);
+struct retryDisposeOfDataBuffer:public Continuation
+{
+  CacheContinuation *c;
+
+  int handleRetryEvent(int event, Event * e)
+  {
+    if (CacheContinuation::handleDisposeEvent(event, c) == EVENT_DONE) {
+      delete this;
+        return EVENT_DONE;
+    } else
+    {
+      e->schedule_in(HRTIME_MSECONDS(10));
+      return EVENT_CONT;
+    }
+  }
+  retryDisposeOfDataBuffer(CacheContinuation * cont)
+:  Continuation(new_ProxyMutex()), c(cont) {
+    SET_HANDLER((rtryDisOfDBufHandler)
+                & retryDisposeOfDataBuffer::handleRetryEvent);
+  }
+};
+
+//////////////////////////////////////////////////////////////////
+// Callback from cluster to dispose of data passed in
+// call to invoke_remote_data().
+//////////////////////////////////////////////////////////////////
+void
+CacheContinuation::disposeOfDataBuffer(void *d)
+{
+  ink_assert(d);
+  CacheContinuation *cc = (CacheContinuation *) d;
+  ink_assert(cc->have_all_data || cc->readahead_vio);
+  ink_assert(cc->have_all_data || (cc->readahead_vio == &((CacheVC *) cc->cache_vc)->vio));
+
+  if (cc->have_all_data) {
+    //
+    // All object data resides in the buffer, no OneWayTunnel
+    // started and the Cache VConnection has already been closed.
+    // Close write_cluster_vc and set remote close to avoid send of
+    // close message to remote node.
+    //
+    cc->write_cluster_vc->pending_remote_fill = 0;
+    cc->write_cluster_vc->remote_closed = 1;
+    cc->write_cluster_vc->do_io(VIO::CLOSE);
+    cc->readahead_data = 0;
+
+    cacheContAllocator_free(cc);
+
+  } else {
+    cc->write_cluster_vc->pending_remote_fill = 0;
+    cc->write_cluster_vc->allow_remote_close();
+    if (handleDisposeEvent(0, cc) == EVENT_CONT) {
+      // Setup retry continuation.
+      retryDisposeOfDataBuffer *retryCont = new retryDisposeOfDataBuffer(cc);
+      eventProcessor.schedule_in(retryCont, HRTIME_MSECONDS(10), ET_CALL);
+    }
+  }
+}
+
+int
+CacheContinuation::handleDisposeEvent(int /* event ATS_UNUSED */, CacheContinuation * cc)
+{
+  ink_assert(cc->magicno == (int) MagicNo);
+  MUTEX_TRY_LOCK(lock, cc->tunnel_mutex, this_ethread());
+  if (lock) {
+    // Write of initial object data is complete.
+
+    if (!cc->tunnel_closed) {
+      // Start tunnel by reenabling source and target VCs.
+
+      cc->tunnel->vioSource->nbytes = getObjectSize(cc->tunnel->vioSource->vc_server, cc->request_opcode, 0);
+      cc->tunnel->vioSource->reenable_re();
+
+      // Tunnel may be closed by vioSource->reenable_re(),
+      // we should check it again here:
+      if (!cc->tunnel_closed) {
+        cc->tunnel->vioTarget->reenable();
+
+        // Tell tunnel event we are gone
+        cc->tunnel_cont->action.continuation = 0;
+      }
+    }
+    cacheContAllocator_free(cc);
+    return EVENT_DONE;
+
+  } else {
+    // Lock acquire failed, retry operation.
+    return EVENT_CONT;
+  }
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// cache_op_result_ClusterFunction()
+//   Invoked on the machine which initiated a remote op, this
+//   unmarshals the result and calls a continuation in the requesting thread.
+/////////////////////////////////////////////////////////////////////////////
+void
+cache_op_result_ClusterFunction(ClusterHandler *ch, void *d, int l)
+{
+  ////////////////////////////////////////////////////////
+  // Note: we are running on the ET_CACHE_CONT_SM thread
+  ////////////////////////////////////////////////////////
+
+  // Copy reply message data
+  Ptr<IOBufferData> iob = make_ptr(new_IOBufferData(iobuffer_size_to_index(l)));
+  memcpy(iob->data(), (char *) d, l);
+  char *data = iob->data();
+  int flen, len = l;
+  CacheHTTPInfo ci;
+  CacheOpReplyMsg *msg = (CacheOpReplyMsg *) data;
+  int32_t op_result_error = 0;
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+
+  if (mh->GetMsgVersion() != CacheOpReplyMsg::CACHE_OP_REPLY_MESSAGE_VERSION) { ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"cache_op_result_ClusterFunction() bad msg version");
+  }
+
+  flen = CacheOpReplyMsg::sizeof_fixedlen_msg();
+  if (mh->NeedByteSwap())
+    msg->SwapBytes();
+
+  Debug("cluster_cache", "received cache op result, seqno=%d result=%d", msg->seq_number, msg->result);
+
+  // If applicable, unmarshal any response data
+  if ((len > flen) && event_reply_may_have_moi(msg->result)) {
+    switch (msg->result) {
+    case CACHE_EVENT_OPEN_READ:
+      {
+        char *p = (char *) msg + flen;
+        int res;
+
+        // Unmarshal CacheHTTPInfo
+        res = HTTPInfo::unmarshal(p, len, NULL);
+        ci.get_handle(p, len);
+        ink_assert(res > 0);
+        ink_assert(ci.valid());
+        break;
+      }
+    case CACHE_EVENT_LINK:
+    case CACHE_EVENT_LINK_FAILED:
+      break;
+    case CACHE_EVENT_OPEN_READ_FAILED:
+    case CACHE_EVENT_OPEN_WRITE_FAILED:
+    case CACHE_EVENT_REMOVE_FAILED:
+    case CACHE_EVENT_UPDATE_FAILED:
+    case CACHE_EVENT_DEREF_FAILED:
+      {
+        // Unmarshal the error code
+        ink_assert(((len - flen) == sizeof(int32_t)));
+        op_result_error = msg->moi.u32;
+        if (mh->NeedByteSwap())
+          ats_swap32((uint32_t *) & op_result_error);
+        op_result_error = -op_result_error;
+        break;
+      }
+    default:
+      {
+        ink_release_assert(!"invalid moi data for received msg");
+        break;
+      }
+    }                           // end of switch
+  }
+  // See if this response is still expected (expected case == yes)
+
+  unsigned int hash = FOLDHASH(ch->machine->ip, msg->seq_number);
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  if (MUTEX_TAKE_TRY_LOCK(remoteCacheContQueueMutex[hash], thread)) {
+
+    // Find it in pending list
+
+    CacheContinuation *c = find_cache_continuation(msg->seq_number,
+                                                   ch->machine->ip);
+    if (!c) {
+      // Reply took to long, response no longer expected.
+      MUTEX_UNTAKE_LOCK(remoteCacheContQueueMutex[hash], thread);
+      Debug("cluster_timeout", "0cache reply timeout: %d", msg->seq_number);
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_REMOTE_OP_REPLY_TIMEOUTS_STAT);
+      if (ci.valid())
+        ci.destroy();
+      return;
+    }
+
+    // Update remote ram cache hit flag
+    if (msg->result == CACHE_EVENT_OPEN_READ)
+      c->read_cluster_vc->set_ram_cache_hit(msg->is_ram_cache_hit);
+
+    // Try to send the message
+
+    MUTEX_TRY_LOCK(lock, c->mutex, thread);
+
+    // Failed to acquire lock, defer
+
+    if (!lock) {
+      MUTEX_UNTAKE_LOCK(remoteCacheContQueueMutex[hash], thread);
+      goto Lretry;
+    }
+    c->result_error = op_result_error;
+
+    // send message, release lock
+
+    c->freeMsgBuffer();
+    if (ci.valid()) {
+      // Unmarshaled CacheHTTPInfo contained in reply message, copy it.
+      c->setMsgBufferLen(len, iob);
+      c->ic_new_info = ci;
+    }
+    msg->seq_number = len;      // HACK ALERT: reusing variable
+    c->handleEvent(CACHE_EVENT_RESPONSE_MSG, data);
+
+  } else {
+
+    // Failed to wake it up, defer by creating a timed continuation
+
+  Lretry:
+    CacheContinuation * c = CacheContinuation::cacheContAllocator_alloc();
+    c->mutex = new_ProxyMutex();
+    c->seq_number = msg->seq_number;
+    c->target_ip = ch->machine->ip;
+    SET_CONTINUATION_HANDLER(c, (CacheContHandler)
+                             & CacheContinuation::handleReplyEvent);
+    c->start_time = ink_get_hrtime();
+    c->result = msg->result;
+    if (event_is_open(msg->result))
+      c->token = msg->token;
+    if (ci.valid()) {
+      // Unmarshaled CacheHTTPInfo contained in reply message, copy it.
+      c->setMsgBufferLen(len, iob);
+      c->ic_new_info = ci;
+    }
+    c->result_error = op_result_error;
+    eventProcessor.schedule_in(c, CACHE_RETRY_PERIOD, ET_CACHE_CONT_SM);
+  }
+}
+
+////////////////////////////////////////////////////////////////////////
+// handleReplyEvent()
+//   If we cannot acquire any of the locks to handle the response
+//   inline, it is defered and later handled by this function.
+////////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::handleReplyEvent(int event, Event * e)
+{
+  (void) event;
+
+  // take lock on outstanding message queue
+
+  EThread *t = e->ethread;
+  unsigned int hash = FOLDHASH(target_ip, seq_number);
+
+  if (!MUTEX_TAKE_TRY_LOCK(remoteCacheContQueueMutex[hash], t)) {
+    e->schedule_in(CACHE_RETRY_PERIOD);
+    return EVENT_CONT;
+  }
+
+  LOG_EVENT_TIME(start_time, cntlck_acquire_time_dist, cntlck_acquire_events);
+
+  // See if this response is still expected
+
+  CacheContinuation *c = find_cache_continuation(seq_number, target_ip);
+  if (c) {
+
+    // Acquire the lock to the continuation mutex
+
+    MUTEX_TRY_LOCK(lock, c->mutex, e->ethread);
+    if (!lock) {
+
+      // If we fail to acquire the lock, reschedule
+
+      MUTEX_UNTAKE_LOCK(remoteCacheContQueueMutex[hash], t);
+      e->schedule_in(CACHE_RETRY_PERIOD);
+      return EVENT_CONT;
+    }
+
+    // If unmarshalled CacheHTTPInfo exists, pass it along
+
+    if (ic_new_info.valid()) {
+      c->freeMsgBuffer();
+      c->setMsgBufferLen(getMsgBufferLen(), getMsgBufferIOBData());
+      c->ic_new_info = ic_new_info;
+      ic_new_info.clear();
+    }
+    // send message, release lock
+
+    c->handleEvent(CACHE_EVENT_RESPONSE, this);
+
+  } else {
+    MUTEX_UNTAKE_LOCK(remoteCacheContQueueMutex[hash], t);
+    Debug("cluster_timeout", "cache reply timeout: %d", seq_number);
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_REMOTE_OP_REPLY_TIMEOUTS_STAT);
+  }
+
+  // Free this continuation
+
+  cacheContAllocator_free(this);
+  return EVENT_DONE;
+}
+
+//////////////////////////////////////////////////////////////////////////
+// remoteOpEvent()
+//   On the requesting node, handle the timeout and response to the user.
+//   There may be two CacheContinuations involved:
+//    1) One waiting to respond to the user.
+//       This case is CACHE_EVENT_RESPONSE_MSG which is handled
+//       inline (without delay).
+//    2) One which is carrying the response from the remote machine which
+//       has been delayed for a lock.  This case is CACHE_EVENT_RESPONSE.
+//////////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::remoteOpEvent(int event_code, Event * e)
+{
+  ink_assert(magicno == (int) MagicNo);
+  int event = event_code;
+  ink_hrtime now;
+  if (start_time) {
+    int res;
+    if (event != EVENT_INTERVAL) {
+      if (event == CACHE_EVENT_RESPONSE) {
+        CacheContinuation *ccont = (CacheContinuation *) e;
+        res = ccont->result;
+      } else {
+        CacheOpReplyMsg *rmsg = (CacheOpReplyMsg *) e;
+        res = rmsg->result;
+      }
+      if ((res == CACHE_EVENT_LOOKUP) || (res == CACHE_EVENT_LOOKUP_FAILED)) {
+        now = ink_get_hrtime();
+        CLUSTER_SUM_DYN_STAT(CLUSTER_CACHE_LKRMT_CALLBACK_TIME_STAT, now - start_time);
+        LOG_EVENT_TIME(start_time, lkrmt_callback_time_dist, lkrmt_cache_callbacks);
+      } else {
+        now = ink_get_hrtime();
+        CLUSTER_SUM_DYN_STAT(CLUSTER_CACHE_RMT_CALLBACK_TIME_STAT, now - start_time);
+        LOG_EVENT_TIME(start_time, rmt_callback_time_dist, rmt_cache_callbacks);
+      }
+    }
+    start_time = 0;
+  }
+  // for CACHE_EVENT_RESPONSE/XXX the lock was acquired at the higher level
+  intptr_t return_error = 0;
+  ClusterVCToken *pToken = NULL;
+
+retry:
+
+  switch (event) {
+  default:
+    ink_assert(!"bad case");
+    return EVENT_DONE;
+
+  case EVENT_INTERVAL:{
+
+      unsigned int hash = FOLDHASH(target_ip, seq_number);
+
+      MUTEX_TRY_LOCK(queuelock, remoteCacheContQueueMutex[hash], e->ethread);
+      if (!queuelock) {
+        e->schedule_in(CACHE_RETRY_PERIOD);
+        return EVENT_CONT;
+      }
+      // we are not yet enqueued on the list of outstanding operations
+
+      if (!remoteCacheContQueue[hash].in(this)) {
+        remoteCacheContQueue[hash].enqueue(this);
+        ink_assert(timeout == e);
+        MUTEX_RELEASE(queuelock);
+        e->schedule_in(cache_cluster_timeout);
+        return EVENT_CONT;
+      }
+      // a timeout has occurred
+
+      if (find_cache_continuation(seq_number, target_ip)) {
+        // Valid timeout
+        MUTEX_RELEASE(queuelock);
+
+        Debug("cluster_timeout", "cluster op timeout %d", seq_number);
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_REMOTE_OP_TIMEOUTS_STAT);
+        request_timeout = true;
+        timeout = 0;
+        //
+        // Post error completion now and defer deallocation of
+        // the continuation until we receive the reply or the
+        // target node goes down.
+        //
+        if (!action.cancelled)
+          action.continuation->handleEvent(result, (void *) -ECLUSTER_OP_TIMEOUT);
+        action.cancelled = 1;
+
+        if (target_machine->dead) {
+          event = CACHE_EVENT_RESPONSE_MSG;
+          goto retry;
+        } else {
+          timeout = e;
+          e->schedule_in(cache_cluster_timeout);
+          return EVENT_DONE;
+        }
+
+      } else {
+        // timeout not expected for continuation; log and ignore
+        MUTEX_RELEASE(queuelock);
+        Debug("cluster_timeout", "unknown cluster op timeout %d", seq_number);
+        Note("Unexpected CacheCont timeout, [%u.%u.%u.%u] seqno=%d", DOT_SEPARATED(target_ip), seq_number);
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_REMOTE_OP_TIMEOUTS_STAT);
+        return EVENT_DONE;
+      }
+    }
+
+  case CACHE_EVENT_RESPONSE:
+  case CACHE_EVENT_RESPONSE_MSG:{
+
+      // the response has arrived, cancel timeout
+
+      if (timeout) {
+        timeout->cancel();
+        timeout = 0;
+      }
+      // remove from the pending queue
+      unsigned int hash = FOLDHASH(target_ip, seq_number);
+
+      remoteCacheContQueue[hash].remove(this);
+      MUTEX_UNTAKE_LOCK(remoteCacheContQueueMutex[hash], this_ethread());
+      // Fall through
+    }
+
+  case CACHE_EVENT_RESPONSE_RETRY:{
+
+      // determine result code
+
+      CacheContinuation *c = (CacheContinuation *) e;
+      CacheOpReplyMsg *msg = (CacheOpReplyMsg *) e;
+      if (event == CACHE_EVENT_RESPONSE_MSG) {
+        result = (request_timeout ? result : msg->result);
+        pToken = (request_timeout ? &token : &msg->token);
+      } else if (event == CACHE_EVENT_RESPONSE) {
+        result = (request_timeout ? result : c->result);
+        pToken = &c->token;
+      } else if (event == CACHE_EVENT_RESPONSE_RETRY) {
+        pToken = &token;
+      } else {
+        ink_release_assert(!"remoteOpEvent bad event code");
+      }
+
+      // handle response
+
+      if (result == CACHE_EVENT_LOOKUP) {
+        callback_user(result, 0);
+        return EVENT_DONE;
+
+      } else if (event_is_open(result)) {
+        bool read_op = ((request_opcode == CACHE_OPEN_READ)
+                        || (request_opcode == CACHE_OPEN_READ_LONG));
+        if (read_op) {
+          ink_release_assert(read_cluster_vc->pending_remote_fill > 1);
+          read_cluster_vc->pending_remote_fill = 0;
+
+          have_all_data = pToken->is_clear();   // no conn implies all data
+          if (have_all_data) {
+            read_cluster_vc->have_all_data = 1;
+          } else {
+            read_cluster_vc->have_all_data = 0;
+          }
+          // Move CacheHTTPInfo reply data into VC
+          read_cluster_vc->marshal_buf = this->getMsgBufferIOBData();
+          read_cluster_vc->alternate = this->ic_new_info;
+          this->ic_new_info.clear();
+          ink_release_assert(read_cluster_vc->alternate.object_size_get());
+
+          if (!action.cancelled) {
+            ClusterVConnection *target_vc = read_cluster_vc;
+            callback_user(result, target_vc);   // "this" is deallocated
+            target_vc->allow_remote_close();
+          } else {
+            read_cluster_vc->allow_remote_close();
+            read_cluster_vc->do_io(VIO::ABORT);
+            cacheContAllocator_free(this);
+          }
+
+        } else {
+          ink_assert(result == CACHE_EVENT_OPEN_WRITE);
+          ink_assert(!pToken->is_clear());
+
+          ClusterVConnection *result_vc = write_cluster_vc;
+          if (!action.cancelled) {
+            callback_user(result, result_vc);
+            result_vc->allow_remote_close();
+          } else {
+            result_vc->allow_remote_close();
+            result_vc->do_io(VIO::ABORT);
+            cacheContAllocator_free(this);
+          }
+        }
+        return EVENT_DONE;
+      }
+      break;
+    }                           // End of case
+  }                             // End of switch
+
+  // Handle failure cases
+
+  if (result == CACHE_EVENT_LOOKUP_FAILED) {
+
+
+    // check for local probes
+
+    ClusterMachine *m = cluster_machine_at_depth(cache_hash(url_md5));
+
+    // if the current configuration indicates that this
+    // machine is the master (or the owner machine has failed), go to
+    // the local machine.  Also if PROBE_LOCAL_CACHE_LAST.
+    //
+    int len = getMsgBufferLen();
+    char *hostname = (len ? getMsgBuffer() : 0);
+
+    if (!m || PROBE_LOCAL_CACHE_LAST) {
+      SET_HANDLER((CacheContHandler) & CacheContinuation::probeLookupEvent);
+      CacheKey key(url_md5);
+
+      Cache *call_cache = caches[frag_type];
+      call_cache->lookup(this, &key, frag_type, hostname, len);
+      return EVENT_DONE;
+    }
+    if (PROBE_LOCAL_CACHE_FIRST) {
+      callback_user(CACHE_EVENT_LOOKUP_FAILED, 0);
+    } else {
+      SET_HANDLER((CacheContHandler) & CacheContinuation::probeLookupEvent);
+      CacheKey key(url_md5);
+
+      Cache *call_cache = caches[frag_type];
+      call_cache->lookup(this, &key, frag_type, hostname, len);
+    }
+    return EVENT_DONE;
+
+  } else {
+    // Handle failure of all ops except for lookup
+
+    ClusterVConnection *cacheable_vc = 0;
+    if ((request_opcode == CACHE_OPEN_READ_LONG) && !pToken->is_clear()) {
+      ink_assert(read_cluster_vc && !write_cluster_vc);
+      //
+      // OPEN_READ_LONG has failed, but the remote node was able to
+      // establish an OPEN_WRITE_LONG connection.
+      // Convert the cluster read VC to a write VC and insert it
+      // into the global write VC cache.  This will allow us to
+      // locally resolve the subsequent OPEN_WRITE_LONG request.
+      //
+
+      // Note: We do not allow remote close on this VC while
+      //       it resides in cache
+      //
+      read_cluster_vc->set_type(CLUSTER_OPT_CONN_WRITE);
+      // FIX ME. ajitb 12/21/99
+      // Compiler bug in CC: WorkShop Compilers 5.0 98/12/15 C++ 5.0
+      // Does not accept assignment of ((Continuation *) NULL)
+      {
+        Continuation *temp = NULL;
+        read_cluster_vc->action_ = temp;
+      }
+      if (!GlobalOpenWriteVCcache->insert(&url_md5, read_cluster_vc)) {
+        // Unable to insert VC into cache, try later
+        cacheable_vc = read_cluster_vc;
+      }
+      read_cluster_vc = 0;
+    }
+    if (read_cluster_vc) {
+      read_cluster_vc->remote_closed = 0;       // send remote close
+      read_cluster_vc->allow_remote_close();
+      read_cluster_vc->do_io(VIO::ABORT);
+      read_cluster_vc = 0;
+    }
+    if (write_cluster_vc) {
+      write_cluster_vc->remote_closed = 0;      // send remote close
+      write_cluster_vc->allow_remote_close();
+      write_cluster_vc->do_io(VIO::ABORT);
+      write_cluster_vc = 0;
+    }
+    if (!request_timeout) {
+      if (!return_error) {
+        return_error = result_error;
+      }
+      if (cacheable_vc) {
+        insert_cache_callback_user(cacheable_vc, result, (void *) return_error);
+      } else {
+        callback_user(result, (void *) return_error);
+      }
+    } else {
+      // callback already made at timeout, just free continuation
+      if (cacheable_vc) {
+        cacheable_vc->allow_remote_close();
+        cacheable_vc->do_io(VIO::CLOSE);
+        cacheable_vc = 0;
+      }
+      cacheContAllocator_free(this);
+    }
+    return EVENT_DONE;
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////
+// probeLookupEvent()
+//   After a local probe, return the response to the client and cleanup.
+//////////////////////////////////////////////////////////////////////////
+
+int
+CacheContinuation::probeLookupEvent(int event, void * /* d ATS_UNUSED */)
+{
+  ink_assert(magicno == (int) MagicNo);
+  callback_user(event, 0);
+  return EVENT_DONE;
+}
+
+///////////////////////////////////////////////////////////
+// lookupEvent()
+//   Result of a local lookup for PROBE_LOCAL_CACHE_FIRST
+///////////////////////////////////////////////////////////
+int
+CacheContinuation::lookupEvent(int /* event ATS_UNUSED */, void * /* d ATS_UNUSED */)
+{
+  ink_release_assert(!"Invalid call CacheContinuation::lookupEvent");
+  return EVENT_DONE;
+
+}
+
+
+
+//////////////////////////////////////////////////////////////////////////
+// do_remote_lookup()
+//   If the object is supposed to be on a remote machine, probe there.
+//   Returns: Non zero (Action *) if a probe was initiated
+//            Zero (Action *) if no probe
+//////////////////////////////////////////////////////////////////////////
+Action *
+CacheContinuation::do_remote_lookup(Continuation * cont, CacheKey * key,
+                                    CacheContinuation * c, CacheFragType ft, char *hostname, int hostname_len)
+{
+  int probe_depth = 0;
+  ClusterMachine *past_probes[CONFIGURATION_HISTORY_PROBE_DEPTH] = { 0 };
+  int mlen = op_to_sizeof_fixedlen_msg(CACHE_LOOKUP_OP) + ((hostname && hostname_len) ? hostname_len : 0);
+  CacheLookupMsg *msg = (CacheLookupMsg *) ALLOCA_DOUBLE(mlen);
+  msg->init();
+
+
+  if (key) {
+    msg->url_md5 = *key;
+  } else {
+    ink_assert(c);
+    msg->url_md5 = c->url_md5;
+  }
+
+  ClusterMachine *m = NULL;
+
+  if (cache_migrate_on_demand) {
+    m = cluster_machine_at_depth(cache_hash(msg->url_md5),
+                                 c ? &c->probe_depth : &probe_depth, c ? c->past_probes : past_probes);
+  } else {
+
+    // If migrate-on-demand is off, do not probe beyond one level.
+
+    if (c && c->probe_depth)
+      return (Action *) 0;
+    m = cluster_machine_at_depth(cache_hash(msg->url_md5));
+    if (c)
+      c->probe_depth = 1;
+  }
+
+  if (!m)
+    return (Action *) 0;
+  ClusterHandler *ch = m->pop_ClusterHandler();
+  if (!ch)
+    return (Action *) 0;
+
+  // If we do not have a continuation, build one
+
+  if (!c) {
+    c = cacheContAllocator_alloc();
+    c->mutex = cont->mutex;
+    c->probe_depth = probe_depth;
+    memcpy(c->past_probes, past_probes, sizeof(past_probes));
+  }
+  c->ch = ch;
+  // Save hostname data in case we need to do a local lookup.
+  if (hostname && hostname_len) {
+    // Alloc buffer, copy hostname data and attach to continuation
+    c->setMsgBufferLen(hostname_len);
+    c->allocMsgBuffer();
+    memcpy(c->getMsgBuffer(), hostname, hostname_len);
+  }
+
+  c->url_md5 = msg->url_md5;
+  c->action.cancelled = false;
+  c->action = cont;
+  c->start_time = ink_get_hrtime();
+  SET_CONTINUATION_HANDLER(c, (CacheContHandler)
+                           & CacheContinuation::remoteOpEvent);
+  c->result = CACHE_EVENT_LOOKUP_FAILED;
+
+  // set up sequence number so we can find this continuation
+
+  c->target_ip = m->ip;
+  c->seq_number = new_cache_sequence_number();
+  msg->seq_number = c->seq_number;
+  c->frag_type = ft;
+  msg->frag_type = ft;
+
+  // establish timeout for lookup
+
+  unsigned int hash = FOLDHASH(c->target_ip, c->seq_number);
+  MUTEX_TRY_LOCK(queuelock, remoteCacheContQueueMutex[hash], this_ethread());
+  if (!queuelock) {
+    // failed to acquire lock: no problem, retry later
+    c->timeout = eventProcessor.schedule_in(c, CACHE_RETRY_PERIOD, ET_CACHE_CONT_SM);
+  } else {
+    remoteCacheContQueue[hash].enqueue(c);
+    MUTEX_RELEASE(queuelock);
+    c->timeout = eventProcessor.schedule_in(c, cache_cluster_timeout, ET_CACHE_CONT_SM);
+  }
+
+  char *data;
+  int len;
+  int vers = CacheLookupMsg::protoToVersion(m->msg_proto_major);
+
+  if (vers == CacheLookupMsg::CACHE_LOOKUP_MESSAGE_VERSION) {
+    msg->seq_number = c->seq_number;
+    data = (char *) msg;
+    len = mlen;
+    if (hostname && hostname_len) {
+      memcpy(msg->moi.byte, hostname, hostname_len);
+    }
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"CacheLookupMsg bad msg version");
+  }
+
+  // send the message
+
+#ifdef CACHE_MSG_TRACE
+  log_cache_op_sndmsg(msg.seq_number, 0, "cache_lookup");
+#endif
+  clusterProcessor.invoke_remote(c->ch, CACHE_LOOKUP_CLUSTER_FUNCTION, data, len);
+  return &c->action;
+}
+
+
+////////////////////////////////////////////////////////////////////////////
+// cache_lookup_ClusterFunction()
+//   This function is invoked on a remote machine to do a remote lookup.
+//   It unmarshals the URL and does a local lookup, with its own
+//   continuation set to CacheContinuation::replyLookupEvent()
+////////////////////////////////////////////////////////////////////////////
+void
+cache_lookup_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  (void) len;
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  ////////////////////////////////////////////////////////
+  // Note: we are running on the ET_CLUSTER thread
+  ////////////////////////////////////////////////////////
+
+  CacheLookupMsg *msg = (CacheLookupMsg *) data;
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+
+  if (mh->GetMsgVersion() != CacheLookupMsg::CACHE_LOOKUP_MESSAGE_VERSION) {    ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"cache_lookup_ClusterFunction() bad msg version");
+  }
+
+  if (mh->NeedByteSwap())
+    msg->SwapBytes();
+
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CACHE_OUTSTANDING_STAT);
+
+  CacheContinuation *c = CacheContinuation::cacheContAllocator_alloc();
+  c->mutex = new_ProxyMutex();
+  MUTEX_TRY_LOCK(lock, c->mutex, this_ethread());
+  c->no_reply_message = (msg->seq_number == CACHE_NO_RESPONSE);
+  c->seq_number = msg->seq_number;
+  c->from = ch->machine;
+  c->url_md5 = msg->url_md5;
+  SET_CONTINUATION_HANDLER(c, (CacheContHandler)
+                           & CacheContinuation::replyLookupEvent);
+
+  CacheKey key(msg->url_md5);
+#ifdef CACHE_MSG_TRACE
+  log_cache_op_msg(msg->seq_number, 0, "cache_lookup");
+#endif
+
+  // Extract hostname data if passed.
+
+  char *hostname;
+  int hostname_len = len - op_to_sizeof_fixedlen_msg(CACHE_LOOKUP_OP);
+  hostname = (hostname_len ? (char *) msg->moi.byte : 0);
+
+  // Note: Hostname data invalid after return from lookup
+  Cache *call_cache = caches[msg->frag_type];
+  call_cache->lookup(c, &key, (CacheFragType) msg->frag_type, hostname, hostname_len);
+}
+
+/////////////////////////////////////////////////////////////////////////
+// replyLookupEvent()
+//   This function handles the result of a lookup on a remote machine.
+//   It packages up the result and sends it back to the calling machine.
+/////////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::replyLookupEvent(int event, void * /* d ATS_UNUSED */)
+{
+  ink_hrtime now;
+  now = ink_get_hrtime();
+  CLUSTER_SUM_DYN_STAT(CLUSTER_CACHE_CALLBACK_TIME_STAT, now - start_time);
+  LOG_EVENT_TIME(start_time, callback_time_dist, cache_callbacks);
+
+  int vers = CacheOpReplyMsg::protoToVersion(from->msg_proto_major);
+  if (vers == CacheOpReplyMsg::CACHE_OP_REPLY_MESSAGE_VERSION) {
+    CacheOpReplyMsg *msg;
+    int flen = CacheOpReplyMsg::sizeof_fixedlen_msg();
+    msg = (CacheOpReplyMsg *) ALLOCA_DOUBLE(flen);
+    msg->init();
+    CLUSTER_DECREMENT_DYN_STAT(CLUSTER_CACHE_OUTSTANDING_STAT);
+    int len = flen - sizeof(msg->token);
+
+    if (!no_reply_message) {
+      msg->seq_number = seq_number;
+      msg->result = event;
+#ifdef CACHE_MSG_TRACE
+      log_cache_op_sndmsg(seq_number, event, "cache_result");
+#endif
+      clusterProcessor.invoke_remote(ch, CACHE_OP_RESULT_CLUSTER_FUNCTION, msg, len);
+    }
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"replyLookupEvent() bad msg version");
+  }
+
+  // Free up everything
+
+  cacheContAllocator_free(this);
+  return EVENT_DONE;
+}
+
+int32_t CacheContinuation::getObjectSize(VConnection * vc, int opcode, CacheHTTPInfo * ret_ci)
+{
+  CacheHTTPInfo *ci = 0;
+  int64_t object_size = 0;
+
+  if ((opcode == CACHE_OPEN_READ_LONG)
+      || (opcode == CACHE_OPEN_READ_BUFFER_LONG)) {
+
+    ((CacheVC *) vc)->get_http_info(&ci);
+    if (ci) {
+      object_size = ci->object_size_get();
+
+    } else {
+      ci = 0;
+      object_size = 0;
+    }
+
+  } else {
+    object_size = ((CacheVC *)vc)->get_object_size();
+  }
+
+  if (ret_ci && !ret_ci->valid()) {
+    CacheHTTPInfo
+      new_ci;
+    new_ci.create();
+    if (ci) {
+      // Initialize copy
+      new_ci.copy(ci);
+    } else {
+      new_ci.object_size_set(object_size);
+    }
+    new_ci.m_alt->m_writeable = 1;
+    ret_ci->copy_shallow(&new_ci);
+  }
+  ink_release_assert(object_size);
+  return object_size;
+}
+
+//////////////////////////////////////////////////////////////////////////
+// insert_cache_callback_user()
+//  Insert write VC into global cache prior to performing user callback.
+//////////////////////////////////////////////////////////////////////////
+void
+CacheContinuation::insert_cache_callback_user(ClusterVConnection * vc, int res, void *e)
+{
+  if (GlobalOpenWriteVCcache->insert(&url_md5, vc)) {
+    // Inserted
+    callback_user(res, e);
+
+  } else {
+    // Unable to insert, try later
+    result = res;
+    callback_data = e;
+    callback_data_2 = (void *) vc;
+    SET_HANDLER((CacheContHandler) & CacheContinuation::insertCallbackEvent);
+    eventProcessor.schedule_imm(this, ET_CACHE_CONT_SM);
+  }
+}
+
+int
+CacheContinuation::insertCallbackEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (GlobalOpenWriteVCcache->insert(&url_md5, (ClusterVConnection *)
+                                     callback_data_2)) {
+    // Inserted
+    callback_user(result, callback_data);
+
+  } else {
+    // Unable to insert, try later
+    eventProcessor.schedule_imm(this, ET_CACHE_CONT_SM);
+  }
+  return EVENT_DONE;
+}
+
+///////////////////////////////////////////////////////////////////
+// callback_user()
+//  Invoke handleEvent on the given continuation (cont) with
+//    considerations for Action.
+///////////////////////////////////////////////////////////////////
+void
+CacheContinuation::callback_user(int res, void *e)
+{
+  EThread *et = this_ethread();
+
+  if (!is_ClusterThread(et)) {
+    MUTEX_TRY_LOCK(lock, mutex, et);
+    if (lock) {
+      if (!action.cancelled) {
+        action.continuation->handleEvent(res, e);
+      }
+      cacheContAllocator_free(this);
+
+    } else {
+      // Unable to acquire lock, retry later
+      defer_callback_result(res, e);
+    }
+  } else {
+    // Can not post completion on ET_CLUSTER thread.
+    defer_callback_result(res, e);
+  }
+}
+
+void
+CacheContinuation::defer_callback_result(int r, void *e)
+{
+  result = r;
+  callback_data = e;
+  SET_HANDLER((CacheContHandler) & CacheContinuation::callbackResultEvent);
+  eventProcessor.schedule_imm(this, ET_CACHE_CONT_SM);
+}
+
+int
+CacheContinuation::callbackResultEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (!action.cancelled)
+    action.continuation->handleEvent(result, callback_data);
+  cacheContAllocator_free(this);
+  return EVENT_DONE;
+}
+
+//-----------------------------------------------------------------
+// CacheContinuation static member functions
+//-----------------------------------------------------------------
+
+///////////////////////////////////////////////////////////////////////
+// cacheContAllocator_alloc()
+///////////////////////////////////////////////////////////////////////
+CacheContinuation *
+CacheContinuation::cacheContAllocator_alloc()
+{
+  return cacheContAllocator.alloc();
+}
+
+
+///////////////////////////////////////////////////////////////////////
+// cacheContAllocator_free()
+///////////////////////////////////////////////////////////////////////
+void
+CacheContinuation::cacheContAllocator_free(CacheContinuation * c)
+{
+  ink_assert(c->magicno == (int) MagicNo);
+//  ink_assert(!c->cache_op_ClusterFunction);
+  c->magicno = -1;
+#ifdef ENABLE_TIME_TRACE
+  c->start_time = 0;
+#endif
+  c->free();
+  c->mutex = NULL;
+  // FIX ME. ajitb 12/21/99
+  // Compiler bug in CC: WorkShop Compilers 5.0 98/12/15 C++ 5.0
+  // Does not accept assignment of ((Continuation *) NULL)
+  {
+    Continuation *temp = NULL;
+    c->action = temp;
+  }
+  c->tunnel_mutex = NULL;
+  cacheContAllocator.free(c);
+}
+
+/////////////////////////////////////////////////////////////////////////
+// callback_failure()
+//   Post error completion using a continuation.
+/////////////////////////////////////////////////////////////////////////
+Action *
+CacheContinuation::callback_failure(Action * a, int result, int err, CacheContinuation * this_cc)
+{
+  CacheContinuation *cc;
+  if (!this_cc) {
+    cc = cacheContAllocator_alloc();
+    cc->mutex = a->mutex;
+    cc->action = *a;
+
+  } else {
+    cc = this_cc;
+  }
+  cc->result = result;
+  cc->result_error = err;
+  SET_CONTINUATION_HANDLER(cc, (CacheContHandler)
+                           & CacheContinuation::callbackEvent);
+  eventProcessor.schedule_imm(cc, ET_CACHE_CONT_SM);
+  return &cc->action;
+}
+
+///////////////////////////////////////////////////////////////////////
+// callbackEvent()
+//  Invoke callback and deallocate continuation.
+///////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::callbackEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (!action.cancelled)
+    action.continuation->handleEvent(result, (void *)(intptr_t)result_error);
+  cacheContAllocator_free(this);
+  return EVENT_DONE;
+}
+
+//------------------------------------------------------------------
+// File static functions
+//------------------------------------------------------------------
+
+////////////////////////////////////////////////////////////////////////
+// find_cache_continuation()
+//   Find a currently pending cache continuation expecting a response.
+//   Requires taking the lock on the remoteCacheContQueueMutex first.
+////////////////////////////////////////////////////////////////////////
+static CacheContinuation *
+find_cache_continuation(unsigned int seq_number, unsigned int from_ip)
+{
+  unsigned int hash = FOLDHASH(from_ip, seq_number);
+  CacheContinuation *c = NULL;
+  CacheContinuation *lastc = NULL;
+  for (c = (CacheContinuation *) remoteCacheContQueue[hash].head; c; c = (CacheContinuation *) c->link.next) {
+    if (seq_number == c->seq_number && from_ip == c->target_ip) {
+      if (lastc) {
+        ink_release_assert(c->link.prev == lastc);
+      } else {
+        ink_release_assert(!c->link.prev);
+      }
+      break;
+    }
+
+    lastc = c;
+  }
+  return c;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// new_cache_sequence_number()
+//  Generate unique request sequence numbers
+/////////////////////////////////////////////////////////////////////////////
+static unsigned int
+new_cache_sequence_number()
+{
+  unsigned int res = 0;
+
+  do {
+    res = (unsigned int) ink_atomic_increment(&cluster_sequence_number, 1);
+  } while (!res);
+
+
+
+  return res;
+}
+
+/***************************************************************************/
+#ifdef OMIT
+/***************************************************************************/
+/////////////////////////////////////////////////////////////////////////////
+// forwardEvent()
+//   for migrate-on-demand, make a connection between the
+//   the node which has the object and the node which should have it.
+//
+//   prepared for either OPEN_READ (from current owner)
+//   or OPEN_WRITE (from new owner)
+/////////////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::forwardEvent(int event, VConnection * c)
+{
+  int ret = EVENT_CONT;
+  cluster_vc = 0;
+
+  cache_read = false;
+  switch (event) {
+  default:
+    ink_assert(!"bad case");
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+    ret = EVENT_DONE;
+    break;
+  case CACHE_EVENT_OPEN_WRITE:
+    cluster_vc = c;
+    break;
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    cache_read = true;
+    ret = EVENT_DONE;
+    break;
+  case CACHE_EVENT_OPEN_READ:
+    cache_read = true;
+    cluster_vc = c;
+    break;
+  }
+  SET_HANDLER((CacheContHandler) & CacheContinuation::forwardWaitEvent);
+  return ret;
+}
+
+////////////////////////////////////////////////////////////////////////
+// forwardWaitEvent()
+//   For migrate-on-demand, make a connection as above (forwardEvent)
+//   second either OPEN_READ or OPEN_WRITE,
+//   the data for the first is stored in (cluster_vc,cache_read)
+////////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::forwardWaitEvent(int event, VConnection * c)
+{
+  int ret = EVENT_CONT;
+  int res = CACHE_EVENT_OPEN_READ_FAILED;
+  void *res_data = NULL;
+  VConnection *vc = NULL;
+
+  switch (event) {
+  default:
+    ink_assert(!"bad case");
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    ret = EVENT_DONE;
+    break;
+  case CACHE_EVENT_OPEN_WRITE:
+  case CACHE_EVENT_OPEN_READ:
+    vc = c;
+    break;
+
+  }
+  VConnection *read_vc = (cache_read ? cluster_vc : vc);
+  VConnection *write_vc = (!cache_read ? cluster_vc : vc);
+
+  res = read_vc ? CACHE_EVENT_OPEN_READ : CACHE_EVENT_OPEN_READ_FAILED;
+  res_data = read_vc;
+
+  // if the read and write are sucessful, tunnel the read to the write
+  if (read_vc && write_vc) {
+    res_data = new VCTee(read_vc, write_vc, vio);
+    if (vio) {                  // CACHE_EVENT_OPEN_READ_VIO
+      res = event;
+      res_data = &((VCTee *) read_vc)->vio;
+    }
+  }
+  // if the read is sucessful return it to the user
+  //
+  c->handleEvent(res, res_data);
+  return ret;
+}
+
+/////////////////////////////////////////////////////////////////////
+// tunnelEvent()
+//   If the reply requires data, tunnel the data from the cache
+//   to the cluster.
+/////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::tunnelEvent(int event, VConnection * vc)
+{
+  int ret = EVENT_DONE;
+  int flen = CacheOpReplyMsg::sizeof_fixedlen_msg();    // include token
+  int len = 0;
+  bool read_buf = ((request_opcode == CACHE_OPEN_READ_BUFFER)
+                   || (request_opcode == CACHE_OPEN_READ_BUFFER_LONG));
+  ink_release_assert(!read_buf);
+
+  CacheOpReplyMsg rmsg;
+  CacheOpReplyMsg *msg = &rmsg;
+  msg->result = result;
+  msg->seq_number = seq_number;
+  msg->token = token;
+  int expect_reply = 1;
+
+  if (event == CLUSTER_EVENT_OPEN) {
+    if (cache_read) {
+      if (read_buf) {
+        ink_assert(have_all_data || (readahead_vio == &((CacheVConnection *) cluster_vc)->vio));
+        write_cluster_vc = (ClusterVConnection *) vc;
+
+        if (have_all_data) {
+          msg->token.clear();   // Tell sender no conn established
+        } else {
+          msg->token = token;   // Tell sender conn established
+          setupReadBufTunnel(cluster_vc, vc);
+        }
+
+      } else {
+        OneWayTunnel *pOWT = OneWayTunnel::OneWayTunnel_alloc();
+        pOWT->init(cluster_vc, vc, NULL, nbytes, this->mutex);
+        --expect_reply;
+      }
+
+      ////////////////////////////////////////////////////////
+      // cache_read requires CacheHTTPInfo in reply message.
+      ////////////////////////////////////////////////////////
+      int res;
+      CacheHTTPInfo *ci;
+
+      if (!cache_vc_info) {
+        // OPEN_READ case
+        (void) getObjectSize(cluster_vc, request_opcode, &cache_vc_info);
+      }
+      ci = cache_vc_info;
+
+      // Determine data length and allocate
+      len = ci->marshal_length();
+      CacheOpReplyMsg *reply = (CacheOpReplyMsg *) ALLOCA_DOUBLE(flen + len);
+
+      // Initialize reply message header
+      *reply = *msg;
+
+      // Marshal response data into reply message
+      res = ci->marshal((char *) reply->moi.byte, len);
+      ink_assert(res > 0);
+
+      // Make reply message the current message
+      msg = reply;
+
+    } else {
+      OneWayTunnel *pOWT = OneWayTunnelAllocator.alloc();
+      pOWT->init(vc, cluster_vc, NULL, nbytes, this->mutex);
+      --expect_reply;
+    }
+    ret = EVENT_CONT;
+  } else {
+    ink_release_assert(event == CLUSTER_EVENT_OPEN_FAILED);
+    msg->result = CACHE_EVENT_SET_FAILED(result);
+
+    if (read_buf) {
+      Debug("cluster_timeout", "unable to make cluster connection2");
+      initial_buf = 0;          // Do not send data
+      initial_bufsize = 0;
+
+      if (!have_all_data) {
+        // Shutdown cache connection and free MIOBuffer
+        MIOBuffer *mbuf = readahead_vio->buffer.writer();
+        cluster_vc->do_io(VIO::CLOSE);
+        free_MIOBuffer(mbuf);
+      }
+    } else {
+      Debug("cluster_timeout", "unable to make cluster connection2A");
+      cluster_vc->do_io(VIO::CLOSE);
+    }
+    len = 0 - (int) sizeof(msg->token);
+    --expect_reply;
+  }
+
+  int vers = CacheOpReplyMsg::protoToVersion(from->msg_proto_major);
+  if (vers == CacheOpReplyMsg::CACHE_OP_REPLY_MESSAGE_VERSION) {
+    if (read_buf) {
+      // Transmit reply message and object data in same cluster message
+      clusterProcessor.invoke_remote_data(from,
+                                          CACHE_OP_RESULT_CLUSTER_FUNCTION,
+                                          (void *) msg, (flen + len),
+                                          initial_buf, initial_bufsize,
+                                          cluster_vc_channel, &token,
+                                          &CacheContinuation::disposeOfDataBuffer, (void *) this, CLUSTER_OPT_STEAL);
+
+    } else {
+      clusterProcessor.invoke_remote(from, CACHE_OP_RESULT_CLUSTER_FUNCTION,
+                                     (void *) msg, (flen + len), CLUSTER_OPT_STEAL);
+    }
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"tunnelEvent() bad msg version");
+  }
+  if (expect_reply <= 0)
+    cacheContAllocator_free(this);
+  return ret;
+}
+
+/////////////////////////////////////////////////////////////////////
+// remoteConnectEvent()
+//   If this was an open, make a connection on this side before
+//   responding to the user.
+/////////////////////////////////////////////////////////////////////
+int
+CacheContinuation::remoteConnectEvent(int event, VConnection * cvc)
+{
+  ClusterVConnection *vc = (ClusterVConnection *) cvc;
+
+  if (event == CLUSTER_EVENT_OPEN) {
+    if (result == CACHE_EVENT_OPEN_READ) {
+      // Move CacheHTTPInfo reply data into VC
+      vc->alternate = this->ic_new_info;
+      this->ic_new_info.clear();
+    }
+    callback_user(result, vc);
+    return EVENT_CONT;
+  } else {
+    Debug("cluster_cache", "unable to make cluster connection");
+    callback_user(CACHE_EVENT_SET_FAILED(result), vc);
+    return EVENT_DONE;
+  }
+}
+
+/***************************************************************************/
+#endif // OMIT
+/***************************************************************************/
+
+// End of ClusterCache.cc
diff --git a/iocore/cluster/ClusterConfig.cc b/iocore/cluster/ClusterConfig.cc
new file mode 100644
index 00000000..332f10ef
--- /dev/null
+++ b/iocore/cluster/ClusterConfig.cc
@@ -0,0 +1,462 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterConfig.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+// updated from the cluster port configuration variable
+int cluster_port = DEFAULT_CLUSTER_PORT_NUMBER;
+
+ClusterAccept::ClusterAccept(int *port, int send_bufsize, int recv_bufsize)
+  : Continuation(0),
+    p_cluster_port(port),
+    socket_send_bufsize(send_bufsize),
+    socket_recv_bufsize(recv_bufsize),
+    current_cluster_port(-1),
+    accept_action(0),
+    periodic_event(0)
+{
+  mutex = new_ProxyMutex();
+  SET_HANDLER(&ClusterAccept::ClusterAcceptEvent);
+}
+
+ClusterAccept::~ClusterAccept()
+{
+  mutex = 0;
+}
+
+void
+ClusterAccept::Init()
+{
+  // Setup initial accept by simulating EVENT_INTERVAL
+  // where cluster accept port has changed.
+
+  current_cluster_port = ~*p_cluster_port;
+  ClusterAcceptEvent(EVENT_INTERVAL, 0);
+
+  // Setup periodic event to handle changing cluster accept port.
+  periodic_event = eventProcessor.schedule_every(this, HRTIME_SECONDS(60));
+}
+
+void
+ClusterAccept::ShutdownDelete()
+{
+  MUTEX_TRY_LOCK(lock, this->mutex, this_ethread());
+  if (!lock) {
+    eventProcessor.schedule_imm(this, ET_CALL);
+    return;
+  }
+  // Kill all events and delete.
+  if (accept_action) {
+    accept_action->cancel();
+    accept_action = 0;
+  }
+  if (periodic_event) {
+    periodic_event->cancel();
+    periodic_event = 0;
+  }
+  delete this;
+}
+
+int
+ClusterAccept::ClusterAcceptEvent(int event, void *data)
+{
+  switch (event) {
+  case EVENT_IMMEDIATE:
+    {
+      ShutdownDelete();
+      return EVENT_DONE;
+    }
+  case EVENT_INTERVAL:
+    {
+      int cluster_port = *p_cluster_port;
+
+      if (cluster_port != current_cluster_port) {
+        // Configuration changed cluster port, redo accept on new port.
+        if (accept_action) {
+          accept_action->cancel();
+          accept_action = 0;
+        }
+
+        NetProcessor::AcceptOptions opt;
+        opt.recv_bufsize = socket_recv_bufsize;
+        opt.send_bufsize = socket_send_bufsize;
+        opt.etype = ET_CLUSTER;
+        opt.local_port = cluster_port;
+        opt.ip_family = AF_INET;
+        opt.localhost_only = false;
+
+        accept_action = netProcessor.main_accept(this, NO_FD, opt);
+        if (!accept_action) {
+          Warning("Unable to accept cluster connections on port: %d", cluster_port);
+        } else {
+          current_cluster_port = cluster_port;
+        }
+      }
+      return EVENT_CONT;
+    }
+  case NET_EVENT_ACCEPT:
+    {
+      ClusterAcceptMachine((NetVConnection *) data);
+      return EVENT_DONE;
+    }
+  default:
+    {
+      Warning("ClusterAcceptEvent: received unknown event %d", event);
+      return EVENT_DONE;
+    }
+  }                             // End of switch
+}
+
+int
+ClusterAccept::ClusterAcceptMachine(NetVConnection * NetVC)
+{
+  // Validate remote IP address.
+  unsigned int remote_ip = NetVC->get_remote_ip();
+  MachineList *mc = the_cluster_machines_config();
+
+  if (mc && !mc->find(remote_ip)) {
+    Note("Illegal cluster connection from %u.%u.%u.%u", DOT_SEPARATED(remote_ip));
+    NetVC->do_io(VIO::CLOSE);
+    return 0;
+  }
+
+  Debug(CL_NOTE, "Accepting machine %u.%u.%u.%u", DOT_SEPARATED(remote_ip));
+  ClusterHandler *ch = new ClusterHandler;
+  ch->machine = new ClusterMachine(NULL, remote_ip);
+  ch->ip = remote_ip;
+  ch->net_vc = NetVC;
+  eventProcessor.schedule_imm_signal(ch, ET_CLUSTER);
+  return 1;
+}
+
+static void
+make_cluster_connections(MachineList * l)
+{
+  //
+  // Connect to all new machines.
+  //
+  uint32_t ip = this_cluster_machine()->ip;
+  int num_connections = this_cluster_machine()->num_connections;
+
+  if (l) {
+    for (int i = 0; i < l->n; i++) {
+#ifdef LOCAL_CLUSTER_TEST_MODE
+      if (ip < l->machine[i].ip || (ip == l->machine[i].ip && (cluster_port < l->machine[i].port))) {
+#else
+      if (ip < l->machine[i].ip) {
+#endif
+        for (int j = 0; j < num_connections; j++) {
+          clusterProcessor.connect(l->machine[i].ip, l->machine[i].port, j);
+        }
+      }
+    }
+  }
+}
+
+int
+machine_config_change(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */, RecData data,
+                      void *cookie)
+{
+  // Handle changes to the cluster.config or machines.config
+  // file.  cluster.config is the list of machines in the
+  // cluster proper ( in the cluster hash table ).  machines.config
+  // is the list of machines which communicate with the cluster.
+  // This may include front-end load redirectors, machines going
+  // up or coming down etc.
+  //
+  char *filename = (char *) data.rec_string;
+  MachineList *l = read_MachineList(filename);
+  MachineList *old = NULL;
+#ifdef USE_SEPARATE_MACHINE_CONFIG
+  switch ((int) cookie) {
+  case MACHINE_CONFIG:
+    old = machines_config;
+    machines_config = l;
+    break;
+  case CLUSTER_CONFIG:
+    old = cluster_config;
+    cluster_config = l;
+    make_cluster_connections(l);
+    break;
+  }
+#else
+  (void) cookie;
+  old = cluster_config;
+  machines_config = l;
+  cluster_config = l;
+  make_cluster_connections(l);
+#endif
+  if (old)
+    free_MachineList(old);
+  return 0;
+}
+
+void
+do_machine_config_change(void *d, const char *s)
+{
+  char cluster_config_filename[PATH_NAME_MAX] = "";
+  REC_ReadConfigString(cluster_config_filename, s, sizeof(cluster_config_filename) - 1);
+  RecData data;
+  data.rec_string = cluster_config_filename;
+  machine_config_change(s, RECD_STRING, data, d);
+}
+
+/*************************************************************************/
+// ClusterConfiguration member functions (Public Class)
+/*************************************************************************/
+ClusterConfiguration::ClusterConfiguration():n_machines(0), changed(0)
+{
+  memset(machines, 0, sizeof(machines));
+  memset(hash_table, 0, sizeof(hash_table));
+}
+
+/*************************************************************************/
+// ConfigurationContinuation member functions (Internal Class)
+/*************************************************************************/
+struct ConfigurationContinuation;
+typedef int (ConfigurationContinuation::*CfgContHandler) (int, void *);
+struct ConfigurationContinuation: public Continuation
+{
+  ClusterConfiguration *c;
+  ClusterConfiguration *prev;
+
+  int
+  zombieEvent(int /* event ATS_UNUSED */, Event * e)
+  {
+    prev->link.next = NULL;     // remove that next pointer
+    SET_HANDLER((CfgContHandler) & ConfigurationContinuation::dieEvent);
+    e->schedule_in(CLUSTER_CONFIGURATION_ZOMBIE);
+    return EVENT_CONT;
+  }
+
+  int
+  dieEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    delete c;
+    delete this;
+    return EVENT_DONE;
+  }
+
+  ConfigurationContinuation(ClusterConfiguration * cc, ClusterConfiguration * aprev)
+    : Continuation(NULL), c(cc), prev(aprev) {
+    mutex = new_ProxyMutex();
+    SET_HANDLER((CfgContHandler) & ConfigurationContinuation::zombieEvent);
+  }
+};
+
+static void
+free_configuration(ClusterConfiguration * c, ClusterConfiguration * prev)
+{
+  //
+  // Delete the configuration after a time.
+  // The problem is that configurations change infrequently, and
+  // are used in different threads, so reference counts are
+  // relatively difficult and expensive.  The solution I have
+  // chosen is to simply delete the object after some (very long)
+  // time after it has ceased to be accessible.
+  //
+  eventProcessor.schedule_in(new ConfigurationContinuation(c, prev), CLUSTER_CONFIGURATION_TIMEOUT, ET_CALL);
+}
+
+ClusterConfiguration *
+configuration_add_machine(ClusterConfiguration * c, ClusterMachine * m)
+{
+  // Build a new cluster configuration with the new machine.
+  // Machines are stored in ip sorted order.
+  //
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  int i = 0;
+  ClusterConfiguration *cc = new ClusterConfiguration(*c);
+
+  // Find the place to insert this new machine
+  //
+  for (i = 0; i < cc->n_machines; i++) {
+    if (cc->machines[i]->ip > m->ip)
+      break;
+  }
+
+  // Move the other machines out of the way
+  //
+  for (int j = cc->n_machines - 1; j >= i; j--)
+    cc->machines[j + 1] = cc->machines[j];
+
+  // Insert it
+  //
+  cc->machines[i] = m;
+  cc->n_machines++;
+
+  cc->link.next = c;
+  cc->changed = ink_get_hrtime();
+  ink_assert(cc->n_machines < CLUSTER_MAX_MACHINES);
+
+  build_cluster_hash_table(cc);
+  INK_MEMORY_BARRIER;           // commit writes before freeing old hash table
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONFIGURATION_CHANGES_STAT);
+
+  free_configuration(c, cc);
+  return cc;
+}
+
+ClusterConfiguration *
+configuration_remove_machine(ClusterConfiguration * c, ClusterMachine * m)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  //
+  // Build a new cluster configuration without a machine
+  //
+  ClusterConfiguration *cc = new ClusterConfiguration(*c);
+  //
+  // remove m and move others down
+  //
+  for (int i = 0; i < cc->n_machines - 1; i++)
+    if (m == cc->machines[i])
+      m = cc->machines[i] = cc->machines[i + 1];
+  cc->n_machines--;
+
+  ink_assert(cc->n_machines > 0);
+
+  cc->link.next = c;
+  cc->changed = ink_get_hrtime();
+
+  build_cluster_hash_table(cc);
+  INK_MEMORY_BARRIER;           // commit writes before freeing old hash table
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONFIGURATION_CHANGES_STAT);
+
+  free_configuration(c, cc);
+  return cc;
+}
+
+//
+// cluster_machine_at_depth()
+//   Find a machine at a particular depth into the past.
+//   We don't want to probe the current machine or machines
+//   we have probed before, so we store a list of "past_probes".
+//   If probe_depth and past_probes are NULL we only want the
+//   owner (machine now as opposed to in the past).
+//
+ClusterMachine *
+cluster_machine_at_depth(unsigned int hash, int *pprobe_depth, ClusterMachine ** past_probes)
+{
+#ifdef CLUSTER_TOMCAT
+  if (!cache_clustering_enabled)
+    return NULL;
+#endif
+  ClusterConfiguration *
+    cc = this_cluster()->current_configuration();
+  ClusterConfiguration *
+    next_cc = cc;
+  ink_hrtime now = ink_get_hrtime();
+  int fake_probe_depth = 0;
+  int &probe_depth = pprobe_depth ? (*pprobe_depth) : fake_probe_depth;
+  int tprobe_depth = probe_depth;
+
+#ifdef CLUSTER_TEST
+  if (cc->n_machines > 1) {
+    for (int i = 0; i < cc->n_machines; ++i) {
+      if (cc->machines[i] != this_cluster_machine()) {
+        return cc->machines[i];
+      }
+    }
+  }
+#endif // CLUSTER_TEST
+
+  while (1) {
+    // If we are out of our depth, fail
+    //
+    if (probe_depth > CONFIGURATION_HISTORY_PROBE_DEPTH)
+      break;
+
+    // If there is no configuration, fail
+    //
+    if (!cc || !next_cc)
+      break;
+
+    cc = next_cc;
+    next_cc = next_cc->link.next;
+
+    // Find the correct configuration
+    //
+    if (tprobe_depth) {
+      if (cc->changed > (now + CLUSTER_CONFIGURATION_TIMEOUT))
+        break;
+      tprobe_depth--;
+      continue;
+    }
+
+    ClusterMachine *
+      m = cc->machine_hash(hash);
+
+    // If it is not this machine, or a machine we have done before
+    // and one that is still up, try again
+    //
+    bool
+      ok = !(m == this_cluster_machine() || (past_probes && machine_in_vector(m, past_probes, probe_depth)) || m->dead);
+
+    // Store the all but the last probe, so that we never return
+    // the same machine
+    //
+    if (past_probes && probe_depth < CONFIGURATION_HISTORY_PROBE_DEPTH)
+      past_probes[probe_depth] = m;
+    probe_depth++;
+
+    if (!ok) {
+      if (!pprobe_depth)
+        break;                  // don't go down if we don't have a depth
+      continue;
+    }
+
+    return (m != this_cluster_machine()) ? m : NULL;
+  }
+  return NULL;
+}
+
+//
+// initialize_thread_for_cluster()
+//   This is not required since we have a separate handler
+//   for each machine-machine pair, the pointers to which are
+//   stored in the ClusterMachine structures
+//
+void
+initialize_thread_for_cluster(EThread * e)
+{
+  (void) e;
+}
+
+/*************************************************************************/
+// Cluster member functions (Public Class)
+/*************************************************************************/
+Cluster::Cluster()
+{
+}
+
+// End of ClusterConfig.cc
diff --git a/iocore/cluster/ClusterHandler.cc b/iocore/cluster/ClusterHandler.cc
new file mode 100644
index 00000000..e688e5bd
--- /dev/null
+++ b/iocore/cluster/ClusterHandler.cc
@@ -0,0 +1,3102 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterHandler.cc
+****************************************************************************/
+
+#define DEFINE_CLUSTER_FUNCTIONS
+#include "P_Cluster.h"
+
+/*************************************************************************/
+// Global Data
+/*************************************************************************/
+// Initialize clusterFunction[] size
+unsigned SIZE_clusterFunction = countof(clusterFunction);
+
+// hook for testing
+ClusterFunction *ptest_ClusterFunction = NULL;
+
+// global bit buckets for closed channels
+static char channel_dummy_input[DEFAULT_MAX_BUFFER_SIZE];
+char channel_dummy_output[DEFAULT_MAX_BUFFER_SIZE];
+
+// outgoing control continuations
+ClassAllocator<OutgoingControl> outControlAllocator("outControlAllocator");
+
+// incoming control descriptors
+ClassAllocator<IncomingControl> inControlAllocator("inControlAllocator");
+
+static int dump_msgs = 0;
+
+/////////////////////////////////////////
+// VERIFY_PETERS_DATA support code
+/////////////////////////////////////////
+#ifdef VERIFY_PETERS_DATA
+#define DO_VERIFY_PETERS_DATA(_p,_l) verify_peters_data(_p,_l)
+#else
+#define DO_VERIFY_PETERS_DATA(_p,_l)
+#endif
+
+void
+verify_peters_data(char *ap, int l)
+{
+  unsigned char *p = (unsigned char *) ap;
+  for (int i = 0; i < l - 1; i++) {
+    unsigned char x1 = p[i];
+    unsigned char x2 = p[i + 1];
+    x1 += 1;
+    if (x1 != x2) {
+      fprintf(stderr, "verify peter's data failed at %d\n", i);
+      break;
+    }
+  }
+}
+
+/*************************************************************************/
+// ClusterHandler member functions (Internal Class)
+/*************************************************************************/
+//
+// Overview:
+//  In a steady state cluster environment, all cluster nodes have an
+//  established TCP socket connection to each node in the cluster.
+//  An instance of the class ClusterHandler exists for each known node
+//  in the cluster.  All specific node-node data/state is encapsulated
+//  by this class.
+//
+//  ClusterHandler::mainClusterEvent() is the key periodic event which
+//  drives the read/write action over the node-node socket connection.
+//  A high level overview of ClusterHandler::mainClusterEvent() action is
+//  as follows:
+//      1) Perform cluster interconnect load monitoring functions.
+//         If interconnect is overloaded, convert all remote cluster
+//         operations to proxy only.
+//      2) Process delayed reads.  Delayed read refers to data associated
+//         with a VC (Virtual Connection) which resides in an intermediate
+//         buffer and is unknown to the VC.  This is required in cases
+//         where we are unable to acquire the VC mutex at the time of the
+//         read from the node-node socket.  Delayed read processing
+//         consists of acquiring the VC mutex and moving the data into the
+//         VC and posting read completion.
+//      3) Process pending read data on the node-node TCP socket.  In the
+//         typical case, read processing is performed using three read
+//         operations.  The actions are as follows:
+//              a) read the fixed size message header
+//                 (struct ClusterMsgHeader) consisting of the
+//                 number of data descriptors and the size of the inline
+//                 control messages following the data descriptors.
+//              b) Setup buffer for data descriptors and inline control
+//                 messages and issue read.
+//              c) Setup read buffers and acquire applicable locks for
+//                 VC/Control data described by data descriptors and issue
+//                 read.
+//              d) Perform read completion actions on control and VC data.
+//              e) Free VC locks
+//      4) Process write bank data.  Write bank data is outstanding data
+//         which we were unable to push out in the last write over the
+//         node-node TCP socket.  Write bank data must be successfully pushed
+//         before performing any additional write processing.
+//      5) Build a write message consisting of the following data:
+//          1) Write data for a Virtual Connection in the current write data
+//             bucket (write_vcs)
+//          2) Virtual Connection free space for VCs in the current read
+//             data bucket (read_vcs)
+//          3) Control message data (outgoing_control)
+//      6) Push write data
+//
+//  Thread stealing refers to executing the control message processing
+//  portion of mainClusterEvent()  by a thread not associated with the
+//  periodic event.  This a mechanism to avoid the latency on control
+//  messages by allowing them to be pushed immediately.
+//
+/*************************************************************************/
+
+ClusterHandler::ClusterHandler()
+  : net_vc(0),
+    thread(0),
+    ip(0),
+    port(0),
+    hostname(NULL),
+    machine(NULL),
+    ifd(-1),
+    id(-1),
+    dead(true),
+    downing(false),
+    active(false),
+    on_stolen_thread(false),
+    n_channels(0),
+    channels(NULL),
+    channel_data(NULL),
+    connector(false),
+    cluster_connect_state(ClusterHandler::CLCON_INITIAL),
+    needByteSwap(false),
+    configLookupFails(0),
+    cluster_periodic_event(0),
+    read(this, true),
+    write(this, false),
+    current_time(0),
+    last(0),
+    last_report(0),
+    n_since_last_report(0),
+    last_cluster_op_enable(0),
+    last_trace_dump(0),
+    clm(0),
+    disable_remote_cluster_ops(0),
+    pw_write_descriptors_built(0),
+    pw_freespace_descriptors_built(0),
+    pw_controldata_descriptors_built(0), pw_time_expired(0), started_on_stolen_thread(false), control_message_write(false)
+#ifdef CLUSTER_STATS
+  ,
+    _vc_writes(0),
+    _vc_write_bytes(0),
+    _control_write_bytes(0),
+    _dw_missed_lock(0),
+    _dw_not_enabled(0),
+    _dw_wait_remote_fill(0),
+    _dw_no_active_vio(0),
+    _dw_not_enabled_or_no_write(0),
+    _dw_set_data_pending(0),
+    _dw_no_free_space(0),
+    _fw_missed_lock(0),
+    _fw_not_enabled(0),
+    _fw_wait_remote_fill(0),
+    _fw_no_active_vio(0),
+    _fw_not_enabled_or_no_read(0),
+    _process_read_calls(0),
+    _n_read_start(0),
+    _n_read_header(0),
+    _n_read_await_header(0),
+    _n_read_setup_descriptor(0),
+    _n_read_descriptor(0),
+    _n_read_await_descriptor(0),
+    _n_read_setup_data(0),
+    _n_read_data(0),
+    _n_read_await_data(0),
+    _n_read_post_complete(0),
+    _n_read_complete(0),
+    _process_write_calls(0),
+    _n_write_start(0),
+    _n_write_setup(0), _n_write_initiate(0), _n_write_await_completion(0), _n_write_post_complete(0), _n_write_complete(0)
+#endif
+{
+#ifdef MSG_TRACE
+  t_fd = fopen("msgtrace.log", "w");
+#endif
+  // we need to lead by at least 1
+
+  min_priority = 1;
+  SET_HANDLER((ClusterContHandler) & ClusterHandler::startClusterEvent);
+
+  mutex = new_ProxyMutex();
+  OutgoingControl oc;
+  int n;
+  for (n = 0; n < CLUSTER_CMSG_QUEUES; ++n) {
+    ink_atomiclist_init(&outgoing_control_al[n], "OutGoingControlQueue", (char *) &oc.link.next - (char *) &oc);
+  }
+
+  IncomingControl ic;
+  ink_atomiclist_init(&external_incoming_control,
+                      "ExternalIncomingControlQueue", (char *) &ic.link.next - (char *) &ic);
+
+  ClusterVConnection ivc;
+  ink_atomiclist_init(&external_incoming_open_local,
+                      "ExternalIncomingOpenLocalQueue", (char *) &ivc.link.next - (char *) &ivc);
+  ink_atomiclist_init(&read_vcs_ready, "ReadVcReadyQueue", offsetof(ClusterVConnection, ready_alink.next));
+  ink_atomiclist_init(&write_vcs_ready, "WriteVcReadyQueue", offsetof(ClusterVConnection, ready_alink.next));
+  memset((char *) &callout_cont[0], 0, sizeof(callout_cont));
+  memset((char *) &callout_events[0], 0, sizeof(callout_events));
+}
+
+ClusterHandler::~ClusterHandler()
+{
+  bool free_m = false;
+  if (net_vc) {
+    net_vc->do_io(VIO::CLOSE);
+    net_vc = 0;
+  }
+  if (machine) {
+    MUTEX_TAKE_LOCK(the_cluster_config_mutex, this_ethread());
+    if (++machine->free_connections >= machine->num_connections)
+      free_m = true;
+    MUTEX_UNTAKE_LOCK(the_cluster_config_mutex, this_ethread());
+    if (free_m)
+      free_ClusterMachine(machine);
+  }
+  machine = NULL;
+  ats_free(hostname);
+  hostname = NULL;
+  ats_free(channels);
+  channels = NULL;
+  if (channel_data) {
+    for (int i = 0; i < n_channels; ++i) {
+      if (channel_data[i]) {
+        ats_free(channel_data[i]);
+        channel_data[i] = 0;
+      }
+    }
+    ats_free(channel_data);
+    channel_data = NULL;
+  }
+  if (read_vcs)
+    delete[]read_vcs;
+  read_vcs = NULL;
+
+  if (write_vcs)
+    delete[]write_vcs;
+  write_vcs = NULL;
+
+  if (clm) {
+    delete clm;
+    clm = NULL;
+  }
+#ifdef CLUSTER_STATS
+  message_blk = 0;
+#endif
+}
+
+void
+ClusterHandler::close_ClusterVConnection(ClusterVConnection * vc)
+{
+  //
+  // Close down a ClusterVConnection
+  //
+  if (vc->inactivity_timeout)
+    vc->inactivity_timeout->cancel(vc);
+  if (vc->active_timeout)
+    vc->active_timeout->cancel(vc);
+  if (vc->read.queue)
+    ClusterVC_remove_read(vc);
+  if (vc->write.queue)
+    ClusterVC_remove_write(vc);
+  vc->read.vio.mutex = NULL;
+  vc->write.vio.mutex = NULL;
+
+  ink_assert(!vc->read_locked);
+  ink_assert(!vc->write_locked);
+  int channel = vc->channel;
+  free_channel(vc);
+
+  if (vc->byte_bank_q.head) {
+    delayed_reads.remove(vc);
+
+    // Deallocate byte bank descriptors
+    ByteBankDescriptor *d;
+    while ((d = vc->byte_bank_q.dequeue())) {
+      ByteBankDescriptor::ByteBankDescriptor_free(d);
+    }
+  }
+  vc->read_block = 0;
+
+  ink_assert(!vc->write_list);
+  ink_assert(!vc->write_list_tail);
+  ink_assert(!vc->write_list_bytes);
+  ink_assert(!vc->write_bytes_in_transit);
+
+  if (((!vc->remote_closed && !vc->have_all_data) || (vc->remote_closed == FORCE_CLOSE_ON_OPEN_CHANNEL)) && vc->ch) {
+
+    CloseMessage msg;
+    int vers = CloseMessage::protoToVersion(vc->ch->machine->msg_proto_major);
+    void *data;
+    int len;
+
+    if (vers == CloseMessage::CLOSE_CHAN_MESSAGE_VERSION) {
+      msg.channel = channel;
+      msg.status = (vc->remote_closed == FORCE_CLOSE_ON_OPEN_CHANNEL) ? FORCE_CLOSE_ON_OPEN_CHANNEL : vc->closed;
+      msg.lerrno = vc->lerrno;
+      msg.sequence_number = vc->token.sequence_number;
+      data = (void *) &msg;
+      len = sizeof(CloseMessage);
+
+    } else {
+      //////////////////////////////////////////////////////////////
+      // Create the specified down rev version of this message
+      //////////////////////////////////////////////////////////////
+      ink_release_assert(!"close_ClusterVConnection() bad msg version");
+    }
+    clusterProcessor.invoke_remote(vc->ch, CLOSE_CHANNEL_CLUSTER_FUNCTION, data, len);
+  }
+  ink_hrtime now = ink_get_hrtime();
+  CLUSTER_DECREMENT_DYN_STAT(CLUSTER_CONNECTIONS_OPEN_STAT);
+  CLUSTER_SUM_DYN_STAT(CLUSTER_CON_TOTAL_TIME_STAT, now - vc->start_time);
+  if (!local_channel(channel)) {
+    CLUSTER_SUM_DYN_STAT(CLUSTER_REMOTE_CONNECTION_TIME_STAT, now - vc->start_time);
+  } else {
+    CLUSTER_SUM_DYN_STAT(CLUSTER_LOCAL_CONNECTION_TIME_STAT, now - vc->start_time);
+  }
+  clusterVCAllocator_free(vc);
+}
+
+inline bool
+ClusterHandler::vc_ok_write(ClusterVConnection * vc)
+{
+  return (((vc->closed > 0)
+           && (vc->write_list || vc->write_bytes_in_transit)) ||
+          (!vc->closed && vc->write.enabled && vc->write.vio.op == VIO::WRITE && vc->write.vio.buffer.writer()));
+}
+
+inline bool
+ClusterHandler::vc_ok_read(ClusterVConnection * vc)
+{
+  return (!vc->closed && vc->read.vio.op == VIO::READ && vc->read.vio.buffer.writer());
+}
+
+void
+ClusterHandler::close_free_lock(ClusterVConnection * vc, ClusterVConnState * s)
+{
+  Ptr<ProxyMutex> m(s->vio.mutex);
+  if (s == &vc->read) {
+    if ((ProxyMutex *) vc->read_locked)
+      MUTEX_UNTAKE_LOCK(vc->read_locked, thread);
+    vc->read_locked = NULL;
+  } else {
+    if ((ProxyMutex *) vc->write_locked)
+      MUTEX_UNTAKE_LOCK(vc->write_locked, thread);
+    vc->write_locked = NULL;
+  }
+  close_ClusterVConnection(vc);
+}
+
+bool ClusterHandler::build_data_vector(char *d, int len, bool read_flag)
+{
+  // Internal interface to general network i/o facility allowing
+  // single vector read/write to static data buffer.
+
+  ClusterState & s = (read_flag ? read : write);
+  ink_assert(d);
+  ink_assert(len);
+  ink_assert(s.iov);
+
+  s.msg.count = 1;
+  s.iov[0].iov_base = 0;
+  s.iov[0].iov_len = len;
+  s.block[0] = new_IOBufferBlock();
+  s.block[0]->set(new_constant_IOBufferData(d, len));
+
+  if (read_flag) {
+    // Make block write_avail == len
+    s.block[0]->_buf_end = s.block[0]->end() + len;
+  } else {
+    // Make block read_avail == len
+    s.block[0]->fill(len);
+  }
+
+  s.to_do = len;
+  s.did = 0;
+  s.n_iov = 1;
+
+  return true;
+}
+
+bool ClusterHandler::build_initial_vector(bool read_flag)
+{
+  //
+  // Build initial read/write struct iovec and corresponding IOBufferData
+  // structures from the given struct descriptor(s).
+  // Required vector adjustments for partial i/o conditions is handled
+  // by adjust_vector().
+  //
+  ///////////////////////////////////////////////////////////////////
+  // Descriptor to struct iovec layout
+  ///////////////////////////////////////////////////////////////////
+  // Write iovec[] layout
+  //    iov[0] ----> struct ClusterMsgHeader
+  //    iov[1] ----> struct descriptor [count]
+  //                 char short_control_messages[control_bytes]
+  //
+  //    iov[2] ----> struct descriptor data (element #1)
+  //    ......
+  //    iov[2+count] ----> struct descriptor data (element #count)
+  //
+  ///////////////////////////////////////////////////////////////////
+  // Read iovec[] layout phase #1 read
+  //    iov[0] ----> struct ClusterMsgHeader
+  ///////////////////////////////////////////////////////////////////
+  // Read iovec[] layout phase #2 read
+  //    iov[0] ----> struct descriptor[count]
+  //                 char short_control_messages[control_bytes]
+  ///////////////////////////////////////////////////////////////////
+  // Read iovec[] layout phase #3 read
+  //    iov[0] ----> struct descriptor data (element #1)
+  //    ......
+  //    iov[count-1] ----> struct descriptor data (element #count)
+  ///////////////////////////////////////////////////////////////////
+  int i, n;
+  // This isn't used.
+  // MIOBuffer      *w;
+
+  ink_hrtime now = ink_get_hrtime();
+  ClusterState & s = (read_flag ? read : write);
+  OutgoingControl *oc = s.msg.outgoing_control.head;
+  IncomingControl *ic = incoming_control.head;
+  int new_n_iov = 0;
+  int to_do = 0;
+  int len;
+
+  ink_assert(s.iov);
+
+  if (!read_flag) {
+    //////////////////////////////////////////////////////////////////////
+    // Setup vector for write of header, descriptors and control data
+    //////////////////////////////////////////////////////////////////////
+    len = sizeof(ClusterMsgHeader) + (s.msg.count * sizeof(Descriptor)) + s.msg.control_bytes;
+    s.iov[new_n_iov].iov_base = 0;
+    s.iov[new_n_iov].iov_len = len;
+    s.block[new_n_iov] = s.msg.get_block_header();
+
+    // Make read_avail == len
+    s.block[new_n_iov]->fill(len);
+
+    to_do += len;
+    ++new_n_iov;
+
+  } else {
+    if (s.msg.state == 0) {
+      ////////////////////////////////////
+      // Setup vector for read of header
+      ////////////////////////////////////
+      len = sizeof(ClusterMsgHeader);
+      s.iov[new_n_iov].iov_base = 0;
+      s.iov[new_n_iov].iov_len = len;
+      s.block[new_n_iov] = s.msg.get_block_header();
+
+      // Make write_avail == len
+      s.block[new_n_iov]->_buf_end = s.block[new_n_iov]->end() + len;
+
+      to_do += len;
+      ++new_n_iov;
+
+    } else if (s.msg.state == 1) {
+      /////////////////////////////////////////////////////////
+      // Setup vector for read of Descriptors+control data
+      /////////////////////////////////////////////////////////
+      len = (s.msg.count * sizeof(Descriptor)) + s.msg.control_bytes;
+      s.iov[new_n_iov].iov_base = 0;
+      s.iov[new_n_iov].iov_len = len;
+      s.block[new_n_iov] = s.msg.get_block_descriptor();
+
+      // Make write_avail == len
+      s.block[new_n_iov]->_buf_end = s.block[new_n_iov]->end() + len;
+
+      to_do += s.iov[new_n_iov].iov_len;
+      ++new_n_iov;
+    }
+  }
+
+  ////////////////////////////////////////////////////////////
+  // Build vector for data section of the cluster message.
+  // For read, we only do this if we are in data phase
+  // of the read (msg.state == 2)
+  //////////////////////////////////////////////////////////////
+  //  Note: We are assuming that free space descriptors follow
+  //        the data descriptors.
+  //////////////////////////////////////////////////////////////
+  for (i = 0; i<(read_flag ? ((s.msg.state>= 2) ? s.msg.count : 0)
+                   : s.msg.count); i++) {
+    if (s.msg.descriptor[i].type == CLUSTER_SEND_DATA) {
+      ///////////////////////////////////
+      // Control channel data
+      ///////////////////////////////////
+      if (s.msg.descriptor[i].channel == CLUSTER_CONTROL_CHANNEL) {
+        if (read_flag) {
+          ///////////////////////
+          // Incoming Control
+          ///////////////////////
+          if (!ic) {
+            ic = IncomingControl::alloc();
+            ic->recognized_time = now;
+            CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CTRL_MSGS_RECVD_STAT);
+            ic->len = s.msg.descriptor[i].length;
+            ic->alloc_data();
+            if (!ic->fast_data()) {
+              CLUSTER_INCREMENT_DYN_STAT(CLUSTER_SLOW_CTRL_MSGS_RECVD_STAT);
+            }
+            // Mark message data as invalid
+            *((uint32_t *) ic->data) = UNDEFINED_CLUSTER_FUNCTION;
+            incoming_control.enqueue(ic);
+          }
+          s.iov[new_n_iov].iov_base = 0;
+          s.iov[new_n_iov].iov_len = ic->len;
+          s.block[new_n_iov] = ic->get_block();
+          to_do += s.iov[new_n_iov].iov_len;
+          ++new_n_iov;
+          ic = (IncomingControl *) ic->link.next;
+        } else {
+          ///////////////////////
+          // Outgoing Control
+          ///////////////////////
+          ink_assert(oc);
+          s.iov[new_n_iov].iov_base = 0;
+          s.iov[new_n_iov].iov_len = oc->len;
+          s.block[new_n_iov] = oc->get_block();
+          to_do += s.iov[new_n_iov].iov_len;
+          ++new_n_iov;
+          oc = (OutgoingControl *) oc->link.next;
+        }
+      } else {
+        ///////////////////////////////
+        // User channel data
+        ///////////////////////////////
+        ClusterVConnection *
+          vc = channels[s.msg.descriptor[i].channel];
+
+        if (VALID_CHANNEL(vc) &&
+            (s.msg.descriptor[i].sequence_number) == CLUSTER_SEQUENCE_NUMBER(vc->token.sequence_number)) {
+          if (read_flag) {
+            ink_release_assert(!vc->initial_data_bytes);
+            /////////////////////////////////////
+            // Try to get the read VIO mutex
+            /////////////////////////////////////
+            ink_release_assert(!(ProxyMutex *) vc->read_locked);
+#ifdef CLUSTER_TOMCAT
+            if (!vc->read.vio.mutex ||
+                !MUTEX_TAKE_TRY_LOCK_FOR_SPIN(vc->read.vio.mutex, thread, vc->read.vio._cont, READ_LOCK_SPIN_COUNT))
+#else
+            if (!MUTEX_TAKE_TRY_LOCK_FOR_SPIN(vc->read.vio.mutex, thread, vc->read.vio._cont, READ_LOCK_SPIN_COUNT))
+#endif
+            {
+              vc->read_locked = 0;
+            } else {
+              vc->read_locked = vc->read.vio.mutex;
+            }
+
+            ///////////////////////////////////////
+            // Allocate read data block
+            ///////////////////////////////////////
+            if (s.msg.descriptor[i].length) {
+              vc->iov_map = new_n_iov;
+            } else {
+              vc->iov_map = CLUSTER_IOV_NONE;
+            }
+            if (vc->pending_remote_fill || vc_ok_read(vc)) {
+              //////////////////////////////////////////////////////////
+              // Initial and subsequent data on open read channel.
+              // Allocate IOBufferBlock.
+              //////////////////////////////////////////////////////////
+              ink_release_assert(s.msg.descriptor[i].length <= DEFAULT_MAX_BUFFER_SIZE);
+              vc->read_block = new_IOBufferBlock();
+              int64_t index = buffer_size_to_index(s.msg.descriptor[i].length, MAX_BUFFER_SIZE_INDEX);
+              vc->read_block->alloc(index);
+
+              s.iov[new_n_iov].iov_base = 0;
+              s.block[new_n_iov] = vc->read_block->clone();
+
+            } else {
+              Debug(CL_NOTE, "dumping cluster read data");
+              s.iov[new_n_iov].iov_base = 0;
+              s.block[new_n_iov] = new_IOBufferBlock();
+              s.block[new_n_iov]->set(new_constant_IOBufferData(channel_dummy_input, DEFAULT_MAX_BUFFER_SIZE));
+            }
+
+            // Make block write_avail == descriptor[].length
+            s.block[new_n_iov]->_buf_end = s.block[new_n_iov]->end() + s.msg.descriptor[i].length;
+
+          } else {
+            bool remote_write_fill = (vc->pending_remote_fill && vc->remote_write_block);
+            // Sanity check, assert we have the lock
+            if (!remote_write_fill) {
+              ink_assert((ProxyMutex *) vc->write_locked);
+            }
+            if (vc_ok_write(vc) || remote_write_fill) {
+              if (remote_write_fill) {
+                s.iov[new_n_iov].iov_base = 0;
+                ink_release_assert((int) s.msg.descriptor[i].length == bytes_IOBufferBlockList(vc->remote_write_block, 1));
+                s.block[new_n_iov] = vc->remote_write_block;
+
+              } else {
+                s.iov[new_n_iov].iov_base = 0;
+                ink_release_assert((int) s.msg.descriptor[i].length <= vc->write_list_bytes);
+                s.block[new_n_iov] = vc->write_list;
+                vc->write_list = consume_IOBufferBlockList(vc->write_list, (int) s.msg.descriptor[i].length);
+                vc->write_list_bytes -= (int) s.msg.descriptor[i].length;
+                vc->write_bytes_in_transit += (int) s.msg.descriptor[i].length;
+
+                vc->write_list_tail = vc->write_list;
+                while (vc->write_list_tail && vc->write_list_tail->next)
+                  vc->write_list_tail = vc->write_list_tail->next;
+              }
+            } else {
+              Debug(CL_NOTE, "faking cluster write data");
+              s.iov[new_n_iov].iov_base = 0;
+              s.block[new_n_iov] = new_IOBufferBlock();
+              s.block[new_n_iov]->set(new_constant_IOBufferData(channel_dummy_output, DEFAULT_MAX_BUFFER_SIZE));
+              // Make block read_avail == descriptor[].length
+              s.block[new_n_iov]->fill(s.msg.descriptor[i].length);
+            }
+          }
+        } else {
+          // VC has been deleted, need to dump the bits...
+          s.iov[new_n_iov].iov_base = 0;
+          s.block[new_n_iov] = new_IOBufferBlock();
+
+          if (read_flag) {
+            s.block[new_n_iov]->set(new_constant_IOBufferData(channel_dummy_input, DEFAULT_MAX_BUFFER_SIZE));
+
+            // Make block write_avail == descriptor[].length
+            s.block[new_n_iov]->_buf_end = s.block[new_n_iov]->end() + s.msg.descriptor[i].length;
+
+          } else {
+            s.block[new_n_iov]->set(new_constant_IOBufferData(channel_dummy_output, DEFAULT_MAX_BUFFER_SIZE));
+
+            // Make block read_avail == descriptor[].length
+            s.block[new_n_iov]->fill(s.msg.descriptor[i].length);
+          }
+        }
+        s.iov[new_n_iov].iov_len = s.msg.descriptor[i].length;
+        to_do += s.iov[new_n_iov].iov_len;
+        ++new_n_iov;
+      }
+    }
+  }
+  // Release IOBufferBlock references used in previous i/o operation
+  for (n = new_n_iov; n < MAX_TCOUNT; ++n) {
+    s.block[n] = 0;
+  }
+
+  // Initialize i/o state variables
+  s.to_do = to_do;
+  s.did = 0;
+  s.n_iov = new_n_iov;
+  return true;
+
+  // TODO: This is apparently dead code, I added the #if 0 to avoid compiler
+  // warnings, but is this really intentional??
+#if 0
+  // Release all IOBufferBlock references.
+  for (n = 0; n < MAX_TCOUNT; ++n) {
+    s.block[n] = 0;
+  }
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_OP_DELAYED_FOR_LOCK_STAT);
+  Debug(CL_WARN, "%s delayed for locks", read_flag ? "read" : "write");
+  free_locks(read_flag, i);
+  return false;
+#endif
+}
+
+bool ClusterHandler::get_read_locks()
+{
+  ///////////////////////////////////////////////////////////////////////
+  // Reacquire locks for the request setup by build_initial_vector().
+  // We are called after each read completion prior to posting completion
+  ///////////////////////////////////////////////////////////////////////
+  ClusterState & s = read;
+  int i, n;
+  int bytes_processed;
+  int vec_bytes_remainder;
+  int iov_done[MAX_TCOUNT];
+
+  memset((char *) iov_done, 0, sizeof(int) * MAX_TCOUNT);
+
+  // Compute bytes transferred on a per vector basis
+  bytes_processed = s.did - s.bytes_xfered;     // not including bytes in this xfer
+
+  i = -1;
+  for (n = 0; n < s.n_iov; ++n) {
+    bytes_processed -= s.iov[n].iov_len;
+    if (bytes_processed >= 0) {
+      iov_done[n] = s.iov[n].iov_len;
+    } else {
+      iov_done[n] = s.iov[n].iov_len + bytes_processed;
+      if (i < 0) {
+        i = n;                  // note i/o start vector
+
+        // Now at vector where last transfer started,
+        // make considerations for the last transfer on this vector.
+
+        vec_bytes_remainder = (s.iov[n].iov_len - iov_done[n]);
+        bytes_processed = s.bytes_xfered;
+
+        bytes_processed -= vec_bytes_remainder;
+        if (bytes_processed >= 0) {
+          iov_done[n] = vec_bytes_remainder;
+        } else {
+          iov_done[n] = vec_bytes_remainder + bytes_processed;
+          break;
+        }
+      } else {
+        break;
+      }
+    }
+  }
+  ink_release_assert(i >= 0);
+
+  // Start lock acquisition at the first vector where we started
+  //  the last read.
+  //
+  //  Note: We are assuming that free space descriptors follow
+  //        the data descriptors.
+
+  for (; i < s.n_iov; ++i) {
+    if ((s.msg.descriptor[i].type == CLUSTER_SEND_DATA)
+        && (s.msg.descriptor[i].channel != CLUSTER_CONTROL_CHANNEL)) {
+
+      // Only user channels require locks
+
+      ClusterVConnection *
+        vc = channels[s.msg.descriptor[i].channel];
+      if (!VALID_CHANNEL(vc) ||
+          ((s.msg.descriptor[i].sequence_number) !=
+           CLUSTER_SEQUENCE_NUMBER(vc->token.sequence_number)) || !vc_ok_read(vc)) {
+        // Channel no longer valid, lock not needed since we
+        //  already have a reference to the buffer
+        continue;
+      }
+
+      ink_assert(!(ProxyMutex *) vc->read_locked);
+      vc->read_locked = vc->read.vio.mutex;
+      if (vc->byte_bank_q.head
+          || !MUTEX_TAKE_TRY_LOCK_FOR_SPIN(vc->read.vio.mutex, thread, vc->read.vio._cont, READ_LOCK_SPIN_COUNT)) {
+        // Pending byte bank completions or lock acquire failure.
+
+        vc->read_locked = NULL;
+        continue;
+      }
+      // Since we now have the mutex, really see if reads are allowed.
+
+      if (!vc_ok_read(vc)) {
+        MUTEX_UNTAKE_LOCK(vc->read.vio.mutex, thread);
+        vc->read_locked = NULL;
+        continue;
+      }
+      // Lock acquire success, move read bytes into VC
+
+      int64_t read_avail = vc->read_block->read_avail();
+
+      if (!vc->pending_remote_fill && read_avail) {
+        Debug("cluster_vc_xfer", "Deferred fill ch %d %p %" PRId64" bytes", vc->channel, vc, read_avail);
+
+        vc->read.vio.buffer.writer()->append_block(vc->read_block->clone());
+        if (complete_channel_read(read_avail, vc)) {
+          vc->read_block->consume(read_avail);
+        }
+      }
+    }
+  }
+  return true;                  // success
+}
+
+bool ClusterHandler::get_write_locks()
+{
+  ///////////////////////////////////////////////////////////////////////
+  // Reacquire locks for the request setup by build_initial_vector().
+  // We are called after the entire write completes prior to
+  // posting completion.
+  ///////////////////////////////////////////////////////////////////////
+  ClusterState & s = write;
+  int i;
+
+  for (i = 0; i < s.msg.count; ++i) {
+    if ((s.msg.descriptor[i].type == CLUSTER_SEND_DATA)
+        && (s.msg.descriptor[i].channel != CLUSTER_CONTROL_CHANNEL)) {
+
+      // Only user channels require locks
+
+      ClusterVConnection *
+        vc = channels[s.msg.descriptor[i].channel];
+      if (!VALID_CHANNEL(vc) ||
+          (s.msg.descriptor[i].sequence_number) != CLUSTER_SEQUENCE_NUMBER(vc->token.sequence_number)) {
+        // Channel no longer valid, lock not needed since we
+        //  already have a reference to the buffer
+        continue;
+      }
+      ink_assert(!(ProxyMutex *) vc->write_locked);
+      vc->write_locked = vc->write.vio.mutex;
+#ifdef CLUSTER_TOMCAT
+      if (vc->write_locked &&
+          !MUTEX_TAKE_TRY_LOCK_FOR_SPIN(vc->write.vio.mutex, thread, vc->write.vio._cont, WRITE_LOCK_SPIN_COUNT)) {
+#else
+      if (!MUTEX_TAKE_TRY_LOCK_FOR_SPIN(vc->write.vio.mutex, thread, vc->write.vio._cont, WRITE_LOCK_SPIN_COUNT)) {
+#endif
+        // write lock acquire failed, free all acquired locks and retry later
+        vc->write_locked = 0;
+        free_locks(CLUSTER_WRITE, i);
+        return false;
+      }
+    }
+  }
+  return true;
+}
+
+void
+ClusterHandler::swap_descriptor_bytes()
+{
+  for (int i = 0; i < read.msg.count; i++) {
+    read.msg.descriptor[i].SwapBytes();
+  }
+}
+
+void
+ClusterHandler::process_set_data_msgs()
+{
+  uint32_t cluster_function_index;
+  //
+  // Cluster set_data messages must always be processed ahead of all
+  // messages and data.  By convention, set_data messages (highest priority
+  // messages) always reside in the beginning of the descriptor
+  // and small control message structures.
+  //
+
+  /////////////////////////////////////////////
+  // Process small control set_data messages.
+  /////////////////////////////////////////////
+  if (!read.msg.did_small_control_set_data) {
+    char *p = (char *) &read.msg.descriptor[read.msg.count];
+    char *endp = p + read.msg.control_bytes;
+    while (p < endp) {
+      if (needByteSwap) {
+        ats_swap32((uint32_t *) p);   // length
+        ats_swap32((uint32_t *) (p + sizeof(int32_t))); // function code
+      }
+      int len = *(int32_t *) p;
+      cluster_function_index = *(uint32_t *) (p + sizeof(int32_t));
+
+      if ((cluster_function_index < (uint32_t) SIZE_clusterFunction)
+          && (cluster_function_index == SET_CHANNEL_DATA_CLUSTER_FUNCTION)) {
+        clusterFunction[SET_CHANNEL_DATA_CLUSTER_FUNCTION].pfn(this, p + (2 * sizeof(uint32_t)), len - sizeof(uint32_t));
+        // Mark message as processed.
+        *((uint32_t *) (p + sizeof(uint32_t))) = ~*((uint32_t *) (p + sizeof(uint32_t)));
+        p += (2 * sizeof(uint32_t)) + (len - sizeof(uint32_t));
+        p = (char *) DOUBLE_ALIGN(p);
+      } else {
+        // Reverse swap since this message will be reprocessed.
+
+        if (needByteSwap) {
+          ats_swap32((uint32_t *) p); // length
+          ats_swap32((uint32_t *) (p + sizeof(int32_t)));       // function code
+        }
+        break;                  // End of set_data messages
+      }
+    }
+    read.msg.control_data_offset = p - (char *) &read.msg.descriptor[read.msg.count];
+    read.msg.did_small_control_set_data = 1;
+  }
+  /////////////////////////////////////////////
+  // Process large control set_data messages.
+  /////////////////////////////////////////////
+  if (!read.msg.did_large_control_set_data) {
+    IncomingControl *ic = incoming_control.head;
+
+    while (ic) {
+      if (needByteSwap) {
+        ats_swap32((uint32_t *) ic->data);    // function code
+      }
+      cluster_function_index = *((uint32_t *) ic->data);
+
+      if ((cluster_function_index < (uint32_t) SIZE_clusterFunction)
+          && (cluster_function_index == SET_CHANNEL_DATA_CLUSTER_FUNCTION)) {
+
+        char *p = ic->data;
+        clusterFunction[SET_CHANNEL_DATA_CLUSTER_FUNCTION].pfn(this,
+                                                               (void *) (p + sizeof(int32_t)), ic->len - sizeof(int32_t));
+
+        // Reverse swap since this will be processed again for deallocation.
+        if (needByteSwap) {
+          ats_swap32((uint32_t *) p); // length
+          ats_swap32((uint32_t *) (p + sizeof(int32_t)));       // function code
+        }
+        // Mark message as processed.
+        // Defer dellocation until entire read is complete.
+        *((uint32_t *) p) = ~*((uint32_t *) p);
+
+        ic = (IncomingControl *) ic->link.next;
+      } else {
+        // Reverse swap action this message will be reprocessed.
+        if (needByteSwap) {
+          ats_swap32((uint32_t *) ic->data);  // function code
+        }
+        break;
+      }
+    }
+    read.msg.did_large_control_set_data = 1;
+  }
+}
+
+void
+ClusterHandler::process_small_control_msgs()
+{
+  if (read.msg.did_small_control_msgs) {
+    return;
+  } else {
+    read.msg.did_small_control_msgs = 1;
+  }
+
+  ink_hrtime now = ink_get_hrtime();
+  char *p = (char *) &read.msg.descriptor[read.msg.count] + read.msg.control_data_offset;
+  char *endp = (char *) &read.msg.descriptor[read.msg.count] + read.msg.control_bytes;
+
+  while (p < endp) {
+    /////////////////////////////////////////////////////////////////
+    // Place non cluster small incoming messages on external
+    // incoming queue for processing by callout threads.
+    /////////////////////////////////////////////////////////////////
+    if (needByteSwap) {
+      ats_swap32((uint32_t *) p);     // length
+      ats_swap32((uint32_t *) (p + sizeof(int32_t)));   // function code
+    }
+    int len = *(int32_t *) p;
+    p += sizeof(int32_t);
+    uint32_t cluster_function_index = *(uint32_t *) p;
+    ink_release_assert(cluster_function_index != SET_CHANNEL_DATA_CLUSTER_FUNCTION);
+
+    if (cluster_function_index >= (uint32_t) SIZE_clusterFunction) {
+      Warning("1Bad cluster function index (small control)");
+      p += len;
+
+    } else if (clusterFunction[cluster_function_index].ClusterFunc) {
+      //////////////////////////////////////////////////////////////////////
+      // Cluster function, can only be processed in ET_CLUSTER thread
+      //////////////////////////////////////////////////////////////////////
+      p += sizeof(uint32_t);
+      clusterFunction[cluster_function_index].pfn(this, p, len - sizeof(int32_t));
+      p += (len - sizeof(int32_t));
+
+    } else {
+      ///////////////////////////////////////////////////////
+      // Non Cluster function, defer to callout threads
+      ///////////////////////////////////////////////////////
+      IncomingControl *ic = IncomingControl::alloc();
+      ic->recognized_time = now;
+      ic->len = len;
+      ic->alloc_data();
+      memcpy(ic->data, p, ic->len);
+      SetHighBit(&ic->len);     // mark as small cntl
+      ink_atomiclist_push(&external_incoming_control, (void *) ic);
+      p += len;
+    }
+    p = (char *) DOUBLE_ALIGN(p);
+  }
+}
+
+void
+ClusterHandler::process_large_control_msgs()
+{
+  if (read.msg.did_large_control_msgs) {
+    return;
+  } else {
+    read.msg.did_large_control_msgs = 1;
+  }
+
+  ////////////////////////////////////////////////////////////////
+  // Place non cluster large incoming messages on external
+  // incoming queue for processing by callout threads.
+  ////////////////////////////////////////////////////////////////
+  IncomingControl *ic = NULL;
+  uint32_t cluster_function_index;
+
+  while ((ic = incoming_control.dequeue())) {
+    if (needByteSwap) {
+      ats_swap32((uint32_t *) ic->data);      // function code
+    }
+    cluster_function_index = *((uint32_t *) ic->data);
+    ink_release_assert(cluster_function_index != SET_CHANNEL_DATA_CLUSTER_FUNCTION);
+
+    if (cluster_function_index == (uint32_t) ~ SET_CHANNEL_DATA_CLUSTER_FUNCTION) {
+      // SET_CHANNEL_DATA_CLUSTER_FUNCTION already processed.
+      // Just do memory deallocation.
+
+      if (!clusterFunction[SET_CHANNEL_DATA_CLUSTER_FUNCTION].fMalloced)
+        ic->freeall();
+      continue;
+    }
+
+    if (cluster_function_index >= (uint32_t) SIZE_clusterFunction) {
+      Warning("Bad cluster function index (large control)");
+      ic->freeall();
+
+    } else if (clusterFunction[cluster_function_index].ClusterFunc) {
+      // Cluster message, process in ET_CLUSTER thread
+      clusterFunction[cluster_function_index].pfn(this, (void *) (ic->data + sizeof(int32_t)),
+                                                  ic->len - sizeof(int32_t));
+
+      // Deallocate memory
+      if (!clusterFunction[cluster_function_index].fMalloced)
+        ic->freeall();
+
+    } else {
+      // Non Cluster message, process in non ET_CLUSTER thread
+      ink_atomiclist_push(&external_incoming_control, (void *) ic);
+    }
+  }
+}
+
+void
+ClusterHandler::process_freespace_msgs()
+{
+  if (read.msg.did_freespace_msgs) {
+    return;
+  } else {
+    read.msg.did_freespace_msgs = 1;
+  }
+
+  int i;
+  //
+  // unpack CLUSTER_SEND_FREE (VC free space) messages and update
+  // the free space in the target VC(s).
+  //
+  for (i = 0; i < read.msg.count; i++) {
+    if (read.msg.descriptor[i].type == CLUSTER_SEND_FREE && read.msg.descriptor[i].channel != CLUSTER_CONTROL_CHANNEL) {
+      int c = read.msg.descriptor[i].channel;
+      if (c < n_channels && VALID_CHANNEL(channels[c]) &&
+          (CLUSTER_SEQUENCE_NUMBER(channels[c]->token.sequence_number) == read.msg.descriptor[i].sequence_number)) {
+        //
+        // VC received freespace message, move it to the
+        // current bucket, since it may have data to
+        // write (WRITE_VC_PRIORITY).
+        //
+        channels[c]->remote_free = read.msg.descriptor[i].length;
+        vcs_push(channels[c], VC_CLUSTER_WRITE);
+      }
+    }
+  }
+}
+
+void
+ClusterHandler::add_to_byte_bank(ClusterVConnection * vc)
+{
+  ByteBankDescriptor *bb_desc = ByteBankDescriptor::ByteBankDescriptor_alloc(vc->read_block);
+  bool pending_byte_bank_completion = vc->byte_bank_q.head ? true : false;
+
+  // Put current byte bank descriptor on completion list
+  vc->byte_bank_q.enqueue(bb_desc);
+
+  // Start byte bank completion action if not active
+  if (!pending_byte_bank_completion) {
+    ClusterVC_remove_read(vc);
+    delayed_reads.push(vc);
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_LEVEL1_BANK_STAT);
+  } else {
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_MULTILEVEL_BANK_STAT);
+  }
+  vc->read_block = 0;
+}
+
+void
+ClusterHandler::update_channels_read()
+{
+  //
+  // Update channels from which data has been read.
+  //
+  int i;
+  int len;
+  // This isn't used.
+  // int nread = read.bytes_xfered;
+
+  process_set_data_msgs();
+
+  //
+  // update the ClusterVConnections
+  //
+  for (i = 0; i < read.msg.count; i++) {
+    if (read.msg.descriptor[i].type == CLUSTER_SEND_DATA && read.msg.descriptor[i].channel != CLUSTER_CONTROL_CHANNEL) {
+      ClusterVConnection *vc = channels[read.msg.descriptor[i].channel];
+      if (VALID_CHANNEL(vc) &&
+          (read.msg.descriptor[i].sequence_number) == CLUSTER_SEQUENCE_NUMBER(vc->token.sequence_number)) {
+        vc->last_activity_time = current_time;  // note activity time
+
+        len = read.msg.descriptor[i].length;
+        if (!len) {
+          continue;
+        }
+
+        if (!vc->pending_remote_fill && vc_ok_read(vc)
+            && (!((ProxyMutex *) vc->read_locked) || vc->byte_bank_q.head)) {
+          //
+          // Byte bank active or unable to acquire lock on VC.
+          // Move data into the byte bank and attempt delivery
+          // at the next periodic event.
+          //
+          vc->read_block->fill(len);    // note bytes received
+          add_to_byte_bank(vc);
+
+        } else {
+          if (vc->pending_remote_fill || ((ProxyMutex *) vc->read_locked && vc_ok_read(vc))) {
+            vc->read_block->fill(len);  // note bytes received
+            if (!vc->pending_remote_fill) {
+              vc->read.vio.buffer.writer()->append_block(vc->read_block->clone());
+              vc->read_block->consume(len);     // note bytes moved to user
+            }
+            complete_channel_read(len, vc);
+          }
+        }
+      }
+    }
+  }
+
+  // Processs control and freespace messages
+  process_small_control_msgs();
+  process_large_control_msgs();
+  process_freespace_msgs();
+}
+
+//
+// This member function is run in a non ET_CLUSTER thread, which
+// performs the input message processing on behalf of ET_CLUSTER.
+// Primary motivation is to allow blocking and unbounded runtime
+// for message processing which cannot be done with a ET_CLUSTER thread.
+//
+int
+ClusterHandler::process_incoming_callouts(ProxyMutex * m)
+{
+  ProxyMutex *mutex = m;
+  ink_hrtime now;
+  //
+  // Atomically dequeue all active requests from the external queue and
+  // move them to the local working queue.  Insertion queue order is
+  // maintained.
+  //
+  Queue<IncomingControl> local_incoming_control;
+  IncomingControl *ic_ext_next;
+  IncomingControl *ic_ext;
+
+  while (true) {
+    ic_ext = (IncomingControl *)
+      ink_atomiclist_popall(&external_incoming_control);
+    if (!ic_ext)
+      break;
+
+    while (ic_ext) {
+      ic_ext_next = (IncomingControl *) ic_ext->link.next;
+      ic_ext->link.next = NULL;
+      local_incoming_control.push(ic_ext);
+      ic_ext = ic_ext_next;
+    }
+
+    // Perform callout actions for each message.
+    int small_control_msg;
+    IncomingControl *ic = NULL;
+
+    while ((ic = local_incoming_control.pop())) {
+      LOG_EVENT_TIME(ic->recognized_time, inmsg_time_dist, inmsg_events);
+
+      // Determine if this a small control message
+      small_control_msg = IsHighBitSet(&ic->len);
+      ClearHighBit(&ic->len);   // Clear small msg flag bit
+
+      if (small_control_msg) {
+        int len = ic->len;
+        char *p = ic->data;
+        uint32_t cluster_function_index = *(uint32_t *) p;
+        p += sizeof(uint32_t);
+
+        if (cluster_function_index < (uint32_t) SIZE_clusterFunction) {
+          ////////////////////////////////
+          // Invoke processing function
+          ////////////////////////////////
+          ink_assert(!clusterFunction[cluster_function_index].ClusterFunc);
+          clusterFunction[cluster_function_index].pfn(this, p, len - sizeof(int32_t));
+          now = ink_get_hrtime();
+          CLUSTER_SUM_DYN_STAT(CLUSTER_CTRL_MSGS_RECV_TIME_STAT, now - ic->recognized_time);
+        } else {
+          Warning("2Bad cluster function index (small control)");
+        }
+        // Deallocate memory
+        if (!clusterFunction[cluster_function_index].fMalloced)
+          ic->freeall();
+
+      } else {
+        ink_assert(ic->len > 4);
+        uint32_t cluster_function_index = *(uint32_t *) ic->data;
+        bool valid_index;
+
+        if (cluster_function_index < (uint32_t) SIZE_clusterFunction) {
+          valid_index = true;
+          ////////////////////////////////
+          // Invoke processing function
+          ////////////////////////////////
+          ink_assert(!clusterFunction[cluster_function_index].ClusterFunc);
+          clusterFunction[cluster_function_index].pfn(this, (void *) (ic->data + sizeof(int32_t)),
+                                                      ic->len - sizeof(int32_t));
+          now = ink_get_hrtime();
+          CLUSTER_SUM_DYN_STAT(CLUSTER_CTRL_MSGS_RECV_TIME_STAT, now - ic->recognized_time);
+        } else {
+          valid_index = false;
+          Warning("2Bad cluster function index (large control)");
+        }
+        if (valid_index && !clusterFunction[cluster_function_index].fMalloced)
+          ic->freeall();
+      }
+    }
+  }
+  return EVENT_CONT;
+}
+
+void
+ClusterHandler::update_channels_partial_read()
+{
+  //
+  // We were unable to read the computed amount.  Reflect the partial
+  // amount read in the associated VC read buffer data structures.
+  //
+  int i;
+  int64_t res = read.bytes_xfered;
+
+  if (!res) {
+    return;
+  }
+  ink_assert(res <= read.did);
+
+  // how much of the iov was done
+
+  int64_t iov_done[MAX_TCOUNT];
+  int64_t total = 0;
+  int64_t already_read = read.did - read.bytes_xfered;
+
+  for (i = 0; i < read.n_iov; i++) {
+    ink_release_assert(already_read >= 0);
+    iov_done[i] = read.iov[i].iov_len;
+
+    // Skip over bytes already processed
+    if (already_read) {
+      already_read -= iov_done[i];
+      if (already_read < 0) {
+        iov_done[i] = -already_read;    // bytes remaining
+        already_read = 0;
+      } else {
+        iov_done[i] = 0;
+        continue;
+      }
+    }
+    // Adjustments for partial read for the current transfer
+    res -= iov_done[i];
+    if (res < 0) {
+      iov_done[i] += res;
+      res = 0;
+    } else {
+      total += iov_done[i];
+    }
+  }
+  ink_assert(total <= read.did);
+
+  int read_all_large_control_msgs = 0;
+  //
+  // update the ClusterVConnections buffer pointers
+  //
+  for (i = 0; i < read.msg.count; i++) {
+    if (read.msg.descriptor[i].type == CLUSTER_SEND_DATA && read.msg.descriptor[i].channel != CLUSTER_CONTROL_CHANNEL) {
+      ClusterVConnection *vc = channels[read.msg.descriptor[i].channel];
+      if (VALID_CHANNEL(vc) &&
+          (read.msg.descriptor[i].sequence_number) == CLUSTER_SEQUENCE_NUMBER(vc->token.sequence_number)) {
+        if (vc->pending_remote_fill || (vc_ok_read(vc) && (vc->iov_map != CLUSTER_IOV_NONE))) {
+          vc->last_activity_time = current_time;        // note activity time
+          ClusterVConnState *s = &vc->read;
+          ink_assert(vc->iov_map < read.n_iov);
+          int len = iov_done[vc->iov_map];
+
+          if (len) {
+            if (!read_all_large_control_msgs) {
+              //
+              // Since all large set_data control messages reside at the
+              // beginning, all have been read if the first non-control
+              // descriptor contains > 0 bytes.
+              // Process them ahead of any VC data completion actions
+              // followed by small control and freespace message processing.
+              //
+              process_set_data_msgs();
+              process_small_control_msgs();
+              process_freespace_msgs();
+              read_all_large_control_msgs = 1;
+            }
+            iov_done[vc->iov_map] = 0;
+            vc->read_block->fill(len);  // note bytes received
+
+            if (!vc->pending_remote_fill) {
+              if ((ProxyMutex *) vc->read_locked) {
+                Debug("cluster_vc_xfer", "Partial read, credit ch %d %p %d bytes", vc->channel, vc, len);
+                s->vio.buffer.writer()->append_block(vc->read_block->clone());
+                if (complete_channel_read(len, vc)) {
+                  vc->read_block->consume(len); // note bytes moved to user
+                }
+
+              } else {
+                // If we have all the data for the VC, move it
+                // into the byte bank.  Otherwise, do nothing since
+                // we will resume the read at this VC.
+
+                if (len == (int) read.msg.descriptor[i].length) {
+                  Debug("cluster_vc_xfer", "Partial read, byte bank move ch %d %p %d bytes", vc->channel, vc, len);
+                  add_to_byte_bank(vc);
+                }
+              }
+            } else {
+              Debug("cluster_vc_xfer", "Partial remote fill read, credit ch %d %p %d bytes", vc->channel, vc, len);
+              complete_channel_read(len, vc);
+            }
+            read.msg.descriptor[i].length -= len;
+            ink_assert(((int) read.msg.descriptor[i].length) >= 0);
+          }
+          Debug(CL_TRACE, "partial_channel_read chan=%d len=%d", vc->channel, len);
+        }
+      }
+    }
+  }
+}
+
+bool ClusterHandler::complete_channel_read(int len, ClusterVConnection * vc)
+{
+  //
+  // We have processed a complete VC read request message for a channel,
+  // perform completion actions.
+  //
+  ClusterVConnState *s = &vc->read;
+
+  if (vc->pending_remote_fill) {
+    Debug(CL_TRACE, "complete_channel_read chan=%d len=%d", vc->channel, len);
+    vc->initial_data_bytes += len;
+    ++vc->pending_remote_fill;  // Note completion
+    return (vc->closed ? false : true);
+  }
+
+  if (vc->closed)
+    return false;               // No action if already closed
+
+  ink_assert((ProxyMutex *) s->vio.mutex == (ProxyMutex *) s->vio._cont->mutex);
+
+  Debug("cluster_vc_xfer", "Complete read, credit ch %d %p %d bytes", vc->channel, vc, len);
+  s->vio.ndone += len;
+
+  if (s->vio.ntodo() <= 0) {
+    s->enabled = 0;
+    if (cluster_signal_and_update_locked(VC_EVENT_READ_COMPLETE, vc, s)
+        == EVENT_DONE)
+      return false;
+  } else {
+    if (cluster_signal_and_update_locked(VC_EVENT_READ_READY, vc, s) == EVENT_DONE)
+      return false;
+    if (s->vio.ntodo() <= 0)
+      s->enabled = 0;
+  }
+
+  vcs_push(vc, VC_CLUSTER_READ);
+  return true;
+}
+
+void
+ClusterHandler::finish_delayed_reads()
+{
+  //
+  // Process pending VC delayed reads generated in the last read from
+  // the node to node connection. For explanation of "delayed read" see
+  // comments at the beginning of the member functions for ClusterHandler.
+  //
+  ClusterVConnection *vc = NULL;
+  DLL<ClusterVConnectionBase> l;
+  while ((vc = (ClusterVConnection *) delayed_reads.pop())) {
+    MUTEX_TRY_LOCK_SPIN(lock, vc->read.vio.mutex, thread, READ_LOCK_SPIN_COUNT);
+    if (lock) {
+      if (vc_ok_read(vc)) {
+        ink_assert(!vc->read.queue);
+        ByteBankDescriptor *d;
+
+        while ((d = vc->byte_bank_q.dequeue())) {
+          if (vc->read.queue) {
+            // Previous complete_channel_read() put us back on the list,
+            //  remove our self to process another byte bank completion
+            ClusterVC_remove_read(vc);
+          }
+          Debug("cluster_vc_xfer",
+                "Delayed read, credit ch %d %p %" PRId64" bytes", vc->channel, vc, d->get_block()->read_avail());
+          vc->read.vio.buffer.writer()->append_block(d->get_block());
+
+          if (complete_channel_read(d->get_block()->read_avail(), vc)) {
+            ByteBankDescriptor::ByteBankDescriptor_free(d);
+          } else {
+            ByteBankDescriptor::ByteBankDescriptor_free(d);
+            break;
+          }
+        }
+      }
+    } else
+      l.push(vc);
+  }
+  delayed_reads = l;
+}
+
+void
+ClusterHandler::update_channels_written()
+{
+  //
+  // We have sucessfully pushed the write data for the VC(s) described
+  // by the descriptors.
+  // Move the channels in this bucket to a new bucket.
+  // Lower the priority of those with too little data and raise that of
+  // those with too much data.
+  //
+  ink_hrtime now;
+  for (int i = 0; i < write.msg.count; i++) {
+    if (write.msg.descriptor[i].type == CLUSTER_SEND_DATA) {
+      if (write.msg.descriptor[i].channel != CLUSTER_CONTROL_CHANNEL) {
+        ClusterVConnection *vc = channels[write.msg.descriptor[i].channel];
+        if (VALID_CHANNEL(vc) &&
+            (write.msg.descriptor[i].sequence_number) == CLUSTER_SEQUENCE_NUMBER(vc->token.sequence_number)) {
+
+          if (vc->pending_remote_fill) {
+            Debug(CL_TRACE,
+                  "update_channels_written chan=%d seqno=%d len=%d",
+                  write.msg.descriptor[i].channel,
+                  write.msg.descriptor[i].sequence_number, write.msg.descriptor[i].length);
+            vc->pending_remote_fill = 0;
+            vc->remote_write_block = 0; // free data block
+            continue;           // ignore remote write fill VC(s)
+          }
+
+          ClusterVConnState *s = &vc->write;
+          int len = write.msg.descriptor[i].length;
+          vc->write_bytes_in_transit -= len;
+          ink_release_assert(vc->write_bytes_in_transit >= 0);
+          Debug(CL_PROTO, "(%d) data sent %d %" PRId64, write.msg.descriptor[i].channel, len, s->vio.ndone);
+
+          if (vc_ok_write(vc)) {
+            vc->last_activity_time = current_time;      // note activity time
+            int64_t ndone = vc->was_closed()? 0 : s->vio.ndone;
+
+            if (ndone < vc->remote_free) {
+              vcs_push(vc, VC_CLUSTER_WRITE);
+            }
+          }
+        }
+      } else {
+        //
+        // Free up outgoing control message space
+        //
+        OutgoingControl *oc = write.msg.outgoing_control.dequeue();
+        oc->free_data();
+        oc->mutex = NULL;
+        now = ink_get_hrtime();
+        CLUSTER_SUM_DYN_STAT(CLUSTER_CTRL_MSGS_SEND_TIME_STAT, now - oc->submit_time);
+        LOG_EVENT_TIME(oc->submit_time, cluster_send_time_dist, cluster_send_events);
+        oc->freeall();
+      }
+    }
+  }
+  //
+  // For compound messages, deallocate the data and header descriptors.
+  // The deallocation of the data descriptor will indirectly invoke
+  // the free memory proc described in set_data.
+  //
+  invoke_remote_data_args *args;
+  OutgoingControl *hdr_oc;
+  while ((hdr_oc = write.msg.outgoing_callout.dequeue())) {
+    args = (invoke_remote_data_args *) (hdr_oc->data + sizeof(int32_t));
+    ink_assert(args->magicno == invoke_remote_data_args::MagicNo);
+
+    // Free data descriptor
+    args->data_oc->free_data(); // invoke memory free callback
+    args->data_oc->mutex = NULL;
+    args->data_oc->freeall();
+
+    // Free descriptor
+    hdr_oc->free_data();
+    hdr_oc->mutex = NULL;
+    now = ink_get_hrtime();
+    CLUSTER_SUM_DYN_STAT(CLUSTER_CTRL_MSGS_SEND_TIME_STAT, now - hdr_oc->submit_time);
+    LOG_EVENT_TIME(hdr_oc->submit_time, cluster_send_time_dist, cluster_send_events);
+    hdr_oc->freeall();
+  }
+}
+
+int
+ClusterHandler::build_write_descriptors()
+{
+  //
+  // Construct the write descriptors for VC write data in the current
+  // write_vcs bucket with considerations for maximum elements per
+  // write (struct iovec system maximum).
+  //
+  int count_bucket = cur_vcs;
+  int tcount = write.msg.count + 2;     // count + descriptor
+  int write_descriptors_built = 0;
+  int valid;
+  int list_len = 0;
+  ClusterVConnection *vc, *vc_next;
+
+  //
+  // Build descriptors for connections with stuff to send.
+  //
+  vc = (ClusterVConnection *)ink_atomiclist_popall(&write_vcs_ready);
+  while (vc) {
+    enter_exit(&cls_build_writes_entered, &cls_writes_exited);
+    vc_next = (ClusterVConnection *) vc->ready_alink.next;
+    vc->ready_alink.next = NULL;
+    list_len++;
+    if (VC_CLUSTER_CLOSED == vc->type) {
+      vc->in_vcs = false;
+      vc->type = VC_NULL;
+      clusterVCAllocator.free(vc);
+      vc = vc_next;
+      continue;
+    }
+
+    if (tcount >= MAX_TCOUNT) {
+      vcs_push(vc, VC_CLUSTER_WRITE);
+    } else {
+      vc->in_vcs = false;
+      cluster_reschedule_offset(this, vc, &vc->write, 0);
+      tcount++;
+    }
+    vc = vc_next;
+  }
+  if (list_len) {
+    CLUSTER_SUM_DYN_STAT(CLUSTER_VC_WRITE_LIST_LEN_STAT, list_len);
+  }
+
+  tcount = write.msg.count + 2;
+  vc_next = (ClusterVConnection *) write_vcs[count_bucket].head;
+  while (vc_next) {
+    vc = vc_next;
+    vc_next = (ClusterVConnection *) vc->write.link.next;
+
+    if (VC_CLUSTER_CLOSED == vc->type) {
+      vc->type = VC_NULL;
+      clusterVCAllocator.free(vc);
+      vc = vc_next;
+      continue;
+    }
+
+    if (tcount >= MAX_TCOUNT)
+      break;
+
+    valid = valid_for_data_write(vc);
+    if (-1 == valid) {
+      vcs_push(vc, VC_CLUSTER_WRITE);
+    } else if (valid) {
+      ink_assert(vc->write_locked);     // Acquired in valid_for_data_write()
+      if ((vc->remote_free > (vc->write.vio.ndone - vc->write_list_bytes))
+          && channels[vc->channel] == vc) {
+
+        ink_assert(vc->write_list && vc->write_list_bytes);
+
+        int d = write.msg.count;
+        write.msg.descriptor[d].type = CLUSTER_SEND_DATA;
+        write.msg.descriptor[d].channel = vc->channel;
+        write.msg.descriptor[d].sequence_number = vc->token.sequence_number;
+        int s = vc->write_list_bytes;
+        ink_release_assert(s <= MAX_CLUSTER_SEND_LENGTH);
+
+        // Transfer no more than nbytes
+        if ((vc->write.vio.ndone - s) > vc->write.vio.nbytes)
+          s = vc->write.vio.nbytes - (vc->write.vio.ndone - s);
+
+        if ((vc->write.vio.ndone - s) > vc->remote_free)
+          s = vc->remote_free - (vc->write.vio.ndone - s);
+        write.msg.descriptor[d].length = s;
+        write.msg.count++;
+        tcount++;
+        write_descriptors_built++;
+
+#ifdef CLUSTER_STATS
+        _vc_writes++;
+        _vc_write_bytes += s;
+#endif
+
+      } else {
+        MUTEX_UNTAKE_LOCK(vc->write_locked, thread);
+        vc->write_locked = NULL;
+
+        if (channels[vc->channel] == vc)
+          CLUSTER_INCREMENT_DYN_STAT(CLUSTER_NO_REMOTE_SPACE_STAT);
+      }
+    }
+  }
+  return (write_descriptors_built);
+}
+
+int
+ClusterHandler::build_freespace_descriptors()
+{
+  //
+  // Construct the write descriptors for VC freespace data in the current
+  // read_vcs bucket with considerations for maximum elements per
+  // write (struct iovec system maximum) and for pending elements already
+  // in the list.
+  //
+  int count_bucket = cur_vcs;
+  int tcount = write.msg.count + 2;     // count + descriptor require 2 iovec(s)
+  int freespace_descriptors_built = 0;
+  int s = 0;
+  int list_len = 0;
+  ClusterVConnection *vc, *vc_next;
+
+  //
+  // Build descriptors for available space
+  //
+  vc = (ClusterVConnection *)ink_atomiclist_popall(&read_vcs_ready);
+  while (vc) {
+    enter_exit(&cls_build_reads_entered, &cls_reads_exited);
+    vc_next = (ClusterVConnection *) vc->ready_alink.next;
+    vc->ready_alink.next = NULL;
+    list_len++;
+    if (VC_CLUSTER_CLOSED == vc->type) {
+      vc->in_vcs = false;
+      vc->type = VC_NULL;
+      clusterVCAllocator.free(vc);
+      vc = vc_next;
+      continue;
+    }
+
+    if (tcount >= MAX_TCOUNT) {
+      vcs_push(vc, VC_CLUSTER_READ);
+    } else {
+      vc->in_vcs = false;
+      cluster_reschedule_offset(this, vc, &vc->read, 0);
+      tcount++;
+    }
+    vc = vc_next;
+  }
+  if (list_len) {
+    CLUSTER_SUM_DYN_STAT(CLUSTER_VC_READ_LIST_LEN_STAT, list_len);
+  }
+
+  tcount = write.msg.count + 2;
+  vc_next = (ClusterVConnection *) read_vcs[count_bucket].head;
+  while (vc_next) {
+    vc = vc_next;
+    vc_next = (ClusterVConnection *) vc->read.link.next;
+
+    if (VC_CLUSTER_CLOSED == vc->type) {
+      vc->type = VC_NULL;
+      clusterVCAllocator.free(vc);
+      vc = vc_next;
+      continue;
+    }
+
+    if (tcount >= MAX_TCOUNT)
+      break;
+
+    s = valid_for_freespace_write(vc);
+    if (-1 == s) {
+      vcs_push(vc, VC_CLUSTER_READ);
+    } else if (s) {
+      if (vc_ok_read(vc) && channels[vc->channel] == vc) {
+        // Send free space only if changed
+        int d = write.msg.count;
+        write.msg.descriptor[d].type = CLUSTER_SEND_FREE;
+        write.msg.descriptor[d].channel = vc->channel;
+        write.msg.descriptor[d].sequence_number = vc->token.sequence_number;
+
+        ink_assert(s > 0);
+        write.msg.descriptor[d].length = s;
+        vc->last_local_free = s;
+        Debug(CL_PROTO, "(%d) free space priority %d", vc->channel, vc->read.priority);
+        write.msg.count++;
+        tcount++;
+        freespace_descriptors_built++;
+      }
+    }
+    vc = vc_next;
+  }
+  return (freespace_descriptors_built);
+}
+
+int
+ClusterHandler::build_controlmsg_descriptors()
+{
+  //
+  // Construct the write descriptors for control message data in the
+  // outgoing_control queue with considerations for maximum elements per
+  // write (struct iovec system maximum) and for elements already
+  // in the list.
+  //
+  int tcount = write.msg.count + 2;     // count + descriptor require 2 iovec(s)
+  int control_msgs_built = 0;
+  bool compound_msg;            // msg + chan data
+  //
+  // Build descriptors for control messages
+  //
+  OutgoingControl *c = NULL;
+  int control_bytes = 0;
+  int q = 0;
+
+  while (tcount < (MAX_TCOUNT - 1)) {   // -1 to allow for compound messages
+    c = outgoing_control[q].pop();
+    if (!c) {
+      // Move elements from global outgoing_control to local queue
+      OutgoingControl *c_next;
+      c = (OutgoingControl *) ink_atomiclist_popall(&outgoing_control_al[q]);
+      if (c == 0) {
+        if (++q >= CLUSTER_CMSG_QUEUES) {
+          break;
+        } else {
+          continue;
+        }
+      }
+      while (c) {
+        c_next = (OutgoingControl *) c->link.next;
+        c->link.next = NULL;
+        outgoing_control[q].push(c);
+        c = c_next;
+      }
+      continue;
+
+    } else {
+      compound_msg = (*((int32_t *) c->data) == -1);      // (msg+chan data)?
+    }
+    if (!compound_msg && c->len <= SMALL_CONTROL_MESSAGE &&
+        // check if the receiving cluster function will want to malloc'ed data
+        !clusterFunction[*(int32_t *) c->data].fMalloced && control_bytes + c->len + sizeof(int32_t) * 2 + 7 < CONTROL_DATA) {
+      write.msg.outgoing_small_control.enqueue(c);
+      control_bytes += c->len + sizeof(int32_t) * 2 + 7;  // safe approximation
+      control_msgs_built++;
+
+      if (clusterFunction[*(int32_t *) c->data].post_pfn) {
+        clusterFunction[*(int32_t *) c->data].post_pfn(this, c->data + sizeof(int32_t), c->len);
+      }
+      continue;
+    }
+    //
+    // Build large control message descriptor
+    //
+    if (compound_msg) {
+      // Extract out components of compound message.
+      invoke_remote_data_args *cmhdr = (invoke_remote_data_args *) (c->data + sizeof(int32_t));
+      OutgoingControl *oc_header = c;
+      OutgoingControl *oc_msg = cmhdr->msg_oc;
+      OutgoingControl *oc_data = cmhdr->data_oc;
+
+      ink_assert(cmhdr->magicno == invoke_remote_data_args::MagicNo);
+      //
+      // Build descriptors and order the data before the reply message.
+      // Reply message processing assumes data completion action performed
+      // prior to processing completion message.
+      // Not an issue today since channel data is always processed first.
+      //
+      int d;
+      d = write.msg.count;
+      write.msg.descriptor[d].type = CLUSTER_SEND_DATA;
+      write.msg.descriptor[d].channel = cmhdr->dest_channel;
+      write.msg.descriptor[d].length = oc_data->len;
+      write.msg.descriptor[d].sequence_number = cmhdr->token.sequence_number;
+
+#ifdef CLUSTER_STATS
+      _vc_write_bytes += oc_data->len;
+#endif
+
+      // Setup remote write fill iovec.  Remote write fills have no VIO.
+      ClusterVConnection *vc = channels[cmhdr->dest_channel];
+
+      if (VALID_CHANNEL(vc) && vc->pending_remote_fill) {
+        ink_release_assert(!vc->remote_write_block);
+        vc->remote_write_block = oc_data->get_block();
+
+        // Note: No array overrun since we are bounded by (MAX_TCOUNT-1).
+        write.msg.count++;
+        tcount++;
+        control_msgs_built++;
+        d = write.msg.count;
+        write.msg.outgoing_control.enqueue(oc_msg);
+        write.msg.descriptor[d].type = CLUSTER_SEND_DATA;
+        write.msg.descriptor[d].channel = CLUSTER_CONTROL_CHANNEL;
+        write.msg.descriptor[d].length = oc_msg->len;
+
+#ifdef CLUSTER_STATS
+        _control_write_bytes += oc_msg->len;
+#endif
+
+        write.msg.count++;
+        tcount++;
+        control_msgs_built++;
+
+        // Queue header to process buffer free memory callbacks after send.
+        write.msg.outgoing_callout.enqueue(oc_header);
+
+      } else {
+        // Operation cancelled free memory.
+        Warning("Pending remote read fill aborted chan=%d len=%d", cmhdr->dest_channel, oc_data->len);
+
+        // Free compound message
+        oc_header->free_data();
+        oc_header->mutex = NULL;
+        oc_header->freeall();
+
+        // Free response message
+        oc_msg->free_data();
+        oc_msg->mutex = 0;
+        oc_msg->freeall();
+
+        // Free data descriptor
+        oc_data->free_data();   // invoke memory free callback
+        oc_data->mutex = 0;
+        oc_data->freeall();
+      }
+
+    } else {
+      write.msg.outgoing_control.enqueue(c);
+
+      int d = write.msg.count;
+      write.msg.descriptor[d].type = CLUSTER_SEND_DATA;
+      write.msg.descriptor[d].channel = CLUSTER_CONTROL_CHANNEL;
+      write.msg.descriptor[d].length = c->len;
+
+#ifdef CLUSTER_STATS
+      _control_write_bytes += c->len;
+#endif
+
+      write.msg.count++;
+      tcount++;
+      control_msgs_built++;
+
+      if (clusterFunction[*(int32_t *) c->data].post_pfn) {
+        clusterFunction[*(int32_t *) c->data].post_pfn(this, c->data + sizeof(int32_t), c->len);
+      }
+    }
+  }
+  return control_msgs_built;
+}
+
+int
+ClusterHandler::add_small_controlmsg_descriptors()
+{
+  //
+  // Move small control message data to free space after descriptors
+  //
+  char *p = (char *) &write.msg.descriptor[write.msg.count];
+  OutgoingControl *c = NULL;
+
+  while ((c = write.msg.outgoing_small_control.dequeue())) {
+    *(int32_t *) p = c->len;
+    p += sizeof(int32_t);
+    memcpy(p, c->data, c->len);
+    c->free_data();
+    c->mutex = NULL;
+    p += c->len;
+    ink_hrtime now = ink_get_hrtime();
+    CLUSTER_SUM_DYN_STAT(CLUSTER_CTRL_MSGS_SEND_TIME_STAT, now - c->submit_time);
+    LOG_EVENT_TIME(c->submit_time, cluster_send_time_dist, cluster_send_events);
+    c->freeall();
+    p = (char *) DOUBLE_ALIGN(p);
+  }
+  write.msg.control_bytes = p - (char *) &write.msg.descriptor[write.msg.count];
+
+#ifdef CLUSTER_STATS
+  _control_write_bytes += write.msg.control_bytes;
+#endif
+
+  return 1;
+}
+
+struct DestructorLock
+{
+  DestructorLock(EThread * thread)
+  {
+    have_lock = false;
+    t = thread;
+  }
+   ~DestructorLock()
+  {
+    if (have_lock && m) {
+      Mutex_unlock(m, t);
+    }
+    m = 0;
+  }
+  EThread *t;
+  Ptr<ProxyMutex> m;
+  bool have_lock;
+};
+
+int
+ClusterHandler::valid_for_data_write(ClusterVConnection * vc)
+{
+  //
+  // Determine if writes are allowed on this VC
+  //
+  ClusterVConnState *s = &vc->write;
+
+  ink_assert(!on_stolen_thread);
+  ink_assert((ProxyMutex *) ! vc->write_locked);
+
+  //
+  // Attempt to get the lock, if we miss, push vc into the future
+  //
+  DestructorLock lock(thread);
+
+retry:
+  if ((lock.m = s->vio.mutex)) {
+    lock.have_lock = MUTEX_TAKE_TRY_LOCK_FOR_SPIN(lock.m, thread, s->vio._cont, WRITE_LOCK_SPIN_COUNT);
+    if (!lock.have_lock) {
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONNECTIONS_WRITE_LOCKED_STAT);
+
+#ifdef CLUSTER_STATS
+      _dw_missed_lock++;
+#endif
+      return -1;
+    }
+  }
+
+  if (vc->was_closed()) {
+    if (vc->schedule_write()) {
+#ifdef CLUSTER_TOMCAT
+      ink_assert(lock.m);
+#endif
+      vc->write_locked = lock.m;
+      lock.m = 0;
+      lock.have_lock = false;
+      return 1;
+    } else {
+      if (!vc->write_bytes_in_transit) {
+        close_ClusterVConnection(vc);
+      }
+      return 0;
+    }
+  }
+
+  if (!s->enabled && !vc->was_remote_closed()) {
+#ifdef CLUSTER_STATS
+    _dw_not_enabled++;
+#endif
+    return 0;
+  }
+
+  if (vc->pending_remote_fill) {
+    if (vc->was_remote_closed())
+      close_ClusterVConnection(vc);
+
+#ifdef CLUSTER_STATS
+    _dw_wait_remote_fill++;
+#endif
+    return 0;
+  }
+
+  if (!lock.have_lock || !s->vio.mutex || !s->vio._cont) {
+    if (!lock.have_lock && s->vio.mutex && s->vio._cont) {
+      goto retry;
+    } else {
+      // No active VIO
+#ifdef CLUSTER_STATS
+      _dw_no_active_vio++;
+#endif
+      return 0;
+    }
+  }
+  //
+  // If this connection has been closed remotely, send EOS
+  //
+  if (vc->was_remote_closed()) {
+    if (!vc->write_bytes_in_transit && !vc->schedule_write()) {
+      remote_close(vc, s);
+    }
+    return 0;
+  }
+  //
+  // If not enabled or not WRITE
+  //
+  if (!s->enabled || s->vio.op != VIO::WRITE) {
+    s->enabled = 0;
+#ifdef CLUSTER_STATS
+    _dw_not_enabled_or_no_write++;
+#endif
+    return 0;
+  }
+  //
+  // If no room on the remote side or set_data() messages pending
+  //
+  int set_data_msgs_pending = vc->n_set_data_msgs;
+  if (set_data_msgs_pending || (vc->remote_free <= (s->vio.ndone - vc->write_list_bytes))) {
+    if (set_data_msgs_pending) {
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_VC_WRITE_STALL_STAT);
+
+#ifdef CLUSTER_STATS
+      _dw_set_data_pending++;
+#endif
+
+    } else {
+#ifdef CLUSTER_STATS
+      _dw_no_free_space++;
+#endif
+    }
+    return 0;
+  }
+  //
+  // Calculate amount writable
+  //
+  MIOBufferAccessor & buf = s->vio.buffer;
+
+  int64_t towrite = buf.reader()->read_avail();
+  int64_t ntodo = s->vio.ntodo();
+  bool write_vc_signal = false;
+
+  if (towrite > ntodo)
+    towrite = ntodo;
+
+  ink_assert(ntodo >= 0);
+  if (ntodo <= 0) {
+    cluster_signal_and_update(VC_EVENT_WRITE_COMPLETE, vc, s);
+    return 0;
+  }
+  if (buf.writer()->write_avail() && towrite != ntodo) {
+    write_vc_signal = true;
+    if (cluster_signal_and_update(VC_EVENT_WRITE_READY, vc, s) == EVENT_DONE)
+      return 0;
+    ink_assert(s->vio.ntodo() >= 0);
+    if (s->vio.ntodo() <= 0) {
+      cluster_signal_and_update(VC_EVENT_WRITE_COMPLETE, vc, s);
+      return 0;
+    }
+  }
+  // Clone nbytes of vio.buffer.reader IOBufferBlock list allowing
+  // write_list to contain no more than DEFAULT_MAX_BUFFER_SIZE bytes.
+
+  Ptr<IOBufferBlock> b_list;
+  IOBufferBlock *b_tail;
+  int bytes_to_fill;
+  int consume_bytes;
+
+  bytes_to_fill = DEFAULT_MAX_BUFFER_SIZE - vc->write_list_bytes;
+
+  if (towrite && bytes_to_fill) {
+    consume_bytes = (towrite > bytes_to_fill) ? bytes_to_fill : towrite;
+    b_list = clone_IOBufferBlockList(s->vio.buffer.reader()->block,
+                                     s->vio.buffer.reader()->start_offset, consume_bytes, &b_tail);
+    ink_assert(b_tail);
+
+    // Append cloned IOBufferBlock list to VC write_list.
+
+    if (vc->write_list_tail) {
+      vc->write_list_tail->next = b_list;
+    } else {
+      vc->write_list = b_list;
+    }
+    vc->write_list_tail = b_tail;
+    vc->write_list_bytes += consume_bytes;
+    ink_assert(bytes_IOBufferBlockList(vc->write_list, 1) == vc->write_list_bytes);
+
+    // We may defer the write, but tell the user we have consumed the data.
+
+    (s->vio.buffer.reader())->consume(consume_bytes);
+    s->vio.ndone += consume_bytes;
+    if (s->vio.ntodo() <= 0) {
+      cluster_signal_and_update_locked(VC_EVENT_WRITE_COMPLETE, vc, s);
+    }
+  }
+
+  if (vc->schedule_write()) {
+#ifdef CLUSTER_TOMCAT
+    ink_assert(s->vio.mutex);
+#endif
+    vc->write_locked = lock.m;
+    lock.m = 0;
+    lock.have_lock = false;
+    return 1;
+  } else {
+    if (!write_vc_signal && buf.writer()->write_avail() && towrite != ntodo)
+       cluster_signal_and_update(VC_EVENT_WRITE_READY, vc, s);
+    return 0;
+  }
+}
+
+int
+ClusterHandler::valid_for_freespace_write(ClusterVConnection * vc)
+{
+  //
+  // Determine if freespace messages are allowed on this VC
+  //
+  ClusterVConnState *s = &vc->read;
+
+  ink_assert(!on_stolen_thread);
+
+  //
+  // Attempt to get the lock, if we miss, push vc into the future
+  //
+  DestructorLock lock(thread);
+
+retry:
+  if ((lock.m = s->vio.mutex)) {
+    lock.have_lock = MUTEX_TAKE_TRY_LOCK_FOR_SPIN(lock.m, thread, s->vio._cont, READ_LOCK_SPIN_COUNT);
+
+    if (!lock.have_lock) {
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONNECTIONS_READ_LOCKED_STAT);
+
+#ifdef CLUSTER_STATS
+      _fw_missed_lock++;
+#endif
+      return -1;
+    }
+  }
+  if (vc->was_closed()) {
+    if (!vc->write_bytes_in_transit && !vc->schedule_write()) {
+      close_ClusterVConnection(vc);
+    } 
+    return 0;
+  }
+
+  if (!s->enabled && !vc->was_remote_closed()) {
+#ifdef CLUSTER_STATS
+    _fw_not_enabled++;
+#endif
+    return 0;
+  }
+
+  if (vc->pending_remote_fill) {
+    if (vc->was_remote_closed())
+      close_ClusterVConnection(vc);
+
+#ifdef CLUSTER_STATS
+    _fw_wait_remote_fill++;
+#endif
+    return 0;
+  }
+
+  if (!lock.have_lock || !s->vio.mutex || !s->vio._cont) {
+    if (!lock.have_lock && s->vio.mutex && s->vio._cont) {
+      goto retry;
+    } else {
+      // No active VIO
+#ifdef CLUSTER_STATS
+      _fw_no_active_vio++;
+#endif
+      return 0;
+    }
+  }
+  //
+  // If this connection has been closed remotely, send EOS
+  //
+  if (vc->was_remote_closed()) {
+    if (vc->write_bytes_in_transit || vc->schedule_write()) {
+      // Defer close until write data is pushed
+      return 0;
+    }
+    remote_close(vc, s);
+    return 0;
+  }
+  //
+  // If not enabled or not WRITE
+  //
+  if (!s->enabled || s->vio.op != VIO::READ) {
+#ifdef CLUSTER_STATS
+    _fw_not_enabled_or_no_read++;
+#endif
+    return 0;
+  }
+
+  int64_t ntodo = s->vio.ntodo();
+  ink_assert(ntodo >= 0);
+
+  if (ntodo <= 0) {
+    cluster_signal_and_update(VC_EVENT_READ_COMPLETE, vc, s);
+    return 0;
+  }
+
+  int64_t bytes_to_move = vc->initial_data_bytes;
+  if (vc->read_block && bytes_to_move) {
+
+    // Push initial read data into VC
+
+    if (ntodo >= bytes_to_move) {
+      Debug("cluster_vc_xfer", "finish initial data push ch %d bytes %" PRId64, vc->channel, vc->read_block->read_avail());
+
+      s->vio.buffer.writer()->append_block(vc->read_block->clone());
+      vc->read_block = 0;
+
+    } else {
+      bytes_to_move = ntodo;
+
+      Debug("cluster_vc_xfer", "initial data push ch %d bytes %" PRId64, vc->channel, bytes_to_move);
+
+      // Clone a portion of the data
+
+      IOBufferBlock *b, *btail;
+      b = clone_IOBufferBlockList(vc->read_block, 0, bytes_to_move, &btail);
+      s->vio.buffer.writer()->append_block(b);
+      vc->read_block->consume(bytes_to_move);
+    }
+    s->vio.ndone += bytes_to_move;
+    vc->initial_data_bytes -= bytes_to_move;
+
+    if (s->vio.ntodo() <= 0) {
+      s->enabled = 0;
+      cluster_signal_and_update_locked(VC_EVENT_READ_COMPLETE, vc, s);
+      return 0;
+
+    } else {
+      if (vc->have_all_data) {
+        if (!vc->read_block) {
+          s->enabled = 0;
+          cluster_signal_and_update(VC_EVENT_EOS, vc, s);
+          return 0;
+        }
+      }
+      if (cluster_signal_and_update_locked(VC_EVENT_READ_READY, vc, s)
+          == EVENT_DONE)
+        return false;
+
+      if (s->vio.ntodo() <= 0)
+        s->enabled = 0;
+
+      if (vc->initial_data_bytes)
+        return 0;
+    }
+  }
+  // At this point, all initial read data passed in the open_read reply
+  // has been moved into the user VC.
+  // Now allow send of freespace to receive additional data.
+
+  int64_t nextfree = vc->read.vio.ndone;
+
+  nextfree = (nextfree + DEFAULT_MAX_BUFFER_SIZE - 1) / DEFAULT_MAX_BUFFER_SIZE;
+  nextfree *= DEFAULT_MAX_BUFFER_SIZE;
+
+  if (nextfree >= (vc->last_local_free / 2)) {
+    nextfree = vc->last_local_free + (8 * DEFAULT_MAX_BUFFER_SIZE);
+  }
+
+  if ((vc->last_local_free == 0) || (nextfree >= vc->last_local_free)) {
+    Debug(CL_PROTO, "(%d) update freespace %" PRId64, vc->channel, nextfree);
+    //
+    // Have good VC candidate locked for freespace write
+    //
+    return nextfree;
+
+  } else {
+    // No free space update required
+    return 0;
+  }
+}
+
+void
+ClusterHandler::vcs_push(ClusterVConnection * vc, int type)
+{
+  if (vc->type <= VC_CLUSTER)
+    vc->type = type;
+
+  while ((vc->type > VC_CLUSTER) && !vc->in_vcs && ink_atomic_cas(pvint32(&vc->in_vcs), 0, 1)) {
+    if (vc->type == VC_CLUSTER_READ)
+      ink_atomiclist_push(&vc->ch->read_vcs_ready, (void *)vc);
+    else
+      ink_atomiclist_push(&vc->ch->write_vcs_ready, (void *)vc);
+    return;
+  }
+}
+
+int
+ClusterHandler::remote_close(ClusterVConnection * vc, ClusterVConnState * ns)
+{
+  if (ns->vio.op != VIO::NONE && !vc->closed) {
+    ns->enabled = 0;
+    if (vc->remote_closed > 0) {
+      if (ns->vio.op == VIO::READ) {
+        if (ns->vio.nbytes == ns->vio.ndone) {
+          return cluster_signal_and_update(VC_EVENT_READ_COMPLETE, vc, ns);
+        } else {
+          return cluster_signal_and_update(VC_EVENT_EOS, vc, ns);
+        }
+      } else {
+        return cluster_signal_and_update(VC_EVENT_EOS, vc, ns);
+      }
+    } else {
+      return cluster_signal_error_and_update(vc, ns, vc->remote_lerrno);
+    }
+  }
+  return EVENT_CONT;
+}
+
+void
+ClusterHandler::steal_thread(EThread * t)
+{
+  //
+  // Attempt to push the control message now instead of waiting
+  // for the periodic event to process it.
+  //
+  if (t != thread &&            // different thread to steal
+      write.to_do <= 0 &&       // currently not trying to send data
+      // nothing big outstanding
+      !write.msg.count) {
+    mainClusterEvent(CLUSTER_EVENT_STEAL_THREAD, (Event *) t);
+  }
+}
+
+void
+ClusterHandler::free_locks(bool read_flag, int i)
+{
+  //
+  // Free VC locks.  Handle partial acquires up to i
+  //
+  if (i == CLUSTER_FREE_ALL_LOCKS) {
+    if (read_flag) {
+      i = (read.msg.state >= 2 ? read.msg.count : 0);
+    } else {
+      i = write.msg.count;
+    }
+  }
+  ClusterState & s = (read_flag ? read : write);
+  for (int j = 0; j < i; j++) {
+    if (s.msg.descriptor[j].type == CLUSTER_SEND_DATA && s.msg.descriptor[j].channel != CLUSTER_CONTROL_CHANNEL) {
+      ClusterVConnection *vc = channels[s.msg.descriptor[j].channel];
+      if (VALID_CHANNEL(vc)) {
+        if (read_flag) {
+          if ((ProxyMutex *) vc->read_locked) {
+            MUTEX_UNTAKE_LOCK(vc->read.vio.mutex, thread);
+            vc->read_locked = NULL;
+          }
+        } else {
+          if ((ProxyMutex *) vc->write_locked) {
+            MUTEX_UNTAKE_LOCK(vc->write_locked, thread);
+            vc->write_locked = NULL;
+          }
+        }
+      }
+    } else if (!read_flag &&
+               s.msg.descriptor[j].type == CLUSTER_SEND_FREE &&
+               s.msg.descriptor[j].channel != CLUSTER_CONTROL_CHANNEL) {
+      ClusterVConnection *vc = channels[s.msg.descriptor[j].channel];
+      if (VALID_CHANNEL(vc)) {
+        if ((ProxyMutex *) vc->read_locked) {
+          MUTEX_UNTAKE_LOCK(vc->read_locked, thread);
+          vc->read_locked = NULL;
+        }
+      }
+    }
+  }
+}
+
+#ifdef CLUSTER_IMMEDIATE_NETIO
+void
+ClusterHandler::build_poll(bool next)
+{
+  Pollfd *pfd;
+  if (next) {
+    pfd = thread->nextPollDescriptor->alloc();
+    pfd->fd = net_vc->get_socket();
+    ifd = pfd - thread->nextPollDescriptor->pfd;
+  } else {
+    pfd = thread->pollDescriptor->alloc();
+    pfd->fd = net_vc->get_socket();
+    ifd = pfd - thread->pollDescriptor->pfd;
+  }
+  pfd->events = POLLHUP;
+  if (next) {
+    if (read.to_do)
+      pfd->events |= POLLIN;
+    if (write.to_do)
+      pfd->events |= POLLOUT;
+  } else {
+    // we have to lie since we are in the same cycle
+    pfd->events = POLLIN | POLLOUT;
+    // reads/writes are non-blocking anyway
+    pfd->revents = POLLIN | POLLOUT;
+  }
+}
+#endif // CLUSTER_IMMEDIATE_NETIO
+
+extern int CacheClusterMonitorEnabled;
+extern int CacheClusterMonitorIntervalSecs;
+
+
+//
+// The main event for machine-machine link
+//
+int
+ClusterHandler::mainClusterEvent(int event, Event * e)
+{
+  // Set global time
+  current_time = ink_get_hrtime();
+
+  if (CacheClusterMonitorEnabled) {
+    if ((current_time - last_trace_dump) > HRTIME_SECONDS(CacheClusterMonitorIntervalSecs)) {
+      last_trace_dump = current_time;
+      dump_internal_data();
+    }
+  }
+  //
+  // Note: The caller always acquires the ClusterHandler mutex prior
+  //       to the call.  This guarantees single threaded access in
+  //       mainClusterEvent()
+  //
+
+  /////////////////////////////////////////////////////////////////////////
+  // If cluster interconnect is overloaded, disable remote cluster ops.
+  /////////////////////////////////////////////////////////////////////////
+#ifndef DEBUG
+  if (clm && ClusterLoadMonitor::cf_monitor_enabled > 0) {
+#else
+  if (0) {
+#endif
+    bool last_state = disable_remote_cluster_ops;
+    if (clm->is_cluster_overloaded()) {
+      disable_remote_cluster_ops = true;
+    } else {
+      disable_remote_cluster_ops = false;
+    }
+    if (last_state != disable_remote_cluster_ops) {
+      if (disable_remote_cluster_ops) {
+        Note("Network congestion to [%u.%u.%u.%u] encountered, reverting to proxy only mode", DOT_SEPARATED(ip));
+      } else {
+        Note("Network congestion to [%u.%u.%u.%u] cleared, reverting to cache mode", DOT_SEPARATED(ip));
+        last_cluster_op_enable = current_time;
+      }
+    }
+  }
+
+  on_stolen_thread = (event == CLUSTER_EVENT_STEAL_THREAD);
+  bool io_callback = (event == EVENT_IMMEDIATE);
+
+  if (on_stolen_thread) {
+    thread = (EThread *) e;
+  } else {
+    if (io_callback) {
+      thread = this_ethread();
+    } else {
+      thread = e->ethread;
+    }
+  }
+
+  int io_activity = 1;
+  bool only_write_control_msgs;
+  int res;
+
+  while (io_activity) {
+    io_activity = 0;
+    only_write_control_msgs = 0;
+
+    if (downing) {
+      machine_down();
+      break;
+    }
+
+    //////////////////////////
+    // Read Processing
+    //////////////////////////
+    if (!on_stolen_thread) {
+      if (delayed_reads.head) {
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_DELAYED_READS_STAT);
+        finish_delayed_reads();
+      }
+      if ((res = process_read(current_time)) < 0) {
+        break;
+      }
+      io_activity += res;
+
+      if (delayed_reads.head) {
+        CLUSTER_INCREMENT_DYN_STAT(CLUSTER_DELAYED_READS_STAT);
+        finish_delayed_reads();
+      }
+    }
+    /////////////////////////
+    // Write Processing
+    /////////////////////////
+    if ((res = process_write(current_time, only_write_control_msgs)) < 0) {
+      break;
+    }
+    io_activity += res;
+
+    /////////////////////////////////////////
+    // Process deferred open_local requests
+    /////////////////////////////////////////
+    if (!on_stolen_thread) {
+      if (do_open_local_requests())
+		thread->signal_hook(thread);
+    }
+  }
+
+#ifdef CLUSTER_IMMEDIATE_NETIO
+  if (!dead && ((event == EVENT_POLL) || (event == EVENT_INTERVAL))) {
+    if (res >= 0) {
+      build_poll(true);
+    }
+  }
+#endif
+  return EVENT_CONT;
+}
+
+int
+ClusterHandler::process_read(ink_hrtime /* now ATS_UNUSED */)
+{
+#ifdef CLUSTER_STATS
+  _process_read_calls++;
+#endif
+  if (dead) {
+    // Node is down
+    return 0;
+  }
+  ///////////////////////////////
+  // Cluster read state machine
+  ///////////////////////////////
+
+  for (;;) {
+
+    switch (read.state) {
+      ///////////////////////////////////////////////
+    case ClusterState::READ_START:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_start++;
+#endif
+        read.msg.clear();
+        read.start_time = ink_get_hrtime();
+        if (build_initial_vector(CLUSTER_READ)) {
+          read.state = ClusterState::READ_HEADER;
+        } else {
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_HEADER:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_header++;
+#endif
+        read.state = ClusterState::READ_AWAIT_HEADER;
+        if (!read.doIO()) {
+          // i/o not initiated, retry later
+          read.state = ClusterState::READ_HEADER;
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_AWAIT_HEADER:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_await_header++;
+#endif
+        if (!read.io_complete) {
+          return 0;
+        } else {
+          if (read.io_complete < 0) {
+            // read error, declare node down
+            machine_down();
+            return -1;
+          }
+        }
+        if (read.to_do) {
+          if (read.bytes_xfered) {
+            CLUSTER_INCREMENT_DYN_STAT(CLUSTER_PARTIAL_READS_STAT);
+            read.state = ClusterState::READ_HEADER;
+            break;
+          } else {
+            // Zero byte read
+            read.state = ClusterState::READ_HEADER;
+            return 0;
+          }
+        } else {
+#ifdef MSG_TRACE
+          fprintf(t_fd,
+                  "[R] seqno=%d count=%d control_bytes=%d count_check=%d dsum=%d csum=%d\n",
+                  read.sequence_number,
+                  read.msg.hdr()->count, read.msg.hdr()->control_bytes,
+                  read.msg.hdr()->count_check, read.msg.hdr()->descriptor_cksum, read.msg.hdr()->control_bytes_cksum);
+          fflush(t_fd);
+#endif
+          CLUSTER_SUM_DYN_STAT(CLUSTER_READ_BYTES_STAT, read.did);
+          if (needByteSwap) {
+            read.msg.hdr()->SwapBytes();
+          }
+          read.msg.count = read.msg.hdr()->count;
+          read.msg.control_bytes = read.msg.hdr()->control_bytes;
+          read.msg.descriptor_cksum = read.msg.hdr()->descriptor_cksum;
+          read.msg.control_bytes_cksum = read.msg.hdr()->control_bytes_cksum;
+          read.msg.unused = read.msg.hdr()->unused;
+
+          if (MAGIC_COUNT(read) != read.msg.hdr()->count_check) {
+            ink_assert(!"Read bad ClusterMsgHeader data");
+            Warning("Bad ClusterMsgHeader read on [%d.%d.%d.%d], restarting", DOT_SEPARATED(ip));
+            Note("Cluster read from [%u.%u.%u.%u] failed, declaring down", DOT_SEPARATED(ip));
+            machine_down();
+            return -1;
+          }
+
+          if (read.msg.count || read.msg.control_bytes) {
+            read.msg.state++;
+            read.state = ClusterState::READ_SETUP_DESCRIPTOR;
+          } else {
+            read.state = ClusterState::READ_COMPLETE;
+          }
+          break;
+        }
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_SETUP_DESCRIPTOR:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_setup_descriptor++;
+#endif
+        if (build_initial_vector(CLUSTER_READ)) {
+          read.state = ClusterState::READ_DESCRIPTOR;
+        } else {
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_DESCRIPTOR:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_descriptor++;
+#endif
+        read.state = ClusterState::READ_AWAIT_DESCRIPTOR;
+        if (!read.doIO()) {
+          // i/o not initiated, retry later
+          read.state = ClusterState::READ_DESCRIPTOR;
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_AWAIT_DESCRIPTOR:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_await_descriptor++;
+#endif
+        if (!read.io_complete) {
+          return 0;
+        } else {
+          if (read.io_complete < 0) {
+            // read error, declare node down
+            machine_down();
+            return -1;
+          }
+        }
+        if (read.to_do) {
+          if (read.bytes_xfered) {
+            CLUSTER_INCREMENT_DYN_STAT(CLUSTER_PARTIAL_READS_STAT);
+            read.state = ClusterState::READ_DESCRIPTOR;
+            break;
+          } else {
+            // Zero byte read
+            read.state = ClusterState::READ_DESCRIPTOR;
+            return 0;
+          }
+        } else {
+#ifdef CLUSTER_MESSAGE_CKSUM
+          ink_release_assert(read.msg.calc_descriptor_cksum() == read.msg.descriptor_cksum);
+          ink_release_assert(read.msg.calc_control_bytes_cksum() == read.msg.control_bytes_cksum);
+#endif
+          CLUSTER_SUM_DYN_STAT(CLUSTER_READ_BYTES_STAT, read.did);
+          if (needByteSwap) {
+            // Descriptors need byte swap
+            swap_descriptor_bytes();
+          }
+          if (read.msg.count == 0) {
+            read.bytes_xfered = 0;
+            read.state = ClusterState::READ_COMPLETE;
+          } else {
+            read.msg.state++;
+            read.state = ClusterState::READ_SETUP_DATA;
+          }
+          break;
+        }
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_SETUP_DATA:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_setup_data++;
+#endif
+        if (build_initial_vector(CLUSTER_READ)) {
+          free_locks(CLUSTER_READ);
+          if (read.to_do) {
+            read.state = ClusterState::READ_DATA;
+          } else {
+            // Descriptor contains no VC data
+            read.state = ClusterState::READ_COMPLETE;
+          }
+        } else {
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_DATA:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_data++;
+#endif
+        ink_release_assert(read.to_do);
+        read.state = ClusterState::READ_AWAIT_DATA;
+        if (!read.doIO()) {
+          // i/o not initiated, retry later
+          read.state = ClusterState::READ_DATA;
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_AWAIT_DATA:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_await_data++;
+#endif
+        if (!read.io_complete) {
+          return 0;             // awaiting i/o complete
+        } else {
+          if (read.io_complete > 0) {
+            read.state = ClusterState::READ_POST_COMPLETE;
+          } else {
+            // read error, declare node down
+            machine_down();
+            return -1;
+          }
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_POST_COMPLETE:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_post_complete++;
+#endif
+        if (!get_read_locks()) {
+          return 0;
+        }
+        if (read.to_do) {
+          if (read.bytes_xfered) {
+            update_channels_partial_read();
+            free_locks(CLUSTER_READ);
+            CLUSTER_SUM_DYN_STAT(CLUSTER_READ_BYTES_STAT, read.bytes_xfered);
+            CLUSTER_INCREMENT_DYN_STAT(CLUSTER_PARTIAL_READS_STAT);
+            read.state = ClusterState::READ_DATA;
+            return 1;
+          } else {
+            // Zero byte read
+            free_locks(CLUSTER_READ);
+            read.state = ClusterState::READ_DATA;
+            return 0;
+          }
+        } else {
+          CLUSTER_SUM_DYN_STAT(CLUSTER_READ_BYTES_STAT, read.bytes_xfered);
+          read.state = ClusterState::READ_COMPLETE;
+          break;
+        }
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::READ_COMPLETE:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_read_complete++;
+#endif
+        ink_hrtime rdmsg_end_time = ink_get_hrtime();
+        CLUSTER_SUM_DYN_STAT(CLUSTER_RDMSG_ASSEMBLE_TIME_STAT, rdmsg_end_time - read.start_time);
+        read.start_time = HRTIME_MSECONDS(0);
+        if (dump_msgs)
+          dump_read_msg();
+        read.sequence_number++;
+        update_channels_read();
+        free_locks(CLUSTER_READ);
+
+        read.state = ClusterState::READ_START;
+        break;                  // setup next read
+      }
+      //////////////////
+    default:
+      //////////////////
+      {
+        ink_release_assert(!"ClusterHandler::process_read invalid state");
+      }
+
+    }                           // end of switch
+  }                             // end of for
+}
+
+int
+ClusterHandler::process_write(ink_hrtime now, bool only_write_control_msgs)
+{
+#ifdef CLUSTER_STATS
+  _process_write_calls++;
+#endif
+  /////////////////////////////////
+  // Cluster write state machine
+  /////////////////////////////////
+  for (;;) {
+
+    switch (write.state) {
+      ///////////////////////////////////////////////
+    case ClusterState::WRITE_START:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_write_start++;
+#endif
+        write.msg.clear();
+        write.last_time = ink_get_hrtime();
+        pw_write_descriptors_built = -1;
+        pw_freespace_descriptors_built = -1;
+        pw_controldata_descriptors_built = -1;
+        pw_time_expired = 0;
+        write.state = ClusterState::WRITE_SETUP;
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::WRITE_SETUP:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_write_setup++;
+#endif
+        if (!on_stolen_thread && !only_write_control_msgs) {
+          /////////////////////////////////////////////////////////////
+          // Build a complete write descriptor containing control,
+          // data and freespace message data.
+          /////////////////////////////////////////////////////////////
+
+          // Control message descriptors
+          if (pw_controldata_descriptors_built) {
+            pw_controldata_descriptors_built = build_controlmsg_descriptors();
+          }
+          // Write data descriptors
+          if (pw_write_descriptors_built) {
+            pw_write_descriptors_built = build_write_descriptors();
+          }
+          // Free space descriptors
+          if (pw_freespace_descriptors_built) {
+            pw_freespace_descriptors_built = build_freespace_descriptors();
+          }
+          add_small_controlmsg_descriptors();   // always last
+        } else {
+          /////////////////////////////////////////////////////////////
+          // Build a write descriptor only containing control data.
+          /////////////////////////////////////////////////////////////
+          pw_write_descriptors_built = 0;
+          pw_freespace_descriptors_built = 0;
+          pw_controldata_descriptors_built = build_controlmsg_descriptors();
+          add_small_controlmsg_descriptors();   // always last
+        }
+
+        // If nothing to write, post write completion
+        if (!pw_controldata_descriptors_built && !pw_write_descriptors_built && !pw_freespace_descriptors_built) {
+          write.state = ClusterState::WRITE_COMPLETE;
+          break;
+        } else {
+          started_on_stolen_thread = on_stolen_thread;
+          control_message_write = only_write_control_msgs;
+        }
+
+        // Move required data into the message header
+#ifdef CLUSTER_MESSAGE_CKSUM
+        write.msg.descriptor_cksum = write.msg.calc_descriptor_cksum();
+        write.msg.hdr()->descriptor_cksum = write.msg.descriptor_cksum;
+
+        write.msg.control_bytes_cksum = write.msg.calc_control_bytes_cksum();
+        write.msg.hdr()->control_bytes_cksum = write.msg.control_bytes_cksum;
+        write.msg.unused = 0;
+#endif
+        write.msg.hdr()->count = write.msg.count;
+        write.msg.hdr()->control_bytes = write.msg.control_bytes;
+        write.msg.hdr()->count_check = MAGIC_COUNT(write);
+
+        ink_release_assert(build_initial_vector(CLUSTER_WRITE));
+        free_locks(CLUSTER_WRITE);
+        write.state = ClusterState::WRITE_INITIATE;
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::WRITE_INITIATE:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_write_initiate++;
+#endif
+        write.state = ClusterState::WRITE_AWAIT_COMPLETION;
+        if (!write.doIO()) {
+          // i/o not initiated, retry later
+          write.state = ClusterState::WRITE_INITIATE;
+          return 0;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::WRITE_AWAIT_COMPLETION:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_write_await_completion++;
+#endif
+        if (!write.io_complete) {
+          // Still waiting for write i/o completion
+          return 0;
+        } else {
+          if (write.io_complete < 0) {
+            // write error, declare node down
+            machine_down();
+            write.state = ClusterState::WRITE_INITIATE;
+            break;
+          }
+          if (write.to_do) {
+            if (write.bytes_xfered) {
+              CLUSTER_INCREMENT_DYN_STAT(CLUSTER_PARTIAL_WRITES_STAT);
+              write.state = ClusterState::WRITE_INITIATE;
+              break;
+            } else {
+              // Zero byte write
+              write.state = ClusterState::WRITE_INITIATE;
+              return 0;
+            }
+          }
+          CLUSTER_SUM_DYN_STAT(CLUSTER_WRITE_BYTES_STAT, write.bytes_xfered);
+          write.sequence_number++;
+          write.state = ClusterState::WRITE_POST_COMPLETE;
+        }
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::WRITE_POST_COMPLETE:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_write_post_complete++;
+#endif
+        if (!get_write_locks()) {
+          CLUSTER_INCREMENT_DYN_STAT(CLUSTER_WRITE_LOCK_MISSES_STAT);
+          return 0;
+        }
+        //
+        // Move the channels into their new buckets based on how much
+        // was written
+        //
+        update_channels_written();
+        free_locks(CLUSTER_WRITE);
+        write.state = ClusterState::WRITE_COMPLETE;
+        break;
+      }
+      ///////////////////////////////////////////////
+    case ClusterState::WRITE_COMPLETE:
+      ///////////////////////////////////////////////
+      {
+#ifdef CLUSTER_STATS
+        _n_write_complete++;
+#endif
+        write.state = ClusterState::WRITE_START;
+        ink_hrtime curtime = ink_get_hrtime();
+
+        if (!on_stolen_thread) {
+          //
+          // Complete all work in the current bucket before moving to next
+          //
+          pw_time_expired = (curtime - now) > CLUSTER_MAX_RUN_TIME;
+
+          if (!control_message_write && !pw_write_descriptors_built
+              && !pw_freespace_descriptors_built && !pw_controldata_descriptors_built) {
+            // skip to the next bucket
+            cur_vcs = (cur_vcs + 1) % CLUSTER_BUCKETS;
+          }
+        } else {
+          //
+          // Place an upper bound on thread stealing
+          //
+          pw_time_expired = (curtime - now) > CLUSTER_MAX_THREAD_STEAL_TIME;
+          if (pw_time_expired) {
+            CLUSTER_INCREMENT_DYN_STAT(CLUSTER_THREAD_STEAL_EXPIRES_STAT);
+          }
+        }
+        //
+        // periodic activities
+        //
+        if (!on_stolen_thread && !cur_vcs && !dead) {
+          //
+          // check if this machine is supposed to be in the cluster
+          //
+          MachineList *mc = the_cluster_machines_config();
+          if (mc && !mc->find(ip, port)) {
+            Note("Cluster [%u.%u.%u.%u:%d] not in config, declaring down", DOT_SEPARATED(ip), port);
+            machine_down();
+          }
+        }
+        if (pw_time_expired) {
+          return -1;            // thread run time expired
+        } else {
+          if (pw_write_descriptors_built || pw_freespace_descriptors_built || pw_controldata_descriptors_built) {
+            break;              // start another write
+          } else {
+            return 0;           // no more data to write
+          }
+        }
+      }
+      //////////////////
+    default:
+      //////////////////
+      {
+        ink_release_assert(!"ClusterHandler::process_write invalid state");
+      }
+
+    }                           // End of switch
+  }                             // End of for
+}
+
+int
+ClusterHandler::do_open_local_requests()
+{
+  //
+  // open_local requests which are unable to obtain the ClusterHandler
+  // mutex are deferred and placed onto external_incoming_open_local queue.
+  // It is here where we process the open_local requests within the
+  // ET_CLUSTER thread.
+  //
+  int pending_request = 0;
+  ClusterVConnection *cvc;
+  ClusterVConnection *cvc_ext;
+  ClusterVConnection *cvc_ext_next;
+  EThread *tt = this_ethread();
+  Queue<ClusterVConnection> local_incoming_open_local;
+
+  //
+  // Atomically dequeue all requests from the external queue and
+  // move them to the local working queue while maintaining insertion order.
+  //
+  while (true) {
+    cvc_ext = (ClusterVConnection *)
+      ink_atomiclist_popall(&external_incoming_open_local);
+    if (cvc_ext == 0)
+      break;
+
+    while (cvc_ext) {
+      cvc_ext_next = (ClusterVConnection *) cvc_ext->link.next;
+      cvc_ext->link.next = NULL;
+      local_incoming_open_local.push(cvc_ext);
+      cvc_ext = cvc_ext_next;
+    }
+
+    // Process deferred open_local requests.
+
+    while ((cvc = local_incoming_open_local.pop())) {
+      MUTEX_TRY_LOCK(lock, cvc->action_.mutex, tt);
+      if (lock) {
+        if (cvc->start(tt) < 0) {
+          cvc->token.clear();
+          if (cvc->action_.continuation) {
+            cvc->action_.continuation->handleEvent(CLUSTER_EVENT_OPEN_FAILED, 0);
+            clusterVCAllocator.free(cvc);
+          }
+        }
+        MUTEX_RELEASE(lock);
+
+      } else {
+        // unable to get mutex, insert request back onto global queue.
+        Debug(CL_TRACE, "do_open_local_requests() unable to acquire mutex (cvc=%p)", cvc);
+        pending_request = 1;
+        ink_atomiclist_push(&external_incoming_open_local, (void *) cvc);
+      }
+    }
+  }
+  return pending_request;
+}
+
+// End of ClusterHandler.cc
diff --git a/iocore/cluster/ClusterHandlerBase.cc b/iocore/cluster/ClusterHandlerBase.cc
new file mode 100644
index 00000000..df81f0af
--- /dev/null
+++ b/iocore/cluster/ClusterHandlerBase.cc
@@ -0,0 +1,1463 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterHandlerBase.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+
+extern int cluster_receive_buffer_size;
+extern int cluster_send_buffer_size;
+extern uint32_t cluster_sockopt_flags;
+extern uint32_t cluster_packet_mark;
+extern uint32_t cluster_packet_tos;
+extern int num_of_cluster_threads;
+
+
+///////////////////////////////////////////////////////////////
+// Incoming message continuation for periodic callout threads
+///////////////////////////////////////////////////////////////
+
+ClusterCalloutContinuation::ClusterCalloutContinuation(struct ClusterHandler *ch)
+  :
+Continuation(0),
+_ch(ch)
+{
+  mutex = new_ProxyMutex();
+  SET_HANDLER((ClstCoutContHandler)
+              & ClusterCalloutContinuation::CalloutHandler);
+}
+
+ClusterCalloutContinuation::~ClusterCalloutContinuation()
+{
+  mutex = 0;
+}
+
+int
+ClusterCalloutContinuation::CalloutHandler(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  return _ch->process_incoming_callouts(this->mutex);
+}
+
+/*************************************************************************/
+// ClusterControl member functions (Internal Class)
+/*************************************************************************/
+ClusterControl::ClusterControl():
+Continuation(NULL), len(0), size_index(-1), real_data(0), data(0), free_proc(0), free_proc_arg(0), iob_block(0)
+{
+}
+
+void
+ClusterControl::real_alloc_data(int read_access, bool align_int32_on_non_int64_boundary)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  ink_assert(!data);
+  if ((len + DATA_HDR + sizeof(int32_t)) <= DEFAULT_MAX_BUFFER_SIZE) {
+    size_index = buffer_size_to_index(len + DATA_HDR + sizeof(int32_t), MAX_BUFFER_SIZE_INDEX);
+    iob_block = new_IOBufferBlock();
+    iob_block->alloc(size_index);       // aligns on 8 byte boundary
+    real_data = (int64_t *) iob_block->buf();
+
+    if (align_int32_on_non_int64_boundary) {
+      data = ((char *) real_data) + sizeof(int32_t) + DATA_HDR;
+    } else {
+      data = ((char *) real_data) + DATA_HDR;
+    }
+  } else {
+    int size = sizeof(int64_t) * (((len + DATA_HDR + sizeof(int32_t) + sizeof(int64_t) - 1) / sizeof(int64_t)) + 1);
+    size_index = -1;
+    iob_block = new_IOBufferBlock();
+    iob_block->alloc(BUFFER_SIZE_FOR_XMALLOC(size));
+    real_data = (int64_t *) iob_block->buf();
+
+    if (align_int32_on_non_int64_boundary) {
+      data = (char *) DOUBLE_ALIGN(real_data) + sizeof(int32_t) + DATA_HDR;
+    } else {
+      data = (char *) DOUBLE_ALIGN(real_data) + DATA_HDR;
+    }
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_ALLOC_DATA_NEWS_STAT);
+  }
+
+  // IOBufferBlock adjustments
+  if (read_access) {
+    // Make iob_block->read_avail() == len
+    iob_block->fill((char *) data - (char *) real_data);        // skip header
+    iob_block->consume((char *) data - (char *) real_data);     // skip header
+    iob_block->fill(len);
+  } else {
+    // Make iob_block->write_avail() == len
+    iob_block->fill((char *) data - (char *) real_data);        // skip header
+    iob_block->consume((char *) data - (char *) real_data);     // skip header
+    iob_block->_buf_end = iob_block->end() + len;
+  }
+
+  // Write size_index, magic number and 'this' in leading bytes
+  char *size_index_ptr = (char *) data - DATA_HDR;
+  *size_index_ptr = size_index;
+  ++size_index_ptr;
+
+  *size_index_ptr = (char) ALLOC_DATA_MAGIC;
+  ++size_index_ptr;
+
+  void *val = (void *) this;
+  memcpy(size_index_ptr, (char *) &val, sizeof(void *));
+}
+
+void
+ClusterControl::free_data()
+{
+  if (data && iob_block) {
+    if (free_proc) {
+      // Free memory via callback proc
+      (*free_proc) (free_proc_arg);
+      iob_block = 0;            // really free memory
+      return;
+    }
+    if (real_data) {
+      ink_release_assert(*(((uint8_t *) data) - DATA_HDR + 1) == (uint8_t) ALLOC_DATA_MAGIC);
+      *(((uint8_t *) data) - DATA_HDR + 1) = (uint8_t) ~ ALLOC_DATA_MAGIC;
+
+      ink_release_assert(*(((char *) data) - DATA_HDR) == size_index);         
+    } else {
+      // malloc'ed memory, not alloced via real_alloc_data().
+      // Data will be ats_free()'ed when IOBufferBlock is freed
+    }
+    iob_block = 0;              // free memory
+  }
+}
+
+/*************************************************************************/
+// IncomingControl member functions (Internal Class)
+/*************************************************************************/
+IncomingControl *
+IncomingControl::alloc()
+{
+  return inControlAllocator.alloc();
+}
+
+IncomingControl::IncomingControl()
+:recognized_time(0)
+{
+}
+
+void
+IncomingControl::freeall()
+{
+  free_data();
+  inControlAllocator.free(this);
+}
+
+/*************************************************************************/
+// OutgoingControl member functions (Internal Class)
+/*************************************************************************/
+OutgoingControl *
+OutgoingControl::alloc()
+{
+  return outControlAllocator.alloc();
+}
+
+OutgoingControl::OutgoingControl()
+:ch(NULL), submit_time(0)
+{
+}
+
+int
+OutgoingControl::startEvent(int event, Event * e)
+{
+  //
+  // This event handler is used by ClusterProcessor::invoke_remote()
+  // to delay (CLUSTER_OPT_DELAY) the enqueuing of the control message.
+  //
+  (void) event;
+  (void) e;
+  // verify that the machine has not gone down
+  if (!ch || !ch->thread)
+    return EVENT_DONE;
+
+  int32_t cluster_fn = *(int32_t *) this->data;
+  int32_t pri = ClusterFuncToQpri(cluster_fn);
+  ink_atomiclist_push(&ch->outgoing_control_al[pri], (void *) this);
+
+  return EVENT_DONE;
+}
+
+void
+OutgoingControl::freeall()
+{
+  free_data();
+  outControlAllocator.free(this);
+}
+
+/*************************************************************************/
+// ClusterState member functions (Internal Class)
+/*************************************************************************/
+ClusterState::ClusterState(ClusterHandler * c, bool read_chan):
+Continuation(0),
+ch(c),
+read_channel(read_chan),
+do_iodone_event(false),
+n_descriptors(0),
+sequence_number(0),
+to_do(0),
+did(0),
+n_iov(0),
+io_complete(1),
+io_complete_event(0),
+v(0),
+bytes_xfered(0),
+last_ndone(0),
+total_bytes_xfered(0),
+iov(NULL),
+iob_iov(NULL),
+byte_bank(NULL),
+n_byte_bank(0), byte_bank_size(0), missed(0), missed_msg(false), read_state_t(READ_START), write_state_t(WRITE_START)
+{
+  mutex = new_ProxyMutex();
+  if (read_channel) {
+    state = ClusterState::READ_START;
+    SET_HANDLER(&ClusterState::doIO_read_event);
+  } else {
+    state = ClusterState::WRITE_START;
+    SET_HANDLER(&ClusterState::doIO_write_event);
+  }
+  last_time = HRTIME_SECONDS(0);
+  start_time = HRTIME_SECONDS(0);
+  int size;
+  //
+  // Note: we allocate space for maximum iovec(s), descriptor(s)
+  //       and small control message data.
+  //
+
+  //////////////////////////////////////////////////
+  // Place an invalid page in front of iovec data.
+  //////////////////////////////////////////////////
+  size_t pagesize = ats_pagesize();
+  size = ((MAX_TCOUNT + 1) * sizeof(IOVec)) + (2 * pagesize);
+  iob_iov = new_IOBufferData(BUFFER_SIZE_FOR_XMALLOC(size));
+  char *addr = (char *) align_pointer_forward(iob_iov->data(), pagesize);
+
+  iov = (IOVec *) (addr + pagesize);
+
+  ///////////////////////////////////////////////////
+  // Place an invalid page in front of message data.
+  ///////////////////////////////////////////////////
+  size = sizeof(ClusterMsgHeader) + (MAX_TCOUNT + 1) * sizeof(Descriptor)
+    + CONTROL_DATA + (2 * pagesize);
+  msg.iob_descriptor_block = new_IOBufferBlock();
+  msg.iob_descriptor_block->alloc(BUFFER_SIZE_FOR_XMALLOC(size));
+
+  addr = (char *) align_pointer_forward(msg.iob_descriptor_block->data->data(), pagesize);
+
+  addr = addr + pagesize;
+  memset(addr, 0, size - (2 * pagesize));
+  msg.descriptor = (Descriptor *) (addr + sizeof(ClusterMsgHeader));
+
+  mbuf = new_empty_MIOBuffer();
+}
+
+ClusterState::~ClusterState()
+{
+  mutex = 0;
+  if (iov) {
+    iob_iov = 0;                // Free memory
+  }
+
+  if (msg.descriptor) {
+    msg.iob_descriptor_block = 0;       // Free memory
+  }
+  // Deallocate IO Core structures
+  int n;
+  for (n = 0; n < MAX_TCOUNT; ++n) {
+    block[n] = 0;
+  }
+  free_empty_MIOBuffer(mbuf);
+  mbuf = 0;
+}
+
+void
+ClusterState::build_do_io_vector()
+{
+  //
+  // Construct the do_io_xxx data structures allowing transfer
+  // of the data described by the iovec structure.
+  //
+  int bytes_to_xfer = 0;
+  int n;
+  IOBufferBlock *last_block = 0;
+
+  mbuf->clear();
+
+  // Build the IOBufferBlock chain.
+
+  for (n = 0; n < n_iov; ++n) {
+    bytes_to_xfer += iov[n].iov_len;
+
+    if (last_block) {
+      last_block->next = block[n];
+    }
+    last_block = block[n];
+    while (last_block->next) {
+      last_block = last_block->next;
+    }
+  }
+  mbuf->_writer = block[0];
+  ink_release_assert(bytes_to_xfer == to_do);
+  ink_assert(bytes_to_xfer == bytes_IOBufferBlockList(mbuf->_writer, !read_channel));
+}
+
+#ifdef CLUSTER_TOMCAT
+#define REENABLE_IO() \
+  if (!ch->on_stolen_thread && !io_complete) { \
+    v->reenable_re(); \
+  }
+
+#else // !CLUSTER_TOMCAT
+
+#ifdef CLUSTER_IMMEDIATE_NETIO
+#define REENABLE_IO() \
+  if (!io_complete) { \
+    ((NetVConnection *) v->vc_server)->reenable_re_now(v); \
+  }
+
+#else // !CLUSTER_IMMEDIATE_NETIO
+
+#define REENABLE_IO() \
+  if (!io_complete) { \
+    v->reenable_re(); \
+  }
+#endif // !CLUSTER_IMMEDIATE_NETIO
+
+#endif // !CLUSTER_TOMCAT
+
+int
+ClusterState::doIO()
+{
+  ink_release_assert(io_complete);
+#if !defined(CLUSTER_IMMEDIATE_NETIO)
+  MUTEX_TRY_LOCK(lock, this->mutex, this_ethread());
+  if (!lock) {
+    return 0;                   // unable to initiate operation
+  }
+#endif
+
+  if (!ch->net_vc) {
+    // Node has gone down, simulate successful transfer
+    io_complete = 1;
+    bytes_xfered += to_do;
+    to_do = 0;
+    return 1;
+  }
+  //
+  // Setup and initiate or resume Cluster i/o request to the NetProcessor.
+  //
+  if ((to_do && (io_complete_event == VC_EVENT_READ_READY)) || (io_complete_event == VC_EVENT_WRITE_READY)) {
+
+    if (read_channel) {
+      // Partial read case
+      ink_assert(v->buffer.writer()->current_write_avail() == to_do);
+
+    } else {
+      // Partial write case
+      ink_assert(v->buffer.reader()->read_avail() == to_do);
+    }
+
+    // Resume operation
+    v->nbytes = to_do + did;
+    ink_release_assert(v->nbytes > v->ndone);
+
+    io_complete = false;
+    io_complete_event = 0;
+    REENABLE_IO();
+
+  } else {
+    // Start new do_io_xxx operation.
+    // Initialize globals
+
+    io_complete = false;
+    io_complete_event = 0;
+    bytes_xfered = 0;
+    last_ndone = 0;
+
+    build_do_io_vector();
+
+    if (read_channel) {
+      ink_assert(mbuf->current_write_avail() == to_do);
+#ifdef CLUSTER_IMMEDIATE_NETIO
+      v = ch->net_vc->do_io_read_now(this, to_do, mbuf);
+#else
+      v = ch->net_vc->do_io_read(this, to_do, mbuf);
+#endif
+      REENABLE_IO();
+
+    } else {
+      IOBufferReader *r = mbuf->alloc_reader();
+      r->block = mbuf->_writer;
+      ink_assert(r->read_avail() == to_do);
+#ifdef CLUSTER_IMMEDIATE_NETIO
+      v = ch->net_vc->do_io_write_now(this, to_do, r);
+#else
+      v = ch->net_vc->do_io_write(this, to_do, r);
+#endif
+      REENABLE_IO();
+    }
+  }
+  return 1;                     // operation initiated
+}
+
+int
+ClusterState::doIO_read_event(int event, void *d)
+{
+  ink_release_assert(!io_complete);
+  if (!v) {
+    v = (VIO *) d;              // Immediate callback on first NetVC read
+  }
+  ink_assert((VIO *) d == v);
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+    {
+      // Disable read processing
+      v->nbytes = v->ndone;
+      // fall through
+    }
+  case VC_EVENT_READ_COMPLETE:
+    {
+      bytes_xfered = v->ndone - last_ndone;
+      if (bytes_xfered) {
+        total_bytes_xfered += bytes_xfered;
+        did += bytes_xfered;
+        to_do -= bytes_xfered;
+      }
+      last_ndone = v->ndone;
+      io_complete_event = event;
+      INK_WRITE_MEMORY_BARRIER;
+
+      io_complete = 1;
+      IOComplete();
+
+      break;
+    }
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  default:
+    {
+      io_complete_event = event;
+      INK_WRITE_MEMORY_BARRIER;
+
+      io_complete = -1;
+      IOComplete();
+      break;
+    }
+  }                             // End of switch
+
+  return EVENT_DONE;
+}
+
+int
+ClusterState::doIO_write_event(int event, void *d)
+{
+  ink_release_assert(!io_complete);
+  if (!v) {
+    v = (VIO *) d;              // Immediate callback on first NetVC write
+  }
+  ink_assert((VIO *) d == v);
+
+  switch (event) {
+  case VC_EVENT_WRITE_READY:
+#ifdef CLUSTER_IMMEDIATE_NETIO
+    {
+      // Disable write processing
+      v->nbytes = v->ndone;
+      // fall through
+    }
+#endif
+  case VC_EVENT_WRITE_COMPLETE:
+    {
+      bytes_xfered = v->ndone - last_ndone;
+      if (bytes_xfered) {
+        total_bytes_xfered += bytes_xfered;
+        did += bytes_xfered;
+        to_do -= bytes_xfered;
+      }
+      last_ndone = v->ndone;
+#ifdef CLUSTER_IMMEDIATE_NETIO
+      io_complete_event = event;
+      INK_WRITE_MEMORY_BARRIER;
+
+      io_complete = 1;
+      IOComplete();
+#else
+      if (event == VC_EVENT_WRITE_COMPLETE) {
+        io_complete_event = event;
+        INK_WRITE_MEMORY_BARRIER;
+
+        io_complete = 1;
+        IOComplete();
+      } else {
+        if (bytes_xfered) {
+          v->reenable_re();     // Immediate action
+        } else {
+          v->reenable();
+        }
+        return EVENT_DONE;
+      }
+#endif
+      break;
+    }
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  default:
+    {
+      io_complete_event = event;
+      INK_WRITE_MEMORY_BARRIER;
+
+      io_complete = -1;
+      IOComplete();
+      break;
+    }
+  }                             // End of switch
+
+  return EVENT_DONE;
+}
+
+void
+ClusterState::IOComplete()
+{
+  // If no thread appears (approximate check) to be holding
+  // the ClusterHandler mutex (no cluster processing in progress)
+  // and immediate i/o completion events are allowed,
+  // start i/o completion processing.
+
+  if (do_iodone_event && !ch->mutex->thread_holding) {
+    MUTEX_TRY_LOCK(lock, ch->mutex, this_ethread());
+    if (lock) {
+      ch->handleEvent(EVENT_IMMEDIATE, (void *) 0);
+    } else {
+      eventProcessor.schedule_imm_signal(ch, ET_CLUSTER);
+    }
+  }
+}
+
+int
+ClusterHandler::cluster_signal_and_update(int event, ClusterVConnection * vc, ClusterVConnState * s)
+{
+  s->vio._cont->handleEvent(event, &s->vio);
+
+  if (vc->closed) {
+    if (!vc->write_list && !vc->write_bytes_in_transit) {
+      close_ClusterVConnection(vc);
+    }
+    return EVENT_DONE;
+  } else {
+    ink_assert((event != VC_EVENT_ERROR) || ((event == VC_EVENT_ERROR) && vc->closed));
+    return EVENT_CONT;
+  }
+}
+
+int
+ClusterHandler::cluster_signal_and_update_locked(int event, ClusterVConnection * vc, ClusterVConnState * s)
+{
+  // should assert we have s->vio.mutex
+  s->vio._cont->handleEvent(event, &s->vio);
+
+  if (vc->closed) {
+    if (!vc->write_list && !vc->write_bytes_in_transit) {
+      close_free_lock(vc, s);
+    }
+    return EVENT_DONE;
+  } else
+    return EVENT_CONT;
+}
+
+int
+ClusterHandler::cluster_signal_error_and_update(ClusterVConnection * vc, ClusterVConnState * s, int lerrno)
+{
+  s->enabled = 0;
+  vc->lerrno = lerrno;
+  return cluster_signal_and_update(VC_EVENT_ERROR, vc, s);
+}
+
+bool ClusterHandler::check_channel(int c)
+{
+  //
+  // Check to see that there is enough room to store channel c
+  //
+  while (n_channels <= c) {
+    int
+      old_channels = n_channels;
+    if (!n_channels) {
+      n_channels = MIN_CHANNELS;
+    } else {
+      if ((n_channels * 2) <= MAX_CHANNELS) {
+        n_channels = n_channels * 2;
+      } else {
+        return false;           // Limit exceeded
+      }
+    }
+    // Allocate ClusterVConnection table entries
+    channels = (ClusterVConnection **)ats_realloc(channels, n_channels * sizeof(ClusterVConnection *));
+
+    // Allocate ChannelData table entries
+    channel_data = (struct ChannelData **)ats_realloc(channel_data, n_channels * sizeof(struct ChannelData *));
+
+    for (int i = old_channels; i < n_channels; i++) {
+      if (local_channel(i)) {
+        if (i > LAST_DEDICATED_CHANNEL) {
+          channels[i] = (ClusterVConnection *) 1;       // mark as invalid
+          channel_data[i] = (struct ChannelData *)ats_malloc(sizeof(struct ChannelData));
+          memset(channel_data[i], 0, sizeof(struct ChannelData));
+          channel_data[i]->channel_number = i;
+          free_local_channels.enqueue(channel_data[i]);
+        } else {
+          channels[i] = NULL;
+          channel_data[i] = NULL;
+        }
+      } else {
+        channels[i] = NULL;
+        channel_data[i] = NULL;
+      }
+    }
+  }
+  return true;                  // OK
+}
+
+int
+ClusterHandler::alloc_channel(ClusterVConnection * vc, int requested)
+{
+  //
+  // Allocate a channel
+  //
+  struct ChannelData *cdp = 0;
+  int i = requested;
+
+  if (!i) {
+    int loops = 1;
+    do {
+      cdp = free_local_channels.dequeue();
+      if (!cdp) {
+        if (!check_channel(n_channels)) {
+          return -2;            // Limit exceeded
+        }
+      } else {
+        ink_assert(cdp == channel_data[cdp->channel_number]);
+        i = cdp->channel_number;
+        break;
+      }
+    } while (loops--);
+
+    ink_release_assert(i != 0); // required
+    ink_release_assert(channels[i] == (ClusterVConnection *) 1);        // required
+    Debug(CL_TRACE, "alloc_channel local chan=%d VC=%p", i, vc);
+
+  } else {
+    if (!check_channel(i)) {
+      return -2;                // Limit exceeded
+    }
+    if (channels[i]) {
+      Debug(CL_TRACE, "alloc_channel remote inuse chan=%d VC=%p", i, vc);
+      return -1;                // channel in use
+    } else {
+      Debug(CL_TRACE, "alloc_channel remote chan=%d VC=%p", i, vc);
+    }
+  }
+  channels[i] = vc;
+  vc->channel = i;
+  return i;
+}
+
+void
+ClusterHandler::free_channel(ClusterVConnection * vc)
+{
+  //
+  // Free a channel
+  //
+  int i = vc->channel;
+  if (i > LAST_DEDICATED_CHANNEL && channels[i] == vc) {
+    if (local_channel(i)) {
+      channels[i] = (ClusterVConnection *) 1;
+      free_local_channels.enqueue(channel_data[i]);
+      Debug(CL_TRACE, "free_channel local chan=%d VC=%p", i, vc);
+    } else {
+      channels[i] = 0;
+      Debug(CL_TRACE, "free_channel remote chan=%d VC=%p", i, vc);
+    }
+  }
+  vc->channel = 0;
+}
+
+int
+ClusterHandler::machine_down()
+{
+  char textbuf[sizeof("255.255.255.255:65535")];
+
+  if (dead) {
+    return EVENT_DONE;
+  }
+  //
+  // Looks like this machine dropped out of the cluster.
+  // Deal with it.
+  // Fatal read/write errors on the node to node connection along
+  // with failure of the cluster membership check in the periodic event
+  // result in machine_down().
+  //
+#ifdef LOCAL_CLUSTER_TEST_MODE
+  Note("machine down %u.%u.%u.%u:%d", DOT_SEPARATED(ip), port);
+#else
+  Note("machine down %u.%u.%u.%u:%d", DOT_SEPARATED(ip), id);
+#endif
+  machine_offline_APIcallout(ip);
+  snprintf(textbuf, sizeof(textbuf), "%hhu.%hhu.%hhu.%hhu:%d", DOT_SEPARATED(ip), port);
+  REC_SignalManager(REC_SIGNAL_MACHINE_DOWN, textbuf);
+  if (net_vc) {
+    net_vc->do_io(VIO::CLOSE);
+    net_vc = 0;
+  }
+  // Cancel pending cluster reads and writes
+  read.io_complete = -1;
+  write.io_complete = -1;
+
+  MUTEX_TAKE_LOCK(the_cluster_config_mutex, this_ethread());
+  ClusterConfiguration *c = this_cluster()->current_configuration();
+  machine->clusterHandlers[id] = NULL;
+  if ((--machine->now_connections == 0) && c->find(ip, port)) {
+    ClusterConfiguration *cc = configuration_remove_machine(c, machine);
+    CLUSTER_DECREMENT_DYN_STAT(CLUSTER_NODES_STAT);
+    this_cluster()->configurations.push(cc);
+    machine->dead = true;
+  }
+  MUTEX_UNTAKE_LOCK(the_cluster_config_mutex, this_ethread());
+  MachineList *cc = the_cluster_config();
+  if (cc && cc->find(ip, port) && connector) {
+    Debug(CL_NOTE, "cluster connect retry for %hhu.%hhu.%hhu.%hhu", DOT_SEPARATED(ip));
+    clusterProcessor.connect(ip, port, id);
+  }
+  return zombify();             // defer deletion of *this
+}
+
+int
+ClusterHandler::zombify(Event * /* e ATS_UNUSED */)
+{
+  //
+  // Node associated with *this is declared down, setup the event to cleanup
+  // and defer deletion of *this
+  //
+  dead = true;
+  if (cluster_periodic_event) {
+    cluster_periodic_event->cancel(this);
+    cluster_periodic_event = NULL;
+  }
+  clm->cancel_monitor();
+
+  SET_HANDLER((ClusterContHandler) & ClusterHandler::protoZombieEvent);
+  //
+  // At this point, allow the caller (either process_read/write to complete)
+  // prior to performing node down actions.
+  //
+  eventProcessor.schedule_in(this, HRTIME_SECONDS(1), ET_CLUSTER);
+  return EVENT_DONE;
+}
+
+int
+ClusterHandler::connectClusterEvent(int event, Event * e)
+{
+
+  if ((event == EVENT_IMMEDIATE) || (event == EVENT_INTERVAL)) {
+    //
+    // Attempt connect to target node and if successful, setup the event
+    // to initiate the node to node connection protocol.
+    // Initiated via ClusterProcessor::connect().
+    //
+    MachineList *cc = the_cluster_config();
+    if (!machine)
+      machine = new ClusterMachine(hostname, ip, port);
+#ifdef LOCAL_CLUSTER_TEST_MODE
+    if (!(cc && cc->find(ip, port))) {
+#else
+    if (this_cluster_machine()->ip == machine->ip || !(cc && cc->find(ip, port))) {
+#endif
+      if (this_cluster_machine()->ip != machine->ip)
+        Debug(CL_NOTE, "cluster connect aborted, machine %u.%u.%u.%u not in cluster", DOT_SEPARATED(machine->ip));
+      delete machine;
+      machine = NULL;
+      delete this;
+      return EVENT_DONE;
+    }
+    // Connect to cluster member
+    Debug(CL_NOTE, "connect_re from %u.%u.%u.%u to %u.%u.%u.%u",
+          DOT_SEPARATED(this_cluster_machine()->ip), DOT_SEPARATED(machine->ip));
+    ip = machine->ip;
+
+    NetVCOptions opt;
+    opt.socket_send_bufsize = cluster_send_buffer_size;
+    opt.socket_recv_bufsize = cluster_receive_buffer_size;
+    opt.sockopt_flags = cluster_sockopt_flags;
+    opt.packet_mark = cluster_packet_mark;
+    opt.packet_tos = cluster_packet_tos;
+    opt.etype = ET_CLUSTER;
+    opt.addr_binding = NetVCOptions::INTF_ADDR;
+    opt.local_ip = this_cluster_machine()->ip;
+
+    struct sockaddr_in addr;
+    ats_ip4_set(&addr, machine->ip,
+        htons(machine->cluster_port ? machine->cluster_port : cluster_port));
+
+    // TODO: Should we check the Action* returned here?
+    netProcessor.connect_re(this, ats_ip_sa_cast(&addr), &opt);
+    return EVENT_DONE;
+  } else {
+    if (event == NET_EVENT_OPEN) {
+      net_vc = (NetVConnection *) e;
+      SET_HANDLER((ClusterContHandler) & ClusterHandler::startClusterEvent);
+      eventProcessor.schedule_imm(this, ET_CLUSTER);
+      return EVENT_DONE;
+
+    } else {
+      eventProcessor.schedule_in(this, CLUSTER_MEMBER_DELAY);
+      return EVENT_CONT;
+    }
+  }
+}
+
+int
+ClusterHandler::startClusterEvent(int event, Event * e)
+{
+  char textbuf[sizeof("255.255.255.255:65535")];
+
+  // Perform the node to node connection establish protocol.
+
+  (void) event;
+  ink_assert(!read_vcs);
+  ink_assert(!write_vcs);
+
+  if (event == EVENT_IMMEDIATE) {
+    if (cluster_connect_state == ClusterHandler::CLCON_INITIAL) {
+      cluster_connect_state = ClusterHandler::CLCON_SEND_MSG;
+    } else {
+      ink_release_assert(!"startClusterEvent, EVENT_IMMEDIATE not expected");
+    }
+  } else {
+    ink_release_assert(event == EVENT_INTERVAL);
+  }
+
+  for (;;) {
+
+    switch (cluster_connect_state) {
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_INITIAL:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        ink_release_assert(!"Invalid state [CLCON_INITIAL]");
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_SEND_MSG:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        // Send initial message.
+#ifdef LOCAL_CLUSTER_TEST_MODE
+        nodeClusteringVersion._port = cluster_port;
+#endif
+        cluster_connect_state = ClusterHandler::CLCON_SEND_MSG_COMPLETE;
+        if (connector)
+          nodeClusteringVersion._id = id;
+        build_data_vector((char *) &nodeClusteringVersion, sizeof(nodeClusteringVersion), false);
+        if (!write.doIO()) {
+          // i/o not initiated, delay and retry
+          cluster_connect_state = ClusterHandler::CLCON_SEND_MSG;
+          eventProcessor.schedule_in(this, CLUSTER_PERIOD, ET_CLUSTER);
+          return EVENT_DONE;
+        }
+        break;
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_SEND_MSG_COMPLETE:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        if (write.io_complete) {
+          if ((write.io_complete < 0)
+              || ((size_t) write.did < sizeof(nodeClusteringVersion))) {
+            Debug(CL_NOTE, "unable to write to cluster node %u.%u.%u.%u: %d",
+                  DOT_SEPARATED(ip), write.io_complete_event);
+            cluster_connect_state = ClusterHandler::CLCON_ABORT_CONNECT;
+            break;              // goto next state
+          }
+          // Write OK, await message from peer node.
+          build_data_vector((char *) &clusteringVersion, sizeof(clusteringVersion), true);
+          cluster_connect_state = ClusterHandler::CLCON_READ_MSG;
+          break;
+        } else {
+          // Delay and check for i/o completion
+          eventProcessor.schedule_in(this, CLUSTER_PERIOD, ET_CLUSTER);
+          return EVENT_DONE;
+        }
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_READ_MSG:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        cluster_connect_state = ClusterHandler::CLCON_READ_MSG_COMPLETE;
+        if (!read.doIO()) {
+          // i/o not initiated, delay and retry
+          cluster_connect_state = ClusterHandler::CLCON_READ_MSG;
+          eventProcessor.schedule_in(this, CLUSTER_PERIOD, ET_CLUSTER);
+          return EVENT_DONE;
+        }
+        break;
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_READ_MSG_COMPLETE:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        if (read.io_complete) {
+          if (read.io_complete < 0) {
+            // Read error, abort connect
+            cluster_connect_state = ClusterHandler::CLCON_ABORT_CONNECT;
+            break;              // goto next state
+          }
+          if ((size_t) read.did < sizeof(clusteringVersion)) {
+            // Partial read, resume read.
+            cluster_connect_state = ClusterHandler::CLCON_READ_MSG;
+            break;
+          }
+          cluster_connect_state = ClusterHandler::CLCON_VALIDATE_MSG;
+          break;
+        } else {
+          // Delay and check for i/o completion
+          eventProcessor.schedule_in(this, CLUSTER_PERIOD, ET_CLUSTER);
+          return EVENT_DONE;
+        }
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_VALIDATE_MSG:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        int proto_major = -1;
+        int proto_minor = -1;
+
+        clusteringVersion.AdjustByteOrder();
+        /////////////////////////////////////////////////////////////////////////
+        // Determine the message protocol major version to use, by stepping down
+        // from current to the minimium level until a match is found.
+        // Derive the minor number as follows, if the current (major, minor)
+        // is the current node (major, minor) use the given minor number.
+        // Otherwise, minor number is zero.
+        /////////////////////////////////////////////////////////////////////////
+        for (int major = clusteringVersion._major; major >= clusteringVersion._min_major; --major) {
+          if ((major >= nodeClusteringVersion._min_major) && (major <= nodeClusteringVersion._major)) {
+            proto_major = major;
+          }
+        }
+        if (proto_major > 0) {
+          ///////////////////////////
+          // Compute minor version
+          ///////////////////////////
+          if (proto_major == clusteringVersion._major) {
+            proto_minor = clusteringVersion._minor;
+
+            if (proto_minor != nodeClusteringVersion._minor)
+              Warning("Different clustering minor versions (%d,%d) for node %u.%u.%u.%u, continuing",
+                      proto_minor, nodeClusteringVersion._minor, DOT_SEPARATED(ip));
+          } else {
+            proto_minor = 0;
+          }
+
+        } else {
+          Warning("Bad cluster major version range (%d-%d) for node %u.%u.%u.%u connect failed",
+                  clusteringVersion._min_major, clusteringVersion._major, DOT_SEPARATED(ip));
+          cluster_connect_state = ClusterHandler::CLCON_ABORT_CONNECT;
+          break;                // goto next state
+        }
+
+#ifdef LOCAL_CLUSTER_TEST_MODE
+        port = clusteringVersion._port & 0xffff;
+#endif
+        if (!connector)
+          id = clusteringVersion._id & 0xffff;
+
+        machine->msg_proto_major = proto_major;
+        machine->msg_proto_minor = proto_minor;
+
+        if (eventProcessor.n_threads_for_type[ET_CLUSTER] != num_of_cluster_threads) {
+          cluster_connect_state = ClusterHandler::CLCON_ABORT_CONNECT;
+          break;
+        }
+
+        thread = eventProcessor.eventthread[ET_CLUSTER][id % num_of_cluster_threads];
+        if (net_vc->thread == thread) {
+          cluster_connect_state = CLCON_CONN_BIND_OK;
+          break;
+        } else { 
+          cluster_connect_state = ClusterHandler::CLCON_CONN_BIND_CLEAR;
+        }
+      }
+
+    case ClusterHandler::CLCON_CONN_BIND_CLEAR:
+      {
+        UnixNetVConnection *vc = (UnixNetVConnection *)net_vc; 
+        MUTEX_TRY_LOCK(lock, vc->nh->mutex, e->ethread);
+        MUTEX_TRY_LOCK(lock1, vc->mutex, e->ethread);
+        if (lock && lock1) {
+          vc->ep.stop();
+          vc->nh->open_list.remove(vc);
+          vc->thread = NULL;
+          if (vc->nh->read_ready_list.in(vc))
+            vc->nh->read_ready_list.remove(vc);
+          if (vc->nh->write_ready_list.in(vc))
+            vc->nh->write_ready_list.remove(vc);
+          if (vc->read.in_enabled_list)
+            vc->nh->read_enable_list.remove(vc);
+          if (vc->write.in_enabled_list)
+            vc->nh->write_enable_list.remove(vc);
+
+          // CLCON_CONN_BIND handle in bind vc->thread (bind thread nh)
+          cluster_connect_state = ClusterHandler::CLCON_CONN_BIND;
+          thread->schedule_in(this, CLUSTER_PERIOD);
+          return EVENT_DONE;
+        } else {
+          // CLCON_CONN_BIND_CLEAR handle in origin vc->thread (origin thread nh)
+          vc->thread->schedule_in(this, CLUSTER_PERIOD);
+          return EVENT_DONE;
+        }
+      }
+
+    case ClusterHandler::CLCON_CONN_BIND:
+      {
+        // 
+        NetHandler *nh = get_NetHandler(e->ethread);
+        UnixNetVConnection *vc = (UnixNetVConnection *)net_vc; 
+        MUTEX_TRY_LOCK(lock, nh->mutex, e->ethread);
+        MUTEX_TRY_LOCK(lock1, vc->mutex, e->ethread);
+        if (lock && lock1) {
+          if (vc->read.in_enabled_list)
+            nh->read_enable_list.push(vc);
+          if (vc->write.in_enabled_list)
+            nh->write_enable_list.push(vc);
+
+          vc->nh = nh;
+          vc->thread = e->ethread;
+          PollDescriptor *pd = get_PollDescriptor(e->ethread);
+          if (vc->ep.start(pd, vc, EVENTIO_READ|EVENTIO_WRITE) < 0) {
+            cluster_connect_state = ClusterHandler::CLCON_DELETE_CONNECT;
+            break;                // goto next state
+          }
+
+          nh->open_list.enqueue(vc);
+          cluster_connect_state = ClusterHandler::CLCON_CONN_BIND_OK;
+        } else {
+          thread->schedule_in(this, CLUSTER_PERIOD);
+          return EVENT_DONE;
+        }
+      }
+
+    case ClusterHandler::CLCON_CONN_BIND_OK:
+      {
+        int failed = 0;
+
+        // include this node into the cluster configuration
+        MUTEX_TAKE_LOCK(the_cluster_config_mutex, this_ethread());
+        MachineList *cc = the_cluster_config();
+        if (cc && cc->find(ip, port)) {
+          ClusterConfiguration *c = this_cluster()->current_configuration();
+          ClusterMachine *m = c->find(ip, port);
+          
+          if (!m) { // this first connection
+            ClusterConfiguration *cconf = configuration_add_machine(c, machine);
+            CLUSTER_INCREMENT_DYN_STAT(CLUSTER_NODES_STAT);
+            this_cluster()->configurations.push(cconf);
+          } else {
+            // close new connection if old connections is exist
+            if (id >= m->num_connections || m->clusterHandlers[id]) {
+              failed = -2;
+              MUTEX_UNTAKE_LOCK(the_cluster_config_mutex, this_ethread());
+              goto failed;
+            }
+            machine = m;
+          }
+          machine->now_connections++;
+          machine->clusterHandlers[id] = this;
+          machine->dead = false;
+          dead = false;
+        } else {
+          Debug(CL_NOTE, "cluster connect aborted, machine %u.%u.%u.%u:%d not in cluster", DOT_SEPARATED(ip), port);
+          failed = -1;
+        }
+        MUTEX_UNTAKE_LOCK(the_cluster_config_mutex, this_ethread());
+failed:
+        if (failed) {
+          if (failed == -1) {
+            if (++configLookupFails <= CONFIG_LOOKUP_RETRIES) {
+              thread->schedule_in(this, CLUSTER_PERIOD);
+              return EVENT_DONE;
+            }
+          }
+          cluster_connect_state = ClusterHandler::CLCON_DELETE_CONNECT;
+          break;                // goto next state
+        }
+
+        this->needByteSwap = !clusteringVersion.NativeByteOrder();
+        machine_online_APIcallout(ip);
+
+        // Signal the manager
+        snprintf(textbuf, sizeof(textbuf), "%hhu.%hhu.%hhu.%hhu:%d", DOT_SEPARATED(ip), port);
+        REC_SignalManager(REC_SIGNAL_MACHINE_UP, textbuf);
+#ifdef LOCAL_CLUSTER_TEST_MODE
+        Note("machine up %hhu.%hhu.%hhu.%hhu:%d, protocol version=%d.%d",
+             DOT_SEPARATED(ip), port, clusteringVersion._major, clusteringVersion._minor);
+#else
+        Note("machine up %hhu.%hhu.%hhu.%hhu:%d, protocol version=%d.%d",
+             DOT_SEPARATED(ip), id, clusteringVersion._major, clusteringVersion._minor);
+#endif
+
+        read_vcs = new Queue<ClusterVConnectionBase, ClusterVConnectionBase::Link_read_link>[CLUSTER_BUCKETS];
+        write_vcs = new Queue<ClusterVConnectionBase, ClusterVConnectionBase::Link_write_link>[CLUSTER_BUCKETS];
+        SET_HANDLER((ClusterContHandler) & ClusterHandler::beginClusterEvent);
+
+        // enable schedule_imm() on i/o completion (optimization)
+        read.do_iodone_event = true;
+        write.do_iodone_event = true;
+
+        cluster_periodic_event = thread->schedule_every(this, -CLUSTER_PERIOD);
+
+        // Startup the periodic events to process entries in
+        //  external_incoming_control.
+
+        int procs_online = ink_number_of_processors();
+        int total_callbacks = min(procs_online, MAX_COMPLETION_CALLBACK_EVENTS);
+        for (int n = 0; n < total_callbacks; ++n) {
+          callout_cont[n] = new ClusterCalloutContinuation(this);
+          callout_events[n] = eventProcessor.schedule_every(callout_cont[n], COMPLETION_CALLBACK_PERIOD, ET_NET);
+        }
+
+        // Start cluster interconnect load monitoring
+
+        if (!clm) {
+          clm = new ClusterLoadMonitor(this);
+          clm->init();
+        }
+        return EVENT_DONE;
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_ABORT_CONNECT:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        if (connector) {
+          Debug(CL_NOTE, "cluster connect retry for %u.%u.%u.%u", DOT_SEPARATED(ip));
+          // check for duplicate cluster connect
+          clusterProcessor.connect(ip, port, id, true);
+        }
+        cluster_connect_state = ClusterHandler::CLCON_DELETE_CONNECT;
+        break;                  // goto next state
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    case ClusterHandler::CLCON_DELETE_CONNECT:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        // No references possible, so just delete it.
+        delete machine;
+        machine = NULL;
+        delete this;
+        Debug(CL_NOTE, "Failed cluster connect, deleting");
+        return EVENT_DONE;
+      }
+      ////////////////////////////////////////////////////////////////////////////
+    default:
+      ////////////////////////////////////////////////////////////////////////////
+      {
+        Warning("startClusterEvent invalid state %d", cluster_connect_state);
+        ink_release_assert(!"ClusterHandler::startClusterEvent invalid state");
+        return EVENT_DONE;
+      }
+
+    }                           // End of switch
+  }                             // End of for
+  return EVENT_DONE;
+}
+
+int
+ClusterHandler::beginClusterEvent(int /* event ATS_UNUSED */, Event * e)
+{
+  // Establish the main periodic Cluster event
+#ifdef CLUSTER_IMMEDIATE_NETIO
+  build_poll(false);
+#endif
+  SET_HANDLER((ClusterContHandler) & ClusterHandler::mainClusterEvent);
+  return handleEvent(EVENT_INTERVAL, e);
+}
+
+int
+ClusterHandler::zombieClusterEvent(int event, Event * e)
+{
+  //
+  // The ZOMBIE state is entered when the handler may still be referenced
+  // by short running tasks (one scheduling quanta).  The object is delayed
+  // after some unreasonably long (in comparison) time.
+  //
+  (void) event;
+  (void) e;
+  delete this;                  // I am out of here
+  return EVENT_DONE;
+}
+
+int
+ClusterHandler::protoZombieEvent(int /* event ATS_UNUSED */, Event * e)
+{
+  //
+  // Node associated with *this is declared down.
+  // After cleanup is complete, setup handler to delete *this
+  // after NO_RACE_DELAY
+  //
+  bool failed = false;
+  ink_hrtime delay = CLUSTER_MEMBER_DELAY * 5;
+  EThread *t = e ? e->ethread : this_ethread();
+  head_p item;
+
+  /////////////////////////////////////////////////////////////////
+  // Complete pending i/o operations
+  /////////////////////////////////////////////////////////////////
+  mainClusterEvent(EVENT_INTERVAL, e);
+
+  item.data = external_incoming_open_local.head.data;
+  if (TO_PTR(FREELIST_POINTER(item)) ||
+      delayed_reads.head || pw_write_descriptors_built
+      || pw_freespace_descriptors_built || pw_controldata_descriptors_built) {
+    // Operations still pending, retry later
+    if (e) {
+      e->schedule_in(delay);
+      return EVENT_CONT;
+    } else {
+      eventProcessor.schedule_in(this, delay, ET_CLUSTER);
+      return EVENT_DONE;
+    }
+  }
+  ///////////////////////////////////////////////////////////////
+  // Deallocate current read control data
+  ///////////////////////////////////////////////////////////////
+  IncomingControl *ic;
+  while ((ic = incoming_control.dequeue())) {
+    failed = true;
+    ic->mutex = NULL;
+    ic->freeall();
+  }
+
+  /////////////////////////////////////////////////////////////////
+  // Post error completion on all active read/write VC(s) and
+  // deallocate closed VC(s).
+  /////////////////////////////////////////////////////////////////
+  for (int i = 0; i < n_channels; i++) {
+    ClusterVConnection *vc = channels[i];
+    if (VALID_CHANNEL(vc)) {
+      if (!vc->closed && vc->read.vio.op == VIO::READ) {
+        MUTEX_TRY_LOCK(lock, vc->read.vio.mutex, t);
+        if (lock) {
+          cluster_signal_error_and_update(vc, &vc->read, 0);
+        } else {
+          failed = true;
+        }
+      }
+      vc = channels[i];
+      if (VALID_CHANNEL(vc)
+          && !vc->closed && vc->write.vio.op == VIO::WRITE) {
+        MUTEX_TRY_LOCK(lock, vc->write.vio.mutex, t);
+        if (lock) {
+          cluster_signal_error_and_update(vc, &vc->write, 0);
+        } else {
+          failed = true;
+        }
+      }
+      vc = channels[i];
+      if (VALID_CHANNEL(vc)) {
+        if (vc->closed) {
+          vc->ch = 0;
+          vc->write_list = 0;
+          vc->write_list_tail = 0;
+          vc->write_list_bytes = 0;
+          vc->write_bytes_in_transit = 0;
+          close_ClusterVConnection(vc);
+        } else {
+          failed = true;
+        }
+      }
+    }
+  }
+
+  ///////////////////////////////////////////////////////////////
+  // Empty the external_incoming_control queue before aborting
+  //   the completion callbacks.
+  ///////////////////////////////////////////////////////////////
+  item.data = external_incoming_control.head.data;
+  if (TO_PTR(FREELIST_POINTER(item)) == NULL) {
+    for (int n = 0; n < MAX_COMPLETION_CALLBACK_EVENTS; ++n) {
+      if (callout_cont[n]) {
+        MUTEX_TRY_LOCK(lock, callout_cont[n]->mutex, t);
+        if (lock) {
+          callout_events[n]->cancel(callout_cont[n]);
+          callout_events[n] = 0;
+          delete callout_cont[n];
+          callout_cont[n] = 0;
+        } else {
+          failed = true;
+        }
+      }
+    }
+  } else {
+    failed = true;
+  }
+
+  if (!failed) {
+    Debug("cluster_down", "ClusterHandler zombie [%u.%u.%u.%u]", DOT_SEPARATED(ip));
+    SET_HANDLER((ClusterContHandler) & ClusterHandler::zombieClusterEvent);
+    delay = NO_RACE_DELAY;
+  }
+  if (e) {
+    e->schedule_in(delay);
+    return EVENT_CONT;
+  } else {
+    eventProcessor.schedule_in(this, delay, ET_CLUSTER);
+    return EVENT_DONE;
+  }
+}
+
+int dump_verbose = 0;
+
+int
+ClusterHandler::compute_active_channels()
+{
+  ClusterHandler *ch = this;
+  int active_chans = 0;
+
+  for (int i = LAST_DEDICATED_CHANNEL + 1; i < ch->n_channels; i++) {
+    ClusterVConnection *vc = ch->channels[i];
+    if (VALID_CHANNEL(vc) && (vc->iov_map != CLUSTER_IOV_NOT_OPEN)) {
+      ++active_chans;
+      if (dump_verbose) {
+        printf("ch[%d] vc=0x%p remote_free=%d last_local_free=%d\n", i, vc,
+               vc->remote_free, vc->last_local_free);
+        printf("  r_bytes=%d r_done=%d w_bytes=%d w_done=%d\n",
+               (int)vc->read.vio.nbytes, (int)vc->read.vio.ndone,
+               (int)vc->write.vio.nbytes, (int)vc->write.vio.ndone);
+      }
+    }
+  }
+  return active_chans;
+}
+
+void
+ClusterHandler::dump_internal_data()
+{
+  if (!message_blk) {
+    message_blk = new_IOBufferBlock();
+    message_blk->alloc(MAX_IOBUFFER_SIZE);
+  }
+  int r;
+  int n = 0;
+  char *b = message_blk->data->data();
+  unsigned int b_size = message_blk->data->block_size();
+
+  r = snprintf(&b[n], b_size - n, "Host: %hhu.%hhu.%hhu.%hhu\n", DOT_SEPARATED(ip));
+  n += r;
+
+  r = snprintf(&b[n], b_size - n,
+               "chans: %d vc_writes: %" PRId64 " write_bytes: %" PRId64 "(d)+%" PRId64 "(c)=%" PRId64 "\n",
+               compute_active_channels(),
+               _vc_writes, _vc_write_bytes, _control_write_bytes, _vc_write_bytes + _control_write_bytes);
+
+  n += r;
+  r = snprintf(&b[n], b_size - n,
+               "dw: missed_lock: %d not_enabled: %d wait_remote_fill: %d no_active_vio: %d\n",
+               _dw_missed_lock, _dw_not_enabled, _dw_wait_remote_fill, _dw_no_active_vio);
+
+  n += r;
+  r = snprintf(&b[n], b_size - n,
+               "dw: not_enabled_or_no_write: %d set_data_pending: %d no_free_space: %d\n",
+               _dw_not_enabled_or_no_write, _dw_set_data_pending, _dw_no_free_space);
+
+  n += r;
+  r = snprintf(&b[n], b_size - n,
+               "fw: missed_lock: %d not_enabled: %d wait_remote_fill: %d no_active_vio: %d\n",
+               _fw_missed_lock, _fw_not_enabled, _fw_wait_remote_fill, _fw_no_active_vio);
+
+  n += r;
+  r = snprintf(&b[n], b_size - n, "fw: not_enabled_or_no_read: %d\n", _fw_not_enabled_or_no_read);
+
+  n += r;
+  r = snprintf(&b[n], b_size - n,
+               "rd(%d): st:%d rh:%d ahd:%d sd:%d rd:%d ad:%d sda:%d rda:%d awd:%d p:%d c:%d\n",
+               _process_read_calls, _n_read_start, _n_read_header, _n_read_await_header,
+               _n_read_setup_descriptor, _n_read_descriptor, _n_read_await_descriptor,
+               _n_read_setup_data, _n_read_data, _n_read_await_data, _n_read_post_complete, _n_read_complete);
+
+  n += r;
+  r = snprintf(&b[n], b_size - n,
+               "wr(%d): st:%d set:%d ini:%d wait:%d post:%d comp:%d\n",
+               _process_write_calls, _n_write_start, _n_write_setup, _n_write_initiate,
+               _n_write_await_completion, _n_write_post_complete, _n_write_complete);
+
+  n += r;
+  ink_release_assert((n + 1) <= BUFFER_SIZE_FOR_INDEX(MAX_IOBUFFER_SIZE));
+  Note("%s", b);
+  clear_cluster_stats();
+}
+
+void
+ClusterHandler::dump_write_msg(int res)
+{
+  // Debug support for inter cluster message trace
+  Alias32 x;
+  x.u32 = (uint32_t) ((struct sockaddr_in *)(net_vc->get_remote_addr()))->sin_addr.s_addr;
+
+  fprintf(stderr,
+          "[W] %hhu.%hhu.%hhu.%hhu SeqNo=%u, Cnt=%d, CntlCnt=%d Todo=%d, Res=%d\n",
+          x.byte[0], x.byte[1], x.byte[2], x.byte[3], write.sequence_number, write.msg.count, write.msg.control_bytes, write.to_do, res);
+  for (int i = 0; i < write.msg.count; ++i) {
+    fprintf(stderr, "   d[%i] Type=%d, Chan=%d, SeqNo=%d, Len=%u\n",
+            i, (write.msg.descriptor[i].type ? 1 : 0),
+            (int) write.msg.descriptor[i].channel,
+            (int) write.msg.descriptor[i].sequence_number, write.msg.descriptor[i].length);
+  }
+}
+
+void
+ClusterHandler::dump_read_msg()
+{
+  // Debug support for inter cluster message trace
+  Alias32 x;
+  x.u32 = (uint32_t) ((struct sockaddr_in *)(net_vc->get_remote_addr()))->sin_addr.s_addr;
+
+  fprintf(stderr, "[R] %hhu.%hhu.%hhu.%hhu  SeqNo=%u, Cnt=%d, CntlCnt=%d\n",
+          x.byte[0], x.byte[1], x.byte[2], x.byte[3], read.sequence_number, read.msg.count, read.msg.control_bytes);
+  for (int i = 0; i < read.msg.count; ++i) {
+    fprintf(stderr, "   d[%i] Type=%d, Chan=%d, SeqNo=%d, Len=%u\n",
+            i, (read.msg.descriptor[i].type ? 1 : 0),
+            (int) read.msg.descriptor[i].channel,
+            (int) read.msg.descriptor[i].sequence_number, read.msg.descriptor[i].length);
+  }
+}
+
+// End of  ClusterHandlerBase.cc
diff --git a/iocore/cluster/ClusterHash.cc b/iocore/cluster/ClusterHash.cc
new file mode 100644
index 00000000..08dc0d11
--- /dev/null
+++ b/iocore/cluster/ClusterHash.cc
@@ -0,0 +1,175 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterHash.cc
+ ****************************************************************************/
+#include "P_Cluster.h"
+
+//
+// Configuration of the cluster hash function
+//
+// machineClusterHash  - whether or not the random number generators
+//                       are based on the machines or on the buckets
+// boundClusterHash    - whether or not we force a fixed number of buckets
+//                       to map to each machine
+// randClusterHash     - whether or not to use system rand(3C)
+//                       or a simple linear congruence random number
+//                       generator
+//
+// This produces very stable results (computation time ~.6 seconds) on
+// a UltraSparc at 143Mz.
+// These are only global for testing purposes.
+//
+bool machineClusterHash = true;
+bool boundClusterHash = false;
+bool randClusterHash = false;
+
+// This produces better speed for large numbers of machines > 18
+//
+// bool machineClusterHash = false;
+// bool boundClusterHash = true;
+// bool randClusterHash = true;
+
+
+
+//
+// Cluster Hash Table
+//
+// see Memo.ClusterHash for details
+//
+
+
+//
+// Linear Congruence Random number generator
+
+// Not very random, but it generates all the numbers
+// within 1 period which is all we need.
+//
+inline unsigned short
+next_rnd15(unsigned int *p)
+{
+  unsigned int seed = *p;
+  seed = 1103515145 * seed + 12345;
+  seed = seed & 0x7FFF;
+  *p = seed;
+  return seed;
+}
+
+//
+// Build the hash table
+// This function is relatively expensive.
+// It costs: (g++ at -02)
+// ~.04 CPU seconds on a 143MHz Ultra 1 at 1 node
+// ~.3 CPU seconds on a 143MHz Ultra 1 at 31 nodes
+// Overall it is roughly linear in the number of nodes.
+//
+void
+build_hash_table_machine(ClusterConfiguration * c)
+{
+  int left = CLUSTER_HASH_TABLE_SIZE;
+  int m = 0;
+  int i = 0;
+  unsigned int rnd[CLUSTER_MAX_MACHINES];
+  unsigned int mach[CLUSTER_MAX_MACHINES];
+  int total = CLUSTER_HASH_TABLE_SIZE;
+
+  for (i = 0; i < c->n_machines; i++) {
+    int mine = total / (c->n_machines - i);
+    mach[i] = mine;
+    total -= mine;
+  }
+
+  // seed the random number generator with the ip address
+  // do a little xor folding to get it into 15 bits
+  //
+  for (m = 0; m < c->n_machines; m++)
+    rnd[m] = (((c->machines[m]->ip >> 15) & 0x7FFF) ^ (c->machines[m]->ip & 0x7FFF))
+      ^ (c->machines[m]->ip >> 30);
+
+  // Initialize the table to "empty"
+  //
+  for (i = 0; i < CLUSTER_HASH_TABLE_SIZE; i++)
+    c->hash_table[i] = 255;
+
+  // Until we have hit every element of the table, give each
+  // machine a chance to select it's favorites.
+  //
+  m = 0;
+  while (left) {
+    if (!mach[m] && boundClusterHash) {
+      m = (m + 1) % c->n_machines;
+      continue;
+    }
+    do {
+      if (randClusterHash) {
+        i = ink_rand_r(&rnd[m]) % CLUSTER_HASH_TABLE_SIZE;
+      } else
+        i = next_rand(&rnd[m]) % CLUSTER_HASH_TABLE_SIZE;
+    } while (c->hash_table[i] != 255);
+    mach[m]--;
+    c->hash_table[i] = m;
+    left--;
+    m = (m + 1) % c->n_machines;
+  }
+}
+
+static void
+build_hash_table_bucket(ClusterConfiguration * c)
+{
+  int i = 0;
+  unsigned int rnd[CLUSTER_HASH_TABLE_SIZE];
+  unsigned int mach[CLUSTER_MAX_MACHINES];
+  int total = CLUSTER_HASH_TABLE_SIZE;
+
+  for (i = 0; i < c->n_machines; i++) {
+    int mine = total / (c->n_machines - i);
+    mach[i] = mine;
+    total -= mine;
+  }
+
+  for (i = 0; i < CLUSTER_HASH_TABLE_SIZE; i++)
+    rnd[i] = i;
+
+  for (i = 0; i < CLUSTER_HASH_TABLE_SIZE; i++) {
+    unsigned char x = 0;
+    do {
+      if (randClusterHash) {
+        x = ink_rand_r(&rnd[i]) % CLUSTER_MAX_MACHINES;
+      } else
+        x = next_rand(&rnd[i]) % CLUSTER_MAX_MACHINES;
+    } while (x >= c->n_machines || (!mach[x] && boundClusterHash));
+    mach[x]--;
+    c->hash_table[i] = x;
+  }
+}
+
+void
+build_cluster_hash_table(ClusterConfiguration * c)
+{
+  if (machineClusterHash)
+    build_hash_table_machine(c);
+  else
+    build_hash_table_bucket(c);
+}
diff --git a/iocore/cluster/ClusterLib.cc b/iocore/cluster/ClusterLib.cc
new file mode 100644
index 00000000..1d813829
--- /dev/null
+++ b/iocore/cluster/ClusterLib.cc
@@ -0,0 +1,366 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterLib.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+//
+// cluster_xxx() functions dealing with scheduling of Virtual Connections
+// in the read and write data buckets (read_vcs, write_vcs).
+//
+// In contrast to the net versions, these versions simply change the priority
+// scheduling only occurs after they move into the data_bucket.
+//
+void
+cluster_schedule(ClusterHandler * ch, ClusterVConnection * vc, ClusterVConnState * ns)
+{
+  //
+  // actually schedule into new bucket
+  //
+  int new_bucket = ch->cur_vcs;
+
+  if (vc->type == VC_NULL)
+    vc->type = VC_CLUSTER;
+  if (ns == &vc->read) {
+    ClusterVC_enqueue_read(ch->read_vcs[new_bucket], vc);
+  } else {
+    ClusterVC_enqueue_write(ch->write_vcs[new_bucket], vc);
+  }
+}
+
+void
+cluster_reschedule_offset(ClusterHandler * ch, ClusterVConnection * vc, ClusterVConnState * ns, int offset)
+{
+  if (ns == &vc->read) {
+    if (vc->read.queue)
+      ClusterVC_remove_read(vc);
+    ClusterVC_enqueue_read(ch->read_vcs[(ch->cur_vcs + offset) % CLUSTER_BUCKETS], vc);
+  } else {
+    if (vc->write.queue)
+      ClusterVC_remove_write(vc);
+    ClusterVC_enqueue_write(ch->write_vcs[(ch->cur_vcs + offset) % CLUSTER_BUCKETS], vc);
+  }
+}
+
+//
+//  iov_memcpy() -- struct iov based memcpy()
+//
+int
+iov_memcpy(IOVec * iov, int n_iov, int did, char *bb_arg)
+{
+  char *bb = bb_arg;
+  for (int i = 0; i < n_iov; i++) {
+    int len = iov[i].iov_len;
+    did -= len;
+    if (did < 0) {
+      // fprintf(stderr,"iov_memcpy %X %d\n",iov[i].iov_base+(len+did),-did);
+      memcpy(bb, (char *) iov[i].iov_base + (len + did), -did);
+      bb += -did;
+      did = 0;
+    }
+  }
+  return bb - bb_arg;
+}
+
+/*************************************************************************/
+// ClusterVCToken member functions (Public Class)
+/*************************************************************************/
+
+// global sequence number for building tokens
+unsigned int cluster_sequence_number = 0;
+
+void
+ClusterVCToken::alloc()
+{
+#ifdef LOCAL_CLUSTER_TEST_MODE
+  ip_created = this_cluster_machine()->cluster_port;
+#else
+  ip_created = this_cluster_machine()->ip;
+#endif
+  sequence_number = ink_atomic_increment((int *) &cluster_sequence_number, 1);
+}
+
+///////////////////////////////////////////
+// IOBufferBlock manipulation routines
+///////////////////////////////////////////
+
+IOBufferBlock *
+clone_IOBufferBlockList(IOBufferBlock * b, int start_off, int n, IOBufferBlock ** b_tail)
+{
+  ////////////////////////////////////////////////////////////////
+  // Create a clone list of IOBufferBlock(s) where the sum
+  // of all block read_avail is 'n'.  The given source list
+  // must contain at least 'n' read avail bytes.
+  ////////////////////////////////////////////////////////////////
+  int64_t nbytes = n;
+  int64_t block_read_avail;
+  int64_t bytes_to_skip = start_off;
+  IOBufferBlock *bsrc = b;
+  IOBufferBlock *bclone = 0;
+  IOBufferBlock *bclone_head = 0;
+
+  while (bsrc && nbytes) {
+    // Skip zero length blocks
+    if (!bsrc->read_avail()) {
+      bsrc = bsrc->next;
+      continue;
+    }
+
+    if (bclone_head) {
+      bclone->next = bsrc->clone();
+      bclone = bclone->next;
+    } else {
+
+      // Skip bytes already processed
+      if (bytes_to_skip) {
+        bytes_to_skip -= bsrc->read_avail();
+
+        if (bytes_to_skip < 0) {
+          // Skip bytes in current block
+          bclone_head = bsrc->clone();
+          bclone_head->consume(bsrc->read_avail() + bytes_to_skip);
+          bclone = bclone_head;
+          bytes_to_skip = 0;
+
+        } else {
+          // Skip entire block
+          bsrc = bsrc->next;
+          continue;
+        }
+      } else {
+        bclone_head = bsrc->clone();
+        bclone = bclone_head;
+      }
+    }
+    block_read_avail = bclone->read_avail();
+    nbytes -= block_read_avail;
+    if (nbytes < 0) {
+      // Adjust read_avail in clone to match nbytes
+      bclone->fill(nbytes);
+      nbytes = 0;
+    }
+    bsrc = bsrc->next;
+  }
+  ink_release_assert(!nbytes);
+  *b_tail = bclone;
+  return bclone_head;
+}
+
+IOBufferBlock *
+consume_IOBufferBlockList(IOBufferBlock * b, int64_t n)
+{
+  IOBufferBlock *b_remainder = 0;
+  int64_t nbytes = n;
+
+  while (b) {
+    nbytes -= b->read_avail();
+    if (nbytes <= 0) {
+      if (nbytes < 0) {
+        // Consumed a partial block, clone remainder
+        b_remainder = b->clone();
+        b->fill(nbytes);        // make read_avail match nbytes
+        b_remainder->consume(b->read_avail());  // clone for remaining bytes
+        b_remainder->next = b->next;
+        b->next = 0;
+        nbytes = 0;
+
+      } else {
+        // Consumed entire block
+        b_remainder = b->next;
+      }
+      break;
+
+    } else {
+      b = b->next;
+    }
+  }
+  ink_release_assert(nbytes == 0);
+  return b_remainder;           // return remaining blocks
+}
+
+int64_t
+bytes_IOBufferBlockList(IOBufferBlock * b, int64_t read_avail_bytes)
+{
+  int64_t n = 0;;
+
+  while (b) {
+    if (read_avail_bytes) {
+      n += b->read_avail();
+    } else {
+      n += b->write_avail();
+    }
+    b = b->next;
+  }
+  return n;
+}
+
+
+//////////////////////////////////////////////////////
+// Miscellaneous test code
+//////////////////////////////////////////////////////
+#if TEST_PARTIAL_READS
+//
+// Test code which mimic the network slowdown
+//
+int
+partial_readv(int fd, IOVec * iov, int n_iov, int seq)
+{
+  IOVec tiov[16];
+  for (int i = 0; i < n_iov; i++)
+    tiov[i] = iov[i];
+  int tn_iov = n_iov;
+  int rnd = seq;
+  int element = rand_r((unsigned int *) &rnd);
+  element = element % n_iov;
+  int byte = rand_r((unsigned int *) &rnd);
+  byte = byte % iov[element].iov_len;
+  int stop = rand_r((unsigned int *) &rnd);
+  if (!(stop % 3)) {            // 33% chance
+    tn_iov = element + 1;
+    tiov[element].iov_len = byte;
+    if (!byte)
+      tn_iov--;
+    if (!tn_iov) {
+      tiov[element].iov_len = 1;
+      tn_iov++;
+    }
+    // printf("partitial read %d [%d]\n",tn_iov,tiov[element].iov_len);
+  }
+  return socketManager.read_vector(fd, &tiov[0], tn_iov);
+}
+#endif // TEST_PARTIAL_READS
+
+#if TEST_PARTIAL_WRITES
+//
+// Test code which mimic the network backing up (too little buffering)
+//
+int
+partial_writev(int fd, IOVec * iov, int n_iov, int seq)
+{
+  int rnd = seq;
+  int sum = 0;
+  int i = 0;
+    for (i = 0; i < n_iov; i++) {
+      int l = iov[i].iov_len;
+      int r = rand_r((unsigned int *) &rnd);
+      if ((r >> 4) & 1) {
+        l = ((unsigned int) rand_r((unsigned int *) &rnd)) % iov[i].iov_len;
+        if (!l) {
+          l = iov[i].iov_len;
+        }
+      }
+      ink_assert(l <= iov[i].iov_len);
+      fprintf(stderr, "writing %d: [%d] &%X %d of %d\n", seq, i, iov[i].iov_base, l, iov[i].iov_len);
+      int res = socketManager.write(fd, iov[i].iov_base, l);
+      if (res < 0) {
+        return res;
+      }
+      sum += res;
+      if (res != iov[i].iov_len) {
+        return sum;
+      }
+    }
+    return sum;
+}
+#endif // TEST_PARTIAL_WRITES
+
+////////////////////////////////////////////////////////////////////////
+// Global periodic system dump functions
+////////////////////////////////////////////////////////////////////////
+#ifdef ENABLE_TIME_TRACE
+int inmsg_time_dist[TIME_DIST_BUCKETS_SIZE];
+int inmsg_events = 0;
+
+int cluster_send_time_dist[TIME_DIST_BUCKETS_SIZE];
+int cluster_send_events = 0;
+#endif // ENABLE_TIME_TRACE
+
+int time_trace = 0;
+
+void
+dump_time_buckets()
+{
+#ifdef ENABLE_TIME_TRACE
+  printf("\nremote ops:\n");
+  for (int i = 0; i < TIME_DIST_BUCKETS_SIZE; ++i) {
+    printf("%d ", rmt_callback_time_dist[i]);
+    rmt_callback_time_dist[i] = 0;
+  }
+  printf("\nremote lookup ops:\n");
+  for (int j = 0; j < TIME_DIST_BUCKETS_SIZE; ++j) {
+    printf("%d ", lkrmt_callback_time_dist[j]);
+    lkrmt_callback_time_dist[j] = 0;
+  }
+  printf("\nlocal cache ops:\n");
+  for (int k = 0; k < TIME_DIST_BUCKETS_SIZE; ++k) {
+    printf("%d ", callback_time_dist[k]);
+    callback_time_dist[k] = 0;
+  }
+  printf("\nphysical cache ops:\n");
+  for (int l = 0; l < TIME_DIST_BUCKETS_SIZE; ++l) {
+    printf("%d ", cdb_callback_time_dist[l]);
+    cdb_callback_time_dist[l] = 0;
+  }
+  printf("\nin message ops:\n");
+  for (int m = 0; m < TIME_DIST_BUCKETS_SIZE; ++m) {
+    printf("%d ", inmsg_time_dist[m]);
+    inmsg_time_dist[m] = 0;
+  }
+  printf("\ncluster send time:\n");
+  for (int n = 0; n < TIME_DIST_BUCKETS_SIZE; ++n) {
+    printf("%d ", cluster_send_time_dist[n]);
+    cluster_send_time_dist[n] = 0;
+  }
+#endif // ENABLE_TIME_TRACE
+}
+
+GlobalClusterPeriodicEvent::GlobalClusterPeriodicEvent():Continuation(new_ProxyMutex())
+{
+  SET_HANDLER((GClusterPEHandler) & GlobalClusterPeriodicEvent::calloutEvent);
+}
+
+GlobalClusterPeriodicEvent::~GlobalClusterPeriodicEvent()
+{
+  _thisCallout->cancel(this);
+}
+
+void
+GlobalClusterPeriodicEvent::init()
+{
+  _thisCallout = eventProcessor.schedule_every(this, HRTIME_SECONDS(10), ET_CALL);
+}
+
+int
+GlobalClusterPeriodicEvent::calloutEvent(Event * /* e ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  if (time_trace) {
+    dump_time_buckets();
+  }
+  clusterProcessor.compute_cluster_mode();
+  return EVENT_CONT;
+}
+
+// End of ClusterLib.cc
diff --git a/iocore/cluster/ClusterLoadMonitor.cc b/iocore/cluster/ClusterLoadMonitor.cc
new file mode 100644
index 00000000..a3a267e5
--- /dev/null
+++ b/iocore/cluster/ClusterLoadMonitor.cc
@@ -0,0 +1,318 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterLoadMonitor.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+int
+  ClusterLoadMonitor::cf_monitor_enabled;
+int
+  ClusterLoadMonitor::cf_ping_message_send_msec_interval;
+int
+  ClusterLoadMonitor::cf_num_ping_response_buckets;
+int
+  ClusterLoadMonitor::cf_msecs_per_ping_response_bucket;
+int
+  ClusterLoadMonitor::cf_ping_latency_threshold_msecs;
+int
+  ClusterLoadMonitor::cf_cluster_load_compute_msec_interval;
+int
+  ClusterLoadMonitor::cf_cluster_periodic_msec_interval;
+int
+  ClusterLoadMonitor::cf_ping_history_buf_length;
+int
+  ClusterLoadMonitor::cf_cluster_load_clear_duration;
+int
+  ClusterLoadMonitor::cf_cluster_load_exceed_duration;
+
+ClusterLoadMonitor::ClusterLoadMonitor(ClusterHandler * ch)
+:Continuation(0), ch(ch), ping_history_buf_head(0),
+periodic_action(0), cluster_overloaded(0), cancel_periodic(0),
+cluster_load_msg_sequence_number(0), cluster_load_msg_start_sequence_number(0)
+{
+  mutex = this->ch->mutex;
+  SET_HANDLER(&ClusterLoadMonitor::cluster_load_periodic);
+
+  ping_message_send_msec_interval = cf_ping_message_send_msec_interval ? cf_ping_message_send_msec_interval : 100;
+  Debug("cluster_monitor", "ping_message_send_msec_interval=%d", ping_message_send_msec_interval);
+
+  num_ping_response_buckets = cf_num_ping_response_buckets ? cf_num_ping_response_buckets : 100;
+  Debug("cluster_monitor", "num_ping_response_buckets=%d", num_ping_response_buckets);
+
+  msecs_per_ping_response_bucket = cf_msecs_per_ping_response_bucket ? cf_msecs_per_ping_response_bucket : 50;
+  Debug("cluster_monitor", "msecs_per_ping_response_bucket=%d", msecs_per_ping_response_bucket);
+
+  ping_latency_threshold_msecs = cf_ping_latency_threshold_msecs ? cf_ping_latency_threshold_msecs : 500;
+  Debug("cluster_monitor", "ping_latency_threshold_msecs=%d", ping_latency_threshold_msecs);
+
+  cluster_load_compute_msec_interval =
+    cf_cluster_load_compute_msec_interval ? cf_cluster_load_compute_msec_interval : 5000;
+  Debug("cluster_monitor", "cluster_load_compute_msec_interval=%d", cluster_load_compute_msec_interval);
+
+  cluster_periodic_msec_interval = cf_cluster_periodic_msec_interval ? cf_cluster_periodic_msec_interval : 100;
+  Debug("cluster_monitor", "cluster_periodic_msec_interval=%d", cluster_periodic_msec_interval);
+
+  ping_history_buf_length = cf_ping_history_buf_length ? cf_ping_history_buf_length : 120;
+  Debug("cluster_monitor", "ping_history_buf_length=%d", ping_history_buf_length);
+
+  cluster_load_clear_duration = cf_cluster_load_clear_duration ? cf_cluster_load_clear_duration : 24;
+  Debug("cluster_monitor", "cluster_load_clear_duration=%d", cluster_load_clear_duration);
+
+  cluster_load_exceed_duration = cf_cluster_load_exceed_duration ? cf_cluster_load_exceed_duration : 4;
+  Debug("cluster_monitor", "cluster_load_exceed_duration=%d", cluster_load_exceed_duration);
+
+  int nbytes = sizeof(int) * num_ping_response_buckets;
+  ping_response_buckets = (int *)ats_malloc(nbytes);
+  memset((char *) ping_response_buckets, 0, nbytes);
+
+  nbytes = sizeof(ink_hrtime) * ping_history_buf_length;
+  ping_response_history_buf = (ink_hrtime *)ats_malloc(nbytes);
+  memset((char *) ping_response_history_buf, 0, nbytes);
+
+  last_ping_message_sent = HRTIME_SECONDS(0);
+  last_cluster_load_compute = HRTIME_SECONDS(0);
+}
+
+void
+ClusterLoadMonitor::init()
+{
+  periodic_action = eventProcessor.schedule_every(this, HRTIME_MSECONDS(cluster_periodic_msec_interval), ET_CALL);
+}
+
+ClusterLoadMonitor::~ClusterLoadMonitor()
+{
+  //
+  // Note: Since the ClusterLoadMonitor is only associated
+  //       with the ClusterHandler, a periodic callback operating
+  //       on a freed ClusterLoadMonitor is not possible, since the
+  //       ClusterHandler is only deleted after several minutes.  Allowing
+  //       plenty of time for the periodic to cancel itself via the
+  //       "cancel_periodic" flag.
+  //
+  ink_release_assert(!periodic_action);
+  if (ping_response_buckets) {
+    ats_free(ping_response_buckets);
+    ping_response_buckets = 0;
+  }
+  if (ping_response_history_buf) {
+    ats_free(ping_response_history_buf);
+    ping_response_history_buf = 0;
+  }
+}
+
+void
+ClusterLoadMonitor::cancel_monitor()
+{
+  if (!cancel_periodic)
+    cancel_periodic = 1;
+}
+
+bool ClusterLoadMonitor::is_cluster_overloaded()
+{
+  return (cluster_overloaded ? true : false);
+}
+
+void
+ClusterLoadMonitor::compute_cluster_load()
+{
+  // Compute ping message latency by scanning the response time
+  // buckets and averaging the results.
+
+  int n;
+  int sum = 0;
+  int entries = 0;
+  int n_bucket = 0;
+
+  for (n = 0; n < num_ping_response_buckets; ++n) {
+    if (ping_response_buckets[n]) {
+      entries += ping_response_buckets[n];
+      sum += (ping_response_buckets[n] * (n + 1));
+    }
+    ping_response_buckets[n] = 0;
+  }
+  if (entries) {
+    n_bucket = sum / entries;
+  } else {
+    n_bucket = 1;
+  }
+  ink_hrtime current_ping_latency = HRTIME_MSECONDS(n_bucket * msecs_per_ping_response_bucket);
+
+  // Invalidate messages associated with this sample interval
+  cluster_load_msg_start_sequence_number = cluster_load_msg_sequence_number;
+
+  // Log ping latency in history buffer.
+
+  ping_response_history_buf[ping_history_buf_head++] = current_ping_latency;
+  ping_history_buf_head = ping_history_buf_head % ping_history_buf_length;
+
+  // Determine the current state of the cluster interconnect using
+  // the configured limits.  We determine the state as follows.
+  //   if (cluster overloaded)
+  //     Determine if it is still in the overload state by examining
+  //     the last 'cluster_load_clear_duration' entries in the history
+  //     buffer and declaring it not overloaded if none of the entries
+  //     exceed the threshold.
+  //   else
+  //     Determine if it is now in the overload state by examining
+  //     the last 'cluster_load_exceed_duration' entries in the history
+  //     buffer and declaring it overloaded if all of the entries
+  //     exceed the threshold.
+
+  int start, end;
+  ink_hrtime ping_latency_threshold = HRTIME_MSECONDS(ping_latency_threshold_msecs);
+
+  start = ping_history_buf_head - 1;
+  if (start < 0)
+    start += ping_history_buf_length;
+  end = start;
+
+  if (cluster_overloaded) {
+    end -= (cluster_load_clear_duration <= ping_history_buf_length ?
+            cluster_load_clear_duration : ping_history_buf_length);
+  } else {
+    end -= (cluster_load_exceed_duration <= ping_history_buf_length ?
+            cluster_load_exceed_duration : ping_history_buf_length);
+  }
+  if (end < 0)
+    end += ping_history_buf_length;
+
+  int threshold_clear = 0;
+  int threshold_exceeded = 0;
+  do {
+    if (ping_response_history_buf[start] >= ping_latency_threshold)
+      ++threshold_exceeded;
+    else
+      ++threshold_clear;
+    if (--start < 0)
+      start = start + ping_history_buf_length;
+  } while (start != end);
+
+  if (cluster_overloaded) {
+    if (threshold_exceeded == 0)
+      cluster_overloaded = 0;
+  } else {
+    if (threshold_exceeded && (threshold_clear == 0))
+      cluster_overloaded = 1;
+  }
+  Debug("cluster_monitor",
+        "[%u.%u.%u.%u] overload=%d, clear=%d, exceed=%d, latency=%d",
+        DOT_SEPARATED(this->ch->machine->ip), cluster_overloaded, threshold_clear, threshold_exceeded, n_bucket);
+}
+
+void
+ClusterLoadMonitor::note_ping_response_time(ink_hrtime response_time, int sequence_number)
+{
+#ifdef CLUSTER_TOMCAT
+  ProxyMutex *mutex = this->ch->mutex;     // hack for stats
+#endif
+
+  CLUSTER_SUM_DYN_STAT(CLUSTER_PING_TIME_STAT, response_time);
+  int bucket = (int)
+    (response_time / HRTIME_MSECONDS(msecs_per_ping_response_bucket));
+  Debug("cluster_monitor_ping", "[%u.%u.%u.%u] ping: %d %d", DOT_SEPARATED(this->ch->machine->ip), bucket, sequence_number);
+
+  if (bucket >= num_ping_response_buckets)
+    bucket = num_ping_response_buckets - 1;
+  ink_atomic_increment(&ping_response_buckets[bucket], 1);
+}
+
+void
+ClusterLoadMonitor::recv_cluster_load_msg(cluster_load_ping_msg * m)
+{
+  // We have received back our ping message.
+  ink_hrtime now = ink_get_hrtime();
+
+  if ((now >= m->send_time)
+      && ((m->sequence_number >= cluster_load_msg_start_sequence_number)
+          && (m->sequence_number < cluster_load_msg_sequence_number))) {
+    // Valid message, note response time.
+    note_ping_response_time(now - m->send_time, m->sequence_number);
+  }
+}
+
+void
+ClusterLoadMonitor::cluster_load_ping_rethandler(ClusterHandler *ch, void *data, int len)
+{
+  // Global cluster load ping message return handler which
+  // dispatches the result to the class specific handler.
+
+  if (ch) {
+    if (len == sizeof(struct cluster_load_ping_msg)) {
+      struct cluster_load_ping_msg m;
+      memcpy((void *) &m, data, len);   // unmarshal
+
+      if (m.monitor && (m.magicno == cluster_load_ping_msg::CL_MSG_MAGICNO)
+          && (m.version == cluster_load_ping_msg::CL_MSG_VERSION)) {
+        m.monitor->recv_cluster_load_msg(&m);
+      }
+    }
+  }
+}
+
+void
+ClusterLoadMonitor::send_cluster_load_msg(ink_hrtime current_time)
+{
+  // Build and send cluster load ping message.
+
+  struct cluster_load_ping_msg m(this);
+
+  m.sequence_number = cluster_load_msg_sequence_number++;
+  m.send_time = current_time;
+  cluster_ping(ch, cluster_load_ping_rethandler, (void *) &m, sizeof(m));
+}
+
+int
+ClusterLoadMonitor::cluster_load_periodic(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  // Perform periodic cluster load computation actions.
+
+  if (cancel_periodic) {
+    periodic_action->cancel();
+    periodic_action = 0;
+    return EVENT_DONE;
+  }
+
+  if (!cf_monitor_enabled) {
+    return EVENT_CONT;
+  }
+  // Generate periodic ping messages.
+
+  ink_hrtime current_time = ink_get_hrtime();
+  if ((current_time - last_ping_message_sent) > HRTIME_MSECONDS(ping_message_send_msec_interval)) {
+    send_cluster_load_msg(current_time);
+    last_ping_message_sent = current_time;
+  }
+  // Compute cluster load.
+
+  if ((current_time - last_cluster_load_compute) > HRTIME_MSECONDS(cluster_load_compute_msec_interval)) {
+    compute_cluster_load();
+    last_cluster_load_compute = current_time;
+  }
+  return EVENT_CONT;
+}
+
+// End of ClusterLoadMonitor.cc
diff --git a/iocore/cluster/ClusterMachine.cc b/iocore/cluster/ClusterMachine.cc
new file mode 100644
index 00000000..244d8d64
--- /dev/null
+++ b/iocore/cluster/ClusterMachine.cc
@@ -0,0 +1,284 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Machine.cc
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include <unistd.h>
+#include "P_Cluster.h"
+#include "I_Layout.h"
+extern int num_of_cluster_threads;
+
+MachineList *machines_config = NULL;
+MachineList *cluster_config = NULL;
+
+ProxyMutex *the_cluster_config_mutex;
+
+static ClusterMachine *cluster_machine;
+
+MachineList *
+the_cluster_machines_config()
+{
+  return machines_config;
+}
+
+MachineList *
+the_cluster_config()
+{
+  return cluster_config;
+}
+
+ClusterMachine *
+this_cluster_machine()
+{
+  return cluster_machine;
+}
+
+void
+create_this_cluster_machine()
+{
+  the_cluster_config_mutex = new_ProxyMutex();
+  cluster_machine = new ClusterMachine;
+}
+
+ClusterMachine::ClusterMachine(char *ahostname, unsigned int aip, int aport)
+  : dead(false),
+    hostname(ahostname),
+    ip(aip),
+    cluster_port(aport),
+    num_connections(0),
+    now_connections(0),
+    free_connections(0),
+    rr_count(0),
+    msg_proto_major(0),
+    msg_proto_minor(0),
+    clusterHandlers(0)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_MACHINES_ALLOCATED_STAT);
+  if (!aip) {
+    char localhost[1024];
+    if (!ahostname) {
+      ink_release_assert(!gethostname(localhost, 1023));
+      ahostname = localhost;
+    }
+    hostname = ats_strdup(ahostname);
+
+    // If we are running if the manager, it the our ip address for
+    //   clustering from the manager, so the manager can control what
+    //   interface we cluster over.  Otherwise figure it out ourselves
+#ifdef LOCAL_CLUSTER_TEST_MODE
+    ip = inet_addr("127.0.0.1");
+#else
+#ifdef CLUSTER_TEST
+    int clustering_enabled = true;
+#else
+    int clustering_enabled = !!getenv("PROXY_CLUSTER_ADDR");
+#endif
+    if (clustering_enabled) {
+      char *clusterIP = getenv("PROXY_CLUSTER_ADDR");
+      Debug("cluster_note", "[Machine::Machine] Cluster IP addr: %s\n", clusterIP);
+      ip = inet_addr(clusterIP);
+    } else {
+
+      ink_gethostbyname_r_data data;
+      struct hostent *r = ink_gethostbyname_r(ahostname, &data);
+      if (!r) {
+        Warning("unable to DNS %s: %d", ahostname, data.herrno);
+        ip = 0;
+      } else {
+
+        // lowest IP address
+
+        ip = (unsigned int) -1; // 0xFFFFFFFF
+        for (int i = 0; r->h_addr_list[i]; i++)
+          if (ip > *(unsigned int *) r->h_addr_list[i])
+            ip = *(unsigned int *) r->h_addr_list[i];
+        if (ip == (unsigned int) -1)
+          ip = 0;
+      }
+      //ip = htonl(ip); for the alpha!
+    }
+#endif // LOCAL_CLUSTER_TEST_MODE
+  } else {
+
+    ip = aip;
+
+    ink_gethostbyaddr_r_data data;
+    struct hostent *r = ink_gethostbyaddr_r((char *) &ip, sizeof(int), AF_INET, &data);
+
+    if (r == NULL) {
+      Alias32 x;
+      memcpy(&x.u32, &ip, sizeof(x.u32));
+      Debug("machine_debug", "unable to reverse DNS %u.%u.%u.%u: %d", x.byte[0], x.byte[1], x.byte[2], x.byte[3], data.herrno);
+    } else
+      hostname = ats_strdup(r->h_name);
+  }
+  if (hostname)
+    hostname_len = strlen(hostname);
+  else
+    hostname_len = 0;
+
+  num_connections = num_of_cluster_threads;
+  clusterHandlers = (ClusterHandler **)ats_calloc(num_connections, sizeof(ClusterHandler *));
+}
+
+ClusterHandler *ClusterMachine::pop_ClusterHandler(int no_rr)
+{
+  int find = 0;
+  int64_t now = rr_count;
+  if (no_rr == 0) {
+    ink_atomic_increment(&rr_count, 1);
+  }
+
+  /* will happen when ts start (cluster connection is not established) */
+  while (!clusterHandlers[now % this->num_connections] && (find < this->num_connections)) {
+    now++;
+    find++;
+  }
+  return this->clusterHandlers[now % this->num_connections];
+}
+
+ClusterMachine::~ClusterMachine()
+{
+  ats_free(hostname);
+  ats_free(clusterHandlers);
+}
+
+struct MachineTimeoutContinuation;
+typedef int (MachineTimeoutContinuation::*McTimeoutContHandler) (int, void *);
+struct MachineTimeoutContinuation: public Continuation
+{
+  ClusterMachine *m;
+  int dieEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    delete m;
+    delete this;
+    return EVENT_DONE;
+  }
+
+  MachineTimeoutContinuation(ClusterMachine * am)
+    : Continuation(NULL), m(am)
+  {
+    SET_HANDLER((McTimeoutContHandler) & MachineTimeoutContinuation::dieEvent);
+  }
+};
+
+void
+free_ClusterMachine(ClusterMachine * m)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  // delay before the final free
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_MACHINES_FREED_STAT);
+  m->dead = true;
+  eventProcessor.schedule_in(new MachineTimeoutContinuation(m), MACHINE_TIMEOUT, ET_CALL);
+}
+
+void
+free_MachineList(MachineList * l)
+{
+  new_Freer(l, MACHINE_TIMEOUT);
+}
+
+MachineList *
+read_MachineList(char *filename, int afd)
+{
+  char line[256];
+  int n = -1, i = 0, ln = 0;
+  MachineList *l = NULL;
+  ink_assert(filename || (afd != -1));
+  xptr<char> path(Layout::get()->relative_to(Layout::get()->sysconfdir, filename));
+
+  int fd = ((afd != -1) ? afd : open(path, O_RDONLY));
+  if (fd >= 0) {
+    while (ink_file_fd_readline(fd, sizeof(line) - 1, line) > 0) {
+      ln++;
+      if (*line == '#')
+        continue;
+      if (n == -1 && ParseRules::is_digit(*line)) {
+        n = atoi(line);
+        if (n > 0) {
+          l = (MachineList *)ats_malloc(sizeof(MachineList) + (n - 1) * sizeof(MachineListElement));
+          l->n = 0;
+        } else {
+          l = NULL;
+        }
+        continue;
+      }
+      if (l && ParseRules::is_digit(*line) && i < n) {
+        char *port = strchr(line, ':');
+        if (!port)
+          goto Lfail;
+        *port++ = 0;
+        l->machine[i].ip = inet_addr(line);
+        if (-1 == (int) l->machine[i].ip) {
+          if (afd == -1) {
+            Warning("read machine list failure, bad ip, line %d", ln);
+            return NULL;
+          } else {
+            char s[256];
+            snprintf(s, sizeof s, "bad ip, line %d", ln);
+            return (MachineList *) ats_strdup(s);
+          }
+        }
+        l->machine[i].port = atoi(port);
+        if (!l->machine[i].port)
+          goto Lfail;
+        i++;
+        l->n++;
+        continue;
+      Lfail:
+        if (afd == -1) {
+          Warning("read machine list failure, bad port, line %d", ln);
+          return NULL;
+        } else {
+          char s[256];
+          snprintf(s, sizeof s, "bad port, line %d", ln);
+          return (MachineList *) ats_strdup(s);
+        }
+      }
+    }
+    close(fd);
+  } else {
+    Warning("read machine list failure, open failed");
+    return NULL;
+  }
+  if (n >= 0) {
+    if (i != n) {
+      if (afd == -1) {
+        Warning("read machine list failure, length mismatch");
+        return NULL;
+      } else
+        ats_free(l);
+      return (MachineList *) ats_strdup("number of machines does not match length of list\n");
+    }
+  }
+  return (afd != -1) ? (MachineList *) NULL : l;
+}
diff --git a/iocore/cluster/ClusterProcessor.cc b/iocore/cluster/ClusterProcessor.cc
new file mode 100644
index 00000000..eb73de14
--- /dev/null
+++ b/iocore/cluster/ClusterProcessor.cc
@@ -0,0 +1,847 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterProcessor.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+/*************************************************************************/
+// ClusterProcessor member functions (Public class)
+/*************************************************************************/
+int cluster_port_number = DEFAULT_CLUSTER_PORT_NUMBER;
+int cache_clustering_enabled = 0;
+int num_of_cluster_threads = DEFAULT_NUMBER_OF_CLUSTER_THREADS;
+
+ClusterProcessor clusterProcessor;
+RecRawStatBlock *cluster_rsb = NULL;
+int ET_CLUSTER;
+
+ClusterProcessor::ClusterProcessor():accept_handler(NULL), this_cluster(NULL)
+{
+}
+
+ClusterProcessor::~ClusterProcessor()
+{
+  if (accept_handler) {
+    accept_handler->ShutdownDelete();
+    accept_handler = 0;
+  }
+}
+
+int
+ClusterProcessor::internal_invoke_remote(ClusterHandler *ch, int cluster_fn,
+                                         void *data, int len, int options, void *cmsg)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  //
+  // RPC facility for intercluster communication available to other
+  //  subsystems.
+  //
+  bool steal = (options & CLUSTER_OPT_STEAL ? true : false);
+  bool delay = (options & CLUSTER_OPT_DELAY ? true : false);
+  bool data_in_ocntl = (options & CLUSTER_OPT_DATA_IS_OCONTROL ? true : false);
+  bool malloced = (cluster_fn == CLUSTER_FUNCTION_MALLOCED);
+  OutgoingControl *c;
+
+  if (!ch || (!malloced && !((unsigned int) cluster_fn < (uint32_t) SIZE_clusterFunction))) {
+    // Invalid message or node is down, free message data
+    if (malloced) {
+      ats_free(data);
+    }
+    if (cmsg) {
+      invoke_remote_data_args *args = (invoke_remote_data_args *)
+        (((OutgoingControl *) cmsg)->data + sizeof(int32_t));
+      ink_assert(args->magicno == invoke_remote_data_args::MagicNo);
+
+      args->data_oc->freeall();
+      ((OutgoingControl *) cmsg)->freeall();
+    }
+    if (data_in_ocntl) {
+      c = *((OutgoingControl **) ((char *) data - sizeof(OutgoingControl *)));
+      c->freeall();
+    }
+    return -1;
+  }
+
+  if (data_in_ocntl) {
+    c = *((OutgoingControl **) ((char *) data - sizeof(OutgoingControl *)));
+  } else {
+    c = OutgoingControl::alloc();
+  }
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CTRL_MSGS_SENT_STAT);
+  c->submit_time = ink_get_hrtime();
+
+  if (malloced) {
+    c->set_data((char *) data, len);
+  } else {
+    if (!data_in_ocntl) {
+      c->len = len + sizeof(int32_t);
+      c->alloc_data();
+    }
+    if (!c->fast_data()) {
+      CLUSTER_INCREMENT_DYN_STAT(CLUSTER_SLOW_CTRL_MSGS_SENT_STAT);
+    }
+    *(int32_t *) c->data = cluster_fn;
+    if (!data_in_ocntl) {
+      memcpy(c->data + sizeof(int32_t), data, len);
+    }
+  }
+
+  SET_CONTINUATION_HANDLER(c, (OutgoingCtrlHandler) & OutgoingControl::startEvent);
+
+  /////////////////////////////////////
+  // Compound message adjustments
+  /////////////////////////////////////
+  if (cmsg) {
+    invoke_remote_data_args *args = (invoke_remote_data_args *)
+      (((OutgoingControl *) cmsg)->data + sizeof(int32_t));
+    ink_assert(args->magicno == invoke_remote_data_args::MagicNo);
+    args->msg_oc = c;
+    c = (OutgoingControl *) cmsg;
+  }
+#ifndef CLUSTER_THREAD_STEALING
+  delay = true;
+#endif
+  if (!delay) {
+    EThread *tt = this_ethread();
+    {
+      int q = ClusterFuncToQpri(cluster_fn);
+      ink_atomiclist_push(&ch->outgoing_control_al[q], (void *) c);
+
+      MUTEX_TRY_LOCK(lock, ch->mutex, tt);
+      if (!lock) {
+		if(ch->thread && ch->thread->signal_hook)
+		  ch->thread->signal_hook(ch->thread);
+		return 1;
+      }
+      if (steal)
+        ch->steal_thread(tt);
+      return 1;
+    }
+  } else {
+    c->mutex = ch->mutex;
+    eventProcessor.schedule_imm_signal(c);
+    return 0;
+  }
+}
+
+int
+ClusterProcessor::invoke_remote(ClusterHandler *ch, int cluster_fn, void *data, int len, int options)
+{
+  return internal_invoke_remote(ch, cluster_fn, data, len, options, (void *) NULL);
+}
+
+int
+ClusterProcessor::invoke_remote_data(ClusterHandler *ch, int cluster_fn,
+                                     void *data, int data_len,
+                                     IOBufferBlock * buf,
+                                     int dest_channel, ClusterVCToken * token,
+                                     void (*bufdata_free_proc) (void *), void *bufdata_free_proc_arg, int options)
+{
+  if (!buf) {
+    // No buffer data, translate this into a invoke_remote() request
+    return internal_invoke_remote(ch, cluster_fn, data, data_len, options, (void *) NULL);
+  }
+  ink_assert(data);
+  ink_assert(data_len);
+  ink_assert(dest_channel);
+  ink_assert(token);
+  ink_assert(bufdata_free_proc);
+  ink_assert(bufdata_free_proc_arg);
+
+  /////////////////////////////////////////////////////////////////////////
+  // Build the compound message as described by invoke_remote_data_args.
+  /////////////////////////////////////////////////////////////////////////
+
+  // Build OutgoingControl for buffer data
+  OutgoingControl *bufdata_oc = OutgoingControl::alloc();
+  bufdata_oc->set_data(buf, bufdata_free_proc, bufdata_free_proc_arg);
+
+  // Build OutgoingControl for compound message header
+  invoke_remote_data_args mh;
+  mh.msg_oc = 0;
+  mh.data_oc = bufdata_oc;
+  mh.dest_channel = dest_channel;
+  mh.token = *token;
+
+  OutgoingControl *chdr = OutgoingControl::alloc();
+  chdr->submit_time = ink_get_hrtime();
+  chdr->len = sizeof(int32_t) + sizeof(mh);
+  chdr->alloc_data();
+  *(int32_t *) chdr->data = -1;   // always -1 for compound message
+  memcpy(chdr->data + sizeof(int32_t), (char *) &mh, sizeof(mh));
+
+  return internal_invoke_remote(ch, cluster_fn, data, data_len, options, (void *) chdr);
+}
+
+// TODO: Why pass in the length here if not used ?
+void
+ClusterProcessor::free_remote_data(char *p, int /* l ATS_UNUSED */)
+{
+  char *d = p - sizeof(int32_t);  // reset to ptr to function code
+  int data_hdr = ClusterControl::DATA_HDR;
+
+  ink_release_assert(*((uint8_t *) (d - data_hdr + 1)) == (uint8_t) ALLOC_DATA_MAGIC);
+  unsigned char size_index = *(d - data_hdr);
+  if (!(size_index & 0x80)) {
+    ink_release_assert(size_index <= (DEFAULT_BUFFER_SIZES - 1));
+  } else {
+    ink_release_assert(size_index == 0xff);
+  }
+
+  // Extract 'this' pointer
+
+  ClusterControl *ccl;
+  memcpy((char *) &ccl, (d - data_hdr + 2), sizeof(void *));
+  ink_assert(ccl->valid_alloc_data());
+
+  // Deallocate control structure and data
+
+  ccl->freeall();
+}
+
+ClusterVConnection *
+ClusterProcessor::open_local(Continuation * cont, ClusterMachine */* m ATS_UNUSED */, ClusterVCToken & token, int options)
+{
+  //
+  //  New connect protocol.
+  //  As a VC initiator, establish the VC connection to the remote node
+  //  by allocating the VC locally and requiring the caller to pass the
+  //  token and channel id in the remote request.  The remote handler calls
+  //  connect_local to establish the remote side of the connection.
+  //
+  bool immediate = ((options & CLUSTER_OPT_IMMEDIATE) ? true : false);
+  bool allow_immediate = ((options & CLUSTER_OPT_ALLOW_IMMEDIATE) ? true : false);
+
+  ClusterHandler *ch = ((CacheContinuation *)cont)->ch;
+  if (!ch)
+    return NULL;
+  EThread *t = ch->thread;
+  if (!t)
+    return NULL;
+
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  ClusterVConnection *vc = clusterVCAllocator.alloc();
+  vc->new_connect_read = (options & CLUSTER_OPT_CONN_READ ? 1 : 0);
+  vc->start_time = ink_get_hrtime();
+  vc->last_activity_time = vc->start_time;
+  vc->ch = ch;
+  vc->token.alloc();
+  vc->token.ch_id = ch->id;
+  token = vc->token;
+#ifdef CLUSTER_THREAD_STEALING
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONNECTIONS_OPENNED_STAT);
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONNECTIONS_OPEN_STAT);
+  MUTEX_TRY_LOCK(lock, ch->mutex, thread);
+  if (!lock) {
+#endif
+    if (immediate) {
+      clusterVCAllocator_free(vc);
+      return NULL;
+    }
+    vc->action_ = cont;
+    ink_atomiclist_push(&ch->external_incoming_open_local, (void *) vc);
+	if(ch->thread && ch->thread->signal_hook)
+	  ch->thread->signal_hook(ch->thread);
+    return CLUSTER_DELAYED_OPEN;
+
+#ifdef CLUSTER_THREAD_STEALING
+  } else {
+    if (!(immediate || allow_immediate))
+      vc->action_ = cont;
+    if (vc->start(thread) < 0) {
+      return NULL;
+    }
+    if (immediate || allow_immediate) {
+      return vc;
+    } else {
+      return CLUSTER_DELAYED_OPEN;
+    }
+  }
+#endif
+}
+
+ClusterVConnection *
+ClusterProcessor::connect_local(Continuation * cont, ClusterVCToken * token, int channel, int options)
+{
+  //
+  // Establish VC connection initiated by remote node on the local node
+  // using the given token and channel id.
+  //
+  bool immediate = ((options & CLUSTER_OPT_IMMEDIATE) ? true : false);
+  bool allow_immediate = ((options & CLUSTER_OPT_ALLOW_IMMEDIATE) ? true : false);
+
+#ifdef LOCAL_CLUSTER_TEST_MODE
+  int ip = inet_addr("127.0.0.1");
+  ClusterMachine *m;
+  m = this_cluster->current_configuration()->find(ip, token->ip_created);
+#else
+  ClusterMachine *m = this_cluster->current_configuration()->find(token->ip_created);
+#endif
+  if (!m)
+    return NULL;
+  if (token->ch_id >= (uint32_t)m->num_connections)
+    return NULL;
+  ClusterHandler *ch = m->clusterHandlers[token->ch_id];
+  if (!ch)
+    return NULL;
+  EThread *t = ch->thread;
+  if (!t)
+    return NULL;
+
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  ClusterVConnection *vc = clusterVCAllocator.alloc();
+  vc->new_connect_read = (options & CLUSTER_OPT_CONN_READ ? 1 : 0);
+  vc->start_time = ink_get_hrtime();
+  vc->last_activity_time = vc->start_time;
+  vc->ch = ch;
+  vc->token = *token;
+  vc->channel = channel;
+#ifdef CLUSTER_THREAD_STEALING
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONNECTIONS_OPENNED_STAT);
+  CLUSTER_INCREMENT_DYN_STAT(CLUSTER_CONNECTIONS_OPEN_STAT);
+  MUTEX_TRY_LOCK(lock, ch->mutex, thread);
+  if (!lock) {
+#endif
+    if (immediate) {
+      clusterVCAllocator_free(vc);
+      return NULL;
+    }
+    vc->mutex = ch->mutex;
+    vc->action_ = cont;
+    ch->thread->schedule_imm_signal(vc);
+    return CLUSTER_DELAYED_OPEN;
+#ifdef CLUSTER_THREAD_STEALING
+  } else {
+    if (!(immediate || allow_immediate))
+      vc->action_ = cont;
+    if (vc->start(thread) < 0) {
+      return NULL;
+    }
+    if (immediate || allow_immediate) {
+      return vc;
+    } else {
+      return CLUSTER_DELAYED_OPEN;
+    }
+  }
+#endif
+}
+
+bool ClusterProcessor::disable_remote_cluster_ops(ClusterMachine * m)
+{
+  ClusterHandler *ch = m->pop_ClusterHandler(1);
+  if (ch) {
+    return ch->disable_remote_cluster_ops;
+  } else {
+    return true;
+  }
+}
+
+////////////////////////////////////////////////////////////////////////////
+// Simplify debug access to stats
+////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////
+
+GlobalClusterPeriodicEvent *
+  PeriodicClusterEvent;
+
+#ifdef CLUSTER_TOMCAT
+extern int cache_clustering_enabled;
+
+int CacheClusterMonitorEnabled = 0;
+int CacheClusterMonitorIntervalSecs = 1;
+
+int cluster_send_buffer_size = 0;
+int cluster_receive_buffer_size = 0;
+unsigned long cluster_sockopt_flags = 0;
+unsigned long cluster_packet_mark = 0;
+unsigned long cluster_packet_tos = 0;
+
+int RPC_only_CacheCluster = 0;
+#endif
+
+int
+ClusterProcessor::init()
+{
+  cluster_rsb = RecAllocateRawStatBlock((int) cluster_stat_count);
+  //
+  // Statistics callbacks
+  //
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_open",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CONNECTIONS_OPEN_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CONNECTIONS_OPEN_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_opened",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CONNECTIONS_OPENNED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CONNECTIONS_OPENNED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_closed",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CON_TOTAL_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CON_TOTAL_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.slow_ctrl_msgs_sent",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_SLOW_CTRL_MSGS_SENT_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_SLOW_CTRL_MSGS_SENT_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_read_locked",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CONNECTIONS_READ_LOCKED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CONNECTIONS_READ_LOCKED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_write_locked",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CONNECTIONS_WRITE_LOCKED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CONNECTIONS_WRITE_LOCKED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.reads",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_READ_BYTES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_READ_BYTES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.read_bytes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_READ_BYTES_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_READ_BYTES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.writes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_WRITE_BYTES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_WRITE_BYTES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.write_bytes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_WRITE_BYTES_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_WRITE_BYTES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.control_messages_sent",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CTRL_MSGS_SEND_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CTRL_MSGS_SEND_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.control_messages_received",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CTRL_MSGS_RECV_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CTRL_MSGS_RECV_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.op_delayed_for_lock",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_OP_DELAYED_FOR_LOCK_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_OP_DELAYED_FOR_LOCK_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_bumped",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CONNECTIONS_BUMPED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CONNECTIONS_BUMPED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.net_backup",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_NET_BACKUP_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_NET_BACKUP_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.nodes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_NODES_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_NODES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.machines_allocated",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_MACHINES_ALLOCATED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_MACHINES_ALLOCATED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.machines_freed",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_MACHINES_FREED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_MACHINES_FREED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.configuration_changes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CONFIGURATION_CHANGES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CONFIGURATION_CHANGES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.delayed_reads",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_DELAYED_READS_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_DELAYED_READS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.byte_bank_used",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_BYTE_BANK_USED_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_BYTE_BANK_USED_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.alloc_data_news",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_ALLOC_DATA_NEWS_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_ALLOC_DATA_NEWS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.write_bb_mallocs",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_WRITE_BB_MALLOCS_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_WRITE_BB_MALLOCS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.partial_reads",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_PARTIAL_READS_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_PARTIAL_READS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.partial_writes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_PARTIAL_WRITES_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_PARTIAL_WRITES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.cache_outstanding",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CACHE_OUTSTANDING_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_OUTSTANDING_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.remote_op_timeouts",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_REMOTE_OP_TIMEOUTS_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_REMOTE_OP_TIMEOUTS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.remote_op_reply_timeouts",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_REMOTE_OP_REPLY_TIMEOUTS_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_REMOTE_OP_REPLY_TIMEOUTS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.chan_inuse",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CHAN_INUSE_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CHAN_INUSE_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.open_delays",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_OPEN_DELAY_TIME_STAT, RecRawStatSyncSum);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_OPEN_DELAY_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.connections_avg_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_CON_TOTAL_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CON_TOTAL_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.control_messages_avg_send_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_CTRL_MSGS_SEND_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CTRL_MSGS_SEND_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.control_messages_avg_receive_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_CTRL_MSGS_RECV_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CTRL_MSGS_RECV_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.open_delay_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_OPEN_DELAY_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_OPEN_DELAY_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.cache_callback_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_CACHE_CALLBACK_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_CALLBACK_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.rmt_cache_callback_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT,
+                     (int) CLUSTER_CACHE_RMT_CALLBACK_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_RMT_CALLBACK_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.lkrmt_cache_callback_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT,
+                     (int) CLUSTER_CACHE_LKRMT_CALLBACK_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_LKRMT_CALLBACK_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.local_connection_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT,
+                     (int) CLUSTER_LOCAL_CONNECTION_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_LOCAL_CONNECTION_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.remote_connection_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT,
+                     (int) CLUSTER_REMOTE_CONNECTION_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_REMOTE_CONNECTION_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.rdmsg_assemble_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_RDMSG_ASSEMBLE_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_RDMSG_ASSEMBLE_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.cluster_ping_time",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) CLUSTER_PING_TIME_STAT, RecRawStatSyncHrTimeAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_PING_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.cache_callbacks",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CACHE_CALLBACK_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_CALLBACK_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.rmt_cache_callbacks",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CACHE_RMT_CALLBACK_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_RMT_CALLBACK_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.lkrmt_cache_callbacks",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_CACHE_LKRMT_CALLBACK_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_CACHE_LKRMT_CALLBACK_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.local_connections_closed",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_LOCAL_CONNECTION_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_LOCAL_CONNECTION_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.remote_connections_closed",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_REMOTE_CONNECTION_TIME_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_REMOTE_CONNECTION_TIME_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.setdata_no_clustervc",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) cluster_setdata_no_CLUSTERVC_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(cluster_setdata_no_CLUSTERVC_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.setdata_no_tunnel",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_SETDATA_NO_TUNNEL_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_SETDATA_NO_TUNNEL_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.setdata_no_cachevc",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_SETDATA_NO_CACHEVC_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_SETDATA_NO_CACHEVC_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.setdata_no_cluster",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) cluster_setdata_no_CLUSTER_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(cluster_setdata_no_CLUSTER_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_write_stall",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_WRITE_STALL_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_WRITE_STALL_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.no_remote_space",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_NO_REMOTE_SPACE_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_NO_REMOTE_SPACE_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.level1_bank",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_LEVEL1_BANK_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_LEVEL1_BANK_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.multilevel_bank",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_MULTILEVEL_BANK_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_MULTILEVEL_BANK_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_insert_lock_misses",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) CLUSTER_VC_CACHE_INSERT_LOCK_MISSES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_INSERT_LOCK_MISSES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_inserts",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_CACHE_INSERTS_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_INSERTS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_lookup_lock_misses",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) CLUSTER_VC_CACHE_LOOKUP_LOCK_MISSES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_LOOKUP_LOCK_MISSES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_lookup_hits",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_CACHE_LOOKUP_HITS_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_LOOKUP_HITS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_lookup_misses",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_CACHE_LOOKUP_MISSES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_LOOKUP_MISSES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_scans",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_CACHE_SCANS_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_SCANS_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_scan_lock_misses",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_CACHE_SCAN_LOCK_MISSES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_SCAN_LOCK_MISSES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_cache_purges",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_CACHE_PURGES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_CACHE_PURGES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.write_lock_misses",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_WRITE_LOCK_MISSES_STAT, RecRawStatSyncCount);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_WRITE_LOCK_MISSES_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_read_list_len",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_READ_LIST_LEN_STAT, RecRawStatSyncAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_READ_LIST_LEN_STAT);
+  RecRegisterRawStat(cluster_rsb, RECT_PROCESS,
+                     "proxy.process.cluster.vc_write_list_len",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) CLUSTER_VC_WRITE_LIST_LEN_STAT, RecRawStatSyncAvg);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_VC_WRITE_LIST_LEN_STAT);
+  CLUSTER_CLEAR_DYN_STAT(CLUSTER_NODES_STAT);   // clear sum and count
+  // INKqa08033: win2k: ui: cluster warning light on
+  // Used to call CLUSTER_INCREMENT_DYN_STAT here; switch to SUM_GLOBAL_DYN_STAT
+  CLUSTER_SUM_GLOBAL_DYN_STAT(CLUSTER_NODES_STAT, 1);   // one node in cluster, ME
+
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_monitor_enabled, "proxy.config.cluster.load_monitor_enabled");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_ping_message_send_msec_interval, "proxy.config.cluster.ping_send_interval_msecs");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_num_ping_response_buckets, "proxy.config.cluster.ping_response_buckets");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_msecs_per_ping_response_bucket, "proxy.config.cluster.msecs_per_ping_response_bucket");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_ping_latency_threshold_msecs, "proxy.config.cluster.ping_latency_threshold_msecs");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_cluster_load_compute_msec_interval, "proxy.config.cluster.load_compute_interval_msecs");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_cluster_periodic_msec_interval, "proxy.config.cluster.periodic_timer_interval_msecs");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_ping_history_buf_length, "proxy.config.cluster.ping_history_buf_length");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_cluster_load_clear_duration, "proxy.config.cluster.cluster_load_clear_duration");
+  REC_ReadConfigInteger(ClusterLoadMonitor::cf_cluster_load_exceed_duration, "proxy.config.cluster.cluster_load_exceed_duration");
+
+  //
+  // Configuration callbacks
+  //
+  if (cluster_port_number != DEFAULT_CLUSTER_PORT_NUMBER)
+    cluster_port = cluster_port_number;
+  else {
+    REC_ReadConfigInteger(cluster_port, "proxy.config.cluster.cluster_port");
+  }
+  if (num_of_cluster_threads == DEFAULT_NUMBER_OF_CLUSTER_THREADS)
+    REC_ReadConfigInteger(num_of_cluster_threads, "proxy.config.cluster.threads");
+
+  REC_EstablishStaticConfigInt32(CacheClusterMonitorEnabled, "proxy.config.cluster.enable_monitor");
+  REC_EstablishStaticConfigInt32(CacheClusterMonitorIntervalSecs, "proxy.config.cluster.monitor_interval_secs");
+  REC_ReadConfigInteger(cluster_receive_buffer_size, "proxy.config.cluster.receive_buffer_size");
+  REC_ReadConfigInteger(cluster_send_buffer_size, "proxy.config.cluster.send_buffer_size");
+  REC_ReadConfigInteger(cluster_sockopt_flags, "proxy.config.cluster.sock_option_flag");
+  REC_ReadConfigInteger(cluster_packet_mark, "proxy.config.cluster.sock_packet_mark");
+  REC_ReadConfigInteger(cluster_packet_tos, "proxy.config.cluster.sock_packet_tos");
+  REC_EstablishStaticConfigInt32(RPC_only_CacheCluster, "proxy.config.cluster.rpc_cache_cluster");
+
+  int cluster_type = 0;
+  REC_ReadConfigInteger(cluster_type, "proxy.local.cluster.type");
+
+  create_this_cluster_machine();
+  // Cluster API Initializations
+  clusterAPI_init();
+  // Start global Cluster periodic event
+  PeriodicClusterEvent = new GlobalClusterPeriodicEvent;
+  PeriodicClusterEvent->init();
+
+  this_cluster = new Cluster;
+  ClusterConfiguration *cc = new ClusterConfiguration;
+  this_cluster->configurations.push(cc);
+  cc->n_machines = 1;
+  cc->machines[0] = this_cluster_machine();
+  memset(cc->hash_table, 0, CLUSTER_HASH_TABLE_SIZE);
+  // 0 dummy output data
+
+  memset(channel_dummy_output, 0, sizeof(channel_dummy_output));
+
+  if (cluster_type == 1) {
+    cache_clustering_enabled = 1;
+    Note("cache clustering enabled");
+    compute_cluster_mode();
+  } else {
+    cache_clustering_enabled = 0;
+    Note("cache clustering disabled");
+  }
+  return 0;
+}
+
+// function added to adhere to the name calling convention of init functions
+int
+init_clusterprocessor(void)
+{
+  return clusterProcessor.init();
+}
+
+int
+ClusterProcessor::start()
+{
+#ifdef LOCAL_CLUSTER_TEST_MODE
+  this_cluster_machine()->cluster_port = cluster_port;
+#endif
+  if (cache_clustering_enabled && (cacheProcessor.IsCacheEnabled() == CACHE_INITIALIZED)) {
+    size_t stacksize;
+
+    REC_ReadConfigInteger(stacksize, "proxy.config.thread.default.stacksize");
+    ET_CLUSTER = eventProcessor.spawn_event_threads(num_of_cluster_threads, "ET_CLUSTER", stacksize);
+    for (int i = 0; i < eventProcessor.n_threads_for_type[ET_CLUSTER]; i++) {
+      initialize_thread_for_net(eventProcessor.eventthread[ET_CLUSTER][i]);
+    }
+    REC_RegisterConfigUpdateFunc("proxy.config.cluster.cluster_configuration", machine_config_change, (void *) CLUSTER_CONFIG);
+    do_machine_config_change((void *) CLUSTER_CONFIG, "proxy.config.cluster.cluster_configuration");
+    // TODO: Remove this?
+#ifdef USE_SEPARATE_MACHINE_CONFIG
+    REC_RegisterConfigUpdateFunc("proxy.config.cluster.machine_configuration", machine_config_change, (void *) MACHINE_CONFIG);
+    do_machine_config_change((void *) MACHINE_CONFIG, "proxy.config.cluster.machine_configuration");
+#endif
+
+    accept_handler = new ClusterAccept(&cluster_port, cluster_receive_buffer_size, cluster_send_buffer_size);
+    accept_handler->Init();
+  }
+  return 0;
+}
+
+void
+ClusterProcessor::connect(char *hostname, int16_t id)
+{
+  //
+  // Construct a cluster link to the given machine
+  //
+  ClusterHandler *ch = new ClusterHandler;
+  SET_CONTINUATION_HANDLER(ch, (ClusterContHandler) & ClusterHandler::connectClusterEvent);
+  ch->hostname = ats_strdup(hostname);
+  ch->connector = true;
+  ch->id = id;
+  eventProcessor.schedule_imm(ch, ET_CLUSTER);
+}
+
+void
+ClusterProcessor::connect(unsigned int ip, int port, int16_t id, bool delay)
+{
+  //
+  // Construct a cluster link to the given machine
+  //
+  ClusterHandler *ch = new ClusterHandler;
+  SET_CONTINUATION_HANDLER(ch, (ClusterContHandler) & ClusterHandler::connectClusterEvent);
+  ch->ip = ip;
+  ch->port = port;
+  ch->connector = true;
+  ch->id = id;
+  if (delay)
+    eventProcessor.schedule_in(ch, CLUSTER_MEMBER_DELAY, ET_CLUSTER);
+  else
+    eventProcessor.schedule_imm(ch, ET_CLUSTER);
+}
+
+void
+ClusterProcessor::send_machine_list(ClusterMachine * m)
+{
+  //
+  // In testing mode, cluster nodes automagically connect to all
+  // known hosts.  This function is called on connect to exchange those
+  // lists.
+  //
+  MachineListMessage mlistmsg;
+  int vers = MachineListMessage::protoToVersion(m->msg_proto_major);
+  ClusterConfiguration *cc = this_cluster->current_configuration();
+  void *data;
+  int len;
+
+  if (vers == MachineListMessage::MACHINE_LIST_MESSAGE_VERSION) {
+    int n = 0;
+    MachineListMessage *msg = &mlistmsg;
+
+    while (n < cc->n_machines) {
+      msg->ip[n] = cc->machines[n]->ip;
+      n++;
+    }
+    msg->n_ip = n;
+    data = (void *) msg;
+    len = msg->sizeof_fixedlen_msg() + (n * sizeof(uint32_t));
+
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"send_machine_list() bad msg version");
+  }
+  invoke_remote(m->pop_ClusterHandler(), MACHINE_LIST_CLUSTER_FUNCTION, data, len);
+}
+
+void
+ClusterProcessor::compute_cluster_mode()
+{
+  if (RPC_only_CacheCluster) {
+    if (cache_clustering_enabled > 0) {
+      cache_clustering_enabled = -1;
+      Note("RPC only cache clustering");
+    }
+  } else {
+    if (cache_clustering_enabled < 0) {
+      cache_clustering_enabled = 1;
+      Note("RPC only cache clustering disabled");
+    }
+  }
+}
+
+// End of ClusterProcessor.cc
diff --git a/iocore/cluster/ClusterRPC.cc b/iocore/cluster/ClusterRPC.cc
new file mode 100644
index 00000000..043f082b
--- /dev/null
+++ b/iocore/cluster/ClusterRPC.cc
@@ -0,0 +1,379 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterRPC.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+/////////////////////////////////////////////////////////////////////////
+// All RPC function handlers (xxx_ClusterFunction() ) are invoked from
+// ClusterHandler::update_channels_read().
+/////////////////////////////////////////////////////////////////////////
+
+void
+ping_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  //
+  // Just return the data back
+  //
+  clusterProcessor.invoke_remote(ch, PING_REPLY_CLUSTER_FUNCTION, data, len);
+}
+
+void
+ping_reply_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  //
+  // Pass back the data.
+  //
+  PingMessage *msg = (PingMessage *) data;
+  msg->fn(ch, msg->data, (len - msg->sizeof_fixedlen_msg()));
+}
+
+void
+machine_list_ClusterFunction(ClusterHandler * from, void *data, int len)
+{
+  (void) from;
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+  MachineListMessage *m = (MachineListMessage *) data;
+
+  if (mh->GetMsgVersion() != MachineListMessage::MACHINE_LIST_MESSAGE_VERSION) {        ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"machine_list_ClusterFunction() bad msg version");
+  }
+  if (m->NeedByteSwap())
+    m->SwapBytes();
+
+  ink_assert(m->n_ip == ((len - m->sizeof_fixedlen_msg()) / sizeof(uint32_t)));
+
+  //
+  // The machine list is a vector of ip's stored in network byte order.
+  // This list is exchanged whenever a new Cluster Connection is formed.
+  //
+  ClusterConfiguration *cc = this_cluster()->current_configuration();
+
+  for (unsigned int i = 0; i < m->n_ip; i++) {
+    for (int j = 0; j < cc->n_machines; j++) {
+      if (cc->machines[j]->ip == m->ip[i])
+        goto Lfound;
+    }
+    // not found, must be a new machine
+    {
+      int num_connections = this_cluster_machine()->num_connections;
+      for (int k = 0; k < num_connections; k++) {
+        clusterProcessor.connect(m->ip[i], k);
+      }
+    }
+  Lfound:
+    ;
+  }
+}
+
+void
+close_channel_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+  CloseMessage *m = (CloseMessage *) data;
+
+  if (mh->GetMsgVersion() != CloseMessage::CLOSE_CHAN_MESSAGE_VERSION) {        ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"close_channel_ClusterFunction() bad msg version");
+  }
+  if (m->NeedByteSwap())
+    m->SwapBytes();
+
+  //
+  // Close the remote side of a VC connection (remote node is originator)
+  //
+  ink_assert(len >= (int) sizeof(CloseMessage));
+  if (!ch || !ch->channels)
+    return;
+  ClusterVConnection *vc = ch->channels[m->channel];
+  if (VALID_CHANNEL(vc) && vc->token.sequence_number == m->sequence_number) {
+    vc->remote_closed = m->status;
+    vc->remote_lerrno = m->lerrno;
+    ch->vcs_push(vc, vc->type);
+  }
+}
+
+void
+test_ClusterFunction(ClusterHandler *ch, void *data, int len)
+{
+  //
+  // Note: Only for testing.
+  //
+  if (ptest_ClusterFunction)
+    ptest_ClusterFunction(ch, data, len);
+}
+
+CacheVC *
+ChannelToCacheWriteVC(ClusterHandler * ch, int channel, uint32_t channel_seqno, ClusterVConnection ** cluster_vc)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  ClusterVConnection *cvc = ch->channels[channel];
+  if (!VALID_CHANNEL(cvc)
+      || (channel_seqno != cvc->token.sequence_number)
+      || (cvc->read.vio.op != VIO::READ)) {
+    CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTERVC_STAT);
+    return NULL;
+  }
+  // Tunneling from cluster to cache (remote write).
+  // Get cache VC pointer.
+
+  OneWayTunnel *owt = (OneWayTunnel *) cvc->read.vio._cont;
+  if (!owt) {
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_SETDATA_NO_TUNNEL_STAT);
+    return NULL;
+  }
+  CacheVC *cache_vc = (CacheVC *) owt->vioTarget->vc_server;
+  if (!cache_vc) {
+    CLUSTER_INCREMENT_DYN_STAT(CLUSTER_SETDATA_NO_CACHEVC_STAT);
+    return NULL;
+  }
+  *cluster_vc = cvc;
+  return cache_vc;
+}
+
+void
+set_channel_data_ClusterFunction(ClusterHandler *ch, void *tdata, int tlen)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  // We are called on the ET_CLUSTER thread.
+
+  char *data;
+  int len;
+  int res;
+
+  // Allocate memory for set channel data and pass it to the cache
+  IncomingControl *ic = IncomingControl::alloc();
+  ic->len = tlen;
+  ic->alloc_data();
+
+  data = ic->data + sizeof(int32_t);      // free_remote_data expects d+sizeof(int32_t)
+  memcpy(data, tdata, tlen);
+  len = tlen;
+
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+  SetChanDataMessage *m = (SetChanDataMessage *) data;
+
+  if (mh->GetMsgVersion() != SetChanDataMessage::SET_CHANNEL_DATA_MESSAGE_VERSION) {    ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"set_channel_data_ClusterFunction() bad msg version");
+  }
+  if (m->NeedByteSwap())
+    m->SwapBytes();
+
+  ClusterVConnection *cvc;
+  CacheVC *cache_vc;
+
+  if (ch) {
+    cache_vc = ChannelToCacheWriteVC(ch, m->channel, m->sequence_number, &cvc);
+    if (!cache_vc) {
+      ic->freeall();
+      return;
+    }
+    // Unmarshal data.
+    switch (m->data_type) {
+    case CACHE_DATA_HTTP_INFO:
+      {
+        char *p = (char *) m + SetChanDataMessage::sizeof_fixedlen_msg();
+
+        IOBufferBlock *block_ref = ic->get_block();
+        res = HTTPInfo::unmarshal(p, len, block_ref);
+        ink_assert(res > 0);
+
+        CacheHTTPInfo h;
+        h.get_handle((char *) &m->data[0], len);
+        h.set_buffer_reference(block_ref);
+        cache_vc->set_http_info(&h);
+        ic->freeall();
+        break;
+      }
+    default:
+      {
+        ink_release_assert(!"set_channel_data_ClusterFunction bad CacheDataType");
+      }
+    }                           // End of switch
+    ++cvc->n_recv_set_data_msgs;        // note received messages
+
+  } else {
+    ic->freeall();
+    CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTER_STAT);
+  }
+}
+
+void
+post_setchan_send_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  // We are called on the ET_CLUSTER thread.
+  // set_data() control message has been queued into cluster transfer message.
+  // This allows us to assume that it has been sent.
+  // Decrement Cluster VC n_set_data_msgs to allow transmission of
+  // initial open_write data after (n_set_data_msgs == 0).
+
+  SetChanDataMessage *m = (SetChanDataMessage *) data;
+  ClusterVConnection *cvc;
+
+  if (ch) {
+    cvc = ch->channels[m->channel];
+    if (VALID_CHANNEL(cvc)) {
+      ink_atomic_increment(&cvc->n_set_data_msgs, -1);
+    } else {
+      CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTERVC_STAT);
+    }
+  } else {
+    CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTER_STAT);
+  }
+}
+
+void
+set_channel_pin_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  // This isn't used. /leif
+  //EThread *thread = this_ethread();
+  //ProxyMutex *mutex = thread->mutex;
+
+  // We are called on the ET_CLUSTER thread.
+
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+  SetChanPinMessage *m = (SetChanPinMessage *) data;
+
+  if (mh->GetMsgVersion() != SetChanPinMessage::SET_CHANNEL_PIN_MESSAGE_VERSION) {      ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"set_channel_pin_ClusterFunction() bad msg version");
+  }
+
+  if (m->NeedByteSwap())
+    m->SwapBytes();
+
+  ClusterVConnection *cvc = NULL;       // Just to make GCC happy
+  CacheVC *cache_vc;
+
+  if (ch != 0) {
+    cache_vc = ChannelToCacheWriteVC(ch, m->channel, m->sequence_number, &cvc);
+    if (cache_vc) {
+      cache_vc->set_pin_in_cache(m->pin_time);
+    }
+    // cvc is always set in ChannelToCacheWriteVC, so need to check it
+    ++cvc->n_recv_set_data_msgs;        // note received messages
+  }
+}
+
+void
+post_setchan_pin_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  // We are called on the ET_CLUSTER thread.
+  // Control message has been queued into cluster transfer message.
+  // This allows us to assume that it has been sent.
+  // Decrement Cluster VC n_set_data_msgs to allow transmission of
+  // initial open_write data after (n_set_data_msgs == 0).
+
+  SetChanPinMessage *m = (SetChanPinMessage *) data;
+  ClusterVConnection *cvc;
+
+  if (ch) {
+    cvc = ch->channels[m->channel];
+    if (VALID_CHANNEL(cvc)) {
+      ink_atomic_increment(&cvc->n_set_data_msgs, -1);
+    } else {
+      CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTERVC_STAT);
+    }
+  } else {
+    CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTER_STAT);
+  }
+}
+
+void
+set_channel_priority_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  // This isn't used.
+  //EThread *thread = this_ethread();
+  //ProxyMutex *mutex = thread->mutex;
+
+  // We are called on the ET_CLUSTER thread.
+
+  ClusterMessageHeader *mh = (ClusterMessageHeader *) data;
+  SetChanPriorityMessage *m = (SetChanPriorityMessage *) data;
+
+  if (mh->GetMsgVersion() != SetChanPriorityMessage::SET_CHANNEL_PRIORITY_MESSAGE_VERSION) {    ////////////////////////////////////////////////
+    // Convert from old to current message format
+    ////////////////////////////////////////////////
+    ink_release_assert(!"set_channel_priority_ClusterFunction() bad msg version");
+  }
+  if (m->NeedByteSwap())
+    m->SwapBytes();
+
+  ClusterVConnection *cvc = NULL;       // Just to make GCC happy
+  CacheVC *cache_vc;
+
+  if (ch != 0) {
+    cache_vc = ChannelToCacheWriteVC(ch, m->channel, m->sequence_number, &cvc);
+    if (cache_vc) {
+      cache_vc->set_disk_io_priority(m->disk_priority);
+    }
+    // cvc is always set in ChannelToCacheWriteVC, so need to check it
+    ++cvc->n_recv_set_data_msgs;        // note received messages
+  }
+}
+
+void
+post_setchan_priority_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  // We are called on the ET_CLUSTER thread.
+  // Control message has been queued into cluster transfer message.
+  // This allows us to assume that it has been sent.
+  // Decrement Cluster VC n_set_data_msgs to allow transmission of
+  // initial open_write data after (n_set_data_msgs == 0).
+
+  SetChanPriorityMessage *m = (SetChanPriorityMessage *) data;
+  ClusterVConnection *cvc;
+
+  if (ch) {
+    cvc = ch->channels[m->channel];
+    if (VALID_CHANNEL(cvc)) {
+      ink_atomic_increment(&cvc->n_set_data_msgs, -1);
+    } else {
+      CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTERVC_STAT);
+    }
+  } else {
+    CLUSTER_INCREMENT_DYN_STAT(cluster_setdata_no_CLUSTER_STAT);
+  }
+}
+
+// End of ClusterRPC.cc
diff --git a/iocore/cluster/ClusterVConnection.cc b/iocore/cluster/ClusterVConnection.cc
new file mode 100644
index 00000000..0630edfa
--- /dev/null
+++ b/iocore/cluster/ClusterVConnection.cc
@@ -0,0 +1,653 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterVConnection.cc
+****************************************************************************/
+
+#include "P_Cluster.h"
+ClassAllocator<ClusterVConnection> clusterVCAllocator("clusterVCAllocator");
+ClassAllocator<ByteBankDescriptor> byteBankAllocator("byteBankAllocator");
+
+ByteBankDescriptor *
+ByteBankDescriptor::ByteBankDescriptor_alloc(IOBufferBlock * iob)
+{
+  ByteBankDescriptor *b = byteBankAllocator.alloc();
+  b->block = iob;
+  return b;
+}
+
+void
+ByteBankDescriptor::ByteBankDescriptor_free(ByteBankDescriptor * b)
+{
+  b->block = 0;
+  byteBankAllocator.free(b);
+}
+
+void
+clusterVCAllocator_free(ClusterVConnection * vc)
+{
+  vc->mutex = 0;
+  vc->action_ = 0;
+  vc->free();
+  if (vc->in_vcs) {
+    vc->type = VC_CLUSTER_CLOSED;
+    return;
+  }
+  clusterVCAllocator.free(vc);
+}
+
+ClusterVConnState::ClusterVConnState():enabled(0), priority(1), vio(VIO::NONE), queue(0), ifd(-1), delay_timeout(NULL)
+{
+}
+
+ClusterVConnectionBase::ClusterVConnectionBase():
+thread(0), closed(0), inactivity_timeout_in(0), active_timeout_in(0), inactivity_timeout(NULL), active_timeout(NULL)
+{
+}
+
+#ifdef DEBUG
+int
+  ClusterVConnectionBase::enable_debug_trace = 0;
+#endif
+
+VIO *
+ClusterVConnectionBase::do_io_read(Continuation * acont, int64_t anbytes, MIOBuffer * abuffer)
+{
+  ink_assert(!closed);
+  read.vio.buffer.writer_for(abuffer);
+  read.vio.op = VIO::READ;
+  read.vio.set_continuation(acont);
+  read.vio.nbytes = anbytes;
+  read.vio.ndone = 0;
+  read.vio.vc_server = (VConnection *) this;
+  read.enabled = 1;
+
+  ClusterVConnection *cvc = (ClusterVConnection *) this;
+  Debug("cluster_vc_xfer", "do_io_read [%s] chan %d", "", cvc->channel);
+  return &read.vio;
+}
+
+VIO *
+ClusterVConnectionBase::do_io_pread(Continuation * /* acont ATS_UNUSED */, int64_t /* anbytes ATS_UNUSED */,
+                                    MIOBuffer * /* abuffer ATS_UNUSED */, int64_t /* off ATS_UNUSED */)
+{
+  return 0;
+}
+
+int
+ClusterVConnection::get_header(void ** /* ptr ATS_UNUSED */, int * /*len ATS_UNUSED */)
+{
+  ink_assert(!"implemented");
+  return -1;
+}
+
+int
+ClusterVConnection::set_header(void * /* ptr ATS_UNUSED */, int /* len ATS_UNUSED */)
+{
+  ink_assert(!"implemented");
+  return -1;
+}
+
+int
+ClusterVConnection::get_single_data(void ** /* ptr ATS_UNUSED */, int * /* len ATS_UNUSED */)
+{
+  ink_assert(!"implemented");
+  return -1;
+}
+
+VIO *
+ClusterVConnectionBase::do_io_write(Continuation * acont, int64_t anbytes, IOBufferReader * abuffer, bool owner)
+{
+  ink_assert(!closed);
+  ink_assert(!owner);
+  write.vio.buffer.reader_for(abuffer);
+  write.vio.op = VIO::WRITE;
+  write.vio.set_continuation(acont);
+  write.vio.nbytes = anbytes;
+  write.vio.ndone = 0;
+  write.vio.vc_server = (VConnection *) this;
+  write.enabled = 1;
+
+  return &write.vio;
+}
+
+void
+ClusterVConnectionBase::do_io_close(int alerrno)
+{
+  read.enabled = 0;
+  write.enabled = 0;
+  read.vio.buffer.clear();
+  write.vio.buffer.clear();
+  INK_WRITE_MEMORY_BARRIER;
+  if (alerrno && alerrno != -1)
+    this->lerrno = alerrno;
+
+  if (alerrno == -1) {
+    closed = 1;
+  } else {
+    closed = -1;
+  }
+}
+
+void
+ClusterVConnection::reenable(VIO *vio)
+{
+  if (type == VC_CLUSTER_WRITE)
+    ch->vcs_push(this, VC_CLUSTER_WRITE);
+
+  ClusterVConnectionBase::reenable(vio);
+}
+
+void
+ClusterVConnectionBase::reenable(VIO * vio)
+{
+  ink_assert(!closed);
+  if (vio == &read.vio) {
+    read.enabled = 1;
+#ifdef DEBUG
+    if (enable_debug_trace && (vio->buffer.writer() && !vio->buffer.writer()->write_avail()))
+      printf("NetVConnection re-enabled for read when full\n");
+#endif
+  } else if (vio == &write.vio) {
+    write.enabled = 1;
+#ifdef DEBUG
+    if (enable_debug_trace && (vio->buffer.writer() && !vio->buffer.reader()->read_avail()))
+      printf("NetVConnection re-enabled for write when empty\n");
+#endif
+  } else {
+    ink_assert(!"bad vio");
+  }
+}
+
+void
+ClusterVConnectionBase::reenable_re(VIO * vio)
+{
+  reenable(vio);
+}
+
+ClusterVConnection::ClusterVConnection(int is_new_connect_read)
+  :  ch(NULL),
+     new_connect_read(is_new_connect_read),
+     remote_free(0),
+     last_local_free(0),
+     channel(0),
+     close_disabled(0),
+     remote_closed(0),
+     remote_close_disabled(1),
+     remote_lerrno(0),
+     in_vcs(0),
+     type(0),
+     start_time(0),
+     last_activity_time(0),
+     n_set_data_msgs(0),
+     n_recv_set_data_msgs(0),
+     pending_remote_fill(0),
+     remote_ram_cache_hit(0),
+     have_all_data(0),
+     initial_data_bytes(0),
+     current_cont(0),
+     iov_map(CLUSTER_IOV_NOT_OPEN),
+     write_list_tail(0),
+     write_list_bytes(0),
+     write_bytes_in_transit(0),
+     alternate(),
+     time_pin(0),
+     disk_io_priority(0)
+{
+#ifdef DEBUG
+  read.vio.buffer.name = "ClusterVConnection.read";
+  write.vio.buffer.name = "ClusterVConnection.write";
+#endif
+  SET_HANDLER((ClusterVConnHandler) & ClusterVConnection::startEvent);
+}
+
+ClusterVConnection::~ClusterVConnection()
+{
+  free();
+}
+
+void
+ClusterVConnection::free()
+{
+  if (alternate.valid()) {
+    alternate.destroy();
+  }
+  ByteBankDescriptor *d;
+  while ((d = byte_bank_q.dequeue())) {
+    ByteBankDescriptor::ByteBankDescriptor_free(d);
+  }
+  read_block = 0;
+  remote_write_block = 0;
+  marshal_buf = 0;
+  write_list = 0;
+  write_list_tail = 0;
+  write_list_bytes = 0;
+  write_bytes_in_transit = 0;
+}
+
+VIO *
+ClusterVConnection::do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf)
+{
+  if (type == VC_CLUSTER)
+    type = VC_CLUSTER_READ;
+  ch->vcs_push(this, VC_CLUSTER_READ);
+
+  return ClusterVConnectionBase::do_io_read(c, nbytes, buf);
+}
+
+VIO *
+ClusterVConnection::do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner)
+{
+  if (type == VC_CLUSTER)
+    type = VC_CLUSTER_WRITE;
+  ch->vcs_push(this, VC_CLUSTER_WRITE);
+
+  return ClusterVConnectionBase::do_io_write(c, nbytes, buf, owner);
+}
+
+void
+ClusterVConnection::do_io_close(int alerrno)
+{
+  if ((type == VC_CLUSTER) && current_cont) {
+    if (((CacheContinuation *)current_cont)->read_cluster_vc == this)
+      type = VC_CLUSTER_READ;
+    else if (((CacheContinuation *)current_cont)->write_cluster_vc == this)
+      type = VC_CLUSTER_WRITE;
+  }
+  ch->vcs_push(this, type);
+
+  ClusterVConnectionBase::do_io_close(alerrno);
+}
+
+int
+ClusterVConnection::startEvent(int event, Event * e)
+{
+  //
+  // Safe to call with e == NULL from the same thread.
+  //
+  (void) event;
+  start(e ? e->ethread : (EThread *) NULL);
+  return EVENT_DONE;
+}
+
+int
+ClusterVConnection::mainEvent(int event, Event * e)
+{
+  (void) event;
+  (void) e;
+  ink_assert(!"unexpected event");
+  return EVENT_DONE;
+}
+
+int
+ClusterVConnection::start(EThread * t)
+{
+  //
+  //  New channel connect protocol.  Establish VC locally and send the
+  //  channel id to the target.  Reverse of existing connect protocol
+  //
+  //////////////////////////////////////////////////////////////////////////
+  // In the new VC connect protocol, we always establish the local side
+  // of the connection followed by the remote side.
+  //
+  // Read connection notes:
+  // ----------------------
+  // The response message now consists of the standard reply message
+  // along with a portion of the  object data.  This data is always
+  // transferred in the same Cluster transfer message as channel data.
+  // In order to transfer data into a partially connected VC, we introduced
+  // a VC "pending_remote_fill" state allowing us to move the initial data
+  // using the existing user channel mechanism.
+  // Initially, both sides of the connection set "pending_remote_fill".
+  //
+  // "pending_remote_fill" allows us to make the following assumptions.
+  //   1) No free space messages are sent for VC(s) in this state.
+  //   2) Writer side, the initial write data is described by
+  //      vc->remote_write_block NOT by vc->write.vio.buffer, since
+  //      vc->write.vio is reserved for use in the OneWayTunnel.
+  //      OneWayTunnel is used when all the object data cannot be
+  //      contained in the initial send buffer.
+  //   3) Writer side, write vio mutex not acquired for initial data write.
+  ///////////////////////////////////////////////////////////////////////////
+
+  int status;
+  if (!channel) {
+#ifdef CLUSTER_TOMCAT
+    Ptr<ProxyMutex> m = action_.mutex;
+    if (!m) {
+      m = new_ProxyMutex();
+    }
+#else
+    Ptr<ProxyMutex> m = action_.mutex;
+#endif
+
+    // Establish the local side of the VC connection
+    MUTEX_TRY_LOCK(lock, m, t);
+    if (!lock) {
+      t->schedule_in(this, CLUSTER_CONNECT_RETRY);
+      return EVENT_DONE;
+    }
+    if (!ch) {
+      if (action_.continuation) {
+        action_.continuation->handleEvent(CLUSTER_EVENT_OPEN_FAILED, (void *) -ECLUSTER_NO_MACHINE);
+        clusterVCAllocator_free(this);
+        return EVENT_DONE;
+      } else {
+        // if we have been invoked immediately
+        clusterVCAllocator_free(this);
+        return -1;
+      }
+    }
+
+    channel = ch->alloc_channel(this);
+    if (channel < 0) {
+      if (action_.continuation) {
+        action_.continuation->handleEvent(CLUSTER_EVENT_OPEN_FAILED, (void *) -ECLUSTER_NOMORE_CHANNELS);
+        clusterVCAllocator_free(this);
+        return EVENT_DONE;
+      } else {
+        // if we have been invoked immediately
+        clusterVCAllocator_free(this);
+        return -1;
+      }
+
+    } else {
+      Debug(CL_TRACE, "VC start alloc local chan=%d VC=%p", channel, this);
+      if (new_connect_read)
+        this->pending_remote_fill = 1;
+    }
+
+  } else {
+    // Establish the remote side of the VC connection
+    if ((status = ch->alloc_channel(this, channel)) < 0) {
+      Debug(CL_TRACE, "VC start alloc remote failed chan=%d VC=%p", channel, this);
+      clusterVCAllocator_free(this);
+      return status;            // Channel active or no more channels
+    } else {
+      Debug(CL_TRACE, "VC start alloc remote chan=%d VC=%p", channel, this);
+      if (new_connect_read)
+        this->pending_remote_fill = 1;
+      this->iov_map = CLUSTER_IOV_NONE; // disable connect timeout
+    }
+  }
+  cluster_schedule(ch, this, &read);
+  cluster_schedule(ch, this, &write);
+  if (action_.continuation) {
+    action_.continuation->handleEvent(CLUSTER_EVENT_OPEN, this);
+  }
+  mutex = NULL;
+  return EVENT_DONE;
+}
+
+int
+ClusterVConnection::was_closed()
+{
+  return (closed && !close_disabled);
+}
+
+void
+ClusterVConnection::allow_close()
+{
+  close_disabled = 0;
+}
+
+void
+ClusterVConnection::disable_close()
+{
+  close_disabled = 1;
+}
+
+int
+ClusterVConnection::was_remote_closed()
+{
+  if (!byte_bank_q.head && !remote_close_disabled)
+    return remote_closed;
+  else
+    return 0;
+}
+
+void
+ClusterVConnection::allow_remote_close()
+{
+  remote_close_disabled = 0;
+}
+
+bool ClusterVConnection::schedule_write()
+{
+  //
+  // Schedule write if we have all data or current write data is
+  // at least DEFAULT_MAX_BUFFER_SIZE.
+  //
+  if (write_list) {
+    if ((closed < 0) || remote_closed) {
+      // User aborted connection, dump data.
+
+      write_list = 0;
+      write_list_tail = 0;
+      write_list_bytes = 0;
+
+      return false;
+    }
+
+    if (closed || (write_list_bytes >= DEFAULT_MAX_BUFFER_SIZE)) {
+      // No more data to write or buffer list is full, start write
+      return true;
+    } else {
+      // Buffer list is not full, defer write
+      return false;
+    }
+  } else {
+    return false;
+  }
+}
+
+void
+ClusterVConnection::set_type(int options)
+{
+  new_connect_read = (options & CLUSTER_OPT_CONN_READ) ? 1 : 0;
+  if (new_connect_read) {
+    pending_remote_fill = 1;
+  } else {
+    pending_remote_fill = 0;
+  }
+}
+
+// Overide functions in base class VConnection.
+bool ClusterVConnection::get_data(int id, void * /* data ATS_UNUSED */)
+{
+  switch (id) {
+  case CACHE_DATA_HTTP_INFO:
+    {
+      ink_release_assert(!"ClusterVConnection::get_data CACHE_DATA_HTTP_INFO not supported");
+    }
+  case CACHE_DATA_KEY:
+    {
+      ink_release_assert(!"ClusterVConnection::get_data CACHE_DATA_KEY not supported");
+    }
+  default:
+    {
+      ink_release_assert(!"ClusterVConnection::get_data invalid id");
+    }
+  }
+  return false;
+}
+
+void
+ClusterVConnection::get_http_info(CacheHTTPInfo ** info)
+{
+  *info = &alternate;
+}
+
+int64_t
+ClusterVConnection::get_object_size()
+{
+  return alternate.object_size_get();
+}
+
+bool
+ClusterVConnection::is_pread_capable()
+{
+  return false;
+}
+
+void
+ClusterVConnection::set_http_info(CacheHTTPInfo * d)
+{
+  int flen, len;
+  void *data;
+  int res;
+  SetChanDataMessage *m;
+  SetChanDataMessage msg;
+
+  //
+  // set_http_info() is a mechanism to associate additional data with a
+  // open_write() ClusterVConnection.  It is only allowed after a
+  // successful open_write() and prior to issuing the do_io(VIO::WRITE).
+  // Cache semantics dictate that set_http_info() be established prior
+  // to transferring any data on the ClusterVConnection.
+  //
+  ink_release_assert(this->write.vio.op == VIO::NONE);  // not true if do_io()
+  //   already done
+  ink_release_assert(this->read.vio.op == VIO::NONE);   // should always be true
+
+  int vers = SetChanDataMessage::protoToVersion(ch->machine->msg_proto_major);
+  if (vers == SetChanDataMessage::SET_CHANNEL_DATA_MESSAGE_VERSION) {
+    flen = SetChanDataMessage::sizeof_fixedlen_msg();
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"ClusterVConnection::set_http_info() bad msg version");
+  }
+
+  // Create message and marshal data.
+
+  CacheHTTPInfo *r = d;
+  len = r->marshal_length();
+  data = (void *) ALLOCA_DOUBLE(flen + len);
+  memcpy((char *) data, (char *) &msg, sizeof(msg));
+  m = (SetChanDataMessage *) data;
+  m->data_type = CACHE_DATA_HTTP_INFO;
+
+  char *p = (char *) m + flen;
+  res = r->marshal(p, len);
+  if (res < 0) {
+    r->destroy();
+    return;
+  }
+  r->destroy();
+
+  m->channel = channel;
+  m->sequence_number = token.sequence_number;
+
+  // note pending set_data() msgs on VC.
+  ink_atomic_increment(&n_set_data_msgs, 1);
+
+  clusterProcessor.invoke_remote(ch, SET_CHANNEL_DATA_CLUSTER_FUNCTION, data, flen + len);
+}
+
+bool ClusterVConnection::set_pin_in_cache(time_t t)
+{
+  SetChanPinMessage msg;
+
+  //
+  // set_pin_in_cache() is a mechanism to set an attribute on a
+  // open_write() ClusterVConnection.  It is only allowed after a
+  // successful open_write() and prior to issuing the do_io(VIO::WRITE).
+  //
+  ink_release_assert(this->write.vio.op == VIO::NONE);  // not true if do_io()
+  //   already done
+  ink_release_assert(this->read.vio.op == VIO::NONE);   // should always be true
+  time_pin = t;
+
+  int vers = SetChanPinMessage::protoToVersion(ch->machine->msg_proto_major);
+
+  if (vers == SetChanPinMessage::SET_CHANNEL_PIN_MESSAGE_VERSION) {
+    SetChanPinMessage::sizeof_fixedlen_msg();
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"ClusterVConnection::set_pin_in_cache() bad msg " "version");
+  }
+  msg.channel = channel;
+  msg.sequence_number = token.sequence_number;
+  msg.pin_time = time_pin;
+
+  // note pending set_data() msgs on VC.
+  ink_atomic_increment(&n_set_data_msgs, 1);
+
+  clusterProcessor.invoke_remote(ch, SET_CHANNEL_PIN_CLUSTER_FUNCTION, (char *) &msg, sizeof(msg));
+  return true;
+}
+
+time_t ClusterVConnection::get_pin_in_cache()
+{
+  return time_pin;
+}
+
+bool ClusterVConnection::set_disk_io_priority(int priority)
+{
+  SetChanPriorityMessage msg;
+
+  //
+  // set_disk_io_priority() is a mechanism to set an attribute on a
+  // open_write() ClusterVConnection.  It is only allowed after a
+  // successful open_write() and prior to issuing the do_io(VIO::WRITE).
+  //
+  ink_release_assert(this->write.vio.op == VIO::NONE);  // not true if do_io()
+  //   already done
+  ink_release_assert(this->read.vio.op == VIO::NONE);   // should always be true
+  disk_io_priority = priority;
+
+  int vers = SetChanPriorityMessage::protoToVersion(ch->machine->msg_proto_major);
+
+  if (vers == SetChanPriorityMessage::SET_CHANNEL_PRIORITY_MESSAGE_VERSION) {
+    SetChanPriorityMessage::sizeof_fixedlen_msg();
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"ClusterVConnection::set_disk_io_priority() bad msg " "version");
+  }
+  msg.channel = channel;
+  msg.sequence_number = token.sequence_number;
+  msg.disk_priority = priority;
+
+  // note pending set_data() msgs on VC.
+  ink_atomic_increment(&n_set_data_msgs, 1);
+
+  clusterProcessor.invoke_remote(ch, SET_CHANNEL_PRIORITY_CLUSTER_FUNCTION, (char *) &msg, sizeof(msg));
+  return true;
+}
+
+int
+ClusterVConnection::get_disk_io_priority()
+{
+  return disk_io_priority;
+}
+
+// End of ClusterVConnection.cc
diff --git a/iocore/cluster/Inline.cc b/iocore/cluster/Inline.cc
new file mode 100644
index 00000000..63ce7133
--- /dev/null
+++ b/iocore/cluster/Inline.cc
@@ -0,0 +1,30 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using the public interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_Cluster.h"
diff --git a/iocore/cluster/Makefile.am b/iocore/cluster/Makefile.am
new file mode 100644
index 00000000..19bf843f
--- /dev/null
+++ b/iocore/cluster/Makefile.am
@@ -0,0 +1,61 @@
+# Makefile.am for the traffic/iocore/cluster hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+noinst_LIBRARIES = libinkcluster.a
+
+libinkcluster_a_SOURCES = \
+  ClusterAPI.cc \
+  ClusterCache.cc \
+  ClusterConfig.cc \
+  ClusterHandler.cc \
+  ClusterHandlerBase.cc \
+  ClusterHash.cc \
+  ClusterLib.cc \
+  ClusterLoadMonitor.cc \
+  ClusterMachine.cc \
+  ClusterProcessor.cc \
+  ClusterRPC.cc \
+  ClusterVConnection.cc \
+  Inline.cc \
+  P_Cluster.h \
+  P_ClusterCache.h \
+  P_ClusterCacheInternal.h \
+  P_ClusterHandler.h \
+  P_ClusterInline.h \
+  P_ClusterInternal.h \
+  P_ClusterLib.h \
+  P_ClusterLoadMonitor.h \
+  P_ClusterMachine.h \
+  P_TimeTrace.h
+
+#test_Cluster_SOURCES = \
+#  test_I_Cluster.cc \
+#  test_P_Cluster.cc
diff --git a/iocore/cluster/Makefile.in b/iocore/cluster/Makefile.in
new file mode 100644
index 00000000..ce9ffdf5
--- /dev/null
+++ b/iocore/cluster/Makefile.in
@@ -0,0 +1,915 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/cluster hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
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+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
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+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
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+
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+
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+
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+
+install-man:
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+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
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+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+#test_Cluster_SOURCES = \
+#  test_I_Cluster.cc \
+#  test_P_Cluster.cc
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/iocore/cluster/P_Cluster.h b/iocore/cluster/P_Cluster.h
new file mode 100644
index 00000000..aa3d6a5d
--- /dev/null
+++ b/iocore/cluster/P_Cluster.h
@@ -0,0 +1,142 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_CLUSTER_H__
+#define _P_CLUSTER_H__
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "I_RecProcess.h"
+#include "P_Net.h"
+#include "P_Cache.h"
+
+#ifdef HTTP_CACHE
+#include "MIME.h"
+#include "HTTP.h"
+// #include "HttpTransactCache.h"
+#endif
+
+#include "P_ClusterMachine.h"
+#include "P_ClusterCache.h"
+#include "P_ClusterCacheInternal.h"
+#include "P_ClusterInternal.h"
+#include "P_ClusterHandler.h"
+#include "P_ClusterInline.h"
+#include "P_ClusterLib.h"
+#include "P_ClusterLoadMonitor.h"
+#include "P_TimeTrace.h"
+
+
+#define ECLUSTER_NO_VC                    (CLUSTER_ERRNO+0)
+#define ECLUSTER_NO_MACHINE               (CLUSTER_ERRNO+1)
+#define ECLUSTER_OP_TIMEOUT               (CLUSTER_ERRNO+2)
+#define ECLUSTER_ORB_DATA_READ            (CLUSTER_ERRNO+3)
+#define ECLUSTER_ORB_EIO                  (CLUSTER_ERRNO+4)
+#define ECLUSTER_CHANNEL_INUSE            (CLUSTER_ERRNO+5)
+#define ECLUSTER_NOMORE_CHANNELS          (CLUSTER_ERRNO+6)
+
+int init_clusterprocessor(void);
+enum
+{
+  CLUSTER_CONNECTIONS_OPEN_STAT,
+  CLUSTER_CONNECTIONS_OPENNED_STAT,
+  CLUSTER_CON_TOTAL_TIME_STAT,
+  CLUSTER_CTRL_MSGS_SENT_STAT,
+  CLUSTER_SLOW_CTRL_MSGS_SENT_STAT,
+  CLUSTER_CTRL_MSGS_RECVD_STAT,
+  CLUSTER_SLOW_CTRL_MSGS_RECVD_STAT,
+  CLUSTER_CTRL_MSGS_SEND_TIME_STAT,
+  CLUSTER_CTRL_MSGS_RECV_TIME_STAT,
+  CLUSTER_READ_BYTES_STAT,
+  CLUSTER_WRITE_BYTES_STAT,
+  CLUSTER_OP_DELAYED_FOR_LOCK_STAT,
+  CLUSTER_CONNECTIONS_READ_LOCKED_STAT,
+  CLUSTER_CONNECTIONS_WRITE_LOCKED_STAT,
+  CLUSTER_CONNECTIONS_BUMPED_STAT,
+  CLUSTER_NODES_STAT,
+  CLUSTER_NET_BACKUP_STAT,
+  CLUSTER_MACHINES_ALLOCATED_STAT,
+  CLUSTER_MACHINES_FREED_STAT,
+  CLUSTER_CONFIGURATION_CHANGES_STAT,
+  CLUSTER_DELAYED_READS_STAT,
+  CLUSTER_BYTE_BANK_USED_STAT,
+  CLUSTER_ALLOC_DATA_NEWS_STAT,
+  CLUSTER_WRITE_BB_MALLOCS_STAT,
+  CLUSTER_PARTIAL_READS_STAT,
+  CLUSTER_PARTIAL_WRITES_STAT,
+  CLUSTER_CACHE_OUTSTANDING_STAT,
+  CLUSTER_REMOTE_OP_TIMEOUTS_STAT,
+  CLUSTER_REMOTE_OP_REPLY_TIMEOUTS_STAT,
+  CLUSTER_CHAN_INUSE_STAT,
+  CLUSTER_OPEN_DELAYS_STAT,
+  CLUSTER_OPEN_DELAY_TIME_STAT,
+  CLUSTER_CACHE_CALLBACKS_STAT,
+  CLUSTER_CACHE_CALLBACK_TIME_STAT,
+  CLUSTER_THREAD_STEAL_EXPIRES_STAT,
+  CLUSTER_RDMSG_ASSEMBLE_TIME_STAT,
+  CLUSTER_PING_TIME_STAT,
+  cluster_setdata_no_CLUSTERVC_STAT,
+  CLUSTER_SETDATA_NO_TUNNEL_STAT,
+  CLUSTER_SETDATA_NO_CACHEVC_STAT,
+  cluster_setdata_no_CLUSTER_STAT,
+  CLUSTER_VC_WRITE_STALL_STAT,
+  CLUSTER_NO_REMOTE_SPACE_STAT,
+  CLUSTER_LEVEL1_BANK_STAT,
+  CLUSTER_MULTILEVEL_BANK_STAT,
+  CLUSTER_VC_CACHE_INSERT_LOCK_MISSES_STAT,
+  CLUSTER_VC_CACHE_INSERTS_STAT,
+  CLUSTER_VC_CACHE_LOOKUP_LOCK_MISSES_STAT,
+  CLUSTER_VC_CACHE_LOOKUP_HITS_STAT,
+  CLUSTER_VC_CACHE_LOOKUP_MISSES_STAT,
+  CLUSTER_VC_CACHE_SCANS_STAT,
+  CLUSTER_VC_CACHE_SCAN_LOCK_MISSES_STAT,
+  CLUSTER_VC_CACHE_PURGES_STAT,
+  CLUSTER_WRITE_LOCK_MISSES_STAT,
+  CLUSTER_CACHE_RMT_CALLBACK_TIME_STAT,
+  CLUSTER_CACHE_LKRMT_CALLBACK_TIME_STAT,
+  CLUSTER_LOCAL_CONNECTION_TIME_STAT,
+  CLUSTER_REMOTE_CONNECTION_TIME_STAT,
+  CLUSTER_SETDATA_NO_CLUSTERVC_STAT,
+  CLUSTER_SETDATA_NO_CLUSTER_STAT,
+  CLUSTER_VC_READ_LIST_LEN_STAT,
+  CLUSTER_VC_WRITE_LIST_LEN_STAT,
+  cluster_stat_count
+};
+
+extern RecRawStatBlock *cluster_rsb;
+#define CLUSTER_INCREMENT_DYN_STAT(x) \
+	RecIncrRawStat(cluster_rsb, mutex->thread_holding, (int) x, 1);
+#define CLUSTER_DECREMENT_DYN_STAT(x) \
+	RecIncrRawStat(cluster_rsb, mutex->thread_holding, (int) x, -1);
+#define CLUSTER_SUM_DYN_STAT(x, y) \
+	RecIncrRawStat(cluster_rsb, mutex->thread_holding, (int) x, y);
+#define CLUSTER_SUM_GLOBAL_DYN_STAT(x, y) \
+	RecIncrGlobalRawStatSum(cluster_rsb,x,y)
+#define CLUSTER_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(cluster_rsb, x, 0); \
+	RecSetRawStatCount(cluster_rsb, x, 0); \
+} while (0);
+
+
+#endif
diff --git a/iocore/cluster/P_ClusterCache.h b/iocore/cluster/P_ClusterCache.h
new file mode 100644
index 00000000..5d6b0b98
--- /dev/null
+++ b/iocore/cluster/P_ClusterCache.h
@@ -0,0 +1,1172 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Cluster.h
+
+
+****************************************************************************/
+
+#ifndef _P_Cluster_Cache_h
+#define _P_Cluster_Cache_h
+
+//*****************************************************************************
+// Initially derived from Cluster.h "1.77.2.11 1999/01/21 03:24:10"
+//*****************************************************************************
+
+/****************************************************************************/
+// #define LOCAL_CLUSTER_TEST_MODE 1
+// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//  Set the above #define to enable local clustering.  "Local clustering"
+//  is a test only mode where all cluster nodes reside on the same host.
+//
+//  Configuration notes:
+//   - For "cluster.config" entries, always use "127.0.0.1" as the IP
+//     address and select a host unique cluster port.
+//
+//  Restrictions:
+//   1) Does not work with the manager.  You must only run with the server
+//      and hand configure "cluster.config".
+//   2) Currently, this has only been tested in a two node configuration.
+//
+/****************************************************************************/
+
+#include "P_ClusterMachine.h"
+
+//
+// Cluster Processor
+//
+// - monitors the status of the cluster
+// - provides communication between machines in the cluster
+// - provides callbacks to other processors when the cluster configuration
+//   changes
+//
+#define CLUSTER_MAJOR_VERSION               3
+#define CLUSTER_MINOR_VERSION               2
+
+// Lowest supported major/minor cluster version
+#define MIN_CLUSTER_MAJOR_VERSION	    CLUSTER_MAJOR_VERSION
+#define MIN_CLUSTER_MINOR_VERSION  	    CLUSTER_MINOR_VERSION
+
+
+#define DEFAULT_CLUSTER_PORT_NUMBER         0
+#define DEFAULT_NUMBER_OF_CLUSTER_THREADS   1
+#define DEFAULT_CLUSTER_HOST                ""
+
+#define MAX_CLUSTER_SEND_LENGTH             INT_MAX
+
+#define CLUSTER_MAX_MACHINES                256
+// less than 1% disparity at 255 machines, 32707 is prime less than 2^15
+#define CLUSTER_HASH_TABLE_SIZE             32707
+
+// after timeout the configuration is "dead"
+#define CLUSTER_CONFIGURATION_TIMEOUT       HRTIME_DAY
+// after zombie the configuration is deleted
+#define CLUSTER_CONFIGURATION_ZOMBIE        (HRTIME_DAY*2)
+
+
+// the number of configurations into the past we probe for data
+// one allows a new machine to come into or fall out of the
+// cluster without loss of data.  If the data is redistributed within
+// one day, no data will be lost.
+#define CONFIGURATION_HISTORY_PROBE_DEPTH   1
+
+
+// move these to a central event definition file (Event.h)
+#define CLUSTER_EVENT_CHANGE            (CLUSTER_EVENT_EVENTS_START)
+#define CLUSTER_EVENT_CONFIGURATION     (CLUSTER_EVENT_EVENTS_START+1)
+#define CLUSTER_EVENT_OPEN              (CLUSTER_EVENT_EVENTS_START+2)
+#define CLUSTER_EVENT_OPEN_EXISTS       (CLUSTER_EVENT_EVENTS_START+3)
+#define CLUSTER_EVENT_OPEN_FAILED       (CLUSTER_EVENT_EVENTS_START+4)
+
+// internal event code
+#define CLUSTER_EVENT_STEAL_THREAD      (CLUSTER_EVENT_EVENTS_START+50)
+
+//////////////////////////////////////////////////////////////
+// Miscellaneous byte swap routines
+//////////////////////////////////////////////////////////////
+inline void
+ats_swap16(uint16_t * d)
+{
+  unsigned char *p = (unsigned char *) d;
+  *d = ((p[1] << 8) | p[0]);
+}
+
+inline uint16_t
+ats_swap16(uint16_t d)
+{
+  ats_swap16(&d);
+  return d;
+}
+
+inline void
+ats_swap32(uint32_t * d)
+{
+  unsigned char *p = (unsigned char *) d;
+  *d = ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
+}
+
+inline uint32_t
+ats_swap32(uint32_t d)
+{
+  ats_swap32(&d);
+  return d;
+}
+
+inline void
+ats_swap64(uint64_t * d)
+{
+  unsigned char *p = (unsigned char *) d;
+  *d = (((uint64_t) p[7] << 56) | ((uint64_t) p[6] << 48) |
+        ((uint64_t) p[5] << 40) | ((uint64_t) p[4] << 32) |
+        ((uint64_t) p[3] << 24) | ((uint64_t) p[2] << 16) | ((uint64_t) p[1] << 8) | (uint64_t) p[0]);
+}
+
+inline uint64_t
+ats_swap64(uint64_t d)
+{
+  ats_swap64(&d);
+  return d;
+}
+
+//////////////////////////////////////////////////////////////
+
+struct ClusterConfiguration
+{
+  int n_machines;
+  ClusterMachine *machines[CLUSTER_MAX_MACHINES];
+
+  ClusterMachine *machine_hash(unsigned int hash_value)
+  {
+    return machines[hash_table[hash_value % CLUSTER_HASH_TABLE_SIZE]];
+  }
+
+  ClusterMachine *find(unsigned int ip, int port = 0) {
+    for (int i = 0; i < n_machines; i++)
+      if (ip == machines[i]->ip && (!port || !machines[i]->cluster_port || machines[i]->cluster_port == port))
+        return machines[i];
+    return NULL;
+  }
+
+  //
+  // Private
+  //
+  ClusterConfiguration();
+  unsigned char hash_table[CLUSTER_HASH_TABLE_SIZE];
+  ink_hrtime changed;
+  SLINK(ClusterConfiguration, link);
+};
+
+inline bool
+machine_in_vector(ClusterMachine * m, ClusterMachine ** mm, int len)
+{
+  for (int i = 0; i < len; i++)
+    if (m == mm[i])
+      return true;
+  return false;
+}
+
+//
+// Returns either a machine or NULL.
+// Finds a machine starting at probe_depth going up to
+//    CONFIGURATION_HISTORY_PROBE_DEPTH
+// which is up, not the current machine and has not yet been probed.
+// Updates: probe_depth and past_probes.
+//
+inkcoreapi ClusterMachine *cluster_machine_at_depth(unsigned int hash, int *probe_depth = NULL,
+                                                    ClusterMachine ** past_probes = NULL);
+
+//
+// Cluster
+//   A cluster of machines which act as a single cache.
+//
+struct Cluster
+{
+  //
+  // Public Interface
+  //
+
+  //
+  // Cluster Hash Function
+  //
+
+  // Takes a hash value to a machine.  The hash function has the following
+  // properties:
+  //   1 - it divides input domain into the output range evenly (within 1%)
+  //   2 - it tends to produce the same Machine for the same hash_value's
+  //       for different configurations
+  //   3 - it produces the hash same function for a given configuration of
+  //       machines independent of the order they were added or removed
+  //       from the cluster.  (it is a pure function of the configuration)
+  //   Thread-safe
+  //
+  ClusterMachine *machine_hash(unsigned int hash_value)
+  {
+    return current_configuration()->machine_hash(hash_value);
+  }
+
+  //
+  // Cluster Configuration
+  //
+
+  // Register callback for a cluster configuration change.
+  // calls cont->handleEvent(EVENT_CLUSTER_CHANGE);
+  //   Thread-safe
+  //
+  void cluster_change_callback(Continuation * cont);
+
+  // Return the current configuration
+  //   Thread-safe
+  //
+  ClusterConfiguration *current_configuration()
+  {
+    return configurations.head;
+  }
+
+  // Return the previous configuration.
+  // Use from within the cluster_change_callback.
+  //   Thread-safe
+  //
+  ClusterConfiguration *previous_configuration()
+  {
+    return configurations.head->link.next;
+  }
+
+  //
+  // Private
+  //
+  // The configurations are updated only in the thread which is
+  // accepting cluster connections.
+  //
+  SLL<ClusterConfiguration> configurations;
+
+  Cluster();
+};
+
+//
+// ClusterVCToken
+//   An token passed between nodes to represent a virtualized connection.
+//   (see ClusterProcessor::alloc_remote() and attach_remote() below)
+//
+struct ClusterVCToken
+{
+  //
+  // Marshal this data to send the token across the cluster
+  //
+  uint32_t ip_created;
+  uint32_t ch_id;
+  uint32_t sequence_number;
+
+  bool is_clear()
+  {
+    return !ip_created;
+  }
+  void clear()
+  {
+    ip_created = 0;
+    sequence_number = 0;
+  }
+
+  ClusterVCToken(unsigned int aip = 0, unsigned int id = 0, unsigned int aseq = 0)
+:  ip_created(aip), ch_id(id), sequence_number(aseq) {
+  }
+  //
+  // Private
+  //
+  void alloc();
+
+  inline void SwapBytes()
+  {
+    ats_swap32(&ch_id);
+    ats_swap32(&sequence_number);
+  }
+};
+
+//
+// ClusterFunctionPtr
+//   A pointer to a procedure which can be invoked accross the cluster.
+//   This must be registered.
+//
+typedef void ClusterFunction(ClusterHandler * ch, void *data, int len);
+typedef ClusterFunction *ClusterFunctionPtr;
+
+struct ClusterVConnectionBase;
+
+struct ClusterVConnState
+{
+  //
+  // Private
+  //
+  volatile int enabled;
+  // multiples of XXX_PERIOD, high = less often
+  int priority;
+  VIO vio;
+  void *queue;
+  int ifd;
+  Event *delay_timeout;
+  Link<ClusterVConnectionBase> link;
+
+  // void enqueue(void * q, ClusterVConnection * vc);
+  ClusterVConnState();
+};
+
+struct ClusterVConnectionBase: public CacheVConnection
+{
+  //
+  // Initiate an IO operation.
+  // "data" is unused.
+  // Only one READ and one WRITE may be active at one time.
+  //   THREAD-SAFE, may be called when not handling an event from
+  //                the ClusterVConnectionBase, or the ClusterVConnectionBase
+  //                creation callback.
+  //
+
+  virtual VIO *do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf);
+  virtual VIO *do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner = false);
+  virtual void do_io_shutdown(ShutdownHowTo_t howto)
+  {
+    (void) howto;
+    ink_assert(!"shutdown of cluster connection");
+  }
+  virtual void do_io_close(int lerrno = -1);
+  virtual VIO* do_io_pread(Continuation*, int64_t, MIOBuffer*, int64_t);
+
+  // Set the timeouts associated with this connection.
+  // active_timeout is for the total elasped time of the connection.
+  // inactivity_timeout is the elapsed time *while an operation was
+  //   enabled* during which the connection was unable to sink/provide data.
+  // calling these functions repeatedly resets the timeout.
+  //   NOT THREAD-SAFE, may only be called when handing an event from this
+  //                    ClusterVConnectionBase, or the ClusterVConnectionBase
+  //                    creation callback.
+  //
+  void set_active_timeout(ink_hrtime timeout_in);
+  void set_inactivity_timeout(ink_hrtime timeout_in);
+  void cancel_active_timeout();
+  void cancel_inactivity_timeout();
+
+  ClusterVConnectionBase();
+
+#ifdef DEBUG
+  // Class static data
+  static int enable_debug_trace;
+#endif
+  Action action_;
+  EThread *thread;
+  volatile int closed;
+  ClusterVConnState read;
+  ClusterVConnState write;
+  LINKM(ClusterVConnectionBase, read, link)
+  LINKM(ClusterVConnectionBase, write, link)
+  ink_hrtime inactivity_timeout_in;
+  ink_hrtime active_timeout_in;
+  Event *inactivity_timeout;
+  Event *active_timeout;
+
+  virtual void reenable(VIO *);
+  virtual void reenable_re(VIO *);
+};
+
+inline void
+ClusterVConnectionBase::set_active_timeout(ink_hrtime timeout)
+{
+  active_timeout_in = timeout;
+  if (active_timeout) {
+    ink_assert(!active_timeout->cancelled);
+    if (active_timeout->ethread == this_ethread())
+      active_timeout->schedule_in(timeout);
+    else {
+      active_timeout->cancel(this);
+      active_timeout = thread->schedule_in(this, timeout);
+    }
+  } else {
+    if (thread) {
+      active_timeout = thread->schedule_in(this, timeout);
+    }
+  }
+}
+
+inline void
+ClusterVConnectionBase::set_inactivity_timeout(ink_hrtime timeout)
+{
+  inactivity_timeout_in = timeout;
+  if (inactivity_timeout) {
+    ink_assert(!inactivity_timeout->cancelled);
+    if (inactivity_timeout->ethread == this_ethread())
+      inactivity_timeout->schedule_in(timeout);
+    else {
+      inactivity_timeout->cancel(this);
+      inactivity_timeout = thread->schedule_in(this, timeout);
+    }
+  } else {
+    if (thread) {
+      inactivity_timeout = thread->schedule_in(this, timeout);
+    }
+  }
+}
+
+inline void
+ClusterVConnectionBase::cancel_active_timeout()
+{
+  if (active_timeout) {
+    active_timeout->cancel(this);
+    active_timeout = NULL;
+    active_timeout_in = 0;
+  }
+}
+
+inline void
+ClusterVConnectionBase::cancel_inactivity_timeout()
+{
+  if (inactivity_timeout) {
+    inactivity_timeout->cancel(this);
+    inactivity_timeout = NULL;
+    inactivity_timeout_in = 0;
+  }
+}
+
+// Data debt owed to VC which is deferred due to lock miss
+class ByteBankDescriptor
+{
+public:
+  ByteBankDescriptor()
+  {
+  }
+  IOBufferBlock *get_block()
+  {
+    return block;
+  }
+
+  static ByteBankDescriptor *ByteBankDescriptor_alloc(IOBufferBlock *);
+  static void ByteBankDescriptor_free(ByteBankDescriptor *);
+
+public:
+  LINK(ByteBankDescriptor, link);
+
+private:
+  Ptr<IOBufferBlock> block;  // holder of bank bytes
+};
+
+enum TypeVConnection
+{
+  VC_NULL,
+  VC_CLUSTER,
+  VC_CLUSTER_READ,
+  VC_CLUSTER_WRITE,
+  VC_CLUSTER_CLOSED
+};
+
+//
+// ClusterVConnection
+//
+struct ClusterVConnection: public ClusterVConnectionBase
+{
+  //
+  // Public Interface (included from ClusterVConnectionBase)
+  //
+  // Thread-safe  (see Net.h for details)
+  //
+  // virtual VIO * do_io(
+  //   int                   op,
+  //   Continuation        * c = NULL,
+  //   int                   nbytes = INT64_MAX,
+  //   MIOBuffer           * buf = 0,
+  //   int                   whence = SEEK_CUR);
+  //
+  // NOT Thread-safe (see Net.h for details)
+  //
+  // void set_active_timeout(ink_hrtime timeout_in);
+  // void set_inactivity_timeout(ink_hrtime timeout_in);
+
+  //
+  // Private
+  //
+
+  int startEvent(int event, Event * e);
+  int mainEvent(int event, Event * e);
+
+  // 0 on success -1 on failure
+  int start(EThread * t);       // New connect protocol
+
+  ClusterVConnection(int is_new_connect_read = 0);
+  ~ClusterVConnection();
+  void free();                  // Destructor actions (we are using ClassAllocator)
+
+  virtual void do_io_close(int lerrno = -1);
+  virtual VIO *do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf);
+  virtual VIO *do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner = false);
+  virtual void reenable(VIO *vio);
+
+  ClusterHandler *ch;
+  //
+  //  Read Channel: (new_connect_read == true)
+  //     - open_local()    caller is reader
+  //     - connect_local() caller is writer
+  //
+  //  Write Channel: (new_connect_read == false)
+  //     - open_local()    caller is writer
+  //     - connect_local() caller is reader
+  //
+  int new_connect_read;         // Data flow direction wrt origin node
+  int remote_free;
+  int last_local_free;
+  int channel;
+  ClusterVCToken token;
+  volatile int close_disabled;
+  volatile int remote_closed;
+  volatile int remote_close_disabled;
+  volatile int remote_lerrno;
+  volatile uint32_t in_vcs;
+  volatile uint32_t type;
+  SLINK(ClusterVConnection, ready_alink);
+  int was_closed();
+  void allow_close();
+  void disable_close();
+  int was_remote_closed();
+  void allow_remote_close();
+  bool schedule_write();
+  void set_type(int);
+  ink_hrtime start_time;
+  ink_hrtime last_activity_time;
+  Queue<ByteBankDescriptor> byte_bank_q;   // done awaiting completion
+  int n_set_data_msgs;          // # pending set_data() msgs on VC
+  int n_recv_set_data_msgs;     // # set_data() msgs received on VC
+  volatile int pending_remote_fill;     // Remote fill pending on connection
+  Ptr<IOBufferBlock> read_block;   // Hold current data for open read
+  bool remote_ram_cache_hit;    // Entire object was from remote ram cache
+  bool have_all_data;           // All data in read_block
+  int initial_data_bytes;       // bytes in open_read buffer
+  Ptr<IOBufferBlock> remote_write_block;   // Write side data for remote fill
+  void *current_cont;           // Track current continuation (debug)
+
+#define CLUSTER_IOV_NOT_OPEN               -2
+#define CLUSTER_IOV_NONE                   -1
+  int iov_map;                  // which iov?
+
+  Ptr<ProxyMutex> read_locked;
+  Ptr<ProxyMutex> write_locked;
+
+  // Data buffer for unmarshaled objects from remote node.
+  Ptr<IOBufferData> marshal_buf;
+
+  // Pending write data
+  Ptr<IOBufferBlock> write_list;
+  IOBufferBlock *write_list_tail;
+  int write_list_bytes;
+  int write_bytes_in_transit;
+
+  CacheHTTPInfo alternate;
+  time_t time_pin;
+  int disk_io_priority;
+  void set_remote_fill_action(Action *);
+
+  // Indicates whether a cache hit was from an peering cluster cache
+  bool is_ram_cache_hit() const { return remote_ram_cache_hit; };
+  void set_ram_cache_hit(bool remote_hit) { remote_ram_cache_hit = remote_hit; }
+
+  // For VC(s) established via OPEN_READ, we are passed a CacheHTTPInfo
+  //  in the reply.
+  virtual bool get_data(int id, void *data);    // backward compatibility
+  virtual void get_http_info(CacheHTTPInfo **);
+  virtual int64_t get_object_size();
+  virtual bool is_pread_capable();
+
+  // For VC(s) established via the HTTP version of OPEN_WRITE, additional
+  //  data for the VC is passed in a second message.  This additional
+  //  data has a lifetime equal to the cache VC
+  virtual void set_http_info(CacheHTTPInfo *);
+
+  virtual bool set_pin_in_cache(time_t time_pin);
+  virtual time_t get_pin_in_cache();
+  virtual bool set_disk_io_priority(int priority);
+  virtual int get_disk_io_priority();
+  virtual int get_header(void **ptr, int *len);
+  virtual int set_header(void *ptr, int len);
+  virtual int get_single_data(void **ptr, int *len);
+};
+
+//
+// Cluster operation options
+//
+#define CLUSTER_OPT_STEAL             0x0001    // allow thread stealing
+#define CLUSTER_OPT_IMMEDIATE         0x0002    // require immediate response
+#define CLUSTER_OPT_ALLOW_IMMEDIATE   0x0004    // allow immediate response
+#define CLUSTER_OPT_DELAY             0x0008    // require delayed response
+#define CLUSTER_OPT_CONN_READ         0x0010    // new conn read
+#define CLUSTER_OPT_CONN_WRITE        0x0020    // new conn write
+#define CLUSTER_OPT_DATA_IS_OCONTROL  0x0040    // data in OutgoingControl
+#define CLUSTER_FUNCTION_MALLOCED     -1
+
+struct ClusterRemoteDataHeader
+{
+  int32_t cluster_function;
+};
+//
+// ClusterProcessor
+//
+class ClusterAccept;
+
+struct ClusterProcessor
+{
+  //
+  // Public Interface
+  //
+
+  // Invoke a function on a remote node
+  //   marshal your own data, provide a continuation for timeouts and errors
+  //
+  // Options: CLUSTER_OPT_DELAY, CLUSTER_OPT_STEAL, CLUSTER_OPT_DATA_IS_OCONTROL
+  // Returns: 1 for immediate send, 0 for delayed, -1 for error
+
+  int invoke_remote(ClusterHandler *ch, int cluster_fn_index, void *data, int len, int options = CLUSTER_OPT_STEAL);
+
+  int invoke_remote_data(ClusterHandler *ch, int cluster_fn_index,
+                         void *data, int data_len,
+                         IOBufferBlock * buf,
+                         int logical_channel, ClusterVCToken * token,
+                         void (*bufdata_free) (void *), void *bufdata_free_arg, int options = CLUSTER_OPT_STEAL);
+
+  // Pass the data in as a malloc'ed block to be freed by callee
+  int invoke_remote_malloced(ClusterHandler *ch, ClusterRemoteDataHeader * data, int len /* including header */ )
+  {
+    return invoke_remote(ch, CLUSTER_FUNCTION_MALLOCED, data, len);
+  }
+  void free_remote_data(char *data, int len);
+
+  // Allocate the local side of a remote VConnection.
+  // returns a token which can be passed to the remote side
+  // through an existing link and passed to attach_remoteVC()
+  // if CLUSTER_OPT_IMMEDIATE is set, CLUSTER_DELAYED_OPEN will not be returned
+  //
+  // Options: CLUSTER_OPT_IMMEDIATE, CLUSTER_OPT_ALLOW_IMMEDIATE
+  // Returns: pointer for CLUSTER_OPT_IMMEDIATE
+  //            or CLUSTER_DELAYED_OPEN on success,
+  //          NULL on failure
+  // calls:  cont->handleEvent( CLUSTER_EVENT_OPEN, ClusterVConnection *)
+  //         on delayed success.
+  //
+  // NOTE: the CLUSTER_EVENT_OPEN may be called before "open/connect" returns
+
+#define CLUSTER_DELAYED_OPEN       ((ClusterVConnection*)-1)
+#define CLUSTER_NODE_DOWN          ((ClusterVConnection*)-2)
+  ClusterVConnection *open_local(Continuation * cont, ClusterMachine * mp, ClusterVCToken & token, int options = 0);
+
+  // Get the other side of a remote VConnection which was previously
+  // allocated with open.
+  //
+  // Options: CLUSTER_OPT_IMMEDIATE, CLUSTER_OPT_ALLOW_IMMEDIATE
+  // return a pointer or CLUSTER_DELAYED_OPEN success, NULL on failure
+  //
+  ClusterVConnection *connect_local(Continuation * cont, ClusterVCToken * token, int channel, int options = 0);
+  inkcoreapi bool disable_remote_cluster_ops(ClusterMachine *);
+
+  //
+  // Processor interface
+  //
+  virtual int init();
+  virtual int start();
+
+  ClusterProcessor();
+  virtual ~ ClusterProcessor();
+
+  //
+  // Private
+  //
+  ClusterAccept *accept_handler;
+  Cluster *this_cluster;
+  // Connect to a new cluster machine
+  void connect(char *hostname, int16_t id = -1);
+  void connect(unsigned int ip, int port = 0, int16_t id = -1, bool delay = false);
+  // send the list of known machines to new machine
+  void send_machine_list(ClusterMachine * m);
+  void compute_cluster_mode();
+  // Internal invoke_remote interface
+  int internal_invoke_remote(ClusterHandler * m, int cluster_fn, void *data, int len, int options, void *cmsg);
+};
+
+inkcoreapi extern ClusterProcessor clusterProcessor;
+
+inline Cluster *
+this_cluster()
+{
+  return clusterProcessor.this_cluster;
+}
+
+//
+// Set up a thread to receive events from the ClusterProcessor
+// This function should be called for all threads created to
+// accept such events by the EventProcesor.
+//
+void initialize_thread_for_cluster(EThread * thread);
+
+//
+// ClusterFunction Registry
+//
+//   Declare an instance of this class here to register
+//   a function.   In order to allow older versions of software
+//   to co-exist with newer versions, always add to the bottom
+//   of the list.
+//
+
+extern ClusterFunction *ptest_ClusterFunction;
+
+extern ClusterFunction test_ClusterFunction;
+extern ClusterFunction ping_ClusterFunction;
+extern ClusterFunction ping_reply_ClusterFunction;
+extern ClusterFunction machine_list_ClusterFunction;
+extern ClusterFunction close_channel_ClusterFunction;
+extern ClusterFunction get_hostinfo_ClusterFunction;
+extern ClusterFunction put_hostinfo_ClusterFunction;
+extern ClusterFunction cache_lookup_ClusterFunction;
+extern ClusterFunction cache_op_ClusterFunction;
+extern ClusterFunction cache_op_malloc_ClusterFunction;
+extern ClusterFunction cache_op_result_ClusterFunction;
+extern ClusterFunction set_channel_data_ClusterFunction;
+extern ClusterFunction post_setchan_send_ClusterFunction;
+extern ClusterFunction set_channel_pin_ClusterFunction;
+extern ClusterFunction post_setchan_pin_ClusterFunction;
+extern ClusterFunction set_channel_priority_ClusterFunction;
+extern ClusterFunction post_setchan_priority_ClusterFunction;
+extern ClusterFunction default_api_ClusterFunction;
+
+struct ClusterFunctionDescriptor
+{
+  bool fMalloced;               // the function will free the data
+  bool ClusterFunc;             // Process incoming message only
+  //   in ET_CLUSTER thread.
+  int q_priority;               // lower is higher priority
+  ClusterFunctionPtr pfn;
+  ClusterFunctionPtr post_pfn;  // msg queue/send callout
+};
+
+#define CLUSTER_CMSG_QUEUES		2
+#define CMSG_MAX_PRI			0
+#define CMSG_LOW_PRI			(CLUSTER_CMSG_QUEUES-1)
+
+#ifndef DEFINE_CLUSTER_FUNCTIONS
+extern
+#endif
+ClusterFunctionDescriptor clusterFunction[]
+#ifdef DEFINE_CLUSTER_FUNCTIONS
+  = {
+  {false, true, CMSG_LOW_PRI, test_ClusterFunction, 0},
+  {false, true, CMSG_LOW_PRI, ping_ClusterFunction, 0},
+  {false, true, CMSG_LOW_PRI, ping_reply_ClusterFunction, 0},
+  {false, true, CMSG_LOW_PRI, machine_list_ClusterFunction, 0},
+  {false, true, CMSG_LOW_PRI, close_channel_ClusterFunction, 0},
+  {false, false, CMSG_LOW_PRI, get_hostinfo_ClusterFunction, 0},    // in HostDB.cc
+  {false, false, CMSG_LOW_PRI, put_hostinfo_ClusterFunction, 0},    // in HostDB.cc
+  {false, true, CMSG_LOW_PRI, cache_lookup_ClusterFunction, 0},    // in CacheCont.cc
+  {true, true, CMSG_LOW_PRI, cache_op_malloc_ClusterFunction, 0},
+  {false, true, CMSG_LOW_PRI, cache_op_ClusterFunction, 0},
+  {false, false, CMSG_LOW_PRI, cache_op_result_ClusterFunction, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},   // OBSOLETE
+  {false, false, CMSG_LOW_PRI, 0, 0},   // OBSOLETE
+  {false, false, CMSG_LOW_PRI, 0, 0},   // OBSOLETE
+  {false, true, CMSG_MAX_PRI, set_channel_data_ClusterFunction, post_setchan_send_ClusterFunction},
+  {false, true, CMSG_MAX_PRI, set_channel_pin_ClusterFunction, post_setchan_pin_ClusterFunction},
+  {false, true, CMSG_MAX_PRI, set_channel_priority_ClusterFunction, post_setchan_priority_ClusterFunction},
+   /********************************************
+    * RESERVED for future cluster internal use *
+    ********************************************/
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+  {false, false, CMSG_LOW_PRI, 0, 0},
+
+   /*********************************************
+    * RESERVED for Cluster RPC API use		*
+    *********************************************/
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0},
+  {true, false, CMSG_LOW_PRI, default_api_ClusterFunction, 0}
+  // ********** ADD NEW ENTRIES ABOVE THIS LINE ************
+}
+#endif
+
+;
+extern unsigned SIZE_clusterFunction;        // clusterFunction[] entries
+
+//////////////////////////////////////////////////////////////
+// Map from Cluster Function code to send queue priority
+//////////////////////////////////////////////////////////////
+inline int
+ClusterFuncToQpri(int cluster_func)
+{
+  if (cluster_func < 0) {
+    return CMSG_LOW_PRI;
+  } else {
+    return clusterFunction[cluster_func].q_priority;
+  }
+}
+
+//
+// This table had better match the above list
+//
+#define TEST_CLUSTER_FUNCTION                        0
+#define PING_CLUSTER_FUNCTION                        1
+#define PING_REPLY_CLUSTER_FUNCTION                  2
+#define MACHINE_LIST_CLUSTER_FUNCTION                3
+#define CLOSE_CHANNEL_CLUSTER_FUNCTION               4
+#define GET_HOSTINFO_CLUSTER_FUNCTION                5
+#define PUT_HOSTINFO_CLUSTER_FUNCTION                6
+#define CACHE_LOOKUP_CLUSTER_FUNCTION                7
+#define CACHE_OP_MALLOCED_CLUSTER_FUNCTION           8
+#define CACHE_OP_CLUSTER_FUNCTION                    9
+#define CACHE_OP_RESULT_CLUSTER_FUNCTION             10
+#define SET_CHANNEL_DATA_CLUSTER_FUNCTION      	     14
+#define SET_CHANNEL_PIN_CLUSTER_FUNCTION      	     15
+#define SET_CHANNEL_PRIORITY_CLUSTER_FUNCTION  	     16
+
+/********************************************
+ * RESERVED for future cluster internal use *
+ ********************************************/
+#define INTERNAL_RESERVED1_CLUSTER_FUNCTION  	     17
+#define INTERNAL_RESERVED2_CLUSTER_FUNCTION  	     18
+#define INTERNAL_RESERVED3_CLUSTER_FUNCTION  	     19
+#define INTERNAL_RESERVED4_CLUSTER_FUNCTION  	     20
+#define INTERNAL_RESERVED5_CLUSTER_FUNCTION  	     21
+#define INTERNAL_RESERVED6_CLUSTER_FUNCTION  	     22
+#define INTERNAL_RESERVED7_CLUSTER_FUNCTION  	     23
+#define INTERNAL_RESERVED8_CLUSTER_FUNCTION  	     24
+#define INTERNAL_RESERVED9_CLUSTER_FUNCTION  	     25
+#define INTERNAL_RESERVED10_CLUSTER_FUNCTION  	     26
+#define INTERNAL_RESERVED11_CLUSTER_FUNCTION  	     27
+#define INTERNAL_RESERVED12_CLUSTER_FUNCTION  	     28
+#define INTERNAL_RESERVED13_CLUSTER_FUNCTION  	     29
+#define INTERNAL_RESERVED14_CLUSTER_FUNCTION  	     30
+#define INTERNAL_RESERVED15_CLUSTER_FUNCTION  	     31
+#define INTERNAL_RESERVED16_CLUSTER_FUNCTION  	     32
+#define INTERNAL_RESERVED17_CLUSTER_FUNCTION  	     33
+#define INTERNAL_RESERVED18_CLUSTER_FUNCTION  	     34
+#define INTERNAL_RESERVED19_CLUSTER_FUNCTION  	     35
+#define INTERNAL_RESERVED20_CLUSTER_FUNCTION  	     36
+#define INTERNAL_RESERVED21_CLUSTER_FUNCTION  	     37
+#define INTERNAL_RESERVED22_CLUSTER_FUNCTION  	     38
+#define INTERNAL_RESERVED23_CLUSTER_FUNCTION  	     39
+#define INTERNAL_RESERVED24_CLUSTER_FUNCTION  	     40
+#define INTERNAL_RESERVED25_CLUSTER_FUNCTION  	     41
+#define INTERNAL_RESERVED26_CLUSTER_FUNCTION  	     42
+#define INTERNAL_RESERVED27_CLUSTER_FUNCTION  	     43
+#define INTERNAL_RESERVED28_CLUSTER_FUNCTION  	     44
+#define INTERNAL_RESERVED29_CLUSTER_FUNCTION  	     45
+#define INTERNAL_RESERVED30_CLUSTER_FUNCTION  	     46
+#define INTERNAL_RESERVED31_CLUSTER_FUNCTION  	     47
+#define INTERNAL_RESERVED32_CLUSTER_FUNCTION  	     48
+#define INTERNAL_RESERVED33_CLUSTER_FUNCTION  	     49
+#define INTERNAL_RESERVED34_CLUSTER_FUNCTION  	     50
+
+/****************************************************************************
+ * Cluster RPC API definitions.						    *
+ *									    *
+ ****************************************************************************
+ * Note: All of the following must be kept in sync with INKClusterRPCKey_t  *
+ * 	 definition in ts/ts.h and ts/experimental.h			    *
+ ****************************************************************************/
+
+/************************************************
+ * RESERVED for Wireless Group			*
+ ************************************************/
+#define API_F01_CLUSTER_FUNCTION  	     	     51
+#define API_F02_CLUSTER_FUNCTION  	     	     52
+#define API_F03_CLUSTER_FUNCTION  	     	     53
+#define API_F04_CLUSTER_FUNCTION  	     	     54
+#define API_F05_CLUSTER_FUNCTION  	     	     55
+#define API_F06_CLUSTER_FUNCTION  	     	     56
+#define API_F07_CLUSTER_FUNCTION  	     	     57
+#define API_F08_CLUSTER_FUNCTION  	     	     58
+#define API_F09_CLUSTER_FUNCTION  	     	     59
+#define API_F10_CLUSTER_FUNCTION  	     	     60
+
+/************************************************
+ * RESERVED for future use			*
+ ************************************************/
+#define API_F11_CLUSTER_FUNCTION  	     	     61
+#define API_F12_CLUSTER_FUNCTION  	     	     62
+#define API_F13_CLUSTER_FUNCTION  	     	     63
+#define API_F14_CLUSTER_FUNCTION  	     	     64
+#define API_F15_CLUSTER_FUNCTION  	     	     65
+#define API_F16_CLUSTER_FUNCTION  	     	     66
+#define API_F17_CLUSTER_FUNCTION  	     	     67
+#define API_F18_CLUSTER_FUNCTION  	     	     68
+#define API_F19_CLUSTER_FUNCTION  	     	     69
+#define API_F20_CLUSTER_FUNCTION  	     	     70
+
+#define API_F21_CLUSTER_FUNCTION  	     	     71
+#define API_F22_CLUSTER_FUNCTION  	     	     72
+#define API_F23_CLUSTER_FUNCTION  	     	     73
+#define API_F24_CLUSTER_FUNCTION  	     	     74
+#define API_F25_CLUSTER_FUNCTION  	     	     75
+#define API_F26_CLUSTER_FUNCTION  	     	     76
+#define API_F27_CLUSTER_FUNCTION  	     	     77
+#define API_F28_CLUSTER_FUNCTION  	     	     78
+#define API_F29_CLUSTER_FUNCTION  	     	     79
+#define API_F30_CLUSTER_FUNCTION  	     	     80
+
+#define API_STARECT_CLUSTER_FUNCTION		     API_F01_CLUSTER_FUNCTION
+#define API_END_CLUSTER_FUNCTION		     API_F30_CLUSTER_FUNCTION
+
+#define UNDEFINED_CLUSTER_FUNCTION                   0xFDEFFDEF
+
+//////////////////////////////////////////////
+// Initial cluster connect exchange message
+//////////////////////////////////////////////
+struct ClusterHelloMessage
+{
+  uint16_t _NativeByteOrder;
+  uint16_t _major;
+  uint16_t _minor;
+  uint16_t _min_major;
+  uint16_t _min_minor;
+  int16_t _id;
+#ifdef LOCAL_CLUSTER_TEST_MODE
+  int16_t _port;
+  char _pad[114];               // pad out to 128 bytes
+#else
+  char _pad[116];               // pad out to 128 bytes
+#endif
+
+    ClusterHelloMessage():_NativeByteOrder(1)
+  {
+    _major = CLUSTER_MAJOR_VERSION;
+    _minor = CLUSTER_MINOR_VERSION;
+    _min_major = MIN_CLUSTER_MAJOR_VERSION;
+    _min_minor = MIN_CLUSTER_MINOR_VERSION;
+    memset(_pad, '\0', sizeof(_pad));
+  }
+  int NativeByteOrder()
+  {
+    return (_NativeByteOrder == 1);
+  }
+  void AdjustByteOrder()
+  {
+    if (!NativeByteOrder()) {
+      ats_swap16(&_major);
+      ats_swap16(&_minor);
+      ats_swap16(&_min_major);
+      ats_swap16(&_min_minor);
+    }
+  }
+};
+
+///////////////////////////////////////////////////////////////////
+// Cluster message header definition.
+///////////////////////////////////////////////////////////////////
+struct ClusterMessageHeader
+{
+  uint16_t _InNativeByteOrder;    // always non-zero
+  uint16_t _MsgVersion;           // always non-zero
+
+  void _init(uint16_t msg_version)
+  {
+    _InNativeByteOrder = 1;
+    _MsgVersion = msg_version;
+  }
+  ClusterMessageHeader():_InNativeByteOrder(0), _MsgVersion(0)
+  {
+  }
+  ClusterMessageHeader(uint16_t msg_version) {
+    _init(msg_version);
+  }
+  int MsgInNativeByteOrder()
+  {
+    return (_InNativeByteOrder == 1);
+  }
+  int NeedByteSwap()
+  {
+    return (_InNativeByteOrder != 1);
+  }
+  int GetMsgVersion()
+  {
+    if (NeedByteSwap()) {
+      return ats_swap16(_MsgVersion);
+    } else {
+      return _MsgVersion;
+    }
+  }
+};
+
+///////////////////////////////////////////////////////////////////
+
+//
+// cluster_ping
+//
+typedef void (*PingReturnFunction) (ClusterHandler *, void *data, int len);
+
+struct PingMessage:public ClusterMessageHeader
+{
+  PingReturnFunction fn;        // Note: Pointer to a func
+  char data[1];                 // start of data
+
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    PING_MESSAGE_VERSION = MAX_VERSION
+  };
+
+    PingMessage(uint16_t vers = PING_MESSAGE_VERSION)
+:  ClusterMessageHeader(vers), fn(NULL) {
+    data[0] = '\0';
+  }
+  /////////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return PING_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    PingMessage *p = 0;
+    // Maybe use offsetof here instead. /leif
+    return (uintptr_t) (&p->data[0]);
+  }
+  void init(uint16_t vers = PING_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+  }                             // No action, message is always reflected back
+  /////////////////////////////////////////////////////////////////////////////
+};
+
+inline void
+cluster_ping(ClusterHandler *ch, PingReturnFunction fn, void *data, int len)
+{
+  PingMessage *msg = (PingMessage *)alloca(PingMessage::sizeof_fixedlen_msg() + len);
+  msg->init();
+  msg->fn = fn;
+  memcpy(msg->data, data, len);
+  clusterProcessor.invoke_remote(ch, PING_CLUSTER_FUNCTION, (void *) msg, (msg->sizeof_fixedlen_msg() + len));
+}
+
+// filled with 0's
+extern char channel_dummy_output[DEFAULT_MAX_BUFFER_SIZE];
+
+//
+// Private (for testing)
+//
+ClusterConfiguration *configuration_add_machine(ClusterConfiguration * c, ClusterMachine * m);
+ClusterConfiguration *configuration_remove_machine(ClusterConfiguration * c, ClusterMachine * m);
+extern bool machineClusterHash;
+extern bool boundClusterHash;
+extern bool randClusterHash;
+
+void build_cluster_hash_table(ClusterConfiguration *);
+
+inline void
+ClusterVC_enqueue_read(Queue<ClusterVConnectionBase, ClusterVConnectionBase::Link_read_link> &q, ClusterVConnectionBase * vc)
+{
+  ClusterVConnState * cs = &vc->read;
+  ink_assert(!cs->queue);
+  cs->queue = &q;
+  q.enqueue(vc);
+}
+
+inline void
+ClusterVC_enqueue_write(Queue<ClusterVConnectionBase, ClusterVConnectionBase::Link_write_link> &q, ClusterVConnectionBase * vc)
+{
+  ClusterVConnState * cs = &vc->write;
+  ink_assert(!cs->queue);
+  cs->queue = &q;
+  q.enqueue(vc);
+}
+
+inline void
+ClusterVC_remove_read(ClusterVConnectionBase * vc)
+{
+  ClusterVConnState * cs = &vc->read;
+  ink_assert(cs->queue);
+  ((Queue<ClusterVConnectionBase, ClusterVConnectionBase::Link_read_link> *)cs->queue)->remove(vc);
+  cs->queue = NULL;
+}
+
+inline void
+ClusterVC_remove_write(ClusterVConnectionBase * vc)
+{
+  ClusterVConnState * cs = &vc->write;
+  ink_assert(cs->queue);
+  ((Queue<ClusterVConnectionBase, ClusterVConnectionBase::Link_write_link> *)cs->queue)->remove(vc);
+  cs->queue = NULL;
+}
+
+
+#endif /* _Cluster_h */
diff --git a/iocore/cluster/P_ClusterCacheInternal.h b/iocore/cluster/P_ClusterCacheInternal.h
new file mode 100644
index 00000000..8b62d445
--- /dev/null
+++ b/iocore/cluster/P_ClusterCacheInternal.h
@@ -0,0 +1,828 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterCacheInternal.h
+****************************************************************************/
+
+#ifndef __P_CLUSTERCACHEINTERNAL_H__
+#define __P_CLUSTERCACHEINTERNAL_H__
+#include "P_ClusterCache.h"
+#include "I_OneWayTunnel.h"
+
+//
+// Compilation Options
+//
+#define CACHE_USE_OPEN_VIO              0       // EXPERIMENTAL: not fully tested
+#define DO_REPLICATION                  0       // EXPERIMENTAL: not fully tested
+
+//
+// Constants
+//
+#define META_DATA_FAST_ALLOC_LIMIT      1
+#define CACHE_CLUSTER_TIMEOUT           HRTIME_MSECONDS(5000)
+#define CACHE_RETRY_PERIOD              HRTIME_MSECONDS(10)
+#define REMOTE_CONNECT_HASH             (16 * 1024)
+
+//
+// Macros
+//
+#define FOLDHASH(_ip,_seq) (_seq % REMOTE_CONNECT_HASH)
+#define ALIGN_DOUBLE(_p)   ((((uintptr_t) (_p)) + 7) & ~7)
+#define ALLOCA_DOUBLE(_sz) ALIGN_DOUBLE(alloca((_sz) + 8))
+
+
+//
+// Testing
+//
+#define TEST(_x)
+//#define TEST(_x) _x
+
+//#define TTEST(_x)
+//fprintf(stderr, _x " at: %d\n",
+//      ((unsigned int)(ink_get_hrtime()/HRTIME_MSECOND)) % 1000)
+#define TTEST(_x)
+
+//#define TIMEOUT_TEST(_x) _x
+#define TIMEOUT_TEST(_x)
+
+extern int cache_migrate_on_demand;
+extern int ET_CLUSTER;
+//
+// Compile time options.
+//
+// Only one of PROBE_LOCAL_CACHE_FIRST or PROBE_LOCAL_CACHE_LAST
+// should be set.  These indicate that the local cache should be
+// probed at this point regardless of the dedicated location of the
+// object.  Note, if the owning machine goes down the local machine
+// will be probed anyway.
+//
+#define PROBE_LOCAL_CACHE_FIRST        DO_REPLICATION
+#define PROBE_LOCAL_CACHE_LAST         false
+
+//
+// This continuation handles all cache cluster traffic, on both
+// sides (state machine client and cache server)
+//
+struct CacheContinuation;
+typedef int (CacheContinuation::*CacheContHandler) (int, void *);
+struct CacheContinuation:public Continuation
+{
+  enum
+  {
+    MagicNo = 0x92183123
+  };
+  int magicno;
+  void *callback_data;
+  void *callback_data_2;
+  INK_MD5 url_md5;
+  Event *timeout;
+  Action action;
+  ClusterMachine *target_machine;
+  int probe_depth;
+  ClusterMachine *past_probes[CONFIGURATION_HISTORY_PROBE_DEPTH];
+  ink_hrtime start_time;
+  ClusterMachine *from;
+  ClusterHandler *ch;
+  VConnection *cache_vc;
+  bool cache_read;
+  int result;                   // return event code
+  int result_error;             // error code associated with event
+  ClusterVCToken token;
+  unsigned int seq_number;
+  uint16_t cfl_flags;             // Request flags; see CFL_XXX defines
+  CacheFragType frag_type;
+  int nbytes;
+  unsigned int target_ip;
+  int request_opcode;
+  bool request_purge;
+  bool local_lookup_only;
+  bool no_reply_message;
+  bool request_timeout;         // timeout occurred before
+  //   op complete
+  bool expect_cache_callback;
+
+  // remove_and_delete() specific data
+  bool use_deferred_callback;
+
+  // open_read/write data
+
+  time_t pin_in_cache;
+
+  // setMsgBufferLen(), allocMsgBuffer() and freeMsgBuffer() data
+
+    Ptr<IOBufferData> rw_buf_msg;
+  int rw_buf_msg_len;
+
+  // open data
+
+  ClusterVConnection *read_cluster_vc;
+  ClusterVConnection *write_cluster_vc;
+  int cluster_vc_channel;
+  ClusterVCToken open_local_token;
+
+  // Readahead on open read specific data
+
+  int caller_buf_freebytes;     // remote bufsize for
+  //  initial data
+  VIO *readahead_vio;
+  IOBufferReader *readahead_reader;
+    Ptr<IOBufferBlock> readahead_data;
+  bool have_all_data;           // all object data in response
+
+  CacheHTTPInfo cache_vc_info;
+  OneWayTunnel *tunnel;
+    Ptr<ProxyMutex> tunnel_mutex;
+  CacheContinuation *tunnel_cont;
+  bool tunnel_closed;
+  Action *cache_action;
+  Event *lookup_open_write_vc_event;
+
+  // Incoming data generated from unmarshaling request/response ops
+
+  Arena ic_arena;
+  CacheHTTPHdr ic_request;
+  CacheHTTPHdr ic_response;
+  CacheLookupHttpConfig *ic_params;
+  CacheHTTPInfo ic_old_info;
+  CacheHTTPInfo ic_new_info;
+    Ptr<IOBufferData> ic_hostname;
+  int ic_hostname_len;
+
+  // debugging
+  int cache_op_ClusterFunction;
+
+  int lookupEvent(int event, void *d);
+  int probeLookupEvent(int event, void *d);
+  int remoteOpEvent(int event, Event * e);
+  int replyLookupEvent(int event, void *d);
+  int replyOpEvent(int event, VConnection * vc);
+  int handleReplyEvent(int event, Event * e);
+  int callbackEvent(int event, Event * e);
+  int setupVCdataRead(int event, VConnection * vc);
+  int VCdataRead(int event, VIO * target_vio);
+  int setupReadWriteVC(int, VConnection *);
+  ClusterVConnection *lookupOpenWriteVC();
+  int lookupOpenWriteVCEvent(int, Event *);
+  int localVCsetupEvent(int event, ClusterVConnection * vc);
+  void insert_cache_callback_user(ClusterVConnection *, int, void *);
+  int insertCallbackEvent(int, Event *);
+  void callback_user(int result, void *d);
+  void defer_callback_result(int result, void *d);
+  int callbackResultEvent(int event, Event * e);
+  void setupReadBufTunnel(VConnection *, VConnection *);
+  int tunnelClosedEvent(int event, void *);
+  int remove_and_delete(int, Event *);
+
+
+  inline void setMsgBufferLen(int l, IOBufferData * b = 0) {
+    ink_assert(rw_buf_msg == 0);
+    ink_assert(rw_buf_msg_len == 0);
+
+    rw_buf_msg = b;
+    rw_buf_msg_len = l;
+  }
+
+  inline int getMsgBufferLen()
+  {
+    return rw_buf_msg_len;
+  }
+
+  inline void allocMsgBuffer()
+  {
+    ink_assert(rw_buf_msg == 0);
+    ink_assert(rw_buf_msg_len);
+    if (rw_buf_msg_len <= DEFAULT_MAX_BUFFER_SIZE) {
+      rw_buf_msg = new_IOBufferData(buffer_size_to_index(rw_buf_msg_len, MAX_BUFFER_SIZE_INDEX));
+    } else {
+      rw_buf_msg = new_xmalloc_IOBufferData(ats_malloc(rw_buf_msg_len), rw_buf_msg_len);
+    }
+  }
+
+  inline char *getMsgBuffer()
+  {
+    ink_assert(rw_buf_msg);
+    return rw_buf_msg->data();
+  }
+
+  inline IOBufferData *getMsgBufferIOBData()
+  {
+    return rw_buf_msg;
+  }
+
+  inline void freeMsgBuffer()
+  {
+    if (rw_buf_msg) {
+      rw_buf_msg = 0;
+      rw_buf_msg_len = 0;
+    }
+  }
+
+  inline void free()
+  {
+    token.clear();
+
+    if (cache_vc_info.valid()) {
+      cache_vc_info.destroy();
+    }
+    // Deallocate unmarshaled data
+    if (ic_params) {
+      delete ic_params;
+      ic_params = 0;
+    }
+    if (ic_request.valid()) {
+      ic_request.clear();
+    }
+    if (ic_response.valid()) {
+      ic_response.clear();
+    }
+    if (ic_old_info.valid()) {
+      ic_old_info.destroy();
+    }
+    if (ic_new_info.valid()) {
+      ic_new_info.destroy();
+    }
+    ic_arena.reset();
+    freeMsgBuffer();
+
+    tunnel_mutex = 0;
+    readahead_data = 0;
+    ic_hostname = 0;
+  }
+
+CacheContinuation():
+  Continuation(NULL),
+    magicno(MagicNo),
+    callback_data(0),
+    callback_data_2(0),
+    timeout(0),
+    target_machine(0),
+    probe_depth(0),
+    start_time(0),
+    cache_read(false),
+    result(0),
+    result_error(0),
+    seq_number(0),
+    cfl_flags(0),
+    frag_type(CACHE_FRAG_TYPE_NONE),
+    nbytes(0),
+    target_ip(0),
+    request_opcode(0),
+    request_purge(false),
+    local_lookup_only(0),
+    no_reply_message(0),
+    request_timeout(0),
+    expect_cache_callback(true),
+    use_deferred_callback(0),
+    pin_in_cache(0),
+    rw_buf_msg_len(0),
+    read_cluster_vc(0),
+    write_cluster_vc(0),
+    cluster_vc_channel(0),
+    caller_buf_freebytes(0),
+    readahead_vio(0),
+    readahead_reader(0),
+    have_all_data(false),
+    cache_vc_info(),
+    tunnel(0),
+    tunnel_cont(0),
+    tunnel_closed(0),
+    lookup_open_write_vc_event(0),
+    ic_arena(),
+    ic_request(),
+    ic_response(), ic_params(0), ic_old_info(), ic_new_info(), ic_hostname_len(0), cache_op_ClusterFunction(0) {
+    token.clear();
+    SET_HANDLER((CacheContHandler) & CacheContinuation::remoteOpEvent);
+  }
+
+  inline static bool is_ClusterThread(EThread * et)
+  {
+    int etype = ET_CLUSTER;
+    int i;
+    for (i = 0; i < eventProcessor.n_threads_for_type[etype]; ++i) {
+      if (et == eventProcessor.eventthread[etype][i]) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  // Static class member functions
+  static int init();
+  static CacheContinuation *cacheContAllocator_alloc();
+  static void cacheContAllocator_free(CacheContinuation *);
+  inkcoreapi static Action *callback_failure(Action *, int, int, CacheContinuation * this_cc = 0);
+  static Action *do_remote_lookup(Continuation *, CacheKey *, CacheContinuation *, CacheFragType, char *, int);
+  inkcoreapi static Action *do_op(Continuation *, ClusterMachine *, void *, int, char *, int,
+                                  int nbytes = -1, MIOBuffer * b = 0);
+  static int setup_local_vc(char *data, int data_len, CacheContinuation * cc, ClusterMachine * mp, Action **);
+  static void disposeOfDataBuffer(void *buf);
+  static int handleDisposeEvent(int event, CacheContinuation * cc);
+  static int32_t getObjectSize(VConnection *, int, CacheHTTPInfo *);
+};
+
+/////////////////////////////////////////
+// Cache OP specific args for do_op()  //
+/////////////////////////////////////////
+
+// Bit definitions for cfl_flags.
+// Note: Limited to 16 bits
+#define CFL_OVERWRITE_ON_WRITE 		(1 << 1)
+#define CFL_REMOVE_USER_AGENTS 		(1 << 2)
+#define CFL_REMOVE_LINK 		(1 << 3)
+#define CFL_LOPENWRITE_HAVE_OLDINFO	(1 << 4)
+#define CFL_ALLOW_MULTIPLE_WRITES       (1 << 5)
+#define CFL_MAX 			(1 << 15)
+
+struct CacheOpArgs_General
+{
+  INK_MD5 *url_md5;
+  time_t pin_in_cache;          // open_write() specific arg
+  CacheFragType frag_type;
+  uint16_t cfl_flags;
+
+    CacheOpArgs_General():url_md5(NULL), pin_in_cache(0), frag_type(CACHE_FRAG_TYPE_NONE), cfl_flags(0)
+  {
+  }
+};
+
+struct CacheOpArgs_Link
+{
+  INK_MD5 *from;
+  INK_MD5 *to;
+  uint16_t cfl_flags;             // see CFL_XXX defines
+  CacheFragType frag_type;
+
+    CacheOpArgs_Link():from(NULL), to(NULL), cfl_flags(0), frag_type(CACHE_FRAG_TYPE_NONE)
+  {
+  }
+};
+
+struct CacheOpArgs_Deref
+{
+  INK_MD5 *md5;
+  uint16_t cfl_flags;             // see CFL_XXX defines
+  CacheFragType frag_type;
+
+    CacheOpArgs_Deref():md5(NULL), cfl_flags(0), frag_type(CACHE_FRAG_TYPE_NONE)
+  {
+  }
+};
+
+///////////////////////////////////
+// Over the wire message formats //
+///////////////////////////////////
+struct CacheLookupMsg:public ClusterMessageHeader
+{
+  INK_MD5 url_md5;
+  uint32_t seq_number;
+  uint32_t frag_type;
+  Alias32 moi;
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    CACHE_LOOKUP_MESSAGE_VERSION = MAX_VERSION
+  };
+  CacheLookupMsg(uint16_t vers = CACHE_LOOKUP_MESSAGE_VERSION):
+  ClusterMessageHeader(vers), seq_number(0), frag_type(0) {
+    moi.u32 = 0;
+  }
+
+  //////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return CACHE_LOOKUP_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) ALIGN_DOUBLE(offsetof(CacheLookupMsg, moi));
+  }
+  void init(uint16_t vers = CACHE_LOOKUP_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ink_release_assert(!"No byte swap for INK_MD5");
+      ats_swap32(&seq_number);
+      ats_swap32(&frag_type);
+    }
+  }
+  //////////////////////////////////////////////////////////////////////////
+};
+
+struct CacheOpMsg_long:public ClusterMessageHeader
+{
+  uint8_t opcode;
+  uint8_t frag_type;
+  uint16_t cfl_flags;             // see CFL_XXX defines
+  INK_MD5 url_md5;
+  uint32_t seq_number;
+  uint32_t nbytes;
+  uint32_t data;                  // used by open_write()
+  int32_t channel;                // used by open interfaces
+  ClusterVCToken token;
+  int32_t buffer_size;            // used by open read interface
+  Alias32 moi;
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    CACHE_OP_LONG_MESSAGE_VERSION = MAX_VERSION
+  };
+  CacheOpMsg_long(uint16_t vers = CACHE_OP_LONG_MESSAGE_VERSION):
+  ClusterMessageHeader(vers),
+    opcode(0), frag_type(0), cfl_flags(0), seq_number(0), nbytes(0), data(0), channel(0), buffer_size(0) {
+    moi.u32 = 0;
+  }
+
+  //////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return CACHE_OP_LONG_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) ALIGN_DOUBLE(offsetof(CacheOpMsg_long, moi));
+  }
+  void init(uint16_t vers = CACHE_OP_LONG_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ink_release_assert(!"No byte swap for INK_MD5");
+      ats_swap16(&cfl_flags);
+      ats_swap32(&seq_number);
+      ats_swap32(&nbytes);
+      ats_swap32(&data);
+      ats_swap32((uint32_t *) & channel);
+      token.SwapBytes();
+      ats_swap32((uint32_t *) & buffer_size);
+      ats_swap32((uint32_t *) & frag_type);
+    }
+  }
+  //////////////////////////////////////////////////////////////////////////
+};
+
+struct CacheOpMsg_short:public ClusterMessageHeader
+{
+  uint8_t opcode;
+  uint8_t frag_type;              // currently used by open_write() (low level)
+  uint16_t cfl_flags;             // see CFL_XXX defines
+  INK_MD5 md5;
+  uint32_t seq_number;
+  uint32_t nbytes;
+  uint32_t data;                  // currently used by open_write() (low level)
+  int32_t channel;                // used by open interfaces
+  ClusterVCToken token;         // used by open interfaces
+  int32_t buffer_size;            // used by open read interface
+
+  // Variable portion of message
+  Alias32 moi;
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    CACHE_OP_SHORT_MESSAGE_VERSION = MAX_VERSION
+  };
+  CacheOpMsg_short(uint16_t vers = CACHE_OP_SHORT_MESSAGE_VERSION):
+  ClusterMessageHeader(vers),
+    opcode(0), frag_type(0), cfl_flags(0), seq_number(0), nbytes(0), data(0), channel(0), buffer_size(0) {
+    moi.u32 = 0;
+  }
+
+  //////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return CACHE_OP_SHORT_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) ALIGN_DOUBLE(offsetof(CacheOpMsg_short, moi));
+  }
+  void init(uint16_t vers = CACHE_OP_SHORT_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ink_release_assert(!"No byte swap for INK_MD5");
+      ats_swap16(&cfl_flags);
+      ats_swap32(&seq_number);
+      ats_swap32(&nbytes);
+      ats_swap32(&data);
+      if (opcode == CACHE_OPEN_READ) {
+        ats_swap32((uint32_t *) & buffer_size);
+        ats_swap32((uint32_t *) & channel);
+        token.SwapBytes();
+      }
+    }
+  }
+  //////////////////////////////////////////////////////////////////////////
+};
+
+struct CacheOpMsg_short_2:public ClusterMessageHeader
+{
+  uint8_t opcode;
+  uint8_t frag_type;
+  uint16_t cfl_flags;             // see CFL_XXX defines
+  INK_MD5 md5_1;
+  INK_MD5 md5_2;
+  uint32_t seq_number;
+  Alias32 moi;
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    CACHE_OP_SHORT_2_MESSAGE_VERSION = MAX_VERSION
+  };
+  CacheOpMsg_short_2(uint16_t vers = CACHE_OP_SHORT_2_MESSAGE_VERSION)
+    :  ClusterMessageHeader(vers), opcode(0), frag_type(0), cfl_flags(0), seq_number(0) {
+    moi.u32 = 0;
+  }
+  //////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return CACHE_OP_SHORT_2_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) ALIGN_DOUBLE(offsetof(CacheOpMsg_short_2, moi));
+  }
+  void init(uint16_t vers = CACHE_OP_SHORT_2_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ink_release_assert(!"No byte swap for MD5_1");
+      ink_release_assert(!"No byte swap for MD5_2");
+      ats_swap16(&cfl_flags);
+      ats_swap32(&seq_number);
+    }
+  }
+  //////////////////////////////////////////////////////////////////////////
+};
+
+struct CacheOpReplyMsg:public ClusterMessageHeader
+{
+  uint32_t seq_number;
+  int32_t result;
+  ClusterVCToken token;
+  bool is_ram_cache_hit;          // Entire object was from ram cache
+  Alias32 moi;                 // Used by CACHE_OPEN_READ & CACHE_LINK reply
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    CACHE_OP_REPLY_MESSAGE_VERSION = MAX_VERSION
+  };
+  CacheOpReplyMsg(uint16_t vers = CACHE_OP_REPLY_MESSAGE_VERSION)
+    : ClusterMessageHeader(vers), seq_number(0), result(0), is_ram_cache_hit(false) {
+    moi.u32 = 0;
+  }
+
+  //////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return CACHE_OP_REPLY_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) ALIGN_DOUBLE(offsetof(CacheOpReplyMsg, moi));
+  }
+  void init(uint16_t vers = CACHE_OP_REPLY_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ats_swap32(&seq_number);
+      ats_swap32((uint32_t *) & result);
+      token.SwapBytes();
+    }
+  }
+  //////////////////////////////////////////////////////////////////////////
+};
+
+inline int
+maxval(int a, int b)
+{
+  return ((a > b) ? a : b);
+}
+
+inline int
+op_to_sizeof_fixedlen_msg(int op)
+{
+  switch (op) {
+  case CACHE_LOOKUP_OP:
+    {
+      return CacheLookupMsg::sizeof_fixedlen_msg();
+    }
+  case CACHE_OPEN_WRITE_BUFFER:
+  case CACHE_OPEN_WRITE_BUFFER_LONG:
+    {
+      ink_release_assert(!"op_to_sizeof_fixedlen_msg() op not supported");
+      return 0;
+    }
+  case CACHE_OPEN_WRITE:
+  case CACHE_OPEN_READ:
+  case CACHE_OPEN_READ_BUFFER:
+    {
+      return CacheOpMsg_short::sizeof_fixedlen_msg();
+    }
+  case CACHE_OPEN_READ_LONG:
+  case CACHE_OPEN_READ_BUFFER_LONG:
+  case CACHE_OPEN_WRITE_LONG:
+    {
+      return CacheOpMsg_long::sizeof_fixedlen_msg();
+    }
+  case CACHE_UPDATE:
+  case CACHE_REMOVE:
+  case CACHE_DEREF:
+    {
+      return CacheOpMsg_short::sizeof_fixedlen_msg();
+    }
+  case CACHE_LINK:
+    {
+      return CacheOpMsg_short_2::sizeof_fixedlen_msg();
+    }
+  default:
+    {
+      ink_release_assert(!"op_to_sizeof_fixedlen_msg() unknown op");
+      return 0;
+    }
+  }                             // End of switch
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+static inline bool
+event_is_lookup(int event)
+{
+  switch (event) {
+  default:
+    return false;
+  case CACHE_EVENT_LOOKUP:
+  case CACHE_EVENT_LOOKUP_FAILED:
+    return true;
+  }
+}
+
+static inline bool
+event_is_open(int event)
+{
+  switch (event) {
+  default:
+    return false;
+  case CACHE_EVENT_OPEN_READ:
+  case CACHE_EVENT_OPEN_WRITE:
+    return true;
+  }
+}
+
+static inline bool
+op_is_read(int opcode)
+{
+  switch (opcode) {
+  case CACHE_OPEN_READ:
+  case CACHE_OPEN_READ_LONG:
+  case CACHE_OPEN_READ_BUFFER:
+  case CACHE_OPEN_READ_BUFFER_LONG:
+    return true;
+  default:
+    return false;
+  }
+}
+
+static inline bool
+op_is_shortform(int opcode)
+{
+  switch (opcode) {
+  case CACHE_OPEN_READ:
+  case CACHE_OPEN_READ_BUFFER:
+  case CACHE_OPEN_WRITE:
+  case CACHE_OPEN_WRITE_BUFFER:
+    return true;
+  default:
+    return false;
+  }
+}
+
+static inline int
+op_failure(int opcode)
+{
+  switch (opcode) {
+  case CACHE_OPEN_WRITE:
+  case CACHE_OPEN_WRITE_LONG:
+  case CACHE_OPEN_WRITE_BUFFER:
+  case CACHE_OPEN_WRITE_BUFFER_LONG:
+    return CACHE_EVENT_OPEN_WRITE_FAILED;
+
+  case CACHE_OPEN_READ:
+  case CACHE_OPEN_READ_LONG:
+  case CACHE_OPEN_READ_BUFFER:
+  case CACHE_OPEN_READ_BUFFER_LONG:
+    return CACHE_EVENT_OPEN_READ_FAILED;
+
+  case CACHE_UPDATE:
+    return CACHE_EVENT_UPDATE_FAILED;
+  case CACHE_REMOVE:
+    return CACHE_EVENT_REMOVE_FAILED;
+  case CACHE_LINK:
+    return CACHE_EVENT_LINK_FAILED;
+  case CACHE_DEREF:
+    return CACHE_EVENT_DEREF_FAILED;
+  }
+  return -1;
+}
+
+static inline int
+op_needs_marshalled_coi(int opcode)
+{
+  switch (opcode) {
+  case CACHE_OPEN_WRITE:
+  case CACHE_OPEN_WRITE_BUFFER:
+  case CACHE_OPEN_READ:
+  case CACHE_OPEN_READ_BUFFER:
+  case CACHE_REMOVE:
+  case CACHE_LINK:
+  case CACHE_DEREF:
+    return 0;
+
+  case CACHE_OPEN_WRITE_LONG:
+  case CACHE_OPEN_WRITE_BUFFER_LONG:
+  case CACHE_OPEN_READ_LONG:
+  case CACHE_OPEN_READ_BUFFER_LONG:
+  case CACHE_UPDATE:
+    return 0;
+
+  default:
+    return 0;
+  }
+}
+
+static inline int
+event_reply_may_have_moi(int event)
+{
+  switch (event) {
+  case CACHE_EVENT_OPEN_READ:
+  case CACHE_EVENT_LINK:
+  case CACHE_EVENT_LINK_FAILED:
+  case CACHE_EVENT_OPEN_READ_FAILED:
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+  case CACHE_EVENT_REMOVE_FAILED:
+  case CACHE_EVENT_UPDATE_FAILED:
+  case CACHE_EVENT_DEREF_FAILED:
+    return true;
+  default:
+    return false;
+  }
+}
+
+static inline int
+event_is_failure(int event)
+{
+  switch (event) {
+  case CACHE_EVENT_LOOKUP_FAILED:
+  case CACHE_EVENT_OPEN_READ_FAILED:
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+  case CACHE_EVENT_UPDATE_FAILED:
+  case CACHE_EVENT_REMOVE_FAILED:
+  case CACHE_EVENT_LINK_FAILED:
+  case CACHE_EVENT_DEREF_FAILED:
+    return true;
+  default:
+    return false;
+  }
+}
+
+#endif // __CLUSTERCACHEINTERNAL_H__
diff --git a/iocore/cluster/P_ClusterHandler.h b/iocore/cluster/P_ClusterHandler.h
new file mode 100644
index 00000000..4a627556
--- /dev/null
+++ b/iocore/cluster/P_ClusterHandler.h
@@ -0,0 +1,675 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterHandler.h
+****************************************************************************/
+
+#ifndef _P_ClusterHandler_h
+#define _P_ClusterHandler_h
+
+
+class ClusterLoadMonitor;
+
+struct ClusterCalloutContinuation;
+typedef int (ClusterCalloutContinuation::*ClstCoutContHandler) (int, void *);
+
+struct ClusterCalloutContinuation:public Continuation
+{
+  struct ClusterHandler *_ch;
+
+  int CalloutHandler(int event, Event * e);
+    ClusterCalloutContinuation(struct ClusterHandler *ch);
+   ~ClusterCalloutContinuation();
+};
+
+struct ClusterControl: public Continuation
+{
+  int len; // TODO: Should this be 64-bit ?
+  char size_index;
+  int64_t *real_data;
+  char *data;
+  void (*free_proc) (void *);
+  void *free_proc_arg;
+    Ptr<IOBufferBlock> iob_block;
+
+  IOBufferBlock *get_block()
+  {
+    return iob_block;
+  }
+  bool fast_data()
+  {
+    return (len <= MAX_FAST_CONTROL_MESSAGE);
+  }
+  bool valid_alloc_data()
+  {
+    return iob_block && real_data && data;
+  }
+
+  enum
+  {
+    // DATA_HDR = size_index (1 byte) + magicno (1 byte) + sizeof(this)
+
+    DATA_HDR = (sizeof(int64_t) * 2)      // must be multiple of sizeof(int64_t)
+  };
+
+  ClusterControl();
+  void real_alloc_data(int, bool);
+  void free_data();
+  virtual void freeall() = 0;
+};
+
+struct OutgoingControl: public ClusterControl
+{
+  ClusterHandler *ch;
+  ink_hrtime submit_time;
+
+  static OutgoingControl *alloc();
+
+    OutgoingControl();
+  void alloc_data(bool align_int32_on_non_int64_boundary = true) {
+    real_alloc_data(1, align_int32_on_non_int64_boundary);      /* read access */
+  }
+
+  void set_data(char *adata, int alen)
+  {
+    data = adata;
+    len = alen;
+    free_proc = 0;
+    free_proc_arg = 0;
+    real_data = 0;
+
+    // Create IOBufferBlock wrapper around passed data.
+
+    iob_block = new_IOBufferBlock();
+    iob_block->set_internal(adata, alen, BUFFER_SIZE_FOR_XMALLOC(alen));
+    iob_block->_buf_end = iob_block->end();
+  }
+
+  void set_data(IOBufferBlock * buf, void (*free_data_proc) (void *), void *free_data_arg)
+  {
+    data = buf->data->data();
+    len = bytes_IOBufferBlockList(buf, 1);      // read avail bytes
+    free_proc = free_data_proc;
+    free_proc_arg = free_data_arg;
+    real_data = 0;
+    iob_block = buf;
+  }
+  int startEvent(int event, Event * e);
+  virtual void freeall();
+};
+
+//
+// incoming control messsage are received by this machine
+//
+struct IncomingControl: public ClusterControl
+{
+  ink_hrtime recognized_time;
+
+  static IncomingControl *alloc();
+
+    IncomingControl();
+  void alloc_data(bool align_int32_on_non_int64_boundary = true) {
+    real_alloc_data(0, align_int32_on_non_int64_boundary);      /* write access */
+  }
+  virtual void freeall();
+};
+
+//
+// Interface structure for internal_invoke_remote()
+//
+struct invoke_remote_data_args
+{
+  int32_t magicno;
+  OutgoingControl *msg_oc;
+  OutgoingControl *data_oc;
+  int dest_channel;
+  ClusterVCToken token;
+
+  enum
+  {
+    MagicNo = 0x04141998
+  };
+    invoke_remote_data_args():magicno(MagicNo), msg_oc(NULL), data_oc(NULL), dest_channel(0)
+  {
+  }
+};
+
+//
+// Descriptor of a chunk of a message (see Memo.ClusterIODesign)
+// This has been tested for aligment on the Sparc using TestDescriptor.cc
+//
+
+// type
+#define CLUSTER_SEND_FREE   0
+#define CLUSTER_SEND_DATA   1
+#define CLUSTER_SEQUENCE_NUMBER(_x) (((unsigned int)_x)&0xFFFF)
+
+struct Descriptor
+{                               // Note: Over the Wire structure
+  uint32_t type:1;
+  uint32_t channel:15;
+  uint16_t sequence_number;       // lower 16 bits of the ClusterVCToken.seq
+  uint32_t length;
+
+  inline void SwapBytes()
+  {
+    ats_swap16((uint16_t *) this);    // Hack
+    ats_swap16((uint16_t *) & sequence_number);
+    ats_swap32((uint32_t *) & length);
+  }
+};
+
+struct ClusterMsgHeader
+{                               // Note: Over the Wire structure
+  uint16_t count;
+  uint16_t descriptor_cksum;
+  uint16_t control_bytes_cksum;
+  uint16_t unused;
+  uint32_t control_bytes;
+  uint32_t count_check;
+
+  void clear()
+  {
+    count = 0;
+    descriptor_cksum = 0;
+    control_bytes_cksum = 0;
+    unused = 0;
+    control_bytes = 0;
+    count_check = 0;
+  }
+  ClusterMsgHeader():count(0), descriptor_cksum(0), control_bytes_cksum(0), unused(0), control_bytes(0), count_check(0)
+  {
+  }
+  inline void SwapBytes()
+  {
+    ats_swap16((uint16_t *) & count);
+    ats_swap16((uint16_t *) & descriptor_cksum);
+    ats_swap16((uint16_t *) & control_bytes_cksum);
+    ats_swap16((uint16_t *) & unused);
+    ats_swap32((uint32_t *) & control_bytes);
+    ats_swap32((uint32_t *) & count_check);
+  }
+};
+
+struct ClusterMsg
+{
+  Descriptor *descriptor;
+    Ptr<IOBufferBlock> iob_descriptor_block;
+  int count;
+  int control_bytes;
+  int descriptor_cksum;
+  int control_bytes_cksum;
+  int unused;
+  int state;                    // Only used by read to denote
+  //   read phase (count, descriptor, data)
+    Queue<OutgoingControl> outgoing_control;
+    Queue<OutgoingControl> outgoing_small_control;
+    Queue<OutgoingControl> outgoing_callout; // compound msg callbacks
+
+  // read processing usage.
+  int control_data_offset;
+  int did_small_control_set_data;
+  int did_large_control_set_data;
+  int did_small_control_msgs;
+  int did_large_control_msgs;
+  int did_freespace_msgs;
+
+  ClusterMsgHeader *hdr()
+  {
+    return (ClusterMsgHeader *) (((char *) descriptor)
+                                 - sizeof(ClusterMsgHeader));
+  }
+
+  IOBufferBlock *get_block()
+  {
+    return iob_descriptor_block;
+  }
+
+  IOBufferBlock *get_block_header()
+  {
+    int start_offset;
+
+    start_offset = (char *) hdr() - iob_descriptor_block->buf();
+    iob_descriptor_block->reset();
+    iob_descriptor_block->next = 0;
+    iob_descriptor_block->fill(start_offset);
+    iob_descriptor_block->consume(start_offset);
+    return iob_descriptor_block;
+  }
+
+  IOBufferBlock *get_block_descriptor()
+  {
+    int start_offset;
+
+    start_offset = ((char *) hdr() + sizeof(ClusterMsgHeader))
+      - iob_descriptor_block->buf();
+    iob_descriptor_block->reset();
+    iob_descriptor_block->next = 0;
+    iob_descriptor_block->fill(start_offset);
+    iob_descriptor_block->consume(start_offset);
+    return iob_descriptor_block;
+  }
+
+  void clear()
+  {
+    hdr()->clear();
+    count = 0;
+    control_bytes = 0;
+    descriptor_cksum = 0;
+    control_bytes_cksum = 0;
+    unused = 0;
+    state = 0;
+    outgoing_control.clear();
+    outgoing_small_control.clear();
+    control_data_offset = 0;
+    did_small_control_set_data = 0;
+    did_large_control_set_data = 0;
+    did_small_control_msgs = 0;
+    did_large_control_msgs = 0;
+    did_freespace_msgs = 0;
+  }
+  uint16_t calc_control_bytes_cksum()
+  {
+    uint16_t cksum = 0;
+    char *p = (char *) &descriptor[count];
+    char *endp = p + control_bytes;
+    while (p < endp) {
+      cksum += *p;
+      ++p;
+    }
+    return cksum;
+  }
+  uint16_t calc_descriptor_cksum()
+  {
+    uint16_t cksum = 0;
+    char *p = (char *) &descriptor[0];
+    char *endp = (char *) &descriptor[count];
+    while (p < endp) {
+      cksum += *p;
+      ++p;
+    }
+    return cksum;
+  }
+ClusterMsg():descriptor(NULL), iob_descriptor_block(NULL), count(0),
+    control_bytes(0),
+    descriptor_cksum(0), control_bytes_cksum(0),
+    unused(0), state(0),
+    control_data_offset(0),
+    did_small_control_set_data(0),
+    did_large_control_set_data(0), did_small_control_msgs(0), did_large_control_msgs(0), did_freespace_msgs(0) {
+  }
+
+};
+
+//
+// State for a particular (read/write) direction of a cluster link
+//
+struct ClusterHandler;
+struct ClusterState: public Continuation
+{
+  ClusterHandler *ch;
+  bool read_channel;
+  bool do_iodone_event;         // schedule_imm() on i/o complete
+  int n_descriptors;
+  ClusterMsg msg;
+  unsigned int sequence_number;
+  int to_do;                    // # of bytes to transact
+  int did;                      // # of bytes transacted
+  int n_iov;                    // defined iov(s) in this operation
+  int io_complete;              // current i/o complete
+  int io_complete_event;        // current i/o complete event
+  VIO *v;                       // VIO associated with current op
+  int bytes_xfered;             // bytes xfered at last callback
+  int last_ndone;               // last do_io ndone
+  int total_bytes_xfered;
+  IOVec *iov;                   // io vector for readv, writev
+  Ptr<IOBufferData> iob_iov;
+
+  // Write byte bank structures
+  char *byte_bank;              // bytes buffered for transit
+  int n_byte_bank;              // number of bytes buffered for transit
+  int byte_bank_size;           // allocated size of byte bank
+
+  int missed;
+  bool missed_msg;
+  ink_hrtime last_time;
+  ink_hrtime start_time;
+
+  Ptr<IOBufferBlock> block[MAX_TCOUNT];
+  class MIOBuffer *mbuf;
+  int state;                    // See enum defs below
+
+
+  enum
+  {
+    READ_START = 1,
+    READ_HEADER,
+    READ_AWAIT_HEADER,
+    READ_SETUP_DESCRIPTOR,
+    READ_DESCRIPTOR,
+    READ_AWAIT_DESCRIPTOR,
+    READ_SETUP_DATA,
+    READ_DATA,
+    READ_AWAIT_DATA,
+    READ_POST_COMPLETE,
+    READ_COMPLETE
+  } read_state_t;
+
+  enum
+  {
+    WRITE_START = 1,
+    WRITE_SETUP,
+    WRITE_INITIATE,
+    WRITE_AWAIT_COMPLETION,
+    WRITE_POST_COMPLETE,
+    WRITE_COMPLETE
+  } write_state_t;
+
+  ClusterState(ClusterHandler *, bool);
+  ~ClusterState();
+  IOBufferData *get_data();
+  void build_do_io_vector();
+  int doIO();
+  int doIO_read_event(int, void *);
+  int doIO_write_event(int, void *);
+  void IOComplete();
+};
+
+//
+// ClusterHandlerBase superclass for processors with
+// bi-directional VConnections.
+//
+struct ClusterHandlerBase: public Continuation
+{
+  //
+  // Private
+  //
+  Queue<ClusterVConnectionBase, ClusterVConnection::Link_read_link> *read_vcs;
+  Queue<ClusterVConnectionBase, ClusterVConnection::Link_write_link> *write_vcs;
+  int cur_vcs;
+  int min_priority;
+  Event *trigger_event;
+
+  ClusterHandlerBase():Continuation(NULL), read_vcs(NULL), write_vcs(NULL), cur_vcs(0), min_priority(1)
+  {
+  }
+};
+
+struct ClusterHandler:public ClusterHandlerBase
+{
+#ifdef MSG_TRACE
+  FILE *t_fd;
+#endif
+  NetVConnection *net_vc;
+  EThread *thread;
+  unsigned int ip;
+  int port;
+  char *hostname;
+  ClusterMachine *machine;
+  int ifd;
+  int id;
+  bool dead;
+  bool downing;
+
+  int32_t active;                 // handler currently running
+  bool on_stolen_thread;
+
+  struct ChannelData
+  {
+    int channel_number;
+    LINK(ChannelData, link);
+  };
+
+  int n_channels;
+  ClusterVConnection **channels;
+  struct ChannelData **channel_data;
+  Queue<ChannelData> free_local_channels;
+
+  bool connector;
+  int cluster_connect_state;    // see clcon_state_t enum
+  ClusterHelloMessage clusteringVersion;
+  ClusterHelloMessage nodeClusteringVersion;
+  bool needByteSwap;
+  int configLookupFails;
+
+#define CONFIG_LOOKUP_RETRIES	10
+
+  enum
+  {
+    CLCON_INITIAL = 1,
+    CLCON_SEND_MSG,
+    CLCON_SEND_MSG_COMPLETE,
+    CLCON_READ_MSG,
+    CLCON_READ_MSG_COMPLETE,
+    CLCON_VALIDATE_MSG,
+    CLCON_CONN_BIND_CLEAR,
+    CLCON_CONN_BIND,
+    CLCON_CONN_BIND_OK,
+    CLCON_ABORT_CONNECT,
+    CLCON_DELETE_CONNECT
+  } clcon_state_t;
+
+  InkAtomicList outgoing_control_al[CLUSTER_CMSG_QUEUES];
+  InkAtomicList external_incoming_control;
+  InkAtomicList external_incoming_open_local;
+  ClusterCalloutContinuation * callout_cont[MAX_COMPLETION_CALLBACK_EVENTS];
+  Event *callout_events[MAX_COMPLETION_CALLBACK_EVENTS];
+  Event *cluster_periodic_event;
+  Queue<OutgoingControl> outgoing_control[CLUSTER_CMSG_QUEUES];
+  Queue<IncomingControl> incoming_control;
+  InkAtomicList read_vcs_ready;
+  InkAtomicList write_vcs_ready;
+  ClusterState read;
+  ClusterState write;
+
+  ink_hrtime current_time;
+  ink_hrtime last;
+  ink_hrtime last_report;
+  int n_since_last_report;
+  ink_hrtime last_cluster_op_enable;
+  ink_hrtime last_trace_dump;
+
+  DLL<ClusterVConnectionBase> delayed_reads;
+  ClusterLoadMonitor *clm;
+  bool disable_remote_cluster_ops;
+
+  // process_write() state data
+  int pw_write_descriptors_built;
+  int pw_freespace_descriptors_built;
+  int pw_controldata_descriptors_built;
+  int pw_time_expired;
+  bool started_on_stolen_thread;
+  bool control_message_write;
+
+#ifdef CLUSTER_STATS
+    Ptr<IOBufferBlock> message_blk;
+
+  int64_t _vc_writes;
+  int64_t _vc_write_bytes;
+  int64_t _control_write_bytes;
+  int _dw_missed_lock;
+  int _dw_not_enabled;
+  int _dw_wait_remote_fill;
+  int _dw_no_active_vio;
+  int _dw_not_enabled_or_no_write;
+  int _dw_set_data_pending;
+  int _dw_no_free_space;
+  int _fw_missed_lock;
+  int _fw_not_enabled;
+  int _fw_wait_remote_fill;
+  int _fw_no_active_vio;
+  int _fw_not_enabled_or_no_read;
+  int _process_read_calls;
+  int _n_read_start;
+  int _n_read_header;
+  int _n_read_await_header;
+  int _n_read_setup_descriptor;
+  int _n_read_descriptor;
+  int _n_read_await_descriptor;
+  int _n_read_setup_data;
+  int _n_read_data;
+  int _n_read_await_data;
+  int _n_read_post_complete;
+  int _n_read_complete;
+  int _process_write_calls;
+  int _n_write_start;
+  int _n_write_setup;
+  int _n_write_initiate;
+  int _n_write_await_completion;
+  int _n_write_post_complete;
+  int _n_write_complete;
+
+  void clear_cluster_stats()
+  {
+    _vc_writes = 0;
+    _vc_write_bytes = 0;
+    _control_write_bytes = 0;
+    _dw_missed_lock = 0;
+    _dw_not_enabled = 0;
+    _dw_wait_remote_fill = 0;
+    _dw_no_active_vio = 0;
+    _dw_not_enabled_or_no_write = 0;
+    _dw_set_data_pending = 0;
+    _dw_no_free_space = 0;
+    _fw_missed_lock = 0;
+    _fw_not_enabled = 0;
+    _fw_wait_remote_fill = 0;
+    _fw_no_active_vio = 0;
+    _fw_not_enabled_or_no_read = 0;
+    _process_read_calls = 0;
+    _n_read_start = 0;
+    _n_read_header = 0;
+    _n_read_await_header = 0;
+    _n_read_setup_descriptor = 0;
+    _n_read_descriptor = 0;
+    _n_read_await_descriptor = 0;
+    _n_read_setup_data = 0;
+    _n_read_data = 0;
+    _n_read_await_data = 0;
+    _n_read_post_complete = 0;
+    _n_read_complete = 0;
+    _process_write_calls = 0;
+    _n_write_start = 0;
+    _n_write_setup = 0;
+    _n_write_initiate = 0;
+    _n_write_await_completion = 0;
+    _n_write_post_complete = 0;
+    _n_write_complete = 0;
+  }
+#endif                          // CLUSTER_STATS
+
+  ClusterHandler();
+  ~ClusterHandler();
+  bool check_channel(int c);
+  int alloc_channel(ClusterVConnection * vc, int requested_channel = 0);
+  void free_channel(ClusterVConnection * vc);
+//
+//  local_channel()
+//  - Initiator node-node TCP socket  &&  Odd channel  => Local Channel
+//  - !Initiator node-node TCP socket &&  Even channel => Local Channel
+  inline bool local_channel(int i)
+  {
+    return !connector == !(i & 1);
+  }
+
+  void close_ClusterVConnection(ClusterVConnection *);
+  int cluster_signal_and_update(int event, ClusterVConnection * vc, ClusterVConnState * s);
+  int cluster_signal_and_update_locked(int event, ClusterVConnection * vc, ClusterVConnState * s);
+  int cluster_signal_error_and_update(ClusterVConnection * vc, ClusterVConnState * s, int lerrno);
+  void close_free_lock(ClusterVConnection *, ClusterVConnState *);
+
+#define CLUSTER_READ       true
+#define CLUSTER_WRITE      false
+
+  bool build_data_vector(char *, int, bool);
+  bool build_initial_vector(bool);
+
+  void add_to_byte_bank(ClusterVConnection *);
+  void update_channels_read();
+  int process_incoming_callouts(ProxyMutex *);
+  void update_channels_partial_read();
+  void process_set_data_msgs();
+  void process_small_control_msgs();
+  void process_large_control_msgs();
+  void process_freespace_msgs();
+  bool complete_channel_read(int, ClusterVConnection * vc);
+  void finish_delayed_reads();
+  // returns: false if the channel was closed
+
+  void update_channels_written();
+
+  int build_write_descriptors();
+  int build_freespace_descriptors();
+  int build_controlmsg_descriptors();
+  int add_small_controlmsg_descriptors();
+  int valid_for_data_write(ClusterVConnection * vc);
+  int valid_for_freespace_write(ClusterVConnection * vc);
+
+  int machine_down();
+  int remote_close(ClusterVConnection * vc, ClusterVConnState * ns);
+  void steal_thread(EThread * t);
+
+#define CLUSTER_FREE_ALL_LOCKS -1
+  void free_locks(bool read_flag, int i = CLUSTER_FREE_ALL_LOCKS);
+  bool get_read_locks();
+  bool get_write_locks();
+  int zombify(Event * e = NULL);        // optional event to use
+
+  int connectClusterEvent(int event, Event * e);
+  int startClusterEvent(int event, Event * e);
+  int mainClusterEvent(int event, Event * e);
+  int beginClusterEvent(int event, Event * e);
+  int zombieClusterEvent(int event, Event * e);
+  int protoZombieEvent(int event, Event * e);
+
+  void vcs_push(ClusterVConnection * vc, int type);
+  bool vc_ok_read(ClusterVConnection *);
+  bool vc_ok_write(ClusterVConnection *);
+  int do_open_local_requests();
+  void swap_descriptor_bytes();
+  int process_read(ink_hrtime);
+  int process_write(ink_hrtime, bool);
+
+  void dump_write_msg(int);
+  void dump_read_msg();
+  int compute_active_channels();
+  void dump_internal_data();
+
+#ifdef CLUSTER_IMMEDIATE_NETIO
+  void build_poll(bool);
+#endif
+};
+
+// Valid (ClusterVConnection *) in ClusterHandler.channels[]
+#define VALID_CHANNEL(vc) (vc && !(((uintptr_t) vc) & 1))
+
+// outgoing control continuations
+extern ClassAllocator<OutgoingControl> outControlAllocator;
+
+// incoming control descriptors
+extern ClassAllocator<IncomingControl> inControlAllocator;
+
+#endif /* _ClusterHandler_h */
diff --git a/iocore/cluster/P_ClusterInline.h b/iocore/cluster/P_ClusterInline.h
new file mode 100644
index 00000000..b4c1f154
--- /dev/null
+++ b/iocore/cluster/P_ClusterInline.h
@@ -0,0 +1,402 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterInline.h
+****************************************************************************/
+
+#ifndef __P_CLUSTERINLINE_H__
+#define __P_CLUSTERINLINE_H__
+#include "P_ClusterCacheInternal.h"
+#include "P_CacheInternal.h"
+#include "P_ClusterHandler.h"
+
+inline Action *
+Cluster_lookup(Continuation * cont, CacheKey * key, CacheFragType frag_type, char *hostname, int host_len)
+{
+  // Try to send remote, if not possible, handle locally
+  Action *retAct;
+  ClusterMachine *m = cluster_machine_at_depth(cache_hash(*key));
+  if (m && !clusterProcessor.disable_remote_cluster_ops(m)) {
+    CacheContinuation *cc = CacheContinuation::cacheContAllocator_alloc();
+    cc->action = cont;
+    cc->mutex = cont->mutex;
+    retAct = CacheContinuation::do_remote_lookup(cont, key, cc, frag_type, hostname, host_len);
+    if (retAct) {
+      return retAct;
+    } else {
+      // not remote, do local lookup
+      CacheContinuation::cacheContAllocator_free(cc);
+      return (Action *) NULL;
+    }
+  } else {
+    Action a;
+    a = cont;
+    return CacheContinuation::callback_failure(&a, CACHE_EVENT_LOOKUP_FAILED, 0);
+  }
+  return (Action *) NULL;
+}
+
+inline Action *
+Cluster_read(ClusterMachine * owner_machine, int opcode,
+             Continuation * cont, MIOBuffer * buf,
+             CacheURL * url, CacheHTTPHdr * request,
+             CacheLookupHttpConfig * params, CacheKey * key,
+             time_t pin_in_cache, CacheFragType frag_type, char *hostname, int host_len)
+{
+  (void) params;
+  if (clusterProcessor.disable_remote_cluster_ops(owner_machine)) {
+    Action a;
+    a = cont;
+    return CacheContinuation::callback_failure(&a, CACHE_EVENT_OPEN_READ_FAILED, 0);
+  }
+  int vers = CacheOpMsg_long::protoToVersion(owner_machine->msg_proto_major);
+  int flen;
+  int len = 0;
+  int res = 0;
+  char *msg;
+  char *data;
+
+  if (vers == CacheOpMsg_long::CACHE_OP_LONG_MESSAGE_VERSION) {
+    if ((opcode == CACHE_OPEN_READ_LONG)
+        || (opcode == CACHE_OPEN_READ_BUFFER_LONG)) {
+      // Determine length of data to Marshal
+      flen = op_to_sizeof_fixedlen_msg(opcode);
+
+      const char *url_hostname;
+      int url_hlen;
+      INK_MD5 url_only_md5;
+
+      Cache::generate_key(&url_only_md5, url);
+      url_hostname = url->host_get(&url_hlen);
+
+      len += request->m_heap->marshal_length();
+      len += params->marshal_length();
+      len += url_hlen;
+
+      if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE)       // Bound marshalled data
+        goto err_exit;
+
+      // Perform data Marshal operation
+      msg = (char *) ALLOCA_DOUBLE(flen + len);
+      data = msg + flen;
+
+      int cur_len = len;
+
+      res = request->m_heap->marshal(data, cur_len);
+      if (res < 0) {
+        goto err_exit;
+      }
+      data += res;
+      cur_len -= res;
+      if ((res = params->marshal(data, cur_len)) < 0)
+        goto err_exit;
+      data += res;
+      memcpy(data, url_hostname, url_hlen);
+
+      CacheOpArgs_General readArgs;
+      readArgs.url_md5 = &url_only_md5;
+      readArgs.pin_in_cache = pin_in_cache;
+      readArgs.frag_type = frag_type;
+      return CacheContinuation::do_op(cont, owner_machine, (void *) &readArgs,
+                                      opcode, (char *) msg, (flen + len), -1, buf);
+    } else {
+      // Build message if we have host data.
+
+      if (host_len) {
+        // Determine length of data to Marshal
+        flen = op_to_sizeof_fixedlen_msg(opcode);
+        len = host_len;
+
+        if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE)     // Bound marshalled data
+          goto err_exit;
+
+        msg = (char *) ALLOCA_DOUBLE(flen + len);
+        data = msg + flen;
+        memcpy(data, hostname, host_len);
+
+      } else {
+        msg = 0;
+        flen = 0;
+        len = 0;
+      }
+      CacheOpArgs_General readArgs;
+      readArgs.url_md5 = key;
+      readArgs.frag_type = frag_type;
+      return CacheContinuation::do_op(cont, owner_machine, (void *) &readArgs,
+                                      opcode, (char *) msg, (flen + len), -1, buf);
+    }
+
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"CacheOpMsg_long [read] bad msg version");
+  }
+err_exit:
+  Action a;
+  a = cont;
+  return CacheContinuation::callback_failure(&a, CACHE_EVENT_OPEN_READ_FAILED, 0);
+}
+
+inline Action *
+Cluster_write(Continuation * cont, int expected_size,
+              MIOBuffer * buf, ClusterMachine * m,
+              INK_MD5 * url_md5, CacheFragType ft, int options,
+              time_t pin_in_cache, int opcode,
+              CacheKey * key, CacheURL * url,
+              CacheHTTPHdr * request, CacheHTTPInfo * old_info, char *hostname, int host_len)
+{
+  (void) key;
+  (void) request;
+  if (clusterProcessor.disable_remote_cluster_ops(m)) {
+    Action a;
+    a = cont;
+    return CacheContinuation::callback_failure(&a, CACHE_EVENT_OPEN_WRITE_FAILED, 0);
+  }
+  char *msg = 0;
+  char *data = 0;
+  int allow_multiple_writes = 0;
+  int len = 0;
+  int flen = 0;
+  int vers = CacheOpMsg_long::protoToVersion(m->msg_proto_major);
+
+  switch (opcode) {
+  case CACHE_OPEN_WRITE:
+    {
+      // Build message if we have host data
+      if (host_len) {
+        // Determine length of data to Marshal
+        flen = op_to_sizeof_fixedlen_msg(CACHE_OPEN_WRITE);
+        len = host_len;
+
+        if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE)     // Bound marshalled data
+          goto err_exit;
+
+        msg = (char *) ALLOCA_DOUBLE(flen + len);
+        data = msg + flen;
+
+        memcpy(data, hostname, host_len);
+      }
+      break;
+    }
+  case CACHE_OPEN_WRITE_LONG:
+    {
+      int url_hlen;
+      const char *url_hostname = url->host_get(&url_hlen);
+
+      // Determine length of data to Marshal
+      flen = op_to_sizeof_fixedlen_msg(CACHE_OPEN_WRITE_LONG);
+      len = 0;
+
+      if (old_info == (CacheHTTPInfo *) CACHE_ALLOW_MULTIPLE_WRITES) {
+        old_info = 0;
+        allow_multiple_writes = 1;
+      }
+      if (old_info) {
+        len += old_info->marshal_length();
+      }
+      len += url_hlen;
+
+      if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE)       // Bound marshalled data
+        goto err_exit;
+
+      // Perform data Marshal operation
+      msg = (char *) ALLOCA_DOUBLE(flen + len);
+      data = msg + flen;
+
+      if (old_info) {
+        int res = old_info->marshal(data, len);
+
+        if (res < 0) {
+          goto err_exit;
+        }
+        data += res;
+      }
+      memcpy(data, url_hostname, url_hlen);
+      break;
+    }
+  default:
+    {
+      ink_release_assert(!"open_write_internal invalid opcode.");
+    }                           // End of case
+  }                             // End of switch
+
+  if (vers == CacheOpMsg_long::CACHE_OP_LONG_MESSAGE_VERSION) {
+    // Do remote open_write()
+    CacheOpArgs_General writeArgs;
+    writeArgs.url_md5 = url_md5;
+    writeArgs.pin_in_cache = pin_in_cache;
+    writeArgs.frag_type = ft;
+    writeArgs.cfl_flags |= (options & CACHE_WRITE_OPT_OVERWRITE ? CFL_OVERWRITE_ON_WRITE : 0);
+    writeArgs.cfl_flags |= (old_info ? CFL_LOPENWRITE_HAVE_OLDINFO : 0);
+    writeArgs.cfl_flags |= (allow_multiple_writes ? CFL_ALLOW_MULTIPLE_WRITES : 0);
+
+    return CacheContinuation::do_op(cont, m, (void *) &writeArgs, opcode, msg, flen + len, expected_size, buf);
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"CacheOpMsg_long [write] bad msg version");
+    return (Action *) 0;
+  }
+
+err_exit:
+  Action a;
+  a = cont;
+  return CacheContinuation::callback_failure(&a, CACHE_EVENT_OPEN_WRITE_FAILED, 0);
+}
+
+inline Action *
+Cluster_link(ClusterMachine * m, Continuation * cont, CacheKey * from, CacheKey * to,
+             CacheFragType type, char *hostname, int host_len)
+{
+  if (clusterProcessor.disable_remote_cluster_ops(m)) {
+    Action a;
+    a = cont;
+    return CacheContinuation::callback_failure(&a, CACHE_EVENT_LINK_FAILED, 0);
+  }
+
+  int vers = CacheOpMsg_short_2::protoToVersion(m->msg_proto_major);
+  if (vers == CacheOpMsg_short_2::CACHE_OP_SHORT_2_MESSAGE_VERSION) {
+    // Do remote link
+
+    // Allocate memory for message header
+    int flen = op_to_sizeof_fixedlen_msg(CACHE_LINK);
+    int len = host_len;
+
+    if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE) // Bound marshalled data
+      goto err_exit;
+
+    char *msg = (char *) ALLOCA_DOUBLE(flen + len);
+    memcpy((msg + flen), hostname, host_len);
+
+    // Setup args for remote link
+    CacheOpArgs_Link linkArgs;
+    linkArgs.from = from;
+    linkArgs.to = to;
+    linkArgs.frag_type = type;
+    return CacheContinuation::do_op(cont, m, (void *) &linkArgs, CACHE_LINK, msg, (flen + len));
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"CacheOpMsg_short_2 [CACHE_LINK] bad msg version");
+    return 0;
+  }
+
+err_exit:
+  Action a;
+  a = cont;
+  return CacheContinuation::callback_failure(&a, CACHE_EVENT_LINK_FAILED, 0);
+}
+
+inline Action *
+Cluster_deref(ClusterMachine * m, Continuation * cont, CacheKey * key, CacheFragType type, char *hostname, int host_len)
+{
+  if (clusterProcessor.disable_remote_cluster_ops(m)) {
+    Action a;
+    a = cont;
+    return CacheContinuation::callback_failure(&a, CACHE_EVENT_DEREF_FAILED, 0);
+  }
+
+  int vers = CacheOpMsg_short::protoToVersion(m->msg_proto_major);
+  if (vers == CacheOpMsg_short::CACHE_OP_SHORT_MESSAGE_VERSION) {
+    // Do remote deref
+
+    // Allocate memory for message header
+    int flen = op_to_sizeof_fixedlen_msg(CACHE_DEREF);
+    int len = host_len;
+
+    if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE) // Bound marshalled data
+      goto err_exit;
+
+    char *msg = (char *) ALLOCA_DOUBLE(flen + len);
+    memcpy((msg + flen), hostname, host_len);
+
+    // Setup args for remote deref
+    CacheOpArgs_Deref drefArgs;
+    drefArgs.md5 = key;
+    drefArgs.frag_type = type;
+    return CacheContinuation::do_op(cont, m, (void *) &drefArgs, CACHE_DEREF, msg, (flen + len));
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"CacheOpMsg_short [CACHE_DEREF] bad msg version");
+    return 0;
+  }
+
+err_exit:
+  Action a;
+  a = cont;
+  return CacheContinuation::callback_failure(&a, CACHE_EVENT_DEREF_FAILED, 0);
+}
+
+inline Action *
+Cluster_remove(ClusterMachine * m, Continuation * cont, CacheKey * key,
+               bool rm_user_agents, bool rm_link, CacheFragType frag_type, char *hostname, int host_len)
+{
+  if (clusterProcessor.disable_remote_cluster_ops(m)) {
+    Action a;
+    a = cont;
+    return CacheContinuation::callback_failure(&a, CACHE_EVENT_REMOVE_FAILED, 0);
+  }
+
+  int vers = CacheOpMsg_short::protoToVersion(m->msg_proto_major);
+  if (vers == CacheOpMsg_short::CACHE_OP_SHORT_MESSAGE_VERSION) {
+    // Do remote update
+
+    // Allocate memory for message header
+    int flen = op_to_sizeof_fixedlen_msg(CACHE_REMOVE);
+    int len = host_len;
+
+    if ((flen + len) > DEFAULT_MAX_BUFFER_SIZE) // Bound marshalled data
+      goto err_exit;
+
+    char *msg = (char *) ALLOCA_DOUBLE(flen + len);
+    memcpy((msg + flen), hostname, host_len);
+
+    // Setup args for remote update
+    CacheOpArgs_General updateArgs;
+    updateArgs.url_md5 = key;
+    updateArgs.cfl_flags |= (rm_user_agents ? CFL_REMOVE_USER_AGENTS : 0);
+    updateArgs.cfl_flags |= (rm_link ? CFL_REMOVE_LINK : 0);
+    updateArgs.frag_type = frag_type;
+    return CacheContinuation::do_op(cont, m, (void *) &updateArgs, CACHE_REMOVE, msg, (flen + len));
+  } else {
+    //////////////////////////////////////////////////////////////
+    // Create the specified down rev version of this message
+    //////////////////////////////////////////////////////////////
+    ink_release_assert(!"CacheOpMsg_short [CACHE_REMOVE] bad msg version");
+    return (Action *) 0;
+  }
+
+err_exit:
+  Action a;
+  a = cont;
+  return CacheContinuation::callback_failure(&a, CACHE_EVENT_REMOVE_FAILED, 0);
+}
+
+#endif /* __CLUSTERINLINE_H__ */
diff --git a/iocore/cluster/P_ClusterInternal.h b/iocore/cluster/P_ClusterInternal.h
new file mode 100644
index 00000000..679461d2
--- /dev/null
+++ b/iocore/cluster/P_ClusterInternal.h
@@ -0,0 +1,521 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterInternal.h
+****************************************************************************/
+#include "P_ClusterCache.h"
+
+#ifndef _P_ClusterInternal_h
+#define _P_ClusterInternal_h
+
+/*************************************************************************/
+// Compilation Options
+/*************************************************************************/
+#define CLUSTER_THREAD_STEALING		1
+#define CLUSTER_TOMCAT			1
+#define CLUSTER_STATS			1
+
+
+#define ALIGN_DOUBLE(_p)   ((((uintptr_t) (_p)) + 7) & ~7)
+#define ALLOCA_DOUBLE(_sz) ALIGN_DOUBLE(alloca((_sz) + 8))
+
+/*************************************************************************/
+// Configuration Parameters
+/*************************************************************************/
+// Note: MAX_TCOUNT must be power of 2
+#define MAX_TCOUNT         	 128
+#define CONTROL_DATA             (128*1024)
+#define READ_BANK_BUF_SIZE 	 DEFAULT_MAX_BUFFER_SIZE
+#define READ_BANK_BUF_INDEX 	 (DEFAULT_BUFFER_SIZES-1)
+#define ALLOC_DATA_MAGIC	 0xA5   // 8 bits in size
+#define READ_LOCK_SPIN_COUNT	 1
+#define WRITE_LOCK_SPIN_COUNT	 1
+
+// Unix specific optimizations
+// #define CLUSTER_IMMEDIATE_NETIO       1
+
+  // (see ClusterHandler::mainClusterEvent)
+  // this is equivalent to a max of 0.7 seconds
+#define CLUSTER_BUCKETS          64
+#define CLUSTER_PERIOD           HRTIME_MSECONDS(10)
+
+  // Per instance maximum time allotted to cluster thread
+#define CLUSTER_MAX_RUN_TIME    HRTIME_MSECONDS(100)
+  // Per instance maximum time allotted to thread stealing
+#define CLUSTER_MAX_THREAD_STEAL_TIME 	HRTIME_MSECONDS(10)
+
+  // minimum number of channels to allocate
+#define MIN_CHANNELS             4096
+#define MAX_CHANNELS             ((32*1024) - 1)        // 15 bits in Descriptor
+
+#define CLUSTER_CONTROL_CHANNEL  0
+#define LAST_DEDICATED_CHANNEL   0
+
+#define CLUSTER_PHASES           1
+
+#define CLUSTER_INITIAL_PRIORITY CLUSTER_PHASES
+  // how often to retry connect to machines which are supposed to be in the
+  // cluster
+#define CLUSTER_BUMP_LENGTH      1
+#define CLUSTER_MEMBER_DELAY     HRTIME_SECONDS(1)
+  // How long to leave an unconnected ClusterVConnection waiting
+  // Note: assumes (CLUSTER_CONNECT_TIMEOUT == 2 * CACHE_CLUSTER_TIMEOUT)
+#ifdef CLUSTER_TEST_DEBUG
+#define CLUSTER_CONNECT_TIMEOUT  HRTIME_SECONDS(65536)
+#else
+#define CLUSTER_CONNECT_TIMEOUT  HRTIME_SECONDS(10)
+#endif
+#define CLUSTER_CONNECT_RETRY    HRTIME_MSECONDS(20)
+#define CLUSTER_RETRY            HRTIME_MSECONDS(10)
+#define CLUSTER_DELAY_BETWEEN_WRITES HRTIME_MSECONDS(10)
+
+  // Force close on cluster channel if no activity detected in this interval
+#ifdef CLUSTER_TEST_DEBUG
+#define CLUSTER_CHANNEL_INACTIVITY_TIMEOUT (65536 * HRTIME_SECONDS(60))
+#else
+#define CLUSTER_CHANNEL_INACTIVITY_TIMEOUT (10 * HRTIME_SECONDS(60))
+#endif
+
+  // Defines for work deferred to ET_NET threads
+#define COMPLETION_CALLBACK_PERIOD	HRTIME_MSECONDS(10)
+#define MAX_COMPLETION_CALLBACK_EVENTS	16
+
+  // ClusterHandler::mainClusterEvent() thread active state
+#define CLUSTER_ACTIVE           1
+#define CLUSTER_NOT_ACTIVE       0
+
+  // defines for ClusterHandler::remote_closed
+#define FORCE_CLOSE_ON_OPEN_CHANNEL	-2
+
+  // defines for machine_config_change()
+#define MACHINE_CONFIG 		0
+#define CLUSTER_CONFIG 		1
+
+// Debug interface category definitions
+#define CL_NOTE	 	"cluster_note"
+#define CL_WARN	 	"cluster_warn"
+#define CL_PROTO	"cluster_proto"
+#define CL_TRACE	"cluster_trace"
+
+/*************************************************************************/
+// Constants
+/*************************************************************************/
+#define MAX_FAST_CONTROL_MESSAGE 504    // 512 - 4 (cluster func #) - 4 align
+#define SMALL_CONTROL_MESSAGE    MAX_FAST_CONTROL_MESSAGE       // copied instead
+                                                           //  of vectored
+#define WRITE_MESSAGE_ALREADY_BUILT -1
+
+#define MAGIC_COUNT(_x) \
+(0xBADBAD ^ ~(uint32_t)_x.msg.count \
+ ^ ~(uint32_t)_x.msg.descriptor_cksum \
+ ^ ~(uint32_t)_x.msg.control_bytes_cksum \
+ ^ ~(uint32_t)_x.msg.unused \
+ ^ ~((uint32_t)_x.msg.control_bytes << 16) ^_x.sequence_number)
+
+#define DOUBLE_ALIGN(_x)    ((((uintptr_t)_x)+7)&~7)
+
+/*************************************************************************/
+// Testing Defines
+/*************************************************************************/
+#define MISS_TEST                0
+#define TEST_PARTIAL_WRITES      0
+#define TEST_PARTIAL_READS       0
+#define TEST_TIMING              0
+#define TEST_READ_LOCKS_MISSED   0
+#define TEST_WRITE_LOCKS_MISSED  0
+#define TEST_ENTER_EXIT          0
+#define TEST_ENTER_EXIT          0
+
+//
+// Timing testing
+//
+#if TEST_TIMING
+#define TTTEST(_x) \
+fprintf(stderr, _x " at: %u\n", \
+	((unsigned int)(ink_get_hrtime()/HRTIME_MSECOND)) % 1000)
+#define TTEST(_x) \
+fprintf(stderr, _x " for: %d at: %u\n", vc->channel, \
+	((unsigned int)(ink_get_hrtime()/HRTIME_MSECOND)) % 1000)
+#define TIMEOUT_TESTS(_s,_d) \
+    if (*(int*)_d == 8)  \
+      fprintf(stderr,_s" lookup  %d\n", *(int*)(_d+20)); \
+    else if (*(int*)_d == 10) \
+      fprintf(stderr,_s" op %d %d\n", *(int*)(_d+36), \
+	      *(int*)(_d+40)); \
+    else if (*(int*)_d == 11) \
+      fprintf(stderr,_s" rop %d %d\n", *(int*)(_d+4), \
+	      *(int*)(_d+8))
+#else
+#define TTTEST(_x)
+#define TTEST(_x)
+#define TIMEOUT_TESTS(_x,_y)
+#endif
+
+#if (TEST_READ_LOCKS_MISSED || TEST_WRITE_LOCKS_MISSED)
+static unsigned int test_cluster_locks_missed = 0;
+static
+test_cluster_lock_might_fail()
+{
+  return (!(rand_r(&test_cluster_locks_missed) % 13));
+}
+#endif
+#if TEST_READ_LOCKS_MISSED
+#define TEST_READ_LOCK_MIGHT_FAIL test_cluster_lock_might_fail()
+#else
+#define TEST_READ_LOCK_MIGHT_FAIL false
+#endif
+#if TEST_WRITE_LOCKS_MISSED
+#define TEST_WRITE_LOCK_MIGHT_FAIL test_cluster_lock_might_fail()
+#else
+#define TEST_WRITE_LOCK_MIGHT_FAIL false
+#endif
+
+#if TEST_ENTER_EXIT
+struct enter_exit_class
+{
+  int *outv;
+    enter_exit_class(int *in, int *out):outv(out)
+  {
+    (*in)++;
+  }
+   ~enter_exit_class()
+  {
+    (*outv)++;
+  }
+};
+
+#define enter_exit(_x,_y) enter_exit_class a(_x,_y)
+#else
+#define enter_exit(_x,_y)
+#endif
+
+#define DOT_SEPARATED(_x)                             \
+((unsigned char*)&(_x))[0], ((unsigned char*)&(_x))[1],   \
+  ((unsigned char*)&(_x))[2], ((unsigned char*)&(_x))[3]
+
+//
+// RPC message for CLOSE_CHANNEL_CLUSTER_FUNCTION
+//
+struct CloseMessage:public ClusterMessageHeader
+{
+  uint32_t channel;
+  int32_t status;
+  int32_t lerrno;
+  uint32_t sequence_number;
+
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    CLOSE_CHAN_MESSAGE_VERSION = MAX_VERSION
+  };
+
+    CloseMessage(uint16_t vers = CLOSE_CHAN_MESSAGE_VERSION)
+:  ClusterMessageHeader(vers), channel(0), status(0), lerrno(0), sequence_number(0) {
+  }
+  ////////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return CLOSE_CHAN_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return sizeof(CloseMessage);
+  }
+  void init(uint16_t vers = CLOSE_CHAN_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ats_swap32(&channel);
+      ats_swap32((uint32_t *) & status);
+      ats_swap32((uint32_t *) & lerrno);
+      ats_swap32(&sequence_number);
+    }
+  }
+  ////////////////////////////////////////////////////////////////////////////
+};
+
+//
+// RPC message for MACHINE_LIST_CLUSTER_FUNCTION
+//
+struct MachineListMessage:public ClusterMessageHeader
+{
+  uint32_t n_ip;                  // Valid entries in ip[]
+  uint32_t ip[CLUSTER_MAX_MACHINES];      // variable length data
+
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    MACHINE_LIST_MESSAGE_VERSION = MAX_VERSION
+  };
+
+    MachineListMessage():ClusterMessageHeader(MACHINE_LIST_MESSAGE_VERSION), n_ip(0)
+  {
+    memset(ip, 0, sizeof(ip));
+  }
+  ////////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return MACHINE_LIST_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return sizeof(ClusterMessageHeader);
+  }
+  void init(uint16_t vers = MACHINE_LIST_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    ats_swap32(&n_ip);
+  }
+  ////////////////////////////////////////////////////////////////////////////
+};
+
+//
+// RPC message for SET_CHANNEL_DATA_CLUSTER_FUNCTION
+//
+struct SetChanDataMessage:public ClusterMessageHeader
+{
+  uint32_t channel;
+  uint32_t sequence_number;
+  uint32_t data_type;             // enum CacheDataType
+  char data[4];
+
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    SET_CHANNEL_DATA_MESSAGE_VERSION = MAX_VERSION
+  };
+
+    SetChanDataMessage(uint16_t vers = SET_CHANNEL_DATA_MESSAGE_VERSION)
+:  ClusterMessageHeader(vers), channel(0), sequence_number(0), data_type(0) {
+    memset(data, 0, sizeof(data));
+  }
+  ////////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return SET_CHANNEL_DATA_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    SetChanDataMessage *p = 0;
+    return (int) DOUBLE_ALIGN((int64_t) ((char *) &p->data[0] - (char *) p));
+  }
+  void init(uint16_t vers = SET_CHANNEL_DATA_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ats_swap32(&channel);
+      ats_swap32(&sequence_number);
+      ats_swap32(&data_type);
+    }
+  }
+  ////////////////////////////////////////////////////////////////////////////
+};
+
+//
+// RPC message for SET_CHANNEL_PIN_CLUSTER_FUNCTION
+//
+struct SetChanPinMessage:public ClusterMessageHeader
+{
+  uint32_t channel;
+  uint32_t sequence_number;
+  uint32_t pin_time;
+
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    SET_CHANNEL_PIN_MESSAGE_VERSION = MAX_VERSION
+  };
+
+    SetChanPinMessage(uint16_t vers = SET_CHANNEL_PIN_MESSAGE_VERSION)
+:  ClusterMessageHeader(vers), channel(0), sequence_number(0), pin_time(0) {
+  }
+  ////////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return SET_CHANNEL_PIN_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) sizeof(SetChanPinMessage);
+  }
+  void init(uint16_t vers = SET_CHANNEL_PIN_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ats_swap32(&channel);
+      ats_swap32(&sequence_number);
+      ats_swap32(&pin_time);
+    }
+  }
+  ////////////////////////////////////////////////////////////////////////////
+};
+
+//
+// RPC message for SET_CHANNEL_PRIORITY_CLUSTER_FUNCTION
+//
+struct SetChanPriorityMessage:public ClusterMessageHeader
+{
+  uint32_t channel;
+  uint32_t sequence_number;
+  uint32_t disk_priority;
+
+  enum
+  {
+    MIN_VERSION = 1,
+    MAX_VERSION = 1,
+    SET_CHANNEL_PRIORITY_MESSAGE_VERSION = MAX_VERSION
+  };
+
+    SetChanPriorityMessage(uint16_t vers = SET_CHANNEL_PRIORITY_MESSAGE_VERSION)
+:  ClusterMessageHeader(vers), channel(0), sequence_number(0), disk_priority(0) {
+  }
+  ////////////////////////////////////////////////////////////////////////////
+  static int protoToVersion(int protoMajor)
+  {
+    (void) protoMajor;
+    return SET_CHANNEL_PRIORITY_MESSAGE_VERSION;
+  }
+  static int sizeof_fixedlen_msg()
+  {
+    return (int) sizeof(SetChanPriorityMessage);
+  }
+  void init(uint16_t vers = SET_CHANNEL_PRIORITY_MESSAGE_VERSION) {
+    _init(vers);
+  }
+  inline void SwapBytes()
+  {
+    if (NeedByteSwap()) {
+      ats_swap32(&channel);
+      ats_swap32(&sequence_number);
+      ats_swap32(&disk_priority);
+    }
+  }
+  ////////////////////////////////////////////////////////////////////////////
+};
+
+inline void
+SetHighBit(int *val)
+{
+  *val |= (1 << ((sizeof(int) * 8) - 1));
+}
+
+inline void
+ClearHighBit(int *val)
+{
+  *val &= ~(1 << ((sizeof(int) * 8) - 1));
+}
+
+inline int
+IsHighBitSet(int *val)
+{
+  return (*val & (1 << ((sizeof(int) * 8) - 1)));
+}
+
+/////////////////////////////////////////////////////////////////
+// ClusterAccept -- Handle cluster connect events from peer
+//                  cluster nodes.
+/////////////////////////////////////////////////////////////////
+class ClusterAccept:public Continuation
+{
+public:
+  ClusterAccept(int *, int, int);
+  void Init();
+  void ShutdownDelete();
+  int ClusterAcceptEvent(int, void *);
+  int ClusterAcceptMachine(NetVConnection *);
+
+   ~ClusterAccept();
+private:
+
+  int *p_cluster_port;
+  int socket_send_bufsize;
+  int socket_recv_bufsize;
+  int current_cluster_port;
+  Action *accept_action;
+  Event *periodic_event;
+};
+
+// VC++ 5.0 special
+struct ClusterHandler;
+typedef int (ClusterHandler::*ClusterContHandler) (int, void *);
+
+struct OutgoingControl;
+typedef int (OutgoingControl::*OutgoingCtrlHandler) (int, void *);
+
+struct ClusterVConnection;
+typedef int (ClusterVConnection::*ClusterVConnHandler) (int, void *);
+
+typedef struct iovec IOVec;
+
+// Library  declarations
+extern void cluster_set_priority(ClusterHandler *, ClusterVConnState *, int);
+extern void cluster_lower_priority(ClusterHandler *, ClusterVConnState *);
+extern void cluster_raise_priority(ClusterHandler *, ClusterVConnState *);
+extern void cluster_schedule(ClusterHandler *, ClusterVConnection *, ClusterVConnState *);
+extern void cluster_reschedule(ClusterHandler *, ClusterVConnection *, ClusterVConnState *);
+extern void cluster_reschedule_offset(ClusterHandler *, ClusterVConnection *, ClusterVConnState *, int);
+extern void cluster_disable(ClusterHandler *, ClusterVConnection *, ClusterVConnState *);
+extern void cluster_update_priority(ClusterHandler *, ClusterVConnection *, ClusterVConnState *, int64_t, int64_t);
+#define CLUSTER_BUMP_NO_REMOVE    -1
+extern void cluster_bump(ClusterHandler *, ClusterVConnectionBase *, ClusterVConnState *, int);
+extern int iov_memcpy(IOVec *, int, int, char *);
+
+extern IOBufferBlock *clone_IOBufferBlockList(IOBufferBlock *, int, int, IOBufferBlock **);
+extern IOBufferBlock *consume_IOBufferBlockList(IOBufferBlock *, int64_t);
+extern int64_t bytes_IOBufferBlockList(IOBufferBlock *, int64_t);
+
+// ClusterVConnection declarations
+extern void clusterVCAllocator_free(ClusterVConnection * vc);
+extern ClassAllocator<ClusterVConnection> clusterVCAllocator;
+extern ClassAllocator<ByteBankDescriptor> byteBankAllocator;
+
+// Cluster configuration declarations
+extern int cluster_port;
+// extern void * machine_config_change(void *, void *);
+int machine_config_change(const char *, RecDataT, RecData, void *);
+extern void do_machine_config_change(void *, const char *);
+
+// Cluster API support functions
+extern void clusterAPI_init();
+extern void machine_online_APIcallout(int);
+extern void machine_offline_APIcallout(int);
+#endif /* _ClusterInternal_h */
diff --git a/iocore/cluster/P_ClusterLib.h b/iocore/cluster/P_ClusterLib.h
new file mode 100644
index 00000000..9aaceeb1
--- /dev/null
+++ b/iocore/cluster/P_ClusterLib.h
@@ -0,0 +1,72 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ClusterLib.h
+
+
+****************************************************************************/
+
+#ifndef _P_ClusterLib_h
+#define _P_ClusterLib_h
+
+#include "P_Cluster.h"
+
+extern void cluster_set_priority(ClusterHandler *, ClusterVConnState *, int);
+extern void cluster_lower_priority(ClusterHandler *, ClusterVConnState *);
+extern void cluster_raise_priority(ClusterHandler *, ClusterVConnState *);
+extern void cluster_schedule(ClusterHandler *, ClusterVConnection *, ClusterVConnState *);
+extern void cluster_reschedule(ClusterHandler *, ClusterVConnection *, ClusterVConnState *);
+extern void cluster_disable(ClusterHandler *, ClusterVConnection *, ClusterVConnState *);
+extern void cluster_update_priority(ClusterHandler *, ClusterVConnection *, ClusterVConnState *, int64_t, int64_t);
+extern void cluster_bump(ClusterHandler *, ClusterVConnectionBase *, ClusterVConnState *, int);
+extern int iov_memcpy(IOVec *, int, int, char *);
+
+#if TEST_PARTIAL_READS
+extern int partial_readv(int, IOVec *, int, int);
+#endif
+
+#if TEST_PARTIAL_WRITES
+extern int partial_writev(int, IOVec *, int, int);
+#endif
+
+extern void dump_time_buckets();
+
+struct GlobalClusterPeriodicEvent;
+typedef int (GlobalClusterPeriodicEvent::*GClusterPEHandler) (int, void *);
+
+struct GlobalClusterPeriodicEvent:public Continuation
+{
+  GlobalClusterPeriodicEvent();
+  ~GlobalClusterPeriodicEvent();
+  void init();
+  int calloutEvent(Event * e, void *data);
+
+  // Private data
+  Event *_thisCallout;
+};
+
+#endif /* _ClusterLib_h */
+
+// End of ClusterLib.h
diff --git a/iocore/cluster/P_ClusterLoadMonitor.h b/iocore/cluster/P_ClusterLoadMonitor.h
new file mode 100644
index 00000000..89156bde
--- /dev/null
+++ b/iocore/cluster/P_ClusterLoadMonitor.h
@@ -0,0 +1,118 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ClusterLoadMonitor.h
+****************************************************************************/
+
+#ifndef _P_ClusterLoadMonitor_h
+#define _P_ClusterLoadMonitor_h
+
+#include "P_Cluster.h"
+
+//***************************************************************************
+// ClusterLoadMonitor class -- Compute cluster interconnect load metric
+//***************************************************************************
+class ClusterLoadMonitor:public Continuation
+{
+public:
+  /////////////////////////////////////
+  // Defined by records.config
+  /////////////////////////////////////
+  static int cf_monitor_enabled;
+  static int cf_ping_message_send_msec_interval;
+  static int cf_num_ping_response_buckets;
+  static int cf_msecs_per_ping_response_bucket;
+  static int cf_ping_latency_threshold_msecs;
+  static int cf_cluster_load_compute_msec_interval;
+  static int cf_cluster_periodic_msec_interval;
+  static int cf_ping_history_buf_length;
+  static int cf_cluster_load_clear_duration;
+  static int cf_cluster_load_exceed_duration;
+
+  struct cluster_load_ping_msg
+  {
+    int magicno;
+    int version;
+    int sequence_number;
+    ink_hrtime send_time;
+    ClusterLoadMonitor *monitor;
+
+    enum
+    {
+      CL_MSG_MAGICNO = 0x12ABCDEF,
+      CL_MSG_VERSION = 1
+    };
+      cluster_load_ping_msg(ClusterLoadMonitor * m = 0)
+  :  magicno(CL_MSG_MAGICNO), version(CL_MSG_VERSION), sequence_number(0), send_time(0), monitor(m) {
+    }
+  };
+
+  static void cluster_load_ping_rethandler(ClusterHandler *, void *, int);
+
+public:
+  ClusterLoadMonitor(ClusterHandler * ch);
+  void init();
+  ~ClusterLoadMonitor();
+  void cancel_monitor();
+  bool is_cluster_overloaded();
+
+private:
+  void compute_cluster_load();
+  void note_ping_response_time(ink_hrtime, int);
+  void recv_cluster_load_msg(cluster_load_ping_msg *);
+  void send_cluster_load_msg(ink_hrtime);
+  int cluster_load_periodic(int, Event *);
+
+private:
+  ////////////////////////////////////////////////////
+  // Copy of global configuration (records.config)
+  ////////////////////////////////////////////////////
+  int ping_message_send_msec_interval;
+  int num_ping_response_buckets;
+  int msecs_per_ping_response_bucket;
+  int ping_latency_threshold_msecs;
+  int cluster_load_compute_msec_interval;
+  int cluster_periodic_msec_interval;
+  int ping_history_buf_length;
+  int cluster_load_clear_duration;
+  int cluster_load_exceed_duration;
+
+  // Class specific data
+  ClusterHandler *ch;
+  int *ping_response_buckets;
+  ink_hrtime *ping_response_history_buf;
+  int ping_history_buf_head;
+  Action *periodic_action;
+
+  int cluster_overloaded;
+  int cancel_periodic;
+  ink_hrtime last_ping_message_sent;
+  ink_hrtime last_cluster_load_compute;
+  int cluster_load_msg_sequence_number;
+  int cluster_load_msg_start_sequence_number;
+};
+
+#endif /* _ClusterLoadMonitor_h */
diff --git a/iocore/cluster/P_ClusterMachine.h b/iocore/cluster/P_ClusterMachine.h
new file mode 100644
index 00000000..848a2b26
--- /dev/null
+++ b/iocore/cluster/P_ClusterMachine.h
@@ -0,0 +1,135 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Machine.h
+ ****************************************************************************/
+
+
+//
+//  The Machine is the set of processes which share part of an
+//  address space.
+//
+
+#ifndef _P_ClusterMachine_h
+#define _P_ClusterMachine_h
+
+//
+// Timeout the Machine * this amount of time after they
+// fall out of the current configuration that are deleted.
+//
+#define MACHINE_TIMEOUT            (HRTIME_DAY*2)
+
+
+//
+//  This is the time processors should delay before freeing up resouces
+//  which are shared with other threads in non-long running operations.
+//  For example, a Machine * is returned by the hash and used to do
+//  a remote invoke.  For the pointer to remain valid (or be recognized as
+//  invalid) he resource should not be raclaimed for NO_RACE_DELAY.
+//
+//  Long running operations should use more sophisticated synchronization.
+//
+#define NO_RACE_DELAY                  HRTIME_HOUR      // a long long time
+
+struct ClusterHandler;           // Leave this a class - VC++ gets very anal  ~SR -- which version of VC++? ~igalic
+
+struct ClusterMachine: public Server
+{
+  bool dead;
+  char *hostname;
+  int hostname_len;
+  //
+  // The network address of the current machine,
+  // stored in network byte order
+  //
+  unsigned int ip;
+  int cluster_port;
+  int num_connections;
+  int now_connections;
+  int free_connections;
+  int64_t rr_count;
+
+  Link<ClusterMachine> link;
+
+  // default for localhost
+  ClusterMachine(char *hostname = NULL, unsigned int ip = 0, int acluster_port = 0);
+  ~ClusterMachine();
+  ClusterHandler *pop_ClusterHandler(int no_rr = 0);
+
+  // Cluster message protocol version
+  uint16_t msg_proto_major;
+  uint16_t msg_proto_minor;
+
+  // Private data for ClusterProcessor
+  //
+  ClusterHandler **clusterHandlers;
+};
+
+struct MachineListElement
+{
+  unsigned int ip;
+  int port;
+};
+
+struct MachineList
+{
+  int n;
+  MachineListElement machine[1];
+  MachineListElement *find(unsigned int ip, int port = 0) {
+    for (int i = 0; i < n; i++)
+      if (machine[i].ip == ip && (!port || machine[i].port == port))
+        return &machine[i];
+    return NULL;
+  }
+};
+
+MachineList *read_MachineList(char *filename, int test_fd = -1);
+void free_MachineList(MachineList * l);
+
+struct clusterConfigFile
+{
+  char *parseFile(int fd)
+  {
+    return (char *) read_MachineList(NULL, fd);
+  }
+};
+
+inkcoreapi ClusterMachine *this_cluster_machine();
+void create_this_cluster_machine();
+
+void free_ClusterMachine(ClusterMachine * m);
+
+MachineList *the_cluster_machines_config();
+MachineList *the_cluster_config();
+extern ProxyMutex *the_cluster_config_mutex;
+
+//
+// Private
+//
+extern MachineList *machines_config;
+extern MachineList *cluster_config;
+
+
+#endif /* _Machine_h */
diff --git a/iocore/cluster/P_TimeTrace.h b/iocore/cluster/P_TimeTrace.h
new file mode 100644
index 00000000..e4f3796a
--- /dev/null
+++ b/iocore/cluster/P_TimeTrace.h
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  TimeTrace.h
+ ****************************************************************************/
+
+#ifndef _P_TimeTrace_h_
+#define _P_TimeTrace_h_
+
+// #define ENABLE_TIME_TRACE
+
+#define TIME_DIST_BUCKETS               500
+#define TIME_DIST_BUCKETS_SIZE          TIME_DIST_BUCKETS+1
+
+#ifdef ENABLE_TIME_TRACE
+extern int cdb_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cdb_cache_callbacks;
+
+extern int callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cache_callbacks;
+
+extern int rmt_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int rmt_cache_callbacks;
+
+extern int lkrmt_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int lkrmt_cache_callbacks;
+
+extern int cntlck_acquire_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cntlck_acquire_events;
+
+extern int immediate_events_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cnt_immediate_events;
+
+extern int inmsg_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int inmsg_events;
+
+extern int open_delay_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int open_delay_events;
+
+extern int cluster_send_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cluster_send_events;
+#endif // ENABLE_TIME_TRACE
+
+#ifdef ENABLE_TIME_TRACE
+#define LOG_EVENT_TIME(_start_time, _time_dist, _time_cnt) do { \
+  ink_hrtime now = ink_get_hrtime(); \
+  unsigned int bucket = (now - _start_time) / HRTIME_MSECONDS(10); \
+  if (bucket > TIME_DIST_BUCKETS) \
+    bucket = TIME_DIST_BUCKETS; \
+  ink_atomic_increment(&_time_dist[bucket], 1); \
+  ink_atomic_increment(&_time_cnt, 1); \
+} while(0)
+
+#else // !ENABLE_TIME_TRACE
+#define LOG_EVENT_TIME(_start_time, _time_dist, _time_cnt)
+#endif // !ENABLE_TIME_TRACE
+
+#endif // _TimeTrace_h_
+
+// End of TimeTrace.h
diff --git a/iocore/cluster/test_I_Cluster.cc b/iocore/cluster/test_I_Cluster.cc
new file mode 100644
index 00000000..587834f3
--- /dev/null
+++ b/iocore/cluster/test_I_Cluster.cc
@@ -0,0 +1,147 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  This is a bogus test file because it does not need any cluster
+  functions : the actual test file is in the cache directory.
+  This file is a placeholder because each module is supposed to
+  have a test file
+  */
+
+#include "P_Cluster.h"
+#include <iostream.h>
+#include <fstream.h>
+
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+  // XXX: HP-UX ???
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+
+int
+main(int argc, char *argv[])
+{
+  int i;
+  int num_net_threads = ink_number_of_processors();
+  init_diags("", NULL);
+  RecProcessInit(RECM_STAND_ALONE);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(num_net_threads);
+  RecProcessStart();
+  // ink_aio_init(AIO_MODULE_VERSION);
+
+  this_thread()->execute();
+}
diff --git a/iocore/cluster/test_P_Cluster.cc b/iocore/cluster/test_P_Cluster.cc
new file mode 100644
index 00000000..587834f3
--- /dev/null
+++ b/iocore/cluster/test_P_Cluster.cc
@@ -0,0 +1,147 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  This is a bogus test file because it does not need any cluster
+  functions : the actual test file is in the cache directory.
+  This file is a placeholder because each module is supposed to
+  have a test file
+  */
+
+#include "P_Cluster.h"
+#include <iostream.h>
+#include <fstream.h>
+
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+  // XXX: HP-UX ???
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+
+int
+main(int argc, char *argv[])
+{
+  int i;
+  int num_net_threads = ink_number_of_processors();
+  init_diags("", NULL);
+  RecProcessInit(RECM_STAND_ALONE);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(num_net_threads);
+  RecProcessStart();
+  // ink_aio_init(AIO_MODULE_VERSION);
+
+  this_thread()->execute();
+}
diff --git a/iocore/dns/DNS.cc b/iocore/dns/DNS.cc
new file mode 100644
index 00000000..0d6d233b
--- /dev/null
+++ b/iocore/dns/DNS.cc
@@ -0,0 +1,1721 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_DNS.h" /* MAGIC_EDITING_TAG */
+#include <ts/ink_inet.h>
+
+#ifdef SPLIT_DNS
+#include "I_SplitDNS.h"
+#endif
+
+#define SRV_COST    (RRFIXEDSZ+0)
+#define SRV_WEIGHT  (RRFIXEDSZ+2)
+#define SRV_PORT    (RRFIXEDSZ+4)
+#define SRV_SERVER  (RRFIXEDSZ+6)
+#define SRV_FIXEDSZ (RRFIXEDSZ+6)
+
+EventType ET_DNS = ET_CALL;
+
+//
+// Config
+//
+int dns_timeout = DEFAULT_DNS_TIMEOUT;
+int dns_retries = DEFAULT_DNS_RETRIES;
+int dns_search = DEFAULT_DNS_SEARCH;
+int dns_failover_number = DEFAULT_FAILOVER_NUMBER;
+int dns_failover_period = DEFAULT_FAILOVER_PERIOD;
+int dns_failover_try_period = DEFAULT_FAILOVER_TRY_PERIOD;
+int dns_max_dns_in_flight = MAX_DNS_IN_FLIGHT;
+int dns_validate_qname = 0;
+unsigned int dns_handler_initialized = 0;
+int dns_ns_rr = 0;
+int dns_ns_rr_init_down = 1;
+char *dns_ns_list = NULL;
+char *dns_resolv_conf = NULL;
+char *dns_local_ipv6 = NULL;
+char *dns_local_ipv4 = NULL;
+int dns_thread = 0;
+int dns_prefer_ipv6 = 0;
+namespace {
+  // Currently only used for A and AAAA.
+  inline char const* QtypeName(int qtype) {
+    return T_AAAA == qtype ? "AAAA" : T_A == qtype ? "A" : "*";
+  }
+  inline bool is_addr_query(int qtype) {
+    return qtype == T_A || qtype == T_AAAA;
+  }
+}
+
+DNSProcessor dnsProcessor;
+ClassAllocator<DNSEntry> dnsEntryAllocator("dnsEntryAllocator");
+// Users are expected to free these entries in short order!
+// We could page align this buffer to enable page flipping for recv...
+ClassAllocator<HostEnt> dnsBufAllocator("dnsBufAllocator", 2);
+
+
+//
+// Function Prototypes
+//
+static bool dns_process(DNSHandler *h, HostEnt *ent, int len);
+static DNSEntry *get_dns(DNSHandler *h, uint16_t id);
+// returns true when e is done
+static void dns_result(DNSHandler *h, DNSEntry *e, HostEnt *ent, bool retry);
+static void write_dns(DNSHandler *h);
+static bool write_dns_event(DNSHandler *h, DNSEntry *e);
+
+// "reliable" name to try. need to build up first.
+static int try_servers = 0;
+static int local_num_entries = 1;
+static int attempt_num_entries = 1;
+char try_server_names[DEFAULT_NUM_TRY_SERVER][MAXDNAME];
+
+static inline char *
+strnchr(char *s, char c, int len) {
+  while (*s && *s != c && len)
+    ++s, --len;
+  return *s == c ? s : (char *) NULL;
+}
+
+static inline uint16_t
+ink_get16(const uint8_t *src) {
+  uint16_t dst;
+
+  NS_GET16(dst, src);
+  return dst;
+}
+
+void HostEnt::free() {
+  dnsBufAllocator.free(this);
+}
+
+void
+make_ipv4_ptr(in_addr_t addr, char *buffer)
+{
+    char *p = buffer;
+    uint8_t const* u = reinterpret_cast<uint8_t*>(&addr);
+
+    if (u[3] > 99)
+      *p++ = (u[3] / 100) + '0';
+    if (u[3] > 9)
+      *p++ = ((u[3] / 10) % 10) + '0';
+    *p++ = u[3] % 10 + '0';
+    *p++ = '.';
+    if (u[2] > 99)
+      *p++ = (u[2] / 100) + '0';
+    if (u[2] > 9)
+      *p++ = ((u[2] / 10) % 10) + '0';
+    *p++ = u[2] % 10 + '0';
+    *p++ = '.';
+    if (u[1] > 99)
+      *p++ = (u[1] / 100) + '0';
+    if (u[1] > 9)
+      *p++ = ((u[1] / 10) % 10) + '0';
+    *p++ = u[1] % 10 + '0';
+    *p++ = '.';
+    if (u[0] > 99)
+      *p++ = (u[0] / 100) + '0';
+    if (u[0] > 9)
+      *p++ = ((u[0] / 10) % 10) + '0';
+    *p++ = u[0] % 10 + '0';
+    *p++ = '.';
+    ink_strlcpy(p, "in-addr.arpa", MAXDNAME - (p - buffer + 1));
+}
+
+void
+make_ipv6_ptr(in6_addr const* addr, char *buffer)
+{
+    const char hex_digit[] = "0123456789abcdef";
+    char *p = buffer;
+    uint8_t const* src = addr->s6_addr;
+    int i;
+
+    for (i = TS_IP6_SIZE-1 ; i >= 0; --i) {
+        *p++ = hex_digit[src[i] & 0x0f];
+        *p++ = '.';
+        *p++ = hex_digit[src[i] >> 4];
+        *p++ = '.';
+    }
+
+    ink_strlcpy(p, "ip6.arpa", MAXDNAME - (p - buffer + 1));
+}
+
+//  Public functions
+//
+//  See documentation is header files and Memos
+//
+int
+DNSProcessor::start(int, size_t stacksize) {
+  //
+  // Read configuration
+  //
+  REC_EstablishStaticConfigInt32(dns_retries, "proxy.config.dns.retries");
+  REC_EstablishStaticConfigInt32(dns_timeout, "proxy.config.dns.lookup_timeout");
+  REC_EstablishStaticConfigInt32(dns_search, "proxy.config.dns.search_default_domains");
+  REC_EstablishStaticConfigInt32(dns_failover_number, "proxy.config.dns.failover_number");
+  REC_EstablishStaticConfigInt32(dns_failover_period, "proxy.config.dns.failover_period");
+  REC_EstablishStaticConfigInt32(dns_max_dns_in_flight, "proxy.config.dns.max_dns_in_flight");
+  REC_EstablishStaticConfigInt32(dns_validate_qname, "proxy.config.dns.validate_query_name");
+  REC_EstablishStaticConfigInt32(dns_ns_rr, "proxy.config.dns.round_robin_nameservers");
+  REC_ReadConfigStringAlloc(dns_ns_list, "proxy.config.dns.nameservers");
+  REC_ReadConfigStringAlloc(dns_local_ipv4, "proxy.config.dns.local_ipv4");
+  REC_ReadConfigStringAlloc(dns_local_ipv6, "proxy.config.dns.local_ipv6");
+  REC_ReadConfigStringAlloc(dns_resolv_conf, "proxy.config.dns.resolv_conf");
+  REC_EstablishStaticConfigInt32(dns_thread, "proxy.config.dns.dedicated_thread");
+
+  if (dns_thread > 0) {
+    // TODO: Hmmm, should we just get a single thread some other way?
+    ET_DNS = eventProcessor.spawn_event_threads(1, "ET_DNS", stacksize);
+    initialize_thread_for_net(eventProcessor.eventthread[ET_DNS][0]);
+  } else {
+    // Initialize the first event thread for DNS.
+    ET_DNS = ET_CALL;
+  }
+  thread = eventProcessor.eventthread[ET_DNS][0];
+
+  dns_failover_try_period = dns_timeout + 1;    // Modify the "default" accordingly
+
+  if (SplitDNSConfig::gsplit_dns_enabled) {
+    //reconfigure after threads start
+    SplitDNSConfig::reconfigure();
+  }
+
+  // Setup the default DNSHandler, it's used both by normal DNS, and SplitDNS (for PTR lookups etc.)
+  dns_init();
+  open();
+
+  return 0;
+}
+
+void
+DNSProcessor::open(sockaddr const* target, int aoptions)
+{
+  DNSHandler *h = new DNSHandler;
+
+  h->options = aoptions;
+  h->mutex = thread->mutex;
+  h->m_res = &l_res;
+  ats_ip_copy(&h->local_ipv4.sa, &local_ipv4.sa);
+  ats_ip_copy(&h->local_ipv6.sa, &local_ipv6.sa);
+
+  if (target)
+    ats_ip_copy(&h->ip, target);
+  else
+    ats_ip_invalidate(&h->ip); // marked to use default.
+
+  if (!dns_handler_initialized)
+    handler = h;
+
+  SET_CONTINUATION_HANDLER(h, &DNSHandler::startEvent);
+  thread->schedule_imm(h);
+}
+
+//
+// Initialization
+//
+void
+DNSProcessor::dns_init()
+{
+  gethostname(try_server_names[0], 255);
+  Debug("dns", "localhost=%s\n", try_server_names[0]);
+  Debug("dns", "Round-robin nameservers = %d\n", dns_ns_rr);
+
+  IpEndpoint nameserver[MAX_NAMED];
+  size_t nserv = 0;
+
+  if (dns_ns_list) {
+    Debug("dns", "Nameserver list specified \"%s\"\n", dns_ns_list);
+    int i;
+    char *last;
+    char *ns_list = ats_strdup(dns_ns_list);
+    char *ns = (char *) strtok_r(ns_list, " ,;\t\r", &last);
+
+    for (i = 0, nserv = 0 ; (i < MAX_NAMED) && ns ; ++i) {
+      Debug("dns", "Nameserver list - parsing \"%s\"\n", ns);
+      bool err = false;
+      int prt = DOMAIN_SERVICE_PORT;
+      char* colon = 0; // where the port colon is.
+      // Check for IPv6 notation.
+      if ('[' == *ns) {
+        char* ndx = strchr(ns+1, ']');
+        if (ndx) {
+          if (':' == ndx[1]) colon = ndx+1;
+        } else {
+          err = true;
+          Warning("Unmatched '[' in address for nameserver '%s', discarding.", ns);
+        }
+      } else colon = strchr(ns, ':');
+
+      if (!err && colon) {
+        *colon = '\0';
+        // coverity[secure_coding]
+        if (sscanf(colon + 1, "%d%*s", &prt) != 1) {
+          Debug("dns", "Unable to parse port number '%s' for nameserver '%s', discardin.", colon + 1, ns);
+          Warning("Unable to parse port number '%s' for nameserver '%s', discarding.", colon + 1, ns);
+          err = true;
+        }
+      }
+
+      if (!err && 0 != ats_ip_pton(ns, &nameserver[nserv].sa)) {
+        Debug("dns", "Invalid IP address given for nameserver '%s', discarding", ns);
+        Warning("Invalid IP address given for nameserver '%s', discarding", ns);
+        err = true;
+      }
+
+      if (!err) {
+        ip_port_text_buffer buff;
+
+        ats_ip_port_cast(&nameserver[nserv].sa) = htons(prt);
+
+        Debug("dns", "Adding nameserver %s to nameserver list",
+          ats_ip_nptop(&nameserver[nserv].sa, buff, sizeof(buff))
+        );
+        ++nserv;
+      }
+
+      ns = (char *) strtok_r(NULL, " ,;\t\r", &last);
+    }
+    ats_free(ns_list);
+  }
+  // The default domain (4th param) and search list (5th param) will
+  // come from /etc/resolv.conf.
+  if (ink_res_init(&l_res, nameserver, nserv, NULL, NULL, dns_resolv_conf) < 0)
+    Warning("Failed to build DNS res records for the servers (%s).  Using resolv.conf.", dns_ns_list);
+
+  // Check for local forced bindings.
+
+  if (dns_local_ipv6) {
+    if (0 != ats_ip_pton(dns_local_ipv6, &local_ipv6)) {
+      ats_ip_invalidate(&local_ipv6);
+      Warning("Invalid IP address '%s' for dns.local_ipv6 value, discarding.", dns_local_ipv6);
+    } else if (!ats_is_ip6(&local_ipv6.sa)) {
+      ats_ip_invalidate(&local_ipv6);
+      Warning("IP address '%s' for dns.local_ipv6 value was not IPv6, discarding.", dns_local_ipv6);
+    }
+  }
+
+  if (dns_local_ipv4) {
+    if (0 != ats_ip_pton(dns_local_ipv4, &local_ipv4)) {
+      ats_ip_invalidate(&local_ipv4);
+      Warning("Invalid IP address '%s' for dns.local_ipv4 value, discarding.", dns_local_ipv4);
+    } else if (!ats_is_ip4(&local_ipv4.sa)) {
+      ats_ip_invalidate(&local_ipv4);
+      Warning("IP address '%s' for dns.local_ipv4 value was not IPv4, discarding.", dns_local_ipv4);
+    }
+  }
+}
+
+/**
+  Inter-OS portability for dn_expand.  dn_expand() expands the compressed
+  domain name comp_dn to a full domain name. Expanded names are converted
+  to upper case. msg is a pointer to the beginning of the message,
+  exp_dn is a pointer to a buffer of size length for the result. The
+  size of compressed name is returned or -1 if there was an error.
+
+*/
+inline int
+ink_dn_expand(const u_char *msg, const u_char *eom, const u_char *comp_dn, u_char *exp_dn, int length)
+{
+  return::dn_expand((unsigned char *) msg, (unsigned char *) eom, (unsigned char *) comp_dn, (char *) exp_dn, length);
+}
+
+DNSProcessor::DNSProcessor()
+  : thread(NULL), handler(NULL)
+{
+  ink_zero(l_res);
+  ink_zero(local_ipv6);
+  ink_zero(local_ipv4);
+}
+
+void
+DNSEntry::init(const char *x, int len, int qtype_arg, Continuation* acont,
+               DNSProcessor::Options const& opt)
+{
+  qtype = qtype_arg;
+  host_res_style = opt.host_res_style;
+  if (is_addr_query(qtype)) {
+      // adjust things based on family preference.
+      if (HOST_RES_IPV4 == host_res_style ||
+          HOST_RES_IPV4_ONLY == host_res_style) {
+          qtype = T_A;
+      } else if (HOST_RES_IPV6 == host_res_style ||
+                 HOST_RES_IPV6_ONLY == host_res_style) {
+          qtype = T_AAAA;
+      }
+  }
+  submit_time = ink_get_hrtime();
+  action = acont;
+  submit_thread = acont->mutex->thread_holding;
+
+#ifdef SPLIT_DNS
+  if (SplitDNSConfig::gsplit_dns_enabled) {
+    dnsH = opt.handler ? opt.handler : dnsProcessor.handler;
+  } else {
+    dnsH = dnsProcessor.handler;
+  }
+#else
+  dnsH = dnsProcessor.handler;
+#endif // SPLIT_DNS
+
+  dnsH->txn_lookup_timeout = opt.timeout;
+
+  mutex = dnsH->mutex;
+
+  if (is_addr_query(qtype) || qtype == T_SRV) {
+    if (len) {
+      len = len > (MAXDNAME - 1) ? (MAXDNAME - 1) : len;
+      memcpy(qname, x, len);
+      qname[len] = 0;
+      orig_qname_len = qname_len = len;
+    } else {
+      qname_len = ink_strlcpy(qname, x, MAXDNAME);
+      orig_qname_len = qname_len;
+    }
+  } else {                    //T_PTR
+    IpAddr const* ip = reinterpret_cast<IpAddr const*>(x);
+    if (ip->isIp6())
+      make_ipv6_ptr(&ip->_addr._ip6, qname);
+    else if (ip->isIp4())
+      make_ipv4_ptr(ip->_addr._ip4, qname);
+    else
+      ink_assert(!"T_PTR query to DNS must be IP address.");
+  }
+
+  SET_HANDLER((DNSEntryHandler) & DNSEntry::mainEvent);
+}
+
+/**
+  Open (and close) connections as necessary and also assures that the
+  epoll fd struct is properly updated.
+
+*/
+void
+DNSHandler::open_con(sockaddr const* target, bool failed, int icon)
+{
+  ip_port_text_buffer ip_text;
+  PollDescriptor *pd = get_PollDescriptor(dnsProcessor.thread);
+
+  if (!icon && target) {
+    ats_ip_copy(&ip, target);
+  } else if (!target) {
+    target = &ip.sa;
+  }
+
+  Debug("dns", "open_con: opening connection %s", ats_ip_nptop(target, ip_text, sizeof ip_text));
+
+  if (con[icon].fd != NO_FD) {  // Remove old FD from epoll fd
+    con[icon].eio.stop();
+    con[icon].close();
+  }
+
+  if (con[icon].connect(
+      target, DNSConnection::Options()
+        .setNonBlockingConnect(true)
+        .setNonBlockingIo(true)
+        .setUseTcp(false)
+        .setBindRandomPort(true)
+        .setLocalIpv6(&local_ipv6.sa)
+        .setLocalIpv4(&local_ipv4.sa)
+    ) < 0) {
+    Debug("dns", "opening connection %s FAILED for %d", ip_text, icon);
+    if (!failed) {
+      if (dns_ns_rr)
+        rr_failure(icon);
+      else
+        failover();
+    }
+    return;
+  } else {
+    ns_down[icon] = 0;
+    if (con[icon].eio.start(pd, &con[icon], EVENTIO_READ) < 0) {
+      Error("[iocore_dns] open_con: Failed to add %d server to epoll list\n", icon);
+    } else {
+      con[icon].num = icon;
+      Debug("dns", "opening connection %s SUCCEEDED for %d", ip_text, icon);
+    }
+  }
+}
+
+void
+DNSHandler::validate_ip() {
+  if (!ip.isValid()) {
+    // Invalid, switch to default.
+    // seems that res_init always sets m_res.nscount to at least 1!
+    if (!m_res->nscount || !ats_ip_copy(&ip.sa, &m_res->nsaddr_list[0].sa)) {
+      Warning("bad nameserver config, fallback to loopback");
+      ip.setToLoopback(AF_INET);
+    }
+  }
+}
+/**
+  Initial state of the DNSHandler. Can reinitialize the running DNS
+  handler to a new nameserver.
+
+*/
+int
+DNSHandler::startEvent(int /* event ATS_UNUSED */, Event *e)
+{
+  //
+  // If this is for the default server, get it
+  Debug("dns", "DNSHandler::startEvent: on thread %d\n", e->ethread->id);
+
+  this->validate_ip();
+
+  if (!dns_handler_initialized) {
+    //
+    // If we are THE handler, open connection and configure for
+    // periodic execution.
+    //
+    dns_handler_initialized = 1;
+    SET_HANDLER(&DNSHandler::mainEvent);
+    if (dns_ns_rr) {
+      int max_nscount = m_res->nscount;
+      if (max_nscount > MAX_NAMED)
+        max_nscount = MAX_NAMED;
+      n_con = 0;
+      for (int i = 0; i < max_nscount; i++) {
+        ip_port_text_buffer buff;
+        sockaddr *sa = &m_res->nsaddr_list[i].sa;
+        if (ats_is_ip(sa)) {
+          open_con(sa, false, n_con);
+          ++n_con;
+          Debug("dns_pas", "opened connection to %s, n_con = %d",
+            ats_ip_nptop(sa, buff, sizeof(buff)),
+            n_con
+          );
+        }
+      }
+      dns_ns_rr_init_down = 0;
+    } else {
+      open_con(0); // use current target address.
+      n_con = 1;
+    }
+    e->ethread->schedule_every(this, DNS_PERIOD);
+
+    return EVENT_CONT;
+  } else {
+    ink_assert(false);          // I.e. this should never really happen
+    return EVENT_DONE;
+  }
+}
+
+/**
+  Initial state of the DSNHandler. Can reinitialize the running DNS
+  hander to a new nameserver.
+*/
+int
+DNSHandler::startEvent_sdns(int /* event ATS_UNUSED */, Event *e)
+{
+  Debug("dns", "DNSHandler::startEvent_sdns: on thread %d\n", e->ethread->id);
+  this->validate_ip();
+
+  SET_HANDLER(&DNSHandler::mainEvent);
+  open_con(&ip.sa, false, n_con);
+  ++n_con;                      // TODO should n_con be zeroed?
+
+  e->schedule_every(DNS_PERIOD);
+  return EVENT_CONT;
+}
+
+static inline int
+_ink_res_mkquery(ink_res_state res, char *qname, int qtype, char *buffer)
+{
+  int r = ink_res_mkquery(res, QUERY, qname, C_IN, qtype,
+                          NULL, 0, NULL, (unsigned char *) buffer,
+                          MAX_DNS_PACKET_LEN);
+  return r;
+}
+
+void
+DNSHandler::recover()
+{
+  ip_text_buffer buff;
+  Warning("connection to DNS server %s restored", ats_ip_ntop(&ip.sa, buff, sizeof(buff)));
+  name_server = 0;
+  switch_named(name_server);
+}
+
+void
+DNSHandler::retry_named(int ndx, ink_hrtime t, bool reopen)
+{
+  if (reopen && ((t - last_primary_reopen) > DNS_PRIMARY_REOPEN_PERIOD)) {
+    Debug("dns", "retry_named: reopening DNS connection for index %d", ndx);
+    last_primary_reopen = t;
+    con[ndx].close();
+    open_con(&m_res->nsaddr_list[ndx].sa, true, ndx);
+  }
+
+  char buffer[MAX_DNS_PACKET_LEN];
+  Debug("dns", "trying to resolve '%s' from DNS connection, ndx %d", try_server_names[try_servers], ndx);
+  int r = _ink_res_mkquery(m_res, try_server_names[try_servers], T_A, buffer);
+  try_servers = (try_servers + 1) % countof(try_server_names);
+  ink_assert(r >= 0);
+  if (r >= 0) {                 // looking for a bounce
+    int res = socketManager.send(con[ndx].fd, buffer, r, 0);
+    Debug("dns", "ping result = %d", res);
+  }
+}
+
+void
+DNSHandler::try_primary_named(bool reopen)
+{
+  ink_hrtime t = ink_get_hrtime();
+  if (reopen && ((t - last_primary_reopen) > DNS_PRIMARY_REOPEN_PERIOD)) {
+    Debug("dns", "try_primary_named: reopening primary DNS connection");
+    last_primary_reopen = t;
+    open_con(&ip.sa, true, 0);
+  }
+  if ((t - last_primary_retry) > DNS_PRIMARY_RETRY_PERIOD) {
+    char buffer[MAX_DNS_PACKET_LEN];
+
+    last_primary_retry = t;
+    Debug("dns", "trying to resolve '%s' from primary DNS connection", try_server_names[try_servers]);
+    int r = _ink_res_mkquery(m_res, try_server_names[try_servers], T_A, buffer);
+    // if try_server_names[] is not full, round-robin within the
+    // filled entries.
+    if (local_num_entries < DEFAULT_NUM_TRY_SERVER)
+      try_servers = (try_servers + 1) % local_num_entries;
+    else
+      try_servers = (try_servers + 1) % countof(try_server_names);
+    ink_assert(r >= 0);
+    if (r >= 0) {               // looking for a bounce
+      int res = socketManager.send(con[0].fd, buffer, r, 0);
+      Debug("dns", "ping result = %d", res);
+    }
+  }
+}
+
+
+void
+DNSHandler::switch_named(int ndx)
+{
+  for (DNSEntry *e = entries.head; e; e = (DNSEntry *) e->link.next) {
+    e->written_flag = 0;
+    if (e->retries < dns_retries)
+      ++(e->retries);           // give them another chance
+  }
+  in_flight = 0;
+  received_one(ndx);            // reset failover counters
+}
+
+/** Fail over to another name server. */
+void
+DNSHandler::failover()
+{
+  Debug("dns", "failover: initiating failover attempt, current name_server=%d", name_server);
+  // no hope, if we have only one server
+  if (m_res->nscount > 1) {
+    ip_text_buffer buff1, buff2;
+    int max_nscount = m_res->nscount;
+
+    if (max_nscount > MAX_NAMED)
+      max_nscount = MAX_NAMED;
+    sockaddr const* old_addr = &m_res->nsaddr_list[name_server].sa;
+    name_server = (name_server + 1) % max_nscount;
+    Debug("dns", "failover: failing over to name_server=%d", name_server);
+
+    IpEndpoint target;
+    ats_ip_copy(&target.sa, &m_res->nsaddr_list[name_server].sa);
+
+    Warning("failover: connection to DNS server %s lost, move to %s",
+      ats_ip_ntop(old_addr, buff1, sizeof(buff1)),
+      ats_ip_ntop(&target.sa, buff2, sizeof(buff2))
+    );
+
+    if (!target.isValid()) target.setToLoopback(AF_INET);
+
+    open_con(&target.sa, true, name_server);
+    if (n_con <= name_server)
+      n_con = name_server + 1;
+    switch_named(name_server);
+  } else {
+    ip_text_buffer buff;
+    Warning("failover: connection to DNS server %s lost, retrying",
+      ats_ip_ntop(&ip.sa, buff, sizeof(buff))
+    );
+  }
+}
+
+/** Mark one of the nameservers as down. */
+void
+DNSHandler::rr_failure(int ndx)
+{
+  // no hope, if we have only one server
+  if (!ns_down[ndx]) {
+    ip_text_buffer buff;
+    // mark this nameserver as down
+    Debug("dns", "rr_failure: Marking nameserver %d as down", ndx);
+    ns_down[ndx] = 1;
+    Warning("connection to DNS server %s lost, marking as down",
+      ats_ip_ntop(&m_res->nsaddr_list[ndx].sa, buff, sizeof(buff))
+    );
+  }
+
+  int nscount = m_res->nscount;
+  if (nscount > MAX_NAMED)
+    nscount = MAX_NAMED;
+
+  // See if all nameservers are down
+  int all_down = 1;
+
+  for (int i = 0; i < nscount && all_down; i++) {
+    Debug("dns", "nsdown[%d]=%d", i, ns_down[i]);
+    if (!ns_down[i]) {
+      all_down = 0;
+    }
+  }
+
+  if (all_down && !dns_ns_rr_init_down) {
+    Warning("connection to all DNS servers lost, retrying");
+    // actual retries will be done in retry_named called from mainEvent
+    // mark any outstanding requests as not sent for later retry
+    for (DNSEntry *e = entries.head; e; e = (DNSEntry *) e->link.next) {
+      e->written_flag = 0;
+      if (e->retries < dns_retries)
+        ++(e->retries);         // give them another chance
+      --in_flight;
+      DNS_DECREMENT_DYN_STAT(dns_in_flight_stat);
+    }
+  } else {
+    // move outstanding requests that were sent to this nameserver to another
+    for (DNSEntry *e = entries.head; e; e = (DNSEntry *) e->link.next) {
+      if (e->which_ns == ndx) {
+        e->written_flag = 0;
+        if (e->retries < dns_retries)
+          ++(e->retries);       // give them another chance
+        --in_flight;
+        DNS_DECREMENT_DYN_STAT(dns_in_flight_stat);
+      }
+    }
+  }
+}
+
+static inline unsigned int get_rcode(char* buff) {
+  return reinterpret_cast<HEADER*>(buff)->rcode;
+}
+
+static inline unsigned int get_rcode(HostEnt* ent) {
+  return get_rcode(reinterpret_cast<char*>(ent));
+}
+
+static bool
+good_rcode(char *buff) {
+  unsigned int r = get_rcode(buff);
+  return NOERROR == r || NXDOMAIN == r;
+}
+
+
+void
+DNSHandler::recv_dns(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  DNSConnection *dnsc = NULL;
+  ip_text_buffer ipbuff1, ipbuff2;
+
+  while ((dnsc = (DNSConnection *) triggered.dequeue())) {
+    while (1) {
+      IpEndpoint from_ip;
+      socklen_t from_length = sizeof(from_ip);
+
+      if (!hostent_cache)
+        hostent_cache = dnsBufAllocator.alloc();
+      HostEnt *buf = hostent_cache;
+
+      int res = socketManager.recvfrom(dnsc->fd, buf->buf, MAX_DNS_PACKET_LEN, 0, &from_ip.sa, &from_length);
+
+      if (res == -EAGAIN)
+        break;
+      if (res <= 0) {
+        Debug("dns", "named error: %d", res);
+        if (dns_ns_rr)
+          rr_failure(dnsc->num);
+        else if (dnsc->num == name_server)
+          failover();
+        break;
+      }
+
+      // verify that this response came from the correct server
+      if (!ats_ip_addr_eq(&dnsc->ip.sa, &from_ip.sa)) {
+        Warning("unexpected DNS response from %s (expected %s)",
+          ats_ip_ntop(&from_ip.sa, ipbuff1, sizeof ipbuff1),
+          ats_ip_ntop(&dnsc->ip.sa, ipbuff2, sizeof ipbuff2)
+        );
+        continue;
+      }
+      hostent_cache = 0;
+      buf->packet_size = res;
+      Debug("dns", "received packet size = %d", res);
+      if (dns_ns_rr) {
+        Debug("dns", "round-robin: nameserver %d DNS response code = %d", dnsc->num, get_rcode(buf));
+        if (good_rcode(buf->buf)) {
+          received_one(dnsc->num);
+          if (ns_down[dnsc->num]) {
+            Warning("connection to DNS server %s restored",
+              ats_ip_ntop(&m_res->nsaddr_list[dnsc->num].sa, ipbuff1, sizeof ipbuff1)
+            );
+            ns_down[dnsc->num] = 0;
+          }
+        }
+      } else {
+        if (!dnsc->num) {
+          Debug("dns", "primary DNS response code = %d", get_rcode(buf));
+          if (good_rcode(buf->buf)) {
+            if (name_server)
+              recover();
+            else
+              received_one(name_server);
+          }
+        }
+      }
+      Ptr<HostEnt> protect_hostent = make_ptr(buf);
+      if (dns_process(this, buf, res)) {
+        if (dnsc->num == name_server)
+          received_one(name_server);
+      }
+    }
+  }
+}
+
+/** Main event for the DNSHandler. Attempt to read from and write to named. */
+int
+DNSHandler::mainEvent(int event, Event *e)
+{
+  recv_dns(event, e);
+  if (dns_ns_rr) {
+    ink_hrtime t = ink_get_hrtime();
+    if (t - last_primary_retry > DNS_PRIMARY_RETRY_PERIOD) {
+      for (int i = 0; i < n_con; i++) {
+        if (ns_down[i]) {
+          Debug("dns", "mainEvent: nameserver = %d is down", i);
+          retry_named(i, t, true);
+        }
+      }
+      last_primary_retry = t;
+    }
+    for (int i = 0; i < n_con; i++) {
+      if (!ns_down[i] && failover_soon(i)) {
+        Debug("dns", "mainEvent: nameserver = %d failover soon", name_server);
+        if (failover_now(i))
+          rr_failure(i);
+        else {
+          Debug("dns", "mainEvent: nameserver = %d no failover now - retrying", i);
+          retry_named(i, t, false);
+          ++failover_soon_number[i];
+        }
+      }
+    }
+  } else {
+    if (failover_soon(name_server)) {
+      Debug("dns", "mainEvent: will failover soon");
+      if (failover_now(name_server)) {
+        Debug("dns", "mainEvent: failing over now to another nameserver");
+        failover();
+      } else {
+        try_primary_named(false);
+        ++failover_soon_number[name_server];
+      }
+    } else if (name_server)     // not on the primary named
+      try_primary_named(true);
+  }
+
+  if (entries.head)
+    write_dns(this);
+
+  return EVENT_CONT;
+}
+
+/** Find a DNSEntry by id. */
+inline static DNSEntry *
+get_dns(DNSHandler *h, uint16_t id)
+{
+  for (DNSEntry *e = h->entries.head; e; e = (DNSEntry *) e->link.next) {
+    if (e->once_written_flag) {
+      for (int j = 0; j < MAX_DNS_RETRIES; j++) {
+        if (e->id[j] == id) {
+          return e;
+        } else if (e->id[j] < 0) {
+          goto Lnext;
+        }
+      }
+    }
+  Lnext:;
+  }
+  return NULL;
+}
+
+/** Find a DNSEntry by query name and type. */
+inline static DNSEntry *
+get_entry(DNSHandler *h, char *qname, int qtype)
+{
+  for (DNSEntry *e = h->entries.head; e; e = (DNSEntry *) e->link.next) {
+    if (e->qtype == qtype) {
+      if (is_addr_query(qtype)) {
+        if (!strcmp(qname, e->qname))
+          return e;
+      } else if (0 == memcmp(qname, e->qname, e->qname_len))
+        return e;
+    }
+  }
+  return NULL;
+}
+
+/** Write up to dns_max_dns_in_flight entries. */
+static void
+write_dns(DNSHandler *h)
+{
+  ProxyMutex *mutex = h->mutex;
+  DNS_INCREMENT_DYN_STAT(dns_total_lookups_stat);
+  int max_nscount = h->m_res->nscount;
+  if (max_nscount > MAX_NAMED)
+    max_nscount = MAX_NAMED;
+
+  if (h->in_write_dns)
+    return;
+  h->in_write_dns = true;
+  // Debug("dns", "in_flight: %d, dns_max_dns_in_flight: %d", h->in_flight, dns_max_dns_in_flight);
+  if (h->in_flight < dns_max_dns_in_flight) {
+    DNSEntry *e = h->entries.head;
+    while (e) {
+      DNSEntry *n = (DNSEntry *) e->link.next;
+      if (!e->written_flag) {
+        if (dns_ns_rr) {
+          int ns_start = h->name_server;
+          do {
+            h->name_server = (h->name_server + 1) % max_nscount;
+          } while (h->ns_down[h->name_server] && h->name_server != ns_start);
+        }
+        if (!write_dns_event(h, e))
+          break;
+      }
+      if (h->in_flight >= dns_max_dns_in_flight)
+        break;
+      e = n;
+    }
+  }
+  h->in_write_dns = false;
+}
+
+uint16_t
+DNSHandler::get_query_id()
+{
+  uint16_t q1, q2;
+  q2 = q1 = (uint16_t)(generator.random() & 0xFFFF);
+  if (query_id_in_use(q2)) {
+    uint16_t i = q2>>6;
+    while (qid_in_flight[i] == INTU64_MAX) {
+      if (++i ==  sizeof(qid_in_flight)/sizeof(uint64_t)) {
+        i = 0;
+      }
+      if (i == q1>>6) {
+        Error("[iocore_dns] get_query_id: Exhausted all DNS query ids");
+        return q1;
+      }
+    }
+    i <<= 6;
+    q2 &= 0x3F;
+    while (query_id_in_use(i+q2)) {
+      ++q2;
+      q2 &= 0x3F;
+      if (q2 == (q1 & 0x3F)) {
+        Error("[iocore_dns] get_query_id: Exhausted all DNS query ids");
+        return q1;
+      }
+    }
+    q2 += i;
+  }
+
+  set_query_id_in_use(q2);
+  return q2;
+}
+
+/**
+  Construct and Write the request for a single entry (using send(3N)).
+
+  @return true = keep going, false = give up for now.
+
+*/
+static bool
+write_dns_event(DNSHandler *h, DNSEntry *e)
+{
+  ProxyMutex *mutex = h->mutex;
+  union {
+    HEADER _h;
+    char _b[MAX_DNS_PACKET_LEN];
+  } blob;
+  int r = 0;
+
+  if ((r = _ink_res_mkquery(h->m_res, e->qname, e->qtype, blob._b)) <= 0) {
+    Debug("dns", "cannot build query: %s", e->qname);
+    dns_result(h, e, NULL, false);
+    return true;
+  }
+
+  uint16_t i = h->get_query_id();
+  blob._h.id = htons(i);
+  if (e->id[dns_retries - e->retries] >= 0) {
+    //clear previous id in case named was switched or domain was expanded
+    h->release_query_id(e->id[dns_retries - e->retries]);
+  }
+  e->id[dns_retries - e->retries] = i;
+  Debug("dns", "send query (qtype=%d) for %s to fd %d", e->qtype, e->qname, h->con[h->name_server].fd);
+
+  int s = socketManager.send(h->con[h->name_server].fd, blob._b, r, 0);
+  if (s != r) {
+    Debug("dns", "send() failed: qname = %s, %d != %d, nameserver= %d", e->qname, s, r, h->name_server);
+    // changed if condition from 'r < 0' to 's < 0' - 8/2001 pas
+    if (s < 0) {
+      if (dns_ns_rr)
+        h->rr_failure(h->name_server);
+      else
+        h->failover();
+    }
+    return false;
+  }
+
+  e->written_flag = true;
+  e->which_ns = h->name_server;
+  e->once_written_flag = true;
+  ++h->in_flight;
+  DNS_INCREMENT_DYN_STAT(dns_in_flight_stat);
+
+  e->send_time = ink_get_hrtime();
+
+  if (e->timeout)
+    e->timeout->cancel();
+
+  if (h->txn_lookup_timeout) {
+    e->timeout = h->mutex->thread_holding->schedule_in(e, HRTIME_MSECONDS(h->txn_lookup_timeout));      //this is in msec
+  } else {
+    e->timeout = h->mutex->thread_holding->schedule_in(e, HRTIME_SECONDS(dns_timeout));
+  }
+
+  Debug("dns", "sent qname = %s, id = %u, nameserver = %d", e->qname, e->id[dns_retries - e->retries], h->name_server);
+  h->sent_one();
+  return true;
+}
+
+
+int
+DNSEntry::delayEvent(int event, Event *e)
+{
+  (void) event;
+  if (dnsProcessor.handler) {
+    SET_HANDLER((DNSEntryHandler) & DNSEntry::mainEvent);
+    return handleEvent(EVENT_IMMEDIATE, e);
+  }
+  e->schedule_in(DNS_DELAY_PERIOD);
+  return EVENT_CONT;
+}
+
+/** Handle timeout events. */
+int
+DNSEntry::mainEvent(int event, Event *e)
+{
+  switch (event) {
+  default:
+    ink_assert(!"bad case");
+    return EVENT_DONE;
+  case EVENT_IMMEDIATE:{
+      if (!dnsH)
+        dnsH = dnsProcessor.handler;
+      if (!dnsH) {
+        Debug("dns", "handler not found, retrying...");
+        SET_HANDLER((DNSEntryHandler) & DNSEntry::delayEvent);
+        return handleEvent(event, e);
+      }
+
+      // trailing '.' indicates no domain expansion
+      if (dns_search && ('.' != qname[orig_qname_len - 1])) {
+        domains = dnsH->m_res->dnsrch;
+        // start domain expansion straight away
+        // if lookup name has no '.'
+        if (domains && !strnchr(qname, '.', MAXDNAME)) {
+          qname[orig_qname_len] = '.';
+          qname_len = orig_qname_len + 1 + ink_strlcpy(qname + orig_qname_len + 1, *domains,
+                                                       MAXDNAME - (orig_qname_len + 1));
+          ++domains;
+        }
+      } else {
+        domains = NULL;
+      }
+      Debug("dns", "enqueing query %s", qname);
+      DNSEntry *dup = get_entry(dnsH, qname, qtype);
+      if (dup) {
+        Debug("dns", "collapsing NS request");
+        dup->dups.enqueue(this);
+      } else {
+        Debug("dns", "adding first to collapsing queue");
+        dnsH->entries.enqueue(this);
+        write_dns(dnsH);
+      }
+      return EVENT_DONE;
+    }
+  case EVENT_INTERVAL:
+    Debug("dns", "timeout for query %s", qname);
+    if (dnsH->txn_lookup_timeout) {
+      timeout = NULL;
+      dns_result(dnsH, this, result_ent, false);        //do not retry -- we are over TXN timeout on DNS alone!
+      return EVENT_DONE;
+    }
+    if (written_flag) {
+      Debug("dns", "marking %s as not-written", qname);
+      written_flag = false;
+      --(dnsH->in_flight);
+      DNS_DECREMENT_DYN_STAT(dns_in_flight_stat);
+    }
+    timeout = NULL;
+    dns_result(dnsH, this, result_ent, true);
+    return EVENT_DONE;
+  }
+}
+
+Action *
+DNSProcessor::getby(const char *x, int len, int type, Continuation *cont, Options const& opt)
+{
+  Debug("dns", "received query %s type = %d, timeout = %d", x, type, opt.timeout);
+  if (type == T_SRV) {
+    Debug("dns_srv", "DNSProcessor::getby attempting an SRV lookup for %s, timeout = %d", x, opt.timeout);
+  }
+  DNSEntry *e = dnsEntryAllocator.alloc();
+  e->retries = dns_retries;
+  e->init(x, len, type, cont, opt);
+  MUTEX_TRY_LOCK(lock, e->mutex, this_ethread());
+  if (!lock)
+    thread->schedule_imm(e);
+  else
+    e->handleEvent(EVENT_IMMEDIATE, 0);
+  return &e->action;
+}
+
+/**
+  We have a result for an entry, return it to the user or retry if it
+  is a retry-able and we have retries left.
+*/
+static void
+dns_result(DNSHandler *h, DNSEntry *e, HostEnt *ent, bool retry) {
+  ProxyMutex *mutex = h->mutex;
+  bool cancelled = (e->action.cancelled ? true : false);
+
+  if (!ent && !cancelled) {
+    // try to retry operation
+    if (retry && e->retries) {
+      Debug("dns", "doing retry for %s", e->qname);
+
+      DNS_INCREMENT_DYN_STAT(dns_retries_stat);
+
+      --(e->retries);
+      write_dns(h);
+      return;
+    } else if (e->domains && *e->domains) {
+      do {
+        Debug("dns", "domain extending, last tried '%s', original '%.*s'", e->qname, e->orig_qname_len, e->qname);
+
+        // Make sure the next try fits
+        if (e->orig_qname_len + strlen(*e->domains) + 2 > MAXDNAME) {
+          Debug("dns", "domain too large %.*s + %s", e->orig_qname_len, e->qname, *e->domains);
+        } else {
+          e->qname[e->orig_qname_len] = '.';
+          e->qname_len = e->orig_qname_len + 1 + ink_strlcpy(e->qname + e->orig_qname_len + 1, *e->domains,
+                                                             MAXDNAME - (e->orig_qname_len + 1));
+          ++(e->domains);
+          e->retries = dns_retries;
+          Debug("dns", "new name = %s retries = %d", e->qname, e->retries);
+          write_dns(h);
+
+          return;
+        }
+
+        // Try another one
+        ++(e->domains);
+      } while (*e->domains);
+    } else {
+      e->qname[e->qname_len] = 0;
+      if (!strchr(e->qname, '.') && !e->last) {
+        e->last = true;
+        write_dns(h);
+        return;
+      }
+    }
+    if (retry) {
+      DNS_INCREMENT_DYN_STAT(dns_max_retries_exceeded_stat);
+    }
+  }
+  if (ent == BAD_DNS_RESULT)
+    ent = NULL;
+  if (!cancelled) {
+    if (!ent) {
+      DNS_SUM_DYN_STAT(dns_fail_time_stat, ink_get_hrtime() - e->submit_time);
+    } else {
+      DNS_SUM_DYN_STAT(dns_success_time_stat, ink_get_hrtime() - e->submit_time);
+    }
+  }
+  h->entries.remove(e);
+
+  if (is_debug_tag_set("dns")) {
+    if (is_addr_query(e->qtype)) {
+      ip_text_buffer buff;
+      char const* ptr = "<none>";
+      char const* result = "FAIL";
+      if (ent) {
+        result = "SUCCESS";
+        ptr = inet_ntop(e->qtype == T_AAAA ? AF_INET6 : AF_INET, ent->ent.h_addr_list[0], buff, sizeof(buff));
+      }
+      Debug("dns", "%s result for %s = %s retry %d", result, e->qname, ptr, retry);
+    } else {
+      if (ent) {
+        Debug("dns", "SUCCESS result for %s = %s af=%d retry %d", e->qname, ent->ent.h_name, ent->ent.h_addrtype, retry);
+      } else {
+        Debug("dns", "FAIL result for %s = <not found> retry %d", e->qname, retry);
+      }
+    }
+  }
+
+  if (ent) {
+    DNS_INCREMENT_DYN_STAT(dns_lookup_success_stat);
+  } else {
+    DNS_INCREMENT_DYN_STAT(dns_lookup_fail_stat);
+  }
+
+  DNSEntry *dup = NULL;
+  while ((dup = e->dups.dequeue())) {
+    if (dup->post(h, ent)) {
+      e->dups.enqueue(dup);
+      goto Lretry;
+    }
+  }
+
+  if (e->timeout) {
+    e->timeout->cancel(e);
+    e->timeout = NULL;
+  }
+  e->result_ent = ent;
+
+  if (h->mutex->thread_holding == e->submit_thread) {
+    MUTEX_TRY_LOCK(lock, e->action.mutex, h->mutex->thread_holding);
+    if (!lock) {
+      Debug("dns", "failed lock for result %s", e->qname);
+      goto Lretry;
+    }
+    for (int i = 0; i < MAX_DNS_RETRIES; i++) {
+      if (e->id[i] < 0)
+        break;
+      h->release_query_id(e->id[i]);
+    }
+    e->postEvent(0, 0);
+  } else {
+    for (int i = 0; i < MAX_DNS_RETRIES; i++) {
+      if (e->id[i] < 0)
+        break;
+      h->release_query_id(e->id[i]);
+    }
+    e->mutex = e->action.mutex;
+    SET_CONTINUATION_HANDLER(e, &DNSEntry::postEvent);
+    e->submit_thread->schedule_imm_signal(e);
+  }
+  return;
+Lretry:
+  e->result_ent = ent;
+  e->retries = 0;
+  if (e->timeout)
+    e->timeout->cancel();
+  e->timeout = h->mutex->thread_holding->schedule_in(e, DNS_PERIOD);
+}
+
+int
+DNSEntry::post(DNSHandler *h, HostEnt *ent)
+{
+  if (timeout) {
+    timeout->cancel(this);
+    timeout = NULL;
+  }
+  result_ent = ent;
+  if (h->mutex->thread_holding == submit_thread) {
+    MUTEX_TRY_LOCK(lock, action.mutex, h->mutex->thread_holding);
+    if (!lock) {
+      Debug("dns", "failed lock for result %s", qname);
+      return 1;
+    }
+    postEvent(0, 0);
+  } else {
+    mutex = action.mutex;
+    SET_HANDLER(&DNSEntry::postEvent);
+    submit_thread->schedule_imm_signal(this);
+  }
+  return 0;
+}
+
+int
+DNSEntry::postEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (!action.cancelled) {
+    Debug("dns", "called back continuation for %s", qname);
+    action.continuation->handleEvent(DNS_EVENT_LOOKUP, result_ent);
+  }
+  result_ent = NULL;
+  action.mutex = NULL;
+  mutex = NULL;
+  dnsEntryAllocator.free(this);
+  return EVENT_DONE;
+}
+
+/** Decode the reply from "named". */
+static bool
+dns_process(DNSHandler *handler, HostEnt *buf, int len)
+{
+  ProxyMutex *mutex = handler->mutex;
+  HEADER *h = (HEADER *) (buf->buf);
+  DNSEntry *e = get_dns(handler, (uint16_t) ntohs(h->id));
+  bool retry = false;
+  bool server_ok = true;
+  uint32_t temp_ttl = 0;
+
+  //
+  // Do we have an entry for this id?
+  //
+  if (!e || !e->written_flag) {
+    Debug("dns", "unknown DNS id = %u", (uint16_t) ntohs(h->id));
+    return false;               // cannot count this as a success
+  }
+  //
+  // It is no longer in flight
+  //
+  e->written_flag = false;
+  --(handler->in_flight);
+  DNS_DECREMENT_DYN_STAT(dns_in_flight_stat);
+
+  DNS_SUM_DYN_STAT(dns_response_time_stat, ink_get_hrtime() - e->send_time);
+
+  if (h->rcode != NOERROR || !h->ancount) {
+    Debug("dns", "received rcode = %d", h->rcode);
+    switch (h->rcode) {
+    default:
+      Warning("Unknown DNS error %d for [%s]", h->rcode, e->qname);
+      retry = true;
+      server_ok = false;        // could be server problems
+      goto Lerror;
+    case SERVFAIL:             // recoverable error
+      retry = true;
+    case FORMERR:              // unrecoverable errors
+    case REFUSED:
+    case NOTIMP:
+      Debug("dns", "DNS error %d for [%s]", h->rcode, e->qname);
+      server_ok = false;        // could be server problems
+      goto Lerror;
+    case NOERROR:
+    case NXDOMAIN:
+    case 6:                    // YXDOMAIN
+    case 7:                    // YXRRSET
+    case 8:                    // NOTAUTH
+    case 9:                    // NOTAUTH
+    case 10:                   // NOTZONE
+      Debug("dns", "DNS error %d for [%s]", h->rcode, e->qname);
+      goto Lerror;
+    }
+  } else {
+
+    //
+    // Initialize local data
+    //
+    //    struct in_addr host_addr;            unused
+    u_char tbuf[MAXDNAME + 1];
+    buf->ent.h_name = NULL;
+
+    int ancount = ntohs(h->ancount);
+    unsigned char *bp = buf->hostbuf;
+    int buflen = sizeof(buf->hostbuf);
+    u_char *cp = ((u_char *) h) + HFIXEDSZ;
+    u_char *eom = (u_char *) h + len;
+    int n;
+    ink_assert(buf->srv_hosts.srv_host_count == 0 && buf->srv_hosts.srv_hosts_length == 0);
+    buf->srv_hosts.srv_host_count = 0;
+    buf->srv_hosts.srv_hosts_length = 0;
+    unsigned& num_srv = buf->srv_hosts.srv_host_count;
+    int rname_len = -1;
+
+    //
+    // Expand name
+    //
+    if ((n = ink_dn_expand((u_char *) h, eom, cp, bp, buflen)) < 0)
+      goto Lerror;
+
+    // Should we validate the query name?
+    if (dns_validate_qname) {
+      int qlen = e->qname_len;
+      int rlen = strlen((char *)bp);
+
+      rname_len = rlen; // Save for later use
+      if ((qlen > 0) && ('.' == e->qname[qlen-1]))
+        --qlen;
+      if ((rlen > 0) && ('.' == bp[rlen-1]))
+        --rlen;
+      // TODO: At some point, we might want to care about the case here, and use an algorithm
+      // to randomly pick upper case characters in the query, and validate the response with
+      // case sensitivity.
+      if ((qlen != rlen) || (strncasecmp(e->qname, (const char*)bp, qlen) != 0)) {
+        // Bad mojo, forged?
+        Warning("received DNS response with query name of '%s', but response query name is '%s'", e->qname, bp);
+        goto Lerror;
+      } else {
+        Debug("dns", "query name validated properly for %s", e->qname);
+      }
+    }
+
+    cp += n + QFIXEDSZ;
+    if (is_addr_query(e->qtype)) {
+      if (-1 == rname_len)
+        n = strlen((char *)bp) + 1;
+      else
+        n = rname_len + 1;
+      buf->ent.h_name = (char *) bp;
+      bp += n;
+      buflen -= n;
+    }
+    //
+    // Configure HostEnt data structure
+    //
+    u_char **ap = buf->host_aliases;
+    buf->ent.h_aliases = (char **) buf->host_aliases;
+    u_char **hap = (u_char **) buf->h_addr_ptrs;
+    *hap = NULL;
+    buf->ent.h_addr_list = (char **) buf->h_addr_ptrs;
+
+    //
+    // INKqa10938: For customer (i.e. USPS) with closed environment, need to
+    // build up try_server_names[] with names already successfully resolved.
+    // try_server_names[] gets filled up with every success dns response.
+    // Once it's full, a new entry get inputted into try_server_names round-
+    // robin style every 50 success dns response.
+
+    // TODO: Why do we do strlen(e->qname) ? That should be available in
+    // e->qname_len, no ?
+    if (local_num_entries >= DEFAULT_NUM_TRY_SERVER) {
+      if ((attempt_num_entries % 50) == 0) {
+        try_servers = (try_servers + 1) % countof(try_server_names);
+        ink_strlcpy(try_server_names[try_servers], e->qname, MAXDNAME);
+        memset(&try_server_names[try_servers][strlen(e->qname)], 0, 1);
+        attempt_num_entries = 0;
+      }
+      ++attempt_num_entries;
+    } else {
+      // fill up try_server_names for try_primary_named
+      try_servers = local_num_entries++;
+      ink_strlcpy(try_server_names[try_servers], e->qname, MAXDNAME);
+      memset(&try_server_names[try_servers][strlen(e->qname)], 0, 1);
+    }
+
+    /* added for SRV support [ebalsa]
+       this skips the query section (qdcount)
+     */
+    unsigned char *here = (unsigned char *) buf->buf + HFIXEDSZ;
+    if (e->qtype == T_SRV) {
+      for (int ctr = ntohs(h->qdcount); ctr > 0; ctr--) {
+        int strlen = dn_skipname(here, eom);
+        here += strlen + QFIXEDSZ;
+      }
+    }
+    //
+    // Decode each answer
+    //
+    int answer = false, error = false;
+
+    while (ancount-- > 0 && cp < eom && !error) {
+      n = ink_dn_expand((u_char *) h, eom, cp, bp, buflen);
+      if (n < 0) {
+        ++error;
+        break;
+      }
+      cp += n;
+      short int type;
+      NS_GET16(type, cp);
+      cp += NS_INT16SZ;  // NS_GET16(cls, cp);
+      NS_GET32(temp_ttl, cp); // NOTE: this is not a "long" but 32-bits (from nameser_compat.h)
+      if ((temp_ttl < buf->ttl) || (buf->ttl == 0))
+        buf->ttl = temp_ttl;
+      NS_GET16(n, cp);
+
+      //
+      // Decode cname
+      //
+      if (is_addr_query(e->qtype) && type == T_CNAME) {
+        if (ap >= &buf->host_aliases[DNS_MAX_ALIASES - 1])
+          continue;
+        n = ink_dn_expand((u_char *) h, eom, cp, tbuf, sizeof(tbuf));
+        if (n < 0) {
+          ++error;
+          break;
+        }
+        cp += n;
+        *ap++ = (unsigned char *) bp;
+        n = strlen((char *) bp) + 1;
+        bp += n;
+        buflen -= n;
+        n = strlen((char *) tbuf) + 1;
+        if (n > buflen) {
+          ++error;
+          break;
+        }
+        ink_strlcpy((char *) bp, (char *) tbuf, buflen);
+        bp += n;
+        buflen -= n;
+        Debug("dns", "received cname = %s", tbuf);
+        continue;
+      }
+      if (e->qtype != type) {
+        ++error;
+        break;
+      }
+      //
+      // Decode names
+      //
+      if (type == T_PTR) {
+        n = ink_dn_expand((u_char *) h, eom, cp, bp, buflen);
+        if (n < 0) {
+          ++error;
+          break;
+        }
+        cp += n;
+        if (!answer) {
+          buf->ent.h_name = (char *) bp;
+          Debug("dns", "received PTR name = %s", bp);
+          n = strlen((char *) bp) + 1;
+          bp += n;
+          buflen -= n;
+        } else if (ap < &buf->host_aliases[DNS_MAX_ALIASES - 1]) {
+          *ap++ = bp;
+          Debug("dns", "received PTR alias = %s", bp);
+          n = strlen((char *) bp) + 1;
+          bp += n;
+          buflen -= n;
+        }
+      } else if (type == T_SRV) {
+        if (num_srv >= HOST_DB_MAX_ROUND_ROBIN_INFO)
+          break;
+        cp = here;              /* hack */
+        int strlen = dn_skipname(cp, eom);
+        cp += strlen;
+        const unsigned char *srv_off = cp;
+        cp += SRV_FIXEDSZ;
+        cp += dn_skipname(cp, eom);
+        here = cp;              /* hack */
+        SRV *srv = &buf->srv_hosts.hosts[num_srv];
+        int r = ink_ns_name_ntop(srv_off + SRV_SERVER, srv->host, MAXDNAME);
+        if (r <= 0) {
+          /* FIXME: is this really an error? or just a continue; */
+          ++error;
+          goto Lerror;
+        }
+        Debug("dns_srv", "Discovered SRV record [from NS lookup] with cost:%d weight:%d port:%d with host:%s",
+            ink_get16(srv_off + SRV_COST),
+            ink_get16(srv_off + SRV_WEIGHT), ink_get16(srv_off + SRV_PORT), srv->host);
+
+        srv->port = ink_get16(srv_off + SRV_PORT);
+        srv->priority = ink_get16(srv_off + SRV_COST);
+        srv->weight = ink_get16(srv_off + SRV_WEIGHT);
+        srv->host_len = r;
+        srv->host[r-1] = '\0';
+        srv->key = makeHostHash(srv->host);
+
+        if (srv->host[0] != '\0')
+          buf->srv_hosts.srv_hosts_length += r;
+        else
+          continue;
+        ++num_srv;
+      } else if (is_addr_query(type)) {
+        if (answer) {
+          if (n != buf->ent.h_length) {
+            cp += n;
+            continue;
+          }
+        } else {
+          int nn;
+          buf->ent.h_length = n;
+          buf->ent.h_addrtype = T_A == type ? AF_INET : AF_INET6;
+          buf->ent.h_name = (char *) bp;
+          nn = strlen((char *) bp) + 1;
+          Debug("dns", "received %s name = %s", QtypeName(type), bp);
+          bp += nn;
+          buflen -= nn;
+        }
+        // attempt to use the original buffer (if it is word aligned)
+        if (!(((uintptr_t) cp) % sizeof(unsigned int))) {
+          *hap++ = cp;
+          cp += n;
+        } else {
+          ip_text_buffer ip_string;
+          bp = (unsigned char *) align_pointer_forward(bp, sizeof(int));
+          if (bp + n >= buf->hostbuf + DNS_HOSTBUF_SIZE) {
+            ++error;
+            break;
+          }
+          memcpy((*hap++ = bp), cp, n);
+          Debug("dns", "received %s = %s", QtypeName(type),
+            inet_ntop(T_AAAA == type ? AF_INET6 : AF_INET, bp, ip_string, sizeof(ip_string))
+          );
+          bp += n;
+          cp += n;
+        }
+      } else
+        goto Lerror;
+      ++answer;
+    }
+    if (answer) {
+      *ap = NULL;
+      *hap = NULL;
+      //
+      // If the named didn't send us the name, insert the one
+      // the user gave us...
+      //
+      if (!buf->ent.h_name) {
+        Debug("dns", "inserting name = %s", e->qname);
+        ink_strlcpy((char *) bp, e->qname, sizeof(buf->hostbuf) - (bp - buf->hostbuf));
+        buf->ent.h_name = (char *) bp;
+      }
+      dns_result(handler, e, buf, retry);
+      return server_ok;
+    }
+  }
+Lerror:;
+  DNS_INCREMENT_DYN_STAT(dns_lookup_fail_stat);
+  dns_result(handler, e, NULL, retry);
+  return server_ok;
+}
+
+
+RecRawStatBlock *dns_rsb;
+
+void
+ink_dns_init(ModuleVersion v)
+{
+  static int init_called = 0;
+
+  Debug("dns", "ink_dns_init: called with init_called = %d", init_called);
+
+  ink_release_assert(!checkModuleVersion(v, HOSTDB_MODULE_VERSION));
+  if (init_called)
+    return;
+
+  init_called = 1;
+  // do one time stuff
+  // create a stat block for HostDBStats
+  dns_rsb = RecAllocateRawStatBlock((int) DNS_Stat_Count);
+
+  //
+  // Register statistics callbacks
+  //
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.total_dns_lookups",
+                     RECD_INT, RECP_PERSISTENT, (int) dns_total_lookups_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.lookup_avg_time",
+                     RECD_INT, RECP_PERSISTENT, (int) dns_response_time_stat, RecRawStatSyncHrTimeAvg);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.success_avg_time",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) dns_success_time_stat, RecRawStatSyncHrTimeAvg);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.lookup_successes",
+                     RECD_INT, RECP_PERSISTENT, (int) dns_lookup_success_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.fail_avg_time",
+                     RECD_INT, RECP_PERSISTENT, (int) dns_fail_time_stat, RecRawStatSyncHrTimeAvg);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.lookup_failures",
+                     RECD_INT, RECP_PERSISTENT, (int) dns_lookup_fail_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.retries", RECD_INT, RECP_PERSISTENT, (int) dns_retries_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.max_retries_exceeded",
+                     RECD_INT, RECP_PERSISTENT, (int) dns_max_retries_exceeded_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(dns_rsb, RECT_PROCESS,
+                     "proxy.process.dns.in_flight",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) dns_in_flight_stat, RecRawStatSyncSum);
+
+}
+
+
+#ifdef TS_HAS_TESTS
+struct DNSRegressionContinuation;
+typedef int (DNSRegressionContinuation::*DNSRegContHandler) (int, void *);
+
+struct DNSRegressionContinuation: public Continuation
+{
+  int hosts;
+  const char **hostnames;
+  int type;
+  int *status;
+  int found;
+  int tofind;
+  int i;
+  RegressionTest *test;
+
+  int mainEvent(int event, HostEnt *he)
+  {
+    (void) event;
+    if (event == DNS_EVENT_LOOKUP) {
+      if (he) {
+        struct in_addr in;
+        ++found;
+        in.s_addr = *(unsigned int *) he->ent.h_addr_list[0];
+        rprintf(test, "host %s [%s] = %s\n", hostnames[i - 1], he->ent.h_name, inet_ntoa(in));
+      } else {
+        rprintf(test, "host %s not found\n", hostnames[i - 1]);
+      }
+    }
+    if (i < hosts) {
+        dnsProcessor.gethostbyname(this, hostnames[i], DNSProcessor::Options().setHostResStyle(HOST_RES_IPV4_ONLY));
+      ++i;
+      return EVENT_CONT;
+    } else {
+      if (found == tofind)
+        *status = REGRESSION_TEST_PASSED;
+      else
+        *status = REGRESSION_TEST_FAILED;
+      return EVENT_DONE;
+    }
+  }
+
+  DNSRegressionContinuation(int ahosts, int atofind, const char **ahostnames, RegressionTest *t, int atype, int *astatus)
+   :  Continuation(new_ProxyMutex()), hosts(ahosts), hostnames(ahostnames), type(atype),
+      status(astatus), found(0), tofind(atofind), i(0), test(t) {
+    SET_HANDLER((DNSRegContHandler) & DNSRegressionContinuation::mainEvent);
+  }
+};
+
+static const char *dns_test_hosts[] = {
+  "www.apple.com",
+  "www.ibm.com",
+  "www.microsoft.com",
+  "www.coke.com"
+};
+
+REGRESSION_TEST(DNS) (RegressionTest *t, int atype, int *pstatus) {
+  eventProcessor.schedule_in(new DNSRegressionContinuation(4, 4, dns_test_hosts, t, atype, pstatus),
+                             HRTIME_SECONDS(1));
+}
+
+#endif
diff --git a/iocore/dns/DNSConnection.cc b/iocore/dns/DNSConnection.cc
new file mode 100644
index 00000000..2b982bea
--- /dev/null
+++ b/iocore/dns/DNSConnection.cc
@@ -0,0 +1,196 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  Connections
+
+  Commonality across all platforms -- move out as required.
+
+**************************************************************************/
+#include "P_DNS.h"
+#include "P_DNSConnection.h"
+#include "P_DNSProcessor.h"
+
+#define SET_TCP_NO_DELAY
+#define SET_NO_LINGER
+// set in the OS
+// #define RECV_BUF_SIZE            (1024*64)
+// #define SEND_BUF_SIZE            (1024*64)
+#define FIRST_RANDOM_PORT        (16000)
+#define LAST_RANDOM_PORT         (60000)
+
+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
+
+DNSConnection::Options const DNSConnection::DEFAULT_OPTIONS;
+
+//
+// Functions
+//
+
+DNSConnection::DNSConnection():
+  fd(NO_FD), num(0), generator((uint32_t)((uintptr_t)time(NULL) ^ (uintptr_t) this)), handler(NULL)
+{
+  memset(&ip, 0, sizeof(ip));
+}
+
+DNSConnection::~DNSConnection()
+{
+  close();
+}
+
+int
+DNSConnection::close()
+{
+  // don't close any of the standards
+  if (fd >= 2) {
+    int fd_save = fd;
+    fd = NO_FD;
+    return socketManager.close(fd_save);
+  } else {
+    fd = NO_FD;
+    return -EBADF;
+  }
+}
+
+void
+DNSConnection::trigger()
+{
+  handler->triggered.enqueue(this);
+}
+
+int
+DNSConnection::connect(sockaddr const* addr, Options const& opt)
+//                       bool non_blocking_connect, bool use_tcp, bool non_blocking, bool bind_random_port)
+{
+  ink_assert(fd == NO_FD);
+  ink_assert(ats_is_ip(addr));
+
+  int res = 0;
+  short Proto;
+  uint8_t af = addr->sa_family;
+  IpEndpoint bind_addr;
+  size_t bind_size = 0;
+
+  if (opt._use_tcp) {
+    Proto = IPPROTO_TCP;
+    if ((res = socketManager.socket(af, SOCK_STREAM, 0)) < 0)
+      goto Lerror;
+  } else {
+    Proto = IPPROTO_UDP;
+    if ((res = socketManager.socket(af, SOCK_DGRAM, 0)) < 0)
+      goto Lerror;
+  }
+
+  fd = res;
+
+  memset(&bind_addr, 0, sizeof bind_addr);
+  bind_addr.sa.sa_family = af;
+
+  if (AF_INET6 == af) {
+    if (ats_is_ip6(opt._local_ipv6)) {
+      ats_ip_copy(&bind_addr.sa, opt._local_ipv6);
+    } else {
+      bind_addr.sin6.sin6_addr = in6addr_any;
+    }
+    bind_size = sizeof(sockaddr_in6);
+  } else if (AF_INET == af) {
+      if (ats_is_ip4(opt._local_ipv4))
+        ats_ip_copy(&bind_addr.sa, opt._local_ipv4);
+      else
+        bind_addr.sin.sin_addr.s_addr = INADDR_ANY;
+      bind_size = sizeof(sockaddr_in);
+  } else {
+    ink_assert(!"Target DNS address must be IP.");
+  }
+
+  if (opt._bind_random_port) {
+    int retries = 0;
+    IpEndpoint bind_addr;
+    size_t bind_size = 0;
+    memset(&bind_addr, 0, sizeof bind_addr);
+    bind_addr.sa.sa_family = af;
+    if (AF_INET6 == af) {
+      bind_addr.sin6.sin6_addr = in6addr_any;
+      bind_size = sizeof bind_addr.sin6;
+    } else {
+      bind_addr.sin.sin_addr.s_addr = INADDR_ANY;
+      bind_size = sizeof bind_addr.sin;
+    }
+    while (retries++ < 10000) {
+      ip_port_text_buffer b;
+      uint32_t p = generator.random();
+      p = static_cast<uint16_t>((p % (LAST_RANDOM_PORT - FIRST_RANDOM_PORT)) + FIRST_RANDOM_PORT);
+      ats_ip_port_cast(&bind_addr.sa) = htons(p); // stuff port in sockaddr.
+      Debug("dns", "random port = %s\n", ats_ip_nptop(&bind_addr.sa, b, sizeof b));
+      if ((res = socketManager.ink_bind(fd, &bind_addr.sa, bind_size, Proto)) < 0) {
+        continue;
+      }
+      goto Lok;
+    }
+    Warning("unable to bind random DNS port");
+  Lok:;
+  } else if (ats_is_ip(&bind_addr.sa)) {
+    ip_text_buffer b;
+    res = socketManager.ink_bind(fd, &bind_addr.sa, bind_size, Proto);
+    if (res < 0) Warning("Unable to bind local address to %s.",
+      ats_ip_ntop(&bind_addr.sa, b, sizeof b));
+  }
+
+  if (opt._non_blocking_connect)
+    if ((res = safe_nonblocking(fd)) < 0)
+      goto Lerror;
+
+  // cannot do this after connection on non-blocking connect
+#ifdef SET_TCP_NO_DELAY
+  if (opt._use_tcp)
+    if ((res = safe_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int))) < 0)
+      goto Lerror;
+#endif
+#ifdef RECV_BUF_SIZE
+  socketManager.set_rcvbuf_size(fd, RECV_BUF_SIZE);
+#endif
+#ifdef SET_SO_KEEPALIVE
+  // enables 2 hour inactivity probes, also may fix IRIX FIN_WAIT_2 leak
+  if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int))) < 0)
+    goto Lerror;
+#endif
+
+  ats_ip_copy(&ip.sa, addr);
+  res =::connect(fd, addr, ats_ip_size(addr));
+
+  if (!res || ((res < 0) && (errno == EINPROGRESS || errno == EWOULDBLOCK))) {
+    if (!opt._non_blocking_connect && opt._non_blocking_io)
+      if ((res = safe_nonblocking(fd)) < 0)
+        goto Lerror;
+    // Shouldn't we turn off non-blocking when it's a non-blocking connect
+    // and blocking IO?
+  } else
+    goto Lerror;
+
+  return 0;
+
+Lerror:
+  if (fd != NO_FD)
+    close();
+  return res;
+}
diff --git a/iocore/dns/I_DNS.h b/iocore/dns/I_DNS.h
new file mode 100644
index 00000000..9d7fdedf
--- /dev/null
+++ b/iocore/dns/I_DNS.h
@@ -0,0 +1,40 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  DNS.h
+
+
+ ****************************************************************************/
+
+
+#ifndef _I_DNS_h_
+#define _I_DNS_h_
+
+#include "I_EventSystem.h"
+#include "I_HostDB.h"
+#include "I_Net.h"
+#include "I_DNSProcessor.h"
+
+#endif //_I_DNS_h_
diff --git a/iocore/dns/I_DNSProcessor.h b/iocore/dns/I_DNSProcessor.h
new file mode 100644
index 00000000..b66f1724
--- /dev/null
+++ b/iocore/dns/I_DNSProcessor.h
@@ -0,0 +1,220 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_DNSProcessor_h_
+#define _I_DNSProcessor_h_
+
+#include "SRV.h"
+
+#define  MAX_DNS_PACKET_LEN         8192
+#define  DNS_MAX_ALIASES              35
+#define  DNS_MAX_ADDRS                35
+#define  DNS_HOSTBUF_SIZE           8192
+#define  DOMAIN_SERVICE_PORT          53
+#define  DEFAULT_DOMAIN_NAME_SERVER    0        // use the default server
+
+
+/**
+  All buffering required to handle a DNS receipt. For asynchronous DNS,
+  only one HostEntBuf will exist in the system. For synchronous DNS,
+  one will exist per call until the user deletes them.
+
+*/
+struct HostEnt : RefCountObj {
+  struct hostent ent;
+  uint32_t ttl;
+  int packet_size;
+  char buf[MAX_DNS_PACKET_LEN];
+  u_char *host_aliases[DNS_MAX_ALIASES];
+  u_char *h_addr_ptrs[DNS_MAX_ADDRS + 1];
+  u_char hostbuf[DNS_HOSTBUF_SIZE];
+
+  SRVHosts srv_hosts;
+
+  virtual void free();
+
+  HostEnt() { 
+    size_t base = sizeof(force_VFPT_to_top);  // preserve VFPT
+    memset(((char*)this) + base, 0, sizeof(*this) - base); 
+  }
+};
+
+extern EventType ET_DNS;
+
+struct DNSHandler;
+
+struct DNSProcessor: public Processor
+{
+  // Public Interface
+  //
+
+  /// Options for host name resolution.
+  struct Options {
+    typedef Options self; ///< Self reference type.
+
+    /// Query handler to use.
+    /// Default: single threaded handler.
+    DNSHandler* handler;
+    /// Query timeout value.
+    /// Default: @c DEFAULT_DNS_TIMEOUT (or as set in records.config)
+    int timeout; ///< Timeout value for request.
+    /// Host resolution style.
+    /// Default: IPv4, IPv6 ( @c HOST_RES_IPV4 )
+    HostResStyle host_res_style;
+
+    /// Default constructor.
+    Options();
+
+    /// Set @a handler option.
+    /// @return This object.
+    self& setHandler(DNSHandler* handler);
+
+    /// Set @a timeout option.
+    /// @return This object.
+    self& setTimeout(int timeout);
+
+    /// Set host query @a style option.
+    /// @return This object.
+    self& setHostResStyle(HostResStyle style);
+
+    /// Reset to default constructed values.
+    /// @return This object.
+    self& reset();
+  };
+
+  // DNS lookup
+  //   calls: cont->handleEvent( DNS_EVENT_LOOKUP, HostEnt *ent) on success
+  //          cont->handleEvent( DNS_EVENT_LOOKUP, NULL) on failure
+  // NOTE: the HostEnt *block is freed when the function returns
+  //
+
+  Action *gethostbyname(Continuation *cont, const char *name, Options const& opt);
+  Action *getSRVbyname(Continuation *cont, const char *name, Options const& opt);
+  Action *gethostbyname(Continuation *cont, const char *name, int len, Options const& opt);
+  Action *gethostbyaddr(Continuation *cont, IpAddr const* ip, Options const& opt);
+
+
+  // Processor API
+  //
+  /* currently dns system uses event threads
+   * dont pass any value to the call */
+  int start(int no_of_extra_dns_threads=0, size_t stacksize=DEFAULT_STACKSIZE);
+
+  // Open/close a link to a 'named' (done in start())
+  //
+  void open(sockaddr const* ns = 0, int options = _res.options);
+
+  DNSProcessor();
+
+  // private:
+  //
+  EThread *thread;
+  DNSHandler *handler;
+  ts_imp_res_state l_res;
+  IpEndpoint local_ipv6;
+  IpEndpoint local_ipv4;
+
+  /** Internal implementation for all getXbyY methods.
+      For host resolution queries pass @c T_A for @a type. It will be adjusted
+      as needed based on @a opt.host_res_style.
+
+      For address resolution ( @a type is @c T_PTR ), @a x should be a
+      @c sockaddr cast to  @c char @c const* .
+   */
+  Action *getby(const char *x, int len, int type, Continuation *cont, Options const& opt);
+
+  void dns_init();
+};
+
+
+//
+// Global data
+//
+extern DNSProcessor dnsProcessor;
+
+//
+// Inline Functions
+//
+
+inline Action *
+DNSProcessor::getSRVbyname(Continuation *cont, const char *name, Options const& opt)
+{
+  return getby(name, 0, T_SRV, cont, opt);
+}
+
+inline Action *
+DNSProcessor::gethostbyname(Continuation *cont, const char *name, Options const& opt)
+{
+  return getby(name, 0, T_A, cont, opt);
+}
+
+inline Action *
+DNSProcessor::gethostbyname(Continuation *cont, const char *name, int len, Options const& opt)
+{
+  return getby(name, len, T_A, cont, opt);
+}
+
+inline Action *
+DNSProcessor::gethostbyaddr(Continuation *cont, IpAddr const* addr, Options const& opt)
+{
+  return getby(reinterpret_cast<char const*>(addr), 0, T_PTR, cont, opt);
+}
+
+inline DNSProcessor::Options::Options()
+                    : handler(0)
+                    , timeout(0)
+                    , host_res_style(HOST_RES_IPV4)
+{
+}
+
+inline DNSProcessor::Options&
+DNSProcessor::Options::setHandler(DNSHandler* h)
+{
+  handler = h;
+  return *this;
+}
+
+inline DNSProcessor::Options&
+DNSProcessor::Options::setTimeout(int t)
+{
+  timeout = t;
+  return *this;
+}
+
+inline DNSProcessor::Options&
+DNSProcessor::Options::setHostResStyle(HostResStyle style)
+{
+  host_res_style = style;
+  return *this;
+}
+
+inline DNSProcessor::Options&
+DNSProcessor::Options::reset()
+{
+  *this = Options();
+  return *this;
+}
+
+void ink_dns_init(ModuleVersion version);
+
+#endif
diff --git a/iocore/dns/I_SplitDNS.h b/iocore/dns/I_SplitDNS.h
new file mode 100644
index 00000000..11cad06a
--- /dev/null
+++ b/iocore/dns/I_SplitDNS.h
@@ -0,0 +1,43 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ * I_SplitDNS.h - Interface to DNS server selection
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _I_SPLIT_DNS_H_
+#define _I_SPLIT_DNS_H_
+
+#include "I_SplitDNSProcessor.h"
+
+#define SPLITDNS_MODULE_MAJOR_VERSION 1
+#define SPLITDNS_MODULE_MINOR_VERSION 0
+#define SPLITDNS_MODULE_VERSION makeModuleVersion(                 \
+                                    SPLITDNS_MODULE_MAJOR_VERSION, \
+                                    SPLITDNS_MODULE_MINOR_VERSION, \
+                                    PUBLIC_MODULE_HEADER)
+
+#endif //_I_SPLIT_DNS_H_
diff --git a/iocore/dns/I_SplitDNSProcessor.h b/iocore/dns/I_SplitDNSProcessor.h
new file mode 100644
index 00000000..a2bf094e
--- /dev/null
+++ b/iocore/dns/I_SplitDNSProcessor.h
@@ -0,0 +1,59 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ * I_SplitDNSProcessor.h - Interface to DNS server selection
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _I_SPLIT_DNSProcessor_H_
+#define _I_SPLIT_DNSProcessor_H_
+
+struct SplitDNS;
+
+/* --------------------------------------------------------------
+   **                struct SplitDNSConfig
+   -------------------------------------------------------------- */
+
+
+struct SplitDNSConfig
+{
+
+  static void startup();
+
+  static bool isSplitDNSEnabled();
+
+  static void reconfigure();
+  static SplitDNS *acquire();
+  static void release(SplitDNS * params);
+  static void print();
+
+  static int m_id;
+  static Ptr<ProxyMutex> dnsHandler_mutex;
+
+  static int gsplit_dns_enabled;
+};
+
+#endif
diff --git a/iocore/dns/Inline.cc b/iocore/dns/Inline.cc
new file mode 100644
index 00000000..7ced38a6
--- /dev/null
+++ b/iocore/dns/Inline.cc
@@ -0,0 +1,32 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using the public interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_DNS.h"
+
+
diff --git a/iocore/dns/Makefile.am b/iocore/dns/Makefile.am
new file mode 100644
index 00000000..fb1ec23e
--- /dev/null
+++ b/iocore/dns/Makefile.am
@@ -0,0 +1,51 @@
+# Makefile.am for the traffic/iocore/net hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils 
+
+noinst_LIBRARIES = libinkdns.a
+
+libinkdns_a_SOURCES = \
+  DNS.cc \
+  DNSConnection.cc \
+  I_DNS.h \
+  I_DNSProcessor.h \
+  I_SplitDNS.h \
+  I_SplitDNSProcessor.h \
+  Inline.cc \
+  P_DNS.h \
+  P_DNSConnection.h \
+  P_DNSProcessor.h \
+  P_SplitDNS.h \
+  P_SplitDNSProcessor.h \
+  SRV.h \
+  SplitDNS.cc
+
+#test_UNUSED_SOURCES = \
+#  test_I_DNS.cc \
+#  test_P_DNS.cc
diff --git a/iocore/dns/Makefile.in b/iocore/dns/Makefile.in
new file mode 100644
index 00000000..9be716f8
--- /dev/null
+++ b/iocore/dns/Makefile.in
@@ -0,0 +1,891 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/net hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
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+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+#test_UNUSED_SOURCES = \
+#  test_I_DNS.cc \
+#  test_P_DNS.cc
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/iocore/dns/P_DNS.h b/iocore/dns/P_DNS.h
new file mode 100644
index 00000000..632367c2
--- /dev/null
+++ b/iocore/dns/P_DNS.h
@@ -0,0 +1,42 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_DNS.h
+
+
+ ****************************************************************************/
+#if !defined (_P_DNS_h_)
+#define _P_DNS_h_
+
+#include "libts.h"
+#include "I_DNS.h"
+#include "P_EventSystem.h"
+#include "I_Cache.h"
+#include "P_Net.h"
+#include "P_DNSConnection.h"
+#include "P_DNSProcessor.h"
+#include "SRV.h"
+
+#endif // _P_DNS_h_
diff --git a/iocore/dns/P_DNSConnection.h b/iocore/dns/P_DNSConnection.h
new file mode 100644
index 00000000..48603763
--- /dev/null
+++ b/iocore/dns/P_DNSConnection.h
@@ -0,0 +1,120 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+
+  P_DNSConnection.h
+  Description:
+  struct DNSConnection
+  **************************************************************************/
+
+#ifndef __P_DNSCONNECTION_H__
+#define __P_DNSCONNECTION_H__
+
+#include "I_EventSystem.h"
+
+//
+// Connection
+//
+struct DNSHandler;
+
+struct DNSConnection {
+  /// Options for connecting.
+  struct Options {
+    typedef Options self; ///< Self reference type.
+
+    /// Connection is done non-blocking.
+    /// Default: @c true.
+    bool _non_blocking_connect;
+    /// Set socket to have non-blocking I/O.
+    /// Default: @c true.
+    bool _non_blocking_io;
+    /// Use TCP if @c true, use UDP if @c false.
+    /// Default: @c false.
+    bool _use_tcp;
+    /// Bind to a random port.
+    /// Default: @c true.
+    bool _bind_random_port;
+    /// Bind to this local address when using IPv6.
+    /// Default: unset, bind to IN6ADDR_ANY.
+    sockaddr const* _local_ipv6;
+    /// Bind to this local address when using IPv4.
+    /// Default: unset, bind to INADDRY_ANY.
+    sockaddr const* _local_ipv4;
+
+    Options();
+
+    self& setUseTcp(bool p);
+    self& setNonBlockingConnect(bool p);
+    self& setNonBlockingIo(bool p);
+    self& setBindRandomPort(bool p);
+    self& setLocalIpv6(sockaddr const* addr);
+    self& setLocalIpv4(sockaddr const* addr);
+  };
+
+  int fd;
+  IpEndpoint ip;
+  int num;
+  LINK(DNSConnection, link);
+  EventIO eio;
+  InkRand generator;
+  DNSHandler* handler;
+
+  int connect(sockaddr const* addr, Options const& opt = DEFAULT_OPTIONS);
+/*
+              bool non_blocking_connect = NON_BLOCKING_CONNECT,
+              bool use_tcp = CONNECT_WITH_TCP, bool non_blocking = NON_BLOCKING, bool bind_random_port = BIND_ANY_PORT);
+*/
+  int close();
+  void trigger();
+
+  virtual ~DNSConnection();
+  DNSConnection();
+
+  static Options const DEFAULT_OPTIONS;
+};
+
+inline DNSConnection::Options::Options() 
+  : _non_blocking_connect(true)
+  , _non_blocking_io(true)
+  , _use_tcp(false)
+  , _bind_random_port(true)
+  , _local_ipv6(0)
+  , _local_ipv4(0)
+{
+}
+
+inline DNSConnection::Options&
+DNSConnection::Options::setNonBlockingIo(bool p) { _non_blocking_io = p; return *this; }
+inline DNSConnection::Options&
+DNSConnection::Options::setNonBlockingConnect(bool p) { _non_blocking_connect = p; return *this; }
+inline DNSConnection::Options&
+DNSConnection::Options::setUseTcp(bool p) { _use_tcp = p; return *this; }
+inline DNSConnection::Options&
+DNSConnection::Options::setBindRandomPort(bool p) { _bind_random_port = p; return *this; }
+inline DNSConnection::Options&
+DNSConnection::Options::setLocalIpv4(sockaddr const* ip) { _local_ipv4 = ip; return *this; }
+inline DNSConnection::Options&
+DNSConnection::Options::setLocalIpv6(sockaddr const* ip) { _local_ipv6 = ip; return *this; }
+
+#endif /*_P_DNSConnection_h*/
diff --git a/iocore/dns/P_DNSProcessor.h b/iocore/dns/P_DNSProcessor.h
new file mode 100644
index 00000000..9cb27eaf
--- /dev/null
+++ b/iocore/dns/P_DNSProcessor.h
@@ -0,0 +1,347 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_P_DNSProcessor_h_)
+#define _P_DNSProcessor_h_
+
+/*
+  #include "I_DNS.h"
+  #include "libts.h"
+  #include <arpa/nameser.h>
+  #include "I_Cache.h"
+  #include "P_Net.h"
+*/
+#include "I_EventSystem.h"
+
+#define MAX_NAMED                           32
+#define DEFAULT_DNS_RETRIES                 5
+#define MAX_DNS_RETRIES                     9
+#define DEFAULT_DNS_TIMEOUT                 30
+#define MAX_DNS_IN_FLIGHT                   2048
+#define DEFAULT_FAILOVER_NUMBER             (DEFAULT_DNS_RETRIES + 1)
+#define DEFAULT_FAILOVER_PERIOD             (DEFAULT_DNS_TIMEOUT + 30)
+// how many seconds before FAILOVER_PERIOD to try the primary with
+// a well known address
+#define DEFAULT_FAILOVER_TRY_PERIOD         (DEFAULT_DNS_TIMEOUT + 1)
+#define DEFAULT_DNS_SEARCH           1
+#define FAILOVER_SOON_RETRY          5
+#define NO_NAMESERVER_SELECTED       -1
+
+//
+// Config
+//
+extern int dns_timeout;
+extern int dns_retries;
+extern int dns_search;
+extern int dns_failover_number;
+extern int dns_failover_period;
+extern int dns_failover_try_period;
+extern int dns_max_dns_in_flight;
+extern unsigned int dns_sequence_number;
+
+//
+// Constants
+//
+
+#define DNS_PERIOD                          HRTIME_MSECONDS(-100)
+#define DNS_DELAY_PERIOD                    HRTIME_MSECONDS(10)
+#define DNS_SEQUENCE_NUMBER_RESTART_OFFSET  4000
+#define DNS_PRIMARY_RETRY_PERIOD            HRTIME_SECONDS(5)
+#define DNS_PRIMARY_REOPEN_PERIOD           HRTIME_SECONDS(60)
+#define BAD_DNS_RESULT                      ((HostEnt*)(uintptr_t)-1)
+#define DEFAULT_NUM_TRY_SERVER              8
+
+// these are from nameser.h
+#ifndef HFIXEDSZ
+#define HFIXEDSZ 12
+#endif
+#ifndef QFIXEDSZ
+#define QFIXEDSZ 4
+#endif
+
+
+// Events
+
+#define DNS_EVENT_LOOKUP             DNS_EVENT_EVENTS_START
+
+extern int dns_fd;
+
+void *dns_udp_receiver(void *arg);
+
+
+//Stats
+enum DNS_Stats
+{
+  dns_total_lookups_stat,
+  dns_response_time_stat,
+  dns_success_time_stat,
+  dns_lookup_success_stat,
+  dns_lookup_fail_stat,
+  dns_fail_time_stat,
+  dns_retries_stat,
+  dns_max_retries_exceeded_stat,
+  dns_sequence_number_stat,
+  dns_in_flight_stat,
+  DNS_Stat_Count
+};
+
+struct HostEnt;
+struct DNSHandler;
+
+struct RecRawStatBlock;
+extern RecRawStatBlock *dns_rsb;
+
+// Stat Macros
+
+#define DNS_DEBUG_COUNT_DYN_STAT(_x, _y)                            \
+  RecIncrRawStatCount(dns_rsb, mutex->thread_holding, (int)_x, _y)
+
+#define DNS_INCREMENT_DYN_STAT(_x)                              \
+  RecIncrRawStatSum(dns_rsb, mutex->thread_holding, (int)_x, 1)
+
+#define DNS_DECREMENT_DYN_STAT(_x)                                \
+  RecIncrRawStatSum(dns_rsb, mutex->thread_holding, (int)_x, -1)
+
+#define DNS_SUM_DYN_STAT(_x, _r)                                  \
+  RecIncrRawStatSum(dns_rsb, mutex->thread_holding, (int)_x, _r)
+
+#define DNS_READ_DYN_STAT(_x, _count, _sum) do {    \
+    RecGetRawStatSum(dns_rsb, (int)_x, &_sum);      \
+    RecGetRawStatCount(dns_rsb, (int)_x, &_count);  \
+  } while (0)
+
+#define DNS_SET_DYN_COUNT(_x, _count)           \
+  RecSetRawStatCount(dns_rsb, _x, _count);
+
+#define DNS_INCREMENT_THREAD_DYN_STAT(_s, _t)   \
+  RecIncrRawStatSum(dns_rsb, _t, (int) _s, 1);
+
+#define DNS_DECREMENT_THREAD_DYN_STAT(_s, _t)   \
+  RecIncrRawStatSum(dns_rsb, _t, (int) _s, -1);
+
+/**
+  One DNSEntry is allocated per outstanding request. This continuation
+  handles TIMEOUT events for the request as well as storing all
+  information about the request and its status.
+
+*/
+struct DNSEntry: public Continuation
+{
+  int id[MAX_DNS_RETRIES];
+  int qtype; ///< Type of query to send.
+  HostResStyle host_res_style; ///< Preferred IP address family.
+  int retries;
+  int which_ns;
+  ink_hrtime submit_time;
+  ink_hrtime send_time;
+  char qname[MAXDNAME];
+  int qname_len;
+  int orig_qname_len;
+  char **domains;
+  EThread *submit_thread;
+  Action action;
+  Event *timeout;
+  Ptr<HostEnt> result_ent;
+  DNSHandler *dnsH;
+  bool written_flag;
+  bool once_written_flag;
+  bool last;
+  LINK(DNSEntry, dup_link);
+  Que(DNSEntry, dup_link) dups;
+
+  int mainEvent(int event, Event *e);
+  int delayEvent(int event, Event *e);
+  int post(DNSHandler *h, HostEnt *ent);
+  int postEvent(int event, Event *e);
+  void init(const char *x, int len, int qtype_arg, Continuation *acont, DNSProcessor::Options const& opt);
+
+   DNSEntry()
+     : Continuation(NULL),
+       qtype(0),
+       host_res_style(HOST_RES_NONE),
+       retries(DEFAULT_DNS_RETRIES),
+       which_ns(NO_NAMESERVER_SELECTED), submit_time(0), send_time(0), qname_len(0),
+       orig_qname_len(0), domains(0), timeout(0), result_ent(0), dnsH(0), written_flag(false),
+       once_written_flag(false), last(false)
+  {
+    for (int i = 0; i < MAX_DNS_RETRIES; i++)
+      id[i] = -1;
+    memset(qname, 0, MAXDNAME);
+  }
+};
+
+
+typedef int (DNSEntry::*DNSEntryHandler) (int, void *);
+
+struct DNSEntry;
+
+/**
+  One DNSHandler is allocated to handle all DNS traffic by polling a
+  UDP port.
+
+*/
+struct DNSHandler: public Continuation
+{
+  /// This is used as the target if round robin isn't set.
+  IpEndpoint ip;
+  IpEndpoint local_ipv6; ///< Local V6 address if set.
+  IpEndpoint local_ipv4; ///< Local V4 address if set.
+  int ifd[MAX_NAMED];
+  int n_con;
+  DNSConnection con[MAX_NAMED];
+  int options;
+  Queue<DNSEntry> entries;
+  Queue<DNSConnection> triggered;
+  int in_flight;
+  int name_server;
+  int in_write_dns;
+  HostEnt *hostent_cache;
+
+  int ns_down[MAX_NAMED];
+  int failover_number[MAX_NAMED];
+  int failover_soon_number[MAX_NAMED];
+  ink_hrtime crossed_failover_number[MAX_NAMED];
+  ink_hrtime last_primary_retry;
+  ink_hrtime last_primary_reopen;
+
+  ink_res_state m_res;
+  int txn_lookup_timeout;
+
+  InkRand generator;
+  // bitmap of query ids in use
+  uint64_t qid_in_flight[(USHRT_MAX+1)/64];
+
+  void received_one(int i)
+  {
+    failover_number[i] = failover_soon_number[i] = crossed_failover_number[i] = 0;
+  }
+
+  void sent_one()
+  {
+    ++failover_number[name_server];
+    Debug("dns", "sent_one: failover_number for resolver %d is %d", name_server, failover_number[name_server]);
+    if (failover_number[name_server] >= dns_failover_number && !crossed_failover_number[name_server])
+      crossed_failover_number[name_server] = ink_get_hrtime();
+  }
+
+  bool failover_now(int i)
+  {
+    if (is_debug_tag_set("dns")) {
+      Debug("dns", "failover_now: Considering immediate failover, target time is %" PRId64 "",
+            (ink_hrtime)HRTIME_SECONDS(dns_failover_period));
+      Debug("dns", "\tdelta time is %" PRId64 "", (ink_get_hrtime() - crossed_failover_number[i]));
+    }
+    return (crossed_failover_number[i] &&
+            ((ink_get_hrtime() - crossed_failover_number[i]) > HRTIME_SECONDS(dns_failover_period)));
+  }
+
+  bool failover_soon(int i) {
+    return (crossed_failover_number[i] &&
+            ((ink_get_hrtime() - crossed_failover_number[i]) >
+             (HRTIME_SECONDS(dns_failover_try_period + failover_soon_number[i] * FAILOVER_SOON_RETRY))));
+  }
+
+  void recv_dns(int event, Event *e);
+  int startEvent(int event, Event *e);
+  int startEvent_sdns(int event, Event *e);
+  int mainEvent(int event, Event *e);
+
+  void open_con(sockaddr const* addr, bool failed = false, int icon = 0);
+  void failover();
+  void rr_failure(int ndx);
+  void recover();
+  void retry_named(int ndx, ink_hrtime t, bool reopen = true);
+  void try_primary_named(bool reopen = true);
+  void switch_named(int ndx);
+  uint16_t get_query_id();
+
+  void release_query_id(uint16_t qid) {
+    qid_in_flight[qid >> 6] &= (uint64_t)~(0x1ULL << (qid & 0x3F));
+  };
+
+  void set_query_id_in_use(uint16_t qid) {
+    qid_in_flight[qid >> 6] |= (uint64_t)(0x1ULL << (qid & 0x3F));
+  };
+
+  bool query_id_in_use(uint16_t qid) {
+    return (qid_in_flight[(uint16_t)(qid) >> 6] & (uint64_t)(0x1ULL << ((uint16_t)(qid) & 0x3F))) != 0;
+  };
+
+  DNSHandler();
+
+private:
+  // Check the IP address and switch to default if needed.
+  void validate_ip();
+};
+
+/* --------------------------------------------------------------
+   **                struct DNSServer
+
+   A record for an single server
+   -------------------------------------------------------------- */
+struct DNSServer
+{
+  IpEndpoint x_server_ip[MAXNS];
+  char x_dns_ip_line[MAXDNAME * 2];
+
+  char x_def_domain[MAXDNAME];
+  char x_domain_srch_list[MAXDNAME];
+
+  DNSHandler *x_dnsH;
+
+  DNSServer()
+  : x_dnsH(NULL)
+  {
+    memset(x_server_ip, 0, sizeof(x_server_ip));
+
+    memset(x_def_domain, 0, MAXDNAME);
+    memset(x_domain_srch_list, 0, MAXDNAME);
+    memset(x_dns_ip_line, 0, MAXDNAME * 2);
+  }
+};
+
+
+TS_INLINE DNSHandler::DNSHandler()
+ : Continuation(NULL), n_con(0), options(0), in_flight(0), name_server(0), in_write_dns(0),
+  hostent_cache(0), last_primary_retry(0), last_primary_reopen(0),
+  m_res(0), txn_lookup_timeout(0), generator((uint32_t)((uintptr_t)time(NULL) ^ (uintptr_t)this))
+{
+  ats_ip_invalidate(&ip);
+  for (int i = 0; i < MAX_NAMED; i++) {
+    ifd[i] = -1;
+    failover_number[i] = 0;
+    failover_soon_number[i] = 0;
+    crossed_failover_number[i] = 0;
+    ns_down[i] = 1;
+    con[i].handler = this;
+  }
+  memset(&qid_in_flight, 0, sizeof(qid_in_flight));  
+  SET_HANDLER(&DNSHandler::startEvent);
+  Debug("net_epoll", "inline DNSHandler::DNSHandler()");
+}
+
+#define DOT_SEPARATED(_x)                                   \
+  ((unsigned char*)&(_x))[0], ((unsigned char*)&(_x))[1],   \
+    ((unsigned char*)&(_x))[2], ((unsigned char*)&(_x))[3]
+
+#endif
diff --git a/iocore/dns/P_SplitDNS.h b/iocore/dns/P_SplitDNS.h
new file mode 100644
index 00000000..d63c1d5b
--- /dev/null
+++ b/iocore/dns/P_SplitDNS.h
@@ -0,0 +1,48 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ * P_SplitDNS.h - Interface to DNS server selection
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _P_SPLIT_DNS_H_
+#define _P_SPLIT_DNS_H_
+
+#include "P_DNS.h"
+#include "I_SplitDNS.h"
+#include "I_Lock.h"
+#include "ControlBase.h"
+#include "ControlMatcher.h"
+#include "P_SplitDNSProcessor.h"
+
+#undef  SPLITDNS_MODULE_VERSION
+#define SPLITDNS_MODULE_VERSION makeModuleVersion(                 \
+                                    SPLITDNS_MODULE_MAJOR_VERSION, \
+                                    SPLITDNS_MODULE_MINOR_VERSION, \
+                                    PRIVATE_MODULE_HEADER)
+
+
+#endif /* _P_SPLIT_DNS_H_ */
diff --git a/iocore/dns/P_SplitDNSProcessor.h b/iocore/dns/P_SplitDNSProcessor.h
new file mode 100644
index 00000000..b2559adb
--- /dev/null
+++ b/iocore/dns/P_SplitDNSProcessor.h
@@ -0,0 +1,249 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ * P_SplitDNSProcessor.h - Interface to DNS server selection
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _P_SPLIT_DNSProcessor_H_
+#define _P_SPLIT_DNSProcessor_H_
+
+/*
+#include "P_DNS.h"
+#include "I_SplitDNS.h"
+#include "I_Lock.h"
+#include "ControlBase.h"
+#include "ControlMatcher.h"
+*/
+#include "ProxyConfig.h"
+
+/* ---------------------------
+   forward declarations ...
+   --------------------------- */
+void ink_split_dns_init(ModuleVersion version);
+
+struct RequestData;
+
+struct matcher_line;
+
+class SplitDNSRecord;
+struct SplitDNSResult;
+
+struct DNSServer;
+
+enum DNSResultType
+{ DNS_SRVR_UNDEFINED = 0,
+  DNS_SRVR_SPECIFIED,
+  DNS_SRVR_FAIL
+};
+
+typedef ControlMatcher<SplitDNSRecord, SplitDNSResult> DNS_table;
+
+
+/* --------------------------------------------------------------
+   **                struct SplitDNSResult
+   -------------------------------------------------------------- */
+struct SplitDNSResult
+{
+  SplitDNSResult();
+
+  /* ------------
+     public
+     ------------ */
+  DNSResultType r;
+
+  DNSServer *get_dns_record();
+  int get_dns_srvr_count();
+
+  /* ------------
+     private
+     ------------ */
+  int m_line_number;
+
+  SplitDNSRecord *m_rec;
+  bool m_wrap_around;
+};
+
+
+/* --------------------------------------------------------------
+   **                struct SplitDNS
+   -------------------------------------------------------------- */
+struct SplitDNS:public ConfigInfo
+{
+  SplitDNS();
+  ~SplitDNS();
+
+  void *getDNSRecord(const char *hostname);
+  void findServer(RequestData * rdata, SplitDNSResult * result);
+
+
+  DNS_table *m_DNSSrvrTable;
+
+  int32_t m_SplitDNSlEnable;
+
+  /* ----------------------------
+     required by the alleged fast
+     path
+     ---------------------------- */
+  bool m_bEnableFastPath;
+  void *m_pxLeafArray;
+  int m_numEle;
+};
+
+
+/* --------------------------------------------------------------
+   SplitDNSConfig::isSplitDNSEnabled()
+   -------------------------------------------------------------- */
+TS_INLINE bool SplitDNSConfig::isSplitDNSEnabled()
+{
+  return (gsplit_dns_enabled ? true : false);
+}
+
+
+//
+// End API to outside world
+//
+
+
+/* --------------------------------------------------------------
+   **                class DNSRequestData
+
+   A record for an single server
+   -------------------------------------------------------------- */
+class DNSRequestData: public RequestData
+{
+public:
+
+  DNSRequestData();
+
+  char *get_string();
+
+  const char *get_host();
+
+  sockaddr const* get_ip(); // unused required virtual method.
+  sockaddr const* get_client_ip(); // unused required virtual method.
+
+  const char *m_pHost;
+};
+
+
+/* --------------------------------------------------------------
+   DNSRequestData::get_string()
+   -------------------------------------------------------------- */
+TS_INLINE DNSRequestData::DNSRequestData()
+: m_pHost(0)
+{
+}
+
+
+/* --------------------------------------------------------------
+   DNSRequestData::get_string()
+   -------------------------------------------------------------- */
+TS_INLINE char *
+DNSRequestData::get_string()
+{
+  return ats_strdup((char *) m_pHost);
+}
+
+
+/* --------------------------------------------------------------
+   DNSRequestData::get_host()
+   -------------------------------------------------------------- */
+TS_INLINE const char *
+DNSRequestData::get_host()
+{
+  return m_pHost;
+}
+
+
+/* --------------------------------------------------------------
+   DNSRequestData::get_ip()
+   -------------------------------------------------------------- */
+TS_INLINE sockaddr const* DNSRequestData::get_ip()
+{
+  return NULL;
+}
+
+
+/* --------------------------------------------------------------
+   DNSRequestData::get_client_ip()
+   -------------------------------------------------------------- */
+TS_INLINE sockaddr const* DNSRequestData::get_client_ip()
+{
+  return NULL;
+}
+
+/* --------------------------------------------------------------
+   *                 class SplitDNSRecord
+
+   A record for a configuration line in the splitdns.config file
+   -------------------------------------------------------------- */
+class SplitDNSRecord: public ControlBase
+{
+public:
+
+  SplitDNSRecord();
+  ~SplitDNSRecord();
+
+  char *Init(matcher_line * line_info);
+
+  const char *ProcessDNSHosts(char *val);
+  const char *ProcessDomainSrchList(char *val);
+  const char *ProcessDefDomain(char *val);
+
+  void UpdateMatch(SplitDNSResult * result, RequestData * rdata);
+  void Print();
+
+  DNSServer m_servers;
+  int m_dnsSrvr_cnt;
+  int m_domain_srch_list;
+};
+
+
+/* --------------------------------------------------------------
+   SplitDNSRecord::SplitDNSRecord()
+   -------------------------------------------------------------- */
+TS_INLINE SplitDNSRecord::SplitDNSRecord()
+: m_dnsSrvr_cnt(0), m_domain_srch_list(0)
+{ }
+
+
+/* --------------------------------------------------------------
+   SplitDNSRecord::~SplitDNSRecord()
+   -------------------------------------------------------------- */
+TS_INLINE SplitDNSRecord::~SplitDNSRecord()
+{ }
+
+
+/* ------------------
+   Helper Functions
+   ------------------ */
+
+SplitDNSRecord *createDefaultServer();
+void reloadDefaultParent(char *val);
+void reloadParentFile();
+
+#endif
diff --git a/iocore/dns/SRV.h b/iocore/dns/SRV.h
new file mode 100644
index 00000000..8e3e6970
--- /dev/null
+++ b/iocore/dns/SRV.h
@@ -0,0 +1,74 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _SRV_h_
+#define _SRV_h_
+
+#include "libts.h"
+#include "I_HostDBProcessor.h"
+
+struct HostDBInfo;
+
+#define HOST_DB_MAX_ROUND_ROBIN_INFO  16
+#define RAND_INV_RANGE(r) ((int) ((RAND_MAX + 1) / (r)))
+
+struct SRV
+{
+  unsigned int weight;
+  unsigned int port;
+  unsigned int priority;
+  unsigned int ttl;
+  unsigned int host_len;
+  unsigned int key;
+  char host[MAXDNAME];
+
+  SRV():weight(0), port(0), priority(0), ttl(0), host_len(0), key(0)
+  {
+    host[0] = '\0';
+  }
+};
+
+inline bool
+operator<(const SRV &left, const SRV &right)
+{
+  // lower priorities first, then the key
+  return (left.priority == right.priority) ? (left.key < right.key) : (left.priority < right.priority);
+}
+
+
+struct SRVHosts
+{
+  unsigned srv_host_count;
+  unsigned srv_hosts_length;
+  SRV hosts[HOST_DB_MAX_ROUND_ROBIN_INFO];
+
+  ~SRVHosts()
+  {
+  }
+
+  SRVHosts():srv_host_count(0), srv_hosts_length(0)
+  {
+  }
+};
+
+#endif
diff --git a/iocore/dns/SplitDNS.cc b/iocore/dns/SplitDNS.cc
new file mode 100644
index 00000000..f0f0a980
--- /dev/null
+++ b/iocore/dns/SplitDNS.cc
@@ -0,0 +1,597 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  SplitDNS.cc - Implementation of "split" DNS (as the name says)
+ *
+ *
+ ****************************************************************************/
+
+#include "libts.h"
+
+#ifdef SPLIT_DNS
+#include <sys/types.h>
+#include "P_SplitDNS.h"
+#include "MatcherUtils.h"
+#include "HostLookup.h"
+
+
+/* --------------------------------------------------------------
+   this file is built using "ParentSelection.cc as a template.
+   -------------    ------------------------------------------------- */
+
+/* --------------------------------------------------------------
+   globals
+   -------------------------------------------------------------- */
+static const char modulePrefix[] = "[SplitDNS]";
+
+static ConfigUpdateHandler<SplitDNSConfig> * splitDNSUpdate;
+
+static ClassAllocator<DNSRequestData> DNSReqAllocator("DNSRequestDataAllocator");
+
+/* --------------------------------------------------------------
+   used by a lot of protocols. We do not have dest ip in most
+   cases.
+   -------------------------------------------------------------- */
+const matcher_tags sdns_dest_tags = {
+  "dest_host", "dest_domain", NULL, "url_regex", "url", NULL, true
+};
+
+
+/* --------------------------------------------------------------
+   config Callback Prototypes
+   -------------------------------------------------------------- */
+enum SplitDNSCB_t
+{
+  SDNS_FILE_CB,
+  SDNS_ENABLE_CB
+};
+
+
+static const char *SDNSResultStr[] = {
+  "DNSServer_Undefined",
+  "DNSServer_Specified",
+  "DNSServer_Failed"
+};
+
+
+int SplitDNSConfig::m_id = 0;
+int SplitDNSConfig::gsplit_dns_enabled = 0;
+int splitDNSFile_CB(const char *name, RecDataT data_type, RecData data, void *cookie);
+Ptr<ProxyMutex> SplitDNSConfig::dnsHandler_mutex;
+
+
+/* --------------------------------------------------------------
+   SplitDNSResult::SplitDNSResult()
+   -------------------------------------------------------------- */
+inline SplitDNSResult::SplitDNSResult()
+  : r(DNS_SRVR_UNDEFINED), m_line_number(0), m_rec(0), m_wrap_around(false)
+{
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNS::SplitDNS()
+   -------------------------------------------------------------- */
+SplitDNS::SplitDNS()
+: m_DNSSrvrTable(NULL), m_SplitDNSlEnable(0),
+  m_bEnableFastPath(false), m_pxLeafArray(NULL), m_numEle(0)
+{
+}
+
+
+SplitDNS::~SplitDNS()
+{
+  if (m_DNSSrvrTable) {
+    delete m_DNSSrvrTable;
+  }
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSConfig::acquire()
+   -------------------------------------------------------------- */
+SplitDNS *
+SplitDNSConfig::acquire()
+{
+  return (SplitDNS *) configProcessor.get(SplitDNSConfig::m_id);
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSConfig::release()
+   -------------------------------------------------------------- */
+void
+SplitDNSConfig::release(SplitDNS * params)
+{
+  configProcessor.release(SplitDNSConfig::m_id, params);
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSConfig::startup()
+   -------------------------------------------------------------- */
+void
+SplitDNSConfig::startup()
+{
+  dnsHandler_mutex = new_ProxyMutex();
+
+  //startup just check gsplit_dns_enabled
+  REC_ReadConfigInt32(gsplit_dns_enabled, "proxy.config.dns.splitDNS.enabled");
+  splitDNSUpdate = new ConfigUpdateHandler<SplitDNSConfig>();
+  splitDNSUpdate->attach("proxy.config.cache.splitdns.filename");
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSConfig::reconfigure()
+   -------------------------------------------------------------- */
+void
+SplitDNSConfig::reconfigure()
+{
+  if (0 == gsplit_dns_enabled)
+    return;
+
+  SplitDNS *params = new SplitDNS;
+
+  params->m_SplitDNSlEnable = gsplit_dns_enabled;
+  params->m_DNSSrvrTable = new DNS_table("proxy.config.dns.splitdns.filename", modulePrefix, &sdns_dest_tags);
+
+  params->m_numEle = params->m_DNSSrvrTable->getEntryCount();
+  if (0 == params->m_DNSSrvrTable || (0 == params->m_numEle)) {
+    Warning("No NAMEDs provided! Disabling SplitDNS");
+    gsplit_dns_enabled = 0;
+    delete params;
+    return;
+  }
+
+  if (0 != params->m_DNSSrvrTable->getHostMatcher() &&
+      0 == params->m_DNSSrvrTable->getReMatcher() &&
+      0 == params->m_DNSSrvrTable->getIPMatcher() && 4 >= params->m_numEle) {
+
+    HostLookup *pxHL = params->m_DNSSrvrTable->getHostMatcher()->getHLookup();
+    params->m_pxLeafArray = (void *) pxHL->getLArray();
+    params->m_bEnableFastPath = true;
+  }
+
+  m_id = configProcessor.set(m_id, params);
+
+  if (is_debug_tag_set("splitdns_config")) {
+    SplitDNSConfig::print();
+  }
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSConfig::print()
+   -------------------------------------------------------------- */
+void
+SplitDNSConfig::print()
+{
+  SplitDNS *params = SplitDNSConfig::acquire();
+
+  Debug("splitdns_config", "DNS Server Selection Config\n");
+  Debug("splitdns_config", "\tEnabled=%d \n", params->m_SplitDNSlEnable);
+
+  params->m_DNSSrvrTable->Print();
+  SplitDNSConfig::release(params);
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNS::getDNSRecord()
+   -------------------------------------------------------------- */
+void *
+SplitDNS::getDNSRecord(const char *hostname)
+{
+  Debug("splitdns", "Called SplitDNS::getDNSRecord(%s)", hostname);
+
+  DNSRequestData *pRD = DNSReqAllocator.alloc();
+  pRD->m_pHost = hostname;
+
+  SplitDNSResult res;
+  findServer(pRD, &res);
+
+  DNSReqAllocator.free(pRD);
+
+  if (DNS_SRVR_SPECIFIED == res.r) {
+    return (void *) &(res.m_rec->m_servers);
+  }
+
+  Debug("splitdns", "Fail to match a valid splitdns rule, fallback to default dns resolver");
+  return NULL;
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNS::findServer()
+   -------------------------------------------------------------- */
+void
+SplitDNS::findServer(RequestData * rdata, SplitDNSResult * result)
+{
+  DNS_table *tablePtr = m_DNSSrvrTable;
+  SplitDNSRecord *rec;
+
+  ink_assert(result->r == DNS_SRVR_UNDEFINED);
+
+  if (m_SplitDNSlEnable == 0) {
+    result->r = DNS_SRVR_UNDEFINED;
+    return;
+  }
+
+  result->m_rec = NULL;
+  result->m_line_number = 0xffffffff;
+  result->m_wrap_around = false;
+
+  /* ---------------------------
+     the 'alleged' fast path ...
+     --------------------------- */
+  if (m_bEnableFastPath) {
+    SplitDNSRecord *data_ptr = 0;
+    char *pHost = (char *) rdata->get_host();
+    if (0 == pHost) {
+      Warning("SplitDNS: No host to match !");
+      return;
+    }
+
+    int len = strlen(pHost);
+    HostLeaf *pxHL = (HostLeaf *) m_pxLeafArray;
+    for (int i = 0; i < m_numEle; i++) {
+      if (0 == pxHL)
+        break;
+
+      if (false == pxHL[i].isNot && pxHL[i].len > len)
+        continue;
+
+      int idx = len - pxHL[i].len;
+      char *pH = &pHost[idx];
+      char *pMatch = (char *) pxHL[i].match;
+      char cNot = *pMatch;
+
+      if ('!' == cNot)
+        pMatch++;
+
+      int res = memcmp(pH, pMatch, pxHL[i].len);
+
+      if ((0 != res && '!' == cNot) || (0 == res && '!' != cNot)) {
+        data_ptr = (SplitDNSRecord *) pxHL[i].opaque_data;
+        data_ptr->UpdateMatch(result, rdata);
+        break;
+      }
+    }
+  } else {
+    tablePtr->Match(rdata, result);
+  }
+
+  rec = result->m_rec;
+  if (rec == NULL) {
+    result->r = DNS_SRVR_UNDEFINED;
+    return;
+  } else {
+    result->r = DNS_SRVR_SPECIFIED;
+  }
+
+  if (is_debug_tag_set("splitdns_config")) {
+    const char *host = rdata->get_host();
+
+    switch (result->r) {
+    case DNS_SRVR_FAIL:
+      Debug("splitdns_config", "Result for %s was %s", host, SDNSResultStr[result->r]);
+      break;
+    case DNS_SRVR_SPECIFIED:
+      Debug("splitdns_config", "Result for %s was dns servers \n", host);
+      result->m_rec->Print();
+      break;
+    default:
+      // DNS_SRVR_UNDEFINED
+      break;
+    }
+  }
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSRecord::ProcessDNSHosts()
+   -------------------------------------------------------------- */
+const char *
+SplitDNSRecord::ProcessDNSHosts(char *val)
+{
+  Tokenizer pTok(",; \t\r");
+  int numTok;
+  const char *current;
+  int port = 0;
+  char *tmp;
+  int totsz = 0, sz = 0;
+
+  numTok = pTok.Initialize(val, SHARE_TOKS);
+  if (MAXNS < numTok) {
+    numTok = MAXNS;
+    Warning("Only first %d DNS servers are tracked", numTok);
+  }
+  if (numTok == 0) {
+    return "No servers specified";
+  }
+
+  /* ------------------------------------------------
+     Allocate the servers array and Loop through the
+     set of servers specified
+     ------------------------------------------------ */
+  for (int i = 0; i < numTok; i++) {
+    current = pTok[i];
+    tmp = (char *) strchr(current, ':');
+    // coverity[secure_coding]
+    if (tmp != NULL && sscanf(tmp + 1, "%d", &port) != 1) {
+      return "Malformed DNS port";
+    }
+
+    /* ----------------------------------------
+       Make sure that is no garbage beyond the
+       server port
+       ---------------------------------------- */
+    if (tmp) {
+      char *scan = tmp + 1;
+      for (; *scan != '\0' && ParseRules::is_digit(*scan); scan++);
+      for (; *scan != '\0' && ParseRules::is_wslfcr(*scan); scan++);
+
+      if (*scan != '\0') {
+        return "Garbage trailing entry or invalid separator";
+      }
+
+      if (tmp - current > (MAXDNAME - 1)) {
+        return "DNS server name (ip) is too long";
+      } else if (tmp - current == 0) {
+        return "server string is emtpy";
+      }
+      *tmp = 0;
+    }
+
+    if (0 != ats_ip_pton(current, &m_servers.x_server_ip[i].sa)) {
+      return "invalid IP address given for a DNS server";
+    }
+
+    ats_ip_port_cast(&m_servers.x_server_ip[i].sa) = htons(port ? port : NAMESERVER_PORT);
+
+    if ((MAXDNAME * 2 - 1) > totsz) {
+      sz = strlen(current);
+      memcpy((m_servers.x_dns_ip_line + totsz), current, sz);
+      totsz += sz;
+    }
+  }
+
+  m_dnsSrvr_cnt = numTok;
+  return NULL;
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSRecord::ProcessDefDomain()
+   -------------------------------------------------------------- */
+const char *
+SplitDNSRecord::ProcessDefDomain(char *val)
+{
+  Tokenizer pTok(",; \t\r");
+  int numTok;
+
+  numTok = pTok.Initialize(val, SHARE_TOKS);
+
+  if (numTok > 1) {
+    return "more than one default domain name specified";
+  }
+
+  if (numTok == 0) {
+    return "no default domain name specified";
+  }
+
+  int len = 0;
+  if (pTok[0] && 0 != (len = strlen(pTok[0]))) {
+    memcpy(&m_servers.x_def_domain[0], pTok[0], len);
+    m_servers.x_def_domain[len] = '\0';
+  }
+
+  return NULL;
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSRecord::ProcessDomainSrchList()
+   -------------------------------------------------------------- */
+const char *
+SplitDNSRecord::ProcessDomainSrchList(char *val)
+{
+  Tokenizer pTok(",; \t\r");
+  int numTok;
+  int cnt = 0, sz = 0;
+  char *pSp = 0;
+  const char *current;
+
+  numTok = pTok.Initialize(val, SHARE_TOKS);
+
+  if (numTok == 0) {
+    return "No servers specified";
+  }
+
+  pSp = &m_servers.x_domain_srch_list[0];
+
+  for (int i = 0; i < numTok; i++) {
+    current = pTok[i];
+    cnt = sz += strlen(current);
+
+    if (MAXDNAME - 1 < sz)
+      break;
+
+    memcpy(pSp, current, cnt);
+    pSp += (cnt + 1);
+  }
+
+  m_domain_srch_list = numTok;
+  return NULL;
+}
+
+
+/* --------------------------------------------------------------
+   SplitDNSRecord::Init()
+
+   matcher_line* line_info - contains parsed label/value pairs
+   of the current split.config line
+   -------------------------------------------------------------- */
+char *
+SplitDNSRecord::Init(matcher_line * line_info)
+{
+  const char *errPtr = NULL;
+  const int errBufLen = 1024;
+  char *errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+  const char *tmp;
+  char *label;
+  char *val;
+
+  this->line_num = line_info->line_num;
+  for (int i = 0; i < MATCHER_MAX_TOKENS; i++) {
+    label = line_info->line[0][i];
+    val = line_info->line[1][i];
+
+    if (label == NULL) {
+      continue;
+    }
+
+    if (strcasecmp(label, "def_domain") == 0) {
+      if (NULL != (errPtr = ProcessDefDomain(val))) {
+        snprintf(errBuf, errBufLen, "%s %s at line %d", modulePrefix, errPtr, line_num);
+        return errBuf;
+      }
+      line_info->line[0][i] = NULL;
+      line_info->num_el--;
+      continue;
+    }
+
+    if (strcasecmp(label, "search_list") == 0) {
+      if (NULL != (errPtr = ProcessDomainSrchList(val))) {
+        snprintf(errBuf, errBufLen, "%s %s at line %d", modulePrefix, errPtr, line_num);
+        return errBuf;
+      }
+      line_info->line[0][i] = NULL;
+      line_info->num_el--;
+      continue;
+    }
+
+    if (strcasecmp(label, "named") == 0) {
+      if (NULL != (errPtr = ProcessDNSHosts(val))) {
+        snprintf(errBuf, errBufLen, "%s %s at line %d", modulePrefix, errPtr, line_num);
+        return errBuf;
+      }
+      line_info->line[0][i] = NULL;
+      line_info->num_el--;
+      continue;
+    }
+  }
+
+  if (!ats_is_ip(&m_servers.x_server_ip[0].sa)) {
+    snprintf(errBuf, errBufLen, "%s No server specified in splitdns.config at line %d", modulePrefix, line_num);
+    return errBuf;
+  }
+
+  DNSHandler *dnsH = new DNSHandler;
+  ink_res_state res = new ts_imp_res_state;
+
+  memset(res, 0, sizeof(ts_imp_res_state));
+  if ((-1 == ink_res_init(res, m_servers.x_server_ip, m_dnsSrvr_cnt,
+                          m_servers.x_def_domain, m_servers.x_domain_srch_list, NULL))) {
+    char ab[INET6_ADDRPORTSTRLEN];
+    snprintf(errBuf, errBufLen,
+      "Failed to build res record for the servers %s ...",
+      ats_ip_ntop(&m_servers.x_server_ip[0].sa, ab, sizeof ab)
+    );
+    return errBuf;
+  }
+
+  dnsH->m_res = res;
+  dnsH->mutex = SplitDNSConfig::dnsHandler_mutex;
+  dnsH->options = res->options;
+  ats_ip_invalidate(&dnsH->ip.sa); // Mark to use default DNS.
+
+  m_servers.x_dnsH = dnsH;
+
+  SET_CONTINUATION_HANDLER(dnsH, &DNSHandler::startEvent_sdns);
+  (eventProcessor.eventthread[ET_DNS][0])->schedule_imm(dnsH);
+
+  /* -----------------------------------------------------
+     Process any modifiers to the directive, if they exist
+     ----------------------------------------------------- */
+  if (line_info->num_el > 0) {
+    tmp = ProcessModifiers(line_info);
+    if (tmp != NULL) {
+      snprintf(errBuf, errBufLen, "%s %s at line %d in splitdns.config", modulePrefix, tmp, line_num);
+      return errBuf;
+    }
+  }
+
+  if (errBuf)
+    ats_free(errBuf);
+
+  return NULL;
+}
+
+
+/* --------------------------------------------------------------
+    SplitDNSRecord::UpdateMatch()
+   -------------------------------------------------------------- */
+void
+SplitDNSRecord::UpdateMatch(SplitDNSResult * result, RequestData * /* rdata ATS_UNUSED */)
+{
+  int last_number = result->m_line_number;
+
+  if ((last_number<0) || (last_number> this->line_num)) {
+    result->m_rec = this;
+    result->m_line_number = this->line_num;
+
+    Debug("splitdns_config", "Matched with %p dns node from line %d", this, this->line_num);
+  }
+}
+
+
+/* --------------------------------------------------------------
+    SplitDNSRecord::Print()
+   -------------------------------------------------------------- */
+void
+SplitDNSRecord::Print()
+{
+  for (int i = 0; i < m_dnsSrvr_cnt; i++) {
+    char ab[INET6_ADDRPORTSTRLEN];
+    Debug("splitdns_config", " %s ", ats_ip_ntop(&m_servers.x_server_ip[i].sa, ab, sizeof ab));
+  }
+}
+
+
+void
+ink_split_dns_init(ModuleVersion v)
+{
+  static int init_called = 0;
+
+  ink_release_assert(!checkModuleVersion(v, SPLITDNS_MODULE_VERSION));
+  if (init_called)
+    return;
+
+  init_called = 1;
+}
+
+#endif // SPLIT_DNS
diff --git a/iocore/dns/test_I_DNS.cc b/iocore/dns/test_I_DNS.cc
new file mode 100644
index 00000000..e1434d9f
--- /dev/null
+++ b/iocore/dns/test_I_DNS.cc
@@ -0,0 +1,138 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include "I_DNS.h"
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+//#define USE_SOCKS
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i, e;
+  char *p, *dt, *at;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+main()
+{
+  init_diags("net_test", NULL);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+
+  signal(SIGPIPE, SIG_IGN);
+  eventProcessor.start(2);
+  netProcessor.start();
+
+  printf("hello world\n");
+
+  dnsProcessor.start();
+  this_ethread()->execute();
+}
diff --git a/iocore/dns/test_P_DNS.cc b/iocore/dns/test_P_DNS.cc
new file mode 100644
index 00000000..93438dd1
--- /dev/null
+++ b/iocore/dns/test_P_DNS.cc
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_DNS.h"
+
+Diags *diags;
+struct NetTesterSM:public Continuation
+{
+  VIO *read_vio;
+  IOBufferReader *reader;
+  NetVConnection *vc;
+  MIOBuffer *buf;
+
+    NetTesterSM(ProxyMutex * _mutex, NetVConnection * _vc):Continuation(_mutex)
+  {
+    MUTEX_TRY_LOCK(lock, mutex, _vc->thread);
+    ink_release_assert(lock);
+    vc = _vc;
+    SET_HANDLER(&NetTesterSM::handle_read);
+    buf = new_MIOBuffer(8);
+    reader = buf->alloc_reader();
+    read_vio = vc->do_io_read(this, INT64_MAX, buf);
+  }
+
+
+  int handle_read(int event, void *data)
+  {
+    int r;
+    char *str;
+    switch (event) {
+    case VC_EVENT_READ_READY:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      printf("%s", str);
+      fflush(stdout);
+      break;
+    case VC_EVENT_READ_COMPLETE:
+      /* FALLSTHROUGH */
+    case VC_EVENT_EOS:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      printf("%s", str);
+      fflush(stdout);
+    case VC_EVENT_ERROR:
+      vc->do_io_close();
+      // fixme
+      // handle timeout events
+      break;
+    default:
+      ink_release_assert(!"unknown event");
+
+    }
+    return EVENT_CONT;
+  }
+
+
+};
+
+main()
+{
+}
diff --git a/iocore/eventsystem/EventSystem.cc b/iocore/eventsystem/EventSystem.cc
new file mode 100644
index 00000000..be6063a7
--- /dev/null
+++ b/iocore/eventsystem/EventSystem.cc
@@ -0,0 +1,48 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   EventSystem.cc --
+
+
+****************************************************************************/
+
+#include "P_EventSystem.h"
+
+void
+ink_event_system_init(ModuleVersion v)
+{
+  ink_release_assert(!checkModuleVersion(v, EVENT_SYSTEM_MODULE_VERSION));
+  int config_max_iobuffer_size = DEFAULT_MAX_BUFFER_SIZE;
+
+  REC_EstablishStaticConfigInt32(thread_freelist_size, "proxy.config.allocator.thread_freelist_size");
+  REC_ReadConfigInteger(config_max_iobuffer_size, "proxy.config.io.max_buffer_size");
+
+  max_iobuffer_size = buffer_size_to_index(config_max_iobuffer_size, DEFAULT_BUFFER_SIZES - 1);
+  if (default_small_iobuffer_size > max_iobuffer_size)
+    default_small_iobuffer_size = max_iobuffer_size;
+  if (default_large_iobuffer_size > max_iobuffer_size)
+    default_large_iobuffer_size = max_iobuffer_size;
+  init_buffer_allocators();
+}
diff --git a/iocore/eventsystem/IOBuffer.cc b/iocore/eventsystem/IOBuffer.cc
new file mode 100644
index 00000000..879e8ba9
--- /dev/null
+++ b/iocore/eventsystem/IOBuffer.cc
@@ -0,0 +1,269 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  UIOBuffer.cc
+
+**************************************************************************/
+#include "P_EventSystem.h"
+
+//
+// General Buffer Allocator
+//
+inkcoreapi Allocator ioBufAllocator[DEFAULT_BUFFER_SIZES];
+inkcoreapi ClassAllocator<MIOBuffer> ioAllocator("ioAllocator", DEFAULT_BUFFER_NUMBER);
+inkcoreapi ClassAllocator<IOBufferData> ioDataAllocator("ioDataAllocator", DEFAULT_BUFFER_NUMBER);
+inkcoreapi ClassAllocator<IOBufferBlock> ioBlockAllocator("ioBlockAllocator", DEFAULT_BUFFER_NUMBER);
+int64_t default_large_iobuffer_size = DEFAULT_LARGE_BUFFER_SIZE;
+int64_t default_small_iobuffer_size = DEFAULT_SMALL_BUFFER_SIZE;
+int64_t max_iobuffer_size = DEFAULT_BUFFER_SIZES - 1;
+
+//
+// Initialization
+//
+void
+init_buffer_allocators()
+{
+  char *name;
+
+  for (int i = 0; i < DEFAULT_BUFFER_SIZES; i++) {
+    int64_t s = DEFAULT_BUFFER_BASE_SIZE * (((int64_t)1) << i);
+    int64_t a = DEFAULT_BUFFER_ALIGNMENT;
+    int n = i <= default_large_iobuffer_size ? DEFAULT_BUFFER_NUMBER : DEFAULT_HUGE_BUFFER_NUMBER;
+    if (s < a)
+      a = s;
+
+    name = new char[64];
+    snprintf(name, 64, "ioBufAllocator[%d]", i);
+    ioBufAllocator[i].re_init(name, s, n, a);
+  }
+}
+
+int64_t
+MIOBuffer::remove_append(IOBufferReader * r)
+{
+  int64_t l = 0;
+  while (r->block) {
+    Ptr<IOBufferBlock> b = r->block;
+    r->block = r->block->next;
+    b->_start += r->start_offset;
+    if (b->start() >= b->end()) {
+      r->start_offset = -r->start_offset;
+      continue;
+    }
+    r->start_offset = 0;
+    l += b->read_avail();
+    append_block(b);
+  }
+  r->mbuf->_writer = NULL;
+  return l;
+}
+
+int64_t
+MIOBuffer::write(const void *abuf, int64_t alen)
+{
+  const char *buf = (const char*)abuf;
+  int64_t len = alen;
+  while (len) {
+    if (!_writer)
+      add_block();
+    int64_t f = _writer->write_avail();
+    f = f < len ? f : len;
+    if (f > 0) {
+      ::memcpy(_writer->end(), buf, f);
+      _writer->fill(f);
+      buf += f;
+      len -= f;
+    }
+    if (len) {
+      if (!_writer->next)
+        add_block();
+      else
+        _writer = _writer->next;
+    }
+  }
+  return alen;
+}
+
+
+#ifdef WRITE_AND_TRANSFER
+  /*
+   * Same functionality as write but for the one small difference.
+   * The space available in the last block is taken from the original
+   * and this space becomes available to the copy.
+   *
+   */
+int64_t
+MIOBuffer::write_and_transfer_left_over_space(IOBufferReader * r, int64_t alen, int64_t offset)
+{
+  int64_t rval = write(r, alen, offset);
+  // reset the end markers of the original so that it cannot
+  // make use of the space in the current block
+  if (r->mbuf->_writer)
+    r->mbuf->_writer->_buf_end = r->mbuf->_writer->_end;
+  // reset the end marker of the clone so that it can make
+  // use of the space in the current block
+  if (_writer) {
+    _writer->_buf_end = _writer->data->data() + _writer->block_size();
+  }
+  return rval;
+}
+
+#endif
+
+
+int64_t
+MIOBuffer::write(IOBufferReader * r, int64_t alen, int64_t offset)
+{
+  int64_t len = alen;
+  IOBufferBlock *b = r->block;
+  offset += r->start_offset;
+
+  while (b && len > 0) {
+    int64_t max_bytes = b->read_avail();
+    max_bytes -= offset;
+    if (max_bytes <= 0) {
+      offset = -max_bytes;
+      b = b->next;
+      continue;
+    }
+    int64_t bytes;
+    if (len<0 || len>= max_bytes)
+      bytes = max_bytes;
+    else
+      bytes = len;
+    IOBufferBlock *bb = b->clone();
+    bb->_start += offset;
+    bb->_buf_end = bb->_end = bb->_start + bytes;
+    append_block(bb);
+    offset = 0;
+    len -= bytes;
+    b = b->next;
+  }
+  return alen - len;
+}
+
+int64_t
+MIOBuffer::puts(char *s, int64_t len)
+{
+  char *pc = end();
+  char *pb = s;
+  while (pc < buf_end()) {
+    if (len-- <= 0)
+      return -1;
+    if (!*pb || *pb == '\n') {
+      int64_t n = (int64_t) (pb - s);
+      memcpy(end(), s, n + 1);  // Upto and including '\n'
+      end()[n + 1] = 0;
+      fill(n + 1);
+      return n + 1;
+    }
+    pc++;
+    pb++;
+  }
+  return 0;
+}
+
+int64_t
+IOBufferReader::read(void *ab, int64_t len)
+{
+  char *b = (char*)ab;
+  int64_t max_bytes = read_avail();
+  int64_t bytes = len <= max_bytes ? len : max_bytes;
+  int64_t n = bytes;
+
+  while (n) {
+    int64_t l = block_read_avail();
+    if (n < l)
+      l = n;
+    ::memcpy(b, start(), l);
+    consume(l);
+    b += l;
+    n -= l;
+  }
+  return bytes;
+}
+
+// TODO: I don't think this method is used anywhere, so perhaps get rid of it ?
+int64_t
+IOBufferReader::memchr(char c, int64_t len, int64_t offset)
+{
+  IOBufferBlock *b = block;
+  offset += start_offset;
+  int64_t o = offset;
+
+  while (b && len) {
+    int64_t max_bytes = b->read_avail();
+    max_bytes -= offset;
+    if (max_bytes <= 0) {
+      offset = -max_bytes;
+      b = b->next;
+      continue;
+    }
+    int64_t bytes;
+    if (len<0 || len>= max_bytes)
+      bytes = max_bytes;
+    else
+      bytes = len;
+    char *s = b->start() + offset;
+    char *p = (char *) ::memchr(s, c, bytes);
+    if (p)
+      return (int64_t) (o - start_offset + p - s);
+    o += bytes;
+    len -= bytes;
+    b = b->next;
+    offset = 0;
+  }
+
+  return -1;
+}
+
+char *
+IOBufferReader::memcpy(const void *ap, int64_t len, int64_t offset)
+{
+  char *p = (char*)ap;
+  IOBufferBlock *b = block;
+  offset += start_offset;
+
+  while (b && len) {
+    int64_t max_bytes = b->read_avail();
+    max_bytes -= offset;
+    if (max_bytes <= 0) {
+      offset = -max_bytes;
+      b = b->next;
+      continue;
+    }
+    int64_t bytes;
+    if (len<0 || len>= max_bytes)
+      bytes = max_bytes;
+    else
+      bytes = len;
+    ::memcpy(p, b->start() + offset, bytes);
+    p += bytes;
+    len -= bytes;
+    b = b->next;
+    offset = 0;
+  }
+
+  return p;
+}
diff --git a/iocore/eventsystem/I_Action.h b/iocore/eventsystem/I_Action.h
new file mode 100644
index 00000000..8f256a80
--- /dev/null
+++ b/iocore/eventsystem/I_Action.h
@@ -0,0 +1,213 @@
+/** @file
+
+  Generic interface which enables any event or async activity to be cancelled
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef _I_Action_h_
+#define _I_Action_h_
+
+#include "libts.h"
+#include "I_Thread.h"
+#include "I_Continuation.h"
+
+/**
+  Represents an operation initiated on a Processor.
+
+  The Action class is an abstract representation of an operation
+  being executed by some Processor. A reference to an Action object
+  allows you to cancel an ongoing asynchronous operation before it
+  completes. This means that the Continuation specified for the
+  operation will not be called back.
+
+  Actions or classes derived from Action are the typical return
+  type of methods exposed by Processors in the Event System and
+  throughout the IO Core libraries.
+
+  The canceller of an action must be the state machine that will
+  be called back by the task and that state machine's lock must be
+  held while calling cancel.
+
+  Processor implementers:
+
+  You must ensure that no events are sent to the state machine after
+  the operation has been cancelled appropriately.
+
+  Returning an Action:
+
+  Processor functions that are asynchronous must return actions to
+  allow the calling state machine to cancel the task before completion.
+  Because some processor functions are reentrant, they can call
+  back the state machine before the returning from the call that
+  creates the actions. To handle this case, special values are
+  returned in place of an action to indicate to the state machine
+  that the action is already completed.
+
+    - @b ACTION_RESULT_DONE The processor has completed the task
+      and called the state machine back inline.
+    - @b ACTION_RESULT_INLINE Not currently used.
+    - @b ACTION_RESULT_IO_ERROR Not currently used.
+
+  To make matters more complicated, it's possible if the result is
+  ACTION_RESULT_DONE that state machine deallocated itself on the
+  reentrant callback. Thus, state machine implementers MUST either
+  use a scheme to never deallocate their machines on reentrant
+  callbacks OR immediately check the returned action when creating
+  an asynchronous task and if it is ACTION_RESULT_DONE neither read
+  nor write any state variables. With either method, it's imperative
+  that the returned action always be checked for special values and
+  the value handled accordingly.
+
+  Allocation policy:
+
+  Actions are allocated by the Processor performing the actions.
+  It is the processor's responsbility to handle deallocation once
+  the action is complete or cancelled. A state machine MUST NOT
+  access an action once the operation that returned the Action has
+  completed or it has cancelled the Action.
+
+*/
+class Action
+{
+
+public:
+
+  /**
+    Contination that initiated this action.
+
+    The reference to the initiating continuation is only used to
+    verify that the action is being cancelled by the correct
+    continuation.  This field should not be accesed or modified
+    directly by the state machine.
+
+  */
+  Continuation * continuation;
+
+
+  /**
+    Reference to the Continuation's lock.
+
+    Keeps a reference to the Continuation's lock to preserve the
+    access to the cancelled field valid even when the state machine
+    has been deallocated. This field should not be accesed or
+    modified directly by the state machine.
+
+  */
+  Ptr<ProxyMutex> mutex;
+
+  /**
+    Internal flag used to indicate whether the action has been
+    cancelled.
+
+    This flag is set after a call to cancel or cancel_action and
+    it should not be accesed or modified directly by the state
+    machine.
+
+  */
+  volatile int cancelled;
+
+  /**
+    Cancels the asynchronous operation represented by this action.
+
+    This method is called by state machines willing to cancel an
+    ongoing asynchronous operation. Classes derived from Action may
+    perform additional steps before flagging this action as cancelled.
+    There are certain rules that must be followed in order to cancel
+    an action (see the Remarks section).
+
+    @param c Continuation associated with this Action.
+
+  */
+  virtual void cancel(Continuation * c = NULL) {
+    ink_assert(!c || c == continuation);
+#ifdef DEBUG
+    ink_assert(!cancelled);
+    cancelled = true;
+#else
+    if (!cancelled)
+      cancelled = true;
+#endif
+  }
+
+  /**
+    Cancels the asynchronous operation represented by this action.
+
+    This method is called by state machines willing to cancel an
+    ongoing asynchronous operation. There are certain rules that
+    must be followed in order to cancel an action (see the Remarks
+    section).
+
+    @param c Continuation associated with this Action.
+
+  */
+  void cancel_action(Continuation * c = NULL) {
+    ink_assert(!c || c == continuation);
+#ifdef DEBUG
+    ink_assert(!cancelled);
+    cancelled = true;
+#else
+    if (!cancelled)
+      cancelled = true;
+#endif
+  }
+
+  Continuation *operator =(Continuation * acont)
+  {
+    continuation = acont;
+    if (acont)
+      mutex = acont->mutex;
+    else
+      mutex = 0;
+    return acont;
+  }
+
+  /**
+    Constructor of the Action object. Processor implementers are
+    responsible for associating this action with the proper
+    Continuation.
+
+  */
+Action():continuation(NULL), cancelled(false) {
+  }
+
+#if defined(__GNUC__)
+  virtual ~ Action() {
+  }
+#endif
+};
+
+#define ACTION_RESULT_NONE           MAKE_ACTION_RESULT(0)
+#define ACTION_RESULT_DONE           MAKE_ACTION_RESULT(1)
+#define ACTION_IO_ERROR              MAKE_ACTION_RESULT(2)
+#define ACTION_RESULT_INLINE         MAKE_ACTION_RESULT(3)
+
+// Use these classes by
+// #define ACTION_RESULT_HOST_DB_OFFLINE
+//   MAKE_ACTION_RESULT(ACTION_RESULT_HOST_DB_BASE + 0)
+
+#define MAKE_ACTION_RESULT(_x) (Action*)(((uintptr_t)((_x<<1)+1)))
+
+#define ACTION_RESULT(_x) \
+  (int)((((uintptr_t)_x)&1)!=0?(((uintptr_t)>>1):(uintptr_t)0))
+
+#define IS_ACTION_RESULT(_x) ((((uintptr_t)_x)&1) != 0)
+
+#endif /*_Action_h_*/
diff --git a/iocore/eventsystem/I_Continuation.h b/iocore/eventsystem/I_Continuation.h
new file mode 100644
index 00000000..1de095b3
--- /dev/null
+++ b/iocore/eventsystem/I_Continuation.h
@@ -0,0 +1,200 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Continuations have a handleEvent() method to invoke them. Users
+  can determine the behavior of a Continuation by suppling a
+  "ContinuationHandler" (member function name) which is invoked
+  when events arrive. This function can be changed with the
+  "setHandler" method.
+
+  Continuations can be subclassed to add additional state and
+  methods.
+
+ */
+
+#ifndef _I_Continuation_h_
+#define _I_Continuation_h_
+
+#include "libts.h"
+#include "I_Lock.h"
+
+class Continuation;
+class ContinuationQueue;
+class Processor;
+class ProxyMutex;
+class EThread;
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  Constants and Type Definitions
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#define CONTINUATION_EVENT_NONE      0
+
+#define CONTINUATION_DONE            0
+#define CONTINUATION_CONT            1
+
+typedef int (Continuation::*ContinuationHandler) (int event, void *data);
+
+class force_VFPT_to_top
+{
+public:
+  virtual ~force_VFPT_to_top()
+  {
+  }
+};
+
+/**
+  Base class for all state machines to receive notification of
+  events.
+
+  The Continuation class represents the main abstraction mechanism
+  used throughout the IO Core Event System to communicate its users
+  the occurrence of an event. A Continuation is a lightweight data
+  structure that implements a single method with which the user is
+  called back.
+
+  Continuations are typically subclassed in order to implement
+  event-driven state machines. By including additional state and
+  methods, continuations can combine state with control flow, and
+  they are generally used to support split-phase, event-driven
+  control flow.
+
+  Given the multithreaded nature of the Event System, every
+  continuation carries a reference to a ProxyMutex object to protect
+  its state and ensure atomic operations. This ProxyMutex object
+  must be allocated by continuation-derived classes or by clients
+  of the IO Core Event System and it is required as a parameter to
+  the Continuation's class constructor.
+
+*/
+
+class Continuation: private force_VFPT_to_top
+{
+public:
+
+  /**
+    The current continuation handler function.
+
+    The current handler should not be set directly. In order to
+    change it, first aquire the Continuation's lock and then use
+    the SET_HANDLER macro which takes care of the type casting
+    issues.
+
+  */
+  ContinuationHandler handler;
+
+#ifdef DEBUG
+  const char *handler_name;
+#endif
+
+  /**
+    The Contination's lock.
+
+    A reference counted pointer to the Continuation's lock. This
+    lock is initialized in the constructor and should not be set
+    directly.
+
+  */
+  Ptr<ProxyMutex> mutex;
+
+  /**
+    Link to other continuations.
+
+    A doubly-linked element to allow Lists of Continuations to be
+    assembled.
+
+  */
+  LINK(Continuation, link);
+
+  /**
+    Receives the event code and data for an Event.
+
+    This function receives the event code and data for an event and
+    forwards them to the current continuation handler. The processor
+    calling back the continuation is responsible for acquiring its
+    lock.
+
+    @param event Event code to be passed at callback (Processor specific).
+    @param data General purpose data related to the event code (Processor specific).
+    @return State machine and processor specific return code.
+
+  */
+  int handleEvent(int event = CONTINUATION_EVENT_NONE, void *data = 0) {
+    return (this->*handler) (event, data);
+  }
+
+  /**
+    Contructor of the Continuation object. It should not be used
+    directly. Instead create an object of a derived type.
+
+    @param amutex Lock to be set for this Continuation.
+
+  */
+  Continuation(ProxyMutex * amutex = NULL);
+};
+
+/**
+  Sets the Continuation's handler. The preferred mechanism for
+  setting the Continuation's handler.
+
+  @param _h Pointer to the function used to callback with events.
+
+*/
+#ifdef DEBUG
+#define SET_HANDLER(_h) \
+  (handler = ((ContinuationHandler)_h),handler_name = #_h)
+#else
+#define SET_HANDLER(_h) \
+  (handler = ((ContinuationHandler)_h))
+#endif
+
+/**
+  Sets a Continuation's handler.
+
+  The preferred mechanism for setting the Continuation's handler.
+
+  @param _c Pointer to a Continuation whose handler is being set.
+  @param _h Pointer to the function used to callback with events.
+
+*/
+#ifdef DEBUG
+#define SET_CONTINUATION_HANDLER(_c,_h) \
+  (_c->handler = ((ContinuationHandler) _h),_c->handler_name = #_h)
+#else
+#define SET_CONTINUATION_HANDLER(_c,_h) \
+  (_c->handler = ((ContinuationHandler) _h))
+#endif
+
+inline
+Continuation::Continuation(ProxyMutex * amutex)
+  : handler(NULL),
+#ifdef DEBUG
+    handler_name(NULL),
+#endif
+             mutex(amutex)
+{ }
+
+#endif /*_Continuation_h_*/
diff --git a/iocore/eventsystem/I_EThread.h b/iocore/eventsystem/I_EThread.h
new file mode 100644
index 00000000..c1e07ab5
--- /dev/null
+++ b/iocore/eventsystem/I_EThread.h
@@ -0,0 +1,346 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef _EThread_h_
+#define _EThread_h_
+
+#include "libts.h"
+#include "I_Thread.h"
+#include "I_PriorityEventQueue.h"
+#include "I_ProtectedQueue.h"
+
+// TODO: This would be much nicer to have "run-time" configurable (or something),
+// perhaps based on proxy.config.stat_api.max_stats_allowed or other configs. XXX
+#define PER_THREAD_DATA (1024*1024)
+
+// This is not used by the cache anymore, it uses proxy.config.cache.mutex_retry_delay
+// instead.
+#define MUTEX_RETRY_DELAY HRTIME_MSECONDS(20)
+
+/** Maximum number of accept events per thread. */
+#define MAX_ACCEPT_EVENTS 20
+
+struct DiskHandler;
+struct EventIO;
+
+class SessionBucket;
+class Event;
+class Continuation;
+
+enum ThreadType {
+  REGULAR = 0,
+  MONITOR,
+  DEDICATED
+};
+
+
+/**
+  Event System specific type of thread.
+
+  The EThread class is the type of thread created and managed by
+  the Event System. It is one of the available interfaces for
+  schedulling events in the event system (another two are the Event
+  and EventProcessor classes).
+
+  In order to handle events, each EThread object has two event
+  queues, one external and one internal. The external queue is
+  provided for users of the EThread (clients) to append events to
+  that particular thread. Since it can be accessed by other threads
+  at the same time, operations using it must proceed in an atomic
+  fashion.
+
+  The internal queue, in the other hand, is used exclusively by the
+  EThread to process timed events within a certain time frame. These
+  events are queued internally and they may come from the external
+  queue as well.
+
+  Scheduling Interface:
+
+  There are eight schedulling functions provided by EThread and
+  they are a wrapper around their counterparts in EventProcessor.
+
+  @see EventProcessor
+  @see Event
+
+*/
+class EThread: public Thread
+{
+public:
+  /*-------------------------------------------------------*\
+  |  Common Interface                                       |
+  \*-------------------------------------------------------*/
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    as soon as possible.
+
+    Forwards to the EventProcessor the schedule of the callback to
+    the continuation 'c' as soon as possible. The event is assigned
+    to EThread.
+
+    @param c Continuation to be called back as soon as possible.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the the EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return Reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_imm(Continuation *c, int callback_event = EVENT_IMMEDIATE, void *cookie = NULL);
+  Event *schedule_imm_signal(Continuation *c, int callback_event = EVENT_IMMEDIATE, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    at the given timeout.
+
+    Forwards the request to the EventProcessor to schedule the
+    callback to the continuation 'c' at the time specified in
+    'atimeout_at'. The event is assigned to this EThread.
+
+    @param c Continuation to be called back at the time specified
+      in 'atimeout_at'.
+    @param atimeout_at Time value at which to callback.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_at(Continuation *c,
+                     ink_hrtime atimeout_at, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    after the timeout elapses.
+
+    Instructs the EventProcessor to schedule the callback to the
+    continuation 'c' after the time specified in atimeout_in elapses.
+    The event is assigned to this EThread.
+
+    @param c Continuation to be called back after the timeout elapses.
+    @param atimeout_in Amount of time after which to callback.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_in(Continuation *c,
+                     ink_hrtime atimeout_in, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    periodically.
+
+    Schedules the callback to the continuation 'c' in the EventProcessor
+    to occur every time 'aperiod' elapses. It is scheduled on this
+    EThread.
+
+    @param c Continuation to call back everytime 'aperiod' elapses.
+    @param aperiod Duration of the time period between callbacks.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the Remarks section in the
+      EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_every(Continuation *c, ink_hrtime aperiod, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    as soon as possible.
+
+    Schedules the callback to the continuation 'c' as soon as
+    possible. The event is assigned to this EThread.
+
+    @param c Continuation to be called back as soon as possible.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_imm_local(Continuation *c, int callback_event = EVENT_IMMEDIATE, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    at the given timeout.
+
+    Schedules the callback to the continuation 'c' at the time
+    specified in 'atimeout_at'. The event is assigned to this
+    EThread.
+
+    @param c Continuation to be called back at the time specified
+      in 'atimeout_at'.
+    @param atimeout_at Time value at which to callback.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_at_local(Continuation *c,
+                           ink_hrtime atimeout_at, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    after the timeout elapses.
+
+    Schedules the callback to the continuation 'c' after the time
+    specified in atimeout_in elapses. The event is assigned to this
+    EThread.
+
+    @param c Continuation to be called back after the timeout elapses.
+    @param atimeout_in Amount of time after which to callback.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the Remarks section in the
+      EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_in_local(Continuation *c,
+                           ink_hrtime atimeout_in, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on this EThread to receive an event
+    periodically.
+
+    Schedules the callback to the continuation 'c' to occur every
+    time 'aperiod' elapses. It is scheduled on this EThread.
+
+    @param c Continuation to call back everytime 'aperiod' elapses.
+    @param aperiod Duration of the time period between callbacks.
+    @param callback_event Event code to be passed back to the
+      continuation's handler. See the Remarks section in the
+      EventProcessor class.
+    @param cookie User-defined value or pointer to be passed back
+      in the Event's object cookie field.
+    @return A reference to an Event object representing the schedulling
+      of this callback.
+
+  */
+  Event *schedule_every_local(Continuation *c,
+                              ink_hrtime aperiod, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /* private */
+
+  Event *schedule_local(Event *e);
+
+  InkRand generator;
+
+private:
+  // prevent unauthorized copies (Not implemented)
+  EThread(const EThread &);
+  EThread & operator =(const EThread &);
+
+  /*-------------------------------------------------------*\
+  |  UNIX Interface                                         |
+  \*-------------------------------------------------------*/
+
+public:
+  EThread();
+  EThread(ThreadType att, int anid);
+  EThread(ThreadType att, Event *e, ink_sem *sem);
+  virtual ~EThread();
+
+  Event *schedule_spawn(Continuation *cont);
+  Event *schedule(Event *e, bool fast_signal = false);
+
+  /** Block of memory to allocate thread specific data e.g. stat system arrays. */
+  char thread_private[PER_THREAD_DATA];
+
+  /** Private Data for the Disk Processor. */
+  DiskHandler *diskHandler;
+
+  /** Private Data for AIO. */
+  Que(Continuation, link) aio_ops;
+
+  ProtectedQueue EventQueueExternal;
+  PriorityEventQueue EventQueue;
+
+  EThread **ethreads_to_be_signalled;
+  int n_ethreads_to_be_signalled;
+
+  Event *accept_event[MAX_ACCEPT_EVENTS];
+  int main_accept_index;
+
+  int id;
+  unsigned int event_types;
+  bool is_event_type(EventType et);
+  void set_event_type(EventType et);
+
+  // Private Interface
+
+  void execute();
+  void process_event(Event *e, int calling_code);
+  void free_event(Event *e);
+  void (*signal_hook)(EThread *);
+
+#if HAVE_EVENTFD
+  int evfd;
+#else
+  int evpipe[2];
+#endif
+  EventIO *ep;
+
+  ThreadType tt;
+  Event *oneevent;              // For dedicated event thread
+  ink_sem *eventsem;            // For dedicated event thread
+
+  SessionBucket* l1_hash;
+};
+
+/**
+  This is used so that we dont use up operator new(size_t, void *)
+  which users might want to define for themselves.
+
+*/
+class ink_dummy_for_new
+{
+};
+
+inline void *operator
+new(size_t, ink_dummy_for_new *p)
+{
+  return (void *) p;
+}
+#define ETHREAD_GET_PTR(thread, offset) ((void*)((char*)(thread)+(offset)))
+
+extern EThread *this_ethread();
+#endif /*_EThread_h_*/
diff --git a/iocore/eventsystem/I_Event.h b/iocore/eventsystem/I_Event.h
new file mode 100644
index 00000000..797e3130
--- /dev/null
+++ b/iocore/eventsystem/I_Event.h
@@ -0,0 +1,285 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef _Event_h_
+#define _Event_h_
+
+#include "libts.h"
+#include "I_Action.h"
+
+//
+//  Defines
+//
+
+#define MAX_EVENTS_PER_THREAD     100000
+
+// Events
+
+#define EVENT_NONE                CONTINUATION_EVENT_NONE       // 0
+#define EVENT_IMMEDIATE           1
+#define EVENT_INTERVAL            2
+#define EVENT_ERROR               3
+#define EVENT_CALL                4     // used internally in state machines
+#define EVENT_POLL                5     // negative event; activated on poll or epoll
+
+// Event callback return functions
+
+#define EVENT_DONE                CONTINUATION_DONE     // 0
+#define EVENT_CONT                CONTINUATION_CONT     // 1
+#define EVENT_RETURN              5
+#define EVENT_RESTART             6
+#define EVENT_RESTART_DELAYED     7
+
+// Event numbers block allocation
+// ** ALL NEW EVENT TYPES SHOULD BE ALLOCATED FROM BLOCKS LISTED HERE! **
+
+#define VC_EVENT_EVENTS_START                     100
+#define NET_EVENT_EVENTS_START                    200
+#define DISK_EVENT_EVENTS_START                   300
+#define CLUSTER_EVENT_EVENTS_START                400
+#define HOSTDB_EVENT_EVENTS_START                 500
+#define DNS_EVENT_EVENTS_START                    600
+#define CONFIG_EVENT_EVENTS_START                 800
+#define LOG_EVENT_EVENTS_START	                  900
+#define MULTI_CACHE_EVENT_EVENTS_START            1000
+#define CACHE_EVENT_EVENTS_START                  1100
+#define CACHE_DIRECTORY_EVENT_EVENTS_START        1200
+#define CACHE_DB_EVENT_EVENTS_START               1300
+#define HTTP_NET_CONNECTION_EVENT_EVENTS_START    1400
+#define HTTP_NET_VCONNECTION_EVENT_EVENTS_START   1500
+#define GC_EVENT_EVENTS_START                     1600
+#define ICP_EVENT_EVENTS_START                    1800
+#define TRANSFORM_EVENTS_START                    2000
+#define STAT_PAGES_EVENTS_START                   2100
+#define HTTP_SESSION_EVENTS_START                 2200
+#define HTTP_TUNNEL_EVENTS_START                  2300
+#define HTTP_SCH_UPDATE_EVENTS_START              2400
+#define NT_ASYNC_CONNECT_EVENT_EVENTS_START       3000
+#define NT_ASYNC_IO_EVENT_EVENTS_START            3100
+#define RAFT_EVENT_EVENTS_START                   3200
+#define SIMPLE_EVENT_EVENTS_START                 3300
+#define UPDATE_EVENT_EVENTS_START                 3500
+#define LOG_COLLATION_EVENT_EVENTS_START          3800
+#define AIO_EVENT_EVENTS_START                    3900
+#define BLOCK_CACHE_EVENT_EVENTS_START            4000
+#define UTILS_EVENT_EVENTS_START                  5000
+#define CONGESTION_EVENT_EVENTS_START             5100
+#define INK_API_EVENT_EVENTS_START                60000
+#define SRV_EVENT_EVENTS_START	                  62000
+#define REMAP_EVENT_EVENTS_START                  63000
+
+//define misc events here
+#define ONE_WAY_TUNNEL_EVENT_PEER_CLOSE (SIMPLE_EVENT_EVENTS_START+1)
+#define PREFETCH_EVENT_SEND_URL         (SIMPLE_EVENT_EVENTS_START+2)
+
+typedef int EventType;
+const int ET_CALL = 0;
+const int MAX_EVENT_TYPES = 8; // conservative, these are dynamically allocated
+
+class EThread;
+
+/**
+  A type of Action returned by the EventProcessor. The Event class
+  is the type of Action returned by the EventProcessor as a result
+  of scheduling an operation. Unlike asynchronous operations
+  represented by actions, events never call reentrantly.
+
+  Besides being able to cancel an event (because it is an action),
+  you can also reschedule it once received.
+
+  <b>Remarks</b>
+
+  When reschedulling an event through any of the Event class
+  schedulling fuctions, state machines must not make these calls
+  in other thread other than the one that called them back. They
+  also must have acquired the continuation's lock before calling
+  any of the schedulling functions.
+
+  The rules for cancelling an event are the same as those for
+  actions:
+
+  The canceller of an event must be the state machine that will be
+  called back by the task and that state machine's lock must be
+  held while calling cancel. Any reference to that event object
+  (ie. pointer) held by the state machine must not be used after
+  the cancellation.
+
+  Event Codes:
+
+  At the completion of an event, state machines use the event code
+  passed in through the Continuation's handler function to distinguish
+  the type of event and handle the data parameter accordingly. State
+  machine implementers should be careful when defining the event
+  codes since they can impact on other state machines presents. For
+  this reason, this numbers are usually allocated from a common
+  pool.
+
+  Time values:
+
+  The schedulling functions use a time parameter typed as ink_hrtime
+  for specifying the timeouts or periods. This is a nanosecond value
+  supported by libts and you should use the time functions and
+  macros defined in ink_hrtime.h.
+
+  The difference between the timeout specified for schedule_at and
+  schedule_in is that in the former it is an absolute value of time
+  that is expected to be in the future where in the latter it is
+  an amount of time to add to the current time (obtained with
+  ink_get_hrtime).
+
+*/
+class Event:public Action
+{
+public:
+
+  ///////////////////////////////////////////////////////////
+  // Common Interface                                      //
+  ///////////////////////////////////////////////////////////
+
+  /**
+     Reschedules this event immediately. Instructs the event object
+     to reschedule itself as soon as possible in the EventProcessor.
+
+     @param callback_event Event code to return at the completion
+      of this event. See the Remarks section.
+
+  */
+  void schedule_imm(int callback_event = EVENT_IMMEDIATE);
+
+  /**
+     Reschedules this event to callback at time 'atimeout_at'.
+     Instructs the event object to reschedule itself at the time
+     specified in atimeout_at on the EventProcessor.
+
+     @param atimeout_at Time at which to callcallback. See the Remarks section.
+     @param callback_event Event code to return at the completion of this event. See the Remarks section.
+
+  */
+  void schedule_at(ink_hrtime atimeout_at, int callback_event = EVENT_INTERVAL);
+
+  /**
+     Reschedules this event to callback at time 'atimeout_at'.
+     Instructs the event object to reschedule itself at the time
+     specified in atimeout_at on the EventProcessor.
+
+     @param atimeout_in Time at which to callcallback. See the Remarks section.
+     @param callback_event Event code to return at the completion of this event. See the Remarks section.
+
+  */
+  void schedule_in(ink_hrtime atimeout_in, int callback_event = EVENT_INTERVAL);
+
+  /**
+     Reschedules this event to callback every 'aperiod'. Instructs
+     the event object to reschedule itself to callback every 'aperiod'
+     from now.
+
+     @param aperiod Time period at which to callcallback. See the Remarks section.
+     @param callback_event Event code to return at the completion of this event. See the Remarks section.
+
+  */
+  void schedule_every(ink_hrtime aperiod, int callback_event = EVENT_INTERVAL);
+
+  // inherited from Action::cancel
+  // virtual void cancel(Continuation * c = NULL);
+
+  void free();
+
+  EThread *ethread;
+
+  unsigned int in_the_prot_queue:1;
+  unsigned int in_the_priority_queue:1;
+  unsigned int immediate:1;
+  unsigned int globally_allocated:1;
+  unsigned int in_heap:4;
+  int callback_event;
+
+  ink_hrtime timeout_at;
+  ink_hrtime period;
+
+  /**
+    This field can be set when an event is created. It is returned
+    as part of the Event structure to the continuation when handleEvent
+    is called.
+
+  */
+  void *cookie;
+
+  // Private
+
+  Event();
+
+
+  Event *init(Continuation * c, ink_hrtime atimeout_at = 0, ink_hrtime aperiod = 0);
+
+#ifdef ENABLE_TIME_TRACE
+  ink_hrtime start_time;
+#endif
+
+private:
+  void *operator  new(size_t size);     // use the fast allocators
+
+private:
+  // prevent unauthorized copies (Not implemented)
+    Event(const Event &);
+    Event & operator =(const Event &);
+
+public:
+  LINK(Event, link);
+
+  /*-------------------------------------------------------*\
+  | UNIX/non-NT Interface                                   |
+  \*-------------------------------------------------------*/
+
+#ifdef ONLY_USED_FOR_FIB_AND_BIN_HEAP
+  void *node_pointer;
+  void set_node_pointer(void *x)
+  {
+    node_pointer = x;
+  }
+  void *get_node_pointer()
+  {
+    return node_pointer;
+  }
+#endif
+
+#if defined(__GNUC__)
+  virtual ~ Event() {
+  }
+#endif
+};
+
+//
+// Event Allocator
+//
+extern ClassAllocator<Event> eventAllocator;
+
+#define EVENT_ALLOC(_a, _t) THREAD_ALLOC(_a, _t)
+#define EVENT_FREE(_p, _a, _t)   \
+  _p->mutex = NULL;              \
+  if (_p->globally_allocated)    \
+    ::_a.free(_p);               \
+  else                           \
+    THREAD_FREE(_p, _a, _t)
+
+#endif /*_Event_h_*/
diff --git a/iocore/eventsystem/I_EventProcessor.h b/iocore/eventsystem/I_EventProcessor.h
new file mode 100644
index 00000000..2820e9ba
--- /dev/null
+++ b/iocore/eventsystem/I_EventProcessor.h
@@ -0,0 +1,324 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_EventProcessor_h_
+#define _I_EventProcessor_h_
+
+#include "libts.h"
+#include "I_Continuation.h"
+#include "I_Processor.h"
+#include "I_Event.h"
+
+#ifdef TS_MAX_THREADS_IN_EACH_THREAD_TYPE
+const int MAX_THREADS_IN_EACH_TYPE = TS_MAX_THREADS_IN_EACH_THREAD_TYPE;
+#else
+const int MAX_THREADS_IN_EACH_TYPE = 3072;
+#endif
+
+#ifdef TS_MAX_NUMBER_EVENT_THREADS
+const int MAX_EVENT_THREADS = TS_MAX_NUMBER_EVENT_THREADS;
+#else
+const int MAX_EVENT_THREADS = 4096;
+#endif
+
+class EThread;
+
+/**
+  Main processor for the Event System. The EventProcessor is the core
+  component of the Event System. Once started, it is responsible for
+  creating and managing groups of threads that execute user-defined
+  tasks asynchronously at a given time or periodically.
+
+  The EventProcessor provides a set of scheduling functions through
+  which you can specify continuations to be called back by one of its
+  threads. These function calls do not block. Instead they return an
+  Event object and schedule the callback to the continuation passed in at
+  a later or specific time, as soon as possible or at certain intervals.
+
+  Singleton model:
+
+  Every executable that imports and statically links against the
+  EventSystem library is provided with a global instance of the
+  EventProcessor called eventProcessor. Therefore, it is not necessary to
+  create instances of the EventProcessor class because it was designed
+  as a singleton. It is important to note that none of its functions
+  are reentrant.
+
+  Thread Groups (Event types):
+
+  When the EventProcessor is started, the first group of threads is
+  spawned and it is assigned the special id ET_CALL. Depending on the
+  complexity of the state machine or protocol, you may be interested
+  in creating additional threads and the EventProcessor gives you the
+  ability to create a single thread or an entire group of threads. In
+  the former case, you call spawn_thread and the thread is independent
+  of the thread groups and it exists as long as your continuation handle
+  executes and there are events to process. In the latter, you call
+  spawn_event_theads which creates a new thread group and you get an id
+  or event type with wich you must keep for use later on when scheduling
+  continuations on that group.
+
+  Callback event codes:
+
+  @b UNIX: For all of the scheduling functions, the callback_event
+  parameter is not used. On a callback, the event code passed in to
+  the continuation handler is always EVENT_IMMEDIATE.
+
+  @b NT: The value of the event code passed in to the continuation
+  handler is the value provided in the callback_event parameter.
+
+  Event allocation policy:
+
+  Events are allocated and deallocated by the EventProcessor. A state
+  machine may access the returned, non-recurring event until it is
+  cancelled or the callback from the event is complete. For recurring
+  events, the Event may be accessed until it is cancelled. Once the event
+  is complete or cancelled, it's the eventProcessor's responsibility to
+  deallocate it.
+
+*/
+class EventProcessor:public Processor
+{
+public:
+
+  /**
+    Spawn an additional thread for calling back the continuation. Spawns
+    a dedicated thread (EThread) that calls back the continuation passed
+    in as soon as possible.
+
+    @param cont continuation that the spawn thread will call back
+      immediately.
+    @param sem Event semaphore assigned to the thread.
+    @return event object representing the start of the thread.
+
+  */
+  Event *spawn_thread(Continuation * cont, const char *thr_name, size_t stacksize = 0, ink_sem * sem = NULL);
+
+  /**
+    Spawns a group of threads for an event type. Spawns the number of
+    event threads passed in (n_threads) creating a thread group and
+    returns the thread group id (or EventType). See the remarks section
+    for Thread Groups.
+
+    @return EventType or thread id for the new group of threads.
+
+  */
+  EventType spawn_event_threads(int n_threads, const char* et_name, size_t stacksize);
+
+
+  /**
+    Schedules the continuation on a specific EThread to receive an event
+    at the given timeout.  Requests the EventProcessor to schedule
+    the callback to the continuation 'c' at the time specified in
+    'atimeout_at'. The event is assigned to the specified EThread.
+
+    @param c Continuation to be called back at the time specified in
+      'atimeout_at'.
+    @param atimeout_at time value at which to callback.
+    @param ethread EThread on which to schedule the event.
+    @param callback_event code to be passed back to the continuation's
+      handler. See the Remarks section.
+    @param cookie user-defined value or pointer to be passed back in
+      the Event's object cookie field.
+    @return reference to an Event object representing the scheduling
+      of this callback.
+
+  */
+  Event *schedule_imm(Continuation * c,
+                      EventType event_type = ET_CALL, int callback_event = EVENT_IMMEDIATE, void *cookie = NULL);
+  /*
+    provides the same functionality as schedule_imm and also signals the thread immediately
+  */
+  Event *schedule_imm_signal(Continuation * c,
+                      EventType event_type = ET_CALL, int callback_event = EVENT_IMMEDIATE, void *cookie = NULL);
+  /**
+    Schedules the continuation on a specific thread group to receive an
+    event at the given timeout. Requests the EventProcessor to schedule
+    the callback to the continuation 'c' at the time specified in
+    'atimeout_at'. The callback is handled by a thread in the specified
+    thread group (event_type).
+
+    @param c Continuation to be called back at the time specified in
+      'atimeout_at'.
+    @param atimeout_at Time value at which to callback.
+    @param event_type thread group id (or event type) specifying the
+      group of threads on which to schedule the callback.
+    @param callback_event code to be passed back to the continuation's
+      handler. See the Remarks section.
+    @param cookie user-defined value or pointer to be passed back in
+      the Event's object cookie field.
+    @return reference to an Event object representing the scheduling of
+      this callback.
+
+  */
+  Event *schedule_at(Continuation * c,
+                     ink_hrtime atimeout_at,
+                     EventType event_type = ET_CALL, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on a specific thread group to receive an
+    event after the specified timeout elapses. Requests the EventProcessor
+    to schedule the callback to the continuation 'c' after the time
+    specified in 'atimeout_in' elapses. The callback is handled by a
+    thread in the specified thread group (event_type).
+
+    @param c Continuation to call back aftert the timeout elapses.
+    @param atimeout_in amount of time after which to callback.
+    @param event_type Thread group id (or event type) specifying the
+      group of threads on which to schedule the callback.
+    @param callback_event code to be passed back to the continuation's
+      handler. See the Remarks section.
+    @param cookie user-defined value or pointer to be passed back in
+      the Event's object cookie field.
+    @return reference to an Event object representing the scheduling of
+      this callback.
+
+  */
+  Event *schedule_in(Continuation * c,
+                     ink_hrtime atimeout_in,
+                     EventType event_type = ET_CALL, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+  /**
+    Schedules the continuation on a specific thread group to receive
+    an event periodically. Requests the EventProcessor to schedule the
+    callback to the continuation 'c' everytime 'aperiod' elapses. The
+    callback is handled by a thread in the specified thread group
+    (event_type).
+
+    @param c Continuation to call back everytime 'aperiod' elapses.
+    @param aperiod duration of the time period between callbacks.
+    @param event_type thread group id (or event type) specifying the
+      group of threads on which to schedule the callback.
+    @param callback_event code to be passed back to the continuation's
+      handler. See the Remarks section.
+    @param cookie user-defined value or pointer to be passed back in
+      the Event's object cookie field.
+    @return reference to an Event object representing the scheduling of
+      this callback.
+
+  */
+  Event *schedule_every(Continuation * c,
+                        ink_hrtime aperiod,
+                        EventType event_type = ET_CALL, int callback_event = EVENT_INTERVAL, void *cookie = NULL);
+
+
+  ////////////////////////////////////////////
+  // reschedule an already scheduled event. //
+  // may be called directly or called by    //
+  // schedule_xxx Event member functions.   //
+  // The returned value may be different    //
+  // from the argument e.                   //
+  ////////////////////////////////////////////
+
+  Event *reschedule_imm(Event * e, int callback_event = EVENT_IMMEDIATE);
+  Event *reschedule_at(Event * e, ink_hrtime atimeout_at, int callback_event = EVENT_INTERVAL);
+  Event *reschedule_in(Event * e, ink_hrtime atimeout_in, int callback_event = EVENT_INTERVAL);
+  Event *reschedule_every(Event * e, ink_hrtime aperiod, int callback_event = EVENT_INTERVAL);
+
+  EventProcessor();
+
+  /**
+    Initializes the EventProcessor and its associated threads. Spawns the
+    specified number of threads, initializes their state information and
+    sets them running. It creates the initial thread group, represented
+    by the event type ET_CALL.
+
+    @return 0 if successful, and a negative value otherwise.
+
+  */
+  int start(int n_net_threads, size_t stacksize=DEFAULT_STACKSIZE);
+
+  /**
+    Stop the EventProcessor. Attempts to stop the EventProcessor and
+    all of the threads in each of the thread groups.
+
+  */
+  virtual void shutdown();
+
+  /**
+    Allocates size bytes on the event threads. This function is thread
+    safe.
+
+    @param size bytes to be allocated.
+
+  */
+  off_t allocate(int size);
+
+  /**
+    An array of pointers to all of the EThreads handled by the
+    EventProcessor. An array of pointers to all of the EThreads created
+    throughout the existence of the EventProcessor instance.
+
+  */
+  EThread *all_ethreads[MAX_EVENT_THREADS];
+
+  /**
+    An array of pointers, organized by thread group, to all of the
+    EThreads handled by the EventProcessor. An array of pointers to all of
+    the EThreads created throughout the existence of the EventProcessor
+    instance. It is a two-dimensional array whose first dimension is the
+    thread group id and the second the EThread pointers for that group.
+
+  */
+  EThread *eventthread[MAX_EVENT_TYPES][MAX_THREADS_IN_EACH_TYPE];
+
+  unsigned int next_thread_for_type[MAX_EVENT_TYPES];
+  int n_threads_for_type[MAX_EVENT_TYPES];
+
+  /**
+    Total number of threads controlled by this EventProcessor.  This is
+    the count of all the EThreads spawn by this EventProcessor, excluding
+    those created by spawn_thread
+
+  */
+  int n_ethreads;
+
+  /**
+    Total number of thread groups created so far. This is the count of
+    all the thread groups (event types) created for this EventProcessor.
+
+  */
+  int n_thread_groups;
+
+private:
+  // prevent unauthorized copies (Not implemented)
+    EventProcessor(const EventProcessor &);
+    EventProcessor & operator =(const EventProcessor &);
+
+public:
+
+  /*------------------------------------------------------*\
+  | Unix & non NT Interface                                |
+  \*------------------------------------------------------*/
+
+  Event * schedule(Event * e, EventType etype, bool fast_signal = false);
+  EThread *assign_thread(EventType etype);
+
+  EThread *all_dthreads[MAX_EVENT_THREADS];
+  int n_dthreads;               // No. of dedicated threads
+  volatile int thread_data_used;
+};
+
+extern inkcoreapi class EventProcessor eventProcessor;
+
+#endif /*_EventProcessor_h_*/
diff --git a/iocore/eventsystem/I_EventSystem.h b/iocore/eventsystem/I_EventSystem.h
new file mode 100644
index 00000000..eb6da6e2
--- /dev/null
+++ b/iocore/eventsystem/I_EventSystem.h
@@ -0,0 +1,56 @@
+/** @file
+
+  Event subsystem
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef _I_EventSystem_h
+#define _I_EventSystem_h
+
+#include "libts.h"
+
+#include "I_IOBuffer.h"
+#include "I_Action.h"
+#include "I_Continuation.h"
+#include "I_EThread.h"
+#include "I_Event.h"
+#include "I_EventProcessor.h"
+
+#include "I_Lock.h"
+#include "I_PriorityEventQueue.h"
+#include "I_Processor.h"
+#include "I_ProtectedQueue.h"
+#include "I_Thread.h"
+#include "I_VIO.h"
+#include "I_VConnection.h"
+#include "I_RecProcess.h"
+#include "I_SocketManager.h"
+
+#define EVENT_SYSTEM_MODULE_MAJOR_VERSION 1
+#define EVENT_SYSTEM_MODULE_MINOR_VERSION 0
+#define EVENT_SYSTEM_MODULE_VERSION makeModuleVersion(                 \
+                                    EVENT_SYSTEM_MODULE_MAJOR_VERSION, \
+                                    EVENT_SYSTEM_MODULE_MINOR_VERSION, \
+                                    PUBLIC_MODULE_HEADER)
+
+void ink_event_system_init(ModuleVersion version);
+
+#endif
diff --git a/iocore/eventsystem/I_IOBuffer.h b/iocore/eventsystem/I_IOBuffer.h
new file mode 100644
index 00000000..0e5fe0c9
--- /dev/null
+++ b/iocore/eventsystem/I_IOBuffer.h
@@ -0,0 +1,1376 @@
+/** @file
+
+  I/O classes
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section watermark Watermark
+
+  Watermarks can be used as an interface between the data transferring
+  layer (VConnection) and the user layer (a state machine).  Watermarks
+  should be used when you need to have at least a certain amount of data
+  to make some determination.  For example, when parsing a string, one
+  might wish to ensure that an entire line will come in before consuming
+  the data.  In such a case, the water_mark should be set to the largest
+  possible size of the string. (appropriate error handling should take
+  care of exessively long strings).
+
+  In all other cases, especially when all data will be consumed, the
+  water_mark should be set to 0 (the default).
+
+ */
+
+#if !defined (I_IOBuffer_h)
+#define I_IOBuffer_h
+
+#include "libts.h"
+#include "ink_resource.h"
+
+struct MIOBufferAccessor;
+
+class MIOBuffer;
+class IOBufferReader;
+class VIO;
+
+// Removing this optimization since this is breaking WMT over HTTP
+//#define WRITE_AND_TRANSFER
+
+inkcoreapi extern int64_t max_iobuffer_size;
+extern int64_t default_small_iobuffer_size;
+extern int64_t default_large_iobuffer_size; // matched to size of OS buffers
+
+#if !defined(TRACK_BUFFER_USER)
+#define TRACK_BUFFER_USER 1
+#endif
+
+enum AllocType
+{
+  NO_ALLOC,
+  FAST_ALLOCATED,
+  XMALLOCED,
+  MEMALIGNED,
+  DEFAULT_ALLOC,
+  CONSTANT
+};
+
+#if TS_USE_RECLAIMABLE_FREELIST
+#define DEFAULT_BUFFER_NUMBER        64
+#else
+#define DEFAULT_BUFFER_NUMBER        128
+#endif
+#define DEFAULT_HUGE_BUFFER_NUMBER   32
+#define MAX_MIOBUFFER_READERS        5
+#define DEFAULT_BUFFER_ALIGNMENT     8192       // should be disk/page size
+#define DEFAULT_BUFFER_BASE_SIZE     128
+
+////////////////////////////////////////////////
+// These are defines so that code that used 2 //
+// for buffer size index when 2 was 2K will   //
+// still work if it uses BUFFER_SIZE_INDEX_2K //
+// instead.                                   //
+////////////////////////////////////////////////
+#define BUFFER_SIZE_INDEX_128           0
+#define BUFFER_SIZE_INDEX_256           1
+#define BUFFER_SIZE_INDEX_512           2
+#define BUFFER_SIZE_INDEX_1K            3
+#define BUFFER_SIZE_INDEX_2K            4
+#define BUFFER_SIZE_INDEX_4K            5
+#define BUFFER_SIZE_INDEX_8K            6
+#define BUFFER_SIZE_INDEX_16K           7
+#define BUFFER_SIZE_INDEX_32K           8
+#define BUFFER_SIZE_INDEX_64K           9
+#define BUFFER_SIZE_INDEX_128K          10
+#define BUFFER_SIZE_INDEX_256K          11
+#define BUFFER_SIZE_INDEX_512K          12
+#define BUFFER_SIZE_INDEX_1M            13
+#define BUFFER_SIZE_INDEX_2M            14
+#define MAX_BUFFER_SIZE_INDEX           14
+#define DEFAULT_BUFFER_SIZES            (MAX_BUFFER_SIZE_INDEX+1)
+
+#define BUFFER_SIZE_FOR_INDEX(_i)    (DEFAULT_BUFFER_BASE_SIZE * (1 << (_i)))
+#define DEFAULT_SMALL_BUFFER_SIZE    BUFFER_SIZE_INDEX_512
+#define DEFAULT_LARGE_BUFFER_SIZE    BUFFER_SIZE_INDEX_4K
+#define DEFAULT_TS_BUFFER_SIZE       BUFFER_SIZE_INDEX_8K
+#define DEFAULT_MAX_BUFFER_SIZE      BUFFER_SIZE_FOR_INDEX(MAX_BUFFER_SIZE_INDEX)
+#define MIN_IOBUFFER_SIZE            BUFFER_SIZE_INDEX_128
+#define MAX_IOBUFFER_SIZE            (DEFAULT_BUFFER_SIZES-1)
+
+
+#define BUFFER_SIZE_ALLOCATED(_i)     \
+  (BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(_i) || \
+   BUFFER_SIZE_INDEX_IS_XMALLOCED(_i) )
+
+#define BUFFER_SIZE_NOT_ALLOCATED    DEFAULT_BUFFER_SIZES
+#define BUFFER_SIZE_INDEX_IS_XMALLOCED(_size_index) (_size_index < 0)
+#define BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(_size_index) \
+  (((uint64_t)_size_index) < DEFAULT_BUFFER_SIZES)
+#define BUFFER_SIZE_INDEX_IS_CONSTANT(_size_index) \
+  (_size_index >= DEFAULT_BUFFER_SIZES)
+
+#define BUFFER_SIZE_FOR_XMALLOC(_size) (-(_size))
+#define BUFFER_SIZE_INDEX_FOR_XMALLOC_SIZE(_size) (-(_size))
+
+#define BUFFER_SIZE_FOR_CONSTANT(_size) (_size - DEFAULT_BUFFER_SIZES)
+#define BUFFER_SIZE_INDEX_FOR_CONSTANT_SIZE(_size) (_size+DEFAULT_BUFFER_SIZES)
+
+inkcoreapi extern Allocator ioBufAllocator[DEFAULT_BUFFER_SIZES];
+
+void init_buffer_allocators();
+
+/**
+  A reference counted wrapper around fast allocated or malloced memory.
+  The IOBufferData class provides two basic services around a portion
+  of allocated memory.
+
+  First, it is a reference counted object and ...
+
+  @remarks The AllocType enum, is used to define the type of allocation
+  for the memory this IOBufferData object manages.
+
+  <table>
+    <tr>
+      <td align="center">AllocType</td>
+      <td align="center">Meaning</td>
+    </tr>
+    <tr>
+      <td>NO_ALLOC</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>FAST_ALLOCATED</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>XMALLOCED</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>MEMALIGNED</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>DEFAULT_ALLOC</td>
+      <td></td>
+    </tr>
+    <tr>
+      <td>CONSTANT</td>
+      <td></td>
+    </tr>
+  </table>
+
+ */
+class IOBufferData:public RefCountObj
+{
+public:
+
+  /**
+    The size of the memory allocated by this IOBufferData. Calculates
+    the amount of memory allocated by this IOBufferData.
+
+    @return number of bytes allocated for the '_data' member.
+
+  */
+  int64_t block_size();
+
+  /**
+    Frees the memory managed by this IOBufferData.  Deallocates the
+    memory previously allocated by this IOBufferData object. It frees
+    the memory pointed to by '_data' according to the '_mem_type' and
+    '_size_index' members.
+
+  */
+  void dealloc();
+
+  /**
+    Allocates memory and sets this IOBufferData to point to it.
+    Allocates memory according to the size_index and type
+    parameters. Any previously allocated memory pointed to by
+    this IOBufferData is deallocated.
+
+    @param size_index
+    @param type of allocation to use; see remarks section.
+  */
+  void alloc(int64_t size_index, AllocType type = DEFAULT_ALLOC);
+
+  /**
+    Provides access to the allocated memory. Returns the address of the
+    allocated memory handled by this IOBufferData.
+
+    @return address of the memory handled by this IOBufferData.
+
+  */
+  char *data()
+  {
+    return _data;
+  }
+
+  /**
+    Cast operator. Provided as a convenience, the cast to a char* applied
+    to the IOBufferData returns the address of the memory handled by the
+    IOBuffer data. In this manner, objects of this class can be used as
+    parameter to functions requiring a char*.
+
+  */
+  operator  char *()
+  {
+    return _data;
+  }
+
+  /**
+    Frees the IOBufferData object and its underlying memory. Deallocates
+    the memory managed by this IOBufferData and then frees itself. You
+    should not use this object or reference after this call.
+
+  */
+  virtual void free();
+
+  int64_t _size_index;
+
+  /**
+    Type of allocation used for the managed memory. Stores the type of
+    allocation used for the memory currently managed by the IOBufferData
+    object. Do not set or modify this value directly. Instead use the
+    alloc or dealloc methods.
+
+  */
+  AllocType _mem_type;
+
+  /**
+    Points to the allocated memory. This member stores the address of
+    the allocated memory. You should not modify its value directly,
+    instead use the alloc or dealloc methods.
+
+  */
+  char *_data;
+
+#ifdef TRACK_BUFFER_USER
+  const char *_location;
+#endif
+
+  /**
+    Constructor. Initializes state for a IOBufferData object. Do not use
+    this method. Use one of the functions with the 'new_' prefix instead.
+
+  */
+  IOBufferData()
+:  _size_index(BUFFER_SIZE_NOT_ALLOCATED), _mem_type(NO_ALLOC), _data(NULL)
+#ifdef TRACK_BUFFER_USER
+    , _location(NULL)
+#endif
+  {
+  }
+
+private:
+  // declaration only
+  IOBufferData(const IOBufferData &);
+  IOBufferData & operator =(const IOBufferData &);
+};
+
+inkcoreapi extern ClassAllocator<IOBufferData> ioDataAllocator;
+
+/**
+  A linkable portion of IOBufferData. IOBufferBlock is a chainable
+  buffer block descriptor. The IOBufferBlock represents both the used
+  and available space in the underlying block. The IOBufferBlock is not
+  sharable between buffers but rather represents what part of the data
+  block is both in use and usable by the MIOBuffer it is attached to.
+
+*/
+class IOBufferBlock:public RefCountObj
+{
+public:
+  /**
+    Access the actual data. Provides access to rhe underlying data
+    managed by the IOBufferData.
+
+    @return pointer to the underlying data.
+
+  */
+  char *buf()
+  {
+    return data->_data;
+  }
+
+  /**
+    Beginning of the inuse section. Returns the position in the buffer
+    where the inuse area begins.
+
+    @return pointer to the start of the inuse section.
+
+  */
+  char *start()
+  {
+    return _start;
+  }
+
+  /**
+    End of the used space. Returns a pointer to end of the used space
+    in the data buffer represented by this block.
+
+    @return pointer to the end of the inuse portion of the block.
+
+  */
+  char *end()
+  {
+    return _end;
+  }
+
+  /**
+    End of the data buffer. Returns a pointer to end of the data buffer
+    represented by this block.
+
+  */
+  char *buf_end()
+  {
+    return _buf_end;
+  }
+
+  /**
+    Size of the inuse area. Returns the size of the current inuse area.
+
+    @return bytes occupied by the inuse area.
+
+  */
+  int64_t size()
+  {
+    return (int64_t) (_end - _start);
+  }
+
+  /**
+    Size of the data available for reading. Returns the size of the data
+    available for reading in the inuse area.
+
+    @return bytes available for reading from the inuse area.
+
+  */
+  int64_t read_avail()
+  {
+    return (int64_t) (_end - _start);
+  }
+
+  /**
+    Space available in the buffer. Returns the number of bytes that can
+    be written to the data buffer.
+
+    @return space available for writing in this IOBufferBlock.
+  */
+  int64_t write_avail()
+  {
+    return (int64_t) (_buf_end - _end);
+  }
+
+  /**
+    Size of the memory allocated by the underlying IOBufferData.
+    Computes the size of the entire block, which includes the used and
+    available areas. It is the memory allocated by the IOBufferData
+    referenced by this IOBufferBlock.
+
+    @return bytes allocated to the IOBufferData referenced by this
+      IOBufferBlock.
+
+  */
+  int64_t block_size()
+  {
+    return data->block_size();
+  }
+
+  /**
+    Decrease the size of the inuse area. Moves forward the start of
+    the inuse area. This also decreases the number of available bytes
+    for reading.
+
+    @param len bytes to consume or positions to skip for the start of
+      the inuse area.
+
+  */
+  void consume(int64_t len);
+
+  /**
+    Increase the inuse area of the block. Adds 'len' bytes to the inuse
+    area of the block. Data should be copied into the data buffer by
+    using end() to find the start of the free space in the data buffer
+    before calling fill()
+
+    @param len bytes to increase the inuse area. It must be less than
+      or equal to the value of write_avail().
+
+  */
+  void fill(int64_t len);
+
+  /**
+    Reset the inuse area. The start and end of the inuse area are reset
+    but the actual IOBufferData referenced by this IOBufferBlock is not
+    modified.  This effectively reduces the number of bytes available
+    for reading to zero, and the number of bytes available for writing
+    to the size of the entire buffer.
+
+  */
+  void reset();
+
+  /**
+    Create a copy of the IOBufferBlock. Creates and returns a copy of this
+    IOBufferBlock that references the same data that this IOBufferBlock
+    (it does not allocate an another buffer). The cloned block will not
+    have a writable space since the original IOBufferBlock mantains the
+    ownership for writing data to the block.
+
+    @return copy of this IOBufferBlock.
+
+  */
+  IOBufferBlock *clone();
+
+  /**
+    Clear the IOBufferData this IOBufferBlock handles. Clears this
+    IOBufferBlock's reference to the data buffer (IOBufferData). You can
+    use alloc after this call to allocate an IOBufferData associated to
+    this IOBufferBlock.
+
+  */
+  void clear();
+
+  /**
+    Allocate a data buffer. Allocates a data buffer for this IOBufferBlock
+    based on index 'i'.  Index values are described in the remarks
+    section in MIOBuffer.
+
+  */
+  void alloc(int64_t i = default_large_iobuffer_size);
+
+  /**
+    Clear the IOBufferData this IOBufferBlock handles. Clears this
+    IOBufferBlock's reference to the data buffer (IOBufferData).
+
+  */
+  void dealloc();
+
+  /**
+    Set or replace this IOBufferBlock's IOBufferData member. Sets this
+    IOBufferBlock's IOBufferData member to point to the IOBufferData
+    passed in. You can optionally specify the inuse area with the 'len'
+    argument and an offset for the start.
+
+    @param d new IOBufferData this IOBufferBlock references.
+    @param len in use area to set. It must be less than or equal to the
+      length of the block size *IOBufferData).
+    @param offset bytes to skip from the beginning of the IOBufferData
+      and to mark its start.
+
+  */
+  void set(IOBufferData * d, int64_t len = 0, int64_t offset = 0);
+  void set_internal(void *b, int64_t len, int64_t asize_index);
+  void realloc_set_internal(void *b, int64_t buf_size, int64_t asize_index);
+  void realloc(void *b, int64_t buf_size);
+  void realloc(int64_t i);
+  void realloc_xmalloc(void *b, int64_t buf_size);
+  void realloc_xmalloc(int64_t buf_size);
+
+  /**
+    Frees the IOBufferBlock object and its underlying memory.
+    Removes the reference to the IOBufferData object and then frees
+    itself. You should not use this object or reference after this
+    call.
+
+  */
+  virtual void free();
+
+  char *_start;
+  char *_end;
+  char *_buf_end;
+
+#ifdef TRACK_BUFFER_USER
+  const char *_location;
+#endif
+
+  /**
+    The underlying reference to the allocated memory. A reference to a
+    IOBufferData representing the memory allocated to this buffer. Do
+    not set or modify its value directly.
+
+  */
+  Ptr<IOBufferData> data;
+
+  /**
+    Reference to another IOBufferBlock. A reference to another
+    IOBufferBlock that allows this object to link to other.
+
+  */
+  Ptr<IOBufferBlock> next;
+
+  /**
+    Constructor of a IOBufferBlock. Do not use it to create a new object,
+    instead call new_IOBufferBlock
+
+  */
+  IOBufferBlock();
+
+private:
+  IOBufferBlock(const IOBufferBlock &);
+  IOBufferBlock & operator =(const IOBufferBlock &);
+};
+
+extern inkcoreapi ClassAllocator<IOBufferBlock> ioBlockAllocator;
+
+/**
+  An independent reader from an MIOBuffer. A reader for a set of
+  IOBufferBlocks. The IOBufferReader represents the place where a given
+  consumer of buffer data is reading from. It provides a uniform interface
+  for easily accessing the data contained in a list of IOBufferBlocks
+  associated with the IOBufferReader.
+
+  IOBufferReaders are the abstraction that determine when data blocks
+  can be removed from the buffer.
+
+*/
+class IOBufferReader
+{
+public:
+
+  /**
+    Start of unconsumed data. Returns a pointer to first unconsumed data
+    on the buffer for this reader. A null pointer indicates no data is
+    available. It uses the current start_offset value.
+
+    @return pointer to the start of the unconsumed data.
+
+  */
+  char *start();
+
+  /**
+    End of inuse area of the first block with unconsumed data. Returns a
+    pointer to the end of the first block with unconsumed data for this
+    reader. A NULL pointer indicates there are no blocks with unconsumed
+    data for this reader.
+
+    @return pointer to the end of the first block with unconsumed data.
+
+  */
+  char *end();
+
+  /**
+    Amount of data available across all of the IOBufferBlocks. Returns the
+    number of unconsumed bytes of data available to this reader across
+    all remaining IOBufferBlocks. It subtracts the current start_offset
+    value from the total.
+
+    @return bytes of data available across all the buffers.
+
+  */
+  int64_t read_avail();
+
+  /** Check if there is more than @a size bytes available to read.
+      @return @c true if more than @a size byte are available.
+  */
+  bool is_read_avail_more_than(int64_t size);
+
+
+  /**
+    Number of IOBufferBlocks with data in the block list. Returns the
+    number of IOBufferBlocks on the block list with data remaining for
+    this reader.
+
+    @return number of blocks with data for this reader.
+
+  */
+  int block_count();
+
+  /**
+    Amount of data available in the first buffer with data for this
+    reader.  Returns the number of unconsumed bytes of data available
+    on the first IOBufferBlock with data for this reader.
+
+    @return number of unconsumed bytes of data available in the first
+      buffer.
+
+  */
+  int64_t block_read_avail();
+
+  void skip_empty_blocks();
+
+  /**
+    Clears all fields in this IOBuffeReader, rendering it unusable. Drops
+    the reference to the IOBufferBlock list, the accesor, MIOBuffer and
+    resets this reader's state. You have to set those fields in order
+    to use this object again.
+
+  */
+  void clear();
+
+  /**
+    Instruct the reader to reset the IOBufferBlock list. Resets the
+    reader to the point to the start of the block where new data will
+    be written. After this call, the start_offset field is set to zero
+    and the list of IOBufferBlocks is set using the associated MIOBuffer.
+
+  */
+  void reset();
+
+  /**
+    Consume a number of bytes from this reader's IOBufferBlock
+    list. Advances the current position in the IOBufferBlock list of
+    this reader by n bytes.
+
+    @param n number of bytes to consume. It must be less than or equal
+      to read_avail().
+
+  */
+  void consume(int64_t n);
+
+  /**
+    Create another reader with access to the same data as this
+    IOBufferReader. Allocates a new reader with the same state as this
+    IOBufferReader. This means that the new reader will point to the same
+    list of IOBufferBlocks and to the same buffer position as this reader.
+
+    @return new reader with the same state as this.
+
+  */
+  IOBufferReader *clone();
+
+  /**
+    Deallocate this reader. Removes and deallocates this reader from
+    the underlying MIOBuffer. This IOBufferReader object must not be
+    used after this call.
+
+  */
+  void dealloc();
+
+  /**
+    Get a pointer to the first block with data. Returns a pointer to
+    the first IOBufferBlock in the block chain with data available for
+    this reader
+
+    @return pointer to the first IOBufferBlock in the list with data
+      available for this reader.
+
+  */
+  IOBufferBlock *get_current_block();
+
+  /**
+    Consult this reader's MIOBuffer writable space. Queries the MIOBuffer
+    associated with this reader about the amount of writable space
+    available without adding any blocks on the buffer and returns true
+    if it is less than the water mark.
+
+    @return true if the MIOBuffer associated with this IOBufferReader
+      returns true in MIOBuffer::current_low_water().
+
+  */
+  bool current_low_water();
+
+  /**
+    Queries the underlying MIOBuffer about. Returns true if the amount
+    of writable space after adding a block on the underlying MIOBuffer
+    is less than its water mark. This function call may add blocks to
+    the MIOBuffer (see MIOBuffer::low_water()).
+
+    @return result of MIOBuffer::low_water() on the MIOBuffer for
+      this reader.
+
+  */
+  bool low_water();
+
+  /**
+    To see if the amount of data available to the reader is greater than
+    the MIOBuffer's water mark. Indicates whether the amount of data
+    available to this reader exceeds the water mark for this reader's
+    MIOBuffer.
+
+    @return true if the amount of data exceeds the MIOBuffer's water mark.
+
+  */
+  bool high_water();
+
+  /**
+    Perform a memchr() across the list of IOBufferBlocks. Returns the
+    offset from the current start point of the reader to the first
+    occurence of character 'c' in the buffer.
+
+    @param c character to look for.
+    @param len number of characters to check. If len exceeds the number
+      of bytes available on the buffer or INT64_MAX is passed in, the
+      number of bytes available to the reader is used. It is independent
+      of the offset value.
+    @param offset number of the bytes to skip over before beginning
+      the operation.
+    @return -1 if c is not found, otherwise position of the first
+      ocurrence.
+
+  */
+  inkcoreapi int64_t memchr(char c, int64_t len = INT64_MAX, int64_t offset = 0);
+
+  /**
+    Copies and consumes data. Copies len bytes of data from the buffer
+    into the supplied buffer, which must be allocated prior to the call
+    and it must be at large enough for the requested bytes. Once the
+    data is copied, it consumed from the reader.
+
+    @param buf in which to place the data.
+    @param len bytes to copy and consume. If 'len' exceeds the bytes
+      available to the reader, the number of bytes available is used
+      instead.
+
+    @return number of bytes copied and consumed.
+
+  */
+  inkcoreapi int64_t read(void *buf, int64_t len);
+
+  /**
+    Copy data but do not consume it. Copies 'len' bytes of data from
+    the current buffer into the supplied buffer. The copy skips the
+    number of bytes specified by 'offset' beyond the current point of
+    the reader. It also takes into account the current start_offset value.
+
+    @param buf in which to place the data. The pointer is modified after
+      the call and points one position after the end of the data copied.
+    @param len bytes to copy. If len exceeds the bytes available to the
+      reader or INT64_MAX is passed in, the number of bytes available is
+      used instead. No data is consumed from the reader in this operation.
+    @param offset bytes to skip from the current position. The parameter
+      is modified after the call.
+    @return pointer to one position after the end of the data copied. The
+      parameter buf is set to this value also.
+
+  */
+  inkcoreapi char *memcpy(const void *buf, int64_t len = INT64_MAX, int64_t offset = 0);
+
+  /**
+    Subscript operator. Returns a reference to the character at the
+    specified position. You must ensure that it is within an appropriate
+    range.
+
+    @param i positions beyond the current point of the reader. It must
+      be less than the number of the bytes available to the reader.
+
+    @return reference to the character in that position.
+
+  */
+  char &operator[] (int64_t i);
+
+  MIOBuffer *writer() const { return mbuf; }
+  MIOBuffer *allocated() const { return mbuf; }
+
+  MIOBufferAccessor *accessor;  // pointer back to the accessor
+
+  /**
+    Back pointer to this object's MIOBuffer. A pointer back to the
+    MIOBuffer this reader is allocated from.
+
+  */
+  MIOBuffer *mbuf;
+  Ptr<IOBufferBlock> block;
+
+  /**
+    Offset beyond the shared start(). The start_offset is used in the
+    calls that copy or consume data and is an offset at the beginning
+    of the available data.
+
+  */
+  int64_t start_offset;
+  int64_t size_limit;
+
+  IOBufferReader()
+    : accessor(NULL), mbuf(NULL), start_offset(0), size_limit(INT64_MAX)
+  { }
+};
+
+/**
+  A multiple reader, single writer memory buffer. MIOBuffers are at
+  the center of all IOCore data transfer. MIOBuffers are the data
+  buffers used to transfer data to and from VConnections. A MIOBuffer
+  points to a list of IOBufferBlocks which in turn point to IOBufferData
+  structures that in turn point to the actual data. MIOBuffer allows one
+  producer and multiple consumers. The buffer fills up according the
+  amount of data outstanding for the slowest consumer. Thus, MIOBuffer
+  implements automatic flow control between readers of different speeds.
+  Data on IOBuffer is immutable. Once written it cannot be modified, only
+  deallocated once all consumers have finished with it. Immutability is
+  necessary since data can be shared between buffers, which means that
+  multiple IOBufferBlock objects may reference the same data but only
+  one will have ownership for writing.
+
+*/
+class MIOBuffer
+{
+public:
+
+  /**
+    Increase writer's inuse area. Instructs the writer associated with
+    this MIOBuffer to increase the inuse area of the block by as much as
+    'len' bytes.
+
+    @param len number of bytes to add to the inuse area of the block.
+
+  */
+  void fill(int64_t len);
+
+  /**
+    Adds a block to the end of the block list. The block added to list
+    must be writable by this buffer and must not be writable by any
+    other buffer.
+
+  */
+  void append_block(IOBufferBlock * b);
+
+  /**
+    Adds a new block to the end of the block list. The size is determined
+    by asize_index. See the remarks section for a mapping of indexes to
+    buffer block sizes.
+
+  */
+  void append_block(int64_t asize_index);
+
+  /**
+    Adds new block to the end of block list using the block size for
+    the buffer specified when the buffer was allocated.
+
+  */
+  void add_block();
+
+  /**
+    Adds by reference len bytes of data pointed to by b to the end
+    of the buffer.  b MUST be a pointer to the beginning of  block
+    allocated from the ats_xmalloc() routine. The data will be deallocated
+    by the buffer once all readers on the buffer have consumed it.
+
+  */
+  void append_xmalloced(void *b, int64_t len);
+
+  /**
+    Adds by reference len bytes of data pointed to by b to the end of the
+    buffer. b MUST be a pointer to the beginning of  block allocated from
+    ioBufAllocator of the corresponding index for fast_size_index. The
+    data will be deallocated by the buffer once all readers on the buffer
+    have consumed it.
+
+  */
+  void append_fast_allocated(void *b, int64_t len, int64_t fast_size_index);
+
+  /**
+    Adds the nbytes worth of data pointed by rbuf to the buffer. The
+    data is copied into the buffer. write() does not respect watermarks
+    or buffer size limits. Users of write must implement their own flow
+    control. Returns the number of bytes added.
+
+  */
+  inkcoreapi int64_t write(const void *rbuf, int64_t nbytes);
+
+#ifdef WRITE_AND_TRANSFER
+  /**
+    Same functionality as write but for the one small difference. The
+    space available in the last block is taken from the original and
+    this space becomes available to the copy.
+
+  */
+  inkcoreapi int64_t write_and_transfer_left_over_space(IOBufferReader * r, int64_t len = INT64_MAX, int64_t offset = 0);
+#endif
+
+  /**
+    Add by data from IOBufferReader r to the this buffer by reference. If
+    len is INT64_MAX, all available data on the reader is added. If len is
+    less than INT64_MAX, the smaller of len or the amount of data on the
+    buffer is added. If offset is greater than zero, than the offset
+    bytes of data at the front of the reader are skipped. Bytes skipped
+    by offset reduce the number of bytes available on the reader used
+    in the amount of data to add computation. write() does not respect
+    watermarks or buffer size limits. Users of write must implement
+    their own flow control. Returns the number of bytes added. Each
+    write() call creates a new IOBufferBlock, even if it is for one
+    byte. As such, it's necessary to exercise caution in any code that
+    repeatedly transfers data from one buffer to another, especially if
+    the data is being read over the network as it may be coming in very
+    small chunks. Because deallocation of outstanding buffer blocks is
+    recursive, it's possible to overrun the stack if too many blocks
+    have been added to the buffer chain. It's imperative that users
+    both implement their own flow control to prevent too many bytes
+    from becoming outstanding on a buffer that the write() call is
+    being used and that care be taken to ensure the transfers are of a
+    minimum size. Should it be necessary to make a large number of small
+    transfers, it's preferable to use a interface that copies the data
+    rather than sharing blocks to prevent a build of blocks on the buffer.
+
+  */
+  inkcoreapi int64_t write(IOBufferReader * r, int64_t len = INT64_MAX, int64_t offset = 0);
+
+  int64_t remove_append(IOBufferReader *);
+
+  /**
+    Returns a pointer to the first writable block on the block chain.
+    Returns NULL if there are not currently any writable blocks on the
+    block list.
+
+  */
+  IOBufferBlock *first_write_block()
+  {
+    if (_writer) {
+      if (_writer->next && !_writer->write_avail())
+        return _writer->next;
+      ink_assert(!_writer->next || !_writer->next->read_avail());
+      return _writer;
+    } else
+        return NULL;
+  }
+
+
+  char *buf()
+  {
+    IOBufferBlock *b = first_write_block();
+    return b ? b->buf() : 0;
+  }
+  char *buf_end()
+  {
+    return first_write_block()->buf_end();
+  }
+  char *start()
+  {
+    return first_write_block()->start();
+  }
+  char *end()
+  {
+    return first_write_block()->end();
+  }
+
+  /**
+    Returns the amount of space of available for writing on the first
+    writable block on the block chain (the one that would be reutrned
+    by first_write_block()).
+
+  */
+  int64_t block_write_avail();
+
+  /**
+    Returns the amount of space of available for writing on all writable
+    blocks currently on the block chain.  Will NOT add blocks to the
+    block chain.
+
+  */
+  int64_t current_write_avail();
+
+  /**
+    Adds blocks for writing if the watermark criteria are met. Returns
+    the amount of space of available for writing on all writable blocks
+    on the block chain after a block due to the watermark criteria.
+
+  */
+  int64_t write_avail();
+
+  /**
+    Returns the default data block size for this buffer.
+
+  */
+  int64_t block_size();
+
+  /**
+    Returns the default data block size for this buffer.
+
+  */
+  int64_t total_size()
+  {
+    return block_size();
+  }
+
+  /**
+    Returns true if amount of the data outstanding on the buffer exceeds
+    the watermark.
+
+  */
+  bool high_water()
+  {
+    return max_read_avail() > water_mark;
+  }
+
+  /**
+    Returns true if the amount of writable space after adding a block on
+    the buffer is less than the water mark. Since this function relies
+    on write_avail() it may add blocks.
+
+  */
+  bool low_water()
+  {
+    return write_avail() <= water_mark;
+  }
+
+  /**
+    Returns true if amount the amount writable space without adding and
+    blocks on the buffer is less than the water mark.
+
+  */
+  bool current_low_water()
+  {
+    return current_write_avail() <= water_mark;
+  }
+  void set_size_index(int64_t size);
+
+  /**
+    Allocates a new IOBuffer reader and sets it's its 'accessor' field
+    to point to 'anAccessor'.
+
+  */
+  IOBufferReader *alloc_accessor(MIOBufferAccessor * anAccessor);
+
+  /**
+    Allocates an IOBufferReader for this buffer. IOBufferReaders hold
+    data on the buffer for different consumers. IOBufferReaders are
+    REQUIRED when using buffer. alloc_reader() MUST ONLY be a called
+    on newly allocated buffers. Calling on a buffer with data already
+    placed on it will result in the reader starting at an indeterminate
+    place on the buffer.
+
+  */
+  IOBufferReader *alloc_reader();
+
+  /**
+    Allocates a new reader on this buffer and places it's starting
+    point at the same place as reader r. r MUST be a pointer to a reader
+    previous allocated from this buffer.
+
+  */
+  IOBufferReader *clone_reader(IOBufferReader * r);
+
+  /**
+    Deallocates reader e from this buffer. e MUST be a pointer to a reader
+    previous allocated from this buffer. Reader need to allocated when a
+    particularly consumer is being removed from the buffer but the buffer
+    is still in use. Deallocation is not necessary when the buffer is
+    being freed as all outstanding readers are automatically deallocated.
+
+  */
+  void dealloc_reader(IOBufferReader * e);
+
+  /**
+    Deallocates all outstanding readers on the buffer.
+
+  */
+  void dealloc_all_readers();
+
+  void set(void *b, int64_t len);
+  void set_xmalloced(void *b, int64_t len);
+  void alloc(int64_t i = default_large_iobuffer_size);
+  void alloc_xmalloc(int64_t buf_size);
+  void append_block_internal(IOBufferBlock * b);
+  int64_t puts(char *buf, int64_t len);
+
+  // internal interface
+
+  bool empty()
+  {
+    return !_writer;
+  }
+  int64_t max_read_avail();
+
+  int max_block_count();
+  void check_add_block();
+
+  IOBufferBlock *get_current_block();
+
+  void reset()
+  {
+    if (_writer) {
+      _writer->reset();
+    }
+    for (int j = 0; j < MAX_MIOBUFFER_READERS; j++)
+      if (readers[j].allocated()) {
+        readers[j].reset();
+      }
+  }
+
+  void init_readers()
+  {
+    for (int j = 0; j < MAX_MIOBUFFER_READERS; j++)
+      if (readers[j].allocated() && !readers[j].block)
+        readers[j].block = _writer;
+  }
+
+  void dealloc()
+  {
+    _writer = NULL;
+    dealloc_all_readers();
+  }
+
+  void clear()
+  {
+    dealloc();
+    size_index = BUFFER_SIZE_NOT_ALLOCATED;
+    water_mark = 0;
+  }
+
+  void realloc(int64_t i)
+  {
+    _writer->realloc(i);
+  }
+  void realloc(void *b, int64_t buf_size)
+  {
+    _writer->realloc(b, buf_size);
+  }
+  void realloc_xmalloc(void *b, int64_t buf_size)
+  {
+    _writer->realloc_xmalloc(b, buf_size);
+  }
+  void realloc_xmalloc(int64_t buf_size)
+  {
+    _writer->realloc_xmalloc(buf_size);
+  }
+
+  int64_t size_index;
+
+  /**
+    Determines when to stop writing or reading. The watermark is the
+    level to which the producer (filler) is required to fill the buffer
+    before it can expect the reader to consume any data.  A watermark
+    of zero means that the reader will consume any amount of data,
+    no matter how small.
+
+  */
+  int64_t water_mark;
+
+  Ptr<IOBufferBlock> _writer;
+  IOBufferReader readers[MAX_MIOBUFFER_READERS];
+
+#ifdef TRACK_BUFFER_USER
+  const char *_location;
+#endif
+
+  MIOBuffer(void *b, int64_t bufsize, int64_t aWater_mark);
+  MIOBuffer(int64_t default_size_index);
+  MIOBuffer();
+  ~MIOBuffer();
+};
+
+/**
+  A wrapper for either a reader or a writer of an MIOBuffer.
+
+*/
+struct MIOBufferAccessor
+{
+  IOBufferReader * reader() {
+    return entry;
+  }
+
+  MIOBuffer * writer() {
+    return mbuf;
+  }
+
+  int64_t block_size() const {
+    return mbuf->block_size();
+  }
+
+  int64_t total_size() const {
+    return block_size();
+  }
+
+  void reader_for(IOBufferReader * abuf);
+  void reader_for(MIOBuffer * abuf);
+  void writer_for(MIOBuffer * abuf);
+
+  void clear() {
+    mbuf = NULL;
+    entry = NULL;
+  }
+
+  MIOBufferAccessor():
+#ifdef DEBUG
+    name(NULL),
+#endif
+    mbuf(NULL), entry(NULL)
+  {
+  }
+
+  ~MIOBufferAccessor();
+
+#ifdef DEBUG
+  const char * name;
+#endif
+
+private:
+  MIOBufferAccessor(const MIOBufferAccessor &);
+  MIOBufferAccessor & operator =(const MIOBufferAccessor &);
+
+  MIOBuffer *mbuf;
+  IOBufferReader *entry;
+
+};
+
+extern MIOBuffer * new_MIOBuffer_internal(
+#ifdef TRACK_BUFFER_USER
+                                          const char *loc,
+#endif
+                                          int64_t size_index = default_large_iobuffer_size);
+
+#ifdef TRACK_BUFFER_USER
+class MIOBuffer_tracker
+{
+  const char *loc;
+
+public:
+    MIOBuffer_tracker(const char *_loc):loc(_loc)
+  {
+  }
+  MIOBuffer *operator() (int64_t size_index = default_large_iobuffer_size) {
+    return new_MIOBuffer_internal(loc, size_index);
+  }
+
+};
+#endif
+
+extern MIOBuffer * new_empty_MIOBuffer_internal(
+#ifdef TRACK_BUFFER_USER
+  const char *loc,
+#endif
+  int64_t size_index = default_large_iobuffer_size);
+
+#ifdef TRACK_BUFFER_USER
+class Empty_MIOBuffer_tracker
+{
+  const char *loc;
+
+public:
+    Empty_MIOBuffer_tracker(const char *_loc):loc(_loc)
+  {
+  }
+  MIOBuffer *operator() (int64_t size_index = default_large_iobuffer_size) {
+    return new_empty_MIOBuffer_internal(loc, size_index);
+  }
+};
+#endif
+
+/// MIOBuffer allocator/deallocator
+#ifdef TRACK_BUFFER_USER
+#define new_MIOBuffer               MIOBuffer_tracker(RES_PATH("memory/IOBuffer/"))
+#define new_empty_MIOBuffer         Empty_MIOBuffer_tracker(RES_PATH("memory/IOBuffer/"))
+#else
+#define new_MIOBuffer               new_MIOBuffer_internal
+#define new_empty_MIOBuffer         new_empty_MIOBuffer_internal
+#endif
+extern void free_MIOBuffer(MIOBuffer * mio);
+//////////////////////////////////////////////////////////////////////
+
+extern IOBufferBlock * new_IOBufferBlock_internal(
+#ifdef TRACK_BUFFER_USER
+  const char *loc
+#endif
+);
+
+extern IOBufferBlock * new_IOBufferBlock_internal(
+#ifdef TRACK_BUFFER_USER
+  const char *loc,
+#endif
+  IOBufferData * d, int64_t len = 0, int64_t offset = 0);
+
+#ifdef TRACK_BUFFER_USER
+class IOBufferBlock_tracker
+{
+  const char *loc;
+
+public:
+    IOBufferBlock_tracker(const char *_loc):loc(_loc)
+  {
+  }
+  IOBufferBlock *operator() ()
+  {
+    return new_IOBufferBlock_internal(loc);
+  }
+  IOBufferBlock *operator() (IOBufferData * d, int64_t len = 0, int64_t offset = 0) {
+    return new_IOBufferBlock_internal(loc, d, len, offset);
+  }
+
+};
+#endif
+
+/// IOBufferBlock allocator
+#ifdef TRACK_BUFFER_USER
+#define new_IOBufferBlock  IOBufferBlock_tracker(RES_PATH("memory/IOBuffer/"))
+#else
+#define new_IOBufferBlock  new_IOBufferBlock_internal
+#endif
+////////////////////////////////////////////////////////////
+
+extern IOBufferData *new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+  const char *location,
+#endif
+  int64_t size_index = default_large_iobuffer_size,
+  AllocType type = DEFAULT_ALLOC);
+
+extern IOBufferData *new_xmalloc_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+  const char *location,
+#endif
+  void *b, int64_t size);
+
+extern IOBufferData *new_constant_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+  const char *locaction,
+#endif
+  void *b, int64_t size);
+
+#ifdef TRACK_BUFFER_USER
+class IOBufferData_tracker
+{
+  const char *loc;
+
+public:
+  IOBufferData_tracker(const char *_loc):loc(_loc)
+  {
+  }
+  IOBufferData *operator() (int64_t size_index = default_large_iobuffer_size, AllocType type = DEFAULT_ALLOC) {
+    return new_IOBufferData_internal(loc, size_index, type);
+  }
+
+};
+#endif
+
+#ifdef TRACK_BUFFER_USER
+#define new_IOBufferData IOBufferData_tracker(RES_PATH("memory/IOBuffer/"))
+#define  new_xmalloc_IOBufferData(b, size)                      \
+new_xmalloc_IOBufferData_internal(RES_PATH("memory/IOBuffer/"), \
+				  (b), (size))
+#define  new_constant_IOBufferData(b, size)                      \
+new_constant_IOBufferData_internal(RES_PATH("memory/IOBuffer/"), \
+				  (b), (size))
+#else
+#define new_IOBufferData new_IOBufferData_internal
+#define  new_xmalloc_IOBufferData new_xmalloc_IOBufferData_internal
+#define  new_constant_IOBufferData new_constant_IOBufferData_internal
+#endif
+
+extern int64_t iobuffer_size_to_index(int64_t size, int64_t max = max_iobuffer_size);
+extern int64_t index_to_buffer_size(int64_t idx);
+/**
+  Clone a IOBufferBlock chain. Used to snarf a IOBufferBlock chain
+  w/o copy.
+
+  @param b head of source IOBufferBlock chain.
+  @param offset # bytes in the beginning to skip.
+  @param len bytes to copy from source.
+  @return ptr to head of new IOBufferBlock chain.
+
+*/
+extern IOBufferBlock *iobufferblock_clone(IOBufferBlock * b, int64_t offset, int64_t len);
+/**
+  Skip over specified bytes in chain. Used for dropping references.
+
+  @param b head of source IOBufferBlock chain.
+  @param poffset originally offset in b, finally offset in returned
+    IOBufferBlock.
+  @param plen value of write is subtracted from plen in the function.
+  @param write bytes to skip.
+  @return ptr to head of new IOBufferBlock chain.
+
+*/
+extern IOBufferBlock *iobufferblock_skip(IOBufferBlock * b, int64_t *poffset, int64_t *plen, int64_t write);
+#endif
diff --git a/iocore/eventsystem/I_Lock.h b/iocore/eventsystem/I_Lock.h
new file mode 100644
index 00000000..1bca2c83
--- /dev/null
+++ b/iocore/eventsystem/I_Lock.h
@@ -0,0 +1,585 @@
+/** @file
+
+  Basic locks for threads
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_Lock_h_
+#define _I_Lock_h_
+
+#include "libts.h"
+#include "I_Thread.h"
+
+#define MAX_LOCK_TIME	HRTIME_MSECONDS(200)
+#define THREAD_MUTEX_THREAD_HOLDING	(-1024*1024)
+
+class EThread;
+typedef EThread *EThreadPtr;
+typedef volatile EThreadPtr VolatileEThreadPtr;
+
+inkcoreapi extern void lock_waiting(const char *file, int line, const char *handler);
+inkcoreapi extern void lock_holding(const char *file, int line, const char *handler);
+extern void lock_taken(const char *file, int line, const char *handler);
+
+/**
+  Lock object used in continuations and threads.
+
+  The ProxyMutex class is the main synchronization object used
+  throughout the Event System. It is a reference counted object
+  that provides mutually exclusive access to a resource. Since the
+  Event System is multithreaded by design, the ProxyMutex is required
+  to protect data structures and state information that could
+  otherwise be affected by the action of concurrent threads.
+
+  A ProxyMutex object has an ink_mutex member (defined in ink_mutex.h)
+  which is a wrapper around the platform dependent mutex type. This
+  member allows the ProxyMutex to provide the functionallity required
+  by the users of the class without the burden of platform specific
+  function calls.
+
+  The ProxyMutex also has a reference to the current EThread holding
+  the lock as a back pointer for verifying that it is released
+  correctly.
+
+  Acquiring/Releasing locks:
+
+  Included with the ProxyMutex class, there are several macros that
+  allow you to lock/unlock the underlying mutex object.
+
+*/
+class ProxyMutex: public RefCountObj
+{
+public:
+  /**
+    Underlying mutex object.
+
+    The platform independent mutex for the ProxyMutex class. You
+    must not modify or set it directly.
+
+  */
+  // coverity[uninit_member]
+  ink_mutex the_mutex;
+
+  /**
+    Backpointer to owning thread.
+
+    This is a pointer to the thread currently holding the mutex
+    lock.  You must not modify or set this value directly.
+
+  */
+  volatile EThreadPtr thread_holding;
+  
+  int nthread_holding;
+
+#ifdef DEBUG
+  ink_hrtime hold_time;
+  const char *file;
+  int line;
+  const char *handler;
+
+#  ifdef MAX_LOCK_TAKEN
+  int taken;
+#  endif                        //MAX_LOCK_TAKEN
+
+#  ifdef LOCK_CONTENTION_PROFILING
+  int total_acquires, blocking_acquires,
+    nonblocking_acquires, successful_nonblocking_acquires, unsuccessful_nonblocking_acquires;
+  void print_lock_stats(int flag);
+#  endif                        //LOCK_CONTENTION_PROFILING
+#endif                          //DEBUG
+  void free();
+
+  /**
+    Constructor - use new_ProxyMutex() instead.
+
+    The constructor of a ProxyMutex object. Initializes the state
+    of the object but leaves the initialization of the mutex member
+    until it is needed (through init()). Do not use this constructor,
+    the preferred mechanism for creating a ProxyMutex is via the
+    new_ProxyMutex function, which provides a faster allocation.
+
+  */
+  ProxyMutex()
+  {
+    thread_holding = NULL;
+    nthread_holding = 0;
+#ifdef DEBUG
+    hold_time = 0;
+    file = NULL;
+    line = 0;
+    handler = NULL;
+#  ifdef MAX_LOCK_TAKEN
+    taken = 0;
+#  endif                        //MAX_LOCK_TAKEN
+#  ifdef LOCK_CONTENTION_PROFILING
+    total_acquires = 0;
+    blocking_acquires = 0;
+    nonblocking_acquires = 0;
+    successful_nonblocking_acquires = 0;
+    unsuccessful_nonblocking_acquires = 0;
+#  endif                        //LOCK_CONTENTION_PROFILING
+#endif                          //DEBUG
+    // coverity[uninit_member]
+  }
+
+  /**
+    Initializes the underlying mutex object.
+
+    After constructing your ProxyMutex object, use this function
+    to initialize the underlying mutex object with an optional name.
+
+    @param name Name to identify this ProxyMutex. Its use depends
+      on the given platform.
+
+  */
+  void init(const char *name = "UnnamedMutex") {
+    ink_mutex_init(&the_mutex, name);
+  }
+};
+
+// The ClassAlocator for ProxyMutexes
+extern inkcoreapi ClassAllocator<ProxyMutex> mutexAllocator;
+
+inline bool
+Mutex_trylock(
+#ifdef DEBUG
+               const char *afile, int aline, const char *ahandler,
+#endif
+               ProxyMutex * m, EThread * t)
+{
+
+  ink_assert(t != 0);
+  ink_assert(t == (EThread*)this_thread());
+  if (m->thread_holding != t) {
+    if (!ink_mutex_try_acquire(&m->the_mutex)) {
+#ifdef DEBUG
+      lock_waiting(m->file, m->line, m->handler);
+#ifdef LOCK_CONTENTION_PROFILING
+      m->unsuccessful_nonblocking_acquires++;
+      m->nonblocking_acquires++;
+      m->total_acquires++;
+      m->print_lock_stats(0);
+#endif //LOCK_CONTENTION_PROFILING
+#endif //DEBUG
+      return false;
+    }
+    ink_assert(m->thread_holding = t);
+#ifdef DEBUG
+    m->file = afile;
+    m->line = aline;
+    m->handler = ahandler;
+    m->hold_time = ink_get_hrtime();
+#ifdef MAX_LOCK_TAKEN
+    m->taken++;
+#endif //MAX_LOCK_TAKEN
+#endif //DEBUG
+  }
+#ifdef DEBUG
+#ifdef LOCK_CONTENTION_PROFILING
+  m->successful_nonblocking_acquires++;
+  m->nonblocking_acquires++;
+  m->total_acquires++;
+  m->print_lock_stats(0);
+#endif //LOCK_CONTENTION_PROFILING
+#endif //DEBUG
+  m->nthread_holding++;
+  return true;
+}
+
+inline bool
+Mutex_trylock_spin(
+#ifdef DEBUG
+                    const char *afile, int aline, const char *ahandler,
+#endif
+                    ProxyMutex * m, EThread * t, int spincnt = 1)
+{
+
+  ink_assert(t != 0);
+  if (m->thread_holding != t) {
+    int locked;
+    do {
+      if ((locked = ink_mutex_try_acquire(&m->the_mutex)))
+        break;
+    } while (--spincnt);
+    if (!locked) {
+#ifdef DEBUG
+      lock_waiting(m->file, m->line, m->handler);
+#ifdef LOCK_CONTENTION_PROFILING
+      m->unsuccessful_nonblocking_acquires++;
+      m->nonblocking_acquires++;
+      m->total_acquires++;
+      m->print_lock_stats(0);
+#endif //LOCK_CONTENTION_PROFILING
+#endif //DEBUG
+      return false;
+    }
+    m->thread_holding = t;
+    ink_assert(m->thread_holding);
+#ifdef DEBUG
+    m->file = afile;
+    m->line = aline;
+    m->handler = ahandler;
+    m->hold_time = ink_get_hrtime();
+#ifdef MAX_LOCK_TAKEN
+    m->taken++;
+#endif //MAX_LOCK_TAKEN
+#endif //DEBUG
+  }
+#ifdef DEBUG
+#ifdef LOCK_CONTENTION_PROFILING
+  m->successful_nonblocking_acquires++;
+  m->nonblocking_acquires++;
+  m->total_acquires++;
+  m->print_lock_stats(0);
+#endif //LOCK_CONTENTION_PROFILING
+#endif //DEBUG
+  m->nthread_holding++;
+  return true;
+}
+
+inline int
+Mutex_lock(
+#ifdef DEBUG
+            const char *afile, int aline, const char *ahandler,
+#endif
+            ProxyMutex * m, EThread * t)
+{
+
+  ink_assert(t != 0);
+  if (m->thread_holding != t) {
+    ink_mutex_acquire(&m->the_mutex);
+    m->thread_holding = t;
+    ink_assert(m->thread_holding);
+#ifdef DEBUG
+    m->file = afile;
+    m->line = aline;
+    m->handler = ahandler;
+    m->hold_time = ink_get_hrtime();
+#ifdef MAX_LOCK_TAKEN
+    m->taken++;
+#endif //MAX_LOCK_TAKEN
+#endif //DEBUG
+  }
+#ifdef DEBUG
+#ifdef LOCK_CONTENTION_PROFILING
+  m->blocking_acquires++;
+  m->total_acquires++;
+  m->print_lock_stats(0);
+#endif // LOCK_CONTENTION_PROFILING
+#endif //DEBUG
+  m->nthread_holding++;
+  return true;
+}
+
+inline void
+Mutex_unlock(ProxyMutex * m, EThread * t)
+{
+  if (m->nthread_holding) {
+    ink_assert(t == m->thread_holding);
+    m->nthread_holding--;
+    if (!m->nthread_holding) {
+#ifdef DEBUG
+      if (ink_get_hrtime() - m->hold_time > MAX_LOCK_TIME)
+        lock_holding(m->file, m->line, m->handler);
+#ifdef MAX_LOCK_TAKEN
+      if (m->taken > MAX_LOCK_TAKEN)
+        lock_taken(m->file, m->line, m->handler);
+#endif //MAX_LOCK_TAKEN
+      m->file = NULL;
+      m->line = 0;
+      m->handler = NULL;
+#endif //DEBUG
+      ink_assert(m->thread_holding);
+      m->thread_holding = 0;
+      ink_mutex_release(&m->the_mutex);
+    }
+  }
+}
+
+struct MutexLock
+{
+  Ptr<ProxyMutex> m;
+
+  MutexLock():m(NULL)
+  {
+  };
+
+  MutexLock(
+#ifdef DEBUG
+             const char *afile, int aline, const char *ahandler,
+#endif                          //DEBUG
+             ProxyMutex * am, EThread * t):m(am)
+  {
+
+    Mutex_lock(
+#ifdef DEBUG
+                afile, aline, ahandler,
+#endif //DEBUG
+                m, t);
+  }
+
+  void set_and_take(
+#ifdef DEBUG
+                     const char *afile, int aline, const char *ahandler,
+#endif                          //DEBUG
+                     ProxyMutex * am, EThread * t)
+  {
+
+    m = am;
+    Mutex_lock(
+#ifdef DEBUG
+                afile, aline, ahandler,
+#endif //DEBUG
+                m, t);
+  }
+
+  void release()
+  {
+    if (m)
+      Mutex_unlock(m, m->thread_holding);
+    m.clear();
+  }
+
+  ~MutexLock()
+  {
+    if (m)
+      Mutex_unlock(m, m->thread_holding);
+  }
+
+  int operator!() const { return false; }
+  operator bool() { return true; }
+};
+
+struct MutexTryLock
+{
+  Ptr<ProxyMutex> m;
+  volatile bool lock_acquired;
+
+  MutexTryLock(
+#ifdef DEBUG
+                  const char *afile, int aline, const char *ahandler,
+#endif                          //DEBUG
+                  ProxyMutex * am, EThread * t)
+  {
+      lock_acquired = Mutex_trylock(
+#ifdef DEBUG
+                                     afile, aline, ahandler,
+#endif //DEBUG
+                                     am, t);
+      if (lock_acquired)
+        m = am;
+  }
+
+  MutexTryLock(
+#ifdef DEBUG
+                const char *afile, int aline, const char *ahandler,
+#endif                          //DEBUG
+                ProxyMutex * am, EThread * t, int sp)
+  {
+      lock_acquired = Mutex_trylock_spin(
+#ifdef DEBUG
+                                          afile, aline, ahandler,
+#endif //DEBUG
+                                          am, t, sp);
+      if (lock_acquired)
+        m = am;
+  }
+
+  ~MutexTryLock()
+  {
+    if (m.m_ptr)
+      Mutex_unlock(m.m_ptr, m.m_ptr->thread_holding);
+  }
+
+  void release()
+  {
+    if (m.m_ptr) {
+      Mutex_unlock(m.m_ptr, m.m_ptr->thread_holding);
+      m.clear();
+    }
+    lock_acquired = false;
+  }
+
+  int operator!() const { return !lock_acquired; }
+  operator bool() const { return lock_acquired; }
+};
+
+inline void
+ProxyMutex::free()
+{
+#ifdef DEBUG
+#ifdef LOCK_CONTENTION_PROFILING
+  print_lock_stats(1);
+#endif
+#endif
+  ink_mutex_destroy(&the_mutex);
+  mutexAllocator.free(this);
+}
+
+// TODO should take optional mutex "name" identifier, to pass along to the init() fun
+/**
+  Creates a new ProxyMutex object.
+
+  This is the preferred mechanism for constructing objects of the
+  ProxyMutex class. It provides you with faster allocation than
+  that of the normal constructor.
+
+  @return A pointer to a ProxyMutex object appropriate for the build
+    environment.
+
+*/
+inline ProxyMutex *
+new_ProxyMutex()
+{
+  ProxyMutex *m = mutexAllocator.alloc();
+  m->init();
+  return m;
+}
+
+/*------------------------------------------------------*\
+|  Macros                                                |
+\*------------------------------------------------------*/
+
+/**
+  Blocks until the lock to the ProxyMutex is acquired.
+
+  This macro performs a blocking call until the lock to the ProxyMutex
+  is acquired. This call allocates a special object that holds the
+  lock to the ProxyMutex only for the scope of the function or
+  region. It is a good practice to delimit such scope explicitly
+  with '&#123;' and '&#125;'.
+
+  @param _l Arbitrary name for the lock to use in this call
+  @param _m A pointer to (or address of) a ProxyMutex object
+  @param _t The current EThread executing your code.
+
+*/
+#  ifdef DEBUG
+#    define MUTEX_LOCK(_l,_m,_t) MutexLock _l(__FILE__,__LINE__,NULL,_m,_t)
+#  else
+#    define MUTEX_LOCK(_l,_m,_t) MutexLock _l(_m,_t)
+#  endif //DEBUG
+
+#  ifdef DEBUG
+/**
+  Attempts to acquire the lock to the ProxyMutex.
+
+  This macro attempts to acquire the lock to the specified ProxyMutex
+  object in a non-blocking manner. After using the macro you can
+  see if it was successful by comparing the lock variable with true
+  or false (the variable name passed in the _l parameter).
+
+  @param _l Arbitrary name for the lock to use in this call (lock variable)
+  @param _m A pointer to (or address of) a ProxyMutex object
+  @param _t The current EThread executing your code.
+
+*/
+#    define MUTEX_TRY_LOCK(_l,_m,_t) \
+MutexTryLock _l(__FILE__,__LINE__,(char*)NULL,_m,_t)
+
+/**
+  Attempts to acquire the lock to the ProxyMutex.
+
+  This macro performs up to the specified number of attempts to
+  acquire the lock on the ProxyMutex object. It does so by running
+  a busy loop (busy wait) '_sc' times. You should use it with care
+  since it blocks the thread during that time and wastes CPU time.
+
+  @param _l Arbitrary name for the lock to use in this call (lock variable)
+  @param _m A pointer to (or address of) a ProxyMutex object
+  @param _t The current EThread executing your code.
+  @param _sc The number of attempts or spin count. It must be a positive value.
+
+*/
+#    define MUTEX_TRY_LOCK_SPIN(_l,_m,_t,_sc) \
+MutexTryLock _l(__FILE__,__LINE__,(char*)NULL,_m,_t,_sc)
+
+
+/**
+  Attempts to acquire the lock to the ProxyMutex.
+
+  This macro attempts to acquire the lock to the specified ProxyMutex
+  object in a non-blocking manner. After using the macro you can
+  see if it was successful by comparing the lock variable with true
+  or false (the variable name passed in the _l parameter).
+
+  @param _l Arbitrary name for the lock to use in this call (lock variable)
+  @param _m A pointer to (or address of) a ProxyMutex object
+  @param _t The current EThread executing your code.
+  @param _c Continuation whose mutex will be attempted to lock.
+
+*/
+
+#    define MUTEX_TRY_LOCK_FOR(_l,_m,_t,_c) \
+MutexTryLock _l(__FILE__,__LINE__,NULL,_m,_t)
+#  else //DEBUG
+#    define MUTEX_TRY_LOCK(_l,_m,_t) MutexTryLock _l(_m,_t)
+#    define MUTEX_TRY_LOCK_SPIN(_l,_m,_t,_sc) MutexTryLock _l(_m,_t,_sc)
+#    define MUTEX_TRY_LOCK_FOR(_l,_m,_t,_c) MutexTryLock _l(_m,_t)
+#  endif //DEBUG
+
+/**
+  Releases the lock on a ProxyMutex.
+
+  This macro releases the lock on the ProxyMutex, provided it is
+  currently held. The lock must have been successfully acquired
+  with one of the MUTEX macros.
+
+  @param _l Arbitrary name for the lock to use in this call (lock
+    variable) It must be the same name as the one used to acquire the
+    lock.
+
+*/
+#  define MUTEX_RELEASE(_l) (_l).release()
+
+/////////////////////////////////////
+// DEPRECATED DEPRECATED DEPRECATED
+#ifdef DEBUG
+#  define MUTEX_TAKE_TRY_LOCK(_m,_t) \
+Mutex_trylock(__FILE__,__LINE__,(char*)NULL,_m,_t)
+#  define MUTEX_TAKE_TRY_LOCK_FOR(_m,_t,_c) \
+Mutex_trylock(__FILE__,__LINE__,(char*)NULL,_m,_t)
+#  define MUTEX_TAKE_TRY_LOCK_FOR_SPIN(_m,_t,_c,_sc) \
+Mutex_trylock_spin(__FILE__,__LINE__,NULL,_m,_t,_sc)
+#else
+#  define MUTEX_TAKE_TRY_LOCK(_m,_t) Mutex_trylock(_m,_t)
+#  define MUTEX_TAKE_TRY_LOCK_FOR(_m,_t,_c) Mutex_trylock(_m,_t)
+#  define MUTEX_TAKE_TRY_LOCK_FOR_SPIN(_m,_t,_c,_sc) \
+Mutex_trylock_spin(_m,_t,_sc)
+#endif
+
+#ifdef DEBUG
+#  define MUTEX_TAKE_LOCK(_m,_t)\
+Mutex_lock(__FILE__,__LINE__,(char*)NULL,_m,_t)
+#  define MUTEX_SET_AND_TAKE_LOCK(_s,_m,_t)\
+_s.set_and_take(__FILE__,__LINE__,(char*)NULL,_m,_t)
+#  define MUTEX_TAKE_LOCK_FOR(_m,_t,_c) \
+Mutex_lock(__FILE__,__LINE__,NULL,_m,_t)
+#else
+#  define MUTEX_TAKE_LOCK(_m,_t) Mutex_lock(_m,_t)
+#  define MUTEX_SET_AND_TAKE_LOCK(_s,_m,_t)_s.set_and_take(_m,_t)
+#  define MUTEX_TAKE_LOCK_FOR(_m,_t,_c) Mutex_lock(_m,_t)
+#endif //DEBUG
+
+#define MUTEX_UNTAKE_LOCK(_m,_t) Mutex_unlock(_m,_t)
+// DEPRECATED DEPRECATED DEPRECATED
+/////////////////////////////////////
+
+#endif // _Lock_h_
diff --git a/iocore/eventsystem/I_PriorityEventQueue.h b/iocore/eventsystem/I_PriorityEventQueue.h
new file mode 100644
index 00000000..aaa37176
--- /dev/null
+++ b/iocore/eventsystem/I_PriorityEventQueue.h
@@ -0,0 +1,125 @@
+/** @file
+
+  Queue of Events sorted by the "at_timeout" field
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_PriorityEventQueue_h_
+#define _I_PriorityEventQueue_h_
+
+#include "libts.h"
+#include "I_Event.h"
+
+
+// <5ms, 10, 20, 40, 80, 160, 320, 640, 1280, 2560, 5120
+#define N_PQ_LIST        10
+#define PQ_BUCKET_TIME(_i) (HRTIME_MSECONDS(5) << (_i))
+
+class EThread;
+
+struct PriorityEventQueue
+{
+
+  Que(Event, link) after[N_PQ_LIST];
+  ink_hrtime last_check_time;
+  uint32_t last_check_buckets;
+
+  void enqueue(Event * e, ink_hrtime now)
+  {
+    ink_hrtime t = e->timeout_at - now;
+    int i = 0;
+    // equivalent but faster
+    if (t <= PQ_BUCKET_TIME(3))
+    {
+      if (t <= PQ_BUCKET_TIME(1)) {
+        if (t <= PQ_BUCKET_TIME(0)) {
+          i = 0;
+        } else
+        {
+          i = 1;
+        }
+      } else {
+        if (t <= PQ_BUCKET_TIME(2)) {
+          i = 2;
+        } else {
+          i = 3;
+        }
+      }
+    } else {
+      if (t <= PQ_BUCKET_TIME(7)) {
+        if (t <= PQ_BUCKET_TIME(5)) {
+          if (t <= PQ_BUCKET_TIME(4)) {
+            i = 4;
+          } else {
+            i = 5;
+          }
+        } else {
+          if (t <= PQ_BUCKET_TIME(6)) {
+            i = 6;
+          } else {
+            i = 7;
+          }
+        }
+      } else {
+        if (t <= PQ_BUCKET_TIME(8)) {
+          i = 8;
+        } else {
+          i = 9;
+        }
+      }
+    }
+    e->in_the_priority_queue = 1;
+    e->in_heap = i;
+    after[i].enqueue(e);
+  }
+
+  void remove(Event * e)
+  {
+    ink_assert(e->in_the_priority_queue);
+    e->in_the_priority_queue = 0;
+    after[e->in_heap].remove(e);
+  }
+
+  Event *dequeue_ready(ink_hrtime t)
+  {
+    (void) t;
+    Event *e = after[0].dequeue();
+    if (e) {
+      ink_assert(e->in_the_priority_queue);
+      e->in_the_priority_queue = 0;
+    }
+    return e;
+  }
+
+  void check_ready(ink_hrtime now, EThread * t);
+
+  ink_hrtime earliest_timeout()
+  {
+    for (int i = 0; i < N_PQ_LIST; i++) {
+      if (after[i].head)
+        return last_check_time + (PQ_BUCKET_TIME(i) / 2);
+    }
+    return last_check_time + HRTIME_FOREVER;
+  }
+
+  PriorityEventQueue();
+};
+
+#endif
diff --git a/iocore/eventsystem/I_Processor.h b/iocore/eventsystem/I_Processor.h
new file mode 100644
index 00000000..66fa700d
--- /dev/null
+++ b/iocore/eventsystem/I_Processor.h
@@ -0,0 +1,117 @@
+/** @file
+
+  Public declaration of Processor class
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef _I_Processor_h_
+#define _I_Processor_h_
+
+#include "libts.h"
+
+#define PROCESSOR_RECONFIGURE            0x01
+#define PROCESSOR_CHECK                  0x02
+#define PROCESSOR_FIX                    0x04
+#define PROCESSOR_IGNORE_ERRORS          0x08
+
+class Processor;
+class Thread;
+
+/**
+   Base class for all of the IO Core processors.
+
+   The Processor class defines a common interface for all the
+   processors in the IO Core. A processor is multithreaded subsystem
+   specialized in some type of task or application. For example,
+   the Event System module includes the EventProcessor which provides
+   schedulling services, the Net module includes the NetProcessor
+   which provides networking services, etc.
+
+   You cannot create objects of the Processor class and its methods
+   have no implementation. Therefore, you are expected to use objects
+   of a derived type.
+
+   Most of such derived classes, provide a singleton object and is
+   common case to have a single instance in that application scope.
+
+*/
+class Processor
+{
+public:
+  virtual ~Processor();
+
+  /**
+    Returns a Thread appropriate for the processor.
+
+    Returns a new instance of a Thread or Thread derived class of
+    a thread which is the thread class for the processor.
+
+    @param thread_index reserved for future use.
+
+  */
+  virtual Thread *create_thread(int thread_index);
+
+  /**
+    Returns the number of threads required for this processor. If
+    the number is not defined or not used, it is equal to 0.
+
+  */
+  virtual int get_thread_count();
+
+  /**
+    This function attemps to stop the processor. Please refer to
+    the documentation on each processor to determine if it is
+    supported.
+
+  */
+  virtual void shutdown()
+  {
+  }
+
+  /**
+    Starts execution of the processor.
+
+    Attempts to start the number of threads specified for the
+    processor, initializes their states and sets them running. On
+    failure it returns a negative value.
+
+    @param number_of_threads Positive value indicating the number of
+        threads to spawn for the processor.
+    @param stacksize The thread stack size to use for this processor.
+
+  */
+  virtual int start(int number_of_threads, size_t stacksize=DEFAULT_STACKSIZE)
+  {
+    (void) number_of_threads;
+    (void) stacksize;
+    return 0;
+  }
+
+protected:
+  Processor();
+
+private:
+  // prevent unauthorized copies (Not implemented)
+  Processor(const Processor &);
+  Processor & operator =(const Processor &);
+};
+
+#endif //_I_Processor_h_
diff --git a/iocore/eventsystem/I_ProtectedQueue.h b/iocore/eventsystem/I_ProtectedQueue.h
new file mode 100644
index 00000000..f2916554
--- /dev/null
+++ b/iocore/eventsystem/I_ProtectedQueue.h
@@ -0,0 +1,60 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Protected Queue, a FIFO queue with the following functionality:
+  (1). Multiple threads could be simultaneously trying to enqueue
+       and dequeue. Hence the queue needs to be protected with mutex.
+  (2). In case the queue is empty, dequeue() sleeps for a specified
+       amount of time, or until a new element is inserted, whichever
+       is earlier
+
+
+ ****************************************************************************/
+#ifndef _I_ProtectedQueue_h_
+#define _I_ProtectedQueue_h_
+
+#include "libts.h"
+#include "I_Event.h"
+struct ProtectedQueue
+{
+  void enqueue(Event * e,bool fast_signal=false);
+  void signal();
+  int try_signal();             // Use non blocking lock and if acquired, signal
+  void enqueue_local(Event * e);        // Safe when called from the same thread
+  void remove(Event * e);
+  Event *dequeue_local();
+  void dequeue_timed(ink_hrtime cur_time, ink_hrtime timeout, bool sleep);
+
+  InkAtomicList al;
+  ink_mutex lock;
+  ink_cond might_have_data;
+  Que(Event, link) localQueue;
+
+  ProtectedQueue();
+};
+
+void flush_signals(EThread * t);
+
+#endif
diff --git a/iocore/eventsystem/I_ProxyAllocator.h b/iocore/eventsystem/I_ProxyAllocator.h
new file mode 100644
index 00000000..94415e06
--- /dev/null
+++ b/iocore/eventsystem/I_ProxyAllocator.h
@@ -0,0 +1,124 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ProxyAllocator.h
+
+
+
+*****************************************************************************/
+#ifndef _I_ProxyAllocator_h_
+#define _I_ProxyAllocator_h_
+
+#include "libts.h"
+
+class EThread;
+
+extern int thread_freelist_size;
+
+struct ProxyAllocator
+{
+  int allocated;
+  void *freelist;
+
+  ProxyAllocator():allocated(0), freelist(0) { }
+};
+
+template<class C> inline C * thread_alloc(ClassAllocator<C> &a, ProxyAllocator & l)
+{
+#if TS_USE_FREELIST && !TS_USE_RECLAIMABLE_FREELIST
+  if (l.freelist) {
+    C *v = (C *) l.freelist;
+    l.freelist = *(C **) l.freelist;
+    l.allocated--;
+    *(void **) v = *(void **) &a.proto.typeObject;
+    return v;
+  }
+#else
+  (void)l;
+#endif
+  return a.alloc();
+}
+
+template<class C> inline C * thread_alloc_init(ClassAllocator<C> &a, ProxyAllocator & l)
+{
+#if TS_USE_FREELIST && !TS_USE_RECLAIMABLE_FREELIST
+  if (l.freelist) {
+    C *v = (C *) l.freelist;
+    l.freelist = *(C **) l.freelist;
+    l.allocated--;
+    memcpy((void *) v, (void *) &a.proto.typeObject, sizeof(C));
+    return v;
+  }
+#else
+  (void)l;
+#endif
+  return a.alloc();
+}
+
+template<class C> inline void
+thread_free(ClassAllocator<C> &a, C *p)
+{
+  a.free(p);
+}
+
+static inline void
+thread_free(Allocator &a, void *p)
+{
+  a.free_void(p);
+}
+
+template<class C> inline void
+thread_freeup(ClassAllocator<C> &a, ProxyAllocator & l)
+{
+  while (l.freelist) {
+    C *v = (C *) l.freelist;
+    l.freelist = *(C **) l.freelist;
+    l.allocated--;
+    a.free(v);                  // we could use a bulk free here
+  }
+  ink_assert(!l.allocated);
+}
+
+void* thread_alloc(Allocator &a, ProxyAllocator &l);
+void thread_freeup(Allocator &a, ProxyAllocator &l);
+
+#define THREAD_ALLOC(_a, _t) thread_alloc(::_a, _t->_a)
+#define THREAD_ALLOC_INIT(_a, _t) thread_alloc_init(::_a, _t->_a)
+#if TS_USE_FREELIST && !TS_USE_RECLAIMABLE_FREELIST
+#define THREAD_FREE(_p, _a, _t) do {            \
+  *(char **)_p = (char*)_t->_a.freelist;        \
+  _t->_a.freelist = _p;                         \
+  _t->_a.allocated++;                           \
+  if (_t->_a.allocated > thread_freelist_size)  \
+    thread_freeup(::_a, _t->_a);                \
+} while (0)
+#else /* !TS_USE_FREELIST || TS_USE_RECLAIMABLE_FREELIST */
+#define THREAD_FREE(_p, _a, _t) do {  \
+  (void)_t;                           \
+  thread_free(::_a, _p);              \
+} while (0)
+#endif
+
+#endif /* _ProxyAllocator_h_ */
diff --git a/iocore/eventsystem/I_SocketManager.h b/iocore/eventsystem/I_SocketManager.h
new file mode 100644
index 00000000..6d3dc077
--- /dev/null
+++ b/iocore/eventsystem/I_SocketManager.h
@@ -0,0 +1,179 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  SocketManager.h
+
+  Handle the allocation of the socket descriptor (fd) resource.
+
+
+ ****************************************************************************/
+
+#ifndef _I_SocketManager_h_
+#define _I_SocketManager_h_
+
+#include "libts.h"
+#include "I_EventSystem.h"
+#include "I_Thread.h"
+
+#define DEFAULT_OPEN_MODE                         0644
+
+class Thread;
+extern int net_config_poll_timeout;
+
+#define SOCKET int
+
+/** Utility class for socket operations.
+ */
+struct SocketManager
+{
+  SocketManager();
+
+  // result is the socket or -errno
+  SOCKET socket(int domain = AF_INET, int type = SOCK_STREAM, int protocol = 0, bool bNonBlocking = true);
+  SOCKET mc_socket(int domain = AF_INET, int type = SOCK_DGRAM, int protocol = 0, bool bNonBlocking = true);
+
+  // result is the fd or -errno
+  int open(const char *path, int oflag = O_RDWR | O_NDELAY | O_CREAT, mode_t mode = DEFAULT_OPEN_MODE);
+
+  // result is the number of bytes or -errno
+  int64_t read(int fd, void *buf, int len, void *pOLP = NULL);
+  int64_t vector_io(int fd, struct iovec *vector, size_t count, int read_request, void *pOLP = 0);
+  int64_t readv(int fd, struct iovec *vector, size_t count);
+  int64_t read_vector(int fd, struct iovec *vector, size_t count, void *pOLP = 0);
+  int64_t pread(int fd, void *buf, int len, off_t offset, char *tag = NULL);
+
+  int recv(int s, void *buf, int len, int flags);
+  int recvfrom(int fd, void *buf, int size, int flags, struct sockaddr *addr, socklen_t *addrlen);
+
+  int64_t write(int fd, void *buf, int len, void *pOLP = NULL);
+  int64_t writev(int fd, struct iovec *vector, size_t count);
+  int64_t write_vector(int fd, struct iovec *vector, size_t count, void *pOLP = 0);
+  int64_t pwrite(int fd, void *buf, int len, off_t offset, char *tag = NULL);
+
+  int send(int fd, void *buf, int len, int flags);
+  int sendto(int fd, void *buf, int len, int flags, struct sockaddr const* to, int tolen);
+  int sendmsg(int fd, struct msghdr *m, int flags, void *pOLP = 0);
+  int64_t lseek(int fd, off_t offset, int whence);
+  int fstat(int fd, struct stat *);
+  int unlink(char *buf);
+  int fsync(int fildes);
+  int ftruncate(int fildes, off_t length);
+  int lockf(int fildes, int function, off_t size);
+  int poll(struct pollfd *fds, unsigned long nfds, int timeout);
+#if TS_USE_EPOLL
+  int epoll_create(int size);
+  int epoll_close(int eps);
+  int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
+  int epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout = net_config_poll_timeout);
+#endif
+#if TS_USE_KQUEUE
+  int kqueue();
+  int kevent(int kq, const struct kevent *changelist, int nchanges,
+             struct kevent *eventlist, int nevents,
+             const struct timespec *timeout);
+#endif
+#if TS_USE_PORT
+  int port_create();
+  int port_associate(int port, int fd, uintptr_t obj,
+                     int events, void *user);
+  int port_dissociate(int port, int fd, uintptr_t obj);
+  int port_getn(int port, port_event_t *list, uint_t max,
+                uint_t *nget, timespec_t *timeout);
+#endif
+  int shutdown(int s, int how);
+  int dup(int s);
+
+  // result is the fd or -errno
+  int accept(int s, struct sockaddr *addr, socklen_t *addrlen);
+
+  // manipulate socket buffers
+  int get_sndbuf_size(int s);
+  int get_rcvbuf_size(int s);
+  int set_sndbuf_size(int s, int size);
+  int set_rcvbuf_size(int s, int size);
+
+  int getsockname(int s, struct sockaddr *, socklen_t *);
+
+  /** Close the socket.
+      @return 0 if successful, -errno on error.
+   */
+  int close(int sock);
+  int ink_bind(int s, struct sockaddr const* name, int namelen, short protocol = 0);
+
+  const size_t pagesize;
+
+  virtual ~ SocketManager();
+
+private:
+  // just don't do it
+    SocketManager(SocketManager &);
+    SocketManager & operator=(SocketManager &);
+};
+
+extern SocketManager socketManager;
+
+struct xfd {
+
+  xfd() : m_fd(-1) {
+  }
+
+  explicit xfd(int _fd) : m_fd(_fd) {
+  }
+
+  ~xfd() {
+    if (this->m_fd != -1) {
+      socketManager.close(this->m_fd);
+    }
+  }
+
+  /// Auto convert to a raw file descriptor.
+  operator int() const { return m_fd; }
+
+  /// Boolean operator. Returns true if we have a valid file descriptor.
+  operator bool() const { return m_fd != -1; }
+
+  xfd& operator=(int fd) {
+    if (this->m_fd != -1) {
+      socketManager.close(this->m_fd);
+    }
+
+    this->m_fd = fd;
+    return *this;
+  }
+
+  int release() {
+    int tmp = this->m_fd;
+    this->m_fd = -1;
+    return tmp;
+  }
+
+ private:
+  int m_fd;
+
+  xfd(xfd const&);            // disabled
+  xfd& operator=(xfd const&); // disabled
+};
+
+#endif /*_SocketManager_h_*/
diff --git a/iocore/eventsystem/I_Tasks.h b/iocore/eventsystem/I_Tasks.h
new file mode 100644
index 00000000..4f7a1209
--- /dev/null
+++ b/iocore/eventsystem/I_Tasks.h
@@ -0,0 +1,40 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#if !defined (I_Tasks_h)
+#define I_Tasks_h
+
+#include "I_EventSystem.h"
+
+extern EventType ET_TASK;
+
+class TasksProcessor: public Processor
+{
+ public: 
+  int start(int task_threads, size_t stacksize=DEFAULT_STACKSIZE);
+};
+
+extern TasksProcessor tasksProcessor;
+
+#endif
diff --git a/iocore/eventsystem/I_Thread.h b/iocore/eventsystem/I_Thread.h
new file mode 100644
index 00000000..4916e51b
--- /dev/null
+++ b/iocore/eventsystem/I_Thread.h
@@ -0,0 +1,163 @@
+/** @file
+
+  Thread
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Thread class provides the basic functionality for threads. Typically,
+  there will be additional derived classes. Having a common base class
+  for all threads is useful in many cases. I discuss below the use of
+  Threads in the context of Event Subsystem. Hopefully this would be
+  typical of other situations.
+
+  EventProcessor needs to create a bunch of threads. It declares a
+  class called EThread, derived from Thread. It is the responsibility of
+  the EventProcessor to create and manage all the threads needed in the
+  Event Subsystem (Note: we have removed the original ThreadManager class
+  which used to create and manage *all* the threads in the system). By
+  monitoring, we mean checking the heartbeat of each thread and the
+  number of threads in the system etc.
+
+  A derived class should either provide the function (and arguments)
+  needed by the Thread class (see start()), or should define the virtual
+  function execute().
+
+  The Thread class maintains a thread_key which registers *all*
+  the threads in the system (that have been created using Thread or
+  a derived class), using thread specific data calls.  Whenever, you
+  call this_thread() you get a pointer to the Thread that is currently
+  executing you.  Additionally, the EThread class (derived from Thread)
+  maintains its own independent key. All (and only) the threads created
+  in the Event Subsystem are registered with this key. Thus, whenever you
+  call this_ethread() you get a pointer to EThread. If you happen to call
+  this_ethread() from inside a thread which is not an EThread, you will
+  get a NULL value (since that thread will not be  registered with the
+  EThread key). This will hopefully make the use of this_ethread() safer.
+  Note that an event created with EThread can also call this_thread(),
+  in which case, it will get a pointer to Thread (rather than to EThread).
+
+ */
+
+#ifndef _I_Thread_h
+#define _I_Thread_h
+
+#if !defined(_I_EventSystem_h) && !defined(_P_EventSystem_h)
+#error "include I_EventSystem.h or P_EventSystem.h"
+-- -include I_Event.h or P_Event.h
+#endif
+#include "libts.h"
+#include "I_ProxyAllocator.h"
+class Thread;
+class ProxyMutex;
+
+#define THREADAPI
+#define THREADAPI_RETURN_TYPE void *
+typedef THREADAPI_RETURN_TYPE(THREADAPI * ThreadFunction) (void *arg);
+
+extern ProxyMutex *global_mutex;
+
+static const int MAX_THREAD_NAME_LENGTH  = 16;
+static const int DEFAULT_STACKSIZE = 1048576; // 1MB
+
+
+/**
+  Base class for the threads in the Event System. Thread is the base
+  class for all the thread classes in the Event System. Objects of the
+  Thread class represent spawned or running threads and provide minimal
+  information for its derived classes. Thread objects have a reference
+  to a ProxyMutex, that is used for atomic operations internally, and
+  an ink_thread member that is used to identify the thread in the system.
+
+  You should not create an object of the Thread class, they are typically
+  instantiated after some thread startup mechanism exposed by a processor,
+  but even then you would probably deal with processor functions and
+  not the Thread object itself.
+
+*/
+class Thread
+{
+public:
+
+  /*-------------------------------------------*\
+  | Common Interface                            |
+  \*-------------------------------------------*/
+
+  /**
+    System-wide thread identifier. The thread identifier is represented
+    by the platform independent type ink_thread and it is the system-wide
+    value assigned to each thread. It is exposed as a convenience for
+    processors and you should not modify it directly.
+
+  */
+  ink_thread tid;
+
+  /**
+    Thread lock to ensure atomic operations. The thread lock available
+    to derived classes to ensure atomic operations and protect critical
+    regions. Do not modify this member directly.
+
+  */
+  ProxyMutex *mutex;
+
+  // PRIVATE
+  void set_specific();
+  Thread();
+  virtual ~ Thread();
+
+  static ink_hrtime cur_time;
+  inkcoreapi static ink_thread_key thread_data_key;
+  Ptr<ProxyMutex> mutex_ptr;
+
+  // For THREAD_ALLOC
+  ProxyAllocator eventAllocator;
+  ProxyAllocator netVCAllocator;
+  ProxyAllocator sslNetVCAllocator;
+  ProxyAllocator httpClientSessionAllocator;
+  ProxyAllocator httpServerSessionAllocator;
+  ProxyAllocator hdrHeapAllocator;
+  ProxyAllocator strHeapAllocator;
+  ProxyAllocator cacheVConnectionAllocator;
+  ProxyAllocator openDirEntryAllocator;
+  ProxyAllocator ramCacheCLFUSEntryAllocator;
+  ProxyAllocator ramCacheLRUEntryAllocator;
+  ProxyAllocator evacuationBlockAllocator;
+  ProxyAllocator ioDataAllocator;
+  ProxyAllocator ioAllocator;
+  ProxyAllocator ioBlockAllocator;
+  ProxyAllocator ioBufAllocator[DEFAULT_BUFFER_SIZES];
+
+private:
+  // prevent unauthorized copies (Not implemented)
+  Thread(const Thread &);
+  Thread & operator =(const Thread &);
+
+public:
+  ink_thread start(const char* name, size_t stacksize=DEFAULT_STACKSIZE, ThreadFunction f=NULL, void *a=NULL);
+
+  virtual void execute()
+  {  }
+};
+
+extern ink_hrtime ink_get_hrtime();
+extern ink_hrtime ink_get_based_hrtime();
+extern Thread *this_thread();
+
+#endif /*_I_Thread_h*/
diff --git a/iocore/eventsystem/I_VConnection.h b/iocore/eventsystem/I_VConnection.h
new file mode 100644
index 00000000..18039770
--- /dev/null
+++ b/iocore/eventsystem/I_VConnection.h
@@ -0,0 +1,405 @@
+/** @file
+
+  Public VConnection declaration and associated declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#if !defined (_I_VConnection_h_)
+#define _I_VConnection_h_
+
+#include "libts.h"
+#include "I_EventSystem.h"
+#if !defined(I_VIO_h)
+#error "include I_VIO.h"
+-- -include I_VIO.h
+#endif
+
+//
+// Data Types
+//
+#define VCONNECTION_CACHE_DATA_BASE     0
+#define VCONNECTION_NET_DATA_BASE       100
+#define VCONNECTION_API_DATA_BASE       200
+
+//
+// Event signals
+//
+
+#define VC_EVENT_NONE                    EVENT_NONE
+
+/** When a Continuation is first scheduled on a processor. */
+#define VC_EVENT_IMMEDIATE               EVENT_IMMEDIATE
+
+#define	VC_EVENT_READ_READY              VC_EVENT_EVENTS_START
+
+/**
+  Any data in the accociated buffer *will be written* when the
+  Continuation returns.
+
+*/
+#define	VC_EVENT_WRITE_READY             (VC_EVENT_EVENTS_START+1)
+
+#define	VC_EVENT_READ_COMPLETE           (VC_EVENT_EVENTS_START+2)
+#define	VC_EVENT_WRITE_COMPLETE          (VC_EVENT_EVENTS_START+3)
+
+/**
+  No more data (end of stream). It should be interpreted by a
+  protocol engine as either a COMPLETE or ERROR.
+
+*/
+#define	VC_EVENT_EOS                     (VC_EVENT_EVENTS_START+4)
+
+#define	VC_EVENT_ERROR                   EVENT_ERROR
+
+/**
+  VC_EVENT_INACTIVITY_TIMEOUT indiates that the operation (read or write) has:
+    -# been enabled for more than the inactivity timeout period
+       (for a read, there has been space in the buffer)
+       (for a write, there has been data in the buffer)
+    -# no progress has been made
+       (for a read, no data has been read from the connection)
+       (for a write, no data has been written to the connection)
+
+*/
+#define	VC_EVENT_INACTIVITY_TIMEOUT      (VC_EVENT_EVENTS_START+5)
+
+/**
+  Total time for some operation has been exeeded, regardless of any
+  intermediate progress.
+
+*/
+#define	VC_EVENT_ACTIVE_TIMEOUT          (VC_EVENT_EVENTS_START+6)
+
+#define	VC_EVENT_OOB_COMPLETE            (VC_EVENT_EVENTS_START+7)
+
+//
+// Event names
+//
+
+//
+// VC_EVENT_READ_READ occurs when data *has been written* into
+// the associated buffer.
+//
+// VC_EVENT_ERROR indicates that some error has occured.  The
+// "data" will be either 0 if the errno is unavailable or errno.
+//
+// VC_EVENT_INTERVAL indidates that an interval timer has expired.
+//
+
+//
+// Event return codes
+//
+#define VC_EVENT_DONE                CONTINUATION_DONE
+#define VC_EVENT_CONT                CONTINUATION_CONT
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Support Data Structures
+//
+//////////////////////////////////////////////////////////////////////////////
+  class VConnection;
+
+typedef int (VConnection::*VConnectionHandler) (int event, void *data);
+
+/** Used in VConnection::shutdown(). */
+enum ShutdownHowTo_t
+{
+  IO_SHUTDOWN_READ = 0,
+  IO_SHUTDOWN_WRITE,
+  IO_SHUTDOWN_READWRITE
+};
+
+/** Used in VConnection::get_data(). */
+enum TSApiDataType
+{
+  TS_API_DATA_READ_VIO = VCONNECTION_API_DATA_BASE,
+  TS_API_DATA_WRITE_VIO,
+  TS_API_DATA_OUTPUT_VC,
+  TS_API_DATA_CLOSED
+};
+
+extern "C" {
+    typedef struct tsapi_vio* TSVIO;
+}
+
+/**
+  Base class for the connection classes that provide IO capabilities.
+
+  The VConnection class is an abstract representation of a uni or
+  bi-directional data conduit returned by a Processor. In a sense,
+  they serve a similar purpose to file descriptors. A VConnection
+  is a pure base class that defines methods to perform stream IO.
+  It is also a Continuation that is called back from processors.
+
+*/
+class VConnection:public Continuation
+{
+public:
+
+  virtual ~ VConnection();
+
+  /**
+    Read data from the VConnection.
+
+    Called by a state machine to read data from the VConnection.
+    Processors implementing read functionality take out lock, put
+    new bytes on the buffer and call the continuation back before
+    releasing the lock in order to enable the state machine to
+    handle transfer schemes where the end of a given transaction
+    is marked by a special character (ie: NNTP).
+
+    <b>Possible Event Codes</b>
+
+    On the callback to the continuation, the VConnection may use
+    on of the following values for the event code:
+
+    <table border="1">
+      <tr>
+        <td align="center"><b>Event code</b></td>
+        <td align="center"><b>Meaning</b></td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_READ_READY</td>
+        <td>Data has been added to the buffer or the buffer is full</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_READ_COMPLETE</td>
+        <td>The amount of data indicated by 'nbytes' has been read into the
+            buffer</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_EOS</td>
+        <td>The stream being read from has been shutdown</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_ERROR</td>
+        <td>An error occurred during the read</td>
+      </tr>
+    </table>
+
+    @param c Continuation to be called back with events.
+    @param nbytes Number of bytes to read. If unknown, nbytes must
+      be set to INT64_MAX.
+    @param buf buffer to read into.
+    @return VIO representing the scheduled IO operation.
+
+  */
+  virtual VIO *do_io_read(Continuation *c = NULL, int64_t nbytes = INT64_MAX, MIOBuffer *buf = 0) = 0;
+
+  /**
+    Write data to the VConnection.
+
+    This method is called by a state machine to write data to the
+    VConnection.
+
+    <b>Possible Event Codes</b>
+
+    On the callback to the continuation, the VConnection may use
+    on of the following event codes:
+
+    <table border="1">
+      <tr>
+        <td align="center"><b>Event code</b></td>
+        <td align="center"><b>Meaning</b></td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_WRITE_READY</td>
+        <td>Data was written from the reader or there are no bytes available
+        for the reader to write.</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_WRITE_COMPLETE</td>
+        <td>The amount of data indicated by 'nbytes' has been written to the
+            VConnection</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_INACTIVITY_TIMEOUT</td>
+        <td>No activity was performed for a certain period.</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_ACTIVE_TIMEOUT</td>
+        <td>Write operation continued beyond a time limit.</td>
+      </tr>
+      <tr>
+        <td>VC_EVENT_ERROR</td>
+        <td>An error occurred during the write</td>
+      </tr>
+    </table>
+
+    @param c Continuation to be called back with events.
+    @param nbytes Number of bytes to write. If unknown, nbytes must
+      be set to INT64_MAX.
+    @param buf Reader whose data is to be read from.
+    @param owner
+    @return VIO representing the scheduled IO operation.
+
+  */
+  virtual VIO *do_io_write(Continuation *c = NULL,
+                           int64_t nbytes = INT64_MAX, IOBufferReader *buf = 0, bool owner = false) = 0;
+
+  /**
+    Indicate that the VConnection is no longer needed.
+
+    Once the state machine has finished using this VConnection, it
+    must call this function to indicate that the VConnection can
+    be deallocated.  After a close has been called, the VConnection
+    and underlying processor must not send any more events related
+    to this VConnection to the state machine. Likeswise, the state
+    machine must not access the VConnection or any VIOs obtained
+    from it after calling this method.
+
+    @param lerrno indicates where a close is a normal close or an
+      abort. The difference between a normal close and an abort
+      depends on the underlying type of the VConnection.
+
+  */
+  virtual void do_io_close(int lerrno = -1) = 0;
+
+  /**
+    Terminate one or both directions of the VConnection.
+
+    Indicates that one or both sides of the VConnection should be
+    terminated. After this call is issued, no further I/O can be
+    done on the specified direction of the connection. The processor
+    must not send any further events (including timeout events) to
+    the state machine, and the state machine must not use any VIOs
+    from a shutdown direction of the connection. Even if both sides
+    of a connection are shutdown, the state machine must still call
+    do_io_close() when it wishes the VConnection to be deallocated.
+
+    <b>Possible howto values</b>
+
+    <table border="1">
+      <tr>
+        <td align="center"><b>Value</b></td>
+        <td align="center"><b>Meaning</b></td>
+      </tr>
+      <tr>
+        <td>IO_SHUTDOWN_READ</td>
+        <td>Indicates that this VConnection should not generate any more
+        read events</td>
+      </tr>
+      <tr>
+        <td>IO_SHUTDOWN_WRITE</td>
+        <td>Indicates that this VConnection should not generate any more
+        write events</td>
+      </tr>
+      <tr>
+        <td>IO_SHUTDOWN_READWRITE</td>
+        <td>Indicates that this VConnection should not generate any more
+        read nor write events</td>
+      </tr>
+    </table>
+
+    @param howto Specifies which direction of the VConnection to
+      shutdown.
+
+  */
+  virtual void do_io_shutdown(ShutdownHowTo_t howto) = 0;
+
+    VConnection(ProxyMutex *aMutex);
+
+  /** @deprecated */
+  VIO *do_io(int op, Continuation *c = NULL, int64_t nbytes = INT64_MAX, MIOBuffer *buf = 0, int data = 0);
+
+  // Private
+  // Set continuation on a given vio. The public interface
+  // is through VIO::set_continuation()
+  virtual void set_continuation(VIO *vio, Continuation *cont);
+
+  // Reenable a given vio.  The public interface is through VIO::reenable
+  virtual void reenable(VIO *vio);
+  virtual void reenable_re(VIO *vio);
+
+  /**
+    Convenience function to retrieve information from VConnection.
+
+    This function is provided as a convenience for state machines
+    to transmit information from/to a VConnection without breaking
+    the VConnection abstraction. Its behavior varies depending on
+    the type of VConnection being used.
+
+    @param id Identifier associated to interpret the data field
+    @param data Value or pointer with state machine or VConnection data.
+    @return True if the oparation is successful.
+
+  */
+  virtual bool get_data(int id, void *data)
+  {
+    (void) id;
+    (void) data;
+    return false;
+  }
+
+  /**
+    Convenience function to set information into the VConnection.
+
+    This function is provided as a convenience for state machines
+    to transmit information from/to a VConnection without breaking
+    the VConnection abstraction. Its behavior varies depending on
+    the type of VConnection being used.
+
+    @param id Identifier associated to interpret the data field.
+    @param data Value or pointer with state machine or VConnection data.
+    @return True if the oparation is successful.
+
+  */
+  virtual bool set_data(int id, void *data)
+  {
+    (void) id;
+    (void) data;
+    return false;
+  }
+
+public:
+
+  /**
+    The error code from the last error.
+
+    Indicates the last error on the VConnection. They are either
+    system error codes or from the InkErrno.h file.
+
+  */
+  int lerrno;
+};
+
+struct DummyVConnection: public VConnection
+{
+  virtual VIO *do_io_write(Continuation * /* c ATS_UNUSED */, int64_t /* nbytes ATS_UNUSED */, IOBufferReader * /* buf ATS_UNUSED */, bool /* owner ATS_UNUSED */) {
+    ink_assert(!"VConnection::do_io_write -- " "cannot use default implementation");
+    return NULL;
+  }
+  virtual VIO *do_io_read(Continuation * /* c ATS_UNUSED */, int64_t /* nbytes ATS_UNUSED */, MIOBuffer * /* buf ATS_UNUSED */) {
+    ink_assert(!"VConnection::do_io_read -- " "cannot use default implementation");
+    return NULL;
+  }
+  virtual void do_io_close(int /* alerrno ATS_UNUSED */) {
+    ink_assert(!"VConnection::do_io_close -- " "cannot use default implementation");
+  }
+  virtual void do_io_shutdown(ShutdownHowTo_t /* howto ATS_UNUSED */ )
+  {
+    ink_assert(!"VConnection::do_io_shutdown -- " "cannot use default implementation");
+  }
+DummyVConnection(ProxyMutex *m):VConnection(m) {
+  }
+};
+
+#endif /*_I_VConnection_h_*/
diff --git a/iocore/eventsystem/I_VIO.h b/iocore/eventsystem/I_VIO.h
new file mode 100644
index 00000000..78873398
--- /dev/null
+++ b/iocore/eventsystem/I_VIO.h
@@ -0,0 +1,220 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#if !defined (I_VIO_h)
+#define I_VIO_h
+
+#include "libts.h"
+#include "I_EventSystem.h"
+#if !defined(I_IOBuffer_h)
+#error "include I_IOBuffer.h"
+-- -include I_IOBuffer.h
+#endif
+#include "ink_apidefs.h"
+  class Continuation;
+class VConnection;
+class IOVConnection;
+class MIOBuffer;
+class ProxyMutex;
+
+/**
+  Descriptor for an IO operation.
+
+  A VIO is a descriptor for an in progress IO operation. It is
+  returned from do_io_read() and do_io_write() methods on VConnections.
+  Through the VIO, the state machine can monitor the progress of
+  an operation and reenable the operation when data becomes available.
+
+  The VIO operation represents several types of operations, and
+  they can be identified through the 'op' member. It can take any
+  of the following values:
+
+  <table>
+    <tr>
+      <td align="center"><b>Constant</b></td>
+      <td align="center"><b>Meaning</b></td>
+    </tr>
+    <tr><td>READ</td><td>The VIO represents a read operation</td></tr>
+    <tr><td>WRITE</td><td>The VIO represents a write operation</td></tr>
+    <tr><td>CLOSE</td><td>The VIO represents the request to close the
+                          VConnection</td></tr>
+    <tr><td>ABORT</td><td></td></tr>
+    <tr><td>SHUTDOWN_READ</td><td></td></tr>
+    <tr><td>SHUTDOWN_WRITE</td><td></td></tr>
+    <tr><td>SHUTDOWN_READWRITE</td><td></td></tr>
+    <tr><td>SEEK</td><td></td></tr>
+    <tr><td>PREAD</td><td></td></tr>
+    <tr><td>PWRITE</td><td></td></tr>
+    <tr><td>STAT</td><td></td></tr>
+  </table>
+
+*/
+class VIO
+{
+public:
+  ~VIO()
+  {
+  }
+
+  /** Interface for the VConnection that owns this handle. */
+  Continuation *get_continuation();
+  void set_continuation(Continuation * cont);
+
+  /**
+    Set nbytes to be what is current available.
+
+    Interface to set nbytes to be ndone + buffer.reader()->read_avail()
+    if a reader is set.
+  */
+  void done();
+
+  /**
+    Determine the number of bytes remaining.
+
+    Convenience function to determine how many bytes the operation
+    has remaining.
+
+    @return The number of bytes to be processed by the operation.
+
+  */
+  int64_t ntodo();
+
+  /////////////////////
+  // buffer settings //
+  /////////////////////
+  void set_writer(MIOBuffer * writer);
+  void set_reader(IOBufferReader * reader);
+  MIOBuffer *get_writer();
+  IOBufferReader *get_reader();
+
+  /**
+    Reenable the IO operation.
+
+    Interface that the state machine uses to reenable an I/O
+    operation.  Reenable tells the VConnection that more data is
+    available for the operation and that it should try to continue
+    the operation in progress.  I/O operations become disabled when
+    they can make no forward progress.  For a read this means that
+    it's buffer is full. For a write, that it's buffer is empty.
+    If reenable is called and progress is still not possible, it
+    is ignored and no events are generated. However, unnecessary
+    reenables (ones where no progress can be made) should be avoided
+    as they hurt system throughput and waste CPU.
+
+  */
+  inkcoreapi void reenable();
+
+  /**
+    Reenable the IO operation.
+
+    Interface that the state machine uses to reenable an I/O
+    operation.  Reenable tells the VConnection that more data is
+    available for the operation and that it should try to continue
+    the operation in progress.  I/O operations become disabled when
+    they can make no forward progress.  For a read this means that
+    it's buffer is full. For a write, that it's buffer is empty.
+    If reenable is called and progress is still not possible, it
+    is ignored and no events are generated. However, unnecessary
+    reenables (ones where no progress can be made) should be avoided
+    as they hurt system throughput and waste CPU.
+
+  */
+  inkcoreapi void reenable_re();
+
+  VIO(int aop);
+  VIO();
+
+  enum
+  {
+    NONE = 0, READ, WRITE, CLOSE, ABORT,
+    SHUTDOWN_READ, SHUTDOWN_WRITE, SHUTDOWN_READWRITE,
+    SEEK, PREAD, PWRITE, STAT
+  };
+
+public:
+
+  /**
+    Continuation to callback.
+
+    Used by the VConnection to store who is the continuation to
+    call with events for this operation.
+
+  */
+  Continuation * _cont;
+
+  /**
+    Number of bytes to be done for this operation.
+
+    The total number of bytes this operation must complete.
+
+  */
+  int64_t nbytes;
+
+  /**
+    Number of bytes already completed.
+
+    The number of bytes that already have been completed for the
+    operation. Processor can update this value only if they hold
+    the lock.
+
+  */
+  int64_t ndone;
+
+  /**
+    Type of operation.
+
+    The type of operation that this VIO represents.
+
+  */
+  int op;
+
+  /**
+    Provides access to the reader or writer for this operation.
+
+    Contains a pointer to the IOBufferReader if the operation is a
+    write and a pointer to a MIOBuffer if the operation is a read.
+
+  */
+  MIOBufferAccessor buffer;
+
+  /**
+    Internal backpointer to the VConnection for use in the reenable
+    functions.
+
+  */
+  VConnection *vc_server;
+
+  /**
+    Reference to the state machine's mutex.
+
+    Maintains a reference to the state machine's mutex to allow
+    processors to safely lock the operation even if the state machine
+    has closed the VConnection and deallocated itself.
+
+  */
+  Ptr<ProxyMutex> mutex;
+};
+
+#include "I_VConnection.h"
+#endif
diff --git a/iocore/eventsystem/Inline.cc b/iocore/eventsystem/Inline.cc
new file mode 100644
index 00000000..87d810e6
--- /dev/null
+++ b/iocore/eventsystem/Inline.cc
@@ -0,0 +1,31 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using the public interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_EventSystem.h"
+
diff --git a/iocore/eventsystem/Lock.cc b/iocore/eventsystem/Lock.cc
new file mode 100644
index 00000000..8f9ee346
--- /dev/null
+++ b/iocore/eventsystem/Lock.cc
@@ -0,0 +1,112 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Basic Locks for Threads
+
+
+
+**************************************************************************/
+#include "P_EventSystem.h"
+
+ClassAllocator<ProxyMutex> mutexAllocator("mutexAllocator");
+
+// #define ERROR_CONFIG_TAG_LOCKS
+
+#ifdef ERROR_CONFIG_TAG_LOCKS
+#include "Diags.h"
+#endif
+
+#ifdef DEBUG  // debug build needs lock_* functions
+#undef INK_NO_LOCKS
+#endif
+
+void
+lock_waiting(const char *file, int line, const char *handler)
+{
+  (void) file;
+  (void) line;
+  (void) handler;
+#ifdef ERROR_CONFIG_TAG_LOCKS
+  if (is_diags_on("locks"))
+    fprintf(stderr, "WARNING: waiting on lock %s:%d for %s\n",
+            file ? file : "UNKNOWN", line, handler ? handler : "UNKNOWN");
+#endif
+}
+
+void
+lock_holding(const char *file, int line, const char *handler)
+{
+  (void) file;
+  (void) line;
+  (void) handler;
+#ifdef ERROR_CONFIG_TAG_LOCKS
+  if (is_diags_on("locks"))
+    fprintf(stderr, "WARNING: holding lock %s:%d too long for %s\n",
+            file ? file : "UNKNOWN", line, handler ? handler : "UNKNOWN");
+#endif
+}
+
+void
+lock_taken(const char *file, int line, const char *handler)
+{
+  (void) file;
+  (void) line;
+  (void) handler;
+#ifdef ERROR_CONFIG_TAG_LOCKS
+  if (is_diags_on("locks"))
+    fprintf(stderr, "WARNING: lock %s:%d taken too many times for %s\n",
+            file ? file : "UNKNOWN", line, handler ? handler : "UNKNOWN");
+#endif
+}
+
+#ifdef LOCK_CONTENTION_PROFILING
+void
+ProxyMutex::print_lock_stats(int flag)
+{
+  if (flag) {
+    if (total_acquires < 10)
+      return;
+    printf("Lock Stats (Dying):successful %d (%.2f%%), unsuccessful %d (%.2f%%) blocking %d \n",
+           successful_nonblocking_acquires,
+           (nonblocking_acquires > 0 ?
+            successful_nonblocking_acquires * 100.0 / nonblocking_acquires : 0.0),
+           unsuccessful_nonblocking_acquires,
+           (nonblocking_acquires > 0 ?
+            unsuccessful_nonblocking_acquires * 100.0 / nonblocking_acquires : 0.0), blocking_acquires);
+    fflush(stdout);
+  } else {
+    if (!(total_acquires % 100)) {
+      printf("Lock Stats (Alive):successful %d (%.2f%%), unsuccessful %d (%.2f%%) blocking %d \n",
+             successful_nonblocking_acquires,
+             (nonblocking_acquires > 0 ?
+              successful_nonblocking_acquires * 100.0 / nonblocking_acquires : 0.0),
+             unsuccessful_nonblocking_acquires,
+             (nonblocking_acquires > 0 ?
+              unsuccessful_nonblocking_acquires * 100.0 / nonblocking_acquires : 0.0), blocking_acquires);
+      fflush(stdout);
+    }
+  }
+}
+#endif //LOCK_CONTENTION_PROFILING
diff --git a/iocore/eventsystem/Makefile.am b/iocore/eventsystem/Makefile.am
new file mode 100644
index 00000000..cfa77e1e
--- /dev/null
+++ b/iocore/eventsystem/Makefile.am
@@ -0,0 +1,113 @@
+# Makefile.am for the traffic/iocore/eventsystem hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts
+
+TESTS = $(check_PROGRAMS)
+
+noinst_LIBRARIES = libinkevent.a
+
+libinkevent_a_SOURCES = \
+  EventSystem.cc \
+  IOBuffer.cc \
+  I_Action.h \
+  I_Continuation.h \
+  I_EThread.h \
+  I_Event.h \
+  I_EventProcessor.h \
+  I_EventSystem.h \
+  I_IOBuffer.h \
+  I_Lock.h \
+  I_PriorityEventQueue.h \
+  I_Processor.h \
+  I_ProtectedQueue.h \
+  I_ProxyAllocator.h \
+  I_SocketManager.h \
+  I_Tasks.h \
+  I_Thread.h \
+  I_VConnection.h \
+  I_VIO.h \
+  Inline.cc \
+  Lock.cc \
+  PQ-List.cc \
+  P_EventSystem.h \
+  P_Freer.h \
+  P_IOBuffer.h \
+  P_ProtectedQueue.h \
+  P_Thread.h \
+  P_UnixEThread.h \
+  P_UnixEvent.h \
+  P_UnixEventProcessor.h \
+  P_UnixSocketManager.h \
+  P_VConnection.h \
+  P_VIO.h \
+  Processor.cc \
+  ProtectedQueue.cc \
+  ProxyAllocator.cc \
+  SocketManager.cc \
+  Tasks.cc \
+  Thread.cc \
+  UnixEThread.cc \
+  UnixEvent.cc \
+  UnixEventProcessor.cc 
+
+check_PROGRAMS = test_Buffer test_Event
+
+test_CXXFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+test_LDADD = \
+  libinkevent.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/proxy/shared/libUglyLogStubs.a \
+  @LIBTCL@ @HWLOC_LIBS@
+
+test_Buffer_SOURCES = \
+  test_Buffer.cc
+
+#test_UNUSED_SOURCES = \
+#  test_I_Buffer.cc \
+#  test_P_Buffer.cc
+
+test_Event_SOURCES = \
+  test_Event.cc
+
+#test_UNUSED_SOURCES = \
+#  test_I_Event.cc \
+#  test_P_Event.cc
+
+test_Buffer_CXXFLAGS = $(test_CXXFLAGS)
+test_Event_CXXFLAGS = $(test_CXXFLAGS)
+
+test_Buffer_LDADD = $(test_LDADD)
+test_Event_LDADD = $(test_LDADD)
diff --git a/iocore/eventsystem/Makefile.in b/iocore/eventsystem/Makefile.in
new file mode 100644
index 00000000..6c0a89a3
--- /dev/null
+++ b/iocore/eventsystem/Makefile.in
@@ -0,0 +1,1412 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/eventsystem hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
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+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
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+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
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+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
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+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
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+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
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+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
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+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
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+program_transform_name = @program_transform_name@
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+pthread_nph = @pthread_nph@
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+readline_readlineh = @readline_readlineh@
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+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts
+
+TESTS = $(check_PROGRAMS)
+noinst_LIBRARIES = libinkevent.a
+libinkevent_a_SOURCES = \
+  EventSystem.cc \
+  IOBuffer.cc \
+  I_Action.h \
+  I_Continuation.h \
+  I_EThread.h \
+  I_Event.h \
+  I_EventProcessor.h \
+  I_EventSystem.h \
+  I_IOBuffer.h \
+  I_Lock.h \
+  I_PriorityEventQueue.h \
+  I_Processor.h \
+  I_ProtectedQueue.h \
+  I_ProxyAllocator.h \
+  I_SocketManager.h \
+  I_Tasks.h \
+  I_Thread.h \
+  I_VConnection.h \
+  I_VIO.h \
+  Inline.cc \
+  Lock.cc \
+  PQ-List.cc \
+  P_EventSystem.h \
+  P_Freer.h \
+  P_IOBuffer.h \
+  P_ProtectedQueue.h \
+  P_Thread.h \
+  P_UnixEThread.h \
+  P_UnixEvent.h \
+  P_UnixEventProcessor.h \
+  P_UnixSocketManager.h \
+  P_VConnection.h \
+  P_VIO.h \
+  Processor.cc \
+  ProtectedQueue.cc \
+  ProxyAllocator.cc \
+  SocketManager.cc \
+  Tasks.cc \
+  Thread.cc \
+  UnixEThread.cc \
+  UnixEvent.cc \
+  UnixEventProcessor.cc 
+
+test_CXXFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+test_LDADD = \
+  libinkevent.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/proxy/shared/libUglyLogStubs.a \
+  @LIBTCL@ @HWLOC_LIBS@
+
+test_Buffer_SOURCES = \
+  test_Buffer.cc
+
+
+#test_UNUSED_SOURCES = \
+#  test_I_Buffer.cc \
+#  test_P_Buffer.cc
+test_Event_SOURCES = \
+  test_Event.cc
+
+
+#test_UNUSED_SOURCES = \
+#  test_I_Event.cc \
+#  test_P_Event.cc
+test_Buffer_CXXFLAGS = $(test_CXXFLAGS)
+test_Event_CXXFLAGS = $(test_CXXFLAGS)
+test_Buffer_LDADD = $(test_LDADD)
+test_Event_LDADD = $(test_LDADD)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign iocore/eventsystem/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign iocore/eventsystem/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libinkevent.a: $(libinkevent_a_OBJECTS) $(libinkevent_a_DEPENDENCIES) $(EXTRA_libinkevent_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libinkevent.a
+	$(AM_V_AR)$(libinkevent_a_AR) libinkevent.a $(libinkevent_a_OBJECTS) $(libinkevent_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libinkevent.a
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+test_Buffer$(EXEEXT): $(test_Buffer_OBJECTS) $(test_Buffer_DEPENDENCIES) $(EXTRA_test_Buffer_DEPENDENCIES) 
+	@rm -f test_Buffer$(EXEEXT)
+	$(AM_V_CXXLD)$(test_Buffer_LINK) $(test_Buffer_OBJECTS) $(test_Buffer_LDADD) $(LIBS)
+
+test_Event$(EXEEXT): $(test_Event_OBJECTS) $(test_Event_DEPENDENCIES) $(EXTRA_test_Event_DEPENDENCIES) 
+	@rm -f test_Event$(EXEEXT)
+	$(AM_V_CXXLD)$(test_Event_LINK) $(test_Event_OBJECTS) $(test_Event_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/EventSystem.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/IOBuffer.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Inline.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Lock.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/PQ-List.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Processor.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ProtectedQueue.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ProxyAllocator.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/SocketManager.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Tasks.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Thread.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UnixEThread.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UnixEvent.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UnixEventProcessor.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test_Buffer-test_Buffer.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/test_Event-test_Event.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+test_Buffer-test_Buffer.o: test_Buffer.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(test_Buffer_CXXFLAGS) $(CXXFLAGS) -MT test_Buffer-test_Buffer.o -MD -MP -MF $(DEPDIR)/test_Buffer-test_Buffer.Tpo -c -o test_Buffer-test_Buffer.o `test -f 'test_Buffer.cc' || echo '$(srcdir)/'`test_Buffer.cc
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/test_Buffer-test_Buffer.Tpo $(DEPDIR)/test_Buffer-test_Buffer.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='test_Buffer.cc' object='test_Buffer-test_Buffer.o' libtool=no @AMDEPBACKSLASH@
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+	  if test -f "$$i"; then \
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+# Recover from deleted '.trs' file; this should ensure that
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
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+	  fi; \
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+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
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+	clean-noinstLIBRARIES cscopelist-am ctags ctags-am distclean \
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
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diff --git a/iocore/eventsystem/PQ-List.cc b/iocore/eventsystem/PQ-List.cc
new file mode 100644
index 00000000..483b6b1a
--- /dev/null
+++ b/iocore/eventsystem/PQ-List.cc
@@ -0,0 +1,63 @@
+/** @file
+
+  Queue of Events sorted by the "timeout_at" field impl as binary heap
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"
+
+PriorityEventQueue::PriorityEventQueue()
+{
+  last_check_time = ink_get_based_hrtime_internal();
+  last_check_buckets = last_check_time / PQ_BUCKET_TIME(0);
+}
+
+void
+PriorityEventQueue::check_ready(ink_hrtime now, EThread * t)
+{
+  int i, j, k = 0;
+  uint32_t check_buckets = (uint32_t) (now / PQ_BUCKET_TIME(0));
+  uint32_t todo_buckets = check_buckets ^ last_check_buckets;
+  last_check_time = now;
+  last_check_buckets = check_buckets;
+  todo_buckets &= ((1 << (N_PQ_LIST - 1)) - 1);
+  while (todo_buckets) {
+    k++;
+    todo_buckets >>= 1;
+  }
+  for (i = 1; i <= k; i++) {
+    Event *e;
+    Que(Event, link) q = after[i];
+    after[i].clear();
+    while ((e = q.dequeue()) != NULL) {
+      if (e->cancelled) {
+        e->in_the_priority_queue = 0;
+        e->cancelled = 0;
+        EVENT_FREE(e, eventAllocator, t);
+      } else {
+        ink_hrtime tt = e->timeout_at - now;
+        for (j = i; j > 0 && tt <= PQ_BUCKET_TIME(j - 1);)
+          j--;
+        e->in_heap = j;
+        after[j].enqueue(e);
+      }
+    }
+  }
+}
diff --git a/iocore/eventsystem/P_EventSystem.h b/iocore/eventsystem/P_EventSystem.h
new file mode 100644
index 00000000..d54e9162
--- /dev/null
+++ b/iocore/eventsystem/P_EventSystem.h
@@ -0,0 +1,54 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Event Subsystem
+
+
+
+**************************************************************************/
+#ifndef _P_EventSystem_h
+#define _P_EventSystem_h
+
+#include "libts.h"
+
+#include "I_EventSystem.h"
+
+#include "P_Thread.h"
+#include "P_VIO.h"
+#include "P_IOBuffer.h"
+#include "P_VConnection.h"
+#include "P_Freer.h"
+#include "P_UnixEvent.h"
+#include "P_UnixEThread.h"
+#include "P_ProtectedQueue.h"
+#include "P_UnixEventProcessor.h"
+#include "P_UnixSocketManager.h"
+#undef  EVENT_SYSTEM_MODULE_VERSION
+#define EVENT_SYSTEM_MODULE_VERSION makeModuleVersion(                    \
+                                       EVENT_SYSTEM_MODULE_MAJOR_VERSION, \
+                                       EVENT_SYSTEM_MODULE_MINOR_VERSION, \
+                                       PRIVATE_MODULE_HEADER)
+
+#endif
diff --git a/iocore/eventsystem/P_Freer.h b/iocore/eventsystem/P_Freer.h
new file mode 100644
index 00000000..391f0ecc
--- /dev/null
+++ b/iocore/eventsystem/P_Freer.h
@@ -0,0 +1,138 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined(_P_Freer_h_)
+#define _P_Freer_h_
+
+#include "libts.h"
+#include "I_Tasks.h"
+
+// Note that these should not be used for memory that wishes to retain
+// NUMA socket affinity. We'll potentially return these on an arbitarily
+// selected processor/socket.
+
+template<class C> struct DeleterContinuation: public Continuation
+{
+public:                        // Needed by WinNT compiler (compiler bug)
+  C * p;
+  int dieEvent(int event, void *e)
+  {
+    (void) event;
+    (void) e;
+    if (p)
+      delete p;
+    delete this;
+      return EVENT_DONE;
+  }
+  DeleterContinuation(C * ap):Continuation(new_ProxyMutex()), p(ap)
+  {
+    SET_HANDLER(&DeleterContinuation::dieEvent);
+  }
+};
+
+template<class C> TS_INLINE void
+new_Deleter(C * ap, ink_hrtime t)
+{
+  eventProcessor.schedule_in(new DeleterContinuation<C> (ap), t, ET_TASK);
+}
+
+template<class C> struct FreeCallContinuation: public Continuation
+{
+public:                        // Needed by WinNT compiler (compiler bug)
+  C * p;
+  int dieEvent(int event, void *e)
+  {
+    (void) event;
+    (void) e;
+    p->free();
+    delete this;
+      return EVENT_DONE;
+  }
+  FreeCallContinuation(C * ap):Continuation(NULL), p(ap)
+  {
+    SET_HANDLER(&FreeCallContinuation::dieEvent);
+  }
+};
+
+template<class C> TS_INLINE void
+new_FreeCaller(C * ap, ink_hrtime t)
+{
+  eventProcessor.schedule_in(new FreeCallContinuation<C> (ap), t, ET_TASK);
+}
+
+struct FreerContinuation;
+typedef int (FreerContinuation::*FreerContHandler) (int, void *);
+
+struct FreerContinuation: public Continuation
+{
+  void *p;
+
+  int dieEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    ats_free(p);
+    delete this;
+    return EVENT_DONE;
+  }
+
+  FreerContinuation(void *ap):Continuation(NULL), p(ap)
+  {
+    SET_HANDLER((FreerContHandler) & FreerContinuation::dieEvent);
+  }
+};
+
+TS_INLINE void
+new_Freer(void *ap, ink_hrtime t)
+{
+  eventProcessor.schedule_in(new FreerContinuation(ap), t, ET_TASK);
+}
+
+template<class C> struct DereferContinuation: public Continuation
+{
+  C *p;
+
+  int dieEvent(int, Event *)
+  {
+    p->refcount_dec();
+    if (REF_COUNT_OBJ_REFCOUNT_DEC(p) == 0) {
+      delete p;
+    }
+
+    delete this;
+    return EVENT_DONE;
+  }
+
+  DereferContinuation(C * ap):Continuation(NULL), p(ap)
+  {
+    SET_HANDLER(&DereferContinuation::dieEvent);
+  }
+};
+
+template<class C> TS_INLINE void
+new_Derefer(C * ap, ink_hrtime t)
+{
+  eventProcessor.schedule_in(new DereferContinuation<C> (ap), t, ET_TASK);
+}
+
+#endif /* _Freer_h_ */
diff --git a/iocore/eventsystem/P_IOBuffer.h b/iocore/eventsystem/P_IOBuffer.h
new file mode 100644
index 00000000..55b8add1
--- /dev/null
+++ b/iocore/eventsystem/P_IOBuffer.h
@@ -0,0 +1,1199 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#if !defined (_P_IOBuffer_h)
+#define _P_IOBuffer_h
+
+#include "libts.h"
+#include "ink_resource.h"
+
+
+// TODO: I think we're overly aggressive here on making MIOBuffer 64-bit
+// but not sure it's worthwhile changing anything to 32-bit honestly.
+
+//////////////////////////////////////////////////////////////
+//
+// returns 0 for DEFAULT_BUFFER_BASE_SIZE,
+// +1 for each power of 2
+//
+//////////////////////////////////////////////////////////////
+TS_INLINE int64_t
+buffer_size_to_index(int64_t size, int64_t max = max_iobuffer_size)
+{
+  int64_t r = max;
+
+  while (r && BUFFER_SIZE_FOR_INDEX(r - 1) >= size)
+    r--;
+  return r;
+}
+
+TS_INLINE int64_t
+iobuffer_size_to_index(int64_t size, int64_t max)
+{
+  if (size > BUFFER_SIZE_FOR_INDEX(max))
+    return BUFFER_SIZE_INDEX_FOR_XMALLOC_SIZE(size);
+  return buffer_size_to_index(size, max);
+}
+
+TS_INLINE int64_t
+index_to_buffer_size(int64_t idx)
+{
+  if (BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(idx))
+    return BUFFER_SIZE_FOR_INDEX(idx);
+  else if (BUFFER_SIZE_INDEX_IS_XMALLOCED(idx))
+    return BUFFER_SIZE_FOR_XMALLOC(idx);
+  // coverity[dead_error_condition]
+  else if (BUFFER_SIZE_INDEX_IS_CONSTANT(idx))
+    return BUFFER_SIZE_FOR_CONSTANT(idx);
+  // coverity[dead_error_line]
+  return 0;
+}
+
+TS_INLINE IOBufferBlock *
+iobufferblock_clone(IOBufferBlock * b, int64_t offset, int64_t len)
+{
+
+  IOBufferBlock *start_buf = NULL;
+  IOBufferBlock *current_buf = NULL;
+
+  while (b && len >= 0) {
+    char *start = b->_start;
+    char *end = b->_end;
+    int64_t max_bytes = end - start;
+    max_bytes -= offset;
+    if (max_bytes <= 0) {
+      offset = -max_bytes;
+      b = b->next;
+      continue;
+    }
+    int64_t bytes = len;
+    if (bytes >= max_bytes)
+      bytes = max_bytes;
+    IOBufferBlock *new_buf = b->clone();
+    new_buf->_start += offset;
+    new_buf->_buf_end = new_buf->_end = new_buf->_start + bytes;
+    if (!start_buf) {
+      start_buf = new_buf;
+      current_buf = start_buf;
+    } else {
+      current_buf->next = new_buf;
+      current_buf = new_buf;
+    }
+    len -= bytes;
+    b = b->next;
+    offset = 0;
+  }
+  return start_buf;
+}
+
+TS_INLINE IOBufferBlock *
+iobufferblock_skip(IOBufferBlock * b, int64_t *poffset, int64_t *plen, int64_t write)
+{
+  int64_t offset = *poffset;
+  int64_t len = write;
+  while (b && len >= 0) {
+    int64_t max_bytes = b->read_avail();
+    max_bytes -= offset;
+    if (max_bytes <= 0) {
+      offset = -max_bytes;
+      b = b->next;
+      continue;
+    }
+    if (len >= max_bytes) {
+      b = b->next;
+      len -= max_bytes;
+      offset = 0;
+    } else {
+      offset = offset + len;
+      break;
+    }
+  }
+  *poffset = offset;
+  *plen -= write;
+  return b;
+}
+
+#ifdef TRACK_BUFFER_USER
+extern Resource *res_lookup(const char *path);
+
+TS_INLINE void
+iobuffer_mem_inc(const char *_loc, int64_t _size_index)
+{
+  if (!res_track_memory)
+    return;
+
+  if (!BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(_size_index))
+    return;
+
+  if (!_loc)
+    _loc = "memory/IOBuffer/UNKNOWN-LOCATION";
+  Resource *res = res_lookup(_loc);
+  ink_assert(strcmp(_loc, res->path) == 0);
+#ifdef DEBUG  
+  int64_t r = ink_atomic_increment(&res->value, index_to_buffer_size(_size_index));
+  ink_assert(r >= 0);
+#else
+  ink_atomic_increment(&res->value, index_to_buffer_size(_size_index));
+#endif
+}
+
+TS_INLINE void
+iobuffer_mem_dec(const char *_loc, int64_t _size_index)
+{
+  if (!res_track_memory)
+    return;
+
+  if (!BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(_size_index))
+    return;
+  if (!_loc)
+    _loc = "memory/IOBuffer/UNKNOWN-LOCATION";
+  Resource *res = res_lookup(_loc);
+  ink_assert(strcmp(_loc, res->path) == 0);
+#ifdef DEBUG  
+  int64_t r = ink_atomic_increment(&res->value, -index_to_buffer_size(_size_index));
+  ink_assert(r >= index_to_buffer_size(_size_index));
+#else
+  ink_atomic_increment(&res->value, -index_to_buffer_size(_size_index));
+#endif
+}
+#endif
+
+//////////////////////////////////////////////////////////////////
+//
+// inline functions definitions
+//
+//////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////
+//
+//  class IOBufferData --
+//         inline functions definitions
+//
+//////////////////////////////////////////////////////////////////
+TS_INLINE int64_t
+IOBufferData::block_size()
+{
+  return index_to_buffer_size(_size_index);
+}
+
+TS_INLINE IOBufferData *
+new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                           const char *location,
+#endif
+                           void *b, int64_t size, int64_t asize_index)
+{
+  (void) size;
+  IOBufferData *d = THREAD_ALLOC(ioDataAllocator, this_thread());
+  d->_size_index = asize_index;
+  ink_assert(BUFFER_SIZE_INDEX_IS_CONSTANT(asize_index)
+             || size <= d->block_size());
+#ifdef TRACK_BUFFER_USER
+  d->_location = location;
+#endif
+  d->_data = (char *) b;
+  return d;
+}
+
+TS_INLINE IOBufferData *
+new_constant_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                                    const char *loc,
+#endif
+                                    void *b, int64_t size)
+{
+  return new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                                    loc,
+#endif
+                                    b, size, BUFFER_SIZE_INDEX_FOR_CONSTANT_SIZE(size));
+}
+
+TS_INLINE IOBufferData *
+new_xmalloc_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                                   const char *location,
+#endif
+                                   void *b, int64_t size)
+{
+  return new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                                    location,
+#endif
+                                    b, size, BUFFER_SIZE_INDEX_FOR_XMALLOC_SIZE(size));
+}
+
+TS_INLINE IOBufferData *
+new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                           const char *location,
+#endif
+                           void *b, int64_t size)
+{
+  return new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                                    location,
+#endif
+                                    b, size, iobuffer_size_to_index(size));
+}
+
+TS_INLINE IOBufferData *
+new_IOBufferData_internal(
+#ifdef TRACK_BUFFER_USER
+                           const char *loc,
+#endif
+                           int64_t size_index, AllocType type)
+{
+  IOBufferData *d = THREAD_ALLOC(ioDataAllocator, this_thread());
+#ifdef TRACK_BUFFER_USER
+  d->_location = loc;
+#endif
+  d->alloc(size_index, type);
+  return d;
+}
+
+// IRIX has a compiler bug which prevents this function
+// from being compiled correctly at -O3
+// so it is DUPLICATED in IOBuffer.cc
+// ****** IF YOU CHANGE THIS FUNCTION change that one as well.
+TS_INLINE void
+IOBufferData::alloc(int64_t size_index, AllocType type)
+{
+  if (_data)
+    dealloc();
+  _size_index = size_index;
+  _mem_type = type;
+#ifdef TRACK_BUFFER_USER
+  iobuffer_mem_inc(_location, size_index);
+#endif
+  switch (type) {
+  case MEMALIGNED:
+    if (BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(size_index))
+      _data = (char *) ioBufAllocator[size_index].alloc_void();
+    // coverity[dead_error_condition]
+    else if (BUFFER_SIZE_INDEX_IS_XMALLOCED(size_index))
+      _data = (char *)ats_memalign(ats_pagesize(), index_to_buffer_size(size_index));
+    break;
+  default:
+  case DEFAULT_ALLOC:
+    if (BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(size_index))
+      _data = (char *) ioBufAllocator[size_index].alloc_void();
+    else if (BUFFER_SIZE_INDEX_IS_XMALLOCED(size_index))
+      _data = (char *)ats_malloc(BUFFER_SIZE_FOR_XMALLOC(size_index));
+    break;
+  }
+}
+
+// ****** IF YOU CHANGE THIS FUNCTION change that one as well.
+
+
+TS_INLINE void
+IOBufferData::dealloc()
+{
+#ifdef TRACK_BUFFER_USER
+  iobuffer_mem_dec(_location, _size_index);
+#endif
+  switch (_mem_type) {
+  case MEMALIGNED:
+    if (BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(_size_index))
+      ioBufAllocator[_size_index].free_void(_data);
+    else if (BUFFER_SIZE_INDEX_IS_XMALLOCED(_size_index))
+      ::free((void *) _data);
+    break;
+  default:
+  case DEFAULT_ALLOC:
+    if (BUFFER_SIZE_INDEX_IS_FAST_ALLOCATED(_size_index))
+      ioBufAllocator[_size_index].free_void(_data);
+    else if (BUFFER_SIZE_INDEX_IS_XMALLOCED(_size_index))
+      ats_free(_data);
+    break;
+  }
+  _data = 0;
+  _size_index = BUFFER_SIZE_NOT_ALLOCATED;
+  _mem_type = NO_ALLOC;
+}
+
+TS_INLINE void
+IOBufferData::free()
+{
+  dealloc();
+  THREAD_FREE(this, ioDataAllocator, this_thread());
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  class IOBufferBlock --
+//         inline functions definitions
+//
+//////////////////////////////////////////////////////////////////
+TS_INLINE IOBufferBlock *
+new_IOBufferBlock_internal(
+#ifdef TRACK_BUFFER_USER
+                            const char *location
+#endif
+  )
+{
+  IOBufferBlock *b = THREAD_ALLOC(ioBlockAllocator, this_thread());
+#ifdef TRACK_BUFFER_USER
+  b->_location = location;
+#endif
+  return b;
+}
+
+TS_INLINE IOBufferBlock *
+new_IOBufferBlock_internal(
+#ifdef TRACK_BUFFER_USER
+                            const char *location,
+#endif
+                            IOBufferData * d, int64_t len, int64_t offset)
+{
+  IOBufferBlock *b = THREAD_ALLOC(ioBlockAllocator, this_thread());
+#ifdef TRACK_BUFFER_USER
+  b->_location = location;
+#endif
+  b->set(d, len, offset);
+  return b;
+}
+
+TS_INLINE
+IOBufferBlock::IOBufferBlock():
+_start(0),
+_end(0),
+_buf_end(0)
+#ifdef TRACK_BUFFER_USER
+,
+_location(0)
+#endif
+{
+  return;
+}
+
+TS_INLINE void
+IOBufferBlock::consume(int64_t len)
+{
+  _start += len;
+  ink_assert(_start <= _end);
+}
+
+TS_INLINE void
+IOBufferBlock::fill(int64_t len)
+{
+  _end += len;
+  ink_assert(_end <= _buf_end);
+}
+
+TS_INLINE void
+IOBufferBlock::reset()
+{
+  _end = _start = buf();
+  _buf_end = buf() + data->block_size();
+}
+
+TS_INLINE void
+IOBufferBlock::alloc(int64_t i)
+{
+  ink_assert(BUFFER_SIZE_ALLOCATED(i));
+#ifdef TRACK_BUFFER_USER
+  data = new_IOBufferData_internal(_location, i);
+#else
+  data = new_IOBufferData_internal(i);
+#endif
+  reset();
+}
+
+TS_INLINE void
+IOBufferBlock::clear()
+{
+  data = NULL;
+  IOBufferBlock *p = next;
+  while (p) {
+    int r = p->refcount_dec();
+    if (r)
+      break;
+    else {
+      IOBufferBlock *n = p->next.m_ptr;
+      p->next.m_ptr = NULL;
+      p->free();
+      p = n;
+    }
+  }
+  next.m_ptr = NULL;
+  _buf_end = _end = _start = NULL;
+}
+
+TS_INLINE IOBufferBlock *
+IOBufferBlock::clone()
+{
+#ifdef TRACK_BUFFER_USER
+  IOBufferBlock *b = new_IOBufferBlock_internal(_location);
+#else
+  IOBufferBlock *b = new_IOBufferBlock_internal();
+#endif
+  b->data = data;
+  b->_start = _start;
+  b->_end = _end;
+  b->_buf_end = _end;
+#ifdef TRACK_BUFFER_USER
+  b->_location = _location;
+#endif
+  return b;
+}
+
+TS_INLINE void
+IOBufferBlock::dealloc()
+{
+  clear();
+}
+
+TS_INLINE void
+IOBufferBlock::free()
+{
+  dealloc();
+  THREAD_FREE(this, ioBlockAllocator, this_thread());
+}
+
+TS_INLINE void
+IOBufferBlock::set_internal(void *b, int64_t len, int64_t asize_index)
+{
+#ifdef TRACK_BUFFER_USER
+  data = new_IOBufferData_internal(_location, BUFFER_SIZE_NOT_ALLOCATED);
+#else
+  data = new_IOBufferData_internal(BUFFER_SIZE_NOT_ALLOCATED);
+#endif
+  data->_data = (char *) b;
+#ifdef TRACK_BUFFER_USER
+  iobuffer_mem_inc(_location, asize_index);
+#endif
+  data->_size_index = asize_index;
+  reset();
+  _end = _start + len;
+}
+
+TS_INLINE void
+IOBufferBlock::set(IOBufferData * d, int64_t len, int64_t offset)
+{
+  data = d;
+  _start = buf() + offset;
+  _end = _start + len;
+  _buf_end = _start + d->block_size();
+}
+
+TS_INLINE void
+IOBufferBlock::realloc_set_internal(void *b, int64_t buf_size, int64_t asize_index)
+{
+  int64_t data_size = size();
+  memcpy(b, _start, size());
+  dealloc();
+  set_internal(b, buf_size, asize_index);
+  _end = _start + data_size;
+}
+
+TS_INLINE void
+IOBufferBlock::realloc(void *b, int64_t buf_size)
+{
+  realloc_set_internal(b, buf_size, BUFFER_SIZE_NOT_ALLOCATED);
+}
+
+TS_INLINE void
+IOBufferBlock::realloc_xmalloc(void *b, int64_t buf_size)
+{
+  realloc_set_internal(b, buf_size, -buf_size);
+}
+
+TS_INLINE void
+IOBufferBlock::realloc_xmalloc(int64_t buf_size)
+{
+  realloc_set_internal(ats_malloc(buf_size), buf_size, -buf_size);
+}
+
+TS_INLINE void
+IOBufferBlock::realloc(int64_t i)
+{
+  if ((i == data->_size_index) || (i >= (int64_t)countof(ioBufAllocator))) {
+    return;
+  }
+
+  ink_release_assert(i > data->_size_index && i != BUFFER_SIZE_NOT_ALLOCATED);
+  void *b = ioBufAllocator[i].alloc_void();
+  realloc_set_internal(b, BUFFER_SIZE_FOR_INDEX(i), i);
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  class IOBufferReader --
+//         inline functions definitions
+//
+//////////////////////////////////////////////////////////////////
+TS_INLINE void
+IOBufferReader::skip_empty_blocks()
+{
+  while (block->next && block->next->read_avail() && start_offset >= block->size()) {
+    start_offset -= block->size();
+    block = block->next;
+  }
+}
+
+TS_INLINE bool
+IOBufferReader::low_water()
+{
+  return mbuf->low_water();
+}
+
+TS_INLINE bool
+IOBufferReader::high_water()
+{
+  return read_avail() >= mbuf->water_mark;
+}
+
+TS_INLINE bool
+IOBufferReader::current_low_water()
+{
+  return mbuf->current_low_water();
+}
+
+TS_INLINE IOBufferBlock *
+IOBufferReader::get_current_block()
+{
+  return block;
+}
+
+TS_INLINE char *
+IOBufferReader::start()
+{
+  if (block == 0)
+    return 0;
+  skip_empty_blocks();
+  return block->start() + start_offset;
+}
+
+TS_INLINE char *
+IOBufferReader::end()
+{
+  if (block == 0)
+    return 0;
+  skip_empty_blocks();
+  return block->end();
+}
+
+TS_INLINE int64_t
+IOBufferReader::block_read_avail()
+{
+  if (block == 0)
+    return 0;
+  skip_empty_blocks();
+  return (int64_t) (block->end() - (block->start() + start_offset));
+}
+
+TS_INLINE int
+IOBufferReader::block_count()
+{
+  int count = 0;
+  IOBufferBlock *b = block;
+
+  while (b) {
+    count++;
+    b = b->next;
+  }
+  return count;
+}
+
+TS_INLINE int64_t
+IOBufferReader::read_avail()
+{
+  int64_t t = 0;
+  IOBufferBlock *b = block;
+
+  while (b) {
+    t += b->read_avail();
+    b = b->next;
+  }
+  t -= start_offset;
+  if (size_limit != INT64_MAX && t > size_limit)
+    t = size_limit;
+  return t;
+}
+
+inline bool
+IOBufferReader::is_read_avail_more_than(int64_t size)
+{
+  int64_t t = -start_offset;
+  IOBufferBlock* b = block;
+  while (b) {
+    t += b->read_avail();
+    if (t > size) {
+      return true;
+    }
+    b = b->next;
+  }
+  return false;
+}
+
+TS_INLINE void
+IOBufferReader::consume(int64_t n)
+{
+  start_offset += n;
+  if (size_limit != INT64_MAX)
+    size_limit -= n;
+  ink_assert(size_limit >= 0);
+  if (block == 0)
+    return;
+  int64_t r = block->read_avail();
+  int64_t s = start_offset;
+  while (r <= s && block->next && block->next->read_avail()) {
+    s -= r;
+    start_offset = s;
+    block = block->next;
+    r = block->read_avail();
+  }
+  ink_assert(read_avail() >= 0);
+}
+
+TS_INLINE char &
+IOBufferReader::operator[] (int64_t i)
+{
+  static char
+    _error = '\0';
+
+  IOBufferBlock *
+    b = block;
+  i += start_offset;
+  while (b) {
+    int64_t bytes = b->read_avail();
+    if (bytes > i)
+      return b->start()[i];
+    i -= bytes;
+    b = b->next;
+  }
+
+  ink_assert(!"out of range");
+  if (unlikely(b))
+    return *b->start();
+
+  return _error;
+}
+
+TS_INLINE void
+IOBufferReader::clear()
+{
+  accessor = NULL;
+  block = NULL;
+  mbuf = NULL;
+  start_offset = 0;
+  size_limit = INT64_MAX;
+}
+
+TS_INLINE void
+IOBufferReader::reset()
+{
+  block = mbuf->_writer;
+  start_offset = 0;
+  size_limit = INT64_MAX;
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  class MIOBuffer --
+//      inline functions definitions
+//
+////////////////////////////////////////////////////////////////
+inkcoreapi extern ClassAllocator<MIOBuffer> ioAllocator;
+////////////////////////////////////////////////////////////////
+//
+//  MIOBuffer::MIOBuffer()
+//
+//  This constructor accepts a pre-allocated memory buffer,
+//  wraps if in a IOBufferData and IOBufferBlock structures
+//  and sets it as the current block.
+//  NOTE that in this case the memory buffer will not be freed
+//  by the MIOBuffer class. It is the user responsibility to
+//  free the memory buffer. The wrappers (MIOBufferBlock and
+//  MIOBufferData) will be freed by this class.
+//
+////////////////////////////////////////////////////////////////
+TS_INLINE
+MIOBuffer::MIOBuffer(void *b, int64_t bufsize, int64_t aWater_mark)
+{
+  set(b, bufsize);
+  water_mark = aWater_mark;
+  size_index = BUFFER_SIZE_NOT_ALLOCATED;
+#ifdef TRACK_BUFFER_USER
+  _location = NULL;
+#endif
+  return;
+}
+
+TS_INLINE
+MIOBuffer::MIOBuffer(int64_t default_size_index)
+{
+  clear();
+  size_index = default_size_index;
+#ifdef TRACK_BUFFER_USER
+  _location = NULL;
+#endif
+  return;
+}
+
+TS_INLINE
+MIOBuffer::MIOBuffer()
+{
+  clear();
+#ifdef TRACK_BUFFER_USER
+  _location = NULL;
+#endif
+  return;
+}
+
+TS_INLINE
+MIOBuffer::~
+MIOBuffer()
+{
+  _writer = NULL;
+  dealloc_all_readers();
+}
+
+TS_INLINE MIOBuffer * new_MIOBuffer_internal(
+#ifdef TRACK_BUFFER_USER
+                                               const char *location,
+#endif
+                                               int64_t size_index)
+{
+  MIOBuffer *b = THREAD_ALLOC(ioAllocator, this_thread());
+#ifdef TRACK_BUFFER_USER
+  b->_location = location;
+#endif
+  b->alloc(size_index);
+  return b;
+}
+
+TS_INLINE void
+free_MIOBuffer(MIOBuffer * mio)
+{
+  mio->_writer = NULL;
+  mio->dealloc_all_readers();
+  THREAD_FREE(mio, ioAllocator, this_thread());
+}
+
+TS_INLINE MIOBuffer * new_empty_MIOBuffer_internal(
+#ifdef TRACK_BUFFER_USER
+                                                     const char *location,
+#endif
+                                                     int64_t size_index)
+{
+  MIOBuffer *b = THREAD_ALLOC(ioAllocator, this_thread());
+  b->size_index = size_index;
+#ifdef TRACK_BUFFER_USER
+  b->_location = location;
+#endif
+  return b;
+}
+
+TS_INLINE void
+free_empty_MIOBuffer(MIOBuffer * mio)
+{
+  THREAD_FREE(mio, ioAllocator, this_thread());
+}
+
+TS_INLINE IOBufferReader *
+MIOBuffer::alloc_accessor(MIOBufferAccessor * anAccessor)
+{
+  int i;
+  for (i = 0; i < MAX_MIOBUFFER_READERS; i++)
+    if (!readers[i].allocated())
+      break;
+
+  // TODO refactor code to return NULL at some point
+  ink_release_assert(i < MAX_MIOBUFFER_READERS);
+
+  IOBufferReader *e = &readers[i];
+  e->mbuf = this;
+  e->reset();
+  e->accessor = anAccessor;
+
+  return e;
+}
+
+TS_INLINE IOBufferReader *
+MIOBuffer::alloc_reader()
+{
+  int i;
+  for (i = 0; i < MAX_MIOBUFFER_READERS; i++)
+    if (!readers[i].allocated())
+      break;
+
+  // TODO refactor code to return NULL at some point
+  ink_release_assert(i < MAX_MIOBUFFER_READERS);
+
+  IOBufferReader *e = &readers[i];
+  e->mbuf = this;
+  e->reset();
+  e->accessor = NULL;
+
+  return e;
+}
+
+TS_INLINE int64_t
+MIOBuffer::block_size()
+{
+  return index_to_buffer_size(size_index);
+}
+TS_INLINE IOBufferReader *
+MIOBuffer::clone_reader(IOBufferReader * r)
+{
+  int i;
+  for (i = 0; i < MAX_MIOBUFFER_READERS; i++)
+    if (!readers[i].allocated())
+      break;
+
+  // TODO refactor code to return NULL at some point
+  ink_release_assert(i < MAX_MIOBUFFER_READERS);
+
+  IOBufferReader *e = &readers[i];
+  e->mbuf = this;
+  e->accessor = NULL;
+  e->block = r->block;
+  e->start_offset = r->start_offset;
+  e->size_limit = r->size_limit;
+  ink_assert(e->size_limit >= 0);
+
+  return e;
+}
+
+TS_INLINE int64_t
+MIOBuffer::block_write_avail()
+{
+  IOBufferBlock *b = first_write_block();
+  return b ? b->write_avail() : 0;
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  MIOBuffer::append_block()
+//
+//  Appends a block to writer->next and make it the current
+//  block.
+//  Note that the block is not appended to the end of the list.
+//  That means that if writer->next was not null before this
+//  call then the block that writer->next was pointing to will
+//  have its reference count decremented and writer->next
+//  will have a new value which is the new block.
+//  In any case the new appended block becomes the current
+//  block.
+//
+////////////////////////////////////////////////////////////////
+TS_INLINE void
+MIOBuffer::append_block_internal(IOBufferBlock * b)
+{
+  // It would be nice to remove an empty buffer at the beginning,
+  // but this breaks HTTP.
+  // if (!_writer || !_writer->read_avail())
+  if (!_writer) {
+    _writer = b;
+    init_readers();
+  } else {
+    ink_assert(!_writer->next || !_writer->next->read_avail());
+    _writer->next = b;
+    while (b->read_avail()) {
+      _writer = b;
+      b = b->next;
+      if (!b)
+        break;
+    }
+  }
+  while (_writer->next && !_writer->write_avail() && _writer->next->read_avail())
+    _writer = _writer->next;
+}
+
+TS_INLINE void
+MIOBuffer::append_block(IOBufferBlock * b)
+{
+  ink_assert(b->read_avail());
+  append_block_internal(b);
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  MIOBuffer::append_block()
+//
+//  Allocate a block, appends it to current->next
+//  and make the new block the current block (writer).
+//
+////////////////////////////////////////////////////////////////
+TS_INLINE void
+MIOBuffer::append_block(int64_t asize_index)
+{
+  ink_assert(BUFFER_SIZE_ALLOCATED(asize_index));
+#ifdef TRACK_BUFFER_USER
+  IOBufferBlock *b = new_IOBufferBlock_internal(_location);
+#else
+  IOBufferBlock *b = new_IOBufferBlock_internal();
+#endif
+  b->alloc(asize_index);
+  append_block_internal(b);
+  return;
+}
+
+TS_INLINE void
+MIOBuffer::add_block()
+{
+  append_block(size_index);
+}
+
+TS_INLINE void
+MIOBuffer::check_add_block()
+{
+  if (!high_water() && current_low_water())
+    add_block();
+}
+
+TS_INLINE IOBufferBlock *
+MIOBuffer::get_current_block()
+{
+  return first_write_block();
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  MIOBuffer::current_write_avail()
+//
+//  returns the total space available in all blocks.
+//  This function is different than write_avail() because
+//  it will not append a new block if there is no space
+//  or below the watermark space available.
+//
+//////////////////////////////////////////////////////////////////
+TS_INLINE int64_t
+MIOBuffer::current_write_avail()
+{
+  int64_t t = 0;
+  IOBufferBlock *b = _writer;
+  while (b) {
+    t += b->write_avail();
+    b = b->next;
+  }
+  return t;
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  MIOBuffer::write_avail()
+//
+//  returns the number of bytes available in the current block.
+//  If there is no current block or not enough free space in
+//  the current block then a new block is appended.
+//
+//////////////////////////////////////////////////////////////////
+TS_INLINE int64_t
+MIOBuffer::write_avail()
+{
+  check_add_block();
+  return current_write_avail();
+}
+
+TS_INLINE void
+MIOBuffer::fill(int64_t len)
+{
+  int64_t f = _writer->write_avail();
+  while (f < len) {
+    _writer->fill(f);
+    len -= f;
+    if (len > 0)
+      _writer = _writer->next;
+    f = _writer->write_avail();
+  }
+  _writer->fill(len);
+}
+
+TS_INLINE int
+MIOBuffer::max_block_count()
+{
+  int maxb = 0;
+  for (int i = 0; i < MAX_MIOBUFFER_READERS; i++) {
+    if (readers[i].allocated()) {
+      int c = readers[i].block_count();
+      if (c > maxb) {
+        maxb = c;
+      }
+    }
+  }
+  return maxb;
+}
+
+TS_INLINE int64_t
+MIOBuffer::max_read_avail()
+{
+  int64_t s = 0;
+  int found = 0;
+  for (int i = 0; i < MAX_MIOBUFFER_READERS; i++) {
+    if (readers[i].allocated()) {
+      int64_t ss = readers[i].read_avail();
+      if (ss > s) {
+        s = ss;
+      }
+      found = 1;
+    }
+  }
+  if (!found && _writer)
+    return _writer->read_avail();
+  return s;
+}
+
+TS_INLINE void
+MIOBuffer::set(void *b, int64_t len)
+{
+#ifdef TRACK_BUFFER_USER
+  _writer = new_IOBufferBlock_internal(_location);
+#else
+  _writer = new_IOBufferBlock_internal();
+#endif
+  _writer->set_internal(b, len, BUFFER_SIZE_INDEX_FOR_CONSTANT_SIZE(len));
+  init_readers();
+}
+
+TS_INLINE void
+MIOBuffer::set_xmalloced(void *b, int64_t len)
+{
+#ifdef TRACK_BUFFER_USER
+  _writer = new_IOBufferBlock_internal(_location);
+#else
+  _writer = new_IOBufferBlock_internal();
+#endif
+  _writer->set_internal(b, len, BUFFER_SIZE_INDEX_FOR_XMALLOC_SIZE(len));
+  init_readers();
+}
+
+TS_INLINE void
+MIOBuffer::append_xmalloced(void *b, int64_t len)
+{
+#ifdef TRACK_BUFFER_USER
+  IOBufferBlock *x = new_IOBufferBlock_internal(_location);
+#else
+  IOBufferBlock *x = new_IOBufferBlock_internal();
+#endif
+  x->set_internal(b, len, BUFFER_SIZE_INDEX_FOR_XMALLOC_SIZE(len));
+  append_block_internal(x);
+}
+
+TS_INLINE void
+MIOBuffer::append_fast_allocated(void *b, int64_t len, int64_t fast_size_index)
+{
+#ifdef TRACK_BUFFER_USER
+  IOBufferBlock *x = new_IOBufferBlock_internal(_location);
+#else
+  IOBufferBlock *x = new_IOBufferBlock_internal();
+#endif
+  x->set_internal(b, len, fast_size_index);
+  append_block_internal(x);
+}
+
+TS_INLINE void
+MIOBuffer::alloc(int64_t i)
+{
+#ifdef TRACK_BUFFER_USER
+  _writer = new_IOBufferBlock_internal(_location);
+#else
+  _writer = new_IOBufferBlock_internal();
+#endif
+  _writer->alloc(i);
+  size_index = i;
+  init_readers();
+}
+
+TS_INLINE void
+MIOBuffer::alloc_xmalloc(int64_t buf_size)
+{
+  char *b = (char *)ats_malloc(buf_size);
+  set_xmalloced(b, buf_size);
+}
+
+TS_INLINE void
+MIOBuffer::dealloc_reader(IOBufferReader * e)
+{
+  if (e->accessor) {
+    ink_assert(e->accessor->writer() == this);
+    ink_assert(e->accessor->reader() == e);
+    e->accessor->clear();
+  }
+  e->clear();
+}
+
+TS_INLINE IOBufferReader *
+IOBufferReader::clone()
+{
+  return mbuf->clone_reader(this);
+}
+
+TS_INLINE void
+IOBufferReader::dealloc()
+{
+  mbuf->dealloc_reader(this);
+}
+
+TS_INLINE void
+MIOBuffer::dealloc_all_readers()
+{
+  for (int i = 0; i < MAX_MIOBUFFER_READERS; i++)
+    if (readers[i].allocated())
+      dealloc_reader(&readers[i]);
+}
+
+TS_INLINE void
+MIOBuffer::set_size_index(int64_t size)
+{
+  size_index = iobuffer_size_to_index(size);
+}
+
+TS_INLINE void
+MIOBufferAccessor::reader_for(MIOBuffer * abuf)
+{
+  mbuf = abuf;
+  if (abuf)
+    entry = mbuf->alloc_accessor(this);
+  else
+    entry = NULL;
+}
+
+TS_INLINE void
+MIOBufferAccessor::reader_for(IOBufferReader * areader)
+{
+  if (entry == areader)
+    return;
+  mbuf = areader->mbuf;
+  entry = areader;
+  ink_assert(mbuf);
+}
+
+TS_INLINE void
+MIOBufferAccessor::writer_for(MIOBuffer * abuf)
+{
+  mbuf = abuf;
+  entry = NULL;
+}
+
+TS_INLINE
+MIOBufferAccessor::~
+MIOBufferAccessor()
+{
+}
+
+#endif
diff --git a/iocore/eventsystem/P_ProtectedQueue.h b/iocore/eventsystem/P_ProtectedQueue.h
new file mode 100644
index 00000000..aa6720bd
--- /dev/null
+++ b/iocore/eventsystem/P_ProtectedQueue.h
@@ -0,0 +1,96 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Protected Queue
+
+
+ ****************************************************************************/
+#ifndef _P_ProtectedQueue_h_
+#define _P_ProtectedQueue_h_
+
+#include "I_EventSystem.h"
+
+
+TS_INLINE
+ProtectedQueue::ProtectedQueue()
+{
+  Event e;
+  ink_mutex_init(&lock, "ProtectedQueue");
+  ink_atomiclist_init(&al, "ProtectedQueue", (char *) &e.link.next - (char *) &e);
+  ink_cond_init(&might_have_data);
+}
+
+TS_INLINE void
+ProtectedQueue::signal()
+{
+  // Need to get the lock before you can signal the thread
+  ink_mutex_acquire(&lock);
+  ink_cond_signal(&might_have_data);
+  ink_mutex_release(&lock);
+}
+
+TS_INLINE int
+ProtectedQueue::try_signal()
+{
+  // Need to get the lock before you can signal the thread
+  if (ink_mutex_try_acquire(&lock)) {
+    ink_cond_signal(&might_have_data);
+    ink_mutex_release(&lock);
+    return 1;
+  } else {
+    return 0;
+  }
+}
+
+// Called from the same thread (don't need to signal)
+TS_INLINE void
+ProtectedQueue::enqueue_local(Event * e)
+{
+  ink_assert(!e->in_the_prot_queue && !e->in_the_priority_queue);
+  e->in_the_prot_queue = 1;
+  localQueue.enqueue(e);
+}
+
+TS_INLINE void
+ProtectedQueue::remove(Event * e)
+{
+  ink_assert(e->in_the_prot_queue);
+  if (!ink_atomiclist_remove(&al, e))
+    localQueue.remove(e);
+  e->in_the_prot_queue = 0;
+}
+
+TS_INLINE Event *
+ProtectedQueue::dequeue_local()
+{
+  Event *e = localQueue.dequeue();
+  if (e) {
+    ink_assert(e->in_the_prot_queue);
+    e->in_the_prot_queue = 0;
+  }
+  return e;
+}
+
+#endif
diff --git a/iocore/eventsystem/P_Thread.h b/iocore/eventsystem/P_Thread.h
new file mode 100644
index 00000000..780fcfe6
--- /dev/null
+++ b/iocore/eventsystem/P_Thread.h
@@ -0,0 +1,69 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Basic Threads
+
+
+
+****************************************************************************/
+#ifndef _P_Thread_h_
+#define _P_Thread_h_
+
+#include "I_Thread.h"
+
+  ///////////////////////////////////////////////
+  // Common Interface impl                     //
+  ///////////////////////////////////////////////
+TS_INLINE
+Thread::~
+Thread()
+{
+}
+
+TS_INLINE void
+Thread::set_specific()
+{
+  ink_thread_setspecific(Thread::thread_data_key, this);
+}
+
+TS_INLINE Thread *
+this_thread()
+{
+  return (Thread *) ink_thread_getspecific(Thread::thread_data_key);
+}
+
+TS_INLINE ink_hrtime
+ink_get_hrtime()
+{
+  return Thread::cur_time;
+}
+
+TS_INLINE ink_hrtime
+ink_get_based_hrtime()
+{
+  return Thread::cur_time;
+}
+
+#endif //_P_Thread_h_
diff --git a/iocore/eventsystem/P_UnixEThread.h b/iocore/eventsystem/P_UnixEThread.h
new file mode 100644
index 00000000..462de693
--- /dev/null
+++ b/iocore/eventsystem/P_UnixEThread.h
@@ -0,0 +1,173 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_UnixEThread.h
+
+
+
+*****************************************************************************/
+#ifndef _P_UnixEThread_h_
+#define _P_UnixEThread_h_
+
+#include "I_EThread.h"
+#include "I_EventProcessor.h"
+
+const int DELAY_FOR_RETRY = HRTIME_MSECONDS(10);
+
+TS_INLINE Event *
+EThread::schedule_spawn(Continuation * cont)
+{
+  Event *e = EVENT_ALLOC(eventAllocator, this);
+  return schedule(e->init(cont, 0, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_imm(Continuation * cont, int callback_event, void *cookie)
+{
+  Event *e =::eventAllocator.alloc();
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, 0, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_imm_signal(Continuation * cont, int callback_event, void *cookie)
+{
+  Event *e =::eventAllocator.alloc();
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, 0, 0), true);
+}
+
+TS_INLINE Event *
+EThread::schedule_at(Continuation * cont, ink_hrtime t, int callback_event, void *cookie)
+{
+  Event *e =::eventAllocator.alloc();
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, t, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_in(Continuation * cont, ink_hrtime t, int callback_event, void *cookie)
+{
+  Event *e =::eventAllocator.alloc();
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, ink_get_based_hrtime() + t, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_every(Continuation * cont, ink_hrtime t, int callback_event, void *cookie)
+{
+  Event *e =::eventAllocator.alloc();
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, ink_get_based_hrtime() + t, t));
+}
+
+TS_INLINE Event *
+EThread::schedule(Event * e, bool fast_signal)
+{
+  e->ethread = this;
+  ink_assert(tt == REGULAR);
+  if (e->continuation->mutex)
+    e->mutex = e->continuation->mutex;
+  else
+    e->mutex = e->continuation->mutex = e->ethread->mutex;
+  ink_assert(e->mutex.m_ptr);
+  EventQueueExternal.enqueue(e, fast_signal);
+  return e;
+}
+
+TS_INLINE Event *
+EThread::schedule_imm_local(Continuation * cont, int callback_event, void *cookie)
+{
+  Event *e = EVENT_ALLOC(eventAllocator, this);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule_local(e->init(cont, 0, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_at_local(Continuation * cont, ink_hrtime t, int callback_event, void *cookie)
+{
+  Event *e = EVENT_ALLOC(eventAllocator, this);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule_local(e->init(cont, t, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_in_local(Continuation * cont, ink_hrtime t, int callback_event, void *cookie)
+{
+  Event *e = EVENT_ALLOC(eventAllocator, this);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule_local(e->init(cont, ink_get_based_hrtime() + t, 0));
+}
+
+TS_INLINE Event *
+EThread::schedule_every_local(Continuation * cont, ink_hrtime t, int callback_event, void *cookie)
+{
+  Event *e = EVENT_ALLOC(eventAllocator, this);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule_local(e->init(cont, ink_get_based_hrtime() + t, t));
+}
+
+TS_INLINE Event *
+EThread::schedule_local(Event * e)
+{
+  if (tt != REGULAR) {
+    ink_assert(tt == DEDICATED);
+    return eventProcessor.schedule(e, ET_CALL);
+  }
+  if (!e->mutex.m_ptr) {
+    e->ethread = this;
+    e->mutex = e->continuation->mutex;
+  } else {
+    ink_assert(e->ethread == this);
+  }
+  e->globally_allocated = false;
+  EventQueueExternal.enqueue_local(e);
+  return e;
+}
+
+TS_INLINE EThread *
+this_ethread()
+{
+  return (EThread *) this_thread();
+}
+
+TS_INLINE void
+EThread::free_event(Event * e)
+{
+  ink_assert(!e->in_the_priority_queue && !e->in_the_prot_queue);
+  e->mutex = NULL;
+  EVENT_FREE(e, eventAllocator, this);
+}
+
+#endif /*_EThread_h_*/
diff --git a/iocore/eventsystem/P_UnixEvent.h b/iocore/eventsystem/P_UnixEvent.h
new file mode 100644
index 00000000..54469a9b
--- /dev/null
+++ b/iocore/eventsystem/P_UnixEvent.h
@@ -0,0 +1,58 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_UnixEvent_h_
+#define _P_UnixEvent_h_
+
+TS_INLINE Event *
+Event::init(Continuation * c, ink_hrtime atimeout_at, ink_hrtime aperiod)
+{
+  continuation = c;
+  timeout_at = atimeout_at;
+  period = aperiod;
+  immediate = !period && !atimeout_at;
+  cancelled = false;
+  return this;
+}
+
+TS_INLINE void
+Event::free()
+{
+  mutex = NULL;
+  eventAllocator.free(this);
+}
+
+TS_INLINE
+Event::Event():
+  ethread(0),
+  in_the_prot_queue(false),
+  in_the_priority_queue(false),
+  immediate(false),
+  globally_allocated(true),
+  in_heap(false),
+  timeout_at(0),
+  period(0)
+{
+}
+
+#endif /*_UnixEvent_h_*/
diff --git a/iocore/eventsystem/P_UnixEventProcessor.h b/iocore/eventsystem/P_UnixEventProcessor.h
new file mode 100644
index 00000000..d9a1e731
--- /dev/null
+++ b/iocore/eventsystem/P_UnixEventProcessor.h
@@ -0,0 +1,155 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_UnixEventProcessor_h_
+#define _P_UnixEventProcessor_h_
+#include "I_EventProcessor.h"
+
+const int LOAD_BALANCE_INTERVAL = 1;
+
+
+TS_INLINE
+EventProcessor::EventProcessor():
+n_ethreads(0),
+n_thread_groups(0),
+n_dthreads(0),
+thread_data_used(0)
+{
+  memset(all_ethreads, 0, sizeof(all_ethreads));
+  memset(all_dthreads, 0, sizeof(all_dthreads));
+  memset(n_threads_for_type, 0, sizeof(n_threads_for_type));
+  memset(next_thread_for_type, 0, sizeof(next_thread_for_type));
+}
+
+TS_INLINE off_t
+EventProcessor::allocate(int size)
+{
+  static off_t start = INK_ALIGN(offsetof(EThread, thread_private), 16);
+  static off_t loss = start - offsetof(EThread, thread_private);
+  size = INK_ALIGN(size, 16);       // 16 byte alignment
+
+  int old;
+  do {
+    old = thread_data_used;
+    if (old + loss + size > PER_THREAD_DATA)
+      return -1;
+  } while (!ink_atomic_cas(&thread_data_used, old, old + size));
+
+  return (off_t) (old + start);
+}
+
+TS_INLINE EThread *
+EventProcessor::assign_thread(EventType etype)
+{
+  int next;
+
+  ink_assert(etype < MAX_EVENT_TYPES);
+  if (n_threads_for_type[etype] > 1)
+    next = next_thread_for_type[etype]++ % n_threads_for_type[etype];
+  else
+    next = 0;
+  return (eventthread[etype][next]);
+}
+
+TS_INLINE Event *
+EventProcessor::schedule(Event * e, EventType etype, bool fast_signal)
+{
+  ink_assert(etype < MAX_EVENT_TYPES);
+  e->ethread = assign_thread(etype);
+  if (e->continuation->mutex)
+    e->mutex = e->continuation->mutex;
+  else
+    e->mutex = e->continuation->mutex = e->ethread->mutex;
+  e->ethread->EventQueueExternal.enqueue(e, fast_signal);
+  return e;
+}
+
+
+TS_INLINE Event *
+EventProcessor::schedule_imm_signal(Continuation * cont, EventType et, int callback_event, void *cookie)
+{
+  Event *e = eventAllocator.alloc();
+
+  ink_assert(et < MAX_EVENT_TYPES);
+#ifdef ENABLE_TIME_TRACE
+  e->start_time = ink_get_hrtime();
+#endif
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, 0, 0), et, true);
+}
+
+TS_INLINE Event *
+EventProcessor::schedule_imm(Continuation * cont, EventType et, int callback_event, void *cookie)
+{
+  Event *e = eventAllocator.alloc();
+
+  ink_assert(et < MAX_EVENT_TYPES);
+#ifdef ENABLE_TIME_TRACE
+  e->start_time = ink_get_hrtime();
+#endif
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, 0, 0), et);
+}
+
+TS_INLINE Event *
+EventProcessor::schedule_at(Continuation * cont, ink_hrtime t, EventType et, int callback_event, void *cookie)
+{
+  Event *e = eventAllocator.alloc();
+
+  ink_assert(t > 0);
+  ink_assert(et < MAX_EVENT_TYPES);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, t, 0), et);
+}
+
+TS_INLINE Event *
+EventProcessor::schedule_in(Continuation * cont, ink_hrtime t, EventType et, int callback_event, void *cookie)
+{
+  Event *e = eventAllocator.alloc();
+
+  ink_assert(et < MAX_EVENT_TYPES);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  return schedule(e->init(cont, ink_get_based_hrtime() + t, 0), et);
+}
+
+TS_INLINE Event *
+EventProcessor::schedule_every(Continuation * cont, ink_hrtime t, EventType et, int callback_event, void *cookie)
+{
+  Event *e = eventAllocator.alloc();
+
+  ink_assert(t != 0);
+  ink_assert(et < MAX_EVENT_TYPES);
+  e->callback_event = callback_event;
+  e->cookie = cookie;
+  if (t < 0)
+    return schedule(e->init(cont, t, t), et);
+  else
+    return schedule(e->init(cont, ink_get_based_hrtime() + t, t), et);
+}
+
+
+#endif
diff --git a/iocore/eventsystem/P_UnixSocketManager.h b/iocore/eventsystem/P_UnixSocketManager.h
new file mode 100644
index 00000000..e1976ebb
--- /dev/null
+++ b/iocore/eventsystem/P_UnixSocketManager.h
@@ -0,0 +1,550 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  UnixSocketManager.h
+
+  Handle the allocation of the socket descriptor (fd) resource.
+
+
+****************************************************************************/
+#ifndef _P_UnixSocketManager_h_
+#define _P_UnixSocketManager_h_
+
+#include "libts.h"
+#include "I_SocketManager.h"
+
+
+//
+// These limits are currently disabled
+//
+// 1024 - stdin, stderr, stdout
+#define EPOLL_MAX_DESCRIPTOR_SIZE                32768
+
+TS_INLINE bool
+transient_error()
+{
+  bool transient = (errno == EINTR);
+#ifdef ENOMEM
+  transient = transient || (errno == ENOMEM);
+#endif
+#ifdef ENOBUFS
+  transient = transient || (errno == ENOBUFS);
+#endif
+  return transient;
+}
+
+
+//
+// Timing done in the connectionManager
+//
+TS_INLINE int
+SocketManager::accept(int s, struct sockaddr *addr, socklen_t *addrlen)
+{
+  int r;
+  do {
+    r =::accept(s, addr, addrlen);
+    if (likely(r >= 0))
+      break;
+    r = -errno;
+  } while (transient_error());
+
+  return r;
+}
+
+TS_INLINE int
+SocketManager::open(const char *path, int oflag, mode_t mode)
+{
+  int s;
+  do {
+    s =::open(path, oflag, mode);
+    if (likely(s >= 0))
+      break;
+    s = -errno;
+  } while (transient_error());
+  return s;
+}
+
+TS_INLINE int64_t
+SocketManager::read(int fd, void *buf, int size, void * /* pOLP ATS_UNUSED */)
+{
+  int64_t r;
+  do {
+    r =::read(fd, buf, size);
+    if (likely(r >= 0))
+      break;
+    r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::pread(int fd, void *buf, int size, off_t offset, char * /* tag ATS_UNUSED */)
+{
+  int64_t r;
+  do {
+    r =::pread(fd, buf, size, offset);
+    if (r < 0)
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::readv(int fd, struct iovec *vector, size_t count)
+{
+  int64_t r;
+  do {
+    // coverity[tainted_data_argument]
+    if (likely((r =::readv(fd, vector, count)) >= 0))
+      break;
+    r = -errno;
+  } while (transient_error());
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::vector_io(int fd, struct iovec *vector, size_t count, int read_request, void * /* pOLP ATS_UNUSED */)
+{
+  const int max_iovecs_per_request = 16;
+  int n;
+  int64_t r = 0;
+  int n_vec;
+  int64_t bytes_xfered = 0;
+  int current_count;
+  int64_t current_request_bytes;
+
+  for (n_vec = 0; n_vec < (int) count; n_vec += max_iovecs_per_request) {
+    current_count = min(max_iovecs_per_request, ((int) (count - n_vec)));
+    do {
+      // coverity[tainted_data_argument]
+      r = read_request ? ::readv(fd, &vector[n_vec], current_count) : ::writev(fd, &vector[n_vec], current_count);
+      if (likely(r >= 0))
+        break;
+      r = -errno;
+    } while (transient_error());
+
+    if (r <= 0) {
+      return (bytes_xfered && (r == -EAGAIN)) ? bytes_xfered : r;
+    }
+    bytes_xfered += r;
+
+    if ((n_vec + max_iovecs_per_request) >= (int) count)
+      break;
+
+    // Compute bytes in current vector
+    current_request_bytes = 0;
+    for (n = n_vec; n < (n_vec + current_count); ++n)
+      current_request_bytes += vector[n].iov_len;
+
+    // Exit if we were unable to read all data in the current vector
+    if (r != current_request_bytes)
+      break;
+  }
+  return bytes_xfered;
+}
+
+TS_INLINE int64_t
+SocketManager::read_vector(int fd, struct iovec *vector, size_t count, void *pOLP)
+{
+  return vector_io(fd, vector, count, 1, pOLP);
+}
+
+TS_INLINE int
+SocketManager::recv(int fd, void *buf, int size, int flags)
+{
+  int r;
+  do {
+    if (unlikely((r =::recv(fd, (char *) buf, size, flags)) < 0)) {
+      r = -errno;
+    }
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::recvfrom(int fd, void *buf, int size, int flags, struct sockaddr *addr, socklen_t *addrlen)
+{
+  int r;
+  do {
+    r =::recvfrom(fd, (char *) buf, size, flags, addr, addrlen);
+    if (unlikely(r < 0))
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::write(int fd, void *buf, int size, void * /* pOLP ATS_UNUSED */)
+{
+  int64_t r;
+  do {
+    if (likely((r =::write(fd, buf, size)) >= 0))
+      break;
+    r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::pwrite(int fd, void *buf, int size, off_t offset, char * /* tag ATS_UNUSED */)
+{
+  int64_t r;
+  do {
+    if (unlikely((r =::pwrite(fd, buf, size, offset)) < 0))
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::writev(int fd, struct iovec *vector, size_t count)
+{
+  int64_t r;
+  do {
+    if (likely((r =::writev(fd, vector, count)) >= 0))
+      break;
+    r = -errno;
+  } while (transient_error());
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::write_vector(int fd, struct iovec *vector, size_t count, void *pOLP)
+{
+  return vector_io(fd, vector, count, 0, pOLP);
+}
+
+
+TS_INLINE int
+SocketManager::send(int fd, void *buf, int size, int flags)
+{
+  int r;
+  do {
+    if (unlikely((r =::send(fd, (char *) buf, size, flags)) < 0))
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::sendto(int fd, void *buf, int len, int flags, struct sockaddr const* to, int tolen)
+{
+  int r;
+  do {
+    if (unlikely((r =::sendto(fd, (char *) buf, len, flags, to, tolen)) < 0))
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::sendmsg(int fd, struct msghdr *m, int flags, void * /* pOLP ATS_UNUSED */)
+{
+  int r;
+  do {
+    if (unlikely((r =::sendmsg(fd, m, flags)) < 0))
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int64_t
+SocketManager::lseek(int fd, off_t offset, int whence)
+{
+  int64_t r;
+  do {
+    if ((r =::lseek(fd, offset, whence)) < 0)
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::fstat(int fd, struct stat *buf)
+{
+  int r;
+  do {
+    if ((r =::fstat(fd, buf)) >= 0)
+      break;
+    r = -errno;
+  } while (transient_error());
+  return r;
+}
+
+TS_INLINE int
+SocketManager::unlink(char *buf)
+{
+  int r;
+  do {
+    if ((r =::unlink(buf)) < 0)
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::fsync(int fildes)
+{
+  int r;
+  do {
+    if ((r =::fsync(fildes)) < 0)
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::ftruncate(int fildes, off_t length)
+{
+  int r;
+  do {
+    if ((r =::ftruncate(fildes, length)) < 0)
+      r = -errno;
+  } while (r == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::poll(struct pollfd *fds, unsigned long nfds, int timeout)
+{
+  int r;
+  do {
+    if ((r =::poll(fds, nfds, timeout)) >= 0)
+      break;
+    r = -errno;
+  } while (transient_error());
+  return r;
+}
+
+#if TS_USE_EPOLL
+TS_INLINE int
+SocketManager::epoll_create(int size)
+{
+  int r;
+  if (size <= 0)
+    size = EPOLL_MAX_DESCRIPTOR_SIZE;
+  do {
+    if (likely((r =::epoll_create(size)) >= 0))
+      break;
+    r = -errno;
+  } while (errno == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::epoll_close(int epfd)
+{
+  int r = 0;
+  if (likely(epfd >= 0)) {
+    do {
+      if (likely((r =::close(epfd)) == 0))
+        break;
+      r = -errno;
+    } while (errno == -EINTR);
+  }
+  return r;
+}
+
+TS_INLINE int
+SocketManager::epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
+{
+  int r;
+  do {
+    if (likely((r =::epoll_ctl(epfd, op, fd, event)) == 0))
+      break;
+    r = -errno;
+  } while (errno == -EINTR);
+  return r;
+}
+
+TS_INLINE int
+SocketManager::epoll_wait(int epfd, struct epoll_event *events, int maxevents, int timeout)
+{
+  int r;
+  do {
+    if ((r =::epoll_wait(epfd, events, maxevents, timeout)) >= 0)
+      break;
+    r = -errno;
+  } while (errno == -EINTR);
+  return r;
+}
+
+#endif /* TS_USE_EPOLL */
+
+#if TS_USE_KQUEUE
+TS_INLINE int
+SocketManager::kqueue()
+{
+  return ::kqueue();
+}
+
+TS_INLINE int
+SocketManager::kevent(int kq, const struct kevent *changelist, int nchanges,
+                      struct kevent *eventlist, int nevents,
+                      const struct timespec *timeout)
+{
+  int r;
+  do {
+    r =::kevent(kq, changelist, nchanges,
+                eventlist, nevents, timeout);
+    if (likely(r >= 0)) {
+        break;
+    }
+    r = -errno;
+  } while (errno == -EINTR);
+  return r;
+}
+#endif /* TS_USE_KQUEUE */
+
+#if TS_USE_PORT
+TS_INLINE int
+SocketManager::port_create()
+{
+  return ::port_create();
+}
+
+TS_INLINE int
+SocketManager::port_associate(int port, int source, uintptr_t obj,
+                              int events, void *user)
+{
+  int r;
+  r =::port_associate(port, source, obj, events, user);
+  if(r < 0)
+    r = -errno;
+  return r;
+}
+
+TS_INLINE int
+SocketManager::port_dissociate(int port, int source, uintptr_t obj)
+{
+  int r;
+  r =::port_dissociate(port, source, obj);
+  if(r < 0)
+    r = -errno;
+  return r;
+}
+
+TS_INLINE int
+SocketManager::port_getn(int port, port_event_t *list, uint_t max,
+                         uint_t *nget, timespec_t *timeout)
+{
+  int r;
+  do {
+    if ((r =::port_getn(port, list, max, nget, timeout)) >= 0)
+      break;
+    r = -errno;
+  } while (errno == -EINTR); //TODO: possible EAGAIN(undocumented)
+  return r;
+}
+#endif /* TS_USE_PORT */
+
+
+TS_INLINE int
+SocketManager::get_sndbuf_size(int s)
+{
+  int bsz = 0;
+  int bszsz, r;
+
+  bszsz = sizeof(bsz);
+  r = safe_getsockopt(s, SOL_SOCKET, SO_SNDBUF, (char *) &bsz, &bszsz);
+  return (r == 0 ? bsz : r);
+}
+
+TS_INLINE int
+SocketManager::get_rcvbuf_size(int s)
+{
+  int bsz = 0;
+  int bszsz, r;
+
+  bszsz = sizeof(bsz);
+  r = safe_getsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *) &bsz, &bszsz);
+  return (r == 0 ? bsz : r);
+}
+
+TS_INLINE int
+SocketManager::set_sndbuf_size(int s, int bsz)
+{
+  return safe_setsockopt(s, SOL_SOCKET, SO_SNDBUF, (char *) &bsz, sizeof(bsz));
+}
+
+TS_INLINE int
+SocketManager::set_rcvbuf_size(int s, int bsz)
+{
+  return safe_setsockopt(s, SOL_SOCKET, SO_RCVBUF, (char *) &bsz, sizeof(bsz));
+}
+
+TS_INLINE int
+SocketManager::getsockname(int s, struct sockaddr *sa, socklen_t *sz)
+{
+  return::getsockname(s, sa, sz);
+}
+
+TS_INLINE int
+SocketManager::socket(int domain, int type, int protocol, bool /* bNonBlocking ATS_UNUSED */)
+{
+  return::socket(domain, type, protocol);
+}
+
+TS_INLINE int
+SocketManager::mc_socket(int domain, int type, int protocol, bool bNonBlocking)
+{
+  return SocketManager::socket(domain, type, protocol, bNonBlocking);
+}
+
+TS_INLINE int
+SocketManager::shutdown(int s, int how)
+{
+  int res;
+  do {
+    if (unlikely((res =::shutdown(s, how)) < 0))
+      res = -errno;
+  } while (res == -EINTR);
+  return res;
+}
+
+TS_INLINE int
+SocketManager::lockf(int s, int f, off_t size)
+{
+  int res;
+  do {
+    if ((res =::lockf(s, f, size)) < 0)
+      res = -errno;
+  } while (res == -EINTR);
+  return res;
+}
+
+TS_INLINE int
+SocketManager::dup(int s)
+{
+  int res;
+  do {
+    if ((res =::dup(s)) >= 0)
+      break;
+    res = -errno;
+  } while (res == -EINTR);
+  return res;
+}
+
+#endif /*P_UnixSocketManager_h_ */
diff --git a/iocore/eventsystem/P_VConnection.h b/iocore/eventsystem/P_VConnection.h
new file mode 100644
index 00000000..89945c17
--- /dev/null
+++ b/iocore/eventsystem/P_VConnection.h
@@ -0,0 +1,138 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#if !defined (P_VConnection_h)
+#define P_VConnection_h
+#include "I_EventSystem.h"
+
+TS_INLINE const char *
+get_vc_event_name(int event)
+{
+  switch (event) {
+  default:
+    return "unknown event";
+  case VC_EVENT_NONE:
+    return "VC_EVENT_NONE";
+  case VC_EVENT_IMMEDIATE:
+    return "VC_EVENT_IMMEDIATE";
+  case VC_EVENT_READ_READY:
+    return "VC_EVENT_READ_READY";
+  case VC_EVENT_WRITE_READY:
+    return "VC_EVENT_WRITE_READY";
+  case VC_EVENT_READ_COMPLETE:
+    return "VC_EVENT_READ_COMPLETE";
+  case VC_EVENT_WRITE_COMPLETE:
+    return "VC_EVENT_WRITE_COMPLETE";
+  case VC_EVENT_EOS:
+    return "VC_EVENT_EOS";
+  case VC_EVENT_ERROR:
+    return "VC_EVENT_ERROR";
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    return "VC_EVENT_INACTIVITY_TIMEOUT";
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    return "VC_EVENT_ACTIVE_TIMEOUT";
+  }
+}
+
+
+TS_INLINE
+VConnection::VConnection(ProxyMutex * aMutex)
+  :
+Continuation(aMutex),
+lerrno(0)
+{
+  SET_HANDLER(0);
+}
+
+TS_INLINE
+VConnection::~
+VConnection()
+{
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      DEPRECATED DEPRECATED DEPRECATED
+//
+//      inline VIO * VConnection::do_io()
+//
+//      This method enqueues a VIO operation onto the VIO queue, and
+//      activates the I/O operation if and operation of that type isn't
+//      already underway.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+TS_INLINE VIO *
+vc_do_io_write(VConnection * vc, Continuation * cont, int64_t nbytes, MIOBuffer * buf, int64_t offset)
+{
+  IOBufferReader *reader = buf->alloc_reader();
+
+  if (offset > 0)
+    reader->consume(offset);
+
+  return vc->do_io_write(cont, nbytes, reader, true);
+}
+
+TS_INLINE VIO *
+VConnection::do_io(int op, Continuation * c, int64_t nbytes, MIOBuffer * cb, int data)
+{
+  switch (op) {
+  case VIO::READ:
+    return do_io_read(c, nbytes, cb);
+  case VIO::WRITE:
+    return vc_do_io_write(this, c, nbytes, cb, data);
+  case VIO::CLOSE:
+    do_io_close();
+    return NULL;
+  case VIO::ABORT:
+    do_io_close(data);
+    return NULL;
+  case VIO::SHUTDOWN_READ:
+    do_io_shutdown(IO_SHUTDOWN_READ);
+    return NULL;
+  case VIO::SHUTDOWN_WRITE:
+    do_io_shutdown(IO_SHUTDOWN_WRITE);
+    return NULL;
+  case VIO::SHUTDOWN_READWRITE:
+    do_io_shutdown(IO_SHUTDOWN_READWRITE);
+    return NULL;
+  }
+  ink_assert(!"cannot use default implementation for do_io operation");
+  return NULL;
+}
+
+TS_INLINE void
+VConnection::set_continuation(VIO *, Continuation *)
+{
+}
+TS_INLINE void
+VConnection::reenable(VIO *)
+{
+}
+TS_INLINE void
+VConnection::reenable_re(VIO * vio)
+{
+  reenable(vio);
+}
+#endif
diff --git a/iocore/eventsystem/P_VIO.h b/iocore/eventsystem/P_VIO.h
new file mode 100644
index 00000000..39d88b22
--- /dev/null
+++ b/iocore/eventsystem/P_VIO.h
@@ -0,0 +1,139 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#if !defined ( P_VIO_h)
+#define  P_VIO_h
+#include "I_VIO.h"
+
+TS_INLINE
+VIO::VIO(int aop)
+  :_cont(NULL),
+   nbytes(0),
+   ndone(0),
+   op(aop),
+   buffer(),
+   vc_server(0),
+   mutex(0)
+{ }
+
+/////////////////////////////////////////////////////////////
+//
+//  VIO::VIO()
+//
+/////////////////////////////////////////////////////////////
+TS_INLINE
+VIO::VIO()
+  :_cont(0),
+   nbytes(0),
+   ndone(0),
+   op(VIO::NONE),
+   buffer(),
+   vc_server(0),
+   mutex(0)
+{ }
+
+TS_INLINE Continuation *
+VIO::get_continuation()
+{
+  return _cont;
+}
+TS_INLINE void
+VIO::set_writer(MIOBuffer * writer)
+{
+  buffer.writer_for(writer);
+}
+TS_INLINE void
+VIO::set_reader(IOBufferReader * reader)
+{
+  buffer.reader_for(reader);
+}
+TS_INLINE MIOBuffer *
+VIO::get_writer()
+{
+  return buffer.writer();
+}
+TS_INLINE IOBufferReader *
+VIO::get_reader()
+{
+  return (buffer.reader());
+}
+TS_INLINE int64_t
+VIO::ntodo()
+{
+  return nbytes - ndone;
+}
+TS_INLINE void
+VIO::done()
+{
+  if (buffer.reader())
+    nbytes = ndone + buffer.reader()->read_avail();
+  else
+    nbytes = ndone;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  VIO::set_continuation()
+//
+/////////////////////////////////////////////////////////////
+TS_INLINE void
+VIO::set_continuation(Continuation * acont)
+{
+  if (vc_server)
+    vc_server->set_continuation(this, acont);
+  if (acont) {
+    mutex = acont->mutex;
+    _cont = acont;
+  } else {
+    mutex = NULL;
+    _cont = NULL;
+  }
+  return;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  VIO::reenable()
+//
+/////////////////////////////////////////////////////////////
+TS_INLINE void
+VIO::reenable()
+{
+  if (vc_server)
+    vc_server->reenable(this);
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  VIO::reenable_re()
+//
+/////////////////////////////////////////////////////////////
+TS_INLINE void
+VIO::reenable_re()
+{
+  if (vc_server)
+    vc_server->reenable_re(this);
+}
+
+#endif /* #if !defined ( P_VIO_h) */
diff --git a/iocore/eventsystem/Processor.cc b/iocore/eventsystem/Processor.cc
new file mode 100644
index 00000000..f46741e6
--- /dev/null
+++ b/iocore/eventsystem/Processor.cc
@@ -0,0 +1,90 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Processor.cc
+
+  Processor objects process requests which are placed in the Processor's
+  input queue.  A Processor can contain multiple threads to process
+  requests in the queue.  Requests in the queue are Continuations, which
+  describe functions to run, and what to do when the function is complete
+  (if anything).
+
+  Basically, Processors should be viewed as multi-threaded schedulers which
+  process request Continuations from their queue.  Requests can be made of
+  a Processor either by directly adding a request Continuation to the queue,
+  or more conveniently, by calling a method service call which synthesizes
+  the appropriate request Continuation and places it in the queue.
+
+
+ ****************************************************************************/
+
+#include "P_EventSystem.h"
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Processor::Processor()
+//
+//      Constructor for a Processor.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+Processor::Processor()
+{
+}                               /* End Processor::Processor() */
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Processor::~Processor()
+//
+//      Destructor for a Processor.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+Processor::~Processor()
+{
+}                               /* End Processor::~Processor() */
+
+//////////////////////////////////////////////////////////////////
+//
+//  Processor::create_thread()
+//
+//////////////////////////////////////////////////////////////////
+Thread *
+Processor::create_thread(int /* thread_index */)
+{
+  ink_release_assert(!"Processor::create_thread -- no default implementation");
+  return ((Thread *) 0);
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  Processor::get_thread_count()
+//
+//////////////////////////////////////////////////////////////////
+int
+Processor::get_thread_count()
+{
+  return (0);
+}
diff --git a/iocore/eventsystem/ProtectedQueue.cc b/iocore/eventsystem/ProtectedQueue.cc
new file mode 100644
index 00000000..cc735a3e
--- /dev/null
+++ b/iocore/eventsystem/ProtectedQueue.cc
@@ -0,0 +1,169 @@
+/** @file
+
+  FIFO queue
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  ProtectedQueue implements a FIFO queue with the following functionality:
+    -# Multiple threads could be simultaneously trying to enqueue and
+      dequeue. Hence the queue needs to be protected with mutex.
+    -# In case the queue is empty, dequeue() sleeps for a specified amount
+      of time, or until a new element is inserted, whichever is earlier.
+
+*/
+
+#include "P_EventSystem.h"
+
+
+// The protected queue is designed to delay signaling of threads
+// until some amount of work has been completed on the current thread
+// in order to prevent excess context switches.
+//
+// Defining EAGER_SIGNALLING disables this behavior and causes
+// threads to be made runnable immediately.
+//
+// #define EAGER_SIGNALLING
+
+extern ClassAllocator<Event> eventAllocator;
+
+void
+ProtectedQueue::enqueue(Event *e , bool fast_signal)
+{
+  ink_assert(!e->in_the_prot_queue && !e->in_the_priority_queue);
+  EThread *e_ethread = e->ethread;
+  e->in_the_prot_queue = 1;
+  bool was_empty = (ink_atomiclist_push(&al, e) == NULL);
+
+  if (was_empty) {
+    EThread *inserting_thread = this_ethread();
+    // queue e->ethread in the list of threads to be signalled
+    // inserting_thread == 0 means it is not a regular EThread
+    if (inserting_thread != e_ethread) {
+      if (!inserting_thread || !inserting_thread->ethreads_to_be_signalled) {
+        signal();
+        if (fast_signal) {
+          if (e_ethread->signal_hook)
+            e_ethread->signal_hook(e_ethread);
+        }
+      } else {
+#ifdef EAGER_SIGNALLING
+        // Try to signal now and avoid deferred posting.
+        if (e_ethread->EventQueueExternal.try_signal())
+          return;
+#endif
+        if (fast_signal) {
+          if (e_ethread->signal_hook)
+            e_ethread->signal_hook(e_ethread);
+        }
+        int &t = inserting_thread->n_ethreads_to_be_signalled;
+        EThread **sig_e = inserting_thread->ethreads_to_be_signalled;
+        if ((t + 1) >= eventProcessor.n_ethreads) {
+          // we have run out of room
+          if ((t + 1) == eventProcessor.n_ethreads) {
+            // convert to direct map, put each ethread (sig_e[i]) into
+            // the direct map loation: sig_e[sig_e[i]->id]
+            for (int i = 0; i < t; i++) {
+              EThread *cur = sig_e[i];  // put this ethread
+              while (cur) {
+                EThread *next = sig_e[cur->id]; // into this location
+                if (next == cur)
+                  break;
+                sig_e[cur->id] = cur;
+                cur = next;
+              }
+              // if not overwritten
+              if (sig_e[i] && sig_e[i]->id != i)
+                sig_e[i] = 0;
+            }
+            t++;
+          }
+          // we have a direct map, insert this EThread
+          sig_e[e_ethread->id] = e_ethread;
+        } else
+          // insert into vector
+          sig_e[t++] = e_ethread;
+      }
+    }
+  }
+}
+
+void
+flush_signals(EThread * thr)
+{
+  ink_assert(this_ethread() == thr);
+  int n = thr->n_ethreads_to_be_signalled;
+  if (n > eventProcessor.n_ethreads)
+    n = eventProcessor.n_ethreads;      // MAX
+  int i;
+
+  // Since the lock is only there to prevent a race in ink_cond_timedwait
+  // the lock is taken only for a short time, thus it is unlikely that
+  // this code has any effect.
+#ifdef EAGER_SIGNALLING
+  for (i = 0; i < n; i++) {
+    // Try to signal as many threads as possible without blocking.
+    if (thr->ethreads_to_be_signalled[i]) {
+      if (thr->ethreads_to_be_signalled[i]->EventQueueExternal.try_signal())
+        thr->ethreads_to_be_signalled[i] = 0;
+    }
+  }
+#endif
+  for (i = 0; i < n; i++) {
+    if (thr->ethreads_to_be_signalled[i]) {
+      thr->ethreads_to_be_signalled[i]->EventQueueExternal.signal();
+      if (thr->ethreads_to_be_signalled[i]->signal_hook)
+        thr->ethreads_to_be_signalled[i]->signal_hook(thr->ethreads_to_be_signalled[i]);
+      thr->ethreads_to_be_signalled[i] = 0;
+    }
+  }
+  thr->n_ethreads_to_be_signalled = 0;
+}
+
+void
+ProtectedQueue::dequeue_timed(ink_hrtime cur_time, ink_hrtime timeout, bool sleep)
+{
+  (void) cur_time;
+  Event *e;
+  if (sleep) {
+    ink_mutex_acquire(&lock);
+    if (INK_ATOMICLIST_EMPTY(al)) {
+      timespec ts = ink_hrtime_to_timespec(timeout);
+      ink_cond_timedwait(&might_have_data, &lock, &ts);
+    }
+    ink_mutex_release(&lock);
+  }
+
+  e = (Event *) ink_atomiclist_popall(&al);
+  // invert the list, to preserve order
+  SLL<Event, Event::Link_link> l, t;
+  t.head = e;
+  while ((e = t.pop()))
+    l.push(e);
+  // insert into localQueue
+  while ((e = l.pop())) {
+    if (!e->cancelled)
+      localQueue.enqueue(e);
+    else {
+      e->mutex = NULL;
+      eventAllocator.free(e);
+    }
+  }
+}
diff --git a/iocore/eventsystem/ProxyAllocator.cc b/iocore/eventsystem/ProxyAllocator.cc
new file mode 100644
index 00000000..327b49b8
--- /dev/null
+++ b/iocore/eventsystem/ProxyAllocator.cc
@@ -0,0 +1,53 @@
+/** @file
+
+    Implementation of the proxy allocators.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#include "I_EventSystem.h"
+
+int thread_freelist_size = 512;
+
+void*
+thread_alloc(Allocator &a, ProxyAllocator &l)
+{
+#if TS_USE_FREELIST && !TS_USE_RECLAIMABLE_FREELIST
+  if (l.freelist) {
+    void *v = (void *) l.freelist;
+    l.freelist = *(void **) l.freelist;
+    l.allocated--;
+    return v;
+  }
+#else
+  (void)l;
+#endif
+  return a.alloc_void();
+}
+
+void
+thread_freeup(Allocator &a, ProxyAllocator &l)
+{
+  while (l.freelist) {
+    void *v = (void *) l.freelist;
+    l.freelist = *(void **) l.freelist;
+    l.allocated--;
+    a.free_void(v);                  // we could use a bulk free here
+  }
+  ink_assert(!l.allocated);
+}
diff --git a/iocore/eventsystem/SocketManager.cc b/iocore/eventsystem/SocketManager.cc
new file mode 100644
index 00000000..59c120b4
--- /dev/null
+++ b/iocore/eventsystem/SocketManager.cc
@@ -0,0 +1,66 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  SocketManager.cc
+ ****************************************************************************/
+#include "libts.h"
+#include "P_EventSystem.h"
+
+SocketManager socketManager;
+
+SocketManager::SocketManager()
+  : pagesize(ats_pagesize())
+{
+}
+
+SocketManager::~SocketManager()
+{
+  // free the hash table and values
+}
+
+int
+SocketManager::ink_bind(int s, struct sockaddr const* name, int namelen, short Proto)
+{
+  (void) Proto;
+  return safe_bind(s, name, namelen);
+}
+
+int
+SocketManager::close(int s)
+{
+  int res;
+
+  if (s == 0)
+    return -EACCES;
+  else if (s < 0)
+    return -EINVAL;
+
+  do {
+    res = ::close(s);
+    if (res == -1)
+      res = -errno;
+  } while (res == -EINTR);
+  return res;
+}
diff --git a/iocore/eventsystem/Tasks.cc b/iocore/eventsystem/Tasks.cc
new file mode 100644
index 00000000..989d0576
--- /dev/null
+++ b/iocore/eventsystem/Tasks.cc
@@ -0,0 +1,40 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_Tasks.h"
+
+// Globals
+EventType ET_TASK = ET_CALL;
+TasksProcessor tasksProcessor;
+
+
+// Note that if the number of task_threads is 0, all continuations scheduled for
+// ET_TASK ends up running on ET_CALL (which is the net-threads).
+int
+TasksProcessor::start(int task_threads, size_t stacksize)
+{
+  if (task_threads > 0) {
+    ET_TASK = eventProcessor.spawn_event_threads(task_threads, "ET_TASK", stacksize);
+  }
+  return 0;
+}
diff --git a/iocore/eventsystem/Thread.cc b/iocore/eventsystem/Thread.cc
new file mode 100644
index 00000000..1a9c5818
--- /dev/null
+++ b/iocore/eventsystem/Thread.cc
@@ -0,0 +1,106 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Basic Threads
+
+
+
+**************************************************************************/
+#include "P_EventSystem.h"
+
+  ///////////////////////////////////////////////
+  // Common Interface impl                     //
+  ///////////////////////////////////////////////
+
+static ink_thread_key init_thread_key();
+
+ProxyMutex *global_mutex = NULL;
+ink_hrtime
+  Thread::cur_time = 0;
+inkcoreapi ink_thread_key
+  Thread::thread_data_key = init_thread_key();
+
+Thread::Thread()
+{
+  mutex = new_ProxyMutex();
+  mutex_ptr = mutex;
+  MUTEX_TAKE_LOCK(mutex, (EThread *) this);
+  mutex->nthread_holding = THREAD_MUTEX_THREAD_HOLDING;
+}
+
+static void
+key_destructor(void *value)
+{
+  (void) value;
+}
+
+ink_thread_key
+init_thread_key()
+{
+  ink_thread_key_create(&Thread::thread_data_key, key_destructor);
+  return Thread::thread_data_key;
+}
+
+  ///////////////////////////////////////////////
+  // Unix & non-NT Interface impl              //
+  ///////////////////////////////////////////////
+
+struct thread_data_internal
+{
+  ThreadFunction f;
+  void *a;
+  Thread *me;
+  char name[MAX_THREAD_NAME_LENGTH];
+};
+
+static void *
+spawn_thread_internal(void *a)
+{
+  thread_data_internal *p = (thread_data_internal *) a;
+
+  p->me->set_specific();
+  ink_set_thread_name(p->name);
+  if (p->f)
+    p->f(p->a);
+  else
+    p->me->execute();
+  ats_free(a);
+  return NULL;
+}
+
+ink_thread
+Thread::start(const char* name, size_t stacksize, ThreadFunction f, void *a)
+{
+  thread_data_internal *p = (thread_data_internal *)ats_malloc(sizeof(thread_data_internal));
+
+  p->f = f;
+  p->a = a;
+  p->me = this;
+  memset(p->name, 0, MAX_THREAD_NAME_LENGTH);
+  ink_strlcpy(p->name, name, MAX_THREAD_NAME_LENGTH);
+  tid = ink_thread_create(spawn_thread_internal, (void *) p, 0, stacksize);
+
+  return tid;
+}
diff --git a/iocore/eventsystem/UnixEThread.cc b/iocore/eventsystem/UnixEThread.cc
new file mode 100644
index 00000000..c0907eb8
--- /dev/null
+++ b/iocore/eventsystem/UnixEThread.cc
@@ -0,0 +1,305 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//////////////////////////////////////////////////////////////////////
+//
+// The EThread Class
+//
+/////////////////////////////////////////////////////////////////////
+#include "P_EventSystem.h"
+
+#if HAVE_EVENTFD
+#include <sys/eventfd.h>
+#endif
+
+struct AIOCallback;
+
+#define MAX_HEARTBEATS_MISSED         	10
+#define NO_HEARTBEAT                  	-1
+#define THREAD_MAX_HEARTBEAT_MSECONDS	60
+#define NO_ETHREAD_ID                   -1
+
+EThread::EThread()
+  : generator((uint64_t)ink_get_hrtime_internal() ^ (uint64_t)(uintptr_t)this),
+   ethreads_to_be_signalled(NULL),
+   n_ethreads_to_be_signalled(0),
+   main_accept_index(-1),
+   id(NO_ETHREAD_ID), event_types(0),
+   signal_hook(0),
+   tt(REGULAR), eventsem(NULL)
+{
+  memset(thread_private, 0, PER_THREAD_DATA);
+}
+
+EThread::EThread(ThreadType att, int anid)
+  : generator((uint64_t)ink_get_hrtime_internal() ^ (uint64_t)(uintptr_t)this),
+    ethreads_to_be_signalled(NULL),
+    n_ethreads_to_be_signalled(0),
+    main_accept_index(-1),
+    id(anid),
+    event_types(0),
+    signal_hook(0),
+    tt(att),
+    eventsem(NULL),
+    l1_hash(NULL)
+{
+  ethreads_to_be_signalled = (EThread **)ats_malloc(MAX_EVENT_THREADS * sizeof(EThread *));
+  memset((char *) ethreads_to_be_signalled, 0, MAX_EVENT_THREADS * sizeof(EThread *));
+  memset(thread_private, 0, PER_THREAD_DATA);
+#if HAVE_EVENTFD
+  evfd = eventfd(0, O_NONBLOCK | FD_CLOEXEC);
+  if (evfd < 0) {
+    if (errno == EINVAL) { // flags invalid for kernel <= 2.6.26
+      evfd = eventfd(0,0);
+      if (evfd < 0)
+        Fatal("EThread::EThread: %d=eventfd(0,0),errno(%d)",evfd,errno);
+    } else
+      Fatal("EThread::EThread: %d=eventfd(0,O_NONBLOCK | FD_CLOEXEC),errno(%d)",evfd,errno);
+  }
+  fcntl(evfd, F_SETFD, FD_CLOEXEC);
+  fcntl(evfd, F_SETFL, O_NONBLOCK);
+#elif TS_USE_PORT
+  /* Solaris ports requires no crutches to do cross thread signaling.
+   * We'll just port_send the event straight over the port.
+   */
+#else
+  ink_release_assert(pipe(evpipe) >= 0);
+  fcntl(evpipe[0], F_SETFD, FD_CLOEXEC);
+  fcntl(evpipe[0], F_SETFL, O_NONBLOCK);
+  fcntl(evpipe[1], F_SETFD, FD_CLOEXEC);
+  fcntl(evpipe[1], F_SETFL, O_NONBLOCK);
+#endif
+}
+
+EThread::EThread(ThreadType att, Event * e, ink_sem * sem)
+ : generator((uint32_t)((uintptr_t)time(NULL) ^ (uintptr_t) this)),
+   ethreads_to_be_signalled(NULL),
+   n_ethreads_to_be_signalled(0),
+   main_accept_index(-1),
+   id(NO_ETHREAD_ID), event_types(0),
+   signal_hook(0),
+   tt(att), oneevent(e), eventsem(sem)
+{
+  ink_assert(att == DEDICATED);
+  memset(thread_private, 0, PER_THREAD_DATA);
+}
+
+
+// Provide a destructor so that SDK functions which create and destroy
+// threads won't have to deal with EThread memory deallocation.
+EThread::~EThread()
+{
+  if (n_ethreads_to_be_signalled > 0)
+    flush_signals(this);
+  ats_free(ethreads_to_be_signalled);
+  // TODO: This can't be deleted ....
+  // delete[]l1_hash;
+}
+
+bool
+EThread::is_event_type(EventType et)
+{
+  return !!(event_types & (1 << (int) et));
+}
+
+void
+EThread::set_event_type(EventType et)
+{
+  event_types |= (1 << (int) et);
+}
+
+void
+EThread::process_event(Event * e, int calling_code)
+{
+  ink_assert((!e->in_the_prot_queue && !e->in_the_priority_queue));
+  MUTEX_TRY_LOCK_FOR(lock, e->mutex.m_ptr, this, e->continuation);
+  if (!lock) {
+    e->timeout_at = cur_time + DELAY_FOR_RETRY;
+    EventQueueExternal.enqueue_local(e);
+  } else {
+    if (e->cancelled) {
+      free_event(e);
+      return;
+    }
+    Continuation *c_temp = e->continuation;
+    e->continuation->handleEvent(calling_code, e);
+    ink_assert(!e->in_the_priority_queue);
+    ink_assert(c_temp == e->continuation);
+    MUTEX_RELEASE(lock);
+    if (e->period) {
+      if (!e->in_the_prot_queue && !e->in_the_priority_queue) {
+        if (e->period < 0)
+          e->timeout_at = e->period;
+        else {
+          cur_time = ink_get_based_hrtime();
+          e->timeout_at = cur_time + e->period;
+          if (e->timeout_at < cur_time)
+            e->timeout_at = cur_time;
+        }
+        EventQueueExternal.enqueue_local(e);
+      }
+    } else if (!e->in_the_prot_queue && !e->in_the_priority_queue)
+      free_event(e);
+  }
+}
+
+//
+// void  EThread::execute()
+//
+// Execute loops forever on:
+// Find the earliest event.
+// Sleep until the event time or until an earlier event is inserted
+// When its time for the event, try to get the appropriate continuation
+// lock. If successful, call the continuation, otherwise put the event back
+// into the queue.
+//
+
+void
+EThread::execute() {
+  switch (tt) {
+
+    case REGULAR: {
+      Event *e;
+      Que(Event, link) NegativeQueue;
+      ink_hrtime next_time = 0;
+
+      // give priority to immediate events
+      for (;;) {
+        // execute all the available external events that have
+        // already been dequeued
+        cur_time = ink_get_based_hrtime_internal();
+        while ((e = EventQueueExternal.dequeue_local())) {
+          if (e->cancelled)
+             free_event(e);
+          else if (!e->timeout_at) { // IMMEDIATE
+            ink_assert(e->period == 0);
+            process_event(e, e->callback_event);
+          } else if (e->timeout_at > 0) // INTERVAL
+            EventQueue.enqueue(e, cur_time);
+          else { // NEGATIVE
+            Event *p = NULL;
+            Event *a = NegativeQueue.head;
+            while (a && a->timeout_at > e->timeout_at) {
+              p = a;
+              a = a->link.next;
+            }
+            if (!a)
+              NegativeQueue.enqueue(e);
+            else
+              NegativeQueue.insert(e, p);
+          }
+        }
+        bool done_one;
+        do {
+          done_one = false;
+          // execute all the eligible internal events
+          EventQueue.check_ready(cur_time, this);
+          while ((e = EventQueue.dequeue_ready(cur_time))) {
+            ink_assert(e);
+            ink_assert(e->timeout_at > 0);
+            if (e->cancelled)
+              free_event(e);
+            else {
+              done_one = true;
+              process_event(e, e->callback_event);
+            }
+          }
+        } while (done_one);
+        // execute any negative (poll) events
+        if (NegativeQueue.head) {
+          if (n_ethreads_to_be_signalled)
+            flush_signals(this);
+          // dequeue all the external events and put them in a local
+          // queue. If there are no external events available, don't
+          // do a cond_timedwait.
+          if (!INK_ATOMICLIST_EMPTY(EventQueueExternal.al))
+            EventQueueExternal.dequeue_timed(cur_time, next_time, false);
+          while ((e = EventQueueExternal.dequeue_local())) {
+            if (!e->timeout_at)
+              process_event(e, e->callback_event);
+            else {
+              if (e->cancelled)
+                free_event(e);
+              else {
+                // If its a negative event, it must be a result of
+                // a negative event, which has been turned into a
+                // timed-event (because of a missed lock), executed
+                // before the poll. So, it must
+                // be executed in this round (because you can't have
+                // more than one poll between two executions of a
+                // negative event)
+                if (e->timeout_at < 0) {
+                  Event *p = NULL;
+                  Event *a = NegativeQueue.head;
+                  while (a && a->timeout_at > e->timeout_at) {
+                    p = a;
+                    a = a->link.next;
+                  }
+                  if (!a)
+                    NegativeQueue.enqueue(e);
+                  else
+                    NegativeQueue.insert(e, p);
+                } else
+                  EventQueue.enqueue(e, cur_time);
+              }
+            }
+          }
+          // execute poll events
+          while ((e = NegativeQueue.dequeue()))
+            process_event(e, EVENT_POLL);
+          if (!INK_ATOMICLIST_EMPTY(EventQueueExternal.al))
+            EventQueueExternal.dequeue_timed(cur_time, next_time, false);
+        } else {                // Means there are no negative events
+          next_time = EventQueue.earliest_timeout();
+          ink_hrtime sleep_time = next_time - cur_time;
+          if (sleep_time > THREAD_MAX_HEARTBEAT_MSECONDS * HRTIME_MSECOND) {
+            next_time = cur_time + THREAD_MAX_HEARTBEAT_MSECONDS * HRTIME_MSECOND;
+            sleep_time = THREAD_MAX_HEARTBEAT_MSECONDS * HRTIME_MSECOND;
+          }
+          // dequeue all the external events and put them in a local
+          // queue. If there are no external events available, do a
+          // cond_timedwait.
+          if (n_ethreads_to_be_signalled)
+            flush_signals(this);
+          EventQueueExternal.dequeue_timed(cur_time, next_time, true);
+        }
+      }
+    }
+
+    case DEDICATED: {
+      // coverity[lock]
+      if (eventsem)
+        ink_sem_wait(eventsem);
+      MUTEX_TAKE_LOCK_FOR(oneevent->mutex, this, oneevent->continuation);
+      oneevent->continuation->handleEvent(EVENT_IMMEDIATE, oneevent);
+      MUTEX_UNTAKE_LOCK(oneevent->mutex, this);
+      free_event(oneevent);
+      break;
+    }
+
+    default:
+      ink_assert(!"bad case value (execute)");
+      break;
+  }                             /* End switch */
+  // coverity[missing_unlock]
+}
diff --git a/iocore/eventsystem/UnixEvent.cc b/iocore/eventsystem/UnixEvent.cc
new file mode 100644
index 00000000..634cee9a
--- /dev/null
+++ b/iocore/eventsystem/UnixEvent.cc
@@ -0,0 +1,98 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Event.cc
+
+
+*****************************************************************************/
+#include "P_EventSystem.h"
+
+ClassAllocator<Event> eventAllocator("eventAllocator", 256);
+
+void
+Event::schedule_imm(int acallback_event)
+{
+  callback_event = acallback_event;
+  ink_assert(ethread == this_ethread());
+  if (in_the_priority_queue)
+    ethread->EventQueue.remove(this);
+  timeout_at = 0;
+  period = 0;
+  immediate = true;
+  mutex = continuation->mutex;
+  if (!in_the_prot_queue)
+    ethread->EventQueueExternal.enqueue_local(this);
+}
+
+void
+Event::schedule_at(ink_hrtime atimeout_at, int acallback_event)
+{
+  callback_event = acallback_event;
+  ink_assert(ethread == this_ethread());
+  ink_assert(atimeout_at > 0);
+  if (in_the_priority_queue)
+    ethread->EventQueue.remove(this);
+  timeout_at = atimeout_at;
+  period = 0;
+  immediate = false;
+  mutex = continuation->mutex;
+  if (!in_the_prot_queue)
+    ethread->EventQueueExternal.enqueue_local(this);
+}
+
+void
+Event::schedule_in(ink_hrtime atimeout_in, int acallback_event)
+{
+  callback_event = acallback_event;
+  ink_assert(ethread == this_ethread());
+  if (in_the_priority_queue)
+    ethread->EventQueue.remove(this);
+  timeout_at = ink_get_based_hrtime() + atimeout_in;
+  period = 0;
+  immediate = false;
+  mutex = continuation->mutex;
+  if (!in_the_prot_queue)
+    ethread->EventQueueExternal.enqueue_local(this);
+}
+
+void
+Event::schedule_every(ink_hrtime aperiod, int acallback_event)
+{
+  callback_event = acallback_event;
+  ink_assert(ethread == this_ethread());
+  ink_assert(aperiod != 0);
+  if (in_the_priority_queue)
+    ethread->EventQueue.remove(this);
+  if (aperiod < 0) {
+    timeout_at = aperiod;
+  } else {
+    timeout_at = ink_get_based_hrtime() + aperiod;
+  }
+  period = aperiod;
+  immediate = false;
+  mutex = continuation->mutex;
+  if (!in_the_prot_queue)
+    ethread->EventQueueExternal.enqueue_local(this);
+}
diff --git a/iocore/eventsystem/UnixEventProcessor.cc b/iocore/eventsystem/UnixEventProcessor.cc
new file mode 100644
index 00000000..14fb58a0
--- /dev/null
+++ b/iocore/eventsystem/UnixEventProcessor.cc
@@ -0,0 +1,183 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"      /* MAGIC_EDITING_TAG */
+#include <sched.h>
+#if TS_USE_HWLOC
+#include <alloca.h>
+#include <hwloc.h>
+#endif
+#include "ink_defs.h"
+
+EventType
+EventProcessor::spawn_event_threads(int n_threads, const char* et_name, size_t stacksize)
+{
+  char thr_name[MAX_THREAD_NAME_LENGTH];
+  EventType new_thread_group_id;
+  int i;
+
+  ink_release_assert(n_threads > 0);
+  ink_release_assert((n_ethreads + n_threads) <= MAX_EVENT_THREADS);
+  ink_release_assert(n_thread_groups < MAX_EVENT_TYPES);
+
+  new_thread_group_id = (EventType) n_thread_groups;
+
+  for (i = 0; i < n_threads; i++) {
+    EThread *t = new EThread(REGULAR, n_ethreads + i);
+    all_ethreads[n_ethreads + i] = t;
+    eventthread[new_thread_group_id][i] = t;
+    t->set_event_type(new_thread_group_id);
+  }
+
+  n_threads_for_type[new_thread_group_id] = n_threads;
+  for (i = 0; i < n_threads; i++) {
+    snprintf(thr_name, MAX_THREAD_NAME_LENGTH, "[%s %d]", et_name, i);
+    eventthread[new_thread_group_id][i]->start(thr_name, stacksize);
+  }
+
+  n_thread_groups++;
+  n_ethreads += n_threads;
+  Debug("iocore_thread", "Created thread group '%s' id %d with %d threads", et_name, new_thread_group_id, n_threads);
+
+  return new_thread_group_id;
+}
+
+
+class EventProcessor eventProcessor;
+
+int
+EventProcessor::start(int n_event_threads, size_t stacksize)
+{
+  char thr_name[MAX_THREAD_NAME_LENGTH];
+  int i;
+
+  // do some sanity checking.
+  static int started = 0;
+  ink_release_assert(!started);
+  ink_release_assert(n_event_threads > 0 && n_event_threads <= MAX_EVENT_THREADS);
+  started = 1;
+
+  n_ethreads = n_event_threads;
+  n_thread_groups = 1;
+
+  int first_thread = 1;
+
+  for (i = 0; i < n_event_threads; i++) {
+    EThread *t = new EThread(REGULAR, i);
+    if (first_thread && !i) {
+      ink_thread_setspecific(Thread::thread_data_key, t);
+      global_mutex = t->mutex;
+      t->cur_time = ink_get_based_hrtime_internal();
+    }
+    all_ethreads[i] = t;
+
+    eventthread[ET_CALL][i] = t;
+    t->set_event_type((EventType) ET_CALL);
+  }
+  n_threads_for_type[ET_CALL] = n_event_threads;
+
+#if TS_USE_HWLOC
+  int affinity = 0;
+  REC_ReadConfigInteger(affinity, "proxy.config.exec_thread.affinity");
+  hwloc_obj_t obj;
+  hwloc_obj_type_t obj_type;
+  int obj_count = 0;
+  char *obj_name;
+
+  switch(affinity) {
+    case 4:           // assign threads to logical processing units
+// Older versions of libhwloc (eg. Ubuntu 10.04) don't have HWLOC_OBJ_PU.
+#if HAVE_HWLOC_OBJ_PU
+      obj_type = HWLOC_OBJ_PU;
+      obj_name = (char *) "Logical Processor";
+      break;
+#endif
+    case 3:           // assign threads to real cores
+      obj_type = HWLOC_OBJ_CORE;
+      obj_name = (char *) "Core";
+      break;
+    case 1:           // assign threads to NUMA nodes (often 1:1 with sockets)
+      obj_type = HWLOC_OBJ_NODE;
+      obj_name = (char *) "NUMA Node";
+      if (hwloc_get_nbobjs_by_type(ink_get_topology(), obj_type) > 0) {
+        break;
+      }
+    case 2:           // assign threads to sockets
+      obj_type = HWLOC_OBJ_SOCKET;
+      obj_name = (char *) "Socket";
+      break;
+    default:         // assign threads to the machine as a whole (a level below SYSTEM)
+      obj_type = HWLOC_OBJ_MACHINE;
+      obj_name = (char *) "Machine";
+  }
+
+  obj_count = hwloc_get_nbobjs_by_type(ink_get_topology(), obj_type);
+  Debug("iocore_thread", "Affinity: %d %ss: %d PU: %d", affinity, obj_name, obj_count, ink_number_of_processors());
+
+#endif
+  for (i = first_thread; i < n_ethreads; i++) {
+    snprintf(thr_name, MAX_THREAD_NAME_LENGTH, "[ET_NET %d]", i);
+    ink_thread tid = all_ethreads[i]->start(thr_name, stacksize);
+    (void)tid;
+#if TS_USE_HWLOC
+    if (obj_count > 0) {
+      obj = hwloc_get_obj_by_type(ink_get_topology(), obj_type, i % obj_count);
+#if HWLOC_API_VERSION >= 0x00010100
+      int cpu_mask_len = hwloc_bitmap_snprintf(NULL, 0, obj->cpuset) + 1;
+      char *cpu_mask = (char *) alloca(cpu_mask_len);
+      hwloc_bitmap_snprintf(cpu_mask, cpu_mask_len, obj->cpuset);
+      Debug("iocore_thread","EThread: %d %s: %d CPU Mask: %s\n", i, obj_name, obj->logical_index, cpu_mask);
+#else
+      Debug("iocore_thread","EThread: %d %s: %d\n", i, obj_name, obj->logical_index);
+#endif // HWLOC_API_VERSION
+      hwloc_set_thread_cpubind(ink_get_topology(), tid, obj->cpuset, HWLOC_CPUBIND_STRICT);
+    } else {
+      Warning("hwloc returned an unexpected value -- CPU affinity disabled");
+    }
+#endif // TS_USE_HWLOC
+  }
+
+  Debug("iocore_thread", "Created event thread group id %d with %d threads", ET_CALL, n_event_threads);
+  return 0;
+}
+
+void
+EventProcessor::shutdown()
+{
+}
+
+Event *
+EventProcessor::spawn_thread(Continuation *cont, const char* thr_name, size_t stacksize, ink_sem *sem)
+{
+  ink_release_assert(n_dthreads < MAX_EVENT_THREADS);
+  Event *e = eventAllocator.alloc();
+
+  e->init(cont, 0, 0);
+  all_dthreads[n_dthreads] = new EThread(DEDICATED, e, sem);
+  e->ethread = all_dthreads[n_dthreads];
+  e->mutex = e->continuation->mutex = all_dthreads[n_dthreads]->mutex;
+  n_dthreads++;
+  e->ethread->start(thr_name, stacksize);
+
+  return e;
+}
diff --git a/iocore/eventsystem/test_Buffer.cc b/iocore/eventsystem/test_Buffer.cc
new file mode 100644
index 00000000..a86c86aa
--- /dev/null
+++ b/iocore/eventsystem/test_Buffer.cc
@@ -0,0 +1,150 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_EventSystem.h"
+#include "I_Layout.h"
+
+#define TEST_TIME_SECOND 60
+#define TEST_THREADS     2
+
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+static void
+init_diags(const char *bdt, const char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    Warning("couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  Status("opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+int
+main(int /* argc ATS_UNUSED */, const char */* argv ATS_UNUSED */[])
+{
+  RecModeT mode_type = RECM_STAND_ALONE;
+
+  Layout::create();
+  init_diags("", NULL);
+  RecProcessInit(mode_type);
+
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(TEST_THREADS);
+
+  for (unsigned i = 0; i < 100; ++i) {
+    MIOBuffer *b1 = new_MIOBuffer(default_large_iobuffer_size);
+    IOBufferReader *b1reader ATS_UNUSED = b1->alloc_reader();
+    b1->fill(b1->write_avail());
+
+    MIOBuffer *b2 = new_MIOBuffer(default_large_iobuffer_size);
+    IOBufferReader *b2reader ATS_UNUSED = b2->alloc_reader();
+    b2->fill(b2->write_avail());
+
+    //b1->write(b2reader, 2*1024);
+
+    free_MIOBuffer(b2);
+    free_MIOBuffer(b1);
+  }
+
+  exit(0);
+  this_thread()->execute();
+  return 0;
+}
diff --git a/iocore/eventsystem/test_Event.cc b/iocore/eventsystem/test_Event.cc
new file mode 100644
index 00000000..fc2f9c3b
--- /dev/null
+++ b/iocore/eventsystem/test_Event.cc
@@ -0,0 +1,171 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_EventSystem.h"
+#include "I_Layout.h"
+
+#define TEST_TIME_SECOND 60
+#define TEST_THREADS     2
+
+int count;
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+static void
+init_diags(const char *bdt, const char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  strcpy(diags_logpath, DIAGS_LOG_FILE);
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    Warning("couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  Status("opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+struct alarm_printer:public Continuation
+{
+  alarm_printer(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER(&alarm_printer::dummy_function);
+  }
+  int dummy_function(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    ink_atomic_increment((int *) &count, 1);
+    printf("Count = %d\n", count);
+    return 0;
+  }
+};
+struct process_killer:public Continuation
+{
+  process_killer(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER(&process_killer::kill_function);
+  }
+  int kill_function(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    printf("Count is %d \n", count);
+    if (count <= 0)
+      exit(1);
+    if (count > TEST_TIME_SECOND * TEST_THREADS)
+      exit(1);
+    exit(0);
+    return 0;
+  }
+};
+
+int
+main(int /* argc ATS_UNUSED */, const char */* argv ATS_UNUSED */[])
+{
+  RecModeT mode_type = RECM_STAND_ALONE;
+  count = 0;
+
+  Layout::create();
+  init_diags("", NULL);
+  RecProcessInit(mode_type);
+
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(TEST_THREADS, 1048576); // Hardcoded stacksize at 1MB
+
+  alarm_printer *alrm = new alarm_printer(new_ProxyMutex());
+  process_killer *killer = new process_killer(new_ProxyMutex());
+  eventProcessor.schedule_in(killer, HRTIME_SECONDS(10));
+  eventProcessor.schedule_every(alrm, HRTIME_SECONDS(1));
+  this_thread()->execute();
+  return 0;
+}
diff --git a/iocore/eventsystem/test_I_Buffer.cc b/iocore/eventsystem/test_I_Buffer.cc
new file mode 100644
index 00000000..e236b517
--- /dev/null
+++ b/iocore/eventsystem/test_I_Buffer.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_EventSystem.h"
+#include "test_Buffer.cc"
diff --git a/iocore/eventsystem/test_I_Event.cc b/iocore/eventsystem/test_I_Event.cc
new file mode 100644
index 00000000..a8d7bc01
--- /dev/null
+++ b/iocore/eventsystem/test_I_Event.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"
+#include "test_Event.i"
diff --git a/iocore/eventsystem/test_P_Buffer.cc b/iocore/eventsystem/test_P_Buffer.cc
new file mode 100644
index 00000000..f26d8859
--- /dev/null
+++ b/iocore/eventsystem/test_P_Buffer.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"
+#include "test_Buffer.cc"
diff --git a/iocore/eventsystem/test_P_Event.cc b/iocore/eventsystem/test_P_Event.cc
new file mode 100644
index 00000000..a8d7bc01
--- /dev/null
+++ b/iocore/eventsystem/test_P_Event.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"
+#include "test_Event.i"
diff --git a/iocore/hostdb/HostDB.cc b/iocore/hostdb/HostDB.cc
new file mode 100644
index 00000000..ea902e9c
--- /dev/null
+++ b/iocore/hostdb/HostDB.cc
@@ -0,0 +1,2487 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#define _HOSTDB_CC_
+
+#include "P_HostDB.h"
+#include "I_Layout.h"
+#include "Show.h"
+
+// dxu: turn off all Diags.h 's function.
+//#define Debug
+//#define Warning
+//#define Note
+
+#include "ink_apidefs.h"
+
+HostDBProcessor hostDBProcessor;
+int HostDBProcessor::hostdb_strict_round_robin = 0;
+int HostDBProcessor::hostdb_timed_round_robin = 0;
+HostDBProcessor::Options const HostDBProcessor::DEFAULT_OPTIONS;
+HostDBContinuation::Options const HostDBContinuation::DEFAULT_OPTIONS;
+int hostdb_enable = true;
+int hostdb_migrate_on_demand = true;
+int hostdb_cluster = false;
+int hostdb_cluster_round_robin = false;
+int hostdb_lookup_timeout = 120;
+int hostdb_insert_timeout = 160;
+int hostdb_re_dns_on_reload = false;
+int hostdb_ttl_mode = TTL_OBEY;
+unsigned int hostdb_current_interval = 0;
+unsigned int hostdb_ip_stale_interval = HOST_DB_IP_STALE;
+unsigned int hostdb_ip_timeout_interval = HOST_DB_IP_TIMEOUT;
+unsigned int hostdb_ip_fail_timeout_interval = HOST_DB_IP_FAIL_TIMEOUT;
+unsigned int hostdb_serve_stale_but_revalidate = 0;
+char hostdb_filename[PATH_NAME_MAX + 1] = DEFAULT_HOST_DB_FILENAME;
+int hostdb_size = DEFAULT_HOST_DB_SIZE;
+int hostdb_sync_frequency = 120;
+int hostdb_srv_enabled = 0;
+int hostdb_disable_reverse_lookup = 0;
+
+ClassAllocator<HostDBContinuation> hostDBContAllocator("hostDBContAllocator");
+
+// Static configuration information
+
+HostDBCache hostDB;
+
+static  Queue <HostDBContinuation > remoteHostDBQueue[MULTI_CACHE_PARTITIONS];
+
+char *
+HostDBInfo::srvname(HostDBRoundRobin *rr)
+{
+  if (!is_srv || !data.srv.srv_offset)
+    return NULL;
+  ink_assert(this - rr->info >= 0 && this - rr->info < rr->rrcount && data.srv.srv_offset < rr->length);
+  return (char *) rr + data.srv.srv_offset;
+}
+
+static inline int
+corrupt_debugging_callout(HostDBInfo * e, RebuildMC & r)
+{
+  Debug("hostdb", "corrupt %ld part %d",
+    (long)((char *) &e->app.rr.offset - r.data), r.partition);
+  return -1;
+}
+
+static inline bool
+is_addr_valid(
+  uint8_t af, ///< Address family (format of data)
+  void* ptr ///< Raw address data (not a sockaddr variant!)
+) {
+  return
+    (AF_INET == af && INADDR_ANY != *(reinterpret_cast<in_addr_t*>(ptr)))
+    || (AF_INET6 == af && !IN6_IS_ADDR_UNSPECIFIED(reinterpret_cast<in6_addr*>(ptr)))
+    ;
+}
+
+static inline void
+ip_addr_set(
+  sockaddr* ip, ///< Target storage, sockaddr compliant.
+  uint8_t af, ///< Address format.
+  void* ptr ///< Raw address data
+) {
+  if (AF_INET6 == af)
+    ats_ip6_set(ip, *static_cast<in6_addr*>(ptr));
+  else if (AF_INET == af)
+    ats_ip4_set(ip, *static_cast<in_addr_t*>(ptr));
+  else ats_ip_invalidate(ip);
+}
+
+static inline void
+ip_addr_set(
+  IpAddr& ip, ///< Target storage.
+  uint8_t af, ///< Address format.
+  void* ptr ///< Raw address data
+) {
+  if (AF_INET6 == af)
+    ip = *static_cast<in6_addr*>(ptr);
+  else if (AF_INET == af)
+    ip = *static_cast<in_addr_t*>(ptr);
+  else
+    ip.invalidate();
+}
+
+inline void
+hostdb_cont_free(HostDBContinuation * cont)
+{
+  if (cont->pending_action)
+    cont->pending_action->cancel();
+  cont->mutex = 0;
+  cont->action.mutex = 0;
+  hostDBContAllocator.free(cont);
+}
+
+/* Check whether a resolution fail should lead to a retry.
+   The @a mark argument is updated if appropriate.
+   @return @c true if @a mark was updated, @c false if no retry should be done.
+*/
+static inline bool
+check_for_retry(HostDBMark& mark, HostResStyle style) {
+  bool zret = true;
+  if (HOSTDB_MARK_IPV4 == mark && HOST_RES_IPV4 == style)
+    mark = HOSTDB_MARK_IPV6;
+  else if (HOSTDB_MARK_IPV6 == mark && HOST_RES_IPV6 == style)
+    mark = HOSTDB_MARK_IPV4;
+  else
+    zret = false;
+  return zret;
+}
+
+char const*
+string_for(HostDBMark mark) {
+  static char const* STRING[] = {
+    "Generic", "IPv4", "IPv6", "SRV"
+  };
+  return STRING[mark];
+}
+
+//
+// Function Prototypes
+//
+static Action *
+register_ShowHostDB(Continuation * c, HTTPHdr * h);
+
+void
+HostDBMD5::refresh() {
+  if (host_name) {
+    char const* server_line = dns_server ? dns_server->x_dns_ip_line : 0;
+    make_md5(hash, host_name, host_len, port, server_line, db_mark);
+  } else {
+    // INK_MD5 the ip, pad on both sizes with 0's
+    // so that it does not intersect the string space
+    //
+    uint8_t buff[TS_IP6_SIZE+4];
+    int n = ip.isIp6() ? sizeof(in6_addr) : sizeof(in_addr_t);
+    memset(buff, 0, 2);
+    memcpy(buff+2, ip._addr._byte, n);
+    memset(buff + 2 + n , 0, 2);
+    hash.encodeBuffer(buff, n+4);
+  }
+}
+
+HostDBMD5::HostDBMD5()
+  : host_name(0), host_len(0), port(0),
+    dns_server(0), db_mark(HOSTDB_MARK_GENERIC)
+{
+}
+
+HostDBCache::HostDBCache()
+{
+  tag_bits = HOST_DB_TAG_BITS;
+  max_hits = (1 << HOST_DB_HITS_BITS) - 1;
+  version.ink_major = HOST_DB_CACHE_MAJOR_VERSION;
+  version.ink_minor = HOST_DB_CACHE_MINOR_VERSION;
+}
+
+
+int
+HostDBCache::rebuild_callout(HostDBInfo * e, RebuildMC & r)
+{
+  if (e->round_robin && e->reverse_dns)
+    return corrupt_debugging_callout(e, r);
+  if (e->reverse_dns) {
+    if (e->data.hostname_offset < 0)
+      return 0;
+    if (e->data.hostname_offset > 0) {
+      if (!valid_offset(e->data.hostname_offset - 1))
+        return corrupt_debugging_callout(e, r);
+      char *p = (char *) ptr(&e->data.hostname_offset, r.partition);
+      if (!p)
+        return corrupt_debugging_callout(e, r);
+      char *s = p;
+      while (*p && p - s < MAXDNAME) {
+        if (!valid_heap_pointer(p))
+          return corrupt_debugging_callout(e, r);
+        p++;
+      }
+      if (p - s >= MAXDNAME)
+        return corrupt_debugging_callout(e, r);
+    }
+  }
+  if (e->round_robin) {
+    if (e->app.rr.offset < 0)
+      return 0;
+    if (!valid_offset(e->app.rr.offset - 1))
+      return corrupt_debugging_callout(e, r);
+    HostDBRoundRobin *rr = (HostDBRoundRobin *) ptr(&e->app.rr.offset, r.partition);
+    if (!rr)
+      return corrupt_debugging_callout(e, r);
+    if (rr->rrcount > HOST_DB_MAX_ROUND_ROBIN_INFO || rr->rrcount <= 0 ||
+        rr->good > HOST_DB_MAX_ROUND_ROBIN_INFO || rr->good <= 0 || rr->good > rr->rrcount)
+      return corrupt_debugging_callout(e, r);
+    for (int i = 0; i < rr->good; i++) {
+      if (!valid_heap_pointer(((char *) &rr->info[i + 1]) - 1))
+        return -1;
+      if (!ats_is_ip(rr->info[i].ip()))
+        return corrupt_debugging_callout(e, r);
+      if (rr->info[i].md5_high != e->md5_high ||
+          rr->info[i].md5_low != e->md5_low || rr->info[i].md5_low_low != e->md5_low_low)
+        return corrupt_debugging_callout(e, r);
+    }
+  }
+  if (e->is_ip_timeout())
+    return 0;
+  return 1;
+}
+
+
+HostDBCache *
+HostDBProcessor::cache()
+{
+  return &hostDB;
+}
+
+
+struct HostDBTestRR: public Continuation
+{
+  int fd;
+  char b[512];
+  int nb;
+  int outstanding, success, failure;
+  int in;
+
+  int mainEvent(int event, Event * e)
+  {
+    if (event == EVENT_INTERVAL) {
+      printf("HostDBTestRR: %d outstanding %d succcess %d failure\n", outstanding, success, failure);
+    }
+    if (event == EVENT_HOST_DB_LOOKUP) {
+      --outstanding;
+      if (e)
+        ++success;
+      else
+        ++failure;
+    }
+    if (in)
+      return EVENT_CONT;
+    in = 1;
+    while (outstanding < 40) {
+      if (!nb)
+        goto Lreturn;
+      char *end = (char *)memchr(b, '\n', nb);
+      if (!end)
+        read_some();
+      end = (char *)memchr(b, '\n', nb);
+      if (!end)
+        nb = 0;
+      else {
+        *end = 0;
+        outstanding++;
+        hostDBProcessor.getbyname_re(this, b, 0);
+        nb -= ((end + 1) - b);
+        memcpy(b, end + 1, nb);
+        if (!nb)
+          read_some();
+      }
+    }
+  Lreturn:
+    in = 0;
+    return EVENT_CONT;
+  }
+
+
+  void read_some()
+  {
+    nb = read(fd, b + nb, 512 - nb);
+    ink_release_assert(nb >= 0);
+  }
+
+
+HostDBTestRR():Continuation(new_ProxyMutex()), nb(0), outstanding(0), success(0), failure(0), in(0) {
+    printf("starting HostDBTestRR....\n");
+    fd = open("hostdb_test.config", O_RDONLY, 0);
+    ink_release_assert(fd >= 0);
+    read_some();
+    SET_HANDLER(&HostDBTestRR::mainEvent);
+  }
+};
+
+
+struct HostDBSyncer: public Continuation
+{
+  int frequency;
+  ink_hrtime start_time;
+
+  int sync_event(int event, void *edata);
+  int wait_event(int event, void *edata);
+
+  HostDBSyncer();
+};
+
+
+HostDBSyncer::HostDBSyncer():
+Continuation(new_ProxyMutex()), frequency(0), start_time(0)
+{
+  SET_HANDLER(&HostDBSyncer::sync_event);
+}
+
+
+int
+HostDBSyncer::sync_event(int, void *)
+{
+  SET_HANDLER(&HostDBSyncer::wait_event);
+  start_time = ink_get_hrtime();
+  hostDBProcessor.cache()->sync_partitions(this);
+  return EVENT_DONE;
+}
+
+
+int
+HostDBSyncer::wait_event(int, void *)
+{
+  ink_hrtime next_sync = HRTIME_SECONDS(hostdb_sync_frequency) - (ink_get_hrtime() - start_time);
+
+  SET_HANDLER(&HostDBSyncer::sync_event);
+  if (next_sync > HRTIME_MSECONDS(100))
+    mutex->thread_holding->schedule_in_local(this, next_sync);
+  else
+    mutex->thread_holding->schedule_imm_local(this);
+  return EVENT_DONE;
+}
+
+
+int
+HostDBCache::start(int flags)
+{
+  Store *hostDBStore;
+  Span *hostDBSpan;
+  char storage_path[PATH_NAME_MAX + 1];
+  int storage_size = 33554432; // 32MB default
+
+  bool reconfigure = ((flags & PROCESSOR_RECONFIGURE) ? true : false);
+  bool fix = ((flags & PROCESSOR_FIX) ? true : false);
+
+  storage_path[0] = '\0';
+
+  // Read configuration
+  // Command line overrides manager configuration.
+  //
+  REC_ReadConfigInt32(hostdb_enable, "proxy.config.hostdb");
+  REC_ReadConfigString(hostdb_filename, "proxy.config.hostdb.filename", PATH_NAME_MAX);
+  REC_ReadConfigInt32(hostdb_size, "proxy.config.hostdb.size");
+  REC_ReadConfigInt32(hostdb_srv_enabled, "proxy.config.srv_enabled");
+  REC_ReadConfigString(storage_path, "proxy.config.hostdb.storage_path", PATH_NAME_MAX);
+  REC_ReadConfigInt32(storage_size, "proxy.config.hostdb.storage_size");
+
+  // If proxy.config.hostdb.storage_path is not set, use the local state dir. If it is set to
+  // a relative path, make it relative to the prefix.
+  if (storage_path[0] == '\0') {
+    xptr<char> rundir(RecConfigReadRuntimeDir());
+    ink_strlcpy(storage_path, rundir, sizeof(storage_path));
+  } else if (storage_path[0] != '/') {
+    Layout::relative_to(storage_path, sizeof(storage_path), Layout::get()->prefix, storage_path);
+  }
+
+  Debug("hostdb", "Storage path is %s", storage_path);
+
+  if (access(storage_path, W_OK | R_OK) == -1) {
+    Warning("Unable to access() directory '%s': %d, %s", storage_path, errno, strerror(errno));
+    Warning("Please set 'proxy.config.hostdb.storage_path' or 'proxy.config.local_state_dir'");
+  }
+
+  hostDBStore = new Store;
+  hostDBSpan = new Span;
+  hostDBSpan->init(storage_path, storage_size);
+  hostDBStore->add(hostDBSpan);
+
+  Debug("hostdb", "Opening %s, size=%d", hostdb_filename, hostdb_size);
+  if (open(hostDBStore, "hostdb.config", hostdb_filename, hostdb_size, reconfigure, fix, false /* slient */ ) < 0) {
+    xptr<char> rundir(RecConfigReadRuntimeDir());
+    xptr<char> config(Layout::relative_to(rundir, "hostdb.config"));
+
+    Note("reconfiguring host database");
+
+    if (unlink(config) < 0)
+      Debug("hostdb", "unable to unlink %s", (const char *)config);
+
+    delete hostDBStore;
+    hostDBStore = new Store;
+    hostDBSpan = new Span;
+    hostDBSpan->init(storage_path, storage_size);
+    hostDBStore->add(hostDBSpan);
+
+    if (open(hostDBStore, "hostdb.config", hostdb_filename, hostdb_size, true, fix) < 0) {
+      Warning("could not initialize host database. Host database will be disabled");
+      hostdb_enable = 0;
+      delete hostDBStore;
+      return -1;
+    }
+  }
+  HOSTDB_SET_DYN_COUNT(hostdb_bytes_stat, totalsize);
+  //  XXX I don't see this being reference in the previous function calls, so I am going to delete it -bcall
+  delete hostDBStore;
+  return 0;
+}
+
+
+// Start up the Host Database processor.
+// Load configuration, register configuration and statistics and
+// open the cache. This doesn't create any threads, so those
+// parameters are ignored.
+//
+int
+HostDBProcessor::start(int, size_t)
+{
+  hostDB.alloc_mutexes();
+
+  if (hostDB.start(0) < 0)
+    return -1;
+
+  if (auto_clear_hostdb_flag)
+    hostDB.clear();
+
+  HOSTDB_SET_DYN_COUNT(hostdb_total_entries_stat, hostDB.totalelements);
+
+  statPagesManager.register_http("hostdb", register_ShowHostDB);
+
+  //
+  // Register configuration callback, and establish configuation links
+  //
+  REC_EstablishStaticConfigInt32(hostdb_ttl_mode, "proxy.config.hostdb.ttl_mode");
+  REC_EstablishStaticConfigInt32(hostdb_disable_reverse_lookup, "proxy.config.cache.hostdb.disable_reverse_lookup");
+  REC_EstablishStaticConfigInt32(hostdb_re_dns_on_reload, "proxy.config.hostdb.re_dns_on_reload");
+  REC_EstablishStaticConfigInt32(hostdb_migrate_on_demand, "proxy.config.hostdb.migrate_on_demand");
+  REC_EstablishStaticConfigInt32(hostdb_strict_round_robin, "proxy.config.hostdb.strict_round_robin");
+  REC_EstablishStaticConfigInt32(hostdb_timed_round_robin, "proxy.config.hostdb.timed_round_robin");
+  REC_EstablishStaticConfigInt32(hostdb_cluster, "proxy.config.hostdb.cluster");
+  REC_EstablishStaticConfigInt32(hostdb_cluster_round_robin, "proxy.config.hostdb.cluster.round_robin");
+  REC_EstablishStaticConfigInt32(hostdb_lookup_timeout, "proxy.config.hostdb.lookup_timeout");
+  REC_EstablishStaticConfigInt32U(hostdb_ip_timeout_interval, "proxy.config.hostdb.timeout");
+  REC_EstablishStaticConfigInt32U(hostdb_ip_stale_interval, "proxy.config.hostdb.verify_after");
+  REC_EstablishStaticConfigInt32U(hostdb_ip_fail_timeout_interval, "proxy.config.hostdb.fail.timeout");
+  REC_EstablishStaticConfigInt32U(hostdb_serve_stale_but_revalidate, "proxy.config.hostdb.serve_stale_for");
+  REC_EstablishStaticConfigInt32(hostdb_sync_frequency, "proxy.config.cache.hostdb.sync_frequency");
+
+  //
+  // Set up hostdb_current_interval
+  //
+  hostdb_current_interval = (unsigned int)(ink_get_based_hrtime() / HOST_DB_TIMEOUT_INTERVAL);
+
+  HostDBContinuation *b = hostDBContAllocator.alloc();
+  SET_CONTINUATION_HANDLER(b, (HostDBContHandler) & HostDBContinuation::backgroundEvent);
+  b->mutex = new_ProxyMutex();
+  eventProcessor.schedule_every(b, HOST_DB_TIMEOUT_INTERVAL, ET_DNS);
+
+  //
+  // Sync HostDB, if we've asked for it.
+  //
+  if (hostdb_sync_frequency > 0)
+    eventProcessor.schedule_imm(new HostDBSyncer);
+  return 0;
+}
+
+
+void
+HostDBContinuation::init(HostDBMD5 const& the_md5, Options const& opt)
+{
+  md5 = the_md5;
+  if (md5.host_name) {
+    // copy to backing store.
+    if (md5.host_len > static_cast<int>(sizeof(md5_host_name_store)-1))
+      md5.host_len = sizeof(md5_host_name_store)-1;
+    memcpy(md5_host_name_store, md5.host_name, md5.host_len);
+  } else {
+    md5.host_len = 0;
+  }
+  md5_host_name_store[md5.host_len] = 0;
+  md5.host_name = md5_host_name_store;
+
+  host_res_style = opt.host_res_style;
+  dns_lookup_timeout = opt.timeout;
+  mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+  if (opt.cont) {
+    action = opt.cont;
+  } else {
+    //ink_assert(!"this sucks");
+    action.mutex = mutex;
+  }
+}
+
+void
+HostDBContinuation::refresh_MD5() {
+  ProxyMutex* old_bucket_mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+  // We're not pending DNS anymore.
+  remove_trigger_pending_dns();
+  md5.refresh();
+  // Update the mutex if it's from the bucket.
+  // Some call sites modify this after calling @c init so need to check.
+  if (old_bucket_mutex == mutex)
+    mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+}
+
+void
+make_md5(INK_MD5 & md5, const char *hostname, int len, int port, char const* pDNSServers, HostDBMark mark)
+{
+  INK_DIGEST_CTX ctx;
+  ink_code_incr_md5_init(&ctx);
+  ink_code_incr_md5_update(&ctx, hostname, len);
+  unsigned short p = port;
+  p = htons(p);
+  ink_code_incr_md5_update(&ctx, (char *) &p, 2);
+  uint8_t m = static_cast<uint8_t>(mark);
+  ink_code_incr_md5_update(&ctx, (char *) &m, sizeof(m));     /* FIXME: check this */
+  if (pDNSServers)
+    ink_code_incr_md5_update(&ctx, pDNSServers, strlen(pDNSServers));
+  ink_code_incr_md5_final((char *) &md5, &ctx);
+}
+
+static bool
+reply_to_cont(Continuation * cont, HostDBInfo * ar, bool is_srv = false)
+{
+  const char *reason = "none";
+  HostDBInfo *r = ar;
+
+  if (r == NULL || r->is_srv != is_srv || r->failed()) {
+    cont->handleEvent(is_srv ? EVENT_SRV_LOOKUP : EVENT_HOST_DB_LOOKUP, NULL);
+    return false;
+  }
+
+  {
+    if (r->reverse_dns) {
+      if (!r->hostname()) {
+        reason = "missing hostname";
+        ink_assert(!"missing hostname");
+        goto Lerror;
+      }
+      Debug("hostdb", "hostname = %s", r->hostname());
+    }
+
+    if (!r->is_srv && r->round_robin) {
+      if (!r->rr()) {
+        reason = "missing round-robin";
+        ink_assert(!"missing round-robin");
+        goto Lerror;
+      }
+      ip_text_buffer ipb;
+      Debug("hostdb", "RR of %d with %d good, 1st IP = %s", r->rr()->rrcount, r->rr()->good, ats_ip_ntop(r->ip(), ipb, sizeof ipb));
+    }
+
+    cont->handleEvent(is_srv ? EVENT_SRV_LOOKUP : EVENT_HOST_DB_LOOKUP, r);
+
+    if (!r->full)
+      goto Ldelete;
+    return true;
+  }
+Lerror:
+  cont->handleEvent(is_srv ? EVENT_SRV_LOOKUP : EVENT_HOST_DB_LOOKUP, NULL);
+Ldelete:
+  Warning("bogus entry deleted from HostDB: %s", reason);
+  hostDB.delete_block(ar);
+  return false;
+}
+
+inline HostResStyle
+host_res_style_for(sockaddr const* ip) {
+  return ats_is_ip6(ip) ? HOST_RES_IPV6_ONLY : HOST_RES_IPV4_ONLY;
+}
+
+inline HostResStyle
+host_res_style_for(HostDBMark mark) {
+  return HOSTDB_MARK_IPV4 == mark ? HOST_RES_IPV4_ONLY
+    : HOSTDB_MARK_IPV6 == mark ? HOST_RES_IPV6_ONLY
+    : HOST_RES_NONE
+    ;
+}
+
+inline HostDBMark
+db_mark_for(HostResStyle style) {
+  HostDBMark zret = HOSTDB_MARK_GENERIC;
+  if (HOST_RES_IPV4 == style || HOST_RES_IPV4_ONLY == style)
+    zret = HOSTDB_MARK_IPV4;
+  else if (HOST_RES_IPV6 == style || HOST_RES_IPV6_ONLY == style)
+    zret = HOSTDB_MARK_IPV6;
+  return zret;
+}
+
+inline HostDBMark
+db_mark_for(sockaddr const* ip) {
+  return ats_is_ip6(ip) ? HOSTDB_MARK_IPV6 : HOSTDB_MARK_IPV4;
+}
+
+HostDBInfo *
+probe(ProxyMutex *mutex, HostDBMD5 const& md5, bool ignore_timeout)
+{
+  ink_assert(this_ethread() == hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets))->thread_holding);
+  if (hostdb_enable) {
+    uint64_t folded_md5 = fold_md5(md5.hash);
+    HostDBInfo *r = hostDB.lookup_block(folded_md5, hostDB.levels);
+    Debug("hostdb", "probe %.*s %" PRIx64 " %d [ignore_timeout = %d]",
+          md5.host_len, md5.host_name, folded_md5, !!r, ignore_timeout);
+    if (r && md5.hash[1] == r->md5_high) {
+
+      // Check for timeout (fail probe)
+      //
+      if (r->is_deleted()) {
+        Debug("hostdb", "HostDB entry was set as deleted");
+        return NULL;
+      } else if (r->failed()) {
+        Debug("hostdb", "'%.*s' failed", md5.host_len, md5.host_name);
+        if (r->is_ip_fail_timeout()) {
+          Debug("hostdb", "fail timeout %u", r->ip_interval());
+          return NULL;
+        }
+      } else if (!ignore_timeout && r->is_ip_timeout() && !r->serve_stale_but_revalidate()) {
+        Debug("hostdb", "timeout %u %u %u", r->ip_interval(), r->ip_timestamp, r->ip_timeout_interval);
+        HOSTDB_INCREMENT_DYN_STAT(hostdb_ttl_expires_stat);
+        return NULL;
+      }
+//error conditions
+      if (r->reverse_dns && !r->hostname()) {
+        Debug("hostdb", "missing reverse dns");
+        hostDB.delete_block(r);
+        return NULL;
+      }
+      if (r->round_robin && !r->rr()) {
+        Debug("hostdb", "missing round-robin");
+        hostDB.delete_block(r);
+        return NULL;
+      }
+      // Check for stale (revalidate offline if we are the owner)
+      // -or-
+      // we are beyond our TTL but we choose to serve for another N seconds [hostdb_serve_stale_but_revalidate seconds]
+      if ((!ignore_timeout && r->is_ip_stale()
+           && !cluster_machine_at_depth(master_hash(md5.hash))
+           && !r->reverse_dns) || (r->is_ip_timeout() && r->serve_stale_but_revalidate())) {
+        Debug("hostdb", "stale %u %u %u, using it and refreshing it", r->ip_interval(),
+              r->ip_timestamp, r->ip_timeout_interval);
+        r->refresh_ip();
+        if (!is_dotted_form_hostname(md5.host_name)) {
+          HostDBContinuation *c = hostDBContAllocator.alloc();
+          HostDBContinuation::Options copt;
+          copt.host_res_style = host_res_style_for(r->ip());
+          c->init(md5, copt);
+          c->do_dns();
+        }
+      }
+
+      r->hits++;
+      if (!r->hits)
+        r->hits--;
+      return r;
+    }
+  }
+  return NULL;
+}
+
+
+//
+// Insert a HostDBInfo into the database
+// A null value indicates that the block is empty.
+//
+HostDBInfo *
+HostDBContinuation::insert(unsigned int attl)
+{
+  uint64_t folded_md5 = fold_md5(md5.hash);
+  int bucket = folded_md5 % hostDB.buckets;
+
+  ink_assert(this_ethread() == hostDB.lock_for_bucket(bucket)->thread_holding);
+  // remove the old one to prevent buildup
+  HostDBInfo *old_r = hostDB.lookup_block(folded_md5, 3);
+  if (old_r)
+    hostDB.delete_block(old_r);
+  HostDBInfo *r = hostDB.insert_block(folded_md5, NULL, 0);
+  r->md5_high = md5.hash[1];
+  if (attl > HOST_DB_MAX_TTL)
+    attl = HOST_DB_MAX_TTL;
+  r->ip_timeout_interval = attl;
+  r->ip_timestamp = hostdb_current_interval;
+  Debug("hostdb", "inserting for: %.*s: (md5: %" PRIx64 ") bucket: %d now: %u timeout: %u ttl: %u", md5.host_len, md5.host_name, folded_md5, bucket, r->ip_timestamp,
+        r->ip_timeout_interval, attl);
+  return r;
+}
+
+
+//
+// Get an entry by either name or IP
+//
+Action *
+HostDBProcessor::getby(Continuation * cont,
+                       const char *hostname, int len, sockaddr const* ip, bool aforce_dns, HostResStyle host_res_style, int dns_lookup_timeout)
+{
+  HostDBMD5 md5;
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  ip_text_buffer ipb;
+
+  HOSTDB_INCREMENT_DYN_STAT(hostdb_total_lookups_stat);
+
+  if ((!hostdb_enable || (hostname && !*hostname)) || (hostdb_disable_reverse_lookup && ip)) {
+    MUTEX_TRY_LOCK(lock, cont->mutex, thread);
+    if (!lock)
+      goto Lretry;
+    cont->handleEvent(EVENT_HOST_DB_LOOKUP, NULL);
+    return ACTION_RESULT_DONE;
+  }
+
+  // Load the MD5 data.
+  md5.host_name = hostname;
+  md5.host_len = hostname ? (len ? len : strlen(hostname)) : 0;
+  md5.ip.assign(ip);
+  md5.port = ip ? ats_ip_port_host_order(ip) : 0;
+  md5.db_mark = db_mark_for(host_res_style);
+#ifdef SPLIT_DNS
+  if (hostname && SplitDNSConfig::isSplitDNSEnabled()) {
+    const char *scan = hostname;
+    // Is this a check for IPv4 address? Add check for IPv6?
+    for (; *scan != '\0' && (ParseRules::is_digit(*scan) || '.' == *scan); scan++);
+    if ('\0' != *scan) {
+      SplitDNS* pSD = SplitDNSConfig::acquire();
+      if (0 != pSD)
+        md5.dns_server = static_cast<DNSServer*>(pSD->getDNSRecord(hostname));
+      SplitDNSConfig::release(pSD);
+    }
+  }
+#endif // SPLIT_DNS
+  md5.refresh();
+
+  // Attempt to find the result in-line, for level 1 hits
+  //
+  if (!aforce_dns) {
+    bool loop;
+    do {
+      loop = false; // Only loop on explicit set for retry.
+      // find the partition lock
+      //
+      // TODO: Could we reuse the "mutex" above safely? I think so but not sure.
+      ProxyMutex *bmutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+      MUTEX_TRY_LOCK(lock, bmutex, thread);
+      MUTEX_TRY_LOCK(lock2, cont->mutex, thread);
+
+      if (lock && lock2) {
+        // If we can get the lock and a level 1 probe succeeds, return
+        HostDBInfo *r = probe(bmutex, md5, aforce_dns);
+        if (r) {
+          if (r->failed() && hostname)
+            loop = check_for_retry(md5.db_mark, host_res_style);
+          if (!loop) {
+            // No retry -> final result. Return it.
+            Debug("hostdb", "immediate answer for %s",
+                  hostname ? hostname
+                  : ats_is_ip(ip) ? ats_ip_ntop(ip, ipb, sizeof ipb)
+                  : "<null>"
+              );
+            HOSTDB_INCREMENT_DYN_STAT(hostdb_total_hits_stat);
+            reply_to_cont(cont, r);
+            return ACTION_RESULT_DONE;
+          }
+          md5.refresh();
+        }
+      }
+    } while (loop);
+  }
+  Debug("hostdb", "delaying force %d answer for %s", aforce_dns,
+    hostname ? hostname
+    : ats_is_ip(ip) ? ats_ip_ntop(ip, ipb, sizeof ipb)
+    : "<null>"
+  );
+
+Lretry:
+  // Otherwise, create a continuation to do a deeper probe in the background
+  //
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  HostDBContinuation::Options opt;
+  opt.timeout = dns_lookup_timeout;
+  opt.force_dns = aforce_dns;
+  opt.cont = cont;
+  opt.host_res_style = host_res_style;
+  c->init(md5, opt);
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::probeEvent);
+
+  // Since ProxyMutexPtr has a cast operator, gcc-3.x get upset
+  // about ambiguity when doing this comparison, so by reversing
+  // the operands, I force it to pick the cast operation /leif.
+  if (thread->mutex == cont->mutex) {
+    thread->schedule_in(c, MUTEX_RETRY_DELAY);
+  } else {
+    dnsProcessor.thread->schedule_imm(c);
+  }
+
+  return &c->action;
+}
+
+
+// Wrapper from getbyname to getby
+//
+Action *
+HostDBProcessor::getbyname_re(Continuation * cont, const char *ahostname, int len, Options const& opt)
+{
+  bool force_dns = false;
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  if (opt.flags & HOSTDB_FORCE_DNS_ALWAYS)
+    force_dns = true;
+  else if (opt.flags & HOSTDB_FORCE_DNS_RELOAD) {
+    force_dns = (hostdb_re_dns_on_reload ? true : false);
+    if (force_dns)
+      HOSTDB_INCREMENT_DYN_STAT(hostdb_re_dns_on_reload_stat);
+  }
+  return getby(cont, ahostname, len, 0, force_dns, opt.host_res_style, opt.timeout);
+}
+
+
+/* Support SRV records */
+Action *
+HostDBProcessor::getSRVbyname_imm(Continuation * cont, process_srv_info_pfn process_srv_info,
+                                  const char *hostname, int len, Options const& opt)
+{
+  ink_assert(cont->mutex->thread_holding == this_ethread());
+  bool force_dns = false;
+  EThread *thread = cont->mutex->thread_holding;
+  ProxyMutex *mutex = thread->mutex;
+
+  if (opt.flags & HOSTDB_FORCE_DNS_ALWAYS)
+    force_dns = true;
+  else if (opt.flags & HOSTDB_FORCE_DNS_RELOAD) {
+    force_dns = (hostdb_re_dns_on_reload ? true : false);
+    if (force_dns)
+      HOSTDB_INCREMENT_DYN_STAT(hostdb_re_dns_on_reload_stat);
+  }
+
+  HostDBMD5 md5;
+
+  HOSTDB_INCREMENT_DYN_STAT(hostdb_total_lookups_stat);
+
+  if (!hostdb_enable || !*hostname) {
+    (cont->*process_srv_info) (NULL);
+    return ACTION_RESULT_DONE;
+  }
+
+  md5.host_name = hostname;
+  md5.host_len = hostname ? (len ? len : strlen(hostname)) : 0;
+  md5.port = 0;
+  md5.db_mark = HOSTDB_MARK_SRV;
+  md5.refresh();
+
+  // Attempt to find the result in-line, for level 1 hits
+  if (!force_dns) {
+    // find the partition lock
+    ProxyMutex *bucket_mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+    MUTEX_TRY_LOCK(lock, bucket_mutex, thread);
+
+    // If we can get the lock and a level 1 probe succeeds, return
+    if (lock) {
+      HostDBInfo *r = probe(bucket_mutex, md5, false);
+      if (r) {
+        Debug("hostdb", "immediate SRV answer for %s from hostdb", hostname);
+        Debug("dns_srv", "immediate SRV answer for %s from hostdb", hostname);
+        HOSTDB_INCREMENT_DYN_STAT(hostdb_total_hits_stat);
+        (cont->*process_srv_info) (r);
+        return ACTION_RESULT_DONE;
+      }
+    }
+  }
+
+  Debug("dns_srv", "delaying (force=%d) SRV answer for %.*s [timeout = %d]", force_dns, md5.host_len, md5.host_name, opt.timeout);
+
+  // Otherwise, create a continuation to do a deeper probe in the background
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  HostDBContinuation::Options copt;
+  copt.timeout = opt.timeout;
+  copt.cont = cont;
+  copt.force_dns = force_dns;
+  c->init(md5, copt);
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::probeEvent);
+
+  if (thread->mutex == cont->mutex) {
+    thread->schedule_in(c, MUTEX_RETRY_DELAY);
+  } else {
+    dnsProcessor.thread->schedule_imm(c);
+  }
+
+  return &c->action;
+}
+
+
+// Wrapper from getbyname to getby
+//
+Action *
+HostDBProcessor::getbyname_imm(Continuation * cont, process_hostdb_info_pfn process_hostdb_info,
+                               const char *hostname, int len, Options const& opt)
+{
+  ink_assert(cont->mutex->thread_holding == this_ethread());
+  bool force_dns = false;
+  EThread *thread = cont->mutex->thread_holding;
+  ProxyMutex *mutex = thread->mutex;
+  HostDBMD5 md5;
+
+  if (opt.flags & HOSTDB_FORCE_DNS_ALWAYS)
+    force_dns = true;
+  else if (opt.flags & HOSTDB_FORCE_DNS_RELOAD) {
+    force_dns = (hostdb_re_dns_on_reload ? true : false);
+    if (force_dns)
+      HOSTDB_INCREMENT_DYN_STAT(hostdb_re_dns_on_reload_stat);
+  }
+
+  HOSTDB_INCREMENT_DYN_STAT(hostdb_total_lookups_stat);
+
+  if (!hostdb_enable || !*hostname) {
+    (cont->*process_hostdb_info) (NULL);
+    return ACTION_RESULT_DONE;
+  }
+
+  md5.host_name = hostname;
+  md5.host_len = hostname ? (len ? len : strlen(hostname)) : 0;
+  md5.port = opt.port;
+  md5.db_mark = db_mark_for(opt.host_res_style);
+#ifdef SPLIT_DNS
+  if (SplitDNSConfig::isSplitDNSEnabled()) {
+    const char *scan = hostname;
+    for (; *scan != '\0' && (ParseRules::is_digit(*scan) || '.' == *scan); scan++);
+    if ('\0' != *scan) {
+      SplitDNS* pSD = SplitDNSConfig::acquire();
+      if (0 != pSD)
+        md5.dns_server = static_cast<DNSServer*>(pSD->getDNSRecord(md5.host_name));
+      SplitDNSConfig::release(pSD);
+    }
+  }
+#endif // SPLIT_DNS
+  md5.refresh();
+
+  // Attempt to find the result in-line, for level 1 hits
+  if (!force_dns) {
+    bool loop;
+    do {
+      loop = false; // loop only on explicit set for retry
+      // find the partition lock
+      ProxyMutex *bucket_mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+      MUTEX_LOCK(lock, bucket_mutex, thread);
+
+      if (lock) {
+        // If we can get the lock do a level 1 probe for immediate result.
+        HostDBInfo *r = probe(bucket_mutex, md5, false);
+        if (r) {
+          if (r->failed()) // fail, see if we should retry with alternate
+            loop = check_for_retry(md5.db_mark, opt.host_res_style);
+          if (!loop) {
+            // No retry -> final result. Return it.
+            Debug("hostdb", "immediate answer for %.*s", md5.host_len, md5.host_name);
+            HOSTDB_INCREMENT_DYN_STAT(hostdb_total_hits_stat);
+            (cont->*process_hostdb_info) (r);
+            return ACTION_RESULT_DONE;
+          }
+          md5.refresh(); // Update for retry.
+        }
+      }
+    } while (loop);
+  }
+
+  Debug("hostdb", "delaying force %d answer for %.*s [timeout %d]", force_dns, md5.host_len, md5.host_name, opt.timeout);
+
+  // Otherwise, create a continuation to do a deeper probe in the background
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  HostDBContinuation::Options copt;
+  copt.cont = cont;
+  copt.force_dns = force_dns;
+  copt.timeout = opt.timeout;
+  copt.host_res_style = opt.host_res_style;
+  c->init(md5, copt);
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::probeEvent);
+
+  thread->schedule_in(c, HOST_DB_RETRY_PERIOD);
+
+  return &c->action;
+}
+
+
+static void
+do_setby(HostDBInfo * r, HostDBApplicationInfo * app, const char *hostname, IpAddr const& ip, bool is_srv = false)
+{
+  HostDBRoundRobin *rr = r->rr();
+
+  if (is_srv && (!r->is_srv || !rr))
+    return;
+
+  if (rr) {
+    if (is_srv) {
+      uint32_t key = makeHostHash(hostname);
+      for (int i = 0; i < rr->rrcount; i++) {
+        if (key == rr->info[i].data.srv.key && !strcmp(hostname, rr->info[i].srvname(rr))) {
+          Debug("hostdb", "immediate setby for %s", hostname);
+          rr->info[i].app.allotment.application1 = app->allotment.application1;
+          rr->info[i].app.allotment.application2 = app->allotment.application2;
+          return;
+        }
+      }
+    } else
+      for (int i = 0; i < rr->rrcount; i++) {
+        if (rr->info[i].ip() == ip) {
+          Debug("hostdb", "immediate setby for %s", hostname ? hostname : "<addr>");
+          rr->info[i].app.allotment.application1 = app->allotment.application1;
+          rr->info[i].app.allotment.application2 = app->allotment.application2;
+          return;
+        }
+      }
+  } else {
+    if (r->reverse_dns || (!r->round_robin && ip == r->ip())) {
+      Debug("hostdb", "immediate setby for %s", hostname ? hostname : "<addr>");
+      r->app.allotment.application1 = app->allotment.application1;
+      r->app.allotment.application2 = app->allotment.application2;
+    }
+  }
+}
+
+
+void
+HostDBProcessor::setby(const char *hostname, int len, sockaddr const* ip, HostDBApplicationInfo * app)
+{
+  if (!hostdb_enable)
+    return;
+
+  HostDBMD5 md5;
+  md5.host_name = hostname;
+  md5.host_len = hostname ? (len ? len : strlen(hostname)) : 0;
+  md5.ip.assign(ip);
+  md5.port = ip ? ats_ip_port_host_order(ip) : 0;
+  md5.db_mark = db_mark_for(ip);
+  md5.refresh();
+
+  // Attempt to find the result in-line, for level 1 hits
+
+  ProxyMutex *mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+  EThread *thread = this_ethread();
+  MUTEX_TRY_LOCK(lock, mutex, thread);
+
+  if (lock) {
+    HostDBInfo *r = probe(mutex, md5, false);
+    if (r)
+      do_setby(r, app, hostname, md5.ip);
+    return;
+  }
+  // Create a continuation to do a deaper probe in the background
+
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  c->init(md5);
+  c->app.allotment.application1 = app->allotment.application1;
+  c->app.allotment.application2 = app->allotment.application2;
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::setbyEvent);
+  thread->schedule_in(c, MUTEX_RETRY_DELAY);
+}
+
+void
+HostDBProcessor::setby_srv(const char *hostname, int len, const char *target, HostDBApplicationInfo * app)
+{
+  if (!hostdb_enable || !hostname || !target)
+      return;
+
+  HostDBMD5 md5;
+  md5.host_name = hostname;
+  md5.host_len = len ? len : strlen(hostname);
+  md5.port = 0;
+  md5.db_mark = HOSTDB_MARK_SRV;
+  md5.refresh();
+
+  // Create a continuation to do a deaper probe in the background
+
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  c->init(md5);
+  strncpy(c->srv_target_name, target, MAXDNAME);
+  c->app.allotment.application1 = app->allotment.application1;
+  c->app.allotment.application2 = app->allotment.application2;
+  SET_CONTINUATION_HANDLER(c,
+      (HostDBContHandler) & HostDBContinuation::setbyEvent);
+  eventProcessor.schedule_imm(c);
+}
+int
+HostDBContinuation::setbyEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  HostDBInfo *r = probe(mutex, md5, false);
+
+  if (r)
+    do_setby(r, &app, md5.host_name, md5.ip, is_srv());
+
+  hostdb_cont_free(this);
+  return EVENT_DONE;
+}
+
+
+static int
+remove_round_robin(HostDBInfo * r, const char *hostname, IpAddr const& ip)
+{
+  if (r) {
+    if (!r->round_robin)
+      return false;
+    HostDBRoundRobin *rr = r->rr();
+    if (!rr)
+      return false;
+    for (int i = 0; i < rr->good; i++) {
+      if (ip == rr->info[i].ip()) {
+        ip_text_buffer b;
+        Debug("hostdb", "Deleting %s from '%s' round robin DNS entry", ip.toString(b, sizeof b), hostname);
+        HostDBInfo tmp = rr->info[i];
+        rr->info[i] = rr->info[rr->good - 1];
+        rr->info[rr->good - 1] = tmp;
+        rr->good--;
+        if (rr->good <= 0) {
+          hostDB.delete_block(r);
+          return false;
+        } else {
+          if (diags->on("hostdb")) {
+            int bufsize = rr->good * INET6_ADDRSTRLEN;
+            char *rr_ip_list = (char *) alloca(bufsize);
+            char *p = rr_ip_list;
+            for (int n = 0; n < rr->good; ++n) {
+              ats_ip_ntop(rr->info[n].ip(), p, bufsize);
+              int nbytes = strlen(p);
+              p += nbytes;
+              bufsize -= nbytes;
+            }
+            Note("'%s' round robin DNS entry updated, entries=%d, IP list: %s", hostname, rr->good, rr_ip_list);
+          }
+        }
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+# if 0
+Action *
+HostDBProcessor::failed_connect_on_ip_for_name(Continuation * cont, sockaddr const* ip, const char *hostname, int len)
+{
+  HostDBMD5 md5;
+  md5.host_name = hostname;
+  md5.host_len = hostname ? (len ? len : strlen(hostname)) : 0;
+  md5.ip.assign(ip);
+  md5.port = ip ? ats_ip_port_host_order(ip) : 0;
+  md5.db_mark = db_mark_for(ip);
+#ifdef SPLIT_DNS
+  SplitDNS *pSD = 0;
+  if (hostname && SplitDNSConfig::isSplitDNSEnabled()) {
+    pSD = SplitDNSConfig::acquire();
+
+    if (0 != pSD)
+      md5.dns_server = static_cast<DNSServer*>(pSD->getDNSRecord(hostname));
+    SplitDNSConfig::release(pSD);
+  }
+#endif // SPLIT_DNS
+  md5.refresh();
+
+  ProxyMutex *mutex = hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets));
+  EThread *thread = this_ethread();
+  MUTEX_TRY_LOCK(lock, mutex, thread);
+  if (lock) {
+    if (!hostdb_enable || NULL == md5.dns_server) {
+      if (cont)
+        cont->handleEvent(EVENT_HOST_DB_IP_REMOVED, (void *) NULL);
+      return ACTION_RESULT_DONE;
+    }
+    HostDBInfo *r = probe(mutex, md5, false);
+    bool res = (remove_round_robin(r, hostname, ip) ? true : false);
+    if (cont)
+      cont->handleEvent(EVENT_HOST_DB_IP_REMOVED, res ? (void *) ip : (void *) NULL);
+    return ACTION_RESULT_DONE;
+  }
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  HostDBContinuation::Options copt;
+  copt.cont = cont;
+  c->init(md5, copt);
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::removeEvent);
+  thread->schedule_in(c, MUTEX_RETRY_DELAY);
+  return &c->action;
+}
+#endif
+
+int
+HostDBContinuation::removeEvent(int /* event ATS_UNUSED */, Event * e)
+{
+  Continuation *cont = action.continuation;
+
+  MUTEX_TRY_LOCK(lock, cont ? (ProxyMutex *) cont->mutex : (ProxyMutex *) NULL, e->ethread);
+  if (!lock) {
+    e->schedule_in(HOST_DB_RETRY_PERIOD);
+    return EVENT_CONT;
+  }
+  if (!action.cancelled) {
+    if (!hostdb_enable) {
+      if (cont)
+        cont->handleEvent(EVENT_HOST_DB_IP_REMOVED, (void *) NULL);
+    } else {
+      HostDBInfo *r = probe(mutex, md5, false);
+      bool res = (remove_round_robin(r, md5.host_name, md5.ip) ? true : false);
+      if (cont)
+        cont->handleEvent(
+          EVENT_HOST_DB_IP_REMOVED,
+          res ? static_cast<void *>(&md5.ip) : static_cast<void *>(NULL)
+        );
+    }
+  }
+  hostdb_cont_free(this);
+  return EVENT_DONE;
+}
+
+
+// Lookup done, insert into the local table, return data to the
+// calling continuation or to the calling cluster node.
+//
+HostDBInfo *
+HostDBContinuation::lookup_done(IpAddr const& ip, char const* aname, bool around_robin, unsigned int ttl_seconds, SRVHosts * srv)
+{
+  HostDBInfo *i = NULL;
+
+  ink_assert(this_ethread() == hostDB.lock_for_bucket((int) (fold_md5(md5.hash) % hostDB.buckets))->thread_holding);
+  if (!ip.isValid() || !aname || !aname[0]) {
+    if (is_byname()) {
+      Debug("hostdb", "lookup_done() failed for '%.*s'", md5.host_len, md5.host_name);
+    } else if (is_srv()) {
+      Debug("dns_srv", "SRV failed for '%.*s'", md5.host_len, md5.host_name);
+    } else {
+      ip_text_buffer b;
+      Debug("hostdb", "failed for %s", md5.ip.toString(b, sizeof b));
+    }
+    i = insert(hostdb_ip_fail_timeout_interval);        // currently ... 0
+    i->round_robin = false;
+    i->is_srv = is_srv();
+    i->reverse_dns = !is_byname() && !is_srv();
+
+    i->set_failed();
+  } else {
+    switch (hostdb_ttl_mode) {
+    default:
+      ink_assert(!"bad TTL mode");
+    case TTL_OBEY:
+      break;
+    case TTL_IGNORE:
+      ttl_seconds = hostdb_ip_timeout_interval * 60;
+      break;
+    case TTL_MIN:
+      if (hostdb_ip_timeout_interval * 60 < ttl_seconds)
+        ttl_seconds = hostdb_ip_timeout_interval * 60;
+      break;
+    case TTL_MAX:
+      if (hostdb_ip_timeout_interval * 60 > ttl_seconds)
+        ttl_seconds = hostdb_ip_timeout_interval * 60;
+      break;
+    }
+    HOSTDB_SUM_DYN_STAT(hostdb_ttl_stat, ttl_seconds);
+    if (!ttl_seconds)
+      ttl_seconds = 1;          // www.barnsandnobel.com is lame
+    i = insert(ttl_seconds);
+    if (is_byname()) {
+      ip_text_buffer b;
+      Debug("hostdb", "done %s TTL %d", ip.toString(b, sizeof b), ttl_seconds);
+      ats_ip_set(i->ip(), ip);
+      i->round_robin = around_robin;
+      i->reverse_dns = false;
+      if (md5.host_name != aname) {
+        ink_strlcpy(md5_host_name_store, aname, sizeof(md5_host_name_store));
+      }
+      i->is_srv = false;
+    } else if (is_srv()) {
+      ink_assert(srv && srv->srv_host_count > 0 && srv->srv_host_count <= 16 && around_robin);
+
+      i->data.srv.srv_offset = srv->srv_host_count;
+      i->reverse_dns = false;
+      i->is_srv = true;
+      i->round_robin = around_robin;
+
+      if (md5.host_name != aname) {
+        ink_strlcpy(md5_host_name_store, aname, sizeof(md5_host_name_store));
+      }
+
+    } else {
+      Debug("hostdb", "done '%s' TTL %d", aname, ttl_seconds);
+      const size_t s_size = strlen(aname) + 1;
+      void *s = hostDB.alloc(&i->data.hostname_offset, s_size);
+      if (s) {
+        ink_strlcpy((char *) s, aname, s_size);
+        i->round_robin = false;
+        i->reverse_dns = true;
+        i->is_srv = false;
+      } else {
+        ink_assert(!"out of room in hostdb data area");
+        Warning("out of room in hostdb for reverse DNS data");
+        hostDB.delete_block(i);
+        return NULL;
+      }
+    }
+  }
+  if (from_cont)
+    do_put_response(from, i, from_cont);
+  ink_assert(!i->round_robin || !i->reverse_dns);
+  return i;
+}
+
+
+int
+HostDBContinuation::dnsPendingEvent(int event, Event * e)
+{
+  ink_assert(this_ethread() == hostDB.lock_for_bucket(fold_md5(md5.hash) % hostDB.buckets)->thread_holding);
+  if (timeout) {
+    timeout->cancel(this);
+    timeout = NULL;
+  }
+  if (event == EVENT_INTERVAL) {
+    // we timed out, return a failure to the user
+    MUTEX_TRY_LOCK_FOR(lock, action.mutex, ((Event *) e)->ethread, action.continuation);
+    if (!lock) {
+      timeout = eventProcessor.schedule_in(this, HOST_DB_RETRY_PERIOD);
+      return EVENT_CONT;
+    }
+    if (!action.cancelled && action.continuation)
+      action.continuation->handleEvent(EVENT_HOST_DB_LOOKUP, NULL);
+    hostDB.pending_dns_for_hash(md5.hash).remove(this);
+    hostdb_cont_free(this);
+    return EVENT_DONE;
+  } else {
+    SET_HANDLER((HostDBContHandler) & HostDBContinuation::probeEvent);
+    return probeEvent(EVENT_INTERVAL, NULL);
+  }
+}
+
+static int
+restore_info(HostDBInfo * r, HostDBInfo * old_r, HostDBInfo & old_info, HostDBRoundRobin * old_rr_data)
+{
+  if (old_rr_data) {
+    for (int j = 0; j < old_rr_data->rrcount; j++)
+      if (ats_ip_addr_eq(old_rr_data->info[j].ip(), r->ip())) {
+        r->app = old_rr_data->info[j].app;
+        return true;
+      }
+  } else if (old_r)
+    if (ats_ip_addr_eq(old_info.ip(), r->ip())) {
+      r->app = old_info.app;
+      return true;
+    }
+  return false;
+}
+
+
+// DNS lookup result state
+//
+int
+HostDBContinuation::dnsEvent(int event, HostEnt * e)
+{
+  ink_assert(this_ethread() == hostDB.lock_for_bucket(fold_md5(md5.hash) % hostDB.buckets)->thread_holding);
+  if (timeout) {
+    timeout->cancel(this);
+    timeout = NULL;
+  }
+  EThread *thread = mutex->thread_holding;
+  if (event == EVENT_INTERVAL) {
+    if (!action.continuation) {
+      // give up on insert, it has been too long
+      remove_trigger_pending_dns();
+      hostdb_cont_free(this);
+      return EVENT_DONE;
+    }
+    MUTEX_TRY_LOCK_FOR(lock, action.mutex, thread, action.continuation);
+    if (!lock) {
+      timeout = thread->schedule_in(this, HOST_DB_RETRY_PERIOD);
+      return EVENT_CONT;
+    }
+    // [amc] Callback to client to indicate a failure due to timeout.
+    // We don't try a different family here because a timeout indicates
+    // a server issue that won't be fixed by asking for a different
+    // address family.
+    if (!action.cancelled && action.continuation)
+      action.continuation->handleEvent(EVENT_HOST_DB_LOOKUP, NULL);
+    action = NULL;
+    // do not exit yet, wait to see if we can insert into DB
+    timeout = thread->schedule_in(this, HRTIME_SECONDS(hostdb_insert_timeout));
+    return EVENT_DONE;
+  } else {
+    bool failed = !e;
+
+    bool rr = false;
+    pending_action = NULL;
+
+    if (is_srv()) {
+      rr = !failed && (e->srv_hosts.srv_host_count > 0);
+    } else if (!failed) {
+      rr = 0 != e->ent.h_addr_list[1];
+    } else {
+    }
+
+    ttl = failed ? 0 : e->ttl / 60;
+    int ttl_seconds = failed ? 0 : e->ttl; //ebalsa: moving to second accuracy
+
+    HostDBInfo *old_r = probe(mutex, md5, true);
+    HostDBInfo old_info;
+    if (old_r)
+      old_info = *old_r;
+    HostDBRoundRobin *old_rr_data = old_r ? old_r->rr() : NULL;
+#ifdef DEBUG
+    if (old_rr_data) {
+      for (int i = 0; i < old_rr_data->rrcount; ++i) {
+        if (old_r->md5_high != old_rr_data->info[i].md5_high ||
+            old_r->md5_low != old_rr_data->info[i].md5_low ||
+            old_r->md5_low_low != old_rr_data->info[i].md5_low_low)
+          ink_assert(0);
+      }
+    }
+#endif
+    int n = 0, nn = 0;
+    void* first = 0;
+    uint8_t af = e ? e->ent.h_addrtype : AF_UNSPEC; // address family
+    if (rr) {
+      if (is_srv() && !failed) {
+        n = e->srv_hosts.srv_host_count;
+      } else {
+        void* ptr; // tmp for current entry.
+        for (
+            ; nn < HOST_DB_MAX_ROUND_ROBIN_INFO
+              && 0 != (ptr = e->ent.h_addr_list[nn])
+            ; ++nn
+        ) {
+          if (is_addr_valid(af, ptr)) {
+            if (! first) first = ptr;
+            ++n;
+          } else {
+            Warning("Zero address removed from round-robin list for '%s'", md5.host_name);
+          }
+          // what's the point of @a n? Should there be something like
+          // if (n != nn) e->ent.h_addr_list[n] = e->ent->h_addr_list[nn];
+          // with a final copy of the terminating null? - AMC
+        }
+        if (!first) {
+          failed = true;
+          rr = false;
+        }
+      }
+    } else if (!failed) {
+      first = e->ent.h_addr_list[0];
+    } // else first is 0.
+
+    HostDBInfo *r = NULL;
+    IpAddr tip; // temp storage if needed.
+
+    if (is_byname()) {
+      if (first) ip_addr_set(tip, af, first);
+      r = lookup_done(tip, md5.host_name, rr, ttl_seconds, failed ? 0 : &e->srv_hosts);
+    } else if (is_srv()) {
+      if (!failed)
+        tip._family = AF_INET; // force the tip valid, or else the srv will fail
+      r = lookup_done(tip,  /* junk: FIXME: is the code in lookup_done() wrong to NEED this? */
+                      md5.host_name,     /* hostname */
+                      rr,       /* is round robin, doesnt matter for SRV since we recheck getCount() inside lookup_done() */
+                      ttl_seconds,      /* ttl in seconds */
+                      failed ? 0 : &e->srv_hosts);
+    } else if (failed) {
+      r = lookup_done(tip, md5.host_name, false, ttl_seconds, 0);
+    } else {
+      r = lookup_done(md5.ip, e->ent.h_name, false, ttl_seconds, &e->srv_hosts);
+    }
+
+    ink_assert(!r || (r->app.allotment.application1 == 0 && r->app.allotment.application2 == 0));
+
+    if (rr) {
+      const int rrsize = HostDBRoundRobin::size(n, e->srv_hosts.srv_hosts_length);
+      HostDBRoundRobin *rr_data = (HostDBRoundRobin *) hostDB.alloc(&r->app.rr.offset, rrsize);
+
+      Debug("hostdb", "allocating %d bytes for %d RR at %p %d", rrsize, n, rr_data, r->app.rr.offset);
+
+      if (rr_data) {
+        rr_data->length = rrsize;
+        int i = 0, ii = 0;
+        if (is_srv()) {
+          int skip = 0;
+          char *pos = (char *) rr_data + sizeof(HostDBRoundRobin) + n * sizeof(HostDBInfo);
+          SRV *q[HOST_DB_MAX_ROUND_ROBIN_INFO];
+          ink_assert(n <= HOST_DB_MAX_ROUND_ROBIN_INFO);
+          // sort
+          for (i = 0; i < n; ++i) {
+            q[i] = &e->srv_hosts.hosts[i];
+          }
+          for (i = 0; i < n; ++i) {
+            for (ii = i + 1; ii < n; ++ii) {
+              if (*q[ii] < *q[i]) {
+                SRV *tmp = q[i];
+                q[i] = q[ii];
+                q[ii] = tmp;
+              }
+            }
+          }
+
+          for (i = 0; i < n; ++i) {
+            SRV *t = q[i];
+            HostDBInfo& item = rr_data->info[i];
+
+            memset(&item, 0, sizeof(item));
+            item.round_robin = 0;
+            item.reverse_dns = 0;
+            item.is_srv = 1;
+            item.data.srv.srv_weight = t->weight;
+            item.data.srv.srv_priority = t->priority;
+            item.data.srv.srv_port = t->port;
+            item.data.srv.key = t->key;
+
+            ink_assert((skip + t->host_len) <= e->srv_hosts.srv_hosts_length);
+
+            memcpy(pos + skip, t->host, t->host_len);
+            item.data.srv.srv_offset = (pos - (char *) rr_data) + skip;
+
+            skip += t->host_len;
+
+            item.md5_high = r->md5_high;
+            item.md5_low = r->md5_low;
+            item.md5_low_low = r->md5_low_low;
+            item.full = 1;
+
+            item.app.allotment.application1 = 0;
+            item.app.allotment.application2 = 0;
+            Debug("dns_srv", "inserted SRV RR record [%s] into HostDB with TTL: %d seconds", t->host, ttl_seconds);
+          }
+          rr_data->good = rr_data->rrcount = n;
+          rr_data->current = 0;
+
+          // restore
+          if (old_rr_data) {
+            for (i = 0; i < rr_data->rrcount; ++i) {
+              for (ii = 0; ii < old_rr_data->rrcount; ++ii) {
+                if (rr_data->info[i].data.srv.key == old_rr_data->info[ii].data.srv.key) {
+                  char *new_host = rr_data->info[i].srvname(rr_data);
+                  char *old_host = old_rr_data->info[ii].srvname(old_rr_data);
+                  if (!strcmp(new_host, old_host))
+                    rr_data->info[i].app = old_rr_data->info[ii].app;
+                }
+              }
+            }
+          }
+        } else {
+          for (ii = 0; ii < nn; ++ii) {
+            if (is_addr_valid(af, e->ent.h_addr_list[ii])) {
+              HostDBInfo& item = rr_data->info[i];
+              ip_addr_set(item.ip(), af, e->ent.h_addr_list[ii]);
+//              rr_data->info[i].ip() = *(unsigned int *) e->ent.h_addr_list[ii];
+              item.full = 1;
+              item.round_robin = 0;
+              item.reverse_dns = 0;
+              item.is_srv = 0;
+              item.md5_high = r->md5_high;
+              item.md5_low = r->md5_low;
+              item.md5_low_low = r->md5_low_low;
+              if (!restore_info(&item, old_r, old_info, old_rr_data)) {
+                item.app.allotment.application1 = 0;
+                item.app.allotment.application2 = 0;
+              }
+              ++i;
+            }
+          }
+          rr_data->good = rr_data->rrcount = n;
+          rr_data->current = 0;
+        }
+      } else {
+        ink_assert(!"out of room in hostdb data area");
+        Warning("out of room in hostdb for round-robin DNS data");
+        r->round_robin = 0;
+      }
+    }
+    if (!failed && !rr && !is_srv())
+      restore_info(r, old_r, old_info, old_rr_data);
+    ink_assert(!r || !r->round_robin || !r->reverse_dns);
+    ink_assert(failed || !r->round_robin || r->app.rr.offset);
+
+    // if we are not the owner, put on the owner
+    //
+    ClusterMachine *m = cluster_machine_at_depth(master_hash(md5.hash));
+    if (m)
+      do_put_response(m, r, NULL);
+
+    // try to callback the user
+    //
+    if (action.continuation) {
+      // Check for IP family failover
+      if (failed && check_for_retry(md5.db_mark, host_res_style)) {
+        this->refresh_MD5();
+        SET_CONTINUATION_HANDLER(this, (HostDBContHandler) & HostDBContinuation::probeEvent);
+        thread->schedule_in(this, MUTEX_RETRY_DELAY);
+        return EVENT_CONT;
+      }
+
+      MUTEX_TRY_LOCK_FOR(lock, action.mutex, thread, action.continuation);
+      if (!lock) {
+        remove_trigger_pending_dns();
+        SET_HANDLER((HostDBContHandler) & HostDBContinuation::probeEvent);
+        thread->schedule_in(this, HOST_DB_RETRY_PERIOD);
+        return EVENT_CONT;
+      }
+      if (!action.cancelled)
+        reply_to_cont(action.continuation, r, is_srv());
+    }
+    // wake up everyone else who is waiting
+    remove_trigger_pending_dns();
+
+    // all done
+    //
+    hostdb_cont_free(this);
+    return EVENT_DONE;
+  }
+}
+
+
+//
+// HostDB Get Message
+// Used to lookup host information on a remote node in the cluster
+//
+struct HostDB_get_message {
+  INK_MD5 md5;
+  IpEndpoint ip;
+  Continuation *cont;
+  int namelen;
+  char name[MAXDNAME];
+};
+
+
+//
+// Make a get message
+//
+int
+HostDBContinuation::make_get_message(char *buf, int size)
+{
+  ink_assert(size >= (int) sizeof(HostDB_get_message));
+
+  HostDB_get_message *msg = reinterpret_cast<HostDB_get_message *>(buf);
+  msg->md5 = md5.hash;
+  ats_ip_set(&msg->ip.sa, md5.ip, htons(md5.port));
+  msg->cont = this;
+
+  // name
+  ink_strlcpy(msg->name, md5.host_name, sizeof(msg->name));
+
+  // length
+  int len = sizeof(HostDB_get_message) - MAXDNAME + md5.host_len + 1;
+
+  return len;
+}
+
+
+//
+// Make and send a get message
+//
+bool HostDBContinuation::do_get_response(Event * /* e ATS_UNUSED */)
+{
+  if (!hostdb_cluster)
+    return false;
+
+  // find an appropriate Machine
+  //
+  ClusterMachine *m = NULL;
+
+  if (hostdb_migrate_on_demand) {
+    m = cluster_machine_at_depth(master_hash(md5.hash), &probe_depth, past_probes);
+  } else {
+    if (probe_depth)
+      return false;
+    m = cluster_machine_at_depth(master_hash(md5.hash));
+    probe_depth = 1;
+  }
+
+  if (!m)
+    return false;
+
+  // Make message
+  //
+  HostDB_get_message msg;
+
+  memset(&msg, 0, sizeof(msg));
+  int len = make_get_message((char *) &msg, sizeof(HostDB_get_message));
+
+  // Setup this continuation, with a timeout
+  //
+  remoteHostDBQueue[key_partition()].enqueue(this);
+  SET_HANDLER((HostDBContHandler) & HostDBContinuation::clusterEvent);
+  timeout = mutex->thread_holding->schedule_in(this, HOST_DB_CLUSTER_TIMEOUT);
+
+  // Send the message
+  //
+  clusterProcessor.invoke_remote(m->pop_ClusterHandler(), GET_HOSTINFO_CLUSTER_FUNCTION, (char *) &msg, len);
+
+  return true;
+}
+
+
+//
+// HostDB Put Message
+// This message is used in a response to a cluster node for
+// Host inforamation.
+//
+struct HostDB_put_message {
+  INK_MD5 md5;
+  IpEndpoint ip;
+  unsigned int ttl;
+  unsigned int missing:1;
+  unsigned int round_robin:1;
+  Continuation* cont;
+  unsigned int application1;
+  unsigned int application2;
+  int namelen;
+  char name[MAXDNAME];
+};
+
+
+//
+// Build the put message
+//
+int
+HostDBContinuation::make_put_message(HostDBInfo * r, Continuation * c, char *buf, int size)
+{
+  ink_assert(size >= (int) sizeof(HostDB_put_message));
+
+  HostDB_put_message *msg = reinterpret_cast<HostDB_put_message *>(buf);
+  memset(msg, 0, sizeof(HostDB_put_message));
+
+  msg->md5 = md5.hash;
+  msg->cont = c;
+  if (r) {
+    ats_ip_copy(&msg->ip.sa, r->ip());
+    msg->application1 = r->app.allotment.application1;
+    msg->application2 = r->app.allotment.application2;
+    msg->missing = false;
+    msg->round_robin = r->round_robin;
+    msg->ttl = r->ip_time_remaining();
+  } else {
+    msg->missing = true;
+  }
+
+  // name
+  ink_strlcpy(msg->name, md5.host_name, sizeof(msg->name));
+
+  // length
+  int len = sizeof(HostDB_put_message) - MAXDNAME + md5.host_len + 1;
+
+  return len;
+}
+
+
+//
+// Build the put message and send it
+//
+void
+HostDBContinuation::do_put_response(ClusterMachine * m, HostDBInfo * r, Continuation * c)
+{
+  // don't remote fill round-robin DNS entries
+  // if configured not to cluster them
+  if (!hostdb_cluster || (!c && r->round_robin && !hostdb_cluster_round_robin))
+    return;
+
+  HostDB_put_message msg;
+  int len = make_put_message(r, c, (char *) &msg, sizeof(HostDB_put_message));
+
+  clusterProcessor.invoke_remote(m->pop_ClusterHandler(), PUT_HOSTINFO_CLUSTER_FUNCTION, (char *) &msg, len);
+
+}
+
+
+//
+// Probe state
+//
+int
+HostDBContinuation::probeEvent(int /* event ATS_UNUSED */, Event * e)
+{
+  ink_assert(!link.prev && !link.next);
+  EThread *t = e ? e->ethread : this_ethread();
+
+  MUTEX_TRY_LOCK_FOR(lock, action.mutex, t, action.continuation);
+  if (!lock) {
+    mutex->thread_holding->schedule_in(this, HOST_DB_RETRY_PERIOD);
+    return EVENT_CONT;
+  }
+
+  if (action.cancelled) {
+    hostdb_cont_free(this);
+    return EVENT_DONE;
+  }
+
+  if (!hostdb_enable || (!*md5.host_name && !md5.ip.isValid())) {
+    if (action.continuation)
+      action.continuation->handleEvent(EVENT_HOST_DB_LOOKUP, NULL);
+    if (from)
+      do_put_response(from, 0, from_cont);
+    hostdb_cont_free(this);
+    return EVENT_DONE;
+  }
+
+  if (!force_dns) {
+
+    // Do the probe
+    //
+    HostDBInfo *r = probe(mutex, md5, false);
+
+    if (r)
+      HOSTDB_INCREMENT_DYN_STAT(hostdb_total_hits_stat);
+
+    if (action.continuation && r)
+      reply_to_cont(action.continuation, r);
+
+    // Respond to any remote node
+    //
+    if (from)
+      do_put_response(from, r, from_cont);
+
+    // If it suceeds or it was a remote probe, we are done
+    //
+    if (r || from) {
+      hostdb_cont_free(this);
+      return EVENT_DONE;
+    }
+    // If it failed, do a remote probe
+    //
+    if (do_get_response(e))
+      return EVENT_CONT;
+  }
+  // If there are no remote nodes to probe, do a DNS lookup
+  //
+  do_dns();
+  return EVENT_DONE;
+}
+
+
+int
+HostDBContinuation::set_check_pending_dns()
+{
+  Queue<HostDBContinuation> &q = hostDB.pending_dns_for_hash(md5.hash);
+  HostDBContinuation *c = q.head;
+  for (; c; c = (HostDBContinuation *) c->link.next) {
+    if (md5.hash == c->md5.hash) {
+      Debug("hostdb", "enqueuing additional request");
+      q.enqueue(this);
+      return false;
+    }
+  }
+  q.enqueue(this);
+  return true;
+}
+
+
+void
+HostDBContinuation::remove_trigger_pending_dns()
+{
+  Queue<HostDBContinuation> &q = hostDB.pending_dns_for_hash(md5.hash);
+  q.remove(this);
+  HostDBContinuation *c = q.head;
+  Queue<HostDBContinuation> qq;
+  while (c) {
+    HostDBContinuation *n = (HostDBContinuation *) c->link.next;
+    if (md5.hash == c->md5.hash) {
+      Debug("hostdb", "dequeuing additional request");
+      q.remove(c);
+      qq.enqueue(c);
+    }
+    c = n;
+  }
+  while ((c = qq.dequeue()))
+    c->handleEvent(EVENT_IMMEDIATE, NULL);
+}
+
+
+//
+// Query the DNS processor
+//
+void
+HostDBContinuation::do_dns()
+{
+  ink_assert(!action.cancelled);
+  if (is_byname()) {
+    Debug("hostdb", "DNS %s", md5.host_name);
+    IpAddr tip;
+    if (0 == tip.load(md5.host_name)) {
+      // check 127.0.0.1 format // What the heck does that mean? - AMC
+      if (action.continuation) {
+        HostDBInfo *r = lookup_done(tip, md5.host_name, false, HOST_DB_MAX_TTL, NULL);
+        reply_to_cont(action.continuation, r);
+      }
+      hostdb_cont_free(this);
+      return;
+    }
+  }
+  if (hostdb_lookup_timeout)
+    timeout = mutex->thread_holding->schedule_in(this, HRTIME_SECONDS(hostdb_lookup_timeout));
+  else
+    timeout = NULL;
+  if (set_check_pending_dns()) {
+    DNSProcessor::Options opt;
+    opt.timeout = dns_lookup_timeout;
+    opt.host_res_style = host_res_style_for(md5.db_mark);
+    SET_HANDLER((HostDBContHandler) & HostDBContinuation::dnsEvent);
+    if (is_byname()) {
+      if (md5.dns_server)
+        opt.handler = md5.dns_server->x_dnsH;
+      pending_action = dnsProcessor.gethostbyname(this, md5.host_name, opt);
+    } else if (is_srv()) {
+      Debug("dns_srv", "SRV lookup of %s", md5.host_name);
+      pending_action = dnsProcessor.getSRVbyname(this, md5.host_name, opt);
+    } else {
+      ip_text_buffer ipb;
+      Debug("hostdb", "DNS IP %s", md5.ip.toString(ipb, sizeof ipb));
+      pending_action = dnsProcessor.gethostbyaddr(this, &md5.ip, opt);
+    }
+  } else {
+    SET_HANDLER((HostDBContHandler) & HostDBContinuation::dnsPendingEvent);
+  }
+}
+
+
+//
+// Handle the response (put message)
+//
+int
+HostDBContinuation::clusterResponseEvent(int/*  event ATS_UNUSED */, Event * e)
+{
+  if (from_cont) {
+    HostDBContinuation *c;
+    for (c = (HostDBContinuation *) remoteHostDBQueue[key_partition()].head; c; c = (HostDBContinuation *) c->link.next)
+      if (c == from_cont)
+        break;
+
+    // Check to see that we have not already timed out
+    //
+    if (c) {
+      action = c;
+      from_cont = 0;
+      MUTEX_TRY_LOCK(lock, c->mutex, e->ethread);
+      MUTEX_TRY_LOCK(lock2, c->action.mutex, e->ethread);
+      if (!lock || !lock2) {
+        e->schedule_in(HOST_DB_RETRY_PERIOD);
+        return EVENT_CONT;
+      }
+      bool failed = missing || (round_robin && !hostdb_cluster_round_robin);
+      action.continuation->handleEvent(EVENT_HOST_DB_GET_RESPONSE, failed ? 0 : this);
+    }
+  } else {
+    action = 0;
+    // just a remote fill
+    ink_assert(!missing);
+    lookup_done(md5.ip, md5.host_name, false, ttl, NULL);
+  }
+  hostdb_cont_free(this);
+  return EVENT_DONE;
+}
+
+
+//
+// Wait for the response (put message)
+//
+int
+HostDBContinuation::clusterEvent(int event, Event * e)
+{
+  // remove ourselves from the queue
+  //
+  remoteHostDBQueue[key_partition()].remove(this);
+
+  switch (event) {
+  default:
+    ink_assert(!"bad case");
+    hostdb_cont_free(this);
+    return EVENT_DONE;
+
+    // handle the put response, e is really a HostDBContinuation *
+    //
+  case EVENT_HOST_DB_GET_RESPONSE:
+    if (timeout) {
+      timeout->cancel(this);
+      timeout = NULL;
+    }
+    if (e) {
+      HostDBContinuation *c = (HostDBContinuation *) e;
+      HostDBInfo *r = lookup_done(md5.ip, c->md5.host_name, false, c->ttl, NULL);
+      r->app.allotment.application1 = c->app.allotment.application1;
+      r->app.allotment.application2 = c->app.allotment.application2;
+
+      HOSTDB_INCREMENT_DYN_STAT(hostdb_total_hits_stat);
+
+      if (!action.cancelled) {
+        if (reply_to_cont(action.continuation, r)) {
+          // if we are not the owner and neither was the sender,
+          // fill the owner
+          //
+          if (hostdb_migrate_on_demand) {
+            ClusterMachine *m = cluster_machine_at_depth(master_hash(md5.hash));
+            if (m && m != c->from)
+              do_put_response(m, r, NULL);
+          }
+        }
+      }
+      hostdb_cont_free(this);
+      return EVENT_DONE;
+    }
+    return failed_cluster_request(e);
+
+    // did not get the put message in time
+    //
+  case EVENT_INTERVAL:{
+      MUTEX_TRY_LOCK_FOR(lock, action.mutex, e->ethread, action.continuation);
+      if (!lock) {
+        e->schedule_in(HOST_DB_RETRY_PERIOD);
+        return EVENT_CONT;
+      }
+      return failed_cluster_request(e);
+    }
+  }
+}
+
+
+int
+HostDBContinuation::failed_cluster_request(Event * e)
+{
+  if (action.cancelled) {
+    hostdb_cont_free(this);
+    return EVENT_DONE;
+  }
+  // Attempt another remote probe
+  //
+  if (do_get_response(e))
+    return EVENT_CONT;
+
+  // Otherwise, do a DNS lookup
+  //
+  do_dns();
+  return EVENT_DONE;
+}
+
+
+void
+get_hostinfo_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  HostDBMD5 md5;
+  HostDB_get_message *msg = (HostDB_get_message *) data;
+
+  md5.host_name = msg->name;
+  md5.host_len = msg->namelen;
+  md5.ip.assign(&msg->ip.sa);
+  md5.port = ats_ip_port_host_order(&msg->ip.sa);
+  md5.hash = msg->md5;
+  md5.db_mark = db_mark_for(&msg->ip.sa);
+#ifdef SPLIT_DNS
+  SplitDNS *pSD = 0;
+  char *hostname = msg->name;
+  if (hostname && SplitDNSConfig::isSplitDNSEnabled()) {
+    pSD = SplitDNSConfig::acquire();
+
+    if (0 != pSD) {
+      md5.dns_server = static_cast<DNSServer*>(pSD->getDNSRecord(hostname));
+    }
+    SplitDNSConfig::release(pSD);
+  }
+#endif // SPLIT_DNS
+
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  HostDBContinuation::Options copt;
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::probeEvent);
+  c->from = ch->machine;
+  c->from_cont = msg->cont;
+
+  /* -----------------------------------------
+     we make a big assumption here! we presume
+     that all the machines in the cluster are
+     set to use the same configuration for
+     DNS servers
+     ----------------------------------------- */
+
+  copt.host_res_style = host_res_style_for(&msg->ip.sa);
+  c->init(md5, copt);
+  c->mutex = hostDB.lock_for_bucket(fold_md5(msg->md5) % hostDB.buckets);
+  c->action.mutex = c->mutex;
+  dnsProcessor.thread->schedule_imm(c);
+}
+
+
+void
+put_hostinfo_ClusterFunction(ClusterHandler *ch, void *data, int /* len ATS_UNUSED */)
+{
+  HostDB_put_message *msg = (HostDB_put_message *) data;
+  HostDBContinuation *c = hostDBContAllocator.alloc();
+  HostDBContinuation::Options copt;
+  HostDBMD5 md5;
+
+  SET_CONTINUATION_HANDLER(c, (HostDBContHandler) & HostDBContinuation::clusterResponseEvent);
+  md5.host_name = msg->name;
+  md5.host_len = msg->namelen;
+  md5.ip.assign(&msg->ip.sa);
+  md5.port = ats_ip_port_host_order(&msg->ip.sa);
+  md5.hash = msg->md5;
+  md5.db_mark = db_mark_for(&msg->ip.sa);
+  copt.host_res_style = host_res_style_for(&msg->ip.sa);
+  c->init(md5, copt);
+  c->mutex = hostDB.lock_for_bucket(fold_md5(msg->md5) % hostDB.buckets);
+  c->from_cont = msg->cont;     // cannot use action if cont freed due to timeout
+  c->missing = msg->missing;
+  c->round_robin = msg->round_robin;
+  c->ttl = msg->ttl;
+  c->from = ch->machine;
+  dnsProcessor.thread->schedule_imm(c);
+}
+
+
+//
+// Background event
+// Just increment the current_interval.  Might do other stuff
+// here, like move records to the current position in the cluster.
+//
+int
+HostDBContinuation::backgroundEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  hostdb_current_interval++;
+
+  return EVENT_CONT;
+}
+
+bool HostDBInfo::match(INK_MD5 & md5, int /* bucket ATS_UNUSED */, int buckets)
+{
+  if (md5[1] != md5_high)
+    return false;
+
+  uint64_t folded_md5 = fold_md5(md5);
+  uint64_t ttag = folded_md5 / buckets;
+
+  if (!ttag)
+    ttag = 1;
+
+  struct
+  {
+    unsigned int md5_low_low:24;
+    unsigned int md5_low;
+  } tmp;
+
+  tmp.md5_low_low = (unsigned int) ttag;
+  tmp.md5_low = (unsigned int) (ttag >> 24);
+
+  return tmp.md5_low_low == md5_low_low && tmp.md5_low == md5_low;
+}
+
+
+char *
+HostDBInfo::hostname()
+{
+  if (!reverse_dns)
+    return NULL;
+
+  return (char *) hostDB.ptr(&data.hostname_offset, hostDB.ptr_to_partition((char *) this));
+}
+
+
+HostDBRoundRobin *
+HostDBInfo::rr()
+{
+  if (!round_robin)
+    return NULL;
+
+  HostDBRoundRobin *r = (HostDBRoundRobin *) hostDB.ptr(&app.rr.offset, hostDB.ptr_to_partition((char *) this));
+
+  if (r && (r->rrcount > HOST_DB_MAX_ROUND_ROBIN_INFO || r->rrcount <= 0 || r->good > HOST_DB_MAX_ROUND_ROBIN_INFO || r->good <= 0)) {
+    ink_assert(!"bad round-robin");
+    return NULL;
+  }
+  return r;
+}
+
+
+int
+HostDBInfo::heap_size()
+{
+  if (reverse_dns) {
+    char *h = hostname();
+
+    if (h)
+      return strlen(h) + 1;
+  } else if (round_robin) {
+    HostDBRoundRobin *r = rr();
+
+    if (r)
+      return r->length;
+  }
+  return 0;
+}
+
+
+int *
+HostDBInfo::heap_offset_ptr()
+{
+  if (reverse_dns)
+    return &data.hostname_offset;
+
+  if (round_robin)
+    return &app.rr.offset;
+
+  return NULL;
+}
+
+
+ClusterMachine *
+HostDBContinuation::master_machine(ClusterConfiguration * cc)
+{
+  return cc->machine_hash((int) (md5.hash[1] >> 32));
+}
+
+struct ShowHostDB;
+typedef int (ShowHostDB::*ShowHostDBEventHandler) (int event, Event * data);
+struct ShowHostDB: public ShowCont
+{
+  char *name;
+  IpEndpoint ip;
+  bool force;
+
+  int showMain(int event, Event * e)
+  {
+    CHECK_SHOW(begin("HostDB"));
+    CHECK_SHOW(show("<form method = GET action = \"./name\">\n"
+                    "Lookup by name (e.g. trafficserver.apache.org):<br>\n"
+                    "<input type=text name=name size=64 maxlength=256>\n"
+                    "</form>\n"
+                    "<form method = GET action = \"./ip\">\n"
+                    "Lookup by IP (e.g. 127.0.0.1):<br>\n"
+                    "<input type=text name=ip size=64 maxlength=256>\n"
+                    "</form>\n"
+                    "<form method = GET action = \"./nameforce\">\n"
+                    "Force DNS by name (e.g. trafficserver.apache.org):<br>\n"
+                    "<input type=text name=name size=64 maxlength=256>\n" "</form>\n"));
+    return complete(event, e);
+  }
+
+
+  int showLookup(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    SET_HANDLER(&ShowHostDB::showLookupDone);
+    if (name)
+      hostDBProcessor.getbyname_re(this, name, 0, HostDBProcessor::Options().setFlags(force ? HostDBProcessor::HOSTDB_FORCE_DNS_ALWAYS : 0));
+    else
+      hostDBProcessor.getbyaddr_re(this, &ip.sa);
+    return EVENT_CONT;
+  }
+
+
+  int showOne(HostDBInfo * r, bool rr, int event, Event * e)
+  {
+    ip_text_buffer b;
+    CHECK_SHOW(show("<table border=1>\n"));
+    CHECK_SHOW(show("<tr><td>%s</td><td>%s%s</td></tr>\n",
+                    "Type", r->round_robin ? "Round-Robin" : "", r->reverse_dns ? "Reverse DNS" : "DNS"));
+    CHECK_SHOW(show("<tr><td>%s</td><td>%u</td></tr>\n", "App1", r->app.allotment.application1));
+    CHECK_SHOW(show("<tr><td>%s</td><td>%u</td></tr>\n", "App2", r->app.allotment.application2));
+    if (!rr) {
+      CHECK_SHOW(show("<tr><td>%s</td><td>%s</td></tr>\n", "Stale", r->is_ip_stale()? "Yes" : "No"));
+      CHECK_SHOW(show("<tr><td>%s</td><td>%s</td></tr>\n", "Timed-Out", r->is_ip_timeout()? "Yes" : "No"));
+      CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "TTL", r->ip_time_remaining()));
+    }
+    if (r->reverse_dns) {
+      CHECK_SHOW(show("<tr><td>%s</td><td>%s</td></tr>\n", "Hostname", r->hostname()? r->hostname() : "<none>"));
+    } else {
+      CHECK_SHOW(show("<tr><td>%s</td><td>%s</td></tr>\n", "IP", ats_ip_ntop(r->ip(), b, sizeof b)));
+    }
+    CHECK_SHOW(show("</table>\n"));
+    return EVENT_CONT;
+  }
+
+
+  int showLookupDone(int event, Event * e)
+  {
+    HostDBInfo *r = (HostDBInfo *) e;
+
+    CHECK_SHOW(begin("HostDB Lookup"));
+    if (name) {
+      CHECK_SHOW(show("<H2>%s</H2>\n", name));
+    } else {
+      CHECK_SHOW(show("<H2>%u.%u.%u.%u</H2>\n", PRINT_IP(ip)));
+    }
+    if (r) {
+      showOne(r, false, event, e);
+      if (r->round_robin) {
+        HostDBRoundRobin *rr_data = r->rr();
+        if (rr_data) {
+          CHECK_SHOW(show("<table border=1>\n"));
+          CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "Total", rr_data->rrcount));
+          CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "Good", rr_data->good));
+          CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "Current", rr_data->current));
+          CHECK_SHOW(show("</table>\n"));
+
+          for (int i = 0; i < rr_data->rrcount; i++)
+            showOne(&rr_data->info[i], true, event, e);
+        }
+      }
+    } else {
+      if (name) {
+        ip_text_buffer b;
+        CHECK_SHOW(show("<H2>%s Not Found</H2>\n", ats_ip_ntop(&ip.sa, b, sizeof b)));
+      } else {
+        CHECK_SHOW(show("<H2>%s Not Found</H2>\n", name));
+      }
+    }
+    return complete(event, e);
+  }
+
+
+  ShowHostDB(Continuation * c, HTTPHdr * h)
+    : ShowCont(c, h), name(0), force(0)
+    {
+      ats_ip_invalidate(&ip);
+      SET_HANDLER(&ShowHostDB::showMain);
+    }
+
+};
+
+#define STR_LEN_EQ_PREFIX(_x,_l,_s) (!ptr_len_ncasecmp(_x,_l,_s,sizeof(_s)-1))
+
+
+static Action *
+register_ShowHostDB(Continuation * c, HTTPHdr * h)
+{
+  ShowHostDB *s = new ShowHostDB(c, h);
+  int path_len;
+  const char *path = h->url_get()->path_get(&path_len);
+
+  SET_CONTINUATION_HANDLER(s, &ShowHostDB::showMain);
+  if (STR_LEN_EQ_PREFIX(path, path_len, "ip")) {
+    s->force = !ptr_len_ncasecmp(path + 3, path_len - 3, "force", 5);
+    int query_len;
+    const char *query = h->url_get()->query_get(&query_len);
+    s->sarg = ats_strndup(query, query_len);
+    char *gn = NULL;
+    if (s->sarg)
+      gn = (char *)memchr(s->sarg, '=', strlen(s->sarg));
+    if (gn) {
+      ats_ip_pton(gn+1, &s->ip); // hope that's null terminated.
+    }
+    SET_CONTINUATION_HANDLER(s, &ShowHostDB::showLookup);
+  } else if (STR_LEN_EQ_PREFIX(path, path_len, "name")) {
+    s->force = !ptr_len_ncasecmp(path + 5, path_len - 5, "force", 5);
+    int query_len;
+    const char *query = h->url_get()->query_get(&query_len);
+    s->sarg = ats_strndup(query, query_len);
+    char *gn = NULL;
+    if (s->sarg)
+      gn = (char *)memchr(s->sarg, '=', strlen(s->sarg));
+    if (gn)
+      s->name = gn + 1;
+    SET_CONTINUATION_HANDLER(s, &ShowHostDB::showLookup);
+  }
+  this_ethread()->schedule_imm(s);
+  return &s->action;
+}
+
+
+#define HOSTDB_TEST_MAX_OUTSTANDING 100
+#define HOSTDB_TEST_LENGTH          100000
+
+struct HostDBTestReverse;
+typedef int (HostDBTestReverse::*HostDBTestReverseHandler) (int, void *);
+struct HostDBTestReverse: public Continuation
+{
+  int outstanding;
+  int total;
+#if HAVE_LRAND48_R
+  struct drand48_data dr;
+#endif
+
+  int mainEvent(int event, Event * e)
+  {
+    if (event == EVENT_HOST_DB_LOOKUP) {
+      HostDBInfo *i = (HostDBInfo *) e;
+      if (i)
+          printf("HostDBTestReverse: reversed %s\n", i->hostname());
+        outstanding--;
+    }
+    while (outstanding < HOSTDB_TEST_MAX_OUTSTANDING && total < HOSTDB_TEST_LENGTH)
+    {
+      long l = 0;
+#if HAVE_LRAND48_R
+      lrand48_r(&dr, &l);
+#else
+      l = lrand48();
+#endif
+      IpEndpoint ip;
+      ip.sin.sin_addr.s_addr = static_cast<in_addr_t>(l);
+      outstanding++;
+      total++;
+      if (!(outstanding % 1000))
+        printf("HostDBTestReverse: %d\n", total);
+      hostDBProcessor.getbyaddr_re(this, &ip.sa);
+    }
+    if (!outstanding) {
+      printf("HostDBTestReverse: done\n");
+      delete this;
+    }
+    return EVENT_CONT;
+  }
+HostDBTestReverse():Continuation(new_ProxyMutex()), outstanding(0), total(0) {
+    SET_HANDLER((HostDBTestReverseHandler) & HostDBTestReverse::mainEvent);
+#if HAVE_SRAND48_R
+    srand48_r(time(NULL), &dr);
+#else
+    srand48(time(NULL));
+#endif
+  }
+};
+
+
+#if TS_HAS_TESTS
+void
+run_HostDBTest()
+{
+  if (is_action_tag_set("hostdb_test_rr"))
+    eventProcessor.schedule_every(new HostDBTestRR, HRTIME_SECONDS(1), ET_NET);
+  if (is_action_tag_set("hostdb_test_reverse")) {
+    eventProcessor.schedule_imm(new HostDBTestReverse, ET_CACHE);
+  }
+}
+#endif
+
+
+RecRawStatBlock *hostdb_rsb;
+
+void
+ink_hostdb_init(ModuleVersion v)
+{
+  static int init_called = 0;
+
+  ink_release_assert(!checkModuleVersion(v, HOSTDB_MODULE_VERSION));
+  if (init_called)
+    return;
+
+  init_called = 1;
+  // do one time stuff
+  // create a stat block for HostDBStats
+  hostdb_rsb = RecAllocateRawStatBlock((int) HostDB_Stat_Count);
+
+  //
+  // Register stats
+  //
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.total_entries",
+                     RECD_INT, RECP_PERSISTENT, (int) hostdb_total_entries_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.total_lookups",
+                     RECD_INT, RECP_PERSISTENT, (int) hostdb_total_lookups_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.total_hits",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) hostdb_total_hits_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.ttl", RECD_FLOAT, RECP_PERSISTENT, (int) hostdb_ttl_stat, RecRawStatSyncAvg);
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.ttl_expires",
+                     RECD_INT, RECP_PERSISTENT, (int) hostdb_ttl_expires_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.re_dns_on_reload",
+                     RECD_INT, RECP_PERSISTENT, (int) hostdb_re_dns_on_reload_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(hostdb_rsb, RECT_PROCESS,
+                     "proxy.process.hostdb.bytes", RECD_INT, RECP_PERSISTENT, (int) hostdb_bytes_stat, RecRawStatSyncCount);
+
+  ts_host_res_global_init();
+}
diff --git a/iocore/hostdb/I_HostDB.h b/iocore/hostdb/I_HostDB.h
new file mode 100644
index 00000000..a823e55d
--- /dev/null
+++ b/iocore/hostdb/I_HostDB.h
@@ -0,0 +1,50 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  I_HostDB.h
+
+
+ ****************************************************************************/
+
+#ifndef _I_HostDB_h_
+#define _I_HostDB_h_
+
+#include "I_EventSystem.h"
+#include "I_Net.h"
+#include "I_Cache.h"
+
+#include "I_HostDBProcessor.h"
+
+// TS-1925: switch from MMH to MD5 hash; bumped to version 2
+#define HOSTDB_MODULE_MAJOR_VERSION 2
+#define HOSTDB_MODULE_MINOR_VERSION 0
+
+#define HOSTDB_MODULE_VERSION makeModuleVersion(                 \
+                                    HOSTDB_MODULE_MAJOR_VERSION, \
+                                    HOSTDB_MODULE_MINOR_VERSION, \
+                                    PUBLIC_MODULE_HEADER)
+
+#endif /* _I_HostDB_h_ */
diff --git a/iocore/hostdb/I_HostDBProcessor.h b/iocore/hostdb/I_HostDBProcessor.h
new file mode 100644
index 00000000..be484579
--- /dev/null
+++ b/iocore/hostdb/I_HostDBProcessor.h
@@ -0,0 +1,497 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_HostDBProcessor_h_
+#define _I_HostDBProcessor_h_
+
+#include "I_EventSystem.h"
+#include "SRV.h"
+
+// Event returned on a lookup
+#define EVENT_HOST_DB_LOOKUP                 (HOSTDB_EVENT_EVENTS_START+0)
+#define EVENT_HOST_DB_IP_REMOVED             (HOSTDB_EVENT_EVENTS_START+1)
+#define EVENT_HOST_DB_GET_RESPONSE           (HOSTDB_EVENT_EVENTS_START+2)
+
+#define EVENT_SRV_LOOKUP                 (SRV_EVENT_EVENTS_START+0)
+#define EVENT_SRV_IP_REMOVED             (SRV_EVENT_EVENTS_START+1)
+#define EVENT_SRV_GET_RESPONSE           (SRV_EVENT_EVENTS_START+2)
+
+#define HOST_DB_MAX_ROUND_ROBIN_INFO         16
+
+#define HOST_DB_SRV_PREFIX "_http._tcp."
+//
+// Data
+//
+struct HostDBContinuation;
+
+//
+// The host database stores host information, most notably the
+// IP address.
+//
+// Since host information is relatively small, we can afford to have
+// a reasonable size memory cache, and use a (relatively) sparce
+// disk representation to decrease # of seeks.
+//
+extern int hostdb_enable;
+extern unsigned int hostdb_current_interval;
+extern unsigned int hostdb_ip_stale_interval;
+extern unsigned int hostdb_ip_timeout_interval;
+extern unsigned int hostdb_ip_fail_timeout_interval;
+extern unsigned int hostdb_serve_stale_but_revalidate;
+
+
+static inline unsigned int
+makeHostHash(const char *string)
+{
+  ink_assert(string && *string);
+  if (!string || *string == 0)
+    return 0;
+
+  const uint32_t InitialFNV = 2166136261U;
+  const int32_t FNVMultiple = 16777619;
+
+  uint64_t hash = InitialFNV;
+  uint32_t *p = (uint32_t *) &hash;
+  while(*string)  {
+    p[0] = p[0] ^ (toupper(*string));
+    hash = (p[1] ^ p[0]) * FNVMultiple;
+    ++string;
+  }
+  return (p[1] ^ p[0]);
+}
+
+//
+// Types
+//
+
+//
+// This structure contains the host information required by
+// the application.  Except for the initial fields it
+// is treated as opacque by the database.
+//
+
+union HostDBApplicationInfo
+{
+  struct application_data_allotment
+  {
+    unsigned int application1;
+    unsigned int application2;
+  } allotment;
+
+  //////////////////////////////////////////////////////////
+  // http server attributes in the host database          //
+  //                                                      //
+  // http_version       - one of HttpVersion_t            //
+  // pipeline_max       - max pipeline.     (up to 127).  //
+  //                      0 - no keep alive               //
+  //                      1 - no pipeline, only keepalive //
+  // keep_alive_timeout - in seconds. (up to 63 seconds). //
+  // last_failure       - UNIX time for the last time     //
+  //                      we tried the server & failed    //
+  // fail_count         - Number of times we tried and    //
+  //                       and failed to contact the host //
+  //////////////////////////////////////////////////////////
+  struct http_server_attr
+  {
+    unsigned int http_version:3;
+    unsigned int pipeline_max:7;
+    unsigned int keepalive_timeout:6;
+    unsigned int fail_count:8;
+    unsigned int unused1:8;
+    unsigned int last_failure:32;
+  } http_data;
+
+  enum HttpVersion_t
+  {
+    HTTP_VERSION_UNDEFINED = 0,
+    HTTP_VERSION_09 = 1,
+    HTTP_VERSION_10 = 2,
+    HTTP_VERSION_11 = 3
+  };
+
+  struct application_data_rr
+  {
+    int offset;
+  } rr;
+};
+
+struct HostDBRoundRobin;
+
+struct SRVInfo
+{
+  unsigned int srv_offset:16;
+  unsigned int srv_weight:16;
+  unsigned int srv_priority:16;
+  unsigned int srv_port:16;
+  unsigned int key;
+};
+
+struct HostDBInfo
+{
+  /** Internal IP address data.
+      This is at least large enough to hold an IPv6 address.
+  */
+  sockaddr* ip()  { return &data.ip.sa; }
+  sockaddr const* ip() const { return &data.ip.sa; }
+
+  char *hostname();
+  char *srvname(HostDBRoundRobin *rr);
+  HostDBRoundRobin *rr();
+
+  /** Indicate that the HostDBInfo is BAD and should be deleted. */
+  void bad() { full = 0; }
+
+  /**
+    Application specific data. NOTE: We need an integral number of these
+    per block. This structure is 32 bytes. (at 200k hosts = 8 Meg). Which
+    gives us 7 bytes of application information.
+
+  */
+  HostDBApplicationInfo app;
+
+  unsigned int ip_interval()
+  {
+    return (hostdb_current_interval - ip_timestamp) & 0x7FFFFFFF;
+  }
+
+  int ip_time_remaining()
+  {
+    return (int) ip_timeout_interval - (int) ((hostdb_current_interval - ip_timestamp) & 0x7FFFFFFF);
+  }
+
+  bool is_ip_stale() {
+    if (ip_timeout_interval >= 2 * hostdb_ip_stale_interval)
+      return ip_interval() >= hostdb_ip_stale_interval;
+    else
+      return false;
+  }
+
+  bool is_ip_timeout() {
+    return ip_interval() >= ip_timeout_interval;
+  }
+
+  bool is_ip_fail_timeout() {
+    return ip_interval() >= hostdb_ip_fail_timeout_interval;
+  }
+
+  void refresh_ip()
+  {
+    ip_timestamp = hostdb_current_interval;
+  }
+
+  bool serve_stale_but_revalidate() {
+    // the option is disabled
+    if (hostdb_serve_stale_but_revalidate <= 0)
+      return false;
+
+    // ip_timeout_interval == DNS TTL
+    // hostdb_serve_stale_but_revalidate == number of seconds
+    // ip_interval() is the number of seconds between now() and when the entry was inserted
+    if ((ip_timeout_interval + hostdb_serve_stale_but_revalidate) > ip_interval()) {
+      Debug("hostdb", "serving stale entry %d | %d | %d as requested by config",
+            ip_timeout_interval, hostdb_serve_stale_but_revalidate, ip_interval());
+      return true;
+    }
+    // otherwise, the entry is too old
+    return false;
+  }
+
+
+  //
+  // Private
+  //
+
+  union {
+    IpEndpoint ip; ///< IP address / port data.
+    int hostname_offset; ///< Some hostname thing.
+    SRVInfo srv;
+  } data;
+
+  unsigned int ip_timestamp;
+  // limited to 0x1FFFFF (24 days)
+  unsigned int ip_timeout_interval:31;
+
+  unsigned int full:1;
+  unsigned int backed:1;        // duplicated in lower level
+  unsigned int deleted:1;
+  unsigned int hits:3;
+
+  unsigned int is_srv:1; // steal a bit from ip_timeout_interval
+  unsigned int round_robin:1;
+  unsigned int reverse_dns:1;
+
+  unsigned int md5_low_low:24;
+  unsigned int md5_low;
+
+  uint64_t md5_high;
+
+  bool failed() {
+    return !((is_srv && data.srv.srv_offset) || (reverse_dns && data.hostname_offset) || ats_is_ip(ip()));
+  }
+  void set_failed() {
+    if (is_srv)
+      data.srv.srv_offset = 0;
+    else if (reverse_dns)
+      data.hostname_offset = 0;
+    else
+      ats_ip_invalidate(ip());
+  }
+
+  void set_deleted() { deleted = 1; }
+  bool is_deleted() const { return deleted; }
+
+  bool is_empty() const { return !full; }
+
+  void set_empty()
+  {
+    full = 0;
+    md5_high = 0;
+    md5_low = 0;
+    md5_low_low = 0;
+  }
+
+  void set_full(uint64_t folded_md5, int buckets)
+  {
+    uint64_t ttag = folded_md5 / buckets;
+
+    if (!ttag)
+      ttag = 1;
+    md5_low_low = (unsigned int) ttag;
+    md5_low = (unsigned int) (ttag >> 24);
+    full = 1;
+  }
+
+  void reset()
+  {
+    ats_ip_invalidate(ip());
+    app.allotment.application1 = 0;
+    app.allotment.application2 = 0;
+    backed = 0;
+    deleted = 0;
+    hits = 0;
+    round_robin = 0;
+    reverse_dns = 0;
+    is_srv = 0;
+  }
+
+  uint64_t tag() {
+    uint64_t f = md5_low;
+    return (f << 24) + md5_low_low;
+  }
+
+  bool match(INK_MD5 &, int, int);
+  int heap_size();
+  int *heap_offset_ptr();
+};
+
+
+struct HostDBRoundRobin
+{
+  /** Total number (to compute space used). */
+  short rrcount;
+
+  /** Number which have not failed a connect. */
+  short good;
+
+  unsigned short current;
+  unsigned short length;
+  ink_time_t timed_rr_ctime;
+
+  HostDBInfo info[];
+
+  // Return the allocation size of a HostDBRoundRobin struct suitable for storing
+  // "count" HostDBInfo records.
+  static unsigned size(unsigned count, unsigned srv_len = 0)
+  {
+    ink_assert(count > 0);
+    return INK_ALIGN((sizeof(HostDBRoundRobin) + (count * sizeof(HostDBInfo)) + srv_len), 8);
+  }
+
+  /** Find the index of @a addr in member @a info.
+      @return The index if found, -1 if not found.
+  */
+  int index_of(sockaddr const* addr);
+  HostDBInfo *find_ip(sockaddr const* addr);
+  // Find the srv target
+  HostDBInfo *find_target(const char *target);
+  /** Select the next entry after @a addr.
+      @note If @a addr isn't an address in the round robin nothing is updated.
+      @return The selected entry or @c NULL if @a addr wasn't present.
+   */
+  HostDBInfo* select_next(sockaddr const* addr);
+  HostDBInfo *select_best_http(sockaddr const* client_ip, ink_time_t now, int32_t fail_window);
+  HostDBInfo *select_best_srv(char *target, InkRand *rand, ink_time_t now, int32_t fail_window);
+  HostDBRoundRobin()
+    : rrcount(0), good(0), current(0), length(0), timed_rr_ctime(0)
+  { }
+
+};
+
+struct HostDBCache;
+
+// Prototype for inline completion functionf or
+//  getbyname_imm()
+typedef void (Continuation::*process_hostdb_info_pfn) (HostDBInfo * r);
+typedef void (Continuation::*process_srv_info_pfn) (HostDBInfo * r);
+
+
+/** The Host Databse access interface. */
+struct HostDBProcessor: public Processor
+{
+  friend struct HostDBSyncer;
+  // Public Interface
+
+  // Lookup Hostinfo by name
+  //    cont->handleEvent( EVENT_HOST_DB_LOOKUP, HostDBInfo * ); on success
+  //    cont->handleEVent( EVENT_HOST_DB_LOOKUP, 0); on failure
+  // Failure occurs when the host cannot be DNS-ed
+  // NOTE: Will call the continuation back before returning if data is in the
+  //       cache.  The HostDBInfo * becomes invalid when the callback returns.
+  //       The HostDBInfo may be changed during the callback.
+
+  enum
+  { HOSTDB_DO_NOT_FORCE_DNS = 0,
+    HOSTDB_ROUND_ROBIN = 0,
+    HOSTDB_FORCE_DNS_RELOAD = 1,
+    HOSTDB_FORCE_DNS_ALWAYS = 2,
+    HOSTDB_DO_NOT_ROUND_ROBIN = 4
+  };
+
+  /// Optional parameters for getby...
+  struct Options {
+    typedef Options self; ///< Self reference type.
+    int port; ///< Target service port (default 0 -> don't care)
+    int flags; ///< Processing flags (default HOSTDB_DO_NOT_FORCE_DNS)
+    int timeout; ///< Timeout value (default 0 -> default timeout)
+    HostResStyle host_res_style; ///< How to query host (default HOST_RES_IPV4)
+
+    Options() : port(0), flags(HOSTDB_DO_NOT_FORCE_DNS), timeout(0), host_res_style(HOST_RES_IPV4)
+    { }
+
+    /// Set the flags.
+    self& setFlags(int f) { flags = f; return *this; }
+  };
+
+  /// Default options.
+  static Options const DEFAULT_OPTIONS;
+
+  HostDBProcessor()
+  { }
+
+  inkcoreapi Action *getbyname_re(Continuation * cont, const char *hostname, int len, Options const& opt = DEFAULT_OPTIONS);
+
+  Action *getSRVbyname_imm(Continuation * cont, process_srv_info_pfn process_srv_info, const char *hostname, int len, Options const& opt = DEFAULT_OPTIONS);
+
+  Action *getbyname_imm(
+    Continuation * cont,
+    process_hostdb_info_pfn process_hostdb_info,
+    const char *hostname,
+    int len,
+    Options const& opt = DEFAULT_OPTIONS
+  );
+
+
+  /** Lookup Hostinfo by addr */
+  Action *getbyaddr_re(Continuation * cont, sockaddr const* aip)
+  {
+    return getby(cont, NULL, 0, aip, false, HOST_RES_NONE, 0);
+  }
+
+#if 0
+  /**
+    If you were unable to connect to an IP address associated with a
+    particular hostname, call this function and that IP address will
+    be marked "bad" and if the host is using round-robin DNS, next time
+    you will get a different IP address.
+
+  */
+  Action *failed_connect_on_ip_for_name(
+    Continuation * cont,
+    sockaddr const* aip,
+    const char *hostname, int len = 0
+  );
+#endif
+
+  /** Set the application information (fire-and-forget). */
+  void setbyname_appinfo(char *hostname, int len, int port, HostDBApplicationInfo * app)
+  {
+    sockaddr_in addr;
+    ats_ip4_set(&addr, INADDR_ANY, port);
+    setby(hostname, len, ats_ip_sa_cast(&addr), app);
+  }
+
+  void setbyaddr_appinfo(sockaddr const* addr, HostDBApplicationInfo * app) {
+    this->setby(0, 0, addr, app);
+  }
+
+  void setbyaddr_appinfo(in_addr_t ip, HostDBApplicationInfo * app)
+  {
+    sockaddr_in addr;
+    ats_ip4_set(&addr, ip);
+    this->setby(0, 0, ats_ip_sa_cast(&addr), app);
+  }
+
+  /** Configuration. */
+  static int hostdb_strict_round_robin;
+  static int hostdb_timed_round_robin;
+
+  // Processor Interface
+  /* hostdb does not use any dedicated event threads
+   * currently. Dont pass any value to start
+   */
+  int start(int no_of_additional_event_threads = 0, size_t stacksize = DEFAULT_STACKSIZE);
+
+  // Private
+  HostDBCache *cache();
+private:
+  Action *getby(
+    Continuation * cont,
+    const char *hostname, int len,
+    sockaddr const* ip,
+    bool aforce_dns, HostResStyle host_res_style, int timeout
+  );
+public:
+  /** Set something.
+      @a aip can carry address and / or port information. If setting just
+      by a port value, the address should be set to INADDR_ANY which is of
+      type IPv4.
+   */
+  void setby(
+    const char *hostname, ///< Hostname.
+    int len, ///< Length of hostname.
+    sockaddr const* aip, ///< Address and/or port.
+    HostDBApplicationInfo * app ///< I don't know.
+  );
+
+  void setby_srv(const char *hostname, int len, const char *target,
+      HostDBApplicationInfo * app);
+
+};
+
+void run_HostDBTest();
+
+extern inkcoreapi HostDBProcessor hostDBProcessor;
+
+void ink_hostdb_init(ModuleVersion version);
+
+#endif
diff --git a/iocore/hostdb/Inline.cc b/iocore/hostdb/Inline.cc
new file mode 100644
index 00000000..e93e860e
--- /dev/null
+++ b/iocore/hostdb/Inline.cc
@@ -0,0 +1,32 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using only the interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_HostDB.h"
+
+
diff --git a/iocore/hostdb/Makefile.am b/iocore/hostdb/Makefile.am
new file mode 100644
index 00000000..ef5d4643
--- /dev/null
+++ b/iocore/hostdb/Makefile.am
@@ -0,0 +1,47 @@
+# Makefile.am for the traffic/iocore/hostdb hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+EXTRA_DIST = I_HostDB.h
+
+noinst_LIBRARIES = libinkhostdb.a
+
+libinkhostdb_a_SOURCES = \
+  HostDB.cc \
+  I_HostDB.h \
+  I_HostDBProcessor.h \
+  Inline.cc \
+  MultiCache.cc \
+  P_HostDB.h \
+  P_HostDBProcessor.h \
+  P_MultiCache.h
+
+#test_UNUSED_SOURCES = \
+#  test_I_HostDB.cc \
+#  test_P_HostDB.cc
diff --git a/iocore/hostdb/Makefile.in b/iocore/hostdb/Makefile.in
new file mode 100644
index 00000000..cc62db30
--- /dev/null
+++ b/iocore/hostdb/Makefile.in
@@ -0,0 +1,885 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/hostdb hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
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+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = iocore/hostdb
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp
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+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HostDB.Po@am__quote@
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+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
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+	      "$$@" $$unique; \
+	  else \
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+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
+
+GTAGS:
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+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+
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+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+	ctags-am distclean distclean-compile distclean-generic \
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+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
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+
+#test_UNUSED_SOURCES = \
+#  test_I_HostDB.cc \
+#  test_P_HostDB.cc
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/iocore/hostdb/MultiCache.cc b/iocore/hostdb/MultiCache.cc
new file mode 100644
index 00000000..9c832c62
--- /dev/null
+++ b/iocore/hostdb/MultiCache.cc
@@ -0,0 +1,1430 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  MultiCache.cc
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "I_Layout.h"
+#include "P_HostDB.h"
+#include "P_MultiCache.h"
+#include "P_EventSystem.h"      // FIXME: need to have this in I_* header files.
+#include "ink_file.h"
+
+static const int MC_SYNC_MIN_PAUSE_TIME = HRTIME_MSECONDS(200); // Pause for at least 200ms
+
+MultiCacheBase::MultiCacheBase()
+  : store(0), mapped_header(NULL), data(0), lowest_level_data(0), miss_stat(0), buckets_per_partitionF8(0)
+{
+  filename[0] = 0;
+  memset(hit_stat, 0, sizeof(hit_stat));
+  memset(unsunk, 0, sizeof(unsunk));
+  for (int i = 0; i < MULTI_CACHE_PARTITIONS; i++)
+    unsunk[i].mc = this;
+}
+
+inline int
+store_verify(Store *store)
+{
+  if (!store)
+    return 0;
+  for (unsigned i = 0; i < store->n_disks; i++) {
+    for (Span * sd = store->disk[i]; sd; sd = sd->link.next) {
+      if (!sd->file_pathname && sd->offset)
+        return 0;
+    }
+  }
+  return 1;
+}
+
+MultiCacheHeader::MultiCacheHeader()
+  : magic(MULTI_CACHE_MAGIC_NUMBER), levels(0),
+    tag_bits(0), max_hits(0), elementsize(0),
+    buckets(0), totalelements(0), totalsize(0), nominal_elements(0), heap_size(0), heap_halfspace(0)
+{
+  memset(level_offset, 0, sizeof(level_offset));
+  memset(bucketsize, 0, sizeof(bucketsize));
+  memset(elements, 0, sizeof(elements));
+  heap_used[0] = 8;
+  heap_used[1] = 8;
+  version.ink_major = MULTI_CACHE_MAJOR_VERSION;
+  version.ink_minor = MULTI_CACHE_MINOR_VERSION;
+}
+
+static inline int
+bytes_to_blocks(int64_t b)
+{
+  return (int) ((b + (STORE_BLOCK_SIZE - 1)) / STORE_BLOCK_SIZE);
+}
+
+inline int
+MultiCacheBase::blocks_in_level(int level)
+{
+  int64_t sumbytes = 0;
+  int prevblocks = 0;
+  int b = 0;
+  for (int i = 0; i <= level; i++) {
+    sumbytes += buckets * ((int64_t) bucketsize[i]);
+    int sumblocks = bytes_to_blocks(sumbytes);
+    b = sumblocks - prevblocks;
+    prevblocks = sumblocks;
+  }
+  return b;
+}
+
+//
+// Initialize MultiCache
+// The outermost level of the cache contains ~aelements.
+// The higher levels (lower in number) contain fewer.
+//
+int
+MultiCacheBase::initialize(Store *astore, char *afilename,
+                           int aelements, int abuckets, int alevels,
+                           int level0_elements_per_bucket,
+                           int level1_elements_per_bucket, int level2_elements_per_bucket)
+{
+  int64_t size = 0;
+
+  Debug("multicache", "initializing %s with %d elements, %d buckets and %d levels", afilename, aelements, abuckets, alevels);
+  ink_assert(alevels < 4);
+  levels = alevels;
+  elementsize = get_elementsize();
+  totalelements = 0;
+  nominal_elements = aelements;
+  buckets = abuckets;
+
+  ink_strlcpy(filename, afilename, sizeof(filename));
+  //
+  //  Allocate level 2 as the outermost
+  //
+  if (levels > 2) {
+    if (!buckets) {
+      buckets = aelements / level2_elements_per_bucket;
+      if (buckets < MULTI_CACHE_PARTITIONS)
+        buckets = MULTI_CACHE_PARTITIONS;
+    }
+    if (levels == 3)
+      level2_elements_per_bucket = aelements / buckets;
+    elements[2] = level2_elements_per_bucket;
+    totalelements += buckets * level2_elements_per_bucket;
+    bucketsize[2] = elementsize * level2_elements_per_bucket;
+    size += (int64_t) bucketsize[2] * (int64_t) buckets;
+
+    if (!(level2_elements_per_bucket / level1_elements_per_bucket)) {
+      Warning("Size change too large, unable to reconfigure");
+      return -1;
+    }
+
+    aelements /= (level2_elements_per_bucket / level1_elements_per_bucket);
+  }
+  //
+  //  Allocate level 1
+  //
+  if (levels > 1) {
+    if (!buckets) {
+      buckets = aelements / level1_elements_per_bucket;
+      if (buckets < MULTI_CACHE_PARTITIONS)
+        buckets = MULTI_CACHE_PARTITIONS;
+    }
+    if (levels == 2)
+      level1_elements_per_bucket = aelements / buckets;
+    elements[1] = level1_elements_per_bucket;
+    totalelements += buckets * level1_elements_per_bucket;
+    bucketsize[1] = elementsize * level1_elements_per_bucket;
+    size += (int64_t) bucketsize[1] * (int64_t) buckets;
+    if (!(level1_elements_per_bucket / level0_elements_per_bucket)) {
+      Warning("Size change too large, unable to reconfigure");
+      return -2;
+    }
+    aelements /= (level1_elements_per_bucket / level0_elements_per_bucket);
+  }
+  //
+  //  Allocate level 0
+  //
+  if (!buckets) {
+    buckets = aelements / level0_elements_per_bucket;
+    if (buckets < MULTI_CACHE_PARTITIONS)
+      buckets = MULTI_CACHE_PARTITIONS;
+  }
+  if (levels == 1)
+    level0_elements_per_bucket = aelements / buckets;
+  elements[0] = level0_elements_per_bucket;
+  totalelements += buckets * level0_elements_per_bucket;
+  bucketsize[0] = elementsize * level0_elements_per_bucket;
+  size += (int64_t) bucketsize[0] * (int64_t) buckets;
+
+  buckets_per_partitionF8 = (buckets << 8) / MULTI_CACHE_PARTITIONS;
+  ink_release_assert(buckets_per_partitionF8);
+
+  unsigned int blocks = (size + (STORE_BLOCK_SIZE - 1)) / STORE_BLOCK_SIZE;
+
+  heap_size = int ((float)totalelements * estimated_heap_bytes_per_entry());
+  blocks += bytes_to_blocks(heap_size);
+
+  blocks += 1;                  // header
+  totalsize = (int64_t) blocks *(int64_t) STORE_BLOCK_SIZE;
+
+  Debug("multicache", "heap_size = %d, totalelements = %d, totalsize = %d", heap_size, totalelements, totalsize);
+
+  //
+  //  Spread alloc from the store (using storage that can be mmapped)
+  //
+  if (store)
+    delete store;
+  store = new Store;
+  astore->spread_alloc(*store, blocks, true);
+  unsigned int got = store->total_blocks();
+
+  if (got < blocks) {
+    astore->free(*store);
+    delete store;
+    store = NULL;
+    Warning("Configured store too small, unable to reconfigure");
+    return -3;
+  }
+  totalsize = (STORE_BLOCK_SIZE) * blocks;
+
+  level_offset[1] = buckets * bucketsize[0];
+  level_offset[2] = buckets * bucketsize[1] + level_offset[1];
+
+  if (lowest_level_data)
+    delete[]lowest_level_data;
+  lowest_level_data = new char[lowest_level_data_size()];
+  ink_assert(lowest_level_data);
+  memset(lowest_level_data, 0xFF, lowest_level_data_size());
+
+  return got;
+}
+
+char *
+MultiCacheBase::mmap_region(int blocks, int *fds, char *cur, bool private_flag, int zero_fill)
+{
+  if (!blocks)
+    return cur;
+  int p = 0;
+  char *res = 0;
+  for (unsigned i = 0; i < store->n_disks; i++) {
+    unsigned int target = blocks / (store->n_disks - i);
+    unsigned int following = store->total_blocks(i + 1);
+    if (blocks - target > following)
+      target = blocks - following;
+    Span *ds = store->disk[i];
+    for (int j = 0; j < store->disk[i]->paths(); j++) {
+      Span *d = ds->nth(j);
+
+      ink_assert(d->is_mmapable());
+
+      if (target && d->blocks) {
+        int b = d->blocks;
+        if (d->blocks > target)
+          b = target;
+        d->blocks -= b;
+        unsigned int nbytes = b * STORE_BLOCK_SIZE;
+        int fd = fds[p] ? fds[p] : zero_fill;
+        ink_assert(-1 != fd);
+        int flags = private_flag ? MAP_PRIVATE : MAP_SHARED_MAP_NORESERVE;
+
+        if (cur)
+          res = (char *) mmap(cur, nbytes, PROT_READ | PROT_WRITE, MAP_FIXED | flags, fd, d->offset * STORE_BLOCK_SIZE);
+        else
+          res = (char *) mmap(cur, nbytes, PROT_READ | PROT_WRITE, flags, fd, d->offset * STORE_BLOCK_SIZE);
+
+        d->offset += b;
+
+        if (res == NULL || res == (caddr_t) MAP_FAILED)
+          return NULL;
+        ink_assert(!cur || res == cur);
+        cur = res + nbytes;
+        blocks -= b;
+      }
+      p++;
+    }
+  }
+  return blocks ? 0 : cur;
+}
+
+void
+MultiCacheBase::reset()
+{
+  if (store)
+    delete store;
+  store = 0;
+  if (lowest_level_data)
+    delete[]lowest_level_data;
+  lowest_level_data = 0;
+  if (data)
+    unmap_data();
+  data = 0;
+}
+
+int
+MultiCacheBase::unmap_data()
+{
+  int res = 0;
+  if (data) {
+    res = munmap(data, totalsize);
+    data = NULL;
+    return res;
+  }
+  return 0;
+}
+
+int
+MultiCacheBase::mmap_data(bool private_flag, bool zero_fill)
+{
+  int fds[MULTI_CACHE_MAX_FILES] = { 0 };
+  int n_fds = 0;
+
+  // open files
+  //
+  if (!store || !store->n_disks)
+    goto Lalloc;
+  for (unsigned i = 0; i < store->n_disks; i++) {
+    Span *ds = store->disk[i];
+    for (int j = 0; j < store->disk[i]->paths(); j++) {
+      char path[PATH_NAME_MAX + 1];
+      Span *d = ds->nth(j);
+      int r = d->path(filename, NULL, path, PATH_NAME_MAX);
+      if (r < 0) {
+        Warning("filename too large '%s'", filename);
+        goto Labort;
+      }
+      fds[n_fds] = socketManager.open(path, O_RDWR | O_CREAT, 0644);
+      if (fds[n_fds] < 0) {
+        if (!zero_fill) {
+          Warning("unable to open file '%s': %d, %s", path, errno, strerror(errno));
+          goto Lalloc;
+        }
+        fds[n_fds] = 0;
+      }
+      if (!d->file_pathname) {
+        struct stat fd_stat;
+
+        if (fstat(fds[n_fds], &fd_stat) < 0) {
+          Warning("unable to stat file '%s'", path);
+          goto Lalloc;
+        } else {
+          int64_t size = (off_t)(d->blocks * STORE_BLOCK_SIZE);
+
+          if (fd_stat.st_size != size) {
+            int err = ink_file_fd_zerofill(fds[n_fds], size);
+
+            if (err != 0) {
+              Warning("unable to set file '%s' size to %" PRId64 ": %d, %s", path, size, err, strerror(err));
+              goto Lalloc;
+            }
+          }
+        }
+      }
+      n_fds++;
+    }
+  }
+
+  data = 0;
+
+
+  // mmap levels
+  //
+  {
+    // make a copy of the store
+    Store tStore;
+    store->dup(tStore);
+    Store *saved = store;
+    store = &tStore;
+
+    char *cur = 0;
+    int fd = -1;
+
+// find a good address to start
+#if !defined(darwin)
+    fd = socketManager.open("/dev/zero", O_RDONLY, 0645);
+    if (fd < 0) {
+      store = saved;
+      Warning("unable to open /dev/zero: %d, %s", errno, strerror(errno));
+      goto Labort;
+    }
+#endif
+
+    // lots of useless stuff
+#if defined(darwin)
+    cur = (char *) mmap(0, totalsize, PROT_READ, MAP_SHARED_MAP_NORESERVE | MAP_ANON, -1, 0);
+#else
+    cur = (char *) mmap(0, totalsize, PROT_READ, MAP_SHARED_MAP_NORESERVE, fd, 0);
+#endif
+    if (cur == NULL || cur == (caddr_t) MAP_FAILED) {
+      store = saved;
+#if defined(darwin)
+      Warning("unable to mmap anonymous region for %u bytes: %d, %s", totalsize, errno, strerror(errno));
+#else
+      Warning("unable to mmap /dev/zero for %u bytes: %d, %s", totalsize, errno, strerror(errno));
+      close(fd);
+#endif
+      goto Labort;
+    }
+    if (munmap(cur, totalsize)) {
+      store = saved;
+#if defined(darwin)
+      Warning("unable to munmap anonymous region for %u bytes: %d, %s", totalsize, errno, strerror(errno));
+#else
+      Warning("unable to munmap /dev/zero for %u bytes: %d, %s", totalsize, errno, strerror(errno));
+      close(fd);
+#endif
+      goto Labort;
+    }
+    data = cur;
+
+    cur = mmap_region(blocks_in_level(0), fds, cur, private_flag, fd);
+    if (!cur) {
+      store = saved;
+      goto Labort;
+    }
+    if (levels > 1)
+      cur = mmap_region(blocks_in_level(1), fds, cur, private_flag, fd);
+    if (!cur) {
+      store = saved;
+      goto Labort;
+    }
+    if (levels > 2)
+      cur = mmap_region(blocks_in_level(2), fds, cur, private_flag, fd);
+    if (!cur) {
+      store = saved;
+      goto Labort;
+    }
+
+    if (heap_size) {
+      heap = cur;
+      cur = mmap_region(bytes_to_blocks(heap_size), fds, cur, private_flag, fd);
+      if (!cur) {
+        store = saved;
+        goto Labort;
+      }
+    }
+    mapped_header = (MultiCacheHeader *) cur;
+    if (!mmap_region(1, fds, cur, private_flag, fd)) {
+      store = saved;
+      goto Labort;
+    }
+#if !defined(darwin)
+    ink_assert(!socketManager.close(fd));
+#endif
+    store = saved;
+  }
+
+
+  for (int i = 0; i < n_fds; i++) {
+    if (fds[i] >= 0)
+      ink_assert(!socketManager.close(fds[i]));
+  }
+
+  return 0;
+Lalloc:
+  {
+    free(data);
+    char *cur = 0;
+
+    data = (char *)ats_memalign(ats_pagesize(), totalsize);
+    cur = data + STORE_BLOCK_SIZE * blocks_in_level(0);
+    if (levels > 1)
+      cur = data + STORE_BLOCK_SIZE * blocks_in_level(1);
+    if (levels > 2)
+      cur = data + STORE_BLOCK_SIZE * blocks_in_level(2);
+    if (heap_size) {
+      heap = cur;
+      cur += bytes_to_blocks(heap_size) * STORE_BLOCK_SIZE;
+    }
+    mapped_header = (MultiCacheHeader *) cur;
+    for (int i = 0; i < n_fds; i++) {
+      if (fds[i] >= 0)
+        socketManager.close(fds[i]);
+    }
+
+    return 0;
+  }
+
+Labort:
+  for (int i = 0; i < n_fds; i++) {
+    if (fds[i] >= 0)
+      socketManager.close(fds[i]);
+  }
+
+  return -1;
+}
+
+void
+MultiCacheBase::clear()
+{
+  memset(data, 0, totalsize);
+  heap_used[0] = 8;
+  heap_used[1] = 8;
+  heap_halfspace = 0;
+  *mapped_header = *(MultiCacheHeader *) this;
+}
+
+void
+MultiCacheBase::clear_but_heap()
+{
+  memset(data, 0, totalelements * elementsize);
+  *mapped_header = *(MultiCacheHeader *) this;
+}
+
+int
+MultiCacheBase::read_config(const char *config_filename, Store & s, char *fn, int *pi, int *pbuck)
+{
+  int scratch;
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  char p[PATH_NAME_MAX + 1], buf[256];
+
+  Layout::relative_to(p, sizeof(p), rundir, config_filename);
+
+  int fd =::open(p, O_RDONLY);
+  if (fd < 0)
+    return 0;
+
+  if (ink_file_fd_readline(fd, sizeof(buf), buf) <= 0)
+    return -1;
+  // coverity[secure_coding]
+  if (sscanf(buf, "%d\n", pi ? pi : &scratch) != 1)
+    return -1;
+
+  if (ink_file_fd_readline(fd, sizeof(buf), buf) <= 0)
+    return -1;
+  // coverity[secure_coding]
+  if (sscanf(buf, "%d\n", pbuck ? pbuck : &scratch) != 1)
+    return -1;
+
+  if (ink_file_fd_readline(fd, sizeof(buf), buf) <= 0)
+    return -1;
+  // coverity[secure_coding]
+  if (sscanf(buf, "%d\n", &heap_size) != 1)
+    return -1;
+
+  if (s.read(fd, fn) < 0)
+    return -1;
+  ::close(fd);
+
+  return 1;
+}
+
+int
+MultiCacheBase::write_config(const char *config_filename, int nominal_size, int abuckets)
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  char p[PATH_NAME_MAX + 1], buf[256];
+  int fd, retcode = -1;
+
+  Layout::relative_to(p, sizeof(p), rundir, config_filename);
+
+  // XXX: Shouldn't that be 0664?
+  //
+  if ((fd =::open(p, O_CREAT | O_WRONLY | O_TRUNC, 0666)) >= 0) {
+    snprintf(buf, sizeof(buf) - 1, "%d\n%d\n%d\n", nominal_size, abuckets, heap_size);
+    buf[sizeof(buf) - 1] = 0;
+    if (ink_file_fd_writestring(fd, buf) != -1 && store->write(fd, filename) >= 0)
+      retcode = 0;
+    ::close(fd);
+  } else
+    Warning("unable to open '%s' for write: %d, %s", p, errno, strerror(errno));
+
+  return retcode;
+}
+
+int
+MultiCacheBase::open(Store *s, const char *config_filename, char *db_filename, int db_size,
+                     bool reconfigure, bool fix, bool silent)
+{
+  int ret = 0;
+  const char *err = NULL;
+  char *serr = NULL;
+  char t_db_filename[PATH_NAME_MAX];
+  int t_db_size = 0;
+  int t_db_buckets = 0;
+  int change = 0;
+
+  t_db_filename[0] = 0;
+
+  // Set up cache
+  {
+    Store tStore;
+    int res = read_config(config_filename, tStore, t_db_filename, &t_db_size, &t_db_buckets);
+
+    ink_assert(store_verify(&tStore));
+    if (res < 0)
+      goto LfailRead;
+    if (!res) {
+      if (!reconfigure || !db_filename || !db_size)
+        goto LfailConfig;
+      if (initialize(s, db_filename, db_size) <= 0)
+        goto LfailInit;
+      write_config(config_filename, db_size, buckets);
+      if (mmap_data() < 0)
+        goto LfailMap;
+      clear();
+    } else {
+      // don't know how to rebuild from this problem
+      ink_assert(!db_filename || !strcmp(t_db_filename, db_filename));
+      if (!db_filename)
+        db_filename = t_db_filename;
+
+      // Has the size changed?
+      change = (db_size >= 0) ? (db_size - t_db_size) : 0;
+      if (db_size < 0)
+        db_size = t_db_size;
+      if (change && !reconfigure)
+        goto LfailConfig;
+
+      Store cStore;
+      tStore.dup(cStore);
+
+      // Try to get back our storage
+      Store diff;
+
+      s->try_realloc(cStore, diff);
+      if (diff.n_disks && !reconfigure)
+        goto LfailConfig;
+
+      // Do we need to do a reconfigure?
+      if (diff.n_disks || change) {
+        // find a new store to old the amount of space we need
+        int delta = change;
+
+        if (diff.n_disks)
+          delta += diff.total_blocks();
+
+        if (delta) {
+          if (delta > 0) {
+            Store freeStore;
+            stealStore(freeStore, delta);
+            Store more;
+            freeStore.spread_alloc(more, delta);
+            if (delta > (int) more.total_blocks())
+              goto LfailReconfig;
+            Store more_diff;
+            s->try_realloc(more, more_diff);
+            if (more_diff.n_disks)
+              goto LfailReconfig;
+            cStore.add(more);
+            if (more.clear(db_filename, false) < 0)
+              goto LfailReconfig;
+          }
+          if (delta < 0) {
+            Store removed;
+            cStore.spread_alloc(removed, -delta);
+          }
+        }
+        cStore.sort();
+        if (initialize(&cStore, db_filename, db_size, t_db_buckets) <= 0)
+          goto LfailInit;
+
+        ink_assert(store_verify(store));
+
+        if (write_config(config_filename, db_size, buckets) < 0)
+          goto LfailWrite;
+
+        ink_assert(store_verify(store));
+
+        //  rebuild
+        MultiCacheBase *old = dup();
+        if (old->initialize(&tStore, t_db_filename, t_db_size, t_db_buckets) <= 0) {
+          delete old;
+          goto LfailInit;
+        }
+
+        if (rebuild(*old)) {
+          delete old;
+          goto LfailRebuild;
+        }
+        ink_assert(store_verify(store));
+        delete old;
+
+      } else {
+        if (initialize(&tStore, db_filename, db_size, t_db_buckets) <= 0)
+          goto LfailFix;
+        ink_assert(store_verify(store));
+        if (mmap_data() < 0)
+          goto LfailMap;
+        if (!verify_header())
+          goto LheaderCorrupt;
+        *(MultiCacheHeader *) this = *mapped_header;
+        ink_assert(store_verify(store));
+
+        if (fix)
+          if (check(config_filename, true) < 0)
+            goto LfailFix;
+      }
+    }
+  }
+
+  if (store)
+    ink_assert(store_verify(store));
+Lcontinue:
+  return ret;
+
+LheaderCorrupt:
+  err = "header missing/corrupt";
+  goto Lfail;
+
+LfailWrite:
+  err = "unable to write";
+  serr = strerror(errno);
+  goto Lfail;
+
+LfailRead:
+  err = "unable to read";
+  serr = strerror(errno);
+  goto Lfail;
+
+LfailInit:
+  err = "unable to initialize database (too little storage)\n";
+  goto Lfail;
+
+LfailConfig:
+  err = "configuration changed";
+  goto Lfail;
+
+LfailReconfig:
+  err = "unable to reconfigure";
+  goto Lfail;
+
+LfailRebuild:
+  err = "unable to rebuild";
+  goto Lfail;
+
+LfailFix:
+  err = "unable to fix";
+  goto Lfail;
+
+LfailMap:
+  err = "unable to mmap";
+  serr = strerror(errno);
+  goto Lfail;
+
+Lfail:
+  {
+    unmap_data();
+    if (!silent) {
+      char msg[PATH_NAME_MAX + 1024];
+      if (reconfigure) {
+        snprintf(msg, PATH_NAME_MAX + 1024, "%s: [%s] %s: disabling database\n"
+                     "You may need to 'reconfigure' your cache manually.  Please refer to\n"
+                     "the 'Configuration' chapter in the manual.", err, config_filename, serr ? serr : "");
+      } else {
+        snprintf(msg, PATH_NAME_MAX + 1024, "%s: [%s] %s: reinitializing database", err, config_filename,
+                     serr ? serr : "");
+      }
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, msg);
+    }
+  }
+  ret = -1;
+  goto Lcontinue;
+}
+
+bool
+MultiCacheBase::verify_header()
+{
+  return
+    mapped_header->magic == magic &&
+    mapped_header->version.ink_major == version.ink_major &&
+    mapped_header->version.ink_minor == version.ink_minor &&
+    mapped_header->levels == levels &&
+    mapped_header->tag_bits == tag_bits &&
+    mapped_header->max_hits == max_hits &&
+    mapped_header->elementsize == elementsize &&
+    mapped_header->buckets == buckets &&
+    mapped_header->level_offset[0] == level_offset[0] &&
+    mapped_header->level_offset[1] == level_offset[1] &&
+    mapped_header->level_offset[2] == level_offset[2] &&
+    mapped_header->elements[0] == elements[0] &&
+    mapped_header->elements[1] == elements[1] &&
+    mapped_header->elements[2] == elements[2] &&
+    mapped_header->bucketsize[0] == bucketsize[0] &&
+    mapped_header->bucketsize[1] == bucketsize[1] &&
+    mapped_header->bucketsize[2] == bucketsize[2] &&
+    mapped_header->totalelements == totalelements &&
+    mapped_header->totalsize == totalsize && mapped_header->nominal_elements == nominal_elements;
+}
+
+void
+MultiCacheBase::print_info(FILE *fp)
+{                               // STDIO OK
+  fprintf(fp, "    Elements:       %-10d\n", totalelements);
+  fprintf(fp, "    Size (bytes):   %-10u\n", totalsize);
+}
+
+
+//
+//  We need to preserve the buckets
+// while moving the existing data into the new locations.
+//
+// if data == NULL we are rebuilding (as opposed to check or fix)
+//
+int
+MultiCacheBase::rebuild(MultiCacheBase & old, int kind)
+{
+  char *new_data = 0;
+
+  ink_assert(store_verify(store));
+  ink_assert(store_verify(old.store));
+
+  // map in a chunk of space to use as scratch (check)
+  // or to copy the database to.
+  int fd = socketManager.open("/dev/zero", O_RDONLY);
+  if (fd < 0) {
+    Warning("unable to open /dev/zero: %d, %s", errno, strerror(errno));
+    return -1;
+  }
+
+  new_data = (char *) mmap(0, old.totalsize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+
+  ink_assert(data != new_data);
+  if (new_data == NULL || new_data == (caddr_t) MAP_FAILED) {
+    Warning("unable to mmap /dev/zero for %u bytes: %d, %s", totalsize,errno, strerror(errno));
+    return -1;
+  }
+  ::close(fd);
+  // if we are rebuilding get the original data
+
+  if (!data) {
+    ink_assert(kind == MC_REBUILD);
+    if (old.mmap_data(true, true) < 0)
+      return -1;
+    memcpy(new_data, old.data, old.totalsize);
+    old.unmap_data();
+    // now map the new location
+    if (mmap_data() < 0)
+      return -1;
+    // old.data is the copy
+    old.data = new_data;
+  } else {
+    ink_assert(kind == MC_REBUILD_CHECK || kind == MC_REBUILD_FIX);
+    if (kind == MC_REBUILD_CHECK) {
+      // old.data is the original, data is the copy
+      old.data = data;
+      data = new_data;
+    } else {
+      memcpy(new_data, data, old.totalsize);
+      // old.data is the copy, data is the original
+      old.data = new_data;
+    }
+  }
+
+  ink_assert(buckets == old.buckets);
+
+  FILE *diag_output_fp = stderr;
+
+  RebuildMC r;
+
+  r.data = old.data;
+
+  r.rebuild = kind == MC_REBUILD;
+  r.check = kind == MC_REBUILD_CHECK;
+  r.fix = kind == MC_REBUILD_FIX;
+
+  r.deleted = 0;
+  r.backed = 0;
+  r.duplicates = 0;
+  r.stale = 0;
+  r.corrupt = 0;
+  r.good = 0;
+  r.total = 0;
+
+  if (r.rebuild)
+    fprintf(diag_output_fp, "New:\n");
+  print_info(diag_output_fp);
+  if (r.rebuild || r.fix) {
+    fprintf(diag_output_fp, "Old:\n");
+    old.print_info(diag_output_fp);
+    clear_but_heap();
+  }
+
+  fprintf(diag_output_fp, "    [processing element.. ");
+
+  int scan = 0;
+  for (int l = old.levels - 1; l >= 0; l--)
+    for (int b = 0; b < old.buckets; b++) {
+      r.partition = partition_of_bucket(b);
+      for (int e = 0; e < old.elements[l]; e++) {
+        scan++;
+        if (!(scan & 0x7FFF))
+          fprintf(diag_output_fp, "%d ", scan);
+        char *x = old.data + old.level_offset[l] + b * old.bucketsize[l] + e * elementsize;
+        rebuild_element(b, x, r);
+      }
+    }
+  if (scan & 0x7FFF)
+    printf("done]\n");
+  if (r.rebuild || r.fix)
+    for (int p = 0; p < MULTI_CACHE_PARTITIONS; p++)
+      sync_partition(p);
+
+  fprintf(diag_output_fp, "    Usage Summary\n");
+  fprintf(diag_output_fp, "\tTotal:      %-10d\n", r.total);
+  if (r.good)
+    fprintf(diag_output_fp, "\tGood:       %.2f%% (%d)\n", r.total ? ((r.good * 100.0) / r.total) : 0, r.good);
+  if (r.deleted)
+    fprintf(diag_output_fp, "\tDeleted:    %5.2f%% (%d)\n",
+            r.deleted ? ((r.deleted * 100.0) / r.total) : 0.0, r.deleted);
+  if (r.backed)
+    fprintf(diag_output_fp, "\tBacked:     %5.2f%% (%d)\n", r.backed ? ((r.backed * 100.0) / r.total) : 0.0, r.backed);
+  if (r.duplicates)
+    fprintf(diag_output_fp, "\tDuplicates: %5.2f%% (%d)\n",
+            r.duplicates ? ((r.duplicates * 100.0) / r.total) : 0.0, r.duplicates);
+  if (r.stale)
+    fprintf(diag_output_fp, "\tStale:      %5.2f%% (%d)\n", r.stale ? ((r.stale * 100.0) / r.total) : 0.0, r.stale);
+  if (r.corrupt)
+    fprintf(diag_output_fp, "\tCorrupt:    %5.2f%% (%d)\n",
+            r.corrupt ? ((r.corrupt * 100.0) / r.total) : 0.0, r.corrupt);
+
+  old.reset();
+
+  return 0;
+}
+
+int
+MultiCacheBase::check(const char *config_filename, bool fix)
+{
+  //  rebuild
+  Store tStore;
+  char t_db_filename[PATH_NAME_MAX];
+  t_db_filename[0] = 0;
+  int t_db_size = 0, t_db_buckets = 0;
+  if (read_config(config_filename, tStore, t_db_filename, &t_db_size, &t_db_buckets) <= 0)
+    return -1;
+
+  MultiCacheBase *old = dup();
+
+  if (old->initialize(&tStore, filename, nominal_elements, buckets) <= 0) {
+    delete old;
+    return -1;
+  }
+
+  int res = rebuild(*old, fix ? MC_REBUILD_FIX : MC_REBUILD_CHECK);
+  delete old;
+  return res;
+}
+
+int
+MultiCacheBase::sync_heap(int part)
+{
+  if (heap_size) {
+    int b_per_part = heap_size / MULTI_CACHE_PARTITIONS;
+    if (ats_msync(data + level_offset[2] + buckets * bucketsize[2] +
+                   b_per_part * part, b_per_part, data + totalsize, MS_SYNC) < 0)
+      return -1;
+  }
+  return 0;
+}
+
+//
+// Sync a single partition
+//
+// Since we delete from the higher levels
+// and insert into the lower levels,
+// start with the higher levels to reduce the risk of duplicates.
+//
+int
+MultiCacheBase::sync_partition(int partition)
+{
+  int res = 0;
+  int b = first_bucket_of_partition(partition);
+  int n = buckets_of_partition(partition);
+  // L3
+  if (levels > 2) {
+    if (ats_msync(data + level_offset[2] + b * bucketsize[2], n * bucketsize[2], data + totalsize, MS_SYNC) < 0)
+      res = -1;
+  }
+  // L2
+  if (levels > 1) {
+    if (ats_msync(data + level_offset[1] + b * bucketsize[1], n * bucketsize[1], data + totalsize, MS_SYNC) < 0)
+      res = -1;
+  }
+  // L1
+  if (ats_msync(data + b * bucketsize[0], n * bucketsize[0], data + totalsize, MS_SYNC) < 0)
+    res = -1;
+  return res;
+}
+
+int
+MultiCacheBase::sync_header()
+{
+  *mapped_header = *(MultiCacheHeader *) this;
+  return ats_msync((char *) mapped_header, STORE_BLOCK_SIZE, (char *) mapped_header + STORE_BLOCK_SIZE, MS_SYNC);
+}
+
+int
+MultiCacheBase::sync_all()
+{
+  int res = 0, i = 0;
+  for (i = 0; i < MULTI_CACHE_PARTITIONS; i++)
+    if (sync_heap(i) < 0)
+      res = -1;
+  for (i = 0; i < MULTI_CACHE_PARTITIONS; i++)
+    if (sync_partition(i) < 0)
+      res = -1;
+  if (sync_header())
+    res = -1;
+  return res;
+}
+
+//
+// Syncs MulitCache
+//
+struct MultiCacheSync;
+typedef int (MultiCacheSync::*MCacheSyncHandler) (int, void *);
+
+struct MultiCacheSync: public Continuation
+{
+  int partition;
+  MultiCacheBase *mc;
+  Continuation *cont;
+  int before_used;
+
+  int heapEvent(int event, Event *e)
+  {
+    if (!partition) {
+      before_used = mc->heap_used[mc->heap_halfspace];
+      mc->header_snap = *(MultiCacheHeader *) mc;
+    }
+    if (partition < MULTI_CACHE_PARTITIONS)
+    {
+      mc->sync_heap(partition++);
+      e->schedule_imm();
+      return EVENT_CONT;
+    }
+    *mc->mapped_header = mc->header_snap;
+    ink_assert(!ats_msync((char *) mc->mapped_header, STORE_BLOCK_SIZE,
+                           (char *) mc->mapped_header + STORE_BLOCK_SIZE, MS_SYNC));
+    partition = 0;
+    SET_HANDLER((MCacheSyncHandler) & MultiCacheSync::mcEvent);
+    return mcEvent(event, e);
+  }
+
+  int mcEvent(int event, Event *e)
+  {
+    (void) event;
+    if (partition >= MULTI_CACHE_PARTITIONS) {
+      cont->handleEvent(MULTI_CACHE_EVENT_SYNC, 0);
+      Debug("multicache", "MultiCacheSync done (%d, %d)", mc->heap_used[0], mc->heap_used[1]);
+      delete this;
+      return EVENT_DONE;
+    }
+    mc->fixup_heap_offsets(partition, before_used);
+    mc->sync_partition(partition);
+    partition++;
+    mutex = e->ethread->mutex;
+    SET_HANDLER((MCacheSyncHandler) & MultiCacheSync::pauseEvent);
+    e->schedule_in(MAX(MC_SYNC_MIN_PAUSE_TIME, HRTIME_SECONDS(hostdb_sync_frequency - 5) / MULTI_CACHE_PARTITIONS));
+    return EVENT_CONT;
+  }
+
+  int pauseEvent(int event, Event *e)
+  {
+    (void) event;
+    (void) e;
+    if (partition < MULTI_CACHE_PARTITIONS)
+      mutex = mc->locks[partition];
+    else
+      mutex = cont->mutex;
+    SET_HANDLER((MCacheSyncHandler) & MultiCacheSync::mcEvent);
+    e->schedule_imm();
+    return EVENT_CONT;
+  }
+
+MultiCacheSync(Continuation *acont, MultiCacheBase *amc):
+  Continuation(amc->locks[0]), partition(0), mc(amc), cont(acont), before_used(0) {
+    mutex = mc->locks[partition];
+    SET_HANDLER((MCacheSyncHandler) & MultiCacheSync::heapEvent);
+  }
+};
+
+//
+// Heap code
+//
+
+UnsunkPtrRegistry *
+MultiCacheBase::fixup_heap_offsets(int partition, int before_used, UnsunkPtrRegistry *r, int base)
+{
+  if (!r)
+    r = &unsunk[partition];
+  bool found = 0;
+  for (int i = 0; i < r->n; i++) {
+    UnsunkPtr & p = r->ptrs[i];
+    if (p.offset) {
+      Debug("multicache", "fixup p.offset %d offset %d %" PRId64 " part %d",
+            p.offset, *p.poffset, (int64_t)((char *) p.poffset - data), partition);
+      if (*p.poffset == -(i + base) - 1) {
+        if (halfspace_of(p.offset) != heap_halfspace) {
+          ink_assert(0);
+          *p.poffset = 0;
+        } else {
+          if (p.offset < before_used) {
+            *p.poffset = p.offset + 1;
+            ink_assert(*p.poffset);
+          } else
+            continue;
+        }
+      } else {
+        Debug("multicache",
+              "not found %" PRId64 " i %d base %d *p.poffset = %d",
+              (int64_t)((char *) p.poffset - data), i, base, *p.poffset);
+      }
+      p.offset = 0;
+      p.poffset = (int *) r->next_free;
+      r->next_free = &p;
+      found = true;
+    }
+  }
+  if (r->next) {
+    int s = MULTI_CACHE_UNSUNK_PTR_BLOCK_SIZE(totalelements);
+    r->next = fixup_heap_offsets(partition, before_used, r->next, base + s);
+  }
+  if (!r->next && !found && r != &unsunk[partition]) {
+    delete r;
+    return NULL;
+  }
+  return r;
+}
+
+struct OffsetTable
+{
+  int new_offset;
+  int *poffset;
+};
+
+struct MultiCacheHeapGC;
+typedef int (MultiCacheHeapGC::*MCacheHeapGCHandler) (int, void *);
+struct MultiCacheHeapGC: public Continuation
+{
+  Continuation *cont;
+  MultiCacheBase *mc;
+  int partition;
+  int n_offsets;
+  OffsetTable *offset_table;
+
+  int startEvent(int event, Event *e)
+  {
+    (void) event;
+    if (partition < MULTI_CACHE_PARTITIONS)
+    {
+
+      // copy heap data
+
+      char *before = mc->heap + mc->heap_used[mc->heap_halfspace];
+        mc->copy_heap(partition, this);
+      char *after = mc->heap + mc->heap_used[mc->heap_halfspace];
+
+      // sync new heap data and header (used)
+
+      if (after - before > 0)
+      {
+        ink_assert(!ats_msync(before, after - before, mc->heap + mc->totalsize, MS_SYNC));
+        ink_assert(!ats_msync((char *) mc->mapped_header, STORE_BLOCK_SIZE,
+                               (char *) mc->mapped_header + STORE_BLOCK_SIZE, MS_SYNC));
+      }
+      // update table to point to new entries
+
+      for (int i = 0; i < n_offsets; i++) {
+        int *i1, i2;
+        // BAD CODE GENERATION ON THE ALPHA
+        //*(offset_table[i].poffset) = offset_table[i].new_offset + 1;
+        i1 = offset_table[i].poffset;
+        i2 = offset_table[i].new_offset + 1;
+        *i1 = i2;
+      }
+      n_offsets = 0;
+      mc->sync_partition(partition);
+      partition++;
+      if (partition < MULTI_CACHE_PARTITIONS)
+        mutex = mc->locks[partition];
+      else
+        mutex = cont->mutex;
+      e->schedule_in(MAX(MC_SYNC_MIN_PAUSE_TIME, HRTIME_SECONDS(hostdb_sync_frequency - 5) / MULTI_CACHE_PARTITIONS));
+      return EVENT_CONT;
+    }
+    mc->heap_used[mc->heap_halfspace ? 0 : 1] = 8;      // skip 0
+    cont->handleEvent(MULTI_CACHE_EVENT_SYNC, 0);
+    Debug("multicache", "MultiCacheHeapGC done");
+    delete this;
+    return EVENT_DONE;
+  }
+
+MultiCacheHeapGC(Continuation *acont, MultiCacheBase *amc):
+  Continuation(amc->locks[0]), cont(acont), mc(amc), partition(0), n_offsets(0) {
+
+    SET_HANDLER((MCacheHeapGCHandler) & MultiCacheHeapGC::startEvent);
+    offset_table = (OffsetTable *)ats_malloc(sizeof(OffsetTable) *
+        ((mc->totalelements / MULTI_CACHE_PARTITIONS) + mc->elements[mc->levels - 1] * 3 + 1));
+    // flip halfspaces
+    mutex = mc->locks[partition];
+    mc->heap_halfspace = mc->heap_halfspace ? 0 : 1;
+  }
+  ~MultiCacheHeapGC() {
+    ats_free(offset_table);
+  }
+};
+
+void
+MultiCacheBase::sync_partitions(Continuation *cont)
+{
+  // don't try to sync if we were not correctly initialized
+  if (data && mapped_header) {
+    if (heap_used[heap_halfspace] > halfspace_size() * MULTI_CACHE_HEAP_HIGH_WATER)
+      eventProcessor.schedule_imm(new MultiCacheHeapGC(cont, this), ET_CALL);
+    else
+      eventProcessor.schedule_imm(new MultiCacheSync(cont, this), ET_CALL);
+  }
+}
+
+void
+MultiCacheBase::copy_heap_data(char *src, int s, int *pi, int partition, MultiCacheHeapGC *gc)
+{
+  char *dest = (char *) alloc(NULL, s);
+  Debug("multicache", "copy %p to %p", src, dest);
+  if (dest) {
+    memcpy(dest, src, s);
+    if (*pi < 0) {              // already in the unsunk ptr registry, ok to change there
+      UnsunkPtr *ptr = unsunk[partition].ptr(-*pi - 1);
+      if (ptr->poffset == pi)
+        ptr->offset = dest - heap;
+      else {
+        ink_assert(0);
+        *pi = 0;
+      }
+    } else {
+      gc->offset_table[gc->n_offsets].new_offset = dest - heap;
+      gc->offset_table[gc->n_offsets].poffset = pi;
+      gc->n_offsets++;
+    }
+  } else {
+    ink_assert(0);
+    *pi = 0;
+  }
+}
+
+UnsunkPtrRegistry::UnsunkPtrRegistry()
+:mc(NULL), n(0), ptrs(NULL), next_free(NULL), next(NULL)
+{
+}
+
+UnsunkPtrRegistry::~UnsunkPtrRegistry()
+{
+  ats_free(ptrs);
+}
+
+void
+UnsunkPtrRegistry::alloc_data()
+{
+  int bs = MULTI_CACHE_UNSUNK_PTR_BLOCK_SIZE(mc->totalelements);
+  size_t s = bs * sizeof(UnsunkPtr);
+  ptrs = (UnsunkPtr *)ats_malloc(s);
+  for (int i = 0; i < bs; i++) {
+    ptrs[i].offset = 0;
+    ptrs[i].poffset = (int *) &ptrs[i + 1];
+  }
+  ptrs[bs - 1].poffset = NULL;
+  next_free = ptrs;
+  n = bs;
+}
+
+UnsunkPtr *
+UnsunkPtrRegistry::alloc(int *poffset, int base)
+{
+  if (next_free) {
+    UnsunkPtr *res = next_free;
+    next_free = (UnsunkPtr *) next_free->poffset;
+    *poffset = -(base + (res - ptrs)) - 1;
+    ink_assert(*poffset);
+    return res;
+  } else {
+    if (!ptrs) {
+      alloc_data();
+      return alloc(poffset, base);
+    }
+    if (!next) {
+      next = new UnsunkPtrRegistry;
+      next->mc = mc;
+    }
+    int s = MULTI_CACHE_UNSUNK_PTR_BLOCK_SIZE(mc->totalelements);
+    return next->alloc(poffset, base + s);
+  }
+}
+
+void *
+MultiCacheBase::alloc(int *poffset, int asize)
+{
+  int h = heap_halfspace;
+  int size = (asize + MULTI_CACHE_HEAP_ALIGNMENT - 1) & ~(MULTI_CACHE_HEAP_ALIGNMENT - 1);
+  int o = ink_atomic_increment((int *) &heap_used[h], size);
+
+  if (o + size > halfspace_size()) {
+    ink_atomic_increment((int *) &heap_used[h], -size);
+    ink_assert(!"out of space");
+    if (poffset)
+      *poffset = 0;
+    return NULL;
+  }
+  int offset = (h ? halfspace_size() : 0) + o;
+  char *p = heap + offset;
+  if (poffset) {
+    int part = ptr_to_partition((char *) poffset);
+    if (part < 0)
+      return NULL;
+    UnsunkPtr *up = unsunk[part].alloc(poffset);
+    up->offset = offset;
+    up->poffset = poffset;
+    Debug("multicache", "alloc unsunk %d at %" PRId64 " part %d offset %d",
+          *poffset, (int64_t)((char *) poffset - data), part, offset);
+  }
+  return (void *) p;
+}
+
+UnsunkPtr *
+UnsunkPtrRegistry::ptr(int i)
+{
+  if (i >= n) {
+    if (!next)
+      return NULL;
+    else
+      return next->ptr(i - n);
+  } else {
+    if (!ptrs)
+      return NULL;
+    return &ptrs[i];
+  }
+}
+
+void *
+MultiCacheBase::ptr(int *poffset, int partition)
+{
+  int o = *poffset;
+  Debug("multicache", "ptr %" PRId64 " part %d %d", (int64_t)((char *) poffset - data), partition, o);
+  if (o > 0) {
+    if (!valid_offset(o)) {
+      ink_assert(!"bad offset");
+      *poffset = 0;
+      return NULL;
+    }
+    return (void *) (heap + o - 1);
+  }
+  if (!o)
+    return NULL;
+  UnsunkPtr *p = unsunk[partition].ptr(-o - 1);
+  if (!p)
+    return NULL;
+  if (p->poffset != poffset)
+    return NULL;
+  return (void *) (heap + p->offset);
+}
+
+void
+MultiCacheBase::update(int *poffset, int *old_poffset)
+{
+  int o = *poffset;
+  Debug("multicache", "updating %" PRId64 " %d", (int64_t)((char *) poffset - data), o);
+  if (o > 0) {
+    if (!valid_offset(o)) {
+      ink_assert(!"bad poffset");
+      *poffset = 0;
+    }
+    return;
+  }
+  if (!o)
+    return;
+
+  int part = ptr_to_partition((char *) poffset);
+
+  if (part < 0)
+    return;
+
+  UnsunkPtr *p = unsunk[part].ptr(-*old_poffset - 1);
+  if (!p || p->poffset != old_poffset) {
+    *poffset = 0;
+    return;
+  }
+  ink_assert(p->poffset != poffset);
+  UnsunkPtr *n = unsunk[part].alloc(poffset);
+  n->poffset = poffset;
+  n->offset = p->offset;
+}
+
+int
+MultiCacheBase::ptr_to_partition(char *ptr)
+{
+  int o = ptr - data;
+  if (o < level_offset[0])
+    return -1;
+  if (o < level_offset[1])
+    return partition_of_bucket((o - level_offset[0]) / bucketsize[0]);
+  if (o < level_offset[2])
+    return partition_of_bucket((o - level_offset[1]) / bucketsize[1]);
+  if (o < level_offset[2] + elements[2] * elementsize)
+    return partition_of_bucket((o - level_offset[2]) / bucketsize[2]);
+  return -1;
+}
+
+
+void
+stealStore(Store & s, int blocks)
+{
+  if (s.read_config())
+    return;
+  Store tStore;
+  MultiCacheBase dummy;
+  if (dummy.read_config("hostdb.config", tStore) > 0) {
+    Store dStore;
+    s.try_realloc(tStore, dStore);
+  }
+  tStore.delete_all();
+  if (dummy.read_config("dir.config", tStore) > 0) {
+    Store dStore;
+    s.try_realloc(tStore, dStore);
+  }
+  tStore.delete_all();
+  if (dummy.read_config("alt.config", tStore) > 0) {
+    Store dStore;
+    s.try_realloc(tStore, dStore);
+  }
+  // grab some end portion of some block... so as not to damage the
+  // pool header
+  for (unsigned d = 0; d < s.n_disks; ) {
+    Span *ds = s.disk[d];
+    while (ds) {
+      if (!blocks)
+        ds->blocks = 0;
+      else {
+        int b = blocks;
+        if ((int) ds->blocks < blocks)
+          b = ds->blocks;
+        if (ds->file_pathname)
+          ds->offset += (ds->blocks - b);
+        ds->blocks = b;
+        blocks -= b;
+      }
+      ds = ds->link.next;
+    }
+    d++;
+  }
+}
diff --git a/iocore/hostdb/P_HostDB.h b/iocore/hostdb/P_HostDB.h
new file mode 100644
index 00000000..1973597b
--- /dev/null
+++ b/iocore/hostdb/P_HostDB.h
@@ -0,0 +1,59 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_HostDB.h
+
+
+ ****************************************************************************/
+
+#ifndef _P_HostDB_h_
+#define _P_HostDB_h_
+
+#include "libts.h"
+
+#ifdef SPLIT_DNS
+#include "P_SplitDNS.h"
+#include "P_Cluster.h"
+#endif
+
+#include "P_EventSystem.h"
+
+#include "I_HostDB.h"
+
+// HostDB files
+#include "P_DNS.h"
+#include "P_MultiCache.h"
+#include "P_HostDBProcessor.h"
+
+
+#undef  HOSTDB_MODULE_VERSION
+#define HOSTDB_MODULE_VERSION makeModuleVersion(                 \
+                                    HOSTDB_MODULE_MAJOR_VERSION, \
+                                    HOSTDB_MODULE_MINOR_VERSION, \
+                                    PRIVATE_MODULE_HEADER)
+HostDBInfo *probe(ProxyMutex * mutex, HostDBMD5 const& md5, bool ignore_timeout);
+
+void make_md5(INK_MD5 & md5, const char *hostname, int len, int port, char const*pDNSServers, HostDBMark mark);
+#endif
diff --git a/iocore/hostdb/P_HostDBProcessor.h b/iocore/hostdb/P_HostDBProcessor.h
new file mode 100644
index 00000000..f3ee41e4
--- /dev/null
+++ b/iocore/hostdb/P_HostDBProcessor.h
@@ -0,0 +1,560 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+  P_HostDBProcessor.h
+ ****************************************************************************/
+
+#ifndef _P_HostDBProcessor_h_
+#define _P_HostDBProcessor_h_
+
+#include "I_HostDBProcessor.h"
+
+//
+// Data
+//
+
+extern int hostdb_enable;
+extern int hostdb_migrate_on_demand;
+extern int hostdb_cluster;
+extern int hostdb_cluster_round_robin;
+extern int hostdb_lookup_timeout;
+extern int hostdb_insert_timeout;
+extern int hostdb_re_dns_on_reload;
+
+// 0 = obey, 1 = ignore, 2 = min(X,ttl), 3 = max(X,ttl)
+enum
+  { TTL_OBEY, TTL_IGNORE, TTL_MIN, TTL_MAX };
+extern int hostdb_ttl_mode;
+
+extern unsigned int hostdb_current_interval;
+extern unsigned int hostdb_ip_stale_interval;
+extern unsigned int hostdb_ip_timeout_interval;
+extern unsigned int hostdb_ip_fail_timeout_interval;
+extern int hostdb_size;
+extern int hostdb_srv_enabled;
+extern char hostdb_filename[PATH_NAME_MAX + 1];
+
+//extern int hostdb_timestamp;
+extern int hostdb_sync_frequency;
+extern int hostdb_disable_reverse_lookup;
+
+// Static configuration information
+extern HostDBCache hostDB;
+
+/** Host DB record mark.
+
+    The records in the host DB are de facto segregated by roughly the
+    DNS query type. We use an intermediate type to provide a little flexibility
+    although the type is presumed to be a single byte.
+ */
+enum HostDBMark {
+  HOSTDB_MARK_GENERIC, ///< Anything that's not one of the other types.
+  HOSTDB_MARK_IPV4, ///< IPv4 / T_A
+  HOSTDB_MARK_IPV6, ///< IPv6 / T_AAAA
+  HOSTDB_MARK_SRV, ///< Service / T_SRV
+};
+/** Convert a HostDB @a mark to a string.
+    @return A static string.
+ */
+extern char const* string_for(HostDBMark mark);
+
+inline unsigned int HOSTDB_CLIENT_IP_HASH(
+  sockaddr const* lhs,
+  sockaddr const* rhs
+) {
+  unsigned int zret = ~static_cast<unsigned int>(0);
+  if (ats_ip_are_compatible(lhs,rhs)) {
+    if (ats_is_ip4(lhs)) {
+      in_addr_t ip1 = ats_ip4_addr_cast(lhs);
+      in_addr_t ip2 = ats_ip4_addr_cast(rhs);
+      zret = (ip1 >> 16) ^ ip1 ^ ip2 ^ (ip2 >> 16);
+    } else if (ats_is_ip6(lhs)) {
+      uint32_t const* ip1 = ats_ip_addr32_cast(lhs);
+      uint32_t const* ip2 = ats_ip_addr32_cast(rhs);
+      for ( int i = 0 ; i < 4 ; ++i, ++ip1, ++ip2 ) {
+        zret ^= (*ip1 >> 16) ^ *ip1 ^ *ip2 ^ (*ip2 >> 16);
+      }
+    }
+  }
+  return zret & 0xFFFF;
+}
+
+//
+// Constants
+//
+
+#define HOST_DB_HITS_BITS           3
+#define HOST_DB_TAG_BITS            56
+
+#define CONFIGURATION_HISTORY_PROBE_DEPTH   1
+
+// Bump this any time hostdb format is changed
+#define HOST_DB_CACHE_MAJOR_VERSION         3
+#define HOST_DB_CACHE_MINOR_VERSION         0
+// 2.2: IP family split 2.1 : IPv6
+
+#define DEFAULT_HOST_DB_FILENAME             "host.db"
+#define DEFAULT_HOST_DB_SIZE                 (1<<14)
+// Resolution of timeouts
+#define HOST_DB_TIMEOUT_INTERVAL             HRTIME_SECOND
+// Timeout DNS every 24 hours by default if ttl_mode is enabled
+#define HOST_DB_IP_TIMEOUT                   (24*60*60)
+// DNS entries should be revalidated every 12 hours
+#define HOST_DB_IP_STALE                     (12*60*60)
+// DNS entries which failed lookup, should be revalidated every hour
+#define HOST_DB_IP_FAIL_TIMEOUT              (60*60)
+
+//#define HOST_DB_MAX_INTERVAL                 (0x7FFFFFFF)
+#define HOST_DB_MAX_TTL                      (0x1FFFFF) //24 days
+
+//
+// Constants
+//
+
+// period to wait for a remote probe...
+#define HOST_DB_CLUSTER_TIMEOUT  HRTIME_MSECONDS(5000)
+#define HOST_DB_RETRY_PERIOD     HRTIME_MSECONDS(20)
+
+//#define TEST(_x) _x
+#define TEST(_x)
+
+
+#ifdef _HOSTDB_CC_
+template struct MultiCache <HostDBInfo >;
+#endif /* _HOSTDB_CC_ */
+
+struct ClusterMachine;
+struct HostEnt;
+struct ClusterConfiguration;
+
+// Stats
+enum HostDB_Stats
+{
+  hostdb_total_entries_stat,
+  hostdb_total_lookups_stat,
+  hostdb_total_hits_stat,       // D == total hits
+  hostdb_ttl_stat,              // D average TTL
+  hostdb_ttl_expires_stat,      // D == TTL Expires
+  hostdb_re_dns_on_reload_stat,
+  hostdb_bytes_stat,
+  HostDB_Stat_Count
+};
+
+
+struct RecRawStatBlock;
+extern RecRawStatBlock *hostdb_rsb;
+
+// Stat Macros
+
+#define HOSTDB_DEBUG_COUNT_DYN_STAT(_x, _y) \
+RecIncrRawStatCount(hostdb_rsb, mutex->thread_holding, (int)_x, _y)
+
+#define HOSTDB_INCREMENT_DYN_STAT(_x)  \
+RecIncrRawStatSum(hostdb_rsb, mutex->thread_holding, (int)_x, 1)
+
+#define HOSTDB_DECREMENT_DYN_STAT(_x) \
+RecIncrRawStatSum(hostdb_rsb, mutex->thread_holding, (int)_x, -1)
+
+#define HOSTDB_SUM_DYN_STAT(_x, _r) \
+RecIncrRawStatSum(hostdb_rsb, mutex->thread_holding, (int)_x, _r)
+
+#define HOSTDB_READ_DYN_STAT(_x, _count, _sum) do {\
+RecGetRawStatSum(hostdb_rsb, (int)_x, &_sum);          \
+RecGetRawStatCount(hostdb_rsb, (int)_x, &_count);         \
+} while (0)
+
+#define HOSTDB_SET_DYN_COUNT(_x, _count) \
+RecSetRawStatCount(hostdb_rsb, _x, _count);
+
+#define HOSTDB_INCREMENT_THREAD_DYN_STAT(_s, _t) \
+  RecIncrRawStatSum(hostdb_rsb, _t, (int) _s, 1);
+
+#define HOSTDB_DECREMENT_THREAD_DYN_STAT(_s, _t) \
+  RecIncrRawStatSum(hostdb_rsb, _t, (int) _s, -1);
+
+
+//
+// HostDBCache (Private)
+//
+struct HostDBCache: public MultiCache<HostDBInfo>
+{
+  int rebuild_callout(HostDBInfo * e, RebuildMC & r);
+  int start(int flags = 0);
+  MultiCacheBase *dup()
+  {
+    return new HostDBCache;
+  }
+
+  // This accounts for an average of 2 HostDBInfo per DNS cache (for round-robin etc.)
+  // In addition, we can do a padding for additional SRV records storage.
+  virtual size_t estimated_heap_bytes_per_entry() const { return sizeof(HostDBInfo) * 2 + 512 * hostdb_srv_enabled; }
+
+  Queue<HostDBContinuation, Continuation::Link_link> pending_dns[MULTI_CACHE_PARTITIONS];
+  Queue<HostDBContinuation, Continuation::Link_link> &pending_dns_for_hash(INK_MD5 & md5);
+  HostDBCache();
+};
+
+inline int
+HostDBRoundRobin::index_of(sockaddr const* ip) {
+  bool bad = (rrcount <= 0 || rrcount > HOST_DB_MAX_ROUND_ROBIN_INFO || good <= 0 || good > HOST_DB_MAX_ROUND_ROBIN_INFO);
+  if (bad) {
+    ink_assert(!"bad round robin size");
+    return -1;
+  }
+
+  for (int i = 0; i < good; i++) {
+    if (ats_ip_addr_eq(ip, info[i].ip())) {
+      return i;
+    }
+  }
+
+  return -1;
+}
+
+inline HostDBInfo*
+HostDBRoundRobin::find_ip(sockaddr const* ip) {
+  int idx = this->index_of(ip);
+  return idx < 0 ? NULL : &info[idx];
+}
+
+inline HostDBInfo*
+HostDBRoundRobin::select_next(sockaddr const* ip) {
+  HostDBInfo* zret = 0;
+  if (good > 1) {
+    int idx = this->index_of(ip);
+    if (idx >= 0) {
+      idx = (idx+1)%good;
+      zret = &info[idx];
+    }
+  }
+  return zret;
+}
+
+inline HostDBInfo *
+HostDBRoundRobin::find_target(const char *target) {
+  bool bad = (rrcount <= 0 || rrcount > HOST_DB_MAX_ROUND_ROBIN_INFO || good <= 0 || good > HOST_DB_MAX_ROUND_ROBIN_INFO);
+  if (bad) {
+    ink_assert(!"bad round robin size");
+    return NULL;
+  }
+
+  uint32_t key = makeHostHash(target);
+  for (int i = 0; i < good; i++) {
+    if (info[i].data.srv.key == key && !strcmp(target, info[i].srvname(this)))
+      return &info[i];
+  }
+  return NULL;
+}
+
+inline HostDBInfo *
+HostDBRoundRobin::select_best_http(sockaddr const* client_ip, ink_time_t now, int32_t fail_window)
+{
+  bool bad = (rrcount <= 0 || rrcount > HOST_DB_MAX_ROUND_ROBIN_INFO || good <= 0 || good > HOST_DB_MAX_ROUND_ROBIN_INFO);
+
+  if (bad) {
+    ink_assert(!"bad round robin size");
+    return NULL;
+  }
+
+  int best_any = 0;
+  int best_up = -1;
+
+  if (HostDBProcessor::hostdb_strict_round_robin) {
+    Debug("hostdb", "Using strict round robin");
+    best_up = current++ % good;
+  } else if (HostDBProcessor::hostdb_timed_round_robin > 0) {
+    Debug("hostdb", "Using timed round-robin for HTTP");
+    if ((now - timed_rr_ctime) > HostDBProcessor::hostdb_timed_round_robin) {
+      Debug("hostdb", "Timed interval expired.. rotating");
+      ++current;
+      timed_rr_ctime = now;
+    }
+    best_up = current % good;
+    Debug("hostdb", "Using %d for best_up", best_up);
+  } else {
+    Debug("hostdb", "Using default round robin");
+    unsigned int best_hash_any = 0;
+    unsigned int best_hash_up = 0;
+    sockaddr const* ip;
+    for (int i = 0; i < good; i++) {
+      ip = info[i].ip();
+      unsigned int h = HOSTDB_CLIENT_IP_HASH(client_ip, ip);
+      if (best_hash_any <= h) {
+        best_any = i;
+        best_hash_any = h;
+      }
+      if (info[i].app.http_data.last_failure == 0 ||
+          (unsigned int) (now - fail_window) > info[i].app.http_data.last_failure) {
+        // Entry is marked up
+        if (best_hash_up <= h) {
+          best_up = i;
+          best_hash_up = h;
+        }
+      } else {
+        // Entry is marked down.  Make sure some nasty clock skew
+        //  did not occur.  Use the retry time to set an upper bound
+        //  as to how far in the future we should tolerate bogus last
+        //  failure times.  This sets the upper bound that we would ever
+        //  consider a server down to 2*down_server_timeout
+        if (now + fail_window < (int32_t) (info[i].app.http_data.last_failure)) {
+#ifdef DEBUG
+          // because this region is mmaped, I cann't get anything
+          //   useful from the structure in core files,  therefore
+          //   copy the revelvant info to the stack so it will
+          //   be readble in the core
+          HostDBInfo current_info;
+          HostDBRoundRobin current_rr;
+          memcpy(&current_info, &info[i], sizeof(HostDBInfo));
+          memcpy(&current_rr, this, sizeof(HostDBRoundRobin));
+#endif
+          ink_assert(!"extreme clock skew");
+          info[i].app.http_data.last_failure = 0;
+        }
+      }
+    }
+  }
+
+  if (best_up != -1) {
+    ink_assert(best_up >= 0 && best_up < good);
+    return &info[best_up];
+  } else {
+    ink_assert(best_any >= 0 && best_any < good);
+    return &info[best_any];
+  }
+}
+
+inline HostDBInfo *
+HostDBRoundRobin::select_best_srv(char *target, InkRand *rand, ink_time_t now, int32_t fail_window)
+{
+  bool bad = (rrcount <= 0 || rrcount > HOST_DB_MAX_ROUND_ROBIN_INFO || good <= 0 || good > HOST_DB_MAX_ROUND_ROBIN_INFO);
+
+  if (bad) {
+    ink_assert(!"bad round robin size");
+    return NULL;
+  }
+
+#ifdef DEBUG
+  for (int i = 1; i < good; ++i) {
+    ink_assert(info[i].data.srv.srv_priority >= info[i-1].data.srv.srv_priority);
+  }
+#endif
+
+  int i = 0, len = 0;
+  uint32_t weight = 0, p = INT32_MAX;
+  HostDBInfo *result = NULL;
+  HostDBInfo *infos[HOST_DB_MAX_ROUND_ROBIN_INFO];
+
+  do {
+    if (info[i].app.http_data.last_failure != 0 &&
+        (uint32_t) (now - fail_window) < info[i].app.http_data.last_failure) {
+      continue;
+    }
+
+    if (info[i].app.http_data.last_failure)
+      info[i].app.http_data.last_failure = 0;
+
+    if (info[i].data.srv.srv_priority <= p) {
+      p = info[i].data.srv.srv_priority;
+      weight += info[i].data.srv.srv_weight;
+      infos[len++] = &info[i];
+    } else
+      break;
+  } while (++i < good);
+
+  if (len == 0) { // all failed
+    result = &info[current++ % good];
+  } else if (weight == 0) { // srv weight is 0
+    result = &info[current++ % len];
+  } else {
+    uint32_t xx = rand->random() % weight;
+    for (i = 0; i < len && xx >= infos[i]->data.srv.srv_weight; ++i)
+      xx -= infos[i]->data.srv.srv_weight;
+
+    result = infos[i];
+  }
+
+  if (result) {
+    strcpy(target, result->srvname(this));
+    return result;
+  }
+  return NULL;
+}
+
+//
+// Types
+//
+
+/** Container for an MD5 hash and its dependent data.
+    This handles both the host name and raw address cases.
+*/
+struct HostDBMD5 {
+  typedef HostDBMD5 self; ///< Self reference type.
+
+  INK_MD5 hash; ///< The hash value.
+
+  char const* host_name; ///< Host name.
+  int host_len; ///< Length of @a _host_name
+  IpAddr ip; ///< IP address.
+  int port; ///< IP port (host order).
+  /// DNS server. Not strictly part of the MD5 data but
+  /// it's both used by @c HostDBContinuation and provides access to
+  /// MD5 data. It's just handier to store it here for both uses.
+  DNSServer* dns_server;
+  HostDBMark db_mark; ///< Mark / type of record.
+
+  /// Default constructor.
+  HostDBMD5();
+  /// Recompute and update the MD5 hash.
+  void refresh();
+};
+
+//
+// Handles a HostDB lookup request
+//
+struct HostDBContinuation;
+typedef int (HostDBContinuation::*HostDBContHandler) (int, void *);
+
+struct HostDBContinuation: public Continuation
+{
+  Action action;
+  HostDBMD5 md5;
+  //  IpEndpoint ip;
+  unsigned int ttl;
+  //  HostDBMark db_mark; ///< Target type.
+  /// Original IP address family style. Note this will disagree with
+  /// @a md5.db_mark when doing a retry on an alternate family. The retry
+  /// logic depends on it to avoid looping.
+  HostResStyle host_res_style; ///< Address family priority.
+  int dns_lookup_timeout;
+  //  INK_MD5 md5;
+  Event *timeout;
+  ClusterMachine *from;
+  Continuation *from_cont;
+  HostDBApplicationInfo app;
+  int probe_depth;
+  ClusterMachine *past_probes[CONFIGURATION_HISTORY_PROBE_DEPTH];
+  //  char name[MAXDNAME];
+  //  int namelen;
+  char md5_host_name_store[MAXDNAME+1]; // used as backing store for @a md5
+  char srv_target_name[MAXDNAME];
+  void *m_pDS;
+  Action *pending_action;
+
+  unsigned int missing:1;
+  unsigned int force_dns:1;
+  unsigned int round_robin:1;
+
+  int probeEvent(int event, Event * e);
+  int clusterEvent(int event, Event * e);
+  int clusterResponseEvent(int event, Event * e);
+  int dnsEvent(int event, HostEnt * e);
+  int dnsPendingEvent(int event, Event * e);
+  int backgroundEvent(int event, Event * e);
+  int retryEvent(int event, Event * e);
+  int removeEvent(int event, Event * e);
+  int setbyEvent(int event, Event * e);
+
+  /// Recompute the MD5 and update ancillary values.
+  void refresh_MD5();
+  void do_dns();
+  bool is_byname()
+  {
+    return md5.db_mark == HOSTDB_MARK_IPV4 || md5.db_mark == HOSTDB_MARK_IPV6;
+  }
+  bool is_srv()
+  {
+    return md5.db_mark == HOSTDB_MARK_SRV;
+  }
+  HostDBInfo *lookup_done(IpAddr const& ip, char const* aname, bool round_robin, unsigned int attl, SRVHosts * s = NULL);
+  bool do_get_response(Event * e);
+  void do_put_response(ClusterMachine * m, HostDBInfo * r, Continuation * cont);
+  int failed_cluster_request(Event * e);
+  int key_partition();
+  void remove_trigger_pending_dns();
+  int set_check_pending_dns();
+
+  ClusterMachine *master_machine(ClusterConfiguration * cc);
+
+  HostDBInfo *insert(unsigned int attl);
+
+  /** Optional values for @c init.
+   */
+  struct Options {
+    typedef Options self; ///< Self reference type.
+
+    int timeout; ///< Timeout value. Default 0
+    HostResStyle host_res_style; ///< IP address family fallback. Default @c HOST_RES_NONE
+    bool force_dns; ///< Force DNS lookup. Default @c false
+    Continuation* cont; ///< Continuation / action. Default @c NULL (none)
+
+    Options()
+      : timeout(0), host_res_style(HOST_RES_NONE), force_dns(false), cont(0)
+    { }
+  };
+  static const Options DEFAULT_OPTIONS; ///< Default defaults.
+  void init(HostDBMD5 const& md5,
+            Options const& opt = DEFAULT_OPTIONS);
+  int make_get_message(char *buf, int len);
+  int make_put_message(HostDBInfo * r, Continuation * c, char *buf, int len);
+
+HostDBContinuation():
+  Continuation(NULL), ttl(0),
+    host_res_style(DEFAULT_OPTIONS.host_res_style),
+    dns_lookup_timeout(DEFAULT_OPTIONS.timeout),
+    timeout(0), from(0),
+    from_cont(0), probe_depth(0), missing(false),
+    force_dns(DEFAULT_OPTIONS.force_dns), round_robin(false) {
+    ink_zero(md5_host_name_store);
+    ink_zero(md5.hash);
+    SET_HANDLER((HostDBContHandler) & HostDBContinuation::probeEvent);
+  }
+};
+
+//extern Queue<HostDBContinuation>  remoteHostDBQueue[MULTI_CACHE_PARTITIONS];
+
+inline unsigned int
+master_hash(INK_MD5 const& md5)
+{
+  return static_cast<int>(md5[1] >> 32);
+}
+
+inline bool
+is_dotted_form_hostname(const char *c)
+{
+  return -1 != (int) ink_inet_addr(c);
+}
+
+inline Queue<HostDBContinuation> &
+HostDBCache::pending_dns_for_hash(INK_MD5 & md5)
+{
+  return pending_dns[partition_of_bucket((int) (fold_md5(md5) % hostDB.buckets))];
+}
+
+inline int
+HostDBContinuation::key_partition()
+{
+  return hostDB.partition_of_bucket(fold_md5(md5.hash) % hostDB.buckets);
+}
+
+#endif /* _P_HostDBProcessor_h_ */
diff --git a/iocore/hostdb/P_MultiCache.h b/iocore/hostdb/P_MultiCache.h
new file mode 100644
index 00000000..f9aef9c9
--- /dev/null
+++ b/iocore/hostdb/P_MultiCache.h
@@ -0,0 +1,674 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  MultiCache.h
+
+
+ ****************************************************************************/
+
+
+#ifndef _MultiCache_h_
+#define _MultiCache_h_
+
+#include "I_EventSystem.h"
+#include "I_Store.h"
+
+//
+// Constants
+//
+
+#define MULTI_CACHE_MAX_LEVELS       3
+#define MULTI_CACHE_MAX_BUCKET_SIZE  256
+#define MULTI_CACHE_MAX_FILES        256
+#define MULTI_CACHE_PARTITIONS       64
+
+#define MULTI_CACHE_EVENT_SYNC       MULTI_CACHE_EVENT_EVENTS_START
+
+
+// for heap_offset() and heap_size(), indicates no data
+#define MULTI_CACHE_HEAP_NONE       -1
+
+#define MULTI_CACHE_MAGIC_NUMBER     0x0BAD2D8
+
+// Update these if there is a change to MultiCacheBase
+// There is a separate HOST_DB_CACHE_[MAJOR|MINOR]_VERSION
+#define MULTI_CACHE_MAJOR_VERSION    2
+#define MULTI_CACHE_MINOR_VERSION    1
+// 2.1 - IPv6 compatible
+
+#define MULTI_CACHE_HEAP_HIGH_WATER  0.8
+
+#define MULTI_CACHE_HEAP_INITIAL     sizeof(uint32_t)
+#define MULTI_CACHE_HEAP_ALIGNMENT   8
+
+// unused.. possible optimization
+#define MULTI_CACHE_OFFSET_PARITION(_x)  ((_x)%MULTI_CACHE_PARTITIONS)
+#define MULTI_CACHE_OFFSET_INDEX(_x)     ((_x)/MULTI_CACHE_PARTITIONS)
+#define MULTI_CACHE_OFFSET(_p,_o)        ((_p) + (_o) * MULTI_CACHE_PARTITIONS)
+
+class ProxyMutex;
+class Continuation;
+
+//
+// Types
+//
+
+// MultiCacheBlock
+// This is an abstract class which simply documents the operations
+// required by the templated cache operations.
+
+
+struct MultiCacheBlock
+{
+  uint64_t tag();
+  bool is_deleted();
+  void set_deleted();
+  bool is_empty();
+  void set_empty();
+  void reset();
+  void set_full(uint64_t folded_md5, int buckets);
+  int heap_size()
+  {
+    return 0;
+  }
+  int *heap_offset_ptr()
+  {
+    return NULL;
+  }
+};
+
+struct RebuildMC
+{
+  bool rebuild;
+  bool check;
+  bool fix;
+  char *data;
+  int partition;
+
+  int deleted;
+  int backed;
+  int duplicates;
+  int corrupt;
+  int stale;
+  int good;
+  int total;
+};
+
+struct MultiCacheHeader
+{
+  unsigned int magic;
+  VersionNumber version;
+
+  int levels;
+
+  int tag_bits;
+  int max_hits;
+  int elementsize;
+
+  int buckets;
+  int level_offset[MULTI_CACHE_MAX_LEVELS];
+  int elements[MULTI_CACHE_MAX_LEVELS];
+  int bucketsize[MULTI_CACHE_MAX_LEVELS];
+
+  int totalelements;
+  unsigned int totalsize;
+
+  int nominal_elements;
+
+  // optional heap
+  int heap_size;
+  volatile int heap_halfspace;
+  volatile int heap_used[2];
+
+    MultiCacheHeader();
+};
+
+// size of block of unsunk pointers with respect to the number of
+// elements
+#define MULTI_CACHE_UNSUNK_PTR_BLOCK_SIZE(_e)   \
+  ((_e / 8) / MULTI_CACHE_PARTITIONS)
+
+struct UnsunkPtr
+{
+  int offset;
+  int *poffset;                 // doubles as freelist pointer
+};
+
+struct MultiCacheBase;
+
+struct UnsunkPtrRegistry
+{
+  MultiCacheBase *mc;
+  int n;
+  UnsunkPtr *ptrs;
+  UnsunkPtr *next_free;
+  UnsunkPtrRegistry *next;
+
+  UnsunkPtr *ptr(int i);
+  UnsunkPtr *alloc(int *p, int base = 0);
+  void alloc_data();
+
+    UnsunkPtrRegistry();
+   ~UnsunkPtrRegistry();
+};
+
+//
+// Broken SunCC
+//
+#define PtrMutex Ptr<ProxyMutex>
+
+//
+// used by windows only - to keep track
+// of mapping handles
+//
+struct Unmaper
+{
+  void *hMap;
+  char *pAddr;
+};
+
+typedef int three_ints[3];
+typedef int two_ints[2];
+
+struct MultiCacheHeapGC;
+
+struct MultiCacheBase: public MultiCacheHeader
+{
+  Store *store;
+  char filename[PATH_NAME_MAX + 1];
+  MultiCacheHeader *mapped_header;
+
+  MultiCacheHeader header_snap;
+
+  // mmap-ed region
+  //
+  char *data;
+  char *lowest_level_data;
+
+  // equal to data + level_offset[3] + bucketsize[3] * buckets;
+  char *heap;
+
+  // interface functions
+  //
+  int halfspace_size()
+  {
+    return heap_size / 2;
+  }
+
+  // Stats support
+  //
+  int hit_stat[MULTI_CACHE_MAX_LEVELS];
+  int miss_stat;
+
+  int lowest_level_data_size()
+  {
+    return (buckets + 3) / 4;
+  }
+  int lowest_level(int bucket)
+  {
+    int i = (unsigned char) lowest_level_data[bucket / 4];
+    return 3 & (i >> (buckets % 4));
+  }
+  void set_lowest_level(int bucket, int lowest)
+  {
+    unsigned char p = (unsigned char) lowest_level_data[bucket / 4];
+    p &= ~(3 << (buckets % 4));
+    p |= (lowest & 3) << (buckets % 4);
+    lowest_level_data[bucket / 4] = (char) p;
+  }
+
+  // Fixed point, 8 bits shifted left
+  int buckets_per_partitionF8;
+
+  int partition_of_bucket(int b)
+  {
+    return ((b << 8) + 0xFF) / buckets_per_partitionF8;
+  }
+  int first_bucket_of_partition(int p)
+  {
+    return ((buckets_per_partitionF8 * p) >> 8);
+  }
+  int last_bucket_of_partition(int p)
+  {
+    return first_bucket_of_partition(p + 1) - 1;
+  }
+  int buckets_of_partition(int p)
+  {
+    return last_bucket_of_partition(p) - first_bucket_of_partition(p) + 1;
+  }
+
+  int open(Store * store, const char *config_filename,
+           char *db_filename = NULL, int db_size = -1, bool reconfigure = false, bool fix = false, bool silent = false);
+
+  // 1 for success, 0 for no config file, -1 for failure
+  int read_config(const char *config_filename, Store & store, char *fn = NULL, int *pi = NULL, int *pbuckets = NULL);
+  int write_config(const char *config_filename, int nominal_size, int buckets);
+  int initialize(Store * store, char *filename, int elements,
+                 int buckets = 0, int levels = 2,
+                 int level0_elements_per_bucket = 4,
+                 int level1_elements_per_bucket = 32, int level2_elements_per_bucket = 1);
+  int mmap_data(bool private_flag = false, bool zero_fill = false);
+  char *mmap_region(int blocks, int *fds, char *cur, bool private_flag, int zero_fill = 0);
+  int blocks_in_level(int level);
+
+  bool verify_header();
+
+  int unmap_data();
+  void reset();
+  void clear();                 // this zeros the data
+  void clear_but_heap();
+
+  virtual MultiCacheBase *dup()
+  {
+    ink_assert(0);
+    return NULL;
+  }
+
+  virtual size_t estimated_heap_bytes_per_entry() const { return 0; }
+
+  void print_info(FILE * fp);
+
+  //
+  // Rebuild the database, also perform checks, and fixups
+  // ** cannot be called on a running system **
+  // "this" must be initialized.
+  //
+#define MC_REBUILD         0
+#define MC_REBUILD_CHECK   1
+#define MC_REBUILD_FIX     2
+  int rebuild(MultiCacheBase & old, int kind = MC_REBUILD);     // 0 on success
+
+  virtual void rebuild_element(int buck, char *elem, RebuildMC & r)
+  {
+    (void) buck;
+    (void) elem;
+    (void) r;
+    ink_assert(0);
+  }
+
+  //
+  // Check the database
+  // ** cannot be called on a running system **
+  //  assumes that the configuration is correct
+  //
+  int check(const char *config_filename, bool fix = false);
+
+  ProxyMutex *lock_for_bucket(int bucket)
+  {
+    return locks[partition_of_bucket(bucket)];
+  }
+  uint64_t make_tag(uint64_t folded_md5)
+  {
+    uint64_t ttag = folded_md5 / (uint64_t) buckets;
+    if (!ttag)
+      return 1LL;
+    // beeping gcc 2.7.2 is broken
+    if (tag_bits > 32) {
+      uint64_t mask = 0x100000000LL << (tag_bits - 32);
+      mask = mask - 1;
+      return ttag & mask;
+    } else {
+      uint64_t mask = 1LL;
+      mask <<= tag_bits;
+      mask = mask - 1;
+      return ttag & mask;
+    }
+  }
+
+  int sync_all();
+  int sync_heap(int part);      // part varies between 0 and MULTI_CACHE_PARTITIONS
+  int sync_header();
+  int sync_partition(int partition);
+  void sync_partitions(Continuation * cont);
+
+  MultiCacheBase();
+  virtual ~ MultiCacheBase() {
+    reset();
+  }
+
+  virtual int get_elementsize()
+  {
+    ink_assert(0);
+    return 0;
+  }
+
+  // Heap support
+  UnsunkPtrRegistry unsunk[MULTI_CACHE_PARTITIONS];
+
+  // -1 on error
+  int ptr_to_partition(char *);
+  // the user must pass in the offset field within the
+  // MultiCacheBlock object.  The offset will be inserted
+  // into the object on success and a pointer to the data
+  // returned.  On failure, NULL is returned;
+  void *alloc(int *poffset, int size);
+  void update(int *poffset, int *old_poffset);
+  void *ptr(int *poffset, int partition);
+  int valid_offset(int offset)
+  {
+    int max;
+    if (offset < halfspace_size())
+      max = heap_used[0];
+    else
+      max = halfspace_size() + heap_used[1];
+    return offset < max;
+  }
+  int valid_heap_pointer(char *p)
+  {
+    if (p < heap + halfspace_size())
+      return p < heap + heap_used[0];
+    else
+      return p < heap + halfspace_size() + heap_used[1];
+  }
+  void copy_heap_data(char *src, int s, int *pi, int partition, MultiCacheHeapGC * gc);
+  int halfspace_of(int o)
+  {
+    return o < halfspace_size()? 0 : 1;
+  }
+  UnsunkPtrRegistry *fixup_heap_offsets(int partition, int before_used, UnsunkPtrRegistry * r = NULL, int base = 0);
+
+  virtual void copy_heap(int partition, MultiCacheHeapGC * gc)
+  {
+    (void) partition;
+    (void) gc;
+  }
+
+  //
+  // Private
+  //
+  void alloc_mutexes()
+  {
+    for (int i = 0; i < MULTI_CACHE_PARTITIONS; i++)
+      locks[i] = new_ProxyMutex();
+  }
+  PtrMutex locks[MULTI_CACHE_PARTITIONS];       // 1 lock per (buckets/partitions)
+};
+
+template<class C> struct MultiCache: public MultiCacheBase
+{
+  int get_elementsize()
+  {
+    return sizeof(C);
+  }
+
+  MultiCacheBase *dup()
+  {
+    return new MultiCache<C>;
+  }
+
+  void rebuild_element(int buck, char *elem, RebuildMC & r);
+  // -1 is corrupt, 0 == void (do not insert), 1 is OK
+  virtual int rebuild_callout(C * c, RebuildMC & r)
+  {
+    (void) c;
+    (void) r;
+    return 1;
+  }
+
+  virtual void rebuild_insert_callout(C * c, RebuildMC & r)
+  {
+    (void) c;
+    (void) r;
+  }
+
+  //
+  // template operations
+  //
+  int level_of_block(C * b);
+  bool match(uint64_t folded_md5, C * block);
+  C *cache_bucket(uint64_t folded_md5, int level);
+  C *insert_block(uint64_t folded_md5, C * new_block, int level);
+  void flush(C * b, int bucket, int level);
+  void delete_block(C * block);
+  C *lookup_block(uint64_t folded_md5, int level);
+  void copy_heap(int paritition, MultiCacheHeapGC *);
+};
+
+inline uint64_t
+fold_md5(INK_MD5 const& md5)
+{
+  return md5.fold();
+}
+
+template<class C> inline int MultiCache<C>::level_of_block(C * b)
+{
+  if ((char *) b - data >= level_offset[1]) {
+    if ((char *) b - data >= level_offset[2])
+      return 2;
+    return 1;
+  }
+  return 0;
+}
+
+template<class C> inline C * MultiCache<C>::cache_bucket(uint64_t folded_md5, int level)
+{
+  int bucket = (int) (folded_md5 % buckets);
+  char *offset = data + level_offset[level] + bucketsize[level] * bucket;
+  return (C *) offset;
+}
+
+//
+// Insert an entry
+//
+template<class C> inline C * MultiCache<C>::insert_block(uint64_t folded_md5, C * new_block, int level)
+{
+  C *b = cache_bucket(folded_md5, level);
+  C *block = NULL, *empty = NULL;
+  int bucket = (int) (folded_md5 % buckets);
+  int hits = 0;
+
+  // Find the entry
+  //
+  uint64_t tag = make_tag(folded_md5);
+  int n_empty = 0;
+
+  for (block = b; block < b + elements[level]; block++) {
+    if (block->is_empty() && !empty) {
+      n_empty++;
+      empty = block;
+    }
+    if (tag == block->tag())
+      goto Lfound;
+    hits += block->hits;
+  }
+  if (empty) {
+    block = empty;
+    goto Lfound;
+  }
+
+  {
+    C *best = NULL;
+    int again = 1;
+    do {
+      // Find an entry previously backed to a higher level.
+      // self scale the hits number within the bucket
+      //
+      unsigned int dec = 0;
+      if (hits > ((max_hits / 2) + 1) * elements[level])
+        dec = 1;
+      for (block = b; block < b + elements[level]; block++) {
+        if (block->backed && (!best || best->hits > block->hits))
+          best = block;
+        if (block->hits)
+          block->hits -= dec;
+      }
+      if (best) {
+        block = best;
+        goto Lfound;
+      }
+      flush(b, bucket, level);
+    } while (again--);
+    ink_assert(!"cache flush failure");
+  }
+
+Lfound:
+  if (new_block) {
+    *block = *new_block;
+    int *hop = new_block->heap_offset_ptr();
+    if (hop)
+      update(block->heap_offset_ptr(), hop);
+    block->backed = 0;
+  } else
+    block->reset();
+  block->set_full(folded_md5, buckets);
+  ink_assert(block->tag() == tag);
+  return block;
+}
+
+#define REBUILD_FOLDED_MD5(_cl) \
+((_cl->tag() * (uint64_t)buckets + (uint64_t)bucket))
+
+//
+// This function ejects some number of entries.
+//
+template<class C> inline void MultiCache<C>::flush(C * b, int bucket, int level)
+{
+  C *block = NULL;
+  if (level < levels - 1) {
+    if (level >= lowest_level(bucket))
+      set_lowest_level(bucket, level + 1);
+    for (block = b; block < b + elements[level]; block++) {
+      ink_assert(!block->is_empty());
+      insert_block(REBUILD_FOLDED_MD5(block), block, level + 1);
+      block->backed = true;
+    }
+  } else {
+    for (block = b; block < b + elements[level]; block++)
+      if (!block->is_empty())
+        block->backed = true;
+  }
+}
+
+//
+// Match a cache line and a folded md5 key
+//
+template<class C> inline bool MultiCache<C>::match(uint64_t folded_md5, C * block)
+{
+  return block->tag() == make_tag(folded_md5);
+}
+
+//
+// This code is a bit of a mess and should probably be rewritten
+//
+template<class C> inline void MultiCache<C>::delete_block(C * b)
+{
+  if (b->backed) {
+    int l = level_of_block(b);
+    if (l < levels - 1) {
+      int bucket = (((char *) b - data) - level_offset[l]) / bucketsize[l];
+      C *x = (C *) (data + level_offset[l + 1] + bucket * bucketsize[l + 1]);
+      for (C * y = x; y < x + elements[l + 1]; y++)
+        if (b->tag() == y->tag())
+          delete_block(y);
+    }
+  }
+  b->set_empty();
+}
+
+//
+// Lookup an entry up to some level in the cache
+//
+template<class C> inline C * MultiCache<C>::lookup_block(uint64_t folded_md5, int level)
+{
+  C *b = cache_bucket(folded_md5, 0);
+  uint64_t tag = make_tag(folded_md5);
+  int i = 0;
+  // Level 0
+  for (i = 0; i < elements[0]; i++)
+    if (tag == b[i].tag())
+      return &b[i];
+  if (level <= 0)
+    return NULL;
+  // Level 1
+  b = cache_bucket(folded_md5, 1);
+  for (i = 0; i < elements[1]; i++)
+    if (tag == b[i].tag())
+      return &b[i];
+  if (level <= 1)
+    return NULL;
+  // Level 2
+  b = cache_bucket(folded_md5, 2);
+  for (i = 0; i < elements[2]; i++)
+    if (tag == b[i].tag())
+      return &b[i];
+  return NULL;
+}
+
+template<class C> inline void MultiCache<C>::rebuild_element(int bucket, char *elem, RebuildMC & r)
+{
+  C *e = (C *) elem;
+  if (!e->is_empty()) {
+    r.total++;
+    if (e->is_deleted())
+      r.deleted++;
+    if (e->backed)
+      r.backed++;
+    int res = rebuild_callout(e, r);
+    if (res < 0)
+      r.corrupt++;
+    else if (!res)
+      r.stale++;
+    else {
+      r.good++;
+      if (lookup_block(REBUILD_FOLDED_MD5(e), levels - 1))
+        if (!e->backed)
+          r.duplicates++;
+      C *new_e = insert_block(REBUILD_FOLDED_MD5(e), e, 0);
+      rebuild_insert_callout(new_e, r);
+    }
+  }
+}
+
+template<class C> inline void MultiCache<C>::copy_heap(int partition, MultiCacheHeapGC * gc)
+{
+  int b = first_bucket_of_partition(partition);
+  int n = buckets_of_partition(partition);
+  for (int level = 0; level < levels; level++) {
+    int e = n * elements[level];
+    char *d = data + level_offset[level] + b * bucketsize[level];
+    C *x = (C *) d;
+    for (int i = 0; i < e; i++) {
+      int s = x[i].heap_size();
+      if (s) {
+        int *pi = x[i].heap_offset_ptr();
+        if (pi) {
+          char *src = (char *) ptr(pi, partition);
+          if (src) {
+            if (heap_halfspace) {
+              if (src >= heap + halfspace_size())
+                continue;
+            } else if (src < heap + halfspace_size())
+              continue;
+            copy_heap_data(src, s, pi, partition, gc);
+          }
+        }
+      }
+    }
+  }
+}
+
+// store either free or in the cache, can be stolen for reconfiguration
+void stealStore(Store & s, int blocks);
+#endif /* _MultiCache_h_ */
diff --git a/iocore/hostdb/include/Machine.h b/iocore/hostdb/include/Machine.h
new file mode 100644
index 00000000..c377ca4b
--- /dev/null
+++ b/iocore/hostdb/include/Machine.h
@@ -0,0 +1,145 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Machine.h
+
+
+ ****************************************************************************/
+
+
+//
+//  The Machine is the set of processes which share part of an
+//  address space.
+//
+
+#ifndef _Machine_h
+#define _Machine_h
+
+//
+// Timeout the Machine * this amount of time after they
+// fall out of the current configuration that are deleted.
+//
+#define MACHINE_TIMEOUT            (HRTIME_DAY*2)
+
+
+//
+//  This is the time processors should delay before freeing up resouces
+//  which are shared with other threads in non-long running operations.
+//  For example, a Machine * is returned by the hash and used to do
+//  a remote invoke.  For the pointer to remain valid (or be recognized as
+//  invalid) he resource should not be raclaimed for NO_RACE_DELAY.
+//
+//  Long running operations should use more sophisticated synchronization.
+//
+#define NO_RACE_DELAY                  HRTIME_HOUR      // a long long time
+
+//#include "Connection.h"
+
+class ClusterHandler;           // Leave this a class - VC++ gets very anal  ~SR
+
+struct Machine: Server
+{
+  bool dead;
+  char *hostname;
+  int hostname_len;
+  //
+  // The network address of the current machine,
+  // stored in network byte order
+  //
+  unsigned int ip;
+  int cluster_port;
+
+    Link<Machine> link;
+
+  // default for localhost
+    Machine(char *hostname = NULL, unsigned int ip = 0, int acluster_port = 0);
+   ~Machine();
+
+  // Cluster message protocol version
+  uint16_t msg_proto_major;
+  uint16_t msg_proto_minor;
+
+  // Private data for ClusterProcessor
+  //
+  ClusterHandler *clusterHandler;
+};
+
+struct MachineListElement
+{
+  unsigned int ip;
+  int port;
+};
+
+struct MachineList
+{
+  int n;
+  MachineListElement machine[1];
+  MachineListElement *find(unsigned int ip, int port = 0) {
+    for (int i = 0; i < n; i++)
+      if (machine[i].ip == ip && (!port || machine[i].port == port))
+        return &machine[i];
+    return NULL;
+  }
+};
+
+MachineList *read_MachineList(char *filename, int test_fd = -1);
+void free_MachineList(MachineList * l);
+
+#ifdef FIXME_CONFIG
+struct clusterConfigFile: configFile
+{
+  char *parseFile(int fd)
+  {
+    return (char *) read_MachineList(NULL, fd);
+  }
+};
+#endif
+
+inkcoreapi Machine *this_machine();
+void create_this_machine();
+
+void free_Machine(Machine * m);
+
+MachineList *the_machines_config();
+MachineList *the_cluster_config();
+extern ProxyMutex *the_cluster_config_mutex;
+
+#define INK_GETHOSTBYNAME_R_DATA_SIZE 10000
+struct ink_gethostbyname_r_data
+{
+  int herrno;
+  struct hostent ent;
+  char buf[INK_GETHOSTBYNAME_R_DATA_SIZE];
+};
+
+struct hostent *ink_gethostbyname_r(char *hostname, ink_gethostbyname_r_data * data);
+//
+// Private
+//
+extern MachineList *machines_config;
+extern MachineList *cluster_config;
+
+
+#endif /* _Machine_h */
diff --git a/iocore/hostdb/test_I_HostDB.cc b/iocore/hostdb/test_I_HostDB.cc
new file mode 100644
index 00000000..fced5aa2
--- /dev/null
+++ b/iocore/hostdb/test_I_HostDB.cc
@@ -0,0 +1,148 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include "I_HostDB.h"
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+//#define USE_SOCKS
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i, e;
+  char *p, *dt, *at;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc, "couldn't open diags log file '%s', " "will not log to this file",
+                 diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+class HostDBTest:Continuation
+{
+
+
+};
+
+main()
+{
+  init_diags("net_test", NULL);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  ink_net_init(NET_SYSTEM_MODULE_VERSION);
+  ink_hostdb_init(HOSTDB_MODULE_VERSION);
+  signal(SIGPIPE, SIG_IGN);
+
+  eventProcessor.start(2);
+  netProcessor.start();
+
+  printf("hello world\n");
+
+  hostDBProcessor.start();
+
+
+  this_ethread()->execute();
+}
diff --git a/iocore/hostdb/test_P_HostDB.cc b/iocore/hostdb/test_P_HostDB.cc
new file mode 100644
index 00000000..b4ef7527
--- /dev/null
+++ b/iocore/hostdb/test_P_HostDB.cc
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_HostDB.h"
+
+Diags *diags;
+struct NetTesterSM:public Continuation
+{
+  VIO *read_vio;
+  IOBufferReader *reader;
+  NetVConnection *vc;
+  MIOBuffer *buf;
+
+    NetTesterSM(ProxyMutex * _mutex, NetVConnection * _vc):Continuation(_mutex)
+  {
+    MUTEX_TRY_LOCK(lock, mutex, _vc->thread);
+    ink_release_assert(lock);
+    vc = _vc;
+    SET_HANDLER(&NetTesterSM::handle_read);
+    buf = new_MIOBuffer(8);
+    reader = buf->alloc_reader();
+    read_vio = vc->do_io_read(this, INT64_MAX, buf);
+  }
+
+
+  int handle_read(int event, void *data)
+  {
+    int r;
+    char *str;
+    switch (event) {
+    case VC_EVENT_READ_READY:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      printf("%s", str);
+      fflush(stdout);
+      break;
+    case VC_EVENT_READ_COMPLETE:
+      /* FALLSTHROUGH */
+    case VC_EVENT_EOS:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      printf("%s", str);
+      fflush(stdout);
+    case VC_EVENT_ERROR:
+      vc->do_io_close();
+      // fixme
+      // handle timeout events
+      break;
+    default:
+      ink_release_assert(!"unknown event");
+
+    }
+    return EVENT_CONT;
+  }
+
+
+};
+
+main()
+{
+}
diff --git a/iocore/net/Connection.cc b/iocore/net/Connection.cc
new file mode 100644
index 00000000..deff04d9
--- /dev/null
+++ b/iocore/net/Connection.cc
@@ -0,0 +1,339 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  Connections
+
+  Commonality across all platforms -- move out as required.
+
+**************************************************************************/
+#include "libts.h"
+
+#include "P_Net.h"
+
+#define SET_TCP_NO_DELAY
+#define SET_NO_LINGER
+// set in the OS
+// #define RECV_BUF_SIZE            (1024*64)
+// #define SEND_BUF_SIZE            (1024*64)
+#define FIRST_RANDOM_PORT        16000
+#define LAST_RANDOM_PORT         32000
+
+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
+
+#ifndef FD_CLOEXEC
+#define FD_CLOEXEC 1
+#endif
+
+int
+get_listen_backlog(void)
+{
+  int listen_backlog = 1024;
+
+  REC_ReadConfigInteger(listen_backlog, "proxy.config.net.listen_backlog");
+  return listen_backlog;
+}
+
+
+//
+// Functions
+//
+char const*
+NetVCOptions::toString(addr_bind_style s) {
+  return ANY_ADDR == s ? "any"
+    : INTF_ADDR == s ? "interface"
+    : "foreign"
+    ;
+}
+
+Connection::Connection()
+  : fd(NO_FD)
+  , is_bound(false)
+  , is_connected(false)
+  , sock_type(0)
+{
+  memset(&addr, 0, sizeof(addr));
+}
+
+
+Connection::~Connection()
+{
+  close();
+}
+
+
+int
+Server::accept(Connection * c)
+{
+  int res = 0;
+  socklen_t sz = sizeof(c->addr);
+
+  res = socketManager.accept(fd, &c->addr.sa, &sz);
+  if (res < 0)
+    return res;
+  c->fd = res;
+  if (is_debug_tag_set("iocore_net_server")) {
+    ip_port_text_buffer ipb1, ipb2;
+      Debug("iocore_net_server", "Connection accepted [Server]. %s -> %s\n"
+        , ats_ip_nptop(&c->addr, ipb2, sizeof(ipb2))
+        , ats_ip_nptop(&addr, ipb1, sizeof(ipb1))
+      );
+  }
+
+#ifdef SET_CLOSE_ON_EXEC
+  if ((res = safe_fcntl(fd, F_SETFD, FD_CLOEXEC)) < 0)
+    goto Lerror;
+#endif
+  if ((res = safe_nonblocking(c->fd)) < 0)
+    goto Lerror;
+#ifdef SEND_BUF_SIZE
+  socketManager.set_sndbuf_size(c->fd, SEND_BUF_SIZE);
+#endif
+#ifdef SET_SO_KEEPALIVE
+  // enables 2 hour inactivity probes, also may fix IRIX FIN_WAIT_2 leak
+  if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int))) < 0)
+    goto Lerror;
+#endif
+
+  return 0;
+
+Lerror:
+  c->close();
+  return res;
+}
+
+
+int
+Connection::close()
+{
+  is_connected = false;
+  is_bound = false;
+  // don't close any of the standards
+  if (fd >= 2) {
+    int fd_save = fd;
+    fd = NO_FD;
+    return socketManager.close(fd_save);
+  } else {
+    fd = NO_FD;
+    return -EBADF;
+  }
+}
+
+static int
+add_http_filter(int fd ATS_UNUSED)
+{
+  int err = -1;
+#if defined(SOL_FILTER) && defined(FIL_ATTACH)
+  err = setsockopt(fd, SOL_FILTER, FIL_ATTACH, "httpfilt", 9);
+#endif
+  return err;
+}
+
+int
+Server::setup_fd_for_listen(
+  bool non_blocking,
+  int recv_bufsize,
+  int send_bufsize,
+  bool transparent)
+{
+  int res = 0;
+
+  ink_assert(fd != NO_FD);
+
+  if (http_accept_filter) {
+    add_http_filter(fd);
+  }
+
+#ifdef SEND_BUF_SIZE
+  {
+    int send_buf_size = SEND_BUF_SIZE;
+    if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (char *) &send_buf_size, sizeof(int)) < 0)) {
+      goto Lerror;
+    }
+  }
+#endif
+
+#ifdef RECV_BUF_SIZE
+  {
+    int recv_buf_size = RECV_BUF_SIZE;
+    if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *) &recv_buf_size, sizeof(int))) < 0) {
+      goto Lerror;
+    }
+  }
+#endif
+
+  if (recv_bufsize) {
+    if (socketManager.set_rcvbuf_size(fd, recv_bufsize)) {
+      // Round down until success
+      int rbufsz = ROUNDUP(recv_bufsize, 1024);
+      while (rbufsz) {
+        if (socketManager.set_rcvbuf_size(fd, rbufsz)) {
+          rbufsz -= 1024;
+        } else {
+          break;
+        }
+      }
+    }
+  }
+
+  if (send_bufsize) {
+    if (socketManager.set_sndbuf_size(fd, send_bufsize)) {
+      // Round down until success
+      int sbufsz = ROUNDUP(send_bufsize, 1024);
+      while (sbufsz) {
+        if (socketManager.set_sndbuf_size(fd, sbufsz)) {
+          sbufsz -= 1024;
+        } else {
+          break;
+        }
+      }
+    }
+  }
+
+#ifdef SET_CLOSE_ON_EXEC
+  if ((res = safe_fcntl(fd, F_SETFD, FD_CLOEXEC)) < 0) {
+    goto Lerror;
+  }
+#endif
+
+#ifdef SET_NO_LINGER
+  {
+    struct linger l;
+    l.l_onoff = 0;
+    l.l_linger = 0;
+    if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_LINGER, (char *) &l, sizeof(l))) < 0) {
+      goto Lerror;
+    }
+  }
+#endif
+
+  if (ats_is_ip6(&addr) && (res = safe_setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, SOCKOPT_ON, sizeof(int))) < 0) {
+    goto Lerror;
+  }
+
+  if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, SOCKOPT_ON, sizeof(int))) < 0) {
+    goto Lerror;
+  }
+
+#ifdef SET_TCP_NO_DELAY
+  if ((res = safe_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int))) < 0) {
+    goto Lerror;
+  }
+#endif
+
+#ifdef SET_SO_KEEPALIVE
+  // enables 2 hour inactivity probes, also may fix IRIX FIN_WAIT_2 leak
+  if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int))) < 0) {
+    goto Lerror;
+  }
+#endif
+
+  if (transparent) {
+#if TS_USE_TPROXY
+    Debug("http_tproxy", "Listen port inbound transparency enabled.\n");
+    if (safe_setsockopt(fd, SOL_IP, TS_IP_TRANSPARENT, SOCKOPT_ON, sizeof(int)) < 0) {
+      Error("[Server::listen] Unable to set transparent socket option [%d] %s\n", errno, strerror(errno));
+      _exit(1);
+    }
+#else
+    Error("[Server::listen] Transparency requested but TPROXY not configured\n");
+#endif
+  }
+
+#if defined(TCP_MAXSEG)
+  if (NetProcessor::accept_mss > 0) {
+    if ((res = safe_setsockopt(fd, IPPROTO_TCP, TCP_MAXSEG, (char *) &NetProcessor::accept_mss, sizeof(int))) < 0) {
+      goto Lerror;
+    }
+  }
+#endif
+
+  if (non_blocking) {
+    if ((res = safe_nonblocking(fd)) < 0) {
+      goto Lerror;
+    }
+  }
+
+  return 0;
+
+Lerror:
+  res = -errno;
+
+  // coverity[check_after_sink]
+  if (fd != NO_FD) {
+    close();
+    fd = NO_FD;
+  }
+
+  return res;
+}
+
+
+int
+Server::listen(bool non_blocking, int recv_bufsize, int send_bufsize, bool transparent)
+{
+  ink_assert(fd == NO_FD);
+  int res = 0;
+  int namelen;
+
+  if (!ats_is_ip(&accept_addr)) {
+    ats_ip4_set(&addr, INADDR_ANY, 0);
+  } else {
+    ats_ip_copy(&addr, &accept_addr);
+  }
+
+  fd = res = socketManager.socket(addr.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
+  if (res < 0) {
+    goto Lerror;
+  }
+
+  res = setup_fd_for_listen(non_blocking, recv_bufsize, send_bufsize, transparent);
+  if (res < 0) {
+    goto Lerror;
+  }
+
+  if ((res = socketManager.ink_bind(fd, &addr.sa, ats_ip_size(&addr.sa), IPPROTO_TCP)) < 0) {
+    goto Lerror;
+  }
+
+  if ((res = safe_listen(fd, get_listen_backlog())) < 0) {
+    goto Lerror;
+  }
+
+  // Original just did this on port == 0.
+  namelen = sizeof(addr);
+  if ((res = safe_getsockname(fd, &addr.sa, &namelen))) {
+      goto Lerror;
+  }
+
+  return 0;
+
+Lerror:
+  if (fd != NO_FD) {
+    close();
+    fd = NO_FD;
+  }
+
+  Error("Could not bind or listen to port %d (error: %d)", ats_ip_port_host_order(&addr), res);
+  return res;
+}
diff --git a/iocore/net/I_Net.h b/iocore/net/I_Net.h
new file mode 100644
index 00000000..333f24bc
--- /dev/null
+++ b/iocore/net/I_Net.h
@@ -0,0 +1,89 @@
+/** @file
+
+  Net subsystem
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Net subsystem is a layer on top the operations sytem network apis. It
+  provides an interface for accepting/creating new connection oriented
+  (TCP) and connection less (UDP) connetions and for reading/writing
+  data through these. The net system can manage 1000s of connections
+  very efficiently. Another advantage of using the net system is that
+  the SMs dont have be concerned about differences in the net apis of
+  various operations systems.
+
+  SMs use the netProcessor global object of the Net System to create new
+  connections or to accept incoming connections. When a new connection
+  is created the SM gets a NetVConnection which is a handle for the
+  underlying connections. The SM can then use the NetVConnection to get
+  properties of the connection, read and write data. Net system also
+  has socks and ssl support.
+
+ */
+#ifndef __I_NET_H_
+#define __I_NET_H_
+
+#include "I_Version.h"
+#include "I_EventSystem.h"
+#include <netinet/in.h>
+
+#define NET_SYSTEM_MODULE_MAJOR_VERSION 1
+#define NET_SYSTEM_MODULE_MINOR_VERSION 0
+#define NET_SYSTEM_MODULE_VERSION makeModuleVersion(                 \
+                                    NET_SYSTEM_MODULE_MAJOR_VERSION, \
+                                    NET_SYSTEM_MODULE_MINOR_VERSION, \
+                                    PUBLIC_MODULE_HEADER)
+
+static int const NO_FD = -1;
+
+extern int net_config_poll_timeout;
+
+#define NET_EVENT_OPEN                    (NET_EVENT_EVENTS_START)
+#define NET_EVENT_OPEN_FAILED             (NET_EVENT_EVENTS_START+1)
+#define NET_EVENT_ACCEPT                  (NET_EVENT_EVENTS_START+2)
+#define NET_EVENT_ACCEPT_SUCCEED          (NET_EVENT_EVENTS_START+3)
+#define NET_EVENT_ACCEPT_FAILED           (NET_EVENT_EVENTS_START+4)
+#define NET_EVENT_CANCEL                  (NET_EVENT_EVENTS_START+5)
+#define NET_EVENT_DATAGRAM_READ_COMPLETE  (NET_EVENT_EVENTS_START+6)
+#define NET_EVENT_DATAGRAM_READ_ERROR     (NET_EVENT_EVENTS_START+7)
+#define NET_EVENT_DATAGRAM_WRITE_COMPLETE (NET_EVENT_EVENTS_START+8)
+#define NET_EVENT_DATAGRAM_WRITE_ERROR    (NET_EVENT_EVENTS_START+9)
+#define NET_EVENT_DATAGRAM_READ_READY     (NET_EVENT_EVENTS_START+10)
+#define NET_EVENT_DATAGRAM_OPEN           (NET_EVENT_EVENTS_START+11)
+#define NET_EVENT_DATAGRAM_ERROR          (NET_EVENT_EVENTS_START+12)
+#define NET_EVENT_ACCEPT_INTERNAL         (NET_EVENT_EVENTS_START+22)
+#define NET_EVENT_CONNECT_INTERNAL        (NET_EVENT_EVENTS_START+23)
+
+#define MAIN_ACCEPT_PORT                  -1
+
+/*
+ * Net system uses event threads
+ * so, the net thread group id is the event thread group id
+ */
+
+#define ET_NET ET_CALL
+
+#include "I_NetVConnection.h"
+#include "I_NetProcessor.h"
+#include "I_SessionAccept.h"
+
+void ink_net_init(ModuleVersion version);
+#endif
diff --git a/iocore/net/I_NetProcessor.h b/iocore/net/I_NetProcessor.h
new file mode 100644
index 00000000..2cfa2ae9
--- /dev/null
+++ b/iocore/net/I_NetProcessor.h
@@ -0,0 +1,294 @@
+/** @file
+
+  This file implements an I/O Processor for network I/O
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef __I_NETPROCESSOR_H__
+#define __I_NETPROCESSOR_H__
+
+#include "I_EventSystem.h"
+#include "I_Socks.h"
+struct socks_conf_struct;
+#define NET_CONNECT_TIMEOUT 30
+
+struct NetVCOptions;
+
+/**
+  This is the heart of the Net system. Provides common network APIs,
+  like accept, connect etc. It performs network I/O on behalf of a
+  state machine.
+
+*/
+class NetProcessor:public Processor
+{
+public:
+  /** Options for @c accept.
+   */
+  struct AcceptOptions {
+    typedef AcceptOptions self; ///< Self reference type.
+
+    /// Port on which to listen.
+    /// 0 => don't care, which is useful if the socket is already bound.
+    int local_port;
+    /// Local address to bind for accept.
+    /// If not set -> any address.
+    IpAddr local_ip;
+    /// IP address family.
+    /// @note Ignored if an explicit incoming address is set in the
+    /// the configuration (@c local_ip). If neither is set IPv4 is used.
+    int ip_family;
+    /// Should we use accept threads? If so, how many?
+    int accept_threads;
+    /// Event type to generate on accept.
+    EventType etype;
+    /** If @c true, the continuation is called back with
+	@c NET_EVENT_ACCEPT_SUCCEED
+	or @c NET_EVENT_ACCEPT_FAILED on success and failure resp.
+    */
+    bool f_callback_on_open;
+    /** Accept only on the loopback address.
+        Default: @c false.
+     */
+    bool localhost_only;
+    /// Are frequent accepts expected?
+    /// Default: @c false.
+    bool frequent_accept;
+    bool backdoor;
+
+    /// Socket receive buffer size.
+    /// 0 => OS default.
+    int recv_bufsize;
+    /// Socket transmit buffer size.
+    /// 0 => OS default.
+    int send_bufsize;
+    /// Socket options for @c sockopt.
+    /// 0 => do not set options.
+    uint32_t sockopt_flags;
+    uint32_t packet_mark;
+    uint32_t packet_tos;
+
+    /** Transparency on client (user agent) connection.
+	@internal This is irrelevant at a socket level (since inbound
+	transparency must be set up when the listen socket is created)
+	but it's critical that the connection handling logic knows
+	whether the inbound (client / user agent) connection is
+	transparent.
+    */
+    bool f_inbound_transparent;
+
+    /// Default constructor.
+    /// Instance is constructed with default values.
+    AcceptOptions() { this->reset(); }
+    /// Reset all values to defaults.
+    self& reset();
+  };
+
+  /**
+    Accept connections on a port.
+
+    Callbacks:
+      - cont->handleEvent( NET_EVENT_ACCEPT, NetVConnection *) is
+        called for each new connection
+      - cont->handleEvent(EVENT_ERROR,-errno) on a bad error
+
+    Re-entrant callbacks (based on callback_on_open flag):
+      - cont->handleEvent(NET_EVENT_ACCEPT_SUCCEED, 0) on successful
+        accept init
+      - cont->handleEvent(NET_EVENT_ACCEPT_FAILED, 0) on accept
+        init failure
+
+    @param cont Continuation to be called back with events this
+      continuation is not locked on callbacks and so the handler must
+      be re-entrant.
+    @param opt Accept options.
+    @return Action, that can be cancelled to cancel the accept. The
+      port becomes free immediately.
+   */
+  inkcoreapi virtual Action * accept(
+    Continuation * cont,
+    AcceptOptions const& opt = DEFAULT_ACCEPT_OPTIONS
+  );
+
+  /**
+    Accepts incoming connections on port. Accept connections on port.
+    Accept is done on all net threads and throttle limit is imposed
+    if frequent_accept flag is true. This is similar to the accept
+    method described above. The only difference is that the list
+    of parameter that is takes is limited.
+
+    Callbacks:
+      - cont->handleEvent( NET_EVENT_ACCEPT, NetVConnection *) is called for each new connection
+      - cont->handleEvent(EVENT_ERROR,-errno) on a bad error
+
+    Re-entrant callbacks (based on callback_on_open flag):
+      - cont->handleEvent(NET_EVENT_ACCEPT_SUCCEED, 0) on successful accept init
+      - cont->handleEvent(NET_EVENT_ACCEPT_FAILED, 0) on accept init failure
+
+    @param cont Continuation to be called back with events this
+      continuation is not locked on callbacks and so the handler must
+      be re-entrant.
+    @param listen_socket_in if passed, used for listening.
+    @param opt Accept options.
+    @return Action, that can be cancelled to cancel the accept. The
+      port becomes free immediately.
+
+  */
+  virtual Action *main_accept(
+    Continuation * cont,
+    SOCKET listen_socket_in,
+    AcceptOptions const& opt = DEFAULT_ACCEPT_OPTIONS
+  );
+
+  /**
+    Open a NetVConnection for connection oriented I/O. Connects
+    through sockserver if netprocessor is configured to use socks
+    or is socks parameters to the call are set.
+
+    Re-entrant callbacks:
+      - On success calls: c->handleEvent(NET_EVENT_OPEN, NetVConnection *)
+      - On failure calls: c->handleEvent(NET_EVENT_OPEN_FAILED, -errno)
+
+    @note Connection may not have been established when cont is
+      call back with success. If this behaviour is desired use
+      synchronous connect connet_s method.
+
+    @see connect_s()
+
+    @param cont Continuation to be called back with events.
+    @param addr target address and port to connect to.
+    @param options @see NetVCOptions.
+
+  */
+
+  inkcoreapi Action *connect_re(
+    Continuation * cont,
+    sockaddr const* addr,
+    NetVCOptions * options = NULL
+  );
+
+  /**
+    Open a NetVConnection for connection oriented I/O. This call
+    is simliar to connect method except that the cont is called
+    back only after the connections has been established. In the
+    case of connect the cont could be called back with NET_EVENT_OPEN
+    event and OS could still be in the process of establishing the
+    connection. Re-entrant Callbacks: same as connect. If unix
+    asynchronous type connect is desired use connect_re().
+
+    @param cont Continuation to be called back with events.
+    @param addr Address to which to connect (includes port).
+    @param timeout for connect, the cont will get NET_EVENT_OPEN_FAILED
+      if connection could not be established for timeout msecs. The
+      default is 30 secs.
+    @param options @see NetVCOptions.
+
+    @see connect_re()
+
+  */
+  Action *connect_s(
+    Continuation * cont,
+    sockaddr const* addr,
+    int timeout = NET_CONNECT_TIMEOUT,
+    NetVCOptions * opts = NULL
+  );
+
+  /**
+    Starts the Netprocessor. This has to be called before doing any
+    other net call.
+
+    @param number_of_net_threads is not used. The net processor
+      uses the Event Processor threads for its activity.
+
+  */
+  virtual int start(int number_of_net_threads, size_t stacksize) = 0;
+
+  inkcoreapi virtual NetVConnection *allocate_vc(EThread *) = 0;
+
+  /** Private constructor. */
+  NetProcessor()
+  {
+  };
+
+  /** Private destructor. */
+  virtual ~ NetProcessor() {
+  };
+
+  /** This is MSS for connections we accept (client connections). */
+  static int accept_mss;
+
+  //
+  // The following are required by the SOCKS protocol:
+  //
+  // Either the configuration variables will give your a regular
+  // expression for all the names that are to go through the SOCKS
+  // server, or will give you a list of domain names which should *not* go
+  // through SOCKS. If the SOCKS option is set to false then, these
+  // variables (regular expression or list) should be set
+  // appropriately. If it is set to TRUE then, in addition to supplying
+  // the regular expression or the list, the user should also give the
+  // the ip address and port number for the SOCKS server (use
+  // appropriate defaults)
+
+  /* shared by regular netprocessor and ssl netprocessor */
+  static socks_conf_struct *socks_conf_stuff;
+
+  /// Default options instance.
+  static AcceptOptions const DEFAULT_ACCEPT_OPTIONS;
+
+private:
+
+  /** @note Not implemented. */
+  virtual int stop()
+  {
+    ink_release_assert(!"NetProcessor::stop not implemented");
+    return 1;
+  }
+
+  NetProcessor(const NetProcessor &);
+  NetProcessor & operator =(const NetProcessor &);
+
+};
+
+
+/**
+  Global NetProcessor singleton object for making net calls. All
+  net processor calls like connect, accept, etc are made using this
+  object.
+
+  @code
+    netProcesors.accept(my_cont, ...);
+    netProcessor.connect_re(my_cont, ...);
+  @endcode
+
+*/
+extern inkcoreapi NetProcessor& netProcessor;
+
+/**
+  Global netProcessor singleton object for making ssl enabled net
+  calls. As far as the SM is concerned this behaves exactly like
+  netProcessor. The only difference is that the connections are
+  over ssl.
+
+*/
+extern inkcoreapi NetProcessor& sslNetProcessor;
+
+#endif
diff --git a/iocore/net/I_NetVConnection.h b/iocore/net/I_NetVConnection.h
new file mode 100644
index 00000000..5223267f
--- /dev/null
+++ b/iocore/net/I_NetVConnection.h
@@ -0,0 +1,517 @@
+/** @file
+
+  This file implements an I/O Processor for network I/O
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#ifndef __NETVCONNECTION_H__
+#define __NETVCONNECTION_H__
+
+#include "I_Action.h"
+#include "I_VConnection.h"
+#include "I_Event.h"
+#include "List.h"
+#include "I_IOBuffer.h"
+#include "I_Socks.h"
+#include <ts/apidefs.h>
+
+#define CONNECT_SUCCESS   1
+#define CONNECT_FAILURE   0
+
+#define SSL_EVENT_SERVER 0
+#define SSL_EVENT_CLIENT 1
+
+/** Holds client options for NetVConnection.
+
+    This class holds various options a user can specify for
+    NetVConnection. Various clients need many slightly different
+    features. This is an attempt to prevent out of control growth of
+    the connection method signatures. Only options of interest need to
+    be explicitly set -- the rest get sensible default values.
+
+    @note Binding addresses is a bit complex. It is not currently
+    possible to bind indiscriminately across protocols, which means
+    any connection must commit to IPv4 or IPv6. For this reason the
+    connection logic will look at the address family of @a local_addr
+    even if @a addr_binding is @c ANY_ADDR and bind to any address in
+    that protocol. If it's not an IP protocol, IPv4 will be used.
+*/
+struct NetVCOptions {
+  typedef NetVCOptions self; ///< Self reference type.
+
+  /// Values for valid IP protocols.
+  enum ip_protocol_t {
+    USE_TCP, ///< TCP protocol.
+    USE_UDP ///< UDP protocol.
+  };
+
+  /// IP (TCP or UDP) protocol to use on socket.
+  ip_protocol_t ip_proto;
+
+  /** IP address family.
+
+      This is used for inbound connections only if @c local_ip is not
+      set, which is sometimes more convenient for the client. This
+      defaults to @c AF_INET so if the client sets neither this nor @c
+      local_ip then IPv4 is used.
+
+      For outbound connections this is ignored and the family of the
+      remote address used.
+
+      @note This is (inconsistently) called "domain" and "protocol" in
+      other places. "family" is used here because that's what the
+      standard IP data structures use.
+
+  */
+  uint16_t ip_family;
+
+  /** The set of ways in which the local address should be bound.
+
+      The protocol is set by the contents of @a local_addr regardless
+      of this value. @c ANY_ADDR will override only the address.
+
+      @note The difference between @c INTF_ADDR and @c FOREIGN_ADDR is
+      whether transparency is enabled on the socket. It is the
+      client's responsibility to set this correctly based on whether
+      the address in @a local_addr is associated with an interface on
+      the local system ( @c INTF_ADDR ) or is owned by a foreign
+      system ( @c FOREIGN_ADDR ).  A binding style of @c ANY_ADDR
+      causes the value in @a local_addr to be ignored.
+
+      The IP address and port are separate because most clients treat
+      these independently. For the same reason @c IpAddr is used
+      to be clear that it contains no port data.
+
+      @see local_addr
+      @see addr_binding
+   */
+  enum addr_bind_style {
+    ANY_ADDR, ///< Bind to any available local address (don't care, default).
+    INTF_ADDR, ///< Bind to interface address in @a local_addr.
+    FOREIGN_ADDR ///< Bind to foreign address in @a local_addr.
+  };
+
+  /** Local address for the connection.
+
+      For outbound connections this must have the same family as the
+      remote address (which is not stored in this structure). For
+      inbound connections the family of this value overrides @a
+      ip_family if set.
+
+      @note Ignored if @a addr_binding is @c ANY_ADDR.
+      @see addr_binding
+      @see ip_family
+  */
+  IpAddr local_ip;
+  /** Local port for connection.
+      Set to 0 for "don't care" (default).
+   */
+  uint16_t local_port;
+  /// How to bind the local address.
+  /// @note Default is @c ANY_ADDR.
+  addr_bind_style addr_binding;
+
+  /// Make the socket blocking on I/O (default: @c false)
+  bool f_blocking;
+  /// Make socket block on connect (default: @c false)
+  bool f_blocking_connect;
+
+  /// Control use of SOCKS.
+  /// Set to @c NO_SOCKS to disable use of SOCKS. Otherwise SOCKS is
+  /// used if available.
+  unsigned char socks_support;
+  /// Version of SOCKS to use.
+  unsigned char socks_version;
+
+  int socket_recv_bufsize;
+  int socket_send_bufsize;
+
+  /// Configuration options for sockets.
+  /// @note These are not identical to internal socket options but
+  /// specifically defined for configuration. These are mask values
+  /// and so must be powers of 2.
+  uint32_t sockopt_flags;
+  /// Value for TCP no delay for @c sockopt_flags.
+  static uint32_t const SOCK_OPT_NO_DELAY = 1;
+  /// Value for keep alive for @c sockopt_flags.
+  static uint32_t const SOCK_OPT_KEEP_ALIVE = 2;
+
+  uint32_t packet_mark;
+  uint32_t packet_tos;
+
+  EventType etype;
+
+  /// Reset all values to defaults.
+  void reset();
+
+  void set_sock_param(int _recv_bufsize, int _send_bufsize, unsigned long _opt_flags,
+                      unsigned long _packet_mark = 0, unsigned long _packet_tos = 0);
+
+  NetVCOptions() {
+    reset();
+  }
+
+  /// @name Debugging
+  //@{
+  /// Convert @a s to its string equivalent.
+  static char const* toString(addr_bind_style s);
+  //@}
+};
+
+/**
+  A VConnection for a network socket. Abstraction for a net connection.
+  Similar to a socket descriptor VConnections are IO handles to
+  streams. In one sense, they serve a purpose similar to file
+  descriptors. Unlike file descriptors, VConnections allow for a
+  stream IO to be done based on a single read or write call.
+
+*/
+class NetVConnection:public VConnection
+{
+public:
+
+  /**
+     Initiates read. Thread safe, may be called when not handling
+     an event from the NetVConnection, or the NetVConnection creation
+     callback.
+
+    Callbacks: non-reentrant, c's lock taken during callbacks.
+
+    <table>
+      <tr><td>c->handleEvent(VC_EVENT_READ_READY, vio)</td><td>data added to buffer</td></tr>
+      <tr><td>c->handleEvent(VC_EVENT_READ_COMPLETE, vio)</td><td>finished reading nbytes of data</td></tr>
+      <tr><td>c->handleEvent(VC_EVENT_EOS, vio)</td><td>the stream has been shutdown</td></tr>
+      <tr><td>c->handleEvent(VC_EVENT_ERROR, vio)</td><td>error</td></tr>
+    </table>
+
+    The vio returned during callbacks is the same as the one returned
+    by do_io_read(). The vio can be changed only during call backs
+    from the vconnection.
+
+    @param c continuation to be called back after (partial) read
+    @param nbytes no of bytes to read, if unknown set to INT64_MAX
+    @param buf buffer to put the data into
+    @return vio
+
+  */
+  virtual VIO * do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf) = 0;
+
+  /**
+    Initiates write. Thread-safe, may be called when not handling
+    an event from the NetVConnection, or the NetVConnection creation
+    callback.
+
+    Callbacks: non-reentrant, c's lock taken during callbacks.
+
+    <table>
+      <tr>
+        <td>c->handleEvent(VC_EVENT_WRITE_READY, vio)</td>
+        <td>signifies data has written from the reader or there are no bytes available for the reader to write.</td>
+      </tr>
+      <tr>
+        <td>c->handleEvent(VC_EVENT_WRITE_COMPLETE, vio)</td>
+        <td>signifies the amount of data indicated by nbytes has been read from the buffer</td>
+      </tr>
+      <tr>
+        <td>c->handleEvent(VC_EVENT_ERROR, vio)</td>
+        <td>signified that error occured during write.</td>
+      </tr>
+    </table>
+
+    The vio returned during callbacks is the same as the one returned
+    by do_io_write(). The vio can be changed only during call backs
+    from the vconnection. The vconnection deallocates the reader
+    when it is destroyed.
+
+    @param c continuation to be called back after (partial) write
+    @param nbytes no of bytes to write, if unknown msut be set to INT64_MAX
+    @param buf source of data
+    @param owner
+    @return vio pointer
+
+  */
+  virtual VIO *do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner = false) = 0;
+
+  /**
+    Closes the vconnection. A state machine MUST call do_io_close()
+    when it has finished with a VConenction. do_io_close() indicates
+    that the VConnection can be deallocated. After a close has been
+    called, the VConnection and underlying processor must NOT send
+    any more events related to this VConnection to the state machine.
+    Likeswise, state machine must not access the VConnectuion or
+    any returned VIOs after calling close. lerrno indicates whether
+    a close is a normal close or an abort. The difference between
+    a normal close and an abort depends on the underlying type of
+    the VConnection. Passing VIO::CLOSE for lerrno indicates a
+    normal close while passing VIO::ABORT indicates an abort.
+
+    @param lerrno VIO:CLOSE for regular close or VIO::ABORT for aborts
+
+  */
+  virtual void do_io_close(int lerrno = -1) = 0;
+
+  /**
+    Shuts down read side, write side, or both. do_io_shutdown() can
+    be used to terminate one or both sides of the VConnection. The
+    howto is one of IO_SHUTDOWN_READ, IO_SHUTDOWN_WRITE,
+    IO_SHUTDOWN_READWRITE. Once a side of a VConnection is shutdown,
+    no further I/O can be done on that side of the connections and
+    the underlying processor MUST NOT send any further events
+    (INCLUDING TIMOUT EVENTS) to the state machine. The state machine
+    MUST NOT use any VIOs from a shutdown side of a connection.
+    Even if both sides of a connection are shutdown, the state
+    machine MUST still call do_io_close() when it wishes the
+    VConnection to be deallocated.
+
+    @param howto IO_SHUTDOWN_READ, IO_SHUTDOWN_WRITE, IO_SHUTDOWN_READWRITE
+
+  */
+  virtual void do_io_shutdown(ShutdownHowTo_t howto) = 0;
+
+
+  /**
+    Sends out of band messages over the connection. This function
+    is used to send out of band messages (is this still useful?).
+    cont is called back with VC_EVENT_OOB_COMPLETE - on successful
+    send or VC_EVENT_EOS - if the other side has shutdown the
+    connection. These callbacks could be re-entrant. Only one
+    send_OOB can be in progress at any time for a VC.
+
+    @param cont to be called back with events.
+    @param buf message buffer.
+    @param len length of the message.
+
+  */
+  virtual Action *send_OOB(Continuation * cont, char *buf, int len);
+
+  /**
+    Cancels a scheduled send_OOB. Part of the message could have
+    been sent already. Not callbacks to the cont are made after
+    this call. The Action returned by send_OOB should not be accessed
+    after cancel_OOB.
+
+  */
+  virtual void cancel_OOB();
+
+  ////////////////////////////////////////////////////////////
+  // Set the timeouts associated with this connection.      //
+  // active_timeout is for the total elasped time of        //
+  // the connection.                                        //
+  // inactivity_timeout is the elapsed time from the time   //
+  // a read or a write was scheduled during which the       //
+  // connection  was unable to sink/provide data.           //
+  // calling these functions repeatedly resets the timeout. //
+  // These functions are NOT THREAD-SAFE, and may only be   //
+  // called when handing an  event from this NetVConnection,//
+  // or the NetVConnection creation callback.               //
+  ////////////////////////////////////////////////////////////
+
+  /**
+    Sets time after which SM should be notified.
+
+    Sets the amount of time (in nanoseconds) after which the state
+    machine using the NetVConnection should receive a
+    VC_EVENT_ACTIVE_TIMEOUT event. The timeout is value is ignored
+    if neither the read side nor the write side of the connection
+    is currently active. The timer is reset if the function is
+    called repeatedly This call can be used by SMs to make sure
+    that it does not keep any connections open for a really long
+    time.
+
+    Timeout symantics:
+
+    Should a timeout occur, the state machine for the read side of
+    the NetVConnection is signaled first assuming that a read has
+    been initiated on the NetVConnection and that the read side of
+    the NetVConnection has not been shutdown. Should either of the
+    two conditions not be met, the NetProcessor will attempt to
+    signal the write side. If a timeout is sent to the read side
+    state machine and its handler, return EVENT_DONE, a timeout
+    will not be sent to the write side. Should the return from the
+    handler not be EVENT_DONE and the write side state machine is
+    different (in terms of pointer comparison) from the read side
+    state machine, the NetProcessor will try to signal the write
+    side state machine as well. To signal write side, a write must
+    have been initiated on it and the write must not have been
+    shutdown.
+
+    Receiving a timeout is only a notification that the timer has
+    expired. The NetVConnection is still usable. Further timeouts
+    of the type signaled will not be generated unless the timeout
+    is reset via the set_active_timeout() or set_inactivity_timeout()
+    interfaces.
+
+  */
+  virtual void set_active_timeout(ink_hrtime timeout_in) = 0;
+
+  /**
+    Sets time after which SM should be notified if the requested
+    IO could not be performed. Sets the amount of time (in nanoseconds),
+    if the NetVConnection is idle on both the read or write side,
+    after which the state machine using the NetVConnection should
+    receive a VC_EVENT_INACTIVITY_TIMEOUT event. Either read or
+    write traffic will cause timer to be reset. Calling this function
+    again also resets the timer. The timeout is value is ignored
+    if neither the read side nor the write side of the connection
+    is currently active. See section on timeout semantics above.
+
+   */
+  virtual void set_inactivity_timeout(ink_hrtime timeout_in) = 0;
+
+  /**
+    Clears the active timeout. No active timeouts will be sent until
+    set_active_timeout() is used to reset the active timeout.
+
+  */
+  virtual void cancel_active_timeout() = 0;
+
+  /**
+    Clears the inactivity timeout. No inactivity timeouts will be
+    sent until set_inactivity_timeout() is used to reset the
+    inactivity timeout.
+
+  */
+  virtual void cancel_inactivity_timeout() = 0;
+
+  /** @return the current active_timeout value in nanosecs */
+  virtual ink_hrtime get_active_timeout() = 0;
+
+  /** @return current inactivity_timeout value in nanosecs */
+  virtual ink_hrtime get_inactivity_timeout() = 0;
+
+  /** Returns local sockaddr storage. */
+  sockaddr const* get_local_addr();
+
+  /** Returns local ip.
+      @deprecated get_local_addr() should be used instead for AF_INET6 compatibility.
+  */
+  
+  in_addr_t get_local_ip();
+
+  /** Returns local port. */
+  uint16_t get_local_port();
+
+  /** Returns remote sockaddr storage. */
+  sockaddr const* get_remote_addr();
+
+  /** Returns remote ip. 
+      @deprecated get_remote_addr() should be used instead for AF_INET6 compatibility.
+  */
+  in_addr_t get_remote_ip();
+
+  /** Returns remote port. */
+  uint16_t get_remote_port();
+
+  /** Structure holding user options. */
+  NetVCOptions options;
+
+  /** Attempt to push any changed options down */
+  virtual void apply_options() = 0;
+
+  //
+  // Private
+  //
+
+  //The following variable used to obtain host addr when transparency
+  //is enabled by SocksProxy
+  SocksAddrType socks_addr;
+
+  unsigned int attributes;
+  EThread *thread;
+
+  /// PRIVATE: The public interface is VIO::reenable()
+  virtual void reenable(VIO * vio) = 0;
+
+  /// PRIVATE: The public interface is VIO::reenable()
+  virtual void reenable_re(VIO * vio) = 0;
+
+  /// PRIVATE
+  virtual ~NetVConnection() {}
+
+  /**
+    PRIVATE: instances of NetVConnection cannot be created directly
+    by the state machines. The objects are created by NetProcessor
+    calls like accept connect_re() etc. The constructor is public
+    just to avoid compile errors.
+
+  */
+  NetVConnection();
+
+  virtual SOCKET get_socket() = 0;
+
+  /** Set the TCP initial congestion window */
+  virtual int set_tcp_init_cwnd(int init_cwnd) = 0;
+
+  /** Set local sock addr struct. */
+  virtual void set_local_addr() = 0;
+
+  /** Set remote sock addr struct. */
+  virtual void set_remote_addr() = 0;
+
+  // for InkAPI
+  bool get_is_internal_request() const {
+    return is_internal_request;
+  }
+
+  void set_is_internal_request(bool val = false) {
+    is_internal_request = val;
+  }
+
+  /// Get the transparency state.
+  bool get_is_transparent() const {
+    return is_transparent;
+  }
+  /// Set the transparency state.
+  void set_is_transparent(bool state = true) {
+    is_transparent = state;
+  }
+
+private:
+  NetVConnection(const NetVConnection &);
+  NetVConnection & operator =(const NetVConnection &);
+
+protected:
+  IpEndpoint local_addr;
+  IpEndpoint remote_addr;
+
+  bool got_local_addr;
+  bool got_remote_addr;
+
+  bool is_internal_request;
+  /// Set if this connection is transparent.
+  bool is_transparent;
+};
+
+inline
+NetVConnection::NetVConnection():
+  VConnection(NULL),
+  attributes(0),
+  thread(NULL),
+  got_local_addr(0),
+  got_remote_addr(0),
+  is_internal_request(false),
+  is_transparent(false)
+{
+  ink_zero(local_addr);
+  ink_zero(remote_addr);
+}
+
+#endif
diff --git a/iocore/net/I_SessionAccept.h b/iocore/net/I_SessionAccept.h
new file mode 100644
index 00000000..e6e3b4d7
--- /dev/null
+++ b/iocore/net/I_SessionAccept.h
@@ -0,0 +1,50 @@
+/** @file
+
+  SessionAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef I_SessionAccept_H_
+#define I_SessionAccept_H_
+
+#include "I_Net.h"
+#include "I_VConnection.h"
+
+class SessionAccept: public Continuation
+{
+public:
+  SessionAccept(ProxyMutex *amutex);
+  ~SessionAccept();
+
+  virtual void accept(NetVConnection *, MIOBuffer *, IOBufferReader *) = 0;
+
+  // Virtual function allows creation of an SSLNetAccept
+  // or NetAccept transparent to NetProcessor.
+  //
+  // This function should return a pointer
+  // of NetAccept or its subclass.
+  //
+  virtual void *createNetAccept();
+
+private:
+  virtual int mainEvent(int event, void * netvc) = 0;
+};
+
+#endif /* I_SessionAccept_H_ */
diff --git a/iocore/net/I_Socks.h b/iocore/net/I_Socks.h
new file mode 100644
index 00000000..4dd206ea
--- /dev/null
+++ b/iocore/net/I_Socks.h
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __I_SOCKS_H__
+#define __I_SOCKS_H__
+
+/*When this is being compiled with TS, we enable more features the use
+  non modularized stuff. namely:
+  ip_ranges and multiple socks server support.
+*/
+#define SOCKS_WITH_TS
+
+
+#define SOCKS_DEFAULT_VERSION 0 //defined the configuration variable
+#define SOCKS4_VERSION  4
+#define SOCKS5_VERSION 5
+#define SOCKS_CONNECT  1
+#define SOCKS4_REQ_LEN  9
+#define SOCKS4_REP_LEN  8
+#define SOCKS5_REP_LEN 262      //maximum possible
+#define SOCKS4_REQ_GRANTED 90
+#define SOCKS4_CONN_FAILED 91
+#define SOCKS5_REQ_GRANTED 0
+#define SOCKS5_CONN_FAILED 1
+
+enum
+{
+  //For these two, we need to pick two values which are not used for any of the
+  //"commands" (eg: CONNECT, BIND) in SOCKS protocols.
+  NORMAL_SOCKS = 0,
+  NO_SOCKS = 48
+};
+
+enum
+{
+  SOCKS_ATYPE_NONE = 0,
+  SOCKS_ATYPE_IPV4 = 1,
+  SOCKS_ATYPE_FQHN = 3,
+  SOCKS_ATYPE_IPV6 = 4
+};
+
+struct SocksAddrType
+{
+  unsigned char type;
+  union
+  {
+    //mostly it is ipv4. in other cases we will xalloc().
+    unsigned char ipv4[4];
+    unsigned char *buf;
+  } addr;
+
+  void reset();
+    SocksAddrType():type(SOCKS_ATYPE_NONE)
+  {
+    addr.buf = 0;
+  }
+   ~SocksAddrType()
+  {
+    reset();
+  }
+};
+
+#endif
diff --git a/iocore/net/I_UDPConnection.h b/iocore/net/I_UDPConnection.h
new file mode 100644
index 00000000..91fe2b36
--- /dev/null
+++ b/iocore/net/I_UDPConnection.h
@@ -0,0 +1,110 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  I_UDPConnection.h
+  UDPConnection interface
+
+
+ ****************************************************************************/
+
+#ifndef __I_UDPCONNECTION_H_
+#define __I_UDPCONNECTION_H_
+
+#include "I_EventSystem.h"
+#define INK_ETHERNET_MTU_SIZE 1472
+class UDPPacket;
+/**
+   UDP Connection endpoint
+
+   You can schedule packet to be sent immediately or for the future,
+   and set up a persistent receive() operation.
+ */
+
+class UDPConnection:public Continuation
+{
+public:
+  virtual ~ UDPConnection()
+  {
+  };
+
+  SOCKET getFd();
+  void setBinding(struct sockaddr const *);
+  inkcoreapi int getBinding(struct sockaddr *);
+
+  void destroy();
+  int shouldDestroy();
+  /**
+     <p>
+     <b>Callbacks:</b><br>
+     cont->handleEvent(NET_EVENT_DATAGRAM_WRITE_ERROR, UDPPacket *) on error
+     <br>
+     no callback on success.
+
+     @return Action* send can't be cancelled via this Action
+     @param c continuation to be called back
+     @param p packet to be sent.
+   */
+  Action *send(Continuation * c, UDPPacket * p);
+
+  /**
+     <p>
+     <b>Callbacks:</b><br>
+     cont->handleEvent(NET_EVENT_DATAGRAM_ERROR, UDPConnection *) on error
+     <br>
+     cont->handleEvent(NET_EVENT_DATAGRAM_READ_READY, Queue&lt;UDPPacketInternal&gt; *) on incoming packets.
+
+     @return Action* Always returns ACTION_RESULT_NONE.  Can't be
+     cancelled via this Action.
+     @param c continuation to be called back
+   */
+  Action *recv(Continuation * c);
+
+  void Release();
+  void AddRef();
+  int GetRefCount();
+
+  int getPortNum(void);
+
+  int GetSendGenerationNumber();        //const
+  void SetLastSentPktTSSeqNum(int64_t sentSeqNum);
+  int64_t cancel();
+  void setContinuation(Continuation * c);
+
+  /**
+     Put socket on net queue for read/write polling.
+
+     Not required for UDPConnections created with UDPNetProcessor::UDPBind
+
+     Required for  and UDPNetProcessor::CreateUDPSocket.  They  don't do
+     bindToThread() automatically so that the sockets can be passed to
+     other Continuations.
+  */
+  void bindToThread(Continuation * c);
+
+  virtual void UDPConnection_is_abstract() = 0;
+};
+
+extern UDPConnection *new_UDPConnection(int fd);
+#endif //__I_UDPCONNECTION_H_
diff --git a/iocore/net/I_UDPNet.h b/iocore/net/I_UDPNet.h
new file mode 100644
index 00000000..b2e2d9a5
--- /dev/null
+++ b/iocore/net/I_UDPNet.h
@@ -0,0 +1,113 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  I_UDPNet.h
+  This file provides UDP interface. To be included in I_Net.h
+
+
+ ****************************************************************************/
+
+#ifndef __UDPNET_H_
+#define __UDPNET_H_
+
+#include "I_Version.h"
+#include "I_EventSystem.h"
+#include "ink_inet.h"
+
+/**
+   UDP service
+
+   You can create UDPConnections for asynchronous send/receive or call
+   directly (inefficiently) into network layer.
+ */
+class UDPNetProcessor:public Processor
+{
+public:
+  virtual int start(int n_upd_threads, size_t stacksize) = 0;
+
+  //this function was interanal intially.. this is required for public and
+  //interface probably should change.
+  bool CreateUDPSocket(int *resfd, sockaddr const* remote_addr, sockaddr* local_addr, int* local_addr_len,
+                       Action ** status, int send_bufsize = 0, int recv_bufsize = 0);
+
+  /**
+     create UDPConnection
+
+     Why was this implemented as an asynchronous call?  Just in case
+     Windows requires it...
+     <p>
+     <b>Callbacks:</b><br>
+     cont->handleEvent( NET_EVENT_DATAGRAM_OPEN, UDPConnection *) is
+     called for new socket.
+
+     @param c Continuation that is called back with newly created
+     socket.
+     @param addr Address to bind (includes port)
+     @param send_bufsize (optional) Socket buffer size for sending.
+     Limits how much outstanding data to OS before it is able to send
+     to the NIC.
+     @param recv_bufsize (optional) Socket buffer size for sending.
+     Limits how much can be queued by OS before we read it.
+     @return Action* Always returns ACTION_RESULT_DONE if socket was
+     created successfuly, or ACTION_IO_ERROR if not.
+  */
+  inkcoreapi Action *UDPBind(Continuation * c, sockaddr const* addr, int send_bufsize = 0, int recv_bufsize = 0);
+
+  // Regarding sendto_re, sendmsg_re, recvfrom_re:
+  // * You may be called back on 'c' with completion or error status.
+  // * 'token' is an opaque which can be used by caller to match up the I/O
+  //   with the completion event.
+  // * If IOBufferBlock * is passed in the interface, it is reference
+  //   counted internally.
+  // * For recvfrom_re, data is written beginning at IOBufferBlock::end() and
+  //   the IOBufferBlock is not fill()'ed until I/O actually occurs.  This
+  //   kind of implies that you can only have one outstanding I/O per
+  //   IOBufferBlock
+  // Callback:
+  // * callback signature is: handleEvent(int event,CompletionEvent *cevent);
+  //   where event is one of:
+  //  NET_EVENT_DATAGRAM_WRITE_COMPLETE
+  //  NET_EVENT_DATAGRAM_WRITE_ERROR
+  // * You can get the value of 'token' that you passed in by calling
+  //   completionUtil::getHandle(cevent);
+  // * You can get other info about the completed operation through use
+  //   of the completionUtil class.
+  Action *sendto_re(Continuation * c, void *token, int fd,
+                    sockaddr const* toaddr, int toaddrlen, IOBufferBlock * buf, int len);
+  // I/O buffers referenced by msg must be pinned by the caller until
+  // continuation is called back.
+  Action *sendmsg_re(Continuation * c, void *token, int fd, struct msghdr *msg);
+
+  Action *recvfrom_re(Continuation * c, void *token, int fd,
+                      sockaddr *fromaddr, socklen_t *fromaddrlen,
+                      IOBufferBlock * buf, int len, bool useReadCont = true, int timeout = 0);
+};
+
+inkcoreapi extern UDPNetProcessor & udpNet;
+
+#include "I_UDPPacket.h"
+#include "I_UDPConnection.h"
+
+#endif //__UDPNET_H_
diff --git a/iocore/net/I_UDPPacket.h b/iocore/net/I_UDPPacket.h
new file mode 100644
index 00000000..08dfa889
--- /dev/null
+++ b/iocore/net/I_UDPPacket.h
@@ -0,0 +1,111 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  I_UDPPacket.h
+  UDPPacket interface
+
+
+ ****************************************************************************/
+
+#ifndef __I_UDPPACKET_H_
+#define __I_UDPPACKET_H_
+
+#include "I_UDPConnection.h"
+/** @name UDPPacket
+    UDP packet functions used by UDPConnection
+ */
+//@{
+/**
+   UDP data with destination
+ */
+class UDPPacket
+{
+
+public:
+
+  virtual ~UDPPacket()
+  { }
+
+  virtual void free();          // fast deallocate
+  void setContinuation(Continuation * c);
+  void setConnection(UDPConnection * c);
+  UDPConnection *getConnection();
+  IOBufferBlock *getIOBlockChain();
+  int64_t getPktLength();
+
+  /**
+     Add IOBufferBlock (chain) to end of packet.
+     @param block block chain to add.
+
+   */
+  inkcoreapi void append_block(IOBufferBlock * block);
+
+  IpEndpoint from;    // what address came from
+  IpEndpoint to;      // what address to send to
+
+  int from_size;
+
+  LINK(UDPPacket, link);
+};
+
+/**
+   Create a new packet to be sent over UDPConnection. This actually
+   copies data from a buffer.
+
+
+   @param to  address of where to send packet
+   @param when ink_hrtime relative to ink_get_hrtime_internal()
+   @param buf if !NULL, then len bytes copied from buf and made into packet.
+   @param len # of bytes to copy from buf
+ */
+extern UDPPacket *new_UDPPacket(struct sockaddr const* to, ink_hrtime when = 0, char *buf = NULL, int len = 0);
+/**
+   Create a new packet to be sent over UDPConnection. This clones and
+   makes a reference to an existing IOBufferBlock chain.
+
+
+   @param to  address of where to send packet
+   @param when ink_hrtime relative to ink_get_hrtime_internal()
+   @param block if !NULL, then the IOBufferBlock chain of data to use
+   for packet
+   @param len # of bytes to reference from block
+ */
+
+TS_INLINE UDPPacket *new_UDPPacket(struct sockaddr const* to, ink_hrtime when = 0,
+                                   IOBufferBlock * block = NULL, int len = 0);
+/**
+   Create a new packet to be sent over UDPConnection.  Packet has no
+   destination or data.
+*/
+extern UDPPacket *new_UDPPacket();
+
+/**
+   Create a new packet to be delivered to application.
+   Internal function only
+*/
+extern UDPPacket *new_incoming_UDPPacket(struct sockaddr* from, char *buf, int len);
+
+//@}
+#endif //__I_UDPPACKET_H_
diff --git a/iocore/net/Inline.cc b/iocore/net/Inline.cc
new file mode 100644
index 00000000..f8d0413f
--- /dev/null
+++ b/iocore/net/Inline.cc
@@ -0,0 +1,31 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Inline Functions as globals for users using the public interface
+ *
+ */
+
+#define TS_INLINE
+#include "P_Net.h"
+
diff --git a/iocore/net/Makefile.am b/iocore/net/Makefile.am
new file mode 100644
index 00000000..9ce103f5
--- /dev/null
+++ b/iocore/net/Makefile.am
@@ -0,0 +1,118 @@
+# Makefile.am for the traffic/iocore/net hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+TESTS = $(check_PROGRAMS)
+
+check_PROGRAMS = test_certlookup
+noinst_LIBRARIES = libinknet.a
+
+test_certlookup_SOURCES = \
+  test_certlookup.cc \
+  SSLCertLookup.cc
+
+test_certlookup_LDADD = \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  @OPENSSL_LIBS@
+
+libinknet_a_SOURCES = \
+  Connection.cc \
+  I_Net.h \
+  I_NetProcessor.h \
+  I_NetVConnection.h \
+  I_Socks.h \
+  I_UDPConnection.h \
+  I_UDPNet.h \
+  I_UDPPacket.h \
+  Inline.cc \
+  I_SessionAccept.h \
+  SessionAccept.cc \
+  Net.cc \
+  NetVConnection.cc \
+  P_CompletionUtil.h \
+  P_Connection.h \
+  P_InkBulkIO.h \
+  P_LibBulkIO.h \
+  P_Net.h \
+  P_NetAccept.h \
+  P_NetVConnection.h \
+  P_Socks.h \
+  P_SSLCertLookup.h \
+  P_SSLConfig.h \
+  P_SSLNetAccept.h \
+  P_SSLNetProcessor.h \
+  P_SSLNetVConnection.h \
+  P_SSLNextProtocolAccept.h \
+  P_SSLNextProtocolSet.h \
+  P_SSLUtils.h \
+  P_Socks.h \
+  P_UDPConnection.h \
+  P_UDPIOEvent.h \
+  P_UDPNet.h \
+  P_UDPPacket.h \
+  P_UnixCompletionUtil.h \
+  P_UnixNet.h \
+  P_UnixNetProcessor.h \
+  P_UnixNetState.h \
+  P_UnixNetVConnection.h \
+  P_UnixPollDescriptor.h \
+  P_UnixUDPConnection.h \
+  Socks.cc \
+  SSLCertLookup.cc \
+  SSLConfig.cc \
+  SSLNetAccept.cc \
+  SSLNetProcessor.cc \
+  SSLNetVConnection.cc \
+  SSLNextProtocolAccept.cc \
+  SSLNextProtocolSet.cc \
+  SSLUtils.cc \
+  Socks.cc \
+  UDPIOEvent.cc \
+  UnixConnection.cc \
+  UnixNet.cc \
+  UnixNetAccept.cc \
+  UnixNetPages.cc \
+  UnixNetProcessor.cc \
+  UnixNetVConnection.cc \
+  UnixUDPConnection.cc \
+  UnixUDPNet.cc
+
+#test_UNUSED_SOURCES = \
+#  NetTest-http-server.c \
+#  test_I_Net.cc \
+#  test_I_UDPNet.cc \
+#  test_P_Net.cc \
+#  test_P_UDPNet.cc
+
+if BUILD_TESTS
+  libinknet_a_SOURCES += \
+     NetVCTest.cc \
+     P_NetVCTest.h
+endif
diff --git a/iocore/net/Makefile.in b/iocore/net/Makefile.in
new file mode 100644
index 00000000..81cfd33d
--- /dev/null
+++ b/iocore/net/Makefile.in
@@ -0,0 +1,1353 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/net hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
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+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
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+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+check_PROGRAMS = test_certlookup$(EXEEXT)
+
+#test_UNUSED_SOURCES = \
+#  NetTest-http-server.c \
+#  test_I_Net.cc \
+#  test_I_UDPNet.cc \
+#  test_P_Net.cc \
+#  test_P_UDPNet.cc
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+	$(top_srcdir)/build/aux/test-driver
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+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(libinknet_a_SOURCES) $(test_certlookup_SOURCES)
+DIST_SOURCES = $(am__libinknet_a_SOURCES_DIST) \
+	$(test_certlookup_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+am__tty_colors_dummy = \
+  mgn= red= grn= lgn= blu= brg= std=; \
+  am__color_tests=no
+am__tty_colors = { \
+  $(am__tty_colors_dummy); \
+  if test "X$(AM_COLOR_TESTS)" = Xno; then \
+    am__color_tests=no; \
+  elif test "X$(AM_COLOR_TESTS)" = Xalways; then \
+    am__color_tests=yes; \
+  elif test "X$$TERM" != Xdumb && { test -t 1; } 2>/dev/null; then \
+    am__color_tests=yes; \
+  fi; \
+  if test $$am__color_tests = yes; then \
+    red=''; \
+    grn=''; \
+    lgn=''; \
+    blu=''; \
+    mgn=''; \
+    brg=''; \
+    std=''; \
+  fi; \
+}
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__recheck_rx = ^[ 	]*:recheck:[ 	]*
+am__global_test_result_rx = ^[ 	]*:global-test-result:[ 	]*
+am__copy_in_global_log_rx = ^[ 	]*:copy-in-global-log:[ 	]*
+# A command that, given a newline-separated list of test names on the
+# standard input, print the name of the tests that are to be re-run
+# upon "make recheck".
+am__list_recheck_tests = $(AWK) '{ \
+  recheck = 1; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+        { \
+          if ((getline line2 < ($$0 ".log")) < 0) \
+	    recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[nN][Oo]/) \
+        { \
+          recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[yY][eE][sS]/) \
+        { \
+          break; \
+        } \
+    }; \
+  if (recheck) \
+    print $$0; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# A command that, given a newline-separated list of test names on the
+# standard input, create the global log from their .trs and .log files.
+am__create_global_log = $(AWK) ' \
+function fatal(msg) \
+{ \
+  print "fatal: making $@: " msg | "cat >&2"; \
+  exit 1; \
+} \
+function rst_section(header) \
+{ \
+  print header; \
+  len = length(header); \
+  for (i = 1; i <= len; i = i + 1) \
+    printf "="; \
+  printf "\n\n"; \
+} \
+{ \
+  copy_in_global_log = 1; \
+  global_test_result = "RUN"; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+         fatal("failed to read from " $$0 ".trs"); \
+      if (line ~ /$(am__global_test_result_rx)/) \
+        { \
+          sub("$(am__global_test_result_rx)", "", line); \
+          sub("[ 	]*$$", "", line); \
+          global_test_result = line; \
+        } \
+      else if (line ~ /$(am__copy_in_global_log_rx)[nN][oO]/) \
+        copy_in_global_log = 0; \
+    }; \
+  if (copy_in_global_log) \
+    { \
+      rst_section(global_test_result ": " $$0); \
+      while ((rc = (getline line < ($$0 ".log"))) != 0) \
+      { \
+        if (rc < 0) \
+          fatal("failed to read from " $$0 ".log"); \
+        print line; \
+      }; \
+      printf "\n"; \
+    }; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# Restructured Text title.
+am__rst_title = { sed 's/.*/   &   /;h;s/./=/g;p;x;s/ *$$//;p;g' && echo; }
+# Solaris 10 'make', and several other traditional 'make' implementations,
+# pass "-e" to $(SHELL), and POSIX 2008 even requires this.  Work around it
+# by disabling -e (using the XSI extension "set +e") if it's set.
+am__sh_e_setup = case $$- in *e*) set +e;; esac
+# Default flags passed to test drivers.
+am__common_driver_flags = \
+  --color-tests "$$am__color_tests" \
+  --enable-hard-errors "$$am__enable_hard_errors" \
+  --expect-failure "$$am__expect_failure"
+# To be inserted before the command running the test.  Creates the
+# directory for the log if needed.  Stores in $dir the directory
+# containing $f, in $tst the test, in $log the log.  Executes the
+# developer- defined test setup AM_TESTS_ENVIRONMENT (if any), and
+# passes TESTS_ENVIRONMENT.  Set up options for the wrapper that
+# will run the test scripts (or their associated LOG_COMPILER, if
+# thy have one).
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+$(am__sh_e_setup);					\
+$(am__vpath_adj_setup) $(am__vpath_adj)			\
+$(am__tty_colors);					\
+srcdir=$(srcdir); export srcdir;			\
+case "$@" in						\
+  */*) am__odir=`echo "./$@" | sed 's|/[^/]*$$||'`;;	\
+    *) am__odir=.;; 					\
+esac;							\
+test "x$$am__odir" = x"." || test -d "$$am__odir" 	\
+  || $(MKDIR_P) "$$am__odir" || exit $$?;		\
+if test -f "./$$f"; then dir=./;			\
+elif test -f "$$f"; then dir=;				\
+else dir="$(srcdir)/"; fi;				\
+tst=$$dir$$f; log='$@'; 				\
+if test -n '$(DISABLE_HARD_ERRORS)'; then		\
+  am__enable_hard_errors=no; 				\
+else							\
+  am__enable_hard_errors=yes; 				\
+fi; 							\
+case " $(XFAIL_TESTS) " in				\
+  *[\ \	]$$f[\ \	]* | *[\ \	]$$dir$$f[\ \	]*) \
+    am__expect_failure=yes;;				\
+  *)							\
+    am__expect_failure=no;;				\
+esac; 							\
+$(AM_TESTS_ENVIRONMENT) $(TESTS_ENVIRONMENT)
+# A shell command to get the names of the tests scripts with any registered
+# extension removed (i.e., equivalently, the names of the test logs, with
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+# '$bases'.  This honors runtime overriding of TESTS and TEST_LOGS.  Sadly,
+# we cannot use something simpler, involving e.g., "$(TEST_LOGS:.log=)",
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+am__set_TESTS_bases = \
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+  bases=`for i in $$bases; do echo $$i; done | sed 's/\.log$$//'`; \
+  bases=`echo $$bases`
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+AM_RECURSIVE_TARGETS = check recheck
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+LOG_COMPILE = $(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)
+am__set_b = \
+  case '$@' in \
+    */*) \
+      case '$*' in \
+        */*) b='$*';; \
+          *) b=`echo '$@' | sed 's/\.log$$//'`; \
+       esac;; \
+    *) \
+      b='$*';; \
+  esac
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+netinet_iph = @netinet_iph@
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+sys_ioctlh = @sys_ioctlh@
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+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+TESTS = $(check_PROGRAMS)
+noinst_LIBRARIES = libinknet.a
+test_certlookup_SOURCES = \
+  test_certlookup.cc \
+  SSLCertLookup.cc
+
+test_certlookup_LDADD = \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  @OPENSSL_LIBS@
+
+libinknet_a_SOURCES = Connection.cc I_Net.h I_NetProcessor.h \
+	I_NetVConnection.h I_Socks.h I_UDPConnection.h I_UDPNet.h \
+	I_UDPPacket.h Inline.cc I_SessionAccept.h SessionAccept.cc \
+	Net.cc NetVConnection.cc P_CompletionUtil.h P_Connection.h \
+	P_InkBulkIO.h P_LibBulkIO.h P_Net.h P_NetAccept.h \
+	P_NetVConnection.h P_Socks.h P_SSLCertLookup.h P_SSLConfig.h \
+	P_SSLNetAccept.h P_SSLNetProcessor.h P_SSLNetVConnection.h \
+	P_SSLNextProtocolAccept.h P_SSLNextProtocolSet.h P_SSLUtils.h \
+	P_Socks.h P_UDPConnection.h P_UDPIOEvent.h P_UDPNet.h \
+	P_UDPPacket.h P_UnixCompletionUtil.h P_UnixNet.h \
+	P_UnixNetProcessor.h P_UnixNetState.h P_UnixNetVConnection.h \
+	P_UnixPollDescriptor.h P_UnixUDPConnection.h Socks.cc \
+	SSLCertLookup.cc SSLConfig.cc SSLNetAccept.cc \
+	SSLNetProcessor.cc SSLNetVConnection.cc \
+	SSLNextProtocolAccept.cc SSLNextProtocolSet.cc SSLUtils.cc \
+	Socks.cc UDPIOEvent.cc UnixConnection.cc UnixNet.cc \
+	UnixNetAccept.cc UnixNetPages.cc UnixNetProcessor.cc \
+	UnixNetVConnection.cc UnixUDPConnection.cc UnixUDPNet.cc \
+	$(am__append_1)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
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+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign iocore/net/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign iocore/net/Makefile
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+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
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+clean-noinstLIBRARIES:
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+libinknet.a: $(libinknet_a_OBJECTS) $(libinknet_a_DEPENDENCIES) $(EXTRA_libinknet_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libinknet.a
+	$(AM_V_AR)$(libinknet_a_AR) libinknet.a $(libinknet_a_OBJECTS) $(libinknet_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libinknet.a
+
+clean-checkPROGRAMS:
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+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+test_certlookup$(EXEEXT): $(test_certlookup_OBJECTS) $(test_certlookup_DEPENDENCIES) $(EXTRA_test_certlookup_DEPENDENCIES) 
+	@rm -f test_certlookup$(EXEEXT)
+	$(AM_V_CXXLD)$(CXXLINK) $(test_certlookup_OBJECTS) $(test_certlookup_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
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+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Connection.Po@am__quote@
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+	fi
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+
+GTAGS:
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+# Recover from deleted '.trs' file; this should ensure that
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+.log.trs:
+	rm -f $< $@
+	$(MAKE) $(AM_MAKEFLAGS) $<
+
+# Leading 'am--fnord' is there to ensure the list of targets does not
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+	if $(am__make_dryrun); then :; else \
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+	    test -f $$i.log && test -r $$i.log \
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+	  test $$st -eq 0 || exit 1; \
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+	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
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+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+test_certlookup.log: test_certlookup$(EXEEXT)
+	@p='test_certlookup$(EXEEXT)'; \
+	b='test_certlookup'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.test.log:
+	@p='$<'; \
+	$(am__set_b); \
+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+@am__EXEEXT_TRUE@	--log-file $$b.log --trs-file $$b.trs \
+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-noinstLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-TESTS check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-noinstLIBRARIES cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am recheck tags tags-am uninstall \
+	uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/iocore/net/Net.cc b/iocore/net/Net.cc
new file mode 100644
index 00000000..11c0c483
--- /dev/null
+++ b/iocore/net/Net.cc
@@ -0,0 +1,131 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/************************************************************************
+
+   Net.cc
+
+
+************************************************************************/
+
+#include "P_Net.h"
+
+RecRawStatBlock *net_rsb = NULL;
+int net_config_poll_timeout = -1; // This will get set via either command line or records.config.
+
+static inline void
+configure_net(void)
+{
+  REC_RegisterConfigUpdateFunc("proxy.config.net.connections_throttle", change_net_connections_throttle, NULL);
+  REC_ReadConfigInteger(fds_throttle, "proxy.config.net.connections_throttle");
+}
+
+
+static inline void
+register_net_stats()
+{
+  //
+  // Register statistics
+  //
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.net_handler_run",
+                     RECD_INT, RECP_PERSISTENT, (int) net_handler_run_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_handler_run_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.read_bytes",
+                     RECD_INT, RECP_PERSISTENT, (int) net_read_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.write_bytes",
+                     RECD_INT, RECP_PERSISTENT, (int) net_write_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.connections_currently_open",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) net_connections_currently_open_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_connections_currently_open_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.accepts_currently_open",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) net_accepts_currently_open_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_accepts_currently_open_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_readfromnet",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_readfromnet_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_readfromnet_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_readfromnet_afterpoll",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_readfromnet_afterpoll_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_readfromnet_afterpoll_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_read",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_read_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_read_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_read_nodata",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_read_nodata_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_read_nodata_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_writetonet",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_writetonet_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_writetonet_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_writetonet_afterpoll",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_writetonet_afterpoll_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_writetonet_afterpoll_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_write",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_write_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_write_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.calls_to_write_nodata",
+                     RECD_INT, RECP_PERSISTENT, (int) net_calls_to_write_nodata_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(net_calls_to_write_nodata_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.socks.connections_successful",
+                     RECD_INT, RECP_PERSISTENT, (int) socks_connections_successful_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.socks.connections_unsuccessful",
+                     RECD_INT, RECP_PERSISTENT, (int) socks_connections_unsuccessful_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.socks.connections_currently_open",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) socks_connections_currently_open_stat, RecRawStatSyncSum);
+  NET_CLEAR_DYN_STAT(socks_connections_currently_open_stat);
+
+  RecRegisterRawStat(net_rsb, RECT_PROCESS, "proxy.process.net.inactivity_cop_lock_acquire_failure",
+                     RECD_INT, RECP_PERSISTENT, (int) inactivity_cop_lock_acquire_failure_stat,
+                     RecRawStatSyncSum);
+}
+
+void
+ink_net_init(ModuleVersion version)
+{
+  static int init_called = 0;
+
+  ink_release_assert(!checkModuleVersion(version, NET_SYSTEM_MODULE_VERSION));
+  if (!init_called) {
+    // do one time stuff
+    // create a stat block for NetStats
+    net_rsb = RecAllocateRawStatBlock((int) Net_Stat_Count);
+    configure_net();
+    register_net_stats();
+  }
+
+  init_called = 1;
+}
diff --git a/iocore/net/NetTest-http-server.c b/iocore/net/NetTest-http-server.c
new file mode 100644
index 00000000..4fdde309
--- /dev/null
+++ b/iocore/net/NetTest-http-server.c
@@ -0,0 +1,195 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+IOBufferBlock *resp_blk;
+int doc_len;
+
+struct NetTesterSM:public Continuation
+{
+  VIO *read_vio;
+  IOBufferReader *reader, *resp_reader;
+  NetVConnection *vc;
+  MIOBuffer *req_buf, *resp_buf;
+  char request[2000];
+  int req_len;
+
+
+    NetTesterSM(ProxyMutex * _mutex, NetVConnection * _vc):Continuation(_mutex)
+  {
+    MUTEX_TRY_LOCK(lock, mutex, _vc->thread);
+    ink_release_assert(lock);
+    vc = _vc;
+    Debug("net_test", "Accepted a connection");
+    SET_HANDLER(&NetTesterSM::handle_read);
+    req_buf = new_MIOBuffer(1);
+    reader = req_buf->alloc_reader();
+    read_vio = vc->do_io_read(this, INT64_MAX, req_buf);
+    //vc->set_inactivity_timeout(HRTIME_SECONDS(60));
+    resp_buf = new_empty_MIOBuffer(6);
+    resp_buf->append_block(resp_blk->clone());
+    req_len = 0;
+    resp_reader = resp_buf->alloc_reader();
+  }
+
+
+   ~NetTesterSM()
+  {
+    req_buf->dealloc_all_readers();
+    req_buf->clear();
+    free_MIOBuffer(req_buf);
+
+    resp_buf->dealloc_all_readers();
+    resp_buf->clear();
+    free_MIOBuffer(resp_buf);
+  }
+
+  /* ********************* jtest sample request   **********************
+     GET http://npdev:8080/0.5216393021/6000 HTTP/1.0
+     Proxy-Connection: Keep-Alive
+   */
+
+  int handle_read(int event, void *data)
+  {
+    int r;
+    char *str;
+    switch (event) {
+    case VC_EVENT_READ_READY:
+      r = reader->read_avail();
+      reader->read(&request[req_len], r);
+      req_len += r;
+      request[req_len] = 0;
+      Debug("net_test", "%s\n", request);
+      fflush(stdout);
+      //vc->set_inactivity_timeout(HRTIME_SECONDS(30));
+      if (strcmp(&request[req_len - 4], "\r\n\r\n") == 0) {
+        Debug("net_test", "The request header is :\n%s\n", request);
+        // parse and get the doc size
+        SET_HANDLER(&NetTesterSM::handle_write);
+        ink_assert(doc_len == resp_reader->read_avail());
+        vc->do_io_write(this, doc_len, resp_reader);
+        //vc->set_inactivity_timeout(HRTIME_SECONDS(10));
+      }
+      break;
+    case VC_EVENT_READ_COMPLETE:
+      /* FALLSTHROUGH */
+    case VC_EVENT_EOS:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      Debug("net_test", "%s", str);
+      fflush(stdout);
+    case VC_EVENT_ERROR:
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+      vc->do_io_close();
+      // fixme
+      // handle timeout events
+      break;
+    default:
+      ink_release_assert(!"unknown event");
+
+    }
+    return EVENT_CONT;
+  }
+
+
+  int handle_write(int event, Event * e)
+  {
+    switch (event) {
+    case VC_EVENT_WRITE_READY:
+      break;
+
+    case VC_EVENT_WRITE_COMPLETE:
+    case VC_EVENT_EOS:
+    case VC_EVENT_ERROR:
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+      vc->do_io_close();
+      delete this;
+      return EVENT_DONE;
+      break;
+    default:
+      ink_release_assert(!"unknown event");
+    }
+    return EVENT_CONT;
+  }
+
+
+
+};
+
+
+struct NetTesterAccept:public Continuation
+{
+
+  NetTesterAccept(ProxyMutex * _mutex):Continuation(_mutex)
+  {
+    SET_HANDLER(&NetTesterAccept::handle_accept);
+  }
+
+  int handle_accept(int event, void *data)
+  {
+    Debug("net_test", "Accepted a connection\n");
+    fflush(stdout);
+    NetVConnection *vc = (NetVConnection *) data;
+    new NetTesterSM(new_ProxyMutex(), vc);
+    return EVENT_CONT;
+  }
+
+
+};
+
+
+
+struct Stop:public Continuation
+{
+  Action *a;
+    Stop(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER(&Stop::stop);
+  }
+
+  int stop(int event, Event * e)
+  {
+    a->cancel();
+    return EVENT_DONE;
+  }
+};
+
+
+int
+test_main()
+{
+  const char *response_hdr = "HTTP/1.0 200 OK\n" "Content-Type: text/html\n" "Content-Length: 8000\r\n\r\n";
+
+  resp_blk = new_IOBufferBlock();
+  resp_blk->alloc(6);
+  char *b = resp_blk->start();
+  ink_strlcpy(b, response_hdr, resp_blk->block_size());
+  memset(b + strlen(response_hdr), 'x', 8000);
+  resp_blk->fill(doc_len = strlen(response_hdr) + 8000);
+
+  Action *a = sslNetProcessor.accept(new NetTesterAccept(new_ProxyMutex()), 8080, true);
+
+  return 0;
+}
diff --git a/iocore/net/NetVCTest.cc b/iocore/net/NetVCTest.cc
new file mode 100644
index 00000000..55844f76
--- /dev/null
+++ b/iocore/net/NetVCTest.cc
@@ -0,0 +1,418 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   NetVCTest.cc
+
+   Description:
+       Unit test for infastructure for VConnections implementing the
+         NetVConnection interface
+
+
+
+
+ ****************************************************************************/
+
+#include "P_Net.h"
+
+// Each test requires two definition entries.  One for the passive
+//   side of the connection and one for the active side
+//
+//  test fields:
+//
+//  name bytes_to_send nbytes_write bytes_to_read nbytes_read write_per timeout read_term write_term
+//
+NVC_test_def netvc_tests_def[] = {
+
+  {"basic", 2000, 2000, 2000, 2000, 50, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+  {"basic", 2000, 2000, 2000, 2000, 50, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  {"basic2", 10001, 10001, 5001, 5001, 1024, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+  {"basic2", 5001, 5001, 10001, 10001, 1024, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  {"large", 1000000, 1000000, 500000, 500000, 8192, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+  {"large", 500000, 500000, 1000000, 1000000, 8192, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  // Test large block transfers
+  {"larget", 1000000, 1000000, 500000, 500000, 40000, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+  {"larget", 500000, 500000, 1000000, 1000000, 40000, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  {"eos", 4000, 4000, 10, 10, 8192, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+  {"eos", 10, 10, 6000, 6000, 8192, 10, VC_EVENT_EOS, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  {"werr", 4000, 4000, 10, 10, 129, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_ERROR}
+  ,
+  {"werr", 10, 10, 10, 10, 129, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  {"itimeout", 6000, 8000, 10, 10, 512, 10, VC_EVENT_READ_COMPLETE, VC_EVENT_INACTIVITY_TIMEOUT}
+  ,
+  {"itimeout", 10, 10, 6000, 8000, 512, 20, VC_EVENT_EOS, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  // Test the small transfer code one byts at a time
+  {"smallt", 400, 400, 500, 500, 1, 15, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+  {"smallt", 500, 500, 400, 400, 1, 15, VC_EVENT_READ_COMPLETE, VC_EVENT_WRITE_COMPLETE}
+  ,
+
+  // The purpose of this test is show that stack can over flow if we move too
+  //   small of blocks between the buffers.  EVENT_NONE is wild card error event
+  //   since which side gets the timeout is unpredictable
+  {"overflow", 1000000, 1000000, 50, 50, 1, 20, VC_EVENT_READ_COMPLETE, EVENT_NONE}
+  ,
+  {"overflow", 50, 50, 0, 35000, 1024, 35, EVENT_NONE, VC_EVENT_WRITE_COMPLETE}
+
+};
+const unsigned num_netvc_tests = countof(netvc_tests_def);
+
+
+NetVCTest::NetVCTest():
+Continuation(NULL),
+test_cont_type(NET_VC_TEST_ACTIVE),
+test_vc(NULL), regress(NULL), driver(NULL), read_vio(NULL),
+write_vio(NULL), read_buffer(NULL), write_buffer(NULL),
+reader_for_rbuf(NULL), reader_for_wbuf(NULL), write_bytes_to_add_per(0),
+timeout(0),
+actual_bytes_read(0), actual_bytes_sent(0), write_done(false), read_done(false),
+read_seed(0), write_seed(0), bytes_to_send(0), bytes_to_read(0),
+nbytes_read(0), nbytes_write(0), expected_read_term(0),
+expected_write_term(0), test_name(NULL), module_name(NULL), debug_tag(NULL)
+{
+}
+
+NetVCTest::~NetVCTest()
+{
+  mutex = NULL;
+
+  if (read_buffer) {
+    Debug(debug_tag, "Freeing read MIOBuffer with %d blocks on %s",
+          read_buffer->max_block_count(), (test_cont_type == NET_VC_TEST_ACTIVE) ? "Active" : "Passive");
+    free_MIOBuffer(read_buffer);
+    read_buffer = NULL;
+  }
+
+  if (write_buffer) {
+    Debug(debug_tag, "Freeing write MIOBuffer with %d blocks on %s",
+          write_buffer->max_block_count(), (test_cont_type == NET_VC_TEST_ACTIVE) ? "Active" : "Passive");
+    free_MIOBuffer(write_buffer);
+    write_buffer = NULL;
+  }
+}
+
+void
+NetVCTest::init_test(NetVcTestType_t c_type, NetTestDriver * driver_arg,
+                     NetVConnection * nvc, RegressionTest * robj,
+                     NVC_test_def * my_def, const char *module_name_arg, const char *debug_tag_arg)
+{
+
+  test_cont_type = c_type;
+  driver = driver_arg;
+  test_vc = nvc;
+  regress = robj;
+  module_name = module_name_arg;
+  debug_tag = debug_tag_arg;
+
+  bytes_to_send = my_def->bytes_to_send;
+  bytes_to_read = my_def->bytes_to_read;
+
+  nbytes_read = my_def->nbytes_read;
+  nbytes_write = my_def->nbytes_write;
+
+  write_bytes_to_add_per = my_def->write_bytes_per;
+  timeout = my_def->timeout;
+  expected_read_term = my_def->expected_read_term;
+  expected_write_term = my_def->expected_write_term;
+  test_name = my_def->test_name;
+
+  mutex = new_ProxyMutex();
+  SET_HANDLER(&NetVCTest::main_handler);
+
+  if (c_type == NET_VC_TEST_ACTIVE) {
+    start_test();
+  }
+}
+
+void
+NetVCTest::start_test()
+{
+
+  test_vc->set_inactivity_timeout(HRTIME_SECONDS(timeout));
+  test_vc->set_active_timeout(HRTIME_SECONDS(timeout + 5));
+
+  read_buffer = new_MIOBuffer();
+  write_buffer = new_MIOBuffer();
+
+  reader_for_rbuf = read_buffer->alloc_reader();
+  reader_for_wbuf = write_buffer->alloc_reader();
+
+  if (nbytes_read > 0) {
+    read_vio = test_vc->do_io_read(this, nbytes_read, read_buffer);
+  } else {
+    read_done = true;
+  }
+
+  if (nbytes_write > 0) {
+    write_vio = test_vc->do_io_write(this, nbytes_write, reader_for_wbuf);
+  } else {
+    write_done = true;
+  }
+}
+
+
+int
+NetVCTest::fill_buffer(MIOBuffer * buf, uint8_t * seed, int bytes)
+{
+
+  char *space = (char *)ats_malloc(bytes);
+  char *tmp = space;
+  int to_add = bytes;
+
+  while (bytes > 0) {
+    *tmp = *seed;
+    (*seed)++;
+    bytes--;
+    tmp++;
+  }
+
+  buf->write(space, to_add);
+  ats_free(space);
+
+  return to_add;
+}
+
+int
+NetVCTest::consume_and_check_bytes(IOBufferReader * r, uint8_t * seed)
+{
+
+  uint8_t *tmp, *end;
+  int b_consumed = 0;
+
+  if (actual_bytes_read >= bytes_to_read) {
+    return 1;
+  }
+
+  while (r->read_avail() > 0) {
+    int64_t b_avail = r->block_read_avail();
+
+    tmp = (uint8_t *) r->start();
+    end = tmp + b_avail;
+    b_consumed = 0;
+
+    while (tmp < end && actual_bytes_read < bytes_to_read) {
+      actual_bytes_read++;
+      b_consumed++;
+      if (*tmp != *seed) {
+        r->consume(b_consumed);
+        return 0;
+
+      } else {
+        tmp++;
+        (*seed)++;
+      }
+    }
+
+    Debug(debug_tag, "consume_&_check: read %d, to_read %d", actual_bytes_read, bytes_to_read);
+    r->consume(b_consumed);
+  }
+
+  return 1;
+}
+
+void
+NetVCTest::write_finished()
+{
+  if (nbytes_write != write_vio->ndone && expected_write_term == VC_EVENT_WRITE_COMPLETE) {
+    record_error("write: bad ndone value");
+    return;
+  }
+
+  write_done = true;
+
+  if (read_done) {
+    test_vc->do_io_close();
+    finished();
+  } else {
+    test_vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+  }
+}
+
+void
+NetVCTest::read_finished()
+{
+  if (nbytes_read != read_vio->ndone && expected_read_term != VC_EVENT_EOS && expected_read_term != VC_EVENT_NONE) {
+    record_error("read: bad ndone value");
+    return;
+  }
+
+  read_done = true;
+
+  if (write_done) {
+    test_vc->do_io_close();
+    finished();
+  } else {
+    test_vc->do_io_shutdown(IO_SHUTDOWN_READ);
+  }
+}
+
+void
+NetVCTest::record_error(const char *msg)
+{
+
+  rprintf(regress, "  %s test: %s failed : %s : on %s\n",
+          module_name, test_name, msg, (test_cont_type == NET_VC_TEST_ACTIVE) ? "Active" : "Passive");
+  ink_atomic_increment(&driver->errors, 1);
+
+  test_vc->do_io_close();
+  finished();
+}
+
+void
+NetVCTest::finished()
+{
+  eventProcessor.schedule_imm(driver);
+  delete this;
+}
+
+void
+NetVCTest::write_handler(int event)
+{
+
+  Debug(debug_tag, "write_handler received event %d on %s",
+        event, (test_cont_type == NET_VC_TEST_ACTIVE) ? "Active" : "Passive");
+
+  switch (event) {
+  case VC_EVENT_WRITE_READY:
+    if (write_vio->ndone < bytes_to_send) {
+      int left_to_send = bytes_to_send - actual_bytes_sent;
+      ink_assert(left_to_send >= 0);
+      int to_fill = MIN(left_to_send, write_bytes_to_add_per);
+      actual_bytes_sent += fill_buffer(write_buffer, &write_seed, to_fill);
+      write_vio->reenable();
+    }
+    break;
+  case VC_EVENT_WRITE_COMPLETE:
+    write_finished();
+    break;
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_ERROR:
+    if (expected_write_term != event && expected_write_term != VC_EVENT_NONE) {
+      record_error("write: Unexpected error or timeout");
+    } else {
+      write_finished();
+    }
+    break;
+  default:
+    record_error("write: Unknown event");
+    break;
+  }
+}
+
+void
+NetVCTest::read_handler(int event)
+{
+
+  Debug(debug_tag, "read_handler received event %d on %s",
+        event, (test_cont_type == NET_VC_TEST_ACTIVE) ? "Active" : "Passive");
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+    if (consume_and_check_bytes(reader_for_rbuf, &read_seed) == 0) {
+      record_error("Read content corrupt");
+      return;
+    } else {
+      read_vio->reenable();
+    }
+    break;
+  case VC_EVENT_READ_COMPLETE:
+    if (consume_and_check_bytes(reader_for_rbuf, &read_seed) == 0) {
+      record_error("Read content corrupt");
+      return;
+    } else {
+      read_finished();
+    }
+    break;
+  case VC_EVENT_EOS:
+    if (expected_read_term != VC_EVENT_EOS && expected_read_term != VC_EVENT_NONE) {
+      record_error("read: Unexpected EOS Event");
+    } else {
+      read_finished();
+    }
+    break;
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_ERROR:
+    if (expected_read_term != event && expected_read_term != VC_EVENT_NONE) {
+      record_error("read: Unexpected error or timeout");
+    } else {
+      read_finished();
+    }
+    break;
+  default:
+    record_error("read: Unknown event");
+    break;
+  }
+}
+
+int
+NetVCTest::main_handler(int event, void *data)
+{
+
+  if (event == NET_EVENT_ACCEPT) {
+    test_vc = (NetVConnection *) data;
+    start_test();
+    return 0;
+  }
+
+  if (data == read_vio) {
+    read_handler(event);
+  } else if (data == write_vio) {
+    write_handler(event);
+  } else {
+    record_error("main: unknown event");
+  }
+
+  return 0;
+}
+
+
+NetTestDriver::NetTestDriver():
+Continuation(NULL), errors(0), r(NULL), pstatus(NULL)
+{
+}
+
+NetTestDriver::~NetTestDriver()
+{
+}
diff --git a/iocore/net/NetVConnection.cc b/iocore/net/NetVConnection.cc
new file mode 100644
index 00000000..1050a470
--- /dev/null
+++ b/iocore/net/NetVConnection.cc
@@ -0,0 +1,46 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  NetVConnection.cc
+
+  This file implements an I/O Processor for network I/O.
+
+
+ ****************************************************************************/
+
+#include "P_Net.h"
+
+Action *
+NetVConnection::send_OOB(Continuation *, char *, int)
+{
+  return ACTION_RESULT_DONE;
+}
+
+void
+NetVConnection::cancel_OOB()
+{
+  return;
+}
+
diff --git a/iocore/net/P_CompletionUtil.h b/iocore/net/P_CompletionUtil.h
new file mode 100644
index 00000000..13427589
--- /dev/null
+++ b/iocore/net/P_CompletionUtil.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _COMPLETION_UTIL_H_
+#define _COMPLETION_UTIL_H_
+// interface
+class completionUtil
+{
+public:
+  static Event *create();
+  static void destroy(Event * e);
+  static void setThread(Event * e, EThread * t);
+  static void setContinuation(Event * e, Continuation * c);
+  static void *getHandle(Event * e);
+  static void setHandle(Event * e, void *handle);
+  static void setInfo(Event * e, int fd, IOBufferBlock * buf, int actual, int errno_);
+  static void setInfo(Event * e, int fd, struct msghdr *msg, int actual, int errno_);
+  static int getBytesTransferred(Event * e);
+  static IOBufferBlock *getIOBufferBlock(Event * e);
+  static Continuation *getContinuation(Event * e);
+  static int getError(Event * e);
+  static void releaseReferences(Event * e);
+};
+
+#include "P_UnixCompletionUtil.h"
+
+#endif
diff --git a/iocore/net/P_Connection.h b/iocore/net/P_Connection.h
new file mode 100644
index 00000000..e2fed75a
--- /dev/null
+++ b/iocore/net/P_Connection.h
@@ -0,0 +1,196 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+
+  Connection.h
+  Description:
+  struct Connection
+  struct Server
+  struct ConnectionManager
+
+  struct ConnectionManager
+  ========================
+
+  struct ConnectionManager provides the interface for network or disk
+  connections.  There is a global ConnectionManager in the system
+  (connectionManager).
+
+  Connection * connect()
+  Connection * accept()
+
+  The accept call is a blocking call while connect is non-blocking. They
+  returns a new Connection instance which is an handle to the newly created
+  connection. The connection `q instance can be used later for read/writes
+  using an intance of IOProcessor class.
+
+
+  **************************************************************************/
+
+#ifndef __CONNECTION_H__
+#define __CONNECTION_H__
+
+#include "libts.h"
+
+struct NetVCOptions;
+
+//
+// Defines
+//
+
+#define NON_BLOCKING_CONNECT     true
+#define BLOCKING_CONNECT         false
+#define CONNECT_WITH_TCP         true
+#define CONNECT_WITH_UDP         false
+#define NON_BLOCKING             true
+#define BLOCKING                 false
+#define BIND_RANDOM_PORT         true
+#define BIND_ANY_PORT            false
+#define ENABLE_MC_LOOPBACK       true
+#define DISABLE_MC_LOOPBACK      false
+#define BC_NO_CONNECT      	 true
+#define BC_CONNECT      	 false
+#define BC_NO_BIND      	 true
+#define BC_BIND      	 	 false
+
+///////////////////////////////////////////////////////////////////////
+//
+// Connection
+//
+///////////////////////////////////////////////////////////////////////
+struct Connection
+{
+  SOCKET fd; ///< Socket for connection.
+  IpEndpoint addr; ///< Associated address.
+  bool is_bound; ///< Flag for already bound to a local address.
+  bool is_connected; ///< Flag for already connected.
+  int sock_type;
+
+  /** Create and initialize the socket for this connection.
+
+      A socket is created and the options specified by @a opt are
+      set. The socket is @b not connected.
+
+      @note It is important to pass the same @a opt to this method and
+      @c connect.
+
+      @return 0 on success, -ERRNO on failure.
+      @see connect
+  */
+  int open(
+	   NetVCOptions const& opt = DEFAULT_OPTIONS ///< Socket options.
+	   );
+
+  /** Connect the socket.
+
+      The socket is connected to the remote @a addr and @a port. The
+      @a opt structure is used to control blocking on the socket. All
+      other options are set via @c open. It is important to pass the
+      same @a opt to this method as was passed to @c open.
+
+      @return 0 on success, -ERRNO on failure.
+      @see open
+  */
+  int connect(
+           sockaddr const* to, ///< Remote address and port.
+	   NetVCOptions const& opt = DEFAULT_OPTIONS ///< Socket options
+	   );
+
+
+  /// Set the internal socket address struct.
+  /// @internal Used only by ICP.
+  void setRemote(
+    sockaddr const* remote_addr ///< Address and port.
+  ) {
+    ats_ip_copy(&addr, remote_addr);
+  }
+
+  int setup_mc_send(sockaddr const* mc_addr,
+                    sockaddr const* my_addr,
+                    bool non_blocking = NON_BLOCKING,
+                    unsigned char mc_ttl = 1, bool mc_loopback = DISABLE_MC_LOOPBACK, Continuation * c = NULL);
+
+  int setup_mc_receive(sockaddr const* from,
+                       sockaddr const* my_addr,
+                       bool non_blocking = NON_BLOCKING, Connection * sendchan = NULL, Continuation * c = NULL);
+
+  int close();                  // 0 on success, -errno on failure
+
+  void apply_options(NetVCOptions const& opt);
+
+  virtual ~ Connection();
+  Connection();
+
+  /// Default options.
+  static NetVCOptions const DEFAULT_OPTIONS;
+
+protected:
+  void _cleanup();
+};
+
+///////////////////////////////////////////////////////////////////////
+//
+// Server
+//
+///////////////////////////////////////////////////////////////////////
+struct Server: public Connection
+{
+  /// Client side (inbound) local IP address.
+  IpEndpoint accept_addr;
+
+  /// If set, the related incoming connect was transparent.
+  bool f_inbound_transparent;
+
+  /// If set, a kernel HTTP accept filter
+  bool http_accept_filter;
+
+  //
+  // Use this call for the main proxy accept
+  //
+  int proxy_listen(bool non_blocking = false);
+
+  int accept(Connection * c);
+
+  //
+  // Listen on a socket. We assume the port is in host by order, but
+  // that the IP address (specified by accept_addr) has already been
+  // converted into network byte order
+  //
+
+  int listen(bool non_blocking = false, int recv_bufsize = 0, int send_bufsize = 0, bool transparent = false);
+  int setup_fd_for_listen(
+    bool non_blocking = false,
+    int recv_bufsize = 0,
+    int send_bufsize = 0,
+    bool transparent = false ///< Inbound transparent.
+  );
+
+  Server()
+    : Connection()
+    , f_inbound_transparent(false)
+  {
+    ink_zero(accept_addr);
+  }
+};
+
+#endif /*_Connection_h*/
diff --git a/iocore/net/P_InkBulkIO.h b/iocore/net/P_InkBulkIO.h
new file mode 100644
index 00000000..19c15c57
--- /dev/null
+++ b/iocore/net/P_InkBulkIO.h
@@ -0,0 +1,179 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef _INK_BULK_IO_H
+#define _INK_BULK_IO_H
+
+#ifndef _KERNEL_
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#endif
+
+/*
+ * We are following the convention of the ioctl cmd constants:
+ *  - the first 8 bits contain the character representing the device
+ *  - bits 8-15 refer to the ioctl
+ */
+#define INKBIO_IOC ('x' << 8)   /* 'x' to represent 'xx' */
+
+#define INKBIO_SEND      (INKBIO_IOC | 1)
+#define INKBIO_BALLOC    (INKBIO_IOC | 2)
+
+#define INKBIO_GET_STATS (INKBIO_IOC | 3)
+
+#define INKBIO_NOP       (INKBIO_IOC | 7)
+#define INKBIO_MEMCPY    (INKBIO_IOC | 8)
+
+/* For ioctl's that are destined to the STREAMS module for getting at q ptrs */
+#define INKBIO_REGISTER   1024
+
+#define INKBIO_MAX_BLOCKS 512
+
+/* 1500 bytes of data; 100 bytes for header */
+#define INKBIO_MTU_SIZE 1500
+#define INKBIO_PKT_SIZE_WITH_UDPHDR (INKBIO_MTU_SIZE - (sizeof(struct ip) + sizeof(struct udphdr)))
+#define INKBIO_PKT_SIZE_WO_UDPHDR (INKBIO_MTU_SIZE - sizeof(struct ip))
+/* 100 for ethernet and anything else; 20 for ip---every pkt got an ip header */
+#define INKBIO_PKT_HEADER_SIZE (100 + sizeof(struct ip))
+#define INKBIO_PKT_FOOTER_SIZE 0
+#define INKBIO_BLOCK_SIZE (INKBIO_MTU_SIZE + INKBIO_PKT_HEADER_SIZE + INKBIO_PKT_FOOTER_SIZE)
+
+#define INKBIO_MAX_UMEM_SIZE (INKBIO_BLOCK_SIZE * INKBIO_MAX_BLOCKS)
+/*
+ * Describes a block of BulkIO memory
+ */
+struct InkBulkIOBlock
+{
+  void *ptr;                    /* where is it at */
+  uint32_t id;
+};
+
+typedef struct
+{
+  uint32_t nextFreeIdx;
+  uint32_t numFreeBlocks;
+  uint32_t freeBlockId[INKBIO_MAX_BLOCKS];
+} InkBulkIOFreeBlockInfo_t;
+
+
+/*
+ * Describes a packet to be sent.  Found after a request header in a request block
+ */
+struct InkBulkIOPkt
+{
+  uint32_t blockID;
+  /* Set only in the first fragment of a chain.  Contains the size of the packet */
+  uint32_t pktsize;
+  /* If the thing is a chain, the size of the fragment */
+  uint16_t fragsize;
+  uint16_t inChain:1;
+  uint16_t reserved:15;
+};
+
+struct InkBulkIOAddrInfo
+{
+  uint32_t ip;
+  uint16_t port;
+};
+
+/*
+ * Format of a sendto request:
+ *   - sender, receiver: ip/port info.
+ *   - list of InkBulkIOPkt terminated by a 0xffffffff
+ */
+struct InkBulkIOSendtoRequest
+{
+  /* declarations are done so that things in a req. block are usually 4-byte aligned */
+  uint16_t pktCount;
+  struct InkBulkIOAddrInfo src;
+  struct InkBulkIOAddrInfo dest;
+};
+
+/*
+ * Format of a split request:
+ *   - sender: ip/port info. and count of # of receivers; also a boolean that
+ *      describes if there is a per-receiver specific header that has to be
+ *      tacked on before each data-payload.
+ *   - a list of InkBulkIOPkt that describes the payload being split;
+ *   - a list of tuples <receiver info, {optional InkBulkIOPkt}>
+ *      terminate list by 0xffffffff
+ */
+
+struct InkBulkIOSplitRequest
+{
+  /* declarations are done so that things in a req. block are usually 4-byte
+   * aligned */
+  uint16_t recvCount;
+  struct InkBulkIOAddrInfo src;
+  uint16_t perDestHeader;       /* boolean */
+};
+
+/*
+ * Describes a request header, part of a request block
+ */
+struct InkBulkIORequest
+{
+  uint16_t reqType;             /* one of sendto or split */
+  union
+  {
+    struct InkBulkIOSendtoRequest sendto;
+    struct InkBulkIOSplitRequest split;
+  } request;
+};
+
+#define INKBIO_SENDTO_REQUEST 0x0a
+#define INKBIO_SPLIT_REQUEST  0xf1
+
+/*
+ * Purposely, under specify the size; we need to leave space for the "terminating" packet.
+ * Every block contains at least 1 request.
+ */
+#define INKBIO_MAX_PKTS_PER_REQ_BLOCK ((INKBIO_PKT_SIZE_WO_UDPHDR - \
+					(sizeof(struct InkBulkIORequest) + sizeof(struct InkBulkIOPkt))) / \
+				       MAX((sizeof (struct InkBulkIORequest)), \
+					   (sizeof(struct InkBulkIOPkt))))
+
+/*
+ * Requests are just block-ids---the block id points to the inkbio-block
+ * that describes the request.
+ */
+#define INKBIO_MAX_REQS_PER_REQ_BLOCK ((INKBIO_PKT_SIZE_WO_UDPHDR - sizeof(uint32_t)) / sizeof(uint32_t))
+
+#define INKBIO_MAX_FRAGS_PER_REQ_BLOCK INKBIO_MAX_PKTS_PER_REQ_BLOCK
+
+/*
+ * There is always 1 req. block and 1 pkt. block.  Next,
+ * Leave space for 1 "NULL" block for the Address information.
+ */
+
+#define INKBIO_MAX_SPLIT_WO_HDR_PER_SPLIT_BLOCK ((INKBIO_PKT_SIZE_WO_UDPHDR - \
+					(sizeof(struct InkBulkIORequest) + sizeof(struct InkBulkIOPkt) + sizeof(struct InkBulkIOAddrInfo))) / \
+					(sizeof(struct InkBulkIOAddrInfo)))
+
+#define INKBIO_MAX_SPLIT_WITH_HDR_PER_SPLIT_BLOCK ((INKBIO_PKT_SIZE_WO_UDPHDR - \
+					(sizeof(struct InkBulkIORequest) + sizeof(struct InkBulkIOPkt) + sizeof(struct InkBulkIOAddrInfo))) / \
+					(sizeof(struct InkBulkIOPkt) + sizeof(struct InkBulkIOAddrInfo)))
+
+
+#endif
diff --git a/iocore/net/P_LibBulkIO.h b/iocore/net/P_LibBulkIO.h
new file mode 100644
index 00000000..0fe541fb
--- /dev/null
+++ b/iocore/net/P_LibBulkIO.h
@@ -0,0 +1,176 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef _LIB_BULK_IO_H
+#define _LIB_BULK_IO_H
+
+#if defined(solaris)
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include <netinet/in_systm.h>
+
+#include "P_InkBulkIO.h"
+
+struct InkBulkIOState
+{
+  int biofd;
+  void *sharedBuffer;
+  int sharedBufferSize;
+  InkBulkIOFreeBlockInfo_t freeList;
+  struct InkBulkIOBlock *blockInfo;
+  int numBlocks;
+};
+
+struct InkBulkIOSplit
+{
+  char *header;
+  int nbytes;
+  struct InkBulkIOAddrInfo dest;
+};
+
+struct InkBulkIOAggregator
+{
+  InkBulkIOAggregator()
+  {
+    metaReqCount = 0;
+    metablockInfo.ptr = NULL;
+    metablockInfo.id = 0xffffffff;
+    metablockReqPtr = NULL;
+
+    lastReqFragCount = 0;
+    lastReq = NULL;
+    reqblockInfo.ptr = NULL;
+    reqblockInfo.id = 0xffffffff;
+    reqblockPktPtr = NULL;
+
+  };
+  struct InkBulkIOBlock metablockInfo;
+  // Location where the next req. block id should be stuffed in the meta block.
+  uint32_t *metablockReqPtr;
+  uint32_t metaReqCount;
+  struct InkBulkIOBlock reqblockInfo;
+  // Location where the next packet should be stuffed in the req. block
+  struct InkBulkIOPkt *reqblockPktPtr;
+  // # of fragments in the last request.
+  uint32_t lastReqFragCount;
+  struct InkBulkIORequest *lastReq;
+  void ResetLastRequestInfo()
+  {
+    lastReqFragCount = 0;
+    lastReq = NULL;
+    reqblockInfo.ptr = NULL;
+    reqblockInfo.id = 0xffffffff;
+    reqblockPktPtr = NULL;
+  };
+  void ResetMetaBlockInfo()
+  {
+    metaReqCount = 0;
+    metablockInfo.ptr = NULL;
+    metablockInfo.id = 0xffffffff;
+    metablockReqPtr = NULL;
+  };
+  bool AppendLastRequest()
+  {
+    if (metaReqCount >= INKBIO_MAX_REQS_PER_REQ_BLOCK)
+      return false;
+
+    memcpy(metablockReqPtr, &(reqblockInfo.id), sizeof(uint32_t));
+    metablockReqPtr++;
+    metaReqCount++;
+    return true;
+  };
+  void TerminateMetaBlock()
+  {
+    *metablockReqPtr = 0xffffffff;
+  };
+  void TerminateLastRequest()
+  {
+    reqblockPktPtr->blockID = 0xffffffff;
+    reqblockPktPtr->pktsize = 0xffff;
+    reqblockPktPtr->inChain = 0;
+    reqblockPktPtr->reserved = 0;
+  };
+  void InitMetaBlock()
+  {
+    metablockReqPtr = (uint32_t *) metablockInfo.ptr;
+    metaReqCount = 0;
+  };
+  void InitSendtoReqBlock()
+  {
+    reqblockPktPtr = (struct InkBulkIOPkt *)
+      ((caddr_t) reqblockInfo.ptr + sizeof(InkBulkIORequest));
+    lastReq = (struct InkBulkIORequest *) reqblockInfo.ptr;
+    lastReq->reqType = INKBIO_SENDTO_REQUEST;
+    lastReq->request.sendto.pktCount = 0;
+    lastReqFragCount = 0;
+  };
+  void InitSplitReqBlock()
+  {
+    reqblockPktPtr = (struct InkBulkIOPkt *)
+      ((caddr_t) reqblockInfo.ptr + sizeof(InkBulkIORequest));
+    lastReq = (struct InkBulkIORequest *) reqblockInfo.ptr;
+    lastReq->reqType = INKBIO_SPLIT_REQUEST;
+    lastReq->request.split.recvCount = 0;
+    lastReq->request.split.perDestHeader = 0;
+    lastReqFragCount = 0;
+  };
+
+};
+
+/*
+ * Initialize the Bulk IO system and create a state cookie
+ */
+struct InkBulkIOState *BulkIOInit(int blockcount);
+void BulkIOClose(struct InkBulkIOState *bioCookie);
+
+int BulkIOBlkAlloc(struct InkBulkIOState *bioCookie, int blkCount, struct InkBulkIOBlock *bioResult);
+
+int BulkIOAddPkt(struct InkBulkIOState *bioCookie,
+                 struct InkBulkIOAggregator *bioAggregator, UDPPacketInternal * pkt, int sourcePort);
+
+int BulkIOSplitPkt(struct InkBulkIOState *bioCookie,
+                   struct InkBulkIOAggregator *bioAggregator, UDPPacketInternal * pkt, int sourcePort);
+
+int BulkIOAppendToReqBlock(struct InkBulkIOState *bioCookie,
+                           struct InkBulkIOAggregator *bioAggregator, Ptr<IOBufferBlock> pkt);
+
+void BulkIORequestComplete(struct InkBulkIOState *bioCookie, struct InkBulkIOAggregator *bioAggregator);
+
+void BulkIOFlush(struct InkBulkIOState *bioCookie, struct InkBulkIOAggregator *bioAggregator);
+
+void CopyFromIOBufferBlock(char *dest, Ptr<IOBufferBlock> pktChain, uint32_t nbytes);
+#endif
+
+#endif
diff --git a/iocore/net/P_Net.h b/iocore/net/P_Net.h
new file mode 100644
index 00000000..97a61844
--- /dev/null
+++ b/iocore/net/P_Net.h
@@ -0,0 +1,129 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Net Subsystem
+
+
+**************************************************************************/
+#ifndef __P_NET_H__
+#define __P_NET_H__
+
+// Net Stats
+
+enum Net_Stats
+{
+  net_handler_run_stat,
+  net_read_bytes_stat,
+  net_write_bytes_stat,
+  net_connections_currently_open_stat,
+  net_accepts_currently_open_stat,
+  net_calls_to_readfromnet_stat,
+  net_calls_to_readfromnet_afterpoll_stat,
+  net_calls_to_read_stat,
+  net_calls_to_read_nodata_stat,
+  net_calls_to_writetonet_stat,
+  net_calls_to_writetonet_afterpoll_stat,
+  net_calls_to_write_stat,
+  net_calls_to_write_nodata_stat,
+  socks_connections_successful_stat,
+  socks_connections_unsuccessful_stat,
+  socks_connections_currently_open_stat,
+  inactivity_cop_lock_acquire_failure_stat,
+  Net_Stat_Count
+};
+
+struct RecRawStatBlock;
+extern RecRawStatBlock *net_rsb;
+#define SSL_HANDSHAKE_WANT_READ   6
+#define SSL_HANDSHAKE_WANT_WRITE  7
+#define SSL_HANDSHAKE_WANT_ACCEPT 8
+#define SSL_HANDSHAKE_WANT_CONNECT 9
+
+#define NET_DEBUG_COUNT_DYN_STAT(_x, _y) \
+RecIncrRawStatCount(net_rsb, mutex->thread_holding, (int)_x, _y)
+
+#define NET_INCREMENT_DYN_STAT(_x)  \
+RecIncrRawStatSum(net_rsb, mutex->thread_holding, (int)_x, 1)
+
+#define NET_DECREMENT_DYN_STAT(_x) \
+RecIncrRawStatSum(net_rsb, mutex->thread_holding, (int)_x, -1)
+
+#define NET_SUM_DYN_STAT(_x, _r) \
+RecIncrRawStatSum(net_rsb, mutex->thread_holding, (int)_x, _r)
+
+#define NET_READ_DYN_SUM(_x, _sum)  RecGetRawStatSum(net_rsb, (int)_x, &_sum)
+
+#define NET_READ_DYN_STAT(_x, _count, _sum) do {\
+RecGetRawStatSum(net_rsb, (int)_x, &_sum);          \
+RecGetRawStatCount(net_rsb, (int)_x, &_count);         \
+} while (0)
+
+#define NET_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(net_rsb, x, 0); \
+	RecSetRawStatCount(net_rsb, x, 0); \
+} while (0);
+
+// For global access
+#define NET_SUM_GLOBAL_DYN_STAT(_x, _r) RecIncrGlobalRawStatSum(net_rsb, (_x), (_r))
+#define NET_READ_GLOBAL_DYN_SUM(_x, _sum) RecGetGlobalRawStatSum(net_rsb, _x, &_sum)
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "I_Net.h"
+#include "P_NetVConnection.h"
+#include "P_UnixNet.h"
+#include "P_UnixNetProcessor.h"
+#include "P_NetAccept.h"
+#include "P_UnixNetVConnection.h"
+#include "P_UnixPollDescriptor.h"
+#include "P_Socks.h"
+#include "P_CompletionUtil.h"
+#include "P_NetVCTest.h"
+#include "P_LibBulkIO.h"
+
+#include "P_SSLNetVConnection.h"
+#include "P_SSLNetProcessor.h"
+#include "P_SSLNetAccept.h"
+#include "P_SSLCertLookup.h"
+
+#undef  NET_SYSTEM_MODULE_VERSION
+#define NET_SYSTEM_MODULE_VERSION makeModuleVersion(                    \
+                                       NET_SYSTEM_MODULE_MAJOR_VERSION, \
+                                       NET_SYSTEM_MODULE_MINOR_VERSION, \
+                                       PRIVATE_MODULE_HEADER)
+
+// For very verbose iocore debugging.
+#ifndef DEBUG
+#define NetDebug if (0) dummy_debug
+#else
+#define NetDebug Debug
+#endif
+
+/// Default amount of buffer space to use for the initial read on an incoming connection.
+/// This is an IOBufferBlock index, not the size in bytes.
+static size_t const CLIENT_CONNECTION_FIRST_READ_BUFFER_SIZE_INDEX = BUFFER_SIZE_INDEX_4K;
+
+#endif
diff --git a/iocore/net/P_NetAccept.h b/iocore/net/P_NetAccept.h
new file mode 100644
index 00000000..3efac3a6
--- /dev/null
+++ b/iocore/net/P_NetAccept.h
@@ -0,0 +1,127 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  NetAccept.h
+
+
+   NetAccept is a generalized facility which allows
+   Connections of different classes to be accepted either
+   from a blockable thread or by adaptive polling.
+
+   It is used by the NetProcessor and the ClusterProcessor
+   and should be considered PRIVATE to processor implementations.
+
+
+
+ ****************************************************************************/
+#ifndef __P_NETACCEPT_H__
+#define __P_NETACCEPT_H__
+
+#include "libts.h"
+#include "P_Connection.h"
+
+
+struct NetAccept;
+class Event;
+//
+// Default accept function
+//   Accepts as many connections as possible, returning the number accepted
+//   or -1 to stop accepting.
+//
+typedef int (AcceptFunction) (NetAccept * na, void *e, bool blockable);
+typedef AcceptFunction *AcceptFunctionPtr;
+AcceptFunction net_accept;
+
+class UnixNetVConnection;
+
+// TODO fix race between cancel accept and call back
+struct NetAcceptAction:public Action, public RefCountObj
+{
+  Server *server;
+
+  void cancel(Continuation * cont = NULL) {
+    Action::cancel(cont);
+    server->close();
+  }
+
+  Continuation *operator =(Continuation * acont)
+  {
+    return Action::operator=(acont);
+  }
+
+  ~NetAcceptAction() {
+    Debug("net_accept", "NetAcceptAction dying\n");
+  }
+};
+
+
+//
+// NetAccept
+// Handles accepting connections.
+//
+struct NetAccept:public Continuation
+{
+  ink_hrtime period;
+  Server server;
+  void *alloc_cache;
+  AcceptFunctionPtr accept_fn;
+  int ifd;
+  bool callback_on_open;
+  bool backdoor;
+  Ptr<NetAcceptAction> action_;
+  int recv_bufsize;
+  int send_bufsize;
+  uint32_t sockopt_flags;
+  uint32_t packet_mark;
+  uint32_t packet_tos;
+  EventType etype;
+  UnixNetVConnection *epoll_vc; // only storage for epoll events
+  EventIO ep;
+
+  virtual EventType getEtype() const;
+  virtual NetProcessor * getNetProcessor() const;
+
+  void init_accept_loop(const char *);
+  virtual void init_accept(EThread * t = NULL);
+  virtual void init_accept_per_thread();
+  virtual NetAccept *clone() const;
+  // 0 == success
+  int do_listen(bool non_blocking, bool transparent = false);
+
+  int do_blocking_accept(EThread * t);
+  virtual int acceptEvent(int event, void *e);
+  virtual int acceptFastEvent(int event, void *e);
+  int acceptLoopEvent(int event, Event * e);
+  void cancel();
+
+  NetAccept();
+  virtual ~ NetAccept()
+  {
+    action_ = NULL;
+  };
+};
+
+
+#endif
diff --git a/iocore/net/P_NetVCTest.h b/iocore/net/P_NetVCTest.h
new file mode 100644
index 00000000..14f4ea1d
--- /dev/null
+++ b/iocore/net/P_NetVCTest.h
@@ -0,0 +1,152 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_NetVCTest.h
+
+   Description:
+       Unit test for infastructure for VConnections implementing the
+         NetVConnection interface
+
+
+
+
+ ****************************************************************************/
+
+#ifndef _P_NET_VC_TEST_H_
+#define _P_NET_VC_TEST_H_
+
+#include "libts.h"
+
+class VIO;
+class MIOBuffer;
+class IOBufferReader;
+
+
+
+enum NetVcTestType_t
+{
+  NET_VC_TEST_ACTIVE,
+  NET_VC_TEST_PASSIVE
+};
+
+struct NVC_test_def
+{
+  const char *test_name;
+
+  int bytes_to_send;
+  int nbytes_write;
+
+  int bytes_to_read;
+  int nbytes_read;
+
+  int write_bytes_per;
+  int timeout;
+
+  int expected_read_term;
+  int expected_write_term;
+};
+
+extern NVC_test_def netvc_tests_def[];
+extern const unsigned num_netvc_tests;
+
+class NetTestDriver:public Continuation
+{
+public:
+  NetTestDriver();
+  ~NetTestDriver();
+
+  int errors;
+protected:
+
+    RegressionTest * r;
+  int *pstatus;
+};
+
+
+class NetVCTest:public Continuation
+{
+public:
+  NetVCTest();
+  ~NetVCTest();
+  NetVcTestType_t test_cont_type;
+
+  int main_handler(int event, void *data);
+  void read_handler(int event);
+  void write_handler(int event);
+  void cleanup();
+
+  void init_test(NetVcTestType_t n_type, NetTestDriver * driver,
+                 NetVConnection * nvc, RegressionTest * robj,
+                 NVC_test_def * my_def, const char *module_name_arg, const char *debug_tag_arg);
+  void start_test();
+  int fill_buffer(MIOBuffer * buf, uint8_t * seed, int bytes);
+  int consume_and_check_bytes(IOBufferReader * r, uint8_t * seed);
+
+  void write_finished();
+  void read_finished();
+  void finished();
+  void record_error(const char *msg);
+
+  NetVConnection *test_vc;
+  RegressionTest *regress;
+  NetTestDriver *driver;
+
+  VIO *read_vio;
+  VIO *write_vio;
+
+  MIOBuffer *read_buffer;
+  MIOBuffer *write_buffer;
+
+  IOBufferReader *reader_for_rbuf;
+  IOBufferReader *reader_for_wbuf;
+
+  int write_bytes_to_add_per;
+  int timeout;
+
+  int actual_bytes_read;
+  int actual_bytes_sent;
+
+  bool write_done;
+  bool read_done;
+
+  uint8_t read_seed;
+  uint8_t write_seed;
+
+  int bytes_to_send;
+  int bytes_to_read;
+
+  int nbytes_read;
+  int nbytes_write;
+
+  int expected_read_term;
+  int expected_write_term;
+
+  const char *test_name;
+  const char *module_name;
+  const char *debug_tag;
+};
+
+
+#endif
diff --git a/iocore/net/P_NetVConnection.h b/iocore/net/P_NetVConnection.h
new file mode 100644
index 00000000..b62ed54b
--- /dev/null
+++ b/iocore/net/P_NetVConnection.h
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_NetVConnection.h"
+
+TS_INLINE sockaddr const*
+NetVConnection::get_remote_addr()
+{
+  if (!got_remote_addr) {
+    set_remote_addr();
+    got_remote_addr = true;
+  }
+  return &remote_addr.sa;
+}
+
+TS_INLINE in_addr_t
+NetVConnection::get_remote_ip()
+{
+  sockaddr const* addr = this->get_remote_addr();
+  return ats_is_ip4(addr)
+    ? ats_ip4_addr_cast(addr)
+    : 0;
+}
+
+
+/// @return The remote port in host order.
+TS_INLINE uint16_t
+NetVConnection::get_remote_port()
+{
+  return ats_ip_port_host_order(this->get_remote_addr());
+}
+
+TS_INLINE sockaddr const*
+NetVConnection::get_local_addr()
+{
+  if (!got_local_addr) {
+    set_local_addr();
+    if (
+      (ats_is_ip(&local_addr) && ats_ip_port_cast(&local_addr)) // IP and has a port.
+      || (ats_is_ip4(&local_addr) && INADDR_ANY != ats_ip4_addr_cast(&local_addr)) // IPv4
+      || (ats_is_ip6(&local_addr) && !IN6_IS_ADDR_UNSPECIFIED(&local_addr.sin6.sin6_addr))
+    ) {
+      got_local_addr = 1;
+    }
+  }
+  return &local_addr.sa;
+}
+
+TS_INLINE in_addr_t
+NetVConnection::get_local_ip()
+{
+  sockaddr const* addr = this->get_local_addr();
+  return ats_is_ip4(addr)
+    ? ats_ip4_addr_cast(addr)
+    : 0;
+}
+
+/// @return The local port in host order.
+TS_INLINE uint16_t
+NetVConnection::get_local_port()
+{
+  return ats_ip_port_host_order(this->get_local_addr());
+}
diff --git a/iocore/net/P_SSLCertLookup.h b/iocore/net/P_SSLCertLookup.h
new file mode 100644
index 00000000..f2328ef9
--- /dev/null
+++ b/iocore/net/P_SSLCertLookup.h
@@ -0,0 +1,53 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SSLCERTLOOKUP_H__
+#define __P_SSLCERTLOOKUP_H__
+
+#include "ProxyConfig.h"
+#include "P_SSLUtils.h"
+
+struct SSLConfigParams;
+struct SSLContextStorage;
+
+struct SSLCertLookup : public ConfigInfo
+{
+  SSLContextStorage * ssl_storage;
+  SSL_CTX *           ssl_default;
+
+  bool insert(SSL_CTX * ctx, const char * name);
+  bool insert(SSL_CTX * ctx, const IpEndpoint& address);
+  SSL_CTX * findInfoInHash(const char * address) const;
+  SSL_CTX * findInfoInHash(const IpEndpoint& address) const;
+
+  // Return the last-resort default TLS context if there is no name or address match.
+  SSL_CTX * defaultContext() const { return ssl_default; }
+
+  unsigned count() const;
+  SSL_CTX * get(unsigned i) const;
+
+  SSLCertLookup();
+  virtual ~SSLCertLookup();
+};
+
+#endif /* __P_SSLCERTLOOKUP_H__ */
diff --git a/iocore/net/P_SSLConfig.h b/iocore/net/P_SSLConfig.h
new file mode 100644
index 00000000..6408de3e
--- /dev/null
+++ b/iocore/net/P_SSLConfig.h
@@ -0,0 +1,122 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*************************** -*- Mod: C++ -*- ******************************
+  P_SSLConfig.h
+   Created On      : 07/20/2000
+
+   Description:
+   SSL Configurations
+ ****************************************************************************/
+#ifndef __P_SSLCONFIG_H__
+#define __P_SSLCONFIG_H__
+
+#include "ProxyConfig.h"
+
+struct SSLCertLookup;
+
+/////////////////////////////////////////////////////////////
+//
+// struct SSLConfigParams
+//
+// configuration parameters as they apear in the global
+// configuration file.
+/////////////////////////////////////////////////////////////
+
+
+typedef void (*init_ssl_ctx_func)(void *, bool);
+
+struct SSLConfigParams : public ConfigInfo
+{
+  enum SSL_SESSION_CACHE_MODE
+  {
+    SSL_SESSION_CACHE_MODE_OFF = 0,
+    SSL_SESSION_CACHE_MODE_SERVER = 1
+  };
+
+  SSLConfigParams();
+  virtual ~SSLConfigParams();
+
+  char *  serverCertPathOnly;
+  char *  serverCertChainFilename;
+  char *  serverKeyPathOnly;
+  char *  serverCACertFilename;
+  char *  serverCACertPath;
+  char *  configFilePath;
+  char *  cipherSuite;
+  int     clientCertLevel;
+  int     verify_depth;
+  int     ssl_session_cache; // SSL_SESSION_CACHE_MODE
+  int     ssl_session_cache_size;
+  int     ssl_session_cache_timeout;
+
+  char *  clientCertPath;
+  char *  clientKeyPath;
+  char *  clientCACertFilename;
+  char *  clientCACertPath;
+  int     clientVerify;
+  int     client_verify_depth;
+  long    ssl_ctx_options;
+
+  static int ssl_maxrecord;
+  static bool ssl_allow_client_renegotiation;
+
+  static init_ssl_ctx_func init_ssl_ctx_cb;
+
+  void initialize();
+  void cleanup();
+};
+
+/////////////////////////////////////////////////////////////
+//
+// class SSLConfig
+//
+/////////////////////////////////////////////////////////////
+
+struct SSLConfig
+{
+  static void startup();
+  static void reconfigure();
+  static SSLConfigParams * acquire();
+  static void release(SSLConfigParams * params);
+
+  typedef ConfigProcessor::scoped_config<SSLConfig, SSLConfigParams> scoped_config;
+
+private:
+  static int configid;
+};
+
+struct SSLCertificateConfig
+{
+  static void startup();
+  static void reconfigure();
+  static SSLCertLookup * acquire();
+  static void release(SSLCertLookup * params);
+
+  typedef ConfigProcessor::scoped_config<SSLCertificateConfig, SSLCertLookup> scoped_config;
+
+private:
+  static int configid;
+};
+
+#endif
diff --git a/iocore/net/P_SSLNetAccept.h b/iocore/net/P_SSLNetAccept.h
new file mode 100644
index 00000000..d50d7ea2
--- /dev/null
+++ b/iocore/net/P_SSLNetAccept.h
@@ -0,0 +1,67 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_SSLNetAccept.h
+
+
+   NetAccept is a generalized facility which allows
+   Connections of different classes to be accepted either
+   from a blockable thread or by adaptive polling.
+
+   It is used by the NetProcessor and the ClusterProcessor
+   and should be considered PRIVATE to processor implementations.
+
+
+
+ ****************************************************************************/
+#if !defined (_SSLNetAccept_h_)
+#define _SSLNetAccept_h_
+
+#include "libts.h"
+#include "P_Connection.h"
+#include "P_NetAccept.h"
+
+class Event;
+class UnixNetVConnection;
+
+//
+// NetAccept
+// Handles accepting connections.
+//
+struct SSLNetAccept: public NetAccept
+{
+  virtual NetProcessor * getNetProcessor() const;
+  virtual EventType getEtype() const;
+  virtual void init_accept_per_thread();
+  virtual NetAccept *clone() const;
+
+  SSLNetAccept()
+    { };
+
+  virtual ~SSLNetAccept()
+    { };
+
+};
+#endif
diff --git a/iocore/net/P_SSLNetProcessor.h b/iocore/net/P_SSLNetProcessor.h
new file mode 100644
index 00000000..2ff93d69
--- /dev/null
+++ b/iocore/net/P_SSLNetProcessor.h
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Net.h
+
+  This file implements an I/O Processor for network I/O.
+
+
+ ****************************************************************************/
+#ifndef __P_SSLNETPROCESSOR_H
+#define __P_SSLNETPROCESSOR_H
+
+#include "libts.h"
+#include "P_Net.h"
+#include "P_SSLConfig.h"
+#include <openssl/ssl.h>
+
+class UnixNetVConnection;
+struct NetAccept;
+
+//////////////////////////////////////////////////////////////////
+//
+//  class SSLNetProcessor
+//
+//////////////////////////////////////////////////////////////////
+struct SSLNetProcessor : public UnixNetProcessor
+{
+public:
+
+  virtual int start(int no_of_ssl_threads, size_t stacksize);
+
+  void cleanup(void);
+
+  SSL_CTX *getClientSSL_CTX(void) const { return client_ctx; }
+
+  SSLNetProcessor();
+  virtual ~SSLNetProcessor();
+
+  SSL_CTX *client_ctx;
+
+  static EventType ET_SSL;
+
+  //
+  // Private
+  //
+
+  // Virtual function allows etype
+  // to be upgraded to ET_SSL for SSLNetProcessor.
+  virtual void upgradeEtype(EventType &etype);
+
+  virtual NetAccept * createNetAccept();
+  virtual NetVConnection * allocate_vc(EThread *t);
+
+private:
+  SSLNetProcessor(const SSLNetProcessor &);
+  SSLNetProcessor & operator =(const SSLNetProcessor &);
+};
+
+extern SSLNetProcessor ssl_NetProcessor;
+
+#endif
diff --git a/iocore/net/P_SSLNetVConnection.h b/iocore/net/P_SSLNetVConnection.h
new file mode 100644
index 00000000..c464e604
--- /dev/null
+++ b/iocore/net/P_SSLNetVConnection.h
@@ -0,0 +1,138 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  SSLNetVConnection.h
+
+  This file implements an I/O Processor for network I/O.
+
+
+ ****************************************************************************/
+#if !defined (_SSLNetVConnection_h_)
+#define _SSLNetVConnection_h_
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "P_UnixNetVConnection.h"
+#include "P_UnixNet.h"
+
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+
+// These are included here beacuse older OpenSSL libraries don't have them.
+// Don't copy these defines, or use their values directly, they are merely
+// here to avoid compiler errors.
+#ifndef SSL_TLSEXT_ERR_OK
+#define SSL_TLSEXT_ERR_OK 0
+#endif
+
+#ifndef SSL_TLSEXT_ERR_NOACK
+#define SSL_TLSEXT_ERR_NOACK 3
+#endif
+
+class SSLNextProtocolSet;
+
+//////////////////////////////////////////////////////////////////
+//
+//  class NetVConnection
+//
+//  A VConnection for a network socket.
+//
+//////////////////////////////////////////////////////////////////
+class SSLNetVConnection:public UnixNetVConnection
+{
+public:
+  virtual int sslStartHandShake(int event, int &err);
+  virtual void free(EThread * t);
+  virtual void enableRead()
+  {
+    read.enabled = 1;
+    write.enabled = 1;
+  };
+  virtual bool getSSLHandShakeComplete()
+  {
+    return sslHandShakeComplete;
+  };
+  void setSSLHandShakeComplete(bool state)
+  {
+    sslHandShakeComplete = state;
+  };
+  virtual bool getSSLClientConnection()
+  {
+    return sslClientConnection;
+  };
+  virtual void setSSLClientConnection(bool state)
+  {
+    sslClientConnection = state;
+  };
+  int sslServerHandShakeEvent(int &err);
+  int sslClientHandShakeEvent(int &err);
+  virtual void net_read_io(NetHandler * nh, EThread * lthread);
+  virtual int64_t load_buffer_and_write(int64_t towrite, int64_t &wattempted, int64_t &total_wrote, MIOBufferAccessor & buf, int &needs);
+  void registerNextProtocolSet(const SSLNextProtocolSet *);
+
+  ////////////////////////////////////////////////////////////
+  // Instances of NetVConnection should be allocated        //
+  // only from the free list using NetVConnection::alloc(). //
+  // The constructor is public just to avoid compile errors.//
+  ////////////////////////////////////////////////////////////
+  SSLNetVConnection();
+  virtual ~SSLNetVConnection() { }
+
+  SSL *ssl;
+  ink_hrtime sslHandshakeBeginTime;
+
+  static int advertise_next_protocol(SSL * ssl, const unsigned char ** out, unsigned * outlen, void *);
+  static int select_next_protocol(SSL * ssl, const unsigned char ** out, unsigned char * outlen, const unsigned char * in, unsigned inlen, void *);
+
+  Continuation * endpoint() const {
+    return npnEndpoint;
+  }
+
+  bool getSSLClientRenegotiationAbort() const
+  {
+    return sslClientRenegotiationAbort;
+  };
+
+  void setSSLClientRenegotiationAbort(bool state)
+  {
+    sslClientRenegotiationAbort = state;
+  };
+
+private:
+  SSLNetVConnection(const SSLNetVConnection &);
+  SSLNetVConnection & operator =(const SSLNetVConnection &);
+
+  bool sslHandShakeComplete;
+  bool sslClientConnection;
+  bool sslClientRenegotiationAbort;
+  const SSLNextProtocolSet * npnSet;
+  Continuation * npnEndpoint;
+};
+
+typedef int (SSLNetVConnection::*SSLNetVConnHandler) (int, void *);
+
+extern ClassAllocator<SSLNetVConnection> sslNetVCAllocator;
+
+#endif /* _SSLNetVConnection_h_ */
diff --git a/iocore/net/P_SSLNextProtocolAccept.h b/iocore/net/P_SSLNextProtocolAccept.h
new file mode 100644
index 00000000..2c53f206
--- /dev/null
+++ b/iocore/net/P_SSLNextProtocolAccept.h
@@ -0,0 +1,65 @@
+/** @file
+
+  SSLNextProtocolAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef P_SSLNextProtocolAccept_H_
+#define P_SSLNextProtocolAccept_H_
+
+#include "P_Net.h"
+#include "P_EventSystem.h"
+#include "P_UnixNet.h"
+#include "P_SSLNetVConnection.h"
+#include "P_SSLNextProtocolSet.h"
+#include "I_IOBuffer.h"
+
+class SSLNextProtocolAccept: public SessionAccept
+{
+public:
+  SSLNextProtocolAccept(Continuation *);
+  ~SSLNextProtocolAccept();
+
+  void accept(NetVConnection *, MIOBuffer *, IOBufferReader*);
+
+  // Register handler as an endpoint for the specified protocol. Neither
+  // handler nor protocol are copied, so the caller must guarantee their
+  // lifetime is at least as long as that of the acceptor.
+  bool registerEndpoint(const char * protocol, Continuation * handler);
+
+  // Unregister the handler. Returns false if this protocol is not registered
+  // or if it is not registered for the specified handler.
+  bool unregisterEndpoint(const char * protocol, Continuation * handler);
+
+  SLINK(SSLNextProtocolAccept, link);
+
+private:
+  int mainEvent(int event, void * netvc);
+  SSLNextProtocolAccept(const SSLNextProtocolAccept &); // disabled
+  SSLNextProtocolAccept& operator =(const SSLNextProtocolAccept&); // disabled
+
+  MIOBuffer * buffer; // XXX do we really need this?
+  Continuation * endpoint;
+  SSLNextProtocolSet protoset;
+
+friend struct SSLNextProtocolTrampoline;
+};
+
+#endif /* P_SSLNextProtocolAccept_H_ */
diff --git a/iocore/net/P_SSLNextProtocolSet.h b/iocore/net/P_SSLNextProtocolSet.h
new file mode 100644
index 00000000..729038ad
--- /dev/null
+++ b/iocore/net/P_SSLNextProtocolSet.h
@@ -0,0 +1,68 @@
+/** @file
+
+  SSLNextProtocolSet
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef P_SSLNextProtocolSet_H_
+#define P_SSLNextProtocolSet_H_
+
+#include "List.h"
+#include "I_Net.h"
+
+class Continuation;
+
+class SSLNextProtocolSet
+{
+public:
+  SSLNextProtocolSet();
+  ~SSLNextProtocolSet();
+
+  bool registerEndpoint(const char *, Continuation *);
+  bool unregisterEndpoint(const char *, Continuation *);
+  bool advertiseProtocols(const unsigned char ** out, unsigned * len) const;
+
+  Continuation * findEndpoint(const unsigned char *, unsigned) const;
+
+  struct NextProtocolEndpoint
+  {
+    // NOTE: the protocol and endpoint are NOT copied. The caller is
+    // responsible for ensuring their lifetime.
+    NextProtocolEndpoint(const char * protocol, Continuation * endpoint);
+    ~NextProtocolEndpoint();
+
+    const char * protocol;
+    Continuation * endpoint;
+    LINK(NextProtocolEndpoint, link);
+
+    typedef DLL<NextProtocolEndpoint> list_type;
+  };
+
+private:
+  SSLNextProtocolSet(const SSLNextProtocolSet&); // disabled
+  SSLNextProtocolSet& operator=(const SSLNextProtocolSet&); // disabled
+
+  mutable unsigned char * npn;
+  mutable size_t npnsz;
+
+  NextProtocolEndpoint::list_type endpoints;
+};
+
+#endif /* P_SSLNextProtocolSet_H_ */
diff --git a/iocore/net/P_SSLUtils.h b/iocore/net/P_SSLUtils.h
new file mode 100644
index 00000000..5145cb71
--- /dev/null
+++ b/iocore/net/P_SSLUtils.h
@@ -0,0 +1,120 @@
+/** @file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SSLUTILS_H__
+#define __P_SSLUTILS_H__
+
+#include "ink_config.h"
+#include "Diags.h"
+
+#define OPENSSL_THREAD_DEFINES
+#include <openssl/opensslconf.h>
+#include <openssl/ssl.h>
+
+#if !defined(OPENSSL_THREADS)
+#error Traffic Server requires a OpenSSL library that support threads
+#endif
+
+struct SSLConfigParams;
+struct SSLCertLookup;
+class SSLNetVConnection;
+struct RecRawStatBlock;
+
+enum SSL_Stats
+{
+  ssl_origin_server_expired_cert_stat,
+  ssl_user_agent_expired_cert_stat,
+  ssl_origin_server_revoked_cert_stat,
+  ssl_user_agent_revoked_cert_stat,
+  ssl_origin_server_unknown_cert_stat,
+  ssl_user_agent_unknown_cert_stat,
+  ssl_origin_server_cert_verify_failed_stat,
+  ssl_user_agent_cert_verify_failed_stat,
+  ssl_origin_server_bad_cert_stat,
+  ssl_user_agent_bad_cert_stat,
+  ssl_origin_server_decryption_failed_stat,
+  ssl_user_agent_decryption_failed_stat,
+  ssl_origin_server_wrong_version_stat,
+  ssl_user_agent_wrong_version_stat,
+  ssl_origin_server_other_errors_stat,
+  ssl_user_agent_other_errors_stat,
+  ssl_origin_server_unknown_ca_stat,
+  ssl_user_agent_unknown_ca_stat,
+  ssl_user_agent_sessions_stat,
+  ssl_user_agent_session_hit_stat,
+  ssl_user_agent_session_miss_stat,
+  ssl_user_agent_session_timeout_stat,
+  ssl_total_handshake_time_stat,
+  ssl_total_success_handshake_count_stat,
+
+  ssl_cipher_stats_start = 100,
+  ssl_cipher_stats_end = 300,
+
+  Ssl_Stat_Count
+};
+
+extern RecRawStatBlock *ssl_rsb;
+
+/* Stats should only be accessed using these macros */
+#define SSL_INCREMENT_DYN_STAT(x) RecIncrRawStat(ssl_rsb, NULL, (int) x, 1)
+#define SSL_DECREMENT_DYN_STAT(x) RecIncrRawStat(ssl_rsb, NULL, (int) x, -1)
+#define SSL_SET_COUNT_DYN_STAT(x,count) RecSetRawStatCount(ssl_rsb, x, count)
+#define SSL_INCREMENT_DYN_STAT_EX(x, y) RecIncrRawStat(ssl_rsb, NULL, (int) x, y)
+#define SSL_CLEAR_DYN_STAT(x) \
+  do { \
+    RecSetRawStatSum(ssl_rsb, (x), 0); \
+    RecSetRawStatCount(ssl_rsb, (x), 0); \
+  } while (0);
+
+// Create a default SSL server context.
+SSL_CTX * SSLDefaultServerContext();
+
+// Create and initialize a SSL client context.
+SSL_CTX * SSLInitClientContext(const SSLConfigParams * param);
+
+// Initialize the SSL library.
+void SSLInitializeLibrary();
+
+// Initialize SSL statistics.
+void SSLInitializeStatistics();
+
+// Release SSL_CTX and the associated data
+void SSLReleaseContext(SSL_CTX* ctx);
+
+// Log an SSL error.
+#define SSLError(fmt, ...) SSLDiagnostic(DiagsMakeLocation(), false, NULL, fmt, ##__VA_ARGS__)
+#define SSLErrorVC(vc,fmt, ...) SSLDiagnostic(DiagsMakeLocation(), false, vc, fmt, ##__VA_ARGS__)
+// Log a SSL diagnostic using the "ssl" diagnostic tag.
+#define SSLDebug(fmt, ...) SSLDiagnostic(DiagsMakeLocation(), true, NULL, fmt, ##__VA_ARGS__)
+#define SSLDebugVC(vc,fmt, ...) SSLDiagnostic(DiagsMakeLocation(), true, vc, fmt, ##__VA_ARGS__)
+
+void SSLDiagnostic(const SrcLoc& loc, bool debug, SSLNetVConnection * vc, const char * fmt, ...) TS_PRINTFLIKE(4, 5);
+
+// Return a static string name for a SSL_ERROR constant.
+const char * SSLErrorName(int ssl_error);
+
+// Log a SSL network buffer.
+void SSLDebugBufferPrint(const char * tag, const char * buffer, unsigned buflen, const char * message);
+
+// Load the SSL certificate configuration.
+bool SSLParseCertificateConfiguration(const SSLConfigParams * params, SSLCertLookup * lookup);
+
+#endif /* __P_SSLUTILS_H__ */
diff --git a/iocore/net/P_Socks.h b/iocore/net/P_Socks.h
new file mode 100644
index 00000000..c7ad37cf
--- /dev/null
+++ b/iocore/net/P_Socks.h
@@ -0,0 +1,166 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SOCKS_H__
+#define __P_SOCKS_H__
+#include "P_EventSystem.h"
+#include "I_Socks.h"
+
+#ifdef SOCKS_WITH_TS
+#include "ParentSelection.h"
+#include <ts/IpMap.h>
+#endif
+
+enum
+{
+  //types of events for Socks auth handlers
+  SOCKS_AUTH_OPEN,
+  SOCKS_AUTH_WRITE_COMPLETE,
+  SOCKS_AUTH_READ_COMPLETE,
+  SOCKS_AUTH_FILL_WRITE_BUF
+};
+
+struct socks_conf_struct
+{
+  int socks_needed;
+  int server_connect_timeout;
+  int socks_timeout;
+  unsigned char default_version;
+  char *user_name_n_passwd;
+  int user_name_n_passwd_len;
+
+  int per_server_connection_attempts;
+  int connection_attempts;
+
+  //the following ports are used by SocksProxy
+  int accept_enabled;
+  int accept_port;
+  unsigned short http_port;
+
+#ifdef SOCKS_WITH_TS
+  IpMap ip_map;
+#endif
+
+#ifndef SOCKS_WITH_TS
+  IpEndpoint server_addr;
+#endif
+
+    socks_conf_struct():socks_needed(0), server_connect_timeout(0), socks_timeout(100), default_version(5),
+    user_name_n_passwd(NULL), user_name_n_passwd_len(0),
+    per_server_connection_attempts(1), connection_attempts(0), accept_enabled(0), accept_port(0), http_port(1080)
+  {
+# if !defined(SOCKS_WITH_TS)
+    memset(&server_addr, 0, sizeof(server_addr));
+# endif
+  }
+};
+
+extern struct socks_conf_struct *g_socks_conf_stuff;
+
+void start_SocksProxy(int port);
+
+int loadSocksAuthInfo(int fd, socks_conf_struct * socks_stuff);
+
+// umm.. the following typedef should take _its own_ type as one of the args
+// not possible with C
+// Right now just use a generic fn ptr and hide casting in an inline fn.
+typedef int (*SocksAuthHandler) (int event, unsigned char *buf, void (**h_ptr) (void));
+
+TS_INLINE int
+invokeSocksAuthHandler(SocksAuthHandler & h, int arg1, unsigned char *arg2)
+{
+  return (h) (arg1, arg2, (void (**)(void)) (&h));
+}
+
+void loadSocksConfiguration(socks_conf_struct * socks_conf_stuff);
+int socks5BasicAuthHandler(int event, unsigned char *p, void (**)(void));
+int socks5PasswdAuthHandler(int event, unsigned char *p, void (**)(void));
+int socks5ServerAuthHandler(int event, unsigned char *p, void (**)(void));
+
+class UnixNetVConnection;
+typedef UnixNetVConnection SocksNetVC;
+
+struct SocksEntry:public Continuation
+{
+
+
+  MIOBuffer *buf;
+  IOBufferReader *reader;
+
+  SocksNetVC *netVConnection;
+
+  // Changed from @a ip and @a port.
+  IpEndpoint target_addr; ///< Original target address.
+  // Changed from @a server_ip, @a server_port.
+  IpEndpoint server_addr; ///< Origin server address.
+
+  int nattempts;
+
+  Action action_;
+  int lerrno;
+  Event *timeout;
+  unsigned char version;
+
+  bool write_done;
+
+  SocksAuthHandler auth_handler;
+  unsigned char socks_cmd;
+
+#ifdef SOCKS_WITH_TS
+  //socks server selection:
+  ParentConfigParams *server_params;
+  HttpRequestData req_data;     //We dont use any http specific fields.
+  ParentResult server_result;
+#endif
+
+  int startEvent(int event, void *data);
+  int mainEvent(int event, void *data);
+  void findServer();
+  void init(ProxyMutex * m, SocksNetVC * netvc, unsigned char socks_support, unsigned char ver);
+  void free();
+
+    SocksEntry():Continuation(NULL), netVConnection(0),
+    nattempts(0),
+    lerrno(0), timeout(0), version(5), write_done(false), auth_handler(NULL), socks_cmd(NORMAL_SOCKS)
+  {
+    memset(&target_addr, 0, sizeof(target_addr));
+    memset(&server_addr, 0, sizeof(server_addr));
+  }
+};
+
+typedef int (SocksEntry::*SocksEntryHandler) (int, void *);
+
+extern ClassAllocator<SocksEntry> socksAllocator;
+
+TS_INLINE void
+SocksAddrType::reset()
+{
+  if (type != SOCKS_ATYPE_IPV4 && addr.buf) {
+    ats_free(addr.buf);
+  }
+
+  addr.buf = 0;
+  type = SOCKS_ATYPE_NONE;
+}
+
+#endif
diff --git a/iocore/net/P_UDPConnection.h b/iocore/net/P_UDPConnection.h
new file mode 100644
index 00000000..7cc7c339
--- /dev/null
+++ b/iocore/net/P_UDPConnection.h
@@ -0,0 +1,167 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_UDPConnection.h
+  Internal UDPConnection holds data members and defines member functions
+
+
+ ****************************************************************************/
+#ifndef __P_UDPCONNECTION_H_
+#define __P_UDPCONNECTION_H_
+
+#include "I_UDPNet.h"
+
+
+class UDPConnectionInternal:public UDPConnection
+{
+
+public:
+  UDPConnectionInternal();
+  virtual ~ UDPConnectionInternal();
+
+  Continuation *continuation;
+  int recvActive;               // interested in receiving
+  int refcount;               // public for assertion
+
+  SOCKET fd;
+  IpEndpoint binding;
+  int binding_valid;
+  int tobedestroyed;
+  int sendGenerationNum;
+  int64_t lastSentPktTSSeqNum;
+
+  // this is for doing packet scheduling: we keep two values so that we can
+  // implement cancel.  The first value tracks the startTime of the last
+  // packet that was sent on this connection; the second value tracks the
+  // startTime of the last packet when we are doing scheduling;  whenever the
+  // associated continuation cancels a packet, we rest lastPktStartTime to be
+  // the same as the lastSentPktStartTime.
+  uint64_t lastSentPktStartTime;
+  uint64_t lastPktStartTime;
+};
+
+TS_INLINE
+UDPConnectionInternal::UDPConnectionInternal()
+  : continuation(NULL), recvActive(0), refcount(0), fd(-1), binding_valid(0), tobedestroyed(0)
+{
+  sendGenerationNum = 0;
+  lastSentPktTSSeqNum = -1;
+  lastSentPktStartTime = 0;
+  lastPktStartTime = 0;
+  memset(&binding, 0, sizeof binding);
+}
+
+TS_INLINE
+UDPConnectionInternal::~UDPConnectionInternal()
+{
+  continuation = NULL;
+  mutex = NULL;
+}
+
+
+TS_INLINE SOCKET
+UDPConnection::getFd()
+{
+  return ((UDPConnectionInternal *) this)->fd;
+}
+
+TS_INLINE void
+UDPConnection::setBinding(struct sockaddr const* s)
+{
+  UDPConnectionInternal *p = (UDPConnectionInternal *) this;
+  ats_ip_copy(&p->binding, s);
+  p->binding_valid = 1;
+}
+
+TS_INLINE int
+UDPConnection::getBinding(struct sockaddr *s)
+{
+  UDPConnectionInternal *p = (UDPConnectionInternal *) this;
+  ats_ip_copy(s, &p->binding);
+  return p->binding_valid;
+}
+
+TS_INLINE void
+UDPConnection::destroy()
+{
+  ((UDPConnectionInternal *) this)->tobedestroyed = 1;
+}
+
+TS_INLINE int
+UDPConnection::shouldDestroy()
+{
+  return ((UDPConnectionInternal *) this)->tobedestroyed;
+}
+
+TS_INLINE void
+UDPConnection::AddRef()
+{
+  ink_atomic_increment(&((UDPConnectionInternal *) this)->refcount, 1);
+}
+
+TS_INLINE int
+UDPConnection::GetRefCount()
+{
+  return ((UDPConnectionInternal *) this)->refcount;
+}
+
+TS_INLINE int
+UDPConnection::GetSendGenerationNumber()
+{
+  return ((UDPConnectionInternal *) this)->sendGenerationNum;
+}
+
+TS_INLINE int
+UDPConnection::getPortNum(void)
+{
+  return ats_ip_port_host_order(&static_cast<UDPConnectionInternal *>(this)->binding);
+}
+
+TS_INLINE int64_t
+UDPConnection::cancel(void)
+{
+  UDPConnectionInternal *p = (UDPConnectionInternal *) this;
+
+  p->sendGenerationNum++;
+  p->lastPktStartTime = p->lastSentPktStartTime;
+  return p->lastSentPktTSSeqNum;
+}
+
+TS_INLINE void
+UDPConnection::SetLastSentPktTSSeqNum(int64_t sentSeqNum)
+{
+  ((UDPConnectionInternal *) this)->lastSentPktTSSeqNum = sentSeqNum;
+}
+
+TS_INLINE void
+UDPConnection::setContinuation(Continuation * c)
+{
+  // it is not safe to switch among continuations that don't share locks
+  ink_assert(mutex == NULL || c->mutex == mutex);
+  mutex = c->mutex;
+  ((UDPConnectionInternal *) this)->continuation = c;
+}
+
+#endif //__P_UDPCONNECTION_H_
diff --git a/iocore/net/P_UDPIOEvent.h b/iocore/net/P_UDPIOEvent.h
new file mode 100644
index 00000000..bc5511d3
--- /dev/null
+++ b/iocore/net/P_UDPIOEvent.h
@@ -0,0 +1,95 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _UDP_IO_EVENT_H_
+#define _UDP_IO_EVENT_H_
+// ugly -- just encapsulate the I/O result so that it can be passed
+// back to the caller via continuation handler.
+
+class UDPIOEvent:public Event
+{
+public:
+  UDPIOEvent():fd(-1), err(0), m(0), handle(0), b(0), bytesTransferred(0)
+  {
+  };
+  ~UDPIOEvent() {
+  };
+  void setInfo(int fd_, IOBufferBlock * b_, int bytesTransferred_, int errno_)
+  {
+    fd = fd_;
+    b = b_;
+    bytesTransferred = bytesTransferred_;
+    err = errno_;
+  };
+  void setInfo(int fd_, struct msghdr *m_, int bytesTransferred_, int errno_)
+  {
+    fd = fd_;
+    m = m_;
+    bytesTransferred = bytesTransferred_;
+    err = errno_;
+  };
+  void setHandle(void *v)
+  {
+    handle = v;
+  }
+  void *getHandle()
+  {
+    return handle;
+  }
+  void free();
+  int getBytesTransferred()
+  {
+    return bytesTransferred;
+  }
+  IOBufferBlock *getIOBufferBlock()
+  {
+    return b;
+  }
+  int getError()
+  {
+    return err;
+  }
+  Continuation *getContinuation()
+  {
+    return continuation;
+  }
+  static void free(UDPIOEvent * e);
+private:
+  void *operator  new(size_t size);     // undefined
+  int fd;
+  int err;                      // error code
+  struct msghdr *m;
+  void *handle;                 // some extra data for the client handler
+  Ptr<IOBufferBlock> b;      // holds buffer that I/O will go to
+  int bytesTransferred;         // actual bytes transferred
+};
+
+extern ClassAllocator<UDPIOEvent> UDPIOEventAllocator;
+TS_INLINE void
+UDPIOEvent::free(UDPIOEvent * e)
+{
+  e->b = NULL;
+  e->mutex = NULL;
+  UDPIOEventAllocator.free(e);
+}
+#endif
diff --git a/iocore/net/P_UDPNet.h b/iocore/net/P_UDPNet.h
new file mode 100644
index 00000000..d159e1af
--- /dev/null
+++ b/iocore/net/P_UDPNet.h
@@ -0,0 +1,341 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+  P_UDPNet.h
+  Private header for UDPNetProcessor
+
+
+ ****************************************************************************/
+
+#ifndef __P_UDPNET_H_
+#define __P_UDPNET_H_
+
+extern EventType ET_UDP;
+
+#include "I_UDPNet.h"
+#include "P_UDPPacket.h"
+
+//added by YTS Team, yamsat
+static inline PollCont *get_UDPPollCont(EThread *);
+
+#include "P_UnixUDPConnection.h"
+#include "P_UDPIOEvent.h"
+
+struct UDPNetHandler;
+
+struct UDPNetProcessorInternal : public UDPNetProcessor
+{
+  virtual int start(int n_udp_threads, size_t stacksize);
+  void udp_read_from_net(UDPNetHandler * nh, UDPConnection * uc);
+  int udp_callback(UDPNetHandler * nh, UDPConnection * uc, EThread * thread);
+
+  off_t pollCont_offset;
+  off_t udpNetHandler_offset;
+};
+
+extern UDPNetProcessorInternal udpNetInternal;
+
+
+
+// 20 ms slots; 2048 slots  => 40 sec. into the future
+#define SLOT_TIME_MSEC 20
+#define SLOT_TIME HRTIME_MSECONDS(SLOT_TIME_MSEC)
+#define N_SLOTS 2048
+
+class PacketQueue
+{
+ public:
+ PacketQueue()
+   : nPackets(0), now_slot(0)
+    {
+      lastPullLongTermQ = 0;
+      init();
+    }
+
+  virtual ~ PacketQueue()
+    { }
+
+  int nPackets;
+  ink_hrtime lastPullLongTermQ;
+  Queue<UDPPacketInternal> longTermQ;
+  Queue<UDPPacketInternal> bucket[N_SLOTS];
+  ink_hrtime delivery_time[N_SLOTS];
+  int now_slot;
+
+  void init(void)
+  {
+    now_slot = 0;
+    ink_hrtime now = ink_get_hrtime_internal();
+    int i = now_slot;
+    int j = 0;
+    while (j < N_SLOTS) {
+      delivery_time[i] = now + j * SLOT_TIME;
+      i = (i + 1) % N_SLOTS;
+      j++;
+    }
+  }
+
+  void addPacket(UDPPacketInternal * e, ink_hrtime now = 0)
+  {
+    int before = 0;
+    int slot;
+
+    if (IsCancelledPacket(e)) {
+      e->free();
+      return;
+    }
+
+    nPackets++;
+
+    ink_assert(delivery_time[now_slot]);
+
+    if (e->delivery_time < now)
+      e->delivery_time = now;
+
+    ink_hrtime s = e->delivery_time - delivery_time[now_slot];
+
+    if (s < 0) {
+      before = 1;
+      s = 0;
+    }
+    s = s / SLOT_TIME;
+    // if s >= N_SLOTS, either we are *REALLY* behind or someone is trying
+    // queue packets *WAY* too far into the future.
+    // need a thingy to hold packets in a "long-term" slot; then, pull packets
+    // from long-term slot whenever you advance.
+    if (s >= N_SLOTS - 1) {
+      longTermQ.enqueue(e);
+      e->in_heap = 0;
+      e->in_the_priority_queue = 1;
+      return;
+    }
+    slot = (s + now_slot) % N_SLOTS;
+
+    // so that slot+1 is still "in future".
+    ink_assert((before || delivery_time[slot] <= e->delivery_time) &&
+               (delivery_time[(slot + 1) % N_SLOTS] >= e->delivery_time));
+    e->in_the_priority_queue = 1;
+    e->in_heap = slot;
+    bucket[slot].enqueue(e);
+  }
+
+  UDPPacketInternal *firstPacket(ink_hrtime t)
+  {
+    if (t > delivery_time[now_slot]) {
+      return bucket[now_slot].head;
+    } else {
+      return NULL;
+    }
+  }
+
+  UDPPacketInternal *getFirstPacket()
+  {
+    nPackets--;
+    return dequeue_ready(0);
+  }
+
+  int size()
+  {
+    ink_assert(nPackets >= 0);
+    return nPackets;
+  }
+
+  bool IsCancelledPacket(UDPPacketInternal * p)
+  {
+    // discard packets that'll never get sent...
+    return ((p->conn->shouldDestroy()) || (p->conn->GetSendGenerationNumber() != p->reqGenerationNum));
+  }
+
+  void FreeCancelledPackets(int numSlots)
+  {
+    UDPPacketInternal *p;
+    Queue<UDPPacketInternal> tempQ;
+    int i, s;
+
+    for (i = 0; i < numSlots; i++) {
+      s = (now_slot + i) % N_SLOTS;
+      while (NULL != (p = bucket[s].dequeue())) {
+        if (IsCancelledPacket(p)) {
+          p->free();
+          continue;
+        }
+        tempQ.enqueue(p);
+      }
+      // remove and flip it over
+      while (NULL != (p = tempQ.dequeue())) {
+        bucket[s].enqueue(p);
+      }
+    }
+  }
+
+  void advanceNow(ink_hrtime t)
+  {
+    int s = now_slot;
+    int prev;
+
+    if (ink_hrtime_to_msec(t - lastPullLongTermQ) >= SLOT_TIME_MSEC * ((N_SLOTS - 1) / 2)) {
+      Queue<UDPPacketInternal> tempQ;
+      UDPPacketInternal *p;
+      // pull in all the stuff from long-term slot
+      lastPullLongTermQ = t;
+      // this is to handle wierdoness where someone is trying to queue a
+      // packet to be sent in SLOT_TIME_MSEC * N_SLOTS * (2+)---the packet
+      // will get back to longTermQ and we'll have an infinite loop.
+      while ((p = longTermQ.dequeue()) != NULL)
+        tempQ.enqueue(p);
+      while ((p = tempQ.dequeue()) != NULL)
+        addPacket(p);
+    }
+
+    while (!bucket[s].head && (t > delivery_time[s] + SLOT_TIME)) {
+      prev = (s + N_SLOTS - 1) % N_SLOTS;
+      delivery_time[s] = delivery_time[prev] + SLOT_TIME;
+      s = (s + 1) % N_SLOTS;
+      prev = (s + N_SLOTS - 1) % N_SLOTS;
+      ink_assert(delivery_time[prev] > delivery_time[s]);
+
+      if (s == now_slot) {
+        init();
+        s = 0;
+        break;
+      }
+    }
+
+    if (s != now_slot)
+      Debug("udpnet-service", "Advancing by (%d slots): behind by %" PRId64 " ms",
+            s - now_slot, ink_hrtime_to_msec(t - delivery_time[now_slot]));
+    now_slot = s;
+  }
+
+ private:
+  void remove(UDPPacketInternal * e)
+  {
+    nPackets--;
+    ink_assert(e->in_the_priority_queue);
+    e->in_the_priority_queue = 0;
+    bucket[e->in_heap].remove(e);
+  }
+
+ public:
+  UDPPacketInternal *dequeue_ready(ink_hrtime t)
+  {
+    (void) t;
+    UDPPacketInternal *e = bucket[now_slot].dequeue();
+    if (e) {
+      ink_assert(e->in_the_priority_queue);
+      e->in_the_priority_queue = 0;
+    }
+    advanceNow(t);
+    return e;
+  }
+
+  void check_ready(ink_hrtime now)
+  {
+    (void) now;
+  }
+
+  ink_hrtime earliest_timeout()
+  {
+    int s = now_slot;
+    for (int i = 0; i < N_SLOTS; i++) {
+      if (bucket[s].head) {
+        return delivery_time[s];
+      }
+      s = (s + 1) % N_SLOTS;
+    }
+    return HRTIME_FOREVER;
+  }
+
+ private:
+  void kill_cancelled_events()
+  { }
+};
+
+
+class UDPQueue
+{
+  PacketQueue pipeInfo;
+  ink_hrtime last_report;
+  ink_hrtime last_service;
+  int packets;
+  int added;
+
+
+public:
+  InkAtomicList atomicQueue;
+
+  void service(UDPNetHandler *);
+
+  void SendPackets();
+  void SendUDPPacket(UDPPacketInternal * p, int32_t pktLen);
+
+  // Interface exported to the outside world
+  void send(UDPPacket * p);
+
+  UDPQueue();
+  ~UDPQueue();
+};
+
+
+void initialize_thread_for_udp_net(EThread * thread);
+
+struct UDPNetHandler: public Continuation
+{
+public:
+  // to be polled for read
+  Que(UnixUDPConnection, polling_link) udp_polling;
+  // to be called back with data
+  Que(UnixUDPConnection, callback_link) udp_callbacks;
+  // outgoing packets
+  InkAtomicList udpAtomicQueue;
+  UDPQueue udpOutQueue;
+  // to hold the newly created descriptors before scheduling them on
+  // the servicing buckets.
+  // atomically added to by a thread creating a new connection with
+  // UDPBind
+  InkAtomicList udpNewConnections;
+  Event *trigger_event;
+  ink_hrtime nextCheck;
+  ink_hrtime lastCheck;
+
+  int startNetEvent(int event, Event * data);
+  int mainNetEvent(int event, Event * data);
+
+  UDPNetHandler();
+};
+
+struct PollCont;
+static inline PollCont *
+get_UDPPollCont(EThread * t)
+{
+  return (PollCont *)ETHREAD_GET_PTR(t, udpNetInternal.pollCont_offset);
+}
+
+static inline UDPNetHandler *
+get_UDPNetHandler(EThread * t)
+{
+  return (UDPNetHandler *)ETHREAD_GET_PTR(t, udpNetInternal.udpNetHandler_offset);
+}
+
+#endif //__P_UDPNET_H_
diff --git a/iocore/net/P_UDPPacket.h b/iocore/net/P_UDPPacket.h
new file mode 100644
index 00000000..f56e0b9c
--- /dev/null
+++ b/iocore/net/P_UDPPacket.h
@@ -0,0 +1,256 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_UDPPacket.h
+  Implementation of UDPPacket
+
+ ****************************************************************************/
+
+
+#ifndef __P_UDPPPACKET_H_
+#define __P_UDPPPACKET_H_
+
+#include "I_UDPNet.h"
+
+class UDPPacketInternal:public UDPPacket
+{
+
+public:
+  UDPPacketInternal();
+  virtual ~ UDPPacketInternal();
+
+  void append_block_internal(IOBufferBlock * block);
+
+  virtual void free();
+
+  SLINK(UDPPacketInternal, alink);  // atomic link
+  // packet scheduling stuff: keep it a doubly linked list
+  uint64_t pktLength;
+
+  int reqGenerationNum;
+  ink_hrtime delivery_time;   // when to deliver packet
+
+  Ptr<IOBufferBlock> chain;
+  Continuation *cont;         // callback on error
+  UDPConnectionInternal *conn;        // connection where packet should be sent to.
+
+  int in_the_priority_queue;
+  int in_heap;
+};
+
+inkcoreapi extern ClassAllocator<UDPPacketInternal> udpPacketAllocator;
+
+TS_INLINE
+UDPPacketInternal::UDPPacketInternal()
+  : pktLength(0), reqGenerationNum(0), delivery_time(0), cont(NULL),
+    conn(NULL), in_the_priority_queue(0), in_heap(0)
+{
+  memset(&from, '\0', sizeof(from));
+  memset(&to, '\0', sizeof(to));
+}
+
+TS_INLINE
+UDPPacketInternal::~UDPPacketInternal()
+{
+  chain = NULL;
+}
+
+TS_INLINE void
+UDPPacketInternal::free()
+{
+  chain = NULL;
+  if (conn)
+    conn->Release();
+  conn = NULL;
+  udpPacketAllocator.free(this);
+}
+
+TS_INLINE void
+UDPPacket::append_block(IOBufferBlock * block)
+{
+  UDPPacketInternal *p = (UDPPacketInternal *) this;
+
+  if (block) {
+    if (p->chain) {           // append to end
+      IOBufferBlock *last = p->chain;
+      while (last->next != NULL) {
+        last = last->next;
+      }
+      last->next = block;
+    } else {
+      p->chain = block;
+    }
+  }
+}
+
+TS_INLINE int64_t
+UDPPacket::getPktLength()
+{
+  UDPPacketInternal *p = (UDPPacketInternal *) this;
+  IOBufferBlock *b;
+
+  p->pktLength = 0;
+  b = p->chain;
+  while (b) {
+    p->pktLength += b->read_avail();
+    b = b->next;
+  }
+  return p->pktLength;
+}
+
+TS_INLINE void
+UDPPacket::free()
+{
+  ((UDPPacketInternal *) this)->free();
+}
+
+TS_INLINE void
+UDPPacket::setContinuation(Continuation * c)
+{
+  ((UDPPacketInternal *) this)->cont = c;
+}
+
+TS_INLINE void
+UDPPacket::setConnection(UDPConnection * c)
+{
+  /*Code reviewed by Case Larsen.  Previously, we just had
+     ink_assert(!conn).  This prevents tunneling of packets
+     correctly---that is, you get packets from a server on a udp
+     conn. and want to send it to a player on another connection, the
+     assert will prevent that.  The "if" clause enables correct
+     handling of the connection ref. counts in such a scenario. */
+
+  UDPConnectionInternal *&conn = ((UDPPacketInternal *) this)->conn;
+
+  if (conn) {
+    if (conn == c)
+      return;
+    conn->Release();
+    conn = NULL;
+  }
+  conn = (UDPConnectionInternal *) c;
+  conn->AddRef();
+}
+
+TS_INLINE IOBufferBlock *
+UDPPacket::getIOBlockChain(void)
+{
+  return ((UDPPacketInternal *) this)->chain;
+}
+
+TS_INLINE UDPConnection *
+UDPPacket::getConnection(void)
+{
+  return ((UDPPacketInternal *) this)->conn;
+}
+
+TS_INLINE UDPPacket *
+new_UDPPacket(struct sockaddr const* to, ink_hrtime when, char *buf, int len)
+{
+  UDPPacketInternal *p = udpPacketAllocator.alloc();
+
+  p->in_the_priority_queue = 0;
+  p->in_heap = 0;
+  p->delivery_time = when;
+  ats_ip_copy(&p->to, to);
+
+  if (buf) {
+    IOBufferBlock *body = new_IOBufferBlock();
+    body->alloc(iobuffer_size_to_index(len));
+    memcpy(body->end(), buf, len);
+    body->fill(len);
+    p->append_block(body);
+  }
+
+  return p;
+}
+
+TS_INLINE UDPPacket *
+new_UDPPacket(struct sockaddr const* to, ink_hrtime when, IOBufferBlock * buf, int len)
+{
+  (void) len;
+  UDPPacketInternal *p = udpPacketAllocator.alloc();
+  IOBufferBlock *body;
+
+  p->in_the_priority_queue = 0;
+  p->in_heap = 0;
+  p->delivery_time = when;
+  ats_ip_copy(&p->to, to);
+
+  while (buf) {
+    body = buf->clone();
+    p->append_block(body);
+    buf = buf->next;
+  }
+  return p;
+}
+
+TS_INLINE UDPPacket *
+new_UDPPacket(struct sockaddr const* to, ink_hrtime when, Ptr<IOBufferBlock> buf)
+{
+  UDPPacketInternal *p = udpPacketAllocator.alloc();
+
+  p->in_the_priority_queue = 0;
+  p->in_heap = 0;
+  p->delivery_time = when;
+  if (to)
+    ats_ip_copy(&p->to, to);
+  p->chain = buf;
+  return p;
+}
+
+TS_INLINE UDPPacket *
+new_UDPPacket(ink_hrtime when, Ptr<IOBufferBlock> buf)
+{
+  return new_UDPPacket(NULL, when, buf);
+}
+
+TS_INLINE UDPPacket *
+new_incoming_UDPPacket(struct sockaddr * from, char *buf, int len)
+{
+  UDPPacketInternal *p = udpPacketAllocator.alloc();
+
+  p->in_the_priority_queue = 0;
+  p->in_heap = 0;
+  p->delivery_time = 0;
+  ats_ip_copy(&p->from, from);
+
+  IOBufferBlock *body = new_IOBufferBlock();
+  body->alloc(iobuffer_size_to_index(len));
+  memcpy(body->end(), buf, len);
+  body->fill(len);
+  p->append_block(body);
+
+  return p;
+}
+
+TS_INLINE UDPPacket *
+new_UDPPacket()
+{
+  UDPPacketInternal *p = udpPacketAllocator.alloc();
+  return p;
+}
+
+#endif //__P_UDPPPACKET_H_
diff --git a/iocore/net/P_UnixCompletionUtil.h b/iocore/net/P_UnixCompletionUtil.h
new file mode 100644
index 00000000..4a7f5475
--- /dev/null
+++ b/iocore/net/P_UnixCompletionUtil.h
@@ -0,0 +1,104 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _UNIX_COMPLETION_UTIL_H_
+#define _UNIX_COMPLETION_UTIL_H_
+
+// platform specific wrappers for dealing with I/O completion events
+// passed into and back from the I/O core.
+#include "P_UDPIOEvent.h"
+
+TS_INLINE Event *
+completionUtil::create()
+{
+  UDPIOEvent *u = UDPIOEventAllocator.alloc();
+  return u;
+}
+TS_INLINE void
+completionUtil::destroy(Event * e)
+{
+  ink_assert(e != NULL);
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  UDPIOEvent::free(u);
+}
+TS_INLINE void
+completionUtil::setThread(Event * e, EThread * t)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->ethread = t;
+}
+TS_INLINE void
+completionUtil::setContinuation(Event * e, Continuation * c)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  *(Action *) u = c;
+}
+TS_INLINE void *
+completionUtil::getHandle(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getHandle();
+}
+TS_INLINE void
+completionUtil::setHandle(Event * e, void *handle)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->setHandle(handle);
+}
+TS_INLINE void
+completionUtil::setInfo(Event * e, int fd, IOBufferBlock * buf, int actual, int errno_)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->setInfo(fd, buf, actual, errno_);
+}
+TS_INLINE void
+completionUtil::setInfo(Event * e, int fd, struct msghdr *msg, int actual, int errno_)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->setInfo(fd, msg, actual, errno_);
+}
+TS_INLINE int
+completionUtil::getBytesTransferred(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getBytesTransferred();
+}
+TS_INLINE IOBufferBlock *
+completionUtil::getIOBufferBlock(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getIOBufferBlock();
+}
+TS_INLINE Continuation *
+completionUtil::getContinuation(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getContinuation();
+}
+TS_INLINE int
+completionUtil::getError(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getError();
+}
+#endif
diff --git a/iocore/net/P_UnixNet.h b/iocore/net/P_UnixNet.h
new file mode 100644
index 00000000..5d52dce8
--- /dev/null
+++ b/iocore/net/P_UnixNet.h
@@ -0,0 +1,618 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_UNIXNET_H__
+#define __P_UNIXNET_H__
+
+#include "libts.h"
+
+#define USE_EDGE_TRIGGER_EPOLL  1
+#define USE_EDGE_TRIGGER_KQUEUE 1
+#define USE_EDGE_TRIGGER_PORT   1
+
+
+#define EVENTIO_NETACCEPT       1
+#define EVENTIO_READWRITE_VC    2
+#define EVENTIO_DNS_CONNECTION  3
+#define EVENTIO_UDP_CONNECTION  4
+#define EVENTIO_ASYNC_SIGNAL    5
+
+#if TS_USE_EPOLL
+#ifdef USE_EDGE_TRIGGER_EPOLL
+#define USE_EDGE_TRIGGER 1
+#define EVENTIO_READ (EPOLLIN|EPOLLET)
+#define EVENTIO_WRITE (EPOLLOUT|EPOLLET)
+#else
+#define EVENTIO_READ EPOLLIN
+#define EVENTIO_WRITE EPOLLOUT
+#endif
+#define EVENTIO_ERROR (EPOLLERR|EPOLLPRI|EPOLLHUP)
+#endif
+
+#if TS_USE_KQUEUE
+#ifdef USE_EDGE_TRIGGER_KQUEUE
+#define USE_EDGE_TRIGGER 1
+#define INK_EV_EDGE_TRIGGER EV_CLEAR
+#else
+#define INK_EV_EDGE_TRIGGER 0
+#endif
+#define EVENTIO_READ INK_EVP_IN
+#define EVENTIO_WRITE INK_EVP_OUT
+#define EVENTIO_ERROR (0x010|0x002|0x020) // ERR PRI HUP
+#endif
+#if TS_USE_PORT
+#ifdef USE_EDGE_TRIGGER_PORT
+#define USE_EDGE_TRIGGER 1
+#endif
+#define EVENTIO_READ  POLLIN
+#define EVENTIO_WRITE POLLOUT
+#define EVENTIO_ERROR (POLLERR|POLLPRI|POLLHUP)
+#endif
+
+struct PollDescriptor;
+typedef PollDescriptor *EventLoop;
+
+class UnixNetVConnection;
+class UnixUDPConnection;
+struct DNSConnection;
+struct NetAccept;
+struct EventIO
+{
+  int fd;
+#if TS_USE_KQUEUE || TS_USE_EPOLL && !defined(USE_EDGE_TRIGGER) || TS_USE_PORT
+  int events;
+#endif
+  EventLoop event_loop;
+  int type;
+  union
+  {
+    Continuation *c;
+    UnixNetVConnection *vc;
+    DNSConnection *dnscon;
+    NetAccept *na;
+    UnixUDPConnection *uc;
+  } data;
+  int start(EventLoop l, DNSConnection *vc, int events);
+  int start(EventLoop l, NetAccept *vc, int events);
+  int start(EventLoop l, UnixNetVConnection *vc, int events);
+  int start(EventLoop l, UnixUDPConnection *vc, int events);
+  int start(EventLoop l, int fd, Continuation *c, int events);
+  // Change the existing events by adding modify(EVENTIO_READ)
+  // or removing modify(-EVENTIO_READ), for level triggered I/O
+  int modify(int events);
+  // Refresh the existing events (i.e. KQUEUE EV_CLEAR), for edge triggered I/O
+  int refresh(int events);
+  int stop();
+  int close();
+  EventIO() {
+    type = 0;
+    data.c = 0;
+  }
+};
+
+#include "P_UnixNetProcessor.h"
+#include "P_UnixNetVConnection.h"
+#include "P_NetAccept.h"
+#include "P_DNSConnection.h"
+#include "P_UnixUDPConnection.h"
+#include "P_UnixPollDescriptor.h"
+
+class UnixNetVConnection;
+class NetHandler;
+typedef int (NetHandler::*NetContHandler) (int, void *);
+typedef unsigned int uint32;
+
+extern ink_hrtime last_throttle_warning;
+extern ink_hrtime last_shedding_warning;
+extern ink_hrtime emergency_throttle_time;
+extern int net_connections_throttle;
+extern int fds_throttle;
+extern int fds_limit;
+extern ink_hrtime last_transient_accept_error;
+extern int http_accept_port_number;
+
+
+//#define INACTIVITY_TIMEOUT
+//
+// Configuration Parameter had to move here to share
+// between UnixNet and UnixUDPNet or SSLNet modules.
+// Design notes are in Memo.NetDesign
+//
+
+#define THROTTLE_FD_HEADROOM                      (128 + 64)    // CACHE_DB_FDS + 64
+
+#define TRANSIENT_ACCEPT_ERROR_MESSAGE_EVERY      HRTIME_HOURS(24)
+#define NET_RETRY_DELAY                           HRTIME_MSECONDS(10)
+
+// also the 'throttle connect headroom'
+#define THROTTLE_AT_ONCE                          5
+#define EMERGENCY_THROTTLE                        16
+#define HYPER_EMERGENCY_THROTTLE                  6
+
+#define NET_THROTTLE_ACCEPT_HEADROOM              1.1   // 10%
+#define NET_THROTTLE_CONNECT_HEADROOM             1.0   // 0%
+#define NET_THROTTLE_MESSAGE_EVERY                HRTIME_MINUTES(10)
+#define NET_PERIOD                                -HRTIME_MSECONDS(5)
+#define ACCEPT_PERIOD                             -HRTIME_MSECONDS(4)
+#define NET_THROTTLE_DELAY                        50    /* mseconds */
+
+#define PRINT_IP(x) ((uint8_t*)&(x))[0],((uint8_t*)&(x))[1], ((uint8_t*)&(x))[2],((uint8_t*)&(x))[3]
+
+
+// function prototype needed for SSLUnixNetVConnection
+unsigned int net_next_connection_number();
+
+struct PollCont:public Continuation
+{
+  NetHandler *net_handler;
+  PollDescriptor *pollDescriptor;
+  PollDescriptor *nextPollDescriptor;
+  int poll_timeout;
+
+  PollCont(ProxyMutex * m, int pt = net_config_poll_timeout);
+  PollCont(ProxyMutex * m, NetHandler * nh, int pt = net_config_poll_timeout);
+  ~PollCont();
+  int pollEvent(int event, Event * e);
+};
+
+
+//
+// NetHandler
+//
+// A NetHandler handles the Network IO operations.  It maintains
+// lists of operations at multiples of it's periodicity.
+//
+class NetHandler:public Continuation
+{
+public:
+  Event *trigger_event;
+  QueM(UnixNetVConnection, NetState, read, ready_link) read_ready_list;
+  QueM(UnixNetVConnection, NetState, write, ready_link) write_ready_list;
+  Que(UnixNetVConnection, link) open_list;
+  DList(UnixNetVConnection, cop_link) cop_list;
+  ASLLM(UnixNetVConnection, NetState, read, enable_link) read_enable_list;
+  ASLLM(UnixNetVConnection, NetState, write, enable_link) write_enable_list;
+
+  time_t sec;
+  int cycles;
+
+  int startNetEvent(int event, Event * data);
+  int mainNetEvent(int event, Event * data);
+  int mainNetEventExt(int event, Event * data);
+  void process_enabled_list(NetHandler *);
+
+  NetHandler();
+};
+
+static inline NetHandler *
+get_NetHandler(EThread * t)
+{
+  return (NetHandler *) ETHREAD_GET_PTR(t, unix_netProcessor.netHandler_offset);
+}
+static inline PollCont *
+get_PollCont(EThread * t)
+{
+  return (PollCont *) ETHREAD_GET_PTR(t, unix_netProcessor.pollCont_offset);
+}
+static inline PollDescriptor *
+get_PollDescriptor(EThread * t)
+{
+  PollCont *p = get_PollCont(t);
+  return p->pollDescriptor;
+}
+
+
+enum ThrottleType
+{ ACCEPT, CONNECT };
+
+TS_INLINE int
+net_connections_to_throttle(ThrottleType t)
+{
+
+  double headroom = t == ACCEPT ? NET_THROTTLE_ACCEPT_HEADROOM : NET_THROTTLE_CONNECT_HEADROOM;
+  int64_t sval = 0;
+
+  NET_READ_GLOBAL_DYN_SUM(net_connections_currently_open_stat, sval);
+  int currently_open = (int) sval;
+  // deal with race if we got to multiple net threads
+  if (currently_open < 0)
+    currently_open = 0;
+  return (int) (currently_open * headroom);
+}
+
+TS_INLINE void
+check_shedding_warning()
+{
+  ink_hrtime t = ink_get_hrtime();
+  if (t - last_shedding_warning > NET_THROTTLE_MESSAGE_EVERY) {
+    last_shedding_warning = t;
+    REC_SignalWarning(REC_SIGNAL_SYSTEM_ERROR, "number of connections reaching shedding limit");
+  }
+}
+
+TS_INLINE int
+emergency_throttle(ink_hrtime now)
+{
+  return emergency_throttle_time > now;
+}
+
+TS_INLINE int
+check_net_throttle(ThrottleType t, ink_hrtime now)
+{
+  int connections = net_connections_to_throttle(t);
+
+  if (connections >= net_connections_throttle)
+    return true;
+
+  if (emergency_throttle(now))
+    return true;
+
+  return false;
+}
+
+TS_INLINE void
+check_throttle_warning()
+{
+  ink_hrtime t = ink_get_hrtime();
+  if (t - last_throttle_warning > NET_THROTTLE_MESSAGE_EVERY) {
+    last_throttle_warning = t;
+    REC_SignalWarning(REC_SIGNAL_SYSTEM_ERROR, "too many connections, throttling");
+
+  }
+}
+
+//
+// Emergency throttle when we are close to exhausting file descriptors.
+// Block all accepts or connects for N seconds where N
+// is the amount into the emergency fd stack squared
+// (e.g. on the last file descriptor we have 14 * 14 = 196 seconds
+// of emergency throttle).
+//
+// Hyper Emergency throttle when we are very close to exhausting file
+// descriptors.  Close the connection immediately, the upper levels
+// will recover.
+//
+TS_INLINE int
+check_emergency_throttle(Connection & con)
+{
+  int fd = con.fd;
+  int emergency = fds_limit - EMERGENCY_THROTTLE;
+  if (fd > emergency) {
+    int over = fd - emergency;
+    emergency_throttle_time = ink_get_hrtime() + (over * over) * HRTIME_SECOND;
+    REC_SignalWarning(REC_SIGNAL_SYSTEM_ERROR, "too many open file descriptors, emergency throttling");
+    int hyper_emergency = fds_limit - HYPER_EMERGENCY_THROTTLE;
+    if (fd > hyper_emergency)
+      con.close();
+    return true;
+  }
+  return false;
+}
+
+
+TS_INLINE int
+change_net_connections_throttle(const char *token, RecDataT data_type, RecData value, void *data)
+{
+  (void) token;
+  (void) data_type;
+  (void) value;
+  (void) data;
+  int throttle = fds_limit - THROTTLE_FD_HEADROOM;
+  if (fds_throttle < 0)
+    net_connections_throttle = throttle;
+  else {
+    net_connections_throttle = fds_throttle;
+    if (net_connections_throttle > throttle)
+      net_connections_throttle = throttle;
+  }
+  return 0;
+}
+
+
+// 1  - transient
+// 0  - report as warning
+// -1 - fatal
+TS_INLINE int
+accept_error_seriousness(int res)
+{
+  switch (res) {
+  case -EAGAIN:
+  case -ECONNABORTED:
+  case -ECONNRESET:            // for Linux
+  case -EPIPE:                 // also for Linux
+    return 1;
+  case -EMFILE:
+  case -ENOMEM:
+#if defined(ENOSR) && !defined(freebsd)
+  case -ENOSR:
+#endif
+    ink_assert(!"throttling misconfigured: set too high");
+#ifdef ENOBUFS
+  case -ENOBUFS:
+#endif
+#ifdef ENFILE
+  case -ENFILE:
+#endif
+    return 0;
+  case -EINTR:
+    ink_assert(!"should be handled at a lower level");
+    return 0;
+#if defined(EPROTO) && !defined(freebsd)
+  case -EPROTO:
+#endif
+  case -EOPNOTSUPP:
+  case -ENOTSOCK:
+  case -ENODEV:
+  case -EBADF:
+  default:
+    return -1;
+  }
+}
+
+TS_INLINE void
+check_transient_accept_error(int res)
+{
+  ink_hrtime t = ink_get_hrtime();
+  if (!last_transient_accept_error || t - last_transient_accept_error > TRANSIENT_ACCEPT_ERROR_MESSAGE_EVERY) {
+    last_transient_accept_error = t;
+    Warning("accept thread received transient error: errno = %d", -res);
+#if defined(linux)
+    if (res == -ENOBUFS || res == -ENFILE)
+      Warning("errno : %d consider a memory upgrade", -res);
+#endif
+  }
+}
+
+//
+// Disable a UnixNetVConnection
+//
+static inline void
+read_disable(NetHandler * nh, UnixNetVConnection * vc)
+{
+#ifdef INACTIVITY_TIMEOUT
+  if (vc->inactivity_timeout) {
+    if (!vc->write.enabled) {
+      vc->inactivity_timeout->cancel_action();
+      vc->inactivity_timeout = NULL;
+    }
+  }
+#else
+  if (!vc->write.enabled)
+    vc->next_inactivity_timeout_at = 0;
+#endif
+  vc->read.enabled = 0;
+  nh->read_ready_list.remove(vc);
+  vc->ep.modify(-EVENTIO_READ);
+}
+
+static inline void
+write_disable(NetHandler * nh, UnixNetVConnection * vc)
+{
+#ifdef INACTIVITY_TIMEOUT
+  if (vc->inactivity_timeout) {
+    if (!vc->read.enabled) {
+      vc->inactivity_timeout->cancel_action();
+      vc->inactivity_timeout = NULL;
+    }
+  }
+#else
+  if (!vc->read.enabled)
+    vc->next_inactivity_timeout_at = 0;
+#endif
+  vc->write.enabled = 0;
+  nh->write_ready_list.remove(vc);
+  vc->ep.modify(-EVENTIO_WRITE);
+}
+
+TS_INLINE int EventIO::start(EventLoop l, DNSConnection *vc, int events) {
+  type = EVENTIO_DNS_CONNECTION;
+  return start(l, vc->fd, (Continuation*)vc, events);
+}
+TS_INLINE int EventIO::start(EventLoop l, NetAccept *vc, int events) {
+  type = EVENTIO_NETACCEPT;
+  return start(l, vc->server.fd, (Continuation*)vc, events);
+}
+TS_INLINE int EventIO::start(EventLoop l, UnixNetVConnection *vc, int events) {
+  type = EVENTIO_READWRITE_VC;
+  return start(l, vc->con.fd, (Continuation*)vc, events);
+}
+TS_INLINE int EventIO::start(EventLoop l, UnixUDPConnection *vc, int events) {
+  type = EVENTIO_UDP_CONNECTION;
+  return start(l, vc->fd, (Continuation*)vc, events);
+}
+TS_INLINE int EventIO::close() {
+  stop();
+  switch (type) {
+    default: ink_assert(!"case");
+    case EVENTIO_DNS_CONNECTION: return data.dnscon->close(); break;
+    case EVENTIO_NETACCEPT: return data.na->server.close(); break;
+    case EVENTIO_READWRITE_VC: return data.vc->con.close(); break;
+  }
+  return -1;
+}
+
+TS_INLINE int EventIO::start(EventLoop l, int afd, Continuation *c, int e) {
+  data.c = c;
+  fd = afd;
+  event_loop = l;
+#if TS_USE_EPOLL
+  struct epoll_event ev;
+  memset(&ev, 0, sizeof(ev));
+  ev.events = e;
+  ev.data.ptr = this;
+#ifndef USE_EDGE_TRIGGER
+  events = e;
+#endif
+  return epoll_ctl(event_loop->epoll_fd, EPOLL_CTL_ADD, fd, &ev);
+#endif
+#if TS_USE_KQUEUE
+  events = e;
+  struct kevent ev[2];
+  int n = 0;
+  if (e & EVENTIO_READ)
+    EV_SET(&ev[n++], fd, EVFILT_READ, EV_ADD|INK_EV_EDGE_TRIGGER, 0, 0, this);
+  if (e & EVENTIO_WRITE)
+    EV_SET(&ev[n++], fd, EVFILT_WRITE, EV_ADD|INK_EV_EDGE_TRIGGER, 0, 0, this);
+  return kevent(l->kqueue_fd, &ev[0], n, NULL, 0, NULL);
+#endif
+#if TS_USE_PORT
+  events = e;
+  int retval = port_associate(event_loop->port_fd, PORT_SOURCE_FD, fd, events, this);
+  Debug("iocore_eventio", "[EventIO::start] e(%d), events(%d), %d[%s]=port_associate(%d,%d,%d,%d,%p)", e, events, retval, retval<0? strerror(errno) : "ok", event_loop->port_fd, PORT_SOURCE_FD, fd, events, this);
+  return retval;
+#endif
+}
+
+TS_INLINE int EventIO::modify(int e) {
+#if TS_USE_EPOLL && !defined(USE_EDGE_TRIGGER)
+  struct epoll_event ev;
+  memset(&ev, 0, sizeof(ev));
+  int new_events = events, old_events = events;
+  if (e < 0)
+    new_events &= ~(-e);
+  else
+    new_events |= e;
+  events = new_events;
+  ev.events = new_events;
+  ev.data.ptr = this;
+  if (!new_events)
+    return epoll_ctl(event_loop->epoll_fd, EPOLL_CTL_DEL, fd, &ev);
+  else if (!old_events)
+    return epoll_ctl(event_loop->epoll_fd, EPOLL_CTL_ADD, fd, &ev);
+  else
+    return epoll_ctl(event_loop->epoll_fd, EPOLL_CTL_MOD, fd, &ev);
+#endif
+#if TS_USE_KQUEUE && !defined(USE_EDGE_TRIGGER)
+  int n = 0;
+  struct kevent ev[2];
+  int ee = events;
+  if (e < 0) {
+    ee &= ~(-e);
+    if ((-e) & EVENTIO_READ)
+      EV_SET(&ev[n++], fd, EVFILT_READ, EV_DELETE, 0, 0, this);
+    if ((-e) & EVENTIO_WRITE)
+      EV_SET(&ev[n++], fd, EVFILT_WRITE, EV_DELETE, 0, 0, this);
+  } else {
+    ee |= e;
+    if (e & EVENTIO_READ)
+      EV_SET(&ev[n++], fd, EVFILT_READ, EV_ADD|INK_EV_EDGE_TRIGGER, 0, 0, this);
+    if (e & EVENTIO_WRITE)
+      EV_SET(&ev[n++], fd, EVFILT_WRITE, EV_ADD|INK_EV_EDGE_TRIGGER, 0, 0, this);
+  }
+  events = ee;
+  if (n)
+    return kevent(event_loop->kqueue_fd, &ev[0], n, NULL, 0, NULL);
+  else
+    return 0;
+#endif
+#if TS_USE_PORT
+  int n = 0;
+  int ne = e;
+  if (e < 0) {
+    if (((-e) & events)) {
+      ne = ~(-e) & events;
+      if ((-e) & EVENTIO_READ)
+	n++;
+      if ((-e) & EVENTIO_WRITE)
+	n++;
+    }
+  } else {
+    if (!(e & events)) {
+      ne = events | e;
+      if (e & EVENTIO_READ)
+	n++;
+      if (e & EVENTIO_WRITE)
+	n++;
+    }
+  }
+  if (n && ne && event_loop) {
+    events = ne;
+    int retval = port_associate(event_loop->port_fd, PORT_SOURCE_FD, fd, events, this);
+    Debug("iocore_eventio", "[EventIO::modify] e(%d), ne(%d), events(%d), %d[%s]=port_associate(%d,%d,%d,%d,%p)", e, ne, events, retval, retval<0? strerror(errno) : "ok", event_loop->port_fd, PORT_SOURCE_FD, fd, events, this);
+    return retval;
+  }
+  return 0;
+#else
+  (void)e; // ATS_UNUSED
+  return 0;
+#endif
+}
+
+TS_INLINE int EventIO::refresh(int e) {
+#if TS_USE_KQUEUE && defined(USE_EDGE_TRIGGER)
+  e = e & events;
+  struct kevent ev[2];
+  int n = 0;
+  if (e & EVENTIO_READ)
+    EV_SET(&ev[n++], fd, EVFILT_READ, EV_ADD|INK_EV_EDGE_TRIGGER, 0, 0, this);
+  if (e & EVENTIO_WRITE)
+    EV_SET(&ev[n++], fd, EVFILT_WRITE, EV_ADD|INK_EV_EDGE_TRIGGER, 0, 0, this);
+  if (n)
+    return kevent(event_loop->kqueue_fd, &ev[0], n, NULL, 0, NULL);
+  else
+    return 0;
+#endif
+#if TS_USE_PORT
+  int n = 0;
+  int ne = e;
+  if ((e & events)) {
+    ne = events | e;
+    if (e & EVENTIO_READ)
+      n++;
+    if (e & EVENTIO_WRITE)
+      n++;
+    if (n && ne && event_loop) {
+      events = ne;
+      int retval = port_associate(event_loop->port_fd, PORT_SOURCE_FD, fd, events, this);
+      Debug("iocore_eventio", "[EventIO::refresh] e(%d), ne(%d), events(%d), %d[%s]=port_associate(%d,%d,%d,%d,%p)",
+            e, ne, events, retval, retval<0? strerror(errno) : "ok", event_loop->port_fd, PORT_SOURCE_FD, fd, events, this);
+      return retval;
+    }
+  }
+  return 0;
+#else
+  (void)e; // ATS_UNUSED
+  return 0;
+#endif
+}
+
+
+TS_INLINE int EventIO::stop() {
+  if (event_loop) {
+#if TS_USE_EPOLL
+    struct epoll_event ev;
+    memset(&ev, 0, sizeof(struct epoll_event));
+    ev.events = EPOLLIN | EPOLLOUT | EPOLLET;
+    return epoll_ctl(event_loop->epoll_fd, EPOLL_CTL_DEL, fd, &ev);
+#endif
+#if TS_USE_PORT
+    int retval = port_dissociate(event_loop->port_fd, PORT_SOURCE_FD, fd);
+    Debug("iocore_eventio", "[EventIO::stop] %d[%s]=port_dissociate(%d,%d,%d)", retval, retval<0? strerror(errno) : "ok", event_loop->port_fd, PORT_SOURCE_FD, fd);
+    return retval;
+#endif
+    event_loop = 0;
+  }
+  return 0;
+}
+
+#endif
diff --git a/iocore/net/P_UnixNetProcessor.h b/iocore/net/P_UnixNetProcessor.h
new file mode 100644
index 00000000..47994c19
--- /dev/null
+++ b/iocore/net/P_UnixNetProcessor.h
@@ -0,0 +1,98 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __UNIXNETPROCESSOR_H__
+#define __UNIXNETPROCESSOR_H__
+#include "I_Net.h"
+#include "P_NetAccept.h"
+
+class UnixNetVConnection;
+
+//////////////////////////////////////////////////////////////////
+//
+//  class UnixNetProcessor
+//
+//////////////////////////////////////////////////////////////////
+struct UnixNetProcessor:public NetProcessor
+{
+public:
+  virtual Action *accept_internal (
+    Continuation * cont,
+    int fd,
+    AcceptOptions const &opt
+  );
+
+  Action *connect_re_internal(
+    Continuation * cont,
+    sockaddr const* target,
+    NetVCOptions * options = NULL
+  );
+  Action *connect(
+    Continuation * cont,
+    UnixNetVConnection ** vc,
+    sockaddr const* target,
+    NetVCOptions * opt = NULL
+  );
+
+  // Virtual function allows etype to be upgraded to ET_SSL for SSLNetProcessor.  Does
+  // nothing for NetProcessor
+  virtual void upgradeEtype(EventType & /* etype ATS_UNUSED */) { };
+
+  virtual NetAccept *createNetAccept();
+  virtual NetVConnection * allocate_vc(EThread *t);
+
+  virtual int start(int number_of_net_threads, size_t stacksize);
+
+  char *throttle_error_message;
+  Event *accept_thread_event;
+
+  // offsets for per thread data structures
+  off_t netHandler_offset;
+  off_t pollCont_offset;
+
+  // we probably wont need these members
+  int n_netthreads;
+  EThread **netthreads;
+};
+
+
+TS_INLINE Action *
+NetProcessor::connect_re(
+  Continuation * cont,
+  sockaddr const* addr,
+  NetVCOptions * opts
+) {
+  return static_cast<UnixNetProcessor *>(this)->connect_re_internal(cont, addr, opts);
+}
+
+extern UnixNetProcessor unix_netProcessor;
+
+//
+// Set up a thread to receive events from the NetProcessor
+// This function should be called for all threads created to
+// accept such events by the EventProcesor.
+//
+extern void initialize_thread_for_net(EThread * thread);
+
+//#include "UnixNet.h"
+#endif
diff --git a/iocore/net/P_UnixNetState.h b/iocore/net/P_UnixNetState.h
new file mode 100644
index 00000000..5c1d4437
--- /dev/null
+++ b/iocore/net/P_UnixNetState.h
@@ -0,0 +1,61 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  UnixNetState.h
+
+
+   NetState
+
+   State information for a particular channel of a NetVConnection
+   This information is private to the Net module.   It is only here
+   because of the the C++ compiler needs it to define NetVConnection.
+
+   Shared with Cluster.cc
+
+
+
+ ****************************************************************************/
+#if !defined (_UnixNetState_h_)
+#define _UnixNetState_h_
+
+#include "List.h"
+#include "I_VIO.h"
+
+class Event;
+class UnixNetVConnection;
+
+struct NetState
+{
+  volatile int enabled;
+  VIO vio;
+  Link<UnixNetVConnection> ready_link;
+  SLink<UnixNetVConnection> enable_link;
+  int in_enabled_list;
+  int triggered;
+
+  NetState() : enabled(0), vio(VIO::NONE), in_enabled_list(0), triggered(0) {}
+};
+
+#endif
diff --git a/iocore/net/P_UnixNetVConnection.h b/iocore/net/P_UnixNetVConnection.h
new file mode 100644
index 00000000..867b11d4
--- /dev/null
+++ b/iocore/net/P_UnixNetVConnection.h
@@ -0,0 +1,393 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+
+  This file implements an I/O Processor for network I/O on Unix.
+
+
+ ****************************************************************************/
+
+#ifndef __P_UNIXNETVCONNECTION_H__
+#define __P_UNIXNETVCONNECTION_H__
+
+#include "ink_sock.h"
+#include "I_NetVConnection.h"
+#include "P_UnixNetState.h"
+#include "P_Connection.h"
+
+class UnixNetVConnection;
+class NetHandler;
+struct PollDescriptor;
+
+TS_INLINE void
+NetVCOptions::reset()
+{
+  ip_proto = USE_TCP;
+  ip_family = AF_INET;
+  local_ip.invalidate();
+  local_port = 0;
+  addr_binding = ANY_ADDR;
+  f_blocking = false;
+  f_blocking_connect = false;
+  socks_support = NORMAL_SOCKS;
+  socks_version = SOCKS_DEFAULT_VERSION;
+  socket_recv_bufsize = 
+#if defined(RECV_BUF_SIZE)
+    RECV_BUF_SIZE;
+#else
+    0;
+#endif
+  socket_send_bufsize = 0;
+  sockopt_flags = 0;
+  packet_mark = 0;
+  packet_tos = 0;
+
+  etype = ET_NET;
+}
+
+TS_INLINE void
+NetVCOptions::set_sock_param(int _recv_bufsize, int _send_bufsize, unsigned long _opt_flags,
+                             unsigned long _packet_mark, unsigned long _packet_tos)
+{
+  socket_recv_bufsize = _recv_bufsize;
+  socket_send_bufsize = _send_bufsize;
+  sockopt_flags = _opt_flags;
+  packet_mark = _packet_mark;
+  packet_tos = _packet_tos;
+}
+
+struct OOB_callback:public Continuation
+{
+  char *data;
+  int length;
+  Event *trigger;
+  UnixNetVConnection *server_vc;
+  Continuation *server_cont;
+  int retry_OOB_send(int, Event *);
+
+    OOB_callback(ProxyMutex *m, NetVConnection *vc, Continuation *cont,
+                 char *buf, int len):Continuation(m), data(buf), length(len), trigger(0)
+  {
+    server_vc = (UnixNetVConnection *) vc;
+    server_cont = cont;
+    SET_HANDLER(&OOB_callback::retry_OOB_send);
+  }
+};
+
+class UnixNetVConnection:public NetVConnection
+{
+public:
+
+  virtual VIO *do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf);
+  virtual VIO *do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner = false);
+
+  virtual bool get_data(int id, void *data);
+
+  virtual Action *send_OOB(Continuation *cont, char *buf, int len);
+  virtual void cancel_OOB();
+
+  virtual void setSSLHandshakeWantsRead(bool /* flag */) { return; }
+  virtual bool getSSLHandshakeWantsRead() { return false; }
+  virtual void setSSLHandshakeWantsWrite(bool /* flag */) { return; }
+
+  virtual bool getSSLHandshakeWantsWrite() { return false; }
+
+  virtual void do_io_close(int lerrno = -1);
+  virtual void do_io_shutdown(ShutdownHowTo_t howto);
+
+  ////////////////////////////////////////////////////////////
+  // Set the timeouts associated with this connection.      //
+  // active_timeout is for the total elasped time of        //
+  // the connection.                                        //
+  // inactivity_timeout is the elapsed time from the time   //
+  // a read or a write was scheduled during which the       //
+  // connection  was unable to sink/provide data.           //
+  // calling these functions repeatedly resets the timeout. //
+  // These functions are NOT THREAD-SAFE, and may only be   //
+  // called when handing an  event from this NetVConnection,//
+  // or the NetVConnection creation callback.               //
+  ////////////////////////////////////////////////////////////
+  virtual void set_active_timeout(ink_hrtime timeout_in);
+  virtual void set_inactivity_timeout(ink_hrtime timeout_in);
+  virtual void cancel_active_timeout();
+  virtual void cancel_inactivity_timeout();
+
+  // The public interface is VIO::reenable()
+  virtual void reenable(VIO *vio);
+  virtual void reenable_re(VIO *vio);
+
+  virtual SOCKET get_socket();
+
+  virtual ~ UnixNetVConnection();
+
+  /////////////////////////////////////////////////////////////////
+  // instances of UnixNetVConnection should be allocated         //
+  // only from the free list using UnixNetVConnection::alloc().  //
+  // The constructor is public just to avoid compile errors.      //
+  /////////////////////////////////////////////////////////////////
+  UnixNetVConnection();
+
+private:
+  UnixNetVConnection(const NetVConnection &);
+  UnixNetVConnection & operator =(const NetVConnection &);
+
+public:
+
+  /////////////////////////
+  // UNIX implementation //
+  /////////////////////////
+  void set_enabled(VIO *vio);
+
+  void get_local_sa();
+
+  // these are not part of the pure virtual interface.  They were
+  // added to reduce the amount of duplicate code in classes inherited
+  // from NetVConnection (SSL).
+  virtual int sslStartHandShake(int event, int &err) {
+    (void) event;
+    (void) err;
+    return EVENT_ERROR;
+  }
+  virtual bool getSSLHandShakeComplete() {
+    return (true);
+  }
+  virtual bool getSSLClientConnection()
+  {
+    return (false);
+  }
+  virtual void setSSLClientConnection(bool state)
+  {
+    (void) state;
+  }
+  virtual void net_read_io(NetHandler *nh, EThread *lthread);
+  virtual int64_t load_buffer_and_write(int64_t towrite, int64_t &wattempted, int64_t &total_wrote, MIOBufferAccessor & buf, int &needs);
+  void readDisable(NetHandler *nh);
+  void readSignalError(NetHandler *nh, int err);
+  int readSignalDone(int event, NetHandler *nh);
+  int readSignalAndUpdate(int event);
+  void readReschedule(NetHandler *nh);
+  void writeReschedule(NetHandler *nh);
+  void netActivity(EThread *lthread);
+
+  Action action_;
+  volatile int closed;
+  NetState read;
+  NetState write;
+
+  LINK(UnixNetVConnection, cop_link);
+  LINKM(UnixNetVConnection, read, ready_link)
+  SLINKM(UnixNetVConnection, read, enable_link)
+  LINKM(UnixNetVConnection, write, ready_link)
+  SLINKM(UnixNetVConnection, write, enable_link)
+
+  ink_hrtime inactivity_timeout_in;
+  ink_hrtime active_timeout_in;
+#ifdef INACTIVITY_TIMEOUT
+  Event *inactivity_timeout;
+#else
+  ink_hrtime next_inactivity_timeout_at;
+#endif
+  Event *active_timeout;
+  EventIO ep;
+  NetHandler *nh;
+  unsigned int id;
+  // amc - what is this for? Why not use remote_addr or con.addr?
+  IpEndpoint server_addr; /// Server address and port.
+
+  union
+  {
+    unsigned int flags;
+#define NET_VC_SHUTDOWN_READ  1
+#define NET_VC_SHUTDOWN_WRITE 2
+    struct
+    {
+      unsigned int got_local_addr:1;
+      unsigned int shutdown:2;
+    } f;
+  };
+
+  Connection con;
+  int recursion;
+  ink_hrtime submit_time;
+  OOB_callback *oob_ptr;
+  bool from_accept_thread;
+
+  int startEvent(int event, Event *e);
+  int acceptEvent(int event, Event *e);
+  int mainEvent(int event, Event *e);
+  virtual int connectUp(EThread *t, int fd);
+  virtual void free(EThread *t);
+
+  virtual ink_hrtime get_inactivity_timeout();
+  virtual ink_hrtime get_active_timeout();
+
+  virtual void set_local_addr();
+  virtual void set_remote_addr();
+  virtual int set_tcp_init_cwnd(int init_cwnd);
+  virtual void apply_options();
+};
+
+extern ClassAllocator<UnixNetVConnection> netVCAllocator;
+
+typedef int (UnixNetVConnection::*NetVConnHandler) (int, void *);
+
+
+TS_INLINE void
+UnixNetVConnection::set_remote_addr()
+{
+  ats_ip_copy(&remote_addr, &con.addr);
+}
+
+TS_INLINE void
+UnixNetVConnection::set_local_addr()
+{
+  int local_sa_size = sizeof(local_addr);
+  safe_getsockname(con.fd, &local_addr.sa, &local_sa_size);
+}
+
+TS_INLINE ink_hrtime
+UnixNetVConnection::get_active_timeout()
+{
+  return active_timeout_in;
+}
+
+TS_INLINE ink_hrtime
+UnixNetVConnection::get_inactivity_timeout()
+{
+  return inactivity_timeout_in;
+}
+
+TS_INLINE void
+UnixNetVConnection::set_inactivity_timeout(ink_hrtime timeout)
+{
+  Debug("socket", "Set inactive timeout=%" PRId64 ", for NetVC=%p", timeout, this);
+  inactivity_timeout_in = timeout;
+#ifndef INACTIVITY_TIMEOUT
+  next_inactivity_timeout_at = ink_get_hrtime() + timeout;
+#else
+  if (inactivity_timeout)
+    inactivity_timeout->cancel_action(this);
+  if (inactivity_timeout_in) {
+    if (read.enabled) {
+      ink_assert(read.vio.mutex->thread_holding == this_ethread() && thread);
+      if (read.vio.mutex->thread_holding == thread)
+        inactivity_timeout = thread->schedule_in_local(this, inactivity_timeout_in);
+      else
+        inactivity_timeout = thread->schedule_in(this, inactivity_timeout_in);
+    } else if (write.enabled) {
+      ink_assert(write.vio.mutex->thread_holding == this_ethread() && thread);
+      if (write.vio.mutex->thread_holding == thread)
+        inactivity_timeout = thread->schedule_in_local(this, inactivity_timeout_in);
+      else
+        inactivity_timeout = thread->schedule_in(this, inactivity_timeout_in);
+    } else
+      inactivity_timeout = 0;
+  } else
+    inactivity_timeout = 0;
+#endif
+}
+
+TS_INLINE void
+UnixNetVConnection::set_active_timeout(ink_hrtime timeout)
+{
+  Debug("socket", "Set active timeout=%" PRId64 ", NetVC=%p", timeout, this);
+  active_timeout_in = timeout;
+  if (active_timeout)
+    active_timeout->cancel_action(this);
+  if (active_timeout_in) {
+    if (read.enabled) {
+      ink_assert(read.vio.mutex->thread_holding == this_ethread() && thread);
+      if (read.vio.mutex->thread_holding == thread)
+        active_timeout = thread->schedule_in_local(this, active_timeout_in);
+      else
+        active_timeout = thread->schedule_in(this, active_timeout_in);
+    } else if (write.enabled) {
+      ink_assert(write.vio.mutex->thread_holding == this_ethread() && thread);
+      if (write.vio.mutex->thread_holding == thread)
+        active_timeout = thread->schedule_in_local(this, active_timeout_in);
+      else
+        active_timeout = thread->schedule_in(this, active_timeout_in);
+    } else
+      active_timeout = 0;
+  } else
+    active_timeout = 0;
+}
+
+TS_INLINE void
+UnixNetVConnection::cancel_inactivity_timeout()
+{
+  inactivity_timeout_in = 0;
+#ifdef INACTIVITY_TIMEOUT
+  if (inactivity_timeout) {
+    Debug("socket", "Cancel inactive timeout for NetVC=%p", this);
+    inactivity_timeout->cancel_action(this);
+    inactivity_timeout = NULL;
+  }
+#else
+  Debug("socket", "Cancel inactive timeout for NetVC=%p", this);
+  next_inactivity_timeout_at = 0;
+#endif
+}
+
+TS_INLINE void
+UnixNetVConnection::cancel_active_timeout()
+{
+  if (active_timeout) {
+    Debug("socket", "Cancel active timeout for NetVC=%p", this);
+    active_timeout->cancel_action(this);
+    active_timeout = NULL;
+    active_timeout_in = 0;
+  }
+}
+
+TS_INLINE int
+UnixNetVConnection::set_tcp_init_cwnd(int init_cwnd)
+{
+#ifdef TCP_INIT_CWND
+  int rv;
+  uint32_t val = init_cwnd;
+  rv = setsockopt(con.fd, IPPROTO_TCP, TCP_INIT_CWND, &val, sizeof(val));
+  Debug("socket", "Setting TCP initial congestion window (%d) -> %d", init_cwnd, rv);
+  return rv;
+#else
+  Debug("socket", "Setting TCP initial congestion window %d -> unsupported", init_cwnd);
+  return -1;
+#endif
+}
+
+TS_INLINE UnixNetVConnection::~UnixNetVConnection() { }
+
+TS_INLINE SOCKET
+UnixNetVConnection::get_socket() {
+  return con.fd;
+}
+
+// declarations for local use (within the net module)
+
+void close_UnixNetVConnection(UnixNetVConnection * vc, EThread * t);
+void write_to_net(NetHandler * nh, UnixNetVConnection * vc, EThread * thread);
+void write_to_net_io(NetHandler * nh, UnixNetVConnection * vc, EThread * thread);
+
+#endif
diff --git a/iocore/net/P_UnixPollDescriptor.h b/iocore/net/P_UnixPollDescriptor.h
new file mode 100644
index 00000000..af3d9e7a
--- /dev/null
+++ b/iocore/net/P_UnixPollDescriptor.h
@@ -0,0 +1,142 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  UnixPollDescriptor.h
+
+
+*****************************************************************************/
+#ifndef __P_UNIXPOLLDESCRIPTOR_H__
+#define __P_UNIXPOLLDESCRIPTOR_H__
+
+#include "libts.h"
+
+#if TS_USE_KQUEUE
+#include <sys/event.h>
+#define INK_EVP_IN    0x001
+#define INK_EVP_PRI   0x002
+#define INK_EVP_OUT   0x004
+#define INK_EVP_ERR   0x010
+#define INK_EVP_HUP   0x020
+#endif
+
+#define POLL_DESCRIPTOR_SIZE 32768
+
+typedef struct pollfd Pollfd;
+
+struct PollDescriptor
+{
+  int result;                   // result of poll
+#if TS_USE_EPOLL
+  int epoll_fd;
+  int nfds;                     // actual number
+  Pollfd pfd[POLL_DESCRIPTOR_SIZE];
+  struct epoll_event ePoll_Triggered_Events[POLL_DESCRIPTOR_SIZE];
+#endif
+#if TS_USE_KQUEUE
+  int kqueue_fd;
+#endif
+#if TS_USE_PORT
+  int port_fd;
+#endif
+
+#if TS_USE_EPOLL
+#define get_ev_port(a) ((a)->epoll_fd)
+#define get_ev_events(a,x) ((a)->ePoll_Triggered_Events[(x)].events)
+#define get_ev_data(a,x) ((a)->ePoll_Triggered_Events[(x)].data.ptr)
+#define ev_next_event(a,x)
+#endif
+
+#if TS_USE_KQUEUE
+  struct kevent kq_Triggered_Events[POLL_DESCRIPTOR_SIZE];
+  /* we define these here as numbers, because for kqueue mapping them to a combination of
+ * filters / flags is hard to do. */
+#define get_ev_port(a) ((a)->kqueue_fd)
+#define get_ev_events(a,x) ((a)->kq_event_convert((a)->kq_Triggered_Events[(x)].filter, (a)->kq_Triggered_Events[(x)].flags))
+#define get_ev_data(a,x) ((a)->kq_Triggered_Events[(x)].udata)
+  int kq_event_convert(int16_t event, uint16_t flags)
+  {
+    int r = 0;
+
+    if (event == EVFILT_READ) {
+      r |= INK_EVP_IN;
+    }
+    else if (event == EVFILT_WRITE) {
+      r |= INK_EVP_OUT;
+    }
+
+    if (flags & EV_EOF) {
+      r |= INK_EVP_HUP;
+    }
+    return r;
+  }
+#define ev_next_event(a,x)
+#endif
+
+#if TS_USE_PORT
+  port_event_t Port_Triggered_Events[POLL_DESCRIPTOR_SIZE];
+#define get_ev_port(a) ((a)->port_fd)
+#define get_ev_events(a,x) ((a)->Port_Triggered_Events[(x)].portev_events)
+#define get_ev_data(a,x) ((a)->Port_Triggered_Events[(x)].portev_user)
+#define get_ev_odata(a,x) ((a)->Port_Triggered_Events[(x)].portev_object)
+#define ev_next_event(a,x)
+#endif
+
+  Pollfd *alloc()
+  {
+#if TS_USE_EPOLL
+    // XXX : We need restrict max size based on definition.
+    if (nfds >= POLL_DESCRIPTOR_SIZE) {
+      nfds = 0;
+    }
+    return &pfd[nfds++];
+#else
+    return 0;
+#endif
+  }
+  PollDescriptor *init()
+  {
+    result = 0;
+#if TS_USE_EPOLL
+    nfds = 0;
+    epoll_fd = epoll_create(POLL_DESCRIPTOR_SIZE);
+    memset(ePoll_Triggered_Events, 0, sizeof(ePoll_Triggered_Events));
+    memset(pfd, 0, sizeof(pfd));
+#endif
+#if TS_USE_KQUEUE
+    kqueue_fd = kqueue();
+    memset(kq_Triggered_Events, 0, sizeof(kq_Triggered_Events));
+#endif
+#if TS_USE_PORT
+    port_fd = port_create();
+    memset(Port_Triggered_Events, 0, sizeof(Port_Triggered_Events));
+#endif
+    return this;
+  }
+  PollDescriptor() {
+    init();
+  }
+};
+
+#endif
diff --git a/iocore/net/P_UnixUDPConnection.h b/iocore/net/P_UnixUDPConnection.h
new file mode 100644
index 00000000..1ea55983
--- /dev/null
+++ b/iocore/net/P_UnixUDPConnection.h
@@ -0,0 +1,120 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  P_UnixUDPConnection.h
+  Unix UDPConnection implementation
+
+
+ ****************************************************************************/
+#ifndef __UNIXUDPCONNECTION_H_
+#define __UNIXUDPCONNECTION_H_
+
+#include "P_UDPConnection.h"
+#include "P_UDPPacket.h"
+
+class UnixUDPConnection:public UDPConnectionInternal
+{
+public:
+  void init(int the_fd);
+  void setEthread(EThread * e);
+  void errorAndDie(int e);
+  int callbackHandler(int event, void *data);
+
+  LINK(UnixUDPConnection, polling_link);
+  LINK(UnixUDPConnection, callback_link);
+  SLINK(UnixUDPConnection, newconn_alink);
+
+  InkAtomicList inQueue;
+  int onCallbackQueue;
+  Action *callbackAction;
+  EThread *ethread;
+  EventIO ep;
+
+  UnixUDPConnection(int the_fd);
+  virtual ~ UnixUDPConnection();
+private:
+  int m_errno;
+  virtual void UDPConnection_is_abstract() {};
+};
+
+TS_INLINE
+UnixUDPConnection::UnixUDPConnection(int the_fd)
+  : onCallbackQueue(0)
+  , callbackAction(NULL)
+  , ethread(NULL)
+  , m_errno(0)
+{
+  fd = the_fd;
+  UDPPacketInternal p;
+  ink_atomiclist_init(&inQueue, "Incoming UDP Packet queue", (char *) &p.alink.next - (char *) &p);
+  SET_HANDLER(&UnixUDPConnection::callbackHandler);
+}
+
+TS_INLINE void
+UnixUDPConnection::init(int the_fd)
+{
+  fd = the_fd;
+  onCallbackQueue = 0;
+  callbackAction = NULL;
+  ethread = NULL;
+  m_errno = 0;
+
+  UDPPacketInternal p;
+  ink_atomiclist_init(&inQueue, "Incoming UDP Packet queue", (char *) &p.alink.next - (char *) &p);
+  SET_HANDLER(&UnixUDPConnection::callbackHandler);
+}
+
+TS_INLINE void
+UnixUDPConnection::setEthread(EThread * e)
+{
+  ethread = e;
+}
+
+TS_INLINE void
+UnixUDPConnection::errorAndDie(int e)
+{
+  m_errno = e;
+}
+
+TS_INLINE Action *
+UDPConnection::recv(Continuation * c)
+{
+  UnixUDPConnection *p = (UnixUDPConnection *) this;
+  // register callback interest.
+  p->continuation = c;
+  ink_assert(c != NULL);
+  mutex = c->mutex;
+  p->recvActive = 1;
+  return ACTION_RESULT_NONE;
+}
+
+
+TS_INLINE UDPConnection *
+new_UDPConnection(int fd)
+{
+  return (fd >= 0) ? new UnixUDPConnection(fd) : 0;
+}
+
+#endif //__UNIXUDPCONNECTION_H_
diff --git a/iocore/net/SSLCertLookup.cc b/iocore/net/SSLCertLookup.cc
new file mode 100644
index 00000000..bde08624
--- /dev/null
+++ b/iocore/net/SSLCertLookup.cc
@@ -0,0 +1,347 @@
+/** @file
+
+  SSL Context management
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+
+#include "P_SSLCertLookup.h"
+#include "P_SSLUtils.h"
+#include "P_SSLConfig.h"
+#include "I_EventSystem.h"
+#include "I_Layout.h"
+#include "Regex.h"
+#include "Trie.h"
+#include "ts/TestBox.h"
+
+struct SSLAddressLookupKey
+{
+  explicit
+  SSLAddressLookupKey(const IpEndpoint& ip) : sep(0)
+  {
+    static const char hextab[16] = {
+      '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
+    };
+
+    int nbytes;
+    uint16_t port = ntohs(ip.port());
+
+    // For IP addresses, the cache key is the hex address with the port concatenated. This makes the lookup
+    // insensitive to address formatting and also allow the longest match semantic to produce different matches
+    // if there is a certificate on the port.
+    nbytes = ats_ip_to_hex(&ip.sa, key, sizeof(key));
+    if (port) {
+      sep = nbytes;
+      key[nbytes++] = '.';
+      key[nbytes++] = hextab[ (port >> 12) & 0x000F ];
+      key[nbytes++] = hextab[ (port >>  8) & 0x000F ];
+      key[nbytes++] = hextab[ (port >>  4) & 0x000F ];
+      key[nbytes++] = hextab[ (port      ) & 0x000F ];
+    }
+    key[nbytes++] = 0;
+  }
+
+  const char * get() const { return key; }
+  void split() { key[sep] = '\0'; }
+  void unsplit() { key[sep] = '.'; }
+
+private:
+  char key[(TS_IP6_SIZE * 2) /* hex addr */ + 1 /* dot */ + 4 /* port */ + 1 /* NULL */];
+  unsigned char sep; // offset of address/port separator
+};
+
+struct SSLContextStorage
+{
+  SSLContextStorage();
+  ~SSLContextStorage();
+
+  bool insert(SSL_CTX * ctx, const char * name);
+  SSL_CTX * lookup(const char * name) const;
+  unsigned count() const { return this->references.count(); }
+  SSL_CTX * get(unsigned i) const { return this->references[i]; }
+
+private:
+  struct SSLEntry
+  {
+    explicit SSLEntry(SSL_CTX * c) : ctx(c) {}
+
+    void Print() const { Debug("ssl", "SSLEntry=%p SSL_CTX=%p", this, ctx); }
+
+    SSL_CTX * ctx;
+    LINK(SSLEntry, link);
+  };
+
+  Trie<SSLEntry>  wildcards;
+  InkHashTable *  hostnames;
+  Vec<SSL_CTX *>  references;
+};
+
+SSLCertLookup::SSLCertLookup()
+  : ssl_storage(new SSLContextStorage()), ssl_default(NULL)
+{
+}
+
+SSLCertLookup::~SSLCertLookup()
+{
+  delete this->ssl_storage;
+}
+
+SSL_CTX *
+SSLCertLookup::findInfoInHash(const char * address) const
+{
+  return this->ssl_storage->lookup(address);
+}
+
+SSL_CTX *
+SSLCertLookup::findInfoInHash(const IpEndpoint& address) const
+{
+  SSL_CTX * ctx;
+  SSLAddressLookupKey key(address);
+
+  // First try the full address.
+  if ((ctx = this->ssl_storage->lookup(key.get()))) {
+    return ctx;
+  }
+
+  // If that failed, try the address without the port.
+  if (address.port()) {
+    key.split();
+    return this->ssl_storage->lookup(key.get());
+  }
+
+  return NULL;
+}
+
+bool
+SSLCertLookup::insert(SSL_CTX * ctx, const char * name)
+{
+  return this->ssl_storage->insert(ctx, name);
+}
+
+bool
+SSLCertLookup::insert(SSL_CTX * ctx, const IpEndpoint& address)
+{
+  SSLAddressLookupKey key(address);
+  return this->ssl_storage->insert(ctx, key.get());
+}
+
+unsigned
+SSLCertLookup::count() const
+{
+  return ssl_storage->count();
+}
+
+SSL_CTX *
+SSLCertLookup::get(unsigned i) const
+{
+  return ssl_storage->get(i);
+}
+
+struct ats_wildcard_matcher
+{
+  ats_wildcard_matcher() {
+    if (regex.compile("^\\*\\.[^\\*.]+") != 0) {
+      Fatal("failed to compile TLS wildcard matching regex");
+    }
+  }
+
+  ~ats_wildcard_matcher() {
+  }
+
+  bool match(const char * hostname) const {
+    return regex.match(hostname) != -1;
+  }
+
+private:
+  DFA regex;
+};
+
+static char *
+reverse_dns_name(const char * hostname, char (&reversed)[TS_MAX_HOST_NAME_LEN+1])
+{
+  char * ptr = reversed + sizeof(reversed);
+  const char * part = hostname;
+
+  *(--ptr) = '\0'; // NUL-terminate
+
+  while (*part) {
+    ssize_t len = strcspn(part, ".");
+    ssize_t remain = ptr - reversed;
+
+    if (remain < (len + 1)) {
+      return NULL;
+    }
+
+    ptr -= len;
+    memcpy(ptr, part, len);
+
+    // Skip to the next domain component. This will take us to either a '.' or a NUL.
+    // If it's a '.' we need to skip over it.
+    part += len;
+    if (*part == '.') {
+      ++part;
+      *(--ptr) = '.';
+    }
+  }
+
+  return ptr;
+}
+
+SSLContextStorage::SSLContextStorage()
+  :wildcards(), hostnames(ink_hash_table_create(InkHashTableKeyType_String))
+{
+}
+
+SSLContextStorage::~SSLContextStorage()
+{
+  for (unsigned i = 0; i < this->references.count(); ++i) {
+    SSLReleaseContext(this->references[i]);
+  }
+
+  ink_hash_table_destroy(this->hostnames);
+}
+
+bool
+SSLContextStorage::insert(SSL_CTX * ctx, const char * name)
+{
+  ats_wildcard_matcher wildcard;
+  bool inserted = false;
+
+  if (wildcard.match(name)) {
+    // We turn wildcards into the reverse DNS form, then insert them into the trie
+    // so that we can do a longest match lookup.
+    char namebuf[TS_MAX_HOST_NAME_LEN + 1];
+    char * reversed;
+    xptr<SSLEntry> entry;
+
+    reversed = reverse_dns_name(name + 1, namebuf);
+    if (!reversed) {
+      Error("wildcard name '%s' is too long", name);
+      return false;
+    }
+
+    entry = new SSLEntry(ctx);
+    inserted = this->wildcards.Insert(reversed, entry, 0 /* rank */, -1 /* keylen */);
+    if (!inserted) {
+      SSLEntry * found;
+
+      // We fail to insert, so the longest wildcard match search should return the full match value.
+      found = this->wildcards.Search(reversed);
+      if (found != NULL && found->ctx != ctx) {
+        Warning("previously indexed wildcard certificate for '%s' as '%s', cannot index it with SSL_CTX %p now",
+            name, reversed, ctx);
+      }
+
+      goto done;
+    }
+
+    Debug("ssl", "indexed wildcard certificate for '%s' as '%s' with SSL_CTX %p", name, reversed, ctx);
+    entry.release();
+  } else {
+    InkHashTableValue value;
+
+    if (ink_hash_table_lookup(this->hostnames, name, &value) && (void *)ctx != value) {
+      Warning("previously indexed '%s' with SSL_CTX %p, cannot index it with SSL_CTX %p now", name, value, ctx);
+      goto done;
+    }
+
+    inserted = true;
+    ink_hash_table_insert(this->hostnames, name, (void *)ctx);
+    Debug("ssl", "indexed '%s' with SSL_CTX %p", name, ctx);
+  }
+
+done:
+  // Keep a unique reference to the SSL_CTX, so that we can free it later. Since we index by name, multiple
+  // certificates can be indexed for the same name. If this happens, we will overwrite the previous pointer
+  // and leak a context. So if we insert a certificate, keep an ownership reference to it.
+  if (inserted) {
+    if (this->references.in(ctx) == NULL) {
+      this->references.push_back(ctx);
+    }
+  }
+
+  return inserted;
+}
+
+SSL_CTX *
+SSLContextStorage::lookup(const char * name) const
+{
+  InkHashTableValue value;
+
+  if (ink_hash_table_lookup(const_cast<InkHashTable *>(this->hostnames), name, &value)) {
+    return (SSL_CTX *)value;
+  }
+
+  if (!this->wildcards.Empty()) {
+    char namebuf[TS_MAX_HOST_NAME_LEN + 1];
+    char * reversed;
+    SSLEntry * entry;
+
+    reversed = reverse_dns_name(name, namebuf);
+    if (!reversed) {
+      Error("failed to reverse hostname name '%s' is too long", name);
+      return NULL;
+    }
+
+    Debug("ssl", "attempting wildcard match for %s", reversed);
+    entry = this->wildcards.Search(reversed);
+    if (entry) {
+      return entry->ctx;
+    }
+  }
+
+  return NULL;
+}
+
+#if TS_HAS_TESTS
+
+REGRESSION_TEST(SSLWildcardMatch)(RegressionTest * t, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  TestBox box(t, pstatus);
+  ats_wildcard_matcher wildcard;
+
+  box = REGRESSION_TEST_PASSED;
+
+  box.check(wildcard.match("foo.com") == false, "foo.com is not a wildcard");
+  box.check(wildcard.match("*.foo.com") == true, "*.foo.com not a wildcard");
+  box.check(wildcard.match("bar*.foo.com") == false, "bar*.foo.com not a wildcard");
+  box.check(wildcard.match("*") == false, "* is not a wildcard");
+  box.check(wildcard.match("") == false, "'' is not a wildcard");
+}
+
+REGRESSION_TEST(SSLReverseHostname)(RegressionTest * t, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  TestBox box(t, pstatus);
+
+  char reversed[TS_MAX_HOST_NAME_LEN + 1];
+
+#define _R(name) reverse_dns_name(name, reversed)
+
+  box = REGRESSION_TEST_PASSED;
+
+  box.check(strcmp(_R("foo.com"), "com.foo") == 0, "reversed foo.com");
+  box.check(strcmp(_R("bar.foo.com"), "com.foo.bar") == 0, "reversed bar.foo.com");
+  box.check(strcmp(_R("foo"), "foo") == 0, "reversed foo");
+
+#undef _R
+}
+
+#endif // TS_HAS_TESTS
diff --git a/iocore/net/SSLConfig.cc b/iocore/net/SSLConfig.cc
new file mode 100644
index 00000000..d795fad7
--- /dev/null
+++ b/iocore/net/SSLConfig.cc
@@ -0,0 +1,327 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*************************** -*- Mod: C++ -*- ******************************
+  SSLConfig.cc
+   Created On      : 07/20/2000
+
+   Description:
+   SSL Configurations
+ ****************************************************************************/
+
+#include "libts.h"
+#include "I_Layout.h"
+
+#include <string.h>
+#include "P_Net.h"
+#include "P_SSLConfig.h"
+#include "P_SSLUtils.h"
+#include "P_SSLCertLookup.h"
+#include <records/I_RecHttp.h>
+
+int SSLConfig::configid = 0;
+int SSLCertificateConfig::configid = 0;
+int SSLConfigParams::ssl_maxrecord = 0;
+bool SSLConfigParams::ssl_allow_client_renegotiation = false;
+init_ssl_ctx_func SSLConfigParams::init_ssl_ctx_cb = NULL;
+
+static ConfigUpdateHandler<SSLCertificateConfig> * sslCertUpdate;
+
+SSLConfigParams::SSLConfigParams()
+{
+  serverCertPathOnly =
+    serverCertChainFilename =
+    configFilePath =
+    serverCACertFilename =
+    serverCACertPath =
+    clientCertPath =
+    clientKeyPath =
+    clientCACertFilename =
+    clientCACertPath =
+    cipherSuite =
+    serverKeyPathOnly = NULL;
+
+  clientCertLevel = client_verify_depth = verify_depth = clientVerify = 0;
+
+  ssl_ctx_options = 0;
+  ssl_session_cache = SSL_SESSION_CACHE_MODE_SERVER;
+  ssl_session_cache_size = 1024*20;
+  ssl_session_cache_timeout = 0;
+}
+
+SSLConfigParams::~SSLConfigParams()
+{
+  cleanup();
+}
+
+void
+SSLConfigParams::cleanup()
+{
+  ats_free_null(serverCertChainFilename);
+  ats_free_null(serverCACertFilename);
+  ats_free_null(serverCACertPath);
+  ats_free_null(clientCertPath);
+  ats_free_null(clientKeyPath);
+  ats_free_null(clientCACertFilename);
+  ats_free_null(clientCACertPath);
+  ats_free_null(configFilePath);
+  ats_free_null(serverCertPathOnly);
+  ats_free_null(serverKeyPathOnly);
+  ats_free_null(cipherSuite);
+
+  clientCertLevel = client_verify_depth = verify_depth = clientVerify = 0;
+}
+
+/**  set_paths_helper
+
+ If path is *not* absolute, consider it relative to PREFIX
+ if it's empty, just take SYSCONFDIR, otherwise we can take it as-is
+ if final_path is NULL, it will not be updated.
+
+ XXX: Add handling for Windows?
+ */
+static void
+set_paths_helper(const char *path, const char *filename, char **final_path, char **final_filename)
+{
+  if (final_path) {
+    if (path && path[0] != '/') {
+      *final_path = Layout::get()->relative_to(Layout::get()->prefix, path);
+    } else if (!path || path[0] == '\0'){
+      *final_path = ats_strdup(Layout::get()->sysconfdir);
+    } else {
+      *final_path = ats_strdup(path);
+    }
+  }
+
+  if (final_filename) {
+    *final_filename = filename ? Layout::get()->relative_to(path, filename) : NULL;
+  }
+
+}
+
+void
+SSLConfigParams::initialize()
+{
+  char *serverCertRelativePath = NULL;
+  char *ssl_server_private_key_path = NULL;
+  char *CACertRelativePath = NULL;
+  char *ssl_client_cert_filename = NULL;
+  char *ssl_client_cert_path = NULL;
+  char *ssl_client_private_key_filename = NULL;
+  char *ssl_client_private_key_path = NULL;
+  char *clientCACertRelativePath = NULL;
+  char *multicert_config_file = NULL;
+  char *ssl_server_ca_cert_filename = NULL;
+  char *ssl_client_ca_cert_filename = NULL;
+
+  cleanup();
+
+  //+++++++++++++++++++++++++ Server part +++++++++++++++++++++++++++++++++
+  verify_depth = 7;
+
+  REC_ReadConfigInt32(clientCertLevel, "proxy.config.ssl.client.certification_level");
+  REC_ReadConfigStringAlloc(cipherSuite, "proxy.config.ssl.server.cipher_suite");
+
+  int options;
+  REC_ReadConfigInteger(options, "proxy.config.ssl.SSLv2");
+  if (!options)
+    ssl_ctx_options |= SSL_OP_NO_SSLv2;
+  REC_ReadConfigInteger(options, "proxy.config.ssl.SSLv3");
+  if (!options)
+    ssl_ctx_options |= SSL_OP_NO_SSLv3;
+  REC_ReadConfigInteger(options, "proxy.config.ssl.TLSv1");
+  if (!options)
+    ssl_ctx_options |= SSL_OP_NO_TLSv1;
+
+  // These are not available in all versions of OpenSSL (e.g. CentOS6). Also see http://s.apache.org/TS-2355.
+#ifdef SSL_OP_NO_TLSv1_1
+  REC_ReadConfigInteger(options, "proxy.config.ssl.TLSv1_1");
+  if (!options)
+    ssl_ctx_options |= SSL_OP_NO_TLSv1_1;
+#endif
+#ifdef SSL_OP_NO_TLSv1_2
+  REC_ReadConfigInteger(options, "proxy.config.ssl.TLSv1_2");
+  if (!options)
+    ssl_ctx_options |= SSL_OP_NO_TLSv1_2;
+#endif
+
+#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
+  REC_ReadConfigInteger(options, "proxy.config.ssl.server.honor_cipher_order");
+  if (options)
+    ssl_ctx_options |= SSL_OP_CIPHER_SERVER_PREFERENCE;
+#endif
+
+  REC_ReadConfigInteger(options, "proxy.config.ssl.compression");
+  if (!options) {
+#ifdef SSL_OP_NO_COMPRESSION
+    /* OpenSSL >= 1.0 only */
+    ssl_ctx_options |= SSL_OP_NO_COMPRESSION;
+#elif OPENSSL_VERSION_NUMBER >= 0x00908000L
+    sk_SSL_COMP_zero(SSL_COMP_get_compression_methods());
+#endif
+  }
+
+  // Enable ephemeral DH parameters for the case where we use a cipher with DH forward security.
+#ifdef SSL_OP_SINGLE_DH_USE
+  ssl_ctx_options |= SSL_OP_SINGLE_DH_USE;
+#endif
+
+#ifdef SSL_OP_SINGLE_ECDH_USE
+  ssl_ctx_options |= SSL_OP_SINGLE_ECDH_USE;
+#endif
+
+  // Enable all SSL compatibility workarounds.
+  ssl_ctx_options |= SSL_OP_ALL;
+
+  // According to OpenSSL source, applications must enable this if they support the Server Name extension. Since
+  // we do, then we ought to enable this. Httpd also enables this unconditionally.
+#ifdef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
+  ssl_ctx_options |= SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION;
+#endif
+
+  REC_ReadConfigStringAlloc(serverCertChainFilename, "proxy.config.ssl.server.cert_chain.filename");
+  REC_ReadConfigStringAlloc(serverCertRelativePath, "proxy.config.ssl.server.cert.path");
+  set_paths_helper(serverCertRelativePath, NULL, &serverCertPathOnly, NULL);
+  ats_free(serverCertRelativePath);
+
+  REC_ReadConfigStringAlloc(multicert_config_file, "proxy.config.ssl.server.multicert.filename");
+  set_paths_helper(Layout::get()->sysconfdir, multicert_config_file, NULL, &configFilePath);
+  ats_free(multicert_config_file);
+
+  REC_ReadConfigStringAlloc(ssl_server_private_key_path, "proxy.config.ssl.server.private_key.path");
+  set_paths_helper(ssl_server_private_key_path, NULL, &serverKeyPathOnly, NULL);
+  ats_free(ssl_server_private_key_path);
+
+  REC_ReadConfigStringAlloc(ssl_server_ca_cert_filename, "proxy.config.ssl.CA.cert.filename");
+  REC_ReadConfigStringAlloc(CACertRelativePath, "proxy.config.ssl.CA.cert.path");
+  set_paths_helper(CACertRelativePath, ssl_server_ca_cert_filename, &serverCACertPath, &serverCACertFilename);
+  ats_free(ssl_server_ca_cert_filename);
+  ats_free(CACertRelativePath);
+
+  // SSL session cache configurations
+  REC_ReadConfigInteger(ssl_session_cache, "proxy.config.ssl.session_cache");
+  REC_ReadConfigInteger(ssl_session_cache_size, "proxy.config.ssl.session_cache.size");
+  REC_ReadConfigInteger(ssl_session_cache_timeout, "proxy.config.ssl.session_cache.timeout");
+
+  // SSL record size
+  REC_EstablishStaticConfigInt32(ssl_maxrecord, "proxy.config.ssl.max_record_size");
+
+  // ++++++++++++++++++++++++ Client part ++++++++++++++++++++
+  client_verify_depth = 7;
+  REC_ReadConfigInt32(clientVerify, "proxy.config.ssl.client.verify.server");
+
+  ssl_client_cert_filename = NULL;
+  ssl_client_cert_path = NULL;
+  REC_ReadConfigStringAlloc(ssl_client_cert_filename, "proxy.config.ssl.client.cert.filename");
+  REC_ReadConfigStringAlloc(ssl_client_cert_path, "proxy.config.ssl.client.cert.path");
+  set_paths_helper(ssl_client_cert_path, ssl_client_cert_filename, NULL, &clientCertPath);
+  ats_free_null(ssl_client_cert_filename);
+  ats_free_null(ssl_client_cert_path);
+
+  REC_ReadConfigStringAlloc(ssl_client_private_key_filename, "proxy.config.ssl.client.private_key.filename");
+  REC_ReadConfigStringAlloc(ssl_client_private_key_path, "proxy.config.ssl.client.private_key.path");
+  set_paths_helper(ssl_client_private_key_path, ssl_client_private_key_filename, NULL, &clientKeyPath);
+  ats_free_null(ssl_client_private_key_filename);
+  ats_free_null(ssl_client_private_key_path);
+
+  REC_ReadConfigStringAlloc(ssl_client_ca_cert_filename, "proxy.config.ssl.client.CA.cert.filename");
+  REC_ReadConfigStringAlloc(clientCACertRelativePath, "proxy.config.ssl.client.CA.cert.path");
+  set_paths_helper(clientCACertRelativePath, ssl_client_ca_cert_filename, &clientCACertPath, &clientCACertFilename);
+  ats_free(clientCACertRelativePath);
+  ats_free(ssl_client_ca_cert_filename);
+
+  REC_ReadConfigInt32(ssl_allow_client_renegotiation, "proxy.config.ssl.allow_client_renegotiation");
+}
+
+void
+SSLConfig::startup()
+{
+  reconfigure();
+}
+
+void
+SSLConfig::reconfigure()
+{
+  SSLConfigParams *params;
+  params = new SSLConfigParams;
+  params->initialize();         // re-read configuration
+  configid = configProcessor.set(configid, params);
+}
+
+SSLConfigParams *
+SSLConfig::acquire()
+{
+  return ((SSLConfigParams *) configProcessor.get(configid));
+}
+
+void
+SSLConfig::release(SSLConfigParams * params)
+{
+  configProcessor.release(configid, params);
+}
+
+void
+SSLCertificateConfig::startup()
+{
+  sslCertUpdate = new ConfigUpdateHandler<SSLCertificateConfig>();
+  sslCertUpdate->attach("proxy.config.ssl.server.multicert.filename");
+  sslCertUpdate->attach("proxy.config.ssl.server.cert.path");
+  sslCertUpdate->attach("proxy.config.ssl.server.private_key.path");
+  sslCertUpdate->attach("proxy.config.ssl.server.cert_chain.filename");
+
+  reconfigure();
+}
+
+void
+SSLCertificateConfig::reconfigure()
+{
+  SSLConfig::scoped_config params;
+  SSLCertLookup * lookup = new SSLCertLookup();
+
+  // Test SSL certificate loading startup. With large numbers of certificates, reloading can take time, so delay
+  // twice the healthcheck period to simulate a loading a large certificate set.
+  if (is_action_tag_set("test.multicert.delay")) {
+    const int secs = 60;
+    Debug("ssl", "delaying certificate reload by %dsecs", secs);
+    ink_hrtime_sleep(HRTIME_SECONDS(secs));
+  }
+
+  if (SSLParseCertificateConfiguration(params, lookup)) {
+    configid = configProcessor.set(configid, lookup);
+  } else {
+    delete lookup;
+  }
+}
+
+SSLCertLookup *
+SSLCertificateConfig::acquire()
+{
+  return (SSLCertLookup *)configProcessor.get(configid);
+}
+
+void
+SSLCertificateConfig::release(SSLCertLookup * lookup)
+{
+  configProcessor.release(configid, lookup);
+}
+
diff --git a/iocore/net/SSLNetAccept.cc b/iocore/net/SSLNetAccept.cc
new file mode 100644
index 00000000..e8495965
--- /dev/null
+++ b/iocore/net/SSLNetAccept.cc
@@ -0,0 +1,77 @@
+/** @file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "P_Net.h"
+
+typedef int (SSLNetAccept::*SSLNetAcceptHandler) (int, void *);
+
+// Virtual function allows the correct
+// etype to be used in NetAccept functions (ET_SSL
+// or ET_NET).
+EventType
+SSLNetAccept::getEtype() const
+{
+  return SSLNetProcessor::ET_SSL;
+}
+
+NetProcessor *
+SSLNetAccept::getNetProcessor() const
+{
+  return &sslNetProcessor;
+}
+
+void
+SSLNetAccept::init_accept_per_thread()
+{
+  int i, n;
+  if (do_listen(NON_BLOCKING))
+    return;
+  if (accept_fn == net_accept)
+    SET_HANDLER((SSLNetAcceptHandler) & SSLNetAccept::acceptFastEvent);
+  else
+    SET_HANDLER((SSLNetAcceptHandler) & SSLNetAccept::acceptEvent);
+  period = ACCEPT_PERIOD;
+  NetAccept *a = this;
+  n = eventProcessor.n_threads_for_type[SSLNetProcessor::ET_SSL];
+  for (i = 0; i < n; i++) {
+    if (i < n - 1)
+      a = clone();
+    else
+      a = this;
+    EThread *t = eventProcessor.eventthread[SSLNetProcessor::ET_SSL][i];
+
+    PollDescriptor *pd = get_PollDescriptor(t);
+    if (ep.start(pd, this, EVENTIO_READ) < 0)
+      Debug("iocore_net", "error starting EventIO");
+    a->mutex = get_NetHandler(t)->mutex;
+    t->schedule_every(a, period, etype);
+  }
+}
+
+NetAccept *
+SSLNetAccept::clone() const
+{
+  NetAccept *na;
+  na = new SSLNetAccept;
+  *na = *this;
+  return na;
+}
diff --git a/iocore/net/SSLNetProcessor.cc b/iocore/net/SSLNetProcessor.cc
new file mode 100644
index 00000000..eb486728
--- /dev/null
+++ b/iocore/net/SSLNetProcessor.cc
@@ -0,0 +1,119 @@
+/** @file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+
+#include "P_Net.h"
+#include "I_Layout.h"
+#include "I_RecHttp.h"
+#include "P_SSLUtils.h"
+
+//
+// Global Data
+//
+
+SSLNetProcessor   ssl_NetProcessor;
+NetProcessor&     sslNetProcessor = ssl_NetProcessor;
+EventType         SSLNetProcessor::ET_SSL;
+
+void
+SSLNetProcessor::cleanup(void)
+{
+  if (client_ctx) {
+    SSL_CTX_free(client_ctx);
+    client_ctx = NULL;
+  }
+}
+
+int
+SSLNetProcessor::start(int number_of_ssl_threads, size_t stacksize)
+{
+  // This initialization order matters ...
+  SSLInitializeLibrary();
+  SSLConfig::startup();
+
+  if (HttpProxyPort::hasSSL()) {
+    SSLCertificateConfig::startup();
+  }
+
+  // Acquire a SSLConfigParams instance *after* we start SSL up.
+  SSLConfig::scoped_config params;
+
+  // Enable client regardless of config file setttings as remap file
+  // can cause HTTP layer to connect using SSL. But only if SSL
+  // initialization hasn't failed already.
+  client_ctx = SSLInitClientContext(params);
+  if (!client_ctx) {
+    SSLError("Can't initialize the SSL client, HTTPS in remap rules will not function");
+  }
+
+  if (number_of_ssl_threads < 1) {
+    return -1;
+  }
+
+  // Initialize SSL statistics. This depends on an initial set of certificates being loaded above.
+  SSLInitializeStatistics();
+
+  SSLNetProcessor::ET_SSL = eventProcessor.spawn_event_threads(number_of_ssl_threads, "ET_SSL", stacksize);
+  return UnixNetProcessor::start(0, stacksize);
+}
+
+NetAccept *
+SSLNetProcessor::createNetAccept()
+{
+  return (NetAccept *) new SSLNetAccept;
+}
+
+// Virtual function allows etype to be upgraded to ET_SSL for SSLNetProcessor.  Does
+// nothing for NetProcessor
+void
+SSLNetProcessor::upgradeEtype(EventType & etype)
+{
+  if (etype == ET_NET) {
+    etype = ET_SSL;
+  }
+}
+
+NetVConnection *
+SSLNetProcessor::allocate_vc(EThread *t)
+{
+  SSLNetVConnection *vc;
+
+  if (t) {
+    vc = THREAD_ALLOC(sslNetVCAllocator, t);
+  } else {
+    if (likely(vc = sslNetVCAllocator.alloc())) {
+      vc->from_accept_thread = true;
+    }
+  }
+
+  return vc;
+}
+
+SSLNetProcessor::SSLNetProcessor()
+  : client_ctx(NULL)
+{
+}
+
+SSLNetProcessor::~SSLNetProcessor()
+{
+  cleanup();
+}
diff --git a/iocore/net/SSLNetVConnection.cc b/iocore/net/SSLNetVConnection.cc
new file mode 100644
index 00000000..67aabbcc
--- /dev/null
+++ b/iocore/net/SSLNetVConnection.cc
@@ -0,0 +1,762 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "ink_config.h"
+#include "P_Net.h"
+#include "P_SSLNextProtocolSet.h"
+#include "P_SSLUtils.h"
+
+#define SSL_READ_ERROR_NONE	  0
+#define SSL_READ_ERROR		  1
+#define SSL_READ_READY		  2
+#define SSL_READ_COMPLETE	  3
+#define SSL_READ_WOULD_BLOCK      4
+#define SSL_READ_EOS		  5
+#define SSL_HANDSHAKE_WANT_READ   6
+#define SSL_HANDSHAKE_WANT_WRITE  7
+#define SSL_HANDSHAKE_WANT_ACCEPT 8
+#define SSL_HANDSHAKE_WANT_CONNECT 9
+#define SSL_WRITE_WOULD_BLOCK     10
+
+ClassAllocator<SSLNetVConnection> sslNetVCAllocator("sslNetVCAllocator");
+
+//
+// Private
+//
+
+static SSL *
+make_ssl_connection(SSL_CTX * ctx, SSLNetVConnection * netvc)
+{
+  SSL * ssl;
+
+  if (likely(ssl = SSL_new(ctx))) {
+    SSL_set_fd(ssl, netvc->get_socket());
+    SSL_set_app_data(ssl, netvc);
+  }
+
+  return ssl;
+}
+
+static void
+debug_certificate_name(const char * msg, X509_NAME * name)
+{
+  BIO * bio;
+
+  if (name == NULL) {
+    return;
+  }
+
+  bio = BIO_new(BIO_s_mem());
+  if (bio == NULL) {
+    return;
+  }
+
+  if (X509_NAME_print_ex(bio, name, 0 /* indent */, XN_FLAG_ONELINE) > 0) {
+    long len;
+    char * ptr;
+    len = BIO_get_mem_data(bio, &ptr);
+    Debug("ssl", "%s %.*s", msg, (int)len, ptr);
+  }
+
+  BIO_free(bio);
+}
+
+static inline int
+do_SSL_write(SSL * ssl, void *buf, int size)
+{
+  int r = 0;
+  do {
+    // need to check into SSL error handling
+    // to see if this is good enough.
+    r = SSL_write(ssl, (const char *) buf, size);
+    if (r >= 0)
+      return r;
+    else
+      r = -errno;
+  } while (r == -EINTR || r == -ENOBUFS || r == -ENOMEM);
+
+  return r;
+}
+
+
+static int
+ssl_read_from_net(SSLNetVConnection * sslvc, EThread * lthread, int64_t &ret)
+{
+  NetState *s = &sslvc->read;
+  MIOBufferAccessor & buf = s->vio.buffer;
+  IOBufferBlock *b = buf.writer()->first_write_block();
+  int event = SSL_READ_ERROR_NONE;
+  int64_t bytes_read;
+  int64_t block_write_avail;
+  int sslErr = SSL_ERROR_NONE;
+
+  for (bytes_read = 0; (b != 0) && (sslErr == SSL_ERROR_NONE); b = b->next) {
+    block_write_avail = b->write_avail();
+
+    Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] b->write_avail()=%" PRId64, block_write_avail);
+
+    int64_t offset = 0;
+    // while can be replaced with if - need to test what works faster with openssl
+    while (block_write_avail > 0) {
+      int rres = SSL_read(sslvc->ssl, b->end() + offset, (int)block_write_avail);
+
+      Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] rres=%d", rres);
+
+      sslErr = SSL_get_error(sslvc->ssl, rres);
+      switch (sslErr) {
+      case SSL_ERROR_NONE:
+
+#if DEBUG
+        SSLDebugBufferPrint("ssl_buff", b->end() + offset, rres, "SSL Read");
+#endif
+
+        ink_assert(rres);
+
+        bytes_read += rres;
+        offset += rres;
+        block_write_avail -= rres;
+        ink_assert(block_write_avail >= 0);
+
+        continue;
+
+      case SSL_ERROR_WANT_WRITE:
+        event = SSL_WRITE_WOULD_BLOCK;
+        Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] SSL_ERROR_WOULD_BLOCK(write)");
+        break;
+      case SSL_ERROR_WANT_READ:
+        event = SSL_READ_WOULD_BLOCK;
+        Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] SSL_ERROR_WOULD_BLOCK(read)");
+        break;
+      case SSL_ERROR_WANT_X509_LOOKUP:
+        event = SSL_READ_WOULD_BLOCK;
+        Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] SSL_ERROR_WOULD_BLOCK(read/x509 lookup)");
+        break;
+      case SSL_ERROR_SYSCALL:
+        if (rres != 0) {
+          // not EOF
+          event = SSL_READ_ERROR;
+          ret = errno;
+          Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] SSL_ERROR_SYSCALL, underlying IO error: %s", strerror(errno));
+        } else {
+          // then EOF observed, treat it as EOS
+          event = SSL_READ_EOS;
+          //Error("[SSL_NetVConnection::ssl_read_from_net] SSL_ERROR_SYSCALL, EOF observed violating SSL protocol");
+        }
+        break;
+      case SSL_ERROR_ZERO_RETURN:
+        event = SSL_READ_EOS;
+        Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] SSL_ERROR_ZERO_RETURN");
+        break;
+      case SSL_ERROR_SSL:
+      default:
+        event = SSL_READ_ERROR;
+        ret = errno;
+        SSLErrorVC(sslvc, "[SSL_NetVConnection::ssl_read_from_net]");
+        break;
+      }                         // switch
+      break;
+    }                           // while( block_write_avail > 0 )
+  }                             // for ( bytes_read = 0; (b != 0); b = b->next)
+
+  if (bytes_read > 0) {
+    Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] bytes_read=%" PRId64, bytes_read);
+    buf.writer()->fill(bytes_read);
+    s->vio.ndone += bytes_read;
+    sslvc->netActivity(lthread);
+
+    ret = bytes_read;
+
+    if (s->vio.ntodo() <= 0) {
+      event = SSL_READ_COMPLETE;
+    } else {
+      event = SSL_READ_READY;
+    }
+  } else                        // if( bytes_read > 0 )
+  {
+#if defined (_DEBUG)
+    if (bytes_read == 0) {
+      Debug("ssl", "[SSL_NetVConnection::ssl_read_from_net] bytes_read == 0");
+    }
+#endif
+  }
+  return (event);
+
+}
+
+
+//changed by YTS Team, yamsat
+void
+SSLNetVConnection::net_read_io(NetHandler *nh, EThread *lthread)
+{
+  int ret;
+  int64_t r = 0;
+  int64_t bytes = 0;
+  NetState *s = &this->read;
+  MIOBufferAccessor &buf = s->vio.buffer;
+  int64_t ntodo = s->vio.ntodo();
+
+  if (sslClientRenegotiationAbort == true) {
+    this->read.triggered = 0;
+    readSignalError(nh, (int)r);
+    Debug("ssl", "[SSLNetVConnection::net_read_io] client renegotiation setting read signal error");
+    return;
+  }
+
+  MUTEX_TRY_LOCK_FOR(lock, s->vio.mutex, lthread, s->vio._cont);
+  if (!lock) {
+    readReschedule(nh);
+    return;
+  }
+  // If it is not enabled, lower its priority.  This allows
+  // a fast connection to speed match a slower connection by
+  // shifting down in priority even if it could read.
+  if (!s->enabled || s->vio.op != VIO::READ) {
+    read_disable(nh, this);
+    return;
+  }
+
+  ink_assert(buf.writer());
+
+  // This function will always return true unless
+  // vc is an SSLNetVConnection.
+  if (!getSSLHandShakeComplete()) {
+    int err;
+
+    if (getSSLClientConnection()) {
+      ret = sslStartHandShake(SSL_EVENT_CLIENT, err);
+    } else {
+      ret = sslStartHandShake(SSL_EVENT_SERVER, err);
+    }
+
+    if (ret == EVENT_ERROR) {
+      this->read.triggered = 0;
+      readSignalError(nh, err);
+    } else if (ret == SSL_HANDSHAKE_WANT_READ || ret == SSL_HANDSHAKE_WANT_ACCEPT) {
+      read.triggered = 0;
+      nh->read_ready_list.remove(this);
+      readReschedule(nh);
+    } else if (ret == SSL_HANDSHAKE_WANT_CONNECT || ret == SSL_HANDSHAKE_WANT_WRITE) {
+      write.triggered = 0;
+      nh->write_ready_list.remove(this);
+      writeReschedule(nh);
+    } else if (ret == EVENT_DONE) {
+      // If this was driven by a zero length read, signal complete when
+      // the handshake is complete. Otherwise set up for continuing read
+      // operations.
+      if (ntodo <= 0) {
+        readSignalDone(VC_EVENT_READ_COMPLETE, nh);
+      } else {
+        read.triggered = 1;
+        if (read.enabled)
+          nh->read_ready_list.in_or_enqueue(this);
+      }
+    } else
+      readReschedule(nh);
+    return;
+  }
+
+  // If there is nothing to do or no space available, disable connection
+  if (ntodo <= 0 || !buf.writer()->write_avail()) {
+    read_disable(nh, this);
+    return;
+  }
+
+  // not sure if this do-while loop is really needed here, please replace this comment if you know
+  do {
+    ret = ssl_read_from_net(this, lthread, r);
+    if (ret == SSL_READ_READY || ret == SSL_READ_ERROR_NONE) {
+      bytes += r;
+    }
+    ink_assert(bytes >= 0);
+  } while ((ret == SSL_READ_READY && bytes == 0) || ret == SSL_READ_ERROR_NONE);
+
+  if (bytes > 0) {
+    if (ret == SSL_READ_WOULD_BLOCK || ret == SSL_READ_READY) {
+      if (readSignalAndUpdate(VC_EVENT_READ_READY) != EVENT_CONT) {
+        Debug("ssl", "ssl_read_from_net, readSignal != EVENT_CONT");
+        return;
+      }
+    }
+  }
+
+  switch (ret) {
+  case SSL_READ_ERROR_NONE:
+  case SSL_READ_READY:
+    readReschedule(nh);
+    return;
+    break;
+  case SSL_WRITE_WOULD_BLOCK:
+  case SSL_READ_WOULD_BLOCK:
+    if (lock.m.m_ptr != s->vio.mutex.m_ptr) {
+      Debug("ssl", "ssl_read_from_net, mutex switched");
+      if (ret == SSL_READ_WOULD_BLOCK)
+        readReschedule(nh);
+      else
+        writeReschedule(nh);
+      return;
+    }
+    // reset the trigger and remove from the ready queue
+    // we will need to be retriggered to read from this socket again
+    read.triggered = 0;
+    nh->read_ready_list.remove(this);
+    Debug("ssl", "read_from_net, read finished - would block");
+#ifdef TS_USE_PORT
+    if (ret == SSL_READ_WOULD_BLOCK)
+      readReschedule(nh);
+    else
+      writeReschedule(nh);
+#endif
+    break;
+
+  case SSL_READ_EOS:
+    // close the connection if we have SSL_READ_EOS, this is the return value from ssl_read_from_net() if we get an SSL_ERROR_ZERO_RETURN from SSL_get_error()
+    // SSL_ERROR_ZERO_RETURN means that the origin server closed the SSL connection
+    read.triggered = 0;
+    readSignalDone(VC_EVENT_EOS, nh);
+
+    if (bytes > 0) {
+      Debug("ssl", "read_from_net, read finished - EOS");
+    } else {
+      Debug("ssl", "read_from_net, read finished - 0 useful bytes read, bytes used by SSL layer");
+    }
+    break;
+  case SSL_READ_COMPLETE:
+    readSignalDone(VC_EVENT_READ_COMPLETE, nh);
+    Debug("ssl", "read_from_net, read finished - signal done");
+    break;
+  case SSL_READ_ERROR:
+    this->read.triggered = 0;
+    readSignalError(nh, (int)r);
+    Debug("ssl", "read_from_net, read finished - read error");
+    break;
+  }
+
+}
+
+
+int64_t
+SSLNetVConnection::load_buffer_and_write(int64_t towrite, int64_t &wattempted, int64_t &total_wrote, MIOBufferAccessor & buf, int &needs)
+{
+  ProxyMutex *mutex = this_ethread()->mutex;
+  int64_t r = 0;
+  int64_t l = 0;
+
+  // XXX Rather than dealing with the block directly, we should use the IOBufferReader API.
+  int64_t offset = buf.reader()->start_offset;
+  IOBufferBlock *b = buf.reader()->block;
+
+  do {
+    // check if we have done this block
+    l = b->read_avail();
+    l -= offset;
+    if (l <= 0) {
+      offset = -l;
+      b = b->next;
+      continue;
+    }
+    // check if to amount to write exceeds that in this buffer
+    int64_t wavail = towrite - total_wrote;
+
+    if (l > wavail) {
+      l = wavail;
+    }
+
+    // TS-2365: If the SSL max record size is set and we have
+    // more data than that, break this into smaller write
+    // operations.
+    int64_t orig_l = l;
+    if (SSLConfigParams::ssl_maxrecord > 0 && l > SSLConfigParams::ssl_maxrecord) {
+        l = SSLConfigParams::ssl_maxrecord;
+    }
+
+    if (!l) {
+      break;
+    }
+
+    wattempted = l;
+    total_wrote += l;
+    Debug("ssl", "SSLNetVConnection::loadBufferAndCallWrite, before do_SSL_write, l=%" PRId64", towrite=%" PRId64", b=%p",
+          l, towrite, b);
+    r = do_SSL_write(ssl, b->start() + offset, (int)l);
+    if (r == l) {
+      wattempted = total_wrote;
+    }
+    if (l == orig_l) {
+        // on to the next block
+        offset = 0;
+        b = b->next;
+    } else {
+        offset += l;
+    }
+
+    Debug("ssl", "SSLNetVConnection::loadBufferAndCallWrite,Number of bytes written=%" PRId64" , total=%" PRId64"", r, total_wrote);
+    NET_DEBUG_COUNT_DYN_STAT(net_calls_to_write_stat, 1);
+  } while (r == l && total_wrote < towrite && b);
+
+  if (r > 0) {
+    if (total_wrote != wattempted) {
+      Debug("ssl", "SSLNetVConnection::loadBufferAndCallWrite, wrote some bytes, but not all requested.");
+      // I'm not sure how this could happen. We should have tried and hit an EAGAIN.
+      needs |= EVENTIO_WRITE;
+      return (r);
+    } else {
+      Debug("ssl", "SSLNetVConnection::loadBufferAndCallWrite, write successful.");
+      return (total_wrote);
+    }
+  } else {
+    int err = SSL_get_error(ssl, (int)r);
+
+    switch (err) {
+    case SSL_ERROR_NONE:
+      Debug("ssl", "SSL_write-SSL_ERROR_NONE");
+      break;
+    case SSL_ERROR_WANT_READ:
+      needs |= EVENTIO_READ;
+      r = -EAGAIN;
+      Debug("ssl", "SSL_write-SSL_ERROR_WANT_READ");
+      break;
+    case SSL_ERROR_WANT_WRITE:
+    case SSL_ERROR_WANT_X509_LOOKUP:
+      needs |= EVENTIO_WRITE;
+      r = -EAGAIN;
+      Debug("ssl", "SSL_write-SSL_ERROR_WANT_WRITE");
+      break;
+    case SSL_ERROR_SYSCALL:
+      r = -errno;
+      Debug("ssl", "SSL_write-SSL_ERROR_SYSCALL");
+      break;
+      // end of stream
+    case SSL_ERROR_ZERO_RETURN:
+      r = -errno;
+      Debug("ssl", "SSL_write-SSL_ERROR_ZERO_RETURN");
+      break;
+    case SSL_ERROR_SSL:
+    default:
+      r = -errno;
+      Debug("ssl", "SSL_write-SSL_ERROR_SSL");
+      SSLErrorVC(this, "SSL_write");
+      break;
+    }
+    return (r);
+  }
+}
+
+SSLNetVConnection::SSLNetVConnection():
+  sslHandShakeComplete(false),
+  sslClientConnection(false),
+  sslClientRenegotiationAbort(false),
+  npnSet(NULL),
+  npnEndpoint(NULL)
+{
+  ssl = NULL;
+  sslHandshakeBeginTime = 0;
+}
+
+void
+SSLNetVConnection::free(EThread * t) {
+  NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, -1);
+  got_remote_addr = 0;
+  got_local_addr = 0;
+  read.vio.mutex.clear();
+  write.vio.mutex.clear();
+  this->mutex.clear();
+  flags = 0;
+  SET_CONTINUATION_HANDLER(this, (SSLNetVConnHandler) & SSLNetVConnection::startEvent);
+  nh = NULL;
+  read.triggered = 0;
+  write.triggered = 0;
+  options.reset();
+  closed = 0;
+  ink_assert(con.fd == NO_FD);
+  if (ssl != NULL) {
+    /*if (sslHandShakeComplete)
+       SSL_set_shutdown(ssl, SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); */
+    SSL_free(ssl);
+    ssl = NULL;
+  }
+  sslHandShakeComplete = false;
+  sslClientConnection = false;
+  sslClientRenegotiationAbort = false;
+  npnSet = NULL;
+  npnEndpoint= NULL;
+
+  if (from_accept_thread) {
+    sslNetVCAllocator.free(this);  
+  } else {
+    THREAD_FREE(this, sslNetVCAllocator, t);
+  }
+}
+
+int
+SSLNetVConnection::sslStartHandShake(int event, int &err)
+{
+
+  switch (event) {
+  case SSL_EVENT_SERVER:
+    if (this->ssl == NULL) {
+      SSLCertificateConfig::scoped_config lookup;
+
+      // Attach the default SSL_CTX to this SSL session. The default context is never going to be able
+      // to negotiate a SSL session, but it's enough to trampoline us into the SNI callback where we
+      // can select the right server certificate.
+      this->ssl = make_ssl_connection(lookup->defaultContext(), this);
+    }
+
+    if (this->ssl == NULL) {
+      SSLErrorVC(this, "failed to create SSL server session");
+      return EVENT_ERROR;
+    }
+
+    return sslServerHandShakeEvent(err);
+
+  case SSL_EVENT_CLIENT:
+    if (this->ssl == NULL) {
+      this->ssl = make_ssl_connection(ssl_NetProcessor.client_ctx, this);
+    }
+
+    if (this->ssl == NULL) {
+      SSLErrorVC(this, "failed to create SSL client session");
+      return EVENT_ERROR;
+    }
+
+    return sslClientHandShakeEvent(err);
+
+  default:
+    ink_assert(0);
+    return EVENT_ERROR;
+  }
+
+}
+
+int
+SSLNetVConnection::sslServerHandShakeEvent(int &err)
+{
+  int ret = SSL_accept(ssl);
+  int ssl_error = SSL_get_error(ssl, ret);
+
+  if (ssl_error != SSL_ERROR_NONE) {
+    err = errno;
+    SSLDebugVC(this,"SSL handshake error: %s (%d), errno=%d", SSLErrorName(ssl_error), ssl_error, err);
+  }
+
+  switch (ssl_error) {
+  case SSL_ERROR_NONE:
+    if (is_debug_tag_set("ssl")) {
+      X509 * cert = SSL_get_peer_certificate(ssl);
+
+      Debug("ssl", "SSL server handshake completed successfully");
+      if (cert) {
+        debug_certificate_name("client certificate subject CN is", X509_get_subject_name(cert));
+        debug_certificate_name("client certificate issuer CN is", X509_get_issuer_name(cert));
+        X509_free(cert);
+      }
+    }
+
+    sslHandShakeComplete = true;
+
+    if (sslHandshakeBeginTime) {
+      const ink_hrtime ssl_handshake_time = ink_get_hrtime() - sslHandshakeBeginTime;
+      Debug("ssl", "ssl handshake time:%" PRId64, ssl_handshake_time);
+      sslHandshakeBeginTime = 0;
+      SSL_INCREMENT_DYN_STAT_EX(ssl_total_handshake_time_stat, ssl_handshake_time);
+      SSL_INCREMENT_DYN_STAT(ssl_total_success_handshake_count_stat);
+    }
+
+    {
+      const unsigned char * proto = NULL;
+      unsigned len = 0;
+
+      // If it's possible to negotiate both NPN and ALPN, then ALPN
+      // is preferred since it is the server's preference.  The server
+      // preference would not be meaningful if we let the client
+      // preference have priority.
+
+#if TS_USE_TLS_ALPN
+      SSL_get0_alpn_selected(ssl, &proto, &len);
+#endif /* TS_USE_TLS_ALPN */
+
+#if TS_USE_TLS_NPN
+      if (len == 0) {
+        SSL_get0_next_proto_negotiated(ssl, &proto, &len);
+      }
+#endif /* TS_USE_TLS_NPN */
+
+      if (len) {
+        // If there's no NPN set, we should not have done this negotiation.
+        ink_assert(this->npnSet != NULL);
+
+        this->npnEndpoint = this->npnSet->findEndpoint(proto, len);
+        this->npnSet = NULL;
+
+        if (this->npnEndpoint == NULL) {
+          Error("failed to find registered SSL endpoint for '%.*s'", (int)len, (const char *)proto);
+          return EVENT_ERROR;
+        }
+
+        Debug("ssl", "client selected next protocol '%.*s'", len, proto);
+      } else {
+        Debug("ssl", "client did not select a next protocol");
+      }
+    }
+
+    return EVENT_DONE;
+
+  case SSL_ERROR_WANT_CONNECT:
+    return SSL_HANDSHAKE_WANT_CONNECT;
+
+  case SSL_ERROR_WANT_WRITE:
+    return SSL_HANDSHAKE_WANT_WRITE;
+
+  case SSL_ERROR_WANT_READ:
+    return SSL_HANDSHAKE_WANT_READ;
+
+  case SSL_ERROR_WANT_ACCEPT:
+  case SSL_ERROR_WANT_X509_LOOKUP:
+    return EVENT_CONT;
+
+  case SSL_ERROR_ZERO_RETURN:
+  case SSL_ERROR_SYSCALL:
+  case SSL_ERROR_SSL:
+  default:
+    return EVENT_ERROR;
+  }
+
+}
+
+
+int
+SSLNetVConnection::sslClientHandShakeEvent(int &err)
+{
+  int ret;
+
+  ret = SSL_connect(ssl);
+  switch (SSL_get_error(ssl, ret)) {
+  case SSL_ERROR_NONE:
+    if (is_debug_tag_set("ssl")) {
+      X509 * cert = SSL_get_peer_certificate(ssl);
+
+      Debug("ssl", "SSL client handshake completed successfully");
+      // if the handshake is complete and write is enabled reschedule the write
+      if (closed == 0 && write.enabled)
+        writeReschedule(nh);
+      if (cert) {
+        debug_certificate_name("server certificate subject CN is", X509_get_subject_name(cert));
+        debug_certificate_name("server certificate issuer CN is", X509_get_issuer_name(cert));
+        X509_free(cert);
+      }
+    }
+
+    sslHandShakeComplete = true;
+    return EVENT_DONE;
+
+  case SSL_ERROR_WANT_WRITE:
+    return SSL_HANDSHAKE_WANT_WRITE;
+
+  case SSL_ERROR_WANT_READ:
+    return SSL_HANDSHAKE_WANT_READ;
+
+  case SSL_ERROR_WANT_X509_LOOKUP:
+    Debug("ssl", "SSLNetVConnection::sslClientHandShakeEvent, would block on read or write");
+    break;
+
+  case SSL_ERROR_WANT_ACCEPT:
+    return SSL_HANDSHAKE_WANT_ACCEPT;
+
+  case SSL_ERROR_WANT_CONNECT:
+    break;
+
+  case SSL_ERROR_ZERO_RETURN:
+    Debug("ssl", "SSLNetVConnection::sslClientHandShakeEvent, EOS");
+    return EVENT_ERROR;
+
+  case SSL_ERROR_SYSCALL:
+    err = errno;
+    Debug("ssl", "SSLNetVConnection::sslClientHandShakeEvent, syscall");
+    return EVENT_ERROR;
+    break;
+
+
+  case SSL_ERROR_SSL:
+  default:
+    err = errno;
+    SSLErrorVC(this, "sslClientHandShakeEvent");
+    return EVENT_ERROR;
+    break;
+
+  }
+  return EVENT_CONT;
+
+}
+
+void
+SSLNetVConnection::registerNextProtocolSet(const SSLNextProtocolSet * s)
+{
+  ink_release_assert(this->npnSet == NULL);
+  this->npnSet = s;
+}
+
+// NextProtocolNegotiation TLS extension callback. The NPN extension
+// allows the client to select a preferred protocol, so all we have
+// to do here is tell them what out protocol set is.
+int
+SSLNetVConnection::advertise_next_protocol(SSL *ssl, const unsigned char **out, unsigned int *outlen,
+                                           void * /*arg ATS_UNUSED */)
+{
+  SSLNetVConnection * netvc = (SSLNetVConnection *)SSL_get_app_data(ssl);
+
+  ink_release_assert(netvc != NULL);
+
+  if (netvc->npnSet && netvc->npnSet->advertiseProtocols(out, outlen)) {
+    // Successful return tells OpenSSL to advertise.
+    return SSL_TLSEXT_ERR_OK;
+  }
+
+  return SSL_TLSEXT_ERR_NOACK;
+}
+
+// ALPN TLS extension callback. Given the client's set of offered
+// protocols, we have to select a protocol to use for this session.
+int
+SSLNetVConnection::select_next_protocol(SSL * ssl, const unsigned char ** out, unsigned char * outlen, const unsigned char * in ATS_UNUSED, unsigned inlen ATS_UNUSED, void *)
+{
+  SSLNetVConnection * netvc = (SSLNetVConnection *)SSL_get_app_data(ssl);
+  const unsigned char * npn = NULL;
+  unsigned npnsz = 0;
+
+  ink_release_assert(netvc != NULL);
+
+  if (netvc->npnSet && netvc->npnSet->advertiseProtocols(&npn, &npnsz)) {
+    // SSL_select_next_proto chooses the first server-offered protocol that appears in the clients protocol set, ie. the
+    // server selects the protocol. This is a n^2 search, so it's preferable to keep the protocol set short.
+
+#if HAVE_SSL_SELECT_NEXT_PROTO
+    if (SSL_select_next_proto((unsigned char **)out, outlen, npn, npnsz, in, inlen) == OPENSSL_NPN_NEGOTIATED) {
+      Debug("ssl", "selected ALPN protocol %.*s", (int)(*outlen), *out);
+      return SSL_TLSEXT_ERR_OK;
+    }
+#endif /* HAVE_SSL_SELECT_NEXT_PROTO */
+  }
+
+  *out = NULL;
+  *outlen = 0;
+  return SSL_TLSEXT_ERR_NOACK;
+}
diff --git a/iocore/net/SSLNextProtocolAccept.cc b/iocore/net/SSLNextProtocolAccept.cc
new file mode 100644
index 00000000..558a1b18
--- /dev/null
+++ b/iocore/net/SSLNextProtocolAccept.cc
@@ -0,0 +1,170 @@
+/** @file
+
+  SSLNextProtocolAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_SSLNextProtocolAccept.h"
+
+static void
+send_plugin_event(Continuation * plugin, int event, void * edata)
+{
+  if (plugin->mutex) {
+    EThread * thread(this_ethread());
+    MUTEX_TAKE_LOCK(plugin->mutex, thread);
+    plugin->handleEvent(event, edata);
+    MUTEX_UNTAKE_LOCK(plugin->mutex, thread);
+  } else {
+    plugin->handleEvent(event, edata);
+  }
+}
+
+static SSLNetVConnection *
+ssl_netvc_cast(int event, void * edata)
+{
+  union {
+    VIO * vio;
+    NetVConnection * vc;
+  } ptr;
+
+  switch (event) {
+  case NET_EVENT_ACCEPT:
+    ptr.vc = static_cast<NetVConnection *>(edata);
+    return dynamic_cast<SSLNetVConnection *>(ptr.vc);
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_READ_COMPLETE:
+  case VC_EVENT_ERROR:
+    ptr.vio = static_cast<VIO *>(edata);
+    return dynamic_cast<SSLNetVConnection *>(ptr.vio->vc_server);
+  default:
+    return NULL;
+  }
+}
+
+// SSLNextProtocolTrampoline is the receiver of the I/O event generated when we perform a 0-length read on the new SSL
+// connection. The 0-length read forces the SSL handshake, which allows us to bind an endpoint that is selected by the
+// NPN extension. The Continuation that receives the read event *must* have a mutex, but we don't want to take a global
+// lock across the handshake, so we make a trampoline to bounce the event from the SSL acceptor to the ultimate session
+// acceptor.
+struct SSLNextProtocolTrampoline : public Continuation
+{
+  explicit
+  SSLNextProtocolTrampoline(const SSLNextProtocolAccept * npn, ProxyMutex* mutex)
+    : Continuation(mutex), npnParent(npn)
+  {
+    SET_HANDLER(&SSLNextProtocolTrampoline::ioCompletionEvent);
+  }
+
+  int ioCompletionEvent(int event, void * edata)
+  {
+    VIO * vio;
+    Continuation * plugin;
+    SSLNetVConnection * netvc;
+
+    vio = static_cast<VIO *>(edata);
+    netvc = dynamic_cast<SSLNetVConnection *>(vio->vc_server);
+    ink_assert(netvc != NULL);
+
+    switch (event) {
+    case VC_EVENT_EOS:
+    case VC_EVENT_ERROR:
+    case VC_EVENT_ACTIVE_TIMEOUT:
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+      netvc->do_io(VIO::CLOSE);
+      delete this;
+      return EVENT_CONT;
+    case VC_EVENT_READ_COMPLETE:
+      break;
+    default:
+      return EVENT_ERROR;
+    }
+
+    plugin = netvc->endpoint();
+    if (plugin) {
+      send_plugin_event(plugin, NET_EVENT_ACCEPT, netvc);
+    } else if (npnParent->endpoint) {
+      // Route to the default endpoint
+      send_plugin_event(npnParent->endpoint, NET_EVENT_ACCEPT, netvc);
+    } else {
+      // No handler, what should we do? Best to just kill the VC while we can.
+      netvc->do_io(VIO::CLOSE);
+    }
+
+    delete this;
+    return EVENT_CONT;
+  }
+
+  const SSLNextProtocolAccept * npnParent;
+};
+
+int
+SSLNextProtocolAccept::mainEvent(int event, void * edata)
+{
+  SSLNetVConnection * netvc = ssl_netvc_cast(event, edata);
+
+  netvc->sslHandshakeBeginTime = ink_get_hrtime();
+  Debug("ssl", "[SSLNextProtocolAccept:mainEvent] event %d netvc %p", event, netvc);
+
+  switch (event) {
+  case NET_EVENT_ACCEPT:
+    ink_release_assert(netvc != NULL);
+    // Register our protocol set with the VC and kick off a zero-length read to
+    // force the SSLNetVConnection to complete the SSL handshake. Don't tell
+    // the endpoint that there is an accept to handle until the read completes
+    // and we know which protocol was negotiated.
+    netvc->registerNextProtocolSet(&this->protoset);
+    netvc->do_io(VIO::READ, new SSLNextProtocolTrampoline(this, netvc->mutex), 0, this->buffer, 0);
+    return EVENT_CONT;
+  default:
+    netvc->do_io(VIO::CLOSE);
+    return EVENT_DONE;
+  }
+}
+
+void
+SSLNextProtocolAccept::accept(NetVConnection *, MIOBuffer *, IOBufferReader *)
+{
+  ink_release_assert(0);
+}
+
+bool
+SSLNextProtocolAccept::registerEndpoint(
+    const char * protocol, Continuation * handler)
+{
+  return this->protoset.registerEndpoint(protocol, handler);
+}
+
+bool
+SSLNextProtocolAccept::unregisterEndpoint(
+    const char * protocol, Continuation * handler)
+{
+  return this->protoset.unregisterEndpoint(protocol, handler);
+}
+
+SSLNextProtocolAccept::SSLNextProtocolAccept(Continuation * ep)
+    : SessionAccept(NULL), buffer(new_empty_MIOBuffer()), endpoint(ep)
+{
+  SET_HANDLER(&SSLNextProtocolAccept::mainEvent);
+}
+
+SSLNextProtocolAccept::~SSLNextProtocolAccept()
+{
+  free_MIOBuffer(this->buffer);
+}
diff --git a/iocore/net/SSLNextProtocolSet.cc b/iocore/net/SSLNextProtocolSet.cc
new file mode 100644
index 00000000..325af27a
--- /dev/null
+++ b/iocore/net/SSLNextProtocolSet.cc
@@ -0,0 +1,172 @@
+/** @file
+
+  SSLNextProtocolSet
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "apidefs.h"
+#include "libts.h"
+#include "P_SSLNextProtocolSet.h"
+
+// For currently defined protocol strings, see
+// http://technotes.googlecode.com/git/nextprotoneg.html. The OpenSSL
+// documentation tells us to return a string in "wire format". The
+// draft NPN RFC helpfuly refuses to document the wire format. The
+// above link says we need to send length-prefixed strings, but does
+// not say how many bytes the length is. For the record, it's 1.
+
+unsigned char *
+append_protocol(const char * proto, unsigned char * buf)
+{
+  size_t sz = strlen(proto);
+  *buf++ = (unsigned char)sz;
+  memcpy(buf, proto, sz);
+  return buf + sz;
+}
+
+static bool
+create_npn_advertisement(
+  const SSLNextProtocolSet::NextProtocolEndpoint::list_type& endpoints,
+  unsigned char ** npn, size_t * len)
+{
+  const SSLNextProtocolSet::NextProtocolEndpoint * ep;
+  unsigned char * advertised;
+
+  *npn = NULL;
+  *len = 0;
+
+  for (ep = endpoints.head; ep != NULL; ep = endpoints.next(ep)) {
+    *len += (strlen(ep->protocol) + 1);
+  }
+
+  *npn = advertised = (unsigned char *)ats_malloc(*len);
+  if (!(*npn)) {
+    goto fail;
+  }
+
+  for (ep = endpoints.head; ep != NULL; ep = endpoints.next(ep)) {
+    Debug("ssl", "advertising protocol %s", ep->protocol);
+    advertised = append_protocol(ep->protocol, advertised);
+  }
+
+  return true;
+
+fail:
+  ats_free(*npn);
+  *npn = NULL;
+  *len = 0;
+  return false;
+}
+
+bool
+SSLNextProtocolSet::advertiseProtocols(const unsigned char ** out, unsigned * len) const
+{
+  if (!npn && !this->endpoints.empty()) {
+    create_npn_advertisement(this->endpoints, &npn, &npnsz);
+  }
+
+  if (npn && npnsz) {
+    *out = npn;
+    *len = npnsz;
+    return true;
+  }
+
+  return false;
+}
+
+bool
+SSLNextProtocolSet::registerEndpoint(const char * proto, Continuation * ep)
+{
+  size_t len = strlen(proto);
+
+  // Once we start advertising, the set is closed. We need to hand an immutable
+  // string down into OpenSSL, and there is no mechanism to tell us when it's
+  // done with it so we have to keep it forever.
+  if (this->npn) {
+    return false;
+  }
+
+  // Both ALPN and NPN only allow 255 bytes of protocol name.
+  if (len > 255) {
+    return false;
+  }
+
+  if (!findEndpoint((const unsigned char *)proto, len)) {
+    this->endpoints.push(new NextProtocolEndpoint(proto, ep));
+    return true;
+  }
+
+  return false;
+}
+
+bool
+SSLNextProtocolSet::unregisterEndpoint(const char * proto, Continuation * ep)
+{
+
+  for (NextProtocolEndpoint * e = this->endpoints.head;
+        e; e = this->endpoints.next(e)) {
+    if (strcmp(proto, e->protocol) == 0 && e->endpoint == ep) {
+      // Protocol must be registered only once; no need to remove
+      // any more entries.
+      this->endpoints.remove(e);
+      return true;
+    }
+  }
+
+  return false;
+}
+
+Continuation *
+SSLNextProtocolSet::findEndpoint(
+  const unsigned char * proto, unsigned len) const
+{
+  for (const NextProtocolEndpoint * ep = this->endpoints.head; ep != NULL; ep = this->endpoints.next(ep)) {
+    size_t sz = strlen(ep->protocol);
+    if (sz == len && memcmp(ep->protocol, proto, len) == 0) {
+      return ep->endpoint;
+    }
+  }
+  return NULL;
+}
+
+SSLNextProtocolSet::SSLNextProtocolSet()
+  : npn(0), npnsz(0)
+{
+}
+
+SSLNextProtocolSet::~SSLNextProtocolSet()
+{
+  ats_free(this->npn);
+
+  for (NextProtocolEndpoint * ep; (ep = this->endpoints.pop());) {
+    delete ep;
+  }
+}
+
+SSLNextProtocolSet::NextProtocolEndpoint::NextProtocolEndpoint(
+        const char * _proto, Continuation * _ep)
+  : protocol(_proto),  endpoint(_ep)
+{
+}
+
+SSLNextProtocolSet::NextProtocolEndpoint::~NextProtocolEndpoint()
+{
+}
diff --git a/iocore/net/SSLUtils.cc b/iocore/net/SSLUtils.cc
new file mode 100644
index 00000000..3d98a5c4
--- /dev/null
+++ b/iocore/net/SSLUtils.cc
@@ -0,0 +1,1481 @@
+/** @file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "libts.h"
+#include "I_Layout.h"
+#include "P_Net.h"
+#include "ink_cap.h"
+
+#include <string>
+#include <openssl/err.h>
+#include <openssl/bio.h>
+#include <openssl/pem.h>
+#include <openssl/x509.h>
+#include <openssl/asn1.h>
+#include <openssl/rand.h>
+#include <unistd.h>
+#include <termios.h>
+
+#if HAVE_OPENSSL_EVP_H
+#include <openssl/evp.h>
+#endif
+
+#if HAVE_OPENSSL_HMAC_H
+#include <openssl/hmac.h>
+#endif
+
+#if HAVE_OPENSSL_TS_H
+#include <openssl/ts.h>
+#endif
+
+#if HAVE_OPENSSL_EC_H
+#include <openssl/ec.h>
+#endif
+
+// ssl_multicert.config field names:
+#define SSL_IP_TAG            "dest_ip"
+#define SSL_CERT_TAG          "ssl_cert_name"
+#define SSL_PRIVATE_KEY_TAG   "ssl_key_name"
+#define SSL_CA_TAG            "ssl_ca_name"
+#define SSL_SESSION_TICKET_ENABLED "ssl_ticket_enabled"
+#define SSL_SESSION_TICKET_KEY_FILE_TAG "ticket_key_name"
+#define SSL_KEY_DIALOG        "ssl_key_dialog"
+
+// openssl version must be 0.9.4 or greater
+#if (OPENSSL_VERSION_NUMBER < 0x00090400L)
+# error Traffic Server requires an OpenSSL library version 0.9.4 or greater
+#endif
+
+#ifndef evp_md_func
+#ifdef OPENSSL_NO_SHA256
+#define evp_md_func EVP_sha1()
+#else
+#define evp_md_func EVP_sha256()
+#endif
+#endif
+
+#if (OPENSSL_VERSION_NUMBER >= 0x10000000L) // openssl returns a const SSL_METHOD
+typedef const SSL_METHOD * ink_ssl_method_t;
+#else
+typedef SSL_METHOD * ink_ssl_method_t;
+#endif
+
+// gather user provided settings from ssl_multicert.config in to a single struct
+struct ssl_user_config
+{
+  ssl_user_config () : session_ticket_enabled(1) {
+  }
+
+  int session_ticket_enabled;  // ssl_ticket_enabled - session ticket enabled
+  xptr<char> addr;   // dest_ip - IPv[64] address to match
+  xptr<char> cert;   // ssl_cert_name - certificate
+  xptr<char> ca;     // ssl_ca_name - CA public certificate
+  xptr<char> key;    // ssl_key_name - Private key
+  xptr<char> ticket_key_filename; // ticket_key_name - session key file. [key_name (16Byte) + HMAC_secret (16Byte) + AES_key (16Byte)]
+  xptr<char> dialog; // ssl_key_dialog - Private key dialog
+};
+
+// Check if the ticket_key callback #define is available, and if so, enable session tickets.
+#ifdef SSL_CTX_set_tlsext_ticket_key_cb
+#  define HAVE_OPENSSL_SESSION_TICKETS 1
+   static int ssl_callback_session_ticket(SSL *, unsigned char *, unsigned char *, EVP_CIPHER_CTX *, HMAC_CTX *, int);
+#endif /* SSL_CTX_set_tlsext_ticket_key_cb */
+
+struct ssl_ticket_key_t
+{
+  unsigned char key_name[16];
+  unsigned char hmac_secret[16];
+  unsigned char aes_key[16];
+};
+
+static int ssl_session_ticket_index = 0;
+static pthread_mutex_t *mutex_buf = NULL;
+static bool open_ssl_initialized = false;
+
+RecRawStatBlock *ssl_rsb = NULL;
+static InkHashTable *ssl_cipher_name_table = NULL;
+
+struct ats_file_bio
+{
+  ats_file_bio(const char * path, const char * mode)
+    : bio(BIO_new_file(path, mode)) {
+  }
+
+  ~ats_file_bio() {
+    (void)BIO_set_close(bio, BIO_CLOSE);
+    BIO_free(bio);
+  }
+
+  operator bool() const {
+    return bio != NULL;
+  }
+
+  BIO * bio;
+
+private:
+  ats_file_bio(const ats_file_bio&);
+  ats_file_bio& operator=(const ats_file_bio&);
+};
+
+/* Using pthread thread ID and mutex functions directly, instead of
+ * ATS this_ethread / ProxyMutex, so that other linked libraries
+ * may use pthreads and openssl without confusing us here. (TS-2271).
+ */
+
+static unsigned long
+SSL_pthreads_thread_id()
+{
+  return (unsigned long)pthread_self();
+}
+
+static void
+SSL_locking_callback(int mode, int type, const char * /* file ATS_UNUSED */, int /* line ATS_UNUSED */)
+{
+  ink_assert(type < CRYPTO_num_locks());
+
+  if (mode & CRYPTO_LOCK) {
+    pthread_mutex_lock(&mutex_buf[type]);
+  } else if (mode & CRYPTO_UNLOCK) {
+    pthread_mutex_unlock(&mutex_buf[type]);
+  } else {
+    Debug("ssl", "invalid SSL locking mode 0x%x", mode);
+    ink_assert(0);
+  }
+}
+
+static bool
+SSL_CTX_add_extra_chain_cert_file(SSL_CTX * ctx, const char * chainfile)
+{
+  X509 *cert;
+  ats_file_bio bio(chainfile, "r");
+
+  if (!bio) {
+    return false;
+  }
+
+  for (;;) {
+    cert = PEM_read_bio_X509_AUX(bio.bio, NULL, NULL, NULL);
+
+    if (!cert) {
+      // No more the certificates in this file.
+      break;
+    }
+
+    // This transfers ownership of the cert (X509) to the SSL context, if successful.
+    if (!SSL_CTX_add_extra_chain_cert(ctx, cert)) {
+      X509_free(cert);
+      return false;
+    }
+  }
+
+  return true;
+}
+
+#if TS_USE_TLS_SNI
+
+static int
+ssl_servername_callback(SSL * ssl, int * ad, void * arg)
+{
+  SSL_CTX *           ctx = NULL;
+  SSLCertLookup *     lookup = (SSLCertLookup *) arg;
+  const char *        servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
+  SSLNetVConnection * netvc = (SSLNetVConnection *)SSL_get_app_data(ssl);
+
+  Debug("ssl", "ssl_servername_callback ssl=%p ad=%d lookup=%p server=%s handshake_complete=%d", ssl, *ad, lookup, servername,
+    netvc->getSSLHandShakeComplete());
+
+  // catch the client renegotiation early on
+  if (SSLConfigParams::ssl_allow_client_renegotiation == false && netvc->getSSLHandShakeComplete()) {
+    Debug("ssl", "ssl_servername_callback trying to renegotiate from the client");
+    return SSL_TLSEXT_ERR_ALERT_FATAL;
+  }
+
+  // The incoming SSL_CTX is either the one mapped from the inbound IP address or the default one. If we
+  // don't find a name-based match at this point, we *do not* want to mess with the context because we've
+  // already made a best effort to find the best match.
+  if (likely(servername)) {
+    ctx = lookup->findInfoInHash((char *)servername);
+  }
+
+  // If there's no match on the server name, try to match on the peer address.
+  if (ctx == NULL) {
+    IpEndpoint ip;
+    int namelen = sizeof(ip);
+
+    safe_getsockname(netvc->get_socket(), &ip.sa, &namelen);
+    ctx = lookup->findInfoInHash(ip);
+  }
+
+  if (ctx != NULL) {
+    SSL_set_SSL_CTX(ssl, ctx);
+  }
+
+  ctx = SSL_get_SSL_CTX(ssl);
+  Debug("ssl", "ssl_servername_callback found SSL context %p for requested name '%s'", ctx, servername);
+
+  if (ctx == NULL) {
+    return SSL_TLSEXT_ERR_NOACK;
+  }
+
+  // We need to return one of the SSL_TLSEXT_ERR constants. If we return an
+  // error, we can fill in *ad with an alert code to propgate to the
+  // client, see SSL_AD_*.
+  return SSL_TLSEXT_ERR_OK;
+}
+
+#endif /* TS_USE_TLS_SNI */
+
+static SSL_CTX *
+ssl_context_enable_sni(SSL_CTX * ctx, SSLCertLookup * lookup)
+{
+#if TS_USE_TLS_SNI
+  if (ctx) {
+    Debug("ssl", "setting SNI callbacks with for ctx %p", ctx);
+    SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_callback);
+    SSL_CTX_set_tlsext_servername_arg(ctx, lookup);
+  }
+#else
+  (void)lookup;
+#endif /* TS_USE_TLS_SNI */
+
+  return ctx;
+}
+
+static SSL_CTX *
+ssl_context_enable_ecdh(SSL_CTX * ctx)
+{
+#if TS_USE_TLS_ECKEY
+
+#if defined(SSL_CTRL_SET_ECDH_AUTO)
+  SSL_CTX_set_ecdh_auto(ctx, 1);
+#elif defined(HAVE_EC_KEY_NEW_BY_CURVE_NAME) && defined(NID_X9_62_prime256v1)
+  EC_KEY * ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+
+  if (ecdh) {
+    SSL_CTX_set_tmp_ecdh(ctx, ecdh);
+    EC_KEY_free(ecdh);
+  }
+#endif
+#endif
+
+  return ctx;
+}
+
+static SSL_CTX *
+ssl_context_enable_tickets(SSL_CTX * ctx, const char * ticket_key_path)
+{
+#if HAVE_OPENSSL_SESSION_TICKETS
+  xptr<char>          ticket_key_data;
+  int                 ticket_key_len;
+  ssl_ticket_key_t *  ticket_key = NULL;
+
+  ticket_key_data = readIntoBuffer(ticket_key_path, __func__, &ticket_key_len);
+  if (!ticket_key_data) {
+    Error("failed to read SSL session ticket key from %s", (const char *)ticket_key_path);
+    goto fail;
+  }
+
+  if (ticket_key_len < 48) {
+    Error("SSL session ticket key from %s is too short (48 bytes are required)", (const char *)ticket_key_path);
+    goto fail;
+  }
+
+  ticket_key = new ssl_ticket_key_t();
+  memcpy(ticket_key->key_name, (const char *)ticket_key_data, 16);
+  memcpy(ticket_key->hmac_secret, (const char *)ticket_key_data + 16, 16);
+  memcpy(ticket_key->aes_key, (const char *)ticket_key_data + 32, 16);
+
+  // Setting the callback can only fail if OpenSSL does not recognize the
+  // SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB constant. we set the callback first
+  // so that we don't leave a ticket_key pointer attached if it fails.
+  if (SSL_CTX_set_tlsext_ticket_key_cb(ctx, ssl_callback_session_ticket) == 0) {
+    Error("failed to set session ticket callback");
+    goto fail;
+  }
+
+  if (SSL_CTX_set_ex_data(ctx, ssl_session_ticket_index, ticket_key) == 0) {
+    Error ("failed to set session ticket data to ctx");
+    goto fail;
+  }
+
+  SSL_CTX_clear_options(ctx, SSL_OP_NO_TICKET);
+  return ctx;
+
+fail:
+  delete ticket_key;
+  return ctx;
+
+#else /* !HAVE_OPENSSL_SESSION_TICKETS */
+  (void)ticket_key_path;
+  return ctx;
+#endif /* HAVE_OPENSSL_SESSION_TICKETS */
+}
+
+struct passphrase_cb_userdata
+{
+    const SSLConfigParams * _configParams;
+    const char * _serverDialog;
+    const char * _serverCert;
+    const char * _serverKey;
+
+    passphrase_cb_userdata(const SSLConfigParams *params,const char *dialog, const char *cert, const char *key) :
+            _configParams(params), _serverDialog(dialog), _serverCert(cert), _serverKey(key) {}
+};
+
+// RAII implementation for struct termios
+struct ssl_termios : public  termios
+{
+  ssl_termios(int fd) {
+    _fd = -1;
+    // populate base class data
+    if (tcgetattr(fd, this) == 0) { // success
+       _fd = fd;
+    }
+    // save our copy
+    _initialAttr = *this;
+  }
+
+  ~ssl_termios() {
+    if (_fd != -1) {
+      tcsetattr(_fd, 0, &_initialAttr);
+    }
+  }
+
+  bool ok() {
+    return (_fd != -1);
+  }
+
+private:
+  int _fd;
+  struct termios _initialAttr;
+};
+
+static int
+ssl_getpassword(const char* prompt, char* buffer, int size)
+{
+  fprintf(stdout, "%s", prompt);
+
+  // disable echo and line buffering
+  ssl_termios tty_attr(STDIN_FILENO);
+
+  if (!tty_attr.ok()) {
+    return -1;
+  }
+
+  tty_attr.c_lflag &= ~ICANON; // no buffer, no backspace
+  tty_attr.c_lflag &= ~ECHO; // no echo
+  tty_attr.c_lflag &= ~ISIG; // no signal for ctrl-c
+
+  if (tcsetattr(STDIN_FILENO, 0, &tty_attr) < 0) {
+    return -1;
+  }
+
+  int i = 0;
+  int ch = 0;
+  *buffer = 0;
+  while ((ch = getchar()) != '\n' && ch != EOF) {
+    // make sure room in buffer
+    if (i >= size - 1) {
+      return -1;
+    }
+
+    buffer[i] = ch;
+    buffer[++i] = 0;
+  }
+
+  return i;
+}
+
+static int
+ssl_private_key_passphrase_callback_exec(char *buf, int size, int rwflag, void *userdata)
+{
+  if (0 == size) {
+    return 0;
+  }
+
+  *buf = 0;
+  passphrase_cb_userdata *ud = static_cast<passphrase_cb_userdata *> (userdata);
+
+  Debug("ssl", "ssl_private_key_passphrase_callback_exec rwflag=%d serverDialog=%s", rwflag, ud->_serverDialog);
+
+  // only respond to reading private keys, not writing them (does ats even do that?)
+  if (0 == rwflag) {
+    // execute the dialog program and use the first line output as the passphrase
+    FILE *f = popen(ud->_serverDialog, "r");
+    if (f) {
+      if (fgets(buf, size, f)) {
+        // remove any ending CR or LF
+        for (char *pass = buf; *pass; pass++) {
+          if (*pass == '\n' || *pass == '\r') {
+            *pass = 0;
+            break;
+          }
+        }
+      }
+      pclose(f);
+    } else {// popen failed
+      Error("could not open dialog '%s' - %s", ud->_serverDialog, strerror(errno));
+    }
+  }
+  return strlen(buf);
+}
+
+static int
+ssl_private_key_passphrase_callback_builtin(char *buf, int size, int rwflag, void *userdata)
+{
+  if (0 == size) {
+    return 0;
+  }
+
+  *buf = 0;
+  passphrase_cb_userdata *ud = static_cast<passphrase_cb_userdata *> (userdata);
+
+  Debug("ssl", "ssl_private_key_passphrase_callback rwflag=%d serverDialog=%s", rwflag, ud->_serverDialog);
+
+  // only respond to reading private keys, not writing them (does ats even do that?)
+  if (0 == rwflag) {
+    // output request
+    fprintf(stdout, "Some of your private key files are encrypted for security reasons.\n");
+    fprintf(stdout, "In order to read them you have to provide the pass phrases.\n");
+    fprintf(stdout, "ssl_cert_name=%s", ud->_serverCert);
+    if (ud->_serverKey) { // output ssl_key_name if provided
+      fprintf(stdout, " ssl_key_name=%s", ud->_serverKey);
+    }
+    fprintf(stdout, "\n");
+    // get passphrase
+    // if error, then no passphrase
+    if (ssl_getpassword("Enter passphrase:", buf, size) <= 0) {
+      *buf = 0;
+    }
+    fprintf(stdout, "\n");
+  }
+  return strlen(buf);
+}
+
+static bool
+ssl_private_key_validate_exec(const char *cmdLine)
+{
+  if (NULL == cmdLine) {
+    errno = EINVAL;
+    return false;
+  }
+
+  bool bReturn = false;
+  char *cmdLineCopy = ats_strdup(cmdLine);
+  char *ptr = cmdLineCopy;
+
+  while(*ptr && !isspace(*ptr)) ++ptr;
+  *ptr = 0;
+  if (access(cmdLineCopy, X_OK) != -1) {
+    bReturn = true;
+  }
+  ats_free(cmdLineCopy);
+  return bReturn;
+}
+
+static int
+SSLRecRawStatSyncCount(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  // Grab all the stats we want from OpenSSL and set the stats. This function only needs to be called by one of the
+  // involved stats, all others *must* call RecRawStatSyncSum.
+  SSLCertificateConfig::scoped_config certLookup;
+
+  int64_t sessions = 0;
+  int64_t hits = 0;
+  int64_t misses = 0;
+  int64_t timeouts = 0;
+
+  if (certLookup) {
+    const unsigned ctxCount = certLookup->count();
+    for (size_t i = 0; i < ctxCount; i++) {
+      SSL_CTX * ctx = certLookup->get(i);
+
+      sessions += SSL_CTX_sess_accept_good(ctx);
+      hits += SSL_CTX_sess_hits(ctx);
+      misses += SSL_CTX_sess_misses(ctx);
+      timeouts += SSL_CTX_sess_timeouts(ctx);
+    }
+  }
+
+  SSL_SET_COUNT_DYN_STAT(ssl_user_agent_sessions_stat, sessions);
+  SSL_SET_COUNT_DYN_STAT(ssl_user_agent_session_hit_stat, hits);
+  SSL_SET_COUNT_DYN_STAT(ssl_user_agent_session_miss_stat, misses);
+  SSL_SET_COUNT_DYN_STAT(ssl_user_agent_session_timeout_stat, timeouts);
+  return RecRawStatSyncCount(name, data_type, data, rsb, id);
+}
+
+void
+SSLInitializeLibrary()
+{
+  if (!open_ssl_initialized) {
+    CRYPTO_set_mem_functions(ats_malloc, ats_realloc, ats_free);
+
+    SSL_load_error_strings();
+    SSL_library_init();
+
+    mutex_buf = (pthread_mutex_t *) OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
+
+    for (int i = 0; i < CRYPTO_num_locks(); i++) {
+      pthread_mutex_init(&mutex_buf[i], NULL);
+    }
+
+    CRYPTO_set_locking_callback(SSL_locking_callback);
+    CRYPTO_set_id_callback(SSL_pthreads_thread_id);
+  }
+
+  int iRet = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
+  if (iRet == -1) {
+    SSLError("failed to create session ticket index");
+  }
+  ssl_session_ticket_index = (iRet == -1 ? 0 : iRet);
+
+  open_ssl_initialized = true;
+}
+
+void
+SSLInitializeStatistics()
+{
+  SSL_CTX *               ctx;
+  SSL *                   ssl;
+  STACK_OF(SSL_CIPHER) *  ciphers;
+
+  // Allocate SSL statistics block.
+  ssl_rsb = RecAllocateRawStatBlock((int) Ssl_Stat_Count);
+  ink_assert(ssl_rsb != NULL);
+
+  // SSL client errors.
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_other_errors",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_other_errors_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_expired_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_expired_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_revoked_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_revoked_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_unknown_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_unknown_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_cert_verify_failed",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_cert_verify_failed_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_bad_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_bad_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_decryption_failed",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_decryption_failed_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_wrong_version",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_wrong_version_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_unknown_ca",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_user_agent_unknown_ca_stat,
+                     RecRawStatSyncSum);
+
+  // Polled SSL context statistics.
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_sessions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) ssl_user_agent_sessions_stat,
+                     SSLRecRawStatSyncCount); //<- only use this fn once
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_session_hit",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) ssl_user_agent_session_hit_stat,
+                     RecRawStatSyncCount);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_session_miss",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) ssl_user_agent_session_miss_stat,
+                     RecRawStatSyncCount);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.user_agent_session_timeout",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) ssl_user_agent_session_timeout_stat,
+                     RecRawStatSyncCount);
+
+  // SSL server errors.
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_other_errors",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_other_errors_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_expired_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_expired_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_revoked_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_revoked_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_unknown_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_unknown_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_cert_verify_failed",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_cert_verify_failed_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_bad_cert",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_bad_cert_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_decryption_failed",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_decryption_failed_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_wrong_version",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_wrong_version_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.origin_server_unknown_ca",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_origin_server_unknown_ca_stat,
+                     RecRawStatSyncSum);
+
+  // SSL handshake time
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.total_handshake_time",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_total_handshake_time_stat,
+                     RecRawStatSyncSum);
+  RecRegisterRawStat(ssl_rsb, RECT_PROCESS, "proxy.process.ssl.total_success_handshake_count",
+                     RECD_INT, RECP_PERSISTENT, (int) ssl_total_success_handshake_count_stat,
+                     RecRawStatSyncCount);
+
+  // Get and register the SSL cipher stats. Note that we are using the default SSL context to obtain
+  // the cipher list. This means that the set of ciphers is fixed by the build configuration and not
+  // filtered by proxy.config.ssl.server.cipher_suite. This keeps the set of cipher suites stable across
+  // configuration reloads and works for the case where we honor the client cipher preference.
+
+  // initialize stat name->index hash table
+  ssl_cipher_name_table = ink_hash_table_create(InkHashTableKeyType_Word);
+
+  ctx = SSLDefaultServerContext();
+  ssl = SSL_new(ctx);
+  ciphers = SSL_get_ciphers(ssl);
+
+  for (int index = 0; index < sk_SSL_CIPHER_num(ciphers); index++) {
+    SSL_CIPHER * cipher = sk_SSL_CIPHER_value(ciphers, index);
+    const char * cipherName = SSL_CIPHER_get_name(cipher);
+    std::string  statName = "proxy.process.ssl.cipher.user_agent." + std::string(cipherName);
+
+    // If room in allocated space ...
+    if ((ssl_cipher_stats_start + index) > ssl_cipher_stats_end) {
+      // Too many ciphers, increase ssl_cipher_stats_end.
+      SSLError("too many ciphers to register metric '%s', increase SSL_Stats::ssl_cipher_stats_end",
+               statName.c_str());
+      continue;
+    }
+
+    // If not already registered ...
+    if (!ink_hash_table_isbound(ssl_cipher_name_table, cipherName)) {
+      ink_hash_table_insert(ssl_cipher_name_table, cipherName, (void *)(intptr_t) (ssl_cipher_stats_start + index));
+      // Register as non-persistent since the order/index is dependent upon configuration.
+      RecRegisterRawStat(ssl_rsb, RECT_PROCESS, statName.c_str(),
+                         RECD_INT, RECP_NON_PERSISTENT, (int) ssl_cipher_stats_start + index,
+                         RecRawStatSyncSum);
+      SSL_CLEAR_DYN_STAT((int) ssl_cipher_stats_start + index);
+      Debug("ssl", "registering SSL cipher metric '%s'", statName.c_str());
+    }
+  }
+
+  SSL_free(ssl);
+  SSL_CTX_free(ctx);
+}
+
+// return true if we have a stat for the error
+static bool
+increment_ssl_client_error(unsigned long err)
+{
+  // we only look for LIB_SSL errors atm
+  if (ERR_LIB_SSL != ERR_GET_LIB(err)) {
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_other_errors_stat);
+    return false;
+  }
+
+  // error was in LIB_SSL, now just switch on REASON
+  // (we ignore FUNCTION with the prejudice that we don't care what function
+  // the error came from, hope that's ok?)
+  switch (ERR_GET_REASON(err)) {
+  case SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_expired_cert_stat);
+    break;
+  case SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_revoked_cert_stat);
+    break;
+  case SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_unknown_cert_stat);
+    break;
+  case SSL_R_CERTIFICATE_VERIFY_FAILED:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_cert_verify_failed_stat);
+    break;
+  case SSL_R_SSLV3_ALERT_BAD_CERTIFICATE:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_bad_cert_stat);
+    break;
+  case SSL_R_TLSV1_ALERT_DECRYPTION_FAILED:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_decryption_failed_stat);
+    break;
+  case SSL_R_WRONG_VERSION_NUMBER:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_wrong_version_stat);
+    break;
+  case SSL_R_TLSV1_ALERT_UNKNOWN_CA:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_unknown_ca_stat);
+    break;
+  default:
+    SSL_INCREMENT_DYN_STAT(ssl_user_agent_other_errors_stat);
+    return false;
+  }
+
+  return true;
+}
+
+// return true if we have a stat for the error
+
+static bool
+increment_ssl_server_error(unsigned long err)
+{
+  // we only look for LIB_SSL errors atm
+  if (ERR_LIB_SSL != ERR_GET_LIB(err)) {
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_other_errors_stat);
+    return false;
+  }
+
+  // error was in LIB_SSL, now just switch on REASON
+  // (we ignore FUNCTION with the prejudice that we don't care what function
+  // the error came from, hope that's ok?)
+  switch (ERR_GET_REASON(err)) {
+  case SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_expired_cert_stat);
+    break;
+  case SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_revoked_cert_stat);
+    break;
+  case SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_unknown_cert_stat);
+    break;
+  case SSL_R_CERTIFICATE_VERIFY_FAILED:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_cert_verify_failed_stat);
+    break;
+  case SSL_R_SSLV3_ALERT_BAD_CERTIFICATE:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_bad_cert_stat);
+    break;
+  case SSL_R_TLSV1_ALERT_DECRYPTION_FAILED:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_decryption_failed_stat);
+    break;
+  case SSL_R_WRONG_VERSION_NUMBER:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_wrong_version_stat);
+    break;
+  case SSL_R_TLSV1_ALERT_UNKNOWN_CA:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_unknown_ca_stat);
+    break;
+  default:
+    SSL_INCREMENT_DYN_STAT(ssl_origin_server_other_errors_stat);
+    return false;
+  }
+
+  return true;
+}
+
+void
+SSLDiagnostic(const SrcLoc& loc, bool debug, SSLNetVConnection * vc, const char * fmt, ...)
+{
+  unsigned long l;
+  char buf[256];
+  const char *file, *data;
+  int line, flags;
+  unsigned long es;
+  va_list ap;
+
+  ip_text_buffer ip_buf;
+  bool ip_buf_flag = false;
+  if (vc) {
+    ats_ip_ntop(vc->get_remote_addr(), ip_buf, sizeof(ip_buf));
+    ip_buf_flag = true;
+  }
+
+  es = CRYPTO_thread_id();
+  while ((l = ERR_get_error_line_data(&file, &line, &data, &flags)) != 0) {
+    if (debug) {
+      if (unlikely(diags->on())) {
+        diags->log("ssl", DL_Debug, loc.file, loc.func, loc.line,
+            "SSL::%lu:%s:%s:%d%s%s%s%s", es, ERR_error_string(l, buf), file, line,
+          (flags & ERR_TXT_STRING) ? ":" : "", (flags & ERR_TXT_STRING) ? data : "", 
+          ip_buf_flag? ": peer address is " : "", ip_buf);
+      }
+    } else {
+      diags->error(DL_Error, loc.file, loc.func, loc.line,
+          "SSL::%lu:%s:%s:%d%s%s%s%s", es, ERR_error_string(l, buf), file, line,
+          (flags & ERR_TXT_STRING) ? ":" : "", (flags & ERR_TXT_STRING) ? data : "",
+          ip_buf_flag? ": peer address is " : "", ip_buf);
+    }
+
+    // Tally desired stats (only client/server connection stats, not init
+    // issues where vc is NULL)
+    if (vc) {
+      // getSSLClientConnection - true if ats is client (we update server stats)
+      if (vc->getSSLClientConnection()) {
+        increment_ssl_server_error(l); // update server error stats
+      } else {
+        increment_ssl_client_error(l); // update client error stat
+      }
+    }
+  }
+
+  va_start(ap, fmt);
+  if (debug) {
+    diags->log_va("ssl", DL_Debug, &loc, fmt, ap);
+  } else {
+    diags->error_va(DL_Error, loc.file, loc.func, loc.line, fmt, ap);
+  }
+  va_end(ap);
+
+}
+
+const char *
+SSLErrorName(int ssl_error)
+{
+  static const char * names[] =  {
+    "SSL_ERROR_NONE",
+    "SSL_ERROR_SSL",
+    "SSL_ERROR_WANT_READ",
+    "SSL_ERROR_WANT_WRITE",
+    "SSL_ERROR_WANT_X509_LOOKUP",
+    "SSL_ERROR_SYSCALL",
+    "SSL_ERROR_ZERO_RETURN",
+    "SSL_ERROR_WANT_CONNECT",
+    "SSL_ERROR_WANT_ACCEPT"
+  };
+
+  if (ssl_error < 0 || ssl_error >= (int)countof(names)) {
+    return "unknown SSL error";
+  }
+
+  return names[ssl_error];
+}
+
+void
+SSLDebugBufferPrint(const char * tag, const char * buffer, unsigned buflen, const char * message)
+{
+  if (is_debug_tag_set(tag)) {
+    if (message != NULL) {
+      fprintf(stdout, "%s\n", message);
+    }
+    for (unsigned ii = 0; ii < buflen; ii++) {
+      putc(buffer[ii], stdout);
+    }
+    putc('\n', stdout);
+  }
+}
+
+SSL_CTX *
+SSLDefaultServerContext()
+{
+  ink_ssl_method_t meth = NULL;
+
+  meth = SSLv23_server_method();
+  return SSL_CTX_new(meth);
+}
+
+SSL_CTX *
+SSLInitServerContext(
+    const SSLConfigParams * params,
+    const ssl_user_config & sslMultCertSettings)
+{
+  int         session_id_context;
+  int         server_verify_client;
+  xptr<char>  completeServerCertPath;
+  SSL_CTX *   ctx = SSLDefaultServerContext();
+
+  // disable selected protocols
+  SSL_CTX_set_options(ctx, params->ssl_ctx_options);
+
+  switch (params->ssl_session_cache) {
+  case SSLConfigParams::SSL_SESSION_CACHE_MODE_OFF:
+    SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF|SSL_SESS_CACHE_NO_INTERNAL);
+    break;
+  case SSLConfigParams::SSL_SESSION_CACHE_MODE_SERVER:
+    SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_SERVER);
+    SSL_CTX_sess_set_cache_size(ctx, params->ssl_session_cache_size);
+    if (params->ssl_session_cache_timeout) {
+        SSL_CTX_set_timeout(ctx, params->ssl_session_cache_timeout);
+    }
+    break;
+  }
+
+#ifdef SSL_MODE_RELEASE_BUFFERS
+  if (OPENSSL_VERSION_NUMBER > 0x1000107fL) {
+    Debug("ssl", "enabling SSL_MODE_RELEASE_BUFFERS");
+    SSL_CTX_set_mode(ctx, SSL_MODE_RELEASE_BUFFERS);
+  }
+#endif
+  SSL_CTX_set_quiet_shutdown(ctx, 1);
+
+  // pass phrase dialog configuration
+  passphrase_cb_userdata ud(params, sslMultCertSettings.dialog, sslMultCertSettings.cert, sslMultCertSettings.key);
+
+  if (sslMultCertSettings.dialog) {
+    pem_password_cb * passwd_cb = NULL;
+    if (strncmp(sslMultCertSettings.dialog, "exec:", 5) == 0) {
+      ud._serverDialog = &sslMultCertSettings.dialog[5];
+      // validate the exec program
+      if (!ssl_private_key_validate_exec(ud._serverDialog)) {
+        SSLError("failed to access '%s' pass phrase program: %s", (const char *) ud._serverDialog, strerror(errno));
+        goto fail;
+      }
+      passwd_cb = ssl_private_key_passphrase_callback_exec;
+    } else if (strcmp(sslMultCertSettings.dialog, "builtin") == 0) {
+      passwd_cb = ssl_private_key_passphrase_callback_builtin;
+    } else { // unknown config
+      SSLError("unknown " SSL_KEY_DIALOG " configuration value '%s'", (const char *)sslMultCertSettings.dialog);
+      goto fail;
+    }
+    SSL_CTX_set_default_passwd_cb(ctx, passwd_cb);
+    SSL_CTX_set_default_passwd_cb_userdata(ctx, &ud);
+  }
+
+  // if sslMultCertSettings.cert == NULL, then we are initing the default context so skip server cert init
+  if (sslMultCertSettings.cert) {
+    // XXX OpenSSL recommends that we should use SSL_CTX_use_certificate_chain_file() here. That API
+    // also loads only the first certificate, but it allows the intermediate CA certificate chain to
+    // be in the same file. SSL_CTX_use_certificate_chain_file() was added in OpenSSL 0.9.3.
+    completeServerCertPath = Layout::relative_to(params->serverCertPathOnly, sslMultCertSettings.cert);
+    if (!SSL_CTX_use_certificate_file(ctx, completeServerCertPath, SSL_FILETYPE_PEM)) {
+      SSLError("failed to load certificate from %s", (const char *) completeServerCertPath);
+      goto fail;
+    }
+
+    // First, load any CA chains from the global chain file.
+    if (params->serverCertChainFilename) {
+      xptr<char> completeServerCertChainPath(Layout::relative_to(params->serverCertPathOnly, params->serverCertChainFilename));
+      if (!SSL_CTX_add_extra_chain_cert_file(ctx, completeServerCertChainPath)) {
+        SSLError("failed to load global certificate chain from %s", (const char *) completeServerCertChainPath);
+        goto fail;
+      }
+    }
+
+    // Now, load any additional certificate chains specified in this entry.
+    if (sslMultCertSettings.ca) {
+      xptr<char> completeServerCertChainPath(Layout::relative_to(params->serverCertPathOnly, sslMultCertSettings.ca));
+      if (!SSL_CTX_add_extra_chain_cert_file(ctx, completeServerCertChainPath)) {
+        SSLError("failed to load certificate chain from %s", (const char *) completeServerCertChainPath);
+        goto fail;
+      }
+    }
+
+    if (!sslMultCertSettings.key) {
+      // assume private key is contained in cert obtained from multicert file.
+      if (!SSL_CTX_use_PrivateKey_file(ctx, completeServerCertPath, SSL_FILETYPE_PEM)) {
+        SSLError("failed to load server private key from %s", (const char *) completeServerCertPath);
+        goto fail;
+      }
+    } else if (params->serverKeyPathOnly != NULL) {
+      xptr<char> completeServerKeyPath(Layout::get()->relative_to(params->serverKeyPathOnly, sslMultCertSettings.key));
+      if (!SSL_CTX_use_PrivateKey_file(ctx, completeServerKeyPath, SSL_FILETYPE_PEM)) {
+        SSLError("failed to load server private key from %s", (const char *) completeServerKeyPath);
+        goto fail;
+      }
+    } else {
+      SSLError("empty SSL private key path in records.config");
+    }
+
+    if (!SSL_CTX_check_private_key(ctx)) {
+      SSLError("server private key does not match the certificate public key");
+      goto fail;
+    }
+  }
+  if (params->clientCertLevel != 0) {
+
+    if (params->serverCACertFilename != NULL && params->serverCACertPath != NULL) {
+      if ((!SSL_CTX_load_verify_locations(ctx, params->serverCACertFilename, params->serverCACertPath)) ||
+          (!SSL_CTX_set_default_verify_paths(ctx))) {
+        SSLError("CA Certificate file or CA Certificate path invalid");
+        goto fail;
+      }
+    }
+
+    if (params->clientCertLevel == 2) {
+      server_verify_client = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_CLIENT_ONCE;
+    } else if (params->clientCertLevel == 1) {
+      server_verify_client = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
+    } else {
+      // disable client cert support
+      server_verify_client = SSL_VERIFY_NONE;
+      Error("illegal client certification level %d in records.config", server_verify_client);
+    }
+
+    // XXX I really don't think that this is a good idea. We should be setting this a some finer granularity,
+    // possibly per SSL CTX. httpd uses md5(host:port), which seems reasonable.
+    session_id_context = 1;
+    SSL_CTX_set_session_id_context(ctx, (const unsigned char *) &session_id_context, sizeof(session_id_context));
+
+    SSL_CTX_set_verify(ctx, server_verify_client, NULL);
+    SSL_CTX_set_verify_depth(ctx, params->verify_depth); // might want to make configurable at some point.
+
+    SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(params->serverCACertFilename));
+  }
+
+  if (params->cipherSuite != NULL) {
+    if (!SSL_CTX_set_cipher_list(ctx, params->cipherSuite)) {
+      SSLError("invalid cipher suite in records.config");
+      goto fail;
+    }
+  }
+#define SSL_CLEAR_PW_REFERENCES(UD,CTX) { \
+  memset(static_cast<void *>(&UD),0,sizeof(UD));\
+  SSL_CTX_set_default_passwd_cb(CTX, NULL);\
+  SSL_CTX_set_default_passwd_cb_userdata(CTX, NULL);\
+  }
+  SSL_CLEAR_PW_REFERENCES(ud,ctx)
+  return ssl_context_enable_ecdh(ctx);
+
+fail:
+  SSL_CLEAR_PW_REFERENCES(ud,ctx)
+  SSL_CTX_free(ctx);
+  return NULL;
+}
+
+SSL_CTX *
+SSLInitClientContext(const SSLConfigParams * params)
+{
+  ink_ssl_method_t meth = NULL;
+  SSL_CTX * client_ctx = NULL;
+  char * clientKeyPtr = NULL;
+
+  // Note that we do not call RAND_seed() explicitly here, we depend on OpenSSL
+  // to do the seeding of the PRNG for us. This is the case for all platforms that
+  // has /dev/urandom for example.
+
+  meth = SSLv23_client_method();
+  client_ctx = SSL_CTX_new(meth);
+
+  // disable selected protocols
+  SSL_CTX_set_options(client_ctx, params->ssl_ctx_options);
+  if (!client_ctx) {
+    SSLError("cannot create new client context");
+    return NULL;
+  }
+
+  // if no path is given for the client private key,
+  // assume it is contained in the client certificate file.
+  clientKeyPtr = params->clientKeyPath;
+  if (clientKeyPtr == NULL) {
+    clientKeyPtr = params->clientCertPath;
+  }
+
+  if (params->clientCertPath != 0) {
+    if (!SSL_CTX_use_certificate_file(client_ctx, params->clientCertPath, SSL_FILETYPE_PEM)) {
+      SSLError("failed to load client certificate from %s", params->clientCertPath);
+      goto fail;
+    }
+
+    if (!SSL_CTX_use_PrivateKey_file(client_ctx, clientKeyPtr, SSL_FILETYPE_PEM)) {
+      SSLError("failed to load client private key file from %s", clientKeyPtr);
+      goto fail;
+    }
+
+    if (!SSL_CTX_check_private_key(client_ctx)) {
+      SSLError("client private key (%s) does not match the certificate public key (%s)",
+          clientKeyPtr, params->clientCertPath);
+      goto fail;
+    }
+  }
+
+  if (params->clientVerify) {
+    int client_verify_server;
+
+    client_verify_server = params->clientVerify ? SSL_VERIFY_PEER : SSL_VERIFY_NONE;
+    SSL_CTX_set_verify(client_ctx, client_verify_server, NULL);
+    SSL_CTX_set_verify_depth(client_ctx, params->client_verify_depth);
+
+    if (params->clientCACertFilename != NULL && params->clientCACertPath != NULL) {
+      if (!SSL_CTX_load_verify_locations(client_ctx, params->clientCACertFilename, params->clientCACertPath)) {
+        SSLError("invalid client CA Certificate file (%s) or CA Certificate path (%s)",
+            params->clientCACertFilename, params->clientCACertPath);
+        goto fail;
+      }
+    }
+
+    if (!SSL_CTX_set_default_verify_paths(client_ctx)) {
+      SSLError("failed to set the default verify paths");
+      goto fail;
+    }
+  }
+
+  if (SSLConfigParams::init_ssl_ctx_cb) {
+    SSLConfigParams::init_ssl_ctx_cb(client_ctx, false);
+  }
+
+  return client_ctx;
+
+fail:
+  SSL_CTX_free(client_ctx);
+  return NULL;
+}
+
+static char *
+asn1_strdup(ASN1_STRING * s)
+{
+  // Make sure we have an 8-bit encoding.
+  ink_assert(ASN1_STRING_type(s) == V_ASN1_IA5STRING ||
+    ASN1_STRING_type(s) == V_ASN1_UTF8STRING ||
+    ASN1_STRING_type(s) == V_ASN1_PRINTABLESTRING ||
+    ASN1_STRING_type(s) == V_ASN1_T61STRING);
+
+  return ats_strndup((const char *)ASN1_STRING_data(s), ASN1_STRING_length(s));
+}
+
+// Given a certificate and it's corresponding SSL_CTX context, insert hash
+// table aliases for subject CN and subjectAltNames DNS without wildcard,
+// insert trie aliases for those with wildcard.
+static void
+ssl_index_certificate(SSLCertLookup * lookup, SSL_CTX * ctx, const char * certfile)
+{
+  X509_NAME *   subject = NULL;
+  X509 *        cert;
+  ats_file_bio  bio(certfile, "r");
+
+  cert = PEM_read_bio_X509_AUX(bio.bio, NULL, NULL, NULL);
+  if (NULL == cert) {
+    return;
+  }
+
+  // Insert a key for the subject CN.
+  subject = X509_get_subject_name(cert);
+  if (subject) {
+    int pos = -1;
+    for (;;) {
+      pos = X509_NAME_get_index_by_NID(subject, NID_commonName, pos);
+      if (pos == -1) {
+        break;
+      }
+
+      X509_NAME_ENTRY * e = X509_NAME_get_entry(subject, pos);
+      ASN1_STRING * cn = X509_NAME_ENTRY_get_data(e);
+      xptr<char> name(asn1_strdup(cn));
+
+      Debug("ssl", "mapping '%s' to certificate %s", (const char *) name, certfile);
+      lookup->insert(ctx, name);
+    }
+  }
+
+#if HAVE_OPENSSL_TS_H
+  // Traverse the subjectAltNames (if any) and insert additional keys for the SSL context.
+  GENERAL_NAMES * names = (GENERAL_NAMES *) X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
+  if (names) {
+    unsigned count = sk_GENERAL_NAME_num(names);
+    for (unsigned i = 0; i < count; ++i) {
+      GENERAL_NAME * name;
+
+      name = sk_GENERAL_NAME_value(names, i);
+      if (name->type == GEN_DNS) {
+        xptr<char> dns(asn1_strdup(name->d.dNSName));
+        Debug("ssl", "mapping '%s' to certificate %s", (const char *) dns, certfile);
+        lookup->insert(ctx, dns);
+      }
+    }
+
+    GENERAL_NAMES_free(names);
+  }
+#endif // HAVE_OPENSSL_TS_H
+  X509_free(cert);
+}
+
+// This callback function is executed while OpenSSL processes the SSL
+// handshake and does SSL record layer stuff.  It's used to trap
+// client-initiated renegotiations and update cipher stats
+static void
+ssl_callback_info(const SSL *ssl, int where, int ret)
+{
+  Debug("ssl", "ssl_callback_info ssl: %p where: %d ret: %d", ssl, where, ret);
+  SSLNetVConnection * netvc = (SSLNetVConnection *)SSL_get_app_data(ssl);
+
+  if ((where & SSL_CB_ACCEPT_LOOP) && netvc->getSSLHandShakeComplete() == true &&
+      SSLConfigParams::ssl_allow_client_renegotiation == false) {
+    int state = SSL_get_state(ssl);
+
+    if (state == SSL3_ST_SR_CLNT_HELLO_A || state == SSL23_ST_SR_CLNT_HELLO_A) {
+      netvc->setSSLClientRenegotiationAbort(true);
+      Debug("ssl", "ssl_callback_info trying to renegotiate from the client");
+    }
+  }
+  if (where & SSL_CB_HANDSHAKE_DONE) {
+    // handshake is complete
+    const SSL_CIPHER * cipher = SSL_get_current_cipher(ssl);
+    if (cipher) {
+      const char * cipherName = SSL_CIPHER_get_name(cipher);
+      // lookup index of stat by name and incr count
+      InkHashTableValue data;
+      if (ink_hash_table_lookup(ssl_cipher_name_table, cipherName, &data)) {
+        SSL_INCREMENT_DYN_STAT((intptr_t)data);
+      }
+    }
+  }
+}
+
+static bool
+ssl_store_ssl_context(
+    const SSLConfigParams * params,
+    SSLCertLookup *         lookup,
+    const ssl_user_config & sslMultCertSettings)
+{
+  SSL_CTX *   ctx;
+  xptr<char>  certpath;
+  xptr<char>  session_key_path;
+
+  ctx = ssl_context_enable_sni(SSLInitServerContext(params, sslMultCertSettings), lookup);
+  if (!ctx) {
+    return false;
+  }
+
+  SSL_CTX_set_info_callback(ctx, ssl_callback_info);
+
+#if TS_USE_TLS_NPN
+  SSL_CTX_set_next_protos_advertised_cb(ctx, SSLNetVConnection::advertise_next_protocol, NULL);
+#endif /* TS_USE_TLS_NPN */
+
+#if TS_USE_TLS_ALPN
+  SSL_CTX_set_alpn_select_cb(ctx, SSLNetVConnection::select_next_protocol, NULL);
+#endif /* TS_USE_TLS_ALPN */
+
+  certpath = Layout::relative_to(params->serverCertPathOnly, sslMultCertSettings.cert);
+
+  // Index this certificate by the specified IP(v6) address. If the address is "*", make it the default context.
+  if (sslMultCertSettings.addr) {
+    if (strcmp(sslMultCertSettings.addr, "*") == 0) {
+      lookup->ssl_default = ctx;
+      lookup->insert(ctx, sslMultCertSettings.addr);
+    } else {
+      IpEndpoint ep;
+
+      if (ats_ip_pton(sslMultCertSettings.addr, &ep) == 0) {
+        Debug("ssl", "mapping '%s' to certificate %s", (const char *)sslMultCertSettings.addr, (const char *)certpath);
+        lookup->insert(ctx, ep);
+      } else {
+        Error("'%s' is not a valid IPv4 or IPv6 address", (const char *)sslMultCertSettings.addr);
+      }
+    }
+  }
+
+#if defined(SSL_OP_NO_TICKET)
+  // Session tickets are enabled by default. Disable if explicitly requested.
+  if (sslMultCertSettings.session_ticket_enabled == 0) {
+    SSL_CTX_set_options(ctx, SSL_OP_NO_TICKET);
+    Debug("ssl", "ssl session ticket is disabled");
+  }
+#endif
+
+  // Load the session ticket key if session tickets are not disabled and we have key name.
+  if (sslMultCertSettings.session_ticket_enabled != 0 && sslMultCertSettings.ticket_key_filename) {
+    xptr<char> ticket_key_path(Layout::relative_to(params->serverCertPathOnly, sslMultCertSettings.ticket_key_filename));
+    ssl_context_enable_tickets(ctx, ticket_key_path);
+  }
+
+  // Insert additional mappings. Note that this maps multiple keys to the same value, so when
+  // this code is updated to reconfigure the SSL certificates, it will need some sort of
+  // refcounting or alternate way of avoiding double frees.
+  Debug("ssl", "importing SNI names from %s", (const char *)certpath);
+  ssl_index_certificate(lookup, ctx, certpath);
+
+  if (SSLConfigParams::init_ssl_ctx_cb) {
+    SSLConfigParams::init_ssl_ctx_cb(ctx, true);
+  }
+
+  return true;
+}
+
+static bool
+ssl_extract_certificate(
+    const matcher_line * line_info,
+    ssl_user_config & sslMultCertSettings)
+
+{
+  for (int i = 0; i < MATCHER_MAX_TOKENS; ++i) {
+    const char * label;
+    const char * value;
+
+    label = line_info->line[0][i];
+    value = line_info->line[1][i];
+
+    if (label == NULL) {
+      continue;
+    }
+
+    if (strcasecmp(label, SSL_IP_TAG) == 0) {
+      sslMultCertSettings.addr = ats_strdup(value);
+    }
+
+    if (strcasecmp(label, SSL_CERT_TAG) == 0) {
+      sslMultCertSettings.cert = ats_strdup(value);
+    }
+
+    if (strcasecmp(label, SSL_CA_TAG) == 0) {
+      sslMultCertSettings.ca = ats_strdup(value);
+    }
+
+    if (strcasecmp(label, SSL_PRIVATE_KEY_TAG) == 0) {
+      sslMultCertSettings.key = ats_strdup(value);
+    }
+
+    if (strcasecmp(label, SSL_SESSION_TICKET_ENABLED) == 0) {
+      sslMultCertSettings.session_ticket_enabled = atoi(value);
+    }
+
+    if (strcasecmp(label, SSL_SESSION_TICKET_KEY_FILE_TAG) == 0) {
+      sslMultCertSettings.ticket_key_filename = ats_strdup(value);
+    }
+
+    if (strcasecmp(label, SSL_KEY_DIALOG) == 0) {
+      sslMultCertSettings.dialog = ats_strdup(value);
+    }
+  }
+  if (!sslMultCertSettings.cert) {
+    Error("missing %s tag", SSL_CERT_TAG);
+    return false;
+  }
+
+  return true;
+}
+
+bool
+SSLParseCertificateConfiguration(
+    const SSLConfigParams * params,
+    SSLCertLookup *         lookup)
+{
+  char *      tok_state = NULL;
+  char *      line = NULL;
+  xptr<char>  file_buf;
+  unsigned    line_num = 0;
+  matcher_line line_info;
+
+  bool alarmAlready = false;
+  char errBuf[1024];
+
+  const matcher_tags sslCertTags = {
+    NULL, NULL, NULL, NULL, NULL, NULL, false
+  };
+
+  Note("loading SSL certificate configuration from %s", params->configFilePath);
+
+  if (params->configFilePath) {
+    file_buf = readIntoBuffer(params->configFilePath, __func__, NULL);
+  }
+
+  if (!file_buf) {
+    Error("failed to read SSL certificate configuration from %s", params->configFilePath);
+    return false;
+  }
+
+  // elevate/allow file access to root read only files/certs
+  uint32_t elevate_setting = 0;
+  REC_ReadConfigInteger(elevate_setting, "proxy.config.ssl.cert.load_elevated");
+  ElevateAccess elevate_access(elevate_setting != 0); // destructor will demote for us
+
+  line = tokLine(file_buf, &tok_state);
+  while (line != NULL) {
+
+    line_num++;
+
+    // skip all blank spaces at beginning of line
+    while (*line && isspace(*line)) {
+      line++;
+    }
+
+    if (*line != '\0' && *line != '#') {
+      ssl_user_config sslMultiCertSettings;
+      const char * errPtr;
+
+      errPtr = parseConfigLine(line, &line_info, &sslCertTags);
+
+      if (errPtr != NULL) {
+        snprintf(errBuf, sizeof(errBuf), "%s: discarding %s entry at line %d: %s",
+                     __func__, params->configFilePath, line_num, errPtr);
+        REC_SignalError(errBuf, alarmAlready);
+      } else {
+        if (ssl_extract_certificate(&line_info, sslMultiCertSettings)) {
+          if (!ssl_store_ssl_context(params, lookup, sslMultiCertSettings)) {
+            Error("failed to load SSL certificate specification from %s line %u",
+                params->configFilePath, line_num);
+          }
+        } else {
+          snprintf(errBuf, sizeof(errBuf), "%s: discarding invalid %s entry at line %u",
+                       __func__, params->configFilePath, line_num);
+          REC_SignalError(errBuf, alarmAlready);
+        }
+      }
+
+    }
+
+    line = tokLine(NULL, &tok_state);
+  }
+
+  // We *must* have a default context even if it can't possibly work. The default context is used to
+  // bootstrap the SSL handshake so that we can subsequently do the SNI lookup to switch to the real
+  // context.
+  if (lookup->ssl_default == NULL) {
+    ssl_user_config sslMultiCertSettings;
+    sslMultiCertSettings.addr = ats_strdup("*");
+    ssl_store_ssl_context(params, lookup, sslMultiCertSettings);
+  }
+
+  return true;
+}
+
+#if HAVE_OPENSSL_SESSION_TICKETS
+/*
+ * RFC 5077. Create session ticket to resume SSL session without requiring session-specific state at the TLS server.
+ * Specifically, it distributes the encrypted session-state information to the client in the form of a ticket and
+ * a mechanism to present the ticket back to the server.
+ * */
+static int
+ssl_callback_session_ticket(
+    SSL * ssl,
+    unsigned char * keyname,
+    unsigned char * iv,
+    EVP_CIPHER_CTX * cipher_ctx,
+    HMAC_CTX * hctx,
+    int enc)
+{
+  ssl_ticket_key_t* ssl_ticket_key = (ssl_ticket_key_t*) SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl), ssl_session_ticket_index);
+
+  if (NULL == ssl_ticket_key) {
+    Error("ssl ticket key is null.");
+    return -1;
+  }
+
+  if (enc == 1) {
+    memcpy(keyname, ssl_ticket_key->key_name, 16);
+    RAND_pseudo_bytes(iv, EVP_MAX_IV_LENGTH);
+    EVP_EncryptInit_ex(cipher_ctx, EVP_aes_128_cbc(), NULL, ssl_ticket_key->aes_key, iv);
+    HMAC_Init_ex(hctx, ssl_ticket_key->hmac_secret, 16, evp_md_func, NULL);
+    Note("create ticket for a new session");
+
+    return 0;
+  } else if (enc == 0) {
+    if (memcmp(keyname, ssl_ticket_key->key_name, 16)) {
+      Error("keyname is not consistent.");
+      return 0;
+    }
+
+    EVP_DecryptInit_ex(cipher_ctx, EVP_aes_128_cbc(), NULL, ssl_ticket_key->aes_key, iv);
+    HMAC_Init_ex(hctx, ssl_ticket_key->hmac_secret, 16, evp_md_func, NULL);
+
+    Note("verify the ticket for an existing session." );
+    return 1;
+  }
+
+  return -1;
+}
+#endif /* HAVE_OPENSSL_SESSION_TICKETS */
+
+void
+SSLReleaseContext(SSL_CTX * ctx)
+{
+  ssl_ticket_key_t * ssl_ticket_key = (ssl_ticket_key_t *)SSL_CTX_get_ex_data(ctx, ssl_session_ticket_index);
+
+  // Free the ticket if this is the last reference.
+  if (ctx->references == 1 && ssl_ticket_key) {
+     delete ssl_ticket_key;
+  }
+
+  SSL_CTX_free(ctx);
+}
diff --git a/iocore/net/SessionAccept.cc b/iocore/net/SessionAccept.cc
new file mode 100644
index 00000000..138501e7
--- /dev/null
+++ b/iocore/net/SessionAccept.cc
@@ -0,0 +1,41 @@
+/** @file
+
+  SessionAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_SessionAccept.h"
+#include "P_Net.h"
+
+SessionAccept::SessionAccept(ProxyMutex *amutex)
+  : Continuation(amutex)
+{
+  SET_HANDLER(&SessionAccept::mainEvent);
+}
+
+SessionAccept::~SessionAccept()
+{
+}
+
+void *
+SessionAccept::createNetAccept()
+{
+  return new NetAccept;
+}
diff --git a/iocore/net/Socks.cc b/iocore/net/Socks.cc
new file mode 100644
index 00000000..88b22e5c
--- /dev/null
+++ b/iocore/net/Socks.cc
@@ -0,0 +1,732 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  Socks.cc
+
+
+
+  This file contains the Socks client functionality. Previously this code was
+  duplicated in UnixNet.cc and NTNetProcessor.cc
+*/
+
+#include "P_Net.h"
+#include "I_Layout.h"
+#include <ts/IpMapConf.h>
+
+socks_conf_struct *g_socks_conf_stuff = 0;
+
+ClassAllocator<SocksEntry> socksAllocator("socksAllocator");
+
+void
+SocksEntry::init(ProxyMutex * m, SocksNetVC * vc, unsigned char socks_support, unsigned char ver)
+{
+  mutex = m;
+  buf = new_MIOBuffer();
+  reader = buf->alloc_reader();
+
+  socks_cmd = socks_support;
+
+  if (ver == SOCKS_DEFAULT_VERSION)
+    version = netProcessor.socks_conf_stuff->default_version;
+  else
+    version = ver;
+
+  SET_HANDLER(&SocksEntry::startEvent);
+
+  ats_ip_copy(&target_addr, vc->get_local_addr());
+
+#ifdef SOCKS_WITH_TS
+  req_data.hdr = 0;
+  req_data.hostname_str = 0;
+  req_data.api_info = 0;
+  req_data.xact_start = time(0);
+
+  assert(ats_is_ip4(&target_addr));
+  ats_ip_copy(&req_data.dest_ip, &target_addr);
+
+  //we dont have information about the source. set to destination's
+  ats_ip_copy(&req_data.src_ip, &target_addr);
+
+  server_params = SocksServerConfig::acquire();
+#endif
+
+  nattempts = 0;
+  findServer();
+
+  timeout = this_ethread()->schedule_in(this, HRTIME_SECONDS(netProcessor.socks_conf_stuff->server_connect_timeout));
+  write_done = false;
+}
+
+void
+SocksEntry::findServer()
+{
+  nattempts++;
+
+#ifdef SOCKS_WITH_TS
+  if (nattempts == 1) {
+    ink_assert(server_result.r == PARENT_UNDEFINED);
+    server_params->findParent(&req_data, &server_result);
+  } else {
+
+    socks_conf_struct *conf = netProcessor.socks_conf_stuff;
+    if ((nattempts - 1) % conf->per_server_connection_attempts)
+      return;                   //attempt again
+
+    server_params->markParentDown(&server_result);
+
+    if (nattempts > conf->connection_attempts)
+      server_result.r = PARENT_FAIL;
+    else
+      server_params->nextParent(&req_data, &server_result);
+  }
+
+  switch (server_result.r) {
+  case PARENT_SPECIFIED:
+    // Original was inet_addr, but should hostnames work?
+    // ats_ip_pton only supports numeric (because other clients
+    // explicitly want to avoid hostname lookups).
+    if (0 == ats_ip_pton(server_result.hostname, &server_addr)) {
+      ats_ip_port_cast(&server_addr) = htons(server_result.port);
+    } else {
+      Debug("SocksParent", "Invalid parent server specified %s", server_result.hostname);
+    }
+    break;
+
+  default:
+    ink_assert(!"Unexpected event");
+  case PARENT_DIRECT:
+  case PARENT_FAIL:
+    memset(&server_addr, 0, sizeof(server_addr));
+  }
+#else
+  if (nattempts > netProcessor.socks_conf_stuff->connection_attempts)
+    memset(&server_addr, 0, sizeof(server_addr));
+  else ats_ip_copy(&server_addr, &g_socks_conf_stuff->server_addr);
+#endif // SOCKS_WITH_TS
+
+  char buff[INET6_ADDRSTRLEN];
+  Debug("SocksParents", "findServer result: %s:%d",
+  ats_ip_ntop(&server_addr.sa, buff, sizeof(buff)),
+  ats_ip_port_host_order(&server_addr)
+  );
+}
+
+void
+SocksEntry::free()
+{
+  MUTEX_TRY_LOCK(lock, action_.mutex, this_ethread());
+  if (!lock) {
+    // Socks continuation share the user's lock
+    // so acquiring a lock shouldn't fail
+    ink_assert(0);
+    return;
+  }
+
+  if (timeout)
+    timeout->cancel(this);
+
+#ifdef SOCKS_WITH_TS
+  if (!lerrno && netVConnection && server_result.retry)
+    server_params->recordRetrySuccess(&server_result);
+#endif
+
+  if ((action_.cancelled || lerrno) && netVConnection)
+    netVConnection->do_io_close();
+
+  if (!action_.cancelled) {
+    if (lerrno) {
+      Debug("Socks", "retryevent: Sent errno %d to HTTP", lerrno);
+      NET_INCREMENT_DYN_STAT(socks_connections_unsuccessful_stat);
+      action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *)(intptr_t)(-lerrno));
+    } else {
+      netVConnection->do_io_read(this, 0, 0);
+      netVConnection->do_io_write(this, 0, 0);
+      netVConnection->action_ = action_;        //assign the original continuation
+      ats_ip_copy(&netVConnection->server_addr, &server_addr);
+      Debug("Socks", "Sent success to HTTP");
+      NET_INCREMENT_DYN_STAT(socks_connections_successful_stat);
+      action_.continuation->handleEvent(NET_EVENT_OPEN, netVConnection);
+    }
+  }
+#ifdef SOCKS_WITH_TS
+  SocksServerConfig::release(server_params);
+#endif
+
+  free_MIOBuffer(buf);
+  action_ = NULL;
+  mutex = NULL;
+  socksAllocator.free(this);
+}
+
+int
+SocksEntry::startEvent(int event, void *data)
+{
+  if (event == NET_EVENT_OPEN) {
+    netVConnection = (SocksNetVC *) data;
+
+    if (version == SOCKS5_VERSION)
+      auth_handler = &socks5BasicAuthHandler;
+
+    SET_HANDLER((SocksEntryHandler) & SocksEntry::mainEvent);
+    mainEvent(NET_EVENT_OPEN, data);
+  } else {
+    if (timeout) {
+      timeout->cancel(this);
+      timeout = NULL;
+    }
+
+    char buff[INET6_ADDRPORTSTRLEN];
+    Debug("Socks", "Failed to connect to %s", ats_ip_nptop(&server_addr.sa, buff, sizeof(buff)));
+
+    findServer();
+
+    if (!ats_is_ip(&server_addr)) {
+      Debug("Socks", "Unable to open connection to the SOCKS server");
+      lerrno = ESOCK_NO_SOCK_SERVER_CONN;
+      free();
+      return EVENT_CONT;
+    }
+
+    if (timeout) {
+      timeout->cancel(this);
+      timeout = 0;
+    }
+
+    if (netVConnection) {
+      netVConnection->do_io_close();
+      netVConnection = 0;
+    }
+
+    timeout = this_ethread()->schedule_in(this, HRTIME_SECONDS(netProcessor.socks_conf_stuff->server_connect_timeout));
+
+    write_done = false;
+
+    NetVCOptions options;
+    options.socks_support = NO_SOCKS;
+    netProcessor.connect_re(this, &server_addr.sa, &options);
+  }
+
+  return EVENT_CONT;
+}
+
+int
+SocksEntry::mainEvent(int event, void *data)
+{
+  int ret = EVENT_DONE;
+  int n_bytes = 0;
+  unsigned char *p;
+
+  switch (event) {
+
+  case NET_EVENT_OPEN:
+    buf->reset();
+    unsigned short ts;
+    p = (unsigned char *) buf->start();
+    ink_assert(netVConnection);
+
+    if (auth_handler) {
+      n_bytes = invokeSocksAuthHandler(auth_handler, SOCKS_AUTH_OPEN, p);
+    } else {
+
+      //Debug("Socks", " Got NET_EVENT_OPEN to SOCKS server\n");
+
+      p[n_bytes++] = version;
+      p[n_bytes++] = (socks_cmd == NORMAL_SOCKS) ? SOCKS_CONNECT : socks_cmd;
+      ts = ntohs(ats_ip_port_cast(&server_addr));
+
+      if (version == SOCKS5_VERSION) {
+        p[n_bytes++] = 0;       //Reserved
+        if (ats_is_ip4(&server_addr)) {
+          p[n_bytes++] = 1;       //IPv4 addr
+          memcpy(p + n_bytes,
+            &server_addr.sin.sin_addr,
+            4
+          );
+          n_bytes += 4;
+        } else if (ats_is_ip6(&server_addr)) {
+          p[n_bytes++] = 4;       //IPv6 addr
+          memcpy(p + n_bytes,
+            &server_addr.sin6.sin6_addr,
+            TS_IP6_SIZE
+          );
+          n_bytes += TS_IP6_SIZE;
+        } else {
+          Debug("Socks", "SOCKS supports only IP addresses.");
+        }
+      }
+
+      memcpy(p + n_bytes, &ts, 2);
+      n_bytes += 2;
+
+      if (version == SOCKS4_VERSION) {
+        if (ats_is_ip4(&server_addr)) {
+          //for socks4, ip addr is after the port
+          memcpy(p + n_bytes,
+            &server_addr.sin.sin_addr,
+            4
+          );
+          n_bytes += 4;
+
+          p[n_bytes++] = 0;       // NULL
+        } else {
+          Debug("Socks", "SOCKS v4 supports only IPv4 addresses.");
+        }
+      }
+
+    }
+
+    buf->fill(n_bytes);
+
+    if (!timeout) {
+      /* timeout would be already set when we come here from StartEvent() */
+      timeout = this_ethread()->schedule_in(this, HRTIME_SECONDS(netProcessor.socks_conf_stuff->socks_timeout));
+    }
+
+    netVConnection->do_io_write(this, n_bytes, reader, 0);
+    //Debug("Socks", "Sent the request to the SOCKS server\n");
+
+    ret = EVENT_CONT;
+    break;
+
+  case VC_EVENT_WRITE_READY:
+
+    ret = EVENT_CONT;
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    if (timeout) {
+      timeout->cancel(this);
+      timeout = NULL;
+      write_done = true;
+    }
+
+    buf->reset();               // Use the same buffer for a read now
+
+    if (auth_handler)
+      n_bytes = invokeSocksAuthHandler(auth_handler, SOCKS_AUTH_WRITE_COMPLETE, NULL);
+    else if (socks_cmd == NORMAL_SOCKS)
+      n_bytes = (version == SOCKS5_VERSION)
+        ? SOCKS5_REP_LEN : SOCKS4_REP_LEN;
+    else {
+      Debug("Socks", "Tunnelling the connection");
+      //let the client handle the response
+      free();
+      break;
+    }
+
+    timeout = this_ethread()->schedule_in(this, HRTIME_SECONDS(netProcessor.socks_conf_stuff->socks_timeout));
+
+    netVConnection->do_io_read(this, n_bytes, buf);
+
+    ret = EVENT_DONE;
+    break;
+
+  case VC_EVENT_READ_READY:
+    ret = EVENT_CONT;
+
+    if (version == SOCKS5_VERSION && auth_handler == NULL) {
+      VIO *vio = (VIO *) data;
+      p = (unsigned char *) buf->start();
+
+      if (vio->ndone >= 5) {
+        int reply_len;
+
+        switch (p[3]) {
+        case SOCKS_ATYPE_IPV4:
+          reply_len = 10;
+          break;
+        case SOCKS_ATYPE_FQHN:
+          reply_len = 7 + p[4];
+          break;
+        case SOCKS_ATYPE_IPV6:
+          Debug("Socks", "Who is using IPv6 Addr?");
+          reply_len = 22;
+          break;
+        default:
+          reply_len = INT_MAX;
+          Debug("Socks", "Illegal address type(%d) in Socks server", (int) p[3]);
+        }
+
+        if (vio->ndone >= reply_len) {
+          vio->nbytes = vio->ndone;
+          ret = EVENT_DONE;
+        }
+      }
+    }
+
+    if (ret == EVENT_CONT)
+      break;
+    // Fall Through
+  case VC_EVENT_READ_COMPLETE:
+    if (timeout) {
+      timeout->cancel(this);
+      timeout = NULL;
+    }
+    //Debug("Socks", "Successfully read the reply from the SOCKS server\n");
+    p = (unsigned char *) buf->start();
+
+    if (auth_handler) {
+      SocksAuthHandler temp = auth_handler;
+
+      if (invokeSocksAuthHandler(auth_handler, SOCKS_AUTH_READ_COMPLETE, p) < 0) {
+        lerrno = ESOCK_DENIED;
+        free();
+      } else if (auth_handler != temp) {
+        // here either authorization is done or there is another
+        // stage left.
+        mainEvent(NET_EVENT_OPEN, NULL);
+      }
+
+    } else {
+
+      bool success;
+      if (version == SOCKS5_VERSION) {
+        success = (p[0] == SOCKS5_VERSION && p[1] == SOCKS5_REQ_GRANTED);
+        Debug("Socks", "received reply of length %" PRId64" addr type %d", ((VIO *) data)->ndone, (int) p[3]);
+      } else
+        success = (p[0] == 0 && p[1] == SOCKS4_REQ_GRANTED);
+
+      //ink_assert(*(p) == 0);
+      if (!success) {           // SOCKS request failed
+        Debug("Socks", "Socks request denied %d", (int) *(p + 1));
+        lerrno = ESOCK_DENIED;
+      } else {
+        Debug("Socks", "Socks request successful %d", (int) *(p + 1));
+        lerrno = 0;
+      }
+      free();
+    }
+
+    break;
+
+  case EVENT_INTERVAL:
+    timeout = NULL;
+    if (write_done) {
+      lerrno = ESOCK_TIMEOUT;
+      free();
+      break;
+    }
+    /* else
+       This is server_connect_timeout. So we treat this as server being
+       down.
+       Should cancel any pending connect() action. Important on windows
+
+       fall through
+     */
+  case VC_EVENT_ERROR:
+    /*This is mostly ECONNREFUSED on Unix */
+    SET_HANDLER(&SocksEntry::startEvent);
+    startEvent(NET_EVENT_OPEN_FAILED, NULL);
+    break;
+
+  case VC_EVENT_EOS:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    Debug("Socks", "VC_EVENT error: %s", get_vc_event_name(event));
+    lerrno = ESOCK_NO_SOCK_SERVER_CONN;
+    free();
+    break;
+  default:
+    // BUGBUG:: could be active/inactivity timeout ...
+    ink_assert(!"bad case value");
+    Debug("Socks", "Bad Case/Net Error Event");
+    lerrno = ESOCK_NO_SOCK_SERVER_CONN;
+    free();
+    break;
+  }
+
+  return ret;
+}
+
+void
+loadSocksConfiguration(socks_conf_struct * socks_conf_stuff)
+{
+  int socks_config_fd = -1;
+  char config_pathname[PATH_NAME_MAX + 1];
+  char *socks_config_file = NULL;
+#ifdef SOCKS_WITH_TS
+  char *tmp;
+#endif
+
+  socks_conf_stuff->accept_enabled = 0; //initialize it INKqa08593
+  socks_conf_stuff->socks_needed = REC_ConfigReadInteger("proxy.config.socks.socks_needed");
+  if (!socks_conf_stuff->socks_needed) {
+    Debug("Socks", "Socks Turned Off");
+    return;
+  }
+
+  socks_conf_stuff->default_version = REC_ConfigReadInteger("proxy.config.socks.socks_version");
+  Debug("Socks", "Socks Version %d", socks_conf_stuff->default_version);
+
+  if (socks_conf_stuff->default_version != 4 && socks_conf_stuff->default_version != 5) {
+    Error("SOCKS Config: Unsupported Version: %d. SOCKS Turned off", socks_conf_stuff->default_version);
+    goto error;
+  }
+
+  socks_conf_stuff->server_connect_timeout = REC_ConfigReadInteger("proxy.config.socks.server_connect_timeout");
+  socks_conf_stuff->socks_timeout = REC_ConfigReadInteger("proxy.config.socks.socks_timeout");
+  Debug("Socks", "server connect timeout: %d socks respnonse timeout %d",
+        socks_conf_stuff->server_connect_timeout, socks_conf_stuff->socks_timeout);
+
+  socks_conf_stuff->per_server_connection_attempts =
+    REC_ConfigReadInteger("proxy.config.socks.per_server_connection_attempts");
+  socks_conf_stuff->connection_attempts = REC_ConfigReadInteger("proxy.config.socks.connection_attempts");
+
+  socks_conf_stuff->accept_enabled = REC_ConfigReadInteger("proxy.config.socks.accept_enabled");
+  socks_conf_stuff->accept_port = REC_ConfigReadInteger("proxy.config.socks.accept_port");
+  socks_conf_stuff->http_port = REC_ConfigReadInteger("proxy.config.socks.http_port");
+  Debug("SocksProxy", "Read SocksProxy info: accept_enabled = %d "
+        "accept_port = %d http_port = %d", socks_conf_stuff->accept_enabled,
+        socks_conf_stuff->accept_port, socks_conf_stuff->http_port);
+
+#ifdef SOCKS_WITH_TS
+  SocksServerConfig::startup();
+#endif
+
+  socks_config_file = REC_ConfigReadString("proxy.config.socks.socks_config_file");
+
+  if (!socks_config_file) {
+    Error("SOCKS Config: could not read config file name. SOCKS Turned off");
+    goto error;
+  }
+
+  Layout::relative_to(config_pathname, sizeof(config_pathname),
+                      Layout::get()->sysconfdir, socks_config_file);
+  ats_free(socks_config_file);
+  Debug("Socks", "Socks Config File: %s", config_pathname);
+
+  socks_config_fd =::open(config_pathname, O_RDONLY);
+
+  if (socks_config_fd < 0) {
+    Error("SOCKS Config: could not open config file '%s'. SOCKS Turned off", config_pathname);
+    goto error;
+  }
+#ifdef SOCKS_WITH_TS
+  tmp = Load_IpMap_From_File(
+    &socks_conf_stuff->ip_map,
+    socks_config_fd,
+    "no_socks"
+  );
+//  tmp = socks_conf_stuff->ip_range.read_table_from_file(socks_config_fd, "no_socks");
+
+  if (tmp) {
+    Error("SOCKS Config: Error while reading ip_range: %s.", tmp);
+    ats_free(tmp);
+    goto error;
+  }
+#endif
+
+  if (loadSocksAuthInfo(socks_config_fd, socks_conf_stuff) != 0) {
+    Error("SOCKS Config: Error while reading Socks auth info");
+    goto error;
+  }
+  Debug("Socks", "Socks Turned on");
+  ::close(socks_config_fd);
+
+  return;
+error:
+
+  socks_conf_stuff->socks_needed = 0;
+  socks_conf_stuff->accept_enabled = 0;
+  if (socks_config_fd >= 0)
+    ::close(socks_config_fd);
+
+}
+
+int
+loadSocksAuthInfo(int fd, socks_conf_struct * socks_stuff)
+{
+  char c = '\0';
+  char line[256] = { 0 };       // initialize all chars to nil
+  char user_name[256] = { 0 };
+  char passwd[256] = { 0 };
+
+  if (lseek(fd, 0, SEEK_SET) < 0) {
+    Warning("Can not seek on Socks configuration file\n");
+    return -1;
+  }
+
+  bool end_of_file = false;
+  do {
+    int n = 0, rc;
+    while (((rc = read(fd, &c, 1)) == 1) && (c != '\n') && (n < 254))
+      line[n++] = c;
+    if (rc <= 0)
+      end_of_file = true;
+    line[n] = '\0';
+
+    // coverity[secure_coding]
+    rc = sscanf(line, " auth u %255s %255s ", user_name, passwd);
+    if (rc >= 2) {
+      int len1 = strlen(user_name);
+      int len2 = strlen(passwd);
+
+      Debug("Socks", "Read user_name(%s) and passwd(%s) from config file", user_name, passwd);
+
+      socks_stuff->user_name_n_passwd_len = len1 + len2 + 2;
+
+      char *ptr = (char *)ats_malloc(socks_stuff->user_name_n_passwd_len);
+      ptr[0] = len1;
+      memcpy(&ptr[1], user_name, len1);
+      ptr[len1 + 1] = len2;
+      memcpy(&ptr[len1 + 2], passwd, len2);
+
+      socks_stuff->user_name_n_passwd = ptr;
+
+      return 0;
+    }
+  } while (!end_of_file);
+
+  return 0;
+}
+
+int
+socks5BasicAuthHandler(int event, unsigned char *p, void (**h_ptr) (void))
+{
+  //for more info on Socks5 see RFC 1928
+  int ret = 0;
+  char *pass_phrase = netProcessor.socks_conf_stuff->user_name_n_passwd;
+
+  switch (event) {
+
+  case SOCKS_AUTH_OPEN:
+    p[ret++] = SOCKS5_VERSION;  //version
+    p[ret++] = (pass_phrase) ? 2 : 1;   //#Methods
+    p[ret++] = 0;               //no authentication
+    if (pass_phrase)
+      p[ret++] = 2;
+
+    break;
+
+  case SOCKS_AUTH_WRITE_COMPLETE:
+    //return number of bytes to read
+    ret = 2;
+    break;
+
+  case SOCKS_AUTH_READ_COMPLETE:
+
+    if (p[0] == SOCKS5_VERSION) {
+      switch (p[1]) {
+
+      case 0:                  // no authentication required
+        Debug("Socks", "No authentication required for Socks server");
+        //make sure this is ok for us. right now it is always ok for us.
+        *h_ptr = NULL;
+        break;
+
+      case 2:
+        Debug("Socks", "Socks server wants username/passwd");
+        if (!pass_phrase) {
+          Debug("Socks", "Buggy Socks server: asks for username/passwd " "when not supplied as an option");
+          ret = -1;
+          *h_ptr = NULL;
+        } else
+          *(SocksAuthHandler *) h_ptr = &socks5PasswdAuthHandler;
+
+        break;
+
+      case 0xff:
+        Debug("Socks", "None of the Socks authentcations is acceptable " "to the server");
+        *h_ptr = NULL;
+        ret = -1;
+        break;
+
+      default:
+        Debug("Socks", "Unexpected Socks auth method (%d) from the server", (int) p[1]);
+        ret = -1;
+        break;
+      }
+    } else {
+      Debug("Socks", "authEvent got wrong version %d from the Socks server", (int) p[0]);
+      ret = -1;
+    }
+
+    break;
+
+  default:
+    //This should be inpossible
+    ink_assert(!"bad case value");
+    ret = -1;
+    break;
+  }
+  return ret;
+}
+
+int
+socks5PasswdAuthHandler(int event, unsigned char *p, void (**h_ptr) (void))
+{
+  //for more info see RFC 1929
+  int ret = 0;
+  char *pass_phrase;
+  int pass_len;
+
+  switch (event) {
+
+  case SOCKS_AUTH_OPEN:
+    pass_phrase = netProcessor.socks_conf_stuff->user_name_n_passwd;
+    pass_len = netProcessor.socks_conf_stuff->user_name_n_passwd_len;
+    ink_assert(pass_phrase);
+
+    p[0] = 1;                   //version
+    memcpy(&p[1], pass_phrase, pass_len);
+
+    ret = 1 + pass_len;
+    break;
+
+  case SOCKS_AUTH_WRITE_COMPLETE:
+    //return number of bytes to read
+    ret = 2;
+    break;
+
+  case SOCKS_AUTH_READ_COMPLETE:
+
+    //if (p[0] == 1) { // skip this. its not clear what this should be.
+    // NEC thinks it is 5 RFC seems to indicate 1.
+    switch (p[1]) {
+
+    case 0:
+      Debug("Socks", "Username/Passwd succeded");
+      *h_ptr = NULL;
+      break;
+
+    default:
+      Debug("Socks", "Username/Passwd authentication failed ret_code: %d", (int) p[1]);
+      ret = -1;
+    }
+    //}
+    //else {
+    //  Debug("Socks", "authPassEvent got wrong version %d from "
+    //        "Socks server\n", (int)p[0]);
+    //  ret = -1;
+    //}
+
+    break;
+
+  default:
+    ink_assert(!"bad case value");
+    ret = -1;
+    break;
+  }
+  return ret;
+}
diff --git a/iocore/net/UDPIOEvent.cc b/iocore/net/UDPIOEvent.cc
new file mode 100644
index 00000000..0309d909
--- /dev/null
+++ b/iocore/net/UDPIOEvent.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+ClassAllocator<UDPIOEvent> UDPIOEventAllocator("UDPIOEventAllocator");
diff --git a/iocore/net/UnixConnection.cc b/iocore/net/UnixConnection.cc
new file mode 100644
index 00000000..ae1f5e71
--- /dev/null
+++ b/iocore/net/UnixConnection.cc
@@ -0,0 +1,385 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  Connections
+
+**************************************************************************/
+#include "P_Net.h"
+
+#define SET_NO_LINGER
+// set in the OS
+// #define RECV_BUF_SIZE            (1024*64)
+// #define SEND_BUF_SIZE            (1024*64)
+#define FIRST_RANDOM_PORT        16000
+#define LAST_RANDOM_PORT         32000
+
+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
+
+#if TS_USE_TPROXY
+#if !defined(IP_TRANSPARENT)
+unsigned int const IP_TRANSPARENT = 19;
+#endif
+#endif
+
+//
+// Functions
+//
+int
+Connection::setup_mc_send(
+  sockaddr const* mc_addr,
+  sockaddr const* my_addr,
+  bool non_blocking, unsigned char mc_ttl, bool mc_loopback, Continuation * c
+) {
+  (void) c;
+  ink_assert(fd == NO_FD);
+  int res = 0;
+  int enable_reuseaddr = 1;
+  in_addr_t mc_if = ats_ip4_addr_cast(my_addr);
+
+  if ((res = socketManager.mc_socket(my_addr->sa_family, SOCK_DGRAM, 0, non_blocking)) < 0)
+    goto Lerror;
+
+  fd = res;
+
+  if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &enable_reuseaddr, sizeof(enable_reuseaddr)) < 0)) {
+    goto Lerror;
+  }
+
+  if ((res = socketManager.ink_bind(fd, my_addr, ats_ip_size(my_addr), IPPROTO_UDP)) < 0) {
+    goto Lerror;
+  }
+
+  ats_ip_copy(&addr, mc_addr);
+
+#ifdef SET_CLOSE_ON_EXEC
+  if ((res = safe_fcntl(fd, F_SETFD, 1)) < 0)
+    goto Lerror;
+#endif
+
+  if (non_blocking)
+    if ((res = safe_nonblocking(fd)) < 0)
+      goto Lerror;
+
+  // Set MultiCast TTL to specified value
+  if ((res = safe_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, (char *) &mc_ttl, sizeof(mc_ttl)) < 0))
+    goto Lerror;
+
+  // Set MultiCast Interface to specified value
+  if ((res = safe_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, (char *) &mc_if, sizeof(mc_if)) < 0))
+    goto Lerror;
+
+  // Disable MultiCast loopback if requested
+  if (!mc_loopback) {
+    char loop = 0;
+
+    if ((res = safe_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, (char *) &loop, sizeof(loop)) < 0))
+      goto Lerror;
+  }
+  return 0;
+
+Lerror:
+  if (fd != NO_FD)
+    close();
+  return res;
+}
+
+
+int
+Connection::setup_mc_receive(
+  sockaddr const* mc_addr,
+  sockaddr const* my_addr,
+  bool non_blocking, Connection * sendChan, Continuation * c
+) {
+  ink_assert(fd == NO_FD);
+  (void) sendChan;
+  (void) c;
+  int res = 0;
+  int enable_reuseaddr = 1;
+  IpAddr inaddr_any(INADDR_ANY);
+
+  if ((res = socketManager.socket(mc_addr->sa_family, SOCK_DGRAM, 0)) < 0)
+    goto Lerror;
+
+  fd = res;
+
+#ifdef SET_CLOSE_ON_EXEC
+  if ((res = safe_fcntl(fd, F_SETFD, 1)) < 0)
+    goto Lerror;
+#endif
+
+  if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &enable_reuseaddr, sizeof(enable_reuseaddr)) < 0))
+    goto Lerror;
+
+  addr.assign(inaddr_any, ats_ip_port_cast(mc_addr));
+
+  if ((res = socketManager.ink_bind(fd, &addr.sa, ats_ip_size(&addr.sa), IPPROTO_TCP)) < 0)
+    goto Lerror;
+
+  if (non_blocking)
+    if ((res = safe_nonblocking(fd)) < 0)
+      goto Lerror;
+
+  if (ats_is_ip4(&addr)) {
+    struct ip_mreq mc_request;
+    // Add ourselves to the MultiCast group
+    mc_request.imr_multiaddr.s_addr = ats_ip4_addr_cast(mc_addr);
+    mc_request.imr_interface.s_addr = ats_ip4_addr_cast(my_addr);
+
+    if ((res = safe_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char *) &mc_request, sizeof(mc_request)) < 0))
+      goto Lerror;
+  }
+  return 0;
+
+Lerror:
+  if (fd != NO_FD)
+    close();
+  return res;
+}
+
+namespace {
+  /** Struct to make cleaning up resources easier.
+
+      By default, the @a method is invoked on the @a object when
+      this object is destructed. This can be prevented by calling
+      the @c reset method.
+
+      This is not overly useful in the allocate, check, return case
+      but very handy if there are
+      - multiple resources (each can have its own cleaner)
+      - multiple checks against the resource
+      In such cases, rather than trying to track all the resources
+      that might need cleaned up, you can set up a cleaner at allocation
+      and only have to deal with them on success, which is generally
+      singular.
+
+      @code
+      self::some_method (...) {
+        /// allocate resource
+        cleaner<self> clean_up(this, &self::cleanup);
+        // modify or check the resource
+        if (fail) return FAILURE; // cleanup() is called
+        /// success!
+        clean_up.reset(); // cleanup() not called after this
+        return SUCCESS;
+      @endcode
+   */
+  template <typename T> struct cleaner {
+    T* obj; ///< Object instance.
+    typedef void (T::*method)(); ///< Method signature.
+    method m;
+
+    cleaner(T* _obj, method  _method) : obj(_obj), m(_method) {}
+    ~cleaner() { if (obj) (obj->*m)(); }
+    void reset() { obj = 0; }
+  };
+}
+
+/** Default options.
+
+    @internal This structure is used to reduce the number of places in
+    which the defaults are set. Originally the argument defaulted to
+    @c NULL which meant that the defaults had to be encoded in any
+    methods that used it as well as the @c NetVCOptions
+    constructor. Now they are controlled only in the latter and not in
+    any of the methods. This makes handling global default values
+    (such as @c RECV_BUF_SIZE) more robust. It doesn't have to be
+    checked in the method, only in the @c NetVCOptions constructor.
+
+    The methods are simpler because they never have to check for the
+    presence of the options, yet the clients aren't inconvenienced
+    because a default value for the argument is provided. Further,
+    clients can pass temporaries and not have to declare a variable in
+    order to tweak options.
+ */
+NetVCOptions const Connection::DEFAULT_OPTIONS;
+
+int
+Connection::open(NetVCOptions const& opt)
+{
+  ink_assert(fd == NO_FD);
+  int enable_reuseaddr = 1; // used for sockopt setting
+  int res = 0; // temp result
+  IpEndpoint local_addr;
+  sock_type = NetVCOptions::USE_UDP == opt.ip_proto
+    ? SOCK_DGRAM
+    : SOCK_STREAM;
+  int family;
+
+  // Need to do address calculations first, so we can determine the
+  // address family for socket creation.
+  ink_zero(local_addr);
+
+  bool is_any_address = false;
+  if (NetVCOptions::FOREIGN_ADDR == opt.addr_binding ||
+    NetVCOptions::INTF_ADDR == opt.addr_binding
+  ) {
+    // Same for now, transparency for foreign addresses must be handled
+    // *after* the socket is created, and we need to do this calculation
+    // before the socket to get the IP family correct.
+    ink_release_assert(opt.local_ip.isValid());
+    local_addr.assign(opt.local_ip, htons(opt.local_port));
+    family = opt.local_ip.family();
+  } else {
+    // No local address specified, so use family option if possible.
+    family = ats_is_ip(opt.ip_family) ? opt.ip_family : AF_INET;
+    local_addr.setToAnyAddr(family);
+    is_any_address = true;
+    local_addr.port() = htons(opt.local_port);
+  }
+
+  res = socketManager.socket(family, sock_type, 0);
+  if (-1 == res) return -errno;
+
+  fd = res;
+  // mark fd for close until we succeed.
+  cleaner<Connection> cleanup(this, &Connection::_cleanup);
+
+  // Try setting the various socket options, if requested.
+
+  if (-1 == safe_setsockopt(fd,
+                            SOL_SOCKET,
+                            SO_REUSEADDR,
+                            reinterpret_cast<char *>(&enable_reuseaddr),
+                            sizeof(enable_reuseaddr)))
+    return -errno;
+
+  if (NetVCOptions::FOREIGN_ADDR == opt.addr_binding) {
+    static char const * const DEBUG_TEXT = "::open setsockopt() IP_TRANSPARENT";
+#if TS_USE_TPROXY
+    int value = 1;
+    if (-1 == safe_setsockopt(fd, SOL_IP, TS_IP_TRANSPARENT,
+                              reinterpret_cast<char*>(&value), sizeof(value)
+                              )) {
+      Debug("socket", "%s - fail %d:%s", DEBUG_TEXT, errno, strerror(errno));
+      return -errno;
+    } else {
+      Debug("socket", "%s set", DEBUG_TEXT);
+    }
+#else
+    Debug("socket", "%s - requested but TPROXY not configured", DEBUG_TEXT);
+#endif
+  }
+
+  if (!opt.f_blocking_connect && -1 == safe_nonblocking(fd))
+    return -errno;
+
+  if (opt.socket_recv_bufsize > 0) {
+    if (socketManager.set_rcvbuf_size(fd, opt.socket_recv_bufsize)) {
+      // Round down until success
+      int rbufsz = ROUNDUP(opt.socket_recv_bufsize, 1024);
+      while (rbufsz && !socketManager.set_rcvbuf_size(fd, rbufsz))
+        rbufsz -= 1024;
+      Debug("socket", "::open: recv_bufsize = %d of %d\n", rbufsz, opt.socket_recv_bufsize);
+    }
+  }
+  if (opt.socket_send_bufsize > 0) {
+    if (socketManager.set_sndbuf_size(fd, opt.socket_send_bufsize)) {
+      // Round down until success
+      int sbufsz = ROUNDUP(opt.socket_send_bufsize, 1024);
+      while (sbufsz && !socketManager.set_sndbuf_size(fd, sbufsz))
+        sbufsz -= 1024;
+      Debug("socket", "::open: send_bufsize = %d of %d\n", sbufsz, opt.socket_send_bufsize);
+    }
+  }
+
+  // apply dynamic options
+  apply_options(opt);
+
+  if(local_addr.port() || !is_any_address) {
+    if (-1 == socketManager.ink_bind(fd, &local_addr.sa, ats_ip_size(&local_addr.sa)))
+      return -errno;
+  }
+
+  cleanup.reset();
+  is_bound = true;
+  return 0;
+}
+
+int
+Connection::connect(sockaddr const* target, NetVCOptions const& opt) {
+  ink_assert(fd != NO_FD);
+  ink_assert(is_bound);
+  ink_assert(!is_connected);
+
+  int res;
+
+  this->setRemote(target);
+
+  cleaner<Connection> cleanup(this, &Connection::_cleanup); // mark for close until we succeed.
+
+  res = ::connect(fd, target, ats_ip_size(target));
+
+  // It's only really an error if either the connect was blocking
+  // or it wasn't blocking and the error was other than EINPROGRESS.
+  // (Is EWOULDBLOCK ok? Does that start the connect?)
+  // We also want to handle the cases where the connect blocking
+  // and IO blocking differ, by turning it on or off as needed.
+  if (-1 == res 
+      && (opt.f_blocking_connect
+          || ! (EINPROGRESS == errno || EWOULDBLOCK == errno))) {
+    return -errno;
+  } else if (opt.f_blocking_connect && !opt.f_blocking) {
+    if (-1 == safe_nonblocking(fd)) return -errno;
+  } else if (!opt.f_blocking_connect && opt.f_blocking) {
+    if (-1 == safe_blocking(fd)) return -errno;
+  }
+
+  cleanup.reset();
+  is_connected = true;
+  return 0;
+}
+
+void
+Connection::_cleanup()
+{
+  this->close();
+}
+
+void
+Connection::apply_options(NetVCOptions const& opt)
+{
+  // Set options which can be changed after a connection is established
+  // ignore other changes
+  if (SOCK_STREAM == sock_type) {
+    if (opt.sockopt_flags & NetVCOptions::SOCK_OPT_NO_DELAY) {
+      safe_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int));
+      Debug("socket", "::open: setsockopt() TCP_NODELAY on socket");
+    }
+    if (opt.sockopt_flags & NetVCOptions::SOCK_OPT_KEEP_ALIVE) {
+      safe_setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int));
+      Debug("socket", "::open: setsockopt() SO_KEEPALIVE on socket");
+    }
+  }
+
+#if TS_HAS_SO_MARK
+  uint32_t mark = opt.packet_mark;
+  safe_setsockopt(fd, SOL_SOCKET, SO_MARK, reinterpret_cast<char *>(&mark), sizeof(uint32_t));
+#endif
+
+#if TS_HAS_IP_TOS
+  uint32_t tos = opt.packet_tos;
+  safe_setsockopt(fd, IPPROTO_IP, IP_TOS, reinterpret_cast<char *>(&tos), sizeof(uint32_t));
+#endif
+
+}
diff --git a/iocore/net/UnixNet.cc b/iocore/net/UnixNet.cc
new file mode 100644
index 00000000..c738a6ab
--- /dev/null
+++ b/iocore/net/UnixNet.cc
@@ -0,0 +1,448 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+
+ink_hrtime last_throttle_warning;
+ink_hrtime last_shedding_warning;
+ink_hrtime emergency_throttle_time;
+int net_connections_throttle;
+int fds_throttle;
+int fds_limit = 8000;
+ink_hrtime last_transient_accept_error;
+
+extern "C" void fd_reify(struct ev_loop *);
+
+
+#ifndef INACTIVITY_TIMEOUT
+// INKqa10496
+// One Inactivity cop runs on each thread once every second and
+// loops through the list of NetVCs and calls the timeouts
+class InactivityCop : public Continuation {
+public:
+  InactivityCop(ProxyMutex *m):Continuation(m), default_inactivity_timeout(0) {
+    SET_HANDLER(&InactivityCop::check_inactivity);
+    REC_ReadConfigInteger(default_inactivity_timeout, "proxy.config.net.default_inactivity_timeout");
+    Debug("inactivity_cop", "default inactivity timeout is set to: %d", default_inactivity_timeout);
+  }
+  int check_inactivity(int event, Event *e) {
+    (void) event;
+    ink_hrtime now = ink_get_hrtime();
+    NetHandler *nh = get_NetHandler(this_ethread());
+    // Copy the list and use pop() to catch any closes caused by callbacks.
+    forl_LL(UnixNetVConnection, vc, nh->open_list) {
+      if (vc->thread == this_ethread())
+        nh->cop_list.push(vc);
+    }
+    while (UnixNetVConnection *vc = nh->cop_list.pop()) {
+      // If we cannot get the lock don't stop just keep cleaning
+      MUTEX_TRY_LOCK(lock, vc->mutex, this_ethread());
+      if (!lock.lock_acquired) {
+       NET_INCREMENT_DYN_STAT(inactivity_cop_lock_acquire_failure_stat);
+       continue;
+      }
+
+      if (vc->closed) {
+        close_UnixNetVConnection(vc, e->ethread);
+        continue;
+      }
+
+      // set a default inactivity timeout if one is not set
+      if (vc->next_inactivity_timeout_at == 0 && default_inactivity_timeout > 0) {
+        Debug("inactivity_cop", "vc: %p inactivity timeout not set, setting a default of %d", vc, default_inactivity_timeout);
+        vc->set_inactivity_timeout(HRTIME_SECONDS(default_inactivity_timeout));
+      } else {
+        Debug("inactivity_cop_verbose", "vc: %p timeout at: %" PRId64 " timeout in: %" PRId64, vc, ink_hrtime_to_sec(vc->next_inactivity_timeout_at),
+            ink_hrtime_to_sec(vc->inactivity_timeout_in));
+      }
+
+      if (vc->next_inactivity_timeout_at && vc->next_inactivity_timeout_at < now)
+        vc->handleEvent(EVENT_IMMEDIATE, e);
+    }
+    return 0;
+  }
+private:
+  int default_inactivity_timeout;  // only used when one is not set for some bad reason
+};
+#endif
+
+PollCont::PollCont(ProxyMutex *m, int pt):Continuation(m), net_handler(NULL), nextPollDescriptor(NULL), poll_timeout(pt) {
+  pollDescriptor = new PollDescriptor;
+  pollDescriptor->init();
+  SET_HANDLER(&PollCont::pollEvent);
+}
+
+PollCont::PollCont(ProxyMutex *m, NetHandler *nh, int pt):Continuation(m), net_handler(nh), nextPollDescriptor(NULL), poll_timeout(pt)
+{
+  pollDescriptor = new PollDescriptor;
+  pollDescriptor->init();
+  SET_HANDLER(&PollCont::pollEvent);
+}
+
+PollCont::~PollCont() {
+  delete pollDescriptor;
+  if (nextPollDescriptor != NULL) {
+    delete nextPollDescriptor;
+  }
+}
+
+//
+// PollCont continuation which does the epoll_wait
+// and stores the resultant events in ePoll_Triggered_Events
+//
+int
+PollCont::pollEvent(int event, Event *e) {
+  (void) event;
+  (void) e;
+
+  if (likely(net_handler)) {
+    /* checking to see whether there are connections on the ready_queue (either read or write) that need processing [ebalsa] */
+    if (likely
+        (!net_handler->read_ready_list.empty() || !net_handler->write_ready_list.empty() ||
+         !net_handler->read_enable_list.empty() || !net_handler->write_enable_list.empty())) {
+      NetDebug("iocore_net_poll", "rrq: %d, wrq: %d, rel: %d, wel: %d",
+               net_handler->read_ready_list.empty(),
+               net_handler->write_ready_list.empty(), net_handler->read_enable_list.empty(),
+               net_handler->write_enable_list.empty());
+      poll_timeout = 0;         //poll immediately returns -- we have triggered stuff to process right now
+    } else {
+      poll_timeout = net_config_poll_timeout;
+    }
+  }
+  // wait for fd's to tigger, or don't wait if timeout is 0
+#if TS_USE_EPOLL
+  pollDescriptor->result = epoll_wait(pollDescriptor->epoll_fd,
+                                      pollDescriptor->ePoll_Triggered_Events, POLL_DESCRIPTOR_SIZE, poll_timeout);
+  NetDebug("iocore_net_poll", "[PollCont::pollEvent] epoll_fd: %d, timeout: %d, results: %d", pollDescriptor->epoll_fd, poll_timeout,
+           pollDescriptor->result);
+#elif TS_USE_KQUEUE
+  struct timespec tv;
+  tv.tv_sec = poll_timeout / 1000;
+  tv.tv_nsec = 1000000 * (poll_timeout % 1000);
+  pollDescriptor->result = kevent(pollDescriptor->kqueue_fd, NULL, 0,
+                                  pollDescriptor->kq_Triggered_Events,
+                                  POLL_DESCRIPTOR_SIZE,
+                                  &tv);
+  NetDebug("iocore_net_poll", "[PollCont::pollEvent] kueue_fd: %d, timeout: %d, results: %d", pollDescriptor->kqueue_fd, poll_timeout,
+           pollDescriptor->result);
+#elif TS_USE_PORT
+  int retval;
+  timespec_t ptimeout;
+  ptimeout.tv_sec = poll_timeout / 1000;
+  ptimeout.tv_nsec = 1000000 * (poll_timeout % 1000);
+  unsigned nget = 1;
+  if((retval = port_getn(pollDescriptor->port_fd,
+                         pollDescriptor->Port_Triggered_Events,
+                         POLL_DESCRIPTOR_SIZE, &nget, &ptimeout)) < 0) {
+    pollDescriptor->result = 0;
+    switch(errno) {
+    case EINTR:
+    case EAGAIN:
+    case ETIME:
+      if (nget > 0) {
+        pollDescriptor->result = (int)nget;
+      }
+      break;
+    default:
+      ink_assert(!"unhandled port_getn() case:");
+      break;
+    }
+  } else {
+    pollDescriptor->result = (int)nget;
+  }
+  NetDebug("iocore_net_poll", "[PollCont::pollEvent] %d[%s]=port_getn(%d,%p,%d,%d,%d),results(%d)",
+           retval,retval < 0 ? strerror(errno) : "ok",
+           pollDescriptor->port_fd, pollDescriptor->Port_Triggered_Events,
+           POLL_DESCRIPTOR_SIZE, nget, poll_timeout, pollDescriptor->result);
+#else
+#error port me
+#endif
+  return EVENT_CONT;
+}
+
+static void
+net_signal_hook_callback(EThread *thread) {
+#if HAVE_EVENTFD
+  uint64_t counter;
+  ATS_UNUSED_RETURN(read(thread->evfd, &counter, sizeof(uint64_t)));
+#elif TS_USE_PORT
+  /* Nothing to drain or do */
+#else
+  char dummy[1024];
+  ATS_UNUSED_RETURN(read(thread->evpipe[0], &dummy[0], 1024));
+#endif
+}
+
+static void
+net_signal_hook_function(EThread *thread) {
+#if HAVE_EVENTFD
+  uint64_t counter = 1;
+  ATS_UNUSED_RETURN(write(thread->evfd, &counter, sizeof(uint64_t)));
+#elif TS_USE_PORT
+  PollDescriptor *pd = get_PollDescriptor(thread);
+  ATS_UNUSED_RETURN(port_send(pd->port_fd, 0, thread->ep));
+#else
+  char dummy = 1;
+  ATS_UNUSED_RETURN(write(thread->evpipe[1], &dummy, 1));
+#endif
+}
+
+void
+initialize_thread_for_net(EThread *thread)
+{
+  new((ink_dummy_for_new *) get_NetHandler(thread)) NetHandler();
+  new((ink_dummy_for_new *) get_PollCont(thread)) PollCont(thread->mutex, get_NetHandler(thread));
+  get_NetHandler(thread)->mutex = new_ProxyMutex();
+  PollCont *pc = get_PollCont(thread);
+  PollDescriptor *pd = pc->pollDescriptor;
+
+  thread->schedule_imm(get_NetHandler(thread));
+
+#ifndef INACTIVITY_TIMEOUT
+  InactivityCop *inactivityCop = new InactivityCop(get_NetHandler(thread)->mutex);
+  thread->schedule_every(inactivityCop, HRTIME_SECONDS(1));
+#endif
+
+  thread->signal_hook = net_signal_hook_function;
+  thread->ep = (EventIO*)ats_malloc(sizeof(EventIO));
+  thread->ep->type = EVENTIO_ASYNC_SIGNAL;
+#if HAVE_EVENTFD
+  thread->ep->start(pd, thread->evfd, 0, EVENTIO_READ);
+#else
+  thread->ep->start(pd, thread->evpipe[0], 0, EVENTIO_READ);
+#endif
+}
+
+// NetHandler method definitions
+
+NetHandler::NetHandler():Continuation(NULL), trigger_event(0)
+{
+  SET_HANDLER((NetContHandler) & NetHandler::startNetEvent);
+}
+
+//
+// Initialization here, in the thread in which we will be executing
+// from now on.
+//
+int
+NetHandler::startNetEvent(int event, Event *e)
+{
+  (void) event;
+  SET_HANDLER((NetContHandler) & NetHandler::mainNetEvent);
+  e->schedule_every(NET_PERIOD);
+  trigger_event = e;
+  return EVENT_CONT;
+}
+
+//
+// Move VC's enabled on a different thread to the ready list
+//
+void
+NetHandler::process_enabled_list(NetHandler *nh)
+{
+  UnixNetVConnection *vc = NULL;
+
+  SListM(UnixNetVConnection, NetState, read, enable_link) rq(nh->read_enable_list.popall());
+  while ((vc = rq.pop())) {
+    vc->ep.modify(EVENTIO_READ);
+    vc->ep.refresh(EVENTIO_READ);
+    vc->read.in_enabled_list = 0;
+    if ((vc->read.enabled && vc->read.triggered) || vc->closed)
+      nh->read_ready_list.in_or_enqueue(vc);
+  }
+
+  SListM(UnixNetVConnection, NetState, write, enable_link) wq(nh->write_enable_list.popall());
+  while ((vc = wq.pop())) {
+    vc->ep.modify(EVENTIO_WRITE);
+    vc->ep.refresh(EVENTIO_WRITE);
+    vc->write.in_enabled_list = 0;
+    if ((vc->write.enabled && vc->write.triggered) || vc->closed)
+      nh->write_ready_list.in_or_enqueue(vc);
+  }
+}
+
+
+//
+// The main event for NetHandler
+// This is called every NET_PERIOD, and handles all IO operations scheduled
+// for this period.
+//
+int
+NetHandler::mainNetEvent(int event, Event *e)
+{
+  ink_assert(trigger_event == e && (event == EVENT_INTERVAL || event == EVENT_POLL));
+  (void) event;
+  (void) e;
+  EventIO *epd = NULL;
+  int poll_timeout = net_config_poll_timeout;
+
+  NET_INCREMENT_DYN_STAT(net_handler_run_stat);
+
+  process_enabled_list(this);
+  if (likely(!read_ready_list.empty() || !write_ready_list.empty() || !read_enable_list.empty() || !write_enable_list.empty()))
+    poll_timeout = 0; // poll immediately returns -- we have triggered stuff to process right now
+  else
+    poll_timeout = net_config_poll_timeout;
+
+  PollDescriptor *pd = get_PollDescriptor(trigger_event->ethread);
+  UnixNetVConnection *vc = NULL;
+#if TS_USE_EPOLL
+  pd->result = epoll_wait(pd->epoll_fd, pd->ePoll_Triggered_Events, POLL_DESCRIPTOR_SIZE, poll_timeout);
+  NetDebug("iocore_net_main_poll", "[NetHandler::mainNetEvent] epoll_wait(%d,%d), result=%d", pd->epoll_fd,poll_timeout,pd->result);
+#elif TS_USE_KQUEUE
+  struct timespec tv;
+  tv.tv_sec = poll_timeout / 1000;
+  tv.tv_nsec = 1000000 * (poll_timeout % 1000);
+  pd->result = kevent(pd->kqueue_fd, NULL, 0, pd->kq_Triggered_Events, POLL_DESCRIPTOR_SIZE, &tv);
+  NetDebug("iocore_net_main_poll", "[NetHandler::mainNetEvent] kevent(%d,%d), result=%d", pd->kqueue_fd,poll_timeout,pd->result);
+#elif TS_USE_PORT
+  int retval;
+  timespec_t ptimeout;
+  ptimeout.tv_sec = poll_timeout / 1000;
+  ptimeout.tv_nsec = 1000000 * (poll_timeout % 1000);
+  unsigned nget = 1;
+  if((retval = port_getn(pd->port_fd, pd->Port_Triggered_Events, POLL_DESCRIPTOR_SIZE, &nget, &ptimeout)) < 0) {
+    pd->result = 0;
+    switch(errno) {
+    case EINTR:
+    case EAGAIN:
+    case ETIME:
+      if (nget > 0) {
+        pd->result = (int)nget;
+      }
+      break;
+    default:
+      ink_assert(!"unhandled port_getn() case:");
+      break;
+    }
+  } else {
+    pd->result = (int)nget;
+  }
+  NetDebug("iocore_net_main_poll", "[NetHandler::mainNetEvent] %d[%s]=port_getn(%d,%p,%d,%d,%d),results(%d)",
+           retval,retval < 0 ? strerror(errno) : "ok",
+           pd->port_fd, pd->Port_Triggered_Events,
+           POLL_DESCRIPTOR_SIZE, nget, poll_timeout, pd->result);
+
+#else
+#error port me
+#endif
+
+  vc = NULL;
+  for (int x = 0; x < pd->result; x++) {
+    epd = (EventIO*) get_ev_data(pd,x);
+    if (epd->type == EVENTIO_READWRITE_VC) {
+      vc = epd->data.vc;
+      if (get_ev_events(pd,x) & (EVENTIO_READ|EVENTIO_ERROR)) {
+        vc->read.triggered = 1;
+        if (!read_ready_list.in(vc))
+          read_ready_list.enqueue(vc);
+        else if (get_ev_events(pd,x) & EVENTIO_ERROR) {
+          // check for unhandled epoll events that should be handled
+          Debug("iocore_net_main", "Unhandled epoll event on read: 0x%04x read.enabled=%d closed=%d read.netready_queue=%d",
+                get_ev_events(pd,x), vc->read.enabled, vc->closed, read_ready_list.in(vc));
+        }
+      }
+      vc = epd->data.vc;
+      if (get_ev_events(pd,x) & (EVENTIO_WRITE|EVENTIO_ERROR)) {
+        vc->write.triggered = 1;
+        if (!write_ready_list.in(vc))
+          write_ready_list.enqueue(vc);
+        else if (get_ev_events(pd,x) & EVENTIO_ERROR) {
+          // check for unhandled epoll events that should be handled
+          Debug("iocore_net_main",
+                "Unhandled epoll event on write: 0x%04x write.enabled=%d closed=%d write.netready_queue=%d",
+                get_ev_events(pd,x), vc->write.enabled, vc->closed, write_ready_list.in(vc));
+        }
+      } else if (!get_ev_events(pd,x) & EVENTIO_ERROR) {
+        Debug("iocore_net_main", "Unhandled epoll event: 0x%04x", get_ev_events(pd,x));
+      }
+    } else if (epd->type == EVENTIO_DNS_CONNECTION) {
+      if (epd->data.dnscon != NULL) {
+        epd->data.dnscon->trigger(); // Make sure the DNSHandler for this con knows we triggered
+#if defined(USE_EDGE_TRIGGER)
+        epd->refresh(EVENTIO_READ);
+#endif
+      }
+    } else if (epd->type == EVENTIO_ASYNC_SIGNAL)
+      net_signal_hook_callback(trigger_event->ethread);
+    ev_next_event(pd,x);
+  }
+
+  pd->result = 0;
+
+#if defined(USE_EDGE_TRIGGER)
+ // UnixNetVConnection *
+  while ((vc = read_ready_list.dequeue())) {
+    if (vc->closed)
+      close_UnixNetVConnection(vc, trigger_event->ethread);
+    else if (vc->read.enabled && vc->read.triggered)
+      vc->net_read_io(this, trigger_event->ethread);
+    else if (!vc->read.enabled) {
+      read_ready_list.remove(vc);
+#if defined(solaris)
+      if (vc->read.triggered && vc->write.enabled) {
+        vc->ep.modify(-EVENTIO_READ);
+        vc->ep.refresh(EVENTIO_WRITE);
+        vc->writeReschedule(this);
+      }
+#endif
+    }
+  }
+  while ((vc = write_ready_list.dequeue())) {
+    if (vc->closed)
+      close_UnixNetVConnection(vc, trigger_event->ethread);
+    else if (vc->write.enabled && vc->write.triggered)
+      write_to_net(this, vc, trigger_event->ethread);
+    else if (!vc->write.enabled) {
+      write_ready_list.remove(vc);
+#if defined(solaris)
+      if (vc->write.triggered && vc->read.enabled) {
+        vc->ep.modify(-EVENTIO_WRITE);
+        vc->ep.refresh(EVENTIO_READ);
+        vc->readReschedule(this);
+      }
+#endif
+    }
+  }
+#else /* !USE_EDGE_TRIGGER */
+  while ((vc = read_ready_list.dequeue())) {
+    if (vc->closed)
+      close_UnixNetVConnection(vc, trigger_event->ethread);
+    else if (vc->read.enabled && vc->read.triggered)
+      vc->net_read_io(this, trigger_event->ethread);
+    else if (!vc->read.enabled)
+      vc->ep.modify(-EVENTIO_READ);
+  }
+  while ((vc = write_ready_list.dequeue())) {
+    if (vc->closed)
+      close_UnixNetVConnection(vc, trigger_event->ethread);
+    else if (vc->write.enabled && vc->write.triggered)
+      write_to_net(this, vc, trigger_event->ethread);
+    else if (!vc->write.enabled)
+      vc->ep.modify(-EVENTIO_WRITE);
+  }
+#endif /* !USE_EDGE_TRIGGER */
+
+  return EVENT_CONT;
+}
+
diff --git a/iocore/net/UnixNetAccept.cc b/iocore/net/UnixNetAccept.cc
new file mode 100644
index 00000000..f9d75599
--- /dev/null
+++ b/iocore/net/UnixNetAccept.cc
@@ -0,0 +1,563 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+
+#ifdef ROUNDUP
+#undef ROUNDUP
+#endif
+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
+
+typedef int (NetAccept::*NetAcceptHandler) (int, void *);
+volatile int dummy_volatile = 0;
+int accept_till_done = 1;
+
+static void
+safe_delay(int msec)
+{
+  socketManager.poll(0, 0, msec);
+}
+
+
+//
+// Send the throttling message to up to THROTTLE_AT_ONCE connections,
+// delaying to let some of the current connections complete
+//
+static int
+send_throttle_message(NetAccept * na)
+{
+  struct pollfd afd;
+  Connection con[100];
+  char dummy_read_request[4096];
+
+  afd.fd = na->server.fd;
+  afd.events = POLLIN;
+
+  int n = 0;
+  while (check_net_throttle(ACCEPT, ink_get_hrtime()) && n < THROTTLE_AT_ONCE - 1
+         && (socketManager.poll(&afd, 1, 0) > 0)) {
+    int res = 0;
+    if ((res = na->server.accept(&con[n])) < 0)
+      return res;
+    n++;
+  }
+  safe_delay(NET_THROTTLE_DELAY / 2);
+  int i = 0;
+  for (i = 0; i < n; i++) {
+    socketManager.read(con[i].fd, dummy_read_request, 4096);
+    socketManager.write(con[i].fd, unix_netProcessor.throttle_error_message,
+                        strlen(unix_netProcessor.throttle_error_message));
+  }
+  safe_delay(NET_THROTTLE_DELAY / 2);
+  for (i = 0; i < n; i++)
+    con[i].close();
+  return 0;
+}
+
+
+//
+// General case network connection accept code
+//
+int
+net_accept(NetAccept * na, void *ep, bool blockable)
+{
+  Event *e = (Event *) ep;
+  int res = 0;
+  int count = 0;
+  int loop = accept_till_done;
+  UnixNetVConnection *vc = NULL;
+
+  if (!blockable)
+    if (!MUTEX_TAKE_TRY_LOCK_FOR(na->action_->mutex, e->ethread, na->action_->continuation))
+      return 0;
+  //do-while for accepting all the connections
+  //added by YTS Team, yamsat
+  do {
+    vc = (UnixNetVConnection *) na->alloc_cache;
+    if (!vc) {
+      vc = (UnixNetVConnection *)na->getNetProcessor()->allocate_vc(e->ethread);
+      NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, 1);
+      vc->id = net_next_connection_number();
+      na->alloc_cache = vc;
+    }
+    if ((res = na->server.accept(&vc->con)) < 0) {
+      if (res == -EAGAIN || res == -ECONNABORTED || res == -EPIPE)
+        goto Ldone;
+      if (na->server.fd != NO_FD && !na->action_->cancelled) {
+        if (!blockable)
+          na->action_->continuation->handleEvent(EVENT_ERROR, (void *)(intptr_t)res);
+        else {
+          MUTEX_LOCK(lock, na->action_->mutex, e->ethread);
+          na->action_->continuation->handleEvent(EVENT_ERROR, (void *)(intptr_t)res);
+        }
+      }
+      count = res;
+      goto Ldone;
+    }
+    count++;
+    na->alloc_cache = NULL;
+
+    vc->submit_time = ink_get_hrtime();
+    ats_ip_copy(&vc->server_addr, &vc->con.addr);
+    vc->mutex = new_ProxyMutex();
+    vc->action_ = *na->action_;
+    vc->set_is_transparent(na->server.f_inbound_transparent);
+    vc->closed  = 0;
+    SET_CONTINUATION_HANDLER(vc, (NetVConnHandler) & UnixNetVConnection::acceptEvent);
+
+    if (e->ethread->is_event_type(na->etype))
+      vc->handleEvent(EVENT_NONE, e);
+    else
+      eventProcessor.schedule_imm(vc, na->etype);
+  } while (loop);
+
+Ldone:
+  if (!blockable)
+    MUTEX_UNTAKE_LOCK(na->action_->mutex, e->ethread);
+  return count;
+}
+
+//
+// Initialize the NetAccept for execution in its own thread.
+// This should be done for low latency, high connection rate sockets.
+//
+void
+NetAccept::init_accept_loop(const char *thr_name)
+{
+  size_t stacksize;
+
+  REC_ReadConfigInteger(stacksize, "proxy.config.thread.default.stacksize");
+  SET_CONTINUATION_HANDLER(this, &NetAccept::acceptLoopEvent);
+  eventProcessor.spawn_thread(this, thr_name, stacksize);
+}
+
+
+//
+// Initialize the NetAccept for execution in a etype thread.
+// This should be done for low connection rate sockets.
+// (Management, Cluster, etc.)  Also, since it adapts to the
+// number of connections arriving, it should be reasonable to
+// use it for high connection rates as well.
+//
+void
+NetAccept::init_accept(EThread * t)
+{
+  if (!t)
+    t = eventProcessor.assign_thread(etype);
+
+  if (!action_->continuation->mutex) {
+    action_->continuation->mutex = t->mutex;
+    action_->mutex = t->mutex;
+  }
+  if (do_listen(NON_BLOCKING))
+    return;
+  SET_HANDLER((NetAcceptHandler) & NetAccept::acceptEvent);
+  period = ACCEPT_PERIOD;
+  t->schedule_every(this, period, etype);
+}
+
+
+void
+NetAccept::init_accept_per_thread()
+{
+  int i, n;
+
+  if (do_listen(NON_BLOCKING))
+    return;
+  if (accept_fn == net_accept)
+    SET_HANDLER((NetAcceptHandler) & NetAccept::acceptFastEvent);
+  else
+    SET_HANDLER((NetAcceptHandler) & NetAccept::acceptEvent);
+  period = ACCEPT_PERIOD;
+
+  NetAccept *a;
+  n = eventProcessor.n_threads_for_type[ET_NET];
+  for (i = 0; i < n; i++) {
+    if (i < n - 1)
+      a = clone();
+    else
+      a = this;
+    EThread *t = eventProcessor.eventthread[ET_NET][i];
+    PollDescriptor *pd = get_PollDescriptor(t);
+    if (a->ep.start(pd, a, EVENTIO_READ) < 0)
+      Warning("[NetAccept::init_accept_per_thread]:error starting EventIO");
+    a->mutex = get_NetHandler(t)->mutex;
+    t->schedule_every(a, period, etype);
+  }
+}
+
+int
+NetAccept::do_listen(bool non_blocking, bool transparent)
+{
+  int res = 0;
+
+  if (server.fd != NO_FD) {
+    if ((res = server.setup_fd_for_listen(non_blocking, recv_bufsize, send_bufsize, transparent))) {
+
+      Warning("unable to listen on main accept port %d: errno = %d, %s", ntohs(server.accept_addr.port()), errno, strerror(errno));
+      goto Lretry;
+    }
+  } else {
+  Lretry:
+    if ((res = server.listen(non_blocking, recv_bufsize, send_bufsize, transparent)))
+      Warning("unable to listen on port %d: %d %d, %s", ntohs(server.accept_addr.port()), res, errno, strerror(errno));
+  }
+  if (callback_on_open && !action_->cancelled) {
+    if (res)
+      action_->continuation->handleEvent(NET_EVENT_ACCEPT_FAILED, this);
+    else
+      action_->continuation->handleEvent(NET_EVENT_ACCEPT_SUCCEED, this);
+    mutex = NULL;
+  }
+  return res;
+}
+
+int
+NetAccept::do_blocking_accept(EThread * t)
+{
+  int res = 0;
+  int loop = accept_till_done;
+  UnixNetVConnection *vc = NULL;
+  Connection con;
+
+  //do-while for accepting all the connections
+  //added by YTS Team, yamsat
+  do {
+    ink_hrtime now = ink_get_hrtime();
+
+    // Throttle accepts
+
+    while (!backdoor && check_net_throttle(ACCEPT, now)) {
+      check_throttle_warning();
+      if (!unix_netProcessor.throttle_error_message) {
+        safe_delay(NET_THROTTLE_DELAY);
+      } else if (send_throttle_message(this) < 0) {
+        goto Lerror;
+      }
+      now = ink_get_hrtime();
+    }
+
+    if ((res = server.accept(&con)) < 0) {
+    Lerror:
+      int seriousness = accept_error_seriousness(res);
+      if (seriousness >= 0) {   // not so bad
+        if (!seriousness)       // bad enough to warn about
+          check_transient_accept_error(res);
+        safe_delay(NET_THROTTLE_DELAY);
+        return 0;
+      }
+      if (!action_->cancelled) {
+        MUTEX_LOCK(lock, action_->mutex, t);
+        action_->continuation->handleEvent(EVENT_ERROR, (void *)(intptr_t)res);
+        MUTEX_UNTAKE_LOCK(action_->mutex, t);
+        Warning("accept thread received fatal error: errno = %d", errno);
+      }
+      return -1;
+    }
+
+    // Use 'NULL' to Bypass thread allocator
+    vc = (UnixNetVConnection *)this->getNetProcessor()->allocate_vc(NULL);
+    if (!vc) {
+      con.close();
+      return -1;
+    }
+    vc->con = con;
+    vc->from_accept_thread = true;
+    vc->id = net_next_connection_number();
+    alloc_cache = NULL;
+
+    check_emergency_throttle(con);
+
+    NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, 1);
+    vc->submit_time = now;
+    ats_ip_copy(&vc->server_addr, &vc->con.addr);
+    vc->set_is_transparent(server.f_inbound_transparent);
+    vc->mutex = new_ProxyMutex();
+    vc->action_ = *action_;
+    SET_CONTINUATION_HANDLER(vc, (NetVConnHandler) & UnixNetVConnection::acceptEvent);
+    //eventProcessor.schedule_imm(vc, getEtype());
+    eventProcessor.schedule_imm_signal(vc, getEtype());
+  } while (loop);
+
+  return 1;
+}
+
+
+int
+NetAccept::acceptEvent(int event, void *ep)
+{
+  (void) event;
+  Event *e = (Event *) ep;
+  //PollDescriptor *pd = get_PollDescriptor(e->ethread);
+  ProxyMutex *m = 0;
+
+  if (action_->mutex)
+    m = action_->mutex;
+  else
+    m = mutex;
+  MUTEX_TRY_LOCK(lock, m, e->ethread);
+  if (lock) {
+    if (action_->cancelled) {
+      e->cancel();
+      NET_DECREMENT_DYN_STAT(net_accepts_currently_open_stat);
+      delete this;
+      return EVENT_DONE;
+    }
+
+    //ink_assert(ifd < 0 || event == EVENT_INTERVAL || (pd->nfds > ifd && pd->pfd[ifd].fd == server.fd));
+    //if (ifd < 0 || event == EVENT_INTERVAL || (pd->pfd[ifd].revents & (POLLIN | POLLERR | POLLHUP | POLLNVAL))) {
+    //ink_assert(!"incomplete");
+      int res;
+      if ((res = accept_fn(this, e, false)) < 0) {
+        NET_DECREMENT_DYN_STAT(net_accepts_currently_open_stat);
+        /* INKqa11179 */
+        Warning("Accept on port %d failed with error no %d",
+          ats_ip_port_host_order(&server.addr), res
+        );
+        Warning("Traffic Server may be unable to accept more network" "connections on %d",
+          ats_ip_port_host_order(&server.addr)
+        );
+        e->cancel();
+        delete this;
+        return EVENT_DONE;
+      }
+      //}
+  }
+  return EVENT_CONT;
+}
+
+
+int
+NetAccept::acceptFastEvent(int event, void *ep)
+{
+  Event *e = (Event *) ep;
+  (void) event;
+  (void) e;
+  int bufsz, res;
+  Connection con;
+
+  PollDescriptor *pd = get_PollDescriptor(e->ethread);
+  UnixNetVConnection *vc = NULL;
+  int loop = accept_till_done;
+
+  do {
+    if (!backdoor && check_net_throttle(ACCEPT, ink_get_hrtime())) {
+      ifd = -1;
+      return EVENT_CONT;
+    }
+
+    socklen_t sz = sizeof(con.addr);
+    int fd = socketManager.accept(server.fd, &con.addr.sa, &sz);
+    con.fd = fd;
+
+    if (likely(fd >= 0)) {
+      Debug("iocore_net", "accepted a new socket: %d", fd);
+      if (send_bufsize > 0) {
+        if (unlikely(socketManager.set_sndbuf_size(fd, send_bufsize))) {
+          bufsz = ROUNDUP(send_bufsize, 1024);
+          while (bufsz > 0) {
+            if (!socketManager.set_sndbuf_size(fd, bufsz))
+              break;
+            bufsz -= 1024;
+          }
+        }
+      }
+      if (recv_bufsize > 0) {
+        if (unlikely(socketManager.set_rcvbuf_size(fd, recv_bufsize))) {
+          bufsz = ROUNDUP(recv_bufsize, 1024);
+          while (bufsz > 0) {
+            if (!socketManager.set_rcvbuf_size(fd, bufsz))
+              break;
+            bufsz -= 1024;
+          }
+        }
+      }
+      if (sockopt_flags & 1) {  // we have to disable Nagle
+        safe_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int));
+        Debug("socket", "::acceptFastEvent: setsockopt() TCP_NODELAY on socket");
+      }
+      if (sockopt_flags & 2) {
+        safe_setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int));
+        Debug("socket", "::acceptFastEvent: setsockopt() SO_KEEPALIVE on socket");
+      }
+#if TS_HAS_SO_MARK
+      if (packet_mark != 0) {
+        safe_setsockopt(fd, SOL_SOCKET, SO_MARK, reinterpret_cast<char *>(&packet_mark), sizeof(uint32_t));
+      }
+#endif
+
+#if TS_HAS_IP_TOS
+      if (packet_tos != 0) {
+        safe_setsockopt(fd, IPPROTO_IP, IP_TOS, reinterpret_cast<char *>(&packet_tos), sizeof(uint32_t));
+      }
+#endif
+      do {
+        res = safe_nonblocking(fd);
+      } while (res < 0 && (errno == EAGAIN || errno == EINTR));
+
+      vc = (UnixNetVConnection *)this->getNetProcessor()->allocate_vc(e->ethread);
+      if (!vc) {
+        con.close();
+        goto Ldone;
+      }
+
+      vc->con = con;
+
+    } else {
+      res = fd;
+    }
+    if (res < 0) {
+      res = -errno;
+      if (res == -EAGAIN || res == -ECONNABORTED
+#if defined(linux)
+          || res == -EPIPE
+#endif
+        ) {
+        goto Ldone;
+      } else if (accept_error_seriousness(res) >= 0) {
+        check_transient_accept_error(res);
+        goto Ldone;
+      }
+      if (!action_->cancelled)
+        action_->continuation->handleEvent(EVENT_ERROR, (void *)(intptr_t)res);
+      goto Lerror;
+    }
+
+    NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, 1);
+    vc->id = net_next_connection_number();
+
+    vc->submit_time = ink_get_hrtime();
+    ats_ip_copy(&vc->server_addr, &vc->con.addr);
+    vc->set_is_transparent(server.f_inbound_transparent);
+    vc->mutex = new_ProxyMutex();
+    vc->thread = e->ethread;
+
+    vc->nh = get_NetHandler(e->ethread);
+
+    SET_CONTINUATION_HANDLER(vc, (NetVConnHandler) & UnixNetVConnection::mainEvent);
+
+    if (vc->ep.start(pd, vc, EVENTIO_READ|EVENTIO_WRITE) < 0) {
+      Warning("[NetAccept::acceptFastEvent]: Error in inserting fd[%d] in kevent\n", vc->con.fd);
+      close_UnixNetVConnection(vc, e->ethread);
+      return EVENT_DONE;
+    }
+
+    vc->nh->open_list.enqueue(vc);
+
+#ifdef USE_EDGE_TRIGGER
+    // Set the vc as triggered and place it in the read ready queue in case there is already data on the socket.
+    Debug("iocore_net", "acceptEvent : Setting triggered and adding to the read ready queue");
+    vc->read.triggered = 1;
+    vc->nh->read_ready_list.enqueue(vc);
+#endif
+
+    if (!action_->cancelled)
+      action_->continuation->handleEvent(NET_EVENT_ACCEPT, vc);
+    else
+      close_UnixNetVConnection(vc, e->ethread);
+  } while (loop);
+
+Ldone:
+  return EVENT_CONT;
+
+Lerror:
+  server.close();
+  e->cancel();
+  vc->free(e->ethread);
+  NET_DECREMENT_DYN_STAT(net_accepts_currently_open_stat);
+  delete this;
+  return EVENT_DONE;
+}
+
+
+int
+NetAccept::acceptLoopEvent(int event, Event * e)
+{
+  (void) event;
+  (void) e;
+  EThread *t = this_ethread();
+
+  while (1)
+    do_blocking_accept(t);
+
+  // Don't think this ever happens ...
+  NET_DECREMENT_DYN_STAT(net_accepts_currently_open_stat);
+  delete this;
+  return EVENT_DONE;
+}
+
+
+//
+// Accept Event handler
+//
+//
+
+NetAccept::NetAccept()
+  : Continuation(NULL),
+    period(0),
+    alloc_cache(0),
+    ifd(-1),
+    callback_on_open(false),
+    backdoor(false),
+    recv_bufsize(0),
+    send_bufsize(0),
+    sockopt_flags(0),
+    packet_mark(0),
+    packet_tos(0),
+    etype(0)
+{ }
+
+
+//
+// Stop listening.  When the next poll takes place, an error will result.
+// THIS ONLY WORKS WITH POLLING STYLE ACCEPTS!
+//
+void
+NetAccept::cancel()
+{
+  action_->cancel();
+  server.close();
+}
+
+NetAccept *
+NetAccept::clone() const
+{
+  NetAccept *na;
+  na = new NetAccept;
+  *na = *this;
+  return na;
+}
+
+// Virtual function allows the correct
+// etype to be used in NetAccept functions (ET_SSL
+// or ET_NET).
+EventType NetAccept::getEtype() const
+{
+  return etype;
+}
+
+NetProcessor *
+NetAccept::getNetProcessor() const
+{
+  return &netProcessor;
+}
diff --git a/iocore/net/UnixNetPages.cc b/iocore/net/UnixNetPages.cc
new file mode 100644
index 00000000..bec4c8cb
--- /dev/null
+++ b/iocore/net/UnixNetPages.cc
@@ -0,0 +1,249 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "P_Net.h"
+#include "Show.h"
+#include "I_Tasks.h"
+
+struct ShowNet;
+typedef int (ShowNet::*ShowNetEventHandler) (int event, Event * data);
+struct ShowNet: public ShowCont
+{
+  int ithread;
+  IpEndpoint addr;
+
+  int showMain(int event, Event * e)
+  {
+    CHECK_SHOW(begin("Net"));
+    CHECK_SHOW(show("<H3>Show <A HREF=\"./connections\">Connections</A></H3>\n"
+                    //"<H3>Show <A HREF=\"./threads\">Net Threads</A></H3>\n"
+                    "<form method = GET action = \"./ips\">\n"
+                    "Show Connections to/from IP (e.g. 127.0.0.1):<br>\n"
+                    "<input type=text name=ip size=64 maxlength=256>\n"
+                    "</form>\n"
+                    "<form method = GET action = \"./ports\">\n"
+                    "Show Connections to/from Port (e.g. 80):<br>\n"
+                    "<input type=text name=name size=64 maxlength=256>\n" "</form>\n"));
+    return complete(event, e);
+  }
+
+  int showConnectionsOnThread(int event, Event * e)
+  {
+    EThread *ethread = e->ethread;
+    NetHandler *nh = get_NetHandler(ethread);
+    MUTEX_TRY_LOCK(lock, nh->mutex, ethread);
+    if (!lock) {
+      ethread->schedule_in(this, NET_RETRY_DELAY);
+      return EVENT_DONE;
+    }
+
+    ink_hrtime now = ink_get_hrtime();
+    forl_LL(UnixNetVConnection, vc, nh->open_list) {
+//      uint16_t port = ats_ip_port_host_order(&addr.sa);
+      if (ats_is_ip(&addr) && addr != vc->server_addr)
+        continue;
+//      if (port && port != ats_ip_port_host_order(&vc->server_addr.sa) && port != vc->accept_port)
+//        continue;
+      char ipbuf[INET6_ADDRSTRLEN];
+      ats_ip_ntop(&vc->server_addr.sa, ipbuf, sizeof(ipbuf));
+      char opt_ipbuf[INET6_ADDRSTRLEN];
+      char interbuf[80];
+      snprintf(interbuf, sizeof(interbuf), "[%s] %s:%d",
+        vc->options.toString(vc->options.addr_binding),
+        vc->options.local_ip.toString(opt_ipbuf, sizeof(opt_ipbuf)),
+        vc->options.local_port
+      );
+      CHECK_SHOW(show("<tr>"
+                      //"<td><a href=\"/connection/%d\">%d</a></td>"
+                      "<td>%d</td>"     // ID
+                      "<td>%s</td>"     // ipbuf
+                      "<td>%d</td>"     // port
+                      "<td>%d</td>"     // fd
+                      "<td>%s</td>"     // interbuf
+//                      "<td>%d</td>"     // accept port
+                      "<td>%d secs ago</td>"    // start time
+                      "<td>%d</td>"     // thread id
+                      "<td>%d</td>"     // read enabled
+                      "<td>%" PRId64 "</td>"     // read NBytes
+                      "<td>%" PRId64 "</td>"     // read NDone
+                      "<td>%d</td>"     // write enabled
+                      "<td>%" PRId64 "</td>"     // write nbytes
+                      "<td>%" PRId64 "</td>"     // write ndone
+                      "<td>%d secs</td>"        // Inactivity timeout at
+                      "<td>%d secs</td>"        // Activity timeout at
+                      "<td>%d</td>"     // shutdown
+                      "<td>-%s</td>"    // comments
+                      "</tr>\n",
+                      vc->id,
+                      ipbuf,
+                      ats_ip_port_host_order(&vc->server_addr),
+                      vc->con.fd,
+                      interbuf,
+//                      vc->accept_port,
+                      (int) ((now - vc->submit_time) / HRTIME_SECOND),
+                      ethread->id,
+                      vc->read.enabled,
+                      vc->read.vio.nbytes,
+                      vc->read.vio.ndone,
+                      vc->write.enabled,
+                      vc->write.vio.nbytes,
+                      vc->write.vio.ndone,
+                      (int) (vc->inactivity_timeout_in / HRTIME_SECOND),
+                      (int) (vc->active_timeout_in / HRTIME_SECOND), vc->f.shutdown, vc->closed ? "closed " : ""));
+    }
+    ithread++;
+    if (ithread < eventProcessor.n_threads_for_type[ET_NET])
+      eventProcessor.eventthread[ET_NET][ithread]->schedule_imm(this);
+    else {
+      CHECK_SHOW(show("</table>\n"));
+      return complete(event, e);
+    }
+    return EVENT_CONT;
+  }
+
+  int showConnections(int event, Event * e)
+  {
+    CHECK_SHOW(begin("Net Connections"));
+    CHECK_SHOW(show("<H3>Connections</H3>\n"
+                    "<table border=1><tr>"
+                    "<th>ID</th>"
+                    "<th>IP</th>"
+                    "<th>Port</th>"
+                    "<th>FD</th>"
+                    "<th>Interface</th>"
+                    "<th>Accept Port</th>"
+                    "<th>Time Started</th>"
+                    "<th>Thread</th>"
+                    "<th>Read Enabled</th>"
+                    "<th>Read NBytes</th>"
+                    "<th>Read NDone</th>"
+                    "<th>Write Enabled</th>"
+                    "<th>Write NBytes</th>"
+                    "<th>Write NDone</th>"
+                    "<th>Inactive Timeout</th>"
+                    "<th>Active   Timeout</th>"
+                    "<th>Shutdown</th>"
+                    "<th>Comments</th>"
+                    "</tr>\n"));
+    SET_HANDLER(&ShowNet::showConnectionsOnThread);
+    eventProcessor.eventthread[ET_NET][0]->schedule_imm(this); // This can not use ET_TASK.
+    return EVENT_CONT;
+  }
+
+  int showSingleThread(int event, Event * e)
+  {
+    EThread *ethread = e->ethread;
+    NetHandler *nh = get_NetHandler(ethread);
+    PollDescriptor *pollDescriptor = get_PollDescriptor(ethread);
+    MUTEX_TRY_LOCK(lock, nh->mutex, ethread);
+    if (!lock) {
+      ethread->schedule_in(this, NET_RETRY_DELAY);
+      return EVENT_DONE;
+    }
+
+    CHECK_SHOW(show("<H3>Thread: %d</H3>\n", ithread));
+    CHECK_SHOW(show("<table border=1>\n"));
+    int connections = 0;
+    forl_LL(UnixNetVConnection, vc, nh->open_list)
+      connections++;
+    CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "Connections", connections));
+    //CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "Last Poll Size", pollDescriptor->nfds));
+    CHECK_SHOW(show("<tr><td>%s</td><td>%d</td></tr>\n", "Last Poll Ready", pollDescriptor->result));
+    CHECK_SHOW(show("</table>\n"));
+    CHECK_SHOW(show("<table border=1>\n"));
+    CHECK_SHOW(show
+               ("<tr><th>#</th><th>Read Priority</th><th>Read Bucket</th><th>Write Priority</th><th>Write Bucket</th></tr>\n"));
+    CHECK_SHOW(show("</table>\n"));
+    ithread++;
+    if (ithread < eventProcessor.n_threads_for_type[ET_NET])
+      eventProcessor.eventthread[ET_NET][ithread]->schedule_imm(this);
+    else
+      return complete(event, e);
+    return EVENT_CONT;
+  }
+
+  int showThreads(int event, Event * e)
+  {
+    CHECK_SHOW(begin("Net Threads"));
+    SET_HANDLER(&ShowNet::showSingleThread);
+    eventProcessor.eventthread[ET_NET][0]->schedule_imm(this); // This can not use ET_TASK
+    return EVENT_CONT;
+  }
+  int showSingleConnection(int event, Event * e)
+  {
+    CHECK_SHOW(begin("Net Connection"));
+    return complete(event, e);
+  }
+  int showHostnames(int event, Event * e)
+  {
+    CHECK_SHOW(begin("Net Connections to/from Host"));
+    return complete(event, e);
+  }
+
+ShowNet(Continuation * c, HTTPHdr * h):
+  ShowCont(c, h), ithread(0) {
+    memset(&addr, 0, sizeof(addr));
+    SET_HANDLER(&ShowNet::showMain);
+  }
+};
+
+#undef STREQ_PREFIX
+#define STREQ_PREFIX(_x,_n,_s) (!ptr_len_ncasecmp(_x,_n,_s,sizeof(_s)-1))
+Action *
+register_ShowNet(Continuation * c, HTTPHdr * h)
+{
+  ShowNet *s = new ShowNet(c, h);
+  int path_len;
+  const char *path = h->url_get()->path_get(&path_len);
+
+  SET_CONTINUATION_HANDLER(s, &ShowNet::showMain);
+  if (STREQ_PREFIX(path, path_len, "connections")) {
+    SET_CONTINUATION_HANDLER(s, &ShowNet::showConnections);
+  } else if (STREQ_PREFIX(path, path_len, "threads")) {
+    SET_CONTINUATION_HANDLER(s, &ShowNet::showThreads);
+  } else if (STREQ_PREFIX(path, path_len, "ips")) {
+    int query_len;
+    const char *query = h->url_get()->query_get(&query_len);
+    s->sarg = ats_strndup(query, query_len);
+    char *gn = NULL;
+    if (s->sarg)
+      gn = (char *)memchr(s->sarg, '=', strlen(s->sarg));
+    if (gn)
+      ats_ip_pton(gn + 1, &s->addr);
+    SET_CONTINUATION_HANDLER(s, &ShowNet::showConnections);
+  } else if (STREQ_PREFIX(path, path_len, "ports")) {
+    int query_len;
+    const char *query = h->url_get()->query_get(&query_len);
+    s->sarg = ats_strndup(query, query_len);
+    char *gn = NULL;
+    if (s->sarg)
+      gn = (char *)memchr(s->sarg, '=', strlen(s->sarg));
+    if (gn)
+      ats_ip_port_cast(&s->addr.sa) = htons(atoi(gn+1));
+    SET_CONTINUATION_HANDLER(s, &ShowNet::showConnections);
+  }
+  eventProcessor.schedule_imm(s, ET_TASK);
+  return &s->action;
+}
+
diff --git a/iocore/net/UnixNetProcessor.cc b/iocore/net/UnixNetProcessor.cc
new file mode 100644
index 00000000..a16946fd
--- /dev/null
+++ b/iocore/net/UnixNetProcessor.cc
@@ -0,0 +1,477 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+
+// For Stat Pages
+#include "StatPages.h"
+
+NetProcessor::AcceptOptions const NetProcessor::DEFAULT_ACCEPT_OPTIONS;
+
+NetProcessor::AcceptOptions&
+NetProcessor::AcceptOptions::reset()
+{
+  local_port = 0;
+  local_ip.invalidate();
+  accept_threads = -1;
+  ip_family = AF_INET;
+  etype = ET_NET;
+  f_callback_on_open = false;
+  localhost_only = false;
+  frequent_accept = true;
+  backdoor = false;
+  recv_bufsize = 0;
+  send_bufsize = 0;
+  sockopt_flags = 0;
+  packet_mark = 0;
+  packet_tos = 0;
+  f_inbound_transparent = false;
+  return *this;
+}
+
+
+int net_connection_number = 1;
+
+unsigned int
+net_next_connection_number()
+{
+  unsigned int res = 0;
+  do {
+    res = (unsigned int)
+      ink_atomic_increment(&net_connection_number, 1);
+  } while (!res);
+  return res;
+}
+
+Action *
+NetProcessor::accept(Continuation* cont, AcceptOptions const& opt)
+{
+  Debug("iocore_net_processor", "NetProcessor::accept - port %d,recv_bufsize %d, send_bufsize %d, sockopt 0x%0x",
+        opt.local_port, opt.recv_bufsize, opt.send_bufsize, opt.sockopt_flags);
+
+  return ((UnixNetProcessor *) this)->accept_internal(cont, NO_FD, opt);
+}
+
+Action *
+NetProcessor::main_accept(Continuation *cont, SOCKET fd, AcceptOptions const& opt)
+{
+  UnixNetProcessor* this_unp = static_cast<UnixNetProcessor*>(this);
+  Debug("iocore_net_processor", "NetProcessor::main_accept - port %d,recv_bufsize %d, send_bufsize %d, sockopt 0x%0x",
+        opt.local_port, opt.recv_bufsize, opt.send_bufsize, opt.sockopt_flags);
+  return this_unp->accept_internal(cont, fd, opt);
+}
+
+Action *
+UnixNetProcessor::accept_internal(Continuation *cont, int fd, AcceptOptions const& opt)
+{
+  EventType upgraded_etype = opt.etype; // setEtype requires non-const ref.
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  int accept_threads = opt.accept_threads; // might be changed.
+  IpEndpoint accept_ip; // local binding address.
+  char thr_name[MAX_THREAD_NAME_LENGTH];
+
+  NetAccept *na = createNetAccept();
+
+  // Potentially upgrade to SSL.
+  upgradeEtype(upgraded_etype);
+
+  // Fill in accept thread from configuration if necessary.
+  if (opt.accept_threads < 0) {
+    REC_ReadConfigInteger(accept_threads, "proxy.config.accept_threads");
+  }
+
+  NET_INCREMENT_DYN_STAT(net_accepts_currently_open_stat);
+
+  // We've handled the config stuff at start up, but there are a few cases
+  // we must handle at this point.
+  if (opt.localhost_only) {
+    accept_ip.setToLoopback(opt.ip_family);
+  } else if (opt.local_ip.isValid()) {
+    accept_ip.assign(opt.local_ip);
+  } else {
+    accept_ip.setToAnyAddr(opt.ip_family);
+  }
+  ink_assert(0 < opt.local_port && opt.local_port < 65536);
+  accept_ip.port() = htons(opt.local_port);
+
+  na->accept_fn = net_accept; // All callers used this.
+  na->server.fd = fd;
+  ats_ip_copy(&na->server.accept_addr, &accept_ip);
+  na->server.f_inbound_transparent = opt.f_inbound_transparent;
+  if (opt.f_inbound_transparent) {
+    Debug( "http_tproxy", "Marking accept server %p on port %d as inbound transparent", na, opt.local_port);
+  }
+
+  int should_filter_int = 0;
+  na->server.http_accept_filter = false;
+  REC_ReadConfigInteger(should_filter_int, "proxy.config.net.defer_accept");
+  if (should_filter_int > 0 && opt.etype == ET_NET)
+    na->server.http_accept_filter = true;
+
+  na->action_ = new NetAcceptAction();
+  *na->action_ = cont;
+  na->action_->server = &na->server;
+  na->callback_on_open = opt.f_callback_on_open;
+  na->recv_bufsize = opt.recv_bufsize;
+  na->send_bufsize = opt.send_bufsize;
+  na->sockopt_flags = opt.sockopt_flags;
+  na->packet_mark = opt.packet_mark;
+  na->packet_tos = opt.packet_tos;
+  na->etype = upgraded_etype;
+  na->backdoor = opt.backdoor;
+  if (na->callback_on_open)
+    na->mutex = cont->mutex;
+  if (opt.frequent_accept) { // true
+    if (accept_threads > 0)  {
+      if (0 == na->do_listen(BLOCKING, opt.f_inbound_transparent)) {
+
+        for (int i=1; i < accept_threads; ++i) {
+          NetAccept * a = na->clone();
+
+          snprintf(thr_name, MAX_THREAD_NAME_LENGTH, "[ACCEPT %d:%d]", i-1, ats_ip_port_host_order(&accept_ip));
+          a->init_accept_loop(thr_name);
+          Debug("iocore_net_accept", "Created accept thread #%d for port %d", i, ats_ip_port_host_order(&accept_ip));
+        }
+
+        // Start the "template" accept thread last.
+        Debug("iocore_net_accept", "Created accept thread #%d for port %d", accept_threads, ats_ip_port_host_order(&accept_ip));
+        snprintf(thr_name, MAX_THREAD_NAME_LENGTH, "[ACCEPT %d:%d]", accept_threads-1, ats_ip_port_host_order(&accept_ip));
+        na->init_accept_loop(thr_name);
+      }
+    } else {
+      na->init_accept_per_thread();
+    }
+  } else {
+    na->init_accept();
+  }
+
+#ifdef TCP_DEFER_ACCEPT
+  // set tcp defer accept timeout if it is configured, this will not trigger an accept until there is
+  // data on the socket ready to be read
+  if (should_filter_int > 0) {
+    setsockopt(na->server.fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, &should_filter_int, sizeof(int));
+  }
+#endif
+#ifdef TCP_INIT_CWND
+ int tcp_init_cwnd = 0;
+ REC_ReadConfigInteger(tcp_init_cwnd, "proxy.config.http.server_tcp_init_cwnd");
+ if(tcp_init_cwnd > 0) {
+    Debug("net", "Setting initial congestion window to %d", tcp_init_cwnd);
+    if(setsockopt(na->server.fd, IPPROTO_TCP, TCP_INIT_CWND, &tcp_init_cwnd, sizeof(int)) != 0) {
+      Error("Cannot set initial congestion window to %d", tcp_init_cwnd);
+    }
+ }
+#endif
+  return na->action_;
+}
+
+Action *
+UnixNetProcessor::connect_re_internal(
+  Continuation * cont,
+  sockaddr const* target,
+  NetVCOptions * opt
+) {
+  ProxyMutex *mutex = cont->mutex;
+  EThread *t = mutex->thread_holding;
+  UnixNetVConnection *vc = (UnixNetVConnection *)this->allocate_vc(t);
+
+  if (opt)
+    vc->options = *opt;
+  else
+    opt = &vc->options;
+
+  // virtual function used to upgrade etype to ET_SSL for SSLNetProcessor.
+  upgradeEtype(opt->etype);
+
+  bool using_socks = (socks_conf_stuff->socks_needed && opt->socks_support != NO_SOCKS
+#ifdef SOCKS_WITH_TS
+                      && (opt->socks_version != SOCKS_DEFAULT_VERSION ||
+                          /* This implies we are tunnelling.
+                           * we need to connect using socks server even
+                           * if this ip is in no_socks list.
+                           */
+                          !socks_conf_stuff->ip_map.contains(target))
+#endif
+    );
+  SocksEntry *socksEntry = NULL;
+
+  NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, 1);
+  vc->id = net_next_connection_number();
+  vc->submit_time = ink_get_hrtime();
+  vc->setSSLClientConnection(true);
+  ats_ip_copy(&vc->server_addr, target);
+  vc->mutex = cont->mutex;
+  Action *result = &vc->action_;
+
+  if (using_socks) {
+    char buff[INET6_ADDRPORTSTRLEN];
+    Debug("Socks", "Using Socks ip: %s\n", ats_ip_nptop(target, buff, sizeof(buff)));
+    socksEntry = socksAllocator.alloc();
+    socksEntry->init(cont->mutex, vc, opt->socks_support, opt->socks_version);        /*XXXX remove last two args */
+    socksEntry->action_ = cont;
+    cont = socksEntry;
+    if (!ats_is_ip(&socksEntry->server_addr)) {
+      socksEntry->lerrno = ESOCK_NO_SOCK_SERVER_CONN;
+      socksEntry->free();
+      return ACTION_RESULT_DONE;
+    }
+    ats_ip_copy(&vc->server_addr, &socksEntry->server_addr);
+    result = &socksEntry->action_;
+    vc->action_ = socksEntry;
+  } else {
+    Debug("Socks", "Not Using Socks %d \n", socks_conf_stuff->socks_needed);
+    vc->action_ = cont;
+  }
+
+  if (t->is_event_type(opt->etype)) {
+    MUTEX_TRY_LOCK(lock, cont->mutex, t);
+    if (lock) {
+      MUTEX_TRY_LOCK(lock2, get_NetHandler(t)->mutex, t);
+      if (lock2) {
+        int ret;
+        ret = vc->connectUp(t, NO_FD);
+        if ((using_socks) && (ret == CONNECT_SUCCESS))
+          return &socksEntry->action_;
+        else
+          return ACTION_RESULT_DONE;
+      }
+    }
+  }
+  eventProcessor.schedule_imm(vc, opt->etype);
+  if (using_socks) {
+    return &socksEntry->action_;
+  } else
+    return result;
+}
+
+Action *
+UnixNetProcessor::connect(Continuation * cont, UnixNetVConnection ** /* avc */, sockaddr const* target,
+                          NetVCOptions * opt)
+{
+  return connect_re(cont, target, opt);
+}
+
+struct CheckConnect:public Continuation
+{
+  UnixNetVConnection *vc;
+  Action action_;
+  MIOBuffer *buf;
+  IOBufferReader *reader;
+  int connect_status;
+  int recursion;
+  ink_hrtime timeout;
+
+  int handle_connect(int event, Event * e)
+  {
+    connect_status = event;
+    switch (event) {
+    case NET_EVENT_OPEN:
+      vc = (UnixNetVConnection *) e;
+      Debug("iocore_net_connect", "connect Net open");
+      vc->do_io_write(this, 10, /* some non-zero number just to get the poll going */
+                      reader);
+      /* dont wait for more than timeout secs */
+      vc->set_inactivity_timeout(timeout);
+      return EVENT_CONT;
+      break;
+
+      case NET_EVENT_OPEN_FAILED:
+        Debug("iocore_net_connect", "connect Net open failed");
+      if (!action_.cancelled)
+        action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *) e);
+      break;
+
+      case VC_EVENT_WRITE_READY:int sl, ret;
+      socklen_t sz;
+      if (!action_.cancelled)
+      {
+        sz = sizeof(int);
+          ret = getsockopt(vc->con.fd, SOL_SOCKET, SO_ERROR, (char *) &sl, &sz);
+        if (!ret && sl == 0)
+        {
+          Debug("iocore_net_connect", "connection established");
+          /* disable write on vc */
+          vc->write.enabled = 0;
+          vc->cancel_inactivity_timeout();
+          //write_disable(get_NetHandler(this_ethread()), vc);
+          /* clean up vc fields */
+          vc->write.vio.nbytes = 0;
+          vc->write.vio.op = VIO::NONE;
+          vc->write.vio.buffer.clear();
+
+
+          action_.continuation->handleEvent(NET_EVENT_OPEN, vc);
+          delete this;
+            return EVENT_DONE;
+        }
+      }
+      vc->do_io_close();
+      if (!action_.cancelled)
+        action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *) -ENET_CONNECT_FAILED);
+      break;
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+      Debug("iocore_net_connect", "connect timed out");
+      vc->do_io_close();
+      if (!action_.cancelled)
+        action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *) -ENET_CONNECT_TIMEOUT);
+      break;
+    default:
+      ink_assert(!"unknown connect event");
+      if (!action_.cancelled)
+        action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *) -ENET_CONNECT_FAILED);
+
+    }
+    if (!recursion)
+      delete this;
+    return EVENT_DONE;
+  }
+
+  Action *connect_s(Continuation * cont, sockaddr const* target,
+                    int _timeout, NetVCOptions * opt)
+  {
+    action_ = cont;
+    timeout = HRTIME_SECONDS(_timeout);
+    recursion++;
+    netProcessor.connect_re(this, target, opt);
+    recursion--;
+    if (connect_status != NET_EVENT_OPEN_FAILED)
+      return &action_;
+    else {
+      delete this;
+      return ACTION_RESULT_DONE;
+    }
+  }
+
+  CheckConnect(ProxyMutex * m = NULL):Continuation(m), connect_status(-1), recursion(0), timeout(0) {
+    SET_HANDLER(&CheckConnect::handle_connect);
+    buf = new_empty_MIOBuffer(1);
+    reader = buf->alloc_reader();
+  }
+
+  ~CheckConnect() {
+    buf->dealloc_all_readers();
+    buf->clear();
+    free_MIOBuffer(buf);
+  }
+};
+
+Action *
+NetProcessor::connect_s(Continuation * cont, sockaddr const* target,
+                        int timeout, NetVCOptions * opt)
+{
+  Debug("iocore_net_connect", "NetProcessor::connect_s called");
+  CheckConnect *c = new CheckConnect(cont->mutex);
+  return c->connect_s(cont, target, timeout, opt);
+}
+
+
+
+struct PollCont;
+
+// This is a little odd, in that the actual threads are created before calling the processor.
+int
+UnixNetProcessor::start(int, size_t)
+{
+  EventType etype = ET_NET;
+
+  netHandler_offset = eventProcessor.allocate(sizeof(NetHandler));
+  pollCont_offset = eventProcessor.allocate(sizeof(PollCont));
+
+  // etype is ET_NET for netProcessor
+  // and      ET_SSL for sslNetProcessor
+  upgradeEtype(etype);
+
+  n_netthreads = eventProcessor.n_threads_for_type[etype];
+  netthreads = eventProcessor.eventthread[etype];
+  for (int i = 0; i < n_netthreads; ++i) {
+    initialize_thread_for_net(netthreads[i]);
+    extern void initialize_thread_for_http_sessions(EThread *thread, int thread_index);
+    initialize_thread_for_http_sessions(netthreads[i], i);
+  }
+
+  RecData d;
+  d.rec_int = 0;
+  change_net_connections_throttle(NULL, RECD_INT, d, NULL);
+
+  // Socks
+  if (!netProcessor.socks_conf_stuff) {
+    socks_conf_stuff = new socks_conf_struct;
+    loadSocksConfiguration(socks_conf_stuff);
+    if (!socks_conf_stuff->socks_needed && socks_conf_stuff->accept_enabled) {
+      Warning("We can not have accept_enabled and socks_needed turned off" " disabling Socks accept\n");
+      socks_conf_stuff->accept_enabled = 0;
+    } else {
+      // this is sslNetprocessor
+      socks_conf_stuff = netProcessor.socks_conf_stuff;
+    }
+  }
+
+  // commented by vijay -  bug 2489945
+  /*if (use_accept_thread) // 0
+     { NetAccept * na = createNetAccept();
+     SET_CONTINUATION_HANDLER(na,&NetAccept::acceptLoopEvent);
+     accept_thread_event = eventProcessor.spawn_thread(na);
+     if (!accept_thread_event) delete na;
+     } */
+
+
+/*
+ * Stat pages
+ */
+  extern Action *register_ShowNet(Continuation * c, HTTPHdr * h);
+  if (etype == ET_NET)
+    statPagesManager.register_http("net", register_ShowNet);
+  return 1;
+}
+
+// Virtual function allows creation of an
+// SSLNetAccept or NetAccept transparent to NetProcessor.
+NetAccept *
+UnixNetProcessor::createNetAccept()
+{
+  return new NetAccept;
+}
+
+NetVConnection *
+UnixNetProcessor::allocate_vc(EThread *t)
+{
+  UnixNetVConnection *vc;
+
+  if (t) {
+    vc = THREAD_ALLOC(netVCAllocator, t);
+  } else {
+    if (likely(vc = netVCAllocator.alloc())) {
+      vc->from_accept_thread = true;
+    }
+  }
+
+  return vc;
+}
+
+struct socks_conf_struct *
+NetProcessor::socks_conf_stuff = NULL;
+int NetProcessor::accept_mss = 0;
+
+UnixNetProcessor unix_netProcessor;
+NetProcessor & netProcessor = unix_netProcessor;
diff --git a/iocore/net/UnixNetVConnection.cc b/iocore/net/UnixNetVConnection.cc
new file mode 100644
index 00000000..7f253e53
--- /dev/null
+++ b/iocore/net/UnixNetVConnection.cc
@@ -0,0 +1,1208 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "P_Net.h"
+
+#define STATE_VIO_OFFSET ((uintptr_t)&((NetState*)0)->vio)
+#define STATE_FROM_VIO(_x) ((NetState*)(((char*)(_x)) - STATE_VIO_OFFSET))
+
+#define disable_read(_vc) (_vc)->read.enabled = 0
+#define disable_write(_vc) (_vc)->write.enabled = 0
+#define enable_read(_vc) (_vc)->read.enabled = 1
+#define enable_write(_vc) (_vc)->write.enabled = 1
+
+typedef struct iovec IOVec;
+#ifndef UIO_MAXIOV
+#define NET_MAX_IOV 16          // UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
+#else
+#define NET_MAX_IOV UIO_MAXIOV
+#endif
+
+// Global
+ClassAllocator<UnixNetVConnection> netVCAllocator("netVCAllocator");
+
+//
+// Reschedule a UnixNetVConnection by moving it
+// onto or off of the ready_list
+//
+static inline void
+read_reschedule(NetHandler *nh, UnixNetVConnection *vc)
+{
+  vc->ep.refresh(EVENTIO_READ);
+  if (vc->read.triggered && vc->read.enabled) {
+    nh->read_ready_list.in_or_enqueue(vc);
+  } else
+    nh->read_ready_list.remove(vc);
+}
+
+static inline void
+write_reschedule(NetHandler *nh, UnixNetVConnection *vc)
+{
+  vc->ep.refresh(EVENTIO_WRITE);
+  if (vc->write.triggered && vc->write.enabled) {
+    nh->write_ready_list.in_or_enqueue(vc);
+  } else
+    nh->write_ready_list.remove(vc);
+}
+
+void
+net_activity(UnixNetVConnection *vc, EThread *thread)
+{
+  (void) thread;
+#ifdef INACTIVITY_TIMEOUT
+  if (vc->inactivity_timeout && vc->inactivity_timeout_in && vc->inactivity_timeout->ethread == thread)
+    vc->inactivity_timeout->schedule_in(vc->inactivity_timeout_in);
+  else {
+    if (vc->inactivity_timeout)
+      vc->inactivity_timeout->cancel_action();
+    if (vc->inactivity_timeout_in) {
+      vc->inactivity_timeout = vc->thread->schedule_in_local(vc, vc->inactivity_timeout_in);
+    } else
+      vc->inactivity_timeout = 0;
+  }
+#else
+  if (vc->inactivity_timeout_in)
+    vc->next_inactivity_timeout_at = ink_get_hrtime() + vc->inactivity_timeout_in;
+  else
+    vc->next_inactivity_timeout_at = 0;
+#endif
+
+}
+
+//
+// Function used to close a UnixNetVConnection and free the vc
+//
+void
+close_UnixNetVConnection(UnixNetVConnection *vc, EThread *t)
+{
+  NetHandler *nh = vc->nh;
+  vc->cancel_OOB();
+  vc->ep.stop();
+  vc->con.close();
+#ifdef INACTIVITY_TIMEOUT
+  if (vc->inactivity_timeout) {
+    vc->inactivity_timeout->cancel_action(vc);
+    vc->inactivity_timeout = NULL;
+  }
+#else
+  vc->next_inactivity_timeout_at = 0;
+#endif
+  vc->inactivity_timeout_in = 0;
+  if (vc->active_timeout) {
+    vc->active_timeout->cancel_action(vc);
+    vc->active_timeout = NULL;
+  }
+  vc->active_timeout_in = 0;
+  nh->open_list.remove(vc);
+  nh->cop_list.remove(vc);
+  nh->read_ready_list.remove(vc);
+  nh->write_ready_list.remove(vc);
+  if (vc->read.in_enabled_list) {
+    nh->read_enable_list.remove(vc);
+    vc->read.in_enabled_list = 0;
+  }
+  if (vc->write.in_enabled_list) {
+    nh->write_enable_list.remove(vc);
+    vc->write.in_enabled_list = 0;
+  }
+  vc->free(t);
+}
+
+//
+// Signal an event
+//
+static inline int
+read_signal_and_update(int event, UnixNetVConnection *vc)
+{
+  vc->recursion++;
+  vc->read.vio._cont->handleEvent(event, &vc->read.vio);
+  if (!--vc->recursion && vc->closed) {
+    /* BZ  31932 */
+    ink_assert(vc->thread == this_ethread());
+    close_UnixNetVConnection(vc, vc->thread);
+    return EVENT_DONE;
+  } else {
+    return EVENT_CONT;
+  }
+}
+
+static inline int
+write_signal_and_update(int event, UnixNetVConnection *vc)
+{
+  vc->recursion++;
+  vc->write.vio._cont->handleEvent(event, &vc->write.vio);
+  if (!--vc->recursion && vc->closed) {
+    /* BZ  31932 */
+    ink_assert(vc->thread == this_ethread());
+    close_UnixNetVConnection(vc, vc->thread);
+    return EVENT_DONE;
+  } else {
+    return EVENT_CONT;
+  }
+}
+
+static inline int
+read_signal_done(int event, NetHandler *nh, UnixNetVConnection *vc)
+{
+  vc->read.enabled = 0;
+  if (read_signal_and_update(event, vc) == EVENT_DONE) {
+    return EVENT_DONE;
+  } else {
+    read_reschedule(nh, vc);
+    return EVENT_CONT;
+  }
+}
+
+static inline int
+write_signal_done(int event, NetHandler *nh, UnixNetVConnection *vc)
+{
+  vc->write.enabled = 0;
+  if (write_signal_and_update(event, vc) == EVENT_DONE) {
+    return EVENT_DONE;
+  } else {
+    write_reschedule(nh, vc);
+    return EVENT_CONT;
+  }
+}
+
+static inline int
+read_signal_error(NetHandler *nh, UnixNetVConnection *vc, int lerrno)
+{
+  vc->lerrno = lerrno;
+  return read_signal_done(VC_EVENT_ERROR, nh, vc);
+}
+
+static inline int
+write_signal_error(NetHandler *nh, UnixNetVConnection *vc, int lerrno)
+{
+  vc->lerrno = lerrno;
+  return write_signal_done(VC_EVENT_ERROR, nh, vc);
+}
+
+// Read the data for a UnixNetVConnection.
+// Rescheduling the UnixNetVConnection by moving the VC
+// onto or off of the ready_list.
+// Had to wrap this function with net_read_io for SSL.
+static void
+read_from_net(NetHandler *nh, UnixNetVConnection *vc, EThread *thread)
+{
+  NetState *s = &vc->read;
+  ProxyMutex *mutex = thread->mutex;
+  MIOBufferAccessor & buf = s->vio.buffer;
+  int64_t r = 0;
+
+  MUTEX_TRY_LOCK_FOR(lock, s->vio.mutex, thread, s->vio._cont);
+
+  if (!lock || lock.m.m_ptr != s->vio.mutex.m_ptr) {
+    read_reschedule(nh, vc);
+    return;
+  }
+  // if it is not enabled.
+  if (!s->enabled || s->vio.op != VIO::READ) {
+    read_disable(nh, vc);
+    return;
+  }
+
+  ink_assert(buf.writer());
+
+  // if there is nothing to do, disable connection
+  int64_t ntodo = s->vio.ntodo();
+  if (ntodo <= 0) {
+    read_disable(nh, vc);
+    return;
+  }
+  int64_t toread = buf.writer()->write_avail();
+  if (toread > ntodo)
+    toread = ntodo;
+
+  // read data
+  int64_t rattempted = 0, total_read = 0;
+  int niov = 0;
+  IOVec tiovec[NET_MAX_IOV];
+  if (toread) {
+    IOBufferBlock *b = buf.writer()->first_write_block();
+    do {
+      niov = 0;
+      rattempted = 0;
+      while (b && niov < NET_MAX_IOV) {
+        int64_t a = b->write_avail();
+        if (a > 0) {
+          tiovec[niov].iov_base = b->_end;
+          int64_t togo = toread - total_read - rattempted;
+          if (a > togo)
+            a = togo;
+          tiovec[niov].iov_len = a;
+          rattempted += a;
+          niov++;
+          if (a >= togo)
+            break;
+        }
+        b = b->next;
+      }
+
+      if (niov == 1) {
+        r = socketManager.read(vc->con.fd, tiovec[0].iov_base, tiovec[0].iov_len);
+      } else {
+        r = socketManager.readv(vc->con.fd, &tiovec[0], niov);
+      }
+      NET_DEBUG_COUNT_DYN_STAT(net_calls_to_read_stat, 1);
+      total_read += rattempted;
+    } while (r == rattempted && total_read < toread);
+
+    // if we have already moved some bytes successfully, summarize in r
+    if (total_read != rattempted) {
+      if (r <= 0)
+        r = total_read - rattempted;
+      else
+        r = total_read - rattempted + r;
+    }
+    // check for errors
+    if (r <= 0) {
+
+      if (r == -EAGAIN || r == -ENOTCONN) {
+        NET_DEBUG_COUNT_DYN_STAT(net_calls_to_read_nodata_stat, 1);
+        vc->read.triggered = 0;
+        nh->read_ready_list.remove(vc);
+        return;
+      }
+
+      if (!r || r == -ECONNRESET) {
+        vc->read.triggered = 0;
+        nh->read_ready_list.remove(vc);
+        read_signal_done(VC_EVENT_EOS, nh, vc);
+        return;
+      }
+      vc->read.triggered = 0;
+      read_signal_error(nh, vc, (int)-r);
+      return;
+    }
+    NET_SUM_DYN_STAT(net_read_bytes_stat, r);
+
+    // Add data to buffer and signal continuation.
+    buf.writer()->fill(r);
+#ifdef DEBUG
+    if (buf.writer()->write_avail() <= 0)
+      Debug("iocore_net", "read_from_net, read buffer full");
+#endif
+    s->vio.ndone += r;
+    net_activity(vc, thread);
+  } else
+    r = 0;
+
+  // Signal read ready, check if user is not done
+  if (r) {
+    // If there are no more bytes to read, signal read complete
+    ink_assert(ntodo >= 0);
+    if (s->vio.ntodo() <= 0) {
+      read_signal_done(VC_EVENT_READ_COMPLETE, nh, vc);
+      Debug("iocore_net", "read_from_net, read finished - signal done");
+      return;
+    } else {
+      if (read_signal_and_update(VC_EVENT_READ_READY, vc) != EVENT_CONT)
+        return;
+      // change of lock... don't look at shared variables!
+      if (lock.m.m_ptr != s->vio.mutex.m_ptr) {
+        read_reschedule(nh, vc);
+        return;
+      }
+    }
+  }
+  // If here are is no more room, or nothing to do, disable the connection
+  if (s->vio.ntodo() <= 0 || !s->enabled || !buf.writer()->write_avail()) {
+    read_disable(nh, vc);
+    return;
+  }
+
+  read_reschedule(nh, vc);
+}
+
+
+//
+// Write the data for a UnixNetVConnection.
+// Rescheduling the UnixNetVConnection when necessary.
+//
+void
+write_to_net(NetHandler *nh, UnixNetVConnection *vc, EThread *thread)
+{
+  ProxyMutex *mutex = thread->mutex;
+
+  NET_DEBUG_COUNT_DYN_STAT(net_calls_to_writetonet_stat, 1);
+  NET_DEBUG_COUNT_DYN_STAT(net_calls_to_writetonet_afterpoll_stat, 1);
+
+  write_to_net_io(nh, vc, thread);
+}
+
+
+void
+write_to_net_io(NetHandler *nh, UnixNetVConnection *vc, EThread *thread)
+{
+  NetState *s = &vc->write;
+  ProxyMutex *mutex = thread->mutex;
+
+  MUTEX_TRY_LOCK_FOR(lock, s->vio.mutex, thread, s->vio._cont);
+
+  if (!lock || lock.m.m_ptr != s->vio.mutex.m_ptr) {
+    write_reschedule(nh, vc);
+    return;
+  }
+
+  // This function will always return true unless
+  // vc is an SSLNetVConnection.
+  if (!vc->getSSLHandShakeComplete()) {
+    int err, ret;
+
+    if (vc->getSSLClientConnection())
+      ret = vc->sslStartHandShake(SSL_EVENT_CLIENT, err);
+    else
+      ret = vc->sslStartHandShake(SSL_EVENT_SERVER, err);
+
+    if (ret == EVENT_ERROR) {
+      vc->write.triggered = 0;
+      write_signal_error(nh, vc, err);
+    } else if (ret == SSL_HANDSHAKE_WANT_READ || ret == SSL_HANDSHAKE_WANT_ACCEPT || ret == SSL_HANDSHAKE_WANT_CONNECT
+               || ret == SSL_HANDSHAKE_WANT_WRITE) {
+      vc->read.triggered = 0;
+      nh->read_ready_list.remove(vc);
+      vc->write.triggered = 0;
+      nh->write_ready_list.remove(vc);
+      if (!(ret == SSL_HANDSHAKE_WANT_READ || ret == SSL_HANDSHAKE_WANT_ACCEPT))
+        write_reschedule(nh, vc);
+    } else if (ret == EVENT_DONE) {
+      vc->write.triggered = 1;
+      if (vc->write.enabled)
+        nh->write_ready_list.in_or_enqueue(vc);
+    } else
+      write_reschedule(nh, vc);
+    return;
+  }
+  // If it is not enabled,add to WaitList.
+  if (!s->enabled || s->vio.op != VIO::WRITE) {
+    write_disable(nh, vc);
+    return;
+  }
+  // If there is nothing to do, disable
+  int64_t ntodo = s->vio.ntodo();
+  if (ntodo <= 0) {
+    write_disable(nh, vc);
+    return;
+  }
+
+  MIOBufferAccessor & buf = s->vio.buffer;
+  ink_assert(buf.writer());
+
+  // Calculate amount to write
+  int64_t towrite = buf.reader()->read_avail();
+  if (towrite > ntodo)
+    towrite = ntodo;
+  int signalled = 0;
+
+  // signal write ready to allow user to fill the buffer
+  if (towrite != ntodo && buf.writer()->write_avail()) {
+    if (write_signal_and_update(VC_EVENT_WRITE_READY, vc) != EVENT_CONT) {
+      return;
+    }
+    ntodo = s->vio.ntodo();
+    if (ntodo <= 0) {
+      write_disable(nh, vc);
+      return;
+    }
+    signalled = 1;
+    // Recalculate amount to write
+    towrite = buf.reader()->read_avail();
+    if (towrite > ntodo)
+      towrite = ntodo;
+  }
+  // if there is nothing to do, disable
+  ink_assert(towrite >= 0);
+  if (towrite <= 0) {
+    write_disable(nh, vc);
+    return;
+  }
+
+  int64_t total_wrote = 0, wattempted = 0;
+  int needs = 0;
+  int64_t r = vc->load_buffer_and_write(towrite, wattempted, total_wrote, buf, needs);
+
+  // if we have already moved some bytes successfully, summarize in r
+  if (total_wrote != wattempted) {
+    if (r <= 0)
+      r = total_wrote - wattempted;
+    else
+      r = total_wrote - wattempted + r;
+  }
+  // check for errors
+  if (r <= 0) {                 // if the socket was not ready,add to WaitList
+    if (r == -EAGAIN || r == -ENOTCONN) {
+      NET_DEBUG_COUNT_DYN_STAT(net_calls_to_write_nodata_stat, 1);
+      if((needs & EVENTIO_WRITE) == EVENTIO_WRITE) {
+        vc->write.triggered = 0;
+        nh->write_ready_list.remove(vc);
+        write_reschedule(nh, vc);
+      }
+      if((needs & EVENTIO_READ) == EVENTIO_READ) {
+        vc->read.triggered = 0;
+        nh->read_ready_list.remove(vc);
+        read_reschedule(nh, vc);
+      }
+      return;
+    }
+    if (!r || r == -ECONNRESET) {
+      vc->write.triggered = 0;
+      write_signal_done(VC_EVENT_EOS, nh, vc);
+      return;
+    }
+    vc->write.triggered = 0;
+    write_signal_error(nh, vc, (int)-r);
+    return;
+  } else {
+    NET_SUM_DYN_STAT(net_write_bytes_stat, r);
+
+    // Remove data from the buffer and signal continuation.
+    ink_assert(buf.reader()->read_avail() >= r);
+    buf.reader()->consume(r);
+    ink_assert(buf.reader()->read_avail() >= 0);
+    s->vio.ndone += r;
+
+    net_activity(vc, thread);
+    // If there are no more bytes to write, signal write complete,
+    ink_assert(ntodo >= 0);
+    if (s->vio.ntodo() <= 0) {
+      write_signal_done(VC_EVENT_WRITE_COMPLETE, nh, vc);
+      return;
+    } else if (!signalled) {
+      if (write_signal_and_update(VC_EVENT_WRITE_READY, vc) != EVENT_CONT) {
+        return;
+      }
+      // change of lock... don't look at shared variables!
+      if (lock.m.m_ptr != s->vio.mutex.m_ptr) {
+        write_reschedule(nh, vc);
+        return;
+      }
+    }
+    if (!buf.reader()->read_avail()) {
+      write_disable(nh, vc);
+      return;
+    }
+
+    if((needs & EVENTIO_WRITE) == EVENTIO_WRITE) {
+      write_reschedule(nh, vc);
+    }
+    if((needs & EVENTIO_READ) == EVENTIO_READ) {
+      read_reschedule(nh, vc);
+    }
+    return;
+  }
+}
+
+bool
+UnixNetVConnection::get_data(int id, void *data)
+{
+  union {
+    TSVIO * vio;
+    void * data;
+  } ptr;
+
+  ptr.data = data;
+
+  switch (id) {
+  case TS_API_DATA_READ_VIO:
+    *ptr.vio = (TSVIO)&this->read.vio;
+    return true;
+  case TS_API_DATA_WRITE_VIO:
+    *ptr.vio = (TSVIO)&this->write.vio;
+    return true;
+  default:
+    return false;
+  }
+}
+
+VIO *
+UnixNetVConnection::do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf)
+{
+  ink_assert(!closed);
+  read.vio.op = VIO::READ;
+  read.vio.mutex = c->mutex;
+  read.vio._cont = c;
+  read.vio.nbytes = nbytes;
+  read.vio.ndone = 0;
+  read.vio.vc_server = (VConnection *) this;
+  if (buf) {
+    read.vio.buffer.writer_for(buf);
+    if (!read.enabled)
+      read.vio.reenable();
+  } else {
+    read.vio.buffer.clear();
+    disable_read(this);
+  }
+  return &read.vio;
+}
+
+VIO *
+UnixNetVConnection::do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *reader, bool owner)
+{
+  ink_assert(!closed);
+  write.vio.op = VIO::WRITE;
+  write.vio.mutex = c->mutex;
+  write.vio._cont = c;
+  write.vio.nbytes = nbytes;
+  write.vio.ndone = 0;
+  write.vio.vc_server = (VConnection *) this;
+  if (reader) {
+    ink_assert(!owner);
+    write.vio.buffer.reader_for(reader);
+    if (nbytes && !write.enabled)
+      write.vio.reenable();
+  } else {
+    disable_write(this);
+  }
+  return &write.vio;
+}
+
+void
+UnixNetVConnection::do_io_close(int alerrno /* = -1 */ )
+{
+  disable_read(this);
+  disable_write(this);
+  read.vio.buffer.clear();
+  read.vio.nbytes = 0;
+  read.vio.op = VIO::NONE;
+  write.vio.buffer.clear();
+  write.vio.nbytes = 0;
+  write.vio.op = VIO::NONE;
+
+  EThread *t = this_ethread();
+  bool close_inline = !recursion && nh->mutex->thread_holding == t;
+
+  INK_WRITE_MEMORY_BARRIER;
+  if (alerrno && alerrno != -1)
+    this->lerrno = alerrno;
+  if (alerrno == -1)
+    closed = 1;
+  else
+    closed = -1;
+
+  if (close_inline)
+    close_UnixNetVConnection(this, t);
+}
+
+void
+UnixNetVConnection::do_io_shutdown(ShutdownHowTo_t howto)
+{
+  switch (howto) {
+  case IO_SHUTDOWN_READ:
+    socketManager.shutdown(((UnixNetVConnection *) this)->con.fd, 0);
+    disable_read(this);
+    read.vio.buffer.clear();
+    read.vio.nbytes = 0;
+    f.shutdown = NET_VC_SHUTDOWN_READ;
+    break;
+  case IO_SHUTDOWN_WRITE:
+    socketManager.shutdown(((UnixNetVConnection *) this)->con.fd, 1);
+    disable_write(this);
+    write.vio.buffer.clear();
+    write.vio.nbytes = 0;
+    f.shutdown = NET_VC_SHUTDOWN_WRITE;
+    break;
+  case IO_SHUTDOWN_READWRITE:
+    socketManager.shutdown(((UnixNetVConnection *) this)->con.fd, 2);
+    disable_read(this);
+    disable_write(this);
+    read.vio.buffer.clear();
+    read.vio.nbytes = 0;
+    write.vio.buffer.clear();
+    write.vio.nbytes = 0;
+    f.shutdown = NET_VC_SHUTDOWN_READ | NET_VC_SHUTDOWN_WRITE;
+    break;
+  default:
+    ink_assert(!"not reached");
+  }
+}
+
+int
+OOB_callback::retry_OOB_send(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  ink_assert(mutex->thread_holding == this_ethread());
+  // the NetVC and the OOB_callback share a mutex
+  server_vc->oob_ptr = NULL;
+  server_vc->send_OOB(server_cont, data, length);
+  delete this;
+  return EVENT_DONE;
+}
+
+void
+UnixNetVConnection::cancel_OOB()
+{
+  UnixNetVConnection *u = (UnixNetVConnection *) this;
+  if (u->oob_ptr) {
+    if (u->oob_ptr->trigger) {
+      u->oob_ptr->trigger->cancel_action();
+      u->oob_ptr->trigger = NULL;
+    }
+    delete u->oob_ptr;
+    u->oob_ptr = NULL;
+  }
+}
+
+Action *
+UnixNetVConnection::send_OOB(Continuation *cont, char *buf, int len)
+{
+  UnixNetVConnection *u = (UnixNetVConnection *) this;
+  ink_assert(len > 0);
+  ink_assert(buf);
+  ink_assert(!u->oob_ptr);
+  int written;
+  ink_assert(cont->mutex->thread_holding == this_ethread());
+  written = socketManager.send(u->con.fd, buf, len, MSG_OOB);
+  if (written == len) {
+    cont->handleEvent(VC_EVENT_OOB_COMPLETE, NULL);
+    return ACTION_RESULT_DONE;
+  } else if (!written) {
+    cont->handleEvent(VC_EVENT_EOS, NULL);
+    return ACTION_RESULT_DONE;
+  }
+  if (written > 0 && written < len) {
+    u->oob_ptr = new OOB_callback(mutex, this, cont, buf + written, len - written);
+    u->oob_ptr->trigger = mutex->thread_holding->schedule_in_local(u->oob_ptr, HRTIME_MSECONDS(10));
+    return u->oob_ptr->trigger;
+  } else {
+    // should be a rare case : taking a new continuation should not be
+    // expensive for this
+    written = -errno;
+    ink_assert(written == -EAGAIN || written == -ENOTCONN);
+    u->oob_ptr = new OOB_callback(mutex, this, cont, buf, len);
+    u->oob_ptr->trigger = mutex->thread_holding->schedule_in_local(u->oob_ptr, HRTIME_MSECONDS(10));
+    return u->oob_ptr->trigger;
+  }
+}
+
+//
+// Function used to reenable the VC for reading or
+// writing.
+//
+void
+UnixNetVConnection::reenable(VIO *vio)
+{
+  if (STATE_FROM_VIO(vio)->enabled)
+    return;
+  set_enabled(vio);
+  if (!thread)
+    return;
+  EThread *t = vio->mutex->thread_holding;
+  ink_assert(t == this_ethread());
+  ink_assert(!closed);
+  if (nh->mutex->thread_holding == t) {
+    if (vio == &read.vio) {
+      ep.modify(EVENTIO_READ);
+      ep.refresh(EVENTIO_READ);
+      if (read.triggered)
+        nh->read_ready_list.in_or_enqueue(this);
+      else
+        nh->read_ready_list.remove(this);
+    } else {
+      ep.modify(EVENTIO_WRITE);
+      ep.refresh(EVENTIO_WRITE);
+      if (write.triggered)
+        nh->write_ready_list.in_or_enqueue(this);
+      else
+        nh->write_ready_list.remove(this);
+    }
+  } else {
+    MUTEX_TRY_LOCK(lock, nh->mutex, t);
+    if (!lock) {
+      if (vio == &read.vio) {
+        if (!read.in_enabled_list) {
+          read.in_enabled_list = 1;
+          nh->read_enable_list.push(this);
+        }
+      } else {
+        if (!write.in_enabled_list) {
+          write.in_enabled_list = 1;
+          nh->write_enable_list.push(this);
+        }
+      }
+      if (nh->trigger_event && nh->trigger_event->ethread->signal_hook)
+        nh->trigger_event->ethread->signal_hook(nh->trigger_event->ethread);
+    } else {
+      if (vio == &read.vio) {
+        ep.modify(EVENTIO_READ);
+        ep.refresh(EVENTIO_READ);
+        if (read.triggered)
+          nh->read_ready_list.in_or_enqueue(this);
+        else
+          nh->read_ready_list.remove(this);
+      } else {
+        ep.modify(EVENTIO_WRITE);
+        ep.refresh(EVENTIO_WRITE);
+        if (write.triggered)
+          nh->write_ready_list.in_or_enqueue(this);
+        else
+          nh->write_ready_list.remove(this);
+      }
+    }
+  }
+}
+
+void
+UnixNetVConnection::reenable_re(VIO *vio)
+{
+  if (!thread)
+    return;
+  EThread *t = vio->mutex->thread_holding;
+  ink_assert(t == this_ethread());
+  if (nh->mutex->thread_holding == t) {
+    set_enabled(vio);
+    if (vio == &read.vio) {
+      ep.modify(EVENTIO_READ);
+      ep.refresh(EVENTIO_READ);
+      if (read.triggered)
+        net_read_io(nh, t);
+      else
+        nh->read_ready_list.remove(this);
+    } else {
+      ep.modify(EVENTIO_WRITE);
+      ep.refresh(EVENTIO_WRITE);
+      if (write.triggered)
+        write_to_net(nh, this, t);
+      else
+        nh->write_ready_list.remove(this);
+    }
+  } else
+    reenable(vio);
+}
+
+
+UnixNetVConnection::UnixNetVConnection()
+  : closed(0), inactivity_timeout_in(0), active_timeout_in(0),
+#ifdef INACTIVITY_TIMEOUT
+    inactivity_timeout(NULL),
+#else
+    next_inactivity_timeout_at(0),
+#endif
+    active_timeout(NULL), nh(NULL),
+    id(0), flags(0), recursion(0), submit_time(0), oob_ptr(0),
+    from_accept_thread(false)
+{
+  memset(&local_addr, 0, sizeof local_addr);
+  memset(&server_addr, 0, sizeof server_addr);
+  SET_HANDLER((NetVConnHandler) & UnixNetVConnection::startEvent);
+}
+
+// Private methods
+
+void
+UnixNetVConnection::set_enabled(VIO *vio)
+{
+  ink_assert(vio->mutex->thread_holding == this_ethread() && thread);
+  ink_assert(!closed);
+  STATE_FROM_VIO(vio)->enabled = 1;
+#ifdef INACTIVITY_TIMEOUT
+  if (!inactivity_timeout && inactivity_timeout_in) {
+    if (vio->mutex->thread_holding == thread)
+      inactivity_timeout = thread->schedule_in_local(this, inactivity_timeout_in);
+    else
+      inactivity_timeout = thread->schedule_in(this, inactivity_timeout_in);
+  }
+#else
+  if (!next_inactivity_timeout_at && inactivity_timeout_in)
+    next_inactivity_timeout_at = ink_get_hrtime() + inactivity_timeout_in;
+#endif
+}
+
+void
+UnixNetVConnection::net_read_io(NetHandler *nh, EThread *lthread)
+{
+  read_from_net(nh, this, lthread);
+}
+
+// This code was pulled out of write_to_net so
+// I could overwrite it for the SSL implementation
+// (SSL read does not support overlapped i/o)
+// without duplicating all the code in write_to_net.
+int64_t
+UnixNetVConnection::load_buffer_and_write(int64_t towrite, int64_t &wattempted, int64_t &total_wrote, MIOBufferAccessor & buf, int &needs)
+{
+  int64_t r = 0;
+
+  // XXX Rather than dealing with the block directly, we should use the IOBufferReader API.
+  int64_t offset = buf.reader()->start_offset;
+  IOBufferBlock *b = buf.reader()->block;
+
+  do {
+    IOVec tiovec[NET_MAX_IOV];
+    int niov = 0;
+    int64_t total_wrote_last = total_wrote;
+    while (b && niov < NET_MAX_IOV) {
+      // check if we have done this block
+      int64_t l = b->read_avail();
+      l -= offset;
+      if (l <= 0) {
+        offset = -l;
+        b = b->next;
+        continue;
+      }
+      // check if to amount to write exceeds that in this buffer
+      int64_t wavail = towrite - total_wrote;
+      if (l > wavail)
+        l = wavail;
+      if (!l)
+        break;
+      total_wrote += l;
+      // build an iov entry
+      tiovec[niov].iov_len = l;
+      tiovec[niov].iov_base = b->start() + offset;
+      niov++;
+      // on to the next block
+      offset = 0;
+      b = b->next;
+    }
+    wattempted = total_wrote - total_wrote_last;
+    if (niov == 1)
+      r = socketManager.write(con.fd, tiovec[0].iov_base, tiovec[0].iov_len);
+    else
+      r = socketManager.writev(con.fd, &tiovec[0], niov);
+    ProxyMutex *mutex = thread->mutex;
+    NET_DEBUG_COUNT_DYN_STAT(net_calls_to_write_stat, 1);
+  } while (r == wattempted && total_wrote < towrite);
+
+  needs |= EVENTIO_WRITE;
+
+  return (r);
+}
+
+void
+UnixNetVConnection::readDisable(NetHandler *nh)
+{
+  read_disable(nh, this);
+}
+
+void
+UnixNetVConnection::readSignalError(NetHandler *nh, int err)
+{
+  read_signal_error(nh, this, err);
+}
+
+int
+UnixNetVConnection::readSignalDone(int event, NetHandler *nh)
+{
+  return (read_signal_done(event, nh, this));
+}
+
+
+int
+UnixNetVConnection::readSignalAndUpdate(int event)
+{
+  return (read_signal_and_update(event, this));
+}
+
+// Interface so SSL inherited class can call some static in-line functions
+// without affecting regular net stuff or copying a bunch of code into
+// the header files.
+void
+UnixNetVConnection::readReschedule(NetHandler *nh)
+{
+  read_reschedule(nh, this);
+}
+
+void
+UnixNetVConnection::writeReschedule(NetHandler *nh)
+{
+  write_reschedule(nh, this);
+}
+
+void
+UnixNetVConnection::netActivity(EThread *lthread)
+{
+  net_activity(this, lthread);
+}
+
+int
+UnixNetVConnection::startEvent(int /* event ATS_UNUSED */, Event *e)
+{
+  MUTEX_TRY_LOCK(lock, get_NetHandler(e->ethread)->mutex, e->ethread);
+  if (!lock) {
+    e->schedule_in(NET_RETRY_DELAY);
+    return EVENT_CONT;
+  }
+  if (!action_.cancelled)
+    connectUp(e->ethread, NO_FD);
+  else
+    free(e->ethread);
+  return EVENT_DONE;
+}
+
+int
+UnixNetVConnection::acceptEvent(int event, Event *e)
+{
+  thread = e->ethread;
+
+  MUTEX_TRY_LOCK(lock, get_NetHandler(thread)->mutex, e->ethread);
+  if (!lock) {
+    if (event == EVENT_NONE) {
+      thread->schedule_in(this, NET_RETRY_DELAY);
+      return EVENT_DONE;
+    } else {
+      e->schedule_in(NET_RETRY_DELAY);
+      return EVENT_CONT;
+    }
+  }
+
+  if (action_.cancelled) {
+    free(thread);
+    return EVENT_DONE;
+  }
+
+  SET_HANDLER((NetVConnHandler) & UnixNetVConnection::mainEvent);
+
+  nh = get_NetHandler(thread);
+  PollDescriptor *pd = get_PollDescriptor(thread);
+  if (ep.start(pd, this, EVENTIO_READ|EVENTIO_WRITE) < 0) {
+    Debug("iocore_net", "acceptEvent : failed EventIO::start\n");
+    close_UnixNetVConnection(this, e->ethread);
+    return EVENT_DONE;
+  }
+
+  nh->open_list.enqueue(this);
+
+  if (inactivity_timeout_in) {
+    UnixNetVConnection::set_inactivity_timeout(inactivity_timeout_in);
+  }
+
+  if (active_timeout_in) {
+    UnixNetVConnection::set_active_timeout(active_timeout_in);
+  }
+
+  action_.continuation->handleEvent(NET_EVENT_ACCEPT, this);
+  return EVENT_DONE;
+}
+
+//
+// The main event for UnixNetVConnections.
+// This is called by the Event subsystem to initialize the UnixNetVConnection
+// and for active and inactivity timeouts.
+//
+int
+UnixNetVConnection::mainEvent(int event, Event *e)
+{
+  ink_assert(event == EVENT_IMMEDIATE || event == EVENT_INTERVAL);
+  ink_assert(thread == this_ethread());
+
+  MUTEX_TRY_LOCK(hlock, get_NetHandler(thread)->mutex, e->ethread);
+  MUTEX_TRY_LOCK(rlock, read.vio.mutex ? (ProxyMutex *) read.vio.mutex : (ProxyMutex *) e->ethread->mutex, e->ethread);
+  MUTEX_TRY_LOCK(wlock, write.vio.mutex ? (ProxyMutex *) write.vio.mutex :
+                 (ProxyMutex *) e->ethread->mutex, e->ethread);
+  if (!hlock || !rlock || !wlock ||
+      (read.vio.mutex.m_ptr && rlock.m.m_ptr != read.vio.mutex.m_ptr) ||
+      (write.vio.mutex.m_ptr && wlock.m.m_ptr != write.vio.mutex.m_ptr)) {
+#ifndef INACTIVITY_TIMEOUT
+    if (e == active_timeout)
+#endif
+      e->schedule_in(NET_RETRY_DELAY);
+    return EVENT_CONT;
+  }
+  if (e->cancelled)
+    return EVENT_DONE;
+
+  int signal_event;
+  Event **signal_timeout;
+  Continuation *reader_cont = NULL;
+  Continuation *writer_cont = NULL;
+  ink_hrtime next_activity_timeout_at = 0;
+  ink_hrtime *signal_timeout_at = &next_activity_timeout_at;
+  Event *t = NULL;
+  signal_timeout = &t;
+
+#ifdef INACTIVITY_TIMEOUT
+  if (e == inactivity_timeout) {
+    signal_event = VC_EVENT_INACTIVITY_TIMEOUT;
+    signal_timeout = &inactivity_timeout;
+  }
+#else
+  if (event == EVENT_IMMEDIATE) {
+    /* BZ 49408 */
+    //ink_assert(inactivity_timeout_in);
+    //ink_assert(next_inactivity_timeout_at < ink_get_hrtime());
+    if (!inactivity_timeout_in || next_inactivity_timeout_at > ink_get_hrtime())
+      return EVENT_CONT;
+    signal_event = VC_EVENT_INACTIVITY_TIMEOUT;
+    signal_timeout_at = &next_inactivity_timeout_at;
+  }
+#endif
+  else {
+    ink_assert(e == active_timeout);
+    signal_event = VC_EVENT_ACTIVE_TIMEOUT;
+    signal_timeout = &active_timeout;
+  }
+  *signal_timeout = 0;
+  *signal_timeout_at = 0;
+  writer_cont = write.vio._cont;
+
+  if (closed) {
+    close_UnixNetVConnection(this, thread);
+    return EVENT_DONE;
+  }
+
+  if (read.vio.op == VIO::READ && !(f.shutdown & NET_VC_SHUTDOWN_READ)) {
+    reader_cont = read.vio._cont;
+    if (read_signal_and_update(signal_event, this) == EVENT_DONE)
+      return EVENT_DONE;
+  }
+
+  if (!*signal_timeout &&
+      !*signal_timeout_at &&
+      !closed && write.vio.op == VIO::WRITE &&
+      !(f.shutdown & NET_VC_SHUTDOWN_WRITE) && reader_cont != write.vio._cont && writer_cont == write.vio._cont)
+    if (write_signal_and_update(signal_event, this) == EVENT_DONE)
+      return EVENT_DONE;
+  return EVENT_DONE;
+}
+
+
+int
+UnixNetVConnection::connectUp(EThread *t, int fd)
+{
+  int res;
+
+  thread = t;
+  if (check_net_throttle(CONNECT, submit_time)) {
+    check_throttle_warning();
+    action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *) -ENET_THROTTLING);
+    free(t);
+    return CONNECT_FAILURE;
+  }
+
+  // Force family to agree with remote (server) address.
+  options.ip_family = server_addr.sa.sa_family;
+  
+  //
+  // Initialize this UnixNetVConnection
+  //
+  if (is_debug_tag_set("iocore_net")) {
+    char addrbuf[INET6_ADDRSTRLEN];
+    Debug("iocore_net", "connectUp:: local_addr=%s:%d [%s]\n",
+      options.local_ip.isValid()
+      ? options.local_ip.toString(addrbuf, sizeof(addrbuf))
+      : "*",
+      options.local_port,
+      NetVCOptions::toString(options.addr_binding)
+    );
+  }
+
+  // If this is getting called from the TS API, then we are wiring up a file descriptor
+  // provided by the caller. In that case, we know that the socket is already connected.
+  if (fd == NO_FD) {
+    res = con.open(options);
+    if (res != 0) {
+      goto fail;
+    }
+  } else {
+    int len = sizeof(con.sock_type);
+
+    res = safe_getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&con.sock_type, &len);
+    if (res != 0) {
+      goto fail;
+    }
+
+    safe_nonblocking(fd);
+    con.fd = fd;
+    con.is_connected = true;
+    con.is_bound = true;
+  }
+
+  // Must connect after EventIO::Start() to avoid a race condition
+  // when edge triggering is used.
+  if (ep.start(get_PollDescriptor(t), this, EVENTIO_READ|EVENTIO_WRITE) < 0) {
+    lerrno = errno;
+    Debug("iocore_net", "connectUp : Failed to add to epoll list\n");
+    action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *)0); // 0 == res
+    free(t);
+    return CONNECT_FAILURE;
+  }
+
+  if (fd == NO_FD) {
+    res = con.connect(&server_addr.sa, options);
+    if (res != 0) {
+      goto fail;
+    }
+  }
+
+  check_emergency_throttle(con);
+
+  // start up next round immediately
+
+  SET_HANDLER(&UnixNetVConnection::mainEvent);
+
+  nh = get_NetHandler(t);
+  nh->open_list.enqueue(this);
+
+  ink_assert(!inactivity_timeout_in);
+  ink_assert(!active_timeout_in);
+  action_.continuation->handleEvent(NET_EVENT_OPEN, this);
+  return CONNECT_SUCCESS;
+
+fail:
+  lerrno = errno;
+  action_.continuation->handleEvent(NET_EVENT_OPEN_FAILED, (void *)(intptr_t)res);
+  free(t);
+  return CONNECT_FAILURE;
+}
+
+
+void
+UnixNetVConnection::free(EThread *t)
+{
+  NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, -1);
+  // clear variables for reuse
+  this->mutex.clear();
+  action_.mutex.clear();
+  got_remote_addr = 0;
+  got_local_addr = 0;
+  read.vio.mutex.clear();
+  write.vio.mutex.clear();
+  flags = 0;
+  SET_CONTINUATION_HANDLER(this, (NetVConnHandler) & UnixNetVConnection::startEvent);
+  nh = NULL;
+  read.triggered = 0;
+  write.triggered = 0;
+  options.reset();
+  closed = 0;
+  ink_assert(!read.ready_link.prev && !read.ready_link.next);
+  ink_assert(!read.enable_link.next);
+  ink_assert(!write.ready_link.prev && !write.ready_link.next);
+  ink_assert(!write.enable_link.next);
+  ink_assert(!link.next && !link.prev);
+  ink_assert(!active_timeout);
+  ink_assert(con.fd == NO_FD);
+  ink_assert(t == this_ethread());
+
+  if (from_accept_thread) {
+    netVCAllocator.free(this);  
+  } else {
+    THREAD_FREE(this, netVCAllocator, t);
+  }
+}
+
+void
+UnixNetVConnection::apply_options()
+{
+  con.apply_options(options);
+}
diff --git a/iocore/net/UnixUDPConnection.cc b/iocore/net/UnixUDPConnection.cc
new file mode 100644
index 00000000..1c6d29e6
--- /dev/null
+++ b/iocore/net/UnixUDPConnection.cc
@@ -0,0 +1,158 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  UnixUDPConnection.cc
+  Unix UDPConnection implementation
+
+
+ ****************************************************************************/
+
+#include "P_Net.h"
+#include "P_UDPNet.h"
+
+UnixUDPConnection::~UnixUDPConnection()
+{
+  UDPPacketInternal *p = (UDPPacketInternal *) ink_atomiclist_popall(&inQueue);
+
+  if (!tobedestroyed)
+    tobedestroyed = 1;
+
+  if (p) {
+    UDPPacketInternal *pnext = NULL;
+    while (p) {
+      pnext = p->alink.next;
+      p->alink.next = NULL;
+      p->free();
+      p = pnext;
+    }
+  }
+  if (callbackAction) {
+    callbackAction->cancel();
+    callbackAction = NULL;
+  }
+  Debug("udpnet", "Destroying udp port = %d", getPortNum());
+  if (fd != NO_FD) {
+    socketManager.close(fd);
+  }
+  fd = NO_FD;
+}
+
+// called with continuation lock taken out
+// We call Release because AddRef was called before entering here.
+int
+UnixUDPConnection::callbackHandler(int event, void *data)
+{
+  (void) event;
+  (void) data;
+  callbackAction = NULL;
+  if (continuation == NULL)
+    return EVENT_CONT;
+
+  if (m_errno) {
+    if (!shouldDestroy())
+      continuation->handleEvent(NET_EVENT_DATAGRAM_ERROR, this);
+    destroy();                  // don't destroy until after calling back with error
+    Release();
+    return EVENT_CONT;
+  } else {
+    UDPPacketInternal *p = (UDPPacketInternal *) ink_atomiclist_popall(&inQueue);
+    if (p) {
+      Debug("udpnet", "UDPConnection::callbackHandler");
+      UDPPacketInternal *pnext = NULL;
+      Queue<UDPPacketInternal> result;
+      while (p) {
+        pnext = p->alink.next;
+        p->alink.next = NULL;
+        result.push(p);
+        p = pnext;
+      }
+      if (!shouldDestroy())
+        continuation->handleEvent(NET_EVENT_DATAGRAM_READ_READY, &result);
+      else {
+        while ((p = result.dequeue()))
+          p->free();
+      }
+    }
+  }
+  Release();
+  return EVENT_CONT;
+}
+
+void
+UDPConnection::bindToThread(Continuation * c)
+{
+  UnixUDPConnection *uc = (UnixUDPConnection *) this;
+  //add to new connections queue for EThread.
+  EThread *t = eventProcessor.assign_thread(ET_UDP);
+  ink_assert(t);
+  ink_assert(get_UDPNetHandler(t));
+  uc->ethread = t;
+  AddRef();
+  uc->continuation = c;
+  mutex = c->mutex;
+  ink_atomiclist_push(&get_UDPNetHandler(t)->udpNewConnections, uc);
+}
+
+Action *
+UDPConnection::send(Continuation * c, UDPPacket * xp)
+{
+  UDPPacketInternal *p = (UDPPacketInternal *) xp;
+  UnixUDPConnection *conn = (UnixUDPConnection *) this;
+
+  if (shouldDestroy()) {
+    ink_assert(!"freeing packet sent on dead connection");
+    p->free();
+    return ACTION_RESULT_NONE;
+  }
+
+  ink_assert(mutex == c->mutex);
+  p->setContinuation(c);
+  p->setConnection(this);
+  conn->continuation = c;
+  ink_assert(conn->continuation != NULL);
+  mutex = c->mutex;
+  p->reqGenerationNum = conn->sendGenerationNum;
+  get_UDPNetHandler(conn->ethread)->udpOutQueue.send(p);
+  return ACTION_RESULT_NONE;
+}
+
+void
+UDPConnection::Release()
+{
+  UnixUDPConnection *p = (UnixUDPConnection *) this;
+
+  p->ep.stop();
+
+  if (ink_atomic_increment(&p->refcount, -1) == 1) {
+    ink_assert(p->callback_link.next == NULL);
+    ink_assert(p->callback_link.prev == NULL);
+    ink_assert(p->polling_link.next == NULL);
+    ink_assert(p->polling_link.prev == NULL);
+    ink_assert(p->newconn_alink.next == NULL);
+
+    delete this;
+  }
+}
+
diff --git a/iocore/net/UnixUDPNet.cc b/iocore/net/UnixUDPNet.cc
new file mode 100644
index 00000000..9201fdf9
--- /dev/null
+++ b/iocore/net/UnixUDPNet.cc
@@ -0,0 +1,890 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  UnixUDPNet.cc
+  UDPNet implementation
+
+
+ ****************************************************************************/
+
+#include "P_Net.h"
+#include "P_UDPNet.h"
+
+typedef int (UDPNetHandler::*UDPNetContHandler) (int, void *);
+
+inkcoreapi ClassAllocator<UDPPacketInternal> udpPacketAllocator("udpPacketAllocator");
+EventType ET_UDP;
+
+#if defined(linux) && !defined(DEBUG)
+#define NODIAGS
+#endif
+
+//
+// Global Data
+//
+
+UDPNetProcessorInternal udpNetInternal;
+UDPNetProcessor &udpNet = udpNetInternal;
+
+int32_t g_udp_periodicCleanupSlots;
+int32_t g_udp_periodicFreeCancelledPkts;
+int32_t g_udp_numSendRetries;
+
+#include "P_LibBulkIO.h"
+
+//
+// Public functions
+// See header for documentation
+//
+int G_bwGrapherFd;
+sockaddr_in6 G_bwGrapherLoc;
+
+void
+initialize_thread_for_udp_net(EThread * thread)
+{
+  new((ink_dummy_for_new *) get_UDPPollCont(thread)) PollCont(thread->mutex);
+  new((ink_dummy_for_new *) get_UDPNetHandler(thread)) UDPNetHandler;
+
+  // This variable controls how often we cleanup the cancelled packets.
+  // If it is set to 0, then cleanup never occurs.
+  REC_ReadConfigInt32(g_udp_periodicFreeCancelledPkts, "proxy.config.udp.free_cancelled_pkts_sec");
+
+  // This variable controls how many "slots" of the udp calendar queue we cleanup.
+  // If it is set to 0, then cleanup never occurs.  This value makes sense
+  // only if the above variable is set.
+  REC_ReadConfigInt32(g_udp_periodicCleanupSlots, "proxy.config.udp.periodic_cleanup");
+
+  // UDP sends can fail with errno=EAGAIN.  This variable determines the # of
+  // times the UDP thread retries before giving up.  Set to 0 to keep trying forever.
+  REC_ReadConfigInt32(g_udp_numSendRetries, "proxy.config.udp.send_retries");
+  g_udp_numSendRetries = g_udp_numSendRetries < 0 ? 0 : g_udp_numSendRetries;
+
+  thread->schedule_every(get_UDPPollCont(thread), -9);
+  thread->schedule_imm(get_UDPNetHandler(thread));
+}
+
+int
+UDPNetProcessorInternal::start(int n_upd_threads, size_t stacksize)
+{
+  if (n_upd_threads < 1)
+    return -1;
+
+  ET_UDP = eventProcessor.spawn_event_threads(n_upd_threads, "ET_UDP", stacksize);
+  if (ET_UDP < 0)               // Probably can't happen, maybe at some point EventType should be unsigned ?
+    return -1;
+
+  pollCont_offset = eventProcessor.allocate(sizeof(PollCont));
+  udpNetHandler_offset = eventProcessor.allocate(sizeof(UDPNetHandler));
+
+  for (int i = 0; i < eventProcessor.n_threads_for_type[ET_UDP]; i++)
+    initialize_thread_for_udp_net(eventProcessor.eventthread[ET_UDP][i]);
+
+  return 0;
+}
+
+void
+UDPNetProcessorInternal::udp_read_from_net(UDPNetHandler * nh, UDPConnection * xuc)
+{
+  UnixUDPConnection *uc = (UnixUDPConnection *) xuc;
+
+  // receive packet and queue onto UDPConnection.
+  // don't call back connection at this time.
+  int r;
+  int iters = 0;
+  do {
+    sockaddr_in6 fromaddr;
+    socklen_t fromlen = sizeof(fromaddr);
+    // XXX: want to be 0 copy.
+    // XXX: really should read into next contiguous region of an IOBufferData
+    // which gets referenced by IOBufferBlock.
+    char buf[65536];
+    int buflen = sizeof(buf);
+    r = socketManager.recvfrom(uc->getFd(), buf, buflen, 0, (struct sockaddr *) &fromaddr, &fromlen);
+    if (r <= 0) {
+      // error
+      break;
+    }
+    // create packet
+    UDPPacket *p = new_incoming_UDPPacket(ats_ip_sa_cast(&fromaddr), buf, r);
+    p->setConnection(uc);
+    // queue onto the UDPConnection
+    ink_atomiclist_push(&uc->inQueue, p);
+    iters++;
+  } while (r > 0);
+  if (iters >= 1) {
+    Debug("udp-read", "read %d at a time", iters);
+  }
+  // if not already on to-be-called-back queue, then add it.
+  if (!uc->onCallbackQueue) {
+    ink_assert(uc->callback_link.next == NULL);
+    ink_assert(uc->callback_link.prev == NULL);
+    uc->AddRef();
+    nh->udp_callbacks.enqueue(uc);
+    uc->onCallbackQueue = 1;
+  }
+}
+
+
+int
+UDPNetProcessorInternal::udp_callback(UDPNetHandler * nh, UDPConnection * xuc, EThread * thread)
+{
+  (void) nh;
+  UnixUDPConnection *uc = (UnixUDPConnection *) xuc;
+
+  if (uc->continuation && uc->mutex) {
+    MUTEX_TRY_LOCK_FOR(lock, uc->mutex, thread, uc->continuation);
+    if (!lock) {
+      return 1;
+    }
+    uc->AddRef();
+    uc->callbackHandler(0, 0);
+    return 0;
+  } else {
+    ink_assert(!"doesn't reach here");
+    if (!uc->callbackAction) {
+      uc->AddRef();
+      uc->callbackAction = eventProcessor.schedule_imm(uc);
+    }
+    return 0;
+  }
+}
+
+// cheesy implementation of a asynchronous read and callback for Unix
+class UDPReadContinuation:public Continuation
+{
+public:
+  UDPReadContinuation(Event * completionToken);
+  UDPReadContinuation();
+  ~UDPReadContinuation();
+  inline void free(void);
+  inline void init_token(Event * completionToken);
+  inline void init_read(int fd, IOBufferBlock * buf, int len, struct sockaddr *fromaddr, socklen_t *fromaddrlen);
+
+  void set_timer(int seconds)
+  {
+    timeout_interval = HRTIME_SECONDS(seconds);
+  }
+
+  void cancel();
+  int readPollEvent(int event, Event * e);
+
+  Action *getAction()
+  {
+    return event;
+  }
+
+  void setupPollDescriptor();
+
+private:
+  Event * event;                // the completion event token created
+  // on behalf of the client
+  Ptr<IOBufferBlock> readbuf;
+  int readlen;
+  struct sockaddr_in6 *fromaddr;
+  socklen_t *fromaddrlen;
+  int fd;                       // fd we are reading from
+  int ifd;                      // poll fd index
+  ink_hrtime period;            // polling period
+  ink_hrtime elapsed_time;
+  ink_hrtime timeout_interval;
+};
+
+ClassAllocator<UDPReadContinuation> udpReadContAllocator("udpReadContAllocator");
+
+#define UNINITIALIZED_EVENT_PTR (Event *)0xdeadbeef
+
+UDPReadContinuation::UDPReadContinuation(Event * completionToken)
+  : Continuation(NULL), event(completionToken), readbuf(NULL), readlen(0), fromaddrlen(0), fd(-1),
+    ifd(-1), period(0), elapsed_time(0), timeout_interval(0)
+{
+  if (completionToken->continuation)
+    this->mutex = completionToken->continuation->mutex;
+  else
+    this->mutex = new_ProxyMutex();
+}
+
+UDPReadContinuation::UDPReadContinuation()
+  : Continuation(NULL), event(UNINITIALIZED_EVENT_PTR), readbuf(NULL), readlen(0), fromaddrlen(0), fd(-1),
+    ifd(-1), period(0), elapsed_time(0), timeout_interval(0)
+{ }
+
+inline void
+UDPReadContinuation::free(void)
+{
+  ink_assert(event != NULL);
+  completionUtil::destroy(event);
+  event = NULL;
+  readbuf = NULL;
+  readlen = 0;
+  fromaddrlen = 0;
+  fd = -1;
+  ifd = -1;
+  period = 0;
+  elapsed_time = 0;
+  timeout_interval = 0;
+  mutex = NULL;
+  udpReadContAllocator.free(this);
+}
+
+inline void
+UDPReadContinuation::init_token(Event * completionToken)
+{
+  if (completionToken->continuation) {
+    this->mutex = completionToken->continuation->mutex;
+  } else {
+    this->mutex = new_ProxyMutex();
+  }
+  event = completionToken;
+}
+
+inline void
+UDPReadContinuation::init_read(int rfd, IOBufferBlock * buf, int len, struct sockaddr *fromaddr_, socklen_t *fromaddrlen_)
+{
+  ink_assert(rfd >= 0 && buf != NULL && fromaddr_ != NULL && fromaddrlen_ != NULL);
+  fd = rfd;
+  readbuf = buf;
+  readlen = len;
+  fromaddr = ats_ip6_cast(fromaddr_);
+  fromaddrlen = fromaddrlen_;
+  SET_HANDLER(&UDPReadContinuation::readPollEvent);
+  period = NET_PERIOD;
+  setupPollDescriptor();
+  this_ethread()->schedule_every(this, period);
+}
+
+UDPReadContinuation::~UDPReadContinuation()
+{
+  if (event != UNINITIALIZED_EVENT_PTR)
+  {
+    ink_assert(event != NULL);
+    completionUtil::destroy(event);
+    event = NULL;
+  }
+}
+
+void
+UDPReadContinuation::cancel()
+{
+  // I don't think this actually cancels it correctly right now.
+  event->cancel();
+}
+
+void
+UDPReadContinuation::setupPollDescriptor()
+{
+#if TS_USE_EPOLL
+  Pollfd *pfd;
+  EThread *et = (EThread *) this_thread();
+  PollCont *pc = get_PollCont(et);
+  if (pc->nextPollDescriptor == NULL) {
+    pc->nextPollDescriptor = new PollDescriptor;
+    pc->nextPollDescriptor->init();
+  }
+  pfd = pc->nextPollDescriptor->alloc();
+  pfd->fd = fd;
+  ifd = pfd - pc->nextPollDescriptor->pfd;
+  ink_assert(pc->nextPollDescriptor->nfds > ifd);
+  pfd->events = POLLIN;
+  pfd->revents = 0;
+#endif
+}
+
+int
+UDPReadContinuation::readPollEvent(int event_, Event * e)
+{
+  (void) event_;
+  (void) e;
+
+  //PollCont *pc = get_PollCont(e->ethread);
+  Continuation *c;
+
+  if (event->cancelled) {
+    e->cancel();
+    free();
+    //    delete this;
+    return EVENT_DONE;
+  }
+  // See if the request has timed out
+  if (timeout_interval) {
+    elapsed_time += -period;
+    if (elapsed_time >= timeout_interval) {
+      c = completionUtil::getContinuation(event);
+      // TODO: Should we deal with the return code?
+      c->handleEvent(NET_EVENT_DATAGRAM_READ_ERROR, event);
+      e->cancel();
+      free();
+      //      delete this;
+      return EVENT_DONE;
+    }
+  }
+  //ink_assert(ifd < 0 || event_ == EVENT_INTERVAL || (event_ == EVENT_POLL && pc->pollDescriptor->nfds > ifd && pc->pollDescriptor->pfd[ifd].fd == fd));
+  //if (ifd < 0 || event_ == EVENT_INTERVAL || (pc->pollDescriptor->pfd[ifd].revents & POLLIN)) {
+  //ink_assert(!"incomplete");
+  c = completionUtil::getContinuation(event);
+  // do read
+  socklen_t tmp_fromlen = *fromaddrlen;
+  int rlen = socketManager.recvfrom(fd, readbuf->end(), readlen, 0, ats_ip_sa_cast(fromaddr), &tmp_fromlen);
+
+  completionUtil::setThread(event, e->ethread);
+  // call back user with their event
+  if (rlen > 0) {
+    // do callback if read is successful
+    *fromaddrlen = tmp_fromlen;
+    completionUtil::setInfo(event, fd, readbuf, rlen, errno);
+    readbuf->fill(rlen);
+    // TODO: Should we deal with the return code?
+    c->handleEvent(NET_EVENT_DATAGRAM_READ_COMPLETE, event);
+    e->cancel();
+    free();
+    // delete this;
+    return EVENT_DONE;
+  } else if (rlen < 0 && rlen != -EAGAIN) {
+    // signal error.
+    *fromaddrlen = tmp_fromlen;
+    completionUtil::setInfo(event, fd, (IOBufferBlock *) readbuf, rlen, errno);
+    c = completionUtil::getContinuation(event);
+    // TODO: Should we deal with the return code?
+    c->handleEvent(NET_EVENT_DATAGRAM_READ_ERROR, event);
+    e->cancel();
+    free();
+    //delete this;
+    return EVENT_DONE;
+  } else {
+    completionUtil::setThread(event, NULL);
+  }
+
+  if (event->cancelled) {
+    e->cancel();
+    free();
+    //delete this;
+    return EVENT_DONE;
+  }
+  // reestablish poll
+  setupPollDescriptor();
+
+  return EVENT_CONT;
+}
+
+/* recvfrom:
+ * Unix:
+ *   assert(buf->write_avail() >= len);
+ *   *actual_len = recvfrom(fd,addr,buf->end(),len)
+ *   if successful then
+ *      buf->fill(*actual_len);
+ *	    return ACTION_RESULT_DONE
+ *   else if nothing read
+ *      *actual_len is 0
+ *      create "UDP read continuation" C with 'cont's lock
+ *         set user callback to 'cont'
+ *      return C's action.
+ *   else
+ *      return error;
+ */
+Action *
+UDPNetProcessor::recvfrom_re(Continuation * cont,
+                             void *token,
+                             int fd,
+                             struct sockaddr * fromaddr, socklen_t *fromaddrlen,
+                             IOBufferBlock * buf, int len, bool useReadCont, int timeout)
+{
+  (void) useReadCont;
+  ink_assert(buf->write_avail() >= len);
+  int actual;
+  Event *event = completionUtil::create();
+
+  completionUtil::setContinuation(event, cont);
+  completionUtil::setHandle(event, token);
+  actual = socketManager.recvfrom(fd, buf->end(), len, 0, fromaddr, fromaddrlen);
+
+  if (actual > 0) {
+    completionUtil::setThread(event, this_ethread());
+    completionUtil::setInfo(event, fd, buf, actual, errno);
+    buf->fill(actual);
+    cont->handleEvent(NET_EVENT_DATAGRAM_READ_COMPLETE, event);
+    completionUtil::destroy(event);
+    return ACTION_RESULT_DONE;
+  } else if (actual == 0 || (actual < 0 && actual == -EAGAIN)) {
+    UDPReadContinuation *c = udpReadContAllocator.alloc();
+    c->init_token(event);
+    c->init_read(fd, buf, len, fromaddr, fromaddrlen);
+    if (timeout) {
+      c->set_timer(timeout);
+    }
+    return event;
+  } else {
+    completionUtil::setThread(event, this_ethread());
+    completionUtil::setInfo(event, fd, buf, actual, errno);
+    cont->handleEvent(NET_EVENT_DATAGRAM_READ_ERROR, event);
+    completionUtil::destroy(event);
+    return ACTION_IO_ERROR;
+  }
+}
+
+/* sendmsg:
+ * Unix:
+ *   *actual_len = sendmsg(fd,msg,default-flags);
+ *   if successful,
+ *      return ACTION_RESULT_DONE
+ *   else
+ *      return error
+ */
+Action *
+UDPNetProcessor::sendmsg_re(Continuation * cont, void *token, int fd, struct msghdr * msg)
+{
+  int actual;
+  Event *event = completionUtil::create();
+
+  completionUtil::setContinuation(event, cont);
+  completionUtil::setHandle(event, token);
+
+  actual = socketManager.sendmsg(fd, msg, 0);
+  if (actual >= 0) {
+    completionUtil::setThread(event, this_ethread());
+    completionUtil::setInfo(event, fd, msg, actual, errno);
+    cont->handleEvent(NET_EVENT_DATAGRAM_WRITE_COMPLETE, event);
+    completionUtil::destroy(event);
+    return ACTION_RESULT_DONE;
+  } else {
+    completionUtil::setThread(event, this_ethread());
+    completionUtil::setInfo(event, fd, msg, actual, errno);
+    cont->handleEvent(NET_EVENT_DATAGRAM_WRITE_ERROR, event);
+    completionUtil::destroy(event);
+    return ACTION_IO_ERROR;
+  }
+}
+
+/* sendto:
+ * If this were implemented, it might be implemented like this:
+ * Unix:
+ *   call sendto(fd,addr,buf->reader()->start(),len);
+ *   if successful,
+ *      buf->consume(len);
+ *      return ACTION_RESULT_DONE
+ *   else
+ *      return error
+ *
+ */
+Action *
+UDPNetProcessor::sendto_re(Continuation * cont, void *token, int fd, struct sockaddr const* toaddr, int toaddrlen,
+                           IOBufferBlock * buf, int len)
+{
+  (void) token;
+  ink_assert(buf->read_avail() >= len);
+  int nbytes_sent = socketManager.sendto(fd, buf->start(), len, 0, toaddr, toaddrlen);
+
+  if (nbytes_sent >= 0) {
+    ink_assert(nbytes_sent == len);
+    buf->consume(nbytes_sent);
+    cont->handleEvent(NET_EVENT_DATAGRAM_WRITE_COMPLETE, (void *) -1);
+    return ACTION_RESULT_DONE;
+  } else {
+    cont->handleEvent(NET_EVENT_DATAGRAM_WRITE_ERROR, (void *)(intptr_t)nbytes_sent);
+    return ACTION_IO_ERROR;
+  }
+}
+
+
+bool
+UDPNetProcessor::CreateUDPSocket(int *resfd, sockaddr const* remote_addr, sockaddr* local_addr,
+                                 int *local_addr_len, Action ** status, int send_bufsize, int recv_bufsize)
+{
+  int res = 0, fd = -1;
+
+  ink_assert(ats_ip_are_compatible(remote_addr, local_addr));
+
+  *resfd = -1;
+  if ((res = socketManager.socket(remote_addr->sa_family, SOCK_DGRAM, 0)) < 0)
+    goto HardError;
+  fd = res;
+  if ((res = safe_fcntl(fd, F_SETFL, O_NONBLOCK)) < 0)
+    goto HardError;
+  if ((res = socketManager.ink_bind(fd, remote_addr, ats_ip_size(remote_addr), IPPROTO_UDP)) < 0) {
+    char buff[INET6_ADDRPORTSTRLEN];
+    Debug("udpnet", "ink bind failed on %s", ats_ip_nptop(remote_addr, buff, sizeof(buff)));
+    goto SoftError;
+  }
+
+  if (recv_bufsize) {
+    if (unlikely(socketManager.set_rcvbuf_size(fd, recv_bufsize)))
+      Debug("udpnet", "set_dnsbuf_size(%d) failed", recv_bufsize);
+  }
+  if (send_bufsize) {
+    if (unlikely(socketManager.set_sndbuf_size(fd, send_bufsize)))
+      Debug("udpnet", "set_dnsbuf_size(%d) failed", send_bufsize);
+  }
+  if ((res = safe_getsockname(fd, local_addr, local_addr_len)) < 0) {
+    Debug("udpnet", "CreateUdpsocket: getsockname didnt' work");
+    goto HardError;
+  }
+  *resfd = fd;
+  *status = NULL;
+  Debug("udpnet", "creating a udp socket port = %d, %d---success",
+    ats_ip_port_host_order(remote_addr), ats_ip_port_host_order(local_addr)
+  );
+  return true;
+SoftError:
+  Debug("udpnet", "creating a udp socket port = %d---soft failure",
+    ats_ip_port_host_order(local_addr)
+  );
+  if (fd != -1)
+    socketManager.close(fd);
+  *resfd = -1;
+  *status = NULL;
+  return false;
+HardError:
+  Debug("udpnet", "creating a udp socket port = %d---hard failure",
+    ats_ip_port_host_order(local_addr)
+  );
+  if (fd != -1)
+    socketManager.close(fd);
+  *resfd = -1;
+  *status = ACTION_IO_ERROR;
+  return false;
+}
+
+
+Action *
+UDPNetProcessor::UDPBind(Continuation * cont, sockaddr const* addr, int send_bufsize, int recv_bufsize)
+{
+  int res = 0;
+  int fd = -1;
+  UnixUDPConnection *n = NULL;
+  IpEndpoint myaddr;
+  int myaddr_len = sizeof(myaddr);
+
+  if ((res = socketManager.socket(addr->sa_family, SOCK_DGRAM, 0)) < 0)
+    goto Lerror;
+  fd = res;
+  if ((res = fcntl(fd, F_SETFL, O_NONBLOCK) < 0))
+    goto Lerror;
+
+  // If this is a class D address (i.e. multicast address), use REUSEADDR.
+  if (ats_is_ip_multicast(addr)) {
+    int enable_reuseaddr = 1;
+
+    if ((res = safe_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &enable_reuseaddr, sizeof(enable_reuseaddr)) < 0)) {
+      goto Lerror;
+    }
+  }
+
+  if ((res = socketManager.ink_bind(fd, addr, ats_ip_size(addr))) < 0) {
+    goto Lerror;
+  }
+
+  if (recv_bufsize) {
+    if (unlikely(socketManager.set_rcvbuf_size(fd, recv_bufsize)))
+      Debug("udpnet", "set_dnsbuf_size(%d) failed", recv_bufsize);
+  }
+  if (send_bufsize) {
+    if (unlikely(socketManager.set_sndbuf_size(fd, send_bufsize)))
+      Debug("udpnet", "set_dnsbuf_size(%d) failed", send_bufsize);
+  }
+  if ((res = safe_getsockname(fd, &myaddr.sa, &myaddr_len)) < 0) {
+    goto Lerror;
+  }
+  n = new UnixUDPConnection(fd);
+
+  Debug("udpnet", "UDPNetProcessor::UDPBind: %p fd=%d", n, fd);
+  n->setBinding(&myaddr.sa);
+  n->bindToThread(cont);
+
+  cont->handleEvent(NET_EVENT_DATAGRAM_OPEN, n);
+  return ACTION_RESULT_DONE;
+Lerror:
+  if (fd != NO_FD)
+    socketManager.close(fd);
+  cont->handleEvent(NET_EVENT_DATAGRAM_ERROR, NULL);
+  return ACTION_IO_ERROR;
+}
+
+
+// send out all packets that need to be sent out as of time=now
+UDPQueue::UDPQueue()
+  : last_report(0), last_service(0), packets(0), added(0)
+{ }
+
+UDPQueue::~UDPQueue()
+{
+}
+
+/*
+ * Driver function that aggregates packets across cont's and sends them
+ */
+void
+UDPQueue::service(UDPNetHandler * nh)
+{
+  (void) nh;
+  ink_hrtime now = ink_get_hrtime_internal();
+  uint64_t timeSpent = 0;
+  uint64_t pktSendStartTime;
+  UDPPacketInternal *p;
+  ink_hrtime pktSendTime;
+
+  p = (UDPPacketInternal *) ink_atomiclist_popall(&atomicQueue);
+  if (p) {
+    UDPPacketInternal *pnext = NULL;
+    Queue<UDPPacketInternal> stk;
+
+    while (p) {
+      pnext = p->alink.next;
+      p->alink.next = NULL;
+      stk.push(p);
+      p = pnext;
+    }
+
+    // walk backwards down list since this is actually an atomic stack.
+    while (stk.head) {
+      p = stk.pop();
+      ink_assert(p->link.prev == NULL);
+      ink_assert(p->link.next == NULL);
+      // insert into our queue.
+      Debug("udp-send", "Adding %p", p);
+      if (p->conn->lastPktStartTime == 0) {
+        pktSendStartTime = MAX(now, p->delivery_time);
+      } else {
+        pktSendTime = p->delivery_time;
+        pktSendStartTime = MAX(MAX(now, pktSendTime), p->delivery_time);
+      }
+      p->conn->lastPktStartTime = pktSendStartTime;
+      p->delivery_time = pktSendStartTime;
+
+      pipeInfo.addPacket(p, now);
+    }
+  }
+
+  pipeInfo.advanceNow(now);
+  SendPackets();
+
+  timeSpent = ink_hrtime_to_msec(now - last_report);
+  if (timeSpent > 10000) {
+    last_report = now;
+    added = 0;
+    packets = 0;
+  }
+  last_service = now;
+}
+
+void
+UDPQueue::SendPackets()
+{
+  UDPPacketInternal *p;
+  static ink_hrtime lastCleanupTime = ink_get_hrtime_internal();
+  ink_hrtime now = ink_get_hrtime_internal();
+  ink_hrtime send_threshold_time = now + SLOT_TIME;
+  int32_t bytesThisSlot = INT_MAX, bytesUsed = 0;
+  int32_t bytesThisPipe, sentOne;
+  int64_t pktLen;
+
+  bytesThisSlot = INT_MAX;
+
+sendPackets:
+  sentOne = false;
+  bytesThisPipe = (int32_t)bytesThisSlot;
+
+  while ((bytesThisPipe > 0) && (pipeInfo.firstPacket(send_threshold_time))) {
+    p = pipeInfo.getFirstPacket();
+    pktLen = p->getPktLength();
+
+    if (p->conn->shouldDestroy())
+      goto next_pkt;
+    if (p->conn->GetSendGenerationNumber() != p->reqGenerationNum)
+      goto next_pkt;
+
+    SendUDPPacket(p, pktLen);
+    bytesUsed += pktLen;
+    bytesThisPipe -= pktLen;
+  next_pkt:
+    sentOne = true;
+    p->free();
+
+    if (bytesThisPipe < 0)
+      break;
+  }
+
+  bytesThisSlot -= bytesUsed;
+
+  if ((bytesThisSlot > 0) && sentOne) {
+    // redistribute the slack...
+    now = ink_get_hrtime_internal();
+    if (pipeInfo.firstPacket(now) == NULL) {
+      pipeInfo.advanceNow(now);
+    }
+    goto sendPackets;
+  }
+
+  if ((g_udp_periodicFreeCancelledPkts) && (now - lastCleanupTime > ink_hrtime_from_sec(g_udp_periodicFreeCancelledPkts))) {
+    pipeInfo.FreeCancelledPackets(g_udp_periodicCleanupSlots);
+    lastCleanupTime = now;
+  }
+}
+
+void
+UDPQueue::SendUDPPacket(UDPPacketInternal *p, int32_t /* pktLen ATS_UNUSED */)
+{
+  IOBufferBlock *b;
+  struct msghdr msg;
+  struct iovec iov[32];
+  int real_len = 0;
+  int n, count, iov_len = 0;
+
+  p->conn->lastSentPktStartTime = p->delivery_time;
+  Debug("udp-send", "Sending %p", p);
+
+#if !defined(solaris)
+  msg.msg_control = 0;
+  msg.msg_controllen = 0;
+  msg.msg_flags = 0;
+#endif
+  msg.msg_name = (caddr_t) & p->to;
+  msg.msg_namelen = sizeof(p->to);
+  iov_len = 0;
+
+  for (b = p->chain; b != NULL; b = b->next) {
+    iov[iov_len].iov_base = (caddr_t) b->start();
+    iov[iov_len].iov_len = b->size();
+    real_len += iov[iov_len].iov_len;
+    iov_len++;
+  }
+  msg.msg_iov = iov;
+  msg.msg_iovlen = iov_len;
+
+  count = 0;
+  while (1) {
+    // stupid Linux problem: sendmsg can return EAGAIN
+    n =::sendmsg(p->conn->getFd(), &msg, 0);
+    if ((n >= 0) || ((n < 0) && (errno != EAGAIN)))
+      // send succeeded or some random error happened.
+      break;
+    if (errno == EAGAIN) {
+      ++count;
+      if ((g_udp_numSendRetries > 0) && (count >= g_udp_numSendRetries)) {
+        // tried too many times; give up
+        Debug("udpnet", "Send failed: too many retries");
+        break;
+      }
+    }
+  }
+}
+
+
+void
+UDPQueue::send(UDPPacket * p)
+{
+  // XXX: maybe fastpath for immediate send?
+  ink_atomiclist_push(&atomicQueue, p);
+}
+
+#undef LINK
+
+UDPNetHandler::UDPNetHandler()
+{
+  mutex = new_ProxyMutex();
+  ink_atomiclist_init(&udpOutQueue.atomicQueue, "Outgoing UDP Packet queue", offsetof(UDPPacketInternal, alink.next));
+  ink_atomiclist_init(&udpNewConnections, "UDP Connection queue", offsetof(UnixUDPConnection, newconn_alink.next));
+  nextCheck = ink_get_hrtime_internal() + HRTIME_MSECONDS(1000);
+  lastCheck = 0;
+  SET_HANDLER((UDPNetContHandler) & UDPNetHandler::startNetEvent);
+}
+
+int
+UDPNetHandler::startNetEvent(int event, Event * e)
+{
+  (void) event;
+  SET_HANDLER((UDPNetContHandler) & UDPNetHandler::mainNetEvent);
+  trigger_event = e;
+  e->schedule_every(-HRTIME_MSECONDS(9));
+  return EVENT_CONT;
+}
+
+int
+UDPNetHandler::mainNetEvent(int event, Event * e)
+{
+  ink_assert(trigger_event == e && event == EVENT_POLL);
+  (void) event;
+  (void) e;
+
+  PollCont *pc = get_UDPPollCont(e->ethread);
+
+  // handle UDP outgoing engine
+  udpOutQueue.service(this);
+
+  // handle UDP read operations
+  UnixUDPConnection *uc, *next;
+  int i;
+  int nread = 0;
+
+  EventIO *temp_eptr = NULL;
+  for (i = 0; i < pc->pollDescriptor->result; i++) {
+    temp_eptr = (EventIO*) get_ev_data(pc->pollDescriptor,i);
+    if ((get_ev_events(pc->pollDescriptor,i) & EVENTIO_READ)
+        && temp_eptr->type == EVENTIO_UDP_CONNECTION) {
+      uc = temp_eptr->data.uc;
+      ink_assert(uc && uc->mutex && uc->continuation);
+      ink_assert(uc->refcount >= 1);
+      if (uc->shouldDestroy()) {
+        // udp_polling->remove(uc,uc->polling_link);
+        uc->Release();
+      } else {
+        udpNetInternal.udp_read_from_net(this, uc);
+        nread++;
+      }
+    }                           //if EPOLLIN
+  }                             //end for
+
+  // remove dead UDP connections
+  ink_hrtime now = ink_get_hrtime_internal();
+  if (now >= nextCheck) {
+    for (uc = udp_polling.head; uc; uc = next) {
+      ink_assert(uc->mutex && uc->continuation);
+      ink_assert(uc->refcount >= 1);
+      next = uc->polling_link.next;
+      if (uc->shouldDestroy()) {
+        //changed by YTS Team, yamsat
+        //udp_polling->remove(uc,uc->polling_link);
+        uc->Release();
+      }
+    }
+    nextCheck = ink_get_hrtime_internal() + HRTIME_MSECONDS(1000);
+  }
+  // service UDPConnections with data ready for callback.
+  Que(UnixUDPConnection, callback_link) q = udp_callbacks;
+  udp_callbacks.clear();
+  while ((uc = q.dequeue())) {
+    ink_assert(uc->mutex && uc->continuation);
+    if (udpNetInternal.udp_callback(this, uc, trigger_event->ethread)) {        // not successful
+      // schedule on a thread of its own.
+      ink_assert(uc->callback_link.next == NULL);
+      ink_assert(uc->callback_link.prev == NULL);
+      udp_callbacks.enqueue(uc);
+    } else {
+      ink_assert(uc->callback_link.next == NULL);
+      ink_assert(uc->callback_link.prev == NULL);
+      uc->onCallbackQueue = 0;
+      uc->Release();
+    }
+  }
+
+  return EVENT_CONT;
+}
diff --git a/iocore/net/test_I_Net.cc b/iocore/net/test_I_Net.cc
new file mode 100644
index 00000000..5f54f1d7
--- /dev/null
+++ b/iocore/net/test_I_Net.cc
@@ -0,0 +1,179 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+#include <netdb.h>
+
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+//#define USE_SOCKS
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+/*
+ * Choose a net test application
+ */
+//#include "NetTest-http-server.c"
+#include "NetTest-simple-proxy.c"
+
+
+int
+main()
+{
+  // do not buffer stdout
+  setbuf(stdout, NULL);
+  int nproc = ink_number_of_processors();
+
+  RecModeT mode_type = RECM_STAND_ALONE;
+
+
+  init_diags("net_test", NULL);
+  RecProcessInit(mode_type);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  ink_net_init(NET_SYSTEM_MODULE_VERSION);
+
+
+  /*
+   * ignore broken pipe
+   */
+  signal(SIGPIPE, SIG_IGN);
+
+  /*
+   * start processors
+   */
+
+  eventProcessor.start(nproc);
+  RecProcessStart();
+
+  /*
+   *  Reset necessary config variables
+   */
+
+#ifdef USE_SOCKS
+  net_config_socks_server_host = "209.131.52.54";
+  net_config_socks_server_port = 1080;
+  net_config_socks_needed = 1;
+#endif
+
+  netProcessor.start();
+  sslNetProcessor.start(1);
+
+  /*
+   * Call the tests main function
+   */
+  test_main();
+  this_thread()->execute();
+  return 0;
+}
diff --git a/iocore/net/test_I_UDPNet.cc b/iocore/net/test_I_UDPNet.cc
new file mode 100644
index 00000000..c3fef811
--- /dev/null
+++ b/iocore/net/test_I_UDPNet.cc
@@ -0,0 +1,214 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "I_Net.h"
+#include "List.h"
+
+//Diags stuff from test_I_Net.cc:
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i, e;
+  char *p, *dt, *at;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "a+");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+
+/*This implements a standard Unix echo server: just send every udp packet you
+  get back to where it came from*/
+
+class EchoServer:public Continuation
+{
+  int sock_fd;
+  UDPConnection *conn;
+
+  int handlePacket(int event, void *data);
+
+public:
+    EchoServer()
+  : Continuation(new_ProxyMutex())
+  {
+  };
+
+  bool Start(int port);
+};
+
+bool
+EchoServer::Start(int port)
+{
+  Action *action;
+  sockaddr_in addr;
+
+  if (!udpNet.CreateUDPSocket(&sock_fd, &addr, &action, port))
+    return false;
+
+  conn = new_UDPConnection(sock_fd);
+  conn->bindToThread(this);
+
+  SET_HANDLER(&EchoServer::handlePacket);
+
+  conn->recv(this);
+}
+
+int
+EchoServer::handlePacket(int event, void *data)
+{
+  switch (event) {
+
+  case NET_EVENT_DATAGRAM_READ_READY:{
+      Queue<UDPPacket> *q = (Queue<UDPPacket> *)data;
+      UDPPacket *p;
+
+      //send what ever we get back to the client
+      while (p = q->pop()) {
+        p->m_to = p->m_from;
+        conn->send(this, p);
+      }
+      break;
+    }
+
+  case NET_EVENT_DATAGRAM_READ_ERROR:
+    printf("got Read Error exiting\n");
+    _exit(1);
+
+  case NET_EVENT_DATAGRAM_WRITE_ERROR:
+    printf("got write error: %d\n", (int) data);
+    break;
+
+  default:
+    printf("got unknown event\n");
+  }
+
+  return EVENT_DONE;
+}
+
+int
+main(int argc, char *argv[])
+{
+  int port = (argc > 1) ? atoi(argv[1]) : 39680;
+
+  init_diags((argc > 2) ? argv[2] : "udp.*", NULL);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(2);
+  udpNet.start(1);
+
+  signal(SIGPIPE, SIG_IGN);
+
+  EchoServer server;
+  server.Start(port);
+
+  this_thread()->execute();
+}
diff --git a/iocore/net/test_P_Net.cc b/iocore/net/test_P_Net.cc
new file mode 100644
index 00000000..ba402d75
--- /dev/null
+++ b/iocore/net/test_P_Net.cc
@@ -0,0 +1,112 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+
+Diags *diags;
+struct NetTesterSM:public Continuation
+{
+  VIO *read_vio;
+  IOBufferReader *reader;
+  NetVConnection *vc;
+  MIOBuffer *buf;
+
+    NetTesterSM(ProxyMutex * _mutex, NetVConnection * _vc):Continuation(_mutex)
+  {
+    MUTEX_TRY_LOCK(lock, mutex, _vc->thread);
+    ink_release_assert(lock);
+    vc = _vc;
+    SET_HANDLER(&NetTesterSM::handle_read);
+    buf = new_MIOBuffer(8);
+    reader = buf->alloc_reader();
+    read_vio = vc->do_io_read(this, INT64_MAX, buf);
+  }
+
+
+  int handle_read(int event, void *data)
+  {
+    int r;
+    char *str;
+    switch (event) {
+    case VC_EVENT_READ_READY:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      printf("%s", str);
+      fflush(stdout);
+      break;
+    case VC_EVENT_READ_COMPLETE:
+      /* FALLSTHROUGH */
+    case VC_EVENT_EOS:
+      r = reader->read_avail();
+      str = new char[r + 10];
+      reader->read(str, r);
+      printf("%s", str);
+      fflush(stdout);
+    case VC_EVENT_ERROR:
+      vc->do_io_close();
+      break;
+    default:
+      ink_release_assert(!"unknown event");
+
+    }
+    return EVENT_CONT;
+  }
+
+
+};
+
+
+struct NetTesterAccept:public Continuation
+{
+
+  NetTesterAccept(ProxyMutex * _mutex):Continuation(_mutex)
+  {
+    SET_HANDLER(&NetTesterAccept::handle_accept);
+  }
+
+  int handle_accept(int event, void *data)
+  {
+    printf("Accepted a connection\n");
+    fflush(stdout);
+    NetVConnection *vc = (NetVConnection *) data;
+    new NetTesterSM(new_ProxyMutex(), vc);
+    return EVENT_CONT;
+  }
+
+
+};
+
+
+
+
+int
+main()
+{
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  MIOBuffer *mbuf = new_MIOBuffer(5);
+  eventProcessor.start(1);
+  netProcessor.start();
+  netProcessor.accept(new NetTesterAccept(new_ProxyMutex()), 8080, true);
+  this_thread()->execute();
+}
diff --git a/iocore/net/test_P_UDPNet.cc b/iocore/net/test_P_UDPNet.cc
new file mode 100644
index 00000000..fc8fde8d
--- /dev/null
+++ b/iocore/net/test_P_UDPNet.cc
@@ -0,0 +1,214 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "P_Net.h"
+#include "libts.h"
+
+//Diags stuff from test_I_Net.cc:
+Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i, e;
+  char *p, *dt, *at;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  ink_strlcpy(diags_logpath, DIAGS_LOG_FILE, sizeof(diags_logpath));
+
+  diags_log_fp = fopen(diags_logpath, "a+");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
+
+
+/*This implements a standard Unix echo server: just send every udp packet you
+  get back to where it came from*/
+
+class EchoServer:public Continuation
+{
+  int sock_fd;
+  UDPConnection *conn;
+
+  int handlePacket(int event, void *data);
+
+public:
+    EchoServer()
+  : Continuation(new_ProxyMutex())
+  {
+  };
+
+  bool Start(int port);
+};
+
+bool
+EchoServer::Start(int port)
+{
+  Action *action;
+  sockaddr_in addr;
+
+  if (!udpNet.CreateUDPSocket(&sock_fd, &addr, &action, port))
+    return false;
+
+  conn = new_UDPConnection(sock_fd);
+  conn->bindToThread(this);
+
+  SET_HANDLER(&EchoServer::handlePacket);
+
+  conn->recv(this);
+}
+
+int
+EchoServer::handlePacket(int event, void *data)
+{
+  switch (event) {
+
+  case NET_EVENT_DATAGRAM_READ_READY:{
+      Queue<UDPPacket> *q = (Queue<UDPPacket> *)data;
+      UDPPacket *p;
+
+      //send what ever we get back to the client
+      while (p = q->pop()) {
+        p->m_to = p->m_from;
+        conn->send(this, p);
+      }
+      break;
+    }
+
+  case NET_EVENT_DATAGRAM_READ_ERROR:
+    printf("got Read Error exiting\n");
+    _exit(1);
+
+  case NET_EVENT_DATAGRAM_WRITE_ERROR:
+    printf("got write error: %d\n", (int) data);
+    break;
+
+  default:
+    printf("got unknown event\n");
+  }
+
+  return EVENT_DONE;
+}
+
+int
+main(int argc, char *argv[])
+{
+  int port = (argc > 1) ? atoi(argv[1]) : 39680;
+
+  init_diags((argc > 2) ? argv[2] : "udp.*", NULL);
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(2);
+  udpNet.start(1);
+
+  signal(SIGPIPE, SIG_IGN);
+
+  EchoServer server;
+  server.Start(port);
+
+  this_thread()->execute();
+}
diff --git a/iocore/net/test_certlookup.cc b/iocore/net/test_certlookup.cc
new file mode 100644
index 00000000..f87d398f
--- /dev/null
+++ b/iocore/net/test_certlookup.cc
@@ -0,0 +1,225 @@
+/** @file
+
+  SSL Context management
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_SSLCertLookup.h"
+#include "ts/TestBox.h"
+#include <fstream>
+
+static IpEndpoint
+make_endpoint(const char * address)
+{
+  IpEndpoint ip;
+
+  assert(ats_ip_pton(address, &ip) == 0);
+  return ip;
+}
+
+REGRESSION_TEST(SSLCertificateLookup)(RegressionTest* t, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  TestBox       box(t, pstatus);
+  SSLCertLookup lookup;
+
+  SSL_CTX * wild = SSL_CTX_new(SSLv23_server_method());
+  SSL_CTX * notwild = SSL_CTX_new(SSLv23_server_method());
+  SSL_CTX * b_notwild = SSL_CTX_new(SSLv23_server_method());
+  SSL_CTX * foo = SSL_CTX_new(SSLv23_server_method());
+  SSL_CTX * all_com = SSL_CTX_new(SSLv23_server_method());
+
+  box = REGRESSION_TEST_PASSED;
+
+  assert(wild != NULL);
+  assert(notwild != NULL);
+  assert(b_notwild != NULL);
+  assert(foo != NULL);
+  assert(all_com != NULL);
+
+  box.check(lookup.insert(foo, "www.foo.com"), "insert host context");
+  box.check(lookup.insert(wild, "*.wild.com"), "insert wildcard context");
+  box.check(lookup.insert(notwild, "*.notwild.com"), "insert wildcard context");
+  box.check(lookup.insert(b_notwild, "*.b.notwild.com"), "insert wildcard context");
+  box.check(lookup.insert(all_com, "*.com"), "insert wildcard context");
+
+  // To test name collisions, we need to shuffle the SSL_CTX's so that we try to
+  // index the same name with a different SSL_CTX.
+  box.check(lookup.insert(wild, "*.com") == false, "insert host duplicate");
+  box.check(lookup.insert(foo, "*.wild.com") == false, "insert wildcard duplicate");
+  box.check(lookup.insert(b_notwild, "*.notwild.com") == false, "insert wildcard conext duplicate");
+  box.check(lookup.insert(notwild, "*.b.notwild.com") == false, "insert wildcard conext duplicate");
+  box.check(lookup.insert(all_com, "www.foo.com") == false, "insert wildcard conext duplicate");
+
+  // Basic wildcard cases.
+  box.check(lookup.findInfoInHash("a.wild.com") == wild, "wildcard lookup for a.wild.com");
+  box.check(lookup.findInfoInHash("b.wild.com") == wild, "wildcard lookup for b.wild.com");
+  box.check(lookup.insert(all_com, "www.foo.com") == false, "insert wildcard conext duplicate");
+
+  // Verify that wildcard does longest match.
+  box.check(lookup.findInfoInHash("a.notwild.com") == notwild, "wildcard lookup for a.notwild.com");
+  box.check(lookup.findInfoInHash("notwild.com") == all_com, "wildcard lookup for notwild.com");
+  box.check(lookup.findInfoInHash("c.b.notwild.com") == b_notwild, "wildcard lookup for c.b.notwild.com");
+
+  // Basic hostname cases.
+  box.check(lookup.findInfoInHash("www.foo.com") == foo, "host lookup for www.foo.com");
+  box.check(lookup.findInfoInHash("www.bar.com") == all_com, "host lookup for www.bar.com");
+  box.check(lookup.findInfoInHash("www.bar.net") == NULL, "host lookup for www.bar.net");
+}
+
+REGRESSION_TEST(SSLAddressLookup)(RegressionTest* t, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  TestBox       box(t, pstatus);
+  SSLCertLookup lookup;
+
+  struct {
+    SSL_CTX * ip6;
+    SSL_CTX * ip6p;
+    SSL_CTX * ip4;
+    SSL_CTX * ip4p;
+  } context;
+
+  struct {
+     IpEndpoint ip6;
+     IpEndpoint ip6p;
+     IpEndpoint ip4;
+     IpEndpoint ip4p;
+  } endpoint;
+
+  context.ip6 = SSL_CTX_new(SSLv23_server_method());
+  context.ip6p = SSL_CTX_new(SSLv23_server_method());
+  context.ip4 = SSL_CTX_new(SSLv23_server_method());
+  context.ip4p = SSL_CTX_new(SSLv23_server_method());
+
+  endpoint.ip6 = make_endpoint("fe80::7ed1:c3ff:fe90:2582");
+  endpoint.ip6p = make_endpoint("[fe80::7ed1:c3ff:fe90:2582]:80");
+  endpoint.ip4 = make_endpoint("10.0.0.5");
+  endpoint.ip4p = make_endpoint("10.0.0.5:80");
+
+  box = REGRESSION_TEST_PASSED;
+
+  // For each combination of address with port and address without port, make sure that we find the
+  // the most specific match (ie. find the context with the port if it is available) ...
+
+  box.check(lookup.insert(context.ip6, endpoint.ip6), "insert IPv6 address");
+  box.check(lookup.findInfoInHash(endpoint.ip6) == context.ip6, "IPv6 exact match lookup");
+  box.check(lookup.findInfoInHash(endpoint.ip6p) == context.ip6, "IPv6 exact match lookup w/ port");
+
+  box.check(lookup.insert(context.ip6p, endpoint.ip6p), "insert IPv6 address w/ port");
+  box.check(lookup.findInfoInHash(endpoint.ip6) == context.ip6, "IPv6 longest match lookup");
+  box.check(lookup.findInfoInHash(endpoint.ip6p) == context.ip6p, "IPv6 longest match lookup w/ port");
+
+  box.check(lookup.insert(context.ip4, endpoint.ip4), "insert IPv4 address");
+  box.check(lookup.findInfoInHash(endpoint.ip4) == context.ip4, "IPv4 exact match lookup");
+  box.check(lookup.findInfoInHash(endpoint.ip4p) == context.ip4, "IPv4 exact match lookup w/ port");
+
+  box.check(lookup.insert(context.ip4p, endpoint.ip4p), "insert IPv4 address w/ port");
+  box.check(lookup.findInfoInHash(endpoint.ip4) == context.ip4, "IPv4 longest match lookup");
+  box.check(lookup.findInfoInHash(endpoint.ip4p) == context.ip4p, "IPv4 longest match lookup w/ port");
+}
+
+static unsigned
+load_hostnames_csv(const char * fname, SSLCertLookup& lookup)
+{
+  std::fstream infile(fname, std::ios_base::in);
+  unsigned count = 0;
+
+  // SSLCertLookup correctly handles indexing the same certificate
+  // with multiple names, an it's way faster to load a lot of names
+  // if we don't need a new context every time.
+
+  SSL_CTX * ctx = SSL_CTX_new(SSLv23_server_method());
+
+  // The input should have 2 comma-separated fields; this is the format that you get when
+  // you download the top 1M sites from alexa.
+  //
+  // For example:
+  //    1,google.com
+  //    2,facebook.com
+  //    3,youtube.com
+  //    4,yahoo.com
+  //    5,baidu.com
+
+  while (!infile.eof()) {
+    std::string line;
+    std::string::size_type pos;
+
+    infile >> line;
+    if (line.empty()) {
+      break;
+    }
+
+    pos = line.find_first_of(',');
+    if (pos != std::string::npos) {
+      std::string host(line.substr(pos + 1));
+      lookup.insert(ctx, host.c_str());
+    } else {
+      // No comma? Assume the whole line is the hostname
+      lookup.insert(ctx, line.c_str());
+    }
+
+    ++count;
+  }
+
+  return count;
+}
+
+// This stub version of SSLReleaseContext saves us from having to drag in a lot
+// of binary dependencies. We don't have session tickets in this test environment
+// so it's safe to do this; just a bit ugly.
+void
+SSLReleaseContext(SSL_CTX * ctx)
+{
+   SSL_CTX_free(ctx);
+}
+
+int main(int argc, const char ** argv)
+{
+  diags = new Diags(NULL, NULL, stdout);
+  res_track_memory = 1;
+
+  SSL_library_init();
+  ink_freelists_snap_baseline();
+
+  if (argc > 1) {
+    SSLCertLookup lookup;
+    unsigned count = 0;
+
+    for (int i = 1; i < argc; ++i) {
+      count += load_hostnames_csv(argv[i], lookup);
+    }
+
+    printf("loaded %u host names\n", count);
+
+  } else {
+    // Standard regression tests.
+    RegressionTest::run();
+  }
+
+  ink_freelists_dump(stdout);
+
+  // On Darwin, fail the tests if we have any memory leaks.
+#if defined(darwin)
+  if (system("xcrun leaks test_certlookup") != 0) {
+    RegressionTest::final_status = REGRESSION_TEST_FAILED;
+  }
+#endif
+
+  return RegressionTest::final_status == REGRESSION_TEST_PASSED ? 0 : 1;
+}
diff --git a/iocore/utils/I_Machine.h b/iocore/utils/I_Machine.h
new file mode 100644
index 00000000..9f811509
--- /dev/null
+++ b/iocore/utils/I_Machine.h
@@ -0,0 +1,100 @@
+/** @file
+
+  Machine
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Part of the utils library which contains classes that use multiple
+  components of the IO-Core to implement some useful functionality. The
+  classes also serve as good examples of how to use the IO-Core.
+
+ */
+
+#ifndef _I_Machine_h
+#define _I_Machine_h
+
+
+/**
+  The Machine is a simple place holder for the hostname and the ip
+  address of an internet host.
+
+  If a hostname or an IP address is not provided in the constructor,
+  the hostname defaults to the name of the current processor and the
+  IP address is the address of the current host.  If the host has
+  multiple IP addresses, the numerically lowest IP address is used.
+  The IP address is stored in the network byte order.
+
+  @internal This does not handle multi-homed systems. That should be
+  fixed.
+
+ */
+struct Machine {
+  typedef Machine self; ///< Self reference type.
+
+  char *hostname;               // name of the internet host
+  int hostname_len;             // size of the string pointed to by hostname
+
+  IpEndpoint ip;      ///< Prefered IP address of the host (network order)
+  IpEndpoint ip4;     ///< IPv4 address if present.
+  IpEndpoint ip6;     ///< IPv6 address if present.
+
+  ip_text_buffer ip_string;              // IP address of the host as a string.
+  int ip_string_len;
+
+  char ip_hex_string[TS_IP6_SIZE*2 + 1]; ///< IP address as hex string
+  int ip_hex_string_len;
+
+  ~Machine();
+
+  /** Initialize the singleton.
+      If @a hostname or @a ip are @c NULL then system defaults are used.
+
+      @note This must be called before called @c instance so that the
+      singleton is not @em inadvertently default initialized.
+  */
+  static self* init(
+    char const* name = 0, ///< Host name of the machine.
+    sockaddr const* addr = 0 ///< Primary IP adddress of the machine.
+  );
+  /// @return The global instance of this class.
+  static self* instance();
+
+protected:
+  Machine(char const* hostname, sockaddr const* addr);
+
+  static self* _instance; ///< Singleton for the class.
+};
+
+/**
+  Creates a Machine Object with the hostname and IP address.  If no
+  hostname or IP address is given, the hostname defaults to the name of
+  the current processor.
+
+ */
+void create_this_machine(char *hostname = 0, unsigned int ip = 0);
+
+/**
+  Returns the Machine object created by create_this_machine().
+
+ */
+Machine *this_machine();
+
+#endif
diff --git a/iocore/utils/I_OneWayMultiTunnel.h b/iocore/utils/I_OneWayMultiTunnel.h
new file mode 100644
index 00000000..96afe3fc
--- /dev/null
+++ b/iocore/utils/I_OneWayMultiTunnel.h
@@ -0,0 +1,154 @@
+/** @file
+
+  One way multi tunnel
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Part of the utils library which contains classes that use multiple
+  components of the IO-Core to implement some useful functionality. The
+  classes also serve as good examples of how to use the IO-Core.
+
+ */
+
+#if !defined (_I_OneWayMultiTunnel_h_)
+#define _I_OneWayMultiTunnel_h_
+
+#include "I_OneWayTunnel.h"
+
+/** Maximum number which can be tunnelled too */
+#define ONE_WAY_MULTI_TUNNEL_LIMIT          4
+
+/**
+  A generic state machine that connects a source virtual conection to
+  multiple target virtual connections. A OneWayMultiTunnel is similar to
+  the OneWayTunnel module. However, instead of connection one source
+  to one target, it connects multiple virtual connections - a source
+  vc and multiple target vcs, and copies the data from the source
+  to the target vcs. The maximum number of Target VCs is limited by
+  ONE_WAY_MULTI_TUNNEL_LIMIT.
+
+  If manipulate_fn is not NULL, then the tunnel acts as a filter,
+  processing all data arriving from the source vc by the manipulate_fn
+  function, before sending to the target vcs. By default, the
+  manipulate_fn is set to NULL, yielding the identity function.
+
+  @see OneWayTunnel
+
+*/
+struct OneWayMultiTunnel: public OneWayTunnel
+{
+  //
+  // Public Interface
+  //
+
+  // Use these to construct/destruct OneWayMultiTunnel objects
+
+  /**
+    Allocates a OneWayMultiTunnel object.
+
+    @return new OneWayTunnel object.
+
+  */
+  static OneWayMultiTunnel *OneWayMultiTunnel_alloc();
+
+  /**
+    Deallocates a OneWayTunnel object.
+
+  */
+  static void OneWayMultiTunnel_free(OneWayMultiTunnel *);
+
+    OneWayMultiTunnel();
+
+  // Use One of the following init functions to start the tunnel.
+
+  /**
+    This init function sets up the read (calls do_io_read) and the write
+    (calls do_io_write).
+
+    @param vcSource source VConnection. A do_io_read should not have
+      been called on the vcSource. The tunnel calls do_io_read on this VC.
+    @param vcTargets array of Target VConnections. A do_io_write should
+      not have been called on any of the vcTargets. The tunnel calls
+      do_io_write on these VCs.
+    @param n_vcTargets size of vcTargets.
+    @param aCont continuation to call back when the tunnel finishes. If
+      not specified, the tunnel deallocates itself without calling
+      back anybody.
+    @param size_estimate size of the MIOBuffer to create for reading/
+      writing to/from the VC's.
+    @param nbytes number of bytes to transfer.
+    @param asingle_buffer whether the same buffer should be used to read
+      from vcSource and write to vcTarget. This should be set to true
+      in most cases, unless the data needs be transformed.
+    @param aclose_source if true, the tunnel closes vcSource at the
+      end. If aCont is not specified, this should be set to true.
+    @param aclose_target if true, the tunnel closes vcTarget at the end.
+      If aCont is not specified, this should be set to true.
+    @param manipulate_fn if specified, the tunnel calls this function
+      with the input and the output buffer, whenever it gets new data
+      in the input buffer. This function can transform the data in the
+      input buffer.
+    @param water_mark for the MIOBuffer used for reading.
+
+  */
+  void init(VConnection * vcSource, VConnection ** vcTargets, int n_vcTargets, Continuation * aCont = NULL, int size_estimate = 0,      // 0 == best guess
+            int64_t nbytes = TUNNEL_TILL_DONE,
+            bool asingle_buffer = true,
+            bool aclose_source = true,
+            bool aclose_target = true, Transform_fn manipulate_fn = NULL, int water_mark = 0);
+
+  /**
+    Use this init function if both the read and the write sides have
+    already been setup. The tunnel assumes that the read VC and the
+    write VCs are using the same buffer and frees that buffer when the
+    transfer is done (either successful or unsuccessful).
+
+    @param aCont continuation to call back when the tunnel finishes. If
+      not specified, the tunnel deallocates itself without calling back
+      anybody.
+    @param SourceVio read VIO of the Source VC.
+    @param TargetVios array of write VIOs of the Target VCs.
+    @param n_vioTargets size of TargetVios array.
+    @param aclose_source if true, the tunnel closes vcSource at the
+      end. If aCont is not specified, this should be set to true.
+    @param aclose_target ff true, the tunnel closes vcTarget at the
+      end. If aCont is not specified, this should be set to true.
+
+  */
+  void init(Continuation * aCont, VIO * SourceVio, VIO ** TargetVios, int n_vioTargets, bool aclose_source = true,
+            bool aclose_target = true);
+
+  //
+  // Private
+  //
+  int startEvent(int event, void *data);
+
+  virtual void reenable_all();
+  virtual void close_target_vio(int result, VIO * vio = NULL);
+
+  int n_vioTargets;
+  VIO *vioTargets[ONE_WAY_MULTI_TUNNEL_LIMIT];
+  MIOBufferAccessor topOutBuffer;
+  bool source_read_previously_completed;
+};
+
+extern ClassAllocator<OneWayMultiTunnel> OneWayMultiTunnelAllocator;
+#endif
diff --git a/iocore/utils/I_OneWayTunnel.h b/iocore/utils/I_OneWayTunnel.h
new file mode 100644
index 00000000..8ebaf474
--- /dev/null
+++ b/iocore/utils/I_OneWayTunnel.h
@@ -0,0 +1,223 @@
+/** @file
+
+  One way tunnel
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Part of the utils library which contains classes that use multiple
+  components of the IO-Core to implement some useful functionality. The
+  classes also serve as good examples of how to use the IO-Core.
+
+ */
+
+#if !defined (_I_OneWayTunnel_h_)
+#define _I_OneWayTunnel_h_
+
+#include "I_EventSystem.h"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      OneWayTunnel
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#define TUNNEL_TILL_DONE   INT64_MAX
+
+#define ONE_WAY_TUNNEL_CLOSE_ALL NULL
+
+typedef void (*Transform_fn) (MIOBufferAccessor & in_buf, MIOBufferAccessor & out_buf);
+
+/**
+  A generic state machine that connects two virtual conections. A
+  OneWayTunnel is a module that connects two virtual connections, a source
+  vc and a target vc, and copies the data between source and target. Once
+  the tunnel is started using the init() call, it handles all the events
+  from the source and target and optionally calls a continuation back when
+  its done. On success it calls back the continuation with VC_EVENT_EOS,
+  and with VC_EVENT_ERROR on failure.
+
+  If manipulate_fn is not NULL, then the tunnel acts as a filter,
+  processing all data arriving from the source vc by the manipulate_fn
+  function, before sending to the target vc. By default, the manipulate_fn
+  is set to NULL, yielding the identity function. manipulate_fn takes
+  a IOBuffer containing the data to be written into the target virtual
+  connection which it may manipulate in any manner it sees fit.
+
+*/
+struct OneWayTunnel: public Continuation
+{
+  //
+  //  Public Interface
+  //
+
+  //  Copy nbytes from vcSource to vcTarget.  When done, call
+  //  aCont back with either VC_EVENT_EOS (on success) or
+  //  VC_EVENT_ERROR (on error)
+  //
+
+  // Use these to construct/destruct OneWayTunnel objects
+
+  /**
+    Allocates a OneWayTunnel object.
+
+    @return new OneWayTunnel object.
+
+  */
+  static OneWayTunnel *OneWayTunnel_alloc();
+
+  /** Deallocates a OneWayTunnel object. */
+  static void OneWayTunnel_free(OneWayTunnel *);
+
+  static void SetupTwoWayTunnel(OneWayTunnel * east, OneWayTunnel * west);
+    OneWayTunnel();
+    virtual ~ OneWayTunnel();
+
+  // Use One of the following init functions to start the tunnel.
+  /**
+    This init function sets up the read (calls do_io_read) and the write
+    (calls do_io_write).
+
+    @param vcSource source VConnection. A do_io_read should not have
+      been called on the vcSource. The tunnel calls do_io_read on this VC.
+    @param vcTarget target VConnection. A do_io_write should not have
+      been called on the vcTarget. The tunnel calls do_io_write on this VC.
+    @param aCont continuation to call back when the tunnel finishes. If
+      not specified, the tunnel deallocates itself without calling back
+      anybody. Otherwise, its the callee's responsibility to deallocate
+      the tunnel with OneWayTunnel_free.
+    @param size_estimate size of the MIOBuffer to create for
+      reading/writing to/from the VC's.
+    @param aMutex lock that this tunnel will run under. If aCont is
+      specified, the Continuation's lock is used instead of aMutex.
+    @param nbytes number of bytes to transfer.
+    @param asingle_buffer whether the same buffer should be used to read
+      from vcSource and write to vcTarget. This should be set to true in
+      most cases, unless the data needs be transformed.
+    @param aclose_source if true, the tunnel closes vcSource at the
+      end. If aCont is not specified, this should be set to true.
+    @param aclose_target if true, the tunnel closes vcTarget at the
+      end. If aCont is not specified, this should be set to true.
+    @param manipulate_fn if specified, the tunnel calls this function
+      with the input and the output buffer, whenever it gets new data
+      in the input buffer. This function can transform the data in the
+      input buffer
+    @param water_mark watermark for the MIOBuffer used for reading.
+
+  */
+  void init(VConnection * vcSource, VConnection * vcTarget, Continuation * aCont = NULL, int size_estimate = 0, // 0 = best guess
+            ProxyMutex * aMutex = NULL,
+            int64_t nbytes = TUNNEL_TILL_DONE,
+            bool asingle_buffer = true,
+            bool aclose_source = true,
+            bool aclose_target = true, Transform_fn manipulate_fn = NULL, int water_mark = 0);
+
+  /**
+    This init function sets up only the write side. It assumes that the
+    read VConnection has already been setup.
+
+    @param vcSource source VConnection. Prior to calling this
+      init function, a do_io_read should have been called on this
+      VConnection. The tunnel uses the same MIOBuffer and frees
+      that buffer when the transfer is done (either successful or
+      unsuccessful).
+    @param vcTarget target VConnection. A do_io_write should not have
+      been called on the vcTarget. The tunnel calls do_io_write on
+      this VC.
+    @param aCont The Continuation to call back when the tunnel
+      finishes. If not specified, the tunnel deallocates itself without
+      calling back anybody.
+    @param SourceVio VIO of the vcSource.
+    @param reader IOBufferReader that reads from the vcSource. This
+      reader is provided to vcTarget.
+    @param aclose_source if true, the tunnel closes vcSource at the
+      end. If aCont is not specified, this should be set to true.
+    @param aclose_target if true, the tunnel closes vcTarget at the
+      end. If aCont is not specified, this should be set to true.
+  */
+  void init(VConnection * vcSource,
+            VConnection * vcTarget,
+            Continuation * aCont,
+            VIO * SourceVio, IOBufferReader * reader, bool aclose_source = true, bool aclose_target = true);
+
+  /**
+    Use this init function if both the read and the write sides have
+    already been setup. The tunnel assumes that the read VC and the
+    write VC are using the same buffer and frees that buffer
+    when the transfer is done (either successful or unsuccessful)
+    @param aCont The Continuation to call back when the tunnel finishes. If
+    not specified, the tunnel deallocates itself without calling back
+    anybody.
+
+    @param SourceVio read VIO of the Source VC.
+    @param TargetVio write VIO of the Target VC.
+    @param aclose_source if true, the tunnel closes vcSource at the
+      end. If aCont is not specified, this should be set to true.
+    @param aclose_target if true, the tunnel closes vcTarget at the
+      end. If aCont is not specified, this should be set to true.
+
+    */
+  void init(Continuation * aCont,
+            VIO * SourceVio, VIO * TargetVio, bool aclose_source = true, bool aclose_target = true);
+
+  //
+  // Private
+  //
+    OneWayTunnel(Continuation * aCont,
+                 Transform_fn manipulate_fn = NULL, bool aclose_source = false, bool aclose_target = false);
+
+  int startEvent(int event, void *data);
+
+  virtual void transform(MIOBufferAccessor & in_buf, MIOBufferAccessor & out_buf);
+
+  /** Result is -1 for any error. */
+  void close_source_vio(int result);
+
+  virtual void close_target_vio(int result, VIO * vio = ONE_WAY_TUNNEL_CLOSE_ALL);
+
+  void connection_closed(int result);
+
+  virtual void reenable_all();
+
+  bool last_connection();
+
+  VIO *vioSource;
+  VIO *vioTarget;
+  Continuation *cont;
+  Transform_fn manipulate_fn;
+  int n_connections;
+  int lerrno;
+
+  bool single_buffer;
+  bool close_source;
+  bool close_target;
+  bool tunnel_till_done;
+
+  /** Non-NULL when this is one side of a two way tunnel. */
+  OneWayTunnel *tunnel_peer;
+  bool free_vcs;
+
+private:
+    OneWayTunnel(const OneWayTunnel &);
+    OneWayTunnel & operator =(const OneWayTunnel &);
+
+};
+
+#endif
diff --git a/iocore/utils/Machine.cc b/iocore/utils/Machine.cc
new file mode 100644
index 00000000..756d3a3a
--- /dev/null
+++ b/iocore/utils/Machine.cc
@@ -0,0 +1,193 @@
+/** @file
+
+  Support class for describing the local machine.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "I_Machine.h"
+
+#if HAVE_IFADDRS_H
+#  include <ifaddrs.h>
+#endif
+
+// Singleton
+Machine* Machine::_instance = NULL;
+
+Machine*
+Machine::instance() {
+  ink_assert(_instance || !"Machine instance accessed before initialization");
+  return Machine::_instance;
+}
+
+Machine*
+Machine::init(char const* name, sockaddr const* ip) {
+  ink_assert(!_instance || !"Machine instance initialized twice.");
+  Machine::_instance = new Machine(name, ip);
+  return Machine::_instance;
+}
+
+Machine::Machine(char const* the_hostname, sockaddr const* addr)
+  : hostname(0), hostname_len(0)
+  , ip_string_len(0)
+  , ip_hex_string_len(0)
+{
+  char localhost[1024];
+  int status; // return for system calls.
+
+  ip_string[0] = 0;
+  ip_hex_string[0] = 0;
+  ink_zero(ip);
+  ink_zero(ip4);
+  ink_zero(ip6);
+
+  localhost[sizeof(localhost)-1] = 0; // ensure termination.
+
+  if (!ats_is_ip(addr)) {
+    if (!the_hostname) {
+      ink_release_assert(!gethostname(localhost, sizeof(localhost)-1));
+      the_hostname = localhost;
+    }
+    hostname = ats_strdup(the_hostname);
+
+#if HAVE_IFADDRS_H
+      ifaddrs* ifa_addrs = 0;
+      status = getifaddrs(&ifa_addrs);
+#else
+      int s = socket(AF_INET, SOCK_DGRAM, 0);
+      // This number is hard to determine, but needs to be much larger than
+      // you would expect. On a normal system with just two interfaces and
+      // one address / interface the return count is 120. Stack space is
+      // cheap so it's best to go big.
+      static const int N_REQ = 1024;
+      ifconf conf;
+      ifreq req[N_REQ];
+      if (0 <= s) {
+        conf.ifc_len = sizeof(req);
+        conf.ifc_req = req;
+        status = ioctl(s, SIOCGIFCONF, &conf);
+      } else {
+        status = -1;
+      }
+#endif
+
+    if (0 != status) {
+      Warning("Unable to determine local host '%s' address information - %s"
+        , hostname
+        , strerror(errno)
+      );
+    } else {
+      // Loop through the interface addresses and prefer by type.
+      enum {
+        NA, // Not an (IP) Address.
+        LO, // Loopback.
+        LL, // Link Local
+        PR, // Private.
+        MC, // Multicast.
+        GL  // Global.
+      } spot_type = NA, ip4_type = NA, ip6_type = NA;
+      sockaddr const* ifip;
+      unsigned int ifflags;
+      for (
+#if HAVE_IFADDRS_H
+        ifaddrs* spot = ifa_addrs ; spot ; spot = spot->ifa_next
+#else
+          ifreq* spot = req, *req_limit = req + (conf.ifc_len/sizeof(*req)) ; spot < req_limit ; ++spot
+#endif
+      ) {
+#if HAVE_IFADDRS_H
+        ifip = spot->ifa_addr;
+        ifflags = spot->ifa_flags;
+#else
+        ifip = &spot->ifr_addr;
+
+        // get the interface's flags
+        struct ifreq ifr;
+        ink_strlcpy(ifr.ifr_name, spot->ifr_name, IFNAMSIZ);
+        if (ioctl(s, SIOCGIFFLAGS, &ifr) == 0)   ifflags = ifr.ifr_flags;
+        else ifflags = 0; // flags not available, default to just looking at IP
+#endif
+        if (!ats_is_ip(ifip)) spot_type = NA;
+        else if (ats_is_ip_loopback(ifip) || (IFF_LOOPBACK & ifflags)) spot_type = LO;
+        else if (ats_is_ip_linklocal(ifip)) spot_type = LL;
+        else if (ats_is_ip_private(ifip)) spot_type = PR;
+        else if (ats_is_ip_multicast(ifip)) spot_type = MC;
+        else spot_type = GL;
+        if (spot_type == NA) continue; // Next!
+
+        if (ats_is_ip4(ifip)) {
+          if (spot_type > ip4_type) {
+            ats_ip_copy(&ip4, ifip);
+            ip4_type = spot_type;
+          }
+        } else if (ats_is_ip6(ifip)) {
+          if (spot_type > ip6_type) {
+            ats_ip_copy(&ip6, ifip);
+            ip6_type = spot_type;
+          }
+        }
+      }
+
+#if HAVE_IFADDRS_H
+      freeifaddrs(ifa_addrs);
+#endif
+
+      // What about the general address? Prefer IPv4?
+      if (ip4_type >= ip6_type)
+        ats_ip_copy(&ip.sa, &ip4.sa);
+      else
+        ats_ip_copy(&ip.sa, &ip6.sa);
+    }
+#if ! HAVE_IFADDRS_H
+    close(s);
+#endif
+  } else { // address provided.
+    ats_ip_copy(&ip, addr);
+    if (ats_is_ip4(addr)) ats_ip_copy(&ip4, addr);
+    else if (ats_is_ip6(addr)) ats_ip_copy(&ip6, addr);
+
+    status = getnameinfo(
+      addr, ats_ip_size(addr),
+      localhost, sizeof(localhost) - 1,
+      0, 0, // do not request service info
+      0 // no flags.
+    );
+
+    if (0 != status) {
+      ip_text_buffer ipbuff;
+      Warning("Failed to find hostname for address '%s' - %s"
+        , ats_ip_ntop(addr, ipbuff, sizeof(ipbuff))
+        , gai_strerror(status)
+      );
+    } else
+      hostname = ats_strdup(localhost);
+  }
+
+  hostname_len = hostname ? strlen(hostname) : 0;
+
+  ats_ip_ntop(&ip.sa, ip_string, sizeof(ip_string));
+  ip_string_len = strlen(ip_string);
+  ip_hex_string_len = ats_ip_to_hex(&ip.sa, ip_hex_string, sizeof(ip_hex_string));
+}
+
+Machine::~Machine()
+{
+  ats_free(hostname);
+}
diff --git a/iocore/utils/Makefile.am b/iocore/utils/Makefile.am
new file mode 100644
index 00000000..da46aa04
--- /dev/null
+++ b/iocore/utils/Makefile.am
@@ -0,0 +1,33 @@
+# Makefile.am for the traffic/iocore/utils hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/iocore/eventsystem
+
+noinst_LIBRARIES = libinkutils.a
+
+libinkutils_a_SOURCES = \
+  I_Machine.h \
+  I_OneWayMultiTunnel.h \
+  I_OneWayTunnel.h \
+  Machine.cc \
+  OneWayMultiTunnel.cc \
+  OneWayTunnel.cc
diff --git a/iocore/utils/Makefile.in b/iocore/utils/Makefile.in
new file mode 100644
index 00000000..5ad53ae9
--- /dev/null
+++ b/iocore/utils/Makefile.in
@@ -0,0 +1,872 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/utils hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
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+
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diff --git a/iocore/utils/OneWayMultiTunnel.cc b/iocore/utils/OneWayMultiTunnel.cc
new file mode 100644
index 00000000..549f51dc
--- /dev/null
+++ b/iocore/utils/OneWayMultiTunnel.cc
@@ -0,0 +1,256 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   OneWayMultiTunnel.h
+ ****************************************************************************/
+
+#include "P_EventSystem.h"
+#include "I_OneWayMultiTunnel.h"
+
+// #define TEST
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      OneWayMultiTunnel::OneWayMultiTunnel()
+//
+//////////////////////////////////////////////////////////////////////////////
+
+ClassAllocator<OneWayMultiTunnel> OneWayMultiTunnelAllocator("OneWayMultiTunnelAllocator");
+
+OneWayMultiTunnel::OneWayMultiTunnel():
+OneWayTunnel(), n_vioTargets(0), source_read_previously_completed(false)
+{
+}
+
+OneWayMultiTunnel *
+OneWayMultiTunnel::OneWayMultiTunnel_alloc()
+{
+  return OneWayMultiTunnelAllocator.alloc();
+}
+
+void
+OneWayMultiTunnel::OneWayMultiTunnel_free(OneWayMultiTunnel * pOWT)
+{
+
+  pOWT->mutex = NULL;
+  OneWayMultiTunnelAllocator.free(pOWT);
+}
+
+void
+OneWayMultiTunnel::init(VConnection * vcSource, VConnection ** vcTargets, int n_vcTargets, Continuation * aCont, int size_estimate, int64_t nbytes, bool asingle_buffer,    /* = true */
+                        bool aclose_source,     /* = false */
+                        bool aclose_targets,    /* = false */
+                        Transform_fn aManipulate_fn, int water_mark)
+{
+  mutex = aCont ? (ProxyMutex *) aCont->mutex : new_ProxyMutex();
+  cont = aCont;
+  manipulate_fn = aManipulate_fn;
+  close_source = aclose_source;
+  close_target = aclose_targets;
+  source_read_previously_completed = false;
+
+  SET_HANDLER(&OneWayMultiTunnel::startEvent);
+
+  n_connections = n_vioTargets + 1;
+
+  int64_t size_index = 0;
+  if (size_estimate)
+    size_index = buffer_size_to_index(size_estimate, default_large_iobuffer_size);
+  else
+    size_index = default_large_iobuffer_size;
+
+  tunnel_till_done = (nbytes == TUNNEL_TILL_DONE);
+
+  MIOBuffer *buf1 = new_MIOBuffer(size_index);
+  MIOBuffer *buf2 = NULL;
+
+  single_buffer = asingle_buffer;
+
+  if (single_buffer)
+    buf2 = buf1;
+  else
+    buf2 = new_MIOBuffer(size_index);
+  topOutBuffer.writer_for(buf2);
+
+  buf1->water_mark = water_mark;
+
+  vioSource = vcSource->do_io(VIO::READ, this, nbytes, buf1, 0);
+
+  ink_assert(n_vcTargets <= ONE_WAY_MULTI_TUNNEL_LIMIT);
+  for (int i = 0; i < n_vcTargets; i++)
+    vioTargets[i] = vcTargets[i]->do_io(VIO::WRITE, this, INT64_MAX, buf2, 0);
+
+  return;
+}
+
+void
+OneWayMultiTunnel::init(Continuation * aCont,
+                        VIO * SourceVio, VIO ** TargetVios, int n_TargetVios, bool aclose_source, bool aclose_targets)
+{
+
+  mutex = aCont ? (ProxyMutex *) aCont->mutex : new_ProxyMutex();
+  cont = aCont;
+  single_buffer = true;
+  manipulate_fn = 0;
+  n_connections = n_TargetVios + 1;;
+  close_source = aclose_source;
+  close_target = aclose_targets;
+  // The read on the source vio may have already been completed, yet
+  // we still need to write data into the target buffers.  Note this
+  // fact as we'll not get a VC_EVENT_READ_COMPLETE callback later.
+  source_read_previously_completed = (SourceVio->ntodo() == 0);
+  tunnel_till_done = true;
+  n_vioTargets = n_TargetVios;
+  topOutBuffer.writer_for(SourceVio->buffer.writer());
+
+  // do_io_read() read already posted on vcSource.
+  // do_io_write() already posted on vcTargets
+  SET_HANDLER(&OneWayMultiTunnel::startEvent);
+
+  SourceVio->set_continuation(this);
+  vioSource = SourceVio;
+
+  for (int i = 0; i < n_vioTargets; i++) {
+    vioTargets[i] = TargetVios[i];
+    vioTargets[i]->set_continuation(this);
+  }
+
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      int OneWayMultiTunnel::startEvent()
+//
+//////////////////////////////////////////////////////////////////////////////
+
+int
+OneWayMultiTunnel::startEvent(int event, void *data)
+{
+  VIO *vio = (VIO *) data;
+  int ret = VC_EVENT_DONE;
+  int result = 0;
+
+#ifdef TEST
+  const char *event_origin = (vio == vioSource ? "source" : "target"), *event_name = get_vc_event_name(event);
+  printf("OneWayMultiTunnel::startEvent --- %s received from %s VC\n", event_name, event_origin);
+#endif
+
+  // handle the event
+  //
+  switch (event) {
+
+  case VC_EVENT_READ_READY:{   // SunCC uses old scoping rules
+      transform(vioSource->buffer, topOutBuffer);
+      for (int i = 0; i < n_vioTargets; i++)
+        if (vioTargets[i])
+          vioTargets[i]->reenable();
+      ret = VC_EVENT_CONT;
+      break;
+    }
+
+  case VC_EVENT_WRITE_READY:
+    if (vioSource)
+      vioSource->reenable();
+    ret = VC_EVENT_CONT;
+    break;
+
+  case VC_EVENT_EOS:
+    if (!tunnel_till_done && vio->ntodo())
+      goto Lerror;
+    if (vio == vioSource) {
+      transform(vioSource->buffer, topOutBuffer);
+      goto Lread_complete;
+    } else
+      goto Lwrite_complete;
+
+  Lread_complete:
+  case VC_EVENT_READ_COMPLETE:{// SunCC uses old scoping rules
+      // set write nbytes to the current buffer size
+      //
+      for (int i = 0; i < n_vioTargets; i++)
+        if (vioTargets[i]) {
+          vioTargets[i]->nbytes = vioTargets[i]->ndone + vioTargets[i]->buffer.reader()->read_avail();
+          vioTargets[i]->reenable();
+        }
+      close_source_vio(0);
+      ret = VC_EVENT_DONE;
+      break;
+    }
+
+  Lwrite_complete:
+  case VC_EVENT_WRITE_COMPLETE:
+    close_target_vio(0, (VIO *) data);
+    if ((n_connections == 0) || (n_connections == 1 && source_read_previously_completed))
+      goto Ldone;
+    else if (vioSource)
+      vioSource->reenable();
+    break;
+
+  Lerror:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    result = -1;
+  Ldone:
+    close_source_vio(result);
+    close_target_vio(result);
+    connection_closed(result);
+    break;
+
+  default:
+    ret = VC_EVENT_CONT;
+    break;
+  }
+#ifdef TEST
+  printf("    (OneWayMultiTunnel returning value: %s)\n", (ret == VC_EVENT_DONE ? "VC_EVENT_DONE" : "VC_EVENT_CONT"));
+#endif
+  return (ret);
+}
+
+void
+OneWayMultiTunnel::close_target_vio(int result, VIO * vio)
+{
+  for (int i = 0; i < n_vioTargets; i++) {
+    VIO *v = vioTargets[i];
+    if (v && (!vio || v == vio)) {
+      if (last_connection() || !single_buffer)
+        free_MIOBuffer(v->buffer.writer());
+      if (close_target)
+        v->vc_server->do_io(result ? VIO::ABORT : VIO::CLOSE);
+      vioTargets[i] = NULL;
+      n_connections--;
+    }
+  }
+}
+
+void
+OneWayMultiTunnel::reenable_all()
+{
+  for (int i = 0; i < n_vioTargets; i++)
+    if (vioTargets[i])
+      vioTargets[i]->reenable();
+  if (vioSource)
+    vioSource->reenable();
+}
diff --git a/iocore/utils/OneWayTunnel.cc b/iocore/utils/OneWayTunnel.cc
new file mode 100644
index 00000000..efe50112
--- /dev/null
+++ b/iocore/utils/OneWayTunnel.cc
@@ -0,0 +1,390 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   OneWayTunnel.cc
+
+   A OneWayTunnel is a module that connects two virtual connections, a
+   source vc and a target vc, and copies the data between source and target.
+
+   This class used to be called HttpTunnelVC, but it doesn't seem to have
+   anything to do with HTTP, so it has been renamed to OneWayTunnel.
+ ****************************************************************************/
+
+#include "P_EventSystem.h"
+#include "I_OneWayTunnel.h"
+
+// #define TEST
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      OneWayTunnel::OneWayTunnel()
+//
+//////////////////////////////////////////////////////////////////////////////
+
+ClassAllocator<OneWayTunnel> OneWayTunnelAllocator("OneWayTunnelAllocator");
+
+inline void
+transfer_data(MIOBufferAccessor & in_buf, MIOBufferAccessor & out_buf)
+{
+  ink_release_assert(!"Not Implemented.");
+
+  int64_t n = in_buf.reader()->read_avail();
+  int64_t o = out_buf.writer()->write_avail();
+
+  if (n > o)
+    n = o;
+  if (!n)
+    return;
+  memcpy(in_buf.reader()->start(), out_buf.writer()->end(), n);
+  in_buf.reader()->consume(n);
+  out_buf.writer()->fill(n);
+}
+
+OneWayTunnel::OneWayTunnel():Continuation(0),
+vioSource(0), vioTarget(0), cont(0), manipulate_fn(0),
+n_connections(0), lerrno(0), single_buffer(0),
+close_source(0), close_target(0), tunnel_till_done(0), tunnel_peer(0), free_vcs(true)
+{
+}
+
+OneWayTunnel *
+OneWayTunnel::OneWayTunnel_alloc()
+{
+  return OneWayTunnelAllocator.alloc();
+}
+
+void
+OneWayTunnel::OneWayTunnel_free(OneWayTunnel * pOWT)
+{
+
+  pOWT->mutex = NULL;
+  OneWayTunnelAllocator.free(pOWT);
+}
+
+void
+OneWayTunnel::SetupTwoWayTunnel(OneWayTunnel * east, OneWayTunnel * west)
+{
+  //make sure the both use the same mutex
+  ink_assert(east->mutex == west->mutex);
+
+  east->tunnel_peer = west;
+  west->tunnel_peer = east;
+}
+
+OneWayTunnel::~OneWayTunnel()
+{
+}
+
+OneWayTunnel::OneWayTunnel(Continuation * aCont, Transform_fn aManipulate_fn, bool aclose_source, bool aclose_target)
+:
+Continuation(aCont
+             ? (ProxyMutex *) aCont->mutex
+             : new_ProxyMutex()),
+cont(aCont),
+manipulate_fn(aManipulate_fn),
+n_connections(2),
+lerrno(0),
+single_buffer(true), close_source(aclose_source), close_target(aclose_target), tunnel_till_done(false), free_vcs(false)
+{
+  ink_assert(!"This form of OneWayTunnel() constructor not supported");
+}
+
+void
+OneWayTunnel::init(VConnection * vcSource,
+                   VConnection * vcTarget,
+                   Continuation * aCont,
+                   int size_estimate,
+                   ProxyMutex * aMutex,
+                   int64_t nbytes,
+                   bool asingle_buffer,
+                   bool aclose_source, bool aclose_target, Transform_fn aManipulate_fn, int water_mark)
+{
+  mutex = aCont ? (ProxyMutex *) aCont->mutex : (aMutex ? aMutex : new_ProxyMutex());
+  cont = aMutex ? NULL : aCont;
+  single_buffer = asingle_buffer;
+  manipulate_fn = aManipulate_fn;
+  n_connections = 2;
+  close_source = aclose_source;
+  close_target = aclose_target;
+  lerrno = 0;
+  tunnel_till_done = (nbytes == TUNNEL_TILL_DONE);
+
+  SET_HANDLER(&OneWayTunnel::startEvent);
+
+  int64_t size_index = 0;
+
+  if (size_estimate)
+    size_index = buffer_size_to_index(size_estimate);
+  else
+    size_index = default_large_iobuffer_size;
+
+  Debug("one_way_tunnel", "buffer size index [%" PRId64"] [%d]\n", size_index, size_estimate);
+
+  // enqueue read request on vcSource.
+  MIOBuffer *buf1 = new_MIOBuffer(size_index);
+  MIOBuffer *buf2 = NULL;
+  if (single_buffer)
+    buf2 = buf1;
+  else
+    buf2 = new_MIOBuffer(size_index);
+
+  buf1->water_mark = water_mark;
+
+  MUTEX_LOCK(lock, mutex, this_ethread());
+  vioSource = vcSource->do_io_read(this, nbytes, buf1);
+  vioTarget = vcTarget->do_io_write(this, nbytes, buf2->alloc_reader(), 0);
+  ink_assert(vioSource && vioTarget);
+
+  return;
+}
+
+void
+OneWayTunnel::init(VConnection * vcSource,
+                   VConnection * vcTarget,
+                   Continuation * aCont,
+                   VIO * SourceVio, IOBufferReader * reader, bool aclose_source, bool aclose_target)
+{
+  (void) vcSource;
+  mutex = aCont ? (ProxyMutex *) aCont->mutex : new_ProxyMutex();
+  cont = aCont;
+  single_buffer = true;
+  manipulate_fn = 0;
+  n_connections = 2;
+  close_source = aclose_source;
+  close_target = aclose_target;
+  tunnel_till_done = true;
+
+  // Prior to constructing the OneWayTunnel, we initiated a do_io(VIO::READ)
+  // on the source VC.  We wish to use the same MIO buffer in the tunnel.
+
+  // do_io() read already posted on vcSource.
+  SET_HANDLER(&OneWayTunnel::startEvent);
+
+  SourceVio->set_continuation(this);
+  MUTEX_LOCK(lock, mutex, this_ethread());
+  vioSource = SourceVio;
+
+  vioTarget = vcTarget->do_io_write(this, TUNNEL_TILL_DONE, reader, 0);
+  ink_assert(vioSource && vioTarget);
+}
+
+void
+OneWayTunnel::init(Continuation * aCont, VIO * SourceVio, VIO * TargetVio, bool aclose_source, bool aclose_target)
+{
+  mutex = aCont ? (ProxyMutex *) aCont->mutex : new_ProxyMutex();
+  cont = aCont;
+  single_buffer = true;
+  manipulate_fn = 0;
+  n_connections = 2;
+  close_source = aclose_source;
+  close_target = aclose_target;
+  tunnel_till_done = true;
+
+  // do_io_read() read already posted on vcSource.
+  // do_io_write() already posted on vcTarget
+  SET_HANDLER(&OneWayTunnel::startEvent);
+
+  ink_assert(SourceVio && TargetVio);
+
+  SourceVio->set_continuation(this);
+  TargetVio->set_continuation(this);
+  vioSource = SourceVio;
+  vioTarget = TargetVio;
+}
+
+
+void
+OneWayTunnel::transform(MIOBufferAccessor & in_buf, MIOBufferAccessor & out_buf)
+{
+  if (manipulate_fn)
+    manipulate_fn(in_buf, out_buf);
+  else if (in_buf.writer() != out_buf.writer())
+    transfer_data(in_buf, out_buf);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      int OneWayTunnel::startEvent()
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//
+// tunnel was invoked with an event
+//
+int
+OneWayTunnel::startEvent(int event, void *data)
+{
+  VIO *vio = (VIO *) data;
+  int ret = VC_EVENT_DONE;
+  int result = 0;
+
+#ifdef TEST
+  const char *event_origin = (vio == vioSource ? "source" : "target"), *event_name = get_vc_event_name(event);
+  printf("OneWayTunnel --- %s received from %s VC\n", event_name, event_origin);
+#endif
+
+  if (!vioTarget)
+    goto Lerror;
+
+  // handle the event
+  //
+  switch (event) {
+
+  case ONE_WAY_TUNNEL_EVENT_PEER_CLOSE:
+    /* This event is sent out by our peer */
+    ink_assert(tunnel_peer);
+    tunnel_peer = NULL;
+    free_vcs = false;
+    goto Ldone;
+
+  case VC_EVENT_READ_READY:
+    transform(vioSource->buffer, vioTarget->buffer);
+    vioTarget->reenable();
+    ret = VC_EVENT_CONT;
+    break;
+
+  case VC_EVENT_WRITE_READY:
+    if (vioSource)
+      vioSource->reenable();
+    ret = VC_EVENT_CONT;
+    break;
+
+  case VC_EVENT_EOS:
+    if (!tunnel_till_done && vio->ntodo())
+      goto Lerror;
+    if (vio == vioSource) {
+      transform(vioSource->buffer, vioTarget->buffer);
+      goto Lread_complete;
+    } else
+      goto Ldone;
+
+  Lread_complete:
+  case VC_EVENT_READ_COMPLETE:
+    // set write nbytes to the current buffer size
+    //
+    vioTarget->nbytes = vioTarget->ndone + vioTarget->buffer.reader()->read_avail();
+    if (vioTarget->nbytes == vioTarget->ndone)
+      goto Ldone;
+    vioTarget->reenable();
+    if (!tunnel_peer)
+      close_source_vio(0);
+    break;
+
+  Lerror:
+  case VC_EVENT_ERROR:
+    lerrno = ((VIO *) data)->vc_server->lerrno;
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    result = -1;
+  Ldone:
+  case VC_EVENT_WRITE_COMPLETE:
+    if (tunnel_peer) {
+      //inform the peer:
+      tunnel_peer->startEvent(ONE_WAY_TUNNEL_EVENT_PEER_CLOSE, data);
+    }
+    close_source_vio(result);
+    close_target_vio(result);
+    connection_closed(result);
+    break;
+
+  default:
+    ink_assert(!"bad case");
+    ret = VC_EVENT_CONT;
+    break;
+  }
+#ifdef TEST
+  printf("    (OneWayTunnel returning value: %s)\n", (ret == VC_EVENT_DONE ? "VC_EVENT_DONE" : "VC_EVENT_CONT"));
+#endif
+  return ret;
+}
+
+// If result is Non-zero, the vc should be aborted.
+void
+OneWayTunnel::close_source_vio(int result)
+{
+
+  if (vioSource) {
+    if (last_connection() || !single_buffer) {
+      free_MIOBuffer(vioSource->buffer.writer());
+      vioSource->buffer.clear();
+    }
+    if (close_source && free_vcs) {
+      vioSource->vc_server->do_io_close(result ? lerrno : -1);
+    }
+    vioSource = NULL;
+    n_connections--;
+  }
+}
+
+void
+OneWayTunnel::close_target_vio(int result, VIO * vio)
+{
+
+  (void) vio;
+  if (vioTarget) {
+    if (last_connection() || !single_buffer) {
+      free_MIOBuffer(vioTarget->buffer.writer());
+      vioTarget->buffer.clear();
+    }
+    if (close_target && free_vcs) {
+      vioTarget->vc_server->do_io_close(result ? lerrno : -1);
+    }
+    vioTarget = NULL;
+    n_connections--;
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void OneWayTunnel::connection_closed
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+OneWayTunnel::connection_closed(int result)
+{
+  if (cont) {
+#ifdef TEST
+    cout << "OneWayTunnel::connection_closed() ... calling cont" << endl;
+#endif
+    cont->handleEvent(result ? VC_EVENT_ERROR : VC_EVENT_EOS, cont);
+  } else {
+    OneWayTunnel_free(this);
+  }
+}
+
+void
+OneWayTunnel::reenable_all()
+{
+  if (vioSource)
+    vioSource->reenable();
+  if (vioTarget)
+    vioTarget->reenable();
+}
+
+bool
+OneWayTunnel::last_connection()
+{
+  return n_connections == 1;
+}
diff --git a/iocore/utils/diags.i b/iocore/utils/diags.i
new file mode 100644
index 00000000..a6e72e81
--- /dev/null
+++ b/iocore/utils/diags.i
@@ -0,0 +1,121 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+//Diags *diags;
+#define DIAGS_LOG_FILE "diags.log"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static void
+reconfigure_diags()
+{
+  int i;
+  DiagsConfigState c;
+
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  c.enabled[DiagsTagType_Debug] = 1;
+  c.enabled[DiagsTagType_Action] = 1;
+  diags->show_location = 1;
+
+
+  // read output routing values
+  for (i = 0; i < DiagsLevel_Count; i++) {
+
+    c.outputs[i].to_stdout = 0;
+    c.outputs[i].to_stderr = 1;
+    c.outputs[i].to_syslog = 1;
+    c.outputs[i].to_diagslog = 1;
+  }
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  //                     add new tag tables 
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags)
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  if (diags->base_action_tags)
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+
+  ////////////////////////////////////
+  // change the diags config values //
+  ////////////////////////////////////
+#if !defined(__GNUC__) && !defined(hpux)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+
+}
+
+
+
+static void
+init_diags(char *bdt, char *bat)
+{
+  FILE *diags_log_fp;
+  char diags_logpath[500];
+  strcpy(diags_logpath, DIAGS_LOG_FILE);
+
+  diags_log_fp = fopen(diags_logpath, "w");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(bdt, bat, diags_log_fp);
+
+  if (diags_log_fp == NULL) {
+    SrcLoc loc(__FILE__, __FUNCTION__, __LINE__);
+
+    diags->print(NULL, DL_Warning, NULL, &loc,
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+
+  diags->print(NULL, DL_Status, "STATUS", NULL, "opened %s", diags_logpath);
+  reconfigure_diags();
+
+}
diff --git a/lib/Makefile.am b/lib/Makefile.am
new file mode 100644
index 00000000..ab097528
--- /dev/null
+++ b/lib/Makefile.am
@@ -0,0 +1,57 @@
+# lib Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = ts records
+
+if BUILD_PERL_LIB
+SUBDIRS += perl
+endif
+
+# TsConfig is only built for WCCP until the bugs are worked out.
+if BUILD_WCCP
+SUBDIRS += tsconfig wccp
+endif
+
+if ENABLE_CPPAPI
+SUBDIRS += atscppapi
+endif
+
+DIST_SUBDIRS = $(SUBDIRS)
+
+# Some special hacks around building the luajit.
+#
+#  - Copy the luajit source tree if we're doing out-of-source builds
+#  - Upon clean, remove the luajit tree from the out-of-source build tree
+#
+# Note: The LUA_LDFLAGS is a bit of a hack, since LuaJIT on OmniOS needs
+#       the -m64 flag. See configure.ac.
+#
+if BUILD_LUAJIT
+LUA_CFLAGS=$(CFLAGS) -DLUA_COMPAT_ALL -DLUA_USE_POSIX -DLUA_USE_DLOPEN
+
+all-local:
+	@echo "Making all in luajit"
+	test -d "$(top_srcdir)/$(subdir)/luajit/src" || (cd "$(top_srcdir)" && git submodule update --init)
+	test -d "$(top_builddir)/$(subdir)/luajit/src" || cp -rf "$(srcdir)/luajit" "$(top_builddir)/$(subdir)/"
+	cd luajit && $(MAKE) $(AM_MAKEFLAGS) BUILDMODE="static" PREFIX="$(prefix)" CC="$(CC)" \
+	                     CFLAGS="$(LUA_CFLAGS)" LDFLAGS="@LUA_LDFLAGS@"
+
+clean-local:
+	test "$(top_srcdir)" != "$(top_builddir)" || (cd "$(top_builddir)/$(subdir)/luajit" && make clean)
+	test "$(top_srcdir)" = "$(top_builddir)" || rm -rf "$(top_builddir)/$(subdir)/luajit"
+endif
diff --git a/lib/Makefile.in b/lib/Makefile.in
new file mode 100644
index 00000000..b4e3e453
--- /dev/null
+++ b/lib/Makefile.in
@@ -0,0 +1,896 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# lib Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
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+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
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diff --git a/lib/atscppapi/Makefile.am b/lib/atscppapi/Makefile.am
new file mode 100644
index 00000000..2e1ba774
--- /dev/null
+++ b/lib/atscppapi/Makefile.am
@@ -0,0 +1,17 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+SUBDIRS = src examples
diff --git a/lib/atscppapi/Makefile.in b/lib/atscppapi/Makefile.in
new file mode 100644
index 00000000..fcce4593
--- /dev/null
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+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
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+# (1) if the variable is set in 'config.status', edit 'config.status'
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+	if test "$$dot_seen" = "no"; then \
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+ID: $(am__tagged_files)
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+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
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+	  empty_fix=.; \
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+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags tags-am uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/async_http_fetch/AsyncHttpFetch.cc b/lib/atscppapi/examples/async_http_fetch/AsyncHttpFetch.cc
new file mode 100644
index 00000000..14ff9ccd
--- /dev/null
+++ b/lib/atscppapi/examples/async_http_fetch/AsyncHttpFetch.cc
@@ -0,0 +1,192 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/Logger.h>
+#include <atscppapi/Async.h>
+#include <atscppapi/AsyncHttpFetch.h>
+#include <atscppapi/AsyncTimer.h>
+#include <atscppapi/PluginInit.h>
+#include <cstring>
+#include <cassert>
+
+using namespace atscppapi;
+using std::string;
+
+// This is for the -T tag debugging
+// To view the debug messages ./traffic_server -T "async_http_fetch_example.*"
+#define TAG "async_http_fetch_example"
+
+class AsyncHttpFetch2 : public AsyncHttpFetch {
+public:
+  AsyncHttpFetch2(string request) : AsyncHttpFetch(request) { };
+};
+
+class AsyncHttpFetch3 : public AsyncHttpFetch {
+public:
+  AsyncHttpFetch3(string request, HttpMethod method) : AsyncHttpFetch(request, method) { };
+};
+
+class DelayedAsyncHttpFetch : public AsyncHttpFetch, public AsyncReceiver<AsyncTimer> {
+public:
+  DelayedAsyncHttpFetch(string request, HttpMethod method, shared_ptr<Mutex> mutex)
+    : AsyncHttpFetch(request, method), mutex_(mutex), timer_(NULL) { };
+  void run() {
+    timer_ = new AsyncTimer(AsyncTimer::TYPE_ONE_OFF, 1000 /* 1s */);
+    Async::execute(this, timer_, mutex_);
+  }
+  void handleAsyncComplete(AsyncTimer &/*timer ATS_UNUSED */) {
+    TS_DEBUG(TAG, "Receiver should not be reachable");
+    assert(!getDispatchController()->dispatch());
+    delete this;
+  }
+  bool isAlive() {
+    return getDispatchController()->isEnabled();
+  }
+  ~DelayedAsyncHttpFetch() { delete timer_; }
+private:
+  shared_ptr<Mutex> mutex_;
+  AsyncTimer *timer_;
+};
+
+class TransactionHookPlugin : public TransactionPlugin, public AsyncReceiver<AsyncHttpFetch>,
+                              public AsyncReceiver<AsyncHttpFetch2>, public AsyncReceiver<AsyncHttpFetch3>,
+                              public AsyncReceiver<DelayedAsyncHttpFetch> {
+public:
+  TransactionHookPlugin(Transaction &transaction) :
+    TransactionPlugin(transaction), transaction_(transaction), num_fetches_pending_(0) {
+    TS_DEBUG(TAG, "Constructed TransactionHookPlugin, saved a reference to this transaction.");
+    registerHook(HOOK_SEND_REQUEST_HEADERS);
+  }
+
+  void handleSendRequestHeaders(Transaction & /*transaction ATS_UNUSED */) {
+    Async::execute<AsyncHttpFetch>(this, new AsyncHttpFetch("http://127.0.0.1/"), getMutex());
+    ++num_fetches_pending_;
+    AsyncHttpFetch *post_request = new AsyncHttpFetch("http://127.0.0.1/post", "data");
+
+    (void)post_request;
+    
+    Async::execute<AsyncHttpFetch>(this, new AsyncHttpFetch("http://127.0.0.1/post", "data"),
+                                   getMutex());
+    ++num_fetches_pending_;
+
+    // we'll add some custom headers for this request
+    AsyncHttpFetch2 *provider2 = new AsyncHttpFetch2("http://127.0.0.1/");
+    Headers &request_headers = provider2->getRequestHeaders();
+    request_headers.set("Header1", "Value1");
+    request_headers.set("Header2", "Value2");
+    Async::execute<AsyncHttpFetch2>(this, provider2, getMutex());
+    ++num_fetches_pending_;
+
+    DelayedAsyncHttpFetch *delayed_provider = new DelayedAsyncHttpFetch("url", HTTP_METHOD_GET, getMutex());
+    Async::execute<DelayedAsyncHttpFetch>(this, delayed_provider, getMutex());
+
+    // canceling right after starting in this case, but cancel() can be called any time
+    TS_DEBUG(TAG, "Will cancel delayed fetch");
+    assert(delayed_provider->isAlive());
+    delayed_provider->cancel();
+    assert(!delayed_provider->isAlive());
+  }
+
+  void handleAsyncComplete(AsyncHttpFetch &async_http_fetch) {
+    // This will be called when our async event is complete.
+    TS_DEBUG(TAG, "AsyncHttpFetch completed");
+    handleAnyAsyncComplete(async_http_fetch);
+  }
+
+  void handleAsyncComplete(AsyncHttpFetch2 &async_http_fetch) {
+    // This will be called when our async event is complete.
+    TS_DEBUG(TAG, "AsyncHttpFetch2 completed");
+    handleAnyAsyncComplete(async_http_fetch);
+  }
+
+  virtual ~TransactionHookPlugin() {
+    TS_DEBUG(TAG, "Destroyed TransactionHookPlugin!");
+    // since we die right away, we should not receive the callback for this (using POST request this time)
+    Async::execute<AsyncHttpFetch3>(this, new AsyncHttpFetch3("http://127.0.0.1/", HTTP_METHOD_POST), getMutex());
+  }
+
+  void handleAsyncComplete(AsyncHttpFetch3 & /* async_http_fetch ATS_UNUSED */) {
+    assert(!"AsyncHttpFetch3 shouldn't have completed!");
+  }
+
+  void handleAsyncComplete(DelayedAsyncHttpFetch &/*async_http_fetch ATS_UNUSED */) {
+    assert(!"Should've been canceled!");
+  }
+
+private:
+  Transaction &transaction_;
+  int num_fetches_pending_;
+
+  void handleAnyAsyncComplete(AsyncHttpFetch &async_http_fetch) {
+    // This will be called when our async event is complete.
+    TS_DEBUG(TAG, "Fetch completed for URL [%s]", async_http_fetch.getRequestUrl().getUrlString().c_str());
+    const Response &response = async_http_fetch.getResponse();
+    if (async_http_fetch.getResult() == AsyncHttpFetch::RESULT_SUCCESS) {
+      TS_DEBUG(TAG, "Response version is [%s], status code %d, reason phrase [%s]",
+               HTTP_VERSION_STRINGS[response.getVersion()].c_str(), response.getStatusCode(), 
+               response.getReasonPhrase().c_str());
+
+      TS_DEBUG(TAG, "Reponse Headers: \n%s\n", response.getHeaders().str().c_str());
+
+      const void *body;
+      size_t body_size;
+      async_http_fetch.getResponseBody(body, body_size);
+      TS_DEBUG(TAG, "Response body is [%.*s]", static_cast<int>(body_size), static_cast<const char*>(body));
+    } else {
+      TS_ERROR(TAG, "Fetch did not complete successfully; Result %d",
+               static_cast<int>(async_http_fetch.getResult()));
+    }
+    if (--num_fetches_pending_ == 0) {
+      TS_DEBUG(TAG, "Reenabling transaction");
+      transaction_.resume();
+    }
+  }
+
+};
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    TS_DEBUG(TAG, "Registering a global hook HOOK_READ_REQUEST_HEADERS_POST_REMAP");
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    TS_DEBUG(TAG, "Received a request in handleReadRequestHeadersPostRemap.");
+
+    // If we don't make sure to check if it's an internal request we can get ourselves into an infinite loop!
+    if (!transaction.isInternalRequest()) {
+      transaction.addPlugin(new TransactionHookPlugin(transaction));
+    }
+    else {
+      TS_DEBUG(TAG, "Ignoring internal transaction");
+    }
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  TS_DEBUG(TAG, "Loaded async_http_fetch_example plugin");
+  GlobalPlugin *instance = new GlobalHookPlugin();
+
+  (void)instance;
+}
+
diff --git a/lib/atscppapi/examples/async_http_fetch/Makefile.am b/lib/atscppapi/examples/async_http_fetch/Makefile.am
new file mode 100644
index 00000000..dd792279
--- /dev/null
+++ b/lib/atscppapi/examples/async_http_fetch/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=AsyncHttpFetch.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = AsyncHttpFetch.la
+AsyncHttpFetch_la_SOURCES = AsyncHttpFetch.cc
+AsyncHttpFetch_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/async_http_fetch/Makefile.in b/lib/atscppapi/examples/async_http_fetch/Makefile.in
new file mode 100644
index 00000000..73e97e0d
--- /dev/null
+++ b/lib/atscppapi/examples/async_http_fetch/Makefile.in
@@ -0,0 +1,906 @@
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+
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+# with or without modifications, as long as this notice is preserved.
+
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
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diff --git a/lib/atscppapi/examples/async_timer/AsyncTimer.cc b/lib/atscppapi/examples/async_timer/AsyncTimer.cc
new file mode 100644
index 00000000..c8024628
--- /dev/null
+++ b/lib/atscppapi/examples/async_timer/AsyncTimer.cc
@@ -0,0 +1,86 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <atscppapi/Logger.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/AsyncTimer.h>
+#include <atscppapi/GlobalPlugin.h>
+
+using namespace atscppapi;
+using std::string;
+
+#define TAG "async_timer"
+
+class TimerEventReceiver : public AsyncReceiver<AsyncTimer> {
+public:
+  TimerEventReceiver(AsyncTimer::Type type, int period_in_ms, int initial_period_in_ms = 0, int max_instances = 0,
+                     bool cancel = false)
+    : max_instances_(max_instances), instance_count_(0), type_(type), cancel_(cancel) {
+    timer_ = new AsyncTimer(type, period_in_ms, initial_period_in_ms);
+    Async::execute<AsyncTimer>(this, timer_, shared_ptr<Mutex>()); // letting the system create the mutex
+  }
+
+  void handleAsyncComplete(AsyncTimer &timer ATSCPPAPI_UNUSED) {
+    TS_DEBUG(TAG, "Got timer event in object %p!", this);
+    if ((type_ == AsyncTimer::TYPE_ONE_OFF) || (max_instances_ && (++instance_count_ == max_instances_))) {
+      TS_DEBUG(TAG, "Stopping timer in object %p!", this);
+      cancel_ ? timer_->cancel() : delete this;
+    }
+  }
+
+  ~TimerEventReceiver() {
+    delete timer_;
+  }
+
+private:
+  int max_instances_;
+  int instance_count_;
+  AsyncTimer::Type type_;
+  AsyncTimer *timer_;
+  bool cancel_;
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  int period_in_ms = 1000;
+  TimerEventReceiver *timer1 = new TimerEventReceiver(AsyncTimer::TYPE_PERIODIC, period_in_ms);
+  TS_DEBUG(TAG, "Created periodic timer %p with initial period 0, regular period %d and max instances 0", timer1,
+           period_in_ms);
+
+  int initial_period_in_ms = 100;
+  TimerEventReceiver *timer2 = new TimerEventReceiver(AsyncTimer::TYPE_PERIODIC, period_in_ms,
+                                                      initial_period_in_ms);
+  TS_DEBUG(TAG, "Created periodic timer %p with initial period %d, regular period %d and max instances 0", timer2,
+           initial_period_in_ms, period_in_ms);
+
+  initial_period_in_ms = 200;
+  int max_instances = 10;
+  TimerEventReceiver *timer3 = new TimerEventReceiver(AsyncTimer::TYPE_PERIODIC, period_in_ms, initial_period_in_ms,
+                                                      max_instances);
+  TS_DEBUG(TAG, "Created periodic timer %p with initial period %d, regular period %d and max instances %d", timer3,
+           initial_period_in_ms, period_in_ms, max_instances);
+
+  TimerEventReceiver *timer4 = new TimerEventReceiver(AsyncTimer::TYPE_ONE_OFF, period_in_ms);
+  TS_DEBUG(TAG, "Created one-off timer %p with period %d", timer4, period_in_ms);
+
+  initial_period_in_ms = 0;
+  max_instances = 5;
+  TimerEventReceiver *timer5 = new TimerEventReceiver(AsyncTimer::TYPE_PERIODIC, period_in_ms, initial_period_in_ms,
+                                                      max_instances, true /* cancel */);
+  TS_DEBUG(TAG, "Created canceling timer %p with initial period %d, regular period %d and max instances %d", timer5,
+           initial_period_in_ms, period_in_ms, max_instances);
+}
diff --git a/lib/atscppapi/examples/async_timer/Makefile.am b/lib/atscppapi/examples/async_timer/Makefile.am
new file mode 100644
index 00000000..363e93ac
--- /dev/null
+++ b/lib/atscppapi/examples/async_timer/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target=AsyncTimer.so
+pkglibdir = ${pkglibexecdir}
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+AsyncTimer_la_SOURCES = AsyncTimer.cc
+AsyncTimer_la_LDFLAGS =  -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/async_timer/Makefile.in b/lib/atscppapi/examples/async_timer/Makefile.in
new file mode 100644
index 00000000..9c67e6db
--- /dev/null
+++ b/lib/atscppapi/examples/async_timer/Makefile.in
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+waith = @waith@
+zlibh = @zlibh@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target = boom.so
+pkglib_LTLIBRARIES = boom.la
+boom_la_SOURCES = boom.cc
+boom_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/boom/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/boom/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+boom.la: $(boom_la_OBJECTS) $(boom_la_DEPENDENCIES) $(EXTRA_boom_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(boom_la_LINK) -rpath $(pkglibdir) $(boom_la_OBJECTS) $(boom_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/boom.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-local \
+	clean-pkglibLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
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+install-info: install-info-am
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+install-info-am:
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+install-man:
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+install-ps: install-ps-am
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+install-ps-am:
+
+installcheck-am:
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+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
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+ps: ps-am
+
+ps-am:
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+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-local clean-pkglibLTLIBRARIES \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-pkglibLTLIBRARIES
+
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/boom/README.txt b/lib/atscppapi/examples/boom/README.txt
new file mode 100644
index 00000000..84325aef
--- /dev/null
+++ b/lib/atscppapi/examples/boom/README.txt
@@ -0,0 +1,72 @@
+Boom is example of how to use a global plugin to attach transaction plugins to some of the transactions. 
+
+Boom is used to serve a custom page whenever the server responds with anything other than 200. 
+
+
+Usage:
+
+To use Boom, put the plugin into the plugins directory and add the following line to plugins.config file:
+
+
+/path/to/boom.so base_directory status_list
+
+
+base_directory_path points to folder that contains custom error pages. The error pages names correspond to the errors, in the following ways:
+
+NNN.html - error page that is specific to error NNN, e.g. "404.html" is specific to HTTP 404
+
+Nxx.html - error page that is generic to error family Nxx, e.g. "4xx.html" can be served for HTTP 401, 402, 403 and so on
+
+default.html - error page that is the most general fallback. 
+
+
+Custom page resolution order
+
+Boom proceeds from the most specific to the most generic custom error page. The resolution comprises 5 phases:
+
+Phase 1 - exact match is attempted
+Phase 2 - status family match is attempted
+Phase 3 - boom attempts to serve default.html file
+Phase 4 - boom serves a compiled in fallback message. 
+
+To illustrate the resolution, lets assume the following scenario:
+ 
+- plugins.config contains the line 
+
+/path/boom.so /path/errors 404,4xx,5xx
+
+- /path/errors contains files 
+
+  /path/errors/404.html
+  /path/errors/4xx.html
+  /path/errors/3xx.html
+  /path/errors/5xx.html
+
+Lets consider the following scenarios:
+
+HTTP 404 
+
+Phase 1 - exact match is attempted:
+Since status code 404 is specified in the status_list, AND /path/errors/404.html is present, boom will serve /path/errors/404.html
+
+HTTP 403 
+
+Phase 1 - exact match is attempted:
+Since status 403 is not specified in the error list, boom skips to error family match 
+
+Phase 2 - error family match is attempted:
+Since status wildcard 4xx is specified in the error list AND /path/errors/4xx.html is present, boom will serve /path/errors/4xx.html
+
+
+HTTP 500
+Phase 1 - exact match is attempted:
+Since status 500 is not specified in the errors_list, boom skips to error family match 
+
+Phase 2 - error family match is attempted:
+File /path/errors/5xx.html is present, however status wildcard 5xx is NOT specified. Therefore boom skips to general fallback match. 
+
+Phase 3 - general fallback match is attempted:
+Since file /path/errors/default.html is not present, boom skips to the compiled in fallback 
+
+Phase 4 - compiled in fallback. 
+boom responds with the compiled in message "<html><body><h1>Your network will be back soon</h1></body></html>" 
diff --git a/lib/atscppapi/examples/boom/boom.cc b/lib/atscppapi/examples/boom/boom.cc
new file mode 100644
index 00000000..d346d03a
--- /dev/null
+++ b/lib/atscppapi/examples/boom/boom.cc
@@ -0,0 +1,417 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *   This plugin does one thing and one thing only it will
+ *   eat the origin error responses codes if instructed to do so.
+ *
+ *   boom.so error_page_path error_codes
+ *
+ *   Configuration is specified as two arguments in plugin.config
+ *   the first argument is the path to a folder containing the error
+ *   files, if you specify a error code such as 5xx or 4xx then it
+ *   will look for a file called 5xx.html or 4xx.html respectively, if it's not
+ *   found, then it will try to use default.html, if default.html is not found
+ *   the response will be the hard coded html string below.
+ *
+ *   You will specify a comma seperated list WITH NO SPACES!!!
+ *   of error codes to BOOM on, for example you can do:
+ *    3xx 4xx 5xx 6xx or you can specify individual error codes such as 501 502 404, etc...
+ *   You would put 3xx,4xx,5xx,200 in your config argument REMEMBER NO SPACES!!!!
+ *
+ *   If you specify an individual error code, it's expected that there will be a file
+ *   in your error page folder with that error code, for example 404 would expect
+ *   a page called 404.html. Error codes will try to apply the more specific rule first
+ *   for example if you have a 404 and 4xx, the 404 will attempt to match first and would
+ *   serve the 404.html page instead of the 4xx.html page. Similiarly, a 403 would
+ *   serve the 4xx.html page.
+ *
+ *   EXAMPLE:
+ *   boom.so /usr/local/boom 404,5xx
+ *
+ **/
+#include <map>
+#include <vector>
+#include <set>
+#include <string>
+#include <iostream>
+#include <sstream>
+#include <algorithm>
+#include <cstring>
+#include <fstream>
+#include <dirent.h>
+
+#include <atscppapi/Transaction.h>
+
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/Headers.h>
+#include <atscppapi/Stat.h>
+#include <atscppapi/Logger.h>
+
+using namespace atscppapi;
+#define TAG "boom"
+
+namespace {
+
+/// Name for the Boom invocation counter
+const std::string BOOM_COUNTER = "BOOM_COUNTER";
+
+// Default file name for the error HTML page TBD when this is going to be used
+const std::string DEFAULT_ERROR_FILE = "default"; // default.html will be searched for
+
+// Default error response TBD when the default response will be used
+const std::string DEFAULT_ERROR_RESPONSE =
+    "<html><body><h1>This page will be back soon</h1></body></html>";
+
+// Default HTTP status code to use after booming
+const int DEFAULT_BOOM_HTTP_STATUS_CODE = 200;
+
+// Default HTTP status string to use after booming
+const std::string DEFAULT_BOOM_HTTP_STATUS = "OK (BOOM)";
+
+Stat boom_counter;
+}
+
+// Functor that decides whether the HTTP error can be rewritten or not.
+// Rewritable codes are: 2xx, 3xx, 4xx, 5xx and 6xx.
+// 1xx is NOT rewritable!
+class IsRewritableCode: public std::unary_function<std::string, bool> { // could probably be replaced with mem_ptr_fun()..
+private:
+  int current_code_;
+  std::string current_code_string_;
+public:
+  IsRewritableCode(int current_code) :
+      current_code_(current_code) {
+    std::ostringstream oss;
+    oss << current_code_;
+    current_code_string_ = oss.str();
+  }
+
+  bool operator()(const std::string &code) const {
+    TS_DEBUG(TAG, "Checking if %s matches code %s", current_code_string_.c_str(), code.c_str());
+    if (code == current_code_string_)
+      return true;
+    if (code == "2xx" && current_code_ >= 200 && current_code_ <= 299)
+      return true;
+    if (code == "3xx" && current_code_ >= 300 && current_code_ <= 399)
+      return true;
+    if (code == "4xx" && current_code_ >= 400 && current_code_ <= 499)
+      return true;
+    if (code == "5xx" && current_code_ >= 500 && current_code_ <= 599)
+      return true;
+    if (code == "6xx" && current_code_ >= 600 && current_code_ <= 699)
+      return true;
+
+    return false;
+  }
+};
+
+class BoomResponseRegistry {
+  // Boom error codes
+  std::set<std::string> error_codes_;
+
+  // Map of error codes to error responses
+  std::map<std::string, std::string> error_responses_;
+
+  // Base directory for the file name
+  std::string base_error_directory_;
+
+  // Global default response string
+  std::string global_response_string_;
+
+  // Convert HTTP status code to string
+  std::string code_from_status(int http_status);
+
+  // Convert HTTP status code to string
+  std::string generic_code_from_status(int http_status);
+
+public:
+
+  // Set a "catchall" global default response
+  void set_global_default_response(const std::string& global_default_response);
+
+  // Populate the registry lookup table with contents of files in
+  // the base directory
+  void populate_error_responses(const std::string& base_directory);
+
+  // Return custom response string for the custom code
+  // Lookup logic (using 404 as example)
+  //  1. Check for exact match (i.e. contents of "404.html")
+  //  2. Check for generic response match (i.e. contents of "4xx.html")
+  //  3. Check for default response (i.e. contents of "default.html")
+  //  4. Check for global default response (settable through "set_global_default_response" method)
+  //  5. If all else fails, return compiled in response code
+  const std::string& get_response_for_error_code(int http_status_code);
+
+  // Returns true iff either of the three conditions are true:
+  // 1. Exact match for the error is registered (e.g. "404.html" for HTTP 404)
+  // 2. Generic response match for the error is registered (e.g. "4xx.html" for HTTP 404)
+  // 3. Default response match is registered (e.g. "default.html" for HTTP 404)
+  // Return false otherwise
+  bool has_code_registered(int http_status_code);
+
+  // Register error codes
+  void register_error_codes(const std::vector<std::string>& error_codes);
+};
+
+
+void BoomResponseRegistry::register_error_codes(const std::vector<std::string>& error_codes)
+{
+  std::vector<std::string>::const_iterator i = error_codes.begin(), e = error_codes.end();
+  for (; i != e; ++i) {
+    TS_DEBUG(TAG, "Registering error code %s", (*i).c_str());
+    error_codes_.insert(*i);
+  }
+}
+// forward declaration
+bool get_file_contents(std::string fileName, std::string &contents);
+
+// Examine the error file directory and populate the error_response
+// map with the file contents.
+void BoomResponseRegistry::populate_error_responses(const std::string& base_directory) {
+  base_error_directory_ = base_directory;
+
+  // Make sure we have a trailing / after the base directory
+  if (!base_error_directory_.empty()
+      && base_error_directory_[base_error_directory_.length() - 1] != '/')
+    base_error_directory_.append("/"); // make sure we have a trailing /
+
+  // Iterate over files in the base directory.
+  // Filename (sans the .html suffix) becomes the entry to the
+  // registry lookup table
+  DIR *pDIR = NULL;
+  struct dirent *entry;
+
+  pDIR = opendir(base_error_directory_.c_str());
+  if (pDIR != NULL) {
+    while (true) {
+      entry = readdir(pDIR);
+      if (entry == NULL)
+        break;
+
+      if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) {
+        std::string file_name(entry->d_name, strlen(entry->d_name));
+        if (file_name.length() > 5 && file_name.substr(file_name.length() - 5, 5) == ".html") {
+          // File is .html, load the file into the map...
+          std::string file_contents;
+          if (get_file_contents(base_error_directory_ + file_name, file_contents)) {
+            std::string error_code(file_name.substr(0, file_name.length() - 5));
+            TS_DEBUG(TAG, "Adding response to error code %s from file %s", error_code.c_str(), file_name.c_str());
+            error_responses_[error_code] = file_contents;
+          }
+        }
+      }
+    }
+    closedir(pDIR);
+  }
+}
+
+void BoomResponseRegistry::set_global_default_response(const std::string& global_default_response) {
+  global_response_string_ = global_default_response;
+}
+
+const std::string& BoomResponseRegistry::get_response_for_error_code(int http_status_code) {
+  std::string code_str = code_from_status(http_status_code);
+
+  if (error_responses_.count(code_str))
+    return error_responses_[code_str];
+
+  std::string gen_code_str = generic_code_from_status(http_status_code);
+
+  if (error_responses_.count(gen_code_str))
+    return error_responses_[gen_code_str];
+
+  if (error_responses_.count(DEFAULT_ERROR_FILE))
+    return error_responses_[DEFAULT_ERROR_FILE];
+
+  return DEFAULT_ERROR_RESPONSE;
+}
+
+bool BoomResponseRegistry::has_code_registered(int http_status_code) {
+  // Only rewritable codes are allowed.
+  std::set<std::string>::iterator ii = std::find_if(error_codes_.begin(), error_codes_.end(), IsRewritableCode(http_status_code));
+  if (ii == error_codes_.end())
+    return false;
+  else
+    return true;
+}
+
+std::string BoomResponseRegistry::generic_code_from_status(int code) {
+  if (code >= 200 && code <= 299)
+    return "2xx";
+  else if (code >= 300 && code <= 399)
+    return "3xx";
+  else if (code >= 400 && code <= 499)
+    return "4xx";
+  else if (code >= 500 && code <= 599)
+    return "5xx";
+  else
+    return "default";
+}
+
+std::string BoomResponseRegistry::code_from_status(int code) {
+  std::ostringstream oss;
+  oss << code;
+  std::string code_str = oss.str();
+  return code_str;
+}
+
+// Transaction plugin that intercepts error and displays
+// a error page as configured
+class BoomTransactionPlugin: public TransactionPlugin {
+public:
+  BoomTransactionPlugin(Transaction &transaction, HttpStatus status, const std::string &reason,
+      const std::string &body) :
+      TransactionPlugin(transaction), status_(status), reason_(reason), body_(body) {
+    TransactionPlugin::registerHook(HOOK_SEND_RESPONSE_HEADERS);
+    TS_DEBUG(TAG, "Created BoomTransaction plugin for txn=%p, status=%d, reason=%s, body length=%d",
+        transaction.getAtsHandle(), status, reason.c_str(), static_cast<int>(body.length()));
+    transaction.error(body_); // Set the error body now, and change the status and reason later.
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    transaction.getClientResponse().setStatusCode(status_);
+    transaction.getClientResponse().setReasonPhrase(reason_);
+    transaction.resume();
+  }
+
+private:
+  HttpStatus status_;
+  std::string reason_;
+  std::string body_;
+};
+
+// Utility routine to split string by delimiter.
+void stringSplit(const std::string &in, char delim, std::vector<std::string> &res) {
+  std::istringstream ss(in);
+  std::string item;
+  while (std::getline(ss, item, delim)) {
+    res.push_back(item);
+  }
+}
+
+// Utility routine to read file contents into a string
+// @returns true if the file exists and has been successfully read
+bool get_file_contents(std::string fileName, std::string &contents) {
+  if (fileName.empty()) {
+    return false;
+  }
+
+  std::ifstream file(fileName.c_str());
+  if (!file.good()) {
+    return false;
+  }
+
+  size_t BUF_SIZE = 1024;
+  std::vector<char> buf(BUF_SIZE);
+
+  while (!file.eof()) {
+    file.read(&buf[0], BUF_SIZE);
+    if (file.gcount() > 0) {
+      contents.append(&buf[0], file.gcount());
+    }
+  }
+
+  return true;
+}
+
+class BoomGlobalPlugin: public atscppapi::GlobalPlugin {
+
+private:
+  BoomResponseRegistry *response_registry_;
+
+public:
+  BoomGlobalPlugin(BoomResponseRegistry* response_registry) :
+      response_registry_(response_registry) {
+    TS_DEBUG(TAG, "Creating BoomGlobalHook %p", this);
+    registerHook(HOOK_READ_RESPONSE_HEADERS);
+  }
+
+  // Upcall method that is called for every transaction.
+  void handleReadResponseHeaders(Transaction &transaction);
+
+private:
+  BoomGlobalPlugin();
+};
+
+void BoomGlobalPlugin::handleReadResponseHeaders(Transaction &transaction) {
+    // Get response status code from the transaction
+    HttpStatus http_status_code = transaction.getServerResponse().getStatusCode();
+
+    TS_DEBUG(TAG, "Checking if response with code %d is in the registry.", http_status_code);
+
+    // If the custom response for the error code is registered,
+    // attach the BoomTransactionPlugin to the transaction
+    if (response_registry_->has_code_registered(http_status_code)) {
+      // Get the original reason phrase string from the transaction
+      std::string http_reason_phrase = transaction.getServerResponse().getReasonPhrase();
+
+      TS_DEBUG(TAG, "Response has code %d which matches a registered code, TransactionPlugin will be created.", http_status_code);
+      // Increment the statistics counter
+      boom_counter.increment();
+
+      // Get custom response code from the registry
+      const std::string& custom_response = response_registry_->get_response_for_error_code(
+          http_status_code);
+
+      // Add the transaction plugin to the transaction
+      transaction.addPlugin(
+          new BoomTransactionPlugin(transaction, http_status_code, http_reason_phrase,
+              custom_response));
+      // No need to resume/error the transaction,
+      // as BoomTransactionPlugin will take care of terminating the transaction
+      return;
+    } else {
+      TS_DEBUG(TAG, "Code %d was not in the registry, transaction will be resumed", http_status_code);
+      transaction.resume();
+    }
+  }
+
+/*
+ * This is the plugin registration point
+ */
+void TSPluginInit(int argc, const char *argv[]) {
+
+  boom_counter.init(BOOM_COUNTER);
+  BoomResponseRegistry *pregistry = new BoomResponseRegistry();
+
+  // If base directory and list of codes are specified,
+  // create a custom registry and initialize Boom with it.
+  // Otherwise, run with default registry.
+  if (argc == 3) {
+    std::string base_directory(argv[1], strlen(argv[1]));
+    pregistry->populate_error_responses(base_directory);
+
+    std::string error_codes_argument(argv[2], strlen(argv[2]));
+    std::vector < std::string > error_codes;
+    stringSplit(error_codes_argument, ',', error_codes);
+    pregistry->register_error_codes(error_codes);
+  } else {
+    TS_ERROR(TAG, "Invalid number of command line arguments, using compile time defaults.");
+  }
+
+  BoomGlobalPlugin *pboom = new BoomGlobalPlugin(pregistry);
+}
+
diff --git a/lib/atscppapi/examples/clientredirect/ClientRedirect.cc b/lib/atscppapi/examples/clientredirect/ClientRedirect.cc
new file mode 100644
index 00000000..7e6afabd
--- /dev/null
+++ b/lib/atscppapi/examples/clientredirect/ClientRedirect.cc
@@ -0,0 +1,76 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+
+using std::cout;
+using std::endl;
+using std::list;
+using std::string;
+
+
+class ClientRedirectTransactionPlugin : public atscppapi::TransactionPlugin {
+public:
+  ClientRedirectTransactionPlugin(Transaction &transaction, const string &location)
+     : TransactionPlugin(transaction), location_(location) {
+
+    //
+    // We will set this transaction to jump to error state and then we will setup
+    // the redirect on SEND_RESPONSE_HEADERS
+    //
+    TransactionPlugin::registerHook(HOOK_SEND_RESPONSE_HEADERS);
+    transaction.error();
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    transaction.getClientResponse().setStatusCode(HTTP_STATUS_MOVED_TEMPORARILY);
+    transaction.getClientResponse().setReasonPhrase("Moved Temporarily");
+    transaction.getClientResponse().getHeaders()["Location"] = location_;
+    transaction.resume();
+  }
+
+  virtual ~ClientRedirectTransactionPlugin() { }
+private:
+  string location_;
+};
+
+
+class ClientRedirectGlobalPlugin : public GlobalPlugin {
+public:
+  ClientRedirectGlobalPlugin() {
+    registerHook(HOOK_SEND_REQUEST_HEADERS);
+  }
+
+  void handleSendRequestHeaders(Transaction &transaction) {
+    if(transaction.getClientRequest().getUrl().getQuery().find("redirect=1") != string::npos) {
+      transaction.addPlugin(new ClientRedirectTransactionPlugin(transaction, "http://www.linkedin.com/"));
+      return;
+    }
+    transaction.resume();
+  }
+
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new ClientRedirectGlobalPlugin();
+}
diff --git a/lib/atscppapi/examples/clientredirect/Makefile.am b/lib/atscppapi/examples/clientredirect/Makefile.am
new file mode 100644
index 00000000..6c68195c
--- /dev/null
+++ b/lib/atscppapi/examples/clientredirect/Makefile.am
@@ -0,0 +1,28 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target=ClientRedirect.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = ClientRedirect.la
+ClientRedirect_la_SOURCES = ClientRedirect.cc
+ClientRedirect_la_LDFLAGS =  -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/clientredirect/Makefile.in b/lib/atscppapi/examples/clientredirect/Makefile.in
new file mode 100644
index 00000000..d51c73f8
--- /dev/null
+++ b/lib/atscppapi/examples/clientredirect/Makefile.in
@@ -0,0 +1,906 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
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+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target = ClientRedirect.so
+pkglib_LTLIBRARIES = ClientRedirect.la
+ClientRedirect_la_SOURCES = ClientRedirect.cc
+ClientRedirect_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/clientredirect/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/clientredirect/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+ClientRedirect.la: $(ClientRedirect_la_OBJECTS) $(ClientRedirect_la_DEPENDENCIES) $(EXTRA_ClientRedirect_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(ClientRedirect_la_LINK) -rpath $(pkglibdir) $(ClientRedirect_la_OBJECTS) $(ClientRedirect_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ClientRedirect.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-local \
+	clean-pkglibLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-local clean-pkglibLTLIBRARIES \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-pkglibLTLIBRARIES
+
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/clientrequest/ClientRequest.cc b/lib/atscppapi/examples/clientrequest/ClientRequest.cc
new file mode 100644
index 00000000..3a2524c8
--- /dev/null
+++ b/lib/atscppapi/examples/clientrequest/ClientRequest.cc
@@ -0,0 +1,127 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/utils.h>
+
+using namespace atscppapi;
+
+using std::cout;
+using std::endl;
+using std::list;
+using std::string;
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    registerHook(HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+    registerHook(HOOK_SEND_REQUEST_HEADERS);
+  }
+
+
+  void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+    cout << "Hello from handleReadRequesHeadersPreRemap!" << endl;
+
+    ClientRequest &client_request = transaction.getClientRequest();
+    Url &request_url = client_request.getUrl();
+
+    cout << "Method is " << HTTP_METHOD_STRINGS[client_request.getMethod()] << endl;
+    cout << "Version is " << HTTP_VERSION_STRINGS[client_request.getVersion()] << endl;
+    cout << "---------------------------------------------------" << endl;
+    cout << "URL is " << request_url.getUrlString() << endl;
+    cout << "Path is " << request_url.getPath() << endl;
+    cout << "Query is " << request_url.getQuery() << endl;
+    cout << "Host is " << request_url.getHost() << endl;
+    cout << "Port is " << request_url.getPort() << endl;
+    cout << "Scheme is " << request_url.getScheme() << endl;
+    cout << "---------------------------------------------------" << endl;
+    if (request_url.getPath() == "remap_me") {
+      request_url.setPath("index.html");
+    }
+
+    transaction.resume();
+  }
+
+
+  void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    cout << "Hello from handleReadRequesHeadersPostRemap!" << endl;
+
+    ClientRequest &client_request = transaction.getClientRequest();
+    Url &request_url = client_request.getUrl();
+    const Url &pristine_request_url = client_request.getPristineUrl();
+
+    cout << "--------------------PRISTINE-----------------------" << endl;
+    cout << "URL is " << pristine_request_url.getUrlString() << endl;
+    cout << "Path is " << pristine_request_url.getPath() << endl;
+    cout << "--------------------POST REMAP---------------------" << endl;
+    cout << "URL is " << request_url.getUrlString() << endl;
+    cout << "Path is " << request_url.getPath() << endl;
+    cout << "---------------------------------------------------" << endl;
+
+    Headers &client_request_headers = client_request.getHeaders();
+
+    Headers::iterator ii = client_request_headers.find("AccepT-EncodinG");
+    if(ii != client_request_headers.end()) {
+      cout << "Deleting accept-encoding header" << endl;
+      client_request_headers.erase("AccepT-EnCoDing"); // Case Insensitive
+    }
+
+    // These will be split back up into a list of three values automatically (see header output below).
+    cout << "Adding back Accept-Encoding." << endl;
+    client_request_headers["accept-encoding"] = "gzip, identity";
+    client_request_headers.append("accept-ENCODING", "my_special_format");
+
+    cout << "Adding a new accept type accept header" << endl;
+    client_request_headers.append("accept", "text/blah");
+
+    for (Headers::iterator header_iter = client_request_headers.begin(),
+           header_end = client_request_headers.end(); header_iter != header_end; ++header_iter) {
+      cout << (*header_iter).str() << endl;
+    }
+
+    /*
+     * These will output:
+     * Joining on a non-existant header gives:
+     * Joining the accept encoding header gives: gzip,identity,my_special_format
+     * Joining the accept encoding header with space gives: gzip identity my_special_format
+     */
+    cout << "Joining on a non-existant header gives: " << client_request_headers.values("i_dont_exist") << endl;
+    cout << "Joining the accept encoding header gives: " << client_request_headers.values("accept-encoding") << endl;
+    cout << "Joining the accept encoding header with space gives: " << client_request_headers.values("accept-encoding", ' ') << endl;
+
+    transaction.resume();
+  }
+
+  void handleSendRequestHeaders(Transaction &transaction) {
+    cout << "Hello from handleSendRequestHeaders!" << endl;
+    cout << "---------------------IP INFORMATION-----------------" << endl;
+    cout << "Server Address: " << utils::getIpPortString(transaction.getServerAddress()) << endl;
+    cout << "Incoming Address: " << utils::getIpPortString(transaction.getIncomingAddress()) << endl;
+    cout << "Client Address: " << utils::getIpPortString(transaction.getClientAddress()) << endl;
+    cout << "Next Hop Address: " << utils::getIpPortString(transaction.getNextHopAddress()) << endl;
+    transaction.resume();
+  }
+
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new GlobalHookPlugin();
+}
diff --git a/lib/atscppapi/examples/clientrequest/Makefile.am b/lib/atscppapi/examples/clientrequest/Makefile.am
new file mode 100644
index 00000000..452c1c05
--- /dev/null
+++ b/lib/atscppapi/examples/clientrequest/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=ClientRequest.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = ClientRequest.la
+ClientRequest_la_SOURCES = ClientRequest.cc
+ClientRequest_la_LDFLAGS =  -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/clientrequest/Makefile.in b/lib/atscppapi/examples/clientrequest/Makefile.in
new file mode 100644
index 00000000..455a1f3f
--- /dev/null
+++ b/lib/atscppapi/examples/clientrequest/Makefile.in
@@ -0,0 +1,906 @@
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+
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+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/clientrequest/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/clientrequest/Makefile
+.PRECIOUS: Makefile
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+	@case '$?' in \
+	  *config.status*) \
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+	  *) \
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+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
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+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+ClientRequest.la: $(ClientRequest_la_OBJECTS) $(ClientRequest_la_DEPENDENCIES) $(EXTRA_ClientRequest_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(ClientRequest_la_LINK) -rpath $(pkglibdir) $(ClientRequest_la_OBJECTS) $(ClientRequest_la_LIBADD) $(LIBS)
+
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+	  if test $$# -gt 0; then \
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+	      "$$@" $$unique; \
+	  else \
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+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
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+	esac; \
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+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
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+distdir: $(DISTFILES)
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+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "it deletes files that may require special tools to rebuild."
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+	clean-libtool clean-local clean-pkglibLTLIBRARIES \
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+	ln -sf .libs/$(target)
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+	rm -f $(target)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/customresponse/CustomResponse.cc b/lib/atscppapi/examples/customresponse/CustomResponse.cc
new file mode 100644
index 00000000..fef12634
--- /dev/null
+++ b/lib/atscppapi/examples/customresponse/CustomResponse.cc
@@ -0,0 +1,82 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <string>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+
+using std::cout;
+using std::endl;
+using std::string;
+
+/*
+ *
+ * This example demonstrates how you can exploit .error() to send
+ * any response from any state by forcing the state machine to
+ * jump to the error state. You will then send your custom
+ * response in sendResponseHeaders() rather than the error page.
+ *
+ */
+
+class CustomResponseTransactionPlugin : public atscppapi::TransactionPlugin {
+public:
+  CustomResponseTransactionPlugin(Transaction &transaction, HttpStatus status, const string &reason, const string &body)
+     : TransactionPlugin(transaction), status_(status), reason_(reason), body_(body) {
+    TransactionPlugin::registerHook(HOOK_SEND_RESPONSE_HEADERS);
+    transaction.error(body_); // Set the error body now, and change the status and reason later.
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    transaction.getClientResponse().setStatusCode(status_);
+    transaction.getClientResponse().setReasonPhrase(reason_);
+    transaction.resume();
+  }
+
+  virtual ~CustomResponseTransactionPlugin() { }
+private:
+  HttpStatus status_;
+  string reason_;
+  string body_;
+};
+
+
+class ClientRedirectGlobalPlugin : public GlobalPlugin {
+public:
+  ClientRedirectGlobalPlugin() {
+    registerHook(HOOK_SEND_REQUEST_HEADERS);
+  }
+
+  void handleSendRequestHeaders(Transaction &transaction) {
+    if(transaction.getClientRequest().getUrl().getQuery().find("custom=1") != string::npos) {
+      transaction.addPlugin(new CustomResponseTransactionPlugin(transaction, HTTP_STATUS_OK, "Ok",
+                                                                "Hello! This is a custom response without making "
+                                                                "an origin request and no server intercept."));
+      return; // dont forget to return since the CustomResponse call will call .error().
+    }
+    transaction.resume();
+  }
+
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new ClientRedirectGlobalPlugin();
+}
diff --git a/lib/atscppapi/examples/customresponse/Makefile.am b/lib/atscppapi/examples/customresponse/Makefile.am
new file mode 100644
index 00000000..5b850fdd
--- /dev/null
+++ b/lib/atscppapi/examples/customresponse/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=CustomResponse.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = CustomResponse.la
+CustomResponse_la_SOURCES = CustomResponse.cc
+CustomResponse_la_LDFLAGS =  -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/customresponse/Makefile.in b/lib/atscppapi/examples/customresponse/Makefile.in
new file mode 100644
index 00000000..d7315d0a
--- /dev/null
+++ b/lib/atscppapi/examples/customresponse/Makefile.in
@@ -0,0 +1,906 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
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+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
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+         exit 1;; \
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+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target = CustomResponse.so
+pkglib_LTLIBRARIES = CustomResponse.la
+CustomResponse_la_SOURCES = CustomResponse.cc
+CustomResponse_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/customresponse/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/customresponse/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+	esac;
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+
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+CustomResponse.la: $(CustomResponse_la_OBJECTS) $(CustomResponse_la_DEPENDENCIES) $(EXTRA_CustomResponse_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(CustomResponse_la_LINK) -rpath $(pkglibdir) $(CustomResponse_la_OBJECTS) $(CustomResponse_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/CustomResponse.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
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+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	$(am__define_uniq_tagged_files); \
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+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
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+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
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+	esac; \
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+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
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+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-generic clean-libtool clean-local \
+	clean-pkglibLTLIBRARIES mostlyclean-am
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+# Otherwise a system limit (for SysV at least) may be exceeded.
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diff --git a/lib/atscppapi/examples/globalhook/GlobalHookPlugin.cc b/lib/atscppapi/examples/globalhook/GlobalHookPlugin.cc
new file mode 100644
index 00000000..7e479339
--- /dev/null
+++ b/lib/atscppapi/examples/globalhook/GlobalHookPlugin.cc
@@ -0,0 +1,41 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    registerHook(HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+    std::cout << "Hello from handleReadRequesHeadersPreRemap!" << std::endl;
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new GlobalHookPlugin();
+}
+
+
diff --git a/lib/atscppapi/examples/globalhook/Makefile.am b/lib/atscppapi/examples/globalhook/Makefile.am
new file mode 100644
index 00000000..a9b301af
--- /dev/null
+++ b/lib/atscppapi/examples/globalhook/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=GlobalHookPlugin.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = GlobalHookPlugin.la
+GlobalHookPlugin_la_SOURCES = GlobalHookPlugin.cc
+GlobalHookPlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/globalhook/Makefile.in b/lib/atscppapi/examples/globalhook/Makefile.in
new file mode 100644
index 00000000..10246df2
--- /dev/null
+++ b/lib/atscppapi/examples/globalhook/Makefile.in
@@ -0,0 +1,906 @@
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+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
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+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
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+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/globalhook/Makefile
+.PRECIOUS: Makefile
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+	  *config.status*) \
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+	  *) \
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+	}
+
+uninstall-pkglibLTLIBRARIES:
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+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+GlobalHookPlugin.la: $(GlobalHookPlugin_la_OBJECTS) $(GlobalHookPlugin_la_DEPENDENCIES) $(EXTRA_GlobalHookPlugin_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(GlobalHookPlugin_la_LINK) -rpath $(pkglibdir) $(GlobalHookPlugin_la_OBJECTS) $(GlobalHookPlugin_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/GlobalHookPlugin.Plo@am__quote@
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+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
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+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-local \
+	clean-pkglibLTLIBRARIES mostlyclean-am
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+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+	distclean-tags
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+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
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+	ln -sf .libs/$(target)
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/gzip_transformation/GzipTransformationPlugin.cc b/lib/atscppapi/examples/gzip_transformation/GzipTransformationPlugin.cc
new file mode 100644
index 00000000..caae81a3
--- /dev/null
+++ b/lib/atscppapi/examples/gzip_transformation/GzipTransformationPlugin.cc
@@ -0,0 +1,170 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/TransformationPlugin.h>
+#include <atscppapi/GzipInflateTransformation.h>
+#include <atscppapi/GzipDeflateTransformation.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/Logger.h>
+
+using namespace atscppapi;
+using namespace atscppapi::transformations;
+using std::string;
+
+#define TAG "gzip_transformation"
+
+/*
+ * Note, the GzipInflateTransformation and GzipDeflateTransformation do not
+ * check headers to determine if the content was gziped and it doesn't check
+ * headers to make sure the client supports gzip, this is entirely up to the plugin
+ * to verify that the content-encoding is gzipped, it's also up to the client
+ * to make sure the user's accept-encoding supports gzip.
+ *
+ * Read this example very carefully, in this example we modify the Accept-Encoding
+ * header to the origin to ensure that we will be returned gzipped or identity encoding
+ * content. If we receive gzipped content we will inflate it, we will apply our transformation
+ * and if the client supports gzip we will deflate the content that we transformed. Finally,
+ * if the user supported gzip (then they got gzip) and we must make sure the content-encoding
+ * header is correctly set on the way out.
+ */
+
+class Helpers {
+public:
+  static bool clientAcceptsGzip(Transaction &transaction) {
+    return transaction.getClientRequest().getHeaders().values("Accept-Encoding").find("gzip") != string::npos;
+  }
+
+  static bool serverReturnedGzip(Transaction &transaction) {
+    return transaction.getServerResponse().getHeaders().values("Content-Encoding").find("gzip") != string::npos;
+  }
+
+  enum ContentType { UNKNOWN = 0, TEXT_HTML  = 1, TEXT_PLAIN = 2 };
+
+  static ContentType getContentType(Transaction &transaction) {
+    if (transaction.getServerResponse().getHeaders().values("Content-Type").find("text/html") != string::npos) {
+      return TEXT_HTML;
+    } else if (transaction.getServerResponse().getHeaders().values("Content-Type").find("text/plain") != string::npos) {
+      return TEXT_PLAIN;
+    } else {
+      return UNKNOWN;
+    }
+  }
+};
+
+class SomeTransformationPlugin : public TransformationPlugin {
+public:
+  SomeTransformationPlugin(Transaction &transaction)
+    : TransformationPlugin(transaction, RESPONSE_TRANSFORMATION), transaction_(transaction) {
+    registerHook(HOOK_SEND_RESPONSE_HEADERS);
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    TS_DEBUG(TAG, "Added X-Content-Transformed header");
+    transaction.getClientResponse().getHeaders()["X-Content-Transformed"] = "1";
+    transaction.resume();
+  }
+
+  void consume(const string &data) {
+    produce(data);
+  }
+
+  void handleInputComplete() {
+    Helpers::ContentType content_type = Helpers::getContentType(transaction_);
+    if (content_type == Helpers::TEXT_HTML) {
+      TS_DEBUG(TAG, "Adding an HTML comment at the end of the page");
+      produce("\n<br /><!-- Gzip Transformation Plugin Was Here -->");
+    } else if (content_type == Helpers::TEXT_PLAIN) {
+      TS_DEBUG(TAG, "Adding a text comment at the end of the page");
+      produce("\nGzip Transformation Plugin Was Here");
+    } else {
+      TS_DEBUG(TAG, "Unable to add TEXT or HTML comment because content type was not text/html or text/plain.");
+    }
+    setOutputComplete();
+  }
+
+  virtual ~SomeTransformationPlugin() { }
+private:
+  Transaction &transaction_;
+};
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    registerHook(HOOK_SEND_REQUEST_HEADERS);
+    registerHook(HOOK_READ_RESPONSE_HEADERS);
+    registerHook(HOOK_SEND_RESPONSE_HEADERS);
+  }
+
+  virtual void handleSendRequestHeaders(Transaction &transaction) {
+    // Since we can only decompress gzip we will change the accept encoding header
+    // to gzip, even if the user cannot accept gziped content we will return to them
+    // uncompressed content in that case since we have to be able to transform the content.
+    string original_accept_encoding = transaction.getServerRequest().getHeaders().values("Accept-Encoding");
+
+    // Make sure it's done on the server request to avoid clobbering the clients original accept encoding header.
+    transaction.getServerRequest().getHeaders()["Accept-Encoding"] = "gzip";
+    TS_DEBUG(TAG, "Changed the servers request accept encoding header from \"%s\" to gzip", original_accept_encoding.c_str());
+
+    transaction.resume();
+  }
+
+  virtual void handleReadResponseHeaders(Transaction &transaction) {
+    TS_DEBUG(TAG, "Determining if we need to add an inflate transformation or a deflate transformation..");
+    // We're guaranteed to have been returned either gzipped content or Identity.
+
+    if (Helpers::serverReturnedGzip(transaction)) {
+      // If the returned content was gziped we will inflate it so we can transform it.
+      TS_DEBUG(TAG,"Creating Inflate Transformation because the server returned gziped content");
+      transaction.addPlugin(new GzipInflateTransformation(transaction,
+                                                          TransformationPlugin::RESPONSE_TRANSFORMATION));
+    }
+
+    transaction.addPlugin(new SomeTransformationPlugin(transaction));
+
+    // Even if the server didn't return gziped content, if the user supports it we will gzip it.
+    if (Helpers::clientAcceptsGzip(transaction)) {
+      TS_DEBUG(TAG,"The client supports gzip so we will deflate the content on the way out.");
+      transaction.addPlugin(new GzipDeflateTransformation(transaction,
+                                                          TransformationPlugin::RESPONSE_TRANSFORMATION));
+    }
+    transaction.resume();
+  }
+
+  virtual void handleSendResponseHeaders(Transaction &transaction) {
+    // If the client supported gzip then we can guarantee they are receiving gzip since regardless of the
+    // origins content-encoding we returned gzip, so let's make sure the content-encoding header is correctly
+    // set to gzip or identity.
+    if (Helpers::clientAcceptsGzip(transaction)) {
+      TS_DEBUG(TAG,"Setting the client response content-encoding to gzip since the user supported it, that's what they got.");
+      transaction.getClientResponse().getHeaders()["Content-Encoding"] = "gzip";
+    } else {
+      TS_DEBUG(TAG,"Setting the client response content-encoding to identity since the user didn't support gzip");
+      transaction.getClientResponse().getHeaders()["Content-Encoding"] = "identity";
+    }
+    transaction.resume();
+  }
+
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  TS_DEBUG(TAG, "TSPluginInit");
+  new GlobalHookPlugin();
+}
diff --git a/lib/atscppapi/examples/gzip_transformation/Makefile.am b/lib/atscppapi/examples/gzip_transformation/Makefile.am
new file mode 100644
index 00000000..98dd8cd7
--- /dev/null
+++ b/lib/atscppapi/examples/gzip_transformation/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=GzipTransformationPlugin.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = GzipTransformationPlugin.la
+GzipTransformationPlugin_la_SOURCES = GzipTransformationPlugin.cc
+GzipTransformationPlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/gzip_transformation/Makefile.in b/lib/atscppapi/examples/gzip_transformation/Makefile.in
new file mode 100644
index 00000000..cabbff68
--- /dev/null
+++ b/lib/atscppapi/examples/gzip_transformation/Makefile.in
@@ -0,0 +1,907 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+all: all-am
+
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+	    *$$dep*) \
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+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/gzip_transformation/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/gzip_transformation/Makefile
+.PRECIOUS: Makefile
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+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
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+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
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+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
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+	done
+
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+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+GzipTransformationPlugin.la: $(GzipTransformationPlugin_la_OBJECTS) $(GzipTransformationPlugin_la_DEPENDENCIES) $(EXTRA_GzipTransformationPlugin_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(GzipTransformationPlugin_la_LINK) -rpath $(pkglibdir) $(GzipTransformationPlugin_la_OBJECTS) $(GzipTransformationPlugin_la_LIBADD) $(LIBS)
+
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+distdir: $(DISTFILES)
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+	fi
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diff --git a/lib/atscppapi/examples/helloworld/HelloWorldPlugin.cc b/lib/atscppapi/examples/helloworld/HelloWorldPlugin.cc
new file mode 100644
index 00000000..8d32502d
--- /dev/null
+++ b/lib/atscppapi/examples/helloworld/HelloWorldPlugin.cc
@@ -0,0 +1,36 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+class HelloWorldPlugin : public atscppapi::GlobalPlugin {
+public:
+  HelloWorldPlugin() {
+    std::cout << "Hello World!" << std::endl;
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  std::cout << "Hello from " << argv[0] << std::endl;
+  new HelloWorldPlugin();
+}
+
+
diff --git a/lib/atscppapi/examples/helloworld/Makefile.am b/lib/atscppapi/examples/helloworld/Makefile.am
new file mode 100644
index 00000000..9bb13dfb
--- /dev/null
+++ b/lib/atscppapi/examples/helloworld/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=HelloWorldPlugin.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = HelloWorldPlugin.la
+HelloWorldPlugin_la_SOURCES = HelloWorldPlugin.cc
+HelloWorldPlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/helloworld/Makefile.in b/lib/atscppapi/examples/helloworld/Makefile.in
new file mode 100644
index 00000000..731351bf
--- /dev/null
+++ b/lib/atscppapi/examples/helloworld/Makefile.in
@@ -0,0 +1,906 @@
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+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+intercept_la_LIBADD =
+am_intercept_la_OBJECTS = intercept.lo
+intercept_la_OBJECTS = $(am_intercept_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+intercept_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(intercept_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
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+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(intercept_la_SOURCES)
+DIST_SOURCES = $(intercept_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+pkgdatadir = @pkgdatadir@
+pkglibdir = ${pkglibexecdir}
+pkglibexecdir = @pkglibexecdir@
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_CFLAGS = @AM_CFLAGS@
+AM_CXXFLAGS = @AM_CXXFLAGS@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+API_DEFS = @API_DEFS@
+AR = @AR@
+ASCPP = @ASCPP@
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+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BOOST_CPPFLAGS = @BOOST_CPPFLAGS@
+BOOST_LDFLAGS = @BOOST_LDFLAGS@
+CC = @CC@
+CCACHE = @CCACHE@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
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+CURSES_LIB = @CURSES_LIB@
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+CXXCPP = @CXXCPP@
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+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
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+DUMPBIN = @DUMPBIN@
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+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+EXPAT_LDFLAGS = @EXPAT_LDFLAGS@
+EXTRA_CC_LDFLAGS = @EXTRA_CC_LDFLAGS@
+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
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+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
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+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
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+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
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+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
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+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
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+am__leading_dot = @am__leading_dot@
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+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
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+build = @build@
+build_alias = @build_alias@
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+build_group = @build_group@
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+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
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+has_backtrace = @has_backtrace@
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+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
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+host_alias = @host_alias@
+host_cpu = @host_cpu@
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+host_vendor = @host_vendor@
+htmldir = @htmldir@
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+install_sh = @install_sh@
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+ip_transparent = @ip_transparent@
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+machine_endianh = @machine_endianh@
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+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
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+prefix = @prefix@
+program_transform_name = @program_transform_name@
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+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
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+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target = intercept.so
+pkglib_LTLIBRARIES = intercept.la
+intercept_la_SOURCES = intercept.cc
+intercept_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/intercept/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/intercept/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+intercept.la: $(intercept_la_OBJECTS) $(intercept_la_DEPENDENCIES) $(EXTRA_intercept_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(intercept_la_LINK) -rpath $(pkglibdir) $(intercept_la_OBJECTS) $(intercept_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/intercept.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
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+mostlyclean-libtool:
+	-rm -f *.lo
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+	-rm -rf .libs _libs
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+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
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+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
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+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
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+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
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+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	fi
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+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "it deletes files that may require special tools to rebuild."
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+	mostlyclean mostlyclean-compile mostlyclean-generic \
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+	ln -sf .libs/$(target)
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+	rm -f $(target)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/intercept/intercept.cc b/lib/atscppapi/examples/intercept/intercept.cc
new file mode 100644
index 00000000..4cac4aea
--- /dev/null
+++ b/lib/atscppapi/examples/intercept/intercept.cc
@@ -0,0 +1,73 @@
+/**
+   Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/InterceptPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+#include <iostream>
+
+using namespace atscppapi;
+using std::string;
+using std::cout;
+using std::endl;
+
+class Intercept : public InterceptPlugin {
+public:
+  Intercept(Transaction &transaction) : InterceptPlugin(transaction, InterceptPlugin::SERVER_INTERCEPT) { }
+  void consume(const string &data, InterceptPlugin::RequestDataType type);
+  void handleInputComplete();
+  ~Intercept() { cout << "Shutting down" << endl; }
+};
+
+class InterceptInstaller : public GlobalPlugin {
+public:
+  InterceptInstaller() : GlobalPlugin(true /* ignore internal transactions */) {
+    GlobalPlugin::registerHook(Plugin::HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+  }
+  void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+    transaction.addPlugin(new Intercept(transaction));
+    cout << "Added intercept" << endl;
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int /* argc ATS_UNUSED */, const char * /* argv ATS_UNUSED */ []) {
+  new InterceptInstaller();
+}
+
+void Intercept::consume(const string &data, InterceptPlugin::RequestDataType type) {
+  if (type == InterceptPlugin::REQUEST_HEADER) {
+    cout << "Read request header data" << endl << data;
+  }
+  else {
+    cout << "Read request body data" << endl << data << endl;
+  }
+}
+
+void Intercept::handleInputComplete() {
+  cout << "Request data complete" << endl;
+  string response("HTTP/1.1 200 OK\r\n"
+                  "Content-Length: 7\r\n"
+                  "\r\n");
+  InterceptPlugin::produce(response);
+//  sleep(5); TODO: this is a test for streaming; currently doesn't work
+  response = "hello\r\n";
+  InterceptPlugin::produce(response);
+  InterceptPlugin::setOutputComplete();
+}
diff --git a/lib/atscppapi/examples/internal_transaction_handling/InternalTransactionHandling.cc b/lib/atscppapi/examples/internal_transaction_handling/InternalTransactionHandling.cc
new file mode 100644
index 00000000..28c77709
--- /dev/null
+++ b/lib/atscppapi/examples/internal_transaction_handling/InternalTransactionHandling.cc
@@ -0,0 +1,65 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/Logger.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/AsyncHttpFetch.h>
+
+using namespace atscppapi;
+using std::string;
+
+#define TAG "internal_transaction_handling"
+
+class AllTransactionsGlobalPlugin : public GlobalPlugin {
+public:
+  AllTransactionsGlobalPlugin() : GlobalPlugin() {
+    TS_DEBUG(TAG, "Registering a global hook HOOK_READ_REQUEST_HEADERS_POST_REMAP");
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    TS_DEBUG(TAG, "Received a request in handleReadRequestHeadersPostRemap.");
+    transaction.resume();
+  }
+};
+
+class NoInternalTransactionsGlobalPlugin : public GlobalPlugin, public AsyncReceiver<AsyncHttpFetch> {
+public:
+  NoInternalTransactionsGlobalPlugin() : GlobalPlugin(true) {
+    TS_DEBUG(TAG, "Registering a global hook HOOK_READ_REQUEST_HEADERS_POST_REMAP");
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    TS_DEBUG(TAG, "Received a request in handleReadRequestHeadersPostRemap.");
+    shared_ptr<Mutex> mutex(new Mutex()); // required for async operation
+    Async::execute<AsyncHttpFetch>(this, new AsyncHttpFetch("http://127.0.0.1/"), mutex); // internal transaction
+    transaction.resume();
+  }
+
+  void handleAsyncComplete(AsyncHttpFetch &provider ATSCPPAPI_UNUSED) {
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  TS_DEBUG(TAG, "Loaded async_http_fetch_example plugin");
+  new AllTransactionsGlobalPlugin();
+  new NoInternalTransactionsGlobalPlugin();
+}
diff --git a/lib/atscppapi/examples/internal_transaction_handling/Makefile.am b/lib/atscppapi/examples/internal_transaction_handling/Makefile.am
new file mode 100644
index 00000000..a521c219
--- /dev/null
+++ b/lib/atscppapi/examples/internal_transaction_handling/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=InternalTransactionHandling.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = InternalTransactionHandling.la
+InternalTransactionHandling_la_SOURCES = InternalTransactionHandling.cc
+InternalTransactionHandling_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/internal_transaction_handling/Makefile.in b/lib/atscppapi/examples/internal_transaction_handling/Makefile.in
new file mode 100644
index 00000000..3b9fd339
--- /dev/null
+++ b/lib/atscppapi/examples/internal_transaction_handling/Makefile.in
@@ -0,0 +1,908 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+
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+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
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+#      http://www.apache.org/licenses/LICENSE-2.0
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+#  distributed under the License is distributed on an "AS IS" BASIS,
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+	}
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+uninstall-pkglibLTLIBRARIES:
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+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+InternalTransactionHandling.la: $(InternalTransactionHandling_la_OBJECTS) $(InternalTransactionHandling_la_DEPENDENCIES) $(EXTRA_InternalTransactionHandling_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(InternalTransactionHandling_la_LINK) -rpath $(pkglibdir) $(InternalTransactionHandling_la_OBJECTS) $(InternalTransactionHandling_la_LIBADD) $(LIBS)
+
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+	      $$unique; \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+distdir: $(DISTFILES)
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
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+			   sort -u` ;; \
+	esac; \
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+	    fi; \
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+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
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+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	      install; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+# Otherwise a system limit (for SysV at least) may be exceeded.
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diff --git a/lib/atscppapi/examples/logger_example/LoggerExample.cc b/lib/atscppapi/examples/logger_example/LoggerExample.cc
new file mode 100644
index 00000000..c6cf32c3
--- /dev/null
+++ b/lib/atscppapi/examples/logger_example/LoggerExample.cc
@@ -0,0 +1,132 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/**
+ * @warning log rolling doesn't work correctly in 3.2.x, see:
+ *   https://issues.apache.org/jira/browse/TS-1813, Apply the patch in
+ *   TS-1813 to correct log rolling in 3.2.x
+ */
+
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/Logger.h>
+#include <atscppapi/PluginInit.h>
+#include <cstring>
+
+using namespace atscppapi;
+using std::string;
+
+namespace {
+Logger log;
+}
+
+/*
+ * You should always take advantage of the LOG_DEBUG, LOG_INFO, and LOG_ERROR
+ * macros available in Logger.h, they are easy to use as you can see below
+ * and will provide detailed information about the logging site such as
+ * filename, function name, and line number of the message
+ */
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    memset(big_buffer_6kb_,'a', sizeof(big_buffer_6kb_));
+    big_buffer_6kb_[sizeof(big_buffer_6kb_) - 1] = '\0';
+
+    memset(big_buffer_14kb_,'a', sizeof(big_buffer_14kb_));
+    big_buffer_14kb_[sizeof(big_buffer_14kb_) - 1] = '\0';
+
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    LOG_DEBUG(log, "handleReadRequestHeadersPostRemap.\n"
+        "\tRequest URL: %s\n"
+        "\tRequest Path: %s\n"
+        "\tRequest Query: %s\n"
+        "\tRequest Method: %s", transaction.getClientRequest().getUrl().getUrlString().c_str(),
+                                transaction.getClientRequest().getUrl().getPath().c_str(),
+                                transaction.getClientRequest().getUrl().getQuery().c_str(),
+                                HTTP_METHOD_STRINGS[transaction.getClientRequest().getMethod()].c_str()
+                               );
+
+    // Next, to demonstrate how you can change logging levels:
+    if (transaction.getClientRequest().getUrl().getPath() == "change_log_level") {
+      if (transaction.getClientRequest().getUrl().getQuery().find("level=debug") != string::npos) {
+        log.setLogLevel(Logger::LOG_LEVEL_DEBUG);
+        LOG_DEBUG(log, "Changed log level to DEBUG");
+      } else if (transaction.getClientRequest().getUrl().getQuery().find("level=info") != string::npos) {
+        log.setLogLevel(Logger::LOG_LEVEL_INFO);
+        LOG_INFO(log, "Changed log level to INFO");
+      } else if (transaction.getClientRequest().getUrl().getQuery().find("level=error") != string::npos) {
+        log.setLogLevel(Logger::LOG_LEVEL_ERROR);
+        LOG_ERROR(log, "Changed log level to ERROR");
+      }
+    }
+
+    // One drawback to usign the Traffic Server Text Loggers is that you're limited in the size of the log
+    // lines, this limit is now set at 8kb for atscppapi, but this limit might be removed in the future.
+    LOG_INFO(log, "This message will be dropped (see error.log) because it's just too big: %s", big_buffer_14kb_);
+
+    // This should work though:
+    LOG_INFO(log, "%s", big_buffer_6kb_);
+
+    transaction.resume();
+  }
+private:
+  char big_buffer_6kb_[6*1024];
+  char big_buffer_14kb_[14*1024];
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  // Create a new logger
+  // This will create a log file with the name logger_example.log (since we left off
+  //    the extension it will automatically add .log)
+  //
+  // The second argument is timestamp, which will force a timestamp on every log message
+  //  this is enabled by default.
+  // The third argument is renaming enabled, which means if a log already exists with that
+  //  name it will try logger_example.1 and so on, this is enabled by default.
+  // The fourth argument is the initial logging level this can always be changed with log.setLogLevel().
+  //  the default log level is LOG_LEVEL_INFO.
+  // The fifth argument is to enable log rolling, this is enabled by default.
+  // The sixth argument is the freuqency in which we will roll the logs, 300 seconds is very low,
+  //  the default for this argument is 3600.
+  log.init("logger_example", true, true, Logger::LOG_LEVEL_DEBUG, true, 300);
+
+  // Now that we've initialized a logger we can do all kinds of fun things on it:
+  log.setRollingEnabled(true); // already done via log.init, just an example.
+  log.setRollingIntervalSeconds(300); // already done via log.init
+
+  // You have two ways to log to a logger, you can log directly on the object itself:
+  log.logInfo("Hello World from: %s", argv[0]);
+
+  // Alternatively you can take advantage of the super helper macros for logging
+  // that will include the file, function, and line number automatically as part
+  // of the log message:
+  LOG_INFO(log, "Hello World with more info from: %s", argv[0]);
+
+  // This will hurt performance, but it's an option that's always available to you
+  // to force flush the logs. Otherwise TrafficServer will flush the logs around
+  // once every second. You should really avoid flushing the log unless it's really necessary.
+  log.flush();
+
+  new GlobalHookPlugin();
+}
+
diff --git a/lib/atscppapi/examples/logger_example/Makefile.am b/lib/atscppapi/examples/logger_example/Makefile.am
new file mode 100644
index 00000000..892b57fc
--- /dev/null
+++ b/lib/atscppapi/examples/logger_example/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=LoggerExample.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = LoggerExample.la
+LoggerExample_la_SOURCES = LoggerExample.cc
+LoggerExample_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/logger_example/Makefile.in b/lib/atscppapi/examples/logger_example/Makefile.in
new file mode 100644
index 00000000..0ab8c0eb
--- /dev/null
+++ b/lib/atscppapi/examples/logger_example/Makefile.in
@@ -0,0 +1,906 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
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+  if $(am__is_gnu_make); then \
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+  strip_trailopt () \
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+am__v_lt_0 = --silent
+am__v_lt_1 = 
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+	--tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link \
+	$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) \
+	$(MultipleTransactionHookPlugins_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
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+am__v_GEN_0 = @echo "  GEN     " $@;
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+am__depfiles_maybe = depfiles
+am__mv = mv -f
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+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(MultipleTransactionHookPlugins_la_SOURCES)
+DIST_SOURCES = $(MultipleTransactionHookPlugins_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
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+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
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+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
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+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
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+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
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+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
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+PATH_SEPARATOR = @PATH_SEPARATOR@
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+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
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+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
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+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
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+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
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+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
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+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
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+top_builddir = @top_builddir@
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+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
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+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+target = MultipleTransactionHookPlugins.so
+pkglib_LTLIBRARIES = MultipleTransactionHookPlugins.la
+MultipleTransactionHookPlugins_la_SOURCES = MultipleTransactionHookPlugins.cc
+MultipleTransactionHookPlugins_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/multiple_transaction_hooks/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/examples/multiple_transaction_hooks/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+MultipleTransactionHookPlugins.la: $(MultipleTransactionHookPlugins_la_OBJECTS) $(MultipleTransactionHookPlugins_la_DEPENDENCIES) $(EXTRA_MultipleTransactionHookPlugins_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(MultipleTransactionHookPlugins_la_LINK) -rpath $(pkglibdir) $(MultipleTransactionHookPlugins_la_OBJECTS) $(MultipleTransactionHookPlugins_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
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diff --git a/lib/atscppapi/examples/multiple_transaction_hooks/MultipleTransactionHookPlugins.cc b/lib/atscppapi/examples/multiple_transaction_hooks/MultipleTransactionHookPlugins.cc
new file mode 100644
index 00000000..ca1dbe78
--- /dev/null
+++ b/lib/atscppapi/examples/multiple_transaction_hooks/MultipleTransactionHookPlugins.cc
@@ -0,0 +1,100 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <iostream>
+#include <vector>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+
+class MultipleTransactionHookPluginsOne : public atscppapi::TransactionPlugin {
+public:
+  MultipleTransactionHookPluginsOne(Transaction &transaction) : TransactionPlugin(transaction) {
+    TransactionPlugin::registerHook(HOOK_SEND_RESPONSE_HEADERS);
+    std::cout << "Constructed MultipleTransactionHookPluginsOne!" << std::endl;
+  }
+
+  virtual ~MultipleTransactionHookPluginsOne() {
+    std::cout << "Destroyed MultipleTransactionHookPluginsOne!" << std::endl;
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    std::cerr << "MultipleTransactionHookPluginsOne -- Send response headers!" << std::endl;
+    transaction.resume();
+  }
+};
+
+class MultipleTransactionHookPluginsTwo : public atscppapi::TransactionPlugin {
+public:
+  MultipleTransactionHookPluginsTwo(Transaction &transaction) : TransactionPlugin(transaction) {
+    TransactionPlugin::registerHook(HOOK_SEND_REQUEST_HEADERS);
+    TransactionPlugin::registerHook(HOOK_SEND_RESPONSE_HEADERS);
+    std::cout << "Constructed MultipleTransactionHookPluginsTwo!" << std::endl;
+  }
+
+  virtual ~MultipleTransactionHookPluginsTwo() {
+    std::cout << "Destroyed MultipleTransactionHookPluginsTwo!" << std::endl;
+  }
+
+  void handleSendRequestHeaders(Transaction &transaction) {
+    std::cout << "MultipleTransactionHookPluginsTwo -- Send request headers!" << std::endl;
+    some_container_.push_back("We have transaction scoped storage in Transaction Hooks!");
+    transaction.resume();
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+     std::cout << "MultipleTransactionHookPluginsTwo -- Send response headers!" << std::endl;
+
+     // Demonstrate the concept of transaction scoped storage.
+     if(some_container_.size()) {
+       std::cout << some_container_.back() << std::endl;
+     }
+
+     transaction.resume();
+   }
+
+private:
+  std::vector<std::string> some_container_;
+};
+
+class GlobalHookPlugin : public atscppapi::GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    GlobalPlugin::registerHook(HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+    std::cout << "Hello from handleReadRequesHeadersPreRemap!" << std::endl;
+
+    // We need not store the addresses of the transaction plugins
+    // because they will be cleaned up automatically when the transaction
+    // closes.
+
+    transaction.addPlugin(new MultipleTransactionHookPluginsOne(transaction));
+    transaction.addPlugin(new MultipleTransactionHookPluginsTwo(transaction));
+
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new GlobalHookPlugin();
+}
diff --git a/lib/atscppapi/examples/null_transformation_plugin/Makefile.am b/lib/atscppapi/examples/null_transformation_plugin/Makefile.am
new file mode 100644
index 00000000..7c196da4
--- /dev/null
+++ b/lib/atscppapi/examples/null_transformation_plugin/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=NullTransformationPlugin.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = NullTransformationPlugin.la
+NullTransformationPlugin_la_SOURCES = NullTransformationPlugin.cc
+NullTransformationPlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/null_transformation_plugin/Makefile.in b/lib/atscppapi/examples/null_transformation_plugin/Makefile.in
new file mode 100644
index 00000000..4d43fd67
--- /dev/null
+++ b/lib/atscppapi/examples/null_transformation_plugin/Makefile.in
@@ -0,0 +1,907 @@
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diff --git a/lib/atscppapi/examples/null_transformation_plugin/NullTransformationPlugin.cc b/lib/atscppapi/examples/null_transformation_plugin/NullTransformationPlugin.cc
new file mode 100644
index 00000000..5312d3ba
--- /dev/null
+++ b/lib/atscppapi/examples/null_transformation_plugin/NullTransformationPlugin.cc
@@ -0,0 +1,87 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/TransformationPlugin.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/Logger.h>
+
+using namespace atscppapi;
+using std::string;
+
+namespace {
+#define TAG "null_transformation"
+}
+
+class NullTransformationPlugin : public TransformationPlugin {
+public:
+  NullTransformationPlugin(Transaction &transaction, TransformationPlugin::Type xformType)
+    : TransformationPlugin(transaction, xformType) {
+    registerHook((xformType == TransformationPlugin::REQUEST_TRANSFORMATION) ? 
+                 HOOK_SEND_REQUEST_HEADERS : HOOK_SEND_RESPONSE_HEADERS);
+  }
+
+  void handleSendRequestHeaders(Transaction &transaction) {
+    transaction.getServerRequest().getHeaders()["X-Content-Transformed"] = "1";
+    transaction.resume();
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    transaction.getClientResponse().getHeaders()["X-Content-Transformed"] = "1";
+    transaction.resume();
+  }
+
+  void consume(const string &data) {
+    produce(data);
+  }
+
+  void handleInputComplete() {
+    setOutputComplete();
+  }
+
+  virtual ~NullTransformationPlugin() {
+
+  }
+
+private:
+};
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+    registerHook(HOOK_READ_RESPONSE_HEADERS);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    transaction.addPlugin(new NullTransformationPlugin(transaction, TransformationPlugin::REQUEST_TRANSFORMATION));
+    transaction.resume();
+  }
+
+  virtual void handleReadResponseHeaders(Transaction &transaction) {
+    transaction.addPlugin(new NullTransformationPlugin(transaction, TransformationPlugin::RESPONSE_TRANSFORMATION));
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  TS_DEBUG(TAG, "TSPluginInit");
+  new GlobalHookPlugin();
+}
diff --git a/lib/atscppapi/examples/post_buffer/Makefile.am b/lib/atscppapi/examples/post_buffer/Makefile.am
new file mode 100644
index 00000000..6829ad3c
--- /dev/null
+++ b/lib/atscppapi/examples/post_buffer/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=PostBuffer.so
+pkglibdir = ${pkglibexecdir}
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+PostBuffer_la_SOURCES = PostBuffer.cc
+PostBuffer_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/post_buffer/Makefile.in b/lib/atscppapi/examples/post_buffer/Makefile.in
new file mode 100644
index 00000000..98afaee8
--- /dev/null
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+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
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+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/examples/post_buffer/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
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+	@case '$?' in \
+	  *config.status*) \
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+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+PostBuffer.la: $(PostBuffer_la_OBJECTS) $(PostBuffer_la_DEPENDENCIES) $(EXTRA_PostBuffer_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(PostBuffer_la_LINK) -rpath $(pkglibdir) $(PostBuffer_la_OBJECTS) $(PostBuffer_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/PostBuffer.Plo@am__quote@
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+.cc.o:
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+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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diff --git a/lib/atscppapi/examples/post_buffer/PostBuffer.cc b/lib/atscppapi/examples/post_buffer/PostBuffer.cc
new file mode 100644
index 00000000..a3607885
--- /dev/null
+++ b/lib/atscppapi/examples/post_buffer/PostBuffer.cc
@@ -0,0 +1,75 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/TransformationPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+using std::cerr;
+using std::endl;
+using std::string;
+
+class PostBufferTransformationPlugin : public TransformationPlugin {
+public:
+  PostBufferTransformationPlugin(Transaction &transaction)
+    : TransformationPlugin(transaction, REQUEST_TRANSFORMATION), transaction_(transaction) {
+    buffer_.reserve(1024); // not required, this is an optimization to start the buffer at a slightly higher value.
+    (void)transaction_;
+  }
+
+  void consume(const string &data) {
+    buffer_.append(data);
+  }
+
+  void handleInputComplete() {
+    produce(buffer_);
+    setOutputComplete();
+  }
+
+  virtual ~PostBufferTransformationPlugin() { }
+
+private:
+  Transaction &transaction_;
+  string buffer_;
+};
+
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    cerr << "Read Request Headers Post Remap" << endl;
+    cerr << "Path: " << transaction.getClientRequest().getUrl().getPath() << endl;
+    cerr << "Method: " << HTTP_METHOD_STRINGS[transaction.getClientRequest().getMethod()] << endl;
+    if (transaction.getClientRequest().getMethod() == HTTP_METHOD_POST) {
+      transaction.addPlugin(new PostBufferTransformationPlugin(transaction));
+    }
+
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new GlobalHookPlugin();
+}
diff --git a/lib/atscppapi/examples/remap_plugin/Makefile.am b/lib/atscppapi/examples/remap_plugin/Makefile.am
new file mode 100644
index 00000000..ec166a4a
--- /dev/null
+++ b/lib/atscppapi/examples/remap_plugin/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=RemapPlugin.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = RemapPlugin.la
+RemapPlugin_la_SOURCES = RemapPlugin.cc
+RemapPlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/remap_plugin/Makefile.in b/lib/atscppapi/examples/remap_plugin/Makefile.in
new file mode 100644
index 00000000..f60c0ab5
--- /dev/null
+++ b/lib/atscppapi/examples/remap_plugin/Makefile.in
@@ -0,0 +1,906 @@
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
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+am__installdirs = "$(DESTDIR)$(pkglibdir)"
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+am_RemapPlugin_la_OBJECTS = RemapPlugin.lo
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+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(RemapPlugin_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
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+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	$(am__define_uniq_tagged_files); \
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+	  if test $$# -gt 0; then \
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+	      $$unique; \
+	  fi; \
+	fi
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+	     $$unique
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+	  && $(am__cd) $(top_srcdir) \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
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+distdir: $(DISTFILES)
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+	list='$(DISTFILES)'; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+all-am: Makefile $(LTLIBRARIES)
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
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+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
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+	rm -f $(target)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/remap_plugin/RemapPlugin.cc b/lib/atscppapi/examples/remap_plugin/RemapPlugin.cc
new file mode 100644
index 00000000..9f152093
--- /dev/null
+++ b/lib/atscppapi/examples/remap_plugin/RemapPlugin.cc
@@ -0,0 +1,87 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <atscppapi/RemapPlugin.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/Logger.h>
+#include <vector>
+#include <map>
+#include <sstream>
+
+using namespace std;
+using namespace atscppapi;
+
+#define LOG_TAG "remapplugin"
+
+class MyRemapPlugin : public RemapPlugin {
+public:
+  MyRemapPlugin(void **instance_handle) : RemapPlugin(instance_handle) { }
+
+  Result doRemap(const Url &map_from_url, const Url &map_to_url, Transaction &transaction, bool &redirect) {
+    Url &request_url = transaction.getClientRequest().getUrl();
+    TS_DEBUG(LOG_TAG, "from URL is [%s], to URL is [%s], request URL is [%s]", map_from_url.getUrlString().c_str(),
+             map_to_url.getUrlString().c_str(), request_url.getUrlString().c_str());
+    const string &query = request_url.getQuery();
+    string query_param_raw;
+    map<string, string> query_params;
+    std::istringstream iss(query);
+    while (std::getline(iss, query_param_raw, '&')) {
+      size_t equals_pos = query_param_raw.find('=');
+      if (equals_pos && (equals_pos < (query_param_raw.size() - 1))) {
+        query_params[string(query_param_raw, 0, equals_pos)] = 
+          string(query_param_raw, equals_pos + 1, query_param_raw.size() - equals_pos - 1);
+      }
+    }
+    if (query_params.count("error")) {
+      return RESULT_ERROR;
+    }
+    const string &remap = query_params["remap"];
+    bool stop = (query_params["stop"] == "true");
+    Result result = stop ? RESULT_NO_REMAP_STOP : RESULT_NO_REMAP;
+    if (remap == "true") {
+      const string &path = query_params["path"];
+      if (path.size()) {
+        request_url.setPath(path);
+      }
+      const string &host = query_params["host"];
+      if (host.size()) {
+        request_url.setHost(host);
+      }
+      const string &port_str = query_params["port"];
+      if (port_str.size()) {
+        uint16_t port;
+        iss.str(port_str);
+        iss >> port;
+        request_url.setPort(port);
+      }
+      if (query_params.count("redirect")) {
+        redirect = true;
+      }
+      result = stop ? RESULT_DID_REMAP_STOP : RESULT_DID_REMAP;
+    }
+    request_url.setQuery("");
+    TS_DEBUG(LOG_TAG, "Request URL is now [%s]", request_url.getUrlString().c_str());
+    return result;
+  }
+};
+
+TsReturnCode TSRemapNewInstance(int argc ATSCPPAPI_UNUSED, char *argv[] ATSCPPAPI_UNUSED, void **instance_handle, char *errbuf ATSCPPAPI_UNUSED, int errbuf_size ATSCPPAPI_UNUSED) {
+  new MyRemapPlugin(instance_handle);
+  return TS_SUCCESS;
+}
diff --git a/lib/atscppapi/examples/serverresponse/Makefile.am b/lib/atscppapi/examples/serverresponse/Makefile.am
new file mode 100644
index 00000000..56cab1e1
--- /dev/null
+++ b/lib/atscppapi/examples/serverresponse/Makefile.am
@@ -0,0 +1,29 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=ServerResponse.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = ServerResponse.la
+ServerResponse_la_SOURCES = ServerResponse.cc
+ServerResponse_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/serverresponse/Makefile.in b/lib/atscppapi/examples/serverresponse/Makefile.in
new file mode 100644
index 00000000..a74292d6
--- /dev/null
+++ b/lib/atscppapi/examples/serverresponse/Makefile.in
@@ -0,0 +1,906 @@
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+# @configure_input@
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+
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+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
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+  for p in $$list; do echo "$$p $$p"; done | \
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+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
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+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+ServerResponse_la_LIBADD =
+am_ServerResponse_la_OBJECTS = ServerResponse.lo
+ServerResponse_la_OBJECTS = $(am_ServerResponse_la_OBJECTS)
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+ServerResponse_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(ServerResponse_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
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+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
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+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
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+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
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+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
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+	      exit 1;; \
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+	$(am__cd) $(top_srcdir) && \
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+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
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+	list2=; for p in $$list; do \
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+	    list2="$$list2 $$p"; \
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+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
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+uninstall-pkglibLTLIBRARIES:
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+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
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+	@list='$(pkglib_LTLIBRARIES)'; \
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+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
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+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
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+	$(AM_V_CXXLD)$(ServerResponse_la_LINK) -rpath $(pkglibdir) $(ServerResponse_la_OBJECTS) $(ServerResponse_la_LIBADD) $(LIBS)
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+mostlyclean-compile:
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+distclean-compile:
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diff --git a/lib/atscppapi/examples/serverresponse/ServerResponse.cc b/lib/atscppapi/examples/serverresponse/ServerResponse.cc
new file mode 100644
index 00000000..01fb9954
--- /dev/null
+++ b/lib/atscppapi/examples/serverresponse/ServerResponse.cc
@@ -0,0 +1,110 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/PluginInit.h>
+#include <atscppapi/utils.h>
+
+using namespace atscppapi;
+
+using std::cout;
+using std::endl;
+using std::list;
+using std::string;
+
+class ServerResponsePlugin : public GlobalPlugin {
+public:
+  ServerResponsePlugin() {
+    registerHook(HOOK_SEND_REQUEST_HEADERS);
+    registerHook(HOOK_READ_RESPONSE_HEADERS);
+    registerHook(HOOK_SEND_RESPONSE_HEADERS);
+  }
+
+  void handleSendRequestHeaders(Transaction &transaction) {
+    // Here we can decide to abort the request to the origin (we can do this earlier too)
+    // and just send the user an error page.
+    if(transaction.getClientRequest().getUrl().getQuery().find("error=1") != string::npos) {
+      // Give this user an error page and don't make a request to an origin.
+      cout << "Sending this request an error page" << endl;
+      transaction.error("This is the error response, but the response code is 500."
+                        "In this example no request was made to the orgin.");
+      // HTTP/1.1 500 INKApi Error
+    } else {
+      transaction.resume();
+    }
+    cout << "Server request headers are" << endl;
+    cout << transaction.getServerRequest().getHeaders() << endl;
+  }
+
+  void handleReadResponseHeaders(Transaction &transaction) {
+    cout << "Hello from handleReadResponseHeaders!" << endl;
+    cout << "Server response headers are" << endl;
+    Response &server_response = transaction.getServerResponse();
+    cout << "Reason phrase is " << server_response.getReasonPhrase() << endl;
+    cout << transaction.getServerRequest().getHeaders() << endl;
+    transaction.resume();
+  }
+
+  void handleSendResponseHeaders(Transaction &transaction) {
+    cout << "Hello from handleSendResponseHeaders!" << endl;
+    cout << "Client response headers are" << endl;
+    transaction.getClientResponse().getHeaders()["X-Foo-Header"] = "1";
+
+    printHeadersManual(transaction.getClientResponse().getHeaders());
+
+    //
+    // If the url contains a query parameter redirect=1 we will send the
+    // user to to somewhere else. Obviously this is a silly example
+    // since we should technically detect this long before the origin
+    // request and prevent the origin request in the first place.
+    //
+
+    if(transaction.getClientRequest().getUrl().getQuery().find("redirect=1") != string::npos) {
+      cout << "Sending this guy to google." << endl;
+      transaction.getClientResponse().getHeaders().append("Location", "http://www.google.com");
+      transaction.getClientResponse().setStatusCode(HTTP_STATUS_MOVED_TEMPORARILY);
+      transaction.getClientResponse().setReasonPhrase("Come Back Later");
+      // HTTP/1.1 302 Come Back Later
+    }
+
+    transaction.resume();
+  }
+
+private:
+  void printHeadersManual(Headers &headers) {
+
+    for (Headers::iterator header_iter = headers.begin(), header_end = headers.end();
+         header_iter != header_end; ++header_iter) {
+
+      cout << "Header " << (*header_iter).name() <<  ": " << endl;
+
+      for (HeaderField::iterator value_iter = (*header_iter).begin(), values_end = (*header_iter).end();
+          value_iter != values_end; ++value_iter) {
+        cout << "\t" << *value_iter << endl;
+      }
+
+    }
+
+    cout << endl;
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new ServerResponsePlugin();
+}
diff --git a/lib/atscppapi/examples/stat_example/Makefile.am b/lib/atscppapi/examples/stat_example/Makefile.am
new file mode 100644
index 00000000..6e95a5ea
--- /dev/null
+++ b/lib/atscppapi/examples/stat_example/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=StatExample.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = StatExample.la
+StatExample_la_SOURCES = StatExample.cc
+StatExample_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/stat_example/Makefile.in b/lib/atscppapi/examples/stat_example/Makefile.in
new file mode 100644
index 00000000..fa256cf9
--- /dev/null
+++ b/lib/atscppapi/examples/stat_example/Makefile.in
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+#  to you under the Apache License, Version 2.0 (the
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+am__installdirs = "$(DESTDIR)$(pkglibdir)"
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+# Otherwise a system limit (for SysV at least) may be exceeded.
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diff --git a/lib/atscppapi/examples/stat_example/StatExample.cc b/lib/atscppapi/examples/stat_example/StatExample.cc
new file mode 100644
index 00000000..72085261
--- /dev/null
+++ b/lib/atscppapi/examples/stat_example/StatExample.cc
@@ -0,0 +1,71 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/Logger.h>
+#include <atscppapi/Stat.h>
+#include <atscppapi/PluginInit.h>
+#include <cstring>
+
+using namespace atscppapi;
+using std::string;
+
+namespace {
+// This is for the -T tag debugging
+// To view the debug messages ./traffic_server -T "stat_example.*"
+#define TAG "stat_example"
+
+// This will be the actual stat name
+// You can view it using traffic_line -r stat_example
+const string STAT_NAME = "stat_example";
+
+// This is the stat we'll be using, you can view it's value
+// using traffic_line -r stat_example
+Stat stat;
+}
+
+/*
+ * This is a simple plugin that will increment a counter
+ * everytime a request comes in.
+ */
+class GlobalHookPlugin : public GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    TS_DEBUG(TAG, "Registering a global hook HOOK_READ_REQUEST_HEADERS_POST_REMAP");
+    registerHook(HOOK_READ_REQUEST_HEADERS_POST_REMAP);
+  }
+
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) {
+    TS_DEBUG(TAG, "Received a request, incrementing the counter.");
+    stat.increment();
+    TS_DEBUG(TAG, "Stat '%s' value = %lld", STAT_NAME.c_str(), static_cast<long long>(stat.get()));
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  TS_DEBUG(TAG, "Loaded stat_example plugin");
+
+  // Since this stat is not persistent it will be initialized to 0.
+  stat.init(STAT_NAME, Stat::SYNC_COUNT, true);
+  stat.set(0);
+
+  new GlobalHookPlugin();
+}
+
diff --git a/lib/atscppapi/examples/timeout_example/Makefile.am b/lib/atscppapi/examples/timeout_example/Makefile.am
new file mode 100644
index 00000000..2c8ae053
--- /dev/null
+++ b/lib/atscppapi/examples/timeout_example/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=TimeoutExamplePlugin.so
+pkglibdir = ${pkglibexecdir}
+pkglib_LTLIBRARIES = TimeoutExamplePlugin.la
+TimeoutExamplePlugin_la_SOURCES = TimeoutExamplePlugin.cc
+TimeoutExamplePlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/timeout_example/Makefile.in b/lib/atscppapi/examples/timeout_example/Makefile.in
new file mode 100644
index 00000000..eb05d6b2
--- /dev/null
+++ b/lib/atscppapi/examples/timeout_example/Makefile.in
@@ -0,0 +1,907 @@
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
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+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
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+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+TimeoutExamplePlugin_la_LIBADD =
+am_TimeoutExamplePlugin_la_OBJECTS = TimeoutExamplePlugin.lo
+TimeoutExamplePlugin_la_OBJECTS =  \
+	$(am_TimeoutExamplePlugin_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+TimeoutExamplePlugin_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(TimeoutExamplePlugin_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
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+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
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+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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diff --git a/lib/atscppapi/examples/timeout_example/TimeoutExamplePlugin.cc b/lib/atscppapi/examples/timeout_example/TimeoutExamplePlugin.cc
new file mode 100644
index 00000000..b50bf5a0
--- /dev/null
+++ b/lib/atscppapi/examples/timeout_example/TimeoutExamplePlugin.cc
@@ -0,0 +1,54 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/Logger.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+
+#define TAG "timeout_example_plugin"
+
+class TimeoutExamplePlugin : public GlobalPlugin {
+public:
+  TimeoutExamplePlugin() {
+    registerHook(HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+    registerHook(HOOK_SEND_RESPONSE_HEADERS);
+  }
+
+  virtual void handleSendResponseHeaders(Transaction &transaction) {
+    TS_DEBUG(TAG, "Sending response headers to the client, status=%d", transaction.getClientResponse().getStatusCode());
+    transaction.resume();
+  }
+
+  virtual void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+    TS_DEBUG(TAG, "Setting all timeouts to 1ms, this will likely cause the transaction to receive a 504.");
+    transaction.setTimeout(Transaction::TIMEOUT_CONNECT, 1);
+    transaction.setTimeout(Transaction::TIMEOUT_ACTIVE, 1);
+    transaction.setTimeout(Transaction::TIMEOUT_DNS, 1);
+    transaction.setTimeout(Transaction::TIMEOUT_NO_ACTIVITY, 1);
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  TS_DEBUG(TAG, "TSPluginInit");
+  new TimeoutExamplePlugin();
+}
diff --git a/lib/atscppapi/examples/transactionhook/Makefile.am b/lib/atscppapi/examples/transactionhook/Makefile.am
new file mode 100644
index 00000000..08f24062
--- /dev/null
+++ b/lib/atscppapi/examples/transactionhook/Makefile.am
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib/atscppapi/src/include -Wno-unused-variable
+
+target=TransactionHookPlugin.so
+pkglibdir = ${pkglibexecdir}
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+TransactionHookPlugin_la_SOURCES = TransactionHookPlugin.cc
+TransactionHookPlugin_la_LDFLAGS = -module -avoid-version -shared -L$(top_srcdir)/lib/atscppapi/src/ -latscppapi
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
diff --git a/lib/atscppapi/examples/transactionhook/Makefile.in b/lib/atscppapi/examples/transactionhook/Makefile.in
new file mode 100644
index 00000000..29198487
--- /dev/null
+++ b/lib/atscppapi/examples/transactionhook/Makefile.in
@@ -0,0 +1,907 @@
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+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-local \
+	clean-pkglibLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-local clean-pkglibLTLIBRARIES \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-pkglibLTLIBRARIES install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-pkglibLTLIBRARIES
+
+
+all:
+	ln -sf .libs/$(target)
+
+clean-local:
+	rm -f $(target)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/examples/transactionhook/TransactionHookPlugin.cc b/lib/atscppapi/examples/transactionhook/TransactionHookPlugin.cc
new file mode 100644
index 00000000..41d6effc
--- /dev/null
+++ b/lib/atscppapi/examples/transactionhook/TransactionHookPlugin.cc
@@ -0,0 +1,60 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <iostream>
+#include <atscppapi/GlobalPlugin.h>
+#include <atscppapi/TransactionPlugin.h>
+#include <atscppapi/PluginInit.h>
+
+using namespace atscppapi;
+
+class TransactionHookPlugin : public atscppapi::TransactionPlugin {
+public:
+  TransactionHookPlugin(Transaction &transaction) : TransactionPlugin(transaction) {
+    char_ptr_ = new char[100];
+    TransactionPlugin::registerHook(HOOK_SEND_RESPONSE_HEADERS);
+    std::cout << "Constructed!" << std::endl;
+  }
+  virtual ~TransactionHookPlugin() {
+    delete[] char_ptr_; // cleanup
+    std::cout << "Destroyed!" << std::endl;
+  }
+  void handleSendResponseHeaders(Transaction &transaction) {
+    std::cout << "Send response headers!" << std::endl;
+    transaction.resume();
+  }
+private:
+  char *char_ptr_;
+};
+
+class GlobalHookPlugin : public atscppapi::GlobalPlugin {
+public:
+  GlobalHookPlugin() {
+    GlobalPlugin::registerHook(HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+  }
+  virtual void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+    std::cout << "Hello from handleReadRequesHeadersPreRemap!" << std::endl;
+    transaction.addPlugin(new TransactionHookPlugin(transaction));
+    transaction.resume();
+  }
+};
+
+void TSPluginInit(int argc ATSCPPAPI_UNUSED, const char *argv[] ATSCPPAPI_UNUSED) {
+  new GlobalHookPlugin();
+}
diff --git a/lib/atscppapi/src/AsyncHttpFetch.cc b/lib/atscppapi/src/AsyncHttpFetch.cc
new file mode 100644
index 00000000..ff374a98
--- /dev/null
+++ b/lib/atscppapi/src/AsyncHttpFetch.cc
@@ -0,0 +1,186 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file AsyncHttpFetch.cc
+ */
+
+#include "atscppapi/AsyncHttpFetch.h"
+#include <ts/ts.h>
+#include <arpa/inet.h>
+#include "logging_internal.h"
+#include "utils_internal.h"
+
+#include <cstdio>
+
+using namespace atscppapi;
+using std::string;
+
+/**
+ * @private
+ */
+struct atscppapi::AsyncHttpFetchState : noncopyable {
+  Request request_;
+  Response response_;
+  string request_body_;
+  AsyncHttpFetch::Result result_;
+  const void *body_;
+  size_t body_size_;
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  shared_ptr<AsyncDispatchControllerBase> dispatch_controller_;
+
+  AsyncHttpFetchState(const string &url_str, HttpMethod http_method, string request_body)
+    : request_(url_str, http_method, HTTP_VERSION_1_0), request_body_(request_body),
+      result_(AsyncHttpFetch::RESULT_FAILURE), body_(NULL), body_size_(0), hdr_buf_(NULL), hdr_loc_(NULL) { }
+  
+  ~AsyncHttpFetchState() {
+    if (hdr_loc_) {
+      TSMLoc null_parent_loc = NULL;
+      TSHandleMLocRelease(hdr_buf_, null_parent_loc, hdr_loc_);
+    }
+    if (hdr_buf_) {
+      TSMBufferDestroy(hdr_buf_);
+    }
+  }
+};
+
+namespace {
+
+const unsigned int LOCAL_IP_ADDRESS = 0x0100007f;
+const int LOCAL_PORT = 8080;
+
+static int handleFetchEvents(TSCont cont, TSEvent event, void *edata) {
+  LOG_DEBUG("Fetch result returned event = %d, edata = %p", event, edata);
+  AsyncHttpFetch *fetch_provider = static_cast<AsyncHttpFetch *>(TSContDataGet(cont));
+  AsyncHttpFetchState *state = utils::internal::getAsyncHttpFetchState(*fetch_provider);
+  
+  if (event == static_cast<int>(AsyncHttpFetch::RESULT_SUCCESS)) {
+    TSHttpTxn txn = static_cast<TSHttpTxn>(edata);
+    int data_len;
+    const char *data_start = TSFetchRespGet(txn, &data_len);
+    const char *data_end = data_start + data_len;
+    
+    TSHttpParser parser = TSHttpParserCreate();
+    state->hdr_buf_ = TSMBufferCreate();
+    state->hdr_loc_ = TSHttpHdrCreate(state->hdr_buf_);
+    TSHttpHdrTypeSet(state->hdr_buf_, state->hdr_loc_, TS_HTTP_TYPE_RESPONSE);
+    if (TSHttpHdrParseResp(parser, state->hdr_buf_, state->hdr_loc_, &data_start, data_end) == TS_PARSE_DONE) {
+      TSHttpStatus status = TSHttpHdrStatusGet(state->hdr_buf_, state->hdr_loc_);
+      state->body_ = data_start; // data_start will now be pointing to body
+      state->body_size_ = data_end - data_start;
+      utils::internal::initResponse(state->response_, state->hdr_buf_, state->hdr_loc_);
+      LOG_DEBUG("Fetch result had a status code of %d with a body length of %ld", status, state->body_size_);
+    } else {
+      LOG_ERROR("Unable to parse response; Request URL [%s]; transaction %p",
+                state->request_.getUrl().getUrlString().c_str(), txn);
+      event = static_cast<TSEvent>(AsyncHttpFetch::RESULT_FAILURE);
+    }
+    TSHttpParserDestroy(parser);
+  }
+  state->result_ = static_cast<AsyncHttpFetch::Result>(event);
+  if (!state->dispatch_controller_->dispatch()) {
+    LOG_DEBUG("Unable to dispatch result from AsyncFetch because promise has died.");
+  }
+
+  utils::internal::deleteAsyncHttpFetch(fetch_provider); // we must always cleans up when we're done.
+  TSContDestroy(cont);
+  return 0;
+}
+
+}
+
+AsyncHttpFetch::AsyncHttpFetch(const string &url_str, const string &request_body) {
+  init(url_str, HTTP_METHOD_POST, request_body);
+}
+
+AsyncHttpFetch::AsyncHttpFetch(const string &url_str, HttpMethod http_method) {
+  init(url_str, http_method, "");
+}
+
+void AsyncHttpFetch::init(const string &url_str, HttpMethod http_method, const string &request_body) {
+  LOG_DEBUG("Created new AsyncHttpFetch object %p", this);
+  state_ = new AsyncHttpFetchState(url_str, http_method, request_body);
+}
+
+void AsyncHttpFetch::run() {
+  state_->dispatch_controller_ = getDispatchController(); // keep a copy in state so that cont handler can use it
+
+  TSCont fetchCont = TSContCreate(handleFetchEvents, TSMutexCreate());
+  TSContDataSet(fetchCont, static_cast<void *>(this)); // Providers have to clean themselves up when they are done.
+
+  TSFetchEvent event_ids;
+  event_ids.success_event_id = RESULT_SUCCESS;
+  event_ids.failure_event_id = RESULT_FAILURE;
+  event_ids.timeout_event_id = RESULT_TIMEOUT;
+
+  struct sockaddr_in addr;
+  addr.sin_family = AF_INET;
+  addr.sin_addr.s_addr = LOCAL_IP_ADDRESS;
+  addr.sin_port = LOCAL_PORT;
+
+  string request_str(HTTP_METHOD_STRINGS[state_->request_.getMethod()]);
+  request_str += ' ';
+  request_str += state_->request_.getUrl().getUrlString();
+  request_str += ' ';
+  request_str += HTTP_VERSION_STRINGS[state_->request_.getVersion()];
+  request_str += "\r\n";
+  Headers &headers = state_->request_.getHeaders();
+  if (headers.size()) {
+    // remove the possibility of keep-alive
+    headers.erase("Connection");
+    headers.erase("Proxy-Connection");
+  }
+  if (!state_->request_body_.empty()) {
+    char size_buf[128];
+    snprintf(size_buf, sizeof(size_buf), "%zu", state_->request_body_.size());
+    state_->request_.getHeaders().set("Content-Length", size_buf);
+  }
+  request_str += headers.wireStr();
+  request_str += "\r\n";
+  request_str += state_->request_body_;
+
+  LOG_DEBUG("Issing TSFetchUrl with request\n[%s]", request_str.c_str());
+  TSFetchUrl(request_str.c_str(), request_str.size(), reinterpret_cast<struct sockaddr const *>(&addr), fetchCont,
+             AFTER_BODY, event_ids);
+}
+
+Headers &AsyncHttpFetch::getRequestHeaders() {
+  return state_->request_.getHeaders();
+}
+
+AsyncHttpFetch::Result AsyncHttpFetch::getResult() const {
+  return state_->result_;
+}
+
+const Url &AsyncHttpFetch::getRequestUrl() const {
+  return state_->request_.getUrl();
+}
+
+const Response &AsyncHttpFetch::getResponse() const {
+  return state_->response_;
+}
+
+void AsyncHttpFetch::getResponseBody(const void *&body, size_t &body_size) const {
+  body = state_->body_;
+  body_size = state_->body_size_;
+}
+
+AsyncHttpFetch::~AsyncHttpFetch() {
+  delete state_;
+}
diff --git a/lib/atscppapi/src/AsyncTimer.cc b/lib/atscppapi/src/AsyncTimer.cc
new file mode 100644
index 00000000..46043758
--- /dev/null
+++ b/lib/atscppapi/src/AsyncTimer.cc
@@ -0,0 +1,115 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file AsyncTimer.cc
+ */
+#include "atscppapi/AsyncTimer.h"
+#include <ts/ts.h>
+#include "logging_internal.h"
+
+using namespace atscppapi;
+
+struct atscppapi::AsyncTimerState {
+  TSCont cont_;
+  AsyncTimer::Type type_;
+  int period_in_ms_;
+  int initial_period_in_ms_;
+  TSAction initial_timer_action_;
+  TSAction periodic_timer_action_;
+  AsyncTimer *timer_;
+  shared_ptr<AsyncDispatchControllerBase> dispatch_controller_;
+  AsyncTimerState(AsyncTimer::Type type, int period_in_ms, int initial_period_in_ms, AsyncTimer *timer)
+    : type_(type), period_in_ms_(period_in_ms), initial_period_in_ms_(initial_period_in_ms),
+      initial_timer_action_(NULL), periodic_timer_action_(NULL), timer_(timer) { }
+};
+
+namespace {
+
+int handleTimerEvent(TSCont cont, TSEvent event, void *edata) {
+  AsyncTimerState *state = static_cast<AsyncTimerState *>(TSContDataGet(cont));
+  if (state->initial_timer_action_) {
+    LOG_DEBUG("Received initial timer event.");
+    state->initial_timer_action_ = NULL; // mark it so that it won't be canceled later on
+    if (state->type_ == AsyncTimer::TYPE_PERIODIC) {
+      LOG_DEBUG("Scheduling periodic event now");
+      state->periodic_timer_action_ = TSContScheduleEvery(state->cont_, state->period_in_ms_,
+                                                          TS_THREAD_POOL_DEFAULT);
+    }
+  }
+  if (!state->dispatch_controller_->dispatch()) {
+    LOG_DEBUG("Receiver has died. Destroying timer");
+    delete state->timer_; // auto-destruct only in this case
+  }
+  return 0;
+}
+
+}
+
+AsyncTimer::AsyncTimer(Type type, int period_in_ms, int initial_period_in_ms) {
+  state_ = new AsyncTimerState(type, period_in_ms, initial_period_in_ms, this);
+  state_->cont_ = TSContCreate(handleTimerEvent, TSMutexCreate());
+  TSContDataSet(state_->cont_, static_cast<void *>(state_));
+}
+
+void AsyncTimer::run() {
+  state_->dispatch_controller_ = getDispatchController(); // keep a copy in state so that cont handler can use it
+  int one_off_timeout_in_ms = 0;
+  int regular_timeout_in_ms = 0;
+  if (state_->type_ == AsyncTimer::TYPE_ONE_OFF) {
+    one_off_timeout_in_ms = state_->period_in_ms_;
+  }
+  else {
+    one_off_timeout_in_ms = state_->initial_period_in_ms_;
+    regular_timeout_in_ms = state_->period_in_ms_;
+  }
+  if (one_off_timeout_in_ms) {
+    LOG_DEBUG("Scheduling initial/one-off event");
+    state_->initial_timer_action_ = TSContSchedule(state_->cont_, one_off_timeout_in_ms,
+                                                   TS_THREAD_POOL_DEFAULT);
+  }
+  else if (regular_timeout_in_ms) {
+    LOG_DEBUG("Scheduling regular timer events");
+    state_->periodic_timer_action_ = TSContScheduleEvery(state_->cont_, regular_timeout_in_ms,
+                                                         TS_THREAD_POOL_DEFAULT);
+  }
+}
+
+void AsyncTimer::cancel() {
+  if (!state_->cont_) {
+    LOG_DEBUG("Already canceled");
+    return;
+  }
+  TSMutexLock(TSContMutexGet(state_->cont_)); // mutex will be unlocked in destroy
+  if (state_->initial_timer_action_) {
+    LOG_DEBUG("Canceling initial timer action");
+    TSActionCancel(state_->initial_timer_action_);
+  }
+  if (state_->periodic_timer_action_) {
+    LOG_DEBUG("Canceling periodic timer action");
+    TSActionCancel(state_->periodic_timer_action_);
+  }
+  LOG_DEBUG("Destroying cont");
+  TSContDestroy(state_->cont_);
+  state_->cont_ = NULL;
+}
+
+AsyncTimer::~AsyncTimer() {
+  cancel();
+  delete state_;
+}
diff --git a/lib/atscppapi/src/CaseInsensitiveStringComparator.cc b/lib/atscppapi/src/CaseInsensitiveStringComparator.cc
new file mode 100644
index 00000000..2d8b77b5
--- /dev/null
+++ b/lib/atscppapi/src/CaseInsensitiveStringComparator.cc
@@ -0,0 +1,70 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file CaseInsensitiveStringComparator.cc
+ */
+
+#include "atscppapi/CaseInsensitiveStringComparator.h"
+
+namespace {
+  static char NORMALIZED_CHARACTERS[256];
+  static volatile bool normalizer_initialized(false);
+}
+
+using atscppapi::CaseInsensitiveStringComparator;
+using std::string;
+
+bool CaseInsensitiveStringComparator::operator()(const string &lhs, const string &rhs) const {
+  return (compare(lhs, rhs) < 0);
+}
+
+int CaseInsensitiveStringComparator::compare(const string &lhs, const string &rhs) const {
+  if (!normalizer_initialized) {
+    // this initialization is safe to execute in concurrent threads - hence no locking
+    for (int i = 0; i < 256; ++i) {
+      NORMALIZED_CHARACTERS[i] = static_cast<unsigned char>(i);
+    }
+    for (unsigned char i = 'A'; i < 'Z'; ++i) {
+      NORMALIZED_CHARACTERS[i] = 'a' + (i - 'A');
+    }
+    normalizer_initialized = true;
+  }
+  size_t lhs_size = lhs.size();
+  size_t rhs_size = rhs.size();
+  if ((lhs_size > 0) && (rhs_size > 0)) { 
+    size_t num_chars_to_compare = (lhs_size < rhs_size) ? lhs_size : rhs_size;
+    for (size_t i = 0; i < num_chars_to_compare; ++i) {
+      unsigned char normalized_lhs_char = NORMALIZED_CHARACTERS[static_cast<const unsigned char>(lhs[i])]; 
+      unsigned char normalized_rhs_char = NORMALIZED_CHARACTERS[static_cast<const unsigned char>(rhs[i])]; 
+      if (normalized_lhs_char < normalized_rhs_char) {
+        return -1;
+      }
+      if (normalized_lhs_char > normalized_rhs_char) {
+        return 1;
+      }
+    }
+  }
+  if (lhs_size < rhs_size) {
+    return -1;
+  }
+  if (lhs_size > rhs_size) {
+    return 1;
+  }
+  return 0; // both strings are equal
+}
diff --git a/lib/atscppapi/src/ClientRequest.cc b/lib/atscppapi/src/ClientRequest.cc
new file mode 100644
index 00000000..32d73066
--- /dev/null
+++ b/lib/atscppapi/src/ClientRequest.cc
@@ -0,0 +1,74 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file ClientRequest.cc
+ */
+
+#include "atscppapi/ClientRequest.h"
+#include <cstdlib>
+#include <ts/ts.h>
+#include "atscppapi/noncopyable.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+
+/**
+ * @private
+ */
+struct atscppapi::ClientRequestState: noncopyable {
+  TSHttpTxn txn_;
+  TSMBuffer pristine_hdr_buf_;
+  TSMLoc pristine_url_loc_;
+  Url pristine_url_;
+  ClientRequestState(TSHttpTxn txn) : txn_(txn), pristine_hdr_buf_(NULL), pristine_url_loc_(NULL) { }
+};
+
+atscppapi::ClientRequest::ClientRequest(void *ats_txn_handle, void *hdr_buf, void *hdr_loc) :
+    Request(hdr_buf, hdr_loc) {
+  state_ = new ClientRequestState(static_cast<TSHttpTxn>(ats_txn_handle));
+}
+
+atscppapi::ClientRequest::~ClientRequest() {
+  if (state_->pristine_url_loc_ && state_->pristine_hdr_buf_) {
+    TSMLoc null_parent_loc = NULL;
+    LOG_DEBUG("Releasing pristine url loc for transaction %p; hdr_buf %p, url_loc %p", state_->txn_,
+              state_->pristine_hdr_buf_, state_->pristine_url_loc_);
+    TSHandleMLocRelease(state_->pristine_hdr_buf_, null_parent_loc, state_->pristine_url_loc_);
+  }
+
+  delete state_;
+}
+
+const Url &atscppapi::ClientRequest::getPristineUrl() const {
+  if (!state_->pristine_url_loc_) {
+    TSHttpTxnPristineUrlGet(state_->txn_, &state_->pristine_hdr_buf_, &state_->pristine_url_loc_);
+
+    if ((state_->pristine_hdr_buf_ != NULL) && (state_->pristine_url_loc_ != NULL)) {
+      state_->pristine_url_.init(state_->pristine_hdr_buf_, state_->pristine_url_loc_);
+      LOG_DEBUG("Pristine URL initialized");
+    } else {
+      LOG_ERROR("Failed to get pristine URL for transaction %p; hdr_buf %p, url_loc %p", state_->txn_,
+                state_->pristine_hdr_buf_, state_->pristine_url_loc_);
+    }
+  } else {
+    LOG_DEBUG("Pristine URL already initialized");
+  }
+
+  return state_->pristine_url_;
+}
diff --git a/lib/atscppapi/src/GlobalPlugin.cc b/lib/atscppapi/src/GlobalPlugin.cc
new file mode 100644
index 00000000..b2d85818
--- /dev/null
+++ b/lib/atscppapi/src/GlobalPlugin.cc
@@ -0,0 +1,79 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file GlobalPlugin.cc
+ */
+#include "atscppapi/GlobalPlugin.h"
+#include <ts/ts.h>
+#include <cstddef>
+#include <cassert>
+#include "atscppapi/noncopyable.h"
+#include "utils_internal.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+
+/**
+ * @private
+ */
+struct atscppapi::GlobalPluginState : noncopyable {
+  TSCont cont_;
+  GlobalPlugin *global_plugin_;
+  bool ignore_internal_transactions_;
+
+  GlobalPluginState(GlobalPlugin *global_plugin, bool ignore_internal_transactions)
+    : global_plugin_(global_plugin), ignore_internal_transactions_(ignore_internal_transactions) { }
+};
+
+namespace {
+
+static int handleGlobalPluginEvents(TSCont cont, TSEvent event, void *edata) {
+  TSHttpTxn txn = static_cast<TSHttpTxn>(edata);
+  GlobalPluginState *state = static_cast<GlobalPluginState *>(TSContDataGet(cont));
+  if (state->ignore_internal_transactions_ && (TSHttpIsInternalRequest(txn) == TS_SUCCESS)) {
+    LOG_DEBUG("Ignoring event %d on internal transaction %p for global plugin %p", event, txn,
+              state->global_plugin_);
+    TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+  } else {
+    LOG_DEBUG("Invoking global plugin %p for event %d on transaction %p", state->global_plugin_, event, txn);
+    utils::internal::invokePluginForEvent(state->global_plugin_, txn, event);
+  }
+  return 0;
+}
+
+} /* anonymous namespace */
+
+GlobalPlugin::GlobalPlugin(bool ignore_internal_transactions) {
+  utils::internal::initTransactionManagement();
+  state_ = new GlobalPluginState(this, ignore_internal_transactions);
+  TSMutex mutex = NULL;
+  state_->cont_ = TSContCreate(handleGlobalPluginEvents, mutex);
+  TSContDataSet(state_->cont_, static_cast<void *>(state_));
+}
+
+GlobalPlugin::~GlobalPlugin() {
+  TSContDestroy(state_->cont_);
+  delete state_;
+}
+
+void GlobalPlugin::registerHook(Plugin::HookType hook_type) {
+  TSHttpHookID hook_id = utils::internal::convertInternalHookToTsHook(hook_type);
+  TSHttpHookAdd(hook_id, state_->cont_);
+  LOG_DEBUG("Registered global plugin %p for hook %s", this, HOOK_TYPE_STRINGS[hook_type].c_str());
+}
diff --git a/lib/atscppapi/src/GzipDeflateTransformation.cc b/lib/atscppapi/src/GzipDeflateTransformation.cc
new file mode 100644
index 00000000..3b70c022
--- /dev/null
+++ b/lib/atscppapi/src/GzipDeflateTransformation.cc
@@ -0,0 +1,154 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file GzipDeflateTransformation.cc
+ */
+
+#include <string>
+#include <cstring>
+#include <vector>
+#include <zlib.h>
+#include <inttypes.h>
+#include "atscppapi/TransformationPlugin.h"
+#include "atscppapi/GzipDeflateTransformation.h"
+#include "logging_internal.h"
+
+using namespace atscppapi::transformations;
+using std::string;
+using std::vector;
+
+namespace {
+const int GZIP_MEM_LEVEL = 8;
+const int WINDOW_BITS = 31; // Always use 31 for gzip.
+const unsigned int ONE_KB = 1024;
+}
+
+/**
+ * @private
+ */
+struct atscppapi::transformations::GzipDeflateTransformationState: noncopyable {
+  z_stream z_stream_;
+  bool z_stream_initialized_;
+  TransformationPlugin::Type transformation_type_;
+  int64_t bytes_produced_;
+
+  GzipDeflateTransformationState(TransformationPlugin::Type type) :
+        z_stream_initialized_(false), transformation_type_(type), bytes_produced_(0) {
+
+    memset(&z_stream_, 0, sizeof(z_stream_));
+    int err =
+        deflateInit2(&z_stream_, Z_DEFAULT_COMPRESSION, Z_DEFLATED, WINDOW_BITS , GZIP_MEM_LEVEL, Z_DEFAULT_STRATEGY);
+
+    if (Z_OK != err) {
+      LOG_ERROR("deflateInit2 failed with error code '%d'.", err);
+    } else {
+      z_stream_initialized_ = true;
+    }
+  };
+
+  ~GzipDeflateTransformationState() {
+    if (z_stream_initialized_) {
+      deflateEnd(&z_stream_);
+    }
+  };
+};
+
+
+GzipDeflateTransformation::GzipDeflateTransformation(Transaction &transaction, TransformationPlugin::Type type) : TransformationPlugin(transaction, type) {
+  state_ = new GzipDeflateTransformationState(type);
+}
+
+GzipDeflateTransformation::~GzipDeflateTransformation() {
+  delete state_;
+}
+
+void GzipDeflateTransformation::consume(const string &data) {
+  if (data.size() == 0) {
+    return;
+  }
+
+  if (!state_->z_stream_initialized_) {
+    LOG_ERROR("Unable to deflate output because the z_stream was not initialized.");
+    return;
+  }
+
+  int iteration = 0;
+  state_->z_stream_.data_type = Z_ASCII;
+  state_->z_stream_.next_in = reinterpret_cast<unsigned char *>(const_cast<char *>(data.c_str()));
+  state_->z_stream_.avail_in = data.length();
+
+  // For small payloads the size can actually be greater than the original input
+  // so we'll use twice the original size to avoid needless repeated calls to deflate.
+  unsigned long buffer_size = (data.length() < ONE_KB) ? 2 * ONE_KB : data.length();
+  vector<unsigned char> buffer(buffer_size);
+
+  do {
+    LOG_DEBUG("Iteration %d: Deflate will compress %ld bytes", ++iteration, data.size());
+    state_->z_stream_.avail_out = buffer_size;
+    state_->z_stream_.next_out = &buffer[0];
+
+    int err = deflate(&state_->z_stream_, Z_SYNC_FLUSH);
+    if (Z_OK != err) {
+      LOG_ERROR("Iteration %d: Deflate failed to compress %ld bytes with error code '%d'", iteration, data.size(), err);
+      return;
+    }
+
+    int bytes_to_write = buffer_size - state_->z_stream_.avail_out;
+    state_->bytes_produced_ += bytes_to_write;
+
+    LOG_DEBUG("Iteration %d: Deflate compressed %ld bytes to %d bytes, producing output...", iteration, data.size(), bytes_to_write);
+    produce(string(reinterpret_cast<char *>(&buffer[0]), static_cast<size_t>(bytes_to_write)));
+  } while (state_->z_stream_.avail_out == 0);
+
+  if (state_->z_stream_.avail_in != 0) {
+    LOG_ERROR("Inflate finished with data still remaining in the buffer of size '%u'", state_->z_stream_.avail_in);
+  }
+}
+
+void GzipDeflateTransformation::handleInputComplete() {
+  // We will flush out anything that's remaining in the gzip buffer
+  int status = Z_OK;
+  int iteration = 0;
+  const int buffer_size = 1024; // 1024 bytes is usually more than enough for the epilouge
+  unsigned char buffer[buffer_size];
+
+  /* Deflate remaining data */
+  do {
+    LOG_DEBUG("Iteration %d: Gzip deflate finalizing.", ++iteration);
+    state_->z_stream_.data_type = Z_ASCII;
+    state_->z_stream_.avail_out = buffer_size;
+    state_->z_stream_.next_out = buffer;
+
+    status = deflate(&state_->z_stream_, Z_FINISH);
+
+    int bytes_to_write = buffer_size - state_->z_stream_.avail_out;
+    state_->bytes_produced_ += bytes_to_write;
+
+    if (status == Z_OK || status == Z_STREAM_END) {
+      LOG_DEBUG("Iteration %d: Gzip deflate finalize had an extra %d bytes to process, status '%d'. Producing output...", iteration, bytes_to_write, status);
+      produce(string(reinterpret_cast<char *>(buffer), static_cast<size_t>(bytes_to_write)));
+    } else if (status != Z_STREAM_END) {
+      LOG_ERROR("Iteration %d: Gzip deflinate finalize produced an error '%d'", iteration, status);
+    }
+  } while (status == Z_OK);
+
+  int64_t bytes_written = setOutputComplete();
+  if (state_->bytes_produced_ != bytes_written) {
+    LOG_ERROR("Gzip bytes produced sanity check failed, deflated bytes = %" PRId64 " != written bytes = %" PRId64, state_->bytes_produced_, bytes_written);
+  }
+}
diff --git a/lib/atscppapi/src/GzipInflateTransformation.cc b/lib/atscppapi/src/GzipInflateTransformation.cc
new file mode 100644
index 00000000..9561bfc7
--- /dev/null
+++ b/lib/atscppapi/src/GzipInflateTransformation.cc
@@ -0,0 +1,131 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file GzipInflateTransformation.cc
+ */
+
+#include <string>
+#include <cstring>
+#include <vector>
+#include <zlib.h>
+#include <inttypes.h>
+#include "atscppapi/TransformationPlugin.h"
+#include "atscppapi/GzipInflateTransformation.h"
+#include "logging_internal.h"
+
+using namespace atscppapi::transformations;
+using std::string;
+using std::vector;
+
+namespace {
+const int WINDOW_BITS = 31; // Always use 31 for gzip.
+unsigned int INFLATE_SCALE_FACTOR = 6;
+}
+
+/**
+ * @private
+ */
+struct atscppapi::transformations::GzipInflateTransformationState: noncopyable {
+  z_stream z_stream_;
+  bool z_stream_initialized_;
+  int64_t bytes_produced_;
+  TransformationPlugin::Type transformation_type_;
+
+  GzipInflateTransformationState(TransformationPlugin::Type type) :
+        z_stream_initialized_(false), bytes_produced_(0), transformation_type_(type) {
+
+    memset(&z_stream_, 0, sizeof(z_stream_));
+
+    int err = inflateInit2(&z_stream_, WINDOW_BITS);
+    if (Z_OK != err) {
+      LOG_ERROR("inflateInit2 failed with error code '%d'.", err);
+    } else {
+      z_stream_initialized_ = true;
+    }
+  };
+
+  ~GzipInflateTransformationState() {
+    if (z_stream_initialized_) {
+      int err = inflateEnd(&z_stream_);
+      if (Z_OK != err && Z_STREAM_END != err) {
+        LOG_ERROR("Unable to inflateEnd(), returned error code '%d'", err);
+      }
+    }
+  };
+};
+
+
+GzipInflateTransformation::GzipInflateTransformation(Transaction &transaction, TransformationPlugin::Type type) : TransformationPlugin(transaction, type) {
+  state_ = new GzipInflateTransformationState(type);
+}
+
+GzipInflateTransformation::~GzipInflateTransformation() {
+  delete state_;
+}
+
+void GzipInflateTransformation::consume(const string &data) {
+  if (data.size() == 0) {
+    return;
+  }
+
+  if (!state_->z_stream_initialized_) {
+    LOG_ERROR("Unable to inflate output because the z_stream was not initialized.");
+    return;
+  }
+
+  int err = Z_OK;
+  int iteration = 0;
+  int inflate_block_size = INFLATE_SCALE_FACTOR * data.size();
+  vector<char> buffer(inflate_block_size);
+
+  // Setup the compressed input
+  state_->z_stream_.next_in = reinterpret_cast<unsigned char *>(const_cast<char *>(data.c_str()));
+  state_->z_stream_.avail_in = data.length();
+
+  // Loop while we have more data to inflate
+  while (state_->z_stream_.avail_in > 0 && err != Z_STREAM_END) {
+    LOG_DEBUG("Iteration %d: Gzip has %d bytes to inflate", ++iteration, state_->z_stream_.avail_in);
+
+    // Setup where the decompressed output will go.
+    state_->z_stream_.next_out = reinterpret_cast<unsigned char *>(&buffer[0]);
+    state_->z_stream_.avail_out = inflate_block_size;
+
+    /* Uncompress */
+    err = inflate(&state_->z_stream_, Z_SYNC_FLUSH);
+
+    if (err != Z_OK && err != Z_STREAM_END) {
+     LOG_ERROR("Iteration %d: Inflate failed with error '%d'", iteration, err);
+     return;
+    }
+
+    LOG_DEBUG("Iteration %d: Gzip inflated a total of %d bytes, producingOutput...", iteration, (inflate_block_size - state_->z_stream_.avail_out));
+    produce(string(&buffer[0], (inflate_block_size - state_->z_stream_.avail_out)));
+    state_->bytes_produced_ += (inflate_block_size - state_->z_stream_.avail_out);
+  }
+}
+
+void GzipInflateTransformation::handleInputComplete() {
+  int64_t bytes_written = setOutputComplete();
+  if (state_->bytes_produced_ != bytes_written) {
+    LOG_ERROR("Gzip bytes produced sanity check failed, inflated bytes = %" PRId64 " != written bytes = %" PRId64, state_->bytes_produced_, bytes_written);
+  }
+}
+
+
+
diff --git a/lib/atscppapi/src/Headers.cc b/lib/atscppapi/src/Headers.cc
new file mode 100644
index 00000000..96afbb99
--- /dev/null
+++ b/lib/atscppapi/src/Headers.cc
@@ -0,0 +1,562 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Headers.cc
+ */
+#include "atscppapi/Headers.h"
+#include "atscppapi/shared_ptr.h"
+#include "logging_internal.h"
+#include <string>
+#include <cstring>
+#include <sstream>
+#include <ts/ts.h>
+#include "atscppapi/noncopyable.h"
+#include <cctype>
+
+using atscppapi::Headers;
+using atscppapi::HeaderField;
+using atscppapi::HeaderFieldName;
+using atscppapi::header_field_iterator;
+using atscppapi::header_field_value_iterator;
+
+using std::string;
+
+namespace atscppapi {
+
+HeaderFieldName::HeaderFieldName(const std::string &name) {
+  name_ = name;
+}
+
+HeaderFieldName::operator std::string() {
+  return name_;
+}
+
+HeaderFieldName::operator const char*() {
+  return name_.c_str();
+}
+
+std::string HeaderFieldName::str() {
+  return name_;
+}
+
+HeaderFieldName::size_type HeaderFieldName::length() {
+  return name_.length();
+}
+
+const char *HeaderFieldName::c_str() {
+  return name_.c_str();
+}
+
+bool HeaderFieldName::operator==(const char *field_name) {
+  return (::strcasecmp(c_str(), field_name) == 0);
+}
+
+bool HeaderFieldName::operator==(const std::string &field_name) {
+  return operator==(field_name.c_str());
+}
+
+bool HeaderFieldName::operator!=(const char *field_name) {
+  return !operator==(field_name);
+}
+
+bool HeaderFieldName::operator!=(const std::string &field_name) {
+  return !operator==(field_name.c_str());
+}
+
+/**
+ * @private
+ */
+struct HeaderFieldValueIteratorState: noncopyable {
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  TSMLoc field_loc_;
+  int index_;
+  HeaderFieldValueIteratorState() : hdr_buf_(NULL), hdr_loc_(NULL), field_loc_(NULL), index_(0) { }
+  void reset(TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc field_loc, int index) {
+    hdr_buf_ = bufp;
+    hdr_loc_ = hdr_loc;
+    field_loc_ = field_loc;
+    index_ = index;
+  }
+};
+
+header_field_value_iterator::header_field_value_iterator(void *bufp, void *hdr_loc, void *field_loc, int index) {
+  state_ = new HeaderFieldValueIteratorState();
+  state_->reset(static_cast<TSMBuffer>(bufp),
+      static_cast<TSMLoc>(hdr_loc),
+      static_cast<TSMLoc>(field_loc),
+      index);
+}
+
+header_field_value_iterator::header_field_value_iterator(const header_field_value_iterator& it) {
+  state_ = new HeaderFieldValueIteratorState();
+  state_->reset(it.state_->hdr_buf_, it.state_->hdr_loc_, it.state_->field_loc_, it.state_->index_);
+}
+
+header_field_value_iterator::~header_field_value_iterator() {
+  delete state_;
+}
+
+std::string header_field_value_iterator::operator*() {
+  if (state_->index_ >= 0) {
+    int length = 0;
+    const char *str = TSMimeHdrFieldValueStringGet(state_->hdr_buf_, state_->hdr_loc_, state_->field_loc_, state_->index_, &length);
+    if (length && str) {
+     return std::string(str, length);
+    }
+  }
+  return std::string();
+}
+
+header_field_value_iterator& header_field_value_iterator::operator++() {
+  ++state_->index_;
+  return *this;
+}
+
+header_field_value_iterator header_field_value_iterator::operator++(int) {
+ header_field_value_iterator tmp(*this);
+ operator++();
+ return tmp;
+}
+
+bool header_field_value_iterator::operator==(const header_field_value_iterator& rhs) const {
+  return (state_->hdr_buf_ == rhs.state_->hdr_buf_) && (state_->hdr_loc_ == rhs.state_->hdr_loc_) &&
+                 (state_->field_loc_ == rhs.state_->field_loc_) && (state_->index_ == rhs.state_->index_);
+}
+
+bool header_field_value_iterator::operator!=(const header_field_value_iterator& rhs) const {
+  return !operator==(rhs);
+}
+
+/**
+ * @private
+ */
+struct MLocContainer {
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  TSMLoc field_loc_;
+  MLocContainer(TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc field_loc) :
+    hdr_buf_(bufp), hdr_loc_(hdr_loc), field_loc_(field_loc) { }
+  ~MLocContainer() {
+    if (field_loc_ != TS_NULL_MLOC) {
+      TSHandleMLocRelease(hdr_buf_, hdr_loc_, field_loc_);
+    }
+  }
+};
+
+/**
+ * @private
+ */
+struct HeaderFieldIteratorState {
+  shared_ptr<MLocContainer> mloc_container_;
+  HeaderFieldIteratorState(TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc field_loc)
+    : mloc_container_(new MLocContainer(bufp, hdr_loc, field_loc)) { }
+};
+
+HeaderField::~HeaderField() {
+}
+
+HeaderField::size_type HeaderField::size() const {
+  return TSMimeHdrFieldValuesCount(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_);
+}
+
+header_field_value_iterator HeaderField::begin() {
+  return header_field_value_iterator(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_, 0);
+}
+
+header_field_value_iterator HeaderField::end() {
+  return header_field_value_iterator(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_, size());
+}
+
+HeaderFieldName HeaderField::name() const {
+  int length = 0;
+  const char *str = TSMimeHdrFieldNameGet(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_, &length);
+  if (str && length) {
+    return std::string(str, length);
+  }
+  return std::string();
+}
+
+std::string HeaderField::values(const char *join) {
+  std::ostringstream oss;
+  int count = size();
+  for(header_field_value_iterator it = begin(); it != end(); ++it) {
+    oss << (*it);
+    if (--count > 0)
+      oss << join;
+  }
+  return oss.str();
+}
+
+std::string HeaderField::values(const std::string &join) {
+  return values(join.c_str());
+}
+
+std::string HeaderField::values(const char join) {
+  return values(std::string().append(1,join));
+}
+
+std::string Headers::value(const std::string key, size_type index /* = 0 */) {
+  header_field_iterator iter = find(key);
+  if (iter == end()) {
+    return string();
+  }
+  if (index == 0) { // skip for loop
+    return *((*iter).begin());
+  }
+  for (; iter != end(); iter.nextDup()) {
+    if (index < (*iter).size()) {
+      return (*iter)[index];
+    }
+    index -= (*iter).size();
+  }
+  return string();
+}
+
+bool HeaderField::empty() {
+  return (begin() == end());
+}
+
+bool HeaderField::clear() {
+  return (TSMimeHdrFieldValuesClear(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_) == TS_SUCCESS);
+}
+
+bool HeaderField::erase(header_field_value_iterator it) {
+  return (TSMimeHdrFieldValueDelete(it.state_->hdr_buf_, it.state_->hdr_loc_, it.state_->field_loc_, it.state_->index_) == TS_SUCCESS);
+}
+
+bool HeaderField::append(const std::string &value) {
+  return append(value.c_str(), value.length());
+}
+
+bool HeaderField::append(const char *value, int length) {
+  return (TSMimeHdrFieldValueStringInsert(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_, -1, value, -1) == TS_SUCCESS);
+}
+
+bool HeaderField::setName(const std::string &str) {
+  return (TSMimeHdrFieldNameSet(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_, str.c_str(), str.length()) == TS_SUCCESS);
+}
+
+bool HeaderField::operator==(const char *field_name) const {
+  return (::strcasecmp(name(), field_name) == 0);
+}
+
+bool HeaderField::operator==(const std::string &field_name) const {
+  return operator==(field_name.c_str());
+}
+
+bool HeaderField::operator!=(const char *field_name) const {
+  return !operator==(field_name);
+}
+
+bool HeaderField::operator!=(const std::string &field_name) const {
+  return !operator==(field_name.c_str());
+}
+
+bool HeaderField::operator=(const std::string &field_value) {
+  if(!clear())
+    return false;
+
+  return append(field_value);
+}
+
+bool HeaderField::operator=(const char *field_value) {
+  if(!clear())
+    return false;
+
+  return append(field_value);
+}
+
+std::string HeaderField::operator[](const int index) {
+  return *header_field_value_iterator(iter_.state_->mloc_container_->hdr_buf_, iter_.state_->mloc_container_->hdr_loc_, iter_.state_->mloc_container_->field_loc_, index);
+}
+
+std::string HeaderField::str() {
+  std::ostringstream oss;
+  oss << (*this);
+  return oss.str();
+}
+
+std::ostream& operator<<(std::ostream& os, HeaderField& obj) {
+  os << obj.name() << ": ";
+  int count = obj.size();
+  for(HeaderField::iterator it = obj.begin(); it != obj.end(); ++it) {
+    os << (*it);
+    if (--count > 0)
+      os << ",";
+  }
+  return os;
+}
+
+header_field_iterator::header_field_iterator(void *hdr_buf, void *hdr_loc, void *field_loc) :
+  state_(new HeaderFieldIteratorState(static_cast<TSMBuffer>(hdr_buf), static_cast<TSMLoc>(hdr_loc),
+                                      static_cast<TSMLoc>(field_loc))) { }
+
+header_field_iterator::header_field_iterator(const header_field_iterator& it) :
+  state_(new HeaderFieldIteratorState(*it.state_)) { } 
+
+header_field_iterator &header_field_iterator::operator=(const header_field_iterator &rhs) {
+  if (this != &rhs) {
+    delete state_;
+    state_ = new HeaderFieldIteratorState(*rhs.state_);
+  }
+  return *this;
+}
+
+header_field_iterator::~header_field_iterator() {
+  delete state_;
+}
+
+// utility function to use to advance iterators using different functions
+HeaderFieldIteratorState *advanceIterator(HeaderFieldIteratorState *state,
+                                          TSMLoc (*getNextField)(TSMBuffer, TSMLoc, TSMLoc)) {
+  if (state->mloc_container_->field_loc_ != TS_NULL_MLOC) {
+    TSMBuffer hdr_buf = state->mloc_container_->hdr_buf_;
+    TSMLoc hdr_loc = state->mloc_container_->hdr_loc_;
+    TSMLoc next_field_loc = getNextField(hdr_buf, hdr_loc, state->mloc_container_->field_loc_);
+    delete state;
+    state = new HeaderFieldIteratorState(hdr_buf, hdr_loc, next_field_loc);
+  }
+  return state;
+}
+
+header_field_iterator& header_field_iterator::operator++() {
+  state_ = advanceIterator(state_, TSMimeHdrFieldNext);  
+  return *this;
+}
+
+header_field_iterator header_field_iterator::operator++(int) {
+  header_field_iterator tmp(*this);
+  operator++();
+  return tmp;
+}
+
+header_field_iterator& header_field_iterator::nextDup() {
+  state_ = advanceIterator(state_, TSMimeHdrFieldNextDup);  
+  return *this;
+}
+
+bool header_field_iterator::operator==(const header_field_iterator& rhs) const {
+  return (state_->mloc_container_->hdr_buf_ == rhs.state_->mloc_container_->hdr_buf_) && (state_->mloc_container_->hdr_loc_ == rhs.state_->mloc_container_->hdr_loc_) &&
+      (state_->mloc_container_->field_loc_ == rhs.state_->mloc_container_->field_loc_);
+}
+
+bool header_field_iterator::operator!=(const header_field_iterator& rhs) const {
+  return !operator==(rhs);
+}
+
+HeaderField header_field_iterator::operator*() {
+  return HeaderField(*this);
+}
+
+/**
+ * @private
+ */
+struct HeadersState: noncopyable {
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  bool self_created_structures_;
+  HeadersState() {
+    hdr_buf_ = TSMBufferCreate();
+    hdr_loc_ = TSHttpHdrCreate(hdr_buf_);
+    self_created_structures_ = true;
+  }
+  void reset(TSMBuffer bufp, TSMLoc hdr_loc) {
+    if (self_created_structures_) {
+      TSHandleMLocRelease(hdr_buf_, TS_NULL_MLOC /* no parent */, hdr_loc_);
+      TSMBufferDestroy(hdr_buf_);
+      self_created_structures_ = false;
+    }
+    hdr_buf_ = bufp;
+    hdr_loc_ = hdr_loc;
+  }
+  ~HeadersState() {
+    reset(NULL, NULL);
+  }
+};
+
+Headers::Headers() {
+  state_ = new HeadersState();
+}
+
+Headers::Headers(void *bufp, void *mloc) {
+  state_ = new HeadersState();
+  reset(bufp, mloc);
+}
+
+void Headers::reset(void *bufp, void *mloc) {
+  state_->reset(static_cast<TSMBuffer>(bufp), static_cast<TSMLoc>(mloc));
+}
+
+Headers::~Headers() {
+  delete state_;
+}
+
+bool Headers::isInitialized() const {
+  return (state_->hdr_buf_ && state_->hdr_loc_);
+}
+
+bool Headers::empty() {
+  return (begin() == end());
+}
+
+Headers::size_type Headers::size() const {
+  return TSMimeHdrFieldsCount(state_->hdr_buf_, state_->hdr_loc_);
+}
+
+Headers::size_type Headers::lengthBytes() const {
+  return TSMimeHdrLengthGet(state_->hdr_buf_, state_->hdr_loc_);
+}
+
+header_field_iterator Headers::begin() {
+  return header_field_iterator(state_->hdr_buf_, state_->hdr_loc_, TSMimeHdrFieldGet(state_->hdr_buf_, state_->hdr_loc_, 0));
+}
+
+header_field_iterator Headers::end() {
+  return header_field_iterator(state_->hdr_buf_, state_->hdr_loc_, TS_NULL_MLOC);
+}
+
+bool Headers::clear() {
+  return (TSMimeHdrFieldsClear(state_->hdr_buf_, state_->hdr_loc_) == TS_SUCCESS);
+}
+
+bool Headers::erase(header_field_iterator it) {
+  return (TSMimeHdrFieldDestroy(it.state_->mloc_container_->hdr_buf_, it.state_->mloc_container_->hdr_loc_, it.state_->mloc_container_->field_loc_) == TS_SUCCESS);
+}
+
+Headers::size_type Headers::erase(const std::string &key) {
+  return erase(key.c_str(), key.length());
+}
+
+Headers::size_type Headers::erase(const char *key, int length) {
+  header_field_iterator iter = find(key, length);
+  size_type erased_count = 0;
+  while (iter != end()) {
+    header_field_iterator iter_to_delete = iter;
+    iter.nextDup();
+    erase(iter_to_delete);
+    ++erased_count;
+  }
+  return erased_count;
+}
+
+Headers::size_type Headers::count(const char *key, int length) {
+  size_type ret_count = 0;
+  for(header_field_iterator it = begin(); it != end(); ++it) {
+    if ((*it).name() == key) {
+      ret_count++;
+    }
+  }
+  return ret_count;
+}
+
+Headers::size_type Headers::count(const std::string &key) {
+  return count(key.c_str(), key.length());
+}
+
+std::string Headers::values(const std::string &key, const char *join) {
+  std::string ret;
+  Headers::size_type num_header_fields = count(key);
+  ret.reserve(128 * num_header_fields);
+
+  for (header_field_iterator it = find(key); it != end(); it.nextDup()) {
+    ret.append((*it).values(join));
+    if (--num_header_fields > 0) {
+      ret.append(join);
+    }
+  }
+
+  return ret;
+}
+
+std::string Headers::values(const std::string &key, const std::string &join) {
+  return values(key, join.c_str());
+}
+
+std::string Headers::values(const std::string &key, const char join) {
+  return values(key, std::string().assign(1, join));
+}
+
+header_field_iterator Headers::find(const std::string &key) {
+  return find(key.c_str(), key.length());
+}
+
+header_field_iterator Headers::find(const char *key, int length) {
+  TSMLoc field_loc = TSMimeHdrFieldFind(state_->hdr_buf_, state_->hdr_loc_, key, length);
+  if (field_loc != TS_NULL_MLOC)
+    return header_field_iterator(state_->hdr_buf_, state_->hdr_loc_, field_loc);
+
+  return end();
+}
+
+Headers::iterator Headers::append(const std::string &key, const std::string &value) {
+  TSMLoc field_loc = TS_NULL_MLOC;
+
+  if (TSMimeHdrFieldCreate(state_->hdr_buf_, state_->hdr_loc_, &field_loc) == TS_SUCCESS) {
+    TSMimeHdrFieldNameSet(state_->hdr_buf_, state_->hdr_loc_, field_loc, key.c_str(), key.length());
+    TSMimeHdrFieldAppend(state_->hdr_buf_, state_->hdr_loc_, field_loc);
+    TSMimeHdrFieldValueStringInsert(state_->hdr_buf_, state_->hdr_loc_, field_loc, 0, value.c_str(), value.length());
+    return header_field_iterator(state_->hdr_buf_, state_->hdr_loc_, field_loc);
+  } else
+    return end();
+}
+
+Headers::iterator Headers::set(const std::string &key, const std::string &value) {
+  erase(key);
+  return append(key, value);
+}
+
+HeaderField Headers::operator[](const std::string &key) {
+  // In STL fashion if the key doesn't exist it will be added with an empty value.
+  header_field_iterator it = find(key);
+  if (it != end()) {
+    return *it;
+  } else {
+    return *append(key, "");
+  }
+}
+
+std::string Headers::str() {
+  std::ostringstream oss;
+  oss << (*this);
+  return oss.str();
+}
+
+std::string Headers::wireStr() {
+  string retval;
+  for (iterator iter = begin(), last = end(); iter != last; ++iter) {
+    HeaderField hf = *iter;
+    retval += hf.name().str();
+    retval += ": ";
+    retval += hf.values(", ");
+    retval += "\r\n";
+  }
+  return retval;
+}
+
+std::ostream& operator<<(std::ostream &os, atscppapi::Headers &obj) {
+  for(header_field_iterator it = obj.begin(); it != obj.end(); ++it) {
+    HeaderField hf = *it;
+    os << hf << std::endl;
+  }
+  return os;
+}
+
+} /* atscppapi namespace */
+
diff --git a/lib/atscppapi/src/HttpMethod.cc b/lib/atscppapi/src/HttpMethod.cc
new file mode 100644
index 00000000..0ce5c5fb
--- /dev/null
+++ b/lib/atscppapi/src/HttpMethod.cc
@@ -0,0 +1,37 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file HttpMethod.cc
+ */
+
+#include "atscppapi/HttpMethod.h"
+
+const std::string atscppapi::HTTP_METHOD_STRINGS[] = { std::string("UNKNOWN"),
+                                                       std::string("GET"),
+                                                       std::string("POST"),
+                                                       std::string("HEAD"),
+                                                       std::string("CONNECT"),
+                                                       std::string("DELETE"),
+                                                       std::string("ICP_QUERY"),
+                                                       std::string("OPTIONS"),
+                                                       std::string("PURGE"),
+                                                       std::string("PUT"),
+                                                       std::string("TRACE"),
+                                                       std::string("PUSH") };
+
diff --git a/lib/atscppapi/src/HttpVersion.cc b/lib/atscppapi/src/HttpVersion.cc
new file mode 100644
index 00000000..7a1e3d58
--- /dev/null
+++ b/lib/atscppapi/src/HttpVersion.cc
@@ -0,0 +1,29 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file HttpVersion.cc
+ */
+
+#include "atscppapi/HttpVersion.h"
+
+const std::string atscppapi::HTTP_VERSION_STRINGS[] = { std::string("UNKNOWN"),
+                                                        std::string("HTTP/0.9"),
+                                                        std::string("HTTP/1.0"),
+                                                        std::string("HTTP/1.1") };
+
diff --git a/lib/atscppapi/src/InterceptPlugin.cc b/lib/atscppapi/src/InterceptPlugin.cc
new file mode 100644
index 00000000..0e7ca132
--- /dev/null
+++ b/lib/atscppapi/src/InterceptPlugin.cc
@@ -0,0 +1,335 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file InterceptPlugin.cc
+ */
+
+#include "atscppapi/InterceptPlugin.h"
+
+#include <ts/ts.h>
+#include "logging_internal.h"
+#include "atscppapi/noncopyable.h"
+#include "utils_internal.h"
+
+#include <cstdlib>
+#include <cerrno>
+
+#ifndef INT64_MAX
+#define INT64_MAX (9223372036854775807LL)
+#endif
+
+using namespace atscppapi;
+using std::string;
+
+namespace {
+
+/** This contains info for the continuation callback to invoke the plugin */
+struct PluginHandle {
+  InterceptPlugin *plugin_;
+  shared_ptr<Mutex> mutex_;
+  PluginHandle(InterceptPlugin *plugin, shared_ptr<Mutex> mutex) : plugin_(plugin), mutex_(mutex) { }
+};
+
+}
+
+/**
+ * @private
+ */
+struct InterceptPlugin::State {
+  TSCont cont_;
+  TSVConn net_vc_;
+
+  struct IoHandle {
+    TSVIO vio_;
+    TSIOBuffer buffer_;
+    TSIOBufferReader reader_;
+    IoHandle() : vio_(NULL), buffer_(NULL), reader_(NULL) { };
+    ~IoHandle() {
+      if (reader_) {
+        TSIOBufferReaderFree(reader_);
+      }
+      if (buffer_) {
+        TSIOBufferDestroy(buffer_);
+      }
+    };
+  };
+
+  IoHandle input_;
+  IoHandle output_;
+
+  /** the API doesn't recognize end of input; so we have to explicitly
+   * figure out when to continue reading and when to stop */
+  TSHttpParser http_parser_;
+  int expected_body_size_;
+  int num_body_bytes_read_;
+  bool hdr_parsed_;
+
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  int num_bytes_written_;
+  PluginHandle *plugin_handle_;
+  bool shut_down_;
+  Headers request_headers_;
+
+  State(TSCont cont) : cont_(cont), net_vc_(NULL), expected_body_size_(0), num_body_bytes_read_(0),
+                       hdr_parsed_(false), hdr_buf_(NULL), hdr_loc_(NULL), num_bytes_written_(0), 
+                       plugin_handle_(NULL), shut_down_(false) {
+    http_parser_ = TSHttpParserCreate();
+  }
+  
+  ~State() {
+    TSHttpParserDestroy(http_parser_); 
+    if (hdr_loc_) {
+      TSHandleMLocRelease(hdr_buf_, TS_NULL_MLOC, hdr_loc_);
+    }
+    if (hdr_buf_) {
+      TSMBufferDestroy(hdr_buf_);
+    }
+  }
+};
+
+namespace {
+
+int handleEvents(TSCont cont, TSEvent event, void *edata);
+
+}
+
+InterceptPlugin::InterceptPlugin(Transaction &transaction, InterceptPlugin::Type type)
+  : TransactionPlugin(transaction) {
+  TSCont cont = TSContCreate(handleEvents, TSMutexCreate());
+  state_ = new State(cont);
+  state_->plugin_handle_ = new PluginHandle(this, TransactionPlugin::getMutex());
+  TSContDataSet(cont, state_->plugin_handle_);
+  TSHttpTxn txn = static_cast<TSHttpTxn>(transaction.getAtsHandle());
+  if (type == SERVER_INTERCEPT) {
+    TSHttpTxnServerIntercept(cont, txn);
+  }
+  else {
+    TSHttpTxnIntercept(cont, txn);
+  }
+}
+
+InterceptPlugin::~InterceptPlugin() {
+  if (!state_->shut_down_) {
+    // transaction is closing, but intercept hasn't finished. Indicate
+    // that plugin is dead (cleanup will be done by continuation
+    // callback)
+    state_->plugin_handle_->plugin_ = NULL;
+  }
+  else {
+    TSContDestroy(state_->cont_);
+    delete state_->plugin_handle_;
+  }
+  delete state_;
+}
+
+bool InterceptPlugin::produce(const void *data, int data_size) {
+  ScopedSharedMutexLock scopedLock(getMutex());
+  if (!state_->net_vc_ || state_->shut_down_) {
+    LOG_ERROR("Intercept not operational");
+    return false;
+  }
+  if (!state_->output_.buffer_) {
+    state_->output_.buffer_ = TSIOBufferCreate();
+    state_->output_.reader_ = TSIOBufferReaderAlloc(state_->output_.buffer_);
+    state_->output_.vio_ = TSVConnWrite(state_->net_vc_, state_->cont_, state_->output_.reader_, INT64_MAX);
+  }
+  int num_bytes_written = TSIOBufferWrite(state_->output_.buffer_, data, data_size);
+  if (num_bytes_written != data_size) {
+    LOG_ERROR("Error while writing to buffer! Attempted %d bytes but only wrote %d bytes", data_size,
+              num_bytes_written);
+    return false;
+  }
+  TSVIOReenable(state_->output_.vio_);
+  state_->num_bytes_written_ += data_size;
+  LOG_DEBUG("Wrote %d bytes in response", data_size);
+  return true;
+}
+
+bool InterceptPlugin::setOutputComplete() {
+  ScopedSharedMutexLock scopedLock(getMutex());
+  if (!state_->net_vc_ || state_->shut_down_) {
+    LOG_ERROR("Intercept not operational");
+    return false;
+  }
+  if (!state_->output_.buffer_) {
+    LOG_ERROR("No output produced so far");
+    return false;
+  }
+  TSVIONBytesSet(state_->output_.vio_, state_->num_bytes_written_);
+  TSVIOReenable(state_->output_.vio_);
+  LOG_DEBUG("Response complete");
+  return true;
+}
+
+Headers &InterceptPlugin::getRequestHeaders() {
+  return state_->request_headers_;
+}
+
+bool InterceptPlugin::doRead() {
+  int avail = TSIOBufferReaderAvail(state_->input_.reader_);
+  if (avail == TS_ERROR) {
+    LOG_ERROR("Error while getting number of bytes available");
+    return false;
+  }
+  
+  int consumed = 0; // consumed is used to update the input buffers
+  if (avail > 0) {
+    int64_t num_body_bytes_in_block;
+    int64_t data_len; // size of all data (header + body) in a block
+    const char *data, *startptr;
+    TSIOBufferBlock block = TSIOBufferReaderStart(state_->input_.reader_);
+    while (block != NULL) {
+      startptr = data = TSIOBufferBlockReadStart(block, state_->input_.reader_, &data_len);
+      num_body_bytes_in_block = 0;
+      if (!state_->hdr_parsed_) {
+        const char *endptr = data + data_len;
+        if (TSHttpHdrParseReq(state_->http_parser_, state_->hdr_buf_, state_->hdr_loc_, &data,
+                              endptr) == TS_PARSE_DONE) {
+          LOG_DEBUG("Parsed header");
+          string content_length_str = state_->request_headers_.value("Content-Length");
+          if (!content_length_str.empty()) {
+            const char *start_ptr = content_length_str.data();
+            char *end_ptr;
+            int content_length = strtol(start_ptr, &end_ptr, 10 /* base */);
+            if ((errno != ERANGE) && (end_ptr != start_ptr) && (*end_ptr == '\0')) {
+              LOG_DEBUG("Got content length: %d", content_length);
+              state_->expected_body_size_ = content_length;
+            }
+            else {
+              LOG_ERROR("Invalid content length header [%s]; Assuming no content", content_length_str.c_str());
+            }
+          }
+          if (state_->request_headers_.value("Transfer-Encoding") == "chunked") {
+            // implementing a "dechunker" is non-trivial and in the real
+            // world, most browsers don't send chunked requests
+            LOG_ERROR("Support for chunked request not implemented! Assuming no body");
+          }
+          LOG_DEBUG("Expecting %d bytes of request body", state_->expected_body_size_);
+          state_->hdr_parsed_ = true;
+          // remaining data in this block is body; 'data' will be pointing to first byte of the body
+          num_body_bytes_in_block = endptr - data;
+        }
+        consume(string(startptr, data - startptr), InterceptPlugin::REQUEST_HEADER);
+      }
+      else {
+        num_body_bytes_in_block = data_len;
+      }
+      if (num_body_bytes_in_block) {
+        state_->num_body_bytes_read_ += num_body_bytes_in_block;
+        consume(string(data, num_body_bytes_in_block), InterceptPlugin::REQUEST_BODY);
+      }
+      consumed += data_len;
+      block = TSIOBufferBlockNext(block);
+    }
+  }
+  LOG_DEBUG("Consumed %d bytes from input vio", consumed);
+  TSIOBufferReaderConsume(state_->input_.reader_, consumed);
+  
+  // Modify the input VIO to reflect how much data we've completed.
+  TSVIONDoneSet(state_->input_.vio_, TSVIONDoneGet(state_->input_.vio_) + consumed);
+
+  if ((state_->hdr_parsed_) && (state_->num_body_bytes_read_ >= state_->expected_body_size_)) {
+    LOG_DEBUG("Completely read body");
+    if (state_->num_body_bytes_read_ > state_->expected_body_size_) {
+      LOG_ERROR("Read more data than specified in request");
+      // TODO: any further action required?
+    }
+    handleInputComplete();
+  }
+  else {
+    LOG_DEBUG("Reenabling input vio as %d bytes still need to be read",
+              state_->expected_body_size_ - state_->num_body_bytes_read_);
+    TSVIOReenable(state_->input_.vio_);
+  }
+  return true;
+}
+
+void InterceptPlugin::handleEvent(int abstract_event, void *edata) {
+  TSEvent event = static_cast<TSEvent>(abstract_event);
+  LOG_DEBUG("Received event %d", event);
+
+  switch (event) {
+
+  case TS_EVENT_NET_ACCEPT:
+    LOG_DEBUG("Handling net accept");
+    state_->net_vc_ = static_cast<TSVConn>(edata);
+    state_->input_.buffer_ = TSIOBufferCreate();
+    state_->input_.reader_ = TSIOBufferReaderAlloc(state_->input_.buffer_);
+    state_->input_.vio_ = TSVConnRead(state_->net_vc_, state_->cont_, state_->input_.buffer_,
+                                      INT64_MAX /* number of bytes to read - high value initially */);
+
+    state_->hdr_buf_ = TSMBufferCreate();
+    state_->hdr_loc_ = TSHttpHdrCreate(state_->hdr_buf_);
+    state_->request_headers_.reset(state_->hdr_buf_, state_->hdr_loc_);
+    TSHttpHdrTypeSet(state_->hdr_buf_, state_->hdr_loc_, TS_HTTP_TYPE_REQUEST);
+    break;
+
+  case TS_EVENT_VCONN_WRITE_READY: // nothing to do
+    LOG_DEBUG("Got write ready"); 
+    break;
+
+  case TS_EVENT_VCONN_READ_READY:
+    LOG_DEBUG("Handling read ready");  
+    if (doRead()) {
+      break;
+    }
+    // else fall through into the next shut down cases
+    LOG_ERROR("Error while reading request!");
+  case TS_EVENT_VCONN_READ_COMPLETE: // fall throughs intentional
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+  case TS_EVENT_ERROR: // erroring out, nothing more to do
+  case TS_EVENT_NET_ACCEPT_FAILED: // somebody canceled the transaction
+    if (event == TS_EVENT_ERROR) {
+      LOG_ERROR("Unknown Error!");
+    }
+    else if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+      LOG_ERROR("Got net_accept_failed!");
+    }
+    LOG_DEBUG("Shutting down");
+    if (state_->net_vc_) {
+      TSVConnClose(state_->net_vc_);
+    }
+    state_->shut_down_ = true;
+    break;
+
+  default:
+    LOG_ERROR("Unknown event %d", event);
+  }
+}
+
+namespace {
+
+int handleEvents(TSCont cont, TSEvent event, void *edata) {
+  PluginHandle *plugin_handle = static_cast<PluginHandle *>(TSContDataGet(cont));
+  ScopedSharedMutexLock scopedSharedMutexLock(plugin_handle->mutex_);
+  if (plugin_handle->plugin_) {
+    utils::internal::dispatchInterceptEvent(plugin_handle->plugin_, event, edata);
+  }
+  else {
+    // plugin is dead; cleanup
+    LOG_ERROR("Received event %d after plugin died!", event);
+    TSContDestroy(cont);
+    delete plugin_handle;
+  }
+  return 0;
+}
+
+}
diff --git a/lib/atscppapi/src/Logger.cc b/lib/atscppapi/src/Logger.cc
new file mode 100644
index 00000000..8302a3f8
--- /dev/null
+++ b/lib/atscppapi/src/Logger.cc
@@ -0,0 +1,215 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Logger.cc
+ * @warning log rolling doesn't work correctly in 3.2.x see:
+ *   https://issues.apache.org/jira/browse/TS-1813
+ *   Apply the patch in TS-1813 to correct log rolling in 3.2.x
+ */
+
+#include "atscppapi/Logger.h"
+#include <cstdarg>
+#include <vector>
+#include <cstdio>
+#include <string>
+#include <cstring>
+#include <ts/ts.h>
+#include "atscppapi/noncopyable.h"
+#include "logging_internal.h"
+
+using std::vector;
+using std::string;
+
+using atscppapi::Logger;
+
+/**
+ * @private
+ */
+struct atscppapi::LoggerState: noncopyable  {
+  std::string filename_;
+  bool add_timestamp_;
+  bool rename_file_;
+  volatile Logger::LogLevel level_;
+  bool rolling_enabled_;
+  int rolling_interval_seconds_;
+  TSTextLogObject text_log_obj_;
+  bool initialized_;
+
+  LoggerState() : add_timestamp_(false), rename_file_(false), level_(Logger::LOG_LEVEL_NO_LOG), rolling_enabled_(false),
+                  rolling_interval_seconds_(-1), text_log_obj_(NULL), initialized_(false) { };
+  ~LoggerState() { };
+};
+
+namespace {
+// Since the TSTextLog API doesn't support override the log file sizes (I will add this to TS api at some point)
+// we will use the roll size specified by default in records.config.
+const int ROLL_ON_TIME = 1; // See RollingEnabledValues in LogConfig.h
+}
+
+
+/*
+ * These have default values specified for add_timestamp and rename_file in Logger.h
+ */
+Logger::Logger() {
+  state_ = new LoggerState();
+}
+
+Logger::~Logger() {
+  if (state_->initialized_ && state_->text_log_obj_) {
+    TSTextLogObjectDestroy(state_->text_log_obj_);
+  }
+
+  delete state_;
+}
+
+/*
+ * These have default values specified for rolling_enabled and rolling_interval_seconds in Logger.h
+ */
+bool Logger::init(const string &file, bool add_timestamp, bool rename_file, LogLevel level, bool rolling_enabled, int rolling_interval_seconds) {
+  if (state_->initialized_) {
+    LOG_ERROR("Attempt to reinitialize a logger named '%s' that's already been initialized to '%s'.", file.c_str(), state_->filename_.c_str());
+    return false;
+  }
+  state_->filename_ = file;
+  state_->add_timestamp_ = add_timestamp;
+  state_->rename_file_ = rename_file;
+  state_->level_ = level;
+  state_->rolling_enabled_ = rolling_enabled;
+  state_->rolling_interval_seconds_ = rolling_interval_seconds;
+  state_->initialized_ = true; // set this to true always - we are not providing re-init() after a failed init()
+
+  int mode = 0;
+  if (state_->add_timestamp_) {
+    mode |= TS_LOG_MODE_ADD_TIMESTAMP;
+  }
+
+  if (!state_->rename_file_) {
+    mode |= TS_LOG_MODE_DO_NOT_RENAME;
+  }
+
+  TSReturnCode result = TSTextLogObjectCreate(state_->filename_.c_str(), mode, &state_->text_log_obj_);
+
+  if (result == TS_SUCCESS) {
+    TSTextLogObjectRollingEnabledSet(state_->text_log_obj_, state_->rolling_enabled_ ? ROLL_ON_TIME : 0);
+    TSTextLogObjectRollingIntervalSecSet(state_->text_log_obj_, state_->rolling_interval_seconds_);
+    LOG_DEBUG("Initialized log [%s]", state_->filename_.c_str());
+  } else {
+    state_->level_ = LOG_LEVEL_NO_LOG;
+    LOG_ERROR("Failed to initialize for log [%s]", state_->filename_.c_str());
+  }
+
+  return result == TS_SUCCESS;
+}
+
+void Logger::setLogLevel(Logger::LogLevel level) {
+  if (state_->initialized_) {
+    state_->level_ = level;
+    LOG_DEBUG("Set log level to %d for log [%s]", level, state_->filename_.c_str());
+  }
+}
+
+Logger::LogLevel Logger::getLogLevel() const {
+  if (!state_->initialized_) {
+    LOG_ERROR("Not initialized");
+  }
+  return state_->level_;
+}
+
+void Logger::setRollingIntervalSeconds(int seconds) {
+  if (state_->initialized_) {
+    state_->rolling_interval_seconds_ = seconds;
+    TSTextLogObjectRollingIntervalSecSet(state_->text_log_obj_, seconds);
+    LOG_DEBUG("Set rolling interval for log [%s] to %d seconds", state_->filename_.c_str(), seconds);
+  } else {
+    LOG_ERROR("Not initialized!");
+  }
+}
+
+int Logger::getRollingIntervalSeconds() const {
+  if (!state_->initialized_) {
+    LOG_ERROR("Not initialized");
+  }
+  return state_->rolling_interval_seconds_;
+}
+
+void Logger::setRollingEnabled(bool enabled) {
+  if (state_->initialized_) {
+    state_->rolling_enabled_ = enabled;
+    TSTextLogObjectRollingEnabledSet(state_->text_log_obj_, enabled ? ROLL_ON_TIME : 0);
+    LOG_DEBUG("Rolling for log [%s] is now %s", state_->filename_.c_str(), (enabled ? "true" : "false"));
+  } else {
+    LOG_ERROR("Not initialized!");
+  }
+}
+
+bool Logger::isRollingEnabled() const {
+  if (!state_->initialized_) {
+    LOG_ERROR("Not initialized!");
+  }
+  return state_->rolling_enabled_;
+}
+
+void Logger::flush() {
+  if (state_->initialized_) {
+    TSTextLogObjectFlush(state_->text_log_obj_);
+  } else {
+    LOG_ERROR("Not initialized!");
+  }
+}
+
+namespace {
+const int DEFAULT_BUFFER_SIZE_FOR_VARARGS = 8*1024;
+
+// We use a macro here because varargs would be a pain to forward via a helper
+// function
+#define TS_TEXT_LOG_OBJECT_WRITE(level) \
+    char buffer[DEFAULT_BUFFER_SIZE_FOR_VARARGS]; \
+    int n; \
+    va_list ap; \
+    while (true) { \
+     va_start(ap, fmt); \
+     n = vsnprintf (&buffer[0], sizeof(buffer), fmt, ap); \
+     va_end(ap); \
+     if (n > -1 && n < static_cast<int>(sizeof(buffer))) { \
+       LOG_DEBUG("logging a " level " to '%s' with length %d", state_->filename_.c_str(), n); \
+       TSTextLogObjectWrite(state_->text_log_obj_, const_cast<char*>("[" level "] %s"), buffer); \
+     } else { \
+       LOG_ERROR("Unable to log " level " message to '%s' due to size exceeding %zu bytes", state_->filename_.c_str(), sizeof(buffer)); \
+     } \
+     return; \
+    }
+
+} /* end anonymous namespace */
+
+void Logger::logDebug(const char *fmt, ...) {
+  if (state_->level_ <= LOG_LEVEL_DEBUG) {
+    TS_TEXT_LOG_OBJECT_WRITE("DEBUG");
+  }
+}
+
+void Logger::logInfo(const char *fmt, ...) {
+  if (state_->level_ <= LOG_LEVEL_INFO) {
+    TS_TEXT_LOG_OBJECT_WRITE("INFO");
+  }
+}
+
+void Logger::logError(const char *fmt, ...) {
+  if (state_->level_ <= LOG_LEVEL_ERROR) {
+    TS_TEXT_LOG_OBJECT_WRITE("ERROR");
+  }
+}
diff --git a/lib/atscppapi/src/Makefile.am b/lib/atscppapi/src/Makefile.am
new file mode 100644
index 00000000..81367444
--- /dev/null
+++ b/lib/atscppapi/src/Makefile.am
@@ -0,0 +1,85 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+AM_CXXFLAGS = -Iinclude $(TS_PLUGIN_CPPFLAGS)
+
+# build the library
+lib_LTLIBRARIES = libatscppapi.la
+libatscppapi_la_LDFLAGS=-lz -lpthread -version-info @TS_LIBTOOL_VERSION@
+
+libatscppapi_la_SOURCES = GlobalPlugin.cc \
+			  Plugin.cc \
+			  utils.cc \
+			  utils_internal.cc \
+			  Transaction.cc \
+			  TransactionPlugin.cc \
+			  Headers.cc \
+			  Request.cc \
+			  CaseInsensitiveStringComparator.cc \
+			  ClientRequest.cc \
+			  Url.cc \
+			  HttpVersion.cc \
+			  HttpMethod.cc \
+			  Response.cc \
+			  TransformationPlugin.cc \
+			  Logger.cc \
+			  Stat.cc \
+			  AsyncHttpFetch.cc \
+			  RemapPlugin.cc \
+			  GzipDeflateTransformation.cc \
+			  GzipInflateTransformation.cc \
+			  AsyncTimer.cc \
+                          InterceptPlugin.cc
+
+library_includedir=$(includedir)/atscppapi
+base_include_folder = include/atscppapi/
+
+library_include_HEADERS = $(base_include_folder)/GlobalPlugin.h \
+			  $(base_include_folder)/Plugin.h \
+			  $(base_include_folder)/PluginInit.h \
+			  $(base_include_folder)/Transaction.h \
+			  $(base_include_folder)/TransactionPlugin.h \
+			  $(base_include_folder)/HttpMethod.h \
+			  $(base_include_folder)/HttpStatus.h \
+			  $(base_include_folder)/HttpVersion.h \
+			  $(base_include_folder)/Headers.h \
+			  $(base_include_folder)/Request.h \
+			  $(base_include_folder)/CaseInsensitiveStringComparator.h \
+			  $(base_include_folder)/ClientRequest.h \
+	 		  $(base_include_folder)/Url.h \
+		 	  $(base_include_folder)/Response.h \
+			  $(base_include_folder)/utils.h \
+			  $(base_include_folder)/TransformationPlugin.h \
+			  $(base_include_folder)/Logger.h \
+			  $(base_include_folder)/noncopyable.h \
+			  $(base_include_folder)/Stat.h \
+			  $(base_include_folder)/Mutex.h \
+			  $(base_include_folder)/RemapPlugin.h \
+			  $(base_include_folder)/shared_ptr.h \
+			  $(base_include_folder)/Async.h \
+			  $(base_include_folder)/AsyncHttpFetch.h \
+			  $(base_include_folder)/GzipDeflateTransformation.h \
+			  $(base_include_folder)/GzipInflateTransformation.h \
+			  $(base_include_folder)/AsyncTimer.h \
+			  $(base_include_folder)/InterceptPlugin.h
diff --git a/lib/atscppapi/src/Makefile.in b/lib/atscppapi/src/Makefile.in
new file mode 100644
index 00000000..1495e12e
--- /dev/null
+++ b/lib/atscppapi/src/Makefile.in
@@ -0,0 +1,1015 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = lib/atscppapi/src
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp $(library_include_HEADERS)
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
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+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
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+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(libdir)" \
+	"$(DESTDIR)$(library_includedir)"
+LTLIBRARIES = $(lib_LTLIBRARIES)
+libatscppapi_la_LIBADD =
+am_libatscppapi_la_OBJECTS = GlobalPlugin.lo Plugin.lo utils.lo \
+	utils_internal.lo Transaction.lo TransactionPlugin.lo \
+	Headers.lo Request.lo CaseInsensitiveStringComparator.lo \
+	ClientRequest.lo Url.lo HttpVersion.lo HttpMethod.lo \
+	Response.lo TransformationPlugin.lo Logger.lo Stat.lo \
+	AsyncHttpFetch.lo RemapPlugin.lo GzipDeflateTransformation.lo \
+	GzipInflateTransformation.lo AsyncTimer.lo InterceptPlugin.lo
+libatscppapi_la_OBJECTS = $(am_libatscppapi_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+libatscppapi_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(libatscppapi_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(libatscppapi_la_SOURCES)
+DIST_SOURCES = $(libatscppapi_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+HEADERS = $(library_include_HEADERS)
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+pkgdatadir = @pkgdatadir@
+pkglibdir = @pkglibdir@
+pkglibexecdir = @pkglibexecdir@
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_CFLAGS = @AM_CFLAGS@
+AM_CXXFLAGS = -Iinclude $(TS_PLUGIN_CPPFLAGS)
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+API_DEFS = @API_DEFS@
+AR = @AR@
+ASCPP = @ASCPP@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BOOST_CPPFLAGS = @BOOST_CPPFLAGS@
+BOOST_LDFLAGS = @BOOST_LDFLAGS@
+CC = @CC@
+CCACHE = @CCACHE@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CURL_CFLAGS = @CURL_CFLAGS@
+CURL_CONFIG = @CURL_CONFIG@
+CURL_LIBS = @CURL_LIBS@
+CURSES_LIB = @CURSES_LIB@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+EXPAT_LDFLAGS = @EXPAT_LDFLAGS@
+EXTRA_CC_LDFLAGS = @EXTRA_CC_LDFLAGS@
+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
+FGREP = @FGREP@
+FLEX_CFLAGS = @FLEX_CFLAGS@
+GEOIP_LIBS = @GEOIP_LIBS@
+GREP = @GREP@
+HOST_GUESS = @HOST_GUESS@
+HWLOC_CFLAGS = @HWLOC_CFLAGS@
+HWLOC_LIBS = @HWLOC_LIBS@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# build the library
+lib_LTLIBRARIES = libatscppapi.la
+libatscppapi_la_LDFLAGS = -lz -lpthread -version-info @TS_LIBTOOL_VERSION@
+libatscppapi_la_SOURCES = GlobalPlugin.cc \
+			  Plugin.cc \
+			  utils.cc \
+			  utils_internal.cc \
+			  Transaction.cc \
+			  TransactionPlugin.cc \
+			  Headers.cc \
+			  Request.cc \
+			  CaseInsensitiveStringComparator.cc \
+			  ClientRequest.cc \
+			  Url.cc \
+			  HttpVersion.cc \
+			  HttpMethod.cc \
+			  Response.cc \
+			  TransformationPlugin.cc \
+			  Logger.cc \
+			  Stat.cc \
+			  AsyncHttpFetch.cc \
+			  RemapPlugin.cc \
+			  GzipDeflateTransformation.cc \
+			  GzipInflateTransformation.cc \
+			  AsyncTimer.cc \
+                          InterceptPlugin.cc
+
+library_includedir = $(includedir)/atscppapi
+base_include_folder = include/atscppapi/
+library_include_HEADERS = $(base_include_folder)/GlobalPlugin.h \
+			  $(base_include_folder)/Plugin.h \
+			  $(base_include_folder)/PluginInit.h \
+			  $(base_include_folder)/Transaction.h \
+			  $(base_include_folder)/TransactionPlugin.h \
+			  $(base_include_folder)/HttpMethod.h \
+			  $(base_include_folder)/HttpStatus.h \
+			  $(base_include_folder)/HttpVersion.h \
+			  $(base_include_folder)/Headers.h \
+			  $(base_include_folder)/Request.h \
+			  $(base_include_folder)/CaseInsensitiveStringComparator.h \
+			  $(base_include_folder)/ClientRequest.h \
+	 		  $(base_include_folder)/Url.h \
+		 	  $(base_include_folder)/Response.h \
+			  $(base_include_folder)/utils.h \
+			  $(base_include_folder)/TransformationPlugin.h \
+			  $(base_include_folder)/Logger.h \
+			  $(base_include_folder)/noncopyable.h \
+			  $(base_include_folder)/Stat.h \
+			  $(base_include_folder)/Mutex.h \
+			  $(base_include_folder)/RemapPlugin.h \
+			  $(base_include_folder)/shared_ptr.h \
+			  $(base_include_folder)/Async.h \
+			  $(base_include_folder)/AsyncHttpFetch.h \
+			  $(base_include_folder)/GzipDeflateTransformation.h \
+			  $(base_include_folder)/GzipInflateTransformation.h \
+			  $(base_include_folder)/AsyncTimer.h \
+			  $(base_include_folder)/InterceptPlugin.h
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/atscppapi/src/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/atscppapi/src/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \
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+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
+	}
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+	for p in $$list; do \
+	  $(am__strip_dir) \
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+	done
+
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+	@list='$(lib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
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+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+libatscppapi.la: $(libatscppapi_la_OBJECTS) $(libatscppapi_la_DEPENDENCIES) $(EXTRA_libatscppapi_la_DEPENDENCIES) 
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+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
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+
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/RemapPlugin.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Request.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Response.Plo@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Transaction.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/TransactionPlugin.Plo@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Url.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils_internal.Plo@am__quote@
+
+.cc.o:
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+	-rm -rf .libs _libs
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+	@$(NORMAL_INSTALL)
+	@list='$(library_include_HEADERS)'; test -n "$(library_includedir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(library_includedir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(library_includedir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(library_includedir)'"; \
+	  $(INSTALL_HEADER) $$files "$(DESTDIR)$(library_includedir)" || exit $$?; \
+	done
+
+uninstall-library_includeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(library_include_HEADERS)'; test -n "$(library_includedir)" || list=; \
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+	$(am__define_uniq_tagged_files); \
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+	      $$unique; \
+	  fi; \
+	fi
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+
+distdir: $(DISTFILES)
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+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
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+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
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+
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
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+	ctags-am distclean distclean-compile distclean-generic \
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/atscppapi/src/Plugin.cc b/lib/atscppapi/src/Plugin.cc
new file mode 100644
index 00000000..dd8d6033
--- /dev/null
+++ b/lib/atscppapi/src/Plugin.cc
@@ -0,0 +1,31 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Plugin.cc
+ */
+#include "atscppapi/Plugin.h"
+
+const std::string atscppapi::HOOK_TYPE_STRINGS[] = { std::string("HOOK_READ_REQUEST_HEADERS_PRE_REMAP"),
+                                                     std::string("HOOK_READ_REQUEST_HEADERS_POST_REMAP"),
+                                                     std::string("HOOK_SEND_REQUEST_HEADERS"),
+                                                     std::string("HOOK_READ_RESPONSE_HEADERS"),
+                                                     std::string("HOOK_SEND_RESPONSE_HEADERS"),
+                                                     std::string("HOOK_OS_DNS")
+                                                      };
+
diff --git a/lib/atscppapi/src/RemapPlugin.cc b/lib/atscppapi/src/RemapPlugin.cc
new file mode 100644
index 00000000..9ff07b6f
--- /dev/null
+++ b/lib/atscppapi/src/RemapPlugin.cc
@@ -0,0 +1,66 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file RemapPlugin.cc
+ */
+
+#include "atscppapi/RemapPlugin.h"
+#include "logging_internal.h"
+#include "utils_internal.h"
+#include <assert.h>
+#include <ts/remap.h>
+
+using namespace atscppapi;
+
+TSRemapStatus TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo* rri) {
+  RemapPlugin *remap_plugin = static_cast<RemapPlugin *>(ih);
+  Url map_from_url(rri->requestBufp, rri->mapFromUrl), map_to_url(rri->requestBufp, rri->mapToUrl);
+  Transaction &transaction = utils::internal::getTransaction(rh);
+  bool redirect = false;
+  RemapPlugin::Result result = remap_plugin->doRemap(map_from_url, map_to_url, transaction, redirect);
+  rri->redirect = redirect ? 1 : 0;
+  switch (result) {
+  case RemapPlugin::RESULT_ERROR:
+    return TSREMAP_ERROR;
+  case RemapPlugin::RESULT_NO_REMAP:
+    return TSREMAP_NO_REMAP;
+  case RemapPlugin::RESULT_DID_REMAP:
+    return TSREMAP_DID_REMAP;
+  case RemapPlugin::RESULT_NO_REMAP_STOP:
+    return TSREMAP_NO_REMAP_STOP;
+  case RemapPlugin::RESULT_DID_REMAP_STOP:
+    return TSREMAP_DID_REMAP_STOP;
+  default:
+    assert(!"Unhandled result");
+    return TSREMAP_ERROR;
+  }
+}
+
+void TSRemapDeleteInstance(void *ih) {
+  RemapPlugin *remap_plugin = static_cast<RemapPlugin *>(ih);
+  delete remap_plugin;
+}
+
+TSReturnCode TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size) {
+  return TS_SUCCESS;
+}
+
+RemapPlugin::RemapPlugin(void **instance_handle) {
+  *instance_handle = static_cast<void *>(this);
+}
+
diff --git a/lib/atscppapi/src/Request.cc b/lib/atscppapi/src/Request.cc
new file mode 100644
index 00000000..f8856907
--- /dev/null
+++ b/lib/atscppapi/src/Request.cc
@@ -0,0 +1,168 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Request.cc
+ */
+
+#include "atscppapi/Request.h"
+#include <ts/ts.h>
+#include "atscppapi/noncopyable.h"
+#include "utils_internal.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+using std::string;
+
+/**
+ * @private
+ */
+struct atscppapi::RequestState: noncopyable  {
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  TSMLoc url_loc_;
+  Url url_;
+  Headers headers_;
+  /* method and version are stored here for the case of an unbound request */
+  HttpMethod method_;
+  HttpVersion version_;
+  bool destroy_buf_;
+  RequestState() : hdr_buf_(NULL), hdr_loc_(NULL), url_loc_(NULL), method_(HTTP_METHOD_UNKNOWN),
+                   version_(HTTP_VERSION_UNKNOWN), destroy_buf_(false) { }
+};
+
+Request::Request() {
+  state_ = new RequestState();
+}
+
+Request::Request(void *hdr_buf, void *hdr_loc) {
+  state_ = new RequestState();
+  init(hdr_buf, hdr_loc);
+  LOG_DEBUG("Initialized request object %p with hdr_buf=%p and hdr_loc=%p", this, hdr_buf, hdr_loc);
+}
+
+Request::Request(const string &url_str, HttpMethod method, HttpVersion version) {
+  state_ = new RequestState();
+  state_->method_ = method;
+  state_->version_ = version;
+  state_->destroy_buf_ = true;
+  state_->hdr_buf_ = TSMBufferCreate();
+  if (TSUrlCreate(state_->hdr_buf_, &state_->url_loc_) == TS_SUCCESS) {
+    const char *url_str_start = url_str.c_str();
+    const char *url_str_end = url_str_start + url_str.size();
+    if (TSUrlParse(state_->hdr_buf_, state_->url_loc_, &url_str_start, url_str_end) != TS_PARSE_DONE) {
+      LOG_ERROR("[%s] does not represent a valid url", url_str.c_str());
+    }
+    else {
+      state_->url_.init(state_->hdr_buf_, state_->url_loc_);
+    }
+  }
+  else {
+    state_->url_loc_ = NULL;
+    LOG_ERROR("Could not create URL field; hdr_buf %p", state_->hdr_buf_); 
+  }
+}
+
+void Request::init(void *hdr_buf, void *hdr_loc) {
+  if (state_->hdr_buf_ || state_->hdr_loc_) {
+    LOG_ERROR("Reinitialization; (hdr_buf, hdr_loc) current(%p, %p), attempted(%p, %p)", state_->hdr_buf_,
+              state_->hdr_loc_, hdr_buf, hdr_loc);
+    return;
+  }
+  state_->hdr_buf_ = static_cast<TSMBuffer>(hdr_buf);
+  state_->hdr_loc_ = static_cast<TSMLoc>(hdr_loc);
+  state_->headers_.reset(state_->hdr_buf_, state_->hdr_loc_);
+  state_->url_loc_ = NULL;
+  TSHttpHdrUrlGet(state_->hdr_buf_, state_->hdr_loc_, &state_->url_loc_);
+  if (!state_->url_loc_) {
+    LOG_ERROR("TSHttpHdrUrlGet returned a null url loc, hdr_buf=%p, hdr_loc=%p", state_->hdr_buf_, state_->hdr_loc_);
+  }
+  else {
+    state_->url_.init(state_->hdr_buf_, state_->url_loc_);
+    LOG_DEBUG("Initialized url");
+  }
+}
+
+HttpMethod Request::getMethod() const {
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    int method_len;
+    const char *method_str = TSHttpHdrMethodGet(state_->hdr_buf_, state_->hdr_loc_, &method_len);
+    if (method_str && method_len) {
+      if (method_str == TS_HTTP_METHOD_GET) {
+        state_->method_ = HTTP_METHOD_GET;
+      } else if (method_str == TS_HTTP_METHOD_POST) {
+        state_->method_ = HTTP_METHOD_POST;
+      } else if (method_str == TS_HTTP_METHOD_HEAD) {
+        state_->method_ = HTTP_METHOD_HEAD;
+      } else if (method_str == TS_HTTP_METHOD_CONNECT) {
+        state_->method_ = HTTP_METHOD_CONNECT;
+      } else if (method_str == TS_HTTP_METHOD_DELETE) {
+        state_->method_ = HTTP_METHOD_DELETE;
+      } else if (method_str == TS_HTTP_METHOD_ICP_QUERY) {
+        state_->method_ = HTTP_METHOD_ICP_QUERY;
+      } else if (method_str == TS_HTTP_METHOD_OPTIONS) {
+        state_->method_ = HTTP_METHOD_OPTIONS;
+      } else if (method_str == TS_HTTP_METHOD_PURGE) {
+        state_->method_ = HTTP_METHOD_PURGE;
+      } else if (method_str == TS_HTTP_METHOD_PUT) {
+        state_->method_ = HTTP_METHOD_PUT;
+      } else if (method_str == TS_HTTP_METHOD_TRACE) {
+        state_->method_ = HTTP_METHOD_TRACE;
+      }
+      LOG_DEBUG("Request method=%d [%s] on hdr_buf=%p, hdr_loc=%p",
+          state_->method_, HTTP_METHOD_STRINGS[state_->method_].c_str(), state_->hdr_buf_, state_->hdr_loc_);
+    } else {
+      LOG_ERROR("TSHttpHdrMethodGet returned null string or it was zero length, hdr_buf=%p, hdr_loc=%p, method str=%p, method_len=%d",
+          state_->hdr_buf_, state_->hdr_loc_, method_str, method_len);
+    }
+  }
+  return state_->method_;
+}
+
+Url &Request::getUrl() {
+  return state_->url_;
+}
+
+atscppapi::HttpVersion Request::getVersion() const {
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    state_->version_ = utils::internal::getHttpVersion(state_->hdr_buf_, state_->hdr_loc_);
+    LOG_DEBUG("Request version=%d [%s] on hdr_buf=%p, hdr_loc=%p",
+        state_->version_, HTTP_VERSION_STRINGS[state_->version_].c_str(), state_->hdr_buf_, state_->hdr_loc_);
+  }
+  return state_->version_;
+}
+
+atscppapi::Headers &Request::getHeaders() const {
+  return state_->headers_;
+}
+
+Request::~Request() {
+  if (state_->url_loc_) {
+    if (state_->destroy_buf_) {
+      // usually, hdr_loc is the parent of url_loc, but we created this url_loc "directly" in hdr_buf, 
+      // so we use null as parent loc in this case
+      TSMLoc null_parent_loc = NULL;
+      TSHandleMLocRelease(state_->hdr_buf_, null_parent_loc, state_->url_loc_);
+      TSMBufferDestroy(state_->hdr_buf_);
+    } else {
+      LOG_DEBUG("Destroying request object on hdr_buf=%p, hdr_loc=%p, url_loc=%p", state_->hdr_buf_,
+                state_->hdr_loc_, state_->url_loc_);
+      TSHandleMLocRelease(state_->hdr_buf_, state_->hdr_loc_, state_->url_loc_);
+    }
+  }
+  delete state_;
+}
diff --git a/lib/atscppapi/src/Response.cc b/lib/atscppapi/src/Response.cc
new file mode 100644
index 00000000..2ec042c3
--- /dev/null
+++ b/lib/atscppapi/src/Response.cc
@@ -0,0 +1,114 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Response.cc
+ */
+#include "atscppapi/Response.h"
+#include "atscppapi/noncopyable.h"
+#include "utils_internal.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+using std::string;
+
+namespace atscppapi {
+
+/**
+ * @private
+ */
+struct ResponseState: noncopyable {
+  TSMBuffer hdr_buf_;
+  TSMLoc hdr_loc_;
+  Headers headers_;
+  ResponseState() : hdr_buf_(NULL), hdr_loc_(NULL) { }
+};
+
+}
+
+Response::Response() {
+  state_ = new ResponseState();
+//  state_->headers_.setType(Headers::TYPE_RESPONSE);
+}
+
+void Response::init(void *hdr_buf, void *hdr_loc) {
+  state_->hdr_buf_ = static_cast<TSMBuffer>(hdr_buf);
+  state_->hdr_loc_ = static_cast<TSMLoc>(hdr_loc);
+  state_->headers_.reset(state_->hdr_buf_, state_->hdr_loc_);
+  LOG_DEBUG("Initializing response %p with hdr_buf=%p and hdr_loc=%p", this, state_->hdr_buf_, state_->hdr_loc_);
+}
+
+HttpVersion Response::getVersion() const {
+  HttpVersion ret_val = HTTP_VERSION_UNKNOWN;
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    ret_val = utils::internal::getHttpVersion(state_->hdr_buf_, state_->hdr_loc_);
+    LOG_DEBUG("Initializing response version to %d [%s] with hdr_buf=%p and hdr_loc=%p",
+        ret_val, HTTP_VERSION_STRINGS[ret_val].c_str(), state_->hdr_buf_, state_->hdr_loc_);
+  }
+  return ret_val;
+}
+
+HttpStatus Response::getStatusCode() const {
+  HttpStatus ret_val = HTTP_STATUS_UNKNOWN;
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    ret_val = static_cast<HttpStatus>(TSHttpHdrStatusGet(state_->hdr_buf_, state_->hdr_loc_));
+    LOG_DEBUG("Initializing response status code to %d with hdr_buf=%p and hdr_loc=%p",
+        ret_val, state_->hdr_buf_, state_->hdr_loc_);
+  }
+  return ret_val;
+}
+
+void Response::setStatusCode(HttpStatus code) {
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    TSHttpHdrStatusSet(state_->hdr_buf_, state_->hdr_loc_, static_cast<TSHttpStatus>(code));
+    LOG_DEBUG("Changing response status code to %d with hdr_buf=%p and hdr_loc=%p",
+        code, state_->hdr_buf_, state_->hdr_loc_);
+  }
+}
+
+string Response::getReasonPhrase() const {
+  string ret_str;
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    int length;
+    const char *str = TSHttpHdrReasonGet(state_->hdr_buf_, state_->hdr_loc_, &length);
+    if (str && length) {
+      ret_str.assign(str, length);
+      LOG_DEBUG("Initializing response reason phrase to '%s' with hdr_buf=%p and hdr_loc=%p",
+          ret_str.c_str(), state_->hdr_buf_, state_->hdr_loc_);
+    } else {
+      LOG_ERROR("TSHttpHdrReasonGet returned null string or zero length. str=%p, length=%d, hdr_buf=%p, hdr_loc=%p",
+          str, length, state_->hdr_buf_, state_->hdr_loc_);
+    }
+  }
+  return ret_str; // if not initialized, we will just return an empty string
+}
+
+void Response::setReasonPhrase(const string &phrase) {
+  if (state_->hdr_buf_ && state_->hdr_loc_) {
+    TSHttpHdrReasonSet(state_->hdr_buf_, state_->hdr_loc_, phrase.c_str(), phrase.length());
+    LOG_DEBUG("Changing response reason phrase to '%s' with hdr_buf=%p and hdr_loc=%p",
+        phrase.c_str(), state_->hdr_buf_, state_->hdr_loc_);
+  }
+}
+
+Headers &Response::getHeaders() const {
+  return state_->headers_;  // if not initialized, we will just return an empty object
+}
+
+Response::~Response() {
+  delete state_;
+}
diff --git a/lib/atscppapi/src/Stat.cc b/lib/atscppapi/src/Stat.cc
new file mode 100644
index 00000000..b10082b5
--- /dev/null
+++ b/lib/atscppapi/src/Stat.cc
@@ -0,0 +1,96 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Stat.cc
+ */
+
+#include "atscppapi/Stat.h"
+#include <string>
+#include <stdint.h>
+#include <ts/ts.h>
+#include "logging_internal.h"
+
+using namespace atscppapi;
+using std::string;
+
+Stat::Stat() : stat_id_(TS_ERROR) {
+// ATS Guarantees that stat ids will always be > 0. So we can use stat_id_ > 0 to
+// verify that this stat has been properly initialized.
+}
+
+Stat::~Stat() {
+// we really dont have any cleanup since ATS doesn't expose a method to destroy stats
+}
+
+bool Stat::init(string name, Stat::SyncType type, bool persistent) {
+  // TS_RECORDDATATYPE_INT is the only type currently supported
+  // so that's why this api doesn't expose other types, TSStatSync is equivalent to StatSyncType
+  stat_id_ = TSStatCreate(name.c_str(), TS_RECORDDATATYPE_INT, persistent ?  TS_STAT_PERSISTENT : TS_STAT_NON_PERSISTENT, static_cast<TSStatSync>(type));
+  if (stat_id_ != TS_ERROR) {
+    LOG_DEBUG("Created new stat named '%s' with stat_id = %d", name.c_str(), stat_id_);
+  } else {
+    LOG_ERROR("Unable to create stat named '%s'.", name.c_str());
+  }
+
+  if (stat_id_ == TS_ERROR) {
+    return false;
+  }
+
+  if (!persistent) {
+    set(0);
+  }
+
+  return true;
+}
+
+void Stat::set(int64_t value) {
+  if (stat_id_ == TS_ERROR) {
+    return;
+  }
+
+  TSStatIntSet(stat_id_, value);
+}
+
+int64_t Stat::get() const {
+  if (stat_id_ == TS_ERROR) {
+    return 0;
+  }
+
+  return TSStatIntGet(stat_id_);
+}
+
+void Stat::increment(int64_t amount) {
+  if (stat_id_ == TS_ERROR) {
+    return;
+  }
+
+  TSStatIntIncrement(stat_id_, amount);
+}
+
+void Stat::decrement(int64_t amount) {
+  if (stat_id_ == TS_ERROR) {
+    return;
+  }
+
+  TSStatIntDecrement(stat_id_, amount);
+}
+
+
+
+
+
diff --git a/lib/atscppapi/src/Transaction.cc b/lib/atscppapi/src/Transaction.cc
new file mode 100644
index 00000000..2470e7f9
--- /dev/null
+++ b/lib/atscppapi/src/Transaction.cc
@@ -0,0 +1,312 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Transaction.cc
+ */
+
+#include "atscppapi/Transaction.h"
+#include <cstdlib>
+#include <cstring>
+#include <map>
+#include <string>
+#include <ts/ts.h>
+#include "atscppapi/shared_ptr.h"
+#include "logging_internal.h"
+#include "utils_internal.h"
+#include "atscppapi/noncopyable.h"
+
+using std::map;
+using std::string;
+using namespace atscppapi;
+
+/**
+ * @private
+ */
+struct atscppapi::TransactionState: noncopyable {
+  TSHttpTxn txn_;
+  std::list<TransactionPlugin *> plugins_;
+  TSMBuffer client_request_hdr_buf_;
+  TSMLoc client_request_hdr_loc_;
+  ClientRequest client_request_;
+  TSMBuffer server_request_hdr_buf_;
+  TSMLoc server_request_hdr_loc_;
+  Request server_request_;
+  TSMBuffer server_response_hdr_buf_;
+  TSMLoc server_response_hdr_loc_;
+  Response server_response_;
+  TSMBuffer client_response_hdr_buf_;
+  TSMLoc client_response_hdr_loc_;
+  Response client_response_;
+  map<string, shared_ptr<Transaction::ContextValue> > context_values_;
+
+  TransactionState(TSHttpTxn txn, TSMBuffer client_request_hdr_buf, TSMLoc client_request_hdr_loc)
+    : txn_(txn), client_request_hdr_buf_(client_request_hdr_buf), client_request_hdr_loc_(client_request_hdr_loc),
+      client_request_(txn, client_request_hdr_buf, client_request_hdr_loc),
+      server_request_hdr_buf_(NULL), server_request_hdr_loc_(NULL),
+      server_response_hdr_buf_(NULL), server_response_hdr_loc_(NULL),
+      client_response_hdr_buf_(NULL), client_response_hdr_loc_(NULL)
+  { };
+};
+
+Transaction::Transaction(void *raw_txn) {
+  TSHttpTxn txn = static_cast<TSHttpTxn>(raw_txn);
+  TSMBuffer hdr_buf;
+  TSMLoc hdr_loc;
+  TSHttpTxnClientReqGet(txn, &hdr_buf, &hdr_loc);
+  if (!hdr_buf || !hdr_loc) {
+    LOG_ERROR("TSHttpTxnClientReqGet tshttptxn=%p returned a null hdr_buf=%p or hdr_loc=%p.", txn, hdr_buf, hdr_loc);
+  }
+
+  state_ = new TransactionState(txn, hdr_buf, hdr_loc);
+  LOG_DEBUG("Transaction tshttptxn=%p constructing Transaction object %p, client req hdr_buf=%p, client req hdr_loc=%p",
+      txn, this, hdr_buf, hdr_loc);
+}
+
+Transaction::~Transaction() {
+  LOG_DEBUG("Transaction tshttptxn=%p destroying Transaction object %p", state_->txn_, this);
+  static const TSMLoc NULL_PARENT_LOC = NULL;
+  TSHandleMLocRelease(state_->client_request_hdr_buf_, NULL_PARENT_LOC, state_->client_request_hdr_loc_);
+  if (state_->server_request_hdr_buf_ && state_->server_request_hdr_loc_) {
+    LOG_DEBUG("Releasing server request");
+    TSHandleMLocRelease(state_->server_request_hdr_buf_, NULL_PARENT_LOC, state_->server_request_hdr_loc_);
+  }
+  if (state_->server_response_hdr_buf_ && state_->server_response_hdr_loc_) {
+    LOG_DEBUG("Releasing server response");
+    TSHandleMLocRelease(state_->server_response_hdr_buf_, NULL_PARENT_LOC, state_->server_response_hdr_loc_);
+  }
+  if (state_->client_response_hdr_buf_ && state_->client_response_hdr_loc_) {
+    LOG_DEBUG("Releasing client response");
+    TSHandleMLocRelease(state_->client_response_hdr_buf_, NULL_PARENT_LOC, state_->client_response_hdr_loc_);
+  }
+  delete state_;
+}
+
+void Transaction::resume() {
+  TSHttpTxnReenable(state_->txn_, static_cast<TSEvent>(TS_EVENT_HTTP_CONTINUE));
+}
+
+void Transaction::error() {
+  LOG_DEBUG("Transaction tshttptxn=%p reenabling to error state", state_->txn_);
+  TSHttpTxnReenable(state_->txn_, static_cast<TSEvent>(TS_EVENT_HTTP_ERROR));
+}
+
+void Transaction::error(const std::string &page) {
+  setErrorBody(page);
+  error(); // finally, reenable with HTTP_ERROR
+}
+
+void Transaction::setErrorBody(const std::string &page) {
+  LOG_DEBUG("Transaction tshttptxn=%p setting error body page: %s", state_->txn_, page.c_str());
+  TSHttpTxnErrorBodySet(state_->txn_, TSstrdup(page.c_str()), page.length(), NULL); // Default to text/html
+}
+
+bool Transaction::isInternalRequest() const {
+  return TSHttpIsInternalRequest(state_->txn_) == TS_SUCCESS;
+}
+
+void *Transaction::getAtsHandle() const {
+  return static_cast<void *>(state_->txn_);
+}
+
+const std::list<atscppapi::TransactionPlugin *> &Transaction::getPlugins() const {
+  return state_->plugins_;
+}
+
+void Transaction::addPlugin(TransactionPlugin *plugin) {
+  LOG_DEBUG("Transaction tshttptxn=%p registering new TransactionPlugin %p.", state_->txn_, plugin);
+  state_->plugins_.push_back(plugin);
+}
+
+shared_ptr<Transaction::ContextValue> Transaction::getContextValue(const std::string &key) {
+  shared_ptr<Transaction::ContextValue> return_context_value;
+  map<string, shared_ptr<Transaction::ContextValue> >::iterator iter = state_->context_values_.find(key);
+  if (iter != state_->context_values_.end()) {
+    return_context_value = iter->second;
+  }
+
+  return return_context_value;
+}
+
+void Transaction::setContextValue(const std::string &key, shared_ptr<Transaction::ContextValue> value) {
+  state_->context_values_[key] = value;
+}
+
+ClientRequest &Transaction::getClientRequest() {
+  return state_->client_request_;
+}
+
+Request &Transaction::getServerRequest() {
+  return state_->server_request_;
+}
+
+Response &Transaction::getServerResponse() {
+  return state_->server_response_;
+}
+
+Response &Transaction::getClientResponse() {
+  return state_->client_response_;
+}
+
+string Transaction::getEffectiveUrl() {
+	string ret_val;
+	int length = 0;
+	char *buf = TSHttpTxnEffectiveUrlStringGet(state_->txn_, &length);
+	if (buf && length) {
+		ret_val.assign(buf, length);
+	}
+
+	if (buf)
+		TSfree(buf);
+
+	return ret_val;
+}
+
+bool Transaction::setCacheUrl(const string &cache_url) {
+	TSReturnCode res = TSCacheUrlSet(state_->txn_, cache_url.c_str(), cache_url.length());
+    return (res == TS_SUCCESS);
+}
+
+const sockaddr *Transaction::getIncomingAddress() const {
+  return TSHttpTxnIncomingAddrGet(state_->txn_);
+}
+
+const sockaddr *Transaction::getClientAddress() const {
+  return TSHttpTxnClientAddrGet(state_->txn_);
+}
+
+const sockaddr *Transaction::getNextHopAddress() const {
+  return TSHttpTxnNextHopAddrGet(state_->txn_);
+}
+
+const sockaddr *Transaction::getServerAddress() const {
+  return TSHttpTxnServerAddrGet(state_->txn_);
+}
+
+bool Transaction::setServerAddress(const sockaddr *sockaddress) {
+  return TSHttpTxnServerAddrSet(state_->txn_,sockaddress) == TS_SUCCESS;
+}
+
+bool Transaction::setIncomingPort(uint16_t port) {
+  TSHttpTxnClientIncomingPortSet(state_->txn_, port);
+  return true; // In reality TSHttpTxnClientIncomingPortSet should return SUCCESS or ERROR.
+}
+
+/*
+ * Note: The following methods cannot be attached to a Response
+ * object because that would require the Response object to
+ * know that it's a server or client response because of the
+ * TS C api which is TSHttpTxnServerRespBodyBytesGet.
+ */
+size_t Transaction::getServerResponseBodySize() {
+  return static_cast<size_t>(TSHttpTxnServerRespBodyBytesGet(state_->txn_));
+}
+
+size_t Transaction::getServerResponseHeaderSize() {
+  return static_cast<size_t>(TSHttpTxnServerRespHdrBytesGet(state_->txn_));
+}
+
+size_t Transaction::getClientResponseBodySize() {
+  return static_cast<size_t>(TSHttpTxnClientRespBodyBytesGet(state_->txn_));
+}
+
+size_t Transaction::getClientResponseHeaderSize() {
+  return static_cast<size_t>(TSHttpTxnClientRespHdrBytesGet(state_->txn_));
+}
+
+void Transaction::setTimeout(Transaction::TimeoutType type, int time_ms) {
+  switch (type) {
+    case TIMEOUT_DNS:
+      TSHttpTxnDNSTimeoutSet(state_->txn_, time_ms);
+      break;
+    case TIMEOUT_CONNECT:
+      TSHttpTxnConnectTimeoutSet(state_->txn_, time_ms);
+      break;
+    case TIMEOUT_NO_ACTIVITY:
+      TSHttpTxnNoActivityTimeoutSet(state_->txn_, time_ms);
+      break;
+    case TIMEOUT_ACTIVE:
+      TSHttpTxnActiveTimeoutSet(state_->txn_, time_ms);
+      break;
+    default:
+      break;
+  }
+}
+
+namespace {
+
+/**
+ * initializeHandles is a convinience functor that takes a pointer to a TS Function that
+ * will return the TSMBuffer and TSMLoc for a given server request/response or client/request response
+ *
+ * @param constructor takes a function pointer of type GetterFunction
+ * @param txn a TSHttpTxn
+ * @param hdr_buf the address where the hdr buf will be stored
+ * @param hdr_loc the address where the mem loc will be storeds
+ * @param name name of the entity - used for logging
+ */
+class initializeHandles {
+public:
+  typedef TSReturnCode (*GetterFunction)(TSHttpTxn, TSMBuffer *, TSMLoc *);
+  initializeHandles(GetterFunction getter) : getter_(getter) { }
+  bool operator()(TSHttpTxn txn, TSMBuffer &hdr_buf, TSMLoc &hdr_loc, const char *handles_name) {
+    if (!hdr_buf && !hdr_loc) {
+      if (getter_(txn, &hdr_buf, &hdr_loc) == TS_SUCCESS) {
+        return true;
+      }
+      else {
+        LOG_ERROR("Could not get %s", handles_name);
+      }
+    }
+    else {
+      LOG_ERROR("%s already initialized", handles_name);
+    }
+    return false;
+  }
+private:
+  GetterFunction getter_;
+};
+
+} // anonymous namespace
+
+void Transaction::initServerRequest() {
+  static initializeHandles initializeServerRequestHandles(TSHttpTxnServerReqGet);
+  if (initializeServerRequestHandles(state_->txn_, state_->server_request_hdr_buf_,
+                                     state_->server_request_hdr_loc_, "server request")) {
+    LOG_DEBUG("Initializing server request");
+    state_->server_request_.init(state_->server_request_hdr_buf_, state_->server_request_hdr_loc_);
+  }
+}
+
+void Transaction::initServerResponse() {
+  static initializeHandles initializeServerResponseHandles(TSHttpTxnServerRespGet);
+  if (initializeServerResponseHandles(state_->txn_, state_->server_response_hdr_buf_,
+                                      state_->server_response_hdr_loc_, "server response")) {
+    LOG_DEBUG("Initializing server response");
+    state_->server_response_.init(state_->server_response_hdr_buf_, state_->server_response_hdr_loc_);
+  }
+}
+
+void Transaction::initClientResponse() {
+  static initializeHandles initializeClientResponseHandles(TSHttpTxnClientRespGet);
+  if (initializeClientResponseHandles(state_->txn_, state_->client_response_hdr_buf_,
+                                      state_->client_response_hdr_loc_, "client response")) {
+    LOG_DEBUG("Initializing client response");
+    state_->client_response_.init(state_->client_response_hdr_buf_, state_->client_response_hdr_loc_);
+  }
+}
diff --git a/lib/atscppapi/src/TransactionPlugin.cc b/lib/atscppapi/src/TransactionPlugin.cc
new file mode 100644
index 00000000..52af4781
--- /dev/null
+++ b/lib/atscppapi/src/TransactionPlugin.cc
@@ -0,0 +1,83 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file TransactionPlugin.cc
+ */
+
+#include "atscppapi/TransactionPlugin.h"
+#include <ts/ts.h>
+#include <cstddef>
+#include <cassert>
+#include "atscppapi/Mutex.h"
+#include "atscppapi/shared_ptr.h"
+#include "utils_internal.h"
+#include "atscppapi/noncopyable.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+using atscppapi::TransactionPlugin;
+
+/**
+ * @private
+ */
+struct atscppapi::TransactionPluginState: noncopyable {
+  TSCont cont_;
+  TSHttpTxn ats_txn_handle_;
+  shared_ptr<Mutex> mutex_;
+  TransactionPluginState(TSHttpTxn ats_txn_handle) : ats_txn_handle_(ats_txn_handle),
+                                                     mutex_(new Mutex(Mutex::TYPE_RECURSIVE)) { }
+};
+
+namespace {
+
+static int handleTransactionPluginEvents(TSCont cont, TSEvent event, void *edata) {
+  TSHttpTxn txn = static_cast<TSHttpTxn>(edata);
+  TransactionPlugin *plugin = static_cast<TransactionPlugin *>(TSContDataGet(cont));
+  LOG_DEBUG("cont=%p, event=%d, tshttptxn=%p, plugin=%p", cont, event, edata, plugin);
+  atscppapi::utils::internal::invokePluginForEvent(plugin, txn, event);
+  return 0;
+}
+
+} /* anonymous namespace */
+
+TransactionPlugin::TransactionPlugin(Transaction &transaction) {
+  state_ = new TransactionPluginState(static_cast<TSHttpTxn>(transaction.getAtsHandle()));
+  TSMutex mutex = NULL;
+  state_->cont_ = TSContCreate(handleTransactionPluginEvents, mutex);
+  TSContDataSet(state_->cont_, static_cast<void *>(this));
+  LOG_DEBUG("Creating new TransactionPlugin=%p tshttptxn=%p, cont=%p", this, state_->ats_txn_handle_,
+            state_->cont_);
+}
+
+shared_ptr<Mutex> TransactionPlugin::getMutex() {
+  return state_->mutex_;
+}
+
+TransactionPlugin::~TransactionPlugin() {
+  LOG_DEBUG("Destroying TransactionPlugin=%p", this);
+  TSContDestroy(state_->cont_);
+  delete state_;
+}
+
+void TransactionPlugin::registerHook(Plugin::HookType hook_type) {
+  LOG_DEBUG("TransactionPlugin=%p tshttptxn=%p registering hook_type=%d [%s]", this, state_->ats_txn_handle_,
+            hook_type, HOOK_TYPE_STRINGS[hook_type].c_str());
+  TSHttpHookID hook_id = atscppapi::utils::internal::convertInternalHookToTsHook(hook_type);
+  TSHttpTxnHookAdd(state_->ats_txn_handle_, hook_id, state_->cont_);
+}
diff --git a/lib/atscppapi/src/TransformationPlugin.cc b/lib/atscppapi/src/TransformationPlugin.cc
new file mode 100644
index 00000000..8c21ea9c
--- /dev/null
+++ b/lib/atscppapi/src/TransformationPlugin.cc
@@ -0,0 +1,336 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file TransformationPlugin.cc
+ */
+
+#include "atscppapi/TransformationPlugin.h"
+
+#include <ts/ts.h>
+#include <cstddef>
+#include <inttypes.h>
+#include "utils_internal.h"
+#include "logging_internal.h"
+#include "atscppapi/noncopyable.h"
+
+#ifndef INT64_MAX
+#define INT64_MAX (9223372036854775807LL)
+#endif
+
+using namespace atscppapi;
+using atscppapi::TransformationPlugin;
+
+/**
+ * @private
+ */
+struct atscppapi::TransformationPluginState: noncopyable {
+  TSVConn vconn_;
+  Transaction &transaction_;
+  TransformationPlugin &transformation_plugin_;
+  TransformationPlugin::Type type_;
+  TSVIO output_vio_; // this gets initialized on an output().
+  TSHttpTxn txn_;
+  TSIOBuffer output_buffer_;
+  TSIOBufferReader output_buffer_reader_;
+  int64_t bytes_written_;
+
+  // We can only send a single WRITE_COMPLETE even though
+  // we may receive an immediate event after we've sent a
+  // write complete, so we'll keep track of whether or not we've
+  // sent the input end our write complte.
+  bool input_complete_dispatched_;
+
+  std::string request_xform_output_; // in case of request xform, data produced is buffered here
+
+  TransformationPluginState(atscppapi::Transaction &transaction, TransformationPlugin &transformation_plugin,
+      TransformationPlugin::Type type, TSHttpTxn txn)
+    : vconn_(NULL), transaction_(transaction), transformation_plugin_(transformation_plugin), type_(type),
+      output_vio_(NULL), txn_(txn), output_buffer_(NULL), output_buffer_reader_(NULL), bytes_written_(0),
+      input_complete_dispatched_(false) {
+    output_buffer_ = TSIOBufferCreate();
+    output_buffer_reader_ = TSIOBufferReaderAlloc(output_buffer_);
+  };
+
+  ~TransformationPluginState() {
+    if (output_buffer_reader_) {
+      TSIOBufferReaderFree(output_buffer_reader_);
+      output_buffer_reader_ = NULL;
+    }
+
+    if (output_buffer_) {
+      TSIOBufferDestroy(output_buffer_);
+      output_buffer_ = NULL;
+    }
+  }
+};
+
+namespace {
+
+void cleanupTransformation(TSCont contp) {
+  LOG_DEBUG("Destroying transformation contp=%p", contp);
+  TSContDataSet(contp, reinterpret_cast<void *>(0xDEADDEAD));
+  TSContDestroy(contp);
+}
+
+int handleTransformationPluginRead(TSCont contp, TransformationPluginState *state) {
+  // Traffic Server naming is quite confusing, in this context the write_vio
+  // is actually the vio we read from.
+  TSVIO write_vio = TSVConnWriteVIOGet(contp);
+  if (write_vio) {
+    int64_t to_read = TSVIONTodoGet(write_vio);
+    LOG_DEBUG("Transformation contp=%p write_vio=%p, to_read=%" PRId64, contp, write_vio, to_read);
+
+    if (to_read > 0) {
+      /*
+       * The amount of data left to read needs to be truncated by
+       * the amount of data actually in the read buffer.
+       **/
+      int64_t avail = TSIOBufferReaderAvail(TSVIOReaderGet(write_vio));
+      LOG_DEBUG("Transformation contp=%p write_vio=%p, to_read=%" PRId64 ", buffer reader avail=%" PRId64, contp, write_vio, to_read, avail);
+
+      if (to_read > avail) {
+        to_read = avail;
+        LOG_DEBUG("Transformation contp=%p write_vio=%p, to read > avail, fixing to_read to be equal to avail. to_read=%" PRId64 ", buffer reader avail=%" PRId64, contp, write_vio, to_read, avail);
+      }
+
+      if (to_read > 0) {
+        /* Create a buffer and a buffer reader */
+        TSIOBuffer input_buffer = TSIOBufferCreate();
+        TSIOBufferReader input_reader = TSIOBufferReaderAlloc(input_buffer);
+
+        /* Copy the data from the read buffer to the input buffer. */
+        TSIOBufferCopy(input_buffer, TSVIOReaderGet(write_vio), to_read, 0);
+
+        /* Tell the read buffer that we have read the data and are no
+         longer interested in it. */
+        TSIOBufferReaderConsume(TSVIOReaderGet(write_vio), to_read);
+
+        /* Modify the read VIO to reflect how much data we've completed. */
+        TSVIONDoneSet(write_vio, TSVIONDoneGet(write_vio) + to_read);
+
+        std::string in_data = utils::internal::consumeFromTSIOBufferReader(input_reader);
+        LOG_DEBUG("Transformation contp=%p write_vio=%p consumed %ld bytes from bufferreader", contp, write_vio, in_data.length());
+
+        /* Clean up the buffer and reader */
+        TSIOBufferReaderFree(input_reader);
+        TSIOBufferDestroy(input_buffer);
+
+        /* Now call the client to tell them about data */
+        if (in_data.length() > 0) {
+           state->transformation_plugin_.consume(in_data);
+        }
+      }
+
+      /* now that we've finished reading we will check if there is anything left to read. */
+      TSCont vio_cont = TSVIOContGet(write_vio); // for some reason this can occasionally be null
+
+      if (TSVIONTodoGet(write_vio) > 0) {
+        LOG_DEBUG("Transformation contp=%p write_vio=%p, vio_cont=%p still has bytes left to process, todo > 0.", contp, write_vio, vio_cont);
+
+        if (to_read > 0) {
+          TSVIOReenable(write_vio);
+
+          /* Call back the read VIO continuation to let it know that we are ready for more data. */
+          if (vio_cont) {
+            TSContCall(vio_cont, static_cast<TSEvent>(TS_EVENT_VCONN_WRITE_READY), write_vio);
+          }
+        }
+      } else {
+        LOG_DEBUG("Transformation contp=%p write_vio=%p, vio_cont=%p has no bytes left to process, will send WRITE_COMPLETE.", contp, write_vio, vio_cont);
+
+        /* Call back the write VIO continuation to let it know that we have completed the write operation. */
+        if (!state->input_complete_dispatched_) {
+         state->transformation_plugin_.handleInputComplete();
+         state->input_complete_dispatched_ = true;
+         if (vio_cont && 0 != TSVIOBufferGet(write_vio)) {
+           TSContCall(vio_cont, static_cast<TSEvent>(TS_EVENT_VCONN_WRITE_COMPLETE), write_vio);
+         }
+        }
+      }
+    } else {
+      TSCont vio_cont = TSVIOContGet(write_vio); // for some reason this can occasionally be null?
+      LOG_DEBUG("Transformation contp=%p write_vio=%p, vio_cont=%p has no bytes left to process.", contp, write_vio, vio_cont);
+
+      /* Call back the write VIO continuation to let it know that we have completed the write operation. */
+      if (!state->input_complete_dispatched_) {
+       state->transformation_plugin_.handleInputComplete();
+       state->input_complete_dispatched_ = true;
+       if (vio_cont && 0 != TSVIOBufferGet(write_vio)) {
+         TSContCall(vio_cont, static_cast<TSEvent>(TS_EVENT_VCONN_WRITE_COMPLETE), write_vio);
+       }
+      }
+    }
+  } else {
+    LOG_ERROR("Transformation contp=%p write_vio=%p was NULL!", contp, write_vio);
+  }
+  return 0;
+}
+
+int handleTransformationPluginEvents(TSCont contp, TSEvent event, void *edata) {
+  TransformationPluginState *state = static_cast<TransformationPluginState *>(TSContDataGet(contp));
+  LOG_DEBUG("Transformation contp=%p event=%d edata=%p tshttptxn=%p", contp, event, edata, state->txn_);
+
+  // The first thing you always do is check if the VConn is closed.
+  int connection_closed = TSVConnClosedGet(state->vconn_);
+  if (connection_closed) {
+    LOG_DEBUG("Transformation contp=%p tshttptxn=%p is closed connection_closed=%d ", contp, state->txn_, connection_closed);
+    // we'll do the cleanupTransformation in the TransformationPlugin destructor.
+    return 0;
+  }
+
+  if (event == TS_EVENT_VCONN_WRITE_COMPLETE) {
+    TSVConn output_vconn = TSTransformOutputVConnGet(state->vconn_);
+    LOG_DEBUG("Transformation contp=%p tshttptxn=%p received WRITE_COMPLETE, shutting down outputvconn=%p ", contp, state->txn_, output_vconn);
+    TSVConnShutdown(output_vconn, 0, 1);  // The other end is done reading our output
+    return 0;
+  } else if (event == TS_EVENT_ERROR) {
+    TSVIO write_vio;
+    /* Get the write VIO for the write operation that was
+     performed on ourself. This VIO contains the continuation of
+     our parent transformation. */
+    write_vio = TSVConnWriteVIOGet(state->vconn_);
+    TSCont vio_cont = TSVIOContGet(write_vio);
+    LOG_ERROR("Transformation contp=%p tshttptxn=%p received EVENT_ERROR forwarding to write_vio=%p viocont=%p", contp, state->txn_, write_vio, vio_cont);
+    if (vio_cont) {
+      TSContCall(vio_cont, TS_EVENT_ERROR, write_vio);
+    }
+    return 0;
+  }
+
+  // All other events includign WRITE_READY will just attempt to transform more data.
+  return handleTransformationPluginRead(state->vconn_, state);
+}
+
+} /* anonymous namespace */
+
+TransformationPlugin::TransformationPlugin(Transaction &transaction, TransformationPlugin::Type type)
+  : TransactionPlugin(transaction) {
+  state_ = new TransformationPluginState(transaction, *this, type, static_cast<TSHttpTxn>(transaction.getAtsHandle()));
+  state_->vconn_ = TSTransformCreate(handleTransformationPluginEvents, state_->txn_);
+  TSContDataSet(state_->vconn_, static_cast<void *>(state_)); // edata in a TransformationHandler is NOT a TSHttpTxn.
+  LOG_DEBUG("Creating TransformationPlugin=%p (vconn)contp=%p tshttptxn=%p transformation_type=%d", this, state_->vconn_, state_->txn_, type);
+  TSHttpTxnHookAdd(state_->txn_, utils::internal::convertInternalTransformationTypeToTsHook(type), state_->vconn_);
+}
+
+TransformationPlugin::~TransformationPlugin() {
+  LOG_DEBUG("Destroying TransformationPlugin=%p", this);
+  cleanupTransformation(state_->vconn_);
+  delete state_;
+}
+
+size_t TransformationPlugin::doProduce(const std::string &data) {
+  LOG_DEBUG("TransformationPlugin=%p tshttptxn=%p producing output with length=%ld", this, state_->txn_, data.length());
+  int64_t write_length = static_cast<int64_t>(data.length());
+  if (!write_length) {
+    return 0;
+  }
+
+  if (!state_->output_vio_) {
+    TSVConn output_vconn = TSTransformOutputVConnGet(state_->vconn_);
+    LOG_DEBUG("TransformationPlugin=%p tshttptxn=%p will issue a TSVConnWrite, output_vconn=%p.", this, state_->txn_, output_vconn);
+    if (output_vconn) {
+      // If you're confused about the following reference the traffic server transformation docs.
+      // You always write INT64_MAX, this basically says you're not sure how much data you're going to write
+      state_->output_vio_ = TSVConnWrite(output_vconn, state_->vconn_, state_->output_buffer_reader_, INT64_MAX);
+    } else {
+      LOG_ERROR("TransformationPlugin=%p tshttptxn=%p output_vconn=%p cannot issue TSVConnWrite due to null output vconn.",
+          this, state_->txn_, output_vconn);
+      return 0;
+    }
+
+    if (!state_->output_vio_) {
+      LOG_ERROR("TransformationPlugin=%p tshttptxn=%p state_->output_vio=%p, TSVConnWrite failed.",
+          this, state_->txn_, state_->output_vio_);
+      return 0;
+    }
+  }
+
+  // Finally we can copy this data into the output_buffer
+  int64_t bytes_written = TSIOBufferWrite(state_->output_buffer_, data.c_str(), write_length);
+  state_->bytes_written_ += bytes_written; // So we can set BytesDone on outputComplete().
+  LOG_DEBUG("TransformationPlugin=%p tshttptxn=%p write to TSIOBuffer %" PRId64 " bytes total bytes written %" PRId64, this, state_->txn_, bytes_written, state_->bytes_written_);
+
+  // Sanity Checks
+  if (bytes_written != write_length) {
+    LOG_ERROR("TransformationPlugin=%p tshttptxn=%p bytes written < expected. bytes_written=%" PRId64 " write_length=%" PRId64, this, state_->txn_, bytes_written, write_length);
+  }
+
+  int connection_closed = TSVConnClosedGet(state_->vconn_);
+  LOG_DEBUG("TransformationPlugin=%p tshttptxn=%p vconn=%p connection_closed=%d", this, state_->txn_, state_->vconn_, connection_closed);
+
+  if (!connection_closed) {
+    TSVIOReenable(state_->output_vio_); // Wake up the downstream vio
+  } else {
+    LOG_ERROR("TransformationPlugin=%p tshttptxn=%p output_vio=%p connection_closed=%d : Couldn't reenable output vio (connection closed).", this, state_->txn_, state_->output_vio_, connection_closed);
+  }
+
+  return static_cast<size_t>(bytes_written);
+}
+
+size_t TransformationPlugin::produce(const std::string &data) {
+  if (state_->type_ == REQUEST_TRANSFORMATION) {
+    state_->request_xform_output_.append(data);
+    return data.size();
+  }
+  else {
+    return doProduce(data);
+  }
+}
+
+size_t TransformationPlugin::setOutputComplete() {
+  if (state_->type_ == REQUEST_TRANSFORMATION) {
+    doProduce(state_->request_xform_output_);
+  }
+
+  int connection_closed = TSVConnClosedGet(state_->vconn_);
+  LOG_DEBUG("OutputComplete TransformationPlugin=%p tshttptxn=%p vconn=%p connection_closed=%d, total bytes written=%" PRId64, this, state_->txn_, state_->vconn_, connection_closed,state_->bytes_written_);
+
+  if (!connection_closed && !state_->output_vio_) {
+      LOG_DEBUG("TransformationPlugin=%p tshttptxn=%p output complete without writing any data, initiating write of 0 bytes.", this, state_->txn_);
+
+      // We're done without ever outputting anything, to correctly
+      // clean up we'll initiate a write then immeidately set it to 0 bytes done.
+      state_->output_vio_ = TSVConnWrite(TSTransformOutputVConnGet(state_->vconn_), state_->vconn_, state_->output_buffer_reader_, 0);
+
+      if (state_->output_vio_) {
+        TSVIONDoneSet(state_->output_vio_, 0);
+        TSVIOReenable(state_->output_vio_); // Wake up the downstream vio
+      } else {
+        LOG_ERROR("TransformationPlugin=%p tshttptxn=%p unable to reenable output_vio=%p because VConnWrite failed.", this, state_->txn_, state_->output_vio_);
+      }
+
+      return 0;
+  }
+
+  if (!connection_closed) {
+    // So there is a possible race condition here, if we wake up a dead
+    // VIO it can cause a segfault, so we must check that the VCONN is not dead.
+    int connection_closed = TSVConnClosedGet(state_->vconn_);
+    if (!connection_closed) {
+      TSVIONBytesSet(state_->output_vio_, state_->bytes_written_);
+      TSVIOReenable(state_->output_vio_); // Wake up the downstream vio
+    } else {
+      LOG_ERROR("TransformationPlugin=%p tshttptxn=%p unable to reenable output_vio=%p connection was closed=%d.", this, state_->txn_, state_->output_vio_, connection_closed);
+    }
+  } else {
+    LOG_ERROR("TransformationPlugin=%p tshttptxn=%p unable to reenable output_vio=%p connection was closed=%d.", this, state_->txn_, state_->output_vio_, connection_closed);
+  }
+
+  return state_->bytes_written_;
+}
diff --git a/lib/atscppapi/src/Url.cc b/lib/atscppapi/src/Url.cc
new file mode 100644
index 00000000..1b69f4c7
--- /dev/null
+++ b/lib/atscppapi/src/Url.cc
@@ -0,0 +1,207 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Url.cc
+ */
+#include "atscppapi/Url.h"
+#include <ts/ts.h>
+#include "atscppapi/noncopyable.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+using std::string;
+
+/**
+ * @private
+ */
+struct atscppapi::UrlState: noncopyable {
+  TSMBuffer hdr_buf_;
+  TSMLoc url_loc_;
+  UrlState(TSMBuffer hdr_buf, TSMLoc url_loc) :
+      hdr_buf_(hdr_buf), url_loc_(url_loc) {
+  }
+};
+
+Url::Url() {
+  state_ = new UrlState(static_cast<TSMBuffer>(NULL), static_cast<TSMLoc>(NULL));
+}
+
+Url::Url(void *hdr_buf, void *url_loc) {
+  state_ = new UrlState(static_cast<TSMBuffer>(hdr_buf), static_cast<TSMLoc>(url_loc));
+}
+
+void Url::init(void *hdr_buf, void *url_loc) {
+  state_->hdr_buf_ = static_cast<TSMBuffer>(hdr_buf);
+  state_->url_loc_ = static_cast<TSMLoc>(url_loc);
+}
+
+Url::~Url() {
+  delete state_;
+}
+
+bool inline Url::isInitialized() const {
+  return state_->hdr_buf_ && state_->url_loc_;
+}
+
+void Url::reset() {
+
+}
+
+std::string Url::getUrlString() const {
+  std::string ret_str;
+  if (isInitialized()) {
+    int length;
+    char *memptr = TSUrlStringGet(state_->hdr_buf_, state_->url_loc_, &length);
+    if (memptr && length) {
+      ret_str = std::string(memptr, length);
+      TSfree(memptr);
+      LOG_DEBUG("Got URL [%s]", ret_str.c_str());
+    } else {
+      LOG_ERROR("Got null/zero-length URL string; hdr_buf %p, url_loc %p, ptr %p, length %d", state_->hdr_buf_,
+                state_->url_loc_, memptr, length);
+    }
+  }
+  return ret_str;
+}
+
+std::string Url::getPath() const {
+  std::string ret_str;
+  if (isInitialized()) {
+    int length;
+    const char *memptr = TSUrlPathGet(state_->hdr_buf_, state_->url_loc_, &length);
+    if (memptr && length) {
+      ret_str = std::string(memptr, length);
+    }
+    LOG_DEBUG("Using path [%s]", ret_str.c_str());
+  }
+  return ret_str;
+}
+
+std::string Url::getQuery() const {
+  std::string ret_str;
+  if (isInitialized()) {
+    int length;
+    const char *memptr = TSUrlHttpQueryGet(state_->hdr_buf_, state_->url_loc_, &length);
+    if (memptr && length) {
+      ret_str = std::string(memptr, length);
+    }
+    LOG_DEBUG("Using query [%s]", ret_str.c_str());
+  }
+  return ret_str;
+}
+
+std::string Url::getScheme() const {
+  std::string ret_str;
+  if (isInitialized()) {
+    int length;
+    const char *memptr = TSUrlSchemeGet(state_->hdr_buf_, state_->url_loc_, &length);
+    if (memptr && length) {
+      ret_str = std::string(memptr, length);
+    }
+    LOG_DEBUG("Using scheme [%s]", ret_str.c_str());
+  }
+  return ret_str;
+}
+
+std::string Url::getHost() const {
+  std::string ret_str;
+  if (isInitialized()) {
+    int length;
+    const char *memptr = TSUrlHostGet(state_->hdr_buf_, state_->url_loc_, &length);
+    if (memptr && length) {
+      ret_str = std::string(memptr, length);
+    }
+    LOG_DEBUG("Using host [%s]", ret_str.c_str());
+  }
+  return ret_str;
+}
+
+uint16_t Url::getPort() const {
+  uint16_t ret_val = 0;
+  if (isInitialized()) {
+    ret_val = static_cast<uint16_t>(TSUrlPortGet(state_->hdr_buf_, state_->url_loc_));
+    LOG_DEBUG("Got port %d", ret_val);
+  }
+  return ret_val;
+}
+
+void Url::setPath(const std::string &path) {
+  if (!isInitialized()) {
+    LOG_ERROR("Url %p not initialized", this);
+    return;
+  }
+
+  if (TSUrlPathSet(state_->hdr_buf_, state_->url_loc_, path.c_str(), path.length()) == TS_SUCCESS) {
+    LOG_DEBUG("Set path to [%s]", path.c_str());
+  } else {
+    LOG_ERROR("Could not set path; hdr_buf %p, url_loc %p", state_->hdr_buf_, state_->url_loc_);
+  }
+}
+
+void Url::setQuery(const std::string &query) {
+  if (!isInitialized()) {
+    LOG_ERROR("Url %p not initialized", this);
+    return;
+  }
+
+  if (TSUrlHttpQuerySet(state_->hdr_buf_, state_->url_loc_, query.c_str(), query.length()) == TS_SUCCESS) {
+    LOG_DEBUG("Set query to [%s]", query.c_str());
+  } else {
+    LOG_ERROR("Could not set query; hdr_buf %p, url_loc %p", state_->hdr_buf_, state_->url_loc_);
+  }
+}
+
+void Url::setScheme(const std::string &scheme) {
+  if (!isInitialized()) {
+    LOG_ERROR("Url %p not initialized", this);;
+    return;
+  }
+
+  if (TSUrlSchemeSet(state_->hdr_buf_, state_->url_loc_, scheme.c_str(), scheme.length()) == TS_SUCCESS) {
+    LOG_DEBUG("Set scheme to [%s]", scheme.c_str());
+  } else {
+    LOG_ERROR("Could not set scheme; hdr_buf %p, url_loc %p", state_->hdr_buf_, state_->url_loc_);
+  }
+}
+
+void Url::setHost(const std::string &host) {
+  if (!isInitialized()) {
+    LOG_ERROR("Url %p not initialized", this);
+    return;
+  }
+
+  if (TSUrlHostSet(state_->hdr_buf_, state_->url_loc_, host.c_str(), host.length()) == TS_SUCCESS) {
+    LOG_DEBUG("Set host to [%s]", host.c_str());
+  } else {
+    LOG_ERROR("Could not set host; hdr_buf %p, url_loc %p", state_->hdr_buf_, state_->url_loc_);
+  }
+}
+
+void Url::setPort(const uint16_t port) {
+  if (!isInitialized()) {
+    LOG_ERROR("Url %p not initialized", this);
+    return;
+  }
+
+  if (TSUrlPortSet(state_->hdr_buf_, state_->url_loc_, port) == TS_SUCCESS) {
+    LOG_DEBUG("Set port to %d", port);
+  } else {
+    LOG_ERROR("Could not set port; hdr_buf %p, url_loc %p", state_->hdr_buf_, state_->url_loc_);
+  }
+}
diff --git a/lib/atscppapi/src/include/atscppapi/Async.h b/lib/atscppapi/src/include/atscppapi/Async.h
new file mode 100644
index 00000000..3bfa2f4a
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Async.h
@@ -0,0 +1,221 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Async.h
+ * @brief Provides constructs to perform async operations.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_ASYNC_H_
+#define ATSCPPAPI_ASYNC_H_
+#include <list>
+#include <atscppapi/Mutex.h>
+#include <atscppapi/noncopyable.h>
+#include <atscppapi/shared_ptr.h>
+
+namespace atscppapi {
+
+/**
+ * @private
+ *
+ * @brief This class represents the interface of a dispatch controller. A dispatch controller
+ * is used to dispatch an event to a receiver. This interface exists so that the types in this
+ * header file can be defined.
+ */
+class AsyncDispatchControllerBase : noncopyable {
+public:
+  /**
+   * Dispatches an async event to a receiver.
+   *
+   * @return True if the receiver was still alive.
+   */
+  virtual bool dispatch() = 0;
+
+  /** Renders dispatch unusable to communicate to receiver */
+  virtual void disable() = 0;
+
+  /** Returns true if receiver can be communicated with */
+  virtual bool isEnabled() = 0;
+
+  virtual ~AsyncDispatchControllerBase() { }
+};
+
+/**
+ * @brief AsyncProvider is the interface that providers of async operations must implement. 
+ * The system allows decoupling of the lifetime/scope of provider and receiver objects. The 
+ * receiver object might have expired before the async operation is complete and the system
+ * handles this case. Because of this decoupling, it is the responsibility of the provider
+ * to manage it's expiration - self-destruct on completion is a good option.
+ */
+class AsyncProvider {
+public:
+  /**
+   * This method is invoked when the async operation is requested. This call should be used
+   * to just start the async operation and *not* block this thread. On completion, 
+   * getDispatchController() can be used to invoke the receiver.
+   */
+  virtual void run() = 0;
+
+  /** Base implementation just breaks communication channel with receiver. Implementations
+   * should add business logic here. */
+  virtual void cancel() {
+    if (dispatch_controller_) {
+      dispatch_controller_->disable();
+    }
+  }
+
+  virtual ~AsyncProvider() { }
+
+protected:
+  shared_ptr<AsyncDispatchControllerBase> getDispatchController() { return dispatch_controller_; }
+
+private:
+  shared_ptr<AsyncDispatchControllerBase> dispatch_controller_;
+  void doRun(shared_ptr<AsyncDispatchControllerBase> dispatch_controller) {
+    dispatch_controller_ = dispatch_controller;
+    run();
+  }
+  friend class Async;
+};
+
+/**
+ * @private
+ *
+ * @brief Dispatch controller implementation. When invoking the receiver, it verifies that the
+ * receiver is still alive, locks the mutex and then invokes handleAsyncComplete().
+ */
+template<typename AsyncEventReceiverType, typename AsyncProviderType>
+class AsyncDispatchController : public AsyncDispatchControllerBase {
+public:
+  bool dispatch() {
+    bool ret = false;
+    ScopedSharedMutexLock scopedLock(dispatch_mutex_);
+    if (event_receiver_) {
+      event_receiver_->handleAsyncComplete(static_cast<AsyncProviderType &>(*provider_));
+      ret = true;
+    }
+    return ret;
+  }
+
+  void disable() {
+    ScopedSharedMutexLock scopedLock(dispatch_mutex_);
+    event_receiver_ = NULL;
+  }
+
+  bool isEnabled() {
+    return (event_receiver_ != NULL);
+  }
+
+  /**
+   * Constructor
+   *
+   * @param event_receiver The async complete event will be dispatched to this receiver.
+   * @param provider Async operation provider that is passed to the receiver on dispatch.
+   * @param mutex Mutex of the receiver that is locked during the dispatch
+   */
+  AsyncDispatchController(AsyncEventReceiverType *event_receiver, AsyncProviderType *provider, shared_ptr<Mutex> mutex) :
+    event_receiver_(event_receiver), dispatch_mutex_(mutex), provider_(provider) {
+  }
+
+  virtual ~AsyncDispatchController() { }
+public:
+  AsyncEventReceiverType *event_receiver_;
+  shared_ptr<Mutex> dispatch_mutex_;
+private:
+  AsyncProviderType *provider_;
+};
+
+/**
+ * @private
+ * 
+ * @brief A promise is used to let the dispatch controller know if the receiver is still
+ * alive to receive the async complete dispatch. When the receiver dies, this promise is
+ * broken and it automatically updates the dispatch controller.
+ */
+template<typename AsyncEventReceiverType, typename AsyncProviderType>
+class AsyncReceiverPromise : noncopyable {
+public:
+  AsyncReceiverPromise(shared_ptr<AsyncDispatchController<AsyncEventReceiverType, AsyncProviderType> > dispatch_controller) :
+    dispatch_controller_(dispatch_controller) { }
+
+  ~AsyncReceiverPromise() {
+    ScopedSharedMutexLock scopedLock(dispatch_controller_->dispatch_mutex_);
+    dispatch_controller_->event_receiver_ = NULL;
+  }
+protected:
+  shared_ptr<AsyncDispatchController<AsyncEventReceiverType, AsyncProviderType> > dispatch_controller_;
+};
+
+/**
+ * @brief AsyncReceiver is the interface that receivers of async operations must implement. It is
+ * templated on the type of the async operation provider.
+ */
+template<typename AsyncProviderType>
+class AsyncReceiver : noncopyable {
+public:
+  /**
+   * This method is invoked when the async operation is completed. The
+   * mutex provided during the creation of the async operation will be
+   * automatically locked during the invocation of this method.
+   *
+   * @param provider A reference to the provider which completed the async operation.
+   */
+  virtual void handleAsyncComplete(AsyncProviderType &provider) = 0;
+  virtual ~AsyncReceiver() { }
+protected:
+  AsyncReceiver() { }
+  friend class Async;
+private:
+  mutable std::list<shared_ptr<AsyncReceiverPromise<AsyncReceiver<AsyncProviderType>, AsyncProviderType> > > receiver_promises_;
+};
+
+/**
+ * @brief This class provides a method to create an async operation.
+ */
+class Async : noncopyable {
+public:
+  /**
+   * This method sets up the dispatch controller to link the async operation provider and 
+   * receiver and then initiates the operation by invoking the provider. 
+   *
+   * @param event_receiver The receiver of the async complete dispatch.
+   * @param provider The provider of the async operation.
+   * @param mutex The mutex that is locked during the dispatch of the async event complete.
+   *              One will be created if nothing is passed in. Transaction plugins should use 
+   *              TransactionPlugin::getMutex() here and global plugins can pass an appropriate
+   *              or NULL mutex.
+   */
+  template<typename AsyncProviderType>
+  static void execute(AsyncReceiver<AsyncProviderType> *event_receiver, AsyncProviderType *provider, shared_ptr<Mutex> mutex) {
+    if (!mutex.get()) {
+      mutex.reset(new Mutex(Mutex::TYPE_RECURSIVE));
+    }
+    shared_ptr<AsyncDispatchController<AsyncReceiver<AsyncProviderType>, AsyncProviderType > > dispatcher(
+      new AsyncDispatchController<AsyncReceiver<AsyncProviderType>, AsyncProviderType >(event_receiver, provider, mutex));
+    shared_ptr<AsyncReceiverPromise<AsyncReceiver<AsyncProviderType>, AsyncProviderType > > receiver_promise(
+      new AsyncReceiverPromise<AsyncReceiver<AsyncProviderType>, AsyncProviderType >(dispatcher));
+    event_receiver->receiver_promises_.push_back(receiver_promise); // now if the event receiver dies, we're safe.
+    provider->doRun(dispatcher);
+  }
+};
+
+}
+
+
+#endif /* ATSCPPAPI_ASYNC_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/AsyncHttpFetch.h b/lib/atscppapi/src/include/atscppapi/AsyncHttpFetch.h
new file mode 100644
index 00000000..1ddd235b
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/AsyncHttpFetch.h
@@ -0,0 +1,105 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file AsyncHttpFetch.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_ASYNCHTTPFETCH_H_
+#define ATSCPPAPI_ASYNCHTTPFETCH_H_
+
+#include <string>
+#include <atscppapi/shared_ptr.h>
+#include <atscppapi/Async.h>
+#include <atscppapi/Request.h>
+#include <atscppapi/Response.h>
+
+namespace atscppapi {
+
+// forward declarations
+struct AsyncHttpFetchState;
+namespace utils { class internal; }
+
+/**
+ * @brief This class provides an implementation of AsyncProvider that
+ * makes HTTP requests asynchronously. This provider automatically
+ * self-destructs after the completion of the request.
+ *
+ * See example async_http_fetch for sample usage.
+ */
+class AsyncHttpFetch : public AsyncProvider {
+public:
+  AsyncHttpFetch(const std::string &url_str, HttpMethod http_method = HTTP_METHOD_GET);
+
+  AsyncHttpFetch(const std::string &url_str,  const std::string &request_body);
+
+  /**
+   * Used to manipulate the headers of the request to be made.
+   *
+   * @return A reference to mutable headers.
+   */
+  Headers &getRequestHeaders();
+
+  enum Result { RESULT_SUCCESS = 10000, RESULT_TIMEOUT, RESULT_FAILURE };
+
+  /**
+   * Used to extract the response after request completion. 
+   *
+   * @return Result of the operation
+   */
+  Result getResult() const;
+
+  /**
+   * @return Non-mutable reference to the request URL.
+   */
+  const Url &getRequestUrl() const;
+
+  /**
+   * Used to extract the response after request completion. 
+   *
+   * @return Non-mutable reference to the response.
+   */
+  const Response &getResponse() const;
+
+  /**
+   * Used to extract the body of the response after request completion. On
+   * unsuccessful completion, values (NULL, 0) are set.
+   *
+   * @param body Output argument; will point to the body
+   * @param body_size Output argument; will contain the size of the body 
+   * 
+   */
+  void getResponseBody(const void *&body, size_t &body_size) const;
+
+  /**
+   * Starts a HTTP fetch of the Request contained.
+   */  
+  virtual void run();
+protected:
+  virtual ~AsyncHttpFetch();
+
+private:
+  AsyncHttpFetchState *state_;
+  void init(const std::string &url_str, HttpMethod http_method, const std::string &request_body);
+  friend class utils::internal;
+};
+
+} /* atscppapi */
+
+#endif /* ATSCPPAPI_ASYNCHTTPFETCH_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/AsyncTimer.h b/lib/atscppapi/src/include/atscppapi/AsyncTimer.h
new file mode 100644
index 00000000..5b5f6d5c
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/AsyncTimer.h
@@ -0,0 +1,80 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file AsyncTimer.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_ASYNCTIMER_H_
+#define ATSCPPAPI_ASYNCTIMER_H_
+
+#include <string>
+#include <atscppapi/shared_ptr.h>
+#include <atscppapi/Async.h>
+#include <atscppapi/Request.h>
+#include <atscppapi/Response.h>
+
+namespace atscppapi {
+
+// forward declarations
+struct AsyncTimerState;
+
+/**
+ * @brief This class provides an implementation of AsyncProvider that
+ * acts as a timer. It sends events at the set frequency. Calling the
+ * destructor will stop the events. A one-off timer just sends one
+ * event. Calling the destructor before this event will cancel the timer.
+ * 
+ * For either type, user must delete the timer.
+ *
+ * See example async_timer for sample usage.
+ */
+class AsyncTimer : public AsyncProvider {
+public:
+
+  enum Type { TYPE_ONE_OFF = 0, TYPE_PERIODIC };
+
+  /**
+   * Constructor.
+   * 
+   * @param type A one-off timer fires only once and a periodic timer fires periodically.
+   * @param period_in_ms The receiver will receive an event every this many milliseconds.
+   * @param initial_period_in_ms The first event will arrive after this many milliseconds. Subsequent
+   *                             events will have "regular" cadence. This is useful if the timer is
+   *                             set for a long period of time (1hr etc.), but an initial event is
+   *                             required. Value of 0 (default) indicates no initial event is desired.
+   */
+  AsyncTimer(Type type, int period_in_ms, int initial_period_in_ms = 0);
+
+  virtual ~AsyncTimer();
+
+  /**
+   * Starts the timer.
+   */  
+  void run();
+
+  void cancel();
+
+private:
+  AsyncTimerState *state_;
+};
+
+} /* atscppapi */
+
+#endif /* ATSCPPAPI_ASYNCTIMER_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/CaseInsensitiveStringComparator.h b/lib/atscppapi/src/include/atscppapi/CaseInsensitiveStringComparator.h
new file mode 100644
index 00000000..a47462aa
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/CaseInsensitiveStringComparator.h
@@ -0,0 +1,51 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file CaseInsensitiveStringComparator.h
+ * @brief A case insensitive comparator that can be used with STL containers.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_CASE_INSENSITIVE_STRING_COMPARATOR_H_
+#define ATSCPPAPI_CASE_INSENSITIVE_STRING_COMPARATOR_H_
+
+#include <string>
+
+namespace atscppapi {
+
+/**
+ * @brief A case insensitive comparator that can be used with standard library containers.
+ *
+ * The primary use for this class is to make all Headers case insensitive.
+ */
+class CaseInsensitiveStringComparator {
+public:
+  /**
+   * @return true if lhs is lexicographically "less-than" rhs; meant for use in std::map or other standard library containers.
+   */
+  bool operator()(const std::string &lhs, const std::string &rhs) const;
+
+  /**
+   * @return numerical value of lexicographical comparison a la strcmp
+   */
+  int compare(const std::string &lhs, const std::string &rhs) const;
+};
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/ClientRequest.h b/lib/atscppapi/src/include/atscppapi/ClientRequest.h
new file mode 100644
index 00000000..2da61c57
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/ClientRequest.h
@@ -0,0 +1,59 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file ClientRequest.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_CLIENTREQUEST_H_
+#define ATSCPPAPI_CLIENTREQUEST_H_
+
+#include <atscppapi/Request.h>
+
+namespace atscppapi {
+
+struct ClientRequestState;
+
+/**
+ * @brief Encapsulates a client request. A client request is different from a
+ * server request as it has two URLs - the pristine URL sent by the client 
+ * and a remapped URL created by the server.
+ */
+class ClientRequest : public Request {
+public:
+  /**
+   * @private
+   */
+  ClientRequest(void *raw_txn, void *hdr_buf, void *hdr_loc);
+
+  /**
+   * Returns the pristine (pre-remap) client request URL 
+   *
+   * @return Url Reference to non-mutable pristine URL.
+   */
+  const Url &getPristineUrl() const;
+
+  ~ClientRequest();
+private:
+  ClientRequestState *state_;
+};
+
+}
+
+#endif /* ATSCPPAPI_CLIENTREQUEST_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/GlobalPlugin.h b/lib/atscppapi/src/include/atscppapi/GlobalPlugin.h
new file mode 100644
index 00000000..2c777694
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/GlobalPlugin.h
@@ -0,0 +1,90 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file GlobalPlugin.h
+ * @brief Contains the interface used in creating Global plugins.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_GLOBALPLUGIN_H_
+#define ATSCPPAPI_GLOBALPLUGIN_H_
+
+#include <atscppapi/Plugin.h>
+
+namespace atscppapi {
+
+struct GlobalPluginState;
+
+/**
+ * @brief The interface used when creating a GlobalPlugin.
+ *
+ * A GlobalPlugin is a Plugin that will fire for a given hook on all Transactions.
+ * In otherwords, a GlobalPlugin is not tied to a specific plugin, a Transaction
+ * specific plugin would be a TransactionPlugin.
+ *
+ * Depending on the
+ * type of hook you choose to build you will implement one or more callback methods.
+ * Here is a simple example of a GlobalPlugin:
+ *
+ * \code
+ * class GlobalHookPlugin : public GlobalPlugin {
+ * public:
+ *  GlobalHookPlugin() {
+ *   registerHook(HOOK_READ_REQUEST_HEADERS_PRE_REMAP);
+ *  }
+ *  virtual void handleReadRequestHeadersPreRemap(Transaction &transaction) {
+ *    std::cout << "Hello from handleReadRequesHeadersPreRemap!" << std::endl;
+ *    transaction.resume();
+ *  }
+ * };
+ * \endcode
+ * @see Plugin
+ */
+class GlobalPlugin : public Plugin {
+public:
+  /**
+   * registerHook is the mechanism used to attach a global hook.
+   *
+   * \note Whenever you register a hook you must have the appropriate callback definied in your GlobalPlugin
+   *  see HookType and Plugin for the correspond HookTypes and callback methods. If you fail to implement the
+   *  callback, a default implmentation will be used that will only resume the Transaction.
+   *
+   * @param HookType the type of hook you wish to register
+   * @see HookType
+   * @see Plugin
+   */
+  void registerHook(Plugin::HookType);
+  virtual ~GlobalPlugin();
+protected:
+  /**
+   * Constructor.
+   *
+   * @param ignore_internal_transactions When true, all hooks registered by this plugin are ignored
+   *                                     for internal transactions (internal transactions are created
+   *                                     when other plugins create requests). Defaults to false.
+   */
+  GlobalPlugin(bool ignore_internal_transactions = false);
+private:
+  GlobalPluginState *state_; /**< Internal state tied to a GlobalPlugin */
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_GLOBALPLUGIN_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/GzipDeflateTransformation.h b/lib/atscppapi/src/include/atscppapi/GzipDeflateTransformation.h
new file mode 100644
index 00000000..6a6443f7
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/GzipDeflateTransformation.h
@@ -0,0 +1,91 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file GzipDeflateTransformation.h
+ * @brief Gzip Deflate Transformation can be used to compress content.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_GZIPDEFLATETRANSFORMATION_H_
+#define ATSCPPAPI_GZIPDEFLATETRANSFORMATION_H_
+
+#include <string>
+#include "atscppapi/TransformationPlugin.h"
+
+namespace atscppapi {
+
+namespace transformations {
+
+/**
+ * Internal state for Deflate Transformations
+ * @private
+ */
+struct GzipDeflateTransformationState;
+
+/**
+ * @brief A TransformationPlugin to easily add gzip deflate to your TransformationPlugin chain.
+ *
+ * The GzipDeflateTransformation is a helper transformation that can be used
+ * to easily compress content. For a full example of GzipDeflateTransformation
+ * and GzipInflateTransformation see examples/gzip_transformation/.
+ *
+ * @note GzipDeflateTransformation DOES NOT set Content-Encoding headers, it is the
+ * users responsibility to set any applicable headers.
+ *
+ * @see GzipInflateTransformation
+ */
+class GzipDeflateTransformation : public TransformationPlugin {
+public:
+  /**
+   * A full example of how to use GzipDeflateTransformation and GzipInflateTransformation is available
+   * in examples/gzip_tranformation/
+   *
+   * @param transaction As with any TransformationPlugin you must pass in the transaction
+   * @param type because the GzipDeflateTransformation can be used with both requests and responses
+   *  you must specify the Type.
+   *
+   * @see TransformationPlugin::Type
+   */
+  GzipDeflateTransformation(Transaction &transaction, TransformationPlugin::Type type);
+
+  /**
+   * Any TransformationPlugin must implement consume(), this method will take content
+   * from the transformation chain and gzip compress it.
+   *
+   * @param data the input data to compress
+   */
+  void consume(const std::string &data);
+
+  /**
+   * Any TransformationPlugin must implement handleInputComplete(), this method will
+   * finalize the gzip compression and flush any remaining data and the epilouge.
+   */
+  void handleInputComplete();
+
+  virtual ~GzipDeflateTransformation();
+private:
+  GzipDeflateTransformationState *state_; /** Internal state for Gzip Deflate Transformations */
+};
+
+}
+
+}
+
+
+#endif /* ATSCPPAPI_GZIPDEFLATETRANSFORMATION_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/GzipInflateTransformation.h b/lib/atscppapi/src/include/atscppapi/GzipInflateTransformation.h
new file mode 100644
index 00000000..1c32663c
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/GzipInflateTransformation.h
@@ -0,0 +1,92 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file GzipInflateTransformation.h
+ * @brief Gzip Inflate Transformation can be used to decompress gzipped content.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_GZIPINFLATETRANSFORMATION_H_
+#define ATSCPPAPI_GZIPINFLATETRANSFORMATION_H_
+
+#include <string>
+#include "atscppapi/TransformationPlugin.h"
+
+namespace atscppapi {
+
+namespace transformations {
+
+/**
+ * Internal state for Inflate Transformations
+ * @private
+ */
+struct GzipInflateTransformationState;
+
+/**
+ * @brief A TransformationPlugin to easily add gzip inflate to your TransformationPlugin chain.
+ *
+ * The GzipInflateTransformation is a helper transformation that can be used
+ * to easily decompress gzipped content. For a full example of GzipInflateTransformation
+ * and GzipDeflateTransformation see examples/gzip_transformation/.
+ *
+ * @note GzipDeflateTransformation DOES NOT set or check Content-Encoding headers, it is the
+ * users responsibility to set any applicable headers and check that the content is acctually
+ * gzipped by checking the Content-Encoding header before creating a GzipInflateTransformation,
+ * see examples/gzip_transformation/ for a full example.
+ *
+ * @see GzipDeflateTransformation
+ */
+class GzipInflateTransformation : public TransformationPlugin {
+public:
+  /**
+   * A full example of how to use GzipInflateTransformation and GzipDeflateTransformation is available
+   * in examples/gzip_tranformation/
+   *
+   * @param transaction As with any TransformationPlugin you must pass in the transaction
+   * @param type because the GzipInflateTransformation can be used with both requests and responses
+   *  you must specify the Type.
+   *
+   * @see TransformationPlugin::Type
+   */
+  GzipInflateTransformation(Transaction &transaction, TransformationPlugin::Type type);
+
+  /**
+   * Any TransformationPlugin must implement consume(), this method will take content
+   * from the transformation chain and gzip decompress it.
+   *
+   * @param data the input data to decompress
+   */
+  void consume(const std::string &);
+
+  /**
+   * Any TransformationPlugin must implement handleInputComplete(), this method will
+   * finalize the gzip decompression.
+   */
+  void handleInputComplete();
+
+  virtual ~GzipInflateTransformation();
+private:
+  GzipInflateTransformationState *state_; /** Internal state for Gzip Deflate Transformations */
+};
+
+} /* transformations */
+
+} /* atscppapi */
+
+#endif /* ATSCPPAPI_GZIPINFLATETRANSFORMATION_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/Headers.h b/lib/atscppapi/src/include/atscppapi/Headers.h
new file mode 100644
index 00000000..98340d27
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Headers.h
@@ -0,0 +1,600 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Headers.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_HEADERS_H_
+#define ATSCPPAPI_HEADERS_H_
+
+#include <atscppapi/noncopyable.h>
+#include <string>
+
+namespace atscppapi {
+
+struct HeadersState;
+struct HeaderFieldIteratorState;
+struct HeaderFieldValueIteratorState;
+class Request;
+class ClientRequest;
+class Response;
+
+/**
+ * @brief A HeaderFieldName is a lightweight wrapper around a string that allows for case insensitive comparisons.
+ * Because header field names must be case insensitive this allows easy case insentive comparisons of names.
+ *
+ */
+class HeaderFieldName {
+ private:
+   std::string name_;
+ public:
+   typedef std::string::size_type size_type;
+
+   /**
+    * Constructor: build a new HeaderField name with the given string
+    */
+   HeaderFieldName(const std::string &name);
+
+   /**
+    * std::string conversion
+    * @return a string which is this HeaderFieldName
+    */
+   operator std::string();
+
+   /**
+     * const char * conversion
+     * @return a const char * which is this HeaderFieldName
+     */
+   operator const char*();
+
+   /**
+    * @return the length of this HeaderFieldName
+    */
+   size_type length();
+
+   /**
+    * @return a string which is this HeaderFieldName
+    */
+   std::string str();
+
+   /**
+    * @return a const char * which points to the name of this HeaderFIeldName
+    */
+   const char *c_str();
+
+   /**
+    * Case insensitive comparison of this HeaderFieldName
+    * @return true if the two strings are equal.
+    */
+   bool operator==(const char *field_name);
+
+   /**
+     * Case insensitive comparison of this HeaderFieldName
+     * @return true if the two strings are equal.
+     */
+   bool operator==(const std::string &field_name);
+
+   /**
+     * Case insensitive comparison of this HeaderFieldName
+     * @return true if the two strings are not equal.
+     */
+   bool operator!=(const char *field_name);
+
+   /**
+     * Case insensitive comparison of this HeaderFieldName
+     * @return true if the two strings are not equal.
+     */
+   bool operator!=(const std::string &field_name);
+};
+
+class HeaderField;
+
+/**
+ * @brief A header field value iterator iterates through all header fields.
+ */
+class header_field_value_iterator : public std::iterator<std::forward_iterator_tag, int>
+{
+  private:
+    HeaderFieldValueIteratorState *state_;
+  public:
+    /**
+      * Constructor for header_field_value_iterator, this shouldn't need to be used directly.
+      * @param bufp the TSMBuffer associated with the headers
+      * @param mloc the TSMLoc associated with the headers.
+      * @param field_loc the TSMLoc assocated with the field.
+      * @param index the index of the value in the HeaderField
+      * @warning This shouldn't need to be used directly!
+      */
+    header_field_value_iterator(void *bufp, void *hdr_loc, void *field_loc, int index);
+
+    /**
+      * Copy Constructor for header_field_value_iterator, this shouldn't need to be used directly.
+      * @param header_field_value_iterator an existing iterator to copy
+      * @warning This shouldn't need to be used directly!
+      */
+    header_field_value_iterator(const header_field_value_iterator& it);
+    ~header_field_value_iterator();
+
+    /**
+     * Dereference this iterator into a string (get the value pointed to by this iterator)
+     * @return a string which is the value pointed to by this iterator
+     */
+    std::string operator*();
+
+    /**
+     * Advance the iterator to the next header field value
+     * @return a reference to a the next iterator
+     */
+    header_field_value_iterator& operator++();
+
+    /**
+     * Advance the current iterator to the next header field
+     * @return a new iterator which points to the next element
+     */
+    header_field_value_iterator operator++(int);
+
+    /**
+     * Compare two iterators returning true if they are equal
+     * @return true if two iterators are equal
+     */
+    bool operator==(const header_field_value_iterator& rhs) const;
+
+    /**
+     * Compare two iterators returning true if they are NOT equal
+     * @return true if two iterators are not equal.
+     */
+    bool operator!=(const header_field_value_iterator& rhs) const;
+
+    friend class HeaderField;
+};
+
+/**
+ * @brief A header field iterator is an iterator that dereferences to a HeaderField.
+ */
+class header_field_iterator : public std::iterator<std::forward_iterator_tag, int>
+{
+  private:
+    HeaderFieldIteratorState *state_;
+    header_field_iterator(void *hdr_buf, void *hdr_loc, void *field_loc);
+  public:
+    ~header_field_iterator();
+
+    /**
+      * Copy Constructor for header_field_iterator, this shouldn't need to be used directly.
+      * @param header_field_iterator: for constructing the iterator.
+      * @warning This shouldn't need to be used directly!
+     */
+    header_field_iterator(const header_field_iterator& it);
+
+    header_field_iterator &operator=(const header_field_iterator &rhs);
+
+    /**
+     * Advance the iterator to the next header field
+     * @return a reference to a the next iterator
+     */
+    header_field_iterator& operator++();
+
+    /**
+     * Advance the current iterator to the next header field
+     * @return a new iterator which points to the next element
+     */
+    header_field_iterator operator++(int);
+
+    /**
+     * Advance the iterator to the next header field with the same name
+     * @return a reference to a the next iterator
+     */
+    header_field_iterator& nextDup();
+
+    /**
+     * Comparison operator, compare two iterators
+     * @return true if the two iterators point to the same HeaderField
+     */
+    bool operator==(const header_field_iterator& rhs) const;
+
+    /**
+     * Inequality Operator, compare two iterators
+     * @return false if the two iterators are the same.
+     */
+    bool operator!=(const header_field_iterator& rhs) const;
+
+    /**
+     * Dereference an iterator
+     * @return a HeaderField pointed to by this iterator
+     */
+    HeaderField operator*();
+
+    friend class HeaderField;
+    friend class Headers;
+};
+
+/**
+ * @brief A HeaderField is a class that contains the header field name and all of the values.
+ * @note You may have several HeaderFields with the same name for a given set of Headers.
+ */
+class HeaderField {
+private:
+  header_field_iterator iter_;
+  HeaderField(header_field_iterator iter) : iter_(iter) { }
+  
+public:
+  typedef unsigned int size_type;
+  typedef header_field_value_iterator iterator;
+
+  ~HeaderField();
+
+  /**
+    * Get the size of the HeaderField, this is the number of values associated with the header field.
+    * @return the number of values in this HeaderField.
+    */
+  size_type size() const;
+
+  /**
+    * Returns an iterator to the start of the values
+    * @return an iterator point to the start of this header field's values
+    */
+  iterator begin();
+
+  /**
+    * Returns an iterator to the end of this header field's values.
+    * @return an iterator that points beyond the last element of the header field's values.
+    */
+  iterator end();
+
+  /**
+   * Get the name of this HeaderField
+   * @return a HeaderFieldName object.
+   * @see HeaderFieldName which is a thin wrapper around a string to allow for case insensitive comparisons.
+   */
+  HeaderFieldName name() const;
+
+  /**
+    * Join all the values of this HeaderField into a single string seperated by the join string.
+    * @param an optional join string (defaults to ",")
+    * @return a string which is all of the joined values of this HeaderField
+    */
+  std::string values(const char *join = ",");
+
+  /**
+    * Join all the values of this HeaderField into a single string seperated by the join string.
+    * @param a join string
+    * @return a string which is all of the joined values of this HeaderField
+    */
+  std::string values(const std::string &join);
+
+  /**
+    * Join all the values of this HeaderField into a single string seperated by the join string.
+    * @param a optional join character
+    * @return a string which is all of the joined values of this HeaderField
+    */
+  std::string values(const char join);
+
+  /**
+    * Check if this HeaderField is empty (no values).
+    * @return a boolean value representing whether or not the header field has values.
+    */
+  bool empty();
+
+  /**
+   * Remove all values from this HeaderField
+   * @return true if the clear succeeds.
+   */
+  bool clear();
+
+  /**
+   * Remove a single value from this HeaderField which is pointed to by the given iterator
+   * @param an iterator which points to a single HeaderField value.
+   * @return true if the header value was successfully erased.
+   */
+  bool erase(iterator it);
+
+  /**
+   * Append a value or a seperated list of values to this HeaderField
+   * @param a string containing the value(s).
+   * @return true if the values was appended.
+   */
+  bool append(const std::string &value);
+
+  /**
+   * Append a value or a seperated list of values to this HeaderField
+   * @param a string containing the value.
+   * @param the length of the value that is being appended.
+   * @return true if the values was appended.
+   */
+  bool append(const char *value, int length = -1);
+
+  /**
+   * Change the name of this HeaderField to the given key.
+   * @param string - the new name of the header field
+   * @return true if the header field name was successfully changed.
+   */
+  bool setName(const std::string &str);
+
+  /**
+   * Compares the name of the header field only (not the values).
+   * @note This is a case insensitive comparison.
+   * @return true if the name is equal (case insensitive comparison).
+   */
+  bool operator==(const char *field_name) const;
+
+  /** Compares the name of the header field only (not the values).
+   * @note This is a case insensitive comparison.
+   * @return true if the name is equal (case insensitive comparison).
+   */
+  bool operator==(const std::string &field_name) const;
+
+  /** Compares the name of the header field only (not the values).
+   * @note This is a case insensitive comparison.
+   * @return true if the name is NOT equal (case insensitive comparison).
+   */
+  bool operator!=(const char *field_name) const;
+
+  /** Compares the name of the header field only (not the values).
+   * @note This is a case insensitive comparison.
+   * @return true if the name is NOT equal (case insensitive comparison).
+   */
+  bool operator!=(const std::string &field_name) const ;
+
+  /**
+   * Set the VALUES of the header field to the given value string
+   * @param string - the values to set on the current header field
+   * @return true if the value is sucessfully changed.
+   */
+  bool operator=(const std::string &field_value);
+
+  /**
+   * Set the VALUES of the header field to the given value string
+   * @param the values to set on the current header field
+   * @return true if the value is sucessfully changed.
+   */
+  bool operator=(const char *field_value);
+
+  /**
+    * Get the index value from this HeaderField
+    * @param the index to retrieve a copy of
+    * @return a copy of the string which is the index^th value in this HeaderField
+    * @note as currently written this returns an immutable string, it will NOT allow you to
+    * change the value.
+    */
+  std::string operator[](const int index);
+
+  /**
+    * Get a string representing all the header field's values
+    * @return a string representation of all the header fields
+    */
+  friend std::ostream& operator<<(std::ostream& os, HeaderField& obj);
+
+  /**
+    * Get a string representing all the header field's values.
+    * @return a string representation of all the header fields
+    */
+  std::string str();
+  friend class Headers;
+  friend class header_field_iterator;
+};
+
+/**
+ * @brief Encapsulates the headers portion of a request or response.
+ */
+class Headers: noncopyable {
+public:
+  /**
+   * Constructor for Headers. This creates a "detached" headers, i.e., not tied to any transaction.
+   */
+  Headers();
+
+  /**
+   * Constructor for Headers, this shouldn't be used directly unless you're trying to mix the C++ and C apis.
+   * @param bufp the TSMBuffer associated with the headers
+   * @param mloc the TSMLoc associated with the headers.
+   * @warning This should only be used if you're mixing the C++ and C apis, it will be constructed automatically if using only the C++ api.
+   */
+  Headers(void *bufp, void *mloc);
+
+  /**
+    * Context Values are a way to share data between plugins, the key is always a string
+    * and the value can be a shared_ptr to any type that extends ContextValue.
+    * @param bufp the TSMBuffer associated with the headers
+    * @param mloc the TSMLoc associated with the headers.
+    * @warning This should only be used if you're mixing the C++ and C apis.
+    */
+  void reset(void *bufp, void *mloc);
+
+  /**
+    * Check if the header class has been initialized. If you're only using the C++ api then this
+    * should always return true.
+    * @return a boolean value representing whether or not the Headers have been initialized..
+    */
+  bool isInitialized() const;
+
+  typedef unsigned int size_type;
+  typedef header_field_iterator iterator;
+
+  /**
+    * Check if the headers are empty
+    * @return a boolean value representing whether or not the Headers are empty
+    */
+  bool empty();
+
+  /**
+    * Get the size of the headers (the number of HeaderFields).
+    * @return the number of HeaderFields
+    */
+  size_type size() const;
+
+  /**
+    * Get the size of the headers (the number of HeaderFields).
+    * @return the number of HeaderFields
+    */
+  size_type lengthBytes() const;
+
+  /**
+    * Returns an iterator to the start of the HeaderFields.
+    * @return an iterator point to the start of the header fields.
+    */
+  iterator begin();
+
+  /**
+    * Returns an iterator to the end of the HeaderFields (beyond the last element).
+    * @return an iterator that points beyond the last element in the header fields.
+    */
+  iterator end();
+
+  /**
+    * Clears all headers.
+    * @return true if the headers were succesfully cleared.
+    */
+  bool clear();
+
+  /**
+    * Erase a single header field pointed to by an iterator
+    * @param an iterator pointing to a header field.
+    * @return true if the header field pointed to by the iterator was erased.
+    */
+  bool erase(iterator it);
+
+  /**
+    * Erase all headers whose name matches key (this is a case insensitive match).
+    * @param the name of the header fields to erase
+    * @return the number of elements erased that matched the key
+    */
+  size_type erase(const std::string &key);
+
+  /**
+    * Erase all headers whose name matches key (this is a case insensitive match).
+    * @param the name of the header fields to erase
+    * @param the length of the key (optional).
+    * @return the number of elements erased that matched the key
+    */
+  size_type erase(const char *key, int length = -1);
+
+  /**
+    * Count all headers whose name matches key (this is a case insensitive match).
+    * @param the name of the header fields to erase
+    * @param the length of the key (optional).
+    * @return the number of elements erased that matched the key
+    */
+  size_type count(const char *key, int length = -1);
+
+  /**
+    * Count all headers whose name matches key (this is a case insensitive match).
+    * @param the name of the header fields to count
+    * @return the number of elements whose name is key.
+    */
+  size_type count(const std::string &key);
+
+  /**
+    * Join all headers whos name is key with the optionally specified join string
+    * @param the name of the headers to join into a single string
+    * @param an optional join string (defaults to ",")
+    * @return a string which is all of the joined values of headers matching key.
+    */
+  std::string values(const std::string &key, const char *join = ",");
+
+  /**
+    * Join all headers whos name is key with the optionally specified join string
+    * @param the name of the headers to join into a single string
+    * @param the string to join the fields with
+    * @return a string which is all of the joined values of headers matching key.
+    */
+  std::string values(const std::string &key, const std::string &join);
+
+  /**
+    * Join all headers whos name is key with the optionally specified join character
+    * @param the name of the headers to join into a single string
+    * @param the join character.
+    * @return a string which is all of the joined values of headers matching key.
+    */
+  std::string values(const std::string &key, const char join);
+
+  /**
+    * Returns the value at given position of header with given name
+    * @param name of header
+    * @param position of value 
+    * @return value
+    */
+  std::string value(const std::string key, size_type index = 0);
+
+  /**
+    * Returns an iterator to the first HeaderField with the name key.
+    * @param key the name of first header field ot find.
+    * @return an iterator that points to the first matching header field with name key.
+    */
+  iterator find(const std::string &key);
+
+  /**
+    * Returns an iterator to the first HeaderField with the name key.
+    * @param key the name of first header field ot find.
+    * @param the length of the key specified (optional).
+    * @return an iterator that points to the first matching header field with name key.
+    */
+  iterator find(const char *key, int length = -1);
+
+  /**
+    * Append a HeaderField.
+    * @param key the name of the header field to append
+    * @param value the value of the header field to append
+    * @return an iterator to the appended header field or the end() iterator if append fails.
+    */
+  iterator append(const std::string &key, const std::string &value);
+
+  /**
+    * Erase all headers with name specified by key and then re-create the header with the specified values.
+    * @param key the name of the header field to erased and re-created.
+    * @param value the value of the header field to set.
+    * @return an iterator to the new header field or the end() iterator if append fails.
+    */
+  iterator set(const std::string &key, const std::string &value);
+
+  /**
+    * Set the header field values to the value given, the header field will be created
+    * if it does not already exist.
+    * @param key the name of the header field whose value to set.
+    * @return an iterator to the new header field or the end() iterator if append fails.
+    * @warning This will create a header field with the given name, thus it should not be
+    * used to check for the existance of a header, use count() or find() instead.
+    */
+  HeaderField operator[](const std::string &key);
+
+  /**
+    * Get a human-readable/log-friendly string representing all the header fields.
+    * @return a string representation of all the header fields
+    */
+  std::string str();
+
+  /**
+    * Get a string that can be put on the wire
+    * @return a string representation of all the header fields
+    */
+  std::string wireStr();
+
+  friend std::ostream& operator<<(std::ostream &os, Headers &obj);
+
+  ~Headers();
+private:
+  HeadersState *state_;
+  friend class Request;
+  friend class ClientRequest;
+  friend class Response;
+};
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/HttpMethod.h b/lib/atscppapi/src/include/atscppapi/HttpMethod.h
new file mode 100644
index 00000000..44029f79
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/HttpMethod.h
@@ -0,0 +1,59 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file HttpMethod.h
+ * @brief Contains an enumeration and printable strings for Http Methods.
+ */
+#pragma once
+#ifndef ATSCPPAPI_HTTP_METHOD_H_
+#define ATSCPPAPI_HTTP_METHOD_H_
+
+#include <string>
+
+namespace atscppapi {
+
+/**
+ * An enumeration of all available Http Methods.
+ */
+enum HttpMethod {
+  HTTP_METHOD_UNKNOWN = 0,
+  HTTP_METHOD_GET,
+  HTTP_METHOD_POST,
+  HTTP_METHOD_HEAD,
+  HTTP_METHOD_CONNECT,
+  HTTP_METHOD_DELETE,
+  HTTP_METHOD_ICP_QUERY,
+  HTTP_METHOD_OPTIONS,
+  HTTP_METHOD_PURGE,
+  HTTP_METHOD_PUT,
+  HTTP_METHOD_TRACE,
+  HTTP_METHOD_PUSH
+};
+
+/**
+ * An array of printable strings representing of the HttpMethod
+ * \code
+ * cout << HTTP_METHOD_STRINGS[HTTP_METHOD_GET] << endl;
+ * \endcode
+ */
+extern const std::string HTTP_METHOD_STRINGS[];
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/HttpStatus.h b/lib/atscppapi/src/include/atscppapi/HttpStatus.h
new file mode 100644
index 00000000..e1ba25b8
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/HttpStatus.h
@@ -0,0 +1,104 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file HttpStatus.h
+ * @brief Contains an enumeration and printable strings for Http Status codes.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_HTTP_STATUS_H_
+#define ATSCPPAPI_HTTP_STATUS_H_
+
+#include <string>
+
+namespace atscppapi {
+
+/**
+ * An enumeration of all available Http Status Codes.
+ */
+enum HttpStatus
+{
+  HTTP_STATUS_UNKNOWN = 0,
+
+  HTTP_STATUS_CONTINUE = 100,
+  HTTP_STATUS_SWITCHING_PROTOCOL = 101,
+
+  HTTP_STATUS_OK = 200,
+  HTTP_STATUS_CREATED = 201,
+  HTTP_STATUS_ACCEPTED = 202,
+  HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
+  HTTP_STATUS_NO_CONTENT = 204,
+  HTTP_STATUS_RESET_CONTENT = 205,
+  HTTP_STATUS_PARTIAL_CONTENT = 206,
+  HTTP_STATUS_MULTI_STATUS = 207,
+  HTTP_STATUS_ALREADY_REPORTED = 208,
+  HTTP_STATUS_IM_USED = 211,
+
+  HTTP_STATUS_MULTIPLE_CHOICES = 300,
+  HTTP_STATUS_MOVED_PERMANENTLY = 301,
+  HTTP_STATUS_MOVED_TEMPORARILY = 302,
+  HTTP_STATUS_SEE_OTHER = 303,
+  HTTP_STATUS_NOT_MODIFIED = 304,
+  HTTP_STATUS_USE_PROXY = 305,
+  HTTP_STATUS_TEMPORARY_REDIRECT = 307,
+  HTTP_STATUS_PERMANENT_REDIRECT = 308,
+
+  HTTP_STATUS_BAD_REQUEST = 400,
+  HTTP_STATUS_UNAUTHORIZED = 401,
+  HTTP_STATUS_PAYMENT_REQUIRED = 402,
+  HTTP_STATUS_FORBIDDEN = 403,
+  HTTP_STATUS_NOT_FOUND = 404,
+  HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
+  HTTP_STATUS_NOT_ACCEPTABLE = 406,
+  HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
+  HTTP_STATUS_REQUEST_TIMEOUT = 408,
+  HTTP_STATUS_CONFLICT = 409,
+  HTTP_STATUS_GONE = 410,
+  HTTP_STATUS_LENGTH_REQUIRED = 411,
+  HTTP_STATUS_PRECONDITION_FAILED = 412,
+  HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
+  HTTP_STATUS_REQUEST_URI_TOO_LONG = 414,
+  HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
+  HTTP_STATUS_REQUESTED_RANGE_NOT_SATISFIABLE = 416,
+  HTTP_STATUS_EXPECTATION_FAILED = 417,
+  HTTP_STATUS_UNPROCESSABLE_ENTITY = 422,
+  HTTP_STATUS_LOCKED = 423,
+  HTTP_STATUS_FAILED_DEPENDENCY = 424,
+  HTTP_STATUS_UPGRADE_REQUIRED = 426,
+  HTTP_STATUS_PRECONDITION_REQUIRED = 428,
+  HTTP_STATUS_TOO_MANY_REQUESTS = 429,
+  HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
+
+  HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
+  HTTP_STATUS_NOT_IMPLEMENTED = 501,
+  HTTP_STATUS_BAD_GATEWAY = 502,
+  HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
+  HTTP_STATUS_GATEWAY_TIMEOUT = 504,
+  HTTP_STATUS_HTTPVER_NOT_SUPPORTED = 505,
+  HTTP_STATUS_VARIANT_ALSO_NEGOTIATES = 506,
+  HTTP_STATUS_INSUFFICIENT_STORAGE = 507,
+  HTTP_STATUS_LOOP_DETECTED = 508,
+  HTTP_STATUS_NOT_EXTENDED = 510,
+  HTTP_STATUS_NETWORK_AUTHENTICATION_REQUIRED = 511
+
+};
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/HttpVersion.h b/lib/atscppapi/src/include/atscppapi/HttpVersion.h
new file mode 100644
index 00000000..fdbd6397
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/HttpVersion.h
@@ -0,0 +1,52 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file HttpVersion.h
+ * @brief Contains an enumeration and printable strings for Http Versions.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_HTTP_VERSION_H_
+#define ATSCPPAPI_HTTP_VERSION_H_
+
+#include <string>
+
+namespace atscppapi {
+
+/**
+ * An enumeration of all available Http Versions.
+ */
+enum HttpVersion {
+  HTTP_VERSION_UNKNOWN = 0,
+  HTTP_VERSION_0_9,
+  HTTP_VERSION_1_0,
+  HTTP_VERSION_1_1,
+};
+
+/**
+ * An array of printable strings representing of the HttpVersion
+ * \code
+ * cout << HTTP_VERSION_STRINGS[HTTP_VERSION_1_1] << endl;
+ * \endcode
+ */
+extern const std::string HTTP_VERSION_STRINGS[];
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/InterceptPlugin.h b/lib/atscppapi/src/include/atscppapi/InterceptPlugin.h
new file mode 100644
index 00000000..da8d5a48
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/InterceptPlugin.h
@@ -0,0 +1,101 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file InterceptPlugin.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_INTERCEPT_PLUGIN_H_
+#define ATSCPPAPI_INTERCEPT_PLUGIN_H_
+
+#include <string>
+#include <atscppapi/Transaction.h>
+#include <atscppapi/TransactionPlugin.h>
+
+namespace atscppapi {
+
+
+
+/**
+ * Allows a plugin to act as a server and return the response. This
+ * plugin can be created in read request headers hook (pre or post
+ * remap).
+ */
+class InterceptPlugin : public TransactionPlugin {
+protected:
+  /**
+   * The available types of intercepts.
+   */
+  enum Type {
+    SERVER_INTERCEPT = 0, /**< Plugin will act as origin */
+    TRANSACTION_INTERCEPT /**< Plugin will act as cache and origin (on cache miss) */
+  };
+
+  /** a plugin must implement this interface, it cannot be constructed directly */
+  InterceptPlugin(Transaction &transaction, Type type);
+
+public:
+  enum RequestDataType {
+    REQUEST_HEADER = 0,
+    REQUEST_BODY
+  };
+
+  /**
+   * A method that you must implement when writing an InterceptPlugin, this method will be
+   * invoked whenever client request data is read.
+   */
+  virtual void consume(const std::string &data, RequestDataType type) = 0;
+
+  /**
+   * A method that you must implement when writing an InterceptPlugin, this method
+   * will be invoked when the client request is deemed complete.
+   */
+  virtual void handleInputComplete() = 0;
+
+  /** Should be called only after request header has completely been consumed */
+  Headers &getRequestHeaders();
+
+  virtual ~InterceptPlugin();
+
+  struct State; /** Internal use only */
+
+protected:
+  /**
+   * This method is how an InterceptPlugin will send output back to
+   * the client.
+   */
+  bool produce(const void *data, int data_size);
+
+  bool produce(const std::string &data) { return produce(data.data(), data.size()); }
+
+  bool setOutputComplete();
+
+private:
+  State *state_;
+  
+  bool doRead();
+  void handleEvent(int, void *);
+
+  friend class utils::internal;
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_INTERCEPT_PLUGIN_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/Logger.h b/lib/atscppapi/src/include/atscppapi/Logger.h
new file mode 100644
index 00000000..f5227d03
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Logger.h
@@ -0,0 +1,268 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Logger.h
+ * @brief Helpers and Classes related to Logging
+ *
+ * @warning Log rolling doesn't work correctly in 3.2.x see:
+ *   https://issues.apache.org/jira/browse/TS-1813
+ *   Apply the patch in TS-1813 to correct log rolling in 3.2.x
+ *
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_LOGGER_H_
+#define ATSCPPAPI_LOGGER_H_
+
+#include <string>
+#include <atscppapi/noncopyable.h>
+
+#if !defined(ATSCPPAPI_PRINTFLIKE)
+#if defined(__GNUC__) || defined(__clang__)
+/**
+ * This macro will tell GCC that the function takes printf like arugments
+ * this is helpful because it can produce better warning and error messages
+ * when a user doesn't use the methods correctly.
+ *
+ * @private
+ */
+#define ATSCPPAPI_PRINTFLIKE(fmt, arg) __attribute__((format(printf, fmt, arg)))
+#else
+#define ATSCPPAPI_PRINTFLIKE(fmt, arg)
+#endif
+#endif
+
+/**
+ * A helper macro for Logger objects that allows you to easily add a debug level message
+ * which will include file, line, and function name with the message. It's very easy to use:
+ * \code
+ *  // Suppose you have already created a Logger named logger:
+ *  LOG_DEBUG(logger, "This is a test DEBUG message: %s", "hello");
+ *  // Outputs [file.cc:125, function()] [DEBUG] This is a test DEBUG message: hello.
+ * \endcode
+ */
+#define LOG_DEBUG(log, fmt, ...) \
+  do { \
+    (log).logDebug("[%s:%d, %s()] " fmt, __FILE__, __LINE__, __FUNCTION__, ## __VA_ARGS__); \
+  } while (false)
+
+/**
+ * A helper macro for Logger objects that allows you to easily add a info level message
+ * which will include file, line, and function name with the message. See example in LOG_DEBUG
+ */
+#define LOG_INFO(log, fmt, ...) \
+  do { \
+    (log).logInfo("[%s:%d, %s()] " fmt, __FILE__, __LINE__, __FUNCTION__, ## __VA_ARGS__); \
+  } while (false)
+
+/**
+ * A helper macro for Logger objects that allows you to easily add a error level message
+ * which will include file, line, and function name with the message.  See example in LOG_DEBUG
+ */
+#define LOG_ERROR(log, fmt, ...) \
+  do { \
+    (log).logError("[%s:%d, %s()] " fmt, __FILE__, __LINE__, __FUNCTION__, ## __VA_ARGS__); \
+  } while (false)
+
+/**
+ * We forward declare this because if we didn't we end up writing our
+ * own version to do the vsnprintf just to call TSDebug and have it do
+ * an unncessary vsnprintf.
+ *
+ * @private
+ */
+extern "C" void TSDebug(const char *tag, const char *fmt, ...) ATSCPPAPI_PRINTFLIKE(2,3);
+
+/**
+ * We forward declare this because if we didn't we end up writing our
+ * own version to do the vsnprintf just to call TSError and have it do
+ * an unncessary vsnprintf.
+ *
+ * @private
+ */
+extern "C" void TSError(const char *fmt, ...) ATSCPPAPI_PRINTFLIKE(1,2);
+
+// This is weird, but see the following:
+//   http://stackoverflow.com/questions/5641427/how-to-make-preprocessor-generate-a-string-for-line-keyword
+#define STRINGIFY0(x) #x
+#define STRINGIFY(x) STRINGIFY0(x)
+#define LINE_NO STRINGIFY(__LINE__)
+
+/**
+ * A helper macro to get access to the Diag messages available in traffic server. These can be enabled
+ * via traffic_server -T "tag.*" or since this macro includes the file can you further refine to an
+ * individual file or even a particular line! This can also be enabled via records.config.
+ */
+#define TS_DEBUG(tag, fmt, ...) \
+  do { \
+    TSDebug(tag "." __FILE__ ":" LINE_NO , "[%s()] " fmt, __FUNCTION__, ## __VA_ARGS__); \
+  } while (false)
+
+/**
+ * A helper macro to get access to the error.log messages available in traffic server. This
+ * will also output a DEBUG message visible via traffic_server -T "tag.*", or by enabling the
+ * tag in records.config.
+ */
+#define TS_ERROR(tag, fmt, ...) \
+  do { \
+    TS_DEBUG(tag, "[ERROR] " fmt, ## __VA_ARGS__); \
+    TSError("[%s] [%s:%d, %s()] " fmt, tag, __FILE__, __LINE__, __FUNCTION__, ## __VA_ARGS__); \
+  } while (false)
+
+namespace atscppapi {
+
+struct LoggerState;
+
+/**
+ * @brief Create log files that are automatically rolled and cleaned up as space is required.
+ *
+ * Log files created using the Logger class will be placed in the same directory as
+ * other log files, that directory is specified in records.config. All of the logging
+ * configuration such as max space available for all logs includes any logs created
+ * using the Logger class.
+ *
+ * Loggers are very easy to use and a full example is available in examples/logger_example/,
+ * a simple example is:
+ * \code
+ * // See Logger::init() for an explanation of the init() parameters.
+ * log.init("logger_example", true, true, Logger::LOG_LEVEL_DEBUG);
+ * // You have two ways to log to a logger, you can log directly on the object itself:
+ * log.logInfo("Hello World from: %s", argv[0]);
+ * // Alternatively you can take advantage of the super helper macros for logging
+ * // that will include the file, function, and line number automatically as part
+ * // of the log message:
+ * LOG_INFO(log, "Hello World with more info from: %s", argv[0]);
+ * \endcode
+ *
+ * @warning Log rolling doesn't work correctly in 3.2.x see:
+ *   https://issues.apache.org/jira/browse/TS-1813
+ *   Apply the patch in TS-1813 to correct log rolling in 3.2.x
+ *
+ */
+class Logger : noncopyable {
+public:
+
+  /**
+   * The available log levels
+   */
+  enum LogLevel {
+    LOG_LEVEL_NO_LOG = 128, /**< This log level is used to disable all logging */
+    LOG_LEVEL_DEBUG = 1, /**< This log level is used for DEBUG level logging (DEBUG + INFO + ERROR) */
+    LOG_LEVEL_INFO = 2, /**< This log level is used for INFO level logging (INFO + ERROR) */
+    LOG_LEVEL_ERROR = 4 /**< This log level is used for ERROR level logging (ERROR ONLY) */
+  };
+
+  Logger();
+  ~Logger();
+
+  /**
+   * You must always init() a Logger before you begin logging. If you do not call init() nothing will
+   * happen.
+   *
+   * @param file The name of the file to create in the logging directory, if you do not specify an extension .log will be used.
+   * @param add_timestamp Prepend a timestamp to the log lines, the default value is true.
+   * @param rename_file If a file already exists by the same name it will attempt to rename using a scheme that appends .1, .2, and so on,
+   *   the default value for this argument is true.
+   * @param level the default log level to use when creating the logger, this is set to LOG_LEVEL_INFO by default.
+   * @param rolling_enabled if set to true this will enable log rolling on a periodic basis, this is enabled by default.
+   * @param rolling_interval_seconds how frequently to roll the longs in seconds, this is set to 3600 by default (one hour).
+   * @return returns true if the logger was successfully created and initialized.
+   * @see LogLevel
+   */
+  bool init(const std::string &file, bool add_timestamp = true, bool rename_file = true,
+      LogLevel level = LOG_LEVEL_INFO, bool rolling_enabled = true, int rolling_interval_seconds = 3600);
+
+  /**
+   * Allows you to change the rolling interval in seconds
+   * @param seconds the number of seconds between rolls
+   */
+  void setRollingIntervalSeconds(int seconds);
+
+  /**
+   * @return the number of seconds between log rolls.
+   */
+  int getRollingIntervalSeconds() const;
+
+  /**
+   * Enables or disables log rolling
+   * @param enabled true to enable log rolling, false to disable it.
+   */
+  void setRollingEnabled(bool enabled);
+
+  /**
+   * @return A boolean value which represents whether rolling is enabled or disabled.
+   */
+  bool isRollingEnabled() const;
+
+  /**
+   * Change the log level
+   *
+   * @param level the new log level to use
+   * @see LogLevel
+   */
+  void setLogLevel(Logger::LogLevel level);
+
+  /**
+   * @return The current log level.
+   * @see LogLevel
+   */
+  Logger::LogLevel getLogLevel() const;
+
+  /**
+   * This method allows you to flush any log lines that might have been buffered.
+   * @warning This method can cause serious performance degredation so you should only
+   * use it when absolutely necessary.
+   */
+  void flush();
+
+  /**
+   * This method writes a DEBUG level message to the log file, the LOG_DEBUG
+   * macro in Logger.h should be used in favor of these when possible because it
+   * will produce a much more rich debug message.
+   *
+   * Sample usage:
+   * \code
+   * log.logDebug("Hello you are %d years old", 27);
+   * \endcode
+   */
+  void logDebug(const char *fmt, ...) ATSCPPAPI_PRINTFLIKE(2,3);
+
+  /**
+   * This method writes an INFO level message to the log file, the LOG_INFO
+   * macro in Logger.h should be used in favor of these when possible because it
+   * will produce a much more rich info message.
+   */
+  void logInfo(const char *fmt, ...) ATSCPPAPI_PRINTFLIKE(2,3);
+
+  /**
+   * This method writes an ERROR level message to the log file, the LOG_ERROR
+   * macro in Logger.h should be used in favor of these when possible because it
+   * will produce a much more rich error message.
+   */
+  void logError(const char *fmt, ...) ATSCPPAPI_PRINTFLIKE(2,3);
+private:
+  LoggerState *state_; /**< Internal state for the Logger */
+};
+
+} /* atscppapi */
+
+
+
+
+#endif /* ATSCPPAPI_LOGGER_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/Mutex.h b/lib/atscppapi/src/include/atscppapi/Mutex.h
new file mode 100644
index 00000000..6044477a
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Mutex.h
@@ -0,0 +1,250 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file Mutex.h
+ * @brief Contains Mutex related classes for creating a Mutex and locking a Mutex in a specific scope.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_MUTEX_H_
+#define ATSCPPAPI_MUTEX_H_
+
+#include <pthread.h>
+#include <atscppapi/noncopyable.h>
+#include <atscppapi/shared_ptr.h>
+
+namespace atscppapi {
+
+/**
+ * @brief A mutex is mutual exclusion: a blocking lock.
+ *
+ * The Mutex class uses pthreads for its implmentation.
+ *
+ * @see ScopedMutexLock
+ * @see ScopedMutexTryLock
+ * @see ScopedSharedMutexLock
+ * @see ScopedSharedMutexTryLock
+ */
+class Mutex: noncopyable {
+public:
+
+  /**
+   * The available types of Mutexes.
+   */
+  enum Type {
+    TYPE_NORMAL = 0, /**< This type of Mutex will deadlock if locked by a thread already holding the lock */
+    TYPE_RECURSIVE, /**< This type of Mutex will allow a thread holding the lock to lock it again; however, it must be unlocked the same number of times */
+    TYPE_ERROR_CHECK /**< This type of Mutex will return errno = EDEADLCK if a thread would deadlock by taking the lock after it already holds it */
+  };
+
+  /**
+   * Create a mutex
+   *
+   * @param type The Type of Mutex to create, the default is TYPE_NORMAL.
+   * @see Type
+   */
+  Mutex(Type type = TYPE_NORMAL) {
+    pthread_mutexattr_t attr;
+    pthread_mutexattr_init(&attr);
+
+    switch(type) {
+    case TYPE_RECURSIVE:
+     pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+     break;
+    case TYPE_ERROR_CHECK:
+     pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
+     break;
+    case TYPE_NORMAL:
+    default:
+     pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
+     break;
+    }
+
+    pthread_mutex_init(&mutex, &attr);
+  }
+
+  ~Mutex() {
+    pthread_mutex_destroy(&mutex);
+  }
+
+  /**
+   * Try to take the lock, this call will NOT block if the mutex cannot be taken.
+   * @return Returns true if the lock was taken, false if it was not. This call obviously will not block.
+   */
+  bool tryLock() {
+    return !pthread_mutex_trylock(&mutex);
+  }
+
+  /**
+   * Block until the lock is taken, when this call returns the thread will be holding the lock.
+   */
+  void lock() {
+    pthread_mutex_lock(&mutex);
+  }
+
+  /**
+   * Unlock the lock, this call is nonblocking.
+   */
+  void unlock() {
+    pthread_mutex_unlock(&mutex);
+  }
+private:
+  pthread_mutex_t mutex; /**< Internal mutex identifier */
+};
+
+/**
+ * @brief Take a Mutex reference and lock inside a scope and unlock when the scope is exited.
+ *
+ * This is an RAII implementation which will lock a mutex at the start of the
+ * scope and unlock it when the scope is exited.
+ *
+ * @see Mutex
+ */
+class ScopedMutexLock: noncopyable {
+public:
+  /**
+   * Create the scoped mutex lock, once this object is constructed the lock will be held by the thread.
+   * @param mutex a reference to a Mutex.
+   */
+  explicit ScopedMutexLock(Mutex &mutex) :
+      mutex_(mutex) {
+    mutex_.lock();
+  }
+
+  /**
+   * Unlock the mutex.
+   */
+  ~ScopedMutexLock() {
+    mutex_.unlock();
+  }
+private:
+  Mutex &mutex_;
+};
+
+/**
+ * @brief Take a shared_ptr to a Mutex and lock inside a scope and unlock when the scope is exited.
+ *
+ * This is an RAII implementation which will lock a mutex at the start of the
+ * scope and unlock it when the scope is exited.
+ *
+ * @see Mutex
+ */
+class ScopedSharedMutexLock: noncopyable {
+public:
+  /**
+   * Create the scoped mutex lock, once this object is constructed the lock will be held by the thread.
+   * @param mutex a shared pointer to a Mutex.
+   */
+  explicit ScopedSharedMutexLock(shared_ptr<Mutex> mutex) :
+      mutex_(mutex) {
+    mutex_->lock();
+  }
+
+  /**
+   * Unlock the mutex.
+   */
+  ~ScopedSharedMutexLock() {
+    mutex_->unlock();
+  }
+private:
+  shared_ptr<Mutex> mutex_;
+};
+
+/**
+ * @brief Take a Mutex reference and try to lock inside a scope and unlock when the scope is exited (if the lock was taken).
+ *
+ * This is an RAII implementation which will lock a mutex at the start of the
+ * scope and unlock it when the scope is exited if the lock was taken.
+ *
+ * @see Mutex
+ */
+class ScopedMutexTryLock: noncopyable {
+public:
+  /**
+   * Try to create the scoped mutex lock, if you should check hasLock() to determine if this object was successfully able to take the lock.
+   * @param mutex a shared pointer to a Mutex.
+   */
+  explicit ScopedMutexTryLock(Mutex &mutex) :
+      mutex_(mutex), has_lock_(false) {
+    has_lock_ = mutex_.tryLock();
+  }
+
+  /**
+   * Unlock the mutex (if we hold the lock)
+   */
+  ~ScopedMutexTryLock() {
+    if (has_lock_) {
+      mutex_.unlock();
+    }
+  }
+
+  /**
+   * @return True if the lock was taken, False if it was not taken.
+   */
+  bool hasLock() {
+    return has_lock_;
+  }
+private:
+  Mutex &mutex_;
+  bool has_lock_;
+};
+
+/**
+ * @brief Take a shared_ptr to a Mutex and try to lock inside a scope and unlock when the scope is exited (if the lock was taken).
+ *
+ * This is an RAII implementation which will lock a mutex at the start of the
+ * scope and unlock it when the scope is exited if the lock was taken.
+ *
+ * @see Mutex
+ */
+class ScopedSharedMutexTryLock: noncopyable {
+public:
+  /**
+   * Try to create the scoped mutex lock, if you should check hasLock() to determine if this object was successfully able to take the lock.
+   * @param mutex a shared pointer to a Mutex.
+   */
+  explicit ScopedSharedMutexTryLock(shared_ptr<Mutex> mutex) :
+      mutex_(mutex), has_lock_(false) {
+    has_lock_ = mutex_->tryLock();
+  }
+
+  /**
+   * Unlock the mutex (if we hold the lock)
+   */
+  ~ScopedSharedMutexTryLock() {
+    if (has_lock_) {
+      mutex_->unlock();
+    }
+  }
+
+  /**
+   * @return True if the lock was taken, False if it was not taken.
+   */
+  bool hasLock() {
+    return has_lock_;
+  }
+private:
+  shared_ptr<Mutex> mutex_;
+  bool has_lock_;
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_MUTEX_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/Plugin.h b/lib/atscppapi/src/include/atscppapi/Plugin.h
new file mode 100644
index 00000000..677a3bd0
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Plugin.h
@@ -0,0 +1,106 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Plugin.h
+ *
+ * @brief Contains the base interface used in creating Global and Transaciton plugins.
+ * \note This interface can never be implemented directly, it should be implemented
+ *   through extending GlobalPlugin, TransactionPlugin, or TransformationPlugin.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_PLUGIN_H_
+#define ATSCPPAPI_PLUGIN_H_
+
+#include <atscppapi/Transaction.h>
+#include <atscppapi/noncopyable.h>
+
+namespace atscppapi {
+
+/**
+ * @brief The base interface used when creating a Plugin.
+ *
+ * \note This interface can never be implemented directly, it should be implemented
+ *   through extending GlobalPlugin, TransactionPlugin, or TransformationPlugin.
+ *
+ * @see TransactionPlugin
+ * @see GlobalPlugin
+ * @see TransformationPlugin
+ */
+class Plugin: noncopyable {
+public:
+  /**
+   * A enumeration of the available types of Hooks. These are used with GlobalPlugin::registerHook()
+   * and TransactionPlugin::registerHook().
+   */
+  enum HookType {
+    HOOK_READ_REQUEST_HEADERS_PRE_REMAP = 0, /**< This hook will be fired before remap has occured. */
+    HOOK_READ_REQUEST_HEADERS_POST_REMAP, /**< This hook will be fired directly after remap has occured. */
+    HOOK_SEND_REQUEST_HEADERS, /**< This hook will be fired right before request headers are sent to the origin */
+    HOOK_READ_RESPONSE_HEADERS, /**< This hook will be fired right after response headers have been read from the origin */
+    HOOK_SEND_RESPONSE_HEADERS, /**< This hook will be fired right before the response headers are sent to the client */
+    HOOK_OS_DNS /**< This hook will be fired right after the OS DNS lookup */
+  };
+
+  /**
+   * This method must be implemented when you hook HOOK_READ_REQUEST_HEADERS_PRE_REMAP
+   */
+  virtual void handleReadRequestHeadersPreRemap(Transaction &transaction) { transaction.resume(); };
+
+  /**
+   * This method must be implemented when you hook HOOK_READ_REQUEST_HEADERS_POST_REMAP
+   */
+  virtual void handleReadRequestHeadersPostRemap(Transaction &transaction) { transaction.resume(); };
+
+  /**
+   * This method must be implemented when you hook HOOK_SEND_REQUEST_HEADERS
+   */
+  virtual void handleSendRequestHeaders(Transaction &transaction) { transaction.resume(); };
+
+  /**
+   * This method must be implemented when you hook HOOK_READ_RESPONSE_HEADERS
+   */
+  virtual void handleReadResponseHeaders(Transaction &transaction) { transaction.resume(); };
+
+  /**
+   * This method must be implemented when you hook HOOK_SEND_RESPONSE_HEADERS
+   */
+  virtual void handleSendResponseHeaders(Transaction &transaction) { transaction.resume(); };
+
+  /**
+   * This method must be implemented when you hook HOOK_OS_DNS
+   */
+  virtual void handleOsDns(Transaction &transaction) { transaction.resume(); };
+
+  virtual ~Plugin() { };
+protected:
+  /**
+  * \note This interface can never be implemented directly, it should be implemented
+  *   through extending GlobalPlugin, TransactionPlugin, or TransformationPlugin.
+  *
+  * @private
+  */
+  Plugin() { };
+};
+
+/**< Human readable strings for each HookType, you can access them as HOOK_TYPE_STRINGS[HOOK_OS_DNS] for example. */
+extern const std::string HOOK_TYPE_STRINGS[];
+
+} /* atscppapi */
+
+#endif /* ATSCPPAPI_GLOBALPLUGIN_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/PluginInit.h b/lib/atscppapi/src/include/atscppapi/PluginInit.h
new file mode 100644
index 00000000..ffa2f910
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/PluginInit.h
@@ -0,0 +1,57 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file PluginInit.h
+ * @brief Provides hooks that plugins have to implement. ATS will invoke these when loading the plugin .so files.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_PLUGININIT_H_
+#define ATSCPPAPI_PLUGININIT_H_
+
+#include <atscppapi/utils.h>
+
+extern "C" {
+
+/** 
+ * Invoked for "general" plugins - listed in plugin.config. The arguments in the
+ * plugin.config line are provided in this invocation.
+ *
+ * @param argc Count of arguments
+ * @param argv Array of pointers pointing to arguments
+ */
+void TSPluginInit(int argc, const char *argv[]);
+
+enum TsReturnCode { TS_ERROR = -1, TS_SUCCESS = 0 };
+
+/** 
+ * Invoked for remap plugins - listed in remap.config. The arguments provided as @pparam
+ * in the remap.config line are provided in this invocation.
+ *
+ * @param argc Count of arguments
+ * @param argv Array of pointers pointing to arguments
+ * @param instance_handle Should be passed to the RemapPlugin constructor
+ * @param errbuf Not used
+ * @param errbuf_size Not used
+ */
+TsReturnCode TSRemapNewInstance(int argc, char *argv[], void **instance_handle, char *errbuf, int errbuf_size);
+
+}
+
+
+#endif /* ATSCPPAPI_PLUGININIT_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/RemapPlugin.h b/lib/atscppapi/src/include/atscppapi/RemapPlugin.h
new file mode 100644
index 00000000..2f33143a
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/RemapPlugin.h
@@ -0,0 +1,70 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file RemapPlugin.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_REMAP_PLUGIN_H_
+#define ATSCPPAPI_REMAP_PLUGIN_H_
+
+#include "atscppapi/Transaction.h"
+#include "atscppapi/Url.h"
+#include "atscppapi/utils.h"
+
+namespace atscppapi {
+
+/** 
+ * @brief Base class that remap plugins should extend.
+ */
+class RemapPlugin {
+public:
+  /**
+   * Constructor
+   * 
+   * @param instance_handle The instance_handle argument received in TSRemapInit() should be passed here.
+   */
+  RemapPlugin(void **instance_handle);
+
+  enum Result { RESULT_ERROR = 0, RESULT_NO_REMAP, RESULT_DID_REMAP, RESULT_NO_REMAP_STOP,
+                RESULT_DID_REMAP_STOP };
+
+  /** 
+   * Invoked when a request matches the remap.config line - implementation should perform the
+   * remap. The client's URL is in the transaction and that's where it should be modified.
+   * 
+   * @param map_from_url The map from URL specified in the remap.config line.
+   * @param map_to_url The map to URL specified in the remap.config line.
+   * @param transaction Transaction
+   * @param redirect Output argument that should be set to true if the (new) url should be used
+   *                 as a redirect. 
+   *
+   * @return Result of the remap - will dictate futher processing by the system.
+   */
+  virtual Result doRemap(const Url &map_from_url ATSCPPAPI_UNUSED, const Url &map_to_url ATSCPPAPI_UNUSED, Transaction &transaction ATSCPPAPI_UNUSED,
+                         bool &redirect ATSCPPAPI_UNUSED) {
+    return RESULT_NO_REMAP;
+  }
+
+  virtual ~RemapPlugin() { }
+};
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/Request.h b/lib/atscppapi/src/include/atscppapi/Request.h
new file mode 100644
index 00000000..8831725f
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Request.h
@@ -0,0 +1,72 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Request.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_REQUEST_H_
+#define ATSCPPAPI_REQUEST_H_
+
+#include <atscppapi/Headers.h>
+#include <atscppapi/HttpVersion.h>
+#include <atscppapi/HttpMethod.h>
+#include <atscppapi/Url.h>
+#include <atscppapi/noncopyable.h>
+
+namespace atscppapi {
+
+class Transaction;
+struct RequestState;
+
+/**
+ * @brief Encapsulates a request.
+ */
+class Request: noncopyable {
+public:
+  Request();
+
+  /**
+   * Constructed with an initial URL.
+   */
+  Request(const std::string &url, HttpMethod method = HTTP_METHOD_GET, HttpVersion version = HTTP_VERSION_1_1); 
+
+  /** @return HTTP method of the request */
+  HttpMethod getMethod() const;
+
+  /** @return URL of the request */
+  Url &getUrl();
+
+  /** @return HTTP version of the request */
+  HttpVersion getVersion() const;
+
+  /** @return Headers of the request */
+  Headers &getHeaders() const;
+
+  ~Request();
+private:
+  Request(void *hdr_buf, void *hdr_loc);
+  RequestState *state_;
+  void init(void *hdr_buf, void *hdr_loc);
+  friend class Transaction;
+  friend class ClientRequest;
+};
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/Response.h b/lib/atscppapi/src/include/atscppapi/Response.h
new file mode 100644
index 00000000..c6c68f84
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Response.h
@@ -0,0 +1,71 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Response.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_RESPONSE_H_
+#define ATSCPPAPI_RESPONSE_H_
+
+#include <atscppapi/Headers.h>
+#include <atscppapi/HttpVersion.h>
+#include <atscppapi/HttpStatus.h>
+
+namespace atscppapi {
+
+// forward declarations
+struct ResponseState;
+namespace utils { class internal; }
+
+/**
+ * @brief Encapsulates a response.
+ */
+class Response: noncopyable {
+public:
+  Response();
+
+  /** @return HTTP version of the response */
+  HttpVersion getVersion() const;
+
+  /** @return Status code of the response */
+  HttpStatus getStatusCode() const;
+
+  /** @param New status code to set */
+  void setStatusCode(HttpStatus);
+
+  /** @return Reason phrase of the response */
+  std::string getReasonPhrase() const;
+
+  /** @param New reason phrase to set */
+  void setReasonPhrase(const std::string &);
+
+  /** @return Headers of the response */
+  Headers &getHeaders() const;
+
+  ~Response();
+private:
+  ResponseState *state_;
+  void init(void *hdr_buf, void *hdr_loc);
+  friend class Transaction;
+  friend class utils::internal;
+};
+
+}
+
+#endif
diff --git a/lib/atscppapi/src/include/atscppapi/Stat.h b/lib/atscppapi/src/include/atscppapi/Stat.h
new file mode 100644
index 00000000..d665d1a2
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Stat.h
@@ -0,0 +1,106 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Stat.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_STAT_H_
+#define ATSCPPAPI_STAT_H_
+
+#include <atscppapi/noncopyable.h>
+#include <stdint.h>
+#include <string>
+
+namespace atscppapi {
+
+/**
+ * @brief A Stat is an atomic variable that can be used to store counters, averages, time averages, or summations.
+ *
+ * All stats are exposed through the traffic_line program included with Apache Traffic Server. Additionally,
+ * if you've enabled HttpStats all Stats you define will be displayed there. Stats can be read via
+ * traffic_line -r stat_name.
+ *
+ * Stats are very easy to use, here is a simple example of how you can create a counter and increment its
+ * value:
+ * \code
+ *  Stat stat;
+ *  stat.init("stat_name");
+    stat.inc();
+ * \endcode
+ *
+ * A full example is available in examples/stat_example/.
+ */
+class Stat : noncopyable {
+public:
+  /**
+   * The available Stat types.
+   */
+  enum SyncType {
+    SYNC_SUM = 0, /**< The stat will sum all values from a stat.inc(VAL) */
+    SYNC_COUNT, /**< The stat will count all calls to stat.inc(VAL) */
+    SYNC_AVG, /**< The stat will keep an average after call calls to stat.inc(VAL) */
+    SYNC_TIMEAVG /**< The stat will keep a time average of all calls to stat.inc(VAL) */
+  };
+
+  Stat();
+  ~Stat();
+
+  /**
+   * You must initialize your Stat with a call to this init() method.
+   *
+   * @param name The string name of the stat, this will be visbible via traffic_line -r, or through http stats.
+   * @param type The SyncType of the Stat, this decides how TrafficServer will treat your inputs. The default
+   *   value is SYNC_COUNT.
+   * @param persistent This determines if your Stats will persist, the default value is false.
+   * @return True if the stat was successfully created and false otherwise.
+   *
+   * @see SyncType
+   */
+  bool init(std::string name, Stat::SyncType type = SYNC_COUNT, bool persistent = false);
+
+  /**
+   * This method allows you to increment a stat by a certain amount.
+   * @param amount the amount to increment the stat by the default value is 1.
+   */
+  void increment(int64_t amount = 1);
+
+  /**
+   * This method allows you to decrement a stat by a certain amount.
+   * @param amount the amount to decrement the stat by the default value is 1.
+   */
+  void decrement(int64_t amount = 1);
+
+  /**
+   * This method returns the current value of the stat.
+   * @return The value of the stat.
+   */
+  int64_t get() const;
+
+  /** This method sets the value of the stat.
+   * @param value the value to set the stat to.
+   */
+  void set(int64_t value);
+private:
+  int stat_id_; /**< The internal stat ID */
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_STAT_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/Transaction.h b/lib/atscppapi/src/include/atscppapi/Transaction.h
new file mode 100644
index 00000000..1e6014f4
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Transaction.h
@@ -0,0 +1,348 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Transaction.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_TRANSACTION_H_
+#define ATSCPPAPI_TRANSACTION_H_
+
+#include <sys/socket.h>
+#include <stdint.h>
+#include <list>
+#include "atscppapi/Request.h"
+#include "atscppapi/shared_ptr.h"
+#include "atscppapi/ClientRequest.h"
+#include "atscppapi/Response.h"
+
+namespace atscppapi {
+
+// forward declarations
+class TransactionPlugin;
+struct TransactionState;
+namespace utils { class internal; }
+
+/**
+ * @brief Transactions are the object containing all the state related to a HTTP Transaction
+ *
+ * @warning Transactions should never be directly created by the user, they will always be automatically
+ * created and destroyed as they are needed. Transactions should never be saved beyond the
+ * scope of the function in which they are delivered otherwise undefined behaviour will result.
+ */
+class Transaction: noncopyable {
+public:
+  /**
+   * @brief ContextValues are a mechanism to share data between plugins using the atscppapi.
+   *
+   * Any data can be shared so long as it extends ContextValue, a simple example might
+   * be:
+   *
+   * \code
+   *     struct mydata : ContextValue {
+   *       int id_;
+   *       string foo_;
+   *       mydata(int id, string foo) : id_(id), foo_(foo) { }
+   *     }
+   *
+   *     Transaction.setContextValue("some-key", shared_ptr(new mydata(12, "hello")));
+   *
+   *     // From another plugin you'll have access to this contextual data:
+   *     shared_ptr<Transaction.getContextValue("some-key")
+   *
+   * \endcode
+   *
+   * Because getContextValue() and setContextValue()
+   * take shared pointers you dont have to worry about the cleanup as that will happen automatically so long
+   * as you dont have shared_ptrs that cannot go out of scope.
+   */
+  class ContextValue {
+  public:
+    virtual ~ContextValue() { }
+  };
+
+  ~Transaction();
+
+  /**
+   * Context Values are a way to share data between plugins, the key is always a string
+   * and the value can be a shared_ptr to any type that extends ContextValue.
+   * @param key the key to search for.
+   * @return Shared pointer that is correctly initialized if the
+   *         value existed. It should be checked with .get() != NULL before use.
+   */
+  shared_ptr<ContextValue> getContextValue(const std::string &key);
+
+  /**
+   * Context Values are a way to share data between plugins, the key is always a string
+   * and the value can be a shared_ptr to any type that extends ContextValue.
+   * @param key the key to insert.
+   * @param value a shared pointer to a class that extends ContextValue.
+   */
+  void setContextValue(const std::string &key, shared_ptr<ContextValue> value);
+
+  /**
+   * Causes the Transaction to continue on to other states in the HTTP state machine
+   * If you do not call resume() on a Transaction it will remain in that state until
+   * it's advanced out by a call to resume() or error().
+   */
+  void resume();
+
+  /**
+   * Causes the Transaction to advance to the error state in the HTTP state machine.
+   * @see error(const std::string &)
+   */
+  void error();
+
+  /**
+   * Causes the Transaction to advance to the error state in the HTTP state machine with
+   * a specific error message displayed. This is functionally equivalent to the following:
+   *
+   * \code
+   * setErrorBody(content);
+   * error();
+   * \endcode
+   *
+   * @param content the error page body.
+   */
+  void error(const std::string &content);
+
+  /**
+   * Sets the error body page but this method does not advance the state machine to the error state.
+   * To do that you must explicitally call error().
+   *
+   * @param content the error page content.
+   */
+  void setErrorBody(const std::string &content);
+
+  /**
+   * Get the clients address
+   * @return The sockaddr structure representing the client's address
+   * @see atscppapi::utils::getIpString() in atscppapi/utils.h
+   * @see atscppapi::utils::getPort() in atscppapi/utils.h
+   * @see atscppapi::utils::getIpPortString in atscppapi/utils.h
+   */
+  const sockaddr *getClientAddress() const;
+
+  /**
+   * Get the incoming address
+   * @return The sockaddr structure representing the incoming address
+   * @see atscppapi::utils::getIpString() in atscppapi/utils.h
+   * @see atscppapi::utils::getPort() in atscppapi/utils.h
+   * @see atscppapi::utils::getIpPortString in atscppapi/utils.h
+   */
+  const sockaddr *getIncomingAddress() const;
+
+  /**
+   * Get the server address
+   * @return The sockaddr structure representing the server's address
+   * @see atscppapi::utils::getIpString() in atscppapi/utils.h
+   * @see atscppapi::utils::getPort() in atscppapi/utils.h
+   * @see atscppapi::utils::getIpPortString in atscppapi/utils.h
+   */
+  const sockaddr *getServerAddress() const;
+
+  /**
+   * Get the next hop address
+   * @return The sockaddr structure representing the next hop's address
+   * @see atscppapi::utils::getIpString() in atscppapi/utils.h
+   * @see atscppapi::utils::getPort() in atscppapi/utils.h
+   * @see atscppapi::utils::getIpPortString in atscppapi/utils.h
+   */
+  const sockaddr *getNextHopAddress() const;
+
+
+  /**
+   * Set the incoming port on the Transaction
+   *
+   * @param port is the port to set as the incoming port on the transaction
+   */
+  bool setIncomingPort(uint16_t port);
+
+  /**
+   * Sets the server address on the Transaction to a populated sockaddr *
+   *
+   * @param sockaddr* the sockaddr structure populated as the server address.
+   */
+  bool setServerAddress(const sockaddr *);
+
+  /**
+   * Returns a boolean value if the request is an internal request.
+   * A request is an internal request if it originates from within traffic server.
+   * An example would be using TSFetchUrl (or the atscppapi equivalent of AsyncHttpFetch)
+   * to make another request along with the original request. The secondary request
+   * originated within traffic server and is an internal request.
+   *
+   * @return boolean value specifying if the request was an internal request.
+   */
+  bool isInternalRequest() const;
+
+  /**
+   * Returns the ClientRequest object for the incoming request from the client.
+   *
+   * @return ClientRequest object that can be used to manipulate the incoming request from the client.
+   */
+  ClientRequest &getClientRequest();
+
+  /**
+   * Returns a Request object which is the request from Traffic Server to the origin server.
+   *
+   * @return Request object that can be used to manipulate the outgoing request to the origin server.
+   */
+  Request &getServerRequest();
+
+  /**
+   * Returns a Response object which is the response coming from the origin server
+   *
+   * @return Response object that can be used to manipulate the incoming response from the origin server.
+   */
+  Response &getServerResponse();
+
+  /**
+   * Returns a Response object which is the response going to the client
+   *
+   * @return Response object that can be used to manipulate the outgoing response from the client.
+   */
+  Response &getClientResponse();
+
+  /**
+   * Returns the Effective URL for this transaction taking into account host.
+   */
+  std::string getEffectiveUrl();
+
+  /**
+   * Sets the url used by the ATS cache for a specific transaction.
+   * @param url is the url to use in the cache.
+   */
+  bool setCacheUrl(const std::string &);
+
+  /**
+   * The available types of timeouts you can set on a Transaction.
+   */
+  enum TimeoutType {
+    TIMEOUT_DNS = 0, /**< Timeout on DNS */
+    TIMEOUT_CONNECT, /**< Timeout on Connect */
+    TIMEOUT_NO_ACTIVITY, /**< Timeout on No Activity */
+    TIMEOUT_ACTIVE /**< Timeout with Activity */
+  };
+
+  /**
+   * Allows you to set various types of timeouts on a Transaction
+   *
+   * @param type The type of timeout
+   * @param time_ms The timeout time in milliseconds
+   * @see TimeoutType
+   */
+  void setTimeout(TimeoutType type, int time_ms);
+
+  /**
+   * Returns the TSHttpTxn related to the current Transaction
+   *
+   * @return a void * which can be cast back to a TSHttpTxn.
+   */
+  void *getAtsHandle() const;
+
+  /**
+   * Adds a TransactionPlugin to the current Transaction. This effectively transfers ownership and the
+   * Transaction is now responsible for cleaning it up.
+   *
+   * @param TransactionPlugin* the TransactionPlugin that will be now bound to the current Transaction.
+   */
+  void addPlugin(TransactionPlugin *);
+
+
+  /*
+   * Note: The following methods cannot be attached to a Response
+   * object because that would require the Response object to
+   * know that it's a server or client response because of the
+   * TS C api which is TSHttpTxnServerRespBodyBytesGet.
+   */
+
+  /**
+   * Get the number of bytes for the response body as returned by the server
+   *
+   * @return server response body size */
+  size_t getServerResponseBodySize();
+
+  /**
+   * Get the nubmber of bytes for the response headers as returned by the server
+   *
+   * @return server response header size */
+  size_t getServerResponseHeaderSize();
+
+  /**
+   * Get the number of bytes for the client response.
+   * This can differ from the server response size because of transformations.
+   *
+   * @return client response body size */
+  size_t getClientResponseBodySize();
+
+  /**
+   * Get the number of bytes for the response headers.
+   * This can differ from the server response because headers can be modified.
+   *
+   * @return client response header size */
+  size_t getClientResponseHeaderSize();
+
+private:
+  TransactionState *state_; //!< The internal TransactionState object tied to the current Transaction
+  friend class TransactionPlugin; //!< TransactionPlugin is a friend so it can call addPlugin()
+  friend class TransformationPlugin; //!< TransformationPlugin is a friend so it can call addPlugin()
+
+  /**
+   * @private
+   *
+   * @param raw_txn a void pointer that represents a TSHttpTxn
+   */
+  Transaction(void *);
+
+  /**
+   * Used to initialize the Request object for the Server.
+   *
+   * @private
+   */
+  void initServerRequest();
+
+  /**
+   * Used to initialize the Response object for the Server.
+   *
+   * @private
+   */
+  void initServerResponse();
+
+  /**
+   * Used to initialize the Response object for the Client.
+   *
+   * @private
+   */
+  void initClientResponse();
+
+  /**
+   * Returns a list of TransactionPlugin pointers bound to the current Transaction
+   *
+   * @private
+   *
+   * @return a std::list<TransactionPlugin *> which represents all TransactionPlugin bound to the current Transaction.
+   */
+  const std::list<TransactionPlugin *> &getPlugins() const;
+
+  friend class utils::internal;
+};
+
+} /* atscppapi */
+
+#endif /* ATSCPPAPI_TRANSACTION_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/TransactionPlugin.h b/lib/atscppapi/src/include/atscppapi/TransactionPlugin.h
new file mode 100644
index 00000000..3987927e
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/TransactionPlugin.h
@@ -0,0 +1,113 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file TransactionPlugin.h
+ * @brief Contains the interface used in creating Transaciton plugins.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_TRANSACTIONPLUGIN_H_
+#define ATSCPPAPI_TRANSACTIONPLUGIN_H_
+
+#include <atscppapi/Plugin.h>
+#include <atscppapi/Transaction.h>
+#include <atscppapi/shared_ptr.h>
+#include <atscppapi/Mutex.h>
+
+namespace atscppapi {
+
+namespace utils {
+ class internal;
+} /* utils */
+
+/**
+ * @private
+ */
+struct TransactionPluginState;
+
+/**
+ * @brief The interface used when creating a TransactionPlugin.
+ *
+ * A Transaction Plugin is a plugin that will fire only for the specific Transaction it
+ * was bound to. When you create a TransactionPlugin you call the parent constructor with
+ * the associated Transaction and it will become automatically bound. This means that your
+ * TransactionPlugin will automatically be destroyed when the Transaction dies.
+ *
+ * Implications of this are that you can easily add Transaction scoped storage by adding
+ * a member to a TransactionPlugin since the destructor will be called of your TransactionPlugin
+ * any cleanup that needs to happen can happen in your destructor as you normally would.
+ *
+ * You must always be sure to implement the appropriate callback for the type of hook you register.
+ *
+ * \code
+ * // For a more detailed example see examples/transactionhook/
+ * class TransactionHookPlugin : publicTransactionPlugin {
+ * public:
+ *   TransactionHookPlugin(Transaction &transaction) : TransactionPlugin(transaction) {
+ *     char_ptr_ = new char[100]; // Transaction scoped storage
+ *     registerHook(HOOK_SEND_RESPONSE_HEADERS);
+ *   }
+ *   virtual ~TransactionHookPlugin() {
+ *     delete[] char_ptr_; // cleanup
+ *   }
+ *   void handleSendResponseHeaders(Transaction &transaction) {
+ *     transaction.resume();
+ *   }
+ * private:
+ *   char *char_ptr_;
+ * };
+ * \endcode
+ *
+ * @see Plugin
+ * @see HookType
+ */
+class TransactionPlugin : public Plugin {
+public:
+  /**
+   * registerHook is the mechanism used to attach a transaction hook.
+   *
+   * \note Whenever you register a hook you must have the appropriate callback definied in your TransactionPlugin
+   *  see HookType and Plugin for the correspond HookTypes and callback methods. If you fail to implement the
+   *  callback, a default implmentation will be used that will only resume the Transaction.
+   *
+   * @param HookType the type of hook you wish to register
+   * @see HookType
+   * @see Plugin
+   */
+  void registerHook(Plugin::HookType hook_type);
+  virtual ~TransactionPlugin();
+protected:
+  TransactionPlugin(Transaction &transaction);
+
+  /**
+   * This method will return a shared_ptr to a Mutex that can be used for AsyncProvider and AsyncReceiver operations.
+   *
+   * If another thread wanted to stop this transaction from dispatching an event it could be passed
+   * this mutex and it would be able to lock it and prevent another thread from dispatching back into this
+   * TransactionPlugin.
+   */
+  shared_ptr<Mutex> getMutex();
+private:
+  TransactionPluginState *state_; /**< The internal state for a TransactionPlugin */
+  friend class utils::internal;
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_TRANSACTIONPLUGIN_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/TransformationPlugin.h b/lib/atscppapi/src/include/atscppapi/TransformationPlugin.h
new file mode 100644
index 00000000..4c617f73
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/TransformationPlugin.h
@@ -0,0 +1,130 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file TransformationPlugin.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_TRANSFORMATIONPLUGIN_H_
+#define ATSCPPAPI_TRANSFORMATIONPLUGIN_H_
+
+#include <string>
+#include <atscppapi/Transaction.h>
+#include <atscppapi/TransactionPlugin.h>
+
+namespace atscppapi {
+
+struct TransformationPluginState;
+
+/**
+ * @brief The interface used when you wish to transform Request or Response body content.
+ *
+ * Transformations are deceptively simple, transformations are chained so the output
+ * of one TransformationPlugin becomes the input of another TransformationPlugin. As
+ * data arrives it will fire a consume() and when all the data has been sent
+ * you will receive a handleInputComplete(). Data can be sent to the next TransformationPlugin
+ * in the chain by calling produce() and when the transformation has no data left to send
+ * it will fire a setOutputCompete().
+ *
+ * Since a TransformationPlugin is a type of TransactionPlugin you can call registerHook() and
+ * establish any hook for a Transaction also; however, remember that you must implement
+ * the appropriate callback for any hooks you register.
+ *
+ * A simple example of how to use the TransformationPlugin interface follows, this is an example
+ * of a Response transformation, the avialable options are REQUEST_TRANSFORMATION and RESPONSE_TRANSFORMATION
+ * which are defined in Type.
+ *
+ * This example is a Null Transformation, meaning it will just spit out the content it receives without
+ * actually doing any work on it.
+ *
+ * \code
+ * class NullTransformationPlugin : public TransformationPlugin {
+ * public:
+ *   NullTransformationPlugin(Transaction &transaction)
+ *     : TransformationPlugin(transaction, RESPONSE_TRANSFORMATION) {
+ *     registerHook(HOOK_SEND_RESPONSE_HEADERS);
+ *   }
+ *   void handleSendResponseHeaders(Transaction &transaction) {
+ *     transaction.getClientResponse().getHeaders().set("X-Content-Transformed", "1");
+ *     transaction.resume();
+ *   }
+ *   void consume(const string &data) {
+ *     produce(data);
+ *   }
+ *   void handleInputComplete() {
+ *     setOutputComplete();
+ *   }
+ * };
+ * \endcode
+ *
+ * @see Plugin
+ * @see TransactionPlugin
+ * @see Type
+ * @see HookType
+ */
+class TransformationPlugin : public TransactionPlugin {
+public:
+  /**
+   * The available types of Transformations.
+   */
+  enum Type {
+    REQUEST_TRANSFORMATION = 0, /**< Transform the Request body content */
+    RESPONSE_TRANSFORMATION /**< Transform the Response body content */
+  };
+
+  /**
+   * A method that you must implement when writing a TransformationPlugin, this method will be
+   * fired whenever an upstream TransformationPlugin has produced output.
+   */
+  virtual void consume(const std::string &data) = 0;
+
+  /**
+   * A method that you must implement when writing a TransformationPlugin, this method
+   * will be fired whenever the upstream TransformationPlugin has completed writing data.
+   */
+  virtual void handleInputComplete() = 0;
+
+  virtual ~TransformationPlugin(); /**< Destructor for a TransformationPlugin */
+protected:
+
+  /**
+   * This method is how a TransformationPlugin will produce output for the downstream
+   * transformation plugin, if you need to produce binary data this can still be
+   * done with strings by a call to string::assign() or by constructing a string
+   * with string::string(char *, size_t).
+   */
+  size_t produce(const std::string &);
+
+  /**
+   * This is the method that you must call when you're done producing output for
+   * the downstream TranformationPlugin.
+   */
+  size_t setOutputComplete();
+
+  /** a TransformationPlugin must implement this interface, it cannot be constructed directly */
+  TransformationPlugin(Transaction &transaction, Type type);
+private:
+  TransformationPluginState *state_; /** Internal state for a TransformationPlugin */
+  size_t doProduce(const std::string &);
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_TRANSFORMATIONPLUGIN_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/Url.h b/lib/atscppapi/src/include/atscppapi/Url.h
new file mode 100644
index 00000000..1feadf88
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/Url.h
@@ -0,0 +1,149 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file Url.h
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_URL_H_
+#define ATSCPPAPI_URL_H_
+
+#include <string>
+#include <stdint.h>
+#include <atscppapi/noncopyable.h>
+
+namespace atscppapi {
+
+struct UrlState;
+
+/**
+ * @brief This class contains all properties of a Url.
+ *
+ * You can use a Url object to get and set any property of a url.
+ *
+ * @warning Url objects should never be constructed by the user.
+ * If a user needs to create an unbound Url then they should create a Request
+ * object using Request::Request(string) which will construct a Url object for them
+ * and it can be retrieved via Request::getUrl(). A full example of this
+ * is available in examples/detachedrequest/.
+ */
+class Url: noncopyable {
+public:
+  /**
+   * @warning Url objects should never be constructed by the user.
+   * If a user needs to create an unbound Url then they should create a Request
+   * object using Request::Request(string) which will construct a Url object for them
+   * and it can be retrieved via Request::getUrl(). A full example of this
+   * is available in examples/detachedrequest/.
+   *
+   * @private
+   */
+  Url();
+
+  /**
+   * @warning Url objects should never be constructed by the user.
+   * If a user needs to create an unbound Url then they should create a Request
+   * object using Request::Request(string) which will construct a Url object for them
+   * and it can be retrieved via Request::getUrl(). A full example of this
+   * is available in examples/detachedrequest/.
+   *
+   * @private
+   */
+  Url(void *hdr_buf, void *url_loc);
+  ~Url();
+
+  /**
+   * @return The full url as a string, such a url might be http://trafficserver.apache.org/search?q=blah
+   */
+  std::string getUrlString() const;
+
+  /**
+   * @return The path only portion of the url, such as /search
+   */
+  std::string getPath() const;
+
+  /**
+   * @return The query only portion of the url, which might be q=blah
+   */
+  std::string getQuery() const;
+
+  /**
+   * @return The scheme of the url, this will be either http or https.
+   */
+  std::string getScheme() const;
+
+  /**
+   * @return The host only of the url, this might be www.google.com
+   */
+  std::string getHost() const;
+
+  /**
+   * @return The port only portion of the url, this will likely be 80 or 443.
+   */
+  uint16_t getPort() const;
+
+  /**
+   * Set the path of the url.
+   * @param path the path portion of the url to set, this might be something like /foo/bar
+   */
+  void setPath(const std::string &);
+
+  /**
+   * Set the query param of the url.
+   * @param query the query portion of the url, this might be something like foo=bar&blah=baz.
+   */
+  void setQuery(const std::string &);
+
+  /**
+   * Set the scheme of the url
+   * @param scheme this might be either http or https.
+   */
+  void setScheme(const std::string &);
+
+  /**
+   * Set the host of the url
+   * @param host this might be something such as www.linkedin.com or www.apache.org
+   */
+  void setHost(const std::string &);
+
+  /**
+   * Set the port portion of the url.
+   * @param port this is a uint16_t which represents the port (in host order, there is no need to conver to network order). You
+   * might use a value such as 80 or 8080.
+   */
+  void setPort(const uint16_t);
+
+  /**
+   * This method allows you to reset the url, this will force the Url to fully re-read all cached values.
+   * If this method is used on a Detached Requests' Url object it will completely destroy the values.
+   *
+   * \note This method should rarely be used.
+   */
+  void reset();
+private:
+  bool isInitialized() const;
+  void init(void *hdr_buf, void *url_loc);
+  UrlState *state_;
+  friend class Request;
+  friend class ClientRequest;
+  friend class RemapPlugin;
+};
+
+}
+
+#endif /* ATSCPPAPI_URL_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/noncopyable.h b/lib/atscppapi/src/include/atscppapi/noncopyable.h
new file mode 100644
index 00000000..6c1c5f48
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/noncopyable.h
@@ -0,0 +1,64 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file noncopyable.h
+ * @brief A base class used to prevent dervied classes from being copyable, this effectively
+ * eliminates the copy constructor and assignment operator.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_NONCOPYABLE_H_
+#define ATSCPPAPI_NONCOPYABLE_H_
+
+namespace atscppapi {
+
+/**
+ * @brief noncopyable is a base class that will prevent derived classes from being copied.
+ *
+ * @private Prevent Doxygen from showing this class in the inheritance diagrams.
+ *
+ * To use noncopyable you only need to inherit from this class and you're derived class
+ * will become uncopyable
+ *
+ * \code
+ * class myClass : uncopyable {
+ * public:
+ *  int test_;
+ * }
+ *
+ * // The following will fail:
+ * myClass a;
+ * myClass b(a); // fails
+ * myClass c = a; // fails
+ * \endcode
+ */
+class noncopyable
+{
+protected:
+  noncopyable() {}
+  ~noncopyable() {}
+private:
+  noncopyable(const noncopyable&);
+  const noncopyable& operator=(const noncopyable&);
+};
+
+} /* atscppapi */
+
+
+#endif /* ATSCPPAPI_NONCOPYABLE_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/shared_ptr.h b/lib/atscppapi/src/include/atscppapi/shared_ptr.h
new file mode 100644
index 00000000..6fa9571a
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/shared_ptr.h
@@ -0,0 +1,51 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+/**
+ * @file shared_ptr.h
+ *
+ * Shared pointer declaration.
+ */
+
+#pragma once
+#ifndef ASTCPPAPI_SHARED_PTR_H_
+#define ASTCPPAPI_SHARED_PTR_H_
+
+#include "ink_autoconf.h"
+
+#if HAVE_STD_SHARED_PTR
+#  include <memory>
+#else
+#  include <tr1/memory>
+#endif
+
+namespace atscppapi {
+
+/**
+ * Force the use of std::tr1::shared_ptr
+ * \todo Consider adding a simple macro to check if c++0x/11 is enabled
+ * and if so change it to std::shared_ptr and #include <memory>s
+ */
+#if HAVE_STD_SHARED_PTR
+  using std::shared_ptr;
+#else
+  using std::tr1::shared_ptr;
+#endif
+
+} /* atscppapi */
+
+#endif /* SHARED_PTR_H_ */
diff --git a/lib/atscppapi/src/include/atscppapi/utils.h b/lib/atscppapi/src/include/atscppapi/utils.h
new file mode 100644
index 00000000..8c91c1d3
--- /dev/null
+++ b/lib/atscppapi/src/include/atscppapi/utils.h
@@ -0,0 +1,72 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file utils.h
+ * @brief Contains utility functions available to users of the api.
+ *
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_UTILS_H_
+#define ATSCPPAPI_UTILS_H_
+
+#include <string>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdint.h>
+
+#ifndef ATSCPPAPI_UNUSED
+#ifdef __GNUC__
+#define ATSCPPAPI_UNUSED __attribute__ ((unused))
+#else
+#define ATSCPPAPI_UNUSED
+#endif
+#endif
+
+namespace atscppapi {
+namespace utils {
+
+/**
+ * @brief Returns a pretty printed string of a sockaddr *
+ *
+ * @param sockaddr* A pointer to a sockaddr *
+ * @return a string which is the pretty printed address
+ */
+std::string getIpString(const sockaddr *);
+
+/**
+ * @brief Returns just the port portion of the sockaddr *
+ *
+ * @param sockaddr* A pointer to a sockaddr *
+ * @return a uint16_t which is the port from the sockaddr *
+ */
+uint16_t getPort(const sockaddr *);
+
+/**
+ * @brief Returns a pretty printed string of a sockaddr * including port
+ *
+ * @param sockaddr* A pointer to a sockaddr *
+ * @return a string which is the pretty printed address including port
+ */
+std::string getIpPortString(const sockaddr *);
+
+}
+}
+
+#endif /* ATSCPPAPI_UTILS_H_ */
diff --git a/lib/atscppapi/src/include/logging_internal.h b/lib/atscppapi/src/include/logging_internal.h
new file mode 100644
index 00000000..7a6ac275
--- /dev/null
+++ b/lib/atscppapi/src/include/logging_internal.h
@@ -0,0 +1,44 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file logging_internal.h
+ *
+ *
+ * @brief logging used inside the atscppapi library.
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_LOGGING_INTERNAL_H_
+#define ATSCPPAPI_LOGGING_INTERNAL_H_
+
+#include "atscppapi/Logger.h"
+
+// Because we have the helper in Logger.h with the same name.
+#ifdef LOG_DEBUG
+#undef LOG_DEBUG
+#endif
+
+#ifdef LOG_ERROR
+#undef LOG_ERROR
+#endif
+
+#define LOG_DEBUG(fmt, ...) TS_DEBUG("atscppapi", fmt, ## __VA_ARGS__)
+#define LOG_ERROR(fmt, ...) TS_ERROR("atscppapi", fmt, ## __VA_ARGS__)
+
+#endif /* ATSCPPAPI_LOGGING_INTERNAL_H_ */
diff --git a/lib/atscppapi/src/include/utils_internal.h b/lib/atscppapi/src/include/utils_internal.h
new file mode 100644
index 00000000..7cef9562
--- /dev/null
+++ b/lib/atscppapi/src/include/utils_internal.h
@@ -0,0 +1,99 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file atsutils.h
+ *
+ *
+ * @brief internal utilities for atscppapi
+ */
+
+#pragma once
+#ifndef ATSCPPAPI_ATSUTILS_H_
+#define ATSCPPAPI_ATSUTILS_H_
+
+#include <ts/ts.h>
+#include <string>
+#include "atscppapi/GlobalPlugin.h"
+#include "atscppapi/TransactionPlugin.h"
+#include "atscppapi/TransformationPlugin.h"
+#include "atscppapi/Plugin.h"
+#include "atscppapi/HttpVersion.h"
+#include "atscppapi/utils.h"
+#include "atscppapi/AsyncHttpFetch.h"
+#include "atscppapi/Transaction.h"
+#include "atscppapi/InterceptPlugin.h"
+
+namespace atscppapi {
+
+namespace utils {
+
+/**
+ * @private
+ */
+class internal {
+public:
+  static TSHttpHookID convertInternalHookToTsHook(Plugin::HookType);
+  static TSHttpHookID convertInternalTransformationTypeToTsHook(TransformationPlugin::Type type);
+  static void invokePluginForEvent(TransactionPlugin *, TSHttpTxn, TSEvent);
+  static void invokePluginForEvent(GlobalPlugin *, TSHttpTxn, TSEvent);
+  static HttpVersion getHttpVersion(TSMBuffer hdr_buf, TSMLoc hdr_loc);
+  static void initTransactionManagement();
+  static std::string consumeFromTSIOBufferReader(TSIOBufferReader);
+  static shared_ptr<Mutex> getTransactionPluginMutex(TransactionPlugin &);
+  static Transaction &getTransaction(TSHttpTxn);
+
+  static AsyncHttpFetchState *getAsyncHttpFetchState(AsyncHttpFetch &async_http_fetch) {
+    return async_http_fetch.state_;
+  }
+
+  static void initResponse(Response &response, TSMBuffer hdr_buf, TSMLoc hdr_loc) {
+    response.init(hdr_buf, hdr_loc);
+  }
+
+  static void initTransactionServerRequest(Transaction &transaction) {
+    transaction.initServerRequest();
+  }
+
+  static void initTransactionServerResponse(Transaction &transaction) {
+    transaction.initServerResponse();
+  }
+
+  static void initTransactionClientResponse(Transaction &transaction) {
+    transaction.initClientResponse();
+  }
+
+  static const std::list<TransactionPlugin *> &getTransactionPlugins(const Transaction &transaction) {
+    return transaction.getPlugins();
+  }
+
+  static void dispatchInterceptEvent(InterceptPlugin *plugin, TSEvent event, void *edata) {
+    plugin->handleEvent(static_cast<int>(event), edata);
+  }
+
+  static void deleteAsyncHttpFetch(AsyncHttpFetch *fetch) {
+    delete fetch;
+  }
+
+}; /* internal */
+
+} /* utils */
+
+}
+
+#endif /* ATSCPPAPI_ATSUTILS_H_ */
diff --git a/lib/atscppapi/src/utils.cc b/lib/atscppapi/src/utils.cc
new file mode 100644
index 00000000..7608281f
--- /dev/null
+++ b/lib/atscppapi/src/utils.cc
@@ -0,0 +1,77 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file utils.cc
+ */
+
+#include "atscppapi/utils.h"
+#include <sstream>
+#include <arpa/inet.h>
+#include <ts/ts.h>
+#include "logging_internal.h"
+
+std::string atscppapi::utils::getIpString(const sockaddr *sockaddress) {
+  if (sockaddress == NULL) {
+    LOG_ERROR("Cannot work on NULL sockaddress");
+   return std::string();
+  }
+
+  char buf[INET6_ADDRSTRLEN];
+
+  switch (sockaddress->sa_family) {
+  case AF_INET:
+    inet_ntop(AF_INET, &(((struct sockaddr_in *) sockaddress)->sin_addr), buf, INET_ADDRSTRLEN);
+    return std::string(buf);
+  case AF_INET6:
+    inet_ntop(AF_INET6, &(((struct sockaddr_in6 *) sockaddress)->sin6_addr), buf, INET6_ADDRSTRLEN);
+    return std::string(buf);
+  default:
+    LOG_ERROR("Unknown Address Family %d", static_cast<int>(sockaddress->sa_family));
+    return std::string();
+  }
+}
+
+uint16_t atscppapi::utils::getPort(const sockaddr *sockaddress) {
+  if (sockaddress == NULL) {
+    LOG_ERROR("Cannot work on NULL sockaddress");
+    return 0;
+  }
+
+  if (sockaddress->sa_family == AF_INET) {
+    return ntohs((((struct sockaddr_in*) sockaddress)->sin_port));
+  } else if (sockaddress->sa_family == AF_INET6) {
+    return ntohs((((struct sockaddr_in6*) sockaddress)->sin6_port));
+  } else {
+    LOG_ERROR("Unknown Address Family %d", static_cast<int>(sockaddress->sa_family));
+    return 0;
+  }
+}
+
+std::string atscppapi::utils::getIpPortString(const sockaddr *sockaddress) {
+  if (sockaddress == NULL) {
+    LOG_ERROR("Cannot work on NULL sockaddress");
+    return std::string();
+  }
+
+  std::ostringstream oss;
+  oss << getIpString(sockaddress);
+  oss << ":";
+  oss << getPort(sockaddress);
+  return oss.str();
+}
diff --git a/lib/atscppapi/src/utils_internal.cc b/lib/atscppapi/src/utils_internal.cc
new file mode 100644
index 00000000..a63b59f3
--- /dev/null
+++ b/lib/atscppapi/src/utils_internal.cc
@@ -0,0 +1,237 @@
+/**
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * @file utils_internal.cc
+ */
+#include "utils_internal.h"
+#include <cassert>
+#include <ts/ts.h>
+#include <pthread.h>
+#include <cstdlib>
+#include <cassert>
+#include <cstddef>
+#include "atscppapi/Plugin.h"
+#include "atscppapi/GlobalPlugin.h"
+#include "atscppapi/Transaction.h"
+#include "atscppapi/TransactionPlugin.h"
+#include "atscppapi/TransformationPlugin.h"
+#include "atscppapi/utils.h"
+#include "logging_internal.h"
+
+using namespace atscppapi;
+
+namespace {
+
+// This is the highest txn arg that can be used, we choose this
+// value to minimize the likelihood of it causing any problems.
+const int MAX_TXN_ARG = 15;
+const int TRANSACTION_STORAGE_INDEX = MAX_TXN_ARG;
+
+int handleTransactionEvents(TSCont cont, TSEvent event, void *edata) {
+  // This function is only here to clean up Transaction objects
+  TSHttpTxn ats_txn_handle = static_cast<TSHttpTxn>(edata);
+  Transaction &transaction = utils::internal::getTransaction(ats_txn_handle);
+  LOG_DEBUG("Got event %d on continuation %p for transaction (ats pointer %p, object %p)", event, cont,
+            ats_txn_handle, &transaction);
+
+  switch (event) {
+  case TS_EVENT_HTTP_POST_REMAP:
+    transaction.getClientRequest().getUrl().reset();
+    break;
+  case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+    utils::internal::initTransactionServerRequest(transaction);
+    break;
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    utils::internal::initTransactionServerResponse(transaction);
+    break;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    utils::internal::initTransactionClientResponse(transaction);
+    break;
+  case TS_EVENT_HTTP_TXN_CLOSE:
+    { // opening scope to declare plugins variable below 
+      const std::list<TransactionPlugin *> &plugins = utils::internal::getTransactionPlugins(transaction);
+      for (std::list<TransactionPlugin *>::const_iterator iter = plugins.begin(), end = plugins.end();
+           iter != end; ++iter) {
+        shared_ptr<Mutex> trans_mutex = utils::internal::getTransactionPluginMutex(**iter);
+        LOG_DEBUG("Locking TransacitonPlugin mutex to delete transaction plugin at %p", *iter);
+        trans_mutex->lock();
+        LOG_DEBUG("Locked Mutex...Deleting transaction plugin at %p", *iter);
+        delete *iter;
+        trans_mutex->unlock();
+      }
+      delete &transaction;
+    }
+    break;
+  default:
+    assert(false); /* we should never get here */
+    break;
+  }    
+  TSHttpTxnReenable(ats_txn_handle, TS_EVENT_HTTP_CONTINUE);
+  return 0;
+}
+
+void setupTransactionManagement() {
+  // We must always have a cleanup handler available
+  TSMutex mutex = NULL;
+  TSCont cont = TSContCreate(handleTransactionEvents, mutex);
+  TSHttpHookAdd(TS_HTTP_POST_REMAP_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_SEND_REQUEST_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_SEND_RESPONSE_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_TXN_CLOSE_HOOK, cont);
+}
+
+void inline invokePluginForEvent(Plugin *plugin, TSHttpTxn ats_txn_handle, TSEvent event) {
+  Transaction &transaction = utils::internal::getTransaction(ats_txn_handle);
+  switch (event) {
+  case TS_EVENT_HTTP_PRE_REMAP:
+    plugin->handleReadRequestHeadersPreRemap(transaction);
+    break;
+  case TS_EVENT_HTTP_POST_REMAP:
+    plugin->handleReadRequestHeadersPostRemap(transaction);
+    break;
+  case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+    plugin->handleSendRequestHeaders(transaction);
+    break;
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    plugin->handleReadResponseHeaders(transaction);
+    break;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    plugin->handleSendResponseHeaders(transaction);
+    break;
+  case TS_EVENT_HTTP_OS_DNS:
+    plugin->handleOsDns(transaction);
+    break;
+  default:
+    assert(false); /* we should never get here */
+    break;
+  }
+}
+
+} /* anonymous namespace */
+
+Transaction &utils::internal::getTransaction(TSHttpTxn ats_txn_handle) {
+  Transaction *transaction = static_cast<Transaction *>(TSHttpTxnArgGet(ats_txn_handle, TRANSACTION_STORAGE_INDEX));
+  if (!transaction) {
+    transaction = new Transaction(static_cast<void *>(ats_txn_handle));
+    LOG_DEBUG("Created new transaction object at %p for ats pointer %p", transaction, ats_txn_handle);
+    TSHttpTxnArgSet(ats_txn_handle, TRANSACTION_STORAGE_INDEX, transaction);
+  }
+  return *transaction;
+}
+
+shared_ptr<Mutex> utils::internal::getTransactionPluginMutex(TransactionPlugin &transaction_plugin) {
+  return transaction_plugin.getMutex();
+}
+
+TSHttpHookID utils::internal::convertInternalHookToTsHook(Plugin::HookType hooktype) {
+  switch (hooktype) {
+  case Plugin::HOOK_READ_REQUEST_HEADERS_POST_REMAP:
+    return TS_HTTP_POST_REMAP_HOOK;
+  case Plugin::HOOK_READ_REQUEST_HEADERS_PRE_REMAP:
+    return TS_HTTP_PRE_REMAP_HOOK;
+  case Plugin::HOOK_READ_RESPONSE_HEADERS:
+    return TS_HTTP_READ_RESPONSE_HDR_HOOK;
+  case Plugin::HOOK_SEND_REQUEST_HEADERS:
+    return TS_HTTP_SEND_REQUEST_HDR_HOOK;
+  case Plugin::HOOK_SEND_RESPONSE_HEADERS:
+    return TS_HTTP_SEND_RESPONSE_HDR_HOOK;
+  case Plugin::HOOK_OS_DNS:
+    return TS_HTTP_OS_DNS_HOOK;
+  default:
+    assert(false); // shouldn't happen, let's catch it early
+    break;
+  }
+  return static_cast<TSHttpHookID>(-1);
+}
+
+TSHttpHookID utils::internal::convertInternalTransformationTypeToTsHook(TransformationPlugin::Type type) {
+  switch (type) {
+    case TransformationPlugin::RESPONSE_TRANSFORMATION:
+      return TS_HTTP_RESPONSE_TRANSFORM_HOOK;
+    case TransformationPlugin::REQUEST_TRANSFORMATION:
+      return TS_HTTP_REQUEST_TRANSFORM_HOOK;
+    default:
+      assert(false); // shouldn't happen, let's catch it early
+      break;
+  }
+  return static_cast<TSHttpHookID>(-1);
+}
+
+void utils::internal::invokePluginForEvent(TransactionPlugin *plugin, TSHttpTxn ats_txn_handle, TSEvent event) {
+  ScopedSharedMutexLock scopedLock(plugin->getMutex());
+  ::invokePluginForEvent(static_cast<Plugin *>(plugin), ats_txn_handle, event);
+}
+
+void utils::internal::invokePluginForEvent(GlobalPlugin *plugin, TSHttpTxn ats_txn_handle, TSEvent event) {
+  ::invokePluginForEvent(static_cast<Plugin *>(plugin), ats_txn_handle, event);
+}
+
+std::string utils::internal::consumeFromTSIOBufferReader(TSIOBufferReader reader) {
+  std::string str;
+  int avail = TSIOBufferReaderAvail(reader);
+
+  if (avail != TS_ERROR) {
+    int consumed = 0;
+    if (avail > 0) {
+      str.reserve(avail + 1);
+
+      int64_t data_len;
+      const char *char_data;
+      TSIOBufferBlock block = TSIOBufferReaderStart(reader);
+      while (block != NULL) {
+        char_data = TSIOBufferBlockReadStart(block, reader, &data_len);
+        str.append(char_data, data_len);
+        consumed += data_len;
+        block = TSIOBufferBlockNext(block);
+      }
+    }
+    TSIOBufferReaderConsume(reader, consumed);
+  } else {
+    LOG_ERROR("TSIOBufferReaderAvail returned error code %d for reader %p", avail, reader);
+  }
+
+  return str;
+}
+
+
+HttpVersion utils::internal::getHttpVersion(TSMBuffer hdr_buf, TSMLoc hdr_loc) {
+  int version = TSHttpHdrVersionGet(hdr_buf, hdr_loc);
+  if (version != TS_ERROR) {
+    if ((TS_HTTP_MAJOR(version) == 0) && (TS_HTTP_MINOR(version) == 0)) {
+      return HTTP_VERSION_0_9;
+    }
+    if ((TS_HTTP_MAJOR(version) == 1) && (TS_HTTP_MINOR(version) == 0)) {
+      return HTTP_VERSION_1_0;
+    }
+    if ((TS_HTTP_MAJOR(version) == 1) && (TS_HTTP_MINOR(version) == 1)) {
+      return HTTP_VERSION_1_1;
+    } else {
+      LOG_ERROR("Unrecognized version %d", version);
+    }
+  } else {
+    LOG_ERROR("Could not get version; hdr_buf %p, hdr_loc %p", hdr_buf, hdr_loc);
+  }
+  return HTTP_VERSION_UNKNOWN;
+}
+
+void utils::internal::initTransactionManagement() {
+  static pthread_once_t setup_pthread_once_control = PTHREAD_ONCE_INIT;
+  pthread_once(&setup_pthread_once_control, setupTransactionManagement);
+}
diff --git a/lib/luajit/.gitignore b/lib/luajit/.gitignore
new file mode 100644
index 00000000..1a07bf75
--- /dev/null
+++ b/lib/luajit/.gitignore
@@ -0,0 +1,11 @@
+*.[oa]
+*.so
+*.obj
+*.lib
+*.exp
+*.dll
+*.exe
+*.manifest
+*.dmp
+*.swp
+.tags
diff --git a/lib/luajit/COPYRIGHT b/lib/luajit/COPYRIGHT
new file mode 100644
index 00000000..08936dfb
--- /dev/null
+++ b/lib/luajit/COPYRIGHT
@@ -0,0 +1,56 @@
+===============================================================================
+LuaJIT -- a Just-In-Time Compiler for Lua. http://luajit.org/
+
+Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+[ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+
+===============================================================================
+[ LuaJIT includes code from Lua 5.1/5.2, which has this license statement: ]
+
+Copyright (C) 1994-2012 Lua.org, PUC-Rio.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+===============================================================================
+[ LuaJIT includes code from dlmalloc, which has this license statement: ]
+
+This is a version (aka dlmalloc) of malloc/free/realloc written by
+Doug Lea and released to the public domain, as explained at
+http://creativecommons.org/licenses/publicdomain
+
+===============================================================================
diff --git a/lib/luajit/Makefile b/lib/luajit/Makefile
new file mode 100644
index 00000000..b23b6481
--- /dev/null
+++ b/lib/luajit/Makefile
@@ -0,0 +1,151 @@
+##############################################################################
+# LuaJIT top level Makefile for installation. Requires GNU Make.
+#
+# Please read doc/install.html before changing any variables!
+#
+# Suitable for POSIX platforms (Linux, *BSD, OSX etc.).
+# Note: src/Makefile has many more configurable options.
+#
+# ##### This Makefile is NOT useful for Windows! #####
+# For MSVC, please follow the instructions given in src/msvcbuild.bat.
+# For MinGW and Cygwin, cd to src and run make with the Makefile there.
+#
+# Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+##############################################################################
+
+MAJVER=  2
+MINVER=  0
+RELVER=  3
+VERSION= $(MAJVER).$(MINVER).$(RELVER)
+ABIVER=  5.1
+
+##############################################################################
+#
+# Change the installation path as needed. This automatically adjusts
+# the paths in src/luaconf.h, too. Note: PREFIX must be an absolute path!
+#
+export PREFIX= /usr/local
+export MULTILIB= lib
+##############################################################################
+
+DPREFIX= $(DESTDIR)$(PREFIX)
+INSTALL_BIN=   $(DPREFIX)/bin
+INSTALL_LIB=   $(DPREFIX)/$(MULTILIB)
+INSTALL_SHARE= $(DPREFIX)/share
+INSTALL_INC=   $(DPREFIX)/include/luajit-$(MAJVER).$(MINVER)
+
+INSTALL_LJLIBD= $(INSTALL_SHARE)/luajit-$(VERSION)
+INSTALL_JITLIB= $(INSTALL_LJLIBD)/jit
+INSTALL_LMODD= $(INSTALL_SHARE)/lua
+INSTALL_LMOD= $(INSTALL_LMODD)/$(ABIVER)
+INSTALL_CMODD= $(INSTALL_LIB)/lua
+INSTALL_CMOD= $(INSTALL_CMODD)/$(ABIVER)
+INSTALL_MAN= $(INSTALL_SHARE)/man/man1
+INSTALL_PKGCONFIG= $(INSTALL_LIB)/pkgconfig
+
+INSTALL_TNAME= luajit-$(VERSION)
+INSTALL_TSYMNAME= luajit
+INSTALL_ANAME= libluajit-$(ABIVER).a
+INSTALL_SONAME= libluajit-$(ABIVER).so.$(MAJVER).$(MINVER).$(RELVER)
+INSTALL_SOSHORT= libluajit-$(ABIVER).so
+INSTALL_DYLIBNAME= libluajit-$(ABIVER).$(MAJVER).$(MINVER).$(RELVER).dylib
+INSTALL_DYLIBSHORT1= libluajit-$(ABIVER).dylib
+INSTALL_DYLIBSHORT2= libluajit-$(ABIVER).$(MAJVER).dylib
+INSTALL_PCNAME= luajit.pc
+
+INSTALL_STATIC= $(INSTALL_LIB)/$(INSTALL_ANAME)
+INSTALL_DYN= $(INSTALL_LIB)/$(INSTALL_SONAME)
+INSTALL_SHORT1= $(INSTALL_LIB)/$(INSTALL_SOSHORT)
+INSTALL_SHORT2= $(INSTALL_LIB)/$(INSTALL_SOSHORT)
+INSTALL_T= $(INSTALL_BIN)/$(INSTALL_TNAME)
+INSTALL_TSYM= $(INSTALL_BIN)/$(INSTALL_TSYMNAME)
+INSTALL_PC= $(INSTALL_PKGCONFIG)/$(INSTALL_PCNAME)
+
+INSTALL_DIRS= $(INSTALL_BIN) $(INSTALL_LIB) $(INSTALL_INC) $(INSTALL_MAN) \
+  $(INSTALL_PKGCONFIG) $(INSTALL_JITLIB) $(INSTALL_LMOD) $(INSTALL_CMOD)
+UNINSTALL_DIRS= $(INSTALL_JITLIB) $(INSTALL_LJLIBD) $(INSTALL_INC) \
+  $(INSTALL_LMOD) $(INSTALL_LMODD) $(INSTALL_CMOD) $(INSTALL_CMODD)
+
+RM= rm -f
+MKDIR= mkdir -p
+RMDIR= rmdir 2>/dev/null
+SYMLINK= ln -sf
+INSTALL_X= install -m 0755
+INSTALL_F= install -m 0644
+UNINSTALL= $(RM)
+LDCONFIG= ldconfig -n
+SED_PC= sed -e "s|^prefix=.*|prefix=$(PREFIX)|" \
+            -e "s|^multilib=.*|multilib=$(MULTILIB)|"
+
+FILE_T= luajit
+FILE_A= libluajit.a
+FILE_SO= libluajit.so
+FILE_MAN= luajit.1
+FILE_PC= luajit.pc
+FILES_INC= lua.h lualib.h lauxlib.h luaconf.h lua.hpp luajit.h
+FILES_JITLIB= bc.lua v.lua dump.lua dis_x86.lua dis_x64.lua dis_arm.lua \
+	      dis_ppc.lua dis_mips.lua dis_mipsel.lua bcsave.lua vmdef.lua
+
+ifeq (,$(findstring Windows,$(OS)))
+  ifeq (Darwin,$(shell uname -s))
+    INSTALL_SONAME= $(INSTALL_DYLIBNAME)
+    INSTALL_SHORT1= $(INSTALL_LIB)/$(INSTALL_DYLIBSHORT1)
+    INSTALL_SHORT2= $(INSTALL_LIB)/$(INSTALL_DYLIBSHORT2)
+    LDCONFIG= :
+  endif
+endif
+
+##############################################################################
+
+INSTALL_DEP= src/luajit
+
+default all $(INSTALL_DEP):
+	@echo "==== Building LuaJIT $(VERSION) ===="
+	$(MAKE) -C src
+	@echo "==== Successfully built LuaJIT $(VERSION) ===="
+
+install: $(INSTALL_DEP)
+	@echo "==== Installing LuaJIT $(VERSION) to $(PREFIX) ===="
+	$(MKDIR) $(INSTALL_DIRS)
+	cd src && $(INSTALL_X) $(FILE_T) $(INSTALL_T)
+	cd src && test -f $(FILE_A) && $(INSTALL_F) $(FILE_A) $(INSTALL_STATIC) || :
+	$(RM) $(INSTALL_TSYM) $(INSTALL_DYN) $(INSTALL_SHORT1) $(INSTALL_SHORT2)
+	cd src && test -f $(FILE_SO) && \
+	  $(INSTALL_X) $(FILE_SO) $(INSTALL_DYN) && \
+	  $(LDCONFIG) $(INSTALL_LIB) && \
+	  $(SYMLINK) $(INSTALL_SONAME) $(INSTALL_SHORT1) && \
+	  $(SYMLINK) $(INSTALL_SONAME) $(INSTALL_SHORT2) || :
+	cd etc && $(INSTALL_F) $(FILE_MAN) $(INSTALL_MAN)
+	cd etc && $(SED_PC) $(FILE_PC) > $(FILE_PC).tmp && \
+	  $(INSTALL_F) $(FILE_PC).tmp $(INSTALL_PC) && \
+	  $(RM) $(FILE_PC).tmp
+	cd src && $(INSTALL_F) $(FILES_INC) $(INSTALL_INC)
+	cd src/jit && $(INSTALL_F) $(FILES_JITLIB) $(INSTALL_JITLIB)
+	$(SYMLINK) $(INSTALL_TNAME) $(INSTALL_TSYM)
+	@echo "==== Successfully installed LuaJIT $(VERSION) to $(PREFIX) ===="
+
+uninstall:
+	@echo "==== Uninstalling LuaJIT $(VERSION) from $(PREFIX) ===="
+	$(UNINSTALL) $(INSTALL_TSYM) $(INSTALL_T) $(INSTALL_STATIC) $(INSTALL_DYN) $(INSTALL_SHORT1) $(INSTALL_SHORT2) $(INSTALL_MAN)/$(FILE_MAN) $(INSTALL_PC)
+	for file in $(FILES_JITLIB); do \
+	  $(UNINSTALL) $(INSTALL_JITLIB)/$$file; \
+	  done
+	for file in $(FILES_INC); do \
+	  $(UNINSTALL) $(INSTALL_INC)/$$file; \
+	  done
+	$(LDCONFIG) $(INSTALL_LIB)
+	$(RMDIR) $(UNINSTALL_DIRS) || :
+	@echo "==== Successfully uninstalled LuaJIT $(VERSION) from $(PREFIX) ===="
+
+##############################################################################
+
+amalg:
+	@echo "Building LuaJIT $(VERSION)"
+	$(MAKE) -C src amalg
+
+clean:
+	$(MAKE) -C src clean
+
+.PHONY: all install amalg clean
+
+##############################################################################
diff --git a/lib/luajit/README b/lib/luajit/README
new file mode 100644
index 00000000..902a6d2e
--- /dev/null
+++ b/lib/luajit/README
@@ -0,0 +1,16 @@
+README for LuaJIT 2.0.3
+-----------------------
+
+LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.
+
+Project Homepage: http://luajit.org/
+
+LuaJIT is Copyright (C) 2005-2014 Mike Pall.
+LuaJIT is free software, released under the MIT license.
+See full Copyright Notice in the COPYRIGHT file or in luajit.h.
+
+Documentation for LuaJIT is available in HTML format.
+Please point your favorite browser to:
+
+ doc/luajit.html
+
diff --git a/lib/luajit/doc/bluequad-print.css b/lib/luajit/doc/bluequad-print.css
new file mode 100644
index 00000000..21da8688
--- /dev/null
+++ b/lib/luajit/doc/bluequad-print.css
@@ -0,0 +1,166 @@
+/* Copyright (C) 2004-2014 Mike Pall.
+ *
+ * You are welcome to use the general ideas of this design for your own sites.
+ * But please do not steal the stylesheet, the layout or the color scheme.
+ */
+body {
+  font-family: serif;
+  font-size: 11pt;
+  margin: 0 3em;
+  padding: 0;
+  border: none;
+}
+a:link, a:visited, a:hover, a:active {
+  text-decoration: none;
+  background: transparent;
+  color: #0000ff;
+}
+h1, h2, h3 {
+  font-family: sans-serif;
+  font-weight: bold;
+  text-align: left;
+  margin: 0.5em 0;
+  padding: 0;
+}
+h1 {
+  font-size: 200%;
+}
+h2 {
+  font-size: 150%;
+}
+h3 {
+  font-size: 125%;
+}
+p {
+  margin: 0 0 0.5em 0;
+  padding: 0;
+}
+ul, ol {
+  margin: 0.5em 0;
+  padding: 0 0 0 2em;
+}
+ul {
+  list-style: outside square;
+}
+ol {
+  list-style: outside decimal;
+}
+li {
+  margin: 0;
+  padding: 0;
+}
+dl {
+  margin: 1em 0;
+  padding: 1em;
+  border: 1px solid black;
+}
+dt {
+  font-weight: bold;
+  margin: 0;
+  padding: 0;
+}
+dt sup {
+  float: right;
+  margin-left: 1em;
+}
+dd {
+  margin: 0.5em 0 0 2em;
+  padding: 0;
+}
+table {
+  table-layout: fixed;
+  width: 100%;
+  margin: 1em 0;
+  padding: 0;
+  border: 1px solid black;
+  border-spacing: 0;
+  border-collapse: collapse;
+}
+tr {
+  margin: 0;
+  padding: 0;
+  border: none;
+}
+td {
+  text-align: left;
+  margin: 0;
+  padding: 0.2em 0.5em;
+  border-top: 1px solid black;
+  border-bottom: 1px solid black;
+}
+tr.separate td {
+  border-top: double;
+}
+tt, pre, code, kbd, samp {
+  font-family: monospace;
+  font-size: 75%;
+}
+kbd {
+  font-weight: bolder;
+}
+blockquote, pre {
+  margin: 1em 2em;
+  padding: 0;
+}
+img {
+  border: none;
+  vertical-align: baseline;
+  margin: 0;
+  padding: 0;
+}
+img.left {
+  float: left;
+  margin: 0.5em 1em 0.5em 0;
+}
+img.right {
+  float: right;
+  margin: 0.5em 0 0.5em 1em;
+}
+.flush {
+  clear: both;
+  visibility: hidden;
+}
+.hide, .noprint, #nav {
+  display: none !important;
+}
+.pagebreak {
+  page-break-before: always;
+}
+#site {
+  text-align: right;
+  font-family: sans-serif;
+  font-weight: bold;
+  margin: 0 1em;
+  border-bottom: 1pt solid black;
+}
+#site a {
+  font-size: 1.2em;
+}
+#site a:link, #site a:visited {
+  text-decoration: none;
+  font-weight: bold;
+  background: transparent;
+  color: #ffffff;
+}
+#logo {
+  color: #ff8000;
+}
+#head {
+  clear: both;
+  margin: 0 1em;
+}
+#main {
+  line-height: 1.3;
+  text-align: justify;
+  margin: 1em;
+}
+#foot {
+  clear: both;
+  font-size: 80%;
+  text-align: center;
+  margin: 0 1.25em;
+  padding: 0.5em 0 0 0;
+  border-top: 1pt solid black;
+  page-break-before: avoid;
+  page-break-after: avoid;
+}
diff --git a/lib/luajit/doc/bluequad.css b/lib/luajit/doc/bluequad.css
new file mode 100644
index 00000000..05b092e4
--- /dev/null
+++ b/lib/luajit/doc/bluequad.css
@@ -0,0 +1,325 @@
+/* Copyright (C) 2004-2014 Mike Pall.
+ *
+ * You are welcome to use the general ideas of this design for your own sites.
+ * But please do not steal the stylesheet, the layout or the color scheme.
+ */
+/* colorscheme:
+ *
+ * site  |  head   #4162bf/white   | #6078bf/#e6ecff
+ * ------+------   ----------------+-------------------
+ * nav   |  main   #bfcfff         | #e6ecff/black
+ *
+ * nav:  hiback   loback     #c5d5ff #b9c9f9
+ *       hiborder loborder   #e6ecff #97a7d7
+ *       link     hover      #2142bf #ff0000
+ *
+ * link: link visited hover  #2142bf #8122bf #ff0000
+ *
+ * main: boxback  boxborder  #f0f4ff #bfcfff
+ */
+body {
+  font-family: Verdana, Arial, Helvetica, sans-serif;
+  font-size: 10pt;
+  margin: 0;
+  padding: 0;
+  border: none;
+  background: #e0e0e0;
+  color: #000000;
+}
+a:link {
+  text-decoration: none;
+  background: transparent;
+  color: #2142bf;
+}
+a:visited {
+  text-decoration: none;
+  background: transparent;
+  color: #8122bf;
+}
+a:hover, a:active {
+  text-decoration: underline;
+  background: transparent;
+  color: #ff0000;
+}
+h1, h2, h3 {
+  font-weight: bold;
+  text-align: left;
+  margin: 0.5em 0;
+  padding: 0;
+  background: transparent;
+}
+h1 {
+  font-size: 200%;
+  line-height: 3em; /* really 6em relative to body, match #site span */
+  margin: 0;
+}
+h2 {
+  font-size: 150%;
+  color: #606060;
+}
+h3 {
+  font-size: 125%;
+  color: #404040;
+}
+p {
+  max-width: 600px;
+  margin: 0 0 0.5em 0;
+  padding: 0;
+}
+b {
+  color: #404040;
+}
+ul, ol {
+  max-width: 600px;
+  margin: 0.5em 0;
+  padding: 0 0 0 2em;
+}
+ul {
+  list-style: outside square;
+}
+ol {
+  list-style: outside decimal;
+}
+li {
+  margin: 0;
+  padding: 0;
+}
+dl {
+  max-width: 600px;
+  margin: 1em 0;
+  padding: 1em;
+  border: 1px solid #bfcfff;
+  background: #f0f4ff;
+}
+dt {
+  font-weight: bold;
+  margin: 0;
+  padding: 0;
+}
+dt sup {
+  float: right;
+  margin-left: 1em;
+  color: #808080;
+}
+dt a:visited {
+  text-decoration: none;
+  color: #2142bf;
+}
+dt a:hover, dt a:active {
+  text-decoration: none;
+  color: #ff0000;
+}
+dd {
+  margin: 0.5em 0 0 2em;
+  padding: 0;
+}
+div.tablewrap { /* for IE *sigh* */
+  max-width: 600px;
+}
+table {
+  table-layout: fixed;
+  border-spacing: 0;
+  border-collapse: collapse;
+  max-width: 600px;
+  width: 100%;
+  margin: 1em 0;
+  padding: 0;
+  border: 1px solid #bfcfff;
+}
+tr {
+  margin: 0;
+  padding: 0;
+  border: none;
+}
+tr.odd {
+  background: #f0f4ff;
+}
+tr.separate td {
+  border-top: 1px solid #bfcfff;
+}
+td {
+  text-align: left;
+  margin: 0;
+  padding: 0.2em 0.5em;
+  border: none;
+}
+tt, code, kbd, samp {
+  font-family: Courier New, Courier, monospace;
+  line-height: 1.2;
+  font-size: 110%;
+}
+kbd {
+  font-weight: bolder;
+}
+blockquote, pre {
+  max-width: 600px;
+  margin: 1em 2em;
+  padding: 0;
+}
+pre {
+  line-height: 1.1;
+}
+pre.code {
+  line-height: 1.4;
+  margin: 0.5em 0 1em 0.5em;
+  padding: 0.5em 1em;
+  border: 1px solid #bfcfff;
+  background: #f0f4ff;
+}
+pre.mark {
+  padding-left: 2em;
+}
+span.codemark {
+  position:absolute;
+  left: 16em;
+  color: #4040c0;
+}
+span.mark {
+  color: #4040c0;
+  font-family: Courier New, Courier, monospace;
+  line-height: 1.1;
+}
+img {
+  border: none;
+  vertical-align: baseline;
+  margin: 0;
+  padding: 0;
+}
+img.left {
+  float: left;
+  margin: 0.5em 1em 0.5em 0;
+}
+img.right {
+  float: right;
+  margin: 0.5em 0 0.5em 1em;
+}
+.indent {
+  padding-left: 1em;
+}
+.flush {
+  clear: both;
+  visibility: hidden;
+}
+.hide, .noscreen {
+  display: none !important;
+}
+.ext {
+  color: #ff8000;
+}
+.new {
+  font-size: 6pt;
+  vertical-align: middle;
+  background: #ff8000;
+  color: #ffffff;
+}
+#site {
+  clear: both;
+  float: left;
+  width: 13em;
+  text-align: center;
+  font-weight: bold;
+  margin: 0;
+  padding: 0;
+  background: transparent;
+  color: #ffffff;
+}
+#site a {
+  font-size: 200%;
+}
+#site a:link, #site a:visited {
+  text-decoration: none;
+  font-weight: bold;
+  background: transparent;
+  color: #ffffff;
+}
+#site span {
+  line-height: 3em; /* really 6em relative to body, match h1 */
+}
+#logo {
+  color: #ffb380;
+}
+#head {
+  margin: 0;
+  padding: 0 0 0 2em;
+  border-left: solid 13em #4162bf;
+  border-right: solid 3em #6078bf;
+  background: #6078bf;
+  color: #e6ecff;
+}
+#nav {
+  clear: both;
+  float: left;
+  overflow: hidden;
+  text-align: left;
+  line-height: 1.5;
+  width: 13em;
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+}
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+  list-style: none outside;
+  margin: 0;
+  padding: 0;
+}
+#nav li {
+  margin: 0;
+  padding: 0;
+}
+#nav a {
+  display: block;
+  text-decoration: none;
+  font-weight: bold;
+  margin: 0;
+  padding: 2px 1em;
+  border-top: 1px solid transparent;
+  border-bottom: 1px solid transparent;
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+  border-top: 1px solid #e6ecff;
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+}
+#nav ul ul a {
+  padding: 0 1em 0 1.7em;
+}
+#nav ul ul ul a {
+  padding: 0 0.5em 0 2.4em;
+}
+#main {
+  line-height: 1.5;
+  text-align: left;
+  margin: 0;
+  padding: 1em 2em;
+  border-left: solid 13em #bfcfff;
+  border-right: solid 3em #e6ecff;
+  background: #e6ecff;
+}
+#foot {
+  clear: both;
+  font-size: 80%;
+  text-align: center;
+  margin: 0;
+  padding: 0.5em;
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+}
diff --git a/lib/luajit/doc/changes.html b/lib/luajit/doc/changes.html
new file mode 100644
index 00000000..98412293
--- /dev/null
+++ b/lib/luajit/doc/changes.html
@@ -0,0 +1,928 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>LuaJIT Change History</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+div.major { max-width: 600px; padding: 1em; margin: 1em 0 1em 0; }
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>LuaJIT Change History</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a class="current" href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+This is a list of changes between the released versions of LuaJIT.<br>
+The current <span style="color: #0000c0;">stable version</span> is <strong>LuaJIT&nbsp;2.0.3</strong>.<br>
+</p>
+<p>
+Please check the
+<a href="http://luajit.org/changes.html"><span class="ext">&raquo;</span>&nbsp;Online Change History</a>
+to see whether newer versions are available.
+</p>
+
+<div class="major" style="background: #d0d0ff;">
+<h2 id="LuaJIT-2.0.3">LuaJIT 2.0.3 &mdash; 2014-03-12</h2>
+<ul>
+<li>Add PS4 port.</li>
+<li>Add support for multilib distro builds.</li>
+<li>Fix OSX build.</li>
+<li>Fix MinGW build.</li>
+<li>Fix Xbox 360 build.</li>
+<li>Improve ULOAD forwarding for open upvalues.</li>
+<li>Fix GC steps threshold handling when called by JIT-compiled code.</li>
+<li>Fix argument checks for <tt>math.deg()</tt> and <tt>math.rad()</tt>.</li>
+<li>Fix <tt>jit.flush(func|true)</tt>.</li>
+<li>Respect <tt>jit.off(func)</tt> when returning to a function, too.</li>
+<li>Fix compilation of <tt>string.byte(s, nil, n)</tt>.</li>
+<li>Fix line number for relocated bytecode after closure fixup</li>
+<li>Fix frame traversal for backtraces.</li>
+<li>Fix ABC elimination.</li>
+<li>Fix handling of redundant PHIs.</li>
+<li>Fix snapshot restore for exit to function header.</li>
+<li>Fix type punning alias analysis for constified pointers</li>
+<li>Fix call unroll checks in the presence of metamethod frames.</li>
+<li>Fix initial maxslot for down-recursive traces.</li>
+<li>Prevent BASE register coalescing if parent uses <tt>IR_RETF</tt>.</li>
+<li>Don't purge modified function from stack slots in <tt>BC_RET</tt>.</li>
+<li>Fix recording of <tt>BC_VARG</tt>.</li>
+<li>Don't access dangling reference to reallocated IR.</li>
+<li>Fix frame depth display for bytecode dump in <tt>-jdump</tt>.</li>
+<li>ARM: Fix register allocation when rematerializing FPRs.</li>
+<li>x64: Fix store to upvalue for lightuserdata values.</li>
+<li>FFI: Add missing GC steps for callback argument conversions.</li>
+<li>FFI: Properly unload loaded DLLs.</li>
+<li>FFI: Fix argument checks for <tt>ffi.string()</tt>.</li>
+<li>FFI/x64: Fix passing of vector arguments to calls.</li>
+<li>FFI: Rehash finalizer table after GC cycle, if needed.</li>
+<li>FFI: Fix <tt>cts-&gt;L</tt> for cdata unsinking in snapshot restore.</li>
+</ul>
+
+<h2 id="LuaJIT-2.0.2">LuaJIT 2.0.2 &mdash; 2013-06-03</h2>
+<ul>
+<li>Fix memory access check for fast string interning.</li>
+<li>Fix MSVC intrinsics for older versions.</li>
+<li>Add missing GC steps for <tt>io.*</tt> functions.</li>
+<li>Fix spurious red zone overflows in machine code generation.</li>
+<li>Fix jump-range constrained mcode allocation.</li>
+<li>Inhibit DSE for implicit loads via calls.</li>
+<li>Fix builtin string to number conversion for overflow digits.</li>
+<li>Fix optional argument handling while recording builtins.</li>
+<li>Fix optional argument handling in <tt>table.concat()</tt>.</li>
+<li>Add partial support for building with MingW64 GCC 4.8-SEH.</li>
+<li>Add missing PHI barrier to <tt>string.sub(str, a, b) == kstr</tt> FOLD rule.</li>
+<li>Fix compatibility issues with Illumos.</li>
+<li>ARM: Fix cache flush/sync for exit stubs of JIT-compiled code.</li>
+<li>MIPS: Fix cache flush/sync for JIT-compiled code jump area.</li>
+<li>PPC: Add <tt>plt</tt> suffix for external calls from assembler code.</li>
+<li>FFI: Fix snapshot substitution in SPLIT pass.</li>
+<li>FFI/x86: Fix register allocation for 64 bit comparisons.</li>
+<li>FFI: Fix tailcall in lowest frame to C&nbsp;function with bool result.</li>
+<li>FFI: Ignore <tt>long</tt> type specifier in <tt>ffi.istype()</tt>.</li>
+<li>FFI: Fix calling conventions for 32 bit OSX and iOS simulator (struct returns).</li>
+<li>FFI: Fix calling conventions for ARM hard-float EABI (nested structs).</li>
+<li>FFI: Improve error messages for arithmetic and comparison operators.</li>
+<li>FFI: Insert no-op type conversion for pointer to integer cast.</li>
+<li>FFI: Fix unroll limit for <tt>ffi.fill()</tt>.</li>
+<li>FFI: Must sink <tt>XBAR</tt> together with <tt>XSTORE</tt>s.</li>
+<li>FFI: Preserve intermediate string for <tt>const&nbsp;char&nbsp;*</tt> conversion.</li>
+</ul>
+
+<h2 id="LuaJIT-2.0.1">LuaJIT 2.0.1 &mdash; 2013-02-19</h2>
+<ul>
+<li>Don't clear frame for out-of-memory error.</li>
+<li>Leave hook when resume catches error thrown from hook.</li>
+<li>Add missing GC steps for template table creation.</li>
+<li>Fix discharge order of comparisons in Lua parser.</li>
+<li>Improve buffer handling for <tt>io.read()</tt>.</li>
+<li>OSX: Add support for Mach-O object files to <tt>-b</tt> option.</li>
+<li>Fix PS3 port.</li>
+<li>Fix/enable Xbox 360 port.</li>
+<li>x86/x64: Always mark ref for shift count as non-weak.</li>
+<li>x64: Don't fuse implicitly 32-to-64 extended operands.</li>
+<li>ARM: Fix armhf call argument handling.</li>
+<li>ARM: Fix code generation for integer math.min/math.max.</li>
+<li>PPC/e500: Fix <tt>lj_vm_floor()</tt> for Inf/NaN.</li>
+<li>FFI: Change priority of table initializer variants for structs.</li>
+<li>FFI: Fix code generation for bool call result check on x86/x64.</li>
+<li>FFI: Load FFI library on-demand for bytecode with cdata literals.</li>
+<li>FFI: Fix handling of qualified transparent structs/unions.</li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0">LuaJIT 2.0.0 &mdash; 2012-11-08</h2>
+<ul>
+<li>Correctness and completeness:
+<ul>
+  <li>Fix Android/x86 build.</li>
+  <li>Fix recording of equality comparisons with <tt>__eq</tt> metamethods.</li>
+  <li>Fix detection of immutable upvalues.</li>
+  <li>Replace error with PANIC for callbacks from JIT-compiled code.</li>
+  <li>Fix builtin string to number conversion for <tt>INT_MIN</tt>.</li>
+  <li>Don't create unneeded array part for template tables.</li>
+  <li>Fix <tt>CONV.num.int</tt> sinking.</li>
+  <li>Don't propagate implicitly widened number to index metamethods.</li>
+  <li>ARM: Fix ordered comparisons of number vs. non-number.</li>
+  <li>FFI: Fix code generation for replay of sunk float fields.</li>
+  <li>FFI: Fix signedness of bool.</li>
+  <li>FFI: Fix recording of bool call result check on x86/x64.</li>
+  <li>FFI: Fix stack-adjustment for <tt>__thiscall</tt> callbacks.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta11">LuaJIT 2.0.0-beta11 &mdash; 2012-10-16</h2>
+<ul>
+<li>New features:
+<ul>
+  <li>Use ARM VFP instructions, if available (build-time detection).</li>
+  <li>Add support for ARM hard-float EABI (<tt>armhf</tt>).</li>
+  <li>Add PS3 port.</li>
+  <li>Add many features from Lua&nbsp;5.2, e.g. <tt>goto</tt>/labels.
+  Refer to <a href="extensions.html#lua52">this list</a>.</li>
+  <li>FFI: Add parameterized C types.</li>
+  <li>FFI: Add support for copy constructors.</li>
+  <li>FFI: Equality comparisons never raise an error (treat as unequal instead).</li>
+  <li>FFI: Box all accessed or returned enums.</li>
+  <li>FFI: Check for <tt>__new</tt> metamethod when calling a constructor.</li>
+  <li>FFI: Handle <tt>__pairs</tt>/<tt>__ipairs</tt> metamethods for cdata objects.</li>
+  <li>FFI: Convert <tt>io.*</tt> file handle to <tt>FILE *</tt> pointer (but as a <tt>void *</tt>).</li>
+  <li>FFI: Detect and support type punning through unions.</li>
+  <li>FFI: Improve various error messages.</li>
+</ul></li>
+<li>Build-system reorganization:
+<ul>
+  <li>Reorganize directory layout:<br>
+  <tt>lib/*</tt> &rarr; <tt>src/jit/*</tt><br>
+  <tt>src/buildvm_*.dasc</tt> &rarr; <tt>src/vm_*.dasc</tt><br>
+  <tt>src/buildvm_*.h</tt> &rarr; removed<br>
+  <tt>src/buildvm*</tt> &rarr; <tt>src/host/*</tt></li>
+  <li>Add minified Lua interpreter plus Lua BitOp (<tt>minilua</tt>) to run DynASM.</li>
+  <li>Change DynASM bit operations to use Lua BitOp</li>
+  <li>Translate only <tt>vm_*.dasc</tt> for detected target architecture.</li>
+  <li>Improve target detection for <tt>msvcbuild.bat</tt>.</li>
+  <li>Fix build issues on Cygwin and MinGW with optional MSys.</li>
+  <li>Handle cross-compiles with FPU/no-FPU or hard-fp/soft-fp ABI mismatch.</li>
+  <li>Remove some library functions for no-JIT/no-FFI builds.</li>
+  <li>Add uninstall target to top-level Makefile.</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+  <li>Preserve snapshot #0 PC for all traces.</li>
+  <li>Fix argument checks for <tt>coroutine.create()</tt>.</li>
+  <li>Command line prints version and JIT status to <tt>stdout</tt>, not <tt>stderr</tt>.</li>
+  <li>Fix userdata <tt>__gc</tt> separations at Lua state close.</li>
+  <li>Fix <tt>TDUP</tt> to <tt>HLOAD</tt> forwarding for <tt>LJ_DUALNUM</tt> builds.</li>
+  <li>Fix buffer check in bytecode writer.</li>
+  <li>Make <tt>os.date()</tt> thread-safe.</li>
+  <li>Add missing declarations for MSVC intrinsics.</li>
+  <li>Fix dispatch table modifications for return hooks.</li>
+  <li>Workaround for MSVC conversion bug (<tt>double</tt> &rarr; <tt>uint32_t</tt> &rarr; <tt>int32_t</tt>).</li>
+  <li>Fix FOLD rule <tt>(i-j)-i => 0-j</tt>.</li>
+  <li>Never use DWARF unwinder on Windows.</li>
+  <li>Fix shrinking of direct mapped blocks in builtin allocator.</li>
+  <li>Limit recursion depth in <tt>string.match()</tt> et al.</li>
+  <li>Fix late despecialization of <tt>ITERN</tt> after loop has been entered.</li>
+  <li>Fix <tt>'f'</tt> and <tt>'L'</tt> options for <tt>debug.getinfo()</tt> and <tt>lua_getinfo()</tt>.</li>
+  <li>Fix <tt>package.searchpath()</tt>.</li>
+  <li>OSX: Change dylib names to be consistent with other platforms.</li>
+  <li>Android: Workaround for broken <tt>sprintf("%g",&nbsp;-0.0)</tt>.</li>
+  <li>x86: Remove support for ancient CPUs without <tt>CMOV</tt> (before Pentium Pro).</li>
+  <li>x86: Fix register allocation for calls returning register pair.</li>
+  <li>x86/x64: Fix fusion of unsigned byte comparisons with swapped operands.</li>
+  <li>ARM: Fix <tt>tonumber()</tt> argument check.</li>
+  <li>ARM: Fix modulo operator and <tt>math.floor()</tt>/<tt>math.ceil()</tt> for <tt>inf</tt>/<tt>nan</tt>.</li>
+  <li>ARM: Invoke SPLIT pass for leftover <tt>IR_TOBIT</tt>.</li>
+  <li>ARM: Fix BASE register coalescing.</li>
+  <li>PPC: Fix interpreter state setup in callbacks.</li>
+  <li>PPC: Fix <tt>string.sub()</tt> range check.</li>
+  <li>MIPS: Support generation of MIPS/MIPSEL bytecode object files.</li>
+  <li>MIPS: Fix calls to <tt>floor()</tt>/<tt>ceil()</tt><tt>/trunc()</tt>.</li>
+  <li>ARM/PPC: Detect more target architecture variants.</li>
+  <li>ARM/PPC/e500/MIPS: Fix tailcalls from fast functions, esp. <tt>tostring()</tt>.</li>
+  <li>ARM/PPC/MIPS: Fix rematerialization of FP constants.</li>
+  <li>FFI: Don't call <tt>FreeLibrary()</tt> on our own EXE/DLL.</li>
+  <li>FFI: Resolve metamethods for constructors, too.</li>
+  <li>FFI: Properly disable callbacks on iOS (would require executable memory).</li>
+  <li>FFI: Fix cdecl string parsing during recording.</li>
+  <li>FFI: Show address pointed to for <tt>tostring(ref)</tt>, too.</li>
+  <li>FFI: Fix alignment of C call argument/return structure.</li>
+  <li>FFI: Initialize all fields of standard types.</li>
+  <li>FFI: Fix callback handling when new C&nbsp;types are declared in callback.</li>
+  <li>FFI: Fix recording of constructors for pointers.</li>
+  <li>FFI: Always resolve metamethods for pointers to structs.</li>
+  <li>FFI: Correctly propagate alignment when interning nested types.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+  <li>Add allocation sinking and store sinking optimization.</li>
+  <li>Constify immutable upvalues.</li>
+  <li>Add builtin string to integer or FP number conversion. Improves cross-platform consistency and correctness.</li>
+  <li>Create string hash slots in template tables for non-const values, too. Avoids later table resizes.</li>
+  <li>Eliminate <tt>HREFK</tt> guard for template table references.</li>
+  <li>Add various new FOLD rules.</li>
+  <li>Don't use stack unwinding for <tt>lua_yield()</tt> (slow on x64).</li>
+  <li>ARM, PPC, MIPS: Improve <tt>XLOAD</tt> operand fusion and register hinting.</li>
+  <li>PPC, MIPS: Compile <tt>math.sqrt()</tt> to sqrt instruction, if available.</li>
+  <li>FFI: Fold <tt>KPTR</tt> + constant offset in SPLIT pass.</li>
+  <li>FFI: Optimize/inline <tt>ffi.copy()</tt> and <tt>ffi.fill()</tt>.</li>
+  <li>FFI: Compile and optimize array/struct copies.</li>
+  <li>FFI: Compile <tt>ffi.typeof(cdata|ctype)</tt>, <tt>ffi.sizeof()</tt>, <tt>ffi.alignof()</tt>, <tt>ffi.offsetof()</tt> and <tt>ffi.gc()</tt>.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta10">LuaJIT 2.0.0-beta10 &mdash; 2012-05-09</h2>
+<ul>
+<li>New features:
+<ul>
+<li>The MIPS of LuaJIT is complete. It requires a CPU conforming to the
+MIPS32&nbsp;R1 architecture with hardware FPU. O32 hard-fp ABI,
+little-endian or big-endian.</li>
+<li>Auto-detect target arch via cross-compiler. No need for
+<tt>TARGET=arch</tt> anymore.</li>
+<li>Make DynASM compatible with Lua 5.2.</li>
+<li>From Lua 5.2: Try <tt>__tostring</tt> metamethod on non-string error
+messages..</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+<li>Fix parsing of hex literals with exponents.</li>
+<li>Fix bytecode dump for certain number constants.</li>
+<li>Fix argument type in error message for relative arguments.</li>
+<li>Fix argument error handling on Lua stacks without a frame.</li>
+<li>Add missing mcode limit check in assembler backend.</li>
+<li>Fix compilation on OpenBSD.</li>
+<li>Avoid recursive GC steps after GC-triggered trace exit.</li>
+<li>Replace <tt>&lt;unwind.h&gt;</tt> definitions with our own.</li>
+<li>Fix OSX build issues. Bump minimum required OSX version to 10.4.</li>
+<li>Fix discharge order of comparisons in Lua parser.</li>
+<li>Ensure running <tt>__gc</tt> of userdata created in <tt>__gc</tt>
+at state close.</li>
+<li>Limit number of userdata <tt>__gc</tt> separations at state close.</li>
+<li>Fix bytecode <tt>JMP</tt> slot range when optimizing
+<tt>and</tt>/<tt>or</tt> with constant LHS.</li>
+<li>Fix DSE of <tt>USTORE</tt>.</li>
+<li>Make <tt>lua_concat()</tt> work from C&nbsp;hook with partial frame.</li>
+<li>Add required PHIs for implicit conversions, e.g. via <tt>XREF</tt>
+forwarding.</li>
+<li>Add more comparison variants to Valgrind suppressions file.</li>
+<li>Disable loading bytecode with an extra header (BOM or <tt>#!</tt>).</li>
+<li>Fix PHI stack slot syncing.</li>
+<li>ARM: Reorder type/value tests to silence Valgrind.</li>
+<li>ARM: Fix register allocation for <tt>ldrd</tt>-optimized
+<tt>HREFK</tt>.</li>
+<li>ARM: Fix conditional branch fixup for <tt>OBAR</tt>.</li>
+<li>ARM: Invoke SPLIT pass for <tt>double</tt> args in FFI call.</li>
+<li>ARM: Handle all <tt>CALL*</tt> ops with <tt>double</tt> results in
+SPLIT pass.</li>
+<li>ARM: Fix rejoin of <tt>POW</tt> in SPLIT pass.</li>
+<li>ARM: Fix compilation of <tt>math.sinh</tt>, <tt>math.cosh</tt>,
+<tt>math.tanh</tt>.</li>
+<li>ARM, PPC: Avoid pointless arg clearing in <tt>BC_IFUNCF</tt>.</li>
+<li>PPC: Fix resume after yield from hook.</li>
+<li>PPC: Fix argument checking for <tt>rawget()</tt>.</li>
+<li>PPC: Fix fusion of floating-point <tt>XLOAD</tt>/<tt>XSTORE</tt>.</li>
+<li>PPC: Fix <tt>HREFK</tt> code generation for huge tables.</li>
+<li>PPC: Use builtin D-Cache/I-Cache sync code.</li>
+</ul></li>
+<li>FFI library:
+<ul>
+<li>Ignore empty statements in <tt>ffi.cdef()</tt>.</li>
+<li>Ignore number parsing errors while skipping definitions.</li>
+<li>Don't touch frame in callbacks with tailcalls to fast functions.</li>
+<li>Fix library unloading on POSIX systems.</li>
+<li>Finalize cdata before userdata when closing the state.</li>
+<li>Change <tt>ffi.load()</tt> library name resolution for Cygwin.</li>
+<li>Fix resolving of function name redirects on Windows/x86.</li>
+<li>Fix symbol resolving error messages on Windows.</li>
+<li>Fix blacklisting of C functions calling callbacks.</li>
+<li>Fix result type of pointer difference.</li>
+<li>Use correct PC in FFI metamethod error message.</li>
+<li>Allow <tt>'typedef _Bool int BOOL;'</tt> for the Windows API.</li>
+<li>Don't record test for bool result of call, if ignored.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta9">LuaJIT 2.0.0-beta9 &mdash; 2011-12-14</h2>
+<ul>
+<li>New features:
+<ul>
+<li>PPC port of LuaJIT is complete. Default is the dual-number port
+(usually faster). Single-number port selectable via <tt>src/Makefile</tt>
+at build time.</li>
+<li>Add FFI callback support.</li>
+<li>Extend <tt>-b</tt> to generate <tt>.c</tt>, <tt>.h</tt> or <tt>.obj/.o</tt>
+files with embedded bytecode.</li>
+<li>Allow loading embedded bytecode with <tt>require()</tt>.</li>
+<li>From Lua 5.2: Change to <tt>'\z'</tt> escape. Reject undefined escape
+sequences.</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+<li>Fix OSX 10.7 build. Fix <tt>install_name</tt> and versioning on OSX.</li>
+<li>Fix iOS build.</li>
+<li>Install <tt>dis_arm.lua</tt>, too.</li>
+<li>Mark installed shared library as executable.</li>
+<li>Add debug option to <tt>msvcbuild.bat</tt> and improve error handling.</li>
+<li>Fix data-flow analysis for iterators.</li>
+<li>Fix forced unwinding triggered by external unwinder.</li>
+<li>Record missing <tt>for</tt> loop slot loads (return to lower frame).</li>
+<li>Always use ANSI variants of Windows system functions.</li>
+<li>Fix GC barrier for multi-result table constructor (<tt>TSETM</tt>).</li>
+<li>Fix/add various FOLD rules.</li>
+<li>Add potential PHI for number conversions due to type instability.</li>
+<li>Do not eliminate PHIs only referenced from other PHIs.</li>
+<li>Correctly anchor implicit number to string conversions in Lua/C API.</li>
+<li>Fix various stack limit checks.</li>
+<li>x64: Use thread-safe exceptions for external unwinding (GCC platforms).</li>
+<li>x64: Fix result type of cdata index conversions.</li>
+<li>x64: Fix <tt>math.random()</tt> and <tt>bit.bswap()</tt> code generation.</li>
+<li>x64: Fix <tt>lightuserdata</tt> comparisons.</li>
+<li>x64: Always extend stack-passed arguments to pointer size.</li>
+<li>ARM: Many fixes to code generation backend.</li>
+<li>PPC/e500: Fix dispatch for binop metamethods.</li>
+<li>PPC/e500: Save/restore condition registers when entering/leaving the VM.</li>
+<li>PPC/e500: Fix write barrier in stores of strings to upvalues.</li>
+</ul></li>
+<li>FFI library:
+<ul>
+<li>Fix C comment parsing.</li>
+<li>Fix snapshot optimization for cdata comparisons.</li>
+<li>Fix recording of const/enum lookups in namespaces.</li>
+<li>Fix call argument and return handling for <tt>I8/U8/I16/U16</tt> types.</li>
+<li>Fix unfused loads of float fields.</li>
+<li>Fix <tt>ffi.string()</tt> recording.</li>
+<li>Save <tt>GetLastError()</tt> around <tt>ffi.load()</tt> and symbol
+resolving, too.</li>
+<li>Improve ld script detection in <tt>ffi.load()</tt>.</li>
+<li>Record loads/stores to external variables in namespaces.</li>
+<li>Compile calls to stdcall, fastcall and vararg functions.</li>
+<li>Treat function ctypes like pointers in comparisons.</li>
+<li>Resolve <tt>__call</tt> metamethod for pointers, too.</li>
+<li>Record C function calls with bool return values.</li>
+<li>Record <tt>ffi.errno()</tt>.</li>
+<li>x86: Fix number to <tt>uint32_t</tt> conversion rounding.</li>
+<li>x86: Fix 64 bit arithmetic in assembler backend.</li>
+<li>x64: Fix struct-by-value calling conventions.</li>
+<li>ARM: Ensure invocation of SPLIT pass for float conversions.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>Display trace types with <tt>-jv</tt> and <tt>-jdump</tt>.</li>
+<li>Record isolated calls. But prefer recording loops over calls.</li>
+<li>Specialize to prototype for non-monomorphic functions. Solves the
+trace-explosion problem for closure-heavy programming styles.</li>
+<li>Always generate a portable <tt>vmdef.lua</tt>. Easier for distros.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta8">LuaJIT 2.0.0-beta8 &mdash; 2011-06-23</h2>
+<ul>
+<li>New features:
+<ul>
+<li>Soft-float ARM port of LuaJIT is complete.</li>
+<li>Add support for bytecode loading/saving and <tt>-b</tt> command line
+option.</li>
+<li>From Lua 5.2: <tt>__len</tt> metamethod for tables
+(disabled by default).</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+<li>ARM: Misc. fixes for interpreter.</li>
+<li>x86/x64: Fix <tt>bit.*</tt> argument checking in interpreter.</li>
+<li>Catch early out-of-memory in memory allocator initialization.</li>
+<li>Fix data-flow analysis for paths leading to an upvalue close.</li>
+<li>Fix check for missing arguments in <tt>string.format()</tt>.</li>
+<li>Fix Solaris/x86 build (note: not a supported target).</li>
+<li>Fix recording of loops with instable directions in side traces.</li>
+<li>x86/x64: Fix fusion of comparisons with <tt>u8</tt>/<tt>u16</tt>
+<tt>XLOAD</tt>.</li>
+<li>x86/x64: Fix register allocation for variable shifts.</li>
+</ul></li>
+<li>FFI library:
+<ul>
+<li>Add <tt>ffi.errno()</tt>. Save <tt>errno</tt>/<tt>GetLastError()</tt>
+around allocations etc.</li>
+<li>Fix <tt>__gc</tt> for VLA/VLS cdata objects.</li>
+<li>Fix recording of casts from 32 bit cdata pointers to integers.</li>
+<li><tt>tonumber(cdata)</tt> returns <tt>nil</tt> for non-numbers.</li>
+<li>Show address pointed to for <tt>tostring(pointer)</tt>.</li>
+<li>Print <tt>NULL</tt> pointers as <tt>"cdata&lt;... *&gt;: NULL"</tt>.</li>
+<li>Support <tt>__tostring</tt> metamethod for pointers to structs, too.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>More tuning for loop unrolling heuristics.</li>
+<li>Flatten and compress in-memory debug info (saves ~70%).</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta7">LuaJIT 2.0.0-beta7 &mdash; 2011-05-05</h2>
+<ul>
+<li>New features:
+<ul>
+<li>ARM port of the LuaJIT interpreter is complete.</li>
+<li>FFI library: Add <tt>ffi.gc()</tt>, <tt>ffi.metatype()</tt>,
+<tt>ffi.istype()</tt>.</li>
+<li>FFI library: Resolve ld script redirection in <tt>ffi.load()</tt>.</li>
+<li>From Lua 5.2: <tt>package.searchpath()</tt>, <tt>fp:read("*L")</tt>,
+<tt>load(string)</tt>.</li>
+<li>From Lua 5.2, disabled by default: empty statement,
+<tt>table.unpack()</tt>, modified <tt>coroutine.running()</tt>.</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+<li>FFI library: numerous fixes.</li>
+<li>Fix type mismatches in store-to-load forwarding.</li>
+<li>Fix error handling within metamethods.</li>
+<li>Fix <tt>table.maxn()</tt>.</li>
+<li>Improve accuracy of <tt>x^-k</tt> on x64.</li>
+<li>Fix code generation for Intel Atom in x64 mode.</li>
+<li>Fix narrowing of POW.</li>
+<li>Fix recording of retried fast functions.</li>
+<li>Fix code generation for <tt>bit.bnot()</tt> and multiplies.</li>
+<li>Fix error location within cpcall frames.</li>
+<li>Add workaround for old libgcc unwind bug.</li>
+<li>Fix <tt>lua_yield()</tt> and <tt>getmetatable(lightuserdata)</tt> on x64.</li>
+<li>Misc. fixes for PPC/e500 interpreter.</li>
+<li>Fix stack slot updates for down-recursion.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>Add dual-number mode (int/double) for the VM. Enabled for ARM.</li>
+<li>Improve narrowing of arithmetic operators and <tt>for</tt> loops.</li>
+<li>Tune loop unrolling heuristics and increase trace recorder limits.</li>
+<li>Eliminate dead slots in snapshots using bytecode data-flow analysis.</li>
+<li>Avoid phantom stores to proxy tables.</li>
+<li>Optimize lookups in empty proxy tables.</li>
+<li>Improve bytecode optimization of <tt>and</tt>/<tt>or</tt> operators.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta6">LuaJIT 2.0.0-beta6 &mdash; 2011-02-11</h2>
+<ul>
+<li>New features:
+<ul>
+<li>PowerPC/e500v2 port of the LuaJIT interpreter is complete.</li>
+<li>Various minor features from Lua 5.2: Hex escapes in literals,
+<tt>'\*'</tt> escape, reversible <tt>string.format("%q",s)</tt>,
+<tt>"%g"</tt> pattern, <tt>table.sort</tt> checks callbacks,
+<tt>os.exit(status|true|false[,close])</tt>.</li>
+<li>Lua 5.2 <tt>__pairs</tt> and <tt>__ipairs</tt> metamethods
+(disabled by default).</li>
+<li>Initial release of the FFI library.</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+<li>Fix <tt>string.format()</tt> for non-finite numbers.</li>
+<li>Fix memory leak when compiled to use the built-in allocator.</li>
+<li>x86/x64: Fix unnecessary resize in <tt>TSETM</tt> bytecode.</li>
+<li>Fix various GC issues with traces and <tt>jit.flush()</tt>.</li>
+<li>x64: Fix fusion of indexes for array references.</li>
+<li>x86/x64: Fix stack overflow handling for coroutine results.</li>
+<li>Enable low-2GB memory allocation on FreeBSD/x64.</li>
+<li>Fix <tt>collectgarbage("count")</tt> result if more than 2GB is in use.</li>
+<li>Fix parsing of hex floats.</li>
+<li>x86/x64: Fix loop branch inversion with trailing
+<tt>HREF+NE/EQ</tt>.</li>
+<li>Add <tt>jit.os</tt> string.</li>
+<li><tt>coroutine.create()</tt> permits running C functions, too.</li>
+<li>Fix OSX build to work with newer ld64 versions.</li>
+<li>Fix bytecode optimization of <tt>and</tt>/<tt>or</tt> operators.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>Emit specialized bytecode for <tt>pairs()</tt>/<tt>next()</tt>.</li>
+<li>Improve bytecode coalescing of <tt>nil</tt> constants.</li>
+<li>Compile calls to vararg functions.</li>
+<li>Compile <tt>select()</tt>.</li>
+<li>Improve alias analysis, esp. for loads from allocations.</li>
+<li>Tuning of various compiler heuristics.</li>
+<li>Refactor and extend IR conversion instructions.</li>
+<li>x86/x64: Various backend enhancements related to the FFI.</li>
+<li>Add SPLIT pass to split 64 bit IR instructions for 32 bit CPUs.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta5">LuaJIT 2.0.0-beta5 &mdash; 2010-08-24</h2>
+<ul>
+<li>Correctness and completeness:
+<ul>
+<li>Fix trace exit dispatch to function headers.</li>
+<li>Fix Windows and OSX builds with LUAJIT_DISABLE_JIT.</li>
+<li>Reorganize and fix placement of generated machine code on x64.</li>
+<li>Fix TNEW in x64 interpreter.</li>
+<li>Do not eliminate PHIs for values only referenced from side exits.</li>
+<li>OS-independent canonicalization of strings for non-finite numbers.</li>
+<li>Fix <tt>string.char()</tt> range check on x64.</li>
+<li>Fix <tt>tostring()</tt> resolving within <tt>print()</tt>.</li>
+<li>Fix error handling for <tt>next()</tt>.</li>
+<li>Fix passing of constant arguments to external calls on x64.</li>
+<li>Fix interpreter argument check for two-argument SSE math functions.</li>
+<li>Fix C frame chain corruption caused by <tt>lua_cpcall()</tt>.</li>
+<li>Fix return from <tt>pcall()</tt> within active hook.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>Replace on-trace GC frame syncing with interpreter exit.</li>
+<li>Improve hash lookup specialization by not removing dead keys during GC.</li>
+<li>Turn traces into true GC objects.</li>
+<li>Avoid starting a GC cycle immediately after library init.</li>
+<li>Add weak guards to improve dead-code elimination.</li>
+<li>Speed up string interning.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta4">LuaJIT 2.0.0-beta4 &mdash; 2010-03-28</h2>
+<ul>
+<li>Correctness and completeness:
+<ul>
+<li>Fix precondition for on-trace creation of table keys.</li>
+<li>Fix <tt>{f()}</tt> on x64 when table is resized.</li>
+<li>Fix folding of ordered comparisons with same references.</li>
+<li>Fix snapshot restores for multi-result bytecodes.</li>
+<li>Fix potential hang when recording bytecode with nested closures.</li>
+<li>Fix recording of <tt>getmetatable()</tt>, <tt>tonumber()</tt> and bad argument types.</li>
+<li>Fix SLOAD fusion across returns to lower frames.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>Add array bounds check elimination. <tt>-Oabc</tt> is enabled by default.</li>
+<li>More tuning for x64, e.g. smaller table objects.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta3">LuaJIT 2.0.0-beta3 &mdash; 2010-03-07</h2>
+<ul>
+<li>LuaJIT x64 port:
+<ul>
+<li>Port integrated memory allocator to Linux/x64, Windows/x64 and OSX/x64.</li>
+<li>Port interpreter and JIT compiler to x64.</li>
+<li>Port DynASM to x64.</li>
+<li>Many 32/64 bit cleanups in the VM.</li>
+<li>Allow building the interpreter with either x87 or SSE2 arithmetics.</li>
+<li>Add external unwinding and C++ exception interop (default on x64).</li>
+</ul></li>
+<li>Correctness and completeness:
+<ul>
+<li>Fix constructor bytecode generation for certain conditional values.</li>
+<li>Fix some cases of ordered string comparisons.</li>
+<li>Fix <tt>lua_tocfunction()</tt>.</li>
+<li>Fix cutoff register in JMP bytecode for some conditional expressions.</li>
+<li>Fix PHI marking algorithm for references from variant slots.</li>
+<li>Fix <tt>package.cpath</tt> for non-default PREFIX.</li>
+<li>Fix DWARF2 frame unwind information for interpreter on OSX.</li>
+<li>Drive the GC forward on string allocations in the parser.</li>
+<li>Implement call/return hooks (zero-cost if disabled).</li>
+<li>Implement yield from C hooks.</li>
+<li>Disable JIT compiler on older non-SSE2 CPUs instead of aborting.</li>
+</ul></li>
+<li>Structural and performance enhancements:
+<ul>
+<li>Compile recursive code (tail-, up- and down-recursion).</li>
+<li>Improve heuristics for bytecode penalties and blacklisting.</li>
+<li>Split CALL/FUNC recording and clean up fast function call semantics.</li>
+<li>Major redesign of internal function call handling.</li>
+<li>Improve FOR loop const specialization and integerness checks.</li>
+<li>Switch to pre-initialized stacks. Avoid frame-clearing.</li>
+<li>Colocation of prototypes and related data: bytecode, constants, debug info.</li>
+<li>Cleanup parser and streamline bytecode generation.</li>
+<li>Add support for weak IR references to register allocator.</li>
+<li>Switch to compressed, extensible snapshots.</li>
+<li>Compile returns to frames below the start frame.</li>
+<li>Improve alias analysis of upvalues using a disambiguation hash value.</li>
+<li>Compile floor/ceil/trunc to SSE2 helper calls or SSE4.1 instructions.</li>
+<li>Add generic C call handling to IR and backend.</li>
+<li>Improve KNUM fuse vs. load heuristics.</li>
+<li>Compile various <tt>io.*()</tt> functions.</li>
+<li>Compile <tt>math.sinh()</tt>, <tt>math.cosh()</tt>, <tt>math.tanh()</tt>
+and <tt>math.random()</tt>.</li>
+</ul></li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta2">LuaJIT 2.0.0-beta2 &mdash; 2009-11-09</h2>
+<ul>
+<li>Reorganize build system. Build static+shared library on POSIX.</li>
+<li>Allow C++ exception conversion on all platforms
+using a wrapper function.</li>
+<li>Automatically catch C++ exceptions and rethrow Lua error
+(DWARF2 only).</li>
+<li>Check for the correct x87 FPU precision at strategic points.</li>
+<li>Always use wrappers for libm functions.</li>
+<li>Resurrect metamethod name strings before copying them.</li>
+<li>Mark current trace, even if compiler is idle.</li>
+<li>Ensure FILE metatable is created only once.</li>
+<li>Fix type comparisons when different integer types are involved.</li>
+<li>Fix <tt>getmetatable()</tt> recording.</li>
+<li>Fix TDUP with dead keys in template table.</li>
+<li><tt>jit.flush(tr)</tt> returns status.
+Prevent manual flush of a trace that's still linked.</li>
+<li>Improve register allocation heuristics for invariant references.</li>
+<li>Compile the push/pop variants of <tt>table.insert()</tt> and
+<tt>table.remove()</tt>.</li>
+<li>Compatibility with MSVC <tt>link&nbsp/debug</tt>.</li>
+<li>Fix <tt>lua_iscfunction()</tt>.</li>
+<li>Fix <tt>math.random()</tt> when compiled with <tt>-fpic</tt> (OSX).</li>
+<li>Fix <tt>table.maxn()</tt>.</li>
+<li>Bump <tt>MACOSX_DEPLOYMENT_TARGET</tt> to <tt>10.4</tt></li>
+<li><tt>luaL_check*()</tt> and <tt>luaL_opt*()</tt> now support
+negative arguments, too.<br>
+This matches the behavior of Lua 5.1, but not the specification.</li>
+</ul>
+
+<h2 id="LuaJIT-2.0.0-beta1">LuaJIT 2.0.0-beta1 &mdash; 2009-10-31</h2>
+<ul>
+<li>This is the first public release of LuaJIT 2.0.</li>
+<li>The whole VM has been rewritten from the ground up, so there's
+no point in listing differences over earlier versions.</li>
+</ul>
+</div>
+
+<div class="major" style="background: #ffff80;">
+<h2 id="LuaJIT-1.1.8">LuaJIT 1.1.8 &mdash; 2012-04-16</h2>
+<ul>
+<li>Merged with Lua 5.1.5. Also integrated fixes for all
+<a href="http://www.lua.org/bugs.html#5.1.5"><span class="ext">&raquo;</span>&nbsp;<span class="ext">&raquo;</span>&nbsp;currently known bugs in Lua 5.1.5</a>.</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.7">LuaJIT 1.1.7 &mdash; 2011-05-05</h2>
+<ul>
+<li>Added fixes for the
+<a href="http://www.lua.org/bugs.html#5.1.4"><span class="ext">&raquo;</span>&nbsp;currently known bugs in Lua 5.1.4</a>.</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.6">LuaJIT 1.1.6 &mdash; 2010-03-28</h2>
+<ul>
+<li>Added fixes for the
+<a href="http://www.lua.org/bugs.html#5.1.4"><span class="ext">&raquo;</span>&nbsp;currently known bugs in Lua 5.1.4</a>.</li>
+<li>Removed wrong GC check in <tt>jit_createstate()</tt>.
+Thanks to Tim Mensch.</li>
+<li>Fixed bad assertions while compiling <tt>table.insert()</tt> and
+<tt>table.remove()</tt>.</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.5">LuaJIT 1.1.5 &mdash; 2008-10-25</h2>
+<ul>
+<li>Merged with Lua 5.1.4. Fixes all
+<a href="http://www.lua.org/bugs.html#5.1.3"><span class="ext">&raquo;</span>&nbsp;known bugs in Lua 5.1.3</a>.</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.4">LuaJIT 1.1.4 &mdash; 2008-02-05</h2>
+<ul>
+<li>Merged with Lua 5.1.3. Fixes all
+<a href="http://www.lua.org/bugs.html#5.1.2"><span class="ext">&raquo;</span>&nbsp;known bugs in Lua 5.1.2</a>.</li>
+<li>Fixed possible (but unlikely) stack corruption while compiling
+<tt>k^x</tt> expressions.</li>
+<li>Fixed DynASM template for cmpss instruction.</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.3">LuaJIT 1.1.3 &mdash; 2007-05-24</h2>
+<ul>
+<li>Merged with Lua 5.1.2. Fixes all
+<a href="http://www.lua.org/bugs.html#5.1.1"><span class="ext">&raquo;</span>&nbsp;known bugs in Lua 5.1.1</a>.</li>
+<li>Merged pending Lua 5.1.x fixes: "return -nil" bug, spurious count hook call.</li>
+<li>Remove a (sometimes) wrong assertion in <tt>luaJIT_findpc()</tt>.</li>
+<li>DynASM now allows labels for displacements and <tt>.aword</tt>.</li>
+<li>Fix some compiler warnings for DynASM glue (internal API change).</li>
+<li>Correct naming for SSSE3 (temporarily known as SSE4) in DynASM and x86 disassembler.</li>
+<li>The loadable debug modules now handle redirection to stdout
+(e.g. <tt>-j&nbsp;trace=-</tt>).</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.2">LuaJIT 1.1.2 &mdash; 2006-06-24</h2>
+<ul>
+<li>Fix MSVC inline assembly: use only local variables with
+<tt>lua_number2int()</tt>.</li>
+<li>Fix "attempt to call a thread value" bug on Mac OS X:
+make values of consts used as lightuserdata keys unique
+to avoid joining by the compiler/linker.</li>
+</ul>
+
+<h2 id="LuaJIT-1.1.1">LuaJIT 1.1.1 &mdash; 2006-06-20</h2>
+<ul>
+<li>Merged with Lua 5.1.1. Fixes all
+<a href="http://www.lua.org/bugs.html#5.1"><span class="ext">&raquo;</span>&nbsp;known bugs in Lua 5.1</a>.</li>
+<li>Enforce (dynamic) linker error for EXE/DLL version mismatches.</li>
+<li>Minor changes to DynASM: faster pre-processing, smaller encoding
+for some immediates.</li>
+</ul>
+<p>
+This release is in sync with Coco 1.1.1 (see the
+<a href="http://coco.luajit.org/changes.html"><span class="ext">&raquo;</span>&nbsp;Coco Change History</a>).
+</p>
+
+<h2 id="LuaJIT-1.1.0">LuaJIT 1.1.0 &mdash; 2006-03-13</h2>
+<ul>
+<li>Merged with Lua 5.1 (final).</li>
+
+<li>New JIT call frame setup:
+<ul>
+<li>The C stack is kept 16 byte aligned (faster).
+Mandatory for Mac OS X on Intel, too.</li>
+<li>Faster calling conventions for internal C helper functions.</li>
+<li>Better instruction scheduling for function prologue, OP_CALL and
+OP_RETURN.</li>
+</ul></li>
+
+<li>Miscellaneous optimizations:
+<ul>
+<li>Faster loads of FP constants. Remove narrow-to-wide store-to-load
+forwarding stalls.</li>
+<li>Use (scalar) SSE2 ops (if the CPU supports it) to speed up slot moves
+and FP to integer conversions.</li>
+<li>Optimized the two-argument form of <tt>OP_CONCAT</tt> (<tt>a..b</tt>).</li>
+<li>Inlined <tt>OP_MOD</tt> (<tt>a%b</tt>).
+With better accuracy than the C variant, too.</li>
+<li>Inlined <tt>OP_POW</tt> (<tt>a^b</tt>). Unroll <tt>x^k</tt> or
+use <tt>k^x = 2^(log2(k)*x)</tt> or call <tt>pow()</tt>.</li>
+</ul></li>
+
+<li>Changes in the optimizer:
+<ul>
+<li>Improved hinting for table keys derived from table values
+(<tt>t1[t2[x]]</tt>).</li>
+<li>Lookup hinting now works with arbitrary object types and
+supports index chains, too.</li>
+<li>Generate type hints for arithmetic and comparison operators,
+OP_LEN, OP_CONCAT and OP_FORPREP.</li>
+<li>Remove several hint definitions in favour of a generic COMBINE hint.</li>
+<li>Complete rewrite of <tt>jit.opt_inline</tt> module
+(ex <tt>jit.opt_lib</tt>).</li>
+</ul></li>
+
+<li>Use adaptive deoptimization:
+<ul>
+<li>If runtime verification of a contract fails, the affected
+instruction is recompiled and patched on-the-fly.
+Regular programs will trigger deoptimization only occasionally.</li>
+<li>This avoids generating code for uncommon fallback cases
+most of the time. Generated code is up to 30% smaller compared to
+LuaJIT&nbsp;1.0.3.</li>
+<li>Deoptimization is used for many opcodes and contracts:
+<ul>
+<li>OP_CALL, OP_TAILCALL: type mismatch for callable.</li>
+<li>Inlined calls: closure mismatch, parameter number and type mismatches.</li>
+<li>OP_GETTABLE, OP_SETTABLE: table or key type and range mismatches.</li>
+<li>All arithmetic and comparison operators, OP_LEN, OP_CONCAT,
+OP_FORPREP: operand type and range mismatches.</li>
+</ul></li>
+<li>Complete redesign of the debug and traceback info
+(bytecode &harr; mcode) to support deoptimization.
+Much more flexible and needs only 50% of the space.</li>
+<li>The modules <tt>jit.trace</tt>, <tt>jit.dumphints</tt> and
+<tt>jit.dump</tt> handle deoptimization.</li>
+</ul></li>
+
+<li>Inlined many popular library functions
+(for commonly used arguments only):
+<ul>
+<li>Most <tt>math.*</tt> functions (the 18 most used ones)
+[2x-10x faster].</li>
+<li><tt>string.len</tt>, <tt>string.sub</tt> and <tt>string.char</tt>
+[2x-10x faster].</li>
+<li><tt>table.insert</tt>, <tt>table.remove</tt> and <tt>table.getn</tt>
+[3x-5x faster].</li>
+<li><tt>coroutine.yield</tt> and <tt>coroutine.resume</tt>
+[3x-5x faster].</li>
+<li><tt>pairs</tt>, <tt>ipairs</tt> and the corresponding iterators
+[8x-15x faster].</li>
+</ul></li>
+
+<li>Changes in the core and loadable modules and the stand-alone executable:
+<ul>
+<li>Added <tt>jit.version</tt>, <tt>jit.version_num</tt>
+and <tt>jit.arch</tt>.</li>
+<li>Reorganized some internal API functions (<tt>jit.util.*mcode*</tt>).</li>
+<li>The <tt>-j dump</tt> output now shows JSUB names, too.</li>
+<li>New x86 disassembler module written in pure Lua. No dependency
+on ndisasm anymore. Flexible API, very compact (500 lines)
+and complete (x87, MMX, SSE, SSE2, SSE3, SSSE3, privileged instructions).</li>
+<li><tt>luajit -v</tt> prints the LuaJIT version and copyright
+on a separate line.</li>
+</ul></li>
+
+<li>Added SSE, SSE2, SSE3 and SSSE3 support to DynASM.</li>
+<li>Miscellaneous doc changes. Added a section about
+<a href="install.html#embedding">embedding LuaJIT</a>.</li>
+</ul>
+<p>
+This release is in sync with Coco 1.1.0 (see the
+<a href="http://coco.luajit.org/changes.html"><span class="ext">&raquo;</span>&nbsp;Coco Change History</a>).
+</p>
+</div>
+
+<div class="major" style="background: #ffffd0;">
+<h2 id="LuaJIT-1.0.3">LuaJIT 1.0.3 &mdash; 2005-09-08</h2>
+<ul>
+<li>Even more docs.</li>
+<li>Unified closure checks in <tt>jit.*</tt>.</li>
+<li>Fixed some range checks in <tt>jit.util.*</tt>.</li>
+<li>Fixed __newindex call originating from <tt>jit_settable_str()</tt>.</li>
+<li>Merged with Lua 5.1 alpha (including early bug fixes).</li>
+</ul>
+<p>
+This is the first public release of LuaJIT.
+</p>
+
+<h2 id="LuaJIT-1.0.2">LuaJIT 1.0.2 &mdash; 2005-09-02</h2>
+<ul>
+<li>Add support for flushing the Valgrind translation cache <br>
+(<tt>MYCFLAGS= -DUSE_VALGRIND</tt>).</li>
+<li>Add support for freeing executable mcode memory to the <tt>mmap()</tt>-based
+variant for POSIX systems.</li>
+<li>Reorganized the C&nbsp;function signature handling in
+<tt>jit.opt_lib</tt>.</li>
+<li>Changed to index-based hints for inlining C&nbsp;functions.
+Still no support in the backend for inlining.</li>
+<li>Hardcode <tt>HEAP_CREATE_ENABLE_EXECUTE</tt> value if undefined.</li>
+<li>Misc. changes to the <tt>jit.*</tt> modules.</li>
+<li>Misc. changes to the Makefiles.</li>
+<li>Lots of new docs.</li>
+<li>Complete doc reorg.</li>
+</ul>
+<p>
+Not released because Lua 5.1 alpha came out today.
+</p>
+
+<h2 id="LuaJIT-1.0.1">LuaJIT 1.0.1 &mdash; 2005-08-31</h2>
+<ul>
+<li>Missing GC step in <tt>OP_CONCAT</tt>.</li>
+<li>Fix result handling for C &ndash;> JIT calls.</li>
+<li>Detect CPU feature bits.</li>
+<li>Encode conditional moves (<tt>fucomip</tt>) only when supported.</li>
+<li>Add fallback instructions for FP compares.</li>
+<li>Add support for <tt>LUA_COMPAT_VARARG</tt>. Still disabled by default.</li>
+<li>MSVC needs a specific place for the <tt>CALLBACK</tt> attribute
+(David Burgess).</li>
+<li>Misc. doc updates.</li>
+</ul>
+<p>
+Interim non-public release.
+Special thanks to Adam D. Moss for reporting most of the bugs.
+</p>
+
+<h2 id="LuaJIT-1.0.0">LuaJIT 1.0.0 &mdash; 2005-08-29</h2>
+<p>
+This is the initial non-public release of LuaJIT.
+</p>
+</div>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/contact.html b/lib/luajit/doc/contact.html
new file mode 100644
index 00000000..0483a829
--- /dev/null
+++ b/lib/luajit/doc/contact.html
@@ -0,0 +1,102 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Contact</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Contact</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+Please send general questions to the
+<a href="http://luajit.org/list.html"><span class="ext">&raquo;</span>&nbsp;LuaJIT mailing list</a>.
+You can also send any questions you have directly to me:
+</p>
+
+<script type="text/javascript">
+<!--
+var xS="@-:\" .0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ<abc>defghijklmnopqrstuvwxyz";function xD(s)
+{var len=s.length;var r="";for(var i=0;i<len;i++)
+{var c=s.charAt(i);var n=xS.indexOf(c);if(n!=-1)c=xS.charAt(69-n);r+=c;}
+document.write("<"+"p>"+r+"<"+"/p>\n");}
+//-->
+</script>
+<script type="text/javascript">
+<!--
+xD("fyZKB8xv\"FJytmz8.KAB0u52D")
+//--></script>
+<noscript>
+<p><img src="img/contact.png" alt="Contact info in image" width="170" height="13">
+</p>
+</noscript>
+
+<h2>Copyright</h2>
+<p>
+All documentation is
+Copyright &copy; 2005-2014 Mike Pall.
+</p>
+
+
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/ext_c_api.html b/lib/luajit/doc/ext_c_api.html
new file mode 100644
index 00000000..48503361
--- /dev/null
+++ b/lib/luajit/doc/ext_c_api.html
@@ -0,0 +1,187 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Lua/C API Extensions</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Lua/C API Extensions</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a class="current" href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+LuaJIT adds some extensions to the standard Lua/C API. The LuaJIT include
+directory must be in the compiler search path (<tt>-I<i>path</i></tt>)
+to be able to include the required header for C code:
+</p>
+<pre class="code">
+#include "luajit.h"
+</pre>
+<p>
+Or for C++ code:
+</p>
+<pre class="code">
+#include "lua.hpp"
+</pre>
+
+<h2 id="luaJIT_setmode"><tt>luaJIT_setmode(L, idx, mode)</tt>
+&mdash; Control VM</h2>
+<p>
+This is a C API extension to allow control of the VM from C code. The
+full prototype of <tt>LuaJIT_setmode</tt> is:
+</p>
+<pre class="code">
+LUA_API int luaJIT_setmode(lua_State *L, int idx, int mode);
+</pre>
+<p>
+The returned status is either success (<tt>1</tt>) or failure (<tt>0</tt>).
+The second argument is either <tt>0</tt> or a stack index (similar to the
+other Lua/C API functions).
+</p>
+<p>
+The third argument specifies the mode, which is 'or'ed with a flag.
+The flag can be <tt>LUAJIT_MODE_OFF</tt> to turn a feature on,
+<tt>LUAJIT_MODE_ON</tt> to turn a feature off, or
+<tt>LUAJIT_MODE_FLUSH</tt> to flush cached code.
+</p>
+<p>
+The following modes are defined:
+</p>
+
+<h3 id="mode_engine"><tt>luaJIT_setmode(L, 0, LUAJIT_MODE_ENGINE|flag)</tt></h3>
+<p>
+Turn the whole JIT compiler on or off or flush the whole cache of compiled code.
+</p>
+
+<h3 id="mode_func"><tt>luaJIT_setmode(L, idx, LUAJIT_MODE_FUNC|flag)</tt><br>
+<tt>luaJIT_setmode(L, idx, LUAJIT_MODE_ALLFUNC|flag)</tt><br>
+<tt>luaJIT_setmode(L, idx, LUAJIT_MODE_ALLSUBFUNC|flag)</tt></h3>
+<p>
+This sets the mode for the function at the stack index <tt>idx</tt> or
+the parent of the calling function (<tt>idx = 0</tt>). It either
+enables JIT compilation for a function, disables it and flushes any
+already compiled code or only flushes already compiled code. This
+applies recursively to all sub-functions of the function with
+<tt>LUAJIT_MODE_ALLFUNC</tt> or only to the sub-functions with
+<tt>LUAJIT_MODE_ALLSUBFUNC</tt>.
+</p>
+
+<h3 id="mode_trace"><tt>luaJIT_setmode(L, trace,<br>
+&nbsp;&nbsp;LUAJIT_MODE_TRACE|LUAJIT_MODE_FLUSH)</tt></h3>
+<p>
+Flushes the specified root trace and all of its side traces from the cache.
+The code for the trace will be retained as long as there are any other
+traces which link to it.
+</p>
+
+<h3 id="mode_wrapcfunc"><tt>luaJIT_setmode(L, idx, LUAJIT_MODE_WRAPCFUNC|flag)</tt></h3>
+<p>
+This mode defines a wrapper function for calls to C functions. If
+called with <tt>LUAJIT_MODE_ON</tt>, the stack index at <tt>idx</tt>
+must be a <tt>lightuserdata</tt> object holding a pointer to the wrapper
+function. From now on all C functions are called through the wrapper
+function. If called with <tt>LUAJIT_MODE_OFF</tt> this mode is turned
+off and all C functions are directly called.
+</p>
+<p>
+The wrapper function can be used for debugging purposes or to catch
+and convert foreign exceptions. But please read the section on
+<a href="extensions.html#exceptions">C++&nbsp;exception interoperability</a>
+first. Recommended usage can be seen in this C++ code excerpt:
+</p>
+<pre class="code">
+#include &lt;exception&gt;
+#include "lua.hpp"
+
+// Catch C++ exceptions and convert them to Lua error messages.
+// Customize as needed for your own exception classes.
+static int wrap_exceptions(lua_State *L, lua_CFunction f)
+{
+  try {
+    return f(L);  // Call wrapped function and return result.
+  } catch (const char *s) {  // Catch and convert exceptions.
+    lua_pushstring(L, s);
+  } catch (std::exception& e) {
+    lua_pushstring(L, e.what());
+  } catch (...) {
+    lua_pushliteral(L, "caught (...)");
+  }
+  return lua_error(L);  // Rethrow as a Lua error.
+}
+
+static int myinit(lua_State *L)
+{
+  ...
+  // Define wrapper function and enable it.
+  lua_pushlightuserdata(L, (void *)wrap_exceptions);
+  luaJIT_setmode(L, -1, LUAJIT_MODE_WRAPCFUNC|LUAJIT_MODE_ON);
+  lua_pop(L, 1);
+  ...
+}
+</pre>
+<p>
+Note that you can only define <b>a single global wrapper function</b>,
+so be careful when using this mechanism from multiple C++ modules.
+Also note that this mechanism is not without overhead.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/ext_ffi.html b/lib/luajit/doc/ext_ffi.html
new file mode 100644
index 00000000..fa9ca971
--- /dev/null
+++ b/lib/luajit/doc/ext_ffi.html
@@ -0,0 +1,330 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>FFI Library</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>FFI Library</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a class="current" href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+
+The FFI library allows <b>calling external C&nbsp;functions</b> and
+<b>using C&nbsp;data structures</b> from pure Lua code.
+
+</p>
+<p>
+
+The FFI library largely obviates the need to write tedious manual
+Lua/C bindings in C. No need to learn a separate binding language
+&mdash; <b>it parses plain C&nbsp;declarations!</b> These can be
+cut-n-pasted from C&nbsp;header files or reference manuals. It's up to
+the task of binding large libraries without the need for dealing with
+fragile binding generators.
+
+</p>
+<p>
+The FFI library is tightly integrated into LuaJIT (it's not available
+as a separate module). The code generated by the JIT-compiler for
+accesses to C&nbsp;data structures from Lua code is on par with the
+code a C&nbsp;compiler would generate. Calls to C&nbsp;functions can
+be inlined in JIT-compiled code, unlike calls to functions bound via
+the classic Lua/C API.
+</p>
+<p>
+This page gives a short introduction to the usage of the FFI library.
+<em>Please use the FFI sub-topics in the navigation bar to learn more.</em>
+</p>
+
+<h2 id="call">Motivating Example: Calling External C Functions</h2>
+<p>
+It's really easy to call an external C&nbsp;library function:
+</p>
+<pre class="code mark">
+<span class="codemark">&#9312;
+&#9313;
+
+
+&#9314;</span>local ffi = require("ffi")
+ffi.cdef[[
+<span style="color:#00a000;">int printf(const char *fmt, ...);</span>
+]]
+ffi.C.printf("Hello %s!", "world")
+</pre>
+<p>
+So, let's pick that apart:
+</p>
+<p>
+<span class="mark">&#9312;</span> Load the FFI library.
+</p>
+<p>
+<span class="mark">&#9313;</span> Add a C&nbsp;declaration
+for the function. The part inside the double-brackets (in green) is
+just standard C&nbsp;syntax.
+</p>
+<p>
+<span class="mark">&#9314;</span> Call the named
+C&nbsp;function &mdash; Yes, it's that simple!
+</p>
+<p style="font-size: 8pt;">
+Actually, what goes on behind the scenes is far from simple: <span
+style="color:#4040c0;">&#9314;</span> makes use of the standard
+C&nbsp;library namespace <tt>ffi.C</tt>. Indexing this namespace with
+a symbol name (<tt>"printf"</tt>) automatically binds it to the
+standard C&nbsp;library. The result is a special kind of object which,
+when called, runs the <tt>printf</tt> function. The arguments passed
+to this function are automatically converted from Lua objects to the
+corresponding C&nbsp;types.
+</p>
+<p>
+Ok, so maybe the use of <tt>printf()</tt> wasn't such a spectacular
+example. You could have done that with <tt>io.write()</tt> and
+<tt>string.format()</tt>, too. But you get the idea ...
+</p>
+<p>
+So here's something to pop up a message box on Windows:
+</p>
+<pre class="code">
+local ffi = require("ffi")
+ffi.cdef[[
+<span style="color:#00a000;">int MessageBoxA(void *w, const char *txt, const char *cap, int type);</span>
+]]
+ffi.C.MessageBoxA(nil, "Hello world!", "Test", 0)
+</pre>
+<p>
+Bing! Again, that was far too easy, no?
+</p>
+<p style="font-size: 8pt;">
+Compare this with the effort required to bind that function using the
+classic Lua/C API: create an extra C&nbsp;file, add a C&nbsp;function
+that retrieves and checks the argument types passed from Lua and calls
+the actual C&nbsp;function, add a list of module functions and their
+names, add a <tt>luaopen_*</tt> function and register all module
+functions, compile and link it into a shared library (DLL), move it to
+the proper path, add Lua code that loads the module aaaand ... finally
+call the binding function. Phew!
+</p>
+
+<h2 id="cdata">Motivating Example: Using C Data Structures</h2>
+<p>
+The FFI library allows you to create and access C&nbsp;data
+structures. Of course the main use for this is for interfacing with
+C&nbsp;functions. But they can be used stand-alone, too.
+</p>
+<p>
+Lua is built upon high-level data types. They are flexible, extensible
+and dynamic. That's why we all love Lua so much. Alas, this can be
+inefficient for certain tasks, where you'd really want a low-level
+data type. E.g. a large array of a fixed structure needs to be
+implemented with a big table holding lots of tiny tables. This imposes
+both a substantial memory overhead as well as a performance overhead.
+</p>
+<p>
+Here's a sketch of a library that operates on color images plus a
+simple benchmark. First, the plain Lua version:
+</p>
+<pre class="code">
+local floor = math.floor
+
+local function image_ramp_green(n)
+  local img = {}
+  local f = 255/(n-1)
+  for i=1,n do
+    img[i] = { red = 0, green = floor((i-1)*f), blue = 0, alpha = 255 }
+  end
+  return img
+end
+
+local function image_to_grey(img, n)
+  for i=1,n do
+    local y = floor(0.3*img[i].red + 0.59*img[i].green + 0.11*img[i].blue)
+    img[i].red = y; img[i].green = y; img[i].blue = y
+  end
+end
+
+local N = 400*400
+local img = image_ramp_green(N)
+for i=1,1000 do
+  image_to_grey(img, N)
+end
+</pre>
+<p>
+This creates a table with 160.000 pixels, each of which is a table
+holding four number values in the range of 0-255. First an image with
+a green ramp is created (1D for simplicity), then the image is
+converted to greyscale 1000 times. Yes, that's silly, but I was in
+need of a simple example ...
+</p>
+<p>
+And here's the FFI version. The modified parts have been marked in
+bold:
+</p>
+<pre class="code mark">
+<span class="codemark">&#9312;
+
+
+
+
+
+&#9313;
+
+&#9314;
+&#9315;
+
+
+
+
+
+
+&#9314;
+&#9316;</span><b>local ffi = require("ffi")
+ffi.cdef[[
+</b><span style="color:#00a000;">typedef struct { uint8_t red, green, blue, alpha; } rgba_pixel;</span><b>
+]]</b>
+
+local function image_ramp_green(n)
+  <b>local img = ffi.new("rgba_pixel[?]", n)</b>
+  local f = 255/(n-1)
+  for i=<b>0,n-1</b> do
+    <b>img[i].green = i*f</b>
+    <b>img[i].alpha = 255</b>
+  end
+  return img
+end
+
+local function image_to_grey(img, n)
+  for i=<b>0,n-1</b> do
+    local y = <b>0.3*img[i].red + 0.59*img[i].green + 0.11*img[i].blue</b>
+    img[i].red = y; img[i].green = y; img[i].blue = y
+  end
+end
+
+local N = 400*400
+local img = image_ramp_green(N)
+for i=1,1000 do
+  image_to_grey(img, N)
+end
+</pre>
+<p>
+Ok, so that wasn't too difficult:
+</p>
+<p>
+<span class="mark">&#9312;</span> First, load the FFI
+library and declare the low-level data type. Here we choose a
+<tt>struct</tt> which holds four byte fields, one for each component
+of a 4x8&nbsp;bit RGBA pixel.
+</p>
+<p>
+<span class="mark">&#9313;</span> Creating the data
+structure with <tt>ffi.new()</tt> is straightforward &mdash; the
+<tt>'?'</tt> is a placeholder for the number of elements of a
+variable-length array.
+</p>
+<p>
+<span class="mark">&#9314;</span> C&nbsp;arrays are
+zero-based, so the indexes have to run from <tt>0</tt> to
+<tt>n-1</tt>. One might want to allocate one more element instead to
+simplify converting legacy code.
+</p>
+<p>
+<span class="mark">&#9315;</span> Since <tt>ffi.new()</tt>
+zero-fills the array by default, we only need to set the green and the
+alpha fields.
+</p>
+<p>
+<span class="mark">&#9316;</span> The calls to
+<tt>math.floor()</tt> can be omitted here, because floating-point
+numbers are already truncated towards zero when converting them to an
+integer. This happens implicitly when the number is stored in the
+fields of each pixel.
+</p>
+<p>
+Now let's have a look at the impact of the changes: first, memory
+consumption for the image is down from 22&nbsp;Megabytes to
+640&nbsp;Kilobytes (400*400*4 bytes). That's a factor of 35x less! So,
+yes, tables do have a noticeable overhead. BTW: The original program
+would consume 40&nbsp;Megabytes in plain Lua (on x64).
+</p>
+<p>
+Next, performance: the pure Lua version runs in 9.57 seconds (52.9
+seconds with the Lua interpreter) and the FFI version runs in 0.48
+seconds on my machine (YMMV). That's a factor of 20x faster (110x
+faster than the Lua interpreter).
+</p>
+<p style="font-size: 8pt;">
+The avid reader may notice that converting the pure Lua version over
+to use array indexes for the colors (<tt>[1]</tt> instead of
+<tt>.red</tt>, <tt>[2]</tt> instead of <tt>.green</tt> etc.) ought to
+be more compact and faster. This is certainly true (by a factor of
+~1.7x). Switching to a struct-of-arrays would help, too.
+</p>
+<p style="font-size: 8pt;">
+However the resulting code would be less idiomatic and rather
+error-prone. And it still doesn't get even close to the performance of
+the FFI version of the code. Also, high-level data structures cannot
+be easily passed to other C&nbsp;functions, especially I/O functions,
+without undue conversion penalties.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>ffi.* API Functions</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
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+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1><tt>ffi.*</tt> API Functions</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
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+</li><li>
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+<a href="ext_ffi.html">FFI Library</a>
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+</li><li>
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+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
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+</li></ul>
+</div>
+<div id="main">
+<p>
+This page describes the API functions provided by the FFI library in
+detail. It's recommended to read through the
+<a href="ext_ffi.html">introduction</a> and the
+<a href="ext_ffi_tutorial.html">FFI tutorial</a> first.
+</p>
+
+<h2 id="glossary">Glossary</h2>
+<ul>
+<li><b>cdecl</b> &mdash; An abstract C&nbsp;type declaration (a Lua
+string).</li>
+<li><b>ctype</b> &mdash; A C&nbsp;type object. This is a special kind of
+<b>cdata</b> returned by <tt>ffi.typeof()</tt>. It serves as a
+<b>cdata</b> <a href="#ffi_new">constructor</a> when called.</li>
+<li><b>cdata</b> &mdash; A C&nbsp;data object. It holds a value of the
+corresponding <b>ctype</b>.</li>
+<li><b>ct</b> &mdash; A C&nbsp;type specification which can be used for
+most of the API functions. Either a <b>cdecl</b>, a <b>ctype</b> or a
+<b>cdata</b> serving as a template type.</li>
+<li><b>cb</b> &mdash; A callback object. This is a C&nbsp;data object
+holding a special function pointer. Calling this function from
+C&nbsp;code runs an associated Lua function.</li>
+<li><b>VLA</b> &mdash; A variable-length array is declared with a
+<tt>?</tt> instead of the number of elements, e.g. <tt>"int[?]"</tt>.
+The number of elements (<tt>nelem</tt>) must be given when it's
+<a href="#ffi_new">created</a>.</li>
+<li><b>VLS</b> &mdash; A variable-length struct is a <tt>struct</tt> C
+type where the last element is a <b>VLA</b>. The same rules for
+declaration and creation apply.</li>
+</ul>
+
+<h2 id="decl">Declaring and Accessing External Symbols</h2>
+<p>
+External symbols must be declared first and can then be accessed by
+indexing a <a href="ext_ffi_semantics.html#clib">C&nbsp;library
+namespace</a>, which automatically binds the symbol to a specific
+library.
+</p>
+
+<h3 id="ffi_cdef"><tt>ffi.cdef(def)</tt></h3>
+<p>
+Adds multiple C&nbsp;declarations for types or external symbols (named
+variables or functions). <tt>def</tt> must be a Lua string. It's
+recommended to use the syntactic sugar for string arguments as
+follows:
+</p>
+<pre class="code">
+ffi.cdef[[
+<span style="color:#00a000;">typedef struct foo { int a, b; } foo_t;  // Declare a struct and typedef.
+int dofoo(foo_t *f, int n);  /* Declare an external C function. */</span>
+]]
+</pre>
+<p>
+The contents of the string (the part in green above) must be a
+sequence of
+<a href="ext_ffi_semantics.html#clang">C&nbsp;declarations</a>,
+separated by semicolons. The trailing semicolon for a single
+declaration may be omitted.
+</p>
+<p>
+Please note that external symbols are only <em>declared</em>, but they
+are <em>not bound</em> to any specific address, yet. Binding is
+achieved with C&nbsp;library namespaces (see below).
+</p>
+<p style="color: #c00000;">
+C&nbsp;declarations are not passed through a C&nbsp;pre-processor,
+yet. No pre-processor tokens are allowed, except for
+<tt>#pragma&nbsp;pack</tt>. Replace <tt>#define</tt> in existing
+C&nbsp;header files with <tt>enum</tt>, <tt>static&nbsp;const</tt>
+or <tt>typedef</tt> and/or pass the files through an external
+C&nbsp;pre-processor (once). Be careful not to include unneeded or
+redundant declarations from unrelated header files.
+</p>
+
+<h3 id="ffi_C"><tt>ffi.C</tt></h3>
+<p>
+This is the default C&nbsp;library namespace &mdash; note the
+uppercase <tt>'C'</tt>. It binds to the default set of symbols or
+libraries on the target system. These are more or less the same as a
+C&nbsp;compiler would offer by default, without specifying extra link
+libraries.
+</p>
+<p>
+On POSIX systems, this binds to symbols in the default or global
+namespace. This includes all exported symbols from the executable and
+any libraries loaded into the global namespace. This includes at least
+<tt>libc</tt>, <tt>libm</tt>, <tt>libdl</tt> (on Linux),
+<tt>libgcc</tt> (if compiled with GCC), as well as any exported
+symbols from the Lua/C&nbsp;API provided by LuaJIT itself.
+</p>
+<p>
+On Windows systems, this binds to symbols exported from the
+<tt>*.exe</tt>, the <tt>lua51.dll</tt> (i.e. the Lua/C&nbsp;API
+provided by LuaJIT itself), the C&nbsp;runtime library LuaJIT was linked
+with (<tt>msvcrt*.dll</tt>), <tt>kernel32.dll</tt>,
+<tt>user32.dll</tt> and <tt>gdi32.dll</tt>.
+</p>
+
+<h3 id="ffi_load"><tt>clib = ffi.load(name [,global])</tt></h3>
+<p>
+This loads the dynamic library given by <tt>name</tt> and returns
+a new C&nbsp;library namespace which binds to its symbols. On POSIX
+systems, if <tt>global</tt> is <tt>true</tt>, the library symbols are
+loaded into the global namespace, too.
+</p>
+<p>
+If <tt>name</tt> is a path, the library is loaded from this path.
+Otherwise <tt>name</tt> is canonicalized in a system-dependent way and
+searched in the default search path for dynamic libraries:
+</p>
+<p>
+On POSIX systems, if the name contains no dot, the extension
+<tt>.so</tt> is appended. Also, the <tt>lib</tt> prefix is prepended
+if necessary. So <tt>ffi.load("z")</tt> looks for <tt>"libz.so"</tt>
+in the default shared library search path.
+</p>
+<p>
+On Windows systems, if the name contains no dot, the extension
+<tt>.dll</tt> is appended. So <tt>ffi.load("ws2_32")</tt> looks for
+<tt>"ws2_32.dll"</tt> in the default DLL search path.
+</p>
+
+<h2 id="create">Creating cdata Objects</h2>
+<p>
+The following API functions create cdata objects (<tt>type()</tt>
+returns <tt>"cdata"</tt>). All created cdata objects are
+<a href="ext_ffi_semantics.html#gc">garbage collected</a>.
+</p>
+
+<h3 id="ffi_new"><tt>cdata = ffi.new(ct [,nelem] [,init...])<br>
+cdata = <em>ctype</em>([nelem,] [init...])</tt></h3>
+<p>
+Creates a cdata object for the given <tt>ct</tt>. VLA/VLS types
+require the <tt>nelem</tt> argument. The second syntax uses a ctype as
+a constructor and is otherwise fully equivalent.
+</p>
+<p>
+The cdata object is initialized according to the
+<a href="ext_ffi_semantics.html#init">rules for initializers</a>,
+using the optional <tt>init</tt> arguments. Excess initializers cause
+an error.
+</p>
+<p>
+Performance notice: if you want to create many objects of one kind,
+parse the cdecl only once and get its ctype with
+<tt>ffi.typeof()</tt>. Then use the ctype as a constructor repeatedly.
+</p>
+<p style="font-size: 8pt;">
+Please note that an anonymous <tt>struct</tt> declaration implicitly
+creates a new and distinguished ctype every time you use it for
+<tt>ffi.new()</tt>. This is probably <b>not</b> what you want,
+especially if you create more than one cdata object. Different anonymous
+<tt>structs</tt> are not considered assignment-compatible by the
+C&nbsp;standard, even though they may have the same fields! Also, they
+are considered different types by the JIT-compiler, which may cause an
+excessive number of traces. It's strongly suggested to either declare
+a named <tt>struct</tt> or <tt>typedef</tt> with <tt>ffi.cdef()</tt>
+or to create a single ctype object for an anonymous <tt>struct</tt>
+with <tt>ffi.typeof()</tt>.
+</p>
+
+<h3 id="ffi_typeof"><tt>ctype = ffi.typeof(ct)</tt></h3>
+<p>
+Creates a ctype object for the given <tt>ct</tt>.
+</p>
+<p>
+This function is especially useful to parse a cdecl only once and then
+use the resulting ctype object as a <a href="#ffi_new">constructor</a>.
+</p>
+
+<h3 id="ffi_cast"><tt>cdata = ffi.cast(ct, init)</tt></h3>
+<p>
+Creates a scalar cdata object for the given <tt>ct</tt>. The cdata
+object is initialized with <tt>init</tt> using the "cast" variant of
+the <a href="ext_ffi_semantics.html#convert">C&nbsp;type conversion
+rules</a>.
+</p>
+<p>
+This functions is mainly useful to override the pointer compatibility
+checks or to convert pointers to addresses or vice versa.
+</p>
+
+<h3 id="ffi_metatype"><tt>ctype = ffi.metatype(ct, metatable)</tt></h3>
+<p>
+Creates a ctype object for the given <tt>ct</tt> and associates it with
+a metatable. Only <tt>struct</tt>/<tt>union</tt> types, complex numbers
+and vectors are allowed. Other types may be wrapped in a
+<tt>struct</tt>, if needed.
+</p>
+<p>
+The association with a metatable is permanent and cannot be changed
+afterwards. Neither the contents of the <tt>metatable</tt> nor the
+contents of an <tt>__index</tt> table (if any) may be modified
+afterwards. The associated metatable automatically applies to all uses
+of this type, no matter how the objects are created or where they
+originate from. Note that pre-defined operations on types have
+precedence (e.g. declared field names cannot be overriden).
+</p>
+<p>
+All standard Lua metamethods are implemented. These are called directly,
+without shortcuts and on any mix of types. For binary operations, the
+left operand is checked first for a valid ctype metamethod. The
+<tt>__gc</tt> metamethod only applies to <tt>struct</tt>/<tt>union</tt>
+types and performs an implicit <a href="#ffi_gc"><tt>ffi.gc()</tt></a>
+call during creation of an instance.
+</p>
+
+<h3 id="ffi_gc"><tt>cdata = ffi.gc(cdata, finalizer)</tt></h3>
+<p>
+Associates a finalizer with a pointer or aggregate cdata object. The
+cdata object is returned unchanged.
+</p>
+<p>
+This function allows safe integration of unmanaged resources into the
+automatic memory management of the LuaJIT garbage collector. Typical
+usage:
+</p>
+<pre class="code">
+local p = ffi.gc(ffi.C.malloc(n), ffi.C.free)
+...
+p = nil -- Last reference to p is gone.
+-- GC will eventually run finalizer: ffi.C.free(p)
+</pre>
+<p>
+A cdata finalizer works like the <tt>__gc</tt> metamethod for userdata
+objects: when the last reference to a cdata object is gone, the
+associated finalizer is called with the cdata object as an argument. The
+finalizer can be a Lua function or a cdata function or cdata function
+pointer. An existing finalizer can be removed by setting a <tt>nil</tt>
+finalizer, e.g. right before explicitly deleting a resource:
+</p>
+<pre class="code">
+ffi.C.free(ffi.gc(p, nil)) -- Manually free the memory.
+</pre>
+
+<h2 id="info">C&nbsp;Type Information</h2>
+<p>
+The following API functions return information about C&nbsp;types.
+They are most useful for inspecting cdata objects.
+</p>
+
+<h3 id="ffi_sizeof"><tt>size = ffi.sizeof(ct [,nelem])</tt></h3>
+<p>
+Returns the size of <tt>ct</tt> in bytes. Returns <tt>nil</tt> if
+the size is not known (e.g. for <tt>"void"</tt> or function types).
+Requires <tt>nelem</tt> for VLA/VLS types, except for cdata objects.
+</p>
+
+<h3 id="ffi_alignof"><tt>align = ffi.alignof(ct)</tt></h3>
+<p>
+Returns the minimum required alignment for <tt>ct</tt> in bytes.
+</p>
+
+<h3 id="ffi_offsetof"><tt>ofs [,bpos,bsize] = ffi.offsetof(ct, field)</tt></h3>
+<p>
+Returns the offset (in bytes) of <tt>field</tt> relative to the start
+of <tt>ct</tt>, which must be a <tt>struct</tt>. Additionally returns
+the position and the field size (in bits) for bit fields.
+</p>
+
+<h3 id="ffi_istype"><tt>status = ffi.istype(ct, obj)</tt></h3>
+<p>
+Returns <tt>true</tt> if <tt>obj</tt> has the C&nbsp;type given by
+<tt>ct</tt>. Returns <tt>false</tt> otherwise.
+</p>
+<p>
+C&nbsp;type qualifiers (<tt>const</tt> etc.) are ignored. Pointers are
+checked with the standard pointer compatibility rules, but without any
+special treatment for <tt>void&nbsp;*</tt>. If <tt>ct</tt> specifies a
+<tt>struct</tt>/<tt>union</tt>, then a pointer to this type is accepted,
+too. Otherwise the types must match exactly.
+</p>
+<p>
+Note: this function accepts all kinds of Lua objects for the
+<tt>obj</tt> argument, but always returns <tt>false</tt> for non-cdata
+objects.
+</p>
+
+<h2 id="util">Utility Functions</h2>
+
+<h3 id="ffi_errno"><tt>err = ffi.errno([newerr])</tt></h3>
+<p>
+Returns the error number set by the last C&nbsp;function call which
+indicated an error condition. If the optional <tt>newerr</tt> argument
+is present, the error number is set to the new value and the previous
+value is returned.
+</p>
+<p>
+This function offers a portable and OS-independent way to get and set the
+error number. Note that only <em>some</em> C&nbsp;functions set the error
+number. And it's only significant if the function actually indicated an
+error condition (e.g. with a return value of <tt>-1</tt> or
+<tt>NULL</tt>). Otherwise, it may or may not contain any previously set
+value.
+</p>
+<p>
+You're advised to call this function only when needed and as close as
+possible after the return of the related C&nbsp;function. The
+<tt>errno</tt> value is preserved across hooks, memory allocations,
+invocations of the JIT compiler and other internal VM activity. The same
+applies to the value returned by <tt>GetLastError()</tt> on Windows, but
+you need to declare and call it yourself.
+</p>
+
+<h3 id="ffi_string"><tt>str = ffi.string(ptr [,len])</tt></h3>
+<p>
+Creates an interned Lua string from the data pointed to by
+<tt>ptr</tt>.
+</p>
+<p>
+If the optional argument <tt>len</tt> is missing, <tt>ptr</tt> is
+converted to a <tt>"char&nbsp;*"</tt> and the data is assumed to be
+zero-terminated. The length of the string is computed with
+<tt>strlen()</tt>.
+</p>
+<p>
+Otherwise <tt>ptr</tt> is converted to a <tt>"void&nbsp;*"</tt> and
+<tt>len</tt> gives the length of the data. The data may contain
+embedded zeros and need not be byte-oriented (though this may cause
+endianess issues).
+</p>
+<p>
+This function is mainly useful to convert (temporary)
+<tt>"const&nbsp;char&nbsp;*"</tt> pointers returned by
+C&nbsp;functions to Lua strings and store them or pass them to other
+functions expecting a Lua string. The Lua string is an (interned) copy
+of the data and bears no relation to the original data area anymore.
+Lua strings are 8&nbsp;bit clean and may be used to hold arbitrary,
+non-character data.
+</p>
+<p>
+Performance notice: it's faster to pass the length of the string, if
+it's known. E.g. when the length is returned by a C&nbsp;call like
+<tt>sprintf()</tt>.
+</p>
+
+<h3 id="ffi_copy"><tt>ffi.copy(dst, src, len)<br>
+ffi.copy(dst, str)</tt></h3>
+<p>
+Copies the data pointed to by <tt>src</tt> to <tt>dst</tt>.
+<tt>dst</tt> is converted to a <tt>"void&nbsp;*"</tt> and <tt>src</tt>
+is converted to a <tt>"const void&nbsp;*"</tt>.
+</p>
+<p>
+In the first syntax, <tt>len</tt> gives the number of bytes to copy.
+Caveat: if <tt>src</tt> is a Lua string, then <tt>len</tt> must not
+exceed <tt>#src+1</tt>.
+</p>
+<p>
+In the second syntax, the source of the copy must be a Lua string. All
+bytes of the string <em>plus a zero-terminator</em> are copied to
+<tt>dst</tt> (i.e. <tt>#src+1</tt> bytes).
+</p>
+<p>
+Performance notice: <tt>ffi.copy()</tt> may be used as a faster
+(inlinable) replacement for the C&nbsp;library functions
+<tt>memcpy()</tt>, <tt>strcpy()</tt> and <tt>strncpy()</tt>.
+</p>
+
+<h3 id="ffi_fill"><tt>ffi.fill(dst, len [,c])</tt></h3>
+<p>
+Fills the data pointed to by <tt>dst</tt> with <tt>len</tt> constant
+bytes, given by <tt>c</tt>. If <tt>c</tt> is omitted, the data is
+zero-filled.
+</p>
+<p>
+Performance notice: <tt>ffi.fill()</tt> may be used as a faster
+(inlinable) replacement for the C&nbsp;library function
+<tt>memset(dst,&nbsp;c,&nbsp;len)</tt>. Please note the different
+order of arguments!
+</p>
+
+<h2 id="target">Target-specific Information</h2>
+
+<h3 id="ffi_abi"><tt>status = ffi.abi(param)</tt></h3>
+<p>
+Returns <tt>true</tt> if <tt>param</tt> (a Lua string) applies for the
+target ABI (Application Binary Interface). Returns <tt>false</tt>
+otherwise. The following parameters are currently defined:
+</p>
+<table class="abitable">
+<tr class="abihead">
+<td class="abiparam">Parameter</td>
+<td class="abidesc">Description</td>
+</tr>
+<tr class="odd separate">
+<td class="abiparam">32bit</td><td class="abidesc">32 bit architecture</td></tr>
+<tr class="even">
+<td class="abiparam">64bit</td><td class="abidesc">64 bit architecture</td></tr>
+<tr class="odd separate">
+<td class="abiparam">le</td><td class="abidesc">Little-endian architecture</td></tr>
+<tr class="even">
+<td class="abiparam">be</td><td class="abidesc">Big-endian architecture</td></tr>
+<tr class="odd separate">
+<td class="abiparam">fpu</td><td class="abidesc">Target has a hardware FPU</td></tr>
+<tr class="even">
+<td class="abiparam">softfp</td><td class="abidesc">softfp calling conventions</td></tr>
+<tr class="odd">
+<td class="abiparam">hardfp</td><td class="abidesc">hardfp calling conventions</td></tr>
+<tr class="even separate">
+<td class="abiparam">eabi</td><td class="abidesc">EABI variant of the standard ABI</td></tr>
+<tr class="odd">
+<td class="abiparam">win</td><td class="abidesc">Windows variant of the standard ABI</td></tr>
+</table>
+
+<h3 id="ffi_os"><tt>ffi.os</tt></h3>
+<p>
+Contains the target OS name. Same contents as
+<a href="ext_jit.html#jit_os"><tt>jit.os</tt></a>.
+</p>
+
+<h3 id="ffi_arch"><tt>ffi.arch</tt></h3>
+<p>
+Contains the target architecture name. Same contents as
+<a href="ext_jit.html#jit_arch"><tt>jit.arch</tt></a>.
+</p>
+
+<h2 id="callback">Methods for Callbacks</h2>
+<p>
+The C&nbsp;types for <a href="ext_ffi_semantics.html#callback">callbacks</a>
+have some extra methods:
+</p>
+
+<h3 id="callback_free"><tt>cb:free()</tt></h3>
+<p>
+Free the resources associated with a callback. The associated Lua
+function is unanchored and may be garbage collected. The callback
+function pointer is no longer valid and must not be called anymore
+(it may be reused by a subsequently created callback).
+</p>
+
+<h3 id="callback_set"><tt>cb:set(func)</tt></h3>
+<p>
+Associate a new Lua function with a callback. The C&nbsp;type of the
+callback and the callback function pointer are unchanged.
+</p>
+<p>
+This method is useful to dynamically switch the receiver of callbacks
+without creating a new callback each time and registering it again (e.g.
+with a GUI library).
+</p>
+
+<h2 id="extended">Extended Standard Library Functions</h2>
+<p>
+The following standard library functions have been extended to work
+with cdata objects:
+</p>
+
+<h3 id="tonumber"><tt>n = tonumber(cdata)</tt></h3>
+<p>
+Converts a number cdata object to a <tt>double</tt> and returns it as
+a Lua number. This is particularly useful for boxed 64&nbsp;bit
+integer values. Caveat: this conversion may incur a precision loss.
+</p>
+
+<h3 id="tostring"><tt>s = tostring(cdata)</tt></h3>
+<p>
+Returns a string representation of the value of 64&nbsp;bit integers
+(<tt><b>"</b>nnn<b>LL"</b></tt> or <tt><b>"</b>nnn<b>ULL"</b></tt>) or
+complex numbers (<tt><b>"</b>re&plusmn;im<b>i"</b></tt>). Otherwise
+returns a string representation of the C&nbsp;type of a ctype object
+(<tt><b>"ctype&lt;</b>type<b>&gt;"</b></tt>) or a cdata object
+(<tt><b>"cdata&lt;</b>type<b>&gt;:&nbsp;</b>address"</tt>), unless you
+override it with a <tt>__tostring</tt> metamethod (see
+<a href="#ffi_metatype"><tt>ffi.metatype()</tt></a>).
+</p>
+
+<h3 id="pairs"><tt>iter, obj, start = pairs(cdata)<br>
+iter, obj, start = ipairs(cdata)<br></tt></h3>
+<p>
+Calls the <tt>__pairs</tt> or <tt>__ipairs</tt> metamethod of the
+corresponding ctype.
+</p>
+
+<h2 id="literals">Extensions to the Lua Parser</h2>
+<p>
+The parser for Lua source code treats numeric literals with the
+suffixes <tt>LL</tt> or <tt>ULL</tt> as signed or unsigned 64&nbsp;bit
+integers. Case doesn't matter, but uppercase is recommended for
+readability. It handles both decimal (<tt>42LL</tt>) and hexadecimal
+(<tt>0x2aLL</tt>) literals.
+</p>
+<p>
+The imaginary part of complex numbers can be specified by suffixing
+number literals with <tt>i</tt> or <tt>I</tt>, e.g. <tt>12.5i</tt>.
+Caveat: you'll need to use <tt>1i</tt> to get an imaginary part with
+the value one, since <tt>i</tt> itself still refers to a variable
+named <tt>i</tt>.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
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new file mode 100644
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@@ -0,0 +1,1245 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>FFI Semantics</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+table.convtable { line-height: 1.2; }
+tr.convhead td { font-weight: bold; }
+td.convop { font-style: italic; width: 40%; }
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>FFI Semantics</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a class="current" href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+This page describes the detailed semantics underlying the FFI library
+and its interaction with both Lua and C&nbsp;code.
+</p>
+<p>
+Given that the FFI library is designed to interface with C&nbsp;code
+and that declarations can be written in plain C&nbsp;syntax, <b>it
+closely follows the C&nbsp;language semantics</b>, wherever possible.
+Some minor concessions are needed for smoother interoperation with Lua
+language semantics.
+</p>
+<p>
+Please don't be overwhelmed by the contents of this page &mdash; this
+is a reference and you may need to consult it, if in doubt. It doesn't
+hurt to skim this page, but most of the semantics "just work" as you'd
+expect them to work. It should be straightforward to write
+applications using the LuaJIT FFI for developers with a C or C++
+background.
+</p>
+
+<h2 id="clang">C Language Support</h2>
+<p>
+The FFI library has a built-in C&nbsp;parser with a minimal memory
+footprint. It's used by the <a href="ext_ffi_api.html">ffi.* library
+functions</a> to declare C&nbsp;types or external symbols.
+</p>
+<p>
+It's only purpose is to parse C&nbsp;declarations, as found e.g. in
+C&nbsp;header files. Although it does evaluate constant expressions,
+it's <em>not</em> a C&nbsp;compiler. The body of <tt>inline</tt>
+C&nbsp;function definitions is simply ignored.
+</p>
+<p>
+Also, this is <em>not</em> a validating C&nbsp;parser. It expects and
+accepts correctly formed C&nbsp;declarations, but it may choose to
+ignore bad declarations or show rather generic error messages. If in
+doubt, please check the input against your favorite C&nbsp;compiler.
+</p>
+<p>
+The C&nbsp;parser complies to the <b>C99 language standard</b> plus
+the following extensions:
+</p>
+<ul>
+
+<li>The <tt>'\e'</tt> escape in character and string literals.</li>
+
+<li>The C99/C++ boolean type, declared with the keywords <tt>bool</tt>
+or <tt>_Bool</tt>.</li>
+
+<li>Complex numbers, declared with the keywords <tt>complex</tt> or
+<tt>_Complex</tt>.</li>
+
+<li>Two complex number types: <tt>complex</tt> (aka
+<tt>complex&nbsp;double</tt>) and <tt>complex&nbsp;float</tt>.</li>
+
+<li>Vector types, declared with the GCC <tt>mode</tt> or
+<tt>vector_size</tt> attribute.</li>
+
+<li>Unnamed ('transparent') <tt>struct</tt>/<tt>union</tt> fields
+inside a <tt>struct</tt>/<tt>union</tt>.</li>
+
+<li>Incomplete <tt>enum</tt> declarations, handled like incomplete
+<tt>struct</tt> declarations.</li>
+
+<li>Unnamed <tt>enum</tt> fields inside a
+<tt>struct</tt>/<tt>union</tt>. This is similar to a scoped C++
+<tt>enum</tt>, except that declared constants are visible in the
+global namespace, too.</li>
+
+<li>Scoped <tt>static&nbsp;const</tt> declarations inside a
+<tt>struct</tt>/<tt>union</tt> (from C++).</li>
+
+<li>Zero-length arrays (<tt>[0]</tt>), empty
+<tt>struct</tt>/<tt>union</tt>, variable-length arrays (VLA,
+<tt>[?]</tt>) and variable-length structs (VLS, with a trailing
+VLA).</li>
+
+<li>C++ reference types (<tt>int&nbsp;&amp;x</tt>).</li>
+
+<li>Alternate GCC keywords with '<tt>__</tt>', e.g.
+<tt>__const__</tt>.</li>
+
+<li>GCC <tt>__attribute__</tt> with the following attributes:
+<tt>aligned</tt>, <tt>packed</tt>, <tt>mode</tt>,
+<tt>vector_size</tt>, <tt>cdecl</tt>, <tt>fastcall</tt>,
+<tt>stdcall</tt>, <tt>thiscall</tt>.</li>
+
+<li>The GCC <tt>__extension__</tt> keyword and the GCC
+<tt>__alignof__</tt> operator.</li>
+
+<li>GCC <tt>__asm__("symname")</tt> symbol name redirection for
+function declarations.</li>
+
+<li>MSVC keywords for fixed-length types: <tt>__int8</tt>,
+<tt>__int16</tt>, <tt>__int32</tt> and <tt>__int64</tt>.</li>
+
+<li>MSVC <tt>__cdecl</tt>, <tt>__fastcall</tt>, <tt>__stdcall</tt>,
+<tt>__thiscall</tt>, <tt>__ptr32</tt>, <tt>__ptr64</tt>,
+<tt>__declspec(align(n))</tt> and <tt>#pragma&nbsp;pack</tt>.</li>
+
+<li>All other GCC/MSVC-specific attributes are ignored.</li>
+
+</ul>
+<p>
+The following C&nbsp;types are pre-defined by the C&nbsp;parser (like
+a <tt>typedef</tt>, except re-declarations will be ignored):
+</p>
+<ul>
+
+<li>Vararg handling: <tt>va_list</tt>, <tt>__builtin_va_list</tt>,
+<tt>__gnuc_va_list</tt>.</li>
+
+<li>From <tt>&lt;stddef.h&gt;</tt>: <tt>ptrdiff_t</tt>,
+<tt>size_t</tt>, <tt>wchar_t</tt>.</li>
+
+<li>From <tt>&lt;stdint.h&gt;</tt>: <tt>int8_t</tt>, <tt>int16_t</tt>,
+<tt>int32_t</tt>, <tt>int64_t</tt>, <tt>uint8_t</tt>,
+<tt>uint16_t</tt>, <tt>uint32_t</tt>, <tt>uint64_t</tt>,
+<tt>intptr_t</tt>, <tt>uintptr_t</tt>.</li>
+
+</ul>
+<p>
+You're encouraged to use these types in preference to
+compiler-specific extensions or target-dependent standard types.
+E.g. <tt>char</tt> differs in signedness and <tt>long</tt> differs in
+size, depending on the target architecture and platform ABI.
+</p>
+<p>
+The following C&nbsp;features are <b>not</b> supported:
+</p>
+<ul>
+
+<li>A declaration must always have a type specifier; it doesn't
+default to an <tt>int</tt> type.</li>
+
+<li>Old-style empty function declarations (K&amp;R) are not allowed.
+All C&nbsp;functions must have a proper prototype declaration. A
+function declared without parameters (<tt>int&nbsp;foo();</tt>) is
+treated as a function taking zero arguments, like in C++.</li>
+
+<li>The <tt>long double</tt> C&nbsp;type is parsed correctly, but
+there's no support for the related conversions, accesses or arithmetic
+operations.</li>
+
+<li>Wide character strings and character literals are not
+supported.</li>
+
+<li><a href="#status">See below</a> for features that are currently
+not implemented.</li>
+
+</ul>
+
+<h2 id="convert">C Type Conversion Rules</h2>
+
+<h3 id="convert_tolua">Conversions from C&nbsp;types to Lua objects</h3>
+<p>
+These conversion rules apply for <em>read accesses</em> to
+C&nbsp;types: indexing pointers, arrays or
+<tt>struct</tt>/<tt>union</tt> types; reading external variables or
+constant values; retrieving return values from C&nbsp;calls:
+</p>
+<table class="convtable">
+<tr class="convhead">
+<td class="convin">Input</td>
+<td class="convop">Conversion</td>
+<td class="convout">Output</td>
+</tr>
+<tr class="odd separate">
+<td class="convin"><tt>int8_t</tt>, <tt>int16_t</tt></td><td class="convop">&rarr;<sup>sign-ext</sup> <tt>int32_t</tt> &rarr; <tt>double</tt></td><td class="convout">number</td></tr>
+<tr class="even">
+<td class="convin"><tt>uint8_t</tt>, <tt>uint16_t</tt></td><td class="convop">&rarr;<sup>zero-ext</sup> <tt>int32_t</tt> &rarr; <tt>double</tt></td><td class="convout">number</td></tr>
+<tr class="odd">
+<td class="convin"><tt>int32_t</tt>, <tt>uint32_t</tt></td><td class="convop">&rarr; <tt>double</tt></td><td class="convout">number</td></tr>
+<tr class="even">
+<td class="convin"><tt>int64_t</tt>, <tt>uint64_t</tt></td><td class="convop">boxed value</td><td class="convout">64 bit int cdata</td></tr>
+<tr class="odd separate">
+<td class="convin"><tt>double</tt>, <tt>float</tt></td><td class="convop">&rarr; <tt>double</tt></td><td class="convout">number</td></tr>
+<tr class="even separate">
+<td class="convin"><tt>bool</tt></td><td class="convop">0 &rarr; <tt>false</tt>, otherwise <tt>true</tt></td><td class="convout">boolean</td></tr>
+<tr class="odd separate">
+<td class="convin"><tt>enum</tt></td><td class="convop">boxed value</td><td class="convout">enum cdata</td></tr>
+<tr class="even">
+<td class="convin">Complex number</td><td class="convop">boxed value</td><td class="convout">complex cdata</td></tr>
+<tr class="odd">
+<td class="convin">Vector</td><td class="convop">boxed value</td><td class="convout">vector cdata</td></tr>
+<tr class="even">
+<td class="convin">Pointer</td><td class="convop">boxed value</td><td class="convout">pointer cdata</td></tr>
+<tr class="odd separate">
+<td class="convin">Array</td><td class="convop">boxed reference</td><td class="convout">reference cdata</td></tr>
+<tr class="even">
+<td class="convin"><tt>struct</tt>/<tt>union</tt></td><td class="convop">boxed reference</td><td class="convout">reference cdata</td></tr>
+</table>
+<p>
+Bitfields are treated like their underlying type.
+</p>
+<p>
+Reference types are dereferenced <em>before</em> a conversion can take
+place &mdash; the conversion is applied to the C&nbsp;type pointed to
+by the reference.
+</p>
+
+<h3 id="convert_fromlua">Conversions from Lua objects to C&nbsp;types</h3>
+<p>
+These conversion rules apply for <em>write accesses</em> to
+C&nbsp;types: indexing pointers, arrays or
+<tt>struct</tt>/<tt>union</tt> types; initializing cdata objects;
+casts to C&nbsp;types; writing to external variables; passing
+arguments to C&nbsp;calls:
+</p>
+<table class="convtable">
+<tr class="convhead">
+<td class="convin">Input</td>
+<td class="convop">Conversion</td>
+<td class="convout">Output</td>
+</tr>
+<tr class="odd separate">
+<td class="convin">number</td><td class="convop">&rarr;</td><td class="convout"><tt>double</tt></td></tr>
+<tr class="even">
+<td class="convin">boolean</td><td class="convop"><tt>false</tt> &rarr; 0, <tt>true</tt> &rarr; 1</td><td class="convout"><tt>bool</tt></td></tr>
+<tr class="odd separate">
+<td class="convin">nil</td><td class="convop"><tt>NULL</tt> &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="even">
+<td class="convin">lightuserdata</td><td class="convop">lightuserdata address &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="odd">
+<td class="convin">userdata</td><td class="convop">userdata payload &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="even">
+<td class="convin">io.* file</td><td class="convop">get FILE * handle &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="odd separate">
+<td class="convin">string</td><td class="convop">match against <tt>enum</tt> constant</td><td class="convout"><tt>enum</tt></td></tr>
+<tr class="even">
+<td class="convin">string</td><td class="convop">copy string data + zero-byte</td><td class="convout"><tt>int8_t[]</tt>, <tt>uint8_t[]</tt></td></tr>
+<tr class="odd">
+<td class="convin">string</td><td class="convop">string data &rarr;</td><td class="convout"><tt>const char[]</tt></td></tr>
+<tr class="even separate">
+<td class="convin">function</td><td class="convop"><a href="#callback">create callback</a> &rarr;</td><td class="convout">C function type</td></tr>
+<tr class="odd separate">
+<td class="convin">table</td><td class="convop"><a href="#init_table">table initializer</a></td><td class="convout">Array</td></tr>
+<tr class="even">
+<td class="convin">table</td><td class="convop"><a href="#init_table">table initializer</a></td><td class="convout"><tt>struct</tt>/<tt>union</tt></td></tr>
+<tr class="odd separate">
+<td class="convin">cdata</td><td class="convop">cdata payload &rarr;</td><td class="convout">C type</td></tr>
+</table>
+<p>
+If the result type of this conversion doesn't match the
+C&nbsp;type of the destination, the
+<a href="#convert_between">conversion rules between C&nbsp;types</a>
+are applied.
+</p>
+<p>
+Reference types are immutable after initialization ("no re-seating of
+references"). For initialization purposes or when passing values to
+reference parameters, they are treated like pointers. Note that unlike
+in C++, there's no way to implement automatic reference generation of
+variables under the Lua language semantics. If you want to call a
+function with a reference parameter, you need to explicitly pass a
+one-element array.
+</p>
+
+<h3 id="convert_between">Conversions between C&nbsp;types</h3>
+<p>
+These conversion rules are more or less the same as the standard
+C&nbsp;conversion rules. Some rules only apply to casts, or require
+pointer or type compatibility:
+</p>
+<table class="convtable">
+<tr class="convhead">
+<td class="convin">Input</td>
+<td class="convop">Conversion</td>
+<td class="convout">Output</td>
+</tr>
+<tr class="odd separate">
+<td class="convin">Signed integer</td><td class="convop">&rarr;<sup>narrow or sign-extend</sup></td><td class="convout">Integer</td></tr>
+<tr class="even">
+<td class="convin">Unsigned integer</td><td class="convop">&rarr;<sup>narrow or zero-extend</sup></td><td class="convout">Integer</td></tr>
+<tr class="odd">
+<td class="convin">Integer</td><td class="convop">&rarr;<sup>round</sup></td><td class="convout"><tt>double</tt>, <tt>float</tt></td></tr>
+<tr class="even">
+<td class="convin"><tt>double</tt>, <tt>float</tt></td><td class="convop">&rarr;<sup>trunc</sup> <tt>int32_t</tt> &rarr;<sup>narrow</sup></td><td class="convout"><tt>(u)int8_t</tt>, <tt>(u)int16_t</tt></td></tr>
+<tr class="odd">
+<td class="convin"><tt>double</tt>, <tt>float</tt></td><td class="convop">&rarr;<sup>trunc</sup></td><td class="convout"><tt>(u)int32_t</tt>, <tt>(u)int64_t</tt></td></tr>
+<tr class="even">
+<td class="convin"><tt>double</tt>, <tt>float</tt></td><td class="convop">&rarr;<sup>round</sup></td><td class="convout"><tt>float</tt>, <tt>double</tt></td></tr>
+<tr class="odd separate">
+<td class="convin">Number</td><td class="convop">n == 0 &rarr; 0, otherwise 1</td><td class="convout"><tt>bool</tt></td></tr>
+<tr class="even">
+<td class="convin"><tt>bool</tt></td><td class="convop"><tt>false</tt> &rarr; 0, <tt>true</tt> &rarr; 1</td><td class="convout">Number</td></tr>
+<tr class="odd separate">
+<td class="convin">Complex number</td><td class="convop">convert real part</td><td class="convout">Number</td></tr>
+<tr class="even">
+<td class="convin">Number</td><td class="convop">convert real part, imag = 0</td><td class="convout">Complex number</td></tr>
+<tr class="odd">
+<td class="convin">Complex number</td><td class="convop">convert real and imag part</td><td class="convout">Complex number</td></tr>
+<tr class="even separate">
+<td class="convin">Number</td><td class="convop">convert scalar and replicate</td><td class="convout">Vector</td></tr>
+<tr class="odd">
+<td class="convin">Vector</td><td class="convop">copy (same size)</td><td class="convout">Vector</td></tr>
+<tr class="even separate">
+<td class="convin"><tt>struct</tt>/<tt>union</tt></td><td class="convop">take base address (compat)</td><td class="convout">Pointer</td></tr>
+<tr class="odd">
+<td class="convin">Array</td><td class="convop">take base address (compat)</td><td class="convout">Pointer</td></tr>
+<tr class="even">
+<td class="convin">Function</td><td class="convop">take function address</td><td class="convout">Function pointer</td></tr>
+<tr class="odd separate">
+<td class="convin">Number</td><td class="convop">convert via <tt>uintptr_t</tt> (cast)</td><td class="convout">Pointer</td></tr>
+<tr class="even">
+<td class="convin">Pointer</td><td class="convop">convert address (compat/cast)</td><td class="convout">Pointer</td></tr>
+<tr class="odd">
+<td class="convin">Pointer</td><td class="convop">convert address (cast)</td><td class="convout">Integer</td></tr>
+<tr class="even">
+<td class="convin">Array</td><td class="convop">convert base address (cast)</td><td class="convout">Integer</td></tr>
+<tr class="odd separate">
+<td class="convin">Array</td><td class="convop">copy (compat)</td><td class="convout">Array</td></tr>
+<tr class="even">
+<td class="convin"><tt>struct</tt>/<tt>union</tt></td><td class="convop">copy (identical type)</td><td class="convout"><tt>struct</tt>/<tt>union</tt></td></tr>
+</table>
+<p>
+Bitfields or <tt>enum</tt> types are treated like their underlying
+type.
+</p>
+<p>
+Conversions not listed above will raise an error. E.g. it's not
+possible to convert a pointer to a complex number or vice versa.
+</p>
+
+<h3 id="convert_vararg">Conversions for vararg C&nbsp;function arguments</h3>
+<p>
+The following default conversion rules apply when passing Lua objects
+to the variable argument part of vararg C&nbsp;functions:
+</p>
+<table class="convtable">
+<tr class="convhead">
+<td class="convin">Input</td>
+<td class="convop">Conversion</td>
+<td class="convout">Output</td>
+</tr>
+<tr class="odd separate">
+<td class="convin">number</td><td class="convop">&rarr;</td><td class="convout"><tt>double</tt></td></tr>
+<tr class="even">
+<td class="convin">boolean</td><td class="convop"><tt>false</tt> &rarr; 0, <tt>true</tt> &rarr; 1</td><td class="convout"><tt>bool</tt></td></tr>
+<tr class="odd separate">
+<td class="convin">nil</td><td class="convop"><tt>NULL</tt> &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="even">
+<td class="convin">userdata</td><td class="convop">userdata payload &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="odd">
+<td class="convin">lightuserdata</td><td class="convop">lightuserdata address &rarr;</td><td class="convout"><tt>(void *)</tt></td></tr>
+<tr class="even separate">
+<td class="convin">string</td><td class="convop">string data &rarr;</td><td class="convout"><tt>const char *</tt></td></tr>
+<tr class="odd separate">
+<td class="convin"><tt>float</tt> cdata</td><td class="convop">&rarr;</td><td class="convout"><tt>double</tt></td></tr>
+<tr class="even">
+<td class="convin">Array cdata</td><td class="convop">take base address</td><td class="convout">Element pointer</td></tr>
+<tr class="odd">
+<td class="convin"><tt>struct</tt>/<tt>union</tt> cdata</td><td class="convop">take base address</td><td class="convout"><tt>struct</tt>/<tt>union</tt> pointer</td></tr>
+<tr class="even">
+<td class="convin">Function cdata</td><td class="convop">take function address</td><td class="convout">Function pointer</td></tr>
+<tr class="odd">
+<td class="convin">Any other cdata</td><td class="convop">no conversion</td><td class="convout">C type</td></tr>
+</table>
+<p>
+To pass a Lua object, other than a cdata object, as a specific type,
+you need to override the conversion rules: create a temporary cdata
+object with a constructor or a cast and initialize it with the value
+to pass:
+</p>
+<p>
+Assuming <tt>x</tt> is a Lua number, here's how to pass it as an
+integer to a vararg function:
+</p>
+<pre class="code">
+ffi.cdef[[
+int printf(const char *fmt, ...);
+]]
+ffi.C.printf("integer value: %d\n", ffi.new("int", x))
+</pre>
+<p>
+If you don't do this, the default Lua number &rarr; <tt>double</tt>
+conversion rule applies. A vararg C&nbsp;function expecting an integer
+will see a garbled or uninitialized value.
+</p>
+
+<h2 id="init">Initializers</h2>
+<p>
+Creating a cdata object with
+<a href="ext_ffi_api.html#ffi_new"><tt>ffi.new()</tt></a> or the
+equivalent constructor syntax always initializes its contents, too.
+Different rules apply, depending on the number of optional
+initializers and the C&nbsp;types involved:
+</p>
+<ul>
+<li>If no initializers are given, the object is filled with zero bytes.</li>
+
+<li>Scalar types (numbers and pointers) accept a single initializer.
+The Lua object is <a href="#convert_fromlua">converted to the scalar
+C&nbsp;type</a>.</li>
+
+<li>Valarrays (complex numbers and vectors) are treated like scalars
+when a single initializer is given. Otherwise they are treated like
+regular arrays.</li>
+
+<li>Aggregate types (arrays and structs) accept either a single cdata
+initializer of the same type (copy constructor), a single
+<a href="#init_table">table initializer</a>, or a flat list of
+initializers.</li>
+
+<li>The elements of an array are initialized, starting at index zero.
+If a single initializer is given for an array, it's repeated for all
+remaining elements. This doesn't happen if two or more initializers
+are given: all remaining uninitialized elements are filled with zero
+bytes.</li>
+
+<li>Byte arrays may also be initialized with a Lua string. This copies
+the whole string plus a terminating zero-byte. The copy stops early only
+if the array has a known, fixed size.</li>
+
+<li>The fields of a <tt>struct</tt> are initialized in the order of
+their declaration. Uninitialized fields are filled with zero
+bytes.</li>
+
+<li>Only the first field of a <tt>union</tt> can be initialized with a
+flat initializer.</li>
+
+<li>Elements or fields which are aggregates themselves are initialized
+with a <em>single</em> initializer, but this may be a table
+initializer or a compatible aggregate.</li>
+
+<li>Excess initializers cause an error.</li>
+
+</ul>
+
+<h2 id="init_table">Table Initializers</h2>
+<p>
+The following rules apply if a Lua table is used to initialize an
+Array or a <tt>struct</tt>/<tt>union</tt>:
+</p>
+<ul>
+
+<li>If the table index <tt>[0]</tt> is non-<tt>nil</tt>, then the
+table is assumed to be zero-based. Otherwise it's assumed to be
+one-based.</li>
+
+<li>Array elements, starting at index zero, are initialized one-by-one
+with the consecutive table elements, starting at either index
+<tt>[0]</tt> or <tt>[1]</tt>. This process stops at the first
+<tt>nil</tt> table element.</li>
+
+<li>If exactly one array element was initialized, it's repeated for
+all the remaining elements. Otherwise all remaining uninitialized
+elements are filled with zero bytes.</li>
+
+<li>The above logic only applies to arrays with a known fixed size.
+A VLA is only initialized with the element(s) given in the table.
+Depending on the use case, you may need to explicitly add a
+<tt>NULL</tt> or <tt>0</tt> terminator to a VLA.</li>
+
+<li>A <tt>struct</tt>/<tt>union</tt> can be initialized in the
+order of the declaration of its fields. Each field is initialized with
+consecutive table elements, starting at either index <tt>[0]</tt>
+or <tt>[1]</tt>. This process stops at the first <tt>nil</tt> table
+element.</li>
+
+<li>Otherwise, if neither index <tt>[0]</tt> nor <tt>[1]</tt> is present,
+a <tt>struct</tt>/<tt>union</tt> is initialized by looking up each field
+name (as a string key) in the table. Each non-<tt>nil</tt> value is
+used to initialize the corresponding field.</li>
+
+<li>Uninitialized fields of a <tt>struct</tt> are filled with zero
+bytes, except for the trailing VLA of a VLS.</li>
+
+<li>Initialization of a <tt>union</tt> stops after one field has been
+initialized. If no field has been initialized, the <tt>union</tt> is
+filled with zero bytes.</li>
+
+<li>Elements or fields which are aggregates themselves are initialized
+with a <em>single</em> initializer, but this may be a nested table
+initializer (or a compatible aggregate).</li>
+
+<li>Excess initializers for an array cause an error. Excess
+initializers for a <tt>struct</tt>/<tt>union</tt> are ignored.
+Unrelated table entries are ignored, too.</li>
+
+</ul>
+<p>
+Example:
+</p>
+<pre class="code">
+local ffi = require("ffi")
+
+ffi.cdef[[
+struct foo { int a, b; };
+union bar { int i; double d; };
+struct nested { int x; struct foo y; };
+]]
+
+ffi.new("int[3]", {})            --> 0, 0, 0
+ffi.new("int[3]", {1})           --> 1, 1, 1
+ffi.new("int[3]", {1,2})         --> 1, 2, 0
+ffi.new("int[3]", {1,2,3})       --> 1, 2, 3
+ffi.new("int[3]", {[0]=1})       --> 1, 1, 1
+ffi.new("int[3]", {[0]=1,2})     --> 1, 2, 0
+ffi.new("int[3]", {[0]=1,2,3})   --> 1, 2, 3
+ffi.new("int[3]", {[0]=1,2,3,4}) --> error: too many initializers
+
+ffi.new("struct foo", {})            --> a = 0, b = 0
+ffi.new("struct foo", {1})           --> a = 1, b = 0
+ffi.new("struct foo", {1,2})         --> a = 1, b = 2
+ffi.new("struct foo", {[0]=1,2})     --> a = 1, b = 2
+ffi.new("struct foo", {b=2})         --> a = 0, b = 2
+ffi.new("struct foo", {a=1,b=2,c=3}) --> a = 1, b = 2  'c' is ignored
+
+ffi.new("union bar", {})        --> i = 0, d = 0.0
+ffi.new("union bar", {1})       --> i = 1, d = ?
+ffi.new("union bar", {[0]=1,2}) --> i = 1, d = ?    '2' is ignored
+ffi.new("union bar", {d=2})     --> i = ?, d = 2.0
+
+ffi.new("struct nested", {1,{2,3}})     --> x = 1, y.a = 2, y.b = 3
+ffi.new("struct nested", {x=1,y={2,3}}) --> x = 1, y.a = 2, y.b = 3
+</pre>
+
+<h2 id="cdata_ops">Operations on cdata Objects</h2>
+<p>
+All of the standard Lua operators can be applied to cdata objects or a
+mix of a cdata object and another Lua object. The following list shows
+the pre-defined operations.
+</p>
+<p>
+Reference types are dereferenced <em>before</em> performing each of
+the operations below &mdash; the operation is applied to the
+C&nbsp;type pointed to by the reference.
+</p>
+<p>
+The pre-defined operations are always tried first before deferring to a
+metamethod or index table (if any) for the corresponding ctype (except
+for <tt>__new</tt>). An error is raised if the metamethod lookup or
+index table lookup fails.
+</p>
+
+<h3 id="cdata_array">Indexing a cdata object</h3>
+<ul>
+
+<li><b>Indexing a pointer/array</b>: a cdata pointer/array can be
+indexed by a cdata number or a Lua number. The element address is
+computed as the base address plus the number value multiplied by the
+element size in bytes. A read access loads the element value and
+<a href="#convert_tolua">converts it to a Lua object</a>. A write
+access <a href="#convert_fromlua">converts a Lua object to the element
+type</a> and stores the converted value to the element. An error is
+raised if the element size is undefined or a write access to a
+constant element is attempted.</li>
+
+<li><b>Dereferencing a <tt>struct</tt>/<tt>union</tt> field</b>: a
+cdata <tt>struct</tt>/<tt>union</tt> or a pointer to a
+<tt>struct</tt>/<tt>union</tt> can be dereferenced by a string key,
+giving the field name. The field address is computed as the base
+address plus the relative offset of the field. A read access loads the
+field value and <a href="#convert_tolua">converts it to a Lua
+object</a>. A write access <a href="#convert_fromlua">converts a Lua
+object to the field type</a> and stores the converted value to the
+field. An error is raised if a write access to a constant
+<tt>struct</tt>/<tt>union</tt> or a constant field is attempted.
+Scoped enum constants or static constants are treated like a constant
+field.</li>
+
+<li><b>Indexing a complex number</b>: a complex number can be indexed
+either by a cdata number or a Lua number with the values 0 or 1, or by
+the strings <tt>"re"</tt> or <tt>"im"</tt>. A read access loads the
+real part (<tt>[0]</tt>, <tt>.re</tt>) or the imaginary part
+(<tt>[1]</tt>, <tt>.im</tt>) part of a complex number and
+<a href="#convert_tolua">converts it to a Lua number</a>. The
+sub-parts of a complex number are immutable &mdash; assigning to an
+index of a complex number raises an error. Accessing out-of-bound
+indexes returns unspecified results, but is guaranteed not to trigger
+memory access violations.</li>
+
+<li><b>Indexing a vector</b>: a vector is treated like an array for
+indexing purposes, except the vector elements are immutable &mdash;
+assigning to an index of a vector raises an error.</li>
+
+</ul>
+<p>
+A ctype object can be indexed with a string key, too. The only
+pre-defined operation is reading scoped constants of
+<tt>struct</tt>/<tt>union</tt> types. All other accesses defer
+to the corresponding metamethods or index tables (if any).
+</p>
+<p>
+Note: since there's (deliberately) no address-of operator, a cdata
+object holding a value type is effectively immutable after
+initialization. The JIT compiler benefits from this fact when applying
+certain optimizations.
+</p>
+<p>
+As a consequence, the <em>elements</em> of complex numbers and
+vectors are immutable. But the elements of an aggregate holding these
+types <em>may</em> be modified of course. I.e. you cannot assign to
+<tt>foo.c.im</tt>, but you can assign a (newly created) complex number
+to <tt>foo.c</tt>.
+</p>
+<p>
+The JIT compiler implements strict aliasing rules: accesses to different
+types do <b>not</b> alias, except for differences in signedness (this
+applies even to <tt>char</tt> pointers, unlike C99). Type punning
+through unions is explicitly detected and allowed.
+</p>
+
+<h3 id="cdata_call">Calling a cdata object</h3>
+<ul>
+
+<li><b>Constructor</b>: a ctype object can be called and used as a
+<a href="ext_ffi_api.html#ffi_new">constructor</a>. This is equivalent
+to <tt>ffi.new(ct, ...)</tt>, unless a <tt>__new</tt> metamethod is
+defined. The <tt>__new</tt> metamethod is called with the ctype object
+plus any other arguments passed to the contructor. Note that you have to
+use <tt>ffi.new</tt> inside of it, since calling <tt>ct(...)</tt> would
+cause infinite recursion.</li>
+
+<li><b>C&nbsp;function call</b>: a cdata function or cdata function
+pointer can be called. The passed arguments are
+<a href="#convert_fromlua">converted to the C&nbsp;types</a> of the
+parameters given by the function declaration. Arguments passed to the
+variable argument part of vararg C&nbsp;function use
+<a href="#convert_vararg">special conversion rules</a>. This
+C&nbsp;function is called and the return value (if any) is
+<a href="#convert_tolua">converted to a Lua object</a>.<br>
+On Windows/x86 systems, <tt>__stdcall</tt> functions are automatically
+detected and a function declared as <tt>__cdecl</tt> (the default) is
+silently fixed up after the first call.</li>
+
+</ul>
+
+<h3 id="cdata_arith">Arithmetic on cdata objects</h3>
+<ul>
+
+<li><b>Pointer arithmetic</b>: a cdata pointer/array and a cdata
+number or a Lua number can be added or subtracted. The number must be
+on the right hand side for a subtraction. The result is a pointer of
+the same type with an address plus or minus the number value
+multiplied by the element size in bytes. An error is raised if the
+element size is undefined.</li>
+
+<li><b>Pointer difference</b>: two compatible cdata pointers/arrays
+can be subtracted. The result is the difference between their
+addresses, divided by the element size in bytes. An error is raised if
+the element size is undefined or zero.</li>
+
+<li><b>64&nbsp;bit integer arithmetic</b>: the standard arithmetic
+operators (<tt>+&nbsp;-&nbsp;*&nbsp;/&nbsp;%&nbsp;^</tt> and unary
+minus) can be applied to two cdata numbers, or a cdata number and a
+Lua number. If one of them is an <tt>uint64_t</tt>, the other side is
+converted to an <tt>uint64_t</tt> and an unsigned arithmetic operation
+is performed. Otherwise both sides are converted to an
+<tt>int64_t</tt> and a signed arithmetic operation is performed. The
+result is a boxed 64&nbsp;bit cdata object.<br>
+
+If one of the operands is an <tt>enum</tt> and the other operand is a
+string, the string is converted to the value of a matching <tt>enum</tt>
+constant before the above conversion.<br>
+
+These rules ensure that 64&nbsp;bit integers are "sticky". Any
+expression involving at least one 64&nbsp;bit integer operand results
+in another one. The undefined cases for the division, modulo and power
+operators return <tt>2LL&nbsp;^&nbsp;63</tt> or
+<tt>2ULL&nbsp;^&nbsp;63</tt>.<br>
+
+You'll have to explicitly convert a 64&nbsp;bit integer to a Lua
+number (e.g. for regular floating-point calculations) with
+<tt>tonumber()</tt>. But note this may incur a precision loss.</li>
+
+</ul>
+
+<h3 id="cdata_comp">Comparisons of cdata objects</h3>
+<ul>
+
+<li><b>Pointer comparison</b>: two compatible cdata pointers/arrays
+can be compared. The result is the same as an unsigned comparison of
+their addresses. <tt>nil</tt> is treated like a <tt>NULL</tt> pointer,
+which is compatible with any other pointer type.</li>
+
+<li><b>64&nbsp;bit integer comparison</b>: two cdata numbers, or a
+cdata number and a Lua number can be compared with each other. If one
+of them is an <tt>uint64_t</tt>, the other side is converted to an
+<tt>uint64_t</tt> and an unsigned comparison is performed. Otherwise
+both sides are converted to an <tt>int64_t</tt> and a signed
+comparison is performed.<br>
+
+If one of the operands is an <tt>enum</tt> and the other operand is a
+string, the string is converted to the value of a matching <tt>enum</tt>
+constant before the above conversion.<br>
+
+<li><b>Comparisons for equality/inequality</b> never raise an error.
+Even incompatible pointers can be compared for equality by address. Any
+other incompatible comparison (also with non-cdata objects) treats the
+two sides as unequal.</li>
+
+</ul>
+
+<h3 id="cdata_key">cdata objects as table keys</h3>
+<p>
+Lua tables may be indexed by cdata objects, but this doesn't provide
+any useful semantics &mdash; <b>cdata objects are unsuitable as table
+keys!</b>
+</p>
+<p>
+A cdata object is treated like any other garbage-collected object and
+is hashed and compared by its address for table indexing. Since
+there's no interning for cdata value types, the same value may be
+boxed in different cdata objects with different addresses. Thus
+<tt>t[1LL+1LL]</tt> and <tt>t[2LL]</tt> usually <b>do not</b> point to
+the same hash slot and they certainly <b>do not</b> point to the same
+hash slot as <tt>t[2]</tt>.
+</p>
+<p>
+It would seriously drive up implementation complexity and slow down
+the common case, if one were to add extra handling for by-value
+hashing and comparisons to Lua tables. Given the ubiquity of their use
+inside the VM, this is not acceptable.
+</p>
+<p>
+There are three viable alternatives, if you really need to use cdata
+objects as keys:
+</p>
+<ul>
+
+<li>If you can get by with the precision of Lua numbers
+(52&nbsp;bits), then use <tt>tonumber()</tt> on a cdata number or
+combine multiple fields of a cdata aggregate to a Lua number. Then use
+the resulting Lua number as a key when indexing tables.<br>
+One obvious benefit: <tt>t[tonumber(2LL)]</tt> <b>does</b> point to
+the same slot as <tt>t[2]</tt>.</li>
+
+<li>Otherwise use either <tt>tostring()</tt> on 64&nbsp;bit integers
+or complex numbers or combine multiple fields of a cdata aggregate to
+a Lua string (e.g. with
+<a href="ext_ffi_api.html#ffi_string"><tt>ffi.string()</tt></a>). Then
+use the resulting Lua string as a key when indexing tables.</li>
+
+<li>Create your own specialized hash table implementation using the
+C&nbsp;types provided by the FFI library, just like you would in
+C&nbsp;code. Ultimately this may give much better performance than the
+other alternatives or what a generic by-value hash table could
+possibly provide.</li>
+
+</ul>
+
+<h2 id="param">Parameterized Types</h2>
+<p>
+To facilitate some abstractions, the two functions
+<a href="ext_ffi_api.html#ffi_typeof"><tt>ffi.typeof</tt></a> and
+<a href="ext_ffi_api.html#ffi_cdef"><tt>ffi.cdef</tt></a> support
+parameterized types in C&nbsp;declarations. Note: none of the other API
+functions taking a cdecl allow this.
+</p>
+<p>
+Any place you can write a <b><tt>typedef</tt> name</b>, an
+<b>identifier</b> or a <b>number</b> in a declaration, you can write
+<tt>$</tt> (the dollar sign) instead. These placeholders are replaced in
+order of appearance with the arguments following the cdecl string:
+</p>
+<pre class="code">
+-- Declare a struct with a parameterized field type and name:
+ffi.cdef([[
+typedef struct { $ $; } foo_t;
+]], type1, name1)
+
+-- Anonymous struct with dynamic names:
+local bar_t = ffi.typeof("struct { int $, $; }", name1, name2)
+-- Derived pointer type:
+local bar_ptr_t = ffi.typeof("$ *", bar_t)
+
+-- Parameterized dimensions work even where a VLA won't work:
+local matrix_t = ffi.typeof("uint8_t[$][$]", width, height)
+</pre>
+<p>
+Caveat: this is <em>not</em> simple text substitution! A passed ctype or
+cdata object is treated like the underlying type, a passed string is
+considered an identifier and a number is considered a number. You must
+not mix this up: e.g. passing <tt>"int"</tt> as a string doesn't work in
+place of a type, you'd need to use <tt>ffi.typeof("int")</tt> instead.
+</p>
+<p>
+The main use for parameterized types are libraries implementing abstract
+data types
+(<a href="http://www.freelists.org/post/luajit/ffi-type-of-pointer-to,8"><span class="ext">&raquo;</span>&nbsp;example</a>),
+similar to what can be achieved with C++ template metaprogramming.
+Another use case are derived types of anonymous structs, which avoids
+pollution of the global struct namespace.
+</p>
+<p>
+Please note that parameterized types are a nice tool and indispensable
+for certain use cases. But you'll want to use them sparingly in regular
+code, e.g. when all types are actually fixed.
+</p>
+
+<h2 id="gc">Garbage Collection of cdata Objects</h2>
+<p>
+All explicitly (<tt>ffi.new()</tt>, <tt>ffi.cast()</tt> etc.) or
+implicitly (accessors) created cdata objects are garbage collected.
+You need to ensure to retain valid references to cdata objects
+somewhere on a Lua stack, an upvalue or in a Lua table while they are
+still in use. Once the last reference to a cdata object is gone, the
+garbage collector will automatically free the memory used by it (at
+the end of the next GC cycle).
+</p>
+<p>
+Please note that pointers themselves are cdata objects, however they
+are <b>not</b> followed by the garbage collector. So e.g. if you
+assign a cdata array to a pointer, you must keep the cdata object
+holding the array alive as long as the pointer is still in use:
+</p>
+<pre class="code">
+ffi.cdef[[
+typedef struct { int *a; } foo_t;
+]]
+
+local s = ffi.new("foo_t", ffi.new("int[10]")) -- <span style="color:#c00000;">WRONG!</span>
+
+local a = ffi.new("int[10]") -- <span style="color:#00a000;">OK</span>
+local s = ffi.new("foo_t", a)
+-- Now do something with 's', but keep 'a' alive until you're done.
+</pre>
+<p>
+Similar rules apply for Lua strings which are implicitly converted to
+<tt>"const&nbsp;char&nbsp;*"</tt>: the string object itself must be
+referenced somewhere or it'll be garbage collected eventually. The
+pointer will then point to stale data, which may have already been
+overwritten. Note that <em>string literals</em> are automatically kept
+alive as long as the function containing it (actually its prototype)
+is not garbage collected.
+</p>
+<p>
+Objects which are passed as an argument to an external C&nbsp;function
+are kept alive until the call returns. So it's generally safe to
+create temporary cdata objects in argument lists. This is a common
+idiom for <a href="#convert_vararg">passing specific C&nbsp;types to
+vararg functions</a>.
+</p>
+<p>
+Memory areas returned by C functions (e.g. from <tt>malloc()</tt>)
+must be manually managed, of course (or use
+<a href="ext_ffi_api.html#ffi_gc"><tt>ffi.gc()</tt></a>). Pointers to
+cdata objects are indistinguishable from pointers returned by C
+functions (which is one of the reasons why the GC cannot follow them).
+</p>
+
+<h2 id="callback">Callbacks</h2>
+<p>
+The LuaJIT FFI automatically generates special callback functions
+whenever a Lua function is converted to a C&nbsp;function pointer. This
+associates the generated callback function pointer with the C&nbsp;type
+of the function pointer and the Lua function object (closure).
+</p>
+<p>
+This can happen implicitly due to the usual conversions, e.g. when
+passing a Lua function to a function pointer argument. Or you can use
+<tt>ffi.cast()</tt> to explicitly cast a Lua function to a
+C&nbsp;function pointer.
+</p>
+<p>
+Currently only certain C&nbsp;function types can be used as callback
+functions. Neither C&nbsp;vararg functions nor functions with
+pass-by-value aggregate argument or result types are supported. There
+are no restrictions for the kind of Lua functions that can be called
+from the callback &mdash; no checks for the proper number of arguments
+are made. The return value of the Lua function will be converted to the
+result type and an error will be thrown for invalid conversions.
+</p>
+<p>
+It's allowed to throw errors across a callback invocation, but it's not
+advisable in general. Do this only if you know the C&nbsp;function, that
+called the callback, copes with the forced stack unwinding and doesn't
+leak resources.
+</p>
+<p>
+One thing that's not allowed, is to let an FFI call into a C&nbsp;function
+get JIT-compiled, which in turn calls a callback, calling into Lua again.
+Usually this attempt is caught by the interpreter first and the
+C&nbsp;function is blacklisted for compilation.
+</p>
+<p>
+However, this heuristic may fail under specific circumstances: e.g. a
+message polling function might not run Lua callbacks right away and the call
+gets JIT-compiled. If it later happens to call back into Lua (e.g. a rarely
+invoked error callback), you'll get a VM PANIC with the message
+<tt>"bad callback"</tt>. Then you'll need to manually turn off
+JIT-compilation with
+<a href="ext_jit.html#jit_onoff_func"><tt>jit.off()</tt></a> for the
+surrounding Lua function that invokes such a message polling function (or
+similar).
+</p>
+
+<h3 id="callback_resources">Callback resource handling</h3>
+<p>
+Callbacks take up resources &mdash; you can only have a limited number
+of them at the same time (500&nbsp;-&nbsp;1000, depending on the
+architecture). The associated Lua functions are anchored to prevent
+garbage collection, too.
+</p>
+<p>
+<b>Callbacks due to implicit conversions are permanent!</b> There is no
+way to guess their lifetime, since the C&nbsp;side might store the
+function pointer for later use (typical for GUI toolkits). The associated
+resources cannot be reclaimed until termination:
+</p>
+<pre class="code">
+ffi.cdef[[
+typedef int (__stdcall *WNDENUMPROC)(void *hwnd, intptr_t l);
+int EnumWindows(WNDENUMPROC func, intptr_t l);
+]]
+
+-- Implicit conversion to a callback via function pointer argument.
+local count = 0
+ffi.C.EnumWindows(function(hwnd, l)
+  count = count + 1
+  return true
+end, 0)
+-- The callback is permanent and its resources cannot be reclaimed!
+-- Ok, so this may not be a problem, if you do this only once.
+</pre>
+<p>
+Note: this example shows that you <em>must</em> properly declare
+<tt>__stdcall</tt> callbacks on Windows/x86 systems. The calling
+convention cannot be automatically detected, unlike for
+<tt>__stdcall</tt> calls <em>to</em> Windows functions.
+</p>
+<p>
+For some use cases it's necessary to free up the resources or to
+dynamically redirect callbacks. Use an explicit cast to a
+C&nbsp;function pointer and keep the resulting cdata object. Then use
+the <a href="ext_ffi_api.html#callback_free"><tt>cb:free()</tt></a>
+or <a href="ext_ffi_api.html#callback_set"><tt>cb:set()</tt></a> methods
+on the cdata object:
+</p>
+<pre class="code">
+-- Explicitly convert to a callback via cast.
+local count = 0
+local cb = ffi.cast("WNDENUMPROC", function(hwnd, l)
+  count = count + 1
+  return true
+end)
+
+-- Pass it to a C function.
+ffi.C.EnumWindows(cb, 0)
+-- EnumWindows doesn't need the callback after it returns, so free it.
+
+cb:free()
+-- The callback function pointer is no longer valid and its resources
+-- will be reclaimed. The created Lua closure will be garbage collected.
+</pre>
+
+<h3 id="callback_performance">Callback performance</h3>
+<p>
+<b>Callbacks are slow!</b> First, the C&nbsp;to Lua transition itself
+has an unavoidable cost, similar to a <tt>lua_call()</tt> or
+<tt>lua_pcall()</tt>. Argument and result marshalling add to that cost.
+And finally, neither the C&nbsp;compiler nor LuaJIT can inline or
+optimize across the language barrier and hoist repeated computations out
+of a callback function.
+</p>
+<p>
+Do not use callbacks for performance-sensitive work: e.g. consider a
+numerical integration routine which takes a user-defined function to
+integrate over. It's a bad idea to call a user-defined Lua function from
+C&nbsp;code millions of times. The callback overhead will be absolutely
+detrimental for performance.
+</p>
+<p>
+It's considerably faster to write the numerical integration routine
+itself in Lua &mdash; the JIT compiler will be able to inline the
+user-defined function and optimize it together with its calling context,
+with very competitive performance.
+</p>
+<p>
+As a general guideline: <b>use callbacks only when you must</b>, because
+of existing C&nbsp;APIs. E.g. callback performance is irrelevant for a
+GUI application, which waits for user input most of the time, anyway.
+</p>
+<p>
+For new designs <b>avoid push-style APIs</b>: a C&nbsp;function repeatedly
+calling a callback for each result. Instead <b>use pull-style APIs</b>:
+call a C&nbsp;function repeatedly to get a new result. Calls from Lua
+to C via the FFI are much faster than the other way round. Most well-designed
+libraries already use pull-style APIs (read/write, get/put).
+</p>
+
+<h2 id="clib">C Library Namespaces</h2>
+<p>
+A C&nbsp;library namespace is a special kind of object which allows
+access to the symbols contained in shared libraries or the default
+symbol namespace. The default
+<a href="ext_ffi_api.html#ffi_C"><tt>ffi.C</tt></a> namespace is
+automatically created when the FFI library is loaded. C&nbsp;library
+namespaces for specific shared libraries may be created with the
+<a href="ext_ffi_api.html#ffi_load"><tt>ffi.load()</tt></a> API
+function.
+</p>
+<p>
+Indexing a C&nbsp;library namespace object with a symbol name (a Lua
+string) automatically binds it to the library. First the symbol type
+is resolved &mdash; it must have been declared with
+<a href="ext_ffi_api.html#ffi_cdef"><tt>ffi.cdef</tt></a>. Then the
+symbol address is resolved by searching for the symbol name in the
+associated shared libraries or the default symbol namespace. Finally,
+the resulting binding between the symbol name, the symbol type and its
+address is cached. Missing symbol declarations or nonexistent symbol
+names cause an error.
+</p>
+<p>
+This is what happens on a <b>read access</b> for the different kinds of
+symbols:
+</p>
+<ul>
+
+<li>External functions: a cdata object with the type of the function
+and its address is returned.</li>
+
+<li>External variables: the symbol address is dereferenced and the
+loaded value is <a href="#convert_tolua">converted to a Lua object</a>
+and returned.</li>
+
+<li>Constant values (<tt>static&nbsp;const</tt> or <tt>enum</tt>
+constants): the constant is <a href="#convert_tolua">converted to a
+Lua object</a> and returned.</li>
+
+</ul>
+<p>
+This is what happens on a <b>write access</b>:
+</p>
+<ul>
+
+<li>External variables: the value to be written is
+<a href="#convert_fromlua">converted to the C&nbsp;type</a> of the
+variable and then stored at the symbol address.</li>
+
+<li>Writing to constant variables or to any other symbol type causes
+an error, like any other attempted write to a constant location.</li>
+
+</ul>
+<p>
+C&nbsp;library namespaces themselves are garbage collected objects. If
+the last reference to the namespace object is gone, the garbage
+collector will eventually release the shared library reference and
+remove all memory associated with the namespace. Since this may
+trigger the removal of the shared library from the memory of the
+running process, it's generally <em>not safe</em> to use function
+cdata objects obtained from a library if the namespace object may be
+unreferenced.
+</p>
+<p>
+Performance notice: the JIT compiler specializes to the identity of
+namespace objects and to the strings used to index it. This
+effectively turns function cdata objects into constants. It's not
+useful and actually counter-productive to explicitly cache these
+function objects, e.g. <tt>local strlen = ffi.C.strlen</tt>. OTOH it
+<em>is</em> useful to cache the namespace itself, e.g. <tt>local C =
+ffi.C</tt>.
+</p>
+
+<h2 id="policy">No Hand-holding!</h2>
+<p>
+The FFI library has been designed as <b>a low-level library</b>. The
+goal is to interface with C&nbsp;code and C&nbsp;data types with a
+minimum of overhead. This means <b>you can do anything you can do
+from&nbsp;C</b>: access all memory, overwrite anything in memory, call
+machine code at any memory address and so on.
+</p>
+<p>
+The FFI library provides <b>no memory safety</b>, unlike regular Lua
+code. It will happily allow you to dereference a <tt>NULL</tt>
+pointer, to access arrays out of bounds or to misdeclare
+C&nbsp;functions. If you make a mistake, your application might crash,
+just like equivalent C&nbsp;code would.
+</p>
+<p>
+This behavior is inevitable, since the goal is to provide full
+interoperability with C&nbsp;code. Adding extra safety measures, like
+bounds checks, would be futile. There's no way to detect
+misdeclarations of C&nbsp;functions, since shared libraries only
+provide symbol names, but no type information. Likewise there's no way
+to infer the valid range of indexes for a returned pointer.
+</p>
+<p>
+Again: the FFI library is a low-level library. This implies it needs
+to be used with care, but it's flexibility and performance often
+outweigh this concern. If you're a C or C++ developer, it'll be easy
+to apply your existing knowledge. OTOH writing code for the FFI
+library is not for the faint of heart and probably shouldn't be the
+first exercise for someone with little experience in Lua, C or C++.
+</p>
+<p>
+As a corollary of the above, the FFI library is <b>not safe for use by
+untrusted Lua code</b>. If you're sandboxing untrusted Lua code, you
+definitely don't want to give this code access to the FFI library or
+to <em>any</em> cdata object (except 64&nbsp;bit integers or complex
+numbers). Any properly engineered Lua sandbox needs to provide safety
+wrappers for many of the standard Lua library functions &mdash;
+similar wrappers need to be written for high-level operations on FFI
+data types, too.
+</p>
+
+<h2 id="status">Current Status</h2>
+<p>
+The initial release of the FFI library has some limitations and is
+missing some features. Most of these will be fixed in future releases.
+</p>
+<p>
+<a href="#clang">C language support</a> is
+currently incomplete:
+</p>
+<ul>
+<li>C&nbsp;declarations are not passed through a C&nbsp;pre-processor,
+yet.</li>
+<li>The C&nbsp;parser is able to evaluate most constant expressions
+commonly found in C&nbsp;header files. However it doesn't handle the
+full range of C&nbsp;expression semantics and may fail for some
+obscure constructs.</li>
+<li><tt>static const</tt> declarations only work for integer types
+up to 32&nbsp;bits. Neither declaring string constants nor
+floating-point constants is supported.</li>
+<li>Packed <tt>struct</tt> bitfields that cross container boundaries
+are not implemented.</li>
+<li>Native vector types may be defined with the GCC <tt>mode</tt> or
+<tt>vector_size</tt> attribute. But no operations other than loading,
+storing and initializing them are supported, yet.</li>
+<li>The <tt>volatile</tt> type qualifier is currently ignored by
+compiled code.</li>
+<li><a href="ext_ffi_api.html#ffi_cdef"><tt>ffi.cdef</tt></a> silently
+ignores most re-declarations. Note: avoid re-declarations which do not
+conform to C99. The implementation will eventually be changed to
+perform strict checks.</li>
+</ul>
+<p>
+The JIT compiler already handles a large subset of all FFI operations.
+It automatically falls back to the interpreter for unimplemented
+operations (you can check for this with the
+<a href="running.html#opt_j"><tt>-jv</tt></a> command line option).
+The following operations are currently not compiled and may exhibit
+suboptimal performance, especially when used in inner loops:
+</p>
+<ul>
+<li>Bitfield accesses and initializations.</li>
+<li>Vector operations.</li>
+<li>Table initializers.</li>
+<li>Initialization of nested <tt>struct</tt>/<tt>union</tt> types.</li>
+<li>Allocations of variable-length arrays or structs.</li>
+<li>Allocations of C&nbsp;types with a size &gt; 128&nbsp;bytes or an
+alignment &gt; 8&nbsp;bytes.</li>
+<li>Conversions from lightuserdata to <tt>void&nbsp;*</tt>.</li>
+<li>Pointer differences for element sizes that are not a power of
+two.</li>
+<li>Calls to C&nbsp;functions with aggregates passed or returned by
+value.</li>
+<li>Calls to ctype metamethods which are not plain functions.</li>
+<li>ctype <tt>__newindex</tt> tables and non-string lookups in ctype
+<tt>__index</tt> tables.</li>
+<li><tt>tostring()</tt> for cdata types.</li>
+<li>Calls to <tt>ffi.cdef()</tt>, <tt>ffi.load()</tt> and
+<tt>ffi.metatype()</tt>.</li>
+</ul>
+<p>
+Other missing features:
+</p>
+<ul>
+<li>Bit operations for 64&nbsp;bit types.</li>
+<li>Arithmetic for <tt>complex</tt> numbers.</li>
+<li>Passing structs by value to vararg C&nbsp;functions.</li>
+<li><a href="extensions.html#exceptions">C++ exception interoperability</a>
+does not extend to C&nbsp;functions called via the FFI, if the call is
+compiled.</li>
+</ul>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/ext_ffi_tutorial.html b/lib/luajit/doc/ext_ffi_tutorial.html
new file mode 100644
index 00000000..01fb8992
--- /dev/null
+++ b/lib/luajit/doc/ext_ffi_tutorial.html
@@ -0,0 +1,601 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>FFI Tutorial</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+table.idiomtable { font-size: 90%; line-height: 1.2; }
+table.idiomtable tt { font-size: 100%; }
+table.idiomtable td { vertical-align: top; }
+tr.idiomhead td { font-weight: bold; }
+td.idiomlua b { font-weight: normal; color: #2142bf; }
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>FFI Tutorial</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a class="current" href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+This page is intended to give you an overview of the features of the FFI
+library by presenting a few use cases and guidelines.
+</p>
+<p>
+This page makes no attempt to explain all of the FFI library, though.
+You'll want to have a look at the <a href="ext_ffi_api.html">ffi.* API
+function reference</a> and the <a href="ext_ffi_semantics.html">FFI
+semantics</a> to learn more.
+</p>
+
+<h2 id="load">Loading the FFI Library</h2>
+<p>
+The FFI library is built into LuaJIT by default, but it's not loaded
+and initialized by default. The suggested way to use the FFI library
+is to add the following to the start of every Lua file that needs one
+of its functions:
+</p>
+<pre class="code">
+local ffi = require("ffi")
+</pre>
+<p>
+Please note this doesn't define an <tt>ffi</tt> variable in the table
+of globals &mdash; you really need to use the local variable. The
+<tt>require</tt> function ensures the library is only loaded once.
+</p>
+<p style="font-size: 8pt;">
+Note: If you want to experiment with the FFI from the interactive prompt
+of the command line executable, omit the <tt>local</tt>, as it doesn't
+preserve local variables across lines.
+</p>
+
+<h2 id="sleep">Accessing Standard System Functions</h2>
+<p>
+The following code explains how to access standard system functions.
+We slowly print two lines of dots by sleeping for 10&nbsp;milliseconds
+after each dot:
+</p>
+<pre class="code mark">
+<span class="codemark">&nbsp;
+&#9312;
+
+
+
+
+
+&#9313;
+&#9314;
+&#9315;
+
+
+
+&#9316;
+
+
+
+
+
+&#9317;</span>local ffi = require("ffi")
+ffi.cdef[[
+<span style="color:#00a000;">void Sleep(int ms);
+int poll(struct pollfd *fds, unsigned long nfds, int timeout);</span>
+]]
+
+local sleep
+if ffi.os == "Windows" then
+  function sleep(s)
+    ffi.C.Sleep(s*1000)
+  end
+else
+  function sleep(s)
+    ffi.C.poll(nil, 0, s*1000)
+  end
+end
+
+for i=1,160 do
+  io.write("."); io.flush()
+  sleep(0.01)
+end
+io.write("\n")
+</pre>
+<p>
+Here's the step-by-step explanation:
+</p>
+<p>
+<span class="mark">&#9312;</span> This defines the
+C&nbsp;library functions we're going to use. The part inside the
+double-brackets (in green) is just standard C&nbsp;syntax. You can
+usually get this info from the C&nbsp;header files or the
+documentation provided by each C&nbsp;library or C&nbsp;compiler.
+</p>
+<p>
+<span class="mark">&#9313;</span> The difficulty we're
+facing here, is that there are different standards to choose from.
+Windows has a simple <tt>Sleep()</tt> function. On other systems there
+are a variety of functions available to achieve sub-second sleeps, but
+with no clear consensus. Thankfully <tt>poll()</tt> can be used for
+this task, too, and it's present on most non-Windows systems. The
+check for <tt>ffi.os</tt> makes sure we use the Windows-specific
+function only on Windows systems.
+</p>
+<p>
+<span class="mark">&#9314;</span> Here we're wrapping the
+call to the C&nbsp;function in a Lua function. This isn't strictly
+necessary, but it's helpful to deal with system-specific issues only
+in one part of the code. The way we're wrapping it ensures the check
+for the OS is only done during initialization and not for every call.
+</p>
+<p>
+<span class="mark">&#9315;</span> A more subtle point is
+that we defined our <tt>sleep()</tt> function (for the sake of this
+example) as taking the number of seconds, but accepting fractional
+seconds. Multiplying this by 1000 gets us milliseconds, but that still
+leaves it a Lua number, which is a floating-point value. Alas, the
+<tt>Sleep()</tt> function only accepts an integer value. Luckily for
+us, the FFI library automatically performs the conversion when calling
+the function (truncating the FP value towards zero, like in C).
+</p>
+<p style="font-size: 8pt;">
+Some readers will notice that <tt>Sleep()</tt> is part of
+<tt>KERNEL32.DLL</tt> and is also a <tt>stdcall</tt> function. So how
+can this possibly work? The FFI library provides the <tt>ffi.C</tt>
+default C&nbsp;library namespace, which allows calling functions from
+the default set of libraries, like a C&nbsp;compiler would. Also, the
+FFI library automatically detects <tt>stdcall</tt> functions, so you
+don't need to declare them as such.
+</p>
+<p>
+<span class="mark">&#9316;</span> The <tt>poll()</tt>
+function takes a couple more arguments we're not going to use. You can
+simply use <tt>nil</tt> to pass a <tt>NULL</tt> pointer and <tt>0</tt>
+for the <tt>nfds</tt> parameter. Please note that the
+number&nbsp;<tt>0</tt> <em>does not convert to a pointer value</em>,
+unlike in C++. You really have to pass pointers to pointer arguments
+and numbers to number arguments.
+</p>
+<p style="font-size: 8pt;">
+The page on <a href="ext_ffi_semantics.html">FFI semantics</a> has all
+of the gory details about
+<a href="ext_ffi_semantics.html#convert">conversions between Lua
+objects and C&nbsp;types</a>. For the most part you don't have to deal
+with this, as it's performed automatically and it's carefully designed
+to bridge the semantic differences between Lua and C.
+</p>
+<p>
+<span class="mark">&#9317;</span> Now that we have defined
+our own <tt>sleep()</tt> function, we can just call it from plain Lua
+code. That wasn't so bad, huh? Turning these boring animated dots into
+a fascinating best-selling game is left as an exercise for the reader.
+:-)
+</p>
+
+<h2 id="zlib">Accessing the zlib Compression Library</h2>
+<p>
+The following code shows how to access the <a
+href="http://zlib.net/">zlib</a> compression library from Lua code.
+We'll define two convenience wrapper functions that take a string and
+compress or uncompress it to another string:
+</p>
+<pre class="code mark">
+<span class="codemark">&nbsp;
+&#9312;
+
+
+
+
+
+
+&#9313;
+
+
+&#9314;
+
+&#9315;
+
+
+&#9316;
+
+
+&#9317;
+
+
+
+
+
+
+
+&#9318;</span>local ffi = require("ffi")
+ffi.cdef[[
+<span style="color:#00a000;">unsigned long compressBound(unsigned long sourceLen);
+int compress2(uint8_t *dest, unsigned long *destLen,
+	      const uint8_t *source, unsigned long sourceLen, int level);
+int uncompress(uint8_t *dest, unsigned long *destLen,
+	       const uint8_t *source, unsigned long sourceLen);</span>
+]]
+local zlib = ffi.load(ffi.os == "Windows" and "zlib1" or "z")
+
+local function compress(txt)
+  local n = zlib.compressBound(#txt)
+  local buf = ffi.new("uint8_t[?]", n)
+  local buflen = ffi.new("unsigned long[1]", n)
+  local res = zlib.compress2(buf, buflen, txt, #txt, 9)
+  assert(res == 0)
+  return ffi.string(buf, buflen[0])
+end
+
+local function uncompress(comp, n)
+  local buf = ffi.new("uint8_t[?]", n)
+  local buflen = ffi.new("unsigned long[1]", n)
+  local res = zlib.uncompress(buf, buflen, comp, #comp)
+  assert(res == 0)
+  return ffi.string(buf, buflen[0])
+end
+
+-- Simple test code.
+local txt = string.rep("abcd", 1000)
+print("Uncompressed size: ", #txt)
+local c = compress(txt)
+print("Compressed size: ", #c)
+local txt2 = uncompress(c, #txt)
+assert(txt2 == txt)
+</pre>
+<p>
+Here's the step-by-step explanation:
+</p>
+<p>
+<span class="mark">&#9312;</span> This defines some of the
+C&nbsp;functions provided by zlib. For the sake of this example, some
+type indirections have been reduced and it uses the pre-defined
+fixed-size integer types, while still adhering to the zlib API/ABI.
+</p>
+<p>
+<span class="mark">&#9313;</span> This loads the zlib shared
+library. On POSIX systems it's named <tt>libz.so</tt> and usually
+comes pre-installed. Since <tt>ffi.load()</tt> automatically adds any
+missing standard prefixes/suffixes, we can simply load the
+<tt>"z"</tt> library. On Windows it's named <tt>zlib1.dll</tt> and
+you'll have to download it first from the
+<a href="http://zlib.net/"><span class="ext">&raquo;</span>&nbsp;zlib site</a>. The check for
+<tt>ffi.os</tt> makes sure we pass the right name to
+<tt>ffi.load()</tt>.
+</p>
+<p>
+<span class="mark">&#9314;</span> First, the maximum size of
+the compression buffer is obtained by calling the
+<tt>zlib.compressBound</tt> function with the length of the
+uncompressed string. The next line allocates a byte buffer of this
+size. The <tt>[?]</tt> in the type specification indicates a
+variable-length array (VLA). The actual number of elements of this
+array is given as the 2nd argument to <tt>ffi.new()</tt>.
+</p>
+<p>
+<span class="mark">&#9315;</span> This may look strange at
+first, but have a look at the declaration of the <tt>compress2</tt>
+function from zlib: the destination length is defined as a pointer!
+This is because you pass in the maximum buffer size and get back the
+actual length that was used.
+</p>
+<p>
+In C you'd pass in the address of a local variable
+(<tt>&amp;buflen</tt>). But since there's no address-of operator in
+Lua, we'll just pass in a one-element array. Conveniently it can be
+initialized with the maximum buffer size in one step. Calling the
+actual <tt>zlib.compress2</tt> function is then straightforward.
+</p>
+<p>
+<span class="mark">&#9316;</span> We want to return the
+compressed data as a Lua string, so we'll use <tt>ffi.string()</tt>.
+It needs a pointer to the start of the data and the actual length. The
+length has been returned in the <tt>buflen</tt> array, so we'll just
+get it from there.
+</p>
+<p style="font-size: 8pt;">
+Note that since the function returns now, the <tt>buf</tt> and
+<tt>buflen</tt> variables will eventually be garbage collected. This
+is fine, because <tt>ffi.string()</tt> has copied the contents to a
+newly created (interned) Lua string. If you plan to call this function
+lots of times, consider reusing the buffers and/or handing back the
+results in buffers instead of strings. This will reduce the overhead
+for garbage collection and string interning.
+</p>
+<p>
+<span class="mark">&#9317;</span> The <tt>uncompress</tt>
+functions does the exact opposite of the <tt>compress</tt> function.
+The compressed data doesn't include the size of the original string,
+so this needs to be passed in. Otherwise no surprises here.
+</p>
+<p>
+<span class="mark">&#9318;</span> The code, that makes use
+of the functions we just defined, is just plain Lua code. It doesn't
+need to know anything about the LuaJIT FFI &mdash; the convenience
+wrapper functions completely hide it.
+</p>
+<p>
+One major advantage of the LuaJIT FFI is that you are now able to
+write those wrappers <em>in Lua</em>. And at a fraction of the time it
+would cost you to create an extra C&nbsp;module using the Lua/C API.
+Many of the simpler C&nbsp;functions can probably be used directly
+from your Lua code, without any wrappers.
+</p>
+<p style="font-size: 8pt;">
+Side note: the zlib API uses the <tt>long</tt> type for passing
+lengths and sizes around. But all those zlib functions actually only
+deal with 32&nbsp;bit values. This is an unfortunate choice for a
+public API, but may be explained by zlib's history &mdash; we'll just
+have to deal with it.
+</p>
+<p style="font-size: 8pt;">
+First, you should know that a <tt>long</tt> is a 64&nbsp;bit type e.g.
+on POSIX/x64 systems, but a 32&nbsp;bit type on Windows/x64 and on
+32&nbsp;bit systems. Thus a <tt>long</tt> result can be either a plain
+Lua number or a boxed 64&nbsp;bit integer cdata object, depending on
+the target system.
+</p>
+<p style="font-size: 8pt;">
+Ok, so the <tt>ffi.*</tt> functions generally accept cdata objects
+wherever you'd want to use a number. That's why we get a away with
+passing <tt>n</tt> to <tt>ffi.string()</tt> above. But other Lua
+library functions or modules don't know how to deal with this. So for
+maximum portability one needs to use <tt>tonumber()</tt> on returned
+<tt>long</tt> results before passing them on. Otherwise the
+application might work on some systems, but would fail in a POSIX/x64
+environment.
+</p>
+
+<h2 id="metatype">Defining Metamethods for a C&nbsp;Type</h2>
+<p>
+The following code explains how to define metamethods for a C type.
+We define a simple point type and add some operations to it:
+</p>
+<pre class="code mark">
+<span class="codemark">&nbsp;
+&#9312;
+
+
+
+&#9313;
+
+&#9314;
+
+&#9315;
+
+
+
+&#9316;
+
+&#9317;</span>local ffi = require("ffi")
+ffi.cdef[[
+<span style="color:#00a000;">typedef struct { double x, y; } point_t;</span>
+]]
+
+local point
+local mt = {
+  __add = function(a, b) return point(a.x+b.x, a.y+b.y) end,
+  __len = function(a) return math.sqrt(a.x*a.x + a.y*a.y) end,
+  __index = {
+    area = function(a) return a.x*a.x + a.y*a.y end,
+  },
+}
+point = ffi.metatype("point_t", mt)
+
+local a = point(3, 4)
+print(a.x, a.y)  --> 3  4
+print(#a)        --> 5
+print(a:area())  --> 25
+local b = a + point(0.5, 8)
+print(#b)        --> 12.5
+</pre>
+<p>
+Here's the step-by-step explanation:
+</p>
+<p>
+<span class="mark">&#9312;</span> This defines the C&nbsp;type for a
+two-dimensional point object.
+</p>
+<p>
+<span class="mark">&#9313;</span> We have to declare the variable
+holding the point constructor first, because it's used inside of a
+metamethod.
+</p>
+<p>
+<span class="mark">&#9314;</span> Let's define an <tt>__add</tt>
+metamethod which adds the coordinates of two points and creates a new
+point object. For simplicity, this function assumes that both arguments
+are points. But it could be any mix of objects, if at least one operand
+is of the required type (e.g. adding a point plus a number or vice
+versa). Our <tt>__len</tt> metamethod returns the distance of a point to
+the origin.
+</p>
+<p>
+<span class="mark">&#9315;</span> If we run out of operators, we can
+define named methods, too. Here the <tt>__index</tt> table defines an
+<tt>area</tt> function. For custom indexing needs, one might want to
+define <tt>__index</tt> and <tt>__newindex</tt> <em>functions</em> instead.
+</p>
+<p>
+<span class="mark">&#9316;</span> This associates the metamethods with
+our C&nbsp;type. This only needs to be done once. For convenience, a
+constructor is returned by
+<a href="ext_ffi_api.html#ffi_metatype"><tt>ffi.metatype()</tt></a>.
+We're not required to use it, though. The original C&nbsp;type can still
+be used e.g. to create an array of points. The metamethods automatically
+apply to any and all uses of this type.
+</p>
+<p>
+Please note that the association with a metatable is permanent and
+<b>the metatable must not be modified afterwards!</b> Ditto for the
+<tt>__index</tt> table.
+</p>
+<p>
+<span class="mark">&#9317;</span> Here are some simple usage examples
+for the point type and their expected results. The pre-defined
+operations (such as <tt>a.x</tt>) can be freely mixed with the newly
+defined metamethods. Note that <tt>area</tt> is a method and must be
+called with the Lua syntax for methods: <tt>a:area()</tt>, not
+<tt>a.area()</tt>.
+</p>
+<p>
+The C&nbsp;type metamethod mechanism is most useful when used in
+conjunction with C&nbsp;libraries that are written in an object-oriented
+style. Creators return a pointer to a new instance and methods take an
+instance pointer as the first argument. Sometimes you can just point
+<tt>__index</tt> to the library namespace and <tt>__gc</tt> to the
+destructor and you're done. But often enough you'll want to add
+convenience wrappers, e.g. to return actual Lua strings or when
+returning multiple values.
+</p>
+<p>
+Some C libraries only declare instance pointers as an opaque
+<tt>void&nbsp;*</tt> type. In this case you can use a fake type for all
+declarations, e.g. a pointer to a named (incomplete) struct will do:
+<tt>typedef struct foo_type *foo_handle</tt>. The C&nbsp;side doesn't
+know what you declare with the LuaJIT FFI, but as long as the underlying
+types are compatible, everything still works.
+</p>
+
+<h2 id="idioms">Translating C&nbsp;Idioms</h2>
+<p>
+Here's a list of common C&nbsp;idioms and their translation to the
+LuaJIT FFI:
+</p>
+<table class="idiomtable">
+<tr class="idiomhead">
+<td class="idiomdesc">Idiom</td>
+<td class="idiomc">C&nbsp;code</td>
+<td class="idiomlua">Lua code</td>
+</tr>
+<tr class="odd separate">
+<td class="idiomdesc">Pointer dereference<br><tt>int *p;</tt></td><td class="idiomc"><tt>x = *p;<br>*p = y;</tt></td><td class="idiomlua"><tt>x = <b>p[0]</b><br><b>p[0]</b> = y</tt></td></tr>
+<tr class="even">
+<td class="idiomdesc">Pointer indexing<br><tt>int i, *p;</tt></td><td class="idiomc"><tt>x = p[i];<br>p[i+1] = y;</tt></td><td class="idiomlua"><tt>x = p[i]<br>p[i+1] = y</tt></td></tr>
+<tr class="odd">
+<td class="idiomdesc">Array indexing<br><tt>int i, a[];</tt></td><td class="idiomc"><tt>x = a[i];<br>a[i+1] = y;</tt></td><td class="idiomlua"><tt>x = a[i]<br>a[i+1] = y</tt></td></tr>
+<tr class="even separate">
+<td class="idiomdesc"><tt>struct</tt>/<tt>union</tt> dereference<br><tt>struct foo s;</tt></td><td class="idiomc"><tt>x = s.field;<br>s.field = y;</tt></td><td class="idiomlua"><tt>x = s.field<br>s.field = y</tt></td></tr>
+<tr class="odd">
+<td class="idiomdesc"><tt>struct</tt>/<tt>union</tt> pointer deref.<br><tt>struct foo *sp;</tt></td><td class="idiomc"><tt>x = sp->field;<br>sp->field = y;</tt></td><td class="idiomlua"><tt>x = <b>s.field</b><br><b>s.field</b> = y</tt></td></tr>
+<tr class="even separate">
+<td class="idiomdesc">Pointer arithmetic<br><tt>int i, *p;</tt></td><td class="idiomc"><tt>x = p + i;<br>y = p - i;</tt></td><td class="idiomlua"><tt>x = p + i<br>y = p - i</tt></td></tr>
+<tr class="odd">
+<td class="idiomdesc">Pointer difference<br><tt>int *p1, *p2;</tt></td><td class="idiomc"><tt>x = p1 - p2;</tt></td><td class="idiomlua"><tt>x = p1 - p2</tt></td></tr>
+<tr class="even">
+<td class="idiomdesc">Array element pointer<br><tt>int i, a[];</tt></td><td class="idiomc"><tt>x = &amp;a[i];</tt></td><td class="idiomlua"><tt>x = <b>a+i</b></tt></td></tr>
+<tr class="odd">
+<td class="idiomdesc">Cast pointer to address<br><tt>int *p;</tt></td><td class="idiomc"><tt>x = (intptr_t)p;</tt></td><td class="idiomlua"><tt>x = <b>tonumber(<br>&nbsp;ffi.cast("intptr_t",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;p))</b></tt></td></tr>
+<tr class="even separate">
+<td class="idiomdesc">Functions with outargs<br><tt>void foo(int *inoutlen);</tt></td><td class="idiomc"><tt>int len = x;<br>foo(&amp;len);<br>y = len;</tt></td><td class="idiomlua"><tt><b>local len =<br>&nbsp;&nbsp;ffi.new("int[1]", x)<br>foo(len)<br>y = len[0]</b></tt></td></tr>
+<tr class="odd">
+<td class="idiomdesc"><a href="ext_ffi_semantics.html#convert_vararg">Vararg conversions</a><br><tt>int printf(char *fmt, ...);</tt></td><td class="idiomc"><tt>printf("%g", 1.0);<br>printf("%d", 1);<br>&nbsp;</tt></td><td class="idiomlua"><tt>printf("%g", 1);<br>printf("%d",<br>&nbsp;&nbsp;<b>ffi.new("int", 1)</b>)</tt></td></tr>
+</table>
+
+<h2 id="cache">To Cache or Not to Cache</h2>
+<p>
+It's a common Lua idiom to cache library functions in local variables
+or upvalues, e.g.:
+</p>
+<pre class="code">
+local byte, char = string.byte, string.char
+local function foo(x)
+  return char(byte(x)+1)
+end
+</pre>
+<p>
+This replaces several hash-table lookups with a (faster) direct use of
+a local or an upvalue. This is less important with LuaJIT, since the
+JIT compiler optimizes hash-table lookups a lot and is even able to
+hoist most of them out of the inner loops. It can't eliminate
+<em>all</em> of them, though, and it saves some typing for often-used
+functions. So there's still a place for this, even with LuaJIT.
+</p>
+<p>
+The situation is a bit different with C&nbsp;function calls via the
+FFI library. The JIT compiler has special logic to eliminate <em>all
+of the lookup overhead</em> for functions resolved from a
+<a href="ext_ffi_semantics.html#clib">C&nbsp;library namespace</a>!
+Thus it's not helpful and actually counter-productive to cache
+individual C&nbsp;functions like this:
+</p>
+<pre class="code">
+local <b>funca</b>, <b>funcb</b> = ffi.C.funcb, ffi.C.funcb -- <span style="color:#c00000;">Not helpful!</span>
+local function foo(x, n)
+  for i=1,n do <b>funcb</b>(<b>funca</b>(x, i), 1) end
+end
+</pre>
+<p>
+This turns them into indirect calls and generates bigger and slower
+machine code. Instead you'll want to cache the namespace itself and
+rely on the JIT compiler to eliminate the lookups:
+</p>
+<pre class="code">
+local <b>C</b> = ffi.C          -- <span style="color:#00a000;">Instead use this!</span>
+local function foo(x, n)
+  for i=1,n do <b>C.funcb</b>(<b>C.funca</b>(x, i), 1) end
+end
+</pre>
+<p>
+This generates both shorter and faster code. So <b>don't cache
+C&nbsp;functions</b>, but <b>do</b> cache namespaces! Most often the
+namespace is already in a local variable at an outer scope, e.g. from
+<tt>local&nbsp;lib&nbsp;=&nbsp;ffi.load(...)</tt>. Note that copying
+it to a local variable in the function scope is unnecessary.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/ext_jit.html b/lib/luajit/doc/ext_jit.html
new file mode 100644
index 00000000..098be5e0
--- /dev/null
+++ b/lib/luajit/doc/ext_jit.html
@@ -0,0 +1,199 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>jit.* Library</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1><tt>jit.*</tt> Library</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a class="current" href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+The functions in this built-in module control the behavior of the JIT
+compiler engine. Note that JIT-compilation is fully automatic &mdash;
+you probably won't need to use any of the following functions unless
+you have special needs.
+</p>
+
+<h3 id="jit_onoff"><tt>jit.on()<br>
+jit.off()</tt></h3>
+<p>
+Turns the whole JIT compiler on (default) or off.
+</p>
+<p>
+These functions are typically used with the command line options
+<tt>-j on</tt> or <tt>-j off</tt>.
+</p>
+
+<h3 id="jit_flush"><tt>jit.flush()</tt></h3>
+<p>
+Flushes the whole cache of compiled code.
+</p>
+
+<h3 id="jit_onoff_func"><tt>jit.on(func|true [,true|false])<br>
+jit.off(func|true [,true|false])<br>
+jit.flush(func|true [,true|false])</tt></h3>
+<p>
+<tt>jit.on</tt> enables JIT compilation for a Lua function (this is
+the default).
+</p>
+<p>
+<tt>jit.off</tt> disables JIT compilation for a Lua function and
+flushes any already compiled code from the code cache.
+</p>
+<p>
+<tt>jit.flush</tt> flushes the code, but doesn't affect the
+enable/disable status.
+</p>
+<p>
+The current function, i.e. the Lua function calling this library
+function, can also be specified by passing <tt>true</tt> as the first
+argument.
+</p>
+<p>
+If the second argument is <tt>true</tt>, JIT compilation is also
+enabled, disabled or flushed recursively for all sub-functions of a
+function. With <tt>false</tt> only the sub-functions are affected.
+</p>
+<p>
+The <tt>jit.on</tt> and <tt>jit.off</tt> functions only set a flag
+which is checked when the function is about to be compiled. They do
+not trigger immediate compilation.
+</p>
+<p>
+Typical usage is <tt>jit.off(true, true)</tt> in the main chunk
+of a module to turn off JIT compilation for the whole module for
+debugging purposes.
+</p>
+
+<h3 id="jit_flush_tr"><tt>jit.flush(tr)</tt></h3>
+<p>
+Flushes the root trace, specified by its number, and all of its side
+traces from the cache. The code for the trace will be retained as long
+as there are any other traces which link to it.
+</p>
+
+<h3 id="jit_status"><tt>status, ... = jit.status()</tt></h3>
+<p>
+Returns the current status of the JIT compiler. The first result is
+either <tt>true</tt> or <tt>false</tt> if the JIT compiler is turned
+on or off. The remaining results are strings for CPU-specific features
+and enabled optimizations.
+</p>
+
+<h3 id="jit_version"><tt>jit.version</tt></h3>
+<p>
+Contains the LuaJIT version string.
+</p>
+
+<h3 id="jit_version_num"><tt>jit.version_num</tt></h3>
+<p>
+Contains the version number of the LuaJIT core. Version xx.yy.zz
+is represented by the decimal number xxyyzz.
+</p>
+
+<h3 id="jit_os"><tt>jit.os</tt></h3>
+<p>
+Contains the target OS name:
+"Windows", "Linux", "OSX", "BSD", "POSIX" or "Other".
+</p>
+
+<h3 id="jit_arch"><tt>jit.arch</tt></h3>
+<p>
+Contains the target architecture name:
+"x86", "x64" or "ppcspe".
+</p>
+
+<h2 id="jit_opt"><tt>jit.opt.*</tt> &mdash; JIT compiler optimization control</h2>
+<p>
+This sub-module provides the backend for the <tt>-O</tt> command line
+option.
+</p>
+<p>
+You can also use it programmatically, e.g.:
+</p>
+<pre class="code">
+jit.opt.start(2) -- same as -O2
+jit.opt.start("-dce")
+jit.opt.start("hotloop=10", "hotexit=2")
+</pre>
+<p>
+Unlike in LuaJIT 1.x, the module is built-in and
+<b>optimization is turned on by default!</b>
+It's no longer necessary to run <tt>require("jit.opt").start()</tt>,
+which was one of the ways to enable optimization.
+</p>
+
+<h2 id="jit_util"><tt>jit.util.*</tt> &mdash; JIT compiler introspection</h2>
+<p>
+This sub-module holds functions to introspect the bytecode, generated
+traces, the IR and the generated machine code. The functionality
+provided by this module is still in flux and therefore undocumented.
+</p>
+<p>
+The debug modules <tt>-jbc</tt>, <tt>-jv</tt> and <tt>-jdump</tt> make
+extensive use of these functions. Please check out their source code,
+if you want to know more.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/extensions.html b/lib/luajit/doc/extensions.html
new file mode 100644
index 00000000..20b597f1
--- /dev/null
+++ b/lib/luajit/doc/extensions.html
@@ -0,0 +1,408 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Extensions</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+table.exc {
+  line-height: 1.2;
+}
+tr.exchead td {
+  font-weight: bold;
+}
+td.excplatform {
+  width: 48%;
+}
+td.exccompiler {
+  width: 29%;
+}
+td.excinterop {
+  width: 23%;
+}
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Extensions</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a class="current" href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+LuaJIT is fully upwards-compatible with Lua 5.1. It supports all
+<a href="http://www.lua.org/manual/5.1/manual.html#5"><span class="ext">&raquo;</span>&nbsp;standard Lua
+library functions</a> and the full set of
+<a href="http://www.lua.org/manual/5.1/manual.html#3"><span class="ext">&raquo;</span>&nbsp;Lua/C API
+functions</a>.
+</p>
+<p>
+LuaJIT is also fully ABI-compatible to Lua 5.1 at the linker/dynamic
+loader level. This means you can compile a C&nbsp;module against the
+standard Lua headers and load the same shared library from either Lua
+or LuaJIT.
+</p>
+<p>
+LuaJIT extends the standard Lua VM with new functionality and adds
+several extension modules. Please note this page is only about
+<em>functional</em> enhancements and not about performance enhancements,
+such as the optimized VM, the faster interpreter or the JIT compiler.
+</p>
+
+<h2 id="modules">Extensions Modules</h2>
+<p>
+LuaJIT comes with several built-in extension modules:
+</p>
+
+<h3 id="bit"><tt>bit.*</tt> &mdash; Bitwise operations</h3>
+<p>
+LuaJIT supports all bitwise operations as defined by
+<a href="http://bitop.luajit.org"><span class="ext">&raquo;</span>&nbsp;Lua BitOp</a>:
+</p>
+<pre class="code">
+bit.tobit  bit.tohex  bit.bnot    bit.band bit.bor  bit.bxor
+bit.lshift bit.rshift bit.arshift bit.rol  bit.ror  bit.bswap
+</pre>
+<p>
+This module is a LuaJIT built-in &mdash; you don't need to download or
+install Lua BitOp. The Lua BitOp site has full documentation for all
+<a href="http://bitop.luajit.org/api.html"><span class="ext">&raquo;</span>&nbsp;Lua BitOp API functions</a>.
+</p>
+<p>
+Please make sure to <tt>require</tt> the module before using any of
+its functions:
+</p>
+<pre class="code">
+local bit = require("bit")
+</pre>
+<p>
+An already installed Lua BitOp module is ignored by LuaJIT.
+This way you can use bit operations from both Lua and LuaJIT on a
+shared installation.
+</p>
+
+<h3 id="ffi"><tt>ffi.*</tt> &mdash; FFI library</h3>
+<p>
+The <a href="ext_ffi.html">FFI library</a> allows calling external
+C&nbsp;functions and the use of C&nbsp;data structures from pure Lua
+code.
+</p>
+
+<h3 id="jit"><tt>jit.*</tt> &mdash; JIT compiler control</h3>
+<p>
+The functions in this module
+<a href="ext_jit.html">control the behavior of the JIT compiler engine</a>.
+</p>
+
+<h3 id="c_api">C API extensions</h3>
+<p>
+LuaJIT adds some
+<a href="ext_c_api.html">extra functions to the Lua/C API</a>.
+</p>
+
+<h2 id="library">Enhanced Standard Library Functions</h2>
+
+<h3 id="xpcall"><tt>xpcall(f, err [,args...])</tt> passes arguments</h3>
+<p>
+Unlike the standard implementation in Lua 5.1, <tt>xpcall()</tt>
+passes any arguments after the error function to the function
+which is called in a protected context.
+</p>
+
+<h3 id="load"><tt>loadfile()</tt> etc. handle UTF-8 source code</h3>
+<p>
+Non-ASCII characters are handled transparently by the Lua source code parser.
+This allows the use of UTF-8 characters in identifiers and strings.
+A UTF-8 BOM is skipped at the start of the source code.
+</p>
+
+<h3 id="tostring"><tt>tostring()</tt> etc. canonicalize NaN and &plusmn;Inf</h3>
+<p>
+All number-to-string conversions consistently convert non-finite numbers
+to the same strings on all platforms. NaN results in <tt>"nan"</tt>,
+positive infinity results in <tt>"inf"</tt> and negative infinity results
+in <tt>"-inf"</tt>.
+</p>
+
+<h3 id="tonumber"><tt>tonumber()</tt> etc. use builtin string to number conversion</h3>
+<p>
+All string-to-number conversions consistently convert integer and
+floating-point inputs in decimal and hexadecimal on all platforms.
+<tt>strtod()</tt> is <em>not</em> used anymore, which avoids numerous
+problems with poor C library implementations. The builtin conversion
+function provides full precision according to the IEEE-754 standard, it
+works independently of the current locale and it supports hex floating-point
+numbers (e.g. <tt>0x1.5p-3</tt>).
+</p>
+
+<h3 id="string_dump"><tt>string.dump(f [,strip])</tt> generates portable bytecode</h3>
+<p>
+An extra argument has been added to <tt>string.dump()</tt>. If set to
+<tt>true</tt>, 'stripped' bytecode without debug information is
+generated. This speeds up later bytecode loading and reduces memory
+usage. See also the
+<a href="running.html#opt_b"><tt>-b</tt> command line option</a>.
+</p>
+<p>
+The generated bytecode is portable and can be loaded on any architecture
+that LuaJIT supports, independent of word size or endianess. However the
+bytecode compatibility versions must match. Bytecode stays compatible
+for dot releases (x.y.0 &rarr; x.y.1), but may change with major or
+minor releases (2.0 &rarr; 2.1) or between any beta release. Foreign
+bytecode (e.g. from Lua 5.1) is incompatible and cannot be loaded.
+</p>
+
+<h3 id="math_random">Enhanced PRNG for <tt>math.random()</tt></h3>
+<p>
+LuaJIT uses a Tausworthe PRNG with period 2^223 to implement
+<tt>math.random()</tt> and <tt>math.randomseed()</tt>. The quality of
+the PRNG results is much superior compared to the standard Lua
+implementation which uses the platform-specific ANSI rand().
+</p>
+<p>
+The PRNG generates the same sequences from the same seeds on all
+platforms and makes use of all bits in the seed argument.
+<tt>math.random()</tt> without arguments generates 52 pseudo-random bits
+for every call. The result is uniformly distributed between 0.0 and 1.0.
+It's correctly scaled up and rounded for <tt>math.random(n&nbsp;[,m])</tt> to
+preserve uniformity.
+</p>
+
+<h3 id="io"><tt>io.*</tt> functions handle 64&nbsp;bit file offsets</h3>
+<p>
+The file I/O functions in the standard <tt>io.*</tt> library handle
+64&nbsp;bit file offsets. In particular this means it's possible
+to open files larger than 2&nbsp;Gigabytes and to reposition or obtain
+the current file position for offsets beyond 2&nbsp;GB
+(<tt>fp:seek()</tt> method).
+</p>
+
+<h3 id="debug_meta"><tt>debug.*</tt> functions identify metamethods</h3>
+<p>
+<tt>debug.getinfo()</tt> and <tt>lua_getinfo()</tt> also return information
+about invoked metamethods. The <tt>namewhat</tt> field is set to
+<tt>"metamethod"</tt> and the <tt>name</tt> field has the name of
+the corresponding metamethod (e.g. <tt>"__index"</tt>).
+</p>
+
+<h2 id="resumable">Fully Resumable VM</h2>
+<p>
+The LuaJIT VM is fully resumable. This means you can yield from a
+coroutine even across contexts, where this would not possible with
+the standard Lua&nbsp;5.1 VM: e.g. you can yield across <tt>pcall()</tt>
+and <tt>xpcall()</tt>, across iterators and across metamethods.
+</p>
+
+<h2 id="lua52">Extensions from Lua 5.2</h2>
+<p>
+LuaJIT supports some language and library extensions from Lua&nbsp;5.2.
+Features that are unlikely to break existing code are unconditionally
+enabled:
+</p>
+<ul>
+<li><tt>goto</tt> and <tt>::labels::</tt>.</li>
+<li>Hex escapes <tt>'\x3F'</tt> and <tt>'\*'</tt> escape in strings.</li>
+<li><tt>load(string|reader [, chunkname [,mode [,env]]])</tt>.</li>
+<li><tt>loadstring()</tt> is an alias for <tt>load()</tt>.</li>
+<li><tt>loadfile(filename [,mode [,env]])</tt>.</li>
+<li><tt>math.log(x [,base])</tt>.
+<li><tt>string.rep(s, n [,sep])</tt>.
+<li><tt>string.format()</tt>: <tt>%q</tt> reversible.
+<tt>%s</tt> checks <tt>__tostring</tt>.
+<tt>%a</tt> and <tt>"%A</tt> added.</li>
+<li>String matching pattern <tt>%g</tt> added.</li>
+<li><tt>io.read("*L")</tt>.</li>
+<li><tt>io.lines()</tt> and <tt>file:lines()</tt> process
+<tt>io.read()</tt> options.</li>
+<li><tt>os.exit(status|true|false [,close])</tt>.</li>
+<li><tt>package.searchpath(name, path [, sep [, rep]])</tt>.</li>
+<li><tt>package.loadlib(name, "*")</tt>.</li>
+<li><tt>debug.getinfo()</tt> returns <tt>nparams</tt> and <tt>isvararg</tt>
+for option <tt>"u"</tt>.</li>
+<li><tt>debug.getlocal()</tt> accepts function instead of level.</li>
+<li><tt>debug.getlocal()</tt> and <tt>debug.setlocal()</tt> accept negative
+indexes for varargs.</li>
+<li><tt>debug.getupvalue()</tt> and <tt>debug.setupvalue()</tt> handle
+C&nbsp;functions.</li>
+<li><tt>debug.upvalueid()</tt> and <tt>debug.upvaluejoin()</tt>.</li>
+<li>Command line option <tt>-E</tt>.</li>
+<li>Command line checks <tt>__tostring</tt> for errors.</li>
+</ul>
+<p>
+Other features are only enabled, if LuaJIT is built with
+<tt>-DLUAJIT_ENABLE_LUA52COMPAT</tt>:
+</p>
+<ul>
+<li><tt>goto</tt> is a keyword and not a valid variable name anymore.</li>
+<li><tt>break</tt> can be placed anywhere. Empty statements (<tt>;;</tt>)
+are allowed.</li>
+<li><tt>__lt</tt>, <tt>__le</tt> are invoked for mixed types.</li>
+<li><tt>__len</tt> for tables. <tt>rawlen()</tt> library function.</li>
+<li><tt>pairs()</tt> and <tt>ipairs()</tt> check for <tt>__pairs</tt> and
+<tt>__ipairs</tt>.</li>
+<li><tt>coroutine.running()</tt> returns two results.</li>
+<li><tt>table.pack()</tt> and <tt>table.unpack()</tt>
+(same as <tt>unpack()</tt>).</li>
+<li><tt>io.write()</tt> and <tt>file:write()</tt> return file handle
+instead of <tt>true</tt>.</li>
+<li><tt>os.execute()</tt> and <tt>pipe:close()</tt> return detailed
+exit status.</li>
+<li><tt>debug.setmetatable()</tt> returns object.</li>
+<li><tt>debug.getuservalue()</tt> and <tt>debug.setuservalue()</tt>.</li>
+<li>Remove <tt>math.mod()</tt>, <tt>string.gfind()</tt>.
+</ul>
+<p>
+Note: this provides only partial compatibility with Lua 5.2 at the
+language and Lua library level. LuaJIT is API+ABI-compatible with
+Lua&nbsp;5.1, which prevents implementing features that would otherwise
+break the Lua/C API and ABI (e.g. <tt>_ENV</tt>).
+</p>
+
+<h2 id="exceptions">C++ Exception Interoperability</h2>
+<p>
+LuaJIT has built-in support for interoperating with C++&nbsp;exceptions.
+The available range of features depends on the target platform and
+the toolchain used to compile LuaJIT:
+</p>
+<table class="exc">
+<tr class="exchead">
+<td class="excplatform">Platform</td>
+<td class="exccompiler">Compiler</td>
+<td class="excinterop">Interoperability</td>
+</tr>
+<tr class="odd separate">
+<td class="excplatform">POSIX/x64, DWARF2 unwinding</td>
+<td class="exccompiler">GCC 4.3+</td>
+<td class="excinterop"><b style="color: #00a000;">Full</b></td>
+</tr>
+<tr class="even">
+<td class="excplatform">Other platforms, DWARF2 unwinding</td>
+<td class="exccompiler">GCC</td>
+<td class="excinterop"><b style="color: #c06000;">Limited</b></td>
+</tr>
+<tr class="odd">
+<td class="excplatform">Windows/x64</td>
+<td class="exccompiler">MSVC or WinSDK</td>
+<td class="excinterop"><b style="color: #00a000;">Full</b></td>
+</tr>
+<tr class="even">
+<td class="excplatform">Windows/x86</td>
+<td class="exccompiler">Any</td>
+<td class="excinterop"><b style="color: #a00000;">No</b></td>
+</tr>
+<tr class="odd">
+<td class="excplatform">Other platforms</td>
+<td class="exccompiler">Other compilers</td>
+<td class="excinterop"><b style="color: #a00000;">No</b></td>
+</tr>
+</table>
+<p>
+<b style="color: #00a000;">Full interoperability</b> means:
+</p>
+<ul>
+<li>C++&nbsp;exceptions can be caught on the Lua side with <tt>pcall()</tt>,
+<tt>lua_pcall()</tt> etc.</li>
+<li>C++&nbsp;exceptions will be converted to the generic Lua error
+<tt>"C++&nbsp;exception"</tt>, unless you use the
+<a href="ext_c_api.html#mode_wrapcfunc">C&nbsp;call wrapper</a> feature.</li>
+<li>It's safe to throw C++&nbsp;exceptions across non-protected Lua frames
+on the C&nbsp;stack. The contents of the C++&nbsp;exception object
+pass through unmodified.</li>
+<li>Lua errors can be caught on the C++ side with <tt>catch(...)</tt>.
+The corresponding Lua error message can be retrieved from the Lua stack.</li>
+<li>Throwing Lua errors across C++ frames is safe. C++ destructors
+will be called.</li>
+</ul>
+<p>
+<b style="color: #c06000;">Limited interoperability</b> means:
+</p>
+<ul>
+<li>C++&nbsp;exceptions can be caught on the Lua side with <tt>pcall()</tt>,
+<tt>lua_pcall()</tt> etc.</li>
+<li>C++&nbsp;exceptions will be converted to the generic Lua error
+<tt>"C++&nbsp;exception"</tt>, unless you use the
+<a href="ext_c_api.html#mode_wrapcfunc">C&nbsp;call wrapper</a> feature.</li>
+<li>C++&nbsp;exceptions will be caught by non-protected Lua frames and
+are rethrown as a generic Lua error. The C++&nbsp;exception object will
+be destroyed.</li>
+<li>Lua errors <b>cannot</b> be caught on the C++ side.</li>
+<li>Throwing Lua errors across C++ frames will <b>not</b> call
+C++ destructors.</li>
+</ul>
+
+<p>
+<b style="color: #a00000;">No interoperability</b> means:
+</p>
+<ul>
+<li>It's <b>not</b> safe to throw C++&nbsp;exceptions across Lua frames.</li>
+<li>C++&nbsp;exceptions <b>cannot</b> be caught on the Lua side.</li>
+<li>Lua errors <b>cannot</b> be caught on the C++ side.</li>
+<li>Throwing Lua errors across C++ frames will <b>not</b> call
+C++ destructors.</li>
+<li>Additionally, on Windows/x86 with SEH-based C++&nbsp;exceptions:
+it's <b>not</b> safe to throw a Lua error across any frames containing
+a C++ function with any try/catch construct or using variables with
+(implicit) destructors. This also applies to any functions which may be
+inlined in such a function. It doesn't matter whether <tt>lua_error()</tt>
+is called inside or outside of a try/catch or whether any object actually
+needs to be destroyed: the SEH chain is corrupted and this will eventually
+lead to the termination of the process.</li>
+</ul>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/faq.html b/lib/luajit/doc/faq.html
new file mode 100644
index 00000000..ffc2ae89
--- /dev/null
+++ b/lib/luajit/doc/faq.html
@@ -0,0 +1,184 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Frequently Asked Questions (FAQ)</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+dd { margin-left: 1.5em; }
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Frequently Asked Questions (FAQ)</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a class="current" href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<dl>
+<dt>Q: Where can I learn more about LuaJIT and Lua?</dt>
+<dd>
+<ul style="padding: 0;">
+<li>The <a href="http://luajit.org/list.html"><span class="ext">&raquo;</span>&nbsp;LuaJIT mailing list</a> focuses on topics
+related to LuaJIT.</li>
+<li>The <a href="http://wiki.luajit.org/"><span class="ext">&raquo;</span>&nbsp;LuaJIT wiki</a> gathers community
+resources about LuaJIT.</li>
+<li>News about Lua itself can be found at the
+<a href="http://www.lua.org/lua-l.html"><span class="ext">&raquo;</span>&nbsp;Lua mailing list</a>.
+The mailing list archives are worth checking out for older postings
+about LuaJIT.</li>
+<li>The <a href="http://lua.org"><span class="ext">&raquo;</span>&nbsp;main Lua.org site</a> has complete
+<a href="http://www.lua.org/docs.html"><span class="ext">&raquo;</span>&nbsp;documentation</a> of the language
+and links to books and papers about Lua.</li>
+<li>The community-managed <a href="http://lua-users.org/wiki/"><span class="ext">&raquo;</span>&nbsp;Lua Wiki</a>
+has information about diverse topics.</li>
+</ul>
+</dl>
+
+<dl>
+<dt>Q: Where can I learn more about the compiler technology used by LuaJIT?</dt>
+<dd>
+I'm planning to write more documentation about the internals of LuaJIT.
+In the meantime, please use the following Google Scholar searches
+to find relevant papers:<br>
+Search for: <a href="http://scholar.google.com/scholar?q=Trace+Compiler"><span class="ext">&raquo;</span>&nbsp;Trace Compiler</a><br>
+Search for: <a href="http://scholar.google.com/scholar?q=JIT+Compiler"><span class="ext">&raquo;</span>&nbsp;JIT Compiler</a><br>
+Search for: <a href="http://scholar.google.com/scholar?q=Dynamic+Language+Optimizations"><span class="ext">&raquo;</span>&nbsp;Dynamic Language Optimizations</a><br>
+Search for: <a href="http://scholar.google.com/scholar?q=SSA+Form"><span class="ext">&raquo;</span>&nbsp;SSA Form</a><br>
+Search for: <a href="http://scholar.google.com/scholar?q=Linear+Scan+Register+Allocation"><span class="ext">&raquo;</span>&nbsp;Linear Scan Register Allocation</a><br>
+Here is a list of the <a href="http://article.gmane.org/gmane.comp.lang.lua.general/58908"><span class="ext">&raquo;</span>&nbsp;innovative features in LuaJIT</a>.<br>
+And, you know, reading the source is of course the only way to enlightenment. :-)
+</dd>
+</dl>
+
+<dl>
+<dt>Q: Why do I get this error: "attempt to index global 'arg' (a nil value)"?<br>
+Q: My vararg functions fail after switching to LuaJIT!</dt>
+<dd>LuaJIT is compatible to the Lua 5.1 language standard. It doesn't
+support the implicit <tt>arg</tt> parameter for old-style vararg
+functions from Lua 5.0.<br>Please convert your code to the
+<a href="http://www.lua.org/manual/5.1/manual.html#2.5.9"><span class="ext">&raquo;</span>&nbsp;Lua 5.1
+vararg syntax</a>.</dd>
+</dl>
+
+<dl>
+<dt>Q: Why do I get this error: "bad FPU precision"?<br>
+<dt>Q: I get weird behavior after initializing Direct3D.<br>
+<dt>Q: Some FPU operations crash after I load a Delphi DLL.<br>
+</dt>
+<dd>
+
+DirectX/Direct3D (up to version 9) sets the x87 FPU to single-precision
+mode by default. This violates the Windows ABI and interferes with the
+operation of many programs &mdash; LuaJIT is affected, too. Please make
+sure you always use the <tt>D3DCREATE_FPU_PRESERVE</tt> flag when
+initializing Direct3D.<br>
+
+Direct3D version 10 or higher do not show this behavior anymore.
+Consider testing your application with older versions, too.<br>
+
+Similarly, the Borland/Delphi runtime modifies the FPU control word and
+enables FP exceptions. Of course this violates the Windows ABI, too.
+Please check the Delphi docs for the Set8087CW method.
+
+</dl>
+
+<dl>
+<dt>Q: Sometimes Ctrl-C fails to stop my Lua program. Why?</dt>
+<dd>The interrupt signal handler sets a Lua debug hook. But this is
+currently ignored by compiled code (this will eventually be fixed). If
+your program is running in a tight loop and never falls back to the
+interpreter, the debug hook never runs and can't throw the
+"interrupted!" error.<br> In the meantime you have to press Ctrl-C
+twice to get stop your program. That's similar to when it's stuck
+running inside a C function under the Lua interpreter.</dd>
+</dl>
+
+<dl>
+<dt>Q: Why doesn't my favorite power-patch for Lua apply against LuaJIT?</dt>
+<dd>Because it's a completely redesigned VM and has very little code
+in common with Lua anymore. Also, if the patch introduces changes to
+the Lua semantics, these would need to be reflected everywhere in the
+VM, from the interpreter up to all stages of the compiler.<br> Please
+use only standard Lua language constructs. For many common needs you
+can use source transformations or use wrapper or proxy functions.
+The compiler will happily optimize away such indirections.</dd>
+</dl>
+
+<dl>
+<dt>Q: Lua runs everywhere. Why doesn't LuaJIT support my CPU?</dt>
+<dd>Because it's a compiler &mdash; it needs to generate native
+machine code. This means the code generator must be ported to each
+architecture. And the fast interpreter is written in assembler and
+must be ported, too. This is quite an undertaking.<br>
+The <a href="install.html">install documentation</a> shows the supported
+architectures. Other architectures will follow based on sufficient user
+demand and/or sponsoring.</dd>
+</dl>
+
+<dl>
+<dt>Q: When will feature X be added? When will the next version be released?</dt>
+<dd>When it's ready.<br>
+C'mon, it's open source &mdash; I'm doing it on my own time and you're
+getting it for free. You can either contribute a patch or sponsor
+the development of certain features, if they are important to you.
+</dd>
+</dl>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
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diff --git a/lib/luajit/doc/install.html b/lib/luajit/doc/install.html
new file mode 100644
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@@ -0,0 +1,631 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Installation</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+table.compat {
+  line-height: 1.2;
+  font-size: 80%;
+}
+table.compat td {
+  border: 1px solid #bfcfff;
+  height: 2.5em;
+}
+table.compat tr.compathead td {
+  font-weight: bold;
+  border-bottom: 2px solid #bfcfff;
+}
+tr.compathead td.compatos {
+  vertical-align: top;
+}
+table.compat td.compatcpu {
+  width: 18%;
+  border-right: 2px solid #bfcfff;
+}
+td.compatos {
+  width: 21%;
+  vertical-align: middle;
+}
+td.compatno {
+  background-color: #d0d0d0;
+}
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Installation</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a class="current" href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+LuaJIT is only distributed as a source package. This page explains
+how to build and install LuaJIT with different operating systems
+and C&nbsp;compilers.
+</p>
+<p>
+For the impatient (on POSIX systems):
+</p>
+<pre class="code">
+make &amp;&amp; sudo make install
+</pre>
+<p>
+LuaJIT currently builds out-of-the box on most systems.
+Here's the compatibility matrix for the supported combinations of
+operating systems, CPUs and compilers:
+</p>
+<table class="compat">
+<tr class="compathead">
+<td class="compatcpu">CPU / OS</td>
+<td class="compatos"><a href="#posix">Linux</a> or<br><a href="#android">Android</a></td>
+<td class="compatos"><a href="#posix">*BSD, Other</a></td>
+<td class="compatos"><a href="#posix">OSX 10.4+</a> or<br><a href="#ios">iOS 3.0+</a></td>
+<td class="compatos"><a href="#windows">Windows<br>XP/Vista/7</a></td>
+</tr>
+<tr class="odd separate">
+<td class="compatcpu">x86 (32 bit)</td>
+<td class="compatos">GCC 4.x<br>GCC 3.4</td>
+<td class="compatos">GCC 4.x<br>GCC 3.4</td>
+<td class="compatos">GCC 4.x<br>GCC 3.4</td>
+<td class="compatos">MSVC, MSVC/EE<br>WinSDK<br>MinGW, Cygwin</td>
+</tr>
+<tr class="even">
+<td class="compatcpu">x64 (64 bit)</td>
+<td class="compatos">GCC 4.x</td>
+<td class="compatos">ORBIS (<a href="#ps4">PS4</a>)</td>
+<td class="compatos">GCC 4.x</td>
+<td class="compatos">MSVC + SDK v7.0<br>WinSDK v7.0</td>
+</tr>
+<tr class="odd">
+<td class="compatcpu"><a href="#cross2">ARMv5+<br>ARM9E+</a></td>
+<td class="compatos">GCC 4.2+</td>
+<td class="compatos">GCC 4.2+</td>
+<td class="compatos">GCC 4.2+</td>
+<td class="compatos compatno">&nbsp;</td>
+</tr>
+<tr class="even">
+<td class="compatcpu"><a href="#cross2">PPC</a></td>
+<td class="compatos">GCC 4.3+</td>
+<td class="compatos">GCC 4.3+<br>GCC 4.1 (<a href="#ps3">PS3</a>)</td>
+<td class="compatos compatno">&nbsp;</td>
+<td class="compatos">XEDK (<a href="#xbox360">Xbox 360</a>)</td>
+</tr>
+<tr class="odd">
+<td class="compatcpu"><a href="#cross2">PPC/e500v2</a></td>
+<td class="compatos">GCC 4.3+</td>
+<td class="compatos">GCC 4.3+</td>
+<td class="compatos compatno">&nbsp;</td>
+<td class="compatos compatno">&nbsp;</td>
+</tr>
+<tr class="even">
+<td class="compatcpu"><a href="#cross2">MIPS</a></td>
+<td class="compatos">GCC 4.3+</td>
+<td class="compatos">GCC 4.3+</td>
+<td class="compatos compatno">&nbsp;</td>
+<td class="compatos compatno">&nbsp;</td>
+</tr>
+</table>
+
+<h2>Configuring LuaJIT</h2>
+<p>
+The standard configuration should work fine for most installations.
+Usually there is no need to tweak the settings. The following files
+hold all user-configurable settings:
+</p>
+<ul>
+<li><tt>src/luaconf.h</tt> sets some configuration variables.</li>
+<li><tt>Makefile</tt> has settings for <b>installing</b> LuaJIT (POSIX
+only).</li>
+<li><tt>src/Makefile</tt> has settings for <b>compiling</b> LuaJIT
+under POSIX, MinGW or Cygwin.</li>
+<li><tt>src/msvcbuild.bat</tt> has settings for compiling LuaJIT with
+MSVC or WinSDK.</li>
+</ul>
+<p>
+Please read the instructions given in these files, before changing
+any settings.
+</p>
+
+<h2 id="posix">POSIX Systems (Linux, OSX, *BSD etc.)</h2>
+<h3>Prerequisites</h3>
+<p>
+Depending on your distribution, you may need to install a package for
+GCC, the development headers and/or a complete SDK. E.g. on a current
+Debian/Ubuntu, install <tt>libc6-dev</tt> with the package manager.
+</p>
+<p>
+Download the current source package of LuaJIT (pick the .tar.gz),
+if you haven't already done so. Move it to a directory of your choice,
+open a terminal window and change to this directory. Now unpack the archive
+and change to the newly created directory:
+</p>
+<pre class="code">
+tar zxf LuaJIT-2.0.3.tar.gz
+cd LuaJIT-2.0.3</pre>
+<h3>Building LuaJIT</h3>
+<p>
+The supplied Makefiles try to auto-detect the settings needed for your
+operating system and your compiler. They need to be run with GNU Make,
+which is probably the default on your system, anyway. Simply run:
+</p>
+<pre class="code">
+make
+</pre>
+<p>
+This always builds a native x86, x64 or PPC binary, depending on the host OS
+you're running this command on. Check the section on
+<a href="#cross">cross-compilation</a> for more options.
+</p>
+<p>
+By default, modules are only searched under the prefix <tt>/usr/local</tt>.
+You can add an extra prefix to the search paths by appending the
+<tt>PREFIX</tt> option, e.g.:
+</p>
+<pre class="code">
+make PREFIX=/home/myself/lj2
+</pre>
+<p>
+Note for OSX: if the <tt>MACOSX_DEPLOYMENT_TARGET</tt> environment
+variable is not set, then it's forced to <tt>10.4</tt>.
+</p>
+<h3>Installing LuaJIT</h3>
+<p>
+The top-level Makefile installs LuaJIT by default under
+<tt>/usr/local</tt>, i.e. the executable ends up in
+<tt>/usr/local/bin</tt> and so on. You need root privileges
+to write to this path. So, assuming sudo is installed on your system,
+run the following command and enter your sudo password:
+</p>
+<pre class="code">
+sudo make install
+</pre>
+<p>
+Otherwise specify the directory prefix as an absolute path, e.g.:
+</p>
+<pre class="code">
+make install PREFIX=/home/myself/lj2
+</pre>
+<p>
+Obviously the prefixes given during build and installation need to be the same.
+</p>
+
+<h2 id="windows">Windows Systems</h2>
+<h3>Prerequisites</h3>
+<p>
+Either install one of the open source SDKs
+(<a href="http://mingw.org/"><span class="ext">&raquo;</span>&nbsp;MinGW</a> or
+<a href="http://www.cygwin.com/"><span class="ext">&raquo;</span>&nbsp;Cygwin</a>), which come with a modified
+GCC plus the required development headers.
+</p>
+<p>
+Or install Microsoft's Visual C++ (MSVC). The freely downloadable
+<a href="http://www.microsoft.com/Express/VC/"><span class="ext">&raquo;</span>&nbsp;Express Edition</a>
+works just fine, but only contains an x86 compiler.
+</p>
+<p>
+The freely downloadable
+<a href="http://msdn.microsoft.com/en-us/windowsserver/bb980924.aspx"><span class="ext">&raquo;</span>&nbsp;Windows SDK</a>
+only comes with command line tools, but this is all you need to build LuaJIT.
+It contains x86 and x64 compilers.
+</p>
+<p>
+Next, download the source package and unpack it using an archive manager
+(e.g. the Windows Explorer) to a directory of your choice.
+</p>
+<h3>Building with MSVC</h3>
+<p>
+Open a "Visual Studio .NET Command Prompt", <tt>cd</tt> to the
+directory where you've unpacked the sources and run these commands:
+</p>
+<pre class="code">
+cd src
+msvcbuild
+</pre>
+<p>
+Then follow the installation instructions below.
+</p>
+<h3>Building with the Windows SDK</h3>
+<p>
+Open a "Windows SDK Command Shell" and select the x86 compiler:
+</p>
+<pre class="code">
+setenv /release /x86
+</pre>
+<p>
+Or select the x64 compiler:
+</p>
+<pre class="code">
+setenv /release /x64
+</pre>
+<p>
+Then <tt>cd</tt> to the directory where you've unpacked the sources
+and run these commands:
+</p>
+<pre class="code">
+cd src
+msvcbuild
+</pre>
+<p>
+Then follow the installation instructions below.
+</p>
+<h3>Building with MinGW or Cygwin</h3>
+<p>
+Open a command prompt window and make sure the MinGW or Cygwin programs
+are in your path. Then <tt>cd</tt> to the directory where
+you've unpacked the sources and run this command for MinGW:
+</p>
+<pre class="code">
+mingw32-make
+</pre>
+<p>
+Or this command for Cygwin:
+</p>
+<pre class="code">
+make
+</pre>
+<p>
+Then follow the installation instructions below.
+</p>
+<h3>Installing LuaJIT</h3>
+<p>
+Copy <tt>luajit.exe</tt> and <tt>lua51.dll</tt> (built in the <tt>src</tt>
+directory) to a newly created directory (any location is ok).
+Add <tt>lua</tt> and <tt>lua\jit</tt> directories below it and copy
+all Lua files from the <tt>src\jit</tt> directory of the distribution
+to the latter directory.
+</p>
+<p>
+There are no hardcoded
+absolute path names &mdash; all modules are loaded relative to the
+directory where <tt>luajit.exe</tt> is installed
+(see <tt>src/luaconf.h</tt>).
+</p>
+
+<h2 id="cross">Cross-compiling LuaJIT</h2>
+<p>
+The GNU Makefile-based build system allows cross-compiling on any host
+for any supported target, as long as both architectures have the same
+pointer size. If you want to cross-compile to any 32 bit target on an
+x64 OS, you need to install the multilib development package (e.g.
+<tt>libc6-dev-i386</tt> on Debian/Ubuntu) and build a 32 bit host part
+(<tt>HOST_CC="gcc -m32"</tt>).
+</p>
+<p>
+You need to specify <tt>TARGET_SYS</tt> whenever the host OS and the
+target OS differ, or you'll get assembler or linker errors. E.g. if
+you're compiling on a Windows or OSX host for embedded Linux or Android,
+you need to add <tt>TARGET_SYS=Linux</tt> to the examples below. For a
+minimal target OS, you may need to disable the built-in allocator in
+<tt>src/Makefile</tt> and use <tt>TARGET_SYS=Other</tt>. The examples
+below only show some popular targets &mdash; please check the comments
+in <tt>src/Makefile</tt> for more details.
+</p>
+<pre class="code">
+# Cross-compile to a 32 bit binary on a multilib x64 OS
+make CC="gcc -m32"
+
+# Cross-compile on Debian/Ubuntu for Windows (mingw32 package)
+make HOST_CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
+</pre>
+<p id="cross2">
+The <tt>CROSS</tt> prefix allows specifying a standard GNU cross-compile
+toolchain (Binutils, GCC and a matching libc). The prefix may vary
+depending on the <tt>--target</tt> the toolchain was built for (note the
+<tt>CROSS</tt> prefix has a trailing <tt>"-"</tt>). The examples below
+use the canonical toolchain triplets for Linux.
+</p>
+<p>
+Since there's often no easy way to detect CPU features at runtime, it's
+important to compile with the proper CPU or architecture settings. You
+can specify these when building the toolchain yourself. Or add
+<tt>-mcpu=...</tt> or <tt>-march=...</tt> to <tt>TARGET_CFLAGS</tt>. For
+ARM it's important to have the correct <tt>-mfloat-abi=...</tt> setting,
+too. Otherwise LuaJIT may not run at the full performance of your target
+CPU.
+</p>
+<pre class="code">
+# ARM soft-float
+make HOST_CC="gcc -m32" CROSS=arm-linux-gnueabi- \
+     TARGET_CFLAGS="-mfloat-abi=soft"
+
+# ARM soft-float ABI with VFP (example for Cortex-A8)
+make HOST_CC="gcc -m32" CROSS=arm-linux-gnueabi- \
+     TARGET_CFLAGS="-mcpu=cortex-a8 -mfloat-abi=softfp"
+
+# ARM hard-float ABI with VFP (armhf, requires recent toolchain)
+make HOST_CC="gcc -m32" CROSS=arm-linux-gnueabihf-
+
+# PPC
+make HOST_CC="gcc -m32" CROSS=powerpc-linux-gnu-
+# PPC/e500v2 (fast interpreter only)
+make HOST_CC="gcc -m32" CROSS=powerpc-e500v2-linux-gnuspe-
+
+# MIPS big-endian
+make HOST_CC="gcc -m32" CROSS=mips-linux-
+# MIPS little-endian
+make HOST_CC="gcc -m32" CROSS=mipsel-linux-
+</pre>
+<p>
+You can cross-compile for <b id="android">Android</b> using the <a href="http://developer.android.com/sdk/ndk/index.html"><span class="ext">&raquo;</span>&nbsp;Android NDK</a>.
+The environment variables need to match the install locations and the
+desired target platform. E.g. Android&nbsp;4.0 corresponds to ABI level&nbsp;14.
+For details check the folder <tt>docs</tt> in the NDK directory.
+</p>
+<p>
+Only a few common variations for the different CPUs, ABIs and platforms
+are listed. Please use your own judgement for which combination you want
+to build/deploy or which lowest common denominator you want to pick:
+</p>
+<pre class="code">
+# Android/ARM, armeabi (ARMv5TE soft-float), Android 2.2+ (Froyo)
+NDK=/opt/android/ndk
+NDKABI=8
+NDKVER=$NDK/toolchains/arm-linux-androideabi-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/arm-linux-androideabi-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-arm"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
+
+# Android/ARM, armeabi-v7a (ARMv7 VFP), Android 4.0+ (ICS)
+NDK=/opt/android/ndk
+NDKABI=14
+NDKVER=$NDK/toolchains/arm-linux-androideabi-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/arm-linux-androideabi-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-arm"
+NDKARCH="-march=armv7-a -mfloat-abi=softfp -Wl,--fix-cortex-a8"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF $NDKARCH"
+
+# Android/MIPS, mips (MIPS32R1 hard-float), Android 4.0+ (ICS)
+NDK=/opt/android/ndk
+NDKABI=14
+NDKVER=$NDK/toolchains/mipsel-linux-android-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/mipsel-linux-android-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-mips"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
+
+# Android/x86, x86 (i686 SSE3), Android 4.0+ (ICS)
+NDK=/opt/android/ndk
+NDKABI=14
+NDKVER=$NDK/toolchains/x86-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/i686-linux-android-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-x86"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
+</pre>
+<p>
+You can cross-compile for <b id="ios">iOS 3.0+</b> (iPhone/iPad) using the <a href="http://developer.apple.com/devcenter/ios/index.action"><span class="ext">&raquo;</span>&nbsp;iOS SDK</a>.
+The environment variables need to match the iOS SDK version:
+</p>
+<p style="font-size: 8pt;">
+Note: <b>the JIT compiler is disabled for iOS</b>, because regular iOS Apps
+are not allowed to generate code at runtime. You'll only get the performance
+of the LuaJIT interpreter on iOS. This is still faster than plain Lua, but
+much slower than the JIT compiler. Please complain to Apple, not me.
+Or use Android. :-p
+</p>
+<pre class="code">
+IXCODE=`xcode-select -print-path`
+ISDK=$IXCODE/Platforms/iPhoneOS.platform/Developer
+ISDKVER=iPhoneOS6.0.sdk
+ISDKP=$ISDK/usr/bin/
+ISDKF="-arch armv7 -isysroot $ISDK/SDKs/$ISDKVER"
+make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" \
+     TARGET_SYS=iOS
+</pre>
+<p>
+You can cross-compile for <b id="ps3">PS3</b> using the PS3&nbsp;SDK from
+a Linux host or a Windows host (requires 32&nbsp;bit MinGW (GCC) on the host,
+too). Due to restrictions on consoles, the JIT compiler is disabled and
+only the fast interpreter is built:
+</p>
+<pre class="code">
+make HOST_CC="gcc -m32" CROSS=ppu-lv2-
+</pre>
+<p>
+You can cross-compile for <b id="ps4">PS4</b> from a Windows host using
+the PS4&nbsp;SDK (ORBIS) plus 64&nbsp;bit MSVC. Due to restrictions on
+consoles, the JIT compiler is disabled and only the fast interpreter
+is built.
+</p>
+<p>
+Open a "Visual Studio .NET Command Prompt" (64&nbsp;bit host compiler),
+<tt>cd</tt> to the directory where you've unpacked the sources and run
+the following commands. This builds a static library <tt>libluajit.a</tt>,
+which can be linked against your game, just like the Lua library.
+</p>
+<pre class="code">
+cd src
+ps4build
+</pre>
+<p>
+You can cross-compile for <b id="xbox360">Xbox 360</b> using the
+Xbox&nbsp;360 SDK (MSVC + XEDK). Due to restrictions on consoles, the
+JIT compiler is disabled and only the fast interpreter is built.
+</p>
+<p>
+Open a "Visual Studio .NET Command Prompt" (32&nbsp;bit host compiler),
+<tt>cd</tt> to the directory where you've unpacked the sources and run
+the following commands. This builds a static library <tt>luajit20.lib</tt>,
+which can be linked against your game, just like the Lua library.
+</p>
+<pre class="code">
+cd src
+xedkbuild
+</pre>
+
+<h2 id="embed">Embedding LuaJIT</h2>
+<p>
+LuaJIT is API-compatible with Lua 5.1. If you've already embedded Lua
+into your application, you probably don't need to do anything to switch
+to LuaJIT, except link with a different library:
+</p>
+<ul>
+<li>It's strongly suggested to build LuaJIT separately using the supplied
+build system. Please do <em>not</em> attempt to integrate the individual
+source files into your build tree. You'll most likely get the internal build
+dependencies wrong or mess up the compiler flags. Treat LuaJIT like any
+other external library and link your application with either the dynamic
+or static library, depending on your needs.</li>
+<li>If you want to load C modules compiled for plain Lua
+with <tt>require()</tt>, you need to make sure the public symbols
+(e.g. <tt>lua_pushnumber</tt>) are exported, too:
+<ul><li>On POSIX systems you can either link to the shared library
+or link the static library into your application. In the latter case
+you'll need to export all public symbols from your main executable
+(e.g. <tt>-Wl,-E</tt> on Linux) and add the external dependencies
+(e.g. <tt>-lm -ldl</tt> on Linux).</li>
+<li>Since Windows symbols are bound to a specific DLL name, you need to
+link to the <tt>lua51.dll</tt> created by the LuaJIT build (do not rename
+the DLL). You may link LuaJIT statically on Windows only if you don't
+intend to load Lua/C modules at runtime.
+</li></ul>
+</li>
+<li>
+If you're building a 64 bit application on OSX which links directly or
+indirectly against LuaJIT, you need to link your main executable
+with these flags:
+<pre class="code">
+-pagezero_size 10000 -image_base 100000000
+</pre>
+Also, it's recommended to <tt>rebase</tt> all (self-compiled) shared libraries
+which are loaded at runtime on OSX/x64 (e.g. C extension modules for Lua).
+See: <tt>man rebase</tt>
+</li>
+</ul>
+<p>Additional hints for initializing LuaJIT using the C API functions:</p>
+<ul>
+<li>Here's a
+<a href="http://lua-users.org/wiki/SimpleLuaApiExample"><span class="ext">&raquo;</span>&nbsp;simple example</a>
+for embedding Lua or LuaJIT into your application.</li>
+<li>Make sure you use <tt>luaL_newstate</tt>. Avoid using
+<tt>lua_newstate</tt>, since this uses the (slower) default memory
+allocator from your system (no support for this on x64).</li>
+<li>Make sure you use <tt>luaL_openlibs</tt> and not the old Lua 5.0 style
+of calling <tt>luaopen_base</tt> etc. directly.</li>
+<li>To change or extend the list of standard libraries to load, copy
+<tt>src/lib_init.c</tt> to your project and modify it accordingly.
+Make sure the <tt>jit</tt> library is loaded or the JIT compiler
+will not be activated.</li>
+<li>The <tt>bit.*</tt> module for bitwise operations
+is already built-in. There's no need to statically link
+<a href="http://bitop.luajit.org/"><span class="ext">&raquo;</span>&nbsp;Lua BitOp</a> to your application.</li>
+</ul>
+
+<h2 id="distro">Hints for Distribution Maintainers</h2>
+<p>
+The LuaJIT build system has extra provisions for the needs of most
+POSIX-based distributions. If you're a package maintainer for
+a distribution, <em>please</em> make use of these features and
+avoid patching, subverting, autotoolizing or messing up the build system
+in unspeakable ways.
+</p>
+<p>
+There should be absolutely no need to patch <tt>luaconf.h</tt> or any
+of the Makefiles. And please do not hand-pick files for your packages &mdash;
+simply use whatever <tt>make install</tt> creates. There's a reason
+for all of the files <em>and</em> directories it creates.
+</p>
+<p>
+The build system uses GNU make and auto-detects most settings based on
+the host you're building it on. This should work fine for native builds,
+even when sandboxed. You may need to pass some of the following flags to
+<em>both</em> the <tt>make</tt> and the <tt>make install</tt> command lines
+for a regular distribution build:
+</p>
+<ul>
+<li><tt>PREFIX</tt> overrides the installation path and should usually
+be set to <tt>/usr</tt>. Setting this also changes the module paths and
+the paths needed to locate the shared library.</li>
+<li><tt>DESTDIR</tt> is an absolute path which allows you to install
+to a shadow tree instead of the root tree of the build system.</li>
+<li><tt>MULTILIB</tt> sets the architecture-specific library path component
+for multilib systems. The default is <tt>lib</tt>.</li>
+<li>Have a look at the top-level <tt>Makefile</tt> and <tt>src/Makefile</tt>
+for additional variables to tweak. The following variables <em>may</em> be
+overridden, but it's <em>not</em> recommended, except for special needs
+like cross-builds:
+<tt>BUILDMODE, CC, HOST_CC, STATIC_CC, DYNAMIC_CC, CFLAGS, HOST_CFLAGS,
+TARGET_CFLAGS, LDFLAGS, HOST_LDFLAGS, TARGET_LDFLAGS, TARGET_SHLDFLAGS,
+TARGET_FLAGS, LIBS, HOST_LIBS, TARGET_LIBS, CROSS, HOST_SYS, TARGET_SYS
+</tt></li>
+</ul>
+<p>
+The build system has a special target for an amalgamated build, i.e.
+<tt>make amalg</tt>. This compiles the LuaJIT core as one huge C file
+and allows GCC to generate faster and shorter code. Alas, this requires
+lots of memory during the build. This may be a problem for some users,
+that's why it's not enabled by default. But it shouldn't be a problem for
+most build farms. It's recommended that binary distributions use this
+target for their LuaJIT builds.
+</p>
+<p>
+The tl;dr version of the above:
+</p>
+<pre class="code">
+make amalg PREFIX=/usr && \
+make install PREFIX=/usr DESTDIR=/tmp/buildroot
+</pre>
+<p>
+Finally, if you encounter any difficulties, please
+<a href="contact.html">contact me</a> first, instead of releasing a broken
+package onto unsuspecting users. Because they'll usually gonna complain
+to me (the upstream) and not you (the package maintainer), anyway.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/luajit.html b/lib/luajit/doc/luajit.html
new file mode 100644
index 00000000..43af69c9
--- /dev/null
+++ b/lib/luajit/doc/luajit.html
@@ -0,0 +1,228 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>LuaJIT</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<meta name="description" content="LuaJIT is a Just-In-Time (JIT) compiler for the Lua language.">
+<style type="text/css">
+table.feature {
+  width: inherit;
+  line-height: 1.2;
+  margin: 0;
+}
+table.feature td {
+  width: 80px;
+  height: 40px;
+  vertical-align: middle;
+  text-align: center;
+  font-weight: bold;
+  border: 4px solid #e6ecff;
+  border-radius: 12px;
+}
+table.os td {
+  background: #7080d0;
+  background-image: linear-gradient(#4060c0 10%, #b0b0ff 95%);
+  background-image: -moz-linear-gradient(#4060c0 10%, #b0b0ff 95%);
+  background-image: -webkit-linear-gradient(#4060c0 10%, #b0b0ff 95%);
+  background-image: -o-linear-gradient(#4060c0 10%, #b0b0ff 95%);
+  background-image: -ms-linear-gradient(#4060c0 10%, #b0b0ff 95%);
+}
+table.os1 td {
+  color: #ffff80;
+}
+table.os2 td {
+  color: #ffa040;
+}
+table.compiler td {
+  color: #2080ff;
+  background: #62bf41;
+  background-image: linear-gradient(#62bf41 10%, #b0ffb0 95%);
+  background-image: -moz-linear-gradient(#62bf41 10%, #b0ffb0 95%);
+  background-image: -webkit-linear-gradient(#62bf41 10%, #b0ffb0 95%);
+  background-image: -o-linear-gradient(#62bf41 10%, #b0ffb0 95%);
+  background-image: -ms-linear-gradient(#62bf41 10%, #b0ffb0 95%);
+}
+table.cpu td {
+  color: #ffff00;
+  background: #cf7251;
+  background-image: linear-gradient(#bf6241 10%, #ffb0b0 95%);
+  background-image: -moz-linear-gradient(#bf6241 10%, #ffb0b0 95%);
+  background-image: -webkit-linear-gradient(#bf6241 10%, #ffb0b0 95%);
+  background-image: -o-linear-gradient(#bf6241 10%, #ffb0b0 95%);
+  background-image: -ms-linear-gradient(#bf6241 10%, #ffb0b0 95%);
+}
+table.fcompat td {
+  color: #2060e0;
+  background: #61cfcf;
+  background-image: linear-gradient(#41bfbf 10%, #b0ffff 95%);
+  background-image: -moz-linear-gradient(#41bfbf 10%, #b0ffff 95%);
+  background-image: -webkit-linear-gradient(#41bfbf 10%, #b0ffff 95%);
+  background-image: -o-linear-gradient(#41bfbf 10%, #b0ffff 95%);
+  background-image: -ms-linear-gradient(#41bfbf 10%, #b0ffff 95%);
+}
+table.stats td {
+  color: #ffffff;
+  background: #a0a0a0;
+  background-image: linear-gradient(#808080 10%, #d0d0d0 95%);
+  background-image: -moz-linear-gradient(#808080 10%, #d0d0d0 95%);
+  background-image: -webkit-linear-gradient(#808080 10%, #d0d0d0 95%);
+  background-image: -o-linear-gradient(#808080 10%, #d0d0d0 95%);
+  background-image: -ms-linear-gradient(#808080 10%, #d0d0d0 95%);
+}
+table.stats td.speed {
+  color: #ff4020;
+}
+table.stats td.kb {
+  color: #ffff80;
+  background: #808080;
+  background-image: linear-gradient(#606060 10%, #c0c0c0 95%);
+  background-image: -moz-linear-gradient(#606060 10%, #c0c0c0 95%);
+  background-image: -webkit-linear-gradient(#606060 10%, #c0c0c0 95%);
+  background-image: -o-linear-gradient(#606060 10%, #c0c0c0 95%);
+  background-image: -ms-linear-gradient(#606060 10%, #c0c0c0 95%);
+}
+table.feature small {
+  font-size: 50%;
+}
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>LuaJIT</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a class="current" href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+LuaJIT is a <b>Just-In-Time Compiler</b> (JIT) for the
+<a href="http://www.lua.org/"><span class="ext">&raquo;</span>&nbsp;Lua</a> programming language.
+Lua is a powerful, dynamic and light-weight programming language.
+It may be embedded or used as a general-purpose, stand-alone language.
+</p>
+<p>
+LuaJIT is Copyright &copy; 2005-2014 Mike Pall, released under the
+<a href="http://www.opensource.org/licenses/mit-license.php"><span class="ext">&raquo;</span>&nbsp;MIT open source license</a>.
+</p>
+<p>
+</p>
+
+<h2>Compatibility</h2>
+<table class="feature os os1">
+<tr><td>Windows</td><td>Linux</td><td>BSD</td><td>OSX</td><td>POSIX</td></tr>
+</table>
+<table class="feature os os2">
+<tr><td><span style="font-size:90%;">Embedded</span></td><td>Android</td><td>iOS</td><td>PS3</td><td>PS4</td><td>Xbox 360</td></tr>
+</table>
+<table class="feature compiler">
+<tr><td>GCC</td><td>CLANG<br>LLVM</td><td>MSVC</td></tr>
+</table>
+<table class="feature cpu">
+<tr><td>x86</td><td>x64</td><td>ARM</td><td>PPC</td><td>e500</td><td>MIPS</td></tr>
+</table>
+<table class="feature fcompat">
+<tr><td>Lua&nbsp;5.1<br>API+ABI</td><td>+&nbsp;JIT</td><td>+&nbsp;BitOp</td><td>+&nbsp;FFI</td><td>Drop-in<br>DLL/.so</td></tr>
+</table>
+
+<h2>Overview</h2>
+<table class="feature stats">
+<tr>
+<td class="speed">3x<br>-&nbsp;&nbsp;100x</td>
+<td class="kb">115&nbsp;<small>KB</small><br>VM</td>
+<td class="kb">90&nbsp;<small>KB</small><br>JIT</td>
+<td class="kloc">63&nbsp;<small>KLOC</small><br>C</td>
+<td class="kloc">24&nbsp;<small>KLOC</small><br>ASM</td>
+<td class="kloc">11&nbsp;<small>KLOC</small><br>Lua</td>
+</tr>
+</table>
+<p style="margin-top: 1em;">
+LuaJIT has been successfully used as a <b>scripting middleware</b> in
+games, appliances, network and graphics apps, numerical simulations,
+trading platforms and many other specialty applications. It scales from
+embedded devices, smartphones, desktops up to server farms. It combines
+high flexibility with <a href="http://luajit.org/performance.html"><span class="ext">&raquo;</span>&nbsp;high performance</a>
+and an unmatched <b>low memory footprint</b>.
+</p>
+<p>
+LuaJIT has been in continuous development since 2005. It's widely
+considered to be <b>one of the fastest dynamic language
+implementations</b>. It has outperformed other dynamic languages on many
+cross-language benchmarks since its first release &mdash; often by a
+substantial margin.
+</p>
+<p>
+For <b>LuaJIT 2.0</b>, the whole VM has been rewritten from the ground up
+and relentlessly optimized for performance. It combines a <b>high-speed
+interpreter</b>, written in assembler, with a <b>state-of-the-art JIT
+compiler</b>.
+</p>
+<p>
+An innovative <b>trace compiler</b> is integrated with advanced,
+SSA-based optimizations and highly tuned code generation backends.
+A substantial reduction of the overhead associated with dynamic languages
+allows it to break into the performance range traditionally reserved for
+offline, static language compilers.
+</p>
+
+<h2>More ...</h2>
+<p>
+Please select a sub-topic in the navigation bar to learn more about LuaJIT.
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/running.html b/lib/luajit/doc/running.html
new file mode 100644
index 00000000..c01c52d5
--- /dev/null
+++ b/lib/luajit/doc/running.html
@@ -0,0 +1,306 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Running LuaJIT</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+table.opt {
+  line-height: 1.2;
+}
+tr.opthead td {
+  font-weight: bold;
+}
+td.flag_name {
+  width: 4em;
+}
+td.flag_level {
+  width: 2em;
+  text-align: center;
+}
+td.param_name {
+  width: 6em;
+}
+td.param_default {
+  width: 4em;
+  text-align: right;
+}
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Running LuaJIT</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a class="current" href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+LuaJIT has only a single stand-alone executable, called <tt>luajit</tt> on
+POSIX systems or <tt>luajit.exe</tt> on Windows. It can be used to run simple
+Lua statements or whole Lua applications from the command line. It has an
+interactive mode, too.
+</p>
+
+<h2 id="options">Command Line Options</h2>
+<p>
+The <tt>luajit</tt> stand-alone executable is just a slightly modified
+version of the regular <tt>lua</tt> stand-alone executable.
+It supports the same basic options, too. <tt>luajit&nbsp;-h</tt>
+prints a short list of the available options. Please have a look at the
+<a href="http://www.lua.org/manual/5.1/manual.html#6"><span class="ext">&raquo;</span>&nbsp;Lua manual</a>
+for details.
+</p>
+<p>
+LuaJIT has some additional options:
+</p>
+
+<h3 id="opt_b"><tt>-b[options] input output</tt></h3>
+<p>
+This option saves or lists bytecode. The following additional options
+are accepted:
+</p>
+<ul>
+<li><tt>-l</tt> &mdash; Only list bytecode.</li>
+<li><tt>-s</tt> &mdash; Strip debug info (this is the default).</li>
+<li><tt>-g</tt> &mdash; Keep debug info.</li>
+<li><tt>-n name</tt> &mdash; Set module name (default: auto-detect from input name)</li>
+<li><tt>-t type</tt> &mdash; Set output file type (default: auto-detect from output name).</li>
+<li><tt>-a arch</tt> &mdash; Override architecture for object files (default: native).</li>
+<li><tt>-o os</tt> &mdash; Override OS for object files (default: native).</li>
+<li><tt>-e chunk</tt> &mdash; Use chunk string as input.</li>
+<li><tt>-</tt> (a single minus sign) &mdash; Use stdin as input and/or stdout as output.</li>
+</ul>
+<p>
+The output file type is auto-detected from the extension of the output
+file name:
+</p>
+<ul>
+<li><tt>c</tt> &mdash; C source file, exported bytecode data.</li>
+<li><tt>h</tt> &mdash; C header file, static bytecode data.</li>
+<li><tt>obj</tt> or <tt>o</tt> &mdash; Object file, exported bytecode data
+(OS- and architecture-specific).</li>
+<li><tt>raw</tt> or any other extension &mdash; Raw bytecode file (portable).
+</ul>
+<p>
+Notes:
+</p>
+<ul>
+<li>See also <a href="extensions.html#string_dump">string.dump()</a>
+for information on bytecode portability and compatibility.</li>
+<li>A file in raw bytecode format is auto-detected and can be loaded like
+any Lua source file. E.g. directly from the command line or with
+<tt>loadfile()</tt>, <tt>dofile()</tt> etc.</li>
+<li>To statically embed the bytecode of a module in your application,
+generate an object file and just link it with your application.</li>
+<li>On most ELF-based systems (e.g. Linux) you need to explicitly export the
+global symbols when linking your application, e.g. with: <tt>-Wl,-E</tt></li>
+<li><tt>require()</tt> tries to load embedded bytecode data from exported
+symbols (in <tt>*.exe</tt> or <tt>lua51.dll</tt> on Windows) and from
+shared libraries in <tt>package.cpath</tt>.</li>
+</ul>
+<p>
+Typical usage examples:
+</p>
+<pre class="code">
+luajit -b test.lua test.out                 # Save bytecode to test.out
+luajit -bg test.lua test.out                # Keep debug info
+luajit -be "print('hello world')" test.out  # Save cmdline script
+
+luajit -bl test.lua                         # List to stdout
+luajit -bl test.lua test.txt                # List to test.txt
+luajit -ble "print('hello world')"          # List cmdline script
+
+luajit -b test.lua test.obj                 # Generate object file
+# Link test.obj with your application and load it with require("test")
+</pre>
+
+<h3 id="opt_j"><tt>-j cmd[=arg[,arg...]]</tt></h3>
+<p>
+This option performs a LuaJIT control command or activates one of the
+loadable extension modules. The command is first looked up in the
+<tt>jit.*</tt> library. If no matching function is found, a module
+named <tt>jit.&lt;cmd&gt;</tt> is loaded and the <tt>start()</tt>
+function of the module is called with the specified arguments (if
+any). The space between <tt>-j</tt> and <tt>cmd</tt> is optional.
+</p>
+<p>
+Here are the available LuaJIT control commands:
+</p>
+<ul>
+<li id="j_on"><tt>-jon</tt> &mdash; Turns the JIT compiler on (default).</li>
+<li id="j_off"><tt>-joff</tt> &mdash; Turns the JIT compiler off (only use the interpreter).</li>
+<li id="j_flush"><tt>-jflush</tt> &mdash; Flushes the whole cache of compiled code.</li>
+<li id="j_v"><tt>-jv</tt> &mdash; Shows verbose information about the progress of the JIT compiler.</li>
+<li id="j_dump"><tt>-jdump</tt> &mdash; Dumps the code and structures used in various compiler stages.</li>
+</ul>
+<p>
+The <tt>-jv</tt> and <tt>-jdump</tt> commands are extension modules
+written in Lua. They are mainly used for debugging the JIT compiler
+itself. For a description of their options and output format, please
+read the comment block at the start of their source.
+They can be found in the <tt>lib</tt> directory of the source
+distribution or installed under the <tt>jit</tt> directory. By default
+this is <tt>/usr/local/share/luajit-2.0.3/jit</tt> on POSIX
+systems.
+</p>
+
+<h3 id="opt_O"><tt>-O[level]</tt><br>
+<tt>-O[+]flag</tt>&nbsp;&nbsp;&nbsp;<tt>-O-flag</tt><br>
+<tt>-Oparam=value</tt></h3>
+<p>
+This options allows fine-tuned control of the optimizations used by
+the JIT compiler. This is mainly intended for debugging LuaJIT itself.
+Please note that the JIT compiler is extremely fast (we are talking
+about the microsecond to millisecond range). Disabling optimizations
+doesn't have any visible impact on its overhead, but usually generates
+code that runs slower.
+</p>
+<p>
+The first form sets an optimization level &mdash; this enables a
+specific mix of optimization flags. <tt>-O0</tt> turns off all
+optimizations and higher numbers enable more optimizations. Omitting
+the level (i.e. just <tt>-O</tt>) sets the default optimization level,
+which is <tt>-O3</tt> in the current version.
+</p>
+<p>
+The second form adds or removes individual optimization flags.
+The third form sets a parameter for the VM or the JIT compiler
+to a specific value.
+</p>
+<p>
+You can either use this option multiple times (like <tt>-Ocse
+-O-dce -Ohotloop=10</tt>) or separate several settings with a comma
+(like <tt>-O+cse,-dce,hotloop=10</tt>). The settings are applied from
+left to right and later settings override earlier ones. You can freely
+mix the three forms, but note that setting an optimization level
+overrides all earlier flags.
+</p>
+<p>
+Here are the available flags and at what optimization levels they
+are enabled:
+</p>
+<table class="opt">
+<tr class="opthead">
+<td class="flag_name">Flag</td>
+<td class="flag_level">-O1</td>
+<td class="flag_level">-O2</td>
+<td class="flag_level">-O3</td>
+<td class="flag_desc">&nbsp;</td>
+</tr>
+<tr class="odd separate">
+<td class="flag_name">fold</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_desc">Constant Folding, Simplifications and Reassociation</td></tr>
+<tr class="even">
+<td class="flag_name">cse</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_desc">Common-Subexpression Elimination</td></tr>
+<tr class="odd">
+<td class="flag_name">dce</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_desc">Dead-Code Elimination</td></tr>
+<tr class="even">
+<td class="flag_name">narrow</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_desc">Narrowing of numbers to integers</td></tr>
+<tr class="odd">
+<td class="flag_name">loop</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_level">&bull;</td><td class="flag_desc">Loop Optimizations (code hoisting)</td></tr>
+<tr class="even">
+<td class="flag_name">fwd</td><td class="flag_level">&nbsp;</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_desc">Load Forwarding (L2L) and Store Forwarding (S2L)</td></tr>
+<tr class="odd">
+<td class="flag_name">dse</td><td class="flag_level">&nbsp;</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_desc">Dead-Store Elimination</td></tr>
+<tr class="even">
+<td class="flag_name">abc</td><td class="flag_level">&nbsp;</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_desc">Array Bounds Check Elimination</td></tr>
+<tr class="odd">
+<td class="flag_name">sink</td><td class="flag_level">&nbsp;</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_desc">Allocation/Store Sinking</td></tr>
+<tr class="even">
+<td class="flag_name">fuse</td><td class="flag_level">&nbsp;</td><td class="flag_level">&nbsp;</td><td class="flag_level">&bull;</td><td class="flag_desc">Fusion of operands into instructions</td></tr>
+</table>
+<p>
+Here are the parameters and their default settings:
+</p>
+<table class="opt">
+<tr class="opthead">
+<td class="param_name">Parameter</td>
+<td class="param_default">Default</td>
+<td class="param_desc">&nbsp;</td>
+</tr>
+<tr class="odd separate">
+<td class="param_name">maxtrace</td><td class="param_default">1000</td><td class="param_desc">Max. number of traces in the cache</td></tr>
+<tr class="even">
+<td class="param_name">maxrecord</td><td class="param_default">4000</td><td class="param_desc">Max. number of recorded IR instructions</td></tr>
+<tr class="odd">
+<td class="param_name">maxirconst</td><td class="param_default">500</td><td class="param_desc">Max. number of IR constants of a trace</td></tr>
+<tr class="even">
+<td class="param_name">maxside</td><td class="param_default">100</td><td class="param_desc">Max. number of side traces of a root trace</td></tr>
+<tr class="odd">
+<td class="param_name">maxsnap</td><td class="param_default">500</td><td class="param_desc">Max. number of snapshots for a trace</td></tr>
+<tr class="even separate">
+<td class="param_name">hotloop</td><td class="param_default">56</td><td class="param_desc">Number of iterations to detect a hot loop or hot call</td></tr>
+<tr class="odd">
+<td class="param_name">hotexit</td><td class="param_default">10</td><td class="param_desc">Number of taken exits to start a side trace</td></tr>
+<tr class="even">
+<td class="param_name">tryside</td><td class="param_default">4</td><td class="param_desc">Number of attempts to compile a side trace</td></tr>
+<tr class="odd separate">
+<td class="param_name">instunroll</td><td class="param_default">4</td><td class="param_desc">Max. unroll factor for instable loops</td></tr>
+<tr class="even">
+<td class="param_name">loopunroll</td><td class="param_default">15</td><td class="param_desc">Max. unroll factor for loop ops in side traces</td></tr>
+<tr class="odd">
+<td class="param_name">callunroll</td><td class="param_default">3</td><td class="param_desc">Max. unroll factor for pseudo-recursive calls</td></tr>
+<tr class="even">
+<td class="param_name">recunroll</td><td class="param_default">2</td><td class="param_desc">Min. unroll factor for true recursion</td></tr>
+<tr class="odd separate">
+<td class="param_name">sizemcode</td><td class="param_default">32</td><td class="param_desc">Size of each machine code area in KBytes (Windows: 64K)</td></tr>
+<tr class="even">
+<td class="param_name">maxmcode</td><td class="param_default">512</td><td class="param_desc">Max. total size of all machine code areas in KBytes</td></tr>
+</table>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/doc/status.html b/lib/luajit/doc/status.html
new file mode 100644
index 00000000..ddcaed33
--- /dev/null
+++ b/lib/luajit/doc/status.html
@@ -0,0 +1,125 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<title>Status &amp; Roadmap</title>
+<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+<meta name="Author" content="Mike Pall">
+<meta name="Copyright" content="Copyright (C) 2005-2014, Mike Pall">
+<meta name="Language" content="en">
+<link rel="stylesheet" type="text/css" href="bluequad.css" media="screen">
+<link rel="stylesheet" type="text/css" href="bluequad-print.css" media="print">
+<style type="text/css">
+ul li { padding-bottom: 0.3em; }
+</style>
+</head>
+<body>
+<div id="site">
+<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
+</div>
+<div id="head">
+<h1>Status &amp; Roadmap</h1>
+</div>
+<div id="nav">
+<ul><li>
+<a href="luajit.html">LuaJIT</a>
+<ul><li>
+<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="install.html">Installation</a>
+</li><li>
+<a href="running.html">Running</a>
+</li></ul>
+</li><li>
+<a href="extensions.html">Extensions</a>
+<ul><li>
+<a href="ext_ffi.html">FFI Library</a>
+<ul><li>
+<a href="ext_ffi_tutorial.html">FFI Tutorial</a>
+</li><li>
+<a href="ext_ffi_api.html">ffi.* API</a>
+</li><li>
+<a href="ext_ffi_semantics.html">FFI Semantics</a>
+</li></ul>
+</li><li>
+<a href="ext_jit.html">jit.* Library</a>
+</li><li>
+<a href="ext_c_api.html">Lua/C API</a>
+</li></ul>
+</li><li>
+<a class="current" href="status.html">Status</a>
+<ul><li>
+<a href="changes.html">Changes</a>
+</li></ul>
+</li><li>
+<a href="faq.html">FAQ</a>
+</li><li>
+<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
+</li><li>
+<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
+</li></ul>
+</div>
+<div id="main">
+<p>
+<span style="color: #0000c0;">LuaJIT&nbsp;2.0</span> is the current
+<span style="color: #0000c0;">stable branch</span>. This branch is in
+feature-freeze &mdash; new features will only be added to LuaJIT&nbsp;2.1.
+</p>
+
+<h2>Current Status</h2>
+<p>
+LuaJIT ought to run all Lua&nbsp;5.1-compatible source code just fine.
+It's considered a serious bug if the VM crashes or produces unexpected
+results &mdash; please report this.
+</p>
+<p>
+Known incompatibilities and issues in LuaJIT&nbsp;2.0:
+</p>
+<ul>
+<li>
+There are some differences in <b>implementation-defined</b> behavior.
+These either have a good reason, are arbitrary design choices
+or are due to quirks in the VM. The latter cases may get fixed if a
+demonstrable need is shown.
+</li>
+<li>
+The Lua <b>debug API</b> is missing a couple of features (return
+hooks for non-Lua functions) and shows slightly different behavior
+in LuaJIT (no per-coroutine hooks, no tail call counting).
+</li>
+<li>
+Some checks are missing in the JIT-compiled code for obscure situations
+with <b>open upvalues aliasing</b> one of the SSA slots later on (or
+vice versa). Bonus points, if you can find a real world test case for
+this.
+</li>
+<li>
+Currently some <b>out-of-memory</b> errors from <b>on-trace code</b> are not
+handled correctly. The error may fall through an on-trace
+<tt>pcall</tt> or it may be passed on to the function set with
+<tt>lua_atpanic</tt> on x64. This issue will be fixed with the new
+garbage collector.
+</li>
+</ul>
+
+<h2>Roadmap</h2>
+<p>
+Please refer to the
+<a href="http://www.freelists.org/post/luajit/LuaJIT-Roadmap-20122013"><span class="ext">&raquo;</span>&nbsp;LuaJIT Roadmap 2012/2013</a> and an
+<a href="http://www.freelists.org/post/luajit/LuaJIT-Roadmap-20122013-UPDATE"><span class="ext">&raquo;</span>&nbsp;update on release planning</a> for details.
+</p>
+<p>
+</p>
+<br class="flush">
+</div>
+<div id="foot">
+<hr class="hide">
+Copyright &copy; 2005-2014 Mike Pall
+<span class="noprint">
+&middot;
+<a href="contact.html">Contact</a>
+</span>
+</div>
+</body>
+</html>
diff --git a/lib/luajit/dynasm/dasm_arm.h b/lib/luajit/dynasm/dasm_arm.h
new file mode 100644
index 00000000..435bbf5e
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_arm.h
@@ -0,0 +1,456 @@
+/*
+** DynASM ARM encoding engine.
+** Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+** Released under the MIT license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH		"arm"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d)	0
+#endif
+
+/* Action definitions. */
+enum {
+  DASM_STOP, DASM_SECTION, DASM_ESC, DASM_REL_EXT,
+  /* The following actions need a buffer position. */
+  DASM_ALIGN, DASM_REL_LG, DASM_LABEL_LG,
+  /* The following actions also have an argument. */
+  DASM_REL_PC, DASM_LABEL_PC,
+  DASM_IMM, DASM_IMM12, DASM_IMM16, DASM_IMML8, DASM_IMML12, DASM_IMMV8,
+  DASM__MAX
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS		25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK		0x00000000
+#define DASM_S_NOMEM		0x01000000
+#define DASM_S_PHASE		0x02000000
+#define DASM_S_MATCH_SEC	0x03000000
+#define DASM_S_RANGE_I		0x11000000
+#define DASM_S_RANGE_SEC	0x12000000
+#define DASM_S_RANGE_LG		0x13000000
+#define DASM_S_RANGE_PC		0x14000000
+#define DASM_S_RANGE_REL	0x15000000
+#define DASM_S_UNDEF_LG		0x21000000
+#define DASM_S_UNDEF_PC		0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos)	((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos)	((pos)&0xff000000)
+#define DASM_SEC2POS(sec)	((sec)<<24)
+#define DASM_POS2SEC(pos)	((pos)>>24)
+#define DASM_POS2PTR(D, pos)	(D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned int *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+  int *rbuf;		/* Biased buffer pointer (negative section bias). */
+  int *buf;		/* True buffer pointer. */
+  size_t bsize;		/* Buffer size in bytes. */
+  int pos;		/* Biased buffer position. */
+  int epos;		/* End of biased buffer position - max single put. */
+  int ofs;		/* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+  size_t psize;			/* Allocated size of this structure. */
+  dasm_ActList actionlist;	/* Current actionlist pointer. */
+  int *lglabels;		/* Local/global chain/pos ptrs. */
+  size_t lgsize;
+  int *pclabels;		/* PC label chains/pos ptrs. */
+  size_t pcsize;
+  void **globals;		/* Array of globals (bias -10). */
+  dasm_Section *section;	/* Pointer to active section. */
+  size_t codesize;		/* Total size of all code sections. */
+  int maxsection;		/* 0 <= sectionidx < maxsection. */
+  int status;			/* Status code. */
+  dasm_Section sections[1];	/* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms)	(sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+  dasm_State *D;
+  size_t psz = 0;
+  int i;
+  Dst_REF = NULL;
+  DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+  D = Dst_REF;
+  D->psize = psz;
+  D->lglabels = NULL;
+  D->lgsize = 0;
+  D->pclabels = NULL;
+  D->pcsize = 0;
+  D->globals = NULL;
+  D->maxsection = maxsection;
+  for (i = 0; i < maxsection; i++) {
+    D->sections[i].buf = NULL;  /* Need this for pass3. */
+    D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+    D->sections[i].bsize = 0;
+    D->sections[i].epos = 0;  /* Wrong, but is recalculated after resize. */
+  }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  for (i = 0; i < D->maxsection; i++)
+    if (D->sections[i].buf)
+      DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+  if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+  if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+  DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+  dasm_State *D = Dst_REF;
+  D->globals = gl - 10;  /* Negative bias to compensate for locals. */
+  DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+  dasm_State *D = Dst_REF;
+  size_t osz = D->pcsize;
+  DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+  memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  D->actionlist = (dasm_ActList)actionlist;
+  D->status = DASM_S_OK;
+  D->section = &D->sections[0];
+  memset((void *)D->lglabels, 0, D->lgsize);
+  if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+  for (i = 0; i < D->maxsection; i++) {
+    D->sections[i].pos = DASM_SEC2POS(i);
+    D->sections[i].ofs = 0;
+  }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) { \
+    D->status = DASM_S_##st|(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+  do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+    D->status = DASM_S_RANGE_##st|(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st)	((void)0)
+#define CKPL(kind, st)	((void)0)
+#endif
+
+static int dasm_imm12(unsigned int n)
+{
+  int i;
+  for (i = 0; i < 16; i++, n = (n << 2) | (n >> 30))
+    if (n <= 255) return (int)(n + (i << 8));
+  return -1;
+}
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+  va_list ap;
+  dasm_State *D = Dst_REF;
+  dasm_ActList p = D->actionlist + start;
+  dasm_Section *sec = D->section;
+  int pos = sec->pos, ofs = sec->ofs;
+  int *b;
+
+  if (pos >= sec->epos) {
+    DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+      sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+    sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+    sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+  }
+
+  b = sec->rbuf;
+  b[pos++] = start;
+
+  va_start(ap, start);
+  while (1) {
+    unsigned int ins = *p++;
+    unsigned int action = (ins >> 16);
+    if (action >= DASM__MAX) {
+      ofs += 4;
+    } else {
+      int *pl, n = action >= DASM_REL_PC ? va_arg(ap, int) : 0;
+      switch (action) {
+      case DASM_STOP: goto stop;
+      case DASM_SECTION:
+	n = (ins & 255); CK(n < D->maxsection, RANGE_SEC);
+	D->section = &D->sections[n]; goto stop;
+      case DASM_ESC: p++; ofs += 4; break;
+      case DASM_REL_EXT: break;
+      case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
+      case DASM_REL_LG:
+	n = (ins & 2047) - 10; pl = D->lglabels + n;
+	/* Bkwd rel or global. */
+	if (n >= 0) { CK(n>=10||*pl<0, RANGE_LG); CKPL(lg, LG); goto putrel; }
+	pl += 10; n = *pl;
+	if (n < 0) n = 0;  /* Start new chain for fwd rel if label exists. */
+	goto linkrel;
+      case DASM_REL_PC:
+	pl = D->pclabels + n; CKPL(pc, PC);
+      putrel:
+	n = *pl;
+	if (n < 0) {  /* Label exists. Get label pos and store it. */
+	  b[pos] = -n;
+	} else {
+      linkrel:
+	  b[pos] = n;  /* Else link to rel chain, anchored at label. */
+	  *pl = pos;
+	}
+	pos++;
+	break;
+      case DASM_LABEL_LG:
+	pl = D->lglabels + (ins & 2047) - 10; CKPL(lg, LG); goto putlabel;
+      case DASM_LABEL_PC:
+	pl = D->pclabels + n; CKPL(pc, PC);
+      putlabel:
+	n = *pl;  /* n > 0: Collapse rel chain and replace with label pos. */
+	while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos;
+	}
+	*pl = -pos;  /* Label exists now. */
+	b[pos++] = ofs;  /* Store pass1 offset estimate. */
+	break;
+      case DASM_IMM:
+      case DASM_IMM16:
+#ifdef DASM_CHECKS
+	CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
+	if ((ins & 0x8000))
+	  CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
+	else
+	  CK((n>>((ins>>5)&31)) == 0, RANGE_I);
+#endif
+	b[pos++] = n;
+	break;
+      case DASM_IMMV8:
+	CK((n & 3) == 0, RANGE_I);
+	n >>= 2;
+      case DASM_IMML8:
+      case DASM_IMML12:
+	CK(n >= 0 ? ((n>>((ins>>5)&31)) == 0) :
+		    (((-n)>>((ins>>5)&31)) == 0), RANGE_I);
+	b[pos++] = n;
+	break;
+      case DASM_IMM12:
+	CK(dasm_imm12((unsigned int)n) != -1, RANGE_I);
+	b[pos++] = n;
+	break;
+      }
+    }
+  }
+stop:
+  va_end(ap);
+  sec->pos = pos;
+  sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+  dasm_State *D = Dst_REF;
+  int secnum;
+  int ofs = 0;
+
+#ifdef DASM_CHECKS
+  *szp = 0;
+  if (D->status != DASM_S_OK) return D->status;
+  {
+    int pc;
+    for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+      if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+  }
+#endif
+
+  { /* Handle globals not defined in this translation unit. */
+    int idx;
+    for (idx = 20; idx*sizeof(int) < D->lgsize; idx++) {
+      int n = D->lglabels[idx];
+      /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+      while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+    }
+  }
+
+  /* Combine all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->rbuf;
+    int pos = DASM_SEC2POS(secnum);
+    int lastpos = sec->pos;
+
+    while (pos != lastpos) {
+      dasm_ActList p = D->actionlist + b[pos++];
+      while (1) {
+	unsigned int ins = *p++;
+	unsigned int action = (ins >> 16);
+	switch (action) {
+	case DASM_STOP: case DASM_SECTION: goto stop;
+	case DASM_ESC: p++; break;
+	case DASM_REL_EXT: break;
+	case DASM_ALIGN: ofs -= (b[pos++] + ofs) & (ins & 255); break;
+	case DASM_REL_LG: case DASM_REL_PC: pos++; break;
+	case DASM_LABEL_LG: case DASM_LABEL_PC: b[pos++] += ofs; break;
+	case DASM_IMM: case DASM_IMM12: case DASM_IMM16:
+	case DASM_IMML8: case DASM_IMML12: case DASM_IMMV8: pos++; break;
+	}
+      }
+      stop: (void)0;
+    }
+    ofs += sec->ofs;  /* Next section starts right after current section. */
+  }
+
+  D->codesize = ofs;  /* Total size of all code sections */
+  *szp = ofs;
+  return DASM_S_OK;
+}
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) return DASM_S_##st|(p-D->actionlist-1); } while (0)
+#else
+#define CK(x, st)	((void)0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+  dasm_State *D = Dst_REF;
+  char *base = (char *)buffer;
+  unsigned int *cp = (unsigned int *)buffer;
+  int secnum;
+
+  /* Encode all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->buf;
+    int *endb = sec->rbuf + sec->pos;
+
+    while (b != endb) {
+      dasm_ActList p = D->actionlist + *b++;
+      while (1) {
+	unsigned int ins = *p++;
+	unsigned int action = (ins >> 16);
+	int n = (action >= DASM_ALIGN && action < DASM__MAX) ? *b++ : 0;
+	switch (action) {
+	case DASM_STOP: case DASM_SECTION: goto stop;
+	case DASM_ESC: *cp++ = *p++; break;
+	case DASM_REL_EXT:
+	  n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins&2047), !(ins&2048));
+	  goto patchrel;
+	case DASM_ALIGN:
+	  ins &= 255; while ((((char *)cp - base) & ins)) *cp++ = 0xe1a00000;
+	  break;
+	case DASM_REL_LG:
+	  CK(n >= 0, UNDEF_LG);
+	case DASM_REL_PC:
+	  CK(n >= 0, UNDEF_PC);
+	  n = *DASM_POS2PTR(D, n) - (int)((char *)cp - base) - 4;
+	patchrel:
+	  if ((ins & 0x800) == 0) {
+	    CK((n & 3) == 0 && ((n+0x02000000) >> 26) == 0, RANGE_REL);
+	    cp[-1] |= ((n >> 2) & 0x00ffffff);
+	  } else if ((ins & 0x1000)) {
+	    CK((n & 3) == 0 && -256 <= n && n <= 256, RANGE_REL);
+	    goto patchimml8;
+	  } else if ((ins & 0x2000) == 0) {
+	    CK((n & 3) == 0 && -4096 <= n && n <= 4096, RANGE_REL);
+	    goto patchimml;
+	  } else {
+	    CK((n & 3) == 0 && -1020 <= n && n <= 1020, RANGE_REL);
+	    n >>= 2;
+	    goto patchimml;
+	  }
+	  break;
+	case DASM_LABEL_LG:
+	  ins &= 2047; if (ins >= 20) D->globals[ins-10] = (void *)(base + n);
+	  break;
+	case DASM_LABEL_PC: break;
+	case DASM_IMM:
+	  cp[-1] |= ((n>>((ins>>10)&31)) & ((1<<((ins>>5)&31))-1)) << (ins&31);
+	  break;
+	case DASM_IMM12:
+	  cp[-1] |= dasm_imm12((unsigned int)n);
+	  break;
+	case DASM_IMM16:
+	  cp[-1] |= ((n & 0xf000) << 4) | (n & 0x0fff);
+	  break;
+	case DASM_IMML8: patchimml8:
+	  cp[-1] |= n >= 0 ? (0x00800000 | (n & 0x0f) | ((n & 0xf0) << 4)) :
+			     ((-n & 0x0f) | ((-n & 0xf0) << 4));
+	  break;
+	case DASM_IMML12: case DASM_IMMV8: patchimml:
+	  cp[-1] |= n >= 0 ? (0x00800000 | n) : (-n);
+	  break;
+	default: *cp++ = ins; break;
+	}
+      }
+      stop: (void)0;
+    }
+  }
+
+  if (base + D->codesize != (char *)cp)  /* Check for phase errors. */
+    return DASM_S_PHASE;
+  return DASM_S_OK;
+}
+#undef CK
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+  dasm_State *D = Dst_REF;
+  if (pc*sizeof(int) < D->pcsize) {
+    int pos = D->pclabels[pc];
+    if (pos < 0) return *DASM_POS2PTR(D, -pos);
+    if (pos > 0) return -1;  /* Undefined. */
+  }
+  return -2;  /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+  dasm_State *D = Dst_REF;
+  if (D->status == DASM_S_OK) {
+    int i;
+    for (i = 1; i <= 9; i++) {
+      if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_LG|i; break; }
+      D->lglabels[i] = 0;
+    }
+  }
+  if (D->status == DASM_S_OK && secmatch >= 0 &&
+      D->section != &D->sections[secmatch])
+    D->status = DASM_S_MATCH_SEC|(D->section-D->sections);
+  return D->status;
+}
+#endif
+
diff --git a/lib/luajit/dynasm/dasm_arm.lua b/lib/luajit/dynasm/dasm_arm.lua
new file mode 100644
index 00000000..b3a8827e
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_arm.lua
@@ -0,0 +1,1122 @@
+------------------------------------------------------------------------------
+-- DynASM ARM module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Module information:
+local _info = {
+  arch =	"arm",
+  description =	"DynASM ARM module",
+  version =	"1.3.0",
+  vernum =	 10300,
+  release =	"2011-05-05",
+  author =	"Mike Pall",
+  license =	"MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, setmetatable, rawget = assert, setmetatable, rawget
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local match, gmatch, gsub = _s.match, _s.gmatch, _s.gsub
+local concat, sort, insert = table.concat, table.sort, table.insert
+local bit = bit or require("bit")
+local band, shl, shr, sar = bit.band, bit.lshift, bit.rshift, bit.arshift
+local ror, tohex = bit.ror, bit.tohex
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+  "STOP", "SECTION", "ESC", "REL_EXT",
+  "ALIGN", "REL_LG", "LABEL_LG",
+  "REL_PC", "LABEL_PC", "IMM", "IMM12", "IMM16", "IMML8", "IMML12", "IMMV8",
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number.
+local map_action = {}
+for n,name in ipairs(action_names) do
+  map_action[name] = n-1
+end
+
+-- Action list buffer.
+local actlist = {}
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+  out:write("DynASM encoding engine action codes:\n")
+  for n,name in ipairs(action_names) do
+    local num = map_action[name]
+    out:write(format("  %-10s %02X  %d\n", name, num, num))
+  end
+  out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+  local nn = #actlist
+  if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
+  out:write("static const unsigned int ", name, "[", nn, "] = {\n")
+  for i = 1,nn-1 do
+    assert(out:write("0x", tohex(actlist[i]), ",\n"))
+  end
+  assert(out:write("0x", tohex(actlist[nn]), "\n};\n\n"))
+end
+
+------------------------------------------------------------------------------
+
+-- Add word to action list.
+local function wputxw(n)
+  assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+  actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, val, a, num)
+  local w = assert(map_action[action], "bad action name `"..action.."'")
+  wputxw(w * 0x10000 + (val or 0))
+  if a then actargs[#actargs+1] = a end
+  if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+  if #actlist == actargs[1] then return end -- Nothing to flush.
+  if not term then waction("STOP") end -- Terminate action list.
+  wline(format("dasm_put(Dst, %s);", concat(actargs, ", ")), true)
+  actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+  secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped word.
+local function wputw(n)
+  if n <= 0x000fffff then waction("ESC") end
+  wputxw(n)
+end
+
+-- Reserve position for word.
+local function wpos()
+  local pos = #actlist+1
+  actlist[pos] = ""
+  return pos
+end
+
+-- Store word to reserved position.
+local function wputpos(pos, n)
+  assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+  if n <= 0x000fffff then
+    insert(actlist, pos+1, n)
+    n = map_action.ESC * 0x10000
+  end
+  actlist[pos] = n
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 20
+local map_global = setmetatable({}, { __index = function(t, name)
+  if not match(name, "^[%a_][%w_]*$") then werror("bad global label") end
+  local n = next_global
+  if n > 2047 then werror("too many global labels") end
+  next_global = n + 1
+  t[name] = n
+  return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("Global labels:\n")
+  for i=20,next_global-1 do
+    out:write(format("  %s\n", t[i]))
+  end
+  out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("enum {\n")
+  for i=20,next_global-1 do
+    out:write("  ", prefix, t[i], ",\n")
+  end
+  out:write("  ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=20,next_global-1 do
+    out:write("  \"", t[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = 0
+local map_extern_ = {}
+local map_extern = setmetatable({}, { __index = function(t, name)
+  -- No restrictions on the name for now.
+  local n = next_extern
+  if n > 2047 then werror("too many extern labels") end
+  next_extern = n + 1
+  t[name] = n
+  map_extern_[n] = name
+  return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+  out:write("Extern labels:\n")
+  for i=0,next_extern-1 do
+    out:write(format("  %s\n", map_extern_[i]))
+  end
+  out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=0,next_extern-1 do
+    out:write("  \"", map_extern_[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+
+-- Ext. register name -> int. name.
+local map_archdef = { sp = "r13", lr = "r14", pc = "r15", }
+
+-- Int. register name -> ext. name.
+local map_reg_rev = { r13 = "sp", r14 = "lr", r15 = "pc", }
+
+local map_type = {}		-- Type name -> { ctype, reg }
+local ctypenum = 0		-- Type number (for Dt... macros).
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+  return map_reg_rev[s] or s
+end
+
+local map_shift = { lsl = 0, lsr = 1, asr = 2, ror = 3, }
+
+local map_cond = {
+  eq = 0, ne = 1, cs = 2, cc = 3, mi = 4, pl = 5, vs = 6, vc = 7,
+  hi = 8, ls = 9, ge = 10, lt = 11, gt = 12, le = 13, al = 14,
+  hs = 2, lo = 3,
+}
+
+------------------------------------------------------------------------------
+
+-- Template strings for ARM instructions.
+local map_op = {
+  -- Basic data processing instructions.
+  and_3 = "e0000000DNPs",
+  eor_3 = "e0200000DNPs",
+  sub_3 = "e0400000DNPs",
+  rsb_3 = "e0600000DNPs",
+  add_3 = "e0800000DNPs",
+  adc_3 = "e0a00000DNPs",
+  sbc_3 = "e0c00000DNPs",
+  rsc_3 = "e0e00000DNPs",
+  tst_2 = "e1100000NP",
+  teq_2 = "e1300000NP",
+  cmp_2 = "e1500000NP",
+  cmn_2 = "e1700000NP",
+  orr_3 = "e1800000DNPs",
+  mov_2 = "e1a00000DPs",
+  bic_3 = "e1c00000DNPs",
+  mvn_2 = "e1e00000DPs",
+
+  and_4 = "e0000000DNMps",
+  eor_4 = "e0200000DNMps",
+  sub_4 = "e0400000DNMps",
+  rsb_4 = "e0600000DNMps",
+  add_4 = "e0800000DNMps",
+  adc_4 = "e0a00000DNMps",
+  sbc_4 = "e0c00000DNMps",
+  rsc_4 = "e0e00000DNMps",
+  tst_3 = "e1100000NMp",
+  teq_3 = "e1300000NMp",
+  cmp_3 = "e1500000NMp",
+  cmn_3 = "e1700000NMp",
+  orr_4 = "e1800000DNMps",
+  mov_3 = "e1a00000DMps",
+  bic_4 = "e1c00000DNMps",
+  mvn_3 = "e1e00000DMps",
+
+  lsl_3 = "e1a00000DMws",
+  lsr_3 = "e1a00020DMws",
+  asr_3 = "e1a00040DMws",
+  ror_3 = "e1a00060DMws",
+  rrx_2 = "e1a00060DMs",
+
+  -- Multiply and multiply-accumulate.
+  mul_3 = "e0000090NMSs",
+  mla_4 = "e0200090NMSDs",
+  umaal_4 = "e0400090DNMSs",	-- v6
+  mls_4 = "e0600090DNMSs",	-- v6T2
+  umull_4 = "e0800090DNMSs",
+  umlal_4 = "e0a00090DNMSs",
+  smull_4 = "e0c00090DNMSs",
+  smlal_4 = "e0e00090DNMSs",
+
+  -- Halfword multiply and multiply-accumulate.
+  smlabb_4 = "e1000080NMSD",	-- v5TE
+  smlatb_4 = "e10000a0NMSD",	-- v5TE
+  smlabt_4 = "e10000c0NMSD",	-- v5TE
+  smlatt_4 = "e10000e0NMSD",	-- v5TE
+  smlawb_4 = "e1200080NMSD",	-- v5TE
+  smulwb_3 = "e12000a0NMS",	-- v5TE
+  smlawt_4 = "e12000c0NMSD",	-- v5TE
+  smulwt_3 = "e12000e0NMS",	-- v5TE
+  smlalbb_4 = "e1400080NMSD",	-- v5TE
+  smlaltb_4 = "e14000a0NMSD",	-- v5TE
+  smlalbt_4 = "e14000c0NMSD",	-- v5TE
+  smlaltt_4 = "e14000e0NMSD",	-- v5TE
+  smulbb_3 = "e1600080NMS",	-- v5TE
+  smultb_3 = "e16000a0NMS",	-- v5TE
+  smulbt_3 = "e16000c0NMS",	-- v5TE
+  smultt_3 = "e16000e0NMS",	-- v5TE
+
+  -- Miscellaneous data processing instructions.
+  clz_2 = "e16f0f10DM", -- v5T
+  rev_2 = "e6bf0f30DM", -- v6
+  rev16_2 = "e6bf0fb0DM", -- v6
+  revsh_2 = "e6ff0fb0DM", -- v6
+  sel_3 = "e6800fb0DNM", -- v6
+  usad8_3 = "e780f010NMS", -- v6
+  usada8_4 = "e7800010NMSD", -- v6
+  rbit_2 = "e6ff0f30DM", -- v6T2
+  movw_2 = "e3000000DW", -- v6T2
+  movt_2 = "e3400000DW", -- v6T2
+  -- Note: the X encodes width-1, not width.
+  sbfx_4 = "e7a00050DMvX", -- v6T2
+  ubfx_4 = "e7e00050DMvX", -- v6T2
+  -- Note: the X encodes the msb field, not the width.
+  bfc_3 = "e7c0001fDvX", -- v6T2
+  bfi_4 = "e7c00010DMvX", -- v6T2
+
+  -- Packing and unpacking instructions.
+  pkhbt_3 = "e6800010DNM", pkhbt_4 = "e6800010DNMv", -- v6
+  pkhtb_3 = "e6800050DNM", pkhtb_4 = "e6800050DNMv", -- v6
+  sxtab_3 = "e6a00070DNM", sxtab_4 = "e6a00070DNMv", -- v6
+  sxtab16_3 = "e6800070DNM", sxtab16_4 = "e6800070DNMv", -- v6
+  sxtah_3 = "e6b00070DNM", sxtah_4 = "e6b00070DNMv", -- v6
+  sxtb_2 = "e6af0070DM", sxtb_3 = "e6af0070DMv", -- v6
+  sxtb16_2 = "e68f0070DM", sxtb16_3 = "e68f0070DMv", -- v6
+  sxth_2 = "e6bf0070DM", sxth_3 = "e6bf0070DMv", -- v6
+  uxtab_3 = "e6e00070DNM", uxtab_4 = "e6e00070DNMv", -- v6
+  uxtab16_3 = "e6c00070DNM", uxtab16_4 = "e6c00070DNMv", -- v6
+  uxtah_3 = "e6f00070DNM", uxtah_4 = "e6f00070DNMv", -- v6
+  uxtb_2 = "e6ef0070DM", uxtb_3 = "e6ef0070DMv", -- v6
+  uxtb16_2 = "e6cf0070DM", uxtb16_3 = "e6cf0070DMv", -- v6
+  uxth_2 = "e6ff0070DM", uxth_3 = "e6ff0070DMv", -- v6
+
+  -- Saturating instructions.
+  qadd_3 = "e1000050DMN",	-- v5TE
+  qsub_3 = "e1200050DMN",	-- v5TE
+  qdadd_3 = "e1400050DMN",	-- v5TE
+  qdsub_3 = "e1600050DMN",	-- v5TE
+  -- Note: the X for ssat* encodes sat_imm-1, not sat_imm.
+  ssat_3 = "e6a00010DXM", ssat_4 = "e6a00010DXMp", -- v6
+  usat_3 = "e6e00010DXM", usat_4 = "e6e00010DXMp", -- v6
+  ssat16_3 = "e6a00f30DXM", -- v6
+  usat16_3 = "e6e00f30DXM", -- v6
+
+  -- Parallel addition and subtraction.
+  sadd16_3 = "e6100f10DNM", -- v6
+  sasx_3 = "e6100f30DNM", -- v6
+  ssax_3 = "e6100f50DNM", -- v6
+  ssub16_3 = "e6100f70DNM", -- v6
+  sadd8_3 = "e6100f90DNM", -- v6
+  ssub8_3 = "e6100ff0DNM", -- v6
+  qadd16_3 = "e6200f10DNM", -- v6
+  qasx_3 = "e6200f30DNM", -- v6
+  qsax_3 = "e6200f50DNM", -- v6
+  qsub16_3 = "e6200f70DNM", -- v6
+  qadd8_3 = "e6200f90DNM", -- v6
+  qsub8_3 = "e6200ff0DNM", -- v6
+  shadd16_3 = "e6300f10DNM", -- v6
+  shasx_3 = "e6300f30DNM", -- v6
+  shsax_3 = "e6300f50DNM", -- v6
+  shsub16_3 = "e6300f70DNM", -- v6
+  shadd8_3 = "e6300f90DNM", -- v6
+  shsub8_3 = "e6300ff0DNM", -- v6
+  uadd16_3 = "e6500f10DNM", -- v6
+  uasx_3 = "e6500f30DNM", -- v6
+  usax_3 = "e6500f50DNM", -- v6
+  usub16_3 = "e6500f70DNM", -- v6
+  uadd8_3 = "e6500f90DNM", -- v6
+  usub8_3 = "e6500ff0DNM", -- v6
+  uqadd16_3 = "e6600f10DNM", -- v6
+  uqasx_3 = "e6600f30DNM", -- v6
+  uqsax_3 = "e6600f50DNM", -- v6
+  uqsub16_3 = "e6600f70DNM", -- v6
+  uqadd8_3 = "e6600f90DNM", -- v6
+  uqsub8_3 = "e6600ff0DNM", -- v6
+  uhadd16_3 = "e6700f10DNM", -- v6
+  uhasx_3 = "e6700f30DNM", -- v6
+  uhsax_3 = "e6700f50DNM", -- v6
+  uhsub16_3 = "e6700f70DNM", -- v6
+  uhadd8_3 = "e6700f90DNM", -- v6
+  uhsub8_3 = "e6700ff0DNM", -- v6
+
+  -- Load/store instructions.
+  str_2 = "e4000000DL", str_3 = "e4000000DL", str_4 = "e4000000DL",
+  strb_2 = "e4400000DL", strb_3 = "e4400000DL", strb_4 = "e4400000DL",
+  ldr_2 = "e4100000DL", ldr_3 = "e4100000DL", ldr_4 = "e4100000DL",
+  ldrb_2 = "e4500000DL", ldrb_3 = "e4500000DL", ldrb_4 = "e4500000DL",
+  strh_2 = "e00000b0DL", strh_3 = "e00000b0DL",
+  ldrh_2 = "e01000b0DL", ldrh_3 = "e01000b0DL",
+  ldrd_2 = "e00000d0DL", ldrd_3 = "e00000d0DL", -- v5TE
+  ldrsb_2 = "e01000d0DL", ldrsb_3 = "e01000d0DL",
+  strd_2 = "e00000f0DL", strd_3 = "e00000f0DL", -- v5TE
+  ldrsh_2 = "e01000f0DL", ldrsh_3 = "e01000f0DL",
+
+  ldm_2 = "e8900000oR", ldmia_2 = "e8900000oR", ldmfd_2 = "e8900000oR",
+  ldmda_2 = "e8100000oR", ldmfa_2 = "e8100000oR",
+  ldmdb_2 = "e9100000oR", ldmea_2 = "e9100000oR",
+  ldmib_2 = "e9900000oR", ldmed_2 = "e9900000oR",
+  stm_2 = "e8800000oR", stmia_2 = "e8800000oR", stmfd_2 = "e8800000oR",
+  stmda_2 = "e8000000oR", stmfa_2 = "e8000000oR",
+  stmdb_2 = "e9000000oR", stmea_2 = "e9000000oR",
+  stmib_2 = "e9800000oR", stmed_2 = "e9800000oR",
+  pop_1 = "e8bd0000R", push_1 = "e92d0000R",
+
+  -- Branch instructions.
+  b_1 = "ea000000B",
+  bl_1 = "eb000000B",
+  blx_1 = "e12fff30C",
+  bx_1 = "e12fff10M",
+
+  -- Miscellaneous instructions.
+  nop_0 = "e1a00000",
+  mrs_1 = "e10f0000D",
+  bkpt_1 = "e1200070K", -- v5T
+  svc_1 = "ef000000T", swi_1 = "ef000000T",
+  ud_0 = "e7f001f0",
+
+  -- VFP instructions.
+  ["vadd.f32_3"] = "ee300a00dnm",
+  ["vadd.f64_3"] = "ee300b00Gdnm",
+  ["vsub.f32_3"] = "ee300a40dnm",
+  ["vsub.f64_3"] = "ee300b40Gdnm",
+  ["vmul.f32_3"] = "ee200a00dnm",
+  ["vmul.f64_3"] = "ee200b00Gdnm",
+  ["vnmul.f32_3"] = "ee200a40dnm",
+  ["vnmul.f64_3"] = "ee200b40Gdnm",
+  ["vmla.f32_3"] = "ee000a00dnm",
+  ["vmla.f64_3"] = "ee000b00Gdnm",
+  ["vmls.f32_3"] = "ee000a40dnm",
+  ["vmls.f64_3"] = "ee000b40Gdnm",
+  ["vnmla.f32_3"] = "ee100a40dnm",
+  ["vnmla.f64_3"] = "ee100b40Gdnm",
+  ["vnmls.f32_3"] = "ee100a00dnm",
+  ["vnmls.f64_3"] = "ee100b00Gdnm",
+  ["vdiv.f32_3"] = "ee800a00dnm",
+  ["vdiv.f64_3"] = "ee800b00Gdnm",
+
+  ["vabs.f32_2"] = "eeb00ac0dm",
+  ["vabs.f64_2"] = "eeb00bc0Gdm",
+  ["vneg.f32_2"] = "eeb10a40dm",
+  ["vneg.f64_2"] = "eeb10b40Gdm",
+  ["vsqrt.f32_2"] = "eeb10ac0dm",
+  ["vsqrt.f64_2"] = "eeb10bc0Gdm",
+  ["vcmp.f32_2"] = "eeb40a40dm",
+  ["vcmp.f64_2"] = "eeb40b40Gdm",
+  ["vcmpe.f32_2"] = "eeb40ac0dm",
+  ["vcmpe.f64_2"] = "eeb40bc0Gdm",
+  ["vcmpz.f32_1"] = "eeb50a40d",
+  ["vcmpz.f64_1"] = "eeb50b40Gd",
+  ["vcmpze.f32_1"] = "eeb50ac0d",
+  ["vcmpze.f64_1"] = "eeb50bc0Gd",
+
+  vldr_2 = "ed100a00dl|ed100b00Gdl",
+  vstr_2 = "ed000a00dl|ed000b00Gdl",
+  vldm_2 = "ec900a00or",
+  vldmia_2 = "ec900a00or",
+  vldmdb_2 = "ed100a00or",
+  vpop_1 = "ecbd0a00r",
+  vstm_2 = "ec800a00or",
+  vstmia_2 = "ec800a00or",
+  vstmdb_2 = "ed000a00or",
+  vpush_1 = "ed2d0a00r",
+
+  ["vmov.f32_2"] = "eeb00a40dm|eeb00a00dY",	-- #imm is VFPv3 only
+  ["vmov.f64_2"] = "eeb00b40Gdm|eeb00b00GdY",	-- #imm is VFPv3 only
+  vmov_2 = "ee100a10Dn|ee000a10nD",
+  vmov_3 = "ec500a10DNm|ec400a10mDN|ec500b10GDNm|ec400b10GmDN",
+
+  vmrs_0 = "eef1fa10",
+  vmrs_1 = "eef10a10D",
+  vmsr_1 = "eee10a10D",
+
+  ["vcvt.s32.f32_2"] = "eebd0ac0dm",
+  ["vcvt.s32.f64_2"] = "eebd0bc0dGm",
+  ["vcvt.u32.f32_2"] = "eebc0ac0dm",
+  ["vcvt.u32.f64_2"] = "eebc0bc0dGm",
+  ["vcvtr.s32.f32_2"] = "eebd0a40dm",
+  ["vcvtr.s32.f64_2"] = "eebd0b40dGm",
+  ["vcvtr.u32.f32_2"] = "eebc0a40dm",
+  ["vcvtr.u32.f64_2"] = "eebc0b40dGm",
+  ["vcvt.f32.s32_2"] = "eeb80ac0dm",
+  ["vcvt.f64.s32_2"] = "eeb80bc0GdFm",
+  ["vcvt.f32.u32_2"] = "eeb80a40dm",
+  ["vcvt.f64.u32_2"] = "eeb80b40GdFm",
+  ["vcvt.f32.f64_2"] = "eeb70bc0dGm",
+  ["vcvt.f64.f32_2"] = "eeb70ac0GdFm",
+
+  -- VFPv4 only:
+  ["vfma.f32_3"] = "eea00a00dnm",
+  ["vfma.f64_3"] = "eea00b00Gdnm",
+  ["vfms.f32_3"] = "eea00a40dnm",
+  ["vfms.f64_3"] = "eea00b40Gdnm",
+  ["vfnma.f32_3"] = "ee900a40dnm",
+  ["vfnma.f64_3"] = "ee900b40Gdnm",
+  ["vfnms.f32_3"] = "ee900a00dnm",
+  ["vfnms.f64_3"] = "ee900b00Gdnm",
+
+  -- NYI: Advanced SIMD instructions.
+
+  -- NYI: I have no need for these instructions right now:
+  -- swp, swpb, strex, ldrex, strexd, ldrexd, strexb, ldrexb, strexh, ldrexh
+  -- msr, nopv6, yield, wfe, wfi, sev, dbg, bxj, smc, srs, rfe
+  -- cps, setend, pli, pld, pldw, clrex, dsb, dmb, isb
+  -- stc, ldc, mcr, mcr2, mrc, mrc2, mcrr, mcrr2, mrrc, mrrc2, cdp, cdp2
+}
+
+-- Add mnemonics for "s" variants.
+do
+  local t = {}
+  for k,v in pairs(map_op) do
+    if sub(v, -1) == "s" then
+      local v2 = sub(v, 1, 2)..char(byte(v, 3)+1)..sub(v, 4, -2)
+      t[sub(k, 1, -3).."s"..sub(k, -2)] = v2
+    end
+  end
+  for k,v in pairs(t) do
+    map_op[k] = v
+  end
+end
+
+------------------------------------------------------------------------------
+
+local function parse_gpr(expr)
+  local tname, ovreg = match(expr, "^([%w_]+):(r1?[0-9])$")
+  local tp = map_type[tname or expr]
+  if tp then
+    local reg = ovreg or tp.reg
+    if not reg then
+      werror("type `"..(tname or expr).."' needs a register override")
+    end
+    expr = reg
+  end
+  local r = match(expr, "^r(1?[0-9])$")
+  if r then
+    r = tonumber(r)
+    if r <= 15 then return r, tp end
+  end
+  werror("bad register name `"..expr.."'")
+end
+
+local function parse_gpr_pm(expr)
+  local pm, expr2 = match(expr, "^([+-]?)(.*)$")
+  return parse_gpr(expr2), (pm == "-")
+end
+
+local function parse_vr(expr, tp)
+  local t, r = match(expr, "^([sd])([0-9]+)$")
+  if t == tp then
+    r = tonumber(r)
+    if r <= 31 then
+      if t == "s" then return shr(r, 1), band(r, 1) end
+      return band(r, 15), shr(r, 4)
+    end
+  end
+  werror("bad register name `"..expr.."'")
+end
+
+local function parse_reglist(reglist)
+  reglist = match(reglist, "^{%s*([^}]*)}$")
+  if not reglist then werror("register list expected") end
+  local rr = 0
+  for p in gmatch(reglist..",", "%s*([^,]*),") do
+    local rbit = shl(1, parse_gpr(gsub(p, "%s+$", "")))
+    if band(rr, rbit) ~= 0 then
+      werror("duplicate register `"..p.."'")
+    end
+    rr = rr + rbit
+  end
+  return rr
+end
+
+local function parse_vrlist(reglist)
+  local ta, ra, tb, rb = match(reglist,
+			   "^{%s*([sd])([0-9]+)%s*%-%s*([sd])([0-9]+)%s*}$")
+  ra, rb = tonumber(ra), tonumber(rb)
+  if ta and ta == tb and ra and rb and ra <= 31 and rb <= 31 and ra <= rb then
+    local nr = rb+1 - ra
+    if ta == "s" then
+      return shl(shr(ra,1),12)+shl(band(ra,1),22) + nr
+    else
+      return shl(band(ra,15),12)+shl(shr(ra,4),22) + nr*2 + 0x100
+    end
+  end
+  werror("register list expected")
+end
+
+local function parse_imm(imm, bits, shift, scale, signed)
+  imm = match(imm, "^#(.*)$")
+  if not imm then werror("expected immediate operand") end
+  local n = tonumber(imm)
+  if n then
+    local m = sar(n, scale)
+    if shl(m, scale) == n then
+      if signed then
+	local s = sar(m, bits-1)
+	if s == 0 then return shl(m, shift)
+	elseif s == -1 then return shl(m + shl(1, bits), shift) end
+      else
+	if sar(m, bits) == 0 then return shl(m, shift) end
+      end
+    end
+    werror("out of range immediate `"..imm.."'")
+  else
+    waction("IMM", (signed and 32768 or 0)+scale*1024+bits*32+shift, imm)
+    return 0
+  end
+end
+
+local function parse_imm12(imm)
+  local n = tonumber(imm)
+  if n then
+    local m = band(n)
+    for i=0,-15,-1 do
+      if shr(m, 8) == 0 then return m + shl(band(i, 15), 8) end
+      m = ror(m, 2)
+    end
+    werror("out of range immediate `"..imm.."'")
+  else
+    waction("IMM12", 0, imm)
+    return 0
+  end
+end
+
+local function parse_imm16(imm)
+  imm = match(imm, "^#(.*)$")
+  if not imm then werror("expected immediate operand") end
+  local n = tonumber(imm)
+  if n then
+    if shr(n, 16) == 0 then return band(n, 0x0fff) + shl(band(n, 0xf000), 4) end
+    werror("out of range immediate `"..imm.."'")
+  else
+    waction("IMM16", 32*16, imm)
+    return 0
+  end
+end
+
+local function parse_imm_load(imm, ext)
+  local n = tonumber(imm)
+  if n then
+    if ext then
+      if n >= -255 and n <= 255 then
+	local up = 0x00800000
+	if n < 0 then n = -n; up = 0 end
+	return shl(band(n, 0xf0), 4) + band(n, 0x0f) + up
+      end
+    else
+      if n >= -4095 and n <= 4095 then
+	if n >= 0 then return n+0x00800000 end
+	return -n
+      end
+    end
+    werror("out of range immediate `"..imm.."'")
+  else
+    waction(ext and "IMML8" or "IMML12", 32768 + shl(ext and 8 or 12, 5), imm)
+    return 0
+  end
+end
+
+local function parse_shift(shift, gprok)
+  if shift == "rrx" then
+    return 3 * 32
+  else
+    local s, s2 = match(shift, "^(%S+)%s*(.*)$")
+    s = map_shift[s]
+    if not s then werror("expected shift operand") end
+    if sub(s2, 1, 1) == "#" then
+      return parse_imm(s2, 5, 7, 0, false) + shl(s, 5)
+    else
+      if not gprok then werror("expected immediate shift operand") end
+      return shl(parse_gpr(s2), 8) + shl(s, 5) + 16
+    end
+  end
+end
+
+local function parse_label(label, def)
+  local prefix = sub(label, 1, 2)
+  -- =>label (pc label reference)
+  if prefix == "=>" then
+    return "PC", 0, sub(label, 3)
+  end
+  -- ->name (global label reference)
+  if prefix == "->" then
+    return "LG", map_global[sub(label, 3)]
+  end
+  if def then
+    -- [1-9] (local label definition)
+    if match(label, "^[1-9]$") then
+      return "LG", 10+tonumber(label)
+    end
+  else
+    -- [<>][1-9] (local label reference)
+    local dir, lnum = match(label, "^([<>])([1-9])$")
+    if dir then -- Fwd: 1-9, Bkwd: 11-19.
+      return "LG", lnum + (dir == ">" and 0 or 10)
+    end
+    -- extern label (extern label reference)
+    local extname = match(label, "^extern%s+(%S+)$")
+    if extname then
+      return "EXT", map_extern[extname]
+    end
+  end
+  werror("bad label `"..label.."'")
+end
+
+local function parse_load(params, nparams, n, op)
+  local oplo = band(op, 255)
+  local ext, ldrd = (oplo ~= 0), (oplo == 208)
+  local d
+  if (ldrd or oplo == 240) then
+    d = band(shr(op, 12), 15)
+    if band(d, 1) ~= 0 then werror("odd destination register") end
+  end
+  local pn = params[n]
+  local p1, wb = match(pn, "^%[%s*(.-)%s*%](!?)$")
+  local p2 = params[n+1]
+  if not p1 then
+    if not p2 then
+      if match(pn, "^[<>=%-]") or match(pn, "^extern%s+") then
+	local mode, n, s = parse_label(pn, false)
+	waction("REL_"..mode, n + (ext and 0x1800 or 0x0800), s, 1)
+	return op + 15 * 65536 + 0x01000000 + (ext and 0x00400000 or 0)
+      end
+      local reg, tailr = match(pn, "^([%w_:]+)%s*(.*)$")
+      if reg and tailr ~= "" then
+	local d, tp = parse_gpr(reg)
+	if tp then
+	  waction(ext and "IMML8" or "IMML12", 32768 + 32*(ext and 8 or 12),
+		  format(tp.ctypefmt, tailr))
+	  return op + shl(d, 16) + 0x01000000 + (ext and 0x00400000 or 0)
+	end
+      end
+    end
+    werror("expected address operand")
+  end
+  if wb == "!" then op = op + 0x00200000 end
+  if p2 then
+    if wb == "!" then werror("bad use of '!'") end
+    local p3 = params[n+2]
+    op = op + shl(parse_gpr(p1), 16)
+    local imm = match(p2, "^#(.*)$")
+    if imm then
+      local m = parse_imm_load(imm, ext)
+      if p3 then werror("too many parameters") end
+      op = op + m + (ext and 0x00400000 or 0)
+    else
+      local m, neg = parse_gpr_pm(p2)
+      if ldrd and (m == d or m-1 == d) then werror("register conflict") end
+      op = op + m + (neg and 0 or 0x00800000) + (ext and 0 or 0x02000000)
+      if p3 then op = op + parse_shift(p3) end
+    end
+  else
+    local p1a, p2 = match(p1, "^([^,%s]*)%s*(.*)$")
+    op = op + shl(parse_gpr(p1a), 16) + 0x01000000
+    if p2 ~= "" then
+      local imm = match(p2, "^,%s*#(.*)$")
+      if imm then
+	local m = parse_imm_load(imm, ext)
+	op = op + m + (ext and 0x00400000 or 0)
+      else
+	local p2a, p3 = match(p2, "^,%s*([^,%s]*)%s*,?%s*(.*)$")
+	local m, neg = parse_gpr_pm(p2a)
+	if ldrd and (m == d or m-1 == d) then werror("register conflict") end
+	op = op + m + (neg and 0 or 0x00800000) + (ext and 0 or 0x02000000)
+	if p3 ~= "" then
+	  if ext then werror("too many parameters") end
+	  op = op + parse_shift(p3)
+	end
+      end
+    else
+      if wb == "!" then werror("bad use of '!'") end
+      op = op + (ext and 0x00c00000 or 0x00800000)
+    end
+  end
+  return op
+end
+
+local function parse_vload(q)
+  local reg, imm = match(q, "^%[%s*([^,%s]*)%s*(.*)%]$")
+  if reg then
+    local d = shl(parse_gpr(reg), 16)
+    if imm == "" then return d end
+    imm = match(imm, "^,%s*#(.*)$")
+    if imm then
+      local n = tonumber(imm)
+      if n then
+	if n >= -1020 and n <= 1020 and n%4 == 0 then
+	  return d + (n >= 0 and n/4+0x00800000 or -n/4)
+	end
+	werror("out of range immediate `"..imm.."'")
+      else
+	waction("IMMV8", 32768 + 32*8, imm)
+	return d
+      end
+    end
+  else
+    if match(q, "^[<>=%-]") or match(q, "^extern%s+") then
+      local mode, n, s = parse_label(q, false)
+      waction("REL_"..mode, n + 0x2800, s, 1)
+      return 15 * 65536
+    end
+    local reg, tailr = match(q, "^([%w_:]+)%s*(.*)$")
+    if reg and tailr ~= "" then
+      local d, tp = parse_gpr(reg)
+      if tp then
+	waction("IMMV8", 32768 + 32*8, format(tp.ctypefmt, tailr))
+	return shl(d, 16)
+      end
+    end
+  end
+  werror("expected address operand")
+end
+
+------------------------------------------------------------------------------
+
+-- Handle opcodes defined with template strings.
+local function parse_template(params, template, nparams, pos)
+  local op = tonumber(sub(template, 1, 8), 16)
+  local n = 1
+  local vr = "s"
+
+  -- Process each character.
+  for p in gmatch(sub(template, 9), ".") do
+    local q = params[n]
+    if p == "D" then
+      op = op + shl(parse_gpr(q), 12); n = n + 1
+    elseif p == "N" then
+      op = op + shl(parse_gpr(q), 16); n = n + 1
+    elseif p == "S" then
+      op = op + shl(parse_gpr(q), 8); n = n + 1
+    elseif p == "M" then
+      op = op + parse_gpr(q); n = n + 1
+    elseif p == "d" then
+      local r,h = parse_vr(q, vr); op = op+shl(r,12)+shl(h,22); n = n + 1
+    elseif p == "n" then
+      local r,h = parse_vr(q, vr); op = op+shl(r,16)+shl(h,7); n = n + 1
+    elseif p == "m" then
+      local r,h = parse_vr(q, vr); op = op+r+shl(h,5); n = n + 1
+    elseif p == "P" then
+      local imm = match(q, "^#(.*)$")
+      if imm then
+	op = op + parse_imm12(imm) + 0x02000000
+      else
+	op = op + parse_gpr(q)
+      end
+      n = n + 1
+    elseif p == "p" then
+      op = op + parse_shift(q, true); n = n + 1
+    elseif p == "L" then
+      op = parse_load(params, nparams, n, op)
+    elseif p == "l" then
+      op = op + parse_vload(q)
+    elseif p == "B" then
+      local mode, n, s = parse_label(q, false)
+      waction("REL_"..mode, n, s, 1)
+    elseif p == "C" then -- blx gpr vs. blx label.
+      if match(q, "^([%w_]+):(r1?[0-9])$") or match(q, "^r(1?[0-9])$") then
+	op = op + parse_gpr(q)
+      else
+	if op < 0xe0000000 then werror("unconditional instruction") end
+	local mode, n, s = parse_label(q, false)
+	waction("REL_"..mode, n, s, 1)
+	op = 0xfa000000
+      end
+    elseif p == "F" then
+      vr = "s"
+    elseif p == "G" then
+      vr = "d"
+    elseif p == "o" then
+      local r, wb = match(q, "^([^!]*)(!?)$")
+      op = op + shl(parse_gpr(r), 16) + (wb == "!" and 0x00200000 or 0)
+      n = n + 1
+    elseif p == "R" then
+      op = op + parse_reglist(q); n = n + 1
+    elseif p == "r" then
+      op = op + parse_vrlist(q); n = n + 1
+    elseif p == "W" then
+      op = op + parse_imm16(q); n = n + 1
+    elseif p == "v" then
+      op = op + parse_imm(q, 5, 7, 0, false); n = n + 1
+    elseif p == "w" then
+      local imm = match(q, "^#(.*)$")
+      if imm then
+	op = op + parse_imm(q, 5, 7, 0, false); n = n + 1
+      else
+	op = op + shl(parse_gpr(q), 8) + 16
+      end
+    elseif p == "X" then
+      op = op + parse_imm(q, 5, 16, 0, false); n = n + 1
+    elseif p == "Y" then
+      local imm = tonumber(match(q, "^#(.*)$")); n = n + 1
+      if not imm or shr(imm, 8) ~= 0 then
+	werror("bad immediate operand")
+      end
+      op = op + shl(band(imm, 0xf0), 12) + band(imm, 0x0f)
+    elseif p == "K" then
+      local imm = tonumber(match(q, "^#(.*)$")); n = n + 1
+      if not imm or shr(imm, 16) ~= 0 then
+	werror("bad immediate operand")
+      end
+      op = op + shl(band(imm, 0xfff0), 4) + band(imm, 0x000f)
+    elseif p == "T" then
+      op = op + parse_imm(q, 24, 0, 0, false); n = n + 1
+    elseif p == "s" then
+      -- Ignored.
+    else
+      assert(false)
+    end
+  end
+  wputpos(pos, op)
+end
+
+map_op[".template__"] = function(params, template, nparams)
+  if not params then return sub(template, 9) end
+
+  -- Limit number of section buffer positions used by a single dasm_put().
+  -- A single opcode needs a maximum of 3 positions.
+  if secpos+3 > maxsecpos then wflush() end
+  local pos = wpos()
+  local apos, spos = #actargs, secpos
+
+  local ok, err
+  for t in gmatch(template, "[^|]+") do
+    ok, err = pcall(parse_template, params, t, nparams, pos)
+    if ok then return end
+    secpos = spos
+    actargs[apos+1] = nil
+    actargs[apos+2] = nil
+    actargs[apos+3] = nil
+  end
+  error(err, 0)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+  if not params then return "prefix" end
+  local prefix = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_1"] = function(params)
+  if not params then return "[1-9] | ->global | =>pcexpr" end
+  if secpos+1 > maxsecpos then wflush() end
+  local mode, n, s = parse_label(params[1], true)
+  if mode == "EXT" then werror("bad label definition") end
+  waction("LABEL_"..mode, n, s, 1)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+map_op[".long_*"] = function(params)
+  if not params then return "imm..." end
+  for _,p in ipairs(params) do
+    local n = tonumber(p)
+    if not n then werror("bad immediate `"..p.."'") end
+    if n < 0 then n = n + 2^32 end
+    wputw(n)
+    if secpos+2 > maxsecpos then wflush() end
+  end
+end
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+  if not params then return "numpow2" end
+  if secpos+1 > maxsecpos then wflush() end
+  local align = tonumber(params[1])
+  if align then
+    local x = align
+    -- Must be a power of 2 in the range (2 ... 256).
+    for i=1,8 do
+      x = x / 2
+      if x == 1 then
+	waction("ALIGN", align-1, nil, 1) -- Action byte is 2**n-1.
+	return
+      end
+    end
+  end
+  werror("bad alignment")
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+  if not params then
+    return nparams == 2 and "name, ctype" or "name, ctype, reg"
+  end
+  local name, ctype, reg = params[1], params[2], params[3]
+  if not match(name, "^[%a_][%w_]*$") then
+    werror("bad type name `"..name.."'")
+  end
+  local tp = map_type[name]
+  if tp then
+    werror("duplicate type `"..name.."'")
+  end
+  -- Add #type to defines. A bit unclean to put it in map_archdef.
+  map_archdef["#"..name] = "sizeof("..ctype..")"
+  -- Add new type and emit shortcut define.
+  local num = ctypenum + 1
+  map_type[name] = {
+    ctype = ctype,
+    ctypefmt = format("Dt%X(%%s)", num),
+    reg = reg,
+  }
+  wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+  ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+  local t = {}
+  for name in pairs(map_type) do t[#t+1] = name end
+  sort(t)
+  out:write("Type definitions:\n")
+  for _,name in ipairs(t) do
+    local tp = map_type[name]
+    local reg = tp.reg or ""
+    out:write(format("  %-20s %-20s %s\n", name, tp.ctype, reg))
+  end
+  out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+  waction("SECTION", num)
+  wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+  out:write(format("DynASM %s version %s, released %s\n\n",
+    _info.arch, _info.version, _info.release))
+  dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+  dumptypes(out, lvl)
+  dumpglobals(out, lvl)
+  dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+  wline, werror, wfatal, wwarn = wl, we, wf, ww
+  return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+  g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+  setmetatable(map_op, { __index = function(t, k)
+    local v = map_coreop[k]
+    if v then return v end
+    local k1, cc, k2 = match(k, "^(.-)(..)([._].*)$")
+    local cv = map_cond[cc]
+    if cv then
+      local v = rawget(t, k1..k2)
+      if type(v) == "string" then
+	local scv = format("%x", cv)
+	return gsub(scv..sub(v, 2), "|e", "|"..scv)
+      end
+    end
+  end })
+  setmetatable(map_def, { __index = map_archdef })
+  return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/lib/luajit/dynasm/dasm_mips.h b/lib/luajit/dynasm/dasm_mips.h
new file mode 100644
index 00000000..43595889
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_mips.h
@@ -0,0 +1,416 @@
+/*
+** DynASM MIPS encoding engine.
+** Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+** Released under the MIT license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH		"mips"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d)	0
+#endif
+
+/* Action definitions. */
+enum {
+  DASM_STOP, DASM_SECTION, DASM_ESC, DASM_REL_EXT,
+  /* The following actions need a buffer position. */
+  DASM_ALIGN, DASM_REL_LG, DASM_LABEL_LG,
+  /* The following actions also have an argument. */
+  DASM_REL_PC, DASM_LABEL_PC, DASM_IMM,
+  DASM__MAX
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS		25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK		0x00000000
+#define DASM_S_NOMEM		0x01000000
+#define DASM_S_PHASE		0x02000000
+#define DASM_S_MATCH_SEC	0x03000000
+#define DASM_S_RANGE_I		0x11000000
+#define DASM_S_RANGE_SEC	0x12000000
+#define DASM_S_RANGE_LG		0x13000000
+#define DASM_S_RANGE_PC		0x14000000
+#define DASM_S_RANGE_REL	0x15000000
+#define DASM_S_UNDEF_LG		0x21000000
+#define DASM_S_UNDEF_PC		0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos)	((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos)	((pos)&0xff000000)
+#define DASM_SEC2POS(sec)	((sec)<<24)
+#define DASM_POS2SEC(pos)	((pos)>>24)
+#define DASM_POS2PTR(D, pos)	(D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned int *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+  int *rbuf;		/* Biased buffer pointer (negative section bias). */
+  int *buf;		/* True buffer pointer. */
+  size_t bsize;		/* Buffer size in bytes. */
+  int pos;		/* Biased buffer position. */
+  int epos;		/* End of biased buffer position - max single put. */
+  int ofs;		/* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+  size_t psize;			/* Allocated size of this structure. */
+  dasm_ActList actionlist;	/* Current actionlist pointer. */
+  int *lglabels;		/* Local/global chain/pos ptrs. */
+  size_t lgsize;
+  int *pclabels;		/* PC label chains/pos ptrs. */
+  size_t pcsize;
+  void **globals;		/* Array of globals (bias -10). */
+  dasm_Section *section;	/* Pointer to active section. */
+  size_t codesize;		/* Total size of all code sections. */
+  int maxsection;		/* 0 <= sectionidx < maxsection. */
+  int status;			/* Status code. */
+  dasm_Section sections[1];	/* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms)	(sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+  dasm_State *D;
+  size_t psz = 0;
+  int i;
+  Dst_REF = NULL;
+  DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+  D = Dst_REF;
+  D->psize = psz;
+  D->lglabels = NULL;
+  D->lgsize = 0;
+  D->pclabels = NULL;
+  D->pcsize = 0;
+  D->globals = NULL;
+  D->maxsection = maxsection;
+  for (i = 0; i < maxsection; i++) {
+    D->sections[i].buf = NULL;  /* Need this for pass3. */
+    D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+    D->sections[i].bsize = 0;
+    D->sections[i].epos = 0;  /* Wrong, but is recalculated after resize. */
+  }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  for (i = 0; i < D->maxsection; i++)
+    if (D->sections[i].buf)
+      DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+  if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+  if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+  DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+  dasm_State *D = Dst_REF;
+  D->globals = gl - 10;  /* Negative bias to compensate for locals. */
+  DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+  dasm_State *D = Dst_REF;
+  size_t osz = D->pcsize;
+  DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+  memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  D->actionlist = (dasm_ActList)actionlist;
+  D->status = DASM_S_OK;
+  D->section = &D->sections[0];
+  memset((void *)D->lglabels, 0, D->lgsize);
+  if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+  for (i = 0; i < D->maxsection; i++) {
+    D->sections[i].pos = DASM_SEC2POS(i);
+    D->sections[i].ofs = 0;
+  }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) { \
+    D->status = DASM_S_##st|(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+  do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+    D->status = DASM_S_RANGE_##st|(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st)	((void)0)
+#define CKPL(kind, st)	((void)0)
+#endif
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+  va_list ap;
+  dasm_State *D = Dst_REF;
+  dasm_ActList p = D->actionlist + start;
+  dasm_Section *sec = D->section;
+  int pos = sec->pos, ofs = sec->ofs;
+  int *b;
+
+  if (pos >= sec->epos) {
+    DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+      sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+    sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+    sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+  }
+
+  b = sec->rbuf;
+  b[pos++] = start;
+
+  va_start(ap, start);
+  while (1) {
+    unsigned int ins = *p++;
+    unsigned int action = (ins >> 16) - 0xff00;
+    if (action >= DASM__MAX) {
+      ofs += 4;
+    } else {
+      int *pl, n = action >= DASM_REL_PC ? va_arg(ap, int) : 0;
+      switch (action) {
+      case DASM_STOP: goto stop;
+      case DASM_SECTION:
+	n = (ins & 255); CK(n < D->maxsection, RANGE_SEC);
+	D->section = &D->sections[n]; goto stop;
+      case DASM_ESC: p++; ofs += 4; break;
+      case DASM_REL_EXT: break;
+      case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
+      case DASM_REL_LG:
+	n = (ins & 2047) - 10; pl = D->lglabels + n;
+	/* Bkwd rel or global. */
+	if (n >= 0) { CK(n>=10||*pl<0, RANGE_LG); CKPL(lg, LG); goto putrel; }
+	pl += 10; n = *pl;
+	if (n < 0) n = 0;  /* Start new chain for fwd rel if label exists. */
+	goto linkrel;
+      case DASM_REL_PC:
+	pl = D->pclabels + n; CKPL(pc, PC);
+      putrel:
+	n = *pl;
+	if (n < 0) {  /* Label exists. Get label pos and store it. */
+	  b[pos] = -n;
+	} else {
+      linkrel:
+	  b[pos] = n;  /* Else link to rel chain, anchored at label. */
+	  *pl = pos;
+	}
+	pos++;
+	break;
+      case DASM_LABEL_LG:
+	pl = D->lglabels + (ins & 2047) - 10; CKPL(lg, LG); goto putlabel;
+      case DASM_LABEL_PC:
+	pl = D->pclabels + n; CKPL(pc, PC);
+      putlabel:
+	n = *pl;  /* n > 0: Collapse rel chain and replace with label pos. */
+	while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos;
+	}
+	*pl = -pos;  /* Label exists now. */
+	b[pos++] = ofs;  /* Store pass1 offset estimate. */
+	break;
+      case DASM_IMM:
+#ifdef DASM_CHECKS
+	CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
+#endif
+	n >>= ((ins>>10)&31);
+#ifdef DASM_CHECKS
+	if (ins & 0x8000)
+	  CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
+	else
+	  CK((n>>((ins>>5)&31)) == 0, RANGE_I);
+#endif
+	b[pos++] = n;
+	break;
+      }
+    }
+  }
+stop:
+  va_end(ap);
+  sec->pos = pos;
+  sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+  dasm_State *D = Dst_REF;
+  int secnum;
+  int ofs = 0;
+
+#ifdef DASM_CHECKS
+  *szp = 0;
+  if (D->status != DASM_S_OK) return D->status;
+  {
+    int pc;
+    for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+      if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+  }
+#endif
+
+  { /* Handle globals not defined in this translation unit. */
+    int idx;
+    for (idx = 20; idx*sizeof(int) < D->lgsize; idx++) {
+      int n = D->lglabels[idx];
+      /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+      while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+    }
+  }
+
+  /* Combine all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->rbuf;
+    int pos = DASM_SEC2POS(secnum);
+    int lastpos = sec->pos;
+
+    while (pos != lastpos) {
+      dasm_ActList p = D->actionlist + b[pos++];
+      while (1) {
+	unsigned int ins = *p++;
+	unsigned int action = (ins >> 16) - 0xff00;
+	switch (action) {
+	case DASM_STOP: case DASM_SECTION: goto stop;
+	case DASM_ESC: p++; break;
+	case DASM_REL_EXT: break;
+	case DASM_ALIGN: ofs -= (b[pos++] + ofs) & (ins & 255); break;
+	case DASM_REL_LG: case DASM_REL_PC: pos++; break;
+	case DASM_LABEL_LG: case DASM_LABEL_PC: b[pos++] += ofs; break;
+	case DASM_IMM: pos++; break;
+	}
+      }
+      stop: (void)0;
+    }
+    ofs += sec->ofs;  /* Next section starts right after current section. */
+  }
+
+  D->codesize = ofs;  /* Total size of all code sections */
+  *szp = ofs;
+  return DASM_S_OK;
+}
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) return DASM_S_##st|(p-D->actionlist-1); } while (0)
+#else
+#define CK(x, st)	((void)0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+  dasm_State *D = Dst_REF;
+  char *base = (char *)buffer;
+  unsigned int *cp = (unsigned int *)buffer;
+  int secnum;
+
+  /* Encode all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->buf;
+    int *endb = sec->rbuf + sec->pos;
+
+    while (b != endb) {
+      dasm_ActList p = D->actionlist + *b++;
+      while (1) {
+	unsigned int ins = *p++;
+	unsigned int action = (ins >> 16) - 0xff00;
+	int n = (action >= DASM_ALIGN && action < DASM__MAX) ? *b++ : 0;
+	switch (action) {
+	case DASM_STOP: case DASM_SECTION: goto stop;
+	case DASM_ESC: *cp++ = *p++; break;
+	case DASM_REL_EXT:
+	  n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins & 2047), 1);
+	  goto patchrel;
+	case DASM_ALIGN:
+	  ins &= 255; while ((((char *)cp - base) & ins)) *cp++ = 0x60000000;
+	  break;
+	case DASM_REL_LG:
+	  CK(n >= 0, UNDEF_LG);
+	case DASM_REL_PC:
+	  CK(n >= 0, UNDEF_PC);
+	  n = *DASM_POS2PTR(D, n);
+	  if (ins & 2048)
+	    n = n - (int)((char *)cp - base);
+	  else
+	    n = (n + (int)base) & 0x0fffffff;
+	patchrel:
+	  CK((n & 3) == 0 &&
+	     ((n + ((ins & 2048) ? 0x00020000 : 0)) >>
+	       ((ins & 2048) ? 18 : 28)) == 0, RANGE_REL);
+	  cp[-1] |= ((n>>2) & ((ins & 2048) ? 0x0000ffff: 0x03ffffff));
+	  break;
+	case DASM_LABEL_LG:
+	  ins &= 2047; if (ins >= 20) D->globals[ins-10] = (void *)(base + n);
+	  break;
+	case DASM_LABEL_PC: break;
+	case DASM_IMM:
+	  cp[-1] |= (n & ((1<<((ins>>5)&31))-1)) << (ins&31);
+	  break;
+	default: *cp++ = ins; break;
+	}
+      }
+      stop: (void)0;
+    }
+  }
+
+  if (base + D->codesize != (char *)cp)  /* Check for phase errors. */
+    return DASM_S_PHASE;
+  return DASM_S_OK;
+}
+#undef CK
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+  dasm_State *D = Dst_REF;
+  if (pc*sizeof(int) < D->pcsize) {
+    int pos = D->pclabels[pc];
+    if (pos < 0) return *DASM_POS2PTR(D, -pos);
+    if (pos > 0) return -1;  /* Undefined. */
+  }
+  return -2;  /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+  dasm_State *D = Dst_REF;
+  if (D->status == DASM_S_OK) {
+    int i;
+    for (i = 1; i <= 9; i++) {
+      if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_LG|i; break; }
+      D->lglabels[i] = 0;
+    }
+  }
+  if (D->status == DASM_S_OK && secmatch >= 0 &&
+      D->section != &D->sections[secmatch])
+    D->status = DASM_S_MATCH_SEC|(D->section-D->sections);
+  return D->status;
+}
+#endif
+
diff --git a/lib/luajit/dynasm/dasm_mips.lua b/lib/luajit/dynasm/dasm_mips.lua
new file mode 100644
index 00000000..82942cbb
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_mips.lua
@@ -0,0 +1,953 @@
+------------------------------------------------------------------------------
+-- DynASM MIPS module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Module information:
+local _info = {
+  arch =	"mips",
+  description =	"DynASM MIPS module",
+  version =	"1.3.0",
+  vernum =	 10300,
+  release =	"2012-01-23",
+  author =	"Mike Pall",
+  license =	"MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, setmetatable = assert, setmetatable
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local match, gmatch = _s.match, _s.gmatch
+local concat, sort = table.concat, table.sort
+local bit = bit or require("bit")
+local band, shl, sar, tohex = bit.band, bit.lshift, bit.arshift, bit.tohex
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+  "STOP", "SECTION", "ESC", "REL_EXT",
+  "ALIGN", "REL_LG", "LABEL_LG",
+  "REL_PC", "LABEL_PC", "IMM",
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number.
+local map_action = {}
+for n,name in ipairs(action_names) do
+  map_action[name] = n-1
+end
+
+-- Action list buffer.
+local actlist = {}
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+  out:write("DynASM encoding engine action codes:\n")
+  for n,name in ipairs(action_names) do
+    local num = map_action[name]
+    out:write(format("  %-10s %02X  %d\n", name, num, num))
+  end
+  out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+  local nn = #actlist
+  if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
+  out:write("static const unsigned int ", name, "[", nn, "] = {\n")
+  for i = 1,nn-1 do
+    assert(out:write("0x", tohex(actlist[i]), ",\n"))
+  end
+  assert(out:write("0x", tohex(actlist[nn]), "\n};\n\n"))
+end
+
+------------------------------------------------------------------------------
+
+-- Add word to action list.
+local function wputxw(n)
+  assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+  actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, val, a, num)
+  local w = assert(map_action[action], "bad action name `"..action.."'")
+  wputxw(0xff000000 + w * 0x10000 + (val or 0))
+  if a then actargs[#actargs+1] = a end
+  if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+  if #actlist == actargs[1] then return end -- Nothing to flush.
+  if not term then waction("STOP") end -- Terminate action list.
+  wline(format("dasm_put(Dst, %s);", concat(actargs, ", ")), true)
+  actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+  secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped word.
+local function wputw(n)
+  if n >= 0xff000000 then waction("ESC") end
+  wputxw(n)
+end
+
+-- Reserve position for word.
+local function wpos()
+  local pos = #actlist+1
+  actlist[pos] = ""
+  return pos
+end
+
+-- Store word to reserved position.
+local function wputpos(pos, n)
+  assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+  actlist[pos] = n
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 20
+local map_global = setmetatable({}, { __index = function(t, name)
+  if not match(name, "^[%a_][%w_]*$") then werror("bad global label") end
+  local n = next_global
+  if n > 2047 then werror("too many global labels") end
+  next_global = n + 1
+  t[name] = n
+  return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("Global labels:\n")
+  for i=20,next_global-1 do
+    out:write(format("  %s\n", t[i]))
+  end
+  out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("enum {\n")
+  for i=20,next_global-1 do
+    out:write("  ", prefix, t[i], ",\n")
+  end
+  out:write("  ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=20,next_global-1 do
+    out:write("  \"", t[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = 0
+local map_extern_ = {}
+local map_extern = setmetatable({}, { __index = function(t, name)
+  -- No restrictions on the name for now.
+  local n = next_extern
+  if n > 2047 then werror("too many extern labels") end
+  next_extern = n + 1
+  t[name] = n
+  map_extern_[n] = name
+  return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+  out:write("Extern labels:\n")
+  for i=0,next_extern-1 do
+    out:write(format("  %s\n", map_extern_[i]))
+  end
+  out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=0,next_extern-1 do
+    out:write("  \"", map_extern_[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+local map_archdef = { sp="r29", ra="r31" } -- Ext. register name -> int. name.
+
+local map_type = {}		-- Type name -> { ctype, reg }
+local ctypenum = 0		-- Type number (for Dt... macros).
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+  if s == "r29" then return "sp"
+  elseif s == "r31" then return "ra" end
+  return s
+end
+
+------------------------------------------------------------------------------
+
+-- Template strings for MIPS instructions.
+local map_op = {
+  -- First-level opcodes.
+  j_1 =		"08000000J",
+  jal_1 =	"0c000000J",
+  b_1 =		"10000000B",
+  beqz_2 =	"10000000SB",
+  beq_3 =	"10000000STB",
+  bnez_2 =	"14000000SB",
+  bne_3 =	"14000000STB",
+  blez_2 =	"18000000SB",
+  bgtz_2 =	"1c000000SB",
+  addi_3 =	"20000000TSI",
+  li_2 =	"24000000TI",
+  addiu_3 =	"24000000TSI",
+  slti_3 =	"28000000TSI",
+  sltiu_3 =	"2c000000TSI",
+  andi_3 =	"30000000TSU",
+  lu_2 =	"34000000TU",
+  ori_3 =	"34000000TSU",
+  xori_3 =	"38000000TSU",
+  lui_2 =	"3c000000TU",
+  beqzl_2 =	"50000000SB",
+  beql_3 =	"50000000STB",
+  bnezl_2 =	"54000000SB",
+  bnel_3 =	"54000000STB",
+  blezl_2 =	"58000000SB",
+  bgtzl_2 =	"5c000000SB",
+  lb_2 =	"80000000TO",
+  lh_2 =	"84000000TO",
+  lwl_2 =	"88000000TO",
+  lw_2 =	"8c000000TO",
+  lbu_2 =	"90000000TO",
+  lhu_2 =	"94000000TO",
+  lwr_2 =	"98000000TO",
+  sb_2 =	"a0000000TO",
+  sh_2 =	"a4000000TO",
+  swl_2 =	"a8000000TO",
+  sw_2 =	"ac000000TO",
+  swr_2 =	"b8000000TO",
+  cache_2 =	"bc000000NO",
+  ll_2 =	"c0000000TO",
+  lwc1_2 =	"c4000000HO",
+  pref_2 =	"cc000000NO",
+  ldc1_2 =	"d4000000HO",
+  sc_2 =	"e0000000TO",
+  swc1_2 =	"e4000000HO",
+  sdc1_2 =	"f4000000HO",
+
+  -- Opcode SPECIAL.
+  nop_0 =	"00000000",
+  sll_3 =	"00000000DTA",
+  movf_2 =	"00000001DS",
+  movf_3 =	"00000001DSC",
+  movt_2 =	"00010001DS",
+  movt_3 =	"00010001DSC",
+  srl_3 =	"00000002DTA",
+  rotr_3 =	"00200002DTA",
+  sra_3 =	"00000003DTA",
+  sllv_3 =	"00000004DTS",
+  srlv_3 =	"00000006DTS",
+  rotrv_3 =	"00000046DTS",
+  srav_3 =	"00000007DTS",
+  jr_1 =	"00000008S",
+  jalr_1 =	"0000f809S",
+  jalr_2 =	"00000009DS",
+  movz_3 =	"0000000aDST",
+  movn_3 =	"0000000bDST",
+  syscall_0 =	"0000000c",
+  syscall_1 =	"0000000cY",
+  break_0 =	"0000000d",
+  break_1 =	"0000000dY",
+  sync_0 =	"0000000f",
+  mfhi_1 =	"00000010D",
+  mthi_1 =	"00000011S",
+  mflo_1 =	"00000012D",
+  mtlo_1 =	"00000013S",
+  mult_2 =	"00000018ST",
+  multu_2 =	"00000019ST",
+  div_2 =	"0000001aST",
+  divu_2 =	"0000001bST",
+  add_3 =	"00000020DST",
+  move_2 =	"00000021DS",
+  addu_3 =	"00000021DST",
+  sub_3 =	"00000022DST",
+  negu_2 =	"00000023DT",
+  subu_3 =	"00000023DST",
+  and_3 =	"00000024DST",
+  or_3 =	"00000025DST",
+  xor_3 =	"00000026DST",
+  not_2 =	"00000027DS",
+  nor_3 =	"00000027DST",
+  slt_3 =	"0000002aDST",
+  sltu_3 =	"0000002bDST",
+  tge_2 =	"00000030ST",
+  tge_3 =	"00000030STZ",
+  tgeu_2 =	"00000031ST",
+  tgeu_3 =	"00000031STZ",
+  tlt_2 =	"00000032ST",
+  tlt_3 =	"00000032STZ",
+  tltu_2 =	"00000033ST",
+  tltu_3 =	"00000033STZ",
+  teq_2 =	"00000034ST",
+  teq_3 =	"00000034STZ",
+  tne_2 =	"00000036ST",
+  tne_3 =	"00000036STZ",
+
+  -- Opcode REGIMM.
+  bltz_2 =	"04000000SB",
+  bgez_2 =	"04010000SB",
+  bltzl_2 =	"04020000SB",
+  bgezl_2 =	"04030000SB",
+  tgei_2 =	"04080000SI",
+  tgeiu_2 =	"04090000SI",
+  tlti_2 =	"040a0000SI",
+  tltiu_2 =	"040b0000SI",
+  teqi_2 =	"040c0000SI",
+  tnei_2 =	"040e0000SI",
+  bltzal_2 =	"04100000SB",
+  bal_1 =	"04110000B",
+  bgezal_2 =	"04110000SB",
+  bltzall_2 =	"04120000SB",
+  bgezall_2 =	"04130000SB",
+  synci_1 =	"041f0000O",
+
+  -- Opcode SPECIAL2.
+  madd_2 =	"70000000ST",
+  maddu_2 =	"70000001ST",
+  mul_3 =	"70000002DST",
+  msub_2 =	"70000004ST",
+  msubu_2 =	"70000005ST",
+  clz_2 =	"70000020DS=",
+  clo_2 =	"70000021DS=",
+  sdbbp_0 =	"7000003f",
+  sdbbp_1 =	"7000003fY",
+
+  -- Opcode SPECIAL3.
+  ext_4 =	"7c000000TSAM", -- Note: last arg is msbd = size-1
+  ins_4 =	"7c000004TSAM", -- Note: last arg is msb = pos+size-1
+  wsbh_2 =	"7c0000a0DT",
+  seb_2 =	"7c000420DT",
+  seh_2 =	"7c000620DT",
+  rdhwr_2 =	"7c00003bTD",
+
+  -- Opcode COP0.
+  mfc0_2 =	"40000000TD",
+  mfc0_3 =	"40000000TDW",
+  mtc0_2 =	"40800000TD",
+  mtc0_3 =	"40800000TDW",
+  rdpgpr_2 =	"41400000DT",
+  di_0 =	"41606000",
+  di_1 =	"41606000T",
+  ei_0 =	"41606020",
+  ei_1 =	"41606020T",
+  wrpgpr_2 =	"41c00000DT",
+  tlbr_0 =	"42000001",
+  tlbwi_0 =	"42000002",
+  tlbwr_0 =	"42000006",
+  tlbp_0 =	"42000008",
+  eret_0 =	"42000018",
+  deret_0 =	"4200001f",
+  wait_0 =	"42000020",
+
+  -- Opcode COP1.
+  mfc1_2 =	"44000000TG",
+  cfc1_2 =	"44400000TG",
+  mfhc1_2 =	"44600000TG",
+  mtc1_2 =	"44800000TG",
+  ctc1_2 =	"44c00000TG",
+  mthc1_2 =	"44e00000TG",
+
+  bc1f_1 =	"45000000B",
+  bc1f_2 =	"45000000CB",
+  bc1t_1 =	"45010000B",
+  bc1t_2 =	"45010000CB",
+  bc1fl_1 =	"45020000B",
+  bc1fl_2 =	"45020000CB",
+  bc1tl_1 =	"45030000B",
+  bc1tl_2 =	"45030000CB",
+
+  ["add.s_3"] =		"46000000FGH",
+  ["sub.s_3"] =		"46000001FGH",
+  ["mul.s_3"] =		"46000002FGH",
+  ["div.s_3"] =		"46000003FGH",
+  ["sqrt.s_2"] =	"46000004FG",
+  ["abs.s_2"] =		"46000005FG",
+  ["mov.s_2"] =		"46000006FG",
+  ["neg.s_2"] =		"46000007FG",
+  ["round.l.s_2"] =	"46000008FG",
+  ["trunc.l.s_2"] =	"46000009FG",
+  ["ceil.l.s_2"] =	"4600000aFG",
+  ["floor.l.s_2"] =	"4600000bFG",
+  ["round.w.s_2"] =	"4600000cFG",
+  ["trunc.w.s_2"] =	"4600000dFG",
+  ["ceil.w.s_2"] =	"4600000eFG",
+  ["floor.w.s_2"] =	"4600000fFG",
+  ["movf.s_2"] =	"46000011FG",
+  ["movf.s_3"] =	"46000011FGC",
+  ["movt.s_2"] =	"46010011FG",
+  ["movt.s_3"] =	"46010011FGC",
+  ["movz.s_3"] =	"46000012FGT",
+  ["movn.s_3"] =	"46000013FGT",
+  ["recip.s_2"] =	"46000015FG",
+  ["rsqrt.s_2"] =	"46000016FG",
+  ["cvt.d.s_2"] =	"46000021FG",
+  ["cvt.w.s_2"] =	"46000024FG",
+  ["cvt.l.s_2"] =	"46000025FG",
+  ["cvt.ps.s_3"] =	"46000026FGH",
+  ["c.f.s_2"] =		"46000030GH",
+  ["c.f.s_3"] =		"46000030VGH",
+  ["c.un.s_2"] =	"46000031GH",
+  ["c.un.s_3"] =	"46000031VGH",
+  ["c.eq.s_2"] =	"46000032GH",
+  ["c.eq.s_3"] =	"46000032VGH",
+  ["c.ueq.s_2"] =	"46000033GH",
+  ["c.ueq.s_3"] =	"46000033VGH",
+  ["c.olt.s_2"] =	"46000034GH",
+  ["c.olt.s_3"] =	"46000034VGH",
+  ["c.ult.s_2"] =	"46000035GH",
+  ["c.ult.s_3"] =	"46000035VGH",
+  ["c.ole.s_2"] =	"46000036GH",
+  ["c.ole.s_3"] =	"46000036VGH",
+  ["c.ule.s_2"] =	"46000037GH",
+  ["c.ule.s_3"] =	"46000037VGH",
+  ["c.sf.s_2"] =	"46000038GH",
+  ["c.sf.s_3"] =	"46000038VGH",
+  ["c.ngle.s_2"] =	"46000039GH",
+  ["c.ngle.s_3"] =	"46000039VGH",
+  ["c.seq.s_2"] =	"4600003aGH",
+  ["c.seq.s_3"] =	"4600003aVGH",
+  ["c.ngl.s_2"] =	"4600003bGH",
+  ["c.ngl.s_3"] =	"4600003bVGH",
+  ["c.lt.s_2"] =	"4600003cGH",
+  ["c.lt.s_3"] =	"4600003cVGH",
+  ["c.nge.s_2"] =	"4600003dGH",
+  ["c.nge.s_3"] =	"4600003dVGH",
+  ["c.le.s_2"] =	"4600003eGH",
+  ["c.le.s_3"] =	"4600003eVGH",
+  ["c.ngt.s_2"] =	"4600003fGH",
+  ["c.ngt.s_3"] =	"4600003fVGH",
+
+  ["add.d_3"] =		"46200000FGH",
+  ["sub.d_3"] =		"46200001FGH",
+  ["mul.d_3"] =		"46200002FGH",
+  ["div.d_3"] =		"46200003FGH",
+  ["sqrt.d_2"] =	"46200004FG",
+  ["abs.d_2"] =		"46200005FG",
+  ["mov.d_2"] =		"46200006FG",
+  ["neg.d_2"] =		"46200007FG",
+  ["round.l.d_2"] =	"46200008FG",
+  ["trunc.l.d_2"] =	"46200009FG",
+  ["ceil.l.d_2"] =	"4620000aFG",
+  ["floor.l.d_2"] =	"4620000bFG",
+  ["round.w.d_2"] =	"4620000cFG",
+  ["trunc.w.d_2"] =	"4620000dFG",
+  ["ceil.w.d_2"] =	"4620000eFG",
+  ["floor.w.d_2"] =	"4620000fFG",
+  ["movf.d_2"] =	"46200011FG",
+  ["movf.d_3"] =	"46200011FGC",
+  ["movt.d_2"] =	"46210011FG",
+  ["movt.d_3"] =	"46210011FGC",
+  ["movz.d_3"] =	"46200012FGT",
+  ["movn.d_3"] =	"46200013FGT",
+  ["recip.d_2"] =	"46200015FG",
+  ["rsqrt.d_2"] =	"46200016FG",
+  ["cvt.s.d_2"] =	"46200020FG",
+  ["cvt.w.d_2"] =	"46200024FG",
+  ["cvt.l.d_2"] =	"46200025FG",
+  ["c.f.d_2"] =		"46200030GH",
+  ["c.f.d_3"] =		"46200030VGH",
+  ["c.un.d_2"] =	"46200031GH",
+  ["c.un.d_3"] =	"46200031VGH",
+  ["c.eq.d_2"] =	"46200032GH",
+  ["c.eq.d_3"] =	"46200032VGH",
+  ["c.ueq.d_2"] =	"46200033GH",
+  ["c.ueq.d_3"] =	"46200033VGH",
+  ["c.olt.d_2"] =	"46200034GH",
+  ["c.olt.d_3"] =	"46200034VGH",
+  ["c.ult.d_2"] =	"46200035GH",
+  ["c.ult.d_3"] =	"46200035VGH",
+  ["c.ole.d_2"] =	"46200036GH",
+  ["c.ole.d_3"] =	"46200036VGH",
+  ["c.ule.d_2"] =	"46200037GH",
+  ["c.ule.d_3"] =	"46200037VGH",
+  ["c.sf.d_2"] =	"46200038GH",
+  ["c.sf.d_3"] =	"46200038VGH",
+  ["c.ngle.d_2"] =	"46200039GH",
+  ["c.ngle.d_3"] =	"46200039VGH",
+  ["c.seq.d_2"] =	"4620003aGH",
+  ["c.seq.d_3"] =	"4620003aVGH",
+  ["c.ngl.d_2"] =	"4620003bGH",
+  ["c.ngl.d_3"] =	"4620003bVGH",
+  ["c.lt.d_2"] =	"4620003cGH",
+  ["c.lt.d_3"] =	"4620003cVGH",
+  ["c.nge.d_2"] =	"4620003dGH",
+  ["c.nge.d_3"] =	"4620003dVGH",
+  ["c.le.d_2"] =	"4620003eGH",
+  ["c.le.d_3"] =	"4620003eVGH",
+  ["c.ngt.d_2"] =	"4620003fGH",
+  ["c.ngt.d_3"] =	"4620003fVGH",
+
+  ["add.ps_3"] =	"46c00000FGH",
+  ["sub.ps_3"] =	"46c00001FGH",
+  ["mul.ps_3"] =	"46c00002FGH",
+  ["abs.ps_2"] =	"46c00005FG",
+  ["mov.ps_2"] =	"46c00006FG",
+  ["neg.ps_2"] =	"46c00007FG",
+  ["movf.ps_2"] =	"46c00011FG",
+  ["movf.ps_3"] =	"46c00011FGC",
+  ["movt.ps_2"] =	"46c10011FG",
+  ["movt.ps_3"] =	"46c10011FGC",
+  ["movz.ps_3"] =	"46c00012FGT",
+  ["movn.ps_3"] =	"46c00013FGT",
+  ["cvt.s.pu_2"] =	"46c00020FG",
+  ["cvt.s.pl_2"] =	"46c00028FG",
+  ["pll.ps_3"] =	"46c0002cFGH",
+  ["plu.ps_3"] =	"46c0002dFGH",
+  ["pul.ps_3"] =	"46c0002eFGH",
+  ["puu.ps_3"] =	"46c0002fFGH",
+  ["c.f.ps_2"] =	"46c00030GH",
+  ["c.f.ps_3"] =	"46c00030VGH",
+  ["c.un.ps_2"] =	"46c00031GH",
+  ["c.un.ps_3"] =	"46c00031VGH",
+  ["c.eq.ps_2"] =	"46c00032GH",
+  ["c.eq.ps_3"] =	"46c00032VGH",
+  ["c.ueq.ps_2"] =	"46c00033GH",
+  ["c.ueq.ps_3"] =	"46c00033VGH",
+  ["c.olt.ps_2"] =	"46c00034GH",
+  ["c.olt.ps_3"] =	"46c00034VGH",
+  ["c.ult.ps_2"] =	"46c00035GH",
+  ["c.ult.ps_3"] =	"46c00035VGH",
+  ["c.ole.ps_2"] =	"46c00036GH",
+  ["c.ole.ps_3"] =	"46c00036VGH",
+  ["c.ule.ps_2"] =	"46c00037GH",
+  ["c.ule.ps_3"] =	"46c00037VGH",
+  ["c.sf.ps_2"] =	"46c00038GH",
+  ["c.sf.ps_3"] =	"46c00038VGH",
+  ["c.ngle.ps_2"] =	"46c00039GH",
+  ["c.ngle.ps_3"] =	"46c00039VGH",
+  ["c.seq.ps_2"] =	"46c0003aGH",
+  ["c.seq.ps_3"] =	"46c0003aVGH",
+  ["c.ngl.ps_2"] =	"46c0003bGH",
+  ["c.ngl.ps_3"] =	"46c0003bVGH",
+  ["c.lt.ps_2"] =	"46c0003cGH",
+  ["c.lt.ps_3"] =	"46c0003cVGH",
+  ["c.nge.ps_2"] =	"46c0003dGH",
+  ["c.nge.ps_3"] =	"46c0003dVGH",
+  ["c.le.ps_2"] =	"46c0003eGH",
+  ["c.le.ps_3"] =	"46c0003eVGH",
+  ["c.ngt.ps_2"] =	"46c0003fGH",
+  ["c.ngt.ps_3"] =	"46c0003fVGH",
+
+  ["cvt.s.w_2"] =	"46800020FG",
+  ["cvt.d.w_2"] =	"46800021FG",
+
+  ["cvt.s.l_2"] =	"46a00020FG",
+  ["cvt.d.l_2"] =	"46a00021FG",
+
+  -- Opcode COP1X.
+  lwxc1_2 =		"4c000000FX",
+  ldxc1_2 =		"4c000001FX",
+  luxc1_2 =		"4c000005FX",
+  swxc1_2 =		"4c000008FX",
+  sdxc1_2 =		"4c000009FX",
+  suxc1_2 =		"4c00000dFX",
+  prefx_2 =		"4c00000fMX",
+  ["alnv.ps_4"] =	"4c00001eFGHS",
+  ["madd.s_4"] =	"4c000020FRGH",
+  ["madd.d_4"] =	"4c000021FRGH",
+  ["madd.ps_4"] =	"4c000026FRGH",
+  ["msub.s_4"] =	"4c000028FRGH",
+  ["msub.d_4"] =	"4c000029FRGH",
+  ["msub.ps_4"] =	"4c00002eFRGH",
+  ["nmadd.s_4"] =	"4c000030FRGH",
+  ["nmadd.d_4"] =	"4c000031FRGH",
+  ["nmadd.ps_4"] =	"4c000036FRGH",
+  ["nmsub.s_4"] =	"4c000038FRGH",
+  ["nmsub.d_4"] =	"4c000039FRGH",
+  ["nmsub.ps_4"] =	"4c00003eFRGH",
+}
+
+------------------------------------------------------------------------------
+
+local function parse_gpr(expr)
+  local tname, ovreg = match(expr, "^([%w_]+):(r[1-3]?[0-9])$")
+  local tp = map_type[tname or expr]
+  if tp then
+    local reg = ovreg or tp.reg
+    if not reg then
+      werror("type `"..(tname or expr).."' needs a register override")
+    end
+    expr = reg
+  end
+  local r = match(expr, "^r([1-3]?[0-9])$")
+  if r then
+    r = tonumber(r)
+    if r <= 31 then return r, tp end
+  end
+  werror("bad register name `"..expr.."'")
+end
+
+local function parse_fpr(expr)
+  local r = match(expr, "^f([1-3]?[0-9])$")
+  if r then
+    r = tonumber(r)
+    if r <= 31 then return r end
+  end
+  werror("bad register name `"..expr.."'")
+end
+
+local function parse_imm(imm, bits, shift, scale, signed)
+  local n = tonumber(imm)
+  if n then
+    local m = sar(n, scale)
+    if shl(m, scale) == n then
+      if signed then
+	local s = sar(m, bits-1)
+	if s == 0 then return shl(m, shift)
+	elseif s == -1 then return shl(m + shl(1, bits), shift) end
+      else
+	if sar(m, bits) == 0 then return shl(m, shift) end
+      end
+    end
+    werror("out of range immediate `"..imm.."'")
+  elseif match(imm, "^[rf]([1-3]?[0-9])$") or
+	 match(imm, "^([%w_]+):([rf][1-3]?[0-9])$") then
+    werror("expected immediate operand, got register")
+  else
+    waction("IMM", (signed and 32768 or 0)+scale*1024+bits*32+shift, imm)
+    return 0
+  end
+end
+
+local function parse_disp(disp)
+  local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
+  if imm then
+    local r = shl(parse_gpr(reg), 21)
+    local extname = match(imm, "^extern%s+(%S+)$")
+    if extname then
+      waction("REL_EXT", map_extern[extname], nil, 1)
+      return r
+    else
+      return r + parse_imm(imm, 16, 0, 0, true)
+    end
+  end
+  local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
+  if reg and tailr ~= "" then
+    local r, tp = parse_gpr(reg)
+    if tp then
+      waction("IMM", 32768+16*32, format(tp.ctypefmt, tailr))
+      return shl(r, 21)
+    end
+  end
+  werror("bad displacement `"..disp.."'")
+end
+
+local function parse_index(idx)
+  local rt, rs = match(idx, "^(.*)%(([%w_:]+)%)$")
+  if rt then
+    rt = parse_gpr(rt)
+    rs = parse_gpr(rs)
+    return shl(rt, 16) + shl(rs, 21)
+  end
+  werror("bad index `"..idx.."'")
+end
+
+local function parse_label(label, def)
+  local prefix = sub(label, 1, 2)
+  -- =>label (pc label reference)
+  if prefix == "=>" then
+    return "PC", 0, sub(label, 3)
+  end
+  -- ->name (global label reference)
+  if prefix == "->" then
+    return "LG", map_global[sub(label, 3)]
+  end
+  if def then
+    -- [1-9] (local label definition)
+    if match(label, "^[1-9]$") then
+      return "LG", 10+tonumber(label)
+    end
+  else
+    -- [<>][1-9] (local label reference)
+    local dir, lnum = match(label, "^([<>])([1-9])$")
+    if dir then -- Fwd: 1-9, Bkwd: 11-19.
+      return "LG", lnum + (dir == ">" and 0 or 10)
+    end
+    -- extern label (extern label reference)
+    local extname = match(label, "^extern%s+(%S+)$")
+    if extname then
+      return "EXT", map_extern[extname]
+    end
+  end
+  werror("bad label `"..label.."'")
+end
+
+------------------------------------------------------------------------------
+
+-- Handle opcodes defined with template strings.
+map_op[".template__"] = function(params, template, nparams)
+  if not params then return sub(template, 9) end
+  local op = tonumber(sub(template, 1, 8), 16)
+  local n = 1
+
+  -- Limit number of section buffer positions used by a single dasm_put().
+  -- A single opcode needs a maximum of 2 positions (ins/ext).
+  if secpos+2 > maxsecpos then wflush() end
+  local pos = wpos()
+
+  -- Process each character.
+  for p in gmatch(sub(template, 9), ".") do
+    if p == "D" then
+      op = op + shl(parse_gpr(params[n]), 11); n = n + 1
+    elseif p == "T" then
+      op = op + shl(parse_gpr(params[n]), 16); n = n + 1
+    elseif p == "S" then
+      op = op + shl(parse_gpr(params[n]), 21); n = n + 1
+    elseif p == "F" then
+      op = op + shl(parse_fpr(params[n]), 6); n = n + 1
+    elseif p == "G" then
+      op = op + shl(parse_fpr(params[n]), 11); n = n + 1
+    elseif p == "H" then
+      op = op + shl(parse_fpr(params[n]), 16); n = n + 1
+    elseif p == "R" then
+      op = op + shl(parse_fpr(params[n]), 21); n = n + 1
+    elseif p == "I" then
+      op = op + parse_imm(params[n], 16, 0, 0, true); n = n + 1
+    elseif p == "U" then
+      op = op + parse_imm(params[n], 16, 0, 0, false); n = n + 1
+    elseif p == "O" then
+      op = op + parse_disp(params[n]); n = n + 1
+    elseif p == "X" then
+      op = op + parse_index(params[n]); n = n + 1
+    elseif p == "B" or p == "J" then
+      local mode, n, s = parse_label(params[n], false)
+      if p == "B" then n = n + 2048 end
+      waction("REL_"..mode, n, s, 1)
+      n = n + 1
+    elseif p == "A" then
+      op = op + parse_imm(params[n], 5, 6, 0, false); n = n + 1
+    elseif p == "M" then
+      op = op + parse_imm(params[n], 5, 11, 0, false); n = n + 1
+    elseif p == "N" then
+      op = op + parse_imm(params[n], 5, 16, 0, false); n = n + 1
+    elseif p == "C" then
+      op = op + parse_imm(params[n], 3, 18, 0, false); n = n + 1
+    elseif p == "V" then
+      op = op + parse_imm(params[n], 3, 8, 0, false); n = n + 1
+    elseif p == "W" then
+      op = op + parse_imm(params[n], 3, 0, 0, false); n = n + 1
+    elseif p == "Y" then
+      op = op + parse_imm(params[n], 20, 6, 0, false); n = n + 1
+    elseif p == "Z" then
+      op = op + parse_imm(params[n], 10, 6, 0, false); n = n + 1
+    elseif p == "=" then
+      op = op + shl(band(op, 0xf800), 5) -- Copy D to T for clz, clo.
+    else
+      assert(false)
+    end
+  end
+  wputpos(pos, op)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+  if not params then return "prefix" end
+  local prefix = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_1"] = function(params)
+  if not params then return "[1-9] | ->global | =>pcexpr" end
+  if secpos+1 > maxsecpos then wflush() end
+  local mode, n, s = parse_label(params[1], true)
+  if mode == "EXT" then werror("bad label definition") end
+  waction("LABEL_"..mode, n, s, 1)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+map_op[".long_*"] = function(params)
+  if not params then return "imm..." end
+  for _,p in ipairs(params) do
+    local n = tonumber(p)
+    if not n then werror("bad immediate `"..p.."'") end
+    if n < 0 then n = n + 2^32 end
+    wputw(n)
+    if secpos+2 > maxsecpos then wflush() end
+  end
+end
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+  if not params then return "numpow2" end
+  if secpos+1 > maxsecpos then wflush() end
+  local align = tonumber(params[1])
+  if align then
+    local x = align
+    -- Must be a power of 2 in the range (2 ... 256).
+    for i=1,8 do
+      x = x / 2
+      if x == 1 then
+	waction("ALIGN", align-1, nil, 1) -- Action byte is 2**n-1.
+	return
+      end
+    end
+  end
+  werror("bad alignment")
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+  if not params then
+    return nparams == 2 and "name, ctype" or "name, ctype, reg"
+  end
+  local name, ctype, reg = params[1], params[2], params[3]
+  if not match(name, "^[%a_][%w_]*$") then
+    werror("bad type name `"..name.."'")
+  end
+  local tp = map_type[name]
+  if tp then
+    werror("duplicate type `"..name.."'")
+  end
+  -- Add #type to defines. A bit unclean to put it in map_archdef.
+  map_archdef["#"..name] = "sizeof("..ctype..")"
+  -- Add new type and emit shortcut define.
+  local num = ctypenum + 1
+  map_type[name] = {
+    ctype = ctype,
+    ctypefmt = format("Dt%X(%%s)", num),
+    reg = reg,
+  }
+  wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+  ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+  local t = {}
+  for name in pairs(map_type) do t[#t+1] = name end
+  sort(t)
+  out:write("Type definitions:\n")
+  for _,name in ipairs(t) do
+    local tp = map_type[name]
+    local reg = tp.reg or ""
+    out:write(format("  %-20s %-20s %s\n", name, tp.ctype, reg))
+  end
+  out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+  waction("SECTION", num)
+  wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+  out:write(format("DynASM %s version %s, released %s\n\n",
+    _info.arch, _info.version, _info.release))
+  dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+  dumptypes(out, lvl)
+  dumpglobals(out, lvl)
+  dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+  wline, werror, wfatal, wwarn = wl, we, wf, ww
+  return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+  g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+  setmetatable(map_op, { __index = map_coreop })
+  setmetatable(map_def, { __index = map_archdef })
+  return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/lib/luajit/dynasm/dasm_ppc.h b/lib/luajit/dynasm/dasm_ppc.h
new file mode 100644
index 00000000..5ccff250
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_ppc.h
@@ -0,0 +1,412 @@
+/*
+** DynASM PPC encoding engine.
+** Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+** Released under the MIT license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH		"ppc"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d)	0
+#endif
+
+/* Action definitions. */
+enum {
+  DASM_STOP, DASM_SECTION, DASM_ESC, DASM_REL_EXT,
+  /* The following actions need a buffer position. */
+  DASM_ALIGN, DASM_REL_LG, DASM_LABEL_LG,
+  /* The following actions also have an argument. */
+  DASM_REL_PC, DASM_LABEL_PC, DASM_IMM,
+  DASM__MAX
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS		25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK		0x00000000
+#define DASM_S_NOMEM		0x01000000
+#define DASM_S_PHASE		0x02000000
+#define DASM_S_MATCH_SEC	0x03000000
+#define DASM_S_RANGE_I		0x11000000
+#define DASM_S_RANGE_SEC	0x12000000
+#define DASM_S_RANGE_LG		0x13000000
+#define DASM_S_RANGE_PC		0x14000000
+#define DASM_S_RANGE_REL	0x15000000
+#define DASM_S_UNDEF_LG		0x21000000
+#define DASM_S_UNDEF_PC		0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos)	((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos)	((pos)&0xff000000)
+#define DASM_SEC2POS(sec)	((sec)<<24)
+#define DASM_POS2SEC(pos)	((pos)>>24)
+#define DASM_POS2PTR(D, pos)	(D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned int *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+  int *rbuf;		/* Biased buffer pointer (negative section bias). */
+  int *buf;		/* True buffer pointer. */
+  size_t bsize;		/* Buffer size in bytes. */
+  int pos;		/* Biased buffer position. */
+  int epos;		/* End of biased buffer position - max single put. */
+  int ofs;		/* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+  size_t psize;			/* Allocated size of this structure. */
+  dasm_ActList actionlist;	/* Current actionlist pointer. */
+  int *lglabels;		/* Local/global chain/pos ptrs. */
+  size_t lgsize;
+  int *pclabels;		/* PC label chains/pos ptrs. */
+  size_t pcsize;
+  void **globals;		/* Array of globals (bias -10). */
+  dasm_Section *section;	/* Pointer to active section. */
+  size_t codesize;		/* Total size of all code sections. */
+  int maxsection;		/* 0 <= sectionidx < maxsection. */
+  int status;			/* Status code. */
+  dasm_Section sections[1];	/* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms)	(sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+  dasm_State *D;
+  size_t psz = 0;
+  int i;
+  Dst_REF = NULL;
+  DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+  D = Dst_REF;
+  D->psize = psz;
+  D->lglabels = NULL;
+  D->lgsize = 0;
+  D->pclabels = NULL;
+  D->pcsize = 0;
+  D->globals = NULL;
+  D->maxsection = maxsection;
+  for (i = 0; i < maxsection; i++) {
+    D->sections[i].buf = NULL;  /* Need this for pass3. */
+    D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+    D->sections[i].bsize = 0;
+    D->sections[i].epos = 0;  /* Wrong, but is recalculated after resize. */
+  }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  for (i = 0; i < D->maxsection; i++)
+    if (D->sections[i].buf)
+      DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+  if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+  if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+  DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+  dasm_State *D = Dst_REF;
+  D->globals = gl - 10;  /* Negative bias to compensate for locals. */
+  DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+  dasm_State *D = Dst_REF;
+  size_t osz = D->pcsize;
+  DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+  memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  D->actionlist = (dasm_ActList)actionlist;
+  D->status = DASM_S_OK;
+  D->section = &D->sections[0];
+  memset((void *)D->lglabels, 0, D->lgsize);
+  if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+  for (i = 0; i < D->maxsection; i++) {
+    D->sections[i].pos = DASM_SEC2POS(i);
+    D->sections[i].ofs = 0;
+  }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) { \
+    D->status = DASM_S_##st|(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+  do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+    D->status = DASM_S_RANGE_##st|(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st)	((void)0)
+#define CKPL(kind, st)	((void)0)
+#endif
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+  va_list ap;
+  dasm_State *D = Dst_REF;
+  dasm_ActList p = D->actionlist + start;
+  dasm_Section *sec = D->section;
+  int pos = sec->pos, ofs = sec->ofs;
+  int *b;
+
+  if (pos >= sec->epos) {
+    DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+      sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+    sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+    sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+  }
+
+  b = sec->rbuf;
+  b[pos++] = start;
+
+  va_start(ap, start);
+  while (1) {
+    unsigned int ins = *p++;
+    unsigned int action = (ins >> 16);
+    if (action >= DASM__MAX) {
+      ofs += 4;
+    } else {
+      int *pl, n = action >= DASM_REL_PC ? va_arg(ap, int) : 0;
+      switch (action) {
+      case DASM_STOP: goto stop;
+      case DASM_SECTION:
+	n = (ins & 255); CK(n < D->maxsection, RANGE_SEC);
+	D->section = &D->sections[n]; goto stop;
+      case DASM_ESC: p++; ofs += 4; break;
+      case DASM_REL_EXT: break;
+      case DASM_ALIGN: ofs += (ins & 255); b[pos++] = ofs; break;
+      case DASM_REL_LG:
+	n = (ins & 2047) - 10; pl = D->lglabels + n;
+	/* Bkwd rel or global. */
+	if (n >= 0) { CK(n>=10||*pl<0, RANGE_LG); CKPL(lg, LG); goto putrel; }
+	pl += 10; n = *pl;
+	if (n < 0) n = 0;  /* Start new chain for fwd rel if label exists. */
+	goto linkrel;
+      case DASM_REL_PC:
+	pl = D->pclabels + n; CKPL(pc, PC);
+      putrel:
+	n = *pl;
+	if (n < 0) {  /* Label exists. Get label pos and store it. */
+	  b[pos] = -n;
+	} else {
+      linkrel:
+	  b[pos] = n;  /* Else link to rel chain, anchored at label. */
+	  *pl = pos;
+	}
+	pos++;
+	break;
+      case DASM_LABEL_LG:
+	pl = D->lglabels + (ins & 2047) - 10; CKPL(lg, LG); goto putlabel;
+      case DASM_LABEL_PC:
+	pl = D->pclabels + n; CKPL(pc, PC);
+      putlabel:
+	n = *pl;  /* n > 0: Collapse rel chain and replace with label pos. */
+	while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos;
+	}
+	*pl = -pos;  /* Label exists now. */
+	b[pos++] = ofs;  /* Store pass1 offset estimate. */
+	break;
+      case DASM_IMM:
+#ifdef DASM_CHECKS
+	CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
+#endif
+	n >>= ((ins>>10)&31);
+#ifdef DASM_CHECKS
+	if (ins & 0x8000)
+	  CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
+	else
+	  CK((n>>((ins>>5)&31)) == 0, RANGE_I);
+#endif
+	b[pos++] = n;
+	break;
+      }
+    }
+  }
+stop:
+  va_end(ap);
+  sec->pos = pos;
+  sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+  dasm_State *D = Dst_REF;
+  int secnum;
+  int ofs = 0;
+
+#ifdef DASM_CHECKS
+  *szp = 0;
+  if (D->status != DASM_S_OK) return D->status;
+  {
+    int pc;
+    for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+      if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+  }
+#endif
+
+  { /* Handle globals not defined in this translation unit. */
+    int idx;
+    for (idx = 20; idx*sizeof(int) < D->lgsize; idx++) {
+      int n = D->lglabels[idx];
+      /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+      while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+    }
+  }
+
+  /* Combine all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->rbuf;
+    int pos = DASM_SEC2POS(secnum);
+    int lastpos = sec->pos;
+
+    while (pos != lastpos) {
+      dasm_ActList p = D->actionlist + b[pos++];
+      while (1) {
+	unsigned int ins = *p++;
+	unsigned int action = (ins >> 16);
+	switch (action) {
+	case DASM_STOP: case DASM_SECTION: goto stop;
+	case DASM_ESC: p++; break;
+	case DASM_REL_EXT: break;
+	case DASM_ALIGN: ofs -= (b[pos++] + ofs) & (ins & 255); break;
+	case DASM_REL_LG: case DASM_REL_PC: pos++; break;
+	case DASM_LABEL_LG: case DASM_LABEL_PC: b[pos++] += ofs; break;
+	case DASM_IMM: pos++; break;
+	}
+      }
+      stop: (void)0;
+    }
+    ofs += sec->ofs;  /* Next section starts right after current section. */
+  }
+
+  D->codesize = ofs;  /* Total size of all code sections */
+  *szp = ofs;
+  return DASM_S_OK;
+}
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) return DASM_S_##st|(p-D->actionlist-1); } while (0)
+#else
+#define CK(x, st)	((void)0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+  dasm_State *D = Dst_REF;
+  char *base = (char *)buffer;
+  unsigned int *cp = (unsigned int *)buffer;
+  int secnum;
+
+  /* Encode all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->buf;
+    int *endb = sec->rbuf + sec->pos;
+
+    while (b != endb) {
+      dasm_ActList p = D->actionlist + *b++;
+      while (1) {
+	unsigned int ins = *p++;
+	unsigned int action = (ins >> 16);
+	int n = (action >= DASM_ALIGN && action < DASM__MAX) ? *b++ : 0;
+	switch (action) {
+	case DASM_STOP: case DASM_SECTION: goto stop;
+	case DASM_ESC: *cp++ = *p++; break;
+	case DASM_REL_EXT:
+	  n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins & 2047), 1) - 4;
+	  goto patchrel;
+	case DASM_ALIGN:
+	  ins &= 255; while ((((char *)cp - base) & ins)) *cp++ = 0x60000000;
+	  break;
+	case DASM_REL_LG:
+	  CK(n >= 0, UNDEF_LG);
+	case DASM_REL_PC:
+	  CK(n >= 0, UNDEF_PC);
+	  n = *DASM_POS2PTR(D, n) - (int)((char *)cp - base);
+	patchrel:
+	  CK((n & 3) == 0 &&
+	      (((n+4) + ((ins & 2048) ? 0x00008000 : 0x02000000)) >>
+	       ((ins & 2048) ? 16 : 26)) == 0, RANGE_REL);
+	  cp[-1] |= ((n+4) & ((ins & 2048) ? 0x0000fffc: 0x03fffffc));
+	  break;
+	case DASM_LABEL_LG:
+	  ins &= 2047; if (ins >= 20) D->globals[ins-10] = (void *)(base + n);
+	  break;
+	case DASM_LABEL_PC: break;
+	case DASM_IMM:
+	  cp[-1] |= (n & ((1<<((ins>>5)&31))-1)) << (ins&31);
+	  break;
+	default: *cp++ = ins; break;
+	}
+      }
+      stop: (void)0;
+    }
+  }
+
+  if (base + D->codesize != (char *)cp)  /* Check for phase errors. */
+    return DASM_S_PHASE;
+  return DASM_S_OK;
+}
+#undef CK
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+  dasm_State *D = Dst_REF;
+  if (pc*sizeof(int) < D->pcsize) {
+    int pos = D->pclabels[pc];
+    if (pos < 0) return *DASM_POS2PTR(D, -pos);
+    if (pos > 0) return -1;  /* Undefined. */
+  }
+  return -2;  /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+  dasm_State *D = Dst_REF;
+  if (D->status == DASM_S_OK) {
+    int i;
+    for (i = 1; i <= 9; i++) {
+      if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_LG|i; break; }
+      D->lglabels[i] = 0;
+    }
+  }
+  if (D->status == DASM_S_OK && secmatch >= 0 &&
+      D->section != &D->sections[secmatch])
+    D->status = DASM_S_MATCH_SEC|(D->section-D->sections);
+  return D->status;
+}
+#endif
+
diff --git a/lib/luajit/dynasm/dasm_ppc.lua b/lib/luajit/dynasm/dasm_ppc.lua
new file mode 100644
index 00000000..61da50ef
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_ppc.lua
@@ -0,0 +1,1249 @@
+------------------------------------------------------------------------------
+-- DynASM PPC module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Module information:
+local _info = {
+  arch =	"ppc",
+  description =	"DynASM PPC module",
+  version =	"1.3.0",
+  vernum =	 10300,
+  release =	"2011-05-05",
+  author =	"Mike Pall",
+  license =	"MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, setmetatable = assert, setmetatable
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local match, gmatch = _s.match, _s.gmatch
+local concat, sort = table.concat, table.sort
+local bit = bit or require("bit")
+local band, shl, shr, sar = bit.band, bit.lshift, bit.rshift, bit.arshift
+local tohex = bit.tohex
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+  "STOP", "SECTION", "ESC", "REL_EXT",
+  "ALIGN", "REL_LG", "LABEL_LG",
+  "REL_PC", "LABEL_PC", "IMM",
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number.
+local map_action = {}
+for n,name in ipairs(action_names) do
+  map_action[name] = n-1
+end
+
+-- Action list buffer.
+local actlist = {}
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+  out:write("DynASM encoding engine action codes:\n")
+  for n,name in ipairs(action_names) do
+    local num = map_action[name]
+    out:write(format("  %-10s %02X  %d\n", name, num, num))
+  end
+  out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+  local nn = #actlist
+  if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
+  out:write("static const unsigned int ", name, "[", nn, "] = {\n")
+  for i = 1,nn-1 do
+    assert(out:write("0x", tohex(actlist[i]), ",\n"))
+  end
+  assert(out:write("0x", tohex(actlist[nn]), "\n};\n\n"))
+end
+
+------------------------------------------------------------------------------
+
+-- Add word to action list.
+local function wputxw(n)
+  assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+  actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, val, a, num)
+  local w = assert(map_action[action], "bad action name `"..action.."'")
+  wputxw(w * 0x10000 + (val or 0))
+  if a then actargs[#actargs+1] = a end
+  if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+  if #actlist == actargs[1] then return end -- Nothing to flush.
+  if not term then waction("STOP") end -- Terminate action list.
+  wline(format("dasm_put(Dst, %s);", concat(actargs, ", ")), true)
+  actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+  secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped word.
+local function wputw(n)
+  if n <= 0xffffff then waction("ESC") end
+  wputxw(n)
+end
+
+-- Reserve position for word.
+local function wpos()
+  local pos = #actlist+1
+  actlist[pos] = ""
+  return pos
+end
+
+-- Store word to reserved position.
+local function wputpos(pos, n)
+  assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
+  actlist[pos] = n
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 20
+local map_global = setmetatable({}, { __index = function(t, name)
+  if not match(name, "^[%a_][%w_]*$") then werror("bad global label") end
+  local n = next_global
+  if n > 2047 then werror("too many global labels") end
+  next_global = n + 1
+  t[name] = n
+  return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("Global labels:\n")
+  for i=20,next_global-1 do
+    out:write(format("  %s\n", t[i]))
+  end
+  out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("enum {\n")
+  for i=20,next_global-1 do
+    out:write("  ", prefix, t[i], ",\n")
+  end
+  out:write("  ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=20,next_global-1 do
+    out:write("  \"", t[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = 0
+local map_extern_ = {}
+local map_extern = setmetatable({}, { __index = function(t, name)
+  -- No restrictions on the name for now.
+  local n = next_extern
+  if n > 2047 then werror("too many extern labels") end
+  next_extern = n + 1
+  t[name] = n
+  map_extern_[n] = name
+  return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+  out:write("Extern labels:\n")
+  for i=0,next_extern-1 do
+    out:write(format("  %s\n", map_extern_[i]))
+  end
+  out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=0,next_extern-1 do
+    out:write("  \"", map_extern_[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+local map_archdef = { sp = "r1" } -- Ext. register name -> int. name.
+
+local map_type = {}		-- Type name -> { ctype, reg }
+local ctypenum = 0		-- Type number (for Dt... macros).
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+  if s == "r1" then return "sp" end
+  return s
+end
+
+local map_cond = {
+  lt = 0, gt = 1, eq = 2, so = 3,
+  ge = 4, le = 5, ne = 6, ns = 7,
+}
+
+------------------------------------------------------------------------------
+
+-- Template strings for PPC instructions.
+local map_op = {
+  tdi_3 =	"08000000ARI",
+  twi_3 =	"0c000000ARI",
+  mulli_3 =	"1c000000RRI",
+  subfic_3 =	"20000000RRI",
+  cmplwi_3 =	"28000000XRU",
+  cmplwi_2 =	"28000000-RU",
+  cmpldi_3 =	"28200000XRU",
+  cmpldi_2 =	"28200000-RU",
+  cmpwi_3 =	"2c000000XRI",
+  cmpwi_2 =	"2c000000-RI",
+  cmpdi_3 =	"2c200000XRI",
+  cmpdi_2 =	"2c200000-RI",
+  addic_3 =	"30000000RRI",
+  ["addic._3"] = "34000000RRI",
+  addi_3 =	"38000000RR0I",
+  li_2 =	"38000000RI",
+  la_2 =	"38000000RD",
+  addis_3 =	"3c000000RR0I",
+  lis_2 =	"3c000000RI",
+  lus_2 =	"3c000000RU",
+  bc_3 =	"40000000AAK",
+  bcl_3 =	"40000001AAK",
+  bdnz_1 =	"42000000K",
+  bdz_1 =	"42400000K",
+  sc_0 =	"44000000",
+  b_1 =		"48000000J",
+  bl_1 =	"48000001J",
+  rlwimi_5 =	"50000000RR~AAA.",
+  rlwinm_5 =	"54000000RR~AAA.",
+  rlwnm_5 =	"5c000000RR~RAA.",
+  ori_3 =	"60000000RR~U",
+  nop_0 =	"60000000",
+  oris_3 =	"64000000RR~U",
+  xori_3 =	"68000000RR~U",
+  xoris_3 =	"6c000000RR~U",
+  ["andi._3"] =	"70000000RR~U",
+  ["andis._3"] = "74000000RR~U",
+  lwz_2 =	"80000000RD",
+  lwzu_2 =	"84000000RD",
+  lbz_2 =	"88000000RD",
+  lbzu_2 =	"8c000000RD",
+  stw_2 =	"90000000RD",
+  stwu_2 =	"94000000RD",
+  stb_2 =	"98000000RD",
+  stbu_2 =	"9c000000RD",
+  lhz_2 =	"a0000000RD",
+  lhzu_2 =	"a4000000RD",
+  lha_2 =	"a8000000RD",
+  lhau_2 =	"ac000000RD",
+  sth_2 =	"b0000000RD",
+  sthu_2 =	"b4000000RD",
+  lmw_2 =	"b8000000RD",
+  stmw_2 =	"bc000000RD",
+  lfs_2 =	"c0000000FD",
+  lfsu_2 =	"c4000000FD",
+  lfd_2 =	"c8000000FD",
+  lfdu_2 =	"cc000000FD",
+  stfs_2 =	"d0000000FD",
+  stfsu_2 =	"d4000000FD",
+  stfd_2 =	"d8000000FD",
+  stfdu_2 =	"dc000000FD",
+  ld_2 =	"e8000000RD", -- NYI: displacement must be divisible by 4.
+  ldu_2 =	"e8000001RD",
+  lwa_2 =	"e8000002RD",
+  std_2 =	"f8000000RD",
+  stdu_2 =	"f8000001RD",
+
+  -- Primary opcode 19:
+  mcrf_2 =	"4c000000XX",
+  isync_0 =	"4c00012c",
+  crnor_3 =	"4c000042CCC",
+  crnot_2 =	"4c000042CC=",
+  crandc_3 =	"4c000102CCC",
+  crxor_3 =	"4c000182CCC",
+  crclr_1 =	"4c000182C==",
+  crnand_3 =	"4c0001c2CCC",
+  crand_3 =	"4c000202CCC",
+  creqv_3 =	"4c000242CCC",
+  crset_1 =	"4c000242C==",
+  crorc_3 =	"4c000342CCC",
+  cror_3 =	"4c000382CCC",
+  crmove_2 =	"4c000382CC=",
+  bclr_2 =	"4c000020AA",
+  bclrl_2 =	"4c000021AA",
+  bcctr_2 =	"4c000420AA",
+  bcctrl_2 =	"4c000421AA",
+  blr_0 =	"4e800020",
+  blrl_0 =	"4e800021",
+  bctr_0 =	"4e800420",
+  bctrl_0 =	"4e800421",
+
+  -- Primary opcode 31:
+  cmpw_3 =	"7c000000XRR",
+  cmpw_2 =	"7c000000-RR",
+  cmpd_3 =	"7c200000XRR",
+  cmpd_2 =	"7c200000-RR",
+  tw_3 =	"7c000008ARR",
+  subfc_3 =	"7c000010RRR.",
+  subc_3 =	"7c000010RRR~.",
+  mulhdu_3 =	"7c000012RRR.",
+  addc_3 =	"7c000014RRR.",
+  mulhwu_3 =	"7c000016RRR.",
+  isel_4 =	"7c00001eRRRC",
+  isellt_3 =	"7c00001eRRR",
+  iselgt_3 =	"7c00005eRRR",
+  iseleq_3 =	"7c00009eRRR",
+  mfcr_1 =	"7c000026R",
+  mfocrf_2 =	"7c100026RG",
+  mtcrf_2 =	"7c000120GR",
+  mtocrf_2 =	"7c100120GR",
+  lwarx_3 =	"7c000028RR0R",
+  ldx_3 =	"7c00002aRR0R",
+  lwzx_3 =	"7c00002eRR0R",
+  slw_3 =	"7c000030RR~R.",
+  cntlzw_2 =	"7c000034RR~",
+  sld_3 =	"7c000036RR~R.",
+  and_3 =	"7c000038RR~R.",
+  cmplw_3 =	"7c000040XRR",
+  cmplw_2 =	"7c000040-RR",
+  cmpld_3 =	"7c200040XRR",
+  cmpld_2 =	"7c200040-RR",
+  subf_3 =	"7c000050RRR.",
+  sub_3 =	"7c000050RRR~.",
+  ldux_3 =	"7c00006aRR0R",
+  dcbst_2 =	"7c00006c-RR",
+  lwzux_3 =	"7c00006eRR0R",
+  cntlzd_2 =	"7c000074RR~",
+  andc_3 =	"7c000078RR~R.",
+  td_3 =	"7c000088ARR",
+  mulhd_3 =	"7c000092RRR.",
+  mulhw_3 =	"7c000096RRR.",
+  ldarx_3 =	"7c0000a8RR0R",
+  dcbf_2 =	"7c0000ac-RR",
+  lbzx_3 =	"7c0000aeRR0R",
+  neg_2 =	"7c0000d0RR.",
+  lbzux_3 =	"7c0000eeRR0R",
+  popcntb_2 =	"7c0000f4RR~",
+  not_2 =	"7c0000f8RR~%.",
+  nor_3 =	"7c0000f8RR~R.",
+  subfe_3 =	"7c000110RRR.",
+  sube_3 =	"7c000110RRR~.",
+  adde_3 =	"7c000114RRR.",
+  stdx_3 =	"7c00012aRR0R",
+  stwcx_3 =	"7c00012cRR0R.",
+  stwx_3 =	"7c00012eRR0R",
+  prtyw_2 =	"7c000134RR~",
+  stdux_3 =	"7c00016aRR0R",
+  stwux_3 =	"7c00016eRR0R",
+  prtyd_2 =	"7c000174RR~",
+  subfze_2 =	"7c000190RR.",
+  addze_2 =	"7c000194RR.",
+  stdcx_3 =	"7c0001acRR0R.",
+  stbx_3 =	"7c0001aeRR0R",
+  subfme_2 =	"7c0001d0RR.",
+  mulld_3 =	"7c0001d2RRR.",
+  addme_2 =	"7c0001d4RR.",
+  mullw_3 =	"7c0001d6RRR.",
+  dcbtst_2 =	"7c0001ec-RR",
+  stbux_3 =	"7c0001eeRR0R",
+  add_3 =	"7c000214RRR.",
+  dcbt_2 =	"7c00022c-RR",
+  lhzx_3 =	"7c00022eRR0R",
+  eqv_3 =	"7c000238RR~R.",
+  eciwx_3 =	"7c00026cRR0R",
+  lhzux_3 =	"7c00026eRR0R",
+  xor_3 =	"7c000278RR~R.",
+  mfspefscr_1 =	"7c0082a6R",
+  mfxer_1 =	"7c0102a6R",
+  mflr_1 =	"7c0802a6R",
+  mfctr_1 =	"7c0902a6R",
+  lwax_3 =	"7c0002aaRR0R",
+  lhax_3 =	"7c0002aeRR0R",
+  mftb_1 =	"7c0c42e6R",
+  mftbu_1 =	"7c0d42e6R",
+  lwaux_3 =	"7c0002eaRR0R",
+  lhaux_3 =	"7c0002eeRR0R",
+  sthx_3 =	"7c00032eRR0R",
+  orc_3 =	"7c000338RR~R.",
+  ecowx_3 =	"7c00036cRR0R",
+  sthux_3 =	"7c00036eRR0R",
+  or_3 =	"7c000378RR~R.",
+  mr_2 =	"7c000378RR~%.",
+  divdu_3 =	"7c000392RRR.",
+  divwu_3 =	"7c000396RRR.",
+  mtspefscr_1 =	"7c0083a6R",
+  mtxer_1 =	"7c0103a6R",
+  mtlr_1 =	"7c0803a6R",
+  mtctr_1 =	"7c0903a6R",
+  dcbi_2 =	"7c0003ac-RR",
+  nand_3 =	"7c0003b8RR~R.",
+  divd_3 =	"7c0003d2RRR.",
+  divw_3 =	"7c0003d6RRR.",
+  cmpb_3 =	"7c0003f8RR~R.",
+  mcrxr_1 =	"7c000400X",
+  subfco_3 =	"7c000410RRR.",
+  subco_3 =	"7c000410RRR~.",
+  addco_3 =	"7c000414RRR.",
+  ldbrx_3 =	"7c000428RR0R",
+  lswx_3 =	"7c00042aRR0R",
+  lwbrx_3 =	"7c00042cRR0R",
+  lfsx_3 =	"7c00042eFR0R",
+  srw_3 =	"7c000430RR~R.",
+  srd_3 =	"7c000436RR~R.",
+  subfo_3 =	"7c000450RRR.",
+  subo_3 =	"7c000450RRR~.",
+  lfsux_3 =	"7c00046eFR0R",
+  lswi_3 =	"7c0004aaRR0A",
+  sync_0 =	"7c0004ac",
+  lwsync_0 =	"7c2004ac",
+  ptesync_0 =	"7c4004ac",
+  lfdx_3 =	"7c0004aeFR0R",
+  nego_2 =	"7c0004d0RR.",
+  lfdux_3 =	"7c0004eeFR0R",
+  subfeo_3 =	"7c000510RRR.",
+  subeo_3 =	"7c000510RRR~.",
+  addeo_3 =	"7c000514RRR.",
+  stdbrx_3 =	"7c000528RR0R",
+  stswx_3 =	"7c00052aRR0R",
+  stwbrx_3 =	"7c00052cRR0R",
+  stfsx_3 =	"7c00052eFR0R",
+  stfsux_3 =	"7c00056eFR0R",
+  subfzeo_2 =	"7c000590RR.",
+  addzeo_2 =	"7c000594RR.",
+  stswi_3 =	"7c0005aaRR0A",
+  stfdx_3 =	"7c0005aeFR0R",
+  subfmeo_2 =	"7c0005d0RR.",
+  mulldo_3 =	"7c0005d2RRR.",
+  addmeo_2 =	"7c0005d4RR.",
+  mullwo_3 =	"7c0005d6RRR.",
+  dcba_2 =	"7c0005ec-RR",
+  stfdux_3 =	"7c0005eeFR0R",
+  addo_3 =	"7c000614RRR.",
+  lhbrx_3 =	"7c00062cRR0R",
+  sraw_3 =	"7c000630RR~R.",
+  srad_3 =	"7c000634RR~R.",
+  srawi_3 =	"7c000670RR~A.",
+  sradi_3 =	"7c000674RR~H.",
+  eieio_0 =	"7c0006ac",
+  lfiwax_3 =	"7c0006aeFR0R",
+  sthbrx_3 =	"7c00072cRR0R",
+  extsh_2 =	"7c000734RR~.",
+  extsb_2 =	"7c000774RR~.",
+  divduo_3 =	"7c000792RRR.",
+  divwou_3 =	"7c000796RRR.",
+  icbi_2 =	"7c0007ac-RR",
+  stfiwx_3 =	"7c0007aeFR0R",
+  extsw_2 =	"7c0007b4RR~.",
+  divdo_3 =	"7c0007d2RRR.",
+  divwo_3 =	"7c0007d6RRR.",
+  dcbz_2 =	"7c0007ec-RR",
+
+  -- Primary opcode 30:
+  rldicl_4 =	"78000000RR~HM.",
+  rldicr_4 =	"78000004RR~HM.",
+  rldic_4 =	"78000008RR~HM.",
+  rldimi_4 =	"7800000cRR~HM.",
+  rldcl_4 =	"78000010RR~RM.",
+  rldcr_4 =	"78000012RR~RM.",
+
+  -- Primary opcode 59:
+  fdivs_3 =	"ec000024FFF.",
+  fsubs_3 =	"ec000028FFF.",
+  fadds_3 =	"ec00002aFFF.",
+  fsqrts_2 =	"ec00002cF-F.",
+  fres_2 =	"ec000030F-F.",
+  fmuls_3 =	"ec000032FF-F.",
+  frsqrtes_2 =	"ec000034F-F.",
+  fmsubs_4 =	"ec000038FFFF~.",
+  fmadds_4 =	"ec00003aFFFF~.",
+  fnmsubs_4 =	"ec00003cFFFF~.",
+  fnmadds_4 =	"ec00003eFFFF~.",
+
+  -- Primary opcode 63:
+  fdiv_3 =	"fc000024FFF.",
+  fsub_3 =	"fc000028FFF.",
+  fadd_3 =	"fc00002aFFF.",
+  fsqrt_2 =	"fc00002cF-F.",
+  fsel_4 =	"fc00002eFFFF~.",
+  fre_2 =	"fc000030F-F.",
+  fmul_3 =	"fc000032FF-F.",
+  frsqrte_2 =	"fc000034F-F.",
+  fmsub_4 =	"fc000038FFFF~.",
+  fmadd_4 =	"fc00003aFFFF~.",
+  fnmsub_4 =	"fc00003cFFFF~.",
+  fnmadd_4 =	"fc00003eFFFF~.",
+  fcmpu_3 =	"fc000000XFF",
+  fcpsgn_3 =	"fc000010FFF.",
+  fcmpo_3 =	"fc000040XFF",
+  mtfsb1_1 =	"fc00004cA",
+  fneg_2 =	"fc000050F-F.",
+  mcrfs_2 =	"fc000080XX",
+  mtfsb0_1 =	"fc00008cA",
+  fmr_2 =	"fc000090F-F.",
+  frsp_2 =	"fc000018F-F.",
+  fctiw_2 =	"fc00001cF-F.",
+  fctiwz_2 =	"fc00001eF-F.",
+  mtfsfi_2 =	"fc00010cAA", -- NYI: upshift.
+  fnabs_2 =	"fc000110F-F.",
+  fabs_2 =	"fc000210F-F.",
+  frin_2 =	"fc000310F-F.",
+  friz_2 =	"fc000350F-F.",
+  frip_2 =	"fc000390F-F.",
+  frim_2 =	"fc0003d0F-F.",
+  mffs_1 =	"fc00048eF.",
+  -- NYI: mtfsf, mtfsb0, mtfsb1.
+  fctid_2 =	"fc00065cF-F.",
+  fctidz_2 =	"fc00065eF-F.",
+  fcfid_2 =	"fc00069cF-F.",
+
+  -- Primary opcode 4, SPE APU extension:
+  evaddw_3 =		"10000200RRR",
+  evaddiw_3 =		"10000202RAR~",
+  evsubw_3 =		"10000204RRR~",
+  evsubiw_3 =		"10000206RAR~",
+  evabs_2 =		"10000208RR",
+  evneg_2 =		"10000209RR",
+  evextsb_2 =		"1000020aRR",
+  evextsh_2 =		"1000020bRR",
+  evrndw_2 =		"1000020cRR",
+  evcntlzw_2 =		"1000020dRR",
+  evcntlsw_2 =		"1000020eRR",
+  brinc_3 =		"1000020fRRR",
+  evand_3 =		"10000211RRR",
+  evandc_3 =		"10000212RRR",
+  evxor_3 =		"10000216RRR",
+  evor_3 =		"10000217RRR",
+  evmr_2 =		"10000217RR=",
+  evnor_3 =		"10000218RRR",
+  evnot_2 =		"10000218RR=",
+  eveqv_3 =		"10000219RRR",
+  evorc_3 =		"1000021bRRR",
+  evnand_3 =		"1000021eRRR",
+  evsrwu_3 =		"10000220RRR",
+  evsrws_3 =		"10000221RRR",
+  evsrwiu_3 =		"10000222RRA",
+  evsrwis_3 =		"10000223RRA",
+  evslw_3 =		"10000224RRR",
+  evslwi_3 =		"10000226RRA",
+  evrlw_3 =		"10000228RRR",
+  evsplati_2 =		"10000229RS",
+  evrlwi_3 =		"1000022aRRA",
+  evsplatfi_2 =		"1000022bRS",
+  evmergehi_3 =		"1000022cRRR",
+  evmergelo_3 =		"1000022dRRR",
+  evcmpgtu_3 =		"10000230XRR",
+  evcmpgtu_2 =		"10000230-RR",
+  evcmpgts_3 =		"10000231XRR",
+  evcmpgts_2 =		"10000231-RR",
+  evcmpltu_3 =		"10000232XRR",
+  evcmpltu_2 =		"10000232-RR",
+  evcmplts_3 =		"10000233XRR",
+  evcmplts_2 =		"10000233-RR",
+  evcmpeq_3 =		"10000234XRR",
+  evcmpeq_2 =		"10000234-RR",
+  evsel_4 =		"10000278RRRW",
+  evsel_3 =		"10000278RRR",
+  evfsadd_3 =		"10000280RRR",
+  evfssub_3 =		"10000281RRR",
+  evfsabs_2 =		"10000284RR",
+  evfsnabs_2 =		"10000285RR",
+  evfsneg_2 =		"10000286RR",
+  evfsmul_3 =		"10000288RRR",
+  evfsdiv_3 =		"10000289RRR",
+  evfscmpgt_3 =		"1000028cXRR",
+  evfscmpgt_2 =		"1000028c-RR",
+  evfscmplt_3 =		"1000028dXRR",
+  evfscmplt_2 =		"1000028d-RR",
+  evfscmpeq_3 =		"1000028eXRR",
+  evfscmpeq_2 =		"1000028e-RR",
+  evfscfui_2 =		"10000290R-R",
+  evfscfsi_2 =		"10000291R-R",
+  evfscfuf_2 =		"10000292R-R",
+  evfscfsf_2 =		"10000293R-R",
+  evfsctui_2 =		"10000294R-R",
+  evfsctsi_2 =		"10000295R-R",
+  evfsctuf_2 =		"10000296R-R",
+  evfsctsf_2 =		"10000297R-R",
+  evfsctuiz_2 =		"10000298R-R",
+  evfsctsiz_2 =		"1000029aR-R",
+  evfststgt_3 =		"1000029cXRR",
+  evfststgt_2 =		"1000029c-RR",
+  evfststlt_3 =		"1000029dXRR",
+  evfststlt_2 =		"1000029d-RR",
+  evfststeq_3 =		"1000029eXRR",
+  evfststeq_2 =		"1000029e-RR",
+  efsadd_3 =		"100002c0RRR",
+  efssub_3 =		"100002c1RRR",
+  efsabs_2 =		"100002c4RR",
+  efsnabs_2 =		"100002c5RR",
+  efsneg_2 =		"100002c6RR",
+  efsmul_3 =		"100002c8RRR",
+  efsdiv_3 =		"100002c9RRR",
+  efscmpgt_3 =		"100002ccXRR",
+  efscmpgt_2 =		"100002cc-RR",
+  efscmplt_3 =		"100002cdXRR",
+  efscmplt_2 =		"100002cd-RR",
+  efscmpeq_3 =		"100002ceXRR",
+  efscmpeq_2 =		"100002ce-RR",
+  efscfd_2 =		"100002cfR-R",
+  efscfui_2 =		"100002d0R-R",
+  efscfsi_2 =		"100002d1R-R",
+  efscfuf_2 =		"100002d2R-R",
+  efscfsf_2 =		"100002d3R-R",
+  efsctui_2 =		"100002d4R-R",
+  efsctsi_2 =		"100002d5R-R",
+  efsctuf_2 =		"100002d6R-R",
+  efsctsf_2 =		"100002d7R-R",
+  efsctuiz_2 =		"100002d8R-R",
+  efsctsiz_2 =		"100002daR-R",
+  efststgt_3 =		"100002dcXRR",
+  efststgt_2 =		"100002dc-RR",
+  efststlt_3 =		"100002ddXRR",
+  efststlt_2 =		"100002dd-RR",
+  efststeq_3 =		"100002deXRR",
+  efststeq_2 =		"100002de-RR",
+  efdadd_3 =		"100002e0RRR",
+  efdsub_3 =		"100002e1RRR",
+  efdcfuid_2 =		"100002e2R-R",
+  efdcfsid_2 =		"100002e3R-R",
+  efdabs_2 =		"100002e4RR",
+  efdnabs_2 =		"100002e5RR",
+  efdneg_2 =		"100002e6RR",
+  efdmul_3 =		"100002e8RRR",
+  efddiv_3 =		"100002e9RRR",
+  efdctuidz_2 =		"100002eaR-R",
+  efdctsidz_2 =		"100002ebR-R",
+  efdcmpgt_3 =		"100002ecXRR",
+  efdcmpgt_2 =		"100002ec-RR",
+  efdcmplt_3 =		"100002edXRR",
+  efdcmplt_2 =		"100002ed-RR",
+  efdcmpeq_3 =		"100002eeXRR",
+  efdcmpeq_2 =		"100002ee-RR",
+  efdcfs_2 =		"100002efR-R",
+  efdcfui_2 =		"100002f0R-R",
+  efdcfsi_2 =		"100002f1R-R",
+  efdcfuf_2 =		"100002f2R-R",
+  efdcfsf_2 =		"100002f3R-R",
+  efdctui_2 =		"100002f4R-R",
+  efdctsi_2 =		"100002f5R-R",
+  efdctuf_2 =		"100002f6R-R",
+  efdctsf_2 =		"100002f7R-R",
+  efdctuiz_2 =		"100002f8R-R",
+  efdctsiz_2 =		"100002faR-R",
+  efdtstgt_3 =		"100002fcXRR",
+  efdtstgt_2 =		"100002fc-RR",
+  efdtstlt_3 =		"100002fdXRR",
+  efdtstlt_2 =		"100002fd-RR",
+  efdtsteq_3 =		"100002feXRR",
+  efdtsteq_2 =		"100002fe-RR",
+  evlddx_3 =		"10000300RR0R",
+  evldd_2 =		"10000301R8",
+  evldwx_3 =		"10000302RR0R",
+  evldw_2 =		"10000303R8",
+  evldhx_3 =		"10000304RR0R",
+  evldh_2 =		"10000305R8",
+  evlwhex_3 =		"10000310RR0R",
+  evlwhe_2 =		"10000311R4",
+  evlwhoux_3 =		"10000314RR0R",
+  evlwhou_2 =		"10000315R4",
+  evlwhosx_3 =		"10000316RR0R",
+  evlwhos_2 =		"10000317R4",
+  evstddx_3 =		"10000320RR0R",
+  evstdd_2 =		"10000321R8",
+  evstdwx_3 =		"10000322RR0R",
+  evstdw_2 =		"10000323R8",
+  evstdhx_3 =		"10000324RR0R",
+  evstdh_2 =		"10000325R8",
+  evstwhex_3 =		"10000330RR0R",
+  evstwhe_2 =		"10000331R4",
+  evstwhox_3 =		"10000334RR0R",
+  evstwho_2 =		"10000335R4",
+  evstwwex_3 =		"10000338RR0R",
+  evstwwe_2 =		"10000339R4",
+  evstwwox_3 =		"1000033cRR0R",
+  evstwwo_2 =		"1000033dR4",
+  evmhessf_3 =		"10000403RRR",
+  evmhossf_3 =		"10000407RRR",
+  evmheumi_3 =		"10000408RRR",
+  evmhesmi_3 =		"10000409RRR",
+  evmhesmf_3 =		"1000040bRRR",
+  evmhoumi_3 =		"1000040cRRR",
+  evmhosmi_3 =		"1000040dRRR",
+  evmhosmf_3 =		"1000040fRRR",
+  evmhessfa_3 =		"10000423RRR",
+  evmhossfa_3 =		"10000427RRR",
+  evmheumia_3 =		"10000428RRR",
+  evmhesmia_3 =		"10000429RRR",
+  evmhesmfa_3 =		"1000042bRRR",
+  evmhoumia_3 =		"1000042cRRR",
+  evmhosmia_3 =		"1000042dRRR",
+  evmhosmfa_3 =		"1000042fRRR",
+  evmwhssf_3 =		"10000447RRR",
+  evmwlumi_3 =		"10000448RRR",
+  evmwhumi_3 =		"1000044cRRR",
+  evmwhsmi_3 =		"1000044dRRR",
+  evmwhsmf_3 =		"1000044fRRR",
+  evmwssf_3 =		"10000453RRR",
+  evmwumi_3 =		"10000458RRR",
+  evmwsmi_3 =		"10000459RRR",
+  evmwsmf_3 =		"1000045bRRR",
+  evmwhssfa_3 =		"10000467RRR",
+  evmwlumia_3 =		"10000468RRR",
+  evmwhumia_3 =		"1000046cRRR",
+  evmwhsmia_3 =		"1000046dRRR",
+  evmwhsmfa_3 =		"1000046fRRR",
+  evmwssfa_3 =		"10000473RRR",
+  evmwumia_3 =		"10000478RRR",
+  evmwsmia_3 =		"10000479RRR",
+  evmwsmfa_3 =		"1000047bRRR",
+  evmra_2 =		"100004c4RR",
+  evdivws_3 =		"100004c6RRR",
+  evdivwu_3 =		"100004c7RRR",
+  evmwssfaa_3 =		"10000553RRR",
+  evmwumiaa_3 =		"10000558RRR",
+  evmwsmiaa_3 =		"10000559RRR",
+  evmwsmfaa_3 =		"1000055bRRR",
+  evmwssfan_3 =		"100005d3RRR",
+  evmwumian_3 =		"100005d8RRR",
+  evmwsmian_3 =		"100005d9RRR",
+  evmwsmfan_3 =		"100005dbRRR",
+  evmergehilo_3 =	"1000022eRRR",
+  evmergelohi_3 =	"1000022fRRR",
+  evlhhesplatx_3 =	"10000308RR0R",
+  evlhhesplat_2 =	"10000309R2",
+  evlhhousplatx_3 =	"1000030cRR0R",
+  evlhhousplat_2 =	"1000030dR2",
+  evlhhossplatx_3 =	"1000030eRR0R",
+  evlhhossplat_2 =	"1000030fR2",
+  evlwwsplatx_3 =	"10000318RR0R",
+  evlwwsplat_2 =	"10000319R4",
+  evlwhsplatx_3 =	"1000031cRR0R",
+  evlwhsplat_2 =	"1000031dR4",
+  evaddusiaaw_2 =	"100004c0RR",
+  evaddssiaaw_2 =	"100004c1RR",
+  evsubfusiaaw_2 =	"100004c2RR",
+  evsubfssiaaw_2 =	"100004c3RR",
+  evaddumiaaw_2 =	"100004c8RR",
+  evaddsmiaaw_2 =	"100004c9RR",
+  evsubfumiaaw_2 =	"100004caRR",
+  evsubfsmiaaw_2 =	"100004cbRR",
+  evmheusiaaw_3 =	"10000500RRR",
+  evmhessiaaw_3 =	"10000501RRR",
+  evmhessfaaw_3 =	"10000503RRR",
+  evmhousiaaw_3 =	"10000504RRR",
+  evmhossiaaw_3 =	"10000505RRR",
+  evmhossfaaw_3 =	"10000507RRR",
+  evmheumiaaw_3 =	"10000508RRR",
+  evmhesmiaaw_3 =	"10000509RRR",
+  evmhesmfaaw_3 =	"1000050bRRR",
+  evmhoumiaaw_3 =	"1000050cRRR",
+  evmhosmiaaw_3 =	"1000050dRRR",
+  evmhosmfaaw_3 =	"1000050fRRR",
+  evmhegumiaa_3 =	"10000528RRR",
+  evmhegsmiaa_3 =	"10000529RRR",
+  evmhegsmfaa_3 =	"1000052bRRR",
+  evmhogumiaa_3 =	"1000052cRRR",
+  evmhogsmiaa_3 =	"1000052dRRR",
+  evmhogsmfaa_3 =	"1000052fRRR",
+  evmwlusiaaw_3 =	"10000540RRR",
+  evmwlssiaaw_3 =	"10000541RRR",
+  evmwlumiaaw_3 =	"10000548RRR",
+  evmwlsmiaaw_3 =	"10000549RRR",
+  evmheusianw_3 =	"10000580RRR",
+  evmhessianw_3 =	"10000581RRR",
+  evmhessfanw_3 =	"10000583RRR",
+  evmhousianw_3 =	"10000584RRR",
+  evmhossianw_3 =	"10000585RRR",
+  evmhossfanw_3 =	"10000587RRR",
+  evmheumianw_3 =	"10000588RRR",
+  evmhesmianw_3 =	"10000589RRR",
+  evmhesmfanw_3 =	"1000058bRRR",
+  evmhoumianw_3 =	"1000058cRRR",
+  evmhosmianw_3 =	"1000058dRRR",
+  evmhosmfanw_3 =	"1000058fRRR",
+  evmhegumian_3 =	"100005a8RRR",
+  evmhegsmian_3 =	"100005a9RRR",
+  evmhegsmfan_3 =	"100005abRRR",
+  evmhogumian_3 =	"100005acRRR",
+  evmhogsmian_3 =	"100005adRRR",
+  evmhogsmfan_3 =	"100005afRRR",
+  evmwlusianw_3 =	"100005c0RRR",
+  evmwlssianw_3 =	"100005c1RRR",
+  evmwlumianw_3 =	"100005c8RRR",
+  evmwlsmianw_3 =	"100005c9RRR",
+
+  -- NYI: Book E instructions.
+}
+
+-- Add mnemonics for "." variants.
+do
+  local t = {}
+  for k,v in pairs(map_op) do
+    if sub(v, -1) == "." then
+      local v2 = sub(v, 1, 7)..char(byte(v, 8)+1)..sub(v, 9, -2)
+      t[sub(k, 1, -3).."."..sub(k, -2)] = v2
+    end
+  end
+  for k,v in pairs(t) do
+    map_op[k] = v
+  end
+end
+
+-- Add more branch mnemonics.
+for cond,c in pairs(map_cond) do
+  local b1 = "b"..cond
+  local c1 = shl(band(c, 3), 16) + (c < 4 and 0x01000000 or 0)
+  -- bX[l]
+  map_op[b1.."_1"] = tohex(0x40800000 + c1).."K"
+  map_op[b1.."y_1"] = tohex(0x40a00000 + c1).."K"
+  map_op[b1.."l_1"] = tohex(0x40800001 + c1).."K"
+  map_op[b1.."_2"] = tohex(0x40800000 + c1).."-XK"
+  map_op[b1.."y_2"] = tohex(0x40a00000 + c1).."-XK"
+  map_op[b1.."l_2"] = tohex(0x40800001 + c1).."-XK"
+  -- bXlr[l]
+  map_op[b1.."lr_0"] = tohex(0x4c800020 + c1)
+  map_op[b1.."lrl_0"] = tohex(0x4c800021 + c1)
+  map_op[b1.."ctr_0"] = tohex(0x4c800420 + c1)
+  map_op[b1.."ctrl_0"] = tohex(0x4c800421 + c1)
+  -- bXctr[l]
+  map_op[b1.."lr_1"] = tohex(0x4c800020 + c1).."-X"
+  map_op[b1.."lrl_1"] = tohex(0x4c800021 + c1).."-X"
+  map_op[b1.."ctr_1"] = tohex(0x4c800420 + c1).."-X"
+  map_op[b1.."ctrl_1"] = tohex(0x4c800421 + c1).."-X"
+end
+
+------------------------------------------------------------------------------
+
+local function parse_gpr(expr)
+  local tname, ovreg = match(expr, "^([%w_]+):(r[1-3]?[0-9])$")
+  local tp = map_type[tname or expr]
+  if tp then
+    local reg = ovreg or tp.reg
+    if not reg then
+      werror("type `"..(tname or expr).."' needs a register override")
+    end
+    expr = reg
+  end
+  local r = match(expr, "^r([1-3]?[0-9])$")
+  if r then
+    r = tonumber(r)
+    if r <= 31 then return r, tp end
+  end
+  werror("bad register name `"..expr.."'")
+end
+
+local function parse_fpr(expr)
+  local r = match(expr, "^f([1-3]?[0-9])$")
+  if r then
+    r = tonumber(r)
+    if r <= 31 then return r end
+  end
+  werror("bad register name `"..expr.."'")
+end
+
+local function parse_cr(expr)
+  local r = match(expr, "^cr([0-7])$")
+  if r then return tonumber(r) end
+  werror("bad condition register name `"..expr.."'")
+end
+
+local function parse_cond(expr)
+  local r, cond = match(expr, "^4%*cr([0-7])%+(%w%w)$")
+  if r then
+    r = tonumber(r)
+    local c = map_cond[cond]
+    if c and c < 4 then return r*4+c end
+  end
+  werror("bad condition bit name `"..expr.."'")
+end
+
+local function parse_imm(imm, bits, shift, scale, signed)
+  local n = tonumber(imm)
+  if n then
+    local m = sar(n, scale)
+    if shl(m, scale) == n then
+      if signed then
+	local s = sar(m, bits-1)
+	if s == 0 then return shl(m, shift)
+	elseif s == -1 then return shl(m + shl(1, bits), shift) end
+      else
+	if sar(m, bits) == 0 then return shl(m, shift) end
+      end
+    end
+    werror("out of range immediate `"..imm.."'")
+  elseif match(imm, "^r([1-3]?[0-9])$") or
+	 match(imm, "^([%w_]+):(r[1-3]?[0-9])$") then
+    werror("expected immediate operand, got register")
+  else
+    waction("IMM", (signed and 32768 or 0)+scale*1024+bits*32+shift, imm)
+    return 0
+  end
+end
+
+local function parse_shiftmask(imm, isshift)
+  local n = tonumber(imm)
+  if n then
+    if shr(n, 6) == 0 then
+      local lsb = band(imm, 31)
+      local msb = imm - lsb
+      return isshift and (shl(lsb, 11)+shr(msb, 4)) or (shl(lsb, 6)+msb)
+    end
+    werror("out of range immediate `"..imm.."'")
+  elseif match(imm, "^r([1-3]?[0-9])$") or
+	 match(imm, "^([%w_]+):(r[1-3]?[0-9])$") then
+    werror("expected immediate operand, got register")
+  else
+    werror("NYI: parameterized 64 bit shift/mask")
+  end
+end
+
+local function parse_disp(disp)
+  local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
+  if imm then
+    local r = parse_gpr(reg)
+    if r == 0 then werror("cannot use r0 in displacement") end
+    return shl(r, 16) + parse_imm(imm, 16, 0, 0, true)
+  end
+  local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
+  if reg and tailr ~= "" then
+    local r, tp = parse_gpr(reg)
+    if r == 0 then werror("cannot use r0 in displacement") end
+    if tp then
+      waction("IMM", 32768+16*32, format(tp.ctypefmt, tailr))
+      return shl(r, 16)
+    end
+  end
+  werror("bad displacement `"..disp.."'")
+end
+
+local function parse_u5disp(disp, scale)
+  local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
+  if imm then
+    local r = parse_gpr(reg)
+    if r == 0 then werror("cannot use r0 in displacement") end
+    return shl(r, 16) + parse_imm(imm, 5, 11, scale, false)
+  end
+  local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
+  if reg and tailr ~= "" then
+    local r, tp = parse_gpr(reg)
+    if r == 0 then werror("cannot use r0 in displacement") end
+    if tp then
+      waction("IMM", scale*1024+5*32+11, format(tp.ctypefmt, tailr))
+      return shl(r, 16)
+    end
+  end
+  werror("bad displacement `"..disp.."'")
+end
+
+local function parse_label(label, def)
+  local prefix = sub(label, 1, 2)
+  -- =>label (pc label reference)
+  if prefix == "=>" then
+    return "PC", 0, sub(label, 3)
+  end
+  -- ->name (global label reference)
+  if prefix == "->" then
+    return "LG", map_global[sub(label, 3)]
+  end
+  if def then
+    -- [1-9] (local label definition)
+    if match(label, "^[1-9]$") then
+      return "LG", 10+tonumber(label)
+    end
+  else
+    -- [<>][1-9] (local label reference)
+    local dir, lnum = match(label, "^([<>])([1-9])$")
+    if dir then -- Fwd: 1-9, Bkwd: 11-19.
+      return "LG", lnum + (dir == ">" and 0 or 10)
+    end
+    -- extern label (extern label reference)
+    local extname = match(label, "^extern%s+(%S+)$")
+    if extname then
+      return "EXT", map_extern[extname]
+    end
+  end
+  werror("bad label `"..label.."'")
+end
+
+------------------------------------------------------------------------------
+
+-- Handle opcodes defined with template strings.
+map_op[".template__"] = function(params, template, nparams)
+  if not params then return sub(template, 9) end
+  local op = tonumber(sub(template, 1, 8), 16)
+  local n, rs = 1, 26
+
+  -- Limit number of section buffer positions used by a single dasm_put().
+  -- A single opcode needs a maximum of 3 positions (rlwinm).
+  if secpos+3 > maxsecpos then wflush() end
+  local pos = wpos()
+
+  -- Process each character.
+  for p in gmatch(sub(template, 9), ".") do
+    if p == "R" then
+      rs = rs - 5; op = op + shl(parse_gpr(params[n]), rs); n = n + 1
+    elseif p == "F" then
+      rs = rs - 5; op = op + shl(parse_fpr(params[n]), rs); n = n + 1
+    elseif p == "A" then
+      rs = rs - 5; op = op + parse_imm(params[n], 5, rs, 0, false); n = n + 1
+    elseif p == "S" then
+      rs = rs - 5; op = op + parse_imm(params[n], 5, rs, 0, true); n = n + 1
+    elseif p == "I" then
+      op = op + parse_imm(params[n], 16, 0, 0, true); n = n + 1
+    elseif p == "U" then
+      op = op + parse_imm(params[n], 16, 0, 0, false); n = n + 1
+    elseif p == "D" then
+      op = op + parse_disp(params[n]); n = n + 1
+    elseif p == "2" then
+      op = op + parse_u5disp(params[n], 1); n = n + 1
+    elseif p == "4" then
+      op = op + parse_u5disp(params[n], 2); n = n + 1
+    elseif p == "8" then
+      op = op + parse_u5disp(params[n], 3); n = n + 1
+    elseif p == "C" then
+      rs = rs - 5; op = op + shl(parse_cond(params[n]), rs); n = n + 1
+    elseif p == "X" then
+      rs = rs - 5; op = op + shl(parse_cr(params[n]), rs+2); n = n + 1
+    elseif p == "W" then
+      op = op + parse_cr(params[n]); n = n + 1
+    elseif p == "G" then
+      op = op + parse_imm(params[n], 8, 12, 0, false); n = n + 1
+    elseif p == "H" then
+      op = op + parse_shiftmask(params[n], true); n = n + 1
+    elseif p == "M" then
+      op = op + parse_shiftmask(params[n], false); n = n + 1
+    elseif p == "J" or p == "K" then
+      local mode, n, s = parse_label(params[n], false)
+      if p == "K" then n = n + 2048 end
+      waction("REL_"..mode, n, s, 1)
+      n = n + 1
+    elseif p == "0" then
+      if band(shr(op, rs), 31) == 0 then werror("cannot use r0") end
+    elseif p == "=" or p == "%" then
+      local t = band(shr(op, p == "%" and rs+5 or rs), 31)
+      rs = rs - 5
+      op = op + shl(t, rs)
+    elseif p == "~" then
+      local mm = shl(31, rs)
+      local lo = band(op, mm)
+      local hi = band(op, shl(mm, 5))
+      op = op - lo - hi + shl(lo, 5) + shr(hi, 5)
+    elseif p == "-" then
+      rs = rs - 5
+    elseif p == "." then
+      -- Ignored.
+    else
+      assert(false)
+    end
+  end
+  wputpos(pos, op)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+  if not params then return "prefix" end
+  local prefix = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_1"] = function(params)
+  if not params then return "[1-9] | ->global | =>pcexpr" end
+  if secpos+1 > maxsecpos then wflush() end
+  local mode, n, s = parse_label(params[1], true)
+  if mode == "EXT" then werror("bad label definition") end
+  waction("LABEL_"..mode, n, s, 1)
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+map_op[".long_*"] = function(params)
+  if not params then return "imm..." end
+  for _,p in ipairs(params) do
+    local n = tonumber(p)
+    if not n then werror("bad immediate `"..p.."'") end
+    if n < 0 then n = n + 2^32 end
+    wputw(n)
+    if secpos+2 > maxsecpos then wflush() end
+  end
+end
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+  if not params then return "numpow2" end
+  if secpos+1 > maxsecpos then wflush() end
+  local align = tonumber(params[1])
+  if align then
+    local x = align
+    -- Must be a power of 2 in the range (2 ... 256).
+    for i=1,8 do
+      x = x / 2
+      if x == 1 then
+	waction("ALIGN", align-1, nil, 1) -- Action byte is 2**n-1.
+	return
+      end
+    end
+  end
+  werror("bad alignment")
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+  if not params then
+    return nparams == 2 and "name, ctype" or "name, ctype, reg"
+  end
+  local name, ctype, reg = params[1], params[2], params[3]
+  if not match(name, "^[%a_][%w_]*$") then
+    werror("bad type name `"..name.."'")
+  end
+  local tp = map_type[name]
+  if tp then
+    werror("duplicate type `"..name.."'")
+  end
+  -- Add #type to defines. A bit unclean to put it in map_archdef.
+  map_archdef["#"..name] = "sizeof("..ctype..")"
+  -- Add new type and emit shortcut define.
+  local num = ctypenum + 1
+  map_type[name] = {
+    ctype = ctype,
+    ctypefmt = format("Dt%X(%%s)", num),
+    reg = reg,
+  }
+  wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+  ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+  local t = {}
+  for name in pairs(map_type) do t[#t+1] = name end
+  sort(t)
+  out:write("Type definitions:\n")
+  for _,name in ipairs(t) do
+    local tp = map_type[name]
+    local reg = tp.reg or ""
+    out:write(format("  %-20s %-20s %s\n", name, tp.ctype, reg))
+  end
+  out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+  waction("SECTION", num)
+  wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+  out:write(format("DynASM %s version %s, released %s\n\n",
+    _info.arch, _info.version, _info.release))
+  dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+  dumptypes(out, lvl)
+  dumpglobals(out, lvl)
+  dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+  wline, werror, wfatal, wwarn = wl, we, wf, ww
+  return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+  g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+  setmetatable(map_op, { __index = map_coreop })
+  setmetatable(map_def, { __index = map_archdef })
+  return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/lib/luajit/dynasm/dasm_proto.h b/lib/luajit/dynasm/dasm_proto.h
new file mode 100644
index 00000000..e77bb844
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_proto.h
@@ -0,0 +1,83 @@
+/*
+** DynASM encoding engine prototypes.
+** Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+** Released under the MIT license. See dynasm.lua for full copyright notice.
+*/
+
+#ifndef _DASM_PROTO_H
+#define _DASM_PROTO_H
+
+#include <stddef.h>
+#include <stdarg.h>
+
+#define DASM_IDENT	"DynASM 1.3.0"
+#define DASM_VERSION	10300	/* 1.3.0 */
+
+#ifndef Dst_DECL
+#define Dst_DECL	dasm_State **Dst
+#endif
+
+#ifndef Dst_REF
+#define Dst_REF		(*Dst)
+#endif
+
+#ifndef DASM_FDEF
+#define DASM_FDEF	extern
+#endif
+
+#ifndef DASM_M_GROW
+#define DASM_M_GROW(ctx, t, p, sz, need) \
+  do { \
+    size_t _sz = (sz), _need = (need); \
+    if (_sz < _need) { \
+      if (_sz < 16) _sz = 16; \
+      while (_sz < _need) _sz += _sz; \
+      (p) = (t *)realloc((p), _sz); \
+      if ((p) == NULL) exit(1); \
+      (sz) = _sz; \
+    } \
+  } while(0)
+#endif
+
+#ifndef DASM_M_FREE
+#define DASM_M_FREE(ctx, p, sz)	free(p)
+#endif
+
+/* Internal DynASM encoder state. */
+typedef struct dasm_State dasm_State;
+
+
+/* Initialize and free DynASM state. */
+DASM_FDEF void dasm_init(Dst_DECL, int maxsection);
+DASM_FDEF void dasm_free(Dst_DECL);
+
+/* Setup global array. Must be called before dasm_setup(). */
+DASM_FDEF void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl);
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+DASM_FDEF void dasm_growpc(Dst_DECL, unsigned int maxpc);
+
+/* Setup encoder. */
+DASM_FDEF void dasm_setup(Dst_DECL, const void *actionlist);
+
+/* Feed encoder with actions. Calls are generated by pre-processor. */
+DASM_FDEF void dasm_put(Dst_DECL, int start, ...);
+
+/* Link sections and return the resulting size. */
+DASM_FDEF int dasm_link(Dst_DECL, size_t *szp);
+
+/* Encode sections into buffer. */
+DASM_FDEF int dasm_encode(Dst_DECL, void *buffer);
+
+/* Get PC label offset. */
+DASM_FDEF int dasm_getpclabel(Dst_DECL, unsigned int pc);
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+DASM_FDEF int dasm_checkstep(Dst_DECL, int secmatch);
+#else
+#define dasm_checkstep(a, b)	0
+#endif
+
+
+#endif /* _DASM_PROTO_H */
diff --git a/lib/luajit/dynasm/dasm_x64.lua b/lib/luajit/dynasm/dasm_x64.lua
new file mode 100644
index 00000000..91d676d1
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_x64.lua
@@ -0,0 +1,12 @@
+------------------------------------------------------------------------------
+-- DynASM x64 module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+-- This module just sets 64 bit mode for the combined x86/x64 module.
+-- All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+x64 = true -- Using a global is an ugly, but effective solution.
+return require("dasm_x86")
diff --git a/lib/luajit/dynasm/dasm_x86.h b/lib/luajit/dynasm/dasm_x86.h
new file mode 100644
index 00000000..97cbbea8
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_x86.h
@@ -0,0 +1,471 @@
+/*
+** DynASM x86 encoding engine.
+** Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+** Released under the MIT license. See dynasm.lua for full copyright notice.
+*/
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define DASM_ARCH		"x86"
+
+#ifndef DASM_EXTERN
+#define DASM_EXTERN(a,b,c,d)	0
+#endif
+
+/* Action definitions. DASM_STOP must be 255. */
+enum {
+  DASM_DISP = 233,
+  DASM_IMM_S, DASM_IMM_B, DASM_IMM_W, DASM_IMM_D, DASM_IMM_WB, DASM_IMM_DB,
+  DASM_VREG, DASM_SPACE, DASM_SETLABEL, DASM_REL_A, DASM_REL_LG, DASM_REL_PC,
+  DASM_IMM_LG, DASM_IMM_PC, DASM_LABEL_LG, DASM_LABEL_PC, DASM_ALIGN,
+  DASM_EXTERN, DASM_ESC, DASM_MARK, DASM_SECTION, DASM_STOP
+};
+
+/* Maximum number of section buffer positions for a single dasm_put() call. */
+#define DASM_MAXSECPOS		25
+
+/* DynASM encoder status codes. Action list offset or number are or'ed in. */
+#define DASM_S_OK		0x00000000
+#define DASM_S_NOMEM		0x01000000
+#define DASM_S_PHASE		0x02000000
+#define DASM_S_MATCH_SEC	0x03000000
+#define DASM_S_RANGE_I		0x11000000
+#define DASM_S_RANGE_SEC	0x12000000
+#define DASM_S_RANGE_LG		0x13000000
+#define DASM_S_RANGE_PC		0x14000000
+#define DASM_S_RANGE_VREG	0x15000000
+#define DASM_S_UNDEF_L		0x21000000
+#define DASM_S_UNDEF_PC		0x22000000
+
+/* Macros to convert positions (8 bit section + 24 bit index). */
+#define DASM_POS2IDX(pos)	((pos)&0x00ffffff)
+#define DASM_POS2BIAS(pos)	((pos)&0xff000000)
+#define DASM_SEC2POS(sec)	((sec)<<24)
+#define DASM_POS2SEC(pos)	((pos)>>24)
+#define DASM_POS2PTR(D, pos)	(D->sections[DASM_POS2SEC(pos)].rbuf + (pos))
+
+/* Action list type. */
+typedef const unsigned char *dasm_ActList;
+
+/* Per-section structure. */
+typedef struct dasm_Section {
+  int *rbuf;		/* Biased buffer pointer (negative section bias). */
+  int *buf;		/* True buffer pointer. */
+  size_t bsize;		/* Buffer size in bytes. */
+  int pos;		/* Biased buffer position. */
+  int epos;		/* End of biased buffer position - max single put. */
+  int ofs;		/* Byte offset into section. */
+} dasm_Section;
+
+/* Core structure holding the DynASM encoding state. */
+struct dasm_State {
+  size_t psize;			/* Allocated size of this structure. */
+  dasm_ActList actionlist;	/* Current actionlist pointer. */
+  int *lglabels;		/* Local/global chain/pos ptrs. */
+  size_t lgsize;
+  int *pclabels;		/* PC label chains/pos ptrs. */
+  size_t pcsize;
+  void **globals;		/* Array of globals (bias -10). */
+  dasm_Section *section;	/* Pointer to active section. */
+  size_t codesize;		/* Total size of all code sections. */
+  int maxsection;		/* 0 <= sectionidx < maxsection. */
+  int status;			/* Status code. */
+  dasm_Section sections[1];	/* All sections. Alloc-extended. */
+};
+
+/* The size of the core structure depends on the max. number of sections. */
+#define DASM_PSZ(ms)	(sizeof(dasm_State)+(ms-1)*sizeof(dasm_Section))
+
+
+/* Initialize DynASM state. */
+void dasm_init(Dst_DECL, int maxsection)
+{
+  dasm_State *D;
+  size_t psz = 0;
+  int i;
+  Dst_REF = NULL;
+  DASM_M_GROW(Dst, struct dasm_State, Dst_REF, psz, DASM_PSZ(maxsection));
+  D = Dst_REF;
+  D->psize = psz;
+  D->lglabels = NULL;
+  D->lgsize = 0;
+  D->pclabels = NULL;
+  D->pcsize = 0;
+  D->globals = NULL;
+  D->maxsection = maxsection;
+  for (i = 0; i < maxsection; i++) {
+    D->sections[i].buf = NULL;  /* Need this for pass3. */
+    D->sections[i].rbuf = D->sections[i].buf - DASM_SEC2POS(i);
+    D->sections[i].bsize = 0;
+    D->sections[i].epos = 0;  /* Wrong, but is recalculated after resize. */
+  }
+}
+
+/* Free DynASM state. */
+void dasm_free(Dst_DECL)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  for (i = 0; i < D->maxsection; i++)
+    if (D->sections[i].buf)
+      DASM_M_FREE(Dst, D->sections[i].buf, D->sections[i].bsize);
+  if (D->pclabels) DASM_M_FREE(Dst, D->pclabels, D->pcsize);
+  if (D->lglabels) DASM_M_FREE(Dst, D->lglabels, D->lgsize);
+  DASM_M_FREE(Dst, D, D->psize);
+}
+
+/* Setup global label array. Must be called before dasm_setup(). */
+void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl)
+{
+  dasm_State *D = Dst_REF;
+  D->globals = gl - 10;  /* Negative bias to compensate for locals. */
+  DASM_M_GROW(Dst, int, D->lglabels, D->lgsize, (10+maxgl)*sizeof(int));
+}
+
+/* Grow PC label array. Can be called after dasm_setup(), too. */
+void dasm_growpc(Dst_DECL, unsigned int maxpc)
+{
+  dasm_State *D = Dst_REF;
+  size_t osz = D->pcsize;
+  DASM_M_GROW(Dst, int, D->pclabels, D->pcsize, maxpc*sizeof(int));
+  memset((void *)(((unsigned char *)D->pclabels)+osz), 0, D->pcsize-osz);
+}
+
+/* Setup encoder. */
+void dasm_setup(Dst_DECL, const void *actionlist)
+{
+  dasm_State *D = Dst_REF;
+  int i;
+  D->actionlist = (dasm_ActList)actionlist;
+  D->status = DASM_S_OK;
+  D->section = &D->sections[0];
+  memset((void *)D->lglabels, 0, D->lgsize);
+  if (D->pclabels) memset((void *)D->pclabels, 0, D->pcsize);
+  for (i = 0; i < D->maxsection; i++) {
+    D->sections[i].pos = DASM_SEC2POS(i);
+    D->sections[i].ofs = 0;
+  }
+}
+
+
+#ifdef DASM_CHECKS
+#define CK(x, st) \
+  do { if (!(x)) { \
+    D->status = DASM_S_##st|(int)(p-D->actionlist-1); return; } } while (0)
+#define CKPL(kind, st) \
+  do { if ((size_t)((char *)pl-(char *)D->kind##labels) >= D->kind##size) { \
+    D->status=DASM_S_RANGE_##st|(int)(p-D->actionlist-1); return; } } while (0)
+#else
+#define CK(x, st)	((void)0)
+#define CKPL(kind, st)	((void)0)
+#endif
+
+/* Pass 1: Store actions and args, link branches/labels, estimate offsets. */
+void dasm_put(Dst_DECL, int start, ...)
+{
+  va_list ap;
+  dasm_State *D = Dst_REF;
+  dasm_ActList p = D->actionlist + start;
+  dasm_Section *sec = D->section;
+  int pos = sec->pos, ofs = sec->ofs, mrm = 4;
+  int *b;
+
+  if (pos >= sec->epos) {
+    DASM_M_GROW(Dst, int, sec->buf, sec->bsize,
+      sec->bsize + 2*DASM_MAXSECPOS*sizeof(int));
+    sec->rbuf = sec->buf - DASM_POS2BIAS(pos);
+    sec->epos = (int)sec->bsize/sizeof(int) - DASM_MAXSECPOS+DASM_POS2BIAS(pos);
+  }
+
+  b = sec->rbuf;
+  b[pos++] = start;
+
+  va_start(ap, start);
+  while (1) {
+    int action = *p++;
+    if (action < DASM_DISP) {
+      ofs++;
+    } else if (action <= DASM_REL_A) {
+      int n = va_arg(ap, int);
+      b[pos++] = n;
+      switch (action) {
+      case DASM_DISP:
+	if (n == 0) { if ((mrm&7) == 4) mrm = p[-2]; if ((mrm&7) != 5) break; }
+      case DASM_IMM_DB: if (((n+128)&-256) == 0) goto ob;
+      case DASM_REL_A: /* Assumes ptrdiff_t is int. !x64 */
+      case DASM_IMM_D: ofs += 4; break;
+      case DASM_IMM_S: CK(((n+128)&-256) == 0, RANGE_I); goto ob;
+      case DASM_IMM_B: CK((n&-256) == 0, RANGE_I); ob: ofs++; break;
+      case DASM_IMM_WB: if (((n+128)&-256) == 0) goto ob;
+      case DASM_IMM_W: CK((n&-65536) == 0, RANGE_I); ofs += 2; break;
+      case DASM_SPACE: p++; ofs += n; break;
+      case DASM_SETLABEL: b[pos-2] = -0x40000000; break;  /* Neg. label ofs. */
+      case DASM_VREG: CK((n&-8) == 0 && (n != 4 || (*p&1) == 0), RANGE_VREG);
+	if (*p++ == 1 && *p == DASM_DISP) mrm = n; continue;
+      }
+      mrm = 4;
+    } else {
+      int *pl, n;
+      switch (action) {
+      case DASM_REL_LG:
+      case DASM_IMM_LG:
+	n = *p++; pl = D->lglabels + n;
+	/* Bkwd rel or global. */
+	if (n <= 246) { CK(n>=10||*pl<0, RANGE_LG); CKPL(lg, LG); goto putrel; }
+	pl -= 246; n = *pl;
+	if (n < 0) n = 0;  /* Start new chain for fwd rel if label exists. */
+	goto linkrel;
+      case DASM_REL_PC:
+      case DASM_IMM_PC: pl = D->pclabels + va_arg(ap, int); CKPL(pc, PC);
+      putrel:
+	n = *pl;
+	if (n < 0) {  /* Label exists. Get label pos and store it. */
+	  b[pos] = -n;
+	} else {
+      linkrel:
+	  b[pos] = n;  /* Else link to rel chain, anchored at label. */
+	  *pl = pos;
+	}
+	pos++;
+	ofs += 4;  /* Maximum offset needed. */
+	if (action == DASM_REL_LG || action == DASM_REL_PC)
+	  b[pos++] = ofs;  /* Store pass1 offset estimate. */
+	break;
+      case DASM_LABEL_LG: pl = D->lglabels + *p++; CKPL(lg, LG); goto putlabel;
+      case DASM_LABEL_PC: pl = D->pclabels + va_arg(ap, int); CKPL(pc, PC);
+      putlabel:
+	n = *pl;  /* n > 0: Collapse rel chain and replace with label pos. */
+	while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = pos; }
+	*pl = -pos;  /* Label exists now. */
+	b[pos++] = ofs;  /* Store pass1 offset estimate. */
+	break;
+      case DASM_ALIGN:
+	ofs += *p++;  /* Maximum alignment needed (arg is 2**n-1). */
+	b[pos++] = ofs;  /* Store pass1 offset estimate. */
+	break;
+      case DASM_EXTERN: p += 2; ofs += 4; break;
+      case DASM_ESC: p++; ofs++; break;
+      case DASM_MARK: mrm = p[-2]; break;
+      case DASM_SECTION:
+	n = *p; CK(n < D->maxsection, RANGE_SEC); D->section = &D->sections[n];
+      case DASM_STOP: goto stop;
+      }
+    }
+  }
+stop:
+  va_end(ap);
+  sec->pos = pos;
+  sec->ofs = ofs;
+}
+#undef CK
+
+/* Pass 2: Link sections, shrink branches/aligns, fix label offsets. */
+int dasm_link(Dst_DECL, size_t *szp)
+{
+  dasm_State *D = Dst_REF;
+  int secnum;
+  int ofs = 0;
+
+#ifdef DASM_CHECKS
+  *szp = 0;
+  if (D->status != DASM_S_OK) return D->status;
+  {
+    int pc;
+    for (pc = 0; pc*sizeof(int) < D->pcsize; pc++)
+      if (D->pclabels[pc] > 0) return DASM_S_UNDEF_PC|pc;
+  }
+#endif
+
+  { /* Handle globals not defined in this translation unit. */
+    int idx;
+    for (idx = 10; idx*sizeof(int) < D->lgsize; idx++) {
+      int n = D->lglabels[idx];
+      /* Undefined label: Collapse rel chain and replace with marker (< 0). */
+      while (n > 0) { int *pb = DASM_POS2PTR(D, n); n = *pb; *pb = -idx; }
+    }
+  }
+
+  /* Combine all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->rbuf;
+    int pos = DASM_SEC2POS(secnum);
+    int lastpos = sec->pos;
+
+    while (pos != lastpos) {
+      dasm_ActList p = D->actionlist + b[pos++];
+      while (1) {
+	int op, action = *p++;
+	switch (action) {
+	case DASM_REL_LG: p++; op = p[-3]; goto rel_pc;
+	case DASM_REL_PC: op = p[-2]; rel_pc: {
+	  int shrink = op == 0xe9 ? 3 : ((op&0xf0) == 0x80 ? 4 : 0);
+	  if (shrink) {  /* Shrinkable branch opcode? */
+	    int lofs, lpos = b[pos];
+	    if (lpos < 0) goto noshrink;  /* Ext global? */
+	    lofs = *DASM_POS2PTR(D, lpos);
+	    if (lpos > pos) {  /* Fwd label: add cumulative section offsets. */
+	      int i;
+	      for (i = secnum; i < DASM_POS2SEC(lpos); i++)
+		lofs += D->sections[i].ofs;
+	    } else {
+	      lofs -= ofs;  /* Bkwd label: unfix offset. */
+	    }
+	    lofs -= b[pos+1];  /* Short branch ok? */
+	    if (lofs >= -128-shrink && lofs <= 127) ofs -= shrink;  /* Yes. */
+	    else { noshrink: shrink = 0; }  /* No, cannot shrink op. */
+	  }
+	  b[pos+1] = shrink;
+	  pos += 2;
+	  break;
+	}
+	case DASM_SPACE: case DASM_IMM_LG: case DASM_VREG: p++;
+	case DASM_DISP: case DASM_IMM_S: case DASM_IMM_B: case DASM_IMM_W:
+	case DASM_IMM_D: case DASM_IMM_WB: case DASM_IMM_DB:
+	case DASM_SETLABEL: case DASM_REL_A: case DASM_IMM_PC: pos++; break;
+	case DASM_LABEL_LG: p++;
+	case DASM_LABEL_PC: b[pos++] += ofs; break; /* Fix label offset. */
+	case DASM_ALIGN: ofs -= (b[pos++]+ofs)&*p++; break; /* Adjust ofs. */
+	case DASM_EXTERN: p += 2; break;
+	case DASM_ESC: p++; break;
+	case DASM_MARK: break;
+	case DASM_SECTION: case DASM_STOP: goto stop;
+	}
+      }
+      stop: (void)0;
+    }
+    ofs += sec->ofs;  /* Next section starts right after current section. */
+  }
+
+  D->codesize = ofs;  /* Total size of all code sections */
+  *szp = ofs;
+  return DASM_S_OK;
+}
+
+#define dasmb(x)	*cp++ = (unsigned char)(x)
+#ifndef DASM_ALIGNED_WRITES
+#define dasmw(x) \
+  do { *((unsigned short *)cp) = (unsigned short)(x); cp+=2; } while (0)
+#define dasmd(x) \
+  do { *((unsigned int *)cp) = (unsigned int)(x); cp+=4; } while (0)
+#else
+#define dasmw(x)	do { dasmb(x); dasmb((x)>>8); } while (0)
+#define dasmd(x)	do { dasmw(x); dasmw((x)>>16); } while (0)
+#endif
+
+/* Pass 3: Encode sections. */
+int dasm_encode(Dst_DECL, void *buffer)
+{
+  dasm_State *D = Dst_REF;
+  unsigned char *base = (unsigned char *)buffer;
+  unsigned char *cp = base;
+  int secnum;
+
+  /* Encode all code sections. No support for data sections (yet). */
+  for (secnum = 0; secnum < D->maxsection; secnum++) {
+    dasm_Section *sec = D->sections + secnum;
+    int *b = sec->buf;
+    int *endb = sec->rbuf + sec->pos;
+
+    while (b != endb) {
+      dasm_ActList p = D->actionlist + *b++;
+      unsigned char *mark = NULL;
+      while (1) {
+	int action = *p++;
+	int n = (action >= DASM_DISP && action <= DASM_ALIGN) ? *b++ : 0;
+	switch (action) {
+	case DASM_DISP: if (!mark) mark = cp; {
+	  unsigned char *mm = mark;
+	  if (*p != DASM_IMM_DB && *p != DASM_IMM_WB) mark = NULL;
+	  if (n == 0) { int mrm = mm[-1]&7; if (mrm == 4) mrm = mm[0]&7;
+	    if (mrm != 5) { mm[-1] -= 0x80; break; } }
+	  if (((n+128) & -256) != 0) goto wd; else mm[-1] -= 0x40;
+	}
+	case DASM_IMM_S: case DASM_IMM_B: wb: dasmb(n); break;
+	case DASM_IMM_DB: if (((n+128)&-256) == 0) {
+	    db: if (!mark) mark = cp; mark[-2] += 2; mark = NULL; goto wb;
+	  } else mark = NULL;
+	case DASM_IMM_D: wd: dasmd(n); break;
+	case DASM_IMM_WB: if (((n+128)&-256) == 0) goto db; else mark = NULL;
+	case DASM_IMM_W: dasmw(n); break;
+	case DASM_VREG: { int t = *p++; if (t >= 2) n<<=3; cp[-1] |= n; break; }
+	case DASM_REL_LG: p++; if (n >= 0) goto rel_pc;
+	  b++; n = (int)(ptrdiff_t)D->globals[-n];
+	case DASM_REL_A: rel_a: n -= (int)(ptrdiff_t)(cp+4); goto wd; /* !x64 */
+	case DASM_REL_PC: rel_pc: {
+	  int shrink = *b++;
+	  int *pb = DASM_POS2PTR(D, n); if (*pb < 0) { n = pb[1]; goto rel_a; }
+	  n = *pb - ((int)(cp-base) + 4-shrink);
+	  if (shrink == 0) goto wd;
+	  if (shrink == 4) { cp--; cp[-1] = *cp-0x10; } else cp[-1] = 0xeb;
+	  goto wb;
+	}
+	case DASM_IMM_LG:
+	  p++; if (n < 0) { n = (int)(ptrdiff_t)D->globals[-n]; goto wd; }
+	case DASM_IMM_PC: {
+	  int *pb = DASM_POS2PTR(D, n);
+	  n = *pb < 0 ? pb[1] : (*pb + (int)(ptrdiff_t)base);
+	  goto wd;
+	}
+	case DASM_LABEL_LG: {
+	  int idx = *p++;
+	  if (idx >= 10)
+	    D->globals[idx] = (void *)(base + (*p == DASM_SETLABEL ? *b : n));
+	  break;
+	}
+	case DASM_LABEL_PC: case DASM_SETLABEL: break;
+	case DASM_SPACE: { int fill = *p++; while (n--) *cp++ = fill; break; }
+	case DASM_ALIGN:
+	  n = *p++;
+	  while (((cp-base) & n)) *cp++ = 0x90; /* nop */
+	  break;
+	case DASM_EXTERN: n = DASM_EXTERN(Dst, cp, p[1], *p); p += 2; goto wd;
+	case DASM_MARK: mark = cp; break;
+	case DASM_ESC: action = *p++;
+	default: *cp++ = action; break;
+	case DASM_SECTION: case DASM_STOP: goto stop;
+	}
+      }
+      stop: (void)0;
+    }
+  }
+
+  if (base + D->codesize != cp)  /* Check for phase errors. */
+    return DASM_S_PHASE;
+  return DASM_S_OK;
+}
+
+/* Get PC label offset. */
+int dasm_getpclabel(Dst_DECL, unsigned int pc)
+{
+  dasm_State *D = Dst_REF;
+  if (pc*sizeof(int) < D->pcsize) {
+    int pos = D->pclabels[pc];
+    if (pos < 0) return *DASM_POS2PTR(D, -pos);
+    if (pos > 0) return -1;  /* Undefined. */
+  }
+  return -2;  /* Unused or out of range. */
+}
+
+#ifdef DASM_CHECKS
+/* Optional sanity checker to call between isolated encoding steps. */
+int dasm_checkstep(Dst_DECL, int secmatch)
+{
+  dasm_State *D = Dst_REF;
+  if (D->status == DASM_S_OK) {
+    int i;
+    for (i = 1; i <= 9; i++) {
+      if (D->lglabels[i] > 0) { D->status = DASM_S_UNDEF_L|i; break; }
+      D->lglabels[i] = 0;
+    }
+  }
+  if (D->status == DASM_S_OK && secmatch >= 0 &&
+      D->section != &D->sections[secmatch])
+    D->status = DASM_S_MATCH_SEC|(int)(D->section-D->sections);
+  return D->status;
+}
+#endif
+
diff --git a/lib/luajit/dynasm/dasm_x86.lua b/lib/luajit/dynasm/dasm_x86.lua
new file mode 100644
index 00000000..f3859e3e
--- /dev/null
+++ b/lib/luajit/dynasm/dasm_x86.lua
@@ -0,0 +1,1937 @@
+------------------------------------------------------------------------------
+-- DynASM x86/x64 module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- See dynasm.lua for full copyright notice.
+------------------------------------------------------------------------------
+
+local x64 = x64
+
+-- Module information:
+local _info = {
+  arch =	x64 and "x64" or "x86",
+  description =	"DynASM x86/x64 module",
+  version =	"1.3.0",
+  vernum =	 10300,
+  release =	"2011-05-05",
+  author =	"Mike Pall",
+  license =	"MIT",
+}
+
+-- Exported glue functions for the arch-specific module.
+local _M = { _info = _info }
+
+-- Cache library functions.
+local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
+local assert, unpack, setmetatable = assert, unpack or table.unpack, setmetatable
+local _s = string
+local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
+local find, match, gmatch, gsub = _s.find, _s.match, _s.gmatch, _s.gsub
+local concat, sort = table.concat, table.sort
+local bit = bit or require("bit")
+local band, shl, shr = bit.band, bit.lshift, bit.rshift
+
+-- Inherited tables and callbacks.
+local g_opt, g_arch
+local wline, werror, wfatal, wwarn
+
+-- Action name list.
+-- CHECK: Keep this in sync with the C code!
+local action_names = {
+  -- int arg, 1 buffer pos:
+  "DISP",  "IMM_S", "IMM_B", "IMM_W", "IMM_D",  "IMM_WB", "IMM_DB",
+  -- action arg (1 byte), int arg, 1 buffer pos (reg/num):
+  "VREG", "SPACE", -- !x64: VREG support NYI.
+  -- ptrdiff_t arg, 1 buffer pos (address): !x64
+  "SETLABEL", "REL_A",
+  -- action arg (1 byte) or int arg, 2 buffer pos (link, offset):
+  "REL_LG", "REL_PC",
+  -- action arg (1 byte) or int arg, 1 buffer pos (link):
+  "IMM_LG", "IMM_PC",
+  -- action arg (1 byte) or int arg, 1 buffer pos (offset):
+  "LABEL_LG", "LABEL_PC",
+  -- action arg (1 byte), 1 buffer pos (offset):
+  "ALIGN",
+  -- action args (2 bytes), no buffer pos.
+  "EXTERN",
+  -- action arg (1 byte), no buffer pos.
+  "ESC",
+  -- no action arg, no buffer pos.
+  "MARK",
+  -- action arg (1 byte), no buffer pos, terminal action:
+  "SECTION",
+  -- no args, no buffer pos, terminal action:
+  "STOP"
+}
+
+-- Maximum number of section buffer positions for dasm_put().
+-- CHECK: Keep this in sync with the C code!
+local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
+
+-- Action name -> action number (dynamically generated below).
+local map_action = {}
+-- First action number. Everything below does not need to be escaped.
+local actfirst = 256-#action_names
+
+-- Action list buffer and string (only used to remove dupes).
+local actlist = {}
+local actstr = ""
+
+-- Argument list for next dasm_put(). Start with offset 0 into action list.
+local actargs = { 0 }
+
+-- Current number of section buffer positions for dasm_put().
+local secpos = 1
+
+------------------------------------------------------------------------------
+
+-- Compute action numbers for action names.
+for n,name in ipairs(action_names) do
+  local num = actfirst + n - 1
+  map_action[name] = num
+end
+
+-- Dump action names and numbers.
+local function dumpactions(out)
+  out:write("DynASM encoding engine action codes:\n")
+  for n,name in ipairs(action_names) do
+    local num = map_action[name]
+    out:write(format("  %-10s %02X  %d\n", name, num, num))
+  end
+  out:write("\n")
+end
+
+-- Write action list buffer as a huge static C array.
+local function writeactions(out, name)
+  local nn = #actlist
+  local last = actlist[nn] or 255
+  actlist[nn] = nil -- Remove last byte.
+  if nn == 0 then nn = 1 end
+  out:write("static const unsigned char ", name, "[", nn, "] = {\n")
+  local s = "  "
+  for n,b in ipairs(actlist) do
+    s = s..b..","
+    if #s >= 75 then
+      assert(out:write(s, "\n"))
+      s = "  "
+    end
+  end
+  out:write(s, last, "\n};\n\n") -- Add last byte back.
+end
+
+------------------------------------------------------------------------------
+
+-- Add byte to action list.
+local function wputxb(n)
+  assert(n >= 0 and n <= 255 and n % 1 == 0, "byte out of range")
+  actlist[#actlist+1] = n
+end
+
+-- Add action to list with optional arg. Advance buffer pos, too.
+local function waction(action, a, num)
+  wputxb(assert(map_action[action], "bad action name `"..action.."'"))
+  if a then actargs[#actargs+1] = a end
+  if a or num then secpos = secpos + (num or 1) end
+end
+
+-- Add call to embedded DynASM C code.
+local function wcall(func, args)
+  wline(format("dasm_%s(Dst, %s);", func, concat(args, ", ")), true)
+end
+
+-- Delete duplicate action list chunks. A tad slow, but so what.
+local function dedupechunk(offset)
+  local al, as = actlist, actstr
+  local chunk = char(unpack(al, offset+1, #al))
+  local orig = find(as, chunk, 1, true)
+  if orig then
+    actargs[1] = orig-1 -- Replace with original offset.
+    for i=offset+1,#al do al[i] = nil end -- Kill dupe.
+  else
+    actstr = as..chunk
+  end
+end
+
+-- Flush action list (intervening C code or buffer pos overflow).
+local function wflush(term)
+  local offset = actargs[1]
+  if #actlist == offset then return end -- Nothing to flush.
+  if not term then waction("STOP") end -- Terminate action list.
+  dedupechunk(offset)
+  wcall("put", actargs) -- Add call to dasm_put().
+  actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
+  secpos = 1 -- The actionlist offset occupies a buffer position, too.
+end
+
+-- Put escaped byte.
+local function wputb(n)
+  if n >= actfirst then waction("ESC") end -- Need to escape byte.
+  wputxb(n)
+end
+
+------------------------------------------------------------------------------
+
+-- Global label name -> global label number. With auto assignment on 1st use.
+local next_global = 10
+local map_global = setmetatable({}, { __index = function(t, name)
+  if not match(name, "^[%a_][%w_@]*$") then werror("bad global label") end
+  local n = next_global
+  if n > 246 then werror("too many global labels") end
+  next_global = n + 1
+  t[name] = n
+  return n
+end})
+
+-- Dump global labels.
+local function dumpglobals(out, lvl)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("Global labels:\n")
+  for i=10,next_global-1 do
+    out:write(format("  %s\n", t[i]))
+  end
+  out:write("\n")
+end
+
+-- Write global label enum.
+local function writeglobals(out, prefix)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("enum {\n")
+  for i=10,next_global-1 do
+    out:write("  ", prefix, gsub(t[i], "@.*", ""), ",\n")
+  end
+  out:write("  ", prefix, "_MAX\n};\n")
+end
+
+-- Write global label names.
+local function writeglobalnames(out, name)
+  local t = {}
+  for name, n in pairs(map_global) do t[n] = name end
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=10,next_global-1 do
+    out:write("  \"", t[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Extern label name -> extern label number. With auto assignment on 1st use.
+local next_extern = -1
+local map_extern = setmetatable({}, { __index = function(t, name)
+  -- No restrictions on the name for now.
+  local n = next_extern
+  if n < -256 then werror("too many extern labels") end
+  next_extern = n - 1
+  t[name] = n
+  return n
+end})
+
+-- Dump extern labels.
+local function dumpexterns(out, lvl)
+  local t = {}
+  for name, n in pairs(map_extern) do t[-n] = name end
+  out:write("Extern labels:\n")
+  for i=1,-next_extern-1 do
+    out:write(format("  %s\n", t[i]))
+  end
+  out:write("\n")
+end
+
+-- Write extern label names.
+local function writeexternnames(out, name)
+  local t = {}
+  for name, n in pairs(map_extern) do t[-n] = name end
+  out:write("static const char *const ", name, "[] = {\n")
+  for i=1,-next_extern-1 do
+    out:write("  \"", t[i], "\",\n")
+  end
+  out:write("  (const char *)0\n};\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Arch-specific maps.
+local map_archdef = {}		-- Ext. register name -> int. name.
+local map_reg_rev = {}		-- Int. register name -> ext. name.
+local map_reg_num = {}		-- Int. register name -> register number.
+local map_reg_opsize = {}	-- Int. register name -> operand size.
+local map_reg_valid_base = {}	-- Int. register name -> valid base register?
+local map_reg_valid_index = {}	-- Int. register name -> valid index register?
+local map_reg_needrex = {}	-- Int. register name -> need rex vs. no rex.
+local reg_list = {}		-- Canonical list of int. register names.
+
+local map_type = {}		-- Type name -> { ctype, reg }
+local ctypenum = 0		-- Type number (for _PTx macros).
+
+local addrsize = x64 and "q" or "d"	-- Size for address operands.
+
+-- Helper functions to fill register maps.
+local function mkrmap(sz, cl, names)
+  local cname = format("@%s", sz)
+  reg_list[#reg_list+1] = cname
+  map_archdef[cl] = cname
+  map_reg_rev[cname] = cl
+  map_reg_num[cname] = -1
+  map_reg_opsize[cname] = sz
+  if sz == addrsize or sz == "d" then
+    map_reg_valid_base[cname] = true
+    map_reg_valid_index[cname] = true
+  end
+  if names then
+    for n,name in ipairs(names) do
+      local iname = format("@%s%x", sz, n-1)
+      reg_list[#reg_list+1] = iname
+      map_archdef[name] = iname
+      map_reg_rev[iname] = name
+      map_reg_num[iname] = n-1
+      map_reg_opsize[iname] = sz
+      if sz == "b" and n > 4 then map_reg_needrex[iname] = false end
+      if sz == addrsize or sz == "d" then
+	map_reg_valid_base[iname] = true
+	map_reg_valid_index[iname] = true
+      end
+    end
+  end
+  for i=0,(x64 and sz ~= "f") and 15 or 7 do
+    local needrex = sz == "b" and i > 3
+    local iname = format("@%s%x%s", sz, i, needrex and "R" or "")
+    if needrex then map_reg_needrex[iname] = true end
+    local name
+    if sz == "o" then name = format("xmm%d", i)
+    elseif sz == "f" then name = format("st%d", i)
+    else name = format("r%d%s", i, sz == addrsize and "" or sz) end
+    map_archdef[name] = iname
+    if not map_reg_rev[iname] then
+      reg_list[#reg_list+1] = iname
+      map_reg_rev[iname] = name
+      map_reg_num[iname] = i
+      map_reg_opsize[iname] = sz
+      if sz == addrsize or sz == "d" then
+	map_reg_valid_base[iname] = true
+	map_reg_valid_index[iname] = true
+      end
+    end
+  end
+  reg_list[#reg_list+1] = ""
+end
+
+-- Integer registers (qword, dword, word and byte sized).
+if x64 then
+  mkrmap("q", "Rq", {"rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi"})
+end
+mkrmap("d", "Rd", {"eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi"})
+mkrmap("w", "Rw", {"ax", "cx", "dx", "bx", "sp", "bp", "si", "di"})
+mkrmap("b", "Rb", {"al", "cl", "dl", "bl", "ah", "ch", "dh", "bh"})
+map_reg_valid_index[map_archdef.esp] = false
+if x64 then map_reg_valid_index[map_archdef.rsp] = false end
+map_archdef["Ra"] = "@"..addrsize
+
+-- FP registers (internally tword sized, but use "f" as operand size).
+mkrmap("f", "Rf")
+
+-- SSE registers (oword sized, but qword and dword accessible).
+mkrmap("o", "xmm")
+
+-- Operand size prefixes to codes.
+local map_opsize = {
+  byte = "b", word = "w", dword = "d", qword = "q", oword = "o", tword = "t",
+  aword = addrsize,
+}
+
+-- Operand size code to number.
+local map_opsizenum = {
+  b = 1, w = 2, d = 4, q = 8, o = 16, t = 10,
+}
+
+-- Operand size code to name.
+local map_opsizename = {
+  b = "byte", w = "word", d = "dword", q = "qword", o = "oword", t = "tword",
+  f = "fpword",
+}
+
+-- Valid index register scale factors.
+local map_xsc = {
+  ["1"] = 0, ["2"] = 1, ["4"] = 2, ["8"] = 3,
+}
+
+-- Condition codes.
+local map_cc = {
+  o = 0, no = 1, b = 2, nb = 3, e = 4, ne = 5, be = 6, nbe = 7,
+  s = 8, ns = 9, p = 10, np = 11, l = 12, nl = 13, le = 14, nle = 15,
+  c = 2, nae = 2, nc = 3, ae = 3, z = 4, nz = 5, na = 6, a = 7,
+  pe = 10, po = 11, nge = 12, ge = 13, ng = 14, g = 15,
+}
+
+
+-- Reverse defines for registers.
+function _M.revdef(s)
+  return gsub(s, "@%w+", map_reg_rev)
+end
+
+-- Dump register names and numbers
+local function dumpregs(out)
+  out:write("Register names, sizes and internal numbers:\n")
+  for _,reg in ipairs(reg_list) do
+    if reg == "" then
+      out:write("\n")
+    else
+      local name = map_reg_rev[reg]
+      local num = map_reg_num[reg]
+      local opsize = map_opsizename[map_reg_opsize[reg]]
+      out:write(format("  %-5s %-8s %s\n", name, opsize,
+		       num < 0 and "(variable)" or num))
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Put action for label arg (IMM_LG, IMM_PC, REL_LG, REL_PC).
+local function wputlabel(aprefix, imm, num)
+  if type(imm) == "number" then
+    if imm < 0 then
+      waction("EXTERN")
+      wputxb(aprefix == "IMM_" and 0 or 1)
+      imm = -imm-1
+    else
+      waction(aprefix.."LG", nil, num);
+    end
+    wputxb(imm)
+  else
+    waction(aprefix.."PC", imm, num)
+  end
+end
+
+-- Put signed byte or arg.
+local function wputsbarg(n)
+  if type(n) == "number" then
+    if n < -128 or n > 127 then
+      werror("signed immediate byte out of range")
+    end
+    if n < 0 then n = n + 256 end
+    wputb(n)
+  else waction("IMM_S", n) end
+end
+
+-- Put unsigned byte or arg.
+local function wputbarg(n)
+  if type(n) == "number" then
+    if n < 0 or n > 255 then
+      werror("unsigned immediate byte out of range")
+    end
+    wputb(n)
+  else waction("IMM_B", n) end
+end
+
+-- Put unsigned word or arg.
+local function wputwarg(n)
+  if type(n) == "number" then
+    if shr(n, 16) ~= 0 then
+      werror("unsigned immediate word out of range")
+    end
+    wputb(band(n, 255)); wputb(shr(n, 8));
+  else waction("IMM_W", n) end
+end
+
+-- Put signed or unsigned dword or arg.
+local function wputdarg(n)
+  local tn = type(n)
+  if tn == "number" then
+    wputb(band(n, 255))
+    wputb(band(shr(n, 8), 255))
+    wputb(band(shr(n, 16), 255))
+    wputb(shr(n, 24))
+  elseif tn == "table" then
+    wputlabel("IMM_", n[1], 1)
+  else
+    waction("IMM_D", n)
+  end
+end
+
+-- Put operand-size dependent number or arg (defaults to dword).
+local function wputszarg(sz, n)
+  if not sz or sz == "d" or sz == "q" then wputdarg(n)
+  elseif sz == "w" then wputwarg(n)
+  elseif sz == "b" then wputbarg(n)
+  elseif sz == "s" then wputsbarg(n)
+  else werror("bad operand size") end
+end
+
+-- Put multi-byte opcode with operand-size dependent modifications.
+local function wputop(sz, op, rex)
+  local r
+  if rex ~= 0 and not x64 then werror("bad operand size") end
+  if sz == "w" then wputb(102) end
+  -- Needs >32 bit numbers, but only for crc32 eax, word [ebx]
+  if op >= 4294967296 then r = op%4294967296 wputb((op-r)/4294967296) op = r end
+  if op >= 16777216 then wputb(shr(op, 24)); op = band(op, 0xffffff) end
+  if op >= 65536 then
+    if rex ~= 0 then
+      local opc3 = band(op, 0xffff00)
+      if opc3 == 0x0f3a00 or opc3 == 0x0f3800 then
+	wputb(64 + band(rex, 15)); rex = 0
+      end
+    end
+    wputb(shr(op, 16)); op = band(op, 0xffff)
+  end
+  if op >= 256 then
+    local b = shr(op, 8)
+    if b == 15 and rex ~= 0 then wputb(64 + band(rex, 15)); rex = 0 end
+    wputb(b)
+    op = band(op, 255)
+  end
+  if rex ~= 0 then wputb(64 + band(rex, 15)) end
+  if sz == "b" then op = op - 1 end
+  wputb(op)
+end
+
+-- Put ModRM or SIB formatted byte.
+local function wputmodrm(m, s, rm, vs, vrm)
+  assert(m < 4 and s < 16 and rm < 16, "bad modrm operands")
+  wputb(shl(m, 6) + shl(band(s, 7), 3) + band(rm, 7))
+end
+
+-- Put ModRM/SIB plus optional displacement.
+local function wputmrmsib(t, imark, s, vsreg)
+  local vreg, vxreg
+  local reg, xreg = t.reg, t.xreg
+  if reg and reg < 0 then reg = 0; vreg = t.vreg end
+  if xreg and xreg < 0 then xreg = 0; vxreg = t.vxreg end
+  if s < 0 then s = 0 end
+
+  -- Register mode.
+  if sub(t.mode, 1, 1) == "r" then
+    wputmodrm(3, s, reg)
+    if vsreg then waction("VREG", vsreg); wputxb(2) end
+    if vreg then waction("VREG", vreg); wputxb(0) end
+    return
+  end
+
+  local disp = t.disp
+  local tdisp = type(disp)
+  -- No base register?
+  if not reg then
+    local riprel = false
+    if xreg then
+      -- Indexed mode with index register only.
+      -- [xreg*xsc+disp] -> (0, s, esp) (xsc, xreg, ebp)
+      wputmodrm(0, s, 4)
+      if imark == "I" then waction("MARK") end
+      if vsreg then waction("VREG", vsreg); wputxb(2) end
+      wputmodrm(t.xsc, xreg, 5)
+      if vxreg then waction("VREG", vxreg); wputxb(3) end
+    else
+      -- Pure 32 bit displacement.
+      if x64 and tdisp ~= "table" then
+	wputmodrm(0, s, 4) -- [disp] -> (0, s, esp) (0, esp, ebp)
+	if imark == "I" then waction("MARK") end
+	wputmodrm(0, 4, 5)
+      else
+	riprel = x64
+	wputmodrm(0, s, 5) -- [disp|rip-label] -> (0, s, ebp)
+	if imark == "I" then waction("MARK") end
+      end
+      if vsreg then waction("VREG", vsreg); wputxb(2) end
+    end
+    if riprel then -- Emit rip-relative displacement.
+      if match("UWSiI", imark) then
+	werror("NYI: rip-relative displacement followed by immediate")
+      end
+      -- The previous byte in the action buffer cannot be 0xe9 or 0x80-0x8f.
+      wputlabel("REL_", disp[1], 2)
+    else
+      wputdarg(disp)
+    end
+    return
+  end
+
+  local m
+  if tdisp == "number" then -- Check displacement size at assembly time.
+    if disp == 0 and band(reg, 7) ~= 5 then -- [ebp] -> [ebp+0] (in SIB, too)
+      if not vreg then m = 0 end -- Force DISP to allow [Rd(5)] -> [ebp+0]
+    elseif disp >= -128 and disp <= 127 then m = 1
+    else m = 2 end
+  elseif tdisp == "table" then
+    m = 2
+  end
+
+  -- Index register present or esp as base register: need SIB encoding.
+  if xreg or band(reg, 7) == 4 then
+    wputmodrm(m or 2, s, 4) -- ModRM.
+    if m == nil or imark == "I" then waction("MARK") end
+    if vsreg then waction("VREG", vsreg); wputxb(2) end
+    wputmodrm(t.xsc or 0, xreg or 4, reg) -- SIB.
+    if vxreg then waction("VREG", vxreg); wputxb(3) end
+    if vreg then waction("VREG", vreg); wputxb(1) end
+  else
+    wputmodrm(m or 2, s, reg) -- ModRM.
+    if (imark == "I" and (m == 1 or m == 2)) or
+       (m == nil and (vsreg or vreg)) then waction("MARK") end
+    if vsreg then waction("VREG", vsreg); wputxb(2) end
+    if vreg then waction("VREG", vreg); wputxb(1) end
+  end
+
+  -- Put displacement.
+  if m == 1 then wputsbarg(disp)
+  elseif m == 2 then wputdarg(disp)
+  elseif m == nil then waction("DISP", disp) end
+end
+
+------------------------------------------------------------------------------
+
+-- Return human-readable operand mode string.
+local function opmodestr(op, args)
+  local m = {}
+  for i=1,#args do
+    local a = args[i]
+    m[#m+1] = sub(a.mode, 1, 1)..(a.opsize or "?")
+  end
+  return op.." "..concat(m, ",")
+end
+
+-- Convert number to valid integer or nil.
+local function toint(expr)
+  local n = tonumber(expr)
+  if n then
+    if n % 1 ~= 0 or n < -2147483648 or n > 4294967295 then
+      werror("bad integer number `"..expr.."'")
+    end
+    return n
+  end
+end
+
+-- Parse immediate expression.
+local function immexpr(expr)
+  -- &expr (pointer)
+  if sub(expr, 1, 1) == "&" then
+    return "iPJ", format("(ptrdiff_t)(%s)", sub(expr,2))
+  end
+
+  local prefix = sub(expr, 1, 2)
+  -- =>expr (pc label reference)
+  if prefix == "=>" then
+    return "iJ", sub(expr, 3)
+  end
+  -- ->name (global label reference)
+  if prefix == "->" then
+    return "iJ", map_global[sub(expr, 3)]
+  end
+
+  -- [<>][1-9] (local label reference)
+  local dir, lnum = match(expr, "^([<>])([1-9])$")
+  if dir then -- Fwd: 247-255, Bkwd: 1-9.
+    return "iJ", lnum + (dir == ">" and 246 or 0)
+  end
+
+  local extname = match(expr, "^extern%s+(%S+)$")
+  if extname then
+    return "iJ", map_extern[extname]
+  end
+
+  -- expr (interpreted as immediate)
+  return "iI", expr
+end
+
+-- Parse displacement expression: +-num, +-expr, +-opsize*num
+local function dispexpr(expr)
+  local disp = expr == "" and 0 or toint(expr)
+  if disp then return disp end
+  local c, dispt = match(expr, "^([+-])%s*(.+)$")
+  if c == "+" then
+    expr = dispt
+  elseif not c then
+    werror("bad displacement expression `"..expr.."'")
+  end
+  local opsize, tailops = match(dispt, "^(%w+)%s*%*%s*(.+)$")
+  local ops, imm = map_opsize[opsize], toint(tailops)
+  if ops and imm then
+    if c == "-" then imm = -imm end
+    return imm*map_opsizenum[ops]
+  end
+  local mode, iexpr = immexpr(dispt)
+  if mode == "iJ" then
+    if c == "-" then werror("cannot invert label reference") end
+    return { iexpr }
+  end
+  return expr -- Need to return original signed expression.
+end
+
+-- Parse register or type expression.
+local function rtexpr(expr)
+  if not expr then return end
+  local tname, ovreg = match(expr, "^([%w_]+):(@[%w_]+)$")
+  local tp = map_type[tname or expr]
+  if tp then
+    local reg = ovreg or tp.reg
+    local rnum = map_reg_num[reg]
+    if not rnum then
+      werror("type `"..(tname or expr).."' needs a register override")
+    end
+    if not map_reg_valid_base[reg] then
+      werror("bad base register override `"..(map_reg_rev[reg] or reg).."'")
+    end
+    return reg, rnum, tp
+  end
+  return expr, map_reg_num[expr]
+end
+
+-- Parse operand and return { mode, opsize, reg, xreg, xsc, disp, imm }.
+local function parseoperand(param)
+  local t = {}
+
+  local expr = param
+  local opsize, tailops = match(param, "^(%w+)%s*(.+)$")
+  if opsize then
+    t.opsize = map_opsize[opsize]
+    if t.opsize then expr = tailops end
+  end
+
+  local br = match(expr, "^%[%s*(.-)%s*%]$")
+  repeat
+    if br then
+      t.mode = "xm"
+
+      -- [disp]
+      t.disp = toint(br)
+      if t.disp then
+	t.mode = x64 and "xm" or "xmO"
+	break
+      end
+
+      -- [reg...]
+      local tp
+      local reg, tailr = match(br, "^([@%w_:]+)%s*(.*)$")
+      reg, t.reg, tp = rtexpr(reg)
+      if not t.reg then
+	-- [expr]
+	t.mode = x64 and "xm" or "xmO"
+	t.disp = dispexpr("+"..br)
+	break
+      end
+
+      if t.reg == -1 then
+	t.vreg, tailr = match(tailr, "^(%b())(.*)$")
+	if not t.vreg then werror("bad variable register expression") end
+      end
+
+      -- [xreg*xsc] or [xreg*xsc+-disp] or [xreg*xsc+-expr]
+      local xsc, tailsc = match(tailr, "^%*%s*([1248])%s*(.*)$")
+      if xsc then
+	if not map_reg_valid_index[reg] then
+	  werror("bad index register `"..map_reg_rev[reg].."'")
+	end
+	t.xsc = map_xsc[xsc]
+	t.xreg = t.reg
+	t.vxreg = t.vreg
+	t.reg = nil
+	t.vreg = nil
+	t.disp = dispexpr(tailsc)
+	break
+      end
+      if not map_reg_valid_base[reg] then
+	werror("bad base register `"..map_reg_rev[reg].."'")
+      end
+
+      -- [reg] or [reg+-disp]
+      t.disp = toint(tailr) or (tailr == "" and 0)
+      if t.disp then break end
+
+      -- [reg+xreg...]
+      local xreg, tailx = match(tailr, "^+%s*([@%w_:]+)%s*(.*)$")
+      xreg, t.xreg, tp = rtexpr(xreg)
+      if not t.xreg then
+	-- [reg+-expr]
+	t.disp = dispexpr(tailr)
+	break
+      end
+      if not map_reg_valid_index[xreg] then
+	werror("bad index register `"..map_reg_rev[xreg].."'")
+      end
+
+      if t.xreg == -1 then
+	t.vxreg, tailx = match(tailx, "^(%b())(.*)$")
+	if not t.vxreg then werror("bad variable register expression") end
+      end
+
+      -- [reg+xreg*xsc...]
+      local xsc, tailsc = match(tailx, "^%*%s*([1248])%s*(.*)$")
+      if xsc then
+	t.xsc = map_xsc[xsc]
+	tailx = tailsc
+      end
+
+      -- [...] or [...+-disp] or [...+-expr]
+      t.disp = dispexpr(tailx)
+    else
+      -- imm or opsize*imm
+      local imm = toint(expr)
+      if not imm and sub(expr, 1, 1) == "*" and t.opsize then
+	imm = toint(sub(expr, 2))
+	if imm then
+	  imm = imm * map_opsizenum[t.opsize]
+	  t.opsize = nil
+	end
+      end
+      if imm then
+	if t.opsize then werror("bad operand size override") end
+	local m = "i"
+	if imm == 1 then m = m.."1" end
+	if imm >= 4294967168 and imm <= 4294967295 then imm = imm-4294967296 end
+	if imm >= -128 and imm <= 127 then m = m.."S" end
+	t.imm = imm
+	t.mode = m
+	break
+      end
+
+      local tp
+      local reg, tailr = match(expr, "^([@%w_:]+)%s*(.*)$")
+      reg, t.reg, tp = rtexpr(reg)
+      if t.reg then
+	if t.reg == -1 then
+	  t.vreg, tailr = match(tailr, "^(%b())(.*)$")
+	  if not t.vreg then werror("bad variable register expression") end
+	end
+	-- reg
+	if tailr == "" then
+	  if t.opsize then werror("bad operand size override") end
+	  t.opsize = map_reg_opsize[reg]
+	  if t.opsize == "f" then
+	    t.mode = t.reg == 0 and "fF" or "f"
+	  else
+	    if reg == "@w4" or (x64 and reg == "@d4") then
+	      wwarn("bad idea, try again with `"..(x64 and "rsp'" or "esp'"))
+	    end
+	    t.mode = t.reg == 0 and "rmR" or (reg == "@b1" and "rmC" or "rm")
+	  end
+	  t.needrex = map_reg_needrex[reg]
+	  break
+	end
+
+	-- type[idx], type[idx].field, type->field -> [reg+offset_expr]
+	if not tp then werror("bad operand `"..param.."'") end
+	t.mode = "xm"
+	t.disp = format(tp.ctypefmt, tailr)
+      else
+	t.mode, t.imm = immexpr(expr)
+	if sub(t.mode, -1) == "J" then
+	  if t.opsize and t.opsize ~= addrsize then
+	    werror("bad operand size override")
+	  end
+	  t.opsize = addrsize
+	end
+      end
+    end
+  until true
+  return t
+end
+
+------------------------------------------------------------------------------
+-- x86 Template String Description
+-- ===============================
+--
+-- Each template string is a list of [match:]pattern pairs,
+-- separated by "|". The first match wins. No match means a
+-- bad or unsupported combination of operand modes or sizes.
+--
+-- The match part and the ":" is omitted if the operation has
+-- no operands. Otherwise the first N characters are matched
+-- against the mode strings of each of the N operands.
+--
+-- The mode string for each operand type is (see parseoperand()):
+--   Integer register: "rm", +"R" for eax, ax, al, +"C" for cl
+--   FP register:      "f",  +"F" for st0
+--   Index operand:    "xm", +"O" for [disp] (pure offset)
+--   Immediate:        "i",  +"S" for signed 8 bit, +"1" for 1,
+--                     +"I" for arg, +"P" for pointer
+--   Any:              +"J" for valid jump targets
+--
+-- So a match character "m" (mixed) matches both an integer register
+-- and an index operand (to be encoded with the ModRM/SIB scheme).
+-- But "r" matches only a register and "x" only an index operand
+-- (e.g. for FP memory access operations).
+--
+-- The operand size match string starts right after the mode match
+-- characters and ends before the ":". "dwb" or "qdwb" is assumed, if empty.
+-- The effective data size of the operation is matched against this list.
+--
+-- If only the regular "b", "w", "d", "q", "t" operand sizes are
+-- present, then all operands must be the same size. Unspecified sizes
+-- are ignored, but at least one operand must have a size or the pattern
+-- won't match (use the "byte", "word", "dword", "qword", "tword"
+-- operand size overrides. E.g.: mov dword [eax], 1).
+--
+-- If the list has a "1" or "2" prefix, the operand size is taken
+-- from the respective operand and any other operand sizes are ignored.
+-- If the list contains only ".", all operand sizes are ignored.
+-- If the list has a "/" prefix, the concatenated (mixed) operand sizes
+-- are compared to the match.
+--
+-- E.g. "rrdw" matches for either two dword registers or two word
+-- registers. "Fx2dq" matches an st0 operand plus an index operand
+-- pointing to a dword (float) or qword (double).
+--
+-- Every character after the ":" is part of the pattern string:
+--   Hex chars are accumulated to form the opcode (left to right).
+--   "n"       disables the standard opcode mods
+--             (otherwise: -1 for "b", o16 prefix for "w", rex.w for "q")
+--   "X"       Force REX.W.
+--   "r"/"R"   adds the reg. number from the 1st/2nd operand to the opcode.
+--   "m"/"M"   generates ModRM/SIB from the 1st/2nd operand.
+--             The spare 3 bits are either filled with the last hex digit or
+--             the result from a previous "r"/"R". The opcode is restored.
+--
+-- All of the following characters force a flush of the opcode:
+--   "o"/"O"   stores a pure 32 bit disp (offset) from the 1st/2nd operand.
+--   "S"       stores a signed 8 bit immediate from the last operand.
+--   "U"       stores an unsigned 8 bit immediate from the last operand.
+--   "W"       stores an unsigned 16 bit immediate from the last operand.
+--   "i"       stores an operand sized immediate from the last operand.
+--   "I"       dito, but generates an action code to optionally modify
+--             the opcode (+2) for a signed 8 bit immediate.
+--   "J"       generates one of the REL action codes from the last operand.
+--
+------------------------------------------------------------------------------
+
+-- Template strings for x86 instructions. Ordered by first opcode byte.
+-- Unimplemented opcodes (deliberate omissions) are marked with *.
+local map_op = {
+  -- 00-05: add...
+  -- 06: *push es
+  -- 07: *pop es
+  -- 08-0D: or...
+  -- 0E: *push cs
+  -- 0F: two byte opcode prefix
+  -- 10-15: adc...
+  -- 16: *push ss
+  -- 17: *pop ss
+  -- 18-1D: sbb...
+  -- 1E: *push ds
+  -- 1F: *pop ds
+  -- 20-25: and...
+  es_0 =	"26",
+  -- 27: *daa
+  -- 28-2D: sub...
+  cs_0 =	"2E",
+  -- 2F: *das
+  -- 30-35: xor...
+  ss_0 =	"36",
+  -- 37: *aaa
+  -- 38-3D: cmp...
+  ds_0 =	"3E",
+  -- 3F: *aas
+  inc_1 =	x64 and "m:FF0m" or "rdw:40r|m:FF0m",
+  dec_1 =	x64 and "m:FF1m" or "rdw:48r|m:FF1m",
+  push_1 =	(x64 and "rq:n50r|rw:50r|mq:nFF6m|mw:FF6m" or
+			 "rdw:50r|mdw:FF6m").."|S.:6AS|ib:n6Ai|i.:68i",
+  pop_1 =	x64 and "rq:n58r|rw:58r|mq:n8F0m|mw:8F0m" or "rdw:58r|mdw:8F0m",
+  -- 60: *pusha, *pushad, *pushaw
+  -- 61: *popa, *popad, *popaw
+  -- 62: *bound rdw,x
+  -- 63: x86: *arpl mw,rw
+  movsxd_2 =	x64 and "rm/qd:63rM",
+  fs_0 =	"64",
+  gs_0 =	"65",
+  o16_0 =	"66",
+  a16_0 =	not x64 and "67" or nil,
+  a32_0 =	x64 and "67",
+  -- 68: push idw
+  -- 69: imul rdw,mdw,idw
+  -- 6A: push ib
+  -- 6B: imul rdw,mdw,S
+  -- 6C: *insb
+  -- 6D: *insd, *insw
+  -- 6E: *outsb
+  -- 6F: *outsd, *outsw
+  -- 70-7F: jcc lb
+  -- 80: add... mb,i
+  -- 81: add... mdw,i
+  -- 82: *undefined
+  -- 83: add... mdw,S
+  test_2 =	"mr:85Rm|rm:85rM|Ri:A9ri|mi:F70mi",
+  -- 86: xchg rb,mb
+  -- 87: xchg rdw,mdw
+  -- 88: mov mb,r
+  -- 89: mov mdw,r
+  -- 8A: mov r,mb
+  -- 8B: mov r,mdw
+  -- 8C: *mov mdw,seg
+  lea_2 =	"rx1dq:8DrM",
+  -- 8E: *mov seg,mdw
+  -- 8F: pop mdw
+  nop_0 =	"90",
+  xchg_2 =	"Rrqdw:90R|rRqdw:90r|rm:87rM|mr:87Rm",
+  cbw_0 =	"6698",
+  cwde_0 =	"98",
+  cdqe_0 =	"4898",
+  cwd_0 =	"6699",
+  cdq_0 =	"99",
+  cqo_0 =	"4899",
+  -- 9A: *call iw:idw
+  wait_0 =	"9B",
+  fwait_0 =	"9B",
+  pushf_0 =	"9C",
+  pushfd_0 =	not x64 and "9C",
+  pushfq_0 =	x64 and "9C",
+  popf_0 =	"9D",
+  popfd_0 =	not x64 and "9D",
+  popfq_0 =	x64 and "9D",
+  sahf_0 =	"9E",
+  lahf_0 =	"9F",
+  mov_2 =	"OR:A3o|RO:A1O|mr:89Rm|rm:8BrM|rib:nB0ri|ridw:B8ri|mi:C70mi",
+  movsb_0 =	"A4",
+  movsw_0 =	"66A5",
+  movsd_0 =	"A5",
+  cmpsb_0 =	"A6",
+  cmpsw_0 =	"66A7",
+  cmpsd_0 =	"A7",
+  -- A8: test Rb,i
+  -- A9: test Rdw,i
+  stosb_0 =	"AA",
+  stosw_0 =	"66AB",
+  stosd_0 =	"AB",
+  lodsb_0 =	"AC",
+  lodsw_0 =	"66AD",
+  lodsd_0 =	"AD",
+  scasb_0 =	"AE",
+  scasw_0 =	"66AF",
+  scasd_0 =	"AF",
+  -- B0-B7: mov rb,i
+  -- B8-BF: mov rdw,i
+  -- C0: rol... mb,i
+  -- C1: rol... mdw,i
+  ret_1 =	"i.:nC2W",
+  ret_0 =	"C3",
+  -- C4: *les rdw,mq
+  -- C5: *lds rdw,mq
+  -- C6: mov mb,i
+  -- C7: mov mdw,i
+  -- C8: *enter iw,ib
+  leave_0 =	"C9",
+  -- CA: *retf iw
+  -- CB: *retf
+  int3_0 =	"CC",
+  int_1 =	"i.:nCDU",
+  into_0 =	"CE",
+  -- CF: *iret
+  -- D0: rol... mb,1
+  -- D1: rol... mdw,1
+  -- D2: rol... mb,cl
+  -- D3: rol... mb,cl
+  -- D4: *aam ib
+  -- D5: *aad ib
+  -- D6: *salc
+  -- D7: *xlat
+  -- D8-DF: floating point ops
+  -- E0: *loopne
+  -- E1: *loope
+  -- E2: *loop
+  -- E3: *jcxz, *jecxz
+  -- E4: *in Rb,ib
+  -- E5: *in Rdw,ib
+  -- E6: *out ib,Rb
+  -- E7: *out ib,Rdw
+  call_1 =	x64 and "mq:nFF2m|J.:E8nJ" or "md:FF2m|J.:E8J",
+  jmp_1 =	x64 and "mq:nFF4m|J.:E9nJ" or "md:FF4m|J.:E9J", -- short: EB
+  -- EA: *jmp iw:idw
+  -- EB: jmp ib
+  -- EC: *in Rb,dx
+  -- ED: *in Rdw,dx
+  -- EE: *out dx,Rb
+  -- EF: *out dx,Rdw
+  lock_0 =	"F0",
+  int1_0 =	"F1",
+  repne_0 =	"F2",
+  repnz_0 =	"F2",
+  rep_0 =	"F3",
+  repe_0 =	"F3",
+  repz_0 =	"F3",
+  -- F4: *hlt
+  cmc_0 =	"F5",
+  -- F6: test... mb,i; div... mb
+  -- F7: test... mdw,i; div... mdw
+  clc_0 =	"F8",
+  stc_0 =	"F9",
+  -- FA: *cli
+  cld_0 =	"FC",
+  std_0 =	"FD",
+  -- FE: inc... mb
+  -- FF: inc... mdw
+
+  -- misc ops
+  not_1 =	"m:F72m",
+  neg_1 =	"m:F73m",
+  mul_1 =	"m:F74m",
+  imul_1 =	"m:F75m",
+  div_1 =	"m:F76m",
+  idiv_1 =	"m:F77m",
+
+  imul_2 =	"rmqdw:0FAFrM|rIqdw:69rmI|rSqdw:6BrmS|riqdw:69rmi",
+  imul_3 =	"rmIqdw:69rMI|rmSqdw:6BrMS|rmiqdw:69rMi",
+
+  movzx_2 =	"rm/db:0FB6rM|rm/qb:|rm/wb:0FB6rM|rm/dw:0FB7rM|rm/qw:",
+  movsx_2 =	"rm/db:0FBErM|rm/qb:|rm/wb:0FBErM|rm/dw:0FBFrM|rm/qw:",
+
+  bswap_1 =	"rqd:0FC8r",
+  bsf_2 =	"rmqdw:0FBCrM",
+  bsr_2 =	"rmqdw:0FBDrM",
+  bt_2 =	"mrqdw:0FA3Rm|miqdw:0FBA4mU",
+  btc_2 =	"mrqdw:0FBBRm|miqdw:0FBA7mU",
+  btr_2 =	"mrqdw:0FB3Rm|miqdw:0FBA6mU",
+  bts_2 =	"mrqdw:0FABRm|miqdw:0FBA5mU",
+
+  rdtsc_0 =	"0F31", -- P1+
+  cpuid_0 =	"0FA2", -- P1+
+
+  -- floating point ops
+  fst_1 =	"ff:DDD0r|xd:D92m|xq:nDD2m",
+  fstp_1 =	"ff:DDD8r|xd:D93m|xq:nDD3m|xt:DB7m",
+  fld_1 =	"ff:D9C0r|xd:D90m|xq:nDD0m|xt:DB5m",
+
+  fpop_0 =	"DDD8", -- Alias for fstp st0.
+
+  fist_1 =	"xw:nDF2m|xd:DB2m",
+  fistp_1 =	"xw:nDF3m|xd:DB3m|xq:nDF7m",
+  fild_1 =	"xw:nDF0m|xd:DB0m|xq:nDF5m",
+
+  fxch_0 =	"D9C9",
+  fxch_1 =	"ff:D9C8r",
+  fxch_2 =	"fFf:D9C8r|Fff:D9C8R",
+
+  fucom_1 =	"ff:DDE0r",
+  fucom_2 =	"Fff:DDE0R",
+  fucomp_1 =	"ff:DDE8r",
+  fucomp_2 =	"Fff:DDE8R",
+  fucomi_1 =	"ff:DBE8r", -- P6+
+  fucomi_2 =	"Fff:DBE8R", -- P6+
+  fucomip_1 =	"ff:DFE8r", -- P6+
+  fucomip_2 =	"Fff:DFE8R", -- P6+
+  fcomi_1 =	"ff:DBF0r", -- P6+
+  fcomi_2 =	"Fff:DBF0R", -- P6+
+  fcomip_1 =	"ff:DFF0r", -- P6+
+  fcomip_2 =	"Fff:DFF0R", -- P6+
+  fucompp_0 =	"DAE9",
+  fcompp_0 =	"DED9",
+
+  fldcw_1 =	"xw:nD95m",
+  fstcw_1 =	"xw:n9BD97m",
+  fnstcw_1 =	"xw:nD97m",
+  fstsw_1 =	"Rw:n9BDFE0|xw:n9BDD7m",
+  fnstsw_1 =	"Rw:nDFE0|xw:nDD7m",
+  fclex_0 =	"9BDBE2",
+  fnclex_0 =	"DBE2",
+
+  fnop_0 =	"D9D0",
+  -- D9D1-D9DF: unassigned
+
+  fchs_0 =	"D9E0",
+  fabs_0 =	"D9E1",
+  -- D9E2: unassigned
+  -- D9E3: unassigned
+  ftst_0 =	"D9E4",
+  fxam_0 =	"D9E5",
+  -- D9E6: unassigned
+  -- D9E7: unassigned
+  fld1_0 =	"D9E8",
+  fldl2t_0 =	"D9E9",
+  fldl2e_0 =	"D9EA",
+  fldpi_0 =	"D9EB",
+  fldlg2_0 =	"D9EC",
+  fldln2_0 =	"D9ED",
+  fldz_0 =	"D9EE",
+  -- D9EF: unassigned
+
+  f2xm1_0 =	"D9F0",
+  fyl2x_0 =	"D9F1",
+  fptan_0 =	"D9F2",
+  fpatan_0 =	"D9F3",
+  fxtract_0 =	"D9F4",
+  fprem1_0 =	"D9F5",
+  fdecstp_0 =	"D9F6",
+  fincstp_0 =	"D9F7",
+  fprem_0 =	"D9F8",
+  fyl2xp1_0 =	"D9F9",
+  fsqrt_0 =	"D9FA",
+  fsincos_0 =	"D9FB",
+  frndint_0 =	"D9FC",
+  fscale_0 =	"D9FD",
+  fsin_0 =	"D9FE",
+  fcos_0 =	"D9FF",
+
+  -- SSE, SSE2
+  andnpd_2 =	"rmo:660F55rM",
+  andnps_2 =	"rmo:0F55rM",
+  andpd_2 =	"rmo:660F54rM",
+  andps_2 =	"rmo:0F54rM",
+  clflush_1 =	"x.:0FAE7m",
+  cmppd_3 =	"rmio:660FC2rMU",
+  cmpps_3 =	"rmio:0FC2rMU",
+  cmpsd_3 =	"rrio:F20FC2rMU|rxi/oq:",
+  cmpss_3 =	"rrio:F30FC2rMU|rxi/od:",
+  comisd_2 =	"rro:660F2FrM|rx/oq:",
+  comiss_2 =	"rro:0F2FrM|rx/od:",
+  cvtdq2pd_2 =	"rro:F30FE6rM|rx/oq:",
+  cvtdq2ps_2 =	"rmo:0F5BrM",
+  cvtpd2dq_2 =	"rmo:F20FE6rM",
+  cvtpd2ps_2 =	"rmo:660F5ArM",
+  cvtpi2pd_2 =	"rx/oq:660F2ArM",
+  cvtpi2ps_2 =	"rx/oq:0F2ArM",
+  cvtps2dq_2 =	"rmo:660F5BrM",
+  cvtps2pd_2 =	"rro:0F5ArM|rx/oq:",
+  cvtsd2si_2 =	"rr/do:F20F2DrM|rr/qo:|rx/dq:|rxq:",
+  cvtsd2ss_2 =	"rro:F20F5ArM|rx/oq:",
+  cvtsi2sd_2 =	"rm/od:F20F2ArM|rm/oq:F20F2ArXM",
+  cvtsi2ss_2 =	"rm/od:F30F2ArM|rm/oq:F30F2ArXM",
+  cvtss2sd_2 =	"rro:F30F5ArM|rx/od:",
+  cvtss2si_2 =	"rr/do:F20F2CrM|rr/qo:|rxd:|rx/qd:",
+  cvttpd2dq_2 =	"rmo:660FE6rM",
+  cvttps2dq_2 =	"rmo:F30F5BrM",
+  cvttsd2si_2 =	"rr/do:F20F2CrM|rr/qo:|rx/dq:|rxq:",
+  cvttss2si_2 =	"rr/do:F30F2CrM|rr/qo:|rxd:|rx/qd:",
+  ldmxcsr_1 =	"xd:0FAE2m",
+  lfence_0 =	"0FAEE8",
+  maskmovdqu_2 = "rro:660FF7rM",
+  mfence_0 =	"0FAEF0",
+  movapd_2 =	"rmo:660F28rM|mro:660F29Rm",
+  movaps_2 =	"rmo:0F28rM|mro:0F29Rm",
+  movd_2 =	"rm/od:660F6ErM|rm/oq:660F6ErXM|mr/do:660F7ERm|mr/qo:",
+  movdqa_2 =	"rmo:660F6FrM|mro:660F7FRm",
+  movdqu_2 =	"rmo:F30F6FrM|mro:F30F7FRm",
+  movhlps_2 =	"rro:0F12rM",
+  movhpd_2 =	"rx/oq:660F16rM|xr/qo:n660F17Rm",
+  movhps_2 =	"rx/oq:0F16rM|xr/qo:n0F17Rm",
+  movlhps_2 =	"rro:0F16rM",
+  movlpd_2 =	"rx/oq:660F12rM|xr/qo:n660F13Rm",
+  movlps_2 =	"rx/oq:0F12rM|xr/qo:n0F13Rm",
+  movmskpd_2 =	"rr/do:660F50rM",
+  movmskps_2 =	"rr/do:0F50rM",
+  movntdq_2 =	"xro:660FE7Rm",
+  movnti_2 =	"xrqd:0FC3Rm",
+  movntpd_2 =	"xro:660F2BRm",
+  movntps_2 =	"xro:0F2BRm",
+  movq_2 =	"rro:F30F7ErM|rx/oq:|xr/qo:n660FD6Rm",
+  movsd_2 =	"rro:F20F10rM|rx/oq:|xr/qo:nF20F11Rm",
+  movss_2 =	"rro:F30F10rM|rx/od:|xr/do:F30F11Rm",
+  movupd_2 =	"rmo:660F10rM|mro:660F11Rm",
+  movups_2 =	"rmo:0F10rM|mro:0F11Rm",
+  orpd_2 =	"rmo:660F56rM",
+  orps_2 =	"rmo:0F56rM",
+  packssdw_2 =	"rmo:660F6BrM",
+  packsswb_2 =	"rmo:660F63rM",
+  packuswb_2 =	"rmo:660F67rM",
+  paddb_2 =	"rmo:660FFCrM",
+  paddd_2 =	"rmo:660FFErM",
+  paddq_2 =	"rmo:660FD4rM",
+  paddsb_2 =	"rmo:660FECrM",
+  paddsw_2 =	"rmo:660FEDrM",
+  paddusb_2 =	"rmo:660FDCrM",
+  paddusw_2 =	"rmo:660FDDrM",
+  paddw_2 =	"rmo:660FFDrM",
+  pand_2 =	"rmo:660FDBrM",
+  pandn_2 =	"rmo:660FDFrM",
+  pause_0 =	"F390",
+  pavgb_2 =	"rmo:660FE0rM",
+  pavgw_2 =	"rmo:660FE3rM",
+  pcmpeqb_2 =	"rmo:660F74rM",
+  pcmpeqd_2 =	"rmo:660F76rM",
+  pcmpeqw_2 =	"rmo:660F75rM",
+  pcmpgtb_2 =	"rmo:660F64rM",
+  pcmpgtd_2 =	"rmo:660F66rM",
+  pcmpgtw_2 =	"rmo:660F65rM",
+  pextrw_3 =	"rri/do:660FC5rMU|xri/wo:660F3A15nrMU", -- Mem op: SSE4.1 only.
+  pinsrw_3 =	"rri/od:660FC4rMU|rxi/ow:",
+  pmaddwd_2 =	"rmo:660FF5rM",
+  pmaxsw_2 =	"rmo:660FEErM",
+  pmaxub_2 =	"rmo:660FDErM",
+  pminsw_2 =	"rmo:660FEArM",
+  pminub_2 =	"rmo:660FDArM",
+  pmovmskb_2 =	"rr/do:660FD7rM",
+  pmulhuw_2 =	"rmo:660FE4rM",
+  pmulhw_2 =	"rmo:660FE5rM",
+  pmullw_2 =	"rmo:660FD5rM",
+  pmuludq_2 =	"rmo:660FF4rM",
+  por_2 =	"rmo:660FEBrM",
+  prefetchnta_1 = "xb:n0F180m",
+  prefetcht0_1 = "xb:n0F181m",
+  prefetcht1_1 = "xb:n0F182m",
+  prefetcht2_1 = "xb:n0F183m",
+  psadbw_2 =	"rmo:660FF6rM",
+  pshufd_3 =	"rmio:660F70rMU",
+  pshufhw_3 =	"rmio:F30F70rMU",
+  pshuflw_3 =	"rmio:F20F70rMU",
+  pslld_2 =	"rmo:660FF2rM|rio:660F726mU",
+  pslldq_2 =	"rio:660F737mU",
+  psllq_2 =	"rmo:660FF3rM|rio:660F736mU",
+  psllw_2 =	"rmo:660FF1rM|rio:660F716mU",
+  psrad_2 =	"rmo:660FE2rM|rio:660F724mU",
+  psraw_2 =	"rmo:660FE1rM|rio:660F714mU",
+  psrld_2 =	"rmo:660FD2rM|rio:660F722mU",
+  psrldq_2 =	"rio:660F733mU",
+  psrlq_2 =	"rmo:660FD3rM|rio:660F732mU",
+  psrlw_2 =	"rmo:660FD1rM|rio:660F712mU",
+  psubb_2 =	"rmo:660FF8rM",
+  psubd_2 =	"rmo:660FFArM",
+  psubq_2 =	"rmo:660FFBrM",
+  psubsb_2 =	"rmo:660FE8rM",
+  psubsw_2 =	"rmo:660FE9rM",
+  psubusb_2 =	"rmo:660FD8rM",
+  psubusw_2 =	"rmo:660FD9rM",
+  psubw_2 =	"rmo:660FF9rM",
+  punpckhbw_2 =	"rmo:660F68rM",
+  punpckhdq_2 =	"rmo:660F6ArM",
+  punpckhqdq_2 = "rmo:660F6DrM",
+  punpckhwd_2 =	"rmo:660F69rM",
+  punpcklbw_2 =	"rmo:660F60rM",
+  punpckldq_2 =	"rmo:660F62rM",
+  punpcklqdq_2 = "rmo:660F6CrM",
+  punpcklwd_2 =	"rmo:660F61rM",
+  pxor_2 =	"rmo:660FEFrM",
+  rcpps_2 =	"rmo:0F53rM",
+  rcpss_2 =	"rro:F30F53rM|rx/od:",
+  rsqrtps_2 =	"rmo:0F52rM",
+  rsqrtss_2 =	"rmo:F30F52rM",
+  sfence_0 =	"0FAEF8",
+  shufpd_3 =	"rmio:660FC6rMU",
+  shufps_3 =	"rmio:0FC6rMU",
+  stmxcsr_1 =   "xd:0FAE3m",
+  ucomisd_2 =	"rro:660F2ErM|rx/oq:",
+  ucomiss_2 =	"rro:0F2ErM|rx/od:",
+  unpckhpd_2 =	"rmo:660F15rM",
+  unpckhps_2 =	"rmo:0F15rM",
+  unpcklpd_2 =	"rmo:660F14rM",
+  unpcklps_2 =	"rmo:0F14rM",
+  xorpd_2 =	"rmo:660F57rM",
+  xorps_2 =	"rmo:0F57rM",
+
+  -- SSE3 ops
+  fisttp_1 =	"xw:nDF1m|xd:DB1m|xq:nDD1m",
+  addsubpd_2 =	"rmo:660FD0rM",
+  addsubps_2 =	"rmo:F20FD0rM",
+  haddpd_2 =	"rmo:660F7CrM",
+  haddps_2 =	"rmo:F20F7CrM",
+  hsubpd_2 =	"rmo:660F7DrM",
+  hsubps_2 =	"rmo:F20F7DrM",
+  lddqu_2 =	"rxo:F20FF0rM",
+  movddup_2 =	"rmo:F20F12rM",
+  movshdup_2 =	"rmo:F30F16rM",
+  movsldup_2 =	"rmo:F30F12rM",
+
+  -- SSSE3 ops
+  pabsb_2 =	"rmo:660F381CrM",
+  pabsd_2 =	"rmo:660F381ErM",
+  pabsw_2 =	"rmo:660F381DrM",
+  palignr_3 =	"rmio:660F3A0FrMU",
+  phaddd_2 =	"rmo:660F3802rM",
+  phaddsw_2 =	"rmo:660F3803rM",
+  phaddw_2 =	"rmo:660F3801rM",
+  phsubd_2 =	"rmo:660F3806rM",
+  phsubsw_2 =	"rmo:660F3807rM",
+  phsubw_2 =	"rmo:660F3805rM",
+  pmaddubsw_2 =	"rmo:660F3804rM",
+  pmulhrsw_2 =	"rmo:660F380BrM",
+  pshufb_2 =	"rmo:660F3800rM",
+  psignb_2 =	"rmo:660F3808rM",
+  psignd_2 =	"rmo:660F380ArM",
+  psignw_2 =	"rmo:660F3809rM",
+
+  -- SSE4.1 ops
+  blendpd_3 =	"rmio:660F3A0DrMU",
+  blendps_3 =	"rmio:660F3A0CrMU",
+  blendvpd_3 =	"rmRo:660F3815rM",
+  blendvps_3 =	"rmRo:660F3814rM",
+  dppd_3 =	"rmio:660F3A41rMU",
+  dpps_3 =	"rmio:660F3A40rMU",
+  extractps_3 =	"mri/do:660F3A17RmU|rri/qo:660F3A17RXmU",
+  insertps_3 =	"rrio:660F3A41rMU|rxi/od:",
+  movntdqa_2 =	"rmo:660F382ArM",
+  mpsadbw_3 =	"rmio:660F3A42rMU",
+  packusdw_2 =	"rmo:660F382BrM",
+  pblendvb_3 =	"rmRo:660F3810rM",
+  pblendw_3 =	"rmio:660F3A0ErMU",
+  pcmpeqq_2 =	"rmo:660F3829rM",
+  pextrb_3 =	"rri/do:660F3A14nRmU|rri/qo:|xri/bo:",
+  pextrd_3 =	"mri/do:660F3A16RmU",
+  pextrq_3 =	"mri/qo:660F3A16RmU",
+  -- pextrw is SSE2, mem operand is SSE4.1 only
+  phminposuw_2 = "rmo:660F3841rM",
+  pinsrb_3 =	"rri/od:660F3A20nrMU|rxi/ob:",
+  pinsrd_3 =	"rmi/od:660F3A22rMU",
+  pinsrq_3 =	"rmi/oq:660F3A22rXMU",
+  pmaxsb_2 =	"rmo:660F383CrM",
+  pmaxsd_2 =	"rmo:660F383DrM",
+  pmaxud_2 =	"rmo:660F383FrM",
+  pmaxuw_2 =	"rmo:660F383ErM",
+  pminsb_2 =	"rmo:660F3838rM",
+  pminsd_2 =	"rmo:660F3839rM",
+  pminud_2 =	"rmo:660F383BrM",
+  pminuw_2 =	"rmo:660F383ArM",
+  pmovsxbd_2 =	"rro:660F3821rM|rx/od:",
+  pmovsxbq_2 =	"rro:660F3822rM|rx/ow:",
+  pmovsxbw_2 =	"rro:660F3820rM|rx/oq:",
+  pmovsxdq_2 =	"rro:660F3825rM|rx/oq:",
+  pmovsxwd_2 =	"rro:660F3823rM|rx/oq:",
+  pmovsxwq_2 =	"rro:660F3824rM|rx/od:",
+  pmovzxbd_2 =	"rro:660F3831rM|rx/od:",
+  pmovzxbq_2 =	"rro:660F3832rM|rx/ow:",
+  pmovzxbw_2 =	"rro:660F3830rM|rx/oq:",
+  pmovzxdq_2 =	"rro:660F3835rM|rx/oq:",
+  pmovzxwd_2 =	"rro:660F3833rM|rx/oq:",
+  pmovzxwq_2 =	"rro:660F3834rM|rx/od:",
+  pmuldq_2 =	"rmo:660F3828rM",
+  pmulld_2 =	"rmo:660F3840rM",
+  ptest_2 =	"rmo:660F3817rM",
+  roundpd_3 =	"rmio:660F3A09rMU",
+  roundps_3 =	"rmio:660F3A08rMU",
+  roundsd_3 =	"rrio:660F3A0BrMU|rxi/oq:",
+  roundss_3 =	"rrio:660F3A0ArMU|rxi/od:",
+
+  -- SSE4.2 ops
+  crc32_2 =	"rmqd:F20F38F1rM|rm/dw:66F20F38F1rM|rm/db:F20F38F0rM|rm/qb:",
+  pcmpestri_3 =	"rmio:660F3A61rMU",
+  pcmpestrm_3 =	"rmio:660F3A60rMU",
+  pcmpgtq_2 =	"rmo:660F3837rM",
+  pcmpistri_3 =	"rmio:660F3A63rMU",
+  pcmpistrm_3 =	"rmio:660F3A62rMU",
+  popcnt_2 =	"rmqdw:F30FB8rM",
+
+  -- SSE4a
+  extrq_2 =	"rro:660F79rM",
+  extrq_3 =	"riio:660F780mUU",
+  insertq_2 =	"rro:F20F79rM",
+  insertq_4 =	"rriio:F20F78rMUU",
+  lzcnt_2 =	"rmqdw:F30FBDrM",
+  movntsd_2 =	"xr/qo:nF20F2BRm",
+  movntss_2 =	"xr/do:F30F2BRm",
+  -- popcnt is also in SSE4.2
+}
+
+------------------------------------------------------------------------------
+
+-- Arithmetic ops.
+for name,n in pairs{ add = 0, ["or"] = 1, adc = 2, sbb = 3,
+		     ["and"] = 4, sub = 5, xor = 6, cmp = 7 } do
+  local n8 = shl(n, 3)
+  map_op[name.."_2"] = format(
+    "mr:%02XRm|rm:%02XrM|mI1qdw:81%XmI|mS1qdw:83%XmS|Ri1qdwb:%02Xri|mi1qdwb:81%Xmi",
+    1+n8, 3+n8, n, n, 5+n8, n)
+end
+
+-- Shift ops.
+for name,n in pairs{ rol = 0, ror = 1, rcl = 2, rcr = 3,
+		     shl = 4, shr = 5,          sar = 7, sal = 4 } do
+  map_op[name.."_2"] = format("m1:D1%Xm|mC1qdwb:D3%Xm|mi:C1%XmU", n, n, n)
+end
+
+-- Conditional ops.
+for cc,n in pairs(map_cc) do
+  map_op["j"..cc.."_1"] = format("J.:n0F8%XJ", n) -- short: 7%X
+  map_op["set"..cc.."_1"] = format("mb:n0F9%X2m", n)
+  map_op["cmov"..cc.."_2"] = format("rmqdw:0F4%XrM", n) -- P6+
+end
+
+-- FP arithmetic ops.
+for name,n in pairs{ add = 0, mul = 1, com = 2, comp = 3,
+		     sub = 4, subr = 5, div = 6, divr = 7 } do
+  local nc = 0xc0 + shl(n, 3)
+  local nr = nc + (n < 4 and 0 or (n % 2 == 0 and 8 or -8))
+  local fn = "f"..name
+  map_op[fn.."_1"] = format("ff:D8%02Xr|xd:D8%Xm|xq:nDC%Xm", nc, n, n)
+  if n == 2 or n == 3 then
+    map_op[fn.."_2"] = format("Fff:D8%02XR|Fx2d:D8%XM|Fx2q:nDC%XM", nc, n, n)
+  else
+    map_op[fn.."_2"] = format("Fff:D8%02XR|fFf:DC%02Xr|Fx2d:D8%XM|Fx2q:nDC%XM", nc, nr, n, n)
+    map_op[fn.."p_1"] = format("ff:DE%02Xr", nr)
+    map_op[fn.."p_2"] = format("fFf:DE%02Xr", nr)
+  end
+  map_op["fi"..name.."_1"] = format("xd:DA%Xm|xw:nDE%Xm", n, n)
+end
+
+-- FP conditional moves.
+for cc,n in pairs{ b=0, e=1, be=2, u=3, nb=4, ne=5, nbe=6, nu=7 } do
+  local nc = 0xdac0 + shl(band(n, 3), 3) + shl(band(n, 4), 6)
+  map_op["fcmov"..cc.."_1"] = format("ff:%04Xr", nc) -- P6+
+  map_op["fcmov"..cc.."_2"] = format("Fff:%04XR", nc) -- P6+
+end
+
+-- SSE FP arithmetic ops.
+for name,n in pairs{ sqrt = 1, add = 8, mul = 9,
+		     sub = 12, min = 13, div = 14, max = 15 } do
+  map_op[name.."ps_2"] = format("rmo:0F5%XrM", n)
+  map_op[name.."ss_2"] = format("rro:F30F5%XrM|rx/od:", n)
+  map_op[name.."pd_2"] = format("rmo:660F5%XrM", n)
+  map_op[name.."sd_2"] = format("rro:F20F5%XrM|rx/oq:", n)
+end
+
+------------------------------------------------------------------------------
+
+-- Process pattern string.
+local function dopattern(pat, args, sz, op, needrex)
+  local digit, addin
+  local opcode = 0
+  local szov = sz
+  local narg = 1
+  local rex = 0
+
+  -- Limit number of section buffer positions used by a single dasm_put().
+  -- A single opcode needs a maximum of 5 positions.
+  if secpos+5 > maxsecpos then wflush() end
+
+  -- Process each character.
+  for c in gmatch(pat.."|", ".") do
+    if match(c, "%x") then	-- Hex digit.
+      digit = byte(c) - 48
+      if digit > 48 then digit = digit - 39
+      elseif digit > 16 then digit = digit - 7 end
+      opcode = opcode*16 + digit
+      addin = nil
+    elseif c == "n" then	-- Disable operand size mods for opcode.
+      szov = nil
+    elseif c == "X" then	-- Force REX.W.
+      rex = 8
+    elseif c == "r" then	-- Merge 1st operand regno. into opcode.
+      addin = args[1]; opcode = opcode + (addin.reg % 8)
+      if narg < 2 then narg = 2 end
+    elseif c == "R" then	-- Merge 2nd operand regno. into opcode.
+      addin = args[2]; opcode = opcode + (addin.reg % 8)
+      narg = 3
+    elseif c == "m" or c == "M" then	-- Encode ModRM/SIB.
+      local s
+      if addin then
+	s = addin.reg
+	opcode = opcode - band(s, 7)	-- Undo regno opcode merge.
+      else
+	s = band(opcode, 15)	-- Undo last digit.
+	opcode = shr(opcode, 4)
+      end
+      local nn = c == "m" and 1 or 2
+      local t = args[nn]
+      if narg <= nn then narg = nn + 1 end
+      if szov == "q" and rex == 0 then rex = rex + 8 end
+      if t.reg and t.reg > 7 then rex = rex + 1 end
+      if t.xreg and t.xreg > 7 then rex = rex + 2 end
+      if s > 7 then rex = rex + 4 end
+      if needrex then rex = rex + 16 end
+      wputop(szov, opcode, rex); opcode = nil
+      local imark = sub(pat, -1) -- Force a mark (ugly).
+      -- Put ModRM/SIB with regno/last digit as spare.
+      wputmrmsib(t, imark, s, addin and addin.vreg)
+      addin = nil
+    else
+      if opcode then -- Flush opcode.
+	if szov == "q" and rex == 0 then rex = rex + 8 end
+	if needrex then rex = rex + 16 end
+	if addin and addin.reg == -1 then
+	  wputop(szov, opcode - 7, rex)
+	  waction("VREG", addin.vreg); wputxb(0)
+	else
+	  if addin and addin.reg > 7 then rex = rex + 1 end
+	  wputop(szov, opcode, rex)
+	end
+	opcode = nil
+      end
+      if c == "|" then break end
+      if c == "o" then -- Offset (pure 32 bit displacement).
+	wputdarg(args[1].disp); if narg < 2 then narg = 2 end
+      elseif c == "O" then
+	wputdarg(args[2].disp); narg = 3
+      else
+	-- Anything else is an immediate operand.
+	local a = args[narg]
+	narg = narg + 1
+	local mode, imm = a.mode, a.imm
+	if mode == "iJ" and not match("iIJ", c) then
+	  werror("bad operand size for label")
+	end
+	if c == "S" then
+	  wputsbarg(imm)
+	elseif c == "U" then
+	  wputbarg(imm)
+	elseif c == "W" then
+	  wputwarg(imm)
+	elseif c == "i" or c == "I" then
+	  if mode == "iJ" then
+	    wputlabel("IMM_", imm, 1)
+	  elseif mode == "iI" and c == "I" then
+	    waction(sz == "w" and "IMM_WB" or "IMM_DB", imm)
+	  else
+	    wputszarg(sz, imm)
+	  end
+	elseif c == "J" then
+	  if mode == "iPJ" then
+	    waction("REL_A", imm) -- !x64 (secpos)
+	  else
+	    wputlabel("REL_", imm, 2)
+	  end
+	else
+	  werror("bad char `"..c.."' in pattern `"..pat.."' for `"..op.."'")
+	end
+      end
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Mapping of operand modes to short names. Suppress output with '#'.
+local map_modename = {
+  r = "reg", R = "eax", C = "cl", x = "mem", m = "mrm", i = "imm",
+  f = "stx", F = "st0", J = "lbl", ["1"] = "1",
+  I = "#", S = "#", O = "#",
+}
+
+-- Return a table/string showing all possible operand modes.
+local function templatehelp(template, nparams)
+  if nparams == 0 then return "" end
+  local t = {}
+  for tm in gmatch(template, "[^%|]+") do
+    local s = map_modename[sub(tm, 1, 1)]
+    s = s..gsub(sub(tm, 2, nparams), ".", function(c)
+      return ", "..map_modename[c]
+    end)
+    if not match(s, "#") then t[#t+1] = s end
+  end
+  return t
+end
+
+-- Match operand modes against mode match part of template.
+local function matchtm(tm, args)
+  for i=1,#args do
+    if not match(args[i].mode, sub(tm, i, i)) then return end
+  end
+  return true
+end
+
+-- Handle opcodes defined with template strings.
+map_op[".template__"] = function(params, template, nparams)
+  if not params then return templatehelp(template, nparams) end
+  local args = {}
+
+  -- Zero-operand opcodes have no match part.
+  if #params == 0 then
+    dopattern(template, args, "d", params.op, nil)
+    return
+  end
+
+  -- Determine common operand size (coerce undefined size) or flag as mixed.
+  local sz, szmix, needrex
+  for i,p in ipairs(params) do
+    args[i] = parseoperand(p)
+    local nsz = args[i].opsize
+    if nsz then
+      if sz and sz ~= nsz then szmix = true else sz = nsz end
+    end
+    local nrex = args[i].needrex
+    if nrex ~= nil then
+      if needrex == nil then
+	needrex = nrex
+      elseif needrex ~= nrex then
+	werror("bad mix of byte-addressable registers")
+      end
+    end
+  end
+
+  -- Try all match:pattern pairs (separated by '|').
+  local gotmatch, lastpat
+  for tm in gmatch(template, "[^%|]+") do
+    -- Split off size match (starts after mode match) and pattern string.
+    local szm, pat = match(tm, "^(.-):(.*)$", #args+1)
+    if pat == "" then pat = lastpat else lastpat = pat end
+    if matchtm(tm, args) then
+      local prefix = sub(szm, 1, 1)
+      if prefix == "/" then -- Match both operand sizes.
+	if args[1].opsize == sub(szm, 2, 2) and
+	   args[2].opsize == sub(szm, 3, 3) then
+	  dopattern(pat, args, sz, params.op, needrex) -- Process pattern.
+	  return
+	end
+      else -- Match common operand size.
+	local szp = sz
+	if szm == "" then szm = x64 and "qdwb" or "dwb" end -- Default sizes.
+	if prefix == "1" then szp = args[1].opsize; szmix = nil
+	elseif prefix == "2" then szp = args[2].opsize; szmix = nil end
+	if not szmix and (prefix == "." or match(szm, szp or "#")) then
+	  dopattern(pat, args, szp, params.op, needrex) -- Process pattern.
+	  return
+	end
+      end
+      gotmatch = true
+    end
+  end
+
+  local msg = "bad operand mode"
+  if gotmatch then
+    if szmix then
+      msg = "mixed operand size"
+    else
+      msg = sz and "bad operand size" or "missing operand size"
+    end
+  end
+
+  werror(msg.." in `"..opmodestr(params.op, args).."'")
+end
+
+------------------------------------------------------------------------------
+
+-- x64-specific opcode for 64 bit immediates and displacements.
+if x64 then
+  function map_op.mov64_2(params)
+    if not params then return { "reg, imm", "reg, [disp]", "[disp], reg" } end
+    if secpos+2 > maxsecpos then wflush() end
+    local opcode, op64, sz, rex, vreg
+    local op64 = match(params[1], "^%[%s*(.-)%s*%]$")
+    if op64 then
+      local a = parseoperand(params[2])
+      if a.mode ~= "rmR" then werror("bad operand mode") end
+      sz = a.opsize
+      rex = sz == "q" and 8 or 0
+      opcode = 0xa3
+    else
+      op64 = match(params[2], "^%[%s*(.-)%s*%]$")
+      local a = parseoperand(params[1])
+      if op64 then
+	if a.mode ~= "rmR" then werror("bad operand mode") end
+	sz = a.opsize
+	rex = sz == "q" and 8 or 0
+	opcode = 0xa1
+      else
+	if sub(a.mode, 1, 1) ~= "r" or a.opsize ~= "q" then
+	  werror("bad operand mode")
+	end
+	op64 = params[2]
+	if a.reg == -1 then
+	  vreg = a.vreg
+	  opcode = 0xb8
+	else
+	  opcode = 0xb8 + band(a.reg, 7)
+	end
+	rex = a.reg > 7 and 9 or 8
+      end
+    end
+    wputop(sz, opcode, rex)
+    if vreg then waction("VREG", vreg); wputxb(0) end
+    waction("IMM_D", format("(unsigned int)(%s)", op64))
+    waction("IMM_D", format("(unsigned int)((%s)>>32)", op64))
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcodes for data storage.
+local function op_data(params)
+  if not params then return "imm..." end
+  local sz = sub(params.op, 2, 2)
+  if sz == "a" then sz = addrsize end
+  for _,p in ipairs(params) do
+    local a = parseoperand(p)
+    if sub(a.mode, 1, 1) ~= "i" or (a.opsize and a.opsize ~= sz) then
+      werror("bad mode or size in `"..p.."'")
+    end
+    if a.mode == "iJ" then
+      wputlabel("IMM_", a.imm, 1)
+    else
+      wputszarg(sz, a.imm)
+    end
+    if secpos+2 > maxsecpos then wflush() end
+  end
+end
+
+map_op[".byte_*"] = op_data
+map_op[".sbyte_*"] = op_data
+map_op[".word_*"] = op_data
+map_op[".dword_*"] = op_data
+map_op[".aword_*"] = op_data
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode to mark the position where the action list is to be emitted.
+map_op[".actionlist_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeactions(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the global enum is to be emitted.
+map_op[".globals_1"] = function(params)
+  if not params then return "prefix" end
+  local prefix = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobals(out, prefix) end)
+end
+
+-- Pseudo-opcode to mark the position where the global names are to be emitted.
+map_op[".globalnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeglobalnames(out, name) end)
+end
+
+-- Pseudo-opcode to mark the position where the extern names are to be emitted.
+map_op[".externnames_1"] = function(params)
+  if not params then return "cvar" end
+  local name = params[1] -- No syntax check. You get to keep the pieces.
+  wline(function(out) writeexternnames(out, name) end)
+end
+
+------------------------------------------------------------------------------
+
+-- Label pseudo-opcode (converted from trailing colon form).
+map_op[".label_2"] = function(params)
+  if not params then return "[1-9] | ->global | =>pcexpr  [, addr]" end
+  if secpos+2 > maxsecpos then wflush() end
+  local a = parseoperand(params[1])
+  local mode, imm = a.mode, a.imm
+  if type(imm) == "number" and (mode == "iJ" or (imm >= 1 and imm <= 9)) then
+    -- Local label (1: ... 9:) or global label (->global:).
+    waction("LABEL_LG", nil, 1)
+    wputxb(imm)
+  elseif mode == "iJ" then
+    -- PC label (=>pcexpr:).
+    waction("LABEL_PC", imm)
+  else
+    werror("bad label definition")
+  end
+  -- SETLABEL must immediately follow LABEL_LG/LABEL_PC.
+  local addr = params[2]
+  if addr then
+    local a = parseoperand(addr)
+    if a.mode == "iPJ" then
+      waction("SETLABEL", a.imm)
+    else
+      werror("bad label assignment")
+    end
+  end
+end
+map_op[".label_1"] = map_op[".label_2"]
+
+------------------------------------------------------------------------------
+
+-- Alignment pseudo-opcode.
+map_op[".align_1"] = function(params)
+  if not params then return "numpow2" end
+  if secpos+1 > maxsecpos then wflush() end
+  local align = tonumber(params[1]) or map_opsizenum[map_opsize[params[1]]]
+  if align then
+    local x = align
+    -- Must be a power of 2 in the range (2 ... 256).
+    for i=1,8 do
+      x = x / 2
+      if x == 1 then
+	waction("ALIGN", nil, 1)
+	wputxb(align-1) -- Action byte is 2**n-1.
+	return
+      end
+    end
+  end
+  werror("bad alignment")
+end
+
+-- Spacing pseudo-opcode.
+map_op[".space_2"] = function(params)
+  if not params then return "num [, filler]" end
+  if secpos+1 > maxsecpos then wflush() end
+  waction("SPACE", params[1])
+  local fill = params[2]
+  if fill then
+    fill = tonumber(fill)
+    if not fill or fill < 0 or fill > 255 then werror("bad filler") end
+  end
+  wputxb(fill or 0)
+end
+map_op[".space_1"] = map_op[".space_2"]
+
+------------------------------------------------------------------------------
+
+-- Pseudo-opcode for (primitive) type definitions (map to C types).
+map_op[".type_3"] = function(params, nparams)
+  if not params then
+    return nparams == 2 and "name, ctype" or "name, ctype, reg"
+  end
+  local name, ctype, reg = params[1], params[2], params[3]
+  if not match(name, "^[%a_][%w_]*$") then
+    werror("bad type name `"..name.."'")
+  end
+  local tp = map_type[name]
+  if tp then
+    werror("duplicate type `"..name.."'")
+  end
+  if reg and not map_reg_valid_base[reg] then
+    werror("bad base register `"..(map_reg_rev[reg] or reg).."'")
+  end
+  -- Add #type to defines. A bit unclean to put it in map_archdef.
+  map_archdef["#"..name] = "sizeof("..ctype..")"
+  -- Add new type and emit shortcut define.
+  local num = ctypenum + 1
+  map_type[name] = {
+    ctype = ctype,
+    ctypefmt = format("Dt%X(%%s)", num),
+    reg = reg,
+  }
+  wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
+  ctypenum = num
+end
+map_op[".type_2"] = map_op[".type_3"]
+
+-- Dump type definitions.
+local function dumptypes(out, lvl)
+  local t = {}
+  for name in pairs(map_type) do t[#t+1] = name end
+  sort(t)
+  out:write("Type definitions:\n")
+  for _,name in ipairs(t) do
+    local tp = map_type[name]
+    local reg = tp.reg and map_reg_rev[tp.reg] or ""
+    out:write(format("  %-20s %-20s %s\n", name, tp.ctype, reg))
+  end
+  out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Set the current section.
+function _M.section(num)
+  waction("SECTION")
+  wputxb(num)
+  wflush(true) -- SECTION is a terminal action.
+end
+
+------------------------------------------------------------------------------
+
+-- Dump architecture description.
+function _M.dumparch(out)
+  out:write(format("DynASM %s version %s, released %s\n\n",
+    _info.arch, _info.version, _info.release))
+  dumpregs(out)
+  dumpactions(out)
+end
+
+-- Dump all user defined elements.
+function _M.dumpdef(out, lvl)
+  dumptypes(out, lvl)
+  dumpglobals(out, lvl)
+  dumpexterns(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Pass callbacks from/to the DynASM core.
+function _M.passcb(wl, we, wf, ww)
+  wline, werror, wfatal, wwarn = wl, we, wf, ww
+  return wflush
+end
+
+-- Setup the arch-specific module.
+function _M.setup(arch, opt)
+  g_arch, g_opt = arch, opt
+end
+
+-- Merge the core maps and the arch-specific maps.
+function _M.mergemaps(map_coreop, map_def)
+  setmetatable(map_op, { __index = map_coreop })
+  setmetatable(map_def, { __index = map_archdef })
+  return map_op, map_def
+end
+
+return _M
+
+------------------------------------------------------------------------------
+
diff --git a/lib/luajit/dynasm/dynasm.lua b/lib/luajit/dynasm/dynasm.lua
new file mode 100644
index 00000000..0ea8697c
--- /dev/null
+++ b/lib/luajit/dynasm/dynasm.lua
@@ -0,0 +1,1094 @@
+------------------------------------------------------------------------------
+-- DynASM. A dynamic assembler for code generation engines.
+-- Originally designed and implemented for LuaJIT.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- See below for full copyright notice.
+------------------------------------------------------------------------------
+
+-- Application information.
+local _info = {
+  name =	"DynASM",
+  description =	"A dynamic assembler for code generation engines",
+  version =	"1.3.0",
+  vernum =	 10300,
+  release =	"2011-05-05",
+  author =	"Mike Pall",
+  url =		"http://luajit.org/dynasm.html",
+  license =	"MIT",
+  copyright =	[[
+Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+]],
+}
+
+-- Cache library functions.
+local type, pairs, ipairs = type, pairs, ipairs
+local pcall, error, assert = pcall, error, assert
+local _s = string
+local sub, match, gmatch, gsub = _s.sub, _s.match, _s.gmatch, _s.gsub
+local format, rep, upper = _s.format, _s.rep, _s.upper
+local _t = table
+local insert, remove, concat, sort = _t.insert, _t.remove, _t.concat, _t.sort
+local exit = os.exit
+local io = io
+local stdin, stdout, stderr = io.stdin, io.stdout, io.stderr
+
+------------------------------------------------------------------------------
+
+-- Program options.
+local g_opt = {}
+
+-- Global state for current file.
+local g_fname, g_curline, g_indent, g_lineno, g_synclineno, g_arch
+local g_errcount = 0
+
+-- Write buffer for output file.
+local g_wbuffer, g_capbuffer
+
+------------------------------------------------------------------------------
+
+-- Write an output line (or callback function) to the buffer.
+local function wline(line, needindent)
+  local buf = g_capbuffer or g_wbuffer
+  buf[#buf+1] = needindent and g_indent..line or line
+  g_synclineno = g_synclineno + 1
+end
+
+-- Write assembler line as a comment, if requestd.
+local function wcomment(aline)
+  if g_opt.comment then
+    wline(g_opt.comment..aline..g_opt.endcomment, true)
+  end
+end
+
+-- Resync CPP line numbers.
+local function wsync()
+  if g_synclineno ~= g_lineno and g_opt.cpp then
+    wline("#line "..g_lineno..' "'..g_fname..'"')
+    g_synclineno = g_lineno
+  end
+end
+
+-- Dummy action flush function. Replaced with arch-specific function later.
+local function wflush(term)
+end
+
+-- Dump all buffered output lines.
+local function wdumplines(out, buf)
+  for _,line in ipairs(buf) do
+    if type(line) == "string" then
+      assert(out:write(line, "\n"))
+    else
+      -- Special callback to dynamically insert lines after end of processing.
+      line(out)
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Emit an error. Processing continues with next statement.
+local function werror(msg)
+  error(format("%s:%s: error: %s:\n%s", g_fname, g_lineno, msg, g_curline), 0)
+end
+
+-- Emit a fatal error. Processing stops.
+local function wfatal(msg)
+  g_errcount = "fatal"
+  werror(msg)
+end
+
+-- Print a warning. Processing continues.
+local function wwarn(msg)
+  stderr:write(format("%s:%s: warning: %s:\n%s\n",
+    g_fname, g_lineno, msg, g_curline))
+end
+
+-- Print caught error message. But suppress excessive errors.
+local function wprinterr(...)
+  if type(g_errcount) == "number" then
+    -- Regular error.
+    g_errcount = g_errcount + 1
+    if g_errcount < 21 then -- Seems to be a reasonable limit.
+      stderr:write(...)
+    elseif g_errcount == 21 then
+      stderr:write(g_fname,
+	":*: warning: too many errors (suppressed further messages).\n")
+    end
+  else
+    -- Fatal error.
+    stderr:write(...)
+    return true -- Stop processing.
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Map holding all option handlers.
+local opt_map = {}
+local opt_current
+
+-- Print error and exit with error status.
+local function opterror(...)
+  stderr:write("dynasm.lua: ERROR: ", ...)
+  stderr:write("\n")
+  exit(1)
+end
+
+-- Get option parameter.
+local function optparam(args)
+  local argn = args.argn
+  local p = args[argn]
+  if not p then
+    opterror("missing parameter for option `", opt_current, "'.")
+  end
+  args.argn = argn + 1
+  return p
+end
+
+------------------------------------------------------------------------------
+
+-- Core pseudo-opcodes.
+local map_coreop = {}
+-- Dummy opcode map. Replaced by arch-specific map.
+local map_op = {}
+
+-- Forward declarations.
+local dostmt
+local readfile
+
+------------------------------------------------------------------------------
+
+-- Map for defines (initially empty, chains to arch-specific map).
+local map_def = {}
+
+-- Pseudo-opcode to define a substitution.
+map_coreop[".define_2"] = function(params, nparams)
+  if not params then return nparams == 1 and "name" or "name, subst" end
+  local name, def = params[1], params[2] or "1"
+  if not match(name, "^[%a_][%w_]*$") then werror("bad or duplicate define") end
+  map_def[name] = def
+end
+map_coreop[".define_1"] = map_coreop[".define_2"]
+
+-- Define a substitution on the command line.
+function opt_map.D(args)
+  local namesubst = optparam(args)
+  local name, subst = match(namesubst, "^([%a_][%w_]*)=(.*)$")
+  if name then
+    map_def[name] = subst
+  elseif match(namesubst, "^[%a_][%w_]*$") then
+    map_def[namesubst] = "1"
+  else
+    opterror("bad define")
+  end
+end
+
+-- Undefine a substitution on the command line.
+function opt_map.U(args)
+  local name = optparam(args)
+  if match(name, "^[%a_][%w_]*$") then
+    map_def[name] = nil
+  else
+    opterror("bad define")
+  end
+end
+
+-- Helper for definesubst.
+local gotsubst
+
+local function definesubst_one(word)
+  local subst = map_def[word]
+  if subst then gotsubst = word; return subst else return word end
+end
+
+-- Iteratively substitute defines.
+local function definesubst(stmt)
+  -- Limit number of iterations.
+  for i=1,100 do
+    gotsubst = false
+    stmt = gsub(stmt, "#?[%w_]+", definesubst_one)
+    if not gotsubst then break end
+  end
+  if gotsubst then wfatal("recursive define involving `"..gotsubst.."'") end
+  return stmt
+end
+
+-- Dump all defines.
+local function dumpdefines(out, lvl)
+  local t = {}
+  for name in pairs(map_def) do
+    t[#t+1] = name
+  end
+  sort(t)
+  out:write("Defines:\n")
+  for _,name in ipairs(t) do
+    local subst = map_def[name]
+    if g_arch then subst = g_arch.revdef(subst) end
+    out:write(format("  %-20s %s\n", name, subst))
+  end
+  out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Support variables for conditional assembly.
+local condlevel = 0
+local condstack = {}
+
+-- Evaluate condition with a Lua expression. Substitutions already performed.
+local function cond_eval(cond)
+  local func, err
+  if setfenv then
+    func, err = loadstring("return "..cond, "=expr")
+  else
+    -- No globals. All unknown identifiers evaluate to nil.
+    func, err = load("return "..cond, "=expr", "t", {})
+  end
+  if func then
+    if setfenv then
+      setfenv(func, {}) -- No globals. All unknown identifiers evaluate to nil.
+    end
+    local ok, res = pcall(func)
+    if ok then
+      if res == 0 then return false end -- Oh well.
+      return not not res
+    end
+    err = res
+  end
+  wfatal("bad condition: "..err)
+end
+
+-- Skip statements until next conditional pseudo-opcode at the same level.
+local function stmtskip()
+  local dostmt_save = dostmt
+  local lvl = 0
+  dostmt = function(stmt)
+    local op = match(stmt, "^%s*(%S+)")
+    if op == ".if" then
+      lvl = lvl + 1
+    elseif lvl ~= 0 then
+      if op == ".endif" then lvl = lvl - 1 end
+    elseif op == ".elif" or op == ".else" or op == ".endif" then
+      dostmt = dostmt_save
+      dostmt(stmt)
+    end
+  end
+end
+
+-- Pseudo-opcodes for conditional assembly.
+map_coreop[".if_1"] = function(params)
+  if not params then return "condition" end
+  local lvl = condlevel + 1
+  local res = cond_eval(params[1])
+  condlevel = lvl
+  condstack[lvl] = res
+  if not res then stmtskip() end
+end
+
+map_coreop[".elif_1"] = function(params)
+  if not params then return "condition" end
+  if condlevel == 0 then wfatal(".elif without .if") end
+  local lvl = condlevel
+  local res = condstack[lvl]
+  if res then
+    if res == "else" then wfatal(".elif after .else") end
+  else
+    res = cond_eval(params[1])
+    if res then
+      condstack[lvl] = res
+      return
+    end
+  end
+  stmtskip()
+end
+
+map_coreop[".else_0"] = function(params)
+  if condlevel == 0 then wfatal(".else without .if") end
+  local lvl = condlevel
+  local res = condstack[lvl]
+  condstack[lvl] = "else"
+  if res then
+    if res == "else" then wfatal(".else after .else") end
+    stmtskip()
+  end
+end
+
+map_coreop[".endif_0"] = function(params)
+  local lvl = condlevel
+  if lvl == 0 then wfatal(".endif without .if") end
+  condlevel = lvl - 1
+end
+
+-- Check for unfinished conditionals.
+local function checkconds()
+  if g_errcount ~= "fatal" and condlevel ~= 0 then
+    wprinterr(g_fname, ":*: error: unbalanced conditional\n")
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Search for a file in the given path and open it for reading.
+local function pathopen(path, name)
+  local dirsep = package and match(package.path, "\\") and "\\" or "/"
+  for _,p in ipairs(path) do
+    local fullname = p == "" and name or p..dirsep..name
+    local fin = io.open(fullname, "r")
+    if fin then
+      g_fname = fullname
+      return fin
+    end
+  end
+end
+
+-- Include a file.
+map_coreop[".include_1"] = function(params)
+  if not params then return "filename" end
+  local name = params[1]
+  -- Save state. Ugly, I know. but upvalues are fast.
+  local gf, gl, gcl, gi = g_fname, g_lineno, g_curline, g_indent
+  -- Read the included file.
+  local fatal = readfile(pathopen(g_opt.include, name) or
+			 wfatal("include file `"..name.."' not found"))
+  -- Restore state.
+  g_synclineno = -1
+  g_fname, g_lineno, g_curline, g_indent = gf, gl, gcl, gi
+  if fatal then wfatal("in include file") end
+end
+
+-- Make .include and conditionals initially available, too.
+map_op[".include_1"] = map_coreop[".include_1"]
+map_op[".if_1"] = map_coreop[".if_1"]
+map_op[".elif_1"] = map_coreop[".elif_1"]
+map_op[".else_0"] = map_coreop[".else_0"]
+map_op[".endif_0"] = map_coreop[".endif_0"]
+
+------------------------------------------------------------------------------
+
+-- Support variables for macros.
+local mac_capture, mac_lineno, mac_name
+local mac_active = {}
+local mac_list = {}
+
+-- Pseudo-opcode to define a macro.
+map_coreop[".macro_*"] = function(mparams)
+  if not mparams then return "name [, params...]" end
+  -- Split off and validate macro name.
+  local name = remove(mparams, 1)
+  if not name then werror("missing macro name") end
+  if not (match(name, "^[%a_][%w_%.]*$") or match(name, "^%.[%w_%.]*$")) then
+    wfatal("bad macro name `"..name.."'")
+  end
+  -- Validate macro parameter names.
+  local mdup = {}
+  for _,mp in ipairs(mparams) do
+    if not match(mp, "^[%a_][%w_]*$") then
+      wfatal("bad macro parameter name `"..mp.."'")
+    end
+    if mdup[mp] then wfatal("duplicate macro parameter name `"..mp.."'") end
+    mdup[mp] = true
+  end
+  -- Check for duplicate or recursive macro definitions.
+  local opname = name.."_"..#mparams
+  if map_op[opname] or map_op[name.."_*"] then
+    wfatal("duplicate macro `"..name.."' ("..#mparams.." parameters)")
+  end
+  if mac_capture then wfatal("recursive macro definition") end
+
+  -- Enable statement capture.
+  local lines = {}
+  mac_lineno = g_lineno
+  mac_name = name
+  mac_capture = function(stmt) -- Statement capture function.
+    -- Stop macro definition with .endmacro pseudo-opcode.
+    if not match(stmt, "^%s*.endmacro%s*$") then
+      lines[#lines+1] = stmt
+      return
+    end
+    mac_capture = nil
+    mac_lineno = nil
+    mac_name = nil
+    mac_list[#mac_list+1] = opname
+    -- Add macro-op definition.
+    map_op[opname] = function(params)
+      if not params then return mparams, lines end
+      -- Protect against recursive macro invocation.
+      if mac_active[opname] then wfatal("recursive macro invocation") end
+      mac_active[opname] = true
+      -- Setup substitution map.
+      local subst = {}
+      for i,mp in ipairs(mparams) do subst[mp] = params[i] end
+      local mcom
+      if g_opt.maccomment and g_opt.comment then
+	mcom = " MACRO "..name.." ("..#mparams..")"
+	wcomment("{"..mcom)
+      end
+      -- Loop through all captured statements
+      for _,stmt in ipairs(lines) do
+	-- Substitute macro parameters.
+	local st = gsub(stmt, "[%w_]+", subst)
+	st = definesubst(st)
+	st = gsub(st, "%s*%.%.%s*", "") -- Token paste a..b.
+	if mcom and sub(st, 1, 1) ~= "|" then wcomment(st) end
+	-- Emit statement. Use a protected call for better diagnostics.
+	local ok, err = pcall(dostmt, st)
+	if not ok then
+	  -- Add the captured statement to the error.
+	  wprinterr(err, "\n", g_indent, "|  ", stmt,
+		    "\t[MACRO ", name, " (", #mparams, ")]\n")
+	end
+      end
+      if mcom then wcomment("}"..mcom) end
+      mac_active[opname] = nil
+    end
+  end
+end
+
+-- An .endmacro pseudo-opcode outside of a macro definition is an error.
+map_coreop[".endmacro_0"] = function(params)
+  wfatal(".endmacro without .macro")
+end
+
+-- Dump all macros and their contents (with -PP only).
+local function dumpmacros(out, lvl)
+  sort(mac_list)
+  out:write("Macros:\n")
+  for _,opname in ipairs(mac_list) do
+    local name = sub(opname, 1, -3)
+    local params, lines = map_op[opname]()
+    out:write(format("  %-20s %s\n", name, concat(params, ", ")))
+    if lvl > 1 then
+      for _,line in ipairs(lines) do
+	out:write("  |", line, "\n")
+      end
+      out:write("\n")
+    end
+  end
+  out:write("\n")
+end
+
+-- Check for unfinished macro definitions.
+local function checkmacros()
+  if mac_capture then
+    wprinterr(g_fname, ":", mac_lineno,
+	      ": error: unfinished .macro `", mac_name ,"'\n")
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Support variables for captures.
+local cap_lineno, cap_name
+local cap_buffers = {}
+local cap_used = {}
+
+-- Start a capture.
+map_coreop[".capture_1"] = function(params)
+  if not params then return "name" end
+  wflush()
+  local name = params[1]
+  if not match(name, "^[%a_][%w_]*$") then
+    wfatal("bad capture name `"..name.."'")
+  end
+  if cap_name then
+    wfatal("already capturing to `"..cap_name.."' since line "..cap_lineno)
+  end
+  cap_name = name
+  cap_lineno = g_lineno
+  -- Create or continue a capture buffer and start the output line capture.
+  local buf = cap_buffers[name]
+  if not buf then buf = {}; cap_buffers[name] = buf end
+  g_capbuffer = buf
+  g_synclineno = 0
+end
+
+-- Stop a capture.
+map_coreop[".endcapture_0"] = function(params)
+  wflush()
+  if not cap_name then wfatal(".endcapture without a valid .capture") end
+  cap_name = nil
+  cap_lineno = nil
+  g_capbuffer = nil
+  g_synclineno = 0
+end
+
+-- Dump a capture buffer.
+map_coreop[".dumpcapture_1"] = function(params)
+  if not params then return "name" end
+  wflush()
+  local name = params[1]
+  if not match(name, "^[%a_][%w_]*$") then
+    wfatal("bad capture name `"..name.."'")
+  end
+  cap_used[name] = true
+  wline(function(out)
+    local buf = cap_buffers[name]
+    if buf then wdumplines(out, buf) end
+  end)
+  g_synclineno = 0
+end
+
+-- Dump all captures and their buffers (with -PP only).
+local function dumpcaptures(out, lvl)
+  out:write("Captures:\n")
+  for name,buf in pairs(cap_buffers) do
+    out:write(format("  %-20s %4s)\n", name, "("..#buf))
+    if lvl > 1 then
+      local bar = rep("=", 76)
+      out:write("  ", bar, "\n")
+      for _,line in ipairs(buf) do
+	out:write("  ", line, "\n")
+      end
+      out:write("  ", bar, "\n\n")
+    end
+  end
+  out:write("\n")
+end
+
+-- Check for unfinished or unused captures.
+local function checkcaptures()
+  if cap_name then
+    wprinterr(g_fname, ":", cap_lineno,
+	      ": error: unfinished .capture `", cap_name,"'\n")
+    return
+  end
+  for name in pairs(cap_buffers) do
+    if not cap_used[name] then
+      wprinterr(g_fname, ":*: error: missing .dumpcapture ", name ,"\n")
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Sections names.
+local map_sections = {}
+
+-- Pseudo-opcode to define code sections.
+-- TODO: Data sections, BSS sections. Needs extra C code and API.
+map_coreop[".section_*"] = function(params)
+  if not params then return "name..." end
+  if #map_sections > 0 then werror("duplicate section definition") end
+  wflush()
+  for sn,name in ipairs(params) do
+    local opname = "."..name.."_0"
+    if not match(name, "^[%a][%w_]*$") or
+       map_op[opname] or map_op["."..name.."_*"] then
+      werror("bad section name `"..name.."'")
+    end
+    map_sections[#map_sections+1] = name
+    wline(format("#define DASM_SECTION_%s\t%d", upper(name), sn-1))
+    map_op[opname] = function(params) g_arch.section(sn-1) end
+  end
+  wline(format("#define DASM_MAXSECTION\t\t%d", #map_sections))
+end
+
+-- Dump all sections.
+local function dumpsections(out, lvl)
+  out:write("Sections:\n")
+  for _,name in ipairs(map_sections) do
+    out:write(format("  %s\n", name))
+  end
+  out:write("\n")
+end
+
+------------------------------------------------------------------------------
+
+-- Replacement for customized Lua, which lacks the package library.
+local prefix = ""
+if not require then
+  function require(name)
+    local fp = assert(io.open(prefix..name..".lua"))
+    local s = fp:read("*a")
+    assert(fp:close())
+    return assert(loadstring(s, "@"..name..".lua"))()
+  end
+end
+
+-- Load architecture-specific module.
+local function loadarch(arch)
+  if not match(arch, "^[%w_]+$") then return "bad arch name" end
+  local ok, m_arch = pcall(require, "dasm_"..arch)
+  if not ok then return "cannot load module: "..m_arch end
+  g_arch = m_arch
+  wflush = m_arch.passcb(wline, werror, wfatal, wwarn)
+  m_arch.setup(arch, g_opt)
+  map_op, map_def = m_arch.mergemaps(map_coreop, map_def)
+end
+
+-- Dump architecture description.
+function opt_map.dumparch(args)
+  local name = optparam(args)
+  if not g_arch then
+    local err = loadarch(name)
+    if err then opterror(err) end
+  end
+
+  local t = {}
+  for name in pairs(map_coreop) do t[#t+1] = name end
+  for name in pairs(map_op) do t[#t+1] = name end
+  sort(t)
+
+  local out = stdout
+  local _arch = g_arch._info
+  out:write(format("%s version %s, released %s, %s\n",
+    _info.name, _info.version, _info.release, _info.url))
+  g_arch.dumparch(out)
+
+  local pseudo = true
+  out:write("Pseudo-Opcodes:\n")
+  for _,sname in ipairs(t) do
+    local name, nparam = match(sname, "^(.+)_([0-9%*])$")
+    if name then
+      if pseudo and sub(name, 1, 1) ~= "." then
+	out:write("\nOpcodes:\n")
+	pseudo = false
+      end
+      local f = map_op[sname]
+      local s
+      if nparam ~= "*" then nparam = nparam + 0 end
+      if nparam == 0 then
+	s = ""
+      elseif type(f) == "string" then
+	s = map_op[".template__"](nil, f, nparam)
+      else
+	s = f(nil, nparam)
+      end
+      if type(s) == "table" then
+	for _,s2 in ipairs(s) do
+	  out:write(format("  %-12s %s\n", name, s2))
+	end
+      else
+	out:write(format("  %-12s %s\n", name, s))
+      end
+    end
+  end
+  out:write("\n")
+  exit(0)
+end
+
+-- Pseudo-opcode to set the architecture.
+-- Only initially available (map_op is replaced when called).
+map_op[".arch_1"] = function(params)
+  if not params then return "name" end
+  local err = loadarch(params[1])
+  if err then wfatal(err) end
+  wline(format("#if DASM_VERSION != %d", _info.vernum))
+  wline('#error "Version mismatch between DynASM and included encoding engine"')
+  wline("#endif")
+end
+
+-- Dummy .arch pseudo-opcode to improve the error report.
+map_coreop[".arch_1"] = function(params)
+  if not params then return "name" end
+  wfatal("duplicate .arch statement")
+end
+
+------------------------------------------------------------------------------
+
+-- Dummy pseudo-opcode. Don't confuse '.nop' with 'nop'.
+map_coreop[".nop_*"] = function(params)
+  if not params then return "[ignored...]" end
+end
+
+-- Pseudo-opcodes to raise errors.
+map_coreop[".error_1"] = function(params)
+  if not params then return "message" end
+  werror(params[1])
+end
+
+map_coreop[".fatal_1"] = function(params)
+  if not params then return "message" end
+  wfatal(params[1])
+end
+
+-- Dump all user defined elements.
+local function dumpdef(out)
+  local lvl = g_opt.dumpdef
+  if lvl == 0 then return end
+  dumpsections(out, lvl)
+  dumpdefines(out, lvl)
+  if g_arch then g_arch.dumpdef(out, lvl) end
+  dumpmacros(out, lvl)
+  dumpcaptures(out, lvl)
+end
+
+------------------------------------------------------------------------------
+
+-- Helper for splitstmt.
+local splitlvl
+
+local function splitstmt_one(c)
+  if c == "(" then
+    splitlvl = ")"..splitlvl
+  elseif c == "[" then
+    splitlvl = "]"..splitlvl
+  elseif c == "{" then
+    splitlvl = "}"..splitlvl
+  elseif c == ")" or c == "]" or c == "}" then
+    if sub(splitlvl, 1, 1) ~= c then werror("unbalanced (), [] or {}") end
+    splitlvl = sub(splitlvl, 2)
+  elseif splitlvl == "" then
+    return " \0 "
+  end
+  return c
+end
+
+-- Split statement into (pseudo-)opcode and params.
+local function splitstmt(stmt)
+  -- Convert label with trailing-colon into .label statement.
+  local label = match(stmt, "^%s*(.+):%s*$")
+  if label then return ".label", {label} end
+
+  -- Split at commas and equal signs, but obey parentheses and brackets.
+  splitlvl = ""
+  stmt = gsub(stmt, "[,%(%)%[%]{}]", splitstmt_one)
+  if splitlvl ~= "" then werror("unbalanced () or []") end
+
+  -- Split off opcode.
+  local op, other = match(stmt, "^%s*([^%s%z]+)%s*(.*)$")
+  if not op then werror("bad statement syntax") end
+
+  -- Split parameters.
+  local params = {}
+  for p in gmatch(other, "%s*(%Z+)%z?") do
+    params[#params+1] = gsub(p, "%s+$", "")
+  end
+  if #params > 16 then werror("too many parameters") end
+
+  params.op = op
+  return op, params
+end
+
+-- Process a single statement.
+dostmt = function(stmt)
+  -- Ignore empty statements.
+  if match(stmt, "^%s*$") then return end
+
+  -- Capture macro defs before substitution.
+  if mac_capture then return mac_capture(stmt) end
+  stmt = definesubst(stmt)
+
+  -- Emit C code without parsing the line.
+  if sub(stmt, 1, 1) == "|" then
+    local tail = sub(stmt, 2)
+    wflush()
+    if sub(tail, 1, 2) == "//" then wcomment(tail) else wline(tail, true) end
+    return
+  end
+
+  -- Split into (pseudo-)opcode and params.
+  local op, params = splitstmt(stmt)
+
+  -- Get opcode handler (matching # of parameters or generic handler).
+  local f = map_op[op.."_"..#params] or map_op[op.."_*"]
+  if not f then
+    if not g_arch then wfatal("first statement must be .arch") end
+    -- Improve error report.
+    for i=0,9 do
+      if map_op[op.."_"..i] then
+	werror("wrong number of parameters for `"..op.."'")
+      end
+    end
+    werror("unknown statement `"..op.."'")
+  end
+
+  -- Call opcode handler or special handler for template strings.
+  if type(f) == "string" then
+    map_op[".template__"](params, f)
+  else
+    f(params)
+  end
+end
+
+-- Process a single line.
+local function doline(line)
+  if g_opt.flushline then wflush() end
+
+  -- Assembler line?
+  local indent, aline = match(line, "^(%s*)%|(.*)$")
+  if not aline then
+    -- No, plain C code line, need to flush first.
+    wflush()
+    wsync()
+    wline(line, false)
+    return
+  end
+
+  g_indent = indent -- Remember current line indentation.
+
+  -- Emit C code (even from macros). Avoids echo and line parsing.
+  if sub(aline, 1, 1) == "|" then
+    if not mac_capture then
+      wsync()
+    elseif g_opt.comment then
+      wsync()
+      wcomment(aline)
+    end
+    dostmt(aline)
+    return
+  end
+
+  -- Echo assembler line as a comment.
+  if g_opt.comment then
+    wsync()
+    wcomment(aline)
+  end
+
+  -- Strip assembler comments.
+  aline = gsub(aline, "//.*$", "")
+
+  -- Split line into statements at semicolons.
+  if match(aline, ";") then
+    for stmt in gmatch(aline, "[^;]+") do dostmt(stmt) end
+  else
+    dostmt(aline)
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Write DynASM header.
+local function dasmhead(out)
+  out:write(format([[
+/*
+** This file has been pre-processed with DynASM.
+** %s
+** DynASM version %s, DynASM %s version %s
+** DO NOT EDIT! The original file is in "%s".
+*/
+
+]], _info.url,
+    _info.version, g_arch._info.arch, g_arch._info.version,
+    g_fname))
+end
+
+-- Read input file.
+readfile = function(fin)
+  g_indent = ""
+  g_lineno = 0
+  g_synclineno = -1
+
+  -- Process all lines.
+  for line in fin:lines() do
+    g_lineno = g_lineno + 1
+    g_curline = line
+    local ok, err = pcall(doline, line)
+    if not ok and wprinterr(err, "\n") then return true end
+  end
+  wflush()
+
+  -- Close input file.
+  assert(fin == stdin or fin:close())
+end
+
+-- Write output file.
+local function writefile(outfile)
+  local fout
+
+  -- Open output file.
+  if outfile == nil or outfile == "-" then
+    fout = stdout
+  else
+    fout = assert(io.open(outfile, "w"))
+  end
+
+  -- Write all buffered lines
+  wdumplines(fout, g_wbuffer)
+
+  -- Close output file.
+  assert(fout == stdout or fout:close())
+
+  -- Optionally dump definitions.
+  dumpdef(fout == stdout and stderr or stdout)
+end
+
+-- Translate an input file to an output file.
+local function translate(infile, outfile)
+  g_wbuffer = {}
+  g_indent = ""
+  g_lineno = 0
+  g_synclineno = -1
+
+  -- Put header.
+  wline(dasmhead)
+
+  -- Read input file.
+  local fin
+  if infile == "-" then
+    g_fname = "(stdin)"
+    fin = stdin
+  else
+    g_fname = infile
+    fin = assert(io.open(infile, "r"))
+  end
+  readfile(fin)
+
+  -- Check for errors.
+  if not g_arch then
+    wprinterr(g_fname, ":*: error: missing .arch directive\n")
+  end
+  checkconds()
+  checkmacros()
+  checkcaptures()
+
+  if g_errcount ~= 0 then
+    stderr:write(g_fname, ":*: info: ", g_errcount, " error",
+      (type(g_errcount) == "number" and g_errcount > 1) and "s" or "",
+      " in input file -- no output file generated.\n")
+    dumpdef(stderr)
+    exit(1)
+  end
+
+  -- Write output file.
+  writefile(outfile)
+end
+
+------------------------------------------------------------------------------
+
+-- Print help text.
+function opt_map.help()
+  stdout:write("DynASM -- ", _info.description, ".\n")
+  stdout:write("DynASM ", _info.version, " ", _info.release, "  ", _info.url, "\n")
+  stdout:write[[
+
+Usage: dynasm [OPTION]... INFILE.dasc|-
+
+  -h, --help           Display this help text.
+  -V, --version        Display version and copyright information.
+
+  -o, --outfile FILE   Output file name (default is stdout).
+  -I, --include DIR    Add directory to the include search path.
+
+  -c, --ccomment       Use /* */ comments for assembler lines.
+  -C, --cppcomment     Use // comments for assembler lines (default).
+  -N, --nocomment      Suppress assembler lines in output.
+  -M, --maccomment     Show macro expansions as comments (default off).
+
+  -L, --nolineno       Suppress CPP line number information in output.
+  -F, --flushline      Flush action list for every line.
+
+  -D NAME[=SUBST]      Define a substitution.
+  -U NAME              Undefine a substitution.
+
+  -P, --dumpdef        Dump defines, macros, etc. Repeat for more output.
+  -A, --dumparch ARCH  Load architecture ARCH and dump description.
+]]
+  exit(0)
+end
+
+-- Print version information.
+function opt_map.version()
+  stdout:write(format("%s version %s, released %s\n%s\n\n%s",
+    _info.name, _info.version, _info.release, _info.url, _info.copyright))
+  exit(0)
+end
+
+-- Misc. options.
+function opt_map.outfile(args) g_opt.outfile = optparam(args) end
+function opt_map.include(args) insert(g_opt.include, 1, optparam(args)) end
+function opt_map.ccomment() g_opt.comment = "/*|"; g_opt.endcomment = " */" end
+function opt_map.cppcomment() g_opt.comment = "//|"; g_opt.endcomment = "" end
+function opt_map.nocomment() g_opt.comment = false end
+function opt_map.maccomment() g_opt.maccomment = true end
+function opt_map.nolineno() g_opt.cpp = false end
+function opt_map.flushline() g_opt.flushline = true end
+function opt_map.dumpdef() g_opt.dumpdef = g_opt.dumpdef + 1 end
+
+------------------------------------------------------------------------------
+
+-- Short aliases for long options.
+local opt_alias = {
+  h = "help", ["?"] = "help", V = "version",
+  o = "outfile", I = "include",
+  c = "ccomment", C = "cppcomment", N = "nocomment", M = "maccomment",
+  L = "nolineno", F = "flushline",
+  P = "dumpdef", A = "dumparch",
+}
+
+-- Parse single option.
+local function parseopt(opt, args)
+  opt_current = #opt == 1 and "-"..opt or "--"..opt
+  local f = opt_map[opt] or opt_map[opt_alias[opt]]
+  if not f then
+    opterror("unrecognized option `", opt_current, "'. Try `--help'.\n")
+  end
+  f(args)
+end
+
+-- Parse arguments.
+local function parseargs(args)
+  -- Default options.
+  g_opt.comment = "//|"
+  g_opt.endcomment = ""
+  g_opt.cpp = true
+  g_opt.dumpdef = 0
+  g_opt.include = { "" }
+
+  -- Process all option arguments.
+  args.argn = 1
+  repeat
+    local a = args[args.argn]
+    if not a then break end
+    local lopt, opt = match(a, "^%-(%-?)(.+)")
+    if not opt then break end
+    args.argn = args.argn + 1
+    if lopt == "" then
+      -- Loop through short options.
+      for o in gmatch(opt, ".") do parseopt(o, args) end
+    else
+      -- Long option.
+      parseopt(opt, args)
+    end
+  until false
+
+  -- Check for proper number of arguments.
+  local nargs = #args - args.argn + 1
+  if nargs ~= 1 then
+    if nargs == 0 then
+      if g_opt.dumpdef > 0 then return dumpdef(stdout) end
+    end
+    opt_map.help()
+  end
+
+  -- Translate a single input file to a single output file
+  -- TODO: Handle multiple files?
+  translate(args[args.argn], g_opt.outfile)
+end
+
+------------------------------------------------------------------------------
+
+-- Add the directory dynasm.lua resides in to the Lua module search path.
+local arg = arg
+if arg and arg[0] then
+  prefix = match(arg[0], "^(.*[/\\])")
+  if package and prefix then package.path = prefix.."?.lua;"..package.path end
+end
+
+-- Start DynASM.
+parseargs{...}
+
+------------------------------------------------------------------------------
+
diff --git a/lib/luajit/etc/luajit.1 b/lib/luajit/etc/luajit.1
new file mode 100644
index 00000000..723a708c
--- /dev/null
+++ b/lib/luajit/etc/luajit.1
@@ -0,0 +1,88 @@
+.TH luajit 1 "" "" "LuaJIT documentation"
+.SH NAME
+luajit \- Just-In-Time Compiler for the Lua Language
+\fB
+.SH SYNOPSIS
+.B luajit
+[\fIoptions\fR]... [\fIscript\fR [\fIargs\fR]...]
+.SH "WEB SITE"
+.IR http://luajit.org
+.SH DESCRIPTION
+.PP
+This is the command-line program to run Lua programs with \fBLuaJIT\fR.
+.PP
+\fBLuaJIT\fR is a just-in-time (JIT) compiler for the Lua language.
+The virtual machine (VM) is based on a fast interpreter combined with
+a trace compiler. It can significantly improve the performance of Lua programs.
+.PP
+\fBLuaJIT\fR is API\- and ABI-compatible with the VM of the standard
+Lua\ 5.1 interpreter. When embedding the VM into an application,
+the built library can be used as a drop-in replacement.
+.SH OPTIONS
+.TP
+.BI "\-e " chunk
+Run the given chunk of Lua code.
+.TP
+.BI "\-l " library
+Load the named library, just like \fBrequire("\fR\fIlibrary\fR\fB")\fR.
+.TP
+.BI "\-b " ...
+Save or list bytecode. Run without arguments to get help on options.
+.TP
+.BI "\-j " command
+Perform LuaJIT control command (optional space after \fB\-j\fR).
+.TP
+.BI "\-O" [opt]
+Control LuaJIT optimizations.
+.TP
+.B "\-i"
+Run in interactive mode.
+.TP
+.B "\-v"
+Show \fBLuaJIT\fR version.
+.TP
+.B "\-E"
+Ignore environment variables.
+.TP
+.B "\-\-"
+Stop processing options.
+.TP
+.B "\-"
+Read script from stdin instead.
+.PP
+After all options are processed, the given \fIscript\fR is run.
+The arguments are passed in the global \fIarg\fR table.
+.PP
+Interactive mode is only entered, if no \fIscript\fR and no \fB\-e\fR
+option is given. Interactive mode can be left with EOF (\fICtrl\-Z\fB).
+.SH EXAMPLES
+.TP
+luajit hello.lua world
+
+Prints "Hello world", assuming \fIhello.lua\fR contains:
+.br
+  print("Hello", arg[1])
+.TP
+luajit \-e "local x=0; for i=1,1e9 do x=x+i end; print(x)"
+
+Calculates the sum of the numbers from 1 to 1000000000.
+.br
+And finishes in a reasonable amount of time, too.
+.TP
+luajit \-jv \-e "for i=1,10 do for j=1,10 do for k=1,100 do end end end"
+
+Runs some nested loops and shows the resulting traces.
+.SH COPYRIGHT
+.PP
+\fBLuaJIT\fR is Copyright \(co 2005-2014 Mike Pall.
+.br
+\fBLuaJIT\fR is open source software, released under the MIT license.
+.SH SEE ALSO
+.PP
+More details in the provided HTML docs or at:
+.IR http://luajit.org
+.br
+More about the Lua language can be found at:
+.IR http://lua.org/docs.html
+.PP
+lua(1)
diff --git a/lib/luajit/etc/luajit.pc b/lib/luajit/etc/luajit.pc
new file mode 100644
index 00000000..d3f0cf30
--- /dev/null
+++ b/lib/luajit/etc/luajit.pc
@@ -0,0 +1,25 @@
+# Package information for LuaJIT to be used by pkg-config.
+majver=2
+minver=0
+relver=3
+version=${majver}.${minver}.${relver}
+abiver=5.1
+
+prefix=/usr/local
+multilib=lib
+exec_prefix=${prefix}
+libdir=${exec_prefix}/${multilib}
+libname=luajit-${abiver}
+includedir=${prefix}/include/luajit-${majver}.${minver}
+
+INSTALL_LMOD=${prefix}/share/lua/${abiver}
+INSTALL_CMOD=${prefix}/${multilib}/lua/${abiver}
+
+Name: LuaJIT
+Description: Just-in-time compiler for Lua
+URL: http://luajit.org
+Version: ${version}
+Requires:
+Libs: -L${libdir} -l${libname}
+Libs.private: -Wl,-E -lm -ldl
+Cflags: -I${includedir}
diff --git a/lib/luajit/src/.gitignore b/lib/luajit/src/.gitignore
new file mode 100644
index 00000000..fc94e82c
--- /dev/null
+++ b/lib/luajit/src/.gitignore
@@ -0,0 +1,7 @@
+luajit
+lj_bcdef.h
+lj_ffdef.h
+lj_libdef.h
+lj_recdef.h
+lj_folddef.h
+lj_vm.s
diff --git a/lib/luajit/src/Makefile b/lib/luajit/src/Makefile
new file mode 100644
index 00000000..9551781a
--- /dev/null
+++ b/lib/luajit/src/Makefile
@@ -0,0 +1,686 @@
+##############################################################################
+# LuaJIT Makefile. Requires GNU Make.
+#
+# Please read doc/install.html before changing any variables!
+#
+# Suitable for POSIX platforms (Linux, *BSD, OSX etc.).
+# Also works with MinGW and Cygwin on Windows.
+# Please check msvcbuild.bat for building with MSVC on Windows.
+#
+# Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+##############################################################################
+
+MAJVER=  2
+MINVER=  0
+RELVER=  3
+ABIVER=  5.1
+NODOTABIVER= 51
+
+##############################################################################
+#############################  COMPILER OPTIONS  #############################
+##############################################################################
+# These options mainly affect the speed of the JIT compiler itself, not the
+# speed of the JIT-compiled code. Turn any of the optional settings on by
+# removing the '#' in front of them. Make sure you force a full recompile
+# with "make clean", followed by "make" if you change any options.
+#
+# LuaJIT builds as a native 32 or 64 bit binary by default.
+CC= gcc
+#
+# Use this if you want to force a 32 bit build on a 64 bit multilib OS.
+#CC= gcc -m32
+#
+# Since the assembler part does NOT maintain a frame pointer, it's pointless
+# to slow down the C part by not omitting it. Debugging, tracebacks and
+# unwinding are not affected -- the assembler part has frame unwind
+# information and GCC emits it where needed (x64) or with -g (see CCDEBUG).
+CCOPT= -O2 -fomit-frame-pointer
+# Use this if you want to generate a smaller binary (but it's slower):
+#CCOPT= -Os -fomit-frame-pointer
+# Note: it's no longer recommended to use -O3 with GCC 4.x.
+# The I-Cache bloat usually outweighs the benefits from aggressive inlining.
+#
+# Target-specific compiler options:
+#
+# x86 only: it's recommended to compile at least for i686. Better yet,
+# compile for an architecture that has SSE2, too (-msse -msse2).
+#
+# x86/x64 only: For GCC 4.2 or higher and if you don't intend to distribute
+# the binaries to a different machine you could also use: -march=native
+#
+CCOPT_x86= -march=i686
+CCOPT_x64=
+CCOPT_arm=
+CCOPT_ppc=
+CCOPT_ppcspe=
+CCOPT_mips=
+#
+CCDEBUG=
+# Uncomment the next line to generate debug information:
+#CCDEBUG= -g
+#
+CCWARN= -Wall
+# Uncomment the next line to enable more warnings:
+#CCWARN+= -Wextra -Wdeclaration-after-statement -Wredundant-decls -Wshadow -Wpointer-arith
+#
+##############################################################################
+
+##############################################################################
+################################  BUILD MODE  ################################
+##############################################################################
+# The default build mode is mixed mode on POSIX. On Windows this is the same
+# as dynamic mode.
+#
+# Mixed mode creates a static + dynamic library and a statically linked luajit.
+BUILDMODE= mixed
+#
+# Static mode creates a static library and a statically linked luajit.
+#BUILDMODE= static
+#
+# Dynamic mode creates a dynamic library and a dynamically linked luajit.
+# Note: this executable will only run when the library is installed!
+#BUILDMODE= dynamic
+#
+##############################################################################
+
+##############################################################################
+#################################  FEATURES  #################################
+##############################################################################
+# Enable/disable these features as needed, but make sure you force a full
+# recompile with "make clean", followed by "make".
+XCFLAGS=
+#
+# Permanently disable the FFI extension to reduce the size of the LuaJIT
+# executable. But please consider that the FFI library is compiled-in,
+# but NOT loaded by default. It only allocates any memory, if you actually
+# make use of it.
+#XCFLAGS+= -DLUAJIT_DISABLE_FFI
+#
+# Features from Lua 5.2 that are unlikely to break existing code are
+# enabled by default. Some other features that *might* break some existing
+# code (e.g. __pairs or os.execute() return values) can be enabled here.
+# Note: this does not provide full compatibility with Lua 5.2 at this time.
+#XCFLAGS+= -DLUAJIT_ENABLE_LUA52COMPAT
+#
+# Disable the JIT compiler, i.e. turn LuaJIT into a pure interpreter.
+#XCFLAGS+= -DLUAJIT_DISABLE_JIT
+#
+# Some architectures (e.g. PPC) can use either single-number (1) or
+# dual-number (2) mode. Uncomment one of these lines to override the
+# default mode. Please see LJ_ARCH_NUMMODE in lj_arch.h for details.
+#XCFLAGS+= -DLUAJIT_NUMMODE=1
+#XCFLAGS+= -DLUAJIT_NUMMODE=2
+#
+##############################################################################
+
+##############################################################################
+############################  DEBUGGING SUPPORT  #############################
+##############################################################################
+# Enable these options as needed, but make sure you force a full recompile
+# with "make clean", followed by "make".
+# Note that most of these are NOT suitable for benchmarking or release mode!
+#
+# Use the system provided memory allocator (realloc) instead of the
+# bundled memory allocator. This is slower, but sometimes helpful for
+# debugging. It's helpful for Valgrind's memcheck tool, too. This option
+# cannot be enabled on x64, since the built-in allocator is mandatory.
+#XCFLAGS+= -DLUAJIT_USE_SYSMALLOC
+#
+# This define is required to run LuaJIT under Valgrind. The Valgrind
+# header files must be installed. You should enable debug information, too.
+# Use --suppressions=lj.supp to avoid some false positives.
+#XCFLAGS+= -DLUAJIT_USE_VALGRIND
+#
+# This is the client for the GDB JIT API. GDB 7.0 or higher is required
+# to make use of it. See lj_gdbjit.c for details. Enabling this causes
+# a non-negligible overhead, even when not running under GDB.
+#XCFLAGS+= -DLUAJIT_USE_GDBJIT
+#
+# Turn on assertions for the Lua/C API to debug problems with lua_* calls.
+# This is rather slow -- use only while developing C libraries/embeddings.
+#XCFLAGS+= -DLUA_USE_APICHECK
+#
+# Turn on assertions for the whole LuaJIT VM. This significantly slows down
+# everything. Use only if you suspect a problem with LuaJIT itself.
+#XCFLAGS+= -DLUA_USE_ASSERT
+#
+##############################################################################
+# You probably don't need to change anything below this line!
+##############################################################################
+
+##############################################################################
+# Flags and options for host and target.
+##############################################################################
+
+# You can override the following variables at the make command line:
+#   CC       HOST_CC       STATIC_CC       DYNAMIC_CC
+#   CFLAGS   HOST_CFLAGS   TARGET_CFLAGS
+#   LDFLAGS  HOST_LDFLAGS  TARGET_LDFLAGS  TARGET_SHLDFLAGS
+#   LIBS     HOST_LIBS     TARGET_LIBS
+#   CROSS    HOST_SYS      TARGET_SYS      TARGET_FLAGS
+#
+# Cross-compilation examples:
+#   make HOST_CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
+#   make HOST_CC="gcc -m32" CROSS=powerpc-linux-gnu-
+
+CCOPTIONS= $(CCDEBUG) $(CCOPT) $(CCWARN) $(XCFLAGS) $(CFLAGS)
+LDOPTIONS= $(CCDEBUG) $(LDFLAGS)
+
+HOST_CC= $(CC)
+HOST_RM= rm -f
+# If left blank, minilua is built and used. You can supply an installed
+# copy of (plain) Lua 5.1 or 5.2, plus Lua BitOp. E.g. with: HOST_LUA=lua
+HOST_LUA=
+
+HOST_XCFLAGS= -I.
+HOST_XLDFLAGS=
+HOST_XLIBS=
+HOST_ACFLAGS= $(CCOPTIONS) $(HOST_XCFLAGS) $(TARGET_ARCH) $(HOST_CFLAGS)
+HOST_ALDFLAGS= $(LDOPTIONS) $(HOST_XLDFLAGS) $(HOST_LDFLAGS)
+HOST_ALIBS= $(HOST_XLIBS) $(LIBS) $(HOST_LIBS)
+
+STATIC_CC = $(CROSS)$(CC)
+DYNAMIC_CC = $(CROSS)$(CC) -fPIC
+TARGET_CC= $(STATIC_CC)
+TARGET_STCC= $(STATIC_CC)
+TARGET_DYNCC= $(DYNAMIC_CC)
+TARGET_LD= $(CROSS)$(CC)
+TARGET_AR= $(CROSS)ar rcus
+TARGET_STRIP= $(CROSS)strip
+
+TARGET_LIBPATH= $(or $(PREFIX),/usr/local)/$(or $(MULTILIB),lib)
+TARGET_SONAME= libluajit-$(ABIVER).so.$(MAJVER)
+TARGET_DYLIBNAME= libluajit-$(ABIVER).$(MAJVER).dylib
+TARGET_DYLIBPATH= $(TARGET_LIBPATH)/$(TARGET_DYLIBNAME)
+TARGET_DLLNAME= lua$(NODOTABIVER).dll
+TARGET_XSHLDFLAGS= -shared -fPIC -Wl,-soname,$(TARGET_SONAME)
+TARGET_DYNXLDOPTS=
+
+TARGET_LFSFLAGS= -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+TARGET_XCFLAGS= $(TARGET_LFSFLAGS) -U_FORTIFY_SOURCE
+TARGET_XLDFLAGS=
+TARGET_XLIBS= -lm
+TARGET_TCFLAGS= $(CCOPTIONS) $(TARGET_XCFLAGS) $(TARGET_FLAGS) $(TARGET_CFLAGS)
+TARGET_ACFLAGS= $(CCOPTIONS) $(TARGET_XCFLAGS) $(TARGET_FLAGS) $(TARGET_CFLAGS)
+TARGET_ALDFLAGS= $(LDOPTIONS) $(TARGET_XLDFLAGS) $(TARGET_FLAGS) $(TARGET_LDFLAGS)
+TARGET_ASHLDFLAGS= $(LDOPTIONS) $(TARGET_XSHLDFLAGS) $(TARGET_FLAGS) $(TARGET_SHLDFLAGS)
+TARGET_ALIBS= $(TARGET_XLIBS) $(LIBS) $(TARGET_LIBS)
+
+TARGET_TESTARCH=$(shell $(TARGET_CC) $(TARGET_TCFLAGS) -E lj_arch.h -dM)
+ifneq (,$(findstring LJ_TARGET_X64 ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= x64
+else
+ifneq (,$(findstring LJ_TARGET_X86 ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= x86
+else
+ifneq (,$(findstring LJ_TARGET_ARM ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= arm
+else
+ifneq (,$(findstring LJ_TARGET_PPC ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= ppc
+else
+ifneq (,$(findstring LJ_TARGET_PPCSPE ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= ppcspe
+else
+ifneq (,$(findstring LJ_TARGET_MIPS ,$(TARGET_TESTARCH)))
+  ifneq (,$(findstring MIPSEL ,$(TARGET_TESTARCH)))
+    TARGET_ARCH= -D__MIPSEL__=1
+  endif
+  TARGET_LJARCH= mips
+else
+  $(error Unsupported target architecture)
+endif
+endif
+endif
+endif
+endif
+endif
+
+ifneq (,$(findstring LJ_TARGET_PS3 1,$(TARGET_TESTARCH)))
+  TARGET_SYS= PS3
+  TARGET_ARCH+= -D__CELLOS_LV2__
+  TARGET_XCFLAGS+= -DLUAJIT_USE_SYSMALLOC
+endif
+ifneq (,$(findstring LJ_NO_UNWIND 1,$(TARGET_TESTARCH)))
+  TARGET_ARCH+= -DLUAJIT_NO_UNWIND
+endif
+
+TARGET_XCFLAGS+= $(CCOPT_$(TARGET_LJARCH))
+TARGET_ARCH+= $(patsubst %,-DLUAJIT_TARGET=LUAJIT_ARCH_%,$(TARGET_LJARCH))
+
+ifneq (,$(PREFIX))
+ifneq (/usr/local,$(PREFIX))
+  TARGET_XCFLAGS+= -DLUA_ROOT=\"$(PREFIX)\"
+  ifneq (/usr,$(PREFIX))
+    TARGET_DYNXLDOPTS= -Wl,-rpath,$(TARGET_LIBPATH)
+  endif
+endif
+endif
+ifneq (,$(MULTILIB))
+  TARGET_XCFLAGS+= -DLUA_MULTILIB=\"$(MULTILIB)\"
+endif
+ifneq (,$(LMULTILIB))
+  TARGET_XCFLAGS+= -DLUA_LMULTILIB=\"$(LMULTILIB)\"
+endif
+
+##############################################################################
+# System detection.
+##############################################################################
+
+ifeq (Windows,$(findstring Windows,$(OS))$(MSYSTEM)$(TERM))
+  HOST_SYS= Windows
+  HOST_RM= del
+else
+  HOST_SYS:= $(shell uname -s)
+  ifneq (,$(findstring MINGW,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= mingw
+  endif
+  ifneq (,$(findstring CYGWIN,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= cygwin
+  endif
+endif
+
+TARGET_SYS?= $(HOST_SYS)
+ifeq (Windows,$(TARGET_SYS))
+  TARGET_STRIP+= --strip-unneeded
+  TARGET_XSHLDFLAGS= -shared
+  TARGET_DYNXLDOPTS=
+else
+ifeq (Darwin,$(TARGET_SYS))
+  ifeq (,$(MACOSX_DEPLOYMENT_TARGET))
+    export MACOSX_DEPLOYMENT_TARGET=10.4
+  endif
+  TARGET_STRIP+= -x
+  TARGET_AR+= 2>/dev/null
+  ifeq (,$(shell $(TARGET_CC) -o /dev/null -c -x c /dev/null -fno-stack-protector 2>/dev/null || echo 1))
+    TARGET_XCFLAGS+= -fno-stack-protector
+  endif
+  TARGET_XSHLDFLAGS= -dynamiclib -single_module -undefined dynamic_lookup -fPIC
+  TARGET_DYNXLDOPTS=
+  TARGET_XSHLDFLAGS+= -install_name $(TARGET_DYLIBPATH) -compatibility_version $(MAJVER).$(MINVER) -current_version $(MAJVER).$(MINVER).$(RELVER)
+  ifeq (x64,$(TARGET_LJARCH))
+    TARGET_XLDFLAGS+= -pagezero_size 10000 -image_base 100000000
+    TARGET_XSHLDFLAGS+= -image_base 7fff04c4a000
+  endif
+else
+ifeq (iOS,$(TARGET_SYS))
+  TARGET_STRIP+= -x
+  TARGET_AR+= 2>/dev/null
+  TARGET_XCFLAGS+= -fno-stack-protector
+  TARGET_XSHLDFLAGS= -dynamiclib -single_module -undefined dynamic_lookup -fPIC
+  TARGET_DYNXLDOPTS=
+  TARGET_XSHLDFLAGS+= -install_name $(TARGET_DYLIBPATH) -compatibility_version $(MAJVER).$(MINVER) -current_version $(MAJVER).$(MINVER).$(RELVER)
+else
+  ifneq (,$(findstring stack-protector,$(shell $(TARGET_CC) -dumpspecs)))
+    TARGET_XCFLAGS+= -fno-stack-protector
+  endif
+  ifneq (SunOS,$(TARGET_SYS))
+    ifneq (PS3,$(TARGET_SYS))
+      TARGET_XLDFLAGS+= -Wl,-E
+    endif
+  endif
+  ifeq (Linux,$(TARGET_SYS))
+    TARGET_XLIBS+= -ldl
+  endif
+  ifeq (GNU/kFreeBSD,$(TARGET_SYS))
+    TARGET_XLIBS+= -ldl
+  endif
+endif
+endif
+endif
+
+ifneq ($(HOST_SYS),$(TARGET_SYS))
+  ifeq (Windows,$(TARGET_SYS))
+    HOST_XCFLAGS+= -malign-double -DLUAJIT_OS=LUAJIT_OS_WINDOWS
+  else
+  ifeq (Linux,$(TARGET_SYS))
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_LINUX
+  else
+  ifeq (Darwin,$(TARGET_SYS))
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_OSX
+  else
+  ifeq (iOS,$(TARGET_SYS))
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_OSX
+  else
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_OTHER
+  endif
+  endif
+  endif
+  endif
+endif
+
+ifneq (,$(CCDEBUG))
+  TARGET_STRIP= @:
+endif
+
+##############################################################################
+# Files and pathnames.
+##############################################################################
+
+MINILUA_O= host/minilua.o
+MINILUA_LIBS= -lm
+MINILUA_T= host/minilua
+MINILUA_X= $(MINILUA_T)
+
+ifeq (,$(HOST_LUA))
+  HOST_LUA= $(MINILUA_X)
+  DASM_DEP= $(MINILUA_T)
+endif
+
+DASM_DIR= ../dynasm
+DASM= $(HOST_LUA) $(DASM_DIR)/dynasm.lua
+DASM_XFLAGS=
+DASM_AFLAGS=
+DASM_ARCH= $(TARGET_LJARCH)
+
+ifneq (,$(findstring LJ_ARCH_BITS 64,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D P64
+endif
+ifneq (,$(findstring LJ_HASJIT 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D JIT
+endif
+ifneq (,$(findstring LJ_HASFFI 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D FFI
+endif
+ifneq (,$(findstring LJ_DUALNUM 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D DUALNUM
+endif
+ifneq (,$(findstring LJ_ARCH_HASFPU 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D FPU
+  TARGET_ARCH+= -DLJ_ARCH_HASFPU=1
+else
+  TARGET_ARCH+= -DLJ_ARCH_HASFPU=0
+endif
+ifeq (,$(findstring LJ_ABI_SOFTFP 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D HFABI
+  TARGET_ARCH+= -DLJ_ABI_SOFTFP=0
+else
+  TARGET_ARCH+= -DLJ_ABI_SOFTFP=1
+endif
+DASM_AFLAGS+= -D VER=$(subst LJ_ARCH_VERSION_,,$(filter LJ_ARCH_VERSION_%,$(subst LJ_ARCH_VERSION ,LJ_ARCH_VERSION_,$(TARGET_TESTARCH))))
+ifeq (Windows,$(TARGET_SYS))
+  DASM_AFLAGS+= -D WIN
+endif
+ifeq (x86,$(TARGET_LJARCH))
+  ifneq (,$(findstring __SSE2__ 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D SSE
+  endif
+else
+ifeq (x64,$(TARGET_LJARCH))
+  DASM_ARCH= x86
+else
+ifeq (arm,$(TARGET_LJARCH))
+  ifeq (iOS,$(TARGET_SYS))
+    DASM_AFLAGS+= -D IOS
+  endif
+else
+ifeq (ppc,$(TARGET_LJARCH))
+  ifneq (,$(findstring LJ_ARCH_SQRT 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D SQRT
+  endif
+  ifneq (,$(findstring LJ_ARCH_ROUND 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D ROUND
+  endif
+  ifneq (,$(findstring LJ_ARCH_PPC64 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D GPR64
+  endif
+  ifeq (PS3,$(TARGET_SYS))
+    DASM_AFLAGS+= -D PPE -D TOC
+  endif
+endif
+endif
+endif
+endif
+
+DASM_FLAGS= $(DASM_XFLAGS) $(DASM_AFLAGS)
+DASM_DASC= vm_$(DASM_ARCH).dasc
+
+BUILDVM_O= host/buildvm.o host/buildvm_asm.o host/buildvm_peobj.o \
+	   host/buildvm_lib.o host/buildvm_fold.o
+BUILDVM_T= host/buildvm
+BUILDVM_X= $(BUILDVM_T)
+
+HOST_O= $(MINILUA_O) $(BUILDVM_O)
+HOST_T= $(MINILUA_T) $(BUILDVM_T)
+
+LJVM_S= lj_vm.s
+LJVM_O= lj_vm.o
+LJVM_BOUT= $(LJVM_S)
+LJVM_MODE= elfasm
+
+LJLIB_O= lib_base.o lib_math.o lib_bit.o lib_string.o lib_table.o \
+	 lib_io.o lib_os.o lib_package.o lib_debug.o lib_jit.o lib_ffi.o
+LJLIB_C= $(LJLIB_O:.o=.c)
+
+LJCORE_O= lj_gc.o lj_err.o lj_char.o lj_bc.o lj_obj.o \
+	  lj_str.o lj_tab.o lj_func.o lj_udata.o lj_meta.o lj_debug.o \
+	  lj_state.o lj_dispatch.o lj_vmevent.o lj_vmmath.o lj_strscan.o \
+	  lj_api.o lj_lex.o lj_parse.o lj_bcread.o lj_bcwrite.o lj_load.o \
+	  lj_ir.o lj_opt_mem.o lj_opt_fold.o lj_opt_narrow.o \
+	  lj_opt_dce.o lj_opt_loop.o lj_opt_split.o lj_opt_sink.o \
+	  lj_mcode.o lj_snap.o lj_record.o lj_crecord.o lj_ffrecord.o \
+	  lj_asm.o lj_trace.o lj_gdbjit.o \
+	  lj_ctype.o lj_cdata.o lj_cconv.o lj_ccall.o lj_ccallback.o \
+	  lj_carith.o lj_clib.o lj_cparse.o \
+	  lj_lib.o lj_alloc.o lib_aux.o \
+	  $(LJLIB_O) lib_init.o
+
+LJVMCORE_O= $(LJVM_O) $(LJCORE_O)
+LJVMCORE_DYNO= $(LJVMCORE_O:.o=_dyn.o)
+
+LIB_VMDEF= jit/vmdef.lua
+LIB_VMDEFP= $(LIB_VMDEF)
+
+LUAJIT_O= luajit.o
+LUAJIT_A= libluajit.a
+LUAJIT_SO= libluajit.so
+LUAJIT_T= luajit
+
+ALL_T= $(LUAJIT_T) $(LUAJIT_A) $(LUAJIT_SO) $(HOST_T)
+ALL_HDRGEN= lj_bcdef.h lj_ffdef.h lj_libdef.h lj_recdef.h lj_folddef.h \
+	    host/buildvm_arch.h
+ALL_GEN= $(LJVM_S) $(ALL_HDRGEN) $(LIB_VMDEFP)
+WIN_RM= *.obj *.lib *.exp *.dll *.exe *.manifest *.pdb *.ilk
+ALL_RM= $(ALL_T) $(ALL_GEN) *.o host/*.o $(WIN_RM)
+
+##############################################################################
+# Build mode handling.
+##############################################################################
+
+# Mixed mode defaults.
+TARGET_O= $(LUAJIT_A)
+TARGET_T= $(LUAJIT_T) $(LUAJIT_SO)
+TARGET_DEP= $(LIB_VMDEF) $(LUAJIT_SO)
+
+ifeq (Windows,$(TARGET_SYS))
+  TARGET_DYNCC= $(STATIC_CC)
+  LJVM_MODE= peobj
+  LJVM_BOUT= $(LJVM_O)
+  LUAJIT_T= luajit.exe
+  ifeq (cygwin,$(HOST_MSYS))
+    LUAJIT_SO= cyg$(TARGET_DLLNAME)
+  else
+    LUAJIT_SO= $(TARGET_DLLNAME)
+  endif
+  # Mixed mode is not supported on Windows. And static mode doesn't work well.
+  # C modules cannot be loaded, because they bind to lua51.dll.
+  ifneq (static,$(BUILDMODE))
+    BUILDMODE= dynamic
+    TARGET_XCFLAGS+= -DLUA_BUILD_AS_DLL
+  endif
+endif
+ifeq (Darwin,$(TARGET_SYS))
+  LJVM_MODE= machasm
+endif
+ifeq (iOS,$(TARGET_SYS))
+  LJVM_MODE= machasm
+endif
+ifeq (SunOS,$(TARGET_SYS))
+  BUILDMODE= static
+endif
+ifeq (PS3,$(TARGET_SYS))
+  BUILDMODE= static
+endif
+
+ifeq (Windows,$(HOST_SYS))
+  MINILUA_T= host/minilua.exe
+  BUILDVM_T= host/buildvm.exe
+  ifeq (,$(HOST_MSYS))
+    MINILUA_X= host\minilua
+    BUILDVM_X= host\buildvm
+    ALL_RM:= $(subst /,\,$(ALL_RM))
+  endif
+endif
+
+ifeq (static,$(BUILDMODE))
+  TARGET_DYNCC= @:
+  TARGET_T= $(LUAJIT_T)
+  TARGET_DEP= $(LIB_VMDEF)
+else
+ifeq (dynamic,$(BUILDMODE))
+  ifneq (Windows,$(TARGET_SYS))
+    TARGET_CC= $(DYNAMIC_CC)
+  endif
+  TARGET_DYNCC= @:
+  LJVMCORE_DYNO= $(LJVMCORE_O)
+  TARGET_O= $(LUAJIT_SO)
+  TARGET_XLDFLAGS+= $(TARGET_DYNXLDOPTS)
+else
+ifeq (Darwin,$(TARGET_SYS))
+  TARGET_DYNCC= @:
+  LJVMCORE_DYNO= $(LJVMCORE_O)
+endif
+ifeq (iOS,$(TARGET_SYS))
+  TARGET_DYNCC= @:
+  LJVMCORE_DYNO= $(LJVMCORE_O)
+endif
+endif
+endif
+
+Q= @
+E= @echo
+#Q=
+#E= @:
+
+##############################################################################
+# Make targets.
+##############################################################################
+
+default all:	$(TARGET_T)
+
+amalg:
+	@grep "^[+|]" ljamalg.c
+	$(MAKE) all "LJCORE_O=ljamalg.o"
+
+clean:
+	$(HOST_RM) $(ALL_RM)
+
+depend:
+	@for file in $(ALL_HDRGEN); do \
+	  test -f $$file || touch $$file; \
+	  done
+	@$(HOST_CC) $(HOST_ACFLAGS) -MM *.c host/*.c | \
+	  sed -e "s| [^ ]*/dasm_\S*\.h||g" \
+	      -e "s|^\([^l ]\)|host/\1|" \
+	      -e "s| lj_target_\S*\.h| lj_target_*.h|g" \
+	      -e "s| lj_emit_\S*\.h| lj_emit_*.h|g" \
+	      -e "s| lj_asm_\S*\.h| lj_asm_*.h|g" >Makefile.dep
+	@for file in $(ALL_HDRGEN); do \
+	  test -s $$file || $(HOST_RM) $$file; \
+	  done
+
+.PHONY: default all amalg clean depend
+
+##############################################################################
+# Rules for generated files.
+##############################################################################
+
+$(MINILUA_T): $(MINILUA_O)
+	$(E) "HOSTLINK  $@"
+	$(Q)$(HOST_CC) $(HOST_ALDFLAGS) -o $@ $(MINILUA_O) $(MINILUA_LIBS) $(HOST_ALIBS)
+
+host/buildvm_arch.h: $(DASM_DASC) $(DASM_DEP)
+	$(E) "DYNASM    $@"
+	$(Q)$(DASM) $(DASM_FLAGS) -o $@ $(DASM_DASC)
+
+host/buildvm.o: $(DASM_DIR)/dasm_*.h
+
+$(BUILDVM_T): $(BUILDVM_O)
+	$(E) "HOSTLINK  $@"
+	$(Q)$(HOST_CC) $(HOST_ALDFLAGS) -o $@ $(BUILDVM_O) $(HOST_ALIBS)
+
+$(LJVM_BOUT): $(BUILDVM_T)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m $(LJVM_MODE) -o $@
+
+lj_bcdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m bcdef -o $@ $(LJLIB_C)
+
+lj_ffdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m ffdef -o $@ $(LJLIB_C)
+
+lj_libdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m libdef -o $@ $(LJLIB_C)
+
+lj_recdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m recdef -o $@ $(LJLIB_C)
+
+$(LIB_VMDEF): $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m vmdef -o $(LIB_VMDEFP) $(LJLIB_C)
+
+lj_folddef.h: $(BUILDVM_T) lj_opt_fold.c
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m folddef -o $@ lj_opt_fold.c
+
+##############################################################################
+# Object file rules.
+##############################################################################
+
+%.o: %.c
+	$(E) "CC        $@"
+	$(Q)$(TARGET_DYNCC) $(TARGET_ACFLAGS) -c -o $(@:.o=_dyn.o) $<
+	$(Q)$(TARGET_CC) $(TARGET_ACFLAGS) -c -o $@ $<
+
+%.o: %.s
+	$(E) "ASM       $@"
+	$(Q)$(TARGET_DYNCC) $(TARGET_ACFLAGS) -c -o $(@:.o=_dyn.o) $<
+	$(Q)$(TARGET_CC) $(TARGET_ACFLAGS) -c -o $@ $<
+
+$(LUAJIT_O):
+	$(E) "CC        $@"
+	$(Q)$(TARGET_STCC) $(TARGET_ACFLAGS) -c -o $@ $<
+
+$(HOST_O): %.o: %.c
+	$(E) "HOSTCC    $@"
+	$(Q)$(HOST_CC) $(HOST_ACFLAGS) -c -o $@ $<
+
+include Makefile.dep
+
+##############################################################################
+# Target file rules.
+##############################################################################
+
+$(LUAJIT_A): $(LJVMCORE_O)
+	$(E) "AR        $@"
+	$(Q)$(TARGET_AR) $@ $(LJVMCORE_O)
+
+# The dependency on _O, but linking with _DYNO is intentional.
+$(LUAJIT_SO): $(LJVMCORE_O)
+	$(E) "DYNLINK   $@"
+	$(Q)$(TARGET_LD) $(TARGET_ASHLDFLAGS) -o $@ $(LJVMCORE_DYNO) $(TARGET_ALIBS)
+	$(Q)$(TARGET_STRIP) $@
+
+$(LUAJIT_T): $(TARGET_O) $(LUAJIT_O) $(TARGET_DEP)
+	$(E) "LINK      $@"
+	$(Q)$(TARGET_LD) $(TARGET_ALDFLAGS) -o $@ $(LUAJIT_O) $(TARGET_O) $(TARGET_ALIBS)
+	$(Q)$(TARGET_STRIP) $@
+	$(E) "OK        Successfully built LuaJIT"
+
+##############################################################################
diff --git a/lib/luajit/src/Makefile.dep b/lib/luajit/src/Makefile.dep
new file mode 100644
index 00000000..8ca33151
--- /dev/null
+++ b/lib/luajit/src/Makefile.dep
@@ -0,0 +1,226 @@
+lib_aux.o: lib_aux.c lua.h luaconf.h lauxlib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_state.h lj_trace.h lj_jit.h lj_ir.h \
+ lj_dispatch.h lj_bc.h lj_traceerr.h lj_lib.h lj_alloc.h
+lib_base.o: lib_base.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_str.h \
+ lj_tab.h lj_meta.h lj_state.h lj_ctype.h lj_cconv.h lj_bc.h lj_ff.h \
+ lj_ffdef.h lj_dispatch.h lj_jit.h lj_ir.h lj_char.h lj_strscan.h \
+ lj_lib.h lj_libdef.h
+lib_bit.o: lib_bit.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_str.h lj_lib.h lj_libdef.h
+lib_debug.o: lib_debug.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_lib.h \
+ lj_libdef.h
+lib_ffi.o: lib_ffi.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_meta.h \
+ lj_ctype.h lj_cparse.h lj_cdata.h lj_cconv.h lj_carith.h lj_ccall.h \
+ lj_ccallback.h lj_clib.h lj_ff.h lj_ffdef.h lj_lib.h lj_libdef.h
+lib_init.o: lib_init.c lua.h luaconf.h lauxlib.h lualib.h lj_arch.h
+lib_io.o: lib_io.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_state.h lj_ff.h \
+ lj_ffdef.h lj_lib.h lj_libdef.h
+lib_jit.o: lib_jit.c lua.h luaconf.h lauxlib.h lualib.h lj_arch.h \
+ lj_obj.h lj_def.h lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_tab.h \
+ lj_bc.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h lj_target.h \
+ lj_target_*.h lj_dispatch.h lj_vm.h lj_vmevent.h lj_lib.h luajit.h \
+ lj_libdef.h
+lib_math.o: lib_math.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_lib.h lj_vm.h lj_libdef.h
+lib_os.o: lib_os.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_lib.h lj_libdef.h
+lib_package.o: lib_package.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_err.h lj_errmsg.h lj_lib.h
+lib_string.o: lib_string.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h \
+ lj_meta.h lj_state.h lj_ff.h lj_ffdef.h lj_bcdump.h lj_lex.h lj_char.h \
+ lj_lib.h lj_libdef.h
+lib_table.o: lib_table.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_lib.h \
+ lj_libdef.h
+lj_alloc.o: lj_alloc.c lj_def.h lua.h luaconf.h lj_arch.h lj_alloc.h
+lj_api.o: lj_api.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_tab.h lj_func.h lj_udata.h \
+ lj_meta.h lj_state.h lj_bc.h lj_frame.h lj_trace.h lj_jit.h lj_ir.h \
+ lj_dispatch.h lj_traceerr.h lj_vm.h lj_strscan.h
+lj_asm.o: lj_asm.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_str.h lj_tab.h lj_frame.h lj_bc.h lj_ctype.h lj_ir.h lj_jit.h \
+ lj_ircall.h lj_iropt.h lj_mcode.h lj_trace.h lj_dispatch.h lj_traceerr.h \
+ lj_snap.h lj_asm.h lj_vm.h lj_target.h lj_target_*.h lj_emit_*.h \
+ lj_asm_*.h
+lj_bc.o: lj_bc.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_bc.h \
+ lj_bcdef.h
+lj_bcread.o: lj_bcread.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_bc.h lj_ctype.h \
+ lj_cdata.h lualib.h lj_lex.h lj_bcdump.h lj_state.h
+lj_bcwrite.o: lj_bcwrite.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_str.h lj_bc.h lj_ctype.h lj_dispatch.h lj_jit.h lj_ir.h \
+ lj_bcdump.h lj_lex.h lj_err.h lj_errmsg.h lj_vm.h
+lj_carith.o: lj_carith.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_meta.h lj_ctype.h lj_cconv.h \
+ lj_cdata.h lj_carith.h
+lj_ccall.o: lj_ccall.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_ctype.h lj_cconv.h \
+ lj_cdata.h lj_ccall.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h lj_bc.h \
+ lj_traceerr.h
+lj_ccallback.o: lj_ccallback.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_state.h lj_frame.h \
+ lj_bc.h lj_ctype.h lj_cconv.h lj_ccall.h lj_ccallback.h lj_target.h \
+ lj_target_*.h lj_mcode.h lj_jit.h lj_ir.h lj_trace.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h
+lj_cconv.o: lj_cconv.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_tab.h lj_ctype.h lj_gc.h lj_cdata.h lj_cconv.h \
+ lj_ccallback.h
+lj_cdata.o: lj_cdata.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_ctype.h lj_cconv.h \
+ lj_cdata.h
+lj_char.o: lj_char.c lj_char.h lj_def.h lua.h luaconf.h
+lj_clib.o: lj_clib.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_tab.h lj_str.h lj_udata.h lj_ctype.h lj_cconv.h \
+ lj_cdata.h lj_clib.h
+lj_cparse.o: lj_cparse.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_ctype.h lj_cparse.h lj_frame.h \
+ lj_bc.h lj_vm.h lj_char.h lj_strscan.h
+lj_crecord.o: lj_crecord.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_frame.h lj_bc.h lj_ctype.h \
+ lj_gc.h lj_cdata.h lj_cparse.h lj_cconv.h lj_clib.h lj_ccall.h lj_ff.h \
+ lj_ffdef.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h lj_trace.h \
+ lj_dispatch.h lj_traceerr.h lj_record.h lj_ffrecord.h lj_snap.h \
+ lj_crecord.h
+lj_ctype.o: lj_ctype.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_ctype.h lj_ccallback.h
+lj_debug.o: lj_debug.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_tab.h lj_state.h lj_frame.h \
+ lj_bc.h lj_jit.h lj_ir.h
+lj_dispatch.o: lj_dispatch.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_func.h lj_str.h lj_tab.h lj_meta.h lj_debug.h \
+ lj_state.h lj_frame.h lj_bc.h lj_ff.h lj_ffdef.h lj_jit.h lj_ir.h \
+ lj_ccallback.h lj_ctype.h lj_gc.h lj_trace.h lj_dispatch.h lj_traceerr.h \
+ lj_vm.h luajit.h
+lj_err.o: lj_err.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_err.h \
+ lj_errmsg.h lj_debug.h lj_str.h lj_func.h lj_state.h lj_frame.h lj_bc.h \
+ lj_ff.h lj_ffdef.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h
+lj_ffrecord.o: lj_ffrecord.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_frame.h lj_bc.h lj_ff.h \
+ lj_ffdef.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h lj_trace.h \
+ lj_dispatch.h lj_traceerr.h lj_record.h lj_ffrecord.h lj_crecord.h \
+ lj_vm.h lj_strscan.h lj_recdef.h
+lj_func.o: lj_func.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_func.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h lj_bc.h \
+ lj_traceerr.h lj_vm.h
+lj_gc.o: lj_gc.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_func.h lj_udata.h lj_meta.h \
+ lj_state.h lj_frame.h lj_bc.h lj_ctype.h lj_cdata.h lj_trace.h lj_jit.h \
+ lj_ir.h lj_dispatch.h lj_traceerr.h lj_vm.h
+lj_gdbjit.o: lj_gdbjit.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_frame.h lj_bc.h lj_jit.h \
+ lj_ir.h lj_dispatch.h
+lj_ir.o: lj_ir.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_str.h lj_tab.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h lj_trace.h \
+ lj_dispatch.h lj_bc.h lj_traceerr.h lj_ctype.h lj_cdata.h lj_carith.h \
+ lj_vm.h lj_strscan.h lj_lib.h
+lj_lex.o: lj_lex.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_ctype.h lj_cdata.h lualib.h \
+ lj_state.h lj_lex.h lj_parse.h lj_char.h lj_strscan.h
+lj_lib.o: lj_lib.c lauxlib.h lua.h luaconf.h lj_obj.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_func.h lj_bc.h \
+ lj_dispatch.h lj_jit.h lj_ir.h lj_vm.h lj_strscan.h lj_lib.h
+lj_load.o: lj_load.c lua.h luaconf.h lauxlib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_func.h lj_frame.h \
+ lj_bc.h lj_vm.h lj_lex.h lj_bcdump.h lj_parse.h
+lj_mcode.o: lj_mcode.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_jit.h lj_ir.h lj_mcode.h lj_trace.h \
+ lj_dispatch.h lj_bc.h lj_traceerr.h lj_vm.h
+lj_meta.o: lj_meta.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_meta.h lj_frame.h lj_bc.h \
+ lj_vm.h lj_strscan.h
+lj_obj.o: lj_obj.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h
+lj_opt_dce.o: lj_opt_dce.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_ir.h lj_jit.h lj_iropt.h
+lj_opt_fold.o: lj_opt_fold.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_str.h lj_tab.h lj_ir.h lj_jit.h lj_iropt.h lj_trace.h lj_dispatch.h \
+ lj_bc.h lj_traceerr.h lj_ctype.h lj_gc.h lj_carith.h lj_vm.h \
+ lj_strscan.h lj_folddef.h
+lj_opt_loop.o: lj_opt_loop.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_ir.h lj_jit.h lj_iropt.h lj_trace.h \
+ lj_dispatch.h lj_bc.h lj_traceerr.h lj_snap.h lj_vm.h
+lj_opt_mem.o: lj_opt_mem.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_tab.h lj_ir.h lj_jit.h lj_iropt.h
+lj_opt_narrow.o: lj_opt_narrow.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_bc.h lj_ir.h lj_jit.h lj_iropt.h lj_trace.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h lj_strscan.h
+lj_opt_sink.o: lj_opt_sink.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_ir.h lj_jit.h lj_iropt.h lj_target.h lj_target_*.h
+lj_opt_split.o: lj_opt_split.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_str.h lj_ir.h lj_jit.h lj_ircall.h \
+ lj_iropt.h lj_vm.h
+lj_parse.o: lj_parse.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_tab.h lj_func.h \
+ lj_state.h lj_bc.h lj_ctype.h lj_lex.h lj_parse.h lj_vm.h lj_vmevent.h
+lj_record.o: lj_record.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_meta.h lj_frame.h lj_bc.h \
+ lj_ctype.h lj_gc.h lj_ff.h lj_ffdef.h lj_ir.h lj_jit.h lj_ircall.h \
+ lj_iropt.h lj_trace.h lj_dispatch.h lj_traceerr.h lj_record.h \
+ lj_ffrecord.h lj_snap.h lj_vm.h
+lj_snap.o: lj_snap.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_tab.h lj_state.h lj_frame.h lj_bc.h lj_ir.h lj_jit.h lj_iropt.h \
+ lj_trace.h lj_dispatch.h lj_traceerr.h lj_snap.h lj_target.h \
+ lj_target_*.h lj_ctype.h lj_cdata.h
+lj_state.o: lj_state.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_func.h lj_meta.h \
+ lj_state.h lj_frame.h lj_bc.h lj_ctype.h lj_trace.h lj_jit.h lj_ir.h \
+ lj_dispatch.h lj_traceerr.h lj_vm.h lj_lex.h lj_alloc.h
+lj_str.o: lj_str.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_state.h lj_char.h
+lj_strscan.o: lj_strscan.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_char.h lj_strscan.h
+lj_tab.o: lj_tab.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_tab.h
+lj_trace.o: lj_trace.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_frame.h lj_bc.h \
+ lj_state.h lj_ir.h lj_jit.h lj_iropt.h lj_mcode.h lj_trace.h \
+ lj_dispatch.h lj_traceerr.h lj_snap.h lj_gdbjit.h lj_record.h lj_asm.h \
+ lj_vm.h lj_vmevent.h lj_target.h lj_target_*.h
+lj_udata.o: lj_udata.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_udata.h
+lj_vmevent.o: lj_vmevent.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_str.h lj_tab.h lj_state.h lj_dispatch.h lj_bc.h lj_jit.h lj_ir.h \
+ lj_vm.h lj_vmevent.h
+lj_vmmath.o: lj_vmmath.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_ir.h lj_vm.h
+ljamalg.o: ljamalg.c lua.h luaconf.h lauxlib.h lj_gc.c lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_func.h \
+ lj_udata.h lj_meta.h lj_state.h lj_frame.h lj_bc.h lj_ctype.h lj_cdata.h \
+ lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h lj_traceerr.h lj_vm.h lj_err.c \
+ lj_debug.h lj_ff.h lj_ffdef.h lj_char.c lj_char.h lj_bc.c lj_bcdef.h \
+ lj_obj.c lj_str.c lj_tab.c lj_func.c lj_udata.c lj_meta.c lj_strscan.h \
+ lj_debug.c lj_state.c lj_lex.h lj_alloc.h lj_dispatch.c lj_ccallback.h \
+ luajit.h lj_vmevent.c lj_vmevent.h lj_vmmath.c lj_strscan.c lj_api.c \
+ lj_lex.c lualib.h lj_parse.h lj_parse.c lj_bcread.c lj_bcdump.h \
+ lj_bcwrite.c lj_load.c lj_ctype.c lj_cdata.c lj_cconv.h lj_cconv.c \
+ lj_ccall.c lj_ccall.h lj_ccallback.c lj_target.h lj_target_*.h \
+ lj_mcode.h lj_carith.c lj_carith.h lj_clib.c lj_clib.h lj_cparse.c \
+ lj_cparse.h lj_lib.c lj_lib.h lj_ir.c lj_ircall.h lj_iropt.h \
+ lj_opt_mem.c lj_opt_fold.c lj_folddef.h lj_opt_narrow.c lj_opt_dce.c \
+ lj_opt_loop.c lj_snap.h lj_opt_split.c lj_opt_sink.c lj_mcode.c \
+ lj_snap.c lj_record.c lj_record.h lj_ffrecord.h lj_crecord.c \
+ lj_crecord.h lj_ffrecord.c lj_recdef.h lj_asm.c lj_asm.h lj_emit_*.h \
+ lj_asm_*.h lj_trace.c lj_gdbjit.h lj_gdbjit.c lj_alloc.c lib_aux.c \
+ lib_base.c lj_libdef.h lib_math.c lib_string.c lib_table.c lib_io.c \
+ lib_os.c lib_package.c lib_debug.c lib_bit.c lib_jit.c lib_ffi.c \
+ lib_init.c
+luajit.o: luajit.c lua.h luaconf.h lauxlib.h lualib.h luajit.h lj_arch.h
+host/buildvm.o: host/buildvm.c host/buildvm.h lj_def.h lua.h luaconf.h \
+ lj_arch.h lj_obj.h lj_def.h lj_arch.h lj_gc.h lj_obj.h lj_bc.h lj_ir.h \
+ lj_ircall.h lj_ir.h lj_jit.h lj_frame.h lj_bc.h lj_dispatch.h lj_ctype.h \
+ lj_gc.h lj_ccall.h lj_ctype.h luajit.h \
+ host/buildvm_arch.h lj_traceerr.h
+host/buildvm_asm.o: host/buildvm_asm.c host/buildvm.h lj_def.h lua.h luaconf.h \
+ lj_arch.h lj_bc.h lj_def.h lj_arch.h
+host/buildvm_fold.o: host/buildvm_fold.c host/buildvm.h lj_def.h lua.h \
+ luaconf.h lj_arch.h lj_obj.h lj_def.h lj_arch.h lj_ir.h lj_obj.h
+host/buildvm_lib.o: host/buildvm_lib.c host/buildvm.h lj_def.h lua.h luaconf.h \
+ lj_arch.h lj_obj.h lj_def.h lj_arch.h lj_lib.h lj_obj.h
+host/buildvm_peobj.o: host/buildvm_peobj.c host/buildvm.h lj_def.h lua.h \
+ luaconf.h lj_arch.h lj_bc.h lj_def.h lj_arch.h
+host/minilua.o: host/minilua.c
diff --git a/lib/luajit/src/host/.gitignore b/lib/luajit/src/host/.gitignore
new file mode 100644
index 00000000..762ac2a0
--- /dev/null
+++ b/lib/luajit/src/host/.gitignore
@@ -0,0 +1,3 @@
+minilua
+buildvm
+buildvm_arch.h
diff --git a/lib/luajit/src/host/README b/lib/luajit/src/host/README
new file mode 100644
index 00000000..abfcdaa7
--- /dev/null
+++ b/lib/luajit/src/host/README
@@ -0,0 +1,4 @@
+The files in this directory are only used during the build process of LuaJIT.
+For cross-compilation, they must be executed on the host, not on the target.
+
+These files should NOT be installed!
diff --git a/lib/luajit/src/host/buildvm.c b/lib/luajit/src/host/buildvm.c
new file mode 100644
index 00000000..7687ad7a
--- /dev/null
+++ b/lib/luajit/src/host/buildvm.c
@@ -0,0 +1,516 @@
+/*
+** LuaJIT VM builder.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** This is a tool to build the hand-tuned assembler code required for
+** LuaJIT's bytecode interpreter. It supports a variety of output formats
+** to feed different toolchains (see usage() below).
+**
+** This tool is not particularly optimized because it's only used while
+** _building_ LuaJIT. There's no point in distributing or installing it.
+** Only the object code generated by this tool is linked into LuaJIT.
+**
+** Caveat: some memory is not free'd, error handling is lazy.
+** It's a one-shot tool -- any effort fixing this would be wasted.
+*/
+
+#include "buildvm.h"
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_ircall.h"
+#include "lj_frame.h"
+#include "lj_dispatch.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_ccall.h"
+#endif
+#include "luajit.h"
+
+#if defined(_WIN32)
+#include <fcntl.h>
+#include <io.h>
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+/* DynASM glue definitions. */
+#define Dst		ctx
+#define Dst_DECL	BuildCtx *ctx
+#define Dst_REF		(ctx->D)
+#define DASM_CHECKS	1
+
+#include "../dynasm/dasm_proto.h"
+
+/* Glue macros for DynASM. */
+static int collect_reloc(BuildCtx *ctx, uint8_t *addr, int idx, int type);
+
+#define DASM_EXTERN(ctx, addr, idx, type) \
+  collect_reloc(ctx, addr, idx, type)
+
+/* ------------------------------------------------------------------------ */
+
+/* Avoid trouble if cross-compiling for an x86 target. Speed doesn't matter. */
+#define DASM_ALIGNED_WRITES	1
+
+/* Embed architecture-specific DynASM encoder. */
+#if LJ_TARGET_X86ORX64
+#include "../dynasm/dasm_x86.h"
+#elif LJ_TARGET_ARM
+#include "../dynasm/dasm_arm.h"
+#elif LJ_TARGET_PPC
+#include "../dynasm/dasm_ppc.h"
+#elif LJ_TARGET_PPCSPE
+#include "../dynasm/dasm_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "../dynasm/dasm_mips.h"
+#else
+#error "No support for this architecture (yet)"
+#endif
+
+/* Embed generated architecture-specific backend. */
+#include "buildvm_arch.h"
+
+/* ------------------------------------------------------------------------ */
+
+void owrite(BuildCtx *ctx, const void *ptr, size_t sz)
+{
+  if (fwrite(ptr, 1, sz, ctx->fp) != sz) {
+    fprintf(stderr, "Error: cannot write to output file: %s\n",
+	    strerror(errno));
+    exit(1);
+  }
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* Emit code as raw bytes. Only used for DynASM debugging. */
+static void emit_raw(BuildCtx *ctx)
+{
+  owrite(ctx, ctx->code, ctx->codesz);
+}
+
+/* -- Build machine code -------------------------------------------------- */
+
+static const char *sym_decorate(BuildCtx *ctx,
+				const char *prefix, const char *suffix)
+{
+  char name[256];
+  char *p;
+#if LJ_64
+  const char *symprefix = ctx->mode == BUILD_machasm ? "_" : "";
+#elif LJ_TARGET_XBOX360
+  const char *symprefix = "";
+#else
+  const char *symprefix = ctx->mode != BUILD_elfasm ? "_" : "";
+#endif
+  sprintf(name, "%s%s%s", symprefix, prefix, suffix);
+  p = strchr(name, '@');
+  if (p) {
+#if LJ_TARGET_X86ORX64
+    if (!LJ_64 && (ctx->mode == BUILD_coffasm || ctx->mode == BUILD_peobj))
+      name[0] = '@';
+    else
+      *p = '\0';
+#elif (LJ_TARGET_PPC  || LJ_TARGET_PPCSPE) && !LJ_TARGET_CONSOLE
+    /* Keep @plt. */
+#else
+    *p = '\0';
+#endif
+  }
+  p = (char *)malloc(strlen(name)+1);  /* MSVC doesn't like strdup. */
+  strcpy(p, name);
+  return p;
+}
+
+#define NRELOCSYM	(sizeof(extnames)/sizeof(extnames[0])-1)
+
+static int relocmap[NRELOCSYM];
+
+/* Collect external relocations. */
+static int collect_reloc(BuildCtx *ctx, uint8_t *addr, int idx, int type)
+{
+  if (ctx->nreloc >= BUILD_MAX_RELOC) {
+    fprintf(stderr, "Error: too many relocations, increase BUILD_MAX_RELOC.\n");
+    exit(1);
+  }
+  if (relocmap[idx] < 0) {
+    relocmap[idx] = ctx->nrelocsym;
+    ctx->relocsym[ctx->nrelocsym] = sym_decorate(ctx, "", extnames[idx]);
+    ctx->nrelocsym++;
+  }
+  ctx->reloc[ctx->nreloc].ofs = (int32_t)(addr - ctx->code);
+  ctx->reloc[ctx->nreloc].sym = relocmap[idx];
+  ctx->reloc[ctx->nreloc].type = type;
+  ctx->nreloc++;
+#if LJ_TARGET_XBOX360
+  return (int)(ctx->code - addr) + 4;  /* Encode symbol offset of .text. */
+#else
+  return 0;  /* Encode symbol offset of 0. */
+#endif
+}
+
+/* Naive insertion sort. Performance doesn't matter here. */
+static void sym_insert(BuildCtx *ctx, int32_t ofs,
+		       const char *prefix, const char *suffix)
+{
+  ptrdiff_t i = ctx->nsym++;
+  while (i > 0) {
+    if (ctx->sym[i-1].ofs <= ofs)
+      break;
+    ctx->sym[i] = ctx->sym[i-1];
+    i--;
+  }
+  ctx->sym[i].ofs = ofs;
+  ctx->sym[i].name = sym_decorate(ctx, prefix, suffix);
+}
+
+/* Build the machine code. */
+static int build_code(BuildCtx *ctx)
+{
+  int status;
+  int i;
+
+  /* Initialize DynASM structures. */
+  ctx->nglob = GLOB__MAX;
+  ctx->glob = (void **)malloc(ctx->nglob*sizeof(void *));
+  memset(ctx->glob, 0, ctx->nglob*sizeof(void *));
+  ctx->nreloc = 0;
+
+  ctx->globnames = globnames;
+  ctx->relocsym = (const char **)malloc(NRELOCSYM*sizeof(const char *));
+  ctx->nrelocsym = 0;
+  for (i = 0; i < (int)NRELOCSYM; i++) relocmap[i] = -1;
+
+  ctx->dasm_ident = DASM_IDENT;
+  ctx->dasm_arch = DASM_ARCH;
+
+  dasm_init(Dst, DASM_MAXSECTION);
+  dasm_setupglobal(Dst, ctx->glob, ctx->nglob);
+  dasm_setup(Dst, build_actionlist);
+
+  /* Call arch-specific backend to emit the code. */
+  ctx->npc = build_backend(ctx);
+
+  /* Finalize the code. */
+  (void)dasm_checkstep(Dst, -1);
+  if ((status = dasm_link(Dst, &ctx->codesz))) return status;
+  ctx->code = (uint8_t *)malloc(ctx->codesz);
+  if ((status = dasm_encode(Dst, (void *)ctx->code))) return status;
+
+  /* Allocate symbol table and bytecode offsets. */
+  ctx->beginsym = sym_decorate(ctx, "", LABEL_PREFIX "vm_asm_begin");
+  ctx->sym = (BuildSym *)malloc((ctx->npc+ctx->nglob+1)*sizeof(BuildSym));
+  ctx->nsym = 0;
+  ctx->bc_ofs = (int32_t *)malloc(ctx->npc*sizeof(int32_t));
+
+  /* Collect the opcodes (PC labels). */
+  for (i = 0; i < ctx->npc; i++) {
+    int32_t ofs = dasm_getpclabel(Dst, i);
+    if (ofs < 0) return 0x22000000|i;
+    ctx->bc_ofs[i] = ofs;
+    if ((LJ_HASJIT ||
+	 !(i == BC_JFORI || i == BC_JFORL || i == BC_JITERL || i == BC_JLOOP ||
+	   i == BC_IFORL || i == BC_IITERL || i == BC_ILOOP)) &&
+	(LJ_HASFFI || i != BC_KCDATA))
+      sym_insert(ctx, ofs, LABEL_PREFIX_BC, bc_names[i]);
+  }
+
+  /* Collect the globals (named labels). */
+  for (i = 0; i < ctx->nglob; i++) {
+    const char *gl = globnames[i];
+    int len = (int)strlen(gl);
+    if (!ctx->glob[i]) {
+      fprintf(stderr, "Error: undefined global %s\n", gl);
+      exit(2);
+    }
+    /* Skip the _Z symbols. */
+    if (!(len >= 2 && gl[len-2] == '_' && gl[len-1] == 'Z'))
+      sym_insert(ctx, (int32_t)((uint8_t *)(ctx->glob[i]) - ctx->code),
+		 LABEL_PREFIX, globnames[i]);
+  }
+
+  /* Close the address range. */
+  sym_insert(ctx, (int32_t)ctx->codesz, "", "");
+  ctx->nsym--;
+
+  dasm_free(Dst);
+
+  return 0;
+}
+
+/* -- Generate VM enums --------------------------------------------------- */
+
+const char *const bc_names[] = {
+#define BCNAME(name, ma, mb, mc, mt)       #name,
+BCDEF(BCNAME)
+#undef BCNAME
+  NULL
+};
+
+const char *const ir_names[] = {
+#define IRNAME(name, m, m1, m2)	#name,
+IRDEF(IRNAME)
+#undef IRNAME
+  NULL
+};
+
+const char *const irt_names[] = {
+#define IRTNAME(name, size)	#name,
+IRTDEF(IRTNAME)
+#undef IRTNAME
+  NULL
+};
+
+const char *const irfpm_names[] = {
+#define FPMNAME(name)		#name,
+IRFPMDEF(FPMNAME)
+#undef FPMNAME
+  NULL
+};
+
+const char *const irfield_names[] = {
+#define FLNAME(name, ofs)	#name,
+IRFLDEF(FLNAME)
+#undef FLNAME
+  NULL
+};
+
+const char *const ircall_names[] = {
+#define IRCALLNAME(cond, name, nargs, kind, type, flags)	#name,
+IRCALLDEF(IRCALLNAME)
+#undef IRCALLNAME
+  NULL
+};
+
+static const char *const trace_errors[] = {
+#define TREDEF(name, msg)	msg,
+#include "lj_traceerr.h"
+  NULL
+};
+
+static const char *lower(char *buf, const char *s)
+{
+  char *p = buf;
+  while (*s) {
+    *p++ = (*s >= 'A' && *s <= 'Z') ? *s+0x20 : *s;
+    s++;
+  }
+  *p = '\0';
+  return buf;
+}
+
+/* Emit C source code for bytecode-related definitions. */
+static void emit_bcdef(BuildCtx *ctx)
+{
+  int i;
+  fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
+  fprintf(ctx->fp, "LJ_DATADEF const uint16_t lj_bc_ofs[] = {\n");
+  for (i = 0; i < ctx->npc; i++) {
+    if (i != 0)
+      fprintf(ctx->fp, ",\n");
+    fprintf(ctx->fp, "%d", ctx->bc_ofs[i]);
+  }
+}
+
+/* Emit VM definitions as Lua code for debug modules. */
+static void emit_vmdef(BuildCtx *ctx)
+{
+  char buf[80];
+  int i;
+  fprintf(ctx->fp, "-- This is a generated file. DO NOT EDIT!\n\n");
+  fprintf(ctx->fp, "module(...)\n\n");
+
+  fprintf(ctx->fp, "bcnames = \"");
+  for (i = 0; bc_names[i]; i++) fprintf(ctx->fp, "%-6s", bc_names[i]);
+  fprintf(ctx->fp, "\"\n\n");
+
+  fprintf(ctx->fp, "irnames = \"");
+  for (i = 0; ir_names[i]; i++) fprintf(ctx->fp, "%-6s", ir_names[i]);
+  fprintf(ctx->fp, "\"\n\n");
+
+  fprintf(ctx->fp, "irfpm = { [0]=");
+  for (i = 0; irfpm_names[i]; i++)
+    fprintf(ctx->fp, "\"%s\", ", lower(buf, irfpm_names[i]));
+  fprintf(ctx->fp, "}\n\n");
+
+  fprintf(ctx->fp, "irfield = { [0]=");
+  for (i = 0; irfield_names[i]; i++) {
+    char *p;
+    lower(buf, irfield_names[i]);
+    p = strchr(buf, '_');
+    if (p) *p = '.';
+    fprintf(ctx->fp, "\"%s\", ", buf);
+  }
+  fprintf(ctx->fp, "}\n\n");
+
+  fprintf(ctx->fp, "ircall = {\n[0]=");
+  for (i = 0; ircall_names[i]; i++)
+    fprintf(ctx->fp, "\"%s\",\n", ircall_names[i]);
+  fprintf(ctx->fp, "}\n\n");
+
+  fprintf(ctx->fp, "traceerr = {\n[0]=");
+  for (i = 0; trace_errors[i]; i++)
+    fprintf(ctx->fp, "\"%s\",\n", trace_errors[i]);
+  fprintf(ctx->fp, "}\n\n");
+}
+
+/* -- Argument parsing ---------------------------------------------------- */
+
+/* Build mode names. */
+static const char *const modenames[] = {
+#define BUILDNAME(name)		#name,
+BUILDDEF(BUILDNAME)
+#undef BUILDNAME
+  NULL
+};
+
+/* Print usage information and exit. */
+static void usage(void)
+{
+  int i;
+  fprintf(stderr, LUAJIT_VERSION " VM builder.\n");
+  fprintf(stderr, LUAJIT_COPYRIGHT ", " LUAJIT_URL "\n");
+  fprintf(stderr, "Target architecture: " LJ_ARCH_NAME "\n\n");
+  fprintf(stderr, "Usage: buildvm -m mode [-o outfile] [infiles...]\n\n");
+  fprintf(stderr, "Available modes:\n");
+  for (i = 0; i < BUILD__MAX; i++)
+    fprintf(stderr, "  %s\n", modenames[i]);
+  exit(1);
+}
+
+/* Parse the output mode name. */
+static BuildMode parsemode(const char *mode)
+{
+  int i;
+  for (i = 0; modenames[i]; i++)
+    if (!strcmp(mode, modenames[i]))
+      return (BuildMode)i;
+  usage();
+  return (BuildMode)-1;
+}
+
+/* Parse arguments. */
+static void parseargs(BuildCtx *ctx, char **argv)
+{
+  const char *a;
+  int i;
+  ctx->mode = (BuildMode)-1;
+  ctx->outname = "-";
+  for (i = 1; (a = argv[i]) != NULL; i++) {
+    if (a[0] != '-')
+      break;
+    switch (a[1]) {
+    case '-':
+      if (a[2]) goto err;
+      i++;
+      goto ok;
+    case '\0':
+      goto ok;
+    case 'm':
+      i++;
+      if (a[2] || argv[i] == NULL) goto err;
+      ctx->mode = parsemode(argv[i]);
+      break;
+    case 'o':
+      i++;
+      if (a[2] || argv[i] == NULL) goto err;
+      ctx->outname = argv[i];
+      break;
+    default: err:
+      usage();
+      break;
+    }
+  }
+ok:
+  ctx->args = argv+i;
+  if (ctx->mode == (BuildMode)-1) goto err;
+}
+
+int main(int argc, char **argv)
+{
+  BuildCtx ctx_;
+  BuildCtx *ctx = &ctx_;
+  int status, binmode;
+
+  if (sizeof(void *) != 4*LJ_32+8*LJ_64) {
+    fprintf(stderr,"Error: pointer size mismatch in cross-build.\n");
+    fprintf(stderr,"Try: make HOST_CC=\"gcc -m32\" CROSS=...\n\n");
+    return 1;
+  }
+
+  UNUSED(argc);
+  parseargs(ctx, argv);
+
+  if ((status = build_code(ctx))) {
+    fprintf(stderr,"Error: DASM error %08x\n", status);
+    return 1;
+  }
+
+  switch (ctx->mode) {
+  case BUILD_peobj:
+  case BUILD_raw:
+    binmode = 1;
+    break;
+  default:
+    binmode = 0;
+    break;
+  }
+
+  if (ctx->outname[0] == '-' && ctx->outname[1] == '\0') {
+    ctx->fp = stdout;
+#if defined(_WIN32)
+    if (binmode)
+      _setmode(_fileno(stdout), _O_BINARY);  /* Yuck. */
+#endif
+  } else if (!(ctx->fp = fopen(ctx->outname, binmode ? "wb" : "w"))) {
+    fprintf(stderr, "Error: cannot open output file '%s': %s\n",
+	    ctx->outname, strerror(errno));
+    exit(1);
+  }
+
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+  case BUILD_coffasm:
+  case BUILD_machasm:
+    emit_asm(ctx);
+    emit_asm_debug(ctx);
+    break;
+  case BUILD_peobj:
+    emit_peobj(ctx);
+    break;
+  case BUILD_raw:
+    emit_raw(ctx);
+    break;
+  case BUILD_bcdef:
+    emit_bcdef(ctx);
+    emit_lib(ctx);
+    break;
+  case BUILD_vmdef:
+    emit_vmdef(ctx);
+    emit_lib(ctx);
+    break;
+  case BUILD_ffdef:
+  case BUILD_libdef:
+  case BUILD_recdef:
+    emit_lib(ctx);
+    break;
+  case BUILD_folddef:
+    emit_fold(ctx);
+    break;
+  default:
+    break;
+  }
+
+  fflush(ctx->fp);
+  if (ferror(ctx->fp)) {
+    fprintf(stderr, "Error: cannot write to output file: %s\n",
+	    strerror(errno));
+    exit(1);
+  }
+  fclose(ctx->fp);
+
+  return 0;
+}
+
diff --git a/lib/luajit/src/host/buildvm.h b/lib/luajit/src/host/buildvm.h
new file mode 100644
index 00000000..f9dc8c4f
--- /dev/null
+++ b/lib/luajit/src/host/buildvm.h
@@ -0,0 +1,104 @@
+/*
+** LuaJIT VM builder.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _BUILDVM_H
+#define _BUILDVM_H
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* Hardcoded limits. Increase as needed. */
+#define BUILD_MAX_RELOC		200	/* Max. number of relocations. */
+#define BUILD_MAX_FOLD		4096	/* Max. number of fold rules. */
+
+/* Prefix for scanned library definitions. */
+#define LIBDEF_PREFIX		"LJLIB_"
+
+/* Prefix for scanned fold definitions. */
+#define FOLDDEF_PREFIX		"LJFOLD"
+
+/* Prefixes for generated labels. */
+#define LABEL_PREFIX		"lj_"
+#define LABEL_PREFIX_BC		LABEL_PREFIX "BC_"
+#define LABEL_PREFIX_FF		LABEL_PREFIX "ff_"
+#define LABEL_PREFIX_CF		LABEL_PREFIX "cf_"
+#define LABEL_PREFIX_FFH	LABEL_PREFIX "ffh_"
+#define LABEL_PREFIX_LIBCF	LABEL_PREFIX "lib_cf_"
+#define LABEL_PREFIX_LIBINIT	LABEL_PREFIX "lib_init_"
+
+/* Forward declaration. */
+struct dasm_State;
+
+/* Build modes. */
+#define BUILDDEF(_) \
+  _(elfasm) _(coffasm) _(machasm) _(peobj) _(raw) \
+  _(bcdef) _(ffdef) _(libdef) _(recdef) _(vmdef) \
+  _(folddef)
+
+typedef enum {
+#define BUILDENUM(name)		BUILD_##name,
+BUILDDEF(BUILDENUM)
+#undef BUILDENUM
+  BUILD__MAX
+} BuildMode;
+
+/* Code relocation. */
+typedef struct BuildReloc {
+  int32_t ofs;
+  int sym;
+  int type;
+} BuildReloc;
+
+typedef struct BuildSym {
+  const char *name;
+  int32_t ofs;
+} BuildSym;
+
+/* Build context structure. */
+typedef struct BuildCtx {
+  /* DynASM state pointer. Should be first member. */
+  struct dasm_State *D;
+  /* Parsed command line. */
+  BuildMode mode;
+  FILE *fp;
+  const char *outname;
+  char **args;
+  /* Code and symbols generated by DynASM. */
+  uint8_t *code;
+  size_t codesz;
+  int npc, nglob, nsym, nreloc, nrelocsym;
+  void **glob;
+  BuildSym *sym;
+  const char **relocsym;
+  int32_t *bc_ofs;
+  const char *beginsym;
+  /* Strings generated by DynASM. */
+  const char *const *globnames;
+  const char *dasm_ident;
+  const char *dasm_arch;
+  /* Relocations. */
+  BuildReloc reloc[BUILD_MAX_RELOC];
+} BuildCtx;
+
+extern void owrite(BuildCtx *ctx, const void *ptr, size_t sz);
+extern void emit_asm(BuildCtx *ctx);
+extern void emit_peobj(BuildCtx *ctx);
+extern void emit_lib(BuildCtx *ctx);
+extern void emit_fold(BuildCtx *ctx);
+
+extern const char *const bc_names[];
+extern const char *const ir_names[];
+extern const char *const irt_names[];
+extern const char *const irfpm_names[];
+extern const char *const irfield_names[];
+extern const char *const ircall_names[];
+
+#endif
diff --git a/lib/luajit/src/host/buildvm_asm.c b/lib/luajit/src/host/buildvm_asm.c
new file mode 100644
index 00000000..9b28b3b3
--- /dev/null
+++ b/lib/luajit/src/host/buildvm_asm.c
@@ -0,0 +1,313 @@
+/*
+** LuaJIT VM builder: Assembler source code emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "buildvm.h"
+#include "lj_bc.h"
+
+/* ------------------------------------------------------------------------ */
+
+#if LJ_TARGET_X86ORX64
+/* Emit bytes piecewise as assembler text. */
+static void emit_asm_bytes(BuildCtx *ctx, uint8_t *p, int n)
+{
+  int i;
+  for (i = 0; i < n; i++) {
+    if ((i & 15) == 0)
+      fprintf(ctx->fp, "\t.byte %d", p[i]);
+    else
+      fprintf(ctx->fp, ",%d", p[i]);
+    if ((i & 15) == 15) putc('\n', ctx->fp);
+  }
+  if ((n & 15) != 0) putc('\n', ctx->fp);
+}
+
+/* Emit relocation */
+static void emit_asm_reloc(BuildCtx *ctx, int type, const char *sym)
+{
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    if (type)
+      fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
+    else
+      fprintf(ctx->fp, "\t.long %s\n", sym);
+    break;
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", sym);
+    if (type)
+      fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
+    else
+      fprintf(ctx->fp, "\t.long %s\n", sym);
+    break;
+  default:  /* BUILD_machasm for relative relocations handled below. */
+    fprintf(ctx->fp, "\t.long %s\n", sym);
+    break;
+  }
+}
+
+static const char *const jccnames[] = {
+  "jo", "jno", "jb", "jnb", "jz", "jnz", "jbe", "ja",
+  "js", "jns", "jpe", "jpo", "jl", "jge", "jle", "jg"
+};
+
+/* Emit relocation for the incredibly stupid OSX assembler. */
+static void emit_asm_reloc_mach(BuildCtx *ctx, uint8_t *cp, int n,
+				const char *sym)
+{
+  const char *opname = NULL;
+  if (--n < 0) goto err;
+  if (cp[n] == 0xe8) {
+    opname = "call";
+  } else if (cp[n] == 0xe9) {
+    opname = "jmp";
+  } else if (cp[n] >= 0x80 && cp[n] <= 0x8f && n > 0 && cp[n-1] == 0x0f) {
+    opname = jccnames[cp[n]-0x80];
+    n--;
+  } else {
+err:
+    fprintf(stderr, "Error: unsupported opcode for %s symbol relocation.\n",
+	    sym);
+    exit(1);
+  }
+  emit_asm_bytes(ctx, cp, n);
+  fprintf(ctx->fp, "\t%s %s\n", opname, sym);
+}
+#else
+/* Emit words piecewise as assembler text. */
+static void emit_asm_words(BuildCtx *ctx, uint8_t *p, int n)
+{
+  int i;
+  for (i = 0; i < n; i += 4) {
+    if ((i & 15) == 0)
+      fprintf(ctx->fp, "\t.long 0x%08x", *(uint32_t *)(p+i));
+    else
+      fprintf(ctx->fp, ",0x%08x", *(uint32_t *)(p+i));
+    if ((i & 15) == 12) putc('\n', ctx->fp);
+  }
+  if ((n & 15) != 0) putc('\n', ctx->fp);
+}
+
+/* Emit relocation as part of an instruction. */
+static void emit_asm_wordreloc(BuildCtx *ctx, uint8_t *p, int n,
+			       const char *sym)
+{
+  uint32_t ins;
+  emit_asm_words(ctx, p, n-4);
+  ins = *(uint32_t *)(p+n-4);
+#if LJ_TARGET_ARM
+  if ((ins & 0xff000000u) == 0xfa000000u) {
+    fprintf(ctx->fp, "\tblx %s\n", sym);
+  } else if ((ins & 0x0e000000u) == 0x0a000000u) {
+    fprintf(ctx->fp, "\t%s%.2s %s\n", (ins & 0x01000000u) ? "bl" : "b",
+	    &"eqnecsccmiplvsvchilsgeltgtle"[2*(ins >> 28)], sym);
+  } else {
+    fprintf(stderr,
+	    "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	    ins, sym);
+    exit(1);
+  }
+#elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
+#if LJ_TARGET_PS3
+#define TOCPREFIX "."
+#else
+#define TOCPREFIX ""
+#endif
+  if ((ins >> 26) == 16) {
+    fprintf(ctx->fp, "\t%s %d, %d, " TOCPREFIX "%s\n",
+	    (ins & 1) ? "bcl" : "bc", (ins >> 21) & 31, (ins >> 16) & 31, sym);
+  } else if ((ins >> 26) == 18) {
+    fprintf(ctx->fp, "\t%s " TOCPREFIX "%s\n", (ins & 1) ? "bl" : "b", sym);
+  } else {
+    fprintf(stderr,
+	    "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	    ins, sym);
+    exit(1);
+  }
+#elif LJ_TARGET_MIPS
+  fprintf(stderr,
+	  "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	  ins, sym);
+  exit(1);
+#else
+#error "missing relocation support for this architecture"
+#endif
+}
+#endif
+
+#if LJ_TARGET_ARM
+#define ELFASM_PX	"%%"
+#else
+#define ELFASM_PX	"@"
+#endif
+
+/* Emit an assembler label. */
+static void emit_asm_label(BuildCtx *ctx, const char *name, int size, int isfunc)
+{
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+#if LJ_TARGET_PS3
+    if (!strncmp(name, "lj_vm_", 6) &&
+	strcmp(name, ctx->beginsym) &&
+	!strstr(name, "hook")) {
+      fprintf(ctx->fp,
+	"\n\t.globl %s\n"
+	"\t.section \".opd\",\"aw\"\n"
+	"%s:\n"
+	"\t.long .%s,.TOC.@tocbase32\n"
+	"\t.size %s,8\n"
+	"\t.previous\n"
+	"\t.globl .%s\n"
+	"\t.hidden .%s\n"
+	"\t.type .%s, " ELFASM_PX "function\n"
+	"\t.size .%s, %d\n"
+	".%s:\n",
+	name, name, name, name, name, name, name, name, size, name);
+      break;
+    }
+#endif
+    fprintf(ctx->fp,
+      "\n\t.globl %s\n"
+      "\t.hidden %s\n"
+      "\t.type %s, " ELFASM_PX "%s\n"
+      "\t.size %s, %d\n"
+      "%s:\n",
+      name, name, name, isfunc ? "function" : "object", name, size, name);
+    break;
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\n\t.globl %s\n", name);
+    if (isfunc)
+      fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", name);
+    fprintf(ctx->fp, "%s:\n", name);
+    break;
+  case BUILD_machasm:
+    fprintf(ctx->fp,
+      "\n\t.private_extern %s\n"
+      "%s:\n", name, name);
+    break;
+  default:
+    break;
+  }
+}
+
+/* Emit alignment. */
+static void emit_asm_align(BuildCtx *ctx, int bits)
+{
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\t.p2align %d\n", bits);
+    break;
+  case BUILD_machasm:
+    fprintf(ctx->fp, "\t.align %d\n", bits);
+    break;
+  default:
+    break;
+  }
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* Emit assembler source code. */
+void emit_asm(BuildCtx *ctx)
+{
+  int i, rel;
+
+  fprintf(ctx->fp, "\t.file \"buildvm_%s.dasc\"\n", ctx->dasm_arch);
+  fprintf(ctx->fp, "\t.text\n");
+  emit_asm_align(ctx, 4);
+
+#if LJ_TARGET_PS3
+  emit_asm_label(ctx, ctx->beginsym, ctx->codesz, 0);
+#else
+  emit_asm_label(ctx, ctx->beginsym, 0, 0);
+#endif
+  if (ctx->mode != BUILD_machasm)
+    fprintf(ctx->fp, ".Lbegin:\n");
+
+#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
+  /* This should really be moved into buildvm_arm.dasc. */
+  fprintf(ctx->fp,
+	  ".fnstart\n"
+	  ".save {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
+	  ".pad #28\n");
+#endif
+#if LJ_TARGET_MIPS
+  fprintf(ctx->fp, ".set nomips16\n.abicalls\n.set noreorder\n.set nomacro\n");
+#endif
+
+  for (i = rel = 0; i < ctx->nsym; i++) {
+    int32_t ofs = ctx->sym[i].ofs;
+    int32_t next = ctx->sym[i+1].ofs;
+#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND && LJ_HASFFI
+    if (!strcmp(ctx->sym[i].name, "lj_vm_ffi_call"))
+      fprintf(ctx->fp,
+	      ".globl lj_err_unwind_arm\n"
+	      ".personality lj_err_unwind_arm\n"
+	      ".fnend\n"
+	      ".fnstart\n"
+	      ".save {r4, r5, r11, lr}\n"
+	      ".setfp r11, sp\n");
+#endif
+    emit_asm_label(ctx, ctx->sym[i].name, next - ofs, 1);
+    while (rel < ctx->nreloc && ctx->reloc[rel].ofs <= next) {
+      BuildReloc *r = &ctx->reloc[rel];
+      int n = r->ofs - ofs;
+#if LJ_TARGET_X86ORX64
+      if (ctx->mode == BUILD_machasm && r->type != 0) {
+	emit_asm_reloc_mach(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
+      } else {
+	emit_asm_bytes(ctx, ctx->code+ofs, n);
+	emit_asm_reloc(ctx, r->type, ctx->relocsym[r->sym]);
+      }
+      ofs += n+4;
+#else
+      emit_asm_wordreloc(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
+      ofs += n;
+#endif
+      rel++;
+    }
+#if LJ_TARGET_X86ORX64
+    emit_asm_bytes(ctx, ctx->code+ofs, next-ofs);
+#else
+    emit_asm_words(ctx, ctx->code+ofs, next-ofs);
+#endif
+  }
+
+#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
+  fprintf(ctx->fp,
+#if !LJ_HASFFI
+	  ".globl lj_err_unwind_arm\n"
+	  ".personality lj_err_unwind_arm\n"
+#endif
+	  ".fnend\n");
+#endif
+
+  fprintf(ctx->fp, "\n");
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+#if !LJ_TARGET_PS3
+    fprintf(ctx->fp, "\t.section .note.GNU-stack,\"\"," ELFASM_PX "progbits\n");
+#endif
+#if LJ_TARGET_PPCSPE
+    /* Soft-float ABI + SPE. */
+    fprintf(ctx->fp, "\t.gnu_attribute 4, 2\n\t.gnu_attribute 8, 3\n");
+#elif LJ_TARGET_PPC && !LJ_TARGET_PS3
+    /* Hard-float ABI. */
+    fprintf(ctx->fp, "\t.gnu_attribute 4, 1\n");
+#endif
+    /* fallthrough */
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\t.ident \"%s\"\n", ctx->dasm_ident);
+    break;
+  case BUILD_machasm:
+    fprintf(ctx->fp,
+      "\t.cstring\n"
+      "\t.ascii \"%s\\0\"\n", ctx->dasm_ident);
+    break;
+  default:
+    break;
+  }
+  fprintf(ctx->fp, "\n");
+}
+
diff --git a/lib/luajit/src/host/buildvm_fold.c b/lib/luajit/src/host/buildvm_fold.c
new file mode 100644
index 00000000..7f5d9f2f
--- /dev/null
+++ b/lib/luajit/src/host/buildvm_fold.c
@@ -0,0 +1,229 @@
+/*
+** LuaJIT VM builder: IR folding hash table generator.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "buildvm.h"
+#include "lj_obj.h"
+#include "lj_ir.h"
+
+/* Context for the folding hash table generator. */
+static int lineno;
+static int funcidx;
+static uint32_t foldkeys[BUILD_MAX_FOLD];
+static uint32_t nkeys;
+
+/* Try to fill the hash table with keys using the hash parameters. */
+static int tryhash(uint32_t *htab, uint32_t sz, uint32_t r, int dorol)
+{
+  uint32_t i;
+  if (dorol && ((r & 31) == 0 || (r>>5) == 0))
+    return 0;  /* Avoid zero rotates. */
+  memset(htab, 0xff, (sz+1)*sizeof(uint32_t));
+  for (i = 0; i < nkeys; i++) {
+    uint32_t key = foldkeys[i];
+    uint32_t k = key & 0xffffff;
+    uint32_t h = (dorol ? lj_rol(lj_rol(k, r>>5) - k, r&31) :
+			  (((k << (r>>5)) - k) << (r&31))) % sz;
+    if (htab[h] != 0xffffffff) {  /* Collision on primary slot. */
+      if (htab[h+1] != 0xffffffff) {  /* Collision on secondary slot. */
+	/* Try to move the colliding key, if possible. */
+	if (h < sz-1 && htab[h+2] == 0xffffffff) {
+	  uint32_t k2 = htab[h+1] & 0xffffff;
+	  uint32_t h2 = (dorol ? lj_rol(lj_rol(k2, r>>5) - k2, r&31) :
+				 (((k2 << (r>>5)) - k2) << (r&31))) % sz;
+	  if (h2 != h+1) return 0;  /* Cannot resolve collision. */
+	  htab[h+2] = htab[h+1];  /* Move colliding key to secondary slot. */
+	} else {
+	  return 0;  /* Collision. */
+	}
+      }
+      htab[h+1] = key;
+    } else {
+      htab[h] = key;
+    }
+  }
+  return 1;  /* Success, all keys could be stored. */
+}
+
+/* Print the generated hash table. */
+static void printhash(BuildCtx *ctx, uint32_t *htab, uint32_t sz)
+{
+  uint32_t i;
+  fprintf(ctx->fp, "static const uint32_t fold_hash[%d] = {\n0x%08x",
+	  sz+1, htab[0]);
+  for (i = 1; i < sz+1; i++)
+    fprintf(ctx->fp, ",\n0x%08x", htab[i]);
+  fprintf(ctx->fp, "\n};\n\n");
+}
+
+/* Exhaustive search for the shortest semi-perfect hash table. */
+static void makehash(BuildCtx *ctx)
+{
+  uint32_t htab[BUILD_MAX_FOLD*2+1];
+  uint32_t sz, r;
+  /* Search for the smallest hash table with an odd size. */
+  for (sz = (nkeys|1); sz < BUILD_MAX_FOLD*2; sz += 2) {
+    /* First try all shift hash combinations. */
+    for (r = 0; r < 32*32; r++) {
+      if (tryhash(htab, sz, r, 0)) {
+	printhash(ctx, htab, sz);
+	fprintf(ctx->fp,
+		"#define fold_hashkey(k)\t(((((k)<<%u)-(k))<<%u)%%%u)\n\n",
+		r>>5, r&31, sz);
+	return;
+      }
+    }
+    /* Then try all rotate hash combinations. */
+    for (r = 0; r < 32*32; r++) {
+      if (tryhash(htab, sz, r, 1)) {
+	printhash(ctx, htab, sz);
+	fprintf(ctx->fp,
+	  "#define fold_hashkey(k)\t(lj_rol(lj_rol((k),%u)-(k),%u)%%%u)\n\n",
+		r>>5, r&31, sz);
+	return;
+      }
+    }
+  }
+  fprintf(stderr, "Error: search for perfect hash failed\n");
+  exit(1);
+}
+
+/* Parse one token of a fold rule. */
+static uint32_t nexttoken(char **pp, int allowlit, int allowany)
+{
+  char *p = *pp;
+  if (p) {
+    uint32_t i;
+    char *q = strchr(p, ' ');
+    if (q) *q++ = '\0';
+    *pp = q;
+    if (allowlit && !strncmp(p, "IRFPM_", 6)) {
+      for (i = 0; irfpm_names[i]; i++)
+	if (!strcmp(irfpm_names[i], p+6))
+	  return i;
+    } else if (allowlit && !strncmp(p, "IRFL_", 5)) {
+      for (i = 0; irfield_names[i]; i++)
+	if (!strcmp(irfield_names[i], p+5))
+	  return i;
+    } else if (allowlit && !strncmp(p, "IRCALL_", 7)) {
+      for (i = 0; ircall_names[i]; i++)
+	if (!strcmp(ircall_names[i], p+7))
+	  return i;
+    } else if (allowlit && !strncmp(p, "IRCONV_", 7)) {
+      for (i = 0; irt_names[i]; i++) {
+	const char *r = strchr(p+7, '_');
+	if (r && !strncmp(irt_names[i], p+7, r-(p+7))) {
+	  uint32_t j;
+	  for (j = 0; irt_names[j]; j++)
+	    if (!strcmp(irt_names[j], r+1))
+	      return (i << 5) + j;
+	}
+      }
+    } else if (allowlit && *p >= '0' && *p <= '9') {
+      for (i = 0; *p >= '0' && *p <= '9'; p++)
+	i = i*10 + (*p - '0');
+      if (*p == '\0')
+	return i;
+    } else if (allowany && !strcmp("any", p)) {
+      return allowany;
+    } else {
+      for (i = 0; ir_names[i]; i++)
+	if (!strcmp(ir_names[i], p))
+	  return i;
+    }
+    fprintf(stderr, "Error: bad fold definition token \"%s\" at line %d\n", p, lineno);
+    exit(1);
+  }
+  return 0;
+}
+
+/* Parse a fold rule. */
+static void foldrule(char *p)
+{
+  uint32_t op = nexttoken(&p, 0, 0);
+  uint32_t left = nexttoken(&p, 0, 0x7f);
+  uint32_t right = nexttoken(&p, 1, 0x3ff);
+  uint32_t key = (funcidx << 24) | (op << 17) | (left << 10) | right;
+  uint32_t i;
+  if (nkeys >= BUILD_MAX_FOLD) {
+    fprintf(stderr, "Error: too many fold rules, increase BUILD_MAX_FOLD.\n");
+    exit(1);
+  }
+  /* Simple insertion sort to detect duplicates. */
+  for (i = nkeys; i > 0; i--) {
+    if ((foldkeys[i-1]&0xffffff) < (key & 0xffffff))
+      break;
+    if ((foldkeys[i-1]&0xffffff) == (key & 0xffffff)) {
+      fprintf(stderr, "Error: duplicate fold definition at line %d\n", lineno);
+      exit(1);
+    }
+    foldkeys[i] = foldkeys[i-1];
+  }
+  foldkeys[i] = key;
+  nkeys++;
+}
+
+/* Emit C source code for IR folding hash table. */
+void emit_fold(BuildCtx *ctx)
+{
+  char buf[256];  /* We don't care about analyzing lines longer than that. */
+  const char *fname = ctx->args[0];
+  FILE *fp;
+
+  if (fname == NULL) {
+    fprintf(stderr, "Error: missing input filename\n");
+    exit(1);
+  }
+
+  if (fname[0] == '-' && fname[1] == '\0') {
+    fp = stdin;
+  } else {
+    fp = fopen(fname, "r");
+    if (!fp) {
+      fprintf(stderr, "Error: cannot open input file '%s': %s\n",
+	      fname, strerror(errno));
+      exit(1);
+    }
+  }
+
+  fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
+  fprintf(ctx->fp, "static const FoldFunc fold_func[] = {\n");
+
+  lineno = 0;
+  funcidx = 0;
+  nkeys = 0;
+  while (fgets(buf, sizeof(buf), fp) != NULL) {
+    lineno++;
+    /* The prefix must be at the start of a line, otherwise it's ignored. */
+    if (!strncmp(buf, FOLDDEF_PREFIX, sizeof(FOLDDEF_PREFIX)-1)) {
+      char *p = buf+sizeof(FOLDDEF_PREFIX)-1;
+      char *q = strchr(p, ')');
+      if (p[0] == '(' && q) {
+	p++;
+	*q = '\0';
+	foldrule(p);
+      } else if ((p[0] == 'F' || p[0] == 'X') && p[1] == '(' && q) {
+	p += 2;
+	*q = '\0';
+	if (funcidx)
+	  fprintf(ctx->fp, ",\n");
+	if (p[-2] == 'X')
+	  fprintf(ctx->fp, "  %s", p);
+	else
+	  fprintf(ctx->fp, "  fold_%s", p);
+	funcidx++;
+      } else {
+	buf[strlen(buf)-1] = '\0';
+	fprintf(stderr, "Error: unknown fold definition tag %s%s at line %d\n",
+		FOLDDEF_PREFIX, p, lineno);
+	exit(1);
+      }
+    }
+  }
+  fclose(fp);
+  fprintf(ctx->fp, "\n};\n\n");
+
+  makehash(ctx);
+}
+
diff --git a/lib/luajit/src/host/buildvm_lib.c b/lib/luajit/src/host/buildvm_lib.c
new file mode 100644
index 00000000..eafdab98
--- /dev/null
+++ b/lib/luajit/src/host/buildvm_lib.c
@@ -0,0 +1,398 @@
+/*
+** LuaJIT VM builder: library definition compiler.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "buildvm.h"
+#include "lj_obj.h"
+#include "lj_lib.h"
+
+/* Context for library definitions. */
+static uint8_t obuf[8192];
+static uint8_t *optr;
+static char modname[80];
+static size_t modnamelen;
+static char funcname[80];
+static int modstate, regfunc;
+static int ffid, recffid, ffasmfunc;
+
+enum {
+  REGFUNC_OK,
+  REGFUNC_NOREG,
+  REGFUNC_NOREGUV
+};
+
+static void libdef_name(const char *p, int kind)
+{
+  size_t n = strlen(p);
+  if (kind != LIBINIT_STRING) {
+    if (n > modnamelen && p[modnamelen] == '_' &&
+	!strncmp(p, modname, modnamelen)) {
+      p += modnamelen+1;
+      n -= modnamelen+1;
+    }
+  }
+  if (n > LIBINIT_MAXSTR) {
+    fprintf(stderr, "Error: string too long: '%s'\n",  p);
+    exit(1);
+  }
+  if (optr+1+n+2 > obuf+sizeof(obuf)) {  /* +2 for caller. */
+    fprintf(stderr, "Error: output buffer overflow\n");
+    exit(1);
+  }
+  *optr++ = (uint8_t)(n | kind);
+  memcpy(optr, p, n);
+  optr += n;
+}
+
+static void libdef_endmodule(BuildCtx *ctx)
+{
+  if (modstate != 0) {
+    char line[80];
+    const uint8_t *p;
+    int n;
+    if (modstate == 1)
+      fprintf(ctx->fp, "  (lua_CFunction)0");
+    fprintf(ctx->fp, "\n};\n");
+    fprintf(ctx->fp, "static const uint8_t %s%s[] = {\n",
+	    LABEL_PREFIX_LIBINIT, modname);
+    line[0] = '\0';
+    for (n = 0, p = obuf; p < optr; p++) {
+      n += sprintf(line+n, "%d,", *p);
+      if (n >= 75) {
+	fprintf(ctx->fp, "%s\n", line);
+	n = 0;
+	line[0] = '\0';
+      }
+    }
+    fprintf(ctx->fp, "%s%d\n};\n#endif\n\n", line, LIBINIT_END);
+  }
+}
+
+static void libdef_module(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    libdef_endmodule(ctx);
+    optr = obuf;
+    *optr++ = (uint8_t)ffid;
+    *optr++ = (uint8_t)ffasmfunc;
+    *optr++ = 0;  /* Hash table size. */
+    modstate = 1;
+    fprintf(ctx->fp, "#ifdef %sMODULE_%s\n", LIBDEF_PREFIX, p);
+    fprintf(ctx->fp, "#undef %sMODULE_%s\n", LIBDEF_PREFIX, p);
+    fprintf(ctx->fp, "static const lua_CFunction %s%s[] = {\n",
+	    LABEL_PREFIX_LIBCF, p);
+  }
+  modnamelen = strlen(p);
+  if (modnamelen > sizeof(modname)-1) {
+    fprintf(stderr, "Error: module name too long: '%s'\n", p);
+    exit(1);
+  }
+  strcpy(modname, p);
+}
+
+static int find_ffofs(BuildCtx *ctx, const char *name)
+{
+  int i;
+  for (i = 0; i < ctx->nglob; i++) {
+    const char *gl = ctx->globnames[i];
+    if (gl[0] == 'f' && gl[1] == 'f' && gl[2] == '_' && !strcmp(gl+3, name)) {
+      return (int)((uint8_t *)ctx->glob[i] - ctx->code);
+    }
+  }
+  fprintf(stderr, "Error: undefined fast function %s%s\n",
+	  LABEL_PREFIX_FF, name);
+  exit(1);
+}
+
+static void libdef_func(BuildCtx *ctx, char *p, int arg)
+{
+  if (arg != LIBINIT_CF)
+    ffasmfunc++;
+  if (ctx->mode == BUILD_libdef) {
+    if (modstate == 0) {
+      fprintf(stderr, "Error: no module for function definition %s\n", p);
+      exit(1);
+    }
+    if (regfunc == REGFUNC_NOREG) {
+      if (optr+1 > obuf+sizeof(obuf)) {
+	fprintf(stderr, "Error: output buffer overflow\n");
+	exit(1);
+      }
+      *optr++ = LIBINIT_FFID;
+    } else {
+      if (arg != LIBINIT_ASM_) {
+	if (modstate != 1) fprintf(ctx->fp, ",\n");
+	modstate = 2;
+	fprintf(ctx->fp, "  %s%s", arg ? LABEL_PREFIX_FFH : LABEL_PREFIX_CF, p);
+      }
+      if (regfunc != REGFUNC_NOREGUV) obuf[2]++;  /* Bump hash table size. */
+      libdef_name(regfunc == REGFUNC_NOREGUV ? "" : p, arg);
+    }
+  } else if (ctx->mode == BUILD_ffdef) {
+    fprintf(ctx->fp, "FFDEF(%s)\n", p);
+  } else if (ctx->mode == BUILD_recdef) {
+    if (strlen(p) > sizeof(funcname)-1) {
+      fprintf(stderr, "Error: function name too long: '%s'\n", p);
+      exit(1);
+    }
+    strcpy(funcname, p);
+  } else if (ctx->mode == BUILD_vmdef) {
+    int i;
+    for (i = 1; p[i] && modname[i-1]; i++)
+      if (p[i] == '_') p[i] = '.';
+    fprintf(ctx->fp, "\"%s\",\n", p);
+  } else if (ctx->mode == BUILD_bcdef) {
+    if (arg != LIBINIT_CF)
+      fprintf(ctx->fp, ",\n%d", find_ffofs(ctx, p));
+  }
+  ffid++;
+  regfunc = REGFUNC_OK;
+}
+
+static uint32_t find_rec(char *name)
+{
+  char *p = (char *)obuf;
+  uint32_t n;
+  for (n = 2; *p; n++) {
+    if (strcmp(p, name) == 0)
+      return n;
+    p += strlen(p)+1;
+  }
+  if (p+strlen(name)+1 >= (char *)obuf+sizeof(obuf)) {
+    fprintf(stderr, "Error: output buffer overflow\n");
+    exit(1);
+  }
+  strcpy(p, name);
+  return n;
+}
+
+static void libdef_rec(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_recdef) {
+    char *q;
+    uint32_t n;
+    for (; recffid+1 < ffid; recffid++)
+      fprintf(ctx->fp, ",\n0");
+    recffid = ffid;
+    if (*p == '.') p = funcname;
+    q = strchr(p, ' ');
+    if (q) *q++ = '\0';
+    n = find_rec(p);
+    if (q)
+      fprintf(ctx->fp, ",\n0x%02x00+(%s)", n, q);
+    else
+      fprintf(ctx->fp, ",\n0x%02x00", n);
+  }
+}
+
+static void memcpy_endian(void *dst, void *src, size_t n)
+{
+  union { uint8_t b; uint32_t u; } host_endian;
+  host_endian.u = 1;
+  if (host_endian.b == LJ_ENDIAN_SELECT(1, 0)) {
+    memcpy(dst, src, n);
+  } else {
+    size_t i;
+    for (i = 0; i < n; i++)
+      ((uint8_t *)dst)[i] = ((uint8_t *)src)[n-i-1];
+  }
+}
+
+static void libdef_push(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    int len = (int)strlen(p);
+    if (*p == '"') {
+      if (len > 1 && p[len-1] == '"') {
+	p[len-1] = '\0';
+	libdef_name(p+1, LIBINIT_STRING);
+	return;
+      }
+    } else if (*p >= '0' && *p <= '9') {
+      char *ep;
+      double d = strtod(p, &ep);
+      if (*ep == '\0') {
+	if (optr+1+sizeof(double) > obuf+sizeof(obuf)) {
+	  fprintf(stderr, "Error: output buffer overflow\n");
+	  exit(1);
+	}
+	*optr++ = LIBINIT_NUMBER;
+	memcpy_endian(optr, &d, sizeof(double));
+	optr += sizeof(double);
+	return;
+      }
+    } else if (!strcmp(p, "lastcl")) {
+      if (optr+1 > obuf+sizeof(obuf)) {
+	fprintf(stderr, "Error: output buffer overflow\n");
+	exit(1);
+      }
+      *optr++ = LIBINIT_LASTCL;
+      return;
+    } else if (len > 4 && !strncmp(p, "top-", 4)) {
+      if (optr+2 > obuf+sizeof(obuf)) {
+	fprintf(stderr, "Error: output buffer overflow\n");
+	exit(1);
+      }
+      *optr++ = LIBINIT_COPY;
+      *optr++ = (uint8_t)atoi(p+4);
+      return;
+    }
+    fprintf(stderr, "Error: bad value for %sPUSH(%s)\n", LIBDEF_PREFIX, p);
+    exit(1);
+  }
+}
+
+static void libdef_set(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    if (p[0] == '!' && p[1] == '\0') p[0] = '\0';  /* Set env. */
+    libdef_name(p, LIBINIT_STRING);
+    *optr++ = LIBINIT_SET;
+    obuf[2]++;  /* Bump hash table size. */
+  }
+}
+
+static void libdef_regfunc(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(ctx); UNUSED(p);
+  regfunc = arg;
+}
+
+typedef void (*LibDefFunc)(BuildCtx *ctx, char *p, int arg);
+
+typedef struct LibDefHandler {
+  const char *suffix;
+  const char *stop;
+  const LibDefFunc func;
+  const int arg;
+} LibDefHandler;
+
+static const LibDefHandler libdef_handlers[] = {
+  { "MODULE_",	" \t\r\n",	libdef_module,		0 },
+  { "CF(",	")",		libdef_func,		LIBINIT_CF },
+  { "ASM(",	")",		libdef_func,		LIBINIT_ASM },
+  { "ASM_(",	")",		libdef_func,		LIBINIT_ASM_ },
+  { "REC(",	")",		libdef_rec,		0 },
+  { "PUSH(",	")",		libdef_push,		0 },
+  { "SET(",	")",		libdef_set,		0 },
+  { "NOREGUV",	NULL,		libdef_regfunc,		REGFUNC_NOREGUV },
+  { "NOREG",	NULL,		libdef_regfunc,		REGFUNC_NOREG },
+  { NULL,	NULL,		(LibDefFunc)0,		0 }
+};
+
+/* Emit C source code for library function definitions. */
+void emit_lib(BuildCtx *ctx)
+{
+  const char *fname;
+
+  if (ctx->mode == BUILD_ffdef || ctx->mode == BUILD_libdef ||
+      ctx->mode == BUILD_recdef)
+    fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
+  else if (ctx->mode == BUILD_vmdef)
+    fprintf(ctx->fp, "ffnames = {\n[0]=\"Lua\",\n\"C\",\n");
+  if (ctx->mode == BUILD_recdef)
+    fprintf(ctx->fp, "static const uint16_t recff_idmap[] = {\n0,\n0x0100");
+  recffid = ffid = FF_C+1;
+  ffasmfunc = 0;
+
+  while ((fname = *ctx->args++)) {
+    char buf[256];  /* We don't care about analyzing lines longer than that. */
+    FILE *fp;
+    if (fname[0] == '-' && fname[1] == '\0') {
+      fp = stdin;
+    } else {
+      fp = fopen(fname, "r");
+      if (!fp) {
+	fprintf(stderr, "Error: cannot open input file '%s': %s\n",
+		fname, strerror(errno));
+	exit(1);
+      }
+    }
+    modstate = 0;
+    regfunc = REGFUNC_OK;
+    while (fgets(buf, sizeof(buf), fp) != NULL) {
+      char *p;
+      /* Simplistic pre-processor. Only handles top-level #if/#endif. */
+      if (buf[0] == '#' && buf[1] == 'i' && buf[2] == 'f') {
+	int ok = 1;
+	if (!strcmp(buf, "#if LJ_52\n"))
+	  ok = LJ_52;
+	else if (!strcmp(buf, "#if LJ_HASJIT\n"))
+	  ok = LJ_HASJIT;
+	else if (!strcmp(buf, "#if LJ_HASFFI\n"))
+	  ok = LJ_HASFFI;
+	if (!ok) {
+	  int lvl = 1;
+	  while (fgets(buf, sizeof(buf), fp) != NULL) {
+	    if (buf[0] == '#' && buf[1] == 'e' && buf[2] == 'n') {
+	      if (--lvl == 0) break;
+	    } else if (buf[0] == '#' && buf[1] == 'i' && buf[2] == 'f') {
+	      lvl++;
+	    }
+	  }
+	  continue;
+	}
+      }
+      for (p = buf; (p = strstr(p, LIBDEF_PREFIX)) != NULL; ) {
+	const LibDefHandler *ldh;
+	p += sizeof(LIBDEF_PREFIX)-1;
+	for (ldh = libdef_handlers; ldh->suffix != NULL; ldh++) {
+	  size_t n, len = strlen(ldh->suffix);
+	  if (!strncmp(p, ldh->suffix, len)) {
+	    p += len;
+	    n = ldh->stop ? strcspn(p, ldh->stop) : 0;
+	    if (!p[n]) break;
+	    p[n] = '\0';
+	    ldh->func(ctx, p, ldh->arg);
+	    p += n+1;
+	    break;
+	  }
+	}
+	if (ldh->suffix == NULL) {
+	  buf[strlen(buf)-1] = '\0';
+	  fprintf(stderr, "Error: unknown library definition tag %s%s\n",
+		  LIBDEF_PREFIX, p);
+	  exit(1);
+	}
+      }
+    }
+    fclose(fp);
+    if (ctx->mode == BUILD_libdef) {
+      libdef_endmodule(ctx);
+    }
+  }
+
+  if (ctx->mode == BUILD_ffdef) {
+    fprintf(ctx->fp, "\n#undef FFDEF\n\n");
+    fprintf(ctx->fp,
+      "#ifndef FF_NUM_ASMFUNC\n#define FF_NUM_ASMFUNC %d\n#endif\n\n",
+      ffasmfunc);
+  } else if (ctx->mode == BUILD_vmdef) {
+    fprintf(ctx->fp, "}\n\n");
+  } else if (ctx->mode == BUILD_bcdef) {
+    int i;
+    fprintf(ctx->fp, "\n};\n\n");
+    fprintf(ctx->fp, "LJ_DATADEF const uint16_t lj_bc_mode[] = {\n");
+    fprintf(ctx->fp, "BCDEF(BCMODE)\n");
+    for (i = ffasmfunc-1; i > 0; i--)
+      fprintf(ctx->fp, "BCMODE_FF,\n");
+    fprintf(ctx->fp, "BCMODE_FF\n};\n\n");
+  } else if (ctx->mode == BUILD_recdef) {
+    char *p = (char *)obuf;
+    fprintf(ctx->fp, "\n};\n\n");
+    fprintf(ctx->fp, "static const RecordFunc recff_func[] = {\n"
+	    "recff_nyi,\n"
+	    "recff_c");
+    while (*p) {
+      fprintf(ctx->fp, ",\nrecff_%s", p);
+      p += strlen(p)+1;
+    }
+    fprintf(ctx->fp, "\n};\n\n");
+  }
+}
+
diff --git a/lib/luajit/src/host/buildvm_peobj.c b/lib/luajit/src/host/buildvm_peobj.c
new file mode 100644
index 00000000..138b0423
--- /dev/null
+++ b/lib/luajit/src/host/buildvm_peobj.c
@@ -0,0 +1,368 @@
+/*
+** LuaJIT VM builder: PE object emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Only used for building on Windows, since we cannot assume the presence
+** of a suitable assembler. The host and target byte order must match.
+*/
+
+#include "buildvm.h"
+#include "lj_bc.h"
+
+#if LJ_TARGET_X86ORX64 || LJ_TARGET_PPC
+
+/* Context for PE object emitter. */
+static char *strtab;
+static size_t strtabofs;
+
+/* -- PE object definitions ----------------------------------------------- */
+
+/* PE header. */
+typedef struct PEheader {
+  uint16_t arch;
+  uint16_t nsects;
+  uint32_t time;
+  uint32_t symtabofs;
+  uint32_t nsyms;
+  uint16_t opthdrsz;
+  uint16_t flags;
+} PEheader;
+
+/* PE section. */
+typedef struct PEsection {
+  char name[8];
+  uint32_t vsize;
+  uint32_t vaddr;
+  uint32_t size;
+  uint32_t ofs;
+  uint32_t relocofs;
+  uint32_t lineofs;
+  uint16_t nreloc;
+  uint16_t nline;
+  uint32_t flags;
+} PEsection;
+
+/* PE relocation. */
+typedef struct PEreloc {
+  uint32_t vaddr;
+  uint32_t symidx;
+  uint16_t type;
+} PEreloc;
+
+/* Cannot use sizeof, because it pads up to the max. alignment. */
+#define PEOBJ_RELOC_SIZE	(4+4+2)
+
+/* PE symbol table entry. */
+typedef struct PEsym {
+  union {
+    char name[8];
+    uint32_t nameref[2];
+  } n;
+  uint32_t value;
+  int16_t sect;
+  uint16_t type;
+  uint8_t scl;
+  uint8_t naux;
+} PEsym;
+
+/* PE symbol table auxiliary entry for a section. */
+typedef struct PEsymaux {
+  uint32_t size;
+  uint16_t nreloc;
+  uint16_t nline;
+  uint32_t cksum;
+  uint16_t assoc;
+  uint8_t comdatsel;
+  uint8_t unused[3];
+} PEsymaux;
+
+/* Cannot use sizeof, because it pads up to the max. alignment. */
+#define PEOBJ_SYM_SIZE	(8+4+2+2+1+1)
+
+/* PE object CPU specific defines. */
+#if LJ_TARGET_X86
+#define PEOBJ_ARCH_TARGET	0x014c
+#define PEOBJ_RELOC_REL32	0x14  /* MS: REL32, GNU: DISP32. */
+#define PEOBJ_RELOC_DIR32	0x06
+#define PEOBJ_RELOC_OFS		0
+#define PEOBJ_TEXT_FLAGS	0x60500020  /* 60=r+x, 50=align16, 20=code. */
+#elif LJ_TARGET_X64
+#define PEOBJ_ARCH_TARGET	0x8664
+#define PEOBJ_RELOC_REL32	0x04  /* MS: REL32, GNU: DISP32. */
+#define PEOBJ_RELOC_DIR32	0x02
+#define PEOBJ_RELOC_ADDR32NB	0x03
+#define PEOBJ_RELOC_OFS		0
+#define PEOBJ_TEXT_FLAGS	0x60500020  /* 60=r+x, 50=align16, 20=code. */
+#elif LJ_TARGET_PPC
+#define PEOBJ_ARCH_TARGET	0x01f2
+#define PEOBJ_RELOC_REL32	0x06
+#define PEOBJ_RELOC_DIR32	0x02
+#define PEOBJ_RELOC_OFS		(-4)
+#define PEOBJ_TEXT_FLAGS	0x60400020  /* 60=r+x, 40=align8, 20=code. */
+#endif
+
+/* Section numbers (0-based). */
+enum {
+  PEOBJ_SECT_ABS = -2,
+  PEOBJ_SECT_UNDEF = -1,
+  PEOBJ_SECT_TEXT,
+#if LJ_TARGET_X64
+  PEOBJ_SECT_PDATA,
+  PEOBJ_SECT_XDATA,
+#endif
+  PEOBJ_SECT_RDATA_Z,
+  PEOBJ_NSECTIONS
+};
+
+/* Symbol types. */
+#define PEOBJ_TYPE_NULL		0
+#define PEOBJ_TYPE_FUNC		0x20
+
+/* Symbol storage class. */
+#define PEOBJ_SCL_EXTERN	2
+#define PEOBJ_SCL_STATIC	3
+
+/* -- PE object emitter --------------------------------------------------- */
+
+/* Emit PE object symbol. */
+static void emit_peobj_sym(BuildCtx *ctx, const char *name, uint32_t value,
+			   int sect, int type, int scl)
+{
+  PEsym sym;
+  size_t len = strlen(name);
+  if (!strtab) {  /* Pass 1: only calculate string table length. */
+    if (len > 8) strtabofs += len+1;
+    return;
+  }
+  if (len <= 8) {
+    memcpy(sym.n.name, name, len);
+    memset(sym.n.name+len, 0, 8-len);
+  } else {
+    sym.n.nameref[0] = 0;
+    sym.n.nameref[1] = (uint32_t)strtabofs;
+    memcpy(strtab + strtabofs, name, len);
+    strtab[strtabofs+len] = 0;
+    strtabofs += len+1;
+  }
+  sym.value = value;
+  sym.sect = (int16_t)(sect+1);  /* 1-based section number. */
+  sym.type = (uint16_t)type;
+  sym.scl = (uint8_t)scl;
+  sym.naux = 0;
+  owrite(ctx, &sym, PEOBJ_SYM_SIZE);
+}
+
+/* Emit PE object section symbol. */
+static void emit_peobj_sym_sect(BuildCtx *ctx, PEsection *pesect, int sect)
+{
+  PEsym sym;
+  PEsymaux aux;
+  if (!strtab) return;  /* Pass 1: no output. */
+  memcpy(sym.n.name, pesect[sect].name, 8);
+  sym.value = 0;
+  sym.sect = (int16_t)(sect+1);  /* 1-based section number. */
+  sym.type = PEOBJ_TYPE_NULL;
+  sym.scl = PEOBJ_SCL_STATIC;
+  sym.naux = 1;
+  owrite(ctx, &sym, PEOBJ_SYM_SIZE);
+  memset(&aux, 0, sizeof(PEsymaux));
+  aux.size = pesect[sect].size;
+  aux.nreloc = pesect[sect].nreloc;
+  owrite(ctx, &aux, PEOBJ_SYM_SIZE);
+}
+
+/* Emit Windows PE object file. */
+void emit_peobj(BuildCtx *ctx)
+{
+  PEheader pehdr;
+  PEsection pesect[PEOBJ_NSECTIONS];
+  uint32_t sofs;
+  int i, nrsym;
+  union { uint8_t b; uint32_t u; } host_endian;
+
+  sofs = sizeof(PEheader) + PEOBJ_NSECTIONS*sizeof(PEsection);
+
+  /* Fill in PE sections. */
+  memset(&pesect, 0, PEOBJ_NSECTIONS*sizeof(PEsection));
+  memcpy(pesect[PEOBJ_SECT_TEXT].name, ".text", sizeof(".text")-1);
+  pesect[PEOBJ_SECT_TEXT].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_TEXT].size = (uint32_t)ctx->codesz);
+  pesect[PEOBJ_SECT_TEXT].relocofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_TEXT].nreloc = (uint16_t)ctx->nreloc) * PEOBJ_RELOC_SIZE;
+  /* Flags: 60 = read+execute, 50 = align16, 20 = code. */
+  pesect[PEOBJ_SECT_TEXT].flags = PEOBJ_TEXT_FLAGS;
+
+#if LJ_TARGET_X64
+  memcpy(pesect[PEOBJ_SECT_PDATA].name, ".pdata", sizeof(".pdata")-1);
+  pesect[PEOBJ_SECT_PDATA].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_PDATA].size = 6*4);
+  pesect[PEOBJ_SECT_PDATA].relocofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_PDATA].nreloc = 6) * PEOBJ_RELOC_SIZE;
+  /* Flags: 40 = read, 30 = align4, 40 = initialized data. */
+  pesect[PEOBJ_SECT_PDATA].flags = 0x40300040;
+
+  memcpy(pesect[PEOBJ_SECT_XDATA].name, ".xdata", sizeof(".xdata")-1);
+  pesect[PEOBJ_SECT_XDATA].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_XDATA].size = 8*2+4+6*2);  /* See below. */
+  pesect[PEOBJ_SECT_XDATA].relocofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_XDATA].nreloc = 1) * PEOBJ_RELOC_SIZE;
+  /* Flags: 40 = read, 30 = align4, 40 = initialized data. */
+  pesect[PEOBJ_SECT_XDATA].flags = 0x40300040;
+#endif
+
+  memcpy(pesect[PEOBJ_SECT_RDATA_Z].name, ".rdata$Z", sizeof(".rdata$Z")-1);
+  pesect[PEOBJ_SECT_RDATA_Z].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_RDATA_Z].size = (uint32_t)strlen(ctx->dasm_ident)+1);
+  /* Flags: 40 = read, 30 = align4, 40 = initialized data. */
+  pesect[PEOBJ_SECT_RDATA_Z].flags = 0x40300040;
+
+  /* Fill in PE header. */
+  pehdr.arch = PEOBJ_ARCH_TARGET;
+  pehdr.nsects = PEOBJ_NSECTIONS;
+  pehdr.time = 0;  /* Timestamp is optional. */
+  pehdr.symtabofs = sofs;
+  pehdr.opthdrsz = 0;
+  pehdr.flags = 0;
+
+  /* Compute the size of the symbol table:
+  ** @feat.00 + nsections*2
+  ** + asm_start + nsym
+  ** + nrsym
+  */
+  nrsym = ctx->nrelocsym;
+  pehdr.nsyms = 1+PEOBJ_NSECTIONS*2 + 1+ctx->nsym + nrsym;
+#if LJ_TARGET_X64
+  pehdr.nsyms += 1;  /* Symbol for lj_err_unwind_win64. */
+#endif
+
+  /* Write PE object header and all sections. */
+  owrite(ctx, &pehdr, sizeof(PEheader));
+  owrite(ctx, &pesect, sizeof(PEsection)*PEOBJ_NSECTIONS);
+
+  /* Write .text section. */
+  host_endian.u = 1;
+  if (host_endian.b != LJ_ENDIAN_SELECT(1, 0)) {
+#if LJ_TARGET_PPC
+    uint32_t *p = (uint32_t *)ctx->code;
+    int n = (int)(ctx->codesz >> 2);
+    for (i = 0; i < n; i++, p++)
+      *p = lj_bswap(*p);  /* Byteswap .text section. */
+#else
+    fprintf(stderr, "Error: different byte order for host and target\n");
+    exit(1);
+#endif
+  }
+  owrite(ctx, ctx->code, ctx->codesz);
+  for (i = 0; i < ctx->nreloc; i++) {
+    PEreloc reloc;
+    reloc.vaddr = (uint32_t)ctx->reloc[i].ofs + PEOBJ_RELOC_OFS;
+    reloc.symidx = 1+2+ctx->reloc[i].sym;  /* Reloc syms are after .text sym. */
+    reloc.type = ctx->reloc[i].type ? PEOBJ_RELOC_REL32 : PEOBJ_RELOC_DIR32;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+  }
+
+#if LJ_TARGET_X64
+  { /* Write .pdata section. */
+    uint32_t fcofs = (uint32_t)ctx->sym[ctx->nsym-1].ofs;
+    uint32_t pdata[3];  /* Start of .text, end of .text and .xdata. */
+    PEreloc reloc;
+    pdata[0] = 0; pdata[1] = fcofs; pdata[2] = 0;
+    owrite(ctx, &pdata, sizeof(pdata));
+    pdata[0] = fcofs; pdata[1] = (uint32_t)ctx->codesz; pdata[2] = 20;
+    owrite(ctx, &pdata, sizeof(pdata));
+    reloc.vaddr = 0; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 4; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 8; reloc.symidx = 1+2+nrsym+2;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 12; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 16; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 20; reloc.symidx = 1+2+nrsym+2;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+  }
+  { /* Write .xdata section. */
+    uint16_t xdata[8+2+6];
+    PEreloc reloc;
+    xdata[0] = 0x01|0x08|0x10;  /* Ver. 1, uhandler/ehandler, prolog size 0. */
+    xdata[1] = 0x0005;  /* Number of unwind codes, no frame pointer. */
+    xdata[2] = 0x4200;  /* Stack offset 4*8+8 = aword*5. */
+    xdata[3] = 0x3000;  /* Push rbx. */
+    xdata[4] = 0x6000;  /* Push rsi. */
+    xdata[5] = 0x7000;  /* Push rdi. */
+    xdata[6] = 0x5000;  /* Push rbp. */
+    xdata[7] = 0;  /* Alignment. */
+    xdata[8] = xdata[9] = 0;  /* Relocated address of exception handler. */
+    xdata[10] = 0x01;  /* Ver. 1, no handler, prolog size 0. */
+    xdata[11] = 0x1504;  /* Number of unwind codes, fp = rbp, fpofs = 16. */
+    xdata[12] = 0x0300;  /* set_fpreg. */
+    xdata[13] = 0x0200;  /* stack offset 0*8+8 = aword*1. */
+    xdata[14] = 0x3000;  /* Push rbx. */
+    xdata[15] = 0x5000;  /* Push rbp. */
+    owrite(ctx, &xdata, sizeof(xdata));
+    reloc.vaddr = 2*8; reloc.symidx = 1+2+nrsym+2+2;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+  }
+#endif
+
+  /* Write .rdata$Z section. */
+  owrite(ctx, ctx->dasm_ident, strlen(ctx->dasm_ident)+1);
+
+  /* Write symbol table. */
+  strtab = NULL;  /* 1st pass: collect string sizes. */
+  for (;;) {
+    strtabofs = 4;
+    /* Mark as SafeSEH compliant. */
+    emit_peobj_sym(ctx, "@feat.00", 1,
+		   PEOBJ_SECT_ABS, PEOBJ_TYPE_NULL, PEOBJ_SCL_STATIC);
+
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_TEXT);
+    for (i = 0; i < nrsym; i++)
+      emit_peobj_sym(ctx, ctx->relocsym[i], 0,
+		     PEOBJ_SECT_UNDEF, PEOBJ_TYPE_FUNC, PEOBJ_SCL_EXTERN);
+
+#if LJ_TARGET_X64
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_PDATA);
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_XDATA);
+    emit_peobj_sym(ctx, "lj_err_unwind_win64", 0,
+		   PEOBJ_SECT_UNDEF, PEOBJ_TYPE_FUNC, PEOBJ_SCL_EXTERN);
+#endif
+
+    emit_peobj_sym(ctx, ctx->beginsym, 0,
+		   PEOBJ_SECT_TEXT, PEOBJ_TYPE_NULL, PEOBJ_SCL_EXTERN);
+    for (i = 0; i < ctx->nsym; i++)
+      emit_peobj_sym(ctx, ctx->sym[i].name, (uint32_t)ctx->sym[i].ofs,
+		     PEOBJ_SECT_TEXT, PEOBJ_TYPE_FUNC, PEOBJ_SCL_EXTERN);
+
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_RDATA_Z);
+
+    if (strtab)
+      break;
+    /* 2nd pass: alloc strtab, write syms and copy strings. */
+    strtab = (char *)malloc(strtabofs);
+    *(uint32_t *)strtab = (uint32_t)strtabofs;
+  }
+
+  /* Write string table. */
+  owrite(ctx, strtab, strtabofs);
+}
+
+#else
+
+void emit_peobj(BuildCtx *ctx)
+{
+  UNUSED(ctx);
+  fprintf(stderr, "Error: no PE object support for this target\n");
+  exit(1);
+}
+
+#endif
diff --git a/lib/luajit/src/host/genminilua.lua b/lib/luajit/src/host/genminilua.lua
new file mode 100644
index 00000000..04c55188
--- /dev/null
+++ b/lib/luajit/src/host/genminilua.lua
@@ -0,0 +1,428 @@
+----------------------------------------------------------------------------
+-- Lua script to generate a customized, minified version of Lua.
+-- The resulting 'minilua' is used for the build process of LuaJIT.
+----------------------------------------------------------------------------
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+
+local sub, match, gsub = string.sub, string.match, string.gsub
+
+local LUA_VERSION = "5.1.5"
+local LUA_SOURCE
+
+local function usage()
+  io.stderr:write("Usage: ", arg and arg[0] or "genminilua",
+		  " lua-", LUA_VERSION, "-source-dir\n")
+  os.exit(1)
+end
+
+local function find_sources()
+  LUA_SOURCE = arg and arg[1]
+  if not LUA_SOURCE then usage() end
+  if sub(LUA_SOURCE, -1) ~= "/" then LUA_SOURCE = LUA_SOURCE.."/" end
+  local fp = io.open(LUA_SOURCE .. "lua.h")
+  if not fp then
+    LUA_SOURCE = LUA_SOURCE.."src/"
+    fp = io.open(LUA_SOURCE .. "lua.h")
+    if not fp then usage() end
+  end
+  local all = fp:read("*a")
+  fp:close()
+  if not match(all, 'LUA_RELEASE%s*"Lua '..LUA_VERSION..'"') then
+    io.stderr:write("Error: version mismatch\n")
+    usage()
+  end
+end
+
+local LUA_FILES = {
+"lmem.c", "lobject.c", "ltm.c", "lfunc.c", "ldo.c", "lstring.c", "ltable.c",
+"lgc.c", "lstate.c", "ldebug.c", "lzio.c", "lopcodes.c",
+"llex.c", "lcode.c", "lparser.c", "lvm.c", "lapi.c", "lauxlib.c",
+"lbaselib.c", "ltablib.c", "liolib.c", "loslib.c", "lstrlib.c", "linit.c",
+}
+
+local REMOVE_LIB = {}
+gsub([[
+collectgarbage dofile gcinfo getfenv getmetatable load print rawequal rawset
+select tostring xpcall
+foreach foreachi getn maxn setn
+popen tmpfile seek setvbuf __tostring
+clock date difftime execute getenv rename setlocale time tmpname
+dump gfind len reverse
+LUA_LOADLIBNAME LUA_MATHLIBNAME LUA_DBLIBNAME
+]], "%S+", function(name)
+  REMOVE_LIB[name] = true
+end)
+
+local REMOVE_EXTINC = { ["<assert.h>"] = true, ["<locale.h>"] = true, }
+
+local CUSTOM_MAIN = [[
+typedef unsigned int UB;
+static UB barg(lua_State *L,int idx){
+union{lua_Number n;U64 b;}bn;
+bn.n=lua_tonumber(L,idx)+6755399441055744.0;
+if (bn.n==0.0&&!lua_isnumber(L,idx))luaL_typerror(L,idx,"number");
+return(UB)bn.b;
+}
+#define BRET(b) lua_pushnumber(L,(lua_Number)(int)(b));return 1;
+static int tobit(lua_State *L){
+BRET(barg(L,1))}
+static int bnot(lua_State *L){
+BRET(~barg(L,1))}
+static int band(lua_State *L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b&=barg(L,i);BRET(b)}
+static int bor(lua_State *L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b|=barg(L,i);BRET(b)}
+static int bxor(lua_State *L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b^=barg(L,i);BRET(b)}
+static int lshift(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b<<n)}
+static int rshift(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b>>n)}
+static int arshift(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((int)b>>n)}
+static int rol(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b<<n)|(b>>(32-n)))}
+static int ror(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b>>n)|(b<<(32-n)))}
+static int bswap(lua_State *L){
+UB b=barg(L,1);b=(b>>24)|((b>>8)&0xff00)|((b&0xff00)<<8)|(b<<24);BRET(b)}
+static int tohex(lua_State *L){
+UB b=barg(L,1);
+int n=lua_isnone(L,2)?8:(int)barg(L,2);
+const char *hexdigits="0123456789abcdef";
+char buf[8];
+int i;
+if(n<0){n=-n;hexdigits="0123456789ABCDEF";}
+if(n>8)n=8;
+for(i=(int)n;--i>=0;){buf[i]=hexdigits[b&15];b>>=4;}
+lua_pushlstring(L,buf,(size_t)n);
+return 1;
+}
+static const struct luaL_Reg bitlib[] = {
+{"tobit",tobit},
+{"bnot",bnot},
+{"band",band},
+{"bor",bor},
+{"bxor",bxor},
+{"lshift",lshift},
+{"rshift",rshift},
+{"arshift",arshift},
+{"rol",rol},
+{"ror",ror},
+{"bswap",bswap},
+{"tohex",tohex},
+{NULL,NULL}
+};
+int main(int argc, char **argv){
+  lua_State *L = luaL_newstate();
+  int i;
+  luaL_openlibs(L);
+  luaL_register(L, "bit", bitlib);
+  if (argc < 2) return sizeof(void *);
+  lua_createtable(L, 0, 1);
+  lua_pushstring(L, argv[1]);
+  lua_rawseti(L, -2, 0);
+  lua_setglobal(L, "arg");
+  if (luaL_loadfile(L, argv[1]))
+    goto err;
+  for (i = 2; i < argc; i++)
+    lua_pushstring(L, argv[i]);
+  if (lua_pcall(L, argc - 2, 0, 0)) {
+  err:
+    fprintf(stderr, "Error: %s\n", lua_tostring(L, -1));
+    return 1;
+  }
+  lua_close(L);
+  return 0;
+}
+]]
+
+local function read_sources()
+  local t = {}
+  for i, name in ipairs(LUA_FILES) do
+    local fp = assert(io.open(LUA_SOURCE..name, "r"))
+    t[i] = fp:read("*a")
+    assert(fp:close())
+  end
+  t[#t+1] = CUSTOM_MAIN
+  return table.concat(t)
+end
+
+local includes = {}
+
+local function merge_includes(src)
+  return gsub(src, '#include%s*"([^"]*)"%s*\n', function(name)
+    if includes[name] then return "" end
+    includes[name] = true
+    local fp = assert(io.open(LUA_SOURCE..name, "r"))
+    local src = fp:read("*a")
+    assert(fp:close())
+    src = gsub(src, "#ifndef%s+%w+_h\n#define%s+%w+_h\n", "")
+    src = gsub(src, "#endif%s*$", "")
+    return merge_includes(src)
+  end)
+end
+
+local function get_license(src)
+  return match(src, "/%*+\n%* Copyright %(.-%*/\n")
+end
+
+local function fold_lines(src)
+  return gsub(src, "\\\n", " ")
+end
+
+local strings = {}
+
+local function save_str(str)
+  local n = #strings+1
+  strings[n] = str
+  return "\1"..n.."\2"
+end
+
+local function save_strings(src)
+  src = gsub(src, '"[^"\n]*"', save_str)
+  return gsub(src, "'[^'\n]*'", save_str)
+end
+
+local function restore_strings(src)
+  return gsub(src, "\1(%d+)\2", function(numstr)
+    return strings[tonumber(numstr)]
+  end)
+end
+
+local function def_istrue(def)
+  return def == "INT_MAX > 2147483640L" or
+	 def == "LUAI_BITSINT >= 32" or
+	 def == "SIZE_Bx < LUAI_BITSINT-1" or
+	 def == "cast" or
+	 def == "defined(LUA_CORE)" or
+	 def == "MINSTRTABSIZE" or
+	 def == "LUA_MINBUFFER" or
+	 def == "HARDSTACKTESTS" or
+	 def == "UNUSED"
+end
+
+local head, defs = {[[
+#ifdef _MSC_VER
+typedef unsigned __int64 U64;
+#else
+typedef unsigned long long U64;
+#endif
+int _CRT_glob = 0;
+]]}, {}
+
+local function preprocess(src)
+  local t = { match(src, "^(.-)#") }
+  local lvl, on, oldon = 0, true, {}
+  for pp, def, txt in string.gmatch(src, "#(%w+) *([^\n]*)\n([^#]*)") do
+    if pp == "if" or pp == "ifdef" or pp == "ifndef" then
+      lvl = lvl + 1
+      oldon[lvl] = on
+      on = def_istrue(def)
+    elseif pp == "else" then
+      if oldon[lvl] then
+	if on == false then on = true else on = false end
+      end
+    elseif pp == "elif" then
+      if oldon[lvl] then
+	on = def_istrue(def)
+      end
+    elseif pp == "endif" then
+      on = oldon[lvl]
+      lvl = lvl - 1
+    elseif on then
+      if pp == "include" then
+	if not head[def] and not REMOVE_EXTINC[def] then
+	  head[def] = true
+	  head[#head+1] = "#include "..def.."\n"
+	end
+      elseif pp == "define" then
+	local k, sp, v = match(def, "([%w_]+)(%s*)(.*)")
+	if k and not (sp == "" and sub(v, 1, 1) == "(") then
+	  defs[k] = gsub(v, "%a[%w_]*", function(tok)
+	    return defs[tok] or tok
+	  end)
+	else
+	  t[#t+1] = "#define "..def.."\n"
+	end
+      elseif pp ~= "undef" then
+	error("unexpected directive: "..pp.." "..def)
+      end
+    end
+    if on then t[#t+1] = txt end
+  end
+  return gsub(table.concat(t), "%a[%w_]*", function(tok)
+    return defs[tok] or tok
+  end)
+end
+
+local function merge_header(src, license)
+  local hdr = string.format([[
+/* This is a heavily customized and minimized copy of Lua %s. */
+/* It's only used to build LuaJIT. It does NOT have all standard functions! */
+]], LUA_VERSION)
+  return hdr..license..table.concat(head)..src
+end
+
+local function strip_unused1(src)
+  return gsub(src, '(  {"?([%w_]+)"?,%s+%a[%w_]*},\n)', function(line, func)
+    return REMOVE_LIB[func] and "" or line
+  end)
+end
+
+local function strip_unused2(src)
+  return gsub(src, "Symbolic Execution.-}=", "")
+end
+
+local function strip_unused3(src)
+  src = gsub(src, "extern", "static")
+  src = gsub(src, "\nstatic([^\n]-)%(([^)]*)%)%(", "\nstatic%1 %2(")
+  src = gsub(src, "#define lua_assert[^\n]*\n", "")
+  src = gsub(src, "lua_assert%b();?", "")
+  src = gsub(src, "default:\n}", "default:;\n}")
+  src = gsub(src, "lua_lock%b();", "")
+  src = gsub(src, "lua_unlock%b();", "")
+  src = gsub(src, "luai_threadyield%b();", "")
+  src = gsub(src, "luai_userstateopen%b();", "{}")
+  src = gsub(src, "luai_userstate%w+%b();", "")
+  src = gsub(src, "%(%(c==.*luaY_parser%)", "luaY_parser")
+  src = gsub(src, "trydecpoint%(ls,seminfo%)",
+		  "luaX_lexerror(ls,\"malformed number\",TK_NUMBER)")
+  src = gsub(src, "int c=luaZ_lookahead%b();", "")
+  src = gsub(src, "luaL_register%(L,[^,]*,co_funcs%);\nreturn 2;",
+		  "return 1;")
+  src = gsub(src, "getfuncname%b():", "NULL:")
+  src = gsub(src, "getobjname%b():", "NULL:")
+  src = gsub(src, "if%([^\n]*hookmask[^\n]*%)\n[^\n]*\n", "")
+  src = gsub(src, "if%([^\n]*hookmask[^\n]*%)%b{}\n", "")
+  src = gsub(src, "if%([^\n]*hookmask[^\n]*&&\n[^\n]*%b{}\n", "")
+  src = gsub(src, "(twoto%b()%()", "%1(size_t)")
+  src = gsub(src, "i<sizenode", "i<(int)sizenode")
+  return gsub(src, "\n\n+", "\n")
+end
+
+local function strip_comments(src)
+  return gsub(src, "/%*.-%*/", " ")
+end
+
+local function strip_whitespace(src)
+  src = gsub(src, "^%s+", "")
+  src = gsub(src, "%s*\n%s*", "\n")
+  src = gsub(src, "[ \t]+", " ")
+  src = gsub(src, "(%W) ", "%1")
+  return gsub(src, " (%W)", "%1")
+end
+
+local function rename_tokens1(src)
+  src = gsub(src, "getline", "getline_")
+  src = gsub(src, "struct ([%w_]+)", "ZX%1")
+  return gsub(src, "union ([%w_]+)", "ZY%1")
+end
+
+local function rename_tokens2(src)
+  src = gsub(src, "ZX([%w_]+)", "struct %1")
+  return gsub(src, "ZY([%w_]+)", "union %1")
+end
+
+local function func_gather(src)
+  local nodes, list = {}, {}
+  local pos, len = 1, #src
+  while pos < len do
+    local d, w = match(src, "^(#define ([%w_]+)[^\n]*\n)", pos)
+    if d then
+      local n = #list+1
+      list[n] = d
+      nodes[w] = n
+    else
+      local s
+      d, w, s = match(src, "^(([%w_]+)[^\n]*([{;])\n)", pos)
+      if not d then
+	d, w, s = match(src, "^(([%w_]+)[^(]*%b()([{;])\n)", pos)
+	if not d then d = match(src, "^[^\n]*\n", pos) end
+      end
+      if s == "{" then
+	d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3)
+	if sub(d, -2) == "{\n" then
+	  d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3)
+	end
+      end
+      local k, v = nil, d
+      if w == "typedef" then
+	if match(d, "^typedef enum") then
+	  head[#head+1] = d
+	else
+	  k = match(d, "([%w_]+);\n$")
+	  if not k then k = match(d, "^.-%(.-([%w_]+)%)%(") end
+	end
+      elseif w == "enum" then
+	head[#head+1] = v
+      elseif w ~= nil then
+	k = match(d, "^[^\n]-([%w_]+)[(%[=]")
+	if k then
+	  if w ~= "static" and k ~= "main" then v = "static "..d end
+	else
+	  k = w
+	end
+      end
+      if w and k then
+	local o = nodes[k]
+	if o then nodes["*"..k] = o end
+	local n = #list+1
+	list[n] = v
+	nodes[k] = n
+      end
+    end
+    pos = pos + #d
+  end
+  return nodes, list
+end
+
+local function func_visit(nodes, list, used, n)
+  local i = nodes[n]
+  for m in string.gmatch(list[i], "[%w_]+") do
+    if nodes[m] then
+      local j = used[m]
+      if not j then
+	used[m] = i
+	func_visit(nodes, list, used, m)
+      elseif i < j then
+	used[m] = i
+      end
+    end
+  end
+end
+
+local function func_collect(src)
+  local nodes, list = func_gather(src)
+  local used = {}
+  func_visit(nodes, list, used, "main")
+  for n,i in pairs(nodes) do
+    local j = used[n]
+    if j and j < i then used["*"..n] = j end
+  end
+  for n,i in pairs(nodes) do
+    if not used[n] then list[i] = "" end
+  end
+  return table.concat(list)
+end
+
+find_sources()
+local src = read_sources()
+src = merge_includes(src)
+local license = get_license(src)
+src = fold_lines(src)
+src = strip_unused1(src)
+src = save_strings(src)
+src = strip_unused2(src)
+src = strip_comments(src)
+src = preprocess(src)
+src = strip_whitespace(src)
+src = strip_unused3(src)
+src = rename_tokens1(src)
+src = func_collect(src)
+src = rename_tokens2(src)
+src = restore_strings(src)
+src = merge_header(src, license)
+io.write(src)
diff --git a/lib/luajit/src/host/minilua.c b/lib/luajit/src/host/minilua.c
new file mode 100644
index 00000000..aee192a7
--- /dev/null
+++ b/lib/luajit/src/host/minilua.c
@@ -0,0 +1,7770 @@
+/* This is a heavily customized and minimized copy of Lua 5.1.5. */
+/* It's only used to build LuaJIT. It does NOT have all standard functions! */
+/******************************************************************************
+* Copyright (C) 1994-2012 Lua.org, PUC-Rio.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+******************************************************************************/
+#ifdef _MSC_VER
+typedef unsigned __int64 U64;
+#else
+typedef unsigned long long U64;
+#endif
+int _CRT_glob = 0;
+#include <stddef.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <math.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <setjmp.h>
+#include <errno.h>
+#include <time.h>
+typedef enum{
+TM_INDEX,
+TM_NEWINDEX,
+TM_GC,
+TM_MODE,
+TM_EQ,
+TM_ADD,
+TM_SUB,
+TM_MUL,
+TM_DIV,
+TM_MOD,
+TM_POW,
+TM_UNM,
+TM_LEN,
+TM_LT,
+TM_LE,
+TM_CONCAT,
+TM_CALL,
+TM_N
+}TMS;
+enum OpMode{iABC,iABx,iAsBx};
+typedef enum{
+OP_MOVE,
+OP_LOADK,
+OP_LOADBOOL,
+OP_LOADNIL,
+OP_GETUPVAL,
+OP_GETGLOBAL,
+OP_GETTABLE,
+OP_SETGLOBAL,
+OP_SETUPVAL,
+OP_SETTABLE,
+OP_NEWTABLE,
+OP_SELF,
+OP_ADD,
+OP_SUB,
+OP_MUL,
+OP_DIV,
+OP_MOD,
+OP_POW,
+OP_UNM,
+OP_NOT,
+OP_LEN,
+OP_CONCAT,
+OP_JMP,
+OP_EQ,
+OP_LT,
+OP_LE,
+OP_TEST,
+OP_TESTSET,
+OP_CALL,
+OP_TAILCALL,
+OP_RETURN,
+OP_FORLOOP,
+OP_FORPREP,
+OP_TFORLOOP,
+OP_SETLIST,
+OP_CLOSE,
+OP_CLOSURE,
+OP_VARARG
+}OpCode;
+enum OpArgMask{
+OpArgN,
+OpArgU,
+OpArgR,
+OpArgK
+};
+typedef enum{
+VVOID,
+VNIL,
+VTRUE,
+VFALSE,
+VK,
+VKNUM,
+VLOCAL,
+VUPVAL,
+VGLOBAL,
+VINDEXED,
+VJMP,
+VRELOCABLE,
+VNONRELOC,
+VCALL,
+VVARARG
+}expkind;
+enum RESERVED{
+TK_AND=257,TK_BREAK,
+TK_DO,TK_ELSE,TK_ELSEIF,TK_END,TK_FALSE,TK_FOR,TK_FUNCTION,
+TK_IF,TK_IN,TK_LOCAL,TK_NIL,TK_NOT,TK_OR,TK_REPEAT,
+TK_RETURN,TK_THEN,TK_TRUE,TK_UNTIL,TK_WHILE,
+TK_CONCAT,TK_DOTS,TK_EQ,TK_GE,TK_LE,TK_NE,TK_NUMBER,
+TK_NAME,TK_STRING,TK_EOS
+};
+typedef enum BinOpr{
+OPR_ADD,OPR_SUB,OPR_MUL,OPR_DIV,OPR_MOD,OPR_POW,
+OPR_CONCAT,
+OPR_NE,OPR_EQ,
+OPR_LT,OPR_LE,OPR_GT,OPR_GE,
+OPR_AND,OPR_OR,
+OPR_NOBINOPR
+}BinOpr;
+typedef enum UnOpr{OPR_MINUS,OPR_NOT,OPR_LEN,OPR_NOUNOPR}UnOpr;
+#define LUA_QL(x)"'"x"'"
+#define luai_apicheck(L,o){(void)L;}
+#define lua_number2str(s,n)sprintf((s),"%.14g",(n))
+#define lua_str2number(s,p)strtod((s),(p))
+#define luai_numadd(a,b)((a)+(b))
+#define luai_numsub(a,b)((a)-(b))
+#define luai_nummul(a,b)((a)*(b))
+#define luai_numdiv(a,b)((a)/(b))
+#define luai_nummod(a,b)((a)-floor((a)/(b))*(b))
+#define luai_numpow(a,b)(pow(a,b))
+#define luai_numunm(a)(-(a))
+#define luai_numeq(a,b)((a)==(b))
+#define luai_numlt(a,b)((a)<(b))
+#define luai_numle(a,b)((a)<=(b))
+#define luai_numisnan(a)(!luai_numeq((a),(a)))
+#define lua_number2int(i,d)((i)=(int)(d))
+#define lua_number2integer(i,d)((i)=(lua_Integer)(d))
+#define LUAI_THROW(L,c)longjmp((c)->b,1)
+#define LUAI_TRY(L,c,a)if(setjmp((c)->b)==0){a}
+#define lua_pclose(L,file)((void)((void)L,file),0)
+#define lua_upvalueindex(i)((-10002)-(i))
+typedef struct lua_State lua_State;
+typedef int(*lua_CFunction)(lua_State*L);
+typedef const char*(*lua_Reader)(lua_State*L,void*ud,size_t*sz);
+typedef void*(*lua_Alloc)(void*ud,void*ptr,size_t osize,size_t nsize);
+typedef double lua_Number;
+typedef ptrdiff_t lua_Integer;
+static void lua_settop(lua_State*L,int idx);
+static int lua_type(lua_State*L,int idx);
+static const char* lua_tolstring(lua_State*L,int idx,size_t*len);
+static size_t lua_objlen(lua_State*L,int idx);
+static void lua_pushlstring(lua_State*L,const char*s,size_t l);
+static void lua_pushcclosure(lua_State*L,lua_CFunction fn,int n);
+static void lua_createtable(lua_State*L,int narr,int nrec);
+static void lua_setfield(lua_State*L,int idx,const char*k);
+#define lua_pop(L,n)lua_settop(L,-(n)-1)
+#define lua_newtable(L)lua_createtable(L,0,0)
+#define lua_pushcfunction(L,f)lua_pushcclosure(L,(f),0)
+#define lua_strlen(L,i)lua_objlen(L,(i))
+#define lua_isfunction(L,n)(lua_type(L,(n))==6)
+#define lua_istable(L,n)(lua_type(L,(n))==5)
+#define lua_isnil(L,n)(lua_type(L,(n))==0)
+#define lua_isboolean(L,n)(lua_type(L,(n))==1)
+#define lua_isnone(L,n)(lua_type(L,(n))==(-1))
+#define lua_isnoneornil(L,n)(lua_type(L,(n))<=0)
+#define lua_pushliteral(L,s)lua_pushlstring(L,""s,(sizeof(s)/sizeof(char))-1)
+#define lua_setglobal(L,s)lua_setfield(L,(-10002),(s))
+#define lua_tostring(L,i)lua_tolstring(L,(i),NULL)
+typedef struct lua_Debug lua_Debug;
+typedef void(*lua_Hook)(lua_State*L,lua_Debug*ar);
+struct lua_Debug{
+int event;
+const char*name;
+const char*namewhat;
+const char*what;
+const char*source;
+int currentline;
+int nups;
+int linedefined;
+int lastlinedefined;
+char short_src[60];
+int i_ci;
+};
+typedef unsigned int lu_int32;
+typedef size_t lu_mem;
+typedef ptrdiff_t l_mem;
+typedef unsigned char lu_byte;
+#define IntPoint(p)((unsigned int)(lu_mem)(p))
+typedef union{double u;void*s;long l;}L_Umaxalign;
+typedef double l_uacNumber;
+#define check_exp(c,e)(e)
+#define UNUSED(x)((void)(x))
+#define cast(t,exp)((t)(exp))
+#define cast_byte(i)cast(lu_byte,(i))
+#define cast_num(i)cast(lua_Number,(i))
+#define cast_int(i)cast(int,(i))
+typedef lu_int32 Instruction;
+#define condhardstacktests(x)((void)0)
+typedef union GCObject GCObject;
+typedef struct GCheader{
+GCObject*next;lu_byte tt;lu_byte marked;
+}GCheader;
+typedef union{
+GCObject*gc;
+void*p;
+lua_Number n;
+int b;
+}Value;
+typedef struct lua_TValue{
+Value value;int tt;
+}TValue;
+#define ttisnil(o)(ttype(o)==0)
+#define ttisnumber(o)(ttype(o)==3)
+#define ttisstring(o)(ttype(o)==4)
+#define ttistable(o)(ttype(o)==5)
+#define ttisfunction(o)(ttype(o)==6)
+#define ttisboolean(o)(ttype(o)==1)
+#define ttisuserdata(o)(ttype(o)==7)
+#define ttisthread(o)(ttype(o)==8)
+#define ttislightuserdata(o)(ttype(o)==2)
+#define ttype(o)((o)->tt)
+#define gcvalue(o)check_exp(iscollectable(o),(o)->value.gc)
+#define pvalue(o)check_exp(ttislightuserdata(o),(o)->value.p)
+#define nvalue(o)check_exp(ttisnumber(o),(o)->value.n)
+#define rawtsvalue(o)check_exp(ttisstring(o),&(o)->value.gc->ts)
+#define tsvalue(o)(&rawtsvalue(o)->tsv)
+#define rawuvalue(o)check_exp(ttisuserdata(o),&(o)->value.gc->u)
+#define uvalue(o)(&rawuvalue(o)->uv)
+#define clvalue(o)check_exp(ttisfunction(o),&(o)->value.gc->cl)
+#define hvalue(o)check_exp(ttistable(o),&(o)->value.gc->h)
+#define bvalue(o)check_exp(ttisboolean(o),(o)->value.b)
+#define thvalue(o)check_exp(ttisthread(o),&(o)->value.gc->th)
+#define l_isfalse(o)(ttisnil(o)||(ttisboolean(o)&&bvalue(o)==0))
+#define checkconsistency(obj)
+#define checkliveness(g,obj)
+#define setnilvalue(obj)((obj)->tt=0)
+#define setnvalue(obj,x){TValue*i_o=(obj);i_o->value.n=(x);i_o->tt=3;}
+#define setbvalue(obj,x){TValue*i_o=(obj);i_o->value.b=(x);i_o->tt=1;}
+#define setsvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=4;checkliveness(G(L),i_o);}
+#define setuvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=7;checkliveness(G(L),i_o);}
+#define setthvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=8;checkliveness(G(L),i_o);}
+#define setclvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=6;checkliveness(G(L),i_o);}
+#define sethvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=5;checkliveness(G(L),i_o);}
+#define setptvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=(8+1);checkliveness(G(L),i_o);}
+#define setobj(L,obj1,obj2){const TValue*o2=(obj2);TValue*o1=(obj1);o1->value=o2->value;o1->tt=o2->tt;checkliveness(G(L),o1);}
+#define setttype(obj,tt)(ttype(obj)=(tt))
+#define iscollectable(o)(ttype(o)>=4)
+typedef TValue*StkId;
+typedef union TString{
+L_Umaxalign dummy;
+struct{
+GCObject*next;lu_byte tt;lu_byte marked;
+lu_byte reserved;
+unsigned int hash;
+size_t len;
+}tsv;
+}TString;
+#define getstr(ts)cast(const char*,(ts)+1)
+#define svalue(o)getstr(rawtsvalue(o))
+typedef union Udata{
+L_Umaxalign dummy;
+struct{
+GCObject*next;lu_byte tt;lu_byte marked;
+struct Table*metatable;
+struct Table*env;
+size_t len;
+}uv;
+}Udata;
+typedef struct Proto{
+GCObject*next;lu_byte tt;lu_byte marked;
+TValue*k;
+Instruction*code;
+struct Proto**p;
+int*lineinfo;
+struct LocVar*locvars;
+TString**upvalues;
+TString*source;
+int sizeupvalues;
+int sizek;
+int sizecode;
+int sizelineinfo;
+int sizep;
+int sizelocvars;
+int linedefined;
+int lastlinedefined;
+GCObject*gclist;
+lu_byte nups;
+lu_byte numparams;
+lu_byte is_vararg;
+lu_byte maxstacksize;
+}Proto;
+typedef struct LocVar{
+TString*varname;
+int startpc;
+int endpc;
+}LocVar;
+typedef struct UpVal{
+GCObject*next;lu_byte tt;lu_byte marked;
+TValue*v;
+union{
+TValue value;
+struct{
+struct UpVal*prev;
+struct UpVal*next;
+}l;
+}u;
+}UpVal;
+typedef struct CClosure{
+GCObject*next;lu_byte tt;lu_byte marked;lu_byte isC;lu_byte nupvalues;GCObject*gclist;struct Table*env;
+lua_CFunction f;
+TValue upvalue[1];
+}CClosure;
+typedef struct LClosure{
+GCObject*next;lu_byte tt;lu_byte marked;lu_byte isC;lu_byte nupvalues;GCObject*gclist;struct Table*env;
+struct Proto*p;
+UpVal*upvals[1];
+}LClosure;
+typedef union Closure{
+CClosure c;
+LClosure l;
+}Closure;
+#define iscfunction(o)(ttype(o)==6&&clvalue(o)->c.isC)
+typedef union TKey{
+struct{
+Value value;int tt;
+struct Node*next;
+}nk;
+TValue tvk;
+}TKey;
+typedef struct Node{
+TValue i_val;
+TKey i_key;
+}Node;
+typedef struct Table{
+GCObject*next;lu_byte tt;lu_byte marked;
+lu_byte flags;
+lu_byte lsizenode;
+struct Table*metatable;
+TValue*array;
+Node*node;
+Node*lastfree;
+GCObject*gclist;
+int sizearray;
+}Table;
+#define lmod(s,size)(check_exp((size&(size-1))==0,(cast(int,(s)&((size)-1)))))
+#define twoto(x)((size_t)1<<(x))
+#define sizenode(t)(twoto((t)->lsizenode))
+static const TValue luaO_nilobject_;
+#define ceillog2(x)(luaO_log2((x)-1)+1)
+static int luaO_log2(unsigned int x);
+#define gfasttm(g,et,e)((et)==NULL?NULL:((et)->flags&(1u<<(e)))?NULL:luaT_gettm(et,e,(g)->tmname[e]))
+#define fasttm(l,et,e)gfasttm(G(l),et,e)
+static const TValue*luaT_gettm(Table*events,TMS event,TString*ename);
+#define luaM_reallocv(L,b,on,n,e)((cast(size_t,(n)+1)<=((size_t)(~(size_t)0)-2)/(e))?luaM_realloc_(L,(b),(on)*(e),(n)*(e)):luaM_toobig(L))
+#define luaM_freemem(L,b,s)luaM_realloc_(L,(b),(s),0)
+#define luaM_free(L,b)luaM_realloc_(L,(b),sizeof(*(b)),0)
+#define luaM_freearray(L,b,n,t)luaM_reallocv(L,(b),n,0,sizeof(t))
+#define luaM_malloc(L,t)luaM_realloc_(L,NULL,0,(t))
+#define luaM_new(L,t)cast(t*,luaM_malloc(L,sizeof(t)))
+#define luaM_newvector(L,n,t)cast(t*,luaM_reallocv(L,NULL,0,n,sizeof(t)))
+#define luaM_growvector(L,v,nelems,size,t,limit,e)if((nelems)+1>(size))((v)=cast(t*,luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
+#define luaM_reallocvector(L,v,oldn,n,t)((v)=cast(t*,luaM_reallocv(L,v,oldn,n,sizeof(t))))
+static void*luaM_realloc_(lua_State*L,void*block,size_t oldsize,
+size_t size);
+static void*luaM_toobig(lua_State*L);
+static void*luaM_growaux_(lua_State*L,void*block,int*size,
+size_t size_elem,int limit,
+const char*errormsg);
+typedef struct Zio ZIO;
+#define char2int(c)cast(int,cast(unsigned char,(c)))
+#define zgetc(z)(((z)->n--)>0?char2int(*(z)->p++):luaZ_fill(z))
+typedef struct Mbuffer{
+char*buffer;
+size_t n;
+size_t buffsize;
+}Mbuffer;
+#define luaZ_initbuffer(L,buff)((buff)->buffer=NULL,(buff)->buffsize=0)
+#define luaZ_buffer(buff)((buff)->buffer)
+#define luaZ_sizebuffer(buff)((buff)->buffsize)
+#define luaZ_bufflen(buff)((buff)->n)
+#define luaZ_resetbuffer(buff)((buff)->n=0)
+#define luaZ_resizebuffer(L,buff,size)(luaM_reallocvector(L,(buff)->buffer,(buff)->buffsize,size,char),(buff)->buffsize=size)
+#define luaZ_freebuffer(L,buff)luaZ_resizebuffer(L,buff,0)
+struct Zio{
+size_t n;
+const char*p;
+lua_Reader reader;
+void*data;
+lua_State*L;
+};
+static int luaZ_fill(ZIO*z);
+struct lua_longjmp;
+#define gt(L)(&L->l_gt)
+#define registry(L)(&G(L)->l_registry)
+typedef struct stringtable{
+GCObject**hash;
+lu_int32 nuse;
+int size;
+}stringtable;
+typedef struct CallInfo{
+StkId base;
+StkId func;
+StkId top;
+const Instruction*savedpc;
+int nresults;
+int tailcalls;
+}CallInfo;
+#define curr_func(L)(clvalue(L->ci->func))
+#define ci_func(ci)(clvalue((ci)->func))
+#define f_isLua(ci)(!ci_func(ci)->c.isC)
+#define isLua(ci)(ttisfunction((ci)->func)&&f_isLua(ci))
+typedef struct global_State{
+stringtable strt;
+lua_Alloc frealloc;
+void*ud;
+lu_byte currentwhite;
+lu_byte gcstate;
+int sweepstrgc;
+GCObject*rootgc;
+GCObject**sweepgc;
+GCObject*gray;
+GCObject*grayagain;
+GCObject*weak;
+GCObject*tmudata;
+Mbuffer buff;
+lu_mem GCthreshold;
+lu_mem totalbytes;
+lu_mem estimate;
+lu_mem gcdept;
+int gcpause;
+int gcstepmul;
+lua_CFunction panic;
+TValue l_registry;
+struct lua_State*mainthread;
+UpVal uvhead;
+struct Table*mt[(8+1)];
+TString*tmname[TM_N];
+}global_State;
+struct lua_State{
+GCObject*next;lu_byte tt;lu_byte marked;
+lu_byte status;
+StkId top;
+StkId base;
+global_State*l_G;
+CallInfo*ci;
+const Instruction*savedpc;
+StkId stack_last;
+StkId stack;
+CallInfo*end_ci;
+CallInfo*base_ci;
+int stacksize;
+int size_ci;
+unsigned short nCcalls;
+unsigned short baseCcalls;
+lu_byte hookmask;
+lu_byte allowhook;
+int basehookcount;
+int hookcount;
+lua_Hook hook;
+TValue l_gt;
+TValue env;
+GCObject*openupval;
+GCObject*gclist;
+struct lua_longjmp*errorJmp;
+ptrdiff_t errfunc;
+};
+#define G(L)(L->l_G)
+union GCObject{
+GCheader gch;
+union TString ts;
+union Udata u;
+union Closure cl;
+struct Table h;
+struct Proto p;
+struct UpVal uv;
+struct lua_State th;
+};
+#define rawgco2ts(o)check_exp((o)->gch.tt==4,&((o)->ts))
+#define gco2ts(o)(&rawgco2ts(o)->tsv)
+#define rawgco2u(o)check_exp((o)->gch.tt==7,&((o)->u))
+#define gco2u(o)(&rawgco2u(o)->uv)
+#define gco2cl(o)check_exp((o)->gch.tt==6,&((o)->cl))
+#define gco2h(o)check_exp((o)->gch.tt==5,&((o)->h))
+#define gco2p(o)check_exp((o)->gch.tt==(8+1),&((o)->p))
+#define gco2uv(o)check_exp((o)->gch.tt==(8+2),&((o)->uv))
+#define ngcotouv(o)check_exp((o)==NULL||(o)->gch.tt==(8+2),&((o)->uv))
+#define gco2th(o)check_exp((o)->gch.tt==8,&((o)->th))
+#define obj2gco(v)(cast(GCObject*,(v)))
+static void luaE_freethread(lua_State*L,lua_State*L1);
+#define pcRel(pc,p)(cast(int,(pc)-(p)->code)-1)
+#define getline_(f,pc)(((f)->lineinfo)?(f)->lineinfo[pc]:0)
+#define resethookcount(L)(L->hookcount=L->basehookcount)
+static void luaG_typeerror(lua_State*L,const TValue*o,
+const char*opname);
+static void luaG_runerror(lua_State*L,const char*fmt,...);
+#define luaD_checkstack(L,n)if((char*)L->stack_last-(char*)L->top<=(n)*(int)sizeof(TValue))luaD_growstack(L,n);else condhardstacktests(luaD_reallocstack(L,L->stacksize-5-1));
+#define incr_top(L){luaD_checkstack(L,1);L->top++;}
+#define savestack(L,p)((char*)(p)-(char*)L->stack)
+#define restorestack(L,n)((TValue*)((char*)L->stack+(n)))
+#define saveci(L,p)((char*)(p)-(char*)L->base_ci)
+#define restoreci(L,n)((CallInfo*)((char*)L->base_ci+(n)))
+typedef void(*Pfunc)(lua_State*L,void*ud);
+static int luaD_poscall(lua_State*L,StkId firstResult);
+static void luaD_reallocCI(lua_State*L,int newsize);
+static void luaD_reallocstack(lua_State*L,int newsize);
+static void luaD_growstack(lua_State*L,int n);
+static void luaD_throw(lua_State*L,int errcode);
+static void*luaM_growaux_(lua_State*L,void*block,int*size,size_t size_elems,
+int limit,const char*errormsg){
+void*newblock;
+int newsize;
+if(*size>=limit/2){
+if(*size>=limit)
+luaG_runerror(L,errormsg);
+newsize=limit;
+}
+else{
+newsize=(*size)*2;
+if(newsize<4)
+newsize=4;
+}
+newblock=luaM_reallocv(L,block,*size,newsize,size_elems);
+*size=newsize;
+return newblock;
+}
+static void*luaM_toobig(lua_State*L){
+luaG_runerror(L,"memory allocation error: block too big");
+return NULL;
+}
+static void*luaM_realloc_(lua_State*L,void*block,size_t osize,size_t nsize){
+global_State*g=G(L);
+block=(*g->frealloc)(g->ud,block,osize,nsize);
+if(block==NULL&&nsize>0)
+luaD_throw(L,4);
+g->totalbytes=(g->totalbytes-osize)+nsize;
+return block;
+}
+#define resetbits(x,m)((x)&=cast(lu_byte,~(m)))
+#define setbits(x,m)((x)|=(m))
+#define testbits(x,m)((x)&(m))
+#define bitmask(b)(1<<(b))
+#define bit2mask(b1,b2)(bitmask(b1)|bitmask(b2))
+#define l_setbit(x,b)setbits(x,bitmask(b))
+#define resetbit(x,b)resetbits(x,bitmask(b))
+#define testbit(x,b)testbits(x,bitmask(b))
+#define set2bits(x,b1,b2)setbits(x,(bit2mask(b1,b2)))
+#define reset2bits(x,b1,b2)resetbits(x,(bit2mask(b1,b2)))
+#define test2bits(x,b1,b2)testbits(x,(bit2mask(b1,b2)))
+#define iswhite(x)test2bits((x)->gch.marked,0,1)
+#define isblack(x)testbit((x)->gch.marked,2)
+#define isgray(x)(!isblack(x)&&!iswhite(x))
+#define otherwhite(g)(g->currentwhite^bit2mask(0,1))
+#define isdead(g,v)((v)->gch.marked&otherwhite(g)&bit2mask(0,1))
+#define changewhite(x)((x)->gch.marked^=bit2mask(0,1))
+#define gray2black(x)l_setbit((x)->gch.marked,2)
+#define valiswhite(x)(iscollectable(x)&&iswhite(gcvalue(x)))
+#define luaC_white(g)cast(lu_byte,(g)->currentwhite&bit2mask(0,1))
+#define luaC_checkGC(L){condhardstacktests(luaD_reallocstack(L,L->stacksize-5-1));if(G(L)->totalbytes>=G(L)->GCthreshold)luaC_step(L);}
+#define luaC_barrier(L,p,v){if(valiswhite(v)&&isblack(obj2gco(p)))luaC_barrierf(L,obj2gco(p),gcvalue(v));}
+#define luaC_barriert(L,t,v){if(valiswhite(v)&&isblack(obj2gco(t)))luaC_barrierback(L,t);}
+#define luaC_objbarrier(L,p,o){if(iswhite(obj2gco(o))&&isblack(obj2gco(p)))luaC_barrierf(L,obj2gco(p),obj2gco(o));}
+#define luaC_objbarriert(L,t,o){if(iswhite(obj2gco(o))&&isblack(obj2gco(t)))luaC_barrierback(L,t);}
+static void luaC_step(lua_State*L);
+static void luaC_link(lua_State*L,GCObject*o,lu_byte tt);
+static void luaC_linkupval(lua_State*L,UpVal*uv);
+static void luaC_barrierf(lua_State*L,GCObject*o,GCObject*v);
+static void luaC_barrierback(lua_State*L,Table*t);
+#define sizestring(s)(sizeof(union TString)+((s)->len+1)*sizeof(char))
+#define sizeudata(u)(sizeof(union Udata)+(u)->len)
+#define luaS_new(L,s)(luaS_newlstr(L,s,strlen(s)))
+#define luaS_newliteral(L,s)(luaS_newlstr(L,""s,(sizeof(s)/sizeof(char))-1))
+#define luaS_fix(s)l_setbit((s)->tsv.marked,5)
+static TString*luaS_newlstr(lua_State*L,const char*str,size_t l);
+#define tostring(L,o)((ttype(o)==4)||(luaV_tostring(L,o)))
+#define tonumber(o,n)(ttype(o)==3||(((o)=luaV_tonumber(o,n))!=NULL))
+#define equalobj(L,o1,o2)(ttype(o1)==ttype(o2)&&luaV_equalval(L,o1,o2))
+static int luaV_equalval(lua_State*L,const TValue*t1,const TValue*t2);
+static const TValue*luaV_tonumber(const TValue*obj,TValue*n);
+static int luaV_tostring(lua_State*L,StkId obj);
+static void luaV_execute(lua_State*L,int nexeccalls);
+static void luaV_concat(lua_State*L,int total,int last);
+static const TValue luaO_nilobject_={{NULL},0};
+static int luaO_int2fb(unsigned int x){
+int e=0;
+while(x>=16){
+x=(x+1)>>1;
+e++;
+}
+if(x<8)return x;
+else return((e+1)<<3)|(cast_int(x)-8);
+}
+static int luaO_fb2int(int x){
+int e=(x>>3)&31;
+if(e==0)return x;
+else return((x&7)+8)<<(e-1);
+}
+static int luaO_log2(unsigned int x){
+static const lu_byte log_2[256]={
+0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
+};
+int l=-1;
+while(x>=256){l+=8;x>>=8;}
+return l+log_2[x];
+}
+static int luaO_rawequalObj(const TValue*t1,const TValue*t2){
+if(ttype(t1)!=ttype(t2))return 0;
+else switch(ttype(t1)){
+case 0:
+return 1;
+case 3:
+return luai_numeq(nvalue(t1),nvalue(t2));
+case 1:
+return bvalue(t1)==bvalue(t2);
+case 2:
+return pvalue(t1)==pvalue(t2);
+default:
+return gcvalue(t1)==gcvalue(t2);
+}
+}
+static int luaO_str2d(const char*s,lua_Number*result){
+char*endptr;
+*result=lua_str2number(s,&endptr);
+if(endptr==s)return 0;
+if(*endptr=='x'||*endptr=='X')
+*result=cast_num(strtoul(s,&endptr,16));
+if(*endptr=='\0')return 1;
+while(isspace(cast(unsigned char,*endptr)))endptr++;
+if(*endptr!='\0')return 0;
+return 1;
+}
+static void pushstr(lua_State*L,const char*str){
+setsvalue(L,L->top,luaS_new(L,str));
+incr_top(L);
+}
+static const char*luaO_pushvfstring(lua_State*L,const char*fmt,va_list argp){
+int n=1;
+pushstr(L,"");
+for(;;){
+const char*e=strchr(fmt,'%');
+if(e==NULL)break;
+setsvalue(L,L->top,luaS_newlstr(L,fmt,e-fmt));
+incr_top(L);
+switch(*(e+1)){
+case's':{
+const char*s=va_arg(argp,char*);
+if(s==NULL)s="(null)";
+pushstr(L,s);
+break;
+}
+case'c':{
+char buff[2];
+buff[0]=cast(char,va_arg(argp,int));
+buff[1]='\0';
+pushstr(L,buff);
+break;
+}
+case'd':{
+setnvalue(L->top,cast_num(va_arg(argp,int)));
+incr_top(L);
+break;
+}
+case'f':{
+setnvalue(L->top,cast_num(va_arg(argp,l_uacNumber)));
+incr_top(L);
+break;
+}
+case'p':{
+char buff[4*sizeof(void*)+8];
+sprintf(buff,"%p",va_arg(argp,void*));
+pushstr(L,buff);
+break;
+}
+case'%':{
+pushstr(L,"%");
+break;
+}
+default:{
+char buff[3];
+buff[0]='%';
+buff[1]=*(e+1);
+buff[2]='\0';
+pushstr(L,buff);
+break;
+}
+}
+n+=2;
+fmt=e+2;
+}
+pushstr(L,fmt);
+luaV_concat(L,n+1,cast_int(L->top-L->base)-1);
+L->top-=n;
+return svalue(L->top-1);
+}
+static const char*luaO_pushfstring(lua_State*L,const char*fmt,...){
+const char*msg;
+va_list argp;
+va_start(argp,fmt);
+msg=luaO_pushvfstring(L,fmt,argp);
+va_end(argp);
+return msg;
+}
+static void luaO_chunkid(char*out,const char*source,size_t bufflen){
+if(*source=='='){
+strncpy(out,source+1,bufflen);
+out[bufflen-1]='\0';
+}
+else{
+if(*source=='@'){
+size_t l;
+source++;
+bufflen-=sizeof(" '...' ");
+l=strlen(source);
+strcpy(out,"");
+if(l>bufflen){
+source+=(l-bufflen);
+strcat(out,"...");
+}
+strcat(out,source);
+}
+else{
+size_t len=strcspn(source,"\n\r");
+bufflen-=sizeof(" [string \"...\"] ");
+if(len>bufflen)len=bufflen;
+strcpy(out,"[string \"");
+if(source[len]!='\0'){
+strncat(out,source,len);
+strcat(out,"...");
+}
+else
+strcat(out,source);
+strcat(out,"\"]");
+}
+}
+}
+#define gnode(t,i)(&(t)->node[i])
+#define gkey(n)(&(n)->i_key.nk)
+#define gval(n)(&(n)->i_val)
+#define gnext(n)((n)->i_key.nk.next)
+#define key2tval(n)(&(n)->i_key.tvk)
+static TValue*luaH_setnum(lua_State*L,Table*t,int key);
+static const TValue*luaH_getstr(Table*t,TString*key);
+static TValue*luaH_set(lua_State*L,Table*t,const TValue*key);
+static const char*const luaT_typenames[]={
+"nil","boolean","userdata","number",
+"string","table","function","userdata","thread",
+"proto","upval"
+};
+static void luaT_init(lua_State*L){
+static const char*const luaT_eventname[]={
+"__index","__newindex",
+"__gc","__mode","__eq",
+"__add","__sub","__mul","__div","__mod",
+"__pow","__unm","__len","__lt","__le",
+"__concat","__call"
+};
+int i;
+for(i=0;i<TM_N;i++){
+G(L)->tmname[i]=luaS_new(L,luaT_eventname[i]);
+luaS_fix(G(L)->tmname[i]);
+}
+}
+static const TValue*luaT_gettm(Table*events,TMS event,TString*ename){
+const TValue*tm=luaH_getstr(events,ename);
+if(ttisnil(tm)){
+events->flags|=cast_byte(1u<<event);
+return NULL;
+}
+else return tm;
+}
+static const TValue*luaT_gettmbyobj(lua_State*L,const TValue*o,TMS event){
+Table*mt;
+switch(ttype(o)){
+case 5:
+mt=hvalue(o)->metatable;
+break;
+case 7:
+mt=uvalue(o)->metatable;
+break;
+default:
+mt=G(L)->mt[ttype(o)];
+}
+return(mt?luaH_getstr(mt,G(L)->tmname[event]):(&luaO_nilobject_));
+}
+#define sizeCclosure(n)(cast(int,sizeof(CClosure))+cast(int,sizeof(TValue)*((n)-1)))
+#define sizeLclosure(n)(cast(int,sizeof(LClosure))+cast(int,sizeof(TValue*)*((n)-1)))
+static Closure*luaF_newCclosure(lua_State*L,int nelems,Table*e){
+Closure*c=cast(Closure*,luaM_malloc(L,sizeCclosure(nelems)));
+luaC_link(L,obj2gco(c),6);
+c->c.isC=1;
+c->c.env=e;
+c->c.nupvalues=cast_byte(nelems);
+return c;
+}
+static Closure*luaF_newLclosure(lua_State*L,int nelems,Table*e){
+Closure*c=cast(Closure*,luaM_malloc(L,sizeLclosure(nelems)));
+luaC_link(L,obj2gco(c),6);
+c->l.isC=0;
+c->l.env=e;
+c->l.nupvalues=cast_byte(nelems);
+while(nelems--)c->l.upvals[nelems]=NULL;
+return c;
+}
+static UpVal*luaF_newupval(lua_State*L){
+UpVal*uv=luaM_new(L,UpVal);
+luaC_link(L,obj2gco(uv),(8+2));
+uv->v=&uv->u.value;
+setnilvalue(uv->v);
+return uv;
+}
+static UpVal*luaF_findupval(lua_State*L,StkId level){
+global_State*g=G(L);
+GCObject**pp=&L->openupval;
+UpVal*p;
+UpVal*uv;
+while(*pp!=NULL&&(p=ngcotouv(*pp))->v>=level){
+if(p->v==level){
+if(isdead(g,obj2gco(p)))
+changewhite(obj2gco(p));
+return p;
+}
+pp=&p->next;
+}
+uv=luaM_new(L,UpVal);
+uv->tt=(8+2);
+uv->marked=luaC_white(g);
+uv->v=level;
+uv->next=*pp;
+*pp=obj2gco(uv);
+uv->u.l.prev=&g->uvhead;
+uv->u.l.next=g->uvhead.u.l.next;
+uv->u.l.next->u.l.prev=uv;
+g->uvhead.u.l.next=uv;
+return uv;
+}
+static void unlinkupval(UpVal*uv){
+uv->u.l.next->u.l.prev=uv->u.l.prev;
+uv->u.l.prev->u.l.next=uv->u.l.next;
+}
+static void luaF_freeupval(lua_State*L,UpVal*uv){
+if(uv->v!=&uv->u.value)
+unlinkupval(uv);
+luaM_free(L,uv);
+}
+static void luaF_close(lua_State*L,StkId level){
+UpVal*uv;
+global_State*g=G(L);
+while(L->openupval!=NULL&&(uv=ngcotouv(L->openupval))->v>=level){
+GCObject*o=obj2gco(uv);
+L->openupval=uv->next;
+if(isdead(g,o))
+luaF_freeupval(L,uv);
+else{
+unlinkupval(uv);
+setobj(L,&uv->u.value,uv->v);
+uv->v=&uv->u.value;
+luaC_linkupval(L,uv);
+}
+}
+}
+static Proto*luaF_newproto(lua_State*L){
+Proto*f=luaM_new(L,Proto);
+luaC_link(L,obj2gco(f),(8+1));
+f->k=NULL;
+f->sizek=0;
+f->p=NULL;
+f->sizep=0;
+f->code=NULL;
+f->sizecode=0;
+f->sizelineinfo=0;
+f->sizeupvalues=0;
+f->nups=0;
+f->upvalues=NULL;
+f->numparams=0;
+f->is_vararg=0;
+f->maxstacksize=0;
+f->lineinfo=NULL;
+f->sizelocvars=0;
+f->locvars=NULL;
+f->linedefined=0;
+f->lastlinedefined=0;
+f->source=NULL;
+return f;
+}
+static void luaF_freeproto(lua_State*L,Proto*f){
+luaM_freearray(L,f->code,f->sizecode,Instruction);
+luaM_freearray(L,f->p,f->sizep,Proto*);
+luaM_freearray(L,f->k,f->sizek,TValue);
+luaM_freearray(L,f->lineinfo,f->sizelineinfo,int);
+luaM_freearray(L,f->locvars,f->sizelocvars,struct LocVar);
+luaM_freearray(L,f->upvalues,f->sizeupvalues,TString*);
+luaM_free(L,f);
+}
+static void luaF_freeclosure(lua_State*L,Closure*c){
+int size=(c->c.isC)?sizeCclosure(c->c.nupvalues):
+sizeLclosure(c->l.nupvalues);
+luaM_freemem(L,c,size);
+}
+#define MASK1(n,p)((~((~(Instruction)0)<<n))<<p)
+#define MASK0(n,p)(~MASK1(n,p))
+#define GET_OPCODE(i)(cast(OpCode,((i)>>0)&MASK1(6,0)))
+#define SET_OPCODE(i,o)((i)=(((i)&MASK0(6,0))|((cast(Instruction,o)<<0)&MASK1(6,0))))
+#define GETARG_A(i)(cast(int,((i)>>(0+6))&MASK1(8,0)))
+#define SETARG_A(i,u)((i)=(((i)&MASK0(8,(0+6)))|((cast(Instruction,u)<<(0+6))&MASK1(8,(0+6)))))
+#define GETARG_B(i)(cast(int,((i)>>(((0+6)+8)+9))&MASK1(9,0)))
+#define SETARG_B(i,b)((i)=(((i)&MASK0(9,(((0+6)+8)+9)))|((cast(Instruction,b)<<(((0+6)+8)+9))&MASK1(9,(((0+6)+8)+9)))))
+#define GETARG_C(i)(cast(int,((i)>>((0+6)+8))&MASK1(9,0)))
+#define SETARG_C(i,b)((i)=(((i)&MASK0(9,((0+6)+8)))|((cast(Instruction,b)<<((0+6)+8))&MASK1(9,((0+6)+8)))))
+#define GETARG_Bx(i)(cast(int,((i)>>((0+6)+8))&MASK1((9+9),0)))
+#define SETARG_Bx(i,b)((i)=(((i)&MASK0((9+9),((0+6)+8)))|((cast(Instruction,b)<<((0+6)+8))&MASK1((9+9),((0+6)+8)))))
+#define GETARG_sBx(i)(GETARG_Bx(i)-(((1<<(9+9))-1)>>1))
+#define SETARG_sBx(i,b)SETARG_Bx((i),cast(unsigned int,(b)+(((1<<(9+9))-1)>>1)))
+#define CREATE_ABC(o,a,b,c)((cast(Instruction,o)<<0)|(cast(Instruction,a)<<(0+6))|(cast(Instruction,b)<<(((0+6)+8)+9))|(cast(Instruction,c)<<((0+6)+8)))
+#define CREATE_ABx(o,a,bc)((cast(Instruction,o)<<0)|(cast(Instruction,a)<<(0+6))|(cast(Instruction,bc)<<((0+6)+8)))
+#define ISK(x)((x)&(1<<(9-1)))
+#define INDEXK(r)((int)(r)&~(1<<(9-1)))
+#define RKASK(x)((x)|(1<<(9-1)))
+static const lu_byte luaP_opmodes[(cast(int,OP_VARARG)+1)];
+#define getBMode(m)(cast(enum OpArgMask,(luaP_opmodes[m]>>4)&3))
+#define getCMode(m)(cast(enum OpArgMask,(luaP_opmodes[m]>>2)&3))
+#define testTMode(m)(luaP_opmodes[m]&(1<<7))
+typedef struct expdesc{
+expkind k;
+union{
+struct{int info,aux;}s;
+lua_Number nval;
+}u;
+int t;
+int f;
+}expdesc;
+typedef struct upvaldesc{
+lu_byte k;
+lu_byte info;
+}upvaldesc;
+struct BlockCnt;
+typedef struct FuncState{
+Proto*f;
+Table*h;
+struct FuncState*prev;
+struct LexState*ls;
+struct lua_State*L;
+struct BlockCnt*bl;
+int pc;
+int lasttarget;
+int jpc;
+int freereg;
+int nk;
+int np;
+short nlocvars;
+lu_byte nactvar;
+upvaldesc upvalues[60];
+unsigned short actvar[200];
+}FuncState;
+static Proto*luaY_parser(lua_State*L,ZIO*z,Mbuffer*buff,
+const char*name);
+struct lua_longjmp{
+struct lua_longjmp*previous;
+jmp_buf b;
+volatile int status;
+};
+static void luaD_seterrorobj(lua_State*L,int errcode,StkId oldtop){
+switch(errcode){
+case 4:{
+setsvalue(L,oldtop,luaS_newliteral(L,"not enough memory"));
+break;
+}
+case 5:{
+setsvalue(L,oldtop,luaS_newliteral(L,"error in error handling"));
+break;
+}
+case 3:
+case 2:{
+setobj(L,oldtop,L->top-1);
+break;
+}
+}
+L->top=oldtop+1;
+}
+static void restore_stack_limit(lua_State*L){
+if(L->size_ci>20000){
+int inuse=cast_int(L->ci-L->base_ci);
+if(inuse+1<20000)
+luaD_reallocCI(L,20000);
+}
+}
+static void resetstack(lua_State*L,int status){
+L->ci=L->base_ci;
+L->base=L->ci->base;
+luaF_close(L,L->base);
+luaD_seterrorobj(L,status,L->base);
+L->nCcalls=L->baseCcalls;
+L->allowhook=1;
+restore_stack_limit(L);
+L->errfunc=0;
+L->errorJmp=NULL;
+}
+static void luaD_throw(lua_State*L,int errcode){
+if(L->errorJmp){
+L->errorJmp->status=errcode;
+LUAI_THROW(L,L->errorJmp);
+}
+else{
+L->status=cast_byte(errcode);
+if(G(L)->panic){
+resetstack(L,errcode);
+G(L)->panic(L);
+}
+exit(EXIT_FAILURE);
+}
+}
+static int luaD_rawrunprotected(lua_State*L,Pfunc f,void*ud){
+struct lua_longjmp lj;
+lj.status=0;
+lj.previous=L->errorJmp;
+L->errorJmp=&lj;
+LUAI_TRY(L,&lj,
+(*f)(L,ud);
+);
+L->errorJmp=lj.previous;
+return lj.status;
+}
+static void correctstack(lua_State*L,TValue*oldstack){
+CallInfo*ci;
+GCObject*up;
+L->top=(L->top-oldstack)+L->stack;
+for(up=L->openupval;up!=NULL;up=up->gch.next)
+gco2uv(up)->v=(gco2uv(up)->v-oldstack)+L->stack;
+for(ci=L->base_ci;ci<=L->ci;ci++){
+ci->top=(ci->top-oldstack)+L->stack;
+ci->base=(ci->base-oldstack)+L->stack;
+ci->func=(ci->func-oldstack)+L->stack;
+}
+L->base=(L->base-oldstack)+L->stack;
+}
+static void luaD_reallocstack(lua_State*L,int newsize){
+TValue*oldstack=L->stack;
+int realsize=newsize+1+5;
+luaM_reallocvector(L,L->stack,L->stacksize,realsize,TValue);
+L->stacksize=realsize;
+L->stack_last=L->stack+newsize;
+correctstack(L,oldstack);
+}
+static void luaD_reallocCI(lua_State*L,int newsize){
+CallInfo*oldci=L->base_ci;
+luaM_reallocvector(L,L->base_ci,L->size_ci,newsize,CallInfo);
+L->size_ci=newsize;
+L->ci=(L->ci-oldci)+L->base_ci;
+L->end_ci=L->base_ci+L->size_ci-1;
+}
+static void luaD_growstack(lua_State*L,int n){
+if(n<=L->stacksize)
+luaD_reallocstack(L,2*L->stacksize);
+else
+luaD_reallocstack(L,L->stacksize+n);
+}
+static CallInfo*growCI(lua_State*L){
+if(L->size_ci>20000)
+luaD_throw(L,5);
+else{
+luaD_reallocCI(L,2*L->size_ci);
+if(L->size_ci>20000)
+luaG_runerror(L,"stack overflow");
+}
+return++L->ci;
+}
+static StkId adjust_varargs(lua_State*L,Proto*p,int actual){
+int i;
+int nfixargs=p->numparams;
+Table*htab=NULL;
+StkId base,fixed;
+for(;actual<nfixargs;++actual)
+setnilvalue(L->top++);
+fixed=L->top-actual;
+base=L->top;
+for(i=0;i<nfixargs;i++){
+setobj(L,L->top++,fixed+i);
+setnilvalue(fixed+i);
+}
+if(htab){
+sethvalue(L,L->top++,htab);
+}
+return base;
+}
+static StkId tryfuncTM(lua_State*L,StkId func){
+const TValue*tm=luaT_gettmbyobj(L,func,TM_CALL);
+StkId p;
+ptrdiff_t funcr=savestack(L,func);
+if(!ttisfunction(tm))
+luaG_typeerror(L,func,"call");
+for(p=L->top;p>func;p--)setobj(L,p,p-1);
+incr_top(L);
+func=restorestack(L,funcr);
+setobj(L,func,tm);
+return func;
+}
+#define inc_ci(L)((L->ci==L->end_ci)?growCI(L):(condhardstacktests(luaD_reallocCI(L,L->size_ci)),++L->ci))
+static int luaD_precall(lua_State*L,StkId func,int nresults){
+LClosure*cl;
+ptrdiff_t funcr;
+if(!ttisfunction(func))
+func=tryfuncTM(L,func);
+funcr=savestack(L,func);
+cl=&clvalue(func)->l;
+L->ci->savedpc=L->savedpc;
+if(!cl->isC){
+CallInfo*ci;
+StkId st,base;
+Proto*p=cl->p;
+luaD_checkstack(L,p->maxstacksize);
+func=restorestack(L,funcr);
+if(!p->is_vararg){
+base=func+1;
+if(L->top>base+p->numparams)
+L->top=base+p->numparams;
+}
+else{
+int nargs=cast_int(L->top-func)-1;
+base=adjust_varargs(L,p,nargs);
+func=restorestack(L,funcr);
+}
+ci=inc_ci(L);
+ci->func=func;
+L->base=ci->base=base;
+ci->top=L->base+p->maxstacksize;
+L->savedpc=p->code;
+ci->tailcalls=0;
+ci->nresults=nresults;
+for(st=L->top;st<ci->top;st++)
+setnilvalue(st);
+L->top=ci->top;
+return 0;
+}
+else{
+CallInfo*ci;
+int n;
+luaD_checkstack(L,20);
+ci=inc_ci(L);
+ci->func=restorestack(L,funcr);
+L->base=ci->base=ci->func+1;
+ci->top=L->top+20;
+ci->nresults=nresults;
+n=(*curr_func(L)->c.f)(L);
+if(n<0)
+return 2;
+else{
+luaD_poscall(L,L->top-n);
+return 1;
+}
+}
+}
+static int luaD_poscall(lua_State*L,StkId firstResult){
+StkId res;
+int wanted,i;
+CallInfo*ci;
+ci=L->ci--;
+res=ci->func;
+wanted=ci->nresults;
+L->base=(ci-1)->base;
+L->savedpc=(ci-1)->savedpc;
+for(i=wanted;i!=0&&firstResult<L->top;i--)
+setobj(L,res++,firstResult++);
+while(i-->0)
+setnilvalue(res++);
+L->top=res;
+return(wanted-(-1));
+}
+static void luaD_call(lua_State*L,StkId func,int nResults){
+if(++L->nCcalls>=200){
+if(L->nCcalls==200)
+luaG_runerror(L,"C stack overflow");
+else if(L->nCcalls>=(200+(200>>3)))
+luaD_throw(L,5);
+}
+if(luaD_precall(L,func,nResults)==0)
+luaV_execute(L,1);
+L->nCcalls--;
+luaC_checkGC(L);
+}
+static int luaD_pcall(lua_State*L,Pfunc func,void*u,
+ptrdiff_t old_top,ptrdiff_t ef){
+int status;
+unsigned short oldnCcalls=L->nCcalls;
+ptrdiff_t old_ci=saveci(L,L->ci);
+lu_byte old_allowhooks=L->allowhook;
+ptrdiff_t old_errfunc=L->errfunc;
+L->errfunc=ef;
+status=luaD_rawrunprotected(L,func,u);
+if(status!=0){
+StkId oldtop=restorestack(L,old_top);
+luaF_close(L,oldtop);
+luaD_seterrorobj(L,status,oldtop);
+L->nCcalls=oldnCcalls;
+L->ci=restoreci(L,old_ci);
+L->base=L->ci->base;
+L->savedpc=L->ci->savedpc;
+L->allowhook=old_allowhooks;
+restore_stack_limit(L);
+}
+L->errfunc=old_errfunc;
+return status;
+}
+struct SParser{
+ZIO*z;
+Mbuffer buff;
+const char*name;
+};
+static void f_parser(lua_State*L,void*ud){
+int i;
+Proto*tf;
+Closure*cl;
+struct SParser*p=cast(struct SParser*,ud);
+luaC_checkGC(L);
+tf=luaY_parser(L,p->z,
+&p->buff,p->name);
+cl=luaF_newLclosure(L,tf->nups,hvalue(gt(L)));
+cl->l.p=tf;
+for(i=0;i<tf->nups;i++)
+cl->l.upvals[i]=luaF_newupval(L);
+setclvalue(L,L->top,cl);
+incr_top(L);
+}
+static int luaD_protectedparser(lua_State*L,ZIO*z,const char*name){
+struct SParser p;
+int status;
+p.z=z;p.name=name;
+luaZ_initbuffer(L,&p.buff);
+status=luaD_pcall(L,f_parser,&p,savestack(L,L->top),L->errfunc);
+luaZ_freebuffer(L,&p.buff);
+return status;
+}
+static void luaS_resize(lua_State*L,int newsize){
+GCObject**newhash;
+stringtable*tb;
+int i;
+if(G(L)->gcstate==2)
+return;
+newhash=luaM_newvector(L,newsize,GCObject*);
+tb=&G(L)->strt;
+for(i=0;i<newsize;i++)newhash[i]=NULL;
+for(i=0;i<tb->size;i++){
+GCObject*p=tb->hash[i];
+while(p){
+GCObject*next=p->gch.next;
+unsigned int h=gco2ts(p)->hash;
+int h1=lmod(h,newsize);
+p->gch.next=newhash[h1];
+newhash[h1]=p;
+p=next;
+}
+}
+luaM_freearray(L,tb->hash,tb->size,TString*);
+tb->size=newsize;
+tb->hash=newhash;
+}
+static TString*newlstr(lua_State*L,const char*str,size_t l,
+unsigned int h){
+TString*ts;
+stringtable*tb;
+if(l+1>(((size_t)(~(size_t)0)-2)-sizeof(TString))/sizeof(char))
+luaM_toobig(L);
+ts=cast(TString*,luaM_malloc(L,(l+1)*sizeof(char)+sizeof(TString)));
+ts->tsv.len=l;
+ts->tsv.hash=h;
+ts->tsv.marked=luaC_white(G(L));
+ts->tsv.tt=4;
+ts->tsv.reserved=0;
+memcpy(ts+1,str,l*sizeof(char));
+((char*)(ts+1))[l]='\0';
+tb=&G(L)->strt;
+h=lmod(h,tb->size);
+ts->tsv.next=tb->hash[h];
+tb->hash[h]=obj2gco(ts);
+tb->nuse++;
+if(tb->nuse>cast(lu_int32,tb->size)&&tb->size<=(INT_MAX-2)/2)
+luaS_resize(L,tb->size*2);
+return ts;
+}
+static TString*luaS_newlstr(lua_State*L,const char*str,size_t l){
+GCObject*o;
+unsigned int h=cast(unsigned int,l);
+size_t step=(l>>5)+1;
+size_t l1;
+for(l1=l;l1>=step;l1-=step)
+h=h^((h<<5)+(h>>2)+cast(unsigned char,str[l1-1]));
+for(o=G(L)->strt.hash[lmod(h,G(L)->strt.size)];
+o!=NULL;
+o=o->gch.next){
+TString*ts=rawgco2ts(o);
+if(ts->tsv.len==l&&(memcmp(str,getstr(ts),l)==0)){
+if(isdead(G(L),o))changewhite(o);
+return ts;
+}
+}
+return newlstr(L,str,l,h);
+}
+static Udata*luaS_newudata(lua_State*L,size_t s,Table*e){
+Udata*u;
+if(s>((size_t)(~(size_t)0)-2)-sizeof(Udata))
+luaM_toobig(L);
+u=cast(Udata*,luaM_malloc(L,s+sizeof(Udata)));
+u->uv.marked=luaC_white(G(L));
+u->uv.tt=7;
+u->uv.len=s;
+u->uv.metatable=NULL;
+u->uv.env=e;
+u->uv.next=G(L)->mainthread->next;
+G(L)->mainthread->next=obj2gco(u);
+return u;
+}
+#define hashpow2(t,n)(gnode(t,lmod((n),sizenode(t))))
+#define hashstr(t,str)hashpow2(t,(str)->tsv.hash)
+#define hashboolean(t,p)hashpow2(t,p)
+#define hashmod(t,n)(gnode(t,((n)%((sizenode(t)-1)|1))))
+#define hashpointer(t,p)hashmod(t,IntPoint(p))
+static const Node dummynode_={
+{{NULL},0},
+{{{NULL},0,NULL}}
+};
+static Node*hashnum(const Table*t,lua_Number n){
+unsigned int a[cast_int(sizeof(lua_Number)/sizeof(int))];
+int i;
+if(luai_numeq(n,0))
+return gnode(t,0);
+memcpy(a,&n,sizeof(a));
+for(i=1;i<cast_int(sizeof(lua_Number)/sizeof(int));i++)a[0]+=a[i];
+return hashmod(t,a[0]);
+}
+static Node*mainposition(const Table*t,const TValue*key){
+switch(ttype(key)){
+case 3:
+return hashnum(t,nvalue(key));
+case 4:
+return hashstr(t,rawtsvalue(key));
+case 1:
+return hashboolean(t,bvalue(key));
+case 2:
+return hashpointer(t,pvalue(key));
+default:
+return hashpointer(t,gcvalue(key));
+}
+}
+static int arrayindex(const TValue*key){
+if(ttisnumber(key)){
+lua_Number n=nvalue(key);
+int k;
+lua_number2int(k,n);
+if(luai_numeq(cast_num(k),n))
+return k;
+}
+return-1;
+}
+static int findindex(lua_State*L,Table*t,StkId key){
+int i;
+if(ttisnil(key))return-1;
+i=arrayindex(key);
+if(0<i&&i<=t->sizearray)
+return i-1;
+else{
+Node*n=mainposition(t,key);
+do{
+if(luaO_rawequalObj(key2tval(n),key)||
+(ttype(gkey(n))==(8+3)&&iscollectable(key)&&
+gcvalue(gkey(n))==gcvalue(key))){
+i=cast_int(n-gnode(t,0));
+return i+t->sizearray;
+}
+else n=gnext(n);
+}while(n);
+luaG_runerror(L,"invalid key to "LUA_QL("next"));
+return 0;
+}
+}
+static int luaH_next(lua_State*L,Table*t,StkId key){
+int i=findindex(L,t,key);
+for(i++;i<t->sizearray;i++){
+if(!ttisnil(&t->array[i])){
+setnvalue(key,cast_num(i+1));
+setobj(L,key+1,&t->array[i]);
+return 1;
+}
+}
+for(i-=t->sizearray;i<(int)sizenode(t);i++){
+if(!ttisnil(gval(gnode(t,i)))){
+setobj(L,key,key2tval(gnode(t,i)));
+setobj(L,key+1,gval(gnode(t,i)));
+return 1;
+}
+}
+return 0;
+}
+static int computesizes(int nums[],int*narray){
+int i;
+int twotoi;
+int a=0;
+int na=0;
+int n=0;
+for(i=0,twotoi=1;twotoi/2<*narray;i++,twotoi*=2){
+if(nums[i]>0){
+a+=nums[i];
+if(a>twotoi/2){
+n=twotoi;
+na=a;
+}
+}
+if(a==*narray)break;
+}
+*narray=n;
+return na;
+}
+static int countint(const TValue*key,int*nums){
+int k=arrayindex(key);
+if(0<k&&k<=(1<<(32-2))){
+nums[ceillog2(k)]++;
+return 1;
+}
+else
+return 0;
+}
+static int numusearray(const Table*t,int*nums){
+int lg;
+int ttlg;
+int ause=0;
+int i=1;
+for(lg=0,ttlg=1;lg<=(32-2);lg++,ttlg*=2){
+int lc=0;
+int lim=ttlg;
+if(lim>t->sizearray){
+lim=t->sizearray;
+if(i>lim)
+break;
+}
+for(;i<=lim;i++){
+if(!ttisnil(&t->array[i-1]))
+lc++;
+}
+nums[lg]+=lc;
+ause+=lc;
+}
+return ause;
+}
+static int numusehash(const Table*t,int*nums,int*pnasize){
+int totaluse=0;
+int ause=0;
+int i=sizenode(t);
+while(i--){
+Node*n=&t->node[i];
+if(!ttisnil(gval(n))){
+ause+=countint(key2tval(n),nums);
+totaluse++;
+}
+}
+*pnasize+=ause;
+return totaluse;
+}
+static void setarrayvector(lua_State*L,Table*t,int size){
+int i;
+luaM_reallocvector(L,t->array,t->sizearray,size,TValue);
+for(i=t->sizearray;i<size;i++)
+setnilvalue(&t->array[i]);
+t->sizearray=size;
+}
+static void setnodevector(lua_State*L,Table*t,int size){
+int lsize;
+if(size==0){
+t->node=cast(Node*,(&dummynode_));
+lsize=0;
+}
+else{
+int i;
+lsize=ceillog2(size);
+if(lsize>(32-2))
+luaG_runerror(L,"table overflow");
+size=twoto(lsize);
+t->node=luaM_newvector(L,size,Node);
+for(i=0;i<size;i++){
+Node*n=gnode(t,i);
+gnext(n)=NULL;
+setnilvalue(gkey(n));
+setnilvalue(gval(n));
+}
+}
+t->lsizenode=cast_byte(lsize);
+t->lastfree=gnode(t,size);
+}
+static void resize(lua_State*L,Table*t,int nasize,int nhsize){
+int i;
+int oldasize=t->sizearray;
+int oldhsize=t->lsizenode;
+Node*nold=t->node;
+if(nasize>oldasize)
+setarrayvector(L,t,nasize);
+setnodevector(L,t,nhsize);
+if(nasize<oldasize){
+t->sizearray=nasize;
+for(i=nasize;i<oldasize;i++){
+if(!ttisnil(&t->array[i]))
+setobj(L,luaH_setnum(L,t,i+1),&t->array[i]);
+}
+luaM_reallocvector(L,t->array,oldasize,nasize,TValue);
+}
+for(i=twoto(oldhsize)-1;i>=0;i--){
+Node*old=nold+i;
+if(!ttisnil(gval(old)))
+setobj(L,luaH_set(L,t,key2tval(old)),gval(old));
+}
+if(nold!=(&dummynode_))
+luaM_freearray(L,nold,twoto(oldhsize),Node);
+}
+static void luaH_resizearray(lua_State*L,Table*t,int nasize){
+int nsize=(t->node==(&dummynode_))?0:sizenode(t);
+resize(L,t,nasize,nsize);
+}
+static void rehash(lua_State*L,Table*t,const TValue*ek){
+int nasize,na;
+int nums[(32-2)+1];
+int i;
+int totaluse;
+for(i=0;i<=(32-2);i++)nums[i]=0;
+nasize=numusearray(t,nums);
+totaluse=nasize;
+totaluse+=numusehash(t,nums,&nasize);
+nasize+=countint(ek,nums);
+totaluse++;
+na=computesizes(nums,&nasize);
+resize(L,t,nasize,totaluse-na);
+}
+static Table*luaH_new(lua_State*L,int narray,int nhash){
+Table*t=luaM_new(L,Table);
+luaC_link(L,obj2gco(t),5);
+t->metatable=NULL;
+t->flags=cast_byte(~0);
+t->array=NULL;
+t->sizearray=0;
+t->lsizenode=0;
+t->node=cast(Node*,(&dummynode_));
+setarrayvector(L,t,narray);
+setnodevector(L,t,nhash);
+return t;
+}
+static void luaH_free(lua_State*L,Table*t){
+if(t->node!=(&dummynode_))
+luaM_freearray(L,t->node,sizenode(t),Node);
+luaM_freearray(L,t->array,t->sizearray,TValue);
+luaM_free(L,t);
+}
+static Node*getfreepos(Table*t){
+while(t->lastfree-->t->node){
+if(ttisnil(gkey(t->lastfree)))
+return t->lastfree;
+}
+return NULL;
+}
+static TValue*newkey(lua_State*L,Table*t,const TValue*key){
+Node*mp=mainposition(t,key);
+if(!ttisnil(gval(mp))||mp==(&dummynode_)){
+Node*othern;
+Node*n=getfreepos(t);
+if(n==NULL){
+rehash(L,t,key);
+return luaH_set(L,t,key);
+}
+othern=mainposition(t,key2tval(mp));
+if(othern!=mp){
+while(gnext(othern)!=mp)othern=gnext(othern);
+gnext(othern)=n;
+*n=*mp;
+gnext(mp)=NULL;
+setnilvalue(gval(mp));
+}
+else{
+gnext(n)=gnext(mp);
+gnext(mp)=n;
+mp=n;
+}
+}
+gkey(mp)->value=key->value;gkey(mp)->tt=key->tt;
+luaC_barriert(L,t,key);
+return gval(mp);
+}
+static const TValue*luaH_getnum(Table*t,int key){
+if(cast(unsigned int,key-1)<cast(unsigned int,t->sizearray))
+return&t->array[key-1];
+else{
+lua_Number nk=cast_num(key);
+Node*n=hashnum(t,nk);
+do{
+if(ttisnumber(gkey(n))&&luai_numeq(nvalue(gkey(n)),nk))
+return gval(n);
+else n=gnext(n);
+}while(n);
+return(&luaO_nilobject_);
+}
+}
+static const TValue*luaH_getstr(Table*t,TString*key){
+Node*n=hashstr(t,key);
+do{
+if(ttisstring(gkey(n))&&rawtsvalue(gkey(n))==key)
+return gval(n);
+else n=gnext(n);
+}while(n);
+return(&luaO_nilobject_);
+}
+static const TValue*luaH_get(Table*t,const TValue*key){
+switch(ttype(key)){
+case 0:return(&luaO_nilobject_);
+case 4:return luaH_getstr(t,rawtsvalue(key));
+case 3:{
+int k;
+lua_Number n=nvalue(key);
+lua_number2int(k,n);
+if(luai_numeq(cast_num(k),nvalue(key)))
+return luaH_getnum(t,k);
+}
+default:{
+Node*n=mainposition(t,key);
+do{
+if(luaO_rawequalObj(key2tval(n),key))
+return gval(n);
+else n=gnext(n);
+}while(n);
+return(&luaO_nilobject_);
+}
+}
+}
+static TValue*luaH_set(lua_State*L,Table*t,const TValue*key){
+const TValue*p=luaH_get(t,key);
+t->flags=0;
+if(p!=(&luaO_nilobject_))
+return cast(TValue*,p);
+else{
+if(ttisnil(key))luaG_runerror(L,"table index is nil");
+else if(ttisnumber(key)&&luai_numisnan(nvalue(key)))
+luaG_runerror(L,"table index is NaN");
+return newkey(L,t,key);
+}
+}
+static TValue*luaH_setnum(lua_State*L,Table*t,int key){
+const TValue*p=luaH_getnum(t,key);
+if(p!=(&luaO_nilobject_))
+return cast(TValue*,p);
+else{
+TValue k;
+setnvalue(&k,cast_num(key));
+return newkey(L,t,&k);
+}
+}
+static TValue*luaH_setstr(lua_State*L,Table*t,TString*key){
+const TValue*p=luaH_getstr(t,key);
+if(p!=(&luaO_nilobject_))
+return cast(TValue*,p);
+else{
+TValue k;
+setsvalue(L,&k,key);
+return newkey(L,t,&k);
+}
+}
+static int unbound_search(Table*t,unsigned int j){
+unsigned int i=j;
+j++;
+while(!ttisnil(luaH_getnum(t,j))){
+i=j;
+j*=2;
+if(j>cast(unsigned int,(INT_MAX-2))){
+i=1;
+while(!ttisnil(luaH_getnum(t,i)))i++;
+return i-1;
+}
+}
+while(j-i>1){
+unsigned int m=(i+j)/2;
+if(ttisnil(luaH_getnum(t,m)))j=m;
+else i=m;
+}
+return i;
+}
+static int luaH_getn(Table*t){
+unsigned int j=t->sizearray;
+if(j>0&&ttisnil(&t->array[j-1])){
+unsigned int i=0;
+while(j-i>1){
+unsigned int m=(i+j)/2;
+if(ttisnil(&t->array[m-1]))j=m;
+else i=m;
+}
+return i;
+}
+else if(t->node==(&dummynode_))
+return j;
+else return unbound_search(t,j);
+}
+#define makewhite(g,x)((x)->gch.marked=cast_byte(((x)->gch.marked&cast_byte(~(bitmask(2)|bit2mask(0,1))))|luaC_white(g)))
+#define white2gray(x)reset2bits((x)->gch.marked,0,1)
+#define black2gray(x)resetbit((x)->gch.marked,2)
+#define stringmark(s)reset2bits((s)->tsv.marked,0,1)
+#define isfinalized(u)testbit((u)->marked,3)
+#define markfinalized(u)l_setbit((u)->marked,3)
+#define markvalue(g,o){checkconsistency(o);if(iscollectable(o)&&iswhite(gcvalue(o)))reallymarkobject(g,gcvalue(o));}
+#define markobject(g,t){if(iswhite(obj2gco(t)))reallymarkobject(g,obj2gco(t));}
+#define setthreshold(g)(g->GCthreshold=(g->estimate/100)*g->gcpause)
+static void removeentry(Node*n){
+if(iscollectable(gkey(n)))
+setttype(gkey(n),(8+3));
+}
+static void reallymarkobject(global_State*g,GCObject*o){
+white2gray(o);
+switch(o->gch.tt){
+case 4:{
+return;
+}
+case 7:{
+Table*mt=gco2u(o)->metatable;
+gray2black(o);
+if(mt)markobject(g,mt);
+markobject(g,gco2u(o)->env);
+return;
+}
+case(8+2):{
+UpVal*uv=gco2uv(o);
+markvalue(g,uv->v);
+if(uv->v==&uv->u.value)
+gray2black(o);
+return;
+}
+case 6:{
+gco2cl(o)->c.gclist=g->gray;
+g->gray=o;
+break;
+}
+case 5:{
+gco2h(o)->gclist=g->gray;
+g->gray=o;
+break;
+}
+case 8:{
+gco2th(o)->gclist=g->gray;
+g->gray=o;
+break;
+}
+case(8+1):{
+gco2p(o)->gclist=g->gray;
+g->gray=o;
+break;
+}
+default:;
+}
+}
+static void marktmu(global_State*g){
+GCObject*u=g->tmudata;
+if(u){
+do{
+u=u->gch.next;
+makewhite(g,u);
+reallymarkobject(g,u);
+}while(u!=g->tmudata);
+}
+}
+static size_t luaC_separateudata(lua_State*L,int all){
+global_State*g=G(L);
+size_t deadmem=0;
+GCObject**p=&g->mainthread->next;
+GCObject*curr;
+while((curr=*p)!=NULL){
+if(!(iswhite(curr)||all)||isfinalized(gco2u(curr)))
+p=&curr->gch.next;
+else if(fasttm(L,gco2u(curr)->metatable,TM_GC)==NULL){
+markfinalized(gco2u(curr));
+p=&curr->gch.next;
+}
+else{
+deadmem+=sizeudata(gco2u(curr));
+markfinalized(gco2u(curr));
+*p=curr->gch.next;
+if(g->tmudata==NULL)
+g->tmudata=curr->gch.next=curr;
+else{
+curr->gch.next=g->tmudata->gch.next;
+g->tmudata->gch.next=curr;
+g->tmudata=curr;
+}
+}
+}
+return deadmem;
+}
+static int traversetable(global_State*g,Table*h){
+int i;
+int weakkey=0;
+int weakvalue=0;
+const TValue*mode;
+if(h->metatable)
+markobject(g,h->metatable);
+mode=gfasttm(g,h->metatable,TM_MODE);
+if(mode&&ttisstring(mode)){
+weakkey=(strchr(svalue(mode),'k')!=NULL);
+weakvalue=(strchr(svalue(mode),'v')!=NULL);
+if(weakkey||weakvalue){
+h->marked&=~(bitmask(3)|bitmask(4));
+h->marked|=cast_byte((weakkey<<3)|
+(weakvalue<<4));
+h->gclist=g->weak;
+g->weak=obj2gco(h);
+}
+}
+if(weakkey&&weakvalue)return 1;
+if(!weakvalue){
+i=h->sizearray;
+while(i--)
+markvalue(g,&h->array[i]);
+}
+i=sizenode(h);
+while(i--){
+Node*n=gnode(h,i);
+if(ttisnil(gval(n)))
+removeentry(n);
+else{
+if(!weakkey)markvalue(g,gkey(n));
+if(!weakvalue)markvalue(g,gval(n));
+}
+}
+return weakkey||weakvalue;
+}
+static void traverseproto(global_State*g,Proto*f){
+int i;
+if(f->source)stringmark(f->source);
+for(i=0;i<f->sizek;i++)
+markvalue(g,&f->k[i]);
+for(i=0;i<f->sizeupvalues;i++){
+if(f->upvalues[i])
+stringmark(f->upvalues[i]);
+}
+for(i=0;i<f->sizep;i++){
+if(f->p[i])
+markobject(g,f->p[i]);
+}
+for(i=0;i<f->sizelocvars;i++){
+if(f->locvars[i].varname)
+stringmark(f->locvars[i].varname);
+}
+}
+static void traverseclosure(global_State*g,Closure*cl){
+markobject(g,cl->c.env);
+if(cl->c.isC){
+int i;
+for(i=0;i<cl->c.nupvalues;i++)
+markvalue(g,&cl->c.upvalue[i]);
+}
+else{
+int i;
+markobject(g,cl->l.p);
+for(i=0;i<cl->l.nupvalues;i++)
+markobject(g,cl->l.upvals[i]);
+}
+}
+static void checkstacksizes(lua_State*L,StkId max){
+int ci_used=cast_int(L->ci-L->base_ci);
+int s_used=cast_int(max-L->stack);
+if(L->size_ci>20000)
+return;
+if(4*ci_used<L->size_ci&&2*8<L->size_ci)
+luaD_reallocCI(L,L->size_ci/2);
+condhardstacktests(luaD_reallocCI(L,ci_used+1));
+if(4*s_used<L->stacksize&&
+2*((2*20)+5)<L->stacksize)
+luaD_reallocstack(L,L->stacksize/2);
+condhardstacktests(luaD_reallocstack(L,s_used));
+}
+static void traversestack(global_State*g,lua_State*l){
+StkId o,lim;
+CallInfo*ci;
+markvalue(g,gt(l));
+lim=l->top;
+for(ci=l->base_ci;ci<=l->ci;ci++){
+if(lim<ci->top)lim=ci->top;
+}
+for(o=l->stack;o<l->top;o++)
+markvalue(g,o);
+for(;o<=lim;o++)
+setnilvalue(o);
+checkstacksizes(l,lim);
+}
+static l_mem propagatemark(global_State*g){
+GCObject*o=g->gray;
+gray2black(o);
+switch(o->gch.tt){
+case 5:{
+Table*h=gco2h(o);
+g->gray=h->gclist;
+if(traversetable(g,h))
+black2gray(o);
+return sizeof(Table)+sizeof(TValue)*h->sizearray+
+sizeof(Node)*sizenode(h);
+}
+case 6:{
+Closure*cl=gco2cl(o);
+g->gray=cl->c.gclist;
+traverseclosure(g,cl);
+return(cl->c.isC)?sizeCclosure(cl->c.nupvalues):
+sizeLclosure(cl->l.nupvalues);
+}
+case 8:{
+lua_State*th=gco2th(o);
+g->gray=th->gclist;
+th->gclist=g->grayagain;
+g->grayagain=o;
+black2gray(o);
+traversestack(g,th);
+return sizeof(lua_State)+sizeof(TValue)*th->stacksize+
+sizeof(CallInfo)*th->size_ci;
+}
+case(8+1):{
+Proto*p=gco2p(o);
+g->gray=p->gclist;
+traverseproto(g,p);
+return sizeof(Proto)+sizeof(Instruction)*p->sizecode+
+sizeof(Proto*)*p->sizep+
+sizeof(TValue)*p->sizek+
+sizeof(int)*p->sizelineinfo+
+sizeof(LocVar)*p->sizelocvars+
+sizeof(TString*)*p->sizeupvalues;
+}
+default:return 0;
+}
+}
+static size_t propagateall(global_State*g){
+size_t m=0;
+while(g->gray)m+=propagatemark(g);
+return m;
+}
+static int iscleared(const TValue*o,int iskey){
+if(!iscollectable(o))return 0;
+if(ttisstring(o)){
+stringmark(rawtsvalue(o));
+return 0;
+}
+return iswhite(gcvalue(o))||
+(ttisuserdata(o)&&(!iskey&&isfinalized(uvalue(o))));
+}
+static void cleartable(GCObject*l){
+while(l){
+Table*h=gco2h(l);
+int i=h->sizearray;
+if(testbit(h->marked,4)){
+while(i--){
+TValue*o=&h->array[i];
+if(iscleared(o,0))
+setnilvalue(o);
+}
+}
+i=sizenode(h);
+while(i--){
+Node*n=gnode(h,i);
+if(!ttisnil(gval(n))&&
+(iscleared(key2tval(n),1)||iscleared(gval(n),0))){
+setnilvalue(gval(n));
+removeentry(n);
+}
+}
+l=h->gclist;
+}
+}
+static void freeobj(lua_State*L,GCObject*o){
+switch(o->gch.tt){
+case(8+1):luaF_freeproto(L,gco2p(o));break;
+case 6:luaF_freeclosure(L,gco2cl(o));break;
+case(8+2):luaF_freeupval(L,gco2uv(o));break;
+case 5:luaH_free(L,gco2h(o));break;
+case 8:{
+luaE_freethread(L,gco2th(o));
+break;
+}
+case 4:{
+G(L)->strt.nuse--;
+luaM_freemem(L,o,sizestring(gco2ts(o)));
+break;
+}
+case 7:{
+luaM_freemem(L,o,sizeudata(gco2u(o)));
+break;
+}
+default:;
+}
+}
+#define sweepwholelist(L,p)sweeplist(L,p,((lu_mem)(~(lu_mem)0)-2))
+static GCObject**sweeplist(lua_State*L,GCObject**p,lu_mem count){
+GCObject*curr;
+global_State*g=G(L);
+int deadmask=otherwhite(g);
+while((curr=*p)!=NULL&&count-->0){
+if(curr->gch.tt==8)
+sweepwholelist(L,&gco2th(curr)->openupval);
+if((curr->gch.marked^bit2mask(0,1))&deadmask){
+makewhite(g,curr);
+p=&curr->gch.next;
+}
+else{
+*p=curr->gch.next;
+if(curr==g->rootgc)
+g->rootgc=curr->gch.next;
+freeobj(L,curr);
+}
+}
+return p;
+}
+static void checkSizes(lua_State*L){
+global_State*g=G(L);
+if(g->strt.nuse<cast(lu_int32,g->strt.size/4)&&
+g->strt.size>32*2)
+luaS_resize(L,g->strt.size/2);
+if(luaZ_sizebuffer(&g->buff)>32*2){
+size_t newsize=luaZ_sizebuffer(&g->buff)/2;
+luaZ_resizebuffer(L,&g->buff,newsize);
+}
+}
+static void GCTM(lua_State*L){
+global_State*g=G(L);
+GCObject*o=g->tmudata->gch.next;
+Udata*udata=rawgco2u(o);
+const TValue*tm;
+if(o==g->tmudata)
+g->tmudata=NULL;
+else
+g->tmudata->gch.next=udata->uv.next;
+udata->uv.next=g->mainthread->next;
+g->mainthread->next=o;
+makewhite(g,o);
+tm=fasttm(L,udata->uv.metatable,TM_GC);
+if(tm!=NULL){
+lu_byte oldah=L->allowhook;
+lu_mem oldt=g->GCthreshold;
+L->allowhook=0;
+g->GCthreshold=2*g->totalbytes;
+setobj(L,L->top,tm);
+setuvalue(L,L->top+1,udata);
+L->top+=2;
+luaD_call(L,L->top-2,0);
+L->allowhook=oldah;
+g->GCthreshold=oldt;
+}
+}
+static void luaC_callGCTM(lua_State*L){
+while(G(L)->tmudata)
+GCTM(L);
+}
+static void luaC_freeall(lua_State*L){
+global_State*g=G(L);
+int i;
+g->currentwhite=bit2mask(0,1)|bitmask(6);
+sweepwholelist(L,&g->rootgc);
+for(i=0;i<g->strt.size;i++)
+sweepwholelist(L,&g->strt.hash[i]);
+}
+static void markmt(global_State*g){
+int i;
+for(i=0;i<(8+1);i++)
+if(g->mt[i])markobject(g,g->mt[i]);
+}
+static void markroot(lua_State*L){
+global_State*g=G(L);
+g->gray=NULL;
+g->grayagain=NULL;
+g->weak=NULL;
+markobject(g,g->mainthread);
+markvalue(g,gt(g->mainthread));
+markvalue(g,registry(L));
+markmt(g);
+g->gcstate=1;
+}
+static void remarkupvals(global_State*g){
+UpVal*uv;
+for(uv=g->uvhead.u.l.next;uv!=&g->uvhead;uv=uv->u.l.next){
+if(isgray(obj2gco(uv)))
+markvalue(g,uv->v);
+}
+}
+static void atomic(lua_State*L){
+global_State*g=G(L);
+size_t udsize;
+remarkupvals(g);
+propagateall(g);
+g->gray=g->weak;
+g->weak=NULL;
+markobject(g,L);
+markmt(g);
+propagateall(g);
+g->gray=g->grayagain;
+g->grayagain=NULL;
+propagateall(g);
+udsize=luaC_separateudata(L,0);
+marktmu(g);
+udsize+=propagateall(g);
+cleartable(g->weak);
+g->currentwhite=cast_byte(otherwhite(g));
+g->sweepstrgc=0;
+g->sweepgc=&g->rootgc;
+g->gcstate=2;
+g->estimate=g->totalbytes-udsize;
+}
+static l_mem singlestep(lua_State*L){
+global_State*g=G(L);
+switch(g->gcstate){
+case 0:{
+markroot(L);
+return 0;
+}
+case 1:{
+if(g->gray)
+return propagatemark(g);
+else{
+atomic(L);
+return 0;
+}
+}
+case 2:{
+lu_mem old=g->totalbytes;
+sweepwholelist(L,&g->strt.hash[g->sweepstrgc++]);
+if(g->sweepstrgc>=g->strt.size)
+g->gcstate=3;
+g->estimate-=old-g->totalbytes;
+return 10;
+}
+case 3:{
+lu_mem old=g->totalbytes;
+g->sweepgc=sweeplist(L,g->sweepgc,40);
+if(*g->sweepgc==NULL){
+checkSizes(L);
+g->gcstate=4;
+}
+g->estimate-=old-g->totalbytes;
+return 40*10;
+}
+case 4:{
+if(g->tmudata){
+GCTM(L);
+if(g->estimate>100)
+g->estimate-=100;
+return 100;
+}
+else{
+g->gcstate=0;
+g->gcdept=0;
+return 0;
+}
+}
+default:return 0;
+}
+}
+static void luaC_step(lua_State*L){
+global_State*g=G(L);
+l_mem lim=(1024u/100)*g->gcstepmul;
+if(lim==0)
+lim=(((lu_mem)(~(lu_mem)0)-2)-1)/2;
+g->gcdept+=g->totalbytes-g->GCthreshold;
+do{
+lim-=singlestep(L);
+if(g->gcstate==0)
+break;
+}while(lim>0);
+if(g->gcstate!=0){
+if(g->gcdept<1024u)
+g->GCthreshold=g->totalbytes+1024u;
+else{
+g->gcdept-=1024u;
+g->GCthreshold=g->totalbytes;
+}
+}
+else{
+setthreshold(g);
+}
+}
+static void luaC_barrierf(lua_State*L,GCObject*o,GCObject*v){
+global_State*g=G(L);
+if(g->gcstate==1)
+reallymarkobject(g,v);
+else
+makewhite(g,o);
+}
+static void luaC_barrierback(lua_State*L,Table*t){
+global_State*g=G(L);
+GCObject*o=obj2gco(t);
+black2gray(o);
+t->gclist=g->grayagain;
+g->grayagain=o;
+}
+static void luaC_link(lua_State*L,GCObject*o,lu_byte tt){
+global_State*g=G(L);
+o->gch.next=g->rootgc;
+g->rootgc=o;
+o->gch.marked=luaC_white(g);
+o->gch.tt=tt;
+}
+static void luaC_linkupval(lua_State*L,UpVal*uv){
+global_State*g=G(L);
+GCObject*o=obj2gco(uv);
+o->gch.next=g->rootgc;
+g->rootgc=o;
+if(isgray(o)){
+if(g->gcstate==1){
+gray2black(o);
+luaC_barrier(L,uv,uv->v);
+}
+else{
+makewhite(g,o);
+}
+}
+}
+typedef union{
+lua_Number r;
+TString*ts;
+}SemInfo;
+typedef struct Token{
+int token;
+SemInfo seminfo;
+}Token;
+typedef struct LexState{
+int current;
+int linenumber;
+int lastline;
+Token t;
+Token lookahead;
+struct FuncState*fs;
+struct lua_State*L;
+ZIO*z;
+Mbuffer*buff;
+TString*source;
+char decpoint;
+}LexState;
+static void luaX_init(lua_State*L);
+static void luaX_lexerror(LexState*ls,const char*msg,int token);
+#define state_size(x)(sizeof(x)+0)
+#define fromstate(l)(cast(lu_byte*,(l))-0)
+#define tostate(l)(cast(lua_State*,cast(lu_byte*,l)+0))
+typedef struct LG{
+lua_State l;
+global_State g;
+}LG;
+static void stack_init(lua_State*L1,lua_State*L){
+L1->base_ci=luaM_newvector(L,8,CallInfo);
+L1->ci=L1->base_ci;
+L1->size_ci=8;
+L1->end_ci=L1->base_ci+L1->size_ci-1;
+L1->stack=luaM_newvector(L,(2*20)+5,TValue);
+L1->stacksize=(2*20)+5;
+L1->top=L1->stack;
+L1->stack_last=L1->stack+(L1->stacksize-5)-1;
+L1->ci->func=L1->top;
+setnilvalue(L1->top++);
+L1->base=L1->ci->base=L1->top;
+L1->ci->top=L1->top+20;
+}
+static void freestack(lua_State*L,lua_State*L1){
+luaM_freearray(L,L1->base_ci,L1->size_ci,CallInfo);
+luaM_freearray(L,L1->stack,L1->stacksize,TValue);
+}
+static void f_luaopen(lua_State*L,void*ud){
+global_State*g=G(L);
+UNUSED(ud);
+stack_init(L,L);
+sethvalue(L,gt(L),luaH_new(L,0,2));
+sethvalue(L,registry(L),luaH_new(L,0,2));
+luaS_resize(L,32);
+luaT_init(L);
+luaX_init(L);
+luaS_fix(luaS_newliteral(L,"not enough memory"));
+g->GCthreshold=4*g->totalbytes;
+}
+static void preinit_state(lua_State*L,global_State*g){
+G(L)=g;
+L->stack=NULL;
+L->stacksize=0;
+L->errorJmp=NULL;
+L->hook=NULL;
+L->hookmask=0;
+L->basehookcount=0;
+L->allowhook=1;
+resethookcount(L);
+L->openupval=NULL;
+L->size_ci=0;
+L->nCcalls=L->baseCcalls=0;
+L->status=0;
+L->base_ci=L->ci=NULL;
+L->savedpc=NULL;
+L->errfunc=0;
+setnilvalue(gt(L));
+}
+static void close_state(lua_State*L){
+global_State*g=G(L);
+luaF_close(L,L->stack);
+luaC_freeall(L);
+luaM_freearray(L,G(L)->strt.hash,G(L)->strt.size,TString*);
+luaZ_freebuffer(L,&g->buff);
+freestack(L,L);
+(*g->frealloc)(g->ud,fromstate(L),state_size(LG),0);
+}
+static void luaE_freethread(lua_State*L,lua_State*L1){
+luaF_close(L1,L1->stack);
+freestack(L,L1);
+luaM_freemem(L,fromstate(L1),state_size(lua_State));
+}
+static lua_State*lua_newstate(lua_Alloc f,void*ud){
+int i;
+lua_State*L;
+global_State*g;
+void*l=(*f)(ud,NULL,0,state_size(LG));
+if(l==NULL)return NULL;
+L=tostate(l);
+g=&((LG*)L)->g;
+L->next=NULL;
+L->tt=8;
+g->currentwhite=bit2mask(0,5);
+L->marked=luaC_white(g);
+set2bits(L->marked,5,6);
+preinit_state(L,g);
+g->frealloc=f;
+g->ud=ud;
+g->mainthread=L;
+g->uvhead.u.l.prev=&g->uvhead;
+g->uvhead.u.l.next=&g->uvhead;
+g->GCthreshold=0;
+g->strt.size=0;
+g->strt.nuse=0;
+g->strt.hash=NULL;
+setnilvalue(registry(L));
+luaZ_initbuffer(L,&g->buff);
+g->panic=NULL;
+g->gcstate=0;
+g->rootgc=obj2gco(L);
+g->sweepstrgc=0;
+g->sweepgc=&g->rootgc;
+g->gray=NULL;
+g->grayagain=NULL;
+g->weak=NULL;
+g->tmudata=NULL;
+g->totalbytes=sizeof(LG);
+g->gcpause=200;
+g->gcstepmul=200;
+g->gcdept=0;
+for(i=0;i<(8+1);i++)g->mt[i]=NULL;
+if(luaD_rawrunprotected(L,f_luaopen,NULL)!=0){
+close_state(L);
+L=NULL;
+}
+else
+{}
+return L;
+}
+static void callallgcTM(lua_State*L,void*ud){
+UNUSED(ud);
+luaC_callGCTM(L);
+}
+static void lua_close(lua_State*L){
+L=G(L)->mainthread;
+luaF_close(L,L->stack);
+luaC_separateudata(L,1);
+L->errfunc=0;
+do{
+L->ci=L->base_ci;
+L->base=L->top=L->ci->base;
+L->nCcalls=L->baseCcalls=0;
+}while(luaD_rawrunprotected(L,callallgcTM,NULL)!=0);
+close_state(L);
+}
+#define getcode(fs,e)((fs)->f->code[(e)->u.s.info])
+#define luaK_codeAsBx(fs,o,A,sBx)luaK_codeABx(fs,o,A,(sBx)+(((1<<(9+9))-1)>>1))
+#define luaK_setmultret(fs,e)luaK_setreturns(fs,e,(-1))
+static int luaK_codeABx(FuncState*fs,OpCode o,int A,unsigned int Bx);
+static int luaK_codeABC(FuncState*fs,OpCode o,int A,int B,int C);
+static void luaK_setreturns(FuncState*fs,expdesc*e,int nresults);
+static void luaK_patchtohere(FuncState*fs,int list);
+static void luaK_concat(FuncState*fs,int*l1,int l2);
+static int currentpc(lua_State*L,CallInfo*ci){
+if(!isLua(ci))return-1;
+if(ci==L->ci)
+ci->savedpc=L->savedpc;
+return pcRel(ci->savedpc,ci_func(ci)->l.p);
+}
+static int currentline(lua_State*L,CallInfo*ci){
+int pc=currentpc(L,ci);
+if(pc<0)
+return-1;
+else
+return getline_(ci_func(ci)->l.p,pc);
+}
+static int lua_getstack(lua_State*L,int level,lua_Debug*ar){
+int status;
+CallInfo*ci;
+for(ci=L->ci;level>0&&ci>L->base_ci;ci--){
+level--;
+if(f_isLua(ci))
+level-=ci->tailcalls;
+}
+if(level==0&&ci>L->base_ci){
+status=1;
+ar->i_ci=cast_int(ci-L->base_ci);
+}
+else if(level<0){
+status=1;
+ar->i_ci=0;
+}
+else status=0;
+return status;
+}
+static Proto*getluaproto(CallInfo*ci){
+return(isLua(ci)?ci_func(ci)->l.p:NULL);
+}
+static void funcinfo(lua_Debug*ar,Closure*cl){
+if(cl->c.isC){
+ar->source="=[C]";
+ar->linedefined=-1;
+ar->lastlinedefined=-1;
+ar->what="C";
+}
+else{
+ar->source=getstr(cl->l.p->source);
+ar->linedefined=cl->l.p->linedefined;
+ar->lastlinedefined=cl->l.p->lastlinedefined;
+ar->what=(ar->linedefined==0)?"main":"Lua";
+}
+luaO_chunkid(ar->short_src,ar->source,60);
+}
+static void info_tailcall(lua_Debug*ar){
+ar->name=ar->namewhat="";
+ar->what="tail";
+ar->lastlinedefined=ar->linedefined=ar->currentline=-1;
+ar->source="=(tail call)";
+luaO_chunkid(ar->short_src,ar->source,60);
+ar->nups=0;
+}
+static void collectvalidlines(lua_State*L,Closure*f){
+if(f==NULL||f->c.isC){
+setnilvalue(L->top);
+}
+else{
+Table*t=luaH_new(L,0,0);
+int*lineinfo=f->l.p->lineinfo;
+int i;
+for(i=0;i<f->l.p->sizelineinfo;i++)
+setbvalue(luaH_setnum(L,t,lineinfo[i]),1);
+sethvalue(L,L->top,t);
+}
+incr_top(L);
+}
+static int auxgetinfo(lua_State*L,const char*what,lua_Debug*ar,
+Closure*f,CallInfo*ci){
+int status=1;
+if(f==NULL){
+info_tailcall(ar);
+return status;
+}
+for(;*what;what++){
+switch(*what){
+case'S':{
+funcinfo(ar,f);
+break;
+}
+case'l':{
+ar->currentline=(ci)?currentline(L,ci):-1;
+break;
+}
+case'u':{
+ar->nups=f->c.nupvalues;
+break;
+}
+case'n':{
+ar->namewhat=(ci)?NULL:NULL;
+if(ar->namewhat==NULL){
+ar->namewhat="";
+ar->name=NULL;
+}
+break;
+}
+case'L':
+case'f':
+break;
+default:status=0;
+}
+}
+return status;
+}
+static int lua_getinfo(lua_State*L,const char*what,lua_Debug*ar){
+int status;
+Closure*f=NULL;
+CallInfo*ci=NULL;
+if(*what=='>'){
+StkId func=L->top-1;
+luai_apicheck(L,ttisfunction(func));
+what++;
+f=clvalue(func);
+L->top--;
+}
+else if(ar->i_ci!=0){
+ci=L->base_ci+ar->i_ci;
+f=clvalue(ci->func);
+}
+status=auxgetinfo(L,what,ar,f,ci);
+if(strchr(what,'f')){
+if(f==NULL)setnilvalue(L->top);
+else setclvalue(L,L->top,f);
+incr_top(L);
+}
+if(strchr(what,'L'))
+collectvalidlines(L,f);
+return status;
+}
+static int isinstack(CallInfo*ci,const TValue*o){
+StkId p;
+for(p=ci->base;p<ci->top;p++)
+if(o==p)return 1;
+return 0;
+}
+static void luaG_typeerror(lua_State*L,const TValue*o,const char*op){
+const char*name=NULL;
+const char*t=luaT_typenames[ttype(o)];
+const char*kind=(isinstack(L->ci,o))?
+NULL:
+NULL;
+if(kind)
+luaG_runerror(L,"attempt to %s %s "LUA_QL("%s")" (a %s value)",
+op,kind,name,t);
+else
+luaG_runerror(L,"attempt to %s a %s value",op,t);
+}
+static void luaG_concaterror(lua_State*L,StkId p1,StkId p2){
+if(ttisstring(p1)||ttisnumber(p1))p1=p2;
+luaG_typeerror(L,p1,"concatenate");
+}
+static void luaG_aritherror(lua_State*L,const TValue*p1,const TValue*p2){
+TValue temp;
+if(luaV_tonumber(p1,&temp)==NULL)
+p2=p1;
+luaG_typeerror(L,p2,"perform arithmetic on");
+}
+static int luaG_ordererror(lua_State*L,const TValue*p1,const TValue*p2){
+const char*t1=luaT_typenames[ttype(p1)];
+const char*t2=luaT_typenames[ttype(p2)];
+if(t1[2]==t2[2])
+luaG_runerror(L,"attempt to compare two %s values",t1);
+else
+luaG_runerror(L,"attempt to compare %s with %s",t1,t2);
+return 0;
+}
+static void addinfo(lua_State*L,const char*msg){
+CallInfo*ci=L->ci;
+if(isLua(ci)){
+char buff[60];
+int line=currentline(L,ci);
+luaO_chunkid(buff,getstr(getluaproto(ci)->source),60);
+luaO_pushfstring(L,"%s:%d: %s",buff,line,msg);
+}
+}
+static void luaG_errormsg(lua_State*L){
+if(L->errfunc!=0){
+StkId errfunc=restorestack(L,L->errfunc);
+if(!ttisfunction(errfunc))luaD_throw(L,5);
+setobj(L,L->top,L->top-1);
+setobj(L,L->top-1,errfunc);
+incr_top(L);
+luaD_call(L,L->top-2,1);
+}
+luaD_throw(L,2);
+}
+static void luaG_runerror(lua_State*L,const char*fmt,...){
+va_list argp;
+va_start(argp,fmt);
+addinfo(L,luaO_pushvfstring(L,fmt,argp));
+va_end(argp);
+luaG_errormsg(L);
+}
+static int luaZ_fill(ZIO*z){
+size_t size;
+lua_State*L=z->L;
+const char*buff;
+buff=z->reader(L,z->data,&size);
+if(buff==NULL||size==0)return(-1);
+z->n=size-1;
+z->p=buff;
+return char2int(*(z->p++));
+}
+static void luaZ_init(lua_State*L,ZIO*z,lua_Reader reader,void*data){
+z->L=L;
+z->reader=reader;
+z->data=data;
+z->n=0;
+z->p=NULL;
+}
+static char*luaZ_openspace(lua_State*L,Mbuffer*buff,size_t n){
+if(n>buff->buffsize){
+if(n<32)n=32;
+luaZ_resizebuffer(L,buff,n);
+}
+return buff->buffer;
+}
+#define opmode(t,a,b,c,m)(((t)<<7)|((a)<<6)|((b)<<4)|((c)<<2)|(m))
+static const lu_byte luaP_opmodes[(cast(int,OP_VARARG)+1)]={
+opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgK,OpArgN,iABx)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgU,OpArgN,iABC)
+,opmode(0,1,OpArgK,OpArgN,iABx)
+,opmode(0,1,OpArgR,OpArgK,iABC)
+,opmode(0,0,OpArgK,OpArgN,iABx)
+,opmode(0,0,OpArgU,OpArgN,iABC)
+,opmode(0,0,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,1,OpArgR,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgR,iABC)
+,opmode(0,0,OpArgR,OpArgN,iAsBx)
+,opmode(1,0,OpArgK,OpArgK,iABC)
+,opmode(1,0,OpArgK,OpArgK,iABC)
+,opmode(1,0,OpArgK,OpArgK,iABC)
+,opmode(1,1,OpArgR,OpArgU,iABC)
+,opmode(1,1,OpArgR,OpArgU,iABC)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,0,OpArgU,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgN,iAsBx)
+,opmode(0,1,OpArgR,OpArgN,iAsBx)
+,opmode(1,0,OpArgN,OpArgU,iABC)
+,opmode(0,0,OpArgU,OpArgU,iABC)
+,opmode(0,0,OpArgN,OpArgN,iABC)
+,opmode(0,1,OpArgU,OpArgN,iABx)
+,opmode(0,1,OpArgU,OpArgN,iABC)
+};
+#define next(ls)(ls->current=zgetc(ls->z))
+#define currIsNewline(ls)(ls->current=='\n'||ls->current=='\r')
+static const char*const luaX_tokens[]={
+"and","break","do","else","elseif",
+"end","false","for","function","if",
+"in","local","nil","not","or","repeat",
+"return","then","true","until","while",
+"..","...","==",">=","<=","~=",
+"<number>","<name>","<string>","<eof>",
+NULL
+};
+#define save_and_next(ls)(save(ls,ls->current),next(ls))
+static void save(LexState*ls,int c){
+Mbuffer*b=ls->buff;
+if(b->n+1>b->buffsize){
+size_t newsize;
+if(b->buffsize>=((size_t)(~(size_t)0)-2)/2)
+luaX_lexerror(ls,"lexical element too long",0);
+newsize=b->buffsize*2;
+luaZ_resizebuffer(ls->L,b,newsize);
+}
+b->buffer[b->n++]=cast(char,c);
+}
+static void luaX_init(lua_State*L){
+int i;
+for(i=0;i<(cast(int,TK_WHILE-257+1));i++){
+TString*ts=luaS_new(L,luaX_tokens[i]);
+luaS_fix(ts);
+ts->tsv.reserved=cast_byte(i+1);
+}
+}
+static const char*luaX_token2str(LexState*ls,int token){
+if(token<257){
+return(iscntrl(token))?luaO_pushfstring(ls->L,"char(%d)",token):
+luaO_pushfstring(ls->L,"%c",token);
+}
+else
+return luaX_tokens[token-257];
+}
+static const char*txtToken(LexState*ls,int token){
+switch(token){
+case TK_NAME:
+case TK_STRING:
+case TK_NUMBER:
+save(ls,'\0');
+return luaZ_buffer(ls->buff);
+default:
+return luaX_token2str(ls,token);
+}
+}
+static void luaX_lexerror(LexState*ls,const char*msg,int token){
+char buff[80];
+luaO_chunkid(buff,getstr(ls->source),80);
+msg=luaO_pushfstring(ls->L,"%s:%d: %s",buff,ls->linenumber,msg);
+if(token)
+luaO_pushfstring(ls->L,"%s near "LUA_QL("%s"),msg,txtToken(ls,token));
+luaD_throw(ls->L,3);
+}
+static void luaX_syntaxerror(LexState*ls,const char*msg){
+luaX_lexerror(ls,msg,ls->t.token);
+}
+static TString*luaX_newstring(LexState*ls,const char*str,size_t l){
+lua_State*L=ls->L;
+TString*ts=luaS_newlstr(L,str,l);
+TValue*o=luaH_setstr(L,ls->fs->h,ts);
+if(ttisnil(o)){
+setbvalue(o,1);
+luaC_checkGC(L);
+}
+return ts;
+}
+static void inclinenumber(LexState*ls){
+int old=ls->current;
+next(ls);
+if(currIsNewline(ls)&&ls->current!=old)
+next(ls);
+if(++ls->linenumber>=(INT_MAX-2))
+luaX_syntaxerror(ls,"chunk has too many lines");
+}
+static void luaX_setinput(lua_State*L,LexState*ls,ZIO*z,TString*source){
+ls->decpoint='.';
+ls->L=L;
+ls->lookahead.token=TK_EOS;
+ls->z=z;
+ls->fs=NULL;
+ls->linenumber=1;
+ls->lastline=1;
+ls->source=source;
+luaZ_resizebuffer(ls->L,ls->buff,32);
+next(ls);
+}
+static int check_next(LexState*ls,const char*set){
+if(!strchr(set,ls->current))
+return 0;
+save_and_next(ls);
+return 1;
+}
+static void buffreplace(LexState*ls,char from,char to){
+size_t n=luaZ_bufflen(ls->buff);
+char*p=luaZ_buffer(ls->buff);
+while(n--)
+if(p[n]==from)p[n]=to;
+}
+static void read_numeral(LexState*ls,SemInfo*seminfo){
+do{
+save_and_next(ls);
+}while(isdigit(ls->current)||ls->current=='.');
+if(check_next(ls,"Ee"))
+check_next(ls,"+-");
+while(isalnum(ls->current)||ls->current=='_')
+save_and_next(ls);
+save(ls,'\0');
+buffreplace(ls,'.',ls->decpoint);
+if(!luaO_str2d(luaZ_buffer(ls->buff),&seminfo->r))
+luaX_lexerror(ls,"malformed number",TK_NUMBER);
+}
+static int skip_sep(LexState*ls){
+int count=0;
+int s=ls->current;
+save_and_next(ls);
+while(ls->current=='='){
+save_and_next(ls);
+count++;
+}
+return(ls->current==s)?count:(-count)-1;
+}
+static void read_long_string(LexState*ls,SemInfo*seminfo,int sep){
+int cont=0;
+(void)(cont);
+save_and_next(ls);
+if(currIsNewline(ls))
+inclinenumber(ls);
+for(;;){
+switch(ls->current){
+case(-1):
+luaX_lexerror(ls,(seminfo)?"unfinished long string":
+"unfinished long comment",TK_EOS);
+break;
+case']':{
+if(skip_sep(ls)==sep){
+save_and_next(ls);
+goto endloop;
+}
+break;
+}
+case'\n':
+case'\r':{
+save(ls,'\n');
+inclinenumber(ls);
+if(!seminfo)luaZ_resetbuffer(ls->buff);
+break;
+}
+default:{
+if(seminfo)save_and_next(ls);
+else next(ls);
+}
+}
+}endloop:
+if(seminfo)
+seminfo->ts=luaX_newstring(ls,luaZ_buffer(ls->buff)+(2+sep),
+luaZ_bufflen(ls->buff)-2*(2+sep));
+}
+static void read_string(LexState*ls,int del,SemInfo*seminfo){
+save_and_next(ls);
+while(ls->current!=del){
+switch(ls->current){
+case(-1):
+luaX_lexerror(ls,"unfinished string",TK_EOS);
+continue;
+case'\n':
+case'\r':
+luaX_lexerror(ls,"unfinished string",TK_STRING);
+continue;
+case'\\':{
+int c;
+next(ls);
+switch(ls->current){
+case'a':c='\a';break;
+case'b':c='\b';break;
+case'f':c='\f';break;
+case'n':c='\n';break;
+case'r':c='\r';break;
+case't':c='\t';break;
+case'v':c='\v';break;
+case'\n':
+case'\r':save(ls,'\n');inclinenumber(ls);continue;
+case(-1):continue;
+default:{
+if(!isdigit(ls->current))
+save_and_next(ls);
+else{
+int i=0;
+c=0;
+do{
+c=10*c+(ls->current-'0');
+next(ls);
+}while(++i<3&&isdigit(ls->current));
+if(c>UCHAR_MAX)
+luaX_lexerror(ls,"escape sequence too large",TK_STRING);
+save(ls,c);
+}
+continue;
+}
+}
+save(ls,c);
+next(ls);
+continue;
+}
+default:
+save_and_next(ls);
+}
+}
+save_and_next(ls);
+seminfo->ts=luaX_newstring(ls,luaZ_buffer(ls->buff)+1,
+luaZ_bufflen(ls->buff)-2);
+}
+static int llex(LexState*ls,SemInfo*seminfo){
+luaZ_resetbuffer(ls->buff);
+for(;;){
+switch(ls->current){
+case'\n':
+case'\r':{
+inclinenumber(ls);
+continue;
+}
+case'-':{
+next(ls);
+if(ls->current!='-')return'-';
+next(ls);
+if(ls->current=='['){
+int sep=skip_sep(ls);
+luaZ_resetbuffer(ls->buff);
+if(sep>=0){
+read_long_string(ls,NULL,sep);
+luaZ_resetbuffer(ls->buff);
+continue;
+}
+}
+while(!currIsNewline(ls)&&ls->current!=(-1))
+next(ls);
+continue;
+}
+case'[':{
+int sep=skip_sep(ls);
+if(sep>=0){
+read_long_string(ls,seminfo,sep);
+return TK_STRING;
+}
+else if(sep==-1)return'[';
+else luaX_lexerror(ls,"invalid long string delimiter",TK_STRING);
+}
+case'=':{
+next(ls);
+if(ls->current!='=')return'=';
+else{next(ls);return TK_EQ;}
+}
+case'<':{
+next(ls);
+if(ls->current!='=')return'<';
+else{next(ls);return TK_LE;}
+}
+case'>':{
+next(ls);
+if(ls->current!='=')return'>';
+else{next(ls);return TK_GE;}
+}
+case'~':{
+next(ls);
+if(ls->current!='=')return'~';
+else{next(ls);return TK_NE;}
+}
+case'"':
+case'\'':{
+read_string(ls,ls->current,seminfo);
+return TK_STRING;
+}
+case'.':{
+save_and_next(ls);
+if(check_next(ls,".")){
+if(check_next(ls,"."))
+return TK_DOTS;
+else return TK_CONCAT;
+}
+else if(!isdigit(ls->current))return'.';
+else{
+read_numeral(ls,seminfo);
+return TK_NUMBER;
+}
+}
+case(-1):{
+return TK_EOS;
+}
+default:{
+if(isspace(ls->current)){
+next(ls);
+continue;
+}
+else if(isdigit(ls->current)){
+read_numeral(ls,seminfo);
+return TK_NUMBER;
+}
+else if(isalpha(ls->current)||ls->current=='_'){
+TString*ts;
+do{
+save_and_next(ls);
+}while(isalnum(ls->current)||ls->current=='_');
+ts=luaX_newstring(ls,luaZ_buffer(ls->buff),
+luaZ_bufflen(ls->buff));
+if(ts->tsv.reserved>0)
+return ts->tsv.reserved-1+257;
+else{
+seminfo->ts=ts;
+return TK_NAME;
+}
+}
+else{
+int c=ls->current;
+next(ls);
+return c;
+}
+}
+}
+}
+}
+static void luaX_next(LexState*ls){
+ls->lastline=ls->linenumber;
+if(ls->lookahead.token!=TK_EOS){
+ls->t=ls->lookahead;
+ls->lookahead.token=TK_EOS;
+}
+else
+ls->t.token=llex(ls,&ls->t.seminfo);
+}
+static void luaX_lookahead(LexState*ls){
+ls->lookahead.token=llex(ls,&ls->lookahead.seminfo);
+}
+#define hasjumps(e)((e)->t!=(e)->f)
+static int isnumeral(expdesc*e){
+return(e->k==VKNUM&&e->t==(-1)&&e->f==(-1));
+}
+static void luaK_nil(FuncState*fs,int from,int n){
+Instruction*previous;
+if(fs->pc>fs->lasttarget){
+if(fs->pc==0){
+if(from>=fs->nactvar)
+return;
+}
+else{
+previous=&fs->f->code[fs->pc-1];
+if(GET_OPCODE(*previous)==OP_LOADNIL){
+int pfrom=GETARG_A(*previous);
+int pto=GETARG_B(*previous);
+if(pfrom<=from&&from<=pto+1){
+if(from+n-1>pto)
+SETARG_B(*previous,from+n-1);
+return;
+}
+}
+}
+}
+luaK_codeABC(fs,OP_LOADNIL,from,from+n-1,0);
+}
+static int luaK_jump(FuncState*fs){
+int jpc=fs->jpc;
+int j;
+fs->jpc=(-1);
+j=luaK_codeAsBx(fs,OP_JMP,0,(-1));
+luaK_concat(fs,&j,jpc);
+return j;
+}
+static void luaK_ret(FuncState*fs,int first,int nret){
+luaK_codeABC(fs,OP_RETURN,first,nret+1,0);
+}
+static int condjump(FuncState*fs,OpCode op,int A,int B,int C){
+luaK_codeABC(fs,op,A,B,C);
+return luaK_jump(fs);
+}
+static void fixjump(FuncState*fs,int pc,int dest){
+Instruction*jmp=&fs->f->code[pc];
+int offset=dest-(pc+1);
+if(abs(offset)>(((1<<(9+9))-1)>>1))
+luaX_syntaxerror(fs->ls,"control structure too long");
+SETARG_sBx(*jmp,offset);
+}
+static int luaK_getlabel(FuncState*fs){
+fs->lasttarget=fs->pc;
+return fs->pc;
+}
+static int getjump(FuncState*fs,int pc){
+int offset=GETARG_sBx(fs->f->code[pc]);
+if(offset==(-1))
+return(-1);
+else
+return(pc+1)+offset;
+}
+static Instruction*getjumpcontrol(FuncState*fs,int pc){
+Instruction*pi=&fs->f->code[pc];
+if(pc>=1&&testTMode(GET_OPCODE(*(pi-1))))
+return pi-1;
+else
+return pi;
+}
+static int need_value(FuncState*fs,int list){
+for(;list!=(-1);list=getjump(fs,list)){
+Instruction i=*getjumpcontrol(fs,list);
+if(GET_OPCODE(i)!=OP_TESTSET)return 1;
+}
+return 0;
+}
+static int patchtestreg(FuncState*fs,int node,int reg){
+Instruction*i=getjumpcontrol(fs,node);
+if(GET_OPCODE(*i)!=OP_TESTSET)
+return 0;
+if(reg!=((1<<8)-1)&&reg!=GETARG_B(*i))
+SETARG_A(*i,reg);
+else
+*i=CREATE_ABC(OP_TEST,GETARG_B(*i),0,GETARG_C(*i));
+return 1;
+}
+static void removevalues(FuncState*fs,int list){
+for(;list!=(-1);list=getjump(fs,list))
+patchtestreg(fs,list,((1<<8)-1));
+}
+static void patchlistaux(FuncState*fs,int list,int vtarget,int reg,
+int dtarget){
+while(list!=(-1)){
+int next=getjump(fs,list);
+if(patchtestreg(fs,list,reg))
+fixjump(fs,list,vtarget);
+else
+fixjump(fs,list,dtarget);
+list=next;
+}
+}
+static void dischargejpc(FuncState*fs){
+patchlistaux(fs,fs->jpc,fs->pc,((1<<8)-1),fs->pc);
+fs->jpc=(-1);
+}
+static void luaK_patchlist(FuncState*fs,int list,int target){
+if(target==fs->pc)
+luaK_patchtohere(fs,list);
+else{
+patchlistaux(fs,list,target,((1<<8)-1),target);
+}
+}
+static void luaK_patchtohere(FuncState*fs,int list){
+luaK_getlabel(fs);
+luaK_concat(fs,&fs->jpc,list);
+}
+static void luaK_concat(FuncState*fs,int*l1,int l2){
+if(l2==(-1))return;
+else if(*l1==(-1))
+*l1=l2;
+else{
+int list=*l1;
+int next;
+while((next=getjump(fs,list))!=(-1))
+list=next;
+fixjump(fs,list,l2);
+}
+}
+static void luaK_checkstack(FuncState*fs,int n){
+int newstack=fs->freereg+n;
+if(newstack>fs->f->maxstacksize){
+if(newstack>=250)
+luaX_syntaxerror(fs->ls,"function or expression too complex");
+fs->f->maxstacksize=cast_byte(newstack);
+}
+}
+static void luaK_reserveregs(FuncState*fs,int n){
+luaK_checkstack(fs,n);
+fs->freereg+=n;
+}
+static void freereg(FuncState*fs,int reg){
+if(!ISK(reg)&&reg>=fs->nactvar){
+fs->freereg--;
+}
+}
+static void freeexp(FuncState*fs,expdesc*e){
+if(e->k==VNONRELOC)
+freereg(fs,e->u.s.info);
+}
+static int addk(FuncState*fs,TValue*k,TValue*v){
+lua_State*L=fs->L;
+TValue*idx=luaH_set(L,fs->h,k);
+Proto*f=fs->f;
+int oldsize=f->sizek;
+if(ttisnumber(idx)){
+return cast_int(nvalue(idx));
+}
+else{
+setnvalue(idx,cast_num(fs->nk));
+luaM_growvector(L,f->k,fs->nk,f->sizek,TValue,
+((1<<(9+9))-1),"constant table overflow");
+while(oldsize<f->sizek)setnilvalue(&f->k[oldsize++]);
+setobj(L,&f->k[fs->nk],v);
+luaC_barrier(L,f,v);
+return fs->nk++;
+}
+}
+static int luaK_stringK(FuncState*fs,TString*s){
+TValue o;
+setsvalue(fs->L,&o,s);
+return addk(fs,&o,&o);
+}
+static int luaK_numberK(FuncState*fs,lua_Number r){
+TValue o;
+setnvalue(&o,r);
+return addk(fs,&o,&o);
+}
+static int boolK(FuncState*fs,int b){
+TValue o;
+setbvalue(&o,b);
+return addk(fs,&o,&o);
+}
+static int nilK(FuncState*fs){
+TValue k,v;
+setnilvalue(&v);
+sethvalue(fs->L,&k,fs->h);
+return addk(fs,&k,&v);
+}
+static void luaK_setreturns(FuncState*fs,expdesc*e,int nresults){
+if(e->k==VCALL){
+SETARG_C(getcode(fs,e),nresults+1);
+}
+else if(e->k==VVARARG){
+SETARG_B(getcode(fs,e),nresults+1);
+SETARG_A(getcode(fs,e),fs->freereg);
+luaK_reserveregs(fs,1);
+}
+}
+static void luaK_setoneret(FuncState*fs,expdesc*e){
+if(e->k==VCALL){
+e->k=VNONRELOC;
+e->u.s.info=GETARG_A(getcode(fs,e));
+}
+else if(e->k==VVARARG){
+SETARG_B(getcode(fs,e),2);
+e->k=VRELOCABLE;
+}
+}
+static void luaK_dischargevars(FuncState*fs,expdesc*e){
+switch(e->k){
+case VLOCAL:{
+e->k=VNONRELOC;
+break;
+}
+case VUPVAL:{
+e->u.s.info=luaK_codeABC(fs,OP_GETUPVAL,0,e->u.s.info,0);
+e->k=VRELOCABLE;
+break;
+}
+case VGLOBAL:{
+e->u.s.info=luaK_codeABx(fs,OP_GETGLOBAL,0,e->u.s.info);
+e->k=VRELOCABLE;
+break;
+}
+case VINDEXED:{
+freereg(fs,e->u.s.aux);
+freereg(fs,e->u.s.info);
+e->u.s.info=luaK_codeABC(fs,OP_GETTABLE,0,e->u.s.info,e->u.s.aux);
+e->k=VRELOCABLE;
+break;
+}
+case VVARARG:
+case VCALL:{
+luaK_setoneret(fs,e);
+break;
+}
+default:break;
+}
+}
+static int code_label(FuncState*fs,int A,int b,int jump){
+luaK_getlabel(fs);
+return luaK_codeABC(fs,OP_LOADBOOL,A,b,jump);
+}
+static void discharge2reg(FuncState*fs,expdesc*e,int reg){
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VNIL:{
+luaK_nil(fs,reg,1);
+break;
+}
+case VFALSE:case VTRUE:{
+luaK_codeABC(fs,OP_LOADBOOL,reg,e->k==VTRUE,0);
+break;
+}
+case VK:{
+luaK_codeABx(fs,OP_LOADK,reg,e->u.s.info);
+break;
+}
+case VKNUM:{
+luaK_codeABx(fs,OP_LOADK,reg,luaK_numberK(fs,e->u.nval));
+break;
+}
+case VRELOCABLE:{
+Instruction*pc=&getcode(fs,e);
+SETARG_A(*pc,reg);
+break;
+}
+case VNONRELOC:{
+if(reg!=e->u.s.info)
+luaK_codeABC(fs,OP_MOVE,reg,e->u.s.info,0);
+break;
+}
+default:{
+return;
+}
+}
+e->u.s.info=reg;
+e->k=VNONRELOC;
+}
+static void discharge2anyreg(FuncState*fs,expdesc*e){
+if(e->k!=VNONRELOC){
+luaK_reserveregs(fs,1);
+discharge2reg(fs,e,fs->freereg-1);
+}
+}
+static void exp2reg(FuncState*fs,expdesc*e,int reg){
+discharge2reg(fs,e,reg);
+if(e->k==VJMP)
+luaK_concat(fs,&e->t,e->u.s.info);
+if(hasjumps(e)){
+int final;
+int p_f=(-1);
+int p_t=(-1);
+if(need_value(fs,e->t)||need_value(fs,e->f)){
+int fj=(e->k==VJMP)?(-1):luaK_jump(fs);
+p_f=code_label(fs,reg,0,1);
+p_t=code_label(fs,reg,1,0);
+luaK_patchtohere(fs,fj);
+}
+final=luaK_getlabel(fs);
+patchlistaux(fs,e->f,final,reg,p_f);
+patchlistaux(fs,e->t,final,reg,p_t);
+}
+e->f=e->t=(-1);
+e->u.s.info=reg;
+e->k=VNONRELOC;
+}
+static void luaK_exp2nextreg(FuncState*fs,expdesc*e){
+luaK_dischargevars(fs,e);
+freeexp(fs,e);
+luaK_reserveregs(fs,1);
+exp2reg(fs,e,fs->freereg-1);
+}
+static int luaK_exp2anyreg(FuncState*fs,expdesc*e){
+luaK_dischargevars(fs,e);
+if(e->k==VNONRELOC){
+if(!hasjumps(e))return e->u.s.info;
+if(e->u.s.info>=fs->nactvar){
+exp2reg(fs,e,e->u.s.info);
+return e->u.s.info;
+}
+}
+luaK_exp2nextreg(fs,e);
+return e->u.s.info;
+}
+static void luaK_exp2val(FuncState*fs,expdesc*e){
+if(hasjumps(e))
+luaK_exp2anyreg(fs,e);
+else
+luaK_dischargevars(fs,e);
+}
+static int luaK_exp2RK(FuncState*fs,expdesc*e){
+luaK_exp2val(fs,e);
+switch(e->k){
+case VKNUM:
+case VTRUE:
+case VFALSE:
+case VNIL:{
+if(fs->nk<=((1<<(9-1))-1)){
+e->u.s.info=(e->k==VNIL)?nilK(fs):
+(e->k==VKNUM)?luaK_numberK(fs,e->u.nval):
+boolK(fs,(e->k==VTRUE));
+e->k=VK;
+return RKASK(e->u.s.info);
+}
+else break;
+}
+case VK:{
+if(e->u.s.info<=((1<<(9-1))-1))
+return RKASK(e->u.s.info);
+else break;
+}
+default:break;
+}
+return luaK_exp2anyreg(fs,e);
+}
+static void luaK_storevar(FuncState*fs,expdesc*var,expdesc*ex){
+switch(var->k){
+case VLOCAL:{
+freeexp(fs,ex);
+exp2reg(fs,ex,var->u.s.info);
+return;
+}
+case VUPVAL:{
+int e=luaK_exp2anyreg(fs,ex);
+luaK_codeABC(fs,OP_SETUPVAL,e,var->u.s.info,0);
+break;
+}
+case VGLOBAL:{
+int e=luaK_exp2anyreg(fs,ex);
+luaK_codeABx(fs,OP_SETGLOBAL,e,var->u.s.info);
+break;
+}
+case VINDEXED:{
+int e=luaK_exp2RK(fs,ex);
+luaK_codeABC(fs,OP_SETTABLE,var->u.s.info,var->u.s.aux,e);
+break;
+}
+default:{
+break;
+}
+}
+freeexp(fs,ex);
+}
+static void luaK_self(FuncState*fs,expdesc*e,expdesc*key){
+int func;
+luaK_exp2anyreg(fs,e);
+freeexp(fs,e);
+func=fs->freereg;
+luaK_reserveregs(fs,2);
+luaK_codeABC(fs,OP_SELF,func,e->u.s.info,luaK_exp2RK(fs,key));
+freeexp(fs,key);
+e->u.s.info=func;
+e->k=VNONRELOC;
+}
+static void invertjump(FuncState*fs,expdesc*e){
+Instruction*pc=getjumpcontrol(fs,e->u.s.info);
+SETARG_A(*pc,!(GETARG_A(*pc)));
+}
+static int jumponcond(FuncState*fs,expdesc*e,int cond){
+if(e->k==VRELOCABLE){
+Instruction ie=getcode(fs,e);
+if(GET_OPCODE(ie)==OP_NOT){
+fs->pc--;
+return condjump(fs,OP_TEST,GETARG_B(ie),0,!cond);
+}
+}
+discharge2anyreg(fs,e);
+freeexp(fs,e);
+return condjump(fs,OP_TESTSET,((1<<8)-1),e->u.s.info,cond);
+}
+static void luaK_goiftrue(FuncState*fs,expdesc*e){
+int pc;
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VK:case VKNUM:case VTRUE:{
+pc=(-1);
+break;
+}
+case VJMP:{
+invertjump(fs,e);
+pc=e->u.s.info;
+break;
+}
+default:{
+pc=jumponcond(fs,e,0);
+break;
+}
+}
+luaK_concat(fs,&e->f,pc);
+luaK_patchtohere(fs,e->t);
+e->t=(-1);
+}
+static void luaK_goiffalse(FuncState*fs,expdesc*e){
+int pc;
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VNIL:case VFALSE:{
+pc=(-1);
+break;
+}
+case VJMP:{
+pc=e->u.s.info;
+break;
+}
+default:{
+pc=jumponcond(fs,e,1);
+break;
+}
+}
+luaK_concat(fs,&e->t,pc);
+luaK_patchtohere(fs,e->f);
+e->f=(-1);
+}
+static void codenot(FuncState*fs,expdesc*e){
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VNIL:case VFALSE:{
+e->k=VTRUE;
+break;
+}
+case VK:case VKNUM:case VTRUE:{
+e->k=VFALSE;
+break;
+}
+case VJMP:{
+invertjump(fs,e);
+break;
+}
+case VRELOCABLE:
+case VNONRELOC:{
+discharge2anyreg(fs,e);
+freeexp(fs,e);
+e->u.s.info=luaK_codeABC(fs,OP_NOT,0,e->u.s.info,0);
+e->k=VRELOCABLE;
+break;
+}
+default:{
+break;
+}
+}
+{int temp=e->f;e->f=e->t;e->t=temp;}
+removevalues(fs,e->f);
+removevalues(fs,e->t);
+}
+static void luaK_indexed(FuncState*fs,expdesc*t,expdesc*k){
+t->u.s.aux=luaK_exp2RK(fs,k);
+t->k=VINDEXED;
+}
+static int constfolding(OpCode op,expdesc*e1,expdesc*e2){
+lua_Number v1,v2,r;
+if(!isnumeral(e1)||!isnumeral(e2))return 0;
+v1=e1->u.nval;
+v2=e2->u.nval;
+switch(op){
+case OP_ADD:r=luai_numadd(v1,v2);break;
+case OP_SUB:r=luai_numsub(v1,v2);break;
+case OP_MUL:r=luai_nummul(v1,v2);break;
+case OP_DIV:
+if(v2==0)return 0;
+r=luai_numdiv(v1,v2);break;
+case OP_MOD:
+if(v2==0)return 0;
+r=luai_nummod(v1,v2);break;
+case OP_POW:r=luai_numpow(v1,v2);break;
+case OP_UNM:r=luai_numunm(v1);break;
+case OP_LEN:return 0;
+default:r=0;break;
+}
+if(luai_numisnan(r))return 0;
+e1->u.nval=r;
+return 1;
+}
+static void codearith(FuncState*fs,OpCode op,expdesc*e1,expdesc*e2){
+if(constfolding(op,e1,e2))
+return;
+else{
+int o2=(op!=OP_UNM&&op!=OP_LEN)?luaK_exp2RK(fs,e2):0;
+int o1=luaK_exp2RK(fs,e1);
+if(o1>o2){
+freeexp(fs,e1);
+freeexp(fs,e2);
+}
+else{
+freeexp(fs,e2);
+freeexp(fs,e1);
+}
+e1->u.s.info=luaK_codeABC(fs,op,0,o1,o2);
+e1->k=VRELOCABLE;
+}
+}
+static void codecomp(FuncState*fs,OpCode op,int cond,expdesc*e1,
+expdesc*e2){
+int o1=luaK_exp2RK(fs,e1);
+int o2=luaK_exp2RK(fs,e2);
+freeexp(fs,e2);
+freeexp(fs,e1);
+if(cond==0&&op!=OP_EQ){
+int temp;
+temp=o1;o1=o2;o2=temp;
+cond=1;
+}
+e1->u.s.info=condjump(fs,op,cond,o1,o2);
+e1->k=VJMP;
+}
+static void luaK_prefix(FuncState*fs,UnOpr op,expdesc*e){
+expdesc e2;
+e2.t=e2.f=(-1);e2.k=VKNUM;e2.u.nval=0;
+switch(op){
+case OPR_MINUS:{
+if(!isnumeral(e))
+luaK_exp2anyreg(fs,e);
+codearith(fs,OP_UNM,e,&e2);
+break;
+}
+case OPR_NOT:codenot(fs,e);break;
+case OPR_LEN:{
+luaK_exp2anyreg(fs,e);
+codearith(fs,OP_LEN,e,&e2);
+break;
+}
+default:;
+}
+}
+static void luaK_infix(FuncState*fs,BinOpr op,expdesc*v){
+switch(op){
+case OPR_AND:{
+luaK_goiftrue(fs,v);
+break;
+}
+case OPR_OR:{
+luaK_goiffalse(fs,v);
+break;
+}
+case OPR_CONCAT:{
+luaK_exp2nextreg(fs,v);
+break;
+}
+case OPR_ADD:case OPR_SUB:case OPR_MUL:case OPR_DIV:
+case OPR_MOD:case OPR_POW:{
+if(!isnumeral(v))luaK_exp2RK(fs,v);
+break;
+}
+default:{
+luaK_exp2RK(fs,v);
+break;
+}
+}
+}
+static void luaK_posfix(FuncState*fs,BinOpr op,expdesc*e1,expdesc*e2){
+switch(op){
+case OPR_AND:{
+luaK_dischargevars(fs,e2);
+luaK_concat(fs,&e2->f,e1->f);
+*e1=*e2;
+break;
+}
+case OPR_OR:{
+luaK_dischargevars(fs,e2);
+luaK_concat(fs,&e2->t,e1->t);
+*e1=*e2;
+break;
+}
+case OPR_CONCAT:{
+luaK_exp2val(fs,e2);
+if(e2->k==VRELOCABLE&&GET_OPCODE(getcode(fs,e2))==OP_CONCAT){
+freeexp(fs,e1);
+SETARG_B(getcode(fs,e2),e1->u.s.info);
+e1->k=VRELOCABLE;e1->u.s.info=e2->u.s.info;
+}
+else{
+luaK_exp2nextreg(fs,e2);
+codearith(fs,OP_CONCAT,e1,e2);
+}
+break;
+}
+case OPR_ADD:codearith(fs,OP_ADD,e1,e2);break;
+case OPR_SUB:codearith(fs,OP_SUB,e1,e2);break;
+case OPR_MUL:codearith(fs,OP_MUL,e1,e2);break;
+case OPR_DIV:codearith(fs,OP_DIV,e1,e2);break;
+case OPR_MOD:codearith(fs,OP_MOD,e1,e2);break;
+case OPR_POW:codearith(fs,OP_POW,e1,e2);break;
+case OPR_EQ:codecomp(fs,OP_EQ,1,e1,e2);break;
+case OPR_NE:codecomp(fs,OP_EQ,0,e1,e2);break;
+case OPR_LT:codecomp(fs,OP_LT,1,e1,e2);break;
+case OPR_LE:codecomp(fs,OP_LE,1,e1,e2);break;
+case OPR_GT:codecomp(fs,OP_LT,0,e1,e2);break;
+case OPR_GE:codecomp(fs,OP_LE,0,e1,e2);break;
+default:;
+}
+}
+static void luaK_fixline(FuncState*fs,int line){
+fs->f->lineinfo[fs->pc-1]=line;
+}
+static int luaK_code(FuncState*fs,Instruction i,int line){
+Proto*f=fs->f;
+dischargejpc(fs);
+luaM_growvector(fs->L,f->code,fs->pc,f->sizecode,Instruction,
+(INT_MAX-2),"code size overflow");
+f->code[fs->pc]=i;
+luaM_growvector(fs->L,f->lineinfo,fs->pc,f->sizelineinfo,int,
+(INT_MAX-2),"code size overflow");
+f->lineinfo[fs->pc]=line;
+return fs->pc++;
+}
+static int luaK_codeABC(FuncState*fs,OpCode o,int a,int b,int c){
+return luaK_code(fs,CREATE_ABC(o,a,b,c),fs->ls->lastline);
+}
+static int luaK_codeABx(FuncState*fs,OpCode o,int a,unsigned int bc){
+return luaK_code(fs,CREATE_ABx(o,a,bc),fs->ls->lastline);
+}
+static void luaK_setlist(FuncState*fs,int base,int nelems,int tostore){
+int c=(nelems-1)/50+1;
+int b=(tostore==(-1))?0:tostore;
+if(c<=((1<<9)-1))
+luaK_codeABC(fs,OP_SETLIST,base,b,c);
+else{
+luaK_codeABC(fs,OP_SETLIST,base,b,0);
+luaK_code(fs,cast(Instruction,c),fs->ls->lastline);
+}
+fs->freereg=base+1;
+}
+#define hasmultret(k)((k)==VCALL||(k)==VVARARG)
+#define getlocvar(fs,i)((fs)->f->locvars[(fs)->actvar[i]])
+#define luaY_checklimit(fs,v,l,m)if((v)>(l))errorlimit(fs,l,m)
+typedef struct BlockCnt{
+struct BlockCnt*previous;
+int breaklist;
+lu_byte nactvar;
+lu_byte upval;
+lu_byte isbreakable;
+}BlockCnt;
+static void chunk(LexState*ls);
+static void expr(LexState*ls,expdesc*v);
+static void anchor_token(LexState*ls){
+if(ls->t.token==TK_NAME||ls->t.token==TK_STRING){
+TString*ts=ls->t.seminfo.ts;
+luaX_newstring(ls,getstr(ts),ts->tsv.len);
+}
+}
+static void error_expected(LexState*ls,int token){
+luaX_syntaxerror(ls,
+luaO_pushfstring(ls->L,LUA_QL("%s")" expected",luaX_token2str(ls,token)));
+}
+static void errorlimit(FuncState*fs,int limit,const char*what){
+const char*msg=(fs->f->linedefined==0)?
+luaO_pushfstring(fs->L,"main function has more than %d %s",limit,what):
+luaO_pushfstring(fs->L,"function at line %d has more than %d %s",
+fs->f->linedefined,limit,what);
+luaX_lexerror(fs->ls,msg,0);
+}
+static int testnext(LexState*ls,int c){
+if(ls->t.token==c){
+luaX_next(ls);
+return 1;
+}
+else return 0;
+}
+static void check(LexState*ls,int c){
+if(ls->t.token!=c)
+error_expected(ls,c);
+}
+static void checknext(LexState*ls,int c){
+check(ls,c);
+luaX_next(ls);
+}
+#define check_condition(ls,c,msg){if(!(c))luaX_syntaxerror(ls,msg);}
+static void check_match(LexState*ls,int what,int who,int where){
+if(!testnext(ls,what)){
+if(where==ls->linenumber)
+error_expected(ls,what);
+else{
+luaX_syntaxerror(ls,luaO_pushfstring(ls->L,
+LUA_QL("%s")" expected (to close "LUA_QL("%s")" at line %d)",
+luaX_token2str(ls,what),luaX_token2str(ls,who),where));
+}
+}
+}
+static TString*str_checkname(LexState*ls){
+TString*ts;
+check(ls,TK_NAME);
+ts=ls->t.seminfo.ts;
+luaX_next(ls);
+return ts;
+}
+static void init_exp(expdesc*e,expkind k,int i){
+e->f=e->t=(-1);
+e->k=k;
+e->u.s.info=i;
+}
+static void codestring(LexState*ls,expdesc*e,TString*s){
+init_exp(e,VK,luaK_stringK(ls->fs,s));
+}
+static void checkname(LexState*ls,expdesc*e){
+codestring(ls,e,str_checkname(ls));
+}
+static int registerlocalvar(LexState*ls,TString*varname){
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+int oldsize=f->sizelocvars;
+luaM_growvector(ls->L,f->locvars,fs->nlocvars,f->sizelocvars,
+LocVar,SHRT_MAX,"too many local variables");
+while(oldsize<f->sizelocvars)f->locvars[oldsize++].varname=NULL;
+f->locvars[fs->nlocvars].varname=varname;
+luaC_objbarrier(ls->L,f,varname);
+return fs->nlocvars++;
+}
+#define new_localvarliteral(ls,v,n)new_localvar(ls,luaX_newstring(ls,""v,(sizeof(v)/sizeof(char))-1),n)
+static void new_localvar(LexState*ls,TString*name,int n){
+FuncState*fs=ls->fs;
+luaY_checklimit(fs,fs->nactvar+n+1,200,"local variables");
+fs->actvar[fs->nactvar+n]=cast(unsigned short,registerlocalvar(ls,name));
+}
+static void adjustlocalvars(LexState*ls,int nvars){
+FuncState*fs=ls->fs;
+fs->nactvar=cast_byte(fs->nactvar+nvars);
+for(;nvars;nvars--){
+getlocvar(fs,fs->nactvar-nvars).startpc=fs->pc;
+}
+}
+static void removevars(LexState*ls,int tolevel){
+FuncState*fs=ls->fs;
+while(fs->nactvar>tolevel)
+getlocvar(fs,--fs->nactvar).endpc=fs->pc;
+}
+static int indexupvalue(FuncState*fs,TString*name,expdesc*v){
+int i;
+Proto*f=fs->f;
+int oldsize=f->sizeupvalues;
+for(i=0;i<f->nups;i++){
+if(fs->upvalues[i].k==v->k&&fs->upvalues[i].info==v->u.s.info){
+return i;
+}
+}
+luaY_checklimit(fs,f->nups+1,60,"upvalues");
+luaM_growvector(fs->L,f->upvalues,f->nups,f->sizeupvalues,
+TString*,(INT_MAX-2),"");
+while(oldsize<f->sizeupvalues)f->upvalues[oldsize++]=NULL;
+f->upvalues[f->nups]=name;
+luaC_objbarrier(fs->L,f,name);
+fs->upvalues[f->nups].k=cast_byte(v->k);
+fs->upvalues[f->nups].info=cast_byte(v->u.s.info);
+return f->nups++;
+}
+static int searchvar(FuncState*fs,TString*n){
+int i;
+for(i=fs->nactvar-1;i>=0;i--){
+if(n==getlocvar(fs,i).varname)
+return i;
+}
+return-1;
+}
+static void markupval(FuncState*fs,int level){
+BlockCnt*bl=fs->bl;
+while(bl&&bl->nactvar>level)bl=bl->previous;
+if(bl)bl->upval=1;
+}
+static int singlevaraux(FuncState*fs,TString*n,expdesc*var,int base){
+if(fs==NULL){
+init_exp(var,VGLOBAL,((1<<8)-1));
+return VGLOBAL;
+}
+else{
+int v=searchvar(fs,n);
+if(v>=0){
+init_exp(var,VLOCAL,v);
+if(!base)
+markupval(fs,v);
+return VLOCAL;
+}
+else{
+if(singlevaraux(fs->prev,n,var,0)==VGLOBAL)
+return VGLOBAL;
+var->u.s.info=indexupvalue(fs,n,var);
+var->k=VUPVAL;
+return VUPVAL;
+}
+}
+}
+static void singlevar(LexState*ls,expdesc*var){
+TString*varname=str_checkname(ls);
+FuncState*fs=ls->fs;
+if(singlevaraux(fs,varname,var,1)==VGLOBAL)
+var->u.s.info=luaK_stringK(fs,varname);
+}
+static void adjust_assign(LexState*ls,int nvars,int nexps,expdesc*e){
+FuncState*fs=ls->fs;
+int extra=nvars-nexps;
+if(hasmultret(e->k)){
+extra++;
+if(extra<0)extra=0;
+luaK_setreturns(fs,e,extra);
+if(extra>1)luaK_reserveregs(fs,extra-1);
+}
+else{
+if(e->k!=VVOID)luaK_exp2nextreg(fs,e);
+if(extra>0){
+int reg=fs->freereg;
+luaK_reserveregs(fs,extra);
+luaK_nil(fs,reg,extra);
+}
+}
+}
+static void enterlevel(LexState*ls){
+if(++ls->L->nCcalls>200)
+luaX_lexerror(ls,"chunk has too many syntax levels",0);
+}
+#define leavelevel(ls)((ls)->L->nCcalls--)
+static void enterblock(FuncState*fs,BlockCnt*bl,lu_byte isbreakable){
+bl->breaklist=(-1);
+bl->isbreakable=isbreakable;
+bl->nactvar=fs->nactvar;
+bl->upval=0;
+bl->previous=fs->bl;
+fs->bl=bl;
+}
+static void leaveblock(FuncState*fs){
+BlockCnt*bl=fs->bl;
+fs->bl=bl->previous;
+removevars(fs->ls,bl->nactvar);
+if(bl->upval)
+luaK_codeABC(fs,OP_CLOSE,bl->nactvar,0,0);
+fs->freereg=fs->nactvar;
+luaK_patchtohere(fs,bl->breaklist);
+}
+static void pushclosure(LexState*ls,FuncState*func,expdesc*v){
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+int oldsize=f->sizep;
+int i;
+luaM_growvector(ls->L,f->p,fs->np,f->sizep,Proto*,
+((1<<(9+9))-1),"constant table overflow");
+while(oldsize<f->sizep)f->p[oldsize++]=NULL;
+f->p[fs->np++]=func->f;
+luaC_objbarrier(ls->L,f,func->f);
+init_exp(v,VRELOCABLE,luaK_codeABx(fs,OP_CLOSURE,0,fs->np-1));
+for(i=0;i<func->f->nups;i++){
+OpCode o=(func->upvalues[i].k==VLOCAL)?OP_MOVE:OP_GETUPVAL;
+luaK_codeABC(fs,o,0,func->upvalues[i].info,0);
+}
+}
+static void open_func(LexState*ls,FuncState*fs){
+lua_State*L=ls->L;
+Proto*f=luaF_newproto(L);
+fs->f=f;
+fs->prev=ls->fs;
+fs->ls=ls;
+fs->L=L;
+ls->fs=fs;
+fs->pc=0;
+fs->lasttarget=-1;
+fs->jpc=(-1);
+fs->freereg=0;
+fs->nk=0;
+fs->np=0;
+fs->nlocvars=0;
+fs->nactvar=0;
+fs->bl=NULL;
+f->source=ls->source;
+f->maxstacksize=2;
+fs->h=luaH_new(L,0,0);
+sethvalue(L,L->top,fs->h);
+incr_top(L);
+setptvalue(L,L->top,f);
+incr_top(L);
+}
+static void close_func(LexState*ls){
+lua_State*L=ls->L;
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+removevars(ls,0);
+luaK_ret(fs,0,0);
+luaM_reallocvector(L,f->code,f->sizecode,fs->pc,Instruction);
+f->sizecode=fs->pc;
+luaM_reallocvector(L,f->lineinfo,f->sizelineinfo,fs->pc,int);
+f->sizelineinfo=fs->pc;
+luaM_reallocvector(L,f->k,f->sizek,fs->nk,TValue);
+f->sizek=fs->nk;
+luaM_reallocvector(L,f->p,f->sizep,fs->np,Proto*);
+f->sizep=fs->np;
+luaM_reallocvector(L,f->locvars,f->sizelocvars,fs->nlocvars,LocVar);
+f->sizelocvars=fs->nlocvars;
+luaM_reallocvector(L,f->upvalues,f->sizeupvalues,f->nups,TString*);
+f->sizeupvalues=f->nups;
+ls->fs=fs->prev;
+if(fs)anchor_token(ls);
+L->top-=2;
+}
+static Proto*luaY_parser(lua_State*L,ZIO*z,Mbuffer*buff,const char*name){
+struct LexState lexstate;
+struct FuncState funcstate;
+lexstate.buff=buff;
+luaX_setinput(L,&lexstate,z,luaS_new(L,name));
+open_func(&lexstate,&funcstate);
+funcstate.f->is_vararg=2;
+luaX_next(&lexstate);
+chunk(&lexstate);
+check(&lexstate,TK_EOS);
+close_func(&lexstate);
+return funcstate.f;
+}
+static void field(LexState*ls,expdesc*v){
+FuncState*fs=ls->fs;
+expdesc key;
+luaK_exp2anyreg(fs,v);
+luaX_next(ls);
+checkname(ls,&key);
+luaK_indexed(fs,v,&key);
+}
+static void yindex(LexState*ls,expdesc*v){
+luaX_next(ls);
+expr(ls,v);
+luaK_exp2val(ls->fs,v);
+checknext(ls,']');
+}
+struct ConsControl{
+expdesc v;
+expdesc*t;
+int nh;
+int na;
+int tostore;
+};
+static void recfield(LexState*ls,struct ConsControl*cc){
+FuncState*fs=ls->fs;
+int reg=ls->fs->freereg;
+expdesc key,val;
+int rkkey;
+if(ls->t.token==TK_NAME){
+luaY_checklimit(fs,cc->nh,(INT_MAX-2),"items in a constructor");
+checkname(ls,&key);
+}
+else
+yindex(ls,&key);
+cc->nh++;
+checknext(ls,'=');
+rkkey=luaK_exp2RK(fs,&key);
+expr(ls,&val);
+luaK_codeABC(fs,OP_SETTABLE,cc->t->u.s.info,rkkey,luaK_exp2RK(fs,&val));
+fs->freereg=reg;
+}
+static void closelistfield(FuncState*fs,struct ConsControl*cc){
+if(cc->v.k==VVOID)return;
+luaK_exp2nextreg(fs,&cc->v);
+cc->v.k=VVOID;
+if(cc->tostore==50){
+luaK_setlist(fs,cc->t->u.s.info,cc->na,cc->tostore);
+cc->tostore=0;
+}
+}
+static void lastlistfield(FuncState*fs,struct ConsControl*cc){
+if(cc->tostore==0)return;
+if(hasmultret(cc->v.k)){
+luaK_setmultret(fs,&cc->v);
+luaK_setlist(fs,cc->t->u.s.info,cc->na,(-1));
+cc->na--;
+}
+else{
+if(cc->v.k!=VVOID)
+luaK_exp2nextreg(fs,&cc->v);
+luaK_setlist(fs,cc->t->u.s.info,cc->na,cc->tostore);
+}
+}
+static void listfield(LexState*ls,struct ConsControl*cc){
+expr(ls,&cc->v);
+luaY_checklimit(ls->fs,cc->na,(INT_MAX-2),"items in a constructor");
+cc->na++;
+cc->tostore++;
+}
+static void constructor(LexState*ls,expdesc*t){
+FuncState*fs=ls->fs;
+int line=ls->linenumber;
+int pc=luaK_codeABC(fs,OP_NEWTABLE,0,0,0);
+struct ConsControl cc;
+cc.na=cc.nh=cc.tostore=0;
+cc.t=t;
+init_exp(t,VRELOCABLE,pc);
+init_exp(&cc.v,VVOID,0);
+luaK_exp2nextreg(ls->fs,t);
+checknext(ls,'{');
+do{
+if(ls->t.token=='}')break;
+closelistfield(fs,&cc);
+switch(ls->t.token){
+case TK_NAME:{
+luaX_lookahead(ls);
+if(ls->lookahead.token!='=')
+listfield(ls,&cc);
+else
+recfield(ls,&cc);
+break;
+}
+case'[':{
+recfield(ls,&cc);
+break;
+}
+default:{
+listfield(ls,&cc);
+break;
+}
+}
+}while(testnext(ls,',')||testnext(ls,';'));
+check_match(ls,'}','{',line);
+lastlistfield(fs,&cc);
+SETARG_B(fs->f->code[pc],luaO_int2fb(cc.na));
+SETARG_C(fs->f->code[pc],luaO_int2fb(cc.nh));
+}
+static void parlist(LexState*ls){
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+int nparams=0;
+f->is_vararg=0;
+if(ls->t.token!=')'){
+do{
+switch(ls->t.token){
+case TK_NAME:{
+new_localvar(ls,str_checkname(ls),nparams++);
+break;
+}
+case TK_DOTS:{
+luaX_next(ls);
+f->is_vararg|=2;
+break;
+}
+default:luaX_syntaxerror(ls,"<name> or "LUA_QL("...")" expected");
+}
+}while(!f->is_vararg&&testnext(ls,','));
+}
+adjustlocalvars(ls,nparams);
+f->numparams=cast_byte(fs->nactvar-(f->is_vararg&1));
+luaK_reserveregs(fs,fs->nactvar);
+}
+static void body(LexState*ls,expdesc*e,int needself,int line){
+FuncState new_fs;
+open_func(ls,&new_fs);
+new_fs.f->linedefined=line;
+checknext(ls,'(');
+if(needself){
+new_localvarliteral(ls,"self",0);
+adjustlocalvars(ls,1);
+}
+parlist(ls);
+checknext(ls,')');
+chunk(ls);
+new_fs.f->lastlinedefined=ls->linenumber;
+check_match(ls,TK_END,TK_FUNCTION,line);
+close_func(ls);
+pushclosure(ls,&new_fs,e);
+}
+static int explist1(LexState*ls,expdesc*v){
+int n=1;
+expr(ls,v);
+while(testnext(ls,',')){
+luaK_exp2nextreg(ls->fs,v);
+expr(ls,v);
+n++;
+}
+return n;
+}
+static void funcargs(LexState*ls,expdesc*f){
+FuncState*fs=ls->fs;
+expdesc args;
+int base,nparams;
+int line=ls->linenumber;
+switch(ls->t.token){
+case'(':{
+if(line!=ls->lastline)
+luaX_syntaxerror(ls,"ambiguous syntax (function call x new statement)");
+luaX_next(ls);
+if(ls->t.token==')')
+args.k=VVOID;
+else{
+explist1(ls,&args);
+luaK_setmultret(fs,&args);
+}
+check_match(ls,')','(',line);
+break;
+}
+case'{':{
+constructor(ls,&args);
+break;
+}
+case TK_STRING:{
+codestring(ls,&args,ls->t.seminfo.ts);
+luaX_next(ls);
+break;
+}
+default:{
+luaX_syntaxerror(ls,"function arguments expected");
+return;
+}
+}
+base=f->u.s.info;
+if(hasmultret(args.k))
+nparams=(-1);
+else{
+if(args.k!=VVOID)
+luaK_exp2nextreg(fs,&args);
+nparams=fs->freereg-(base+1);
+}
+init_exp(f,VCALL,luaK_codeABC(fs,OP_CALL,base,nparams+1,2));
+luaK_fixline(fs,line);
+fs->freereg=base+1;
+}
+static void prefixexp(LexState*ls,expdesc*v){
+switch(ls->t.token){
+case'(':{
+int line=ls->linenumber;
+luaX_next(ls);
+expr(ls,v);
+check_match(ls,')','(',line);
+luaK_dischargevars(ls->fs,v);
+return;
+}
+case TK_NAME:{
+singlevar(ls,v);
+return;
+}
+default:{
+luaX_syntaxerror(ls,"unexpected symbol");
+return;
+}
+}
+}
+static void primaryexp(LexState*ls,expdesc*v){
+FuncState*fs=ls->fs;
+prefixexp(ls,v);
+for(;;){
+switch(ls->t.token){
+case'.':{
+field(ls,v);
+break;
+}
+case'[':{
+expdesc key;
+luaK_exp2anyreg(fs,v);
+yindex(ls,&key);
+luaK_indexed(fs,v,&key);
+break;
+}
+case':':{
+expdesc key;
+luaX_next(ls);
+checkname(ls,&key);
+luaK_self(fs,v,&key);
+funcargs(ls,v);
+break;
+}
+case'(':case TK_STRING:case'{':{
+luaK_exp2nextreg(fs,v);
+funcargs(ls,v);
+break;
+}
+default:return;
+}
+}
+}
+static void simpleexp(LexState*ls,expdesc*v){
+switch(ls->t.token){
+case TK_NUMBER:{
+init_exp(v,VKNUM,0);
+v->u.nval=ls->t.seminfo.r;
+break;
+}
+case TK_STRING:{
+codestring(ls,v,ls->t.seminfo.ts);
+break;
+}
+case TK_NIL:{
+init_exp(v,VNIL,0);
+break;
+}
+case TK_TRUE:{
+init_exp(v,VTRUE,0);
+break;
+}
+case TK_FALSE:{
+init_exp(v,VFALSE,0);
+break;
+}
+case TK_DOTS:{
+FuncState*fs=ls->fs;
+check_condition(ls,fs->f->is_vararg,
+"cannot use "LUA_QL("...")" outside a vararg function");
+fs->f->is_vararg&=~4;
+init_exp(v,VVARARG,luaK_codeABC(fs,OP_VARARG,0,1,0));
+break;
+}
+case'{':{
+constructor(ls,v);
+return;
+}
+case TK_FUNCTION:{
+luaX_next(ls);
+body(ls,v,0,ls->linenumber);
+return;
+}
+default:{
+primaryexp(ls,v);
+return;
+}
+}
+luaX_next(ls);
+}
+static UnOpr getunopr(int op){
+switch(op){
+case TK_NOT:return OPR_NOT;
+case'-':return OPR_MINUS;
+case'#':return OPR_LEN;
+default:return OPR_NOUNOPR;
+}
+}
+static BinOpr getbinopr(int op){
+switch(op){
+case'+':return OPR_ADD;
+case'-':return OPR_SUB;
+case'*':return OPR_MUL;
+case'/':return OPR_DIV;
+case'%':return OPR_MOD;
+case'^':return OPR_POW;
+case TK_CONCAT:return OPR_CONCAT;
+case TK_NE:return OPR_NE;
+case TK_EQ:return OPR_EQ;
+case'<':return OPR_LT;
+case TK_LE:return OPR_LE;
+case'>':return OPR_GT;
+case TK_GE:return OPR_GE;
+case TK_AND:return OPR_AND;
+case TK_OR:return OPR_OR;
+default:return OPR_NOBINOPR;
+}
+}
+static const struct{
+lu_byte left;
+lu_byte right;
+}priority[]={
+{6,6},{6,6},{7,7},{7,7},{7,7},
+{10,9},{5,4},
+{3,3},{3,3},
+{3,3},{3,3},{3,3},{3,3},
+{2,2},{1,1}
+};
+static BinOpr subexpr(LexState*ls,expdesc*v,unsigned int limit){
+BinOpr op;
+UnOpr uop;
+enterlevel(ls);
+uop=getunopr(ls->t.token);
+if(uop!=OPR_NOUNOPR){
+luaX_next(ls);
+subexpr(ls,v,8);
+luaK_prefix(ls->fs,uop,v);
+}
+else simpleexp(ls,v);
+op=getbinopr(ls->t.token);
+while(op!=OPR_NOBINOPR&&priority[op].left>limit){
+expdesc v2;
+BinOpr nextop;
+luaX_next(ls);
+luaK_infix(ls->fs,op,v);
+nextop=subexpr(ls,&v2,priority[op].right);
+luaK_posfix(ls->fs,op,v,&v2);
+op=nextop;
+}
+leavelevel(ls);
+return op;
+}
+static void expr(LexState*ls,expdesc*v){
+subexpr(ls,v,0);
+}
+static int block_follow(int token){
+switch(token){
+case TK_ELSE:case TK_ELSEIF:case TK_END:
+case TK_UNTIL:case TK_EOS:
+return 1;
+default:return 0;
+}
+}
+static void block(LexState*ls){
+FuncState*fs=ls->fs;
+BlockCnt bl;
+enterblock(fs,&bl,0);
+chunk(ls);
+leaveblock(fs);
+}
+struct LHS_assign{
+struct LHS_assign*prev;
+expdesc v;
+};
+static void check_conflict(LexState*ls,struct LHS_assign*lh,expdesc*v){
+FuncState*fs=ls->fs;
+int extra=fs->freereg;
+int conflict=0;
+for(;lh;lh=lh->prev){
+if(lh->v.k==VINDEXED){
+if(lh->v.u.s.info==v->u.s.info){
+conflict=1;
+lh->v.u.s.info=extra;
+}
+if(lh->v.u.s.aux==v->u.s.info){
+conflict=1;
+lh->v.u.s.aux=extra;
+}
+}
+}
+if(conflict){
+luaK_codeABC(fs,OP_MOVE,fs->freereg,v->u.s.info,0);
+luaK_reserveregs(fs,1);
+}
+}
+static void assignment(LexState*ls,struct LHS_assign*lh,int nvars){
+expdesc e;
+check_condition(ls,VLOCAL<=lh->v.k&&lh->v.k<=VINDEXED,
+"syntax error");
+if(testnext(ls,',')){
+struct LHS_assign nv;
+nv.prev=lh;
+primaryexp(ls,&nv.v);
+if(nv.v.k==VLOCAL)
+check_conflict(ls,lh,&nv.v);
+luaY_checklimit(ls->fs,nvars,200-ls->L->nCcalls,
+"variables in assignment");
+assignment(ls,&nv,nvars+1);
+}
+else{
+int nexps;
+checknext(ls,'=');
+nexps=explist1(ls,&e);
+if(nexps!=nvars){
+adjust_assign(ls,nvars,nexps,&e);
+if(nexps>nvars)
+ls->fs->freereg-=nexps-nvars;
+}
+else{
+luaK_setoneret(ls->fs,&e);
+luaK_storevar(ls->fs,&lh->v,&e);
+return;
+}
+}
+init_exp(&e,VNONRELOC,ls->fs->freereg-1);
+luaK_storevar(ls->fs,&lh->v,&e);
+}
+static int cond(LexState*ls){
+expdesc v;
+expr(ls,&v);
+if(v.k==VNIL)v.k=VFALSE;
+luaK_goiftrue(ls->fs,&v);
+return v.f;
+}
+static void breakstat(LexState*ls){
+FuncState*fs=ls->fs;
+BlockCnt*bl=fs->bl;
+int upval=0;
+while(bl&&!bl->isbreakable){
+upval|=bl->upval;
+bl=bl->previous;
+}
+if(!bl)
+luaX_syntaxerror(ls,"no loop to break");
+if(upval)
+luaK_codeABC(fs,OP_CLOSE,bl->nactvar,0,0);
+luaK_concat(fs,&bl->breaklist,luaK_jump(fs));
+}
+static void whilestat(LexState*ls,int line){
+FuncState*fs=ls->fs;
+int whileinit;
+int condexit;
+BlockCnt bl;
+luaX_next(ls);
+whileinit=luaK_getlabel(fs);
+condexit=cond(ls);
+enterblock(fs,&bl,1);
+checknext(ls,TK_DO);
+block(ls);
+luaK_patchlist(fs,luaK_jump(fs),whileinit);
+check_match(ls,TK_END,TK_WHILE,line);
+leaveblock(fs);
+luaK_patchtohere(fs,condexit);
+}
+static void repeatstat(LexState*ls,int line){
+int condexit;
+FuncState*fs=ls->fs;
+int repeat_init=luaK_getlabel(fs);
+BlockCnt bl1,bl2;
+enterblock(fs,&bl1,1);
+enterblock(fs,&bl2,0);
+luaX_next(ls);
+chunk(ls);
+check_match(ls,TK_UNTIL,TK_REPEAT,line);
+condexit=cond(ls);
+if(!bl2.upval){
+leaveblock(fs);
+luaK_patchlist(ls->fs,condexit,repeat_init);
+}
+else{
+breakstat(ls);
+luaK_patchtohere(ls->fs,condexit);
+leaveblock(fs);
+luaK_patchlist(ls->fs,luaK_jump(fs),repeat_init);
+}
+leaveblock(fs);
+}
+static int exp1(LexState*ls){
+expdesc e;
+int k;
+expr(ls,&e);
+k=e.k;
+luaK_exp2nextreg(ls->fs,&e);
+return k;
+}
+static void forbody(LexState*ls,int base,int line,int nvars,int isnum){
+BlockCnt bl;
+FuncState*fs=ls->fs;
+int prep,endfor;
+adjustlocalvars(ls,3);
+checknext(ls,TK_DO);
+prep=isnum?luaK_codeAsBx(fs,OP_FORPREP,base,(-1)):luaK_jump(fs);
+enterblock(fs,&bl,0);
+adjustlocalvars(ls,nvars);
+luaK_reserveregs(fs,nvars);
+block(ls);
+leaveblock(fs);
+luaK_patchtohere(fs,prep);
+endfor=(isnum)?luaK_codeAsBx(fs,OP_FORLOOP,base,(-1)):
+luaK_codeABC(fs,OP_TFORLOOP,base,0,nvars);
+luaK_fixline(fs,line);
+luaK_patchlist(fs,(isnum?endfor:luaK_jump(fs)),prep+1);
+}
+static void fornum(LexState*ls,TString*varname,int line){
+FuncState*fs=ls->fs;
+int base=fs->freereg;
+new_localvarliteral(ls,"(for index)",0);
+new_localvarliteral(ls,"(for limit)",1);
+new_localvarliteral(ls,"(for step)",2);
+new_localvar(ls,varname,3);
+checknext(ls,'=');
+exp1(ls);
+checknext(ls,',');
+exp1(ls);
+if(testnext(ls,','))
+exp1(ls);
+else{
+luaK_codeABx(fs,OP_LOADK,fs->freereg,luaK_numberK(fs,1));
+luaK_reserveregs(fs,1);
+}
+forbody(ls,base,line,1,1);
+}
+static void forlist(LexState*ls,TString*indexname){
+FuncState*fs=ls->fs;
+expdesc e;
+int nvars=0;
+int line;
+int base=fs->freereg;
+new_localvarliteral(ls,"(for generator)",nvars++);
+new_localvarliteral(ls,"(for state)",nvars++);
+new_localvarliteral(ls,"(for control)",nvars++);
+new_localvar(ls,indexname,nvars++);
+while(testnext(ls,','))
+new_localvar(ls,str_checkname(ls),nvars++);
+checknext(ls,TK_IN);
+line=ls->linenumber;
+adjust_assign(ls,3,explist1(ls,&e),&e);
+luaK_checkstack(fs,3);
+forbody(ls,base,line,nvars-3,0);
+}
+static void forstat(LexState*ls,int line){
+FuncState*fs=ls->fs;
+TString*varname;
+BlockCnt bl;
+enterblock(fs,&bl,1);
+luaX_next(ls);
+varname=str_checkname(ls);
+switch(ls->t.token){
+case'=':fornum(ls,varname,line);break;
+case',':case TK_IN:forlist(ls,varname);break;
+default:luaX_syntaxerror(ls,LUA_QL("=")" or "LUA_QL("in")" expected");
+}
+check_match(ls,TK_END,TK_FOR,line);
+leaveblock(fs);
+}
+static int test_then_block(LexState*ls){
+int condexit;
+luaX_next(ls);
+condexit=cond(ls);
+checknext(ls,TK_THEN);
+block(ls);
+return condexit;
+}
+static void ifstat(LexState*ls,int line){
+FuncState*fs=ls->fs;
+int flist;
+int escapelist=(-1);
+flist=test_then_block(ls);
+while(ls->t.token==TK_ELSEIF){
+luaK_concat(fs,&escapelist,luaK_jump(fs));
+luaK_patchtohere(fs,flist);
+flist=test_then_block(ls);
+}
+if(ls->t.token==TK_ELSE){
+luaK_concat(fs,&escapelist,luaK_jump(fs));
+luaK_patchtohere(fs,flist);
+luaX_next(ls);
+block(ls);
+}
+else
+luaK_concat(fs,&escapelist,flist);
+luaK_patchtohere(fs,escapelist);
+check_match(ls,TK_END,TK_IF,line);
+}
+static void localfunc(LexState*ls){
+expdesc v,b;
+FuncState*fs=ls->fs;
+new_localvar(ls,str_checkname(ls),0);
+init_exp(&v,VLOCAL,fs->freereg);
+luaK_reserveregs(fs,1);
+adjustlocalvars(ls,1);
+body(ls,&b,0,ls->linenumber);
+luaK_storevar(fs,&v,&b);
+getlocvar(fs,fs->nactvar-1).startpc=fs->pc;
+}
+static void localstat(LexState*ls){
+int nvars=0;
+int nexps;
+expdesc e;
+do{
+new_localvar(ls,str_checkname(ls),nvars++);
+}while(testnext(ls,','));
+if(testnext(ls,'='))
+nexps=explist1(ls,&e);
+else{
+e.k=VVOID;
+nexps=0;
+}
+adjust_assign(ls,nvars,nexps,&e);
+adjustlocalvars(ls,nvars);
+}
+static int funcname(LexState*ls,expdesc*v){
+int needself=0;
+singlevar(ls,v);
+while(ls->t.token=='.')
+field(ls,v);
+if(ls->t.token==':'){
+needself=1;
+field(ls,v);
+}
+return needself;
+}
+static void funcstat(LexState*ls,int line){
+int needself;
+expdesc v,b;
+luaX_next(ls);
+needself=funcname(ls,&v);
+body(ls,&b,needself,line);
+luaK_storevar(ls->fs,&v,&b);
+luaK_fixline(ls->fs,line);
+}
+static void exprstat(LexState*ls){
+FuncState*fs=ls->fs;
+struct LHS_assign v;
+primaryexp(ls,&v.v);
+if(v.v.k==VCALL)
+SETARG_C(getcode(fs,&v.v),1);
+else{
+v.prev=NULL;
+assignment(ls,&v,1);
+}
+}
+static void retstat(LexState*ls){
+FuncState*fs=ls->fs;
+expdesc e;
+int first,nret;
+luaX_next(ls);
+if(block_follow(ls->t.token)||ls->t.token==';')
+first=nret=0;
+else{
+nret=explist1(ls,&e);
+if(hasmultret(e.k)){
+luaK_setmultret(fs,&e);
+if(e.k==VCALL&&nret==1){
+SET_OPCODE(getcode(fs,&e),OP_TAILCALL);
+}
+first=fs->nactvar;
+nret=(-1);
+}
+else{
+if(nret==1)
+first=luaK_exp2anyreg(fs,&e);
+else{
+luaK_exp2nextreg(fs,&e);
+first=fs->nactvar;
+}
+}
+}
+luaK_ret(fs,first,nret);
+}
+static int statement(LexState*ls){
+int line=ls->linenumber;
+switch(ls->t.token){
+case TK_IF:{
+ifstat(ls,line);
+return 0;
+}
+case TK_WHILE:{
+whilestat(ls,line);
+return 0;
+}
+case TK_DO:{
+luaX_next(ls);
+block(ls);
+check_match(ls,TK_END,TK_DO,line);
+return 0;
+}
+case TK_FOR:{
+forstat(ls,line);
+return 0;
+}
+case TK_REPEAT:{
+repeatstat(ls,line);
+return 0;
+}
+case TK_FUNCTION:{
+funcstat(ls,line);
+return 0;
+}
+case TK_LOCAL:{
+luaX_next(ls);
+if(testnext(ls,TK_FUNCTION))
+localfunc(ls);
+else
+localstat(ls);
+return 0;
+}
+case TK_RETURN:{
+retstat(ls);
+return 1;
+}
+case TK_BREAK:{
+luaX_next(ls);
+breakstat(ls);
+return 1;
+}
+default:{
+exprstat(ls);
+return 0;
+}
+}
+}
+static void chunk(LexState*ls){
+int islast=0;
+enterlevel(ls);
+while(!islast&&!block_follow(ls->t.token)){
+islast=statement(ls);
+testnext(ls,';');
+ls->fs->freereg=ls->fs->nactvar;
+}
+leavelevel(ls);
+}
+static const TValue*luaV_tonumber(const TValue*obj,TValue*n){
+lua_Number num;
+if(ttisnumber(obj))return obj;
+if(ttisstring(obj)&&luaO_str2d(svalue(obj),&num)){
+setnvalue(n,num);
+return n;
+}
+else
+return NULL;
+}
+static int luaV_tostring(lua_State*L,StkId obj){
+if(!ttisnumber(obj))
+return 0;
+else{
+char s[32];
+lua_Number n=nvalue(obj);
+lua_number2str(s,n);
+setsvalue(L,obj,luaS_new(L,s));
+return 1;
+}
+}
+static void callTMres(lua_State*L,StkId res,const TValue*f,
+const TValue*p1,const TValue*p2){
+ptrdiff_t result=savestack(L,res);
+setobj(L,L->top,f);
+setobj(L,L->top+1,p1);
+setobj(L,L->top+2,p2);
+luaD_checkstack(L,3);
+L->top+=3;
+luaD_call(L,L->top-3,1);
+res=restorestack(L,result);
+L->top--;
+setobj(L,res,L->top);
+}
+static void callTM(lua_State*L,const TValue*f,const TValue*p1,
+const TValue*p2,const TValue*p3){
+setobj(L,L->top,f);
+setobj(L,L->top+1,p1);
+setobj(L,L->top+2,p2);
+setobj(L,L->top+3,p3);
+luaD_checkstack(L,4);
+L->top+=4;
+luaD_call(L,L->top-4,0);
+}
+static void luaV_gettable(lua_State*L,const TValue*t,TValue*key,StkId val){
+int loop;
+for(loop=0;loop<100;loop++){
+const TValue*tm;
+if(ttistable(t)){
+Table*h=hvalue(t);
+const TValue*res=luaH_get(h,key);
+if(!ttisnil(res)||
+(tm=fasttm(L,h->metatable,TM_INDEX))==NULL){
+setobj(L,val,res);
+return;
+}
+}
+else if(ttisnil(tm=luaT_gettmbyobj(L,t,TM_INDEX)))
+luaG_typeerror(L,t,"index");
+if(ttisfunction(tm)){
+callTMres(L,val,tm,t,key);
+return;
+}
+t=tm;
+}
+luaG_runerror(L,"loop in gettable");
+}
+static void luaV_settable(lua_State*L,const TValue*t,TValue*key,StkId val){
+int loop;
+TValue temp;
+for(loop=0;loop<100;loop++){
+const TValue*tm;
+if(ttistable(t)){
+Table*h=hvalue(t);
+TValue*oldval=luaH_set(L,h,key);
+if(!ttisnil(oldval)||
+(tm=fasttm(L,h->metatable,TM_NEWINDEX))==NULL){
+setobj(L,oldval,val);
+h->flags=0;
+luaC_barriert(L,h,val);
+return;
+}
+}
+else if(ttisnil(tm=luaT_gettmbyobj(L,t,TM_NEWINDEX)))
+luaG_typeerror(L,t,"index");
+if(ttisfunction(tm)){
+callTM(L,tm,t,key,val);
+return;
+}
+setobj(L,&temp,tm);
+t=&temp;
+}
+luaG_runerror(L,"loop in settable");
+}
+static int call_binTM(lua_State*L,const TValue*p1,const TValue*p2,
+StkId res,TMS event){
+const TValue*tm=luaT_gettmbyobj(L,p1,event);
+if(ttisnil(tm))
+tm=luaT_gettmbyobj(L,p2,event);
+if(ttisnil(tm))return 0;
+callTMres(L,res,tm,p1,p2);
+return 1;
+}
+static const TValue*get_compTM(lua_State*L,Table*mt1,Table*mt2,
+TMS event){
+const TValue*tm1=fasttm(L,mt1,event);
+const TValue*tm2;
+if(tm1==NULL)return NULL;
+if(mt1==mt2)return tm1;
+tm2=fasttm(L,mt2,event);
+if(tm2==NULL)return NULL;
+if(luaO_rawequalObj(tm1,tm2))
+return tm1;
+return NULL;
+}
+static int call_orderTM(lua_State*L,const TValue*p1,const TValue*p2,
+TMS event){
+const TValue*tm1=luaT_gettmbyobj(L,p1,event);
+const TValue*tm2;
+if(ttisnil(tm1))return-1;
+tm2=luaT_gettmbyobj(L,p2,event);
+if(!luaO_rawequalObj(tm1,tm2))
+return-1;
+callTMres(L,L->top,tm1,p1,p2);
+return!l_isfalse(L->top);
+}
+static int l_strcmp(const TString*ls,const TString*rs){
+const char*l=getstr(ls);
+size_t ll=ls->tsv.len;
+const char*r=getstr(rs);
+size_t lr=rs->tsv.len;
+for(;;){
+int temp=strcoll(l,r);
+if(temp!=0)return temp;
+else{
+size_t len=strlen(l);
+if(len==lr)
+return(len==ll)?0:1;
+else if(len==ll)
+return-1;
+len++;
+l+=len;ll-=len;r+=len;lr-=len;
+}
+}
+}
+static int luaV_lessthan(lua_State*L,const TValue*l,const TValue*r){
+int res;
+if(ttype(l)!=ttype(r))
+return luaG_ordererror(L,l,r);
+else if(ttisnumber(l))
+return luai_numlt(nvalue(l),nvalue(r));
+else if(ttisstring(l))
+return l_strcmp(rawtsvalue(l),rawtsvalue(r))<0;
+else if((res=call_orderTM(L,l,r,TM_LT))!=-1)
+return res;
+return luaG_ordererror(L,l,r);
+}
+static int lessequal(lua_State*L,const TValue*l,const TValue*r){
+int res;
+if(ttype(l)!=ttype(r))
+return luaG_ordererror(L,l,r);
+else if(ttisnumber(l))
+return luai_numle(nvalue(l),nvalue(r));
+else if(ttisstring(l))
+return l_strcmp(rawtsvalue(l),rawtsvalue(r))<=0;
+else if((res=call_orderTM(L,l,r,TM_LE))!=-1)
+return res;
+else if((res=call_orderTM(L,r,l,TM_LT))!=-1)
+return!res;
+return luaG_ordererror(L,l,r);
+}
+static int luaV_equalval(lua_State*L,const TValue*t1,const TValue*t2){
+const TValue*tm;
+switch(ttype(t1)){
+case 0:return 1;
+case 3:return luai_numeq(nvalue(t1),nvalue(t2));
+case 1:return bvalue(t1)==bvalue(t2);
+case 2:return pvalue(t1)==pvalue(t2);
+case 7:{
+if(uvalue(t1)==uvalue(t2))return 1;
+tm=get_compTM(L,uvalue(t1)->metatable,uvalue(t2)->metatable,
+TM_EQ);
+break;
+}
+case 5:{
+if(hvalue(t1)==hvalue(t2))return 1;
+tm=get_compTM(L,hvalue(t1)->metatable,hvalue(t2)->metatable,TM_EQ);
+break;
+}
+default:return gcvalue(t1)==gcvalue(t2);
+}
+if(tm==NULL)return 0;
+callTMres(L,L->top,tm,t1,t2);
+return!l_isfalse(L->top);
+}
+static void luaV_concat(lua_State*L,int total,int last){
+do{
+StkId top=L->base+last+1;
+int n=2;
+if(!(ttisstring(top-2)||ttisnumber(top-2))||!tostring(L,top-1)){
+if(!call_binTM(L,top-2,top-1,top-2,TM_CONCAT))
+luaG_concaterror(L,top-2,top-1);
+}else if(tsvalue(top-1)->len==0)
+(void)tostring(L,top-2);
+else{
+size_t tl=tsvalue(top-1)->len;
+char*buffer;
+int i;
+for(n=1;n<total&&tostring(L,top-n-1);n++){
+size_t l=tsvalue(top-n-1)->len;
+if(l>=((size_t)(~(size_t)0)-2)-tl)luaG_runerror(L,"string length overflow");
+tl+=l;
+}
+buffer=luaZ_openspace(L,&G(L)->buff,tl);
+tl=0;
+for(i=n;i>0;i--){
+size_t l=tsvalue(top-i)->len;
+memcpy(buffer+tl,svalue(top-i),l);
+tl+=l;
+}
+setsvalue(L,top-n,luaS_newlstr(L,buffer,tl));
+}
+total-=n-1;
+last-=n-1;
+}while(total>1);
+}
+static void Arith(lua_State*L,StkId ra,const TValue*rb,
+const TValue*rc,TMS op){
+TValue tempb,tempc;
+const TValue*b,*c;
+if((b=luaV_tonumber(rb,&tempb))!=NULL&&
+(c=luaV_tonumber(rc,&tempc))!=NULL){
+lua_Number nb=nvalue(b),nc=nvalue(c);
+switch(op){
+case TM_ADD:setnvalue(ra,luai_numadd(nb,nc));break;
+case TM_SUB:setnvalue(ra,luai_numsub(nb,nc));break;
+case TM_MUL:setnvalue(ra,luai_nummul(nb,nc));break;
+case TM_DIV:setnvalue(ra,luai_numdiv(nb,nc));break;
+case TM_MOD:setnvalue(ra,luai_nummod(nb,nc));break;
+case TM_POW:setnvalue(ra,luai_numpow(nb,nc));break;
+case TM_UNM:setnvalue(ra,luai_numunm(nb));break;
+default:break;
+}
+}
+else if(!call_binTM(L,rb,rc,ra,op))
+luaG_aritherror(L,rb,rc);
+}
+#define runtime_check(L,c){if(!(c))break;}
+#define RA(i)(base+GETARG_A(i))
+#define RB(i)check_exp(getBMode(GET_OPCODE(i))==OpArgR,base+GETARG_B(i))
+#define RKB(i)check_exp(getBMode(GET_OPCODE(i))==OpArgK,ISK(GETARG_B(i))?k+INDEXK(GETARG_B(i)):base+GETARG_B(i))
+#define RKC(i)check_exp(getCMode(GET_OPCODE(i))==OpArgK,ISK(GETARG_C(i))?k+INDEXK(GETARG_C(i)):base+GETARG_C(i))
+#define KBx(i)check_exp(getBMode(GET_OPCODE(i))==OpArgK,k+GETARG_Bx(i))
+#define dojump(L,pc,i){(pc)+=(i);}
+#define Protect(x){L->savedpc=pc;{x;};base=L->base;}
+#define arith_op(op,tm){TValue*rb=RKB(i);TValue*rc=RKC(i);if(ttisnumber(rb)&&ttisnumber(rc)){lua_Number nb=nvalue(rb),nc=nvalue(rc);setnvalue(ra,op(nb,nc));}else Protect(Arith(L,ra,rb,rc,tm));}
+static void luaV_execute(lua_State*L,int nexeccalls){
+LClosure*cl;
+StkId base;
+TValue*k;
+const Instruction*pc;
+reentry:
+pc=L->savedpc;
+cl=&clvalue(L->ci->func)->l;
+base=L->base;
+k=cl->p->k;
+for(;;){
+const Instruction i=*pc++;
+StkId ra;
+ra=RA(i);
+switch(GET_OPCODE(i)){
+case OP_MOVE:{
+setobj(L,ra,RB(i));
+continue;
+}
+case OP_LOADK:{
+setobj(L,ra,KBx(i));
+continue;
+}
+case OP_LOADBOOL:{
+setbvalue(ra,GETARG_B(i));
+if(GETARG_C(i))pc++;
+continue;
+}
+case OP_LOADNIL:{
+TValue*rb=RB(i);
+do{
+setnilvalue(rb--);
+}while(rb>=ra);
+continue;
+}
+case OP_GETUPVAL:{
+int b=GETARG_B(i);
+setobj(L,ra,cl->upvals[b]->v);
+continue;
+}
+case OP_GETGLOBAL:{
+TValue g;
+TValue*rb=KBx(i);
+sethvalue(L,&g,cl->env);
+Protect(luaV_gettable(L,&g,rb,ra));
+continue;
+}
+case OP_GETTABLE:{
+Protect(luaV_gettable(L,RB(i),RKC(i),ra));
+continue;
+}
+case OP_SETGLOBAL:{
+TValue g;
+sethvalue(L,&g,cl->env);
+Protect(luaV_settable(L,&g,KBx(i),ra));
+continue;
+}
+case OP_SETUPVAL:{
+UpVal*uv=cl->upvals[GETARG_B(i)];
+setobj(L,uv->v,ra);
+luaC_barrier(L,uv,ra);
+continue;
+}
+case OP_SETTABLE:{
+Protect(luaV_settable(L,ra,RKB(i),RKC(i)));
+continue;
+}
+case OP_NEWTABLE:{
+int b=GETARG_B(i);
+int c=GETARG_C(i);
+sethvalue(L,ra,luaH_new(L,luaO_fb2int(b),luaO_fb2int(c)));
+Protect(luaC_checkGC(L));
+continue;
+}
+case OP_SELF:{
+StkId rb=RB(i);
+setobj(L,ra+1,rb);
+Protect(luaV_gettable(L,rb,RKC(i),ra));
+continue;
+}
+case OP_ADD:{
+arith_op(luai_numadd,TM_ADD);
+continue;
+}
+case OP_SUB:{
+arith_op(luai_numsub,TM_SUB);
+continue;
+}
+case OP_MUL:{
+arith_op(luai_nummul,TM_MUL);
+continue;
+}
+case OP_DIV:{
+arith_op(luai_numdiv,TM_DIV);
+continue;
+}
+case OP_MOD:{
+arith_op(luai_nummod,TM_MOD);
+continue;
+}
+case OP_POW:{
+arith_op(luai_numpow,TM_POW);
+continue;
+}
+case OP_UNM:{
+TValue*rb=RB(i);
+if(ttisnumber(rb)){
+lua_Number nb=nvalue(rb);
+setnvalue(ra,luai_numunm(nb));
+}
+else{
+Protect(Arith(L,ra,rb,rb,TM_UNM));
+}
+continue;
+}
+case OP_NOT:{
+int res=l_isfalse(RB(i));
+setbvalue(ra,res);
+continue;
+}
+case OP_LEN:{
+const TValue*rb=RB(i);
+switch(ttype(rb)){
+case 5:{
+setnvalue(ra,cast_num(luaH_getn(hvalue(rb))));
+break;
+}
+case 4:{
+setnvalue(ra,cast_num(tsvalue(rb)->len));
+break;
+}
+default:{
+Protect(
+if(!call_binTM(L,rb,(&luaO_nilobject_),ra,TM_LEN))
+luaG_typeerror(L,rb,"get length of");
+)
+}
+}
+continue;
+}
+case OP_CONCAT:{
+int b=GETARG_B(i);
+int c=GETARG_C(i);
+Protect(luaV_concat(L,c-b+1,c);luaC_checkGC(L));
+setobj(L,RA(i),base+b);
+continue;
+}
+case OP_JMP:{
+dojump(L,pc,GETARG_sBx(i));
+continue;
+}
+case OP_EQ:{
+TValue*rb=RKB(i);
+TValue*rc=RKC(i);
+Protect(
+if(equalobj(L,rb,rc)==GETARG_A(i))
+dojump(L,pc,GETARG_sBx(*pc));
+)
+pc++;
+continue;
+}
+case OP_LT:{
+Protect(
+if(luaV_lessthan(L,RKB(i),RKC(i))==GETARG_A(i))
+dojump(L,pc,GETARG_sBx(*pc));
+)
+pc++;
+continue;
+}
+case OP_LE:{
+Protect(
+if(lessequal(L,RKB(i),RKC(i))==GETARG_A(i))
+dojump(L,pc,GETARG_sBx(*pc));
+)
+pc++;
+continue;
+}
+case OP_TEST:{
+if(l_isfalse(ra)!=GETARG_C(i))
+dojump(L,pc,GETARG_sBx(*pc));
+pc++;
+continue;
+}
+case OP_TESTSET:{
+TValue*rb=RB(i);
+if(l_isfalse(rb)!=GETARG_C(i)){
+setobj(L,ra,rb);
+dojump(L,pc,GETARG_sBx(*pc));
+}
+pc++;
+continue;
+}
+case OP_CALL:{
+int b=GETARG_B(i);
+int nresults=GETARG_C(i)-1;
+if(b!=0)L->top=ra+b;
+L->savedpc=pc;
+switch(luaD_precall(L,ra,nresults)){
+case 0:{
+nexeccalls++;
+goto reentry;
+}
+case 1:{
+if(nresults>=0)L->top=L->ci->top;
+base=L->base;
+continue;
+}
+default:{
+return;
+}
+}
+}
+case OP_TAILCALL:{
+int b=GETARG_B(i);
+if(b!=0)L->top=ra+b;
+L->savedpc=pc;
+switch(luaD_precall(L,ra,(-1))){
+case 0:{
+CallInfo*ci=L->ci-1;
+int aux;
+StkId func=ci->func;
+StkId pfunc=(ci+1)->func;
+if(L->openupval)luaF_close(L,ci->base);
+L->base=ci->base=ci->func+((ci+1)->base-pfunc);
+for(aux=0;pfunc+aux<L->top;aux++)
+setobj(L,func+aux,pfunc+aux);
+ci->top=L->top=func+aux;
+ci->savedpc=L->savedpc;
+ci->tailcalls++;
+L->ci--;
+goto reentry;
+}
+case 1:{
+base=L->base;
+continue;
+}
+default:{
+return;
+}
+}
+}
+case OP_RETURN:{
+int b=GETARG_B(i);
+if(b!=0)L->top=ra+b-1;
+if(L->openupval)luaF_close(L,base);
+L->savedpc=pc;
+b=luaD_poscall(L,ra);
+if(--nexeccalls==0)
+return;
+else{
+if(b)L->top=L->ci->top;
+goto reentry;
+}
+}
+case OP_FORLOOP:{
+lua_Number step=nvalue(ra+2);
+lua_Number idx=luai_numadd(nvalue(ra),step);
+lua_Number limit=nvalue(ra+1);
+if(luai_numlt(0,step)?luai_numle(idx,limit)
+:luai_numle(limit,idx)){
+dojump(L,pc,GETARG_sBx(i));
+setnvalue(ra,idx);
+setnvalue(ra+3,idx);
+}
+continue;
+}
+case OP_FORPREP:{
+const TValue*init=ra;
+const TValue*plimit=ra+1;
+const TValue*pstep=ra+2;
+L->savedpc=pc;
+if(!tonumber(init,ra))
+luaG_runerror(L,LUA_QL("for")" initial value must be a number");
+else if(!tonumber(plimit,ra+1))
+luaG_runerror(L,LUA_QL("for")" limit must be a number");
+else if(!tonumber(pstep,ra+2))
+luaG_runerror(L,LUA_QL("for")" step must be a number");
+setnvalue(ra,luai_numsub(nvalue(ra),nvalue(pstep)));
+dojump(L,pc,GETARG_sBx(i));
+continue;
+}
+case OP_TFORLOOP:{
+StkId cb=ra+3;
+setobj(L,cb+2,ra+2);
+setobj(L,cb+1,ra+1);
+setobj(L,cb,ra);
+L->top=cb+3;
+Protect(luaD_call(L,cb,GETARG_C(i)));
+L->top=L->ci->top;
+cb=RA(i)+3;
+if(!ttisnil(cb)){
+setobj(L,cb-1,cb);
+dojump(L,pc,GETARG_sBx(*pc));
+}
+pc++;
+continue;
+}
+case OP_SETLIST:{
+int n=GETARG_B(i);
+int c=GETARG_C(i);
+int last;
+Table*h;
+if(n==0){
+n=cast_int(L->top-ra)-1;
+L->top=L->ci->top;
+}
+if(c==0)c=cast_int(*pc++);
+runtime_check(L,ttistable(ra));
+h=hvalue(ra);
+last=((c-1)*50)+n;
+if(last>h->sizearray)
+luaH_resizearray(L,h,last);
+for(;n>0;n--){
+TValue*val=ra+n;
+setobj(L,luaH_setnum(L,h,last--),val);
+luaC_barriert(L,h,val);
+}
+continue;
+}
+case OP_CLOSE:{
+luaF_close(L,ra);
+continue;
+}
+case OP_CLOSURE:{
+Proto*p;
+Closure*ncl;
+int nup,j;
+p=cl->p->p[GETARG_Bx(i)];
+nup=p->nups;
+ncl=luaF_newLclosure(L,nup,cl->env);
+ncl->l.p=p;
+for(j=0;j<nup;j++,pc++){
+if(GET_OPCODE(*pc)==OP_GETUPVAL)
+ncl->l.upvals[j]=cl->upvals[GETARG_B(*pc)];
+else{
+ncl->l.upvals[j]=luaF_findupval(L,base+GETARG_B(*pc));
+}
+}
+setclvalue(L,ra,ncl);
+Protect(luaC_checkGC(L));
+continue;
+}
+case OP_VARARG:{
+int b=GETARG_B(i)-1;
+int j;
+CallInfo*ci=L->ci;
+int n=cast_int(ci->base-ci->func)-cl->p->numparams-1;
+if(b==(-1)){
+Protect(luaD_checkstack(L,n));
+ra=RA(i);
+b=n;
+L->top=ra+n;
+}
+for(j=0;j<b;j++){
+if(j<n){
+setobj(L,ra+j,ci->base-n+j);
+}
+else{
+setnilvalue(ra+j);
+}
+}
+continue;
+}
+}
+}
+}
+#define api_checknelems(L,n)luai_apicheck(L,(n)<=(L->top-L->base))
+#define api_checkvalidindex(L,i)luai_apicheck(L,(i)!=(&luaO_nilobject_))
+#define api_incr_top(L){luai_apicheck(L,L->top<L->ci->top);L->top++;}
+static TValue*index2adr(lua_State*L,int idx){
+if(idx>0){
+TValue*o=L->base+(idx-1);
+luai_apicheck(L,idx<=L->ci->top-L->base);
+if(o>=L->top)return cast(TValue*,(&luaO_nilobject_));
+else return o;
+}
+else if(idx>(-10000)){
+luai_apicheck(L,idx!=0&&-idx<=L->top-L->base);
+return L->top+idx;
+}
+else switch(idx){
+case(-10000):return registry(L);
+case(-10001):{
+Closure*func=curr_func(L);
+sethvalue(L,&L->env,func->c.env);
+return&L->env;
+}
+case(-10002):return gt(L);
+default:{
+Closure*func=curr_func(L);
+idx=(-10002)-idx;
+return(idx<=func->c.nupvalues)
+?&func->c.upvalue[idx-1]
+:cast(TValue*,(&luaO_nilobject_));
+}
+}
+}
+static Table*getcurrenv(lua_State*L){
+if(L->ci==L->base_ci)
+return hvalue(gt(L));
+else{
+Closure*func=curr_func(L);
+return func->c.env;
+}
+}
+static int lua_checkstack(lua_State*L,int size){
+int res=1;
+if(size>8000||(L->top-L->base+size)>8000)
+res=0;
+else if(size>0){
+luaD_checkstack(L,size);
+if(L->ci->top<L->top+size)
+L->ci->top=L->top+size;
+}
+return res;
+}
+static lua_CFunction lua_atpanic(lua_State*L,lua_CFunction panicf){
+lua_CFunction old;
+old=G(L)->panic;
+G(L)->panic=panicf;
+return old;
+}
+static int lua_gettop(lua_State*L){
+return cast_int(L->top-L->base);
+}
+static void lua_settop(lua_State*L,int idx){
+if(idx>=0){
+luai_apicheck(L,idx<=L->stack_last-L->base);
+while(L->top<L->base+idx)
+setnilvalue(L->top++);
+L->top=L->base+idx;
+}
+else{
+luai_apicheck(L,-(idx+1)<=(L->top-L->base));
+L->top+=idx+1;
+}
+}
+static void lua_remove(lua_State*L,int idx){
+StkId p;
+p=index2adr(L,idx);
+api_checkvalidindex(L,p);
+while(++p<L->top)setobj(L,p-1,p);
+L->top--;
+}
+static void lua_insert(lua_State*L,int idx){
+StkId p;
+StkId q;
+p=index2adr(L,idx);
+api_checkvalidindex(L,p);
+for(q=L->top;q>p;q--)setobj(L,q,q-1);
+setobj(L,p,L->top);
+}
+static void lua_replace(lua_State*L,int idx){
+StkId o;
+if(idx==(-10001)&&L->ci==L->base_ci)
+luaG_runerror(L,"no calling environment");
+api_checknelems(L,1);
+o=index2adr(L,idx);
+api_checkvalidindex(L,o);
+if(idx==(-10001)){
+Closure*func=curr_func(L);
+luai_apicheck(L,ttistable(L->top-1));
+func->c.env=hvalue(L->top-1);
+luaC_barrier(L,func,L->top-1);
+}
+else{
+setobj(L,o,L->top-1);
+if(idx<(-10002))
+luaC_barrier(L,curr_func(L),L->top-1);
+}
+L->top--;
+}
+static void lua_pushvalue(lua_State*L,int idx){
+setobj(L,L->top,index2adr(L,idx));
+api_incr_top(L);
+}
+static int lua_type(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+return(o==(&luaO_nilobject_))?(-1):ttype(o);
+}
+static const char*lua_typename(lua_State*L,int t){
+UNUSED(L);
+return(t==(-1))?"no value":luaT_typenames[t];
+}
+static int lua_iscfunction(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+return iscfunction(o);
+}
+static int lua_isnumber(lua_State*L,int idx){
+TValue n;
+const TValue*o=index2adr(L,idx);
+return tonumber(o,&n);
+}
+static int lua_isstring(lua_State*L,int idx){
+int t=lua_type(L,idx);
+return(t==4||t==3);
+}
+static int lua_rawequal(lua_State*L,int index1,int index2){
+StkId o1=index2adr(L,index1);
+StkId o2=index2adr(L,index2);
+return(o1==(&luaO_nilobject_)||o2==(&luaO_nilobject_))?0
+:luaO_rawequalObj(o1,o2);
+}
+static int lua_lessthan(lua_State*L,int index1,int index2){
+StkId o1,o2;
+int i;
+o1=index2adr(L,index1);
+o2=index2adr(L,index2);
+i=(o1==(&luaO_nilobject_)||o2==(&luaO_nilobject_))?0
+:luaV_lessthan(L,o1,o2);
+return i;
+}
+static lua_Number lua_tonumber(lua_State*L,int idx){
+TValue n;
+const TValue*o=index2adr(L,idx);
+if(tonumber(o,&n))
+return nvalue(o);
+else
+return 0;
+}
+static lua_Integer lua_tointeger(lua_State*L,int idx){
+TValue n;
+const TValue*o=index2adr(L,idx);
+if(tonumber(o,&n)){
+lua_Integer res;
+lua_Number num=nvalue(o);
+lua_number2integer(res,num);
+return res;
+}
+else
+return 0;
+}
+static int lua_toboolean(lua_State*L,int idx){
+const TValue*o=index2adr(L,idx);
+return!l_isfalse(o);
+}
+static const char*lua_tolstring(lua_State*L,int idx,size_t*len){
+StkId o=index2adr(L,idx);
+if(!ttisstring(o)){
+if(!luaV_tostring(L,o)){
+if(len!=NULL)*len=0;
+return NULL;
+}
+luaC_checkGC(L);
+o=index2adr(L,idx);
+}
+if(len!=NULL)*len=tsvalue(o)->len;
+return svalue(o);
+}
+static size_t lua_objlen(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+switch(ttype(o)){
+case 4:return tsvalue(o)->len;
+case 7:return uvalue(o)->len;
+case 5:return luaH_getn(hvalue(o));
+case 3:{
+size_t l;
+l=(luaV_tostring(L,o)?tsvalue(o)->len:0);
+return l;
+}
+default:return 0;
+}
+}
+static lua_CFunction lua_tocfunction(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+return(!iscfunction(o))?NULL:clvalue(o)->c.f;
+}
+static void*lua_touserdata(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+switch(ttype(o)){
+case 7:return(rawuvalue(o)+1);
+case 2:return pvalue(o);
+default:return NULL;
+}
+}
+static void lua_pushnil(lua_State*L){
+setnilvalue(L->top);
+api_incr_top(L);
+}
+static void lua_pushnumber(lua_State*L,lua_Number n){
+setnvalue(L->top,n);
+api_incr_top(L);
+}
+static void lua_pushinteger(lua_State*L,lua_Integer n){
+setnvalue(L->top,cast_num(n));
+api_incr_top(L);
+}
+static void lua_pushlstring(lua_State*L,const char*s,size_t len){
+luaC_checkGC(L);
+setsvalue(L,L->top,luaS_newlstr(L,s,len));
+api_incr_top(L);
+}
+static void lua_pushstring(lua_State*L,const char*s){
+if(s==NULL)
+lua_pushnil(L);
+else
+lua_pushlstring(L,s,strlen(s));
+}
+static const char*lua_pushvfstring(lua_State*L,const char*fmt,
+va_list argp){
+const char*ret;
+luaC_checkGC(L);
+ret=luaO_pushvfstring(L,fmt,argp);
+return ret;
+}
+static const char*lua_pushfstring(lua_State*L,const char*fmt,...){
+const char*ret;
+va_list argp;
+luaC_checkGC(L);
+va_start(argp,fmt);
+ret=luaO_pushvfstring(L,fmt,argp);
+va_end(argp);
+return ret;
+}
+static void lua_pushcclosure(lua_State*L,lua_CFunction fn,int n){
+Closure*cl;
+luaC_checkGC(L);
+api_checknelems(L,n);
+cl=luaF_newCclosure(L,n,getcurrenv(L));
+cl->c.f=fn;
+L->top-=n;
+while(n--)
+setobj(L,&cl->c.upvalue[n],L->top+n);
+setclvalue(L,L->top,cl);
+api_incr_top(L);
+}
+static void lua_pushboolean(lua_State*L,int b){
+setbvalue(L->top,(b!=0));
+api_incr_top(L);
+}
+static int lua_pushthread(lua_State*L){
+setthvalue(L,L->top,L);
+api_incr_top(L);
+return(G(L)->mainthread==L);
+}
+static void lua_gettable(lua_State*L,int idx){
+StkId t;
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+luaV_gettable(L,t,L->top-1,L->top-1);
+}
+static void lua_getfield(lua_State*L,int idx,const char*k){
+StkId t;
+TValue key;
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+setsvalue(L,&key,luaS_new(L,k));
+luaV_gettable(L,t,&key,L->top);
+api_incr_top(L);
+}
+static void lua_rawget(lua_State*L,int idx){
+StkId t;
+t=index2adr(L,idx);
+luai_apicheck(L,ttistable(t));
+setobj(L,L->top-1,luaH_get(hvalue(t),L->top-1));
+}
+static void lua_rawgeti(lua_State*L,int idx,int n){
+StkId o;
+o=index2adr(L,idx);
+luai_apicheck(L,ttistable(o));
+setobj(L,L->top,luaH_getnum(hvalue(o),n));
+api_incr_top(L);
+}
+static void lua_createtable(lua_State*L,int narray,int nrec){
+luaC_checkGC(L);
+sethvalue(L,L->top,luaH_new(L,narray,nrec));
+api_incr_top(L);
+}
+static int lua_getmetatable(lua_State*L,int objindex){
+const TValue*obj;
+Table*mt=NULL;
+int res;
+obj=index2adr(L,objindex);
+switch(ttype(obj)){
+case 5:
+mt=hvalue(obj)->metatable;
+break;
+case 7:
+mt=uvalue(obj)->metatable;
+break;
+default:
+mt=G(L)->mt[ttype(obj)];
+break;
+}
+if(mt==NULL)
+res=0;
+else{
+sethvalue(L,L->top,mt);
+api_incr_top(L);
+res=1;
+}
+return res;
+}
+static void lua_getfenv(lua_State*L,int idx){
+StkId o;
+o=index2adr(L,idx);
+api_checkvalidindex(L,o);
+switch(ttype(o)){
+case 6:
+sethvalue(L,L->top,clvalue(o)->c.env);
+break;
+case 7:
+sethvalue(L,L->top,uvalue(o)->env);
+break;
+case 8:
+setobj(L,L->top,gt(thvalue(o)));
+break;
+default:
+setnilvalue(L->top);
+break;
+}
+api_incr_top(L);
+}
+static void lua_settable(lua_State*L,int idx){
+StkId t;
+api_checknelems(L,2);
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+luaV_settable(L,t,L->top-2,L->top-1);
+L->top-=2;
+}
+static void lua_setfield(lua_State*L,int idx,const char*k){
+StkId t;
+TValue key;
+api_checknelems(L,1);
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+setsvalue(L,&key,luaS_new(L,k));
+luaV_settable(L,t,&key,L->top-1);
+L->top--;
+}
+static void lua_rawset(lua_State*L,int idx){
+StkId t;
+api_checknelems(L,2);
+t=index2adr(L,idx);
+luai_apicheck(L,ttistable(t));
+setobj(L,luaH_set(L,hvalue(t),L->top-2),L->top-1);
+luaC_barriert(L,hvalue(t),L->top-1);
+L->top-=2;
+}
+static void lua_rawseti(lua_State*L,int idx,int n){
+StkId o;
+api_checknelems(L,1);
+o=index2adr(L,idx);
+luai_apicheck(L,ttistable(o));
+setobj(L,luaH_setnum(L,hvalue(o),n),L->top-1);
+luaC_barriert(L,hvalue(o),L->top-1);
+L->top--;
+}
+static int lua_setmetatable(lua_State*L,int objindex){
+TValue*obj;
+Table*mt;
+api_checknelems(L,1);
+obj=index2adr(L,objindex);
+api_checkvalidindex(L,obj);
+if(ttisnil(L->top-1))
+mt=NULL;
+else{
+luai_apicheck(L,ttistable(L->top-1));
+mt=hvalue(L->top-1);
+}
+switch(ttype(obj)){
+case 5:{
+hvalue(obj)->metatable=mt;
+if(mt)
+luaC_objbarriert(L,hvalue(obj),mt);
+break;
+}
+case 7:{
+uvalue(obj)->metatable=mt;
+if(mt)
+luaC_objbarrier(L,rawuvalue(obj),mt);
+break;
+}
+default:{
+G(L)->mt[ttype(obj)]=mt;
+break;
+}
+}
+L->top--;
+return 1;
+}
+static int lua_setfenv(lua_State*L,int idx){
+StkId o;
+int res=1;
+api_checknelems(L,1);
+o=index2adr(L,idx);
+api_checkvalidindex(L,o);
+luai_apicheck(L,ttistable(L->top-1));
+switch(ttype(o)){
+case 6:
+clvalue(o)->c.env=hvalue(L->top-1);
+break;
+case 7:
+uvalue(o)->env=hvalue(L->top-1);
+break;
+case 8:
+sethvalue(L,gt(thvalue(o)),hvalue(L->top-1));
+break;
+default:
+res=0;
+break;
+}
+if(res)luaC_objbarrier(L,gcvalue(o),hvalue(L->top-1));
+L->top--;
+return res;
+}
+#define adjustresults(L,nres){if(nres==(-1)&&L->top>=L->ci->top)L->ci->top=L->top;}
+#define checkresults(L,na,nr)luai_apicheck(L,(nr)==(-1)||(L->ci->top-L->top>=(nr)-(na)))
+static void lua_call(lua_State*L,int nargs,int nresults){
+StkId func;
+api_checknelems(L,nargs+1);
+checkresults(L,nargs,nresults);
+func=L->top-(nargs+1);
+luaD_call(L,func,nresults);
+adjustresults(L,nresults);
+}
+struct CallS{
+StkId func;
+int nresults;
+};
+static void f_call(lua_State*L,void*ud){
+struct CallS*c=cast(struct CallS*,ud);
+luaD_call(L,c->func,c->nresults);
+}
+static int lua_pcall(lua_State*L,int nargs,int nresults,int errfunc){
+struct CallS c;
+int status;
+ptrdiff_t func;
+api_checknelems(L,nargs+1);
+checkresults(L,nargs,nresults);
+if(errfunc==0)
+func=0;
+else{
+StkId o=index2adr(L,errfunc);
+api_checkvalidindex(L,o);
+func=savestack(L,o);
+}
+c.func=L->top-(nargs+1);
+c.nresults=nresults;
+status=luaD_pcall(L,f_call,&c,savestack(L,c.func),func);
+adjustresults(L,nresults);
+return status;
+}
+static int lua_load(lua_State*L,lua_Reader reader,void*data,
+const char*chunkname){
+ZIO z;
+int status;
+if(!chunkname)chunkname="?";
+luaZ_init(L,&z,reader,data);
+status=luaD_protectedparser(L,&z,chunkname);
+return status;
+}
+static int lua_error(lua_State*L){
+api_checknelems(L,1);
+luaG_errormsg(L);
+return 0;
+}
+static int lua_next(lua_State*L,int idx){
+StkId t;
+int more;
+t=index2adr(L,idx);
+luai_apicheck(L,ttistable(t));
+more=luaH_next(L,hvalue(t),L->top-1);
+if(more){
+api_incr_top(L);
+}
+else
+L->top-=1;
+return more;
+}
+static void lua_concat(lua_State*L,int n){
+api_checknelems(L,n);
+if(n>=2){
+luaC_checkGC(L);
+luaV_concat(L,n,cast_int(L->top-L->base)-1);
+L->top-=(n-1);
+}
+else if(n==0){
+setsvalue(L,L->top,luaS_newlstr(L,"",0));
+api_incr_top(L);
+}
+}
+static void*lua_newuserdata(lua_State*L,size_t size){
+Udata*u;
+luaC_checkGC(L);
+u=luaS_newudata(L,size,getcurrenv(L));
+setuvalue(L,L->top,u);
+api_incr_top(L);
+return u+1;
+}
+#define luaL_getn(L,i)((int)lua_objlen(L,i))
+#define luaL_setn(L,i,j)((void)0)
+typedef struct luaL_Reg{
+const char*name;
+lua_CFunction func;
+}luaL_Reg;
+static void luaI_openlib(lua_State*L,const char*libname,
+const luaL_Reg*l,int nup);
+static int luaL_argerror(lua_State*L,int numarg,const char*extramsg);
+static const char* luaL_checklstring(lua_State*L,int numArg,
+size_t*l);
+static const char* luaL_optlstring(lua_State*L,int numArg,
+const char*def,size_t*l);
+static lua_Integer luaL_checkinteger(lua_State*L,int numArg);
+static lua_Integer luaL_optinteger(lua_State*L,int nArg,
+lua_Integer def);
+static int luaL_error(lua_State*L,const char*fmt,...);
+static const char* luaL_findtable(lua_State*L,int idx,
+const char*fname,int szhint);
+#define luaL_argcheck(L,cond,numarg,extramsg)((void)((cond)||luaL_argerror(L,(numarg),(extramsg))))
+#define luaL_checkstring(L,n)(luaL_checklstring(L,(n),NULL))
+#define luaL_optstring(L,n,d)(luaL_optlstring(L,(n),(d),NULL))
+#define luaL_checkint(L,n)((int)luaL_checkinteger(L,(n)))
+#define luaL_optint(L,n,d)((int)luaL_optinteger(L,(n),(d)))
+#define luaL_typename(L,i)lua_typename(L,lua_type(L,(i)))
+#define luaL_getmetatable(L,n)(lua_getfield(L,(-10000),(n)))
+#define luaL_opt(L,f,n,d)(lua_isnoneornil(L,(n))?(d):f(L,(n)))
+typedef struct luaL_Buffer{
+char*p;
+int lvl;
+lua_State*L;
+char buffer[BUFSIZ];
+}luaL_Buffer;
+#define luaL_addchar(B,c)((void)((B)->p<((B)->buffer+BUFSIZ)||luaL_prepbuffer(B)),(*(B)->p++=(char)(c)))
+#define luaL_addsize(B,n)((B)->p+=(n))
+static char* luaL_prepbuffer(luaL_Buffer*B);
+static int luaL_argerror(lua_State*L,int narg,const char*extramsg){
+lua_Debug ar;
+if(!lua_getstack(L,0,&ar))
+return luaL_error(L,"bad argument #%d (%s)",narg,extramsg);
+lua_getinfo(L,"n",&ar);
+if(strcmp(ar.namewhat,"method")==0){
+narg--;
+if(narg==0)
+return luaL_error(L,"calling "LUA_QL("%s")" on bad self (%s)",
+ar.name,extramsg);
+}
+if(ar.name==NULL)
+ar.name="?";
+return luaL_error(L,"bad argument #%d to "LUA_QL("%s")" (%s)",
+narg,ar.name,extramsg);
+}
+static int luaL_typerror(lua_State*L,int narg,const char*tname){
+const char*msg=lua_pushfstring(L,"%s expected, got %s",
+tname,luaL_typename(L,narg));
+return luaL_argerror(L,narg,msg);
+}
+static void tag_error(lua_State*L,int narg,int tag){
+luaL_typerror(L,narg,lua_typename(L,tag));
+}
+static void luaL_where(lua_State*L,int level){
+lua_Debug ar;
+if(lua_getstack(L,level,&ar)){
+lua_getinfo(L,"Sl",&ar);
+if(ar.currentline>0){
+lua_pushfstring(L,"%s:%d: ",ar.short_src,ar.currentline);
+return;
+}
+}
+lua_pushliteral(L,"");
+}
+static int luaL_error(lua_State*L,const char*fmt,...){
+va_list argp;
+va_start(argp,fmt);
+luaL_where(L,1);
+lua_pushvfstring(L,fmt,argp);
+va_end(argp);
+lua_concat(L,2);
+return lua_error(L);
+}
+static int luaL_newmetatable(lua_State*L,const char*tname){
+lua_getfield(L,(-10000),tname);
+if(!lua_isnil(L,-1))
+return 0;
+lua_pop(L,1);
+lua_newtable(L);
+lua_pushvalue(L,-1);
+lua_setfield(L,(-10000),tname);
+return 1;
+}
+static void*luaL_checkudata(lua_State*L,int ud,const char*tname){
+void*p=lua_touserdata(L,ud);
+if(p!=NULL){
+if(lua_getmetatable(L,ud)){
+lua_getfield(L,(-10000),tname);
+if(lua_rawequal(L,-1,-2)){
+lua_pop(L,2);
+return p;
+}
+}
+}
+luaL_typerror(L,ud,tname);
+return NULL;
+}
+static void luaL_checkstack(lua_State*L,int space,const char*mes){
+if(!lua_checkstack(L,space))
+luaL_error(L,"stack overflow (%s)",mes);
+}
+static void luaL_checktype(lua_State*L,int narg,int t){
+if(lua_type(L,narg)!=t)
+tag_error(L,narg,t);
+}
+static void luaL_checkany(lua_State*L,int narg){
+if(lua_type(L,narg)==(-1))
+luaL_argerror(L,narg,"value expected");
+}
+static const char*luaL_checklstring(lua_State*L,int narg,size_t*len){
+const char*s=lua_tolstring(L,narg,len);
+if(!s)tag_error(L,narg,4);
+return s;
+}
+static const char*luaL_optlstring(lua_State*L,int narg,
+const char*def,size_t*len){
+if(lua_isnoneornil(L,narg)){
+if(len)
+*len=(def?strlen(def):0);
+return def;
+}
+else return luaL_checklstring(L,narg,len);
+}
+static lua_Number luaL_checknumber(lua_State*L,int narg){
+lua_Number d=lua_tonumber(L,narg);
+if(d==0&&!lua_isnumber(L,narg))
+tag_error(L,narg,3);
+return d;
+}
+static lua_Integer luaL_checkinteger(lua_State*L,int narg){
+lua_Integer d=lua_tointeger(L,narg);
+if(d==0&&!lua_isnumber(L,narg))
+tag_error(L,narg,3);
+return d;
+}
+static lua_Integer luaL_optinteger(lua_State*L,int narg,
+lua_Integer def){
+return luaL_opt(L,luaL_checkinteger,narg,def);
+}
+static int luaL_getmetafield(lua_State*L,int obj,const char*event){
+if(!lua_getmetatable(L,obj))
+return 0;
+lua_pushstring(L,event);
+lua_rawget(L,-2);
+if(lua_isnil(L,-1)){
+lua_pop(L,2);
+return 0;
+}
+else{
+lua_remove(L,-2);
+return 1;
+}
+}
+static void luaL_register(lua_State*L,const char*libname,
+const luaL_Reg*l){
+luaI_openlib(L,libname,l,0);
+}
+static int libsize(const luaL_Reg*l){
+int size=0;
+for(;l->name;l++)size++;
+return size;
+}
+static void luaI_openlib(lua_State*L,const char*libname,
+const luaL_Reg*l,int nup){
+if(libname){
+int size=libsize(l);
+luaL_findtable(L,(-10000),"_LOADED",1);
+lua_getfield(L,-1,libname);
+if(!lua_istable(L,-1)){
+lua_pop(L,1);
+if(luaL_findtable(L,(-10002),libname,size)!=NULL)
+luaL_error(L,"name conflict for module "LUA_QL("%s"),libname);
+lua_pushvalue(L,-1);
+lua_setfield(L,-3,libname);
+}
+lua_remove(L,-2);
+lua_insert(L,-(nup+1));
+}
+for(;l->name;l++){
+int i;
+for(i=0;i<nup;i++)
+lua_pushvalue(L,-nup);
+lua_pushcclosure(L,l->func,nup);
+lua_setfield(L,-(nup+2),l->name);
+}
+lua_pop(L,nup);
+}
+static const char*luaL_findtable(lua_State*L,int idx,
+const char*fname,int szhint){
+const char*e;
+lua_pushvalue(L,idx);
+do{
+e=strchr(fname,'.');
+if(e==NULL)e=fname+strlen(fname);
+lua_pushlstring(L,fname,e-fname);
+lua_rawget(L,-2);
+if(lua_isnil(L,-1)){
+lua_pop(L,1);
+lua_createtable(L,0,(*e=='.'?1:szhint));
+lua_pushlstring(L,fname,e-fname);
+lua_pushvalue(L,-2);
+lua_settable(L,-4);
+}
+else if(!lua_istable(L,-1)){
+lua_pop(L,2);
+return fname;
+}
+lua_remove(L,-2);
+fname=e+1;
+}while(*e=='.');
+return NULL;
+}
+#define bufflen(B)((B)->p-(B)->buffer)
+#define bufffree(B)((size_t)(BUFSIZ-bufflen(B)))
+static int emptybuffer(luaL_Buffer*B){
+size_t l=bufflen(B);
+if(l==0)return 0;
+else{
+lua_pushlstring(B->L,B->buffer,l);
+B->p=B->buffer;
+B->lvl++;
+return 1;
+}
+}
+static void adjuststack(luaL_Buffer*B){
+if(B->lvl>1){
+lua_State*L=B->L;
+int toget=1;
+size_t toplen=lua_strlen(L,-1);
+do{
+size_t l=lua_strlen(L,-(toget+1));
+if(B->lvl-toget+1>=(20/2)||toplen>l){
+toplen+=l;
+toget++;
+}
+else break;
+}while(toget<B->lvl);
+lua_concat(L,toget);
+B->lvl=B->lvl-toget+1;
+}
+}
+static char*luaL_prepbuffer(luaL_Buffer*B){
+if(emptybuffer(B))
+adjuststack(B);
+return B->buffer;
+}
+static void luaL_addlstring(luaL_Buffer*B,const char*s,size_t l){
+while(l--)
+luaL_addchar(B,*s++);
+}
+static void luaL_pushresult(luaL_Buffer*B){
+emptybuffer(B);
+lua_concat(B->L,B->lvl);
+B->lvl=1;
+}
+static void luaL_addvalue(luaL_Buffer*B){
+lua_State*L=B->L;
+size_t vl;
+const char*s=lua_tolstring(L,-1,&vl);
+if(vl<=bufffree(B)){
+memcpy(B->p,s,vl);
+B->p+=vl;
+lua_pop(L,1);
+}
+else{
+if(emptybuffer(B))
+lua_insert(L,-2);
+B->lvl++;
+adjuststack(B);
+}
+}
+static void luaL_buffinit(lua_State*L,luaL_Buffer*B){
+B->L=L;
+B->p=B->buffer;
+B->lvl=0;
+}
+typedef struct LoadF{
+int extraline;
+FILE*f;
+char buff[BUFSIZ];
+}LoadF;
+static const char*getF(lua_State*L,void*ud,size_t*size){
+LoadF*lf=(LoadF*)ud;
+(void)L;
+if(lf->extraline){
+lf->extraline=0;
+*size=1;
+return"\n";
+}
+if(feof(lf->f))return NULL;
+*size=fread(lf->buff,1,sizeof(lf->buff),lf->f);
+return(*size>0)?lf->buff:NULL;
+}
+static int errfile(lua_State*L,const char*what,int fnameindex){
+const char*serr=strerror(errno);
+const char*filename=lua_tostring(L,fnameindex)+1;
+lua_pushfstring(L,"cannot %s %s: %s",what,filename,serr);
+lua_remove(L,fnameindex);
+return(5+1);
+}
+static int luaL_loadfile(lua_State*L,const char*filename){
+LoadF lf;
+int status,readstatus;
+int c;
+int fnameindex=lua_gettop(L)+1;
+lf.extraline=0;
+if(filename==NULL){
+lua_pushliteral(L,"=stdin");
+lf.f=stdin;
+}
+else{
+lua_pushfstring(L,"@%s",filename);
+lf.f=fopen(filename,"r");
+if(lf.f==NULL)return errfile(L,"open",fnameindex);
+}
+c=getc(lf.f);
+if(c=='#'){
+lf.extraline=1;
+while((c=getc(lf.f))!=EOF&&c!='\n');
+if(c=='\n')c=getc(lf.f);
+}
+if(c=="\033Lua"[0]&&filename){
+lf.f=freopen(filename,"rb",lf.f);
+if(lf.f==NULL)return errfile(L,"reopen",fnameindex);
+while((c=getc(lf.f))!=EOF&&c!="\033Lua"[0]);
+lf.extraline=0;
+}
+ungetc(c,lf.f);
+status=lua_load(L,getF,&lf,lua_tostring(L,-1));
+readstatus=ferror(lf.f);
+if(filename)fclose(lf.f);
+if(readstatus){
+lua_settop(L,fnameindex);
+return errfile(L,"read",fnameindex);
+}
+lua_remove(L,fnameindex);
+return status;
+}
+typedef struct LoadS{
+const char*s;
+size_t size;
+}LoadS;
+static const char*getS(lua_State*L,void*ud,size_t*size){
+LoadS*ls=(LoadS*)ud;
+(void)L;
+if(ls->size==0)return NULL;
+*size=ls->size;
+ls->size=0;
+return ls->s;
+}
+static int luaL_loadbuffer(lua_State*L,const char*buff,size_t size,
+const char*name){
+LoadS ls;
+ls.s=buff;
+ls.size=size;
+return lua_load(L,getS,&ls,name);
+}
+static void*l_alloc(void*ud,void*ptr,size_t osize,size_t nsize){
+(void)ud;
+(void)osize;
+if(nsize==0){
+free(ptr);
+return NULL;
+}
+else
+return realloc(ptr,nsize);
+}
+static int panic(lua_State*L){
+(void)L;
+fprintf(stderr,"PANIC: unprotected error in call to Lua API (%s)\n",
+lua_tostring(L,-1));
+return 0;
+}
+static lua_State*luaL_newstate(void){
+lua_State*L=lua_newstate(l_alloc,NULL);
+if(L)lua_atpanic(L,&panic);
+return L;
+}
+static int luaB_tonumber(lua_State*L){
+int base=luaL_optint(L,2,10);
+if(base==10){
+luaL_checkany(L,1);
+if(lua_isnumber(L,1)){
+lua_pushnumber(L,lua_tonumber(L,1));
+return 1;
+}
+}
+else{
+const char*s1=luaL_checkstring(L,1);
+char*s2;
+unsigned long n;
+luaL_argcheck(L,2<=base&&base<=36,2,"base out of range");
+n=strtoul(s1,&s2,base);
+if(s1!=s2){
+while(isspace((unsigned char)(*s2)))s2++;
+if(*s2=='\0'){
+lua_pushnumber(L,(lua_Number)n);
+return 1;
+}
+}
+}
+lua_pushnil(L);
+return 1;
+}
+static int luaB_error(lua_State*L){
+int level=luaL_optint(L,2,1);
+lua_settop(L,1);
+if(lua_isstring(L,1)&&level>0){
+luaL_where(L,level);
+lua_pushvalue(L,1);
+lua_concat(L,2);
+}
+return lua_error(L);
+}
+static int luaB_setmetatable(lua_State*L){
+int t=lua_type(L,2);
+luaL_checktype(L,1,5);
+luaL_argcheck(L,t==0||t==5,2,
+"nil or table expected");
+if(luaL_getmetafield(L,1,"__metatable"))
+luaL_error(L,"cannot change a protected metatable");
+lua_settop(L,2);
+lua_setmetatable(L,1);
+return 1;
+}
+static void getfunc(lua_State*L,int opt){
+if(lua_isfunction(L,1))lua_pushvalue(L,1);
+else{
+lua_Debug ar;
+int level=opt?luaL_optint(L,1,1):luaL_checkint(L,1);
+luaL_argcheck(L,level>=0,1,"level must be non-negative");
+if(lua_getstack(L,level,&ar)==0)
+luaL_argerror(L,1,"invalid level");
+lua_getinfo(L,"f",&ar);
+if(lua_isnil(L,-1))
+luaL_error(L,"no function environment for tail call at level %d",
+level);
+}
+}
+static int luaB_setfenv(lua_State*L){
+luaL_checktype(L,2,5);
+getfunc(L,0);
+lua_pushvalue(L,2);
+if(lua_isnumber(L,1)&&lua_tonumber(L,1)==0){
+lua_pushthread(L);
+lua_insert(L,-2);
+lua_setfenv(L,-2);
+return 0;
+}
+else if(lua_iscfunction(L,-2)||lua_setfenv(L,-2)==0)
+luaL_error(L,
+LUA_QL("setfenv")" cannot change environment of given object");
+return 1;
+}
+static int luaB_rawget(lua_State*L){
+luaL_checktype(L,1,5);
+luaL_checkany(L,2);
+lua_settop(L,2);
+lua_rawget(L,1);
+return 1;
+}
+static int luaB_type(lua_State*L){
+luaL_checkany(L,1);
+lua_pushstring(L,luaL_typename(L,1));
+return 1;
+}
+static int luaB_next(lua_State*L){
+luaL_checktype(L,1,5);
+lua_settop(L,2);
+if(lua_next(L,1))
+return 2;
+else{
+lua_pushnil(L);
+return 1;
+}
+}
+static int luaB_pairs(lua_State*L){
+luaL_checktype(L,1,5);
+lua_pushvalue(L,lua_upvalueindex(1));
+lua_pushvalue(L,1);
+lua_pushnil(L);
+return 3;
+}
+static int ipairsaux(lua_State*L){
+int i=luaL_checkint(L,2);
+luaL_checktype(L,1,5);
+i++;
+lua_pushinteger(L,i);
+lua_rawgeti(L,1,i);
+return(lua_isnil(L,-1))?0:2;
+}
+static int luaB_ipairs(lua_State*L){
+luaL_checktype(L,1,5);
+lua_pushvalue(L,lua_upvalueindex(1));
+lua_pushvalue(L,1);
+lua_pushinteger(L,0);
+return 3;
+}
+static int load_aux(lua_State*L,int status){
+if(status==0)
+return 1;
+else{
+lua_pushnil(L);
+lua_insert(L,-2);
+return 2;
+}
+}
+static int luaB_loadstring(lua_State*L){
+size_t l;
+const char*s=luaL_checklstring(L,1,&l);
+const char*chunkname=luaL_optstring(L,2,s);
+return load_aux(L,luaL_loadbuffer(L,s,l,chunkname));
+}
+static int luaB_loadfile(lua_State*L){
+const char*fname=luaL_optstring(L,1,NULL);
+return load_aux(L,luaL_loadfile(L,fname));
+}
+static int luaB_assert(lua_State*L){
+luaL_checkany(L,1);
+if(!lua_toboolean(L,1))
+return luaL_error(L,"%s",luaL_optstring(L,2,"assertion failed!"));
+return lua_gettop(L);
+}
+static int luaB_unpack(lua_State*L){
+int i,e,n;
+luaL_checktype(L,1,5);
+i=luaL_optint(L,2,1);
+e=luaL_opt(L,luaL_checkint,3,luaL_getn(L,1));
+if(i>e)return 0;
+n=e-i+1;
+if(n<=0||!lua_checkstack(L,n))
+return luaL_error(L,"too many results to unpack");
+lua_rawgeti(L,1,i);
+while(i++<e)
+lua_rawgeti(L,1,i);
+return n;
+}
+static int luaB_pcall(lua_State*L){
+int status;
+luaL_checkany(L,1);
+status=lua_pcall(L,lua_gettop(L)-1,(-1),0);
+lua_pushboolean(L,(status==0));
+lua_insert(L,1);
+return lua_gettop(L);
+}
+static int luaB_newproxy(lua_State*L){
+lua_settop(L,1);
+lua_newuserdata(L,0);
+if(lua_toboolean(L,1)==0)
+return 1;
+else if(lua_isboolean(L,1)){
+lua_newtable(L);
+lua_pushvalue(L,-1);
+lua_pushboolean(L,1);
+lua_rawset(L,lua_upvalueindex(1));
+}
+else{
+int validproxy=0;
+if(lua_getmetatable(L,1)){
+lua_rawget(L,lua_upvalueindex(1));
+validproxy=lua_toboolean(L,-1);
+lua_pop(L,1);
+}
+luaL_argcheck(L,validproxy,1,"boolean or proxy expected");
+lua_getmetatable(L,1);
+}
+lua_setmetatable(L,2);
+return 1;
+}
+static const luaL_Reg base_funcs[]={
+{"assert",luaB_assert},
+{"error",luaB_error},
+{"loadfile",luaB_loadfile},
+{"loadstring",luaB_loadstring},
+{"next",luaB_next},
+{"pcall",luaB_pcall},
+{"rawget",luaB_rawget},
+{"setfenv",luaB_setfenv},
+{"setmetatable",luaB_setmetatable},
+{"tonumber",luaB_tonumber},
+{"type",luaB_type},
+{"unpack",luaB_unpack},
+{NULL,NULL}
+};
+static void auxopen(lua_State*L,const char*name,
+lua_CFunction f,lua_CFunction u){
+lua_pushcfunction(L,u);
+lua_pushcclosure(L,f,1);
+lua_setfield(L,-2,name);
+}
+static void base_open(lua_State*L){
+lua_pushvalue(L,(-10002));
+lua_setglobal(L,"_G");
+luaL_register(L,"_G",base_funcs);
+lua_pushliteral(L,"Lua 5.1");
+lua_setglobal(L,"_VERSION");
+auxopen(L,"ipairs",luaB_ipairs,ipairsaux);
+auxopen(L,"pairs",luaB_pairs,luaB_next);
+lua_createtable(L,0,1);
+lua_pushvalue(L,-1);
+lua_setmetatable(L,-2);
+lua_pushliteral(L,"kv");
+lua_setfield(L,-2,"__mode");
+lua_pushcclosure(L,luaB_newproxy,1);
+lua_setglobal(L,"newproxy");
+}
+static int luaopen_base(lua_State*L){
+base_open(L);
+return 1;
+}
+#define aux_getn(L,n)(luaL_checktype(L,n,5),luaL_getn(L,n))
+static int tinsert(lua_State*L){
+int e=aux_getn(L,1)+1;
+int pos;
+switch(lua_gettop(L)){
+case 2:{
+pos=e;
+break;
+}
+case 3:{
+int i;
+pos=luaL_checkint(L,2);
+if(pos>e)e=pos;
+for(i=e;i>pos;i--){
+lua_rawgeti(L,1,i-1);
+lua_rawseti(L,1,i);
+}
+break;
+}
+default:{
+return luaL_error(L,"wrong number of arguments to "LUA_QL("insert"));
+}
+}
+luaL_setn(L,1,e);
+lua_rawseti(L,1,pos);
+return 0;
+}
+static int tremove(lua_State*L){
+int e=aux_getn(L,1);
+int pos=luaL_optint(L,2,e);
+if(!(1<=pos&&pos<=e))
+return 0;
+luaL_setn(L,1,e-1);
+lua_rawgeti(L,1,pos);
+for(;pos<e;pos++){
+lua_rawgeti(L,1,pos+1);
+lua_rawseti(L,1,pos);
+}
+lua_pushnil(L);
+lua_rawseti(L,1,e);
+return 1;
+}
+static void addfield(lua_State*L,luaL_Buffer*b,int i){
+lua_rawgeti(L,1,i);
+if(!lua_isstring(L,-1))
+luaL_error(L,"invalid value (%s) at index %d in table for "
+LUA_QL("concat"),luaL_typename(L,-1),i);
+luaL_addvalue(b);
+}
+static int tconcat(lua_State*L){
+luaL_Buffer b;
+size_t lsep;
+int i,last;
+const char*sep=luaL_optlstring(L,2,"",&lsep);
+luaL_checktype(L,1,5);
+i=luaL_optint(L,3,1);
+last=luaL_opt(L,luaL_checkint,4,luaL_getn(L,1));
+luaL_buffinit(L,&b);
+for(;i<last;i++){
+addfield(L,&b,i);
+luaL_addlstring(&b,sep,lsep);
+}
+if(i==last)
+addfield(L,&b,i);
+luaL_pushresult(&b);
+return 1;
+}
+static void set2(lua_State*L,int i,int j){
+lua_rawseti(L,1,i);
+lua_rawseti(L,1,j);
+}
+static int sort_comp(lua_State*L,int a,int b){
+if(!lua_isnil(L,2)){
+int res;
+lua_pushvalue(L,2);
+lua_pushvalue(L,a-1);
+lua_pushvalue(L,b-2);
+lua_call(L,2,1);
+res=lua_toboolean(L,-1);
+lua_pop(L,1);
+return res;
+}
+else
+return lua_lessthan(L,a,b);
+}
+static void auxsort(lua_State*L,int l,int u){
+while(l<u){
+int i,j;
+lua_rawgeti(L,1,l);
+lua_rawgeti(L,1,u);
+if(sort_comp(L,-1,-2))
+set2(L,l,u);
+else
+lua_pop(L,2);
+if(u-l==1)break;
+i=(l+u)/2;
+lua_rawgeti(L,1,i);
+lua_rawgeti(L,1,l);
+if(sort_comp(L,-2,-1))
+set2(L,i,l);
+else{
+lua_pop(L,1);
+lua_rawgeti(L,1,u);
+if(sort_comp(L,-1,-2))
+set2(L,i,u);
+else
+lua_pop(L,2);
+}
+if(u-l==2)break;
+lua_rawgeti(L,1,i);
+lua_pushvalue(L,-1);
+lua_rawgeti(L,1,u-1);
+set2(L,i,u-1);
+i=l;j=u-1;
+for(;;){
+while(lua_rawgeti(L,1,++i),sort_comp(L,-1,-2)){
+if(i>u)luaL_error(L,"invalid order function for sorting");
+lua_pop(L,1);
+}
+while(lua_rawgeti(L,1,--j),sort_comp(L,-3,-1)){
+if(j<l)luaL_error(L,"invalid order function for sorting");
+lua_pop(L,1);
+}
+if(j<i){
+lua_pop(L,3);
+break;
+}
+set2(L,i,j);
+}
+lua_rawgeti(L,1,u-1);
+lua_rawgeti(L,1,i);
+set2(L,u-1,i);
+if(i-l<u-i){
+j=l;i=i-1;l=i+2;
+}
+else{
+j=i+1;i=u;u=j-2;
+}
+auxsort(L,j,i);
+}
+}
+static int sort(lua_State*L){
+int n=aux_getn(L,1);
+luaL_checkstack(L,40,"");
+if(!lua_isnoneornil(L,2))
+luaL_checktype(L,2,6);
+lua_settop(L,2);
+auxsort(L,1,n);
+return 0;
+}
+static const luaL_Reg tab_funcs[]={
+{"concat",tconcat},
+{"insert",tinsert},
+{"remove",tremove},
+{"sort",sort},
+{NULL,NULL}
+};
+static int luaopen_table(lua_State*L){
+luaL_register(L,"table",tab_funcs);
+return 1;
+}
+static const char*const fnames[]={"input","output"};
+static int pushresult(lua_State*L,int i,const char*filename){
+int en=errno;
+if(i){
+lua_pushboolean(L,1);
+return 1;
+}
+else{
+lua_pushnil(L);
+if(filename)
+lua_pushfstring(L,"%s: %s",filename,strerror(en));
+else
+lua_pushfstring(L,"%s",strerror(en));
+lua_pushinteger(L,en);
+return 3;
+}
+}
+static void fileerror(lua_State*L,int arg,const char*filename){
+lua_pushfstring(L,"%s: %s",filename,strerror(errno));
+luaL_argerror(L,arg,lua_tostring(L,-1));
+}
+#define tofilep(L)((FILE**)luaL_checkudata(L,1,"FILE*"))
+static int io_type(lua_State*L){
+void*ud;
+luaL_checkany(L,1);
+ud=lua_touserdata(L,1);
+lua_getfield(L,(-10000),"FILE*");
+if(ud==NULL||!lua_getmetatable(L,1)||!lua_rawequal(L,-2,-1))
+lua_pushnil(L);
+else if(*((FILE**)ud)==NULL)
+lua_pushliteral(L,"closed file");
+else
+lua_pushliteral(L,"file");
+return 1;
+}
+static FILE*tofile(lua_State*L){
+FILE**f=tofilep(L);
+if(*f==NULL)
+luaL_error(L,"attempt to use a closed file");
+return*f;
+}
+static FILE**newfile(lua_State*L){
+FILE**pf=(FILE**)lua_newuserdata(L,sizeof(FILE*));
+*pf=NULL;
+luaL_getmetatable(L,"FILE*");
+lua_setmetatable(L,-2);
+return pf;
+}
+static int io_noclose(lua_State*L){
+lua_pushnil(L);
+lua_pushliteral(L,"cannot close standard file");
+return 2;
+}
+static int io_pclose(lua_State*L){
+FILE**p=tofilep(L);
+int ok=lua_pclose(L,*p);
+*p=NULL;
+return pushresult(L,ok,NULL);
+}
+static int io_fclose(lua_State*L){
+FILE**p=tofilep(L);
+int ok=(fclose(*p)==0);
+*p=NULL;
+return pushresult(L,ok,NULL);
+}
+static int aux_close(lua_State*L){
+lua_getfenv(L,1);
+lua_getfield(L,-1,"__close");
+return(lua_tocfunction(L,-1))(L);
+}
+static int io_close(lua_State*L){
+if(lua_isnone(L,1))
+lua_rawgeti(L,(-10001),2);
+tofile(L);
+return aux_close(L);
+}
+static int io_gc(lua_State*L){
+FILE*f=*tofilep(L);
+if(f!=NULL)
+aux_close(L);
+return 0;
+}
+static int io_open(lua_State*L){
+const char*filename=luaL_checkstring(L,1);
+const char*mode=luaL_optstring(L,2,"r");
+FILE**pf=newfile(L);
+*pf=fopen(filename,mode);
+return(*pf==NULL)?pushresult(L,0,filename):1;
+}
+static FILE*getiofile(lua_State*L,int findex){
+FILE*f;
+lua_rawgeti(L,(-10001),findex);
+f=*(FILE**)lua_touserdata(L,-1);
+if(f==NULL)
+luaL_error(L,"standard %s file is closed",fnames[findex-1]);
+return f;
+}
+static int g_iofile(lua_State*L,int f,const char*mode){
+if(!lua_isnoneornil(L,1)){
+const char*filename=lua_tostring(L,1);
+if(filename){
+FILE**pf=newfile(L);
+*pf=fopen(filename,mode);
+if(*pf==NULL)
+fileerror(L,1,filename);
+}
+else{
+tofile(L);
+lua_pushvalue(L,1);
+}
+lua_rawseti(L,(-10001),f);
+}
+lua_rawgeti(L,(-10001),f);
+return 1;
+}
+static int io_input(lua_State*L){
+return g_iofile(L,1,"r");
+}
+static int io_output(lua_State*L){
+return g_iofile(L,2,"w");
+}
+static int io_readline(lua_State*L);
+static void aux_lines(lua_State*L,int idx,int toclose){
+lua_pushvalue(L,idx);
+lua_pushboolean(L,toclose);
+lua_pushcclosure(L,io_readline,2);
+}
+static int f_lines(lua_State*L){
+tofile(L);
+aux_lines(L,1,0);
+return 1;
+}
+static int io_lines(lua_State*L){
+if(lua_isnoneornil(L,1)){
+lua_rawgeti(L,(-10001),1);
+return f_lines(L);
+}
+else{
+const char*filename=luaL_checkstring(L,1);
+FILE**pf=newfile(L);
+*pf=fopen(filename,"r");
+if(*pf==NULL)
+fileerror(L,1,filename);
+aux_lines(L,lua_gettop(L),1);
+return 1;
+}
+}
+static int read_number(lua_State*L,FILE*f){
+lua_Number d;
+if(fscanf(f,"%lf",&d)==1){
+lua_pushnumber(L,d);
+return 1;
+}
+else{
+lua_pushnil(L);
+return 0;
+}
+}
+static int test_eof(lua_State*L,FILE*f){
+int c=getc(f);
+ungetc(c,f);
+lua_pushlstring(L,NULL,0);
+return(c!=EOF);
+}
+static int read_line(lua_State*L,FILE*f){
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+for(;;){
+size_t l;
+char*p=luaL_prepbuffer(&b);
+if(fgets(p,BUFSIZ,f)==NULL){
+luaL_pushresult(&b);
+return(lua_objlen(L,-1)>0);
+}
+l=strlen(p);
+if(l==0||p[l-1]!='\n')
+luaL_addsize(&b,l);
+else{
+luaL_addsize(&b,l-1);
+luaL_pushresult(&b);
+return 1;
+}
+}
+}
+static int read_chars(lua_State*L,FILE*f,size_t n){
+size_t rlen;
+size_t nr;
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+rlen=BUFSIZ;
+do{
+char*p=luaL_prepbuffer(&b);
+if(rlen>n)rlen=n;
+nr=fread(p,sizeof(char),rlen,f);
+luaL_addsize(&b,nr);
+n-=nr;
+}while(n>0&&nr==rlen);
+luaL_pushresult(&b);
+return(n==0||lua_objlen(L,-1)>0);
+}
+static int g_read(lua_State*L,FILE*f,int first){
+int nargs=lua_gettop(L)-1;
+int success;
+int n;
+clearerr(f);
+if(nargs==0){
+success=read_line(L,f);
+n=first+1;
+}
+else{
+luaL_checkstack(L,nargs+20,"too many arguments");
+success=1;
+for(n=first;nargs--&&success;n++){
+if(lua_type(L,n)==3){
+size_t l=(size_t)lua_tointeger(L,n);
+success=(l==0)?test_eof(L,f):read_chars(L,f,l);
+}
+else{
+const char*p=lua_tostring(L,n);
+luaL_argcheck(L,p&&p[0]=='*',n,"invalid option");
+switch(p[1]){
+case'n':
+success=read_number(L,f);
+break;
+case'l':
+success=read_line(L,f);
+break;
+case'a':
+read_chars(L,f,~((size_t)0));
+success=1;
+break;
+default:
+return luaL_argerror(L,n,"invalid format");
+}
+}
+}
+}
+if(ferror(f))
+return pushresult(L,0,NULL);
+if(!success){
+lua_pop(L,1);
+lua_pushnil(L);
+}
+return n-first;
+}
+static int io_read(lua_State*L){
+return g_read(L,getiofile(L,1),1);
+}
+static int f_read(lua_State*L){
+return g_read(L,tofile(L),2);
+}
+static int io_readline(lua_State*L){
+FILE*f=*(FILE**)lua_touserdata(L,lua_upvalueindex(1));
+int sucess;
+if(f==NULL)
+luaL_error(L,"file is already closed");
+sucess=read_line(L,f);
+if(ferror(f))
+return luaL_error(L,"%s",strerror(errno));
+if(sucess)return 1;
+else{
+if(lua_toboolean(L,lua_upvalueindex(2))){
+lua_settop(L,0);
+lua_pushvalue(L,lua_upvalueindex(1));
+aux_close(L);
+}
+return 0;
+}
+}
+static int g_write(lua_State*L,FILE*f,int arg){
+int nargs=lua_gettop(L)-1;
+int status=1;
+for(;nargs--;arg++){
+if(lua_type(L,arg)==3){
+status=status&&
+fprintf(f,"%.14g",lua_tonumber(L,arg))>0;
+}
+else{
+size_t l;
+const char*s=luaL_checklstring(L,arg,&l);
+status=status&&(fwrite(s,sizeof(char),l,f)==l);
+}
+}
+return pushresult(L,status,NULL);
+}
+static int io_write(lua_State*L){
+return g_write(L,getiofile(L,2),1);
+}
+static int f_write(lua_State*L){
+return g_write(L,tofile(L),2);
+}
+static int io_flush(lua_State*L){
+return pushresult(L,fflush(getiofile(L,2))==0,NULL);
+}
+static int f_flush(lua_State*L){
+return pushresult(L,fflush(tofile(L))==0,NULL);
+}
+static const luaL_Reg iolib[]={
+{"close",io_close},
+{"flush",io_flush},
+{"input",io_input},
+{"lines",io_lines},
+{"open",io_open},
+{"output",io_output},
+{"read",io_read},
+{"type",io_type},
+{"write",io_write},
+{NULL,NULL}
+};
+static const luaL_Reg flib[]={
+{"close",io_close},
+{"flush",f_flush},
+{"lines",f_lines},
+{"read",f_read},
+{"write",f_write},
+{"__gc",io_gc},
+{NULL,NULL}
+};
+static void createmeta(lua_State*L){
+luaL_newmetatable(L,"FILE*");
+lua_pushvalue(L,-1);
+lua_setfield(L,-2,"__index");
+luaL_register(L,NULL,flib);
+}
+static void createstdfile(lua_State*L,FILE*f,int k,const char*fname){
+*newfile(L)=f;
+if(k>0){
+lua_pushvalue(L,-1);
+lua_rawseti(L,(-10001),k);
+}
+lua_pushvalue(L,-2);
+lua_setfenv(L,-2);
+lua_setfield(L,-3,fname);
+}
+static void newfenv(lua_State*L,lua_CFunction cls){
+lua_createtable(L,0,1);
+lua_pushcfunction(L,cls);
+lua_setfield(L,-2,"__close");
+}
+static int luaopen_io(lua_State*L){
+createmeta(L);
+newfenv(L,io_fclose);
+lua_replace(L,(-10001));
+luaL_register(L,"io",iolib);
+newfenv(L,io_noclose);
+createstdfile(L,stdin,1,"stdin");
+createstdfile(L,stdout,2,"stdout");
+createstdfile(L,stderr,0,"stderr");
+lua_pop(L,1);
+lua_getfield(L,-1,"popen");
+newfenv(L,io_pclose);
+lua_setfenv(L,-2);
+lua_pop(L,1);
+return 1;
+}
+static int os_pushresult(lua_State*L,int i,const char*filename){
+int en=errno;
+if(i){
+lua_pushboolean(L,1);
+return 1;
+}
+else{
+lua_pushnil(L);
+lua_pushfstring(L,"%s: %s",filename,strerror(en));
+lua_pushinteger(L,en);
+return 3;
+}
+}
+static int os_remove(lua_State*L){
+const char*filename=luaL_checkstring(L,1);
+return os_pushresult(L,remove(filename)==0,filename);
+}
+static int os_exit(lua_State*L){
+exit(luaL_optint(L,1,EXIT_SUCCESS));
+}
+static const luaL_Reg syslib[]={
+{"exit",os_exit},
+{"remove",os_remove},
+{NULL,NULL}
+};
+static int luaopen_os(lua_State*L){
+luaL_register(L,"os",syslib);
+return 1;
+}
+#define uchar(c)((unsigned char)(c))
+static ptrdiff_t posrelat(ptrdiff_t pos,size_t len){
+if(pos<0)pos+=(ptrdiff_t)len+1;
+return(pos>=0)?pos:0;
+}
+static int str_sub(lua_State*L){
+size_t l;
+const char*s=luaL_checklstring(L,1,&l);
+ptrdiff_t start=posrelat(luaL_checkinteger(L,2),l);
+ptrdiff_t end=posrelat(luaL_optinteger(L,3,-1),l);
+if(start<1)start=1;
+if(end>(ptrdiff_t)l)end=(ptrdiff_t)l;
+if(start<=end)
+lua_pushlstring(L,s+start-1,end-start+1);
+else lua_pushliteral(L,"");
+return 1;
+}
+static int str_lower(lua_State*L){
+size_t l;
+size_t i;
+luaL_Buffer b;
+const char*s=luaL_checklstring(L,1,&l);
+luaL_buffinit(L,&b);
+for(i=0;i<l;i++)
+luaL_addchar(&b,tolower(uchar(s[i])));
+luaL_pushresult(&b);
+return 1;
+}
+static int str_upper(lua_State*L){
+size_t l;
+size_t i;
+luaL_Buffer b;
+const char*s=luaL_checklstring(L,1,&l);
+luaL_buffinit(L,&b);
+for(i=0;i<l;i++)
+luaL_addchar(&b,toupper(uchar(s[i])));
+luaL_pushresult(&b);
+return 1;
+}
+static int str_rep(lua_State*L){
+size_t l;
+luaL_Buffer b;
+const char*s=luaL_checklstring(L,1,&l);
+int n=luaL_checkint(L,2);
+luaL_buffinit(L,&b);
+while(n-->0)
+luaL_addlstring(&b,s,l);
+luaL_pushresult(&b);
+return 1;
+}
+static int str_byte(lua_State*L){
+size_t l;
+const char*s=luaL_checklstring(L,1,&l);
+ptrdiff_t posi=posrelat(luaL_optinteger(L,2,1),l);
+ptrdiff_t pose=posrelat(luaL_optinteger(L,3,posi),l);
+int n,i;
+if(posi<=0)posi=1;
+if((size_t)pose>l)pose=l;
+if(posi>pose)return 0;
+n=(int)(pose-posi+1);
+if(posi+n<=pose)
+luaL_error(L,"string slice too long");
+luaL_checkstack(L,n,"string slice too long");
+for(i=0;i<n;i++)
+lua_pushinteger(L,uchar(s[posi+i-1]));
+return n;
+}
+static int str_char(lua_State*L){
+int n=lua_gettop(L);
+int i;
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+for(i=1;i<=n;i++){
+int c=luaL_checkint(L,i);
+luaL_argcheck(L,uchar(c)==c,i,"invalid value");
+luaL_addchar(&b,uchar(c));
+}
+luaL_pushresult(&b);
+return 1;
+}
+typedef struct MatchState{
+const char*src_init;
+const char*src_end;
+lua_State*L;
+int level;
+struct{
+const char*init;
+ptrdiff_t len;
+}capture[32];
+}MatchState;
+static int check_capture(MatchState*ms,int l){
+l-='1';
+if(l<0||l>=ms->level||ms->capture[l].len==(-1))
+return luaL_error(ms->L,"invalid capture index");
+return l;
+}
+static int capture_to_close(MatchState*ms){
+int level=ms->level;
+for(level--;level>=0;level--)
+if(ms->capture[level].len==(-1))return level;
+return luaL_error(ms->L,"invalid pattern capture");
+}
+static const char*classend(MatchState*ms,const char*p){
+switch(*p++){
+case'%':{
+if(*p=='\0')
+luaL_error(ms->L,"malformed pattern (ends with "LUA_QL("%%")")");
+return p+1;
+}
+case'[':{
+if(*p=='^')p++;
+do{
+if(*p=='\0')
+luaL_error(ms->L,"malformed pattern (missing "LUA_QL("]")")");
+if(*(p++)=='%'&&*p!='\0')
+p++;
+}while(*p!=']');
+return p+1;
+}
+default:{
+return p;
+}
+}
+}
+static int match_class(int c,int cl){
+int res;
+switch(tolower(cl)){
+case'a':res=isalpha(c);break;
+case'c':res=iscntrl(c);break;
+case'd':res=isdigit(c);break;
+case'l':res=islower(c);break;
+case'p':res=ispunct(c);break;
+case's':res=isspace(c);break;
+case'u':res=isupper(c);break;
+case'w':res=isalnum(c);break;
+case'x':res=isxdigit(c);break;
+case'z':res=(c==0);break;
+default:return(cl==c);
+}
+return(islower(cl)?res:!res);
+}
+static int matchbracketclass(int c,const char*p,const char*ec){
+int sig=1;
+if(*(p+1)=='^'){
+sig=0;
+p++;
+}
+while(++p<ec){
+if(*p=='%'){
+p++;
+if(match_class(c,uchar(*p)))
+return sig;
+}
+else if((*(p+1)=='-')&&(p+2<ec)){
+p+=2;
+if(uchar(*(p-2))<=c&&c<=uchar(*p))
+return sig;
+}
+else if(uchar(*p)==c)return sig;
+}
+return!sig;
+}
+static int singlematch(int c,const char*p,const char*ep){
+switch(*p){
+case'.':return 1;
+case'%':return match_class(c,uchar(*(p+1)));
+case'[':return matchbracketclass(c,p,ep-1);
+default:return(uchar(*p)==c);
+}
+}
+static const char*match(MatchState*ms,const char*s,const char*p);
+static const char*matchbalance(MatchState*ms,const char*s,
+const char*p){
+if(*p==0||*(p+1)==0)
+luaL_error(ms->L,"unbalanced pattern");
+if(*s!=*p)return NULL;
+else{
+int b=*p;
+int e=*(p+1);
+int cont=1;
+while(++s<ms->src_end){
+if(*s==e){
+if(--cont==0)return s+1;
+}
+else if(*s==b)cont++;
+}
+}
+return NULL;
+}
+static const char*max_expand(MatchState*ms,const char*s,
+const char*p,const char*ep){
+ptrdiff_t i=0;
+while((s+i)<ms->src_end&&singlematch(uchar(*(s+i)),p,ep))
+i++;
+while(i>=0){
+const char*res=match(ms,(s+i),ep+1);
+if(res)return res;
+i--;
+}
+return NULL;
+}
+static const char*min_expand(MatchState*ms,const char*s,
+const char*p,const char*ep){
+for(;;){
+const char*res=match(ms,s,ep+1);
+if(res!=NULL)
+return res;
+else if(s<ms->src_end&&singlematch(uchar(*s),p,ep))
+s++;
+else return NULL;
+}
+}
+static const char*start_capture(MatchState*ms,const char*s,
+const char*p,int what){
+const char*res;
+int level=ms->level;
+if(level>=32)luaL_error(ms->L,"too many captures");
+ms->capture[level].init=s;
+ms->capture[level].len=what;
+ms->level=level+1;
+if((res=match(ms,s,p))==NULL)
+ms->level--;
+return res;
+}
+static const char*end_capture(MatchState*ms,const char*s,
+const char*p){
+int l=capture_to_close(ms);
+const char*res;
+ms->capture[l].len=s-ms->capture[l].init;
+if((res=match(ms,s,p))==NULL)
+ms->capture[l].len=(-1);
+return res;
+}
+static const char*match_capture(MatchState*ms,const char*s,int l){
+size_t len;
+l=check_capture(ms,l);
+len=ms->capture[l].len;
+if((size_t)(ms->src_end-s)>=len&&
+memcmp(ms->capture[l].init,s,len)==0)
+return s+len;
+else return NULL;
+}
+static const char*match(MatchState*ms,const char*s,const char*p){
+init:
+switch(*p){
+case'(':{
+if(*(p+1)==')')
+return start_capture(ms,s,p+2,(-2));
+else
+return start_capture(ms,s,p+1,(-1));
+}
+case')':{
+return end_capture(ms,s,p+1);
+}
+case'%':{
+switch(*(p+1)){
+case'b':{
+s=matchbalance(ms,s,p+2);
+if(s==NULL)return NULL;
+p+=4;goto init;
+}
+case'f':{
+const char*ep;char previous;
+p+=2;
+if(*p!='[')
+luaL_error(ms->L,"missing "LUA_QL("[")" after "
+LUA_QL("%%f")" in pattern");
+ep=classend(ms,p);
+previous=(s==ms->src_init)?'\0':*(s-1);
+if(matchbracketclass(uchar(previous),p,ep-1)||
+!matchbracketclass(uchar(*s),p,ep-1))return NULL;
+p=ep;goto init;
+}
+default:{
+if(isdigit(uchar(*(p+1)))){
+s=match_capture(ms,s,uchar(*(p+1)));
+if(s==NULL)return NULL;
+p+=2;goto init;
+}
+goto dflt;
+}
+}
+}
+case'\0':{
+return s;
+}
+case'$':{
+if(*(p+1)=='\0')
+return(s==ms->src_end)?s:NULL;
+else goto dflt;
+}
+default:dflt:{
+const char*ep=classend(ms,p);
+int m=s<ms->src_end&&singlematch(uchar(*s),p,ep);
+switch(*ep){
+case'?':{
+const char*res;
+if(m&&((res=match(ms,s+1,ep+1))!=NULL))
+return res;
+p=ep+1;goto init;
+}
+case'*':{
+return max_expand(ms,s,p,ep);
+}
+case'+':{
+return(m?max_expand(ms,s+1,p,ep):NULL);
+}
+case'-':{
+return min_expand(ms,s,p,ep);
+}
+default:{
+if(!m)return NULL;
+s++;p=ep;goto init;
+}
+}
+}
+}
+}
+static const char*lmemfind(const char*s1,size_t l1,
+const char*s2,size_t l2){
+if(l2==0)return s1;
+else if(l2>l1)return NULL;
+else{
+const char*init;
+l2--;
+l1=l1-l2;
+while(l1>0&&(init=(const char*)memchr(s1,*s2,l1))!=NULL){
+init++;
+if(memcmp(init,s2+1,l2)==0)
+return init-1;
+else{
+l1-=init-s1;
+s1=init;
+}
+}
+return NULL;
+}
+}
+static void push_onecapture(MatchState*ms,int i,const char*s,
+const char*e){
+if(i>=ms->level){
+if(i==0)
+lua_pushlstring(ms->L,s,e-s);
+else
+luaL_error(ms->L,"invalid capture index");
+}
+else{
+ptrdiff_t l=ms->capture[i].len;
+if(l==(-1))luaL_error(ms->L,"unfinished capture");
+if(l==(-2))
+lua_pushinteger(ms->L,ms->capture[i].init-ms->src_init+1);
+else
+lua_pushlstring(ms->L,ms->capture[i].init,l);
+}
+}
+static int push_captures(MatchState*ms,const char*s,const char*e){
+int i;
+int nlevels=(ms->level==0&&s)?1:ms->level;
+luaL_checkstack(ms->L,nlevels,"too many captures");
+for(i=0;i<nlevels;i++)
+push_onecapture(ms,i,s,e);
+return nlevels;
+}
+static int str_find_aux(lua_State*L,int find){
+size_t l1,l2;
+const char*s=luaL_checklstring(L,1,&l1);
+const char*p=luaL_checklstring(L,2,&l2);
+ptrdiff_t init=posrelat(luaL_optinteger(L,3,1),l1)-1;
+if(init<0)init=0;
+else if((size_t)(init)>l1)init=(ptrdiff_t)l1;
+if(find&&(lua_toboolean(L,4)||
+strpbrk(p,"^$*+?.([%-")==NULL)){
+const char*s2=lmemfind(s+init,l1-init,p,l2);
+if(s2){
+lua_pushinteger(L,s2-s+1);
+lua_pushinteger(L,s2-s+l2);
+return 2;
+}
+}
+else{
+MatchState ms;
+int anchor=(*p=='^')?(p++,1):0;
+const char*s1=s+init;
+ms.L=L;
+ms.src_init=s;
+ms.src_end=s+l1;
+do{
+const char*res;
+ms.level=0;
+if((res=match(&ms,s1,p))!=NULL){
+if(find){
+lua_pushinteger(L,s1-s+1);
+lua_pushinteger(L,res-s);
+return push_captures(&ms,NULL,0)+2;
+}
+else
+return push_captures(&ms,s1,res);
+}
+}while(s1++<ms.src_end&&!anchor);
+}
+lua_pushnil(L);
+return 1;
+}
+static int str_find(lua_State*L){
+return str_find_aux(L,1);
+}
+static int str_match(lua_State*L){
+return str_find_aux(L,0);
+}
+static int gmatch_aux(lua_State*L){
+MatchState ms;
+size_t ls;
+const char*s=lua_tolstring(L,lua_upvalueindex(1),&ls);
+const char*p=lua_tostring(L,lua_upvalueindex(2));
+const char*src;
+ms.L=L;
+ms.src_init=s;
+ms.src_end=s+ls;
+for(src=s+(size_t)lua_tointeger(L,lua_upvalueindex(3));
+src<=ms.src_end;
+src++){
+const char*e;
+ms.level=0;
+if((e=match(&ms,src,p))!=NULL){
+lua_Integer newstart=e-s;
+if(e==src)newstart++;
+lua_pushinteger(L,newstart);
+lua_replace(L,lua_upvalueindex(3));
+return push_captures(&ms,src,e);
+}
+}
+return 0;
+}
+static int gmatch(lua_State*L){
+luaL_checkstring(L,1);
+luaL_checkstring(L,2);
+lua_settop(L,2);
+lua_pushinteger(L,0);
+lua_pushcclosure(L,gmatch_aux,3);
+return 1;
+}
+static void add_s(MatchState*ms,luaL_Buffer*b,const char*s,
+const char*e){
+size_t l,i;
+const char*news=lua_tolstring(ms->L,3,&l);
+for(i=0;i<l;i++){
+if(news[i]!='%')
+luaL_addchar(b,news[i]);
+else{
+i++;
+if(!isdigit(uchar(news[i])))
+luaL_addchar(b,news[i]);
+else if(news[i]=='0')
+luaL_addlstring(b,s,e-s);
+else{
+push_onecapture(ms,news[i]-'1',s,e);
+luaL_addvalue(b);
+}
+}
+}
+}
+static void add_value(MatchState*ms,luaL_Buffer*b,const char*s,
+const char*e){
+lua_State*L=ms->L;
+switch(lua_type(L,3)){
+case 3:
+case 4:{
+add_s(ms,b,s,e);
+return;
+}
+case 6:{
+int n;
+lua_pushvalue(L,3);
+n=push_captures(ms,s,e);
+lua_call(L,n,1);
+break;
+}
+case 5:{
+push_onecapture(ms,0,s,e);
+lua_gettable(L,3);
+break;
+}
+}
+if(!lua_toboolean(L,-1)){
+lua_pop(L,1);
+lua_pushlstring(L,s,e-s);
+}
+else if(!lua_isstring(L,-1))
+luaL_error(L,"invalid replacement value (a %s)",luaL_typename(L,-1));
+luaL_addvalue(b);
+}
+static int str_gsub(lua_State*L){
+size_t srcl;
+const char*src=luaL_checklstring(L,1,&srcl);
+const char*p=luaL_checkstring(L,2);
+int tr=lua_type(L,3);
+int max_s=luaL_optint(L,4,srcl+1);
+int anchor=(*p=='^')?(p++,1):0;
+int n=0;
+MatchState ms;
+luaL_Buffer b;
+luaL_argcheck(L,tr==3||tr==4||
+tr==6||tr==5,3,
+"string/function/table expected");
+luaL_buffinit(L,&b);
+ms.L=L;
+ms.src_init=src;
+ms.src_end=src+srcl;
+while(n<max_s){
+const char*e;
+ms.level=0;
+e=match(&ms,src,p);
+if(e){
+n++;
+add_value(&ms,&b,src,e);
+}
+if(e&&e>src)
+src=e;
+else if(src<ms.src_end)
+luaL_addchar(&b,*src++);
+else break;
+if(anchor)break;
+}
+luaL_addlstring(&b,src,ms.src_end-src);
+luaL_pushresult(&b);
+lua_pushinteger(L,n);
+return 2;
+}
+static void addquoted(lua_State*L,luaL_Buffer*b,int arg){
+size_t l;
+const char*s=luaL_checklstring(L,arg,&l);
+luaL_addchar(b,'"');
+while(l--){
+switch(*s){
+case'"':case'\\':case'\n':{
+luaL_addchar(b,'\\');
+luaL_addchar(b,*s);
+break;
+}
+case'\r':{
+luaL_addlstring(b,"\\r",2);
+break;
+}
+case'\0':{
+luaL_addlstring(b,"\\000",4);
+break;
+}
+default:{
+luaL_addchar(b,*s);
+break;
+}
+}
+s++;
+}
+luaL_addchar(b,'"');
+}
+static const char*scanformat(lua_State*L,const char*strfrmt,char*form){
+const char*p=strfrmt;
+while(*p!='\0'&&strchr("-+ #0",*p)!=NULL)p++;
+if((size_t)(p-strfrmt)>=sizeof("-+ #0"))
+luaL_error(L,"invalid format (repeated flags)");
+if(isdigit(uchar(*p)))p++;
+if(isdigit(uchar(*p)))p++;
+if(*p=='.'){
+p++;
+if(isdigit(uchar(*p)))p++;
+if(isdigit(uchar(*p)))p++;
+}
+if(isdigit(uchar(*p)))
+luaL_error(L,"invalid format (width or precision too long)");
+*(form++)='%';
+strncpy(form,strfrmt,p-strfrmt+1);
+form+=p-strfrmt+1;
+*form='\0';
+return p;
+}
+static void addintlen(char*form){
+size_t l=strlen(form);
+char spec=form[l-1];
+strcpy(form+l-1,"l");
+form[l+sizeof("l")-2]=spec;
+form[l+sizeof("l")-1]='\0';
+}
+static int str_format(lua_State*L){
+int top=lua_gettop(L);
+int arg=1;
+size_t sfl;
+const char*strfrmt=luaL_checklstring(L,arg,&sfl);
+const char*strfrmt_end=strfrmt+sfl;
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+while(strfrmt<strfrmt_end){
+if(*strfrmt!='%')
+luaL_addchar(&b,*strfrmt++);
+else if(*++strfrmt=='%')
+luaL_addchar(&b,*strfrmt++);
+else{
+char form[(sizeof("-+ #0")+sizeof("l")+10)];
+char buff[512];
+if(++arg>top)
+luaL_argerror(L,arg,"no value");
+strfrmt=scanformat(L,strfrmt,form);
+switch(*strfrmt++){
+case'c':{
+sprintf(buff,form,(int)luaL_checknumber(L,arg));
+break;
+}
+case'd':case'i':{
+addintlen(form);
+sprintf(buff,form,(long)luaL_checknumber(L,arg));
+break;
+}
+case'o':case'u':case'x':case'X':{
+addintlen(form);
+sprintf(buff,form,(unsigned long)luaL_checknumber(L,arg));
+break;
+}
+case'e':case'E':case'f':
+case'g':case'G':{
+sprintf(buff,form,(double)luaL_checknumber(L,arg));
+break;
+}
+case'q':{
+addquoted(L,&b,arg);
+continue;
+}
+case's':{
+size_t l;
+const char*s=luaL_checklstring(L,arg,&l);
+if(!strchr(form,'.')&&l>=100){
+lua_pushvalue(L,arg);
+luaL_addvalue(&b);
+continue;
+}
+else{
+sprintf(buff,form,s);
+break;
+}
+}
+default:{
+return luaL_error(L,"invalid option "LUA_QL("%%%c")" to "
+LUA_QL("format"),*(strfrmt-1));
+}
+}
+luaL_addlstring(&b,buff,strlen(buff));
+}
+}
+luaL_pushresult(&b);
+return 1;
+}
+static const luaL_Reg strlib[]={
+{"byte",str_byte},
+{"char",str_char},
+{"find",str_find},
+{"format",str_format},
+{"gmatch",gmatch},
+{"gsub",str_gsub},
+{"lower",str_lower},
+{"match",str_match},
+{"rep",str_rep},
+{"sub",str_sub},
+{"upper",str_upper},
+{NULL,NULL}
+};
+static void createmetatable(lua_State*L){
+lua_createtable(L,0,1);
+lua_pushliteral(L,"");
+lua_pushvalue(L,-2);
+lua_setmetatable(L,-2);
+lua_pop(L,1);
+lua_pushvalue(L,-2);
+lua_setfield(L,-2,"__index");
+lua_pop(L,1);
+}
+static int luaopen_string(lua_State*L){
+luaL_register(L,"string",strlib);
+createmetatable(L);
+return 1;
+}
+static const luaL_Reg lualibs[]={
+{"",luaopen_base},
+{"table",luaopen_table},
+{"io",luaopen_io},
+{"os",luaopen_os},
+{"string",luaopen_string},
+{NULL,NULL}
+};
+static void luaL_openlibs(lua_State*L){
+const luaL_Reg*lib=lualibs;
+for(;lib->func;lib++){
+lua_pushcfunction(L,lib->func);
+lua_pushstring(L,lib->name);
+lua_call(L,1,0);
+}
+}
+typedef unsigned int UB;
+static UB barg(lua_State*L,int idx){
+union{lua_Number n;U64 b;}bn;
+bn.n=lua_tonumber(L,idx)+6755399441055744.0;
+if(bn.n==0.0&&!lua_isnumber(L,idx))luaL_typerror(L,idx,"number");
+return(UB)bn.b;
+}
+#define BRET(b)lua_pushnumber(L,(lua_Number)(int)(b));return 1;
+static int tobit(lua_State*L){
+BRET(barg(L,1))}
+static int bnot(lua_State*L){
+BRET(~barg(L,1))}
+static int band(lua_State*L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b&=barg(L,i);BRET(b)}
+static int bor(lua_State*L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b|=barg(L,i);BRET(b)}
+static int bxor(lua_State*L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b^=barg(L,i);BRET(b)}
+static int lshift(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b<<n)}
+static int rshift(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b>>n)}
+static int arshift(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((int)b>>n)}
+static int rol(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b<<n)|(b>>(32-n)))}
+static int ror(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b>>n)|(b<<(32-n)))}
+static int bswap(lua_State*L){
+UB b=barg(L,1);b=(b>>24)|((b>>8)&0xff00)|((b&0xff00)<<8)|(b<<24);BRET(b)}
+static int tohex(lua_State*L){
+UB b=barg(L,1);
+int n=lua_isnone(L,2)?8:(int)barg(L,2);
+const char*hexdigits="0123456789abcdef";
+char buf[8];
+int i;
+if(n<0){n=-n;hexdigits="0123456789ABCDEF";}
+if(n>8)n=8;
+for(i=(int)n;--i>=0;){buf[i]=hexdigits[b&15];b>>=4;}
+lua_pushlstring(L,buf,(size_t)n);
+return 1;
+}
+static const struct luaL_Reg bitlib[]={
+{"tobit",tobit},
+{"bnot",bnot},
+{"band",band},
+{"bor",bor},
+{"bxor",bxor},
+{"lshift",lshift},
+{"rshift",rshift},
+{"arshift",arshift},
+{"rol",rol},
+{"ror",ror},
+{"bswap",bswap},
+{"tohex",tohex},
+{NULL,NULL}
+};
+int main(int argc,char**argv){
+lua_State*L=luaL_newstate();
+int i;
+luaL_openlibs(L);
+luaL_register(L,"bit",bitlib);
+if(argc<2)return sizeof(void*);
+lua_createtable(L,0,1);
+lua_pushstring(L,argv[1]);
+lua_rawseti(L,-2,0);
+lua_setglobal(L,"arg");
+if(luaL_loadfile(L,argv[1]))
+goto err;
+for(i=2;i<argc;i++)
+lua_pushstring(L,argv[i]);
+if(lua_pcall(L,argc-2,0,0)){
+err:
+fprintf(stderr,"Error: %s\n",lua_tostring(L,-1));
+return 1;
+}
+lua_close(L);
+return 0;
+}
diff --git a/lib/luajit/src/jit/.gitignore b/lib/luajit/src/jit/.gitignore
new file mode 100644
index 00000000..500e2855
--- /dev/null
+++ b/lib/luajit/src/jit/.gitignore
@@ -0,0 +1 @@
+vmdef.lua
diff --git a/lib/luajit/src/jit/bc.lua b/lib/luajit/src/jit/bc.lua
new file mode 100644
index 00000000..9df19c7b
--- /dev/null
+++ b/lib/luajit/src/jit/bc.lua
@@ -0,0 +1,191 @@
+----------------------------------------------------------------------------
+-- LuaJIT bytecode listing module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module lists the bytecode of a Lua function. If it's loaded by -jbc
+-- it hooks into the parser and lists all functions of a chunk as they
+-- are parsed.
+--
+-- Example usage:
+--
+--   luajit -jbc -e 'local x=0; for i=1,1e6 do x=x+i end; print(x)'
+--   luajit -jbc=- foo.lua
+--   luajit -jbc=foo.list foo.lua
+--
+-- Default output is to stderr. To redirect the output to a file, pass a
+-- filename as an argument (use '-' for stdout) or set the environment
+-- variable LUAJIT_LISTFILE. The file is overwritten every time the module
+-- is started.
+--
+-- This module can also be used programmatically:
+--
+--   local bc = require("jit.bc")
+--
+--   local function foo() print("hello") end
+--
+--   bc.dump(foo)           --> -- BYTECODE -- [...]
+--   print(bc.line(foo, 2)) --> 0002    KSTR     1   1      ; "hello"
+--
+--   local out = {
+--     -- Do something with each line:
+--     write = function(t, ...) io.write(...) end,
+--     close = function(t) end,
+--     flush = function(t) end,
+--   }
+--   bc.dump(foo, out)
+--
+------------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20003, "LuaJIT core/library version mismatch")
+local jutil = require("jit.util")
+local vmdef = require("jit.vmdef")
+local bit = require("bit")
+local sub, gsub, format = string.sub, string.gsub, string.format
+local byte, band, shr = string.byte, bit.band, bit.rshift
+local funcinfo, funcbc, funck = jutil.funcinfo, jutil.funcbc, jutil.funck
+local funcuvname = jutil.funcuvname
+local bcnames = vmdef.bcnames
+local stdout, stderr = io.stdout, io.stderr
+
+------------------------------------------------------------------------------
+
+local function ctlsub(c)
+  if c == "\n" then return "\\n"
+  elseif c == "\r" then return "\\r"
+  elseif c == "\t" then return "\\t"
+  else return format("\\%03d", byte(c))
+  end
+end
+
+-- Return one bytecode line.
+local function bcline(func, pc, prefix)
+  local ins, m = funcbc(func, pc)
+  if not ins then return end
+  local ma, mb, mc = band(m, 7), band(m, 15*8), band(m, 15*128)
+  local a = band(shr(ins, 8), 0xff)
+  local oidx = 6*band(ins, 0xff)
+  local op = sub(bcnames, oidx+1, oidx+6)
+  local s = format("%04d %s %-6s %3s ",
+    pc, prefix or "  ", op, ma == 0 and "" or a)
+  local d = shr(ins, 16)
+  if mc == 13*128 then -- BCMjump
+    return format("%s=> %04d\n", s, pc+d-0x7fff)
+  end
+  if mb ~= 0 then
+    d = band(d, 0xff)
+  elseif mc == 0 then
+    return s.."\n"
+  end
+  local kc
+  if mc == 10*128 then -- BCMstr
+    kc = funck(func, -d-1)
+    kc = format(#kc > 40 and '"%.40s"~' or '"%s"', gsub(kc, "%c", ctlsub))
+  elseif mc == 9*128 then -- BCMnum
+    kc = funck(func, d)
+    if op == "TSETM " then kc = kc - 2^52 end
+  elseif mc == 12*128 then -- BCMfunc
+    local fi = funcinfo(funck(func, -d-1))
+    if fi.ffid then
+      kc = vmdef.ffnames[fi.ffid]
+    else
+      kc = fi.loc
+    end
+  elseif mc == 5*128 then -- BCMuv
+    kc = funcuvname(func, d)
+  end
+  if ma == 5 then -- BCMuv
+    local ka = funcuvname(func, a)
+    if kc then kc = ka.." ; "..kc else kc = ka end
+  end
+  if mb ~= 0 then
+    local b = shr(ins, 24)
+    if kc then return format("%s%3d %3d  ; %s\n", s, b, d, kc) end
+    return format("%s%3d %3d\n", s, b, d)
+  end
+  if kc then return format("%s%3d      ; %s\n", s, d, kc) end
+  if mc == 7*128 and d > 32767 then d = d - 65536 end -- BCMlits
+  return format("%s%3d\n", s, d)
+end
+
+-- Collect branch targets of a function.
+local function bctargets(func)
+  local target = {}
+  for pc=1,1000000000 do
+    local ins, m = funcbc(func, pc)
+    if not ins then break end
+    if band(m, 15*128) == 13*128 then target[pc+shr(ins, 16)-0x7fff] = true end
+  end
+  return target
+end
+
+-- Dump bytecode instructions of a function.
+local function bcdump(func, out, all)
+  if not out then out = stdout end
+  local fi = funcinfo(func)
+  if all and fi.children then
+    for n=-1,-1000000000,-1 do
+      local k = funck(func, n)
+      if not k then break end
+      if type(k) == "proto" then bcdump(k, out, true) end
+    end
+  end
+  out:write(format("-- BYTECODE -- %s-%d\n", fi.loc, fi.lastlinedefined))
+  local target = bctargets(func)
+  for pc=1,1000000000 do
+    local s = bcline(func, pc, target[pc] and "=>")
+    if not s then break end
+    out:write(s)
+  end
+  out:write("\n")
+  out:flush()
+end
+
+------------------------------------------------------------------------------
+
+-- Active flag and output file handle.
+local active, out
+
+-- List handler.
+local function h_list(func)
+  return bcdump(func, out)
+end
+
+-- Detach list handler.
+local function bclistoff()
+  if active then
+    active = false
+    jit.attach(h_list)
+    if out and out ~= stdout and out ~= stderr then out:close() end
+    out = nil
+  end
+end
+
+-- Open the output file and attach list handler.
+local function bcliston(outfile)
+  if active then bclistoff() end
+  if not outfile then outfile = os.getenv("LUAJIT_LISTFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stderr
+  end
+  jit.attach(h_list, "bc")
+  active = true
+end
+
+-- Public module functions.
+module(...)
+
+line = bcline
+dump = bcdump
+targets = bctargets
+
+on = bcliston
+off = bclistoff
+start = bcliston -- For -j command line option.
+
diff --git a/lib/luajit/src/jit/bcsave.lua b/lib/luajit/src/jit/bcsave.lua
new file mode 100644
index 00000000..f55bda97
--- /dev/null
+++ b/lib/luajit/src/jit/bcsave.lua
@@ -0,0 +1,659 @@
+----------------------------------------------------------------------------
+-- LuaJIT module to save/list bytecode.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module saves or lists the bytecode for an input file.
+-- It's run by the -b command line option.
+--
+------------------------------------------------------------------------------
+
+local jit = require("jit")
+assert(jit.version_num == 20003, "LuaJIT core/library version mismatch")
+local bit = require("bit")
+
+-- Symbol name prefix for LuaJIT bytecode.
+local LJBC_PREFIX = "luaJIT_BC_"
+
+------------------------------------------------------------------------------
+
+local function usage()
+  io.stderr:write[[
+Save LuaJIT bytecode: luajit -b[options] input output
+  -l        Only list bytecode.
+  -s        Strip debug info (default).
+  -g        Keep debug info.
+  -n name   Set module name (default: auto-detect from input name).
+  -t type   Set output file type (default: auto-detect from output name).
+  -a arch   Override architecture for object files (default: native).
+  -o os     Override OS for object files (default: native).
+  -e chunk  Use chunk string as input.
+  --        Stop handling options.
+  -         Use stdin as input and/or stdout as output.
+
+File types: c h obj o raw (default)
+]]
+  os.exit(1)
+end
+
+local function check(ok, ...)
+  if ok then return ok, ... end
+  io.stderr:write("luajit: ", ...)
+  io.stderr:write("\n")
+  os.exit(1)
+end
+
+local function readfile(input)
+  if type(input) == "function" then return input end
+  if input == "-" then input = nil end
+  return check(loadfile(input))
+end
+
+local function savefile(name, mode)
+  if name == "-" then return io.stdout end
+  return check(io.open(name, mode))
+end
+
+------------------------------------------------------------------------------
+
+local map_type = {
+  raw = "raw", c = "c", h = "h", o = "obj", obj = "obj",
+}
+
+local map_arch = {
+  x86 = true, x64 = true, arm = true, ppc = true, ppcspe = true,
+  mips = true, mipsel = true,
+}
+
+local map_os = {
+  linux = true, windows = true, osx = true, freebsd = true, netbsd = true,
+  openbsd = true, solaris = true,
+}
+
+local function checkarg(str, map, err)
+  str = string.lower(str)
+  local s = check(map[str], "unknown ", err)
+  return s == true and str or s
+end
+
+local function detecttype(str)
+  local ext = string.match(string.lower(str), "%.(%a+)$")
+  return map_type[ext] or "raw"
+end
+
+local function checkmodname(str)
+  check(string.match(str, "^[%w_.%-]+$"), "bad module name")
+  return string.gsub(str, "[%.%-]", "_")
+end
+
+local function detectmodname(str)
+  if type(str) == "string" then
+    local tail = string.match(str, "[^/\\]+$")
+    if tail then str = tail end
+    local head = string.match(str, "^(.*)%.[^.]*$")
+    if head then str = head end
+    str = string.match(str, "^[%w_.%-]+")
+  else
+    str = nil
+  end
+  check(str, "cannot derive module name, use -n name")
+  return string.gsub(str, "[%.%-]", "_")
+end
+
+------------------------------------------------------------------------------
+
+local function bcsave_tail(fp, output, s)
+  local ok, err = fp:write(s)
+  if ok and output ~= "-" then ok, err = fp:close() end
+  check(ok, "cannot write ", output, ": ", err)
+end
+
+local function bcsave_raw(output, s)
+  local fp = savefile(output, "wb")
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_c(ctx, output, s)
+  local fp = savefile(output, "w")
+  if ctx.type == "c" then
+    fp:write(string.format([[
+#ifdef _cplusplus
+extern "C"
+#endif
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+const char %s%s[] = {
+]], LJBC_PREFIX, ctx.modname))
+  else
+    fp:write(string.format([[
+#define %s%s_SIZE %d
+static const char %s%s[] = {
+]], LJBC_PREFIX, ctx.modname, #s, LJBC_PREFIX, ctx.modname))
+  end
+  local t, n, m = {}, 0, 0
+  for i=1,#s do
+    local b = tostring(string.byte(s, i))
+    m = m + #b + 1
+    if m > 78 then
+      fp:write(table.concat(t, ",", 1, n), ",\n")
+      n, m = 0, #b + 1
+    end
+    n = n + 1
+    t[n] = b
+  end
+  bcsave_tail(fp, output, table.concat(t, ",", 1, n).."\n};\n")
+end
+
+local function bcsave_elfobj(ctx, output, s, ffi)
+  ffi.cdef[[
+typedef struct {
+  uint8_t emagic[4], eclass, eendian, eversion, eosabi, eabiversion, epad[7];
+  uint16_t type, machine;
+  uint32_t version;
+  uint32_t entry, phofs, shofs;
+  uint32_t flags;
+  uint16_t ehsize, phentsize, phnum, shentsize, shnum, shstridx;
+} ELF32header;
+typedef struct {
+  uint8_t emagic[4], eclass, eendian, eversion, eosabi, eabiversion, epad[7];
+  uint16_t type, machine;
+  uint32_t version;
+  uint64_t entry, phofs, shofs;
+  uint32_t flags;
+  uint16_t ehsize, phentsize, phnum, shentsize, shnum, shstridx;
+} ELF64header;
+typedef struct {
+  uint32_t name, type, flags, addr, ofs, size, link, info, align, entsize;
+} ELF32sectheader;
+typedef struct {
+  uint32_t name, type;
+  uint64_t flags, addr, ofs, size;
+  uint32_t link, info;
+  uint64_t align, entsize;
+} ELF64sectheader;
+typedef struct {
+  uint32_t name, value, size;
+  uint8_t info, other;
+  uint16_t sectidx;
+} ELF32symbol;
+typedef struct {
+  uint32_t name;
+  uint8_t info, other;
+  uint16_t sectidx;
+  uint64_t value, size;
+} ELF64symbol;
+typedef struct {
+  ELF32header hdr;
+  ELF32sectheader sect[6];
+  ELF32symbol sym[2];
+  uint8_t space[4096];
+} ELF32obj;
+typedef struct {
+  ELF64header hdr;
+  ELF64sectheader sect[6];
+  ELF64symbol sym[2];
+  uint8_t space[4096];
+} ELF64obj;
+]]
+  local symname = LJBC_PREFIX..ctx.modname
+  local is64, isbe = false, false
+  if ctx.arch == "x64" then
+    is64 = true
+  elseif ctx.arch == "ppc" or ctx.arch == "ppcspe" or ctx.arch == "mips" then
+    isbe = true
+  end
+
+  -- Handle different host/target endianess.
+  local function f32(x) return x end
+  local f16, fofs = f32, f32
+  if ffi.abi("be") ~= isbe then
+    f32 = bit.bswap
+    function f16(x) return bit.rshift(bit.bswap(x), 16) end
+    if is64 then
+      local two32 = ffi.cast("int64_t", 2^32)
+      function fofs(x) return bit.bswap(x)*two32 end
+    else
+      fofs = f32
+    end
+  end
+
+  -- Create ELF object and fill in header.
+  local o = ffi.new(is64 and "ELF64obj" or "ELF32obj")
+  local hdr = o.hdr
+  if ctx.os == "bsd" or ctx.os == "other" then -- Determine native hdr.eosabi.
+    local bf = assert(io.open("/bin/ls", "rb"))
+    local bs = bf:read(9)
+    bf:close()
+    ffi.copy(o, bs, 9)
+    check(hdr.emagic[0] == 127, "no support for writing native object files")
+  else
+    hdr.emagic = "\127ELF"
+    hdr.eosabi = ({ freebsd=9, netbsd=2, openbsd=12, solaris=6 })[ctx.os] or 0
+  end
+  hdr.eclass = is64 and 2 or 1
+  hdr.eendian = isbe and 2 or 1
+  hdr.eversion = 1
+  hdr.type = f16(1)
+  hdr.machine = f16(({ x86=3, x64=62, arm=40, ppc=20, ppcspe=20, mips=8, mipsel=8 })[ctx.arch])
+  if ctx.arch == "mips" or ctx.arch == "mipsel" then
+    hdr.flags = 0x50001006
+  end
+  hdr.version = f32(1)
+  hdr.shofs = fofs(ffi.offsetof(o, "sect"))
+  hdr.ehsize = f16(ffi.sizeof(hdr))
+  hdr.shentsize = f16(ffi.sizeof(o.sect[0]))
+  hdr.shnum = f16(6)
+  hdr.shstridx = f16(2)
+
+  -- Fill in sections and symbols.
+  local sofs, ofs = ffi.offsetof(o, "space"), 1
+  for i,name in ipairs{
+      ".symtab", ".shstrtab", ".strtab", ".rodata", ".note.GNU-stack",
+    } do
+    local sect = o.sect[i]
+    sect.align = fofs(1)
+    sect.name = f32(ofs)
+    ffi.copy(o.space+ofs, name)
+    ofs = ofs + #name+1
+  end
+  o.sect[1].type = f32(2) -- .symtab
+  o.sect[1].link = f32(3)
+  o.sect[1].info = f32(1)
+  o.sect[1].align = fofs(8)
+  o.sect[1].ofs = fofs(ffi.offsetof(o, "sym"))
+  o.sect[1].entsize = fofs(ffi.sizeof(o.sym[0]))
+  o.sect[1].size = fofs(ffi.sizeof(o.sym))
+  o.sym[1].name = f32(1)
+  o.sym[1].sectidx = f16(4)
+  o.sym[1].size = fofs(#s)
+  o.sym[1].info = 17
+  o.sect[2].type = f32(3) -- .shstrtab
+  o.sect[2].ofs = fofs(sofs)
+  o.sect[2].size = fofs(ofs)
+  o.sect[3].type = f32(3) -- .strtab
+  o.sect[3].ofs = fofs(sofs + ofs)
+  o.sect[3].size = fofs(#symname+1)
+  ffi.copy(o.space+ofs+1, symname)
+  ofs = ofs + #symname + 2
+  o.sect[4].type = f32(1) -- .rodata
+  o.sect[4].flags = fofs(2)
+  o.sect[4].ofs = fofs(sofs + ofs)
+  o.sect[4].size = fofs(#s)
+  o.sect[5].type = f32(1) -- .note.GNU-stack
+  o.sect[5].ofs = fofs(sofs + ofs + #s)
+
+  -- Write ELF object file.
+  local fp = savefile(output, "wb")
+  fp:write(ffi.string(o, ffi.sizeof(o)-4096+ofs))
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_peobj(ctx, output, s, ffi)
+  ffi.cdef[[
+typedef struct {
+  uint16_t arch, nsects;
+  uint32_t time, symtabofs, nsyms;
+  uint16_t opthdrsz, flags;
+} PEheader;
+typedef struct {
+  char name[8];
+  uint32_t vsize, vaddr, size, ofs, relocofs, lineofs;
+  uint16_t nreloc, nline;
+  uint32_t flags;
+} PEsection;
+typedef struct __attribute((packed)) {
+  union {
+    char name[8];
+    uint32_t nameref[2];
+  };
+  uint32_t value;
+  int16_t sect;
+  uint16_t type;
+  uint8_t scl, naux;
+} PEsym;
+typedef struct __attribute((packed)) {
+  uint32_t size;
+  uint16_t nreloc, nline;
+  uint32_t cksum;
+  uint16_t assoc;
+  uint8_t comdatsel, unused[3];
+} PEsymaux;
+typedef struct {
+  PEheader hdr;
+  PEsection sect[2];
+  // Must be an even number of symbol structs.
+  PEsym sym0;
+  PEsymaux sym0aux;
+  PEsym sym1;
+  PEsymaux sym1aux;
+  PEsym sym2;
+  PEsym sym3;
+  uint32_t strtabsize;
+  uint8_t space[4096];
+} PEobj;
+]]
+  local symname = LJBC_PREFIX..ctx.modname
+  local is64 = false
+  if ctx.arch == "x86" then
+    symname = "_"..symname
+  elseif ctx.arch == "x64" then
+    is64 = true
+  end
+  local symexport = "   /EXPORT:"..symname..",DATA "
+
+  -- The file format is always little-endian. Swap if the host is big-endian.
+  local function f32(x) return x end
+  local f16 = f32
+  if ffi.abi("be") then
+    f32 = bit.bswap
+    function f16(x) return bit.rshift(bit.bswap(x), 16) end
+  end
+
+  -- Create PE object and fill in header.
+  local o = ffi.new("PEobj")
+  local hdr = o.hdr
+  hdr.arch = f16(({ x86=0x14c, x64=0x8664, arm=0x1c0, ppc=0x1f2, mips=0x366, mipsel=0x366 })[ctx.arch])
+  hdr.nsects = f16(2)
+  hdr.symtabofs = f32(ffi.offsetof(o, "sym0"))
+  hdr.nsyms = f32(6)
+
+  -- Fill in sections and symbols.
+  o.sect[0].name = ".drectve"
+  o.sect[0].size = f32(#symexport)
+  o.sect[0].flags = f32(0x00100a00)
+  o.sym0.sect = f16(1)
+  o.sym0.scl = 3
+  o.sym0.name = ".drectve"
+  o.sym0.naux = 1
+  o.sym0aux.size = f32(#symexport)
+  o.sect[1].name = ".rdata"
+  o.sect[1].size = f32(#s)
+  o.sect[1].flags = f32(0x40300040)
+  o.sym1.sect = f16(2)
+  o.sym1.scl = 3
+  o.sym1.name = ".rdata"
+  o.sym1.naux = 1
+  o.sym1aux.size = f32(#s)
+  o.sym2.sect = f16(2)
+  o.sym2.scl = 2
+  o.sym2.nameref[1] = f32(4)
+  o.sym3.sect = f16(-1)
+  o.sym3.scl = 2
+  o.sym3.value = f32(1)
+  o.sym3.name = "@feat.00" -- Mark as SafeSEH compliant.
+  ffi.copy(o.space, symname)
+  local ofs = #symname + 1
+  o.strtabsize = f32(ofs + 4)
+  o.sect[0].ofs = f32(ffi.offsetof(o, "space") + ofs)
+  ffi.copy(o.space + ofs, symexport)
+  ofs = ofs + #symexport
+  o.sect[1].ofs = f32(ffi.offsetof(o, "space") + ofs)
+
+  -- Write PE object file.
+  local fp = savefile(output, "wb")
+  fp:write(ffi.string(o, ffi.sizeof(o)-4096+ofs))
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_machobj(ctx, output, s, ffi)
+  ffi.cdef[[
+typedef struct
+{
+  uint32_t magic, cputype, cpusubtype, filetype, ncmds, sizeofcmds, flags;
+} mach_header;
+typedef struct
+{
+  mach_header; uint32_t reserved;
+} mach_header_64;
+typedef struct {
+  uint32_t cmd, cmdsize;
+  char segname[16];
+  uint32_t vmaddr, vmsize, fileoff, filesize;
+  uint32_t maxprot, initprot, nsects, flags;
+} mach_segment_command;
+typedef struct {
+  uint32_t cmd, cmdsize;
+  char segname[16];
+  uint64_t vmaddr, vmsize, fileoff, filesize;
+  uint32_t maxprot, initprot, nsects, flags;
+} mach_segment_command_64;
+typedef struct {
+  char sectname[16], segname[16];
+  uint32_t addr, size;
+  uint32_t offset, align, reloff, nreloc, flags;
+  uint32_t reserved1, reserved2;
+} mach_section;
+typedef struct {
+  char sectname[16], segname[16];
+  uint64_t addr, size;
+  uint32_t offset, align, reloff, nreloc, flags;
+  uint32_t reserved1, reserved2, reserved3;
+} mach_section_64;
+typedef struct {
+  uint32_t cmd, cmdsize, symoff, nsyms, stroff, strsize;
+} mach_symtab_command;
+typedef struct {
+  int32_t strx;
+  uint8_t type, sect;
+  int16_t desc;
+  uint32_t value;
+} mach_nlist;
+typedef struct {
+  uint32_t strx;
+  uint8_t type, sect;
+  uint16_t desc;
+  uint64_t value;
+} mach_nlist_64;
+typedef struct
+{
+  uint32_t magic, nfat_arch;
+} mach_fat_header;
+typedef struct
+{
+  uint32_t cputype, cpusubtype, offset, size, align;
+} mach_fat_arch;
+typedef struct {
+  struct {
+    mach_header hdr;
+    mach_segment_command seg;
+    mach_section sec;
+    mach_symtab_command sym;
+  } arch[1];
+  mach_nlist sym_entry;
+  uint8_t space[4096];
+} mach_obj;
+typedef struct {
+  struct {
+    mach_header_64 hdr;
+    mach_segment_command_64 seg;
+    mach_section_64 sec;
+    mach_symtab_command sym;
+  } arch[1];
+  mach_nlist_64 sym_entry;
+  uint8_t space[4096];
+} mach_obj_64;
+typedef struct {
+  mach_fat_header fat;
+  mach_fat_arch fat_arch[4];
+  struct {
+    mach_header hdr;
+    mach_segment_command seg;
+    mach_section sec;
+    mach_symtab_command sym;
+  } arch[4];
+  mach_nlist sym_entry;
+  uint8_t space[4096];
+} mach_fat_obj;
+]]
+  local symname = '_'..LJBC_PREFIX..ctx.modname
+  local isfat, is64, align, mobj = false, false, 4, "mach_obj"
+  if ctx.arch == "x64" then
+    is64, align, mobj = true, 8, "mach_obj_64"
+  elseif ctx.arch == "arm" then
+    isfat, mobj = true, "mach_fat_obj"
+  else
+    check(ctx.arch == "x86", "unsupported architecture for OSX")
+  end
+  local function aligned(v, a) return bit.band(v+a-1, -a) end
+  local be32 = bit.bswap -- Mach-O FAT is BE, supported archs are LE.
+
+  -- Create Mach-O object and fill in header.
+  local o = ffi.new(mobj)
+  local mach_size = aligned(ffi.offsetof(o, "space")+#symname+2, align)
+  local cputype = ({ x86={7}, x64={0x01000007}, arm={7,12,12,12} })[ctx.arch]
+  local cpusubtype = ({ x86={3}, x64={3}, arm={3,6,9,11} })[ctx.arch]
+  if isfat then
+    o.fat.magic = be32(0xcafebabe)
+    o.fat.nfat_arch = be32(#cpusubtype)
+  end
+
+  -- Fill in sections and symbols.
+  for i=0,#cpusubtype-1 do
+    local ofs = 0
+    if isfat then
+      local a = o.fat_arch[i]
+      a.cputype = be32(cputype[i+1])
+      a.cpusubtype = be32(cpusubtype[i+1])
+      -- Subsequent slices overlap each other to share data.
+      ofs = ffi.offsetof(o, "arch") + i*ffi.sizeof(o.arch[0])
+      a.offset = be32(ofs)
+      a.size = be32(mach_size-ofs+#s)
+    end
+    local a = o.arch[i]
+    a.hdr.magic = is64 and 0xfeedfacf or 0xfeedface
+    a.hdr.cputype = cputype[i+1]
+    a.hdr.cpusubtype = cpusubtype[i+1]
+    a.hdr.filetype = 1
+    a.hdr.ncmds = 2
+    a.hdr.sizeofcmds = ffi.sizeof(a.seg)+ffi.sizeof(a.sec)+ffi.sizeof(a.sym)
+    a.seg.cmd = is64 and 0x19 or 0x1
+    a.seg.cmdsize = ffi.sizeof(a.seg)+ffi.sizeof(a.sec)
+    a.seg.vmsize = #s
+    a.seg.fileoff = mach_size-ofs
+    a.seg.filesize = #s
+    a.seg.maxprot = 1
+    a.seg.initprot = 1
+    a.seg.nsects = 1
+    ffi.copy(a.sec.sectname, "__data")
+    ffi.copy(a.sec.segname, "__DATA")
+    a.sec.size = #s
+    a.sec.offset = mach_size-ofs
+    a.sym.cmd = 2
+    a.sym.cmdsize = ffi.sizeof(a.sym)
+    a.sym.symoff = ffi.offsetof(o, "sym_entry")-ofs
+    a.sym.nsyms = 1
+    a.sym.stroff = ffi.offsetof(o, "sym_entry")+ffi.sizeof(o.sym_entry)-ofs
+    a.sym.strsize = aligned(#symname+2, align)
+  end
+  o.sym_entry.type = 0xf
+  o.sym_entry.sect = 1
+  o.sym_entry.strx = 1
+  ffi.copy(o.space+1, symname)
+
+  -- Write Macho-O object file.
+  local fp = savefile(output, "wb")
+  fp:write(ffi.string(o, mach_size))
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_obj(ctx, output, s)
+  local ok, ffi = pcall(require, "ffi")
+  check(ok, "FFI library required to write this file type")
+  if ctx.os == "windows" then
+    return bcsave_peobj(ctx, output, s, ffi)
+  elseif ctx.os == "osx" then
+    return bcsave_machobj(ctx, output, s, ffi)
+  else
+    return bcsave_elfobj(ctx, output, s, ffi)
+  end
+end
+
+------------------------------------------------------------------------------
+
+local function bclist(input, output)
+  local f = readfile(input)
+  require("jit.bc").dump(f, savefile(output, "w"), true)
+end
+
+local function bcsave(ctx, input, output)
+  local f = readfile(input)
+  local s = string.dump(f, ctx.strip)
+  local t = ctx.type
+  if not t then
+    t = detecttype(output)
+    ctx.type = t
+  end
+  if t == "raw" then
+    bcsave_raw(output, s)
+  else
+    if not ctx.modname then ctx.modname = detectmodname(input) end
+    if t == "obj" then
+      bcsave_obj(ctx, output, s)
+    else
+      bcsave_c(ctx, output, s)
+    end
+  end
+end
+
+local function docmd(...)
+  local arg = {...}
+  local n = 1
+  local list = false
+  local ctx = {
+    strip = true, arch = jit.arch, os = string.lower(jit.os),
+    type = false, modname = false,
+  }
+  while n <= #arg do
+    local a = arg[n]
+    if type(a) == "string" and string.sub(a, 1, 1) == "-" and a ~= "-" then
+      table.remove(arg, n)
+      if a == "--" then break end
+      for m=2,#a do
+	local opt = string.sub(a, m, m)
+	if opt == "l" then
+	  list = true
+	elseif opt == "s" then
+	  ctx.strip = true
+	elseif opt == "g" then
+	  ctx.strip = false
+	else
+	  if arg[n] == nil or m ~= #a then usage() end
+	  if opt == "e" then
+	    if n ~= 1 then usage() end
+	    arg[1] = check(loadstring(arg[1]))
+	  elseif opt == "n" then
+	    ctx.modname = checkmodname(table.remove(arg, n))
+	  elseif opt == "t" then
+	    ctx.type = checkarg(table.remove(arg, n), map_type, "file type")
+	  elseif opt == "a" then
+	    ctx.arch = checkarg(table.remove(arg, n), map_arch, "architecture")
+	  elseif opt == "o" then
+	    ctx.os = checkarg(table.remove(arg, n), map_os, "OS name")
+	  else
+	    usage()
+	  end
+	end
+      end
+    else
+      n = n + 1
+    end
+  end
+  if list then
+    if #arg == 0 or #arg > 2 then usage() end
+    bclist(arg[1], arg[2] or "-")
+  else
+    if #arg ~= 2 then usage() end
+    bcsave(ctx, arg[1], arg[2])
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Public module functions.
+module(...)
+
+start = docmd -- Process -b command line option.
+
diff --git a/lib/luajit/src/jit/dis_arm.lua b/lib/luajit/src/jit/dis_arm.lua
new file mode 100644
index 00000000..b3d0ebc2
--- /dev/null
+++ b/lib/luajit/src/jit/dis_arm.lua
@@ -0,0 +1,689 @@
+----------------------------------------------------------------------------
+-- LuaJIT ARM disassembler module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles most user-mode ARMv7 instructions
+-- NYI: Advanced SIMD and VFP instructions.
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local concat = table.concat
+local bit = require("bit")
+local band, bor, ror, tohex = bit.band, bit.bor, bit.ror, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+
+------------------------------------------------------------------------------
+-- Opcode maps
+------------------------------------------------------------------------------
+
+local map_loadc = {
+  shift = 8, mask = 15,
+  [10] = {
+    shift = 20, mask = 1,
+    [0] = {
+      shift = 23, mask = 3,
+      [0] = "vmovFmDN", "vstmFNdr",
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vstrFdl",
+	{ shift = 16, mask = 15, [13] = "vpushFdr", _ = "vstmdbFNdr", }
+      },
+    },
+    {
+      shift = 23, mask = 3,
+      [0] = "vmovFDNm",
+      { shift = 16, mask = 15, [13] = "vpopFdr", _ = "vldmFNdr", },
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vldrFdl", "vldmdbFNdr",
+      },
+    },
+  },
+  [11] = {
+    shift = 20, mask = 1,
+    [0] = {
+      shift = 23, mask = 3,
+      [0] = "vmovGmDN", "vstmGNdr",
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vstrGdl",
+	{ shift = 16, mask = 15, [13] = "vpushGdr", _ = "vstmdbGNdr", }
+      },
+    },
+    {
+      shift = 23, mask = 3,
+      [0] = "vmovGDNm",
+      { shift = 16, mask = 15, [13] = "vpopGdr", _ = "vldmGNdr", },
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vldrGdl", "vldmdbGNdr",
+      },
+    },
+  },
+  _ = {
+    shift = 0, mask = 0 -- NYI ldc, mcrr, mrrc.
+  },
+}
+
+local map_vfps = {
+  shift = 6, mask = 0x2c001,
+  [0] = "vmlaF.dnm", "vmlsF.dnm",
+  [0x04000] = "vnmlsF.dnm", [0x04001] = "vnmlaF.dnm",
+  [0x08000] = "vmulF.dnm", [0x08001] = "vnmulF.dnm",
+  [0x0c000] = "vaddF.dnm", [0x0c001] = "vsubF.dnm",
+  [0x20000] = "vdivF.dnm",
+  [0x24000] = "vfnmsF.dnm", [0x24001] = "vfnmaF.dnm",
+  [0x28000] = "vfmaF.dnm", [0x28001] = "vfmsF.dnm",
+  [0x2c000] = "vmovF.dY",
+  [0x2c001] = {
+    shift = 7, mask = 0x1e01,
+    [0] = "vmovF.dm", "vabsF.dm",
+    [0x0200] = "vnegF.dm", [0x0201] = "vsqrtF.dm",
+    [0x0800] = "vcmpF.dm", [0x0801] = "vcmpeF.dm",
+    [0x0a00] = "vcmpzF.d", [0x0a01] = "vcmpzeF.d",
+    [0x0e01] = "vcvtG.dF.m",
+    [0x1000] = "vcvt.f32.u32Fdm", [0x1001] = "vcvt.f32.s32Fdm",
+    [0x1800] = "vcvtr.u32F.dm", [0x1801] = "vcvt.u32F.dm",
+    [0x1a00] = "vcvtr.s32F.dm", [0x1a01] = "vcvt.s32F.dm",
+  },
+}
+
+local map_vfpd = {
+  shift = 6, mask = 0x2c001,
+  [0] = "vmlaG.dnm", "vmlsG.dnm",
+  [0x04000] = "vnmlsG.dnm", [0x04001] = "vnmlaG.dnm",
+  [0x08000] = "vmulG.dnm", [0x08001] = "vnmulG.dnm",
+  [0x0c000] = "vaddG.dnm", [0x0c001] = "vsubG.dnm",
+  [0x20000] = "vdivG.dnm",
+  [0x24000] = "vfnmsG.dnm", [0x24001] = "vfnmaG.dnm",
+  [0x28000] = "vfmaG.dnm", [0x28001] = "vfmsG.dnm",
+  [0x2c000] = "vmovG.dY",
+  [0x2c001] = {
+    shift = 7, mask = 0x1e01,
+    [0] = "vmovG.dm", "vabsG.dm",
+    [0x0200] = "vnegG.dm", [0x0201] = "vsqrtG.dm",
+    [0x0800] = "vcmpG.dm", [0x0801] = "vcmpeG.dm",
+    [0x0a00] = "vcmpzG.d", [0x0a01] = "vcmpzeG.d",
+    [0x0e01] = "vcvtF.dG.m",
+    [0x1000] = "vcvt.f64.u32GdFm", [0x1001] = "vcvt.f64.s32GdFm",
+    [0x1800] = "vcvtr.u32FdG.m", [0x1801] = "vcvt.u32FdG.m",
+    [0x1a00] = "vcvtr.s32FdG.m", [0x1a01] = "vcvt.s32FdG.m",
+  },
+}
+
+local map_datac = {
+  shift = 24, mask = 1,
+  [0] = {
+    shift = 4, mask = 1,
+    [0] = {
+      shift = 8, mask = 15,
+      [10] = map_vfps,
+      [11] = map_vfpd,
+      -- NYI cdp, mcr, mrc.
+    },
+    {
+      shift = 8, mask = 15,
+      [10] = {
+	shift = 20, mask = 15,
+	[0] = "vmovFnD", "vmovFDn",
+	[14] = "vmsrD",
+	[15] = { shift = 12, mask = 15, [15] = "vmrs", _ = "vmrsD", },
+      },
+    },
+  },
+  "svcT",
+}
+
+local map_loadcu = {
+  shift = 0, mask = 0, -- NYI unconditional CP load/store.
+}
+
+local map_datacu = {
+  shift = 0, mask = 0, -- NYI unconditional CP data.
+}
+
+local map_simddata = {
+  shift = 0, mask = 0, -- NYI SIMD data.
+}
+
+local map_simdload = {
+  shift = 0, mask = 0, -- NYI SIMD load/store, preload.
+}
+
+local map_preload = {
+  shift = 0, mask = 0, -- NYI preload.
+}
+
+local map_media = {
+  shift = 20, mask = 31,
+  [0] = false,
+  { --01
+    shift = 5, mask = 7,
+    [0] = "sadd16DNM", "sasxDNM", "ssaxDNM", "ssub16DNM",
+    "sadd8DNM", false, false, "ssub8DNM",
+  },
+  { --02
+    shift = 5, mask = 7,
+    [0] = "qadd16DNM", "qasxDNM", "qsaxDNM", "qsub16DNM",
+    "qadd8DNM", false, false, "qsub8DNM",
+  },
+  { --03
+    shift = 5, mask = 7,
+    [0] = "shadd16DNM", "shasxDNM", "shsaxDNM", "shsub16DNM",
+    "shadd8DNM", false, false, "shsub8DNM",
+  },
+  false,
+  { --05
+    shift = 5, mask = 7,
+    [0] = "uadd16DNM", "uasxDNM", "usaxDNM", "usub16DNM",
+    "uadd8DNM", false, false, "usub8DNM",
+  },
+  { --06
+    shift = 5, mask = 7,
+    [0] = "uqadd16DNM", "uqasxDNM", "uqsaxDNM", "uqsub16DNM",
+    "uqadd8DNM", false, false, "uqsub8DNM",
+  },
+  { --07
+    shift = 5, mask = 7,
+    [0] = "uhadd16DNM", "uhasxDNM", "uhsaxDNM", "uhsub16DNM",
+    "uhadd8DNM", false, false, "uhsub8DNM",
+  },
+  { --08
+    shift = 5, mask = 7,
+    [0] = "pkhbtDNMU", false, "pkhtbDNMU",
+    { shift = 16, mask = 15, [15] = "sxtb16DMU", _ = "sxtab16DNMU", },
+    "pkhbtDNMU", "selDNM", "pkhtbDNMU",
+  },
+  false,
+  { --0a
+    shift = 5, mask = 7,
+    [0] = "ssatDxMu", "ssat16DxM", "ssatDxMu",
+    { shift = 16, mask = 15, [15] = "sxtbDMU", _ = "sxtabDNMU", },
+    "ssatDxMu", false, "ssatDxMu",
+  },
+  { --0b
+    shift = 5, mask = 7,
+    [0] = "ssatDxMu", "revDM", "ssatDxMu",
+    { shift = 16, mask = 15, [15] = "sxthDMU", _ = "sxtahDNMU", },
+    "ssatDxMu", "rev16DM", "ssatDxMu",
+  },
+  { --0c
+    shift = 5, mask = 7,
+    [3] = { shift = 16, mask = 15, [15] = "uxtb16DMU", _ = "uxtab16DNMU", },
+  },
+  false,
+  { --0e
+    shift = 5, mask = 7,
+    [0] = "usatDwMu", "usat16DwM", "usatDwMu",
+    { shift = 16, mask = 15, [15] = "uxtbDMU", _ = "uxtabDNMU", },
+    "usatDwMu", false, "usatDwMu",
+  },
+  { --0f
+    shift = 5, mask = 7,
+    [0] = "usatDwMu", "rbitDM", "usatDwMu",
+    { shift = 16, mask = 15, [15] = "uxthDMU", _ = "uxtahDNMU", },
+    "usatDwMu", "revshDM", "usatDwMu",
+  },
+  { --10
+    shift = 12, mask = 15,
+    [15] = {
+      shift = 5, mask = 7,
+      "smuadNMS", "smuadxNMS", "smusdNMS", "smusdxNMS",
+    },
+    _ = {
+      shift = 5, mask = 7,
+      [0] = "smladNMSD", "smladxNMSD", "smlsdNMSD", "smlsdxNMSD",
+    },
+  },
+  false, false, false,
+  { --14
+    shift = 5, mask = 7,
+    [0] = "smlaldDNMS", "smlaldxDNMS", "smlsldDNMS", "smlsldxDNMS",
+  },
+  { --15
+    shift = 5, mask = 7,
+    [0] = { shift = 12, mask = 15, [15] = "smmulNMS", _ = "smmlaNMSD", },
+    { shift = 12, mask = 15, [15] = "smmulrNMS", _ = "smmlarNMSD", },
+    false, false, false, false,
+    "smmlsNMSD", "smmlsrNMSD",
+  },
+  false, false,
+  { --18
+    shift = 5, mask = 7,
+    [0] = { shift = 12, mask = 15, [15] = "usad8NMS", _ = "usada8NMSD", },
+  },
+  false,
+  { --1a
+    shift = 5, mask = 3, [2] = "sbfxDMvw",
+  },
+  { --1b
+    shift = 5, mask = 3, [2] = "sbfxDMvw",
+  },
+  { --1c
+    shift = 5, mask = 3,
+    [0] = { shift = 0, mask = 15, [15] = "bfcDvX", _ = "bfiDMvX", },
+  },
+  { --1d
+    shift = 5, mask = 3,
+    [0] = { shift = 0, mask = 15, [15] = "bfcDvX", _ = "bfiDMvX", },
+  },
+  { --1e
+    shift = 5, mask = 3, [2] = "ubfxDMvw",
+  },
+  { --1f
+    shift = 5, mask = 3, [2] = "ubfxDMvw",
+  },
+}
+
+local map_load = {
+  shift = 21, mask = 9,
+  {
+    shift = 20, mask = 5,
+    [0] = "strtDL", "ldrtDL", [4] = "strbtDL", [5] = "ldrbtDL",
+  },
+  _ = {
+    shift = 20, mask = 5,
+    [0] = "strDL", "ldrDL", [4] = "strbDL", [5] = "ldrbDL",
+  }
+}
+
+local map_load1 = {
+  shift = 4, mask = 1,
+  [0] = map_load, map_media,
+}
+
+local map_loadm = {
+  shift = 20, mask = 1,
+  [0] = {
+    shift = 23, mask = 3,
+    [0] = "stmdaNR", "stmNR",
+    { shift = 16, mask = 63, [45] = "pushR", _ = "stmdbNR", }, "stmibNR",
+  },
+  {
+    shift = 23, mask = 3,
+    [0] = "ldmdaNR", { shift = 16, mask = 63, [61] = "popR", _ = "ldmNR", },
+    "ldmdbNR", "ldmibNR",
+  },
+}
+
+local map_data = {
+  shift = 21, mask = 15,
+  [0] = "andDNPs", "eorDNPs", "subDNPs", "rsbDNPs",
+  "addDNPs", "adcDNPs", "sbcDNPs", "rscDNPs",
+  "tstNP", "teqNP", "cmpNP", "cmnNP",
+  "orrDNPs", "movDPs", "bicDNPs", "mvnDPs",
+}
+
+local map_mul = {
+  shift = 21, mask = 7,
+  [0] = "mulNMSs", "mlaNMSDs", "umaalDNMS", "mlsDNMS",
+  "umullDNMSs", "umlalDNMSs", "smullDNMSs", "smlalDNMSs",
+}
+
+local map_sync = {
+  shift = 20, mask = 15, -- NYI: brackets around N. R(D+1) for ldrexd/strexd.
+  [0] = "swpDMN", false, false, false,
+  "swpbDMN", false, false, false,
+  "strexDMN", "ldrexDN", "strexdDN", "ldrexdDN",
+  "strexbDMN", "ldrexbDN", "strexhDN", "ldrexhDN",
+}
+
+local map_mulh = {
+  shift = 21, mask = 3,
+  [0] = { shift = 5, mask = 3,
+    [0] = "smlabbNMSD", "smlatbNMSD", "smlabtNMSD", "smlattNMSD", },
+  { shift = 5, mask = 3,
+    [0] = "smlawbNMSD", "smulwbNMS", "smlawtNMSD", "smulwtNMS", },
+  { shift = 5, mask = 3,
+    [0] = "smlalbbDNMS", "smlaltbDNMS", "smlalbtDNMS", "smlalttDNMS", },
+  { shift = 5, mask = 3,
+    [0] = "smulbbNMS", "smultbNMS", "smulbtNMS", "smulttNMS", },
+}
+
+local map_misc = {
+  shift = 4, mask = 7,
+  -- NYI: decode PSR bits of msr.
+  [0] = { shift = 21, mask = 1, [0] = "mrsD", "msrM", },
+  { shift = 21, mask = 3, "bxM", false, "clzDM", },
+  { shift = 21, mask = 3, "bxjM", },
+  { shift = 21, mask = 3, "blxM", },
+  false,
+  { shift = 21, mask = 3, [0] = "qaddDMN", "qsubDMN", "qdaddDMN", "qdsubDMN", },
+  false,
+  { shift = 21, mask = 3, "bkptK", },
+}
+
+local map_datar = {
+  shift = 4, mask = 9,
+  [9] = {
+    shift = 5, mask = 3,
+    [0] = { shift = 24, mask = 1, [0] = map_mul, map_sync, },
+    { shift = 20, mask = 1, [0] = "strhDL", "ldrhDL", },
+    { shift = 20, mask = 1, [0] = "ldrdDL", "ldrsbDL", },
+    { shift = 20, mask = 1, [0] = "strdDL", "ldrshDL", },
+  },
+  _ = {
+    shift = 20, mask = 25,
+    [16] = { shift = 7, mask = 1, [0] = map_misc, map_mulh, },
+    _ = {
+      shift = 0, mask = 0xffffffff,
+      [bor(0xe1a00000)] = "nop",
+      _ = map_data,
+    }
+  },
+}
+
+local map_datai = {
+  shift = 20, mask = 31, -- NYI: decode PSR bits of msr. Decode imm12.
+  [16] = "movwDW", [20] = "movtDW",
+  [18] = { shift = 0, mask = 0xf00ff, [0] = "nopv6", _ = "msrNW", },
+  [22] = "msrNW",
+  _ = map_data,
+}
+
+local map_branch = {
+  shift = 24, mask = 1,
+  [0] = "bB", "blB"
+}
+
+local map_condins = {
+  [0] = map_datar, map_datai, map_load, map_load1,
+  map_loadm, map_branch, map_loadc, map_datac
+}
+
+-- NYI: setend.
+local map_uncondins = {
+  [0] = false, map_simddata, map_simdload, map_preload,
+  false, "blxB", map_loadcu, map_datacu,
+}
+
+------------------------------------------------------------------------------
+
+local map_gpr = {
+  [0] = "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+  "r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc",
+}
+
+local map_cond = {
+  [0] = "eq", "ne", "hs", "lo", "mi", "pl", "vs", "vc",
+  "hi", "ls", "ge", "lt", "gt", "le", "al",
+}
+
+local map_shift = { [0] = "lsl", "lsr", "asr", "ror", }
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then
+      extra = "\t->"..sym
+    elseif band(ctx.op, 0x0e000000) ~= 0x0a000000 then
+      extra = "\t; 0x"..tohex(ctx.rel)
+    end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-5s %s%s\n",
+	    ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-5s %s%s\n",
+	    ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+-- Format operand 2 of load/store opcodes.
+local function fmtload(ctx, op, pos)
+  local base = map_gpr[band(rshift(op, 16), 15)]
+  local x, ofs
+  local ext = (band(op, 0x04000000) == 0)
+  if not ext and band(op, 0x02000000) == 0 then
+    ofs = band(op, 4095)
+    if band(op, 0x00800000) == 0 then ofs = -ofs end
+    if base == "pc" then ctx.rel = ctx.addr + pos + 8 + ofs end
+    ofs = "#"..ofs
+  elseif ext and band(op, 0x00400000) ~= 0 then
+    ofs = band(op, 15) + band(rshift(op, 4), 0xf0)
+    if band(op, 0x00800000) == 0 then ofs = -ofs end
+    if base == "pc" then ctx.rel = ctx.addr + pos + 8 + ofs end
+    ofs = "#"..ofs
+  else
+    ofs = map_gpr[band(op, 15)]
+    if ext or band(op, 0xfe0) == 0 then
+    elseif band(op, 0xfe0) == 0x60 then
+      ofs = format("%s, rrx", ofs)
+    else
+      local sh = band(rshift(op, 7), 31)
+      if sh == 0 then sh = 32 end
+      ofs = format("%s, %s #%d", ofs, map_shift[band(rshift(op, 5), 3)], sh)
+    end
+    if band(op, 0x00800000) == 0 then ofs = "-"..ofs end
+  end
+  if ofs == "#0" then
+    x = format("[%s]", base)
+  elseif band(op, 0x01000000) == 0 then
+    x = format("[%s], %s", base, ofs)
+  else
+    x = format("[%s, %s]", base, ofs)
+  end
+  if band(op, 0x01200000) == 0x01200000 then x = x.."!" end
+  return x
+end
+
+-- Format operand 2 of vector load/store opcodes.
+local function fmtvload(ctx, op, pos)
+  local base = map_gpr[band(rshift(op, 16), 15)]
+  local ofs = band(op, 255)*4
+  if band(op, 0x00800000) == 0 then ofs = -ofs end
+  if base == "pc" then ctx.rel = ctx.addr + pos + 8 + ofs end
+  if ofs == 0 then
+    return format("[%s]", base)
+  else
+    return format("[%s, #%d]", base, ofs)
+  end
+end
+
+local function fmtvr(op, vr, sh0, sh1)
+  if vr == "s" then
+    return format("s%d", 2*band(rshift(op, sh0), 15)+band(rshift(op, sh1), 1))
+  else
+    return format("d%d", band(rshift(op, sh0), 15)+band(rshift(op, sh1-4), 16))
+  end
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  local op = bor(lshift(b3, 24), lshift(b2, 16), lshift(b1, 8), b0)
+  local operands = {}
+  local suffix = ""
+  local last, name, pat
+  local vr
+  ctx.op = op
+  ctx.rel = nil
+
+  local cond = rshift(op, 28)
+  local opat
+  if cond == 15 then
+    opat = map_uncondins[band(rshift(op, 25), 7)]
+  else
+    if cond ~= 14 then suffix = map_cond[cond] end
+    opat = map_condins[band(rshift(op, 25), 7)]
+  end
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    opat = opat[band(rshift(op, opat.shift), opat.mask)] or opat._
+  end
+  name, pat = match(opat, "^([a-z0-9]*)(.*)")
+  if sub(pat, 1, 1) == "." then
+    local s2, p2 = match(pat, "^([a-z0-9.]*)(.*)")
+    suffix = suffix..s2
+    pat = p2
+  end
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "D" then
+      x = map_gpr[band(rshift(op, 12), 15)]
+    elseif p == "N" then
+      x = map_gpr[band(rshift(op, 16), 15)]
+    elseif p == "S" then
+      x = map_gpr[band(rshift(op, 8), 15)]
+    elseif p == "M" then
+      x = map_gpr[band(op, 15)]
+    elseif p == "d" then
+      x = fmtvr(op, vr, 12, 22)
+    elseif p == "n" then
+      x = fmtvr(op, vr, 16, 7)
+    elseif p == "m" then
+      x = fmtvr(op, vr, 0, 5)
+    elseif p == "P" then
+      if band(op, 0x02000000) ~= 0 then
+	x = ror(band(op, 255), 2*band(rshift(op, 8), 15))
+      else
+	x = map_gpr[band(op, 15)]
+	if band(op, 0xff0) ~= 0 then
+	  operands[#operands+1] = x
+	  local s = map_shift[band(rshift(op, 5), 3)]
+	  local r = nil
+	  if band(op, 0xf90) == 0 then
+	    if s == "ror" then s = "rrx" else r = "#32" end
+	  elseif band(op, 0x10) == 0 then
+	    r = "#"..band(rshift(op, 7), 31)
+	  else
+	    r = map_gpr[band(rshift(op, 8), 15)]
+	  end
+	  if name == "mov" then name = s; x = r
+	  elseif r then x = format("%s %s", s, r)
+	  else x = s end
+	end
+      end
+    elseif p == "L" then
+      x = fmtload(ctx, op, pos)
+    elseif p == "l" then
+      x = fmtvload(ctx, op, pos)
+    elseif p == "B" then
+      local addr = ctx.addr + pos + 8 + arshift(lshift(op, 8), 6)
+      if cond == 15 then addr = addr + band(rshift(op, 23), 2) end
+      ctx.rel = addr
+      x = "0x"..tohex(addr)
+    elseif p == "F" then
+      vr = "s"
+    elseif p == "G" then
+      vr = "d"
+    elseif p == "." then
+      suffix = suffix..(vr == "s" and ".f32" or ".f64")
+    elseif p == "R" then
+      if band(op, 0x00200000) ~= 0 and #operands == 1 then
+	operands[1] = operands[1].."!"
+      end
+      local t = {}
+      for i=0,15 do
+	if band(rshift(op, i), 1) == 1 then t[#t+1] = map_gpr[i] end
+      end
+      x = "{"..concat(t, ", ").."}"
+    elseif p == "r" then
+      if band(op, 0x00200000) ~= 0 and #operands == 2 then
+	operands[1] = operands[1].."!"
+      end
+      local s = tonumber(sub(last, 2))
+      local n = band(op, 255)
+      if vr == "d" then n = rshift(n, 1) end
+      operands[#operands] = format("{%s-%s%d}", last, vr, s+n-1)
+    elseif p == "W" then
+      x = band(op, 0x0fff) + band(rshift(op, 4), 0xf000)
+    elseif p == "T" then
+      x = "#0x"..tohex(band(op, 0x00ffffff), 6)
+    elseif p == "U" then
+      x = band(rshift(op, 7), 31)
+      if x == 0 then x = nil end
+    elseif p == "u" then
+      x = band(rshift(op, 7), 31)
+      if band(op, 0x40) == 0 then
+	if x == 0 then x = nil else x = "lsl #"..x end
+      else
+	if x == 0 then x = "asr #32" else x = "asr #"..x end
+      end
+    elseif p == "v" then
+      x = band(rshift(op, 7), 31)
+    elseif p == "w" then
+      x = band(rshift(op, 16), 31)
+    elseif p == "x" then
+      x = band(rshift(op, 16), 31) + 1
+    elseif p == "X" then
+      x = band(rshift(op, 16), 31) - last + 1
+    elseif p == "Y" then
+      x = band(rshift(op, 12), 0xf0) + band(op, 0x0f)
+    elseif p == "K" then
+      x = "#0x"..tohex(band(rshift(op, 4), 0x0000fff0) + band(op, 15), 4)
+    elseif p == "s" then
+      if band(op, 0x00100000) ~= 0 then suffix = "s"..suffix end
+    else
+      assert(false)
+    end
+    if x then
+      last = x
+      if type(x) == "number" then x = "#"..x end
+      operands[#operands+1] = x
+    end
+  end
+
+  return putop(ctx, name..suffix, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  ctx.pos = ofs
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create_(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass_(code, addr, out)
+  create_(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname_(r)
+  if r < 16 then return map_gpr[r] end
+  return "d"..(r-16)
+end
+
+-- Public module functions.
+module(...)
+
+create = create_
+disass = disass_
+regname = regname_
+
diff --git a/lib/luajit/src/jit/dis_mips.lua b/lib/luajit/src/jit/dis_mips.lua
new file mode 100644
index 00000000..47a7a83b
--- /dev/null
+++ b/lib/luajit/src/jit/dis_mips.lua
@@ -0,0 +1,428 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPS disassembler module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT/X license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles all standard MIPS32R1/R2 instructions.
+-- Default mode is big-endian, but see: dis_mipsel.lua
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local concat = table.concat
+local bit = require("bit")
+local band, bor, tohex = bit.band, bit.bor, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+
+------------------------------------------------------------------------------
+-- Primary and extended opcode maps
+------------------------------------------------------------------------------
+
+local map_movci = { shift = 16, mask = 1, [0] = "movfDSC", "movtDSC", }
+local map_srl = { shift = 21, mask = 1, [0] = "srlDTA", "rotrDTA", }
+local map_srlv = { shift = 6, mask = 1, [0] = "srlvDTS", "rotrvDTS", }
+
+local map_special = {
+  shift = 0, mask = 63,
+  [0] = { shift = 0, mask = -1, [0] = "nop", _ = "sllDTA" },
+  map_movci,	map_srl,	"sraDTA",
+  "sllvDTS",	false,		map_srlv,	"sravDTS",
+  "jrS",	"jalrD1S",	"movzDST",	"movnDST",
+  "syscallY",	"breakY",	false,		"sync",
+  "mfhiD",	"mthiS",	"mfloD",	"mtloS",
+  false,	false,		false,		false,
+  "multST",	"multuST",	"divST",	"divuST",
+  false,	false,		false,		false,
+  "addDST",	"addu|moveDST0", "subDST",	"subu|neguDS0T",
+  "andDST",	"orDST",	"xorDST",	"nor|notDST0",
+  false,	false,		"sltDST",	"sltuDST",
+  false,	false,		false,		false,
+  "tgeSTZ",	"tgeuSTZ",	"tltSTZ",	"tltuSTZ",
+  "teqSTZ",	false,		"tneSTZ",
+}
+
+local map_special2 = {
+  shift = 0, mask = 63,
+  [0] = "maddST", "madduST",	"mulDST",	false,
+  "msubST",	"msubuST",
+  [32] = "clzDS", [33] = "cloDS",
+  [63] = "sdbbpY",
+}
+
+local map_bshfl = {
+  shift = 6, mask = 31,
+  [2] = "wsbhDT",
+  [16] = "sebDT",
+  [24] = "sehDT",
+}
+
+local map_special3 = {
+  shift = 0, mask = 63,
+  [0] = "extTSAK", [4] = "insTSAL",
+  [32] = map_bshfl,
+  [59] = "rdhwrTD",
+}
+
+local map_regimm = {
+  shift = 16, mask = 31,
+  [0] = "bltzSB",	"bgezSB",	"bltzlSB",	"bgezlSB",
+  false,	false,		false,		false,
+  "tgeiSI",	"tgeiuSI",	"tltiSI",	"tltiuSI",
+  "teqiSI",	false,		"tneiSI",	false,
+  "bltzalSB",	"bgezalSB",	"bltzallSB",	"bgezallSB",
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		"synciSO",
+}
+
+local map_cop0 = {
+  shift = 25, mask = 1,
+  [0] = {
+    shift = 21, mask = 15,
+    [0] = "mfc0TDW", [4] = "mtc0TDW",
+    [10] = "rdpgprDT",
+    [11] = { shift = 5, mask = 1, [0] = "diT0", "eiT0", },
+    [14] = "wrpgprDT",
+  }, {
+    shift = 0, mask = 63,
+    [1] = "tlbr", [2] = "tlbwi", [6] = "tlbwr", [8] = "tlbp",
+    [24] = "eret", [31] = "deret",
+    [32] = "wait",
+  },
+}
+
+local map_cop1s = {
+  shift = 0, mask = 63,
+  [0] = "add.sFGH",	"sub.sFGH",	"mul.sFGH",	"div.sFGH",
+  "sqrt.sFG",		"abs.sFG",	"mov.sFG",	"neg.sFG",
+  "round.l.sFG",	"trunc.l.sFG",	"ceil.l.sFG",	"floor.l.sFG",
+  "round.w.sFG",	"trunc.w.sFG",	"ceil.w.sFG",	"floor.w.sFG",
+  false,
+  { shift = 16, mask = 1, [0] = "movf.sFGC", "movt.sFGC" },
+  "movz.sFGT",	"movn.sFGT",
+  false,	"recip.sFG",	"rsqrt.sFG",	false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	"cvt.d.sFG",	false,		false,
+  "cvt.w.sFG",	"cvt.l.sFG",	"cvt.ps.sFGH",	false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "c.f.sVGH",	"c.un.sVGH",	"c.eq.sVGH",	"c.ueq.sVGH",
+  "c.olt.sVGH",	"c.ult.sVGH",	"c.ole.sVGH",	"c.ule.sVGH",
+  "c.sf.sVGH",	"c.ngle.sVGH",	"c.seq.sVGH",	"c.ngl.sVGH",
+  "c.lt.sVGH",	"c.nge.sVGH",	"c.le.sVGH",	"c.ngt.sVGH",
+}
+
+local map_cop1d = {
+  shift = 0, mask = 63,
+  [0] = "add.dFGH",	"sub.dFGH",	"mul.dFGH",	"div.dFGH",
+  "sqrt.dFG",		"abs.dFG",	"mov.dFG",	"neg.dFG",
+  "round.l.dFG",	"trunc.l.dFG",	"ceil.l.dFG",	"floor.l.dFG",
+  "round.w.dFG",	"trunc.w.dFG",	"ceil.w.dFG",	"floor.w.dFG",
+  false,
+  { shift = 16, mask = 1, [0] = "movf.dFGC", "movt.dFGC" },
+  "movz.dFGT",	"movn.dFGT",
+  false,	"recip.dFG",	"rsqrt.dFG",	false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "cvt.s.dFG",	false,		false,		false,
+  "cvt.w.dFG",	"cvt.l.dFG",	false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "c.f.dVGH",	"c.un.dVGH",	"c.eq.dVGH",	"c.ueq.dVGH",
+  "c.olt.dVGH",	"c.ult.dVGH",	"c.ole.dVGH",	"c.ule.dVGH",
+  "c.df.dVGH",	"c.ngle.dVGH",	"c.deq.dVGH",	"c.ngl.dVGH",
+  "c.lt.dVGH",	"c.nge.dVGH",	"c.le.dVGH",	"c.ngt.dVGH",
+}
+
+local map_cop1ps = {
+  shift = 0, mask = 63,
+  [0] = "add.psFGH",	"sub.psFGH",	"mul.psFGH",	false,
+  false,		"abs.psFG",	"mov.psFG",	"neg.psFG",
+  false,		false,		false,		false,
+  false,		false,		false,		false,
+  false,
+  { shift = 16, mask = 1, [0] = "movf.psFGC", "movt.psFGC" },
+  "movz.psFGT",	"movn.psFGT",
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "cvt.s.puFG",	false,		false,		false,
+  false,	false,		false,		false,
+  "cvt.s.plFG",	false,		false,		false,
+  "pll.psFGH",	"plu.psFGH",	"pul.psFGH",	"puu.psFGH",
+  "c.f.psVGH",	"c.un.psVGH",	"c.eq.psVGH",	"c.ueq.psVGH",
+  "c.olt.psVGH", "c.ult.psVGH",	"c.ole.psVGH",	"c.ule.psVGH",
+  "c.psf.psVGH", "c.ngle.psVGH", "c.pseq.psVGH", "c.ngl.psVGH",
+  "c.lt.psVGH",	"c.nge.psVGH",	"c.le.psVGH",	"c.ngt.psVGH",
+}
+
+local map_cop1w = {
+  shift = 0, mask = 63,
+  [32] = "cvt.s.wFG", [33] = "cvt.d.wFG",
+}
+
+local map_cop1l = {
+  shift = 0, mask = 63,
+  [32] = "cvt.s.lFG", [33] = "cvt.d.lFG",
+}
+
+local map_cop1bc = {
+  shift = 16, mask = 3,
+  [0] = "bc1fCB", "bc1tCB",	"bc1flCB",	"bc1tlCB",
+}
+
+local map_cop1 = {
+  shift = 21, mask = 31,
+  [0] = "mfc1TG", false,	"cfc1TG",	"mfhc1TG",
+  "mtc1TG",	false,		"ctc1TG",	"mthc1TG",
+  map_cop1bc,	false,		false,		false,
+  false,	false,		false,		false,
+  map_cop1s,	map_cop1d,	false,		false,
+  map_cop1w,	map_cop1l,	map_cop1ps,
+}
+
+local map_cop1x = {
+  shift = 0, mask = 63,
+  [0] = "lwxc1FSX",	"ldxc1FSX",	false,		false,
+  false,	"luxc1FSX",	false,		false,
+  "swxc1FSX",	"sdxc1FSX",	false,		false,
+  false,	"suxc1FSX",	false,		"prefxMSX",
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		"alnv.psFGHS",	false,
+  "madd.sFRGH",	"madd.dFRGH",	false,		false,
+  false,	false,		"madd.psFRGH",	false,
+  "msub.sFRGH",	"msub.dFRGH",	false,		false,
+  false,	false,		"msub.psFRGH",	false,
+  "nmadd.sFRGH", "nmadd.dFRGH",	false,		false,
+  false,	false,		"nmadd.psFRGH",	false,
+  "nmsub.sFRGH", "nmsub.dFRGH",	false,		false,
+  false,	false,		"nmsub.psFRGH",	false,
+}
+
+local map_pri = {
+  [0] = map_special,	map_regimm,	"jJ",	"jalJ",
+  "beq|beqz|bST00B",	"bne|bnezST0B",		"blezSB",	"bgtzSB",
+  "addiTSI",	"addiu|liTS0I",	"sltiTSI",	"sltiuTSI",
+  "andiTSU",	"ori|liTS0U",	"xoriTSU",	"luiTU",
+  map_cop0,	map_cop1,	false,		map_cop1x,
+  "beql|beqzlST0B",	"bnel|bnezlST0B",	"blezlSB",	"bgtzlSB",
+  false,	false,		false,		false,
+  map_special2,	false,		false,		map_special3,
+  "lbTSO",	"lhTSO",	"lwlTSO",	"lwTSO",
+  "lbuTSO",	"lhuTSO",	"lwrTSO",	false,
+  "sbTSO",	"shTSO",	"swlTSO",	"swTSO",
+  false,	false,		"swrTSO",	"cacheNSO",
+  "llTSO",	"lwc1HSO",	"lwc2TSO",	"prefNSO",
+  false,	"ldc1HSO",	"ldc2TSO",	false,
+  "scTSO",	"swc1HSO",	"swc2TSO",	false,
+  false,	"sdc1HSO",	"sdc2TSO",	false,
+}
+
+------------------------------------------------------------------------------
+
+local map_gpr = {
+  [0] = "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+  "r24", "r25", "r26", "r27", "r28", "sp", "r30", "ra",
+}
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then extra = "\t->"..sym end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-7s %s%s\n",
+	    ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-7s %s%s\n",
+	    ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+local function get_be(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  return bor(lshift(b0, 24), lshift(b1, 16), lshift(b2, 8), b3)
+end
+
+local function get_le(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  return bor(lshift(b3, 24), lshift(b2, 16), lshift(b1, 8), b0)
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local op = ctx:get()
+  local operands = {}
+  local last = nil
+  ctx.op = op
+  ctx.rel = nil
+
+  local opat = map_pri[rshift(op, 26)]
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    opat = opat[band(rshift(op, opat.shift), opat.mask)] or opat._
+  end
+  local name, pat = match(opat, "^([a-z0-9_.]*)(.*)")
+  local altname, pat2 = match(pat, "|([a-z0-9_.|]*)(.*)")
+  if altname then pat = pat2 end
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "S" then
+      x = map_gpr[band(rshift(op, 21), 31)]
+    elseif p == "T" then
+      x = map_gpr[band(rshift(op, 16), 31)]
+    elseif p == "D" then
+      x = map_gpr[band(rshift(op, 11), 31)]
+    elseif p == "F" then
+      x = "f"..band(rshift(op, 6), 31)
+    elseif p == "G" then
+      x = "f"..band(rshift(op, 11), 31)
+    elseif p == "H" then
+      x = "f"..band(rshift(op, 16), 31)
+    elseif p == "R" then
+      x = "f"..band(rshift(op, 21), 31)
+    elseif p == "A" then
+      x = band(rshift(op, 6), 31)
+    elseif p == "M" then
+      x = band(rshift(op, 11), 31)
+    elseif p == "N" then
+      x = band(rshift(op, 16), 31)
+    elseif p == "C" then
+      x = band(rshift(op, 18), 7)
+      if x == 0 then x = nil end
+    elseif p == "K" then
+      x = band(rshift(op, 11), 31) + 1
+    elseif p == "L" then
+      x = band(rshift(op, 11), 31) - last + 1
+    elseif p == "I" then
+      x = arshift(lshift(op, 16), 16)
+    elseif p == "U" then
+      x = band(op, 0xffff)
+    elseif p == "O" then
+      local disp = arshift(lshift(op, 16), 16)
+      operands[#operands] = format("%d(%s)", disp, last)
+    elseif p == "X" then
+      local index = map_gpr[band(rshift(op, 16), 31)]
+      operands[#operands] = format("%s(%s)", index, last)
+    elseif p == "B" then
+      x = ctx.addr + ctx.pos + arshift(lshift(op, 16), 16)*4 + 4
+      ctx.rel = x
+      x = "0x"..tohex(x)
+    elseif p == "J" then
+      x = band(ctx.addr + ctx.pos, 0xf0000000) + band(op, 0x03ffffff)*4
+      ctx.rel = x
+      x = "0x"..tohex(x)
+    elseif p == "V" then
+      x = band(rshift(op, 8), 7)
+      if x == 0 then x = nil end
+    elseif p == "W" then
+      x = band(op, 7)
+      if x == 0 then x = nil end
+    elseif p == "Y" then
+      x = band(rshift(op, 6), 0x000fffff)
+      if x == 0 then x = nil end
+    elseif p == "Z" then
+      x = band(rshift(op, 6), 1023)
+      if x == 0 then x = nil end
+    elseif p == "0" then
+      if last == "r0" or last == 0 then
+	local n = #operands
+	operands[n] = nil
+	last = operands[n-1]
+	if altname then
+	  local a1, a2 = match(altname, "([^|]*)|(.*)")
+	  if a1 then name, altname = a1, a2
+	  else name = altname end
+	end
+      end
+    elseif p == "1" then
+      if last == "ra" then
+	operands[#operands] = nil
+      end
+    else
+      assert(false)
+    end
+    if x then operands[#operands+1] = x; last = x end
+  end
+
+  return putop(ctx, name, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  stop = stop - stop % 4
+  ctx.pos = ofs - ofs % 4
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create_(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  ctx.get = get_be
+  return ctx
+end
+
+local function create_el_(code, addr, out)
+  local ctx = create_(code, addr, out)
+  ctx.get = get_le
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass_(code, addr, out)
+  create_(code, addr, out):disass()
+end
+
+local function disass_el_(code, addr, out)
+  create_el_(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname_(r)
+  if r < 32 then return map_gpr[r] end
+  return "f"..(r-32)
+end
+
+-- Public module functions.
+module(...)
+
+create = create_
+create_el = create_el_
+disass = disass_
+disass_el = disass_el_
+regname = regname_
+
diff --git a/lib/luajit/src/jit/dis_mipsel.lua b/lib/luajit/src/jit/dis_mipsel.lua
new file mode 100644
index 00000000..d19de319
--- /dev/null
+++ b/lib/luajit/src/jit/dis_mipsel.lua
@@ -0,0 +1,20 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPSEL disassembler wrapper module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the little-endian functions from the
+-- MIPS disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local require = require
+
+module(...)
+
+local dis_mips = require(_PACKAGE.."dis_mips")
+
+create = dis_mips.create_el
+disass = dis_mips.disass_el
+regname = dis_mips.regname
+
diff --git a/lib/luajit/src/jit/dis_ppc.lua b/lib/luajit/src/jit/dis_ppc.lua
new file mode 100644
index 00000000..cfaf982f
--- /dev/null
+++ b/lib/luajit/src/jit/dis_ppc.lua
@@ -0,0 +1,591 @@
+----------------------------------------------------------------------------
+-- LuaJIT PPC disassembler module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT/X license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles all common, non-privileged 32/64 bit PowerPC instructions
+-- plus the e500 SPE instructions and some Cell/Xenon extensions.
+--
+-- NYI: VMX, VMX128
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local concat = table.concat
+local bit = require("bit")
+local band, bor, tohex = bit.band, bit.bor, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+
+------------------------------------------------------------------------------
+-- Primary and extended opcode maps
+------------------------------------------------------------------------------
+
+local map_crops = {
+  shift = 1, mask = 1023,
+  [0] = "mcrfXX",
+  [33] = "crnor|crnotCCC=", [129] = "crandcCCC",
+  [193] = "crxor|crclrCCC%", [225] = "crnandCCC",
+  [257] = "crandCCC", [289] = "creqv|crsetCCC%",
+  [417] = "crorcCCC", [449] = "cror|crmoveCCC=",
+  [16] = "b_lrKB", [528] = "b_ctrKB",
+  [150] = "isync",
+}
+
+local map_rlwinm = setmetatable({
+  shift = 0, mask = -1,
+},
+{ __index = function(t, x)
+    local rot = band(rshift(x, 11), 31)
+    local mb = band(rshift(x, 6), 31)
+    local me = band(rshift(x, 1), 31)
+    if mb == 0 and me == 31-rot then
+      return "slwiRR~A."
+    elseif me == 31 and mb == 32-rot then
+      return "srwiRR~-A."
+    else
+      return "rlwinmRR~AAA."
+    end
+  end
+})
+
+local map_rld = {
+  shift = 2, mask = 7,
+  [0] = "rldiclRR~HM.", "rldicrRR~HM.", "rldicRR~HM.", "rldimiRR~HM.",
+  {
+    shift = 1, mask = 1,
+    [0] = "rldclRR~RM.", "rldcrRR~RM.",
+  },
+}
+
+local map_ext = setmetatable({
+  shift = 1, mask = 1023,
+
+  [0] = "cmp_YLRR", [32] = "cmpl_YLRR",
+  [4] = "twARR", [68] = "tdARR",
+
+  [8] = "subfcRRR.", [40] = "subfRRR.",
+  [104] = "negRR.", [136] = "subfeRRR.",
+  [200] = "subfzeRR.", [232] = "subfmeRR.",
+  [520] = "subfcoRRR.", [552] = "subfoRRR.",
+  [616] = "negoRR.", [648] = "subfeoRRR.",
+  [712] = "subfzeoRR.", [744] = "subfmeoRR.",
+
+  [9] = "mulhduRRR.", [73] = "mulhdRRR.", [233] = "mulldRRR.",
+  [457] = "divduRRR.", [489] = "divdRRR.",
+  [745] = "mulldoRRR.",
+  [969] = "divduoRRR.", [1001] = "divdoRRR.",
+
+  [10] = "addcRRR.", [138] = "addeRRR.",
+  [202] = "addzeRR.", [234] = "addmeRR.", [266] = "addRRR.",
+  [522] = "addcoRRR.", [650] = "addeoRRR.",
+  [714] = "addzeoRR.", [746] = "addmeoRR.", [778] = "addoRRR.",
+
+  [11] = "mulhwuRRR.", [75] = "mulhwRRR.", [235] = "mullwRRR.",
+  [459] = "divwuRRR.", [491] = "divwRRR.",
+  [747] = "mullwoRRR.",
+  [971] = "divwouRRR.", [1003] = "divwoRRR.",
+
+  [15] = "iselltRRR", [47] = "iselgtRRR", [79] = "iseleqRRR",
+
+  [144] = { shift = 20, mask = 1, [0] = "mtcrfRZ~", "mtocrfRZ~", },
+  [19] = { shift = 20, mask = 1, [0] = "mfcrR", "mfocrfRZ", },
+  [371] = { shift = 11, mask = 1023, [392] = "mftbR", [424] = "mftbuR", },
+  [339] = {
+    shift = 11, mask = 1023,
+    [32] = "mferR", [256] = "mflrR", [288] = "mfctrR", [16] = "mfspefscrR",
+  },
+  [467] = {
+    shift = 11, mask = 1023,
+    [32] = "mtxerR", [256] = "mtlrR", [288] = "mtctrR", [16] = "mtspefscrR",
+  },
+
+  [20] = "lwarxRR0R", [84] = "ldarxRR0R",
+
+  [21] = "ldxRR0R", [53] = "lduxRRR",
+  [149] = "stdxRR0R", [181] = "stduxRRR",
+  [341] = "lwaxRR0R", [373] = "lwauxRRR",
+
+  [23] = "lwzxRR0R", [55] = "lwzuxRRR",
+  [87] = "lbzxRR0R", [119] = "lbzuxRRR",
+  [151] = "stwxRR0R", [183] = "stwuxRRR",
+  [215] = "stbxRR0R", [247] = "stbuxRRR",
+  [279] = "lhzxRR0R", [311] = "lhzuxRRR",
+  [343] = "lhaxRR0R", [375] = "lhauxRRR",
+  [407] = "sthxRR0R", [439] = "sthuxRRR",
+
+  [54] = "dcbst-R0R", [86] = "dcbf-R0R",
+  [150] = "stwcxRR0R.", [214] = "stdcxRR0R.",
+  [246] = "dcbtst-R0R", [278] = "dcbt-R0R",
+  [310] = "eciwxRR0R", [438] = "ecowxRR0R",
+  [470] = "dcbi-RR",
+
+  [598] = {
+    shift = 21, mask = 3,
+    [0] = "sync", "lwsync", "ptesync",
+  },
+  [758] = "dcba-RR",
+  [854] = "eieio", [982] = "icbi-R0R", [1014] = "dcbz-R0R",
+
+  [26] = "cntlzwRR~", [58] = "cntlzdRR~",
+  [122] = "popcntbRR~",
+  [154] = "prtywRR~", [186] = "prtydRR~",
+
+  [28] = "andRR~R.", [60] = "andcRR~R.", [124] = "nor|notRR~R=.",
+  [284] = "eqvRR~R.", [316] = "xorRR~R.",
+  [412] = "orcRR~R.", [444] = "or|mrRR~R=.", [476] = "nandRR~R.",
+  [508] = "cmpbRR~R",
+
+  [512] = "mcrxrX",
+
+  [532] = "ldbrxRR0R", [660] = "stdbrxRR0R",
+
+  [533] = "lswxRR0R", [597] = "lswiRR0A",
+  [661] = "stswxRR0R", [725] = "stswiRR0A",
+
+  [534] = "lwbrxRR0R", [662] = "stwbrxRR0R",
+  [790] = "lhbrxRR0R", [918] = "sthbrxRR0R",
+
+  [535] = "lfsxFR0R", [567] = "lfsuxFRR",
+  [599] = "lfdxFR0R", [631] = "lfduxFRR",
+  [663] = "stfsxFR0R", [695] = "stfsuxFRR",
+  [727] = "stfdxFR0R", [759] = "stfduxFR0R",
+  [855] = "lfiwaxFR0R",
+  [983] = "stfiwxFR0R",
+
+  [24] = "slwRR~R.",
+
+  [27] = "sldRR~R.", [536] = "srwRR~R.",
+  [792] = "srawRR~R.", [824] = "srawiRR~A.",
+
+  [794] = "sradRR~R.", [826] = "sradiRR~H.", [827] = "sradiRR~H.",
+  [922] = "extshRR~.", [954] = "extsbRR~.", [986] = "extswRR~.",
+
+  [539] = "srdRR~R.",
+},
+{ __index = function(t, x)
+    if band(x, 31) == 15 then return "iselRRRC" end
+  end
+})
+
+local map_ld = {
+  shift = 0, mask = 3,
+  [0] = "ldRRE", "lduRRE", "lwaRRE",
+}
+
+local map_std = {
+  shift = 0, mask = 3,
+  [0] = "stdRRE", "stduRRE",
+}
+
+local map_fps = {
+  shift = 5, mask = 1,
+  {
+    shift = 1, mask = 15,
+    [0] = false, false, "fdivsFFF.", false,
+    "fsubsFFF.", "faddsFFF.", "fsqrtsF-F.", false,
+    "fresF-F.", "fmulsFF-F.", "frsqrtesF-F.", false,
+    "fmsubsFFFF~.", "fmaddsFFFF~.", "fnmsubsFFFF~.", "fnmaddsFFFF~.",
+  }
+}
+
+local map_fpd = {
+  shift = 5, mask = 1,
+  [0] = {
+    shift = 1, mask = 1023,
+    [0] = "fcmpuXFF", [32] = "fcmpoXFF", [64] = "mcrfsXX",
+    [38] = "mtfsb1A.", [70] = "mtfsb0A.", [134] = "mtfsfiA>>-A>",
+    [8] = "fcpsgnFFF.", [40] = "fnegF-F.", [72] = "fmrF-F.",
+    [136] = "fnabsF-F.", [264] = "fabsF-F.",
+    [12] = "frspF-F.",
+    [14] = "fctiwF-F.", [15] = "fctiwzF-F.",
+    [583] = "mffsF.", [711] = "mtfsfZF.",
+    [392] = "frinF-F.", [424] = "frizF-F.",
+    [456] = "fripF-F.", [488] = "frimF-F.",
+    [814] = "fctidF-F.", [815] = "fctidzF-F.", [846] = "fcfidF-F.",
+  },
+  {
+    shift = 1, mask = 15,
+    [0] = false, false, "fdivFFF.", false,
+    "fsubFFF.", "faddFFF.", "fsqrtF-F.", "fselFFFF~.",
+    "freF-F.", "fmulFF-F.", "frsqrteF-F.", false,
+    "fmsubFFFF~.", "fmaddFFFF~.", "fnmsubFFFF~.", "fnmaddFFFF~.",
+  }
+}
+
+local map_spe = {
+  shift = 0, mask = 2047,
+
+  [512] = "evaddwRRR", [514] = "evaddiwRAR~",
+  [516] = "evsubwRRR~", [518] = "evsubiwRAR~",
+  [520] = "evabsRR", [521] = "evnegRR",
+  [522] = "evextsbRR", [523] = "evextshRR", [524] = "evrndwRR",
+  [525] = "evcntlzwRR", [526] = "evcntlswRR",
+
+  [527] = "brincRRR",
+
+  [529] = "evandRRR", [530] = "evandcRRR", [534] = "evxorRRR",
+  [535] = "evor|evmrRRR=", [536] = "evnor|evnotRRR=",
+  [537] = "eveqvRRR", [539] = "evorcRRR", [542] = "evnandRRR",
+
+  [544] = "evsrwuRRR", [545] = "evsrwsRRR",
+  [546] = "evsrwiuRRA", [547] = "evsrwisRRA",
+  [548] = "evslwRRR", [550] = "evslwiRRA",
+  [552] = "evrlwRRR", [553] = "evsplatiRS",
+  [554] = "evrlwiRRA", [555] = "evsplatfiRS",
+  [556] = "evmergehiRRR", [557] = "evmergeloRRR",
+  [558] = "evmergehiloRRR", [559] = "evmergelohiRRR",
+
+  [560] = "evcmpgtuYRR", [561] = "evcmpgtsYRR",
+  [562] = "evcmpltuYRR", [563] = "evcmpltsYRR",
+  [564] = "evcmpeqYRR",
+
+  [632] = "evselRRR", [633] = "evselRRRW",
+  [634] = "evselRRRW", [635] = "evselRRRW",
+  [636] = "evselRRRW", [637] = "evselRRRW",
+  [638] = "evselRRRW", [639] = "evselRRRW",
+
+  [640] = "evfsaddRRR", [641] = "evfssubRRR",
+  [644] = "evfsabsRR", [645] = "evfsnabsRR", [646] = "evfsnegRR",
+  [648] = "evfsmulRRR", [649] = "evfsdivRRR",
+  [652] = "evfscmpgtYRR", [653] = "evfscmpltYRR", [654] = "evfscmpeqYRR",
+  [656] = "evfscfuiR-R", [657] = "evfscfsiR-R",
+  [658] = "evfscfufR-R", [659] = "evfscfsfR-R",
+  [660] = "evfsctuiR-R", [661] = "evfsctsiR-R",
+  [662] = "evfsctufR-R", [663] = "evfsctsfR-R",
+  [664] = "evfsctuizR-R", [666] = "evfsctsizR-R",
+  [668] = "evfststgtYRR", [669] = "evfststltYRR", [670] = "evfststeqYRR",
+
+  [704] = "efsaddRRR", [705] = "efssubRRR",
+  [708] = "efsabsRR", [709] = "efsnabsRR", [710] = "efsnegRR",
+  [712] = "efsmulRRR", [713] = "efsdivRRR",
+  [716] = "efscmpgtYRR", [717] = "efscmpltYRR", [718] = "efscmpeqYRR",
+  [719] = "efscfdR-R",
+  [720] = "efscfuiR-R", [721] = "efscfsiR-R",
+  [722] = "efscfufR-R", [723] = "efscfsfR-R",
+  [724] = "efsctuiR-R", [725] = "efsctsiR-R",
+  [726] = "efsctufR-R", [727] = "efsctsfR-R",
+  [728] = "efsctuizR-R", [730] = "efsctsizR-R",
+  [732] = "efststgtYRR", [733] = "efststltYRR", [734] = "efststeqYRR",
+
+  [736] = "efdaddRRR", [737] = "efdsubRRR",
+  [738] = "efdcfuidR-R", [739] = "efdcfsidR-R",
+  [740] = "efdabsRR", [741] = "efdnabsRR", [742] = "efdnegRR",
+  [744] = "efdmulRRR", [745] = "efddivRRR",
+  [746] = "efdctuidzR-R", [747] = "efdctsidzR-R",
+  [748] = "efdcmpgtYRR", [749] = "efdcmpltYRR", [750] = "efdcmpeqYRR",
+  [751] = "efdcfsR-R",
+  [752] = "efdcfuiR-R", [753] = "efdcfsiR-R",
+  [754] = "efdcfufR-R", [755] = "efdcfsfR-R",
+  [756] = "efdctuiR-R", [757] = "efdctsiR-R",
+  [758] = "efdctufR-R", [759] = "efdctsfR-R",
+  [760] = "efdctuizR-R", [762] = "efdctsizR-R",
+  [764] = "efdtstgtYRR", [765] = "efdtstltYRR", [766] = "efdtsteqYRR",
+
+  [768] = "evlddxRR0R", [769] = "evlddRR8",
+  [770] = "evldwxRR0R", [771] = "evldwRR8",
+  [772] = "evldhxRR0R", [773] = "evldhRR8",
+  [776] = "evlhhesplatxRR0R", [777] = "evlhhesplatRR2",
+  [780] = "evlhhousplatxRR0R", [781] = "evlhhousplatRR2",
+  [782] = "evlhhossplatxRR0R", [783] = "evlhhossplatRR2",
+  [784] = "evlwhexRR0R", [785] = "evlwheRR4",
+  [788] = "evlwhouxRR0R", [789] = "evlwhouRR4",
+  [790] = "evlwhosxRR0R", [791] = "evlwhosRR4",
+  [792] = "evlwwsplatxRR0R", [793] = "evlwwsplatRR4",
+  [796] = "evlwhsplatxRR0R", [797] = "evlwhsplatRR4",
+
+  [800] = "evstddxRR0R", [801] = "evstddRR8",
+  [802] = "evstdwxRR0R", [803] = "evstdwRR8",
+  [804] = "evstdhxRR0R", [805] = "evstdhRR8",
+  [816] = "evstwhexRR0R", [817] = "evstwheRR4",
+  [820] = "evstwhoxRR0R", [821] = "evstwhoRR4",
+  [824] = "evstwwexRR0R", [825] = "evstwweRR4",
+  [828] = "evstwwoxRR0R", [829] = "evstwwoRR4",
+
+  [1027] = "evmhessfRRR", [1031] = "evmhossfRRR", [1032] = "evmheumiRRR",
+  [1033] = "evmhesmiRRR", [1035] = "evmhesmfRRR", [1036] = "evmhoumiRRR",
+  [1037] = "evmhosmiRRR", [1039] = "evmhosmfRRR", [1059] = "evmhessfaRRR",
+  [1063] = "evmhossfaRRR", [1064] = "evmheumiaRRR", [1065] = "evmhesmiaRRR",
+  [1067] = "evmhesmfaRRR", [1068] = "evmhoumiaRRR", [1069] = "evmhosmiaRRR",
+  [1071] = "evmhosmfaRRR", [1095] = "evmwhssfRRR", [1096] = "evmwlumiRRR",
+  [1100] = "evmwhumiRRR", [1101] = "evmwhsmiRRR", [1103] = "evmwhsmfRRR",
+  [1107] = "evmwssfRRR", [1112] = "evmwumiRRR", [1113] = "evmwsmiRRR",
+  [1115] = "evmwsmfRRR", [1127] = "evmwhssfaRRR", [1128] = "evmwlumiaRRR",
+  [1132] = "evmwhumiaRRR", [1133] = "evmwhsmiaRRR", [1135] = "evmwhsmfaRRR",
+  [1139] = "evmwssfaRRR", [1144] = "evmwumiaRRR", [1145] = "evmwsmiaRRR",
+  [1147] = "evmwsmfaRRR",
+
+  [1216] = "evaddusiaawRR", [1217] = "evaddssiaawRR",
+  [1218] = "evsubfusiaawRR", [1219] = "evsubfssiaawRR",
+  [1220] = "evmraRR",
+  [1222] = "evdivwsRRR", [1223] = "evdivwuRRR",
+  [1224] = "evaddumiaawRR", [1225] = "evaddsmiaawRR",
+  [1226] = "evsubfumiaawRR", [1227] = "evsubfsmiaawRR",
+
+  [1280] = "evmheusiaawRRR", [1281] = "evmhessiaawRRR",
+  [1283] = "evmhessfaawRRR", [1284] = "evmhousiaawRRR",
+  [1285] = "evmhossiaawRRR", [1287] = "evmhossfaawRRR",
+  [1288] = "evmheumiaawRRR", [1289] = "evmhesmiaawRRR",
+  [1291] = "evmhesmfaawRRR", [1292] = "evmhoumiaawRRR",
+  [1293] = "evmhosmiaawRRR", [1295] = "evmhosmfaawRRR",
+  [1320] = "evmhegumiaaRRR", [1321] = "evmhegsmiaaRRR",
+  [1323] = "evmhegsmfaaRRR", [1324] = "evmhogumiaaRRR",
+  [1325] = "evmhogsmiaaRRR", [1327] = "evmhogsmfaaRRR",
+  [1344] = "evmwlusiaawRRR", [1345] = "evmwlssiaawRRR",
+  [1352] = "evmwlumiaawRRR", [1353] = "evmwlsmiaawRRR",
+  [1363] = "evmwssfaaRRR", [1368] = "evmwumiaaRRR",
+  [1369] = "evmwsmiaaRRR", [1371] = "evmwsmfaaRRR",
+  [1408] = "evmheusianwRRR", [1409] = "evmhessianwRRR",
+  [1411] = "evmhessfanwRRR", [1412] = "evmhousianwRRR",
+  [1413] = "evmhossianwRRR", [1415] = "evmhossfanwRRR",
+  [1416] = "evmheumianwRRR", [1417] = "evmhesmianwRRR",
+  [1419] = "evmhesmfanwRRR", [1420] = "evmhoumianwRRR",
+  [1421] = "evmhosmianwRRR", [1423] = "evmhosmfanwRRR",
+  [1448] = "evmhegumianRRR", [1449] = "evmhegsmianRRR",
+  [1451] = "evmhegsmfanRRR", [1452] = "evmhogumianRRR",
+  [1453] = "evmhogsmianRRR", [1455] = "evmhogsmfanRRR",
+  [1472] = "evmwlusianwRRR", [1473] = "evmwlssianwRRR",
+  [1480] = "evmwlumianwRRR", [1481] = "evmwlsmianwRRR",
+  [1491] = "evmwssfanRRR", [1496] = "evmwumianRRR",
+  [1497] = "evmwsmianRRR", [1499] = "evmwsmfanRRR",
+}
+
+local map_pri = {
+  [0] = false,	false,		"tdiARI",	"twiARI",
+  map_spe,	false,		false,		"mulliRRI",
+  "subficRRI",	false,		"cmpl_iYLRU",	"cmp_iYLRI",
+  "addicRRI",	"addic.RRI",	"addi|liRR0I",	"addis|lisRR0I",
+  "b_KBJ",	"sc",		 "bKJ",		map_crops,
+  "rlwimiRR~AAA.", map_rlwinm,	false,		"rlwnmRR~RAA.",
+  "oriNRR~U",	"orisRR~U",	"xoriRR~U",	"xorisRR~U",
+  "andi.RR~U",	"andis.RR~U",	map_rld,	map_ext,
+  "lwzRRD",	"lwzuRRD",	"lbzRRD",	"lbzuRRD",
+  "stwRRD",	"stwuRRD",	"stbRRD",	"stbuRRD",
+  "lhzRRD",	"lhzuRRD",	"lhaRRD",	"lhauRRD",
+  "sthRRD",	"sthuRRD",	"lmwRRD",	"stmwRRD",
+  "lfsFRD",	"lfsuFRD",	"lfdFRD",	"lfduFRD",
+  "stfsFRD",	"stfsuFRD",	"stfdFRD",	"stfduFRD",
+  false,	false,		map_ld,		map_fps,
+  false,	false,		map_std,	map_fpd,
+}
+
+------------------------------------------------------------------------------
+
+local map_gpr = {
+  [0] = "r0", "sp", "r2", "r3", "r4", "r5", "r6", "r7",
+  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+}
+
+local map_cond = { [0] = "lt", "gt", "eq", "so", "ge", "le", "ne", "ns", }
+
+-- Format a condition bit.
+local function condfmt(cond)
+  if cond <= 3 then
+    return map_cond[band(cond, 3)]
+  else
+    return format("4*cr%d+%s", rshift(cond, 2), map_cond[band(cond, 3)])
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then extra = "\t->"..sym end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-7s %s%s\n",
+	    ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-7s %s%s\n",
+	    ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  local op = bor(lshift(b0, 24), lshift(b1, 16), lshift(b2, 8), b3)
+  local operands = {}
+  local last = nil
+  local rs = 21
+  ctx.op = op
+  ctx.rel = nil
+
+  local opat = map_pri[rshift(b0, 2)]
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    opat = opat[band(rshift(op, opat.shift), opat.mask)]
+  end
+  local name, pat = match(opat, "^([a-z0-9_.]*)(.*)")
+  local altname, pat2 = match(pat, "|([a-z0-9_.]*)(.*)")
+  if altname then pat = pat2 end
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "R" then
+      x = map_gpr[band(rshift(op, rs), 31)]
+      rs = rs - 5
+    elseif p == "F" then
+      x = "f"..band(rshift(op, rs), 31)
+      rs = rs - 5
+    elseif p == "A" then
+      x = band(rshift(op, rs), 31)
+      rs = rs - 5
+    elseif p == "S" then
+      x = arshift(lshift(op, 27-rs), 27)
+      rs = rs - 5
+    elseif p == "I" then
+      x = arshift(lshift(op, 16), 16)
+    elseif p == "U" then
+      x = band(op, 0xffff)
+    elseif p == "D" or p == "E" then
+      local disp = arshift(lshift(op, 16), 16)
+      if p == "E" then disp = band(disp, -4) end
+      if last == "r0" then last = "0" end
+      operands[#operands] = format("%d(%s)", disp, last)
+    elseif p >= "2" and p <= "8" then
+      local disp = band(rshift(op, rs), 31) * p
+      if last == "r0" then last = "0" end
+      operands[#operands] = format("%d(%s)", disp, last)
+    elseif p == "H" then
+      x = band(rshift(op, rs), 31) + lshift(band(op, 2), 4)
+      rs = rs - 5
+    elseif p == "M" then
+      x = band(rshift(op, rs), 31) + band(op, 0x20)
+    elseif p == "C" then
+      x = condfmt(band(rshift(op, rs), 31))
+      rs = rs - 5
+    elseif p == "B" then
+      local bo = rshift(op, 21)
+      local cond = band(rshift(op, 16), 31)
+      local cn = ""
+      rs = rs - 10
+      if band(bo, 4) == 0 then
+	cn = band(bo, 2) == 0 and "dnz" or "dz"
+	if band(bo, 0x10) == 0 then
+	  cn = cn..(band(bo, 8) == 0 and "f" or "t")
+	end
+	if band(bo, 0x10) == 0 then x = condfmt(cond) end
+	name = name..(band(bo, 1) == band(rshift(op, 15), 1) and "-" or "+")
+      elseif band(bo, 0x10) == 0 then
+	cn = map_cond[band(cond, 3) + (band(bo, 8) == 0 and 4 or 0)]
+	if cond > 3 then x = "cr"..rshift(cond, 2) end
+	name = name..(band(bo, 1) == band(rshift(op, 15), 1) and "-" or "+")
+      end
+      name = gsub(name, "_", cn)
+    elseif p == "J" then
+      x = arshift(lshift(op, 27-rs), 29-rs)*4
+      if band(op, 2) == 0 then x = ctx.addr + pos + x end
+      ctx.rel = x
+      x = "0x"..tohex(x)
+    elseif p == "K" then
+      if band(op, 1) ~= 0 then name = name.."l" end
+      if band(op, 2) ~= 0 then name = name.."a" end
+    elseif p == "X" or p == "Y" then
+      x = band(rshift(op, rs+2), 7)
+      if x == 0 and p == "Y" then x = nil else x = "cr"..x end
+      rs = rs - 5
+    elseif p == "W" then
+      x = "cr"..band(op, 7)
+    elseif p == "Z" then
+      x = band(rshift(op, rs-4), 255)
+      rs = rs - 10
+    elseif p == ">" then
+      operands[#operands] = rshift(operands[#operands], 1)
+    elseif p == "0" then
+      if last == "r0" then
+	operands[#operands] = nil
+	if altname then name = altname end
+      end
+    elseif p == "L" then
+      name = gsub(name, "_", band(op, 0x00200000) ~= 0 and "d" or "w")
+    elseif p == "." then
+      if band(op, 1) == 1 then name = name.."." end
+    elseif p == "N" then
+      if op == 0x60000000 then name = "nop"; break end
+    elseif p == "~" then
+      local n = #operands
+      operands[n-1],  operands[n] = operands[n], operands[n-1]
+    elseif p == "=" then
+      local n = #operands
+      if last == operands[n-1] then
+	operands[n] = nil
+	name = altname
+      end
+    elseif p == "%" then
+      local n = #operands
+      if last == operands[n-1] and last == operands[n-2] then
+	operands[n] = nil
+	operands[n-1] = nil
+	name = altname
+      end
+    elseif p == "-" then
+      rs = rs - 5
+    else
+      assert(false)
+    end
+    if x then operands[#operands+1] = x; last = x end
+  end
+
+  return putop(ctx, name, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  stop = stop - stop % 4
+  ctx.pos = ofs - ofs % 4
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create_(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass_(code, addr, out)
+  create_(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname_(r)
+  if r < 32 then return map_gpr[r] end
+  return "f"..(r-32)
+end
+
+-- Public module functions.
+module(...)
+
+create = create_
+disass = disass_
+regname = regname_
+
diff --git a/lib/luajit/src/jit/dis_x64.lua b/lib/luajit/src/jit/dis_x64.lua
new file mode 100644
index 00000000..4f491695
--- /dev/null
+++ b/lib/luajit/src/jit/dis_x64.lua
@@ -0,0 +1,20 @@
+----------------------------------------------------------------------------
+-- LuaJIT x64 disassembler wrapper module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the 64 bit functions from the combined
+-- x86/x64 disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local require = require
+
+module(...)
+
+local dis_x86 = require(_PACKAGE.."dis_x86")
+
+create = dis_x86.create64
+disass = dis_x86.disass64
+regname = dis_x86.regname64
+
diff --git a/lib/luajit/src/jit/dis_x86.lua b/lib/luajit/src/jit/dis_x86.lua
new file mode 100644
index 00000000..0b865ab6
--- /dev/null
+++ b/lib/luajit/src/jit/dis_x86.lua
@@ -0,0 +1,836 @@
+----------------------------------------------------------------------------
+-- LuaJIT x86/x64 disassembler module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- Sending small code snippets to an external disassembler and mixing the
+-- output with our own stuff was too fragile. So I had to bite the bullet
+-- and write yet another x86 disassembler. Oh well ...
+--
+-- The output format is very similar to what ndisasm generates. But it has
+-- been developed independently by looking at the opcode tables from the
+-- Intel and AMD manuals. The supported instruction set is quite extensive
+-- and reflects what a current generation Intel or AMD CPU implements in
+-- 32 bit and 64 bit mode. Yes, this includes MMX, SSE, SSE2, SSE3, SSSE3,
+-- SSE4.1, SSE4.2, SSE4a and even privileged and hypervisor (VMX/SVM)
+-- instructions.
+--
+-- Notes:
+-- * The (useless) a16 prefix, 3DNow and pre-586 opcodes are unsupported.
+-- * No attempt at optimization has been made -- it's fast enough for my needs.
+-- * The public API may change when more architectures are added.
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local lower, rep = string.lower, string.rep
+
+-- Map for 1st opcode byte in 32 bit mode. Ugly? Well ... read on.
+local map_opc1_32 = {
+--0x
+[0]="addBmr","addVmr","addBrm","addVrm","addBai","addVai","push es","pop es",
+"orBmr","orVmr","orBrm","orVrm","orBai","orVai","push cs","opc2*",
+--1x
+"adcBmr","adcVmr","adcBrm","adcVrm","adcBai","adcVai","push ss","pop ss",
+"sbbBmr","sbbVmr","sbbBrm","sbbVrm","sbbBai","sbbVai","push ds","pop ds",
+--2x
+"andBmr","andVmr","andBrm","andVrm","andBai","andVai","es:seg","daa",
+"subBmr","subVmr","subBrm","subVrm","subBai","subVai","cs:seg","das",
+--3x
+"xorBmr","xorVmr","xorBrm","xorVrm","xorBai","xorVai","ss:seg","aaa",
+"cmpBmr","cmpVmr","cmpBrm","cmpVrm","cmpBai","cmpVai","ds:seg","aas",
+--4x
+"incVR","incVR","incVR","incVR","incVR","incVR","incVR","incVR",
+"decVR","decVR","decVR","decVR","decVR","decVR","decVR","decVR",
+--5x
+"pushUR","pushUR","pushUR","pushUR","pushUR","pushUR","pushUR","pushUR",
+"popUR","popUR","popUR","popUR","popUR","popUR","popUR","popUR",
+--6x
+"sz*pushaw,pusha","sz*popaw,popa","boundVrm","arplWmr",
+"fs:seg","gs:seg","o16:","a16",
+"pushUi","imulVrmi","pushBs","imulVrms",
+"insb","insVS","outsb","outsVS",
+--7x
+"joBj","jnoBj","jbBj","jnbBj","jzBj","jnzBj","jbeBj","jaBj",
+"jsBj","jnsBj","jpeBj","jpoBj","jlBj","jgeBj","jleBj","jgBj",
+--8x
+"arith!Bmi","arith!Vmi","arith!Bmi","arith!Vms",
+"testBmr","testVmr","xchgBrm","xchgVrm",
+"movBmr","movVmr","movBrm","movVrm",
+"movVmg","leaVrm","movWgm","popUm",
+--9x
+"nop*xchgVaR|pause|xchgWaR|repne nop","xchgVaR","xchgVaR","xchgVaR",
+"xchgVaR","xchgVaR","xchgVaR","xchgVaR",
+"sz*cbw,cwde,cdqe","sz*cwd,cdq,cqo","call farViw","wait",
+"sz*pushfw,pushf","sz*popfw,popf","sahf","lahf",
+--Ax
+"movBao","movVao","movBoa","movVoa",
+"movsb","movsVS","cmpsb","cmpsVS",
+"testBai","testVai","stosb","stosVS",
+"lodsb","lodsVS","scasb","scasVS",
+--Bx
+"movBRi","movBRi","movBRi","movBRi","movBRi","movBRi","movBRi","movBRi",
+"movVRI","movVRI","movVRI","movVRI","movVRI","movVRI","movVRI","movVRI",
+--Cx
+"shift!Bmu","shift!Vmu","retBw","ret","$lesVrm","$ldsVrm","movBmi","movVmi",
+"enterBwu","leave","retfBw","retf","int3","intBu","into","iretVS",
+--Dx
+"shift!Bm1","shift!Vm1","shift!Bmc","shift!Vmc","aamBu","aadBu","salc","xlatb",
+"fp*0","fp*1","fp*2","fp*3","fp*4","fp*5","fp*6","fp*7",
+--Ex
+"loopneBj","loopeBj","loopBj","sz*jcxzBj,jecxzBj,jrcxzBj",
+"inBau","inVau","outBua","outVua",
+"callVj","jmpVj","jmp farViw","jmpBj","inBad","inVad","outBda","outVda",
+--Fx
+"lock:","int1","repne:rep","rep:","hlt","cmc","testb!Bm","testv!Vm",
+"clc","stc","cli","sti","cld","std","incb!Bm","incd!Vm",
+}
+assert(#map_opc1_32 == 255)
+
+-- Map for 1st opcode byte in 64 bit mode (overrides only).
+local map_opc1_64 = setmetatable({
+  [0x06]=false, [0x07]=false, [0x0e]=false,
+  [0x16]=false, [0x17]=false, [0x1e]=false, [0x1f]=false,
+  [0x27]=false, [0x2f]=false, [0x37]=false, [0x3f]=false,
+  [0x60]=false, [0x61]=false, [0x62]=false, [0x63]="movsxdVrDmt", [0x67]="a32:",
+  [0x40]="rex*",   [0x41]="rex*b",   [0x42]="rex*x",   [0x43]="rex*xb",
+  [0x44]="rex*r",  [0x45]="rex*rb",  [0x46]="rex*rx",  [0x47]="rex*rxb",
+  [0x48]="rex*w",  [0x49]="rex*wb",  [0x4a]="rex*wx",  [0x4b]="rex*wxb",
+  [0x4c]="rex*wr", [0x4d]="rex*wrb", [0x4e]="rex*wrx", [0x4f]="rex*wrxb",
+  [0x82]=false, [0x9a]=false, [0xc4]=false, [0xc5]=false, [0xce]=false,
+  [0xd4]=false, [0xd5]=false, [0xd6]=false, [0xea]=false,
+}, { __index = map_opc1_32 })
+
+-- Map for 2nd opcode byte (0F xx). True CISC hell. Hey, I told you.
+-- Prefix dependent MMX/SSE opcodes: (none)|rep|o16|repne, -|F3|66|F2
+local map_opc2 = {
+--0x
+[0]="sldt!Dmp","sgdt!Ump","larVrm","lslVrm",nil,"syscall","clts","sysret",
+"invd","wbinvd",nil,"ud1",nil,"$prefetch!Bm","femms","3dnowMrmu",
+--1x
+"movupsXrm|movssXrm|movupdXrm|movsdXrm",
+"movupsXmr|movssXmr|movupdXmr|movsdXmr",
+"movhlpsXrm$movlpsXrm|movsldupXrm|movlpdXrm|movddupXrm",
+"movlpsXmr||movlpdXmr",
+"unpcklpsXrm||unpcklpdXrm",
+"unpckhpsXrm||unpckhpdXrm",
+"movlhpsXrm$movhpsXrm|movshdupXrm|movhpdXrm",
+"movhpsXmr||movhpdXmr",
+"$prefetcht!Bm","hintnopVm","hintnopVm","hintnopVm",
+"hintnopVm","hintnopVm","hintnopVm","hintnopVm",
+--2x
+"movUmx$","movUmy$","movUxm$","movUym$","movUmz$",nil,"movUzm$",nil,
+"movapsXrm||movapdXrm",
+"movapsXmr||movapdXmr",
+"cvtpi2psXrMm|cvtsi2ssXrVmt|cvtpi2pdXrMm|cvtsi2sdXrVmt",
+"movntpsXmr|movntssXmr|movntpdXmr|movntsdXmr",
+"cvttps2piMrXm|cvttss2siVrXm|cvttpd2piMrXm|cvttsd2siVrXm",
+"cvtps2piMrXm|cvtss2siVrXm|cvtpd2piMrXm|cvtsd2siVrXm",
+"ucomissXrm||ucomisdXrm",
+"comissXrm||comisdXrm",
+--3x
+"wrmsr","rdtsc","rdmsr","rdpmc","sysenter","sysexit",nil,"getsec",
+"opc3*38",nil,"opc3*3a",nil,nil,nil,nil,nil,
+--4x
+"cmovoVrm","cmovnoVrm","cmovbVrm","cmovnbVrm",
+"cmovzVrm","cmovnzVrm","cmovbeVrm","cmovaVrm",
+"cmovsVrm","cmovnsVrm","cmovpeVrm","cmovpoVrm",
+"cmovlVrm","cmovgeVrm","cmovleVrm","cmovgVrm",
+--5x
+"movmskpsVrXm$||movmskpdVrXm$","sqrtpsXrm|sqrtssXrm|sqrtpdXrm|sqrtsdXrm",
+"rsqrtpsXrm|rsqrtssXrm","rcppsXrm|rcpssXrm",
+"andpsXrm||andpdXrm","andnpsXrm||andnpdXrm",
+"orpsXrm||orpdXrm","xorpsXrm||xorpdXrm",
+"addpsXrm|addssXrm|addpdXrm|addsdXrm","mulpsXrm|mulssXrm|mulpdXrm|mulsdXrm",
+"cvtps2pdXrm|cvtss2sdXrm|cvtpd2psXrm|cvtsd2ssXrm",
+"cvtdq2psXrm|cvttps2dqXrm|cvtps2dqXrm",
+"subpsXrm|subssXrm|subpdXrm|subsdXrm","minpsXrm|minssXrm|minpdXrm|minsdXrm",
+"divpsXrm|divssXrm|divpdXrm|divsdXrm","maxpsXrm|maxssXrm|maxpdXrm|maxsdXrm",
+--6x
+"punpcklbwPrm","punpcklwdPrm","punpckldqPrm","packsswbPrm",
+"pcmpgtbPrm","pcmpgtwPrm","pcmpgtdPrm","packuswbPrm",
+"punpckhbwPrm","punpckhwdPrm","punpckhdqPrm","packssdwPrm",
+"||punpcklqdqXrm","||punpckhqdqXrm",
+"movPrVSm","movqMrm|movdquXrm|movdqaXrm",
+--7x
+"pshufwMrmu|pshufhwXrmu|pshufdXrmu|pshuflwXrmu","pshiftw!Pmu",
+"pshiftd!Pmu","pshiftq!Mmu||pshiftdq!Xmu",
+"pcmpeqbPrm","pcmpeqwPrm","pcmpeqdPrm","emms|",
+"vmreadUmr||extrqXmuu$|insertqXrmuu$","vmwriteUrm||extrqXrm$|insertqXrm$",
+nil,nil,
+"||haddpdXrm|haddpsXrm","||hsubpdXrm|hsubpsXrm",
+"movVSmMr|movqXrm|movVSmXr","movqMmr|movdquXmr|movdqaXmr",
+--8x
+"joVj","jnoVj","jbVj","jnbVj","jzVj","jnzVj","jbeVj","jaVj",
+"jsVj","jnsVj","jpeVj","jpoVj","jlVj","jgeVj","jleVj","jgVj",
+--9x
+"setoBm","setnoBm","setbBm","setnbBm","setzBm","setnzBm","setbeBm","setaBm",
+"setsBm","setnsBm","setpeBm","setpoBm","setlBm","setgeBm","setleBm","setgBm",
+--Ax
+"push fs","pop fs","cpuid","btVmr","shldVmru","shldVmrc",nil,nil,
+"push gs","pop gs","rsm","btsVmr","shrdVmru","shrdVmrc","fxsave!Dmp","imulVrm",
+--Bx
+"cmpxchgBmr","cmpxchgVmr","$lssVrm","btrVmr",
+"$lfsVrm","$lgsVrm","movzxVrBmt","movzxVrWmt",
+"|popcntVrm","ud2Dp","bt!Vmu","btcVmr",
+"bsfVrm","bsrVrm|lzcntVrm|bsrWrm","movsxVrBmt","movsxVrWmt",
+--Cx
+"xaddBmr","xaddVmr",
+"cmppsXrmu|cmpssXrmu|cmppdXrmu|cmpsdXrmu","$movntiVmr|",
+"pinsrwPrWmu","pextrwDrPmu",
+"shufpsXrmu||shufpdXrmu","$cmpxchg!Qmp",
+"bswapVR","bswapVR","bswapVR","bswapVR","bswapVR","bswapVR","bswapVR","bswapVR",
+--Dx
+"||addsubpdXrm|addsubpsXrm","psrlwPrm","psrldPrm","psrlqPrm",
+"paddqPrm","pmullwPrm",
+"|movq2dqXrMm|movqXmr|movdq2qMrXm$","pmovmskbVrMm||pmovmskbVrXm",
+"psubusbPrm","psubuswPrm","pminubPrm","pandPrm",
+"paddusbPrm","padduswPrm","pmaxubPrm","pandnPrm",
+--Ex
+"pavgbPrm","psrawPrm","psradPrm","pavgwPrm",
+"pmulhuwPrm","pmulhwPrm",
+"|cvtdq2pdXrm|cvttpd2dqXrm|cvtpd2dqXrm","$movntqMmr||$movntdqXmr",
+"psubsbPrm","psubswPrm","pminswPrm","porPrm",
+"paddsbPrm","paddswPrm","pmaxswPrm","pxorPrm",
+--Fx
+"|||lddquXrm","psllwPrm","pslldPrm","psllqPrm",
+"pmuludqPrm","pmaddwdPrm","psadbwPrm","maskmovqMrm||maskmovdquXrm$",
+"psubbPrm","psubwPrm","psubdPrm","psubqPrm",
+"paddbPrm","paddwPrm","padddPrm","ud",
+}
+assert(map_opc2[255] == "ud")
+
+-- Map for three-byte opcodes. Can't wait for their next invention.
+local map_opc3 = {
+["38"] = { -- [66] 0f 38 xx
+--0x
+[0]="pshufbPrm","phaddwPrm","phadddPrm","phaddswPrm",
+"pmaddubswPrm","phsubwPrm","phsubdPrm","phsubswPrm",
+"psignbPrm","psignwPrm","psigndPrm","pmulhrswPrm",
+nil,nil,nil,nil,
+--1x
+"||pblendvbXrma",nil,nil,nil,
+"||blendvpsXrma","||blendvpdXrma",nil,"||ptestXrm",
+nil,nil,nil,nil,
+"pabsbPrm","pabswPrm","pabsdPrm",nil,
+--2x
+"||pmovsxbwXrm","||pmovsxbdXrm","||pmovsxbqXrm","||pmovsxwdXrm",
+"||pmovsxwqXrm","||pmovsxdqXrm",nil,nil,
+"||pmuldqXrm","||pcmpeqqXrm","||$movntdqaXrm","||packusdwXrm",
+nil,nil,nil,nil,
+--3x
+"||pmovzxbwXrm","||pmovzxbdXrm","||pmovzxbqXrm","||pmovzxwdXrm",
+"||pmovzxwqXrm","||pmovzxdqXrm",nil,"||pcmpgtqXrm",
+"||pminsbXrm","||pminsdXrm","||pminuwXrm","||pminudXrm",
+"||pmaxsbXrm","||pmaxsdXrm","||pmaxuwXrm","||pmaxudXrm",
+--4x
+"||pmulddXrm","||phminposuwXrm",
+--Fx
+[0xf0] = "|||crc32TrBmt",[0xf1] = "|||crc32TrVmt",
+},
+
+["3a"] = { -- [66] 0f 3a xx
+--0x
+[0x00]=nil,nil,nil,nil,nil,nil,nil,nil,
+"||roundpsXrmu","||roundpdXrmu","||roundssXrmu","||roundsdXrmu",
+"||blendpsXrmu","||blendpdXrmu","||pblendwXrmu","palignrPrmu",
+--1x
+nil,nil,nil,nil,
+"||pextrbVmXru","||pextrwVmXru","||pextrVmSXru","||extractpsVmXru",
+nil,nil,nil,nil,nil,nil,nil,nil,
+--2x
+"||pinsrbXrVmu","||insertpsXrmu","||pinsrXrVmuS",nil,
+--4x
+[0x40] = "||dppsXrmu",
+[0x41] = "||dppdXrmu",
+[0x42] = "||mpsadbwXrmu",
+--6x
+[0x60] = "||pcmpestrmXrmu",[0x61] = "||pcmpestriXrmu",
+[0x62] = "||pcmpistrmXrmu",[0x63] = "||pcmpistriXrmu",
+},
+}
+
+-- Map for VMX/SVM opcodes 0F 01 C0-FF (sgdt group with register operands).
+local map_opcvm = {
+[0xc1]="vmcall",[0xc2]="vmlaunch",[0xc3]="vmresume",[0xc4]="vmxoff",
+[0xc8]="monitor",[0xc9]="mwait",
+[0xd8]="vmrun",[0xd9]="vmmcall",[0xda]="vmload",[0xdb]="vmsave",
+[0xdc]="stgi",[0xdd]="clgi",[0xde]="skinit",[0xdf]="invlpga",
+[0xf8]="swapgs",[0xf9]="rdtscp",
+}
+
+-- Map for FP opcodes. And you thought stack machines are simple?
+local map_opcfp = {
+-- D8-DF 00-BF: opcodes with a memory operand.
+-- D8
+[0]="faddFm","fmulFm","fcomFm","fcompFm","fsubFm","fsubrFm","fdivFm","fdivrFm",
+"fldFm",nil,"fstFm","fstpFm","fldenvVm","fldcwWm","fnstenvVm","fnstcwWm",
+-- DA
+"fiaddDm","fimulDm","ficomDm","ficompDm",
+"fisubDm","fisubrDm","fidivDm","fidivrDm",
+-- DB
+"fildDm","fisttpDm","fistDm","fistpDm",nil,"fld twordFmp",nil,"fstp twordFmp",
+-- DC
+"faddGm","fmulGm","fcomGm","fcompGm","fsubGm","fsubrGm","fdivGm","fdivrGm",
+-- DD
+"fldGm","fisttpQm","fstGm","fstpGm","frstorDmp",nil,"fnsaveDmp","fnstswWm",
+-- DE
+"fiaddWm","fimulWm","ficomWm","ficompWm",
+"fisubWm","fisubrWm","fidivWm","fidivrWm",
+-- DF
+"fildWm","fisttpWm","fistWm","fistpWm",
+"fbld twordFmp","fildQm","fbstp twordFmp","fistpQm",
+-- xx C0-FF: opcodes with a pseudo-register operand.
+-- D8
+"faddFf","fmulFf","fcomFf","fcompFf","fsubFf","fsubrFf","fdivFf","fdivrFf",
+-- D9
+"fldFf","fxchFf",{"fnop"},nil,
+{"fchs","fabs",nil,nil,"ftst","fxam"},
+{"fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz"},
+{"f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp"},
+{"fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"},
+-- DA
+"fcmovbFf","fcmoveFf","fcmovbeFf","fcmovuFf",nil,{nil,"fucompp"},nil,nil,
+-- DB
+"fcmovnbFf","fcmovneFf","fcmovnbeFf","fcmovnuFf",
+{nil,nil,"fnclex","fninit"},"fucomiFf","fcomiFf",nil,
+-- DC
+"fadd toFf","fmul toFf",nil,nil,
+"fsub toFf","fsubr toFf","fdivr toFf","fdiv toFf",
+-- DD
+"ffreeFf",nil,"fstFf","fstpFf","fucomFf","fucompFf",nil,nil,
+-- DE
+"faddpFf","fmulpFf",nil,{nil,"fcompp"},
+"fsubrpFf","fsubpFf","fdivrpFf","fdivpFf",
+-- DF
+nil,nil,nil,nil,{"fnstsw ax"},"fucomipFf","fcomipFf",nil,
+}
+assert(map_opcfp[126] == "fcomipFf")
+
+-- Map for opcode groups. The subkey is sp from the ModRM byte.
+local map_opcgroup = {
+  arith = { "add", "or", "adc", "sbb", "and", "sub", "xor", "cmp" },
+  shift = { "rol", "ror", "rcl", "rcr", "shl", "shr", "sal", "sar" },
+  testb = { "testBmi", "testBmi", "not", "neg", "mul", "imul", "div", "idiv" },
+  testv = { "testVmi", "testVmi", "not", "neg", "mul", "imul", "div", "idiv" },
+  incb = { "inc", "dec" },
+  incd = { "inc", "dec", "callUmp", "$call farDmp",
+	   "jmpUmp", "$jmp farDmp", "pushUm" },
+  sldt = { "sldt", "str", "lldt", "ltr", "verr", "verw" },
+  sgdt = { "vm*$sgdt", "vm*$sidt", "$lgdt", "vm*$lidt",
+	   "smsw", nil, "lmsw", "vm*$invlpg" },
+  bt = { nil, nil, nil, nil, "bt", "bts", "btr", "btc" },
+  cmpxchg = { nil, "sz*,cmpxchg8bQmp,cmpxchg16bXmp", nil, nil,
+	      nil, nil, "vmptrld|vmxon|vmclear", "vmptrst" },
+  pshiftw = { nil, nil, "psrlw", nil, "psraw", nil, "psllw" },
+  pshiftd = { nil, nil, "psrld", nil, "psrad", nil, "pslld" },
+  pshiftq = { nil, nil, "psrlq", nil, nil, nil, "psllq" },
+  pshiftdq = { nil, nil, "psrlq", "psrldq", nil, nil, "psllq", "pslldq" },
+  fxsave = { "$fxsave", "$fxrstor", "$ldmxcsr", "$stmxcsr",
+	     nil, "lfenceDp$", "mfenceDp$", "sfenceDp$clflush" },
+  prefetch = { "prefetch", "prefetchw" },
+  prefetcht = { "prefetchnta", "prefetcht0", "prefetcht1", "prefetcht2" },
+}
+
+------------------------------------------------------------------------------
+
+-- Maps for register names.
+local map_regs = {
+  B = { "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh",
+	"r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b" },
+  B64 = { "al", "cl", "dl", "bl", "spl", "bpl", "sil", "dil",
+	  "r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b" },
+  W = { "ax", "cx", "dx", "bx", "sp", "bp", "si", "di",
+	"r8w", "r9w", "r10w", "r11w", "r12w", "r13w", "r14w", "r15w" },
+  D = { "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi",
+	"r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d" },
+  Q = { "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
+	"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15" },
+  M = { "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7",
+	"mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7" }, -- No x64 ext!
+  X = { "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
+	"xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15" },
+}
+local map_segregs = { "es", "cs", "ss", "ds", "fs", "gs", "segr6", "segr7" }
+
+-- Maps for size names.
+local map_sz2n = {
+  B = 1, W = 2, D = 4, Q = 8, M = 8, X = 16,
+}
+local map_sz2prefix = {
+  B = "byte", W = "word", D = "dword",
+  Q = "qword",
+  M = "qword", X = "xword",
+  F = "dword", G = "qword", -- No need for sizes/register names for these two.
+}
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local code, pos, hex = ctx.code, ctx.pos, ""
+  local hmax = ctx.hexdump
+  if hmax > 0 then
+    for i=ctx.start,pos-1 do
+      hex = hex..format("%02X", byte(code, i, i))
+    end
+    if #hex > hmax then hex = sub(hex, 1, hmax)..". "
+    else hex = hex..rep(" ", hmax-#hex+2) end
+  end
+  if operands then text = text.." "..operands end
+  if ctx.o16 then text = "o16 "..text; ctx.o16 = false end
+  if ctx.a32 then text = "a32 "..text; ctx.a32 = false end
+  if ctx.rep then text = ctx.rep.." "..text; ctx.rep = false end
+  if ctx.rex then
+    local t = (ctx.rexw and "w" or "")..(ctx.rexr and "r" or "")..
+	      (ctx.rexx and "x" or "")..(ctx.rexb and "b" or "")
+    if t ~= "" then text = "rex."..t.." "..text end
+    ctx.rexw = false; ctx.rexr = false; ctx.rexx = false; ctx.rexb = false
+    ctx.rex = false
+  end
+  if ctx.seg then
+    local text2, n = gsub(text, "%[", "["..ctx.seg..":")
+    if n == 0 then text = ctx.seg.." "..text else text = text2 end
+    ctx.seg = false
+  end
+  if ctx.lock then text = "lock "..text; ctx.lock = false end
+  local imm = ctx.imm
+  if imm then
+    local sym = ctx.symtab[imm]
+    if sym then text = text.."\t->"..sym end
+  end
+  ctx.out(format("%08x  %s%s\n", ctx.addr+ctx.start, hex, text))
+  ctx.mrm = false
+  ctx.start = pos
+  ctx.imm = nil
+end
+
+-- Clear all prefix flags.
+local function clearprefixes(ctx)
+  ctx.o16 = false; ctx.seg = false; ctx.lock = false; ctx.rep = false
+  ctx.rexw = false; ctx.rexr = false; ctx.rexx = false; ctx.rexb = false
+  ctx.rex = false; ctx.a32 = false
+end
+
+-- Fallback for incomplete opcodes at the end.
+local function incomplete(ctx)
+  ctx.pos = ctx.stop+1
+  clearprefixes(ctx)
+  return putop(ctx, "(incomplete)")
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  clearprefixes(ctx)
+  return putop(ctx, "(unknown)")
+end
+
+-- Return an immediate of the specified size.
+local function getimm(ctx, pos, n)
+  if pos+n-1 > ctx.stop then return incomplete(ctx) end
+  local code = ctx.code
+  if n == 1 then
+    local b1 = byte(code, pos, pos)
+    return b1
+  elseif n == 2 then
+    local b1, b2 = byte(code, pos, pos+1)
+    return b1+b2*256
+  else
+    local b1, b2, b3, b4 = byte(code, pos, pos+3)
+    local imm = b1+b2*256+b3*65536+b4*16777216
+    ctx.imm = imm
+    return imm
+  end
+end
+
+-- Process pattern string and generate the operands.
+local function putpat(ctx, name, pat)
+  local operands, regs, sz, mode, sp, rm, sc, rx, sdisp
+  local code, pos, stop = ctx.code, ctx.pos, ctx.stop
+
+  -- Chars used: 1DFGIMPQRSTUVWXacdfgijmoprstuwxyz
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "V" or p == "U" then
+      if ctx.rexw then sz = "Q"; ctx.rexw = false
+      elseif ctx.o16 then sz = "W"; ctx.o16 = false
+      elseif p == "U" and ctx.x64 then sz = "Q"
+      else sz = "D" end
+      regs = map_regs[sz]
+    elseif p == "T" then
+      if ctx.rexw then sz = "Q"; ctx.rexw = false else sz = "D" end
+      regs = map_regs[sz]
+    elseif p == "B" then
+      sz = "B"
+      regs = ctx.rex and map_regs.B64 or map_regs.B
+    elseif match(p, "[WDQMXFG]") then
+      sz = p
+      regs = map_regs[sz]
+    elseif p == "P" then
+      sz = ctx.o16 and "X" or "M"; ctx.o16 = false
+      regs = map_regs[sz]
+    elseif p == "S" then
+      name = name..lower(sz)
+    elseif p == "s" then
+      local imm = getimm(ctx, pos, 1); if not imm then return end
+      x = imm <= 127 and format("+0x%02x", imm)
+		     or format("-0x%02x", 256-imm)
+      pos = pos+1
+    elseif p == "u" then
+      local imm = getimm(ctx, pos, 1); if not imm then return end
+      x = format("0x%02x", imm)
+      pos = pos+1
+    elseif p == "w" then
+      local imm = getimm(ctx, pos, 2); if not imm then return end
+      x = format("0x%x", imm)
+      pos = pos+2
+    elseif p == "o" then -- [offset]
+      if ctx.x64 then
+	local imm1 = getimm(ctx, pos, 4); if not imm1 then return end
+	local imm2 = getimm(ctx, pos+4, 4); if not imm2 then return end
+	x = format("[0x%08x%08x]", imm2, imm1)
+	pos = pos+8
+      else
+	local imm = getimm(ctx, pos, 4); if not imm then return end
+	x = format("[0x%08x]", imm)
+	pos = pos+4
+      end
+    elseif p == "i" or p == "I" then
+      local n = map_sz2n[sz]
+      if n == 8 and ctx.x64 and p == "I" then
+	local imm1 = getimm(ctx, pos, 4); if not imm1 then return end
+	local imm2 = getimm(ctx, pos+4, 4); if not imm2 then return end
+	x = format("0x%08x%08x", imm2, imm1)
+      else
+	if n == 8 then n = 4 end
+	local imm = getimm(ctx, pos, n); if not imm then return end
+	if sz == "Q" and (imm < 0 or imm > 0x7fffffff) then
+	  imm = (0xffffffff+1)-imm
+	  x = format(imm > 65535 and "-0x%08x" or "-0x%x", imm)
+	else
+	  x = format(imm > 65535 and "0x%08x" or "0x%x", imm)
+	end
+      end
+      pos = pos+n
+    elseif p == "j" then
+      local n = map_sz2n[sz]
+      if n == 8 then n = 4 end
+      local imm = getimm(ctx, pos, n); if not imm then return end
+      if sz == "B" and imm > 127 then imm = imm-256
+      elseif imm > 2147483647 then imm = imm-4294967296 end
+      pos = pos+n
+      imm = imm + pos + ctx.addr
+      if imm > 4294967295 and not ctx.x64 then imm = imm-4294967296 end
+      ctx.imm = imm
+      if sz == "W" then
+	x = format("word 0x%04x", imm%65536)
+      elseif ctx.x64 then
+	local lo = imm % 0x1000000
+	x = format("0x%02x%06x", (imm-lo) / 0x1000000, lo)
+      else
+	x = format("0x%08x", imm)
+      end
+    elseif p == "R" then
+      local r = byte(code, pos-1, pos-1)%8
+      if ctx.rexb then r = r + 8; ctx.rexb = false end
+      x = regs[r+1]
+    elseif p == "a" then x = regs[1]
+    elseif p == "c" then x = "cl"
+    elseif p == "d" then x = "dx"
+    elseif p == "1" then x = "1"
+    else
+      if not mode then
+	mode = ctx.mrm
+	if not mode then
+	  if pos > stop then return incomplete(ctx) end
+	  mode = byte(code, pos, pos)
+	  pos = pos+1
+	end
+	rm = mode%8; mode = (mode-rm)/8
+	sp = mode%8; mode = (mode-sp)/8
+	sdisp = ""
+	if mode < 3 then
+	  if rm == 4 then
+	    if pos > stop then return incomplete(ctx) end
+	    sc = byte(code, pos, pos)
+	    pos = pos+1
+	    rm = sc%8; sc = (sc-rm)/8
+	    rx = sc%8; sc = (sc-rx)/8
+	    if ctx.rexx then rx = rx + 8; ctx.rexx = false end
+	    if rx == 4 then rx = nil end
+	  end
+	  if mode > 0 or rm == 5 then
+	    local dsz = mode
+	    if dsz ~= 1 then dsz = 4 end
+	    local disp = getimm(ctx, pos, dsz); if not disp then return end
+	    if mode == 0 then rm = nil end
+	    if rm or rx or (not sc and ctx.x64 and not ctx.a32) then
+	      if dsz == 1 and disp > 127 then
+		sdisp = format("-0x%x", 256-disp)
+	      elseif disp >= 0 and disp <= 0x7fffffff then
+		sdisp = format("+0x%x", disp)
+	      else
+		sdisp = format("-0x%x", (0xffffffff+1)-disp)
+	      end
+	    else
+	      sdisp = format(ctx.x64 and not ctx.a32 and
+		not (disp >= 0 and disp <= 0x7fffffff)
+		and "0xffffffff%08x" or "0x%08x", disp)
+	    end
+	    pos = pos+dsz
+	  end
+	end
+	if rm and ctx.rexb then rm = rm + 8; ctx.rexb = false end
+	if ctx.rexr then sp = sp + 8; ctx.rexr = false end
+      end
+      if p == "m" then
+	if mode == 3 then x = regs[rm+1]
+	else
+	  local aregs = ctx.a32 and map_regs.D or ctx.aregs
+	  local srm, srx = "", ""
+	  if rm then srm = aregs[rm+1]
+	  elseif not sc and ctx.x64 and not ctx.a32 then srm = "rip" end
+	  ctx.a32 = false
+	  if rx then
+	    if rm then srm = srm.."+" end
+	    srx = aregs[rx+1]
+	    if sc > 0 then srx = srx.."*"..(2^sc) end
+	  end
+	  x = format("[%s%s%s]", srm, srx, sdisp)
+	end
+	if mode < 3 and
+	   (not match(pat, "[aRrgp]") or match(pat, "t")) then -- Yuck.
+	  x = map_sz2prefix[sz].." "..x
+	end
+      elseif p == "r" then x = regs[sp+1]
+      elseif p == "g" then x = map_segregs[sp+1]
+      elseif p == "p" then -- Suppress prefix.
+      elseif p == "f" then x = "st"..rm
+      elseif p == "x" then
+	if sp == 0 and ctx.lock and not ctx.x64 then
+	  x = "CR8"; ctx.lock = false
+	else
+	  x = "CR"..sp
+	end
+      elseif p == "y" then x = "DR"..sp
+      elseif p == "z" then x = "TR"..sp
+      elseif p == "t" then
+      else
+	error("bad pattern `"..pat.."'")
+      end
+    end
+    if x then operands = operands and operands..", "..x or x end
+  end
+  ctx.pos = pos
+  return putop(ctx, name, operands)
+end
+
+-- Forward declaration.
+local map_act
+
+-- Fetch and cache MRM byte.
+local function getmrm(ctx)
+  local mrm = ctx.mrm
+  if not mrm then
+    local pos = ctx.pos
+    if pos > ctx.stop then return nil end
+    mrm = byte(ctx.code, pos, pos)
+    ctx.pos = pos+1
+    ctx.mrm = mrm
+  end
+  return mrm
+end
+
+-- Dispatch to handler depending on pattern.
+local function dispatch(ctx, opat, patgrp)
+  if not opat then return unknown(ctx) end
+  if match(opat, "%|") then -- MMX/SSE variants depending on prefix.
+    local p
+    if ctx.rep then
+      p = ctx.rep=="rep" and "%|([^%|]*)" or "%|[^%|]*%|[^%|]*%|([^%|]*)"
+      ctx.rep = false
+    elseif ctx.o16 then p = "%|[^%|]*%|([^%|]*)"; ctx.o16 = false
+    else p = "^[^%|]*" end
+    opat = match(opat, p)
+    if not opat then return unknown(ctx) end
+--    ctx.rep = false; ctx.o16 = false
+    --XXX fails for 66 f2 0f 38 f1 06  crc32 eax,WORD PTR [esi]
+    --XXX remove in branches?
+  end
+  if match(opat, "%$") then -- reg$mem variants.
+    local mrm = getmrm(ctx); if not mrm then return incomplete(ctx) end
+    opat = match(opat, mrm >= 192 and "^[^%$]*" or "%$(.*)")
+    if opat == "" then return unknown(ctx) end
+  end
+  if opat == "" then return unknown(ctx) end
+  local name, pat = match(opat, "^([a-z0-9 ]*)(.*)")
+  if pat == "" and patgrp then pat = patgrp end
+  return map_act[sub(pat, 1, 1)](ctx, name, pat)
+end
+
+-- Get a pattern from an opcode map and dispatch to handler.
+local function dispatchmap(ctx, opcmap)
+  local pos = ctx.pos
+  local opat = opcmap[byte(ctx.code, pos, pos)]
+  pos = pos + 1
+  ctx.pos = pos
+  return dispatch(ctx, opat)
+end
+
+-- Map for action codes. The key is the first char after the name.
+map_act = {
+  -- Simple opcodes without operands.
+  [""] = function(ctx, name, pat)
+    return putop(ctx, name)
+  end,
+
+  -- Operand size chars fall right through.
+  B = putpat, W = putpat, D = putpat, Q = putpat,
+  V = putpat, U = putpat, T = putpat,
+  M = putpat, X = putpat, P = putpat,
+  F = putpat, G = putpat,
+
+  -- Collect prefixes.
+  [":"] = function(ctx, name, pat)
+    ctx[pat == ":" and name or sub(pat, 2)] = name
+    if ctx.pos - ctx.start > 5 then return unknown(ctx) end -- Limit #prefixes.
+  end,
+
+  -- Chain to special handler specified by name.
+  ["*"] = function(ctx, name, pat)
+    return map_act[name](ctx, name, sub(pat, 2))
+  end,
+
+  -- Use named subtable for opcode group.
+  ["!"] = function(ctx, name, pat)
+    local mrm = getmrm(ctx); if not mrm then return incomplete(ctx) end
+    return dispatch(ctx, map_opcgroup[name][((mrm-(mrm%8))/8)%8+1], sub(pat, 2))
+  end,
+
+  -- o16,o32[,o64] variants.
+  sz = function(ctx, name, pat)
+    if ctx.o16 then ctx.o16 = false
+    else
+      pat = match(pat, ",(.*)")
+      if ctx.rexw then
+	local p = match(pat, ",(.*)")
+	if p then pat = p; ctx.rexw = false end
+      end
+    end
+    pat = match(pat, "^[^,]*")
+    return dispatch(ctx, pat)
+  end,
+
+  -- Two-byte opcode dispatch.
+  opc2 = function(ctx, name, pat)
+    return dispatchmap(ctx, map_opc2)
+  end,
+
+  -- Three-byte opcode dispatch.
+  opc3 = function(ctx, name, pat)
+    return dispatchmap(ctx, map_opc3[pat])
+  end,
+
+  -- VMX/SVM dispatch.
+  vm = function(ctx, name, pat)
+    return dispatch(ctx, map_opcvm[ctx.mrm])
+  end,
+
+  -- Floating point opcode dispatch.
+  fp = function(ctx, name, pat)
+    local mrm = getmrm(ctx); if not mrm then return incomplete(ctx) end
+    local rm = mrm%8
+    local idx = pat*8 + ((mrm-rm)/8)%8
+    if mrm >= 192 then idx = idx + 64 end
+    local opat = map_opcfp[idx]
+    if type(opat) == "table" then opat = opat[rm+1] end
+    return dispatch(ctx, opat)
+  end,
+
+  -- REX prefix.
+  rex = function(ctx, name, pat)
+    if ctx.rex then return unknown(ctx) end -- Only 1 REX prefix allowed.
+    for p in gmatch(pat, ".") do ctx["rex"..p] = true end
+    ctx.rex = true
+  end,
+
+  -- Special case for nop with REX prefix.
+  nop = function(ctx, name, pat)
+    return dispatch(ctx, ctx.rex and pat or "nop")
+  end,
+}
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  ofs = ofs + 1
+  ctx.start = ofs
+  ctx.pos = ofs
+  ctx.stop = stop
+  ctx.imm = nil
+  ctx.mrm = false
+  clearprefixes(ctx)
+  while ctx.pos <= stop do dispatchmap(ctx, ctx.map1) end
+  if ctx.pos ~= ctx.start then incomplete(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create_(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = (addr or 0) - 1
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 16
+  ctx.x64 = false
+  ctx.map1 = map_opc1_32
+  ctx.aregs = map_regs.D
+  return ctx
+end
+
+local function create64_(code, addr, out)
+  local ctx = create_(code, addr, out)
+  ctx.x64 = true
+  ctx.map1 = map_opc1_64
+  ctx.aregs = map_regs.Q
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass_(code, addr, out)
+  create_(code, addr, out):disass()
+end
+
+local function disass64_(code, addr, out)
+  create64_(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname_(r)
+  if r < 8 then return map_regs.D[r+1] end
+  return map_regs.X[r-7]
+end
+
+local function regname64_(r)
+  if r < 16 then return map_regs.Q[r+1] end
+  return map_regs.X[r-15]
+end
+
+-- Public module functions.
+module(...)
+
+create = create_
+create64 = create64_
+disass = disass_
+disass64 = disass64_
+regname = regname_
+regname64 = regname64_
+
diff --git a/lib/luajit/src/jit/dump.lua b/lib/luajit/src/jit/dump.lua
new file mode 100644
index 00000000..556ce883
--- /dev/null
+++ b/lib/luajit/src/jit/dump.lua
@@ -0,0 +1,699 @@
+----------------------------------------------------------------------------
+-- LuaJIT compiler dump module.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module can be used to debug the JIT compiler itself. It dumps the
+-- code representations and structures used in various compiler stages.
+--
+-- Example usage:
+--
+--   luajit -jdump -e "local x=0; for i=1,1e6 do x=x+i end; print(x)"
+--   luajit -jdump=im -e "for i=1,1000 do for j=1,1000 do end end" | less -R
+--   luajit -jdump=is myapp.lua | less -R
+--   luajit -jdump=-b myapp.lua
+--   luajit -jdump=+aH,myapp.html myapp.lua
+--   luajit -jdump=ixT,myapp.dump myapp.lua
+--
+-- The first argument specifies the dump mode. The second argument gives
+-- the output file name. Default output is to stdout, unless the environment
+-- variable LUAJIT_DUMPFILE is set. The file is overwritten every time the
+-- module is started.
+--
+-- Different features can be turned on or off with the dump mode. If the
+-- mode starts with a '+', the following features are added to the default
+-- set of features; a '-' removes them. Otherwise the features are replaced.
+--
+-- The following dump features are available (* marks the default):
+--
+--  * t  Print a line for each started, ended or aborted trace (see also -jv).
+--  * b  Dump the traced bytecode.
+--  * i  Dump the IR (intermediate representation).
+--    r  Augment the IR with register/stack slots.
+--    s  Dump the snapshot map.
+--  * m  Dump the generated machine code.
+--    x  Print each taken trace exit.
+--    X  Print each taken trace exit and the contents of all registers.
+--    a  Print the IR of aborted traces, too.
+--
+-- The output format can be set with the following characters:
+--
+--    T  Plain text output.
+--    A  ANSI-colored text output
+--    H  Colorized HTML + CSS output.
+--
+-- The default output format is plain text. It's set to ANSI-colored text
+-- if the COLORTERM variable is set. Note: this is independent of any output
+-- redirection, which is actually considered a feature.
+--
+-- You probably want to use less -R to enjoy viewing ANSI-colored text from
+-- a pipe or a file. Add this to your ~/.bashrc: export LESS="-R"
+--
+------------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20003, "LuaJIT core/library version mismatch")
+local jutil = require("jit.util")
+local vmdef = require("jit.vmdef")
+local funcinfo, funcbc = jutil.funcinfo, jutil.funcbc
+local traceinfo, traceir, tracek = jutil.traceinfo, jutil.traceir, jutil.tracek
+local tracemc, tracesnap = jutil.tracemc, jutil.tracesnap
+local traceexitstub, ircalladdr = jutil.traceexitstub, jutil.ircalladdr
+local bit = require("bit")
+local band, shl, shr = bit.band, bit.lshift, bit.rshift
+local sub, gsub, format = string.sub, string.gsub, string.format
+local byte, char, rep = string.byte, string.char, string.rep
+local type, tostring = type, tostring
+local stdout, stderr = io.stdout, io.stderr
+
+-- Load other modules on-demand.
+local bcline, disass
+
+-- Active flag, output file handle and dump mode.
+local active, out, dumpmode
+
+------------------------------------------------------------------------------
+
+local symtabmt = { __index = false }
+local symtab = {}
+local nexitsym = 0
+
+-- Fill nested symbol table with per-trace exit stub addresses.
+local function fillsymtab_tr(tr, nexit)
+  local t = {}
+  symtabmt.__index = t
+  if jit.arch == "mips" or jit.arch == "mipsel" then
+    t[traceexitstub(tr, 0)] = "exit"
+    return
+  end
+  for i=0,nexit-1 do
+    local addr = traceexitstub(tr, i)
+    t[addr] = tostring(i)
+  end
+  local addr = traceexitstub(tr, nexit)
+  if addr then t[addr] = "stack_check" end
+end
+
+-- Fill symbol table with trace exit stub addresses.
+local function fillsymtab(tr, nexit)
+  local t = symtab
+  if nexitsym == 0 then
+    local ircall = vmdef.ircall
+    for i=0,#ircall do
+      local addr = ircalladdr(i)
+      if addr ~= 0 then t[addr] = ircall[i] end
+    end
+  end
+  if nexitsym == 1000000 then -- Per-trace exit stubs.
+    fillsymtab_tr(tr, nexit)
+  elseif nexit > nexitsym then -- Shared exit stubs.
+    for i=nexitsym,nexit-1 do
+      local addr = traceexitstub(i)
+      if addr == nil then -- Fall back to per-trace exit stubs.
+	fillsymtab_tr(tr, nexit)
+	setmetatable(symtab, symtabmt)
+	nexit = 1000000
+	break
+      end
+      t[addr] = tostring(i)
+    end
+    nexitsym = nexit
+  end
+  return t
+end
+
+local function dumpwrite(s)
+  out:write(s)
+end
+
+-- Disassemble machine code.
+local function dump_mcode(tr)
+  local info = traceinfo(tr)
+  if not info then return end
+  local mcode, addr, loop = tracemc(tr)
+  if not mcode then return end
+  if not disass then disass = require("jit.dis_"..jit.arch) end
+  out:write("---- TRACE ", tr, " mcode ", #mcode, "\n")
+  local ctx = disass.create(mcode, addr, dumpwrite)
+  ctx.hexdump = 0
+  ctx.symtab = fillsymtab(tr, info.nexit)
+  if loop ~= 0 then
+    symtab[addr+loop] = "LOOP"
+    ctx:disass(0, loop)
+    out:write("->LOOP:\n")
+    ctx:disass(loop, #mcode-loop)
+    symtab[addr+loop] = nil
+  else
+    ctx:disass(0, #mcode)
+  end
+end
+
+------------------------------------------------------------------------------
+
+local irtype_text = {
+  [0] = "nil",
+  "fal",
+  "tru",
+  "lud",
+  "str",
+  "p32",
+  "thr",
+  "pro",
+  "fun",
+  "p64",
+  "cdt",
+  "tab",
+  "udt",
+  "flt",
+  "num",
+  "i8 ",
+  "u8 ",
+  "i16",
+  "u16",
+  "int",
+  "u32",
+  "i64",
+  "u64",
+  "sfp",
+}
+
+local colortype_ansi = {
+  [0] = "%s",
+  "%s",
+  "%s",
+  "\027[36m%s\027[m",
+  "\027[32m%s\027[m",
+  "%s",
+  "\027[1m%s\027[m",
+  "%s",
+  "\027[1m%s\027[m",
+  "%s",
+  "\027[33m%s\027[m",
+  "\027[31m%s\027[m",
+  "\027[36m%s\027[m",
+  "\027[34m%s\027[m",
+  "\027[34m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+}
+
+local function colorize_text(s, t)
+  return s
+end
+
+local function colorize_ansi(s, t)
+  return format(colortype_ansi[t], s)
+end
+
+local irtype_ansi = setmetatable({},
+  { __index = function(tab, t)
+      local s = colorize_ansi(irtype_text[t], t); tab[t] = s; return s; end })
+
+local html_escape = { ["<"] = "&lt;", [">"] = "&gt;", ["&"] = "&amp;", }
+
+local function colorize_html(s, t)
+  s = gsub(s, "[<>&]", html_escape)
+  return format('<span class="irt_%s">%s</span>', irtype_text[t], s)
+end
+
+local irtype_html = setmetatable({},
+  { __index = function(tab, t)
+      local s = colorize_html(irtype_text[t], t); tab[t] = s; return s; end })
+
+local header_html = [[
+<style type="text/css">
+background { background: #ffffff; color: #000000; }
+pre.ljdump {
+font-size: 10pt;
+background: #f0f4ff;
+color: #000000;
+border: 1px solid #bfcfff;
+padding: 0.5em;
+margin-left: 2em;
+margin-right: 2em;
+}
+span.irt_str { color: #00a000; }
+span.irt_thr, span.irt_fun { color: #404040; font-weight: bold; }
+span.irt_tab { color: #c00000; }
+span.irt_udt, span.irt_lud { color: #00c0c0; }
+span.irt_num { color: #4040c0; }
+span.irt_int, span.irt_i8, span.irt_u8, span.irt_i16, span.irt_u16 { color: #b040b0; }
+</style>
+]]
+
+local colorize, irtype
+
+-- Lookup tables to convert some literals into names.
+local litname = {
+  ["SLOAD "] = setmetatable({}, { __index = function(t, mode)
+    local s = ""
+    if band(mode, 1) ~= 0 then s = s.."P" end
+    if band(mode, 2) ~= 0 then s = s.."F" end
+    if band(mode, 4) ~= 0 then s = s.."T" end
+    if band(mode, 8) ~= 0 then s = s.."C" end
+    if band(mode, 16) ~= 0 then s = s.."R" end
+    if band(mode, 32) ~= 0 then s = s.."I" end
+    t[mode] = s
+    return s
+  end}),
+  ["XLOAD "] = { [0] = "", "R", "V", "RV", "U", "RU", "VU", "RVU", },
+  ["CONV  "] = setmetatable({}, { __index = function(t, mode)
+    local s = irtype[band(mode, 31)]
+    s = irtype[band(shr(mode, 5), 31)].."."..s
+    if band(mode, 0x400) ~= 0 then s = s.." trunc"
+    elseif band(mode, 0x800) ~= 0 then s = s.." sext" end
+    local c = shr(mode, 14)
+    if c == 2 then s = s.." index" elseif c == 3 then s = s.." check" end
+    t[mode] = s
+    return s
+  end}),
+  ["FLOAD "] = vmdef.irfield,
+  ["FREF  "] = vmdef.irfield,
+  ["FPMATH"] = vmdef.irfpm,
+}
+
+local function ctlsub(c)
+  if c == "\n" then return "\\n"
+  elseif c == "\r" then return "\\r"
+  elseif c == "\t" then return "\\t"
+  else return format("\\%03d", byte(c))
+  end
+end
+
+local function fmtfunc(func, pc)
+  local fi = funcinfo(func, pc)
+  if fi.loc then
+    return fi.loc
+  elseif fi.ffid then
+    return vmdef.ffnames[fi.ffid]
+  elseif fi.addr then
+    return format("C:%x", fi.addr)
+  else
+    return "(?)"
+  end
+end
+
+local function formatk(tr, idx)
+  local k, t, slot = tracek(tr, idx)
+  local tn = type(k)
+  local s
+  if tn == "number" then
+    if k == 2^52+2^51 then
+      s = "bias"
+    else
+      s = format("%+.14g", k)
+    end
+  elseif tn == "string" then
+    s = format(#k > 20 and '"%.20s"~' or '"%s"', gsub(k, "%c", ctlsub))
+  elseif tn == "function" then
+    s = fmtfunc(k)
+  elseif tn == "table" then
+    s = format("{%p}", k)
+  elseif tn == "userdata" then
+    if t == 12 then
+      s = format("userdata:%p", k)
+    else
+      s = format("[%p]", k)
+      if s == "[0x00000000]" then s = "NULL" end
+    end
+  elseif t == 21 then -- int64_t
+    s = sub(tostring(k), 1, -3)
+    if sub(s, 1, 1) ~= "-" then s = "+"..s end
+  else
+    s = tostring(k) -- For primitives.
+  end
+  s = colorize(format("%-4s", s), t)
+  if slot then
+    s = format("%s @%d", s, slot)
+  end
+  return s
+end
+
+local function printsnap(tr, snap)
+  local n = 2
+  for s=0,snap[1]-1 do
+    local sn = snap[n]
+    if shr(sn, 24) == s then
+      n = n + 1
+      local ref = band(sn, 0xffff) - 0x8000 -- REF_BIAS
+      if ref < 0 then
+	out:write(formatk(tr, ref))
+      elseif band(sn, 0x80000) ~= 0 then -- SNAP_SOFTFPNUM
+	out:write(colorize(format("%04d/%04d", ref, ref+1), 14))
+      else
+	local m, ot, op1, op2 = traceir(tr, ref)
+	out:write(colorize(format("%04d", ref), band(ot, 31)))
+      end
+      out:write(band(sn, 0x10000) == 0 and " " or "|") -- SNAP_FRAME
+    else
+      out:write("---- ")
+    end
+  end
+  out:write("]\n")
+end
+
+-- Dump snapshots (not interleaved with IR).
+local function dump_snap(tr)
+  out:write("---- TRACE ", tr, " snapshots\n")
+  for i=0,1000000000 do
+    local snap = tracesnap(tr, i)
+    if not snap then break end
+    out:write(format("#%-3d %04d [ ", i, snap[0]))
+    printsnap(tr, snap)
+  end
+end
+
+-- Return a register name or stack slot for a rid/sp location.
+local function ridsp_name(ridsp, ins)
+  if not disass then disass = require("jit.dis_"..jit.arch) end
+  local rid, slot = band(ridsp, 0xff), shr(ridsp, 8)
+  if rid == 253 or rid == 254 then
+    return (slot == 0 or slot == 255) and " {sink" or format(" {%04d", ins-slot)
+  end
+  if ridsp > 255 then return format("[%x]", slot*4) end
+  if rid < 128 then return disass.regname(rid) end
+  return ""
+end
+
+-- Dump CALL* function ref and return optional ctype.
+local function dumpcallfunc(tr, ins)
+  local ctype
+  if ins > 0 then
+    local m, ot, op1, op2 = traceir(tr, ins)
+    if band(ot, 31) == 0 then -- nil type means CARG(func, ctype).
+      ins = op1
+      ctype = formatk(tr, op2)
+    end
+  end
+  if ins < 0 then
+    out:write(format("[0x%x](", tonumber((tracek(tr, ins)))))
+  else
+    out:write(format("%04d (", ins))
+  end
+  return ctype
+end
+
+-- Recursively gather CALL* args and dump them.
+local function dumpcallargs(tr, ins)
+  if ins < 0 then
+    out:write(formatk(tr, ins))
+  else
+    local m, ot, op1, op2 = traceir(tr, ins)
+    local oidx = 6*shr(ot, 8)
+    local op = sub(vmdef.irnames, oidx+1, oidx+6)
+    if op == "CARG  " then
+      dumpcallargs(tr, op1)
+      if op2 < 0 then
+	out:write(" ", formatk(tr, op2))
+      else
+	out:write(" ", format("%04d", op2))
+      end
+    else
+      out:write(format("%04d", ins))
+    end
+  end
+end
+
+-- Dump IR and interleaved snapshots.
+local function dump_ir(tr, dumpsnap, dumpreg)
+  local info = traceinfo(tr)
+  if not info then return end
+  local nins = info.nins
+  out:write("---- TRACE ", tr, " IR\n")
+  local irnames = vmdef.irnames
+  local snapref = 65536
+  local snap, snapno
+  if dumpsnap then
+    snap = tracesnap(tr, 0)
+    snapref = snap[0]
+    snapno = 0
+  end
+  for ins=1,nins do
+    if ins >= snapref then
+      if dumpreg then
+	out:write(format("....              SNAP   #%-3d [ ", snapno))
+      else
+	out:write(format("....        SNAP   #%-3d [ ", snapno))
+      end
+      printsnap(tr, snap)
+      snapno = snapno + 1
+      snap = tracesnap(tr, snapno)
+      snapref = snap and snap[0] or 65536
+    end
+    local m, ot, op1, op2, ridsp = traceir(tr, ins)
+    local oidx, t = 6*shr(ot, 8), band(ot, 31)
+    local op = sub(irnames, oidx+1, oidx+6)
+    if op == "LOOP  " then
+      if dumpreg then
+	out:write(format("%04d ------------ LOOP ------------\n", ins))
+      else
+	out:write(format("%04d ------ LOOP ------------\n", ins))
+      end
+    elseif op ~= "NOP   " and op ~= "CARG  " and
+	   (dumpreg or op ~= "RENAME") then
+      local rid = band(ridsp, 255)
+      if dumpreg then
+	out:write(format("%04d %-6s", ins, ridsp_name(ridsp, ins)))
+      else
+	out:write(format("%04d ", ins))
+      end
+      out:write(format("%s%s %s %s ",
+		       (rid == 254 or rid == 253) and "}" or
+		       (band(ot, 128) == 0 and " " or ">"),
+		       band(ot, 64) == 0 and " " or "+",
+		       irtype[t], op))
+      local m1, m2 = band(m, 3), band(m, 3*4)
+      if sub(op, 1, 4) == "CALL" then
+	local ctype
+	if m2 == 1*4 then -- op2 == IRMlit
+	  out:write(format("%-10s  (", vmdef.ircall[op2]))
+	else
+	  ctype = dumpcallfunc(tr, op2)
+	end
+	if op1 ~= -1 then dumpcallargs(tr, op1) end
+	out:write(")")
+	if ctype then out:write(" ctype ", ctype) end
+      elseif op == "CNEW  " and op2 == -1 then
+	out:write(formatk(tr, op1))
+      elseif m1 ~= 3 then -- op1 != IRMnone
+	if op1 < 0 then
+	  out:write(formatk(tr, op1))
+	else
+	  out:write(format(m1 == 0 and "%04d" or "#%-3d", op1))
+	end
+	if m2 ~= 3*4 then -- op2 != IRMnone
+	  if m2 == 1*4 then -- op2 == IRMlit
+	    local litn = litname[op]
+	    if litn and litn[op2] then
+	      out:write("  ", litn[op2])
+	    elseif op == "UREFO " or op == "UREFC " then
+	      out:write(format("  #%-3d", shr(op2, 8)))
+	    else
+	      out:write(format("  #%-3d", op2))
+	    end
+	  elseif op2 < 0 then
+	    out:write("  ", formatk(tr, op2))
+	  else
+	    out:write(format("  %04d", op2))
+	  end
+	end
+      end
+      out:write("\n")
+    end
+  end
+  if snap then
+    if dumpreg then
+      out:write(format("....              SNAP   #%-3d [ ", snapno))
+    else
+      out:write(format("....        SNAP   #%-3d [ ", snapno))
+    end
+    printsnap(tr, snap)
+  end
+end
+
+------------------------------------------------------------------------------
+
+local recprefix = ""
+local recdepth = 0
+
+-- Format trace error message.
+local function fmterr(err, info)
+  if type(err) == "number" then
+    if type(info) == "function" then info = fmtfunc(info) end
+    err = format(vmdef.traceerr[err], info)
+  end
+  return err
+end
+
+-- Dump trace states.
+local function dump_trace(what, tr, func, pc, otr, oex)
+  if what == "stop" or (what == "abort" and dumpmode.a) then
+    if dumpmode.i then dump_ir(tr, dumpmode.s, dumpmode.r and what == "stop")
+    elseif dumpmode.s then dump_snap(tr) end
+    if dumpmode.m then dump_mcode(tr) end
+  end
+  if what == "start" then
+    if dumpmode.H then out:write('<pre class="ljdump">\n') end
+    out:write("---- TRACE ", tr, " ", what)
+    if otr then out:write(" ", otr, "/", oex) end
+    out:write(" ", fmtfunc(func, pc), "\n")
+  elseif what == "stop" or what == "abort" then
+    out:write("---- TRACE ", tr, " ", what)
+    if what == "abort" then
+      out:write(" ", fmtfunc(func, pc), " -- ", fmterr(otr, oex), "\n")
+    else
+      local info = traceinfo(tr)
+      local link, ltype = info.link, info.linktype
+      if link == tr or link == 0 then
+	out:write(" -> ", ltype, "\n")
+      elseif ltype == "root" then
+	out:write(" -> ", link, "\n")
+      else
+	out:write(" -> ", link, " ", ltype, "\n")
+      end
+    end
+    if dumpmode.H then out:write("</pre>\n\n") else out:write("\n") end
+  else
+    out:write("---- TRACE ", what, "\n\n")
+  end
+  out:flush()
+end
+
+-- Dump recorded bytecode.
+local function dump_record(tr, func, pc, depth, callee)
+  if depth ~= recdepth then
+    recdepth = depth
+    recprefix = rep(" .", depth)
+  end
+  local line
+  if pc >= 0 then
+    line = bcline(func, pc, recprefix)
+    if dumpmode.H then line = gsub(line, "[<>&]", html_escape) end
+  else
+    line = "0000 "..recprefix.." FUNCC      \n"
+    callee = func
+  end
+  if pc <= 0 then
+    out:write(sub(line, 1, -2), "         ; ", fmtfunc(func), "\n")
+  else
+    out:write(line)
+  end
+  if pc >= 0 and band(funcbc(func, pc), 0xff) < 16 then -- ORDER BC
+    out:write(bcline(func, pc+1, recprefix)) -- Write JMP for cond.
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Dump taken trace exits.
+local function dump_texit(tr, ex, ngpr, nfpr, ...)
+  out:write("---- TRACE ", tr, " exit ", ex, "\n")
+  if dumpmode.X then
+    local regs = {...}
+    if jit.arch == "x64" then
+      for i=1,ngpr do
+	out:write(format(" %016x", regs[i]))
+	if i % 4 == 0 then out:write("\n") end
+      end
+    else
+      for i=1,ngpr do
+	out:write(format(" %08x", regs[i]))
+	if i % 8 == 0 then out:write("\n") end
+      end
+    end
+    if jit.arch == "mips" or jit.arch == "mipsel" then
+      for i=1,nfpr,2 do
+	out:write(format(" %+17.14g", regs[ngpr+i]))
+	if i % 8 == 7 then out:write("\n") end
+      end
+    else
+      for i=1,nfpr do
+	out:write(format(" %+17.14g", regs[ngpr+i]))
+	if i % 4 == 0 then out:write("\n") end
+      end
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Detach dump handlers.
+local function dumpoff()
+  if active then
+    active = false
+    jit.attach(dump_texit)
+    jit.attach(dump_record)
+    jit.attach(dump_trace)
+    if out and out ~= stdout and out ~= stderr then out:close() end
+    out = nil
+  end
+end
+
+-- Open the output file and attach dump handlers.
+local function dumpon(opt, outfile)
+  if active then dumpoff() end
+
+  local colormode = os.getenv("COLORTERM") and "A" or "T"
+  if opt then
+    opt = gsub(opt, "[TAH]", function(mode) colormode = mode; return ""; end)
+  end
+
+  local m = { t=true, b=true, i=true, m=true, }
+  if opt and opt ~= "" then
+    local o = sub(opt, 1, 1)
+    if o ~= "+" and o ~= "-" then m = {} end
+    for i=1,#opt do m[sub(opt, i, i)] = (o ~= "-") end
+  end
+  dumpmode = m
+
+  if m.t or m.b or m.i or m.s or m.m then
+    jit.attach(dump_trace, "trace")
+  end
+  if m.b then
+    jit.attach(dump_record, "record")
+    if not bcline then bcline = require("jit.bc").line end
+  end
+  if m.x or m.X then
+    jit.attach(dump_texit, "texit")
+  end
+
+  if not outfile then outfile = os.getenv("LUAJIT_DUMPFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stdout
+  end
+
+  m[colormode] = true
+  if colormode == "A" then
+    colorize = colorize_ansi
+    irtype = irtype_ansi
+  elseif colormode == "H" then
+    colorize = colorize_html
+    irtype = irtype_html
+    out:write(header_html)
+  else
+    colorize = colorize_text
+    irtype = irtype_text
+  end
+
+  active = true
+end
+
+-- Public module functions.
+module(...)
+
+on = dumpon
+off = dumpoff
+start = dumpon -- For -j command line option.
+
diff --git a/lib/luajit/src/jit/v.lua b/lib/luajit/src/jit/v.lua
new file mode 100644
index 00000000..197e67c6
--- /dev/null
+++ b/lib/luajit/src/jit/v.lua
@@ -0,0 +1,167 @@
+----------------------------------------------------------------------------
+-- Verbose mode of the LuaJIT compiler.
+--
+-- Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module shows verbose information about the progress of the
+-- JIT compiler. It prints one line for each generated trace. This module
+-- is useful to see which code has been compiled or where the compiler
+-- punts and falls back to the interpreter.
+--
+-- Example usage:
+--
+--   luajit -jv -e "for i=1,1000 do for j=1,1000 do end end"
+--   luajit -jv=myapp.out myapp.lua
+--
+-- Default output is to stderr. To redirect the output to a file, pass a
+-- filename as an argument (use '-' for stdout) or set the environment
+-- variable LUAJIT_VERBOSEFILE. The file is overwritten every time the
+-- module is started.
+--
+-- The output from the first example should look like this:
+--
+-- [TRACE   1 (command line):1 loop]
+-- [TRACE   2 (1/3) (command line):1 -> 1]
+--
+-- The first number in each line is the internal trace number. Next are
+-- the file name ('(command line)') and the line number (':1') where the
+-- trace has started. Side traces also show the parent trace number and
+-- the exit number where they are attached to in parentheses ('(1/3)').
+-- An arrow at the end shows where the trace links to ('-> 1'), unless
+-- it loops to itself.
+--
+-- In this case the inner loop gets hot and is traced first, generating
+-- a root trace. Then the last exit from the 1st trace gets hot, too,
+-- and triggers generation of the 2nd trace. The side trace follows the
+-- path along the outer loop and *around* the inner loop, back to its
+-- start, and then links to the 1st trace. Yes, this may seem unusual,
+-- if you know how traditional compilers work. Trace compilers are full
+-- of surprises like this -- have fun! :-)
+--
+-- Aborted traces are shown like this:
+--
+-- [TRACE --- foo.lua:44 -- leaving loop in root trace at foo:lua:50]
+--
+-- Don't worry -- trace aborts are quite common, even in programs which
+-- can be fully compiled. The compiler may retry several times until it
+-- finds a suitable trace.
+--
+-- Of course this doesn't work with features that are not-yet-implemented
+-- (NYI error messages). The VM simply falls back to the interpreter. This
+-- may not matter at all if the particular trace is not very high up in
+-- the CPU usage profile. Oh, and the interpreter is quite fast, too.
+--
+-- Also check out the -jdump module, which prints all the gory details.
+--
+------------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20003, "LuaJIT core/library version mismatch")
+local jutil = require("jit.util")
+local vmdef = require("jit.vmdef")
+local funcinfo, traceinfo = jutil.funcinfo, jutil.traceinfo
+local type, format = type, string.format
+local stdout, stderr = io.stdout, io.stderr
+
+-- Active flag and output file handle.
+local active, out
+
+------------------------------------------------------------------------------
+
+local startloc, startex
+
+local function fmtfunc(func, pc)
+  local fi = funcinfo(func, pc)
+  if fi.loc then
+    return fi.loc
+  elseif fi.ffid then
+    return vmdef.ffnames[fi.ffid]
+  elseif fi.addr then
+    return format("C:%x", fi.addr)
+  else
+    return "(?)"
+  end
+end
+
+-- Format trace error message.
+local function fmterr(err, info)
+  if type(err) == "number" then
+    if type(info) == "function" then info = fmtfunc(info) end
+    err = format(vmdef.traceerr[err], info)
+  end
+  return err
+end
+
+-- Dump trace states.
+local function dump_trace(what, tr, func, pc, otr, oex)
+  if what == "start" then
+    startloc = fmtfunc(func, pc)
+    startex = otr and "("..otr.."/"..oex..") " or ""
+  else
+    if what == "abort" then
+      local loc = fmtfunc(func, pc)
+      if loc ~= startloc then
+	out:write(format("[TRACE --- %s%s -- %s at %s]\n",
+	  startex, startloc, fmterr(otr, oex), loc))
+      else
+	out:write(format("[TRACE --- %s%s -- %s]\n",
+	  startex, startloc, fmterr(otr, oex)))
+      end
+    elseif what == "stop" then
+      local info = traceinfo(tr)
+      local link, ltype = info.link, info.linktype
+      if ltype == "interpreter" then
+	out:write(format("[TRACE %3s %s%s -- fallback to interpreter]\n",
+	  tr, startex, startloc))
+      elseif link == tr or link == 0 then
+	out:write(format("[TRACE %3s %s%s %s]\n",
+	  tr, startex, startloc, ltype))
+      elseif ltype == "root" then
+	out:write(format("[TRACE %3s %s%s -> %d]\n",
+	  tr, startex, startloc, link))
+      else
+	out:write(format("[TRACE %3s %s%s -> %d %s]\n",
+	  tr, startex, startloc, link, ltype))
+      end
+    else
+      out:write(format("[TRACE %s]\n", what))
+    end
+    out:flush()
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Detach dump handlers.
+local function dumpoff()
+  if active then
+    active = false
+    jit.attach(dump_trace)
+    if out and out ~= stdout and out ~= stderr then out:close() end
+    out = nil
+  end
+end
+
+-- Open the output file and attach dump handlers.
+local function dumpon(outfile)
+  if active then dumpoff() end
+  if not outfile then outfile = os.getenv("LUAJIT_VERBOSEFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stderr
+  end
+  jit.attach(dump_trace, "trace")
+  active = true
+end
+
+-- Public module functions.
+module(...)
+
+on = dumpon
+off = dumpoff
+start = dumpon -- For -j command line option.
+
diff --git a/lib/luajit/src/lauxlib.h b/lib/luajit/src/lauxlib.h
new file mode 100644
index 00000000..fed1491b
--- /dev/null
+++ b/lib/luajit/src/lauxlib.h
@@ -0,0 +1,167 @@
+/*
+** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 roberto Exp $
+** Auxiliary functions for building Lua libraries
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lauxlib_h
+#define lauxlib_h
+
+
+#include <stddef.h>
+#include <stdio.h>
+
+#include "lua.h"
+
+
+#define luaL_getn(L,i)          ((int)lua_objlen(L, i))
+#define luaL_setn(L,i,j)        ((void)0)  /* no op! */
+
+/* extra error code for `luaL_load' */
+#define LUA_ERRFILE     (LUA_ERRERR+1)
+
+typedef struct luaL_Reg {
+  const char *name;
+  lua_CFunction func;
+} luaL_Reg;
+
+LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname,
+                                const luaL_Reg *l, int nup);
+LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
+                                const luaL_Reg *l);
+LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
+LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
+LUALIB_API int (luaL_typerror) (lua_State *L, int narg, const char *tname);
+LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
+LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
+                                                          size_t *l);
+LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg,
+                                          const char *def, size_t *l);
+LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg);
+LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
+
+LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
+LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
+                                          lua_Integer def);
+
+LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
+LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
+LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
+
+LUALIB_API int   (luaL_newmetatable) (lua_State *L, const char *tname);
+LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
+
+LUALIB_API void (luaL_where) (lua_State *L, int lvl);
+LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
+
+LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def,
+                                   const char *const lst[]);
+
+LUALIB_API int (luaL_ref) (lua_State *L, int t);
+LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
+
+LUALIB_API int (luaL_loadfile) (lua_State *L, const char *filename);
+LUALIB_API int (luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz,
+                                  const char *name);
+LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
+
+LUALIB_API lua_State *(luaL_newstate) (void);
+
+
+LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
+                                                  const char *r);
+
+LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
+                                         const char *fname, int szhint);
+
+/* From Lua 5.2. */
+LUALIB_API int luaL_fileresult(lua_State *L, int stat, const char *fname);
+LUALIB_API int luaL_execresult(lua_State *L, int stat);
+LUALIB_API int (luaL_loadfilex) (lua_State *L, const char *filename,
+				 const char *mode);
+LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz,
+				   const char *name, const char *mode);
+LUALIB_API void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
+				int level);
+
+
+/*
+** ===============================================================
+** some useful macros
+** ===============================================================
+*/
+
+#define luaL_argcheck(L, cond,numarg,extramsg)	\
+		((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
+#define luaL_checkstring(L,n)	(luaL_checklstring(L, (n), NULL))
+#define luaL_optstring(L,n,d)	(luaL_optlstring(L, (n), (d), NULL))
+#define luaL_checkint(L,n)	((int)luaL_checkinteger(L, (n)))
+#define luaL_optint(L,n,d)	((int)luaL_optinteger(L, (n), (d)))
+#define luaL_checklong(L,n)	((long)luaL_checkinteger(L, (n)))
+#define luaL_optlong(L,n,d)	((long)luaL_optinteger(L, (n), (d)))
+
+#define luaL_typename(L,i)	lua_typename(L, lua_type(L,(i)))
+
+#define luaL_dofile(L, fn) \
+	(luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
+
+#define luaL_dostring(L, s) \
+	(luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
+
+#define luaL_getmetatable(L,n)	(lua_getfield(L, LUA_REGISTRYINDEX, (n)))
+
+#define luaL_opt(L,f,n,d)	(lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
+
+/*
+** {======================================================
+** Generic Buffer manipulation
+** =======================================================
+*/
+
+
+
+typedef struct luaL_Buffer {
+  char *p;			/* current position in buffer */
+  int lvl;  /* number of strings in the stack (level) */
+  lua_State *L;
+  char buffer[LUAL_BUFFERSIZE];
+} luaL_Buffer;
+
+#define luaL_addchar(B,c) \
+  ((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
+   (*(B)->p++ = (char)(c)))
+
+/* compatibility only */
+#define luaL_putchar(B,c)	luaL_addchar(B,c)
+
+#define luaL_addsize(B,n)	((B)->p += (n))
+
+LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
+LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B);
+LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
+LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
+LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
+LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
+
+
+/* }====================================================== */
+
+
+/* compatibility with ref system */
+
+/* pre-defined references */
+#define LUA_NOREF       (-2)
+#define LUA_REFNIL      (-1)
+
+#define lua_ref(L,lock) ((lock) ? luaL_ref(L, LUA_REGISTRYINDEX) : \
+      (lua_pushstring(L, "unlocked references are obsolete"), lua_error(L), 0))
+
+#define lua_unref(L,ref)        luaL_unref(L, LUA_REGISTRYINDEX, (ref))
+
+#define lua_getref(L,ref)       lua_rawgeti(L, LUA_REGISTRYINDEX, (ref))
+
+
+#define luaL_reg	luaL_Reg
+
+#endif
diff --git a/lib/luajit/src/lib_aux.c b/lib/luajit/src/lib_aux.c
new file mode 100644
index 00000000..1b01fe07
--- /dev/null
+++ b/lib/luajit/src/lib_aux.c
@@ -0,0 +1,356 @@
+/*
+** Auxiliary library for the Lua/C API.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major parts taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#define lib_aux_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_state.h"
+#include "lj_trace.h"
+#include "lj_lib.h"
+
+#if LJ_TARGET_POSIX
+#include <sys/wait.h>
+#endif
+
+/* -- I/O error handling -------------------------------------------------- */
+
+LUALIB_API int luaL_fileresult(lua_State *L, int stat, const char *fname)
+{
+  if (stat) {
+    setboolV(L->top++, 1);
+    return 1;
+  } else {
+    int en = errno;  /* Lua API calls may change this value. */
+    setnilV(L->top++);
+    if (fname)
+      lua_pushfstring(L, "%s: %s", fname, strerror(en));
+    else
+      lua_pushfstring(L, "%s", strerror(en));
+    setintV(L->top++, en);
+    lj_trace_abort(G(L));
+    return 3;
+  }
+}
+
+LUALIB_API int luaL_execresult(lua_State *L, int stat)
+{
+  if (stat != -1) {
+#if LJ_TARGET_POSIX
+    if (WIFSIGNALED(stat)) {
+      stat = WTERMSIG(stat);
+      setnilV(L->top++);
+      lua_pushliteral(L, "signal");
+    } else {
+      if (WIFEXITED(stat))
+	stat = WEXITSTATUS(stat);
+      if (stat == 0)
+	setboolV(L->top++, 1);
+      else
+	setnilV(L->top++);
+      lua_pushliteral(L, "exit");
+    }
+#else
+    if (stat == 0)
+      setboolV(L->top++, 1);
+    else
+      setnilV(L->top++);
+    lua_pushliteral(L, "exit");
+#endif
+    setintV(L->top++, stat);
+    return 3;
+  }
+  return luaL_fileresult(L, 0, NULL);
+}
+
+/* -- Module registration ------------------------------------------------- */
+
+LUALIB_API const char *luaL_findtable(lua_State *L, int idx,
+				      const char *fname, int szhint)
+{
+  const char *e;
+  lua_pushvalue(L, idx);
+  do {
+    e = strchr(fname, '.');
+    if (e == NULL) e = fname + strlen(fname);
+    lua_pushlstring(L, fname, (size_t)(e - fname));
+    lua_rawget(L, -2);
+    if (lua_isnil(L, -1)) {  /* no such field? */
+      lua_pop(L, 1);  /* remove this nil */
+      lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */
+      lua_pushlstring(L, fname, (size_t)(e - fname));
+      lua_pushvalue(L, -2);
+      lua_settable(L, -4);  /* set new table into field */
+    } else if (!lua_istable(L, -1)) {  /* field has a non-table value? */
+      lua_pop(L, 2);  /* remove table and value */
+      return fname;  /* return problematic part of the name */
+    }
+    lua_remove(L, -2);  /* remove previous table */
+    fname = e + 1;
+  } while (*e == '.');
+  return NULL;
+}
+
+static int libsize(const luaL_Reg *l)
+{
+  int size = 0;
+  for (; l->name; l++) size++;
+  return size;
+}
+
+LUALIB_API void luaL_openlib(lua_State *L, const char *libname,
+			     const luaL_Reg *l, int nup)
+{
+  lj_lib_checkfpu(L);
+  if (libname) {
+    int size = libsize(l);
+    /* check whether lib already exists */
+    luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
+    lua_getfield(L, -1, libname);  /* get _LOADED[libname] */
+    if (!lua_istable(L, -1)) {  /* not found? */
+      lua_pop(L, 1);  /* remove previous result */
+      /* try global variable (and create one if it does not exist) */
+      if (luaL_findtable(L, LUA_GLOBALSINDEX, libname, size) != NULL)
+	lj_err_callerv(L, LJ_ERR_BADMODN, libname);
+      lua_pushvalue(L, -1);
+      lua_setfield(L, -3, libname);  /* _LOADED[libname] = new table */
+    }
+    lua_remove(L, -2);  /* remove _LOADED table */
+    lua_insert(L, -(nup+1));  /* move library table to below upvalues */
+  }
+  for (; l->name; l++) {
+    int i;
+    for (i = 0; i < nup; i++)  /* copy upvalues to the top */
+      lua_pushvalue(L, -nup);
+    lua_pushcclosure(L, l->func, nup);
+    lua_setfield(L, -(nup+2), l->name);
+  }
+  lua_pop(L, nup);  /* remove upvalues */
+}
+
+LUALIB_API void luaL_register(lua_State *L, const char *libname,
+			      const luaL_Reg *l)
+{
+  luaL_openlib(L, libname, l, 0);
+}
+
+LUALIB_API const char *luaL_gsub(lua_State *L, const char *s,
+				 const char *p, const char *r)
+{
+  const char *wild;
+  size_t l = strlen(p);
+  luaL_Buffer b;
+  luaL_buffinit(L, &b);
+  while ((wild = strstr(s, p)) != NULL) {
+    luaL_addlstring(&b, s, (size_t)(wild - s));  /* push prefix */
+    luaL_addstring(&b, r);  /* push replacement in place of pattern */
+    s = wild + l;  /* continue after `p' */
+  }
+  luaL_addstring(&b, s);  /* push last suffix */
+  luaL_pushresult(&b);
+  return lua_tostring(L, -1);
+}
+
+/* -- Buffer handling ----------------------------------------------------- */
+
+#define bufflen(B)	((size_t)((B)->p - (B)->buffer))
+#define bufffree(B)	((size_t)(LUAL_BUFFERSIZE - bufflen(B)))
+
+static int emptybuffer(luaL_Buffer *B)
+{
+  size_t l = bufflen(B);
+  if (l == 0)
+    return 0;  /* put nothing on stack */
+  lua_pushlstring(B->L, B->buffer, l);
+  B->p = B->buffer;
+  B->lvl++;
+  return 1;
+}
+
+static void adjuststack(luaL_Buffer *B)
+{
+  if (B->lvl > 1) {
+    lua_State *L = B->L;
+    int toget = 1;  /* number of levels to concat */
+    size_t toplen = lua_strlen(L, -1);
+    do {
+      size_t l = lua_strlen(L, -(toget+1));
+      if (!(B->lvl - toget + 1 >= LUA_MINSTACK/2 || toplen > l))
+	break;
+      toplen += l;
+      toget++;
+    } while (toget < B->lvl);
+    lua_concat(L, toget);
+    B->lvl = B->lvl - toget + 1;
+  }
+}
+
+LUALIB_API char *luaL_prepbuffer(luaL_Buffer *B)
+{
+  if (emptybuffer(B))
+    adjuststack(B);
+  return B->buffer;
+}
+
+LUALIB_API void luaL_addlstring(luaL_Buffer *B, const char *s, size_t l)
+{
+  while (l--)
+    luaL_addchar(B, *s++);
+}
+
+LUALIB_API void luaL_addstring(luaL_Buffer *B, const char *s)
+{
+  luaL_addlstring(B, s, strlen(s));
+}
+
+LUALIB_API void luaL_pushresult(luaL_Buffer *B)
+{
+  emptybuffer(B);
+  lua_concat(B->L, B->lvl);
+  B->lvl = 1;
+}
+
+LUALIB_API void luaL_addvalue(luaL_Buffer *B)
+{
+  lua_State *L = B->L;
+  size_t vl;
+  const char *s = lua_tolstring(L, -1, &vl);
+  if (vl <= bufffree(B)) {  /* fit into buffer? */
+    memcpy(B->p, s, vl);  /* put it there */
+    B->p += vl;
+    lua_pop(L, 1);  /* remove from stack */
+  } else {
+    if (emptybuffer(B))
+      lua_insert(L, -2);  /* put buffer before new value */
+    B->lvl++;  /* add new value into B stack */
+    adjuststack(B);
+  }
+}
+
+LUALIB_API void luaL_buffinit(lua_State *L, luaL_Buffer *B)
+{
+  B->L = L;
+  B->p = B->buffer;
+  B->lvl = 0;
+}
+
+/* -- Reference management ------------------------------------------------ */
+
+#define FREELIST_REF	0
+
+/* Convert a stack index to an absolute index. */
+#define abs_index(L, i) \
+  ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : lua_gettop(L) + (i) + 1)
+
+LUALIB_API int luaL_ref(lua_State *L, int t)
+{
+  int ref;
+  t = abs_index(L, t);
+  if (lua_isnil(L, -1)) {
+    lua_pop(L, 1);  /* remove from stack */
+    return LUA_REFNIL;  /* `nil' has a unique fixed reference */
+  }
+  lua_rawgeti(L, t, FREELIST_REF);  /* get first free element */
+  ref = (int)lua_tointeger(L, -1);  /* ref = t[FREELIST_REF] */
+  lua_pop(L, 1);  /* remove it from stack */
+  if (ref != 0) {  /* any free element? */
+    lua_rawgeti(L, t, ref);  /* remove it from list */
+    lua_rawseti(L, t, FREELIST_REF);  /* (t[FREELIST_REF] = t[ref]) */
+  } else {  /* no free elements */
+    ref = (int)lua_objlen(L, t);
+    ref++;  /* create new reference */
+  }
+  lua_rawseti(L, t, ref);
+  return ref;
+}
+
+LUALIB_API void luaL_unref(lua_State *L, int t, int ref)
+{
+  if (ref >= 0) {
+    t = abs_index(L, t);
+    lua_rawgeti(L, t, FREELIST_REF);
+    lua_rawseti(L, t, ref);  /* t[ref] = t[FREELIST_REF] */
+    lua_pushinteger(L, ref);
+    lua_rawseti(L, t, FREELIST_REF);  /* t[FREELIST_REF] = ref */
+  }
+}
+
+/* -- Default allocator and panic function -------------------------------- */
+
+static int panic(lua_State *L)
+{
+  const char *s = lua_tostring(L, -1);
+  fputs("PANIC: unprotected error in call to Lua API (", stderr);
+  fputs(s ? s : "?", stderr);
+  fputc(')', stderr); fputc('\n', stderr);
+  fflush(stderr);
+  return 0;
+}
+
+#ifdef LUAJIT_USE_SYSMALLOC
+
+#if LJ_64
+#error "Must use builtin allocator for 64 bit target"
+#endif
+
+static void *mem_alloc(void *ud, void *ptr, size_t osize, size_t nsize)
+{
+  (void)ud;
+  (void)osize;
+  if (nsize == 0) {
+    free(ptr);
+    return NULL;
+  } else {
+    return realloc(ptr, nsize);
+  }
+}
+
+LUALIB_API lua_State *luaL_newstate(void)
+{
+  lua_State *L = lua_newstate(mem_alloc, NULL);
+  if (L) G(L)->panic = panic;
+  return L;
+}
+
+#else
+
+#include "lj_alloc.h"
+
+LUALIB_API lua_State *luaL_newstate(void)
+{
+  lua_State *L;
+  void *ud = lj_alloc_create();
+  if (ud == NULL) return NULL;
+#if LJ_64
+  L = lj_state_newstate(lj_alloc_f, ud);
+#else
+  L = lua_newstate(lj_alloc_f, ud);
+#endif
+  if (L) G(L)->panic = panic;
+  return L;
+}
+
+#if LJ_64
+LUA_API lua_State *lua_newstate(lua_Alloc f, void *ud)
+{
+  UNUSED(f); UNUSED(ud);
+  fputs("Must use luaL_newstate() for 64 bit target\n", stderr);
+  return NULL;
+}
+#endif
+
+#endif
+
diff --git a/lib/luajit/src/lib_base.c b/lib/luajit/src/lib_base.c
new file mode 100644
index 00000000..30e88f19
--- /dev/null
+++ b/lib/luajit/src/lib_base.c
@@ -0,0 +1,683 @@
+/*
+** Base and coroutine library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2011 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+
+#define lib_base_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#endif
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_dispatch.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+#include "lj_lib.h"
+
+/* -- Base library: checks ------------------------------------------------ */
+
+#define LJLIB_MODULE_base
+
+LJLIB_ASM(assert)		LJLIB_REC(.)
+{
+  GCstr *s;
+  lj_lib_checkany(L, 1);
+  s = lj_lib_optstr(L, 2);
+  if (s)
+    lj_err_callermsg(L, strdata(s));
+  else
+    lj_err_caller(L, LJ_ERR_ASSERT);
+  return FFH_UNREACHABLE;
+}
+
+/* ORDER LJ_T */
+LJLIB_PUSH("nil")
+LJLIB_PUSH("boolean")
+LJLIB_PUSH(top-1)  /* boolean */
+LJLIB_PUSH("userdata")
+LJLIB_PUSH("string")
+LJLIB_PUSH("upval")
+LJLIB_PUSH("thread")
+LJLIB_PUSH("proto")
+LJLIB_PUSH("function")
+LJLIB_PUSH("trace")
+LJLIB_PUSH("cdata")
+LJLIB_PUSH("table")
+LJLIB_PUSH(top-9)  /* userdata */
+LJLIB_PUSH("number")
+LJLIB_ASM_(type)		LJLIB_REC(.)
+/* Recycle the lj_lib_checkany(L, 1) from assert. */
+
+/* -- Base library: iterators --------------------------------------------- */
+
+/* This solves a circular dependency problem -- change FF_next_N as needed. */
+LJ_STATIC_ASSERT((int)FF_next == FF_next_N);
+
+LJLIB_ASM(next)
+{
+  lj_lib_checktab(L, 1);
+  return FFH_UNREACHABLE;
+}
+
+#if LJ_52 || LJ_HASFFI
+static int ffh_pairs(lua_State *L, MMS mm)
+{
+  TValue *o = lj_lib_checkany(L, 1);
+  cTValue *mo = lj_meta_lookup(L, o, mm);
+  if ((LJ_52 || tviscdata(o)) && !tvisnil(mo)) {
+    L->top = o+1;  /* Only keep one argument. */
+    copyTV(L, L->base-1, mo);  /* Replace callable. */
+    return FFH_TAILCALL;
+  } else {
+    if (!tvistab(o)) lj_err_argt(L, 1, LUA_TTABLE);
+    setfuncV(L, o-1, funcV(lj_lib_upvalue(L, 1)));
+    if (mm == MM_pairs) setnilV(o+1); else setintV(o+1, 0);
+    return FFH_RES(3);
+  }
+}
+#else
+#define ffh_pairs(L, mm)	(lj_lib_checktab(L, 1), FFH_UNREACHABLE)
+#endif
+
+LJLIB_PUSH(lastcl)
+LJLIB_ASM(pairs)
+{
+  return ffh_pairs(L, MM_pairs);
+}
+
+LJLIB_NOREGUV LJLIB_ASM(ipairs_aux)	LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_lib_checkint(L, 2);
+  return FFH_UNREACHABLE;
+}
+
+LJLIB_PUSH(lastcl)
+LJLIB_ASM(ipairs)		LJLIB_REC(.)
+{
+  return ffh_pairs(L, MM_ipairs);
+}
+
+/* -- Base library: getters and setters ----------------------------------- */
+
+LJLIB_ASM_(getmetatable)	LJLIB_REC(.)
+/* Recycle the lj_lib_checkany(L, 1) from assert. */
+
+LJLIB_ASM(setmetatable)		LJLIB_REC(.)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  GCtab *mt = lj_lib_checktabornil(L, 2);
+  if (!tvisnil(lj_meta_lookup(L, L->base, MM_metatable)))
+    lj_err_caller(L, LJ_ERR_PROTMT);
+  setgcref(t->metatable, obj2gco(mt));
+  if (mt) { lj_gc_objbarriert(L, t, mt); }
+  settabV(L, L->base-1, t);
+  return FFH_RES(1);
+}
+
+LJLIB_CF(getfenv)
+{
+  GCfunc *fn;
+  cTValue *o = L->base;
+  if (!(o < L->top && tvisfunc(o))) {
+    int level = lj_lib_optint(L, 1, 1);
+    o = lj_debug_frame(L, level, &level);
+    if (o == NULL)
+      lj_err_arg(L, 1, LJ_ERR_INVLVL);
+  }
+  fn = &gcval(o)->fn;
+  settabV(L, L->top++, isluafunc(fn) ? tabref(fn->l.env) : tabref(L->env));
+  return 1;
+}
+
+LJLIB_CF(setfenv)
+{
+  GCfunc *fn;
+  GCtab *t = lj_lib_checktab(L, 2);
+  cTValue *o = L->base;
+  if (!(o < L->top && tvisfunc(o))) {
+    int level = lj_lib_checkint(L, 1);
+    if (level == 0) {
+      /* NOBARRIER: A thread (i.e. L) is never black. */
+      setgcref(L->env, obj2gco(t));
+      return 0;
+    }
+    o = lj_debug_frame(L, level, &level);
+    if (o == NULL)
+      lj_err_arg(L, 1, LJ_ERR_INVLVL);
+  }
+  fn = &gcval(o)->fn;
+  if (!isluafunc(fn))
+    lj_err_caller(L, LJ_ERR_SETFENV);
+  setgcref(fn->l.env, obj2gco(t));
+  lj_gc_objbarrier(L, obj2gco(fn), t);
+  setfuncV(L, L->top++, fn);
+  return 1;
+}
+
+LJLIB_ASM(rawget)		LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_lib_checkany(L, 2);
+  return FFH_UNREACHABLE;
+}
+
+LJLIB_CF(rawset)		LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_lib_checkany(L, 2);
+  L->top = 1+lj_lib_checkany(L, 3);
+  lua_rawset(L, 1);
+  return 1;
+}
+
+LJLIB_CF(rawequal)		LJLIB_REC(.)
+{
+  cTValue *o1 = lj_lib_checkany(L, 1);
+  cTValue *o2 = lj_lib_checkany(L, 2);
+  setboolV(L->top-1, lj_obj_equal(o1, o2));
+  return 1;
+}
+
+#if LJ_52
+LJLIB_CF(rawlen)		LJLIB_REC(.)
+{
+  cTValue *o = L->base;
+  int32_t len;
+  if (L->top > o && tvisstr(o))
+    len = (int32_t)strV(o)->len;
+  else
+    len = (int32_t)lj_tab_len(lj_lib_checktab(L, 1));
+  setintV(L->top-1, len);
+  return 1;
+}
+#endif
+
+LJLIB_CF(unpack)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t n, i = lj_lib_optint(L, 2, 1);
+  int32_t e = (L->base+3-1 < L->top && !tvisnil(L->base+3-1)) ?
+	      lj_lib_checkint(L, 3) : (int32_t)lj_tab_len(t);
+  if (i > e) return 0;
+  n = e - i + 1;
+  if (n <= 0 || !lua_checkstack(L, n))
+    lj_err_caller(L, LJ_ERR_UNPACK);
+  do {
+    cTValue *tv = lj_tab_getint(t, i);
+    if (tv) {
+      copyTV(L, L->top++, tv);
+    } else {
+      setnilV(L->top++);
+    }
+  } while (i++ < e);
+  return n;
+}
+
+LJLIB_CF(select)		LJLIB_REC(.)
+{
+  int32_t n = (int32_t)(L->top - L->base);
+  if (n >= 1 && tvisstr(L->base) && *strVdata(L->base) == '#') {
+    setintV(L->top-1, n-1);
+    return 1;
+  } else {
+    int32_t i = lj_lib_checkint(L, 1);
+    if (i < 0) i = n + i; else if (i > n) i = n;
+    if (i < 1)
+      lj_err_arg(L, 1, LJ_ERR_IDXRNG);
+    return n - i;
+  }
+}
+
+/* -- Base library: conversions ------------------------------------------- */
+
+LJLIB_ASM(tonumber)		LJLIB_REC(.)
+{
+  int32_t base = lj_lib_optint(L, 2, 10);
+  if (base == 10) {
+    TValue *o = lj_lib_checkany(L, 1);
+    if (lj_strscan_numberobj(o)) {
+      copyTV(L, L->base-1, o);
+      return FFH_RES(1);
+    }
+#if LJ_HASFFI
+    if (tviscdata(o)) {
+      CTState *cts = ctype_cts(L);
+      CType *ct = lj_ctype_rawref(cts, cdataV(o)->ctypeid);
+      if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+      if (ctype_isnum(ct->info) || ctype_iscomplex(ct->info)) {
+	if (LJ_DUALNUM && ctype_isinteger_or_bool(ct->info) &&
+	    ct->size <= 4 && !(ct->size == 4 && (ct->info & CTF_UNSIGNED))) {
+	  int32_t i;
+	  lj_cconv_ct_tv(cts, ctype_get(cts, CTID_INT32), (uint8_t *)&i, o, 0);
+	  setintV(L->base-1, i);
+	  return FFH_RES(1);
+	}
+	lj_cconv_ct_tv(cts, ctype_get(cts, CTID_DOUBLE),
+		       (uint8_t *)&(L->base-1)->n, o, 0);
+	return FFH_RES(1);
+      }
+    }
+#endif
+  } else {
+    const char *p = strdata(lj_lib_checkstr(L, 1));
+    char *ep;
+    unsigned long ul;
+    if (base < 2 || base > 36)
+      lj_err_arg(L, 2, LJ_ERR_BASERNG);
+    ul = strtoul(p, &ep, base);
+    if (p != ep) {
+      while (lj_char_isspace((unsigned char)(*ep))) ep++;
+      if (*ep == '\0') {
+	if (LJ_DUALNUM && LJ_LIKELY(ul < 0x80000000u))
+	  setintV(L->base-1, (int32_t)ul);
+	else
+	  setnumV(L->base-1, (lua_Number)ul);
+	return FFH_RES(1);
+      }
+    }
+  }
+  setnilV(L->base-1);
+  return FFH_RES(1);
+}
+
+LJLIB_PUSH("nil")
+LJLIB_PUSH("false")
+LJLIB_PUSH("true")
+LJLIB_ASM(tostring)		LJLIB_REC(.)
+{
+  TValue *o = lj_lib_checkany(L, 1);
+  cTValue *mo;
+  L->top = o+1;  /* Only keep one argument. */
+  if (!tvisnil(mo = lj_meta_lookup(L, o, MM_tostring))) {
+    copyTV(L, L->base-1, mo);  /* Replace callable. */
+    return FFH_TAILCALL;
+  } else {
+    GCstr *s;
+    if (tvisnumber(o)) {
+      s = lj_str_fromnumber(L, o);
+    } else if (tvispri(o)) {
+      s = strV(lj_lib_upvalue(L, -(int32_t)itype(o)));
+    } else {
+      if (tvisfunc(o) && isffunc(funcV(o)))
+	lua_pushfstring(L, "function: builtin#%d", funcV(o)->c.ffid);
+      else
+	lua_pushfstring(L, "%s: %p", lj_typename(o), lua_topointer(L, 1));
+      /* Note: lua_pushfstring calls the GC which may invalidate o. */
+      s = strV(L->top-1);
+    }
+    setstrV(L, L->base-1, s);
+    return FFH_RES(1);
+  }
+}
+
+/* -- Base library: throw and catch errors -------------------------------- */
+
+LJLIB_CF(error)
+{
+  int32_t level = lj_lib_optint(L, 2, 1);
+  lua_settop(L, 1);
+  if (lua_isstring(L, 1) && level > 0) {
+    luaL_where(L, level);
+    lua_pushvalue(L, 1);
+    lua_concat(L, 2);
+  }
+  return lua_error(L);
+}
+
+LJLIB_ASM(pcall)		LJLIB_REC(.)
+{
+  lj_lib_checkany(L, 1);
+  lj_lib_checkfunc(L, 2);  /* For xpcall only. */
+  return FFH_UNREACHABLE;
+}
+LJLIB_ASM_(xpcall)		LJLIB_REC(.)
+
+/* -- Base library: load Lua code ----------------------------------------- */
+
+static int load_aux(lua_State *L, int status, int envarg)
+{
+  if (status == 0) {
+    if (tvistab(L->base+envarg-1)) {
+      GCfunc *fn = funcV(L->top-1);
+      GCtab *t = tabV(L->base+envarg-1);
+      setgcref(fn->c.env, obj2gco(t));
+      lj_gc_objbarrier(L, fn, t);
+    }
+    return 1;
+  } else {
+    setnilV(L->top-2);
+    return 2;
+  }
+}
+
+LJLIB_CF(loadfile)
+{
+  GCstr *fname = lj_lib_optstr(L, 1);
+  GCstr *mode = lj_lib_optstr(L, 2);
+  int status;
+  lua_settop(L, 3);  /* Ensure env arg exists. */
+  status = luaL_loadfilex(L, fname ? strdata(fname) : NULL,
+			  mode ? strdata(mode) : NULL);
+  return load_aux(L, status, 3);
+}
+
+static const char *reader_func(lua_State *L, void *ud, size_t *size)
+{
+  UNUSED(ud);
+  luaL_checkstack(L, 2, "too many nested functions");
+  copyTV(L, L->top++, L->base);
+  lua_call(L, 0, 1);  /* Call user-supplied function. */
+  L->top--;
+  if (tvisnil(L->top)) {
+    *size = 0;
+    return NULL;
+  } else if (tvisstr(L->top) || tvisnumber(L->top)) {
+    copyTV(L, L->base+4, L->top);  /* Anchor string in reserved stack slot. */
+    return lua_tolstring(L, 5, size);
+  } else {
+    lj_err_caller(L, LJ_ERR_RDRSTR);
+    return NULL;
+  }
+}
+
+LJLIB_CF(load)
+{
+  GCstr *name = lj_lib_optstr(L, 2);
+  GCstr *mode = lj_lib_optstr(L, 3);
+  int status;
+  if (L->base < L->top && (tvisstr(L->base) || tvisnumber(L->base))) {
+    GCstr *s = lj_lib_checkstr(L, 1);
+    lua_settop(L, 4);  /* Ensure env arg exists. */
+    status = luaL_loadbufferx(L, strdata(s), s->len, strdata(name ? name : s),
+			      mode ? strdata(mode) : NULL);
+  } else {
+    lj_lib_checkfunc(L, 1);
+    lua_settop(L, 5);  /* Reserve a slot for the string from the reader. */
+    status = lua_loadx(L, reader_func, NULL, name ? strdata(name) : "=(load)",
+		       mode ? strdata(mode) : NULL);
+  }
+  return load_aux(L, status, 4);
+}
+
+LJLIB_CF(loadstring)
+{
+  return lj_cf_load(L);
+}
+
+LJLIB_CF(dofile)
+{
+  GCstr *fname = lj_lib_optstr(L, 1);
+  setnilV(L->top);
+  L->top = L->base+1;
+  if (luaL_loadfile(L, fname ? strdata(fname) : NULL) != 0)
+    lua_error(L);
+  lua_call(L, 0, LUA_MULTRET);
+  return (int)(L->top - L->base) - 1;
+}
+
+/* -- Base library: GC control -------------------------------------------- */
+
+LJLIB_CF(gcinfo)
+{
+  setintV(L->top++, (G(L)->gc.total >> 10));
+  return 1;
+}
+
+LJLIB_CF(collectgarbage)
+{
+  int opt = lj_lib_checkopt(L, 1, LUA_GCCOLLECT,  /* ORDER LUA_GC* */
+    "\4stop\7restart\7collect\5count\1\377\4step\10setpause\12setstepmul");
+  int32_t data = lj_lib_optint(L, 2, 0);
+  if (opt == LUA_GCCOUNT) {
+    setnumV(L->top, (lua_Number)G(L)->gc.total/1024.0);
+  } else {
+    int res = lua_gc(L, opt, data);
+    if (opt == LUA_GCSTEP)
+      setboolV(L->top, res);
+    else
+      setintV(L->top, res);
+  }
+  L->top++;
+  return 1;
+}
+
+/* -- Base library: miscellaneous functions ------------------------------- */
+
+LJLIB_PUSH(top-2)  /* Upvalue holds weak table. */
+LJLIB_CF(newproxy)
+{
+  lua_settop(L, 1);
+  lua_newuserdata(L, 0);
+  if (lua_toboolean(L, 1) == 0) {  /* newproxy(): without metatable. */
+    return 1;
+  } else if (lua_isboolean(L, 1)) {  /* newproxy(true): with metatable. */
+    lua_newtable(L);
+    lua_pushvalue(L, -1);
+    lua_pushboolean(L, 1);
+    lua_rawset(L, lua_upvalueindex(1));  /* Remember mt in weak table. */
+  } else {  /* newproxy(proxy): inherit metatable. */
+    int validproxy = 0;
+    if (lua_getmetatable(L, 1)) {
+      lua_rawget(L, lua_upvalueindex(1));
+      validproxy = lua_toboolean(L, -1);
+      lua_pop(L, 1);
+    }
+    if (!validproxy)
+      lj_err_arg(L, 1, LJ_ERR_NOPROXY);
+    lua_getmetatable(L, 1);
+  }
+  lua_setmetatable(L, 2);
+  return 1;
+}
+
+LJLIB_PUSH("tostring")
+LJLIB_CF(print)
+{
+  ptrdiff_t i, nargs = L->top - L->base;
+  cTValue *tv = lj_tab_getstr(tabref(L->env), strV(lj_lib_upvalue(L, 1)));
+  int shortcut;
+  if (tv && !tvisnil(tv)) {
+    copyTV(L, L->top++, tv);
+  } else {
+    setstrV(L, L->top++, strV(lj_lib_upvalue(L, 1)));
+    lua_gettable(L, LUA_GLOBALSINDEX);
+    tv = L->top-1;
+  }
+  shortcut = (tvisfunc(tv) && funcV(tv)->c.ffid == FF_tostring);
+  for (i = 0; i < nargs; i++) {
+    const char *str;
+    size_t size;
+    cTValue *o = &L->base[i];
+    if (shortcut && tvisstr(o)) {
+      str = strVdata(o);
+      size = strV(o)->len;
+    } else if (shortcut && tvisint(o)) {
+      char buf[LJ_STR_INTBUF];
+      char *p = lj_str_bufint(buf, intV(o));
+      size = (size_t)(buf+LJ_STR_INTBUF-p);
+      str = p;
+    } else if (shortcut && tvisnum(o)) {
+      char buf[LJ_STR_NUMBUF];
+      size = lj_str_bufnum(buf, o);
+      str = buf;
+    } else {
+      copyTV(L, L->top+1, o);
+      copyTV(L, L->top, L->top-1);
+      L->top += 2;
+      lua_call(L, 1, 1);
+      str = lua_tolstring(L, -1, &size);
+      if (!str)
+	lj_err_caller(L, LJ_ERR_PRTOSTR);
+      L->top--;
+    }
+    if (i)
+      putchar('\t');
+    fwrite(str, 1, size, stdout);
+  }
+  putchar('\n');
+  return 0;
+}
+
+LJLIB_PUSH(top-3)
+LJLIB_SET(_VERSION)
+
+#include "lj_libdef.h"
+
+/* -- Coroutine library --------------------------------------------------- */
+
+#define LJLIB_MODULE_coroutine
+
+LJLIB_CF(coroutine_status)
+{
+  const char *s;
+  lua_State *co;
+  if (!(L->top > L->base && tvisthread(L->base)))
+    lj_err_arg(L, 1, LJ_ERR_NOCORO);
+  co = threadV(L->base);
+  if (co == L) s = "running";
+  else if (co->status == LUA_YIELD) s = "suspended";
+  else if (co->status != 0) s = "dead";
+  else if (co->base > tvref(co->stack)+1) s = "normal";
+  else if (co->top == co->base) s = "dead";
+  else s = "suspended";
+  lua_pushstring(L, s);
+  return 1;
+}
+
+LJLIB_CF(coroutine_running)
+{
+#if LJ_52
+  int ismain = lua_pushthread(L);
+  setboolV(L->top++, ismain);
+  return 2;
+#else
+  if (lua_pushthread(L))
+    setnilV(L->top++);
+  return 1;
+#endif
+}
+
+LJLIB_CF(coroutine_create)
+{
+  lua_State *L1;
+  if (!(L->base < L->top && tvisfunc(L->base)))
+    lj_err_argt(L, 1, LUA_TFUNCTION);
+  L1 = lua_newthread(L);
+  setfuncV(L, L1->top++, funcV(L->base));
+  return 1;
+}
+
+LJLIB_ASM(coroutine_yield)
+{
+  lj_err_caller(L, LJ_ERR_CYIELD);
+  return FFH_UNREACHABLE;
+}
+
+static int ffh_resume(lua_State *L, lua_State *co, int wrap)
+{
+  if (co->cframe != NULL || co->status > LUA_YIELD ||
+      (co->status == 0 && co->top == co->base)) {
+    ErrMsg em = co->cframe ? LJ_ERR_CORUN : LJ_ERR_CODEAD;
+    if (wrap) lj_err_caller(L, em);
+    setboolV(L->base-1, 0);
+    setstrV(L, L->base, lj_err_str(L, em));
+    return FFH_RES(2);
+  }
+  lj_state_growstack(co, (MSize)(L->top - L->base));
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(coroutine_resume)
+{
+  if (!(L->top > L->base && tvisthread(L->base)))
+    lj_err_arg(L, 1, LJ_ERR_NOCORO);
+  return ffh_resume(L, threadV(L->base), 0);
+}
+
+LJLIB_NOREG LJLIB_ASM(coroutine_wrap_aux)
+{
+  return ffh_resume(L, threadV(lj_lib_upvalue(L, 1)), 1);
+}
+
+/* Inline declarations. */
+LJ_ASMF void lj_ff_coroutine_wrap_aux(void);
+#if !(LJ_TARGET_MIPS && defined(ljamalg_c))
+LJ_FUNCA_NORET void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L,
+							  lua_State *co);
+#endif
+
+/* Error handler, called from assembler VM. */
+void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L, lua_State *co)
+{
+  co->top--; copyTV(L, L->top, co->top); L->top++;
+  if (tvisstr(L->top-1))
+    lj_err_callermsg(L, strVdata(L->top-1));
+  else
+    lj_err_run(L);
+}
+
+/* Forward declaration. */
+static void setpc_wrap_aux(lua_State *L, GCfunc *fn);
+
+LJLIB_CF(coroutine_wrap)
+{
+  lj_cf_coroutine_create(L);
+  lj_lib_pushcc(L, lj_ffh_coroutine_wrap_aux, FF_coroutine_wrap_aux, 1);
+  setpc_wrap_aux(L, funcV(L->top-1));
+  return 1;
+}
+
+#include "lj_libdef.h"
+
+/* Fix the PC of wrap_aux. Really ugly workaround. */
+static void setpc_wrap_aux(lua_State *L, GCfunc *fn)
+{
+  setmref(fn->c.pc, &L2GG(L)->bcff[lj_lib_init_coroutine[1]+2]);
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void newproxy_weaktable(lua_State *L)
+{
+  /* NOBARRIER: The table is new (marked white). */
+  GCtab *t = lj_tab_new(L, 0, 1);
+  settabV(L, L->top++, t);
+  setgcref(t->metatable, obj2gco(t));
+  setstrV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "__mode")),
+	    lj_str_newlit(L, "kv"));
+  t->nomm = (uint8_t)(~(1u<<MM_mode));
+}
+
+LUALIB_API int luaopen_base(lua_State *L)
+{
+  /* NOBARRIER: Table and value are the same. */
+  GCtab *env = tabref(L->env);
+  settabV(L, lj_tab_setstr(L, env, lj_str_newlit(L, "_G")), env);
+  lua_pushliteral(L, LUA_VERSION);  /* top-3. */
+  newproxy_weaktable(L);  /* top-2. */
+  LJ_LIB_REG(L, "_G", base);
+  LJ_LIB_REG(L, LUA_COLIBNAME, coroutine);
+  return 2;
+}
+
diff --git a/lib/luajit/src/lib_bit.c b/lib/luajit/src/lib_bit.c
new file mode 100644
index 00000000..739924b0
--- /dev/null
+++ b/lib/luajit/src/lib_bit.c
@@ -0,0 +1,74 @@
+/*
+** Bit manipulation library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_bit_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_bit
+
+LJLIB_ASM(bit_tobit)		LJLIB_REC(bit_unary IR_TOBIT)
+{
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(bit_bnot)		LJLIB_REC(bit_unary IR_BNOT)
+LJLIB_ASM_(bit_bswap)		LJLIB_REC(bit_unary IR_BSWAP)
+
+LJLIB_ASM(bit_lshift)		LJLIB_REC(bit_shift IR_BSHL)
+{
+  lj_lib_checknumber(L, 1);
+  lj_lib_checkbit(L, 2);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(bit_rshift)		LJLIB_REC(bit_shift IR_BSHR)
+LJLIB_ASM_(bit_arshift)		LJLIB_REC(bit_shift IR_BSAR)
+LJLIB_ASM_(bit_rol)		LJLIB_REC(bit_shift IR_BROL)
+LJLIB_ASM_(bit_ror)		LJLIB_REC(bit_shift IR_BROR)
+
+LJLIB_ASM(bit_band)		LJLIB_REC(bit_nary IR_BAND)
+{
+  int i = 0;
+  do { lj_lib_checknumber(L, ++i); } while (L->base+i < L->top);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(bit_bor)		LJLIB_REC(bit_nary IR_BOR)
+LJLIB_ASM_(bit_bxor)		LJLIB_REC(bit_nary IR_BXOR)
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(bit_tohex)
+{
+  uint32_t b = (uint32_t)lj_lib_checkbit(L, 1);
+  int32_t i, n = L->base+1 >= L->top ? 8 : lj_lib_checkbit(L, 2);
+  const char *hexdigits = "0123456789abcdef";
+  char buf[8];
+  if (n < 0) { n = -n; hexdigits = "0123456789ABCDEF"; }
+  if (n > 8) n = 8;
+  for (i = n; --i >= 0; ) { buf[i] = hexdigits[b & 15]; b >>= 4; }
+  lua_pushlstring(L, buf, (size_t)n);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_bit(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_BITLIBNAME, bit);
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_debug.c b/lib/luajit/src/lib_debug.c
new file mode 100644
index 00000000..97f032f1
--- /dev/null
+++ b/lib/luajit/src/lib_debug.c
@@ -0,0 +1,405 @@
+/*
+** Debug library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_debug_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_debug
+
+LJLIB_CF(debug_getregistry)
+{
+  copyTV(L, L->top++, registry(L));
+  return 1;
+}
+
+LJLIB_CF(debug_getmetatable)
+{
+  lj_lib_checkany(L, 1);
+  if (!lua_getmetatable(L, 1)) {
+    setnilV(L->top-1);
+  }
+  return 1;
+}
+
+LJLIB_CF(debug_setmetatable)
+{
+  lj_lib_checktabornil(L, 2);
+  L->top = L->base+2;
+  lua_setmetatable(L, 1);
+#if !LJ_52
+  setboolV(L->top-1, 1);
+#endif
+  return 1;
+}
+
+LJLIB_CF(debug_getfenv)
+{
+  lj_lib_checkany(L, 1);
+  lua_getfenv(L, 1);
+  return 1;
+}
+
+LJLIB_CF(debug_setfenv)
+{
+  lj_lib_checktab(L, 2);
+  L->top = L->base+2;
+  if (!lua_setfenv(L, 1))
+    lj_err_caller(L, LJ_ERR_SETFENV);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void settabss(lua_State *L, const char *i, const char *v)
+{
+  lua_pushstring(L, v);
+  lua_setfield(L, -2, i);
+}
+
+static void settabsi(lua_State *L, const char *i, int v)
+{
+  lua_pushinteger(L, v);
+  lua_setfield(L, -2, i);
+}
+
+static void settabsb(lua_State *L, const char *i, int v)
+{
+  lua_pushboolean(L, v);
+  lua_setfield(L, -2, i);
+}
+
+static lua_State *getthread(lua_State *L, int *arg)
+{
+  if (L->base < L->top && tvisthread(L->base)) {
+    *arg = 1;
+    return threadV(L->base);
+  } else {
+    *arg = 0;
+    return L;
+  }
+}
+
+static void treatstackoption(lua_State *L, lua_State *L1, const char *fname)
+{
+  if (L == L1) {
+    lua_pushvalue(L, -2);
+    lua_remove(L, -3);
+  }
+  else
+    lua_xmove(L1, L, 1);
+  lua_setfield(L, -2, fname);
+}
+
+LJLIB_CF(debug_getinfo)
+{
+  lj_Debug ar;
+  int arg, opt_f = 0, opt_L = 0;
+  lua_State *L1 = getthread(L, &arg);
+  const char *options = luaL_optstring(L, arg+2, "flnSu");
+  if (lua_isnumber(L, arg+1)) {
+    if (!lua_getstack(L1, (int)lua_tointeger(L, arg+1), (lua_Debug *)&ar)) {
+      setnilV(L->top-1);
+      return 1;
+    }
+  } else if (L->base+arg < L->top && tvisfunc(L->base+arg)) {
+    options = lua_pushfstring(L, ">%s", options);
+    setfuncV(L1, L1->top++, funcV(L->base+arg));
+  } else {
+    lj_err_arg(L, arg+1, LJ_ERR_NOFUNCL);
+  }
+  if (!lj_debug_getinfo(L1, options, &ar, 1))
+    lj_err_arg(L, arg+2, LJ_ERR_INVOPT);
+  lua_createtable(L, 0, 16);  /* Create result table. */
+  for (; *options; options++) {
+    switch (*options) {
+    case 'S':
+      settabss(L, "source", ar.source);
+      settabss(L, "short_src", ar.short_src);
+      settabsi(L, "linedefined", ar.linedefined);
+      settabsi(L, "lastlinedefined", ar.lastlinedefined);
+      settabss(L, "what", ar.what);
+      break;
+    case 'l':
+      settabsi(L, "currentline", ar.currentline);
+      break;
+    case 'u':
+      settabsi(L, "nups", ar.nups);
+      settabsi(L, "nparams", ar.nparams);
+      settabsb(L, "isvararg", ar.isvararg);
+      break;
+    case 'n':
+      settabss(L, "name", ar.name);
+      settabss(L, "namewhat", ar.namewhat);
+      break;
+    case 'f': opt_f = 1; break;
+    case 'L': opt_L = 1; break;
+    default: break;
+    }
+  }
+  if (opt_L) treatstackoption(L, L1, "activelines");
+  if (opt_f) treatstackoption(L, L1, "func");
+  return 1;  /* Return result table. */
+}
+
+LJLIB_CF(debug_getlocal)
+{
+  int arg;
+  lua_State *L1 = getthread(L, &arg);
+  lua_Debug ar;
+  const char *name;
+  int slot = lj_lib_checkint(L, arg+2);
+  if (tvisfunc(L->base+arg)) {
+    L->top = L->base+arg+1;
+    lua_pushstring(L, lua_getlocal(L, NULL, slot));
+    return 1;
+  }
+  if (!lua_getstack(L1, lj_lib_checkint(L, arg+1), &ar))
+    lj_err_arg(L, arg+1, LJ_ERR_LVLRNG);
+  name = lua_getlocal(L1, &ar, slot);
+  if (name) {
+    lua_xmove(L1, L, 1);
+    lua_pushstring(L, name);
+    lua_pushvalue(L, -2);
+    return 2;
+  } else {
+    setnilV(L->top-1);
+    return 1;
+  }
+}
+
+LJLIB_CF(debug_setlocal)
+{
+  int arg;
+  lua_State *L1 = getthread(L, &arg);
+  lua_Debug ar;
+  TValue *tv;
+  if (!lua_getstack(L1, lj_lib_checkint(L, arg+1), &ar))
+    lj_err_arg(L, arg+1, LJ_ERR_LVLRNG);
+  tv = lj_lib_checkany(L, arg+3);
+  copyTV(L1, L1->top++, tv);
+  lua_pushstring(L, lua_setlocal(L1, &ar, lj_lib_checkint(L, arg+2)));
+  return 1;
+}
+
+static int debug_getupvalue(lua_State *L, int get)
+{
+  int32_t n = lj_lib_checkint(L, 2);
+  const char *name;
+  lj_lib_checkfunc(L, 1);
+  name = get ? lua_getupvalue(L, 1, n) : lua_setupvalue(L, 1, n);
+  if (name) {
+    lua_pushstring(L, name);
+    if (!get) return 1;
+    copyTV(L, L->top, L->top-2);
+    L->top++;
+    return 2;
+  }
+  return 0;
+}
+
+LJLIB_CF(debug_getupvalue)
+{
+  return debug_getupvalue(L, 1);
+}
+
+LJLIB_CF(debug_setupvalue)
+{
+  lj_lib_checkany(L, 3);
+  return debug_getupvalue(L, 0);
+}
+
+LJLIB_CF(debug_upvalueid)
+{
+  GCfunc *fn = lj_lib_checkfunc(L, 1);
+  int32_t n = lj_lib_checkint(L, 2) - 1;
+  if ((uint32_t)n >= fn->l.nupvalues)
+    lj_err_arg(L, 2, LJ_ERR_IDXRNG);
+  setlightudV(L->top-1, isluafunc(fn) ? (void *)gcref(fn->l.uvptr[n]) :
+					(void *)&fn->c.upvalue[n]);
+  return 1;
+}
+
+LJLIB_CF(debug_upvaluejoin)
+{
+  GCfunc *fn[2];
+  GCRef *p[2];
+  int i;
+  for (i = 0; i < 2; i++) {
+    int32_t n;
+    fn[i] = lj_lib_checkfunc(L, 2*i+1);
+    if (!isluafunc(fn[i]))
+      lj_err_arg(L, 2*i+1, LJ_ERR_NOLFUNC);
+    n = lj_lib_checkint(L, 2*i+2) - 1;
+    if ((uint32_t)n >= fn[i]->l.nupvalues)
+      lj_err_arg(L, 2*i+2, LJ_ERR_IDXRNG);
+    p[i] = &fn[i]->l.uvptr[n];
+  }
+  setgcrefr(*p[0], *p[1]);
+  lj_gc_objbarrier(L, fn[0], gcref(*p[1]));
+  return 0;
+}
+
+#if LJ_52
+LJLIB_CF(debug_getuservalue)
+{
+  TValue *o = L->base;
+  if (o < L->top && tvisudata(o))
+    settabV(L, o, tabref(udataV(o)->env));
+  else
+    setnilV(o);
+  L->top = o+1;
+  return 1;
+}
+
+LJLIB_CF(debug_setuservalue)
+{
+  TValue *o = L->base;
+  if (!(o < L->top && tvisudata(o)))
+    lj_err_argt(L, 1, LUA_TUSERDATA);
+  if (!(o+1 < L->top && tvistab(o+1)))
+    lj_err_argt(L, 2, LUA_TTABLE);
+  L->top = o+2;
+  lua_setfenv(L, 1);
+  return 1;
+}
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+static const char KEY_HOOK = 'h';
+
+static void hookf(lua_State *L, lua_Debug *ar)
+{
+  static const char *const hooknames[] =
+    {"call", "return", "line", "count", "tail return"};
+  lua_pushlightuserdata(L, (void *)&KEY_HOOK);
+  lua_rawget(L, LUA_REGISTRYINDEX);
+  if (lua_isfunction(L, -1)) {
+    lua_pushstring(L, hooknames[(int)ar->event]);
+    if (ar->currentline >= 0)
+      lua_pushinteger(L, ar->currentline);
+    else lua_pushnil(L);
+    lua_call(L, 2, 0);
+  }
+}
+
+static int makemask(const char *smask, int count)
+{
+  int mask = 0;
+  if (strchr(smask, 'c')) mask |= LUA_MASKCALL;
+  if (strchr(smask, 'r')) mask |= LUA_MASKRET;
+  if (strchr(smask, 'l')) mask |= LUA_MASKLINE;
+  if (count > 0) mask |= LUA_MASKCOUNT;
+  return mask;
+}
+
+static char *unmakemask(int mask, char *smask)
+{
+  int i = 0;
+  if (mask & LUA_MASKCALL) smask[i++] = 'c';
+  if (mask & LUA_MASKRET) smask[i++] = 'r';
+  if (mask & LUA_MASKLINE) smask[i++] = 'l';
+  smask[i] = '\0';
+  return smask;
+}
+
+LJLIB_CF(debug_sethook)
+{
+  int arg, mask, count;
+  lua_Hook func;
+  (void)getthread(L, &arg);
+  if (lua_isnoneornil(L, arg+1)) {
+    lua_settop(L, arg+1);
+    func = NULL; mask = 0; count = 0;  /* turn off hooks */
+  } else {
+    const char *smask = luaL_checkstring(L, arg+2);
+    luaL_checktype(L, arg+1, LUA_TFUNCTION);
+    count = luaL_optint(L, arg+3, 0);
+    func = hookf; mask = makemask(smask, count);
+  }
+  lua_pushlightuserdata(L, (void *)&KEY_HOOK);
+  lua_pushvalue(L, arg+1);
+  lua_rawset(L, LUA_REGISTRYINDEX);
+  lua_sethook(L, func, mask, count);
+  return 0;
+}
+
+LJLIB_CF(debug_gethook)
+{
+  char buff[5];
+  int mask = lua_gethookmask(L);
+  lua_Hook hook = lua_gethook(L);
+  if (hook != NULL && hook != hookf) {  /* external hook? */
+    lua_pushliteral(L, "external hook");
+  } else {
+    lua_pushlightuserdata(L, (void *)&KEY_HOOK);
+    lua_rawget(L, LUA_REGISTRYINDEX);   /* get hook */
+  }
+  lua_pushstring(L, unmakemask(mask, buff));
+  lua_pushinteger(L, lua_gethookcount(L));
+  return 3;
+}
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(debug_debug)
+{
+  for (;;) {
+    char buffer[250];
+    fputs("lua_debug> ", stderr);
+    if (fgets(buffer, sizeof(buffer), stdin) == 0 ||
+	strcmp(buffer, "cont\n") == 0)
+      return 0;
+    if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") ||
+	lua_pcall(L, 0, 0, 0)) {
+      fputs(lua_tostring(L, -1), stderr);
+      fputs("\n", stderr);
+    }
+    lua_settop(L, 0);  /* remove eventual returns */
+  }
+}
+
+/* ------------------------------------------------------------------------ */
+
+#define LEVELS1	12	/* size of the first part of the stack */
+#define LEVELS2	10	/* size of the second part of the stack */
+
+LJLIB_CF(debug_traceback)
+{
+  int arg;
+  lua_State *L1 = getthread(L, &arg);
+  const char *msg = lua_tostring(L, arg+1);
+  if (msg == NULL && L->top > L->base+arg)
+    L->top = L->base+arg+1;
+  else
+    luaL_traceback(L, L1, msg, lj_lib_optint(L, arg+2, (L == L1)));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_debug(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_DBLIBNAME, debug);
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_ffi.c b/lib/luajit/src/lib_ffi.c
new file mode 100644
index 00000000..e789ad6c
--- /dev/null
+++ b/lib/luajit/src/lib_ffi.c
@@ -0,0 +1,850 @@
+/*
+** FFI library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_ffi_c
+#define LUA_LIB
+
+#include <errno.h>
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_ctype.h"
+#include "lj_cparse.h"
+#include "lj_cdata.h"
+#include "lj_cconv.h"
+#include "lj_carith.h"
+#include "lj_ccall.h"
+#include "lj_ccallback.h"
+#include "lj_clib.h"
+#include "lj_ff.h"
+#include "lj_lib.h"
+
+/* -- C type checks ------------------------------------------------------- */
+
+/* Check first argument for a C type and returns its ID. */
+static CTypeID ffi_checkctype(lua_State *L, CTState *cts, TValue *param)
+{
+  TValue *o = L->base;
+  if (!(o < L->top)) {
+  err_argtype:
+    lj_err_argtype(L, 1, "C type");
+  }
+  if (tvisstr(o)) {  /* Parse an abstract C type declaration. */
+    GCstr *s = strV(o);
+    CPState cp;
+    int errcode;
+    cp.L = L;
+    cp.cts = cts;
+    cp.srcname = strdata(s);
+    cp.p = strdata(s);
+    cp.param = param;
+    cp.mode = CPARSE_MODE_ABSTRACT|CPARSE_MODE_NOIMPLICIT;
+    errcode = lj_cparse(&cp);
+    if (errcode) lj_err_throw(L, errcode);  /* Propagate errors. */
+    return cp.val.id;
+  } else {
+    GCcdata *cd;
+    if (!tviscdata(o)) goto err_argtype;
+    if (param && param < L->top) lj_err_arg(L, 1, LJ_ERR_FFI_NUMPARAM);
+    cd = cdataV(o);
+    return cd->ctypeid == CTID_CTYPEID ? *(CTypeID *)cdataptr(cd) : cd->ctypeid;
+  }
+}
+
+/* Check argument for C data and return it. */
+static GCcdata *ffi_checkcdata(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tviscdata(o)))
+    lj_err_argt(L, narg, LUA_TCDATA);
+  return cdataV(o);
+}
+
+/* Convert argument to C pointer. */
+static void *ffi_checkptr(lua_State *L, int narg, CTypeID id)
+{
+  CTState *cts = ctype_cts(L);
+  TValue *o = L->base + narg-1;
+  void *p;
+  if (o >= L->top)
+    lj_err_arg(L, narg, LJ_ERR_NOVAL);
+  lj_cconv_ct_tv(cts, ctype_get(cts, id), (uint8_t *)&p, o, CCF_ARG(narg));
+  return p;
+}
+
+/* Convert argument to int32_t. */
+static int32_t ffi_checkint(lua_State *L, int narg)
+{
+  CTState *cts = ctype_cts(L);
+  TValue *o = L->base + narg-1;
+  int32_t i;
+  if (o >= L->top)
+    lj_err_arg(L, narg, LJ_ERR_NOVAL);
+  lj_cconv_ct_tv(cts, ctype_get(cts, CTID_INT32), (uint8_t *)&i, o,
+		 CCF_ARG(narg));
+  return i;
+}
+
+/* -- C type metamethods -------------------------------------------------- */
+
+#define LJLIB_MODULE_ffi_meta
+
+/* Handle ctype __index/__newindex metamethods. */
+static int ffi_index_meta(lua_State *L, CTState *cts, CType *ct, MMS mm)
+{
+  CTypeID id = ctype_typeid(cts, ct);
+  cTValue *tv = lj_ctype_meta(cts, id, mm);
+  TValue *base = L->base;
+  if (!tv) {
+    const char *s;
+  err_index:
+    s = strdata(lj_ctype_repr(L, id, NULL));
+    if (tvisstr(L->base+1)) {
+      lj_err_callerv(L, LJ_ERR_FFI_BADMEMBER, s, strVdata(L->base+1));
+    } else {
+      const char *key = tviscdata(L->base+1) ?
+	strdata(lj_ctype_repr(L, cdataV(L->base+1)->ctypeid, NULL)) :
+	lj_typename(L->base+1);
+      lj_err_callerv(L, LJ_ERR_FFI_BADIDXW, s, key);
+    }
+  }
+  if (!tvisfunc(tv)) {
+    if (mm == MM_index) {
+      cTValue *o = lj_meta_tget(L, tv, base+1);
+      if (o) {
+	if (tvisnil(o)) goto err_index;
+	copyTV(L, L->top-1, o);
+	return 1;
+      }
+    } else {
+      TValue *o = lj_meta_tset(L, tv, base+1);
+      if (o) {
+	copyTV(L, o, base+2);
+	return 0;
+      }
+    }
+    tv = L->top-1;
+  }
+  return lj_meta_tailcall(L, tv);
+}
+
+LJLIB_CF(ffi_meta___index)	LJLIB_REC(cdata_index 0)
+{
+  CTState *cts = ctype_cts(L);
+  CTInfo qual = 0;
+  CType *ct;
+  uint8_t *p;
+  TValue *o = L->base;
+  if (!(o+1 < L->top && tviscdata(o)))  /* Also checks for presence of key. */
+    lj_err_argt(L, 1, LUA_TCDATA);
+  ct = lj_cdata_index(cts, cdataV(o), o+1, &p, &qual);
+  if ((qual & 1))
+    return ffi_index_meta(L, cts, ct, MM_index);
+  if (lj_cdata_get(cts, ct, L->top-1, p))
+    lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_meta___newindex)	LJLIB_REC(cdata_index 1)
+{
+  CTState *cts = ctype_cts(L);
+  CTInfo qual = 0;
+  CType *ct;
+  uint8_t *p;
+  TValue *o = L->base;
+  if (!(o+2 < L->top && tviscdata(o)))  /* Also checks for key and value. */
+    lj_err_argt(L, 1, LUA_TCDATA);
+  ct = lj_cdata_index(cts, cdataV(o), o+1, &p, &qual);
+  if ((qual & 1)) {
+    if ((qual & CTF_CONST))
+      lj_err_caller(L, LJ_ERR_FFI_WRCONST);
+    return ffi_index_meta(L, cts, ct, MM_newindex);
+  }
+  lj_cdata_set(cts, ct, p, o+2, qual);
+  return 0;
+}
+
+/* Common handler for cdata arithmetic. */
+static int ffi_arith(lua_State *L)
+{
+  MMS mm = (MMS)(curr_func(L)->c.ffid - (int)FF_ffi_meta___eq + (int)MM_eq);
+  return lj_carith_op(L, mm);
+}
+
+/* The following functions must be in contiguous ORDER MM. */
+LJLIB_CF(ffi_meta___eq)		LJLIB_REC(cdata_arith MM_eq)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___len)	LJLIB_REC(cdata_arith MM_len)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___lt)		LJLIB_REC(cdata_arith MM_lt)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___le)		LJLIB_REC(cdata_arith MM_le)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___concat)	LJLIB_REC(cdata_arith MM_concat)
+{
+  return ffi_arith(L);
+}
+
+/* Forward declaration. */
+static int lj_cf_ffi_new(lua_State *L);
+
+LJLIB_CF(ffi_meta___call)	LJLIB_REC(cdata_call)
+{
+  CTState *cts = ctype_cts(L);
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  CTypeID id = cd->ctypeid;
+  CType *ct;
+  cTValue *tv;
+  MMS mm = MM_call;
+  if (cd->ctypeid == CTID_CTYPEID) {
+    id = *(CTypeID *)cdataptr(cd);
+    mm = MM_new;
+  } else {
+    int ret = lj_ccall_func(L, cd);
+    if (ret >= 0)
+      return ret;
+  }
+  /* Handle ctype __call/__new metamethod. */
+  ct = ctype_raw(cts, id);
+  if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+  tv = lj_ctype_meta(cts, id, mm);
+  if (tv)
+    return lj_meta_tailcall(L, tv);
+  else if (mm == MM_call)
+    lj_err_callerv(L, LJ_ERR_FFI_BADCALL, strdata(lj_ctype_repr(L, id, NULL)));
+  return lj_cf_ffi_new(L);
+}
+
+LJLIB_CF(ffi_meta___add)	LJLIB_REC(cdata_arith MM_add)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___sub)	LJLIB_REC(cdata_arith MM_sub)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___mul)	LJLIB_REC(cdata_arith MM_mul)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___div)	LJLIB_REC(cdata_arith MM_div)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___mod)	LJLIB_REC(cdata_arith MM_mod)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___pow)	LJLIB_REC(cdata_arith MM_pow)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___unm)	LJLIB_REC(cdata_arith MM_unm)
+{
+  return ffi_arith(L);
+}
+/* End of contiguous ORDER MM. */
+
+LJLIB_CF(ffi_meta___tostring)
+{
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  const char *msg = "cdata<%s>: %p";
+  CTypeID id = cd->ctypeid;
+  void *p = cdataptr(cd);
+  if (id == CTID_CTYPEID) {
+    msg = "ctype<%s>";
+    id = *(CTypeID *)p;
+  } else {
+    CTState *cts = ctype_cts(L);
+    CType *ct = ctype_raw(cts, id);
+    if (ctype_isref(ct->info)) {
+      p = *(void **)p;
+      ct = ctype_rawchild(cts, ct);
+    }
+    if (ctype_iscomplex(ct->info)) {
+      setstrV(L, L->top-1, lj_ctype_repr_complex(L, cdataptr(cd), ct->size));
+      goto checkgc;
+    } else if (ct->size == 8 && ctype_isinteger(ct->info)) {
+      setstrV(L, L->top-1, lj_ctype_repr_int64(L, *(uint64_t *)cdataptr(cd),
+					       (ct->info & CTF_UNSIGNED)));
+      goto checkgc;
+    } else if (ctype_isfunc(ct->info)) {
+      p = *(void **)p;
+    } else if (ctype_isenum(ct->info)) {
+      msg = "cdata<%s>: %d";
+      p = (void *)(uintptr_t)*(uint32_t **)p;
+    } else {
+      if (ctype_isptr(ct->info)) {
+	p = cdata_getptr(p, ct->size);
+	ct = ctype_rawchild(cts, ct);
+      }
+      if (ctype_isstruct(ct->info) || ctype_isvector(ct->info)) {
+	/* Handle ctype __tostring metamethod. */
+	cTValue *tv = lj_ctype_meta(cts, ctype_typeid(cts, ct), MM_tostring);
+	if (tv)
+	  return lj_meta_tailcall(L, tv);
+      }
+    }
+  }
+  lj_str_pushf(L, msg, strdata(lj_ctype_repr(L, id, NULL)), p);
+checkgc:
+  lj_gc_check(L);
+  return 1;
+}
+
+static int ffi_pairs(lua_State *L, MMS mm)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkcdata(L, 1)->ctypeid;
+  CType *ct = ctype_raw(cts, id);
+  cTValue *tv;
+  if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+  tv = lj_ctype_meta(cts, id, mm);
+  if (!tv)
+    lj_err_callerv(L, LJ_ERR_FFI_BADMM, strdata(lj_ctype_repr(L, id, NULL)),
+		   strdata(mmname_str(G(L), mm)));
+  return lj_meta_tailcall(L, tv);
+}
+
+LJLIB_CF(ffi_meta___pairs)
+{
+  return ffi_pairs(L, MM_pairs);
+}
+
+LJLIB_CF(ffi_meta___ipairs)
+{
+  return ffi_pairs(L, MM_ipairs);
+}
+
+LJLIB_PUSH("ffi") LJLIB_SET(__metatable)
+
+#include "lj_libdef.h"
+
+/* -- C library metamethods ----------------------------------------------- */
+
+#define LJLIB_MODULE_ffi_clib
+
+/* Index C library by a name. */
+static TValue *ffi_clib_index(lua_State *L)
+{
+  TValue *o = L->base;
+  CLibrary *cl;
+  if (!(o < L->top && tvisudata(o) && udataV(o)->udtype == UDTYPE_FFI_CLIB))
+    lj_err_argt(L, 1, LUA_TUSERDATA);
+  cl = (CLibrary *)uddata(udataV(o));
+  if (!(o+1 < L->top && tvisstr(o+1)))
+    lj_err_argt(L, 2, LUA_TSTRING);
+  return lj_clib_index(L, cl, strV(o+1));
+}
+
+LJLIB_CF(ffi_clib___index)	LJLIB_REC(clib_index 1)
+{
+  TValue *tv = ffi_clib_index(L);
+  if (tviscdata(tv)) {
+    CTState *cts = ctype_cts(L);
+    GCcdata *cd = cdataV(tv);
+    CType *s = ctype_get(cts, cd->ctypeid);
+    if (ctype_isextern(s->info)) {
+      CTypeID sid = ctype_cid(s->info);
+      void *sp = *(void **)cdataptr(cd);
+      CType *ct = ctype_raw(cts, sid);
+      if (lj_cconv_tv_ct(cts, ct, sid, L->top-1, sp))
+	lj_gc_check(L);
+      return 1;
+    }
+  }
+  copyTV(L, L->top-1, tv);
+  return 1;
+}
+
+LJLIB_CF(ffi_clib___newindex)	LJLIB_REC(clib_index 0)
+{
+  TValue *tv = ffi_clib_index(L);
+  TValue *o = L->base+2;
+  if (o < L->top && tviscdata(tv)) {
+    CTState *cts = ctype_cts(L);
+    GCcdata *cd = cdataV(tv);
+    CType *d = ctype_get(cts, cd->ctypeid);
+    if (ctype_isextern(d->info)) {
+      CTInfo qual = 0;
+      for (;;) {  /* Skip attributes and collect qualifiers. */
+	d = ctype_child(cts, d);
+	if (!ctype_isattrib(d->info)) break;
+	if (ctype_attrib(d->info) == CTA_QUAL) qual |= d->size;
+      }
+      if (!((d->info|qual) & CTF_CONST)) {
+	lj_cconv_ct_tv(cts, d, *(void **)cdataptr(cd), o, 0);
+	return 0;
+      }
+    }
+  }
+  lj_err_caller(L, LJ_ERR_FFI_WRCONST);
+  return 0;  /* unreachable */
+}
+
+LJLIB_CF(ffi_clib___gc)
+{
+  TValue *o = L->base;
+  if (o < L->top && tvisudata(o) && udataV(o)->udtype == UDTYPE_FFI_CLIB)
+    lj_clib_unload((CLibrary *)uddata(udataV(o)));
+  return 0;
+}
+
+#include "lj_libdef.h"
+
+/* -- Callback function metamethods --------------------------------------- */
+
+#define LJLIB_MODULE_ffi_callback
+
+static int ffi_callback_set(lua_State *L, GCfunc *fn)
+{
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  CTState *cts = ctype_cts(L);
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  if (ctype_isptr(ct->info) && (LJ_32 || ct->size == 8)) {
+    MSize slot = lj_ccallback_ptr2slot(cts, *(void **)cdataptr(cd));
+    if (slot < cts->cb.sizeid && cts->cb.cbid[slot] != 0) {
+      GCtab *t = cts->miscmap;
+      TValue *tv = lj_tab_setint(L, t, (int32_t)slot);
+      if (fn) {
+	setfuncV(L, tv, fn);
+	lj_gc_anybarriert(L, t);
+      } else {
+	setnilV(tv);
+	cts->cb.cbid[slot] = 0;
+	cts->cb.topid = slot < cts->cb.topid ? slot : cts->cb.topid;
+      }
+      return 0;
+    }
+  }
+  lj_err_caller(L, LJ_ERR_FFI_BADCBACK);
+  return 0;
+}
+
+LJLIB_CF(ffi_callback_free)
+{
+  return ffi_callback_set(L, NULL);
+}
+
+LJLIB_CF(ffi_callback_set)
+{
+  GCfunc *fn = lj_lib_checkfunc(L, 2);
+  return ffi_callback_set(L, fn);
+}
+
+LJLIB_PUSH(top-1) LJLIB_SET(__index)
+
+#include "lj_libdef.h"
+
+/* -- FFI library functions ----------------------------------------------- */
+
+#define LJLIB_MODULE_ffi
+
+LJLIB_CF(ffi_cdef)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  CPState cp;
+  int errcode;
+  cp.L = L;
+  cp.cts = ctype_cts(L);
+  cp.srcname = strdata(s);
+  cp.p = strdata(s);
+  cp.param = L->base+1;
+  cp.mode = CPARSE_MODE_MULTI|CPARSE_MODE_DIRECT;
+  errcode = lj_cparse(&cp);
+  if (errcode) lj_err_throw(L, errcode);  /* Propagate errors. */
+  lj_gc_check(L);
+  return 0;
+}
+
+LJLIB_CF(ffi_new)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CType *ct = ctype_raw(cts, id);
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  TValue *o = L->base+1;
+  GCcdata *cd;
+  if ((info & CTF_VLA)) {
+    o++;
+    sz = lj_ctype_vlsize(cts, ct, (CTSize)ffi_checkint(L, 2));
+  }
+  if (sz == CTSIZE_INVALID)
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVSIZE);
+  if (!(info & CTF_VLA) && ctype_align(info) <= CT_MEMALIGN)
+    cd = lj_cdata_new(cts, id, sz);
+  else
+    cd = lj_cdata_newv(cts, id, sz, ctype_align(info));
+  setcdataV(L, o-1, cd);  /* Anchor the uninitialized cdata. */
+  lj_cconv_ct_init(cts, ct, sz, cdataptr(cd),
+		   o, (MSize)(L->top - o));  /* Initialize cdata. */
+  if (ctype_isstruct(ct->info)) {
+    /* Handle ctype __gc metamethod. Use the fast lookup here. */
+    cTValue *tv = lj_tab_getinth(cts->miscmap, -(int32_t)id);
+    if (tv && tvistab(tv) && (tv = lj_meta_fast(L, tabV(tv), MM_gc))) {
+      GCtab *t = cts->finalizer;
+      if (gcref(t->metatable)) {
+	/* Add to finalizer table, if still enabled. */
+	copyTV(L, lj_tab_set(L, t, o-1), tv);
+	lj_gc_anybarriert(L, t);
+	cd->marked |= LJ_GC_CDATA_FIN;
+      }
+    }
+  }
+  L->top = o;  /* Only return the cdata itself. */
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_cast)	LJLIB_REC(ffi_new)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CType *d = ctype_raw(cts, id);
+  TValue *o = lj_lib_checkany(L, 2);
+  L->top = o+1;  /* Make sure this is the last item on the stack. */
+  if (!(ctype_isnum(d->info) || ctype_isptr(d->info) || ctype_isenum(d->info)))
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVTYPE);
+  if (!(tviscdata(o) && cdataV(o)->ctypeid == id)) {
+    GCcdata *cd = lj_cdata_new(cts, id, d->size);
+    lj_cconv_ct_tv(cts, d, cdataptr(cd), o, CCF_CAST);
+    setcdataV(L, o, cd);
+    lj_gc_check(L);
+  }
+  return 1;
+}
+
+LJLIB_CF(ffi_typeof)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, L->base+1);
+  GCcdata *cd = lj_cdata_new(cts, CTID_CTYPEID, 4);
+  *(CTypeID *)cdataptr(cd) = id;
+  setcdataV(L, L->top-1, cd);
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_istype)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id1 = ffi_checkctype(L, cts, NULL);
+  TValue *o = lj_lib_checkany(L, 2);
+  int b = 0;
+  if (tviscdata(o)) {
+    GCcdata *cd = cdataV(o);
+    CTypeID id2 = cd->ctypeid == CTID_CTYPEID ? *(CTypeID *)cdataptr(cd) :
+						cd->ctypeid;
+    CType *ct1 = lj_ctype_rawref(cts, id1);
+    CType *ct2 = lj_ctype_rawref(cts, id2);
+    if (ct1 == ct2) {
+      b = 1;
+    } else if (ctype_type(ct1->info) == ctype_type(ct2->info) &&
+	       ct1->size == ct2->size) {
+      if (ctype_ispointer(ct1->info))
+	b = lj_cconv_compatptr(cts, ct1, ct2, CCF_IGNQUAL);
+      else if (ctype_isnum(ct1->info) || ctype_isvoid(ct1->info))
+	b = (((ct1->info ^ ct2->info) & ~(CTF_QUAL|CTF_LONG)) == 0);
+    } else if (ctype_isstruct(ct1->info) && ctype_isptr(ct2->info) &&
+	       ct1 == ctype_rawchild(cts, ct2)) {
+      b = 1;
+    }
+  }
+  setboolV(L->top-1, b);
+  setboolV(&G(L)->tmptv2, b);  /* Remember for trace recorder. */
+  return 1;
+}
+
+LJLIB_CF(ffi_sizeof)	LJLIB_REC(ffi_xof FF_ffi_sizeof)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CTSize sz;
+  if (LJ_UNLIKELY(tviscdata(L->base) && cdataisv(cdataV(L->base)))) {
+    sz = cdatavlen(cdataV(L->base));
+  } else {
+    CType *ct = lj_ctype_rawref(cts, id);
+    if (ctype_isvltype(ct->info))
+      sz = lj_ctype_vlsize(cts, ct, (CTSize)ffi_checkint(L, 2));
+    else
+      sz = ctype_hassize(ct->info) ? ct->size : CTSIZE_INVALID;
+    if (LJ_UNLIKELY(sz == CTSIZE_INVALID)) {
+      setnilV(L->top-1);
+      return 1;
+    }
+  }
+  setintV(L->top-1, (int32_t)sz);
+  return 1;
+}
+
+LJLIB_CF(ffi_alignof)	LJLIB_REC(ffi_xof FF_ffi_alignof)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CTSize sz = 0;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  setintV(L->top-1, 1 << ctype_align(info));
+  return 1;
+}
+
+LJLIB_CF(ffi_offsetof)	LJLIB_REC(ffi_xof FF_ffi_offsetof)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  GCstr *name = lj_lib_checkstr(L, 2);
+  CType *ct = lj_ctype_rawref(cts, id);
+  CTSize ofs;
+  if (ctype_isstruct(ct->info) && ct->size != CTSIZE_INVALID) {
+    CType *fct = lj_ctype_getfield(cts, ct, name, &ofs);
+    if (fct) {
+      setintV(L->top-1, ofs);
+      if (ctype_isfield(fct->info)) {
+	return 1;
+      } else if (ctype_isbitfield(fct->info)) {
+	setintV(L->top++, ctype_bitpos(fct->info));
+	setintV(L->top++, ctype_bitbsz(fct->info));
+	return 3;
+      }
+    }
+  }
+  return 0;
+}
+
+LJLIB_CF(ffi_errno)	LJLIB_REC(.)
+{
+  int err = errno;
+  if (L->top > L->base)
+    errno = ffi_checkint(L, 1);
+  setintV(L->top++, err);
+  return 1;
+}
+
+LJLIB_CF(ffi_string)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  TValue *o = lj_lib_checkany(L, 1);
+  const char *p;
+  size_t len;
+  if (o+1 < L->top && !tvisnil(o+1)) {
+    len = (size_t)ffi_checkint(L, 2);
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_P_CVOID), (uint8_t *)&p, o,
+		   CCF_ARG(1));
+  } else {
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_P_CCHAR), (uint8_t *)&p, o,
+		   CCF_ARG(1));
+    len = strlen(p);
+  }
+  L->top = o+1;  /* Make sure this is the last item on the stack. */
+  setstrV(L, o, lj_str_new(L, p, len));
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_copy)	LJLIB_REC(.)
+{
+  void *dp = ffi_checkptr(L, 1, CTID_P_VOID);
+  void *sp = ffi_checkptr(L, 2, CTID_P_CVOID);
+  TValue *o = L->base+1;
+  CTSize len;
+  if (tvisstr(o) && o+1 >= L->top)
+    len = strV(o)->len+1;  /* Copy Lua string including trailing '\0'. */
+  else
+    len = (CTSize)ffi_checkint(L, 3);
+  memcpy(dp, sp, len);
+  return 0;
+}
+
+LJLIB_CF(ffi_fill)	LJLIB_REC(.)
+{
+  void *dp = ffi_checkptr(L, 1, CTID_P_VOID);
+  CTSize len = (CTSize)ffi_checkint(L, 2);
+  int32_t fill = 0;
+  if (L->base+2 < L->top && !tvisnil(L->base+2)) fill = ffi_checkint(L, 3);
+  memset(dp, fill, len);
+  return 0;
+}
+
+#define H_(le, be)	LJ_ENDIAN_SELECT(0x##le, 0x##be)
+
+/* Test ABI string. */
+LJLIB_CF(ffi_abi)	LJLIB_REC(.)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  int b = 0;
+  switch (s->hash) {
+#if LJ_64
+  case H_(849858eb,ad35fd06): b = 1; break;  /* 64bit */
+#else
+  case H_(662d3c79,d0e22477): b = 1; break;  /* 32bit */
+#endif
+#if LJ_ARCH_HASFPU
+  case H_(e33ee463,e33ee463): b = 1; break;  /* fpu */
+#endif
+#if LJ_ABI_SOFTFP
+  case H_(61211a23,c2e8c81c): b = 1; break;  /* softfp */
+#else
+  case H_(539417a8,8ce0812f): b = 1; break;  /* hardfp */
+#endif
+#if LJ_ABI_EABI
+  case H_(2182df8f,f2ed1152): b = 1; break;  /* eabi */
+#endif
+#if LJ_ABI_WIN
+  case H_(4ab624a8,4ab624a8): b = 1; break;  /* win */
+#endif
+  case H_(3af93066,1f001464): b = 1; break;  /* le/be */
+  default:
+    break;
+  }
+  setboolV(L->top-1, b);
+  setboolV(&G(L)->tmptv2, b);  /* Remember for trace recorder. */
+  return 1;
+}
+
+#undef H_
+
+LJLIB_PUSH(top-8) LJLIB_SET(!)  /* Store reference to miscmap table. */
+
+LJLIB_CF(ffi_metatype)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  GCtab *mt = lj_lib_checktab(L, 2);
+  GCtab *t = cts->miscmap;
+  CType *ct = ctype_get(cts, id);  /* Only allow raw types. */
+  TValue *tv;
+  GCcdata *cd;
+  if (!(ctype_isstruct(ct->info) || ctype_iscomplex(ct->info) ||
+	ctype_isvector(ct->info)))
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVTYPE);
+  tv = lj_tab_setinth(L, t, -(int32_t)id);
+  if (!tvisnil(tv))
+    lj_err_caller(L, LJ_ERR_PROTMT);
+  settabV(L, tv, mt);
+  lj_gc_anybarriert(L, t);
+  cd = lj_cdata_new(cts, CTID_CTYPEID, 4);
+  *(CTypeID *)cdataptr(cd) = id;
+  setcdataV(L, L->top-1, cd);
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_PUSH(top-7) LJLIB_SET(!)  /* Store reference to finalizer table. */
+
+LJLIB_CF(ffi_gc)	LJLIB_REC(.)
+{
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  TValue *fin = lj_lib_checkany(L, 2);
+  CTState *cts = ctype_cts(L);
+  GCtab *t = cts->finalizer;
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  if (!(ctype_isptr(ct->info) || ctype_isstruct(ct->info) ||
+	ctype_isrefarray(ct->info)))
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVTYPE);
+  if (gcref(t->metatable)) {  /* Update finalizer table, if still enabled. */
+    copyTV(L, lj_tab_set(L, t, L->base), fin);
+    lj_gc_anybarriert(L, t);
+    if (!tvisnil(fin))
+      cd->marked |= LJ_GC_CDATA_FIN;
+    else
+      cd->marked &= ~LJ_GC_CDATA_FIN;
+  }
+  L->top = L->base+1;  /* Pass through the cdata object. */
+  return 1;
+}
+
+LJLIB_PUSH(top-5) LJLIB_SET(!)  /* Store clib metatable in func environment. */
+
+LJLIB_CF(ffi_load)
+{
+  GCstr *name = lj_lib_checkstr(L, 1);
+  int global = (L->base+1 < L->top && tvistruecond(L->base+1));
+  lj_clib_load(L, tabref(curr_func(L)->c.env), name, global);
+  return 1;
+}
+
+LJLIB_PUSH(top-4) LJLIB_SET(C)
+LJLIB_PUSH(top-3) LJLIB_SET(os)
+LJLIB_PUSH(top-2) LJLIB_SET(arch)
+
+#include "lj_libdef.h"
+
+/* ------------------------------------------------------------------------ */
+
+/* Create special weak-keyed finalizer table. */
+static GCtab *ffi_finalizer(lua_State *L)
+{
+  /* NOBARRIER: The table is new (marked white). */
+  GCtab *t = lj_tab_new(L, 0, 1);
+  settabV(L, L->top++, t);
+  setgcref(t->metatable, obj2gco(t));
+  setstrV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "__mode")),
+	  lj_str_newlit(L, "K"));
+  t->nomm = (uint8_t)(~(1u<<MM_mode));
+  return t;
+}
+
+/* Register FFI module as loaded. */
+static void ffi_register_module(lua_State *L)
+{
+  cTValue *tmp = lj_tab_getstr(tabV(registry(L)), lj_str_newlit(L, "_LOADED"));
+  if (tmp && tvistab(tmp)) {
+    GCtab *t = tabV(tmp);
+    copyTV(L, lj_tab_setstr(L, t, lj_str_newlit(L, LUA_FFILIBNAME)), L->top-1);
+    lj_gc_anybarriert(L, t);
+  }
+}
+
+LUALIB_API int luaopen_ffi(lua_State *L)
+{
+  CTState *cts = lj_ctype_init(L);
+  settabV(L, L->top++, (cts->miscmap = lj_tab_new(L, 0, 1)));
+  cts->finalizer = ffi_finalizer(L);
+  LJ_LIB_REG(L, NULL, ffi_meta);
+  /* NOBARRIER: basemt is a GC root. */
+  setgcref(basemt_it(G(L), LJ_TCDATA), obj2gco(tabV(L->top-1)));
+  LJ_LIB_REG(L, NULL, ffi_clib);
+  LJ_LIB_REG(L, NULL, ffi_callback);
+  /* NOBARRIER: the key is new and lj_tab_newkey() handles the barrier. */
+  settabV(L, lj_tab_setstr(L, cts->miscmap, &cts->g->strempty), tabV(L->top-1));
+  L->top--;
+  lj_clib_default(L, tabV(L->top-1));  /* Create ffi.C default namespace. */
+  lua_pushliteral(L, LJ_OS_NAME);
+  lua_pushliteral(L, LJ_ARCH_NAME);
+  LJ_LIB_REG(L, NULL, ffi);  /* Note: no global "ffi" created! */
+  ffi_register_module(L);
+  return 1;
+}
+
+#endif
diff --git a/lib/luajit/src/lib_init.c b/lib/luajit/src/lib_init.c
new file mode 100644
index 00000000..a729d125
--- /dev/null
+++ b/lib/luajit/src/lib_init.c
@@ -0,0 +1,55 @@
+/*
+** Library initialization.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major parts taken verbatim from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_init_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_arch.h"
+
+static const luaL_Reg lj_lib_load[] = {
+  { "",			luaopen_base },
+  { LUA_LOADLIBNAME,	luaopen_package },
+  { LUA_TABLIBNAME,	luaopen_table },
+  { LUA_IOLIBNAME,	luaopen_io },
+  { LUA_OSLIBNAME,	luaopen_os },
+  { LUA_STRLIBNAME,	luaopen_string },
+  { LUA_MATHLIBNAME,	luaopen_math },
+  { LUA_DBLIBNAME,	luaopen_debug },
+  { LUA_BITLIBNAME,	luaopen_bit },
+  { LUA_JITLIBNAME,	luaopen_jit },
+  { NULL,		NULL }
+};
+
+static const luaL_Reg lj_lib_preload[] = {
+#if LJ_HASFFI
+  { LUA_FFILIBNAME,	luaopen_ffi },
+#endif
+  { NULL,		NULL }
+};
+
+LUALIB_API void luaL_openlibs(lua_State *L)
+{
+  const luaL_Reg *lib;
+  for (lib = lj_lib_load; lib->func; lib++) {
+    lua_pushcfunction(L, lib->func);
+    lua_pushstring(L, lib->name);
+    lua_call(L, 1, 0);
+  }
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_PRELOAD",
+		 sizeof(lj_lib_preload)/sizeof(lj_lib_preload[0])-1);
+  for (lib = lj_lib_preload; lib->func; lib++) {
+    lua_pushcfunction(L, lib->func);
+    lua_setfield(L, -2, lib->name);
+  }
+  lua_pop(L, 1);
+}
+
diff --git a/lib/luajit/src/lib_io.c b/lib/luajit/src/lib_io.c
new file mode 100644
index 00000000..04f0f739
--- /dev/null
+++ b/lib/luajit/src/lib_io.c
@@ -0,0 +1,539 @@
+/*
+** I/O library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2011 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <errno.h>
+#include <stdio.h>
+
+#define lib_io_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_state.h"
+#include "lj_ff.h"
+#include "lj_lib.h"
+
+/* Userdata payload for I/O file. */
+typedef struct IOFileUD {
+  FILE *fp;		/* File handle. */
+  uint32_t type;	/* File type. */
+} IOFileUD;
+
+#define IOFILE_TYPE_FILE	0	/* Regular file. */
+#define IOFILE_TYPE_PIPE	1	/* Pipe. */
+#define IOFILE_TYPE_STDF	2	/* Standard file handle. */
+#define IOFILE_TYPE_MASK	3
+
+#define IOFILE_FLAG_CLOSE	4	/* Close after io.lines() iterator. */
+
+#define IOSTDF_UD(L, id)	(&gcref(G(L)->gcroot[(id)])->ud)
+#define IOSTDF_IOF(L, id)	((IOFileUD *)uddata(IOSTDF_UD(L, (id))))
+
+/* -- Open/close helpers -------------------------------------------------- */
+
+static IOFileUD *io_tofilep(lua_State *L)
+{
+  if (!(L->base < L->top && tvisudata(L->base) &&
+	udataV(L->base)->udtype == UDTYPE_IO_FILE))
+    lj_err_argtype(L, 1, "FILE*");
+  return (IOFileUD *)uddata(udataV(L->base));
+}
+
+static IOFileUD *io_tofile(lua_State *L)
+{
+  IOFileUD *iof = io_tofilep(L);
+  if (iof->fp == NULL)
+    lj_err_caller(L, LJ_ERR_IOCLFL);
+  return iof;
+}
+
+static FILE *io_stdfile(lua_State *L, ptrdiff_t id)
+{
+  IOFileUD *iof = IOSTDF_IOF(L, id);
+  if (iof->fp == NULL)
+    lj_err_caller(L, LJ_ERR_IOSTDCL);
+  return iof->fp;
+}
+
+static IOFileUD *io_file_new(lua_State *L)
+{
+  IOFileUD *iof = (IOFileUD *)lua_newuserdata(L, sizeof(IOFileUD));
+  GCudata *ud = udataV(L->top-1);
+  ud->udtype = UDTYPE_IO_FILE;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcrefr(ud->metatable, curr_func(L)->c.env);
+  iof->fp = NULL;
+  iof->type = IOFILE_TYPE_FILE;
+  return iof;
+}
+
+static IOFileUD *io_file_open(lua_State *L, const char *mode)
+{
+  const char *fname = strdata(lj_lib_checkstr(L, 1));
+  IOFileUD *iof = io_file_new(L);
+  iof->fp = fopen(fname, mode);
+  if (iof->fp == NULL)
+    luaL_argerror(L, 1, lj_str_pushf(L, "%s: %s", fname, strerror(errno)));
+  return iof;
+}
+
+static int io_file_close(lua_State *L, IOFileUD *iof)
+{
+  int ok;
+  if ((iof->type & IOFILE_TYPE_MASK) == IOFILE_TYPE_FILE) {
+    ok = (fclose(iof->fp) == 0);
+  } else if ((iof->type & IOFILE_TYPE_MASK) == IOFILE_TYPE_PIPE) {
+    int stat = -1;
+#if LJ_TARGET_POSIX
+    stat = pclose(iof->fp);
+#elif LJ_TARGET_WINDOWS
+    stat = _pclose(iof->fp);
+#else
+    lua_assert(0);
+    return 0;
+#endif
+#if LJ_52
+    iof->fp = NULL;
+    return luaL_execresult(L, stat);
+#else
+    ok = (stat != -1);
+#endif
+  } else {
+    lua_assert((iof->type & IOFILE_TYPE_MASK) == IOFILE_TYPE_STDF);
+    setnilV(L->top++);
+    lua_pushliteral(L, "cannot close standard file");
+    return 2;
+  }
+  iof->fp = NULL;
+  return luaL_fileresult(L, ok, NULL);
+}
+
+/* -- Read/write helpers -------------------------------------------------- */
+
+static int io_file_readnum(lua_State *L, FILE *fp)
+{
+  lua_Number d;
+  if (fscanf(fp, LUA_NUMBER_SCAN, &d) == 1) {
+    if (LJ_DUALNUM) {
+      int32_t i = lj_num2int(d);
+      if (d == (lua_Number)i && !tvismzero((cTValue *)&d)) {
+	setintV(L->top++, i);
+	return 1;
+      }
+    }
+    setnumV(L->top++, d);
+    return 1;
+  } else {
+    setnilV(L->top++);
+    return 0;
+  }
+}
+
+static int io_file_readline(lua_State *L, FILE *fp, MSize chop)
+{
+  MSize m = LUAL_BUFFERSIZE, n = 0, ok = 0;
+  char *buf;
+  for (;;) {
+    buf = lj_str_needbuf(L, &G(L)->tmpbuf, m);
+    if (fgets(buf+n, m-n, fp) == NULL) break;
+    n += (MSize)strlen(buf+n);
+    ok |= n;
+    if (n && buf[n-1] == '\n') { n -= chop; break; }
+    if (n >= m - 64) m += m;
+  }
+  setstrV(L, L->top++, lj_str_new(L, buf, (size_t)n));
+  lj_gc_check(L);
+  return (int)ok;
+}
+
+static void io_file_readall(lua_State *L, FILE *fp)
+{
+  MSize m, n;
+  for (m = LUAL_BUFFERSIZE, n = 0; ; m += m) {
+    char *buf = lj_str_needbuf(L, &G(L)->tmpbuf, m);
+    n += (MSize)fread(buf+n, 1, m-n, fp);
+    if (n != m) {
+      setstrV(L, L->top++, lj_str_new(L, buf, (size_t)n));
+      lj_gc_check(L);
+      return;
+    }
+  }
+}
+
+static int io_file_readlen(lua_State *L, FILE *fp, MSize m)
+{
+  if (m) {
+    char *buf = lj_str_needbuf(L, &G(L)->tmpbuf, m);
+    MSize n = (MSize)fread(buf, 1, m, fp);
+    setstrV(L, L->top++, lj_str_new(L, buf, (size_t)n));
+    lj_gc_check(L);
+    return (n > 0 || m == 0);
+  } else {
+    int c = getc(fp);
+    ungetc(c, fp);
+    setstrV(L, L->top++, &G(L)->strempty);
+    return (c != EOF);
+  }
+}
+
+static int io_file_read(lua_State *L, FILE *fp, int start)
+{
+  int ok, n, nargs = (int)(L->top - L->base) - start;
+  clearerr(fp);
+  if (nargs == 0) {
+    ok = io_file_readline(L, fp, 1);
+    n = start+1;  /* Return 1 result. */
+  } else {
+    /* The results plus the buffers go on top of the args. */
+    luaL_checkstack(L, nargs+LUA_MINSTACK, "too many arguments");
+    ok = 1;
+    for (n = start; nargs-- && ok; n++) {
+      if (tvisstr(L->base+n)) {
+	const char *p = strVdata(L->base+n);
+	if (p[0] != '*')
+	  lj_err_arg(L, n+1, LJ_ERR_INVOPT);
+	if (p[1] == 'n')
+	  ok = io_file_readnum(L, fp);
+	else if ((p[1] & ~0x20) == 'L')
+	  ok = io_file_readline(L, fp, (p[1] == 'l'));
+	else if (p[1] == 'a')
+	  io_file_readall(L, fp);
+	else
+	  lj_err_arg(L, n+1, LJ_ERR_INVFMT);
+      } else if (tvisnumber(L->base+n)) {
+	ok = io_file_readlen(L, fp, (MSize)lj_lib_checkint(L, n+1));
+      } else {
+	lj_err_arg(L, n+1, LJ_ERR_INVOPT);
+      }
+    }
+  }
+  if (ferror(fp))
+    return luaL_fileresult(L, 0, NULL);
+  if (!ok)
+    setnilV(L->top-1);  /* Replace last result with nil. */
+  return n - start;
+}
+
+static int io_file_write(lua_State *L, FILE *fp, int start)
+{
+  cTValue *tv;
+  int status = 1;
+  for (tv = L->base+start; tv < L->top; tv++) {
+    if (tvisstr(tv)) {
+      MSize len = strV(tv)->len;
+      status = status && (fwrite(strVdata(tv), 1, len, fp) == len);
+    } else if (tvisint(tv)) {
+      char buf[LJ_STR_INTBUF];
+      char *p = lj_str_bufint(buf, intV(tv));
+      size_t len = (size_t)(buf+LJ_STR_INTBUF-p);
+      status = status && (fwrite(p, 1, len, fp) == len);
+    } else if (tvisnum(tv)) {
+      status = status && (fprintf(fp, LUA_NUMBER_FMT, numV(tv)) > 0);
+    } else {
+      lj_err_argt(L, (int)(tv - L->base) + 1, LUA_TSTRING);
+    }
+  }
+  if (LJ_52 && status) {
+    L->top = L->base+1;
+    if (start == 0)
+      setudataV(L, L->base, IOSTDF_UD(L, GCROOT_IO_OUTPUT));
+    return 1;
+  }
+  return luaL_fileresult(L, status, NULL);
+}
+
+static int io_file_iter(lua_State *L)
+{
+  GCfunc *fn = curr_func(L);
+  IOFileUD *iof = uddata(udataV(&fn->c.upvalue[0]));
+  int n = fn->c.nupvalues - 1;
+  if (iof->fp == NULL)
+    lj_err_caller(L, LJ_ERR_IOCLFL);
+  L->top = L->base;
+  if (n) {  /* Copy upvalues with options to stack. */
+    if (n > LUAI_MAXCSTACK)
+      lj_err_caller(L, LJ_ERR_STKOV);
+    lj_state_checkstack(L, (MSize)n);
+    memcpy(L->top, &fn->c.upvalue[1], n*sizeof(TValue));
+    L->top += n;
+  }
+  n = io_file_read(L, iof->fp, 0);
+  if (ferror(iof->fp))
+    lj_err_callermsg(L, strVdata(L->top-2));
+  if (tvisnil(L->base) && (iof->type & IOFILE_FLAG_CLOSE)) {
+    io_file_close(L, iof);  /* Return values are ignored. */
+    return 0;
+  }
+  return n;
+}
+
+/* -- I/O file methods ---------------------------------------------------- */
+
+#define LJLIB_MODULE_io_method
+
+LJLIB_CF(io_method_close)
+{
+  IOFileUD *iof = L->base < L->top ? io_tofile(L) :
+		  IOSTDF_IOF(L, GCROOT_IO_OUTPUT);
+  return io_file_close(L, iof);
+}
+
+LJLIB_CF(io_method_read)
+{
+  return io_file_read(L, io_tofile(L)->fp, 1);
+}
+
+LJLIB_CF(io_method_write)		LJLIB_REC(io_write 0)
+{
+  return io_file_write(L, io_tofile(L)->fp, 1);
+}
+
+LJLIB_CF(io_method_flush)		LJLIB_REC(io_flush 0)
+{
+  return luaL_fileresult(L, fflush(io_tofile(L)->fp) == 0, NULL);
+}
+
+LJLIB_CF(io_method_seek)
+{
+  FILE *fp = io_tofile(L)->fp;
+  int opt = lj_lib_checkopt(L, 2, 1, "\3set\3cur\3end");
+  int64_t ofs = 0;
+  cTValue *o;
+  int res;
+  if (opt == 0) opt = SEEK_SET;
+  else if (opt == 1) opt = SEEK_CUR;
+  else if (opt == 2) opt = SEEK_END;
+  o = L->base+2;
+  if (o < L->top) {
+    if (tvisint(o))
+      ofs = (int64_t)intV(o);
+    else if (tvisnum(o))
+      ofs = (int64_t)numV(o);
+    else if (!tvisnil(o))
+      lj_err_argt(L, 3, LUA_TNUMBER);
+  }
+#if LJ_TARGET_POSIX
+  res = fseeko(fp, ofs, opt);
+#elif _MSC_VER >= 1400
+  res = _fseeki64(fp, ofs, opt);
+#elif defined(__MINGW32__)
+  res = fseeko64(fp, ofs, opt);
+#else
+  res = fseek(fp, (long)ofs, opt);
+#endif
+  if (res)
+    return luaL_fileresult(L, 0, NULL);
+#if LJ_TARGET_POSIX
+  ofs = ftello(fp);
+#elif _MSC_VER >= 1400
+  ofs = _ftelli64(fp);
+#elif defined(__MINGW32__)
+  ofs = ftello64(fp);
+#else
+  ofs = (int64_t)ftell(fp);
+#endif
+  setint64V(L->top-1, ofs);
+  return 1;
+}
+
+LJLIB_CF(io_method_setvbuf)
+{
+  FILE *fp = io_tofile(L)->fp;
+  int opt = lj_lib_checkopt(L, 2, -1, "\4full\4line\2no");
+  size_t sz = (size_t)lj_lib_optint(L, 3, LUAL_BUFFERSIZE);
+  if (opt == 0) opt = _IOFBF;
+  else if (opt == 1) opt = _IOLBF;
+  else if (opt == 2) opt = _IONBF;
+  return luaL_fileresult(L, setvbuf(fp, NULL, opt, sz) == 0, NULL);
+}
+
+LJLIB_CF(io_method_lines)
+{
+  io_tofile(L);
+  lua_pushcclosure(L, io_file_iter, (int)(L->top - L->base));
+  return 1;
+}
+
+LJLIB_CF(io_method___gc)
+{
+  IOFileUD *iof = io_tofilep(L);
+  if (iof->fp != NULL && (iof->type & IOFILE_TYPE_MASK) != IOFILE_TYPE_STDF)
+    io_file_close(L, iof);
+  return 0;
+}
+
+LJLIB_CF(io_method___tostring)
+{
+  IOFileUD *iof = io_tofilep(L);
+  if (iof->fp != NULL)
+    lua_pushfstring(L, "file (%p)", iof->fp);
+  else
+    lua_pushliteral(L, "file (closed)");
+  return 1;
+}
+
+LJLIB_PUSH(top-1) LJLIB_SET(__index)
+
+#include "lj_libdef.h"
+
+/* -- I/O library functions ----------------------------------------------- */
+
+#define LJLIB_MODULE_io
+
+LJLIB_PUSH(top-2) LJLIB_SET(!)  /* Set environment. */
+
+LJLIB_CF(io_open)
+{
+  const char *fname = strdata(lj_lib_checkstr(L, 1));
+  GCstr *s = lj_lib_optstr(L, 2);
+  const char *mode = s ? strdata(s) : "r";
+  IOFileUD *iof = io_file_new(L);
+  iof->fp = fopen(fname, mode);
+  return iof->fp != NULL ? 1 : luaL_fileresult(L, 0, fname);
+}
+
+LJLIB_CF(io_popen)
+{
+#if LJ_TARGET_POSIX || LJ_TARGET_WINDOWS
+  const char *fname = strdata(lj_lib_checkstr(L, 1));
+  GCstr *s = lj_lib_optstr(L, 2);
+  const char *mode = s ? strdata(s) : "r";
+  IOFileUD *iof = io_file_new(L);
+  iof->type = IOFILE_TYPE_PIPE;
+#if LJ_TARGET_POSIX
+  fflush(NULL);
+  iof->fp = popen(fname, mode);
+#else
+  iof->fp = _popen(fname, mode);
+#endif
+  return iof->fp != NULL ? 1 : luaL_fileresult(L, 0, fname);
+#else
+  return luaL_error(L, LUA_QL("popen") " not supported");
+#endif
+}
+
+LJLIB_CF(io_tmpfile)
+{
+  IOFileUD *iof = io_file_new(L);
+#if LJ_TARGET_PS3 || LJ_TARGET_PS4
+  iof->fp = NULL; errno = ENOSYS;
+#else
+  iof->fp = tmpfile();
+#endif
+  return iof->fp != NULL ? 1 : luaL_fileresult(L, 0, NULL);
+}
+
+LJLIB_CF(io_close)
+{
+  return lj_cf_io_method_close(L);
+}
+
+LJLIB_CF(io_read)
+{
+  return io_file_read(L, io_stdfile(L, GCROOT_IO_INPUT), 0);
+}
+
+LJLIB_CF(io_write)		LJLIB_REC(io_write GCROOT_IO_OUTPUT)
+{
+  return io_file_write(L, io_stdfile(L, GCROOT_IO_OUTPUT), 0);
+}
+
+LJLIB_CF(io_flush)		LJLIB_REC(io_flush GCROOT_IO_OUTPUT)
+{
+  return luaL_fileresult(L, fflush(io_stdfile(L, GCROOT_IO_OUTPUT)) == 0, NULL);
+}
+
+static int io_std_getset(lua_State *L, ptrdiff_t id, const char *mode)
+{
+  if (L->base < L->top && !tvisnil(L->base)) {
+    if (tvisudata(L->base)) {
+      io_tofile(L);
+      L->top = L->base+1;
+    } else {
+      io_file_open(L, mode);
+    }
+    /* NOBARRIER: The standard I/O handles are GC roots. */
+    setgcref(G(L)->gcroot[id], gcV(L->top-1));
+  } else {
+    setudataV(L, L->top++, IOSTDF_UD(L, id));
+  }
+  return 1;
+}
+
+LJLIB_CF(io_input)
+{
+  return io_std_getset(L, GCROOT_IO_INPUT, "r");
+}
+
+LJLIB_CF(io_output)
+{
+  return io_std_getset(L, GCROOT_IO_OUTPUT, "w");
+}
+
+LJLIB_CF(io_lines)
+{
+  if (L->base == L->top) setnilV(L->top++);
+  if (!tvisnil(L->base)) {  /* io.lines(fname) */
+    IOFileUD *iof = io_file_open(L, "r");
+    iof->type = IOFILE_TYPE_FILE|IOFILE_FLAG_CLOSE;
+    L->top--;
+    setudataV(L, L->base, udataV(L->top));
+  } else {  /* io.lines() iterates over stdin. */
+    setudataV(L, L->base, IOSTDF_UD(L, GCROOT_IO_INPUT));
+  }
+  lua_pushcclosure(L, io_file_iter, (int)(L->top - L->base));
+  return 1;
+}
+
+LJLIB_CF(io_type)
+{
+  cTValue *o = lj_lib_checkany(L, 1);
+  if (!(tvisudata(o) && udataV(o)->udtype == UDTYPE_IO_FILE))
+    setnilV(L->top++);
+  else if (((IOFileUD *)uddata(udataV(o)))->fp != NULL)
+    lua_pushliteral(L, "file");
+  else
+    lua_pushliteral(L, "closed file");
+  return 1;
+}
+
+#include "lj_libdef.h"
+
+/* ------------------------------------------------------------------------ */
+
+static GCobj *io_std_new(lua_State *L, FILE *fp, const char *name)
+{
+  IOFileUD *iof = (IOFileUD *)lua_newuserdata(L, sizeof(IOFileUD));
+  GCudata *ud = udataV(L->top-1);
+  ud->udtype = UDTYPE_IO_FILE;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcref(ud->metatable, gcV(L->top-3));
+  iof->fp = fp;
+  iof->type = IOFILE_TYPE_STDF;
+  lua_setfield(L, -2, name);
+  return obj2gco(ud);
+}
+
+LUALIB_API int luaopen_io(lua_State *L)
+{
+  LJ_LIB_REG(L, NULL, io_method);
+  copyTV(L, L->top, L->top-1); L->top++;
+  lua_setfield(L, LUA_REGISTRYINDEX, LUA_FILEHANDLE);
+  LJ_LIB_REG(L, LUA_IOLIBNAME, io);
+  setgcref(G(L)->gcroot[GCROOT_IO_INPUT], io_std_new(L, stdin, "stdin"));
+  setgcref(G(L)->gcroot[GCROOT_IO_OUTPUT], io_std_new(L, stdout, "stdout"));
+  io_std_new(L, stderr, "stderr");
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_jit.c b/lib/luajit/src/lib_jit.c
new file mode 100644
index 00000000..0fadf8b9
--- /dev/null
+++ b/lib/luajit/src/lib_jit.c
@@ -0,0 +1,663 @@
+/*
+** JIT library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_jit_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_arch.h"
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_bc.h"
+#if LJ_HASJIT
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_target.h"
+#endif
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+#include "lj_lib.h"
+
+#include "luajit.h"
+
+/* -- jit.* functions ----------------------------------------------------- */
+
+#define LJLIB_MODULE_jit
+
+static int setjitmode(lua_State *L, int mode)
+{
+  int idx = 0;
+  if (L->base == L->top || tvisnil(L->base)) {  /* jit.on/off/flush([nil]) */
+    mode |= LUAJIT_MODE_ENGINE;
+  } else {
+    /* jit.on/off/flush(func|proto, nil|true|false) */
+    if (tvisfunc(L->base) || tvisproto(L->base))
+      idx = 1;
+    else if (!tvistrue(L->base))  /* jit.on/off/flush(true, nil|true|false) */
+      goto err;
+    if (L->base+1 < L->top && tvisbool(L->base+1))
+      mode |= boolV(L->base+1) ? LUAJIT_MODE_ALLFUNC : LUAJIT_MODE_ALLSUBFUNC;
+    else
+      mode |= LUAJIT_MODE_FUNC;
+  }
+  if (luaJIT_setmode(L, idx, mode) != 1) {
+    if ((mode & LUAJIT_MODE_MASK) == LUAJIT_MODE_ENGINE)
+      lj_err_caller(L, LJ_ERR_NOJIT);
+  err:
+    lj_err_argt(L, 1, LUA_TFUNCTION);
+  }
+  return 0;
+}
+
+LJLIB_CF(jit_on)
+{
+  return setjitmode(L, LUAJIT_MODE_ON);
+}
+
+LJLIB_CF(jit_off)
+{
+  return setjitmode(L, LUAJIT_MODE_OFF);
+}
+
+LJLIB_CF(jit_flush)
+{
+#if LJ_HASJIT
+  if (L->base < L->top && tvisnumber(L->base)) {
+    int traceno = lj_lib_checkint(L, 1);
+    luaJIT_setmode(L, traceno, LUAJIT_MODE_FLUSH|LUAJIT_MODE_TRACE);
+    return 0;
+  }
+#endif
+  return setjitmode(L, LUAJIT_MODE_FLUSH);
+}
+
+#if LJ_HASJIT
+/* Push a string for every flag bit that is set. */
+static void flagbits_to_strings(lua_State *L, uint32_t flags, uint32_t base,
+				const char *str)
+{
+  for (; *str; base <<= 1, str += 1+*str)
+    if (flags & base)
+      setstrV(L, L->top++, lj_str_new(L, str+1, *(uint8_t *)str));
+}
+#endif
+
+LJLIB_CF(jit_status)
+{
+#if LJ_HASJIT
+  jit_State *J = L2J(L);
+  L->top = L->base;
+  setboolV(L->top++, (J->flags & JIT_F_ON) ? 1 : 0);
+  flagbits_to_strings(L, J->flags, JIT_F_CPU_FIRST, JIT_F_CPUSTRING);
+  flagbits_to_strings(L, J->flags, JIT_F_OPT_FIRST, JIT_F_OPTSTRING);
+  return (int)(L->top - L->base);
+#else
+  setboolV(L->top++, 0);
+  return 1;
+#endif
+}
+
+LJLIB_CF(jit_attach)
+{
+#ifdef LUAJIT_DISABLE_VMEVENT
+  luaL_error(L, "vmevent API disabled");
+#else
+  GCfunc *fn = lj_lib_checkfunc(L, 1);
+  GCstr *s = lj_lib_optstr(L, 2);
+  luaL_findtable(L, LUA_REGISTRYINDEX, LJ_VMEVENTS_REGKEY, LJ_VMEVENTS_HSIZE);
+  if (s) {  /* Attach to given event. */
+    const uint8_t *p = (const uint8_t *)strdata(s);
+    uint32_t h = s->len;
+    while (*p) h = h ^ (lj_rol(h, 6) + *p++);
+    lua_pushvalue(L, 1);
+    lua_rawseti(L, -2, VMEVENT_HASHIDX(h));
+    G(L)->vmevmask = VMEVENT_NOCACHE;  /* Invalidate cache. */
+  } else {  /* Detach if no event given. */
+    setnilV(L->top++);
+    while (lua_next(L, -2)) {
+      L->top--;
+      if (tvisfunc(L->top) && funcV(L->top) == fn) {
+	setnilV(lj_tab_set(L, tabV(L->top-2), L->top-1));
+      }
+    }
+  }
+#endif
+  return 0;
+}
+
+LJLIB_PUSH(top-5) LJLIB_SET(os)
+LJLIB_PUSH(top-4) LJLIB_SET(arch)
+LJLIB_PUSH(top-3) LJLIB_SET(version_num)
+LJLIB_PUSH(top-2) LJLIB_SET(version)
+
+#include "lj_libdef.h"
+
+/* -- jit.util.* functions ------------------------------------------------ */
+
+#define LJLIB_MODULE_jit_util
+
+/* -- Reflection API for Lua functions ------------------------------------ */
+
+/* Return prototype of first argument (Lua function or prototype object) */
+static GCproto *check_Lproto(lua_State *L, int nolua)
+{
+  TValue *o = L->base;
+  if (L->top > o) {
+    if (tvisproto(o)) {
+      return protoV(o);
+    } else if (tvisfunc(o)) {
+      if (isluafunc(funcV(o)))
+	return funcproto(funcV(o));
+      else if (nolua)
+	return NULL;
+    }
+  }
+  lj_err_argt(L, 1, LUA_TFUNCTION);
+  return NULL;  /* unreachable */
+}
+
+static void setintfield(lua_State *L, GCtab *t, const char *name, int32_t val)
+{
+  setintV(lj_tab_setstr(L, t, lj_str_newz(L, name)), val);
+}
+
+/* local info = jit.util.funcinfo(func [,pc]) */
+LJLIB_CF(jit_util_funcinfo)
+{
+  GCproto *pt = check_Lproto(L, 1);
+  if (pt) {
+    BCPos pc = (BCPos)lj_lib_optint(L, 2, 0);
+    GCtab *t;
+    lua_createtable(L, 0, 16);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    setintfield(L, t, "linedefined", pt->firstline);
+    setintfield(L, t, "lastlinedefined", pt->firstline + pt->numline);
+    setintfield(L, t, "stackslots", pt->framesize);
+    setintfield(L, t, "params", pt->numparams);
+    setintfield(L, t, "bytecodes", (int32_t)pt->sizebc);
+    setintfield(L, t, "gcconsts", (int32_t)pt->sizekgc);
+    setintfield(L, t, "nconsts", (int32_t)pt->sizekn);
+    setintfield(L, t, "upvalues", (int32_t)pt->sizeuv);
+    if (pc < pt->sizebc)
+      setintfield(L, t, "currentline", lj_debug_line(pt, pc));
+    lua_pushboolean(L, (pt->flags & PROTO_VARARG));
+    lua_setfield(L, -2, "isvararg");
+    lua_pushboolean(L, (pt->flags & PROTO_CHILD));
+    lua_setfield(L, -2, "children");
+    setstrV(L, L->top++, proto_chunkname(pt));
+    lua_setfield(L, -2, "source");
+    lj_debug_pushloc(L, pt, pc);
+    lua_setfield(L, -2, "loc");
+  } else {
+    GCfunc *fn = funcV(L->base);
+    GCtab *t;
+    lua_createtable(L, 0, 4);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    if (!iscfunc(fn))
+      setintfield(L, t, "ffid", fn->c.ffid);
+    setintptrV(lj_tab_setstr(L, t, lj_str_newlit(L, "addr")),
+	       (intptr_t)(void *)fn->c.f);
+    setintfield(L, t, "upvalues", fn->c.nupvalues);
+  }
+  return 1;
+}
+
+/* local ins, m = jit.util.funcbc(func, pc) */
+LJLIB_CF(jit_util_funcbc)
+{
+  GCproto *pt = check_Lproto(L, 0);
+  BCPos pc = (BCPos)lj_lib_checkint(L, 2);
+  if (pc < pt->sizebc) {
+    BCIns ins = proto_bc(pt)[pc];
+    BCOp op = bc_op(ins);
+    lua_assert(op < BC__MAX);
+    setintV(L->top, ins);
+    setintV(L->top+1, lj_bc_mode[op]);
+    L->top += 2;
+    return 2;
+  }
+  return 0;
+}
+
+/* local k = jit.util.funck(func, idx) */
+LJLIB_CF(jit_util_funck)
+{
+  GCproto *pt = check_Lproto(L, 0);
+  ptrdiff_t idx = (ptrdiff_t)lj_lib_checkint(L, 2);
+  if (idx >= 0) {
+    if (idx < (ptrdiff_t)pt->sizekn) {
+      copyTV(L, L->top-1, proto_knumtv(pt, idx));
+      return 1;
+    }
+  } else {
+    if (~idx < (ptrdiff_t)pt->sizekgc) {
+      GCobj *gc = proto_kgc(pt, idx);
+      setgcV(L, L->top-1, gc, ~gc->gch.gct);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+/* local name = jit.util.funcuvname(func, idx) */
+LJLIB_CF(jit_util_funcuvname)
+{
+  GCproto *pt = check_Lproto(L, 0);
+  uint32_t idx = (uint32_t)lj_lib_checkint(L, 2);
+  if (idx < pt->sizeuv) {
+    setstrV(L, L->top-1, lj_str_newz(L, lj_debug_uvname(pt, idx)));
+    return 1;
+  }
+  return 0;
+}
+
+/* -- Reflection API for traces ------------------------------------------- */
+
+#if LJ_HASJIT
+
+/* Check trace argument. Must not throw for non-existent trace numbers. */
+static GCtrace *jit_checktrace(lua_State *L)
+{
+  TraceNo tr = (TraceNo)lj_lib_checkint(L, 1);
+  jit_State *J = L2J(L);
+  if (tr > 0 && tr < J->sizetrace)
+    return traceref(J, tr);
+  return NULL;
+}
+
+/* Names of link types. ORDER LJ_TRLINK */
+static const char *const jit_trlinkname[] = {
+  "none", "root", "loop", "tail-recursion", "up-recursion", "down-recursion",
+  "interpreter", "return"
+};
+
+/* local info = jit.util.traceinfo(tr) */
+LJLIB_CF(jit_util_traceinfo)
+{
+  GCtrace *T = jit_checktrace(L);
+  if (T) {
+    GCtab *t;
+    lua_createtable(L, 0, 8);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    setintfield(L, t, "nins", (int32_t)T->nins - REF_BIAS - 1);
+    setintfield(L, t, "nk", REF_BIAS - (int32_t)T->nk);
+    setintfield(L, t, "link", T->link);
+    setintfield(L, t, "nexit", T->nsnap);
+    setstrV(L, L->top++, lj_str_newz(L, jit_trlinkname[T->linktype]));
+    lua_setfield(L, -2, "linktype");
+    /* There are many more fields. Add them only when needed. */
+    return 1;
+  }
+  return 0;
+}
+
+/* local m, ot, op1, op2, prev = jit.util.traceir(tr, idx) */
+LJLIB_CF(jit_util_traceir)
+{
+  GCtrace *T = jit_checktrace(L);
+  IRRef ref = (IRRef)lj_lib_checkint(L, 2) + REF_BIAS;
+  if (T && ref >= REF_BIAS && ref < T->nins) {
+    IRIns *ir = &T->ir[ref];
+    int32_t m = lj_ir_mode[ir->o];
+    setintV(L->top-2, m);
+    setintV(L->top-1, ir->ot);
+    setintV(L->top++, (int32_t)ir->op1 - (irm_op1(m)==IRMref ? REF_BIAS : 0));
+    setintV(L->top++, (int32_t)ir->op2 - (irm_op2(m)==IRMref ? REF_BIAS : 0));
+    setintV(L->top++, ir->prev);
+    return 5;
+  }
+  return 0;
+}
+
+/* local k, t [, slot] = jit.util.tracek(tr, idx) */
+LJLIB_CF(jit_util_tracek)
+{
+  GCtrace *T = jit_checktrace(L);
+  IRRef ref = (IRRef)lj_lib_checkint(L, 2) + REF_BIAS;
+  if (T && ref >= T->nk && ref < REF_BIAS) {
+    IRIns *ir = &T->ir[ref];
+    int32_t slot = -1;
+    if (ir->o == IR_KSLOT) {
+      slot = ir->op2;
+      ir = &T->ir[ir->op1];
+    }
+    lj_ir_kvalue(L, L->top-2, ir);
+    setintV(L->top-1, (int32_t)irt_type(ir->t));
+    if (slot == -1)
+      return 2;
+    setintV(L->top++, slot);
+    return 3;
+  }
+  return 0;
+}
+
+/* local snap = jit.util.tracesnap(tr, sn) */
+LJLIB_CF(jit_util_tracesnap)
+{
+  GCtrace *T = jit_checktrace(L);
+  SnapNo sn = (SnapNo)lj_lib_checkint(L, 2);
+  if (T && sn < T->nsnap) {
+    SnapShot *snap = &T->snap[sn];
+    SnapEntry *map = &T->snapmap[snap->mapofs];
+    MSize n, nent = snap->nent;
+    GCtab *t;
+    lua_createtable(L, nent+2, 0);
+    t = tabV(L->top-1);
+    setintV(lj_tab_setint(L, t, 0), (int32_t)snap->ref - REF_BIAS);
+    setintV(lj_tab_setint(L, t, 1), (int32_t)snap->nslots);
+    for (n = 0; n < nent; n++)
+      setintV(lj_tab_setint(L, t, (int32_t)(n+2)), (int32_t)map[n]);
+    setintV(lj_tab_setint(L, t, (int32_t)(nent+2)), (int32_t)SNAP(255, 0, 0));
+    return 1;
+  }
+  return 0;
+}
+
+/* local mcode, addr, loop = jit.util.tracemc(tr) */
+LJLIB_CF(jit_util_tracemc)
+{
+  GCtrace *T = jit_checktrace(L);
+  if (T && T->mcode != NULL) {
+    setstrV(L, L->top-1, lj_str_new(L, (const char *)T->mcode, T->szmcode));
+    setintptrV(L->top++, (intptr_t)(void *)T->mcode);
+    setintV(L->top++, T->mcloop);
+    return 3;
+  }
+  return 0;
+}
+
+/* local addr = jit.util.traceexitstub([tr,] exitno) */
+LJLIB_CF(jit_util_traceexitstub)
+{
+#ifdef EXITSTUBS_PER_GROUP
+  ExitNo exitno = (ExitNo)lj_lib_checkint(L, 1);
+  jit_State *J = L2J(L);
+  if (exitno < EXITSTUBS_PER_GROUP*LJ_MAX_EXITSTUBGR) {
+    setintptrV(L->top-1, (intptr_t)(void *)exitstub_addr(J, exitno));
+    return 1;
+  }
+#else
+  if (L->top > L->base+1) {  /* Don't throw for one-argument variant. */
+    GCtrace *T = jit_checktrace(L);
+    ExitNo exitno = (ExitNo)lj_lib_checkint(L, 2);
+    ExitNo maxexit = T->root ? T->nsnap+1 : T->nsnap;
+    if (T && T->mcode != NULL && exitno < maxexit) {
+      setintptrV(L->top-1, (intptr_t)(void *)exitstub_trace_addr(T, exitno));
+      return 1;
+    }
+  }
+#endif
+  return 0;
+}
+
+/* local addr = jit.util.ircalladdr(idx) */
+LJLIB_CF(jit_util_ircalladdr)
+{
+  uint32_t idx = (uint32_t)lj_lib_checkint(L, 1);
+  if (idx < IRCALL__MAX) {
+    setintptrV(L->top-1, (intptr_t)(void *)lj_ir_callinfo[idx].func);
+    return 1;
+  }
+  return 0;
+}
+
+#endif
+
+#include "lj_libdef.h"
+
+/* -- jit.opt module ------------------------------------------------------ */
+
+#if LJ_HASJIT
+
+#define LJLIB_MODULE_jit_opt
+
+/* Parse optimization level. */
+static int jitopt_level(jit_State *J, const char *str)
+{
+  if (str[0] >= '0' && str[0] <= '9' && str[1] == '\0') {
+    uint32_t flags;
+    if (str[0] == '0') flags = JIT_F_OPT_0;
+    else if (str[0] == '1') flags = JIT_F_OPT_1;
+    else if (str[0] == '2') flags = JIT_F_OPT_2;
+    else flags = JIT_F_OPT_3;
+    J->flags = (J->flags & ~JIT_F_OPT_MASK) | flags;
+    return 1;  /* Ok. */
+  }
+  return 0;  /* No match. */
+}
+
+/* Parse optimization flag. */
+static int jitopt_flag(jit_State *J, const char *str)
+{
+  const char *lst = JIT_F_OPTSTRING;
+  uint32_t opt;
+  int set = 1;
+  if (str[0] == '+') {
+    str++;
+  } else if (str[0] == '-') {
+    str++;
+    set = 0;
+  } else if (str[0] == 'n' && str[1] == 'o') {
+    str += str[2] == '-' ? 3 : 2;
+    set = 0;
+  }
+  for (opt = JIT_F_OPT_FIRST; ; opt <<= 1) {
+    size_t len = *(const uint8_t *)lst;
+    if (len == 0)
+      break;
+    if (strncmp(str, lst+1, len) == 0 && str[len] == '\0') {
+      if (set) J->flags |= opt; else J->flags &= ~opt;
+      return 1;  /* Ok. */
+    }
+    lst += 1+len;
+  }
+  return 0;  /* No match. */
+}
+
+/* Parse optimization parameter. */
+static int jitopt_param(jit_State *J, const char *str)
+{
+  const char *lst = JIT_P_STRING;
+  int i;
+  for (i = 0; i < JIT_P__MAX; i++) {
+    size_t len = *(const uint8_t *)lst;
+    lua_assert(len != 0);
+    if (strncmp(str, lst+1, len) == 0 && str[len] == '=') {
+      int32_t n = 0;
+      const char *p = &str[len+1];
+      while (*p >= '0' && *p <= '9')
+	n = n*10 + (*p++ - '0');
+      if (*p) return 0;  /* Malformed number. */
+      J->param[i] = n;
+      if (i == JIT_P_hotloop)
+	lj_dispatch_init_hotcount(J2G(J));
+      return 1;  /* Ok. */
+    }
+    lst += 1+len;
+  }
+  return 0;  /* No match. */
+}
+
+/* jit.opt.start(flags...) */
+LJLIB_CF(jit_opt_start)
+{
+  jit_State *J = L2J(L);
+  int nargs = (int)(L->top - L->base);
+  if (nargs == 0) {
+    J->flags = (J->flags & ~JIT_F_OPT_MASK) | JIT_F_OPT_DEFAULT;
+  } else {
+    int i;
+    for (i = 1; i <= nargs; i++) {
+      const char *str = strdata(lj_lib_checkstr(L, i));
+      if (!jitopt_level(J, str) &&
+	  !jitopt_flag(J, str) &&
+	  !jitopt_param(J, str))
+	lj_err_callerv(L, LJ_ERR_JITOPT, str);
+    }
+  }
+  return 0;
+}
+
+#include "lj_libdef.h"
+
+#endif
+
+/* -- JIT compiler initialization ----------------------------------------- */
+
+#if LJ_HASJIT
+/* Default values for JIT parameters. */
+static const int32_t jit_param_default[JIT_P__MAX+1] = {
+#define JIT_PARAMINIT(len, name, value)	(value),
+JIT_PARAMDEF(JIT_PARAMINIT)
+#undef JIT_PARAMINIT
+  0
+};
+#endif
+
+#if LJ_TARGET_ARM && LJ_TARGET_LINUX
+#include <sys/utsname.h>
+#endif
+
+/* Arch-dependent CPU detection. */
+static uint32_t jit_cpudetect(lua_State *L)
+{
+  uint32_t flags = 0;
+#if LJ_TARGET_X86ORX64
+  uint32_t vendor[4];
+  uint32_t features[4];
+  if (lj_vm_cpuid(0, vendor) && lj_vm_cpuid(1, features)) {
+#if !LJ_HASJIT
+#define JIT_F_CMOV	1
+#define JIT_F_SSE2	2
+#endif
+    flags |= ((features[3] >> 15)&1) * JIT_F_CMOV;
+    flags |= ((features[3] >> 26)&1) * JIT_F_SSE2;
+#if LJ_HASJIT
+    flags |= ((features[2] >> 0)&1) * JIT_F_SSE3;
+    flags |= ((features[2] >> 19)&1) * JIT_F_SSE4_1;
+    if (vendor[2] == 0x6c65746e) {  /* Intel. */
+      if ((features[0] & 0x0ff00f00) == 0x00000f00)  /* P4. */
+	flags |= JIT_F_P4;  /* Currently unused. */
+      else if ((features[0] & 0x0fff0ff0) == 0x000106c0)  /* Atom. */
+	flags |= JIT_F_LEA_AGU;
+    } else if (vendor[2] == 0x444d4163) {  /* AMD. */
+      uint32_t fam = (features[0] & 0x0ff00f00);
+      if (fam == 0x00000f00)  /* K8. */
+	flags |= JIT_F_SPLIT_XMM;
+      if (fam >= 0x00000f00)  /* K8, K10. */
+	flags |= JIT_F_PREFER_IMUL;
+    }
+#endif
+  }
+  /* Check for required instruction set support on x86 (unnecessary on x64). */
+#if LJ_TARGET_X86
+#if !defined(LUAJIT_CPU_NOCMOV)
+  if (!(flags & JIT_F_CMOV))
+    luaL_error(L, "CPU not supported");
+#endif
+#if defined(LUAJIT_CPU_SSE2)
+  if (!(flags & JIT_F_SSE2))
+    luaL_error(L, "CPU does not support SSE2 (recompile without -DLUAJIT_CPU_SSE2)");
+#endif
+#endif
+#elif LJ_TARGET_ARM
+#if LJ_HASJIT
+  int ver = LJ_ARCH_VERSION;  /* Compile-time ARM CPU detection. */
+#if LJ_TARGET_LINUX
+  if (ver < 70) {  /* Runtime ARM CPU detection. */
+    struct utsname ut;
+    uname(&ut);
+    if (strncmp(ut.machine, "armv", 4) == 0) {
+      if (ut.machine[4] >= '7')
+	ver = 70;
+      else if (ut.machine[4] == '6')
+	ver = 60;
+    }
+  }
+#endif
+  flags |= ver >= 70 ? JIT_F_ARMV7 :
+	   ver >= 61 ? JIT_F_ARMV6T2_ :
+	   ver >= 60 ? JIT_F_ARMV6_ : 0;
+  flags |= LJ_ARCH_HASFPU == 0 ? 0 : ver >= 70 ? JIT_F_VFPV3 : JIT_F_VFPV2;
+#endif
+#elif LJ_TARGET_PPC
+#if LJ_HASJIT
+#if LJ_ARCH_SQRT
+  flags |= JIT_F_SQRT;
+#endif
+#if LJ_ARCH_ROUND
+  flags |= JIT_F_ROUND;
+#endif
+#endif
+#elif LJ_TARGET_PPCSPE
+  /* Nothing to do. */
+#elif LJ_TARGET_MIPS
+#if LJ_HASJIT
+  /* Compile-time MIPS CPU detection. */
+#if LJ_ARCH_VERSION >= 20
+  flags |= JIT_F_MIPS32R2;
+#endif
+  /* Runtime MIPS CPU detection. */
+#if defined(__GNUC__)
+  if (!(flags & JIT_F_MIPS32R2)) {
+    int x;
+    /* On MIPS32R1 rotr is treated as srl. rotr r2,r2,1 -> srl r2,r2,1. */
+    __asm__("li $2, 1\n\t.long 0x00221042\n\tmove %0, $2" : "=r"(x) : : "$2");
+    if (x) flags |= JIT_F_MIPS32R2;  /* Either 0x80000000 (R2) or 0 (R1). */
+  }
+#endif
+#endif
+#else
+#error "Missing CPU detection for this architecture"
+#endif
+  UNUSED(L);
+  return flags;
+}
+
+/* Initialize JIT compiler. */
+static void jit_init(lua_State *L)
+{
+  uint32_t flags = jit_cpudetect(L);
+#if LJ_HASJIT
+  jit_State *J = L2J(L);
+#if LJ_TARGET_X86
+  /* Silently turn off the JIT compiler on CPUs without SSE2. */
+  if ((flags & JIT_F_SSE2))
+#endif
+    J->flags = flags | JIT_F_ON | JIT_F_OPT_DEFAULT;
+  memcpy(J->param, jit_param_default, sizeof(J->param));
+  lj_dispatch_update(G(L));
+#else
+  UNUSED(flags);
+#endif
+}
+
+LUALIB_API int luaopen_jit(lua_State *L)
+{
+  lua_pushliteral(L, LJ_OS_NAME);
+  lua_pushliteral(L, LJ_ARCH_NAME);
+  lua_pushinteger(L, LUAJIT_VERSION_NUM);
+  lua_pushliteral(L, LUAJIT_VERSION);
+  LJ_LIB_REG(L, LUA_JITLIBNAME, jit);
+#ifndef LUAJIT_DISABLE_JITUTIL
+  LJ_LIB_REG(L, "jit.util", jit_util);
+#endif
+#if LJ_HASJIT
+  LJ_LIB_REG(L, "jit.opt", jit_opt);
+#endif
+  L->top -= 2;
+  jit_init(L);
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_math.c b/lib/luajit/src/lib_math.c
new file mode 100644
index 00000000..3aa5c6b0
--- /dev/null
+++ b/lib/luajit/src/lib_math.c
@@ -0,0 +1,233 @@
+/*
+** Math library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <math.h>
+
+#define lib_math_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_lib.h"
+#include "lj_vm.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_math
+
+LJLIB_ASM(math_abs)		LJLIB_REC(.)
+{
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_floor)		LJLIB_REC(math_round IRFPM_FLOOR)
+LJLIB_ASM_(math_ceil)		LJLIB_REC(math_round IRFPM_CEIL)
+
+LJLIB_ASM(math_sqrt)		LJLIB_REC(math_unary IRFPM_SQRT)
+{
+  lj_lib_checknum(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_log10)		LJLIB_REC(math_unary IRFPM_LOG10)
+LJLIB_ASM_(math_exp)		LJLIB_REC(math_unary IRFPM_EXP)
+LJLIB_ASM_(math_sin)		LJLIB_REC(math_unary IRFPM_SIN)
+LJLIB_ASM_(math_cos)		LJLIB_REC(math_unary IRFPM_COS)
+LJLIB_ASM_(math_tan)		LJLIB_REC(math_unary IRFPM_TAN)
+LJLIB_ASM_(math_asin)		LJLIB_REC(math_atrig FF_math_asin)
+LJLIB_ASM_(math_acos)		LJLIB_REC(math_atrig FF_math_acos)
+LJLIB_ASM_(math_atan)		LJLIB_REC(math_atrig FF_math_atan)
+LJLIB_ASM_(math_sinh)		LJLIB_REC(math_htrig IRCALL_sinh)
+LJLIB_ASM_(math_cosh)		LJLIB_REC(math_htrig IRCALL_cosh)
+LJLIB_ASM_(math_tanh)		LJLIB_REC(math_htrig IRCALL_tanh)
+LJLIB_ASM_(math_frexp)
+LJLIB_ASM_(math_modf)		LJLIB_REC(.)
+
+LJLIB_PUSH(57.29577951308232)
+LJLIB_ASM_(math_deg)		LJLIB_REC(math_degrad)
+
+LJLIB_PUSH(0.017453292519943295)
+LJLIB_ASM_(math_rad)		LJLIB_REC(math_degrad)
+
+LJLIB_ASM(math_log)		LJLIB_REC(math_log)
+{
+  double x = lj_lib_checknum(L, 1);
+  if (L->base+1 < L->top) {
+    double y = lj_lib_checknum(L, 2);
+#ifdef LUAJIT_NO_LOG2
+    x = log(x); y = 1.0 / log(y);
+#else
+    x = lj_vm_log2(x); y = 1.0 / lj_vm_log2(y);
+#endif
+    setnumV(L->base-1, x*y);  /* Do NOT join the expression to x / y. */
+    return FFH_RES(1);
+  }
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(math_atan2)		LJLIB_REC(.)
+{
+  lj_lib_checknum(L, 1);
+  lj_lib_checknum(L, 2);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_pow)		LJLIB_REC(.)
+LJLIB_ASM_(math_fmod)
+
+LJLIB_ASM(math_ldexp)		LJLIB_REC(.)
+{
+  lj_lib_checknum(L, 1);
+#if LJ_DUALNUM && !LJ_TARGET_X86ORX64
+  lj_lib_checkint(L, 2);
+#else
+  lj_lib_checknum(L, 2);
+#endif
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(math_min)		LJLIB_REC(math_minmax IR_MIN)
+{
+  int i = 0;
+  do { lj_lib_checknumber(L, ++i); } while (L->base+i < L->top);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_max)		LJLIB_REC(math_minmax IR_MAX)
+
+LJLIB_PUSH(3.14159265358979323846) LJLIB_SET(pi)
+LJLIB_PUSH(1e310) LJLIB_SET(huge)
+
+/* ------------------------------------------------------------------------ */
+
+/* This implements a Tausworthe PRNG with period 2^223. Based on:
+**   Tables of maximally-equidistributed combined LFSR generators,
+**   Pierre L'Ecuyer, 1991, table 3, 1st entry.
+** Full-period ME-CF generator with L=64, J=4, k=223, N1=49.
+*/
+
+/* PRNG state. */
+struct RandomState {
+  uint64_t gen[4];	/* State of the 4 LFSR generators. */
+  int valid;		/* State is valid. */
+};
+
+/* Union needed for bit-pattern conversion between uint64_t and double. */
+typedef union { uint64_t u64; double d; } U64double;
+
+/* Update generator i and compute a running xor of all states. */
+#define TW223_GEN(i, k, q, s) \
+  z = rs->gen[i]; \
+  z = (((z<<q)^z) >> (k-s)) ^ ((z&((uint64_t)(int64_t)-1 << (64-k)))<<s); \
+  r ^= z; rs->gen[i] = z;
+
+/* PRNG step function. Returns a double in the range 1.0 <= d < 2.0. */
+LJ_NOINLINE uint64_t LJ_FASTCALL lj_math_random_step(RandomState *rs)
+{
+  uint64_t z, r = 0;
+  TW223_GEN(0, 63, 31, 18)
+  TW223_GEN(1, 58, 19, 28)
+  TW223_GEN(2, 55, 24,  7)
+  TW223_GEN(3, 47, 21,  8)
+  return (r & U64x(000fffff,ffffffff)) | U64x(3ff00000,00000000);
+}
+
+/* PRNG initialization function. */
+static void random_init(RandomState *rs, double d)
+{
+  uint32_t r = 0x11090601;  /* 64-k[i] as four 8 bit constants. */
+  int i;
+  for (i = 0; i < 4; i++) {
+    U64double u;
+    uint32_t m = 1u << (r&255);
+    r >>= 8;
+    u.d = d = d * 3.14159265358979323846 + 2.7182818284590452354;
+    if (u.u64 < m) u.u64 += m;  /* Ensure k[i] MSB of gen[i] are non-zero. */
+    rs->gen[i] = u.u64;
+  }
+  rs->valid = 1;
+  for (i = 0; i < 10; i++)
+    lj_math_random_step(rs);
+}
+
+/* PRNG extract function. */
+LJLIB_PUSH(top-2)  /* Upvalue holds userdata with RandomState. */
+LJLIB_CF(math_random)		LJLIB_REC(.)
+{
+  int n = (int)(L->top - L->base);
+  RandomState *rs = (RandomState *)(uddata(udataV(lj_lib_upvalue(L, 1))));
+  U64double u;
+  double d;
+  if (LJ_UNLIKELY(!rs->valid)) random_init(rs, 0.0);
+  u.u64 = lj_math_random_step(rs);
+  d = u.d - 1.0;
+  if (n > 0) {
+#if LJ_DUALNUM
+    int isint = 1;
+    double r1;
+    lj_lib_checknumber(L, 1);
+    if (tvisint(L->base)) {
+      r1 = (lua_Number)intV(L->base);
+    } else {
+      isint = 0;
+      r1 = numV(L->base);
+    }
+#else
+    double r1 = lj_lib_checknum(L, 1);
+#endif
+    if (n == 1) {
+      d = lj_vm_floor(d*r1) + 1.0;  /* d is an int in range [1, r1] */
+    } else {
+#if LJ_DUALNUM
+      double r2;
+      lj_lib_checknumber(L, 2);
+      if (tvisint(L->base+1)) {
+	r2 = (lua_Number)intV(L->base+1);
+      } else {
+	isint = 0;
+	r2 = numV(L->base+1);
+      }
+#else
+      double r2 = lj_lib_checknum(L, 2);
+#endif
+      d = lj_vm_floor(d*(r2-r1+1.0)) + r1;  /* d is an int in range [r1, r2] */
+    }
+#if LJ_DUALNUM
+    if (isint) {
+      setintV(L->top-1, lj_num2int(d));
+      return 1;
+    }
+#endif
+  }  /* else: d is a double in range [0, 1] */
+  setnumV(L->top++, d);
+  return 1;
+}
+
+/* PRNG seed function. */
+LJLIB_PUSH(top-2)  /* Upvalue holds userdata with RandomState. */
+LJLIB_CF(math_randomseed)
+{
+  RandomState *rs = (RandomState *)(uddata(udataV(lj_lib_upvalue(L, 1))));
+  random_init(rs, lj_lib_checknum(L, 1));
+  return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_math(lua_State *L)
+{
+  RandomState *rs;
+  rs = (RandomState *)lua_newuserdata(L, sizeof(RandomState));
+  rs->valid = 0;  /* Use lazy initialization to save some time on startup. */
+  LJ_LIB_REG(L, LUA_MATHLIBNAME, math);
+#if defined(LUA_COMPAT_MOD) && !LJ_52
+  lua_getfield(L, -1, "fmod");
+  lua_setfield(L, -2, "mod");
+#endif
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_os.c b/lib/luajit/src/lib_os.c
new file mode 100644
index 00000000..f62e8c8b
--- /dev/null
+++ b/lib/luajit/src/lib_os.c
@@ -0,0 +1,280 @@
+/*
+** OS library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <errno.h>
+#include <locale.h>
+#include <time.h>
+
+#define lib_os_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_lib.h"
+
+#if LJ_TARGET_POSIX
+#include <unistd.h>
+#else
+#include <stdio.h>
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_os
+
+LJLIB_CF(os_execute)
+{
+#if LJ_TARGET_CONSOLE
+#if LJ_52
+  errno = ENOSYS;
+  return luaL_fileresult(L, 0, NULL);
+#else
+  lua_pushinteger(L, -1);
+  return 1;
+#endif
+#else
+  const char *cmd = luaL_optstring(L, 1, NULL);
+  int stat = system(cmd);
+#if LJ_52
+  if (cmd)
+    return luaL_execresult(L, stat);
+  setboolV(L->top++, 1);
+#else
+  setintV(L->top++, stat);
+#endif
+  return 1;
+#endif
+}
+
+LJLIB_CF(os_remove)
+{
+  const char *filename = luaL_checkstring(L, 1);
+  return luaL_fileresult(L, remove(filename) == 0, filename);
+}
+
+LJLIB_CF(os_rename)
+{
+  const char *fromname = luaL_checkstring(L, 1);
+  const char *toname = luaL_checkstring(L, 2);
+  return luaL_fileresult(L, rename(fromname, toname) == 0, fromname);
+}
+
+LJLIB_CF(os_tmpname)
+{
+#if LJ_TARGET_PS3 || LJ_TARGET_PS4
+  lj_err_caller(L, LJ_ERR_OSUNIQF);
+  return 0;
+#else
+#if LJ_TARGET_POSIX
+  char buf[15+1];
+  int fp;
+  strcpy(buf, "/tmp/lua_XXXXXX");
+  fp = mkstemp(buf);
+  if (fp != -1)
+    close(fp);
+  else
+    lj_err_caller(L, LJ_ERR_OSUNIQF);
+#else
+  char buf[L_tmpnam];
+  if (tmpnam(buf) == NULL)
+    lj_err_caller(L, LJ_ERR_OSUNIQF);
+#endif
+  lua_pushstring(L, buf);
+  return 1;
+#endif
+}
+
+LJLIB_CF(os_getenv)
+{
+#if LJ_TARGET_CONSOLE
+  lua_pushnil(L);
+#else
+  lua_pushstring(L, getenv(luaL_checkstring(L, 1)));  /* if NULL push nil */
+#endif
+  return 1;
+}
+
+LJLIB_CF(os_exit)
+{
+  int status;
+  if (L->base < L->top && tvisbool(L->base))
+    status = boolV(L->base) ? EXIT_SUCCESS : EXIT_FAILURE;
+  else
+    status = lj_lib_optint(L, 1, EXIT_SUCCESS);
+  if (L->base+1 < L->top && tvistruecond(L->base+1))
+    lua_close(L);
+  exit(status);
+  return 0;  /* Unreachable. */
+}
+
+LJLIB_CF(os_clock)
+{
+  setnumV(L->top++, ((lua_Number)clock())*(1.0/(lua_Number)CLOCKS_PER_SEC));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void setfield(lua_State *L, const char *key, int value)
+{
+  lua_pushinteger(L, value);
+  lua_setfield(L, -2, key);
+}
+
+static void setboolfield(lua_State *L, const char *key, int value)
+{
+  if (value < 0)  /* undefined? */
+    return;  /* does not set field */
+  lua_pushboolean(L, value);
+  lua_setfield(L, -2, key);
+}
+
+static int getboolfield(lua_State *L, const char *key)
+{
+  int res;
+  lua_getfield(L, -1, key);
+  res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1);
+  lua_pop(L, 1);
+  return res;
+}
+
+static int getfield(lua_State *L, const char *key, int d)
+{
+  int res;
+  lua_getfield(L, -1, key);
+  if (lua_isnumber(L, -1)) {
+    res = (int)lua_tointeger(L, -1);
+  } else {
+    if (d < 0)
+      lj_err_callerv(L, LJ_ERR_OSDATEF, key);
+    res = d;
+  }
+  lua_pop(L, 1);
+  return res;
+}
+
+LJLIB_CF(os_date)
+{
+  const char *s = luaL_optstring(L, 1, "%c");
+  time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL));
+  struct tm *stm;
+#if LJ_TARGET_POSIX
+  struct tm rtm;
+#endif
+  if (*s == '!') {  /* UTC? */
+    s++;  /* Skip '!' */
+#if LJ_TARGET_POSIX
+    stm = gmtime_r(&t, &rtm);
+#else
+    stm = gmtime(&t);
+#endif
+  } else {
+#if LJ_TARGET_POSIX
+    stm = localtime_r(&t, &rtm);
+#else
+    stm = localtime(&t);
+#endif
+  }
+  if (stm == NULL) {  /* Invalid date? */
+    setnilV(L->top-1);
+  } else if (strcmp(s, "*t") == 0) {
+    lua_createtable(L, 0, 9);  /* 9 = number of fields */
+    setfield(L, "sec", stm->tm_sec);
+    setfield(L, "min", stm->tm_min);
+    setfield(L, "hour", stm->tm_hour);
+    setfield(L, "day", stm->tm_mday);
+    setfield(L, "month", stm->tm_mon+1);
+    setfield(L, "year", stm->tm_year+1900);
+    setfield(L, "wday", stm->tm_wday+1);
+    setfield(L, "yday", stm->tm_yday+1);
+    setboolfield(L, "isdst", stm->tm_isdst);
+  } else {
+    char cc[3];
+    luaL_Buffer b;
+    cc[0] = '%'; cc[2] = '\0';
+    luaL_buffinit(L, &b);
+    for (; *s; s++) {
+      if (*s != '%' || *(s + 1) == '\0') {  /* No conversion specifier? */
+	luaL_addchar(&b, *s);
+      } else {
+	size_t reslen;
+	char buff[200];  /* Should be big enough for any conversion result. */
+	cc[1] = *(++s);
+	reslen = strftime(buff, sizeof(buff), cc, stm);
+	luaL_addlstring(&b, buff, reslen);
+      }
+    }
+    luaL_pushresult(&b);
+  }
+  return 1;
+}
+
+LJLIB_CF(os_time)
+{
+  time_t t;
+  if (lua_isnoneornil(L, 1)) {  /* called without args? */
+    t = time(NULL);  /* get current time */
+  } else {
+    struct tm ts;
+    luaL_checktype(L, 1, LUA_TTABLE);
+    lua_settop(L, 1);  /* make sure table is at the top */
+    ts.tm_sec = getfield(L, "sec", 0);
+    ts.tm_min = getfield(L, "min", 0);
+    ts.tm_hour = getfield(L, "hour", 12);
+    ts.tm_mday = getfield(L, "day", -1);
+    ts.tm_mon = getfield(L, "month", -1) - 1;
+    ts.tm_year = getfield(L, "year", -1) - 1900;
+    ts.tm_isdst = getboolfield(L, "isdst");
+    t = mktime(&ts);
+  }
+  if (t == (time_t)(-1))
+    lua_pushnil(L);
+  else
+    lua_pushnumber(L, (lua_Number)t);
+  return 1;
+}
+
+LJLIB_CF(os_difftime)
+{
+  lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)),
+			     (time_t)(luaL_optnumber(L, 2, (lua_Number)0))));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(os_setlocale)
+{
+  GCstr *s = lj_lib_optstr(L, 1);
+  const char *str = s ? strdata(s) : NULL;
+  int opt = lj_lib_checkopt(L, 2, 6,
+    "\5ctype\7numeric\4time\7collate\10monetary\1\377\3all");
+  if (opt == 0) opt = LC_CTYPE;
+  else if (opt == 1) opt = LC_NUMERIC;
+  else if (opt == 2) opt = LC_TIME;
+  else if (opt == 3) opt = LC_COLLATE;
+  else if (opt == 4) opt = LC_MONETARY;
+  else if (opt == 6) opt = LC_ALL;
+  lua_pushstring(L, setlocale(opt, str));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_os(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_OSLIBNAME, os);
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_package.c b/lib/luajit/src/lib_package.c
new file mode 100644
index 00000000..e3410390
--- /dev/null
+++ b/lib/luajit/src/lib_package.c
@@ -0,0 +1,602 @@
+/*
+** Package library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2012 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_package_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+/* Error codes for ll_loadfunc. */
+#define PACKAGE_ERR_LIB		1
+#define PACKAGE_ERR_FUNC	2
+#define PACKAGE_ERR_LOAD	3
+
+/* Redefined in platform specific part. */
+#define PACKAGE_LIB_FAIL	"open"
+#define setprogdir(L)		((void)0)
+
+/* Symbol name prefixes. */
+#define SYMPREFIX_CF		"luaopen_%s"
+#define SYMPREFIX_BC		"luaJIT_BC_%s"
+
+#if LJ_TARGET_DLOPEN
+
+#include <dlfcn.h>
+
+static void ll_unloadlib(void *lib)
+{
+  dlclose(lib);
+}
+
+static void *ll_load(lua_State *L, const char *path, int gl)
+{
+  void *lib = dlopen(path, RTLD_NOW | (gl ? RTLD_GLOBAL : RTLD_LOCAL));
+  if (lib == NULL) lua_pushstring(L, dlerror());
+  return lib;
+}
+
+static lua_CFunction ll_sym(lua_State *L, void *lib, const char *sym)
+{
+  lua_CFunction f = (lua_CFunction)dlsym(lib, sym);
+  if (f == NULL) lua_pushstring(L, dlerror());
+  return f;
+}
+
+static const char *ll_bcsym(void *lib, const char *sym)
+{
+#if defined(RTLD_DEFAULT)
+  if (lib == NULL) lib = RTLD_DEFAULT;
+#elif LJ_TARGET_OSX || LJ_TARGET_BSD
+  if (lib == NULL) lib = (void *)(intptr_t)-2;
+#endif
+  return (const char *)dlsym(lib, sym);
+}
+
+#elif LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
+#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS  4
+#define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT  2
+BOOL WINAPI GetModuleHandleExA(DWORD, LPCSTR, HMODULE*);
+#endif
+
+#undef setprogdir
+
+static void setprogdir(lua_State *L)
+{
+  char buff[MAX_PATH + 1];
+  char *lb;
+  DWORD nsize = sizeof(buff);
+  DWORD n = GetModuleFileNameA(NULL, buff, nsize);
+  if (n == 0 || n == nsize || (lb = strrchr(buff, '\\')) == NULL) {
+    luaL_error(L, "unable to get ModuleFileName");
+  } else {
+    *lb = '\0';
+    luaL_gsub(L, lua_tostring(L, -1), LUA_EXECDIR, buff);
+    lua_remove(L, -2);  /* remove original string */
+  }
+}
+
+static void pusherror(lua_State *L)
+{
+  DWORD error = GetLastError();
+  char buffer[128];
+  if (FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM,
+      NULL, error, 0, buffer, sizeof(buffer), NULL))
+    lua_pushstring(L, buffer);
+  else
+    lua_pushfstring(L, "system error %d\n", error);
+}
+
+static void ll_unloadlib(void *lib)
+{
+  FreeLibrary((HINSTANCE)lib);
+}
+
+static void *ll_load(lua_State *L, const char *path, int gl)
+{
+  HINSTANCE lib = LoadLibraryA(path);
+  if (lib == NULL) pusherror(L);
+  UNUSED(gl);
+  return lib;
+}
+
+static lua_CFunction ll_sym(lua_State *L, void *lib, const char *sym)
+{
+  lua_CFunction f = (lua_CFunction)GetProcAddress((HINSTANCE)lib, sym);
+  if (f == NULL) pusherror(L);
+  return f;
+}
+
+static const char *ll_bcsym(void *lib, const char *sym)
+{
+  if (lib) {
+    return (const char *)GetProcAddress((HINSTANCE)lib, sym);
+  } else {
+    HINSTANCE h = GetModuleHandleA(NULL);
+    const char *p = (const char *)GetProcAddress(h, sym);
+    if (p == NULL && GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS|GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+					(const char *)ll_bcsym, &h))
+      p = (const char *)GetProcAddress(h, sym);
+    return p;
+  }
+}
+
+#else
+
+#undef PACKAGE_LIB_FAIL
+#define PACKAGE_LIB_FAIL	"absent"
+
+#define DLMSG	"dynamic libraries not enabled; no support for target OS"
+
+static void ll_unloadlib(void *lib)
+{
+  UNUSED(lib);
+}
+
+static void *ll_load(lua_State *L, const char *path, int gl)
+{
+  UNUSED(path); UNUSED(gl);
+  lua_pushliteral(L, DLMSG);
+  return NULL;
+}
+
+static lua_CFunction ll_sym(lua_State *L, void *lib, const char *sym)
+{
+  UNUSED(lib); UNUSED(sym);
+  lua_pushliteral(L, DLMSG);
+  return NULL;
+}
+
+static const char *ll_bcsym(void *lib, const char *sym)
+{
+  UNUSED(lib); UNUSED(sym);
+  return NULL;
+}
+
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+static void **ll_register(lua_State *L, const char *path)
+{
+  void **plib;
+  lua_pushfstring(L, "LOADLIB: %s", path);
+  lua_gettable(L, LUA_REGISTRYINDEX);  /* check library in registry? */
+  if (!lua_isnil(L, -1)) {  /* is there an entry? */
+    plib = (void **)lua_touserdata(L, -1);
+  } else {  /* no entry yet; create one */
+    lua_pop(L, 1);
+    plib = (void **)lua_newuserdata(L, sizeof(void *));
+    *plib = NULL;
+    luaL_getmetatable(L, "_LOADLIB");
+    lua_setmetatable(L, -2);
+    lua_pushfstring(L, "LOADLIB: %s", path);
+    lua_pushvalue(L, -2);
+    lua_settable(L, LUA_REGISTRYINDEX);
+  }
+  return plib;
+}
+
+static const char *mksymname(lua_State *L, const char *modname,
+			     const char *prefix)
+{
+  const char *funcname;
+  const char *mark = strchr(modname, *LUA_IGMARK);
+  if (mark) modname = mark + 1;
+  funcname = luaL_gsub(L, modname, ".", "_");
+  funcname = lua_pushfstring(L, prefix, funcname);
+  lua_remove(L, -2);  /* remove 'gsub' result */
+  return funcname;
+}
+
+static int ll_loadfunc(lua_State *L, const char *path, const char *name, int r)
+{
+  void **reg = ll_register(L, path);
+  if (*reg == NULL) *reg = ll_load(L, path, (*name == '*'));
+  if (*reg == NULL) {
+    return PACKAGE_ERR_LIB;  /* Unable to load library. */
+  } else if (*name == '*') {  /* Only load library into global namespace. */
+    lua_pushboolean(L, 1);
+    return 0;
+  } else {
+    const char *sym = r ? name : mksymname(L, name, SYMPREFIX_CF);
+    lua_CFunction f = ll_sym(L, *reg, sym);
+    if (f) {
+      lua_pushcfunction(L, f);
+      return 0;
+    }
+    if (!r) {
+      const char *bcdata = ll_bcsym(*reg, mksymname(L, name, SYMPREFIX_BC));
+      lua_pop(L, 1);
+      if (bcdata) {
+	if (luaL_loadbuffer(L, bcdata, ~(size_t)0, name) != 0)
+	  return PACKAGE_ERR_LOAD;
+	return 0;
+      }
+    }
+    return PACKAGE_ERR_FUNC;  /* Unable to find function. */
+  }
+}
+
+static int lj_cf_package_loadlib(lua_State *L)
+{
+  const char *path = luaL_checkstring(L, 1);
+  const char *init = luaL_checkstring(L, 2);
+  int st = ll_loadfunc(L, path, init, 1);
+  if (st == 0) {  /* no errors? */
+    return 1;  /* return the loaded function */
+  } else {  /* error; error message is on stack top */
+    lua_pushnil(L);
+    lua_insert(L, -2);
+    lua_pushstring(L, (st == PACKAGE_ERR_LIB) ?  PACKAGE_LIB_FAIL : "init");
+    return 3;  /* return nil, error message, and where */
+  }
+}
+
+static int lj_cf_package_unloadlib(lua_State *L)
+{
+  void **lib = (void **)luaL_checkudata(L, 1, "_LOADLIB");
+  if (*lib) ll_unloadlib(*lib);
+  *lib = NULL;  /* mark library as closed */
+  return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static int readable(const char *filename)
+{
+  FILE *f = fopen(filename, "r");  /* try to open file */
+  if (f == NULL) return 0;  /* open failed */
+  fclose(f);
+  return 1;
+}
+
+static const char *pushnexttemplate(lua_State *L, const char *path)
+{
+  const char *l;
+  while (*path == *LUA_PATHSEP) path++;  /* skip separators */
+  if (*path == '\0') return NULL;  /* no more templates */
+  l = strchr(path, *LUA_PATHSEP);  /* find next separator */
+  if (l == NULL) l = path + strlen(path);
+  lua_pushlstring(L, path, (size_t)(l - path));  /* template */
+  return l;
+}
+
+static const char *searchpath (lua_State *L, const char *name,
+			       const char *path, const char *sep,
+			       const char *dirsep)
+{
+  luaL_Buffer msg;  /* to build error message */
+  luaL_buffinit(L, &msg);
+  if (*sep != '\0')  /* non-empty separator? */
+    name = luaL_gsub(L, name, sep, dirsep);  /* replace it by 'dirsep' */
+  while ((path = pushnexttemplate(L, path)) != NULL) {
+    const char *filename = luaL_gsub(L, lua_tostring(L, -1),
+				     LUA_PATH_MARK, name);
+    lua_remove(L, -2);  /* remove path template */
+    if (readable(filename))  /* does file exist and is readable? */
+      return filename;  /* return that file name */
+    lua_pushfstring(L, "\n\tno file " LUA_QS, filename);
+    lua_remove(L, -2);  /* remove file name */
+    luaL_addvalue(&msg);  /* concatenate error msg. entry */
+  }
+  luaL_pushresult(&msg);  /* create error message */
+  return NULL;  /* not found */
+}
+
+static int lj_cf_package_searchpath(lua_State *L)
+{
+  const char *f = searchpath(L, luaL_checkstring(L, 1),
+				luaL_checkstring(L, 2),
+				luaL_optstring(L, 3, "."),
+				luaL_optstring(L, 4, LUA_DIRSEP));
+  if (f != NULL) {
+    return 1;
+  } else {  /* error message is on top of the stack */
+    lua_pushnil(L);
+    lua_insert(L, -2);
+    return 2;  /* return nil + error message */
+  }
+}
+
+static const char *findfile(lua_State *L, const char *name,
+			    const char *pname)
+{
+  const char *path;
+  lua_getfield(L, LUA_ENVIRONINDEX, pname);
+  path = lua_tostring(L, -1);
+  if (path == NULL)
+    luaL_error(L, LUA_QL("package.%s") " must be a string", pname);
+  return searchpath(L, name, path, ".", LUA_DIRSEP);
+}
+
+static void loaderror(lua_State *L, const char *filename)
+{
+  luaL_error(L, "error loading module " LUA_QS " from file " LUA_QS ":\n\t%s",
+	     lua_tostring(L, 1), filename, lua_tostring(L, -1));
+}
+
+static int lj_cf_package_loader_lua(lua_State *L)
+{
+  const char *filename;
+  const char *name = luaL_checkstring(L, 1);
+  filename = findfile(L, name, "path");
+  if (filename == NULL) return 1;  /* library not found in this path */
+  if (luaL_loadfile(L, filename) != 0)
+    loaderror(L, filename);
+  return 1;  /* library loaded successfully */
+}
+
+static int lj_cf_package_loader_c(lua_State *L)
+{
+  const char *name = luaL_checkstring(L, 1);
+  const char *filename = findfile(L, name, "cpath");
+  if (filename == NULL) return 1;  /* library not found in this path */
+  if (ll_loadfunc(L, filename, name, 0) != 0)
+    loaderror(L, filename);
+  return 1;  /* library loaded successfully */
+}
+
+static int lj_cf_package_loader_croot(lua_State *L)
+{
+  const char *filename;
+  const char *name = luaL_checkstring(L, 1);
+  const char *p = strchr(name, '.');
+  int st;
+  if (p == NULL) return 0;  /* is root */
+  lua_pushlstring(L, name, (size_t)(p - name));
+  filename = findfile(L, lua_tostring(L, -1), "cpath");
+  if (filename == NULL) return 1;  /* root not found */
+  if ((st = ll_loadfunc(L, filename, name, 0)) != 0) {
+    if (st != PACKAGE_ERR_FUNC) loaderror(L, filename);  /* real error */
+    lua_pushfstring(L, "\n\tno module " LUA_QS " in file " LUA_QS,
+		    name, filename);
+    return 1;  /* function not found */
+  }
+  return 1;
+}
+
+static int lj_cf_package_loader_preload(lua_State *L)
+{
+  const char *name = luaL_checkstring(L, 1);
+  lua_getfield(L, LUA_ENVIRONINDEX, "preload");
+  if (!lua_istable(L, -1))
+    luaL_error(L, LUA_QL("package.preload") " must be a table");
+  lua_getfield(L, -1, name);
+  if (lua_isnil(L, -1)) {  /* Not found? */
+    const char *bcname = mksymname(L, name, SYMPREFIX_BC);
+    const char *bcdata = ll_bcsym(NULL, bcname);
+    if (bcdata == NULL || luaL_loadbuffer(L, bcdata, ~(size_t)0, name) != 0)
+      lua_pushfstring(L, "\n\tno field package.preload['%s']", name);
+  }
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static const int sentinel_ = 0;
+#define sentinel	((void *)&sentinel_)
+
+static int lj_cf_package_require(lua_State *L)
+{
+  const char *name = luaL_checkstring(L, 1);
+  int i;
+  lua_settop(L, 1);  /* _LOADED table will be at index 2 */
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, 2, name);
+  if (lua_toboolean(L, -1)) {  /* is it there? */
+    if (lua_touserdata(L, -1) == sentinel)  /* check loops */
+      luaL_error(L, "loop or previous error loading module " LUA_QS, name);
+    return 1;  /* package is already loaded */
+  }
+  /* else must load it; iterate over available loaders */
+  lua_getfield(L, LUA_ENVIRONINDEX, "loaders");
+  if (!lua_istable(L, -1))
+    luaL_error(L, LUA_QL("package.loaders") " must be a table");
+  lua_pushliteral(L, "");  /* error message accumulator */
+  for (i = 1; ; i++) {
+    lua_rawgeti(L, -2, i);  /* get a loader */
+    if (lua_isnil(L, -1))
+      luaL_error(L, "module " LUA_QS " not found:%s",
+		 name, lua_tostring(L, -2));
+    lua_pushstring(L, name);
+    lua_call(L, 1, 1);  /* call it */
+    if (lua_isfunction(L, -1))  /* did it find module? */
+      break;  /* module loaded successfully */
+    else if (lua_isstring(L, -1))  /* loader returned error message? */
+      lua_concat(L, 2);  /* accumulate it */
+    else
+      lua_pop(L, 1);
+  }
+  lua_pushlightuserdata(L, sentinel);
+  lua_setfield(L, 2, name);  /* _LOADED[name] = sentinel */
+  lua_pushstring(L, name);  /* pass name as argument to module */
+  lua_call(L, 1, 1);  /* run loaded module */
+  if (!lua_isnil(L, -1))  /* non-nil return? */
+    lua_setfield(L, 2, name);  /* _LOADED[name] = returned value */
+  lua_getfield(L, 2, name);
+  if (lua_touserdata(L, -1) == sentinel) {   /* module did not set a value? */
+    lua_pushboolean(L, 1);  /* use true as result */
+    lua_pushvalue(L, -1);  /* extra copy to be returned */
+    lua_setfield(L, 2, name);  /* _LOADED[name] = true */
+  }
+  lj_lib_checkfpu(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void setfenv(lua_State *L)
+{
+  lua_Debug ar;
+  if (lua_getstack(L, 1, &ar) == 0 ||
+      lua_getinfo(L, "f", &ar) == 0 ||  /* get calling function */
+      lua_iscfunction(L, -1))
+    luaL_error(L, LUA_QL("module") " not called from a Lua function");
+  lua_pushvalue(L, -2);
+  lua_setfenv(L, -2);
+  lua_pop(L, 1);
+}
+
+static void dooptions(lua_State *L, int n)
+{
+  int i;
+  for (i = 2; i <= n; i++) {
+    lua_pushvalue(L, i);  /* get option (a function) */
+    lua_pushvalue(L, -2);  /* module */
+    lua_call(L, 1, 0);
+  }
+}
+
+static void modinit(lua_State *L, const char *modname)
+{
+  const char *dot;
+  lua_pushvalue(L, -1);
+  lua_setfield(L, -2, "_M");  /* module._M = module */
+  lua_pushstring(L, modname);
+  lua_setfield(L, -2, "_NAME");
+  dot = strrchr(modname, '.');  /* look for last dot in module name */
+  if (dot == NULL) dot = modname; else dot++;
+  /* set _PACKAGE as package name (full module name minus last part) */
+  lua_pushlstring(L, modname, (size_t)(dot - modname));
+  lua_setfield(L, -2, "_PACKAGE");
+}
+
+static int lj_cf_package_module(lua_State *L)
+{
+  const char *modname = luaL_checkstring(L, 1);
+  int loaded = lua_gettop(L) + 1;  /* index of _LOADED table */
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, loaded, modname);  /* get _LOADED[modname] */
+  if (!lua_istable(L, -1)) {  /* not found? */
+    lua_pop(L, 1);  /* remove previous result */
+    /* try global variable (and create one if it does not exist) */
+    if (luaL_findtable(L, LUA_GLOBALSINDEX, modname, 1) != NULL)
+      lj_err_callerv(L, LJ_ERR_BADMODN, modname);
+    lua_pushvalue(L, -1);
+    lua_setfield(L, loaded, modname);  /* _LOADED[modname] = new table */
+  }
+  /* check whether table already has a _NAME field */
+  lua_getfield(L, -1, "_NAME");
+  if (!lua_isnil(L, -1)) {  /* is table an initialized module? */
+    lua_pop(L, 1);
+  } else {  /* no; initialize it */
+    lua_pop(L, 1);
+    modinit(L, modname);
+  }
+  lua_pushvalue(L, -1);
+  setfenv(L);
+  dooptions(L, loaded - 1);
+  return 0;
+}
+
+static int lj_cf_package_seeall(lua_State *L)
+{
+  luaL_checktype(L, 1, LUA_TTABLE);
+  if (!lua_getmetatable(L, 1)) {
+    lua_createtable(L, 0, 1); /* create new metatable */
+    lua_pushvalue(L, -1);
+    lua_setmetatable(L, 1);
+  }
+  lua_pushvalue(L, LUA_GLOBALSINDEX);
+  lua_setfield(L, -2, "__index");  /* mt.__index = _G */
+  return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#define AUXMARK		"\1"
+
+static void setpath(lua_State *L, const char *fieldname, const char *envname,
+		    const char *def, int noenv)
+{
+#if LJ_TARGET_CONSOLE
+  const char *path = NULL;
+  UNUSED(envname);
+#else
+  const char *path = getenv(envname);
+#endif
+  if (path == NULL || noenv) {
+    lua_pushstring(L, def);
+  } else {
+    path = luaL_gsub(L, path, LUA_PATHSEP LUA_PATHSEP,
+			      LUA_PATHSEP AUXMARK LUA_PATHSEP);
+    luaL_gsub(L, path, AUXMARK, def);
+    lua_remove(L, -2);
+  }
+  setprogdir(L);
+  lua_setfield(L, -2, fieldname);
+}
+
+static const luaL_Reg package_lib[] = {
+  { "loadlib",	lj_cf_package_loadlib },
+  { "searchpath",  lj_cf_package_searchpath },
+  { "seeall",	lj_cf_package_seeall },
+  { NULL, NULL }
+};
+
+static const luaL_Reg package_global[] = {
+  { "module",	lj_cf_package_module },
+  { "require",	lj_cf_package_require },
+  { NULL, NULL }
+};
+
+static const lua_CFunction package_loaders[] =
+{
+  lj_cf_package_loader_preload,
+  lj_cf_package_loader_lua,
+  lj_cf_package_loader_c,
+  lj_cf_package_loader_croot,
+  NULL
+};
+
+LUALIB_API int luaopen_package(lua_State *L)
+{
+  int i;
+  int noenv;
+  luaL_newmetatable(L, "_LOADLIB");
+  lj_lib_pushcf(L, lj_cf_package_unloadlib, 1);
+  lua_setfield(L, -2, "__gc");
+  luaL_register(L, LUA_LOADLIBNAME, package_lib);
+  lua_pushvalue(L, -1);
+  lua_replace(L, LUA_ENVIRONINDEX);
+  lua_createtable(L, sizeof(package_loaders)/sizeof(package_loaders[0])-1, 0);
+  for (i = 0; package_loaders[i] != NULL; i++) {
+    lj_lib_pushcf(L, package_loaders[i], 1);
+    lua_rawseti(L, -2, i+1);
+  }
+  lua_setfield(L, -2, "loaders");
+  lua_getfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
+  noenv = lua_toboolean(L, -1);
+  lua_pop(L, 1);
+  setpath(L, "path", LUA_PATH, LUA_PATH_DEFAULT, noenv);
+  setpath(L, "cpath", LUA_CPATH, LUA_CPATH_DEFAULT, noenv);
+  lua_pushliteral(L, LUA_PATH_CONFIG);
+  lua_setfield(L, -2, "config");
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
+  lua_setfield(L, -2, "loaded");
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_PRELOAD", 4);
+  lua_setfield(L, -2, "preload");
+  lua_pushvalue(L, LUA_GLOBALSINDEX);
+  luaL_register(L, NULL, package_global);
+  lua_pop(L, 1);
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_string.c b/lib/luajit/src/lib_string.c
new file mode 100644
index 00000000..9ec6d0c3
--- /dev/null
+++ b/lib/luajit/src/lib_string.c
@@ -0,0 +1,940 @@
+/*
+** String library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+
+#define lib_string_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_ff.h"
+#include "lj_bcdump.h"
+#include "lj_char.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_string
+
+LJLIB_ASM(string_len)		LJLIB_REC(.)
+{
+  lj_lib_checkstr(L, 1);
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(string_byte)		LJLIB_REC(string_range 0)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  int32_t len = (int32_t)s->len;
+  int32_t start = lj_lib_optint(L, 2, 1);
+  int32_t stop = lj_lib_optint(L, 3, start);
+  int32_t n, i;
+  const unsigned char *p;
+  if (stop < 0) stop += len+1;
+  if (start < 0) start += len+1;
+  if (start <= 0) start = 1;
+  if (stop > len) stop = len;
+  if (start > stop) return FFH_RES(0);  /* Empty interval: return no results. */
+  start--;
+  n = stop - start;
+  if ((uint32_t)n > LUAI_MAXCSTACK)
+    lj_err_caller(L, LJ_ERR_STRSLC);
+  lj_state_checkstack(L, (MSize)n);
+  p = (const unsigned char *)strdata(s) + start;
+  for (i = 0; i < n; i++)
+    setintV(L->base + i-1, p[i]);
+  return FFH_RES(n);
+}
+
+LJLIB_ASM(string_char)
+{
+  int i, nargs = (int)(L->top - L->base);
+  char *buf = lj_str_needbuf(L, &G(L)->tmpbuf, (MSize)nargs);
+  for (i = 1; i <= nargs; i++) {
+    int32_t k = lj_lib_checkint(L, i);
+    if (!checku8(k))
+      lj_err_arg(L, i, LJ_ERR_BADVAL);
+    buf[i-1] = (char)k;
+  }
+  setstrV(L, L->base-1, lj_str_new(L, buf, (size_t)nargs));
+  return FFH_RES(1);
+}
+
+LJLIB_ASM(string_sub)		LJLIB_REC(string_range 1)
+{
+  lj_lib_checkstr(L, 1);
+  lj_lib_checkint(L, 2);
+  setintV(L->base+2, lj_lib_optint(L, 3, -1));
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(string_rep)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  int32_t k = lj_lib_checkint(L, 2);
+  GCstr *sep = lj_lib_optstr(L, 3);
+  int32_t len = (int32_t)s->len;
+  global_State *g = G(L);
+  int64_t tlen;
+  const char *src;
+  char *buf;
+  if (k <= 0) {
+  empty:
+    setstrV(L, L->base-1, &g->strempty);
+    return FFH_RES(1);
+  }
+  if (sep) {
+    tlen = (int64_t)len + sep->len;
+    if (tlen > LJ_MAX_STR)
+      lj_err_caller(L, LJ_ERR_STROV);
+    tlen *= k;
+    if (tlen > LJ_MAX_STR)
+      lj_err_caller(L, LJ_ERR_STROV);
+  } else {
+    tlen = (int64_t)k * len;
+    if (tlen > LJ_MAX_STR)
+      lj_err_caller(L, LJ_ERR_STROV);
+  }
+  if (tlen == 0) goto empty;
+  buf = lj_str_needbuf(L, &g->tmpbuf, (MSize)tlen);
+  src = strdata(s);
+  if (sep) {
+    tlen -= sep->len;  /* Ignore trailing separator. */
+    if (k > 1) {  /* Paste one string and one separator. */
+      int32_t i;
+      i = 0; while (i < len) *buf++ = src[i++];
+      src = strdata(sep); len = sep->len;
+      i = 0; while (i < len) *buf++ = src[i++];
+      src = g->tmpbuf.buf; len += s->len; k--;  /* Now copy that k-1 times. */
+    }
+  }
+  do {
+    int32_t i = 0;
+    do { *buf++ = src[i++]; } while (i < len);
+  } while (--k > 0);
+  setstrV(L, L->base-1, lj_str_new(L, g->tmpbuf.buf, (size_t)tlen));
+  return FFH_RES(1);
+}
+
+LJLIB_ASM(string_reverse)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  lj_str_needbuf(L, &G(L)->tmpbuf, s->len);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(string_lower)
+LJLIB_ASM_(string_upper)
+
+/* ------------------------------------------------------------------------ */
+
+static int writer_buf(lua_State *L, const void *p, size_t size, void *b)
+{
+  luaL_addlstring((luaL_Buffer *)b, (const char *)p, size);
+  UNUSED(L);
+  return 0;
+}
+
+LJLIB_CF(string_dump)
+{
+  GCfunc *fn = lj_lib_checkfunc(L, 1);
+  int strip = L->base+1 < L->top && tvistruecond(L->base+1);
+  luaL_Buffer b;
+  L->top = L->base+1;
+  luaL_buffinit(L, &b);
+  if (!isluafunc(fn) || lj_bcwrite(L, funcproto(fn), writer_buf, &b, strip))
+    lj_err_caller(L, LJ_ERR_STRDUMP);
+  luaL_pushresult(&b);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* macro to `unsign' a character */
+#define uchar(c)        ((unsigned char)(c))
+
+#define CAP_UNFINISHED	(-1)
+#define CAP_POSITION	(-2)
+
+typedef struct MatchState {
+  const char *src_init;  /* init of source string */
+  const char *src_end;  /* end (`\0') of source string */
+  lua_State *L;
+  int level;  /* total number of captures (finished or unfinished) */
+  int depth;
+  struct {
+    const char *init;
+    ptrdiff_t len;
+  } capture[LUA_MAXCAPTURES];
+} MatchState;
+
+#define L_ESC		'%'
+#define SPECIALS	"^$*+?.([%-"
+
+static int check_capture(MatchState *ms, int l)
+{
+  l -= '1';
+  if (l < 0 || l >= ms->level || ms->capture[l].len == CAP_UNFINISHED)
+    lj_err_caller(ms->L, LJ_ERR_STRCAPI);
+  return l;
+}
+
+static int capture_to_close(MatchState *ms)
+{
+  int level = ms->level;
+  for (level--; level>=0; level--)
+    if (ms->capture[level].len == CAP_UNFINISHED) return level;
+  lj_err_caller(ms->L, LJ_ERR_STRPATC);
+  return 0;  /* unreachable */
+}
+
+static const char *classend(MatchState *ms, const char *p)
+{
+  switch (*p++) {
+  case L_ESC:
+    if (*p == '\0')
+      lj_err_caller(ms->L, LJ_ERR_STRPATE);
+    return p+1;
+  case '[':
+    if (*p == '^') p++;
+    do {  /* look for a `]' */
+      if (*p == '\0')
+	lj_err_caller(ms->L, LJ_ERR_STRPATM);
+      if (*(p++) == L_ESC && *p != '\0')
+	p++;  /* skip escapes (e.g. `%]') */
+    } while (*p != ']');
+    return p+1;
+  default:
+    return p;
+  }
+}
+
+static const unsigned char match_class_map[32] = {
+  0,LJ_CHAR_ALPHA,0,LJ_CHAR_CNTRL,LJ_CHAR_DIGIT,0,0,LJ_CHAR_GRAPH,0,0,0,0,
+  LJ_CHAR_LOWER,0,0,0,LJ_CHAR_PUNCT,0,0,LJ_CHAR_SPACE,0,
+  LJ_CHAR_UPPER,0,LJ_CHAR_ALNUM,LJ_CHAR_XDIGIT,0,0,0,0,0,0,0
+};
+
+static int match_class(int c, int cl)
+{
+  if ((cl & 0xc0) == 0x40) {
+    int t = match_class_map[(cl&0x1f)];
+    if (t) {
+      t = lj_char_isa(c, t);
+      return (cl & 0x20) ? t : !t;
+    }
+    if (cl == 'z') return c == 0;
+    if (cl == 'Z') return c != 0;
+  }
+  return (cl == c);
+}
+
+static int matchbracketclass(int c, const char *p, const char *ec)
+{
+  int sig = 1;
+  if (*(p+1) == '^') {
+    sig = 0;
+    p++;  /* skip the `^' */
+  }
+  while (++p < ec) {
+    if (*p == L_ESC) {
+      p++;
+      if (match_class(c, uchar(*p)))
+	return sig;
+    }
+    else if ((*(p+1) == '-') && (p+2 < ec)) {
+      p+=2;
+      if (uchar(*(p-2)) <= c && c <= uchar(*p))
+	return sig;
+    }
+    else if (uchar(*p) == c) return sig;
+  }
+  return !sig;
+}
+
+static int singlematch(int c, const char *p, const char *ep)
+{
+  switch (*p) {
+  case '.': return 1;  /* matches any char */
+  case L_ESC: return match_class(c, uchar(*(p+1)));
+  case '[': return matchbracketclass(c, p, ep-1);
+  default:  return (uchar(*p) == c);
+  }
+}
+
+static const char *match(MatchState *ms, const char *s, const char *p);
+
+static const char *matchbalance(MatchState *ms, const char *s, const char *p)
+{
+  if (*p == 0 || *(p+1) == 0)
+    lj_err_caller(ms->L, LJ_ERR_STRPATU);
+  if (*s != *p) {
+    return NULL;
+  } else {
+    int b = *p;
+    int e = *(p+1);
+    int cont = 1;
+    while (++s < ms->src_end) {
+      if (*s == e) {
+	if (--cont == 0) return s+1;
+      } else if (*s == b) {
+	cont++;
+      }
+    }
+  }
+  return NULL;  /* string ends out of balance */
+}
+
+static const char *max_expand(MatchState *ms, const char *s,
+			      const char *p, const char *ep)
+{
+  ptrdiff_t i = 0;  /* counts maximum expand for item */
+  while ((s+i)<ms->src_end && singlematch(uchar(*(s+i)), p, ep))
+    i++;
+  /* keeps trying to match with the maximum repetitions */
+  while (i>=0) {
+    const char *res = match(ms, (s+i), ep+1);
+    if (res) return res;
+    i--;  /* else didn't match; reduce 1 repetition to try again */
+  }
+  return NULL;
+}
+
+static const char *min_expand(MatchState *ms, const char *s,
+			      const char *p, const char *ep)
+{
+  for (;;) {
+    const char *res = match(ms, s, ep+1);
+    if (res != NULL)
+      return res;
+    else if (s<ms->src_end && singlematch(uchar(*s), p, ep))
+      s++;  /* try with one more repetition */
+    else
+      return NULL;
+  }
+}
+
+static const char *start_capture(MatchState *ms, const char *s,
+				 const char *p, int what)
+{
+  const char *res;
+  int level = ms->level;
+  if (level >= LUA_MAXCAPTURES) lj_err_caller(ms->L, LJ_ERR_STRCAPN);
+  ms->capture[level].init = s;
+  ms->capture[level].len = what;
+  ms->level = level+1;
+  if ((res=match(ms, s, p)) == NULL)  /* match failed? */
+    ms->level--;  /* undo capture */
+  return res;
+}
+
+static const char *end_capture(MatchState *ms, const char *s,
+			       const char *p)
+{
+  int l = capture_to_close(ms);
+  const char *res;
+  ms->capture[l].len = s - ms->capture[l].init;  /* close capture */
+  if ((res = match(ms, s, p)) == NULL)  /* match failed? */
+    ms->capture[l].len = CAP_UNFINISHED;  /* undo capture */
+  return res;
+}
+
+static const char *match_capture(MatchState *ms, const char *s, int l)
+{
+  size_t len;
+  l = check_capture(ms, l);
+  len = (size_t)ms->capture[l].len;
+  if ((size_t)(ms->src_end-s) >= len &&
+      memcmp(ms->capture[l].init, s, len) == 0)
+    return s+len;
+  else
+    return NULL;
+}
+
+static const char *match(MatchState *ms, const char *s, const char *p)
+{
+  if (++ms->depth > LJ_MAX_XLEVEL)
+    lj_err_caller(ms->L, LJ_ERR_STRPATX);
+  init: /* using goto's to optimize tail recursion */
+  switch (*p) {
+  case '(':  /* start capture */
+    if (*(p+1) == ')')  /* position capture? */
+      s = start_capture(ms, s, p+2, CAP_POSITION);
+    else
+      s = start_capture(ms, s, p+1, CAP_UNFINISHED);
+    break;
+  case ')':  /* end capture */
+    s = end_capture(ms, s, p+1);
+    break;
+  case L_ESC:
+    switch (*(p+1)) {
+    case 'b':  /* balanced string? */
+      s = matchbalance(ms, s, p+2);
+      if (s == NULL) break;
+      p+=4;
+      goto init;  /* else s = match(ms, s, p+4); */
+    case 'f': {  /* frontier? */
+      const char *ep; char previous;
+      p += 2;
+      if (*p != '[')
+	lj_err_caller(ms->L, LJ_ERR_STRPATB);
+      ep = classend(ms, p);  /* points to what is next */
+      previous = (s == ms->src_init) ? '\0' : *(s-1);
+      if (matchbracketclass(uchar(previous), p, ep-1) ||
+	 !matchbracketclass(uchar(*s), p, ep-1)) { s = NULL; break; }
+      p=ep;
+      goto init;  /* else s = match(ms, s, ep); */
+      }
+    default:
+      if (lj_char_isdigit(uchar(*(p+1)))) {  /* capture results (%0-%9)? */
+	s = match_capture(ms, s, uchar(*(p+1)));
+	if (s == NULL) break;
+	p+=2;
+	goto init;  /* else s = match(ms, s, p+2) */
+      }
+      goto dflt;  /* case default */
+    }
+    break;
+  case '\0':  /* end of pattern */
+    break;  /* match succeeded */
+  case '$':
+    /* is the `$' the last char in pattern? */
+    if (*(p+1) != '\0') goto dflt;
+    if (s != ms->src_end) s = NULL;  /* check end of string */
+    break;
+  default: dflt: {  /* it is a pattern item */
+    const char *ep = classend(ms, p);  /* points to what is next */
+    int m = s<ms->src_end && singlematch(uchar(*s), p, ep);
+    switch (*ep) {
+    case '?': {  /* optional */
+      const char *res;
+      if (m && ((res=match(ms, s+1, ep+1)) != NULL)) {
+	s = res;
+	break;
+      }
+      p=ep+1;
+      goto init;  /* else s = match(ms, s, ep+1); */
+      }
+    case '*':  /* 0 or more repetitions */
+      s = max_expand(ms, s, p, ep);
+      break;
+    case '+':  /* 1 or more repetitions */
+      s = (m ? max_expand(ms, s+1, p, ep) : NULL);
+      break;
+    case '-':  /* 0 or more repetitions (minimum) */
+      s = min_expand(ms, s, p, ep);
+      break;
+    default:
+      if (m) { s++; p=ep; goto init; }  /* else s = match(ms, s+1, ep); */
+      s = NULL;
+      break;
+    }
+    break;
+    }
+  }
+  ms->depth--;
+  return s;
+}
+
+static const char *lmemfind(const char *s1, size_t l1,
+			    const char *s2, size_t l2)
+{
+  if (l2 == 0) {
+    return s1;  /* empty strings are everywhere */
+  } else if (l2 > l1) {
+    return NULL;  /* avoids a negative `l1' */
+  } else {
+    const char *init;  /* to search for a `*s2' inside `s1' */
+    l2--;  /* 1st char will be checked by `memchr' */
+    l1 = l1-l2;  /* `s2' cannot be found after that */
+    while (l1 > 0 && (init = (const char *)memchr(s1, *s2, l1)) != NULL) {
+      init++;   /* 1st char is already checked */
+      if (memcmp(init, s2+1, l2) == 0) {
+	return init-1;
+      } else {  /* correct `l1' and `s1' to try again */
+	l1 -= (size_t)(init-s1);
+	s1 = init;
+      }
+    }
+    return NULL;  /* not found */
+  }
+}
+
+static void push_onecapture(MatchState *ms, int i, const char *s, const char *e)
+{
+  if (i >= ms->level) {
+    if (i == 0)  /* ms->level == 0, too */
+      lua_pushlstring(ms->L, s, (size_t)(e - s));  /* add whole match */
+    else
+      lj_err_caller(ms->L, LJ_ERR_STRCAPI);
+  } else {
+    ptrdiff_t l = ms->capture[i].len;
+    if (l == CAP_UNFINISHED) lj_err_caller(ms->L, LJ_ERR_STRCAPU);
+    if (l == CAP_POSITION)
+      lua_pushinteger(ms->L, ms->capture[i].init - ms->src_init + 1);
+    else
+      lua_pushlstring(ms->L, ms->capture[i].init, (size_t)l);
+  }
+}
+
+static int push_captures(MatchState *ms, const char *s, const char *e)
+{
+  int i;
+  int nlevels = (ms->level == 0 && s) ? 1 : ms->level;
+  luaL_checkstack(ms->L, nlevels, "too many captures");
+  for (i = 0; i < nlevels; i++)
+    push_onecapture(ms, i, s, e);
+  return nlevels;  /* number of strings pushed */
+}
+
+static ptrdiff_t posrelat(ptrdiff_t pos, size_t len)
+{
+  /* relative string position: negative means back from end */
+  if (pos < 0) pos += (ptrdiff_t)len + 1;
+  return (pos >= 0) ? pos : 0;
+}
+
+static int str_find_aux(lua_State *L, int find)
+{
+  size_t l1, l2;
+  const char *s = luaL_checklstring(L, 1, &l1);
+  const char *p = luaL_checklstring(L, 2, &l2);
+  ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1;
+  if (init < 0) {
+    init = 0;
+  } else if ((size_t)(init) > l1) {
+#if LJ_52
+    setnilV(L->top-1);
+    return 1;
+#else
+    init = (ptrdiff_t)l1;
+#endif
+  }
+  if (find && (lua_toboolean(L, 4) ||  /* explicit request? */
+      strpbrk(p, SPECIALS) == NULL)) {  /* or no special characters? */
+    /* do a plain search */
+    const char *s2 = lmemfind(s+init, l1-(size_t)init, p, l2);
+    if (s2) {
+      lua_pushinteger(L, s2-s+1);
+      lua_pushinteger(L, s2-s+(ptrdiff_t)l2);
+      return 2;
+    }
+  } else {
+    MatchState ms;
+    int anchor = (*p == '^') ? (p++, 1) : 0;
+    const char *s1=s+init;
+    ms.L = L;
+    ms.src_init = s;
+    ms.src_end = s+l1;
+    do {
+      const char *res;
+      ms.level = ms.depth = 0;
+      if ((res=match(&ms, s1, p)) != NULL) {
+	if (find) {
+	  lua_pushinteger(L, s1-s+1);  /* start */
+	  lua_pushinteger(L, res-s);   /* end */
+	  return push_captures(&ms, NULL, 0) + 2;
+	} else {
+	  return push_captures(&ms, s1, res);
+	}
+      }
+    } while (s1++ < ms.src_end && !anchor);
+  }
+  lua_pushnil(L);  /* not found */
+  return 1;
+}
+
+LJLIB_CF(string_find)
+{
+  return str_find_aux(L, 1);
+}
+
+LJLIB_CF(string_match)
+{
+  return str_find_aux(L, 0);
+}
+
+LJLIB_NOREG LJLIB_CF(string_gmatch_aux)
+{
+  const char *p = strVdata(lj_lib_upvalue(L, 2));
+  GCstr *str = strV(lj_lib_upvalue(L, 1));
+  const char *s = strdata(str);
+  TValue *tvpos = lj_lib_upvalue(L, 3);
+  const char *src = s + tvpos->u32.lo;
+  MatchState ms;
+  ms.L = L;
+  ms.src_init = s;
+  ms.src_end = s + str->len;
+  for (; src <= ms.src_end; src++) {
+    const char *e;
+    ms.level = ms.depth = 0;
+    if ((e = match(&ms, src, p)) != NULL) {
+      int32_t pos = (int32_t)(e - s);
+      if (e == src) pos++;  /* Ensure progress for empty match. */
+      tvpos->u32.lo = (uint32_t)pos;
+      return push_captures(&ms, src, e);
+    }
+  }
+  return 0;  /* not found */
+}
+
+LJLIB_CF(string_gmatch)
+{
+  lj_lib_checkstr(L, 1);
+  lj_lib_checkstr(L, 2);
+  L->top = L->base+3;
+  (L->top-1)->u64 = 0;
+  lj_lib_pushcc(L, lj_cf_string_gmatch_aux, FF_string_gmatch_aux, 3);
+  return 1;
+}
+
+static void add_s(MatchState *ms, luaL_Buffer *b, const char *s, const char *e)
+{
+  size_t l, i;
+  const char *news = lua_tolstring(ms->L, 3, &l);
+  for (i = 0; i < l; i++) {
+    if (news[i] != L_ESC) {
+      luaL_addchar(b, news[i]);
+    } else {
+      i++;  /* skip ESC */
+      if (!lj_char_isdigit(uchar(news[i]))) {
+	luaL_addchar(b, news[i]);
+      } else if (news[i] == '0') {
+	luaL_addlstring(b, s, (size_t)(e - s));
+      } else {
+	push_onecapture(ms, news[i] - '1', s, e);
+	luaL_addvalue(b);  /* add capture to accumulated result */
+      }
+    }
+  }
+}
+
+static void add_value(MatchState *ms, luaL_Buffer *b,
+		      const char *s, const char *e)
+{
+  lua_State *L = ms->L;
+  switch (lua_type(L, 3)) {
+    case LUA_TNUMBER:
+    case LUA_TSTRING: {
+      add_s(ms, b, s, e);
+      return;
+    }
+    case LUA_TFUNCTION: {
+      int n;
+      lua_pushvalue(L, 3);
+      n = push_captures(ms, s, e);
+      lua_call(L, n, 1);
+      break;
+    }
+    case LUA_TTABLE: {
+      push_onecapture(ms, 0, s, e);
+      lua_gettable(L, 3);
+      break;
+    }
+  }
+  if (!lua_toboolean(L, -1)) {  /* nil or false? */
+    lua_pop(L, 1);
+    lua_pushlstring(L, s, (size_t)(e - s));  /* keep original text */
+  } else if (!lua_isstring(L, -1)) {
+    lj_err_callerv(L, LJ_ERR_STRGSRV, luaL_typename(L, -1));
+  }
+  luaL_addvalue(b);  /* add result to accumulator */
+}
+
+LJLIB_CF(string_gsub)
+{
+  size_t srcl;
+  const char *src = luaL_checklstring(L, 1, &srcl);
+  const char *p = luaL_checkstring(L, 2);
+  int  tr = lua_type(L, 3);
+  int max_s = luaL_optint(L, 4, (int)(srcl+1));
+  int anchor = (*p == '^') ? (p++, 1) : 0;
+  int n = 0;
+  MatchState ms;
+  luaL_Buffer b;
+  if (!(tr == LUA_TNUMBER || tr == LUA_TSTRING ||
+	tr == LUA_TFUNCTION || tr == LUA_TTABLE))
+    lj_err_arg(L, 3, LJ_ERR_NOSFT);
+  luaL_buffinit(L, &b);
+  ms.L = L;
+  ms.src_init = src;
+  ms.src_end = src+srcl;
+  while (n < max_s) {
+    const char *e;
+    ms.level = ms.depth = 0;
+    e = match(&ms, src, p);
+    if (e) {
+      n++;
+      add_value(&ms, &b, src, e);
+    }
+    if (e && e>src) /* non empty match? */
+      src = e;  /* skip it */
+    else if (src < ms.src_end)
+      luaL_addchar(&b, *src++);
+    else
+      break;
+    if (anchor)
+      break;
+  }
+  luaL_addlstring(&b, src, (size_t)(ms.src_end-src));
+  luaL_pushresult(&b);
+  lua_pushinteger(L, n);  /* number of substitutions */
+  return 2;
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* maximum size of each formatted item (> len(format('%99.99f', -1e308))) */
+#define MAX_FMTITEM	512
+/* valid flags in a format specification */
+#define FMT_FLAGS	"-+ #0"
+/*
+** maximum size of each format specification (such as '%-099.99d')
+** (+10 accounts for %99.99x plus margin of error)
+*/
+#define MAX_FMTSPEC	(sizeof(FMT_FLAGS) + sizeof(LUA_INTFRMLEN) + 10)
+
+static void addquoted(lua_State *L, luaL_Buffer *b, int arg)
+{
+  GCstr *str = lj_lib_checkstr(L, arg);
+  int32_t len = (int32_t)str->len;
+  const char *s = strdata(str);
+  luaL_addchar(b, '"');
+  while (len--) {
+    uint32_t c = uchar(*s);
+    if (c == '"' || c == '\\' || c == '\n') {
+      luaL_addchar(b, '\\');
+    } else if (lj_char_iscntrl(c)) {  /* This can only be 0-31 or 127. */
+      uint32_t d;
+      luaL_addchar(b, '\\');
+      if (c >= 100 || lj_char_isdigit(uchar(s[1]))) {
+	luaL_addchar(b, '0'+(c >= 100)); if (c >= 100) c -= 100;
+	goto tens;
+      } else if (c >= 10) {
+      tens:
+	d = (c * 205) >> 11; c -= d * 10; luaL_addchar(b, '0'+d);
+      }
+      c += '0';
+    }
+    luaL_addchar(b, c);
+    s++;
+  }
+  luaL_addchar(b, '"');
+}
+
+static const char *scanformat(lua_State *L, const char *strfrmt, char *form)
+{
+  const char *p = strfrmt;
+  while (*p != '\0' && strchr(FMT_FLAGS, *p) != NULL) p++;  /* skip flags */
+  if ((size_t)(p - strfrmt) >= sizeof(FMT_FLAGS))
+    lj_err_caller(L, LJ_ERR_STRFMTR);
+  if (lj_char_isdigit(uchar(*p))) p++;  /* skip width */
+  if (lj_char_isdigit(uchar(*p))) p++;  /* (2 digits at most) */
+  if (*p == '.') {
+    p++;
+    if (lj_char_isdigit(uchar(*p))) p++;  /* skip precision */
+    if (lj_char_isdigit(uchar(*p))) p++;  /* (2 digits at most) */
+  }
+  if (lj_char_isdigit(uchar(*p)))
+    lj_err_caller(L, LJ_ERR_STRFMTW);
+  *(form++) = '%';
+  strncpy(form, strfrmt, (size_t)(p - strfrmt + 1));
+  form += p - strfrmt + 1;
+  *form = '\0';
+  return p;
+}
+
+static void addintlen(char *form)
+{
+  size_t l = strlen(form);
+  char spec = form[l - 1];
+  strcpy(form + l - 1, LUA_INTFRMLEN);
+  form[l + sizeof(LUA_INTFRMLEN) - 2] = spec;
+  form[l + sizeof(LUA_INTFRMLEN) - 1] = '\0';
+}
+
+static unsigned LUA_INTFRM_T num2intfrm(lua_State *L, int arg)
+{
+  if (sizeof(LUA_INTFRM_T) == 4) {
+    return (LUA_INTFRM_T)lj_lib_checkbit(L, arg);
+  } else {
+    cTValue *o;
+    lj_lib_checknumber(L, arg);
+    o = L->base+arg-1;
+    if (tvisint(o))
+      return (LUA_INTFRM_T)intV(o);
+    else
+      return (LUA_INTFRM_T)numV(o);
+  }
+}
+
+static unsigned LUA_INTFRM_T num2uintfrm(lua_State *L, int arg)
+{
+  if (sizeof(LUA_INTFRM_T) == 4) {
+    return (unsigned LUA_INTFRM_T)lj_lib_checkbit(L, arg);
+  } else {
+    cTValue *o;
+    lj_lib_checknumber(L, arg);
+    o = L->base+arg-1;
+    if (tvisint(o))
+      return (unsigned LUA_INTFRM_T)intV(o);
+    else if ((int32_t)o->u32.hi < 0)
+      return (unsigned LUA_INTFRM_T)(LUA_INTFRM_T)numV(o);
+    else
+      return (unsigned LUA_INTFRM_T)numV(o);
+  }
+}
+
+static GCstr *meta_tostring(lua_State *L, int arg)
+{
+  TValue *o = L->base+arg-1;
+  cTValue *mo;
+  lua_assert(o < L->top);  /* Caller already checks for existence. */
+  if (LJ_LIKELY(tvisstr(o)))
+    return strV(o);
+  if (!tvisnil(mo = lj_meta_lookup(L, o, MM_tostring))) {
+    copyTV(L, L->top++, mo);
+    copyTV(L, L->top++, o);
+    lua_call(L, 1, 1);
+    L->top--;
+    if (tvisstr(L->top))
+      return strV(L->top);
+    o = L->base+arg-1;
+    copyTV(L, o, L->top);
+  }
+  if (tvisnumber(o)) {
+    return lj_str_fromnumber(L, o);
+  } else if (tvisnil(o)) {
+    return lj_str_newlit(L, "nil");
+  } else if (tvisfalse(o)) {
+    return lj_str_newlit(L, "false");
+  } else if (tvistrue(o)) {
+    return lj_str_newlit(L, "true");
+  } else {
+    if (tvisfunc(o) && isffunc(funcV(o)))
+      lj_str_pushf(L, "function: builtin#%d", funcV(o)->c.ffid);
+    else
+      lj_str_pushf(L, "%s: %p", lj_typename(o), lua_topointer(L, arg));
+    L->top--;
+    return strV(L->top);
+  }
+}
+
+LJLIB_CF(string_format)
+{
+  int arg = 1, top = (int)(L->top - L->base);
+  GCstr *fmt = lj_lib_checkstr(L, arg);
+  const char *strfrmt = strdata(fmt);
+  const char *strfrmt_end = strfrmt + fmt->len;
+  luaL_Buffer b;
+  luaL_buffinit(L, &b);
+  while (strfrmt < strfrmt_end) {
+    if (*strfrmt != L_ESC) {
+      luaL_addchar(&b, *strfrmt++);
+    } else if (*++strfrmt == L_ESC) {
+      luaL_addchar(&b, *strfrmt++);  /* %% */
+    } else { /* format item */
+      char form[MAX_FMTSPEC];  /* to store the format (`%...') */
+      char buff[MAX_FMTITEM];  /* to store the formatted item */
+      if (++arg > top)
+	luaL_argerror(L, arg, lj_obj_typename[0]);
+      strfrmt = scanformat(L, strfrmt, form);
+      switch (*strfrmt++) {
+      case 'c':
+	sprintf(buff, form, lj_lib_checkint(L, arg));
+	break;
+      case 'd':  case 'i':
+	addintlen(form);
+	sprintf(buff, form, num2intfrm(L, arg));
+	break;
+      case 'o':  case 'u':  case 'x':  case 'X':
+	addintlen(form);
+	sprintf(buff, form, num2uintfrm(L, arg));
+	break;
+      case 'e':  case 'E': case 'f': case 'g': case 'G': case 'a': case 'A': {
+	TValue tv;
+	tv.n = lj_lib_checknum(L, arg);
+	if (LJ_UNLIKELY((tv.u32.hi << 1) >= 0xffe00000)) {
+	  /* Canonicalize output of non-finite values. */
+	  char *p, nbuf[LJ_STR_NUMBUF];
+	  size_t len = lj_str_bufnum(nbuf, &tv);
+	  if (strfrmt[-1] < 'a') {
+	    nbuf[len-3] = nbuf[len-3] - 0x20;
+	    nbuf[len-2] = nbuf[len-2] - 0x20;
+	    nbuf[len-1] = nbuf[len-1] - 0x20;
+	  }
+	  nbuf[len] = '\0';
+	  for (p = form; *p < 'A' && *p != '.'; p++) ;
+	  *p++ = 's'; *p = '\0';
+	  sprintf(buff, form, nbuf);
+	  break;
+	}
+	sprintf(buff, form, (double)tv.n);
+	break;
+	}
+      case 'q':
+	addquoted(L, &b, arg);
+	continue;
+      case 'p':
+	lj_str_pushf(L, "%p", lua_topointer(L, arg));
+	luaL_addvalue(&b);
+	continue;
+      case 's': {
+	GCstr *str = meta_tostring(L, arg);
+	if (!strchr(form, '.') && str->len >= 100) {
+	  /* no precision and string is too long to be formatted;
+	     keep original string */
+	  setstrV(L, L->top++, str);
+	  luaL_addvalue(&b);
+	  continue;
+	}
+	sprintf(buff, form, strdata(str));
+	break;
+	}
+      default:
+	lj_err_callerv(L, LJ_ERR_STRFMTO, *(strfrmt -1));
+	break;
+      }
+      luaL_addlstring(&b, buff, strlen(buff));
+    }
+  }
+  luaL_pushresult(&b);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_string(lua_State *L)
+{
+  GCtab *mt;
+  global_State *g;
+  LJ_LIB_REG(L, LUA_STRLIBNAME, string);
+#if defined(LUA_COMPAT_GFIND) && !LJ_52
+  lua_getfield(L, -1, "gmatch");
+  lua_setfield(L, -2, "gfind");
+#endif
+  mt = lj_tab_new(L, 0, 1);
+  /* NOBARRIER: basemt is a GC root. */
+  g = G(L);
+  setgcref(basemt_it(g, LJ_TSTR), obj2gco(mt));
+  settabV(L, lj_tab_setstr(L, mt, mmname_str(g, MM_index)), tabV(L->top-1));
+  mt->nomm = (uint8_t)(~(1u<<MM_index));
+  return 1;
+}
+
diff --git a/lib/luajit/src/lib_table.c b/lib/luajit/src/lib_table.c
new file mode 100644
index 00000000..e0e8302f
--- /dev/null
+++ b/lib/luajit/src/lib_table.c
@@ -0,0 +1,300 @@
+/*
+** Table library.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_table_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_table
+
+LJLIB_CF(table_foreachi)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  GCfunc *func = lj_lib_checkfunc(L, 2);
+  MSize i, n = lj_tab_len(t);
+  for (i = 1; i <= n; i++) {
+    cTValue *val;
+    setfuncV(L, L->top, func);
+    setintV(L->top+1, i);
+    val = lj_tab_getint(t, (int32_t)i);
+    if (val) { copyTV(L, L->top+2, val); } else { setnilV(L->top+2); }
+    L->top += 3;
+    lua_call(L, 2, 1);
+    if (!tvisnil(L->top-1))
+      return 1;
+    L->top--;
+  }
+  return 0;
+}
+
+LJLIB_CF(table_foreach)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  GCfunc *func = lj_lib_checkfunc(L, 2);
+  L->top = L->base+3;
+  setnilV(L->top-1);
+  while (lj_tab_next(L, t, L->top-1)) {
+    copyTV(L, L->top+2, L->top);
+    copyTV(L, L->top+1, L->top-1);
+    setfuncV(L, L->top, func);
+    L->top += 3;
+    lua_call(L, 2, 1);
+    if (!tvisnil(L->top-1))
+      return 1;
+    L->top--;
+  }
+  return 0;
+}
+
+LJLIB_ASM(table_getn)		LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  return FFH_UNREACHABLE;
+}
+
+LJLIB_CF(table_maxn)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  TValue *array = tvref(t->array);
+  Node *node;
+  lua_Number m = 0;
+  ptrdiff_t i;
+  for (i = (ptrdiff_t)t->asize - 1; i >= 0; i--)
+    if (!tvisnil(&array[i])) {
+      m = (lua_Number)(int32_t)i;
+      break;
+    }
+  node = noderef(t->node);
+  for (i = (ptrdiff_t)t->hmask; i >= 0; i--)
+    if (!tvisnil(&node[i].val) && tvisnumber(&node[i].key)) {
+      lua_Number n = numberVnum(&node[i].key);
+      if (n > m) m = n;
+    }
+  setnumV(L->top-1, m);
+  return 1;
+}
+
+LJLIB_CF(table_insert)		LJLIB_REC(.)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t n, i = (int32_t)lj_tab_len(t) + 1;
+  int nargs = (int)((char *)L->top - (char *)L->base);
+  if (nargs != 2*sizeof(TValue)) {
+    if (nargs != 3*sizeof(TValue))
+      lj_err_caller(L, LJ_ERR_TABINS);
+    /* NOBARRIER: This just moves existing elements around. */
+    for (n = lj_lib_checkint(L, 2); i > n; i--) {
+      /* The set may invalidate the get pointer, so need to do it first! */
+      TValue *dst = lj_tab_setint(L, t, i);
+      cTValue *src = lj_tab_getint(t, i-1);
+      if (src) {
+	copyTV(L, dst, src);
+      } else {
+	setnilV(dst);
+      }
+    }
+    i = n;
+  }
+  {
+    TValue *dst = lj_tab_setint(L, t, i);
+    copyTV(L, dst, L->top-1);  /* Set new value. */
+    lj_gc_barriert(L, t, dst);
+  }
+  return 0;
+}
+
+LJLIB_CF(table_remove)		LJLIB_REC(.)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t e = (int32_t)lj_tab_len(t);
+  int32_t pos = lj_lib_optint(L, 2, e);
+  if (!(1 <= pos && pos <= e))  /* Nothing to remove? */
+    return 0;
+  lua_rawgeti(L, 1, pos);  /* Get previous value. */
+  /* NOBARRIER: This just moves existing elements around. */
+  for (; pos < e; pos++) {
+    cTValue *src = lj_tab_getint(t, pos+1);
+    TValue *dst = lj_tab_setint(L, t, pos);
+    if (src) {
+      copyTV(L, dst, src);
+    } else {
+      setnilV(dst);
+    }
+  }
+  setnilV(lj_tab_setint(L, t, e));  /* Remove (last) value. */
+  return 1;  /* Return previous value. */
+}
+
+LJLIB_CF(table_concat)
+{
+  luaL_Buffer b;
+  GCtab *t = lj_lib_checktab(L, 1);
+  GCstr *sep = lj_lib_optstr(L, 2);
+  MSize seplen = sep ? sep->len : 0;
+  int32_t i = lj_lib_optint(L, 3, 1);
+  int32_t e = (L->base+3 < L->top && !tvisnil(L->base+3)) ?
+	      lj_lib_checkint(L, 4) : (int32_t)lj_tab_len(t);
+  luaL_buffinit(L, &b);
+  if (i <= e) {
+    for (;;) {
+      cTValue *o;
+      lua_rawgeti(L, 1, i);
+      o = L->top-1;
+      if (!(tvisstr(o) || tvisnumber(o)))
+	lj_err_callerv(L, LJ_ERR_TABCAT, lj_typename(o), i);
+      luaL_addvalue(&b);
+      if (i++ == e) break;
+      if (seplen)
+	luaL_addlstring(&b, strdata(sep), seplen);
+    }
+  }
+  luaL_pushresult(&b);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void set2(lua_State *L, int i, int j)
+{
+  lua_rawseti(L, 1, i);
+  lua_rawseti(L, 1, j);
+}
+
+static int sort_comp(lua_State *L, int a, int b)
+{
+  if (!lua_isnil(L, 2)) {  /* function? */
+    int res;
+    lua_pushvalue(L, 2);
+    lua_pushvalue(L, a-1);  /* -1 to compensate function */
+    lua_pushvalue(L, b-2);  /* -2 to compensate function and `a' */
+    lua_call(L, 2, 1);
+    res = lua_toboolean(L, -1);
+    lua_pop(L, 1);
+    return res;
+  } else {  /* a < b? */
+    return lua_lessthan(L, a, b);
+  }
+}
+
+static void auxsort(lua_State *L, int l, int u)
+{
+  while (l < u) {  /* for tail recursion */
+    int i, j;
+    /* sort elements a[l], a[(l+u)/2] and a[u] */
+    lua_rawgeti(L, 1, l);
+    lua_rawgeti(L, 1, u);
+    if (sort_comp(L, -1, -2))  /* a[u] < a[l]? */
+      set2(L, l, u);  /* swap a[l] - a[u] */
+    else
+      lua_pop(L, 2);
+    if (u-l == 1) break;  /* only 2 elements */
+    i = (l+u)/2;
+    lua_rawgeti(L, 1, i);
+    lua_rawgeti(L, 1, l);
+    if (sort_comp(L, -2, -1)) {  /* a[i]<a[l]? */
+      set2(L, i, l);
+    } else {
+      lua_pop(L, 1);  /* remove a[l] */
+      lua_rawgeti(L, 1, u);
+      if (sort_comp(L, -1, -2))  /* a[u]<a[i]? */
+	set2(L, i, u);
+      else
+	lua_pop(L, 2);
+    }
+    if (u-l == 2) break;  /* only 3 elements */
+    lua_rawgeti(L, 1, i);  /* Pivot */
+    lua_pushvalue(L, -1);
+    lua_rawgeti(L, 1, u-1);
+    set2(L, i, u-1);
+    /* a[l] <= P == a[u-1] <= a[u], only need to sort from l+1 to u-2 */
+    i = l; j = u-1;
+    for (;;) {  /* invariant: a[l..i] <= P <= a[j..u] */
+      /* repeat ++i until a[i] >= P */
+      while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) {
+	if (i>=u) lj_err_caller(L, LJ_ERR_TABSORT);
+	lua_pop(L, 1);  /* remove a[i] */
+      }
+      /* repeat --j until a[j] <= P */
+      while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) {
+	if (j<=l) lj_err_caller(L, LJ_ERR_TABSORT);
+	lua_pop(L, 1);  /* remove a[j] */
+      }
+      if (j<i) {
+	lua_pop(L, 3);  /* pop pivot, a[i], a[j] */
+	break;
+      }
+      set2(L, i, j);
+    }
+    lua_rawgeti(L, 1, u-1);
+    lua_rawgeti(L, 1, i);
+    set2(L, u-1, i);  /* swap pivot (a[u-1]) with a[i] */
+    /* a[l..i-1] <= a[i] == P <= a[i+1..u] */
+    /* adjust so that smaller half is in [j..i] and larger one in [l..u] */
+    if (i-l < u-i) {
+      j=l; i=i-1; l=i+2;
+    } else {
+      j=i+1; i=u; u=j-2;
+    }
+    auxsort(L, j, i);  /* call recursively the smaller one */
+  }  /* repeat the routine for the larger one */
+}
+
+LJLIB_CF(table_sort)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t n = (int32_t)lj_tab_len(t);
+  lua_settop(L, 2);
+  if (!tvisnil(L->base+1))
+    lj_lib_checkfunc(L, 2);
+  auxsort(L, 1, n);
+  return 0;
+}
+
+#if LJ_52
+LJLIB_PUSH("n")
+LJLIB_CF(table_pack)
+{
+  TValue *array, *base = L->base;
+  MSize i, n = (uint32_t)(L->top - base);
+  GCtab *t = lj_tab_new(L, n ? n+1 : 0, 1);
+  /* NOBARRIER: The table is new (marked white). */
+  setintV(lj_tab_setstr(L, t, strV(lj_lib_upvalue(L, 1))), (int32_t)n);
+  for (array = tvref(t->array) + 1, i = 0; i < n; i++)
+    copyTV(L, &array[i], &base[i]);
+  settabV(L, base, t);
+  L->top = base+1;
+  lj_gc_check(L);
+  return 1;
+}
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_table(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_TABLIBNAME, table);
+#if LJ_52
+  lua_getglobal(L, "unpack");
+  lua_setfield(L, -2, "unpack");
+#endif
+  return 1;
+}
+
diff --git a/lib/luajit/src/lj.supp b/lib/luajit/src/lj.supp
new file mode 100644
index 00000000..411f2617
--- /dev/null
+++ b/lib/luajit/src/lj.supp
@@ -0,0 +1,26 @@
+# Valgrind suppression file for LuaJIT 2.0.
+{
+   Optimized string compare
+   Memcheck:Addr4
+   fun:lj_str_cmp
+}
+{
+   Optimized string compare
+   Memcheck:Addr1
+   fun:lj_str_cmp
+}
+{
+   Optimized string compare
+   Memcheck:Addr4
+   fun:lj_str_new
+}
+{
+   Optimized string compare
+   Memcheck:Addr1
+   fun:lj_str_new
+}
+{
+   Optimized string compare
+   Memcheck:Cond
+   fun:lj_str_new
+}
diff --git a/lib/luajit/src/lj_alloc.c b/lib/luajit/src/lj_alloc.c
new file mode 100644
index 00000000..f856a7a0
--- /dev/null
+++ b/lib/luajit/src/lj_alloc.c
@@ -0,0 +1,1390 @@
+/*
+** Bundled memory allocator.
+**
+** Beware: this is a HEAVILY CUSTOMIZED version of dlmalloc.
+** The original bears the following remark:
+**
+**   This is a version (aka dlmalloc) of malloc/free/realloc written by
+**   Doug Lea and released to the public domain, as explained at
+**   http://creativecommons.org/licenses/publicdomain.
+**
+**   * Version pre-2.8.4 Wed Mar 29 19:46:29 2006    (dl at gee)
+**
+** No additional copyright is claimed over the customizations.
+** Please do NOT bother the original author about this version here!
+**
+** If you want to use dlmalloc in another project, you should get
+** the original from: ftp://gee.cs.oswego.edu/pub/misc/
+** For thread-safe derivatives, take a look at:
+** - ptmalloc: http://www.malloc.de/
+** - nedmalloc: http://www.nedprod.com/programs/portable/nedmalloc/
+*/
+
+#define lj_alloc_c
+#define LUA_CORE
+
+/* To get the mremap prototype. Must be defined before any system includes. */
+#if defined(__linux__) && !defined(_GNU_SOURCE)
+#define _GNU_SOURCE
+#endif
+
+#include "lj_def.h"
+#include "lj_arch.h"
+#include "lj_alloc.h"
+
+#ifndef LUAJIT_USE_SYSMALLOC
+
+#define MAX_SIZE_T		(~(size_t)0)
+#define MALLOC_ALIGNMENT	((size_t)8U)
+
+#define DEFAULT_GRANULARITY	((size_t)128U * (size_t)1024U)
+#define DEFAULT_TRIM_THRESHOLD	((size_t)2U * (size_t)1024U * (size_t)1024U)
+#define DEFAULT_MMAP_THRESHOLD	((size_t)128U * (size_t)1024U)
+#define MAX_RELEASE_CHECK_RATE	255
+
+/* ------------------- size_t and alignment properties -------------------- */
+
+/* The byte and bit size of a size_t */
+#define SIZE_T_SIZE		(sizeof(size_t))
+#define SIZE_T_BITSIZE		(sizeof(size_t) << 3)
+
+/* Some constants coerced to size_t */
+/* Annoying but necessary to avoid errors on some platforms */
+#define SIZE_T_ZERO		((size_t)0)
+#define SIZE_T_ONE		((size_t)1)
+#define SIZE_T_TWO		((size_t)2)
+#define TWO_SIZE_T_SIZES	(SIZE_T_SIZE<<1)
+#define FOUR_SIZE_T_SIZES	(SIZE_T_SIZE<<2)
+#define SIX_SIZE_T_SIZES	(FOUR_SIZE_T_SIZES+TWO_SIZE_T_SIZES)
+
+/* The bit mask value corresponding to MALLOC_ALIGNMENT */
+#define CHUNK_ALIGN_MASK	(MALLOC_ALIGNMENT - SIZE_T_ONE)
+
+/* the number of bytes to offset an address to align it */
+#define align_offset(A)\
+ ((((size_t)(A) & CHUNK_ALIGN_MASK) == 0)? 0 :\
+  ((MALLOC_ALIGNMENT - ((size_t)(A) & CHUNK_ALIGN_MASK)) & CHUNK_ALIGN_MASK))
+
+/* -------------------------- MMAP support ------------------------------- */
+
+#define MFAIL			((void *)(MAX_SIZE_T))
+#define CMFAIL			((char *)(MFAIL)) /* defined for convenience */
+
+#define IS_DIRECT_BIT		(SIZE_T_ONE)
+
+#if LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#if LJ_64
+
+/* Undocumented, but hey, that's what we all love so much about Windows. */
+typedef long (*PNTAVM)(HANDLE handle, void **addr, ULONG zbits,
+		       size_t *size, ULONG alloctype, ULONG prot);
+static PNTAVM ntavm;
+
+/* Number of top bits of the lower 32 bits of an address that must be zero.
+** Apparently 0 gives us full 64 bit addresses and 1 gives us the lower 2GB.
+*/
+#define NTAVM_ZEROBITS		1
+
+static void INIT_MMAP(void)
+{
+  ntavm = (PNTAVM)GetProcAddress(GetModuleHandleA("ntdll.dll"),
+				 "NtAllocateVirtualMemory");
+}
+
+/* Win64 32 bit MMAP via NtAllocateVirtualMemory. */
+static LJ_AINLINE void *CALL_MMAP(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = NULL;
+  long st = ntavm(INVALID_HANDLE_VALUE, &ptr, NTAVM_ZEROBITS, &size,
+		  MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
+  SetLastError(olderr);
+  return st == 0 ? ptr : MFAIL;
+}
+
+/* For direct MMAP, use MEM_TOP_DOWN to minimize interference */
+static LJ_AINLINE void *DIRECT_MMAP(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = NULL;
+  long st = ntavm(INVALID_HANDLE_VALUE, &ptr, NTAVM_ZEROBITS, &size,
+		  MEM_RESERVE|MEM_COMMIT|MEM_TOP_DOWN, PAGE_READWRITE);
+  SetLastError(olderr);
+  return st == 0 ? ptr : MFAIL;
+}
+
+#else
+
+#define INIT_MMAP()		((void)0)
+
+/* Win32 MMAP via VirtualAlloc */
+static LJ_AINLINE void *CALL_MMAP(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = VirtualAlloc(0, size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
+  SetLastError(olderr);
+  return ptr ? ptr : MFAIL;
+}
+
+/* For direct MMAP, use MEM_TOP_DOWN to minimize interference */
+static LJ_AINLINE void *DIRECT_MMAP(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = VirtualAlloc(0, size, MEM_RESERVE|MEM_COMMIT|MEM_TOP_DOWN,
+			   PAGE_READWRITE);
+  SetLastError(olderr);
+  return ptr ? ptr : MFAIL;
+}
+
+#endif
+
+/* This function supports releasing coalesed segments */
+static LJ_AINLINE int CALL_MUNMAP(void *ptr, size_t size)
+{
+  DWORD olderr = GetLastError();
+  MEMORY_BASIC_INFORMATION minfo;
+  char *cptr = (char *)ptr;
+  while (size) {
+    if (VirtualQuery(cptr, &minfo, sizeof(minfo)) == 0)
+      return -1;
+    if (minfo.BaseAddress != cptr || minfo.AllocationBase != cptr ||
+	minfo.State != MEM_COMMIT || minfo.RegionSize > size)
+      return -1;
+    if (VirtualFree(cptr, 0, MEM_RELEASE) == 0)
+      return -1;
+    cptr += minfo.RegionSize;
+    size -= minfo.RegionSize;
+  }
+  SetLastError(olderr);
+  return 0;
+}
+
+#else
+
+#include <errno.h>
+#include <sys/mman.h>
+
+#define MMAP_PROT		(PROT_READ|PROT_WRITE)
+#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
+#define MAP_ANONYMOUS		MAP_ANON
+#endif
+#define MMAP_FLAGS		(MAP_PRIVATE|MAP_ANONYMOUS)
+
+#if LJ_64
+/* 64 bit mode needs special support for allocating memory in the lower 2GB. */
+
+#if defined(MAP_32BIT)
+
+/* Actually this only gives us max. 1GB in current Linux kernels. */
+static LJ_AINLINE void *CALL_MMAP(size_t size)
+{
+  int olderr = errno;
+  void *ptr = mmap(NULL, size, MMAP_PROT, MAP_32BIT|MMAP_FLAGS, -1, 0);
+  errno = olderr;
+  return ptr;
+}
+
+#elif LJ_TARGET_OSX || LJ_TARGET_PS4 || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun__)
+
+/* OSX and FreeBSD mmap() use a naive first-fit linear search.
+** That's perfect for us. Except that -pagezero_size must be set for OSX,
+** otherwise the lower 4GB are blocked. And the 32GB RLIMIT_DATA needs
+** to be reduced to 250MB on FreeBSD.
+*/
+#if LJ_TARGET_OSX
+#define MMAP_REGION_START	((uintptr_t)0x10000)
+#elif LJ_TARGET_PS4
+#define MMAP_REGION_START	((uintptr_t)0x4000)
+#else
+#define MMAP_REGION_START	((uintptr_t)0x10000000)
+#endif
+#define MMAP_REGION_END		((uintptr_t)0x80000000)
+
+#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4
+#include <sys/resource.h>
+#endif
+
+static LJ_AINLINE void *CALL_MMAP(size_t size)
+{
+  int olderr = errno;
+  /* Hint for next allocation. Doesn't need to be thread-safe. */
+  static uintptr_t alloc_hint = MMAP_REGION_START;
+  int retry = 0;
+#if (defined(__FreeBSD__) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4
+  static int rlimit_modified = 0;
+  if (LJ_UNLIKELY(rlimit_modified == 0)) {
+    struct rlimit rlim;
+    rlim.rlim_cur = rlim.rlim_max = MMAP_REGION_START;
+    setrlimit(RLIMIT_DATA, &rlim);  /* Ignore result. May fail below. */
+    rlimit_modified = 1;
+  }
+#endif
+  for (;;) {
+    void *p = mmap((void *)alloc_hint, size, MMAP_PROT, MMAP_FLAGS, -1, 0);
+    if ((uintptr_t)p >= MMAP_REGION_START &&
+	(uintptr_t)p + size < MMAP_REGION_END) {
+      alloc_hint = (uintptr_t)p + size;
+      errno = olderr;
+      return p;
+    }
+    if (p != CMFAIL) munmap(p, size);
+#ifdef __sun__
+    alloc_hint += 0x1000000;  /* Need near-exhaustive linear scan. */
+    if (alloc_hint + size < MMAP_REGION_END) continue;
+#endif
+    if (retry) break;
+    retry = 1;
+    alloc_hint = MMAP_REGION_START;
+  }
+  errno = olderr;
+  return CMFAIL;
+}
+
+#else
+
+#error "NYI: need an equivalent of MAP_32BIT for this 64 bit OS"
+
+#endif
+
+#else
+
+/* 32 bit mode is easy. */
+static LJ_AINLINE void *CALL_MMAP(size_t size)
+{
+  int olderr = errno;
+  void *ptr = mmap(NULL, size, MMAP_PROT, MMAP_FLAGS, -1, 0);
+  errno = olderr;
+  return ptr;
+}
+
+#endif
+
+#define INIT_MMAP()		((void)0)
+#define DIRECT_MMAP(s)		CALL_MMAP(s)
+
+static LJ_AINLINE int CALL_MUNMAP(void *ptr, size_t size)
+{
+  int olderr = errno;
+  int ret = munmap(ptr, size);
+  errno = olderr;
+  return ret;
+}
+
+#if LJ_TARGET_LINUX
+/* Need to define _GNU_SOURCE to get the mremap prototype. */
+static LJ_AINLINE void *CALL_MREMAP_(void *ptr, size_t osz, size_t nsz,
+				     int flags)
+{
+  int olderr = errno;
+  ptr = mremap(ptr, osz, nsz, flags);
+  errno = olderr;
+  return ptr;
+}
+
+#define CALL_MREMAP(addr, osz, nsz, mv) CALL_MREMAP_((addr), (osz), (nsz), (mv))
+#define CALL_MREMAP_NOMOVE	0
+#define CALL_MREMAP_MAYMOVE	1
+#if LJ_64
+#define CALL_MREMAP_MV		CALL_MREMAP_NOMOVE
+#else
+#define CALL_MREMAP_MV		CALL_MREMAP_MAYMOVE
+#endif
+#endif
+
+#endif
+
+#ifndef CALL_MREMAP
+#define CALL_MREMAP(addr, osz, nsz, mv) ((void)osz, MFAIL)
+#endif
+
+/* -----------------------  Chunk representations ------------------------ */
+
+struct malloc_chunk {
+  size_t               prev_foot;  /* Size of previous chunk (if free).  */
+  size_t               head;       /* Size and inuse bits. */
+  struct malloc_chunk *fd;         /* double links -- used only if free. */
+  struct malloc_chunk *bk;
+};
+
+typedef struct malloc_chunk  mchunk;
+typedef struct malloc_chunk *mchunkptr;
+typedef struct malloc_chunk *sbinptr;  /* The type of bins of chunks */
+typedef size_t bindex_t;               /* Described below */
+typedef unsigned int binmap_t;         /* Described below */
+typedef unsigned int flag_t;           /* The type of various bit flag sets */
+
+/* ------------------- Chunks sizes and alignments ----------------------- */
+
+#define MCHUNK_SIZE		(sizeof(mchunk))
+
+#define CHUNK_OVERHEAD		(SIZE_T_SIZE)
+
+/* Direct chunks need a second word of overhead ... */
+#define DIRECT_CHUNK_OVERHEAD	(TWO_SIZE_T_SIZES)
+/* ... and additional padding for fake next-chunk at foot */
+#define DIRECT_FOOT_PAD		(FOUR_SIZE_T_SIZES)
+
+/* The smallest size we can malloc is an aligned minimal chunk */
+#define MIN_CHUNK_SIZE\
+  ((MCHUNK_SIZE + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)
+
+/* conversion from malloc headers to user pointers, and back */
+#define chunk2mem(p)		((void *)((char *)(p) + TWO_SIZE_T_SIZES))
+#define mem2chunk(mem)		((mchunkptr)((char *)(mem) - TWO_SIZE_T_SIZES))
+/* chunk associated with aligned address A */
+#define align_as_chunk(A)	(mchunkptr)((A) + align_offset(chunk2mem(A)))
+
+/* Bounds on request (not chunk) sizes. */
+#define MAX_REQUEST		((~MIN_CHUNK_SIZE+1) << 2)
+#define MIN_REQUEST		(MIN_CHUNK_SIZE - CHUNK_OVERHEAD - SIZE_T_ONE)
+
+/* pad request bytes into a usable size */
+#define pad_request(req) \
+   (((req) + CHUNK_OVERHEAD + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)
+
+/* pad request, checking for minimum (but not maximum) */
+#define request2size(req) \
+  (((req) < MIN_REQUEST)? MIN_CHUNK_SIZE : pad_request(req))
+
+/* ------------------ Operations on head and foot fields ----------------- */
+
+#define PINUSE_BIT		(SIZE_T_ONE)
+#define CINUSE_BIT		(SIZE_T_TWO)
+#define INUSE_BITS		(PINUSE_BIT|CINUSE_BIT)
+
+/* Head value for fenceposts */
+#define FENCEPOST_HEAD		(INUSE_BITS|SIZE_T_SIZE)
+
+/* extraction of fields from head words */
+#define cinuse(p)		((p)->head & CINUSE_BIT)
+#define pinuse(p)		((p)->head & PINUSE_BIT)
+#define chunksize(p)		((p)->head & ~(INUSE_BITS))
+
+#define clear_pinuse(p)		((p)->head &= ~PINUSE_BIT)
+#define clear_cinuse(p)		((p)->head &= ~CINUSE_BIT)
+
+/* Treat space at ptr +/- offset as a chunk */
+#define chunk_plus_offset(p, s)		((mchunkptr)(((char *)(p)) + (s)))
+#define chunk_minus_offset(p, s)	((mchunkptr)(((char *)(p)) - (s)))
+
+/* Ptr to next or previous physical malloc_chunk. */
+#define next_chunk(p)	((mchunkptr)(((char *)(p)) + ((p)->head & ~INUSE_BITS)))
+#define prev_chunk(p)	((mchunkptr)(((char *)(p)) - ((p)->prev_foot) ))
+
+/* extract next chunk's pinuse bit */
+#define next_pinuse(p)	((next_chunk(p)->head) & PINUSE_BIT)
+
+/* Get/set size at footer */
+#define get_foot(p, s)	(((mchunkptr)((char *)(p) + (s)))->prev_foot)
+#define set_foot(p, s)	(((mchunkptr)((char *)(p) + (s)))->prev_foot = (s))
+
+/* Set size, pinuse bit, and foot */
+#define set_size_and_pinuse_of_free_chunk(p, s)\
+  ((p)->head = (s|PINUSE_BIT), set_foot(p, s))
+
+/* Set size, pinuse bit, foot, and clear next pinuse */
+#define set_free_with_pinuse(p, s, n)\
+  (clear_pinuse(n), set_size_and_pinuse_of_free_chunk(p, s))
+
+#define is_direct(p)\
+  (!((p)->head & PINUSE_BIT) && ((p)->prev_foot & IS_DIRECT_BIT))
+
+/* Get the internal overhead associated with chunk p */
+#define overhead_for(p)\
+ (is_direct(p)? DIRECT_CHUNK_OVERHEAD : CHUNK_OVERHEAD)
+
+/* ---------------------- Overlaid data structures ----------------------- */
+
+struct malloc_tree_chunk {
+  /* The first four fields must be compatible with malloc_chunk */
+  size_t                    prev_foot;
+  size_t                    head;
+  struct malloc_tree_chunk *fd;
+  struct malloc_tree_chunk *bk;
+
+  struct malloc_tree_chunk *child[2];
+  struct malloc_tree_chunk *parent;
+  bindex_t                  index;
+};
+
+typedef struct malloc_tree_chunk  tchunk;
+typedef struct malloc_tree_chunk *tchunkptr;
+typedef struct malloc_tree_chunk *tbinptr; /* The type of bins of trees */
+
+/* A little helper macro for trees */
+#define leftmost_child(t) ((t)->child[0] != 0? (t)->child[0] : (t)->child[1])
+
+/* ----------------------------- Segments -------------------------------- */
+
+struct malloc_segment {
+  char        *base;             /* base address */
+  size_t       size;             /* allocated size */
+  struct malloc_segment *next;   /* ptr to next segment */
+};
+
+typedef struct malloc_segment  msegment;
+typedef struct malloc_segment *msegmentptr;
+
+/* ---------------------------- malloc_state ----------------------------- */
+
+/* Bin types, widths and sizes */
+#define NSMALLBINS		(32U)
+#define NTREEBINS		(32U)
+#define SMALLBIN_SHIFT		(3U)
+#define SMALLBIN_WIDTH		(SIZE_T_ONE << SMALLBIN_SHIFT)
+#define TREEBIN_SHIFT		(8U)
+#define MIN_LARGE_SIZE		(SIZE_T_ONE << TREEBIN_SHIFT)
+#define MAX_SMALL_SIZE		(MIN_LARGE_SIZE - SIZE_T_ONE)
+#define MAX_SMALL_REQUEST  (MAX_SMALL_SIZE - CHUNK_ALIGN_MASK - CHUNK_OVERHEAD)
+
+struct malloc_state {
+  binmap_t   smallmap;
+  binmap_t   treemap;
+  size_t     dvsize;
+  size_t     topsize;
+  mchunkptr  dv;
+  mchunkptr  top;
+  size_t     trim_check;
+  size_t     release_checks;
+  mchunkptr  smallbins[(NSMALLBINS+1)*2];
+  tbinptr    treebins[NTREEBINS];
+  msegment   seg;
+};
+
+typedef struct malloc_state *mstate;
+
+#define is_initialized(M)	((M)->top != 0)
+
+/* -------------------------- system alloc setup ------------------------- */
+
+/* page-align a size */
+#define page_align(S)\
+ (((S) + (LJ_PAGESIZE - SIZE_T_ONE)) & ~(LJ_PAGESIZE - SIZE_T_ONE))
+
+/* granularity-align a size */
+#define granularity_align(S)\
+  (((S) + (DEFAULT_GRANULARITY - SIZE_T_ONE))\
+   & ~(DEFAULT_GRANULARITY - SIZE_T_ONE))
+
+#if LJ_TARGET_WINDOWS
+#define mmap_align(S)	granularity_align(S)
+#else
+#define mmap_align(S)	page_align(S)
+#endif
+
+/*  True if segment S holds address A */
+#define segment_holds(S, A)\
+  ((char *)(A) >= S->base && (char *)(A) < S->base + S->size)
+
+/* Return segment holding given address */
+static msegmentptr segment_holding(mstate m, char *addr)
+{
+  msegmentptr sp = &m->seg;
+  for (;;) {
+    if (addr >= sp->base && addr < sp->base + sp->size)
+      return sp;
+    if ((sp = sp->next) == 0)
+      return 0;
+  }
+}
+
+/* Return true if segment contains a segment link */
+static int has_segment_link(mstate m, msegmentptr ss)
+{
+  msegmentptr sp = &m->seg;
+  for (;;) {
+    if ((char *)sp >= ss->base && (char *)sp < ss->base + ss->size)
+      return 1;
+    if ((sp = sp->next) == 0)
+      return 0;
+  }
+}
+
+/*
+  TOP_FOOT_SIZE is padding at the end of a segment, including space
+  that may be needed to place segment records and fenceposts when new
+  noncontiguous segments are added.
+*/
+#define TOP_FOOT_SIZE\
+  (align_offset(chunk2mem(0))+pad_request(sizeof(struct malloc_segment))+MIN_CHUNK_SIZE)
+
+/* ---------------------------- Indexing Bins ---------------------------- */
+
+#define is_small(s)		(((s) >> SMALLBIN_SHIFT) < NSMALLBINS)
+#define small_index(s)		((s)  >> SMALLBIN_SHIFT)
+#define small_index2size(i)	((i)  << SMALLBIN_SHIFT)
+#define MIN_SMALL_INDEX		(small_index(MIN_CHUNK_SIZE))
+
+/* addressing by index. See above about smallbin repositioning */
+#define smallbin_at(M, i)	((sbinptr)((char *)&((M)->smallbins[(i)<<1])))
+#define treebin_at(M,i)		(&((M)->treebins[i]))
+
+/* assign tree index for size S to variable I */
+#define compute_tree_index(S, I)\
+{\
+  unsigned int X = (unsigned int)(S >> TREEBIN_SHIFT);\
+  if (X == 0) {\
+    I = 0;\
+  } else if (X > 0xFFFF) {\
+    I = NTREEBINS-1;\
+  } else {\
+    unsigned int K = lj_fls(X);\
+    I =  (bindex_t)((K << 1) + ((S >> (K + (TREEBIN_SHIFT-1)) & 1)));\
+  }\
+}
+
+/* Bit representing maximum resolved size in a treebin at i */
+#define bit_for_tree_index(i) \
+   (i == NTREEBINS-1)? (SIZE_T_BITSIZE-1) : (((i) >> 1) + TREEBIN_SHIFT - 2)
+
+/* Shift placing maximum resolved bit in a treebin at i as sign bit */
+#define leftshift_for_tree_index(i) \
+   ((i == NTREEBINS-1)? 0 : \
+    ((SIZE_T_BITSIZE-SIZE_T_ONE) - (((i) >> 1) + TREEBIN_SHIFT - 2)))
+
+/* The size of the smallest chunk held in bin with index i */
+#define minsize_for_tree_index(i) \
+   ((SIZE_T_ONE << (((i) >> 1) + TREEBIN_SHIFT)) |  \
+   (((size_t)((i) & SIZE_T_ONE)) << (((i) >> 1) + TREEBIN_SHIFT - 1)))
+
+/* ------------------------ Operations on bin maps ----------------------- */
+
+/* bit corresponding to given index */
+#define idx2bit(i)		((binmap_t)(1) << (i))
+
+/* Mark/Clear bits with given index */
+#define mark_smallmap(M,i)	((M)->smallmap |=  idx2bit(i))
+#define clear_smallmap(M,i)	((M)->smallmap &= ~idx2bit(i))
+#define smallmap_is_marked(M,i)	((M)->smallmap &   idx2bit(i))
+
+#define mark_treemap(M,i)	((M)->treemap  |=  idx2bit(i))
+#define clear_treemap(M,i)	((M)->treemap  &= ~idx2bit(i))
+#define treemap_is_marked(M,i)	((M)->treemap  &   idx2bit(i))
+
+/* mask with all bits to left of least bit of x on */
+#define left_bits(x)		((x<<1) | (~(x<<1)+1))
+
+/* Set cinuse bit and pinuse bit of next chunk */
+#define set_inuse(M,p,s)\
+  ((p)->head = (((p)->head & PINUSE_BIT)|s|CINUSE_BIT),\
+  ((mchunkptr)(((char *)(p)) + (s)))->head |= PINUSE_BIT)
+
+/* Set cinuse and pinuse of this chunk and pinuse of next chunk */
+#define set_inuse_and_pinuse(M,p,s)\
+  ((p)->head = (s|PINUSE_BIT|CINUSE_BIT),\
+  ((mchunkptr)(((char *)(p)) + (s)))->head |= PINUSE_BIT)
+
+/* Set size, cinuse and pinuse bit of this chunk */
+#define set_size_and_pinuse_of_inuse_chunk(M, p, s)\
+  ((p)->head = (s|PINUSE_BIT|CINUSE_BIT))
+
+/* ----------------------- Operations on smallbins ----------------------- */
+
+/* Link a free chunk into a smallbin  */
+#define insert_small_chunk(M, P, S) {\
+  bindex_t I = small_index(S);\
+  mchunkptr B = smallbin_at(M, I);\
+  mchunkptr F = B;\
+  if (!smallmap_is_marked(M, I))\
+    mark_smallmap(M, I);\
+  else\
+    F = B->fd;\
+  B->fd = P;\
+  F->bk = P;\
+  P->fd = F;\
+  P->bk = B;\
+}
+
+/* Unlink a chunk from a smallbin  */
+#define unlink_small_chunk(M, P, S) {\
+  mchunkptr F = P->fd;\
+  mchunkptr B = P->bk;\
+  bindex_t I = small_index(S);\
+  if (F == B) {\
+    clear_smallmap(M, I);\
+  } else {\
+    F->bk = B;\
+    B->fd = F;\
+  }\
+}
+
+/* Unlink the first chunk from a smallbin */
+#define unlink_first_small_chunk(M, B, P, I) {\
+  mchunkptr F = P->fd;\
+  if (B == F) {\
+    clear_smallmap(M, I);\
+  } else {\
+    B->fd = F;\
+    F->bk = B;\
+  }\
+}
+
+/* Replace dv node, binning the old one */
+/* Used only when dvsize known to be small */
+#define replace_dv(M, P, S) {\
+  size_t DVS = M->dvsize;\
+  if (DVS != 0) {\
+    mchunkptr DV = M->dv;\
+    insert_small_chunk(M, DV, DVS);\
+  }\
+  M->dvsize = S;\
+  M->dv = P;\
+}
+
+/* ------------------------- Operations on trees ------------------------- */
+
+/* Insert chunk into tree */
+#define insert_large_chunk(M, X, S) {\
+  tbinptr *H;\
+  bindex_t I;\
+  compute_tree_index(S, I);\
+  H = treebin_at(M, I);\
+  X->index = I;\
+  X->child[0] = X->child[1] = 0;\
+  if (!treemap_is_marked(M, I)) {\
+    mark_treemap(M, I);\
+    *H = X;\
+    X->parent = (tchunkptr)H;\
+    X->fd = X->bk = X;\
+  } else {\
+    tchunkptr T = *H;\
+    size_t K = S << leftshift_for_tree_index(I);\
+    for (;;) {\
+      if (chunksize(T) != S) {\
+	tchunkptr *C = &(T->child[(K >> (SIZE_T_BITSIZE-SIZE_T_ONE)) & 1]);\
+	K <<= 1;\
+	if (*C != 0) {\
+	  T = *C;\
+	} else {\
+	  *C = X;\
+	  X->parent = T;\
+	  X->fd = X->bk = X;\
+	  break;\
+	}\
+      } else {\
+	tchunkptr F = T->fd;\
+	T->fd = F->bk = X;\
+	X->fd = F;\
+	X->bk = T;\
+	X->parent = 0;\
+	break;\
+      }\
+    }\
+  }\
+}
+
+#define unlink_large_chunk(M, X) {\
+  tchunkptr XP = X->parent;\
+  tchunkptr R;\
+  if (X->bk != X) {\
+    tchunkptr F = X->fd;\
+    R = X->bk;\
+    F->bk = R;\
+    R->fd = F;\
+  } else {\
+    tchunkptr *RP;\
+    if (((R = *(RP = &(X->child[1]))) != 0) ||\
+	((R = *(RP = &(X->child[0]))) != 0)) {\
+      tchunkptr *CP;\
+      while ((*(CP = &(R->child[1])) != 0) ||\
+	     (*(CP = &(R->child[0])) != 0)) {\
+	R = *(RP = CP);\
+      }\
+      *RP = 0;\
+    }\
+  }\
+  if (XP != 0) {\
+    tbinptr *H = treebin_at(M, X->index);\
+    if (X == *H) {\
+      if ((*H = R) == 0) \
+	clear_treemap(M, X->index);\
+    } else {\
+      if (XP->child[0] == X) \
+	XP->child[0] = R;\
+      else \
+	XP->child[1] = R;\
+    }\
+    if (R != 0) {\
+      tchunkptr C0, C1;\
+      R->parent = XP;\
+      if ((C0 = X->child[0]) != 0) {\
+	R->child[0] = C0;\
+	C0->parent = R;\
+      }\
+      if ((C1 = X->child[1]) != 0) {\
+	R->child[1] = C1;\
+	C1->parent = R;\
+      }\
+    }\
+  }\
+}
+
+/* Relays to large vs small bin operations */
+
+#define insert_chunk(M, P, S)\
+  if (is_small(S)) { insert_small_chunk(M, P, S)\
+  } else { tchunkptr TP = (tchunkptr)(P); insert_large_chunk(M, TP, S); }
+
+#define unlink_chunk(M, P, S)\
+  if (is_small(S)) { unlink_small_chunk(M, P, S)\
+  } else { tchunkptr TP = (tchunkptr)(P); unlink_large_chunk(M, TP); }
+
+/* -----------------------  Direct-mmapping chunks ----------------------- */
+
+static void *direct_alloc(size_t nb)
+{
+  size_t mmsize = mmap_align(nb + SIX_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
+  if (LJ_LIKELY(mmsize > nb)) {     /* Check for wrap around 0 */
+    char *mm = (char *)(DIRECT_MMAP(mmsize));
+    if (mm != CMFAIL) {
+      size_t offset = align_offset(chunk2mem(mm));
+      size_t psize = mmsize - offset - DIRECT_FOOT_PAD;
+      mchunkptr p = (mchunkptr)(mm + offset);
+      p->prev_foot = offset | IS_DIRECT_BIT;
+      p->head = psize|CINUSE_BIT;
+      chunk_plus_offset(p, psize)->head = FENCEPOST_HEAD;
+      chunk_plus_offset(p, psize+SIZE_T_SIZE)->head = 0;
+      return chunk2mem(p);
+    }
+  }
+  return NULL;
+}
+
+static mchunkptr direct_resize(mchunkptr oldp, size_t nb)
+{
+  size_t oldsize = chunksize(oldp);
+  if (is_small(nb)) /* Can't shrink direct regions below small size */
+    return NULL;
+  /* Keep old chunk if big enough but not too big */
+  if (oldsize >= nb + SIZE_T_SIZE &&
+      (oldsize - nb) <= (DEFAULT_GRANULARITY >> 1)) {
+    return oldp;
+  } else {
+    size_t offset = oldp->prev_foot & ~IS_DIRECT_BIT;
+    size_t oldmmsize = oldsize + offset + DIRECT_FOOT_PAD;
+    size_t newmmsize = mmap_align(nb + SIX_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
+    char *cp = (char *)CALL_MREMAP((char *)oldp - offset,
+				   oldmmsize, newmmsize, CALL_MREMAP_MV);
+    if (cp != CMFAIL) {
+      mchunkptr newp = (mchunkptr)(cp + offset);
+      size_t psize = newmmsize - offset - DIRECT_FOOT_PAD;
+      newp->head = psize|CINUSE_BIT;
+      chunk_plus_offset(newp, psize)->head = FENCEPOST_HEAD;
+      chunk_plus_offset(newp, psize+SIZE_T_SIZE)->head = 0;
+      return newp;
+    }
+  }
+  return NULL;
+}
+
+/* -------------------------- mspace management -------------------------- */
+
+/* Initialize top chunk and its size */
+static void init_top(mstate m, mchunkptr p, size_t psize)
+{
+  /* Ensure alignment */
+  size_t offset = align_offset(chunk2mem(p));
+  p = (mchunkptr)((char *)p + offset);
+  psize -= offset;
+
+  m->top = p;
+  m->topsize = psize;
+  p->head = psize | PINUSE_BIT;
+  /* set size of fake trailing chunk holding overhead space only once */
+  chunk_plus_offset(p, psize)->head = TOP_FOOT_SIZE;
+  m->trim_check = DEFAULT_TRIM_THRESHOLD; /* reset on each update */
+}
+
+/* Initialize bins for a new mstate that is otherwise zeroed out */
+static void init_bins(mstate m)
+{
+  /* Establish circular links for smallbins */
+  bindex_t i;
+  for (i = 0; i < NSMALLBINS; i++) {
+    sbinptr bin = smallbin_at(m,i);
+    bin->fd = bin->bk = bin;
+  }
+}
+
+/* Allocate chunk and prepend remainder with chunk in successor base. */
+static void *prepend_alloc(mstate m, char *newbase, char *oldbase, size_t nb)
+{
+  mchunkptr p = align_as_chunk(newbase);
+  mchunkptr oldfirst = align_as_chunk(oldbase);
+  size_t psize = (size_t)((char *)oldfirst - (char *)p);
+  mchunkptr q = chunk_plus_offset(p, nb);
+  size_t qsize = psize - nb;
+  set_size_and_pinuse_of_inuse_chunk(m, p, nb);
+
+  /* consolidate remainder with first chunk of old base */
+  if (oldfirst == m->top) {
+    size_t tsize = m->topsize += qsize;
+    m->top = q;
+    q->head = tsize | PINUSE_BIT;
+  } else if (oldfirst == m->dv) {
+    size_t dsize = m->dvsize += qsize;
+    m->dv = q;
+    set_size_and_pinuse_of_free_chunk(q, dsize);
+  } else {
+    if (!cinuse(oldfirst)) {
+      size_t nsize = chunksize(oldfirst);
+      unlink_chunk(m, oldfirst, nsize);
+      oldfirst = chunk_plus_offset(oldfirst, nsize);
+      qsize += nsize;
+    }
+    set_free_with_pinuse(q, qsize, oldfirst);
+    insert_chunk(m, q, qsize);
+  }
+
+  return chunk2mem(p);
+}
+
+/* Add a segment to hold a new noncontiguous region */
+static void add_segment(mstate m, char *tbase, size_t tsize)
+{
+  /* Determine locations and sizes of segment, fenceposts, old top */
+  char *old_top = (char *)m->top;
+  msegmentptr oldsp = segment_holding(m, old_top);
+  char *old_end = oldsp->base + oldsp->size;
+  size_t ssize = pad_request(sizeof(struct malloc_segment));
+  char *rawsp = old_end - (ssize + FOUR_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
+  size_t offset = align_offset(chunk2mem(rawsp));
+  char *asp = rawsp + offset;
+  char *csp = (asp < (old_top + MIN_CHUNK_SIZE))? old_top : asp;
+  mchunkptr sp = (mchunkptr)csp;
+  msegmentptr ss = (msegmentptr)(chunk2mem(sp));
+  mchunkptr tnext = chunk_plus_offset(sp, ssize);
+  mchunkptr p = tnext;
+
+  /* reset top to new space */
+  init_top(m, (mchunkptr)tbase, tsize - TOP_FOOT_SIZE);
+
+  /* Set up segment record */
+  set_size_and_pinuse_of_inuse_chunk(m, sp, ssize);
+  *ss = m->seg; /* Push current record */
+  m->seg.base = tbase;
+  m->seg.size = tsize;
+  m->seg.next = ss;
+
+  /* Insert trailing fenceposts */
+  for (;;) {
+    mchunkptr nextp = chunk_plus_offset(p, SIZE_T_SIZE);
+    p->head = FENCEPOST_HEAD;
+    if ((char *)(&(nextp->head)) < old_end)
+      p = nextp;
+    else
+      break;
+  }
+
+  /* Insert the rest of old top into a bin as an ordinary free chunk */
+  if (csp != old_top) {
+    mchunkptr q = (mchunkptr)old_top;
+    size_t psize = (size_t)(csp - old_top);
+    mchunkptr tn = chunk_plus_offset(q, psize);
+    set_free_with_pinuse(q, psize, tn);
+    insert_chunk(m, q, psize);
+  }
+}
+
+/* -------------------------- System allocation -------------------------- */
+
+static void *alloc_sys(mstate m, size_t nb)
+{
+  char *tbase = CMFAIL;
+  size_t tsize = 0;
+
+  /* Directly map large chunks */
+  if (LJ_UNLIKELY(nb >= DEFAULT_MMAP_THRESHOLD)) {
+    void *mem = direct_alloc(nb);
+    if (mem != 0)
+      return mem;
+  }
+
+  {
+    size_t req = nb + TOP_FOOT_SIZE + SIZE_T_ONE;
+    size_t rsize = granularity_align(req);
+    if (LJ_LIKELY(rsize > nb)) { /* Fail if wraps around zero */
+      char *mp = (char *)(CALL_MMAP(rsize));
+      if (mp != CMFAIL) {
+	tbase = mp;
+	tsize = rsize;
+      }
+    }
+  }
+
+  if (tbase != CMFAIL) {
+    msegmentptr sp = &m->seg;
+    /* Try to merge with an existing segment */
+    while (sp != 0 && tbase != sp->base + sp->size)
+      sp = sp->next;
+    if (sp != 0 && segment_holds(sp, m->top)) { /* append */
+      sp->size += tsize;
+      init_top(m, m->top, m->topsize + tsize);
+    } else {
+      sp = &m->seg;
+      while (sp != 0 && sp->base != tbase + tsize)
+	sp = sp->next;
+      if (sp != 0) {
+	char *oldbase = sp->base;
+	sp->base = tbase;
+	sp->size += tsize;
+	return prepend_alloc(m, tbase, oldbase, nb);
+      } else {
+	add_segment(m, tbase, tsize);
+      }
+    }
+
+    if (nb < m->topsize) { /* Allocate from new or extended top space */
+      size_t rsize = m->topsize -= nb;
+      mchunkptr p = m->top;
+      mchunkptr r = m->top = chunk_plus_offset(p, nb);
+      r->head = rsize | PINUSE_BIT;
+      set_size_and_pinuse_of_inuse_chunk(m, p, nb);
+      return chunk2mem(p);
+    }
+  }
+
+  return NULL;
+}
+
+/* -----------------------  system deallocation -------------------------- */
+
+/* Unmap and unlink any mmapped segments that don't contain used chunks */
+static size_t release_unused_segments(mstate m)
+{
+  size_t released = 0;
+  size_t nsegs = 0;
+  msegmentptr pred = &m->seg;
+  msegmentptr sp = pred->next;
+  while (sp != 0) {
+    char *base = sp->base;
+    size_t size = sp->size;
+    msegmentptr next = sp->next;
+    nsegs++;
+    {
+      mchunkptr p = align_as_chunk(base);
+      size_t psize = chunksize(p);
+      /* Can unmap if first chunk holds entire segment and not pinned */
+      if (!cinuse(p) && (char *)p + psize >= base + size - TOP_FOOT_SIZE) {
+	tchunkptr tp = (tchunkptr)p;
+	if (p == m->dv) {
+	  m->dv = 0;
+	  m->dvsize = 0;
+	} else {
+	  unlink_large_chunk(m, tp);
+	}
+	if (CALL_MUNMAP(base, size) == 0) {
+	  released += size;
+	  /* unlink obsoleted record */
+	  sp = pred;
+	  sp->next = next;
+	} else { /* back out if cannot unmap */
+	  insert_large_chunk(m, tp, psize);
+	}
+      }
+    }
+    pred = sp;
+    sp = next;
+  }
+  /* Reset check counter */
+  m->release_checks = nsegs > MAX_RELEASE_CHECK_RATE ?
+		      nsegs : MAX_RELEASE_CHECK_RATE;
+  return released;
+}
+
+static int alloc_trim(mstate m, size_t pad)
+{
+  size_t released = 0;
+  if (pad < MAX_REQUEST && is_initialized(m)) {
+    pad += TOP_FOOT_SIZE; /* ensure enough room for segment overhead */
+
+    if (m->topsize > pad) {
+      /* Shrink top space in granularity-size units, keeping at least one */
+      size_t unit = DEFAULT_GRANULARITY;
+      size_t extra = ((m->topsize - pad + (unit - SIZE_T_ONE)) / unit -
+		      SIZE_T_ONE) * unit;
+      msegmentptr sp = segment_holding(m, (char *)m->top);
+
+      if (sp->size >= extra &&
+	  !has_segment_link(m, sp)) { /* can't shrink if pinned */
+	size_t newsize = sp->size - extra;
+	/* Prefer mremap, fall back to munmap */
+	if ((CALL_MREMAP(sp->base, sp->size, newsize, CALL_MREMAP_NOMOVE) != MFAIL) ||
+	    (CALL_MUNMAP(sp->base + newsize, extra) == 0)) {
+	  released = extra;
+	}
+      }
+
+      if (released != 0) {
+	sp->size -= released;
+	init_top(m, m->top, m->topsize - released);
+      }
+    }
+
+    /* Unmap any unused mmapped segments */
+    released += release_unused_segments(m);
+
+    /* On failure, disable autotrim to avoid repeated failed future calls */
+    if (released == 0 && m->topsize > m->trim_check)
+      m->trim_check = MAX_SIZE_T;
+  }
+
+  return (released != 0)? 1 : 0;
+}
+
+/* ---------------------------- malloc support --------------------------- */
+
+/* allocate a large request from the best fitting chunk in a treebin */
+static void *tmalloc_large(mstate m, size_t nb)
+{
+  tchunkptr v = 0;
+  size_t rsize = ~nb+1; /* Unsigned negation */
+  tchunkptr t;
+  bindex_t idx;
+  compute_tree_index(nb, idx);
+
+  if ((t = *treebin_at(m, idx)) != 0) {
+    /* Traverse tree for this bin looking for node with size == nb */
+    size_t sizebits = nb << leftshift_for_tree_index(idx);
+    tchunkptr rst = 0;  /* The deepest untaken right subtree */
+    for (;;) {
+      tchunkptr rt;
+      size_t trem = chunksize(t) - nb;
+      if (trem < rsize) {
+	v = t;
+	if ((rsize = trem) == 0)
+	  break;
+      }
+      rt = t->child[1];
+      t = t->child[(sizebits >> (SIZE_T_BITSIZE-SIZE_T_ONE)) & 1];
+      if (rt != 0 && rt != t)
+	rst = rt;
+      if (t == 0) {
+	t = rst; /* set t to least subtree holding sizes > nb */
+	break;
+      }
+      sizebits <<= 1;
+    }
+  }
+
+  if (t == 0 && v == 0) { /* set t to root of next non-empty treebin */
+    binmap_t leftbits = left_bits(idx2bit(idx)) & m->treemap;
+    if (leftbits != 0)
+      t = *treebin_at(m, lj_ffs(leftbits));
+  }
+
+  while (t != 0) { /* find smallest of tree or subtree */
+    size_t trem = chunksize(t) - nb;
+    if (trem < rsize) {
+      rsize = trem;
+      v = t;
+    }
+    t = leftmost_child(t);
+  }
+
+  /*  If dv is a better fit, return NULL so malloc will use it */
+  if (v != 0 && rsize < (size_t)(m->dvsize - nb)) {
+    mchunkptr r = chunk_plus_offset(v, nb);
+    unlink_large_chunk(m, v);
+    if (rsize < MIN_CHUNK_SIZE) {
+      set_inuse_and_pinuse(m, v, (rsize + nb));
+    } else {
+      set_size_and_pinuse_of_inuse_chunk(m, v, nb);
+      set_size_and_pinuse_of_free_chunk(r, rsize);
+      insert_chunk(m, r, rsize);
+    }
+    return chunk2mem(v);
+  }
+  return NULL;
+}
+
+/* allocate a small request from the best fitting chunk in a treebin */
+static void *tmalloc_small(mstate m, size_t nb)
+{
+  tchunkptr t, v;
+  mchunkptr r;
+  size_t rsize;
+  bindex_t i = lj_ffs(m->treemap);
+
+  v = t = *treebin_at(m, i);
+  rsize = chunksize(t) - nb;
+
+  while ((t = leftmost_child(t)) != 0) {
+    size_t trem = chunksize(t) - nb;
+    if (trem < rsize) {
+      rsize = trem;
+      v = t;
+    }
+  }
+
+  r = chunk_plus_offset(v, nb);
+  unlink_large_chunk(m, v);
+  if (rsize < MIN_CHUNK_SIZE) {
+    set_inuse_and_pinuse(m, v, (rsize + nb));
+  } else {
+    set_size_and_pinuse_of_inuse_chunk(m, v, nb);
+    set_size_and_pinuse_of_free_chunk(r, rsize);
+    replace_dv(m, r, rsize);
+  }
+  return chunk2mem(v);
+}
+
+/* ----------------------------------------------------------------------- */
+
+void *lj_alloc_create(void)
+{
+  size_t tsize = DEFAULT_GRANULARITY;
+  char *tbase;
+  INIT_MMAP();
+  tbase = (char *)(CALL_MMAP(tsize));
+  if (tbase != CMFAIL) {
+    size_t msize = pad_request(sizeof(struct malloc_state));
+    mchunkptr mn;
+    mchunkptr msp = align_as_chunk(tbase);
+    mstate m = (mstate)(chunk2mem(msp));
+    memset(m, 0, msize);
+    msp->head = (msize|PINUSE_BIT|CINUSE_BIT);
+    m->seg.base = tbase;
+    m->seg.size = tsize;
+    m->release_checks = MAX_RELEASE_CHECK_RATE;
+    init_bins(m);
+    mn = next_chunk(mem2chunk(m));
+    init_top(m, mn, (size_t)((tbase + tsize) - (char *)mn) - TOP_FOOT_SIZE);
+    return m;
+  }
+  return NULL;
+}
+
+void lj_alloc_destroy(void *msp)
+{
+  mstate ms = (mstate)msp;
+  msegmentptr sp = &ms->seg;
+  while (sp != 0) {
+    char *base = sp->base;
+    size_t size = sp->size;
+    sp = sp->next;
+    CALL_MUNMAP(base, size);
+  }
+}
+
+static LJ_NOINLINE void *lj_alloc_malloc(void *msp, size_t nsize)
+{
+  mstate ms = (mstate)msp;
+  void *mem;
+  size_t nb;
+  if (nsize <= MAX_SMALL_REQUEST) {
+    bindex_t idx;
+    binmap_t smallbits;
+    nb = (nsize < MIN_REQUEST)? MIN_CHUNK_SIZE : pad_request(nsize);
+    idx = small_index(nb);
+    smallbits = ms->smallmap >> idx;
+
+    if ((smallbits & 0x3U) != 0) { /* Remainderless fit to a smallbin. */
+      mchunkptr b, p;
+      idx += ~smallbits & 1;       /* Uses next bin if idx empty */
+      b = smallbin_at(ms, idx);
+      p = b->fd;
+      unlink_first_small_chunk(ms, b, p, idx);
+      set_inuse_and_pinuse(ms, p, small_index2size(idx));
+      mem = chunk2mem(p);
+      return mem;
+    } else if (nb > ms->dvsize) {
+      if (smallbits != 0) { /* Use chunk in next nonempty smallbin */
+	mchunkptr b, p, r;
+	size_t rsize;
+	binmap_t leftbits = (smallbits << idx) & left_bits(idx2bit(idx));
+	bindex_t i = lj_ffs(leftbits);
+	b = smallbin_at(ms, i);
+	p = b->fd;
+	unlink_first_small_chunk(ms, b, p, i);
+	rsize = small_index2size(i) - nb;
+	/* Fit here cannot be remainderless if 4byte sizes */
+	if (SIZE_T_SIZE != 4 && rsize < MIN_CHUNK_SIZE) {
+	  set_inuse_and_pinuse(ms, p, small_index2size(i));
+	} else {
+	  set_size_and_pinuse_of_inuse_chunk(ms, p, nb);
+	  r = chunk_plus_offset(p, nb);
+	  set_size_and_pinuse_of_free_chunk(r, rsize);
+	  replace_dv(ms, r, rsize);
+	}
+	mem = chunk2mem(p);
+	return mem;
+      } else if (ms->treemap != 0 && (mem = tmalloc_small(ms, nb)) != 0) {
+	return mem;
+      }
+    }
+  } else if (nsize >= MAX_REQUEST) {
+    nb = MAX_SIZE_T; /* Too big to allocate. Force failure (in sys alloc) */
+  } else {
+    nb = pad_request(nsize);
+    if (ms->treemap != 0 && (mem = tmalloc_large(ms, nb)) != 0) {
+      return mem;
+    }
+  }
+
+  if (nb <= ms->dvsize) {
+    size_t rsize = ms->dvsize - nb;
+    mchunkptr p = ms->dv;
+    if (rsize >= MIN_CHUNK_SIZE) { /* split dv */
+      mchunkptr r = ms->dv = chunk_plus_offset(p, nb);
+      ms->dvsize = rsize;
+      set_size_and_pinuse_of_free_chunk(r, rsize);
+      set_size_and_pinuse_of_inuse_chunk(ms, p, nb);
+    } else { /* exhaust dv */
+      size_t dvs = ms->dvsize;
+      ms->dvsize = 0;
+      ms->dv = 0;
+      set_inuse_and_pinuse(ms, p, dvs);
+    }
+    mem = chunk2mem(p);
+    return mem;
+  } else if (nb < ms->topsize) { /* Split top */
+    size_t rsize = ms->topsize -= nb;
+    mchunkptr p = ms->top;
+    mchunkptr r = ms->top = chunk_plus_offset(p, nb);
+    r->head = rsize | PINUSE_BIT;
+    set_size_and_pinuse_of_inuse_chunk(ms, p, nb);
+    mem = chunk2mem(p);
+    return mem;
+  }
+  return alloc_sys(ms, nb);
+}
+
+static LJ_NOINLINE void *lj_alloc_free(void *msp, void *ptr)
+{
+  if (ptr != 0) {
+    mchunkptr p = mem2chunk(ptr);
+    mstate fm = (mstate)msp;
+    size_t psize = chunksize(p);
+    mchunkptr next = chunk_plus_offset(p, psize);
+    if (!pinuse(p)) {
+      size_t prevsize = p->prev_foot;
+      if ((prevsize & IS_DIRECT_BIT) != 0) {
+	prevsize &= ~IS_DIRECT_BIT;
+	psize += prevsize + DIRECT_FOOT_PAD;
+	CALL_MUNMAP((char *)p - prevsize, psize);
+	return NULL;
+      } else {
+	mchunkptr prev = chunk_minus_offset(p, prevsize);
+	psize += prevsize;
+	p = prev;
+	/* consolidate backward */
+	if (p != fm->dv) {
+	  unlink_chunk(fm, p, prevsize);
+	} else if ((next->head & INUSE_BITS) == INUSE_BITS) {
+	  fm->dvsize = psize;
+	  set_free_with_pinuse(p, psize, next);
+	  return NULL;
+	}
+      }
+    }
+    if (!cinuse(next)) {  /* consolidate forward */
+      if (next == fm->top) {
+	size_t tsize = fm->topsize += psize;
+	fm->top = p;
+	p->head = tsize | PINUSE_BIT;
+	if (p == fm->dv) {
+	  fm->dv = 0;
+	  fm->dvsize = 0;
+	}
+	if (tsize > fm->trim_check)
+	  alloc_trim(fm, 0);
+	return NULL;
+      } else if (next == fm->dv) {
+	size_t dsize = fm->dvsize += psize;
+	fm->dv = p;
+	set_size_and_pinuse_of_free_chunk(p, dsize);
+	return NULL;
+      } else {
+	size_t nsize = chunksize(next);
+	psize += nsize;
+	unlink_chunk(fm, next, nsize);
+	set_size_and_pinuse_of_free_chunk(p, psize);
+	if (p == fm->dv) {
+	  fm->dvsize = psize;
+	  return NULL;
+	}
+      }
+    } else {
+      set_free_with_pinuse(p, psize, next);
+    }
+
+    if (is_small(psize)) {
+      insert_small_chunk(fm, p, psize);
+    } else {
+      tchunkptr tp = (tchunkptr)p;
+      insert_large_chunk(fm, tp, psize);
+      if (--fm->release_checks == 0)
+	release_unused_segments(fm);
+    }
+  }
+  return NULL;
+}
+
+static LJ_NOINLINE void *lj_alloc_realloc(void *msp, void *ptr, size_t nsize)
+{
+  if (nsize >= MAX_REQUEST) {
+    return NULL;
+  } else {
+    mstate m = (mstate)msp;
+    mchunkptr oldp = mem2chunk(ptr);
+    size_t oldsize = chunksize(oldp);
+    mchunkptr next = chunk_plus_offset(oldp, oldsize);
+    mchunkptr newp = 0;
+    size_t nb = request2size(nsize);
+
+    /* Try to either shrink or extend into top. Else malloc-copy-free */
+    if (is_direct(oldp)) {
+      newp = direct_resize(oldp, nb);  /* this may return NULL. */
+    } else if (oldsize >= nb) { /* already big enough */
+      size_t rsize = oldsize - nb;
+      newp = oldp;
+      if (rsize >= MIN_CHUNK_SIZE) {
+	mchunkptr rem = chunk_plus_offset(newp, nb);
+	set_inuse(m, newp, nb);
+	set_inuse(m, rem, rsize);
+	lj_alloc_free(m, chunk2mem(rem));
+      }
+    } else if (next == m->top && oldsize + m->topsize > nb) {
+      /* Expand into top */
+      size_t newsize = oldsize + m->topsize;
+      size_t newtopsize = newsize - nb;
+      mchunkptr newtop = chunk_plus_offset(oldp, nb);
+      set_inuse(m, oldp, nb);
+      newtop->head = newtopsize |PINUSE_BIT;
+      m->top = newtop;
+      m->topsize = newtopsize;
+      newp = oldp;
+    }
+
+    if (newp != 0) {
+      return chunk2mem(newp);
+    } else {
+      void *newmem = lj_alloc_malloc(m, nsize);
+      if (newmem != 0) {
+	size_t oc = oldsize - overhead_for(oldp);
+	memcpy(newmem, ptr, oc < nsize ? oc : nsize);
+	lj_alloc_free(m, ptr);
+      }
+      return newmem;
+    }
+  }
+}
+
+void *lj_alloc_f(void *msp, void *ptr, size_t osize, size_t nsize)
+{
+  (void)osize;
+  if (nsize == 0) {
+    return lj_alloc_free(msp, ptr);
+  } else if (ptr == NULL) {
+    return lj_alloc_malloc(msp, nsize);
+  } else {
+    return lj_alloc_realloc(msp, ptr, nsize);
+  }
+}
+
+#endif
diff --git a/lib/luajit/src/lj_alloc.h b/lib/luajit/src/lj_alloc.h
new file mode 100644
index 00000000..f87a7cf3
--- /dev/null
+++ b/lib/luajit/src/lj_alloc.h
@@ -0,0 +1,17 @@
+/*
+** Bundled memory allocator.
+** Donated to the public domain.
+*/
+
+#ifndef _LJ_ALLOC_H
+#define _LJ_ALLOC_H
+
+#include "lj_def.h"
+
+#ifndef LUAJIT_USE_SYSMALLOC
+LJ_FUNC void *lj_alloc_create(void);
+LJ_FUNC void lj_alloc_destroy(void *msp);
+LJ_FUNC void *lj_alloc_f(void *msp, void *ptr, size_t osize, size_t nsize);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_api.c b/lib/luajit/src/lj_api.c
new file mode 100644
index 00000000..bc5290b2
--- /dev/null
+++ b/lib/luajit/src/lj_api.c
@@ -0,0 +1,1200 @@
+/*
+** Public Lua/C API.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_api_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_udata.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#include "lj_frame.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+
+/* -- Common helper functions --------------------------------------------- */
+
+#define api_checknelems(L, n)		api_check(L, (n) <= (L->top - L->base))
+#define api_checkvalidindex(L, i)	api_check(L, (i) != niltv(L))
+
+static TValue *index2adr(lua_State *L, int idx)
+{
+  if (idx > 0) {
+    TValue *o = L->base + (idx - 1);
+    return o < L->top ? o : niltv(L);
+  } else if (idx > LUA_REGISTRYINDEX) {
+    api_check(L, idx != 0 && -idx <= L->top - L->base);
+    return L->top + idx;
+  } else if (idx == LUA_GLOBALSINDEX) {
+    TValue *o = &G(L)->tmptv;
+    settabV(L, o, tabref(L->env));
+    return o;
+  } else if (idx == LUA_REGISTRYINDEX) {
+    return registry(L);
+  } else {
+    GCfunc *fn = curr_func(L);
+    api_check(L, fn->c.gct == ~LJ_TFUNC && !isluafunc(fn));
+    if (idx == LUA_ENVIRONINDEX) {
+      TValue *o = &G(L)->tmptv;
+      settabV(L, o, tabref(fn->c.env));
+      return o;
+    } else {
+      idx = LUA_GLOBALSINDEX - idx;
+      return idx <= fn->c.nupvalues ? &fn->c.upvalue[idx-1] : niltv(L);
+    }
+  }
+}
+
+static TValue *stkindex2adr(lua_State *L, int idx)
+{
+  if (idx > 0) {
+    TValue *o = L->base + (idx - 1);
+    return o < L->top ? o : niltv(L);
+  } else {
+    api_check(L, idx != 0 && -idx <= L->top - L->base);
+    return L->top + idx;
+  }
+}
+
+static GCtab *getcurrenv(lua_State *L)
+{
+  GCfunc *fn = curr_func(L);
+  return fn->c.gct == ~LJ_TFUNC ? tabref(fn->c.env) : tabref(L->env);
+}
+
+/* -- Miscellaneous API functions ----------------------------------------- */
+
+LUA_API int lua_status(lua_State *L)
+{
+  return L->status;
+}
+
+LUA_API int lua_checkstack(lua_State *L, int size)
+{
+  if (size > LUAI_MAXCSTACK || (L->top - L->base + size) > LUAI_MAXCSTACK) {
+    return 0;  /* Stack overflow. */
+  } else if (size > 0) {
+    lj_state_checkstack(L, (MSize)size);
+  }
+  return 1;
+}
+
+LUALIB_API void luaL_checkstack(lua_State *L, int size, const char *msg)
+{
+  if (!lua_checkstack(L, size))
+    lj_err_callerv(L, LJ_ERR_STKOVM, msg);
+}
+
+LUA_API void lua_xmove(lua_State *from, lua_State *to, int n)
+{
+  TValue *f, *t;
+  if (from == to) return;
+  api_checknelems(from, n);
+  api_check(from, G(from) == G(to));
+  lj_state_checkstack(to, (MSize)n);
+  f = from->top;
+  t = to->top = to->top + n;
+  while (--n >= 0) copyTV(to, --t, --f);
+  from->top = f;
+}
+
+/* -- Stack manipulation -------------------------------------------------- */
+
+LUA_API int lua_gettop(lua_State *L)
+{
+  return (int)(L->top - L->base);
+}
+
+LUA_API void lua_settop(lua_State *L, int idx)
+{
+  if (idx >= 0) {
+    api_check(L, idx <= tvref(L->maxstack) - L->base);
+    if (L->base + idx > L->top) {
+      if (L->base + idx >= tvref(L->maxstack))
+	lj_state_growstack(L, (MSize)idx - (MSize)(L->top - L->base));
+      do { setnilV(L->top++); } while (L->top < L->base + idx);
+    } else {
+      L->top = L->base + idx;
+    }
+  } else {
+    api_check(L, -(idx+1) <= (L->top - L->base));
+    L->top += idx+1;  /* Shrinks top (idx < 0). */
+  }
+}
+
+LUA_API void lua_remove(lua_State *L, int idx)
+{
+  TValue *p = stkindex2adr(L, idx);
+  api_checkvalidindex(L, p);
+  while (++p < L->top) copyTV(L, p-1, p);
+  L->top--;
+}
+
+LUA_API void lua_insert(lua_State *L, int idx)
+{
+  TValue *q, *p = stkindex2adr(L, idx);
+  api_checkvalidindex(L, p);
+  for (q = L->top; q > p; q--) copyTV(L, q, q-1);
+  copyTV(L, p, L->top);
+}
+
+LUA_API void lua_replace(lua_State *L, int idx)
+{
+  api_checknelems(L, 1);
+  if (idx == LUA_GLOBALSINDEX) {
+    api_check(L, tvistab(L->top-1));
+    /* NOBARRIER: A thread (i.e. L) is never black. */
+    setgcref(L->env, obj2gco(tabV(L->top-1)));
+  } else if (idx == LUA_ENVIRONINDEX) {
+    GCfunc *fn = curr_func(L);
+    if (fn->c.gct != ~LJ_TFUNC)
+      lj_err_msg(L, LJ_ERR_NOENV);
+    api_check(L, tvistab(L->top-1));
+    setgcref(fn->c.env, obj2gco(tabV(L->top-1)));
+    lj_gc_barrier(L, fn, L->top-1);
+  } else {
+    TValue *o = index2adr(L, idx);
+    api_checkvalidindex(L, o);
+    copyTV(L, o, L->top-1);
+    if (idx < LUA_GLOBALSINDEX)  /* Need a barrier for upvalues. */
+      lj_gc_barrier(L, curr_func(L), L->top-1);
+  }
+  L->top--;
+}
+
+LUA_API void lua_pushvalue(lua_State *L, int idx)
+{
+  copyTV(L, L->top, index2adr(L, idx));
+  incr_top(L);
+}
+
+/* -- Stack getters ------------------------------------------------------- */
+
+LUA_API int lua_type(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisnumber(o)) {
+    return LUA_TNUMBER;
+#if LJ_64
+  } else if (tvislightud(o)) {
+    return LUA_TLIGHTUSERDATA;
+#endif
+  } else if (o == niltv(L)) {
+    return LUA_TNONE;
+  } else {  /* Magic internal/external tag conversion. ORDER LJ_T */
+    uint32_t t = ~itype(o);
+#if LJ_64
+    int tt = (int)((U64x(75a06,98042110) >> 4*t) & 15u);
+#else
+    int tt = (int)(((t < 8 ? 0x98042110u : 0x75a06u) >> 4*(t&7)) & 15u);
+#endif
+    lua_assert(tt != LUA_TNIL || tvisnil(o));
+    return tt;
+  }
+}
+
+LUALIB_API void luaL_checktype(lua_State *L, int idx, int tt)
+{
+  if (lua_type(L, idx) != tt)
+    lj_err_argt(L, idx, tt);
+}
+
+LUALIB_API void luaL_checkany(lua_State *L, int idx)
+{
+  if (index2adr(L, idx) == niltv(L))
+    lj_err_arg(L, idx, LJ_ERR_NOVAL);
+}
+
+LUA_API const char *lua_typename(lua_State *L, int t)
+{
+  UNUSED(L);
+  return lj_obj_typename[t+1];
+}
+
+LUA_API int lua_iscfunction(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return tvisfunc(o) && !isluafunc(funcV(o));
+}
+
+LUA_API int lua_isnumber(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  return (tvisnumber(o) || (tvisstr(o) && lj_strscan_number(strV(o), &tmp)));
+}
+
+LUA_API int lua_isstring(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return (tvisstr(o) || tvisnumber(o));
+}
+
+LUA_API int lua_isuserdata(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return (tvisudata(o) || tvislightud(o));
+}
+
+LUA_API int lua_rawequal(lua_State *L, int idx1, int idx2)
+{
+  cTValue *o1 = index2adr(L, idx1);
+  cTValue *o2 = index2adr(L, idx2);
+  return (o1 == niltv(L) || o2 == niltv(L)) ? 0 : lj_obj_equal(o1, o2);
+}
+
+LUA_API int lua_equal(lua_State *L, int idx1, int idx2)
+{
+  cTValue *o1 = index2adr(L, idx1);
+  cTValue *o2 = index2adr(L, idx2);
+  if (tvisint(o1) && tvisint(o2)) {
+    return intV(o1) == intV(o2);
+  } else if (tvisnumber(o1) && tvisnumber(o2)) {
+    return numberVnum(o1) == numberVnum(o2);
+  } else if (itype(o1) != itype(o2)) {
+    return 0;
+  } else if (tvispri(o1)) {
+    return o1 != niltv(L) && o2 != niltv(L);
+#if LJ_64
+  } else if (tvislightud(o1)) {
+    return o1->u64 == o2->u64;
+#endif
+  } else if (gcrefeq(o1->gcr, o2->gcr)) {
+    return 1;
+  } else if (!tvistabud(o1)) {
+    return 0;
+  } else {
+    TValue *base = lj_meta_equal(L, gcV(o1), gcV(o2), 0);
+    if ((uintptr_t)base <= 1) {
+      return (int)(uintptr_t)base;
+    } else {
+      L->top = base+2;
+      lj_vm_call(L, base, 1+1);
+      L->top -= 2;
+      return tvistruecond(L->top+1);
+    }
+  }
+}
+
+LUA_API int lua_lessthan(lua_State *L, int idx1, int idx2)
+{
+  cTValue *o1 = index2adr(L, idx1);
+  cTValue *o2 = index2adr(L, idx2);
+  if (o1 == niltv(L) || o2 == niltv(L)) {
+    return 0;
+  } else if (tvisint(o1) && tvisint(o2)) {
+    return intV(o1) < intV(o2);
+  } else if (tvisnumber(o1) && tvisnumber(o2)) {
+    return numberVnum(o1) < numberVnum(o2);
+  } else {
+    TValue *base = lj_meta_comp(L, o1, o2, 0);
+    if ((uintptr_t)base <= 1) {
+      return (int)(uintptr_t)base;
+    } else {
+      L->top = base+2;
+      lj_vm_call(L, base, 1+1);
+      L->top -= 2;
+      return tvistruecond(L->top+1);
+    }
+  }
+}
+
+LUA_API lua_Number lua_tonumber(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o)))
+    return numberVnum(o);
+  else if (tvisstr(o) && lj_strscan_num(strV(o), &tmp))
+    return numV(&tmp);
+  else
+    return 0;
+}
+
+LUALIB_API lua_Number luaL_checknumber(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o)))
+    return numberVnum(o);
+  else if (!(tvisstr(o) && lj_strscan_num(strV(o), &tmp)))
+    lj_err_argt(L, idx, LUA_TNUMBER);
+  return numV(&tmp);
+}
+
+LUALIB_API lua_Number luaL_optnumber(lua_State *L, int idx, lua_Number def)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o)))
+    return numberVnum(o);
+  else if (tvisnil(o))
+    return def;
+  else if (!(tvisstr(o) && lj_strscan_num(strV(o), &tmp)))
+    lj_err_argt(L, idx, LUA_TNUMBER);
+  return numV(&tmp);
+}
+
+LUA_API lua_Integer lua_tointeger(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp)))
+      return 0;
+    if (tvisint(&tmp))
+      return (lua_Integer)intV(&tmp);
+    n = numV(&tmp);
+  }
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUALIB_API lua_Integer luaL_checkinteger(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp)))
+      lj_err_argt(L, idx, LUA_TNUMBER);
+    if (tvisint(&tmp))
+      return (lua_Integer)intV(&tmp);
+    n = numV(&tmp);
+  }
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUALIB_API lua_Integer luaL_optinteger(lua_State *L, int idx, lua_Integer def)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else if (tvisnil(o)) {
+    return def;
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp)))
+      lj_err_argt(L, idx, LUA_TNUMBER);
+    if (tvisint(&tmp))
+      return (lua_Integer)intV(&tmp);
+    n = numV(&tmp);
+  }
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUA_API int lua_toboolean(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return tvistruecond(o);
+}
+
+LUA_API const char *lua_tolstring(lua_State *L, int idx, size_t *len)
+{
+  TValue *o = index2adr(L, idx);
+  GCstr *s;
+  if (LJ_LIKELY(tvisstr(o))) {
+    s = strV(o);
+  } else if (tvisnumber(o)) {
+    lj_gc_check(L);
+    o = index2adr(L, idx);  /* GC may move the stack. */
+    s = lj_str_fromnumber(L, o);
+    setstrV(L, o, s);
+  } else {
+    if (len != NULL) *len = 0;
+    return NULL;
+  }
+  if (len != NULL) *len = s->len;
+  return strdata(s);
+}
+
+LUALIB_API const char *luaL_checklstring(lua_State *L, int idx, size_t *len)
+{
+  TValue *o = index2adr(L, idx);
+  GCstr *s;
+  if (LJ_LIKELY(tvisstr(o))) {
+    s = strV(o);
+  } else if (tvisnumber(o)) {
+    lj_gc_check(L);
+    o = index2adr(L, idx);  /* GC may move the stack. */
+    s = lj_str_fromnumber(L, o);
+    setstrV(L, o, s);
+  } else {
+    lj_err_argt(L, idx, LUA_TSTRING);
+  }
+  if (len != NULL) *len = s->len;
+  return strdata(s);
+}
+
+LUALIB_API const char *luaL_optlstring(lua_State *L, int idx,
+				       const char *def, size_t *len)
+{
+  TValue *o = index2adr(L, idx);
+  GCstr *s;
+  if (LJ_LIKELY(tvisstr(o))) {
+    s = strV(o);
+  } else if (tvisnil(o)) {
+    if (len != NULL) *len = def ? strlen(def) : 0;
+    return def;
+  } else if (tvisnumber(o)) {
+    lj_gc_check(L);
+    o = index2adr(L, idx);  /* GC may move the stack. */
+    s = lj_str_fromnumber(L, o);
+    setstrV(L, o, s);
+  } else {
+    lj_err_argt(L, idx, LUA_TSTRING);
+  }
+  if (len != NULL) *len = s->len;
+  return strdata(s);
+}
+
+LUALIB_API int luaL_checkoption(lua_State *L, int idx, const char *def,
+				const char *const lst[])
+{
+  ptrdiff_t i;
+  const char *s = lua_tolstring(L, idx, NULL);
+  if (s == NULL && (s = def) == NULL)
+    lj_err_argt(L, idx, LUA_TSTRING);
+  for (i = 0; lst[i]; i++)
+    if (strcmp(lst[i], s) == 0)
+      return (int)i;
+  lj_err_argv(L, idx, LJ_ERR_INVOPTM, s);
+}
+
+LUA_API size_t lua_objlen(lua_State *L, int idx)
+{
+  TValue *o = index2adr(L, idx);
+  if (tvisstr(o)) {
+    return strV(o)->len;
+  } else if (tvistab(o)) {
+    return (size_t)lj_tab_len(tabV(o));
+  } else if (tvisudata(o)) {
+    return udataV(o)->len;
+  } else if (tvisnumber(o)) {
+    GCstr *s = lj_str_fromnumber(L, o);
+    setstrV(L, o, s);
+    return s->len;
+  } else {
+    return 0;
+  }
+}
+
+LUA_API lua_CFunction lua_tocfunction(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisfunc(o)) {
+    BCOp op = bc_op(*mref(funcV(o)->c.pc, BCIns));
+    if (op == BC_FUNCC || op == BC_FUNCCW)
+      return funcV(o)->c.f;
+  }
+  return NULL;
+}
+
+LUA_API void *lua_touserdata(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisudata(o))
+    return uddata(udataV(o));
+  else if (tvislightud(o))
+    return lightudV(o);
+  else
+    return NULL;
+}
+
+LUA_API lua_State *lua_tothread(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return (!tvisthread(o)) ? NULL : threadV(o);
+}
+
+LUA_API const void *lua_topointer(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisudata(o))
+    return uddata(udataV(o));
+  else if (tvislightud(o))
+    return lightudV(o);
+  else if (tviscdata(o))
+    return cdataptr(cdataV(o));
+  else if (tvisgcv(o))
+    return gcV(o);
+  else
+    return NULL;
+}
+
+/* -- Stack setters (object creation) ------------------------------------- */
+
+LUA_API void lua_pushnil(lua_State *L)
+{
+  setnilV(L->top);
+  incr_top(L);
+}
+
+LUA_API void lua_pushnumber(lua_State *L, lua_Number n)
+{
+  setnumV(L->top, n);
+  if (LJ_UNLIKELY(tvisnan(L->top)))
+    setnanV(L->top);  /* Canonicalize injected NaNs. */
+  incr_top(L);
+}
+
+LUA_API void lua_pushinteger(lua_State *L, lua_Integer n)
+{
+  setintptrV(L->top, n);
+  incr_top(L);
+}
+
+LUA_API void lua_pushlstring(lua_State *L, const char *str, size_t len)
+{
+  GCstr *s;
+  lj_gc_check(L);
+  s = lj_str_new(L, str, len);
+  setstrV(L, L->top, s);
+  incr_top(L);
+}
+
+LUA_API void lua_pushstring(lua_State *L, const char *str)
+{
+  if (str == NULL) {
+    setnilV(L->top);
+  } else {
+    GCstr *s;
+    lj_gc_check(L);
+    s = lj_str_newz(L, str);
+    setstrV(L, L->top, s);
+  }
+  incr_top(L);
+}
+
+LUA_API const char *lua_pushvfstring(lua_State *L, const char *fmt,
+				     va_list argp)
+{
+  lj_gc_check(L);
+  return lj_str_pushvf(L, fmt, argp);
+}
+
+LUA_API const char *lua_pushfstring(lua_State *L, const char *fmt, ...)
+{
+  const char *ret;
+  va_list argp;
+  lj_gc_check(L);
+  va_start(argp, fmt);
+  ret = lj_str_pushvf(L, fmt, argp);
+  va_end(argp);
+  return ret;
+}
+
+LUA_API void lua_pushcclosure(lua_State *L, lua_CFunction f, int n)
+{
+  GCfunc *fn;
+  lj_gc_check(L);
+  api_checknelems(L, n);
+  fn = lj_func_newC(L, (MSize)n, getcurrenv(L));
+  fn->c.f = f;
+  L->top -= n;
+  while (n--)
+    copyTV(L, &fn->c.upvalue[n], L->top+n);
+  setfuncV(L, L->top, fn);
+  lua_assert(iswhite(obj2gco(fn)));
+  incr_top(L);
+}
+
+LUA_API void lua_pushboolean(lua_State *L, int b)
+{
+  setboolV(L->top, (b != 0));
+  incr_top(L);
+}
+
+LUA_API void lua_pushlightuserdata(lua_State *L, void *p)
+{
+  setlightudV(L->top, checklightudptr(L, p));
+  incr_top(L);
+}
+
+LUA_API void lua_createtable(lua_State *L, int narray, int nrec)
+{
+  GCtab *t;
+  lj_gc_check(L);
+  t = lj_tab_new(L, (uint32_t)(narray > 0 ? narray+1 : 0), hsize2hbits(nrec));
+  settabV(L, L->top, t);
+  incr_top(L);
+}
+
+LUALIB_API int luaL_newmetatable(lua_State *L, const char *tname)
+{
+  GCtab *regt = tabV(registry(L));
+  TValue *tv = lj_tab_setstr(L, regt, lj_str_newz(L, tname));
+  if (tvisnil(tv)) {
+    GCtab *mt = lj_tab_new(L, 0, 1);
+    settabV(L, tv, mt);
+    settabV(L, L->top++, mt);
+    lj_gc_anybarriert(L, regt);
+    return 1;
+  } else {
+    copyTV(L, L->top++, tv);
+    return 0;
+  }
+}
+
+LUA_API int lua_pushthread(lua_State *L)
+{
+  setthreadV(L, L->top, L);
+  incr_top(L);
+  return (mainthread(G(L)) == L);
+}
+
+LUA_API lua_State *lua_newthread(lua_State *L)
+{
+  lua_State *L1;
+  lj_gc_check(L);
+  L1 = lj_state_new(L);
+  setthreadV(L, L->top, L1);
+  incr_top(L);
+  return L1;
+}
+
+LUA_API void *lua_newuserdata(lua_State *L, size_t size)
+{
+  GCudata *ud;
+  lj_gc_check(L);
+  if (size > LJ_MAX_UDATA)
+    lj_err_msg(L, LJ_ERR_UDATAOV);
+  ud = lj_udata_new(L, (MSize)size, getcurrenv(L));
+  setudataV(L, L->top, ud);
+  incr_top(L);
+  return uddata(ud);
+}
+
+LUA_API void lua_concat(lua_State *L, int n)
+{
+  api_checknelems(L, n);
+  if (n >= 2) {
+    n--;
+    do {
+      TValue *top = lj_meta_cat(L, L->top-1, -n);
+      if (top == NULL) {
+	L->top -= n;
+	break;
+      }
+      n -= (int)(L->top - top);
+      L->top = top+2;
+      lj_vm_call(L, top, 1+1);
+      L->top--;
+      copyTV(L, L->top-1, L->top);
+    } while (--n > 0);
+  } else if (n == 0) {  /* Push empty string. */
+    setstrV(L, L->top, &G(L)->strempty);
+    incr_top(L);
+  }
+  /* else n == 1: nothing to do. */
+}
+
+/* -- Object getters ------------------------------------------------------ */
+
+LUA_API void lua_gettable(lua_State *L, int idx)
+{
+  cTValue *v, *t = index2adr(L, idx);
+  api_checkvalidindex(L, t);
+  v = lj_meta_tget(L, t, L->top-1);
+  if (v == NULL) {
+    L->top += 2;
+    lj_vm_call(L, L->top-2, 1+1);
+    L->top -= 2;
+    v = L->top+1;
+  }
+  copyTV(L, L->top-1, v);
+}
+
+LUA_API void lua_getfield(lua_State *L, int idx, const char *k)
+{
+  cTValue *v, *t = index2adr(L, idx);
+  TValue key;
+  api_checkvalidindex(L, t);
+  setstrV(L, &key, lj_str_newz(L, k));
+  v = lj_meta_tget(L, t, &key);
+  if (v == NULL) {
+    L->top += 2;
+    lj_vm_call(L, L->top-2, 1+1);
+    L->top -= 2;
+    v = L->top+1;
+  }
+  copyTV(L, L->top, v);
+  incr_top(L);
+}
+
+LUA_API void lua_rawget(lua_State *L, int idx)
+{
+  cTValue *t = index2adr(L, idx);
+  api_check(L, tvistab(t));
+  copyTV(L, L->top-1, lj_tab_get(L, tabV(t), L->top-1));
+}
+
+LUA_API void lua_rawgeti(lua_State *L, int idx, int n)
+{
+  cTValue *v, *t = index2adr(L, idx);
+  api_check(L, tvistab(t));
+  v = lj_tab_getint(tabV(t), n);
+  if (v) {
+    copyTV(L, L->top, v);
+  } else {
+    setnilV(L->top);
+  }
+  incr_top(L);
+}
+
+LUA_API int lua_getmetatable(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  GCtab *mt = NULL;
+  if (tvistab(o))
+    mt = tabref(tabV(o)->metatable);
+  else if (tvisudata(o))
+    mt = tabref(udataV(o)->metatable);
+  else
+    mt = tabref(basemt_obj(G(L), o));
+  if (mt == NULL)
+    return 0;
+  settabV(L, L->top, mt);
+  incr_top(L);
+  return 1;
+}
+
+LUALIB_API int luaL_getmetafield(lua_State *L, int idx, const char *field)
+{
+  if (lua_getmetatable(L, idx)) {
+    cTValue *tv = lj_tab_getstr(tabV(L->top-1), lj_str_newz(L, field));
+    if (tv && !tvisnil(tv)) {
+      copyTV(L, L->top-1, tv);
+      return 1;
+    }
+    L->top--;
+  }
+  return 0;
+}
+
+LUA_API void lua_getfenv(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  api_checkvalidindex(L, o);
+  if (tvisfunc(o)) {
+    settabV(L, L->top, tabref(funcV(o)->c.env));
+  } else if (tvisudata(o)) {
+    settabV(L, L->top, tabref(udataV(o)->env));
+  } else if (tvisthread(o)) {
+    settabV(L, L->top, tabref(threadV(o)->env));
+  } else {
+    setnilV(L->top);
+  }
+  incr_top(L);
+}
+
+LUA_API int lua_next(lua_State *L, int idx)
+{
+  cTValue *t = index2adr(L, idx);
+  int more;
+  api_check(L, tvistab(t));
+  more = lj_tab_next(L, tabV(t), L->top-1);
+  if (more) {
+    incr_top(L);  /* Return new key and value slot. */
+  } else {  /* End of traversal. */
+    L->top--;  /* Remove key slot. */
+  }
+  return more;
+}
+
+LUA_API const char *lua_getupvalue(lua_State *L, int idx, int n)
+{
+  TValue *val;
+  const char *name = lj_debug_uvnamev(index2adr(L, idx), (uint32_t)(n-1), &val);
+  if (name) {
+    copyTV(L, L->top, val);
+    incr_top(L);
+  }
+  return name;
+}
+
+LUA_API void *lua_upvalueid(lua_State *L, int idx, int n)
+{
+  GCfunc *fn = funcV(index2adr(L, idx));
+  n--;
+  api_check(L, (uint32_t)n < fn->l.nupvalues);
+  return isluafunc(fn) ? (void *)gcref(fn->l.uvptr[n]) :
+			 (void *)&fn->c.upvalue[n];
+}
+
+LUA_API void lua_upvaluejoin(lua_State *L, int idx1, int n1, int idx2, int n2)
+{
+  GCfunc *fn1 = funcV(index2adr(L, idx1));
+  GCfunc *fn2 = funcV(index2adr(L, idx2));
+  n1--; n2--;
+  api_check(L, isluafunc(fn1) && (uint32_t)n1 < fn1->l.nupvalues);
+  api_check(L, isluafunc(fn2) && (uint32_t)n2 < fn2->l.nupvalues);
+  setgcrefr(fn1->l.uvptr[n1], fn2->l.uvptr[n2]);
+  lj_gc_objbarrier(L, fn1, gcref(fn1->l.uvptr[n1]));
+}
+
+LUALIB_API void *luaL_checkudata(lua_State *L, int idx, const char *tname)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisudata(o)) {
+    GCudata *ud = udataV(o);
+    cTValue *tv = lj_tab_getstr(tabV(registry(L)), lj_str_newz(L, tname));
+    if (tv && tvistab(tv) && tabV(tv) == tabref(ud->metatable))
+      return uddata(ud);
+  }
+  lj_err_argtype(L, idx, tname);
+  return NULL;  /* unreachable */
+}
+
+/* -- Object setters ------------------------------------------------------ */
+
+LUA_API void lua_settable(lua_State *L, int idx)
+{
+  TValue *o;
+  cTValue *t = index2adr(L, idx);
+  api_checknelems(L, 2);
+  api_checkvalidindex(L, t);
+  o = lj_meta_tset(L, t, L->top-2);
+  if (o) {
+    /* NOBARRIER: lj_meta_tset ensures the table is not black. */
+    copyTV(L, o, L->top-1);
+    L->top -= 2;
+  } else {
+    L->top += 3;
+    copyTV(L, L->top-1, L->top-6);
+    lj_vm_call(L, L->top-3, 0+1);
+    L->top -= 3;
+  }
+}
+
+LUA_API void lua_setfield(lua_State *L, int idx, const char *k)
+{
+  TValue *o;
+  TValue key;
+  cTValue *t = index2adr(L, idx);
+  api_checknelems(L, 1);
+  api_checkvalidindex(L, t);
+  setstrV(L, &key, lj_str_newz(L, k));
+  o = lj_meta_tset(L, t, &key);
+  if (o) {
+    L->top--;
+    /* NOBARRIER: lj_meta_tset ensures the table is not black. */
+    copyTV(L, o, L->top);
+  } else {
+    L->top += 3;
+    copyTV(L, L->top-1, L->top-6);
+    lj_vm_call(L, L->top-3, 0+1);
+    L->top -= 2;
+  }
+}
+
+LUA_API void lua_rawset(lua_State *L, int idx)
+{
+  GCtab *t = tabV(index2adr(L, idx));
+  TValue *dst, *key;
+  api_checknelems(L, 2);
+  key = L->top-2;
+  dst = lj_tab_set(L, t, key);
+  copyTV(L, dst, key+1);
+  lj_gc_anybarriert(L, t);
+  L->top = key;
+}
+
+LUA_API void lua_rawseti(lua_State *L, int idx, int n)
+{
+  GCtab *t = tabV(index2adr(L, idx));
+  TValue *dst, *src;
+  api_checknelems(L, 1);
+  dst = lj_tab_setint(L, t, n);
+  src = L->top-1;
+  copyTV(L, dst, src);
+  lj_gc_barriert(L, t, dst);
+  L->top = src;
+}
+
+LUA_API int lua_setmetatable(lua_State *L, int idx)
+{
+  global_State *g;
+  GCtab *mt;
+  cTValue *o = index2adr(L, idx);
+  api_checknelems(L, 1);
+  api_checkvalidindex(L, o);
+  if (tvisnil(L->top-1)) {
+    mt = NULL;
+  } else {
+    api_check(L, tvistab(L->top-1));
+    mt = tabV(L->top-1);
+  }
+  g = G(L);
+  if (tvistab(o)) {
+    setgcref(tabV(o)->metatable, obj2gco(mt));
+    if (mt)
+      lj_gc_objbarriert(L, tabV(o), mt);
+  } else if (tvisudata(o)) {
+    setgcref(udataV(o)->metatable, obj2gco(mt));
+    if (mt)
+      lj_gc_objbarrier(L, udataV(o), mt);
+  } else {
+    /* Flush cache, since traces specialize to basemt. But not during __gc. */
+    if (lj_trace_flushall(L))
+      lj_err_caller(L, LJ_ERR_NOGCMM);
+    if (tvisbool(o)) {
+      /* NOBARRIER: basemt is a GC root. */
+      setgcref(basemt_it(g, LJ_TTRUE), obj2gco(mt));
+      setgcref(basemt_it(g, LJ_TFALSE), obj2gco(mt));
+    } else {
+      /* NOBARRIER: basemt is a GC root. */
+      setgcref(basemt_obj(g, o), obj2gco(mt));
+    }
+  }
+  L->top--;
+  return 1;
+}
+
+LUA_API int lua_setfenv(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  GCtab *t;
+  api_checknelems(L, 1);
+  api_checkvalidindex(L, o);
+  api_check(L, tvistab(L->top-1));
+  t = tabV(L->top-1);
+  if (tvisfunc(o)) {
+    setgcref(funcV(o)->c.env, obj2gco(t));
+  } else if (tvisudata(o)) {
+    setgcref(udataV(o)->env, obj2gco(t));
+  } else if (tvisthread(o)) {
+    setgcref(threadV(o)->env, obj2gco(t));
+  } else {
+    L->top--;
+    return 0;
+  }
+  lj_gc_objbarrier(L, gcV(o), t);
+  L->top--;
+  return 1;
+}
+
+LUA_API const char *lua_setupvalue(lua_State *L, int idx, int n)
+{
+  cTValue *f = index2adr(L, idx);
+  TValue *val;
+  const char *name;
+  api_checknelems(L, 1);
+  name = lj_debug_uvnamev(f, (uint32_t)(n-1), &val);
+  if (name) {
+    L->top--;
+    copyTV(L, val, L->top);
+    lj_gc_barrier(L, funcV(f), L->top);
+  }
+  return name;
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+LUA_API void lua_call(lua_State *L, int nargs, int nresults)
+{
+  api_check(L, L->status == 0 || L->status == LUA_ERRERR);
+  api_checknelems(L, nargs+1);
+  lj_vm_call(L, L->top - nargs, nresults+1);
+}
+
+LUA_API int lua_pcall(lua_State *L, int nargs, int nresults, int errfunc)
+{
+  global_State *g = G(L);
+  uint8_t oldh = hook_save(g);
+  ptrdiff_t ef;
+  int status;
+  api_check(L, L->status == 0 || L->status == LUA_ERRERR);
+  api_checknelems(L, nargs+1);
+  if (errfunc == 0) {
+    ef = 0;
+  } else {
+    cTValue *o = stkindex2adr(L, errfunc);
+    api_checkvalidindex(L, o);
+    ef = savestack(L, o);
+  }
+  status = lj_vm_pcall(L, L->top - nargs, nresults+1, ef);
+  if (status) hook_restore(g, oldh);
+  return status;
+}
+
+static TValue *cpcall(lua_State *L, lua_CFunction func, void *ud)
+{
+  GCfunc *fn = lj_func_newC(L, 0, getcurrenv(L));
+  fn->c.f = func;
+  setfuncV(L, L->top, fn);
+  setlightudV(L->top+1, checklightudptr(L, ud));
+  cframe_nres(L->cframe) = 1+0;  /* Zero results. */
+  L->top += 2;
+  return L->top-1;  /* Now call the newly allocated C function. */
+}
+
+LUA_API int lua_cpcall(lua_State *L, lua_CFunction func, void *ud)
+{
+  global_State *g = G(L);
+  uint8_t oldh = hook_save(g);
+  int status;
+  api_check(L, L->status == 0 || L->status == LUA_ERRERR);
+  status = lj_vm_cpcall(L, func, ud, cpcall);
+  if (status) hook_restore(g, oldh);
+  return status;
+}
+
+LUALIB_API int luaL_callmeta(lua_State *L, int idx, const char *field)
+{
+  if (luaL_getmetafield(L, idx, field)) {
+    TValue *base = L->top--;
+    copyTV(L, base, index2adr(L, idx));
+    L->top = base+1;
+    lj_vm_call(L, base, 1+1);
+    return 1;
+  }
+  return 0;
+}
+
+/* -- Coroutine yield and resume ------------------------------------------ */
+
+LUA_API int lua_yield(lua_State *L, int nresults)
+{
+  void *cf = L->cframe;
+  global_State *g = G(L);
+  if (cframe_canyield(cf)) {
+    cf = cframe_raw(cf);
+    if (!hook_active(g)) {  /* Regular yield: move results down if needed. */
+      cTValue *f = L->top - nresults;
+      if (f > L->base) {
+	TValue *t = L->base;
+	while (--nresults >= 0) copyTV(L, t++, f++);
+	L->top = t;
+      }
+      L->cframe = NULL;
+      L->status = LUA_YIELD;
+      return -1;
+    } else {  /* Yield from hook: add a pseudo-frame. */
+      TValue *top = L->top;
+      hook_leave(g);
+      top->u64 = cframe_multres(cf);
+      setcont(top+1, lj_cont_hook);
+      setframe_pc(top+1, cframe_pc(cf)-1);
+      setframe_gc(top+2, obj2gco(L));
+      setframe_ftsz(top+2, (int)((char *)(top+3)-(char *)L->base)+FRAME_CONT);
+      L->top = L->base = top+3;
+#if LJ_TARGET_X64
+      lj_err_throw(L, LUA_YIELD);
+#else
+      L->cframe = NULL;
+      L->status = LUA_YIELD;
+      lj_vm_unwind_c(cf, LUA_YIELD);
+#endif
+    }
+  }
+  lj_err_msg(L, LJ_ERR_CYIELD);
+  return 0;  /* unreachable */
+}
+
+LUA_API int lua_resume(lua_State *L, int nargs)
+{
+  if (L->cframe == NULL && L->status <= LUA_YIELD)
+    return lj_vm_resume(L, L->top - nargs, 0, 0);
+  L->top = L->base;
+  setstrV(L, L->top, lj_err_str(L, LJ_ERR_COSUSP));
+  incr_top(L);
+  return LUA_ERRRUN;
+}
+
+/* -- GC and memory management -------------------------------------------- */
+
+LUA_API int lua_gc(lua_State *L, int what, int data)
+{
+  global_State *g = G(L);
+  int res = 0;
+  switch (what) {
+  case LUA_GCSTOP:
+    g->gc.threshold = LJ_MAX_MEM;
+    break;
+  case LUA_GCRESTART:
+    g->gc.threshold = data == -1 ? (g->gc.total/100)*g->gc.pause : g->gc.total;
+    break;
+  case LUA_GCCOLLECT:
+    lj_gc_fullgc(L);
+    break;
+  case LUA_GCCOUNT:
+    res = (int)(g->gc.total >> 10);
+    break;
+  case LUA_GCCOUNTB:
+    res = (int)(g->gc.total & 0x3ff);
+    break;
+  case LUA_GCSTEP: {
+    MSize a = (MSize)data << 10;
+    g->gc.threshold = (a <= g->gc.total) ? (g->gc.total - a) : 0;
+    while (g->gc.total >= g->gc.threshold)
+      if (lj_gc_step(L) > 0) {
+	res = 1;
+	break;
+      }
+    break;
+  }
+  case LUA_GCSETPAUSE:
+    res = (int)(g->gc.pause);
+    g->gc.pause = (MSize)data;
+    break;
+  case LUA_GCSETSTEPMUL:
+    res = (int)(g->gc.stepmul);
+    g->gc.stepmul = (MSize)data;
+    break;
+  default:
+    res = -1;  /* Invalid option. */
+  }
+  return res;
+}
+
+LUA_API lua_Alloc lua_getallocf(lua_State *L, void **ud)
+{
+  global_State *g = G(L);
+  if (ud) *ud = g->allocd;
+  return g->allocf;
+}
+
+LUA_API void lua_setallocf(lua_State *L, lua_Alloc f, void *ud)
+{
+  global_State *g = G(L);
+  g->allocd = ud;
+  g->allocf = f;
+}
+
diff --git a/lib/luajit/src/lj_arch.h b/lib/luajit/src/lj_arch.h
new file mode 100644
index 00000000..0196eedc
--- /dev/null
+++ b/lib/luajit/src/lj_arch.h
@@ -0,0 +1,426 @@
+/*
+** Target architecture selection.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_ARCH_H
+#define _LJ_ARCH_H
+
+#include "lua.h"
+
+/* Target endianess. */
+#define LUAJIT_LE	0
+#define LUAJIT_BE	1
+
+/* Target architectures. */
+#define LUAJIT_ARCH_X86		1
+#define LUAJIT_ARCH_x86		1
+#define LUAJIT_ARCH_X64		2
+#define LUAJIT_ARCH_x64		2
+#define LUAJIT_ARCH_ARM		3
+#define LUAJIT_ARCH_arm		3
+#define LUAJIT_ARCH_PPC		4
+#define LUAJIT_ARCH_ppc		4
+#define LUAJIT_ARCH_PPCSPE	5
+#define LUAJIT_ARCH_ppcspe	5
+#define LUAJIT_ARCH_MIPS	6
+#define LUAJIT_ARCH_mips	6
+
+/* Target OS. */
+#define LUAJIT_OS_OTHER		0
+#define LUAJIT_OS_WINDOWS	1
+#define LUAJIT_OS_LINUX		2
+#define LUAJIT_OS_OSX		3
+#define LUAJIT_OS_BSD		4
+#define LUAJIT_OS_POSIX		5
+
+/* Select native target if no target defined. */
+#ifndef LUAJIT_TARGET
+
+#if defined(__i386) || defined(__i386__) || defined(_M_IX86)
+#define LUAJIT_TARGET	LUAJIT_ARCH_X86
+#elif defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
+#define LUAJIT_TARGET	LUAJIT_ARCH_X64
+#elif defined(__arm__) || defined(__arm) || defined(__ARM__) || defined(__ARM)
+#define LUAJIT_TARGET	LUAJIT_ARCH_ARM
+#elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
+#ifdef __NO_FPRS__
+#define LUAJIT_TARGET	LUAJIT_ARCH_PPCSPE
+#else
+#define LUAJIT_TARGET	LUAJIT_ARCH_PPC
+#endif
+#elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
+#define LUAJIT_TARGET	LUAJIT_ARCH_MIPS
+#else
+#error "No support for this architecture (yet)"
+#endif
+
+#endif
+
+/* Select native OS if no target OS defined. */
+#ifndef LUAJIT_OS
+
+#if defined(_WIN32) && !defined(_XBOX_VER)
+#define LUAJIT_OS	LUAJIT_OS_WINDOWS
+#elif defined(__linux__)
+#define LUAJIT_OS	LUAJIT_OS_LINUX
+#elif defined(__MACH__) && defined(__APPLE__)
+#define LUAJIT_OS	LUAJIT_OS_OSX
+#elif (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+       defined(__NetBSD__) || defined(__OpenBSD__)) && !defined(__ORBIS__)
+#define LUAJIT_OS	LUAJIT_OS_BSD
+#elif (defined(__sun__) && defined(__svr4__)) || defined(__CYGWIN__)
+#define LUAJIT_OS	LUAJIT_OS_POSIX
+#else
+#define LUAJIT_OS	LUAJIT_OS_OTHER
+#endif
+
+#endif
+
+/* Set target OS properties. */
+#if LUAJIT_OS == LUAJIT_OS_WINDOWS
+#define LJ_OS_NAME	"Windows"
+#elif LUAJIT_OS == LUAJIT_OS_LINUX
+#define LJ_OS_NAME	"Linux"
+#elif LUAJIT_OS == LUAJIT_OS_OSX
+#define LJ_OS_NAME	"OSX"
+#elif LUAJIT_OS == LUAJIT_OS_BSD
+#define LJ_OS_NAME	"BSD"
+#elif LUAJIT_OS == LUAJIT_OS_POSIX
+#define LJ_OS_NAME	"POSIX"
+#else
+#define LJ_OS_NAME	"Other"
+#endif
+
+#define LJ_TARGET_WINDOWS	(LUAJIT_OS == LUAJIT_OS_WINDOWS)
+#define LJ_TARGET_LINUX		(LUAJIT_OS == LUAJIT_OS_LINUX)
+#define LJ_TARGET_OSX		(LUAJIT_OS == LUAJIT_OS_OSX)
+#define LJ_TARGET_IOS		(LJ_TARGET_OSX && LUAJIT_TARGET == LUAJIT_ARCH_ARM)
+#define LJ_TARGET_POSIX		(LUAJIT_OS > LUAJIT_OS_WINDOWS)
+#define LJ_TARGET_DLOPEN	LJ_TARGET_POSIX
+
+#ifdef __CELLOS_LV2__
+#define LJ_TARGET_PS3		1
+#define LJ_TARGET_CONSOLE	1
+#endif
+
+#ifdef __ORBIS__
+#define LJ_TARGET_PS4		1
+#define LJ_TARGET_CONSOLE	1
+#undef NULL
+#define NULL ((void*)0)
+#endif
+
+#if _XBOX_VER >= 200
+#define LJ_TARGET_XBOX360	1
+#define LJ_TARGET_CONSOLE	1
+#endif
+
+#define LJ_NUMMODE_SINGLE	0	/* Single-number mode only. */
+#define LJ_NUMMODE_SINGLE_DUAL	1	/* Default to single-number mode. */
+#define LJ_NUMMODE_DUAL		2	/* Dual-number mode only. */
+#define LJ_NUMMODE_DUAL_SINGLE	3	/* Default to dual-number mode. */
+
+/* Set target architecture properties. */
+#if LUAJIT_TARGET == LUAJIT_ARCH_X86
+
+#define LJ_ARCH_NAME		"x86"
+#define LJ_ARCH_BITS		32
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#if LJ_TARGET_WINDOWS || __CYGWIN__
+#define LJ_ABI_WIN		1
+#else
+#define LJ_ABI_WIN		0
+#endif
+#define LJ_TARGET_X86		1
+#define LJ_TARGET_X86ORX64	1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNALIGNED	1
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE_DUAL
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_X64
+
+#define LJ_ARCH_NAME		"x64"
+#define LJ_ARCH_BITS		64
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#define LJ_ABI_WIN		LJ_TARGET_WINDOWS
+#define LJ_TARGET_X64		1
+#define LJ_TARGET_X86ORX64	1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_JUMPRANGE	31	/* +-2^31 = +-2GB */
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNALIGNED	1
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE_DUAL
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_ARM
+
+#define LJ_ARCH_NAME		"arm"
+#define LJ_ARCH_BITS		32
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
+#define LJ_ARCH_HASFPU		0
+#endif
+#if !defined(LJ_ABI_SOFTFP) && !__ARM_PCS_VFP
+#define LJ_ABI_SOFTFP		1
+#endif
+#define LJ_ABI_EABI		1
+#define LJ_TARGET_ARM		1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
+#define LJ_TARGET_MASKSHIFT	0
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	2	/* Want only IR_BROR. */
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
+
+#if __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__
+#define LJ_ARCH_VERSION		70
+#elif __ARM_ARCH_6T2__
+#define LJ_ARCH_VERSION		61
+#elif __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6K__ || __ARM_ARCH_6Z__ || __ARM_ARCH_6ZK__
+#define LJ_ARCH_VERSION		60
+#else
+#define LJ_ARCH_VERSION		50
+#endif
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
+
+#define LJ_ARCH_NAME		"ppc"
+#if _LP64
+#define LJ_ARCH_BITS		64
+#else
+#define LJ_ARCH_BITS		32
+#endif
+#define LJ_ARCH_ENDIAN		LUAJIT_BE
+#define LJ_TARGET_PPC		1
+#define LJ_TARGET_EHRETREG	3
+#define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
+#define LJ_TARGET_MASKSHIFT	0
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	1	/* Want only IR_BROL. */
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL_SINGLE
+
+#if _ARCH_PWR7
+#define LJ_ARCH_VERSION		70
+#elif _ARCH_PWR6
+#define LJ_ARCH_VERSION		60
+#elif _ARCH_PWR5X
+#define LJ_ARCH_VERSION		51
+#elif _ARCH_PWR5
+#define LJ_ARCH_VERSION		50
+#elif _ARCH_PWR4
+#define LJ_ARCH_VERSION		40
+#else
+#define LJ_ARCH_VERSION		0
+#endif
+#if __PPC64__ || __powerpc64__ || LJ_TARGET_CONSOLE
+#define LJ_ARCH_PPC64		1
+#define LJ_ARCH_NOFFI		1
+#endif
+#if _ARCH_PPCSQ
+#define LJ_ARCH_SQRT		1
+#endif
+#if _ARCH_PWR5X
+#define LJ_ARCH_ROUND		1
+#endif
+#if __PPU__
+#define LJ_ARCH_CELL		1
+#endif
+#if LJ_TARGET_XBOX360
+#define LJ_ARCH_XENON		1
+#endif
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
+
+#define LJ_ARCH_NAME		"ppcspe"
+#define LJ_ARCH_BITS		32
+#define LJ_ARCH_ENDIAN		LUAJIT_BE
+#ifndef LJ_ABI_SOFTFP
+#define LJ_ABI_SOFTFP		1
+#endif
+#define LJ_ABI_EABI		1
+#define LJ_TARGET_PPCSPE	1
+#define LJ_TARGET_EHRETREG	3
+#define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
+#define LJ_TARGET_MASKSHIFT	0
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	1	/* Want only IR_BROL. */
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE
+#define LJ_ARCH_NOFFI		1	/* NYI: comparisons, calls. */
+#define LJ_ARCH_NOJIT		1
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS
+
+#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
+#define LJ_ARCH_NAME		"mipsel"
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#else
+#define LJ_ARCH_NAME		"mips"
+#define LJ_ARCH_ENDIAN		LUAJIT_BE
+#endif
+#define LJ_ARCH_BITS		32
+#define LJ_TARGET_MIPS		1
+#define LJ_TARGET_EHRETREG	4
+#define LJ_TARGET_JUMPRANGE	27	/* 2*2^27 = 256MB-aligned region */
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	2	/* Want only IR_BROR. */
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE
+
+#if _MIPS_ARCH_MIPS32R2
+#define LJ_ARCH_VERSION		20
+#else
+#define LJ_ARCH_VERSION		10
+#endif
+
+#else
+#error "No target architecture defined"
+#endif
+
+#ifndef LJ_PAGESIZE
+#define LJ_PAGESIZE		4096
+#endif
+
+/* Check for minimum required compiler versions. */
+#if defined(__GNUC__)
+#if LJ_TARGET_X86
+#if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
+#error "Need at least GCC 3.4 or newer"
+#endif
+#elif LJ_TARGET_X64
+#if __GNUC__ < 4
+#error "Need at least GCC 4.0 or newer"
+#endif
+#elif LJ_TARGET_ARM
+#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
+#error "Need at least GCC 4.2 or newer"
+#endif
+#elif !LJ_TARGET_PS3
+#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
+#error "Need at least GCC 4.3 or newer"
+#endif
+#endif
+#endif
+
+/* Check target-specific constraints. */
+#ifndef _BUILDVM_H
+#if LJ_TARGET_X64
+#if __USING_SJLJ_EXCEPTIONS__
+#error "Need a C compiler with native exception handling on x64"
+#endif
+#elif LJ_TARGET_ARM
+#if defined(__ARMEB__)
+#error "No support for big-endian ARM"
+#endif
+#if __ARM_ARCH_6M__ || __ARM_ARCH_7M__ || __ARM_ARCH_7EM__
+#error "No support for Cortex-M CPUs"
+#endif
+#if !(__ARM_EABI__ || LJ_TARGET_IOS)
+#error "Only ARM EABI or iOS 3.0+ ABI is supported"
+#endif
+#elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
+#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
+#error "No support for PowerPC CPUs without double-precision FPU"
+#endif
+#if defined(_LITTLE_ENDIAN)
+#error "No support for little-endian PowerPC"
+#endif
+#if defined(_LP64)
+#error "No support for PowerPC 64 bit mode"
+#endif
+#elif LJ_TARGET_MIPS
+#if defined(__mips_soft_float)
+#error "No support for MIPS CPUs without FPU"
+#endif
+#endif
+#endif
+
+/* Enable or disable the dual-number mode for the VM. */
+#if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
+    (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
+#error "No support for this number mode on this architecture"
+#endif
+#if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
+    (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
+    (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
+#define LJ_DUALNUM		1
+#else
+#define LJ_DUALNUM		0
+#endif
+
+#if LJ_TARGET_IOS || LJ_TARGET_CONSOLE
+/* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
+/* Ditto for the consoles. Complain to Sony or MS, not me. */
+#ifndef LUAJIT_ENABLE_JIT
+#define LJ_OS_NOJIT		1
+#endif
+#endif
+
+/* Disable or enable the JIT compiler. */
+#if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT)
+#define LJ_HASJIT		0
+#else
+#define LJ_HASJIT		1
+#endif
+
+/* Disable or enable the FFI extension. */
+#if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
+#define LJ_HASFFI		0
+#else
+#define LJ_HASFFI		1
+#endif
+
+#ifndef LJ_ARCH_HASFPU
+#define LJ_ARCH_HASFPU		1
+#endif
+#ifndef LJ_ABI_SOFTFP
+#define LJ_ABI_SOFTFP		0
+#endif
+#define LJ_SOFTFP		(!LJ_ARCH_HASFPU)
+
+#if LJ_ARCH_ENDIAN == LUAJIT_BE
+#define LJ_LE			0
+#define LJ_BE			1
+#define LJ_ENDIAN_SELECT(le, be)	be
+#define LJ_ENDIAN_LOHI(lo, hi)		hi lo
+#else
+#define LJ_LE			1
+#define LJ_BE			0
+#define LJ_ENDIAN_SELECT(le, be)	le
+#define LJ_ENDIAN_LOHI(lo, hi)		lo hi
+#endif
+
+#if LJ_ARCH_BITS == 32
+#define LJ_32			1
+#define LJ_64			0
+#else
+#define LJ_32			0
+#define LJ_64			1
+#endif
+
+#ifndef LJ_TARGET_UNALIGNED
+#define LJ_TARGET_UNALIGNED	0
+#endif
+
+/* Various workarounds for embedded operating systems. */
+#if (defined(__ANDROID__) && !defined(LJ_TARGET_X86ORX64)) || defined(__symbian__) || LJ_TARGET_XBOX360
+#define LUAJIT_NO_LOG2
+#endif
+#if defined(__symbian__)
+#define LUAJIT_NO_EXP2
+#endif
+
+#if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3
+#define LJ_NO_UNWIND		1
+#endif
+
+/* Compatibility with Lua 5.1 vs. 5.2. */
+#ifdef LUAJIT_ENABLE_LUA52COMPAT
+#define LJ_52			1
+#else
+#define LJ_52			0
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_asm.c b/lib/luajit/src/lj_asm.c
new file mode 100644
index 00000000..264649ae
--- /dev/null
+++ b/lib/luajit/src/lj_asm.c
@@ -0,0 +1,1914 @@
+/*
+** IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_asm_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_mcode.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_asm.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_target.h"
+
+#ifdef LUA_USE_ASSERT
+#include <stdio.h>
+#endif
+
+/* -- Assembler state and common macros ----------------------------------- */
+
+/* Assembler state. */
+typedef struct ASMState {
+  RegCost cost[RID_MAX];  /* Reference and blended allocation cost for regs. */
+
+  MCode *mcp;		/* Current MCode pointer (grows down). */
+  MCode *mclim;		/* Lower limit for MCode memory + red zone. */
+#ifdef LUA_USE_ASSERT
+  MCode *mcp_prev;	/* Red zone overflow check. */
+#endif
+
+  IRIns *ir;		/* Copy of pointer to IR instructions/constants. */
+  jit_State *J;		/* JIT compiler state. */
+
+#if LJ_TARGET_X86ORX64
+  x86ModRM mrm;		/* Fused x86 address operand. */
+#endif
+
+  RegSet freeset;	/* Set of free registers. */
+  RegSet modset;	/* Set of registers modified inside the loop. */
+  RegSet weakset;	/* Set of weakly referenced registers. */
+  RegSet phiset;	/* Set of PHI registers. */
+
+  uint32_t flags;	/* Copy of JIT compiler flags. */
+  int loopinv;		/* Loop branch inversion (0:no, 1:yes, 2:yes+CC_P). */
+
+  int32_t evenspill;	/* Next even spill slot. */
+  int32_t oddspill;	/* Next odd spill slot (or 0). */
+
+  IRRef curins;		/* Reference of current instruction. */
+  IRRef stopins;	/* Stop assembly before hitting this instruction. */
+  IRRef orignins;	/* Original T->nins. */
+
+  IRRef snapref;	/* Current snapshot is active after this reference. */
+  IRRef snaprename;	/* Rename highwater mark for snapshot check. */
+  SnapNo snapno;	/* Current snapshot number. */
+  SnapNo loopsnapno;	/* Loop snapshot number. */
+
+  IRRef fuseref;	/* Fusion limit (loopref, 0 or FUSE_DISABLED). */
+  IRRef sectref;	/* Section base reference (loopref or 0). */
+  IRRef loopref;	/* Reference of LOOP instruction (or 0). */
+
+  BCReg topslot;	/* Number of slots for stack check (unless 0). */
+  int32_t gcsteps;	/* Accumulated number of GC steps (per section). */
+
+  GCtrace *T;		/* Trace to assemble. */
+  GCtrace *parent;	/* Parent trace (or NULL). */
+
+  MCode *mcbot;		/* Bottom of reserved MCode. */
+  MCode *mctop;		/* Top of generated MCode. */
+  MCode *mcloop;	/* Pointer to loop MCode (or NULL). */
+  MCode *invmcp;	/* Points to invertible loop branch (or NULL). */
+  MCode *flagmcp;	/* Pending opportunity to merge flag setting ins. */
+  MCode *realign;	/* Realign loop if not NULL. */
+
+#ifdef RID_NUM_KREF
+  int32_t krefk[RID_NUM_KREF];
+#endif
+  IRRef1 phireg[RID_MAX];  /* PHI register references. */
+  uint16_t parentmap[LJ_MAX_JSLOTS];  /* Parent instruction to RegSP map. */
+} ASMState;
+
+#define IR(ref)			(&as->ir[(ref)])
+
+#define ASMREF_TMP1		REF_TRUE	/* Temp. register. */
+#define ASMREF_TMP2		REF_FALSE	/* Temp. register. */
+#define ASMREF_L		REF_NIL		/* Stores register for L. */
+
+/* Check for variant to invariant references. */
+#define iscrossref(as, ref)	((ref) < as->sectref)
+
+/* Inhibit memory op fusion from variant to invariant references. */
+#define FUSE_DISABLED		(~(IRRef)0)
+#define mayfuse(as, ref)	((ref) > as->fuseref)
+#define neverfuse(as)		(as->fuseref == FUSE_DISABLED)
+#define canfuse(as, ir)		(!neverfuse(as) && !irt_isphi((ir)->t))
+#define opisfusableload(o) \
+  ((o) == IR_ALOAD || (o) == IR_HLOAD || (o) == IR_ULOAD || \
+   (o) == IR_FLOAD || (o) == IR_XLOAD || (o) == IR_SLOAD || (o) == IR_VLOAD)
+
+/* Sparse limit checks using a red zone before the actual limit. */
+#define MCLIM_REDZONE	64
+
+static LJ_NORET LJ_NOINLINE void asm_mclimit(ASMState *as)
+{
+  lj_mcode_limiterr(as->J, (size_t)(as->mctop - as->mcp + 4*MCLIM_REDZONE));
+}
+
+static LJ_AINLINE void checkmclim(ASMState *as)
+{
+#ifdef LUA_USE_ASSERT
+  if (as->mcp + MCLIM_REDZONE < as->mcp_prev) {
+    IRIns *ir = IR(as->curins+1);
+    fprintf(stderr, "RED ZONE OVERFLOW: %p IR %04d  %02d %04d %04d\n", as->mcp,
+	    as->curins+1-REF_BIAS, ir->o, ir->op1-REF_BIAS, ir->op2-REF_BIAS);
+    lua_assert(0);
+  }
+#endif
+  if (LJ_UNLIKELY(as->mcp < as->mclim)) asm_mclimit(as);
+#ifdef LUA_USE_ASSERT
+  as->mcp_prev = as->mcp;
+#endif
+}
+
+#ifdef RID_NUM_KREF
+#define ra_iskref(ref)		((ref) < RID_NUM_KREF)
+#define ra_krefreg(ref)		((Reg)(RID_MIN_KREF + (Reg)(ref)))
+#define ra_krefk(as, ref)	(as->krefk[(ref)])
+
+static LJ_AINLINE void ra_setkref(ASMState *as, Reg r, int32_t k)
+{
+  IRRef ref = (IRRef)(r - RID_MIN_KREF);
+  as->krefk[ref] = k;
+  as->cost[r] = REGCOST(ref, ref);
+}
+
+#else
+#define ra_iskref(ref)		0
+#define ra_krefreg(ref)		RID_MIN_GPR
+#define ra_krefk(as, ref)	0
+#endif
+
+/* Arch-specific field offsets. */
+static const uint8_t field_ofs[IRFL__MAX+1] = {
+#define FLOFS(name, ofs)	(uint8_t)(ofs),
+IRFLDEF(FLOFS)
+#undef FLOFS
+  0
+};
+
+/* -- Target-specific instruction emitter --------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+#include "lj_emit_x86.h"
+#elif LJ_TARGET_ARM
+#include "lj_emit_arm.h"
+#elif LJ_TARGET_PPC
+#include "lj_emit_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "lj_emit_mips.h"
+#else
+#error "Missing instruction emitter for target CPU"
+#endif
+
+/* -- Register allocator debugging ---------------------------------------- */
+
+/* #define LUAJIT_DEBUG_RA */
+
+#ifdef LUAJIT_DEBUG_RA
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#define RIDNAME(name)	#name,
+static const char *const ra_regname[] = {
+  GPRDEF(RIDNAME)
+  FPRDEF(RIDNAME)
+  VRIDDEF(RIDNAME)
+  NULL
+};
+#undef RIDNAME
+
+static char ra_dbg_buf[65536];
+static char *ra_dbg_p;
+static char *ra_dbg_merge;
+static MCode *ra_dbg_mcp;
+
+static void ra_dstart(void)
+{
+  ra_dbg_p = ra_dbg_buf;
+  ra_dbg_merge = NULL;
+  ra_dbg_mcp = NULL;
+}
+
+static void ra_dflush(void)
+{
+  fwrite(ra_dbg_buf, 1, (size_t)(ra_dbg_p-ra_dbg_buf), stdout);
+  ra_dstart();
+}
+
+static void ra_dprintf(ASMState *as, const char *fmt, ...)
+{
+  char *p;
+  va_list argp;
+  va_start(argp, fmt);
+  p = ra_dbg_mcp == as->mcp ? ra_dbg_merge : ra_dbg_p;
+  ra_dbg_mcp = NULL;
+  p += sprintf(p, "%08x  \e[36m%04d ", (uintptr_t)as->mcp, as->curins-REF_BIAS);
+  for (;;) {
+    const char *e = strchr(fmt, '$');
+    if (e == NULL) break;
+    memcpy(p, fmt, (size_t)(e-fmt));
+    p += e-fmt;
+    if (e[1] == 'r') {
+      Reg r = va_arg(argp, Reg) & RID_MASK;
+      if (r <= RID_MAX) {
+	const char *q;
+	for (q = ra_regname[r]; *q; q++)
+	  *p++ = *q >= 'A' && *q <= 'Z' ? *q + 0x20 : *q;
+      } else {
+	*p++ = '?';
+	lua_assert(0);
+      }
+    } else if (e[1] == 'f' || e[1] == 'i') {
+      IRRef ref;
+      if (e[1] == 'f')
+	ref = va_arg(argp, IRRef);
+      else
+	ref = va_arg(argp, IRIns *) - as->ir;
+      if (ref >= REF_BIAS)
+	p += sprintf(p, "%04d", ref - REF_BIAS);
+      else
+	p += sprintf(p, "K%03d", REF_BIAS - ref);
+    } else if (e[1] == 's') {
+      uint32_t slot = va_arg(argp, uint32_t);
+      p += sprintf(p, "[sp+0x%x]", sps_scale(slot));
+    } else if (e[1] == 'x') {
+      p += sprintf(p, "%08x", va_arg(argp, int32_t));
+    } else {
+      lua_assert(0);
+    }
+    fmt = e+2;
+  }
+  va_end(argp);
+  while (*fmt)
+    *p++ = *fmt++;
+  *p++ = '\e'; *p++ = '['; *p++ = 'm'; *p++ = '\n';
+  if (p > ra_dbg_buf+sizeof(ra_dbg_buf)-256) {
+    fwrite(ra_dbg_buf, 1, (size_t)(p-ra_dbg_buf), stdout);
+    p = ra_dbg_buf;
+  }
+  ra_dbg_p = p;
+}
+
+#define RA_DBG_START()	ra_dstart()
+#define RA_DBG_FLUSH()	ra_dflush()
+#define RA_DBG_REF() \
+  do { char *_p = ra_dbg_p; ra_dprintf(as, ""); \
+       ra_dbg_merge = _p; ra_dbg_mcp = as->mcp; } while (0)
+#define RA_DBGX(x)	ra_dprintf x
+
+#else
+#define RA_DBG_START()	((void)0)
+#define RA_DBG_FLUSH()	((void)0)
+#define RA_DBG_REF()	((void)0)
+#define RA_DBGX(x)	((void)0)
+#endif
+
+/* -- Register allocator -------------------------------------------------- */
+
+#define ra_free(as, r)		rset_set(as->freeset, (r))
+#define ra_modified(as, r)	rset_set(as->modset, (r))
+#define ra_weak(as, r)		rset_set(as->weakset, (r))
+#define ra_noweak(as, r)	rset_clear(as->weakset, (r))
+
+#define ra_used(ir)		(ra_hasreg((ir)->r) || ra_hasspill((ir)->s))
+
+/* Setup register allocator. */
+static void ra_setup(ASMState *as)
+{
+  Reg r;
+  /* Initially all regs (except the stack pointer) are free for use. */
+  as->freeset = RSET_INIT;
+  as->modset = RSET_EMPTY;
+  as->weakset = RSET_EMPTY;
+  as->phiset = RSET_EMPTY;
+  memset(as->phireg, 0, sizeof(as->phireg));
+  for (r = RID_MIN_GPR; r < RID_MAX; r++)
+    as->cost[r] = REGCOST(~0u, 0u);
+}
+
+/* Rematerialize constants. */
+static Reg ra_rematk(ASMState *as, IRRef ref)
+{
+  IRIns *ir;
+  Reg r;
+  if (ra_iskref(ref)) {
+    r = ra_krefreg(ref);
+    lua_assert(!rset_test(as->freeset, r));
+    ra_free(as, r);
+    ra_modified(as, r);
+    emit_loadi(as, r, ra_krefk(as, ref));
+    return r;
+  }
+  ir = IR(ref);
+  r = ir->r;
+  lua_assert(ra_hasreg(r) && !ra_hasspill(ir->s));
+  ra_free(as, r);
+  ra_modified(as, r);
+  ir->r = RID_INIT;  /* Do not keep any hint. */
+  RA_DBGX((as, "remat     $i $r", ir, r));
+#if !LJ_SOFTFP
+  if (ir->o == IR_KNUM) {
+    emit_loadn(as, r, ir_knum(ir));
+  } else
+#endif
+  if (emit_canremat(REF_BASE) && ir->o == IR_BASE) {
+    ra_sethint(ir->r, RID_BASE);  /* Restore BASE register hint. */
+    emit_getgl(as, r, jit_base);
+  } else if (emit_canremat(ASMREF_L) && ir->o == IR_KPRI) {
+    lua_assert(irt_isnil(ir->t));  /* REF_NIL stores ASMREF_L register. */
+    emit_getgl(as, r, jit_L);
+#if LJ_64
+  } else if (ir->o == IR_KINT64) {
+    emit_loadu64(as, r, ir_kint64(ir)->u64);
+#endif
+  } else {
+    lua_assert(ir->o == IR_KINT || ir->o == IR_KGC ||
+	       ir->o == IR_KPTR || ir->o == IR_KKPTR || ir->o == IR_KNULL);
+    emit_loadi(as, r, ir->i);
+  }
+  return r;
+}
+
+/* Force a spill. Allocate a new spill slot if needed. */
+static int32_t ra_spill(ASMState *as, IRIns *ir)
+{
+  int32_t slot = ir->s;
+  if (!ra_hasspill(slot)) {
+    if (irt_is64(ir->t)) {
+      slot = as->evenspill;
+      as->evenspill += 2;
+    } else if (as->oddspill) {
+      slot = as->oddspill;
+      as->oddspill = 0;
+    } else {
+      slot = as->evenspill;
+      as->oddspill = slot+1;
+      as->evenspill += 2;
+    }
+    if (as->evenspill > 256)
+      lj_trace_err(as->J, LJ_TRERR_SPILLOV);
+    ir->s = (uint8_t)slot;
+  }
+  return sps_scale(slot);
+}
+
+/* Release the temporarily allocated register in ASMREF_TMP1/ASMREF_TMP2. */
+static Reg ra_releasetmp(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  Reg r = ir->r;
+  lua_assert(ra_hasreg(r) && !ra_hasspill(ir->s));
+  ra_free(as, r);
+  ra_modified(as, r);
+  ir->r = RID_INIT;
+  return r;
+}
+
+/* Restore a register (marked as free). Rematerialize or force a spill. */
+static Reg ra_restore(ASMState *as, IRRef ref)
+{
+  if (emit_canremat(ref)) {
+    return ra_rematk(as, ref);
+  } else {
+    IRIns *ir = IR(ref);
+    int32_t ofs = ra_spill(as, ir);  /* Force a spill slot. */
+    Reg r = ir->r;
+    lua_assert(ra_hasreg(r));
+    ra_sethint(ir->r, r);  /* Keep hint. */
+    ra_free(as, r);
+    if (!rset_test(as->weakset, r)) {  /* Only restore non-weak references. */
+      ra_modified(as, r);
+      RA_DBGX((as, "restore   $i $r", ir, r));
+      emit_spload(as, ir, r, ofs);
+    }
+    return r;
+  }
+}
+
+/* Save a register to a spill slot. */
+static void ra_save(ASMState *as, IRIns *ir, Reg r)
+{
+  RA_DBGX((as, "save      $i $r", ir, r));
+  emit_spstore(as, ir, r, sps_scale(ir->s));
+}
+
+#define MINCOST(name) \
+  if (rset_test(RSET_ALL, RID_##name) && \
+      LJ_LIKELY(allow&RID2RSET(RID_##name)) && as->cost[RID_##name] < cost) \
+    cost = as->cost[RID_##name];
+
+/* Evict the register with the lowest cost, forcing a restore. */
+static Reg ra_evict(ASMState *as, RegSet allow)
+{
+  IRRef ref;
+  RegCost cost = ~(RegCost)0;
+  lua_assert(allow != RSET_EMPTY);
+  if (RID_NUM_FPR == 0 || allow < RID2RSET(RID_MAX_GPR)) {
+    GPRDEF(MINCOST)
+  } else {
+    FPRDEF(MINCOST)
+  }
+  ref = regcost_ref(cost);
+  lua_assert(ra_iskref(ref) || (ref >= as->T->nk && ref < as->T->nins));
+  /* Preferably pick any weak ref instead of a non-weak, non-const ref. */
+  if (!irref_isk(ref) && (as->weakset & allow)) {
+    IRIns *ir = IR(ref);
+    if (!rset_test(as->weakset, ir->r))
+      ref = regcost_ref(as->cost[rset_pickbot((as->weakset & allow))]);
+  }
+  return ra_restore(as, ref);
+}
+
+/* Pick any register (marked as free). Evict on-demand. */
+static Reg ra_pick(ASMState *as, RegSet allow)
+{
+  RegSet pick = as->freeset & allow;
+  if (!pick)
+    return ra_evict(as, allow);
+  else
+    return rset_picktop(pick);
+}
+
+/* Get a scratch register (marked as free). */
+static Reg ra_scratch(ASMState *as, RegSet allow)
+{
+  Reg r = ra_pick(as, allow);
+  ra_modified(as, r);
+  RA_DBGX((as, "scratch        $r", r));
+  return r;
+}
+
+/* Evict all registers from a set (if not free). */
+static void ra_evictset(ASMState *as, RegSet drop)
+{
+  RegSet work;
+  as->modset |= drop;
+#if !LJ_SOFTFP
+  work = (drop & ~as->freeset) & RSET_FPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+#endif
+  work = (drop & ~as->freeset);
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+}
+
+/* Evict (rematerialize) all registers allocated to constants. */
+static void ra_evictk(ASMState *as)
+{
+  RegSet work;
+#if !LJ_SOFTFP
+  work = ~as->freeset & RSET_FPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    if (emit_canremat(ref) && irref_isk(ref)) {
+      ra_rematk(as, ref);
+      checkmclim(as);
+    }
+    rset_clear(work, r);
+  }
+#endif
+  work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    if (emit_canremat(ref) && irref_isk(ref)) {
+      ra_rematk(as, ref);
+      checkmclim(as);
+    }
+    rset_clear(work, r);
+  }
+}
+
+#ifdef RID_NUM_KREF
+/* Allocate a register for a constant. */
+static Reg ra_allock(ASMState *as, int32_t k, RegSet allow)
+{
+  /* First try to find a register which already holds the same constant. */
+  RegSet pick, work = ~as->freeset & RSET_GPR;
+  Reg r;
+  while (work) {
+    IRRef ref;
+    r = rset_pickbot(work);
+    ref = regcost_ref(as->cost[r]);
+    if (ref < ASMREF_L &&
+	k == (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i))
+      return r;
+    rset_clear(work, r);
+  }
+  pick = as->freeset & allow;
+  if (pick) {
+    /* Constants should preferably get unmodified registers. */
+    if ((pick & ~as->modset))
+      pick &= ~as->modset;
+    r = rset_pickbot(pick);  /* Reduce conflicts with inverse allocation. */
+  } else {
+    r = ra_evict(as, allow);
+  }
+  RA_DBGX((as, "allock    $x $r", k, r));
+  ra_setkref(as, r, k);
+  rset_clear(as->freeset, r);
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate a specific register for a constant. */
+static void ra_allockreg(ASMState *as, int32_t k, Reg r)
+{
+  Reg kr = ra_allock(as, k, RID2RSET(r));
+  if (kr != r) {
+    IRIns irdummy;
+    irdummy.t.irt = IRT_INT;
+    ra_scratch(as, RID2RSET(r));
+    emit_movrr(as, &irdummy, r, kr);
+  }
+}
+#else
+#define ra_allockreg(as, k, r)		emit_loadi(as, (r), (k))
+#endif
+
+/* Allocate a register for ref from the allowed set of registers.
+** Note: this function assumes the ref does NOT have a register yet!
+** Picks an optimal register, sets the cost and marks the register as non-free.
+*/
+static Reg ra_allocref(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  RegSet pick = as->freeset & allow;
+  Reg r;
+  lua_assert(ra_noreg(ir->r));
+  if (pick) {
+    /* First check register hint from propagation or PHI. */
+    if (ra_hashint(ir->r)) {
+      r = ra_gethint(ir->r);
+      if (rset_test(pick, r))  /* Use hint register if possible. */
+	goto found;
+      /* Rematerialization is cheaper than missing a hint. */
+      if (rset_test(allow, r) && emit_canremat(regcost_ref(as->cost[r]))) {
+	ra_rematk(as, regcost_ref(as->cost[r]));
+	goto found;
+      }
+      RA_DBGX((as, "hintmiss  $f $r", ref, r));
+    }
+    /* Invariants should preferably get unmodified registers. */
+    if (ref < as->loopref && !irt_isphi(ir->t)) {
+      if ((pick & ~as->modset))
+	pick &= ~as->modset;
+      r = rset_pickbot(pick);  /* Reduce conflicts with inverse allocation. */
+    } else {
+      /* We've got plenty of regs, so get callee-save regs if possible. */
+      if (RID_NUM_GPR > 8 && (pick & ~RSET_SCRATCH))
+	pick &= ~RSET_SCRATCH;
+      r = rset_picktop(pick);
+    }
+  } else {
+    r = ra_evict(as, allow);
+  }
+found:
+  RA_DBGX((as, "alloc     $f $r", ref, r));
+  ir->r = (uint8_t)r;
+  rset_clear(as->freeset, r);
+  ra_noweak(as, r);
+  as->cost[r] = REGCOST_REF_T(ref, irt_t(ir->t));
+  return r;
+}
+
+/* Allocate a register on-demand. */
+static Reg ra_alloc1(ASMState *as, IRRef ref, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  /* Note: allow is ignored if the register is already allocated. */
+  if (ra_noreg(r)) r = ra_allocref(as, ref, allow);
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Rename register allocation and emit move. */
+static void ra_rename(ASMState *as, Reg down, Reg up)
+{
+  IRRef ren, ref = regcost_ref(as->cost[up] = as->cost[down]);
+  IRIns *ir = IR(ref);
+  ir->r = (uint8_t)up;
+  as->cost[down] = 0;
+  lua_assert((down < RID_MAX_GPR) == (up < RID_MAX_GPR));
+  lua_assert(!rset_test(as->freeset, down) && rset_test(as->freeset, up));
+  ra_free(as, down);  /* 'down' is free ... */
+  ra_modified(as, down);
+  rset_clear(as->freeset, up);  /* ... and 'up' is now allocated. */
+  ra_noweak(as, up);
+  RA_DBGX((as, "rename    $f $r $r", regcost_ref(as->cost[up]), down, up));
+  emit_movrr(as, ir, down, up);  /* Backwards codegen needs inverse move. */
+  if (!ra_hasspill(IR(ref)->s)) {  /* Add the rename to the IR. */
+    lj_ir_set(as->J, IRT(IR_RENAME, IRT_NIL), ref, as->snapno);
+    ren = tref_ref(lj_ir_emit(as->J));
+    as->ir = as->T->ir;  /* The IR may have been reallocated. */
+    IR(ren)->r = (uint8_t)down;
+    IR(ren)->s = SPS_NONE;
+  }
+}
+
+/* Pick a destination register (marked as free).
+** Caveat: allow is ignored if there's already a destination register.
+** Use ra_destreg() to get a specific register.
+*/
+static Reg ra_dest(ASMState *as, IRIns *ir, RegSet allow)
+{
+  Reg dest = ir->r;
+  if (ra_hasreg(dest)) {
+    ra_free(as, dest);
+    ra_modified(as, dest);
+  } else {
+    if (ra_hashint(dest) && rset_test((as->freeset&allow), ra_gethint(dest))) {
+      dest = ra_gethint(dest);
+      ra_modified(as, dest);
+      RA_DBGX((as, "dest           $r", dest));
+    } else {
+      dest = ra_scratch(as, allow);
+    }
+    ir->r = dest;
+  }
+  if (LJ_UNLIKELY(ra_hasspill(ir->s))) ra_save(as, ir, dest);
+  return dest;
+}
+
+/* Force a specific destination register (marked as free). */
+static void ra_destreg(ASMState *as, IRIns *ir, Reg r)
+{
+  Reg dest = ra_dest(as, ir, RID2RSET(r));
+  if (dest != r) {
+    lua_assert(rset_test(as->freeset, r));
+    ra_modified(as, r);
+    emit_movrr(as, ir, dest, r);
+  }
+}
+
+#if LJ_TARGET_X86ORX64
+/* Propagate dest register to left reference. Emit moves as needed.
+** This is a required fixup step for all 2-operand machine instructions.
+*/
+static void ra_left(ASMState *as, Reg dest, IRRef lref)
+{
+  IRIns *ir = IR(lref);
+  Reg left = ir->r;
+  if (ra_noreg(left)) {
+    if (irref_isk(lref)) {
+      if (ir->o == IR_KNUM) {
+	cTValue *tv = ir_knum(ir);
+	/* FP remat needs a load except for +0. Still better than eviction. */
+	if (tvispzero(tv) || !(as->freeset & RSET_FPR)) {
+	  emit_loadn(as, dest, tv);
+	  return;
+	}
+#if LJ_64
+      } else if (ir->o == IR_KINT64) {
+	emit_loadu64(as, dest, ir_kint64(ir)->u64);
+	return;
+#endif
+      } else {
+	lua_assert(ir->o == IR_KINT || ir->o == IR_KGC ||
+		   ir->o == IR_KPTR || ir->o == IR_KKPTR || ir->o == IR_KNULL);
+	emit_loadi(as, dest, ir->i);
+	return;
+      }
+    }
+    if (!ra_hashint(left) && !iscrossref(as, lref))
+      ra_sethint(ir->r, dest);  /* Propagate register hint. */
+    left = ra_allocref(as, lref, dest < RID_MAX_GPR ? RSET_GPR : RSET_FPR);
+  }
+  ra_noweak(as, left);
+  /* Move needed for true 3-operand instruction: y=a+b ==> y=a; y+=b. */
+  if (dest != left) {
+    /* Use register renaming if dest is the PHI reg. */
+    if (irt_isphi(ir->t) && as->phireg[dest] == lref) {
+      ra_modified(as, left);
+      ra_rename(as, left, dest);
+    } else {
+      emit_movrr(as, ir, dest, left);
+    }
+  }
+}
+#else
+/* Similar to ra_left, except we override any hints. */
+static void ra_leftov(ASMState *as, Reg dest, IRRef lref)
+{
+  IRIns *ir = IR(lref);
+  Reg left = ir->r;
+  if (ra_noreg(left)) {
+    ra_sethint(ir->r, dest);  /* Propagate register hint. */
+    left = ra_allocref(as, lref,
+		       (LJ_SOFTFP || dest < RID_MAX_GPR) ? RSET_GPR : RSET_FPR);
+  }
+  ra_noweak(as, left);
+  if (dest != left) {
+    /* Use register renaming if dest is the PHI reg. */
+    if (irt_isphi(ir->t) && as->phireg[dest] == lref) {
+      ra_modified(as, left);
+      ra_rename(as, left, dest);
+    } else {
+      emit_movrr(as, ir, dest, left);
+    }
+  }
+}
+#endif
+
+#if !LJ_64
+/* Force a RID_RETLO/RID_RETHI destination register pair (marked as free). */
+static void ra_destpair(ASMState *as, IRIns *ir)
+{
+  Reg destlo = ir->r, desthi = (ir+1)->r;
+  /* First spill unrelated refs blocking the destination registers. */
+  if (!rset_test(as->freeset, RID_RETLO) &&
+      destlo != RID_RETLO && desthi != RID_RETLO)
+    ra_restore(as, regcost_ref(as->cost[RID_RETLO]));
+  if (!rset_test(as->freeset, RID_RETHI) &&
+      destlo != RID_RETHI && desthi != RID_RETHI)
+    ra_restore(as, regcost_ref(as->cost[RID_RETHI]));
+  /* Next free the destination registers (if any). */
+  if (ra_hasreg(destlo)) {
+    ra_free(as, destlo);
+    ra_modified(as, destlo);
+  } else {
+    destlo = RID_RETLO;
+  }
+  if (ra_hasreg(desthi)) {
+    ra_free(as, desthi);
+    ra_modified(as, desthi);
+  } else {
+    desthi = RID_RETHI;
+  }
+  /* Check for conflicts and shuffle the registers as needed. */
+  if (destlo == RID_RETHI) {
+    if (desthi == RID_RETLO) {
+#if LJ_TARGET_X86
+      *--as->mcp = XI_XCHGa + RID_RETHI;
+#else
+      emit_movrr(as, ir, RID_RETHI, RID_TMP);
+      emit_movrr(as, ir, RID_RETLO, RID_RETHI);
+      emit_movrr(as, ir, RID_TMP, RID_RETLO);
+#endif
+    } else {
+      emit_movrr(as, ir, RID_RETHI, RID_RETLO);
+      if (desthi != RID_RETHI) emit_movrr(as, ir, desthi, RID_RETHI);
+    }
+  } else if (desthi == RID_RETLO) {
+    emit_movrr(as, ir, RID_RETLO, RID_RETHI);
+    if (destlo != RID_RETLO) emit_movrr(as, ir, destlo, RID_RETLO);
+  } else {
+    if (desthi != RID_RETHI) emit_movrr(as, ir, desthi, RID_RETHI);
+    if (destlo != RID_RETLO) emit_movrr(as, ir, destlo, RID_RETLO);
+  }
+  /* Restore spill slots (if any). */
+  if (ra_hasspill((ir+1)->s)) ra_save(as, ir+1, RID_RETHI);
+  if (ra_hasspill(ir->s)) ra_save(as, ir, RID_RETLO);
+}
+#endif
+
+/* -- Snapshot handling --------- ----------------------------------------- */
+
+/* Can we rematerialize a KNUM instead of forcing a spill? */
+static int asm_snap_canremat(ASMState *as)
+{
+  Reg r;
+  for (r = RID_MIN_FPR; r < RID_MAX_FPR; r++)
+    if (irref_isk(regcost_ref(as->cost[r])))
+      return 1;
+  return 0;
+}
+
+/* Check whether a sunk store corresponds to an allocation. */
+static int asm_sunk_store(ASMState *as, IRIns *ira, IRIns *irs)
+{
+  if (irs->s == 255) {
+    if (irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+	irs->o == IR_FSTORE || irs->o == IR_XSTORE) {
+      IRIns *irk = IR(irs->op1);
+      if (irk->o == IR_AREF || irk->o == IR_HREFK)
+	irk = IR(irk->op1);
+      return (IR(irk->op1) == ira);
+    }
+    return 0;
+  } else {
+    return (ira + irs->s == irs);  /* Quick check. */
+  }
+}
+
+/* Allocate register or spill slot for a ref that escapes to a snapshot. */
+static void asm_snap_alloc1(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (!irref_isk(ref) && (!(ra_used(ir) || ir->r == RID_SUNK))) {
+    if (ir->r == RID_SINK) {
+      ir->r = RID_SUNK;
+#if LJ_HASFFI
+      if (ir->o == IR_CNEWI) {  /* Allocate CNEWI value. */
+	asm_snap_alloc1(as, ir->op2);
+	if (LJ_32 && (ir+1)->o == IR_HIOP)
+	  asm_snap_alloc1(as, (ir+1)->op2);
+      } else
+#endif
+      {  /* Allocate stored values for TNEW, TDUP and CNEW. */
+	IRIns *irs;
+	lua_assert(ir->o == IR_TNEW || ir->o == IR_TDUP || ir->o == IR_CNEW);
+	for (irs = IR(as->snapref-1); irs > ir; irs--)
+	  if (irs->r == RID_SINK && asm_sunk_store(as, ir, irs)) {
+	    lua_assert(irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+		       irs->o == IR_FSTORE || irs->o == IR_XSTORE);
+	    asm_snap_alloc1(as, irs->op2);
+	    if (LJ_32 && (irs+1)->o == IR_HIOP)
+	      asm_snap_alloc1(as, (irs+1)->op2);
+	  }
+      }
+    } else {
+      RegSet allow;
+      if (ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT) {
+	IRIns *irc;
+	for (irc = IR(as->curins); irc > ir; irc--)
+	  if ((irc->op1 == ref || irc->op2 == ref) &&
+	      !(irc->r == RID_SINK || irc->r == RID_SUNK))
+	    goto nosink;  /* Don't sink conversion if result is used. */
+	asm_snap_alloc1(as, ir->op1);
+	return;
+      }
+    nosink:
+      allow = (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR;
+      if ((as->freeset & allow) ||
+	       (allow == RSET_FPR && asm_snap_canremat(as))) {
+	/* Get a weak register if we have a free one or can rematerialize. */
+	Reg r = ra_allocref(as, ref, allow);  /* Allocate a register. */
+	if (!irt_isphi(ir->t))
+	  ra_weak(as, r);  /* But mark it as weakly referenced. */
+	checkmclim(as);
+	RA_DBGX((as, "snapreg   $f $r", ref, ir->r));
+      } else {
+	ra_spill(as, ir);  /* Otherwise force a spill slot. */
+	RA_DBGX((as, "snapspill $f $s", ref, ir->s));
+      }
+    }
+  }
+}
+
+/* Allocate refs escaping to a snapshot. */
+static void asm_snap_alloc(ASMState *as)
+{
+  SnapShot *snap = &as->T->snap[as->snapno];
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    IRRef ref = snap_ref(sn);
+    if (!irref_isk(ref)) {
+      asm_snap_alloc1(as, ref);
+      if (LJ_SOFTFP && (sn & SNAP_SOFTFPNUM)) {
+	lua_assert(irt_type(IR(ref+1)->t) == IRT_SOFTFP);
+	asm_snap_alloc1(as, ref+1);
+      }
+    }
+  }
+}
+
+/* All guards for a snapshot use the same exitno. This is currently the
+** same as the snapshot number. Since the exact origin of the exit cannot
+** be determined, all guards for the same snapshot must exit with the same
+** RegSP mapping.
+** A renamed ref which has been used in a prior guard for the same snapshot
+** would cause an inconsistency. The easy way out is to force a spill slot.
+*/
+static int asm_snap_checkrename(ASMState *as, IRRef ren)
+{
+  SnapShot *snap = &as->T->snap[as->snapno];
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    IRRef ref = snap_ref(sn);
+    if (ref == ren || (LJ_SOFTFP && (sn & SNAP_SOFTFPNUM) && ++ref == ren)) {
+      IRIns *ir = IR(ref);
+      ra_spill(as, ir);  /* Register renamed, so force a spill slot. */
+      RA_DBGX((as, "snaprensp $f $s", ref, ir->s));
+      return 1;  /* Found. */
+    }
+  }
+  return 0;  /* Not found. */
+}
+
+/* Prepare snapshot for next guard instruction. */
+static void asm_snap_prep(ASMState *as)
+{
+  if (as->curins < as->snapref) {
+    do {
+      if (as->snapno == 0) return;  /* Called by sunk stores before snap #0. */
+      as->snapno--;
+      as->snapref = as->T->snap[as->snapno].ref;
+    } while (as->curins < as->snapref);
+    asm_snap_alloc(as);
+    as->snaprename = as->T->nins;
+  } else {
+    /* Process any renames above the highwater mark. */
+    for (; as->snaprename < as->T->nins; as->snaprename++) {
+      IRIns *ir = IR(as->snaprename);
+      if (asm_snap_checkrename(as, ir->op1))
+	ir->op2 = REF_BIAS-1;  /* Kill rename. */
+    }
+  }
+}
+
+/* -- Miscellaneous helpers ----------------------------------------------- */
+
+/* Collect arguments from CALL* and CARG instructions. */
+static void asm_collectargs(ASMState *as, IRIns *ir,
+			    const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n = CCI_NARGS(ci);
+  lua_assert(n <= CCI_NARGS_MAX*2);  /* Account for split args. */
+  if ((ci->flags & CCI_L)) { *args++ = ASMREF_L; n--; }
+  while (n-- > 1) {
+    ir = IR(ir->op1);
+    lua_assert(ir->o == IR_CARG);
+    args[n] = ir->op2 == REF_NIL ? 0 : ir->op2;
+  }
+  args[0] = ir->op1 == REF_NIL ? 0 : ir->op1;
+  lua_assert(IR(ir->op1)->o != IR_CARG);
+}
+
+/* Reconstruct CCallInfo flags for CALLX*. */
+static uint32_t asm_callx_flags(ASMState *as, IRIns *ir)
+{
+  uint32_t nargs = 0;
+  if (ir->op1 != REF_NIL) {  /* Count number of arguments first. */
+    IRIns *ira = IR(ir->op1);
+    nargs++;
+    while (ira->o == IR_CARG) { nargs++; ira = IR(ira->op1); }
+  }
+#if LJ_HASFFI
+  if (IR(ir->op2)->o == IR_CARG) {  /* Copy calling convention info. */
+    CTypeID id = (CTypeID)IR(IR(ir->op2)->op2)->i;
+    CType *ct = ctype_get(ctype_ctsG(J2G(as->J)), id);
+    nargs |= ((ct->info & CTF_VARARG) ? CCI_VARARG : 0);
+#if LJ_TARGET_X86
+    nargs |= (ctype_cconv(ct->info) << CCI_CC_SHIFT);
+#endif
+  }
+#endif
+  return (nargs | (ir->t.irt << CCI_OTSHIFT));
+}
+
+/* Calculate stack adjustment. */
+static int32_t asm_stack_adjust(ASMState *as)
+{
+  if (as->evenspill <= SPS_FIXED)
+    return 0;
+  return sps_scale(sps_align(as->evenspill));
+}
+
+/* Must match with hash*() in lj_tab.c. */
+static uint32_t ir_khash(IRIns *ir)
+{
+  uint32_t lo, hi;
+  if (irt_isstr(ir->t)) {
+    return ir_kstr(ir)->hash;
+  } else if (irt_isnum(ir->t)) {
+    lo = ir_knum(ir)->u32.lo;
+    hi = ir_knum(ir)->u32.hi << 1;
+  } else if (irt_ispri(ir->t)) {
+    lua_assert(!irt_isnil(ir->t));
+    return irt_type(ir->t)-IRT_FALSE;
+  } else {
+    lua_assert(irt_isgcv(ir->t));
+    lo = u32ptr(ir_kgc(ir));
+    hi = lo + HASH_BIAS;
+  }
+  return hashrot(lo, hi);
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args);
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci);
+
+static void asm_snew(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_new];
+  IRRef args[3];
+  args[0] = ASMREF_L;  /* lua_State *L    */
+  args[1] = ir->op1;   /* const char *str */
+  args[2] = ir->op2;   /* size_t len      */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCstr * */
+  asm_gencall(as, ci, args);
+}
+
+static void asm_tnew(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_new1];
+  IRRef args[2];
+  args[0] = ASMREF_L;     /* lua_State *L    */
+  args[1] = ASMREF_TMP1;  /* uint32_t ahsize */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCtab * */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, ir->op1 | (ir->op2 << 24), ra_releasetmp(as, ASMREF_TMP1));
+}
+
+static void asm_tdup(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_dup];
+  IRRef args[2];
+  args[0] = ASMREF_L;  /* lua_State *L    */
+  args[1] = ir->op1;   /* const GCtab *kt */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCtab * */
+  asm_gencall(as, ci, args);
+}
+
+static void asm_gc_check(ASMState *as);
+
+/* Explicit GC step. */
+static void asm_gcstep(ASMState *as, IRIns *ir)
+{
+  IRIns *ira;
+  for (ira = IR(as->stopins+1); ira < ir; ira++)
+    if ((ira->o == IR_TNEW || ira->o == IR_TDUP ||
+	 (LJ_HASFFI && (ira->o == IR_CNEW || ira->o == IR_CNEWI))) &&
+	ra_used(ira))
+      as->gcsteps++;
+  if (as->gcsteps)
+    asm_gc_check(as);
+  as->gcsteps = 0x80000000;  /* Prevent implicit GC check further up. */
+}
+
+/* -- PHI and loop handling ----------------------------------------------- */
+
+/* Break a PHI cycle by renaming to a free register (evict if needed). */
+static void asm_phi_break(ASMState *as, RegSet blocked, RegSet blockedby,
+			  RegSet allow)
+{
+  RegSet candidates = blocked & allow;
+  if (candidates) {  /* If this register file has candidates. */
+    /* Note: the set for ra_pick cannot be empty, since each register file
+    ** has some registers never allocated to PHIs.
+    */
+    Reg down, up = ra_pick(as, ~blocked & allow);  /* Get a free register. */
+    if (candidates & ~blockedby)  /* Optimize shifts, else it's a cycle. */
+      candidates = candidates & ~blockedby;
+    down = rset_picktop(candidates);  /* Pick candidate PHI register. */
+    ra_rename(as, down, up);  /* And rename it to the free register. */
+  }
+}
+
+/* PHI register shuffling.
+**
+** The allocator tries hard to preserve PHI register assignments across
+** the loop body. Most of the time this loop does nothing, since there
+** are no register mismatches.
+**
+** If a register mismatch is detected and ...
+** - the register is currently free: rename it.
+** - the register is blocked by an invariant: restore/remat and rename it.
+** - Otherwise the register is used by another PHI, so mark it as blocked.
+**
+** The renames are order-sensitive, so just retry the loop if a register
+** is marked as blocked, but has been freed in the meantime. A cycle is
+** detected if all of the blocked registers are allocated. To break the
+** cycle rename one of them to a free register and retry.
+**
+** Note that PHI spill slots are kept in sync and don't need to be shuffled.
+*/
+static void asm_phi_shuffle(ASMState *as)
+{
+  RegSet work;
+
+  /* Find and resolve PHI register mismatches. */
+  for (;;) {
+    RegSet blocked = RSET_EMPTY;
+    RegSet blockedby = RSET_EMPTY;
+    RegSet phiset = as->phiset;
+    while (phiset) {  /* Check all left PHI operand registers. */
+      Reg r = rset_pickbot(phiset);
+      IRIns *irl = IR(as->phireg[r]);
+      Reg left = irl->r;
+      if (r != left) {  /* Mismatch? */
+	if (!rset_test(as->freeset, r)) {  /* PHI register blocked? */
+	  IRRef ref = regcost_ref(as->cost[r]);
+	  /* Blocked by other PHI (w/reg)? */
+	  if (!ra_iskref(ref) && irt_ismarked(IR(ref)->t)) {
+	    rset_set(blocked, r);
+	    if (ra_hasreg(left))
+	      rset_set(blockedby, left);
+	    left = RID_NONE;
+	  } else {  /* Otherwise grab register from invariant. */
+	    ra_restore(as, ref);
+	    checkmclim(as);
+	  }
+	}
+	if (ra_hasreg(left)) {
+	  ra_rename(as, left, r);
+	  checkmclim(as);
+	}
+      }
+      rset_clear(phiset, r);
+    }
+    if (!blocked) break;  /* Finished. */
+    if (!(as->freeset & blocked)) {  /* Break cycles if none are free. */
+      asm_phi_break(as, blocked, blockedby, RSET_GPR);
+      if (!LJ_SOFTFP) asm_phi_break(as, blocked, blockedby, RSET_FPR);
+      checkmclim(as);
+    }  /* Else retry some more renames. */
+  }
+
+  /* Restore/remat invariants whose registers are modified inside the loop. */
+#if !LJ_SOFTFP
+  work = as->modset & ~(as->freeset | as->phiset) & RSET_FPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+#endif
+  work = as->modset & ~(as->freeset | as->phiset);
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+
+  /* Allocate and save all unsaved PHI regs and clear marks. */
+  work = as->phiset;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef lref = as->phireg[r];
+    IRIns *ir = IR(lref);
+    if (ra_hasspill(ir->s)) {  /* Left PHI gained a spill slot? */
+      irt_clearmark(ir->t);  /* Handled here, so clear marker now. */
+      ra_alloc1(as, lref, RID2RSET(r));
+      ra_save(as, ir, r);  /* Save to spill slot inside the loop. */
+      checkmclim(as);
+    }
+    rset_clear(work, r);
+  }
+}
+
+/* Copy unsynced left/right PHI spill slots. Rarely needed. */
+static void asm_phi_copyspill(ASMState *as)
+{
+  int need = 0;
+  IRIns *ir;
+  for (ir = IR(as->orignins-1); ir->o == IR_PHI; ir--)
+    if (ra_hasspill(ir->s) && ra_hasspill(IR(ir->op1)->s))
+      need |= irt_isfp(ir->t) ? 2 : 1;  /* Unsynced spill slot? */
+  if ((need & 1)) {  /* Copy integer spill slots. */
+#if !LJ_TARGET_X86ORX64
+    Reg r = RID_TMP;
+#else
+    Reg r = RID_RET;
+    if ((as->freeset & RSET_GPR))
+      r = rset_pickbot((as->freeset & RSET_GPR));
+    else
+      emit_spload(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+#endif
+    for (ir = IR(as->orignins-1); ir->o == IR_PHI; ir--) {
+      if (ra_hasspill(ir->s)) {
+	IRIns *irl = IR(ir->op1);
+	if (ra_hasspill(irl->s) && !irt_isfp(ir->t)) {
+	  emit_spstore(as, irl, r, sps_scale(irl->s));
+	  emit_spload(as, ir, r, sps_scale(ir->s));
+	  checkmclim(as);
+	}
+      }
+    }
+#if LJ_TARGET_X86ORX64
+    if (!rset_test(as->freeset, r))
+      emit_spstore(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+#endif
+  }
+#if !LJ_SOFTFP
+  if ((need & 2)) {  /* Copy FP spill slots. */
+#if LJ_TARGET_X86
+    Reg r = RID_XMM0;
+#else
+    Reg r = RID_FPRET;
+#endif
+    if ((as->freeset & RSET_FPR))
+      r = rset_pickbot((as->freeset & RSET_FPR));
+    if (!rset_test(as->freeset, r))
+      emit_spload(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+    for (ir = IR(as->orignins-1); ir->o == IR_PHI; ir--) {
+      if (ra_hasspill(ir->s)) {
+	IRIns *irl = IR(ir->op1);
+	if (ra_hasspill(irl->s) && irt_isfp(ir->t)) {
+	  emit_spstore(as, irl, r, sps_scale(irl->s));
+	  emit_spload(as, ir, r, sps_scale(ir->s));
+	  checkmclim(as);
+	}
+      }
+    }
+    if (!rset_test(as->freeset, r))
+      emit_spstore(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+  }
+#endif
+}
+
+/* Emit renames for left PHIs which are only spilled outside the loop. */
+static void asm_phi_fixup(ASMState *as)
+{
+  RegSet work = as->phiset;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef lref = as->phireg[r];
+    IRIns *ir = IR(lref);
+    if (irt_ismarked(ir->t)) {
+      irt_clearmark(ir->t);
+      /* Left PHI gained a spill slot before the loop? */
+      if (ra_hasspill(ir->s)) {
+	IRRef ren;
+	lj_ir_set(as->J, IRT(IR_RENAME, IRT_NIL), lref, as->loopsnapno);
+	ren = tref_ref(lj_ir_emit(as->J));
+	as->ir = as->T->ir;  /* The IR may have been reallocated. */
+	IR(ren)->r = (uint8_t)r;
+	IR(ren)->s = SPS_NONE;
+      }
+    }
+    rset_clear(work, r);
+  }
+}
+
+/* Setup right PHI reference. */
+static void asm_phi(ASMState *as, IRIns *ir)
+{
+  RegSet allow = ((!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR) &
+		 ~as->phiset;
+  RegSet afree = (as->freeset & allow);
+  IRIns *irl = IR(ir->op1);
+  IRIns *irr = IR(ir->op2);
+  if (ir->r == RID_SINK)  /* Sink PHI. */
+    return;
+  /* Spill slot shuffling is not implemented yet (but rarely needed). */
+  if (ra_hasspill(irl->s) || ra_hasspill(irr->s))
+    lj_trace_err(as->J, LJ_TRERR_NYIPHI);
+  /* Leave at least one register free for non-PHIs (and PHI cycle breaking). */
+  if ((afree & (afree-1))) {  /* Two or more free registers? */
+    Reg r;
+    if (ra_noreg(irr->r)) {  /* Get a register for the right PHI. */
+      r = ra_allocref(as, ir->op2, allow);
+    } else {  /* Duplicate right PHI, need a copy (rare). */
+      r = ra_scratch(as, allow);
+      emit_movrr(as, irr, r, irr->r);
+    }
+    ir->r = (uint8_t)r;
+    rset_set(as->phiset, r);
+    as->phireg[r] = (IRRef1)ir->op1;
+    irt_setmark(irl->t);  /* Marks left PHIs _with_ register. */
+    if (ra_noreg(irl->r))
+      ra_sethint(irl->r, r); /* Set register hint for left PHI. */
+  } else {  /* Otherwise allocate a spill slot. */
+    /* This is overly restrictive, but it triggers only on synthetic code. */
+    if (ra_hasreg(irl->r) || ra_hasreg(irr->r))
+      lj_trace_err(as->J, LJ_TRERR_NYIPHI);
+    ra_spill(as, ir);
+    irr->s = ir->s;  /* Set right PHI spill slot. Sync left slot later. */
+  }
+}
+
+static void asm_loop_fixup(ASMState *as);
+
+/* Middle part of a loop. */
+static void asm_loop(ASMState *as)
+{
+  MCode *mcspill;
+  /* LOOP is a guard, so the snapno is up to date. */
+  as->loopsnapno = as->snapno;
+  if (as->gcsteps)
+    asm_gc_check(as);
+  /* LOOP marks the transition from the variant to the invariant part. */
+  as->flagmcp = as->invmcp = NULL;
+  as->sectref = 0;
+  if (!neverfuse(as)) as->fuseref = 0;
+  asm_phi_shuffle(as);
+  mcspill = as->mcp;
+  asm_phi_copyspill(as);
+  asm_loop_fixup(as);
+  as->mcloop = as->mcp;
+  RA_DBGX((as, "===== LOOP ====="));
+  if (!as->realign) RA_DBG_FLUSH();
+  if (as->mcp != mcspill)
+    emit_jmp(as, mcspill);
+}
+
+/* -- Target-specific assembler ------------------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+#include "lj_asm_x86.h"
+#elif LJ_TARGET_ARM
+#include "lj_asm_arm.h"
+#elif LJ_TARGET_PPC
+#include "lj_asm_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "lj_asm_mips.h"
+#else
+#error "Missing assembler for target CPU"
+#endif
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Head of a root trace. */
+static void asm_head_root(ASMState *as)
+{
+  int32_t spadj;
+  asm_head_root_base(as);
+  emit_setvmstate(as, (int32_t)as->T->traceno);
+  spadj = asm_stack_adjust(as);
+  as->T->spadjust = (uint16_t)spadj;
+  emit_spsub(as, spadj);
+  /* Root traces assume a checked stack for the starting proto. */
+  as->T->topslot = gcref(as->T->startpt)->pt.framesize;
+}
+
+/* Head of a side trace.
+**
+** The current simplistic algorithm requires that all slots inherited
+** from the parent are live in a register between pass 2 and pass 3. This
+** avoids the complexity of stack slot shuffling. But of course this may
+** overflow the register set in some cases and cause the dreaded error:
+** "NYI: register coalescing too complex". A refined algorithm is needed.
+*/
+static void asm_head_side(ASMState *as)
+{
+  IRRef1 sloadins[RID_MAX];
+  RegSet allow = RSET_ALL;  /* Inverse of all coalesced registers. */
+  RegSet live = RSET_EMPTY;  /* Live parent registers. */
+  IRIns *irp = &as->parent->ir[REF_BASE];  /* Parent base. */
+  int32_t spadj, spdelta;
+  int pass2 = 0;
+  int pass3 = 0;
+  IRRef i;
+
+  allow = asm_head_side_base(as, irp, allow);
+
+  /* Scan all parent SLOADs and collect register dependencies. */
+  for (i = as->stopins; i > REF_BASE; i--) {
+    IRIns *ir = IR(i);
+    RegSP rs;
+    lua_assert((ir->o == IR_SLOAD && (ir->op2 & IRSLOAD_PARENT)) ||
+	       (LJ_SOFTFP && ir->o == IR_HIOP) || ir->o == IR_PVAL);
+    rs = as->parentmap[i - REF_FIRST];
+    if (ra_hasreg(ir->r)) {
+      rset_clear(allow, ir->r);
+      if (ra_hasspill(ir->s)) {
+	ra_save(as, ir, ir->r);
+	checkmclim(as);
+      }
+    } else if (ra_hasspill(ir->s)) {
+      irt_setmark(ir->t);
+      pass2 = 1;
+    }
+    if (ir->r == rs) {  /* Coalesce matching registers right now. */
+      ra_free(as, ir->r);
+    } else if (ra_hasspill(regsp_spill(rs))) {
+      if (ra_hasreg(ir->r))
+	pass3 = 1;
+    } else if (ra_used(ir)) {
+      sloadins[rs] = (IRRef1)i;
+      rset_set(live, rs);  /* Block live parent register. */
+    }
+  }
+
+  /* Calculate stack frame adjustment. */
+  spadj = asm_stack_adjust(as);
+  spdelta = spadj - (int32_t)as->parent->spadjust;
+  if (spdelta < 0) {  /* Don't shrink the stack frame. */
+    spadj = (int32_t)as->parent->spadjust;
+    spdelta = 0;
+  }
+  as->T->spadjust = (uint16_t)spadj;
+
+  /* Reload spilled target registers. */
+  if (pass2) {
+    for (i = as->stopins; i > REF_BASE; i--) {
+      IRIns *ir = IR(i);
+      if (irt_ismarked(ir->t)) {
+	RegSet mask;
+	Reg r;
+	RegSP rs;
+	irt_clearmark(ir->t);
+	rs = as->parentmap[i - REF_FIRST];
+	if (!ra_hasspill(regsp_spill(rs)))
+	  ra_sethint(ir->r, rs);  /* Hint may be gone, set it again. */
+	else if (sps_scale(regsp_spill(rs))+spdelta == sps_scale(ir->s))
+	  continue;  /* Same spill slot, do nothing. */
+	mask = ((!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR) & allow;
+	if (mask == RSET_EMPTY)
+	  lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+	r = ra_allocref(as, i, mask);
+	ra_save(as, ir, r);
+	rset_clear(allow, r);
+	if (r == rs) {  /* Coalesce matching registers right now. */
+	  ra_free(as, r);
+	  rset_clear(live, r);
+	} else if (ra_hasspill(regsp_spill(rs))) {
+	  pass3 = 1;
+	}
+	checkmclim(as);
+      }
+    }
+  }
+
+  /* Store trace number and adjust stack frame relative to the parent. */
+  emit_setvmstate(as, (int32_t)as->T->traceno);
+  emit_spsub(as, spdelta);
+
+#if !LJ_TARGET_X86ORX64
+  /* Restore BASE register from parent spill slot. */
+  if (ra_hasspill(irp->s))
+    emit_spload(as, IR(REF_BASE), IR(REF_BASE)->r, sps_scale(irp->s));
+#endif
+
+  /* Restore target registers from parent spill slots. */
+  if (pass3) {
+    RegSet work = ~as->freeset & RSET_ALL;
+    while (work) {
+      Reg r = rset_pickbot(work);
+      IRRef ref = regcost_ref(as->cost[r]);
+      RegSP rs = as->parentmap[ref - REF_FIRST];
+      rset_clear(work, r);
+      if (ra_hasspill(regsp_spill(rs))) {
+	int32_t ofs = sps_scale(regsp_spill(rs));
+	ra_free(as, r);
+	emit_spload(as, IR(ref), r, ofs);
+	checkmclim(as);
+      }
+    }
+  }
+
+  /* Shuffle registers to match up target regs with parent regs. */
+  for (;;) {
+    RegSet work;
+
+    /* Repeatedly coalesce free live registers by moving to their target. */
+    while ((work = as->freeset & live) != RSET_EMPTY) {
+      Reg rp = rset_pickbot(work);
+      IRIns *ir = IR(sloadins[rp]);
+      rset_clear(live, rp);
+      rset_clear(allow, rp);
+      ra_free(as, ir->r);
+      emit_movrr(as, ir, ir->r, rp);
+      checkmclim(as);
+    }
+
+    /* We're done if no live registers remain. */
+    if (live == RSET_EMPTY)
+      break;
+
+    /* Break cycles by renaming one target to a temp. register. */
+    if (live & RSET_GPR) {
+      RegSet tmpset = as->freeset & ~live & allow & RSET_GPR;
+      if (tmpset == RSET_EMPTY)
+	lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+      ra_rename(as, rset_pickbot(live & RSET_GPR), rset_pickbot(tmpset));
+    }
+    if (!LJ_SOFTFP && (live & RSET_FPR)) {
+      RegSet tmpset = as->freeset & ~live & allow & RSET_FPR;
+      if (tmpset == RSET_EMPTY)
+	lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+      ra_rename(as, rset_pickbot(live & RSET_FPR), rset_pickbot(tmpset));
+    }
+    checkmclim(as);
+    /* Continue with coalescing to fix up the broken cycle(s). */
+  }
+
+  /* Inherit top stack slot already checked by parent trace. */
+  as->T->topslot = as->parent->topslot;
+  if (as->topslot > as->T->topslot) {  /* Need to check for higher slot? */
+#ifdef EXITSTATE_CHECKEXIT
+    /* Highest exit + 1 indicates stack check. */
+    ExitNo exitno = as->T->nsnap;
+#else
+    /* Reuse the parent exit in the context of the parent trace. */
+    ExitNo exitno = as->J->exitno;
+#endif
+    as->T->topslot = (uint8_t)as->topslot;  /* Remember for child traces. */
+    asm_stack_check(as, as->topslot, irp, allow & RSET_GPR, exitno);
+  }
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Get base slot for a snapshot. */
+static BCReg asm_baseslot(ASMState *as, SnapShot *snap, int *gotframe)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  MSize n;
+  for (n = snap->nent; n > 0; n--) {
+    SnapEntry sn = map[n-1];
+    if ((sn & SNAP_FRAME)) {
+      *gotframe = 1;
+      return snap_slot(sn);
+    }
+  }
+  return 0;
+}
+
+/* Link to another trace. */
+static void asm_tail_link(ASMState *as)
+{
+  SnapNo snapno = as->T->nsnap-1;  /* Last snapshot. */
+  SnapShot *snap = &as->T->snap[snapno];
+  int gotframe = 0;
+  BCReg baseslot = asm_baseslot(as, snap, &gotframe);
+
+  as->topslot = snap->topslot;
+  checkmclim(as);
+  ra_allocref(as, REF_BASE, RID2RSET(RID_BASE));
+
+  if (as->T->link == 0) {
+    /* Setup fixed registers for exit to interpreter. */
+    const BCIns *pc = snap_pc(as->T->snapmap[snap->mapofs + snap->nent]);
+    int32_t mres;
+    if (bc_op(*pc) == BC_JLOOP) {  /* NYI: find a better way to do this. */
+      BCIns *retpc = &traceref(as->J, bc_d(*pc))->startins;
+      if (bc_isret(bc_op(*retpc)))
+	pc = retpc;
+    }
+    ra_allockreg(as, i32ptr(J2GG(as->J)->dispatch), RID_DISPATCH);
+    ra_allockreg(as, i32ptr(pc), RID_LPC);
+    mres = (int32_t)(snap->nslots - baseslot);
+    switch (bc_op(*pc)) {
+    case BC_CALLM: case BC_CALLMT:
+      mres -= (int32_t)(1 + bc_a(*pc) + bc_c(*pc)); break;
+    case BC_RETM: mres -= (int32_t)(bc_a(*pc) + bc_d(*pc)); break;
+    case BC_TSETM: mres -= (int32_t)bc_a(*pc); break;
+    default: if (bc_op(*pc) < BC_FUNCF) mres = 0; break;
+    }
+    ra_allockreg(as, mres, RID_RET);  /* Return MULTRES or 0. */
+  } else if (baseslot) {
+    /* Save modified BASE for linking to trace with higher start frame. */
+    emit_setgl(as, RID_BASE, jit_base);
+  }
+  emit_addptr(as, RID_BASE, 8*(int32_t)baseslot);
+
+  /* Sync the interpreter state with the on-trace state. */
+  asm_stack_restore(as, snap);
+
+  /* Root traces that add frames need to check the stack at the end. */
+  if (!as->parent && gotframe)
+    asm_stack_check(as, as->topslot, NULL, as->freeset & RSET_GPR, snapno);
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Clear reg/sp for all instructions and add register hints. */
+static void asm_setup_regsp(ASMState *as)
+{
+  GCtrace *T = as->T;
+  int sink = T->sinktags;
+  IRRef nins = T->nins;
+  IRIns *ir, *lastir;
+  int inloop;
+#if LJ_TARGET_ARM
+  uint32_t rload = 0xa6402a64;
+#endif
+
+  ra_setup(as);
+
+  /* Clear reg/sp for constants. */
+  for (ir = IR(T->nk), lastir = IR(REF_BASE); ir < lastir; ir++)
+    ir->prev = REGSP_INIT;
+
+  /* REF_BASE is used for implicit references to the BASE register. */
+  lastir->prev = REGSP_HINT(RID_BASE);
+
+  ir = IR(nins-1);
+  if (ir->o == IR_RENAME) {
+    do { ir--; nins--; } while (ir->o == IR_RENAME);
+    T->nins = nins;  /* Remove any renames left over from ASM restart. */
+  }
+  as->snaprename = nins;
+  as->snapref = nins;
+  as->snapno = T->nsnap;
+
+  as->stopins = REF_BASE;
+  as->orignins = nins;
+  as->curins = nins;
+
+  /* Setup register hints for parent link instructions. */
+  ir = IR(REF_FIRST);
+  if (as->parent) {
+    uint16_t *p;
+    lastir = lj_snap_regspmap(as->parent, as->J->exitno, ir);
+    if (lastir - ir > LJ_MAX_JSLOTS)
+      lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+    as->stopins = (IRRef)((lastir-1) - as->ir);
+    for (p = as->parentmap; ir < lastir; ir++) {
+      RegSP rs = ir->prev;
+      *p++ = (uint16_t)rs;  /* Copy original parent RegSP to parentmap. */
+      if (!ra_hasspill(regsp_spill(rs)))
+	ir->prev = (uint16_t)REGSP_HINT(regsp_reg(rs));
+      else
+	ir->prev = REGSP_INIT;
+    }
+  }
+
+  inloop = 0;
+  as->evenspill = SPS_FIRST;
+  for (lastir = IR(nins); ir < lastir; ir++) {
+    if (sink) {
+      if (ir->r == RID_SINK)
+	continue;
+      if (ir->r == RID_SUNK) {  /* Revert after ASM restart. */
+	ir->r = RID_SINK;
+	continue;
+      }
+    }
+    switch (ir->o) {
+    case IR_LOOP:
+      inloop = 1;
+      break;
+#if LJ_TARGET_ARM
+    case IR_SLOAD:
+      if (!((ir->op2 & IRSLOAD_TYPECHECK) || (ir+1)->o == IR_HIOP))
+	break;
+      /* fallthrough */
+    case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+      if (!LJ_SOFTFP && irt_isnum(ir->t)) break;
+      ir->prev = (uint16_t)REGSP_HINT((rload & 15));
+      rload = lj_ror(rload, 4);
+      continue;
+#endif
+    case IR_CALLXS: {
+      CCallInfo ci;
+      ci.flags = asm_callx_flags(as, ir);
+      ir->prev = asm_setup_call_slots(as, ir, &ci);
+      if (inloop)
+	as->modset |= RSET_SCRATCH;
+      continue;
+      }
+    case IR_CALLN: case IR_CALLL: case IR_CALLS: {
+      const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+      ir->prev = asm_setup_call_slots(as, ir, ci);
+      if (inloop)
+	as->modset |= (ci->flags & CCI_NOFPRCLOBBER) ?
+		      (RSET_SCRATCH & ~RSET_FPR) : RSET_SCRATCH;
+      continue;
+      }
+#if LJ_SOFTFP || (LJ_32 && LJ_HASFFI)
+    case IR_HIOP:
+      switch ((ir-1)->o) {
+#if LJ_SOFTFP && LJ_TARGET_ARM
+      case IR_SLOAD: case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+	if (ra_hashint((ir-1)->r)) {
+	  ir->prev = (ir-1)->prev + 1;
+	  continue;
+	}
+	break;
+#endif
+#if !LJ_SOFTFP && LJ_NEED_FP64
+      case IR_CONV:
+	if (irt_isfp((ir-1)->t)) {
+	  ir->prev = REGSP_HINT(RID_FPRET);
+	  continue;
+	}
+	/* fallthrough */
+#endif
+      case IR_CALLN: case IR_CALLXS:
+#if LJ_SOFTFP
+      case IR_MIN: case IR_MAX:
+#endif
+	(ir-1)->prev = REGSP_HINT(RID_RETLO);
+	ir->prev = REGSP_HINT(RID_RETHI);
+	continue;
+      default:
+	break;
+      }
+      break;
+#endif
+#if LJ_SOFTFP
+    case IR_MIN: case IR_MAX:
+      if ((ir+1)->o != IR_HIOP) break;
+      /* fallthrough */
+#endif
+    /* C calls evict all scratch regs and return results in RID_RET. */
+    case IR_SNEW: case IR_XSNEW: case IR_NEWREF:
+      if (REGARG_NUMGPR < 3 && as->evenspill < 3)
+	as->evenspill = 3;  /* lj_str_new and lj_tab_newkey need 3 args. */
+    case IR_TNEW: case IR_TDUP: case IR_CNEW: case IR_CNEWI: case IR_TOSTR:
+      ir->prev = REGSP_HINT(RID_RET);
+      if (inloop)
+	as->modset = RSET_SCRATCH;
+      continue;
+    case IR_STRTO: case IR_OBAR:
+      if (inloop)
+	as->modset = RSET_SCRATCH;
+      break;
+#if !LJ_TARGET_X86ORX64 && !LJ_SOFTFP
+    case IR_ATAN2: case IR_LDEXP:
+#endif
+    case IR_POW:
+      if (!LJ_SOFTFP && irt_isnum(ir->t)) {
+#if LJ_TARGET_X86ORX64
+	ir->prev = REGSP_HINT(RID_XMM0);
+	if (inloop)
+	  as->modset |= RSET_RANGE(RID_XMM0, RID_XMM1+1)|RID2RSET(RID_EAX);
+#else
+	ir->prev = REGSP_HINT(RID_FPRET);
+	if (inloop)
+	  as->modset |= RSET_SCRATCH;
+#endif
+	continue;
+      }
+      /* fallthrough for integer POW */
+    case IR_DIV: case IR_MOD:
+      if (!irt_isnum(ir->t)) {
+	ir->prev = REGSP_HINT(RID_RET);
+	if (inloop)
+	  as->modset |= (RSET_SCRATCH & RSET_GPR);
+	continue;
+      }
+      break;
+    case IR_FPMATH:
+#if LJ_TARGET_X86ORX64
+      if (ir->op2 == IRFPM_EXP2) {  /* May be joined to lj_vm_pow_sse. */
+	ir->prev = REGSP_HINT(RID_XMM0);
+#if !LJ_64
+	if (as->evenspill < 4)  /* Leave room for 16 byte scratch area. */
+	  as->evenspill = 4;
+#endif
+	if (inloop)
+	  as->modset |= RSET_RANGE(RID_XMM0, RID_XMM2+1)|RID2RSET(RID_EAX);
+	continue;
+      } else if (ir->op2 <= IRFPM_TRUNC && !(as->flags & JIT_F_SSE4_1)) {
+	ir->prev = REGSP_HINT(RID_XMM0);
+	if (inloop)
+	  as->modset |= RSET_RANGE(RID_XMM0, RID_XMM3+1)|RID2RSET(RID_EAX);
+	continue;
+      }
+      break;
+#else
+      ir->prev = REGSP_HINT(RID_FPRET);
+      if (inloop)
+	as->modset |= RSET_SCRATCH;
+      continue;
+#endif
+#if LJ_TARGET_X86ORX64
+    /* Non-constant shift counts need to be in RID_ECX on x86/x64. */
+    case IR_BSHL: case IR_BSHR: case IR_BSAR: case IR_BROL: case IR_BROR:
+      if (!irref_isk(ir->op2) && !ra_hashint(IR(ir->op2)->r)) {
+	IR(ir->op2)->r = REGSP_HINT(RID_ECX);
+	if (inloop)
+	  rset_set(as->modset, RID_ECX);
+      }
+      break;
+#endif
+    /* Do not propagate hints across type conversions or loads. */
+    case IR_TOBIT:
+    case IR_XLOAD:
+#if !LJ_TARGET_ARM
+    case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+#endif
+      break;
+    case IR_CONV:
+      if (irt_isfp(ir->t) || (ir->op2 & IRCONV_SRCMASK) == IRT_NUM ||
+	  (ir->op2 & IRCONV_SRCMASK) == IRT_FLOAT)
+	break;
+      /* fallthrough */
+    default:
+      /* Propagate hints across likely 'op reg, imm' or 'op reg'. */
+      if (irref_isk(ir->op2) && !irref_isk(ir->op1) &&
+	  ra_hashint(regsp_reg(IR(ir->op1)->prev))) {
+	ir->prev = IR(ir->op1)->prev;
+	continue;
+      }
+      break;
+    }
+    ir->prev = REGSP_INIT;
+  }
+  if ((as->evenspill & 1))
+    as->oddspill = as->evenspill++;
+  else
+    as->oddspill = 0;
+}
+
+/* -- Assembler core ------------------------------------------------------ */
+
+/* Assemble a trace. */
+void lj_asm_trace(jit_State *J, GCtrace *T)
+{
+  ASMState as_;
+  ASMState *as = &as_;
+  MCode *origtop;
+
+  /* Ensure an initialized instruction beyond the last one for HIOP checks. */
+  J->cur.nins = lj_ir_nextins(J);
+  J->cur.ir[J->cur.nins].o = IR_NOP;
+
+  /* Setup initial state. Copy some fields to reduce indirections. */
+  as->J = J;
+  as->T = T;
+  as->ir = T->ir;
+  as->flags = J->flags;
+  as->loopref = J->loopref;
+  as->realign = NULL;
+  as->loopinv = 0;
+  as->parent = J->parent ? traceref(J, J->parent) : NULL;
+
+  /* Reserve MCode memory. */
+  as->mctop = origtop = lj_mcode_reserve(J, &as->mcbot);
+  as->mcp = as->mctop;
+  as->mclim = as->mcbot + MCLIM_REDZONE;
+  asm_setup_target(as);
+
+  do {
+    as->mcp = as->mctop;
+#ifdef LUA_USE_ASSERT
+    as->mcp_prev = as->mcp;
+#endif
+    as->curins = T->nins;
+    RA_DBG_START();
+    RA_DBGX((as, "===== STOP ====="));
+
+    /* General trace setup. Emit tail of trace. */
+    asm_tail_prep(as);
+    as->mcloop = NULL;
+    as->flagmcp = NULL;
+    as->topslot = 0;
+    as->gcsteps = 0;
+    as->sectref = as->loopref;
+    as->fuseref = (as->flags & JIT_F_OPT_FUSE) ? as->loopref : FUSE_DISABLED;
+    asm_setup_regsp(as);
+    if (!as->loopref)
+      asm_tail_link(as);
+
+    /* Assemble a trace in linear backwards order. */
+    for (as->curins--; as->curins > as->stopins; as->curins--) {
+      IRIns *ir = IR(as->curins);
+      lua_assert(!(LJ_32 && irt_isint64(ir->t)));  /* Handled by SPLIT. */
+      if (!ra_used(ir) && !ir_sideeff(ir) && (as->flags & JIT_F_OPT_DCE))
+	continue;  /* Dead-code elimination can be soooo easy. */
+      if (irt_isguard(ir->t))
+	asm_snap_prep(as);
+      RA_DBG_REF();
+      checkmclim(as);
+      asm_ir(as, ir);
+    }
+  } while (as->realign);  /* Retry in case the MCode needs to be realigned. */
+
+  /* Emit head of trace. */
+  RA_DBG_REF();
+  checkmclim(as);
+  if (as->gcsteps > 0) {
+    as->curins = as->T->snap[0].ref;
+    asm_snap_prep(as);  /* The GC check is a guard. */
+    asm_gc_check(as);
+  }
+  ra_evictk(as);
+  if (as->parent)
+    asm_head_side(as);
+  else
+    asm_head_root(as);
+  asm_phi_fixup(as);
+
+  RA_DBGX((as, "===== START ===="));
+  RA_DBG_FLUSH();
+  if (as->freeset != RSET_ALL)
+    lj_trace_err(as->J, LJ_TRERR_BADRA);  /* Ouch! Should never happen. */
+
+  /* Set trace entry point before fixing up tail to allow link to self. */
+  T->mcode = as->mcp;
+  T->mcloop = as->mcloop ? (MSize)((char *)as->mcloop - (char *)as->mcp) : 0;
+  if (!as->loopref)
+    asm_tail_fixup(as, T->link);  /* Note: this may change as->mctop! */
+  T->szmcode = (MSize)((char *)as->mctop - (char *)as->mcp);
+  lj_mcode_sync(T->mcode, origtop);
+}
+
+#undef IR
+
+#endif
diff --git a/lib/luajit/src/lj_asm.h b/lib/luajit/src/lj_asm.h
new file mode 100644
index 00000000..f5d0159b
--- /dev/null
+++ b/lib/luajit/src/lj_asm.h
@@ -0,0 +1,17 @@
+/*
+** IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_ASM_H
+#define _LJ_ASM_H
+
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+LJ_FUNC void lj_asm_trace(jit_State *J, GCtrace *T);
+LJ_FUNC void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno,
+			      MCode *target);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_asm_arm.h b/lib/luajit/src/lj_asm_arm.h
new file mode 100644
index 00000000..72f205d9
--- /dev/null
+++ b/lib/luajit/src/lj_asm_arm.h
@@ -0,0 +1,2361 @@
+/*
+** ARM IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate a scratch register pair. */
+static Reg ra_scratchpair(ASMState *as, RegSet allow)
+{
+  RegSet pick1 = as->freeset & allow;
+  RegSet pick2 = pick1 & (pick1 >> 1) & RSET_GPREVEN;
+  Reg r;
+  if (pick2) {
+    r = rset_picktop(pick2);
+  } else {
+    RegSet pick = pick1 & (allow >> 1) & RSET_GPREVEN;
+    if (pick) {
+      r = rset_picktop(pick);
+      ra_restore(as, regcost_ref(as->cost[r+1]));
+    } else {
+      pick = pick1 & (allow << 1) & RSET_GPRODD;
+      if (pick) {
+	r = ra_restore(as, regcost_ref(as->cost[rset_picktop(pick)-1]));
+      } else {
+	r = ra_evict(as, allow & (allow >> 1) & RSET_GPREVEN);
+	ra_restore(as, regcost_ref(as->cost[r+1]));
+      }
+    }
+  }
+  lua_assert(rset_test(RSET_GPREVEN, r));
+  ra_modified(as, r);
+  ra_modified(as, r+1);
+  RA_DBGX((as, "scratchpair    $r $r", r, r+1));
+  return r;
+}
+
+#if !LJ_SOFTFP
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_allocref(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_allocref(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_allocref(as, ir->op2, allow);
+    left = ra_alloc1(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_allocref(as, ir->op1, allow);
+    right = ra_alloc1(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+#endif
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Generate an exit stub group at the bottom of the reserved MCode memory. */
+static MCode *asm_exitstub_gen(ASMState *as, ExitNo group)
+{
+  MCode *mxp = as->mcbot;
+  int i;
+  if (mxp + 4*4+4*EXITSTUBS_PER_GROUP >= as->mctop)
+    asm_mclimit(as);
+  /* str lr, [sp]; bl ->vm_exit_handler; .long DISPATCH_address, group. */
+  *mxp++ = ARMI_STR|ARMI_LS_P|ARMI_LS_U|ARMF_D(RID_LR)|ARMF_N(RID_SP);
+  *mxp = ARMI_BL|((((MCode *)(void *)lj_vm_exit_handler-mxp)-2)&0x00ffffffu);
+  mxp++;
+  *mxp++ = (MCode)i32ptr(J2GG(as->J)->dispatch);  /* DISPATCH address */
+  *mxp++ = group*EXITSTUBS_PER_GROUP;
+  for (i = 0; i < EXITSTUBS_PER_GROUP; i++)
+    *mxp++ = ARMI_B|((-6-i)&0x00ffffffu);
+  lj_mcode_sync(as->mcbot, mxp);
+  lj_mcode_commitbot(as->J, mxp);
+  as->mcbot = mxp;
+  as->mclim = as->mcbot + MCLIM_REDZONE;
+  return mxp - EXITSTUBS_PER_GROUP;
+}
+
+/* Setup all needed exit stubs. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  if (nexits >= EXITSTUBS_PER_GROUP*LJ_MAX_EXITSTUBGR)
+    lj_trace_err(as->J, LJ_TRERR_SNAPOV);
+  for (i = 0; i < (nexits+EXITSTUBS_PER_GROUP-1)/EXITSTUBS_PER_GROUP; i++)
+    if (as->J->exitstubgroup[i] == NULL)
+      as->J->exitstubgroup[i] = asm_exitstub_gen(as, i);
+}
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guardcc(ASMState *as, ARMCC cc)
+{
+  MCode *target = exitstub_addr(as->J, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = ARMI_BL | ((target-p-2) & 0x00ffffffu);
+    emit_branch(as, ARMF_CC(ARMI_B, cc^1), p+1);
+    return;
+  }
+  emit_branch(as, ARMF_CC(ARMI_BL, cc), target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow,
+			  int lim)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (ofs > -lim && ofs < lim) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (ofs < lim) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	int32_t ofs = i32ptr(&gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.tv);
+	*ofsp = (ofs & 255);  /* Mask out less bits to allow LDRD. */
+	return ra_allock(as, (ofs & ~255), allow);
+      }
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse m operand into arithmetic/logic instructions. */
+static uint32_t asm_fuseopm(ASMState *as, ARMIns ai, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_hasreg(ir->r)) {
+    ra_noweak(as, ir->r);
+    return ARMF_M(ir->r);
+  } else if (irref_isk(ref)) {
+    uint32_t k = emit_isk12(ai, ir->i);
+    if (k)
+      return k;
+  } else if (mayfuse(as, ref)) {
+    if (ir->o >= IR_BSHL && ir->o <= IR_BROR) {
+      Reg m = ra_alloc1(as, ir->op1, allow);
+      ARMShift sh = ir->o == IR_BSHL ? ARMSH_LSL :
+		    ir->o == IR_BSHR ? ARMSH_LSR :
+		    ir->o == IR_BSAR ? ARMSH_ASR : ARMSH_ROR;
+      if (irref_isk(ir->op2)) {
+	return m | ARMF_SH(sh, (IR(ir->op2)->i & 31));
+      } else {
+	Reg s = ra_alloc1(as, ir->op2, rset_exclude(allow, m));
+	return m | ARMF_RSH(sh, s);
+      }
+    } else if (ir->o == IR_ADD && ir->op1 == ir->op2) {
+      Reg m = ra_alloc1(as, ir->op1, allow);
+      return m | ARMF_SH(ARMSH_LSL, 1);
+    }
+  }
+  return ra_allocref(as, ref, allow);
+}
+
+/* Fuse shifts into loads/stores. Only bother with BSHL 2 => lsl #2. */
+static IRRef asm_fuselsl2(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r) && mayfuse(as, ref) && ir->o == IR_BSHL &&
+      irref_isk(ir->op2) && IR(ir->op2)->i == 2)
+    return ir->op1;
+  return 0;  /* No fusion. */
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, ARMIns ai, Reg rd, IRRef ref,
+			 RegSet allow, int32_t ofs)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    int32_t lim = (!LJ_SOFTFP && (ai & 0x08000000)) ? 1024 :
+		   (ai & 0x04000000) ? 4096 : 256;
+    if (ir->o == IR_ADD) {
+      int32_t ofs2;
+      if (irref_isk(ir->op2) &&
+	  (ofs2 = ofs + IR(ir->op2)->i) > -lim && ofs2 < lim &&
+	  (!(!LJ_SOFTFP && (ai & 0x08000000)) || !(ofs2 & 3))) {
+	ofs = ofs2;
+	ref = ir->op1;
+      } else if (ofs == 0 && !(!LJ_SOFTFP && (ai & 0x08000000))) {
+	IRRef lref = ir->op1, rref = ir->op2;
+	Reg rn, rm;
+	if ((ai & 0x04000000)) {
+	  IRRef sref = asm_fuselsl2(as, rref);
+	  if (sref) {
+	    rref = sref;
+	    ai |= ARMF_SH(ARMSH_LSL, 2);
+	  } else if ((sref = asm_fuselsl2(as, lref)) != 0) {
+	    lref = rref;
+	    rref = sref;
+	    ai |= ARMF_SH(ARMSH_LSL, 2);
+	  }
+	}
+	rn = ra_alloc1(as, lref, allow);
+	rm = ra_alloc1(as, rref, rset_exclude(allow, rn));
+	if ((ai & 0x04000000)) ai |= ARMI_LS_R;
+	emit_dnm(as, ai|ARMI_LS_P|ARMI_LS_U, rd, rn, rm);
+	return;
+      }
+    } else if (ir->o == IR_STRREF && !(!LJ_SOFTFP && (ai & 0x08000000))) {
+      lua_assert(ofs == 0);
+      ofs = (int32_t)sizeof(GCstr);
+      if (irref_isk(ir->op2)) {
+	ofs += IR(ir->op2)->i;
+	ref = ir->op1;
+      } else if (irref_isk(ir->op1)) {
+	ofs += IR(ir->op1)->i;
+	ref = ir->op2;
+      } else {
+	/* NYI: Fuse ADD with constant. */
+	Reg rn = ra_alloc1(as, ir->op1, allow);
+	uint32_t m = asm_fuseopm(as, 0, ir->op2, rset_exclude(allow, rn));
+	if ((ai & 0x04000000))
+	  emit_lso(as, ai, rd, rd, ofs);
+	else
+	  emit_lsox(as, ai, rd, rd, ofs);
+	emit_dn(as, ARMI_ADD^m, rd, rn);
+	return;
+      }
+      if (ofs <= -lim || ofs >= lim) {
+	Reg rn = ra_alloc1(as, ref, allow);
+	Reg rm = ra_allock(as, ofs, rset_exclude(allow, rn));
+	if ((ai & 0x04000000)) ai |= ARMI_LS_R;
+	emit_dnm(as, ai|ARMI_LS_P|ARMI_LS_U, rd, rn, rm);
+	return;
+      }
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+#if !LJ_SOFTFP
+  if ((ai & 0x08000000))
+    emit_vlso(as, ai, rd, base, ofs);
+  else
+#endif
+  if ((ai & 0x04000000))
+    emit_lso(as, ai, rd, base, ofs);
+  else
+    emit_lsox(as, ai, rd, base, ofs);
+}
+
+#if !LJ_SOFTFP
+/* Fuse to multiply-add/sub instruction. */
+static int asm_fusemadd(ASMState *as, IRIns *ir, ARMIns ai, ARMIns air)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  IRIns *irm;
+  if (lref != rref &&
+      ((mayfuse(as, lref) && (irm = IR(lref), irm->o == IR_MUL) &&
+	ra_noreg(irm->r)) ||
+       (mayfuse(as, rref) && (irm = IR(rref), irm->o == IR_MUL) &&
+	(rref = lref, ai = air, ra_noreg(irm->r))))) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg add = ra_hintalloc(as, rref, dest, RSET_FPR);
+    Reg right, left = ra_alloc2(as, irm,
+			rset_exclude(rset_exclude(RSET_FPR, dest), add));
+    right = (left >> 8); left &= 255;
+    emit_dnm(as, ai, (dest & 15), (left & 15), (right & 15));
+    if (dest != add) emit_dm(as, ARMI_VMOV_D, (dest & 15), (add & 15));
+    return 1;
+  }
+  return 0;
+}
+#endif
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_NARGS(ci);
+  int32_t ofs = 0;
+#if LJ_SOFTFP
+  Reg gpr = REGARG_FIRSTGPR;
+#else
+  Reg gpr, fpr = REGARG_FIRSTFPR, fprodd = 0;
+#endif
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func);
+#if !LJ_SOFTFP
+  for (gpr = REGARG_FIRSTGPR; gpr <= REGARG_LASTGPR; gpr++)
+    as->cost[gpr] = REGCOST(~0u, ASMREF_L);
+  gpr = REGARG_FIRSTGPR;
+#endif
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    IRIns *ir = IR(ref);
+#if !LJ_SOFTFP
+    if (ref && irt_isfp(ir->t)) {
+      RegSet of = as->freeset;
+      Reg src;
+      if (!LJ_ABI_SOFTFP && !(ci->flags & CCI_VARARG)) {
+	if (irt_isnum(ir->t)) {
+	  if (fpr <= REGARG_LASTFPR) {
+	    ra_leftov(as, fpr, ref);
+	    fpr++;
+	    continue;
+	  }
+	} else if (fprodd) {  /* Ick. */
+	  src = ra_alloc1(as, ref, RSET_FPR);
+	  emit_dm(as, ARMI_VMOV_S, (fprodd & 15), (src & 15) | 0x00400000);
+	  fprodd = 0;
+	  continue;
+	} else if (fpr <= REGARG_LASTFPR) {
+	  ra_leftov(as, fpr, ref);
+	  fprodd = fpr++;
+	  continue;
+	}
+	/* Workaround to protect argument GPRs from being used for remat. */
+	as->freeset &= ~RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1);
+	src = ra_alloc1(as, ref, RSET_FPR);  /* May alloc GPR to remat FPR. */
+	as->freeset |= (of & RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1));
+	fprodd = 0;
+	goto stackfp;
+      }
+      /* Workaround to protect argument GPRs from being used for remat. */
+      as->freeset &= ~RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1);
+      src = ra_alloc1(as, ref, RSET_FPR);  /* May alloc GPR to remat FPR. */
+      as->freeset |= (of & RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1));
+      if (irt_isnum(ir->t)) gpr = (gpr+1) & ~1u;
+      if (gpr <= REGARG_LASTGPR) {
+	lua_assert(rset_test(as->freeset, gpr));  /* Must have been evicted. */
+	if (irt_isnum(ir->t)) {
+	  lua_assert(rset_test(as->freeset, gpr+1));  /* Ditto. */
+	  emit_dnm(as, ARMI_VMOV_RR_D, gpr, gpr+1, (src & 15));
+	  gpr += 2;
+	} else {
+	  emit_dn(as, ARMI_VMOV_R_S, gpr, (src & 15));
+	  gpr++;
+	}
+      } else {
+      stackfp:
+	if (irt_isnum(ir->t)) ofs = (ofs + 4) & ~4;
+	emit_spstore(as, ir, src, ofs);
+	ofs += irt_isnum(ir->t) ? 8 : 4;
+      }
+    } else
+#endif
+    {
+      if (gpr <= REGARG_LASTGPR) {
+	lua_assert(rset_test(as->freeset, gpr));  /* Must have been evicted. */
+	if (ref) ra_leftov(as, gpr, ref);
+	gpr++;
+      } else {
+	if (ref) {
+	  Reg r = ra_alloc1(as, ref, RSET_GPR);
+	  emit_spstore(as, ir, r, ofs);
+	}
+	ofs += 4;
+      }
+    }
+  }
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP);
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lua_assert(!irt_ispri(ir->t));
+    if (!LJ_SOFTFP && irt_isfp(ir->t)) {
+      if (LJ_ABI_SOFTFP || (ci->flags & (CCI_CASTU64|CCI_VARARG))) {
+	Reg dest = (ra_dest(as, ir, RSET_FPR) & 15);
+	if (irt_isnum(ir->t))
+	  emit_dnm(as, ARMI_VMOV_D_RR, RID_RETLO, RID_RETHI, dest);
+	else
+	  emit_dn(as, ARMI_VMOV_S_R, RID_RET, dest);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+  UNUSED(ci);
+}
+
+static void asm_call(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX];
+  const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+  asm_collectargs(as, ir, ci, args);
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(void *)(irf->i);
+  } else {  /* Need a non-argument register for indirect calls. */
+    Reg freg = ra_alloc1(as, func, RSET_RANGE(RID_R4, RID_R12+1));
+    emit_m(as, ARMI_BLXr, freg);
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  /* Need to force a spill on REF_BASE now to update the stack slot. */
+  emit_lso(as, ARMI_STR, base, RID_SP, ra_spill(as, IR(REF_BASE)));
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+  emit_nm(as, ARMI_CMP, RID_TMP,
+	  ra_allock(as, i32ptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_lso(as, ARMI_LDR, RID_TMP, base, -4);
+}
+
+/* -- Type conversions ---------------------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_guardcc(as, CC_NE);
+  emit_d(as, ARMI_VMRS, 0);
+  emit_dm(as, ARMI_VCMP_D, (tmp & 15), (left & 15));
+  emit_dm(as, ARMI_VCVT_F64_S32, (tmp & 15), (tmp & 15));
+  emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+  emit_dm(as, ARMI_VCVT_S32_F64, (tmp & 15), (left & 15));
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+  emit_dnm(as, ARMI_VADD_D, (tmp & 15), (left & 15), (right & 15));
+}
+#endif
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if !LJ_SOFTFP
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+#endif
+  IRRef lref = ir->op1;
+  /* 64 bit integer conversions are handled by SPLIT. */
+  lua_assert(!irt_isint64(ir->t) && !(st == IRT_I64 || st == IRT_U64));
+#if LJ_SOFTFP
+  /* FP conversions are handled by SPLIT. */
+  lua_assert(!irt_isfp(ir->t) && !(st == IRT_NUM || st == IRT_FLOAT));
+  /* Can't check for same types: SPLIT uses CONV int.int + BXOR for sfp NEG. */
+#else
+  lua_assert(irt_type(ir->t) != st);
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      emit_dm(as, st == IRT_NUM ? ARMI_VCVT_F32_F64 : ARMI_VCVT_F64_F32,
+	      (dest & 15), (ra_alloc1(as, lref, RSET_FPR) & 15));
+    } else {  /* Integer to FP conversion. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      ARMIns ai = irt_isfloat(ir->t) ?
+	(st == IRT_INT ? ARMI_VCVT_F32_S32 : ARMI_VCVT_F32_U32) :
+	(st == IRT_INT ? ARMI_VCVT_F64_S32 : ARMI_VCVT_F64_U32);
+      emit_dm(as, ai, (dest & 15), (dest & 15));
+      emit_dn(as, ARMI_VMOV_S_R, left, (dest & 15));
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lua_assert(irt_isint(ir->t) && st == IRT_NUM);
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      ARMIns ai;
+      emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+      ai = irt_isint(ir->t) ?
+	(st == IRT_NUM ? ARMI_VCVT_S32_F64 : ARMI_VCVT_S32_F32) :
+	(st == IRT_NUM ? ARMI_VCVT_U32_F64 : ARMI_VCVT_U32_F32);
+      emit_dm(as, ai, (tmp & 15), (left & 15));
+    }
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      lua_assert(irt_isint(ir->t) || irt_isu32(ir->t));
+      if ((as->flags & JIT_F_ARMV6)) {
+	ARMIns ai = st == IRT_I8 ? ARMI_SXTB :
+		    st == IRT_U8 ? ARMI_UXTB :
+		    st == IRT_I16 ? ARMI_SXTH : ARMI_UXTH;
+	emit_dm(as, ai, dest, left);
+      } else if (st == IRT_U8) {
+	emit_dn(as, ARMI_AND|ARMI_K12|255, dest, left);
+      } else {
+	uint32_t shift = st == IRT_I8 ? 24 : 16;
+	ARMShift sh = st == IRT_U16 ? ARMSH_LSR : ARMSH_ASR;
+	emit_dm(as, ARMI_MOV|ARMF_SH(sh, shift), dest, RID_TMP);
+	emit_dm(as, ARMI_MOV|ARMF_SH(ARMSH_LSL, shift), RID_TMP, left);
+      }
+    } else {  /* Handle 32/32 bit no-op (cast). */
+      ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    }
+  }
+}
+
+#if !LJ_SOFTFP && LJ_HASFFI
+static void asm_conv64(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)((ir-1)->op2 & IRCONV_SRCMASK);
+  IRType dt = (((ir-1)->op2 & IRCONV_DSTMASK) >> IRCONV_DSH);
+  IRCallID id;
+  CCallInfo ci;
+  IRRef args[2];
+  args[0] = (ir-1)->op1;
+  args[1] = ir->op1;
+  if (st == IRT_NUM || st == IRT_FLOAT) {
+    id = IRCALL_fp64_d2l + ((st == IRT_FLOAT) ? 2 : 0) + (dt - IRT_I64);
+    ir--;
+  } else {
+    id = IRCALL_fp64_l2d + ((dt == IRT_FLOAT) ? 2 : 0) + (st - IRT_I64);
+  }
+  ci = lj_ir_callinfo[id];
+#if !LJ_ABI_SOFTFP
+  ci.flags |= CCI_VARARG;  /* These calls don't use the hard-float ABI! */
+#endif
+  asm_setupresult(as, ir, &ci);
+  asm_gencall(as, &ci, args);
+}
+#endif
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  Reg rlo = 0, rhi = 0, tmp;
+  int destused = ra_used(ir);
+  int32_t ofs = 0;
+  ra_evictset(as, RSET_SCRATCH);
+#if LJ_SOFTFP
+  if (destused) {
+    if (ra_hasspill(ir->s) && ra_hasspill((ir+1)->s) &&
+	(ir->s & 1) == 0 && ir->s + 1 == (ir+1)->s) {
+      int i;
+      for (i = 0; i < 2; i++) {
+	Reg r = (ir+i)->r;
+	if (ra_hasreg(r)) {
+	  ra_free(as, r);
+	  ra_modified(as, r);
+	  emit_spload(as, ir+i, r, sps_scale((ir+i)->s));
+	}
+      }
+      ofs = sps_scale(ir->s);
+      destused = 0;
+    } else {
+      rhi = ra_dest(as, ir+1, RSET_GPR);
+      rlo = ra_dest(as, ir, rset_exclude(RSET_GPR, rhi));
+    }
+  }
+  asm_guardcc(as, CC_EQ);
+  if (destused) {
+    emit_lso(as, ARMI_LDR, rhi, RID_SP, 4);
+    emit_lso(as, ARMI_LDR, rlo, RID_SP, 0);
+  }
+#else
+  UNUSED(rhi);
+  if (destused) {
+    if (ra_hasspill(ir->s)) {
+      ofs = sps_scale(ir->s);
+      destused = 0;
+      if (ra_hasreg(ir->r)) {
+	ra_free(as, ir->r);
+	ra_modified(as, ir->r);
+	emit_spload(as, ir, ir->r, ofs);
+      }
+    } else {
+      rlo = ra_dest(as, ir, RSET_FPR);
+    }
+  }
+  asm_guardcc(as, CC_EQ);
+  if (destused)
+    emit_vlso(as, ARMI_VLDR_D, rlo, RID_SP, 0);
+#endif
+  emit_n(as, ARMI_CMP|ARMI_K12|0, RID_RET);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  tmp = ra_releasetmp(as, ASMREF_TMP1);
+  if (ofs == 0)
+    emit_dm(as, ARMI_MOV, tmp, RID_SP);
+  else
+    emit_opk(as, ARMI_ADD, tmp, RID_SP, ofs, RSET_GPR);
+}
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (irt_isnum(ir->t)) {
+    if (irref_isk(ref)) {
+      /* Use the number constant itself as a TValue. */
+      ra_allockreg(as, i32ptr(ir_knum(ir)), dest);
+    } else {
+#if LJ_SOFTFP
+      lua_assert(0);
+#else
+      /* Otherwise force a spill and use the spill slot. */
+      emit_opk(as, ARMI_ADD, dest, RID_SP, ra_spill(as, ir), RSET_GPR);
+#endif
+    }
+  } else {
+    /* Otherwise use [sp] and [sp+4] to hold the TValue. */
+    RegSet allow = rset_exclude(RSET_GPR, dest);
+    Reg type;
+    emit_dm(as, ARMI_MOV, dest, RID_SP);
+    if (!irt_ispri(ir->t)) {
+      Reg src = ra_alloc1(as, ref, allow);
+      emit_lso(as, ARMI_STR, src, RID_SP, 0);
+    }
+    if ((ir+1)->o == IR_HIOP)
+      type = ra_alloc1(as, ref+1, allow);
+    else
+      type = ra_allock(as, irt_toitype(ir->t), allow);
+    emit_lso(as, ARMI_STR, type, RID_SP, 4);
+  }
+}
+
+static void asm_tostr(ASMState *as, IRIns *ir)
+{
+  IRRef args[2];
+  args[0] = ASMREF_L;
+  as->gcsteps++;
+  if (irt_isnum(IR(ir->op1)->t) || (ir+1)->o == IR_HIOP) {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromnum];
+    args[1] = ASMREF_TMP1;  /* const lua_Number * */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+    asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op1);
+  } else {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromint];
+    args[1] = ir->op1;  /* int32_t k */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+  }
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    uint32_t k = emit_isk12(ARMI_ADD, ofs + 8*IR(ir->op2)->i);
+    if (k) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_dn(as, ARMI_ADD^k, dest, base);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+  emit_dnm(as, ARMI_ADD|ARMF_SH(ARMSH_LSL, 3), dest, base, idx);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = 0, keyhi = 0, keynumhi = RID_NONE, tmp = RID_TMP;
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  IRType1 kt = irkey->t;
+  int32_t k = 0, khi = emit_isk12(ARMI_CMP, irt_toitype(kt));
+  uint32_t khash;
+  MCLabel l_end, l_loop;
+  rset_clear(allow, tab);
+  if (!irref_isk(refkey) || irt_isstr(kt)) {
+#if LJ_SOFTFP
+    key = ra_alloc1(as, refkey, allow);
+    rset_clear(allow, key);
+    if (irkey[1].o == IR_HIOP) {
+      if (ra_hasreg((irkey+1)->r)) {
+	keynumhi = (irkey+1)->r;
+	keyhi = RID_TMP;
+	ra_noweak(as, keynumhi);
+      } else {
+	keyhi = keynumhi = ra_allocref(as, refkey+1, allow);
+      }
+      rset_clear(allow, keynumhi);
+      khi = 0;
+    }
+#else
+    if (irt_isnum(kt)) {
+      key = ra_scratch(as, allow);
+      rset_clear(allow, key);
+      keyhi = keynumhi = ra_scratch(as, allow);
+      rset_clear(allow, keyhi);
+      khi = 0;
+    } else {
+      key = ra_alloc1(as, refkey, allow);
+      rset_clear(allow, key);
+    }
+#endif
+  } else if (irt_isnum(kt)) {
+    int32_t val = (int32_t)ir_knum(irkey)->u32.lo;
+    k = emit_isk12(ARMI_CMP, val);
+    if (!k) {
+      key = ra_allock(as, val, allow);
+      rset_clear(allow, key);
+    }
+    val = (int32_t)ir_knum(irkey)->u32.hi;
+    khi = emit_isk12(ARMI_CMP, val);
+    if (!khi) {
+      keyhi = ra_allock(as, val, allow);
+      rset_clear(allow, keyhi);
+    }
+  } else if (!irt_ispri(kt)) {
+    k = emit_isk12(ARMI_CMP, irkey->i);
+    if (!k) {
+      key = ra_alloc1(as, refkey, allow);
+      rset_clear(allow, key);
+    }
+  }
+  if (!irt_ispri(kt))
+    tmp = ra_scratchpair(as, allow);
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  as->invmcp = NULL;
+  if (merge == IR_NE)
+    asm_guardcc(as, CC_AL);
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+
+  /* Follow hash chain until the end. */
+  l_loop = --as->mcp;
+  emit_n(as, ARMI_CMP|ARMI_K12|0, dest);
+  emit_lso(as, ARMI_LDR, dest, dest, (int32_t)offsetof(Node, next));
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ)
+    asm_guardcc(as, CC_EQ);
+  else
+    emit_branch(as, ARMF_CC(ARMI_B, CC_EQ), l_end);
+  if (!irt_ispri(kt)) {
+    emit_nm(as, ARMF_CC(ARMI_CMP, CC_EQ)^k, tmp, key);
+    emit_nm(as, ARMI_CMP^khi, tmp+1, keyhi);
+    emit_lsox(as, ARMI_LDRD, tmp, dest, (int32_t)offsetof(Node, key));
+  } else {
+    emit_n(as, ARMI_CMP^khi, tmp);
+    emit_lso(as, ARMI_LDR, tmp, dest, (int32_t)offsetof(Node, key.it));
+  }
+  *l_loop = ARMF_CC(ARMI_B, CC_NE) | ((as->mcp-l_loop-2) & 0x00ffffffu);
+
+  /* Load main position relative to tab->node into dest. */
+  khash = irref_isk(refkey) ? ir_khash(irkey) : 1;
+  if (khash == 0) {
+    emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+  } else {
+    emit_dnm(as, ARMI_ADD|ARMF_SH(ARMSH_LSL, 3), dest, dest, tmp);
+    emit_dnm(as, ARMI_ADD|ARMF_SH(ARMSH_LSL, 1), tmp, tmp, tmp);
+    if (irt_isstr(kt)) {  /* Fetch of str->hash is cheaper than ra_allock. */
+      emit_dnm(as, ARMI_AND, tmp, tmp+1, RID_TMP);
+      emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+      emit_lso(as, ARMI_LDR, tmp+1, key, (int32_t)offsetof(GCstr, hash));
+      emit_lso(as, ARMI_LDR, RID_TMP, tab, (int32_t)offsetof(GCtab, hmask));
+    } else if (irref_isk(refkey)) {
+      emit_opk(as, ARMI_AND, tmp, RID_TMP, (int32_t)khash,
+	       rset_exclude(rset_exclude(RSET_GPR, tab), dest));
+      emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+      emit_lso(as, ARMI_LDR, RID_TMP, tab, (int32_t)offsetof(GCtab, hmask));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      if (ra_hasreg(keynumhi)) {  /* Canonicalize +-0.0 to 0.0. */
+	if (keyhi == RID_TMP)
+	  emit_dm(as, ARMF_CC(ARMI_MOV, CC_NE), keyhi, keynumhi);
+	emit_d(as, ARMF_CC(ARMI_MOV, CC_EQ)|ARMI_K12|0, keyhi);
+      }
+      emit_dnm(as, ARMI_AND, tmp, tmp, RID_TMP);
+      emit_dnm(as, ARMI_SUB|ARMF_SH(ARMSH_ROR, 32-HASH_ROT3), tmp, tmp, tmp+1);
+      emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+      emit_dnm(as, ARMI_EOR|ARMF_SH(ARMSH_ROR, 32-((HASH_ROT2+HASH_ROT1)&31)),
+	       tmp, tmp+1, tmp);
+      emit_lso(as, ARMI_LDR, RID_TMP, tab, (int32_t)offsetof(GCtab, hmask));
+      emit_dnm(as, ARMI_SUB|ARMF_SH(ARMSH_ROR, 32-HASH_ROT1), tmp+1, tmp+1, tmp);
+      if (ra_hasreg(keynumhi)) {
+	emit_dnm(as, ARMI_EOR, tmp+1, tmp, key);
+	emit_dnm(as, ARMI_ORR|ARMI_S, RID_TMP, tmp, key);  /* Test for +-0.0. */
+	emit_dnm(as, ARMI_ADD, tmp, keynumhi, keynumhi);
+#if !LJ_SOFTFP
+	emit_dnm(as, ARMI_VMOV_RR_D, key, keynumhi,
+		 (ra_alloc1(as, refkey, RSET_FPR) & 15));
+#endif
+      } else {
+	emit_dnm(as, ARMI_EOR, tmp+1, tmp, key);
+	emit_opk(as, ARMI_ADD, tmp, key, (int32_t)HASH_BIAS,
+		 rset_exclude(rset_exclude(RSET_GPR, tab), key));
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  Reg dest = (ra_used(ir) || ofs > 4095) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg key = RID_NONE, type = RID_TMP, idx = node;
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  lua_assert(ofs % sizeof(Node) == 0);
+  if (ofs > 4095) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_opk(as, ARMI_ADD, dest, node, ofs, allow);
+  }
+  asm_guardcc(as, CC_NE);
+  if (!irt_ispri(irkey->t)) {
+    RegSet even = (as->freeset & allow);
+    even = even & (even >> 1) & RSET_GPREVEN;
+    if (even) {
+      key = ra_scratch(as, even);
+      if (rset_test(as->freeset, key+1)) {
+	type = key+1;
+	ra_modified(as, type);
+      }
+    } else {
+      key = ra_scratch(as, allow);
+    }
+    rset_clear(allow, key);
+  }
+  rset_clear(allow, type);
+  if (irt_isnum(irkey->t)) {
+    emit_opk(as, ARMF_CC(ARMI_CMP, CC_EQ), 0, type,
+	     (int32_t)ir_knum(irkey)->u32.hi, allow);
+    emit_opk(as, ARMI_CMP, 0, key,
+	     (int32_t)ir_knum(irkey)->u32.lo, allow);
+  } else {
+    if (ra_hasreg(key))
+      emit_opk(as, ARMF_CC(ARMI_CMP, CC_EQ), 0, key, irkey->i, allow);
+    emit_n(as, ARMI_CMN|ARMI_K12|-irt_toitype(irkey->t), type);
+  }
+  emit_lso(as, ARMI_LDR, type, idx, kofs+4);
+  if (ra_hasreg(key)) emit_lso(as, ARMI_LDR, key, idx, kofs);
+  if (ofs > 4095)
+    emit_opk(as, ARMI_ADD, dest, node, ofs, RSET_GPR);
+}
+
+static void asm_newref(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
+  IRRef args[3];
+  if (ir->r == RID_SINK)
+    return;
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ir->op1;      /* GCtab *t     */
+  args[2] = ASMREF_TMP1;  /* cTValue *key */
+  asm_setupresult(as, ir, ci);  /* TValue * */
+  asm_gencall(as, ci, args);
+  asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op2);
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  /* NYI: Check that UREFO is still open and not aliasing a slot. */
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, ARMI_LDR, dest, v);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guardcc(as, CC_NE);
+      emit_n(as, ARMI_CMP|ARMI_K12|1, RID_TMP);
+      emit_opk(as, ARMI_ADD, dest, uv,
+	       (int32_t)offsetof(GCupval, tv), RSET_GPR);
+      emit_lso(as, ARMI_LDRB, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_lso(as, ARMI_LDR, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_lso(as, ARMI_LDR, uv, func,
+	     (int32_t)offsetof(GCfuncL, uvptr) + 4*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lua_assert(!ra_used(ir));
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRRef ref = ir->op2, refk = ir->op1;
+  Reg r;
+  if (irref_isk(ref)) {
+    IRRef tmp = refk; refk = ref; ref = tmp;
+  } else if (!irref_isk(refk)) {
+    uint32_t k, m = ARMI_K12|sizeof(GCstr);
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    IRIns *irr = IR(ir->op2);
+    if (ra_hasreg(irr->r)) {
+      ra_noweak(as, irr->r);
+      right = irr->r;
+    } else if (mayfuse(as, irr->op2) &&
+	       irr->o == IR_ADD && irref_isk(irr->op2) &&
+	       (k = emit_isk12(ARMI_ADD,
+			       (int32_t)sizeof(GCstr) + IR(irr->op2)->i))) {
+      m = k;
+      right = ra_alloc1(as, irr->op1, rset_exclude(RSET_GPR, left));
+    } else {
+      right = ra_allocref(as, ir->op2, rset_exclude(RSET_GPR, left));
+    }
+    emit_dn(as, ARMI_ADD^m, dest, dest);
+    emit_dnm(as, ARMI_ADD, dest, left, right);
+    return;
+  }
+  r = ra_alloc1(as, ref, RSET_GPR);
+  emit_opk(as, ARMI_ADD, dest, r,
+	   sizeof(GCstr) + IR(refk)->i, rset_exclude(RSET_GPR, r));
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static ARMIns asm_fxloadins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return ARMI_LDRSB;
+  case IRT_U8: return ARMI_LDRB;
+  case IRT_I16: return ARMI_LDRSH;
+  case IRT_U16: return ARMI_LDRH;
+  case IRT_NUM: lua_assert(!LJ_SOFTFP); return ARMI_VLDR_D;
+  case IRT_FLOAT: if (!LJ_SOFTFP) return ARMI_VLDR_S;
+  default: return ARMI_LDR;
+  }
+}
+
+static ARMIns asm_fxstoreins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return ARMI_STRB;
+  case IRT_I16: case IRT_U16: return ARMI_STRH;
+  case IRT_NUM: lua_assert(!LJ_SOFTFP); return ARMI_VSTR_D;
+  case IRT_FLOAT: if (!LJ_SOFTFP) return ARMI_VSTR_S;
+  default: return ARMI_STR;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx = ra_alloc1(as, ir->op1, RSET_GPR);
+  ARMIns ai = asm_fxloadins(ir);
+  int32_t ofs;
+  if (ir->op2 == IRFL_TAB_ARRAY) {
+    ofs = asm_fuseabase(as, ir->op1);
+    if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+      emit_dn(as, ARMI_ADD|ARMI_K12|ofs, dest, idx);
+      return;
+    }
+  }
+  ofs = field_ofs[ir->op2];
+  if ((ai & 0x04000000))
+    emit_lso(as, ai, dest, idx, ofs);
+  else
+    emit_lsox(as, ai, dest, idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    ARMIns ai = asm_fxstoreins(ir);
+    if ((ai & 0x04000000))
+      emit_lso(as, ai, src, idx, ofs);
+    else
+      emit_lsox(as, ai, src, idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir,
+		     (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+  lua_assert(!(ir->op2 & IRXLOAD_UNALIGNED));
+  asm_fusexref(as, asm_fxloadins(ir), dest, ir->op1, RSET_GPR, 0);
+}
+
+static void asm_xstore(ASMState *as, IRIns *ir, int32_t ofs)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2,
+			(!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src), ofs);
+  }
+}
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+  IRType t = hiop ? IRT_NUM : irt_type(ir->t);
+  Reg dest = RID_NONE, type = RID_NONE, idx;
+  RegSet allow = RSET_GPR;
+  int32_t ofs = 0;
+  if (hiop && ra_used(ir+1)) {
+    type = ra_dest(as, ir+1, allow);
+    rset_clear(allow, type);
+  }
+  if (ra_used(ir)) {
+    lua_assert((LJ_SOFTFP ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && t == IRT_NUM) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow,
+		       (!LJ_SOFTFP && t == IRT_NUM) ? 1024 : 4096);
+  if (!hiop || type == RID_NONE) {
+    rset_clear(allow, idx);
+    if (ofs < 256 && ra_hasreg(dest) && (dest & 1) == 0 &&
+	rset_test((as->freeset & allow), dest+1)) {
+      type = dest+1;
+      ra_modified(as, type);
+    } else {
+      type = RID_TMP;
+    }
+  }
+  asm_guardcc(as, t == IRT_NUM ? CC_HS : CC_NE);
+  emit_n(as, ARMI_CMN|ARMI_K12|-irt_toitype_(t), type);
+  if (ra_hasreg(dest)) {
+#if !LJ_SOFTFP
+    if (t == IRT_NUM)
+      emit_vlso(as, ARMI_VLDR_D, dest, idx, ofs);
+    else
+#endif
+      emit_lso(as, ARMI_LDR, dest, idx, ofs);
+  }
+  emit_lso(as, ARMI_LDR, type, idx, ofs+4);
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    RegSet allow = RSET_GPR;
+    Reg idx, src = RID_NONE, type = RID_NONE;
+    int32_t ofs = 0;
+#if !LJ_SOFTFP
+    if (irt_isnum(ir->t)) {
+      src = ra_alloc1(as, ir->op2, RSET_FPR);
+      idx = asm_fuseahuref(as, ir->op1, &ofs, allow, 1024);
+      emit_vlso(as, ARMI_VSTR_D, src, idx, ofs);
+    } else
+#endif
+    {
+      int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+      if (!irt_ispri(ir->t)) {
+	src = ra_alloc1(as, ir->op2, allow);
+	rset_clear(allow, src);
+      }
+      if (hiop)
+	type = ra_alloc1(as, (ir+1)->op2, allow);
+      else
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      idx = asm_fuseahuref(as, ir->op1, &ofs, rset_exclude(allow, type), 4096);
+      if (ra_hasreg(src)) emit_lso(as, ARMI_STR, src, idx, ofs);
+      emit_lso(as, ARMI_STR, type, idx, ofs+4);
+    }
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+  int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+  IRType t = hiop ? IRT_NUM : irt_type(ir->t);
+  Reg dest = RID_NONE, type = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  lua_assert(!(ir->op2 & IRSLOAD_PARENT));  /* Handled by asm_head_side(). */
+  lua_assert(irt_isguard(ir->t) || !(ir->op2 & IRSLOAD_TYPECHECK));
+#if LJ_SOFTFP
+  lua_assert(!(ir->op2 & IRSLOAD_CONVERT));  /* Handled by LJ_SOFTFP SPLIT. */
+  if (hiop && ra_used(ir+1)) {
+    type = ra_dest(as, ir+1, allow);
+    rset_clear(allow, type);
+  }
+#else
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(ir->t) && t == IRT_INT) {
+    dest = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t = IRT_NUM;  /* Continue with a regular number type check. */
+  } else
+#endif
+  if (ra_used(ir)) {
+    Reg tmp = RID_NONE;
+    if ((ir->op2 & IRSLOAD_CONVERT))
+      tmp = ra_scratch(as, t == IRT_INT ? RSET_FPR : RSET_GPR);
+    lua_assert((LJ_SOFTFP ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && t == IRT_NUM) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+    base = ra_alloc1(as, REF_BASE, allow);
+    if ((ir->op2 & IRSLOAD_CONVERT)) {
+      if (t == IRT_INT) {
+	emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+	emit_dm(as, ARMI_VCVT_S32_F64, (tmp & 15), (tmp & 15));
+	t = IRT_NUM;  /* Check for original type. */
+      } else {
+	emit_dm(as, ARMI_VCVT_F64_S32, (dest & 15), (dest & 15));
+	emit_dn(as, ARMI_VMOV_S_R, tmp, (dest & 15));
+	t = IRT_INT;  /* Check for original type. */
+      }
+      dest = tmp;
+    }
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+dotypecheck:
+  rset_clear(allow, base);
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    if (ra_noreg(type)) {
+      if (ofs < 256 && ra_hasreg(dest) && (dest & 1) == 0 &&
+	  rset_test((as->freeset & allow), dest+1)) {
+	type = dest+1;
+	ra_modified(as, type);
+      } else {
+	type = RID_TMP;
+      }
+    }
+    asm_guardcc(as, t == IRT_NUM ? CC_HS : CC_NE);
+    emit_n(as, ARMI_CMN|ARMI_K12|-irt_toitype_(t), type);
+  }
+  if (ra_hasreg(dest)) {
+#if !LJ_SOFTFP
+    if (t == IRT_NUM) {
+      if (ofs < 1024) {
+	emit_vlso(as, ARMI_VLDR_D, dest, base, ofs);
+      } else {
+	if (ra_hasreg(type)) emit_lso(as, ARMI_LDR, type, base, ofs+4);
+	emit_vlso(as, ARMI_VLDR_D, dest, RID_TMP, 0);
+	emit_opk(as, ARMI_ADD, RID_TMP, base, ofs, allow);
+	return;
+      }
+    } else
+#endif
+      emit_lso(as, ARMI_LDR, dest, base, ofs);
+  }
+  if (ra_hasreg(type)) emit_lso(as, ARMI_LDR, type, base, ofs+4);
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID ctypeid = (CTypeID)IR(ir->op1)->i;
+  CTSize sz = (ir->o == IR_CNEWI || ir->op2 == REF_NIL) ?
+	      lj_ctype_size(cts, ctypeid) : (CTSize)IR(ir->op2)->i;
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[2];
+  RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+  RegSet drop = RSET_SCRATCH;
+  lua_assert(sz != CTSIZE_INVALID);
+
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  as->gcsteps++;
+
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  if (ra_used(ir))
+    ra_destreg(as, ir, RID_RET);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    int32_t ofs = sizeof(GCcdata);
+    lua_assert(sz == 4 || sz == 8);
+    if (sz == 8) {
+      ofs += 4; ir++;
+      lua_assert(ir->o == IR_HIOP);
+    }
+    for (;;) {
+      Reg r = ra_alloc1(as, ir->op2, allow);
+      emit_lso(as, ARMI_STR, r, RID_RET, ofs);
+      rset_clear(allow, r);
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; ir--;
+    }
+  }
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  {
+    uint32_t k = emit_isk12(ARMI_MOV, ctypeid);
+    Reg r = k ? RID_R1 : ra_allock(as, ctypeid, allow);
+    emit_lso(as, ARMI_STRB, RID_TMP, RID_RET, offsetof(GCcdata, gct));
+    emit_lsox(as, ARMI_STRH, r, RID_RET, offsetof(GCcdata, ctypeid));
+    emit_d(as, ARMI_MOV|ARMI_K12|~LJ_TCDATA, RID_TMP);
+    if (k) emit_d(as, ARMI_MOV^k, RID_R1);
+  }
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#else
+#define asm_cnew(as, ir)	((void)0)
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg link = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg gr = ra_allock(as, i32ptr(J2G(as->J)),
+		     rset_exclude(rset_exclude(RSET_GPR, tab), link));
+  Reg mark = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_lso(as, ARMI_STR, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_lso(as, ARMI_STRB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_lso(as, ARMI_STR, tab, gr,
+	   (int32_t)offsetof(global_State, gc.grayagain));
+  emit_dn(as, ARMI_BIC|ARMI_K12|LJ_GC_BLACK, mark, mark);
+  emit_lso(as, ARMI_LDR, link, gr,
+	   (int32_t)offsetof(global_State, gc.grayagain));
+  emit_branch(as, ARMF_CC(ARMI_B, CC_EQ), l_end);
+  emit_n(as, ARMI_TST|ARMI_K12|LJ_GC_BLACK, mark);
+  emit_lso(as, ARMI_LDRB, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lua_assert(IR(ir->op1)->o == IR_UREFC);
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  if ((l_end[-1] >> 28) == CC_AL)
+    l_end[-1] = ARMF_CC(l_end[-1], CC_NE);
+  else
+    emit_branch(as, ARMF_CC(ARMI_B, CC_EQ), l_end);
+  ra_allockreg(as, i32ptr(J2G(as->J)), ra_releasetmp(as, ASMREF_TMP1));
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(RSET_GPR, obj));
+  emit_n(as, ARMF_CC(ARMI_TST, CC_NE)|ARMI_K12|LJ_GC_BLACK, tmp);
+  emit_n(as, ARMI_TST|ARMI_K12|LJ_GC_WHITES, RID_TMP);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_lso(as, ARMI_LDRB, tmp, obj,
+	   (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_lso(as, ARMI_LDRB, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_fparith(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  emit_dnm(as, ai, (dest & 15), (left & 15), (right & 15));
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_dm(as, ai, (dest & 15), (left & 15));
+}
+
+static int asm_fpjoin_pow(ASMState *as, IRIns *ir)
+{
+  IRIns *irp = IR(ir->op1);
+  if (irp == ir-1 && irp->o == IR_MUL && !ra_used(irp)) {
+    IRIns *irpp = IR(irp->op1);
+    if (irpp == ir-2 && irpp->o == IR_FPMATH &&
+	irpp->op2 == IRFPM_LOG2 && !ra_used(irpp)) {
+      const CCallInfo *ci = &lj_ir_callinfo[IRCALL_pow];
+      IRRef args[2];
+      args[0] = irpp->op1;
+      args[1] = irp->op2;
+      asm_setupresult(as, ir, ci);
+      asm_gencall(as, ci, args);
+      return 1;
+    }
+  }
+  return 0;
+}
+#endif
+
+static int asm_swapops(ASMState *as, IRRef lref, IRRef rref)
+{
+  IRIns *ir;
+  if (irref_isk(rref))
+    return 0;  /* Don't swap constants to the left. */
+  if (irref_isk(lref))
+    return 1;  /* But swap constants to the right. */
+  ir = IR(rref);
+  if ((ir->o >= IR_BSHL && ir->o <= IR_BROR) ||
+      (ir->o == IR_ADD && ir->op1 == ir->op2))
+    return 0;  /* Don't swap fusable operands to the left. */
+  ir = IR(lref);
+  if ((ir->o >= IR_BSHL && ir->o <= IR_BROR) ||
+      (ir->o == IR_ADD && ir->op1 == ir->op2))
+    return 1;  /* But swap fusable operands to the right. */
+  return 0;  /* Otherwise don't swap. */
+}
+
+static void asm_intop(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  Reg left, dest = ra_dest(as, ir, RSET_GPR);
+  uint32_t m;
+  if (asm_swapops(as, lref, rref)) {
+    IRRef tmp = lref; lref = rref; rref = tmp;
+    if ((ai & ~ARMI_S) == ARMI_SUB || (ai & ~ARMI_S) == ARMI_SBC)
+      ai ^= (ARMI_SUB^ARMI_RSB);
+  }
+  left = ra_hintalloc(as, lref, dest, RSET_GPR);
+  m = asm_fuseopm(as, ai, rref, rset_exclude(RSET_GPR, left));
+  if (irt_isguard(ir->t)) {  /* For IR_ADDOV etc. */
+    asm_guardcc(as, CC_VS);
+    ai |= ARMI_S;
+  }
+  emit_dn(as, ai^m, dest, left);
+}
+
+static void asm_intop_s(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  if (as->flagmcp == as->mcp) {  /* Drop cmp r, #0. */
+    as->flagmcp = NULL;
+    as->mcp++;
+    ai |= ARMI_S;
+  }
+  asm_intop(as, ir, ai);
+}
+
+static void asm_bitop(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  if (as->flagmcp == as->mcp) {  /* Try to drop cmp r, #0. */
+    uint32_t cc = (as->mcp[1] >> 28);
+    as->flagmcp = NULL;
+    if (cc <= CC_NE) {
+      as->mcp++;
+      ai |= ARMI_S;
+    } else if (cc == CC_GE) {
+      *++as->mcp ^= ((CC_GE^CC_PL) << 28);
+      ai |= ARMI_S;
+    } else if (cc == CC_LT) {
+      *++as->mcp ^= ((CC_LT^CC_MI) << 28);
+      ai |= ARMI_S;
+    }  /* else: other conds don't work with bit ops. */
+  }
+  if (ir->op2 == 0) {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    uint32_t m = asm_fuseopm(as, ai, ir->op1, RSET_GPR);
+    emit_d(as, ai^m, dest);
+  } else {
+    /* NYI: Turn BAND !k12 into uxtb, uxth or bfc or shl+shr. */
+    asm_intop(as, ir, ai);
+  }
+}
+
+static void asm_intneg(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  emit_dn(as, ai|ARMI_K12|0, dest, left);
+}
+
+/* NYI: use add/shift for MUL(OV) with constants. FOLD only does 2^k. */
+static void asm_intmul(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, dest));
+  Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  Reg tmp = RID_NONE;
+  /* ARMv5 restriction: dest != left and dest_hi != left. */
+  if (dest == left && left != right) { left = right; right = dest; }
+  if (irt_isguard(ir->t)) {  /* IR_MULOV */
+    if (!(as->flags & JIT_F_ARMV6) && dest == left)
+      tmp = left = ra_scratch(as, rset_exclude(RSET_GPR, left));
+    asm_guardcc(as, CC_NE);
+    emit_nm(as, ARMI_TEQ|ARMF_SH(ARMSH_ASR, 31), RID_TMP, dest);
+    emit_dnm(as, ARMI_SMULL|ARMF_S(right), dest, RID_TMP, left);
+  } else {
+    if (!(as->flags & JIT_F_ARMV6) && dest == left) tmp = left = RID_TMP;
+    emit_nm(as, ARMI_MUL|ARMF_S(right), dest, left);
+  }
+  /* Only need this for the dest == left == right case. */
+  if (ra_hasreg(tmp)) emit_dm(as, ARMI_MOV, tmp, right);
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, ARMI_VMLA_D, ARMI_VMLA_D))
+      asm_fparith(as, ir, ARMI_VADD_D);
+    return;
+  }
+#endif
+  asm_intop_s(as, ir, ARMI_ADD);
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, ARMI_VNMLS_D, ARMI_VMLS_D))
+      asm_fparith(as, ir, ARMI_VSUB_D);
+    return;
+  }
+#endif
+  asm_intop_s(as, ir, ARMI_SUB);
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, ARMI_VMUL_D);
+    return;
+  }
+#endif
+  asm_intmul(as, ir);
+}
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, ARMI_VNEG_D);
+    return;
+  }
+#endif
+  asm_intneg(as, ir, ARMI_RSB);
+}
+
+static void asm_callid(ASMState *as, IRIns *ir, IRCallID id)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+#if !LJ_SOFTFP
+static void asm_callround(ASMState *as, IRIns *ir, int id)
+{
+  /* The modified regs must match with the *.dasc implementation. */
+  RegSet drop = RID2RSET(RID_R0)|RID2RSET(RID_R1)|RID2RSET(RID_R2)|
+		RID2RSET(RID_R3)|RID2RSET(RID_R12);
+  RegSet of;
+  Reg dest, src;
+  ra_evictset(as, drop);
+  dest = ra_dest(as, ir, RSET_FPR);
+  emit_dnm(as, ARMI_VMOV_D_RR, RID_RETLO, RID_RETHI, (dest & 15));
+  emit_call(as, id == IRFPM_FLOOR ? (void *)lj_vm_floor_sf :
+		id == IRFPM_CEIL ? (void *)lj_vm_ceil_sf :
+				   (void *)lj_vm_trunc_sf);
+  /* Workaround to protect argument GPRs from being used for remat. */
+  of = as->freeset;
+  as->freeset &= ~RSET_RANGE(RID_R0, RID_R1+1);
+  as->cost[RID_R0] = as->cost[RID_R1] = REGCOST(~0u, ASMREF_L);
+  src = ra_alloc1(as, ir->op1, RSET_FPR);  /* May alloc GPR to remat FPR. */
+  as->freeset |= (of & RSET_RANGE(RID_R0, RID_R1+1));
+  emit_dnm(as, ARMI_VMOV_RR_D, RID_R0, RID_R1, (src & 15));
+}
+#endif
+
+static void asm_bitswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if ((as->flags & JIT_F_ARMV6)) {
+    emit_dm(as, ARMI_REV, dest, left);
+  } else {
+    Reg tmp2 = dest;
+    if (tmp2 == left)
+      tmp2 = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, dest), left));
+    emit_dnm(as, ARMI_EOR|ARMF_SH(ARMSH_LSR, 8), dest, tmp2, RID_TMP);
+    emit_dm(as, ARMI_MOV|ARMF_SH(ARMSH_ROR, 8), tmp2, left);
+    emit_dn(as, ARMI_BIC|ARMI_K12|256*8|255, RID_TMP, RID_TMP);
+    emit_dnm(as, ARMI_EOR|ARMF_SH(ARMSH_ROR, 16), RID_TMP, left, left);
+  }
+}
+
+static void asm_bitshift(ASMState *as, IRIns *ir, ARMShift sh)
+{
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    /* NYI: Turn SHL+SHR or BAND+SHR into uxtb, uxth or ubfx. */
+    /* NYI: Turn SHL+ASR into sxtb, sxth or sbfx. */
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    int32_t shift = (IR(ir->op2)->i & 31);
+    emit_dm(as, ARMI_MOV|ARMF_SH(sh, shift), dest, left);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_dm(as, ARMI_MOV|ARMF_RSH(sh, right), dest, left);
+  }
+}
+
+static void asm_intmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  uint32_t kcmp = 0, kmov = 0;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  Reg right = 0;
+  if (irref_isk(ir->op2)) {
+    kcmp = emit_isk12(ARMI_CMP, IR(ir->op2)->i);
+    if (kcmp) kmov = emit_isk12(ARMI_MOV, IR(ir->op2)->i);
+  }
+  if (!kmov) {
+    kcmp = 0;
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  }
+  if (kmov || dest != right) {
+    emit_dm(as, ARMF_CC(ARMI_MOV, cc)^kmov, dest, right);
+    cc ^= 1;  /* Must use opposite conditions for paired moves. */
+  } else {
+    cc ^= (CC_LT^CC_GT);  /* Otherwise may swap CC_LT <-> CC_GT. */
+  }
+  if (dest != left) emit_dm(as, ARMF_CC(ARMI_MOV, cc), dest, left);
+  emit_nm(as, ARMI_CMP^kcmp, left, right);
+}
+
+#if LJ_SOFTFP
+static void asm_sfpmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_softfp_cmp];
+  RegSet drop = RSET_SCRATCH;
+  Reg r;
+  IRRef args[4];
+  args[0] = ir->op1; args[1] = (ir+1)->op1;
+  args[2] = ir->op2; args[3] = (ir+1)->op2;
+  /* __aeabi_cdcmple preserves r0-r3. */
+  if (ra_hasreg(ir->r)) rset_clear(drop, ir->r);
+  if (ra_hasreg((ir+1)->r)) rset_clear(drop, (ir+1)->r);
+  if (!rset_test(as->freeset, RID_R2) &&
+      regcost_ref(as->cost[RID_R2]) == args[2]) rset_clear(drop, RID_R2);
+  if (!rset_test(as->freeset, RID_R3) &&
+      regcost_ref(as->cost[RID_R3]) == args[3]) rset_clear(drop, RID_R3);
+  ra_evictset(as, drop);
+  ra_destpair(as, ir);
+  emit_dm(as, ARMF_CC(ARMI_MOV, cc), RID_RETHI, RID_R3);
+  emit_dm(as, ARMF_CC(ARMI_MOV, cc), RID_RETLO, RID_R2);
+  emit_call(as, (void *)ci->func);
+  for (r = RID_R0; r <= RID_R3; r++)
+    ra_leftov(as, r, args[r-RID_R0]);
+}
+#else
+static void asm_fpmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  Reg dest = (ra_dest(as, ir, RSET_FPR) & 15);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = ((left >> 8) & 15); left &= 15;
+  if (dest != left) emit_dm(as, ARMF_CC(ARMI_VMOV_D, cc^1), dest, left);
+  if (dest != right) emit_dm(as, ARMF_CC(ARMI_VMOV_D, cc), dest, right);
+  emit_d(as, ARMI_VMRS, 0);
+  emit_dm(as, ARMI_VCMP_D, left, right);
+}
+#endif
+
+static void asm_min_max(ASMState *as, IRIns *ir, int cc, int fcc)
+{
+#if LJ_SOFTFP
+  UNUSED(fcc);
+#else
+  if (irt_isnum(ir->t))
+    asm_fpmin_max(as, ir, fcc);
+  else
+#endif
+    asm_intmin_max(as, ir, cc);
+}
+
+/* -- Comparisons --------------------------------------------------------- */
+
+/* Map of comparisons to flags. ORDER IR. */
+static const uint8_t asm_compmap[IR_ABC+1] = {
+  /* op  FP swp  int cc   FP cc */
+  /* LT       */ CC_GE + (CC_HS << 4),
+  /* GE    x  */ CC_LT + (CC_HI << 4),
+  /* LE       */ CC_GT + (CC_HI << 4),
+  /* GT    x  */ CC_LE + (CC_HS << 4),
+  /* ULT   x  */ CC_HS + (CC_LS << 4),
+  /* UGE      */ CC_LO + (CC_LO << 4),
+  /* ULE   x  */ CC_HI + (CC_LO << 4),
+  /* UGT      */ CC_LS + (CC_LS << 4),
+  /* EQ       */ CC_NE + (CC_NE << 4),
+  /* NE       */ CC_EQ + (CC_EQ << 4),
+  /* ABC      */ CC_LS + (CC_LS << 4)  /* Same as UGT. */
+};
+
+#if LJ_SOFTFP
+/* FP comparisons. */
+static void asm_sfpcomp(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_softfp_cmp];
+  RegSet drop = RSET_SCRATCH;
+  Reg r;
+  IRRef args[4];
+  int swp = (((ir->o ^ (ir->o >> 2)) & ~(ir->o >> 3) & 1) << 1);
+  args[swp^0] = ir->op1; args[swp^1] = (ir+1)->op1;
+  args[swp^2] = ir->op2; args[swp^3] = (ir+1)->op2;
+  /* __aeabi_cdcmple preserves r0-r3. This helps to reduce spills. */
+  for (r = RID_R0; r <= RID_R3; r++)
+    if (!rset_test(as->freeset, r) &&
+	regcost_ref(as->cost[r]) == args[r-RID_R0]) rset_clear(drop, r);
+  ra_evictset(as, drop);
+  asm_guardcc(as, (asm_compmap[ir->o] >> 4));
+  emit_call(as, (void *)ci->func);
+  for (r = RID_R0; r <= RID_R3; r++)
+    ra_leftov(as, r, args[r-RID_R0]);
+}
+#else
+/* FP comparisons. */
+static void asm_fpcomp(ASMState *as, IRIns *ir)
+{
+  Reg left, right;
+  ARMIns ai;
+  int swp = ((ir->o ^ (ir->o >> 2)) & ~(ir->o >> 3) & 1);
+  if (!swp && irref_isk(ir->op2) && ir_knum(IR(ir->op2))->u64 == 0) {
+    left = (ra_alloc1(as, ir->op1, RSET_FPR) & 15);
+    right = 0;
+    ai = ARMI_VCMPZ_D;
+  } else {
+    left = ra_alloc2(as, ir, RSET_FPR);
+    if (swp) {
+      right = (left & 15); left = ((left >> 8) & 15);
+    } else {
+      right = ((left >> 8) & 15); left &= 15;
+    }
+    ai = ARMI_VCMP_D;
+  }
+  asm_guardcc(as, (asm_compmap[ir->o] >> 4));
+  emit_d(as, ARMI_VMRS, 0);
+  emit_dm(as, ai, left, right);
+}
+#endif
+
+/* Integer comparisons. */
+static void asm_intcomp(ASMState *as, IRIns *ir)
+{
+  ARMCC cc = (asm_compmap[ir->o] & 15);
+  IRRef lref = ir->op1, rref = ir->op2;
+  Reg left;
+  uint32_t m;
+  int cmpprev0 = 0;
+  lua_assert(irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t));
+  if (asm_swapops(as, lref, rref)) {
+    Reg tmp = lref; lref = rref; rref = tmp;
+    if (cc >= CC_GE) cc ^= 7;  /* LT <-> GT, LE <-> GE */
+    else if (cc > CC_NE) cc ^= 11;  /* LO <-> HI, LS <-> HS */
+  }
+  if (irref_isk(rref) && IR(rref)->i == 0) {
+    IRIns *irl = IR(lref);
+    cmpprev0 = (irl+1 == ir);
+    /* Combine comp(BAND(left, right), 0) into tst left, right. */
+    if (cmpprev0 && irl->o == IR_BAND && !ra_used(irl)) {
+      IRRef blref = irl->op1, brref = irl->op2;
+      uint32_t m2 = 0;
+      Reg bleft;
+      if (asm_swapops(as, blref, brref)) {
+	Reg tmp = blref; blref = brref; brref = tmp;
+      }
+      if (irref_isk(brref)) {
+	m2 = emit_isk12(ARMI_AND, IR(brref)->i);
+	if ((m2 & (ARMI_AND^ARMI_BIC)))
+	  goto notst;  /* Not beneficial if we miss a constant operand. */
+      }
+      if (cc == CC_GE) cc = CC_PL;
+      else if (cc == CC_LT) cc = CC_MI;
+      else if (cc > CC_NE) goto notst;  /* Other conds don't work with tst. */
+      bleft = ra_alloc1(as, blref, RSET_GPR);
+      if (!m2) m2 = asm_fuseopm(as, 0, brref, rset_exclude(RSET_GPR, bleft));
+      asm_guardcc(as, cc);
+      emit_n(as, ARMI_TST^m2, bleft);
+      return;
+    }
+  }
+notst:
+  left = ra_alloc1(as, lref, RSET_GPR);
+  m = asm_fuseopm(as, ARMI_CMP, rref, rset_exclude(RSET_GPR, left));
+  asm_guardcc(as, cc);
+  emit_n(as, ARMI_CMP^m, left);
+  /* Signed comparison with zero and referencing previous ins? */
+  if (cmpprev0 && (cc <= CC_NE || cc >= CC_GE))
+    as->flagmcp = as->mcp;  /* Allow elimination of the compare. */
+}
+
+#if LJ_HASFFI
+/* 64 bit integer comparisons. */
+static void asm_int64comp(ASMState *as, IRIns *ir)
+{
+  int signedcomp = (ir->o <= IR_GT);
+  ARMCC cclo, cchi;
+  Reg leftlo, lefthi;
+  uint32_t mlo, mhi;
+  RegSet allow = RSET_GPR, oldfree;
+
+  /* Always use unsigned comparison for loword. */
+  cclo = asm_compmap[ir->o + (signedcomp ? 4 : 0)] & 15;
+  leftlo = ra_alloc1(as, ir->op1, allow);
+  oldfree = as->freeset;
+  mlo = asm_fuseopm(as, ARMI_CMP, ir->op2, rset_clear(allow, leftlo));
+  allow &= ~(oldfree & ~as->freeset);  /* Update for allocs of asm_fuseopm. */
+
+  /* Use signed or unsigned comparison for hiword. */
+  cchi = asm_compmap[ir->o] & 15;
+  lefthi = ra_alloc1(as, (ir+1)->op1, allow);
+  mhi = asm_fuseopm(as, ARMI_CMP, (ir+1)->op2, rset_clear(allow, lefthi));
+
+  /* All register allocations must be performed _before_ this point. */
+  if (signedcomp) {
+    MCLabel l_around = emit_label(as);
+    asm_guardcc(as, cclo);
+    emit_n(as, ARMI_CMP^mlo, leftlo);
+    emit_branch(as, ARMF_CC(ARMI_B, CC_NE), l_around);
+    if (cchi == CC_GE || cchi == CC_LE) cchi ^= 6;  /* GE -> GT, LE -> LT */
+    asm_guardcc(as, cchi);
+  } else {
+    asm_guardcc(as, cclo);
+    emit_n(as, ARMF_CC(ARMI_CMP, CC_EQ)^mlo, leftlo);
+  }
+  emit_n(as, ARMI_CMP^mhi, lefthi);
+}
+#endif
+
+/* -- Support for 64 bit ops in 32 bit mode ------------------------------- */
+
+/* Hiword op of a split 64 bit op. Previous op must be the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+#if LJ_HASFFI || LJ_SOFTFP
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+  if ((ir-1)->o <= IR_NE) {  /* 64 bit integer or FP comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+#if LJ_SOFTFP
+    if (!irt_isint(ir->t)) {
+      asm_sfpcomp(as, ir-1);
+      return;
+    }
+#endif
+#if LJ_HASFFI
+    asm_int64comp(as, ir-1);
+#endif
+    return;
+#if LJ_SOFTFP
+  } else if ((ir-1)->o == IR_MIN || (ir-1)->o == IR_MAX) {
+    as->curins--;  /* Always skip the loword min/max. */
+    if (uselo || usehi)
+      asm_sfpmin_max(as, ir-1, (ir-1)->o == IR_MIN ? CC_HI : CC_LO);
+    return;
+#elif LJ_HASFFI
+  } else if ((ir-1)->o == IR_CONV) {
+    as->curins--;  /* Always skip the CONV. */
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+#endif
+  } else if ((ir-1)->o == IR_XSTORE) {
+    if ((ir-1)->r != RID_SINK)
+      asm_xstore(as, ir, 4);
+    return;
+  }
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+#if LJ_HASFFI
+  case IR_ADD:
+    as->curins--;
+    asm_intop(as, ir, ARMI_ADC);
+    asm_intop(as, ir-1, ARMI_ADD|ARMI_S);
+    break;
+  case IR_SUB:
+    as->curins--;
+    asm_intop(as, ir, ARMI_SBC);
+    asm_intop(as, ir-1, ARMI_SUB|ARMI_S);
+    break;
+  case IR_NEG:
+    as->curins--;
+    asm_intneg(as, ir, ARMI_RSC);
+    asm_intneg(as, ir-1, ARMI_RSB|ARMI_S);
+    break;
+#endif
+#if LJ_SOFTFP
+  case IR_SLOAD: case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+  case IR_STRTO:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RSET_GPR);  /* Mark lo op as used. */
+    break;
+#endif
+  case IR_CALLN:
+  case IR_CALLS:
+  case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+#if LJ_SOFTFP
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: case IR_TOSTR:
+#endif
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+  default: lua_assert(0); break;
+  }
+#else
+  UNUSED(as); UNUSED(ir); lua_assert(0);
+#endif
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  Reg pbase;
+  uint32_t k;
+  if (irp) {
+    if (!ra_hasspill(irp->s)) {
+      pbase = irp->r;
+      lua_assert(ra_hasreg(pbase));
+    } else if (allow) {
+      pbase = rset_pickbot(allow);
+    } else {
+      pbase = RID_RET;
+      emit_lso(as, ARMI_LDR, RID_RET, RID_SP, 0);  /* Restore temp. register. */
+    }
+  } else {
+    pbase = RID_BASE;
+  }
+  emit_branch(as, ARMF_CC(ARMI_BL, CC_LS), exitstub_addr(as->J, exitno));
+  k = emit_isk12(0, (int32_t)(8*topslot));
+  lua_assert(k);
+  emit_n(as, ARMI_CMP^k, RID_TMP);
+  emit_dnm(as, ARMI_SUB, RID_TMP, RID_TMP, pbase);
+  emit_lso(as, ARMI_LDR, RID_TMP, RID_TMP,
+	   (int32_t)offsetof(lua_State, maxstack));
+  if (irp) {  /* Must not spill arbitrary registers in head of side trace. */
+    int32_t i = i32ptr(&J2G(as->J)->jit_L);
+    if (ra_hasspill(irp->s))
+      emit_lso(as, ARMI_LDR, pbase, RID_SP, sps_scale(irp->s));
+    emit_lso(as, ARMI_LDR, RID_TMP, RID_TMP, (i & 4095));
+    if (ra_hasspill(irp->s) && !allow)
+      emit_lso(as, ARMI_STR, RID_RET, RID_SP, 0);  /* Save temp. register. */
+    emit_loadi(as, RID_TMP, (i & ~4095));
+  } else {
+    emit_getgl(as, RID_TMP, jit_L);
+  }
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1];
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+#if LJ_SOFTFP
+      RegSet odd = rset_exclude(RSET_GPRODD, RID_BASE);
+      Reg tmp;
+      lua_assert(irref_isk(ref));  /* LJ_SOFTFP: must be a number constant. */
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.lo,
+		      rset_exclude(RSET_GPREVEN, RID_BASE));
+      emit_lso(as, ARMI_STR, tmp, RID_BASE, ofs);
+      if (rset_test(as->freeset, tmp+1)) odd = RID2RSET(tmp+1);
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, odd);
+      emit_lso(as, ARMI_STR, tmp, RID_BASE, ofs+4);
+#else
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_vlso(as, ARMI_VSTR_D, src, RID_BASE, ofs);
+#endif
+    } else {
+      RegSet odd = rset_exclude(RSET_GPRODD, RID_BASE);
+      Reg type;
+      lua_assert(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t));
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPREVEN, RID_BASE));
+	emit_lso(as, ARMI_STR, src, RID_BASE, ofs);
+	if (rset_test(as->freeset, src+1)) odd = RID2RSET(src+1);
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s == 0) continue;  /* Do not overwrite link to previous frame. */
+	type = ra_allock(as, (int32_t)(*flinks--), odd);
+#if LJ_SOFTFP
+      } else if ((sn & SNAP_SOFTFPNUM)) {
+	type = ra_alloc1(as, ref+1, rset_exclude(RSET_GPRODD, RID_BASE));
+#endif
+      } else {
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), odd);
+      }
+      emit_lso(as, ARMI_STR, type, RID_BASE, ofs+4);
+    }
+    checkmclim(as);
+  }
+  lua_assert(map + nent == flinks);
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp1, tmp2;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcc(as, CC_NE);  /* Assumes asm_snap_prep() already done. */
+  emit_n(as, ARMI_CMP|ARMI_K12|0, RID_RET);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  tmp1 = ra_releasetmp(as, ASMREF_TMP1);
+  tmp2 = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp2, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_branch(as, ARMF_CC(ARMI_B, CC_LS), l_end);
+  emit_nm(as, ARMI_CMP, RID_TMP, tmp2);
+  emit_lso(as, ARMI_LDR, tmp2, tmp1,
+	   (int32_t)offsetof(global_State, gc.threshold));
+  emit_lso(as, ARMI_LDR, RID_TMP, tmp1,
+	   (int32_t)offsetof(global_State, gc.total));
+  ra_allockreg(as, i32ptr(J2G(as->J)), tmp1);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    /* asm_guardcc already inverted the bcc and patched the final bl. */
+    p[-2] |= ((uint32_t)(target-p) & 0x00ffffffu);
+  } else {
+    p[-1] = ARMI_B | ((uint32_t)((target-p)-1) & 0x00ffffffu);
+  }
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Reload L register from g->jit_L. */
+static void asm_head_lreg(ASMState *as)
+{
+  IRIns *ir = IR(ASMREF_L);
+  if (ra_used(ir)) {
+    Reg r = ra_dest(as, ir, RSET_GPR);
+    emit_getgl(as, r, jit_L);
+    ra_evictk(as);
+  }
+}
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir;
+  asm_head_lreg(as);
+  ir = IR(REF_BASE);
+  if (ra_hasreg(ir->r) && (rset_test(as->modset, ir->r) || irt_ismarked(ir->t)))
+    ra_spill(as, ir);
+  ra_destreg(as, ir, RID_BASE);
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir;
+  asm_head_lreg(as);
+  ir = IR(REF_BASE);
+  if (ra_hasreg(ir->r) && (rset_test(as->modset, ir->r) || irt_ismarked(ir->t)))
+    ra_spill(as, ir);
+  if (ra_hasspill(irp->s)) {
+    rset_clear(allow, ra_dest(as, ir, allow));
+  } else {
+    Reg r = irp->r;
+    lua_assert(ra_hasreg(r));
+    rset_clear(allow, r);
+    if (r != ir->r && !rset_test(as->freeset, r))
+      ra_restore(as, regcost_ref(as->cost[r]));
+    ra_destreg(as, ir, r);
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *p = as->mctop;
+  MCode *target;
+  int32_t spadj = as->T->spadjust;
+  if (spadj == 0) {
+    as->mctop = --p;
+  } else {
+    /* Patch stack adjustment. */
+    uint32_t k = emit_isk12(ARMI_ADD, spadj);
+    lua_assert(k);
+    p[-2] = (ARMI_ADD^k) | ARMF_D(RID_SP) | ARMF_N(RID_SP);
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  p[-1] = ARMI_B|(((target-p)-1)&0x00ffffffu);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop - 1;  /* Leave room for exit branch. */
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    as->mcp = p-1;  /* Leave room for stack pointer adjustment. */
+    as->invmcp = NULL;
+  }
+  *p = 0;  /* Prevent load/store merging. */
+}
+
+/* -- Instruction dispatch ------------------------------------------------ */
+
+/* Assemble a single instruction. */
+static void asm_ir(ASMState *as, IRIns *ir)
+{
+  switch ((IROp)ir->o) {
+  /* Miscellaneous ops. */
+  case IR_LOOP: asm_loop(as); break;
+  case IR_NOP: case IR_XBAR: lua_assert(!ra_used(ir)); break;
+  case IR_USE:
+    ra_alloc1(as, ir->op1, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR); break;
+  case IR_PHI: asm_phi(as, ir); break;
+  case IR_HIOP: asm_hiop(as, ir); break;
+  case IR_GCSTEP: asm_gcstep(as, ir); break;
+
+  /* Guarded assertions. */
+  case IR_EQ: case IR_NE:
+    if ((ir-1)->o == IR_HREF && ir->op1 == as->curins-1) {
+      as->curins--;
+      asm_href(as, ir-1, (IROp)ir->o);
+      break;
+    }
+    /* fallthrough */
+  case IR_LT: case IR_GE: case IR_LE: case IR_GT:
+  case IR_ULT: case IR_UGE: case IR_ULE: case IR_UGT:
+  case IR_ABC:
+#if !LJ_SOFTFP
+    if (irt_isnum(ir->t)) { asm_fpcomp(as, ir); break; }
+#endif
+    asm_intcomp(as, ir);
+    break;
+
+  case IR_RETF: asm_retf(as, ir); break;
+
+  /* Bit ops. */
+  case IR_BNOT: asm_bitop(as, ir, ARMI_MVN); break;
+  case IR_BSWAP: asm_bitswap(as, ir); break;
+
+  case IR_BAND: asm_bitop(as, ir, ARMI_AND); break;
+  case IR_BOR:  asm_bitop(as, ir, ARMI_ORR); break;
+  case IR_BXOR: asm_bitop(as, ir, ARMI_EOR); break;
+
+  case IR_BSHL: asm_bitshift(as, ir, ARMSH_LSL); break;
+  case IR_BSHR: asm_bitshift(as, ir, ARMSH_LSR); break;
+  case IR_BSAR: asm_bitshift(as, ir, ARMSH_ASR); break;
+  case IR_BROR: asm_bitshift(as, ir, ARMSH_ROR); break;
+  case IR_BROL: lua_assert(0); break;
+
+  /* Arithmetic ops. */
+  case IR_ADD: case IR_ADDOV: asm_add(as, ir); break;
+  case IR_SUB: case IR_SUBOV: asm_sub(as, ir); break;
+  case IR_MUL: case IR_MULOV: asm_mul(as, ir); break;
+  case IR_MOD: asm_callid(as, ir, IRCALL_lj_vm_modi); break;
+  case IR_NEG: asm_neg(as, ir); break;
+
+#if LJ_SOFTFP
+  case IR_DIV: case IR_POW: case IR_ABS:
+  case IR_ATAN2: case IR_LDEXP: case IR_FPMATH: case IR_TOBIT:
+    lua_assert(0);  /* Unused for LJ_SOFTFP. */
+    break;
+#else
+  case IR_DIV: asm_fparith(as, ir, ARMI_VDIV_D); break;
+  case IR_POW: asm_callid(as, ir, IRCALL_lj_vm_powi); break;
+  case IR_ABS: asm_fpunary(as, ir, ARMI_VABS_D); break;
+  case IR_ATAN2: asm_callid(as, ir, IRCALL_atan2); break;
+  case IR_LDEXP: asm_callid(as, ir, IRCALL_ldexp); break;
+  case IR_FPMATH:
+    if (ir->op2 == IRFPM_EXP2 && asm_fpjoin_pow(as, ir))
+      break;
+    if (ir->op2 <= IRFPM_TRUNC)
+      asm_callround(as, ir, ir->op2);
+    else if (ir->op2 == IRFPM_SQRT)
+      asm_fpunary(as, ir, ARMI_VSQRT_D);
+    else
+      asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2);
+    break;
+  case IR_TOBIT: asm_tobit(as, ir); break;
+#endif
+
+  case IR_MIN: asm_min_max(as, ir, CC_GT, CC_HI); break;
+  case IR_MAX: asm_min_max(as, ir, CC_LT, CC_LO); break;
+
+  /* Memory references. */
+  case IR_AREF: asm_aref(as, ir); break;
+  case IR_HREF: asm_href(as, ir, 0); break;
+  case IR_HREFK: asm_hrefk(as, ir); break;
+  case IR_NEWREF: asm_newref(as, ir); break;
+  case IR_UREFO: case IR_UREFC: asm_uref(as, ir); break;
+  case IR_FREF: asm_fref(as, ir); break;
+  case IR_STRREF: asm_strref(as, ir); break;
+
+  /* Loads and stores. */
+  case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+    asm_ahuvload(as, ir);
+    break;
+  case IR_FLOAD: asm_fload(as, ir); break;
+  case IR_XLOAD: asm_xload(as, ir); break;
+  case IR_SLOAD: asm_sload(as, ir); break;
+
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: asm_ahustore(as, ir); break;
+  case IR_FSTORE: asm_fstore(as, ir); break;
+  case IR_XSTORE: asm_xstore(as, ir, 0); break;
+
+  /* Allocations. */
+  case IR_SNEW: case IR_XSNEW: asm_snew(as, ir); break;
+  case IR_TNEW: asm_tnew(as, ir); break;
+  case IR_TDUP: asm_tdup(as, ir); break;
+  case IR_CNEW: case IR_CNEWI: asm_cnew(as, ir); break;
+
+  /* Write barriers. */
+  case IR_TBAR: asm_tbar(as, ir); break;
+  case IR_OBAR: asm_obar(as, ir); break;
+
+  /* Type conversions. */
+  case IR_CONV: asm_conv(as, ir); break;
+  case IR_TOSTR: asm_tostr(as, ir); break;
+  case IR_STRTO: asm_strto(as, ir); break;
+
+  /* Calls. */
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: asm_call(as, ir); break;
+  case IR_CALLXS: asm_callx(as, ir); break;
+  case IR_CARG: break;
+
+  default:
+    setintV(&as->J->errinfo, ir->o);
+    lj_trace_err_info(as->J, LJ_TRERR_NYIIR);
+    break;
+  }
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = (int)CCI_NARGS(ci);
+  int nslots = 0, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR, fprodd = 0;
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++) {
+    if (!LJ_SOFTFP && args[i] && irt_isfp(IR(args[i])->t)) {
+      if (!LJ_ABI_SOFTFP && !(ci->flags & CCI_VARARG)) {
+	if (irt_isnum(IR(args[i])->t)) {
+	  if (nfpr > 0) nfpr--;
+	  else fprodd = 0, nslots = (nslots + 3) & ~1;
+	} else {
+	  if (fprodd) fprodd--;
+	  else if (nfpr > 0) fprodd = 1, nfpr--;
+	  else nslots++;
+	}
+      } else if (irt_isnum(IR(args[i])->t)) {
+	ngpr &= ~1;
+	if (ngpr > 0) ngpr -= 2; else nslots += 2;
+      } else {
+	if (ngpr > 0) ngpr--; else nslots++;
+      }
+    } else {
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+  }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  /* May need extra exit for asm_stack_check on side traces. */
+  asm_exitstub_setup(as, as->T->nsnap + (as->parent ? 1 : 0));
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *cstart = NULL, *cend = p;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MCode *px = exitstub_addr(J, exitno) - 2;
+  for (; p < pe; p++) {
+    /* Look for bl_cc exitstub, replace with b_cc target. */
+    uint32_t ins = *p;
+    if ((ins & 0x0f000000u) == 0x0b000000u && ins < 0xf0000000u &&
+	((ins ^ (px-p)) & 0x00ffffffu) == 0) {
+      *p = (ins & 0xfe000000u) | (((target-p)-2) & 0x00ffffffu);
+      cend = p+1;
+      if (!cstart) cstart = p;
+    }
+  }
+  lua_assert(cstart != NULL);
+  lj_mcode_sync(cstart, cend);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/lib/luajit/src/lj_asm_mips.h b/lib/luajit/src/lj_asm_mips.h
new file mode 100644
index 00000000..e5c67b53
--- /dev/null
+++ b/lib/luajit/src/lj_asm_mips.h
@@ -0,0 +1,1977 @@
+/*
+** MIPS IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate a register or RID_ZERO. */
+static Reg ra_alloc1z(ASMState *as, IRRef ref, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!(allow & RSET_FPR) && irref_isk(ref) && IR(ref)->i == 0)
+      return RID_ZERO;
+    r = ra_allocref(as, ref, allow);
+  } else {
+    ra_noweak(as, r);
+  }
+  return r;
+}
+
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_alloc1z(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_alloc1z(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_alloc1z(as, ir->op2, allow);
+    left = ra_alloc1z(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_alloc1z(as, ir->op1, allow);
+    right = ra_alloc1z(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Need some spare long-range jump slots, for out-of-range branches. */
+#define MIPS_SPAREJUMP		4
+
+/* Setup spare long-range jump slots per mcarea. */
+static void asm_sparejump_setup(ASMState *as)
+{
+  MCode *mxp = as->mcbot;
+  /* Assumes sizeof(MCLink) == 8. */
+  if (((uintptr_t)mxp & (LJ_PAGESIZE-1)) == 8) {
+    lua_assert(MIPSI_NOP == 0);
+    memset(mxp+2, 0, MIPS_SPAREJUMP*8);
+    mxp += MIPS_SPAREJUMP*2;
+    lua_assert(mxp < as->mctop);
+    lj_mcode_sync(as->mcbot, mxp);
+    lj_mcode_commitbot(as->J, mxp);
+    as->mcbot = mxp;
+    as->mclim = as->mcbot + MCLIM_REDZONE;
+  }
+}
+
+/* Setup exit stub after the end of each trace. */
+static void asm_exitstub_setup(ASMState *as)
+{
+  MCode *mxp = as->mctop;
+  /* sw TMP, 0(sp); j ->vm_exit_handler; li TMP, traceno */
+  *--mxp = MIPSI_LI|MIPSF_T(RID_TMP)|as->T->traceno;
+  *--mxp = MIPSI_J|((((uintptr_t)(void *)lj_vm_exit_handler)>>2)&0x03ffffffu);
+  lua_assert(((uintptr_t)mxp ^ (uintptr_t)(void *)lj_vm_exit_handler)>>28 == 0);
+  *--mxp = MIPSI_SW|MIPSF_T(RID_TMP)|MIPSF_S(RID_SP)|0;
+  as->mctop = mxp;
+}
+
+/* Keep this in-sync with exitstub_trace_addr(). */
+#define asm_exitstub_addr(as)	((as)->mctop)
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guard(ASMState *as, MIPSIns mi, Reg rs, Reg rt)
+{
+  MCode *target = asm_exitstub_addr(as);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->invmcp = NULL;
+    as->loopinv = 1;
+    as->mcp = p+1;
+    mi = mi ^ ((mi>>28) == 1 ? 0x04000000u : 0x00010000u);  /* Invert cond. */
+    target = p;  /* Patch target later in asm_loop_fixup. */
+  }
+  emit_ti(as, MIPSI_LI, RID_TMP, as->snapno);
+  emit_branch(as, mi, rs, rt, target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (checki16(ofs)) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (checki16(ofs)) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	int32_t ofs = i32ptr(&gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.tv);
+	int32_t jgl = (intptr_t)J2G(as->J);
+	if ((uint32_t)(ofs-jgl) < 65536) {
+	  *ofsp = ofs-jgl-32768;
+	  return RID_JGL;
+	} else {
+	  *ofsp = (int16_t)ofs;
+	  return ra_allock(as, ofs-(int16_t)ofs, allow);
+	}
+      }
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, MIPSIns mi, Reg rt, IRRef ref,
+			 RegSet allow, int32_t ofs)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    if (ir->o == IR_ADD) {
+      int32_t ofs2;
+      if (irref_isk(ir->op2) && (ofs2 = ofs + IR(ir->op2)->i, checki16(ofs2))) {
+	ref = ir->op1;
+	ofs = ofs2;
+      }
+    } else if (ir->o == IR_STRREF) {
+      int32_t ofs2 = 65536;
+      lua_assert(ofs == 0);
+      ofs = (int32_t)sizeof(GCstr);
+      if (irref_isk(ir->op2)) {
+	ofs2 = ofs + IR(ir->op2)->i;
+	ref = ir->op1;
+      } else if (irref_isk(ir->op1)) {
+	ofs2 = ofs + IR(ir->op1)->i;
+	ref = ir->op2;
+      }
+      if (!checki16(ofs2)) {
+	/* NYI: Fuse ADD with constant. */
+	Reg right, left = ra_alloc2(as, ir, allow);
+	right = (left >> 8); left &= 255;
+	emit_hsi(as, mi, rt, RID_TMP, ofs);
+	emit_dst(as, MIPSI_ADDU, RID_TMP, left, right);
+	return;
+      }
+      ofs = ofs2;
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+  emit_hsi(as, mi, rt, base, ofs);
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_NARGS(ci);
+  int32_t ofs = 16;
+  Reg gpr, fpr = REGARG_FIRSTFPR;
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func);
+  for (gpr = REGARG_FIRSTGPR; gpr <= REGARG_LASTGPR; gpr++)
+    as->cost[gpr] = REGCOST(~0u, ASMREF_L);
+  gpr = REGARG_FIRSTGPR;
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    if (ref) {
+      IRIns *ir = IR(ref);
+      if (irt_isfp(ir->t) && fpr <= REGARG_LASTFPR &&
+	  !(ci->flags & CCI_VARARG)) {
+	lua_assert(rset_test(as->freeset, fpr));  /* Already evicted. */
+	ra_leftov(as, fpr, ref);
+	fpr += 2;
+	gpr += irt_isnum(ir->t) ? 2 : 1;
+      } else {
+	fpr = REGARG_LASTFPR+1;
+	if (irt_isnum(ir->t)) gpr = (gpr+1) & ~1;
+	if (gpr <= REGARG_LASTGPR) {
+	  lua_assert(rset_test(as->freeset, gpr));  /* Already evicted. */
+	  if (irt_isfp(ir->t)) {
+	    RegSet of = as->freeset;
+	    Reg r;
+	    /* Workaround to protect argument GPRs from being used for remat. */
+	    as->freeset &= ~RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1);
+	    r = ra_alloc1(as, ref, RSET_FPR);
+	    as->freeset |= (of & RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1));
+	    if (irt_isnum(ir->t)) {
+	      emit_tg(as, MIPSI_MFC1, gpr+(LJ_BE?0:1), r+1);
+	      emit_tg(as, MIPSI_MFC1, gpr+(LJ_BE?1:0), r);
+	      lua_assert(rset_test(as->freeset, gpr+1));  /* Already evicted. */
+	      gpr += 2;
+	    } else if (irt_isfloat(ir->t)) {
+	      emit_tg(as, MIPSI_MFC1, gpr, r);
+	      gpr++;
+	    }
+	  } else {
+	    ra_leftov(as, gpr, ref);
+	    gpr++;
+	  }
+	} else {
+	  Reg r = ra_alloc1z(as, ref, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+	  if (irt_isnum(ir->t)) ofs = (ofs + 4) & ~4;
+	  emit_spstore(as, ir, r, ofs);
+	  ofs += irt_isnum(ir->t) ? 8 : 4;
+	}
+      }
+    } else {
+      fpr = REGARG_LASTFPR+1;
+      if (gpr <= REGARG_LASTGPR)
+	gpr++;
+      else
+	ofs += 4;
+    }
+    checkmclim(as);
+  }
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP);
+  if ((ci->flags & CCI_NOFPRCLOBBER))
+    drop &= ~RSET_FPR;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lua_assert(!irt_ispri(ir->t));
+    if (irt_isfp(ir->t)) {
+      if ((ci->flags & CCI_CASTU64)) {
+	int32_t ofs = sps_scale(ir->s);
+	Reg dest = ir->r;
+	if (ra_hasreg(dest)) {
+	  ra_free(as, dest);
+	  ra_modified(as, dest);
+	  emit_tg(as, MIPSI_MTC1, RID_RETHI, dest+1);
+	  emit_tg(as, MIPSI_MTC1, RID_RETLO, dest);
+	}
+	if (ofs) {
+	  emit_tsi(as, MIPSI_SW, RID_RETLO, RID_SP, ofs+(LJ_BE?4:0));
+	  emit_tsi(as, MIPSI_SW, RID_RETHI, RID_SP, ofs+(LJ_BE?0:4));
+	}
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+}
+
+static void asm_call(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX];
+  const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+  asm_collectargs(as, ir, ci, args);
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(void *)(irf->i);
+  } else {  /* Need specific register for indirect calls. */
+    Reg r = ra_alloc1(as, func, RID2RSET(RID_CFUNCADDR));
+    MCode *p = as->mcp;
+    if (r == RID_CFUNCADDR)
+      *--p = MIPSI_NOP;
+    else
+      *--p = MIPSI_MOVE | MIPSF_D(RID_CFUNCADDR) | MIPSF_S(r);
+    *--p = MIPSI_JALR | MIPSF_S(r);
+    as->mcp = p;
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+static void asm_callid(ASMState *as, IRIns *ir, IRCallID id)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+static void asm_callround(ASMState *as, IRIns *ir, IRCallID id)
+{
+  /* The modified regs must match with the *.dasc implementation. */
+  RegSet drop = RID2RSET(RID_R1)|RID2RSET(RID_R12)|RID2RSET(RID_FPRET)|
+		RID2RSET(RID_F2)|RID2RSET(RID_F4)|RID2RSET(REGARG_FIRSTFPR);
+  if (ra_hasreg(ir->r)) rset_clear(drop, ir->r);
+  ra_evictset(as, drop);
+  ra_destreg(as, ir, RID_FPRET);
+  emit_call(as, (void *)lj_ir_callinfo[id].func);
+  ra_leftov(as, REGARG_FIRSTFPR, ir->op1);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guard(as, MIPSI_BNE, RID_TMP,
+	    ra_allock(as, i32ptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_tsi(as, MIPSI_LW, RID_TMP, base, -8);
+}
+
+/* -- Type conversions ---------------------------------------------------- */
+
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_guard(as, MIPSI_BC1F, 0, 0);
+  emit_fgh(as, MIPSI_C_EQ_D, 0, tmp, left);
+  emit_fg(as, MIPSI_CVT_D_W, tmp, tmp);
+  emit_tg(as, MIPSI_MFC1, dest, tmp);
+  emit_fg(as, MIPSI_CVT_W_D, tmp, left);
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  emit_tg(as, MIPSI_MFC1, dest, tmp);
+  emit_fgh(as, MIPSI_ADD_D, tmp, left, right);
+}
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+  IRRef lref = ir->op1;
+  lua_assert(irt_type(ir->t) != st);
+  lua_assert(!(irt_isint64(ir->t) ||
+	       (st == IRT_I64 || st == IRT_U64))); /* Handled by SPLIT. */
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      emit_fg(as, st == IRT_NUM ? MIPSI_CVT_S_D : MIPSI_CVT_D_S,
+	      dest, ra_alloc1(as, lref, RSET_FPR));
+    } else if (st == IRT_U32) {  /* U32 to FP conversion. */
+      /* y = (x ^ 0x8000000) + 2147483648.0 */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      emit_fgh(as, irt_isfloat(ir->t) ? MIPSI_ADD_S : MIPSI_ADD_D,
+	       dest, dest, tmp);
+      emit_fg(as, irt_isfloat(ir->t) ? MIPSI_CVT_S_W : MIPSI_CVT_D_W,
+	      dest, dest);
+      if (irt_isfloat(ir->t))
+	emit_lsptr(as, MIPSI_LWC1, (tmp & 31),
+		   (void *)lj_ir_k64_find(as->J, U64x(4f000000,4f000000)),
+		   RSET_GPR);
+      else
+	emit_lsptr(as, MIPSI_LDC1, (tmp & 31),
+		   (void *)lj_ir_k64_find(as->J, U64x(41e00000,00000000)),
+		   RSET_GPR);
+      emit_tg(as, MIPSI_MTC1, RID_TMP, dest);
+      emit_dst(as, MIPSI_XOR, RID_TMP, RID_TMP, left);
+      emit_ti(as, MIPSI_LUI, RID_TMP, 0x8000);
+    } else {  /* Integer to FP conversion. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      emit_fg(as, irt_isfloat(ir->t) ? MIPSI_CVT_S_W : MIPSI_CVT_D_W,
+	      dest, dest);
+      emit_tg(as, MIPSI_MTC1, left, dest);
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lua_assert(irt_isint(ir->t) && st == IRT_NUM);
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+      if (irt_isu32(ir->t)) {
+	/* y = (int)floor(x - 2147483648.0) ^ 0x80000000 */
+	emit_dst(as, MIPSI_XOR, dest, dest, RID_TMP);
+	emit_ti(as, MIPSI_LUI, RID_TMP, 0x8000);
+	emit_tg(as, MIPSI_MFC1, dest, tmp);
+	emit_fg(as, st == IRT_FLOAT ? MIPSI_FLOOR_W_S : MIPSI_FLOOR_W_D,
+		tmp, tmp);
+	emit_fgh(as, st == IRT_FLOAT ? MIPSI_SUB_S : MIPSI_SUB_D,
+		 tmp, left, tmp);
+	if (st == IRT_FLOAT)
+	  emit_lsptr(as, MIPSI_LWC1, (tmp & 31),
+		     (void *)lj_ir_k64_find(as->J, U64x(4f000000,4f000000)),
+		     RSET_GPR);
+	else
+	  emit_lsptr(as, MIPSI_LDC1, (tmp & 31),
+		     (void *)lj_ir_k64_find(as->J, U64x(41e00000,00000000)),
+		     RSET_GPR);
+      } else {
+	emit_tg(as, MIPSI_MFC1, dest, tmp);
+	emit_fg(as, st == IRT_FLOAT ? MIPSI_TRUNC_W_S : MIPSI_TRUNC_W_D,
+		tmp, left);
+      }
+    }
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+      Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+      lua_assert(irt_isint(ir->t) || irt_isu32(ir->t));
+      if ((ir->op2 & IRCONV_SEXT)) {
+	if ((as->flags & JIT_F_MIPS32R2)) {
+	  emit_dst(as, st == IRT_I8 ? MIPSI_SEB : MIPSI_SEH, dest, 0, left);
+	} else {
+	  uint32_t shift = st == IRT_I8 ? 24 : 16;
+	  emit_dta(as, MIPSI_SRA, dest, dest, shift);
+	  emit_dta(as, MIPSI_SLL, dest, left, shift);
+	}
+      } else {
+	emit_tsi(as, MIPSI_ANDI, dest, left,
+		 (int32_t)(st == IRT_U8 ? 0xff : 0xffff));
+      }
+    } else {  /* 32/64 bit integer conversions. */
+      /* Only need to handle 32/32 bit no-op (cast) on 32 bit archs. */
+      ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    }
+  }
+}
+
+#if LJ_HASFFI
+static void asm_conv64(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)((ir-1)->op2 & IRCONV_SRCMASK);
+  IRType dt = (((ir-1)->op2 & IRCONV_DSTMASK) >> IRCONV_DSH);
+  IRCallID id;
+  const CCallInfo *ci;
+  IRRef args[2];
+  args[LJ_BE?0:1] = ir->op1;
+  args[LJ_BE?1:0] = (ir-1)->op1;
+  if (st == IRT_NUM || st == IRT_FLOAT) {
+    id = IRCALL_fp64_d2l + ((st == IRT_FLOAT) ? 2 : 0) + (dt - IRT_I64);
+    ir--;
+  } else {
+    id = IRCALL_fp64_l2d + ((dt == IRT_FLOAT) ? 2 : 0) + (st - IRT_I64);
+  }
+  ci = &lj_ir_callinfo[id];
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+#endif
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  RegSet drop = RSET_SCRATCH;
+  if (ra_hasreg(ir->r)) rset_set(drop, ir->r);  /* Spill dest reg (if any). */
+  ra_evictset(as, drop);
+  asm_guard(as, MIPSI_BEQ, RID_RET, RID_ZERO);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  /* Store the result to the spill slot or temp slots. */
+  emit_tsi(as, MIPSI_ADDIU, ra_releasetmp(as, ASMREF_TMP1),
+	   RID_SP, sps_scale(ir->s));
+}
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (irt_isnum(ir->t)) {
+    if (irref_isk(ref))  /* Use the number constant itself as a TValue. */
+      ra_allockreg(as, i32ptr(ir_knum(ir)), dest);
+    else  /* Otherwise force a spill and use the spill slot. */
+      emit_tsi(as, MIPSI_ADDIU, dest, RID_SP, ra_spill(as, ir));
+  } else {
+    /* Otherwise use g->tmptv to hold the TValue. */
+    RegSet allow = rset_exclude(RSET_GPR, dest);
+    Reg type;
+    emit_tsi(as, MIPSI_ADDIU, dest, RID_JGL, offsetof(global_State, tmptv)-32768);
+    if (!irt_ispri(ir->t)) {
+      Reg src = ra_alloc1(as, ref, allow);
+      emit_setgl(as, src, tmptv.gcr);
+    }
+    type = ra_allock(as, irt_toitype(ir->t), allow);
+    emit_setgl(as, type, tmptv.it);
+  }
+}
+
+static void asm_tostr(ASMState *as, IRIns *ir)
+{
+  IRRef args[2];
+  args[0] = ASMREF_L;
+  as->gcsteps++;
+  if (irt_isnum(IR(ir->op1)->t) || (ir+1)->o == IR_HIOP) {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromnum];
+    args[1] = ASMREF_TMP1;  /* const lua_Number * */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+    asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op1);
+  } else {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromint];
+    args[1] = ir->op1;  /* int32_t k */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+  }
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    ofs += 8*IR(ir->op2)->i;
+    if (checki16(ofs)) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_tsi(as, MIPSI_ADDIU, dest, base, ofs);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+  emit_dst(as, MIPSI_ADDU, dest, RID_TMP, base);
+  emit_dta(as, MIPSI_SLL, RID_TMP, idx, 3);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = RID_NONE, type = RID_NONE, tmpnum = RID_NONE, tmp1 = RID_TMP, tmp2;
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  IRType1 kt = irkey->t;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+
+  rset_clear(allow, tab);
+  if (irt_isnum(kt)) {
+    key = ra_alloc1(as, refkey, RSET_FPR);
+    tmpnum = ra_scratch(as, rset_exclude(RSET_FPR, key));
+  } else if (!irt_ispri(kt)) {
+    key = ra_alloc1(as, refkey, allow);
+    rset_clear(allow, key);
+    type = ra_allock(as, irt_toitype(irkey->t), allow);
+    rset_clear(allow, type);
+  }
+  tmp2 = ra_scratch(as, allow);
+  rset_clear(allow, tmp2);
+
+  /* Key not found in chain: load niltv. */
+  l_end = emit_label(as);
+  if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+  else
+    *--as->mcp = MIPSI_NOP;
+  /* Follow hash chain until the end. */
+  emit_move(as, dest, tmp1);
+  l_loop = --as->mcp;
+  emit_tsi(as, MIPSI_LW, tmp1, dest, (int32_t)offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (irt_isnum(kt)) {
+    emit_branch(as, MIPSI_BC1T, 0, 0, l_end);
+    emit_fgh(as, MIPSI_C_EQ_D, 0, tmpnum, key);
+	emit_tg(as, MIPSI_MFC1, tmp1, key+1);
+    emit_branch(as, MIPSI_BEQ, tmp1, RID_ZERO, l_next);
+    emit_tsi(as, MIPSI_SLTIU, tmp1, tmp1, (int32_t)LJ_TISNUM);
+    emit_hsi(as, MIPSI_LDC1, tmpnum, dest, (int32_t)offsetof(Node, key.n));
+  } else {
+    if (irt_ispri(kt)) {
+      emit_branch(as, MIPSI_BEQ, tmp1, type, l_end);
+    } else {
+      emit_branch(as, MIPSI_BEQ, tmp2, key, l_end);
+      emit_tsi(as, MIPSI_LW, tmp2, dest, (int32_t)offsetof(Node, key.gcr));
+      emit_branch(as, MIPSI_BNE, tmp1, type, l_next);
+    }
+  }
+  emit_tsi(as, MIPSI_LW, tmp1, dest, (int32_t)offsetof(Node, key.it));
+  *l_loop = MIPSI_BNE | MIPSF_S(tmp1) | ((as->mcp-l_loop-1) & 0xffffu);
+
+  /* Load main position relative to tab->node into dest. */
+  khash = irref_isk(refkey) ? ir_khash(irkey) : 1;
+  if (khash == 0) {
+    emit_tsi(as, MIPSI_LW, dest, tab, (int32_t)offsetof(GCtab, node));
+  } else {
+    Reg tmphash = tmp1;
+    if (irref_isk(refkey))
+      tmphash = ra_allock(as, khash, allow);
+    emit_dst(as, MIPSI_ADDU, dest, dest, tmp1);
+    lua_assert(sizeof(Node) == 24);
+    emit_dst(as, MIPSI_SUBU, tmp1, tmp2, tmp1);
+    emit_dta(as, MIPSI_SLL, tmp1, tmp1, 3);
+    emit_dta(as, MIPSI_SLL, tmp2, tmp1, 5);
+    emit_dst(as, MIPSI_AND, tmp1, tmp2, tmphash);
+    emit_tsi(as, MIPSI_LW, dest, tab, (int32_t)offsetof(GCtab, node));
+    emit_tsi(as, MIPSI_LW, tmp2, tab, (int32_t)offsetof(GCtab, hmask));
+    if (irref_isk(refkey)) {
+      /* Nothing to do. */
+    } else if (irt_isstr(kt)) {
+      emit_tsi(as, MIPSI_LW, tmp1, key, (int32_t)offsetof(GCstr, hash));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      emit_dst(as, MIPSI_SUBU, tmp1, tmp1, tmp2);
+      emit_rotr(as, tmp2, tmp2, dest, (-HASH_ROT3)&31);
+      emit_dst(as, MIPSI_XOR, tmp1, tmp1, tmp2);
+      emit_rotr(as, tmp1, tmp1, dest, (-HASH_ROT2-HASH_ROT1)&31);
+      emit_dst(as, MIPSI_SUBU, tmp2, tmp2, dest);
+      if (irt_isnum(kt)) {
+	emit_dst(as, MIPSI_XOR, tmp2, tmp2, tmp1);
+	if ((as->flags & JIT_F_MIPS32R2)) {
+	  emit_dta(as, MIPSI_ROTR, dest, tmp1, (-HASH_ROT1)&31);
+	} else {
+	  emit_dst(as, MIPSI_OR, dest, dest, tmp1);
+	  emit_dta(as, MIPSI_SLL, tmp1, tmp1, HASH_ROT1);
+	  emit_dta(as, MIPSI_SRL, dest, tmp1, (-HASH_ROT1)&31);
+	}
+	emit_dst(as, MIPSI_ADDU, tmp1, tmp1, tmp1);
+	emit_tg(as, MIPSI_MFC1, tmp2, key);
+	emit_tg(as, MIPSI_MFC1, tmp1, key+1);
+      } else {
+	emit_dst(as, MIPSI_XOR, tmp2, key, tmp1);
+	emit_rotr(as, dest, tmp1, tmp2, (-HASH_ROT1)&31);
+	emit_dst(as, MIPSI_ADDU, tmp1, key, ra_allock(as, HASH_BIAS, allow));
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  Reg dest = (ra_used(ir)||ofs > 32736) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg key = RID_NONE, type = RID_TMP, idx = node;
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  int32_t lo, hi;
+  lua_assert(ofs % sizeof(Node) == 0);
+  if (ofs > 32736) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_tsi(as, MIPSI_ADDIU, dest, node, ofs);
+  }
+  if (!irt_ispri(irkey->t)) {
+    key = ra_scratch(as, allow);
+    rset_clear(allow, key);
+  }
+  if (irt_isnum(irkey->t)) {
+    lo = (int32_t)ir_knum(irkey)->u32.lo;
+    hi = (int32_t)ir_knum(irkey)->u32.hi;
+  } else {
+    lo = irkey->i;
+    hi = irt_toitype(irkey->t);
+    if (!ra_hasreg(key))
+      goto nolo;
+  }
+  asm_guard(as, MIPSI_BNE, key, lo ? ra_allock(as, lo, allow) : RID_ZERO);
+nolo:
+  asm_guard(as, MIPSI_BNE, type, hi ? ra_allock(as, hi, allow) : RID_ZERO);
+  if (ra_hasreg(key)) emit_tsi(as, MIPSI_LW, key, idx, kofs+(LJ_BE?4:0));
+  emit_tsi(as, MIPSI_LW, type, idx, kofs+(LJ_BE?0:4));
+  if (ofs > 32736)
+    emit_tsi(as, MIPSI_ADDU, dest, node, ra_allock(as, ofs, allow));
+}
+
+static void asm_newref(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
+    IRRef args[3];
+    args[0] = ASMREF_L;     /* lua_State *L */
+    args[1] = ir->op1;      /* GCtab *t     */
+    args[2] = ASMREF_TMP1;  /* cTValue *key */
+    asm_setupresult(as, ir, ci);  /* TValue * */
+    asm_gencall(as, ci, args);
+    asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op2);
+  }
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  /* NYI: Check that UREFO is still open and not aliasing a slot. */
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, MIPSI_LW, dest, v, RSET_GPR);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_tsi(as, MIPSI_ADDIU, dest, uv, (int32_t)offsetof(GCupval, tv));
+      emit_tsi(as, MIPSI_LBU, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_tsi(as, MIPSI_LW, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_tsi(as, MIPSI_LW, uv, func,
+	     (int32_t)offsetof(GCfuncL, uvptr) + 4*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lua_assert(!ra_used(ir));
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRRef ref = ir->op2, refk = ir->op1;
+  int32_t ofs = (int32_t)sizeof(GCstr);
+  Reg r;
+  if (irref_isk(ref)) {
+    IRRef tmp = refk; refk = ref; ref = tmp;
+  } else if (!irref_isk(refk)) {
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    IRIns *irr = IR(ir->op2);
+    if (ra_hasreg(irr->r)) {
+      ra_noweak(as, irr->r);
+      right = irr->r;
+    } else if (mayfuse(as, irr->op2) &&
+	       irr->o == IR_ADD && irref_isk(irr->op2) &&
+	       checki16(ofs + IR(irr->op2)->i)) {
+      ofs += IR(irr->op2)->i;
+      right = ra_alloc1(as, irr->op1, rset_exclude(RSET_GPR, left));
+    } else {
+      right = ra_allocref(as, ir->op2, rset_exclude(RSET_GPR, left));
+    }
+    emit_tsi(as, MIPSI_ADDIU, dest, dest, ofs);
+    emit_dst(as, MIPSI_ADDU, dest, left, right);
+    return;
+  }
+  r = ra_alloc1(as, ref, RSET_GPR);
+  ofs += IR(refk)->i;
+  if (checki16(ofs))
+    emit_tsi(as, MIPSI_ADDIU, dest, r, ofs);
+  else
+    emit_dst(as, MIPSI_ADDU, dest, r,
+	     ra_allock(as, ofs, rset_exclude(RSET_GPR, r)));
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static MIPSIns asm_fxloadins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return MIPSI_LB;
+  case IRT_U8: return MIPSI_LBU;
+  case IRT_I16: return MIPSI_LH;
+  case IRT_U16: return MIPSI_LHU;
+  case IRT_NUM: return MIPSI_LDC1;
+  case IRT_FLOAT: return MIPSI_LWC1;
+  default: return MIPSI_LW;
+  }
+}
+
+static MIPSIns asm_fxstoreins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return MIPSI_SB;
+  case IRT_I16: case IRT_U16: return MIPSI_SH;
+  case IRT_NUM: return MIPSI_SDC1;
+  case IRT_FLOAT: return MIPSI_SWC1;
+  default: return MIPSI_SW;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx = ra_alloc1(as, ir->op1, RSET_GPR);
+  MIPSIns mi = asm_fxloadins(ir);
+  int32_t ofs;
+  if (ir->op2 == IRFL_TAB_ARRAY) {
+    ofs = asm_fuseabase(as, ir->op1);
+    if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+      emit_tsi(as, MIPSI_ADDIU, dest, idx, ofs);
+      return;
+    }
+  }
+  ofs = field_ofs[ir->op2];
+  lua_assert(!irt_isfp(ir->t));
+  emit_tsi(as, mi, dest, idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1z(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    MIPSIns mi = asm_fxstoreins(ir);
+    lua_assert(!irt_isfp(ir->t));
+    emit_tsi(as, mi, src, idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+  lua_assert(!(ir->op2 & IRXLOAD_UNALIGNED));
+  asm_fusexref(as, asm_fxloadins(ir), dest, ir->op1, RSET_GPR, 0);
+}
+
+static void asm_xstore(ASMState *as, IRIns *ir, int32_t ofs)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1z(as, ir->op2, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src), ofs);
+  }
+}
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, type = RID_TMP, idx;
+  RegSet allow = RSET_GPR;
+  int32_t ofs = 0;
+  if (ra_used(ir)) {
+    lua_assert(irt_isnum(t) || irt_isint(t) || irt_isaddr(t));
+    dest = ra_dest(as, ir, irt_isnum(t) ? RSET_FPR : RSET_GPR);
+    rset_clear(allow, dest);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  rset_clear(allow, idx);
+  if (irt_isnum(t)) {
+    asm_guard(as, MIPSI_BEQ, type, RID_ZERO);
+    emit_tsi(as, MIPSI_SLTIU, type, type, (int32_t)LJ_TISNUM);
+    if (ra_hasreg(dest))
+      emit_hsi(as, MIPSI_LDC1, dest, idx, ofs);
+  } else {
+    asm_guard(as, MIPSI_BNE, type, ra_allock(as, irt_toitype(t), allow));
+    if (ra_hasreg(dest)) emit_tsi(as, MIPSI_LW, dest, idx, ofs+(LJ_BE?4:0));
+  }
+  emit_tsi(as, MIPSI_LW, type, idx, ofs+(LJ_BE?0:4));
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg idx, src = RID_NONE, type = RID_NONE;
+  int32_t ofs = 0;
+  if (ir->r == RID_SINK)
+    return;
+  if (irt_isnum(ir->t)) {
+    src = ra_alloc1(as, ir->op2, RSET_FPR);
+  } else {
+    if (!irt_ispri(ir->t)) {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+    }
+    type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+    rset_clear(allow, type);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  if (irt_isnum(ir->t)) {
+    emit_hsi(as, MIPSI_SDC1, src, idx, ofs);
+  } else {
+    if (ra_hasreg(src))
+      emit_tsi(as, MIPSI_SW, src, idx, ofs+(LJ_BE?4:0));
+    emit_tsi(as, MIPSI_SW, type, idx, ofs+(LJ_BE?0:4));
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, type = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  lua_assert(!(ir->op2 & IRSLOAD_PARENT));  /* Handled by asm_head_side(). */
+  lua_assert(irt_isguard(t) || !(ir->op2 & IRSLOAD_TYPECHECK));
+  lua_assert(!irt_isint(t) || (ir->op2 & (IRSLOAD_CONVERT|IRSLOAD_FRAME)));
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    dest = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+  } else if (ra_used(ir)) {
+    lua_assert(irt_isnum(t) || irt_isint(t) || irt_isaddr(t));
+    dest = ra_dest(as, ir, irt_isnum(t) ? RSET_FPR : RSET_GPR);
+    rset_clear(allow, dest);
+    base = ra_alloc1(as, REF_BASE, allow);
+    rset_clear(allow, base);
+    if ((ir->op2 & IRSLOAD_CONVERT)) {
+      if (irt_isint(t)) {
+	Reg tmp = ra_scratch(as, RSET_FPR);
+	emit_tg(as, MIPSI_MFC1, dest, tmp);
+	emit_fg(as, MIPSI_CVT_W_D, tmp, tmp);
+	dest = tmp;
+	t.irt = IRT_NUM;  /* Check for original type. */
+      } else {
+	Reg tmp = ra_scratch(as, RSET_GPR);
+	emit_fg(as, MIPSI_CVT_D_W, dest, dest);
+	emit_tg(as, MIPSI_MTC1, tmp, dest);
+	dest = tmp;
+	t.irt = IRT_INT;  /* Check for original type. */
+      }
+    }
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+  rset_clear(allow, base);
+dotypecheck:
+  if (irt_isnum(t)) {
+    if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+      asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_tsi(as, MIPSI_SLTIU, RID_TMP, RID_TMP, (int32_t)LJ_TISNUM);
+      type = RID_TMP;
+    }
+    if (ra_hasreg(dest)) emit_hsi(as, MIPSI_LDC1, dest, base, ofs);
+  } else {
+    if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+      Reg ktype = ra_allock(as, irt_toitype(t), allow);
+      asm_guard(as, MIPSI_BNE, RID_TMP, ktype);
+      type = RID_TMP;
+    }
+    if (ra_hasreg(dest)) emit_tsi(as, MIPSI_LW, dest, base, ofs ^ (LJ_BE?4:0));
+  }
+  if (ra_hasreg(type)) emit_tsi(as, MIPSI_LW, type, base, ofs ^ (LJ_BE?0:4));
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID ctypeid = (CTypeID)IR(ir->op1)->i;
+  CTSize sz = (ir->o == IR_CNEWI || ir->op2 == REF_NIL) ?
+	      lj_ctype_size(cts, ctypeid) : (CTSize)IR(ir->op2)->i;
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[2];
+  RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+  RegSet drop = RSET_SCRATCH;
+  lua_assert(sz != CTSIZE_INVALID);
+
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  as->gcsteps++;
+
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  if (ra_used(ir))
+    ra_destreg(as, ir, RID_RET);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    int32_t ofs = sizeof(GCcdata);
+    lua_assert(sz == 4 || sz == 8);
+    if (sz == 8) {
+      ofs += 4;
+      lua_assert((ir+1)->o == IR_HIOP);
+      if (LJ_LE) ir++;
+    }
+    for (;;) {
+      Reg r = ra_alloc1z(as, ir->op2, allow);
+      emit_tsi(as, MIPSI_SW, r, RID_RET, ofs);
+      rset_clear(allow, r);
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; if (LJ_BE) ir++; else ir--;
+    }
+  }
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  emit_tsi(as, MIPSI_SB, RID_RET+1, RID_RET, offsetof(GCcdata, gct));
+  emit_tsi(as, MIPSI_SH, RID_TMP, RID_RET, offsetof(GCcdata, ctypeid));
+  emit_ti(as, MIPSI_LI, RID_RET+1, ~LJ_TCDATA);
+  emit_ti(as, MIPSI_LI, RID_TMP, ctypeid); /* Lower 16 bit used. Sign-ext ok. */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#else
+#define asm_cnew(as, ir)	((void)0)
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg mark = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg link = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_tsi(as, MIPSI_SW, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_tsi(as, MIPSI_SB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_setgl(as, tab, gc.grayagain);
+  emit_getgl(as, link, gc.grayagain);
+  emit_dst(as, MIPSI_XOR, mark, mark, RID_TMP);  /* Clear black bit. */
+  emit_branch(as, MIPSI_BEQ, RID_TMP, RID_ZERO, l_end);
+  emit_tsi(as, MIPSI_ANDI, RID_TMP, mark, LJ_GC_BLACK);
+  emit_tsi(as, MIPSI_LBU, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lua_assert(IR(ir->op1)->o == IR_UREFC);
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_tsi(as, MIPSI_ADDIU, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(RSET_GPR, obj));
+  emit_branch(as, MIPSI_BEQ, RID_TMP, RID_ZERO, l_end);
+  emit_tsi(as, MIPSI_ANDI, tmp, tmp, LJ_GC_BLACK);
+  emit_branch(as, MIPSI_BEQ, RID_TMP, RID_ZERO, l_end);
+  emit_tsi(as, MIPSI_ANDI, RID_TMP, RID_TMP, LJ_GC_WHITES);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_tsi(as, MIPSI_LBU, tmp, obj,
+	   (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_tsi(as, MIPSI_LBU, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+static void asm_fparith(ASMState *as, IRIns *ir, MIPSIns mi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  emit_fgh(as, mi, dest, left, right);
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, MIPSIns mi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_fg(as, mi, dest, left);
+}
+
+static int asm_fpjoin_pow(ASMState *as, IRIns *ir)
+{
+  IRIns *irp = IR(ir->op1);
+  if (irp == ir-1 && irp->o == IR_MUL && !ra_used(irp)) {
+    IRIns *irpp = IR(irp->op1);
+    if (irpp == ir-2 && irpp->o == IR_FPMATH &&
+	irpp->op2 == IRFPM_LOG2 && !ra_used(irpp)) {
+      const CCallInfo *ci = &lj_ir_callinfo[IRCALL_pow];
+      IRRef args[2];
+      args[0] = irpp->op1;
+      args[1] = irp->op2;
+      asm_setupresult(as, ir, ci);
+      asm_gencall(as, ci, args);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, MIPSI_ADD_D);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    if (irref_isk(ir->op2)) {
+      int32_t k = IR(ir->op2)->i;
+      if (checki16(k)) {
+	emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+	return;
+      }
+    }
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_dst(as, MIPSI_ADDU, dest, left, right);
+  }
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, MIPSI_SUB_D);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    emit_dst(as, MIPSI_SUBU, dest, left, right);
+  }
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, MIPSI_MUL_D);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    emit_dst(as, MIPSI_MUL, dest, left, right);
+  }
+}
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, MIPSI_NEG_D);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    emit_dst(as, MIPSI_SUBU, dest, RID_ZERO, left);
+  }
+}
+
+static void asm_arithov(ASMState *as, IRIns *ir)
+{
+  Reg right, left, tmp, dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int k = IR(ir->op2)->i;
+    if (ir->o == IR_SUBOV) k = -k;
+    if (checki16(k)) {  /* (dest < left) == (k >= 0 ? 1 : 0) */
+      left = ra_alloc1(as, ir->op1, RSET_GPR);
+      asm_guard(as, k >= 0 ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_dst(as, MIPSI_SLT, RID_TMP, dest, dest == left ? RID_TMP : left);
+      emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+      if (dest == left) emit_move(as, RID_TMP, left);
+      return;
+    }
+  }
+  left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  tmp = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_GPR, left),
+						 right), dest));
+  asm_guard(as, MIPSI_BLTZ, RID_TMP, 0);
+  emit_dst(as, MIPSI_AND, RID_TMP, RID_TMP, tmp);
+  if (ir->o == IR_ADDOV) {  /* ((dest^left) & (dest^right)) < 0 */
+    emit_dst(as, MIPSI_XOR, RID_TMP, dest, dest == right ? RID_TMP : right);
+  } else {  /* ((dest^left) & (dest^~right)) < 0 */
+    emit_dst(as, MIPSI_XOR, RID_TMP, RID_TMP, dest);
+    emit_dst(as, MIPSI_NOR, RID_TMP, dest == right ? RID_TMP : right, RID_ZERO);
+  }
+  emit_dst(as, MIPSI_XOR, tmp, dest, dest == left ? RID_TMP : left);
+  emit_dst(as, ir->o == IR_ADDOV ? MIPSI_ADDU : MIPSI_SUBU, dest, left, right);
+  if (dest == left || dest == right)
+    emit_move(as, RID_TMP, dest == left ? left : right);
+}
+
+static void asm_mulov(ASMState *as, IRIns *ir)
+{
+#if LJ_DUALNUM
+#error "NYI: MULOV"
+#else
+  UNUSED(as); UNUSED(ir); lua_assert(0);  /* Unused in single-number mode. */
+#endif
+}
+
+#if LJ_HASFFI
+static void asm_add64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k == 0) {
+      emit_dst(as, MIPSI_ADDU, dest, left, RID_TMP);
+      goto loarith;
+    } else if (checki16(k)) {
+      emit_dst(as, MIPSI_ADDU, dest, dest, RID_TMP);
+      emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+      goto loarith;
+    }
+  }
+  emit_dst(as, MIPSI_ADDU, dest, dest, RID_TMP);
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_dst(as, MIPSI_ADDU, dest, left, right);
+loarith:
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k == 0) {
+      if (dest != left)
+	emit_move(as, dest, left);
+      return;
+    } else if (checki16(k)) {
+      if (dest == left) {
+	Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, left));
+	emit_move(as, dest, tmp);
+	dest = tmp;
+      }
+      emit_dst(as, MIPSI_SLTU, RID_TMP, dest, left);
+      emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+      return;
+    }
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  if (dest == left && dest == right) {
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), right));
+    emit_move(as, dest, tmp);
+    dest = tmp;
+  }
+  emit_dst(as, MIPSI_SLTU, RID_TMP, dest, dest == left ? right : left);
+  emit_dst(as, MIPSI_ADDU, dest, left, right);
+}
+
+static void asm_sub64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  emit_dst(as, MIPSI_SUBU, dest, dest, RID_TMP);
+  emit_dst(as, MIPSI_SUBU, dest, left, right);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  if (dest == left) {
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), right));
+    emit_move(as, dest, tmp);
+    dest = tmp;
+  }
+  emit_dst(as, MIPSI_SLTU, RID_TMP, left, dest);
+  emit_dst(as, MIPSI_SUBU, dest, left, right);
+}
+
+static void asm_neg64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_dst(as, MIPSI_SUBU, dest, dest, RID_TMP);
+  emit_dst(as, MIPSI_SUBU, dest, RID_ZERO, left);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_dst(as, MIPSI_SLTU, RID_TMP, RID_ZERO, dest);
+  emit_dst(as, MIPSI_SUBU, dest, RID_ZERO, left);
+}
+#endif
+
+static void asm_bitnot(ASMState *as, IRIns *ir)
+{
+  Reg left, right, dest = ra_dest(as, ir, RSET_GPR);
+  IRIns *irl = IR(ir->op1);
+  if (mayfuse(as, ir->op1) && irl->o == IR_BOR) {
+    left = ra_alloc2(as, irl, RSET_GPR);
+    right = (left >> 8); left &= 255;
+  } else {
+    left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    right = RID_ZERO;
+  }
+  emit_dst(as, MIPSI_NOR, dest, left, right);
+}
+
+static void asm_bitswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if ((as->flags & JIT_F_MIPS32R2)) {
+    emit_dta(as, MIPSI_ROTR, dest, RID_TMP, 16);
+    emit_dst(as, MIPSI_WSBH, RID_TMP, 0, left);
+  } else {
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), dest));
+    emit_dst(as, MIPSI_OR, dest, dest, tmp);
+    emit_dst(as, MIPSI_OR, dest, dest, RID_TMP);
+    emit_tsi(as, MIPSI_ANDI, dest, dest, 0xff00);
+    emit_dta(as, MIPSI_SLL, RID_TMP, RID_TMP, 8);
+    emit_dta(as, MIPSI_SRL, dest, left, 8);
+    emit_tsi(as, MIPSI_ANDI, RID_TMP, left, 0xff00);
+    emit_dst(as, MIPSI_OR, tmp, tmp, RID_TMP);
+    emit_dta(as, MIPSI_SRL, tmp, left, 24);
+    emit_dta(as, MIPSI_SLL, RID_TMP, left, 24);
+  }
+}
+
+static void asm_bitop(ASMState *as, IRIns *ir, MIPSIns mi, MIPSIns mik)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (checku16(k)) {
+      emit_tsi(as, mik, dest, left, k);
+      return;
+    }
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_dst(as, mi, dest, left, right);
+}
+
+static void asm_bitshift(ASMState *as, IRIns *ir, MIPSIns mi, MIPSIns mik)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    uint32_t shift = (uint32_t)(IR(ir->op2)->i & 31);
+    emit_dta(as, mik, dest, ra_hintalloc(as, ir->op1, dest, RSET_GPR), shift);
+  } else {
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    emit_dst(as, mi, dest, right, left);  /* Shift amount is in rs. */
+  }
+}
+
+static void asm_bitror(ASMState *as, IRIns *ir)
+{
+  if ((as->flags & JIT_F_MIPS32R2)) {
+    asm_bitshift(as, ir, MIPSI_ROTRV, MIPSI_ROTR);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (irref_isk(ir->op2)) {  /* Constant shifts. */
+      uint32_t shift = (uint32_t)(IR(ir->op2)->i & 31);
+      Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+      emit_rotr(as, dest, left, RID_TMP, shift);
+    } else {
+      Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+      right = (left >> 8); left &= 255;
+      emit_dst(as, MIPSI_OR, dest, dest, RID_TMP);
+      emit_dst(as, MIPSI_SRLV, dest, right, left);
+      emit_dst(as, MIPSI_SLLV, RID_TMP, RID_TMP, left);
+      emit_dst(as, MIPSI_SUBU, RID_TMP, ra_allock(as, 32, RSET_GPR), right);
+    }
+  }
+}
+
+static void asm_min_max(ASMState *as, IRIns *ir, int ismax)
+{
+  if (irt_isnum(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    if (dest == left) {
+      emit_fg(as, MIPSI_MOVT_D, dest, right);
+    } else {
+      emit_fg(as, MIPSI_MOVF_D, dest, left);
+      if (dest != right) emit_fg(as, MIPSI_MOV_D, dest, right);
+    }
+    emit_fgh(as, MIPSI_C_OLT_D, 0, ismax ? left : right, ismax ? right : left);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    if (dest == left) {
+      emit_dst(as, MIPSI_MOVN, dest, right, RID_TMP);
+    } else {
+      emit_dst(as, MIPSI_MOVZ, dest, left, RID_TMP);
+      if (dest != right) emit_move(as, dest, right);
+    }
+    emit_dst(as, MIPSI_SLT, RID_TMP,
+	     ismax ? left : right, ismax ? right : left);
+  }
+}
+
+/* -- Comparisons --------------------------------------------------------- */
+
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+  /* ORDER IR: LT GE LE GT  ULT UGE ULE UGT. */
+  IROp op = ir->o;
+  if (irt_isnum(ir->t)) {
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    asm_guard(as, (op&1) ? MIPSI_BC1T : MIPSI_BC1F, 0, 0);
+    emit_fgh(as, MIPSI_C_OLT_D + ((op&3) ^ ((op>>2)&1)), 0, left, right);
+  } else {
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (op == IR_ABC) op = IR_UGT;
+    if ((op&4) == 0 && irref_isk(ir->op2) && IR(ir->op2)->i == 0) {
+      MIPSIns mi = (op&2) ? ((op&1) ? MIPSI_BLEZ : MIPSI_BGTZ) :
+			    ((op&1) ? MIPSI_BLTZ : MIPSI_BGEZ);
+      asm_guard(as, mi, left, 0);
+    } else {
+      if (irref_isk(ir->op2)) {
+	int32_t k = IR(ir->op2)->i;
+	if ((op&2)) k++;
+	if (checki16(k)) {
+	  asm_guard(as, (op&1) ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+	  emit_tsi(as, (op&4) ? MIPSI_SLTIU : MIPSI_SLTI,
+		   RID_TMP, left, k);
+	  return;
+	}
+      }
+      right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+      asm_guard(as, ((op^(op>>1))&1) ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_dst(as, (op&4) ? MIPSI_SLTU : MIPSI_SLT,
+	       RID_TMP, (op&2) ? right : left, (op&2) ? left : right);
+    }
+  }
+}
+
+static void asm_compeq(ASMState *as, IRIns *ir)
+{
+  Reg right, left = ra_alloc2(as, ir, irt_isnum(ir->t) ? RSET_FPR : RSET_GPR);
+  right = (left >> 8); left &= 255;
+  if (irt_isnum(ir->t)) {
+    asm_guard(as, (ir->o & 1) ? MIPSI_BC1T : MIPSI_BC1F, 0, 0);
+    emit_fgh(as, MIPSI_C_EQ_D, 0, left, right);
+  } else {
+    asm_guard(as, (ir->o & 1) ? MIPSI_BEQ : MIPSI_BNE, left, right);
+  }
+}
+
+#if LJ_HASFFI
+/* 64 bit integer comparisons. */
+static void asm_comp64(ASMState *as, IRIns *ir)
+{
+  /* ORDER IR: LT GE LE GT  ULT UGE ULE UGT. */
+  IROp op = (ir-1)->o;
+  MCLabel l_end;
+  Reg rightlo, leftlo, righthi, lefthi = ra_alloc2(as, ir, RSET_GPR);
+  righthi = (lefthi >> 8); lefthi &= 255;
+  leftlo = ra_alloc2(as, ir-1,
+		     rset_exclude(rset_exclude(RSET_GPR, lefthi), righthi));
+  rightlo = (leftlo >> 8); leftlo &= 255;
+  asm_guard(as, ((op^(op>>1))&1) ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+  l_end = emit_label(as);
+  if (lefthi != righthi)
+    emit_dst(as, (op&4) ? MIPSI_SLTU : MIPSI_SLT, RID_TMP,
+	     (op&2) ? righthi : lefthi, (op&2) ? lefthi : righthi);
+  emit_dst(as, MIPSI_SLTU, RID_TMP,
+	   (op&2) ? rightlo : leftlo, (op&2) ? leftlo : rightlo);
+  if (lefthi != righthi)
+    emit_branch(as, MIPSI_BEQ, lefthi, righthi, l_end);
+}
+
+static void asm_comp64eq(ASMState *as, IRIns *ir)
+{
+  Reg tmp, right, left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  asm_guard(as, ((ir-1)->o & 1) ? MIPSI_BEQ : MIPSI_BNE, RID_TMP, RID_ZERO);
+  tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), right));
+  emit_dst(as, MIPSI_OR, RID_TMP, RID_TMP, tmp);
+  emit_dst(as, MIPSI_XOR, tmp, left, right);
+  left = ra_alloc2(as, ir-1, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  emit_dst(as, MIPSI_XOR, RID_TMP, left, right);
+}
+#endif
+
+/* -- Support for 64 bit ops in 32 bit mode ------------------------------- */
+
+/* Hiword op of a split 64 bit op. Previous op must be the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+#if LJ_HASFFI
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+  if ((ir-1)->o == IR_CONV) {  /* Conversions to/from 64 bit. */
+    as->curins--;  /* Always skip the CONV. */
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+  } else if ((ir-1)->o < IR_EQ) {  /* 64 bit integer comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+    asm_comp64(as, ir);
+    return;
+  } else if ((ir-1)->o <= IR_NE) {  /* 64 bit integer comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+    asm_comp64eq(as, ir);
+    return;
+  } else if ((ir-1)->o == IR_XSTORE) {
+    as->curins--;  /* Handle both stores here. */
+    if ((ir-1)->r != RID_SINK) {
+      asm_xstore(as, ir, LJ_LE ? 4 : 0);
+      asm_xstore(as, ir-1, LJ_LE ? 0 : 4);
+    }
+    return;
+  }
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+  case IR_ADD: as->curins--; asm_add64(as, ir); break;
+  case IR_SUB: as->curins--; asm_sub64(as, ir); break;
+  case IR_NEG: as->curins--; asm_neg64(as, ir); break;
+  case IR_CALLN:
+  case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+  default: lua_assert(0); break;
+  }
+#else
+  UNUSED(as); UNUSED(ir); lua_assert(0);  /* Unused without FFI. */
+#endif
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  /* Try to get an unused temp. register, otherwise spill/restore RID_RET*. */
+  Reg tmp, pbase = irp ? (ra_hasreg(irp->r) ? irp->r : RID_TMP) : RID_BASE;
+  ExitNo oldsnap = as->snapno;
+  rset_clear(allow, pbase);
+  tmp = allow ? rset_pickbot(allow) :
+		(pbase == RID_RETHI ? RID_RETLO : RID_RETHI);
+  as->snapno = exitno;
+  asm_guard(as, MIPSI_BNE, RID_TMP, RID_ZERO);
+  as->snapno = oldsnap;
+  if (allow == RSET_EMPTY)  /* Restore temp. register. */
+    emit_tsi(as, MIPSI_LW, tmp, RID_SP, 0);
+  else
+    ra_modified(as, tmp);
+  emit_tsi(as, MIPSI_SLTIU, RID_TMP, RID_TMP, (int32_t)(8*topslot));
+  emit_dst(as, MIPSI_SUBU, RID_TMP, tmp, pbase);
+  emit_tsi(as, MIPSI_LW, tmp, tmp, offsetof(lua_State, maxstack));
+  if (pbase == RID_TMP)
+    emit_getgl(as, RID_TMP, jit_base);
+  emit_getgl(as, tmp, jit_L);
+  if (allow == RSET_EMPTY)  /* Spill temp. register. */
+    emit_tsi(as, MIPSI_SW, tmp, RID_SP, 0);
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1];
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_hsi(as, MIPSI_SDC1, src, RID_BASE, ofs);
+    } else {
+      Reg type;
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      lua_assert(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t));
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, allow);
+	rset_clear(allow, src);
+	emit_tsi(as, MIPSI_SW, src, RID_BASE, ofs+(LJ_BE?4:0));
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s == 0) continue;  /* Do not overwrite link to previous frame. */
+	type = ra_allock(as, (int32_t)(*flinks--), allow);
+      } else {
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      }
+      emit_tsi(as, MIPSI_SW, type, RID_BASE, ofs+(LJ_BE?0:4));
+    }
+    checkmclim(as);
+  }
+  lua_assert(map + nent == flinks);
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  /* Assumes asm_snap_prep() already done. */
+  asm_guard(as, MIPSI_BNE, RID_RET, RID_ZERO);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  emit_tsi(as, MIPSI_ADDIU, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  tmp = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_branch(as, MIPSI_BNE, RID_TMP, RID_ZERO, l_end);
+  emit_dst(as, MIPSI_SLTU, RID_TMP, RID_TMP, tmp);
+  emit_getgl(as, tmp, gc.threshold);
+  emit_getgl(as, RID_TMP, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  p[-1] = MIPSI_NOP;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    /* asm_guard already inverted the cond branch. Only patch the target. */
+    p[-3] |= ((target-p+2) & 0x0000ffffu);
+  } else {
+    p[-2] = MIPSI_J|(((uintptr_t)target>>2)&0x03ffffffu);
+  }
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (as->loopinv) as->mctop--;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (r != RID_BASE)
+      emit_move(as, r, RID_BASE);
+  }
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (as->loopinv) as->mctop--;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (irp->r == r) {
+      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+    } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
+      rset_clear(allow, irp->r);
+      emit_move(as, r, irp->r);  /* Move from coalesced parent reg. */
+    } else {
+      emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
+    }
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *target = lnk ? traceref(as->J,lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  int32_t spadj = as->T->spadjust;
+  MCode *p = as->mctop-1;
+  *p = spadj ? (MIPSI_ADDIU|MIPSF_T(RID_SP)|MIPSF_S(RID_SP)|spadj) : MIPSI_NOP;
+  p[-1] = MIPSI_J|(((uintptr_t)target>>2)&0x03ffffffu);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  as->mcp = as->mctop-2;  /* Leave room for branch plus nop or stack adj. */
+  as->invmcp = as->loopref ? as->mcp : NULL;
+}
+
+/* -- Instruction dispatch ------------------------------------------------ */
+
+/* Assemble a single instruction. */
+static void asm_ir(ASMState *as, IRIns *ir)
+{
+  switch ((IROp)ir->o) {
+  /* Miscellaneous ops. */
+  case IR_LOOP: asm_loop(as); break;
+  case IR_NOP: case IR_XBAR: lua_assert(!ra_used(ir)); break;
+  case IR_USE:
+    ra_alloc1(as, ir->op1, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR); break;
+  case IR_PHI: asm_phi(as, ir); break;
+  case IR_HIOP: asm_hiop(as, ir); break;
+  case IR_GCSTEP: asm_gcstep(as, ir); break;
+
+  /* Guarded assertions. */
+  case IR_EQ: case IR_NE: asm_compeq(as, ir); break;
+  case IR_LT: case IR_GE: case IR_LE: case IR_GT:
+  case IR_ULT: case IR_UGE: case IR_ULE: case IR_UGT:
+  case IR_ABC:
+    asm_comp(as, ir);
+    break;
+
+  case IR_RETF: asm_retf(as, ir); break;
+
+  /* Bit ops. */
+  case IR_BNOT: asm_bitnot(as, ir); break;
+  case IR_BSWAP: asm_bitswap(as, ir); break;
+
+  case IR_BAND: asm_bitop(as, ir, MIPSI_AND, MIPSI_ANDI); break;
+  case IR_BOR:  asm_bitop(as, ir, MIPSI_OR, MIPSI_ORI); break;
+  case IR_BXOR: asm_bitop(as, ir, MIPSI_XOR, MIPSI_XORI); break;
+
+  case IR_BSHL: asm_bitshift(as, ir, MIPSI_SLLV, MIPSI_SLL); break;
+  case IR_BSHR: asm_bitshift(as, ir, MIPSI_SRLV, MIPSI_SRL); break;
+  case IR_BSAR: asm_bitshift(as, ir, MIPSI_SRAV, MIPSI_SRA); break;
+  case IR_BROL: lua_assert(0); break;
+  case IR_BROR: asm_bitror(as, ir); break;
+
+  /* Arithmetic ops. */
+  case IR_ADD: asm_add(as, ir); break;
+  case IR_SUB: asm_sub(as, ir); break;
+  case IR_MUL: asm_mul(as, ir); break;
+  case IR_DIV: asm_fparith(as, ir, MIPSI_DIV_D); break;
+  case IR_MOD: asm_callid(as, ir, IRCALL_lj_vm_modi); break;
+  case IR_POW: asm_callid(as, ir, IRCALL_lj_vm_powi); break;
+  case IR_NEG: asm_neg(as, ir); break;
+
+  case IR_ABS: asm_fpunary(as, ir, MIPSI_ABS_D); break;
+  case IR_ATAN2: asm_callid(as, ir, IRCALL_atan2); break;
+  case IR_LDEXP: asm_callid(as, ir, IRCALL_ldexp); break;
+  case IR_MIN: asm_min_max(as, ir, 0); break;
+  case IR_MAX: asm_min_max(as, ir, 1); break;
+  case IR_FPMATH:
+    if (ir->op2 == IRFPM_EXP2 && asm_fpjoin_pow(as, ir))
+      break;
+    if (ir->op2 <= IRFPM_TRUNC)
+      asm_callround(as, ir, IRCALL_lj_vm_floor + ir->op2);
+    else if (ir->op2 == IRFPM_SQRT)
+      asm_fpunary(as, ir, MIPSI_SQRT_D);
+    else
+      asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2);
+    break;
+
+  /* Overflow-checking arithmetic ops. */
+  case IR_ADDOV: asm_arithov(as, ir); break;
+  case IR_SUBOV: asm_arithov(as, ir); break;
+  case IR_MULOV: asm_mulov(as, ir); break;
+
+  /* Memory references. */
+  case IR_AREF: asm_aref(as, ir); break;
+  case IR_HREF: asm_href(as, ir); break;
+  case IR_HREFK: asm_hrefk(as, ir); break;
+  case IR_NEWREF: asm_newref(as, ir); break;
+  case IR_UREFO: case IR_UREFC: asm_uref(as, ir); break;
+  case IR_FREF: asm_fref(as, ir); break;
+  case IR_STRREF: asm_strref(as, ir); break;
+
+  /* Loads and stores. */
+  case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+    asm_ahuvload(as, ir);
+    break;
+  case IR_FLOAD: asm_fload(as, ir); break;
+  case IR_XLOAD: asm_xload(as, ir); break;
+  case IR_SLOAD: asm_sload(as, ir); break;
+
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: asm_ahustore(as, ir); break;
+  case IR_FSTORE: asm_fstore(as, ir); break;
+  case IR_XSTORE: asm_xstore(as, ir, 0); break;
+
+  /* Allocations. */
+  case IR_SNEW: case IR_XSNEW: asm_snew(as, ir); break;
+  case IR_TNEW: asm_tnew(as, ir); break;
+  case IR_TDUP: asm_tdup(as, ir); break;
+  case IR_CNEW: case IR_CNEWI: asm_cnew(as, ir); break;
+
+  /* Write barriers. */
+  case IR_TBAR: asm_tbar(as, ir); break;
+  case IR_OBAR: asm_obar(as, ir); break;
+
+  /* Type conversions. */
+  case IR_CONV: asm_conv(as, ir); break;
+  case IR_TOBIT: asm_tobit(as, ir); break;
+  case IR_TOSTR: asm_tostr(as, ir); break;
+  case IR_STRTO: asm_strto(as, ir); break;
+
+  /* Calls. */
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: asm_call(as, ir); break;
+  case IR_CALLXS: asm_callx(as, ir); break;
+  case IR_CARG: break;
+
+  default:
+    setintV(&as->J->errinfo, ir->o);
+    lj_trace_err_info(as->J, LJ_TRERR_NYIIR);
+    break;
+  }
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = (int)CCI_NARGS(ci);
+  int nslots = 4, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++) {
+    if (args[i] && irt_isfp(IR(args[i])->t) &&
+	nfpr > 0 && !(ci->flags & CCI_VARARG)) {
+      nfpr--;
+      ngpr -= irt_isnum(IR(args[i])->t) ? 2 : 1;
+    } else if (args[i] && irt_isnum(IR(args[i])->t)) {
+      nfpr = 0;
+      ngpr = ngpr & ~1;
+      if (ngpr > 0) ngpr -= 2; else nslots = (nslots+3) & ~1;
+    } else {
+      nfpr = 0;
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+  }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return irt_isfp(ir->t) ? REGSP_HINT(RID_FPRET) : REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  asm_sparejump_setup(as);
+  asm_exitstub_setup(as);
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *px = exitstub_trace_addr(T, exitno);
+  MCode *cstart = NULL, *cstop = NULL;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MCode exitload = MIPSI_LI | MIPSF_T(RID_TMP) | exitno;
+  MCode tjump = MIPSI_J|(((uintptr_t)target>>2)&0x03ffffffu);
+  for (p++; p < pe; p++) {
+    if (*p == exitload) {  /* Look for load of exit number. */
+      if (((p[-1] ^ (px-p)) & 0xffffu) == 0) {  /* Look for exitstub branch. */
+	ptrdiff_t delta = target - p;
+	if (((delta + 0x8000) >> 16) == 0) {  /* Patch in-range branch. */
+	patchbranch:
+	  p[-1] = (p[-1] & 0xffff0000u) | (delta & 0xffffu);
+	  *p = MIPSI_NOP;  /* Replace the load of the exit number. */
+	  cstop = p;
+	  if (!cstart) cstart = p-1;
+	} else {  /* Branch out of range. Use spare jump slot in mcarea. */
+	  int i;
+	  for (i = 2; i < 2+MIPS_SPAREJUMP*2; i += 2) {
+	    if (mcarea[i] == tjump) {
+	      delta = mcarea+i - p;
+	      goto patchbranch;
+	    } else if (mcarea[i] == MIPSI_NOP) {
+	      mcarea[i] = tjump;
+	      cstart = mcarea+i;
+	      delta = mcarea+i - p;
+	      goto patchbranch;
+	    }
+	  }
+	  /* Ignore jump slot overflow. Child trace is simply not attached. */
+	}
+      } else if (p+1 == pe) {
+	/* Patch NOP after code for inverted loop branch. Use of J is ok. */
+	lua_assert(p[1] == MIPSI_NOP);
+	p[1] = tjump;
+	*p = MIPSI_NOP;  /* Replace the load of the exit number. */
+	cstop = p+2;
+	if (!cstart) cstart = p+1;
+      }
+    }
+  }
+  if (cstart) lj_mcode_sync(cstart, cstop);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/lib/luajit/src/lj_asm_ppc.h b/lib/luajit/src/lj_asm_ppc.h
new file mode 100644
index 00000000..e1a496a7
--- /dev/null
+++ b/lib/luajit/src/lj_asm_ppc.h
@@ -0,0 +1,2167 @@
+/*
+** PPC IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_allocref(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_allocref(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_allocref(as, ir->op2, allow);
+    left = ra_alloc1(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_allocref(as, ir->op1, allow);
+    right = ra_alloc1(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Setup exit stubs after the end of each trace. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  MCode *mxp = as->mctop;
+  /* 1: mflr r0; bl ->vm_exit_handler; li r0, traceno; bl <1; bl <1; ... */
+  for (i = nexits-1; (int32_t)i >= 0; i--)
+    *--mxp = PPCI_BL|(((-3-i)&0x00ffffffu)<<2);
+  *--mxp = PPCI_LI|PPCF_T(RID_TMP)|as->T->traceno;  /* Read by exit handler. */
+  mxp--;
+  *mxp = PPCI_BL|((((MCode *)(void *)lj_vm_exit_handler-mxp)&0x00ffffffu)<<2);
+  *--mxp = PPCI_MFLR|PPCF_T(RID_TMP);
+  as->mctop = mxp;
+}
+
+static MCode *asm_exitstub_addr(ASMState *as, ExitNo exitno)
+{
+  /* Keep this in-sync with exitstub_trace_addr(). */
+  return as->mctop + exitno + 3;
+}
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guardcc(ASMState *as, PPCCC cc)
+{
+  MCode *target = asm_exitstub_addr(as, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = PPCI_B | (((target-p) & 0x00ffffffu) << 2);
+    emit_condbranch(as, PPCI_BC, cc^4, p);
+    return;
+  }
+  emit_condbranch(as, PPCI_BC, cc, target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+/* Indicates load/store indexed is ok. */
+#define AHUREF_LSX	((int32_t)0x80000000)
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (checki16(ofs)) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	}
+	if (*ofsp == AHUREF_LSX) {
+	  Reg base = ra_alloc1(as, ir->op1, allow);
+	  Reg idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+	  return base | (idx << 8);
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (checki16(ofs)) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	int32_t ofs = i32ptr(&gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.tv);
+	int32_t jgl = (intptr_t)J2G(as->J);
+	if ((uint32_t)(ofs-jgl) < 65536) {
+	  *ofsp = ofs-jgl-32768;
+	  return RID_JGL;
+	} else {
+	  *ofsp = (int16_t)ofs;
+	  return ra_allock(as, ofs-(int16_t)ofs, allow);
+	}
+      }
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, PPCIns pi, Reg rt, IRRef ref,
+			 RegSet allow, int32_t ofs)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    if (ir->o == IR_ADD) {
+      int32_t ofs2;
+      if (irref_isk(ir->op2) && (ofs2 = ofs + IR(ir->op2)->i, checki16(ofs2))) {
+	ofs = ofs2;
+	ref = ir->op1;
+      } else if (ofs == 0) {
+	Reg right, left = ra_alloc2(as, ir, allow);
+	right = (left >> 8); left &= 255;
+	emit_fab(as, PPCI_LWZX | ((pi >> 20) & 0x780), rt, left, right);
+	return;
+      }
+    } else if (ir->o == IR_STRREF) {
+      lua_assert(ofs == 0);
+      ofs = (int32_t)sizeof(GCstr);
+      if (irref_isk(ir->op2)) {
+	ofs += IR(ir->op2)->i;
+	ref = ir->op1;
+      } else if (irref_isk(ir->op1)) {
+	ofs += IR(ir->op1)->i;
+	ref = ir->op2;
+      } else {
+	/* NYI: Fuse ADD with constant. */
+	Reg tmp, right, left = ra_alloc2(as, ir, allow);
+	right = (left >> 8); left &= 255;
+	tmp = ra_scratch(as, rset_exclude(rset_exclude(allow, left), right));
+	emit_fai(as, pi, rt, tmp, ofs);
+	emit_tab(as, PPCI_ADD, tmp, left, right);
+	return;
+      }
+      if (!checki16(ofs)) {
+	Reg left = ra_alloc1(as, ref, allow);
+	Reg right = ra_allock(as, ofs, rset_exclude(allow, left));
+	emit_fab(as, PPCI_LWZX | ((pi >> 20) & 0x780), rt, left, right);
+	return;
+      }
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+  emit_fai(as, pi, rt, base, ofs);
+}
+
+/* Fuse XLOAD/XSTORE reference into indexed-only load/store operand. */
+static void asm_fusexrefx(ASMState *as, PPCIns pi, Reg rt, IRRef ref,
+			  RegSet allow)
+{
+  IRIns *ira = IR(ref);
+  Reg right, left;
+  if (canfuse(as, ira) && ira->o == IR_ADD && ra_noreg(ira->r)) {
+    left = ra_alloc2(as, ira, allow);
+    right = (left >> 8); left &= 255;
+  } else {
+    right = ra_alloc1(as, ref, allow);
+    left = RID_R0;
+  }
+  emit_tab(as, pi, rt, left, right);
+}
+
+/* Fuse to multiply-add/sub instruction. */
+static int asm_fusemadd(ASMState *as, IRIns *ir, PPCIns pi, PPCIns pir)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  IRIns *irm;
+  if (lref != rref &&
+      ((mayfuse(as, lref) && (irm = IR(lref), irm->o == IR_MUL) &&
+	ra_noreg(irm->r)) ||
+       (mayfuse(as, rref) && (irm = IR(rref), irm->o == IR_MUL) &&
+	(rref = lref, pi = pir, ra_noreg(irm->r))))) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg add = ra_alloc1(as, rref, RSET_FPR);
+    Reg right, left = ra_alloc2(as, irm, rset_exclude(RSET_FPR, add));
+    right = (left >> 8); left &= 255;
+    emit_facb(as, pi, dest, left, right, add);
+    return 1;
+  }
+  return 0;
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_NARGS(ci);
+  int32_t ofs = 8;
+  Reg gpr = REGARG_FIRSTGPR, fpr = REGARG_FIRSTFPR;
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func);
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    if (ref) {
+      IRIns *ir = IR(ref);
+      if (irt_isfp(ir->t)) {
+	if (fpr <= REGARG_LASTFPR) {
+	  lua_assert(rset_test(as->freeset, fpr));  /* Already evicted. */
+	  ra_leftov(as, fpr, ref);
+	  fpr++;
+	} else {
+	  Reg r = ra_alloc1(as, ref, RSET_FPR);
+	  if (irt_isnum(ir->t)) ofs = (ofs + 4) & ~4;
+	  emit_spstore(as, ir, r, ofs);
+	  ofs += irt_isnum(ir->t) ? 8 : 4;
+	}
+      } else {
+	if (gpr <= REGARG_LASTGPR) {
+	  lua_assert(rset_test(as->freeset, gpr));  /* Already evicted. */
+	  ra_leftov(as, gpr, ref);
+	  gpr++;
+	} else {
+	  Reg r = ra_alloc1(as, ref, RSET_GPR);
+	  emit_spstore(as, ir, r, ofs);
+	  ofs += 4;
+	}
+      }
+    } else {
+      if (gpr <= REGARG_LASTGPR)
+	gpr++;
+      else
+	ofs += 4;
+    }
+    checkmclim(as);
+  }
+  if ((ci->flags & CCI_VARARG))  /* Vararg calls need to know about FPR use. */
+    emit_tab(as, fpr == REGARG_FIRSTFPR ? PPCI_CRXOR : PPCI_CREQV, 6, 6, 6);
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP);
+  if ((ci->flags & CCI_NOFPRCLOBBER))
+    drop &= ~RSET_FPR;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lua_assert(!irt_ispri(ir->t));
+    if (irt_isfp(ir->t)) {
+      if ((ci->flags & CCI_CASTU64)) {
+	/* Use spill slot or temp slots. */
+	int32_t ofs = ir->s ? sps_scale(ir->s) : SPOFS_TMP;
+	Reg dest = ir->r;
+	if (ra_hasreg(dest)) {
+	  ra_free(as, dest);
+	  ra_modified(as, dest);
+	  emit_fai(as, PPCI_LFD, dest, RID_SP, ofs);
+	}
+	emit_tai(as, PPCI_STW, RID_RETHI, RID_SP, ofs);
+	emit_tai(as, PPCI_STW, RID_RETLO, RID_SP, ofs+4);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+}
+
+static void asm_call(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX];
+  const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+  asm_collectargs(as, ir, ci, args);
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(void *)(irf->i);
+  } else {  /* Need a non-argument register for indirect calls. */
+    RegSet allow = RSET_GPR & ~RSET_RANGE(RID_R0, REGARG_LASTGPR+1);
+    Reg freg = ra_alloc1(as, func, allow);
+    *--as->mcp = PPCI_BCTRL;
+    *--as->mcp = PPCI_MTCTR | PPCF_T(freg);
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+static void asm_callid(ASMState *as, IRIns *ir, IRCallID id)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+  emit_ab(as, PPCI_CMPW, RID_TMP,
+	  ra_allock(as, i32ptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_tai(as, PPCI_LWZ, RID_TMP, base, -8);
+}
+
+/* -- Type conversions ---------------------------------------------------- */
+
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  RegSet allow = RSET_FPR;
+  Reg tmp = ra_scratch(as, rset_clear(allow, left));
+  Reg fbias = ra_scratch(as, rset_clear(allow, tmp));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg hibias = ra_allock(as, 0x43300000, rset_exclude(RSET_GPR, dest));
+  asm_guardcc(as, CC_NE);
+  emit_fab(as, PPCI_FCMPU, 0, tmp, left);
+  emit_fab(as, PPCI_FSUB, tmp, tmp, fbias);
+  emit_fai(as, PPCI_LFD, tmp, RID_SP, SPOFS_TMP);
+  emit_tai(as, PPCI_STW, RID_TMP, RID_SP, SPOFS_TMPLO);
+  emit_tai(as, PPCI_STW, hibias, RID_SP, SPOFS_TMPHI);
+  emit_asi(as, PPCI_XORIS, RID_TMP, dest, 0x8000);
+  emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+  emit_lsptr(as, PPCI_LFS, (fbias & 31),
+	     (void *)lj_ir_k64_find(as->J, U64x(59800004,59800000)),
+	     RSET_GPR);
+  emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+  emit_fb(as, PPCI_FCTIWZ, tmp, left);
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+  emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+  emit_fab(as, PPCI_FADD, tmp, left, right);
+}
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+  IRRef lref = ir->op1;
+  lua_assert(irt_type(ir->t) != st);
+  lua_assert(!(irt_isint64(ir->t) ||
+	       (st == IRT_I64 || st == IRT_U64))); /* Handled by SPLIT. */
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      if (st == IRT_NUM)  /* double -> float conversion. */
+	emit_fb(as, PPCI_FRSP, dest, ra_alloc1(as, lref, RSET_FPR));
+      else  /* float -> double conversion is a no-op on PPC. */
+	ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    } else {  /* Integer to FP conversion. */
+      /* IRT_INT: Flip hibit, bias with 2^52, subtract 2^52+2^31. */
+      /* IRT_U32: Bias with 2^52, subtract 2^52. */
+      RegSet allow = RSET_GPR;
+      Reg left = ra_alloc1(as, lref, allow);
+      Reg hibias = ra_allock(as, 0x43300000, rset_clear(allow, left));
+      Reg fbias = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      const float *kbias;
+      if (irt_isfloat(ir->t)) emit_fb(as, PPCI_FRSP, dest, dest);
+      emit_fab(as, PPCI_FSUB, dest, dest, fbias);
+      emit_fai(as, PPCI_LFD, dest, RID_SP, SPOFS_TMP);
+      kbias = (const float *)lj_ir_k64_find(as->J, U64x(59800004,59800000));
+      if (st == IRT_U32) kbias++;
+      emit_lsptr(as, PPCI_LFS, (fbias & 31), (void *)kbias,
+		 rset_clear(allow, hibias));
+      emit_tai(as, PPCI_STW, st == IRT_U32 ? left : RID_TMP,
+	       RID_SP, SPOFS_TMPLO);
+      emit_tai(as, PPCI_STW, hibias, RID_SP, SPOFS_TMPHI);
+      if (st != IRT_U32) emit_asi(as, PPCI_XORIS, RID_TMP, left, 0x8000);
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lua_assert(irt_isint(ir->t) && st == IRT_NUM);
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+      if (irt_isu32(ir->t)) {
+	/* Convert both x and x-2^31 to int and merge results. */
+	Reg tmpi = ra_scratch(as, rset_exclude(RSET_GPR, dest));
+	emit_asb(as, PPCI_OR, dest, dest, tmpi);  /* Select with mask idiom. */
+	emit_asb(as, PPCI_AND, tmpi, tmpi, RID_TMP);
+	emit_asb(as, PPCI_ANDC, dest, dest, RID_TMP);
+	emit_tai(as, PPCI_LWZ, tmpi, RID_SP, SPOFS_TMPLO);  /* tmp = (int)(x) */
+	emit_tai(as, PPCI_ADDIS, dest, dest, 0x8000);  /* dest += 2^31 */
+	emit_asb(as, PPCI_SRAWI, RID_TMP, dest, 31);  /* mask = -(dest < 0) */
+	emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+	emit_tai(as, PPCI_LWZ, dest,
+		 RID_SP, SPOFS_TMPLO);  /* dest = (int)(x-2^31) */
+	emit_fb(as, PPCI_FCTIWZ, tmp, left);
+	emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+	emit_fb(as, PPCI_FCTIWZ, tmp, tmp);
+	emit_fab(as, PPCI_FSUB, tmp, left, tmp);
+	emit_lsptr(as, PPCI_LFS, (tmp & 31),
+		   (void *)lj_ir_k64_find(as->J, U64x(4f000000,00000000)),
+		   RSET_GPR);
+      } else {
+	emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+	emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+	emit_fb(as, PPCI_FCTIWZ, tmp, left);
+      }
+    }
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+      Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+      lua_assert(irt_isint(ir->t) || irt_isu32(ir->t));
+      if ((ir->op2 & IRCONV_SEXT))
+	emit_as(as, st == IRT_I8 ? PPCI_EXTSB : PPCI_EXTSH, dest, left);
+      else
+	emit_rot(as, PPCI_RLWINM, dest, left, 0, st == IRT_U8 ? 24 : 16, 31);
+    } else {  /* 32/64 bit integer conversions. */
+      /* Only need to handle 32/32 bit no-op (cast) on 32 bit archs. */
+      ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    }
+  }
+}
+
+#if LJ_HASFFI
+static void asm_conv64(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)((ir-1)->op2 & IRCONV_SRCMASK);
+  IRType dt = (((ir-1)->op2 & IRCONV_DSTMASK) >> IRCONV_DSH);
+  IRCallID id;
+  const CCallInfo *ci;
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = (ir-1)->op1;
+  if (st == IRT_NUM || st == IRT_FLOAT) {
+    id = IRCALL_fp64_d2l + ((st == IRT_FLOAT) ? 2 : 0) + (dt - IRT_I64);
+    ir--;
+  } else {
+    id = IRCALL_fp64_l2d + ((dt == IRT_FLOAT) ? 2 : 0) + (st - IRT_I64);
+  }
+  ci = &lj_ir_callinfo[id];
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+#endif
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  int32_t ofs;
+  RegSet drop = RSET_SCRATCH;
+  if (ra_hasreg(ir->r)) rset_set(drop, ir->r);  /* Spill dest reg (if any). */
+  ra_evictset(as, drop);
+  asm_guardcc(as, CC_EQ);
+  emit_ai(as, PPCI_CMPWI, RID_RET, 0);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  /* Store the result to the spill slot or temp slots. */
+  ofs = ir->s ? sps_scale(ir->s) : SPOFS_TMP;
+  emit_tai(as, PPCI_ADDI, ra_releasetmp(as, ASMREF_TMP1), RID_SP, ofs);
+}
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (irt_isnum(ir->t)) {
+    if (irref_isk(ref))  /* Use the number constant itself as a TValue. */
+      ra_allockreg(as, i32ptr(ir_knum(ir)), dest);
+    else  /* Otherwise force a spill and use the spill slot. */
+      emit_tai(as, PPCI_ADDI, dest, RID_SP, ra_spill(as, ir));
+  } else {
+    /* Otherwise use g->tmptv to hold the TValue. */
+    RegSet allow = rset_exclude(RSET_GPR, dest);
+    Reg type;
+    emit_tai(as, PPCI_ADDI, dest, RID_JGL, offsetof(global_State, tmptv)-32768);
+    if (!irt_ispri(ir->t)) {
+      Reg src = ra_alloc1(as, ref, allow);
+      emit_setgl(as, src, tmptv.gcr);
+    }
+    type = ra_allock(as, irt_toitype(ir->t), allow);
+    emit_setgl(as, type, tmptv.it);
+  }
+}
+
+static void asm_tostr(ASMState *as, IRIns *ir)
+{
+  IRRef args[2];
+  args[0] = ASMREF_L;
+  as->gcsteps++;
+  if (irt_isnum(IR(ir->op1)->t) || (ir+1)->o == IR_HIOP) {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromnum];
+    args[1] = ASMREF_TMP1;  /* const lua_Number * */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+    asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op1);
+  } else {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromint];
+    args[1] = ir->op1;  /* int32_t k */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+  }
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    ofs += 8*IR(ir->op2)->i;
+    if (checki16(ofs)) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_tai(as, PPCI_ADDI, dest, base, ofs);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+  emit_tab(as, PPCI_ADD, dest, RID_TMP, base);
+  emit_slwi(as, RID_TMP, idx, 3);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = RID_NONE, tmp1 = RID_TMP, tmp2;
+  Reg tisnum = RID_NONE, tmpnum = RID_NONE;
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  IRType1 kt = irkey->t;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+
+  rset_clear(allow, tab);
+  if (irt_isnum(kt)) {
+    key = ra_alloc1(as, refkey, RSET_FPR);
+    tmpnum = ra_scratch(as, rset_exclude(RSET_FPR, key));
+    tisnum = ra_allock(as, (int32_t)LJ_TISNUM, allow);
+    rset_clear(allow, tisnum);
+  } else if (!irt_ispri(kt)) {
+    key = ra_alloc1(as, refkey, allow);
+    rset_clear(allow, key);
+  }
+  tmp2 = ra_scratch(as, allow);
+  rset_clear(allow, tmp2);
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  as->invmcp = NULL;
+  if (merge == IR_NE)
+    asm_guardcc(as, CC_EQ);
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+
+  /* Follow hash chain until the end. */
+  l_loop = --as->mcp;
+  emit_ai(as, PPCI_CMPWI, dest, 0);
+  emit_tai(as, PPCI_LWZ, dest, dest, (int32_t)offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ)
+    asm_guardcc(as, CC_EQ);
+  else
+    emit_condbranch(as, PPCI_BC|PPCF_Y, CC_EQ, l_end);
+  if (irt_isnum(kt)) {
+    emit_fab(as, PPCI_FCMPU, 0, tmpnum, key);
+    emit_condbranch(as, PPCI_BC, CC_GE, l_next);
+    emit_ab(as, PPCI_CMPLW, tmp1, tisnum);
+    emit_fai(as, PPCI_LFD, tmpnum, dest, (int32_t)offsetof(Node, key.n));
+  } else {
+    if (!irt_ispri(kt)) {
+      emit_ab(as, PPCI_CMPW, tmp2, key);
+      emit_condbranch(as, PPCI_BC, CC_NE, l_next);
+    }
+    emit_ai(as, PPCI_CMPWI, tmp1, irt_toitype(irkey->t));
+    if (!irt_ispri(kt))
+      emit_tai(as, PPCI_LWZ, tmp2, dest, (int32_t)offsetof(Node, key.gcr));
+  }
+  emit_tai(as, PPCI_LWZ, tmp1, dest, (int32_t)offsetof(Node, key.it));
+  *l_loop = PPCI_BC | PPCF_Y | PPCF_CC(CC_NE) |
+	    (((char *)as->mcp-(char *)l_loop) & 0xffffu);
+
+  /* Load main position relative to tab->node into dest. */
+  khash = irref_isk(refkey) ? ir_khash(irkey) : 1;
+  if (khash == 0) {
+    emit_tai(as, PPCI_LWZ, dest, tab, (int32_t)offsetof(GCtab, node));
+  } else {
+    Reg tmphash = tmp1;
+    if (irref_isk(refkey))
+      tmphash = ra_allock(as, khash, allow);
+    emit_tab(as, PPCI_ADD, dest, dest, tmp1);
+    emit_tai(as, PPCI_MULLI, tmp1, tmp1, sizeof(Node));
+    emit_asb(as, PPCI_AND, tmp1, tmp2, tmphash);
+    emit_tai(as, PPCI_LWZ, dest, tab, (int32_t)offsetof(GCtab, node));
+    emit_tai(as, PPCI_LWZ, tmp2, tab, (int32_t)offsetof(GCtab, hmask));
+    if (irref_isk(refkey)) {
+      /* Nothing to do. */
+    } else if (irt_isstr(kt)) {
+      emit_tai(as, PPCI_LWZ, tmp1, key, (int32_t)offsetof(GCstr, hash));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      emit_tab(as, PPCI_SUBF, tmp1, tmp2, tmp1);
+      emit_rotlwi(as, tmp2, tmp2, HASH_ROT3);
+      emit_asb(as, PPCI_XOR, tmp1, tmp1, tmp2);
+      emit_rotlwi(as, tmp1, tmp1, (HASH_ROT2+HASH_ROT1)&31);
+      emit_tab(as, PPCI_SUBF, tmp2, dest, tmp2);
+      if (irt_isnum(kt)) {
+	int32_t ofs = ra_spill(as, irkey);
+	emit_asb(as, PPCI_XOR, tmp2, tmp2, tmp1);
+	emit_rotlwi(as, dest, tmp1, HASH_ROT1);
+	emit_tab(as, PPCI_ADD, tmp1, tmp1, tmp1);
+	emit_tai(as, PPCI_LWZ, tmp2, RID_SP, ofs+4);
+	emit_tai(as, PPCI_LWZ, tmp1, RID_SP, ofs);
+      } else {
+	emit_asb(as, PPCI_XOR, tmp2, key, tmp1);
+	emit_rotlwi(as, dest, tmp1, HASH_ROT1);
+	emit_tai(as, PPCI_ADDI, tmp1, tmp2, HASH_BIAS);
+	emit_tai(as, PPCI_ADDIS, tmp2, key, (HASH_BIAS + 32768)>>16);
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  Reg dest = (ra_used(ir)||ofs > 32736) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg key = RID_NONE, type = RID_TMP, idx = node;
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  lua_assert(ofs % sizeof(Node) == 0);
+  if (ofs > 32736) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_tai(as, PPCI_ADDI, dest, node, ofs);
+  }
+  asm_guardcc(as, CC_NE);
+  if (!irt_ispri(irkey->t)) {
+    key = ra_scratch(as, allow);
+    rset_clear(allow, key);
+  }
+  rset_clear(allow, type);
+  if (irt_isnum(irkey->t)) {
+    emit_cmpi(as, key, (int32_t)ir_knum(irkey)->u32.lo);
+    asm_guardcc(as, CC_NE);
+    emit_cmpi(as, type, (int32_t)ir_knum(irkey)->u32.hi);
+  } else {
+    if (ra_hasreg(key)) {
+      emit_cmpi(as, key, irkey->i);  /* May use RID_TMP, i.e. type. */
+      asm_guardcc(as, CC_NE);
+    }
+    emit_ai(as, PPCI_CMPWI, type, irt_toitype(irkey->t));
+  }
+  if (ra_hasreg(key)) emit_tai(as, PPCI_LWZ, key, idx, kofs+4);
+  emit_tai(as, PPCI_LWZ, type, idx, kofs);
+  if (ofs > 32736) {
+    emit_tai(as, PPCI_ADDIS, dest, dest, (ofs + 32768) >> 16);
+    emit_tai(as, PPCI_ADDI, dest, node, ofs);
+  }
+}
+
+static void asm_newref(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
+  IRRef args[3];
+  if (ir->r == RID_SINK)
+    return;
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ir->op1;      /* GCtab *t     */
+  args[2] = ASMREF_TMP1;  /* cTValue *key */
+  asm_setupresult(as, ir, ci);  /* TValue * */
+  asm_gencall(as, ci, args);
+  asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op2);
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  /* NYI: Check that UREFO is still open and not aliasing a slot. */
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, PPCI_LWZ, dest, v, RSET_GPR);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guardcc(as, CC_NE);
+      emit_ai(as, PPCI_CMPWI, RID_TMP, 1);
+      emit_tai(as, PPCI_ADDI, dest, uv, (int32_t)offsetof(GCupval, tv));
+      emit_tai(as, PPCI_LBZ, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_tai(as, PPCI_LWZ, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_tai(as, PPCI_LWZ, uv, func,
+	     (int32_t)offsetof(GCfuncL, uvptr) + 4*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lua_assert(!ra_used(ir));
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRRef ref = ir->op2, refk = ir->op1;
+  int32_t ofs = (int32_t)sizeof(GCstr);
+  Reg r;
+  if (irref_isk(ref)) {
+    IRRef tmp = refk; refk = ref; ref = tmp;
+  } else if (!irref_isk(refk)) {
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    IRIns *irr = IR(ir->op2);
+    if (ra_hasreg(irr->r)) {
+      ra_noweak(as, irr->r);
+      right = irr->r;
+    } else if (mayfuse(as, irr->op2) &&
+	       irr->o == IR_ADD && irref_isk(irr->op2) &&
+	       checki16(ofs + IR(irr->op2)->i)) {
+      ofs += IR(irr->op2)->i;
+      right = ra_alloc1(as, irr->op1, rset_exclude(RSET_GPR, left));
+    } else {
+      right = ra_allocref(as, ir->op2, rset_exclude(RSET_GPR, left));
+    }
+    emit_tai(as, PPCI_ADDI, dest, dest, ofs);
+    emit_tab(as, PPCI_ADD, dest, left, right);
+    return;
+  }
+  r = ra_alloc1(as, ref, RSET_GPR);
+  ofs += IR(refk)->i;
+  if (checki16(ofs))
+    emit_tai(as, PPCI_ADDI, dest, r, ofs);
+  else
+    emit_tab(as, PPCI_ADD, dest, r,
+	     ra_allock(as, ofs, rset_exclude(RSET_GPR, r)));
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static PPCIns asm_fxloadins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return PPCI_LBZ;  /* Needs sign-extension. */
+  case IRT_U8: return PPCI_LBZ;
+  case IRT_I16: return PPCI_LHA;
+  case IRT_U16: return PPCI_LHZ;
+  case IRT_NUM: return PPCI_LFD;
+  case IRT_FLOAT: return PPCI_LFS;
+  default: return PPCI_LWZ;
+  }
+}
+
+static PPCIns asm_fxstoreins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return PPCI_STB;
+  case IRT_I16: case IRT_U16: return PPCI_STH;
+  case IRT_NUM: return PPCI_STFD;
+  case IRT_FLOAT: return PPCI_STFS;
+  default: return PPCI_STW;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx = ra_alloc1(as, ir->op1, RSET_GPR);
+  PPCIns pi = asm_fxloadins(ir);
+  int32_t ofs;
+  if (ir->op2 == IRFL_TAB_ARRAY) {
+    ofs = asm_fuseabase(as, ir->op1);
+    if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+      emit_tai(as, PPCI_ADDI, dest, idx, ofs);
+      return;
+    }
+  }
+  ofs = field_ofs[ir->op2];
+  lua_assert(!irt_isi8(ir->t));
+  emit_tai(as, pi, dest, idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    PPCIns pi = asm_fxstoreins(ir);
+    emit_tai(as, pi, src, idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+  lua_assert(!(ir->op2 & IRXLOAD_UNALIGNED));
+  if (irt_isi8(ir->t))
+    emit_as(as, PPCI_EXTSB, dest, dest);
+  asm_fusexref(as, asm_fxloadins(ir), dest, ir->op1, RSET_GPR, 0);
+}
+
+static void asm_xstore(ASMState *as, IRIns *ir, int32_t ofs)
+{
+  IRIns *irb;
+  if (ir->r == RID_SINK)
+    return;
+  if (ofs == 0 && mayfuse(as, ir->op2) && (irb = IR(ir->op2))->o == IR_BSWAP &&
+      ra_noreg(irb->r) && (irt_isint(ir->t) || irt_isu32(ir->t))) {
+    /* Fuse BSWAP with XSTORE to stwbrx. */
+    Reg src = ra_alloc1(as, irb->op1, RSET_GPR);
+    asm_fusexrefx(as, PPCI_STWBRX, src, ir->op1, rset_exclude(RSET_GPR, src));
+  } else {
+    Reg src = ra_alloc1(as, ir->op2, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src), ofs);
+  }
+}
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, type = RID_TMP, tmp = RID_TMP, idx;
+  RegSet allow = RSET_GPR;
+  int32_t ofs = AHUREF_LSX;
+  if (ra_used(ir)) {
+    lua_assert(irt_isnum(t) || irt_isint(t) || irt_isaddr(t));
+    if (!irt_isnum(t)) ofs = 0;
+    dest = ra_dest(as, ir, irt_isnum(t) ? RSET_FPR : RSET_GPR);
+    rset_clear(allow, dest);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  if (irt_isnum(t)) {
+    Reg tisnum = ra_allock(as, (int32_t)LJ_TISNUM, rset_exclude(allow, idx));
+    asm_guardcc(as, CC_GE);
+    emit_ab(as, PPCI_CMPLW, type, tisnum);
+    if (ra_hasreg(dest)) {
+      if (ofs == AHUREF_LSX) {
+	tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR,
+						       (idx&255)), (idx>>8)));
+	emit_fab(as, PPCI_LFDX, dest, (idx&255), tmp);
+      } else {
+	emit_fai(as, PPCI_LFD, dest, idx, ofs);
+      }
+    }
+  } else {
+    asm_guardcc(as, CC_NE);
+    emit_ai(as, PPCI_CMPWI, type, irt_toitype(t));
+    if (ra_hasreg(dest)) emit_tai(as, PPCI_LWZ, dest, idx, ofs+4);
+  }
+  if (ofs == AHUREF_LSX) {
+    emit_tab(as, PPCI_LWZX, type, (idx&255), tmp);
+    emit_slwi(as, tmp, (idx>>8), 3);
+  } else {
+    emit_tai(as, PPCI_LWZ, type, idx, ofs);
+  }
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg idx, src = RID_NONE, type = RID_NONE;
+  int32_t ofs = AHUREF_LSX;
+  if (ir->r == RID_SINK)
+    return;
+  if (irt_isnum(ir->t)) {
+    src = ra_alloc1(as, ir->op2, RSET_FPR);
+  } else {
+    if (!irt_ispri(ir->t)) {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+      ofs = 0;
+    }
+    type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+    rset_clear(allow, type);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  if (irt_isnum(ir->t)) {
+    if (ofs == AHUREF_LSX) {
+      emit_fab(as, PPCI_STFDX, src, (idx&255), RID_TMP);
+      emit_slwi(as, RID_TMP, (idx>>8), 3);
+    } else {
+      emit_fai(as, PPCI_STFD, src, idx, ofs);
+    }
+  } else {
+    if (ra_hasreg(src))
+      emit_tai(as, PPCI_STW, src, idx, ofs+4);
+    if (ofs == AHUREF_LSX) {
+      emit_tab(as, PPCI_STWX, type, (idx&255), RID_TMP);
+      emit_slwi(as, RID_TMP, (idx>>8), 3);
+    } else {
+      emit_tai(as, PPCI_STW, type, idx, ofs);
+    }
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 0 : 4);
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, type = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  lua_assert(!(ir->op2 & IRSLOAD_PARENT));  /* Handled by asm_head_side(). */
+  lua_assert(irt_isguard(t) || !(ir->op2 & IRSLOAD_TYPECHECK));
+  lua_assert(LJ_DUALNUM ||
+	     !irt_isint(t) || (ir->op2 & (IRSLOAD_CONVERT|IRSLOAD_FRAME)));
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    dest = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+  } else if (ra_used(ir)) {
+    lua_assert(irt_isnum(t) || irt_isint(t) || irt_isaddr(t));
+    dest = ra_dest(as, ir, irt_isnum(t) ? RSET_FPR : RSET_GPR);
+    rset_clear(allow, dest);
+    base = ra_alloc1(as, REF_BASE, allow);
+    rset_clear(allow, base);
+    if ((ir->op2 & IRSLOAD_CONVERT)) {
+      if (irt_isint(t)) {
+	emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+	dest = ra_scratch(as, RSET_FPR);
+	emit_fai(as, PPCI_STFD, dest, RID_SP, SPOFS_TMP);
+	emit_fb(as, PPCI_FCTIWZ, dest, dest);
+	t.irt = IRT_NUM;  /* Check for original type. */
+      } else {
+	Reg tmp = ra_scratch(as, allow);
+	Reg hibias = ra_allock(as, 0x43300000, rset_clear(allow, tmp));
+	Reg fbias = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+	emit_fab(as, PPCI_FSUB, dest, dest, fbias);
+	emit_fai(as, PPCI_LFD, dest, RID_SP, SPOFS_TMP);
+	emit_lsptr(as, PPCI_LFS, (fbias & 31),
+		   (void *)lj_ir_k64_find(as->J, U64x(59800004,59800000)),
+		   rset_clear(allow, hibias));
+	emit_tai(as, PPCI_STW, tmp, RID_SP, SPOFS_TMPLO);
+	emit_tai(as, PPCI_STW, hibias, RID_SP, SPOFS_TMPHI);
+	emit_asi(as, PPCI_XORIS, tmp, tmp, 0x8000);
+	dest = tmp;
+	t.irt = IRT_INT;  /* Check for original type. */
+      }
+    }
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+  rset_clear(allow, base);
+dotypecheck:
+  if (irt_isnum(t)) {
+    if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+      Reg tisnum = ra_allock(as, (int32_t)LJ_TISNUM, allow);
+      asm_guardcc(as, CC_GE);
+      emit_ab(as, PPCI_CMPLW, RID_TMP, tisnum);
+      type = RID_TMP;
+    }
+    if (ra_hasreg(dest)) emit_fai(as, PPCI_LFD, dest, base, ofs-4);
+  } else {
+    if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+      asm_guardcc(as, CC_NE);
+      emit_ai(as, PPCI_CMPWI, RID_TMP, irt_toitype(t));
+      type = RID_TMP;
+    }
+    if (ra_hasreg(dest)) emit_tai(as, PPCI_LWZ, dest, base, ofs);
+  }
+  if (ra_hasreg(type)) emit_tai(as, PPCI_LWZ, type, base, ofs-4);
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID ctypeid = (CTypeID)IR(ir->op1)->i;
+  CTSize sz = (ir->o == IR_CNEWI || ir->op2 == REF_NIL) ?
+	      lj_ctype_size(cts, ctypeid) : (CTSize)IR(ir->op2)->i;
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[2];
+  RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+  RegSet drop = RSET_SCRATCH;
+  lua_assert(sz != CTSIZE_INVALID);
+
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  as->gcsteps++;
+
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  if (ra_used(ir))
+    ra_destreg(as, ir, RID_RET);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    int32_t ofs = sizeof(GCcdata);
+    lua_assert(sz == 4 || sz == 8);
+    if (sz == 8) {
+      ofs += 4;
+      lua_assert((ir+1)->o == IR_HIOP);
+    }
+    for (;;) {
+      Reg r = ra_alloc1(as, ir->op2, allow);
+      emit_tai(as, PPCI_STW, r, RID_RET, ofs);
+      rset_clear(allow, r);
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; ir++;
+    }
+  }
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  emit_tai(as, PPCI_STB, RID_RET+1, RID_RET, offsetof(GCcdata, gct));
+  emit_tai(as, PPCI_STH, RID_TMP, RID_RET, offsetof(GCcdata, ctypeid));
+  emit_ti(as, PPCI_LI, RID_RET+1, ~LJ_TCDATA);
+  emit_ti(as, PPCI_LI, RID_TMP, ctypeid);  /* Lower 16 bit used. Sign-ext ok. */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#else
+#define asm_cnew(as, ir)	((void)0)
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg mark = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg link = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_tai(as, PPCI_STW, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_tai(as, PPCI_STB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_setgl(as, tab, gc.grayagain);
+  lua_assert(LJ_GC_BLACK == 0x04);
+  emit_rot(as, PPCI_RLWINM, mark, mark, 0, 30, 28);  /* Clear black bit. */
+  emit_getgl(as, link, gc.grayagain);
+  emit_condbranch(as, PPCI_BC|PPCF_Y, CC_EQ, l_end);
+  emit_asi(as, PPCI_ANDIDOT, RID_TMP, mark, LJ_GC_BLACK);
+  emit_tai(as, PPCI_LBZ, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lua_assert(IR(ir->op1)->o == IR_UREFC);
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_tai(as, PPCI_ADDI, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(RSET_GPR, obj));
+  emit_condbranch(as, PPCI_BC|PPCF_Y, CC_EQ, l_end);
+  emit_asi(as, PPCI_ANDIDOT, tmp, tmp, LJ_GC_BLACK);
+  emit_condbranch(as, PPCI_BC, CC_EQ, l_end);
+  emit_asi(as, PPCI_ANDIDOT, RID_TMP, RID_TMP, LJ_GC_WHITES);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_tai(as, PPCI_LBZ, tmp, obj,
+	   (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_tai(as, PPCI_LBZ, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+static void asm_fparith(ASMState *as, IRIns *ir, PPCIns pi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  if (pi == PPCI_FMUL)
+    emit_fac(as, pi, dest, left, right);
+  else
+    emit_fab(as, pi, dest, left, right);
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, PPCIns pi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_fb(as, pi, dest, left);
+}
+
+static int asm_fpjoin_pow(ASMState *as, IRIns *ir)
+{
+  IRIns *irp = IR(ir->op1);
+  if (irp == ir-1 && irp->o == IR_MUL && !ra_used(irp)) {
+    IRIns *irpp = IR(irp->op1);
+    if (irpp == ir-2 && irpp->o == IR_FPMATH &&
+	irpp->op2 == IRFPM_LOG2 && !ra_used(irpp)) {
+      const CCallInfo *ci = &lj_ir_callinfo[IRCALL_pow];
+      IRRef args[2];
+      args[0] = irpp->op1;
+      args[1] = irp->op2;
+      asm_setupresult(as, ir, ci);
+      asm_gencall(as, ci, args);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, PPCI_FMADD, PPCI_FMADD))
+      asm_fparith(as, ir, PPCI_FADD);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    PPCIns pi;
+    if (irref_isk(ir->op2)) {
+      int32_t k = IR(ir->op2)->i;
+      if (checki16(k)) {
+	pi = PPCI_ADDI;
+	/* May fail due to spills/restores above, but simplifies the logic. */
+	if (as->flagmcp == as->mcp) {
+	  as->flagmcp = NULL;
+	  as->mcp++;
+	  pi = PPCI_ADDICDOT;
+	}
+	emit_tai(as, pi, dest, left, k);
+	return;
+      } else if ((k & 0xffff) == 0) {
+	emit_tai(as, PPCI_ADDIS, dest, left, (k >> 16));
+	return;
+      } else if (!as->sectref) {
+	emit_tai(as, PPCI_ADDIS, dest, dest, (k + 32768) >> 16);
+	emit_tai(as, PPCI_ADDI, dest, left, k);
+	return;
+      }
+    }
+    pi = PPCI_ADD;
+    /* May fail due to spills/restores above, but simplifies the logic. */
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_tab(as, pi, dest, left, right);
+  }
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, PPCI_FMSUB, PPCI_FNMSUB))
+      asm_fparith(as, ir, PPCI_FSUB);
+  } else {
+    PPCIns pi = PPCI_SUBF;
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left, right;
+    if (irref_isk(ir->op1)) {
+      int32_t k = IR(ir->op1)->i;
+      if (checki16(k)) {
+	right = ra_alloc1(as, ir->op2, RSET_GPR);
+	emit_tai(as, PPCI_SUBFIC, dest, right, k);
+	return;
+      }
+    }
+    /* May fail due to spills/restores above, but simplifies the logic. */
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_tab(as, pi, dest, right, left);  /* Subtract right _from_ left. */
+  }
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, PPCI_FMUL);
+  } else {
+    PPCIns pi = PPCI_MULLW;
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    if (irref_isk(ir->op2)) {
+      int32_t k = IR(ir->op2)->i;
+      if (checki16(k)) {
+	emit_tai(as, PPCI_MULLI, dest, left, k);
+	return;
+      }
+    }
+    /* May fail due to spills/restores above, but simplifies the logic. */
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_tab(as, pi, dest, left, right);
+  }
+}
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, PPCI_FNEG);
+  } else {
+    Reg dest, left;
+    PPCIns pi = PPCI_NEG;
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    dest = ra_dest(as, ir, RSET_GPR);
+    left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    emit_tab(as, pi, dest, left, 0);
+  }
+}
+
+static void asm_arithov(ASMState *as, IRIns *ir, PPCIns pi)
+{
+  Reg dest, left, right;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+  }
+  asm_guardcc(as, CC_SO);
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  if (pi == PPCI_SUBFO) { Reg tmp = left; left = right; right = tmp; }
+  emit_tab(as, pi|PPCF_DOT, dest, left, right);
+}
+
+#if LJ_HASFFI
+static void asm_add64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+  PPCIns pi = PPCI_ADDE;
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k == 0)
+      pi = PPCI_ADDZE;
+    else if (k == -1)
+      pi = PPCI_ADDME;
+    else
+      goto needright;
+    right = 0;
+  } else {
+  needright:
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  }
+  emit_tab(as, pi, dest, left, right);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (checki16(k)) {
+      emit_tai(as, PPCI_ADDIC, dest, left, k);
+      return;
+    }
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_tab(as, PPCI_ADDC, dest, left, right);
+}
+
+static void asm_sub64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left, right = ra_alloc1(as, ir->op2, RSET_GPR);
+  PPCIns pi = PPCI_SUBFE;
+  if (irref_isk(ir->op1)) {
+    int32_t k = IR(ir->op1)->i;
+    if (k == 0)
+      pi = PPCI_SUBFZE;
+    else if (k == -1)
+      pi = PPCI_SUBFME;
+    else
+      goto needleft;
+    left = 0;
+  } else {
+  needleft:
+    left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, right));
+  }
+  emit_tab(as, pi, dest, right, left);  /* Subtract right _from_ left. */
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  right = ra_alloc1(as, ir->op2, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    int32_t k = IR(ir->op1)->i;
+    if (checki16(k)) {
+      emit_tai(as, PPCI_SUBFIC, dest, right, k);
+      return;
+    }
+  }
+  left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, right));
+  emit_tab(as, PPCI_SUBFC, dest, right, left);
+}
+
+static void asm_neg64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_tab(as, PPCI_SUBFZE, dest, left, 0);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_tai(as, PPCI_SUBFIC, dest, left, 0);
+}
+#endif
+
+static void asm_bitnot(ASMState *as, IRIns *ir)
+{
+  Reg dest, left, right;
+  PPCIns pi = PPCI_NOR;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    pi |= PPCF_DOT;
+  }
+  dest = ra_dest(as, ir, RSET_GPR);
+  if (mayfuse(as, ir->op1)) {
+    IRIns *irl = IR(ir->op1);
+    if (irl->o == IR_BAND)
+      pi ^= (PPCI_NOR ^ PPCI_NAND);
+    else if (irl->o == IR_BXOR)
+      pi ^= (PPCI_NOR ^ PPCI_EQV);
+    else if (irl->o != IR_BOR)
+      goto nofuse;
+    left = ra_hintalloc(as, irl->op1, dest, RSET_GPR);
+    right = ra_alloc1(as, irl->op2, rset_exclude(RSET_GPR, left));
+  } else {
+nofuse:
+    left = right = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  }
+  emit_asb(as, pi, dest, left, right);
+}
+
+static void asm_bitswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRIns *irx;
+  if (mayfuse(as, ir->op1) && (irx = IR(ir->op1))->o == IR_XLOAD &&
+      ra_noreg(irx->r) && (irt_isint(irx->t) || irt_isu32(irx->t))) {
+    /* Fuse BSWAP with XLOAD to lwbrx. */
+    asm_fusexrefx(as, PPCI_LWBRX, dest, irx->op1, RSET_GPR);
+  } else {
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    Reg tmp = dest;
+    if (tmp == left) {
+      tmp = RID_TMP;
+      emit_mr(as, dest, RID_TMP);
+    }
+    emit_rot(as, PPCI_RLWIMI, tmp, left, 24, 16, 23);
+    emit_rot(as, PPCI_RLWIMI, tmp, left, 24, 0, 7);
+    emit_rotlwi(as, tmp, left, 8);
+  }
+}
+
+static void asm_bitop(ASMState *as, IRIns *ir, PPCIns pi, PPCIns pik)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    Reg tmp = left;
+    if ((checku16(k) || (k & 0xffff) == 0) || (tmp = dest, !as->sectref)) {
+      if (!checku16(k)) {
+	emit_asi(as, pik ^ (PPCI_ORI ^ PPCI_ORIS), dest, tmp, (k >> 16));
+	if ((k & 0xffff) == 0) return;
+      }
+      emit_asi(as, pik, dest, left, k);
+      return;
+    }
+  }
+  /* May fail due to spills/restores above, but simplifies the logic. */
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    pi |= PPCF_DOT;
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_asb(as, pi, dest, left, right);
+}
+
+/* Fuse BAND with contiguous bitmask and a shift to rlwinm. */
+static void asm_fuseandsh(ASMState *as, PPCIns pi, int32_t mask, IRRef ref)
+{
+  IRIns *ir;
+  Reg left;
+  if (mayfuse(as, ref) && (ir = IR(ref), ra_noreg(ir->r)) &&
+      irref_isk(ir->op2) && ir->o >= IR_BSHL && ir->o <= IR_BROR) {
+    int32_t sh = (IR(ir->op2)->i & 31);
+    switch (ir->o) {
+    case IR_BSHL:
+      if ((mask & ((1u<<sh)-1))) goto nofuse;
+      break;
+    case IR_BSHR:
+      if ((mask & ~((~0u)>>sh))) goto nofuse;
+      sh = ((32-sh)&31);
+      break;
+    case IR_BROL:
+      break;
+    default:
+      goto nofuse;
+    }
+    left = ra_alloc1(as, ir->op1, RSET_GPR);
+    *--as->mcp = pi | PPCF_T(left) | PPCF_B(sh);
+    return;
+  }
+nofuse:
+  left = ra_alloc1(as, ref, RSET_GPR);
+  *--as->mcp = pi | PPCF_T(left);
+}
+
+static void asm_bitand(ASMState *as, IRIns *ir)
+{
+  Reg dest, left, right;
+  IRRef lref = ir->op1;
+  PPCIns dot = 0;
+  IRRef op2;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    dot = PPCF_DOT;
+  }
+  dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k) {
+      /* First check for a contiguous bitmask as used by rlwinm. */
+      uint32_t s1 = lj_ffs((uint32_t)k);
+      uint32_t k1 = ((uint32_t)k >> s1);
+      if ((k1 & (k1+1)) == 0) {
+	asm_fuseandsh(as, PPCI_RLWINM|dot | PPCF_A(dest) |
+			  PPCF_MB(31-lj_fls((uint32_t)k)) | PPCF_ME(31-s1),
+			  k, lref);
+	return;
+      }
+      if (~(uint32_t)k) {
+	uint32_t s2 = lj_ffs(~(uint32_t)k);
+	uint32_t k2 = (~(uint32_t)k >> s2);
+	if ((k2 & (k2+1)) == 0) {
+	  asm_fuseandsh(as, PPCI_RLWINM|dot | PPCF_A(dest) |
+			    PPCF_MB(32-s2) | PPCF_ME(30-lj_fls(~(uint32_t)k)),
+			    k, lref);
+	  return;
+	}
+      }
+    }
+    if (checku16(k)) {
+      left = ra_alloc1(as, lref, RSET_GPR);
+      emit_asi(as, PPCI_ANDIDOT, dest, left, k);
+      return;
+    } else if ((k & 0xffff) == 0) {
+      left = ra_alloc1(as, lref, RSET_GPR);
+      emit_asi(as, PPCI_ANDISDOT, dest, left, (k >> 16));
+      return;
+    }
+  }
+  op2 = ir->op2;
+  if (mayfuse(as, op2) && IR(op2)->o == IR_BNOT && ra_noreg(IR(op2)->r)) {
+    dot ^= (PPCI_AND ^ PPCI_ANDC);
+    op2 = IR(op2)->op1;
+  }
+  left = ra_hintalloc(as, lref, dest, RSET_GPR);
+  right = ra_alloc1(as, op2, rset_exclude(RSET_GPR, left));
+  emit_asb(as, PPCI_AND ^ dot, dest, left, right);
+}
+
+static void asm_bitshift(ASMState *as, IRIns *ir, PPCIns pi, PPCIns pik)
+{
+  Reg dest, left;
+  Reg dot = 0;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    dot = PPCF_DOT;
+  }
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    int32_t shift = (IR(ir->op2)->i & 31);
+    if (pik == 0)  /* SLWI */
+      emit_rot(as, PPCI_RLWINM|dot, dest, left, shift, 0, 31-shift);
+    else if (pik == 1)  /* SRWI */
+      emit_rot(as, PPCI_RLWINM|dot, dest, left, (32-shift)&31, shift, 31);
+    else
+      emit_asb(as, pik|dot, dest, left, shift);
+  } else {
+    Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_asb(as, pi|dot, dest, left, right);
+  }
+}
+
+static void asm_min_max(ASMState *as, IRIns *ir, int ismax)
+{
+  if (irt_isnum(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg tmp = dest;
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    if (tmp == left || tmp == right)
+      tmp = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_FPR,
+					dest), left), right));
+    emit_facb(as, PPCI_FSEL, dest, tmp,
+	      ismax ? left : right, ismax ? right : left);
+    emit_fab(as, PPCI_FSUB, tmp, left, right);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg tmp1 = RID_TMP, tmp2 = dest;
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    if (tmp2 == left || tmp2 == right)
+      tmp2 = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_GPR,
+					 dest), left), right));
+    emit_tab(as, PPCI_ADD, dest, tmp2, right);
+    emit_asb(as, ismax ? PPCI_ANDC : PPCI_AND, tmp2, tmp2, tmp1);
+    emit_tab(as, PPCI_SUBFE, tmp1, tmp1, tmp1);
+    emit_tab(as, PPCI_SUBFC, tmp2, tmp2, tmp1);
+    emit_asi(as, PPCI_XORIS, tmp2, right, 0x8000);
+    emit_asi(as, PPCI_XORIS, tmp1, left, 0x8000);
+  }
+}
+
+/* -- Comparisons --------------------------------------------------------- */
+
+#define CC_UNSIGNED	0x08	/* Unsigned integer comparison. */
+#define CC_TWO		0x80	/* Check two flags for FP comparison. */
+
+/* Map of comparisons to flags. ORDER IR. */
+static const uint8_t asm_compmap[IR_ABC+1] = {
+  /* op     int cc                 FP cc */
+  /* LT  */ CC_GE               + (CC_GE<<4),
+  /* GE  */ CC_LT               + (CC_LE<<4) + CC_TWO,
+  /* LE  */ CC_GT               + (CC_GE<<4) + CC_TWO,
+  /* GT  */ CC_LE               + (CC_LE<<4),
+  /* ULT */ CC_GE + CC_UNSIGNED + (CC_GT<<4) + CC_TWO,
+  /* UGE */ CC_LT + CC_UNSIGNED + (CC_LT<<4),
+  /* ULE */ CC_GT + CC_UNSIGNED + (CC_GT<<4),
+  /* UGT */ CC_LE + CC_UNSIGNED + (CC_LT<<4) + CC_TWO,
+  /* EQ  */ CC_NE               + (CC_NE<<4),
+  /* NE  */ CC_EQ               + (CC_EQ<<4),
+  /* ABC */ CC_LE + CC_UNSIGNED + (CC_LT<<4) + CC_TWO  /* Same as UGT. */
+};
+
+static void asm_intcomp_(ASMState *as, IRRef lref, IRRef rref, Reg cr, PPCCC cc)
+{
+  Reg right, left = ra_alloc1(as, lref, RSET_GPR);
+  if (irref_isk(rref)) {
+    int32_t k = IR(rref)->i;
+    if ((cc & CC_UNSIGNED) == 0) {  /* Signed comparison with constant. */
+      if (checki16(k)) {
+	emit_tai(as, PPCI_CMPWI, cr, left, k);
+	/* Signed comparison with zero and referencing previous ins? */
+	if (k == 0 && lref == as->curins-1)
+	  as->flagmcp = as->mcp;  /* Allow elimination of the compare. */
+	return;
+      } else if ((cc & 3) == (CC_EQ & 3)) {  /* Use CMPLWI for EQ or NE. */
+	if (checku16(k)) {
+	  emit_tai(as, PPCI_CMPLWI, cr, left, k);
+	  return;
+	} else if (!as->sectref && ra_noreg(IR(rref)->r)) {
+	  emit_tai(as, PPCI_CMPLWI, cr, RID_TMP, k);
+	  emit_asi(as, PPCI_XORIS, RID_TMP, left, (k >> 16));
+	  return;
+	}
+      }
+    } else {  /* Unsigned comparison with constant. */
+      if (checku16(k)) {
+	emit_tai(as, PPCI_CMPLWI, cr, left, k);
+	return;
+      }
+    }
+  }
+  right = ra_alloc1(as, rref, rset_exclude(RSET_GPR, left));
+  emit_tab(as, (cc & CC_UNSIGNED) ? PPCI_CMPLW : PPCI_CMPW, cr, left, right);
+}
+
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+  PPCCC cc = asm_compmap[ir->o];
+  if (irt_isnum(ir->t)) {
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    asm_guardcc(as, (cc >> 4));
+    if ((cc & CC_TWO))
+      emit_tab(as, PPCI_CROR, ((cc>>4)&3), ((cc>>4)&3), (CC_EQ&3));
+    emit_fab(as, PPCI_FCMPU, 0, left, right);
+  } else {
+    IRRef lref = ir->op1, rref = ir->op2;
+    if (irref_isk(lref) && !irref_isk(rref)) {
+      /* Swap constants to the right (only for ABC). */
+      IRRef tmp = lref; lref = rref; rref = tmp;
+      if ((cc & 2) == 0) cc ^= 1;  /* LT <-> GT, LE <-> GE */
+    }
+    asm_guardcc(as, cc);
+    asm_intcomp_(as, lref, rref, 0, cc);
+  }
+}
+
+#if LJ_HASFFI
+/* 64 bit integer comparisons. */
+static void asm_comp64(ASMState *as, IRIns *ir)
+{
+  PPCCC cc = asm_compmap[(ir-1)->o];
+  if ((cc&3) == (CC_EQ&3)) {
+    asm_guardcc(as, cc);
+    emit_tab(as, (cc&4) ? PPCI_CRAND : PPCI_CROR,
+	     (CC_EQ&3), (CC_EQ&3), 4+(CC_EQ&3));
+  } else {
+    asm_guardcc(as, CC_EQ);
+    emit_tab(as, PPCI_CROR, (CC_EQ&3), (CC_EQ&3), ((cc^~(cc>>2))&1));
+    emit_tab(as, (cc&4) ? PPCI_CRAND : PPCI_CRANDC,
+	     (CC_EQ&3), (CC_EQ&3), 4+(cc&3));
+  }
+  /* Loword comparison sets cr1 and is unsigned, except for equality. */
+  asm_intcomp_(as, (ir-1)->op1, (ir-1)->op2, 4,
+	       cc | ((cc&3) == (CC_EQ&3) ? 0 : CC_UNSIGNED));
+  /* Hiword comparison sets cr0. */
+  asm_intcomp_(as, ir->op1, ir->op2, 0, cc);
+  as->flagmcp = NULL;  /* Doesn't work here. */
+}
+#endif
+
+/* -- Support for 64 bit ops in 32 bit mode ------------------------------- */
+
+/* Hiword op of a split 64 bit op. Previous op must be the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+#if LJ_HASFFI
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+  if ((ir-1)->o == IR_CONV) {  /* Conversions to/from 64 bit. */
+    as->curins--;  /* Always skip the CONV. */
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+  } else if ((ir-1)->o <= IR_NE) {  /* 64 bit integer comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+    asm_comp64(as, ir);
+    return;
+  } else if ((ir-1)->o == IR_XSTORE) {
+    as->curins--;  /* Handle both stores here. */
+    if ((ir-1)->r != RID_SINK) {
+      asm_xstore(as, ir, 0);
+      asm_xstore(as, ir-1, 4);
+    }
+    return;
+  }
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+  case IR_ADD: as->curins--; asm_add64(as, ir); break;
+  case IR_SUB: as->curins--; asm_sub64(as, ir); break;
+  case IR_NEG: as->curins--; asm_neg64(as, ir); break;
+  case IR_CALLN:
+  case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+  default: lua_assert(0); break;
+  }
+#else
+  UNUSED(as); UNUSED(ir); lua_assert(0);  /* Unused without FFI. */
+#endif
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  /* Try to get an unused temp. register, otherwise spill/restore RID_RET*. */
+  Reg tmp, pbase = irp ? (ra_hasreg(irp->r) ? irp->r : RID_TMP) : RID_BASE;
+  rset_clear(allow, pbase);
+  tmp = allow ? rset_pickbot(allow) :
+		(pbase == RID_RETHI ? RID_RETLO : RID_RETHI);
+  emit_condbranch(as, PPCI_BC, CC_LT, asm_exitstub_addr(as, exitno));
+  if (allow == RSET_EMPTY)  /* Restore temp. register. */
+    emit_tai(as, PPCI_LWZ, tmp, RID_SP, SPOFS_TMPW);
+  else
+    ra_modified(as, tmp);
+  emit_ai(as, PPCI_CMPLWI, RID_TMP, (int32_t)(8*topslot));
+  emit_tab(as, PPCI_SUBF, RID_TMP, pbase, tmp);
+  emit_tai(as, PPCI_LWZ, tmp, tmp, offsetof(lua_State, maxstack));
+  if (pbase == RID_TMP)
+    emit_getgl(as, RID_TMP, jit_base);
+  emit_getgl(as, tmp, jit_L);
+  if (allow == RSET_EMPTY)  /* Spill temp. register. */
+    emit_tai(as, PPCI_STW, tmp, RID_SP, SPOFS_TMPW);
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1];
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_fai(as, PPCI_STFD, src, RID_BASE, ofs);
+    } else {
+      Reg type;
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      lua_assert(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t));
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, allow);
+	rset_clear(allow, src);
+	emit_tai(as, PPCI_STW, src, RID_BASE, ofs+4);
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s == 0) continue;  /* Do not overwrite link to previous frame. */
+	type = ra_allock(as, (int32_t)(*flinks--), allow);
+      } else {
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      }
+      emit_tai(as, PPCI_STW, type, RID_BASE, ofs);
+    }
+    checkmclim(as);
+  }
+  lua_assert(map + nent == flinks);
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcc(as, CC_NE);  /* Assumes asm_snap_prep() already done. */
+  emit_ai(as, PPCI_CMPWI, RID_RET, 0);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  emit_tai(as, PPCI_ADDI, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  tmp = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_condbranch(as, PPCI_BC|PPCF_Y, CC_LT, l_end);
+  emit_ab(as, PPCI_CMPLW, RID_TMP, tmp);
+  emit_getgl(as, tmp, gc.threshold);
+  emit_getgl(as, RID_TMP, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    /* asm_guardcc already inverted the cond branch and patched the final b. */
+    p[-2] = (p[-2] & (0xffff0000u & ~PPCF_Y)) | (((target-p+2) & 0x3fffu) << 2);
+  } else {
+    p[-1] = PPCI_B|(((target-p+1)&0x00ffffffu)<<2);
+  }
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (r != RID_BASE)
+      emit_mr(as, r, RID_BASE);
+  }
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (irp->r == r) {
+      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+    } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
+      rset_clear(allow, irp->r);
+      emit_mr(as, r, irp->r);  /* Move from coalesced parent reg. */
+    } else {
+      emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
+    }
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *p = as->mctop;
+  MCode *target;
+  int32_t spadj = as->T->spadjust;
+  if (spadj == 0) {
+    *--p = PPCI_NOP;
+    *--p = PPCI_NOP;
+    as->mctop = p;
+  } else {
+    /* Patch stack adjustment. */
+    lua_assert(checki16(CFRAME_SIZE+spadj));
+    p[-3] = PPCI_ADDI | PPCF_T(RID_TMP) | PPCF_A(RID_SP) | (CFRAME_SIZE+spadj);
+    p[-2] = PPCI_STWU | PPCF_T(RID_TMP) | PPCF_A(RID_SP) | spadj;
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  p[-1] = PPCI_B|(((target-p+1)&0x00ffffffu)<<2);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop - 1;  /* Leave room for exit branch. */
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    as->mcp = p-2;  /* Leave room for stack pointer adjustment. */
+    as->invmcp = NULL;
+  }
+}
+
+/* -- Instruction dispatch ------------------------------------------------ */
+
+/* Assemble a single instruction. */
+static void asm_ir(ASMState *as, IRIns *ir)
+{
+  switch ((IROp)ir->o) {
+  /* Miscellaneous ops. */
+  case IR_LOOP: asm_loop(as); break;
+  case IR_NOP: case IR_XBAR: lua_assert(!ra_used(ir)); break;
+  case IR_USE:
+    ra_alloc1(as, ir->op1, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR); break;
+  case IR_PHI: asm_phi(as, ir); break;
+  case IR_HIOP: asm_hiop(as, ir); break;
+  case IR_GCSTEP: asm_gcstep(as, ir); break;
+
+  /* Guarded assertions. */
+  case IR_EQ: case IR_NE:
+    if ((ir-1)->o == IR_HREF && ir->op1 == as->curins-1) {
+      as->curins--;
+      asm_href(as, ir-1, (IROp)ir->o);
+      break;
+    }
+    /* fallthrough */
+  case IR_LT: case IR_GE: case IR_LE: case IR_GT:
+  case IR_ULT: case IR_UGE: case IR_ULE: case IR_UGT:
+  case IR_ABC:
+    asm_comp(as, ir);
+    break;
+
+  case IR_RETF: asm_retf(as, ir); break;
+
+  /* Bit ops. */
+  case IR_BNOT: asm_bitnot(as, ir); break;
+  case IR_BSWAP: asm_bitswap(as, ir); break;
+
+  case IR_BAND: asm_bitand(as, ir); break;
+  case IR_BOR:  asm_bitop(as, ir, PPCI_OR, PPCI_ORI); break;
+  case IR_BXOR: asm_bitop(as, ir, PPCI_XOR, PPCI_XORI); break;
+
+  case IR_BSHL: asm_bitshift(as, ir, PPCI_SLW, 0); break;
+  case IR_BSHR: asm_bitshift(as, ir, PPCI_SRW, 1); break;
+  case IR_BSAR: asm_bitshift(as, ir, PPCI_SRAW, PPCI_SRAWI); break;
+  case IR_BROL: asm_bitshift(as, ir, PPCI_RLWNM|PPCF_MB(0)|PPCF_ME(31),
+			     PPCI_RLWINM|PPCF_MB(0)|PPCF_ME(31)); break;
+  case IR_BROR: lua_assert(0); break;
+
+  /* Arithmetic ops. */
+  case IR_ADD: asm_add(as, ir); break;
+  case IR_SUB: asm_sub(as, ir); break;
+  case IR_MUL: asm_mul(as, ir); break;
+  case IR_DIV: asm_fparith(as, ir, PPCI_FDIV); break;
+  case IR_MOD: asm_callid(as, ir, IRCALL_lj_vm_modi); break;
+  case IR_POW: asm_callid(as, ir, IRCALL_lj_vm_powi); break;
+  case IR_NEG: asm_neg(as, ir); break;
+
+  case IR_ABS: asm_fpunary(as, ir, PPCI_FABS); break;
+  case IR_ATAN2: asm_callid(as, ir, IRCALL_atan2); break;
+  case IR_LDEXP: asm_callid(as, ir, IRCALL_ldexp); break;
+  case IR_MIN: asm_min_max(as, ir, 0); break;
+  case IR_MAX: asm_min_max(as, ir, 1); break;
+  case IR_FPMATH:
+    if (ir->op2 == IRFPM_EXP2 && asm_fpjoin_pow(as, ir))
+      break;
+    if (ir->op2 == IRFPM_SQRT && (as->flags & JIT_F_SQRT))
+      asm_fpunary(as, ir, PPCI_FSQRT);
+    else
+      asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2);
+    break;
+
+  /* Overflow-checking arithmetic ops. */
+  case IR_ADDOV: asm_arithov(as, ir, PPCI_ADDO); break;
+  case IR_SUBOV: asm_arithov(as, ir, PPCI_SUBFO); break;
+  case IR_MULOV: asm_arithov(as, ir, PPCI_MULLWO); break;
+
+  /* Memory references. */
+  case IR_AREF: asm_aref(as, ir); break;
+  case IR_HREF: asm_href(as, ir, 0); break;
+  case IR_HREFK: asm_hrefk(as, ir); break;
+  case IR_NEWREF: asm_newref(as, ir); break;
+  case IR_UREFO: case IR_UREFC: asm_uref(as, ir); break;
+  case IR_FREF: asm_fref(as, ir); break;
+  case IR_STRREF: asm_strref(as, ir); break;
+
+  /* Loads and stores. */
+  case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+    asm_ahuvload(as, ir);
+    break;
+  case IR_FLOAD: asm_fload(as, ir); break;
+  case IR_XLOAD: asm_xload(as, ir); break;
+  case IR_SLOAD: asm_sload(as, ir); break;
+
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: asm_ahustore(as, ir); break;
+  case IR_FSTORE: asm_fstore(as, ir); break;
+  case IR_XSTORE: asm_xstore(as, ir, 0); break;
+
+  /* Allocations. */
+  case IR_SNEW: case IR_XSNEW: asm_snew(as, ir); break;
+  case IR_TNEW: asm_tnew(as, ir); break;
+  case IR_TDUP: asm_tdup(as, ir); break;
+  case IR_CNEW: case IR_CNEWI: asm_cnew(as, ir); break;
+
+  /* Write barriers. */
+  case IR_TBAR: asm_tbar(as, ir); break;
+  case IR_OBAR: asm_obar(as, ir); break;
+
+  /* Type conversions. */
+  case IR_CONV: asm_conv(as, ir); break;
+  case IR_TOBIT: asm_tobit(as, ir); break;
+  case IR_TOSTR: asm_tostr(as, ir); break;
+  case IR_STRTO: asm_strto(as, ir); break;
+
+  /* Calls. */
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: asm_call(as, ir); break;
+  case IR_CALLXS: asm_callx(as, ir); break;
+  case IR_CARG: break;
+
+  default:
+    setintV(&as->J->errinfo, ir->o);
+    lj_trace_err_info(as->J, LJ_TRERR_NYIIR);
+    break;
+  }
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = (int)CCI_NARGS(ci);
+  int nslots = 2, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++)
+    if (args[i] && irt_isfp(IR(args[i])->t)) {
+      if (nfpr > 0) nfpr--; else nslots = (nslots+3) & ~1;
+    } else {
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return irt_isfp(ir->t) ? REGSP_HINT(RID_FPRET) : REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  asm_exitstub_setup(as, as->T->nsnap + (as->parent ? 1 : 0));
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *px = exitstub_trace_addr(T, exitno);
+  MCode *cstart = NULL;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  int clearso = 0;
+  for (; p < pe; p++) {
+    /* Look for exitstub branch, try to replace with branch to target. */
+    uint32_t ins = *p;
+    if ((ins & 0xfc000000u) == 0x40000000u &&
+	((ins ^ ((char *)px-(char *)p)) & 0xffffu) == 0) {
+      ptrdiff_t delta = (char *)target - (char *)p;
+      if (((ins >> 16) & 3) == (CC_SO&3)) {
+	clearso = sizeof(MCode);
+	delta -= sizeof(MCode);
+      }
+      /* Many, but not all short-range branches can be patched directly. */
+      if (((delta + 0x8000) >> 16) == 0) {
+	*p = (ins & 0xffdf0000u) | ((uint32_t)delta & 0xffffu) |
+	     ((delta & 0x8000) * (PPCF_Y/0x8000));
+	if (!cstart) cstart = p;
+      }
+    } else if ((ins & 0xfc000000u) == PPCI_B &&
+	       ((ins ^ ((char *)px-(char *)p)) & 0x03ffffffu) == 0) {
+      ptrdiff_t delta = (char *)target - (char *)p;
+      lua_assert(((delta + 0x02000000) >> 26) == 0);
+      *p = PPCI_B | ((uint32_t)delta & 0x03ffffffu);
+      if (!cstart) cstart = p;
+    }
+  }
+  {  /* Always patch long-range branch in exit stub itself. */
+    ptrdiff_t delta = (char *)target - (char *)px - clearso;
+    lua_assert(((delta + 0x02000000) >> 26) == 0);
+    *px = PPCI_B | ((uint32_t)delta & 0x03ffffffu);
+  }
+  if (!cstart) cstart = px;
+  lj_mcode_sync(cstart, px+1);
+  if (clearso) {  /* Extend the current trace. Ugly workaround. */
+    MCode *pp = J->cur.mcode;
+    J->cur.szmcode += sizeof(MCode);
+    *--pp = PPCI_MCRXR;  /* Clear SO flag. */
+    J->cur.mcode = pp;
+    lj_mcode_sync(pp, pp+1);
+  }
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/lib/luajit/src/lj_asm_x86.h b/lib/luajit/src/lj_asm_x86.h
new file mode 100644
index 00000000..fda911e5
--- /dev/null
+++ b/lib/luajit/src/lj_asm_x86.h
@@ -0,0 +1,2794 @@
+/*
+** x86/x64 IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Generate an exit stub group at the bottom of the reserved MCode memory. */
+static MCode *asm_exitstub_gen(ASMState *as, ExitNo group)
+{
+  ExitNo i, groupofs = (group*EXITSTUBS_PER_GROUP) & 0xff;
+  MCode *mxp = as->mcbot;
+  MCode *mxpstart = mxp;
+  if (mxp + (2+2)*EXITSTUBS_PER_GROUP+8+5 >= as->mctop)
+    asm_mclimit(as);
+  /* Push low byte of exitno for each exit stub. */
+  *mxp++ = XI_PUSHi8; *mxp++ = (MCode)groupofs;
+  for (i = 1; i < EXITSTUBS_PER_GROUP; i++) {
+    *mxp++ = XI_JMPs; *mxp++ = (MCode)((2+2)*(EXITSTUBS_PER_GROUP - i) - 2);
+    *mxp++ = XI_PUSHi8; *mxp++ = (MCode)(groupofs + i);
+  }
+  /* Push the high byte of the exitno for each exit stub group. */
+  *mxp++ = XI_PUSHi8; *mxp++ = (MCode)((group*EXITSTUBS_PER_GROUP)>>8);
+  /* Store DISPATCH at original stack slot 0. Account for the two push ops. */
+  *mxp++ = XI_MOVmi;
+  *mxp++ = MODRM(XM_OFS8, 0, RID_ESP);
+  *mxp++ = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+  *mxp++ = 2*sizeof(void *);
+  *(int32_t *)mxp = ptr2addr(J2GG(as->J)->dispatch); mxp += 4;
+  /* Jump to exit handler which fills in the ExitState. */
+  *mxp++ = XI_JMP; mxp += 4;
+  *((int32_t *)(mxp-4)) = jmprel(mxp, (MCode *)(void *)lj_vm_exit_handler);
+  /* Commit the code for this group (even if assembly fails later on). */
+  lj_mcode_commitbot(as->J, mxp);
+  as->mcbot = mxp;
+  as->mclim = as->mcbot + MCLIM_REDZONE;
+  return mxpstart;
+}
+
+/* Setup all needed exit stubs. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  if (nexits >= EXITSTUBS_PER_GROUP*LJ_MAX_EXITSTUBGR)
+    lj_trace_err(as->J, LJ_TRERR_SNAPOV);
+  for (i = 0; i < (nexits+EXITSTUBS_PER_GROUP-1)/EXITSTUBS_PER_GROUP; i++)
+    if (as->J->exitstubgroup[i] == NULL)
+      as->J->exitstubgroup[i] = asm_exitstub_gen(as, i);
+}
+
+/* Emit conditional branch to exit for guard.
+** It's important to emit this *after* all registers have been allocated,
+** because rematerializations may invalidate the flags.
+*/
+static void asm_guardcc(ASMState *as, int cc)
+{
+  MCode *target = exitstub_addr(as->J, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *(int32_t *)(p+1) = jmprel(p+5, target);
+    target = p;
+    cc ^= 1;
+    if (as->realign) {
+      emit_sjcc(as, cc, target);
+      return;
+    }
+  }
+  emit_jcc(as, cc, target);
+}
+
+/* -- Memory operand fusion ----------------------------------------------- */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if a reference is a signed 32 bit constant. */
+static int asm_isk32(ASMState *as, IRRef ref, int32_t *k)
+{
+  if (irref_isk(ref)) {
+    IRIns *ir = IR(ref);
+    if (ir->o != IR_KINT64) {
+      *k = ir->i;
+      return 1;
+    } else if (checki32((int64_t)ir_kint64(ir)->u64)) {
+      *k = (int32_t)ir_kint64(ir)->u64;
+      return 1;
+    }
+  }
+  return 0;
+}
+
+/* Check if there's no conflicting instruction between curins and ref.
+** Also avoid fusing loads if there are multiple references.
+*/
+static int noconflict(ASMState *as, IRRef ref, IROp conflict, int noload)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref) {
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+    else if (!noload && (ir[i].op1 == ref || ir[i].op2 == ref))
+      return 0;
+  }
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse array base into memory operand. */
+static IRRef asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *irb = IR(ref);
+  as->mrm.ofs = 0;
+  if (irb->o == IR_FLOAD) {
+    IRIns *ira = IR(irb->op1);
+    lua_assert(irb->op2 == IRFL_TAB_ARRAY);
+    /* We can avoid the FLOAD of t->array for colocated arrays. */
+    if (ira->o == IR_TNEW && ira->op1 <= LJ_MAX_COLOSIZE &&
+	!neverfuse(as) && noconflict(as, irb->op1, IR_NEWREF, 1)) {
+      as->mrm.ofs = (int32_t)sizeof(GCtab);  /* Ofs to colocated array. */
+      return irb->op1;  /* Table obj. */
+    }
+  } else if (irb->o == IR_ADD && irref_isk(irb->op2)) {
+    /* Fuse base offset (vararg load). */
+    as->mrm.ofs = IR(irb->op2)->i;
+    return irb->op1;
+  }
+  return ref;  /* Otherwise use the given array base. */
+}
+
+/* Fuse array reference into memory operand. */
+static void asm_fusearef(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irx;
+  lua_assert(ir->o == IR_AREF);
+  as->mrm.base = (uint8_t)ra_alloc1(as, asm_fuseabase(as, ir->op1), allow);
+  irx = IR(ir->op2);
+  if (irref_isk(ir->op2)) {
+    as->mrm.ofs += 8*irx->i;
+    as->mrm.idx = RID_NONE;
+  } else {
+    rset_clear(allow, as->mrm.base);
+    as->mrm.scale = XM_SCALE8;
+    /* Fuse a constant ADD (e.g. t[i+1]) into the offset.
+    ** Doesn't help much without ABCelim, but reduces register pressure.
+    */
+    if (!LJ_64 &&  /* Has bad effects with negative index on x64. */
+	mayfuse(as, ir->op2) && ra_noreg(irx->r) &&
+	irx->o == IR_ADD && irref_isk(irx->op2)) {
+      as->mrm.ofs += 8*IR(irx->op2)->i;
+      as->mrm.idx = (uint8_t)ra_alloc1(as, irx->op1, allow);
+    } else {
+      as->mrm.idx = (uint8_t)ra_alloc1(as, ir->op2, allow);
+    }
+  }
+}
+
+/* Fuse array/hash/upvalue reference into memory operand.
+** Caveat: this may allocate GPRs for the base/idx registers. Be sure to
+** pass the final allow mask, excluding any GPRs used for other inputs.
+** In particular: 2-operand GPR instructions need to call ra_dest() first!
+*/
+static void asm_fuseahuref(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    switch ((IROp)ir->o) {
+    case IR_AREF:
+      if (mayfuse(as, ref)) {
+	asm_fusearef(as, ir, allow);
+	return;
+      }
+      break;
+    case IR_HREFK:
+      if (mayfuse(as, ref)) {
+	as->mrm.base = (uint8_t)ra_alloc1(as, ir->op1, allow);
+	as->mrm.ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	as->mrm.idx = RID_NONE;
+	return;
+      }
+      break;
+    case IR_UREFC:
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	GCupval *uv = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv;
+	as->mrm.ofs = ptr2addr(&uv->tv);
+	as->mrm.base = as->mrm.idx = RID_NONE;
+	return;
+      }
+      break;
+    default:
+      lua_assert(ir->o == IR_HREF || ir->o == IR_NEWREF || ir->o == IR_UREFO ||
+		 ir->o == IR_KKPTR);
+      break;
+    }
+  }
+  as->mrm.base = (uint8_t)ra_alloc1(as, ref, allow);
+  as->mrm.ofs = 0;
+  as->mrm.idx = RID_NONE;
+}
+
+/* Fuse FLOAD/FREF reference into memory operand. */
+static void asm_fusefref(ASMState *as, IRIns *ir, RegSet allow)
+{
+  lua_assert(ir->o == IR_FLOAD || ir->o == IR_FREF);
+  as->mrm.ofs = field_ofs[ir->op2];
+  as->mrm.idx = RID_NONE;
+  if (irref_isk(ir->op1)) {
+    as->mrm.ofs += IR(ir->op1)->i;
+    as->mrm.base = RID_NONE;
+  } else {
+    as->mrm.base = (uint8_t)ra_alloc1(as, ir->op1, allow);
+  }
+}
+
+/* Fuse string reference into memory operand. */
+static void asm_fusestrref(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irr;
+  lua_assert(ir->o == IR_STRREF);
+  as->mrm.base = as->mrm.idx = RID_NONE;
+  as->mrm.scale = XM_SCALE1;
+  as->mrm.ofs = sizeof(GCstr);
+  if (irref_isk(ir->op1)) {
+    as->mrm.ofs += IR(ir->op1)->i;
+  } else {
+    Reg r = ra_alloc1(as, ir->op1, allow);
+    rset_clear(allow, r);
+    as->mrm.base = (uint8_t)r;
+  }
+  irr = IR(ir->op2);
+  if (irref_isk(ir->op2)) {
+    as->mrm.ofs += irr->i;
+  } else {
+    Reg r;
+    /* Fuse a constant add into the offset, e.g. string.sub(s, i+10). */
+    if (!LJ_64 &&  /* Has bad effects with negative index on x64. */
+	mayfuse(as, ir->op2) && irr->o == IR_ADD && irref_isk(irr->op2)) {
+      as->mrm.ofs += IR(irr->op2)->i;
+      r = ra_alloc1(as, irr->op1, allow);
+    } else {
+      r = ra_alloc1(as, ir->op2, allow);
+    }
+    if (as->mrm.base == RID_NONE)
+      as->mrm.base = (uint8_t)r;
+    else
+      as->mrm.idx = (uint8_t)r;
+  }
+}
+
+static void asm_fusexref(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  as->mrm.idx = RID_NONE;
+  if (ir->o == IR_KPTR || ir->o == IR_KKPTR) {
+    as->mrm.ofs = ir->i;
+    as->mrm.base = RID_NONE;
+  } else if (ir->o == IR_STRREF) {
+    asm_fusestrref(as, ir, allow);
+  } else {
+    as->mrm.ofs = 0;
+    if (canfuse(as, ir) && ir->o == IR_ADD && ra_noreg(ir->r)) {
+      /* Gather (base+idx*sz)+ofs as emitted by cdata ptr/array indexing. */
+      IRIns *irx;
+      IRRef idx;
+      Reg r;
+      if (asm_isk32(as, ir->op2, &as->mrm.ofs)) {  /* Recognize x+ofs. */
+	ref = ir->op1;
+	ir = IR(ref);
+	if (!(ir->o == IR_ADD && canfuse(as, ir) && ra_noreg(ir->r)))
+	  goto noadd;
+      }
+      as->mrm.scale = XM_SCALE1;
+      idx = ir->op1;
+      ref = ir->op2;
+      irx = IR(idx);
+      if (!(irx->o == IR_BSHL || irx->o == IR_ADD)) {  /* Try other operand. */
+	idx = ir->op2;
+	ref = ir->op1;
+	irx = IR(idx);
+      }
+      if (canfuse(as, irx) && ra_noreg(irx->r)) {
+	if (irx->o == IR_BSHL && irref_isk(irx->op2) && IR(irx->op2)->i <= 3) {
+	  /* Recognize idx<<b with b = 0-3, corresponding to sz = (1),2,4,8. */
+	  idx = irx->op1;
+	  as->mrm.scale = (uint8_t)(IR(irx->op2)->i << 6);
+	} else if (irx->o == IR_ADD && irx->op1 == irx->op2) {
+	  /* FOLD does idx*2 ==> idx<<1 ==> idx+idx. */
+	  idx = irx->op1;
+	  as->mrm.scale = XM_SCALE2;
+	}
+      }
+      r = ra_alloc1(as, idx, allow);
+      rset_clear(allow, r);
+      as->mrm.idx = (uint8_t)r;
+    }
+  noadd:
+    as->mrm.base = (uint8_t)ra_alloc1(as, ref, allow);
+  }
+}
+
+/* Fuse load into memory operand. */
+static Reg asm_fuseload(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_hasreg(ir->r)) {
+    if (allow != RSET_EMPTY) {  /* Fast path. */
+      ra_noweak(as, ir->r);
+      return ir->r;
+    }
+  fusespill:
+    /* Force a spill if only memory operands are allowed (asm_x87load). */
+    as->mrm.base = RID_ESP;
+    as->mrm.ofs = ra_spill(as, ir);
+    as->mrm.idx = RID_NONE;
+    return RID_MRM;
+  }
+  if (ir->o == IR_KNUM) {
+    RegSet avail = as->freeset & ~as->modset & RSET_FPR;
+    lua_assert(allow != RSET_EMPTY);
+    if (!(avail & (avail-1))) {  /* Fuse if less than two regs available. */
+      as->mrm.ofs = ptr2addr(ir_knum(ir));
+      as->mrm.base = as->mrm.idx = RID_NONE;
+      return RID_MRM;
+    }
+  } else if (mayfuse(as, ref)) {
+    RegSet xallow = (allow & RSET_GPR) ? allow : RSET_GPR;
+    if (ir->o == IR_SLOAD) {
+      if (!(ir->op2 & (IRSLOAD_PARENT|IRSLOAD_CONVERT)) &&
+	  noconflict(as, ref, IR_RETF, 0)) {
+	as->mrm.base = (uint8_t)ra_alloc1(as, REF_BASE, xallow);
+	as->mrm.ofs = 8*((int32_t)ir->op1-1) + ((ir->op2&IRSLOAD_FRAME)?4:0);
+	as->mrm.idx = RID_NONE;
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_FLOAD) {
+      /* Generic fusion is only ok for 32 bit operand (but see asm_comp). */
+      if ((irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t)) &&
+	  noconflict(as, ref, IR_FSTORE, 0)) {
+	asm_fusefref(as, ir, xallow);
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_ALOAD || ir->o == IR_HLOAD || ir->o == IR_ULOAD) {
+      if (noconflict(as, ref, ir->o + IRDELTA_L2S, 0)) {
+	asm_fuseahuref(as, ir->op1, xallow);
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_XLOAD) {
+      /* Generic fusion is not ok for 8/16 bit operands (but see asm_comp).
+      ** Fusing unaligned memory operands is ok on x86 (except for SIMD types).
+      */
+      if ((!irt_typerange(ir->t, IRT_I8, IRT_U16)) &&
+	  noconflict(as, ref, IR_XSTORE, 0)) {
+	asm_fusexref(as, ir->op1, xallow);
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_VLOAD) {
+      asm_fuseahuref(as, ir->op1, xallow);
+      return RID_MRM;
+    }
+  }
+  if (!(as->freeset & allow) &&
+      (allow == RSET_EMPTY || ra_hasspill(ir->s) || iscrossref(as, ref)))
+    goto fusespill;
+  return ra_allocref(as, ref, allow);
+}
+
+#if LJ_64
+/* Don't fuse a 32 bit load into a 64 bit operation. */
+static Reg asm_fuseloadm(ASMState *as, IRRef ref, RegSet allow, int is64)
+{
+  if (is64 && !irt_is64(IR(ref)->t))
+    return ra_alloc1(as, ref, allow);
+  return asm_fuseload(as, ref, allow);
+}
+#else
+#define asm_fuseloadm(as, ref, allow, is64)  asm_fuseload(as, (ref), (allow))
+#endif
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Count the required number of stack slots for a call. */
+static int asm_count_call_slots(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t i, nargs = CCI_NARGS(ci);
+  int nslots = 0;
+#if LJ_64
+  if (LJ_ABI_WIN) {
+    nslots = (int)(nargs*2);  /* Only matters for more than four args. */
+  } else {
+    int ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+    for (i = 0; i < nargs; i++)
+      if (args[i] && irt_isfp(IR(args[i])->t)) {
+	if (nfpr > 0) nfpr--; else nslots += 2;
+      } else {
+	if (ngpr > 0) ngpr--; else nslots += 2;
+      }
+  }
+#else
+  int ngpr = 0;
+  if ((ci->flags & CCI_CC_MASK) == CCI_CC_FASTCALL)
+    ngpr = 2;
+  else if ((ci->flags & CCI_CC_MASK) == CCI_CC_THISCALL)
+    ngpr = 1;
+  for (i = 0; i < nargs; i++)
+    if (args[i] && irt_isfp(IR(args[i])->t)) {
+      nslots += irt_isnum(IR(args[i])->t) ? 2 : 1;
+    } else {
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+#endif
+  return nslots;
+}
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_NARGS(ci);
+  int32_t ofs = STACKARG_OFS;
+#if LJ_64
+  uint32_t gprs = REGARG_GPRS;
+  Reg fpr = REGARG_FIRSTFPR;
+#if !LJ_ABI_WIN
+  MCode *patchnfpr = NULL;
+#endif
+#else
+  uint32_t gprs = 0;
+  if ((ci->flags & CCI_CC_MASK) != CCI_CC_CDECL) {
+    if ((ci->flags & CCI_CC_MASK) == CCI_CC_THISCALL)
+      gprs = (REGARG_GPRS & 31);
+    else if ((ci->flags & CCI_CC_MASK) == CCI_CC_FASTCALL)
+      gprs = REGARG_GPRS;
+  }
+#endif
+  if ((void *)ci->func)
+    emit_call(as, ci->func);
+#if LJ_64
+  if ((ci->flags & CCI_VARARG)) {  /* Special handling for vararg calls. */
+#if LJ_ABI_WIN
+    for (n = 0; n < 4 && n < nargs; n++) {
+      IRIns *ir = IR(args[n]);
+      if (irt_isfp(ir->t))  /* Duplicate FPRs in GPRs. */
+	emit_rr(as, XO_MOVDto, (irt_isnum(ir->t) ? REX_64 : 0) | (fpr+n),
+		((gprs >> (n*5)) & 31));  /* Either MOVD or MOVQ. */
+    }
+#else
+    patchnfpr = --as->mcp;  /* Indicate number of used FPRs in register al. */
+    *--as->mcp = XI_MOVrib | RID_EAX;
+#endif
+  }
+#endif
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    IRIns *ir = IR(ref);
+    Reg r;
+#if LJ_64 && LJ_ABI_WIN
+    /* Windows/x64 argument registers are strictly positional. */
+    r = irt_isfp(ir->t) ? (fpr <= REGARG_LASTFPR ? fpr : 0) : (gprs & 31);
+    fpr++; gprs >>= 5;
+#elif LJ_64
+    /* POSIX/x64 argument registers are used in order of appearance. */
+    if (irt_isfp(ir->t)) {
+      r = fpr <= REGARG_LASTFPR ? fpr++ : 0;
+    } else {
+      r = gprs & 31; gprs >>= 5;
+    }
+#else
+    if (ref && irt_isfp(ir->t)) {
+      r = 0;
+    } else {
+      r = gprs & 31; gprs >>= 5;
+      if (!ref) continue;
+    }
+#endif
+    if (r) {  /* Argument is in a register. */
+      if (r < RID_MAX_GPR && ref < ASMREF_TMP1) {
+#if LJ_64
+	if (ir->o == IR_KINT64)
+	  emit_loadu64(as, r, ir_kint64(ir)->u64);
+	else
+#endif
+	  emit_loadi(as, r, ir->i);
+      } else {
+	lua_assert(rset_test(as->freeset, r));  /* Must have been evicted. */
+	if (ra_hasreg(ir->r)) {
+	  ra_noweak(as, ir->r);
+	  emit_movrr(as, ir, r, ir->r);
+	} else {
+	  ra_allocref(as, ref, RID2RSET(r));
+	}
+      }
+    } else if (irt_isfp(ir->t)) {  /* FP argument is on stack. */
+      lua_assert(!(irt_isfloat(ir->t) && irref_isk(ref)));  /* No float k. */
+      if (LJ_32 && (ofs & 4) && irref_isk(ref)) {
+	/* Split stores for unaligned FP consts. */
+	emit_movmroi(as, RID_ESP, ofs, (int32_t)ir_knum(ir)->u32.lo);
+	emit_movmroi(as, RID_ESP, ofs+4, (int32_t)ir_knum(ir)->u32.hi);
+      } else {
+	r = ra_alloc1(as, ref, RSET_FPR);
+	emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSDto : XO_MOVSSto,
+		  r, RID_ESP, ofs);
+      }
+      ofs += (LJ_32 && irt_isfloat(ir->t)) ? 4 : 8;
+    } else {  /* Non-FP argument is on stack. */
+      if (LJ_32 && ref < ASMREF_TMP1) {
+	emit_movmroi(as, RID_ESP, ofs, ir->i);
+      } else {
+	r = ra_alloc1(as, ref, RSET_GPR);
+	emit_movtomro(as, REX_64 + r, RID_ESP, ofs);
+      }
+      ofs += sizeof(intptr_t);
+    }
+    checkmclim(as);
+  }
+#if LJ_64 && !LJ_ABI_WIN
+  if (patchnfpr) *patchnfpr = fpr - REGARG_FIRSTFPR;
+#endif
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = (LJ_32 && (ir+1)->o == IR_HIOP);
+  if ((ci->flags & CCI_NOFPRCLOBBER))
+    drop &= ~RSET_FPR;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    if (irt_isfp(ir->t)) {
+      int32_t ofs = sps_scale(ir->s);  /* Use spill slot or temp slots. */
+#if LJ_64
+      if ((ci->flags & CCI_CASTU64)) {
+	Reg dest = ir->r;
+	if (ra_hasreg(dest)) {
+	  ra_free(as, dest);
+	  ra_modified(as, dest);
+	  emit_rr(as, XO_MOVD, dest|REX_64, RID_RET);  /* Really MOVQ. */
+	}
+	if (ofs) emit_movtomro(as, RID_RET|REX_64, RID_ESP, ofs);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+#else
+      /* Number result is in x87 st0 for x86 calling convention. */
+      Reg dest = ir->r;
+      if (ra_hasreg(dest)) {
+	ra_free(as, dest);
+	ra_modified(as, dest);
+	emit_rmro(as, irt_isnum(ir->t) ? XMM_MOVRM(as) : XO_MOVSS,
+		  dest, RID_ESP, ofs);
+      }
+      if ((ci->flags & CCI_CASTU64)) {
+	emit_movtomro(as, RID_RETLO, RID_ESP, ofs);
+	emit_movtomro(as, RID_RETHI, RID_ESP, ofs+4);
+      } else {
+	emit_rmro(as, irt_isnum(ir->t) ? XO_FSTPq : XO_FSTPd,
+		  irt_isnum(ir->t) ? XOg_FSTPq : XOg_FSTPd, RID_ESP, ofs);
+      }
+#endif
+#if LJ_32
+    } else if (hiop) {
+      ra_destpair(as, ir);
+#endif
+    } else {
+      lua_assert(!irt_ispri(ir->t));
+      ra_destreg(as, ir, RID_RET);
+    }
+  } else if (LJ_32 && irt_isfp(ir->t)) {
+    emit_x87op(as, XI_FPOP);  /* Pop unused result from x87 st0. */
+  }
+}
+
+static void asm_call(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX];
+  const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+  asm_collectargs(as, ir, ci, args);
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+/* Return a constant function pointer or NULL for indirect calls. */
+static void *asm_callx_func(ASMState *as, IRIns *irf, IRRef func)
+{
+#if LJ_32
+  UNUSED(as);
+  if (irref_isk(func))
+    return (void *)irf->i;
+#else
+  if (irref_isk(func)) {
+    MCode *p;
+    if (irf->o == IR_KINT64)
+      p = (MCode *)(void *)ir_k64(irf)->u64;
+    else
+      p = (MCode *)(void *)(uintptr_t)(uint32_t)irf->i;
+    if (p - as->mcp == (int32_t)(p - as->mcp))
+      return p;  /* Call target is still in +-2GB range. */
+    /* Avoid the indirect case of emit_call(). Try to hoist func addr. */
+  }
+#endif
+  return NULL;
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  int32_t spadj = 0;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+#if LJ_32
+  /* Have to readjust stack after non-cdecl calls due to callee cleanup. */
+  if ((ci.flags & CCI_CC_MASK) != CCI_CC_CDECL)
+    spadj = 4 * asm_count_call_slots(as, &ci, args);
+#endif
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  ci.func = (ASMFunction)asm_callx_func(as, irf, func);
+  if (!(void *)ci.func) {
+    /* Use a (hoistable) non-scratch register for indirect calls. */
+    RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+    Reg r = ra_alloc1(as, func, allow);
+    if (LJ_32) emit_spsub(as, spadj);  /* Above code may cause restores! */
+    emit_rr(as, XO_GROUP5, XOg_CALL, r);
+  } else if (LJ_32) {
+    emit_spsub(as, spadj);
+  }
+  asm_gencall(as, &ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+  emit_gmroi(as, XG_ARITHi(XOg_CMP), base, -4, ptr2addr(pc));
+}
+
+/* -- Type conversions ---------------------------------------------------- */
+
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_guardcc(as, CC_P);
+  asm_guardcc(as, CC_NE);
+  emit_rr(as, XO_UCOMISD, left, tmp);
+  emit_rr(as, XO_CVTSI2SD, tmp, dest);
+  if (!(as->flags & JIT_F_SPLIT_XMM))
+    emit_rr(as, XO_XORPS, tmp, tmp);  /* Avoid partial register stall. */
+  emit_rr(as, XO_CVTTSD2SI, dest, left);
+  /* Can't fuse since left is needed twice. */
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg tmp = ra_noreg(IR(ir->op1)->r) ?
+	      ra_alloc1(as, ir->op1, RSET_FPR) :
+	      ra_scratch(as, RSET_FPR);
+  Reg right = asm_fuseload(as, ir->op2, rset_exclude(RSET_FPR, tmp));
+  emit_rr(as, XO_MOVDto, tmp, dest);
+  emit_mrm(as, XO_ADDSD, tmp, right);
+  ra_left(as, tmp, ir->op1);
+}
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+  int st64 = (st == IRT_I64 || st == IRT_U64 || (LJ_64 && st == IRT_P64));
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+  IRRef lref = ir->op1;
+  lua_assert(irt_type(ir->t) != st);
+  lua_assert(!(LJ_32 && (irt_isint64(ir->t) || st64)));  /* Handled by SPLIT. */
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      Reg left = asm_fuseload(as, lref, RSET_FPR);
+      emit_mrm(as, st == IRT_NUM ? XO_CVTSD2SS : XO_CVTSS2SD, dest, left);
+      if (left == dest) return;  /* Avoid the XO_XORPS. */
+    } else if (LJ_32 && st == IRT_U32) {  /* U32 to FP conversion on x86. */
+      /* number = (2^52+2^51 .. u32) - (2^52+2^51) */
+      cTValue *k = lj_ir_k64_find(as->J, U64x(43380000,00000000));
+      Reg bias = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      if (irt_isfloat(ir->t))
+	emit_rr(as, XO_CVTSD2SS, dest, dest);
+      emit_rr(as, XO_SUBSD, dest, bias);  /* Subtract 2^52+2^51 bias. */
+      emit_rr(as, XO_XORPS, dest, bias);  /* Merge bias and integer. */
+      emit_loadn(as, bias, k);
+      emit_mrm(as, XO_MOVD, dest, asm_fuseload(as, lref, RSET_GPR));
+      return;
+    } else {  /* Integer to FP conversion. */
+      Reg left = (LJ_64 && (st == IRT_U32 || st == IRT_U64)) ?
+		 ra_alloc1(as, lref, RSET_GPR) :
+		 asm_fuseloadm(as, lref, RSET_GPR, st64);
+      if (LJ_64 && st == IRT_U64) {
+	MCLabel l_end = emit_label(as);
+	const void *k = lj_ir_k64_find(as->J, U64x(43f00000,00000000));
+	emit_rma(as, XO_ADDSD, dest, k);  /* Add 2^64 to compensate. */
+	emit_sjcc(as, CC_NS, l_end);
+	emit_rr(as, XO_TEST, left|REX_64, left);  /* Check if u64 >= 2^63. */
+      }
+      emit_mrm(as, irt_isnum(ir->t) ? XO_CVTSI2SD : XO_CVTSI2SS,
+	       dest|((LJ_64 && (st64 || st == IRT_U32)) ? REX_64 : 0), left);
+    }
+    if (!(as->flags & JIT_F_SPLIT_XMM))
+      emit_rr(as, XO_XORPS, dest, dest);  /* Avoid partial register stall. */
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lua_assert(irt_isint(ir->t) && st == IRT_NUM);
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      x86Op op = st == IRT_NUM ?
+		 ((ir->op2 & IRCONV_TRUNC) ? XO_CVTTSD2SI : XO_CVTSD2SI) :
+		 ((ir->op2 & IRCONV_TRUNC) ? XO_CVTTSS2SI : XO_CVTSS2SI);
+      if (LJ_64 ? irt_isu64(ir->t) : irt_isu32(ir->t)) {
+	/* LJ_64: For inputs >= 2^63 add -2^64, convert again. */
+	/* LJ_32: For inputs >= 2^31 add -2^31, convert again and add 2^31. */
+	Reg tmp = ra_noreg(IR(lref)->r) ? ra_alloc1(as, lref, RSET_FPR) :
+					  ra_scratch(as, RSET_FPR);
+	MCLabel l_end = emit_label(as);
+	if (LJ_32)
+	  emit_gri(as, XG_ARITHi(XOg_ADD), dest, (int32_t)0x80000000);
+	emit_rr(as, op, dest|REX_64, tmp);
+	if (st == IRT_NUM)
+	  emit_rma(as, XO_ADDSD, tmp, lj_ir_k64_find(as->J,
+		   LJ_64 ? U64x(c3f00000,00000000) : U64x(c1e00000,00000000)));
+	else
+	  emit_rma(as, XO_ADDSS, tmp, lj_ir_k64_find(as->J,
+		   LJ_64 ? U64x(00000000,df800000) : U64x(00000000,cf000000)));
+	emit_sjcc(as, CC_NS, l_end);
+	emit_rr(as, XO_TEST, dest|REX_64, dest);  /* Check if dest negative. */
+	emit_rr(as, op, dest|REX_64, tmp);
+	ra_left(as, tmp, lref);
+      } else {
+	Reg left = asm_fuseload(as, lref, RSET_FPR);
+	if (LJ_64 && irt_isu32(ir->t))
+	  emit_rr(as, XO_MOV, dest, dest);  /* Zero hiword. */
+	emit_mrm(as, op,
+		 dest|((LJ_64 &&
+			(irt_is64(ir->t) || irt_isu32(ir->t))) ? REX_64 : 0),
+		 left);
+      }
+    }
+  } else if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+    Reg left, dest = ra_dest(as, ir, RSET_GPR);
+    RegSet allow = RSET_GPR;
+    x86Op op;
+    lua_assert(irt_isint(ir->t) || irt_isu32(ir->t));
+    if (st == IRT_I8) {
+      op = XO_MOVSXb; allow = RSET_GPR8; dest |= FORCE_REX;
+    } else if (st == IRT_U8) {
+      op = XO_MOVZXb; allow = RSET_GPR8; dest |= FORCE_REX;
+    } else if (st == IRT_I16) {
+      op = XO_MOVSXw;
+    } else {
+      op = XO_MOVZXw;
+    }
+    left = asm_fuseload(as, lref, allow);
+    /* Add extra MOV if source is already in wrong register. */
+    if (!LJ_64 && left != RID_MRM && !rset_test(allow, left)) {
+      Reg tmp = ra_scratch(as, allow);
+      emit_rr(as, op, dest, tmp);
+      emit_rr(as, XO_MOV, tmp, left);
+    } else {
+      emit_mrm(as, op, dest, left);
+    }
+  } else {  /* 32/64 bit integer conversions. */
+    if (LJ_32) {  /* Only need to handle 32/32 bit no-op (cast) on x86. */
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      ra_left(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    } else if (irt_is64(ir->t)) {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      if (st64 || !(ir->op2 & IRCONV_SEXT)) {
+	/* 64/64 bit no-op (cast) or 32 to 64 bit zero extension. */
+	ra_left(as, dest, lref);  /* Do nothing, but may need to move regs. */
+      } else {  /* 32 to 64 bit sign extension. */
+	Reg left = asm_fuseload(as, lref, RSET_GPR);
+	emit_mrm(as, XO_MOVSXd, dest|REX_64, left);
+      }
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      if (st64) {
+	Reg left = asm_fuseload(as, lref, RSET_GPR);
+	/* This is either a 32 bit reg/reg mov which zeroes the hiword
+	** or a load of the loword from a 64 bit address.
+	*/
+	emit_mrm(as, XO_MOV, dest, left);
+      } else {  /* 32/32 bit no-op (cast). */
+	ra_left(as, dest, lref);  /* Do nothing, but may need to move regs. */
+      }
+    }
+  }
+}
+
+#if LJ_32 && LJ_HASFFI
+/* No SSE conversions to/from 64 bit on x86, so resort to ugly x87 code. */
+
+/* 64 bit integer to FP conversion in 32 bit mode. */
+static void asm_conv_fp_int64(ASMState *as, IRIns *ir)
+{
+  Reg hi = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg lo = ra_alloc1(as, (ir-1)->op1, rset_exclude(RSET_GPR, hi));
+  int32_t ofs = sps_scale(ir->s);  /* Use spill slot or temp slots. */
+  Reg dest = ir->r;
+  if (ra_hasreg(dest)) {
+    ra_free(as, dest);
+    ra_modified(as, dest);
+    emit_rmro(as, irt_isnum(ir->t) ? XMM_MOVRM(as) : XO_MOVSS,
+	      dest, RID_ESP, ofs);
+  }
+  emit_rmro(as, irt_isnum(ir->t) ? XO_FSTPq : XO_FSTPd,
+	    irt_isnum(ir->t) ? XOg_FSTPq : XOg_FSTPd, RID_ESP, ofs);
+  if (((ir-1)->op2 & IRCONV_SRCMASK) == IRT_U64) {
+    /* For inputs in [2^63,2^64-1] add 2^64 to compensate. */
+    MCLabel l_end = emit_label(as);
+    emit_rma(as, XO_FADDq, XOg_FADDq,
+	     lj_ir_k64_find(as->J, U64x(43f00000,00000000)));
+    emit_sjcc(as, CC_NS, l_end);
+    emit_rr(as, XO_TEST, hi, hi);  /* Check if u64 >= 2^63. */
+  } else {
+    lua_assert(((ir-1)->op2 & IRCONV_SRCMASK) == IRT_I64);
+  }
+  emit_rmro(as, XO_FILDq, XOg_FILDq, RID_ESP, 0);
+  /* NYI: Avoid narrow-to-wide store-to-load forwarding stall. */
+  emit_rmro(as, XO_MOVto, hi, RID_ESP, 4);
+  emit_rmro(as, XO_MOVto, lo, RID_ESP, 0);
+}
+
+/* FP to 64 bit integer conversion in 32 bit mode. */
+static void asm_conv_int64_fp(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)((ir-1)->op2 & IRCONV_SRCMASK);
+  IRType dt = (((ir-1)->op2 & IRCONV_DSTMASK) >> IRCONV_DSH);
+  Reg lo, hi;
+  lua_assert(st == IRT_NUM || st == IRT_FLOAT);
+  lua_assert(dt == IRT_I64 || dt == IRT_U64);
+  lua_assert(((ir-1)->op2 & IRCONV_TRUNC));
+  hi = ra_dest(as, ir, RSET_GPR);
+  lo = ra_dest(as, ir-1, rset_exclude(RSET_GPR, hi));
+  if (ra_used(ir-1)) emit_rmro(as, XO_MOV, lo, RID_ESP, 0);
+  /* NYI: Avoid wide-to-narrow store-to-load forwarding stall. */
+  if (!(as->flags & JIT_F_SSE3)) {  /* Set FPU rounding mode to default. */
+    emit_rmro(as, XO_FLDCW, XOg_FLDCW, RID_ESP, 4);
+    emit_rmro(as, XO_MOVto, lo, RID_ESP, 4);
+    emit_gri(as, XG_ARITHi(XOg_AND), lo, 0xf3ff);
+  }
+  if (dt == IRT_U64) {
+    /* For inputs in [2^63,2^64-1] add -2^64 and convert again. */
+    MCLabel l_pop, l_end = emit_label(as);
+    emit_x87op(as, XI_FPOP);
+    l_pop = emit_label(as);
+    emit_sjmp(as, l_end);
+    emit_rmro(as, XO_MOV, hi, RID_ESP, 4);
+    if ((as->flags & JIT_F_SSE3))
+      emit_rmro(as, XO_FISTTPq, XOg_FISTTPq, RID_ESP, 0);
+    else
+      emit_rmro(as, XO_FISTPq, XOg_FISTPq, RID_ESP, 0);
+    emit_rma(as, XO_FADDq, XOg_FADDq,
+	     lj_ir_k64_find(as->J, U64x(c3f00000,00000000)));
+    emit_sjcc(as, CC_NS, l_pop);
+    emit_rr(as, XO_TEST, hi, hi);  /* Check if out-of-range (2^63). */
+  }
+  emit_rmro(as, XO_MOV, hi, RID_ESP, 4);
+  if ((as->flags & JIT_F_SSE3)) {  /* Truncation is easy with SSE3. */
+    emit_rmro(as, XO_FISTTPq, XOg_FISTTPq, RID_ESP, 0);
+  } else {  /* Otherwise set FPU rounding mode to truncate before the store. */
+    emit_rmro(as, XO_FISTPq, XOg_FISTPq, RID_ESP, 0);
+    emit_rmro(as, XO_FLDCW, XOg_FLDCW, RID_ESP, 0);
+    emit_rmro(as, XO_MOVtow, lo, RID_ESP, 0);
+    emit_rmro(as, XO_ARITHw(XOg_OR), lo, RID_ESP, 0);
+    emit_loadi(as, lo, 0xc00);
+    emit_rmro(as, XO_FNSTCW, XOg_FNSTCW, RID_ESP, 0);
+  }
+  if (dt == IRT_U64)
+    emit_x87op(as, XI_FDUP);
+  emit_mrm(as, st == IRT_NUM ? XO_FLDq : XO_FLDd,
+	   st == IRT_NUM ? XOg_FLDq: XOg_FLDd,
+	   asm_fuseload(as, ir->op1, RSET_EMPTY));
+}
+#endif
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  /* Force a spill slot for the destination register (if any). */
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  RegSet drop = RSET_SCRATCH;
+  if ((drop & RSET_FPR) != RSET_FPR && ra_hasreg(ir->r))
+    rset_set(drop, ir->r);  /* WIN64 doesn't spill all FPRs. */
+  ra_evictset(as, drop);
+  asm_guardcc(as, CC_E);
+  emit_rr(as, XO_TEST, RID_RET, RID_RET);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  /* Store the result to the spill slot or temp slots. */
+  emit_rmro(as, XO_LEA, ra_releasetmp(as, ASMREF_TMP1)|REX_64,
+	    RID_ESP, sps_scale(ir->s));
+}
+
+static void asm_tostr(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1);
+  IRRef args[2];
+  args[0] = ASMREF_L;
+  as->gcsteps++;
+  if (irt_isnum(irl->t)) {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromnum];
+    args[1] = ASMREF_TMP1;  /* const lua_Number * */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+    emit_rmro(as, XO_LEA, ra_releasetmp(as, ASMREF_TMP1)|REX_64,
+	      RID_ESP, ra_spill(as, irl));
+  } else {
+    const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_fromint];
+    args[1] = ir->op1;  /* int32_t k */
+    asm_setupresult(as, ir, ci);  /* GCstr * */
+    asm_gencall(as, ci, args);
+  }
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_fusearef(as, ir, RSET_GPR);
+  if (!(as->mrm.idx == RID_NONE && as->mrm.ofs == 0))
+    emit_mrm(as, XO_LEA, dest, RID_MRM);
+  else if (as->mrm.base != dest)
+    emit_rr(as, XO_MOV, dest, as->mrm.base);
+}
+
+/* Merge NE(HREF, niltv) check. */
+static MCode *merge_href_niltv(ASMState *as, IRIns *ir)
+{
+  /* Assumes nothing else generates NE of HREF. */
+  if ((ir[1].o == IR_NE || ir[1].o == IR_EQ) && ir[1].op1 == as->curins &&
+      ra_hasreg(ir->r)) {
+    MCode *p = as->mcp;
+    p += (LJ_64 && *p != XI_ARITHi) ? 7+6 : 6+6;
+    /* Ensure no loop branch inversion happened. */
+    if (p[-6] == 0x0f && p[-5] == XI_JCCn+(CC_NE^(ir[1].o & 1))) {
+      as->mcp = p;  /* Kill cmp reg, imm32 + jz exit. */
+      return p + *(int32_t *)(p-4);  /* Return exit address. */
+    }
+  }
+  return NULL;
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir)
+{
+  MCode *nilexit = merge_href_niltv(as, ir);  /* Do this before any restores. */
+  RegSet allow = RSET_GPR;
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = RID_NONE, tmp = RID_NONE;
+  IRIns *irkey = IR(ir->op2);
+  int isk = irref_isk(ir->op2);
+  IRType1 kt = irkey->t;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+
+  if (!isk) {
+    rset_clear(allow, tab);
+    key = ra_alloc1(as, ir->op2, irt_isnum(kt) ? RSET_FPR : allow);
+    if (!irt_isstr(kt))
+      tmp = ra_scratch(as, rset_exclude(allow, key));
+  }
+
+  /* Key not found in chain: jump to exit (if merged with NE) or load niltv. */
+  l_end = emit_label(as);
+  if (nilexit && ir[1].o == IR_NE) {
+    emit_jcc(as, CC_E, nilexit);  /* XI_JMP is not found by lj_asm_patchexit. */
+    nilexit = NULL;
+  } else {
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+  }
+
+  /* Follow hash chain until the end. */
+  l_loop = emit_sjcc_label(as, CC_NZ);
+  emit_rr(as, XO_TEST, dest, dest);
+  emit_rmro(as, XO_MOV, dest, dest, offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (nilexit)
+    emit_jcc(as, CC_E, nilexit);
+  else
+    emit_sjcc(as, CC_E, l_end);
+  if (irt_isnum(kt)) {
+    if (isk) {
+      /* Assumes -0.0 is already canonicalized to +0.0. */
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.u32.lo),
+		 (int32_t)ir_knum(irkey)->u32.lo);
+      emit_sjcc(as, CC_NE, l_next);
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.u32.hi),
+		 (int32_t)ir_knum(irkey)->u32.hi);
+    } else {
+      emit_sjcc(as, CC_P, l_next);
+      emit_rmro(as, XO_UCOMISD, key, dest, offsetof(Node, key.n));
+      emit_sjcc(as, CC_AE, l_next);
+      /* The type check avoids NaN penalties and complaints from Valgrind. */
+#if LJ_64
+      emit_u32(as, LJ_TISNUM);
+      emit_rmro(as, XO_ARITHi, XOg_CMP, dest, offsetof(Node, key.it));
+#else
+      emit_i8(as, LJ_TISNUM);
+      emit_rmro(as, XO_ARITHi8, XOg_CMP, dest, offsetof(Node, key.it));
+#endif
+    }
+#if LJ_64
+  } else if (irt_islightud(kt)) {
+    emit_rmro(as, XO_CMP, key|REX_64, dest, offsetof(Node, key.u64));
+#endif
+  } else {
+    if (!irt_ispri(kt)) {
+      lua_assert(irt_isaddr(kt));
+      if (isk)
+	emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.gcr),
+		   ptr2addr(ir_kgc(irkey)));
+      else
+	emit_rmro(as, XO_CMP, key, dest, offsetof(Node, key.gcr));
+      emit_sjcc(as, CC_NE, l_next);
+    }
+    lua_assert(!irt_isnil(kt));
+    emit_i8(as, irt_toitype(kt));
+    emit_rmro(as, XO_ARITHi8, XOg_CMP, dest, offsetof(Node, key.it));
+  }
+  emit_sfixup(as, l_loop);
+  checkmclim(as);
+
+  /* Load main position relative to tab->node into dest. */
+  khash = isk ? ir_khash(irkey) : 1;
+  if (khash == 0) {
+    emit_rmro(as, XO_MOV, dest, tab, offsetof(GCtab, node));
+  } else {
+    emit_rmro(as, XO_ARITH(XOg_ADD), dest, tab, offsetof(GCtab, node));
+    if ((as->flags & JIT_F_PREFER_IMUL)) {
+      emit_i8(as, sizeof(Node));
+      emit_rr(as, XO_IMULi8, dest, dest);
+    } else {
+      emit_shifti(as, XOg_SHL, dest, 3);
+      emit_rmrxo(as, XO_LEA, dest, dest, dest, XM_SCALE2, 0);
+    }
+    if (isk) {
+      emit_gri(as, XG_ARITHi(XOg_AND), dest, (int32_t)khash);
+      emit_rmro(as, XO_MOV, dest, tab, offsetof(GCtab, hmask));
+    } else if (irt_isstr(kt)) {
+      emit_rmro(as, XO_ARITH(XOg_AND), dest, key, offsetof(GCstr, hash));
+      emit_rmro(as, XO_MOV, dest, tab, offsetof(GCtab, hmask));
+    } else {  /* Must match with hashrot() in lj_tab.c. */
+      emit_rmro(as, XO_ARITH(XOg_AND), dest, tab, offsetof(GCtab, hmask));
+      emit_rr(as, XO_ARITH(XOg_SUB), dest, tmp);
+      emit_shifti(as, XOg_ROL, tmp, HASH_ROT3);
+      emit_rr(as, XO_ARITH(XOg_XOR), dest, tmp);
+      emit_shifti(as, XOg_ROL, dest, HASH_ROT2);
+      emit_rr(as, XO_ARITH(XOg_SUB), tmp, dest);
+      emit_shifti(as, XOg_ROL, dest, HASH_ROT1);
+      emit_rr(as, XO_ARITH(XOg_XOR), tmp, dest);
+      if (irt_isnum(kt)) {
+	emit_rr(as, XO_ARITH(XOg_ADD), dest, dest);
+#if LJ_64
+	emit_shifti(as, XOg_SHR|REX_64, dest, 32);
+	emit_rr(as, XO_MOV, tmp, dest);
+	emit_rr(as, XO_MOVDto, key|REX_64, dest);
+#else
+	emit_rmro(as, XO_MOV, dest, RID_ESP, ra_spill(as, irkey)+4);
+	emit_rr(as, XO_MOVDto, key, tmp);
+#endif
+      } else {
+	emit_rr(as, XO_MOV, tmp, key);
+	emit_rmro(as, XO_LEA, dest, key, HASH_BIAS);
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  Reg dest = ra_used(ir) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+#if !LJ_64
+  MCLabel l_exit;
+#endif
+  lua_assert(ofs % sizeof(Node) == 0);
+  if (ra_hasreg(dest)) {
+    if (ofs != 0) {
+      if (dest == node && !(as->flags & JIT_F_LEA_AGU))
+	emit_gri(as, XG_ARITHi(XOg_ADD), dest, ofs);
+      else
+	emit_rmro(as, XO_LEA, dest, node, ofs);
+    } else if (dest != node) {
+      emit_rr(as, XO_MOV, dest, node);
+    }
+  }
+  asm_guardcc(as, CC_NE);
+#if LJ_64
+  if (!irt_ispri(irkey->t)) {
+    Reg key = ra_scratch(as, rset_exclude(RSET_GPR, node));
+    emit_rmro(as, XO_CMP, key|REX_64, node,
+	       ofs + (int32_t)offsetof(Node, key.u64));
+    lua_assert(irt_isnum(irkey->t) || irt_isgcv(irkey->t));
+    /* Assumes -0.0 is already canonicalized to +0.0. */
+    emit_loadu64(as, key, irt_isnum(irkey->t) ? ir_knum(irkey)->u64 :
+			  ((uint64_t)irt_toitype(irkey->t) << 32) |
+			  (uint64_t)(uint32_t)ptr2addr(ir_kgc(irkey)));
+  } else {
+    lua_assert(!irt_isnil(irkey->t));
+    emit_i8(as, irt_toitype(irkey->t));
+    emit_rmro(as, XO_ARITHi8, XOg_CMP, node,
+	      ofs + (int32_t)offsetof(Node, key.it));
+  }
+#else
+  l_exit = emit_label(as);
+  if (irt_isnum(irkey->t)) {
+    /* Assumes -0.0 is already canonicalized to +0.0. */
+    emit_gmroi(as, XG_ARITHi(XOg_CMP), node,
+	       ofs + (int32_t)offsetof(Node, key.u32.lo),
+	       (int32_t)ir_knum(irkey)->u32.lo);
+    emit_sjcc(as, CC_NE, l_exit);
+    emit_gmroi(as, XG_ARITHi(XOg_CMP), node,
+	       ofs + (int32_t)offsetof(Node, key.u32.hi),
+	       (int32_t)ir_knum(irkey)->u32.hi);
+  } else {
+    if (!irt_ispri(irkey->t)) {
+      lua_assert(irt_isgcv(irkey->t));
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), node,
+		 ofs + (int32_t)offsetof(Node, key.gcr),
+		 ptr2addr(ir_kgc(irkey)));
+      emit_sjcc(as, CC_NE, l_exit);
+    }
+    lua_assert(!irt_isnil(irkey->t));
+    emit_i8(as, irt_toitype(irkey->t));
+    emit_rmro(as, XO_ARITHi8, XOg_CMP, node,
+	      ofs + (int32_t)offsetof(Node, key.it));
+  }
+#endif
+}
+
+static void asm_newref(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
+  IRRef args[3];
+  IRIns *irkey;
+  Reg tmp;
+  if (ir->r == RID_SINK)
+    return;
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ir->op1;      /* GCtab *t     */
+  args[2] = ASMREF_TMP1;  /* cTValue *key */
+  asm_setupresult(as, ir, ci);  /* TValue * */
+  asm_gencall(as, ci, args);
+  tmp = ra_releasetmp(as, ASMREF_TMP1);
+  irkey = IR(ir->op2);
+  if (irt_isnum(irkey->t)) {
+    /* For numbers use the constant itself or a spill slot as a TValue. */
+    if (irref_isk(ir->op2))
+      emit_loada(as, tmp, ir_knum(irkey));
+    else
+      emit_rmro(as, XO_LEA, tmp|REX_64, RID_ESP, ra_spill(as, irkey));
+  } else {
+    /* Otherwise use g->tmptv to hold the TValue. */
+    if (!irref_isk(ir->op2)) {
+      Reg src = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, tmp));
+      emit_movtomro(as, REX_64IR(irkey, src), tmp, 0);
+    } else if (!irt_ispri(irkey->t)) {
+      emit_movmroi(as, tmp, 0, irkey->i);
+    }
+    if (!(LJ_64 && irt_islightud(irkey->t)))
+      emit_movmroi(as, tmp, 4, irt_toitype(irkey->t));
+    emit_loada(as, tmp, &J2G(as->J)->tmptv);
+  }
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  /* NYI: Check that UREFO is still open and not aliasing a slot. */
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_rma(as, XO_MOV, dest, v);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      emit_rmro(as, XO_LEA, dest, uv, offsetof(GCupval, tv));
+      asm_guardcc(as, CC_NE);
+      emit_i8(as, 1);
+      emit_rmro(as, XO_ARITHib, XOg_CMP, uv, offsetof(GCupval, closed));
+    } else {
+      emit_rmro(as, XO_MOV, dest, uv, offsetof(GCupval, v));
+    }
+    emit_rmro(as, XO_MOV, uv, func,
+	      (int32_t)offsetof(GCfuncL, uvptr) + 4*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_fusefref(as, ir, RSET_GPR);
+  emit_mrm(as, XO_LEA, dest, RID_MRM);
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_fusestrref(as, ir, RSET_GPR);
+  if (as->mrm.base == RID_NONE)
+    emit_loadi(as, dest, as->mrm.ofs);
+  else if (as->mrm.base == dest && as->mrm.idx == RID_NONE)
+    emit_gri(as, XG_ARITHi(XOg_ADD), dest, as->mrm.ofs);
+  else
+    emit_mrm(as, XO_LEA, dest, RID_MRM);
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static void asm_fxload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+  x86Op xo;
+  if (ir->o == IR_FLOAD)
+    asm_fusefref(as, ir, RSET_GPR);
+  else
+    asm_fusexref(as, ir->op1, RSET_GPR);
+  /* ir->op2 is ignored -- unaligned loads are ok on x86. */
+  switch (irt_type(ir->t)) {
+  case IRT_I8: xo = XO_MOVSXb; break;
+  case IRT_U8: xo = XO_MOVZXb; break;
+  case IRT_I16: xo = XO_MOVSXw; break;
+  case IRT_U16: xo = XO_MOVZXw; break;
+  case IRT_NUM: xo = XMM_MOVRM(as); break;
+  case IRT_FLOAT: xo = XO_MOVSS; break;
+  default:
+    if (LJ_64 && irt_is64(ir->t))
+      dest |= REX_64;
+    else
+      lua_assert(irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t));
+    xo = XO_MOV;
+    break;
+  }
+  emit_mrm(as, xo, dest, RID_MRM);
+}
+
+static void asm_fxstore(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg src = RID_NONE, osrc = RID_NONE;
+  int32_t k = 0;
+  if (ir->r == RID_SINK)
+    return;
+  /* The IRT_I16/IRT_U16 stores should never be simplified for constant
+  ** values since mov word [mem], imm16 has a length-changing prefix.
+  */
+  if (irt_isi16(ir->t) || irt_isu16(ir->t) || irt_isfp(ir->t) ||
+      !asm_isk32(as, ir->op2, &k)) {
+    RegSet allow8 = irt_isfp(ir->t) ? RSET_FPR :
+		    (irt_isi8(ir->t) || irt_isu8(ir->t)) ? RSET_GPR8 : RSET_GPR;
+    src = osrc = ra_alloc1(as, ir->op2, allow8);
+    if (!LJ_64 && !rset_test(allow8, src)) {  /* Already in wrong register. */
+      rset_clear(allow, osrc);
+      src = ra_scratch(as, allow8);
+    }
+    rset_clear(allow, src);
+  }
+  if (ir->o == IR_FSTORE) {
+    asm_fusefref(as, IR(ir->op1), allow);
+  } else {
+    asm_fusexref(as, ir->op1, allow);
+    if (LJ_32 && ir->o == IR_HIOP) as->mrm.ofs += 4;
+  }
+  if (ra_hasreg(src)) {
+    x86Op xo;
+    switch (irt_type(ir->t)) {
+    case IRT_I8: case IRT_U8: xo = XO_MOVtob; src |= FORCE_REX; break;
+    case IRT_I16: case IRT_U16: xo = XO_MOVtow; break;
+    case IRT_NUM: xo = XO_MOVSDto; break;
+    case IRT_FLOAT: xo = XO_MOVSSto; break;
+#if LJ_64
+    case IRT_LIGHTUD: lua_assert(0);  /* NYI: mask 64 bit lightuserdata. */
+#endif
+    default:
+      if (LJ_64 && irt_is64(ir->t))
+	src |= REX_64;
+      else
+	lua_assert(irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t));
+      xo = XO_MOVto;
+      break;
+    }
+    emit_mrm(as, xo, src, RID_MRM);
+    if (!LJ_64 && src != osrc) {
+      ra_noweak(as, osrc);
+      emit_rr(as, XO_MOV, src, osrc);
+    }
+  } else {
+    if (irt_isi8(ir->t) || irt_isu8(ir->t)) {
+      emit_i8(as, k);
+      emit_mrm(as, XO_MOVmib, 0, RID_MRM);
+    } else {
+      lua_assert(irt_is64(ir->t) || irt_isint(ir->t) || irt_isu32(ir->t) ||
+		 irt_isaddr(ir->t));
+      emit_i32(as, k);
+      emit_mrm(as, XO_MOVmi, REX_64IR(ir, 0), RID_MRM);
+    }
+  }
+}
+
+#if LJ_64
+static Reg asm_load_lightud64(ASMState *as, IRIns *ir, int typecheck)
+{
+  if (ra_used(ir) || typecheck) {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (typecheck) {
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, dest));
+      asm_guardcc(as, CC_NE);
+      emit_i8(as, -2);
+      emit_rr(as, XO_ARITHi8, XOg_CMP, tmp);
+      emit_shifti(as, XOg_SAR|REX_64, tmp, 47);
+      emit_rr(as, XO_MOV, tmp|REX_64, dest);
+    }
+    return dest;
+  } else {
+    return RID_NONE;
+  }
+}
+#endif
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  lua_assert(irt_isnum(ir->t) || irt_ispri(ir->t) || irt_isaddr(ir->t) ||
+	     (LJ_DUALNUM && irt_isint(ir->t)));
+#if LJ_64
+  if (irt_islightud(ir->t)) {
+    Reg dest = asm_load_lightud64(as, ir, 1);
+    if (ra_hasreg(dest)) {
+      asm_fuseahuref(as, ir->op1, RSET_GPR);
+      emit_mrm(as, XO_MOV, dest|REX_64, RID_MRM);
+    }
+    return;
+  } else
+#endif
+  if (ra_used(ir)) {
+    RegSet allow = irt_isnum(ir->t) ? RSET_FPR : RSET_GPR;
+    Reg dest = ra_dest(as, ir, allow);
+    asm_fuseahuref(as, ir->op1, RSET_GPR);
+    emit_mrm(as, dest < RID_MAX_GPR ? XO_MOV : XMM_MOVRM(as), dest, RID_MRM);
+  } else {
+    asm_fuseahuref(as, ir->op1, RSET_GPR);
+  }
+  /* Always do the type check, even if the load result is unused. */
+  as->mrm.ofs += 4;
+  asm_guardcc(as, irt_isnum(ir->t) ? CC_AE : CC_NE);
+  if (LJ_64 && irt_type(ir->t) >= IRT_NUM) {
+    lua_assert(irt_isinteger(ir->t) || irt_isnum(ir->t));
+    emit_u32(as, LJ_TISNUM);
+    emit_mrm(as, XO_ARITHi, XOg_CMP, RID_MRM);
+  } else {
+    emit_i8(as, irt_toitype(ir->t));
+    emit_mrm(as, XO_ARITHi8, XOg_CMP, RID_MRM);
+  }
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  if (ir->r == RID_SINK)
+    return;
+  if (irt_isnum(ir->t)) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_FPR);
+    asm_fuseahuref(as, ir->op1, RSET_GPR);
+    emit_mrm(as, XO_MOVSDto, src, RID_MRM);
+#if LJ_64
+  } else if (irt_islightud(ir->t)) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    asm_fuseahuref(as, ir->op1, rset_exclude(RSET_GPR, src));
+    emit_mrm(as, XO_MOVto, src|REX_64, RID_MRM);
+#endif
+  } else {
+    IRIns *irr = IR(ir->op2);
+    RegSet allow = RSET_GPR;
+    Reg src = RID_NONE;
+    if (!irref_isk(ir->op2)) {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+    }
+    asm_fuseahuref(as, ir->op1, allow);
+    if (ra_hasreg(src)) {
+      emit_mrm(as, XO_MOVto, src, RID_MRM);
+    } else if (!irt_ispri(irr->t)) {
+      lua_assert(irt_isaddr(ir->t) || (LJ_DUALNUM && irt_isinteger(ir->t)));
+      emit_i32(as, irr->i);
+      emit_mrm(as, XO_MOVmi, 0, RID_MRM);
+    }
+    as->mrm.ofs += 4;
+    emit_i32(as, (int32_t)irt_toitype(ir->t));
+    emit_mrm(as, XO_MOVmi, 0, RID_MRM);
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+  IRType1 t = ir->t;
+  Reg base;
+  lua_assert(!(ir->op2 & IRSLOAD_PARENT));  /* Handled by asm_head_side(). */
+  lua_assert(irt_isguard(t) || !(ir->op2 & IRSLOAD_TYPECHECK));
+  lua_assert(LJ_DUALNUM ||
+	     !irt_isint(t) || (ir->op2 & (IRSLOAD_CONVERT|IRSLOAD_FRAME)));
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    Reg left = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, left);  /* Frees dest reg. Do this before base alloc. */
+    base = ra_alloc1(as, REF_BASE, RSET_GPR);
+    emit_rmro(as, XMM_MOVRM(as), left, base, ofs);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+#if LJ_64
+  } else if (irt_islightud(t)) {
+    Reg dest = asm_load_lightud64(as, ir, (ir->op2 & IRSLOAD_TYPECHECK));
+    if (ra_hasreg(dest)) {
+      base = ra_alloc1(as, REF_BASE, RSET_GPR);
+      emit_rmro(as, XO_MOV, dest|REX_64, base, ofs);
+    }
+    return;
+#endif
+  } else if (ra_used(ir)) {
+    RegSet allow = irt_isnum(t) ? RSET_FPR : RSET_GPR;
+    Reg dest = ra_dest(as, ir, allow);
+    base = ra_alloc1(as, REF_BASE, RSET_GPR);
+    lua_assert(irt_isnum(t) || irt_isint(t) || irt_isaddr(t));
+    if ((ir->op2 & IRSLOAD_CONVERT)) {
+      t.irt = irt_isint(t) ? IRT_NUM : IRT_INT;  /* Check for original type. */
+      emit_rmro(as, irt_isint(t) ? XO_CVTSI2SD : XO_CVTSD2SI, dest, base, ofs);
+    } else if (irt_isnum(t)) {
+      emit_rmro(as, XMM_MOVRM(as), dest, base, ofs);
+    } else {
+      emit_rmro(as, XO_MOV, dest, base, ofs);
+    }
+  } else {
+    if (!(ir->op2 & IRSLOAD_TYPECHECK))
+      return;  /* No type check: avoid base alloc. */
+    base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  }
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    /* Need type check, even if the load result is unused. */
+    asm_guardcc(as, irt_isnum(t) ? CC_AE : CC_NE);
+    if (LJ_64 && irt_type(t) >= IRT_NUM) {
+      lua_assert(irt_isinteger(t) || irt_isnum(t));
+      emit_u32(as, LJ_TISNUM);
+      emit_rmro(as, XO_ARITHi, XOg_CMP, base, ofs+4);
+    } else {
+      emit_i8(as, irt_toitype(t));
+      emit_rmro(as, XO_ARITHi8, XOg_CMP, base, ofs+4);
+    }
+  }
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID ctypeid = (CTypeID)IR(ir->op1)->i;
+  CTSize sz = (ir->o == IR_CNEWI || ir->op2 == REF_NIL) ?
+	      lj_ctype_size(cts, ctypeid) : (CTSize)IR(ir->op2)->i;
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[2];
+  lua_assert(sz != CTSIZE_INVALID);
+
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+#if LJ_64
+    Reg r64 = sz == 8 ? REX_64 : 0;
+    if (irref_isk(ir->op2)) {
+      IRIns *irk = IR(ir->op2);
+      uint64_t k = irk->o == IR_KINT64 ? ir_k64(irk)->u64 :
+					 (uint64_t)(uint32_t)irk->i;
+      if (sz == 4 || checki32((int64_t)k)) {
+	emit_i32(as, (int32_t)k);
+	emit_rmro(as, XO_MOVmi, r64, RID_RET, sizeof(GCcdata));
+      } else {
+	emit_movtomro(as, RID_ECX + r64, RID_RET, sizeof(GCcdata));
+	emit_loadu64(as, RID_ECX, k);
+      }
+    } else {
+      Reg r = ra_alloc1(as, ir->op2, allow);
+      emit_movtomro(as, r + r64, RID_RET, sizeof(GCcdata));
+    }
+#else
+    int32_t ofs = sizeof(GCcdata);
+    if (sz == 8) {
+      ofs += 4; ir++;
+      lua_assert(ir->o == IR_HIOP);
+    }
+    do {
+      if (irref_isk(ir->op2)) {
+	emit_movmroi(as, RID_RET, ofs, IR(ir->op2)->i);
+      } else {
+	Reg r = ra_alloc1(as, ir->op2, allow);
+	emit_movtomro(as, r, RID_RET, ofs);
+	rset_clear(allow, r);
+      }
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; ir--;
+    } while (1);
+#endif
+    lua_assert(sz == 4 || sz == 8);
+  }
+
+  /* Combine initialization of marked, gct and ctypeid. */
+  emit_movtomro(as, RID_ECX, RID_RET, offsetof(GCcdata, marked));
+  emit_gri(as, XG_ARITHi(XOg_OR), RID_ECX,
+	   (int32_t)((~LJ_TCDATA<<8)+(ctypeid<<16)));
+  emit_gri(as, XG_ARITHi(XOg_AND), RID_ECX, LJ_GC_WHITES);
+  emit_opgl(as, XO_MOVZXb, RID_ECX, gc.currentwhite);
+
+  asm_gencall(as, ci, args);
+  emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)(sz+sizeof(GCcdata)));
+}
+#else
+#define asm_cnew(as, ir)	((void)0)
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  MCLabel l_end = emit_label(as);
+  emit_movtomro(as, tmp, tab, offsetof(GCtab, gclist));
+  emit_setgl(as, tab, gc.grayagain);
+  emit_getgl(as, tmp, gc.grayagain);
+  emit_i8(as, ~LJ_GC_BLACK);
+  emit_rmro(as, XO_ARITHib, XOg_AND, tab, offsetof(GCtab, marked));
+  emit_sjcc(as, CC_Z, l_end);
+  emit_i8(as, LJ_GC_BLACK);
+  emit_rmro(as, XO_GROUP3b, XOg_TEST, tab, offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj;
+  /* No need for other object barriers (yet). */
+  lua_assert(IR(ir->op1)->o == IR_UREFC);
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_loada(as, ra_releasetmp(as, ASMREF_TMP1), J2G(as->J));
+  obj = IR(ir->op1)->r;
+  emit_sjcc(as, CC_Z, l_end);
+  emit_i8(as, LJ_GC_WHITES);
+  if (irref_isk(ir->op2)) {
+    GCobj *vp = ir_kgc(IR(ir->op2));
+    emit_rma(as, XO_GROUP3b, XOg_TEST, &vp->gch.marked);
+  } else {
+    Reg val = ra_alloc1(as, ir->op2, rset_exclude(RSET_SCRATCH&RSET_GPR, obj));
+    emit_rmro(as, XO_GROUP3b, XOg_TEST, val, (int32_t)offsetof(GChead, marked));
+  }
+  emit_sjcc(as, CC_Z, l_end);
+  emit_i8(as, LJ_GC_BLACK);
+  emit_rmro(as, XO_GROUP3b, XOg_TEST, obj,
+	    (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+}
+
+/* -- FP/int arithmetic and logic operations ------------------------------ */
+
+/* Load reference onto x87 stack. Force a spill to memory if needed. */
+static void asm_x87load(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_KNUM) {
+    cTValue *tv = ir_knum(ir);
+    if (tvispzero(tv))  /* Use fldz only for +0. */
+      emit_x87op(as, XI_FLDZ);
+    else if (tvispone(tv))
+      emit_x87op(as, XI_FLD1);
+    else
+      emit_rma(as, XO_FLDq, XOg_FLDq, tv);
+  } else if (ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT && !ra_used(ir) &&
+	     !irref_isk(ir->op1) && mayfuse(as, ir->op1)) {
+    IRIns *iri = IR(ir->op1);
+    emit_rmro(as, XO_FILDd, XOg_FILDd, RID_ESP, ra_spill(as, iri));
+  } else {
+    emit_mrm(as, XO_FLDq, XOg_FLDq, asm_fuseload(as, ref, RSET_EMPTY));
+  }
+}
+
+/* Try to rejoin pow from EXP2, MUL and LOG2 (if still unsplit). */
+static int fpmjoin_pow(ASMState *as, IRIns *ir)
+{
+  IRIns *irp = IR(ir->op1);
+  if (irp == ir-1 && irp->o == IR_MUL && !ra_used(irp)) {
+    IRIns *irpp = IR(irp->op1);
+    if (irpp == ir-2 && irpp->o == IR_FPMATH &&
+	irpp->op2 == IRFPM_LOG2 && !ra_used(irpp)) {
+      /* The modified regs must match with the *.dasc implementation. */
+      RegSet drop = RSET_RANGE(RID_XMM0, RID_XMM2+1)|RID2RSET(RID_EAX);
+      IRIns *irx;
+      if (ra_hasreg(ir->r))
+	rset_clear(drop, ir->r);  /* Dest reg handled below. */
+      ra_evictset(as, drop);
+      ra_destreg(as, ir, RID_XMM0);
+      emit_call(as, lj_vm_pow_sse);
+      irx = IR(irpp->op1);
+      if (ra_noreg(irx->r) && ra_gethint(irx->r) == RID_XMM1)
+	irx->r = RID_INIT;  /* Avoid allocating xmm1 for x. */
+      ra_left(as, RID_XMM0, irpp->op1);
+      ra_left(as, RID_XMM1, irp->op2);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static void asm_fpmath(ASMState *as, IRIns *ir)
+{
+  IRFPMathOp fpm = ir->o == IR_FPMATH ? (IRFPMathOp)ir->op2 : IRFPM_OTHER;
+  if (fpm == IRFPM_SQRT) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg left = asm_fuseload(as, ir->op1, RSET_FPR);
+    emit_mrm(as, XO_SQRTSD, dest, left);
+  } else if (fpm <= IRFPM_TRUNC) {
+    if (as->flags & JIT_F_SSE4_1) {  /* SSE4.1 has a rounding instruction. */
+      Reg dest = ra_dest(as, ir, RSET_FPR);
+      Reg left = asm_fuseload(as, ir->op1, RSET_FPR);
+      /* ROUNDSD has a 4-byte opcode which doesn't fit in x86Op.
+      ** Let's pretend it's a 3-byte opcode, and compensate afterwards.
+      ** This is atrocious, but the alternatives are much worse.
+      */
+      /* Round down/up/trunc == 1001/1010/1011. */
+      emit_i8(as, 0x09 + fpm);
+      emit_mrm(as, XO_ROUNDSD, dest, left);
+      if (LJ_64 && as->mcp[1] != (MCode)(XO_ROUNDSD >> 16)) {
+	as->mcp[0] = as->mcp[1]; as->mcp[1] = 0x0f;  /* Swap 0F and REX. */
+      }
+      *--as->mcp = 0x66;  /* 1st byte of ROUNDSD opcode. */
+    } else {  /* Call helper functions for SSE2 variant. */
+      /* The modified regs must match with the *.dasc implementation. */
+      RegSet drop = RSET_RANGE(RID_XMM0, RID_XMM3+1)|RID2RSET(RID_EAX);
+      if (ra_hasreg(ir->r))
+	rset_clear(drop, ir->r);  /* Dest reg handled below. */
+      ra_evictset(as, drop);
+      ra_destreg(as, ir, RID_XMM0);
+      emit_call(as, fpm == IRFPM_FLOOR ? lj_vm_floor_sse :
+		    fpm == IRFPM_CEIL ? lj_vm_ceil_sse : lj_vm_trunc_sse);
+      ra_left(as, RID_XMM0, ir->op1);
+    }
+  } else if (fpm == IRFPM_EXP2 && fpmjoin_pow(as, ir)) {
+    /* Rejoined to pow(). */
+  } else {  /* Handle x87 ops. */
+    int32_t ofs = sps_scale(ir->s);  /* Use spill slot or temp slots. */
+    Reg dest = ir->r;
+    if (ra_hasreg(dest)) {
+      ra_free(as, dest);
+      ra_modified(as, dest);
+      emit_rmro(as, XMM_MOVRM(as), dest, RID_ESP, ofs);
+    }
+    emit_rmro(as, XO_FSTPq, XOg_FSTPq, RID_ESP, ofs);
+    switch (fpm) {  /* st0 = lj_vm_*(st0) */
+    case IRFPM_EXP: emit_call(as, lj_vm_exp_x87); break;
+    case IRFPM_EXP2: emit_call(as, lj_vm_exp2_x87); break;
+    case IRFPM_SIN: emit_x87op(as, XI_FSIN); break;
+    case IRFPM_COS: emit_x87op(as, XI_FCOS); break;
+    case IRFPM_TAN: emit_x87op(as, XI_FPOP); emit_x87op(as, XI_FPTAN); break;
+    case IRFPM_LOG: case IRFPM_LOG2: case IRFPM_LOG10:
+      /* Note: the use of fyl2xp1 would be pointless here. When computing
+      ** log(1.0+eps) the precision is already lost after 1.0 is added.
+      ** Subtracting 1.0 won't recover it. OTOH math.log1p would make sense.
+      */
+      emit_x87op(as, XI_FYL2X); break;
+    case IRFPM_OTHER:
+      switch (ir->o) {
+      case IR_ATAN2:
+	emit_x87op(as, XI_FPATAN); asm_x87load(as, ir->op2); break;
+      case IR_LDEXP:
+	emit_x87op(as, XI_FPOP1); emit_x87op(as, XI_FSCALE); break;
+      default: lua_assert(0); break;
+      }
+      break;
+    default: lua_assert(0); break;
+    }
+    asm_x87load(as, ir->op1);
+    switch (fpm) {
+    case IRFPM_LOG: emit_x87op(as, XI_FLDLN2); break;
+    case IRFPM_LOG2: emit_x87op(as, XI_FLD1); break;
+    case IRFPM_LOG10: emit_x87op(as, XI_FLDLG2); break;
+    case IRFPM_OTHER:
+      if (ir->o == IR_LDEXP) asm_x87load(as, ir->op2);
+      break;
+    default: break;
+    }
+  }
+}
+
+static void asm_fppowi(ASMState *as, IRIns *ir)
+{
+  /* The modified regs must match with the *.dasc implementation. */
+  RegSet drop = RSET_RANGE(RID_XMM0, RID_XMM1+1)|RID2RSET(RID_EAX);
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  ra_destreg(as, ir, RID_XMM0);
+  emit_call(as, lj_vm_powi_sse);
+  ra_left(as, RID_XMM0, ir->op1);
+  ra_left(as, RID_EAX, ir->op2);
+}
+
+#if LJ_64 && LJ_HASFFI
+static void asm_arith64(ASMState *as, IRIns *ir, IRCallID id)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+#endif
+
+static void asm_intmod(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_vm_modi];
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+static int asm_swapops(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1);
+  IRIns *irr = IR(ir->op2);
+  lua_assert(ra_noreg(irr->r));
+  if (!irm_iscomm(lj_ir_mode[ir->o]))
+    return 0;  /* Can't swap non-commutative operations. */
+  if (irref_isk(ir->op2))
+    return 0;  /* Don't swap constants to the left. */
+  if (ra_hasreg(irl->r))
+    return 1;  /* Swap if left already has a register. */
+  if (ra_samehint(ir->r, irr->r))
+    return 1;  /* Swap if dest and right have matching hints. */
+  if (as->curins > as->loopref) {  /* In variant part? */
+    if (ir->op2 < as->loopref && !irt_isphi(irr->t))
+      return 0;  /* Keep invariants on the right. */
+    if (ir->op1 < as->loopref && !irt_isphi(irl->t))
+      return 1;  /* Swap invariants to the right. */
+  }
+  if (opisfusableload(irl->o))
+    return 1;  /* Swap fusable loads to the right. */
+  return 0;  /* Otherwise don't swap. */
+}
+
+static void asm_fparith(ASMState *as, IRIns *ir, x86Op xo)
+{
+  IRRef lref = ir->op1;
+  IRRef rref = ir->op2;
+  RegSet allow = RSET_FPR;
+  Reg dest;
+  Reg right = IR(rref)->r;
+  if (ra_hasreg(right)) {
+    rset_clear(allow, right);
+    ra_noweak(as, right);
+  }
+  dest = ra_dest(as, ir, allow);
+  if (lref == rref) {
+    right = dest;
+  } else if (ra_noreg(right)) {
+    if (asm_swapops(as, ir)) {
+      IRRef tmp = lref; lref = rref; rref = tmp;
+    }
+    right = asm_fuseload(as, rref, rset_clear(allow, dest));
+  }
+  emit_mrm(as, xo, dest, right);
+  ra_left(as, dest, lref);
+}
+
+static void asm_intarith(ASMState *as, IRIns *ir, x86Arith xa)
+{
+  IRRef lref = ir->op1;
+  IRRef rref = ir->op2;
+  RegSet allow = RSET_GPR;
+  Reg dest, right;
+  int32_t k = 0;
+  if (as->flagmcp == as->mcp) {  /* Drop test r,r instruction. */
+    as->flagmcp = NULL;
+    as->mcp += (LJ_64 && *as->mcp < XI_TESTb) ? 3 : 2;
+  }
+  right = IR(rref)->r;
+  if (ra_hasreg(right)) {
+    rset_clear(allow, right);
+    ra_noweak(as, right);
+  }
+  dest = ra_dest(as, ir, allow);
+  if (lref == rref) {
+    right = dest;
+  } else if (ra_noreg(right) && !asm_isk32(as, rref, &k)) {
+    if (asm_swapops(as, ir)) {
+      IRRef tmp = lref; lref = rref; rref = tmp;
+    }
+    right = asm_fuseloadm(as, rref, rset_clear(allow, dest), irt_is64(ir->t));
+  }
+  if (irt_isguard(ir->t))  /* For IR_ADDOV etc. */
+    asm_guardcc(as, CC_O);
+  if (xa != XOg_X_IMUL) {
+    if (ra_hasreg(right))
+      emit_mrm(as, XO_ARITH(xa), REX_64IR(ir, dest), right);
+    else
+      emit_gri(as, XG_ARITHi(xa), REX_64IR(ir, dest), k);
+  } else if (ra_hasreg(right)) {  /* IMUL r, mrm. */
+    emit_mrm(as, XO_IMUL, REX_64IR(ir, dest), right);
+  } else {  /* IMUL r, r, k. */
+    /* NYI: use lea/shl/add/sub (FOLD only does 2^k) depending on CPU. */
+    Reg left = asm_fuseloadm(as, lref, RSET_GPR, irt_is64(ir->t));
+    x86Op xo;
+    if (checki8(k)) { emit_i8(as, k); xo = XO_IMULi8;
+    } else { emit_i32(as, k); xo = XO_IMULi; }
+    emit_mrm(as, xo, REX_64IR(ir, dest), left);
+    return;
+  }
+  ra_left(as, dest, lref);
+}
+
+/* LEA is really a 4-operand ADD with an independent destination register,
+** up to two source registers and an immediate. One register can be scaled
+** by 1, 2, 4 or 8. This can be used to avoid moves or to fuse several
+** instructions.
+**
+** Currently only a few common cases are supported:
+** - 3-operand ADD:    y = a+b; y = a+k   with a and b already allocated
+** - Left ADD fusion:  y = (a+b)+k; y = (a+k)+b
+** - Right ADD fusion: y = a+(b+k)
+** The ommited variants have already been reduced by FOLD.
+**
+** There are more fusion opportunities, like gathering shifts or joining
+** common references. But these are probably not worth the trouble, since
+** array indexing is not decomposed and already makes use of all fields
+** of the ModRM operand.
+*/
+static int asm_lea(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1);
+  IRIns *irr = IR(ir->op2);
+  RegSet allow = RSET_GPR;
+  Reg dest;
+  as->mrm.base = as->mrm.idx = RID_NONE;
+  as->mrm.scale = XM_SCALE1;
+  as->mrm.ofs = 0;
+  if (ra_hasreg(irl->r)) {
+    rset_clear(allow, irl->r);
+    ra_noweak(as, irl->r);
+    as->mrm.base = irl->r;
+    if (irref_isk(ir->op2) || ra_hasreg(irr->r)) {
+      /* The PHI renaming logic does a better job in some cases. */
+      if (ra_hasreg(ir->r) &&
+	  ((irt_isphi(irl->t) && as->phireg[ir->r] == ir->op1) ||
+	   (irt_isphi(irr->t) && as->phireg[ir->r] == ir->op2)))
+	return 0;
+      if (irref_isk(ir->op2)) {
+	as->mrm.ofs = irr->i;
+      } else {
+	rset_clear(allow, irr->r);
+	ra_noweak(as, irr->r);
+	as->mrm.idx = irr->r;
+      }
+    } else if (irr->o == IR_ADD && mayfuse(as, ir->op2) &&
+	       irref_isk(irr->op2)) {
+      Reg idx = ra_alloc1(as, irr->op1, allow);
+      rset_clear(allow, idx);
+      as->mrm.idx = (uint8_t)idx;
+      as->mrm.ofs = IR(irr->op2)->i;
+    } else {
+      return 0;
+    }
+  } else if (ir->op1 != ir->op2 && irl->o == IR_ADD && mayfuse(as, ir->op1) &&
+	     (irref_isk(ir->op2) || irref_isk(irl->op2))) {
+    Reg idx, base = ra_alloc1(as, irl->op1, allow);
+    rset_clear(allow, base);
+    as->mrm.base = (uint8_t)base;
+    if (irref_isk(ir->op2)) {
+      as->mrm.ofs = irr->i;
+      idx = ra_alloc1(as, irl->op2, allow);
+    } else {
+      as->mrm.ofs = IR(irl->op2)->i;
+      idx = ra_alloc1(as, ir->op2, allow);
+    }
+    rset_clear(allow, idx);
+    as->mrm.idx = (uint8_t)idx;
+  } else {
+    return 0;
+  }
+  dest = ra_dest(as, ir, allow);
+  emit_mrm(as, XO_LEA, dest, RID_MRM);
+  return 1;  /* Success. */
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_ADDSD);
+  else if ((as->flags & JIT_F_LEA_AGU) || as->flagmcp == as->mcp ||
+	   irt_is64(ir->t) || !asm_lea(as, ir))
+    asm_intarith(as, ir, XOg_ADD);
+}
+
+static void asm_neg_not(ASMState *as, IRIns *ir, x86Group3 xg)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  emit_rr(as, XO_GROUP3, REX_64IR(ir, xg), dest);
+  ra_left(as, dest, ir->op1);
+}
+
+static void asm_min_max(ASMState *as, IRIns *ir, int cc)
+{
+  Reg right, dest = ra_dest(as, ir, RSET_GPR);
+  IRRef lref = ir->op1, rref = ir->op2;
+  if (irref_isk(rref)) { lref = rref; rref = ir->op1; }
+  right = ra_alloc1(as, rref, rset_exclude(RSET_GPR, dest));
+  emit_rr(as, XO_CMOV + (cc<<24), REX_64IR(ir, dest), right);
+  emit_rr(as, XO_CMP, REX_64IR(ir, dest), right);
+  ra_left(as, dest, lref);
+}
+
+static void asm_bitswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  as->mcp = emit_op(XO_BSWAP + ((dest&7) << 24),
+		    REX_64IR(ir, 0), dest, 0, as->mcp, 1);
+  ra_left(as, dest, ir->op1);
+}
+
+static void asm_bitshift(ASMState *as, IRIns *ir, x86Shift xs)
+{
+  IRRef rref = ir->op2;
+  IRIns *irr = IR(rref);
+  Reg dest;
+  if (irref_isk(rref)) {  /* Constant shifts. */
+    int shift;
+    dest = ra_dest(as, ir, RSET_GPR);
+    shift = irr->i & (irt_is64(ir->t) ? 63 : 31);
+    switch (shift) {
+    case 0: break;
+    case 1: emit_rr(as, XO_SHIFT1, REX_64IR(ir, xs), dest); break;
+    default: emit_shifti(as, REX_64IR(ir, xs), dest, shift); break;
+    }
+  } else {  /* Variable shifts implicitly use register cl (i.e. ecx). */
+    Reg right;
+    dest = ra_dest(as, ir, rset_exclude(RSET_GPR, RID_ECX));
+    if (dest == RID_ECX) {
+      dest = ra_scratch(as, rset_exclude(RSET_GPR, RID_ECX));
+      emit_rr(as, XO_MOV, RID_ECX, dest);
+    }
+    right = irr->r;
+    if (ra_noreg(right))
+      right = ra_allocref(as, rref, RID2RSET(RID_ECX));
+    else if (right != RID_ECX)
+      ra_scratch(as, RID2RSET(RID_ECX));
+    emit_rr(as, XO_SHIFTcl, REX_64IR(ir, xs), dest);
+    ra_noweak(as, right);
+    if (right != RID_ECX)
+      emit_rr(as, XO_MOV, RID_ECX, right);
+  }
+  ra_left(as, dest, ir->op1);
+  /*
+  ** Note: avoid using the flags resulting from a shift or rotate!
+  ** All of them cause a partial flag stall, except for r,1 shifts
+  ** (but not rotates). And a shift count of 0 leaves the flags unmodified.
+  */
+}
+
+/* -- Comparisons --------------------------------------------------------- */
+
+/* Virtual flags for unordered FP comparisons. */
+#define VCC_U	0x1000		/* Unordered. */
+#define VCC_P	0x2000		/* Needs extra CC_P branch. */
+#define VCC_S	0x4000		/* Swap avoids CC_P branch. */
+#define VCC_PS	(VCC_P|VCC_S)
+
+/* Map of comparisons to flags. ORDER IR. */
+#define COMPFLAGS(ci, cin, cu, cf)	((ci)+((cu)<<4)+((cin)<<8)+(cf))
+static const uint16_t asm_compmap[IR_ABC+1] = {
+  /*                 signed non-eq unsigned flags */
+  /* LT  */ COMPFLAGS(CC_GE, CC_G,  CC_AE, VCC_PS),
+  /* GE  */ COMPFLAGS(CC_L,  CC_L,  CC_B,  0),
+  /* LE  */ COMPFLAGS(CC_G,  CC_G,  CC_A,  VCC_PS),
+  /* GT  */ COMPFLAGS(CC_LE, CC_L,  CC_BE, 0),
+  /* ULT */ COMPFLAGS(CC_AE, CC_A,  CC_AE, VCC_U),
+  /* UGE */ COMPFLAGS(CC_B,  CC_B,  CC_B,  VCC_U|VCC_PS),
+  /* ULE */ COMPFLAGS(CC_A,  CC_A,  CC_A,  VCC_U),
+  /* UGT */ COMPFLAGS(CC_BE, CC_B,  CC_BE, VCC_U|VCC_PS),
+  /* EQ  */ COMPFLAGS(CC_NE, CC_NE, CC_NE, VCC_P),
+  /* NE  */ COMPFLAGS(CC_E,  CC_E,  CC_E,  VCC_U|VCC_P),
+  /* ABC */ COMPFLAGS(CC_BE, CC_B,  CC_BE, VCC_U|VCC_PS)  /* Same as UGT. */
+};
+
+/* FP and integer comparisons. */
+static void asm_comp(ASMState *as, IRIns *ir, uint32_t cc)
+{
+  if (irt_isnum(ir->t)) {
+    IRRef lref = ir->op1;
+    IRRef rref = ir->op2;
+    Reg left, right;
+    MCLabel l_around;
+    /*
+    ** An extra CC_P branch is required to preserve ordered/unordered
+    ** semantics for FP comparisons. This can be avoided by swapping
+    ** the operands and inverting the condition (except for EQ and UNE).
+    ** So always try to swap if possible.
+    **
+    ** Another option would be to swap operands to achieve better memory
+    ** operand fusion. But it's unlikely that this outweighs the cost
+    ** of the extra branches.
+    */
+    if (cc & VCC_S) {  /* Swap? */
+      IRRef tmp = lref; lref = rref; rref = tmp;
+      cc ^= (VCC_PS|(5<<4));  /* A <-> B, AE <-> BE, PS <-> none */
+    }
+    left = ra_alloc1(as, lref, RSET_FPR);
+    right = asm_fuseload(as, rref, rset_exclude(RSET_FPR, left));
+    l_around = emit_label(as);
+    asm_guardcc(as, cc >> 4);
+    if (cc & VCC_P) {  /* Extra CC_P branch required? */
+      if (!(cc & VCC_U)) {
+	asm_guardcc(as, CC_P);  /* Branch to exit for ordered comparisons. */
+      } else if (l_around != as->invmcp) {
+	emit_sjcc(as, CC_P, l_around);  /* Branch around for unordered. */
+      } else {
+	/* Patched to mcloop by asm_loop_fixup. */
+	as->loopinv = 2;
+	if (as->realign)
+	  emit_sjcc(as, CC_P, as->mcp);
+	else
+	  emit_jcc(as, CC_P, as->mcp);
+      }
+    }
+    emit_mrm(as, XO_UCOMISD, left, right);
+  } else {
+    IRRef lref = ir->op1, rref = ir->op2;
+    IROp leftop = (IROp)(IR(lref)->o);
+    Reg r64 = REX_64IR(ir, 0);
+    int32_t imm = 0;
+    lua_assert(irt_is64(ir->t) || irt_isint(ir->t) ||
+	       irt_isu32(ir->t) || irt_isaddr(ir->t) || irt_isu8(ir->t));
+    /* Swap constants (only for ABC) and fusable loads to the right. */
+    if (irref_isk(lref) || (!irref_isk(rref) && opisfusableload(leftop))) {
+      if ((cc & 0xc) == 0xc) cc ^= 0x53;  /* L <-> G, LE <-> GE */
+      else if ((cc & 0xa) == 0x2) cc ^= 0x55;  /* A <-> B, AE <-> BE */
+      lref = ir->op2; rref = ir->op1;
+    }
+    if (asm_isk32(as, rref, &imm)) {
+      IRIns *irl = IR(lref);
+      /* Check wether we can use test ins. Not for unsigned, since CF=0. */
+      int usetest = (imm == 0 && (cc & 0xa) != 0x2);
+      if (usetest && irl->o == IR_BAND && irl+1 == ir && !ra_used(irl)) {
+	/* Combine comp(BAND(ref, r/imm), 0) into test mrm, r/imm. */
+	Reg right, left = RID_NONE;
+	RegSet allow = RSET_GPR;
+	if (!asm_isk32(as, irl->op2, &imm)) {
+	  left = ra_alloc1(as, irl->op2, allow);
+	  rset_clear(allow, left);
+	} else {  /* Try to Fuse IRT_I8/IRT_U8 loads, too. See below. */
+	  IRIns *irll = IR(irl->op1);
+	  if (opisfusableload((IROp)irll->o) &&
+	      (irt_isi8(irll->t) || irt_isu8(irll->t))) {
+	    IRType1 origt = irll->t;  /* Temporarily flip types. */
+	    irll->t.irt = (irll->t.irt & ~IRT_TYPE) | IRT_INT;
+	    as->curins--;  /* Skip to BAND to avoid failing in noconflict(). */
+	    right = asm_fuseload(as, irl->op1, RSET_GPR);
+	    as->curins++;
+	    irll->t = origt;
+	    if (right != RID_MRM) goto test_nofuse;
+	    /* Fusion succeeded, emit test byte mrm, imm8. */
+	    asm_guardcc(as, cc);
+	    emit_i8(as, (imm & 0xff));
+	    emit_mrm(as, XO_GROUP3b, XOg_TEST, RID_MRM);
+	    return;
+	  }
+	}
+	as->curins--;  /* Skip to BAND to avoid failing in noconflict(). */
+	right = asm_fuseloadm(as, irl->op1, allow, r64);
+	as->curins++;  /* Undo the above. */
+      test_nofuse:
+	asm_guardcc(as, cc);
+	if (ra_noreg(left)) {
+	  emit_i32(as, imm);
+	  emit_mrm(as, XO_GROUP3, r64 + XOg_TEST, right);
+	} else {
+	  emit_mrm(as, XO_TEST, r64 + left, right);
+	}
+      } else {
+	Reg left;
+	if (opisfusableload((IROp)irl->o) &&
+	    ((irt_isu8(irl->t) && checku8(imm)) ||
+	     ((irt_isi8(irl->t) || irt_isi16(irl->t)) && checki8(imm)) ||
+	     (irt_isu16(irl->t) && checku16(imm) && checki8((int16_t)imm)))) {
+	  /* Only the IRT_INT case is fused by asm_fuseload.
+	  ** The IRT_I8/IRT_U8 loads and some IRT_I16/IRT_U16 loads
+	  ** are handled here.
+	  ** Note that cmp word [mem], imm16 should not be generated,
+	  ** since it has a length-changing prefix. Compares of a word
+	  ** against a sign-extended imm8 are ok, however.
+	  */
+	  IRType1 origt = irl->t;  /* Temporarily flip types. */
+	  irl->t.irt = (irl->t.irt & ~IRT_TYPE) | IRT_INT;
+	  left = asm_fuseload(as, lref, RSET_GPR);
+	  irl->t = origt;
+	  if (left == RID_MRM) {  /* Fusion succeeded? */
+	    if (irt_isu8(irl->t) || irt_isu16(irl->t))
+	      cc >>= 4;  /* Need unsigned compare. */
+	    asm_guardcc(as, cc);
+	    emit_i8(as, imm);
+	    emit_mrm(as, (irt_isi8(origt) || irt_isu8(origt)) ?
+			 XO_ARITHib : XO_ARITHiw8, r64 + XOg_CMP, RID_MRM);
+	    return;
+	  }  /* Otherwise handle register case as usual. */
+	} else {
+	  left = asm_fuseloadm(as, lref,
+			       irt_isu8(ir->t) ? RSET_GPR8 : RSET_GPR, r64);
+	}
+	asm_guardcc(as, cc);
+	if (usetest && left != RID_MRM) {
+	  /* Use test r,r instead of cmp r,0. */
+	  x86Op xo = XO_TEST;
+	  if (irt_isu8(ir->t)) {
+	    lua_assert(ir->o == IR_EQ || ir->o == IR_NE);
+	    xo = XO_TESTb;
+	    if (!rset_test(RSET_RANGE(RID_EAX, RID_EBX+1), left)) {
+	      if (LJ_64) {
+		left |= FORCE_REX;
+	      } else {
+		emit_i32(as, 0xff);
+		emit_mrm(as, XO_GROUP3, XOg_TEST, left);
+		return;
+	      }
+	    }
+	  }
+	  emit_rr(as, xo, r64 + left, left);
+	  if (irl+1 == ir)  /* Referencing previous ins? */
+	    as->flagmcp = as->mcp;  /* Set flag to drop test r,r if possible. */
+	} else {
+	  emit_gmrmi(as, XG_ARITHi(XOg_CMP), r64 + left, imm);
+	}
+      }
+    } else {
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      Reg right = asm_fuseloadm(as, rref, rset_exclude(RSET_GPR, left), r64);
+      asm_guardcc(as, cc);
+      emit_mrm(as, XO_CMP, r64 + left, right);
+    }
+  }
+}
+
+#if LJ_32 && LJ_HASFFI
+/* 64 bit integer comparisons in 32 bit mode. */
+static void asm_comp_int64(ASMState *as, IRIns *ir)
+{
+  uint32_t cc = asm_compmap[(ir-1)->o];
+  RegSet allow = RSET_GPR;
+  Reg lefthi = RID_NONE, leftlo = RID_NONE;
+  Reg righthi = RID_NONE, rightlo = RID_NONE;
+  MCLabel l_around;
+  x86ModRM mrm;
+
+  as->curins--;  /* Skip loword ins. Avoids failing in noconflict(), too. */
+
+  /* Allocate/fuse hiword operands. */
+  if (irref_isk(ir->op2)) {
+    lefthi = asm_fuseload(as, ir->op1, allow);
+  } else {
+    lefthi = ra_alloc1(as, ir->op1, allow);
+    rset_clear(allow, lefthi);
+    righthi = asm_fuseload(as, ir->op2, allow);
+    if (righthi == RID_MRM) {
+      if (as->mrm.base != RID_NONE) rset_clear(allow, as->mrm.base);
+      if (as->mrm.idx != RID_NONE) rset_clear(allow, as->mrm.idx);
+    } else {
+      rset_clear(allow, righthi);
+    }
+  }
+  mrm = as->mrm;  /* Save state for hiword instruction. */
+
+  /* Allocate/fuse loword operands. */
+  if (irref_isk((ir-1)->op2)) {
+    leftlo = asm_fuseload(as, (ir-1)->op1, allow);
+  } else {
+    leftlo = ra_alloc1(as, (ir-1)->op1, allow);
+    rset_clear(allow, leftlo);
+    rightlo = asm_fuseload(as, (ir-1)->op2, allow);
+  }
+
+  /* All register allocations must be performed _before_ this point. */
+  l_around = emit_label(as);
+  as->invmcp = as->flagmcp = NULL;  /* Cannot use these optimizations. */
+
+  /* Loword comparison and branch. */
+  asm_guardcc(as, cc >> 4);  /* Always use unsigned compare for loword. */
+  if (ra_noreg(rightlo)) {
+    int32_t imm = IR((ir-1)->op2)->i;
+    if (imm == 0 && ((cc >> 4) & 0xa) != 0x2 && leftlo != RID_MRM)
+      emit_rr(as, XO_TEST, leftlo, leftlo);
+    else
+      emit_gmrmi(as, XG_ARITHi(XOg_CMP), leftlo, imm);
+  } else {
+    emit_mrm(as, XO_CMP, leftlo, rightlo);
+  }
+
+  /* Hiword comparison and branches. */
+  if ((cc & 15) != CC_NE)
+    emit_sjcc(as, CC_NE, l_around);  /* Hiword unequal: skip loword compare. */
+  if ((cc & 15) != CC_E)
+    asm_guardcc(as, cc >> 8);  /* Hiword compare without equality check. */
+  as->mrm = mrm;  /* Restore state. */
+  if (ra_noreg(righthi)) {
+    int32_t imm = IR(ir->op2)->i;
+    if (imm == 0 && (cc & 0xa) != 0x2 && lefthi != RID_MRM)
+      emit_rr(as, XO_TEST, lefthi, lefthi);
+    else
+      emit_gmrmi(as, XG_ARITHi(XOg_CMP), lefthi, imm);
+  } else {
+    emit_mrm(as, XO_CMP, lefthi, righthi);
+  }
+}
+#endif
+
+/* -- Support for 64 bit ops in 32 bit mode ------------------------------- */
+
+/* Hiword op of a split 64 bit op. Previous op must be the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+#if LJ_32 && LJ_HASFFI
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+  if ((ir-1)->o == IR_CONV) {  /* Conversions to/from 64 bit. */
+    if (usehi || uselo) {
+      if (irt_isfp(ir->t))
+	asm_conv_fp_int64(as, ir);
+      else
+	asm_conv_int64_fp(as, ir);
+    }
+    as->curins--;  /* Always skip the CONV. */
+    return;
+  } else if ((ir-1)->o <= IR_NE) {  /* 64 bit integer comparisons. ORDER IR. */
+    asm_comp_int64(as, ir);
+    return;
+  } else if ((ir-1)->o == IR_XSTORE) {
+    if ((ir-1)->r != RID_SINK)
+      asm_fxstore(as, ir);
+    return;
+  }
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+  case IR_ADD:
+    as->flagmcp = NULL;
+    as->curins--;
+    asm_intarith(as, ir, XOg_ADC);
+    asm_intarith(as, ir-1, XOg_ADD);
+    break;
+  case IR_SUB:
+    as->flagmcp = NULL;
+    as->curins--;
+    asm_intarith(as, ir, XOg_SBB);
+    asm_intarith(as, ir-1, XOg_SUB);
+    break;
+  case IR_NEG: {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    emit_rr(as, XO_GROUP3, XOg_NEG, dest);
+    emit_i8(as, 0);
+    emit_rr(as, XO_ARITHi8, XOg_ADC, dest);
+    ra_left(as, dest, ir->op1);
+    as->curins--;
+    asm_neg_not(as, ir-1, XOg_NEG);
+    break;
+    }
+  case IR_CALLN:
+  case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by CNEWI itself. */
+    break;
+  default: lua_assert(0); break;
+  }
+#else
+  UNUSED(as); UNUSED(ir); lua_assert(0);  /* Unused on x64 or without FFI. */
+#endif
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  /* Try to get an unused temp. register, otherwise spill/restore eax. */
+  Reg pbase = irp ? irp->r : RID_BASE;
+  Reg r = allow ? rset_pickbot(allow) : RID_EAX;
+  emit_jcc(as, CC_B, exitstub_addr(as->J, exitno));
+  if (allow == RSET_EMPTY)  /* Restore temp. register. */
+    emit_rmro(as, XO_MOV, r|REX_64, RID_ESP, 0);
+  else
+    ra_modified(as, r);
+  emit_gri(as, XG_ARITHi(XOg_CMP), r, (int32_t)(8*topslot));
+  if (ra_hasreg(pbase) && pbase != r)
+    emit_rr(as, XO_ARITH(XOg_SUB), r, pbase);
+  else
+    emit_rmro(as, XO_ARITH(XOg_SUB), r, RID_NONE,
+	      ptr2addr(&J2G(as->J)->jit_base));
+  emit_rmro(as, XO_MOV, r, r, offsetof(lua_State, maxstack));
+  emit_getgl(as, r, jit_L);
+  if (allow == RSET_EMPTY)  /* Spill temp. register. */
+    emit_rmro(as, XO_MOVto, r|REX_64, RID_ESP, 0);
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1];
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_rmro(as, XO_MOVSDto, src, RID_BASE, ofs);
+    } else {
+      lua_assert(irt_ispri(ir->t) || irt_isaddr(ir->t) ||
+		 (LJ_DUALNUM && irt_isinteger(ir->t)));
+      if (!irref_isk(ref)) {
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPR, RID_BASE));
+	emit_movtomro(as, REX_64IR(ir, src), RID_BASE, ofs);
+      } else if (!irt_ispri(ir->t)) {
+	emit_movmroi(as, RID_BASE, ofs, ir->i);
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s != 0)  /* Do not overwrite link to previous frame. */
+	  emit_movmroi(as, RID_BASE, ofs+4, (int32_t)(*flinks--));
+      } else {
+	if (!(LJ_64 && irt_islightud(ir->t)))
+	  emit_movmroi(as, RID_BASE, ofs+4, irt_toitype(ir->t));
+      }
+    }
+    checkmclim(as);
+  }
+  lua_assert(map + nent == flinks);
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcc(as, CC_NE);  /* Assumes asm_snap_prep() already done. */
+  emit_rr(as, XO_TEST, RID_RET, RID_RET);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  tmp = ra_releasetmp(as, ASMREF_TMP1);
+  emit_loada(as, tmp, J2G(as->J));
+  emit_loadi(as, ra_releasetmp(as, ASMREF_TMP2), as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_sjcc(as, CC_B, l_end);
+  emit_opgl(as, XO_ARITH(XOg_CMP), tmp, gc.threshold);
+  emit_getgl(as, tmp, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->realign) {  /* Realigned loops use short jumps. */
+    as->realign = NULL;  /* Stop another retry. */
+    lua_assert(((intptr_t)target & 15) == 0);
+    if (as->loopinv) {  /* Inverted loop branch? */
+      p -= 5;
+      p[0] = XI_JMP;
+      lua_assert(target - p >= -128);
+      p[-1] = (MCode)(target - p);  /* Patch sjcc. */
+      if (as->loopinv == 2)
+	p[-3] = (MCode)(target - p + 2);  /* Patch opt. short jp. */
+    } else {
+      lua_assert(target - p >= -128);
+      p[-1] = (MCode)(int8_t)(target - p);  /* Patch short jmp. */
+      p[-2] = XI_JMPs;
+    }
+  } else {
+    MCode *newloop;
+    p[-5] = XI_JMP;
+    if (as->loopinv) {  /* Inverted loop branch? */
+      /* asm_guardcc already inverted the jcc and patched the jmp. */
+      p -= 5;
+      newloop = target+4;
+      *(int32_t *)(p-4) = (int32_t)(target - p);  /* Patch jcc. */
+      if (as->loopinv == 2) {
+	*(int32_t *)(p-10) = (int32_t)(target - p + 6);  /* Patch opt. jp. */
+	newloop = target+8;
+      }
+    } else {  /* Otherwise just patch jmp. */
+      *(int32_t *)(p-4) = (int32_t)(target - p);
+      newloop = target+3;
+    }
+    /* Realign small loops and shorten the loop branch. */
+    if (newloop >= p - 128) {
+      as->realign = newloop;  /* Force a retry and remember alignment. */
+      as->curins = as->stopins;  /* Abort asm_trace now. */
+      as->T->nins = as->orignins;  /* Remove any added renames. */
+    }
+  }
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (r != RID_BASE)
+      emit_rr(as, XO_MOV, r, RID_BASE);
+  }
+}
+
+/* Coalesce or reload BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (irp->r == r) {
+      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+    } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
+      rset_clear(allow, irp->r);
+      emit_rr(as, XO_MOV, r, irp->r);  /* Move from coalesced parent reg. */
+    } else {
+      emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
+    }
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  /* Note: don't use as->mcp swap + emit_*: emit_op overwrites more bytes. */
+  MCode *p = as->mctop;
+  MCode *target, *q;
+  int32_t spadj = as->T->spadjust;
+  if (spadj == 0) {
+    p -= ((as->flags & JIT_F_LEA_AGU) ? 7 : 6) + (LJ_64 ? 1 : 0);
+  } else {
+    MCode *p1;
+    /* Patch stack adjustment. */
+    if (checki8(spadj)) {
+      p -= 3;
+      p1 = p-6;
+      *p1 = (MCode)spadj;
+    } else {
+      p1 = p-9;
+      *(int32_t *)p1 = spadj;
+    }
+    if ((as->flags & JIT_F_LEA_AGU)) {
+#if LJ_64
+      p1[-4] = 0x48;
+#endif
+      p1[-3] = (MCode)XI_LEA;
+      p1[-2] = MODRM(checki8(spadj) ? XM_OFS8 : XM_OFS32, RID_ESP, RID_ESP);
+      p1[-1] = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+    } else {
+#if LJ_64
+      p1[-3] = 0x48;
+#endif
+      p1[-2] = (MCode)(checki8(spadj) ? XI_ARITHi8 : XI_ARITHi);
+      p1[-1] = MODRM(XM_REG, XOg_ADD, RID_ESP);
+    }
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  *(int32_t *)(p-4) = jmprel(p, target);
+  p[-5] = XI_JMP;
+  /* Drop unused mcode tail. Fill with NOPs to make the prefetcher happy. */
+  for (q = as->mctop-1; q >= p; q--)
+    *q = XI_NOP;
+  as->mctop = p;
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop;
+  /* Realign and leave room for backwards loop branch or exit branch. */
+  if (as->realign) {
+    int i = ((int)(intptr_t)as->realign) & 15;
+    /* Fill unused mcode tail with NOPs to make the prefetcher happy. */
+    while (i-- > 0)
+      *--p = XI_NOP;
+    as->mctop = p;
+    p -= (as->loopinv ? 5 : 2);  /* Space for short/near jmp. */
+  } else {
+    p -= 5;  /* Space for exit branch (near jmp). */
+  }
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    /* Leave room for ESP adjustment: add esp, imm or lea esp, [esp+imm] */
+    as->mcp = p - (((as->flags & JIT_F_LEA_AGU) ? 7 : 6)  + (LJ_64 ? 1 : 0));
+    as->invmcp = NULL;
+  }
+}
+
+/* -- Instruction dispatch ------------------------------------------------ */
+
+/* Assemble a single instruction. */
+static void asm_ir(ASMState *as, IRIns *ir)
+{
+  switch ((IROp)ir->o) {
+  /* Miscellaneous ops. */
+  case IR_LOOP: asm_loop(as); break;
+  case IR_NOP: case IR_XBAR: lua_assert(!ra_used(ir)); break;
+  case IR_USE:
+    ra_alloc1(as, ir->op1, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR); break;
+  case IR_PHI: asm_phi(as, ir); break;
+  case IR_HIOP: asm_hiop(as, ir); break;
+  case IR_GCSTEP: asm_gcstep(as, ir); break;
+
+  /* Guarded assertions. */
+  case IR_LT: case IR_GE: case IR_LE: case IR_GT:
+  case IR_ULT: case IR_UGE: case IR_ULE: case IR_UGT:
+  case IR_EQ: case IR_NE: case IR_ABC:
+    asm_comp(as, ir, asm_compmap[ir->o]);
+    break;
+
+  case IR_RETF: asm_retf(as, ir); break;
+
+  /* Bit ops. */
+  case IR_BNOT: asm_neg_not(as, ir, XOg_NOT); break;
+  case IR_BSWAP: asm_bitswap(as, ir); break;
+
+  case IR_BAND: asm_intarith(as, ir, XOg_AND); break;
+  case IR_BOR:  asm_intarith(as, ir, XOg_OR); break;
+  case IR_BXOR: asm_intarith(as, ir, XOg_XOR); break;
+
+  case IR_BSHL: asm_bitshift(as, ir, XOg_SHL); break;
+  case IR_BSHR: asm_bitshift(as, ir, XOg_SHR); break;
+  case IR_BSAR: asm_bitshift(as, ir, XOg_SAR); break;
+  case IR_BROL: asm_bitshift(as, ir, XOg_ROL); break;
+  case IR_BROR: asm_bitshift(as, ir, XOg_ROR); break;
+
+  /* Arithmetic ops. */
+  case IR_ADD: asm_add(as, ir); break;
+  case IR_SUB:
+    if (irt_isnum(ir->t))
+      asm_fparith(as, ir, XO_SUBSD);
+    else  /* Note: no need for LEA trick here. i-k is encoded as i+(-k). */
+      asm_intarith(as, ir, XOg_SUB);
+    break;
+  case IR_MUL:
+    if (irt_isnum(ir->t))
+      asm_fparith(as, ir, XO_MULSD);
+    else
+      asm_intarith(as, ir, XOg_X_IMUL);
+    break;
+  case IR_DIV:
+#if LJ_64 && LJ_HASFFI
+    if (!irt_isnum(ir->t))
+      asm_arith64(as, ir, irt_isi64(ir->t) ? IRCALL_lj_carith_divi64 :
+					     IRCALL_lj_carith_divu64);
+    else
+#endif
+      asm_fparith(as, ir, XO_DIVSD);
+    break;
+  case IR_MOD:
+#if LJ_64 && LJ_HASFFI
+    if (!irt_isint(ir->t))
+      asm_arith64(as, ir, irt_isi64(ir->t) ? IRCALL_lj_carith_modi64 :
+					     IRCALL_lj_carith_modu64);
+    else
+#endif
+      asm_intmod(as, ir);
+    break;
+
+  case IR_NEG:
+    if (irt_isnum(ir->t))
+      asm_fparith(as, ir, XO_XORPS);
+    else
+      asm_neg_not(as, ir, XOg_NEG);
+    break;
+  case IR_ABS: asm_fparith(as, ir, XO_ANDPS); break;
+
+  case IR_MIN:
+    if (irt_isnum(ir->t))
+      asm_fparith(as, ir, XO_MINSD);
+    else
+      asm_min_max(as, ir, CC_G);
+    break;
+  case IR_MAX:
+    if (irt_isnum(ir->t))
+      asm_fparith(as, ir, XO_MAXSD);
+    else
+      asm_min_max(as, ir, CC_L);
+    break;
+
+  case IR_FPMATH: case IR_ATAN2: case IR_LDEXP:
+    asm_fpmath(as, ir);
+    break;
+  case IR_POW:
+#if LJ_64 && LJ_HASFFI
+    if (!irt_isnum(ir->t))
+      asm_arith64(as, ir, irt_isi64(ir->t) ? IRCALL_lj_carith_powi64 :
+					     IRCALL_lj_carith_powu64);
+    else
+#endif
+      asm_fppowi(as, ir);
+    break;
+
+  /* Overflow-checking arithmetic ops. Note: don't use LEA here! */
+  case IR_ADDOV: asm_intarith(as, ir, XOg_ADD); break;
+  case IR_SUBOV: asm_intarith(as, ir, XOg_SUB); break;
+  case IR_MULOV: asm_intarith(as, ir, XOg_X_IMUL); break;
+
+  /* Memory references. */
+  case IR_AREF: asm_aref(as, ir); break;
+  case IR_HREF: asm_href(as, ir); break;
+  case IR_HREFK: asm_hrefk(as, ir); break;
+  case IR_NEWREF: asm_newref(as, ir); break;
+  case IR_UREFO: case IR_UREFC: asm_uref(as, ir); break;
+  case IR_FREF: asm_fref(as, ir); break;
+  case IR_STRREF: asm_strref(as, ir); break;
+
+  /* Loads and stores. */
+  case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+    asm_ahuvload(as, ir);
+    break;
+  case IR_FLOAD: case IR_XLOAD: asm_fxload(as, ir); break;
+  case IR_SLOAD: asm_sload(as, ir); break;
+
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: asm_ahustore(as, ir); break;
+  case IR_FSTORE: case IR_XSTORE: asm_fxstore(as, ir); break;
+
+  /* Allocations. */
+  case IR_SNEW: case IR_XSNEW: asm_snew(as, ir); break;
+  case IR_TNEW: asm_tnew(as, ir); break;
+  case IR_TDUP: asm_tdup(as, ir); break;
+  case IR_CNEW: case IR_CNEWI: asm_cnew(as, ir); break;
+
+  /* Write barriers. */
+  case IR_TBAR: asm_tbar(as, ir); break;
+  case IR_OBAR: asm_obar(as, ir); break;
+
+  /* Type conversions. */
+  case IR_TOBIT: asm_tobit(as, ir); break;
+  case IR_CONV: asm_conv(as, ir); break;
+  case IR_TOSTR: asm_tostr(as, ir); break;
+  case IR_STRTO: asm_strto(as, ir); break;
+
+  /* Calls. */
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: asm_call(as, ir); break;
+  case IR_CALLXS: asm_callx(as, ir); break;
+  case IR_CARG: break;
+
+  default:
+    setintV(&as->J->errinfo, ir->o);
+    lj_trace_err_info(as->J, LJ_TRERR_NYIIR);
+    break;
+  }
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  int nslots;
+  asm_collectargs(as, ir, ci, args);
+  nslots = asm_count_call_slots(as, ci, args);
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+#if LJ_64
+  return irt_isfp(ir->t) ? REGSP_HINT(RID_FPRET) : REGSP_HINT(RID_RET);
+#else
+  return irt_isfp(ir->t) ? REGSP_INIT : REGSP_HINT(RID_RET);
+#endif
+}
+
+/* Target-specific setup. */
+static void asm_setup_target(ASMState *as)
+{
+  asm_exitstub_setup(as, as->T->nsnap);
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MSize len = T->szmcode;
+  MCode *px = exitstub_addr(J, exitno) - 6;
+  MCode *pe = p+len-6;
+  uint32_t stateaddr = u32ptr(&J2G(J)->vmstate);
+  if (len > 5 && p[len-5] == XI_JMP && p+len-6 + *(int32_t *)(p+len-4) == px)
+    *(int32_t *)(p+len-4) = jmprel(p+len, target);
+  /* Do not patch parent exit for a stack check. Skip beyond vmstate update. */
+  for (; p < pe; p++)
+    if (*(uint32_t *)(p+(LJ_64 ? 3 : 2)) == stateaddr && p[0] == XI_MOVmi) {
+      p += LJ_64 ? 11 : 10;
+      break;
+    }
+  lua_assert(p < pe);
+  for (; p < pe; p++) {
+    if ((*(uint16_t *)p & 0xf0ff) == 0x800f && p + *(int32_t *)(p+2) == px) {
+      *(int32_t *)(p+2) = jmprel(p+6, target);
+      p += 5;
+    }
+  }
+  lj_mcode_sync(T->mcode, T->mcode + T->szmcode);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/lib/luajit/src/lj_bc.c b/lib/luajit/src/lj_bc.c
new file mode 100644
index 00000000..d5d3d78d
--- /dev/null
+++ b/lib/luajit/src/lj_bc.c
@@ -0,0 +1,14 @@
+/*
+** Bytecode instruction modes.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_bc_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_bc.h"
+
+/* Bytecode offsets and bytecode instruction modes. */
+#include "lj_bcdef.h"
+
diff --git a/lib/luajit/src/lj_bc.h b/lib/luajit/src/lj_bc.h
new file mode 100644
index 00000000..1a4ade31
--- /dev/null
+++ b/lib/luajit/src/lj_bc.h
@@ -0,0 +1,261 @@
+/*
+** Bytecode instruction format.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_BC_H
+#define _LJ_BC_H
+
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* Bytecode instruction format, 32 bit wide, fields of 8 or 16 bit:
+**
+** +----+----+----+----+
+** | B  | C  | A  | OP | Format ABC
+** +----+----+----+----+
+** |    D    | A  | OP | Format AD
+** +--------------------
+** MSB               LSB
+**
+** In-memory instructions are always stored in host byte order.
+*/
+
+/* Operand ranges and related constants. */
+#define BCMAX_A		0xff
+#define BCMAX_B		0xff
+#define BCMAX_C		0xff
+#define BCMAX_D		0xffff
+#define BCBIAS_J	0x8000
+#define NO_REG		BCMAX_A
+#define NO_JMP		(~(BCPos)0)
+
+/* Macros to get instruction fields. */
+#define bc_op(i)	((BCOp)((i)&0xff))
+#define bc_a(i)		((BCReg)(((i)>>8)&0xff))
+#define bc_b(i)		((BCReg)((i)>>24))
+#define bc_c(i)		((BCReg)(((i)>>16)&0xff))
+#define bc_d(i)		((BCReg)((i)>>16))
+#define bc_j(i)		((ptrdiff_t)bc_d(i)-BCBIAS_J)
+
+/* Macros to set instruction fields. */
+#define setbc_byte(p, x, ofs) \
+  ((uint8_t *)(p))[LJ_ENDIAN_SELECT(ofs, 3-ofs)] = (uint8_t)(x)
+#define setbc_op(p, x)	setbc_byte(p, (x), 0)
+#define setbc_a(p, x)	setbc_byte(p, (x), 1)
+#define setbc_b(p, x)	setbc_byte(p, (x), 3)
+#define setbc_c(p, x)	setbc_byte(p, (x), 2)
+#define setbc_d(p, x) \
+  ((uint16_t *)(p))[LJ_ENDIAN_SELECT(1, 0)] = (uint16_t)(x)
+#define setbc_j(p, x)	setbc_d(p, (BCPos)((int32_t)(x)+BCBIAS_J))
+
+/* Macros to compose instructions. */
+#define BCINS_ABC(o, a, b, c) \
+  (((BCIns)(o))|((BCIns)(a)<<8)|((BCIns)(b)<<24)|((BCIns)(c)<<16))
+#define BCINS_AD(o, a, d) \
+  (((BCIns)(o))|((BCIns)(a)<<8)|((BCIns)(d)<<16))
+#define BCINS_AJ(o, a, j)	BCINS_AD(o, a, (BCPos)((int32_t)(j)+BCBIAS_J))
+
+/* Bytecode instruction definition. Order matters, see below.
+**
+** (name, filler, Amode, Bmode, Cmode or Dmode, metamethod)
+**
+** The opcode name suffixes specify the type for RB/RC or RD:
+** V = variable slot
+** S = string const
+** N = number const
+** P = primitive type (~itype)
+** B = unsigned byte literal
+** M = multiple args/results
+*/
+#define BCDEF(_) \
+  /* Comparison ops. ORDER OPR. */ \
+  _(ISLT,	var,	___,	var,	lt) \
+  _(ISGE,	var,	___,	var,	lt) \
+  _(ISLE,	var,	___,	var,	le) \
+  _(ISGT,	var,	___,	var,	le) \
+  \
+  _(ISEQV,	var,	___,	var,	eq) \
+  _(ISNEV,	var,	___,	var,	eq) \
+  _(ISEQS,	var,	___,	str,	eq) \
+  _(ISNES,	var,	___,	str,	eq) \
+  _(ISEQN,	var,	___,	num,	eq) \
+  _(ISNEN,	var,	___,	num,	eq) \
+  _(ISEQP,	var,	___,	pri,	eq) \
+  _(ISNEP,	var,	___,	pri,	eq) \
+  \
+  /* Unary test and copy ops. */ \
+  _(ISTC,	dst,	___,	var,	___) \
+  _(ISFC,	dst,	___,	var,	___) \
+  _(IST,	___,	___,	var,	___) \
+  _(ISF,	___,	___,	var,	___) \
+  \
+  /* Unary ops. */ \
+  _(MOV,	dst,	___,	var,	___) \
+  _(NOT,	dst,	___,	var,	___) \
+  _(UNM,	dst,	___,	var,	unm) \
+  _(LEN,	dst,	___,	var,	len) \
+  \
+  /* Binary ops. ORDER OPR. VV last, POW must be next. */ \
+  _(ADDVN,	dst,	var,	num,	add) \
+  _(SUBVN,	dst,	var,	num,	sub) \
+  _(MULVN,	dst,	var,	num,	mul) \
+  _(DIVVN,	dst,	var,	num,	div) \
+  _(MODVN,	dst,	var,	num,	mod) \
+  \
+  _(ADDNV,	dst,	var,	num,	add) \
+  _(SUBNV,	dst,	var,	num,	sub) \
+  _(MULNV,	dst,	var,	num,	mul) \
+  _(DIVNV,	dst,	var,	num,	div) \
+  _(MODNV,	dst,	var,	num,	mod) \
+  \
+  _(ADDVV,	dst,	var,	var,	add) \
+  _(SUBVV,	dst,	var,	var,	sub) \
+  _(MULVV,	dst,	var,	var,	mul) \
+  _(DIVVV,	dst,	var,	var,	div) \
+  _(MODVV,	dst,	var,	var,	mod) \
+  \
+  _(POW,	dst,	var,	var,	pow) \
+  _(CAT,	dst,	rbase,	rbase,	concat) \
+  \
+  /* Constant ops. */ \
+  _(KSTR,	dst,	___,	str,	___) \
+  _(KCDATA,	dst,	___,	cdata,	___) \
+  _(KSHORT,	dst,	___,	lits,	___) \
+  _(KNUM,	dst,	___,	num,	___) \
+  _(KPRI,	dst,	___,	pri,	___) \
+  _(KNIL,	base,	___,	base,	___) \
+  \
+  /* Upvalue and function ops. */ \
+  _(UGET,	dst,	___,	uv,	___) \
+  _(USETV,	uv,	___,	var,	___) \
+  _(USETS,	uv,	___,	str,	___) \
+  _(USETN,	uv,	___,	num,	___) \
+  _(USETP,	uv,	___,	pri,	___) \
+  _(UCLO,	rbase,	___,	jump,	___) \
+  _(FNEW,	dst,	___,	func,	gc) \
+  \
+  /* Table ops. */ \
+  _(TNEW,	dst,	___,	lit,	gc) \
+  _(TDUP,	dst,	___,	tab,	gc) \
+  _(GGET,	dst,	___,	str,	index) \
+  _(GSET,	var,	___,	str,	newindex) \
+  _(TGETV,	dst,	var,	var,	index) \
+  _(TGETS,	dst,	var,	str,	index) \
+  _(TGETB,	dst,	var,	lit,	index) \
+  _(TSETV,	var,	var,	var,	newindex) \
+  _(TSETS,	var,	var,	str,	newindex) \
+  _(TSETB,	var,	var,	lit,	newindex) \
+  _(TSETM,	base,	___,	num,	newindex) \
+  \
+  /* Calls and vararg handling. T = tail call. */ \
+  _(CALLM,	base,	lit,	lit,	call) \
+  _(CALL,	base,	lit,	lit,	call) \
+  _(CALLMT,	base,	___,	lit,	call) \
+  _(CALLT,	base,	___,	lit,	call) \
+  _(ITERC,	base,	lit,	lit,	call) \
+  _(ITERN,	base,	lit,	lit,	call) \
+  _(VARG,	base,	lit,	lit,	___) \
+  _(ISNEXT,	base,	___,	jump,	___) \
+  \
+  /* Returns. */ \
+  _(RETM,	base,	___,	lit,	___) \
+  _(RET,	rbase,	___,	lit,	___) \
+  _(RET0,	rbase,	___,	lit,	___) \
+  _(RET1,	rbase,	___,	lit,	___) \
+  \
+  /* Loops and branches. I/J = interp/JIT, I/C/L = init/call/loop. */ \
+  _(FORI,	base,	___,	jump,	___) \
+  _(JFORI,	base,	___,	jump,	___) \
+  \
+  _(FORL,	base,	___,	jump,	___) \
+  _(IFORL,	base,	___,	jump,	___) \
+  _(JFORL,	base,	___,	lit,	___) \
+  \
+  _(ITERL,	base,	___,	jump,	___) \
+  _(IITERL,	base,	___,	jump,	___) \
+  _(JITERL,	base,	___,	lit,	___) \
+  \
+  _(LOOP,	rbase,	___,	jump,	___) \
+  _(ILOOP,	rbase,	___,	jump,	___) \
+  _(JLOOP,	rbase,	___,	lit,	___) \
+  \
+  _(JMP,	rbase,	___,	jump,	___) \
+  \
+  /* Function headers. I/J = interp/JIT, F/V/C = fixarg/vararg/C func. */ \
+  _(FUNCF,	rbase,	___,	___,	___) \
+  _(IFUNCF,	rbase,	___,	___,	___) \
+  _(JFUNCF,	rbase,	___,	lit,	___) \
+  _(FUNCV,	rbase,	___,	___,	___) \
+  _(IFUNCV,	rbase,	___,	___,	___) \
+  _(JFUNCV,	rbase,	___,	lit,	___) \
+  _(FUNCC,	rbase,	___,	___,	___) \
+  _(FUNCCW,	rbase,	___,	___,	___)
+
+/* Bytecode opcode numbers. */
+typedef enum {
+#define BCENUM(name, ma, mb, mc, mt)	BC_##name,
+BCDEF(BCENUM)
+#undef BCENUM
+  BC__MAX
+} BCOp;
+
+LJ_STATIC_ASSERT((int)BC_ISEQV+1 == (int)BC_ISNEV);
+LJ_STATIC_ASSERT(((int)BC_ISEQV^1) == (int)BC_ISNEV);
+LJ_STATIC_ASSERT(((int)BC_ISEQS^1) == (int)BC_ISNES);
+LJ_STATIC_ASSERT(((int)BC_ISEQN^1) == (int)BC_ISNEN);
+LJ_STATIC_ASSERT(((int)BC_ISEQP^1) == (int)BC_ISNEP);
+LJ_STATIC_ASSERT(((int)BC_ISLT^1) == (int)BC_ISGE);
+LJ_STATIC_ASSERT(((int)BC_ISLE^1) == (int)BC_ISGT);
+LJ_STATIC_ASSERT(((int)BC_ISLT^3) == (int)BC_ISGT);
+LJ_STATIC_ASSERT((int)BC_IST-(int)BC_ISTC == (int)BC_ISF-(int)BC_ISFC);
+LJ_STATIC_ASSERT((int)BC_CALLT-(int)BC_CALL == (int)BC_CALLMT-(int)BC_CALLM);
+LJ_STATIC_ASSERT((int)BC_CALLMT + 1 == (int)BC_CALLT);
+LJ_STATIC_ASSERT((int)BC_RETM + 1 == (int)BC_RET);
+LJ_STATIC_ASSERT((int)BC_FORL + 1 == (int)BC_IFORL);
+LJ_STATIC_ASSERT((int)BC_FORL + 2 == (int)BC_JFORL);
+LJ_STATIC_ASSERT((int)BC_ITERL + 1 == (int)BC_IITERL);
+LJ_STATIC_ASSERT((int)BC_ITERL + 2 == (int)BC_JITERL);
+LJ_STATIC_ASSERT((int)BC_LOOP + 1 == (int)BC_ILOOP);
+LJ_STATIC_ASSERT((int)BC_LOOP + 2 == (int)BC_JLOOP);
+LJ_STATIC_ASSERT((int)BC_FUNCF + 1 == (int)BC_IFUNCF);
+LJ_STATIC_ASSERT((int)BC_FUNCF + 2 == (int)BC_JFUNCF);
+LJ_STATIC_ASSERT((int)BC_FUNCV + 1 == (int)BC_IFUNCV);
+LJ_STATIC_ASSERT((int)BC_FUNCV + 2 == (int)BC_JFUNCV);
+
+/* This solves a circular dependency problem, change as needed. */
+#define FF_next_N	4
+
+/* Stack slots used by FORI/FORL, relative to operand A. */
+enum {
+  FORL_IDX, FORL_STOP, FORL_STEP, FORL_EXT
+};
+
+/* Bytecode operand modes. ORDER BCMode */
+typedef enum {
+  BCMnone, BCMdst, BCMbase, BCMvar, BCMrbase, BCMuv,  /* Mode A must be <= 7 */
+  BCMlit, BCMlits, BCMpri, BCMnum, BCMstr, BCMtab, BCMfunc, BCMjump, BCMcdata,
+  BCM_max
+} BCMode;
+#define BCM___		BCMnone
+
+#define bcmode_a(op)	((BCMode)(lj_bc_mode[op] & 7))
+#define bcmode_b(op)	((BCMode)((lj_bc_mode[op]>>3) & 15))
+#define bcmode_c(op)	((BCMode)((lj_bc_mode[op]>>7) & 15))
+#define bcmode_d(op)	bcmode_c(op)
+#define bcmode_hasd(op)	((lj_bc_mode[op] & (15<<3)) == (BCMnone<<3))
+#define bcmode_mm(op)	((MMS)(lj_bc_mode[op]>>11))
+
+#define BCMODE(name, ma, mb, mc, mm) \
+  (BCM##ma|(BCM##mb<<3)|(BCM##mc<<7)|(MM_##mm<<11)),
+#define BCMODE_FF	0
+
+static LJ_AINLINE int bc_isret(BCOp op)
+{
+  return (op == BC_RETM || op == BC_RET || op == BC_RET0 || op == BC_RET1);
+}
+
+LJ_DATA const uint16_t lj_bc_mode[];
+LJ_DATA const uint16_t lj_bc_ofs[];
+
+#endif
diff --git a/lib/luajit/src/lj_bcdump.h b/lib/luajit/src/lj_bcdump.h
new file mode 100644
index 00000000..77a789e9
--- /dev/null
+++ b/lib/luajit/src/lj_bcdump.h
@@ -0,0 +1,66 @@
+/*
+** Bytecode dump definitions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_BCDUMP_H
+#define _LJ_BCDUMP_H
+
+#include "lj_obj.h"
+#include "lj_lex.h"
+
+/* -- Bytecode dump format ------------------------------------------------ */
+
+/*
+** dump   = header proto+ 0U
+** header = ESC 'L' 'J' versionB flagsU [namelenU nameB*]
+** proto  = lengthU pdata
+** pdata  = phead bcinsW* uvdataH* kgc* knum* [debugB*]
+** phead  = flagsB numparamsB framesizeB numuvB numkgcU numknU numbcU
+**          [debuglenU [firstlineU numlineU]]
+** kgc    = kgctypeU { ktab | (loU hiU) | (rloU rhiU iloU ihiU) | strB* }
+** knum   = intU0 | (loU1 hiU)
+** ktab   = narrayU nhashU karray* khash*
+** karray = ktabk
+** khash  = ktabk ktabk
+** ktabk  = ktabtypeU { intU | (loU hiU) | strB* }
+**
+** B = 8 bit, H = 16 bit, W = 32 bit, U = ULEB128 of W, U0/U1 = ULEB128 of W+1
+*/
+
+/* Bytecode dump header. */
+#define BCDUMP_HEAD1		0x1b
+#define BCDUMP_HEAD2		0x4c
+#define BCDUMP_HEAD3		0x4a
+
+/* If you perform *any* kind of private modifications to the bytecode itself
+** or to the dump format, you *must* set BCDUMP_VERSION to 0x80 or higher.
+*/
+#define BCDUMP_VERSION		1
+
+/* Compatibility flags. */
+#define BCDUMP_F_BE		0x01
+#define BCDUMP_F_STRIP		0x02
+#define BCDUMP_F_FFI		0x04
+
+#define BCDUMP_F_KNOWN		(BCDUMP_F_FFI*2-1)
+
+/* Type codes for the GC constants of a prototype. Plus length for strings. */
+enum {
+  BCDUMP_KGC_CHILD, BCDUMP_KGC_TAB, BCDUMP_KGC_I64, BCDUMP_KGC_U64,
+  BCDUMP_KGC_COMPLEX, BCDUMP_KGC_STR
+};
+
+/* Type codes for the keys/values of a constant table. */
+enum {
+  BCDUMP_KTAB_NIL, BCDUMP_KTAB_FALSE, BCDUMP_KTAB_TRUE,
+  BCDUMP_KTAB_INT, BCDUMP_KTAB_NUM, BCDUMP_KTAB_STR
+};
+
+/* -- Bytecode reader/writer ---------------------------------------------- */
+
+LJ_FUNC int lj_bcwrite(lua_State *L, GCproto *pt, lua_Writer writer,
+		       void *data, int strip);
+LJ_FUNC GCproto *lj_bcread(LexState *ls);
+
+#endif
diff --git a/lib/luajit/src/lj_bcread.c b/lib/luajit/src/lj_bcread.c
new file mode 100644
index 00000000..c0baece4
--- /dev/null
+++ b/lib/luajit/src/lj_bcread.c
@@ -0,0 +1,476 @@
+/*
+** Bytecode reader.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_bcread_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lualib.h"
+#endif
+#include "lj_lex.h"
+#include "lj_bcdump.h"
+#include "lj_state.h"
+
+/* Reuse some lexer fields for our own purposes. */
+#define bcread_flags(ls)	ls->level
+#define bcread_swap(ls) \
+  ((bcread_flags(ls) & BCDUMP_F_BE) != LJ_BE*BCDUMP_F_BE)
+#define bcread_oldtop(L, ls)	restorestack(L, ls->lastline)
+#define bcread_savetop(L, ls, top) \
+  ls->lastline = (BCLine)savestack(L, (top))
+
+/* -- Input buffer handling ----------------------------------------------- */
+
+/* Throw reader error. */
+static LJ_NOINLINE void bcread_error(LexState *ls, ErrMsg em)
+{
+  lua_State *L = ls->L;
+  const char *name = ls->chunkarg;
+  if (*name == BCDUMP_HEAD1) name = "(binary)";
+  else if (*name == '@' || *name == '=') name++;
+  lj_str_pushf(L, "%s: %s", name, err2msg(em));
+  lj_err_throw(L, LUA_ERRSYNTAX);
+}
+
+/* Resize input buffer. */
+static void bcread_resize(LexState *ls, MSize len)
+{
+  if (ls->sb.sz < len) {
+    MSize sz = ls->sb.sz * 2;
+    while (len > sz) sz = sz * 2;
+    lj_str_resizebuf(ls->L, &ls->sb, sz);
+    /* Caveat: this may change ls->sb.buf which may affect ls->p. */
+  }
+}
+
+/* Refill buffer if needed. */
+static LJ_NOINLINE void bcread_fill(LexState *ls, MSize len, int need)
+{
+  lua_assert(len != 0);
+  if (len > LJ_MAX_MEM || ls->current < 0)
+    bcread_error(ls, LJ_ERR_BCBAD);
+  do {
+    const char *buf;
+    size_t size;
+    if (ls->n) {  /* Copy remainder to buffer. */
+      if (ls->sb.n) {  /* Move down in buffer. */
+	lua_assert(ls->p + ls->n == ls->sb.buf + ls->sb.n);
+	if (ls->n != ls->sb.n)
+	  memmove(ls->sb.buf, ls->p, ls->n);
+      } else {  /* Copy from buffer provided by reader. */
+	bcread_resize(ls, len);
+	memcpy(ls->sb.buf, ls->p, ls->n);
+      }
+      ls->p = ls->sb.buf;
+    }
+    ls->sb.n = ls->n;
+    buf = ls->rfunc(ls->L, ls->rdata, &size);  /* Get more data from reader. */
+    if (buf == NULL || size == 0) {  /* EOF? */
+      if (need) bcread_error(ls, LJ_ERR_BCBAD);
+      ls->current = -1;  /* Only bad if we get called again. */
+      break;
+    }
+    if (ls->sb.n) {  /* Append to buffer. */
+      MSize n = ls->sb.n + (MSize)size;
+      bcread_resize(ls, n < len ? len : n);
+      memcpy(ls->sb.buf + ls->sb.n, buf, size);
+      ls->n = ls->sb.n = n;
+      ls->p = ls->sb.buf;
+    } else {  /* Return buffer provided by reader. */
+      ls->n = (MSize)size;
+      ls->p = buf;
+    }
+  } while (ls->n < len);
+}
+
+/* Need a certain number of bytes. */
+static LJ_AINLINE void bcread_need(LexState *ls, MSize len)
+{
+  if (LJ_UNLIKELY(ls->n < len))
+    bcread_fill(ls, len, 1);
+}
+
+/* Want to read up to a certain number of bytes, but may need less. */
+static LJ_AINLINE void bcread_want(LexState *ls, MSize len)
+{
+  if (LJ_UNLIKELY(ls->n < len))
+    bcread_fill(ls, len, 0);
+}
+
+#define bcread_dec(ls)		check_exp(ls->n > 0, ls->n--)
+#define bcread_consume(ls, len)	check_exp(ls->n >= (len), ls->n -= (len))
+
+/* Return memory block from buffer. */
+static uint8_t *bcread_mem(LexState *ls, MSize len)
+{
+  uint8_t *p = (uint8_t *)ls->p;
+  bcread_consume(ls, len);
+  ls->p = (char *)p + len;
+  return p;
+}
+
+/* Copy memory block from buffer. */
+static void bcread_block(LexState *ls, void *q, MSize len)
+{
+  memcpy(q, bcread_mem(ls, len), len);
+}
+
+/* Read byte from buffer. */
+static LJ_AINLINE uint32_t bcread_byte(LexState *ls)
+{
+  bcread_dec(ls);
+  return (uint32_t)(uint8_t)*ls->p++;
+}
+
+/* Read ULEB128 value from buffer. */
+static uint32_t bcread_uleb128(LexState *ls)
+{
+  const uint8_t *p = (const uint8_t *)ls->p;
+  uint32_t v = *p++;
+  if (LJ_UNLIKELY(v >= 0x80)) {
+    int sh = 0;
+    v &= 0x7f;
+    do {
+     v |= ((*p & 0x7f) << (sh += 7));
+     bcread_dec(ls);
+   } while (*p++ >= 0x80);
+  }
+  bcread_dec(ls);
+  ls->p = (char *)p;
+  return v;
+}
+
+/* Read top 32 bits of 33 bit ULEB128 value from buffer. */
+static uint32_t bcread_uleb128_33(LexState *ls)
+{
+  const uint8_t *p = (const uint8_t *)ls->p;
+  uint32_t v = (*p++ >> 1);
+  if (LJ_UNLIKELY(v >= 0x40)) {
+    int sh = -1;
+    v &= 0x3f;
+    do {
+     v |= ((*p & 0x7f) << (sh += 7));
+     bcread_dec(ls);
+   } while (*p++ >= 0x80);
+  }
+  bcread_dec(ls);
+  ls->p = (char *)p;
+  return v;
+}
+
+/* -- Bytecode reader ----------------------------------------------------- */
+
+/* Read debug info of a prototype. */
+static void bcread_dbg(LexState *ls, GCproto *pt, MSize sizedbg)
+{
+  void *lineinfo = (void *)proto_lineinfo(pt);
+  bcread_block(ls, lineinfo, sizedbg);
+  /* Swap lineinfo if the endianess differs. */
+  if (bcread_swap(ls) && pt->numline >= 256) {
+    MSize i, n = pt->sizebc-1;
+    if (pt->numline < 65536) {
+      uint16_t *p = (uint16_t *)lineinfo;
+      for (i = 0; i < n; i++) p[i] = (uint16_t)((p[i] >> 8)|(p[i] << 8));
+    } else {
+      uint32_t *p = (uint32_t *)lineinfo;
+      for (i = 0; i < n; i++) p[i] = lj_bswap(p[i]);
+    }
+  }
+}
+
+/* Find pointer to varinfo. */
+static const void *bcread_varinfo(GCproto *pt)
+{
+  const uint8_t *p = proto_uvinfo(pt);
+  MSize n = pt->sizeuv;
+  if (n) while (*p++ || --n) ;
+  return p;
+}
+
+/* Read a single constant key/value of a template table. */
+static void bcread_ktabk(LexState *ls, TValue *o)
+{
+  MSize tp = bcread_uleb128(ls);
+  if (tp >= BCDUMP_KTAB_STR) {
+    MSize len = tp - BCDUMP_KTAB_STR;
+    const char *p = (const char *)bcread_mem(ls, len);
+    setstrV(ls->L, o, lj_str_new(ls->L, p, len));
+  } else if (tp == BCDUMP_KTAB_INT) {
+    setintV(o, (int32_t)bcread_uleb128(ls));
+  } else if (tp == BCDUMP_KTAB_NUM) {
+    o->u32.lo = bcread_uleb128(ls);
+    o->u32.hi = bcread_uleb128(ls);
+  } else {
+    lua_assert(tp <= BCDUMP_KTAB_TRUE);
+    setitype(o, ~tp);
+  }
+}
+
+/* Read a template table. */
+static GCtab *bcread_ktab(LexState *ls)
+{
+  MSize narray = bcread_uleb128(ls);
+  MSize nhash = bcread_uleb128(ls);
+  GCtab *t = lj_tab_new(ls->L, narray, hsize2hbits(nhash));
+  if (narray) {  /* Read array entries. */
+    MSize i;
+    TValue *o = tvref(t->array);
+    for (i = 0; i < narray; i++, o++)
+      bcread_ktabk(ls, o);
+  }
+  if (nhash) {  /* Read hash entries. */
+    MSize i;
+    for (i = 0; i < nhash; i++) {
+      TValue key;
+      bcread_ktabk(ls, &key);
+      lua_assert(!tvisnil(&key));
+      bcread_ktabk(ls, lj_tab_set(ls->L, t, &key));
+    }
+  }
+  return t;
+}
+
+/* Read GC constants of a prototype. */
+static void bcread_kgc(LexState *ls, GCproto *pt, MSize sizekgc)
+{
+  MSize i;
+  GCRef *kr = mref(pt->k, GCRef) - (ptrdiff_t)sizekgc;
+  for (i = 0; i < sizekgc; i++, kr++) {
+    MSize tp = bcread_uleb128(ls);
+    if (tp >= BCDUMP_KGC_STR) {
+      MSize len = tp - BCDUMP_KGC_STR;
+      const char *p = (const char *)bcread_mem(ls, len);
+      setgcref(*kr, obj2gco(lj_str_new(ls->L, p, len)));
+    } else if (tp == BCDUMP_KGC_TAB) {
+      setgcref(*kr, obj2gco(bcread_ktab(ls)));
+#if LJ_HASFFI
+    } else if (tp != BCDUMP_KGC_CHILD) {
+      CTypeID id = tp == BCDUMP_KGC_COMPLEX ? CTID_COMPLEX_DOUBLE :
+		   tp == BCDUMP_KGC_I64 ? CTID_INT64 : CTID_UINT64;
+      CTSize sz = tp == BCDUMP_KGC_COMPLEX ? 16 : 8;
+      GCcdata *cd = lj_cdata_new_(ls->L, id, sz);
+      TValue *p = (TValue *)cdataptr(cd);
+      setgcref(*kr, obj2gco(cd));
+      p[0].u32.lo = bcread_uleb128(ls);
+      p[0].u32.hi = bcread_uleb128(ls);
+      if (tp == BCDUMP_KGC_COMPLEX) {
+	p[1].u32.lo = bcread_uleb128(ls);
+	p[1].u32.hi = bcread_uleb128(ls);
+      }
+#endif
+    } else {
+      lua_State *L = ls->L;
+      lua_assert(tp == BCDUMP_KGC_CHILD);
+      if (L->top <= bcread_oldtop(L, ls))  /* Stack underflow? */
+	bcread_error(ls, LJ_ERR_BCBAD);
+      L->top--;
+      setgcref(*kr, obj2gco(protoV(L->top)));
+    }
+  }
+}
+
+/* Read number constants of a prototype. */
+static void bcread_knum(LexState *ls, GCproto *pt, MSize sizekn)
+{
+  MSize i;
+  TValue *o = mref(pt->k, TValue);
+  for (i = 0; i < sizekn; i++, o++) {
+    int isnum = (ls->p[0] & 1);
+    uint32_t lo = bcread_uleb128_33(ls);
+    if (isnum) {
+      o->u32.lo = lo;
+      o->u32.hi = bcread_uleb128(ls);
+    } else {
+      setintV(o, lo);
+    }
+  }
+}
+
+/* Read bytecode instructions. */
+static void bcread_bytecode(LexState *ls, GCproto *pt, MSize sizebc)
+{
+  BCIns *bc = proto_bc(pt);
+  bc[0] = BCINS_AD((pt->flags & PROTO_VARARG) ? BC_FUNCV : BC_FUNCF,
+		   pt->framesize, 0);
+  bcread_block(ls, bc+1, (sizebc-1)*(MSize)sizeof(BCIns));
+  /* Swap bytecode instructions if the endianess differs. */
+  if (bcread_swap(ls)) {
+    MSize i;
+    for (i = 1; i < sizebc; i++) bc[i] = lj_bswap(bc[i]);
+  }
+}
+
+/* Read upvalue refs. */
+static void bcread_uv(LexState *ls, GCproto *pt, MSize sizeuv)
+{
+  if (sizeuv) {
+    uint16_t *uv = proto_uv(pt);
+    bcread_block(ls, uv, sizeuv*2);
+    /* Swap upvalue refs if the endianess differs. */
+    if (bcread_swap(ls)) {
+      MSize i;
+      for (i = 0; i < sizeuv; i++)
+	uv[i] = (uint16_t)((uv[i] >> 8)|(uv[i] << 8));
+    }
+  }
+}
+
+/* Read a prototype. */
+static GCproto *bcread_proto(LexState *ls)
+{
+  GCproto *pt;
+  MSize framesize, numparams, flags, sizeuv, sizekgc, sizekn, sizebc, sizept;
+  MSize ofsk, ofsuv, ofsdbg;
+  MSize sizedbg = 0;
+  BCLine firstline = 0, numline = 0;
+  MSize len, startn;
+
+  /* Read length. */
+  if (ls->n > 0 && ls->p[0] == 0) {  /* Shortcut EOF. */
+    ls->n--; ls->p++;
+    return NULL;
+  }
+  bcread_want(ls, 5);
+  len = bcread_uleb128(ls);
+  if (!len) return NULL;  /* EOF */
+  bcread_need(ls, len);
+  startn = ls->n;
+
+  /* Read prototype header. */
+  flags = bcread_byte(ls);
+  numparams = bcread_byte(ls);
+  framesize = bcread_byte(ls);
+  sizeuv = bcread_byte(ls);
+  sizekgc = bcread_uleb128(ls);
+  sizekn = bcread_uleb128(ls);
+  sizebc = bcread_uleb128(ls) + 1;
+  if (!(bcread_flags(ls) & BCDUMP_F_STRIP)) {
+    sizedbg = bcread_uleb128(ls);
+    if (sizedbg) {
+      firstline = bcread_uleb128(ls);
+      numline = bcread_uleb128(ls);
+    }
+  }
+
+  /* Calculate total size of prototype including all colocated arrays. */
+  sizept = (MSize)sizeof(GCproto) +
+	   sizebc*(MSize)sizeof(BCIns) +
+	   sizekgc*(MSize)sizeof(GCRef);
+  sizept = (sizept + (MSize)sizeof(TValue)-1) & ~((MSize)sizeof(TValue)-1);
+  ofsk = sizept; sizept += sizekn*(MSize)sizeof(TValue);
+  ofsuv = sizept; sizept += ((sizeuv+1)&~1)*2;
+  ofsdbg = sizept; sizept += sizedbg;
+
+  /* Allocate prototype object and initialize its fields. */
+  pt = (GCproto *)lj_mem_newgco(ls->L, (MSize)sizept);
+  pt->gct = ~LJ_TPROTO;
+  pt->numparams = (uint8_t)numparams;
+  pt->framesize = (uint8_t)framesize;
+  pt->sizebc = sizebc;
+  setmref(pt->k, (char *)pt + ofsk);
+  setmref(pt->uv, (char *)pt + ofsuv);
+  pt->sizekgc = 0;  /* Set to zero until fully initialized. */
+  pt->sizekn = sizekn;
+  pt->sizept = sizept;
+  pt->sizeuv = (uint8_t)sizeuv;
+  pt->flags = (uint8_t)flags;
+  pt->trace = 0;
+  setgcref(pt->chunkname, obj2gco(ls->chunkname));
+
+  /* Close potentially uninitialized gap between bc and kgc. */
+  *(uint32_t *)((char *)pt + ofsk - sizeof(GCRef)*(sizekgc+1)) = 0;
+
+  /* Read bytecode instructions and upvalue refs. */
+  bcread_bytecode(ls, pt, sizebc);
+  bcread_uv(ls, pt, sizeuv);
+
+  /* Read constants. */
+  bcread_kgc(ls, pt, sizekgc);
+  pt->sizekgc = sizekgc;
+  bcread_knum(ls, pt, sizekn);
+
+  /* Read and initialize debug info. */
+  pt->firstline = firstline;
+  pt->numline = numline;
+  if (sizedbg) {
+    MSize sizeli = (sizebc-1) << (numline < 256 ? 0 : numline < 65536 ? 1 : 2);
+    setmref(pt->lineinfo, (char *)pt + ofsdbg);
+    setmref(pt->uvinfo, (char *)pt + ofsdbg + sizeli);
+    bcread_dbg(ls, pt, sizedbg);
+    setmref(pt->varinfo, bcread_varinfo(pt));
+  } else {
+    setmref(pt->lineinfo, NULL);
+    setmref(pt->uvinfo, NULL);
+    setmref(pt->varinfo, NULL);
+  }
+
+  if (len != startn - ls->n)
+    bcread_error(ls, LJ_ERR_BCBAD);
+  return pt;
+}
+
+/* Read and check header of bytecode dump. */
+static int bcread_header(LexState *ls)
+{
+  uint32_t flags;
+  bcread_want(ls, 3+5+5);
+  if (bcread_byte(ls) != BCDUMP_HEAD2 ||
+      bcread_byte(ls) != BCDUMP_HEAD3 ||
+      bcread_byte(ls) != BCDUMP_VERSION) return 0;
+  bcread_flags(ls) = flags = bcread_uleb128(ls);
+  if ((flags & ~(BCDUMP_F_KNOWN)) != 0) return 0;
+  if ((flags & BCDUMP_F_FFI)) {
+#if LJ_HASFFI
+    lua_State *L = ls->L;
+    if (!ctype_ctsG(G(L))) {
+      ptrdiff_t oldtop = savestack(L, L->top);
+      luaopen_ffi(L);  /* Load FFI library on-demand. */
+      L->top = restorestack(L, oldtop);
+    }
+#else
+    return 0;
+#endif
+  }
+  if ((flags & BCDUMP_F_STRIP)) {
+    ls->chunkname = lj_str_newz(ls->L, ls->chunkarg);
+  } else {
+    MSize len = bcread_uleb128(ls);
+    bcread_need(ls, len);
+    ls->chunkname = lj_str_new(ls->L, (const char *)bcread_mem(ls, len), len);
+  }
+  return 1;  /* Ok. */
+}
+
+/* Read a bytecode dump. */
+GCproto *lj_bcread(LexState *ls)
+{
+  lua_State *L = ls->L;
+  lua_assert(ls->current == BCDUMP_HEAD1);
+  bcread_savetop(L, ls, L->top);
+  lj_str_resetbuf(&ls->sb);
+  /* Check for a valid bytecode dump header. */
+  if (!bcread_header(ls))
+    bcread_error(ls, LJ_ERR_BCFMT);
+  for (;;) {  /* Process all prototypes in the bytecode dump. */
+    GCproto *pt = bcread_proto(ls);
+    if (!pt) break;
+    setprotoV(L, L->top, pt);
+    incr_top(L);
+  }
+  if ((int32_t)ls->n > 0 || L->top-1 != bcread_oldtop(L, ls))
+    bcread_error(ls, LJ_ERR_BCBAD);
+  /* Pop off last prototype. */
+  L->top--;
+  return protoV(L->top);
+}
+
diff --git a/lib/luajit/src/lj_bcwrite.c b/lib/luajit/src/lj_bcwrite.c
new file mode 100644
index 00000000..dcdaa10a
--- /dev/null
+++ b/lib/luajit/src/lj_bcwrite.c
@@ -0,0 +1,396 @@
+/*
+** Bytecode writer.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_bcwrite_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_str.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#if LJ_HASJIT
+#include "lj_dispatch.h"
+#include "lj_jit.h"
+#endif
+#include "lj_bcdump.h"
+#include "lj_vm.h"
+
+/* Context for bytecode writer. */
+typedef struct BCWriteCtx {
+  SBuf sb;			/* Output buffer. */
+  lua_State *L;			/* Lua state. */
+  GCproto *pt;			/* Root prototype. */
+  lua_Writer wfunc;		/* Writer callback. */
+  void *wdata;			/* Writer callback data. */
+  int strip;			/* Strip debug info. */
+  int status;			/* Status from writer callback. */
+} BCWriteCtx;
+
+/* -- Output buffer handling ---------------------------------------------- */
+
+/* Resize buffer if needed. */
+static LJ_NOINLINE void bcwrite_resize(BCWriteCtx *ctx, MSize len)
+{
+  MSize sz = ctx->sb.sz * 2;
+  while (ctx->sb.n + len > sz) sz = sz * 2;
+  lj_str_resizebuf(ctx->L, &ctx->sb, sz);
+}
+
+/* Need a certain amount of buffer space. */
+static LJ_AINLINE void bcwrite_need(BCWriteCtx *ctx, MSize len)
+{
+  if (LJ_UNLIKELY(ctx->sb.n + len > ctx->sb.sz))
+    bcwrite_resize(ctx, len);
+}
+
+/* Add memory block to buffer. */
+static void bcwrite_block(BCWriteCtx *ctx, const void *p, MSize len)
+{
+  uint8_t *q = (uint8_t *)(ctx->sb.buf + ctx->sb.n);
+  MSize i;
+  ctx->sb.n += len;
+  for (i = 0; i < len; i++) q[i] = ((uint8_t *)p)[i];
+}
+
+/* Add byte to buffer. */
+static LJ_AINLINE void bcwrite_byte(BCWriteCtx *ctx, uint8_t b)
+{
+  ctx->sb.buf[ctx->sb.n++] = b;
+}
+
+/* Add ULEB128 value to buffer. */
+static void bcwrite_uleb128(BCWriteCtx *ctx, uint32_t v)
+{
+  MSize n = ctx->sb.n;
+  uint8_t *p = (uint8_t *)ctx->sb.buf;
+  for (; v >= 0x80; v >>= 7)
+    p[n++] = (uint8_t)((v & 0x7f) | 0x80);
+  p[n++] = (uint8_t)v;
+  ctx->sb.n = n;
+}
+
+/* -- Bytecode writer ----------------------------------------------------- */
+
+/* Write a single constant key/value of a template table. */
+static void bcwrite_ktabk(BCWriteCtx *ctx, cTValue *o, int narrow)
+{
+  bcwrite_need(ctx, 1+10);
+  if (tvisstr(o)) {
+    const GCstr *str = strV(o);
+    MSize len = str->len;
+    bcwrite_need(ctx, 5+len);
+    bcwrite_uleb128(ctx, BCDUMP_KTAB_STR+len);
+    bcwrite_block(ctx, strdata(str), len);
+  } else if (tvisint(o)) {
+    bcwrite_byte(ctx, BCDUMP_KTAB_INT);
+    bcwrite_uleb128(ctx, intV(o));
+  } else if (tvisnum(o)) {
+    if (!LJ_DUALNUM && narrow) {  /* Narrow number constants to integers. */
+      lua_Number num = numV(o);
+      int32_t k = lj_num2int(num);
+      if (num == (lua_Number)k) {  /* -0 is never a constant. */
+	bcwrite_byte(ctx, BCDUMP_KTAB_INT);
+	bcwrite_uleb128(ctx, k);
+	return;
+      }
+    }
+    bcwrite_byte(ctx, BCDUMP_KTAB_NUM);
+    bcwrite_uleb128(ctx, o->u32.lo);
+    bcwrite_uleb128(ctx, o->u32.hi);
+  } else {
+    lua_assert(tvispri(o));
+    bcwrite_byte(ctx, BCDUMP_KTAB_NIL+~itype(o));
+  }
+}
+
+/* Write a template table. */
+static void bcwrite_ktab(BCWriteCtx *ctx, const GCtab *t)
+{
+  MSize narray = 0, nhash = 0;
+  if (t->asize > 0) {  /* Determine max. length of array part. */
+    ptrdiff_t i;
+    TValue *array = tvref(t->array);
+    for (i = (ptrdiff_t)t->asize-1; i >= 0; i--)
+      if (!tvisnil(&array[i]))
+	break;
+    narray = (MSize)(i+1);
+  }
+  if (t->hmask > 0) {  /* Count number of used hash slots. */
+    MSize i, hmask = t->hmask;
+    Node *node = noderef(t->node);
+    for (i = 0; i <= hmask; i++)
+      nhash += !tvisnil(&node[i].val);
+  }
+  /* Write number of array slots and hash slots. */
+  bcwrite_uleb128(ctx, narray);
+  bcwrite_uleb128(ctx, nhash);
+  if (narray) {  /* Write array entries (may contain nil). */
+    MSize i;
+    TValue *o = tvref(t->array);
+    for (i = 0; i < narray; i++, o++)
+      bcwrite_ktabk(ctx, o, 1);
+  }
+  if (nhash) {  /* Write hash entries. */
+    MSize i = nhash;
+    Node *node = noderef(t->node) + t->hmask;
+    for (;; node--)
+      if (!tvisnil(&node->val)) {
+	bcwrite_ktabk(ctx, &node->key, 0);
+	bcwrite_ktabk(ctx, &node->val, 1);
+	if (--i == 0) break;
+      }
+  }
+}
+
+/* Write GC constants of a prototype. */
+static void bcwrite_kgc(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize i, sizekgc = pt->sizekgc;
+  GCRef *kr = mref(pt->k, GCRef) - (ptrdiff_t)sizekgc;
+  for (i = 0; i < sizekgc; i++, kr++) {
+    GCobj *o = gcref(*kr);
+    MSize tp, need = 1;
+    /* Determine constant type and needed size. */
+    if (o->gch.gct == ~LJ_TSTR) {
+      tp = BCDUMP_KGC_STR + gco2str(o)->len;
+      need = 5+gco2str(o)->len;
+    } else if (o->gch.gct == ~LJ_TPROTO) {
+      lua_assert((pt->flags & PROTO_CHILD));
+      tp = BCDUMP_KGC_CHILD;
+#if LJ_HASFFI
+    } else if (o->gch.gct == ~LJ_TCDATA) {
+      CTypeID id = gco2cd(o)->ctypeid;
+      need = 1+4*5;
+      if (id == CTID_INT64) {
+	tp = BCDUMP_KGC_I64;
+      } else if (id == CTID_UINT64) {
+	tp = BCDUMP_KGC_U64;
+      } else {
+	lua_assert(id == CTID_COMPLEX_DOUBLE);
+	tp = BCDUMP_KGC_COMPLEX;
+      }
+#endif
+    } else {
+      lua_assert(o->gch.gct == ~LJ_TTAB);
+      tp = BCDUMP_KGC_TAB;
+      need = 1+2*5;
+    }
+    /* Write constant type. */
+    bcwrite_need(ctx, need);
+    bcwrite_uleb128(ctx, tp);
+    /* Write constant data (if any). */
+    if (tp >= BCDUMP_KGC_STR) {
+      bcwrite_block(ctx, strdata(gco2str(o)), gco2str(o)->len);
+    } else if (tp == BCDUMP_KGC_TAB) {
+      bcwrite_ktab(ctx, gco2tab(o));
+#if LJ_HASFFI
+    } else if (tp != BCDUMP_KGC_CHILD) {
+      cTValue *p = (TValue *)cdataptr(gco2cd(o));
+      bcwrite_uleb128(ctx, p[0].u32.lo);
+      bcwrite_uleb128(ctx, p[0].u32.hi);
+      if (tp == BCDUMP_KGC_COMPLEX) {
+	bcwrite_uleb128(ctx, p[1].u32.lo);
+	bcwrite_uleb128(ctx, p[1].u32.hi);
+      }
+#endif
+    }
+  }
+}
+
+/* Write number constants of a prototype. */
+static void bcwrite_knum(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize i, sizekn = pt->sizekn;
+  cTValue *o = mref(pt->k, TValue);
+  bcwrite_need(ctx, 10*sizekn);
+  for (i = 0; i < sizekn; i++, o++) {
+    int32_t k;
+    if (tvisint(o)) {
+      k = intV(o);
+      goto save_int;
+    } else {
+      /* Write a 33 bit ULEB128 for the int (lsb=0) or loword (lsb=1). */
+      if (!LJ_DUALNUM) {  /* Narrow number constants to integers. */
+	lua_Number num = numV(o);
+	k = lj_num2int(num);
+	if (num == (lua_Number)k) {  /* -0 is never a constant. */
+	save_int:
+	  bcwrite_uleb128(ctx, 2*(uint32_t)k | ((uint32_t)k & 0x80000000u));
+	  if (k < 0) {
+	    char *p = &ctx->sb.buf[ctx->sb.n-1];
+	    *p = (*p & 7) | ((k>>27) & 0x18);
+	  }
+	  continue;
+	}
+      }
+      bcwrite_uleb128(ctx, 1+(2*o->u32.lo | (o->u32.lo & 0x80000000u)));
+      if (o->u32.lo >= 0x80000000u) {
+	char *p = &ctx->sb.buf[ctx->sb.n-1];
+	*p = (*p & 7) | ((o->u32.lo>>27) & 0x18);
+      }
+      bcwrite_uleb128(ctx, o->u32.hi);
+    }
+  }
+}
+
+/* Write bytecode instructions. */
+static void bcwrite_bytecode(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize nbc = pt->sizebc-1;  /* Omit the [JI]FUNC* header. */
+#if LJ_HASJIT
+  uint8_t *p = (uint8_t *)&ctx->sb.buf[ctx->sb.n];
+#endif
+  bcwrite_block(ctx, proto_bc(pt)+1, nbc*(MSize)sizeof(BCIns));
+#if LJ_HASJIT
+  /* Unpatch modified bytecode containing ILOOP/JLOOP etc. */
+  if ((pt->flags & PROTO_ILOOP) || pt->trace) {
+    jit_State *J = L2J(ctx->L);
+    MSize i;
+    for (i = 0; i < nbc; i++, p += sizeof(BCIns)) {
+      BCOp op = (BCOp)p[LJ_ENDIAN_SELECT(0, 3)];
+      if (op == BC_IFORL || op == BC_IITERL || op == BC_ILOOP ||
+	  op == BC_JFORI) {
+	p[LJ_ENDIAN_SELECT(0, 3)] = (uint8_t)(op-BC_IFORL+BC_FORL);
+      } else if (op == BC_JFORL || op == BC_JITERL || op == BC_JLOOP) {
+	BCReg rd = p[LJ_ENDIAN_SELECT(2, 1)] + (p[LJ_ENDIAN_SELECT(3, 0)] << 8);
+	BCIns ins = traceref(J, rd)->startins;
+	p[LJ_ENDIAN_SELECT(0, 3)] = (uint8_t)(op-BC_JFORL+BC_FORL);
+	p[LJ_ENDIAN_SELECT(2, 1)] = bc_c(ins);
+	p[LJ_ENDIAN_SELECT(3, 0)] = bc_b(ins);
+      }
+    }
+  }
+#endif
+}
+
+/* Write prototype. */
+static void bcwrite_proto(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize sizedbg = 0;
+
+  /* Recursively write children of prototype. */
+  if ((pt->flags & PROTO_CHILD)) {
+    ptrdiff_t i, n = pt->sizekgc;
+    GCRef *kr = mref(pt->k, GCRef) - 1;
+    for (i = 0; i < n; i++, kr--) {
+      GCobj *o = gcref(*kr);
+      if (o->gch.gct == ~LJ_TPROTO)
+	bcwrite_proto(ctx, gco2pt(o));
+    }
+  }
+
+  /* Start writing the prototype info to a buffer. */
+  lj_str_resetbuf(&ctx->sb);
+  ctx->sb.n = 5;  /* Leave room for final size. */
+  bcwrite_need(ctx, 4+6*5+(pt->sizebc-1)*(MSize)sizeof(BCIns)+pt->sizeuv*2);
+
+  /* Write prototype header. */
+  bcwrite_byte(ctx, (pt->flags & (PROTO_CHILD|PROTO_VARARG|PROTO_FFI)));
+  bcwrite_byte(ctx, pt->numparams);
+  bcwrite_byte(ctx, pt->framesize);
+  bcwrite_byte(ctx, pt->sizeuv);
+  bcwrite_uleb128(ctx, pt->sizekgc);
+  bcwrite_uleb128(ctx, pt->sizekn);
+  bcwrite_uleb128(ctx, pt->sizebc-1);
+  if (!ctx->strip) {
+    if (proto_lineinfo(pt))
+      sizedbg = pt->sizept - (MSize)((char *)proto_lineinfo(pt) - (char *)pt);
+    bcwrite_uleb128(ctx, sizedbg);
+    if (sizedbg) {
+      bcwrite_uleb128(ctx, pt->firstline);
+      bcwrite_uleb128(ctx, pt->numline);
+    }
+  }
+
+  /* Write bytecode instructions and upvalue refs. */
+  bcwrite_bytecode(ctx, pt);
+  bcwrite_block(ctx, proto_uv(pt), pt->sizeuv*2);
+
+  /* Write constants. */
+  bcwrite_kgc(ctx, pt);
+  bcwrite_knum(ctx, pt);
+
+  /* Write debug info, if not stripped. */
+  if (sizedbg) {
+    bcwrite_need(ctx, sizedbg);
+    bcwrite_block(ctx, proto_lineinfo(pt), sizedbg);
+  }
+
+  /* Pass buffer to writer function. */
+  if (ctx->status == 0) {
+    MSize n = ctx->sb.n - 5;
+    MSize nn = (lj_fls(n)+8)*9 >> 6;
+    ctx->sb.n = 5 - nn;
+    bcwrite_uleb128(ctx, n);  /* Fill in final size. */
+    lua_assert(ctx->sb.n == 5);
+    ctx->status = ctx->wfunc(ctx->L, ctx->sb.buf+5-nn, nn+n, ctx->wdata);
+  }
+}
+
+/* Write header of bytecode dump. */
+static void bcwrite_header(BCWriteCtx *ctx)
+{
+  GCstr *chunkname = proto_chunkname(ctx->pt);
+  const char *name = strdata(chunkname);
+  MSize len = chunkname->len;
+  lj_str_resetbuf(&ctx->sb);
+  bcwrite_need(ctx, 5+5+len);
+  bcwrite_byte(ctx, BCDUMP_HEAD1);
+  bcwrite_byte(ctx, BCDUMP_HEAD2);
+  bcwrite_byte(ctx, BCDUMP_HEAD3);
+  bcwrite_byte(ctx, BCDUMP_VERSION);
+  bcwrite_byte(ctx, (ctx->strip ? BCDUMP_F_STRIP : 0) +
+		   (LJ_BE ? BCDUMP_F_BE : 0) +
+		   ((ctx->pt->flags & PROTO_FFI) ? BCDUMP_F_FFI : 0));
+  if (!ctx->strip) {
+    bcwrite_uleb128(ctx, len);
+    bcwrite_block(ctx, name, len);
+  }
+  ctx->status = ctx->wfunc(ctx->L, ctx->sb.buf, ctx->sb.n, ctx->wdata);
+}
+
+/* Write footer of bytecode dump. */
+static void bcwrite_footer(BCWriteCtx *ctx)
+{
+  if (ctx->status == 0) {
+    uint8_t zero = 0;
+    ctx->status = ctx->wfunc(ctx->L, &zero, 1, ctx->wdata);
+  }
+}
+
+/* Protected callback for bytecode writer. */
+static TValue *cpwriter(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  BCWriteCtx *ctx = (BCWriteCtx *)ud;
+  UNUSED(dummy);
+  lj_str_resizebuf(L, &ctx->sb, 1024);  /* Avoids resize for most prototypes. */
+  bcwrite_header(ctx);
+  bcwrite_proto(ctx, ctx->pt);
+  bcwrite_footer(ctx);
+  return NULL;
+}
+
+/* Write bytecode for a prototype. */
+int lj_bcwrite(lua_State *L, GCproto *pt, lua_Writer writer, void *data,
+	      int strip)
+{
+  BCWriteCtx ctx;
+  int status;
+  ctx.L = L;
+  ctx.pt = pt;
+  ctx.wfunc = writer;
+  ctx.wdata = data;
+  ctx.strip = strip;
+  ctx.status = 0;
+  lj_str_initbuf(&ctx.sb);
+  status = lj_vm_cpcall(L, NULL, &ctx, cpwriter);
+  if (status == 0) status = ctx.status;
+  lj_str_freebuf(G(ctx.L), &ctx.sb);
+  return status;
+}
+
diff --git a/lib/luajit/src/lj_carith.c b/lib/luajit/src/lj_carith.c
new file mode 100644
index 00000000..9f94091d
--- /dev/null
+++ b/lib/luajit/src/lj_carith.c
@@ -0,0 +1,351 @@
+/*
+** C data arithmetic.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+#include "lj_carith.h"
+
+/* -- C data arithmetic --------------------------------------------------- */
+
+/* Binary operands of an operator converted to ctypes. */
+typedef struct CDArith {
+  uint8_t *p[2];
+  CType *ct[2];
+} CDArith;
+
+/* Check arguments for arithmetic metamethods. */
+static int carith_checkarg(lua_State *L, CTState *cts, CDArith *ca)
+{
+  TValue *o = L->base;
+  int ok = 1;
+  MSize i;
+  if (o+1 >= L->top)
+    lj_err_argt(L, 1, LUA_TCDATA);
+  for (i = 0; i < 2; i++, o++) {
+    if (tviscdata(o)) {
+      GCcdata *cd = cdataV(o);
+      CTypeID id = (CTypeID)cd->ctypeid;
+      CType *ct = ctype_raw(cts, id);
+      uint8_t *p = (uint8_t *)cdataptr(cd);
+      if (ctype_isptr(ct->info)) {
+	p = (uint8_t *)cdata_getptr(p, ct->size);
+	if (ctype_isref(ct->info)) ct = ctype_rawchild(cts, ct);
+      } else if (ctype_isfunc(ct->info)) {
+	p = (uint8_t *)*(void **)p;
+	ct = ctype_get(cts,
+	  lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|id), CTSIZE_PTR));
+      }
+      if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+      ca->ct[i] = ct;
+      ca->p[i] = p;
+    } else if (tvisint(o)) {
+      ca->ct[i] = ctype_get(cts, CTID_INT32);
+      ca->p[i] = (uint8_t *)&o->i;
+    } else if (tvisnum(o)) {
+      ca->ct[i] = ctype_get(cts, CTID_DOUBLE);
+      ca->p[i] = (uint8_t *)&o->n;
+    } else if (tvisnil(o)) {
+      ca->ct[i] = ctype_get(cts, CTID_P_VOID);
+      ca->p[i] = (uint8_t *)0;
+    } else if (tvisstr(o)) {
+      TValue *o2 = i == 0 ? o+1 : o-1;
+      CType *ct = ctype_raw(cts, cdataV(o2)->ctypeid);
+      ca->ct[i] = NULL;
+      ca->p[i] = NULL;
+      ok = 0;
+      if (ctype_isenum(ct->info)) {
+	CTSize ofs;
+	CType *cct = lj_ctype_getfield(cts, ct, strV(o), &ofs);
+	if (cct && ctype_isconstval(cct->info)) {
+	  ca->ct[i] = ctype_child(cts, cct);
+	  ca->p[i] = (uint8_t *)&cct->size;  /* Assumes ct does not grow. */
+	  ok = 1;
+	} else {
+	  ca->ct[1-i] = ct;  /* Use enum to improve error message. */
+	  ca->p[1-i] = NULL;
+	  break;
+	}
+      }
+    } else {
+      ca->ct[i] = NULL;
+      ca->p[i] = NULL;
+      ok = 0;
+    }
+  }
+  return ok;
+}
+
+/* Pointer arithmetic. */
+static int carith_ptr(lua_State *L, CTState *cts, CDArith *ca, MMS mm)
+{
+  CType *ctp = ca->ct[0];
+  uint8_t *pp = ca->p[0];
+  ptrdiff_t idx;
+  CTSize sz;
+  CTypeID id;
+  GCcdata *cd;
+  if (ctype_isptr(ctp->info) || ctype_isrefarray(ctp->info)) {
+    if ((mm == MM_sub || mm == MM_eq || mm == MM_lt || mm == MM_le) &&
+	(ctype_isptr(ca->ct[1]->info) || ctype_isrefarray(ca->ct[1]->info))) {
+      uint8_t *pp2 = ca->p[1];
+      if (mm == MM_eq) {  /* Pointer equality. Incompatible pointers are ok. */
+	setboolV(L->top-1, (pp == pp2));
+	return 1;
+      }
+      if (!lj_cconv_compatptr(cts, ctp, ca->ct[1], CCF_IGNQUAL))
+	return 0;
+      if (mm == MM_sub) {  /* Pointer difference. */
+	intptr_t diff;
+	sz = lj_ctype_size(cts, ctype_cid(ctp->info));  /* Element size. */
+	if (sz == 0 || sz == CTSIZE_INVALID)
+	  return 0;
+	diff = ((intptr_t)pp - (intptr_t)pp2) / (int32_t)sz;
+	/* All valid pointer differences on x64 are in (-2^47, +2^47),
+	** which fits into a double without loss of precision.
+	*/
+	setintptrV(L->top-1, (int32_t)diff);
+	return 1;
+      } else if (mm == MM_lt) {  /* Pointer comparison (unsigned). */
+	setboolV(L->top-1, ((uintptr_t)pp < (uintptr_t)pp2));
+	return 1;
+      } else {
+	lua_assert(mm == MM_le);
+	setboolV(L->top-1, ((uintptr_t)pp <= (uintptr_t)pp2));
+	return 1;
+      }
+    }
+    if (!((mm == MM_add || mm == MM_sub) && ctype_isnum(ca->ct[1]->info)))
+      return 0;
+    lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ca->ct[1],
+		   (uint8_t *)&idx, ca->p[1], 0);
+    if (mm == MM_sub) idx = -idx;
+  } else if (mm == MM_add && ctype_isnum(ctp->info) &&
+      (ctype_isptr(ca->ct[1]->info) || ctype_isrefarray(ca->ct[1]->info))) {
+    /* Swap pointer and index. */
+    ctp = ca->ct[1]; pp = ca->p[1];
+    lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ca->ct[0],
+		   (uint8_t *)&idx, ca->p[0], 0);
+  } else {
+    return 0;
+  }
+  sz = lj_ctype_size(cts, ctype_cid(ctp->info));  /* Element size. */
+  if (sz == CTSIZE_INVALID)
+    return 0;
+  pp += idx*(int32_t)sz;  /* Compute pointer + index. */
+  id = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(ctp->info)),
+		       CTSIZE_PTR);
+  cd = lj_cdata_new(cts, id, CTSIZE_PTR);
+  *(uint8_t **)cdataptr(cd) = pp;
+  setcdataV(L, L->top-1, cd);
+  lj_gc_check(L);
+  return 1;
+}
+
+/* 64 bit integer arithmetic. */
+static int carith_int64(lua_State *L, CTState *cts, CDArith *ca, MMS mm)
+{
+  if (ctype_isnum(ca->ct[0]->info) && ca->ct[0]->size <= 8 &&
+      ctype_isnum(ca->ct[1]->info) && ca->ct[1]->size <= 8) {
+    CTypeID id = (((ca->ct[0]->info & CTF_UNSIGNED) && ca->ct[0]->size == 8) ||
+		  ((ca->ct[1]->info & CTF_UNSIGNED) && ca->ct[1]->size == 8)) ?
+		 CTID_UINT64 : CTID_INT64;
+    CType *ct = ctype_get(cts, id);
+    GCcdata *cd;
+    uint64_t u0, u1, *up;
+    lj_cconv_ct_ct(cts, ct, ca->ct[0], (uint8_t *)&u0, ca->p[0], 0);
+    if (mm != MM_unm)
+      lj_cconv_ct_ct(cts, ct, ca->ct[1], (uint8_t *)&u1, ca->p[1], 0);
+    switch (mm) {
+    case MM_eq:
+      setboolV(L->top-1, (u0 == u1));
+      return 1;
+    case MM_lt:
+      setboolV(L->top-1,
+	       id == CTID_INT64 ? ((int64_t)u0 < (int64_t)u1) : (u0 < u1));
+      return 1;
+    case MM_le:
+      setboolV(L->top-1,
+	       id == CTID_INT64 ? ((int64_t)u0 <= (int64_t)u1) : (u0 <= u1));
+      return 1;
+    default: break;
+    }
+    cd = lj_cdata_new(cts, id, 8);
+    up = (uint64_t *)cdataptr(cd);
+    setcdataV(L, L->top-1, cd);
+    switch (mm) {
+    case MM_add: *up = u0 + u1; break;
+    case MM_sub: *up = u0 - u1; break;
+    case MM_mul: *up = u0 * u1; break;
+    case MM_div:
+      if (id == CTID_INT64)
+	*up = (uint64_t)lj_carith_divi64((int64_t)u0, (int64_t)u1);
+      else
+	*up = lj_carith_divu64(u0, u1);
+      break;
+    case MM_mod:
+      if (id == CTID_INT64)
+	*up = (uint64_t)lj_carith_modi64((int64_t)u0, (int64_t)u1);
+      else
+	*up = lj_carith_modu64(u0, u1);
+      break;
+    case MM_pow:
+      if (id == CTID_INT64)
+	*up = (uint64_t)lj_carith_powi64((int64_t)u0, (int64_t)u1);
+      else
+	*up = lj_carith_powu64(u0, u1);
+      break;
+    case MM_unm: *up = (uint64_t)-(int64_t)u0; break;
+    default: lua_assert(0); break;
+    }
+    lj_gc_check(L);
+    return 1;
+  }
+  return 0;
+}
+
+/* Handle ctype arithmetic metamethods. */
+static int lj_carith_meta(lua_State *L, CTState *cts, CDArith *ca, MMS mm)
+{
+  cTValue *tv = NULL;
+  if (tviscdata(L->base)) {
+    CTypeID id = cdataV(L->base)->ctypeid;
+    CType *ct = ctype_raw(cts, id);
+    if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+    tv = lj_ctype_meta(cts, id, mm);
+  }
+  if (!tv && L->base+1 < L->top && tviscdata(L->base+1)) {
+    CTypeID id = cdataV(L->base+1)->ctypeid;
+    CType *ct = ctype_raw(cts, id);
+    if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+    tv = lj_ctype_meta(cts, id, mm);
+  }
+  if (!tv) {
+    const char *repr[2];
+    int i, isenum = -1, isstr = -1;
+    if (mm == MM_eq) {  /* Equality checks never raise an error. */
+      setboolV(L->top-1, 0);
+      return 1;
+    }
+    for (i = 0; i < 2; i++) {
+      if (ca->ct[i] && tviscdata(L->base+i)) {
+	if (ctype_isenum(ca->ct[i]->info)) isenum = i;
+	repr[i] = strdata(lj_ctype_repr(L, ctype_typeid(cts, ca->ct[i]), NULL));
+      } else {
+	if (tvisstr(&L->base[i])) isstr = i;
+	repr[i] = lj_typename(&L->base[i]);
+      }
+    }
+    if ((isenum ^ isstr) == 1)
+      lj_err_callerv(L, LJ_ERR_FFI_BADCONV, repr[isstr], repr[isenum]);
+    lj_err_callerv(L, mm == MM_len ? LJ_ERR_FFI_BADLEN :
+		      mm == MM_concat ? LJ_ERR_FFI_BADCONCAT :
+		      mm < MM_add ? LJ_ERR_FFI_BADCOMP : LJ_ERR_FFI_BADARITH,
+		   repr[0], repr[1]);
+  }
+  return lj_meta_tailcall(L, tv);
+}
+
+/* Arithmetic operators for cdata. */
+int lj_carith_op(lua_State *L, MMS mm)
+{
+  CTState *cts = ctype_cts(L);
+  CDArith ca;
+  if (carith_checkarg(L, cts, &ca)) {
+    if (carith_int64(L, cts, &ca, mm) || carith_ptr(L, cts, &ca, mm)) {
+      copyTV(L, &G(L)->tmptv2, L->top-1);  /* Remember for trace recorder. */
+      return 1;
+    }
+  }
+  return lj_carith_meta(L, cts, &ca, mm);
+}
+
+/* -- 64 bit integer arithmetic helpers ----------------------------------- */
+
+#if LJ_32 && LJ_HASJIT
+/* Signed/unsigned 64 bit multiplication. */
+int64_t lj_carith_mul64(int64_t a, int64_t b)
+{
+  return a * b;
+}
+#endif
+
+/* Unsigned 64 bit division. */
+uint64_t lj_carith_divu64(uint64_t a, uint64_t b)
+{
+  if (b == 0) return U64x(80000000,00000000);
+  return a / b;
+}
+
+/* Signed 64 bit division. */
+int64_t lj_carith_divi64(int64_t a, int64_t b)
+{
+  if (b == 0 || (a == (int64_t)U64x(80000000,00000000) && b == -1))
+    return U64x(80000000,00000000);
+  return a / b;
+}
+
+/* Unsigned 64 bit modulo. */
+uint64_t lj_carith_modu64(uint64_t a, uint64_t b)
+{
+  if (b == 0) return U64x(80000000,00000000);
+  return a % b;
+}
+
+/* Signed 64 bit modulo. */
+int64_t lj_carith_modi64(int64_t a, int64_t b)
+{
+  if (b == 0) return U64x(80000000,00000000);
+  if (a == (int64_t)U64x(80000000,00000000) && b == -1) return 0;
+  return a % b;
+}
+
+/* Unsigned 64 bit x^k. */
+uint64_t lj_carith_powu64(uint64_t x, uint64_t k)
+{
+  uint64_t y;
+  if (k == 0)
+    return 1;
+  for (; (k & 1) == 0; k >>= 1) x *= x;
+  y = x;
+  if ((k >>= 1) != 0) {
+    for (;;) {
+      x *= x;
+      if (k == 1) break;
+      if (k & 1) y *= x;
+      k >>= 1;
+    }
+    y *= x;
+  }
+  return y;
+}
+
+/* Signed 64 bit x^k. */
+int64_t lj_carith_powi64(int64_t x, int64_t k)
+{
+  if (k == 0)
+    return 1;
+  if (k < 0) {
+    if (x == 0)
+      return U64x(7fffffff,ffffffff);
+    else if (x == 1)
+      return 1;
+    else if (x == -1)
+      return (k & 1) ? -1 : 1;
+    else
+      return 0;
+  }
+  return (int64_t)lj_carith_powu64((uint64_t)x, (uint64_t)k);
+}
+
+#endif
diff --git a/lib/luajit/src/lj_carith.h b/lib/luajit/src/lj_carith.h
new file mode 100644
index 00000000..8b28556d
--- /dev/null
+++ b/lib/luajit/src/lj_carith.h
@@ -0,0 +1,27 @@
+/*
+** C data arithmetic.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CARITH_H
+#define _LJ_CARITH_H
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+LJ_FUNC int lj_carith_op(lua_State *L, MMS mm);
+
+#if LJ_32 && LJ_HASJIT
+LJ_FUNC int64_t lj_carith_mul64(int64_t x, int64_t k);
+#endif
+LJ_FUNC uint64_t lj_carith_divu64(uint64_t a, uint64_t b);
+LJ_FUNC int64_t lj_carith_divi64(int64_t a, int64_t b);
+LJ_FUNC uint64_t lj_carith_modu64(uint64_t a, uint64_t b);
+LJ_FUNC int64_t lj_carith_modi64(int64_t a, int64_t b);
+LJ_FUNC uint64_t lj_carith_powu64(uint64_t x, uint64_t k);
+LJ_FUNC int64_t lj_carith_powi64(int64_t x, int64_t k);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_ccall.c b/lib/luajit/src/lj_ccall.c
new file mode 100644
index 00000000..70c9ba5e
--- /dev/null
+++ b/lib/luajit/src/lj_ccall.c
@@ -0,0 +1,900 @@
+/*
+** FFI C call handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+#include "lj_ccall.h"
+#include "lj_trace.h"
+
+/* Target-specific handling of register arguments. */
+#if LJ_TARGET_X86
+/* -- x86 calling conventions --------------------------------------------- */
+
+#if LJ_ABI_WIN
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs bigger than 8 by reference (on stack only). */ \
+  cc->retref = (sz > 8); \
+  if (cc->retref) cc->stack[nsp++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET CCALL_HANDLE_STRUCTRET
+
+#else
+
+#if LJ_TARGET_OSX
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs of size 1, 2, 4 or 8 in registers. */ \
+  cc->retref = !(sz == 1 || sz == 2 || sz == 4 || sz == 8); \
+  if (cc->retref) { \
+    if (ngpr < maxgpr) \
+      cc->gpr[ngpr++] = (GPRArg)dp; \
+    else \
+      cc->stack[nsp++] = (GPRArg)dp; \
+  } else {  /* Struct with single FP field ends up in FPR. */ \
+    cc->resx87 = ccall_classify_struct(cts, ctr); \
+  }
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  if (cc->resx87) sp = (uint8_t *)&cc->fpr[0]; \
+  memcpy(dp, sp, ctr->size);
+
+#else
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference (in reg or on stack). */ \
+  if (ngpr < maxgpr) \
+    cc->gpr[ngpr++] = (GPRArg)dp; \
+  else \
+    cc->stack[nsp++] = (GPRArg)dp;
+
+#endif
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Return complex float in GPRs and complex double by reference. */ \
+  cc->retref = (sz > 8); \
+  if (cc->retref) { \
+    if (ngpr < maxgpr) \
+      cc->gpr[ngpr++] = (GPRArg)dp; \
+    else \
+      cc->stack[nsp++] = (GPRArg)dp; \
+  }
+
+#endif
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (!cc->retref) \
+    *(int64_t *)dp = *(int64_t *)sp;  /* Copy complex float from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  ngpr = maxgpr;  /* Pass all structs by value on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  isfp = 1;  /* Pass complex by value on stack. */
+
+#define CCALL_HANDLE_REGARG \
+  if (!isfp) {  /* Only non-FP values may be passed in registers. */ \
+    if (n > 1) {  /* Anything > 32 bit is passed on the stack. */ \
+      if (!LJ_ABI_WIN) ngpr = maxgpr;  /* Prevent reordering. */ \
+    } else if (ngpr + 1 <= maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_X64 && LJ_ABI_WIN
+/* -- Windows/x64 calling conventions ------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs of size 1, 2, 4 or 8 in a GPR. */ \
+  cc->retref = !(sz == 1 || sz == 2 || sz == 4 || sz == 8); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET CCALL_HANDLE_STRUCTRET
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (!cc->retref) \
+    *(int64_t *)dp = *(int64_t *)sp;  /* Copy complex float from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass structs of size 1, 2, 4 or 8 in a GPR by value. */ \
+  if (!(sz == 1 || sz == 2 || sz == 4 || sz == 8)) { \
+    rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+    sz = CTSIZE_PTR;  /* Pass all other structs by reference. */ \
+  }
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex float in a GPR and complex double by reference. */ \
+  if (sz != 2*sizeof(float)) { \
+    rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+    sz = CTSIZE_PTR; \
+  }
+
+/* Windows/x64 argument registers are strictly positional (use ngpr). */
+#define CCALL_HANDLE_REGARG \
+  if (isfp) { \
+    if (ngpr < maxgpr) { dp = &cc->fpr[ngpr++]; nfpr = ngpr; goto done; } \
+  } else { \
+    if (ngpr < maxgpr) { dp = &cc->gpr[ngpr++]; goto done; } \
+  }
+
+#elif LJ_TARGET_X64
+/* -- POSIX/x64 calling conventions --------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  int rcl[2]; rcl[0] = rcl[1] = 0; \
+  if (ccall_classify_struct(cts, ctr, rcl, 0)) { \
+    cc->retref = 1;  /* Return struct by reference. */ \
+    cc->gpr[ngpr++] = (GPRArg)dp; \
+  } else { \
+    cc->retref = 0;  /* Return small structs in registers. */ \
+  }
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  int rcl[2]; rcl[0] = rcl[1] = 0; \
+  ccall_classify_struct(cts, ctr, rcl, 0); \
+  ccall_struct_ret(cc, rcl, dp, ctr->size);
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in one or two FPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from FPR. */ \
+    *(int64_t *)dp = cc->fpr[0].l[0]; \
+  } else {  /* Copy non-contiguous complex double from FPRs. */ \
+    ((int64_t *)dp)[0] = cc->fpr[0].l[0]; \
+    ((int64_t *)dp)[1] = cc->fpr[1].l[0]; \
+  }
+
+#define CCALL_HANDLE_STRUCTARG \
+  int rcl[2]; rcl[0] = rcl[1] = 0; \
+  if (!ccall_classify_struct(cts, d, rcl, 0)) { \
+    cc->nsp = nsp; cc->ngpr = ngpr; cc->nfpr = nfpr; \
+    if (ccall_struct_arg(cc, cts, d, rcl, o, narg)) goto err_nyi; \
+    nsp = cc->nsp; ngpr = cc->ngpr; nfpr = cc->nfpr; \
+    continue; \
+  }  /* Pass all other structs by value on stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  isfp = 2;  /* Pass complex in FPRs or on stack. Needs postprocessing. */
+
+#define CCALL_HANDLE_REGARG \
+  if (isfp) {  /* Try to pass argument in FPRs. */ \
+    int n2 = ctype_isvector(d->info) ? 1 : n; \
+    if (nfpr + n2 <= CCALL_NARG_FPR) { \
+      dp = &cc->fpr[nfpr]; \
+      nfpr += n2; \
+      goto done; \
+    } \
+  } else {  /* Try to pass argument in GPRs. */ \
+    /* Note that reordering is explicitly allowed in the x64 ABI. */ \
+    if (n <= 2 && ngpr + n <= maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_ARM
+/* -- ARM calling conventions --------------------------------------------- */
+
+#if LJ_ABI_SOFTFP
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs of size <= 4 in a GPR. */ \
+  cc->retref = !(sz <= 4); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  cc->retref = 1;  /* Return all complex values by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  UNUSED(dp); /* Nothing to do. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+#define CCALL_HANDLE_REGARG_FP1
+#define CCALL_HANDLE_REGARG_FP2
+
+#else
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = !ccall_classify_struct(cts, ctr, ct); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  if (ccall_classify_struct(cts, ctr, ct) > 1) sp = (uint8_t *)&cc->fpr[0]; \
+  memcpy(dp, sp, ctr->size);
+
+#define CCALL_HANDLE_COMPLEXRET \
+  if (!(ct->info & CTF_VARARG)) cc->retref = 0;  /* Return complex in FPRs. */
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (!(ct->info & CTF_VARARG)) memcpy(dp, &cc->fpr[0], ctr->size);
+
+#define CCALL_HANDLE_STRUCTARG \
+  isfp = (ccall_classify_struct(cts, d, ct) > 1);
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  isfp = 1;  /* Pass complex by value in FPRs or on stack. */
+
+#define CCALL_HANDLE_REGARG_FP1 \
+  if (isfp && !(ct->info & CTF_VARARG)) { \
+    if ((d->info & CTF_ALIGN) > CTALIGN_PTR) { \
+      if (nfpr + (n >> 1) <= CCALL_NARG_FPR) { \
+	dp = &cc->fpr[nfpr]; \
+	nfpr += (n >> 1); \
+	goto done; \
+      } \
+    } else { \
+      if (sz > 1 && fprodd != nfpr) fprodd = 0; \
+      if (fprodd) { \
+	if (2*nfpr+n <= 2*CCALL_NARG_FPR+1) { \
+	  dp = (void *)&cc->fpr[fprodd-1].f[1]; \
+	  nfpr += (n >> 1); \
+	  if ((n & 1)) fprodd = 0; else fprodd = nfpr-1; \
+	  goto done; \
+	} \
+      } else { \
+	if (2*nfpr+n <= 2*CCALL_NARG_FPR) { \
+	  dp = (void *)&cc->fpr[nfpr]; \
+	  nfpr += (n >> 1); \
+	  if ((n & 1)) fprodd = ++nfpr; else fprodd = 0; \
+	  goto done; \
+	} \
+      } \
+    } \
+    fprodd = 0;  /* No reordering after the first FP value is on stack. */ \
+  } else {
+
+#define CCALL_HANDLE_REGARG_FP2	}
+
+#endif
+
+#define CCALL_HANDLE_REGARG \
+  CCALL_HANDLE_REGARG_FP1 \
+  if ((d->info & CTF_ALIGN) > CTALIGN_PTR) { \
+    if (ngpr < maxgpr) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+  } \
+  if (ngpr < maxgpr) { \
+    dp = &cc->gpr[ngpr]; \
+    if (ngpr + n > maxgpr) { \
+      nsp += ngpr + n - maxgpr;  /* Assumes contiguous gpr/stack fields. */ \
+      if (nsp > CCALL_MAXSTACK) goto err_nyi;  /* Too many arguments. */ \
+      ngpr = maxgpr; \
+    } else { \
+      ngpr += n; \
+    } \
+    goto done; \
+  } CCALL_HANDLE_REGARG_FP2
+
+#define CCALL_HANDLE_RET \
+  if ((ct->info & CTF_VARARG)) sp = (uint8_t *)&cc->gpr[0];
+
+#elif LJ_TARGET_PPC
+/* -- PPC calling conventions --------------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in 2 or 4 GPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  memcpy(dp, sp, ctr->size);  /* Copy complex from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+  sz = CTSIZE_PTR;  /* Pass all structs by reference. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+#define CCALL_HANDLE_REGARG \
+  if (isfp) {  /* Try to pass argument in FPRs. */ \
+    if (nfpr + 1 <= CCALL_NARG_FPR) { \
+      dp = &cc->fpr[nfpr]; \
+      nfpr += 1; \
+      d = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */ \
+      goto done; \
+    } \
+  } else {  /* Try to pass argument in GPRs. */ \
+    if (n > 1) { \
+      lua_assert(n == 2 || n == 4);  /* int64_t or complex (float). */ \
+      if (ctype_isinteger(d->info)) \
+	ngpr = (ngpr + 1u) & ~1u;  /* Align int64_t to regpair. */ \
+      else if (ngpr + n > maxgpr) \
+	ngpr = maxgpr;  /* Prevent reordering. */ \
+    } \
+    if (ngpr + n <= maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    ctr = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */
+
+#elif LJ_TARGET_PPCSPE
+/* -- PPC/SPE calling conventions ----------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in 2 or 4 GPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  memcpy(dp, sp, ctr->size);  /* Copy complex from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+  sz = CTSIZE_PTR;  /* Pass all structs by reference. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+/* PPC/SPE has a softfp ABI. */
+#define CCALL_HANDLE_REGARG \
+  if (n > 1) {  /* Doesn't fit in a single GPR? */ \
+    lua_assert(n == 2 || n == 4);  /* int64_t, double or complex (float). */ \
+    if (n == 2) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Only align 64 bit value to regpair. */ \
+    else if (ngpr + n > maxgpr) \
+      ngpr = maxgpr;  /* Prevent reordering. */ \
+  } \
+  if (ngpr + n <= maxgpr) { \
+    dp = &cc->gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  }
+
+#elif LJ_TARGET_MIPS
+/* -- MIPS calling conventions -------------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in 1 or 2 FPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from FPRs. */ \
+    ((float *)dp)[0] = cc->fpr[0].f; \
+    ((float *)dp)[1] = cc->fpr[1].f; \
+  } else {  /* Copy complex double from FPRs. */ \
+    ((double *)dp)[0] = cc->fpr[0].d; \
+    ((double *)dp)[1] = cc->fpr[1].d; \
+  }
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+#define CCALL_HANDLE_REGARG \
+  if (isfp && nfpr < CCALL_NARG_FPR && !(ct->info & CTF_VARARG)) { \
+    /* Try to pass argument in FPRs. */ \
+    dp = n == 1 ? (void *)&cc->fpr[nfpr].f : (void *)&cc->fpr[nfpr].d; \
+    nfpr++; ngpr += n; \
+    goto done; \
+  } else {  /* Try to pass argument in GPRs. */ \
+    nfpr = CCALL_NARG_FPR; \
+    if ((d->info & CTF_ALIGN) > CTALIGN_PTR) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+    if (ngpr < maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      if (ngpr + n > maxgpr) { \
+	nsp += ngpr + n - maxgpr;  /* Assumes contiguous gpr/stack fields. */ \
+	if (nsp > CCALL_MAXSTACK) goto err_nyi;  /* Too many arguments. */ \
+	ngpr = maxgpr; \
+      } else { \
+	ngpr += n; \
+      } \
+      goto done; \
+    } \
+  }
+
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    sp = (uint8_t *)&cc->fpr[0].f;
+
+#else
+#error "Missing calling convention definitions for this architecture"
+#endif
+
+#ifndef CCALL_HANDLE_STRUCTRET2
+#define CCALL_HANDLE_STRUCTRET2 \
+  memcpy(dp, sp, ctr->size);  /* Copy struct return value from GPRs. */
+#endif
+
+/* -- x86 OSX ABI struct classification ----------------------------------- */
+
+#if LJ_TARGET_X86 && LJ_TARGET_OSX
+
+/* Check for struct with single FP field. */
+static int ccall_classify_struct(CTState *cts, CType *ct)
+{
+  CTSize sz = ct->size;
+  if (!(sz == sizeof(float) || sz == sizeof(double))) return 0;
+  if ((ct->info & CTF_UNION)) return 0;
+  while (ct->sib) {
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      CType *sct = ctype_rawchild(cts, ct);
+      if (ctype_isfp(sct->info)) {
+	if (sct->size == sz)
+	  return (sz >> 2);  /* Return 1 for float or 2 for double. */
+      } else if (ctype_isstruct(sct->info)) {
+	if (sct->size)
+	  return ccall_classify_struct(cts, sct);
+      } else {
+	break;
+      }
+    } else if (ctype_isbitfield(ct->info)) {
+      break;
+    } else if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      CType *sct = ctype_rawchild(cts, ct);
+      if (sct->size)
+	return ccall_classify_struct(cts, sct);
+    }
+  }
+  return 0;
+}
+
+#endif
+
+/* -- x64 struct classification ------------------------------------------- */
+
+#if LJ_TARGET_X64 && !LJ_ABI_WIN
+
+/* Register classes for x64 struct classification. */
+#define CCALL_RCL_INT	1
+#define CCALL_RCL_SSE	2
+#define CCALL_RCL_MEM	4
+/* NYI: classify vectors. */
+
+static int ccall_classify_struct(CTState *cts, CType *ct, int *rcl, CTSize ofs);
+
+/* Classify a C type. */
+static void ccall_classify_ct(CTState *cts, CType *ct, int *rcl, CTSize ofs)
+{
+  if (ctype_isarray(ct->info)) {
+    CType *cct = ctype_rawchild(cts, ct);
+    CTSize eofs, esz = cct->size, asz = ct->size;
+    for (eofs = 0; eofs < asz; eofs += esz)
+      ccall_classify_ct(cts, cct, rcl, ofs+eofs);
+  } else if (ctype_isstruct(ct->info)) {
+    ccall_classify_struct(cts, ct, rcl, ofs);
+  } else {
+    int cl = ctype_isfp(ct->info) ? CCALL_RCL_SSE : CCALL_RCL_INT;
+    lua_assert(ctype_hassize(ct->info));
+    if ((ofs & (ct->size-1))) cl = CCALL_RCL_MEM;  /* Unaligned. */
+    rcl[(ofs >= 8)] |= cl;
+  }
+}
+
+/* Recursively classify a struct based on its fields. */
+static int ccall_classify_struct(CTState *cts, CType *ct, int *rcl, CTSize ofs)
+{
+  if (ct->size > 16) return CCALL_RCL_MEM;  /* Too big, gets memory class. */
+  while (ct->sib) {
+    CTSize fofs;
+    ct = ctype_get(cts, ct->sib);
+    fofs = ofs+ct->size;
+    if (ctype_isfield(ct->info))
+      ccall_classify_ct(cts, ctype_rawchild(cts, ct), rcl, fofs);
+    else if (ctype_isbitfield(ct->info))
+      rcl[(fofs >= 8)] |= CCALL_RCL_INT;  /* NYI: unaligned bitfields? */
+    else if (ctype_isxattrib(ct->info, CTA_SUBTYPE))
+      ccall_classify_struct(cts, ctype_rawchild(cts, ct), rcl, fofs);
+  }
+  return ((rcl[0]|rcl[1]) & CCALL_RCL_MEM);  /* Memory class? */
+}
+
+/* Try to split up a small struct into registers. */
+static int ccall_struct_reg(CCallState *cc, GPRArg *dp, int *rcl)
+{
+  MSize ngpr = cc->ngpr, nfpr = cc->nfpr;
+  uint32_t i;
+  for (i = 0; i < 2; i++) {
+    lua_assert(!(rcl[i] & CCALL_RCL_MEM));
+    if ((rcl[i] & CCALL_RCL_INT)) {  /* Integer class takes precedence. */
+      if (ngpr >= CCALL_NARG_GPR) return 1;  /* Register overflow. */
+      cc->gpr[ngpr++] = dp[i];
+    } else if ((rcl[i] & CCALL_RCL_SSE)) {
+      if (nfpr >= CCALL_NARG_FPR) return 1;  /* Register overflow. */
+      cc->fpr[nfpr++].l[0] = dp[i];
+    }
+  }
+  cc->ngpr = ngpr; cc->nfpr = nfpr;
+  return 0;  /* Ok. */
+}
+
+/* Pass a small struct argument. */
+static int ccall_struct_arg(CCallState *cc, CTState *cts, CType *d, int *rcl,
+			    TValue *o, int narg)
+{
+  GPRArg dp[2];
+  dp[0] = dp[1] = 0;
+  /* Convert to temp. struct. */
+  lj_cconv_ct_tv(cts, d, (uint8_t *)dp, o, CCF_ARG(narg));
+  if (ccall_struct_reg(cc, dp, rcl)) {  /* Register overflow? Pass on stack. */
+    MSize nsp = cc->nsp, n = rcl[1] ? 2 : 1;
+    if (nsp + n > CCALL_MAXSTACK) return 1;  /* Too many arguments. */
+    cc->nsp = nsp + n;
+    memcpy(&cc->stack[nsp], dp, n*CTSIZE_PTR);
+  }
+  return 0;  /* Ok. */
+}
+
+/* Combine returned small struct. */
+static void ccall_struct_ret(CCallState *cc, int *rcl, uint8_t *dp, CTSize sz)
+{
+  GPRArg sp[2];
+  MSize ngpr = 0, nfpr = 0;
+  uint32_t i;
+  for (i = 0; i < 2; i++) {
+    if ((rcl[i] & CCALL_RCL_INT)) {  /* Integer class takes precedence. */
+      sp[i] = cc->gpr[ngpr++];
+    } else if ((rcl[i] & CCALL_RCL_SSE)) {
+      sp[i] = cc->fpr[nfpr++].l[0];
+    }
+  }
+  memcpy(dp, sp, sz);
+}
+#endif
+
+/* -- ARM hard-float ABI struct classification ---------------------------- */
+
+#if LJ_TARGET_ARM && !LJ_ABI_SOFTFP
+
+/* Classify a struct based on its fields. */
+static unsigned int ccall_classify_struct(CTState *cts, CType *ct, CType *ctf)
+{
+  CTSize sz = ct->size;
+  unsigned int r = 0, n = 0, isu = (ct->info & CTF_UNION);
+  if ((ctf->info & CTF_VARARG)) goto noth;
+  while (ct->sib) {
+    CType *sct;
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      sct = ctype_rawchild(cts, ct);
+      if (ctype_isfp(sct->info)) {
+	r |= sct->size;
+	if (!isu) n++; else if (n == 0) n = 1;
+      } else if (ctype_iscomplex(sct->info)) {
+	r |= (sct->size >> 1);
+	if (!isu) n += 2; else if (n < 2) n = 2;
+      } else if (ctype_isstruct(sct->info)) {
+	goto substruct;
+      } else {
+	goto noth;
+      }
+    } else if (ctype_isbitfield(ct->info)) {
+      goto noth;
+    } else if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      sct = ctype_rawchild(cts, ct);
+    substruct:
+      if (sct->size > 0) {
+	unsigned int s = ccall_classify_struct(cts, sct, ctf);
+	if (s <= 1) goto noth;
+	r |= (s & 255);
+	if (!isu) n += (s >> 8); else if (n < (s >>8)) n = (s >> 8);
+      }
+    }
+  }
+  if ((r == 4 || r == 8) && n <= 4)
+    return r + (n << 8);
+noth:  /* Not a homogeneous float/double aggregate. */
+  return (sz <= 4);  /* Return structs of size <= 4 in a GPR. */
+}
+
+#endif
+
+/* -- Common C call handling ---------------------------------------------- */
+
+/* Infer the destination CTypeID for a vararg argument. */
+CTypeID lj_ccall_ctid_vararg(CTState *cts, cTValue *o)
+{
+  if (tvisnumber(o)) {
+    return CTID_DOUBLE;
+  } else if (tviscdata(o)) {
+    CTypeID id = cdataV(o)->ctypeid;
+    CType *s = ctype_get(cts, id);
+    if (ctype_isrefarray(s->info)) {
+      return lj_ctype_intern(cts,
+	       CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(s->info)), CTSIZE_PTR);
+    } else if (ctype_isstruct(s->info) || ctype_isfunc(s->info)) {
+      /* NYI: how to pass a struct by value in a vararg argument? */
+      return lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|id), CTSIZE_PTR);
+    } else if (ctype_isfp(s->info) && s->size == sizeof(float)) {
+      return CTID_DOUBLE;
+    } else {
+      return id;
+    }
+  } else if (tvisstr(o)) {
+    return CTID_P_CCHAR;
+  } else if (tvisbool(o)) {
+    return CTID_BOOL;
+  } else {
+    return CTID_P_VOID;
+  }
+}
+
+/* Setup arguments for C call. */
+static int ccall_set_args(lua_State *L, CTState *cts, CType *ct,
+			  CCallState *cc)
+{
+  int gcsteps = 0;
+  TValue *o, *top = L->top;
+  CTypeID fid;
+  CType *ctr;
+  MSize maxgpr, ngpr = 0, nsp = 0, narg;
+#if CCALL_NARG_FPR
+  MSize nfpr = 0;
+#if LJ_TARGET_ARM
+  MSize fprodd = 0;
+#endif
+#endif
+
+  /* Clear unused regs to get some determinism in case of misdeclaration. */
+  memset(cc->gpr, 0, sizeof(cc->gpr));
+#if CCALL_NUM_FPR
+  memset(cc->fpr, 0, sizeof(cc->fpr));
+#endif
+
+#if LJ_TARGET_X86
+  /* x86 has several different calling conventions. */
+  cc->resx87 = 0;
+  switch (ctype_cconv(ct->info)) {
+  case CTCC_FASTCALL: maxgpr = 2; break;
+  case CTCC_THISCALL: maxgpr = 1; break;
+  default: maxgpr = 0; break;
+  }
+#else
+  maxgpr = CCALL_NARG_GPR;
+#endif
+
+  /* Perform required setup for some result types. */
+  ctr = ctype_rawchild(cts, ct);
+  if (ctype_isvector(ctr->info)) {
+    if (!(CCALL_VECTOR_REG && (ctr->size == 8 || ctr->size == 16)))
+      goto err_nyi;
+  } else if (ctype_iscomplex(ctr->info) || ctype_isstruct(ctr->info)) {
+    /* Preallocate cdata object and anchor it after arguments. */
+    CTSize sz = ctr->size;
+    GCcdata *cd = lj_cdata_new(cts, ctype_cid(ct->info), sz);
+    void *dp = cdataptr(cd);
+    setcdataV(L, L->top++, cd);
+    if (ctype_isstruct(ctr->info)) {
+      CCALL_HANDLE_STRUCTRET
+    } else {
+      CCALL_HANDLE_COMPLEXRET
+    }
+#if LJ_TARGET_X86
+  } else if (ctype_isfp(ctr->info)) {
+    cc->resx87 = ctr->size == sizeof(float) ? 1 : 2;
+#endif
+  }
+
+  /* Skip initial attributes. */
+  fid = ct->sib;
+  while (fid) {
+    CType *ctf = ctype_get(cts, fid);
+    if (!ctype_isattrib(ctf->info)) break;
+    fid = ctf->sib;
+  }
+
+  /* Walk through all passed arguments. */
+  for (o = L->base+1, narg = 1; o < top; o++, narg++) {
+    CTypeID did;
+    CType *d;
+    CTSize sz;
+    MSize n, isfp = 0, isva = 0;
+    void *dp, *rp = NULL;
+
+    if (fid) {  /* Get argument type from field. */
+      CType *ctf = ctype_get(cts, fid);
+      fid = ctf->sib;
+      lua_assert(ctype_isfield(ctf->info));
+      did = ctype_cid(ctf->info);
+    } else {
+      if (!(ct->info & CTF_VARARG))
+	lj_err_caller(L, LJ_ERR_FFI_NUMARG);  /* Too many arguments. */
+      did = lj_ccall_ctid_vararg(cts, o);  /* Infer vararg type. */
+      isva = 1;
+    }
+    d = ctype_raw(cts, did);
+    sz = d->size;
+
+    /* Find out how (by value/ref) and where (GPR/FPR) to pass an argument. */
+    if (ctype_isnum(d->info)) {
+      if (sz > 8) goto err_nyi;
+      if ((d->info & CTF_FP))
+	isfp = 1;
+    } else if (ctype_isvector(d->info)) {
+      if (CCALL_VECTOR_REG && (sz == 8 || sz == 16))
+	isfp = 1;
+      else
+	goto err_nyi;
+    } else if (ctype_isstruct(d->info)) {
+      CCALL_HANDLE_STRUCTARG
+    } else if (ctype_iscomplex(d->info)) {
+      CCALL_HANDLE_COMPLEXARG
+    } else {
+      sz = CTSIZE_PTR;
+    }
+    sz = (sz + CTSIZE_PTR-1) & ~(CTSIZE_PTR-1);
+    n = sz / CTSIZE_PTR;  /* Number of GPRs or stack slots needed. */
+
+    CCALL_HANDLE_REGARG  /* Handle register arguments. */
+
+    /* Otherwise pass argument on stack. */
+    if (CCALL_ALIGN_STACKARG && !rp && (d->info & CTF_ALIGN) > CTALIGN_PTR) {
+      MSize align = (1u << ctype_align(d->info-CTALIGN_PTR)) -1;
+      nsp = (nsp + align) & ~align;  /* Align argument on stack. */
+    }
+    if (nsp + n > CCALL_MAXSTACK) {  /* Too many arguments. */
+    err_nyi:
+      lj_err_caller(L, LJ_ERR_FFI_NYICALL);
+    }
+    dp = &cc->stack[nsp];
+    nsp += n;
+    isva = 0;
+
+  done:
+    if (rp) {  /* Pass by reference. */
+      gcsteps++;
+      *(void **)dp = rp;
+      dp = rp;
+    }
+    lj_cconv_ct_tv(cts, d, (uint8_t *)dp, o, CCF_ARG(narg));
+    /* Extend passed integers to 32 bits at least. */
+    if (ctype_isinteger_or_bool(d->info) && d->size < 4) {
+      if (d->info & CTF_UNSIGNED)
+	*(uint32_t *)dp = d->size == 1 ? (uint32_t)*(uint8_t *)dp :
+					 (uint32_t)*(uint16_t *)dp;
+      else
+	*(int32_t *)dp = d->size == 1 ? (int32_t)*(int8_t *)dp :
+					(int32_t)*(int16_t *)dp;
+    }
+#if LJ_TARGET_X64 && LJ_ABI_WIN
+    if (isva) {  /* Windows/x64 mirrors varargs in both register sets. */
+      if (nfpr == ngpr)
+	cc->gpr[ngpr-1] = cc->fpr[ngpr-1].l[0];
+      else
+	cc->fpr[ngpr-1].l[0] = cc->gpr[ngpr-1];
+    }
+#else
+    UNUSED(isva);
+#endif
+#if LJ_TARGET_X64 && !LJ_ABI_WIN
+    if (isfp == 2 && n == 2 && (uint8_t *)dp == (uint8_t *)&cc->fpr[nfpr-2]) {
+      cc->fpr[nfpr-1].d[0] = cc->fpr[nfpr-2].d[1];  /* Split complex double. */
+      cc->fpr[nfpr-2].d[1] = 0;
+    }
+#else
+    UNUSED(isfp);
+#endif
+  }
+  if (fid) lj_err_caller(L, LJ_ERR_FFI_NUMARG);  /* Too few arguments. */
+
+#if LJ_TARGET_X64 || LJ_TARGET_PPC
+  cc->nfpr = nfpr;  /* Required for vararg functions. */
+#endif
+  cc->nsp = nsp;
+  cc->spadj = (CCALL_SPS_FREE + CCALL_SPS_EXTRA)*CTSIZE_PTR;
+  if (nsp > CCALL_SPS_FREE)
+    cc->spadj += (((nsp-CCALL_SPS_FREE)*CTSIZE_PTR + 15u) & ~15u);
+  return gcsteps;
+}
+
+/* Get results from C call. */
+static int ccall_get_results(lua_State *L, CTState *cts, CType *ct,
+			     CCallState *cc, int *ret)
+{
+  CType *ctr = ctype_rawchild(cts, ct);
+  uint8_t *sp = (uint8_t *)&cc->gpr[0];
+  if (ctype_isvoid(ctr->info)) {
+    *ret = 0;  /* Zero results. */
+    return 0;  /* No additional GC step. */
+  }
+  *ret = 1;  /* One result. */
+  if (ctype_isstruct(ctr->info)) {
+    /* Return cdata object which is already on top of stack. */
+    if (!cc->retref) {
+      void *dp = cdataptr(cdataV(L->top-1));  /* Use preallocated object. */
+      CCALL_HANDLE_STRUCTRET2
+    }
+    return 1;  /* One GC step. */
+  }
+  if (ctype_iscomplex(ctr->info)) {
+    /* Return cdata object which is already on top of stack. */
+    void *dp = cdataptr(cdataV(L->top-1));  /* Use preallocated object. */
+    CCALL_HANDLE_COMPLEXRET2
+    return 1;  /* One GC step. */
+  }
+  if (LJ_BE && ctype_isinteger_or_bool(ctr->info) && ctr->size < CTSIZE_PTR)
+    sp += (CTSIZE_PTR - ctr->size);
+#if CCALL_NUM_FPR
+  if (ctype_isfp(ctr->info) || ctype_isvector(ctr->info))
+    sp = (uint8_t *)&cc->fpr[0];
+#endif
+#ifdef CCALL_HANDLE_RET
+  CCALL_HANDLE_RET
+#endif
+  /* No reference types end up here, so there's no need for the CTypeID. */
+  lua_assert(!(ctype_isrefarray(ctr->info) || ctype_isstruct(ctr->info)));
+  return lj_cconv_tv_ct(cts, ctr, 0, L->top-1, sp);
+}
+
+/* Call C function. */
+int lj_ccall_func(lua_State *L, GCcdata *cd)
+{
+  CTState *cts = ctype_cts(L);
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  CTSize sz = CTSIZE_PTR;
+  if (ctype_isptr(ct->info)) {
+    sz = ct->size;
+    ct = ctype_rawchild(cts, ct);
+  }
+  if (ctype_isfunc(ct->info)) {
+    CCallState cc;
+    int gcsteps, ret;
+    cc.func = (void (*)(void))cdata_getptr(cdataptr(cd), sz);
+    gcsteps = ccall_set_args(L, cts, ct, &cc);
+    ct = (CType *)((intptr_t)ct-(intptr_t)cts->tab);
+    cts->cb.slot = ~0u;
+    lj_vm_ffi_call(&cc);
+    if (cts->cb.slot != ~0u) {  /* Blacklist function that called a callback. */
+      TValue tv;
+      setlightudV(&tv, (void *)cc.func);
+      setboolV(lj_tab_set(L, cts->miscmap, &tv), 1);
+    }
+    ct = (CType *)((intptr_t)ct+(intptr_t)cts->tab);  /* May be reallocated. */
+    gcsteps += ccall_get_results(L, cts, ct, &cc, &ret);
+#if LJ_TARGET_X86 && LJ_ABI_WIN
+    /* Automatically detect __stdcall and fix up C function declaration. */
+    if (cc.spadj && ctype_cconv(ct->info) == CTCC_CDECL) {
+      CTF_INSERT(ct->info, CCONV, CTCC_STDCALL);
+      lj_trace_abort(G(L));
+    }
+#endif
+    while (gcsteps-- > 0)
+      lj_gc_check(L);
+    return ret;
+  }
+  return -1;  /* Not a function. */
+}
+
+#endif
diff --git a/lib/luajit/src/lj_ccall.h b/lib/luajit/src/lj_ccall.h
new file mode 100644
index 00000000..c3ea9e6f
--- /dev/null
+++ b/lib/luajit/src/lj_ccall.h
@@ -0,0 +1,171 @@
+/*
+** FFI C call handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCALL_H
+#define _LJ_CCALL_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* -- C calling conventions ----------------------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+
+#if LJ_TARGET_X86
+#define CCALL_NARG_GPR		2	/* For fastcall arguments. */
+#define CCALL_NARG_FPR		0
+#define CCALL_NRET_GPR		2
+#define CCALL_NRET_FPR		1	/* For FP results on x87 stack. */
+#define CCALL_ALIGN_STACKARG	0	/* Don't align argument on stack. */
+#elif LJ_ABI_WIN
+#define CCALL_NARG_GPR		4
+#define CCALL_NARG_FPR		4
+#define CCALL_NRET_GPR		1
+#define CCALL_NRET_FPR		1
+#define CCALL_SPS_EXTRA		4
+#else
+#define CCALL_NARG_GPR		6
+#define CCALL_NARG_FPR		8
+#define CCALL_NRET_GPR		2
+#define CCALL_NRET_FPR		2
+#define CCALL_VECTOR_REG	1	/* Pass vectors in registers. */
+#endif
+
+#define CCALL_SPS_FREE		1
+#define CCALL_ALIGN_CALLSTATE	16
+
+typedef LJ_ALIGN(16) union FPRArg {
+  double d[2];
+  float f[4];
+  uint8_t b[16];
+  uint16_t s[8];
+  int i[4];
+  int64_t l[2];
+} FPRArg;
+
+typedef intptr_t GPRArg;
+
+#elif LJ_TARGET_ARM
+
+#define CCALL_NARG_GPR		4
+#define CCALL_NRET_GPR		2	/* For softfp double. */
+#if LJ_ABI_SOFTFP
+#define CCALL_NARG_FPR		0
+#define CCALL_NRET_FPR		0
+#else
+#define CCALL_NARG_FPR		8
+#define CCALL_NRET_FPR		4
+#endif
+#define CCALL_SPS_FREE		0
+
+typedef intptr_t GPRArg;
+typedef union FPRArg {
+  double d;
+  float f[2];
+} FPRArg;
+
+#elif LJ_TARGET_PPC
+
+#define CCALL_NARG_GPR		8
+#define CCALL_NARG_FPR		8
+#define CCALL_NRET_GPR		4	/* For complex double. */
+#define CCALL_NRET_FPR		1
+#define CCALL_SPS_EXTRA		4
+#define CCALL_SPS_FREE		0
+
+typedef intptr_t GPRArg;
+typedef double FPRArg;
+
+#elif LJ_TARGET_PPCSPE
+
+#define CCALL_NARG_GPR		8
+#define CCALL_NARG_FPR		0
+#define CCALL_NRET_GPR		4	/* For softfp complex double. */
+#define CCALL_NRET_FPR		0
+#define CCALL_SPS_FREE		0	/* NYI */
+
+typedef intptr_t GPRArg;
+
+#elif LJ_TARGET_MIPS
+
+#define CCALL_NARG_GPR		4
+#define CCALL_NARG_FPR		2
+#define CCALL_NRET_GPR		2
+#define CCALL_NRET_FPR		2
+#define CCALL_SPS_EXTRA		7
+#define CCALL_SPS_FREE		1
+
+typedef intptr_t GPRArg;
+typedef union FPRArg {
+  double d;
+  struct { LJ_ENDIAN_LOHI(float f; , float g;) };
+} FPRArg;
+
+#else
+#error "Missing calling convention definitions for this architecture"
+#endif
+
+#ifndef CCALL_SPS_EXTRA
+#define CCALL_SPS_EXTRA		0
+#endif
+#ifndef CCALL_VECTOR_REG
+#define CCALL_VECTOR_REG	0
+#endif
+#ifndef CCALL_ALIGN_STACKARG
+#define CCALL_ALIGN_STACKARG	1
+#endif
+#ifndef CCALL_ALIGN_CALLSTATE
+#define CCALL_ALIGN_CALLSTATE	8
+#endif
+
+#define CCALL_NUM_GPR \
+  (CCALL_NARG_GPR > CCALL_NRET_GPR ? CCALL_NARG_GPR : CCALL_NRET_GPR)
+#define CCALL_NUM_FPR \
+  (CCALL_NARG_FPR > CCALL_NRET_FPR ? CCALL_NARG_FPR : CCALL_NRET_FPR)
+
+/* Check against constants in lj_ctype.h. */
+LJ_STATIC_ASSERT(CCALL_NUM_GPR <= CCALL_MAX_GPR);
+LJ_STATIC_ASSERT(CCALL_NUM_FPR <= CCALL_MAX_FPR);
+
+#define CCALL_MAXSTACK		32
+
+/* -- C call state -------------------------------------------------------- */
+
+typedef LJ_ALIGN(CCALL_ALIGN_CALLSTATE) struct CCallState {
+  void (*func)(void);		/* Pointer to called function. */
+  uint32_t spadj;		/* Stack pointer adjustment. */
+  uint8_t nsp;			/* Number of stack slots. */
+  uint8_t retref;		/* Return value by reference. */
+#if LJ_TARGET_X64
+  uint8_t ngpr;			/* Number of arguments in GPRs. */
+  uint8_t nfpr;			/* Number of arguments in FPRs. */
+#elif LJ_TARGET_X86
+  uint8_t resx87;		/* Result on x87 stack: 1:float, 2:double. */
+#elif LJ_TARGET_PPC
+  uint8_t nfpr;			/* Number of arguments in FPRs. */
+#endif
+#if LJ_32
+  int32_t align1;
+#endif
+#if CCALL_NUM_FPR
+  FPRArg fpr[CCALL_NUM_FPR];	/* Arguments/results in FPRs. */
+#endif
+  GPRArg gpr[CCALL_NUM_GPR];	/* Arguments/results in GPRs. */
+  GPRArg stack[CCALL_MAXSTACK];	/* Stack slots. */
+} CCallState;
+
+/* -- C call handling ----------------------------------------------------- */
+
+/* Really belongs to lj_vm.h. */
+LJ_ASMF void LJ_FASTCALL lj_vm_ffi_call(CCallState *cc);
+
+LJ_FUNC CTypeID lj_ccall_ctid_vararg(CTState *cts, cTValue *o);
+LJ_FUNC int lj_ccall_func(lua_State *L, GCcdata *cd);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_ccallback.c b/lib/luajit/src/lj_ccallback.c
new file mode 100644
index 00000000..d872d671
--- /dev/null
+++ b/lib/luajit/src/lj_ccallback.c
@@ -0,0 +1,644 @@
+/*
+** FFI C callback handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_ccall.h"
+#include "lj_ccallback.h"
+#include "lj_target.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+
+/* -- Target-specific handling of callback slots -------------------------- */
+
+#define CALLBACK_MCODE_SIZE	(LJ_PAGESIZE * LJ_NUM_CBPAGE)
+
+#if LJ_OS_NOJIT
+
+/* Disabled callback support. */
+#define CALLBACK_SLOT2OFS(slot)	(0*(slot))
+#define CALLBACK_OFS2SLOT(ofs)	(0*(ofs))
+#define CALLBACK_MAX_SLOT	0
+
+#elif LJ_TARGET_X86ORX64
+
+#define CALLBACK_MCODE_HEAD	(LJ_64 ? 8 : 0)
+#define CALLBACK_MCODE_GROUP	(-2+1+2+5+(LJ_64 ? 6 : 5))
+
+#define CALLBACK_SLOT2OFS(slot) \
+  (CALLBACK_MCODE_HEAD + CALLBACK_MCODE_GROUP*((slot)/32) + 4*(slot))
+
+static MSize CALLBACK_OFS2SLOT(MSize ofs)
+{
+  MSize group;
+  ofs -= CALLBACK_MCODE_HEAD;
+  group = ofs / (32*4 + CALLBACK_MCODE_GROUP);
+  return (ofs % (32*4 + CALLBACK_MCODE_GROUP))/4 + group*32;
+}
+
+#define CALLBACK_MAX_SLOT \
+  (((CALLBACK_MCODE_SIZE-CALLBACK_MCODE_HEAD)/(CALLBACK_MCODE_GROUP+4*32))*32)
+
+#elif LJ_TARGET_ARM
+
+#define CALLBACK_MCODE_HEAD		32
+#define CALLBACK_SLOT2OFS(slot)		(CALLBACK_MCODE_HEAD + 8*(slot))
+#define CALLBACK_OFS2SLOT(ofs)		(((ofs)-CALLBACK_MCODE_HEAD)/8)
+#define CALLBACK_MAX_SLOT		(CALLBACK_OFS2SLOT(CALLBACK_MCODE_SIZE))
+
+#elif LJ_TARGET_PPC
+
+#define CALLBACK_MCODE_HEAD		24
+#define CALLBACK_SLOT2OFS(slot)		(CALLBACK_MCODE_HEAD + 8*(slot))
+#define CALLBACK_OFS2SLOT(ofs)		(((ofs)-CALLBACK_MCODE_HEAD)/8)
+#define CALLBACK_MAX_SLOT		(CALLBACK_OFS2SLOT(CALLBACK_MCODE_SIZE))
+
+#elif LJ_TARGET_MIPS
+
+#define CALLBACK_MCODE_HEAD		24
+#define CALLBACK_SLOT2OFS(slot)		(CALLBACK_MCODE_HEAD + 8*(slot))
+#define CALLBACK_OFS2SLOT(ofs)		(((ofs)-CALLBACK_MCODE_HEAD)/8)
+#define CALLBACK_MAX_SLOT		(CALLBACK_OFS2SLOT(CALLBACK_MCODE_SIZE))
+
+#else
+
+/* Missing support for this architecture. */
+#define CALLBACK_SLOT2OFS(slot)	(0*(slot))
+#define CALLBACK_OFS2SLOT(ofs)	(0*(ofs))
+#define CALLBACK_MAX_SLOT	0
+
+#endif
+
+/* Convert callback slot number to callback function pointer. */
+static void *callback_slot2ptr(CTState *cts, MSize slot)
+{
+  return (uint8_t *)cts->cb.mcode + CALLBACK_SLOT2OFS(slot);
+}
+
+/* Convert callback function pointer to slot number. */
+MSize lj_ccallback_ptr2slot(CTState *cts, void *p)
+{
+  uintptr_t ofs = (uintptr_t)((uint8_t *)p -(uint8_t *)cts->cb.mcode);
+  if (ofs < CALLBACK_MCODE_SIZE) {
+    MSize slot = CALLBACK_OFS2SLOT((MSize)ofs);
+    if (CALLBACK_SLOT2OFS(slot) == (MSize)ofs)
+      return slot;
+  }
+  return ~0u;  /* Not a known callback function pointer. */
+}
+
+/* Initialize machine code for callback function pointers. */
+#if LJ_OS_NOJIT
+/* Disabled callback support. */
+#define callback_mcode_init(g, p)	UNUSED(p)
+#elif LJ_TARGET_X86ORX64
+static void callback_mcode_init(global_State *g, uint8_t *page)
+{
+  uint8_t *p = page;
+  uint8_t *target = (uint8_t *)(void *)lj_vm_ffi_callback;
+  MSize slot;
+#if LJ_64
+  *(void **)p = target; p += 8;
+#endif
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    /* mov al, slot; jmp group */
+    *p++ = XI_MOVrib | RID_EAX; *p++ = (uint8_t)slot;
+    if ((slot & 31) == 31 || slot == CALLBACK_MAX_SLOT-1) {
+      /* push ebp/rbp; mov ah, slot>>8; mov ebp, &g. */
+      *p++ = XI_PUSH + RID_EBP;
+      *p++ = XI_MOVrib | (RID_EAX+4); *p++ = (uint8_t)(slot >> 8);
+      *p++ = XI_MOVri | RID_EBP;
+      *(int32_t *)p = i32ptr(g); p += 4;
+#if LJ_64
+      /* jmp [rip-pageofs] where lj_vm_ffi_callback is stored. */
+      *p++ = XI_GROUP5; *p++ = XM_OFS0 + (XOg_JMP<<3) + RID_EBP;
+      *(int32_t *)p = (int32_t)(page-(p+4)); p += 4;
+#else
+      /* jmp lj_vm_ffi_callback. */
+      *p++ = XI_JMP; *(int32_t *)p = target-(p+4); p += 4;
+#endif
+    } else {
+      *p++ = XI_JMPs; *p++ = (uint8_t)((2+2)*(31-(slot&31)) - 2);
+    }
+  }
+  lua_assert(p - page <= CALLBACK_MCODE_SIZE);
+}
+#elif LJ_TARGET_ARM
+static void callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  void *target = (void *)lj_vm_ffi_callback;
+  MSize slot;
+  /* This must match with the saveregs macro in buildvm_arm.dasc. */
+  *p++ = ARMI_SUB|ARMF_D(RID_R12)|ARMF_N(RID_R12)|ARMF_M(RID_PC);
+  *p++ = ARMI_PUSH|ARMF_N(RID_SP)|RSET_RANGE(RID_R4,RID_R11+1)|RID2RSET(RID_LR);
+  *p++ = ARMI_SUB|ARMI_K12|ARMF_D(RID_R12)|ARMF_N(RID_R12)|CALLBACK_MCODE_HEAD;
+  *p++ = ARMI_STR|ARMI_LS_P|ARMI_LS_W|ARMF_D(RID_R12)|ARMF_N(RID_SP)|(CFRAME_SIZE-4*9);
+  *p++ = ARMI_LDR|ARMI_LS_P|ARMI_LS_U|ARMF_D(RID_R12)|ARMF_N(RID_PC);
+  *p++ = ARMI_LDR|ARMI_LS_P|ARMI_LS_U|ARMF_D(RID_PC)|ARMF_N(RID_PC);
+  *p++ = u32ptr(g);
+  *p++ = u32ptr(target);
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p++ = ARMI_MOV|ARMF_D(RID_R12)|ARMF_M(RID_PC);
+    *p = ARMI_B | ((page-p-2) & 0x00ffffffu);
+    p++;
+  }
+  lua_assert(p - page <= CALLBACK_MCODE_SIZE);
+}
+#elif LJ_TARGET_PPC
+static void callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  void *target = (void *)lj_vm_ffi_callback;
+  MSize slot;
+  *p++ = PPCI_LIS | PPCF_T(RID_TMP) | (u32ptr(target) >> 16);
+  *p++ = PPCI_LIS | PPCF_T(RID_R12) | (u32ptr(g) >> 16);
+  *p++ = PPCI_ORI | PPCF_A(RID_TMP)|PPCF_T(RID_TMP) | (u32ptr(target) & 0xffff);
+  *p++ = PPCI_ORI | PPCF_A(RID_R12)|PPCF_T(RID_R12) | (u32ptr(g) & 0xffff);
+  *p++ = PPCI_MTCTR | PPCF_T(RID_TMP);
+  *p++ = PPCI_BCTR;
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p++ = PPCI_LI | PPCF_T(RID_R11) | slot;
+    *p = PPCI_B | (((page-p) & 0x00ffffffu) << 2);
+    p++;
+  }
+  lua_assert(p - page <= CALLBACK_MCODE_SIZE);
+}
+#elif LJ_TARGET_MIPS
+static void callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  void *target = (void *)lj_vm_ffi_callback;
+  MSize slot;
+  *p++ = MIPSI_SW | MIPSF_T(RID_R1)|MIPSF_S(RID_SP) | 0;
+  *p++ = MIPSI_LUI | MIPSF_T(RID_R3) | (u32ptr(target) >> 16);
+  *p++ = MIPSI_LUI | MIPSF_T(RID_R2) | (u32ptr(g) >> 16);
+  *p++ = MIPSI_ORI | MIPSF_T(RID_R3)|MIPSF_S(RID_R3) |(u32ptr(target)&0xffff);
+  *p++ = MIPSI_JR | MIPSF_S(RID_R3);
+  *p++ = MIPSI_ORI | MIPSF_T(RID_R2)|MIPSF_S(RID_R2) | (u32ptr(g)&0xffff);
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p = MIPSI_B | ((page-p-1) & 0x0000ffffu);
+    p++;
+    *p++ = MIPSI_LI | MIPSF_T(RID_R1) | slot;
+  }
+  lua_assert(p - page <= CALLBACK_MCODE_SIZE);
+}
+#else
+/* Missing support for this architecture. */
+#define callback_mcode_init(g, p)	UNUSED(p)
+#endif
+
+/* -- Machine code management --------------------------------------------- */
+
+#if LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#elif LJ_TARGET_POSIX
+
+#include <sys/mman.h>
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS   MAP_ANON
+#endif
+
+#endif
+
+/* Allocate and initialize area for callback function pointers. */
+static void callback_mcode_new(CTState *cts)
+{
+  size_t sz = (size_t)CALLBACK_MCODE_SIZE;
+  void *p;
+  if (CALLBACK_MAX_SLOT == 0)
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+#if LJ_TARGET_WINDOWS
+  p = VirtualAlloc(NULL, sz, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
+  if (!p)
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+#elif LJ_TARGET_POSIX
+  p = mmap(NULL, sz, (PROT_READ|PROT_WRITE), MAP_PRIVATE|MAP_ANONYMOUS,
+	   -1, 0);
+  if (p == MAP_FAILED)
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+#else
+  /* Fallback allocator. Fails if memory is not executable by default. */
+  p = lj_mem_new(cts->L, sz);
+#endif
+  cts->cb.mcode = p;
+  callback_mcode_init(cts->g, p);
+  lj_mcode_sync(p, (char *)p + sz);
+#if LJ_TARGET_WINDOWS
+  {
+    DWORD oprot;
+    VirtualProtect(p, sz, PAGE_EXECUTE_READ, &oprot);
+  }
+#elif LJ_TARGET_POSIX
+  mprotect(p, sz, (PROT_READ|PROT_EXEC));
+#endif
+}
+
+/* Free area for callback function pointers. */
+void lj_ccallback_mcode_free(CTState *cts)
+{
+  size_t sz = (size_t)CALLBACK_MCODE_SIZE;
+  void *p = cts->cb.mcode;
+  if (p == NULL) return;
+#if LJ_TARGET_WINDOWS
+  VirtualFree(p, 0, MEM_RELEASE);
+  UNUSED(sz);
+#elif LJ_TARGET_POSIX
+  munmap(p, sz);
+#else
+  lj_mem_free(cts->g, p, sz);
+#endif
+}
+
+/* -- C callback entry ---------------------------------------------------- */
+
+/* Target-specific handling of register arguments. Similar to lj_ccall.c. */
+#if LJ_TARGET_X86
+
+#define CALLBACK_HANDLE_REGARG \
+  if (!isfp) {  /* Only non-FP values may be passed in registers. */ \
+    if (n > 1) {  /* Anything > 32 bit is passed on the stack. */ \
+      if (!LJ_ABI_WIN) ngpr = maxgpr;  /* Prevent reordering. */ \
+    } else if (ngpr + 1 <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_X64 && LJ_ABI_WIN
+
+/* Windows/x64 argument registers are strictly positional (use ngpr). */
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (ngpr < maxgpr) { sp = &cts->cb.fpr[ngpr++]; UNUSED(nfpr); goto done; } \
+  } else { \
+    if (ngpr < maxgpr) { sp = &cts->cb.gpr[ngpr++]; goto done; } \
+  }
+
+#elif LJ_TARGET_X64
+
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (nfpr + n <= CCALL_NARG_FPR) { \
+      sp = &cts->cb.fpr[nfpr]; \
+      nfpr += n; \
+      goto done; \
+    } \
+  } else { \
+    if (ngpr + n <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_ARM
+
+#if LJ_ABI_SOFTFP
+
+#define CALLBACK_HANDLE_REGARG_FP1	UNUSED(isfp);
+#define CALLBACK_HANDLE_REGARG_FP2
+
+#else
+
+#define CALLBACK_HANDLE_REGARG_FP1 \
+  if (isfp) { \
+    if (n == 1) { \
+      if (fprodd) { \
+	sp = &cts->cb.fpr[fprodd-1]; \
+	fprodd = 0; \
+	goto done; \
+      } else if (nfpr + 1 <= CCALL_NARG_FPR) { \
+	sp = &cts->cb.fpr[nfpr++]; \
+	fprodd = nfpr; \
+	goto done; \
+      } \
+    } else { \
+      if (nfpr + 1 <= CCALL_NARG_FPR) { \
+	sp = &cts->cb.fpr[nfpr++]; \
+	goto done; \
+      } \
+    } \
+    fprodd = 0;  /* No reordering after the first FP value is on stack. */ \
+  } else {
+
+#define CALLBACK_HANDLE_REGARG_FP2	}
+
+#endif
+
+#define CALLBACK_HANDLE_REGARG \
+  CALLBACK_HANDLE_REGARG_FP1 \
+  if (n > 1) ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+  if (ngpr + n <= maxgpr) { \
+    sp = &cts->cb.gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  } CALLBACK_HANDLE_REGARG_FP2
+
+#elif LJ_TARGET_PPC
+
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (nfpr + 1 <= CCALL_NARG_FPR) { \
+      sp = &cts->cb.fpr[nfpr++]; \
+      cta = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */ \
+      goto done; \
+    } \
+  } else {  /* Try to pass argument in GPRs. */ \
+    if (n > 1) { \
+      lua_assert(ctype_isinteger(cta->info) && n == 2);  /* int64_t. */ \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align int64_t to regpair. */ \
+    } \
+    if (ngpr + n <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#define CALLBACK_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    *(double *)dp = *(float *)dp;  /* FPRs always hold doubles. */
+
+#elif LJ_TARGET_MIPS
+
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp && nfpr < CCALL_NARG_FPR) {  /* Try to pass argument in FPRs. */ \
+    sp = (void *)((uint8_t *)&cts->cb.fpr[nfpr] + ((LJ_BE && n==1) ? 4 : 0)); \
+    nfpr++; ngpr += n; \
+    goto done; \
+  } else {  /* Try to pass argument in GPRs. */ \
+    nfpr = CCALL_NARG_FPR; \
+    if (n > 1) ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+    if (ngpr + n <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#define CALLBACK_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    ((float *)dp)[1] = *(float *)dp;
+
+#else
+#error "Missing calling convention definitions for this architecture"
+#endif
+
+/* Convert and push callback arguments to Lua stack. */
+static void callback_conv_args(CTState *cts, lua_State *L)
+{
+  TValue *o = L->top;
+  intptr_t *stack = cts->cb.stack;
+  MSize slot = cts->cb.slot;
+  CTypeID id = 0, rid, fid;
+  int gcsteps = 0;
+  CType *ct;
+  GCfunc *fn;
+  MSize ngpr = 0, nsp = 0, maxgpr = CCALL_NARG_GPR;
+#if CCALL_NARG_FPR
+  MSize nfpr = 0;
+#if LJ_TARGET_ARM
+  MSize fprodd = 0;
+#endif
+#endif
+
+  if (slot < cts->cb.sizeid && (id = cts->cb.cbid[slot]) != 0) {
+    ct = ctype_get(cts, id);
+    rid = ctype_cid(ct->info);
+    fn = funcV(lj_tab_getint(cts->miscmap, (int32_t)slot));
+  } else {  /* Must set up frame first, before throwing the error. */
+    ct = NULL;
+    rid = 0;
+    fn = (GCfunc *)L;
+  }
+  o->u32.lo = LJ_CONT_FFI_CALLBACK;  /* Continuation returns from callback. */
+  o->u32.hi = rid;  /* Return type. x86: +(spadj<<16). */
+  o++;
+  setframe_gc(o, obj2gco(fn));
+  setframe_ftsz(o, (int)((char *)(o+1) - (char *)L->base) + FRAME_CONT);
+  L->top = L->base = ++o;
+  if (!ct)
+    lj_err_caller(cts->L, LJ_ERR_FFI_BADCBACK);
+  if (isluafunc(fn))
+    setcframe_pc(L->cframe, proto_bc(funcproto(fn))+1);
+  lj_state_checkstack(L, LUA_MINSTACK);  /* May throw. */
+  o = L->base;  /* Might have been reallocated. */
+
+#if LJ_TARGET_X86
+  /* x86 has several different calling conventions. */
+  switch (ctype_cconv(ct->info)) {
+  case CTCC_FASTCALL: maxgpr = 2; break;
+  case CTCC_THISCALL: maxgpr = 1; break;
+  default: maxgpr = 0; break;
+  }
+#endif
+
+  fid = ct->sib;
+  while (fid) {
+    CType *ctf = ctype_get(cts, fid);
+    if (!ctype_isattrib(ctf->info)) {
+      CType *cta;
+      void *sp;
+      CTSize sz;
+      int isfp;
+      MSize n;
+      lua_assert(ctype_isfield(ctf->info));
+      cta = ctype_rawchild(cts, ctf);
+      isfp = ctype_isfp(cta->info);
+      sz = (cta->size + CTSIZE_PTR-1) & ~(CTSIZE_PTR-1);
+      n = sz / CTSIZE_PTR;  /* Number of GPRs or stack slots needed. */
+
+      CALLBACK_HANDLE_REGARG  /* Handle register arguments. */
+
+      /* Otherwise pass argument on stack. */
+      if (CCALL_ALIGN_STACKARG && LJ_32 && sz == 8)
+	nsp = (nsp + 1) & ~1u;  /* Align 64 bit argument on stack. */
+      sp = &stack[nsp];
+      nsp += n;
+
+    done:
+      if (LJ_BE && cta->size < CTSIZE_PTR)
+	sp = (void *)((uint8_t *)sp + CTSIZE_PTR-cta->size);
+      gcsteps += lj_cconv_tv_ct(cts, cta, 0, o++, sp);
+    }
+    fid = ctf->sib;
+  }
+  L->top = o;
+#if LJ_TARGET_X86
+  /* Store stack adjustment for returns from non-cdecl callbacks. */
+  if (ctype_cconv(ct->info) != CTCC_CDECL)
+    (L->base-2)->u32.hi |= (nsp << (16+2));
+#endif
+  while (gcsteps-- > 0)
+    lj_gc_check(L);
+}
+
+/* Convert Lua object to callback result. */
+static void callback_conv_result(CTState *cts, lua_State *L, TValue *o)
+{
+  CType *ctr = ctype_raw(cts, (uint16_t)(L->base-2)->u32.hi);
+#if LJ_TARGET_X86
+  cts->cb.gpr[2] = 0;
+#endif
+  if (!ctype_isvoid(ctr->info)) {
+    uint8_t *dp = (uint8_t *)&cts->cb.gpr[0];
+#if CCALL_NUM_FPR
+    if (ctype_isfp(ctr->info))
+      dp = (uint8_t *)&cts->cb.fpr[0];
+#endif
+    lj_cconv_ct_tv(cts, ctr, dp, o, 0);
+#ifdef CALLBACK_HANDLE_RET
+    CALLBACK_HANDLE_RET
+#endif
+    /* Extend returned integers to (at least) 32 bits. */
+    if (ctype_isinteger_or_bool(ctr->info) && ctr->size < 4) {
+      if (ctr->info & CTF_UNSIGNED)
+	*(uint32_t *)dp = ctr->size == 1 ? (uint32_t)*(uint8_t *)dp :
+					   (uint32_t)*(uint16_t *)dp;
+      else
+	*(int32_t *)dp = ctr->size == 1 ? (int32_t)*(int8_t *)dp :
+					  (int32_t)*(int16_t *)dp;
+    }
+#if LJ_TARGET_X86
+    if (ctype_isfp(ctr->info))
+      cts->cb.gpr[2] = ctr->size == sizeof(float) ? 1 : 2;
+#endif
+  }
+}
+
+/* Enter callback. */
+lua_State * LJ_FASTCALL lj_ccallback_enter(CTState *cts, void *cf)
+{
+  lua_State *L = cts->L;
+  global_State *g = cts->g;
+  lua_assert(L != NULL);
+  if (gcref(g->jit_L)) {
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_FFI_BADCBACK));
+    if (g->panic) g->panic(L);
+    exit(EXIT_FAILURE);
+  }
+  lj_trace_abort(g);  /* Never record across callback. */
+  /* Setup C frame. */
+  cframe_prev(cf) = L->cframe;
+  setcframe_L(cf, L);
+  cframe_errfunc(cf) = -1;
+  cframe_nres(cf) = 0;
+  L->cframe = cf;
+  callback_conv_args(cts, L);
+  return L;  /* Now call the function on this stack. */
+}
+
+/* Leave callback. */
+void LJ_FASTCALL lj_ccallback_leave(CTState *cts, TValue *o)
+{
+  lua_State *L = cts->L;
+  GCfunc *fn;
+  TValue *obase = L->base;
+  L->base = L->top;  /* Keep continuation frame for throwing errors. */
+  if (o >= L->base) {
+    /* PC of RET* is lost. Point to last line for result conv. errors. */
+    fn = curr_func(L);
+    if (isluafunc(fn)) {
+      GCproto *pt = funcproto(fn);
+      setcframe_pc(L->cframe, proto_bc(pt)+pt->sizebc+1);
+    }
+  }
+  callback_conv_result(cts, L, o);
+  /* Finally drop C frame and continuation frame. */
+  L->cframe = cframe_prev(L->cframe);
+  L->top -= 2;
+  L->base = obase;
+  cts->cb.slot = 0;  /* Blacklist C function that called the callback. */
+}
+
+/* -- C callback management ----------------------------------------------- */
+
+/* Get an unused slot in the callback slot table. */
+static MSize callback_slot_new(CTState *cts, CType *ct)
+{
+  CTypeID id = ctype_typeid(cts, ct);
+  CTypeID1 *cbid = cts->cb.cbid;
+  MSize top;
+  for (top = cts->cb.topid; top < cts->cb.sizeid; top++)
+    if (LJ_LIKELY(cbid[top] == 0))
+      goto found;
+#if CALLBACK_MAX_SLOT
+  if (top >= CALLBACK_MAX_SLOT)
+#endif
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+  if (!cts->cb.mcode)
+    callback_mcode_new(cts);
+  lj_mem_growvec(cts->L, cbid, cts->cb.sizeid, CALLBACK_MAX_SLOT, CTypeID1);
+  cts->cb.cbid = cbid;
+  memset(cbid+top, 0, (cts->cb.sizeid-top)*sizeof(CTypeID1));
+found:
+  cbid[top] = id;
+  cts->cb.topid = top+1;
+  return top;
+}
+
+/* Check for function pointer and supported argument/result types. */
+static CType *callback_checkfunc(CTState *cts, CType *ct)
+{
+  int narg = 0;
+  if (!ctype_isptr(ct->info) || (LJ_64 && ct->size != CTSIZE_PTR))
+    return NULL;
+  ct = ctype_rawchild(cts, ct);
+  if (ctype_isfunc(ct->info)) {
+    CType *ctr = ctype_rawchild(cts, ct);
+    CTypeID fid = ct->sib;
+    if (!(ctype_isvoid(ctr->info) || ctype_isenum(ctr->info) ||
+	  ctype_isptr(ctr->info) || (ctype_isnum(ctr->info) && ctr->size <= 8)))
+      return NULL;
+    if ((ct->info & CTF_VARARG))
+      return NULL;
+    while (fid) {
+      CType *ctf = ctype_get(cts, fid);
+      if (!ctype_isattrib(ctf->info)) {
+	CType *cta;
+	lua_assert(ctype_isfield(ctf->info));
+	cta = ctype_rawchild(cts, ctf);
+	if (!(ctype_isenum(cta->info) || ctype_isptr(cta->info) ||
+	      (ctype_isnum(cta->info) && cta->size <= 8)) ||
+	    ++narg >= LUA_MINSTACK-3)
+	  return NULL;
+      }
+      fid = ctf->sib;
+    }
+    return ct;
+  }
+  return NULL;
+}
+
+/* Create a new callback and return the callback function pointer. */
+void *lj_ccallback_new(CTState *cts, CType *ct, GCfunc *fn)
+{
+  ct = callback_checkfunc(cts, ct);
+  if (ct) {
+    MSize slot = callback_slot_new(cts, ct);
+    GCtab *t = cts->miscmap;
+    setfuncV(cts->L, lj_tab_setint(cts->L, t, (int32_t)slot), fn);
+    lj_gc_anybarriert(cts->L, t);
+    return callback_slot2ptr(cts, slot);
+  }
+  return NULL;  /* Bad conversion. */
+}
+
+#endif
diff --git a/lib/luajit/src/lj_ccallback.h b/lib/luajit/src/lj_ccallback.h
new file mode 100644
index 00000000..45b5ff02
--- /dev/null
+++ b/lib/luajit/src/lj_ccallback.h
@@ -0,0 +1,25 @@
+/*
+** FFI C callback handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCALLBACK_H
+#define _LJ_CCALLBACK_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Really belongs to lj_vm.h. */
+LJ_ASMF void lj_vm_ffi_callback(void);
+
+LJ_FUNC MSize lj_ccallback_ptr2slot(CTState *cts, void *p);
+LJ_FUNCA lua_State * LJ_FASTCALL lj_ccallback_enter(CTState *cts, void *cf);
+LJ_FUNCA void LJ_FASTCALL lj_ccallback_leave(CTState *cts, TValue *o);
+LJ_FUNC void *lj_ccallback_new(CTState *cts, CType *ct, GCfunc *fn);
+LJ_FUNC void lj_ccallback_mcode_free(CTState *cts);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_cconv.c b/lib/luajit/src/lj_cconv.c
new file mode 100644
index 00000000..de4938e4
--- /dev/null
+++ b/lib/luajit/src/lj_cconv.c
@@ -0,0 +1,751 @@
+/*
+** C type conversions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_cconv.h"
+#include "lj_ccallback.h"
+
+/* -- Conversion errors --------------------------------------------------- */
+
+/* Bad conversion. */
+LJ_NORET static void cconv_err_conv(CTState *cts, CType *d, CType *s,
+				    CTInfo flags)
+{
+  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
+  const char *src;
+  if ((flags & CCF_FROMTV))
+    src = lj_obj_typename[1+(ctype_isnum(s->info) ? LUA_TNUMBER :
+			     ctype_isarray(s->info) ? LUA_TSTRING : LUA_TNIL)];
+  else
+    src = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, s), NULL));
+  if (CCF_GETARG(flags))
+    lj_err_argv(cts->L, CCF_GETARG(flags), LJ_ERR_FFI_BADCONV, src, dst);
+  else
+    lj_err_callerv(cts->L, LJ_ERR_FFI_BADCONV, src, dst);
+}
+
+/* Bad conversion from TValue. */
+LJ_NORET static void cconv_err_convtv(CTState *cts, CType *d, TValue *o,
+				      CTInfo flags)
+{
+  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
+  const char *src = lj_typename(o);
+  if (CCF_GETARG(flags))
+    lj_err_argv(cts->L, CCF_GETARG(flags), LJ_ERR_FFI_BADCONV, src, dst);
+  else
+    lj_err_callerv(cts->L, LJ_ERR_FFI_BADCONV, src, dst);
+}
+
+/* Initializer overflow. */
+LJ_NORET static void cconv_err_initov(CTState *cts, CType *d)
+{
+  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
+  lj_err_callerv(cts->L, LJ_ERR_FFI_INITOV, dst);
+}
+
+/* -- C type compatibility checks ----------------------------------------- */
+
+/* Get raw type and qualifiers for a child type. Resolves enums, too. */
+static CType *cconv_childqual(CTState *cts, CType *ct, CTInfo *qual)
+{
+  ct = ctype_child(cts, ct);
+  for (;;) {
+    if (ctype_isattrib(ct->info)) {
+      if (ctype_attrib(ct->info) == CTA_QUAL) *qual |= ct->size;
+    } else if (!ctype_isenum(ct->info)) {
+      break;
+    }
+    ct = ctype_child(cts, ct);
+  }
+  *qual |= (ct->info & CTF_QUAL);
+  return ct;
+}
+
+/* Check for compatible types when converting to a pointer.
+** Note: these checks are more relaxed than what C99 mandates.
+*/
+int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags)
+{
+  if (!((flags & CCF_CAST) || d == s)) {
+    CTInfo dqual = 0, squal = 0;
+    d = cconv_childqual(cts, d, &dqual);
+    if (!ctype_isstruct(s->info))
+      s = cconv_childqual(cts, s, &squal);
+    if ((flags & CCF_SAME)) {
+      if (dqual != squal)
+	return 0;  /* Different qualifiers. */
+    } else if (!(flags & CCF_IGNQUAL)) {
+      if ((dqual & squal) != squal)
+	return 0;  /* Discarded qualifiers. */
+      if (ctype_isvoid(d->info) || ctype_isvoid(s->info))
+	return 1;  /* Converting to/from void * is always ok. */
+    }
+    if (ctype_type(d->info) != ctype_type(s->info) ||
+	d->size != s->size)
+      return 0;  /* Different type or different size. */
+    if (ctype_isnum(d->info)) {
+      if (((d->info ^ s->info) & (CTF_BOOL|CTF_FP)))
+	return 0;  /* Different numeric types. */
+    } else if (ctype_ispointer(d->info)) {
+      /* Check child types for compatibility. */
+      return lj_cconv_compatptr(cts, d, s, flags|CCF_SAME);
+    } else if (ctype_isstruct(d->info)) {
+      if (d != s)
+	return 0;  /* Must be exact same type for struct/union. */
+    } else if (ctype_isfunc(d->info)) {
+      /* NYI: structural equality of functions. */
+    }
+  }
+  return 1;  /* Types are compatible. */
+}
+
+/* -- C type to C type conversion ----------------------------------------- */
+
+/* Convert C type to C type. Caveat: expects to get the raw CType!
+**
+** Note: This is only used by the interpreter and not optimized at all.
+** The JIT compiler will do a much better job specializing for each case.
+*/
+void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
+		    uint8_t *dp, uint8_t *sp, CTInfo flags)
+{
+  CTSize dsize = d->size, ssize = s->size;
+  CTInfo dinfo = d->info, sinfo = s->info;
+  void *tmpptr;
+
+  lua_assert(!ctype_isenum(dinfo) && !ctype_isenum(sinfo));
+  lua_assert(!ctype_isattrib(dinfo) && !ctype_isattrib(sinfo));
+
+  if (ctype_type(dinfo) > CT_MAYCONVERT || ctype_type(sinfo) > CT_MAYCONVERT)
+    goto err_conv;
+
+  /* Some basic sanity checks. */
+  lua_assert(!ctype_isnum(dinfo) || dsize > 0);
+  lua_assert(!ctype_isnum(sinfo) || ssize > 0);
+  lua_assert(!ctype_isbool(dinfo) || dsize == 1 || dsize == 4);
+  lua_assert(!ctype_isbool(sinfo) || ssize == 1 || ssize == 4);
+  lua_assert(!ctype_isinteger(dinfo) || (1u<<lj_fls(dsize)) == dsize);
+  lua_assert(!ctype_isinteger(sinfo) || (1u<<lj_fls(ssize)) == ssize);
+
+  switch (cconv_idx2(dinfo, sinfo)) {
+  /* Destination is a bool. */
+  case CCX(B, B):
+    /* Source operand is already normalized. */
+    if (dsize == 1) *dp = *sp; else *(int *)dp = *sp;
+    break;
+  case CCX(B, I): {
+    MSize i;
+    uint8_t b = 0;
+    for (i = 0; i < ssize; i++) b |= sp[i];
+    b = (b != 0);
+    if (dsize == 1) *dp = b; else *(int *)dp = b;
+    break;
+    }
+  case CCX(B, F): {
+    uint8_t b;
+    if (ssize == sizeof(double)) b = (*(double *)sp != 0);
+    else if (ssize == sizeof(float)) b = (*(float *)sp != 0);
+    else goto err_conv;  /* NYI: long double. */
+    if (dsize == 1) *dp = b; else *(int *)dp = b;
+    break;
+    }
+
+  /* Destination is an integer. */
+  case CCX(I, B):
+  case CCX(I, I):
+  conv_I_I:
+    if (dsize > ssize) {  /* Zero-extend or sign-extend LSB. */
+#if LJ_LE
+      uint8_t fill = (!(sinfo & CTF_UNSIGNED) && (sp[ssize-1]&0x80)) ? 0xff : 0;
+      memcpy(dp, sp, ssize);
+      memset(dp + ssize, fill, dsize-ssize);
+#else
+      uint8_t fill = (!(sinfo & CTF_UNSIGNED) && (sp[0]&0x80)) ? 0xff : 0;
+      memset(dp, fill, dsize-ssize);
+      memcpy(dp + (dsize-ssize), sp, ssize);
+#endif
+    } else {  /* Copy LSB. */
+#if LJ_LE
+      memcpy(dp, sp, dsize);
+#else
+      memcpy(dp, sp + (ssize-dsize), dsize);
+#endif
+    }
+    break;
+  case CCX(I, F): {
+    double n;  /* Always convert via double. */
+  conv_I_F:
+    /* Convert source to double. */
+    if (ssize == sizeof(double)) n = *(double *)sp;
+    else if (ssize == sizeof(float)) n = (double)*(float *)sp;
+    else goto err_conv;  /* NYI: long double. */
+    /* Then convert double to integer. */
+    /* The conversion must exactly match the semantics of JIT-compiled code! */
+    if (dsize < 4 || (dsize == 4 && !(dinfo & CTF_UNSIGNED))) {
+      int32_t i = (int32_t)n;
+      if (dsize == 4) *(int32_t *)dp = i;
+      else if (dsize == 2) *(int16_t *)dp = (int16_t)i;
+      else *(int8_t *)dp = (int8_t)i;
+    } else if (dsize == 4) {
+      *(uint32_t *)dp = (uint32_t)n;
+    } else if (dsize == 8) {
+      if (!(dinfo & CTF_UNSIGNED))
+	*(int64_t *)dp = (int64_t)n;
+      else
+	*(uint64_t *)dp = lj_num2u64(n);
+    } else {
+      goto err_conv;  /* NYI: conversion to >64 bit integers. */
+    }
+    break;
+    }
+  case CCX(I, C):
+    s = ctype_child(cts, s);
+    sinfo = s->info;
+    ssize = s->size;
+    goto conv_I_F;  /* Just convert re. */
+  case CCX(I, P):
+    if (!(flags & CCF_CAST)) goto err_conv;
+    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    goto conv_I_I;
+  case CCX(I, A):
+    if (!(flags & CCF_CAST)) goto err_conv;
+    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    ssize = CTSIZE_PTR;
+    tmpptr = sp;
+    sp = (uint8_t *)&tmpptr;
+    goto conv_I_I;
+
+  /* Destination is a floating-point number. */
+  case CCX(F, B):
+  case CCX(F, I): {
+    double n;  /* Always convert via double. */
+  conv_F_I:
+    /* First convert source to double. */
+    /* The conversion must exactly match the semantics of JIT-compiled code! */
+    if (ssize < 4 || (ssize == 4 && !(sinfo & CTF_UNSIGNED))) {
+      int32_t i;
+      if (ssize == 4) {
+	i = *(int32_t *)sp;
+      } else if (!(sinfo & CTF_UNSIGNED)) {
+	if (ssize == 2) i = *(int16_t *)sp;
+	else i = *(int8_t *)sp;
+      } else {
+	if (ssize == 2) i = *(uint16_t *)sp;
+	else i = *(uint8_t *)sp;
+      }
+      n = (double)i;
+    } else if (ssize == 4) {
+      n = (double)*(uint32_t *)sp;
+    } else if (ssize == 8) {
+      if (!(sinfo & CTF_UNSIGNED)) n = (double)*(int64_t *)sp;
+      else n = (double)*(uint64_t *)sp;
+    } else {
+      goto err_conv;  /* NYI: conversion from >64 bit integers. */
+    }
+    /* Convert double to destination. */
+    if (dsize == sizeof(double)) *(double *)dp = n;
+    else if (dsize == sizeof(float)) *(float *)dp = (float)n;
+    else goto err_conv;  /* NYI: long double. */
+    break;
+    }
+  case CCX(F, F): {
+    double n;  /* Always convert via double. */
+  conv_F_F:
+    if (ssize == dsize) goto copyval;
+    /* Convert source to double. */
+    if (ssize == sizeof(double)) n = *(double *)sp;
+    else if (ssize == sizeof(float)) n = (double)*(float *)sp;
+    else goto err_conv;  /* NYI: long double. */
+    /* Convert double to destination. */
+    if (dsize == sizeof(double)) *(double *)dp = n;
+    else if (dsize == sizeof(float)) *(float *)dp = (float)n;
+    else goto err_conv;  /* NYI: long double. */
+    break;
+    }
+  case CCX(F, C):
+    s = ctype_child(cts, s);
+    sinfo = s->info;
+    ssize = s->size;
+    goto conv_F_F;  /* Ignore im, and convert from re. */
+
+  /* Destination is a complex number. */
+  case CCX(C, I):
+    d = ctype_child(cts, d);
+    dinfo = d->info;
+    dsize = d->size;
+    memset(dp + dsize, 0, dsize);  /* Clear im. */
+    goto conv_F_I;  /* Convert to re. */
+  case CCX(C, F):
+    d = ctype_child(cts, d);
+    dinfo = d->info;
+    dsize = d->size;
+    memset(dp + dsize, 0, dsize);  /* Clear im. */
+    goto conv_F_F;  /* Convert to re. */
+
+  case CCX(C, C):
+    if (dsize != ssize) {  /* Different types: convert re/im separately. */
+      CType *dc = ctype_child(cts, d);
+      CType *sc = ctype_child(cts, s);
+      lj_cconv_ct_ct(cts, dc, sc, dp, sp, flags);
+      lj_cconv_ct_ct(cts, dc, sc, dp + dc->size, sp + sc->size, flags);
+      return;
+    }
+    goto copyval;  /* Otherwise this is easy. */
+
+  /* Destination is a vector. */
+  case CCX(V, I):
+  case CCX(V, F):
+  case CCX(V, C): {
+    CType *dc = ctype_child(cts, d);
+    CTSize esize;
+    /* First convert the scalar to the first element. */
+    lj_cconv_ct_ct(cts, dc, s, dp, sp, flags);
+    /* Then replicate it to the other elements (splat). */
+    for (sp = dp, esize = dc->size; dsize > esize; dsize -= esize) {
+      dp += esize;
+      memcpy(dp, sp, esize);
+    }
+    break;
+    }
+
+  case CCX(V, V):
+    /* Copy same-sized vectors, even for different lengths/element-types. */
+    if (dsize != ssize) goto err_conv;
+    goto copyval;
+
+  /* Destination is a pointer. */
+  case CCX(P, I):
+    if (!(flags & CCF_CAST)) goto err_conv;
+    dinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    goto conv_I_I;
+
+  case CCX(P, F):
+    if (!(flags & CCF_CAST) || !(flags & CCF_FROMTV)) goto err_conv;
+    /* The signed conversion is cheaper. x64 really has 47 bit pointers. */
+    dinfo = CTINFO(CT_NUM, (LJ_64 && dsize == 8) ? 0 : CTF_UNSIGNED);
+    goto conv_I_F;
+
+  case CCX(P, P):
+    if (!lj_cconv_compatptr(cts, d, s, flags)) goto err_conv;
+    cdata_setptr(dp, dsize, cdata_getptr(sp, ssize));
+    break;
+
+  case CCX(P, A):
+  case CCX(P, S):
+    if (!lj_cconv_compatptr(cts, d, s, flags)) goto err_conv;
+    cdata_setptr(dp, dsize, sp);
+    break;
+
+  /* Destination is an array. */
+  case CCX(A, A):
+    if ((flags & CCF_CAST) || (d->info & CTF_VLA) || dsize != ssize ||
+	d->size == CTSIZE_INVALID || !lj_cconv_compatptr(cts, d, s, flags))
+      goto err_conv;
+    goto copyval;
+
+  /* Destination is a struct/union. */
+  case CCX(S, S):
+    if ((flags & CCF_CAST) || (d->info & CTF_VLA) || d != s)
+      goto err_conv;  /* Must be exact same type. */
+copyval:  /* Copy value. */
+    lua_assert(dsize == ssize);
+    memcpy(dp, sp, dsize);
+    break;
+
+  default:
+  err_conv:
+    cconv_err_conv(cts, d, s, flags);
+  }
+}
+
+/* -- C type to TValue conversion ----------------------------------------- */
+
+/* Convert C type to TValue. Caveat: expects to get the raw CType! */
+int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
+		   TValue *o, uint8_t *sp)
+{
+  CTInfo sinfo = s->info;
+  if (ctype_isnum(sinfo)) {
+    if (!ctype_isbool(sinfo)) {
+      if (ctype_isinteger(sinfo) && s->size > 4) goto copyval;
+      if (LJ_DUALNUM && ctype_isinteger(sinfo)) {
+	int32_t i;
+	lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT32), s,
+		       (uint8_t *)&i, sp, 0);
+	if ((sinfo & CTF_UNSIGNED) && i < 0)
+	  setnumV(o, (lua_Number)(uint32_t)i);
+	else
+	  setintV(o, i);
+      } else {
+	lj_cconv_ct_ct(cts, ctype_get(cts, CTID_DOUBLE), s,
+		       (uint8_t *)&o->n, sp, 0);
+	/* Numbers are NOT canonicalized here! Beware of uninitialized data. */
+	lua_assert(tvisnum(o));
+      }
+    } else {
+      uint32_t b = s->size == 1 ? (*sp != 0) : (*(int *)sp != 0);
+      setboolV(o, b);
+      setboolV(&cts->g->tmptv2, b);  /* Remember for trace recorder. */
+    }
+    return 0;
+  } else if (ctype_isrefarray(sinfo) || ctype_isstruct(sinfo)) {
+    /* Create reference. */
+    setcdataV(cts->L, o, lj_cdata_newref(cts, sp, sid));
+    return 1;  /* Need GC step. */
+  } else {
+    GCcdata *cd;
+    CTSize sz;
+  copyval:  /* Copy value. */
+    sz = s->size;
+    lua_assert(sz != CTSIZE_INVALID);
+    /* Attributes are stripped, qualifiers are kept (but mostly ignored). */
+    cd = lj_cdata_new(cts, ctype_typeid(cts, s), sz);
+    setcdataV(cts->L, o, cd);
+    memcpy(cdataptr(cd), sp, sz);
+    return 1;  /* Need GC step. */
+  }
+}
+
+/* Convert bitfield to TValue. */
+int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp)
+{
+  CTInfo info = s->info;
+  CTSize pos, bsz;
+  uint32_t val;
+  lua_assert(ctype_isbitfield(info));
+  /* NYI: packed bitfields may cause misaligned reads. */
+  switch (ctype_bitcsz(info)) {
+  case 4: val = *(uint32_t *)sp; break;
+  case 2: val = *(uint16_t *)sp; break;
+  case 1: val = *(uint8_t *)sp; break;
+  default: lua_assert(0); val = 0; break;
+  }
+  /* Check if a packed bitfield crosses a container boundary. */
+  pos = ctype_bitpos(info);
+  bsz = ctype_bitbsz(info);
+  lua_assert(pos < 8*ctype_bitcsz(info));
+  lua_assert(bsz > 0 && bsz <= 8*ctype_bitcsz(info));
+  if (pos + bsz > 8*ctype_bitcsz(info))
+    lj_err_caller(cts->L, LJ_ERR_FFI_NYIPACKBIT);
+  if (!(info & CTF_BOOL)) {
+    CTSize shift = 32 - bsz;
+    if (!(info & CTF_UNSIGNED)) {
+      setintV(o, (int32_t)(val << (shift-pos)) >> shift);
+    } else {
+      val = (val << (shift-pos)) >> shift;
+      if (!LJ_DUALNUM || (int32_t)val < 0)
+	setnumV(o, (lua_Number)(uint32_t)val);
+      else
+	setintV(o, (int32_t)val);
+    }
+  } else {
+    lua_assert(bsz == 1);
+    setboolV(o, (val >> pos) & 1);
+  }
+  return 0;  /* No GC step needed. */
+}
+
+/* -- TValue to C type conversion ----------------------------------------- */
+
+/* Convert table to array. */
+static void cconv_array_tab(CTState *cts, CType *d,
+			    uint8_t *dp, GCtab *t, CTInfo flags)
+{
+  int32_t i;
+  CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
+  CTSize size = d->size, esize = dc->size, ofs = 0;
+  for (i = 0; ; i++) {
+    TValue *tv = (TValue *)lj_tab_getint(t, i);
+    if (!tv || tvisnil(tv)) {
+      if (i == 0) continue;  /* Try again for 1-based tables. */
+      break;  /* Stop at first nil. */
+    }
+    if (ofs >= size)
+      cconv_err_initov(cts, d);
+    lj_cconv_ct_tv(cts, dc, dp + ofs, tv, flags);
+    ofs += esize;
+  }
+  if (size != CTSIZE_INVALID) {  /* Only fill up arrays with known size. */
+    if (ofs == esize) {  /* Replicate a single element. */
+      for (; ofs < size; ofs += esize) memcpy(dp + ofs, dp, esize);
+    } else {  /* Otherwise fill the remainder with zero. */
+      memset(dp + ofs, 0, size - ofs);
+    }
+  }
+}
+
+/* Convert table to sub-struct/union. */
+static void cconv_substruct_tab(CTState *cts, CType *d, uint8_t *dp,
+				GCtab *t, int32_t *ip, CTInfo flags)
+{
+  CTypeID id = d->sib;
+  while (id) {
+    CType *df = ctype_get(cts, id);
+    id = df->sib;
+    if (ctype_isfield(df->info) || ctype_isbitfield(df->info)) {
+      TValue *tv;
+      int32_t i = *ip, iz = i;
+      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+      if (i >= 0) {
+      retry:
+	tv = (TValue *)lj_tab_getint(t, i);
+	if (!tv || tvisnil(tv)) {
+	  if (i == 0) { i = 1; goto retry; }  /* 1-based tables. */
+	  if (iz == 0) { *ip = i = -1; goto tryname; }  /* Init named fields. */
+	  break;  /* Stop at first nil. */
+	}
+	*ip = i + 1;
+      } else {
+      tryname:
+	tv = (TValue *)lj_tab_getstr(t, gco2str(gcref(df->name)));
+	if (!tv || tvisnil(tv)) continue;
+      }
+      if (ctype_isfield(df->info))
+	lj_cconv_ct_tv(cts, ctype_rawchild(cts, df), dp+df->size, tv, flags);
+      else
+	lj_cconv_bf_tv(cts, df, dp+df->size, tv);
+      if ((d->info & CTF_UNION)) break;
+    } else if (ctype_isxattrib(df->info, CTA_SUBTYPE)) {
+      cconv_substruct_tab(cts, ctype_rawchild(cts, df),
+			  dp+df->size, t, ip, flags);
+    }  /* Ignore all other entries in the chain. */
+  }
+}
+
+/* Convert table to struct/union. */
+static void cconv_struct_tab(CTState *cts, CType *d,
+			     uint8_t *dp, GCtab *t, CTInfo flags)
+{
+  int32_t i = 0;
+  memset(dp, 0, d->size);  /* Much simpler to clear the struct first. */
+  cconv_substruct_tab(cts, d, dp, t, &i, flags);
+}
+
+/* Convert TValue to C type. Caveat: expects to get the raw CType! */
+void lj_cconv_ct_tv(CTState *cts, CType *d,
+		    uint8_t *dp, TValue *o, CTInfo flags)
+{
+  CTypeID sid = CTID_P_VOID;
+  CType *s;
+  void *tmpptr;
+  uint8_t tmpbool, *sp = (uint8_t *)&tmpptr;
+  if (LJ_LIKELY(tvisint(o))) {
+    sp = (uint8_t *)&o->i;
+    sid = CTID_INT32;
+    flags |= CCF_FROMTV;
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    sp = (uint8_t *)&o->n;
+    sid = CTID_DOUBLE;
+    flags |= CCF_FROMTV;
+  } else if (tviscdata(o)) {
+    sp = cdataptr(cdataV(o));
+    sid = cdataV(o)->ctypeid;
+    s = ctype_get(cts, sid);
+    if (ctype_isref(s->info)) {  /* Resolve reference for value. */
+      lua_assert(s->size == CTSIZE_PTR);
+      sp = *(void **)sp;
+      sid = ctype_cid(s->info);
+    }
+    s = ctype_raw(cts, sid);
+    if (ctype_isfunc(s->info)) {
+      sid = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|sid), CTSIZE_PTR);
+    } else {
+      if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+      goto doconv;
+    }
+  } else if (tvisstr(o)) {
+    GCstr *str = strV(o);
+    if (ctype_isenum(d->info)) {  /* Match string against enum constant. */
+      CTSize ofs;
+      CType *cct = lj_ctype_getfield(cts, d, str, &ofs);
+      if (!cct || !ctype_isconstval(cct->info))
+	goto err_conv;
+      lua_assert(d->size == 4);
+      sp = (uint8_t *)&cct->size;
+      sid = ctype_cid(cct->info);
+    } else if (ctype_isrefarray(d->info)) {  /* Copy string to array. */
+      CType *dc = ctype_rawchild(cts, d);
+      CTSize sz = str->len+1;
+      if (!ctype_isinteger(dc->info) || dc->size != 1)
+	goto err_conv;
+      if (d->size != 0 && d->size < sz)
+	sz = d->size;
+      memcpy(dp, strdata(str), sz);
+      return;
+    } else {  /* Otherwise pass it as a const char[]. */
+      sp = (uint8_t *)strdata(str);
+      sid = CTID_A_CCHAR;
+      flags |= CCF_FROMTV;
+    }
+  } else if (tvistab(o)) {
+    if (ctype_isarray(d->info)) {
+      cconv_array_tab(cts, d, dp, tabV(o), flags);
+      return;
+    } else if (ctype_isstruct(d->info)) {
+      cconv_struct_tab(cts, d, dp, tabV(o), flags);
+      return;
+    } else {
+      goto err_conv;
+    }
+  } else if (tvisbool(o)) {
+    tmpbool = boolV(o);
+    sp = &tmpbool;
+    sid = CTID_BOOL;
+  } else if (tvisnil(o)) {
+    tmpptr = (void *)0;
+    flags |= CCF_FROMTV;
+  } else if (tvisudata(o)) {
+    GCudata *ud = udataV(o);
+    tmpptr = uddata(ud);
+    if (ud->udtype == UDTYPE_IO_FILE)
+      tmpptr = *(void **)tmpptr;
+  } else if (tvislightud(o)) {
+    tmpptr = lightudV(o);
+  } else if (tvisfunc(o)) {
+    void *p = lj_ccallback_new(cts, d, funcV(o));
+    if (p) {
+      *(void **)dp = p;
+      return;
+    }
+    goto err_conv;
+  } else {
+  err_conv:
+    cconv_err_convtv(cts, d, o, flags);
+  }
+  s = ctype_get(cts, sid);
+doconv:
+  if (ctype_isenum(d->info)) d = ctype_child(cts, d);
+  lj_cconv_ct_ct(cts, d, s, dp, sp, flags);
+}
+
+/* Convert TValue to bitfield. */
+void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o)
+{
+  CTInfo info = d->info;
+  CTSize pos, bsz;
+  uint32_t val, mask;
+  lua_assert(ctype_isbitfield(info));
+  if ((info & CTF_BOOL)) {
+    uint8_t tmpbool;
+    lua_assert(ctype_bitbsz(info) == 1);
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_BOOL), &tmpbool, o, 0);
+    val = tmpbool;
+  } else {
+    CTypeID did = (info & CTF_UNSIGNED) ? CTID_UINT32 : CTID_INT32;
+    lj_cconv_ct_tv(cts, ctype_get(cts, did), (uint8_t *)&val, o, 0);
+  }
+  pos = ctype_bitpos(info);
+  bsz = ctype_bitbsz(info);
+  lua_assert(pos < 8*ctype_bitcsz(info));
+  lua_assert(bsz > 0 && bsz <= 8*ctype_bitcsz(info));
+  /* Check if a packed bitfield crosses a container boundary. */
+  if (pos + bsz > 8*ctype_bitcsz(info))
+    lj_err_caller(cts->L, LJ_ERR_FFI_NYIPACKBIT);
+  mask = ((1u << bsz) - 1u) << pos;
+  val = (val << pos) & mask;
+  /* NYI: packed bitfields may cause misaligned reads/writes. */
+  switch (ctype_bitcsz(info)) {
+  case 4: *(uint32_t *)dp = (*(uint32_t *)dp & ~mask) | (uint32_t)val; break;
+  case 2: *(uint16_t *)dp = (*(uint16_t *)dp & ~mask) | (uint16_t)val; break;
+  case 1: *(uint8_t *)dp = (*(uint8_t *)dp & ~mask) | (uint8_t)val; break;
+  default: lua_assert(0); break;
+  }
+}
+
+/* -- Initialize C type with TValues -------------------------------------- */
+
+/* Initialize an array with TValues. */
+static void cconv_array_init(CTState *cts, CType *d, CTSize sz, uint8_t *dp,
+			     TValue *o, MSize len)
+{
+  CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
+  CTSize ofs, esize = dc->size;
+  MSize i;
+  if (len*esize > sz)
+    cconv_err_initov(cts, d);
+  for (i = 0, ofs = 0; i < len; i++, ofs += esize)
+    lj_cconv_ct_tv(cts, dc, dp + ofs, o + i, 0);
+  if (ofs == esize) {  /* Replicate a single element. */
+    for (; ofs < sz; ofs += esize) memcpy(dp + ofs, dp, esize);
+  } else {  /* Otherwise fill the remainder with zero. */
+    memset(dp + ofs, 0, sz - ofs);
+  }
+}
+
+/* Initialize a sub-struct/union with TValues. */
+static void cconv_substruct_init(CTState *cts, CType *d, uint8_t *dp,
+				 TValue *o, MSize len, MSize *ip)
+{
+  CTypeID id = d->sib;
+  while (id) {
+    CType *df = ctype_get(cts, id);
+    id = df->sib;
+    if (ctype_isfield(df->info) || ctype_isbitfield(df->info)) {
+      MSize i = *ip;
+      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+      if (i >= len) break;
+      *ip = i + 1;
+      if (ctype_isfield(df->info))
+	lj_cconv_ct_tv(cts, ctype_rawchild(cts, df), dp+df->size, o + i, 0);
+      else
+	lj_cconv_bf_tv(cts, df, dp+df->size, o + i);
+      if ((d->info & CTF_UNION)) break;
+    } else if (ctype_isxattrib(df->info, CTA_SUBTYPE)) {
+      cconv_substruct_init(cts, ctype_rawchild(cts, df),
+			   dp+df->size, o, len, ip);
+    }  /* Ignore all other entries in the chain. */
+  }
+}
+
+/* Initialize a struct/union with TValues. */
+static void cconv_struct_init(CTState *cts, CType *d, CTSize sz, uint8_t *dp,
+			      TValue *o, MSize len)
+{
+  MSize i = 0;
+  memset(dp, 0, sz);  /* Much simpler to clear the struct first. */
+  cconv_substruct_init(cts, d, dp, o, len, &i);
+  if (i < len)
+    cconv_err_initov(cts, d);
+}
+
+/* Check whether to use a multi-value initializer.
+** This is true if an aggregate is to be initialized with a value.
+** Valarrays are treated as values here so ct_tv handles (V|C, I|F).
+*/
+int lj_cconv_multi_init(CTState *cts, CType *d, TValue *o)
+{
+  if (!(ctype_isrefarray(d->info) || ctype_isstruct(d->info)))
+    return 0;  /* Destination is not an aggregate. */
+  if (tvistab(o) || (tvisstr(o) && !ctype_isstruct(d->info)))
+    return 0;  /* Initializer is not a value. */
+  if (tviscdata(o) && lj_ctype_rawref(cts, cdataV(o)->ctypeid) == d)
+    return 0;  /* Source and destination are identical aggregates. */
+  return 1;  /* Otherwise the initializer is a value. */
+}
+
+/* Initialize C type with TValues. Caveat: expects to get the raw CType! */
+void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
+		      uint8_t *dp, TValue *o, MSize len)
+{
+  if (len == 0)
+    memset(dp, 0, sz);
+  else if (len == 1 && !lj_cconv_multi_init(cts, d, o))
+    lj_cconv_ct_tv(cts, d, dp, o, 0);
+  else if (ctype_isarray(d->info))  /* Also handles valarray init with len>1. */
+    cconv_array_init(cts, d, sz, dp, o, len);
+  else if (ctype_isstruct(d->info))
+    cconv_struct_init(cts, d, sz, dp, o, len);
+  else
+    cconv_err_initov(cts, d);
+}
+
+#endif
diff --git a/lib/luajit/src/lj_cconv.h b/lib/luajit/src/lj_cconv.h
new file mode 100644
index 00000000..17e0f050
--- /dev/null
+++ b/lib/luajit/src/lj_cconv.h
@@ -0,0 +1,70 @@
+/*
+** C type conversions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCONV_H
+#define _LJ_CCONV_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Compressed C type index. ORDER CCX. */
+enum {
+  CCX_B,	/* Bool. */
+  CCX_I,	/* Integer. */
+  CCX_F,	/* Floating-point number. */
+  CCX_C,	/* Complex. */
+  CCX_V,	/* Vector. */
+  CCX_P,	/* Pointer. */
+  CCX_A,	/* Refarray. */
+  CCX_S		/* Struct/union. */
+};
+
+/* Convert C type info to compressed C type index. ORDER CT. ORDER CCX. */
+static LJ_AINLINE uint32_t cconv_idx(CTInfo info)
+{
+  uint32_t idx = ((info >> 26) & 15u);  /* Dispatch bits. */
+  lua_assert(ctype_type(info) <= CT_MAYCONVERT);
+#if LJ_64
+  idx = ((uint32_t)(U64x(f436fff5,fff7f021) >> 4*idx) & 15u);
+#else
+  idx = (((idx < 8 ? 0xfff7f021u : 0xf436fff5) >> 4*(idx & 7u)) & 15u);
+#endif
+  lua_assert(idx < 8);
+  return idx;
+}
+
+#define cconv_idx2(dinfo, sinfo) \
+  ((cconv_idx((dinfo)) << 3) + cconv_idx((sinfo)))
+
+#define CCX(dst, src)		((CCX_##dst << 3) + CCX_##src)
+
+/* Conversion flags. */
+#define CCF_CAST	0x00000001u
+#define CCF_FROMTV	0x00000002u
+#define CCF_SAME	0x00000004u
+#define CCF_IGNQUAL	0x00000008u
+
+#define CCF_ARG_SHIFT	8
+#define CCF_ARG(n)	((n) << CCF_ARG_SHIFT)
+#define CCF_GETARG(f)	((f) >> CCF_ARG_SHIFT)
+
+LJ_FUNC int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags);
+LJ_FUNC void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
+			    uint8_t *dp, uint8_t *sp, CTInfo flags);
+LJ_FUNC int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
+			   TValue *o, uint8_t *sp);
+LJ_FUNC int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp);
+LJ_FUNC void lj_cconv_ct_tv(CTState *cts, CType *d,
+			    uint8_t *dp, TValue *o, CTInfo flags);
+LJ_FUNC void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o);
+LJ_FUNC int lj_cconv_multi_init(CTState *cts, CType *d, TValue *o);
+LJ_FUNC void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
+			      uint8_t *dp, TValue *o, MSize len);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_cdata.c b/lib/luajit/src/lj_cdata.c
new file mode 100644
index 00000000..590ddf10
--- /dev/null
+++ b/lib/luajit/src/lj_cdata.c
@@ -0,0 +1,285 @@
+/*
+** C data management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+
+/* -- C data allocation --------------------------------------------------- */
+
+/* Allocate a new C data object holding a reference to another object. */
+GCcdata *lj_cdata_newref(CTState *cts, const void *p, CTypeID id)
+{
+  CTypeID refid = lj_ctype_intern(cts, CTINFO_REF(id), CTSIZE_PTR);
+  GCcdata *cd = lj_cdata_new(cts, refid, CTSIZE_PTR);
+  *(const void **)cdataptr(cd) = p;
+  return cd;
+}
+
+/* Allocate variable-sized or specially aligned C data object. */
+GCcdata *lj_cdata_newv(CTState *cts, CTypeID id, CTSize sz, CTSize align)
+{
+  global_State *g;
+  MSize extra = sizeof(GCcdataVar) + sizeof(GCcdata) +
+		(align > CT_MEMALIGN ? (1u<<align) - (1u<<CT_MEMALIGN) : 0);
+  char *p = lj_mem_newt(cts->L, extra + sz, char);
+  uintptr_t adata = (uintptr_t)p + sizeof(GCcdataVar) + sizeof(GCcdata);
+  uintptr_t almask = (1u << align) - 1u;
+  GCcdata *cd = (GCcdata *)(((adata + almask) & ~almask) - sizeof(GCcdata));
+  lua_assert((char *)cd - p < 65536);
+  cdatav(cd)->offset = (uint16_t)((char *)cd - p);
+  cdatav(cd)->extra = extra;
+  cdatav(cd)->len = sz;
+  g = cts->g;
+  setgcrefr(cd->nextgc, g->gc.root);
+  setgcref(g->gc.root, obj2gco(cd));
+  newwhite(g, obj2gco(cd));
+  cd->marked |= 0x80;
+  cd->gct = ~LJ_TCDATA;
+  cd->ctypeid = id;
+  return cd;
+}
+
+/* Free a C data object. */
+void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd)
+{
+  if (LJ_UNLIKELY(cd->marked & LJ_GC_CDATA_FIN)) {
+    GCobj *root;
+    makewhite(g, obj2gco(cd));
+    markfinalized(obj2gco(cd));
+    if ((root = gcref(g->gc.mmudata)) != NULL) {
+      setgcrefr(cd->nextgc, root->gch.nextgc);
+      setgcref(root->gch.nextgc, obj2gco(cd));
+      setgcref(g->gc.mmudata, obj2gco(cd));
+    } else {
+      setgcref(cd->nextgc, obj2gco(cd));
+      setgcref(g->gc.mmudata, obj2gco(cd));
+    }
+  } else if (LJ_LIKELY(!cdataisv(cd))) {
+    CType *ct = ctype_raw(ctype_ctsG(g), cd->ctypeid);
+    CTSize sz = ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR;
+    lua_assert(ctype_hassize(ct->info) || ctype_isfunc(ct->info) ||
+	       ctype_isextern(ct->info));
+    lj_mem_free(g, cd, sizeof(GCcdata) + sz);
+  } else {
+    lj_mem_free(g, memcdatav(cd), sizecdatav(cd));
+  }
+}
+
+TValue * LJ_FASTCALL lj_cdata_setfin(lua_State *L, GCcdata *cd)
+{
+  global_State *g = G(L);
+  GCtab *t = ctype_ctsG(g)->finalizer;
+  if (gcref(t->metatable)) {
+    /* Add cdata to finalizer table, if still enabled. */
+    TValue *tv, tmp;
+    setcdataV(L, &tmp, cd);
+    lj_gc_anybarriert(L, t);
+    tv = lj_tab_set(L, t, &tmp);
+    cd->marked |= LJ_GC_CDATA_FIN;
+    return tv;
+  } else {
+    /* Otherwise return dummy TValue. */
+    return &g->tmptv;
+  }
+}
+
+/* -- C data indexing ----------------------------------------------------- */
+
+/* Index C data by a TValue. Return CType and pointer. */
+CType *lj_cdata_index(CTState *cts, GCcdata *cd, cTValue *key, uint8_t **pp,
+		      CTInfo *qual)
+{
+  uint8_t *p = (uint8_t *)cdataptr(cd);
+  CType *ct = ctype_get(cts, cd->ctypeid);
+  ptrdiff_t idx;
+
+  /* Resolve reference for cdata object. */
+  if (ctype_isref(ct->info)) {
+    lua_assert(ct->size == CTSIZE_PTR);
+    p = *(uint8_t **)p;
+    ct = ctype_child(cts, ct);
+  }
+
+collect_attrib:
+  /* Skip attributes and collect qualifiers. */
+  while (ctype_isattrib(ct->info)) {
+    if (ctype_attrib(ct->info) == CTA_QUAL) *qual |= ct->size;
+    ct = ctype_child(cts, ct);
+  }
+  lua_assert(!ctype_isref(ct->info));  /* Interning rejects refs to refs. */
+
+  if (tvisint(key)) {
+    idx = (ptrdiff_t)intV(key);
+    goto integer_key;
+  } else if (tvisnum(key)) {  /* Numeric key. */
+    idx = LJ_64 ? (ptrdiff_t)numV(key) : (ptrdiff_t)lj_num2int(numV(key));
+  integer_key:
+    if (ctype_ispointer(ct->info)) {
+      CTSize sz = lj_ctype_size(cts, ctype_cid(ct->info));  /* Element size. */
+      if (sz != CTSIZE_INVALID) {
+	if (ctype_isptr(ct->info)) {
+	  p = (uint8_t *)cdata_getptr(p, ct->size);
+	} else if ((ct->info & (CTF_VECTOR|CTF_COMPLEX))) {
+	  if ((ct->info & CTF_COMPLEX)) idx &= 1;
+	  *qual |= CTF_CONST;  /* Valarray elements are constant. */
+	}
+	*pp = p + idx*(int32_t)sz;
+	return ct;
+      }
+    }
+  } else if (tviscdata(key)) {  /* Integer cdata key. */
+    GCcdata *cdk = cdataV(key);
+    CType *ctk = ctype_raw(cts, cdk->ctypeid);
+    if (ctype_isenum(ctk->info)) ctk = ctype_child(cts, ctk);
+    if (ctype_isinteger(ctk->info)) {
+      lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ctk,
+		     (uint8_t *)&idx, cdataptr(cdk), 0);
+      goto integer_key;
+    }
+  } else if (tvisstr(key)) {  /* String key. */
+    GCstr *name = strV(key);
+    if (ctype_isstruct(ct->info)) {
+      CTSize ofs;
+      CType *fct = lj_ctype_getfieldq(cts, ct, name, &ofs, qual);
+      if (fct) {
+	*pp = p + ofs;
+	return fct;
+      }
+    } else if (ctype_iscomplex(ct->info)) {
+      if (name->len == 2) {
+	*qual |= CTF_CONST;  /* Complex fields are constant. */
+	if (strdata(name)[0] == 'r' && strdata(name)[1] == 'e') {
+	  *pp = p;
+	  return ct;
+	} else if (strdata(name)[0] == 'i' && strdata(name)[1] == 'm') {
+	  *pp = p + (ct->size >> 1);
+	  return ct;
+	}
+      }
+    } else if (cd->ctypeid == CTID_CTYPEID) {
+      /* Allow indexing a (pointer to) struct constructor to get constants. */
+      CType *sct = ctype_raw(cts, *(CTypeID *)p);
+      if (ctype_isptr(sct->info))
+	sct = ctype_rawchild(cts, sct);
+      if (ctype_isstruct(sct->info)) {
+	CTSize ofs;
+	CType *fct = lj_ctype_getfield(cts, sct, name, &ofs);
+	if (fct && ctype_isconstval(fct->info))
+	  return fct;
+      }
+      ct = sct;  /* Allow resolving metamethods for constructors, too. */
+    }
+  }
+  if (ctype_isptr(ct->info)) {  /* Automatically perform '->'. */
+    if (ctype_isstruct(ctype_rawchild(cts, ct)->info)) {
+      p = (uint8_t *)cdata_getptr(p, ct->size);
+      ct = ctype_child(cts, ct);
+      goto collect_attrib;
+    }
+  }
+  *qual |= 1;  /* Lookup failed. */
+  return ct;  /* But return the resolved raw type. */
+}
+
+/* -- C data getters ------------------------------------------------------ */
+
+/* Get constant value and convert to TValue. */
+static void cdata_getconst(CTState *cts, TValue *o, CType *ct)
+{
+  CType *ctt = ctype_child(cts, ct);
+  lua_assert(ctype_isinteger(ctt->info) && ctt->size <= 4);
+  /* Constants are already zero-extended/sign-extended to 32 bits. */
+  if ((ctt->info & CTF_UNSIGNED) && (int32_t)ct->size < 0)
+    setnumV(o, (lua_Number)(uint32_t)ct->size);
+  else
+    setintV(o, (int32_t)ct->size);
+}
+
+/* Get C data value and convert to TValue. */
+int lj_cdata_get(CTState *cts, CType *s, TValue *o, uint8_t *sp)
+{
+  CTypeID sid;
+
+  if (ctype_isconstval(s->info)) {
+    cdata_getconst(cts, o, s);
+    return 0;  /* No GC step needed. */
+  } else if (ctype_isbitfield(s->info)) {
+    return lj_cconv_tv_bf(cts, s, o, sp);
+  }
+
+  /* Get child type of pointer/array/field. */
+  lua_assert(ctype_ispointer(s->info) || ctype_isfield(s->info));
+  sid = ctype_cid(s->info);
+  s = ctype_get(cts, sid);
+
+  /* Resolve reference for field. */
+  if (ctype_isref(s->info)) {
+    lua_assert(s->size == CTSIZE_PTR);
+    sp = *(uint8_t **)sp;
+    sid = ctype_cid(s->info);
+    s = ctype_get(cts, sid);
+  }
+
+  /* Skip attributes. */
+  while (ctype_isattrib(s->info))
+    s = ctype_child(cts, s);
+
+  return lj_cconv_tv_ct(cts, s, sid, o, sp);
+}
+
+/* -- C data setters ------------------------------------------------------ */
+
+/* Convert TValue and set C data value. */
+void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o, CTInfo qual)
+{
+  if (ctype_isconstval(d->info)) {
+    goto err_const;
+  } else if (ctype_isbitfield(d->info)) {
+    if (((d->info|qual) & CTF_CONST)) goto err_const;
+    lj_cconv_bf_tv(cts, d, dp, o);
+    return;
+  }
+
+  /* Get child type of pointer/array/field. */
+  lua_assert(ctype_ispointer(d->info) || ctype_isfield(d->info));
+  d = ctype_child(cts, d);
+
+  /* Resolve reference for field. */
+  if (ctype_isref(d->info)) {
+    lua_assert(d->size == CTSIZE_PTR);
+    dp = *(uint8_t **)dp;
+    d = ctype_child(cts, d);
+  }
+
+  /* Skip attributes and collect qualifiers. */
+  for (;;) {
+    if (ctype_isattrib(d->info)) {
+      if (ctype_attrib(d->info) == CTA_QUAL) qual |= d->size;
+    } else {
+      break;
+    }
+    d = ctype_child(cts, d);
+  }
+
+  lua_assert(ctype_hassize(d->info) && !ctype_isvoid(d->info));
+
+  if (((d->info|qual) & CTF_CONST)) {
+  err_const:
+    lj_err_caller(cts->L, LJ_ERR_FFI_WRCONST);
+  }
+
+  lj_cconv_ct_tv(cts, d, dp, o, 0);
+}
+
+#endif
diff --git a/lib/luajit/src/lj_cdata.h b/lib/luajit/src/lj_cdata.h
new file mode 100644
index 00000000..6c8e7a1a
--- /dev/null
+++ b/lib/luajit/src/lj_cdata.h
@@ -0,0 +1,75 @@
+/*
+** C data management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CDATA_H
+#define _LJ_CDATA_H
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Get C data pointer. */
+static LJ_AINLINE void *cdata_getptr(void *p, CTSize sz)
+{
+  if (LJ_64 && sz == 4) {  /* Support 32 bit pointers on 64 bit targets. */
+    return ((void *)(uintptr_t)*(uint32_t *)p);
+  } else {
+    lua_assert(sz == CTSIZE_PTR);
+    return *(void **)p;
+  }
+}
+
+/* Set C data pointer. */
+static LJ_AINLINE void cdata_setptr(void *p, CTSize sz, const void *v)
+{
+  if (LJ_64 && sz == 4) {  /* Support 32 bit pointers on 64 bit targets. */
+    *(uint32_t *)p = (uint32_t)(uintptr_t)v;
+  } else {
+    lua_assert(sz == CTSIZE_PTR);
+    *(void **)p = (void *)v;
+  }
+}
+
+/* Allocate fixed-size C data object. */
+static LJ_AINLINE GCcdata *lj_cdata_new(CTState *cts, CTypeID id, CTSize sz)
+{
+  GCcdata *cd;
+#ifdef LUA_USE_ASSERT
+  CType *ct = ctype_raw(cts, id);
+  lua_assert((ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR) == sz);
+#endif
+  cd = (GCcdata *)lj_mem_newgco(cts->L, sizeof(GCcdata) + sz);
+  cd->gct = ~LJ_TCDATA;
+  cd->ctypeid = ctype_check(cts, id);
+  return cd;
+}
+
+/* Variant which works without a valid CTState. */
+static LJ_AINLINE GCcdata *lj_cdata_new_(lua_State *L, CTypeID id, CTSize sz)
+{
+  GCcdata *cd = (GCcdata *)lj_mem_newgco(L, sizeof(GCcdata) + sz);
+  cd->gct = ~LJ_TCDATA;
+  cd->ctypeid = id;
+  return cd;
+}
+
+LJ_FUNC GCcdata *lj_cdata_newref(CTState *cts, const void *pp, CTypeID id);
+LJ_FUNC GCcdata *lj_cdata_newv(CTState *cts, CTypeID id, CTSize sz,
+			       CTSize align);
+
+LJ_FUNC void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd);
+LJ_FUNCA TValue * LJ_FASTCALL lj_cdata_setfin(lua_State *L, GCcdata *cd);
+
+LJ_FUNC CType *lj_cdata_index(CTState *cts, GCcdata *cd, cTValue *key,
+			      uint8_t **pp, CTInfo *qual);
+LJ_FUNC int lj_cdata_get(CTState *cts, CType *s, TValue *o, uint8_t *sp);
+LJ_FUNC void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o,
+			  CTInfo qual);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_char.c b/lib/luajit/src/lj_char.c
new file mode 100644
index 00000000..11f23efe
--- /dev/null
+++ b/lib/luajit/src/lj_char.c
@@ -0,0 +1,43 @@
+/*
+** Character types.
+** Donated to the public domain.
+**
+** This is intended to replace the problematic libc single-byte NLS functions.
+** These just don't make sense anymore with UTF-8 locales becoming the norm
+** on POSIX systems. It never worked too well on Windows systems since hardly
+** anyone bothered to call setlocale().
+**
+** This table is hardcoded for ASCII. Identifiers include the characters
+** 128-255, too. This allows for the use of all non-ASCII chars as identifiers
+** in the lexer. This is a broad definition, but works well in practice
+** for both UTF-8 locales and most single-byte locales (such as ISO-8859-*).
+**
+** If you really need proper character types for UTF-8 strings, please use
+** an add-on library such as slnunicode: http://luaforge.net/projects/sln/
+*/
+
+#define lj_char_c
+#define LUA_CORE
+
+#include "lj_char.h"
+
+LJ_DATADEF const uint8_t lj_char_bits[257] = {
+    0,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  3,  3,  3,  3,  3,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    2,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,
+  152,152,152,152,152,152,152,152,152,152,  4,  4,  4,  4,  4,  4,
+    4,176,176,176,176,176,176,160,160,160,160,160,160,160,160,160,
+  160,160,160,160,160,160,160,160,160,160,160,  4,  4,  4,  4,132,
+    4,208,208,208,208,208,208,192,192,192,192,192,192,192,192,192,
+  192,192,192,192,192,192,192,192,192,192,192,  4,  4,  4,  4,  1,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
+};
+
diff --git a/lib/luajit/src/lj_char.h b/lib/luajit/src/lj_char.h
new file mode 100644
index 00000000..c3c86d34
--- /dev/null
+++ b/lib/luajit/src/lj_char.h
@@ -0,0 +1,42 @@
+/*
+** Character types.
+** Donated to the public domain.
+*/
+
+#ifndef _LJ_CHAR_H
+#define _LJ_CHAR_H
+
+#include "lj_def.h"
+
+#define LJ_CHAR_CNTRL	0x01
+#define LJ_CHAR_SPACE	0x02
+#define LJ_CHAR_PUNCT	0x04
+#define LJ_CHAR_DIGIT	0x08
+#define LJ_CHAR_XDIGIT	0x10
+#define LJ_CHAR_UPPER	0x20
+#define LJ_CHAR_LOWER	0x40
+#define LJ_CHAR_IDENT	0x80
+#define LJ_CHAR_ALPHA	(LJ_CHAR_LOWER|LJ_CHAR_UPPER)
+#define LJ_CHAR_ALNUM	(LJ_CHAR_ALPHA|LJ_CHAR_DIGIT)
+#define LJ_CHAR_GRAPH	(LJ_CHAR_ALNUM|LJ_CHAR_PUNCT)
+
+/* Only pass -1 or 0..255 to these macros. Never pass a signed char! */
+#define lj_char_isa(c, t)	((lj_char_bits+1)[(c)] & t)
+#define lj_char_iscntrl(c)	lj_char_isa((c), LJ_CHAR_CNTRL)
+#define lj_char_isspace(c)	lj_char_isa((c), LJ_CHAR_SPACE)
+#define lj_char_ispunct(c)	lj_char_isa((c), LJ_CHAR_PUNCT)
+#define lj_char_isdigit(c)	lj_char_isa((c), LJ_CHAR_DIGIT)
+#define lj_char_isxdigit(c)	lj_char_isa((c), LJ_CHAR_XDIGIT)
+#define lj_char_isupper(c)	lj_char_isa((c), LJ_CHAR_UPPER)
+#define lj_char_islower(c)	lj_char_isa((c), LJ_CHAR_LOWER)
+#define lj_char_isident(c)	lj_char_isa((c), LJ_CHAR_IDENT)
+#define lj_char_isalpha(c)	lj_char_isa((c), LJ_CHAR_ALPHA)
+#define lj_char_isalnum(c)	lj_char_isa((c), LJ_CHAR_ALNUM)
+#define lj_char_isgraph(c)	lj_char_isa((c), LJ_CHAR_GRAPH)
+
+#define lj_char_toupper(c)	((c) - (lj_char_islower(c) >> 1))
+#define lj_char_tolower(c)	((c) + lj_char_isupper(c))
+
+LJ_DATA const uint8_t lj_char_bits[257];
+
+#endif
diff --git a/lib/luajit/src/lj_clib.c b/lib/luajit/src/lj_clib.c
new file mode 100644
index 00000000..ccb99e55
--- /dev/null
+++ b/lib/luajit/src/lj_clib.c
@@ -0,0 +1,409 @@
+/*
+** FFI C library loader.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_str.h"
+#include "lj_udata.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+#include "lj_clib.h"
+
+/* -- OS-specific functions ----------------------------------------------- */
+
+#if LJ_TARGET_DLOPEN
+
+#include <dlfcn.h>
+#include <stdio.h>
+
+#if defined(RTLD_DEFAULT)
+#define CLIB_DEFHANDLE	RTLD_DEFAULT
+#elif LJ_TARGET_OSX || LJ_TARGET_BSD
+#define CLIB_DEFHANDLE	((void *)(intptr_t)-2)
+#else
+#define CLIB_DEFHANDLE	NULL
+#endif
+
+LJ_NORET LJ_NOINLINE static void clib_error_(lua_State *L)
+{
+  lj_err_callermsg(L, dlerror());
+}
+
+#define clib_error(L, fmt, name)	clib_error_(L)
+
+#if defined(__CYGWIN__)
+#define CLIB_SOPREFIX	"cyg"
+#else
+#define CLIB_SOPREFIX	"lib"
+#endif
+
+#if LJ_TARGET_OSX
+#define CLIB_SOEXT	"%s.dylib"
+#elif defined(__CYGWIN__)
+#define CLIB_SOEXT	"%s.dll"
+#else
+#define CLIB_SOEXT	"%s.so"
+#endif
+
+static const char *clib_extname(lua_State *L, const char *name)
+{
+  if (!strchr(name, '/')
+#ifdef __CYGWIN__
+      && !strchr(name, '\\')
+#endif
+     ) {
+    if (!strchr(name, '.')) {
+      name = lj_str_pushf(L, CLIB_SOEXT, name);
+      L->top--;
+#ifdef __CYGWIN__
+    } else {
+      return name;
+#endif
+    }
+    if (!(name[0] == CLIB_SOPREFIX[0] && name[1] == CLIB_SOPREFIX[1] &&
+	  name[2] == CLIB_SOPREFIX[2])) {
+      name = lj_str_pushf(L, CLIB_SOPREFIX "%s", name);
+      L->top--;
+    }
+  }
+  return name;
+}
+
+/* Check for a recognized ld script line. */
+static const char *clib_check_lds(lua_State *L, const char *buf)
+{
+  char *p, *e;
+  if ((!strncmp(buf, "GROUP", 5) || !strncmp(buf, "INPUT", 5)) &&
+      (p = strchr(buf, '('))) {
+    while (*++p == ' ') ;
+    for (e = p; *e && *e != ' ' && *e != ')'; e++) ;
+    return strdata(lj_str_new(L, p, e-p));
+  }
+  return NULL;
+}
+
+/* Quick and dirty solution to resolve shared library name from ld script. */
+static const char *clib_resolve_lds(lua_State *L, const char *name)
+{
+  FILE *fp = fopen(name, "r");
+  const char *p = NULL;
+  if (fp) {
+    char buf[256];
+    if (fgets(buf, sizeof(buf), fp)) {
+      if (!strncmp(buf, "/* GNU ld script", 16)) {  /* ld script magic? */
+	while (fgets(buf, sizeof(buf), fp)) {  /* Check all lines. */
+	  p = clib_check_lds(L, buf);
+	  if (p) break;
+	}
+      } else {  /* Otherwise check only the first line. */
+	p = clib_check_lds(L, buf);
+      }
+    }
+    fclose(fp);
+  }
+  return p;
+}
+
+static void *clib_loadlib(lua_State *L, const char *name, int global)
+{
+  void *h = dlopen(clib_extname(L, name),
+		   RTLD_LAZY | (global?RTLD_GLOBAL:RTLD_LOCAL));
+  if (!h) {
+    const char *e, *err = dlerror();
+    if (*err == '/' && (e = strchr(err, ':')) &&
+	(name = clib_resolve_lds(L, strdata(lj_str_new(L, err, e-err))))) {
+      h = dlopen(name, RTLD_LAZY | (global?RTLD_GLOBAL:RTLD_LOCAL));
+      if (h) return h;
+      err = dlerror();
+    }
+    lj_err_callermsg(L, err);
+  }
+  return h;
+}
+
+static void clib_unloadlib(CLibrary *cl)
+{
+  if (cl->handle && cl->handle != CLIB_DEFHANDLE)
+    dlclose(cl->handle);
+}
+
+static void *clib_getsym(CLibrary *cl, const char *name)
+{
+  void *p = dlsym(cl->handle, name);
+  return p;
+}
+
+#elif LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
+#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS	4
+#define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT	2
+BOOL WINAPI GetModuleHandleExA(DWORD, LPCSTR, HMODULE*);
+#endif
+
+#define CLIB_DEFHANDLE	((void *)-1)
+
+/* Default libraries. */
+enum {
+  CLIB_HANDLE_EXE,
+  CLIB_HANDLE_DLL,
+  CLIB_HANDLE_CRT,
+  CLIB_HANDLE_KERNEL32,
+  CLIB_HANDLE_USER32,
+  CLIB_HANDLE_GDI32,
+  CLIB_HANDLE_MAX
+};
+
+static void *clib_def_handle[CLIB_HANDLE_MAX];
+
+LJ_NORET LJ_NOINLINE static void clib_error(lua_State *L, const char *fmt,
+					    const char *name)
+{
+  DWORD err = GetLastError();
+  char buf[128];
+  if (!FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_FROM_SYSTEM,
+		      NULL, err, 0, buf, sizeof(buf), NULL))
+    buf[0] = '\0';
+  lj_err_callermsg(L, lj_str_pushf(L, fmt, name, buf));
+}
+
+static int clib_needext(const char *s)
+{
+  while (*s) {
+    if (*s == '/' || *s == '\\' || *s == '.') return 0;
+    s++;
+  }
+  return 1;
+}
+
+static const char *clib_extname(lua_State *L, const char *name)
+{
+  if (clib_needext(name)) {
+    name = lj_str_pushf(L, "%s.dll", name);
+    L->top--;
+  }
+  return name;
+}
+
+static void *clib_loadlib(lua_State *L, const char *name, int global)
+{
+  DWORD oldwerr = GetLastError();
+  void *h = (void *)LoadLibraryA(clib_extname(L, name));
+  if (!h) clib_error(L, "cannot load module " LUA_QS ": %s", name);
+  SetLastError(oldwerr);
+  UNUSED(global);
+  return h;
+}
+
+static void clib_unloadlib(CLibrary *cl)
+{
+  if (cl->handle == CLIB_DEFHANDLE) {
+    MSize i;
+    for (i = CLIB_HANDLE_KERNEL32; i < CLIB_HANDLE_MAX; i++) {
+      void *h = clib_def_handle[i];
+      if (h) {
+	clib_def_handle[i] = NULL;
+	FreeLibrary((HINSTANCE)h);
+      }
+    }
+  } else if (cl->handle) {
+    FreeLibrary((HINSTANCE)cl->handle);
+  }
+}
+
+static void *clib_getsym(CLibrary *cl, const char *name)
+{
+  void *p = NULL;
+  if (cl->handle == CLIB_DEFHANDLE) {  /* Search default libraries. */
+    MSize i;
+    for (i = 0; i < CLIB_HANDLE_MAX; i++) {
+      HINSTANCE h = (HINSTANCE)clib_def_handle[i];
+      if (!(void *)h) {  /* Resolve default library handles (once). */
+	switch (i) {
+	case CLIB_HANDLE_EXE: GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, NULL, &h); break;
+	case CLIB_HANDLE_DLL:
+	  GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS|GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+			     (const char *)clib_def_handle, &h);
+	  break;
+	case CLIB_HANDLE_CRT:
+	  GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS|GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+			     (const char *)&_fmode, &h);
+	  break;
+	case CLIB_HANDLE_KERNEL32: h = LoadLibraryA("kernel32.dll"); break;
+	case CLIB_HANDLE_USER32: h = LoadLibraryA("user32.dll"); break;
+	case CLIB_HANDLE_GDI32: h = LoadLibraryA("gdi32.dll"); break;
+	}
+	if (!h) continue;
+	clib_def_handle[i] = (void *)h;
+      }
+      p = (void *)GetProcAddress(h, name);
+      if (p) break;
+    }
+  } else {
+    p = (void *)GetProcAddress((HINSTANCE)cl->handle, name);
+  }
+  return p;
+}
+
+#else
+
+#define CLIB_DEFHANDLE	NULL
+
+LJ_NORET LJ_NOINLINE static void clib_error(lua_State *L, const char *fmt,
+					    const char *name)
+{
+  lj_err_callermsg(L, lj_str_pushf(L, fmt, name, "no support for this OS"));
+}
+
+static void *clib_loadlib(lua_State *L, const char *name, int global)
+{
+  lj_err_callermsg(L, "no support for loading dynamic libraries for this OS");
+  UNUSED(name); UNUSED(global);
+  return NULL;
+}
+
+static void clib_unloadlib(CLibrary *cl)
+{
+  UNUSED(cl);
+}
+
+static void *clib_getsym(CLibrary *cl, const char *name)
+{
+  UNUSED(cl); UNUSED(name);
+  return NULL;
+}
+
+#endif
+
+/* -- C library indexing -------------------------------------------------- */
+
+#if LJ_TARGET_X86 && LJ_ABI_WIN
+/* Compute argument size for fastcall/stdcall functions. */
+static CTSize clib_func_argsize(CTState *cts, CType *ct)
+{
+  CTSize n = 0;
+  while (ct->sib) {
+    CType *d;
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      d = ctype_rawchild(cts, ct);
+      n += ((d->size + 3) & ~3);
+    }
+  }
+  return n;
+}
+#endif
+
+/* Get redirected or mangled external symbol. */
+static const char *clib_extsym(CTState *cts, CType *ct, GCstr *name)
+{
+  if (ct->sib) {
+    CType *ctf = ctype_get(cts, ct->sib);
+    if (ctype_isxattrib(ctf->info, CTA_REDIR))
+      return strdata(gco2str(gcref(ctf->name)));
+  }
+  return strdata(name);
+}
+
+/* Index a C library by name. */
+TValue *lj_clib_index(lua_State *L, CLibrary *cl, GCstr *name)
+{
+  TValue *tv = lj_tab_setstr(L, cl->cache, name);
+  if (LJ_UNLIKELY(tvisnil(tv))) {
+    CTState *cts = ctype_cts(L);
+    CType *ct;
+    CTypeID id = lj_ctype_getname(cts, &ct, name, CLNS_INDEX);
+    if (!id)
+      lj_err_callerv(L, LJ_ERR_FFI_NODECL, strdata(name));
+    if (ctype_isconstval(ct->info)) {
+      CType *ctt = ctype_child(cts, ct);
+      lua_assert(ctype_isinteger(ctt->info) && ctt->size <= 4);
+      if ((ctt->info & CTF_UNSIGNED) && (int32_t)ct->size < 0)
+	setnumV(tv, (lua_Number)(uint32_t)ct->size);
+      else
+	setintV(tv, (int32_t)ct->size);
+    } else {
+      const char *sym = clib_extsym(cts, ct, name);
+#if LJ_TARGET_WINDOWS
+      DWORD oldwerr = GetLastError();
+#endif
+      void *p = clib_getsym(cl, sym);
+      GCcdata *cd;
+      lua_assert(ctype_isfunc(ct->info) || ctype_isextern(ct->info));
+#if LJ_TARGET_X86 && LJ_ABI_WIN
+      /* Retry with decorated name for fastcall/stdcall functions. */
+      if (!p && ctype_isfunc(ct->info)) {
+	CTInfo cconv = ctype_cconv(ct->info);
+	if (cconv == CTCC_FASTCALL || cconv == CTCC_STDCALL) {
+	  CTSize sz = clib_func_argsize(cts, ct);
+	  const char *symd = lj_str_pushf(L,
+			       cconv == CTCC_FASTCALL ? "@%s@%d" : "_%s@%d",
+			       sym, sz);
+	  L->top--;
+	  p = clib_getsym(cl, symd);
+	}
+      }
+#endif
+      if (!p)
+	clib_error(L, "cannot resolve symbol " LUA_QS ": %s", sym);
+#if LJ_TARGET_WINDOWS
+      SetLastError(oldwerr);
+#endif
+      cd = lj_cdata_new(cts, id, CTSIZE_PTR);
+      *(void **)cdataptr(cd) = p;
+      setcdataV(L, tv, cd);
+    }
+  }
+  return tv;
+}
+
+/* -- C library management ------------------------------------------------ */
+
+/* Create a new CLibrary object and push it on the stack. */
+static CLibrary *clib_new(lua_State *L, GCtab *mt)
+{
+  GCtab *t = lj_tab_new(L, 0, 0);
+  GCudata *ud = lj_udata_new(L, sizeof(CLibrary), t);
+  CLibrary *cl = (CLibrary *)uddata(ud);
+  cl->cache = t;
+  ud->udtype = UDTYPE_FFI_CLIB;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcref(ud->metatable, obj2gco(mt));
+  setudataV(L, L->top++, ud);
+  return cl;
+}
+
+/* Load a C library. */
+void lj_clib_load(lua_State *L, GCtab *mt, GCstr *name, int global)
+{
+  void *handle = clib_loadlib(L, strdata(name), global);
+  CLibrary *cl = clib_new(L, mt);
+  cl->handle = handle;
+}
+
+/* Unload a C library. */
+void lj_clib_unload(CLibrary *cl)
+{
+  clib_unloadlib(cl);
+  cl->handle = NULL;
+}
+
+/* Create the default C library object. */
+void lj_clib_default(lua_State *L, GCtab *mt)
+{
+  CLibrary *cl = clib_new(L, mt);
+  cl->handle = CLIB_DEFHANDLE;
+}
+
+#endif
diff --git a/lib/luajit/src/lj_clib.h b/lib/luajit/src/lj_clib.h
new file mode 100644
index 00000000..47373288
--- /dev/null
+++ b/lib/luajit/src/lj_clib.h
@@ -0,0 +1,29 @@
+/*
+** FFI C library loader.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CLIB_H
+#define _LJ_CLIB_H
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+/* Namespace for C library indexing. */
+#define CLNS_INDEX	((1u<<CT_FUNC)|(1u<<CT_EXTERN)|(1u<<CT_CONSTVAL))
+
+/* C library namespace. */
+typedef struct CLibrary {
+  void *handle;		/* Opaque handle for dynamic library loader. */
+  GCtab *cache;		/* Cache for resolved symbols. Anchored in ud->env. */
+} CLibrary;
+
+LJ_FUNC TValue *lj_clib_index(lua_State *L, CLibrary *cl, GCstr *name);
+LJ_FUNC void lj_clib_load(lua_State *L, GCtab *mt, GCstr *name, int global);
+LJ_FUNC void lj_clib_unload(CLibrary *cl);
+LJ_FUNC void lj_clib_default(lua_State *L, GCtab *mt);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_cparse.c b/lib/luajit/src/lj_cparse.c
new file mode 100644
index 00000000..6ffe16a2
--- /dev/null
+++ b/lib/luajit/src/lj_cparse.c
@@ -0,0 +1,1872 @@
+/*
+** C declaration parser.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_ctype.h"
+#include "lj_cparse.h"
+#include "lj_frame.h"
+#include "lj_vm.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+
+/*
+** Important note: this is NOT a validating C parser! This is a minimal
+** C declaration parser, solely for use by the LuaJIT FFI.
+**
+** It ought to return correct results for properly formed C declarations,
+** but it may accept some invalid declarations, too (and return nonsense).
+** Also, it shows rather generic error messages to avoid unnecessary bloat.
+** If in doubt, please check the input against your favorite C compiler.
+*/
+
+/* -- C lexer ------------------------------------------------------------- */
+
+/* C lexer token names. */
+static const char *const ctoknames[] = {
+#define CTOKSTR(name, str)	str,
+CTOKDEF(CTOKSTR)
+#undef CTOKSTR
+  NULL
+};
+
+/* Forward declaration. */
+LJ_NORET static void cp_err(CPState *cp, ErrMsg em);
+
+static const char *cp_tok2str(CPState *cp, CPToken tok)
+{
+  lua_assert(tok < CTOK_FIRSTDECL);
+  if (tok > CTOK_OFS)
+    return ctoknames[tok-CTOK_OFS-1];
+  else if (!lj_char_iscntrl(tok))
+    return lj_str_pushf(cp->L, "%c", tok);
+  else
+    return lj_str_pushf(cp->L, "char(%d)", tok);
+}
+
+/* End-of-line? */
+static LJ_AINLINE int cp_iseol(CPChar c)
+{
+  return (c == '\n' || c == '\r');
+}
+
+/* Peek next raw character. */
+static LJ_AINLINE CPChar cp_rawpeek(CPState *cp)
+{
+  return (CPChar)(uint8_t)(*cp->p);
+}
+
+static LJ_NOINLINE CPChar cp_get_bs(CPState *cp);
+
+/* Get next character. */
+static LJ_AINLINE CPChar cp_get(CPState *cp)
+{
+  cp->c = (CPChar)(uint8_t)(*cp->p++);
+  if (LJ_LIKELY(cp->c != '\\')) return cp->c;
+  return cp_get_bs(cp);
+}
+
+/* Transparently skip backslash-escaped line breaks. */
+static LJ_NOINLINE CPChar cp_get_bs(CPState *cp)
+{
+  CPChar c2, c = cp_rawpeek(cp);
+  if (!cp_iseol(c)) return cp->c;
+  cp->p++;
+  c2 = cp_rawpeek(cp);
+  if (cp_iseol(c2) && c2 != c) cp->p++;
+  cp->linenumber++;
+  return cp_get(cp);
+}
+
+/* Grow save buffer. */
+static LJ_NOINLINE void cp_save_grow(CPState *cp, CPChar c)
+{
+  MSize newsize;
+  if (cp->sb.sz >= CPARSE_MAX_BUF/2)
+    cp_err(cp, LJ_ERR_XELEM);
+  newsize = cp->sb.sz * 2;
+  lj_str_resizebuf(cp->L, &cp->sb, newsize);
+  cp->sb.buf[cp->sb.n++] = (char)c;
+}
+
+/* Save character in buffer. */
+static LJ_AINLINE void cp_save(CPState *cp, CPChar c)
+{
+  if (LJ_UNLIKELY(cp->sb.n + 1 > cp->sb.sz))
+    cp_save_grow(cp, c);
+  else
+    cp->sb.buf[cp->sb.n++] = (char)c;
+}
+
+/* Skip line break. Handles "\n", "\r", "\r\n" or "\n\r". */
+static void cp_newline(CPState *cp)
+{
+  CPChar c = cp_rawpeek(cp);
+  if (cp_iseol(c) && c != cp->c) cp->p++;
+  cp->linenumber++;
+}
+
+LJ_NORET static void cp_errmsg(CPState *cp, CPToken tok, ErrMsg em, ...)
+{
+  const char *msg, *tokstr;
+  lua_State *L;
+  va_list argp;
+  if (tok == 0) {
+    tokstr = NULL;
+  } else if (tok == CTOK_IDENT || tok == CTOK_INTEGER || tok == CTOK_STRING ||
+	     tok >= CTOK_FIRSTDECL) {
+    if (cp->sb.n == 0) cp_save(cp, '$');
+    cp_save(cp, '\0');
+    tokstr = cp->sb.buf;
+  } else {
+    tokstr = cp_tok2str(cp, tok);
+  }
+  L = cp->L;
+  va_start(argp, em);
+  msg = lj_str_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  if (tokstr)
+    msg = lj_str_pushf(L, err2msg(LJ_ERR_XNEAR), msg, tokstr);
+  if (cp->linenumber > 1)
+    msg = lj_str_pushf(L, "%s at line %d", msg, cp->linenumber);
+  lj_err_callermsg(L, msg);
+}
+
+LJ_NORET LJ_NOINLINE static void cp_err_token(CPState *cp, CPToken tok)
+{
+  cp_errmsg(cp, cp->tok, LJ_ERR_XTOKEN, cp_tok2str(cp, tok));
+}
+
+LJ_NORET LJ_NOINLINE static void cp_err_badidx(CPState *cp, CType *ct)
+{
+  GCstr *s = lj_ctype_repr(cp->cts->L, ctype_typeid(cp->cts, ct), NULL);
+  cp_errmsg(cp, 0, LJ_ERR_FFI_BADIDX, strdata(s));
+}
+
+LJ_NORET LJ_NOINLINE static void cp_err(CPState *cp, ErrMsg em)
+{
+  cp_errmsg(cp, 0, em);
+}
+
+/* -- Main lexical scanner ------------------------------------------------ */
+
+/* Parse number literal. Only handles int32_t/uint32_t right now. */
+static CPToken cp_number(CPState *cp)
+{
+  StrScanFmt fmt;
+  TValue o;
+  do { cp_save(cp, cp->c); } while (lj_char_isident(cp_get(cp)));
+  cp_save(cp, '\0');
+  fmt = lj_strscan_scan((const uint8_t *)cp->sb.buf, &o, STRSCAN_OPT_C);
+  if (fmt == STRSCAN_INT) cp->val.id = CTID_INT32;
+  else if (fmt == STRSCAN_U32) cp->val.id = CTID_UINT32;
+  else if (!(cp->mode & CPARSE_MODE_SKIP))
+    cp_errmsg(cp, CTOK_INTEGER, LJ_ERR_XNUMBER);
+  cp->val.u32 = (uint32_t)o.i;
+  return CTOK_INTEGER;
+}
+
+/* Parse identifier or keyword. */
+static CPToken cp_ident(CPState *cp)
+{
+  do { cp_save(cp, cp->c); } while (lj_char_isident(cp_get(cp)));
+  cp->str = lj_str_new(cp->L, cp->sb.buf, cp->sb.n);
+  cp->val.id = lj_ctype_getname(cp->cts, &cp->ct, cp->str, cp->tmask);
+  if (ctype_type(cp->ct->info) == CT_KW)
+    return ctype_cid(cp->ct->info);
+  return CTOK_IDENT;
+}
+
+/* Parse parameter. */
+static CPToken cp_param(CPState *cp)
+{
+  CPChar c = cp_get(cp);
+  TValue *o = cp->param;
+  if (lj_char_isident(c) || c == '$')  /* Reserve $xyz for future extensions. */
+    cp_errmsg(cp, c, LJ_ERR_XSYNTAX);
+  if (!o || o >= cp->L->top)
+    cp_err(cp, LJ_ERR_FFI_NUMPARAM);
+  cp->param = o+1;
+  if (tvisstr(o)) {
+    cp->str = strV(o);
+    cp->val.id = 0;
+    cp->ct = &cp->cts->tab[0];
+    return CTOK_IDENT;
+  } else if (tvisnumber(o)) {
+    cp->val.i32 = numberVint(o);
+    cp->val.id = CTID_INT32;
+    return CTOK_INTEGER;
+  } else {
+    GCcdata *cd;
+    if (!tviscdata(o))
+      lj_err_argtype(cp->L, (int)(o-cp->L->base)+1, "type parameter");
+    cd = cdataV(o);
+    if (cd->ctypeid == CTID_CTYPEID)
+      cp->val.id = *(CTypeID *)cdataptr(cd);
+    else
+      cp->val.id = cd->ctypeid;
+    return '$';
+  }
+}
+
+/* Parse string or character constant. */
+static CPToken cp_string(CPState *cp)
+{
+  CPChar delim = cp->c;
+  cp_get(cp);
+  while (cp->c != delim) {
+    CPChar c = cp->c;
+    if (c == '\0') cp_errmsg(cp, CTOK_EOF, LJ_ERR_XSTR);
+    if (c == '\\') {
+      c = cp_get(cp);
+      switch (c) {
+      case '\0': cp_errmsg(cp, CTOK_EOF, LJ_ERR_XSTR); break;
+      case 'a': c = '\a'; break;
+      case 'b': c = '\b'; break;
+      case 'f': c = '\f'; break;
+      case 'n': c = '\n'; break;
+      case 'r': c = '\r'; break;
+      case 't': c = '\t'; break;
+      case 'v': c = '\v'; break;
+      case 'e': c = 27; break;
+      case 'x':
+	c = 0;
+	while (lj_char_isxdigit(cp_get(cp)))
+	  c = (c<<4) + (lj_char_isdigit(cp->c) ? cp->c-'0' : (cp->c&15)+9);
+	cp_save(cp, (c & 0xff));
+	continue;
+      default:
+	if (lj_char_isdigit(c)) {
+	  c -= '0';
+	  if (lj_char_isdigit(cp_get(cp))) {
+	    c = c*8 + (cp->c - '0');
+	    if (lj_char_isdigit(cp_get(cp))) {
+	      c = c*8 + (cp->c - '0');
+	      cp_get(cp);
+	    }
+	  }
+	  cp_save(cp, (c & 0xff));
+	  continue;
+	}
+	break;
+      }
+    }
+    cp_save(cp, c);
+    cp_get(cp);
+  }
+  cp_get(cp);
+  if (delim == '"') {
+    cp->str = lj_str_new(cp->L, cp->sb.buf, cp->sb.n);
+    return CTOK_STRING;
+  } else {
+    if (cp->sb.n != 1) cp_err_token(cp, '\'');
+    cp->val.i32 = (int32_t)(char)cp->sb.buf[0];
+    cp->val.id = CTID_INT32;
+    return CTOK_INTEGER;
+  }
+}
+
+/* Skip C comment. */
+static void cp_comment_c(CPState *cp)
+{
+  do {
+    if (cp_get(cp) == '*') {
+      do {
+	if (cp_get(cp) == '/') { cp_get(cp); return; }
+      } while (cp->c == '*');
+    }
+    if (cp_iseol(cp->c)) cp_newline(cp);
+  } while (cp->c != '\0');
+}
+
+/* Skip C++ comment. */
+static void cp_comment_cpp(CPState *cp)
+{
+  while (!cp_iseol(cp_get(cp)) && cp->c != '\0')
+    ;
+}
+
+/* Lexical scanner for C. Only a minimal subset is implemented. */
+static CPToken cp_next_(CPState *cp)
+{
+  lj_str_resetbuf(&cp->sb);
+  for (;;) {
+    if (lj_char_isident(cp->c))
+      return lj_char_isdigit(cp->c) ? cp_number(cp) : cp_ident(cp);
+    switch (cp->c) {
+    case '\n': case '\r': cp_newline(cp);  /* fallthrough. */
+    case ' ': case '\t': case '\v': case '\f': cp_get(cp); break;
+    case '"': case '\'': return cp_string(cp);
+    case '/':
+      if (cp_get(cp) == '*') cp_comment_c(cp);
+      else if (cp->c == '/') cp_comment_cpp(cp);
+      else return '/';
+      break;
+    case '|':
+      if (cp_get(cp) != '|') return '|'; cp_get(cp); return CTOK_OROR;
+    case '&':
+      if (cp_get(cp) != '&') return '&'; cp_get(cp); return CTOK_ANDAND;
+    case '=':
+      if (cp_get(cp) != '=') return '='; cp_get(cp); return CTOK_EQ;
+    case '!':
+      if (cp_get(cp) != '=') return '!'; cp_get(cp); return CTOK_NE;
+    case '<':
+      if (cp_get(cp) == '=') { cp_get(cp); return CTOK_LE; }
+      else if (cp->c == '<') { cp_get(cp); return CTOK_SHL; }
+      return '<';
+    case '>':
+      if (cp_get(cp) == '=') { cp_get(cp); return CTOK_GE; }
+      else if (cp->c == '>') { cp_get(cp); return CTOK_SHR; }
+      return '>';
+    case '-':
+      if (cp_get(cp) != '>') return '-'; cp_get(cp); return CTOK_DEREF;
+    case '$':
+      return cp_param(cp);
+    case '\0': return CTOK_EOF;
+    default: { CPToken c = cp->c; cp_get(cp); return c; }
+    }
+  }
+}
+
+static LJ_NOINLINE CPToken cp_next(CPState *cp)
+{
+  return (cp->tok = cp_next_(cp));
+}
+
+/* -- C parser ------------------------------------------------------------ */
+
+/* Namespaces for resolving identifiers. */
+#define CPNS_DEFAULT \
+  ((1u<<CT_KW)|(1u<<CT_TYPEDEF)|(1u<<CT_FUNC)|(1u<<CT_EXTERN)|(1u<<CT_CONSTVAL))
+#define CPNS_STRUCT	((1u<<CT_KW)|(1u<<CT_STRUCT)|(1u<<CT_ENUM))
+
+typedef CTypeID CPDeclIdx;	/* Index into declaration stack. */
+typedef uint32_t CPscl;		/* Storage class flags. */
+
+/* Type declaration context. */
+typedef struct CPDecl {
+  CPDeclIdx top;	/* Top of declaration stack. */
+  CPDeclIdx pos;	/* Insertion position in declaration chain. */
+  CPDeclIdx specpos;	/* Saved position for declaration specifier. */
+  uint32_t mode;	/* Declarator mode. */
+  CPState *cp;		/* C parser state. */
+  GCstr *name;		/* Name of declared identifier (if direct). */
+  GCstr *redir;		/* Redirected symbol name. */
+  CTypeID nameid;	/* Existing typedef for declared identifier. */
+  CTInfo attr;		/* Attributes. */
+  CTInfo fattr;		/* Function attributes. */
+  CTInfo specattr;	/* Saved attributes. */
+  CTInfo specfattr;	/* Saved function attributes. */
+  CTSize bits;		/* Field size in bits (if any). */
+  CType stack[CPARSE_MAX_DECLSTACK];  /* Type declaration stack. */
+} CPDecl;
+
+/* Forward declarations. */
+static CPscl cp_decl_spec(CPState *cp, CPDecl *decl, CPscl scl);
+static void cp_declarator(CPState *cp, CPDecl *decl);
+static CTypeID cp_decl_abstract(CPState *cp);
+
+/* Initialize C parser state. Caller must set up: L, p, srcname, mode. */
+static void cp_init(CPState *cp)
+{
+  cp->linenumber = 1;
+  cp->depth = 0;
+  cp->curpack = 0;
+  cp->packstack[0] = 255;
+  lj_str_initbuf(&cp->sb);
+  lj_str_resizebuf(cp->L, &cp->sb, LJ_MIN_SBUF);
+  lua_assert(cp->p != NULL);
+  cp_get(cp);  /* Read-ahead first char. */
+  cp->tok = 0;
+  cp->tmask = CPNS_DEFAULT;
+  cp_next(cp);  /* Read-ahead first token. */
+}
+
+/* Cleanup C parser state. */
+static void cp_cleanup(CPState *cp)
+{
+  global_State *g = G(cp->L);
+  lj_str_freebuf(g, &cp->sb);
+}
+
+/* Check and consume optional token. */
+static int cp_opt(CPState *cp, CPToken tok)
+{
+  if (cp->tok == tok) { cp_next(cp); return 1; }
+  return 0;
+}
+
+/* Check and consume token. */
+static void cp_check(CPState *cp, CPToken tok)
+{
+  if (cp->tok != tok) cp_err_token(cp, tok);
+  cp_next(cp);
+}
+
+/* Check if the next token may start a type declaration. */
+static int cp_istypedecl(CPState *cp)
+{
+  if (cp->tok >= CTOK_FIRSTDECL && cp->tok <= CTOK_LASTDECL) return 1;
+  if (cp->tok == CTOK_IDENT && ctype_istypedef(cp->ct->info)) return 1;
+  if (cp->tok == '$') return 1;
+  return 0;
+}
+
+/* -- Constant expression evaluator --------------------------------------- */
+
+/* Forward declarations. */
+static void cp_expr_unary(CPState *cp, CPValue *k);
+static void cp_expr_sub(CPState *cp, CPValue *k, int pri);
+
+/* Please note that type handling is very weak here. Most ops simply
+** assume integer operands. Accessors are only needed to compute types and
+** return synthetic values. The only purpose of the expression evaluator
+** is to compute the values of constant expressions one would typically
+** find in C header files. And again: this is NOT a validating C parser!
+*/
+
+/* Parse comma separated expression and return last result. */
+static void cp_expr_comma(CPState *cp, CPValue *k)
+{
+  do { cp_expr_sub(cp, k, 0); } while (cp_opt(cp, ','));
+}
+
+/* Parse sizeof/alignof operator. */
+static void cp_expr_sizeof(CPState *cp, CPValue *k, int wantsz)
+{
+  CTSize sz;
+  CTInfo info;
+  if (cp_opt(cp, '(')) {
+    if (cp_istypedecl(cp))
+      k->id = cp_decl_abstract(cp);
+    else
+      cp_expr_comma(cp, k);
+    cp_check(cp, ')');
+  } else {
+    cp_expr_unary(cp, k);
+  }
+  info = lj_ctype_info(cp->cts, k->id, &sz);
+  if (wantsz) {
+    if (sz != CTSIZE_INVALID)
+      k->u32 = sz;
+    else if (k->id != CTID_A_CCHAR)  /* Special case for sizeof("string"). */
+      cp_err(cp, LJ_ERR_FFI_INVSIZE);
+  } else {
+    k->u32 = 1u << ctype_align(info);
+  }
+  k->id = CTID_UINT32;  /* Really size_t. */
+}
+
+/* Parse prefix operators. */
+static void cp_expr_prefix(CPState *cp, CPValue *k)
+{
+  if (cp->tok == CTOK_INTEGER) {
+    *k = cp->val; cp_next(cp);
+  } else if (cp_opt(cp, '+')) {
+    cp_expr_unary(cp, k);  /* Nothing to do (well, integer promotion). */
+  } else if (cp_opt(cp, '-')) {
+    cp_expr_unary(cp, k); k->i32 = -k->i32;
+  } else if (cp_opt(cp, '~')) {
+    cp_expr_unary(cp, k); k->i32 = ~k->i32;
+  } else if (cp_opt(cp, '!')) {
+    cp_expr_unary(cp, k); k->i32 = !k->i32; k->id = CTID_INT32;
+  } else if (cp_opt(cp, '(')) {
+    if (cp_istypedecl(cp)) {  /* Cast operator. */
+      CTypeID id = cp_decl_abstract(cp);
+      cp_check(cp, ')');
+      cp_expr_unary(cp, k);
+      k->id = id;  /* No conversion performed. */
+    } else {  /* Sub-expression. */
+      cp_expr_comma(cp, k);
+      cp_check(cp, ')');
+    }
+  } else if (cp_opt(cp, '*')) {  /* Indirection. */
+    CType *ct;
+    cp_expr_unary(cp, k);
+    ct = lj_ctype_rawref(cp->cts, k->id);
+    if (!ctype_ispointer(ct->info))
+      cp_err_badidx(cp, ct);
+    k->u32 = 0; k->id = ctype_cid(ct->info);
+  } else if (cp_opt(cp, '&')) {  /* Address operator. */
+    cp_expr_unary(cp, k);
+    k->id = lj_ctype_intern(cp->cts, CTINFO(CT_PTR, CTALIGN_PTR+k->id),
+			    CTSIZE_PTR);
+  } else if (cp_opt(cp, CTOK_SIZEOF)) {
+    cp_expr_sizeof(cp, k, 1);
+  } else if (cp_opt(cp, CTOK_ALIGNOF)) {
+    cp_expr_sizeof(cp, k, 0);
+  } else if (cp->tok == CTOK_IDENT) {
+    if (ctype_type(cp->ct->info) == CT_CONSTVAL) {
+      k->u32 = cp->ct->size; k->id = ctype_cid(cp->ct->info);
+    } else if (ctype_type(cp->ct->info) == CT_EXTERN) {
+      k->u32 = cp->val.id; k->id = ctype_cid(cp->ct->info);
+    } else if (ctype_type(cp->ct->info) == CT_FUNC) {
+      k->u32 = cp->val.id; k->id = cp->val.id;
+    } else {
+      goto err_expr;
+    }
+    cp_next(cp);
+  } else if (cp->tok == CTOK_STRING) {
+    CTSize sz = cp->str->len;
+    while (cp_next(cp) == CTOK_STRING)
+      sz += cp->str->len;
+    k->u32 = sz + 1;
+    k->id = CTID_A_CCHAR;
+  } else {
+  err_expr:
+    cp_errmsg(cp, cp->tok, LJ_ERR_XSYMBOL);
+  }
+}
+
+/* Parse postfix operators. */
+static void cp_expr_postfix(CPState *cp, CPValue *k)
+{
+  for (;;) {
+    CType *ct;
+    if (cp_opt(cp, '[')) {  /* Array/pointer index. */
+      CPValue k2;
+      cp_expr_comma(cp, &k2);
+      ct = lj_ctype_rawref(cp->cts, k->id);
+      if (!ctype_ispointer(ct->info)) {
+	ct = lj_ctype_rawref(cp->cts, k2.id);
+	if (!ctype_ispointer(ct->info))
+	  cp_err_badidx(cp, ct);
+      }
+      cp_check(cp, ']');
+      k->u32 = 0;
+    } else if (cp->tok == '.' || cp->tok == CTOK_DEREF) {  /* Struct deref. */
+      CTSize ofs;
+      CType *fct;
+      ct = lj_ctype_rawref(cp->cts, k->id);
+      if (cp->tok == CTOK_DEREF) {
+	if (!ctype_ispointer(ct->info))
+	  cp_err_badidx(cp, ct);
+	ct = lj_ctype_rawref(cp->cts, ctype_cid(ct->info));
+      }
+      cp_next(cp);
+      if (cp->tok != CTOK_IDENT) cp_err_token(cp, CTOK_IDENT);
+      if (!ctype_isstruct(ct->info) || ct->size == CTSIZE_INVALID ||
+	  !(fct = lj_ctype_getfield(cp->cts, ct, cp->str, &ofs)) ||
+	  ctype_isbitfield(fct->info)) {
+	GCstr *s = lj_ctype_repr(cp->cts->L, ctype_typeid(cp->cts, ct), NULL);
+	cp_errmsg(cp, 0, LJ_ERR_FFI_BADMEMBER, strdata(s), strdata(cp->str));
+      }
+      ct = fct;
+      k->u32 = ctype_isconstval(ct->info) ? ct->size : 0;
+      cp_next(cp);
+    } else {
+      return;
+    }
+    k->id = ctype_cid(ct->info);
+  }
+}
+
+/* Parse infix operators. */
+static void cp_expr_infix(CPState *cp, CPValue *k, int pri)
+{
+  CPValue k2;
+  k2.u32 = 0; k2.id = 0;  /* Silence the compiler. */
+  for (;;) {
+    switch (pri) {
+    case 0:
+      if (cp_opt(cp, '?')) {
+	CPValue k3;
+	cp_expr_comma(cp, &k2);  /* Right-associative. */
+	cp_check(cp, ':');
+	cp_expr_sub(cp, &k3, 0);
+	k->u32 = k->u32 ? k2.u32 : k3.u32;
+	k->id = k2.id > k3.id ? k2.id : k3.id;
+	continue;
+      }
+    case 1:
+      if (cp_opt(cp, CTOK_OROR)) {
+	cp_expr_sub(cp, &k2, 2); k->i32 = k->u32 || k2.u32; k->id = CTID_INT32;
+	continue;
+      }
+    case 2:
+      if (cp_opt(cp, CTOK_ANDAND)) {
+	cp_expr_sub(cp, &k2, 3); k->i32 = k->u32 && k2.u32; k->id = CTID_INT32;
+	continue;
+      }
+    case 3:
+      if (cp_opt(cp, '|')) {
+	cp_expr_sub(cp, &k2, 4); k->u32 = k->u32 | k2.u32; goto arith_result;
+      }
+    case 4:
+      if (cp_opt(cp, '^')) {
+	cp_expr_sub(cp, &k2, 5); k->u32 = k->u32 ^ k2.u32; goto arith_result;
+      }
+    case 5:
+      if (cp_opt(cp, '&')) {
+	cp_expr_sub(cp, &k2, 6); k->u32 = k->u32 & k2.u32; goto arith_result;
+      }
+    case 6:
+      if (cp_opt(cp, CTOK_EQ)) {
+	cp_expr_sub(cp, &k2, 7); k->i32 = k->u32 == k2.u32; k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, CTOK_NE)) {
+	cp_expr_sub(cp, &k2, 7); k->i32 = k->u32 != k2.u32; k->id = CTID_INT32;
+	continue;
+      }
+    case 7:
+      if (cp_opt(cp, '<')) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 < k2.i32;
+	else
+	  k->i32 = k->u32 < k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, '>')) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 > k2.i32;
+	else
+	  k->i32 = k->u32 > k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, CTOK_LE)) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 <= k2.i32;
+	else
+	  k->i32 = k->u32 <= k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, CTOK_GE)) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 >= k2.i32;
+	else
+	  k->i32 = k->u32 >= k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      }
+    case 8:
+      if (cp_opt(cp, CTOK_SHL)) {
+	cp_expr_sub(cp, &k2, 9); k->u32 = k->u32 << k2.u32;
+	continue;
+      } else if (cp_opt(cp, CTOK_SHR)) {
+	cp_expr_sub(cp, &k2, 9);
+	if (k->id == CTID_INT32)
+	  k->i32 = k->i32 >> k2.i32;
+	else
+	  k->u32 = k->u32 >> k2.u32;
+	continue;
+      }
+    case 9:
+      if (cp_opt(cp, '+')) {
+	cp_expr_sub(cp, &k2, 10); k->u32 = k->u32 + k2.u32;
+      arith_result:
+	if (k2.id > k->id) k->id = k2.id;  /* Trivial promotion to unsigned. */
+	continue;
+      } else if (cp_opt(cp, '-')) {
+	cp_expr_sub(cp, &k2, 10); k->u32 = k->u32 - k2.u32; goto arith_result;
+      }
+    case 10:
+      if (cp_opt(cp, '*')) {
+	cp_expr_unary(cp, &k2); k->u32 = k->u32 * k2.u32; goto arith_result;
+      } else if (cp_opt(cp, '/')) {
+	cp_expr_unary(cp, &k2);
+	if (k2.id > k->id) k->id = k2.id;  /* Trivial promotion to unsigned. */
+	if (k2.u32 == 0 ||
+	    (k->id == CTID_INT32 && k->u32 == 0x80000000u && k2.i32 == -1))
+	  cp_err(cp, LJ_ERR_BADVAL);
+	if (k->id == CTID_INT32)
+	  k->i32 = k->i32 / k2.i32;
+	else
+	  k->u32 = k->u32 / k2.u32;
+	continue;
+      } else if (cp_opt(cp, '%')) {
+	cp_expr_unary(cp, &k2);
+	if (k2.id > k->id) k->id = k2.id;  /* Trivial promotion to unsigned. */
+	if (k2.u32 == 0 ||
+	    (k->id == CTID_INT32 && k->u32 == 0x80000000u && k2.i32 == -1))
+	  cp_err(cp, LJ_ERR_BADVAL);
+	if (k->id == CTID_INT32)
+	  k->i32 = k->i32 % k2.i32;
+	else
+	  k->u32 = k->u32 % k2.u32;
+	continue;
+      }
+    default:
+      return;
+    }
+  }
+}
+
+/* Parse and evaluate unary expression. */
+static void cp_expr_unary(CPState *cp, CPValue *k)
+{
+  if (++cp->depth > CPARSE_MAX_DECLDEPTH) cp_err(cp, LJ_ERR_XLEVELS);
+  cp_expr_prefix(cp, k);
+  cp_expr_postfix(cp, k);
+  cp->depth--;
+}
+
+/* Parse and evaluate sub-expression. */
+static void cp_expr_sub(CPState *cp, CPValue *k, int pri)
+{
+  cp_expr_unary(cp, k);
+  cp_expr_infix(cp, k, pri);
+}
+
+/* Parse constant integer expression. */
+static void cp_expr_kint(CPState *cp, CPValue *k)
+{
+  CType *ct;
+  cp_expr_sub(cp, k, 0);
+  ct = ctype_raw(cp->cts, k->id);
+  if (!ctype_isinteger(ct->info)) cp_err(cp, LJ_ERR_BADVAL);
+}
+
+/* Parse (non-negative) size expression. */
+static CTSize cp_expr_ksize(CPState *cp)
+{
+  CPValue k;
+  cp_expr_kint(cp, &k);
+  if (k.u32 >= 0x80000000u) cp_err(cp, LJ_ERR_FFI_INVSIZE);
+  return k.u32;
+}
+
+/* -- Type declaration stack management ----------------------------------- */
+
+/* Add declaration element behind the insertion position. */
+static CPDeclIdx cp_add(CPDecl *decl, CTInfo info, CTSize size)
+{
+  CPDeclIdx top = decl->top;
+  if (top >= CPARSE_MAX_DECLSTACK) cp_err(decl->cp, LJ_ERR_XLEVELS);
+  decl->stack[top].info = info;
+  decl->stack[top].size = size;
+  decl->stack[top].sib = 0;
+  setgcrefnull(decl->stack[top].name);
+  decl->stack[top].next = decl->stack[decl->pos].next;
+  decl->stack[decl->pos].next = (CTypeID1)top;
+  decl->top = top+1;
+  return top;
+}
+
+/* Push declaration element before the insertion position. */
+static CPDeclIdx cp_push(CPDecl *decl, CTInfo info, CTSize size)
+{
+  return (decl->pos = cp_add(decl, info, size));
+}
+
+/* Push or merge attributes. */
+static void cp_push_attributes(CPDecl *decl)
+{
+  CType *ct = &decl->stack[decl->pos];
+  if (ctype_isfunc(ct->info)) {  /* Ok to modify in-place. */
+#if LJ_TARGET_X86
+    if ((decl->fattr & CTFP_CCONV))
+      ct->info = (ct->info & (CTMASK_NUM|CTF_VARARG|CTMASK_CID)) +
+		 (decl->fattr & ~CTMASK_CID);
+#endif
+  } else {
+    if ((decl->attr & CTFP_ALIGNED) && !(decl->mode & CPARSE_MODE_FIELD))
+      cp_push(decl, CTINFO(CT_ATTRIB, CTATTRIB(CTA_ALIGN)),
+	      ctype_align(decl->attr));
+  }
+}
+
+/* Push unrolled type to declaration stack and merge qualifiers. */
+static void cp_push_type(CPDecl *decl, CTypeID id)
+{
+  CType *ct = ctype_get(decl->cp->cts, id);
+  CTInfo info = ct->info;
+  CTSize size = ct->size;
+  switch (ctype_type(info)) {
+  case CT_STRUCT: case CT_ENUM:
+    cp_push(decl, CTINFO(CT_TYPEDEF, id), 0);  /* Don't copy unique types. */
+    if ((decl->attr & CTF_QUAL)) {  /* Push unmerged qualifiers. */
+      cp_push(decl, CTINFO(CT_ATTRIB, CTATTRIB(CTA_QUAL)),
+	      (decl->attr & CTF_QUAL));
+      decl->attr &= ~CTF_QUAL;
+    }
+    break;
+  case CT_ATTRIB:
+    if (ctype_isxattrib(info, CTA_QUAL))
+      decl->attr &= ~size;  /* Remove redundant qualifiers. */
+    cp_push_type(decl, ctype_cid(info));  /* Unroll. */
+    cp_push(decl, info & ~CTMASK_CID, size);  /* Copy type. */
+    break;
+  case CT_ARRAY:
+    cp_push_type(decl, ctype_cid(info));  /* Unroll. */
+    cp_push(decl, info & ~CTMASK_CID, size);  /* Copy type. */
+    decl->stack[decl->pos].sib = 1;  /* Mark as already checked and sized. */
+    /* Note: this is not copied to the ct->sib in the C type table. */
+    break;
+  case CT_FUNC:
+    /* Copy type, link parameters (shared). */
+    decl->stack[cp_push(decl, info, size)].sib = ct->sib;
+    break;
+  default:
+    /* Copy type, merge common qualifiers. */
+    cp_push(decl, info|(decl->attr & CTF_QUAL), size);
+    decl->attr &= ~CTF_QUAL;
+    break;
+  }
+}
+
+/* Consume the declaration element chain and intern the C type. */
+static CTypeID cp_decl_intern(CPState *cp, CPDecl *decl)
+{
+  CTypeID id = 0;
+  CPDeclIdx idx = 0;
+  CTSize csize = CTSIZE_INVALID;
+  CTSize cinfo = 0;
+  do {
+    CType *ct = &decl->stack[idx];
+    CTInfo info = ct->info;
+    CTInfo size = ct->size;
+    /* The cid is already part of info for copies of pointers/functions. */
+    idx = ct->next;
+    if (ctype_istypedef(info)) {
+      lua_assert(id == 0);
+      id = ctype_cid(info);
+      /* Always refetch info/size, since struct/enum may have been completed. */
+      cinfo = ctype_get(cp->cts, id)->info;
+      csize = ctype_get(cp->cts, id)->size;
+      lua_assert(ctype_isstruct(cinfo) || ctype_isenum(cinfo));
+    } else if (ctype_isfunc(info)) {  /* Intern function. */
+      CType *fct;
+      CTypeID fid;
+      CTypeID sib;
+      if (id) {
+	CType *refct = ctype_raw(cp->cts, id);
+	/* Reject function or refarray return types. */
+	if (ctype_isfunc(refct->info) || ctype_isrefarray(refct->info))
+	  cp_err(cp, LJ_ERR_FFI_INVTYPE);
+      }
+      /* No intervening attributes allowed, skip forward. */
+      while (idx) {
+	CType *ctn = &decl->stack[idx];
+	if (!ctype_isattrib(ctn->info)) break;
+	idx = ctn->next;  /* Skip attribute. */
+      }
+      sib = ct->sib;  /* Next line may reallocate the C type table. */
+      fid = lj_ctype_new(cp->cts, &fct);
+      csize = CTSIZE_INVALID;
+      fct->info = cinfo = info + id;
+      fct->size = size;
+      fct->sib = sib;
+      id = fid;
+    } else if (ctype_isattrib(info)) {
+      if (ctype_isxattrib(info, CTA_QUAL))
+	cinfo |= size;
+      else if (ctype_isxattrib(info, CTA_ALIGN))
+	CTF_INSERT(cinfo, ALIGN, size);
+      id = lj_ctype_intern(cp->cts, info+id, size);
+      /* Inherit csize/cinfo from original type. */
+    } else {
+      if (ctype_isnum(info)) {  /* Handle mode/vector-size attributes. */
+	lua_assert(id == 0);
+	if (!(info & CTF_BOOL)) {
+	  CTSize msize = ctype_msizeP(decl->attr);
+	  CTSize vsize = ctype_vsizeP(decl->attr);
+	  if (msize && (!(info & CTF_FP) || (msize == 4 || msize == 8))) {
+	    CTSize malign = lj_fls(msize);
+	    if (malign > 4) malign = 4;  /* Limit alignment. */
+	    CTF_INSERT(info, ALIGN, malign);
+	    size = msize;  /* Override size via mode. */
+	  }
+	  if (vsize) {  /* Vector size set? */
+	    CTSize esize = lj_fls(size);
+	    if (vsize >= esize) {
+	      /* Intern the element type first. */
+	      id = lj_ctype_intern(cp->cts, info, size);
+	      /* Then create a vector (array) with vsize alignment. */
+	      size = (1u << vsize);
+	      if (vsize > 4) vsize = 4;  /* Limit alignment. */
+	      if (ctype_align(info) > vsize) vsize = ctype_align(info);
+	      info = CTINFO(CT_ARRAY, (info & CTF_QUAL) + CTF_VECTOR +
+				      CTALIGN(vsize));
+	    }
+	  }
+	}
+      } else if (ctype_isptr(info)) {
+	/* Reject pointer/ref to ref. */
+	if (id && ctype_isref(ctype_raw(cp->cts, id)->info))
+	  cp_err(cp, LJ_ERR_FFI_INVTYPE);
+	if (ctype_isref(info)) {
+	  info &= ~CTF_VOLATILE;  /* Refs are always const, never volatile. */
+	  /* No intervening attributes allowed, skip forward. */
+	  while (idx) {
+	    CType *ctn = &decl->stack[idx];
+	    if (!ctype_isattrib(ctn->info)) break;
+	    idx = ctn->next;  /* Skip attribute. */
+	  }
+	}
+      } else if (ctype_isarray(info)) {  /* Check for valid array size etc. */
+	if (ct->sib == 0) {  /* Only check/size arrays not copied by unroll. */
+	  if (ctype_isref(cinfo))  /* Reject arrays of refs. */
+	    cp_err(cp, LJ_ERR_FFI_INVTYPE);
+	  /* Reject VLS or unknown-sized types. */
+	  if (ctype_isvltype(cinfo) || csize == CTSIZE_INVALID)
+	    cp_err(cp, LJ_ERR_FFI_INVSIZE);
+	  /* a[] and a[?] keep their invalid size. */
+	  if (size != CTSIZE_INVALID) {
+	    uint64_t xsz = (uint64_t)size * csize;
+	    if (xsz >= 0x80000000u) cp_err(cp, LJ_ERR_FFI_INVSIZE);
+	    size = (CTSize)xsz;
+	  }
+	}
+	if ((cinfo & CTF_ALIGN) > (info & CTF_ALIGN))  /* Find max. align. */
+	  info = (info & ~CTF_ALIGN) | (cinfo & CTF_ALIGN);
+	info |= (cinfo & CTF_QUAL);  /* Inherit qual. */
+      } else {
+	lua_assert(ctype_isvoid(info));
+      }
+      csize = size;
+      cinfo = info+id;
+      id = lj_ctype_intern(cp->cts, info+id, size);
+    }
+  } while (idx);
+  return id;
+}
+
+/* -- C declaration parser ------------------------------------------------ */
+
+#define H_(le, be)	LJ_ENDIAN_SELECT(0x##le, 0x##be)
+
+/* Reset declaration state to declaration specifier. */
+static void cp_decl_reset(CPDecl *decl)
+{
+  decl->pos = decl->specpos;
+  decl->top = decl->specpos+1;
+  decl->stack[decl->specpos].next = 0;
+  decl->attr = decl->specattr;
+  decl->fattr = decl->specfattr;
+  decl->name = NULL;
+  decl->redir = NULL;
+}
+
+/* Parse constant initializer. */
+/* NYI: FP constants and strings as initializers. */
+static CTypeID cp_decl_constinit(CPState *cp, CType **ctp, CTypeID ctypeid)
+{
+  CType *ctt = ctype_get(cp->cts, ctypeid);
+  CTInfo info;
+  CTSize size;
+  CPValue k;
+  CTypeID constid;
+  while (ctype_isattrib(ctt->info)) {  /* Skip attributes. */
+    ctypeid = ctype_cid(ctt->info);  /* Update ID, too. */
+    ctt = ctype_get(cp->cts, ctypeid);
+  }
+  info = ctt->info;
+  size = ctt->size;
+  if (!ctype_isinteger(info) || !(info & CTF_CONST) || size > 4)
+    cp_err(cp, LJ_ERR_FFI_INVTYPE);
+  cp_check(cp, '=');
+  cp_expr_sub(cp, &k, 0);
+  constid = lj_ctype_new(cp->cts, ctp);
+  (*ctp)->info = CTINFO(CT_CONSTVAL, CTF_CONST|ctypeid);
+  k.u32 <<= 8*(4-size);
+  if ((info & CTF_UNSIGNED))
+    k.u32 >>= 8*(4-size);
+  else
+    k.u32 = (uint32_t)((int32_t)k.u32 >> 8*(4-size));
+  (*ctp)->size = k.u32;
+  return constid;
+}
+
+/* Parse size in parentheses as part of attribute. */
+static CTSize cp_decl_sizeattr(CPState *cp)
+{
+  CTSize sz;
+  uint32_t oldtmask = cp->tmask;
+  cp->tmask = CPNS_DEFAULT;  /* Required for expression evaluator. */
+  cp_check(cp, '(');
+  sz = cp_expr_ksize(cp);
+  cp->tmask = oldtmask;
+  cp_check(cp, ')');
+  return sz;
+}
+
+/* Parse alignment attribute. */
+static void cp_decl_align(CPState *cp, CPDecl *decl)
+{
+  CTSize al = 4;  /* Unspecified alignment is 16 bytes. */
+  if (cp->tok == '(') {
+    al = cp_decl_sizeattr(cp);
+    al = al ? lj_fls(al) : 0;
+  }
+  CTF_INSERT(decl->attr, ALIGN, al);
+  decl->attr |= CTFP_ALIGNED;
+}
+
+/* Parse GCC asm("name") redirect. */
+static void cp_decl_asm(CPState *cp, CPDecl *decl)
+{
+  UNUSED(decl);
+  cp_next(cp);
+  cp_check(cp, '(');
+  if (cp->tok == CTOK_STRING) {
+    GCstr *str = cp->str;
+    while (cp_next(cp) == CTOK_STRING) {
+      lj_str_pushf(cp->L, "%s%s", strdata(str), strdata(cp->str));
+      cp->L->top--;
+      str = strV(cp->L->top);
+    }
+    decl->redir = str;
+  }
+  cp_check(cp, ')');
+}
+
+/* Parse GCC __attribute__((mode(...))). */
+static void cp_decl_mode(CPState *cp, CPDecl *decl)
+{
+  cp_check(cp, '(');
+  if (cp->tok == CTOK_IDENT) {
+    const char *s = strdata(cp->str);
+    CTSize sz = 0, vlen = 0;
+    if (s[0] == '_' && s[1] == '_') s += 2;
+    if (*s == 'V') {
+      s++;
+      vlen = *s++ - '0';
+      if (*s >= '0' && *s <= '9')
+	vlen = vlen*10 + (*s++ - '0');
+    }
+    switch (*s++) {
+    case 'Q': sz = 1; break;
+    case 'H': sz = 2; break;
+    case 'S': sz = 4; break;
+    case 'D': sz = 8; break;
+    case 'T': sz = 16; break;
+    case 'O': sz = 32; break;
+    default: goto bad_size;
+    }
+    if (*s == 'I' || *s == 'F') {
+      CTF_INSERT(decl->attr, MSIZEP, sz);
+      if (vlen) CTF_INSERT(decl->attr, VSIZEP, lj_fls(vlen*sz));
+    }
+  bad_size:
+    cp_next(cp);
+  }
+  cp_check(cp, ')');
+}
+
+/* Parse GCC __attribute__((...)). */
+static void cp_decl_gccattribute(CPState *cp, CPDecl *decl)
+{
+  cp_next(cp);
+  cp_check(cp, '(');
+  cp_check(cp, '(');
+  while (cp->tok != ')') {
+    if (cp->tok == CTOK_IDENT) {
+      GCstr *attrstr = cp->str;
+      cp_next(cp);
+      switch (attrstr->hash) {
+      case H_(64a9208e,8ce14319): case H_(8e6331b2,95a282af):  /* aligned */
+	cp_decl_align(cp, decl);
+	break;
+      case H_(42eb47de,f0ede26c): case H_(29f48a09,cf383e0c):  /* packed */
+	decl->attr |= CTFP_PACKED;
+	break;
+      case H_(0a84eef6,8dfab04c): case H_(995cf92c,d5696591):  /* mode */
+	cp_decl_mode(cp, decl);
+	break;
+      case H_(0ab31997,2d5213fa): case H_(bf875611,200e9990):  /* vector_size */
+	{
+	  CTSize vsize = cp_decl_sizeattr(cp);
+	  if (vsize) CTF_INSERT(decl->attr, VSIZEP, lj_fls(vsize));
+	}
+	break;
+#if LJ_TARGET_X86
+      case H_(5ad22db8,c689b848): case H_(439150fa,65ea78cb):  /* regparm */
+	CTF_INSERT(decl->fattr, REGPARM, cp_decl_sizeattr(cp));
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case H_(18fc0b98,7ff4c074): case H_(4e62abed,0a747424):  /* cdecl */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_CDECL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case H_(72b2e41b,494c5a44): case H_(f2356d59,f25fc9bd):  /* thiscall */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_THISCALL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case H_(0d0ffc42,ab746f88): case H_(21c54ba1,7f0ca7e3):  /* fastcall */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_FASTCALL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case H_(ef76b040,9412e06a): case H_(de56697b,c750e6e1):  /* stdcall */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_STDCALL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case H_(ea78b622,f234bd8e): case H_(252ffb06,8d50f34b):  /* sseregparm */
+	decl->fattr |= CTF_SSEREGPARM;
+	decl->fattr |= CTFP_CCONV;
+	break;
+#endif
+      default:  /* Skip all other attributes. */
+	goto skip_attr;
+      }
+    } else if (cp->tok >= CTOK_FIRSTDECL) {  /* For __attribute((const)) etc. */
+      cp_next(cp);
+    skip_attr:
+      if (cp_opt(cp, '(')) {
+	while (cp->tok != ')' && cp->tok != CTOK_EOF) cp_next(cp);
+	cp_check(cp, ')');
+      }
+    } else {
+      break;
+    }
+    if (!cp_opt(cp, ',')) break;
+  }
+  cp_check(cp, ')');
+  cp_check(cp, ')');
+}
+
+/* Parse MSVC __declspec(...). */
+static void cp_decl_msvcattribute(CPState *cp, CPDecl *decl)
+{
+  cp_next(cp);
+  cp_check(cp, '(');
+  while (cp->tok == CTOK_IDENT) {
+    GCstr *attrstr = cp->str;
+    cp_next(cp);
+    switch (attrstr->hash) {
+    case H_(bc2395fa,98f267f8):  /* align */
+      cp_decl_align(cp, decl);
+      break;
+    default:  /* Ignore all other attributes. */
+      if (cp_opt(cp, '(')) {
+	while (cp->tok != ')' && cp->tok != CTOK_EOF) cp_next(cp);
+	cp_check(cp, ')');
+      }
+      break;
+    }
+  }
+  cp_check(cp, ')');
+}
+
+/* Parse declaration attributes (and common qualifiers). */
+static void cp_decl_attributes(CPState *cp, CPDecl *decl)
+{
+  for (;;) {
+    switch (cp->tok) {
+    case CTOK_CONST: decl->attr |= CTF_CONST; break;
+    case CTOK_VOLATILE: decl->attr |= CTF_VOLATILE; break;
+    case CTOK_RESTRICT: break;  /* Ignore. */
+    case CTOK_EXTENSION: break;  /* Ignore. */
+    case CTOK_ATTRIBUTE: cp_decl_gccattribute(cp, decl); continue;
+    case CTOK_ASM: cp_decl_asm(cp, decl); continue;
+    case CTOK_DECLSPEC: cp_decl_msvcattribute(cp, decl); continue;
+    case CTOK_CCDECL:
+#if LJ_TARGET_X86
+      CTF_INSERT(decl->fattr, CCONV, cp->ct->size);
+      decl->fattr |= CTFP_CCONV;
+#endif
+      break;
+    case CTOK_PTRSZ:
+#if LJ_64
+      CTF_INSERT(decl->attr, MSIZEP, cp->ct->size);
+#endif
+      break;
+    default: return;
+    }
+    cp_next(cp);
+  }
+}
+
+/* Parse struct/union/enum name. */
+static CTypeID cp_struct_name(CPState *cp, CPDecl *sdecl, CTInfo info)
+{
+  CTypeID sid;
+  CType *ct;
+  cp->tmask = CPNS_STRUCT;
+  cp_next(cp);
+  cp_decl_attributes(cp, sdecl);
+  cp->tmask = CPNS_DEFAULT;
+  if (cp->tok != '{') {
+    if (cp->tok != CTOK_IDENT) cp_err_token(cp, CTOK_IDENT);
+    if (cp->val.id) {  /* Name of existing struct/union/enum. */
+      sid = cp->val.id;
+      ct = cp->ct;
+      if ((ct->info ^ info) & (CTMASK_NUM|CTF_UNION))  /* Wrong type. */
+	cp_errmsg(cp, 0, LJ_ERR_FFI_REDEF, strdata(gco2str(gcref(ct->name))));
+    } else {  /* Create named, incomplete struct/union/enum. */
+      if ((cp->mode & CPARSE_MODE_NOIMPLICIT))
+	cp_errmsg(cp, 0, LJ_ERR_FFI_BADTAG, strdata(cp->str));
+      sid = lj_ctype_new(cp->cts, &ct);
+      ct->info = info;
+      ct->size = CTSIZE_INVALID;
+      ctype_setname(ct, cp->str);
+      lj_ctype_addname(cp->cts, ct, sid);
+    }
+    cp_next(cp);
+  } else {  /* Create anonymous, incomplete struct/union/enum. */
+    sid = lj_ctype_new(cp->cts, &ct);
+    ct->info = info;
+    ct->size = CTSIZE_INVALID;
+  }
+  if (cp->tok == '{') {
+    if (ct->size != CTSIZE_INVALID || ct->sib)
+      cp_errmsg(cp, 0, LJ_ERR_FFI_REDEF, strdata(gco2str(gcref(ct->name))));
+    ct->sib = 1;  /* Indicate the type is currently being defined. */
+  }
+  return sid;
+}
+
+/* Determine field alignment. */
+static CTSize cp_field_align(CPState *cp, CType *ct, CTInfo info)
+{
+  CTSize align = ctype_align(info);
+  UNUSED(cp); UNUSED(ct);
+#if (LJ_TARGET_X86 && !LJ_ABI_WIN) || (LJ_TARGET_ARM && __APPLE__)
+  /* The SYSV i386 and iOS ABIs limit alignment of non-vector fields to 2^2. */
+  if (align > 2 && !(info & CTFP_ALIGNED)) {
+    if (ctype_isarray(info) && !(info & CTF_VECTOR)) {
+      do {
+	ct = ctype_rawchild(cp->cts, ct);
+	info = ct->info;
+      } while (ctype_isarray(info) && !(info & CTF_VECTOR));
+    }
+    if (ctype_isnum(info) || ctype_isenum(info))
+      align = 2;
+  }
+#endif
+  return align;
+}
+
+/* Layout struct/union fields. */
+static void cp_struct_layout(CPState *cp, CTypeID sid, CTInfo sattr)
+{
+  CTSize bofs = 0, bmaxofs = 0;  /* Bit offset and max. bit offset. */
+  CTSize maxalign = ctype_align(sattr);
+  CType *sct = ctype_get(cp->cts, sid);
+  CTInfo sinfo = sct->info;
+  CTypeID fieldid = sct->sib;
+  while (fieldid) {
+    CType *ct = ctype_get(cp->cts, fieldid);
+    CTInfo attr = ct->size;  /* Field declaration attributes (temp.). */
+
+    if (ctype_isfield(ct->info) ||
+	(ctype_isxattrib(ct->info, CTA_SUBTYPE) && attr)) {
+      CTSize align, amask;  /* Alignment (pow2) and alignment mask (bits). */
+      CTSize sz;
+      CTInfo info = lj_ctype_info(cp->cts, ctype_cid(ct->info), &sz);
+      CTSize bsz, csz = 8*sz;  /* Field size and container size (in bits). */
+      sinfo |= (info & (CTF_QUAL|CTF_VLA));  /* Merge pseudo-qualifiers. */
+
+      /* Check for size overflow and determine alignment. */
+      if (sz >= 0x20000000u || bofs + csz < bofs || (info & CTF_VLA)) {
+	if (!(sz == CTSIZE_INVALID && ctype_isarray(info) &&
+	      !(sinfo & CTF_UNION)))
+	  cp_err(cp, LJ_ERR_FFI_INVSIZE);
+	csz = sz = 0;  /* Treat a[] and a[?] as zero-sized. */
+      }
+      align = cp_field_align(cp, ct, info);
+      if (((attr|sattr) & CTFP_PACKED) ||
+	  ((attr & CTFP_ALIGNED) && ctype_align(attr) > align))
+	align = ctype_align(attr);
+      if (cp->packstack[cp->curpack] < align)
+	align = cp->packstack[cp->curpack];
+      if (align > maxalign) maxalign = align;
+      amask = (8u << align) - 1;
+
+      bsz = ctype_bitcsz(ct->info);  /* Bitfield size (temp.). */
+      if (bsz == CTBSZ_FIELD || !ctype_isfield(ct->info)) {
+	bsz = csz;  /* Regular fields or subtypes always fill the container. */
+	bofs = (bofs + amask) & ~amask;  /* Start new aligned field. */
+	ct->size = (bofs >> 3);  /* Store field offset. */
+      } else {  /* Bitfield. */
+	if (bsz == 0 || (attr & CTFP_ALIGNED) ||
+	    (!((attr|sattr) & CTFP_PACKED) && (bofs & amask) + bsz > csz))
+	  bofs = (bofs + amask) & ~amask;  /* Start new aligned field. */
+
+	/* Prefer regular field over bitfield. */
+	if (bsz == csz && (bofs & amask) == 0) {
+	  ct->info = CTINFO(CT_FIELD, ctype_cid(ct->info));
+	  ct->size = (bofs >> 3);  /* Store field offset. */
+	} else {
+	  ct->info = CTINFO(CT_BITFIELD,
+	    (info & (CTF_QUAL|CTF_UNSIGNED|CTF_BOOL)) +
+	    (csz << (CTSHIFT_BITCSZ-3)) + (bsz << CTSHIFT_BITBSZ));
+#if LJ_BE
+	  ct->info += ((csz - (bofs & (csz-1)) - bsz) << CTSHIFT_BITPOS);
+#else
+	  ct->info += ((bofs & (csz-1)) << CTSHIFT_BITPOS);
+#endif
+	  ct->size = ((bofs & ~(csz-1)) >> 3);  /* Store container offset. */
+	}
+      }
+
+      /* Determine next offset or max. offset. */
+      if ((sinfo & CTF_UNION)) {
+	if (bsz > bmaxofs) bmaxofs = bsz;
+      } else {
+	bofs += bsz;
+      }
+    }  /* All other fields in the chain are already set up. */
+
+    fieldid = ct->sib;
+  }
+
+  /* Complete struct/union. */
+  sct->info = sinfo + CTALIGN(maxalign);
+  bofs = (sinfo & CTF_UNION) ? bmaxofs : bofs;
+  maxalign = (8u << maxalign) - 1;
+  sct->size = (((bofs + maxalign) & ~maxalign) >> 3);
+}
+
+/* Parse struct/union declaration. */
+static CTypeID cp_decl_struct(CPState *cp, CPDecl *sdecl, CTInfo sinfo)
+{
+  CTypeID sid = cp_struct_name(cp, sdecl, sinfo);
+  if (cp_opt(cp, '{')) {  /* Struct/union definition. */
+    CTypeID lastid = sid;
+    int lastdecl = 0;
+    while (cp->tok != '}') {
+      CPDecl decl;
+      CPscl scl = cp_decl_spec(cp, &decl, CDF_STATIC);
+      decl.mode = scl ? CPARSE_MODE_DIRECT :
+	CPARSE_MODE_DIRECT|CPARSE_MODE_ABSTRACT|CPARSE_MODE_FIELD;
+
+      for (;;) {
+	CTypeID ctypeid;
+
+	if (lastdecl) cp_err_token(cp, '}');
+
+	/* Parse field declarator. */
+	decl.bits = CTSIZE_INVALID;
+	cp_declarator(cp, &decl);
+	ctypeid = cp_decl_intern(cp, &decl);
+
+	if ((scl & CDF_STATIC)) {  /* Static constant in struct namespace. */
+	  CType *ct;
+	  CTypeID fieldid = cp_decl_constinit(cp, &ct, ctypeid);
+	  ctype_get(cp->cts, lastid)->sib = fieldid;
+	  lastid = fieldid;
+	  ctype_setname(ct, decl.name);
+	} else {
+	  CTSize bsz = CTBSZ_FIELD;  /* Temp. for layout phase. */
+	  CType *ct;
+	  CTypeID fieldid = lj_ctype_new(cp->cts, &ct);  /* Do this first. */
+	  CType *tct = ctype_raw(cp->cts, ctypeid);
+
+	  if (decl.bits == CTSIZE_INVALID) {  /* Regular field. */
+	    if (ctype_isarray(tct->info) && tct->size == CTSIZE_INVALID)
+	      lastdecl = 1;  /* a[] or a[?] must be the last declared field. */
+
+	    /* Accept transparent struct/union/enum. */
+	    if (!decl.name) {
+	      if (!((ctype_isstruct(tct->info) && !(tct->info & CTF_VLA)) ||
+		    ctype_isenum(tct->info)))
+		cp_err_token(cp, CTOK_IDENT);
+	      ct->info = CTINFO(CT_ATTRIB, CTATTRIB(CTA_SUBTYPE) + ctypeid);
+	      ct->size = ctype_isstruct(tct->info) ?
+			 (decl.attr|0x80000000u) : 0;  /* For layout phase. */
+	      goto add_field;
+	    }
+	  } else {  /* Bitfield. */
+	    bsz = decl.bits;
+	    if (!ctype_isinteger_or_bool(tct->info) ||
+		(bsz == 0 && decl.name) || 8*tct->size > CTBSZ_MAX ||
+		bsz > ((tct->info & CTF_BOOL) ? 1 : 8*tct->size))
+	      cp_errmsg(cp, ':', LJ_ERR_BADVAL);
+	  }
+
+	  /* Create temporary field for layout phase. */
+	  ct->info = CTINFO(CT_FIELD, ctypeid + (bsz << CTSHIFT_BITCSZ));
+	  ct->size = decl.attr;
+	  if (decl.name) ctype_setname(ct, decl.name);
+
+	add_field:
+	  ctype_get(cp->cts, lastid)->sib = fieldid;
+	  lastid = fieldid;
+	}
+	if (!cp_opt(cp, ',')) break;
+	cp_decl_reset(&decl);
+      }
+      cp_check(cp, ';');
+    }
+    cp_check(cp, '}');
+    ctype_get(cp->cts, lastid)->sib = 0;  /* Drop sib = 1 for empty structs. */
+    cp_decl_attributes(cp, sdecl);  /* Layout phase needs postfix attributes. */
+    cp_struct_layout(cp, sid, sdecl->attr);
+  }
+  return sid;
+}
+
+/* Parse enum declaration. */
+static CTypeID cp_decl_enum(CPState *cp, CPDecl *sdecl)
+{
+  CTypeID eid = cp_struct_name(cp, sdecl, CTINFO(CT_ENUM, CTID_VOID));
+  CTInfo einfo = CTINFO(CT_ENUM, CTALIGN(2) + CTID_UINT32);
+  CTSize esize = 4;  /* Only 32 bit enums are supported. */
+  if (cp_opt(cp, '{')) {  /* Enum definition. */
+    CPValue k;
+    CTypeID lastid = eid;
+    k.u32 = 0;
+    k.id = CTID_INT32;
+    do {
+      GCstr *name = cp->str;
+      if (cp->tok != CTOK_IDENT) cp_err_token(cp, CTOK_IDENT);
+      if (cp->val.id) cp_errmsg(cp, 0, LJ_ERR_FFI_REDEF, strdata(name));
+      cp_next(cp);
+      if (cp_opt(cp, '=')) {
+	cp_expr_kint(cp, &k);
+	if (k.id == CTID_UINT32) {
+	  /* C99 says that enum constants are always (signed) integers.
+	  ** But since unsigned constants like 0x80000000 are quite common,
+	  ** those are left as uint32_t.
+	  */
+	  if (k.i32 >= 0) k.id = CTID_INT32;
+	} else {
+	  /* OTOH it's common practice and even mandated by some ABIs
+	  ** that the enum type itself is unsigned, unless there are any
+	  ** negative constants.
+	  */
+	  k.id = CTID_INT32;
+	  if (k.i32 < 0) einfo = CTINFO(CT_ENUM, CTALIGN(2) + CTID_INT32);
+	}
+      }
+      /* Add named enum constant. */
+      {
+	CType *ct;
+	CTypeID constid = lj_ctype_new(cp->cts, &ct);
+	ctype_get(cp->cts, lastid)->sib = constid;
+	lastid = constid;
+	ctype_setname(ct, name);
+	ct->info = CTINFO(CT_CONSTVAL, CTF_CONST|k.id);
+	ct->size = k.u32++;
+	if (k.u32 == 0x80000000u) k.id = CTID_UINT32;
+	lj_ctype_addname(cp->cts, ct, constid);
+      }
+      if (!cp_opt(cp, ',')) break;
+    } while (cp->tok != '}');  /* Trailing ',' is ok. */
+    cp_check(cp, '}');
+    /* Complete enum. */
+    ctype_get(cp->cts, eid)->info = einfo;
+    ctype_get(cp->cts, eid)->size = esize;
+  }
+  return eid;
+}
+
+/* Parse declaration specifiers. */
+static CPscl cp_decl_spec(CPState *cp, CPDecl *decl, CPscl scl)
+{
+  uint32_t cds = 0, sz = 0;
+  CTypeID tdef = 0;
+
+  decl->cp = cp;
+  decl->mode = cp->mode;
+  decl->name = NULL;
+  decl->redir = NULL;
+  decl->attr = 0;
+  decl->fattr = 0;
+  decl->pos = decl->top = 0;
+  decl->stack[0].next = 0;
+
+  for (;;) {  /* Parse basic types. */
+    cp_decl_attributes(cp, decl);
+    if (cp->tok >= CTOK_FIRSTDECL && cp->tok <= CTOK_LASTDECLFLAG) {
+      uint32_t cbit;
+      if (cp->ct->size) {
+	if (sz) goto end_decl;
+	sz = cp->ct->size;
+      }
+      cbit = (1u << (cp->tok - CTOK_FIRSTDECL));
+      cds = cds | cbit | ((cbit & cds & CDF_LONG) << 1);
+      if (cp->tok >= CTOK_FIRSTSCL) {
+	if (!(scl & cbit)) cp_errmsg(cp, cp->tok, LJ_ERR_FFI_BADSCL);
+      } else if (tdef) {
+	goto end_decl;
+      }
+      cp_next(cp);
+      continue;
+    }
+    if (sz || tdef ||
+	(cds & (CDF_SHORT|CDF_LONG|CDF_SIGNED|CDF_UNSIGNED|CDF_COMPLEX)))
+      break;
+    switch (cp->tok) {
+    case CTOK_STRUCT:
+      tdef = cp_decl_struct(cp, decl, CTINFO(CT_STRUCT, 0));
+      continue;
+    case CTOK_UNION:
+      tdef = cp_decl_struct(cp, decl, CTINFO(CT_STRUCT, CTF_UNION));
+      continue;
+    case CTOK_ENUM:
+      tdef = cp_decl_enum(cp, decl);
+      continue;
+    case CTOK_IDENT:
+      if (ctype_istypedef(cp->ct->info)) {
+	tdef = ctype_cid(cp->ct->info);  /* Get typedef. */
+	cp_next(cp);
+	continue;
+      }
+      break;
+    case '$':
+      tdef = cp->val.id;
+      cp_next(cp);
+      continue;
+    default:
+      break;
+    }
+    break;
+  }
+end_decl:
+
+  if ((cds & CDF_COMPLEX))  /* Use predefined complex types. */
+    tdef = sz == 4 ? CTID_COMPLEX_FLOAT : CTID_COMPLEX_DOUBLE;
+
+  if (tdef) {
+    cp_push_type(decl, tdef);
+  } else if ((cds & CDF_VOID)) {
+    cp_push(decl, CTINFO(CT_VOID, (decl->attr & CTF_QUAL)), CTSIZE_INVALID);
+    decl->attr &= ~CTF_QUAL;
+  } else {
+    /* Determine type info and size. */
+    CTInfo info = CTINFO(CT_NUM, (cds & CDF_UNSIGNED) ? CTF_UNSIGNED : 0);
+    if ((cds & CDF_BOOL)) {
+      if ((cds & ~(CDF_SCL|CDF_BOOL|CDF_INT|CDF_SIGNED|CDF_UNSIGNED)))
+	cp_errmsg(cp, 0, LJ_ERR_FFI_INVTYPE);
+      info |= CTF_BOOL;
+      if (!(cds & CDF_SIGNED)) info |= CTF_UNSIGNED;
+      if (!sz) {
+	sz = 1;
+      }
+    } else if ((cds & CDF_FP)) {
+      info = CTINFO(CT_NUM, CTF_FP);
+      if ((cds & CDF_LONG)) sz = sizeof(long double);
+    } else if ((cds & CDF_CHAR)) {
+      if ((cds & (CDF_CHAR|CDF_SIGNED|CDF_UNSIGNED)) == CDF_CHAR)
+	info |= CTF_UCHAR;  /* Handle platforms where char is unsigned. */
+    } else if ((cds & CDF_SHORT)) {
+      sz = sizeof(short);
+    } else if ((cds & CDF_LONGLONG)) {
+      sz = 8;
+    } else if ((cds & CDF_LONG)) {
+      info |= CTF_LONG;
+      sz = sizeof(long);
+    } else if (!sz) {
+      if (!(cds & (CDF_SIGNED|CDF_UNSIGNED)))
+	cp_errmsg(cp, cp->tok, LJ_ERR_FFI_DECLSPEC);
+      sz = sizeof(int);
+    }
+    lua_assert(sz != 0);
+    info += CTALIGN(lj_fls(sz));  /* Use natural alignment. */
+    info += (decl->attr & CTF_QUAL);  /* Merge qualifiers. */
+    cp_push(decl, info, sz);
+    decl->attr &= ~CTF_QUAL;
+  }
+  decl->specpos = decl->pos;
+  decl->specattr = decl->attr;
+  decl->specfattr = decl->fattr;
+  return (cds & CDF_SCL);  /* Return storage class. */
+}
+
+/* Parse array declaration. */
+static void cp_decl_array(CPState *cp, CPDecl *decl)
+{
+  CTInfo info = CTINFO(CT_ARRAY, 0);
+  CTSize nelem = CTSIZE_INVALID;  /* Default size for a[] or a[?]. */
+  cp_decl_attributes(cp, decl);
+  if (cp_opt(cp, '?'))
+    info |= CTF_VLA;  /* Create variable-length array a[?]. */
+  else if (cp->tok != ']')
+    nelem = cp_expr_ksize(cp);
+  cp_check(cp, ']');
+  cp_add(decl, info, nelem);
+}
+
+/* Parse function declaration. */
+static void cp_decl_func(CPState *cp, CPDecl *fdecl)
+{
+  CTSize nargs = 0;
+  CTInfo info = CTINFO(CT_FUNC, 0);
+  CTypeID lastid = 0, anchor = 0;
+  if (cp->tok != ')') {
+    do {
+      CPDecl decl;
+      CTypeID ctypeid, fieldid;
+      CType *ct;
+      if (cp_opt(cp, '.')) {  /* Vararg function. */
+	cp_check(cp, '.');  /* Workaround for the minimalistic lexer. */
+	cp_check(cp, '.');
+	info |= CTF_VARARG;
+	break;
+      }
+      cp_decl_spec(cp, &decl, CDF_REGISTER);
+      decl.mode = CPARSE_MODE_DIRECT|CPARSE_MODE_ABSTRACT;
+      cp_declarator(cp, &decl);
+      ctypeid = cp_decl_intern(cp, &decl);
+      ct = ctype_raw(cp->cts, ctypeid);
+      if (ctype_isvoid(ct->info))
+	break;
+      else if (ctype_isrefarray(ct->info))
+	ctypeid = lj_ctype_intern(cp->cts,
+	  CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(ct->info)), CTSIZE_PTR);
+      else if (ctype_isfunc(ct->info))
+	ctypeid = lj_ctype_intern(cp->cts,
+	  CTINFO(CT_PTR, CTALIGN_PTR|ctypeid), CTSIZE_PTR);
+      /* Add new parameter. */
+      fieldid = lj_ctype_new(cp->cts, &ct);
+      if (anchor)
+	ctype_get(cp->cts, lastid)->sib = fieldid;
+      else
+	anchor = fieldid;
+      lastid = fieldid;
+      if (decl.name) ctype_setname(ct, decl.name);
+      ct->info = CTINFO(CT_FIELD, ctypeid);
+      ct->size = nargs++;
+    } while (cp_opt(cp, ','));
+  }
+  cp_check(cp, ')');
+  if (cp_opt(cp, '{')) {  /* Skip function definition. */
+    int level = 1;
+    cp->mode |= CPARSE_MODE_SKIP;
+    for (;;) {
+      if (cp->tok == '{') level++;
+      else if (cp->tok == '}' && --level == 0) break;
+      else if (cp->tok == CTOK_EOF) cp_err_token(cp, '}');
+      cp_next(cp);
+    }
+    cp->mode &= ~CPARSE_MODE_SKIP;
+    cp->tok = ';';  /* Ok for cp_decl_multi(), error in cp_decl_single(). */
+  }
+  info |= (fdecl->fattr & ~CTMASK_CID);
+  fdecl->fattr = 0;
+  fdecl->stack[cp_add(fdecl, info, nargs)].sib = anchor;
+}
+
+/* Parse declarator. */
+static void cp_declarator(CPState *cp, CPDecl *decl)
+{
+  if (++cp->depth > CPARSE_MAX_DECLDEPTH) cp_err(cp, LJ_ERR_XLEVELS);
+
+  for (;;) {  /* Head of declarator. */
+    if (cp_opt(cp, '*')) {  /* Pointer. */
+      CTSize sz;
+      CTInfo info;
+      cp_decl_attributes(cp, decl);
+      sz = CTSIZE_PTR;
+      info = CTINFO(CT_PTR, CTALIGN_PTR);
+#if LJ_64
+      if (ctype_msizeP(decl->attr) == 4) {
+	sz = 4;
+	info = CTINFO(CT_PTR, CTALIGN(2));
+      }
+#endif
+      info += (decl->attr & (CTF_QUAL|CTF_REF));
+      decl->attr &= ~(CTF_QUAL|(CTMASK_MSIZEP<<CTSHIFT_MSIZEP));
+      cp_push(decl, info, sz);
+    } else if (cp_opt(cp, '&') || cp_opt(cp, CTOK_ANDAND)) {  /* Reference. */
+      decl->attr &= ~(CTF_QUAL|(CTMASK_MSIZEP<<CTSHIFT_MSIZEP));
+      cp_push(decl, CTINFO_REF(0), CTSIZE_PTR);
+    } else {
+      break;
+    }
+  }
+
+  if (cp_opt(cp, '(')) {  /* Inner declarator. */
+    CPDeclIdx pos;
+    cp_decl_attributes(cp, decl);
+    /* Resolve ambiguity between inner declarator and 1st function parameter. */
+    if ((decl->mode & CPARSE_MODE_ABSTRACT) &&
+	(cp->tok == ')' || cp_istypedecl(cp))) goto func_decl;
+    pos = decl->pos;
+    cp_declarator(cp, decl);
+    cp_check(cp, ')');
+    decl->pos = pos;
+  } else if (cp->tok == CTOK_IDENT) {  /* Direct declarator. */
+    if (!(decl->mode & CPARSE_MODE_DIRECT)) cp_err_token(cp, CTOK_EOF);
+    decl->name = cp->str;
+    decl->nameid = cp->val.id;
+    cp_next(cp);
+  } else {  /* Abstract declarator. */
+    if (!(decl->mode & CPARSE_MODE_ABSTRACT)) cp_err_token(cp, CTOK_IDENT);
+  }
+
+  for (;;) {  /* Tail of declarator. */
+    if (cp_opt(cp, '[')) {  /* Array. */
+      cp_decl_array(cp, decl);
+    } else if (cp_opt(cp, '(')) {  /* Function. */
+    func_decl:
+      cp_decl_func(cp, decl);
+    } else {
+      break;
+    }
+  }
+
+  if ((decl->mode & CPARSE_MODE_FIELD) && cp_opt(cp, ':'))  /* Field width. */
+    decl->bits = cp_expr_ksize(cp);
+
+  /* Process postfix attributes. */
+  cp_decl_attributes(cp, decl);
+  cp_push_attributes(decl);
+
+  cp->depth--;
+}
+
+/* Parse an abstract type declaration and return it's C type ID. */
+static CTypeID cp_decl_abstract(CPState *cp)
+{
+  CPDecl decl;
+  cp_decl_spec(cp, &decl, 0);
+  decl.mode = CPARSE_MODE_ABSTRACT;
+  cp_declarator(cp, &decl);
+  return cp_decl_intern(cp, &decl);
+}
+
+/* Handle pragmas. */
+static void cp_pragma(CPState *cp, BCLine pragmaline)
+{
+  cp_next(cp);
+  if (cp->tok == CTOK_IDENT &&
+      cp->str->hash == H_(e79b999f,42ca3e85))  {  /* pack */
+    cp_next(cp);
+    cp_check(cp, '(');
+    if (cp->tok == CTOK_IDENT) {
+      if (cp->str->hash == H_(738e923c,a1b65954)) {  /* push */
+	if (cp->curpack < CPARSE_MAX_PACKSTACK) {
+	  cp->packstack[cp->curpack+1] = cp->packstack[cp->curpack];
+	  cp->curpack++;
+	}
+      } else if (cp->str->hash == H_(6c71cf27,6c71cf27)) {  /* pop */
+	if (cp->curpack > 0) cp->curpack--;
+      } else {
+	cp_errmsg(cp, cp->tok, LJ_ERR_XSYMBOL);
+      }
+      cp_next(cp);
+      if (!cp_opt(cp, ',')) goto end_pack;
+    }
+    if (cp->tok == CTOK_INTEGER) {
+      cp->packstack[cp->curpack] = cp->val.u32 ? lj_fls(cp->val.u32) : 0;
+      cp_next(cp);
+    } else {
+      cp->packstack[cp->curpack] = 255;
+    }
+  end_pack:
+    cp_check(cp, ')');
+  } else {  /* Ignore all other pragmas. */
+    while (cp->tok != CTOK_EOF && cp->linenumber == pragmaline)
+      cp_next(cp);
+  }
+}
+
+/* Parse multiple C declarations of types or extern identifiers. */
+static void cp_decl_multi(CPState *cp)
+{
+  int first = 1;
+  while (cp->tok != CTOK_EOF) {
+    CPDecl decl;
+    CPscl scl;
+    if (cp_opt(cp, ';')) {  /* Skip empty statements. */
+      first = 0;
+      continue;
+    }
+    if (cp->tok == '#') {  /* Workaround, since we have no preprocessor, yet. */
+      BCLine pragmaline = cp->linenumber;
+      if (!(cp_next(cp) == CTOK_IDENT &&
+	    cp->str->hash == H_(f5e6b4f8,1d509107)))  /* pragma */
+	cp_errmsg(cp, cp->tok, LJ_ERR_XSYMBOL);
+      cp_pragma(cp, pragmaline);
+      continue;
+    }
+    scl = cp_decl_spec(cp, &decl, CDF_TYPEDEF|CDF_EXTERN|CDF_STATIC);
+    if ((cp->tok == ';' || cp->tok == CTOK_EOF) &&
+	ctype_istypedef(decl.stack[0].info)) {
+      CTInfo info = ctype_rawchild(cp->cts, &decl.stack[0])->info;
+      if (ctype_isstruct(info) || ctype_isenum(info))
+	goto decl_end;  /* Accept empty declaration of struct/union/enum. */
+    }
+    for (;;) {
+      CTypeID ctypeid;
+      cp_declarator(cp, &decl);
+      ctypeid = cp_decl_intern(cp, &decl);
+      if (decl.name && !decl.nameid) {  /* NYI: redeclarations are ignored. */
+	CType *ct;
+	CTypeID id;
+	if ((scl & CDF_TYPEDEF)) {  /* Create new typedef. */
+	  id = lj_ctype_new(cp->cts, &ct);
+	  ct->info = CTINFO(CT_TYPEDEF, ctypeid);
+	  goto noredir;
+	} else if (ctype_isfunc(ctype_get(cp->cts, ctypeid)->info)) {
+	  /* Treat both static and extern function declarations as extern. */
+	  ct = ctype_get(cp->cts, ctypeid);
+	  /* We always get new anonymous functions (typedefs are copied). */
+	  lua_assert(gcref(ct->name) == NULL);
+	  id = ctypeid;  /* Just name it. */
+	} else if ((scl & CDF_STATIC)) {  /* Accept static constants. */
+	  id = cp_decl_constinit(cp, &ct, ctypeid);
+	  goto noredir;
+	} else {  /* External references have extern or no storage class. */
+	  id = lj_ctype_new(cp->cts, &ct);
+	  ct->info = CTINFO(CT_EXTERN, ctypeid);
+	}
+	if (decl.redir) {  /* Add attribute for redirected symbol name. */
+	  CType *cta;
+	  CTypeID aid = lj_ctype_new(cp->cts, &cta);
+	  ct = ctype_get(cp->cts, id);  /* Table may have been reallocated. */
+	  cta->info = CTINFO(CT_ATTRIB, CTATTRIB(CTA_REDIR));
+	  cta->sib = ct->sib;
+	  ct->sib = aid;
+	  ctype_setname(cta, decl.redir);
+	}
+      noredir:
+	ctype_setname(ct, decl.name);
+	lj_ctype_addname(cp->cts, ct, id);
+      }
+      if (!cp_opt(cp, ',')) break;
+      cp_decl_reset(&decl);
+    }
+  decl_end:
+    if (cp->tok == CTOK_EOF && first) break;  /* May omit ';' for 1 decl. */
+    first = 0;
+    cp_check(cp, ';');
+  }
+}
+
+/* Parse a single C type declaration. */
+static void cp_decl_single(CPState *cp)
+{
+  CPDecl decl;
+  cp_decl_spec(cp, &decl, 0);
+  cp_declarator(cp, &decl);
+  cp->val.id = cp_decl_intern(cp, &decl);
+  if (cp->tok != CTOK_EOF) cp_err_token(cp, CTOK_EOF);
+}
+
+#undef H_
+
+/* ------------------------------------------------------------------------ */
+
+/* Protected callback for C parser. */
+static TValue *cpcparser(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  CPState *cp = (CPState *)ud;
+  UNUSED(dummy);
+  cframe_errfunc(L->cframe) = -1;  /* Inherit error function. */
+  cp_init(cp);
+  if ((cp->mode & CPARSE_MODE_MULTI))
+    cp_decl_multi(cp);
+  else
+    cp_decl_single(cp);
+  if (cp->param && cp->param != cp->L->top)
+    cp_err(cp, LJ_ERR_FFI_NUMPARAM);
+  lua_assert(cp->depth == 0);
+  return NULL;
+}
+
+/* C parser. */
+int lj_cparse(CPState *cp)
+{
+  LJ_CTYPE_SAVE(cp->cts);
+  int errcode = lj_vm_cpcall(cp->L, NULL, cp, cpcparser);
+  if (errcode)
+    LJ_CTYPE_RESTORE(cp->cts);
+  cp_cleanup(cp);
+  return errcode;
+}
+
+#endif
diff --git a/lib/luajit/src/lj_cparse.h b/lib/luajit/src/lj_cparse.h
new file mode 100644
index 00000000..586f4945
--- /dev/null
+++ b/lib/luajit/src/lj_cparse.h
@@ -0,0 +1,65 @@
+/*
+** C declaration parser.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CPARSE_H
+#define _LJ_CPARSE_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* C parser limits. */
+#define CPARSE_MAX_BUF		32768	/* Max. token buffer size. */
+#define CPARSE_MAX_DECLSTACK	100	/* Max. declaration stack depth. */
+#define CPARSE_MAX_DECLDEPTH	20	/* Max. recursive declaration depth. */
+#define CPARSE_MAX_PACKSTACK	7	/* Max. pack pragma stack depth. */
+
+/* Flags for C parser mode. */
+#define CPARSE_MODE_MULTI	1	/* Process multiple declarations. */
+#define CPARSE_MODE_ABSTRACT	2	/* Accept abstract declarators. */
+#define CPARSE_MODE_DIRECT	4	/* Accept direct declarators. */
+#define CPARSE_MODE_FIELD	8	/* Accept field width in bits, too. */
+#define CPARSE_MODE_NOIMPLICIT	16	/* Reject implicit declarations. */
+#define CPARSE_MODE_SKIP	32	/* Skip definitions, ignore errors. */
+
+typedef int CPChar;	/* C parser character. Unsigned ext. from char. */
+typedef int CPToken;	/* C parser token. */
+
+/* C parser internal value representation. */
+typedef struct CPValue {
+  union {
+    int32_t i32;	/* Value for CTID_INT32. */
+    uint32_t u32;	/* Value for CTID_UINT32. */
+  };
+  CTypeID id;		/* C Type ID of the value. */
+} CPValue;
+
+/* C parser state. */
+typedef struct CPState {
+  CPChar c;		/* Current character. */
+  CPToken tok;		/* Current token. */
+  CPValue val;		/* Token value. */
+  GCstr *str;		/* Interned string of identifier/keyword. */
+  CType *ct;		/* C type table entry. */
+  const char *p;	/* Current position in input buffer. */
+  SBuf sb;		/* String buffer for tokens. */
+  lua_State *L;		/* Lua state. */
+  CTState *cts;		/* C type state. */
+  TValue *param;	/* C type parameters. */
+  const char *srcname;	/* Current source name. */
+  BCLine linenumber;	/* Input line counter. */
+  int depth;		/* Recursive declaration depth. */
+  uint32_t tmask;	/* Type mask for next identifier. */
+  uint32_t mode;	/* C parser mode. */
+  uint8_t packstack[CPARSE_MAX_PACKSTACK];  /* Stack for pack pragmas. */
+  uint8_t curpack;	/* Current position in pack pragma stack. */
+} CPState;
+
+LJ_FUNC int lj_cparse(CPState *cp);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_crecord.c b/lib/luajit/src/lj_crecord.c
new file mode 100644
index 00000000..da9013f0
--- /dev/null
+++ b/lib/luajit/src/lj_crecord.c
@@ -0,0 +1,1653 @@
+/*
+** Trace recorder for C data operations.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_ffrecord_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT && LJ_HASFFI
+
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_frame.h"
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_cparse.h"
+#include "lj_cconv.h"
+#include "lj_clib.h"
+#include "lj_ccall.h"
+#include "lj_ff.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_record.h"
+#include "lj_ffrecord.h"
+#include "lj_snap.h"
+#include "lj_crecord.h"
+#include "lj_dispatch.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+#define emitconv(a, dt, st, flags) \
+  emitir(IRT(IR_CONV, (dt)), (a), (st)|((dt) << 5)|(flags))
+
+/* -- C type checks ------------------------------------------------------- */
+
+static GCcdata *argv2cdata(jit_State *J, TRef tr, cTValue *o)
+{
+  GCcdata *cd;
+  TRef trtypeid;
+  if (!tref_iscdata(tr))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  cd = cdataV(o);
+  /* Specialize to the CTypeID. */
+  trtypeid = emitir(IRT(IR_FLOAD, IRT_U16), tr, IRFL_CDATA_CTYPEID);
+  emitir(IRTG(IR_EQ, IRT_INT), trtypeid, lj_ir_kint(J, (int32_t)cd->ctypeid));
+  return cd;
+}
+
+/* Specialize to the CTypeID held by a cdata constructor. */
+static CTypeID crec_constructor(jit_State *J, GCcdata *cd, TRef tr)
+{
+  CTypeID id;
+  lua_assert(tref_iscdata(tr) && cd->ctypeid == CTID_CTYPEID);
+  id = *(CTypeID *)cdataptr(cd);
+  tr = emitir(IRT(IR_FLOAD, IRT_INT), tr, IRFL_CDATA_INT);
+  emitir(IRTG(IR_EQ, IRT_INT), tr, lj_ir_kint(J, (int32_t)id));
+  return id;
+}
+
+static CTypeID argv2ctype(jit_State *J, TRef tr, cTValue *o)
+{
+  if (tref_isstr(tr)) {
+    GCstr *s = strV(o);
+    CPState cp;
+    CTypeID oldtop;
+    /* Specialize to the string containing the C type declaration. */
+    emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, s));
+    cp.L = J->L;
+    cp.cts = ctype_ctsG(J2G(J));
+    oldtop = cp.cts->top;
+    cp.srcname = strdata(s);
+    cp.p = strdata(s);
+    cp.param = NULL;
+    cp.mode = CPARSE_MODE_ABSTRACT|CPARSE_MODE_NOIMPLICIT;
+    if (lj_cparse(&cp) || cp.cts->top > oldtop)  /* Avoid new struct defs. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    return cp.val.id;
+  } else {
+    GCcdata *cd = argv2cdata(J, tr, o);
+    return cd->ctypeid == CTID_CTYPEID ? crec_constructor(J, cd, tr) :
+					cd->ctypeid;
+  }
+}
+
+/* Convert CType to IRType (if possible). */
+static IRType crec_ct2irt(CTState *cts, CType *ct)
+{
+  if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+  if (LJ_LIKELY(ctype_isnum(ct->info))) {
+    if ((ct->info & CTF_FP)) {
+      if (ct->size == sizeof(double))
+	return IRT_NUM;
+      else if (ct->size == sizeof(float))
+	return IRT_FLOAT;
+    } else {
+      uint32_t b = lj_fls(ct->size);
+      if (b <= 3)
+	return IRT_I8 + 2*b + ((ct->info & CTF_UNSIGNED) ? 1 : 0);
+    }
+  } else if (ctype_isptr(ct->info)) {
+    return (LJ_64 && ct->size == 8) ? IRT_P64 : IRT_P32;
+  } else if (ctype_iscomplex(ct->info)) {
+    if (ct->size == 2*sizeof(double))
+      return IRT_NUM;
+    else if (ct->size == 2*sizeof(float))
+      return IRT_FLOAT;
+  }
+  return IRT_CDATA;
+}
+
+/* -- Optimized memory fill and copy -------------------------------------- */
+
+/* Maximum length and unroll of inlined copy/fill. */
+#define CREC_COPY_MAXUNROLL		16
+#define CREC_COPY_MAXLEN		128
+
+#define CREC_FILL_MAXUNROLL		16
+
+/* Number of windowed registers used for optimized memory copy. */
+#if LJ_TARGET_X86
+#define CREC_COPY_REGWIN		2
+#elif LJ_TARGET_PPC || LJ_TARGET_MIPS
+#define CREC_COPY_REGWIN		8
+#else
+#define CREC_COPY_REGWIN		4
+#endif
+
+/* List of memory offsets for copy/fill. */
+typedef struct CRecMemList {
+  CTSize ofs;		/* Offset in bytes. */
+  IRType tp;		/* Type of load/store. */
+  TRef trofs;		/* TRef of interned offset. */
+  TRef trval;		/* TRef of load value. */
+} CRecMemList;
+
+/* Generate copy list for element-wise struct copy. */
+static MSize crec_copy_struct(CRecMemList *ml, CTState *cts, CType *ct)
+{
+  CTypeID fid = ct->sib;
+  MSize mlp = 0;
+  while (fid) {
+    CType *df = ctype_get(cts, fid);
+    fid = df->sib;
+    if (ctype_isfield(df->info)) {
+      CType *cct;
+      IRType tp;
+      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+      cct = ctype_rawchild(cts, df);  /* Field type. */
+      tp = crec_ct2irt(cts, cct);
+      if (tp == IRT_CDATA) return 0;  /* NYI: aggregates. */
+      if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+      ml[mlp].ofs = df->size;
+      ml[mlp].tp = tp;
+      mlp++;
+      if (ctype_iscomplex(cct->info)) {
+	if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+	ml[mlp].ofs = df->size + (cct->size >> 1);
+	ml[mlp].tp = tp;
+	mlp++;
+      }
+    } else if (!ctype_isconstval(df->info)) {
+      /* NYI: bitfields and sub-structures. */
+      return 0;
+    }
+  }
+  return mlp;
+}
+
+/* Generate unrolled copy list, from highest to lowest step size/alignment. */
+static MSize crec_copy_unroll(CRecMemList *ml, CTSize len, CTSize step,
+			      IRType tp)
+{
+  CTSize ofs = 0;
+  MSize mlp = 0;
+  if (tp == IRT_CDATA) tp = IRT_U8 + 2*lj_fls(step);
+  do {
+    while (ofs + step <= len) {
+      if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+      ml[mlp].ofs = ofs;
+      ml[mlp].tp = tp;
+      mlp++;
+      ofs += step;
+    }
+    step >>= 1;
+    tp -= 2;
+  } while (ofs < len);
+  return mlp;
+}
+
+/*
+** Emit copy list with windowed loads/stores.
+** LJ_TARGET_UNALIGNED: may emit unaligned loads/stores (not marked as such).
+*/
+static void crec_copy_emit(jit_State *J, CRecMemList *ml, MSize mlp,
+			   TRef trdst, TRef trsrc)
+{
+  MSize i, j, rwin = 0;
+  for (i = 0, j = 0; i < mlp; ) {
+    TRef trofs = lj_ir_kintp(J, ml[i].ofs);
+    TRef trsptr = emitir(IRT(IR_ADD, IRT_PTR), trsrc, trofs);
+    ml[i].trval = emitir(IRT(IR_XLOAD, ml[i].tp), trsptr, 0);
+    ml[i].trofs = trofs;
+    i++;
+    rwin += (LJ_SOFTFP && ml[i].tp == IRT_NUM) ? 2 : 1;
+    if (rwin >= CREC_COPY_REGWIN || i >= mlp) {  /* Flush buffered stores. */
+      rwin = 0;
+      for ( ; j < i; j++) {
+	TRef trdptr = emitir(IRT(IR_ADD, IRT_PTR), trdst, ml[j].trofs);
+	emitir(IRT(IR_XSTORE, ml[j].tp), trdptr, ml[j].trval);
+      }
+    }
+  }
+}
+
+/* Optimized memory copy. */
+static void crec_copy(jit_State *J, TRef trdst, TRef trsrc, TRef trlen,
+		      CType *ct)
+{
+  if (tref_isk(trlen)) {  /* Length must be constant. */
+    CRecMemList ml[CREC_COPY_MAXUNROLL];
+    MSize mlp = 0;
+    CTSize step = 1, len = (CTSize)IR(tref_ref(trlen))->i;
+    IRType tp = IRT_CDATA;
+    int needxbar = 0;
+    if (len == 0) return;  /* Shortcut. */
+    if (len > CREC_COPY_MAXLEN) goto fallback;
+    if (ct) {
+      CTState *cts = ctype_ctsG(J2G(J));
+      lua_assert(ctype_isarray(ct->info) || ctype_isstruct(ct->info));
+      if (ctype_isarray(ct->info)) {
+	CType *cct = ctype_rawchild(cts, ct);
+	tp = crec_ct2irt(cts, cct);
+	if (tp == IRT_CDATA) goto rawcopy;
+	step = lj_ir_type_size[tp];
+	lua_assert((len & (step-1)) == 0);
+      } else if ((ct->info & CTF_UNION)) {
+	step = (1u << ctype_align(ct->info));
+	goto rawcopy;
+      } else {
+	mlp = crec_copy_struct(ml, cts, ct);
+	goto emitcopy;
+      }
+    } else {
+    rawcopy:
+      needxbar = 1;
+      if (LJ_TARGET_UNALIGNED || step >= CTSIZE_PTR)
+	step = CTSIZE_PTR;
+    }
+    mlp = crec_copy_unroll(ml, len, step, tp);
+  emitcopy:
+    if (mlp) {
+      crec_copy_emit(J, ml, mlp, trdst, trsrc);
+      if (needxbar)
+	emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+      return;
+    }
+  }
+fallback:
+  /* Call memcpy. Always needs a barrier to disable alias analysis. */
+  lj_ir_call(J, IRCALL_memcpy, trdst, trsrc, trlen);
+  emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+}
+
+/* Generate unrolled fill list, from highest to lowest step size/alignment. */
+static MSize crec_fill_unroll(CRecMemList *ml, CTSize len, CTSize step)
+{
+  CTSize ofs = 0;
+  MSize mlp = 0;
+  IRType tp = IRT_U8 + 2*lj_fls(step);
+  do {
+    while (ofs + step <= len) {
+      if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+      ml[mlp].ofs = ofs;
+      ml[mlp].tp = tp;
+      mlp++;
+      ofs += step;
+    }
+    step >>= 1;
+    tp -= 2;
+  } while (ofs < len);
+  return mlp;
+}
+
+/*
+** Emit stores for fill list.
+** LJ_TARGET_UNALIGNED: may emit unaligned stores (not marked as such).
+*/
+static void crec_fill_emit(jit_State *J, CRecMemList *ml, MSize mlp,
+			   TRef trdst, TRef trfill)
+{
+  MSize i;
+  for (i = 0; i < mlp; i++) {
+    TRef trofs = lj_ir_kintp(J, ml[i].ofs);
+    TRef trdptr = emitir(IRT(IR_ADD, IRT_PTR), trdst, trofs);
+    emitir(IRT(IR_XSTORE, ml[i].tp), trdptr, trfill);
+  }
+}
+
+/* Optimized memory fill. */
+static void crec_fill(jit_State *J, TRef trdst, TRef trlen, TRef trfill,
+		      CTSize step)
+{
+  if (tref_isk(trlen)) {  /* Length must be constant. */
+    CRecMemList ml[CREC_FILL_MAXUNROLL];
+    MSize mlp;
+    CTSize len = (CTSize)IR(tref_ref(trlen))->i;
+    if (len == 0) return;  /* Shortcut. */
+    if (LJ_TARGET_UNALIGNED || step >= CTSIZE_PTR)
+      step = CTSIZE_PTR;
+    if (step * CREC_FILL_MAXUNROLL < len) goto fallback;
+    mlp = crec_fill_unroll(ml, len, step);
+    if (!mlp) goto fallback;
+    if (tref_isk(trfill) || ml[0].tp != IRT_U8)
+      trfill = emitconv(trfill, IRT_INT, IRT_U8, 0);
+    if (ml[0].tp != IRT_U8) {  /* Scatter U8 to U16/U32/U64. */
+      if (CTSIZE_PTR == 8 && ml[0].tp == IRT_U64) {
+	if (tref_isk(trfill))  /* Pointless on x64 with zero-extended regs. */
+	  trfill = emitconv(trfill, IRT_U64, IRT_U32, 0);
+	trfill = emitir(IRT(IR_MUL, IRT_U64), trfill,
+			lj_ir_kint64(J, U64x(01010101,01010101)));
+      } else {
+	trfill = emitir(IRTI(IR_MUL), trfill,
+		   lj_ir_kint(J, ml[0].tp == IRT_U16 ? 0x0101 : 0x01010101));
+      }
+    }
+    crec_fill_emit(J, ml, mlp, trdst, trfill);
+  } else {
+fallback:
+    /* Call memset. Always needs a barrier to disable alias analysis. */
+    lj_ir_call(J, IRCALL_memset, trdst, trfill, trlen);  /* Note: arg order! */
+  }
+  emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+}
+
+/* -- Convert C type to C type -------------------------------------------- */
+
+/*
+** This code mirrors the code in lj_cconv.c. It performs the same steps
+** for the trace recorder that lj_cconv.c does for the interpreter.
+**
+** One major difference is that we can get away with much fewer checks
+** here. E.g. checks for casts, constness or correct types can often be
+** omitted, even if they might fail. The interpreter subsequently throws
+** an error, which aborts the trace.
+**
+** All operations are specialized to their C types, so the on-trace
+** outcome must be the same as the outcome in the interpreter. If the
+** interpreter doesn't throw an error, then the trace is correct, too.
+** Care must be taken not to generate invalid (temporary) IR or to
+** trigger asserts.
+*/
+
+/* Determine whether a passed number or cdata number is non-zero. */
+static int crec_isnonzero(CType *s, void *p)
+{
+  if (p == (void *)0)
+    return 0;
+  if (p == (void *)1)
+    return 1;
+  if ((s->info & CTF_FP)) {
+    if (s->size == sizeof(float))
+      return (*(float *)p != 0);
+    else
+      return (*(double *)p != 0);
+  } else {
+    if (s->size == 1)
+      return (*(uint8_t *)p != 0);
+    else if (s->size == 2)
+      return (*(uint16_t *)p != 0);
+    else if (s->size == 4)
+      return (*(uint32_t *)p != 0);
+    else
+      return (*(uint64_t *)p != 0);
+  }
+}
+
+static TRef crec_ct_ct(jit_State *J, CType *d, CType *s, TRef dp, TRef sp,
+		       void *svisnz)
+{
+  IRType dt = crec_ct2irt(ctype_ctsG(J2G(J)), d);
+  IRType st = crec_ct2irt(ctype_ctsG(J2G(J)), s);
+  CTSize dsize = d->size, ssize = s->size;
+  CTInfo dinfo = d->info, sinfo = s->info;
+
+  if (ctype_type(dinfo) > CT_MAYCONVERT || ctype_type(sinfo) > CT_MAYCONVERT)
+    goto err_conv;
+
+  /*
+  ** Note: Unlike lj_cconv_ct_ct(), sp holds the _value_ of pointers and
+  ** numbers up to 8 bytes. Otherwise sp holds a pointer.
+  */
+
+  switch (cconv_idx2(dinfo, sinfo)) {
+  /* Destination is a bool. */
+  case CCX(B, B):
+    goto xstore;  /* Source operand is already normalized. */
+  case CCX(B, I):
+  case CCX(B, F):
+    if (st != IRT_CDATA) {
+      /* Specialize to the result of a comparison against 0. */
+      TRef zero = (st == IRT_NUM  || st == IRT_FLOAT) ? lj_ir_knum(J, 0) :
+		  (st == IRT_I64 || st == IRT_U64) ? lj_ir_kint64(J, 0) :
+		  lj_ir_kint(J, 0);
+      int isnz = crec_isnonzero(s, svisnz);
+      emitir(IRTG(isnz ? IR_NE : IR_EQ, st), sp, zero);
+      sp = lj_ir_kint(J, isnz);
+      goto xstore;
+    }
+    goto err_nyi;
+
+  /* Destination is an integer. */
+  case CCX(I, B):
+  case CCX(I, I):
+  conv_I_I:
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    /* Extend 32 to 64 bit integer. */
+    if (dsize == 8 && ssize < 8 && !(LJ_64 && (sinfo & CTF_UNSIGNED)))
+      sp = emitconv(sp, dt, ssize < 4 ? IRT_INT : st,
+		    (sinfo & CTF_UNSIGNED) ? 0 : IRCONV_SEXT);
+    else if (dsize < 8 && ssize == 8)  /* Truncate from 64 bit integer. */
+      sp = emitconv(sp, dsize < 4 ? IRT_INT : dt, st, 0);
+    else if (st == IRT_INT)
+      sp = lj_opt_narrow_toint(J, sp);
+  xstore:
+    if (dt == IRT_I64 || dt == IRT_U64) lj_needsplit(J);
+    if (dp == 0) return sp;
+    emitir(IRT(IR_XSTORE, dt), dp, sp);
+    break;
+  case CCX(I, C):
+    sp = emitir(IRT(IR_XLOAD, st), sp, 0);  /* Load re. */
+    /* fallthrough */
+  case CCX(I, F):
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    sp = emitconv(sp, dsize < 4 ? IRT_INT : dt, st, IRCONV_TRUNC|IRCONV_ANY);
+    goto xstore;
+  case CCX(I, P):
+  case CCX(I, A):
+    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    ssize = CTSIZE_PTR;
+    st = IRT_UINTP;
+    if (((dsize ^ ssize) & 8) == 0) {  /* Must insert no-op type conversion. */
+      sp = emitconv(sp, dsize < 4 ? IRT_INT : dt, IRT_PTR, 0);
+      goto xstore;
+    }
+    goto conv_I_I;
+
+  /* Destination is a floating-point number. */
+  case CCX(F, B):
+  case CCX(F, I):
+  conv_F_I:
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    sp = emitconv(sp, dt, ssize < 4 ? IRT_INT : st, 0);
+    goto xstore;
+  case CCX(F, C):
+    sp = emitir(IRT(IR_XLOAD, st), sp, 0);  /* Load re. */
+    /* fallthrough */
+  case CCX(F, F):
+  conv_F_F:
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    if (dt != st) sp = emitconv(sp, dt, st, 0);
+    goto xstore;
+
+  /* Destination is a complex number. */
+  case CCX(C, I):
+  case CCX(C, F):
+    {  /* Clear im. */
+      TRef ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, (dsize >> 1)));
+      emitir(IRT(IR_XSTORE, dt), ptr, lj_ir_knum(J, 0));
+    }
+    /* Convert to re. */
+    if ((sinfo & CTF_FP)) goto conv_F_F; else goto conv_F_I;
+
+  case CCX(C, C):
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    {
+      TRef re, im, ptr;
+      re = emitir(IRT(IR_XLOAD, st), sp, 0);
+      ptr = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, (ssize >> 1)));
+      im = emitir(IRT(IR_XLOAD, st), ptr, 0);
+      if (dt != st) {
+	re = emitconv(re, dt, st, 0);
+	im = emitconv(im, dt, st, 0);
+      }
+      emitir(IRT(IR_XSTORE, dt), dp, re);
+      ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, (dsize >> 1)));
+      emitir(IRT(IR_XSTORE, dt), ptr, im);
+    }
+    break;
+
+  /* Destination is a vector. */
+  case CCX(V, I):
+  case CCX(V, F):
+  case CCX(V, C):
+  case CCX(V, V):
+    goto err_nyi;
+
+  /* Destination is a pointer. */
+  case CCX(P, P):
+  case CCX(P, A):
+  case CCX(P, S):
+    /* There are only 32 bit pointers/addresses on 32 bit machines.
+    ** Also ok on x64, since all 32 bit ops clear the upper part of the reg.
+    */
+    goto xstore;
+  case CCX(P, I):
+    if (st == IRT_CDATA) goto err_nyi;
+    if (!LJ_64 && ssize == 8)  /* Truncate from 64 bit integer. */
+      sp = emitconv(sp, IRT_U32, st, 0);
+    goto xstore;
+  case CCX(P, F):
+    if (st == IRT_CDATA) goto err_nyi;
+    /* The signed conversion is cheaper. x64 really has 47 bit pointers. */
+    sp = emitconv(sp, (LJ_64 && dsize == 8) ? IRT_I64 : IRT_U32,
+		  st, IRCONV_TRUNC|IRCONV_ANY);
+    goto xstore;
+
+  /* Destination is an array. */
+  case CCX(A, A):
+  /* Destination is a struct/union. */
+  case CCX(S, S):
+    if (dp == 0) goto err_conv;
+    crec_copy(J, dp, sp, lj_ir_kint(J, dsize), d);
+    break;
+
+  default:
+  err_conv:
+  err_nyi:
+    lj_trace_err(J, LJ_TRERR_NYICONV);
+    break;
+  }
+  return 0;
+}
+
+/* -- Convert C type to TValue (load) ------------------------------------- */
+
+static TRef crec_tv_ct(jit_State *J, CType *s, CTypeID sid, TRef sp)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  IRType t = crec_ct2irt(cts, s);
+  CTInfo sinfo = s->info;
+  if (ctype_isnum(sinfo)) {
+    TRef tr;
+    if (t == IRT_CDATA)
+      goto err_nyi;  /* NYI: copyval of >64 bit integers. */
+    tr = emitir(IRT(IR_XLOAD, t), sp, 0);
+    if (t == IRT_FLOAT || t == IRT_U32) {  /* Keep uint32_t/float as numbers. */
+      return emitconv(tr, IRT_NUM, t, 0);
+    } else if (t == IRT_I64 || t == IRT_U64) {  /* Box 64 bit integer. */
+      sp = tr;
+      lj_needsplit(J);
+    } else if ((sinfo & CTF_BOOL)) {
+      /* Assume not equal to zero. Fixup and emit pending guard later. */
+      lj_ir_set(J, IRTGI(IR_NE), tr, lj_ir_kint(J, 0));
+      J->postproc = LJ_POST_FIXGUARD;
+      return TREF_TRUE;
+    } else {
+      return tr;
+    }
+  } else if (ctype_isptr(sinfo) || ctype_isenum(sinfo)) {
+    sp = emitir(IRT(IR_XLOAD, t), sp, 0);  /* Box pointers and enums. */
+  } else if (ctype_isrefarray(sinfo) || ctype_isstruct(sinfo)) {
+    cts->L = J->L;
+    sid = lj_ctype_intern(cts, CTINFO_REF(sid), CTSIZE_PTR);  /* Create ref. */
+  } else if (ctype_iscomplex(sinfo)) {  /* Unbox/box complex. */
+    ptrdiff_t esz = (ptrdiff_t)(s->size >> 1);
+    TRef ptr, tr1, tr2, dp;
+    dp = emitir(IRTG(IR_CNEW, IRT_CDATA), lj_ir_kint(J, sid), TREF_NIL);
+    tr1 = emitir(IRT(IR_XLOAD, t), sp, 0);
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, esz));
+    tr2 = emitir(IRT(IR_XLOAD, t), ptr, 0);
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, sizeof(GCcdata)));
+    emitir(IRT(IR_XSTORE, t), ptr, tr1);
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, sizeof(GCcdata)+esz));
+    emitir(IRT(IR_XSTORE, t), ptr, tr2);
+    return dp;
+  } else {
+    /* NYI: copyval of vectors. */
+  err_nyi:
+    lj_trace_err(J, LJ_TRERR_NYICONV);
+  }
+  /* Box pointer, ref, enum or 64 bit integer. */
+  return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, sid), sp);
+}
+
+/* -- Convert TValue to C type (store) ------------------------------------ */
+
+static TRef crec_ct_tv(jit_State *J, CType *d, TRef dp, TRef sp, cTValue *sval)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTypeID sid = CTID_P_VOID;
+  void *svisnz = 0;
+  CType *s;
+  if (LJ_LIKELY(tref_isinteger(sp))) {
+    sid = CTID_INT32;
+    svisnz = (void *)(intptr_t)(tvisint(sval)?(intV(sval)!=0):!tviszero(sval));
+  } else if (tref_isnum(sp)) {
+    sid = CTID_DOUBLE;
+    svisnz = (void *)(intptr_t)(tvisint(sval)?(intV(sval)!=0):!tviszero(sval));
+  } else if (tref_isbool(sp)) {
+    sp = lj_ir_kint(J, tref_istrue(sp) ? 1 : 0);
+    sid = CTID_BOOL;
+  } else if (tref_isnil(sp)) {
+    sp = lj_ir_kptr(J, NULL);
+  } else if (tref_isudata(sp)) {
+    GCudata *ud = udataV(sval);
+    if (ud->udtype == UDTYPE_IO_FILE) {
+      TRef tr = emitir(IRT(IR_FLOAD, IRT_U8), sp, IRFL_UDATA_UDTYPE);
+      emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, UDTYPE_IO_FILE));
+      sp = emitir(IRT(IR_FLOAD, IRT_PTR), sp, IRFL_UDATA_FILE);
+    } else {
+      sp = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, sizeof(GCudata)));
+    }
+  } else if (tref_isstr(sp)) {
+    if (ctype_isenum(d->info)) {  /* Match string against enum constant. */
+      GCstr *str = strV(sval);
+      CTSize ofs;
+      CType *cct = lj_ctype_getfield(cts, d, str, &ofs);
+      /* Specialize to the name of the enum constant. */
+      emitir(IRTG(IR_EQ, IRT_STR), sp, lj_ir_kstr(J, str));
+      if (cct && ctype_isconstval(cct->info)) {
+	lua_assert(ctype_child(cts, cct)->size == 4);
+	svisnz = (void *)(intptr_t)(ofs != 0);
+	sp = lj_ir_kint(J, (int32_t)ofs);
+	sid = ctype_cid(cct->info);
+      }  /* else: interpreter will throw. */
+    } else if (ctype_isrefarray(d->info)) {  /* Copy string to array. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);  /* NYI */
+    } else {  /* Otherwise pass the string data as a const char[]. */
+      /* Don't use STRREF. It folds with SNEW, which loses the trailing NUL. */
+      sp = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, sizeof(GCstr)));
+      sid = CTID_A_CCHAR;
+    }
+  } else {  /* NYI: tref_istab(sp), tref_islightud(sp). */
+    IRType t;
+    sid = argv2cdata(J, sp, sval)->ctypeid;
+    s = ctype_raw(cts, sid);
+    svisnz = cdataptr(cdataV(sval));
+    t = crec_ct2irt(cts, s);
+    if (ctype_isptr(s->info)) {
+      sp = emitir(IRT(IR_FLOAD, t), sp, IRFL_CDATA_PTR);
+      if (ctype_isref(s->info)) {
+	svisnz = *(void **)svisnz;
+	s = ctype_rawchild(cts, s);
+	if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+	t = crec_ct2irt(cts, s);
+      } else {
+	goto doconv;
+      }
+    } else if (t == IRT_I64 || t == IRT_U64) {
+      sp = emitir(IRT(IR_FLOAD, t), sp, IRFL_CDATA_INT64);
+      lj_needsplit(J);
+      goto doconv;
+    } else if (t == IRT_INT || t == IRT_U32) {
+      if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+      sp = emitir(IRT(IR_FLOAD, t), sp, IRFL_CDATA_INT);
+      goto doconv;
+    } else {
+      sp = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, sizeof(GCcdata)));
+    }
+    if (ctype_isnum(s->info) && t != IRT_CDATA)
+      sp = emitir(IRT(IR_XLOAD, t), sp, 0);  /* Load number value. */
+    goto doconv;
+  }
+  s = ctype_get(cts, sid);
+doconv:
+  if (ctype_isenum(d->info)) d = ctype_child(cts, d);
+  return crec_ct_ct(J, d, s, dp, sp, svisnz);
+}
+
+/* -- C data metamethods -------------------------------------------------- */
+
+/* This would be rather difficult in FOLD, so do it here:
+** (base+k)+(idx*sz)+ofs ==> (base+idx*sz)+(ofs+k)
+** (base+(idx+k)*sz)+ofs ==> (base+idx*sz)+(ofs+k*sz)
+*/
+static TRef crec_reassoc_ofs(jit_State *J, TRef tr, ptrdiff_t *ofsp, MSize sz)
+{
+  IRIns *ir = IR(tref_ref(tr));
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && irref_isk(ir->op2) &&
+      (ir->o == IR_ADD || ir->o == IR_ADDOV || ir->o == IR_SUBOV)) {
+    IRIns *irk = IR(ir->op2);
+    ptrdiff_t k;
+    if (LJ_64 && irk->o == IR_KINT64)
+      k = (ptrdiff_t)ir_kint64(irk)->u64 * sz;
+    else
+      k = (ptrdiff_t)irk->i * sz;
+    if (ir->o == IR_SUBOV) *ofsp -= k; else *ofsp += k;
+    tr = ir->op1;  /* Not a TRef, but the caller doesn't care. */
+  }
+  return tr;
+}
+
+/* Record ctype __index/__newindex metamethods. */
+static void crec_index_meta(jit_State *J, CTState *cts, CType *ct,
+			    RecordFFData *rd)
+{
+  CTypeID id = ctype_typeid(cts, ct);
+  cTValue *tv = lj_ctype_meta(cts, id, rd->data ? MM_newindex : MM_index);
+  if (!tv)
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  if (tvisfunc(tv)) {
+    J->base[-1] = lj_ir_kfunc(J, funcV(tv)) | TREF_FRAME;
+    rd->nres = -1;  /* Pending tailcall. */
+  } else if (rd->data == 0 && tvistab(tv) && tref_isstr(J->base[1])) {
+    /* Specialize to result of __index lookup. */
+    cTValue *o = lj_tab_get(J->L, tabV(tv), &rd->argv[1]);
+    J->base[0] = lj_record_constify(J, o);
+    if (!J->base[0])
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    /* Always specialize to the key. */
+    emitir(IRTG(IR_EQ, IRT_STR), J->base[1], lj_ir_kstr(J, strV(&rd->argv[1])));
+  } else {
+    /* NYI: resolving of non-function metamethods. */
+    /* NYI: non-string keys for __index table. */
+    /* NYI: stores to __newindex table. */
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+}
+
+void LJ_FASTCALL recff_cdata_index(jit_State *J, RecordFFData *rd)
+{
+  TRef idx, ptr = J->base[0];
+  ptrdiff_t ofs = sizeof(GCcdata);
+  GCcdata *cd = argv2cdata(J, ptr, &rd->argv[0]);
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  CTypeID sid = 0;
+
+  /* Resolve pointer or reference for cdata object. */
+  if (ctype_isptr(ct->info)) {
+    IRType t = (LJ_64 && ct->size == 8) ? IRT_P64 : IRT_P32;
+    if (ctype_isref(ct->info)) ct = ctype_rawchild(cts, ct);
+    ptr = emitir(IRT(IR_FLOAD, t), ptr, IRFL_CDATA_PTR);
+    ofs = 0;
+    ptr = crec_reassoc_ofs(J, ptr, &ofs, 1);
+  }
+
+again:
+  idx = J->base[1];
+  if (tref_isnumber(idx)) {
+    idx = lj_opt_narrow_cindex(J, idx);
+    if (ctype_ispointer(ct->info)) {
+      CTSize sz;
+  integer_key:
+      if ((ct->info & CTF_COMPLEX))
+	idx = emitir(IRT(IR_BAND, IRT_INTP), idx, lj_ir_kintp(J, 1));
+      sz = lj_ctype_size(cts, (sid = ctype_cid(ct->info)));
+      idx = crec_reassoc_ofs(J, idx, &ofs, sz);
+#if LJ_TARGET_ARM || LJ_TARGET_PPC
+      /* Hoist base add to allow fusion of index/shift into operands. */
+      if (LJ_LIKELY(J->flags & JIT_F_OPT_LOOP) && ofs
+#if LJ_TARGET_ARM
+	  && (sz == 1 || sz == 4)
+#endif
+	  ) {
+	ptr = emitir(IRT(IR_ADD, IRT_PTR), ptr, lj_ir_kintp(J, ofs));
+	ofs = 0;
+      }
+#endif
+      idx = emitir(IRT(IR_MUL, IRT_INTP), idx, lj_ir_kintp(J, sz));
+      ptr = emitir(IRT(IR_ADD, IRT_PTR), idx, ptr);
+    }
+  } else if (tref_iscdata(idx)) {
+    GCcdata *cdk = cdataV(&rd->argv[1]);
+    CType *ctk = ctype_raw(cts, cdk->ctypeid);
+    IRType t = crec_ct2irt(cts, ctk);
+    if (ctype_ispointer(ct->info) && t >= IRT_I8 && t <= IRT_U64) {
+      if (ctk->size == 8) {
+	idx = emitir(IRT(IR_FLOAD, t), idx, IRFL_CDATA_INT64);
+      } else if (ctk->size == 4) {
+	idx = emitir(IRT(IR_FLOAD, t), idx, IRFL_CDATA_INT);
+      } else {
+	idx = emitir(IRT(IR_ADD, IRT_PTR), idx,
+		     lj_ir_kintp(J, sizeof(GCcdata)));
+	idx = emitir(IRT(IR_XLOAD, t), idx, 0);
+      }
+      if (LJ_64 && ctk->size < sizeof(intptr_t) && !(ctk->info & CTF_UNSIGNED))
+	idx = emitconv(idx, IRT_INTP, IRT_INT, IRCONV_SEXT);
+      if (!LJ_64 && ctk->size > sizeof(intptr_t)) {
+	idx = emitconv(idx, IRT_INTP, t, 0);
+	lj_needsplit(J);
+      }
+      goto integer_key;
+    }
+  } else if (tref_isstr(idx)) {
+    GCstr *name = strV(&rd->argv[1]);
+    if (cd->ctypeid == CTID_CTYPEID)
+      ct = ctype_raw(cts, crec_constructor(J, cd, ptr));
+    if (ctype_isstruct(ct->info)) {
+      CTSize fofs;
+      CType *fct;
+      fct = lj_ctype_getfield(cts, ct, name, &fofs);
+      if (fct) {
+	/* Always specialize to the field name. */
+	emitir(IRTG(IR_EQ, IRT_STR), idx, lj_ir_kstr(J, name));
+	if (ctype_isconstval(fct->info)) {
+	  if (fct->size >= 0x80000000u &&
+	      (ctype_child(cts, fct)->info & CTF_UNSIGNED)) {
+	    J->base[0] = lj_ir_knum(J, (lua_Number)(uint32_t)fct->size);
+	    return;
+	  }
+	  J->base[0] = lj_ir_kint(J, (int32_t)fct->size);
+	  return;  /* Interpreter will throw for newindex. */
+	} else if (ctype_isbitfield(fct->info)) {
+	  lj_trace_err(J, LJ_TRERR_NYICONV);
+	} else {
+	  lua_assert(ctype_isfield(fct->info));
+	  sid = ctype_cid(fct->info);
+	}
+	ofs += (ptrdiff_t)fofs;
+      }
+    } else if (ctype_iscomplex(ct->info)) {
+      if (name->len == 2 &&
+	  ((strdata(name)[0] == 'r' && strdata(name)[1] == 'e') ||
+	   (strdata(name)[0] == 'i' && strdata(name)[1] == 'm'))) {
+	/* Always specialize to the field name. */
+	emitir(IRTG(IR_EQ, IRT_STR), idx, lj_ir_kstr(J, name));
+	if (strdata(name)[0] == 'i') ofs += (ct->size >> 1);
+	sid = ctype_cid(ct->info);
+      }
+    }
+  }
+  if (!sid) {
+    if (ctype_isptr(ct->info)) {  /* Automatically perform '->'. */
+      CType *cct = ctype_rawchild(cts, ct);
+      if (ctype_isstruct(cct->info)) {
+	ct = cct;
+	if (tref_isstr(idx)) goto again;
+      }
+    }
+    crec_index_meta(J, cts, ct, rd);
+    return;
+  }
+
+  if (ofs)
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), ptr, lj_ir_kintp(J, ofs));
+
+  /* Resolve reference for field. */
+  ct = ctype_get(cts, sid);
+  if (ctype_isref(ct->info))
+    ptr = emitir(IRT(IR_XLOAD, IRT_PTR), ptr, 0);
+
+  while (ctype_isattrib(ct->info))
+    ct = ctype_child(cts, ct);  /* Skip attributes. */
+
+  if (rd->data == 0) {  /* __index metamethod. */
+    J->base[0] = crec_tv_ct(J, ct, sid, ptr);
+  } else {  /* __newindex metamethod. */
+    rd->nres = 0;
+    J->needsnap = 1;
+    crec_ct_tv(J, ct, ptr, J->base[2], &rd->argv[2]);
+  }
+}
+
+/* Record setting a finalizer. */
+static void crec_finalizer(jit_State *J, TRef trcd, cTValue *fin)
+{
+  TRef trlo = lj_ir_call(J, IRCALL_lj_cdata_setfin, trcd);
+  TRef trhi = emitir(IRT(IR_ADD, IRT_P32), trlo, lj_ir_kint(J, 4));
+  if (LJ_BE) { TRef tmp = trlo; trlo = trhi; trhi = tmp; }
+  if (tvisfunc(fin)) {
+    emitir(IRT(IR_XSTORE, IRT_P32), trlo, lj_ir_kfunc(J, funcV(fin)));
+    emitir(IRTI(IR_XSTORE), trhi, lj_ir_kint(J, LJ_TFUNC));
+  } else if (tviscdata(fin)) {
+    emitir(IRT(IR_XSTORE, IRT_P32), trlo,
+	   lj_ir_kgc(J, obj2gco(cdataV(fin)), IRT_CDATA));
+    emitir(IRTI(IR_XSTORE), trhi, lj_ir_kint(J, LJ_TCDATA));
+  } else {
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  J->needsnap = 1;
+}
+
+/* Record cdata allocation. */
+static void crec_alloc(jit_State *J, RecordFFData *rd, CTypeID id)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  CType *d = ctype_raw(cts, id);
+  TRef trid;
+  if (!sz || sz > 128 || (info & CTF_VLA) || ctype_align(info) > CT_MEMALIGN)
+    lj_trace_err(J, LJ_TRERR_NYICONV);  /* NYI: large/special allocations. */
+  trid = lj_ir_kint(J, id);
+  /* Use special instruction to box pointer or 32/64 bit integer. */
+  if (ctype_isptr(info) || (ctype_isinteger(info) && (sz == 4 || sz == 8))) {
+    TRef sp = J->base[1] ? crec_ct_tv(J, d, 0, J->base[1], &rd->argv[1]) :
+	      ctype_isptr(info) ? lj_ir_kptr(J, NULL) :
+	      sz == 4 ? lj_ir_kint(J, 0) :
+	      (lj_needsplit(J), lj_ir_kint64(J, 0));
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA), trid, sp);
+  } else {
+    TRef trcd = emitir(IRTG(IR_CNEW, IRT_CDATA), trid, TREF_NIL);
+    cTValue *fin;
+    J->base[0] = trcd;
+    if (J->base[1] && !J->base[2] &&
+	!lj_cconv_multi_init(cts, d, &rd->argv[1])) {
+      goto single_init;
+    } else if (ctype_isarray(d->info)) {
+      CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
+      CTSize ofs, esize = dc->size;
+      TRef sp = 0;
+      TValue tv;
+      TValue *sval = &tv;
+      MSize i;
+      tv.u64 = 0;
+      if (!(ctype_isnum(dc->info) || ctype_isptr(dc->info)))
+	lj_trace_err(J, LJ_TRERR_NYICONV);  /* NYI: init array of aggregates. */
+      for (i = 1, ofs = 0; ofs < sz; ofs += esize) {
+	TRef dp = emitir(IRT(IR_ADD, IRT_PTR), trcd,
+			 lj_ir_kintp(J, ofs + sizeof(GCcdata)));
+	if (J->base[i]) {
+	  sp = J->base[i];
+	  sval = &rd->argv[i];
+	  i++;
+	} else if (i != 2) {
+	  sp = ctype_isnum(dc->info) ? lj_ir_kint(J, 0) : TREF_NIL;
+	}
+	crec_ct_tv(J, dc, dp, sp, sval);
+      }
+    } else if (ctype_isstruct(d->info)) {
+      CTypeID fid = d->sib;
+      MSize i = 1;
+      while (fid) {
+	CType *df = ctype_get(cts, fid);
+	fid = df->sib;
+	if (ctype_isfield(df->info)) {
+	  CType *dc;
+	  TRef sp, dp;
+	  TValue tv;
+	  TValue *sval = &tv;
+	  setintV(&tv, 0);
+	  if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+	  dc = ctype_rawchild(cts, df);  /* Field type. */
+	  if (!(ctype_isnum(dc->info) || ctype_isptr(dc->info) ||
+		ctype_isenum(dc->info)))
+	    lj_trace_err(J, LJ_TRERR_NYICONV);  /* NYI: init aggregates. */
+	  if (J->base[i]) {
+	    sp = J->base[i];
+	    sval = &rd->argv[i];
+	    i++;
+	  } else {
+	    sp = ctype_isptr(dc->info) ? TREF_NIL : lj_ir_kint(J, 0);
+	  }
+	  dp = emitir(IRT(IR_ADD, IRT_PTR), trcd,
+		      lj_ir_kintp(J, df->size + sizeof(GCcdata)));
+	  crec_ct_tv(J, dc, dp, sp, sval);
+	} else if (!ctype_isconstval(df->info)) {
+	  /* NYI: init bitfields and sub-structures. */
+	  lj_trace_err(J, LJ_TRERR_NYICONV);
+	}
+      }
+    } else {
+      TRef dp;
+    single_init:
+      dp = emitir(IRT(IR_ADD, IRT_PTR), trcd, lj_ir_kintp(J, sizeof(GCcdata)));
+      if (J->base[1]) {
+	crec_ct_tv(J, d, dp, J->base[1], &rd->argv[1]);
+      } else {
+	TValue tv;
+	tv.u64 = 0;
+	crec_ct_tv(J, d, dp, lj_ir_kint(J, 0), &tv);
+      }
+    }
+    /* Handle __gc metamethod. */
+    fin = lj_ctype_meta(cts, id, MM_gc);
+    if (fin)
+      crec_finalizer(J, trcd, fin);
+  }
+}
+
+/* Record argument conversions. */
+static TRef crec_call_args(jit_State *J, RecordFFData *rd,
+			   CTState *cts, CType *ct)
+{
+  TRef args[CCI_NARGS_MAX];
+  CTypeID fid;
+  MSize i, n;
+  TRef tr, *base;
+  cTValue *o;
+#if LJ_TARGET_X86
+#if LJ_ABI_WIN
+  TRef *arg0 = NULL, *arg1 = NULL;
+#endif
+  int ngpr = 0;
+  if (ctype_cconv(ct->info) == CTCC_THISCALL)
+    ngpr = 1;
+  else if (ctype_cconv(ct->info) == CTCC_FASTCALL)
+    ngpr = 2;
+#endif
+
+  /* Skip initial attributes. */
+  fid = ct->sib;
+  while (fid) {
+    CType *ctf = ctype_get(cts, fid);
+    if (!ctype_isattrib(ctf->info)) break;
+    fid = ctf->sib;
+  }
+  args[0] = TREF_NIL;
+  for (n = 0, base = J->base+1, o = rd->argv+1; *base; n++, base++, o++) {
+    CTypeID did;
+    CType *d;
+
+    if (n >= CCI_NARGS_MAX)
+      lj_trace_err(J, LJ_TRERR_NYICALL);
+
+    if (fid) {  /* Get argument type from field. */
+      CType *ctf = ctype_get(cts, fid);
+      fid = ctf->sib;
+      lua_assert(ctype_isfield(ctf->info));
+      did = ctype_cid(ctf->info);
+    } else {
+      if (!(ct->info & CTF_VARARG))
+	lj_trace_err(J, LJ_TRERR_NYICALL);  /* Too many arguments. */
+      did = lj_ccall_ctid_vararg(cts, o);  /* Infer vararg type. */
+    }
+    d = ctype_raw(cts, did);
+    if (!(ctype_isnum(d->info) || ctype_isptr(d->info) ||
+	  ctype_isenum(d->info)))
+      lj_trace_err(J, LJ_TRERR_NYICALL);
+    tr = crec_ct_tv(J, d, 0, *base, o);
+    if (ctype_isinteger_or_bool(d->info)) {
+      if (d->size < 4) {
+	if ((d->info & CTF_UNSIGNED))
+	  tr = emitconv(tr, IRT_INT, d->size==1 ? IRT_U8 : IRT_U16, 0);
+	else
+	  tr = emitconv(tr, IRT_INT, d->size==1 ? IRT_I8 : IRT_I16,IRCONV_SEXT);
+      }
+    } else if (LJ_SOFTFP && ctype_isfp(d->info) && d->size > 4) {
+      lj_needsplit(J);
+    }
+#if LJ_TARGET_X86
+    /* 64 bit args must not end up in registers for fastcall/thiscall. */
+#if LJ_ABI_WIN
+    if (!ctype_isfp(d->info)) {
+      /* Sigh, the Windows/x86 ABI allows reordering across 64 bit args. */
+      if (tref_typerange(tr, IRT_I64, IRT_U64)) {
+	if (ngpr) {
+	  arg0 = &args[n]; args[n++] = TREF_NIL; ngpr--;
+	  if (ngpr) {
+	    arg1 = &args[n]; args[n++] = TREF_NIL; ngpr--;
+	  }
+	}
+      } else {
+	if (arg0) { *arg0 = tr; arg0 = NULL; n--; continue; }
+	if (arg1) { *arg1 = tr; arg1 = NULL; n--; continue; }
+	if (ngpr) ngpr--;
+      }
+    }
+#else
+    if (!ctype_isfp(d->info) && ngpr) {
+      if (tref_typerange(tr, IRT_I64, IRT_U64)) {
+	/* No reordering for other x86 ABIs. Simply add alignment args. */
+	do { args[n++] = TREF_NIL; } while (--ngpr);
+      } else {
+	ngpr--;
+      }
+    }
+#endif
+#endif
+    args[n] = tr;
+  }
+  tr = args[0];
+  for (i = 1; i < n; i++)
+    tr = emitir(IRT(IR_CARG, IRT_NIL), tr, args[i]);
+  return tr;
+}
+
+/* Create a snapshot for the caller, simulating a 'false' return value. */
+static void crec_snap_caller(jit_State *J)
+{
+  lua_State *L = J->L;
+  TValue *base = L->base, *top = L->top;
+  const BCIns *pc = J->pc;
+  TRef ftr = J->base[-1];
+  ptrdiff_t delta;
+  if (!frame_islua(base-1) || J->framedepth <= 0)
+    lj_trace_err(J, LJ_TRERR_NYICALL);
+  J->pc = frame_pc(base-1); delta = 1+bc_a(J->pc[-1]);
+  L->top = base; L->base = base - delta;
+  J->base[-1] = TREF_FALSE;
+  J->base -= delta; J->baseslot -= (BCReg)delta;
+  J->maxslot = (BCReg)delta; J->framedepth--;
+  lj_snap_add(J);
+  L->base = base; L->top = top;
+  J->framedepth++; J->maxslot = 1;
+  J->base += delta; J->baseslot += (BCReg)delta;
+  J->base[-1] = ftr; J->pc = pc;
+}
+
+/* Record function call. */
+static int crec_call(jit_State *J, RecordFFData *rd, GCcdata *cd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  IRType tp = IRT_PTR;
+  if (ctype_isptr(ct->info)) {
+    tp = (LJ_64 && ct->size == 8) ? IRT_P64 : IRT_P32;
+    ct = ctype_rawchild(cts, ct);
+  }
+  if (ctype_isfunc(ct->info)) {
+    TRef func = emitir(IRT(IR_FLOAD, tp), J->base[0], IRFL_CDATA_PTR);
+    CType *ctr = ctype_rawchild(cts, ct);
+    IRType t = crec_ct2irt(cts, ctr);
+    TRef tr;
+    TValue tv;
+    /* Check for blacklisted C functions that might call a callback. */
+    setlightudV(&tv,
+		cdata_getptr(cdataptr(cd), (LJ_64 && tp == IRT_P64) ? 8 : 4));
+    if (tvistrue(lj_tab_get(J->L, cts->miscmap, &tv)))
+      lj_trace_err(J, LJ_TRERR_BLACKL);
+    if (ctype_isvoid(ctr->info)) {
+      t = IRT_NIL;
+      rd->nres = 0;
+    } else if (!(ctype_isnum(ctr->info) || ctype_isptr(ctr->info) ||
+		 ctype_isenum(ctr->info)) || t == IRT_CDATA) {
+      lj_trace_err(J, LJ_TRERR_NYICALL);
+    }
+    if ((ct->info & CTF_VARARG)
+#if LJ_TARGET_X86
+	|| ctype_cconv(ct->info) != CTCC_CDECL
+#endif
+	)
+      func = emitir(IRT(IR_CARG, IRT_NIL), func,
+		    lj_ir_kint(J, ctype_typeid(cts, ct)));
+    tr = emitir(IRT(IR_CALLXS, t), crec_call_args(J, rd, cts, ct), func);
+    if (ctype_isbool(ctr->info)) {
+      if (frame_islua(J->L->base-1) && bc_b(frame_pc(J->L->base-1)[-1]) == 1) {
+	/* Don't check result if ignored. */
+	tr = TREF_NIL;
+      } else {
+	crec_snap_caller(J);
+#if LJ_TARGET_X86ORX64
+	/* Note: only the x86/x64 backend supports U8 and only for EQ(tr, 0). */
+	lj_ir_set(J, IRTG(IR_NE, IRT_U8), tr, lj_ir_kint(J, 0));
+#else
+	lj_ir_set(J, IRTGI(IR_NE), tr, lj_ir_kint(J, 0));
+#endif
+	J->postproc = LJ_POST_FIXGUARDSNAP;
+	tr = TREF_TRUE;
+      }
+    } else if (t == IRT_PTR || (LJ_64 && t == IRT_P32) ||
+	       t == IRT_I64 || t == IRT_U64 || ctype_isenum(ctr->info)) {
+      TRef trid = lj_ir_kint(J, ctype_cid(ct->info));
+      tr = emitir(IRTG(IR_CNEWI, IRT_CDATA), trid, tr);
+      if (t == IRT_I64 || t == IRT_U64) lj_needsplit(J);
+    } else if (t == IRT_FLOAT || t == IRT_U32) {
+      tr = emitconv(tr, IRT_NUM, t, 0);
+    } else if (t == IRT_I8 || t == IRT_I16) {
+      tr = emitconv(tr, IRT_INT, t, IRCONV_SEXT);
+    } else if (t == IRT_U8 || t == IRT_U16) {
+      tr = emitconv(tr, IRT_INT, t, 0);
+    }
+    J->base[0] = tr;
+    J->needsnap = 1;
+    return 1;
+  }
+  return 0;
+}
+
+void LJ_FASTCALL recff_cdata_call(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  GCcdata *cd = argv2cdata(J, J->base[0], &rd->argv[0]);
+  CTypeID id = cd->ctypeid;
+  CType *ct;
+  cTValue *tv;
+  MMS mm = MM_call;
+  if (id == CTID_CTYPEID) {
+    id = crec_constructor(J, cd, J->base[0]);
+    mm = MM_new;
+  } else if (crec_call(J, rd, cd)) {
+    return;
+  }
+  /* Record ctype __call/__new metamethod. */
+  ct = ctype_raw(cts, id);
+  tv = lj_ctype_meta(cts, ctype_isptr(ct->info) ? ctype_cid(ct->info) : id, mm);
+  if (tv) {
+    if (tvisfunc(tv)) {
+      J->base[-1] = lj_ir_kfunc(J, funcV(tv)) | TREF_FRAME;
+      rd->nres = -1;  /* Pending tailcall. */
+      return;
+    }
+  } else if (mm == MM_new) {
+    crec_alloc(J, rd, id);
+    return;
+  }
+  /* No metamethod or NYI: non-function metamethods. */
+  lj_trace_err(J, LJ_TRERR_BADTYPE);
+}
+
+static TRef crec_arith_int64(jit_State *J, TRef *sp, CType **s, MMS mm)
+{
+  if (ctype_isnum(s[0]->info) && ctype_isnum(s[1]->info)) {
+    IRType dt;
+    CTypeID id;
+    TRef tr;
+    MSize i;
+    IROp op;
+    lj_needsplit(J);
+    if (((s[0]->info & CTF_UNSIGNED) && s[0]->size == 8) ||
+	((s[1]->info & CTF_UNSIGNED) && s[1]->size == 8)) {
+      dt = IRT_U64; id = CTID_UINT64;
+    } else {
+      dt = IRT_I64; id = CTID_INT64;
+      if (mm < MM_add &&
+	  !((s[0]->info | s[1]->info) & CTF_FP) &&
+	  s[0]->size == 4 && s[1]->size == 4) {  /* Try to narrow comparison. */
+	if (!((s[0]->info ^ s[1]->info) & CTF_UNSIGNED) ||
+	    (tref_isk(sp[1]) && IR(tref_ref(sp[1]))->i >= 0)) {
+	  dt = (s[0]->info & CTF_UNSIGNED) ? IRT_U32 : IRT_INT;
+	  goto comp;
+	} else if (tref_isk(sp[0]) && IR(tref_ref(sp[0]))->i >= 0) {
+	  dt = (s[1]->info & CTF_UNSIGNED) ? IRT_U32 : IRT_INT;
+	  goto comp;
+	}
+      }
+    }
+    for (i = 0; i < 2; i++) {
+      IRType st = tref_type(sp[i]);
+      if (st == IRT_NUM || st == IRT_FLOAT)
+	sp[i] = emitconv(sp[i], dt, st, IRCONV_TRUNC|IRCONV_ANY);
+      else if (!(st == IRT_I64 || st == IRT_U64))
+	sp[i] = emitconv(sp[i], dt, IRT_INT,
+			 (s[i]->info & CTF_UNSIGNED) ? 0 : IRCONV_SEXT);
+    }
+    if (mm < MM_add) {
+    comp:
+      /* Assume true comparison. Fixup and emit pending guard later. */
+      if (mm == MM_eq) {
+	op = IR_EQ;
+      } else {
+	op = mm == MM_lt ? IR_LT : IR_LE;
+	if (dt == IRT_U32 || dt == IRT_U64)
+	  op += (IR_ULT-IR_LT);
+      }
+      lj_ir_set(J, IRTG(op, dt), sp[0], sp[1]);
+      J->postproc = LJ_POST_FIXGUARD;
+      return TREF_TRUE;
+    } else {
+      tr = emitir(IRT(mm+(int)IR_ADD-(int)MM_add, dt), sp[0], sp[1]);
+    }
+    return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+  }
+  return 0;
+}
+
+static TRef crec_arith_ptr(jit_State *J, TRef *sp, CType **s, MMS mm)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *ctp = s[0];
+  if (ctype_isptr(ctp->info) || ctype_isrefarray(ctp->info)) {
+    if ((mm == MM_sub || mm == MM_eq || mm == MM_lt || mm == MM_le) &&
+	(ctype_isptr(s[1]->info) || ctype_isrefarray(s[1]->info))) {
+      if (mm == MM_sub) {  /* Pointer difference. */
+	TRef tr;
+	CTSize sz = lj_ctype_size(cts, ctype_cid(ctp->info));
+	if (sz == 0 || (sz & (sz-1)) != 0)
+	  return 0;  /* NYI: integer division. */
+	tr = emitir(IRT(IR_SUB, IRT_INTP), sp[0], sp[1]);
+	tr = emitir(IRT(IR_BSAR, IRT_INTP), tr, lj_ir_kint(J, lj_fls(sz)));
+#if LJ_64
+	tr = emitconv(tr, IRT_NUM, IRT_INTP, 0);
+#endif
+	return tr;
+      } else {  /* Pointer comparison (unsigned). */
+	/* Assume true comparison. Fixup and emit pending guard later. */
+	IROp op = mm == MM_eq ? IR_EQ : mm == MM_lt ? IR_ULT : IR_ULE;
+	lj_ir_set(J, IRTG(op, IRT_PTR), sp[0], sp[1]);
+	J->postproc = LJ_POST_FIXGUARD;
+	return TREF_TRUE;
+      }
+    }
+    if (!((mm == MM_add || mm == MM_sub) && ctype_isnum(s[1]->info)))
+      return 0;
+  } else if (mm == MM_add && ctype_isnum(ctp->info) &&
+	     (ctype_isptr(s[1]->info) || ctype_isrefarray(s[1]->info))) {
+    TRef tr = sp[0]; sp[0] = sp[1]; sp[1] = tr;  /* Swap pointer and index. */
+    ctp = s[1];
+  } else {
+    return 0;
+  }
+  {
+    TRef tr = sp[1];
+    IRType t = tref_type(tr);
+    CTSize sz = lj_ctype_size(cts, ctype_cid(ctp->info));
+    CTypeID id;
+#if LJ_64
+    if (t == IRT_NUM || t == IRT_FLOAT)
+      tr = emitconv(tr, IRT_INTP, t, IRCONV_TRUNC|IRCONV_ANY);
+    else if (!(t == IRT_I64 || t == IRT_U64))
+      tr = emitconv(tr, IRT_INTP, IRT_INT,
+		    ((t - IRT_I8) & 1) ? 0 : IRCONV_SEXT);
+#else
+    if (!tref_typerange(sp[1], IRT_I8, IRT_U32)) {
+      tr = emitconv(tr, IRT_INTP, t,
+		    (t == IRT_NUM || t == IRT_FLOAT) ?
+		    IRCONV_TRUNC|IRCONV_ANY : 0);
+    }
+#endif
+    tr = emitir(IRT(IR_MUL, IRT_INTP), tr, lj_ir_kintp(J, sz));
+    tr = emitir(IRT(mm+(int)IR_ADD-(int)MM_add, IRT_PTR), sp[0], tr);
+    id = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(ctp->info)),
+			 CTSIZE_PTR);
+    return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+  }
+}
+
+/* Record ctype arithmetic metamethods. */
+static void crec_arith_meta(jit_State *J, CTState *cts, RecordFFData *rd)
+{
+  cTValue *tv = NULL;
+  if (J->base[0]) {
+    if (tviscdata(&rd->argv[0])) {
+      CTypeID id = argv2cdata(J, J->base[0], &rd->argv[0])->ctypeid;
+      CType *ct = ctype_raw(cts, id);
+      if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+      tv = lj_ctype_meta(cts, id, (MMS)rd->data);
+    }
+    if (!tv && J->base[1] && tviscdata(&rd->argv[1])) {
+      CTypeID id = argv2cdata(J, J->base[1], &rd->argv[1])->ctypeid;
+      CType *ct = ctype_raw(cts, id);
+      if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+      tv = lj_ctype_meta(cts, id, (MMS)rd->data);
+    }
+  }
+  if (tv) {
+    if (tvisfunc(tv)) {
+      J->base[-1] = lj_ir_kfunc(J, funcV(tv)) | TREF_FRAME;
+      rd->nres = -1;  /* Pending tailcall. */
+      return;
+    }  /* NYI: non-function metamethods. */
+  } else if ((MMS)rd->data == MM_eq) {
+    J->base[0] = TREF_FALSE;
+    return;
+  }
+  lj_trace_err(J, LJ_TRERR_BADTYPE);
+}
+
+void LJ_FASTCALL recff_cdata_arith(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef sp[2];
+  CType *s[2];
+  MSize i;
+  for (i = 0; i < 2; i++) {
+    TRef tr = J->base[i];
+    CType *ct = ctype_get(cts, CTID_DOUBLE);
+    if (!tr) {
+      goto trymeta;
+    } else if (tref_iscdata(tr)) {
+      CTypeID id = argv2cdata(J, tr, &rd->argv[i])->ctypeid;
+      IRType t;
+      ct = ctype_raw(cts, id);
+      t = crec_ct2irt(cts, ct);
+      if (ctype_isptr(ct->info)) {  /* Resolve pointer or reference. */
+	tr = emitir(IRT(IR_FLOAD, t), tr, IRFL_CDATA_PTR);
+	if (ctype_isref(ct->info)) {
+	  ct = ctype_rawchild(cts, ct);
+	  t = crec_ct2irt(cts, ct);
+	}
+      } else if (t == IRT_I64 || t == IRT_U64) {
+	tr = emitir(IRT(IR_FLOAD, t), tr, IRFL_CDATA_INT64);
+	lj_needsplit(J);
+	goto ok;
+      } else if (t == IRT_INT || t == IRT_U32) {
+	tr = emitir(IRT(IR_FLOAD, t), tr, IRFL_CDATA_INT);
+	if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+	goto ok;
+      } else if (ctype_isfunc(ct->info)) {
+	tr = emitir(IRT(IR_FLOAD, IRT_PTR), tr, IRFL_CDATA_PTR);
+	ct = ctype_get(cts,
+	  lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|id), CTSIZE_PTR));
+	goto ok;
+      } else {
+	tr = emitir(IRT(IR_ADD, IRT_PTR), tr, lj_ir_kintp(J, sizeof(GCcdata)));
+      }
+      if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+      if (ctype_isnum(ct->info)) {
+	if (t == IRT_CDATA) goto trymeta;
+	if (t == IRT_I64 || t == IRT_U64) lj_needsplit(J);
+	tr = emitir(IRT(IR_XLOAD, t), tr, 0);
+      } else if (!(ctype_isptr(ct->info) || ctype_isrefarray(ct->info))) {
+	goto trymeta;
+      }
+    } else if (tref_isnil(tr)) {
+      tr = lj_ir_kptr(J, NULL);
+      ct = ctype_get(cts, CTID_P_VOID);
+    } else if (tref_isinteger(tr)) {
+      ct = ctype_get(cts, CTID_INT32);
+    } else if (tref_isstr(tr)) {
+      TRef tr2 = J->base[1-i];
+      CTypeID id = argv2cdata(J, tr2, &rd->argv[1-i])->ctypeid;
+      ct = ctype_raw(cts, id);
+      if (ctype_isenum(ct->info)) {  /* Match string against enum constant. */
+	GCstr *str = strV(&rd->argv[i]);
+	CTSize ofs;
+	CType *cct = lj_ctype_getfield(cts, ct, str, &ofs);
+	if (cct && ctype_isconstval(cct->info)) {
+	  /* Specialize to the name of the enum constant. */
+	  emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, str));
+	  ct = ctype_child(cts, cct);
+	  tr = lj_ir_kint(J, (int32_t)ofs);
+	}  /* else: interpreter will throw. */
+      }  /* else: interpreter will throw. */
+    } else if (!tref_isnum(tr)) {
+      goto trymeta;
+    }
+  ok:
+    s[i] = ct;
+    sp[i] = tr;
+  }
+  {
+    TRef tr;
+    if ((tr = crec_arith_int64(J, sp, s, (MMS)rd->data)) ||
+	(tr = crec_arith_ptr(J, sp, s, (MMS)rd->data))) {
+      J->base[0] = tr;
+      /* Fixup cdata comparisons, too. Avoids some cdata escapes. */
+      if (J->postproc == LJ_POST_FIXGUARD && frame_iscont(J->L->base-1) &&
+	  !irt_isguard(J->guardemit)) {
+	const BCIns *pc = frame_contpc(J->L->base-1) - 1;
+	if (bc_op(*pc) <= BC_ISNEP) {
+	  setframe_pc(&J2G(J)->tmptv, pc);
+	  J2G(J)->tmptv.u32.lo = ((tref_istrue(tr) ^ bc_op(*pc)) & 1);
+	  J->postproc = LJ_POST_FIXCOMP;
+	}
+      }
+    } else {
+    trymeta:
+      crec_arith_meta(J, cts, rd);
+    }
+  }
+}
+
+/* -- C library namespace metamethods ------------------------------------- */
+
+void LJ_FASTCALL recff_clib_index(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  if (tref_isudata(J->base[0]) && tref_isstr(J->base[1]) &&
+      udataV(&rd->argv[0])->udtype == UDTYPE_FFI_CLIB) {
+    CLibrary *cl = (CLibrary *)uddata(udataV(&rd->argv[0]));
+    GCstr *name = strV(&rd->argv[1]);
+    CType *ct;
+    CTypeID id = lj_ctype_getname(cts, &ct, name, CLNS_INDEX);
+    cTValue *tv = lj_tab_getstr(cl->cache, name);
+    rd->nres = rd->data;
+    if (id && tv && !tvisnil(tv)) {
+      /* Specialize to the symbol name and make the result a constant. */
+      emitir(IRTG(IR_EQ, IRT_STR), J->base[1], lj_ir_kstr(J, name));
+      if (ctype_isconstval(ct->info)) {
+	if (ct->size >= 0x80000000u &&
+	    (ctype_child(cts, ct)->info & CTF_UNSIGNED))
+	  J->base[0] = lj_ir_knum(J, (lua_Number)(uint32_t)ct->size);
+	else
+	  J->base[0] = lj_ir_kint(J, (int32_t)ct->size);
+      } else if (ctype_isextern(ct->info)) {
+	CTypeID sid = ctype_cid(ct->info);
+	void *sp = *(void **)cdataptr(cdataV(tv));
+	TRef ptr;
+	ct = ctype_raw(cts, sid);
+	if (LJ_64 && !checkptr32(sp))
+	  ptr = lj_ir_kintp(J, (uintptr_t)sp);
+	else
+	  ptr = lj_ir_kptr(J, sp);
+	if (rd->data) {
+	  J->base[0] = crec_tv_ct(J, ct, sid, ptr);
+	} else {
+	  J->needsnap = 1;
+	  crec_ct_tv(J, ct, ptr, J->base[2], &rd->argv[2]);
+	}
+      } else {
+	J->base[0] = lj_ir_kgc(J, obj2gco(cdataV(tv)), IRT_CDATA);
+      }
+    } else {
+      lj_trace_err(J, LJ_TRERR_NOCACHE);
+    }
+  }  /* else: interpreter will throw. */
+}
+
+/* -- FFI library functions ----------------------------------------------- */
+
+static TRef crec_toint(jit_State *J, CTState *cts, TRef sp, TValue *sval)
+{
+  return crec_ct_tv(J, ctype_get(cts, CTID_INT32), 0, sp, sval);
+}
+
+void LJ_FASTCALL recff_ffi_new(jit_State *J, RecordFFData *rd)
+{
+  crec_alloc(J, rd, argv2ctype(J, J->base[0], &rd->argv[0]));
+}
+
+void LJ_FASTCALL recff_ffi_errno(jit_State *J, RecordFFData *rd)
+{
+  UNUSED(rd);
+  if (J->base[0])
+    lj_trace_err(J, LJ_TRERR_NYICALL);
+  J->base[0] = lj_ir_call(J, IRCALL_lj_vm_errno);
+}
+
+void LJ_FASTCALL recff_ffi_string(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef tr = J->base[0];
+  if (tr) {
+    TRef trlen = J->base[1];
+    if (!tref_isnil(trlen)) {
+      trlen = crec_toint(J, cts, trlen, &rd->argv[1]);
+      tr = crec_ct_tv(J, ctype_get(cts, CTID_P_CVOID), 0, tr, &rd->argv[0]);
+    } else {
+      tr = crec_ct_tv(J, ctype_get(cts, CTID_P_CCHAR), 0, tr, &rd->argv[0]);
+      trlen = lj_ir_call(J, IRCALL_strlen, tr);
+    }
+    J->base[0] = emitir(IRT(IR_XSNEW, IRT_STR), tr, trlen);
+  }  /* else: interpreter will throw. */
+}
+
+void LJ_FASTCALL recff_ffi_copy(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef trdst = J->base[0], trsrc = J->base[1], trlen = J->base[2];
+  if (trdst && trsrc && (trlen || tref_isstr(trsrc))) {
+    trdst = crec_ct_tv(J, ctype_get(cts, CTID_P_VOID), 0, trdst, &rd->argv[0]);
+    trsrc = crec_ct_tv(J, ctype_get(cts, CTID_P_CVOID), 0, trsrc, &rd->argv[1]);
+    if (trlen) {
+      trlen = crec_toint(J, cts, trlen, &rd->argv[2]);
+    } else {
+      trlen = emitir(IRTI(IR_FLOAD), J->base[1], IRFL_STR_LEN);
+      trlen = emitir(IRTI(IR_ADD), trlen, lj_ir_kint(J, 1));
+    }
+    rd->nres = 0;
+    crec_copy(J, trdst, trsrc, trlen, NULL);
+  }  /* else: interpreter will throw. */
+}
+
+void LJ_FASTCALL recff_ffi_fill(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef trdst = J->base[0], trlen = J->base[1], trfill = J->base[2];
+  if (trdst && trlen) {
+    CTSize step = 1;
+    if (tviscdata(&rd->argv[0])) {  /* Get alignment of original destination. */
+      CTSize sz;
+      CType *ct = ctype_raw(cts, cdataV(&rd->argv[0])->ctypeid);
+      if (ctype_isptr(ct->info))
+	ct = ctype_rawchild(cts, ct);
+      step = (1u<<ctype_align(lj_ctype_info(cts, ctype_typeid(cts, ct), &sz)));
+    }
+    trdst = crec_ct_tv(J, ctype_get(cts, CTID_P_VOID), 0, trdst, &rd->argv[0]);
+    trlen = crec_toint(J, cts, trlen, &rd->argv[1]);
+    if (trfill)
+      trfill = crec_toint(J, cts, trfill, &rd->argv[2]);
+    else
+      trfill = lj_ir_kint(J, 0);
+    rd->nres = 0;
+    crec_fill(J, trdst, trlen, trfill, step);
+  }  /* else: interpreter will throw. */
+}
+
+void LJ_FASTCALL recff_ffi_typeof(jit_State *J, RecordFFData *rd)
+{
+  if (tref_iscdata(J->base[0])) {
+    TRef trid = lj_ir_kint(J, argv2ctype(J, J->base[0], &rd->argv[0]));
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA),
+			lj_ir_kint(J, CTID_CTYPEID), trid);
+  } else {
+    setfuncV(J->L, &J->errinfo, J->fn);
+    lj_trace_err_info(J, LJ_TRERR_NYIFFU);
+  }
+}
+
+void LJ_FASTCALL recff_ffi_istype(jit_State *J, RecordFFData *rd)
+{
+  argv2ctype(J, J->base[0], &rd->argv[0]);
+  if (tref_iscdata(J->base[1])) {
+    argv2ctype(J, J->base[1], &rd->argv[1]);
+    J->postproc = LJ_POST_FIXBOOL;
+    J->base[0] = TREF_TRUE;
+  } else {
+    J->base[0] = TREF_FALSE;
+  }
+}
+
+void LJ_FASTCALL recff_ffi_abi(jit_State *J, RecordFFData *rd)
+{
+  if (tref_isstr(J->base[0])) {
+    /* Specialize to the ABI string to make the boolean result a constant. */
+    emitir(IRTG(IR_EQ, IRT_STR), J->base[0], lj_ir_kstr(J, strV(&rd->argv[0])));
+    J->postproc = LJ_POST_FIXBOOL;
+    J->base[0] = TREF_TRUE;
+  } else {
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+}
+
+/* Record ffi.sizeof(), ffi.alignof(), ffi.offsetof(). */
+void LJ_FASTCALL recff_ffi_xof(jit_State *J, RecordFFData *rd)
+{
+  CTypeID id = argv2ctype(J, J->base[0], &rd->argv[0]);
+  if (rd->data == FF_ffi_sizeof) {
+    CType *ct = lj_ctype_rawref(ctype_ctsG(J2G(J)), id);
+    if (ctype_isvltype(ct->info))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+  } else if (rd->data == FF_ffi_offsetof) {  /* Specialize to the field name. */
+    if (!tref_isstr(J->base[1]))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    emitir(IRTG(IR_EQ, IRT_STR), J->base[1], lj_ir_kstr(J, strV(&rd->argv[1])));
+    rd->nres = 3;  /* Just in case. */
+  }
+  J->postproc = LJ_POST_FIXCONST;
+  J->base[0] = J->base[1] = J->base[2] = TREF_NIL;
+}
+
+void LJ_FASTCALL recff_ffi_gc(jit_State *J, RecordFFData *rd)
+{
+  argv2cdata(J, J->base[0], &rd->argv[0]);
+  crec_finalizer(J, J->base[0], &rd->argv[1]);
+}
+
+/* -- Miscellaneous library functions ------------------------------------- */
+
+void LJ_FASTCALL lj_crecord_tonumber(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *d, *ct = lj_ctype_rawref(cts, cdataV(&rd->argv[0])->ctypeid);
+  if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+  if (ctype_isnum(ct->info) || ctype_iscomplex(ct->info)) {
+    if (ctype_isinteger_or_bool(ct->info) && ct->size <= 4 &&
+	!(ct->size == 4 && (ct->info & CTF_UNSIGNED)))
+      d = ctype_get(cts, CTID_INT32);
+    else
+      d = ctype_get(cts, CTID_DOUBLE);
+    J->base[0] = crec_ct_tv(J, d, 0, J->base[0], &rd->argv[0]);
+  } else {
+    J->base[0] = TREF_NIL;
+  }
+}
+
+#undef IR
+#undef emitir
+#undef emitconv
+
+#endif
diff --git a/lib/luajit/src/lj_crecord.h b/lib/luajit/src/lj_crecord.h
new file mode 100644
index 00000000..fb77ca60
--- /dev/null
+++ b/lib/luajit/src/lj_crecord.h
@@ -0,0 +1,31 @@
+/*
+** Trace recorder for C data operations.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CRECORD_H
+#define _LJ_CRECORD_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+#include "lj_ffrecord.h"
+
+#if LJ_HASJIT && LJ_HASFFI
+LJ_FUNC void LJ_FASTCALL recff_cdata_index(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_cdata_call(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_cdata_arith(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_clib_index(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_new(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_errno(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_string(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_copy(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_fill(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_typeof(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_istype(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_abi(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_xof(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_gc(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL lj_crecord_tonumber(jit_State *J, RecordFFData *rd);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_ctype.c b/lib/luajit/src/lj_ctype.c
new file mode 100644
index 00000000..e9fe0943
--- /dev/null
+++ b/lib/luajit/src/lj_ctype.c
@@ -0,0 +1,634 @@
+/*
+** C type management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_ccallback.h"
+
+/* -- C type definitions -------------------------------------------------- */
+
+/* Predefined typedefs. */
+#define CTTDDEF(_) \
+  /* Vararg handling. */ \
+  _("va_list",			P_VOID) \
+  _("__builtin_va_list",	P_VOID) \
+  _("__gnuc_va_list",		P_VOID) \
+  /* From stddef.h. */ \
+  _("ptrdiff_t",		INT_PSZ) \
+  _("size_t",			UINT_PSZ) \
+  _("wchar_t",			WCHAR) \
+  /* Subset of stdint.h. */ \
+  _("int8_t",			INT8) \
+  _("int16_t",			INT16) \
+  _("int32_t",			INT32) \
+  _("int64_t",			INT64) \
+  _("uint8_t",			UINT8) \
+  _("uint16_t",			UINT16) \
+  _("uint32_t",			UINT32) \
+  _("uint64_t",			UINT64) \
+  _("intptr_t",			INT_PSZ) \
+  _("uintptr_t",		UINT_PSZ) \
+  /* End of typedef list. */
+
+/* Keywords (only the ones we actually care for). */
+#define CTKWDEF(_) \
+  /* Type specifiers. */ \
+  _("void",		-1,	CTOK_VOID) \
+  _("_Bool",		0,	CTOK_BOOL) \
+  _("bool",		1,	CTOK_BOOL) \
+  _("char",		1,	CTOK_CHAR) \
+  _("int",		4,	CTOK_INT) \
+  _("__int8",		1,	CTOK_INT) \
+  _("__int16",		2,	CTOK_INT) \
+  _("__int32",		4,	CTOK_INT) \
+  _("__int64",		8,	CTOK_INT) \
+  _("float",		4,	CTOK_FP) \
+  _("double",		8,	CTOK_FP) \
+  _("long",		0,	CTOK_LONG) \
+  _("short",		0,	CTOK_SHORT) \
+  _("_Complex",		0,	CTOK_COMPLEX) \
+  _("complex",		0,	CTOK_COMPLEX) \
+  _("__complex",	0,	CTOK_COMPLEX) \
+  _("__complex__",	0,	CTOK_COMPLEX) \
+  _("signed",		0,	CTOK_SIGNED) \
+  _("__signed",		0,	CTOK_SIGNED) \
+  _("__signed__",	0,	CTOK_SIGNED) \
+  _("unsigned",		0,	CTOK_UNSIGNED) \
+  /* Type qualifiers. */ \
+  _("const",		0,	CTOK_CONST) \
+  _("__const",		0,	CTOK_CONST) \
+  _("__const__",	0,	CTOK_CONST) \
+  _("volatile",		0,	CTOK_VOLATILE) \
+  _("__volatile",	0,	CTOK_VOLATILE) \
+  _("__volatile__",	0,	CTOK_VOLATILE) \
+  _("restrict",		0,	CTOK_RESTRICT) \
+  _("__restrict",	0,	CTOK_RESTRICT) \
+  _("__restrict__",	0,	CTOK_RESTRICT) \
+  _("inline",		0,	CTOK_INLINE) \
+  _("__inline",		0,	CTOK_INLINE) \
+  _("__inline__",	0,	CTOK_INLINE) \
+  /* Storage class specifiers. */ \
+  _("typedef",		0,	CTOK_TYPEDEF) \
+  _("extern",		0,	CTOK_EXTERN) \
+  _("static",		0,	CTOK_STATIC) \
+  _("auto",		0,	CTOK_AUTO) \
+  _("register",		0,	CTOK_REGISTER) \
+  /* GCC Attributes. */ \
+  _("__extension__",	0,	CTOK_EXTENSION) \
+  _("__attribute",	0,	CTOK_ATTRIBUTE) \
+  _("__attribute__",	0,	CTOK_ATTRIBUTE) \
+  _("asm",		0,	CTOK_ASM) \
+  _("__asm",		0,	CTOK_ASM) \
+  _("__asm__",		0,	CTOK_ASM) \
+  /* MSVC Attributes. */ \
+  _("__declspec",	0,	CTOK_DECLSPEC) \
+  _("__cdecl",		CTCC_CDECL,	CTOK_CCDECL) \
+  _("__thiscall",	CTCC_THISCALL,	CTOK_CCDECL) \
+  _("__fastcall",	CTCC_FASTCALL,	CTOK_CCDECL) \
+  _("__stdcall",	CTCC_STDCALL,	CTOK_CCDECL) \
+  _("__ptr32",		4,	CTOK_PTRSZ) \
+  _("__ptr64",		8,	CTOK_PTRSZ) \
+  /* Other type specifiers. */ \
+  _("struct",		0,	CTOK_STRUCT) \
+  _("union",		0,	CTOK_UNION) \
+  _("enum",		0,	CTOK_ENUM) \
+  /* Operators. */ \
+  _("sizeof",		0,	CTOK_SIZEOF) \
+  _("__alignof",	0,	CTOK_ALIGNOF) \
+  _("__alignof__",	0,	CTOK_ALIGNOF) \
+  /* End of keyword list. */
+
+/* Type info for predefined types. Size merged in. */
+static CTInfo lj_ctype_typeinfo[] = {
+#define CTTYINFODEF(id, sz, ct, info)	CTINFO((ct),(((sz)&0x3fu)<<10)+(info)),
+#define CTTDINFODEF(name, id)		CTINFO(CT_TYPEDEF, CTID_##id),
+#define CTKWINFODEF(name, sz, kw)	CTINFO(CT_KW,(((sz)&0x3fu)<<10)+(kw)),
+CTTYDEF(CTTYINFODEF)
+CTTDDEF(CTTDINFODEF)
+CTKWDEF(CTKWINFODEF)
+#undef CTTYINFODEF
+#undef CTTDINFODEF
+#undef CTKWINFODEF
+  0
+};
+
+/* Predefined type names collected in a single string. */
+static const char * const lj_ctype_typenames =
+#define CTTDNAMEDEF(name, id)		name "\0"
+#define CTKWNAMEDEF(name, sz, cds)	name "\0"
+CTTDDEF(CTTDNAMEDEF)
+CTKWDEF(CTKWNAMEDEF)
+#undef CTTDNAMEDEF
+#undef CTKWNAMEDEF
+;
+
+#define CTTYPEINFO_NUM		(sizeof(lj_ctype_typeinfo)/sizeof(CTInfo)-1)
+#ifdef LUAJIT_CTYPE_CHECK_ANCHOR
+#define CTTYPETAB_MIN		CTTYPEINFO_NUM
+#else
+#define CTTYPETAB_MIN		128
+#endif
+
+/* -- C type interning ---------------------------------------------------- */
+
+#define ct_hashtype(info, size)	(hashrot(info, size) & CTHASH_MASK)
+#define ct_hashname(name) \
+  (hashrot(u32ptr(name), u32ptr(name) + HASH_BIAS) & CTHASH_MASK)
+
+/* Create new type element. */
+CTypeID lj_ctype_new(CTState *cts, CType **ctp)
+{
+  CTypeID id = cts->top;
+  CType *ct;
+  lua_assert(cts->L);
+  if (LJ_UNLIKELY(id >= cts->sizetab)) {
+    if (id >= CTID_MAX) lj_err_msg(cts->L, LJ_ERR_TABOV);
+#ifdef LUAJIT_CTYPE_CHECK_ANCHOR
+    ct = lj_mem_newvec(cts->L, id+1, CType);
+    memcpy(ct, cts->tab, id*sizeof(CType));
+    memset(cts->tab, 0, id*sizeof(CType));
+    lj_mem_freevec(cts->g, cts->tab, cts->sizetab, CType);
+    cts->tab = ct;
+    cts->sizetab = id+1;
+#else
+    lj_mem_growvec(cts->L, cts->tab, cts->sizetab, CTID_MAX, CType);
+#endif
+  }
+  cts->top = id+1;
+  *ctp = ct = &cts->tab[id];
+  ct->info = 0;
+  ct->size = 0;
+  ct->sib = 0;
+  ct->next = 0;
+  setgcrefnull(ct->name);
+  return id;
+}
+
+/* Intern a type element. */
+CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size)
+{
+  uint32_t h = ct_hashtype(info, size);
+  CTypeID id = cts->hash[h];
+  lua_assert(cts->L);
+  while (id) {
+    CType *ct = ctype_get(cts, id);
+    if (ct->info == info && ct->size == size)
+      return id;
+    id = ct->next;
+  }
+  id = cts->top;
+  if (LJ_UNLIKELY(id >= cts->sizetab)) {
+    if (id >= CTID_MAX) lj_err_msg(cts->L, LJ_ERR_TABOV);
+    lj_mem_growvec(cts->L, cts->tab, cts->sizetab, CTID_MAX, CType);
+  }
+  cts->top = id+1;
+  cts->tab[id].info = info;
+  cts->tab[id].size = size;
+  cts->tab[id].sib = 0;
+  cts->tab[id].next = cts->hash[h];
+  setgcrefnull(cts->tab[id].name);
+  cts->hash[h] = (CTypeID1)id;
+  return id;
+}
+
+/* Add type element to hash table. */
+static void ctype_addtype(CTState *cts, CType *ct, CTypeID id)
+{
+  uint32_t h = ct_hashtype(ct->info, ct->size);
+  ct->next = cts->hash[h];
+  cts->hash[h] = (CTypeID1)id;
+}
+
+/* Add named element to hash table. */
+void lj_ctype_addname(CTState *cts, CType *ct, CTypeID id)
+{
+  uint32_t h = ct_hashname(gcref(ct->name));
+  ct->next = cts->hash[h];
+  cts->hash[h] = (CTypeID1)id;
+}
+
+/* Get a C type by name, matching the type mask. */
+CTypeID lj_ctype_getname(CTState *cts, CType **ctp, GCstr *name, uint32_t tmask)
+{
+  CTypeID id = cts->hash[ct_hashname(name)];
+  while (id) {
+    CType *ct = ctype_get(cts, id);
+    if (gcref(ct->name) == obj2gco(name) &&
+	((tmask >> ctype_type(ct->info)) & 1)) {
+      *ctp = ct;
+      return id;
+    }
+    id = ct->next;
+  }
+  *ctp = &cts->tab[0];  /* Simplify caller logic. ctype_get() would assert. */
+  return 0;
+}
+
+/* Get a struct/union/enum/function field by name. */
+CType *lj_ctype_getfieldq(CTState *cts, CType *ct, GCstr *name, CTSize *ofs,
+			  CTInfo *qual)
+{
+  while (ct->sib) {
+    ct = ctype_get(cts, ct->sib);
+    if (gcref(ct->name) == obj2gco(name)) {
+      *ofs = ct->size;
+      return ct;
+    }
+    if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      CType *fct, *cct = ctype_child(cts, ct);
+      CTInfo q = 0;
+      while (ctype_isattrib(cct->info)) {
+	if (ctype_attrib(cct->info) == CTA_QUAL) q |= cct->size;
+	cct = ctype_child(cts, cct);
+      }
+      fct = lj_ctype_getfieldq(cts, cct, name, ofs, qual);
+      if (fct) {
+	if (qual) *qual |= q;
+	*ofs += ct->size;
+	return fct;
+      }
+    }
+  }
+  return NULL;  /* Not found. */
+}
+
+/* -- C type information -------------------------------------------------- */
+
+/* Follow references and get raw type for a C type ID. */
+CType *lj_ctype_rawref(CTState *cts, CTypeID id)
+{
+  CType *ct = ctype_get(cts, id);
+  while (ctype_isattrib(ct->info) || ctype_isref(ct->info))
+    ct = ctype_child(cts, ct);
+  return ct;
+}
+
+/* Get size for a C type ID. Does NOT support VLA/VLS. */
+CTSize lj_ctype_size(CTState *cts, CTypeID id)
+{
+  CType *ct = ctype_raw(cts, id);
+  return ctype_hassize(ct->info) ? ct->size : CTSIZE_INVALID;
+}
+
+/* Get size for a variable-length C type. Does NOT support other C types. */
+CTSize lj_ctype_vlsize(CTState *cts, CType *ct, CTSize nelem)
+{
+  uint64_t xsz = 0;
+  if (ctype_isstruct(ct->info)) {
+    CTypeID arrid = 0, fid = ct->sib;
+    xsz = ct->size;  /* Add the struct size. */
+    while (fid) {
+      CType *ctf = ctype_get(cts, fid);
+      if (ctype_type(ctf->info) == CT_FIELD)
+	arrid = ctype_cid(ctf->info);  /* Remember last field of VLS. */
+      fid = ctf->sib;
+    }
+    ct = ctype_raw(cts, arrid);
+  }
+  lua_assert(ctype_isvlarray(ct->info));  /* Must be a VLA. */
+  ct = ctype_rawchild(cts, ct);  /* Get array element. */
+  lua_assert(ctype_hassize(ct->info));
+  /* Calculate actual size of VLA and check for overflow. */
+  xsz += (uint64_t)ct->size * nelem;
+  return xsz < 0x80000000u ? (CTSize)xsz : CTSIZE_INVALID;
+}
+
+/* Get type, qualifiers, size and alignment for a C type ID. */
+CTInfo lj_ctype_info(CTState *cts, CTypeID id, CTSize *szp)
+{
+  CTInfo qual = 0;
+  CType *ct = ctype_get(cts, id);
+  for (;;) {
+    CTInfo info = ct->info;
+    if (ctype_isenum(info)) {
+      /* Follow child. Need to look at its attributes, too. */
+    } else if (ctype_isattrib(info)) {
+      if (ctype_isxattrib(info, CTA_QUAL))
+	qual |= ct->size;
+      else if (ctype_isxattrib(info, CTA_ALIGN) && !(qual & CTFP_ALIGNED))
+	qual |= CTFP_ALIGNED + CTALIGN(ct->size);
+    } else {
+      if (!(qual & CTFP_ALIGNED)) qual |= (info & CTF_ALIGN);
+      qual |= (info & ~(CTF_ALIGN|CTMASK_CID));
+      lua_assert(ctype_hassize(info) || ctype_isfunc(info));
+      *szp = ctype_isfunc(info) ? CTSIZE_INVALID : ct->size;
+      break;
+    }
+    ct = ctype_get(cts, ctype_cid(info));
+  }
+  return qual;
+}
+
+/* Get ctype metamethod. */
+cTValue *lj_ctype_meta(CTState *cts, CTypeID id, MMS mm)
+{
+  CType *ct = ctype_get(cts, id);
+  cTValue *tv;
+  while (ctype_isattrib(ct->info) || ctype_isref(ct->info)) {
+    id = ctype_cid(ct->info);
+    ct = ctype_get(cts, id);
+  }
+  if (ctype_isptr(ct->info) &&
+      ctype_isfunc(ctype_get(cts, ctype_cid(ct->info))->info))
+    tv = lj_tab_getstr(cts->miscmap, &cts->g->strempty);
+  else
+    tv = lj_tab_getinth(cts->miscmap, -(int32_t)id);
+  if (tv && tvistab(tv) &&
+      (tv = lj_tab_getstr(tabV(tv), mmname_str(cts->g, mm))) && !tvisnil(tv))
+    return tv;
+  return NULL;
+}
+
+/* -- C type representation ----------------------------------------------- */
+
+/* Fixed max. length of a C type representation. */
+#define CTREPR_MAX		512
+
+typedef struct CTRepr {
+  char *pb, *pe;
+  CTState *cts;
+  lua_State *L;
+  int needsp;
+  int ok;
+  char buf[CTREPR_MAX];
+} CTRepr;
+
+/* Prepend string. */
+static void ctype_prepstr(CTRepr *ctr, const char *str, MSize len)
+{
+  char *p = ctr->pb;
+  if (ctr->buf + len+1 > p) { ctr->ok = 0; return; }
+  if (ctr->needsp) *--p = ' ';
+  ctr->needsp = 1;
+  p -= len;
+  while (len-- > 0) p[len] = str[len];
+  ctr->pb = p;
+}
+
+#define ctype_preplit(ctr, str)	ctype_prepstr((ctr), "" str, sizeof(str)-1)
+
+/* Prepend char. */
+static void ctype_prepc(CTRepr *ctr, int c)
+{
+  if (ctr->buf >= ctr->pb) { ctr->ok = 0; return; }
+  *--ctr->pb = c;
+}
+
+/* Prepend number. */
+static void ctype_prepnum(CTRepr *ctr, uint32_t n)
+{
+  char *p = ctr->pb;
+  if (ctr->buf + 10+1 > p) { ctr->ok = 0; return; }
+  do { *--p = (char)('0' + n % 10); } while (n /= 10);
+  ctr->pb = p;
+  ctr->needsp = 0;
+}
+
+/* Append char. */
+static void ctype_appc(CTRepr *ctr, int c)
+{
+  if (ctr->pe >= ctr->buf + CTREPR_MAX) { ctr->ok = 0; return; }
+  *ctr->pe++ = c;
+}
+
+/* Append number. */
+static void ctype_appnum(CTRepr *ctr, uint32_t n)
+{
+  char buf[10];
+  char *p = buf+sizeof(buf);
+  char *q = ctr->pe;
+  if (q > ctr->buf + CTREPR_MAX - 10) { ctr->ok = 0; return; }
+  do { *--p = (char)('0' + n % 10); } while (n /= 10);
+  do { *q++ = *p++; } while (p < buf+sizeof(buf));
+  ctr->pe = q;
+}
+
+/* Prepend qualifiers. */
+static void ctype_prepqual(CTRepr *ctr, CTInfo info)
+{
+  if ((info & CTF_VOLATILE)) ctype_preplit(ctr, "volatile");
+  if ((info & CTF_CONST)) ctype_preplit(ctr, "const");
+}
+
+/* Prepend named type. */
+static void ctype_preptype(CTRepr *ctr, CType *ct, CTInfo qual, const char *t)
+{
+  if (gcref(ct->name)) {
+    GCstr *str = gco2str(gcref(ct->name));
+    ctype_prepstr(ctr, strdata(str), str->len);
+  } else {
+    if (ctr->needsp) ctype_prepc(ctr, ' ');
+    ctype_prepnum(ctr, ctype_typeid(ctr->cts, ct));
+    ctr->needsp = 1;
+  }
+  ctype_prepstr(ctr, t, (MSize)strlen(t));
+  ctype_prepqual(ctr, qual);
+}
+
+static void ctype_repr(CTRepr *ctr, CTypeID id)
+{
+  CType *ct = ctype_get(ctr->cts, id);
+  CTInfo qual = 0;
+  int ptrto = 0;
+  for (;;) {
+    CTInfo info = ct->info;
+    CTSize size = ct->size;
+    switch (ctype_type(info)) {
+    case CT_NUM:
+      if ((info & CTF_BOOL)) {
+	ctype_preplit(ctr, "bool");
+      } else if ((info & CTF_FP)) {
+	if (size == sizeof(double)) ctype_preplit(ctr, "double");
+	else if (size == sizeof(float)) ctype_preplit(ctr, "float");
+	else ctype_preplit(ctr, "long double");
+      } else if (size == 1) {
+	if (!((info ^ CTF_UCHAR) & CTF_UNSIGNED)) ctype_preplit(ctr, "char");
+	else if (CTF_UCHAR) ctype_preplit(ctr, "signed char");
+	else ctype_preplit(ctr, "unsigned char");
+      } else if (size < 8) {
+	if (size == 4) ctype_preplit(ctr, "int");
+	else ctype_preplit(ctr, "short");
+	if ((info & CTF_UNSIGNED)) ctype_preplit(ctr, "unsigned");
+      } else {
+	ctype_preplit(ctr, "_t");
+	ctype_prepnum(ctr, size*8);
+	ctype_preplit(ctr, "int");
+	if ((info & CTF_UNSIGNED)) ctype_prepc(ctr, 'u');
+      }
+      ctype_prepqual(ctr, (qual|info));
+      return;
+    case CT_VOID:
+      ctype_preplit(ctr, "void");
+      ctype_prepqual(ctr, (qual|info));
+      return;
+    case CT_STRUCT:
+      ctype_preptype(ctr, ct, qual, (info & CTF_UNION) ? "union" : "struct");
+      return;
+    case CT_ENUM:
+      if (id == CTID_CTYPEID) {
+	ctype_preplit(ctr, "ctype");
+	return;
+      }
+      ctype_preptype(ctr, ct, qual, "enum");
+      return;
+    case CT_ATTRIB:
+      if (ctype_attrib(info) == CTA_QUAL) qual |= size;
+      break;
+    case CT_PTR:
+      if ((info & CTF_REF)) {
+	ctype_prepc(ctr, '&');
+      } else {
+	ctype_prepqual(ctr, (qual|info));
+	if (LJ_64 && size == 4) ctype_preplit(ctr, "__ptr32");
+	ctype_prepc(ctr, '*');
+      }
+      qual = 0;
+      ptrto = 1;
+      ctr->needsp = 1;
+      break;
+    case CT_ARRAY:
+      if (ctype_isrefarray(info)) {
+	ctr->needsp = 1;
+	if (ptrto) { ptrto = 0; ctype_prepc(ctr, '('); ctype_appc(ctr, ')'); }
+	ctype_appc(ctr, '[');
+	if (size != CTSIZE_INVALID) {
+	  CTSize csize = ctype_child(ctr->cts, ct)->size;
+	  ctype_appnum(ctr, csize ? size/csize : 0);
+	} else if ((info & CTF_VLA)) {
+	  ctype_appc(ctr, '?');
+	}
+	ctype_appc(ctr, ']');
+      } else if ((info & CTF_COMPLEX)) {
+	if (size == 2*sizeof(float)) ctype_preplit(ctr, "float");
+	ctype_preplit(ctr, "complex");
+	return;
+      } else {
+	ctype_preplit(ctr, ")))");
+	ctype_prepnum(ctr, size);
+	ctype_preplit(ctr, "__attribute__((vector_size(");
+      }
+      break;
+    case CT_FUNC:
+      ctr->needsp = 1;
+      if (ptrto) { ptrto = 0; ctype_prepc(ctr, '('); ctype_appc(ctr, ')'); }
+      ctype_appc(ctr, '(');
+      ctype_appc(ctr, ')');
+      break;
+    default:
+      lua_assert(0);
+      break;
+    }
+    ct = ctype_get(ctr->cts, ctype_cid(info));
+  }
+}
+
+/* Return a printable representation of a C type. */
+GCstr *lj_ctype_repr(lua_State *L, CTypeID id, GCstr *name)
+{
+  global_State *g = G(L);
+  CTRepr ctr;
+  ctr.pb = ctr.pe = &ctr.buf[CTREPR_MAX/2];
+  ctr.cts = ctype_ctsG(g);
+  ctr.L = L;
+  ctr.ok = 1;
+  ctr.needsp = 0;
+  if (name) ctype_prepstr(&ctr, strdata(name), name->len);
+  ctype_repr(&ctr, id);
+  if (LJ_UNLIKELY(!ctr.ok)) return lj_str_newlit(L, "?");
+  return lj_str_new(L, ctr.pb, ctr.pe - ctr.pb);
+}
+
+/* Convert int64_t/uint64_t to string with 'LL' or 'ULL' suffix. */
+GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned)
+{
+  char buf[1+20+3];
+  char *p = buf+sizeof(buf);
+  int sign = 0;
+  *--p = 'L'; *--p = 'L';
+  if (isunsigned) {
+    *--p = 'U';
+  } else if ((int64_t)n < 0) {
+    n = (uint64_t)-(int64_t)n;
+    sign = 1;
+  }
+  do { *--p = (char)('0' + n % 10); } while (n /= 10);
+  if (sign) *--p = '-';
+  return lj_str_new(L, p, (size_t)(buf+sizeof(buf)-p));
+}
+
+/* Convert complex to string with 'i' or 'I' suffix. */
+GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size)
+{
+  char buf[2*LJ_STR_NUMBUF+2+1];
+  TValue re, im;
+  size_t len;
+  if (size == 2*sizeof(double)) {
+    re.n = *(double *)sp; im.n = ((double *)sp)[1];
+  } else {
+    re.n = (double)*(float *)sp; im.n = (double)((float *)sp)[1];
+  }
+  len = lj_str_bufnum(buf, &re);
+  if (!(im.u32.hi & 0x80000000u) || im.n != im.n) buf[len++] = '+';
+  len += lj_str_bufnum(buf+len, &im);
+  buf[len] = buf[len-1] >= 'a' ? 'I' : 'i';
+  return lj_str_new(L, buf, len+1);
+}
+
+/* -- C type state -------------------------------------------------------- */
+
+/* Initialize C type table and state. */
+CTState *lj_ctype_init(lua_State *L)
+{
+  CTState *cts = lj_mem_newt(L, sizeof(CTState), CTState);
+  CType *ct = lj_mem_newvec(L, CTTYPETAB_MIN, CType);
+  const char *name = lj_ctype_typenames;
+  CTypeID id;
+  memset(cts, 0, sizeof(CTState));
+  cts->tab = ct;
+  cts->sizetab = CTTYPETAB_MIN;
+  cts->top = CTTYPEINFO_NUM;
+  cts->L = NULL;
+  cts->g = G(L);
+  for (id = 0; id < CTTYPEINFO_NUM; id++, ct++) {
+    CTInfo info = lj_ctype_typeinfo[id];
+    ct->size = (CTSize)((int32_t)(info << 16) >> 26);
+    ct->info = info & 0xffff03ffu;
+    ct->sib = 0;
+    if (ctype_type(info) == CT_KW || ctype_istypedef(info)) {
+      size_t len = strlen(name);
+      GCstr *str = lj_str_new(L, name, len);
+      ctype_setname(ct, str);
+      name += len+1;
+      lj_ctype_addname(cts, ct, id);
+    } else {
+      setgcrefnull(ct->name);
+      ct->next = 0;
+      if (!ctype_isenum(info)) ctype_addtype(cts, ct, id);
+    }
+  }
+  setmref(G(L)->ctype_state, cts);
+  return cts;
+}
+
+/* Free C type table and state. */
+void lj_ctype_freestate(global_State *g)
+{
+  CTState *cts = ctype_ctsG(g);
+  if (cts) {
+    lj_ccallback_mcode_free(cts);
+    lj_mem_freevec(g, cts->tab, cts->sizetab, CType);
+    lj_mem_freevec(g, cts->cb.cbid, cts->cb.sizeid, CTypeID1);
+    lj_mem_freet(g, cts);
+  }
+}
+
+#endif
diff --git a/lib/luajit/src/lj_ctype.h b/lib/luajit/src/lj_ctype.h
new file mode 100644
index 00000000..ff8ee069
--- /dev/null
+++ b/lib/luajit/src/lj_ctype.h
@@ -0,0 +1,461 @@
+/*
+** C type management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CTYPE_H
+#define _LJ_CTYPE_H
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+
+#if LJ_HASFFI
+
+/* -- C type definitions -------------------------------------------------- */
+
+/* C type numbers. Highest 4 bits of C type info. ORDER CT. */
+enum {
+  /* Externally visible types. */
+  CT_NUM,		/* Integer or floating-point numbers. */
+  CT_STRUCT,		/* Struct or union. */
+  CT_PTR,		/* Pointer or reference. */
+  CT_ARRAY,		/* Array or complex type. */
+  CT_MAYCONVERT = CT_ARRAY,
+  CT_VOID,		/* Void type. */
+  CT_ENUM,		/* Enumeration. */
+  CT_HASSIZE = CT_ENUM,  /* Last type where ct->size holds the actual size. */
+  CT_FUNC,		/* Function. */
+  CT_TYPEDEF,		/* Typedef. */
+  CT_ATTRIB,		/* Miscellaneous attributes. */
+  /* Internal element types. */
+  CT_FIELD,		/* Struct/union field or function parameter. */
+  CT_BITFIELD,		/* Struct/union bitfield. */
+  CT_CONSTVAL,		/* Constant value. */
+  CT_EXTERN,		/* External reference. */
+  CT_KW			/* Keyword. */
+};
+
+LJ_STATIC_ASSERT(((int)CT_PTR & (int)CT_ARRAY) == CT_PTR);
+LJ_STATIC_ASSERT(((int)CT_STRUCT & (int)CT_ARRAY) == CT_STRUCT);
+
+/*
+**  ---------- info ------------
+** |type      flags...  A   cid | size   |  sib  | next  | name  |
+** +----------------------------+--------+-------+-------+-------+--
+** |NUM       BFvcUL..  A       | size   |       | type  |       |
+** |STRUCT    ..vcU..V  A       | size   | field | name? | name? |
+** |PTR       ..vcR...  A   cid | size   |       | type  |       |
+** |ARRAY     VCvc...V  A   cid | size   |       | type  |       |
+** |VOID      ..vc....  A       | size   |       | type  |       |
+** |ENUM                A   cid | size   | const | name? | name? |
+** |FUNC      ....VS.. cc   cid | nargs  | field | name? | name? |
+** |TYPEDEF                 cid |        |       | name  | name  |
+** |ATTRIB        attrnum   cid | attr   | sib?  | type? |       |
+** |FIELD                   cid | offset | field |       | name? |
+** |BITFIELD  B.vcU csz bsz pos | offset | field |       | name? |
+** |CONSTVAL     c          cid | value  | const | name  | name  |
+** |EXTERN                  cid |        | sib?  | name  | name  |
+** |KW                      tok | size   |       | name  | name  |
+** +----------------------------+--------+-------+-------+-------+--
+**        ^^  ^^--- bits used for C type conversion dispatch
+*/
+
+/* C type info flags.     TFFArrrr  */
+#define CTF_BOOL	0x08000000u	/* Boolean: NUM, BITFIELD. */
+#define CTF_FP		0x04000000u	/* Floating-point: NUM. */
+#define CTF_CONST	0x02000000u	/* Const qualifier. */
+#define CTF_VOLATILE	0x01000000u	/* Volatile qualifier. */
+#define CTF_UNSIGNED	0x00800000u	/* Unsigned: NUM, BITFIELD. */
+#define CTF_LONG	0x00400000u	/* Long: NUM. */
+#define CTF_VLA		0x00100000u	/* Variable-length: ARRAY, STRUCT. */
+#define CTF_REF		0x00800000u	/* Reference: PTR. */
+#define CTF_VECTOR	0x08000000u	/* Vector: ARRAY. */
+#define CTF_COMPLEX	0x04000000u	/* Complex: ARRAY. */
+#define CTF_UNION	0x00800000u	/* Union: STRUCT. */
+#define CTF_VARARG	0x00800000u	/* Vararg: FUNC. */
+#define CTF_SSEREGPARM	0x00400000u	/* SSE register parameters: FUNC. */
+
+#define CTF_QUAL	(CTF_CONST|CTF_VOLATILE)
+#define CTF_ALIGN	(CTMASK_ALIGN<<CTSHIFT_ALIGN)
+#define CTF_UCHAR	((char)-1 > 0 ? CTF_UNSIGNED : 0)
+
+/* Flags used in parser.  .F.Ammvf   cp->attr  */
+#define CTFP_ALIGNED	0x00000001u	/* cp->attr + ALIGN */
+#define CTFP_PACKED	0x00000002u	/* cp->attr */
+/*                        ...C...f   cp->fattr */
+#define CTFP_CCONV	0x00000001u	/* cp->fattr + CCONV/[SSE]REGPARM */
+
+/* C type info bitfields. */
+#define CTMASK_CID	0x0000ffffu	/* Max. 65536 type IDs. */
+#define CTMASK_NUM	0xf0000000u	/* Max. 16 type numbers. */
+#define CTSHIFT_NUM	28
+#define CTMASK_ALIGN	15		/* Max. alignment is 2^15. */
+#define CTSHIFT_ALIGN	16
+#define CTMASK_ATTRIB	255		/* Max. 256 attributes. */
+#define CTSHIFT_ATTRIB	16
+#define CTMASK_CCONV	3		/* Max. 4 calling conventions. */
+#define CTSHIFT_CCONV	16
+#define CTMASK_REGPARM	3		/* Max. 0-3 regparms. */
+#define CTSHIFT_REGPARM	18
+/* Bitfields only used in parser. */
+#define CTMASK_VSIZEP	15		/* Max. vector size is 2^15. */
+#define CTSHIFT_VSIZEP	4
+#define CTMASK_MSIZEP	255		/* Max. type size (via mode) is 128. */
+#define CTSHIFT_MSIZEP	8
+
+/* Info bits for BITFIELD. Max. size of bitfield is 64 bits. */
+#define CTBSZ_MAX	32		/* Max. size of bitfield is 32 bit. */
+#define CTBSZ_FIELD	127		/* Temp. marker for regular field. */
+#define CTMASK_BITPOS	127
+#define CTMASK_BITBSZ	127
+#define CTMASK_BITCSZ	127
+#define CTSHIFT_BITPOS	0
+#define CTSHIFT_BITBSZ	8
+#define CTSHIFT_BITCSZ	16
+
+#define CTF_INSERT(info, field, val) \
+  info = (info & ~(CTMASK_##field<<CTSHIFT_##field)) | \
+	  (((CTSize)(val) & CTMASK_##field) << CTSHIFT_##field)
+
+/* Calling conventions. ORDER CC */
+enum { CTCC_CDECL, CTCC_THISCALL, CTCC_FASTCALL, CTCC_STDCALL };
+
+/* Attribute numbers. */
+enum {
+  CTA_NONE,		/* Ignored attribute. Must be zero. */
+  CTA_QUAL,		/* Unmerged qualifiers. */
+  CTA_ALIGN,		/* Alignment override. */
+  CTA_SUBTYPE,		/* Transparent sub-type. */
+  CTA_REDIR,		/* Redirected symbol name. */
+  CTA_BAD,		/* To catch bad IDs. */
+  CTA__MAX
+};
+
+/* Special sizes. */
+#define CTSIZE_INVALID	0xffffffffu
+
+typedef uint32_t CTInfo;	/* Type info. */
+typedef uint32_t CTSize;	/* Type size. */
+typedef uint32_t CTypeID;	/* Type ID. */
+typedef uint16_t CTypeID1;	/* Minimum-sized type ID. */
+
+/* C type table element. */
+typedef struct CType {
+  CTInfo info;		/* Type info. */
+  CTSize size;		/* Type size or other info. */
+  CTypeID1 sib;		/* Sibling element. */
+  CTypeID1 next;	/* Next element in hash chain. */
+  GCRef name;		/* Element name (GCstr). */
+} CType;
+
+#define CTHASH_SIZE	128	/* Number of hash anchors. */
+#define CTHASH_MASK	(CTHASH_SIZE-1)
+
+/* Simplify target-specific configuration. Checked in lj_ccall.h. */
+#define CCALL_MAX_GPR		8
+#define CCALL_MAX_FPR		8
+
+typedef LJ_ALIGN(8) union FPRCBArg { double d; float f[2]; } FPRCBArg;
+
+/* C callback state. Defined here, to avoid dragging in lj_ccall.h. */
+
+typedef LJ_ALIGN(8) struct CCallback {
+  FPRCBArg fpr[CCALL_MAX_FPR];	/* Arguments/results in FPRs. */
+  intptr_t gpr[CCALL_MAX_GPR];	/* Arguments/results in GPRs. */
+  intptr_t *stack;		/* Pointer to arguments on stack. */
+  void *mcode;			/* Machine code for callback func. pointers. */
+  CTypeID1 *cbid;		/* Callback type table. */
+  MSize sizeid;			/* Size of callback type table. */
+  MSize topid;			/* Highest unused callback type table slot. */
+  MSize slot;			/* Current callback slot. */
+} CCallback;
+
+/* C type state. */
+typedef struct CTState {
+  CType *tab;		/* C type table. */
+  CTypeID top;		/* Current top of C type table. */
+  MSize sizetab;	/* Size of C type table. */
+  lua_State *L;		/* Lua state (needed for errors and allocations). */
+  global_State *g;	/* Global state. */
+  GCtab *finalizer;	/* Map of cdata to finalizer. */
+  GCtab *miscmap;	/* Map of -CTypeID to metatable and cb slot to func. */
+  CCallback cb;		/* Temporary callback state. */
+  CTypeID1 hash[CTHASH_SIZE];  /* Hash anchors for C type table. */
+} CTState;
+
+#define CTINFO(ct, flags)	(((CTInfo)(ct) << CTSHIFT_NUM) + (flags))
+#define CTALIGN(al)		((CTSize)(al) << CTSHIFT_ALIGN)
+#define CTATTRIB(at)		((CTInfo)(at) << CTSHIFT_ATTRIB)
+
+#define ctype_type(info)	((info) >> CTSHIFT_NUM)
+#define ctype_cid(info)		((CTypeID)((info) & CTMASK_CID))
+#define ctype_align(info)	(((info) >> CTSHIFT_ALIGN) & CTMASK_ALIGN)
+#define ctype_attrib(info)	(((info) >> CTSHIFT_ATTRIB) & CTMASK_ATTRIB)
+#define ctype_bitpos(info)	(((info) >> CTSHIFT_BITPOS) & CTMASK_BITPOS)
+#define ctype_bitbsz(info)	(((info) >> CTSHIFT_BITBSZ) & CTMASK_BITBSZ)
+#define ctype_bitcsz(info)	(((info) >> CTSHIFT_BITCSZ) & CTMASK_BITCSZ)
+#define ctype_vsizeP(info)	(((info) >> CTSHIFT_VSIZEP) & CTMASK_VSIZEP)
+#define ctype_msizeP(info)	(((info) >> CTSHIFT_MSIZEP) & CTMASK_MSIZEP)
+#define ctype_cconv(info)	(((info) >> CTSHIFT_CCONV) & CTMASK_CCONV)
+
+/* Simple type checks. */
+#define ctype_isnum(info)	(ctype_type((info)) == CT_NUM)
+#define ctype_isvoid(info)	(ctype_type((info)) == CT_VOID)
+#define ctype_isptr(info)	(ctype_type((info)) == CT_PTR)
+#define ctype_isarray(info)	(ctype_type((info)) == CT_ARRAY)
+#define ctype_isstruct(info)	(ctype_type((info)) == CT_STRUCT)
+#define ctype_isfunc(info)	(ctype_type((info)) == CT_FUNC)
+#define ctype_isenum(info)	(ctype_type((info)) == CT_ENUM)
+#define ctype_istypedef(info)	(ctype_type((info)) == CT_TYPEDEF)
+#define ctype_isattrib(info)	(ctype_type((info)) == CT_ATTRIB)
+#define ctype_isfield(info)	(ctype_type((info)) == CT_FIELD)
+#define ctype_isbitfield(info)	(ctype_type((info)) == CT_BITFIELD)
+#define ctype_isconstval(info)	(ctype_type((info)) == CT_CONSTVAL)
+#define ctype_isextern(info)	(ctype_type((info)) == CT_EXTERN)
+#define ctype_hassize(info)	(ctype_type((info)) <= CT_HASSIZE)
+
+/* Combined type and flag checks. */
+#define ctype_isinteger(info) \
+  (((info) & (CTMASK_NUM|CTF_BOOL|CTF_FP)) == CTINFO(CT_NUM, 0))
+#define ctype_isinteger_or_bool(info) \
+  (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, 0))
+#define ctype_isbool(info) \
+  (((info) & (CTMASK_NUM|CTF_BOOL)) == CTINFO(CT_NUM, CTF_BOOL))
+#define ctype_isfp(info) \
+  (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, CTF_FP))
+
+#define ctype_ispointer(info) \
+  ((ctype_type(info) >> 1) == (CT_PTR >> 1))  /* Pointer or array. */
+#define ctype_isref(info) \
+  (((info) & (CTMASK_NUM|CTF_REF)) == CTINFO(CT_PTR, CTF_REF))
+
+#define ctype_isrefarray(info) \
+  (((info) & (CTMASK_NUM|CTF_VECTOR|CTF_COMPLEX)) == CTINFO(CT_ARRAY, 0))
+#define ctype_isvector(info) \
+  (((info) & (CTMASK_NUM|CTF_VECTOR)) == CTINFO(CT_ARRAY, CTF_VECTOR))
+#define ctype_iscomplex(info) \
+  (((info) & (CTMASK_NUM|CTF_COMPLEX)) == CTINFO(CT_ARRAY, CTF_COMPLEX))
+
+#define ctype_isvltype(info) \
+  (((info) & ((CTMASK_NUM|CTF_VLA) - (2u<<CTSHIFT_NUM))) == \
+   CTINFO(CT_STRUCT, CTF_VLA))  /* VL array or VL struct. */
+#define ctype_isvlarray(info) \
+  (((info) & (CTMASK_NUM|CTF_VLA)) == CTINFO(CT_ARRAY, CTF_VLA))
+
+#define ctype_isxattrib(info, at) \
+  (((info) & (CTMASK_NUM|CTATTRIB(CTMASK_ATTRIB))) == \
+   CTINFO(CT_ATTRIB, CTATTRIB(at)))
+
+/* Target-dependent sizes and alignments. */
+#if LJ_64
+#define CTSIZE_PTR	8
+#define CTALIGN_PTR	CTALIGN(3)
+#else
+#define CTSIZE_PTR	4
+#define CTALIGN_PTR	CTALIGN(2)
+#endif
+
+#define CTINFO_REF(ref) \
+  CTINFO(CT_PTR, (CTF_CONST|CTF_REF|CTALIGN_PTR) + (ref))
+
+#define CT_MEMALIGN	3	/* Alignment guaranteed by memory allocator. */
+
+/* -- Predefined types ---------------------------------------------------- */
+
+/* Target-dependent types. */
+#if LJ_TARGET_PPC || LJ_TARGET_PPCSPE
+#define CTTYDEFP(_) \
+  _(LINT32,		4,	CT_NUM, CTF_LONG|CTALIGN(2))
+#else
+#define CTTYDEFP(_)
+#endif
+
+/* Common types. */
+#define CTTYDEF(_) \
+  _(NONE,		0,	CT_ATTRIB, CTATTRIB(CTA_BAD)) \
+  _(VOID,		-1,	CT_VOID, CTALIGN(0)) \
+  _(CVOID,		-1,	CT_VOID, CTF_CONST|CTALIGN(0)) \
+  _(BOOL,		1,	CT_NUM, CTF_BOOL|CTF_UNSIGNED|CTALIGN(0)) \
+  _(CCHAR,		1,	CT_NUM, CTF_CONST|CTF_UCHAR|CTALIGN(0)) \
+  _(INT8,		1,	CT_NUM, CTALIGN(0)) \
+  _(UINT8,		1,	CT_NUM, CTF_UNSIGNED|CTALIGN(0)) \
+  _(INT16,		2,	CT_NUM, CTALIGN(1)) \
+  _(UINT16,		2,	CT_NUM, CTF_UNSIGNED|CTALIGN(1)) \
+  _(INT32,		4,	CT_NUM, CTALIGN(2)) \
+  _(UINT32,		4,	CT_NUM, CTF_UNSIGNED|CTALIGN(2)) \
+  _(INT64,		8,	CT_NUM, CTF_LONG|CTALIGN(3)) \
+  _(UINT64,		8,	CT_NUM, CTF_UNSIGNED|CTF_LONG|CTALIGN(3)) \
+  _(FLOAT,		4,	CT_NUM, CTF_FP|CTALIGN(2)) \
+  _(DOUBLE,		8,	CT_NUM, CTF_FP|CTALIGN(3)) \
+  _(COMPLEX_FLOAT,	8,	CT_ARRAY, CTF_COMPLEX|CTALIGN(2)|CTID_FLOAT) \
+  _(COMPLEX_DOUBLE,	16,	CT_ARRAY, CTF_COMPLEX|CTALIGN(3)|CTID_DOUBLE) \
+  _(P_VOID,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_VOID) \
+  _(P_CVOID,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_CVOID) \
+  _(P_CCHAR,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_CCHAR) \
+  _(A_CCHAR,		-1,	CT_ARRAY, CTF_CONST|CTALIGN(0)|CTID_CCHAR) \
+  _(CTYPEID,		4,	CT_ENUM, CTALIGN(2)|CTID_INT32) \
+  CTTYDEFP(_) \
+  /* End of type list. */
+
+/* Public predefined type IDs. */
+enum {
+#define CTTYIDDEF(id, sz, ct, info)	CTID_##id,
+CTTYDEF(CTTYIDDEF)
+#undef CTTYIDDEF
+  /* Predefined typedefs and keywords follow. */
+  CTID_MAX = 65536
+};
+
+/* Target-dependent type IDs. */
+#if LJ_64
+#define CTID_INT_PSZ	CTID_INT64
+#define CTID_UINT_PSZ	CTID_UINT64
+#else
+#define CTID_INT_PSZ	CTID_INT32
+#define CTID_UINT_PSZ	CTID_UINT32
+#endif
+
+#if LJ_ABI_WIN
+#define CTID_WCHAR	CTID_UINT16
+#elif LJ_TARGET_PPC
+#define CTID_WCHAR	CTID_LINT32
+#else
+#define CTID_WCHAR	CTID_INT32
+#endif
+
+/* -- C tokens and keywords ----------------------------------------------- */
+
+/* C lexer keywords. */
+#define CTOKDEF(_) \
+  _(IDENT, "<identifier>") _(STRING, "<string>") \
+  _(INTEGER, "<integer>") _(EOF, "<eof>") \
+  _(OROR, "||") _(ANDAND, "&&") _(EQ, "==") _(NE, "!=") \
+  _(LE, "<=") _(GE, ">=") _(SHL, "<<") _(SHR, ">>") _(DEREF, "->")
+
+/* Simple declaration specifiers. */
+#define CDSDEF(_) \
+  _(VOID) _(BOOL) _(CHAR) _(INT) _(FP) \
+  _(LONG) _(LONGLONG) _(SHORT) _(COMPLEX) _(SIGNED) _(UNSIGNED) \
+  _(CONST) _(VOLATILE) _(RESTRICT) _(INLINE) \
+  _(TYPEDEF) _(EXTERN) _(STATIC) _(AUTO) _(REGISTER)
+
+/* C keywords. */
+#define CKWDEF(_) \
+  CDSDEF(_) _(EXTENSION) _(ASM) _(ATTRIBUTE) \
+  _(DECLSPEC) _(CCDECL) _(PTRSZ) \
+  _(STRUCT) _(UNION) _(ENUM) \
+  _(SIZEOF) _(ALIGNOF)
+
+/* C token numbers. */
+enum {
+  CTOK_OFS = 255,
+#define CTOKNUM(name, sym)	CTOK_##name,
+#define CKWNUM(name)		CTOK_##name,
+CTOKDEF(CTOKNUM)
+CKWDEF(CKWNUM)
+#undef CTOKNUM
+#undef CKWNUM
+  CTOK_FIRSTDECL = CTOK_VOID,
+  CTOK_FIRSTSCL = CTOK_TYPEDEF,
+  CTOK_LASTDECLFLAG = CTOK_REGISTER,
+  CTOK_LASTDECL = CTOK_ENUM
+};
+
+/* Declaration specifier flags. */
+enum {
+#define CDSFLAG(name)	CDF_##name = (1u << (CTOK_##name - CTOK_FIRSTDECL)),
+CDSDEF(CDSFLAG)
+#undef CDSFLAG
+  CDF__END
+};
+
+#define CDF_SCL  (CDF_TYPEDEF|CDF_EXTERN|CDF_STATIC|CDF_AUTO|CDF_REGISTER)
+
+/* -- C type management --------------------------------------------------- */
+
+#define ctype_ctsG(g)		(mref((g)->ctype_state, CTState))
+
+/* Get C type state. */
+static LJ_AINLINE CTState *ctype_cts(lua_State *L)
+{
+  CTState *cts = ctype_ctsG(G(L));
+  cts->L = L;  /* Save L for errors and allocations. */
+  return cts;
+}
+
+/* Save and restore state of C type table. */
+#define LJ_CTYPE_SAVE(cts)	CTState savects_ = *(cts)
+#define LJ_CTYPE_RESTORE(cts) \
+  ((cts)->top = savects_.top, \
+   memcpy((cts)->hash, savects_.hash, sizeof(savects_.hash)))
+
+/* Check C type ID for validity when assertions are enabled. */
+static LJ_AINLINE CTypeID ctype_check(CTState *cts, CTypeID id)
+{
+  lua_assert(id > 0 && id < cts->top); UNUSED(cts);
+  return id;
+}
+
+/* Get C type for C type ID. */
+static LJ_AINLINE CType *ctype_get(CTState *cts, CTypeID id)
+{
+  return &cts->tab[ctype_check(cts, id)];
+}
+
+/* Get C type ID for a C type. */
+#define ctype_typeid(cts, ct)	((CTypeID)((ct) - (cts)->tab))
+
+/* Get child C type. */
+static LJ_AINLINE CType *ctype_child(CTState *cts, CType *ct)
+{
+  lua_assert(!(ctype_isvoid(ct->info) || ctype_isstruct(ct->info) ||
+	     ctype_isbitfield(ct->info)));  /* These don't have children. */
+  return ctype_get(cts, ctype_cid(ct->info));
+}
+
+/* Get raw type for a C type ID. */
+static LJ_AINLINE CType *ctype_raw(CTState *cts, CTypeID id)
+{
+  CType *ct = ctype_get(cts, id);
+  while (ctype_isattrib(ct->info)) ct = ctype_child(cts, ct);
+  return ct;
+}
+
+/* Get raw type of the child of a C type. */
+static LJ_AINLINE CType *ctype_rawchild(CTState *cts, CType *ct)
+{
+  do { ct = ctype_child(cts, ct); } while (ctype_isattrib(ct->info));
+  return ct;
+}
+
+/* Set the name of a C type table element. */
+static LJ_AINLINE void ctype_setname(CType *ct, GCstr *s)
+{
+  /* NOBARRIER: mark string as fixed -- the C type table is never collected. */
+  fixstring(s);
+  setgcref(ct->name, obj2gco(s));
+}
+
+LJ_FUNC CTypeID lj_ctype_new(CTState *cts, CType **ctp);
+LJ_FUNC CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size);
+LJ_FUNC void lj_ctype_addname(CTState *cts, CType *ct, CTypeID id);
+LJ_FUNC CTypeID lj_ctype_getname(CTState *cts, CType **ctp, GCstr *name,
+				 uint32_t tmask);
+LJ_FUNC CType *lj_ctype_getfieldq(CTState *cts, CType *ct, GCstr *name,
+				  CTSize *ofs, CTInfo *qual);
+#define lj_ctype_getfield(cts, ct, name, ofs) \
+  lj_ctype_getfieldq((cts), (ct), (name), (ofs), NULL)
+LJ_FUNC CType *lj_ctype_rawref(CTState *cts, CTypeID id);
+LJ_FUNC CTSize lj_ctype_size(CTState *cts, CTypeID id);
+LJ_FUNC CTSize lj_ctype_vlsize(CTState *cts, CType *ct, CTSize nelem);
+LJ_FUNC CTInfo lj_ctype_info(CTState *cts, CTypeID id, CTSize *szp);
+LJ_FUNC cTValue *lj_ctype_meta(CTState *cts, CTypeID id, MMS mm);
+LJ_FUNC GCstr *lj_ctype_repr(lua_State *L, CTypeID id, GCstr *name);
+LJ_FUNC GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned);
+LJ_FUNC GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size);
+LJ_FUNC CTState *lj_ctype_init(lua_State *L);
+LJ_FUNC void lj_ctype_freestate(global_State *g);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_debug.c b/lib/luajit/src/lj_debug.c
new file mode 100644
index 00000000..4653a4ec
--- /dev/null
+++ b/lib/luajit/src/lj_debug.c
@@ -0,0 +1,603 @@
+/*
+** Debugging and introspection.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_debug_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#endif
+
+/* -- Frames -------------------------------------------------------------- */
+
+/* Get frame corresponding to a level. */
+cTValue *lj_debug_frame(lua_State *L, int level, int *size)
+{
+  cTValue *frame, *nextframe, *bot = tvref(L->stack);
+  /* Traverse frames backwards. */
+  for (nextframe = frame = L->base-1; frame > bot; ) {
+    if (frame_gc(frame) == obj2gco(L))
+      level++;  /* Skip dummy frames. See lj_meta_call(). */
+    if (level-- == 0) {
+      *size = (int)(nextframe - frame);
+      return frame;  /* Level found. */
+    }
+    nextframe = frame;
+    if (frame_islua(frame)) {
+      frame = frame_prevl(frame);
+    } else {
+      if (frame_isvarg(frame))
+	level++;  /* Skip vararg pseudo-frame. */
+      frame = frame_prevd(frame);
+    }
+  }
+  *size = level;
+  return NULL;  /* Level not found. */
+}
+
+/* Invalid bytecode position. */
+#define NO_BCPOS	(~(BCPos)0)
+
+/* Return bytecode position for function/frame or NO_BCPOS. */
+static BCPos debug_framepc(lua_State *L, GCfunc *fn, cTValue *nextframe)
+{
+  const BCIns *ins;
+  GCproto *pt;
+  BCPos pos;
+  lua_assert(fn->c.gct == ~LJ_TFUNC || fn->c.gct == ~LJ_TTHREAD);
+  if (!isluafunc(fn)) {  /* Cannot derive a PC for non-Lua functions. */
+    return NO_BCPOS;
+  } else if (nextframe == NULL) {  /* Lua function on top. */
+    void *cf = cframe_raw(L->cframe);
+    if (cf == NULL || (char *)cframe_pc(cf) == (char *)cframe_L(cf))
+      return NO_BCPOS;
+    ins = cframe_pc(cf);  /* Only happens during error/hook handling. */
+  } else {
+    if (frame_islua(nextframe)) {
+      ins = frame_pc(nextframe);
+    } else if (frame_iscont(nextframe)) {
+      ins = frame_contpc(nextframe);
+    } else {
+      /* Lua function below errfunc/gc/hook: find cframe to get the PC. */
+      void *cf = cframe_raw(L->cframe);
+      TValue *f = L->base-1;
+      for (;;) {
+	if (cf == NULL)
+	  return NO_BCPOS;
+	while (cframe_nres(cf) < 0) {
+	  if (f >= restorestack(L, -cframe_nres(cf)))
+	    break;
+	  cf = cframe_raw(cframe_prev(cf));
+	  if (cf == NULL)
+	    return NO_BCPOS;
+	}
+	if (f < nextframe)
+	  break;
+	if (frame_islua(f)) {
+	  f = frame_prevl(f);
+	} else {
+	  if (frame_isc(f))
+	    cf = cframe_raw(cframe_prev(cf));
+	  f = frame_prevd(f);
+	}
+      }
+      ins = cframe_pc(cf);
+    }
+  }
+  pt = funcproto(fn);
+  pos = proto_bcpos(pt, ins) - 1;
+#if LJ_HASJIT
+  if (pos > pt->sizebc) {  /* Undo the effects of lj_trace_exit for JLOOP. */
+    GCtrace *T = (GCtrace *)((char *)(ins-1) - offsetof(GCtrace, startins));
+    lua_assert(bc_isret(bc_op(ins[-1])));
+    pos = proto_bcpos(pt, mref(T->startpc, const BCIns));
+  }
+#endif
+  return pos;
+}
+
+/* -- Line numbers -------------------------------------------------------- */
+
+/* Get line number for a bytecode position. */
+BCLine LJ_FASTCALL lj_debug_line(GCproto *pt, BCPos pc)
+{
+  const void *lineinfo = proto_lineinfo(pt);
+  if (pc <= pt->sizebc && lineinfo) {
+    BCLine first = pt->firstline;
+    if (pc == pt->sizebc) return first + pt->numline;
+    if (pc-- == 0) return first;
+    if (pt->numline < 256)
+      return first + (BCLine)((const uint8_t *)lineinfo)[pc];
+    else if (pt->numline < 65536)
+      return first + (BCLine)((const uint16_t *)lineinfo)[pc];
+    else
+      return first + (BCLine)((const uint32_t *)lineinfo)[pc];
+  }
+  return 0;
+}
+
+/* Get line number for function/frame. */
+static BCLine debug_frameline(lua_State *L, GCfunc *fn, cTValue *nextframe)
+{
+  BCPos pc = debug_framepc(L, fn, nextframe);
+  if (pc != NO_BCPOS) {
+    GCproto *pt = funcproto(fn);
+    lua_assert(pc <= pt->sizebc);
+    return lj_debug_line(pt, pc);
+  }
+  return -1;
+}
+
+/* -- Variable names ------------------------------------------------------ */
+
+/* Read ULEB128 value. */
+static uint32_t debug_read_uleb128(const uint8_t **pp)
+{
+  const uint8_t *p = *pp;
+  uint32_t v = *p++;
+  if (LJ_UNLIKELY(v >= 0x80)) {
+    int sh = 0;
+    v &= 0x7f;
+    do { v |= ((*p & 0x7f) << (sh += 7)); } while (*p++ >= 0x80);
+  }
+  *pp = p;
+  return v;
+}
+
+/* Get name of a local variable from slot number and PC. */
+static const char *debug_varname(const GCproto *pt, BCPos pc, BCReg slot)
+{
+  const uint8_t *p = proto_varinfo(pt);
+  if (p) {
+    BCPos lastpc = 0;
+    for (;;) {
+      const char *name = (const char *)p;
+      uint32_t vn = *p++;
+      BCPos startpc, endpc;
+      if (vn < VARNAME__MAX) {
+	if (vn == VARNAME_END) break;  /* End of varinfo. */
+      } else {
+	while (*p++) ;  /* Skip over variable name string. */
+      }
+      lastpc = startpc = lastpc + debug_read_uleb128(&p);
+      if (startpc > pc) break;
+      endpc = startpc + debug_read_uleb128(&p);
+      if (pc < endpc && slot-- == 0) {
+	if (vn < VARNAME__MAX) {
+#define VARNAMESTR(name, str)	str "\0"
+	  name = VARNAMEDEF(VARNAMESTR);
+#undef VARNAMESTR
+	  if (--vn) while (*name++ || --vn) ;
+	}
+	return name;
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Get name of local variable from 1-based slot number and function/frame. */
+static TValue *debug_localname(lua_State *L, const lua_Debug *ar,
+			       const char **name, BCReg slot1)
+{
+  uint32_t offset = (uint32_t)ar->i_ci & 0xffff;
+  uint32_t size = (uint32_t)ar->i_ci >> 16;
+  TValue *frame = tvref(L->stack) + offset;
+  TValue *nextframe = size ? frame + size : NULL;
+  GCfunc *fn = frame_func(frame);
+  BCPos pc = debug_framepc(L, fn, nextframe);
+  if (!nextframe) nextframe = L->top;
+  if ((int)slot1 < 0) {  /* Negative slot number is for varargs. */
+    if (pc != NO_BCPOS) {
+      GCproto *pt = funcproto(fn);
+      if ((pt->flags & PROTO_VARARG)) {
+	slot1 = pt->numparams + (BCReg)(-(int)slot1);
+	if (frame_isvarg(frame)) {  /* Vararg frame has been set up? (pc!=0) */
+	  nextframe = frame;
+	  frame = frame_prevd(frame);
+	}
+	if (frame + slot1 < nextframe) {
+	  *name = "(*vararg)";
+	  return frame+slot1;
+	}
+      }
+    }
+    return NULL;
+  }
+  if (pc != NO_BCPOS &&
+      (*name = debug_varname(funcproto(fn), pc, slot1-1)) != NULL)
+    ;
+  else if (slot1 > 0 && frame + slot1 < nextframe)
+    *name = "(*temporary)";
+  return frame+slot1;
+}
+
+/* Get name of upvalue. */
+const char *lj_debug_uvname(GCproto *pt, uint32_t idx)
+{
+  const uint8_t *p = proto_uvinfo(pt);
+  lua_assert(idx < pt->sizeuv);
+  if (!p) return "";
+  if (idx) while (*p++ || --idx) ;
+  return (const char *)p;
+}
+
+/* Get name and value of upvalue. */
+const char *lj_debug_uvnamev(cTValue *o, uint32_t idx, TValue **tvp)
+{
+  if (tvisfunc(o)) {
+    GCfunc *fn = funcV(o);
+    if (isluafunc(fn)) {
+      GCproto *pt = funcproto(fn);
+      if (idx < pt->sizeuv) {
+	*tvp = uvval(&gcref(fn->l.uvptr[idx])->uv);
+	return lj_debug_uvname(pt, idx);
+      }
+    } else {
+      if (idx < fn->c.nupvalues) {
+	*tvp = &fn->c.upvalue[idx];
+	return "";
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Deduce name of an object from slot number and PC. */
+const char *lj_debug_slotname(GCproto *pt, const BCIns *ip, BCReg slot,
+			      const char **name)
+{
+  const char *lname;
+restart:
+  lname = debug_varname(pt, proto_bcpos(pt, ip), slot);
+  if (lname != NULL) { *name = lname; return "local"; }
+  while (--ip > proto_bc(pt)) {
+    BCIns ins = *ip;
+    BCOp op = bc_op(ins);
+    BCReg ra = bc_a(ins);
+    if (bcmode_a(op) == BCMbase) {
+      if (slot >= ra && (op != BC_KNIL || slot <= bc_d(ins)))
+	return NULL;
+    } else if (bcmode_a(op) == BCMdst && ra == slot) {
+      switch (bc_op(ins)) {
+      case BC_MOV:
+	if (ra == slot) { slot = bc_d(ins); goto restart; }
+	break;
+      case BC_GGET:
+	*name = strdata(gco2str(proto_kgc(pt, ~(ptrdiff_t)bc_d(ins))));
+	return "global";
+      case BC_TGETS:
+	*name = strdata(gco2str(proto_kgc(pt, ~(ptrdiff_t)bc_c(ins))));
+	if (ip > proto_bc(pt)) {
+	  BCIns insp = ip[-1];
+	  if (bc_op(insp) == BC_MOV && bc_a(insp) == ra+1 &&
+	      bc_d(insp) == bc_b(ins))
+	    return "method";
+	}
+	return "field";
+      case BC_UGET:
+	*name = lj_debug_uvname(pt, bc_d(ins));
+	return "upvalue";
+      default:
+	return NULL;
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Deduce function name from caller of a frame. */
+const char *lj_debug_funcname(lua_State *L, TValue *frame, const char **name)
+{
+  TValue *pframe;
+  GCfunc *fn;
+  BCPos pc;
+  if (frame <= tvref(L->stack))
+    return NULL;
+  if (frame_isvarg(frame))
+    frame = frame_prevd(frame);
+  pframe = frame_prev(frame);
+  fn = frame_func(pframe);
+  pc = debug_framepc(L, fn, frame);
+  if (pc != NO_BCPOS) {
+    GCproto *pt = funcproto(fn);
+    const BCIns *ip = &proto_bc(pt)[check_exp(pc < pt->sizebc, pc)];
+    MMS mm = bcmode_mm(bc_op(*ip));
+    if (mm == MM_call) {
+      BCReg slot = bc_a(*ip);
+      if (bc_op(*ip) == BC_ITERC) slot -= 3;
+      return lj_debug_slotname(pt, ip, slot, name);
+    } else if (mm != MM__MAX) {
+      *name = strdata(mmname_str(G(L), mm));
+      return "metamethod";
+    }
+  }
+  return NULL;
+}
+
+/* -- Source code locations ----------------------------------------------- */
+
+/* Generate shortened source name. */
+void lj_debug_shortname(char *out, GCstr *str)
+{
+  const char *src = strdata(str);
+  if (*src == '=') {
+    strncpy(out, src+1, LUA_IDSIZE);  /* Remove first char. */
+    out[LUA_IDSIZE-1] = '\0';  /* Ensures null termination. */
+  } else if (*src == '@') {  /* Output "source", or "...source". */
+    size_t len = str->len-1;
+    src++;  /* Skip the `@' */
+    if (len >= LUA_IDSIZE) {
+      src += len-(LUA_IDSIZE-4);  /* Get last part of file name. */
+      *out++ = '.'; *out++ = '.'; *out++ = '.';
+    }
+    strcpy(out, src);
+  } else {  /* Output [string "string"]. */
+    size_t len;  /* Length, up to first control char. */
+    for (len = 0; len < LUA_IDSIZE-12; len++)
+      if (((const unsigned char *)src)[len] < ' ') break;
+    strcpy(out, "[string \""); out += 9;
+    if (src[len] != '\0') {  /* Must truncate? */
+      if (len > LUA_IDSIZE-15) len = LUA_IDSIZE-15;
+      strncpy(out, src, len); out += len;
+      strcpy(out, "..."); out += 3;
+    } else {
+      strcpy(out, src); out += len;
+    }
+    strcpy(out, "\"]");
+  }
+}
+
+/* Add current location of a frame to error message. */
+void lj_debug_addloc(lua_State *L, const char *msg,
+		     cTValue *frame, cTValue *nextframe)
+{
+  if (frame) {
+    GCfunc *fn = frame_func(frame);
+    if (isluafunc(fn)) {
+      BCLine line = debug_frameline(L, fn, nextframe);
+      if (line >= 0) {
+	char buf[LUA_IDSIZE];
+	lj_debug_shortname(buf, proto_chunkname(funcproto(fn)));
+	lj_str_pushf(L, "%s:%d: %s", buf, line, msg);
+	return;
+      }
+    }
+  }
+  lj_str_pushf(L, "%s", msg);
+}
+
+/* Push location string for a bytecode position to Lua stack. */
+void lj_debug_pushloc(lua_State *L, GCproto *pt, BCPos pc)
+{
+  GCstr *name = proto_chunkname(pt);
+  const char *s = strdata(name);
+  MSize i, len = name->len;
+  BCLine line = lj_debug_line(pt, pc);
+  if (*s == '@') {
+    s++; len--;
+    for (i = len; i > 0; i--)
+      if (s[i] == '/' || s[i] == '\\') {
+	s += i+1;
+	break;
+      }
+    lj_str_pushf(L, "%s:%d", s, line);
+  } else if (len > 40) {
+    lj_str_pushf(L, "%p:%d", pt, line);
+  } else if (*s == '=') {
+    lj_str_pushf(L, "%s:%d", s+1, line);
+  } else {
+    lj_str_pushf(L, "\"%s\":%d", s, line);
+  }
+}
+
+/* -- Public debug API ---------------------------------------------------- */
+
+/* lua_getupvalue() and lua_setupvalue() are in lj_api.c. */
+
+LUA_API const char *lua_getlocal(lua_State *L, const lua_Debug *ar, int n)
+{
+  const char *name = NULL;
+  if (ar) {
+    TValue *o = debug_localname(L, ar, &name, (BCReg)n);
+    if (name) {
+      copyTV(L, L->top, o);
+      incr_top(L);
+    }
+  } else if (tvisfunc(L->top-1) && isluafunc(funcV(L->top-1))) {
+    name = debug_varname(funcproto(funcV(L->top-1)), 0, (BCReg)n-1);
+  }
+  return name;
+}
+
+LUA_API const char *lua_setlocal(lua_State *L, const lua_Debug *ar, int n)
+{
+  const char *name = NULL;
+  TValue *o = debug_localname(L, ar, &name, (BCReg)n);
+  if (name)
+    copyTV(L, o, L->top-1);
+  L->top--;
+  return name;
+}
+
+int lj_debug_getinfo(lua_State *L, const char *what, lj_Debug *ar, int ext)
+{
+  int opt_f = 0, opt_L = 0;
+  TValue *frame = NULL;
+  TValue *nextframe = NULL;
+  GCfunc *fn;
+  if (*what == '>') {
+    TValue *func = L->top - 1;
+    api_check(L, tvisfunc(func));
+    fn = funcV(func);
+    L->top--;
+    what++;
+  } else {
+    uint32_t offset = (uint32_t)ar->i_ci & 0xffff;
+    uint32_t size = (uint32_t)ar->i_ci >> 16;
+    lua_assert(offset != 0);
+    frame = tvref(L->stack) + offset;
+    if (size) nextframe = frame + size;
+    lua_assert(frame <= tvref(L->maxstack) &&
+	       (!nextframe || nextframe <= tvref(L->maxstack)));
+    fn = frame_func(frame);
+    lua_assert(fn->c.gct == ~LJ_TFUNC);
+  }
+  for (; *what; what++) {
+    if (*what == 'S') {
+      if (isluafunc(fn)) {
+	GCproto *pt = funcproto(fn);
+	BCLine firstline = pt->firstline;
+	GCstr *name = proto_chunkname(pt);
+	ar->source = strdata(name);
+	lj_debug_shortname(ar->short_src, name);
+	ar->linedefined = (int)firstline;
+	ar->lastlinedefined = (int)(firstline + pt->numline);
+	ar->what = firstline ? "Lua" : "main";
+      } else {
+	ar->source = "=[C]";
+	ar->short_src[0] = '[';
+	ar->short_src[1] = 'C';
+	ar->short_src[2] = ']';
+	ar->short_src[3] = '\0';
+	ar->linedefined = -1;
+	ar->lastlinedefined = -1;
+	ar->what = "C";
+      }
+    } else if (*what == 'l') {
+      ar->currentline = frame ? debug_frameline(L, fn, nextframe) : -1;
+    } else if (*what == 'u') {
+      ar->nups = fn->c.nupvalues;
+      if (ext) {
+	if (isluafunc(fn)) {
+	  GCproto *pt = funcproto(fn);
+	  ar->nparams = pt->numparams;
+	  ar->isvararg = !!(pt->flags & PROTO_VARARG);
+	} else {
+	  ar->nparams = 0;
+	  ar->isvararg = 1;
+	}
+      }
+    } else if (*what == 'n') {
+      ar->namewhat = frame ? lj_debug_funcname(L, frame, &ar->name) : NULL;
+      if (ar->namewhat == NULL) {
+	ar->namewhat = "";
+	ar->name = NULL;
+      }
+    } else if (*what == 'f') {
+      opt_f = 1;
+    } else if (*what == 'L') {
+      opt_L = 1;
+    } else {
+      return 0;  /* Bad option. */
+    }
+  }
+  if (opt_f) {
+    setfuncV(L, L->top, fn);
+    incr_top(L);
+  }
+  if (opt_L) {
+    if (isluafunc(fn)) {
+      GCtab *t = lj_tab_new(L, 0, 0);
+      GCproto *pt = funcproto(fn);
+      const void *lineinfo = proto_lineinfo(pt);
+      if (lineinfo) {
+	BCLine first = pt->firstline;
+	int sz = pt->numline < 256 ? 1 : pt->numline < 65536 ? 2 : 4;
+	MSize i, szl = pt->sizebc-1;
+	for (i = 0; i < szl; i++) {
+	  BCLine line = first +
+	    (sz == 1 ? (BCLine)((const uint8_t *)lineinfo)[i] :
+	     sz == 2 ? (BCLine)((const uint16_t *)lineinfo)[i] :
+	     (BCLine)((const uint32_t *)lineinfo)[i]);
+	  setboolV(lj_tab_setint(L, t, line), 1);
+	}
+      }
+      settabV(L, L->top, t);
+    } else {
+      setnilV(L->top);
+    }
+    incr_top(L);
+  }
+  return 1;  /* Ok. */
+}
+
+LUA_API int lua_getinfo(lua_State *L, const char *what, lua_Debug *ar)
+{
+  return lj_debug_getinfo(L, what, (lj_Debug *)ar, 0);
+}
+
+LUA_API int lua_getstack(lua_State *L, int level, lua_Debug *ar)
+{
+  int size;
+  cTValue *frame = lj_debug_frame(L, level, &size);
+  if (frame) {
+    ar->i_ci = (size << 16) + (int)(frame - tvref(L->stack));
+    return 1;
+  } else {
+    ar->i_ci = level - size;
+    return 0;
+  }
+}
+
+/* Number of frames for the leading and trailing part of a traceback. */
+#define TRACEBACK_LEVELS1	12
+#define TRACEBACK_LEVELS2	10
+
+LUALIB_API void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
+				int level)
+{
+  int top = (int)(L->top - L->base);
+  int lim = TRACEBACK_LEVELS1;
+  lua_Debug ar;
+  if (msg) lua_pushfstring(L, "%s\n", msg);
+  lua_pushliteral(L, "stack traceback:");
+  while (lua_getstack(L1, level++, &ar)) {
+    GCfunc *fn;
+    if (level > lim) {
+      if (!lua_getstack(L1, level + TRACEBACK_LEVELS2, &ar)) {
+	level--;
+      } else {
+	lua_pushliteral(L, "\n\t...");
+	lua_getstack(L1, -10, &ar);
+	level = ar.i_ci - TRACEBACK_LEVELS2;
+      }
+      lim = 2147483647;
+      continue;
+    }
+    lua_getinfo(L1, "Snlf", &ar);
+    fn = funcV(L1->top-1); L1->top--;
+    if (isffunc(fn) && !*ar.namewhat)
+      lua_pushfstring(L, "\n\t[builtin#%d]:", fn->c.ffid);
+    else
+      lua_pushfstring(L, "\n\t%s:", ar.short_src);
+    if (ar.currentline > 0)
+      lua_pushfstring(L, "%d:", ar.currentline);
+    if (*ar.namewhat) {
+      lua_pushfstring(L, " in function " LUA_QS, ar.name);
+    } else {
+      if (*ar.what == 'm') {
+	lua_pushliteral(L, " in main chunk");
+      } else if (*ar.what == 'C') {
+	lua_pushfstring(L, " at %p", fn->c.f);
+      } else {
+	lua_pushfstring(L, " in function <%s:%d>",
+			ar.short_src, ar.linedefined);
+      }
+    }
+    if ((int)(L->top - L->base) - top >= 15)
+      lua_concat(L, (int)(L->top - L->base) - top);
+  }
+  lua_concat(L, (int)(L->top - L->base) - top);
+}
+
diff --git a/lib/luajit/src/lj_debug.h b/lib/luajit/src/lj_debug.h
new file mode 100644
index 00000000..bec6b4f3
--- /dev/null
+++ b/lib/luajit/src/lj_debug.h
@@ -0,0 +1,61 @@
+/*
+** Debugging and introspection.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_DEBUG_H
+#define _LJ_DEBUG_H
+
+#include "lj_obj.h"
+
+typedef struct lj_Debug {
+  /* Common fields. Must be in the same order as in lua.h. */
+  int event;
+  const char *name;
+  const char *namewhat;
+  const char *what;
+  const char *source;
+  int currentline;
+  int nups;
+  int linedefined;
+  int lastlinedefined;
+  char short_src[LUA_IDSIZE];
+  int i_ci;
+  /* Extended fields. Only valid if lj_debug_getinfo() is called with ext = 1.*/
+  int nparams;
+  int isvararg;
+} lj_Debug;
+
+LJ_FUNC cTValue *lj_debug_frame(lua_State *L, int level, int *size);
+LJ_FUNC BCLine LJ_FASTCALL lj_debug_line(GCproto *pt, BCPos pc);
+LJ_FUNC const char *lj_debug_uvname(GCproto *pt, uint32_t idx);
+LJ_FUNC const char *lj_debug_uvnamev(cTValue *o, uint32_t idx, TValue **tvp);
+LJ_FUNC const char *lj_debug_slotname(GCproto *pt, const BCIns *pc,
+				      BCReg slot, const char **name);
+LJ_FUNC const char *lj_debug_funcname(lua_State *L, TValue *frame,
+				      const char **name);
+LJ_FUNC void lj_debug_shortname(char *out, GCstr *str);
+LJ_FUNC void lj_debug_addloc(lua_State *L, const char *msg,
+			     cTValue *frame, cTValue *nextframe);
+LJ_FUNC void lj_debug_pushloc(lua_State *L, GCproto *pt, BCPos pc);
+LJ_FUNC int lj_debug_getinfo(lua_State *L, const char *what, lj_Debug *ar,
+			     int ext);
+
+/* Fixed internal variable names. */
+#define VARNAMEDEF(_) \
+  _(FOR_IDX, "(for index)") \
+  _(FOR_STOP, "(for limit)") \
+  _(FOR_STEP, "(for step)") \
+  _(FOR_GEN, "(for generator)") \
+  _(FOR_STATE, "(for state)") \
+  _(FOR_CTL, "(for control)")
+
+enum {
+  VARNAME_END,
+#define VARNAMEENUM(name, str)	VARNAME_##name,
+  VARNAMEDEF(VARNAMEENUM)
+#undef VARNAMEENUM
+  VARNAME__MAX
+};
+
+#endif
diff --git a/lib/luajit/src/lj_def.h b/lib/luajit/src/lj_def.h
new file mode 100644
index 00000000..3c43be78
--- /dev/null
+++ b/lib/luajit/src/lj_def.h
@@ -0,0 +1,349 @@
+/*
+** LuaJIT common internal definitions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_DEF_H
+#define _LJ_DEF_H
+
+#include "lua.h"
+
+#if defined(_MSC_VER)
+/* MSVC is stuck in the last century and doesn't have C99's stdint.h. */
+typedef __int8 int8_t;
+typedef __int16 int16_t;
+typedef __int32 int32_t;
+typedef __int64 int64_t;
+typedef unsigned __int8 uint8_t;
+typedef unsigned __int16 uint16_t;
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+#ifdef _WIN64
+typedef __int64 intptr_t;
+typedef unsigned __int64 uintptr_t;
+#else
+typedef __int32 intptr_t;
+typedef unsigned __int32 uintptr_t;
+#endif
+#elif defined(__symbian__)
+/* Cough. */
+typedef signed char int8_t;
+typedef short int int16_t;
+typedef int int32_t;
+typedef long long int64_t;
+typedef unsigned char uint8_t;
+typedef unsigned short int uint16_t;
+typedef unsigned int uint32_t;
+typedef unsigned long long uint64_t;
+typedef int intptr_t;
+typedef unsigned int uintptr_t;
+#else
+#include <stdint.h>
+#endif
+
+/* Needed everywhere. */
+#include <string.h>
+#include <stdlib.h>
+
+/* Various VM limits. */
+#define LJ_MAX_MEM	0x7fffff00	/* Max. total memory allocation. */
+#define LJ_MAX_ALLOC	LJ_MAX_MEM	/* Max. individual allocation length. */
+#define LJ_MAX_STR	LJ_MAX_MEM	/* Max. string length. */
+#define LJ_MAX_UDATA	LJ_MAX_MEM	/* Max. userdata length. */
+
+#define LJ_MAX_STRTAB	(1<<26)		/* Max. string table size. */
+#define LJ_MAX_HBITS	26		/* Max. hash bits. */
+#define LJ_MAX_ABITS	28		/* Max. bits of array key. */
+#define LJ_MAX_ASIZE	((1<<(LJ_MAX_ABITS-1))+1)  /* Max. array part size. */
+#define LJ_MAX_COLOSIZE	16		/* Max. elems for colocated array. */
+
+#define LJ_MAX_LINE	LJ_MAX_MEM	/* Max. source code line number. */
+#define LJ_MAX_XLEVEL	200		/* Max. syntactic nesting level. */
+#define LJ_MAX_BCINS	(1<<26)		/* Max. # of bytecode instructions. */
+#define LJ_MAX_SLOTS	250		/* Max. # of slots in a Lua func. */
+#define LJ_MAX_LOCVAR	200		/* Max. # of local variables. */
+#define LJ_MAX_UPVAL	60		/* Max. # of upvalues. */
+
+#define LJ_MAX_IDXCHAIN	100		/* __index/__newindex chain limit. */
+#define LJ_STACK_EXTRA	5		/* Extra stack space (metamethods). */
+
+#define LJ_NUM_CBPAGE	1		/* Number of FFI callback pages. */
+
+/* Minimum table/buffer sizes. */
+#define LJ_MIN_GLOBAL	6		/* Min. global table size (hbits). */
+#define LJ_MIN_REGISTRY	2		/* Min. registry size (hbits). */
+#define LJ_MIN_STRTAB	256		/* Min. string table size (pow2). */
+#define LJ_MIN_SBUF	32		/* Min. string buffer length. */
+#define LJ_MIN_VECSZ	8		/* Min. size for growable vectors. */
+#define LJ_MIN_IRSZ	32		/* Min. size for growable IR. */
+#define LJ_MIN_K64SZ	16		/* Min. size for chained K64Array. */
+
+/* JIT compiler limits. */
+#define LJ_MAX_JSLOTS	250		/* Max. # of stack slots for a trace. */
+#define LJ_MAX_PHI	64		/* Max. # of PHIs for a loop. */
+#define LJ_MAX_EXITSTUBGR	16	/* Max. # of exit stub groups. */
+
+/* Various macros. */
+#ifndef UNUSED
+#define UNUSED(x)	((void)(x))	/* to avoid warnings */
+#endif
+
+#define U64x(hi, lo)	(((uint64_t)0x##hi << 32) + (uint64_t)0x##lo)
+#define i32ptr(p)	((int32_t)(intptr_t)(void *)(p))
+#define u32ptr(p)	((uint32_t)(intptr_t)(void *)(p))
+
+#define checki8(x)	((x) == (int32_t)(int8_t)(x))
+#define checku8(x)	((x) == (int32_t)(uint8_t)(x))
+#define checki16(x)	((x) == (int32_t)(int16_t)(x))
+#define checku16(x)	((x) == (int32_t)(uint16_t)(x))
+#define checki32(x)	((x) == (int32_t)(x))
+#define checku32(x)	((x) == (uint32_t)(x))
+#define checkptr32(x)	((uintptr_t)(x) == (uint32_t)(uintptr_t)(x))
+
+/* Every half-decent C compiler transforms this into a rotate instruction. */
+#define lj_rol(x, n)	(((x)<<(n)) | ((x)>>(-(int)(n)&(8*sizeof(x)-1))))
+#define lj_ror(x, n)	(((x)<<(-(int)(n)&(8*sizeof(x)-1))) | ((x)>>(n)))
+
+/* A really naive Bloom filter. But sufficient for our needs. */
+typedef uintptr_t BloomFilter;
+#define BLOOM_MASK	(8*sizeof(BloomFilter) - 1)
+#define bloombit(x)	((uintptr_t)1 << ((x) & BLOOM_MASK))
+#define bloomset(b, x)	((b) |= bloombit((x)))
+#define bloomtest(b, x)	((b) & bloombit((x)))
+
+#if defined(__GNUC__)
+
+#define LJ_NORET	__attribute__((noreturn))
+#define LJ_ALIGN(n)	__attribute__((aligned(n)))
+#define LJ_INLINE	inline
+#define LJ_AINLINE	inline __attribute__((always_inline))
+#define LJ_NOINLINE	__attribute__((noinline))
+
+#if defined(__ELF__) || defined(__MACH__)
+#if !((defined(__sun__) && defined(__svr4__)) || defined(__CELLOS_LV2__))
+#define LJ_NOAPI	extern __attribute__((visibility("hidden")))
+#endif
+#endif
+
+/* Note: it's only beneficial to use fastcall on x86 and then only for up to
+** two non-FP args. The amalgamated compile covers all LJ_FUNC cases. Only
+** indirect calls and related tail-called C functions are marked as fastcall.
+*/
+#if defined(__i386__)
+#define LJ_FASTCALL	__attribute__((fastcall))
+#endif
+
+#define LJ_LIKELY(x)	__builtin_expect(!!(x), 1)
+#define LJ_UNLIKELY(x)	__builtin_expect(!!(x), 0)
+
+#define lj_ffs(x)	((uint32_t)__builtin_ctz(x))
+/* Don't ask ... */
+#if defined(__INTEL_COMPILER) && (defined(__i386__) || defined(__x86_64__))
+static LJ_AINLINE uint32_t lj_fls(uint32_t x)
+{
+  uint32_t r; __asm__("bsrl %1, %0" : "=r" (r) : "rm" (x) : "cc"); return r;
+}
+#else
+#define lj_fls(x)	((uint32_t)(__builtin_clz(x)^31))
+#endif
+
+#if defined(__arm__)
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  uint32_t r;
+#if __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6T2__ || __ARM_ARCH_6Z__ ||\
+    __ARM_ARCH_6ZK__ || __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__
+  __asm__("rev %0, %1" : "=r" (r) : "r" (x));
+  return r;
+#else
+#ifdef __thumb__
+  r = x ^ lj_ror(x, 16);
+#else
+  __asm__("eor %0, %1, %1, ror #16" : "=r" (r) : "r" (x));
+#endif
+  return ((r & 0xff00ffffu) >> 8) ^ lj_ror(x, 8);
+#endif
+}
+
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return ((uint64_t)lj_bswap((uint32_t)x)<<32) | lj_bswap((uint32_t)(x>>32));
+}
+#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  return (uint32_t)__builtin_bswap32((int32_t)x);
+}
+
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return (uint64_t)__builtin_bswap64((int64_t)x);
+}
+#elif defined(__i386__) || defined(__x86_64__)
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  uint32_t r; __asm__("bswap %0" : "=r" (r) : "0" (x)); return r;
+}
+
+#if defined(__i386__)
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return ((uint64_t)lj_bswap((uint32_t)x)<<32) | lj_bswap((uint32_t)(x>>32));
+}
+#else
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  uint64_t r; __asm__("bswap %0" : "=r" (r) : "0" (x)); return r;
+}
+#endif
+#else
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  return (x << 24) | ((x & 0xff00) << 8) | ((x >> 8) & 0xff00) | (x >> 24);
+}
+
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return (uint64_t)lj_bswap((uint32_t)(x >> 32)) |
+	 ((uint64_t)lj_bswap((uint32_t)x) << 32);
+}
+#endif
+
+typedef union __attribute__((packed)) Unaligned16 {
+  uint16_t u;
+  uint8_t b[2];
+} Unaligned16;
+
+typedef union __attribute__((packed)) Unaligned32 {
+  uint32_t u;
+  uint8_t b[4];
+} Unaligned32;
+
+/* Unaligned load of uint16_t. */
+static LJ_AINLINE uint16_t lj_getu16(const void *p)
+{
+  return ((const Unaligned16 *)p)->u;
+}
+
+/* Unaligned load of uint32_t. */
+static LJ_AINLINE uint32_t lj_getu32(const void *p)
+{
+  return ((const Unaligned32 *)p)->u;
+}
+
+#elif defined(_MSC_VER)
+
+#define LJ_NORET	__declspec(noreturn)
+#define LJ_ALIGN(n)	__declspec(align(n))
+#define LJ_INLINE	__inline
+#define LJ_AINLINE	__forceinline
+#define LJ_NOINLINE	__declspec(noinline)
+#if defined(_M_IX86)
+#define LJ_FASTCALL	__fastcall
+#endif
+
+#ifdef _M_PPC
+unsigned int _CountLeadingZeros(long);
+#pragma intrinsic(_CountLeadingZeros)
+static LJ_AINLINE uint32_t lj_fls(uint32_t x)
+{
+  return _CountLeadingZeros(x) ^ 31;
+}
+#else
+unsigned char _BitScanForward(uint32_t *, unsigned long);
+unsigned char _BitScanReverse(uint32_t *, unsigned long);
+#pragma intrinsic(_BitScanForward)
+#pragma intrinsic(_BitScanReverse)
+
+static LJ_AINLINE uint32_t lj_ffs(uint32_t x)
+{
+  uint32_t r; _BitScanForward(&r, x); return r;
+}
+
+static LJ_AINLINE uint32_t lj_fls(uint32_t x)
+{
+  uint32_t r; _BitScanReverse(&r, x); return r;
+}
+#endif
+
+unsigned long _byteswap_ulong(unsigned long);
+uint64_t _byteswap_uint64(uint64_t);
+#define lj_bswap(x)	(_byteswap_ulong((x)))
+#define lj_bswap64(x)	(_byteswap_uint64((x)))
+
+#if defined(_M_PPC) && defined(LUAJIT_NO_UNALIGNED)
+/*
+** Replacement for unaligned loads on Xbox 360. Disabled by default since it's
+** usually more costly than the occasional stall when crossing a cache-line.
+*/
+static LJ_AINLINE uint16_t lj_getu16(const void *v)
+{
+  const uint8_t *p = (const uint8_t *)v;
+  return (uint16_t)((p[0]<<8) | p[1]);
+}
+static LJ_AINLINE uint32_t lj_getu32(const void *v)
+{
+  const uint8_t *p = (const uint8_t *)v;
+  return (uint32_t)((p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3]);
+}
+#else
+/* Unaligned loads are generally ok on x86/x64. */
+#define lj_getu16(p)	(*(uint16_t *)(p))
+#define lj_getu32(p)	(*(uint32_t *)(p))
+#endif
+
+#else
+#error "missing defines for your compiler"
+#endif
+
+/* Optional defines. */
+#ifndef LJ_FASTCALL
+#define LJ_FASTCALL
+#endif
+#ifndef LJ_NORET
+#define LJ_NORET
+#endif
+#ifndef LJ_NOAPI
+#define LJ_NOAPI	extern
+#endif
+#ifndef LJ_LIKELY
+#define LJ_LIKELY(x)	(x)
+#define LJ_UNLIKELY(x)	(x)
+#endif
+
+/* Attributes for internal functions. */
+#define LJ_DATA		LJ_NOAPI
+#define LJ_DATADEF
+#define LJ_ASMF		LJ_NOAPI
+#define LJ_FUNCA	LJ_NOAPI
+#if defined(ljamalg_c)
+#define LJ_FUNC		static
+#else
+#define LJ_FUNC		LJ_NOAPI
+#endif
+#define LJ_FUNC_NORET	LJ_FUNC LJ_NORET
+#define LJ_FUNCA_NORET	LJ_FUNCA LJ_NORET
+#define LJ_ASMF_NORET	LJ_ASMF LJ_NORET
+
+/* Runtime assertions. */
+#ifdef lua_assert
+#define check_exp(c, e)		(lua_assert(c), (e))
+#define api_check(l, e)		lua_assert(e)
+#else
+#define lua_assert(c)		((void)0)
+#define check_exp(c, e)		(e)
+#define api_check		luai_apicheck
+#endif
+
+/* Static assertions. */
+#define LJ_ASSERT_NAME2(name, line)	name ## line
+#define LJ_ASSERT_NAME(line)		LJ_ASSERT_NAME2(lj_assert_, line)
+#ifdef __COUNTER__
+#define LJ_STATIC_ASSERT(cond) \
+  extern void LJ_ASSERT_NAME(__COUNTER__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
+#else
+#define LJ_STATIC_ASSERT(cond) \
+  extern void LJ_ASSERT_NAME(__LINE__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_dispatch.c b/lib/luajit/src/lj_dispatch.c
new file mode 100644
index 00000000..58d6c3e2
--- /dev/null
+++ b/lib/luajit/src/lj_dispatch.c
@@ -0,0 +1,494 @@
+/*
+** Instruction dispatch handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_dispatch_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_func.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_debug.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_ff.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#endif
+#if LJ_HASFFI
+#include "lj_ccallback.h"
+#endif
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "luajit.h"
+
+/* Bump GG_NUM_ASMFF in lj_dispatch.h as needed. Ugly. */
+LJ_STATIC_ASSERT(GG_NUM_ASMFF == FF_NUM_ASMFUNC);
+
+/* -- Dispatch table management ------------------------------------------- */
+
+#if LJ_TARGET_MIPS
+#include <math.h>
+LJ_FUNCA_NORET void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L,
+							  lua_State *co);
+
+#define GOTFUNC(name)	(ASMFunction)name,
+static const ASMFunction dispatch_got[] = {
+  GOTDEF(GOTFUNC)
+};
+#undef GOTFUNC
+#endif
+
+/* Initialize instruction dispatch table and hot counters. */
+void lj_dispatch_init(GG_State *GG)
+{
+  uint32_t i;
+  ASMFunction *disp = GG->dispatch;
+  for (i = 0; i < GG_LEN_SDISP; i++)
+    disp[GG_LEN_DDISP+i] = disp[i] = makeasmfunc(lj_bc_ofs[i]);
+  for (i = GG_LEN_SDISP; i < GG_LEN_DDISP; i++)
+    disp[i] = makeasmfunc(lj_bc_ofs[i]);
+  /* The JIT engine is off by default. luaopen_jit() turns it on. */
+  disp[BC_FORL] = disp[BC_IFORL];
+  disp[BC_ITERL] = disp[BC_IITERL];
+  disp[BC_LOOP] = disp[BC_ILOOP];
+  disp[BC_FUNCF] = disp[BC_IFUNCF];
+  disp[BC_FUNCV] = disp[BC_IFUNCV];
+  GG->g.bc_cfunc_ext = GG->g.bc_cfunc_int = BCINS_AD(BC_FUNCC, LUA_MINSTACK, 0);
+  for (i = 0; i < GG_NUM_ASMFF; i++)
+    GG->bcff[i] = BCINS_AD(BC__MAX+i, 0, 0);
+#if LJ_TARGET_MIPS
+  memcpy(GG->got, dispatch_got, LJ_GOT__MAX*4);
+#endif
+}
+
+#if LJ_HASJIT
+/* Initialize hotcount table. */
+void lj_dispatch_init_hotcount(global_State *g)
+{
+  int32_t hotloop = G2J(g)->param[JIT_P_hotloop];
+  HotCount start = (HotCount)(hotloop*HOTCOUNT_LOOP - 1);
+  HotCount *hotcount = G2GG(g)->hotcount;
+  uint32_t i;
+  for (i = 0; i < HOTCOUNT_SIZE; i++)
+    hotcount[i] = start;
+}
+#endif
+
+/* Internal dispatch mode bits. */
+#define DISPMODE_JIT	0x01	/* JIT compiler on. */
+#define DISPMODE_REC	0x02	/* Recording active. */
+#define DISPMODE_INS	0x04	/* Override instruction dispatch. */
+#define DISPMODE_CALL	0x08	/* Override call dispatch. */
+#define DISPMODE_RET	0x10	/* Override return dispatch. */
+
+/* Update dispatch table depending on various flags. */
+void lj_dispatch_update(global_State *g)
+{
+  uint8_t oldmode = g->dispatchmode;
+  uint8_t mode = 0;
+#if LJ_HASJIT
+  mode |= (G2J(g)->flags & JIT_F_ON) ? DISPMODE_JIT : 0;
+  mode |= G2J(g)->state != LJ_TRACE_IDLE ?
+	    (DISPMODE_REC|DISPMODE_INS|DISPMODE_CALL) : 0;
+#endif
+  mode |= (g->hookmask & (LUA_MASKLINE|LUA_MASKCOUNT)) ? DISPMODE_INS : 0;
+  mode |= (g->hookmask & LUA_MASKCALL) ? DISPMODE_CALL : 0;
+  mode |= (g->hookmask & LUA_MASKRET) ? DISPMODE_RET : 0;
+  if (oldmode != mode) {  /* Mode changed? */
+    ASMFunction *disp = G2GG(g)->dispatch;
+    ASMFunction f_forl, f_iterl, f_loop, f_funcf, f_funcv;
+    g->dispatchmode = mode;
+
+    /* Hotcount if JIT is on, but not while recording. */
+    if ((mode & (DISPMODE_JIT|DISPMODE_REC)) == DISPMODE_JIT) {
+      f_forl = makeasmfunc(lj_bc_ofs[BC_FORL]);
+      f_iterl = makeasmfunc(lj_bc_ofs[BC_ITERL]);
+      f_loop = makeasmfunc(lj_bc_ofs[BC_LOOP]);
+      f_funcf = makeasmfunc(lj_bc_ofs[BC_FUNCF]);
+      f_funcv = makeasmfunc(lj_bc_ofs[BC_FUNCV]);
+    } else {  /* Otherwise use the non-hotcounting instructions. */
+      f_forl = disp[GG_LEN_DDISP+BC_IFORL];
+      f_iterl = disp[GG_LEN_DDISP+BC_IITERL];
+      f_loop = disp[GG_LEN_DDISP+BC_ILOOP];
+      f_funcf = makeasmfunc(lj_bc_ofs[BC_IFUNCF]);
+      f_funcv = makeasmfunc(lj_bc_ofs[BC_IFUNCV]);
+    }
+    /* Init static counting instruction dispatch first (may be copied below). */
+    disp[GG_LEN_DDISP+BC_FORL] = f_forl;
+    disp[GG_LEN_DDISP+BC_ITERL] = f_iterl;
+    disp[GG_LEN_DDISP+BC_LOOP] = f_loop;
+
+    /* Set dynamic instruction dispatch. */
+    if ((oldmode ^ mode) & (DISPMODE_REC|DISPMODE_INS)) {
+      /* Need to update the whole table. */
+      if (!(mode & (DISPMODE_REC|DISPMODE_INS))) {  /* No ins dispatch? */
+	/* Copy static dispatch table to dynamic dispatch table. */
+	memcpy(&disp[0], &disp[GG_LEN_DDISP], GG_LEN_SDISP*sizeof(ASMFunction));
+	/* Overwrite with dynamic return dispatch. */
+	if ((mode & DISPMODE_RET)) {
+	  disp[BC_RETM] = lj_vm_rethook;
+	  disp[BC_RET] = lj_vm_rethook;
+	  disp[BC_RET0] = lj_vm_rethook;
+	  disp[BC_RET1] = lj_vm_rethook;
+	}
+      } else {
+	/* The recording dispatch also checks for hooks. */
+	ASMFunction f = (mode & DISPMODE_REC) ? lj_vm_record : lj_vm_inshook;
+	uint32_t i;
+	for (i = 0; i < GG_LEN_SDISP; i++)
+	  disp[i] = f;
+      }
+    } else if (!(mode & (DISPMODE_REC|DISPMODE_INS))) {
+      /* Otherwise set dynamic counting ins. */
+      disp[BC_FORL] = f_forl;
+      disp[BC_ITERL] = f_iterl;
+      disp[BC_LOOP] = f_loop;
+      /* Set dynamic return dispatch. */
+      if ((mode & DISPMODE_RET)) {
+	disp[BC_RETM] = lj_vm_rethook;
+	disp[BC_RET] = lj_vm_rethook;
+	disp[BC_RET0] = lj_vm_rethook;
+	disp[BC_RET1] = lj_vm_rethook;
+      } else {
+	disp[BC_RETM] = disp[GG_LEN_DDISP+BC_RETM];
+	disp[BC_RET] = disp[GG_LEN_DDISP+BC_RET];
+	disp[BC_RET0] = disp[GG_LEN_DDISP+BC_RET0];
+	disp[BC_RET1] = disp[GG_LEN_DDISP+BC_RET1];
+      }
+    }
+
+    /* Set dynamic call dispatch. */
+    if ((oldmode ^ mode) & DISPMODE_CALL) {  /* Update the whole table? */
+      uint32_t i;
+      if ((mode & DISPMODE_CALL) == 0) {  /* No call hooks? */
+	for (i = GG_LEN_SDISP; i < GG_LEN_DDISP; i++)
+	  disp[i] = makeasmfunc(lj_bc_ofs[i]);
+      } else {
+	for (i = GG_LEN_SDISP; i < GG_LEN_DDISP; i++)
+	  disp[i] = lj_vm_callhook;
+      }
+    }
+    if (!(mode & DISPMODE_CALL)) {  /* Overwrite dynamic counting ins. */
+      disp[BC_FUNCF] = f_funcf;
+      disp[BC_FUNCV] = f_funcv;
+    }
+
+#if LJ_HASJIT
+    /* Reset hotcounts for JIT off to on transition. */
+    if ((mode & DISPMODE_JIT) && !(oldmode & DISPMODE_JIT))
+      lj_dispatch_init_hotcount(g);
+#endif
+  }
+}
+
+/* -- JIT mode setting ---------------------------------------------------- */
+
+#if LJ_HASJIT
+/* Set JIT mode for a single prototype. */
+static void setptmode(global_State *g, GCproto *pt, int mode)
+{
+  if ((mode & LUAJIT_MODE_ON)) {  /* (Re-)enable JIT compilation. */
+    pt->flags &= ~PROTO_NOJIT;
+    lj_trace_reenableproto(pt);  /* Unpatch all ILOOP etc. bytecodes. */
+  } else {  /* Flush and/or disable JIT compilation. */
+    if (!(mode & LUAJIT_MODE_FLUSH))
+      pt->flags |= PROTO_NOJIT;
+    lj_trace_flushproto(g, pt);  /* Flush all traces of prototype. */
+  }
+}
+
+/* Recursively set the JIT mode for all children of a prototype. */
+static void setptmode_all(global_State *g, GCproto *pt, int mode)
+{
+  ptrdiff_t i;
+  if (!(pt->flags & PROTO_CHILD)) return;
+  for (i = -(ptrdiff_t)pt->sizekgc; i < 0; i++) {
+    GCobj *o = proto_kgc(pt, i);
+    if (o->gch.gct == ~LJ_TPROTO) {
+      setptmode(g, gco2pt(o), mode);
+      setptmode_all(g, gco2pt(o), mode);
+    }
+  }
+}
+#endif
+
+/* Public API function: control the JIT engine. */
+int luaJIT_setmode(lua_State *L, int idx, int mode)
+{
+  global_State *g = G(L);
+  int mm = mode & LUAJIT_MODE_MASK;
+  lj_trace_abort(g);  /* Abort recording on any state change. */
+  /* Avoid pulling the rug from under our own feet. */
+  if ((g->hookmask & HOOK_GC))
+    lj_err_caller(L, LJ_ERR_NOGCMM);
+  switch (mm) {
+#if LJ_HASJIT
+  case LUAJIT_MODE_ENGINE:
+    if ((mode & LUAJIT_MODE_FLUSH)) {
+      lj_trace_flushall(L);
+    } else {
+      if (!(mode & LUAJIT_MODE_ON))
+	G2J(g)->flags &= ~(uint32_t)JIT_F_ON;
+#if LJ_TARGET_X86ORX64
+      else if ((G2J(g)->flags & JIT_F_SSE2))
+	G2J(g)->flags |= (uint32_t)JIT_F_ON;
+      else
+	return 0;  /* Don't turn on JIT compiler without SSE2 support. */
+#else
+      else
+	G2J(g)->flags |= (uint32_t)JIT_F_ON;
+#endif
+      lj_dispatch_update(g);
+    }
+    break;
+  case LUAJIT_MODE_FUNC:
+  case LUAJIT_MODE_ALLFUNC:
+  case LUAJIT_MODE_ALLSUBFUNC: {
+    cTValue *tv = idx == 0 ? frame_prev(L->base-1) :
+		  idx > 0 ? L->base + (idx-1) : L->top + idx;
+    GCproto *pt;
+    if ((idx == 0 || tvisfunc(tv)) && isluafunc(&gcval(tv)->fn))
+      pt = funcproto(&gcval(tv)->fn);  /* Cannot use funcV() for frame slot. */
+    else if (tvisproto(tv))
+      pt = protoV(tv);
+    else
+      return 0;  /* Failed. */
+    if (mm != LUAJIT_MODE_ALLSUBFUNC)
+      setptmode(g, pt, mode);
+    if (mm != LUAJIT_MODE_FUNC)
+      setptmode_all(g, pt, mode);
+    break;
+    }
+  case LUAJIT_MODE_TRACE:
+    if (!(mode & LUAJIT_MODE_FLUSH))
+      return 0;  /* Failed. */
+    lj_trace_flush(G2J(g), idx);
+    break;
+#else
+  case LUAJIT_MODE_ENGINE:
+  case LUAJIT_MODE_FUNC:
+  case LUAJIT_MODE_ALLFUNC:
+  case LUAJIT_MODE_ALLSUBFUNC:
+    UNUSED(idx);
+    if ((mode & LUAJIT_MODE_ON))
+      return 0;  /* Failed. */
+    break;
+#endif
+  case LUAJIT_MODE_WRAPCFUNC:
+    if ((mode & LUAJIT_MODE_ON)) {
+      if (idx != 0) {
+	cTValue *tv = idx > 0 ? L->base + (idx-1) : L->top + idx;
+	if (tvislightud(tv))
+	  g->wrapf = (lua_CFunction)lightudV(tv);
+	else
+	  return 0;  /* Failed. */
+      } else {
+	return 0;  /* Failed. */
+      }
+      g->bc_cfunc_ext = BCINS_AD(BC_FUNCCW, 0, 0);
+    } else {
+      g->bc_cfunc_ext = BCINS_AD(BC_FUNCC, 0, 0);
+    }
+    break;
+  default:
+    return 0;  /* Failed. */
+  }
+  return 1;  /* OK. */
+}
+
+/* Enforce (dynamic) linker error for version mismatches. See luajit.c. */
+LUA_API void LUAJIT_VERSION_SYM(void)
+{
+}
+
+/* -- Hooks --------------------------------------------------------------- */
+
+/* This function can be called asynchronously (e.g. during a signal). */
+LUA_API int lua_sethook(lua_State *L, lua_Hook func, int mask, int count)
+{
+  global_State *g = G(L);
+  mask &= HOOK_EVENTMASK;
+  if (func == NULL || mask == 0) { mask = 0; func = NULL; }  /* Consistency. */
+  g->hookf = func;
+  g->hookcount = g->hookcstart = (int32_t)count;
+  g->hookmask = (uint8_t)((g->hookmask & ~HOOK_EVENTMASK) | mask);
+  lj_trace_abort(g);  /* Abort recording on any hook change. */
+  lj_dispatch_update(g);
+  return 1;
+}
+
+LUA_API lua_Hook lua_gethook(lua_State *L)
+{
+  return G(L)->hookf;
+}
+
+LUA_API int lua_gethookmask(lua_State *L)
+{
+  return G(L)->hookmask & HOOK_EVENTMASK;
+}
+
+LUA_API int lua_gethookcount(lua_State *L)
+{
+  return (int)G(L)->hookcstart;
+}
+
+/* Call a hook. */
+static void callhook(lua_State *L, int event, BCLine line)
+{
+  global_State *g = G(L);
+  lua_Hook hookf = g->hookf;
+  if (hookf && !hook_active(g)) {
+    lua_Debug ar;
+    lj_trace_abort(g);  /* Abort recording on any hook call. */
+    ar.event = event;
+    ar.currentline = line;
+    /* Top frame, nextframe = NULL. */
+    ar.i_ci = (int)((L->base-1) - tvref(L->stack));
+    lj_state_checkstack(L, 1+LUA_MINSTACK);
+    hook_enter(g);
+    hookf(L, &ar);
+    lua_assert(hook_active(g));
+    hook_leave(g);
+  }
+}
+
+/* -- Dispatch callbacks -------------------------------------------------- */
+
+/* Calculate number of used stack slots in the current frame. */
+static BCReg cur_topslot(GCproto *pt, const BCIns *pc, uint32_t nres)
+{
+  BCIns ins = pc[-1];
+  if (bc_op(ins) == BC_UCLO)
+    ins = pc[bc_j(ins)];
+  switch (bc_op(ins)) {
+  case BC_CALLM: case BC_CALLMT: return bc_a(ins) + bc_c(ins) + nres-1+1;
+  case BC_RETM: return bc_a(ins) + bc_d(ins) + nres-1;
+  case BC_TSETM: return bc_a(ins) + nres-1;
+  default: return pt->framesize;
+  }
+}
+
+/* Instruction dispatch. Used by instr/line/return hooks or when recording. */
+void LJ_FASTCALL lj_dispatch_ins(lua_State *L, const BCIns *pc)
+{
+  ERRNO_SAVE
+  GCfunc *fn = curr_func(L);
+  GCproto *pt = funcproto(fn);
+  void *cf = cframe_raw(L->cframe);
+  const BCIns *oldpc = cframe_pc(cf);
+  global_State *g = G(L);
+  BCReg slots;
+  setcframe_pc(cf, pc);
+  slots = cur_topslot(pt, pc, cframe_multres_n(cf));
+  L->top = L->base + slots;  /* Fix top. */
+#if LJ_HASJIT
+  {
+    jit_State *J = G2J(g);
+    if (J->state != LJ_TRACE_IDLE) {
+#ifdef LUA_USE_ASSERT
+      ptrdiff_t delta = L->top - L->base;
+#endif
+      J->L = L;
+      lj_trace_ins(J, pc-1);  /* The interpreter bytecode PC is offset by 1. */
+      lua_assert(L->top - L->base == delta);
+    }
+  }
+#endif
+  if ((g->hookmask & LUA_MASKCOUNT) && g->hookcount == 0) {
+    g->hookcount = g->hookcstart;
+    callhook(L, LUA_HOOKCOUNT, -1);
+    L->top = L->base + slots;  /* Fix top again. */
+  }
+  if ((g->hookmask & LUA_MASKLINE)) {
+    BCPos npc = proto_bcpos(pt, pc) - 1;
+    BCPos opc = proto_bcpos(pt, oldpc) - 1;
+    BCLine line = lj_debug_line(pt, npc);
+    if (pc <= oldpc || opc >= pt->sizebc || line != lj_debug_line(pt, opc)) {
+      callhook(L, LUA_HOOKLINE, line);
+      L->top = L->base + slots;  /* Fix top again. */
+    }
+  }
+  if ((g->hookmask & LUA_MASKRET) && bc_isret(bc_op(pc[-1])))
+    callhook(L, LUA_HOOKRET, -1);
+  ERRNO_RESTORE
+}
+
+/* Initialize call. Ensure stack space and return # of missing parameters. */
+static int call_init(lua_State *L, GCfunc *fn)
+{
+  if (isluafunc(fn)) {
+    GCproto *pt = funcproto(fn);
+    int numparams = pt->numparams;
+    int gotparams = (int)(L->top - L->base);
+    int need = pt->framesize;
+    if ((pt->flags & PROTO_VARARG)) need += 1+gotparams;
+    lj_state_checkstack(L, (MSize)need);
+    numparams -= gotparams;
+    return numparams >= 0 ? numparams : 0;
+  } else {
+    lj_state_checkstack(L, LUA_MINSTACK);
+    return 0;
+  }
+}
+
+/* Call dispatch. Used by call hooks, hot calls or when recording. */
+ASMFunction LJ_FASTCALL lj_dispatch_call(lua_State *L, const BCIns *pc)
+{
+  ERRNO_SAVE
+  GCfunc *fn = curr_func(L);
+  BCOp op;
+  global_State *g = G(L);
+#if LJ_HASJIT
+  jit_State *J = G2J(g);
+#endif
+  int missing = call_init(L, fn);
+#if LJ_HASJIT
+  J->L = L;
+  if ((uintptr_t)pc & 1) {  /* Marker for hot call. */
+#ifdef LUA_USE_ASSERT
+    ptrdiff_t delta = L->top - L->base;
+#endif
+    pc = (const BCIns *)((uintptr_t)pc & ~(uintptr_t)1);
+    lj_trace_hot(J, pc);
+    lua_assert(L->top - L->base == delta);
+    goto out;
+  } else if (J->state != LJ_TRACE_IDLE &&
+	     !(g->hookmask & (HOOK_GC|HOOK_VMEVENT))) {
+#ifdef LUA_USE_ASSERT
+    ptrdiff_t delta = L->top - L->base;
+#endif
+    /* Record the FUNC* bytecodes, too. */
+    lj_trace_ins(J, pc-1);  /* The interpreter bytecode PC is offset by 1. */
+    lua_assert(L->top - L->base == delta);
+  }
+#endif
+  if ((g->hookmask & LUA_MASKCALL)) {
+    int i;
+    for (i = 0; i < missing; i++)  /* Add missing parameters. */
+      setnilV(L->top++);
+    callhook(L, LUA_HOOKCALL, -1);
+    /* Preserve modifications of missing parameters by lua_setlocal(). */
+    while (missing-- > 0 && tvisnil(L->top - 1))
+      L->top--;
+  }
+#if LJ_HASJIT
+out:
+#endif
+  op = bc_op(pc[-1]);  /* Get FUNC* op. */
+#if LJ_HASJIT
+  /* Use the non-hotcounting variants if JIT is off or while recording. */
+  if ((!(J->flags & JIT_F_ON) || J->state != LJ_TRACE_IDLE) &&
+      (op == BC_FUNCF || op == BC_FUNCV))
+    op = (BCOp)((int)op+(int)BC_IFUNCF-(int)BC_FUNCF);
+#endif
+  ERRNO_RESTORE
+  return makeasmfunc(lj_bc_ofs[op]);  /* Return static dispatch target. */
+}
+
diff --git a/lib/luajit/src/lj_dispatch.h b/lib/luajit/src/lj_dispatch.h
new file mode 100644
index 00000000..5960e64a
--- /dev/null
+++ b/lib/luajit/src/lj_dispatch.h
@@ -0,0 +1,131 @@
+/*
+** Instruction dispatch handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_DISPATCH_H
+#define _LJ_DISPATCH_H
+
+#include "lj_obj.h"
+#include "lj_bc.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#endif
+
+#if LJ_TARGET_MIPS
+/* Need our own global offset table for the dreaded MIPS calling conventions. */
+#if LJ_HASJIT
+#define JITGOTDEF(_)	_(lj_trace_exit) _(lj_trace_hot)
+#else
+#define JITGOTDEF(_)
+#endif
+#if LJ_HASFFI
+#define FFIGOTDEF(_) \
+  _(lj_meta_equal_cd) _(lj_ccallback_enter) _(lj_ccallback_leave)
+#else
+#define FFIGOTDEF(_)
+#endif
+#define GOTDEF(_) \
+  _(floor) _(ceil) _(trunc) _(log) _(log10) _(exp) _(sin) _(cos) _(tan) \
+  _(asin) _(acos) _(atan) _(sinh) _(cosh) _(tanh) _(frexp) _(modf) _(atan2) \
+  _(pow) _(fmod) _(ldexp) \
+  _(lj_dispatch_call) _(lj_dispatch_ins) _(lj_err_throw) \
+  _(lj_ffh_coroutine_wrap_err) _(lj_func_closeuv) _(lj_func_newL_gc) \
+  _(lj_gc_barrieruv) _(lj_gc_step) _(lj_gc_step_fixtop) _(lj_meta_arith) \
+  _(lj_meta_call) _(lj_meta_cat) _(lj_meta_comp) _(lj_meta_equal) \
+  _(lj_meta_for) _(lj_meta_len) _(lj_meta_tget) _(lj_meta_tset) \
+  _(lj_state_growstack) _(lj_str_fromnum) _(lj_str_fromnumber) _(lj_str_new) \
+  _(lj_tab_dup) _(lj_tab_get) _(lj_tab_getinth) _(lj_tab_len) _(lj_tab_new) \
+  _(lj_tab_newkey) _(lj_tab_next) _(lj_tab_reasize) \
+  JITGOTDEF(_) FFIGOTDEF(_)
+
+enum {
+#define GOTENUM(name) LJ_GOT_##name,
+GOTDEF(GOTENUM)
+#undef GOTENUM
+  LJ_GOT__MAX
+};
+#endif
+
+/* Type of hot counter. Must match the code in the assembler VM. */
+/* 16 bits are sufficient. Only 0.0015% overhead with maximum slot penalty. */
+typedef uint16_t HotCount;
+
+/* Number of hot counter hash table entries (must be a power of two). */
+#define HOTCOUNT_SIZE		64
+#define HOTCOUNT_PCMASK		((HOTCOUNT_SIZE-1)*sizeof(HotCount))
+
+/* Hotcount decrements. */
+#define HOTCOUNT_LOOP		2
+#define HOTCOUNT_CALL		1
+
+/* This solves a circular dependency problem -- bump as needed. Sigh. */
+#define GG_NUM_ASMFF	62
+
+#define GG_LEN_DDISP	(BC__MAX + GG_NUM_ASMFF)
+#define GG_LEN_SDISP	BC_FUNCF
+#define GG_LEN_DISP	(GG_LEN_DDISP + GG_LEN_SDISP)
+
+/* Global state, main thread and extra fields are allocated together. */
+typedef struct GG_State {
+  lua_State L;				/* Main thread. */
+  global_State g;			/* Global state. */
+#if LJ_TARGET_MIPS
+  ASMFunction got[LJ_GOT__MAX];		/* Global offset table. */
+#endif
+#if LJ_HASJIT
+  jit_State J;				/* JIT state. */
+  HotCount hotcount[HOTCOUNT_SIZE];	/* Hot counters. */
+#endif
+  ASMFunction dispatch[GG_LEN_DISP];	/* Instruction dispatch tables. */
+  BCIns bcff[GG_NUM_ASMFF];		/* Bytecode for ASM fast functions. */
+} GG_State;
+
+#define GG_OFS(field)	((int)offsetof(GG_State, field))
+#define G2GG(gl)	((GG_State *)((char *)(gl) - GG_OFS(g)))
+#define J2GG(j)		((GG_State *)((char *)(j) - GG_OFS(J)))
+#define L2GG(L)		(G2GG(G(L)))
+#define J2G(J)		(&J2GG(J)->g)
+#define G2J(gl)		(&G2GG(gl)->J)
+#define L2J(L)		(&L2GG(L)->J)
+#define GG_G2DISP	(GG_OFS(dispatch) - GG_OFS(g))
+#define GG_DISP2G	(GG_OFS(g) - GG_OFS(dispatch))
+#define GG_DISP2J	(GG_OFS(J) - GG_OFS(dispatch))
+#define GG_DISP2HOT	(GG_OFS(hotcount) - GG_OFS(dispatch))
+#define GG_DISP2STATIC	(GG_LEN_DDISP*(int)sizeof(ASMFunction))
+
+#define hotcount_get(gg, pc) \
+  (gg)->hotcount[(u32ptr(pc)>>2) & (HOTCOUNT_SIZE-1)]
+#define hotcount_set(gg, pc, val) \
+  (hotcount_get((gg), (pc)) = (HotCount)(val))
+
+/* Dispatch table management. */
+LJ_FUNC void lj_dispatch_init(GG_State *GG);
+#if LJ_HASJIT
+LJ_FUNC void lj_dispatch_init_hotcount(global_State *g);
+#endif
+LJ_FUNC void lj_dispatch_update(global_State *g);
+
+/* Instruction dispatch callback for hooks or when recording. */
+LJ_FUNCA void LJ_FASTCALL lj_dispatch_ins(lua_State *L, const BCIns *pc);
+LJ_FUNCA ASMFunction LJ_FASTCALL lj_dispatch_call(lua_State *L, const BCIns*pc);
+LJ_FUNCA void LJ_FASTCALL lj_dispatch_return(lua_State *L, const BCIns *pc);
+
+#if LJ_HASFFI && !defined(_BUILDVM_H)
+/* Save/restore errno and GetLastError() around hooks, exits and recording. */
+#include <errno.h>
+#if LJ_TARGET_WINDOWS
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#define ERRNO_SAVE	int olderr = errno; DWORD oldwerr = GetLastError();
+#define ERRNO_RESTORE	errno = olderr; SetLastError(oldwerr);
+#else
+#define ERRNO_SAVE	int olderr = errno;
+#define ERRNO_RESTORE	errno = olderr;
+#endif
+#else
+#define ERRNO_SAVE
+#define ERRNO_RESTORE
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_emit_arm.h b/lib/luajit/src/lj_emit_arm.h
new file mode 100644
index 00000000..3bac3679
--- /dev/null
+++ b/lib/luajit/src/lj_emit_arm.h
@@ -0,0 +1,356 @@
+/*
+** ARM instruction emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Constant encoding --------------------------------------------------- */
+
+static uint8_t emit_invai[16] = {
+  /* AND */ (ARMI_AND^ARMI_BIC) >> 21,
+  /* EOR */ 0,
+  /* SUB */ (ARMI_SUB^ARMI_ADD) >> 21,
+  /* RSB */ 0,
+  /* ADD */ (ARMI_ADD^ARMI_SUB) >> 21,
+  /* ADC */ (ARMI_ADC^ARMI_SBC) >> 21,
+  /* SBC */ (ARMI_SBC^ARMI_ADC) >> 21,
+  /* RSC */ 0,
+  /* TST */ 0,
+  /* TEQ */ 0,
+  /* CMP */ (ARMI_CMP^ARMI_CMN) >> 21,
+  /* CMN */ (ARMI_CMN^ARMI_CMP) >> 21,
+  /* ORR */ 0,
+  /* MOV */ (ARMI_MOV^ARMI_MVN) >> 21,
+  /* BIC */ (ARMI_BIC^ARMI_AND) >> 21,
+  /* MVN */ (ARMI_MVN^ARMI_MOV) >> 21
+};
+
+/* Encode constant in K12 format for data processing instructions. */
+static uint32_t emit_isk12(ARMIns ai, int32_t n)
+{
+  uint32_t invai, i, m = (uint32_t)n;
+  /* K12: unsigned 8 bit value, rotated in steps of two bits. */
+  for (i = 0; i < 4096; i += 256, m = lj_rol(m, 2))
+    if (m <= 255) return ARMI_K12|m|i;
+  /* Otherwise try negation/complement with the inverse instruction. */
+  invai = emit_invai[((ai >> 21) & 15)];
+  if (!invai) return 0;  /* Failed. No inverse instruction. */
+  m = ~(uint32_t)n;
+  if (invai == ((ARMI_SUB^ARMI_ADD) >> 21) ||
+      invai == (ARMI_CMP^ARMI_CMN) >> 21) m++;
+  for (i = 0; i < 4096; i += 256, m = lj_rol(m, 2))
+    if (m <= 255) return ARMI_K12|(invai<<21)|m|i;
+  return 0;  /* Failed. */
+}
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_dnm(ASMState *as, ARMIns ai, Reg rd, Reg rn, Reg rm)
+{
+  *--as->mcp = ai | ARMF_D(rd) | ARMF_N(rn) | ARMF_M(rm);
+}
+
+static void emit_dm(ASMState *as, ARMIns ai, Reg rd, Reg rm)
+{
+  *--as->mcp = ai | ARMF_D(rd) | ARMF_M(rm);
+}
+
+static void emit_dn(ASMState *as, ARMIns ai, Reg rd, Reg rn)
+{
+  *--as->mcp = ai | ARMF_D(rd) | ARMF_N(rn);
+}
+
+static void emit_nm(ASMState *as, ARMIns ai, Reg rn, Reg rm)
+{
+  *--as->mcp = ai | ARMF_N(rn) | ARMF_M(rm);
+}
+
+static void emit_d(ASMState *as, ARMIns ai, Reg rd)
+{
+  *--as->mcp = ai | ARMF_D(rd);
+}
+
+static void emit_n(ASMState *as, ARMIns ai, Reg rn)
+{
+  *--as->mcp = ai | ARMF_N(rn);
+}
+
+static void emit_m(ASMState *as, ARMIns ai, Reg rm)
+{
+  *--as->mcp = ai | ARMF_M(rm);
+}
+
+static void emit_lsox(ASMState *as, ARMIns ai, Reg rd, Reg rn, int32_t ofs)
+{
+  lua_assert(ofs >= -255 && ofs <= 255);
+  if (ofs < 0) ofs = -ofs; else ai |= ARMI_LS_U;
+  *--as->mcp = ai | ARMI_LS_P | ARMI_LSX_I | ARMF_D(rd) | ARMF_N(rn) |
+	       ((ofs & 0xf0) << 4) | (ofs & 0x0f);
+}
+
+static void emit_lso(ASMState *as, ARMIns ai, Reg rd, Reg rn, int32_t ofs)
+{
+  lua_assert(ofs >= -4095 && ofs <= 4095);
+  /* Combine LDR/STR pairs to LDRD/STRD. */
+  if (*as->mcp == (ai|ARMI_LS_P|ARMI_LS_U|ARMF_D(rd^1)|ARMF_N(rn)|(ofs^4)) &&
+      (ai & ~(ARMI_LDR^ARMI_STR)) == ARMI_STR && rd != rn &&
+      (uint32_t)ofs <= 252 && !(ofs & 3) && !((rd ^ (ofs >>2)) & 1) &&
+      as->mcp != as->mcloop) {
+    as->mcp++;
+    emit_lsox(as, ai == ARMI_LDR ? ARMI_LDRD : ARMI_STRD, rd&~1, rn, ofs&~4);
+    return;
+  }
+  if (ofs < 0) ofs = -ofs; else ai |= ARMI_LS_U;
+  *--as->mcp = ai | ARMI_LS_P | ARMF_D(rd) | ARMF_N(rn) | ofs;
+}
+
+#if !LJ_SOFTFP
+static void emit_vlso(ASMState *as, ARMIns ai, Reg rd, Reg rn, int32_t ofs)
+{
+  lua_assert(ofs >= -1020 && ofs <= 1020 && (ofs&3) == 0);
+  if (ofs < 0) ofs = -ofs; else ai |= ARMI_LS_U;
+  *--as->mcp = ai | ARMI_LS_P | ARMF_D(rd & 15) | ARMF_N(rn) | (ofs >> 2);
+}
+#endif
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer spills of BASE/L. */
+#define emit_canremat(ref)	((ref) < ASMREF_L)
+
+/* Try to find a one step delta relative to another constant. */
+static int emit_kdelta1(ASMState *as, Reg d, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lua_assert(r != d);
+    if (emit_canremat(ref)) {
+      int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i);
+      uint32_t k = emit_isk12(ARMI_ADD, delta);
+      if (k) {
+	if (k == ARMI_K12)
+	  emit_dm(as, ARMI_MOV, d, r);
+	else
+	  emit_dn(as, ARMI_ADD^k, d, r);
+	return 1;
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Try to find a two step delta relative to another constant. */
+static int emit_kdelta2(ASMState *as, Reg d, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lua_assert(r != d);
+    if (emit_canremat(ref)) {
+      int32_t other = ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i;
+      if (other) {
+	int32_t delta = i - other;
+	uint32_t sh, inv = 0, k2, k;
+	if (delta < 0) { delta = -delta; inv = ARMI_ADD^ARMI_SUB; }
+	sh = lj_ffs(delta) & ~1;
+	k2 = emit_isk12(0, delta & (255 << sh));
+	k = emit_isk12(0, delta & ~(255 << sh));
+	if (k) {
+	  emit_dn(as, ARMI_ADD^k2^inv, d, d);
+	  emit_dn(as, ARMI_ADD^k^inv, d, r);
+	  return 1;
+	}
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Load a 32 bit constant into a GPR. */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  uint32_t k = emit_isk12(ARMI_MOV, i);
+  lua_assert(rset_test(as->freeset, r) || r == RID_TMP);
+  if (k) {
+    /* Standard K12 constant. */
+    emit_d(as, ARMI_MOV^k, r);
+  } else if ((as->flags & JIT_F_ARMV6T2) && (uint32_t)i < 0x00010000u) {
+    /* 16 bit loword constant for ARMv6T2. */
+    emit_d(as, ARMI_MOVW|(i & 0x0fff)|((i & 0xf000)<<4), r);
+  } else if (emit_kdelta1(as, r, i)) {
+    /* One step delta relative to another constant. */
+  } else if ((as->flags & JIT_F_ARMV6T2)) {
+    /* 32 bit hiword/loword constant for ARMv6T2. */
+    emit_d(as, ARMI_MOVT|((i>>16) & 0x0fff)|(((i>>16) & 0xf000)<<4), r);
+    emit_d(as, ARMI_MOVW|(i & 0x0fff)|((i & 0xf000)<<4), r);
+  } else if (emit_kdelta2(as, r, i)) {
+    /* Two step delta relative to another constant. */
+  } else {
+    /* Otherwise construct the constant with up to 4 instructions. */
+    /* NYI: use mvn+bic, use pc-relative loads. */
+    for (;;) {
+      uint32_t sh = lj_ffs(i) & ~1;
+      int32_t m = i & (255 << sh);
+      i &= ~(255 << sh);
+      if (i == 0) {
+	emit_d(as, ARMI_MOV ^ emit_isk12(0, m), r);
+	break;
+      }
+      emit_dn(as, ARMI_ORR ^ emit_isk12(0, m), r, r);
+    }
+  }
+}
+
+#define emit_loada(as, r, addr)		emit_loadi(as, (r), i32ptr((addr)))
+
+static Reg ra_allock(ASMState *as, int32_t k, RegSet allow);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, ARMIns ai, Reg r, void *p)
+{
+  int32_t i = i32ptr(p);
+  emit_lso(as, ai, r, ra_allock(as, (i & ~4095), rset_exclude(RSET_GPR, r)),
+	   (i & 4095));
+}
+
+#if !LJ_SOFTFP
+/* Load a number constant into an FPR. */
+static void emit_loadn(ASMState *as, Reg r, cTValue *tv)
+{
+  int32_t i;
+  if ((as->flags & JIT_F_VFPV3) && !tv->u32.lo) {
+    uint32_t hi = tv->u32.hi;
+    uint32_t b = ((hi >> 22) & 0x1ff);
+    if (!(hi & 0xffff) && (b == 0x100 || b == 0x0ff)) {
+      *--as->mcp = ARMI_VMOVI_D | ARMF_D(r & 15) |
+		   ((tv->u32.hi >> 12) & 0x00080000) |
+		   ((tv->u32.hi >> 4) & 0x00070000) |
+		   ((tv->u32.hi >> 16) & 0x0000000f);
+      return;
+    }
+  }
+  i = i32ptr(tv);
+  emit_vlso(as, ARMI_VLDR_D, r,
+	    ra_allock(as, (i & ~1020), RSET_GPR), (i & 1020));
+}
+#endif
+
+/* Get/set global_State fields. */
+#define emit_getgl(as, r, field) \
+  emit_lsptr(as, ARMI_LDR, (r), (void *)&J2G(as->J)->field)
+#define emit_setgl(as, r, field) \
+  emit_lsptr(as, ARMI_STR, (r), (void *)&J2G(as->J)->field)
+
+/* Trace number is determined from pc of exit instruction. */
+#define emit_setvmstate(as, i)		UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_branch(ASMState *as, ARMIns ai, MCode *target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = (target - p) - 1;
+  lua_assert(((delta + 0x00800000) >> 24) == 0);
+  *--p = ai | ((uint32_t)delta & 0x00ffffffu);
+  as->mcp = p;
+}
+
+#define emit_jmp(as, target) emit_branch(as, ARMI_B, (target))
+
+static void emit_call(ASMState *as, void *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = ((char *)target - (char *)p) - 8;
+  if ((((delta>>2) + 0x00800000) >> 24) == 0) {
+    if ((delta & 1))
+      *p = ARMI_BLX | ((uint32_t)(delta>>2) & 0x00ffffffu) | ((delta&2) << 27);
+    else
+      *p = ARMI_BL | ((uint32_t)(delta>>2) & 0x00ffffffu);
+  } else {  /* Target out of range: need indirect call. But don't use R0-R3. */
+    Reg r = ra_allock(as, i32ptr(target), RSET_RANGE(RID_R4, RID_R12+1));
+    *p = ARMI_BLXr | ARMF_M(r);
+  }
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+#if LJ_SOFTFP
+  lua_assert(!irt_isnum(ir->t)); UNUSED(ir);
+#else
+  if (dst >= RID_MAX_GPR) {
+    emit_dm(as, irt_isnum(ir->t) ? ARMI_VMOV_D : ARMI_VMOV_S,
+	    (dst & 15), (src & 15));
+    return;
+  }
+#endif
+  if (as->mcp != as->mcloop) {  /* Swap early registers for loads/stores. */
+    MCode ins = *as->mcp, swp = (src^dst);
+    if ((ins & 0x0c000000) == 0x04000000 && (ins & 0x02000010) != 0x02000010) {
+      if (!((ins ^ (dst << 16)) & 0x000f0000))
+	*as->mcp = ins ^ (swp << 16);  /* Swap N in load/store. */
+      if (!(ins & 0x00100000) && !((ins ^ (dst << 12)) & 0x0000f000))
+	*as->mcp = ins ^ (swp << 12);  /* Swap D in store. */
+    }
+  }
+  emit_dm(as, ARMI_MOV, dst, src);
+}
+
+/* Generic load of register from stack slot. */
+static void emit_spload(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+#if LJ_SOFTFP
+  lua_assert(!irt_isnum(ir->t)); UNUSED(ir);
+#else
+  if (r >= RID_MAX_GPR)
+    emit_vlso(as, irt_isnum(ir->t) ? ARMI_VLDR_D : ARMI_VLDR_S, r, RID_SP, ofs);
+  else
+#endif
+    emit_lso(as, ARMI_LDR, r, RID_SP, ofs);
+}
+
+/* Generic store of register to stack slot. */
+static void emit_spstore(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+#if LJ_SOFTFP
+  lua_assert(!irt_isnum(ir->t)); UNUSED(ir);
+#else
+  if (r >= RID_MAX_GPR)
+    emit_vlso(as, irt_isnum(ir->t) ? ARMI_VSTR_D : ARMI_VSTR_S, r, RID_SP, ofs);
+  else
+#endif
+    emit_lso(as, ARMI_STR, r, RID_SP, ofs);
+}
+
+/* Emit an arithmetic/logic operation with a constant operand. */
+static void emit_opk(ASMState *as, ARMIns ai, Reg dest, Reg src,
+		     int32_t i, RegSet allow)
+{
+  uint32_t k = emit_isk12(ai, i);
+  if (k)
+    emit_dn(as, ai^k, dest, src);
+  else
+    emit_dnm(as, ai, dest, src, ra_allock(as, i, allow));
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs)
+    emit_opk(as, ARMI_ADD, r, r, ofs, rset_exclude(RSET_GPR, r));
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_SP, -(ofs))
+
diff --git a/lib/luajit/src/lj_emit_mips.h b/lib/luajit/src/lj_emit_mips.h
new file mode 100644
index 00000000..dc9197ad
--- /dev/null
+++ b/lib/luajit/src/lj_emit_mips.h
@@ -0,0 +1,211 @@
+/*
+** MIPS instruction emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_dst(ASMState *as, MIPSIns mi, Reg rd, Reg rs, Reg rt)
+{
+  *--as->mcp = mi | MIPSF_D(rd) | MIPSF_S(rs) | MIPSF_T(rt);
+}
+
+static void emit_dta(ASMState *as, MIPSIns mi, Reg rd, Reg rt, uint32_t a)
+{
+  *--as->mcp = mi | MIPSF_D(rd) | MIPSF_T(rt) | MIPSF_A(a);
+}
+
+#define emit_ds(as, mi, rd, rs)		emit_dst(as, (mi), (rd), (rs), 0)
+#define emit_tg(as, mi, rt, rg)		emit_dst(as, (mi), (rg)&31, 0, (rt))
+
+static void emit_tsi(ASMState *as, MIPSIns mi, Reg rt, Reg rs, int32_t i)
+{
+  *--as->mcp = mi | MIPSF_T(rt) | MIPSF_S(rs) | (i & 0xffff);
+}
+
+#define emit_ti(as, mi, rt, i)		emit_tsi(as, (mi), (rt), 0, (i))
+#define emit_hsi(as, mi, rh, rs, i)	emit_tsi(as, (mi), (rh) & 31, (rs), (i))
+
+static void emit_fgh(ASMState *as, MIPSIns mi, Reg rf, Reg rg, Reg rh)
+{
+  *--as->mcp = mi | MIPSF_F(rf&31) | MIPSF_G(rg&31) | MIPSF_H(rh&31);
+}
+
+#define emit_fg(as, mi, rf, rg)		emit_fgh(as, (mi), (rf), (rg), 0)
+
+static void emit_rotr(ASMState *as, Reg dest, Reg src, Reg tmp, uint32_t shift)
+{
+  if ((as->flags & JIT_F_MIPS32R2)) {
+    emit_dta(as, MIPSI_ROTR, dest, src, shift);
+  } else {
+    emit_dst(as, MIPSI_OR, dest, dest, tmp);
+    emit_dta(as, MIPSI_SLL, dest, src, (-shift)&31);
+    emit_dta(as, MIPSI_SRL, tmp, src, shift);
+  }
+}
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= REF_BASE)
+
+/* Try to find a one step delta relative to another constant. */
+static int emit_kdelta1(ASMState *as, Reg t, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lua_assert(r != t);
+    if (ref < ASMREF_L) {
+      int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i);
+      if (checki16(delta)) {
+	emit_tsi(as, MIPSI_ADDIU, t, r, delta);
+	return 1;
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Load a 32 bit constant into a GPR. */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  if (checki16(i)) {
+    emit_ti(as, MIPSI_LI, r, i);
+  } else {
+    if ((i & 0xffff)) {
+      int32_t jgl = i32ptr(J2G(as->J));
+      if ((uint32_t)(i-jgl) < 65536) {
+	emit_tsi(as, MIPSI_ADDIU, r, RID_JGL, i-jgl-32768);
+	return;
+      } else if (emit_kdelta1(as, r, i)) {
+	return;
+      } else if ((i >> 16) == 0) {
+	emit_tsi(as, MIPSI_ORI, r, RID_ZERO, i);
+	return;
+      }
+      emit_tsi(as, MIPSI_ORI, r, r, i);
+    }
+    emit_ti(as, MIPSI_LUI, r, (i >> 16));
+  }
+}
+
+#define emit_loada(as, r, addr)		emit_loadi(as, (r), i32ptr((addr)))
+
+static Reg ra_allock(ASMState *as, int32_t k, RegSet allow);
+static void ra_allockreg(ASMState *as, int32_t k, Reg r);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, MIPSIns mi, Reg r, void *p, RegSet allow)
+{
+  int32_t jgl = i32ptr(J2G(as->J));
+  int32_t i = i32ptr(p);
+  Reg base;
+  if ((uint32_t)(i-jgl) < 65536) {
+    i = i-jgl-32768;
+    base = RID_JGL;
+  } else {
+    base = ra_allock(as, i-(int16_t)i, allow);
+  }
+  emit_tsi(as, mi, r, base, i);
+}
+
+#define emit_loadn(as, r, tv) \
+  emit_lsptr(as, MIPSI_LDC1, ((r) & 31), (void *)(tv), RSET_GPR)
+
+/* Get/set global_State fields. */
+static void emit_lsglptr(ASMState *as, MIPSIns mi, Reg r, int32_t ofs)
+{
+  emit_tsi(as, mi, r, RID_JGL, ofs-32768);
+}
+
+#define emit_getgl(as, r, field) \
+  emit_lsglptr(as, MIPSI_LW, (r), (int32_t)offsetof(global_State, field))
+#define emit_setgl(as, r, field) \
+  emit_lsglptr(as, MIPSI_SW, (r), (int32_t)offsetof(global_State, field))
+
+/* Trace number is determined from per-trace exit stubs. */
+#define emit_setvmstate(as, i)		UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_branch(ASMState *as, MIPSIns mi, Reg rs, Reg rt, MCode *target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = target - p;
+  lua_assert(((delta + 0x8000) >> 16) == 0);
+  *--p = mi | MIPSF_S(rs) | MIPSF_T(rt) | ((uint32_t)delta & 0xffffu);
+  as->mcp = p;
+}
+
+static void emit_jmp(ASMState *as, MCode *target)
+{
+  *--as->mcp = MIPSI_NOP;
+  emit_branch(as, MIPSI_B, RID_ZERO, RID_ZERO, (target));
+}
+
+static void emit_call(ASMState *as, void *target)
+{
+  MCode *p = as->mcp;
+  *--p = MIPSI_NOP;
+  if ((((uintptr_t)target ^ (uintptr_t)p) >> 28) == 0)
+    *--p = MIPSI_JAL | (((uintptr_t)target >>2) & 0x03ffffffu);
+  else  /* Target out of range: need indirect call. */
+    *--p = MIPSI_JALR | MIPSF_S(RID_CFUNCADDR);
+  as->mcp = p;
+  ra_allockreg(as, i32ptr(target), RID_CFUNCADDR);
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+#define emit_move(as, dst, src) \
+  emit_ds(as, MIPSI_MOVE, (dst), (src))
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  if (dst < RID_MAX_GPR)
+    emit_move(as, dst, src);
+  else
+    emit_fg(as, irt_isnum(ir->t) ? MIPSI_MOV_D : MIPSI_MOV_S, dst, src);
+}
+
+/* Generic load of register from stack slot. */
+static void emit_spload(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tsi(as, MIPSI_LW, r, RID_SP, ofs);
+  else
+    emit_tsi(as, irt_isnum(ir->t) ? MIPSI_LDC1 : MIPSI_LWC1,
+	     (r & 31), RID_SP, ofs);
+}
+
+/* Generic store of register to stack slot. */
+static void emit_spstore(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tsi(as, MIPSI_SW, r, RID_SP, ofs);
+  else
+    emit_tsi(as, irt_isnum(ir->t) ? MIPSI_SDC1 : MIPSI_SWC1,
+	     (r&31), RID_SP, ofs);
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs) {
+    lua_assert(checki16(ofs));
+    emit_tsi(as, MIPSI_ADDIU, r, r, ofs);
+  }
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_SP, -(ofs))
+
diff --git a/lib/luajit/src/lj_emit_ppc.h b/lib/luajit/src/lj_emit_ppc.h
new file mode 100644
index 00000000..3a2ae389
--- /dev/null
+++ b/lib/luajit/src/lj_emit_ppc.h
@@ -0,0 +1,238 @@
+/*
+** PPC instruction emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_tab(ASMState *as, PPCIns pi, Reg rt, Reg ra, Reg rb)
+{
+  *--as->mcp = pi | PPCF_T(rt) | PPCF_A(ra) | PPCF_B(rb);
+}
+
+#define emit_asb(as, pi, ra, rs, rb)	emit_tab(as, (pi), (rs), (ra), (rb))
+#define emit_as(as, pi, ra, rs)		emit_tab(as, (pi), (rs), (ra), 0)
+#define emit_ab(as, pi, ra, rb)		emit_tab(as, (pi), 0, (ra), (rb))
+
+static void emit_tai(ASMState *as, PPCIns pi, Reg rt, Reg ra, int32_t i)
+{
+  *--as->mcp = pi | PPCF_T(rt) | PPCF_A(ra) | (i & 0xffff);
+}
+
+#define emit_ti(as, pi, rt, i)		emit_tai(as, (pi), (rt), 0, (i))
+#define emit_ai(as, pi, ra, i)		emit_tai(as, (pi), 0, (ra), (i))
+#define emit_asi(as, pi, ra, rs, i)	emit_tai(as, (pi), (rs), (ra), (i))
+
+#define emit_fab(as, pi, rf, ra, rb) \
+  emit_tab(as, (pi), (rf)&31, (ra)&31, (rb)&31)
+#define emit_fb(as, pi, rf, rb)		emit_tab(as, (pi), (rf)&31, 0, (rb)&31)
+#define emit_fac(as, pi, rf, ra, rc) \
+  emit_tab(as, (pi) | PPCF_C((rc) & 31), (rf)&31, (ra)&31, 0)
+#define emit_facb(as, pi, rf, ra, rc, rb) \
+  emit_tab(as, (pi) | PPCF_C((rc) & 31), (rf)&31, (ra)&31, (rb)&31)
+#define emit_fai(as, pi, rf, ra, i)	emit_tai(as, (pi), (rf)&31, (ra), (i))
+
+static void emit_rot(ASMState *as, PPCIns pi, Reg ra, Reg rs,
+		     int32_t n, int32_t b, int32_t e)
+{
+  *--as->mcp = pi | PPCF_T(rs) | PPCF_A(ra) | PPCF_B(n) |
+	       PPCF_MB(b) | PPCF_ME(e);
+}
+
+static void emit_slwi(ASMState *as, Reg ra, Reg rs, int32_t n)
+{
+  lua_assert(n >= 0 && n < 32);
+  emit_rot(as, PPCI_RLWINM, ra, rs, n, 0, 31-n);
+}
+
+static void emit_rotlwi(ASMState *as, Reg ra, Reg rs, int32_t n)
+{
+  lua_assert(n >= 0 && n < 32);
+  emit_rot(as, PPCI_RLWINM, ra, rs, n, 0, 31);
+}
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= REF_BASE)
+
+/* Try to find a one step delta relative to another constant. */
+static int emit_kdelta1(ASMState *as, Reg t, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lua_assert(r != t);
+    if (ref < ASMREF_L) {
+      int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i);
+      if (checki16(delta)) {
+	emit_tai(as, PPCI_ADDI, t, r, delta);
+	return 1;
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Load a 32 bit constant into a GPR. */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  if (checki16(i)) {
+    emit_ti(as, PPCI_LI, r, i);
+  } else {
+    if ((i & 0xffff)) {
+      int32_t jgl = i32ptr(J2G(as->J));
+      if ((uint32_t)(i-jgl) < 65536) {
+	emit_tai(as, PPCI_ADDI, r, RID_JGL, i-jgl-32768);
+	return;
+      } else if (emit_kdelta1(as, r, i)) {
+	return;
+      }
+      emit_asi(as, PPCI_ORI, r, r, i);
+    }
+    emit_ti(as, PPCI_LIS, r, (i >> 16));
+  }
+}
+
+#define emit_loada(as, r, addr)		emit_loadi(as, (r), i32ptr((addr)))
+
+static Reg ra_allock(ASMState *as, int32_t k, RegSet allow);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, PPCIns pi, Reg r, void *p, RegSet allow)
+{
+  int32_t jgl = i32ptr(J2G(as->J));
+  int32_t i = i32ptr(p);
+  Reg base;
+  if ((uint32_t)(i-jgl) < 65536) {
+    i = i-jgl-32768;
+    base = RID_JGL;
+  } else {
+    base = ra_allock(as, i-(int16_t)i, allow);
+  }
+  emit_tai(as, pi, r, base, i);
+}
+
+#define emit_loadn(as, r, tv) \
+  emit_lsptr(as, PPCI_LFD, ((r) & 31), (void *)(tv), RSET_GPR)
+
+/* Get/set global_State fields. */
+static void emit_lsglptr(ASMState *as, PPCIns pi, Reg r, int32_t ofs)
+{
+  emit_tai(as, pi, r, RID_JGL, ofs-32768);
+}
+
+#define emit_getgl(as, r, field) \
+  emit_lsglptr(as, PPCI_LWZ, (r), (int32_t)offsetof(global_State, field))
+#define emit_setgl(as, r, field) \
+  emit_lsglptr(as, PPCI_STW, (r), (int32_t)offsetof(global_State, field))
+
+/* Trace number is determined from per-trace exit stubs. */
+#define emit_setvmstate(as, i)		UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_condbranch(ASMState *as, PPCIns pi, PPCCC cc, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  lua_assert(((delta + 0x8000) >> 16) == 0);
+  pi ^= (delta & 0x8000) * (PPCF_Y/0x8000);
+  *p = pi | PPCF_CC(cc) | ((uint32_t)delta & 0xffffu);
+}
+
+static void emit_jmp(ASMState *as, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  *p = PPCI_B | (delta & 0x03fffffcu);
+}
+
+static void emit_call(ASMState *as, void *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  if ((((delta>>2) + 0x00800000) >> 24) == 0) {
+    *p = PPCI_BL | (delta & 0x03fffffcu);
+  } else {  /* Target out of range: need indirect call. Don't use arg reg. */
+    RegSet allow = RSET_GPR & ~RSET_RANGE(RID_R0, REGARG_LASTGPR+1);
+    Reg r = ra_allock(as, i32ptr(target), allow);
+    *p = PPCI_BCTRL;
+    p[-1] = PPCI_MTCTR | PPCF_T(r);
+    as->mcp = p-1;
+  }
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+#define emit_mr(as, dst, src) \
+  emit_asb(as, PPCI_MR, (dst), (src), (src))
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  UNUSED(ir);
+  if (dst < RID_MAX_GPR)
+    emit_mr(as, dst, src);
+  else
+    emit_fb(as, PPCI_FMR, dst, src);
+}
+
+/* Generic load of register from stack slot. */
+static void emit_spload(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tai(as, PPCI_LWZ, r, RID_SP, ofs);
+  else
+    emit_fai(as, irt_isnum(ir->t) ? PPCI_LFD : PPCI_LFS, r, RID_SP, ofs);
+}
+
+/* Generic store of register to stack slot. */
+static void emit_spstore(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tai(as, PPCI_STW, r, RID_SP, ofs);
+  else
+    emit_fai(as, irt_isnum(ir->t) ? PPCI_STFD : PPCI_STFS, r, RID_SP, ofs);
+}
+
+/* Emit a compare (for equality) with a constant operand. */
+static void emit_cmpi(ASMState *as, Reg r, int32_t k)
+{
+  if (checki16(k)) {
+    emit_ai(as, PPCI_CMPWI, r, k);
+  } else if (checku16(k)) {
+    emit_ai(as, PPCI_CMPLWI, r, k);
+  } else {
+    emit_ai(as, PPCI_CMPLWI, RID_TMP, k);
+    emit_asi(as, PPCI_XORIS, RID_TMP, r, (k >> 16));
+  }
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs) {
+    emit_tai(as, PPCI_ADDI, r, r, ofs);
+    if (!checki16(ofs))
+      emit_tai(as, PPCI_ADDIS, r, r, (ofs + 32768) >> 16);
+  }
+}
+
+static void emit_spsub(ASMState *as, int32_t ofs)
+{
+  if (ofs) {
+    emit_tai(as, PPCI_STWU, RID_TMP, RID_SP, -ofs);
+    emit_tai(as, PPCI_ADDI, RID_TMP, RID_SP,
+	     CFRAME_SIZE + (as->parent ? as->parent->spadjust : 0));
+  }
+}
+
diff --git a/lib/luajit/src/lj_emit_x86.h b/lib/luajit/src/lj_emit_x86.h
new file mode 100644
index 00000000..8cfb654f
--- /dev/null
+++ b/lib/luajit/src/lj_emit_x86.h
@@ -0,0 +1,466 @@
+/*
+** x86/x64 instruction emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+#define MODRM(mode, r1, r2)	((MCode)((mode)+(((r1)&7)<<3)+((r2)&7)))
+
+#if LJ_64
+#define REXRB(p, rr, rb) \
+    { MCode rex = 0x40 + (((rr)>>1)&4) + (((rb)>>3)&1); \
+      if (rex != 0x40) *--(p) = rex; }
+#define FORCE_REX		0x200
+#define REX_64			(FORCE_REX|0x080000)
+#else
+#define REXRB(p, rr, rb)	((void)0)
+#define FORCE_REX		0
+#define REX_64			0
+#endif
+
+#define emit_i8(as, i)		(*--as->mcp = (MCode)(i))
+#define emit_i32(as, i)		(*(int32_t *)(as->mcp-4) = (i), as->mcp -= 4)
+#define emit_u32(as, u)		(*(uint32_t *)(as->mcp-4) = (u), as->mcp -= 4)
+
+#define emit_x87op(as, xo) \
+  (*(uint16_t *)(as->mcp-2) = (uint16_t)(xo), as->mcp -= 2)
+
+/* op */
+static LJ_AINLINE MCode *emit_op(x86Op xo, Reg rr, Reg rb, Reg rx,
+				 MCode *p, int delta)
+{
+  int n = (int8_t)xo;
+#if defined(__GNUC__)
+  if (__builtin_constant_p(xo) && n == -2)
+    p[delta-2] = (MCode)(xo >> 24);
+  else if (__builtin_constant_p(xo) && n == -3)
+    *(uint16_t *)(p+delta-3) = (uint16_t)(xo >> 16);
+  else
+#endif
+    *(uint32_t *)(p+delta-5) = (uint32_t)xo;
+  p += n + delta;
+#if LJ_64
+  {
+    uint32_t rex = 0x40 + ((rr>>1)&(4+(FORCE_REX>>1)))+((rx>>2)&2)+((rb>>3)&1);
+    if (rex != 0x40) {
+      rex |= (rr >> 16);
+      if (n == -4) { *p = (MCode)rex; rex = (MCode)(xo >> 8); }
+      else if ((xo & 0xffffff) == 0x6600fd) { *p = (MCode)rex; rex = 0x66; }
+      *--p = (MCode)rex;
+    }
+  }
+#else
+  UNUSED(rr); UNUSED(rb); UNUSED(rx);
+#endif
+  return p;
+}
+
+/* op + modrm */
+#define emit_opm(xo, mode, rr, rb, p, delta) \
+  (p[(delta)-1] = MODRM((mode), (rr), (rb)), \
+   emit_op((xo), (rr), (rb), 0, (p), (delta)))
+
+/* op + modrm + sib */
+#define emit_opmx(xo, mode, scale, rr, rb, rx, p) \
+  (p[-1] = MODRM((scale), (rx), (rb)), \
+   p[-2] = MODRM((mode), (rr), RID_ESP), \
+   emit_op((xo), (rr), (rb), (rx), (p), -1))
+
+/* op r1, r2 */
+static void emit_rr(ASMState *as, x86Op xo, Reg r1, Reg r2)
+{
+  MCode *p = as->mcp;
+  as->mcp = emit_opm(xo, XM_REG, r1, r2, p, 0);
+}
+
+#if LJ_64 && defined(LUA_USE_ASSERT)
+/* [addr] is sign-extended in x64 and must be in lower 2G (not 4G). */
+static int32_t ptr2addr(const void *p)
+{
+  lua_assert((uintptr_t)p < (uintptr_t)0x80000000);
+  return i32ptr(p);
+}
+#else
+#define ptr2addr(p)	(i32ptr((p)))
+#endif
+
+/* op r, [addr] */
+static void emit_rma(ASMState *as, x86Op xo, Reg rr, const void *addr)
+{
+  MCode *p = as->mcp;
+  *(int32_t *)(p-4) = ptr2addr(addr);
+#if LJ_64
+  p[-5] = MODRM(XM_SCALE1, RID_ESP, RID_EBP);
+  as->mcp = emit_opm(xo, XM_OFS0, rr, RID_ESP, p, -5);
+#else
+  as->mcp = emit_opm(xo, XM_OFS0, rr, RID_EBP, p, -4);
+#endif
+}
+
+/* op r, [base+ofs] */
+static void emit_rmro(ASMState *as, x86Op xo, Reg rr, Reg rb, int32_t ofs)
+{
+  MCode *p = as->mcp;
+  x86Mode mode;
+  if (ra_hasreg(rb)) {
+    if (ofs == 0 && (rb&7) != RID_EBP) {
+      mode = XM_OFS0;
+    } else if (checki8(ofs)) {
+      *--p = (MCode)ofs;
+      mode = XM_OFS8;
+    } else {
+      p -= 4;
+      *(int32_t *)p = ofs;
+      mode = XM_OFS32;
+    }
+    if ((rb&7) == RID_ESP)
+      *--p = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+  } else {
+    *(int32_t *)(p-4) = ofs;
+#if LJ_64
+    p[-5] = MODRM(XM_SCALE1, RID_ESP, RID_EBP);
+    p -= 5;
+    rb = RID_ESP;
+#else
+    p -= 4;
+    rb = RID_EBP;
+#endif
+    mode = XM_OFS0;
+  }
+  as->mcp = emit_opm(xo, mode, rr, rb, p, 0);
+}
+
+/* op r, [base+idx*scale+ofs] */
+static void emit_rmrxo(ASMState *as, x86Op xo, Reg rr, Reg rb, Reg rx,
+		       x86Mode scale, int32_t ofs)
+{
+  MCode *p = as->mcp;
+  x86Mode mode;
+  if (ofs == 0 && (rb&7) != RID_EBP) {
+    mode = XM_OFS0;
+  } else if (checki8(ofs)) {
+    mode = XM_OFS8;
+    *--p = (MCode)ofs;
+  } else {
+    mode = XM_OFS32;
+    p -= 4;
+    *(int32_t *)p = ofs;
+  }
+  as->mcp = emit_opmx(xo, mode, scale, rr, rb, rx, p);
+}
+
+/* op r, i */
+static void emit_gri(ASMState *as, x86Group xg, Reg rb, int32_t i)
+{
+  MCode *p = as->mcp;
+  x86Op xo;
+  if (checki8(i)) {
+    *--p = (MCode)i;
+    xo = XG_TOXOi8(xg);
+  } else {
+    p -= 4;
+    *(int32_t *)p = i;
+    xo = XG_TOXOi(xg);
+  }
+  as->mcp = emit_opm(xo, XM_REG, (Reg)(xg & 7) | (rb & REX_64), rb, p, 0);
+}
+
+/* op [base+ofs], i */
+static void emit_gmroi(ASMState *as, x86Group xg, Reg rb, int32_t ofs,
+		       int32_t i)
+{
+  x86Op xo;
+  if (checki8(i)) {
+    emit_i8(as, i);
+    xo = XG_TOXOi8(xg);
+  } else {
+    emit_i32(as, i);
+    xo = XG_TOXOi(xg);
+  }
+  emit_rmro(as, xo, (Reg)(xg & 7), rb, ofs);
+}
+
+#define emit_shifti(as, xg, r, i) \
+  (emit_i8(as, (i)), emit_rr(as, XO_SHIFTi, (Reg)(xg), (r)))
+
+/* op r, rm/mrm */
+static void emit_mrm(ASMState *as, x86Op xo, Reg rr, Reg rb)
+{
+  MCode *p = as->mcp;
+  x86Mode mode = XM_REG;
+  if (rb == RID_MRM) {
+    rb = as->mrm.base;
+    if (rb == RID_NONE) {
+      rb = RID_EBP;
+      mode = XM_OFS0;
+      p -= 4;
+      *(int32_t *)p = as->mrm.ofs;
+      if (as->mrm.idx != RID_NONE)
+	goto mrmidx;
+#if LJ_64
+      *--p = MODRM(XM_SCALE1, RID_ESP, RID_EBP);
+      rb = RID_ESP;
+#endif
+    } else {
+      if (as->mrm.ofs == 0 && (rb&7) != RID_EBP) {
+	mode = XM_OFS0;
+      } else if (checki8(as->mrm.ofs)) {
+	*--p = (MCode)as->mrm.ofs;
+	mode = XM_OFS8;
+      } else {
+	p -= 4;
+	*(int32_t *)p = as->mrm.ofs;
+	mode = XM_OFS32;
+      }
+      if (as->mrm.idx != RID_NONE) {
+      mrmidx:
+	as->mcp = emit_opmx(xo, mode, as->mrm.scale, rr, rb, as->mrm.idx, p);
+	return;
+      }
+      if ((rb&7) == RID_ESP)
+	*--p = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+    }
+  }
+  as->mcp = emit_opm(xo, mode, rr, rb, p, 0);
+}
+
+/* op rm/mrm, i */
+static void emit_gmrmi(ASMState *as, x86Group xg, Reg rb, int32_t i)
+{
+  x86Op xo;
+  if (checki8(i)) {
+    emit_i8(as, i);
+    xo = XG_TOXOi8(xg);
+  } else {
+    emit_i32(as, i);
+    xo = XG_TOXOi(xg);
+  }
+  emit_mrm(as, xo, (Reg)(xg & 7) | (rb & REX_64), (rb & ~REX_64));
+}
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Instruction selection for XMM moves. */
+#define XMM_MOVRR(as)	((as->flags & JIT_F_SPLIT_XMM) ? XO_MOVSD : XO_MOVAPS)
+#define XMM_MOVRM(as)	((as->flags & JIT_F_SPLIT_XMM) ? XO_MOVLPD : XO_MOVSD)
+
+/* mov [base+ofs], i */
+static void emit_movmroi(ASMState *as, Reg base, int32_t ofs, int32_t i)
+{
+  emit_i32(as, i);
+  emit_rmro(as, XO_MOVmi, 0, base, ofs);
+}
+
+/* mov [base+ofs], r */
+#define emit_movtomro(as, r, base, ofs) \
+  emit_rmro(as, XO_MOVto, (r), (base), (ofs))
+
+/* Get/set global_State fields. */
+#define emit_opgl(as, xo, r, field) \
+  emit_rma(as, (xo), (r), (void *)&J2G(as->J)->field)
+#define emit_getgl(as, r, field)	emit_opgl(as, XO_MOV, (r), field)
+#define emit_setgl(as, r, field)	emit_opgl(as, XO_MOVto, (r), field)
+
+#define emit_setvmstate(as, i) \
+  (emit_i32(as, i), emit_opgl(as, XO_MOVmi, 0, vmstate))
+
+/* mov r, i / xor r, r */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  /* XOR r,r is shorter, but modifies the flags. This is bad for HIOP. */
+  if (i == 0 && !(LJ_32 && (IR(as->curins)->o == IR_HIOP ||
+			    (as->curins+1 < as->T->nins &&
+			     IR(as->curins+1)->o == IR_HIOP)))) {
+    emit_rr(as, XO_ARITH(XOg_XOR), r, r);
+  } else {
+    MCode *p = as->mcp;
+    *(int32_t *)(p-4) = i;
+    p[-5] = (MCode)(XI_MOVri+(r&7));
+    p -= 5;
+    REXRB(p, 0, r);
+    as->mcp = p;
+  }
+}
+
+/* mov r, addr */
+#define emit_loada(as, r, addr) \
+  emit_loadi(as, (r), ptr2addr((addr)))
+
+#if LJ_64
+/* mov r, imm64 or shorter 32 bit extended load. */
+static void emit_loadu64(ASMState *as, Reg r, uint64_t u64)
+{
+  if (checku32(u64)) {  /* 32 bit load clears upper 32 bits. */
+    emit_loadi(as, r, (int32_t)u64);
+  } else if (checki32((int64_t)u64)) {  /* Sign-extended 32 bit load. */
+    MCode *p = as->mcp;
+    *(int32_t *)(p-4) = (int32_t)u64;
+    as->mcp = emit_opm(XO_MOVmi, XM_REG, REX_64, r, p, -4);
+  } else {  /* Full-size 64 bit load. */
+    MCode *p = as->mcp;
+    *(uint64_t *)(p-8) = u64;
+    p[-9] = (MCode)(XI_MOVri+(r&7));
+    p[-10] = 0x48 + ((r>>3)&1);
+    p -= 10;
+    as->mcp = p;
+  }
+}
+#endif
+
+/* movsd r, [&tv->n] / xorps r, r */
+static void emit_loadn(ASMState *as, Reg r, cTValue *tv)
+{
+  if (tvispzero(tv))  /* Use xor only for +0. */
+    emit_rr(as, XO_XORPS, r, r);
+  else
+    emit_rma(as, XMM_MOVRM(as), r, &tv->n);
+}
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for short jumps. */
+typedef MCode *MCLabel;
+
+#if LJ_32 && LJ_HASFFI
+/* jmp short target */
+static void emit_sjmp(ASMState *as, MCLabel target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = target - p;
+  lua_assert(delta == (int8_t)delta);
+  p[-1] = (MCode)(int8_t)delta;
+  p[-2] = XI_JMPs;
+  as->mcp = p - 2;
+}
+#endif
+
+/* jcc short target */
+static void emit_sjcc(ASMState *as, int cc, MCLabel target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = target - p;
+  lua_assert(delta == (int8_t)delta);
+  p[-1] = (MCode)(int8_t)delta;
+  p[-2] = (MCode)(XI_JCCs+(cc&15));
+  as->mcp = p - 2;
+}
+
+/* jcc short (pending target) */
+static MCLabel emit_sjcc_label(ASMState *as, int cc)
+{
+  MCode *p = as->mcp;
+  p[-1] = 0;
+  p[-2] = (MCode)(XI_JCCs+(cc&15));
+  as->mcp = p - 2;
+  return p;
+}
+
+/* Fixup jcc short target. */
+static void emit_sfixup(ASMState *as, MCLabel source)
+{
+  source[-1] = (MCode)(as->mcp-source);
+}
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+/* Compute relative 32 bit offset for jump and call instructions. */
+static LJ_AINLINE int32_t jmprel(MCode *p, MCode *target)
+{
+  ptrdiff_t delta = target - p;
+  lua_assert(delta == (int32_t)delta);
+  return (int32_t)delta;
+}
+
+/* jcc target */
+static void emit_jcc(ASMState *as, int cc, MCode *target)
+{
+  MCode *p = as->mcp;
+  *(int32_t *)(p-4) = jmprel(p, target);
+  p[-5] = (MCode)(XI_JCCn+(cc&15));
+  p[-6] = 0x0f;
+  as->mcp = p - 6;
+}
+
+/* jmp target */
+static void emit_jmp(ASMState *as, MCode *target)
+{
+  MCode *p = as->mcp;
+  *(int32_t *)(p-4) = jmprel(p, target);
+  p[-5] = XI_JMP;
+  as->mcp = p - 5;
+}
+
+/* call target */
+static void emit_call_(ASMState *as, MCode *target)
+{
+  MCode *p = as->mcp;
+#if LJ_64
+  if (target-p != (int32_t)(target-p)) {
+    /* Assumes RID_RET is never an argument to calls and always clobbered. */
+    emit_rr(as, XO_GROUP5, XOg_CALL, RID_RET);
+    emit_loadu64(as, RID_RET, (uint64_t)target);
+    return;
+  }
+#endif
+  *(int32_t *)(p-4) = jmprel(p, target);
+  p[-5] = XI_CALL;
+  as->mcp = p - 5;
+}
+
+#define emit_call(as, f)	emit_call_(as, (MCode *)(void *)(f))
+
+/* -- Emit generic operations --------------------------------------------- */
+
+/* Use 64 bit operations to handle 64 bit IR types. */
+#if LJ_64
+#define REX_64IR(ir, r)		((r) + (irt_is64((ir)->t) ? REX_64 : 0))
+#else
+#define REX_64IR(ir, r)		(r)
+#endif
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  UNUSED(ir);
+  if (dst < RID_MAX_GPR)
+    emit_rr(as, XO_MOV, REX_64IR(ir, dst), src);
+  else
+    emit_rr(as, XMM_MOVRR(as), dst, src);
+}
+
+/* Generic load of register from stack slot. */
+static void emit_spload(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_rmro(as, XO_MOV, REX_64IR(ir, r), RID_ESP, ofs);
+  else
+    emit_rmro(as, irt_isnum(ir->t) ? XMM_MOVRM(as) : XO_MOVSS, r, RID_ESP, ofs);
+}
+
+/* Generic store of register to stack slot. */
+static void emit_spstore(ASMState *as, IRIns *ir, Reg r, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_rmro(as, XO_MOVto, REX_64IR(ir, r), RID_ESP, ofs);
+  else
+    emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSDto : XO_MOVSSto, r, RID_ESP, ofs);
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs) {
+    if ((as->flags & JIT_F_LEA_AGU))
+      emit_rmro(as, XO_LEA, r, r, ofs);
+    else
+      emit_gri(as, XG_ARITHi(XOg_ADD), r, ofs);
+  }
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_ESP|REX_64, -(ofs))
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= REF_BASE)
+
diff --git a/lib/luajit/src/lj_err.c b/lib/luajit/src/lj_err.c
new file mode 100644
index 00000000..db182673
--- /dev/null
+++ b/lib/luajit/src/lj_err.c
@@ -0,0 +1,785 @@
+/*
+** Error handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_err_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_func.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_ff.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+
+/*
+** LuaJIT can either use internal or external frame unwinding:
+**
+** - Internal frame unwinding (INT) is free-standing and doesn't require
+**   any OS or library support.
+**
+** - External frame unwinding (EXT) uses the system-provided unwind handler.
+**
+** Pros and Cons:
+**
+** - EXT requires unwind tables for *all* functions on the C stack between
+**   the pcall/catch and the error/throw. This is the default on x64,
+**   but needs to be manually enabled on x86/PPC for non-C++ code.
+**
+** - INT is faster when actually throwing errors (but this happens rarely).
+**   Setting up error handlers is zero-cost in any case.
+**
+** - EXT provides full interoperability with C++ exceptions. You can throw
+**   Lua errors or C++ exceptions through a mix of Lua frames and C++ frames.
+**   C++ destructors are called as needed. C++ exceptions caught by pcall
+**   are converted to the string "C++ exception". Lua errors can be caught
+**   with catch (...) in C++.
+**
+** - INT has only limited support for automatically catching C++ exceptions
+**   on POSIX systems using DWARF2 stack unwinding. Other systems may use
+**   the wrapper function feature. Lua errors thrown through C++ frames
+**   cannot be caught by C++ code and C++ destructors are not run.
+**
+** EXT is the default on x64 systems, INT is the default on all other systems.
+**
+** EXT can be manually enabled on POSIX systems using GCC and DWARF2 stack
+** unwinding with -DLUAJIT_UNWIND_EXTERNAL. *All* C code must be compiled
+** with -funwind-tables (or -fexceptions). This includes LuaJIT itself (set
+** TARGET_CFLAGS), all of your C/Lua binding code, all loadable C modules
+** and all C libraries that have callbacks which may be used to call back
+** into Lua. C++ code must *not* be compiled with -fno-exceptions.
+**
+** EXT cannot be enabled on WIN32 since system exceptions use code-driven SEH.
+** EXT is mandatory on WIN64 since the calling convention has an abundance
+** of callee-saved registers (rbx, rbp, rsi, rdi, r12-r15, xmm6-xmm15).
+** EXT is mandatory on POSIX/x64 since the interpreter doesn't save r12/r13.
+*/
+
+#if defined(__GNUC__) && (LJ_TARGET_X64 || defined(LUAJIT_UNWIND_EXTERNAL))
+#define LJ_UNWIND_EXT	1
+#elif LJ_TARGET_X64 && LJ_TARGET_WINDOWS
+#define LJ_UNWIND_EXT	1
+#endif
+
+/* -- Error messages ------------------------------------------------------ */
+
+/* Error message strings. */
+LJ_DATADEF const char *lj_err_allmsg =
+#define ERRDEF(name, msg)	msg "\0"
+#include "lj_errmsg.h"
+;
+
+/* -- Internal frame unwinding -------------------------------------------- */
+
+/* Unwind Lua stack and move error message to new top. */
+LJ_NOINLINE static void unwindstack(lua_State *L, TValue *top)
+{
+  lj_func_closeuv(L, top);
+  if (top < L->top-1) {
+    copyTV(L, top, L->top-1);
+    L->top = top+1;
+  }
+  lj_state_relimitstack(L);
+}
+
+/* Unwind until stop frame. Optionally cleanup frames. */
+static void *err_unwind(lua_State *L, void *stopcf, int errcode)
+{
+  TValue *frame = L->base-1;
+  void *cf = L->cframe;
+  while (cf) {
+    int32_t nres = cframe_nres(cframe_raw(cf));
+    if (nres < 0) {  /* C frame without Lua frame? */
+      TValue *top = restorestack(L, -nres);
+      if (frame < top) {  /* Frame reached? */
+	if (errcode) {
+	  L->cframe = cframe_prev(cf);
+	  L->base = frame+1;
+	  unwindstack(L, top);
+	}
+	return cf;
+      }
+    }
+    if (frame <= tvref(L->stack))
+      break;
+    switch (frame_typep(frame)) {
+    case FRAME_LUA:  /* Lua frame. */
+    case FRAME_LUAP:
+      frame = frame_prevl(frame);
+      break;
+    case FRAME_C:  /* C frame. */
+#if LJ_HASFFI
+    unwind_c:
+#endif
+#if LJ_UNWIND_EXT
+      if (errcode) {
+	L->cframe = cframe_prev(cf);
+	L->base = frame_prevd(frame) + 1;
+	unwindstack(L, frame);
+      } else if (cf != stopcf) {
+	cf = cframe_prev(cf);
+	frame = frame_prevd(frame);
+	break;
+      }
+      return NULL;  /* Continue unwinding. */
+#else
+      UNUSED(stopcf);
+      cf = cframe_prev(cf);
+      frame = frame_prevd(frame);
+      break;
+#endif
+    case FRAME_CP:  /* Protected C frame. */
+      if (cframe_canyield(cf)) {  /* Resume? */
+	if (errcode) {
+	  hook_leave(G(L));  /* Assumes nobody uses coroutines inside hooks. */
+	  L->cframe = NULL;
+	  L->status = (uint8_t)errcode;
+	}
+	return cf;
+      }
+      if (errcode) {
+	L->cframe = cframe_prev(cf);
+	L->base = frame_prevd(frame) + 1;
+	unwindstack(L, frame);
+      }
+      return cf;
+    case FRAME_CONT:  /* Continuation frame. */
+#if LJ_HASFFI
+      if ((frame-1)->u32.lo == LJ_CONT_FFI_CALLBACK)
+	goto unwind_c;
+#endif
+    case FRAME_VARG:  /* Vararg frame. */
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_PCALL:  /* FF pcall() frame. */
+    case FRAME_PCALLH:  /* FF pcall() frame inside hook. */
+      if (errcode) {
+	if (errcode == LUA_YIELD) {
+	  frame = frame_prevd(frame);
+	  break;
+	}
+	if (frame_typep(frame) == FRAME_PCALL)
+	  hook_leave(G(L));
+	L->cframe = cf;
+	L->base = frame_prevd(frame) + 1;
+	unwindstack(L, L->base);
+      }
+      return (void *)((intptr_t)cf | CFRAME_UNWIND_FF);
+    }
+  }
+  /* No C frame. */
+  if (errcode) {
+    L->cframe = NULL;
+    L->base = tvref(L->stack)+1;
+    unwindstack(L, L->base);
+    if (G(L)->panic)
+      G(L)->panic(L);
+    exit(EXIT_FAILURE);
+  }
+  return L;  /* Anything non-NULL will do. */
+}
+
+/* -- External frame unwinding -------------------------------------------- */
+
+#if defined(__GNUC__) && !LJ_NO_UNWIND && !LJ_TARGET_WINDOWS
+
+/*
+** We have to use our own definitions instead of the mandatory (!) unwind.h,
+** since various OS, distros and compilers mess up the header installation.
+*/
+
+typedef struct _Unwind_Exception
+{
+  uint64_t exclass;
+  void (*excleanup)(int, struct _Unwind_Exception *);
+  uintptr_t p1, p2;
+} __attribute__((__aligned__)) _Unwind_Exception;
+
+typedef struct _Unwind_Context _Unwind_Context;
+
+#define _URC_OK			0
+#define _URC_FATAL_PHASE1_ERROR	3
+#define _URC_HANDLER_FOUND	6
+#define _URC_INSTALL_CONTEXT	7
+#define _URC_CONTINUE_UNWIND	8
+#define _URC_FAILURE		9
+
+#if !LJ_TARGET_ARM
+
+extern uintptr_t _Unwind_GetCFA(_Unwind_Context *);
+extern void _Unwind_SetGR(_Unwind_Context *, int, uintptr_t);
+extern void _Unwind_SetIP(_Unwind_Context *, uintptr_t);
+extern void _Unwind_DeleteException(_Unwind_Exception *);
+extern int _Unwind_RaiseException(_Unwind_Exception *);
+
+#define _UA_SEARCH_PHASE	1
+#define _UA_CLEANUP_PHASE	2
+#define _UA_HANDLER_FRAME	4
+#define _UA_FORCE_UNWIND	8
+
+#define LJ_UEXCLASS		0x4c55414a49543200ULL	/* LUAJIT2\0 */
+#define LJ_UEXCLASS_MAKE(c)	(LJ_UEXCLASS | (uint64_t)(c))
+#define LJ_UEXCLASS_CHECK(cl)	(((cl) ^ LJ_UEXCLASS) <= 0xff)
+#define LJ_UEXCLASS_ERRCODE(cl)	((int)((cl) & 0xff))
+
+/* DWARF2 personality handler referenced from interpreter .eh_frame. */
+LJ_FUNCA int lj_err_unwind_dwarf(int version, int actions,
+  uint64_t uexclass, _Unwind_Exception *uex, _Unwind_Context *ctx)
+{
+  void *cf;
+  lua_State *L;
+  if (version != 1)
+    return _URC_FATAL_PHASE1_ERROR;
+  UNUSED(uexclass);
+  cf = (void *)_Unwind_GetCFA(ctx);
+  L = cframe_L(cf);
+  if ((actions & _UA_SEARCH_PHASE)) {
+#if LJ_UNWIND_EXT
+    if (err_unwind(L, cf, 0) == NULL)
+      return _URC_CONTINUE_UNWIND;
+#endif
+    if (!LJ_UEXCLASS_CHECK(uexclass)) {
+      setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
+    }
+    return _URC_HANDLER_FOUND;
+  }
+  if ((actions & _UA_CLEANUP_PHASE)) {
+    int errcode;
+    if (LJ_UEXCLASS_CHECK(uexclass)) {
+      errcode = LJ_UEXCLASS_ERRCODE(uexclass);
+    } else {
+      if ((actions & _UA_HANDLER_FRAME))
+	_Unwind_DeleteException(uex);
+      errcode = LUA_ERRRUN;
+    }
+#if LJ_UNWIND_EXT
+    cf = err_unwind(L, cf, errcode);
+    if ((actions & _UA_FORCE_UNWIND)) {
+      return _URC_CONTINUE_UNWIND;
+    } else if (cf) {
+      _Unwind_SetGR(ctx, LJ_TARGET_EHRETREG, errcode);
+      _Unwind_SetIP(ctx, (uintptr_t)(cframe_unwind_ff(cf) ?
+				     lj_vm_unwind_ff_eh :
+				     lj_vm_unwind_c_eh));
+      return _URC_INSTALL_CONTEXT;
+    }
+#if LJ_TARGET_X86ORX64
+    else if ((actions & _UA_HANDLER_FRAME)) {
+      /* Workaround for ancient libgcc bug. Still present in RHEL 5.5. :-/
+      ** Real fix: http://gcc.gnu.org/viewcvs/trunk/gcc/unwind-dw2.c?r1=121165&r2=124837&pathrev=153877&diff_format=h
+      */
+      _Unwind_SetGR(ctx, LJ_TARGET_EHRETREG, errcode);
+      _Unwind_SetIP(ctx, (uintptr_t)lj_vm_unwind_rethrow);
+      return _URC_INSTALL_CONTEXT;
+    }
+#endif
+#else
+    /* This is not the proper way to escape from the unwinder. We get away with
+    ** it on non-x64 because the interpreter restores all callee-saved regs.
+    */
+    lj_err_throw(L, errcode);
+#endif
+  }
+  return _URC_CONTINUE_UNWIND;
+}
+
+#if LJ_UNWIND_EXT
+#if LJ_TARGET_OSX || defined(__OpenBSD__)
+/* Sorry, no thread safety for OSX. Complain to Apple, not me. */
+static _Unwind_Exception static_uex;
+#else
+static __thread _Unwind_Exception static_uex;
+#endif
+
+/* Raise DWARF2 exception. */
+static void err_raise_ext(int errcode)
+{
+  static_uex.exclass = LJ_UEXCLASS_MAKE(errcode);
+  static_uex.excleanup = NULL;
+  _Unwind_RaiseException(&static_uex);
+}
+#endif
+
+#else
+
+extern void _Unwind_DeleteException(void *);
+extern int __gnu_unwind_frame (void *, _Unwind_Context *);
+extern int _Unwind_VRS_Set(_Unwind_Context *, int, uint32_t, int, void *);
+extern int _Unwind_VRS_Get(_Unwind_Context *, int, uint32_t, int, void *);
+
+static inline uint32_t _Unwind_GetGR(_Unwind_Context *ctx, int r)
+{
+  uint32_t v;
+  _Unwind_VRS_Get(ctx, 0, r, 0, &v);
+  return v;
+}
+
+static inline void _Unwind_SetGR(_Unwind_Context *ctx, int r, uint32_t v)
+{
+  _Unwind_VRS_Set(ctx, 0, r, 0, &v);
+}
+
+#define _US_VIRTUAL_UNWIND_FRAME	0
+#define _US_UNWIND_FRAME_STARTING	1
+#define _US_ACTION_MASK			3
+#define _US_FORCE_UNWIND		8
+
+/* ARM unwinder personality handler referenced from interpreter .ARM.extab. */
+LJ_FUNCA int lj_err_unwind_arm(int state, void *ucb, _Unwind_Context *ctx)
+{
+  void *cf = (void *)_Unwind_GetGR(ctx, 13);
+  lua_State *L = cframe_L(cf);
+  if ((state & _US_ACTION_MASK) == _US_VIRTUAL_UNWIND_FRAME) {
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
+    return _URC_HANDLER_FOUND;
+  }
+  if ((state&(_US_ACTION_MASK|_US_FORCE_UNWIND)) == _US_UNWIND_FRAME_STARTING) {
+    _Unwind_DeleteException(ucb);
+    _Unwind_SetGR(ctx, 15, (uint32_t)(void *)lj_err_throw);
+    _Unwind_SetGR(ctx, 0, (uint32_t)L);
+    _Unwind_SetGR(ctx, 1, (uint32_t)LUA_ERRRUN);
+    return _URC_INSTALL_CONTEXT;
+  }
+  if (__gnu_unwind_frame(ucb, ctx) != _URC_OK)
+    return _URC_FAILURE;
+  return _URC_CONTINUE_UNWIND;
+}
+
+#endif
+
+#elif LJ_TARGET_X64 && LJ_TARGET_WINDOWS
+
+/*
+** Someone in Redmond owes me several days of my life. A lot of this is
+** undocumented or just plain wrong on MSDN. Some of it can be gathered
+** from 3rd party docs or must be found by trial-and-error. They really
+** don't want you to write your own language-specific exception handler
+** or to interact gracefully with MSVC. :-(
+**
+** Apparently MSVC doesn't call C++ destructors for foreign exceptions
+** unless you compile your C++ code with /EHa. Unfortunately this means
+** catch (...) also catches things like access violations. The use of
+** _set_se_translator doesn't really help, because it requires /EHa, too.
+*/
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+/* Taken from: http://www.nynaeve.net/?p=99 */
+typedef struct UndocumentedDispatcherContext {
+  ULONG64 ControlPc;
+  ULONG64 ImageBase;
+  PRUNTIME_FUNCTION FunctionEntry;
+  ULONG64 EstablisherFrame;
+  ULONG64 TargetIp;
+  PCONTEXT ContextRecord;
+  PEXCEPTION_ROUTINE LanguageHandler;
+  PVOID HandlerData;
+  PUNWIND_HISTORY_TABLE HistoryTable;
+  ULONG ScopeIndex;
+  ULONG Fill0;
+} UndocumentedDispatcherContext;
+
+/* Another wild guess. */
+extern void __DestructExceptionObject(EXCEPTION_RECORD *rec, int nothrow);
+
+#ifdef MINGW_SDK_INIT
+/* Workaround for broken MinGW64 declaration. */
+VOID RtlUnwindEx_FIXED(PVOID,PVOID,PVOID,PVOID,PVOID,PVOID) asm("RtlUnwindEx");
+#define RtlUnwindEx RtlUnwindEx_FIXED
+#endif
+
+#define LJ_MSVC_EXCODE		((DWORD)0xe06d7363)
+#define LJ_GCC_EXCODE		((DWORD)0x20474343)
+
+#define LJ_EXCODE		((DWORD)0xe24c4a00)
+#define LJ_EXCODE_MAKE(c)	(LJ_EXCODE | (DWORD)(c))
+#define LJ_EXCODE_CHECK(cl)	(((cl) ^ LJ_EXCODE) <= 0xff)
+#define LJ_EXCODE_ERRCODE(cl)	((int)((cl) & 0xff))
+
+/* Win64 exception handler for interpreter frame. */
+LJ_FUNCA EXCEPTION_DISPOSITION lj_err_unwind_win64(EXCEPTION_RECORD *rec,
+  void *cf, CONTEXT *ctx, UndocumentedDispatcherContext *dispatch)
+{
+  lua_State *L = cframe_L(cf);
+  int errcode = LJ_EXCODE_CHECK(rec->ExceptionCode) ?
+		LJ_EXCODE_ERRCODE(rec->ExceptionCode) : LUA_ERRRUN;
+  if ((rec->ExceptionFlags & 6)) {  /* EH_UNWINDING|EH_EXIT_UNWIND */
+    /* Unwind internal frames. */
+    err_unwind(L, cf, errcode);
+  } else {
+    void *cf2 = err_unwind(L, cf, 0);
+    if (cf2) {  /* We catch it, so start unwinding the upper frames. */
+      if (rec->ExceptionCode == LJ_MSVC_EXCODE ||
+	  rec->ExceptionCode == LJ_GCC_EXCODE) {
+	__DestructExceptionObject(rec, 1);
+	setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
+      } else if (!LJ_EXCODE_CHECK(rec->ExceptionCode)) {
+	/* Don't catch access violations etc. */
+	return ExceptionContinueSearch;
+      }
+      /* Unwind the stack and call all handlers for all lower C frames
+      ** (including ourselves) again with EH_UNWINDING set. Then set
+      ** rsp = cf, rax = errcode and jump to the specified target.
+      */
+      RtlUnwindEx(cf, (void *)((cframe_unwind_ff(cf2) && errcode != LUA_YIELD) ?
+			       lj_vm_unwind_ff_eh :
+			       lj_vm_unwind_c_eh),
+		  rec, (void *)(uintptr_t)errcode, ctx, dispatch->HistoryTable);
+      /* RtlUnwindEx should never return. */
+    }
+  }
+  return ExceptionContinueSearch;
+}
+
+/* Raise Windows exception. */
+static void err_raise_ext(int errcode)
+{
+  RaiseException(LJ_EXCODE_MAKE(errcode), 1 /* EH_NONCONTINUABLE */, 0, NULL);
+}
+
+#endif
+
+/* -- Error handling ------------------------------------------------------ */
+
+/* Throw error. Find catch frame, unwind stack and continue. */
+LJ_NOINLINE void LJ_FASTCALL lj_err_throw(lua_State *L, int errcode)
+{
+  global_State *g = G(L);
+  lj_trace_abort(g);
+  setgcrefnull(g->jit_L);
+  L->status = 0;
+#if LJ_UNWIND_EXT
+  err_raise_ext(errcode);
+  /*
+  ** A return from this function signals a corrupt C stack that cannot be
+  ** unwound. We have no choice but to call the panic function and exit.
+  **
+  ** Usually this is caused by a C function without unwind information.
+  ** This should never happen on x64, but may happen if you've manually
+  ** enabled LUAJIT_UNWIND_EXTERNAL and forgot to recompile *every*
+  ** non-C++ file with -funwind-tables.
+  */
+  if (G(L)->panic)
+    G(L)->panic(L);
+#else
+  {
+    void *cf = err_unwind(L, NULL, errcode);
+    if (cframe_unwind_ff(cf))
+      lj_vm_unwind_ff(cframe_raw(cf));
+    else
+      lj_vm_unwind_c(cframe_raw(cf), errcode);
+  }
+#endif
+  exit(EXIT_FAILURE);
+}
+
+/* Return string object for error message. */
+LJ_NOINLINE GCstr *lj_err_str(lua_State *L, ErrMsg em)
+{
+  return lj_str_newz(L, err2msg(em));
+}
+
+/* Out-of-memory error. */
+LJ_NOINLINE void lj_err_mem(lua_State *L)
+{
+  if (L->status == LUA_ERRERR+1)  /* Don't touch the stack during lua_open. */
+    lj_vm_unwind_c(L->cframe, LUA_ERRMEM);
+  setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRMEM));
+  lj_err_throw(L, LUA_ERRMEM);
+}
+
+/* Find error function for runtime errors. Requires an extra stack traversal. */
+static ptrdiff_t finderrfunc(lua_State *L)
+{
+  cTValue *frame = L->base-1, *bot = tvref(L->stack);
+  void *cf = L->cframe;
+  while (frame > bot) {
+    lua_assert(cf != NULL);
+    while (cframe_nres(cframe_raw(cf)) < 0) {  /* cframe without frame? */
+      if (frame >= restorestack(L, -cframe_nres(cf)))
+	break;
+      if (cframe_errfunc(cf) >= 0)  /* Error handler not inherited (-1)? */
+	return cframe_errfunc(cf);
+      cf = cframe_prev(cf);  /* Else unwind cframe and continue searching. */
+      if (cf == NULL)
+	return 0;
+    }
+    switch (frame_typep(frame)) {
+    case FRAME_LUA:
+    case FRAME_LUAP:
+      frame = frame_prevl(frame);
+      break;
+    case FRAME_C:
+      cf = cframe_prev(cf);
+      /* fallthrough */
+    case FRAME_CONT:
+#if LJ_HASFFI
+      if ((frame-1)->u32.lo == LJ_CONT_FFI_CALLBACK)
+	cf = cframe_prev(cf);
+#endif
+    case FRAME_VARG:
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_CP:
+      if (cframe_canyield(cf)) return 0;
+      if (cframe_errfunc(cf) >= 0)
+	return cframe_errfunc(cf);
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_PCALL:
+    case FRAME_PCALLH:
+      if (frame_ftsz(frame) >= (ptrdiff_t)(2*sizeof(TValue)))  /* xpcall? */
+	return savestack(L, frame-1);  /* Point to xpcall's errorfunc. */
+      return 0;
+    default:
+      lua_assert(0);
+      return 0;
+    }
+  }
+  return 0;
+}
+
+/* Runtime error. */
+LJ_NOINLINE void lj_err_run(lua_State *L)
+{
+  ptrdiff_t ef = finderrfunc(L);
+  if (ef) {
+    TValue *errfunc = restorestack(L, ef);
+    TValue *top = L->top;
+    lj_trace_abort(G(L));
+    if (!tvisfunc(errfunc) || L->status == LUA_ERRERR) {
+      setstrV(L, top-1, lj_err_str(L, LJ_ERR_ERRERR));
+      lj_err_throw(L, LUA_ERRERR);
+    }
+    L->status = LUA_ERRERR;
+    copyTV(L, top, top-1);
+    copyTV(L, top-1, errfunc);
+    L->top = top+1;
+    lj_vm_call(L, top, 1+1);  /* Stack: |errfunc|msg| -> |msg| */
+  }
+  lj_err_throw(L, LUA_ERRRUN);
+}
+
+/* Formatted runtime error message. */
+LJ_NORET LJ_NOINLINE static void err_msgv(lua_State *L, ErrMsg em, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, em);
+  if (curr_funcisL(L)) L->top = curr_topL(L);
+  msg = lj_str_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  lj_debug_addloc(L, msg, L->base-1, NULL);
+  lj_err_run(L);
+}
+
+/* Non-vararg variant for better calling conventions. */
+LJ_NOINLINE void lj_err_msg(lua_State *L, ErrMsg em)
+{
+  err_msgv(L, em);
+}
+
+/* Lexer error. */
+LJ_NOINLINE void lj_err_lex(lua_State *L, GCstr *src, const char *tok,
+			    BCLine line, ErrMsg em, va_list argp)
+{
+  char buff[LUA_IDSIZE];
+  const char *msg;
+  lj_debug_shortname(buff, src);
+  msg = lj_str_pushvf(L, err2msg(em), argp);
+  msg = lj_str_pushf(L, "%s:%d: %s", buff, line, msg);
+  if (tok)
+    lj_str_pushf(L, err2msg(LJ_ERR_XNEAR), msg, tok);
+  lj_err_throw(L, LUA_ERRSYNTAX);
+}
+
+/* Typecheck error for operands. */
+LJ_NOINLINE void lj_err_optype(lua_State *L, cTValue *o, ErrMsg opm)
+{
+  const char *tname = lj_typename(o);
+  const char *opname = err2msg(opm);
+  if (curr_funcisL(L)) {
+    GCproto *pt = curr_proto(L);
+    const BCIns *pc = cframe_Lpc(L) - 1;
+    const char *oname = NULL;
+    const char *kind = lj_debug_slotname(pt, pc, (BCReg)(o-L->base), &oname);
+    if (kind)
+      err_msgv(L, LJ_ERR_BADOPRT, opname, kind, oname, tname);
+  }
+  err_msgv(L, LJ_ERR_BADOPRV, opname, tname);
+}
+
+/* Typecheck error for ordered comparisons. */
+LJ_NOINLINE void lj_err_comp(lua_State *L, cTValue *o1, cTValue *o2)
+{
+  const char *t1 = lj_typename(o1);
+  const char *t2 = lj_typename(o2);
+  err_msgv(L, t1 == t2 ? LJ_ERR_BADCMPV : LJ_ERR_BADCMPT, t1, t2);
+  /* This assumes the two "boolean" entries are commoned by the C compiler. */
+}
+
+/* Typecheck error for __call. */
+LJ_NOINLINE void lj_err_optype_call(lua_State *L, TValue *o)
+{
+  /* Gross hack if lua_[p]call or pcall/xpcall fail for a non-callable object:
+  ** L->base still points to the caller. So add a dummy frame with L instead
+  ** of a function. See lua_getstack().
+  */
+  const BCIns *pc = cframe_Lpc(L);
+  if (((ptrdiff_t)pc & FRAME_TYPE) != FRAME_LUA) {
+    const char *tname = lj_typename(o);
+    setframe_pc(o, pc);
+    setframe_gc(o, obj2gco(L));
+    L->top = L->base = o+1;
+    err_msgv(L, LJ_ERR_BADCALL, tname);
+  }
+  lj_err_optype(L, o, LJ_ERR_OPCALL);
+}
+
+/* Error in context of caller. */
+LJ_NOINLINE void lj_err_callermsg(lua_State *L, const char *msg)
+{
+  TValue *frame = L->base-1;
+  TValue *pframe = NULL;
+  if (frame_islua(frame)) {
+    pframe = frame_prevl(frame);
+  } else if (frame_iscont(frame)) {
+#if LJ_HASFFI
+    if ((frame-1)->u32.lo == LJ_CONT_FFI_CALLBACK) {
+      pframe = frame;
+      frame = NULL;
+    } else
+#endif
+    {
+      pframe = frame_prevd(frame);
+#if LJ_HASFFI
+      /* Remove frame for FFI metamethods. */
+      if (frame_func(frame)->c.ffid >= FF_ffi_meta___index &&
+	  frame_func(frame)->c.ffid <= FF_ffi_meta___tostring) {
+	L->base = pframe+1;
+	L->top = frame;
+	setcframe_pc(cframe_raw(L->cframe), frame_contpc(frame));
+      }
+#endif
+    }
+  }
+  lj_debug_addloc(L, msg, pframe, frame);
+  lj_err_run(L);
+}
+
+/* Formatted error in context of caller. */
+LJ_NOINLINE void lj_err_callerv(lua_State *L, ErrMsg em, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, em);
+  msg = lj_str_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  lj_err_callermsg(L, msg);
+}
+
+/* Error in context of caller. */
+LJ_NOINLINE void lj_err_caller(lua_State *L, ErrMsg em)
+{
+  lj_err_callermsg(L, err2msg(em));
+}
+
+/* Argument error message. */
+LJ_NORET LJ_NOINLINE static void err_argmsg(lua_State *L, int narg,
+					    const char *msg)
+{
+  const char *fname = "?";
+  const char *ftype = lj_debug_funcname(L, L->base - 1, &fname);
+  if (narg < 0 && narg > LUA_REGISTRYINDEX)
+    narg = (int)(L->top - L->base) + narg + 1;
+  if (ftype && ftype[3] == 'h' && --narg == 0)  /* Check for "method". */
+    msg = lj_str_pushf(L, err2msg(LJ_ERR_BADSELF), fname, msg);
+  else
+    msg = lj_str_pushf(L, err2msg(LJ_ERR_BADARG), narg, fname, msg);
+  lj_err_callermsg(L, msg);
+}
+
+/* Formatted argument error. */
+LJ_NOINLINE void lj_err_argv(lua_State *L, int narg, ErrMsg em, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, em);
+  msg = lj_str_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  err_argmsg(L, narg, msg);
+}
+
+/* Argument error. */
+LJ_NOINLINE void lj_err_arg(lua_State *L, int narg, ErrMsg em)
+{
+  err_argmsg(L, narg, err2msg(em));
+}
+
+/* Typecheck error for arguments. */
+LJ_NOINLINE void lj_err_argtype(lua_State *L, int narg, const char *xname)
+{
+  TValue *o = narg < 0 ? L->top + narg : L->base + narg-1;
+  const char *tname = o < L->top ? lj_typename(o) : lj_obj_typename[0];
+  const char *msg = lj_str_pushf(L, err2msg(LJ_ERR_BADTYPE), xname, tname);
+  err_argmsg(L, narg, msg);
+}
+
+/* Typecheck error for arguments. */
+LJ_NOINLINE void lj_err_argt(lua_State *L, int narg, int tt)
+{
+  lj_err_argtype(L, narg, lj_obj_typename[tt+1]);
+}
+
+/* -- Public error handling API ------------------------------------------- */
+
+LUA_API lua_CFunction lua_atpanic(lua_State *L, lua_CFunction panicf)
+{
+  lua_CFunction old = G(L)->panic;
+  G(L)->panic = panicf;
+  return old;
+}
+
+/* Forwarders for the public API (C calling convention and no LJ_NORET). */
+LUA_API int lua_error(lua_State *L)
+{
+  lj_err_run(L);
+  return 0;  /* unreachable */
+}
+
+LUALIB_API int luaL_argerror(lua_State *L, int narg, const char *msg)
+{
+  err_argmsg(L, narg, msg);
+  return 0;  /* unreachable */
+}
+
+LUALIB_API int luaL_typerror(lua_State *L, int narg, const char *xname)
+{
+  lj_err_argtype(L, narg, xname);
+  return 0;  /* unreachable */
+}
+
+LUALIB_API void luaL_where(lua_State *L, int level)
+{
+  int size;
+  cTValue *frame = lj_debug_frame(L, level, &size);
+  lj_debug_addloc(L, "", frame, size ? frame+size : NULL);
+}
+
+LUALIB_API int luaL_error(lua_State *L, const char *fmt, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, fmt);
+  msg = lj_str_pushvf(L, fmt, argp);
+  va_end(argp);
+  lj_err_callermsg(L, msg);
+  return 0;  /* unreachable */
+}
+
diff --git a/lib/luajit/src/lj_err.h b/lib/luajit/src/lj_err.h
new file mode 100644
index 00000000..7ea512a3
--- /dev/null
+++ b/lib/luajit/src/lj_err.h
@@ -0,0 +1,41 @@
+/*
+** Error handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_ERR_H
+#define _LJ_ERR_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+
+typedef enum {
+#define ERRDEF(name, msg) \
+  LJ_ERR_##name, LJ_ERR_##name##_ = LJ_ERR_##name + sizeof(msg)-1,
+#include "lj_errmsg.h"
+  LJ_ERR__MAX
+} ErrMsg;
+
+LJ_DATA const char *lj_err_allmsg;
+#define err2msg(em)	(lj_err_allmsg+(int)(em))
+
+LJ_FUNC GCstr *lj_err_str(lua_State *L, ErrMsg em);
+LJ_FUNCA_NORET void LJ_FASTCALL lj_err_throw(lua_State *L, int errcode);
+LJ_FUNC_NORET void lj_err_mem(lua_State *L);
+LJ_FUNC_NORET void lj_err_run(lua_State *L);
+LJ_FUNC_NORET void lj_err_msg(lua_State *L, ErrMsg em);
+LJ_FUNC_NORET void lj_err_lex(lua_State *L, GCstr *src, const char *tok,
+			      BCLine line, ErrMsg em, va_list argp);
+LJ_FUNC_NORET void lj_err_optype(lua_State *L, cTValue *o, ErrMsg opm);
+LJ_FUNC_NORET void lj_err_comp(lua_State *L, cTValue *o1, cTValue *o2);
+LJ_FUNC_NORET void lj_err_optype_call(lua_State *L, TValue *o);
+LJ_FUNC_NORET void lj_err_callermsg(lua_State *L, const char *msg);
+LJ_FUNC_NORET void lj_err_callerv(lua_State *L, ErrMsg em, ...);
+LJ_FUNC_NORET void lj_err_caller(lua_State *L, ErrMsg em);
+LJ_FUNC_NORET void lj_err_arg(lua_State *L, int narg, ErrMsg em);
+LJ_FUNC_NORET void lj_err_argv(lua_State *L, int narg, ErrMsg em, ...);
+LJ_FUNC_NORET void lj_err_argtype(lua_State *L, int narg, const char *xname);
+LJ_FUNC_NORET void lj_err_argt(lua_State *L, int narg, int tt);
+
+#endif
diff --git a/lib/luajit/src/lj_errmsg.h b/lib/luajit/src/lj_errmsg.h
new file mode 100644
index 00000000..137831eb
--- /dev/null
+++ b/lib/luajit/src/lj_errmsg.h
@@ -0,0 +1,193 @@
+/*
+** VM error messages.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* This file may be included multiple times with different ERRDEF macros. */
+
+/* Basic error handling. */
+ERRDEF(ERRMEM,	"not enough memory")
+ERRDEF(ERRERR,	"error in error handling")
+ERRDEF(ERRCPP,	"C++ exception")
+
+/* Allocations. */
+ERRDEF(STROV,	"string length overflow")
+ERRDEF(UDATAOV,	"userdata length overflow")
+ERRDEF(STKOV,	"stack overflow")
+ERRDEF(STKOVM,	"stack overflow (%s)")
+ERRDEF(TABOV,	"table overflow")
+
+/* Table indexing. */
+ERRDEF(NANIDX,	"table index is NaN")
+ERRDEF(NILIDX,	"table index is nil")
+ERRDEF(NEXTIDX,	"invalid key to " LUA_QL("next"))
+
+/* Metamethod resolving. */
+ERRDEF(BADCALL,	"attempt to call a %s value")
+ERRDEF(BADOPRT,	"attempt to %s %s " LUA_QS " (a %s value)")
+ERRDEF(BADOPRV,	"attempt to %s a %s value")
+ERRDEF(BADCMPT,	"attempt to compare %s with %s")
+ERRDEF(BADCMPV,	"attempt to compare two %s values")
+ERRDEF(GETLOOP,	"loop in gettable")
+ERRDEF(SETLOOP,	"loop in settable")
+ERRDEF(OPCALL,	"call")
+ERRDEF(OPINDEX,	"index")
+ERRDEF(OPARITH,	"perform arithmetic on")
+ERRDEF(OPCAT,	"concatenate")
+ERRDEF(OPLEN,	"get length of")
+
+/* Type checks. */
+ERRDEF(BADSELF,	"calling " LUA_QS " on bad self (%s)")
+ERRDEF(BADARG,	"bad argument #%d to " LUA_QS " (%s)")
+ERRDEF(BADTYPE,	"%s expected, got %s")
+ERRDEF(BADVAL,	"invalid value")
+ERRDEF(NOVAL,	"value expected")
+ERRDEF(NOCORO,	"coroutine expected")
+ERRDEF(NOTABN,	"nil or table expected")
+ERRDEF(NOLFUNC,	"Lua function expected")
+ERRDEF(NOFUNCL,	"function or level expected")
+ERRDEF(NOSFT,	"string/function/table expected")
+ERRDEF(NOPROXY,	"boolean or proxy expected")
+ERRDEF(FORINIT,	LUA_QL("for") " initial value must be a number")
+ERRDEF(FORLIM,	LUA_QL("for") " limit must be a number")
+ERRDEF(FORSTEP,	LUA_QL("for") " step must be a number")
+
+/* C API checks. */
+ERRDEF(NOENV,	"no calling environment")
+ERRDEF(CYIELD,	"attempt to yield across C-call boundary")
+ERRDEF(BADLU,	"bad light userdata pointer")
+ERRDEF(NOGCMM,	"bad action while in __gc metamethod")
+#if LJ_TARGET_WINDOWS
+ERRDEF(BADFPU,	"bad FPU precision (use D3DCREATE_FPU_PRESERVE with DirectX)")
+#endif
+
+/* Standard library function errors. */
+ERRDEF(ASSERT,	"assertion failed!")
+ERRDEF(PROTMT,	"cannot change a protected metatable")
+ERRDEF(UNPACK,	"too many results to unpack")
+ERRDEF(RDRSTR,	"reader function must return a string")
+ERRDEF(PRTOSTR,	LUA_QL("tostring") " must return a string to " LUA_QL("print"))
+ERRDEF(IDXRNG,	"index out of range")
+ERRDEF(BASERNG,	"base out of range")
+ERRDEF(LVLRNG,	"level out of range")
+ERRDEF(INVLVL,	"invalid level")
+ERRDEF(INVOPT,	"invalid option")
+ERRDEF(INVOPTM,	"invalid option " LUA_QS)
+ERRDEF(INVFMT,	"invalid format")
+ERRDEF(SETFENV,	LUA_QL("setfenv") " cannot change environment of given object")
+ERRDEF(CORUN,	"cannot resume running coroutine")
+ERRDEF(CODEAD,	"cannot resume dead coroutine")
+ERRDEF(COSUSP,	"cannot resume non-suspended coroutine")
+ERRDEF(TABINS,	"wrong number of arguments to " LUA_QL("insert"))
+ERRDEF(TABCAT,	"invalid value (%s) at index %d in table for " LUA_QL("concat"))
+ERRDEF(TABSORT,	"invalid order function for sorting")
+ERRDEF(IOCLFL,	"attempt to use a closed file")
+ERRDEF(IOSTDCL,	"standard file is closed")
+ERRDEF(OSUNIQF,	"unable to generate a unique filename")
+ERRDEF(OSDATEF,	"field " LUA_QS " missing in date table")
+ERRDEF(STRDUMP,	"unable to dump given function")
+ERRDEF(STRSLC,	"string slice too long")
+ERRDEF(STRPATB,	"missing " LUA_QL("[") " after " LUA_QL("%f") " in pattern")
+ERRDEF(STRPATC,	"invalid pattern capture")
+ERRDEF(STRPATE,	"malformed pattern (ends with " LUA_QL("%") ")")
+ERRDEF(STRPATM,	"malformed pattern (missing " LUA_QL("]") ")")
+ERRDEF(STRPATU,	"unbalanced pattern")
+ERRDEF(STRPATX,	"pattern too complex")
+ERRDEF(STRCAPI,	"invalid capture index")
+ERRDEF(STRCAPN,	"too many captures")
+ERRDEF(STRCAPU,	"unfinished capture")
+ERRDEF(STRFMTO,	"invalid option " LUA_QL("%%%c") " to " LUA_QL("format"))
+ERRDEF(STRFMTR,	"invalid format (repeated flags)")
+ERRDEF(STRFMTW,	"invalid format (width or precision too long)")
+ERRDEF(STRGSRV,	"invalid replacement value (a %s)")
+ERRDEF(BADMODN,	"name conflict for module " LUA_QS)
+#if LJ_HASJIT
+ERRDEF(JITPROT,	"runtime code generation failed, restricted kernel?")
+#if LJ_TARGET_X86ORX64
+ERRDEF(NOJIT,	"JIT compiler disabled, CPU does not support SSE2")
+#else
+ERRDEF(NOJIT,	"JIT compiler disabled")
+#endif
+#elif defined(LJ_ARCH_NOJIT)
+ERRDEF(NOJIT,	"no JIT compiler for this architecture (yet)")
+#else
+ERRDEF(NOJIT,	"JIT compiler permanently disabled by build option")
+#endif
+ERRDEF(JITOPT,	"unknown or malformed optimization flag " LUA_QS)
+
+/* Lexer/parser errors. */
+ERRDEF(XMODE,	"attempt to load chunk with wrong mode")
+ERRDEF(XNEAR,	"%s near " LUA_QS)
+ERRDEF(XELEM,	"lexical element too long")
+ERRDEF(XLINES,	"chunk has too many lines")
+ERRDEF(XLEVELS,	"chunk has too many syntax levels")
+ERRDEF(XNUMBER,	"malformed number")
+ERRDEF(XLSTR,	"unfinished long string")
+ERRDEF(XLCOM,	"unfinished long comment")
+ERRDEF(XSTR,	"unfinished string")
+ERRDEF(XESC,	"invalid escape sequence")
+ERRDEF(XLDELIM,	"invalid long string delimiter")
+ERRDEF(XTOKEN,	LUA_QS " expected")
+ERRDEF(XJUMP,	"control structure too long")
+ERRDEF(XSLOTS,	"function or expression too complex")
+ERRDEF(XLIMC,	"chunk has more than %d local variables")
+ERRDEF(XLIMM,	"main function has more than %d %s")
+ERRDEF(XLIMF,	"function at line %d has more than %d %s")
+ERRDEF(XMATCH,	LUA_QS " expected (to close " LUA_QS " at line %d)")
+ERRDEF(XFIXUP,	"function too long for return fixup")
+ERRDEF(XPARAM,	"<name> or " LUA_QL("...") " expected")
+#if !LJ_52
+ERRDEF(XAMBIG,	"ambiguous syntax (function call x new statement)")
+#endif
+ERRDEF(XFUNARG,	"function arguments expected")
+ERRDEF(XSYMBOL,	"unexpected symbol")
+ERRDEF(XDOTS,	"cannot use " LUA_QL("...") " outside a vararg function")
+ERRDEF(XSYNTAX,	"syntax error")
+ERRDEF(XFOR,	LUA_QL("=") " or " LUA_QL("in") " expected")
+ERRDEF(XBREAK,	"no loop to break")
+ERRDEF(XLUNDEF,	"undefined label " LUA_QS)
+ERRDEF(XLDUP,	"duplicate label " LUA_QS)
+ERRDEF(XGSCOPE,	"<goto %s> jumps into the scope of local " LUA_QS)
+
+/* Bytecode reader errors. */
+ERRDEF(BCFMT,	"cannot load incompatible bytecode")
+ERRDEF(BCBAD,	"cannot load malformed bytecode")
+
+#if LJ_HASFFI
+/* FFI errors. */
+ERRDEF(FFI_INVTYPE,	"invalid C type")
+ERRDEF(FFI_INVSIZE,	"size of C type is unknown or too large")
+ERRDEF(FFI_BADSCL,	"bad storage class")
+ERRDEF(FFI_DECLSPEC,	"declaration specifier expected")
+ERRDEF(FFI_BADTAG,	"undeclared or implicit tag " LUA_QS)
+ERRDEF(FFI_REDEF,	"attempt to redefine " LUA_QS)
+ERRDEF(FFI_NUMPARAM,	"wrong number of type parameters")
+ERRDEF(FFI_INITOV,	"too many initializers for " LUA_QS)
+ERRDEF(FFI_BADCONV,	"cannot convert " LUA_QS " to " LUA_QS)
+ERRDEF(FFI_BADLEN,	"attempt to get length of " LUA_QS)
+ERRDEF(FFI_BADCONCAT,	"attempt to concatenate " LUA_QS " and " LUA_QS)
+ERRDEF(FFI_BADARITH,	"attempt to perform arithmetic on " LUA_QS " and " LUA_QS)
+ERRDEF(FFI_BADCOMP,	"attempt to compare " LUA_QS " with " LUA_QS)
+ERRDEF(FFI_BADCALL,	LUA_QS " is not callable")
+ERRDEF(FFI_NUMARG,	"wrong number of arguments for function call")
+ERRDEF(FFI_BADMEMBER,	LUA_QS " has no member named " LUA_QS)
+ERRDEF(FFI_BADIDX,	LUA_QS " cannot be indexed")
+ERRDEF(FFI_BADIDXW,	LUA_QS " cannot be indexed with " LUA_QS)
+ERRDEF(FFI_BADMM,	LUA_QS " has no " LUA_QS " metamethod")
+ERRDEF(FFI_WRCONST,	"attempt to write to constant location")
+ERRDEF(FFI_NODECL,	"missing declaration for symbol " LUA_QS)
+ERRDEF(FFI_BADCBACK,	"bad callback")
+#if LJ_OS_NOJIT
+ERRDEF(FFI_CBACKOV,	"no support for callbacks on this OS")
+#else
+ERRDEF(FFI_CBACKOV,	"too many callbacks")
+#endif
+ERRDEF(FFI_NYIPACKBIT,	"NYI: packed bit fields")
+ERRDEF(FFI_NYICALL,	"NYI: cannot call this C function (yet)")
+#endif
+
+#undef ERRDEF
+
+/* Detecting unused error messages:
+   awk -F, '/^ERRDEF/ { gsub(/ERRDEF./, ""); printf "grep -q LJ_ERR_%s *.[ch] || echo %s\n", $1, $1}' lj_errmsg.h | sh
+*/
diff --git a/lib/luajit/src/lj_ff.h b/lib/luajit/src/lj_ff.h
new file mode 100644
index 00000000..d91a7395
--- /dev/null
+++ b/lib/luajit/src/lj_ff.h
@@ -0,0 +1,18 @@
+/*
+** Fast function IDs.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FF_H
+#define _LJ_FF_H
+
+/* Fast function ID. */
+typedef enum {
+  FF_LUA_ = FF_LUA,	/* Lua function (must be 0). */
+  FF_C_ = FF_C,		/* Regular C function (must be 1). */
+#define FFDEF(name)	FF_##name,
+#include "lj_ffdef.h"
+  FF__MAX
+} FastFunc;
+
+#endif
diff --git a/lib/luajit/src/lj_ffrecord.c b/lib/luajit/src/lj_ffrecord.c
new file mode 100644
index 00000000..794bbd43
--- /dev/null
+++ b/lib/luajit/src/lj_ffrecord.c
@@ -0,0 +1,888 @@
+/*
+** Fast function call recorder.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_ffrecord_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_record.h"
+#include "lj_ffrecord.h"
+#include "lj_crecord.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* -- Fast function recording handlers ------------------------------------ */
+
+/* Conventions for fast function call handlers:
+**
+** The argument slots start at J->base[0]. All of them are guaranteed to be
+** valid and type-specialized references. J->base[J->maxslot] is set to 0
+** as a sentinel. The runtime argument values start at rd->argv[0].
+**
+** In general fast functions should check for presence of all of their
+** arguments and for the correct argument types. Some simplifications
+** are allowed if the interpreter throws instead. But even if recording
+** is aborted, the generated IR must be consistent (no zero-refs).
+**
+** The number of results in rd->nres is set to 1. Handlers that return
+** a different number of results need to override it. A negative value
+** prevents return processing (e.g. for pending calls).
+**
+** Results need to be stored starting at J->base[0]. Return processing
+** moves them to the right slots later.
+**
+** The per-ffid auxiliary data is the value of the 2nd part of the
+** LJLIB_REC() annotation. This allows handling similar functionality
+** in a common handler.
+*/
+
+/* Type of handler to record a fast function. */
+typedef void (LJ_FASTCALL *RecordFunc)(jit_State *J, RecordFFData *rd);
+
+/* Get runtime value of int argument. */
+static int32_t argv2int(jit_State *J, TValue *o)
+{
+  if (!lj_strscan_numberobj(o))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  return tvisint(o) ? intV(o) : lj_num2int(numV(o));
+}
+
+/* Get runtime value of string argument. */
+static GCstr *argv2str(jit_State *J, TValue *o)
+{
+  if (LJ_LIKELY(tvisstr(o))) {
+    return strV(o);
+  } else {
+    GCstr *s;
+    if (!tvisnumber(o))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    if (tvisint(o))
+      s = lj_str_fromint(J->L, intV(o));
+    else
+      s = lj_str_fromnum(J->L, &o->n);
+    setstrV(J->L, o, s);
+    return s;
+  }
+}
+
+/* Return number of results wanted by caller. */
+static ptrdiff_t results_wanted(jit_State *J)
+{
+  TValue *frame = J->L->base-1;
+  if (frame_islua(frame))
+    return (ptrdiff_t)bc_b(frame_pc(frame)[-1]) - 1;
+  else
+    return -1;
+}
+
+/* Throw error for unsupported variant of fast function. */
+LJ_NORET static void recff_nyiu(jit_State *J)
+{
+  setfuncV(J->L, &J->errinfo, J->fn);
+  lj_trace_err_info(J, LJ_TRERR_NYIFFU);
+}
+
+/* Fallback handler for all fast functions that are not recorded (yet). */
+static void LJ_FASTCALL recff_nyi(jit_State *J, RecordFFData *rd)
+{
+  setfuncV(J->L, &J->errinfo, J->fn);
+  lj_trace_err_info(J, LJ_TRERR_NYIFF);
+  UNUSED(rd);
+}
+
+/* C functions can have arbitrary side-effects and are not recorded (yet). */
+static void LJ_FASTCALL recff_c(jit_State *J, RecordFFData *rd)
+{
+  setfuncV(J->L, &J->errinfo, J->fn);
+  lj_trace_err_info(J, LJ_TRERR_NYICF);
+  UNUSED(rd);
+}
+
+/* -- Base library fast functions ----------------------------------------- */
+
+static void LJ_FASTCALL recff_assert(jit_State *J, RecordFFData *rd)
+{
+  /* Arguments already specialized. The interpreter throws for nil/false. */
+  rd->nres = J->maxslot;  /* Pass through all arguments. */
+}
+
+static void LJ_FASTCALL recff_type(jit_State *J, RecordFFData *rd)
+{
+  /* Arguments already specialized. Result is a constant string. Neat, huh? */
+  uint32_t t;
+  if (tvisnumber(&rd->argv[0]))
+    t = ~LJ_TNUMX;
+  else if (LJ_64 && tvislightud(&rd->argv[0]))
+    t = ~LJ_TLIGHTUD;
+  else
+    t = ~itype(&rd->argv[0]);
+  J->base[0] = lj_ir_kstr(J, strV(&J->fn->c.upvalue[t]));
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_getmetatable(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tr) {
+    RecordIndex ix;
+    ix.tab = tr;
+    copyTV(J->L, &ix.tabv, &rd->argv[0]);
+    if (lj_record_mm_lookup(J, &ix, MM_metatable))
+      J->base[0] = ix.mobj;
+    else
+      J->base[0] = ix.mt;
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_setmetatable(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  TRef mt = J->base[1];
+  if (tref_istab(tr) && (tref_istab(mt) || (mt && tref_isnil(mt)))) {
+    TRef fref, mtref;
+    RecordIndex ix;
+    ix.tab = tr;
+    copyTV(J->L, &ix.tabv, &rd->argv[0]);
+    lj_record_mm_lookup(J, &ix, MM_metatable); /* Guard for no __metatable. */
+    fref = emitir(IRT(IR_FREF, IRT_P32), tr, IRFL_TAB_META);
+    mtref = tref_isnil(mt) ? lj_ir_knull(J, IRT_TAB) : mt;
+    emitir(IRT(IR_FSTORE, IRT_TAB), fref, mtref);
+    if (!tref_isnil(mt))
+      emitir(IRT(IR_TBAR, IRT_TAB), tr, 0);
+    J->base[0] = tr;
+    J->needsnap = 1;
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_rawget(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0]; ix.key = J->base[1];
+  if (tref_istab(ix.tab) && ix.key) {
+    ix.val = 0; ix.idxchain = 0;
+    settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
+    copyTV(J->L, &ix.keyv, &rd->argv[1]);
+    J->base[0] = lj_record_idx(J, &ix);
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_rawset(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0]; ix.key = J->base[1]; ix.val = J->base[2];
+  if (tref_istab(ix.tab) && ix.key && ix.val) {
+    ix.idxchain = 0;
+    settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
+    copyTV(J->L, &ix.keyv, &rd->argv[1]);
+    copyTV(J->L, &ix.valv, &rd->argv[2]);
+    lj_record_idx(J, &ix);
+    /* Pass through table at J->base[0] as result. */
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_rawequal(jit_State *J, RecordFFData *rd)
+{
+  TRef tra = J->base[0];
+  TRef trb = J->base[1];
+  if (tra && trb) {
+    int diff = lj_record_objcmp(J, tra, trb, &rd->argv[0], &rd->argv[1]);
+    J->base[0] = diff ? TREF_FALSE : TREF_TRUE;
+  }  /* else: Interpreter will throw. */
+}
+
+#if LJ_52
+static void LJ_FASTCALL recff_rawlen(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tref_isstr(tr))
+    J->base[0] = emitir(IRTI(IR_FLOAD), tr, IRFL_STR_LEN);
+  else if (tref_istab(tr))
+    J->base[0] = lj_ir_call(J, IRCALL_lj_tab_len, tr);
+  /* else: Interpreter will throw. */
+  UNUSED(rd);
+}
+#endif
+
+/* Determine mode of select() call. */
+int32_t lj_ffrecord_select_mode(jit_State *J, TRef tr, TValue *tv)
+{
+  if (tref_isstr(tr) && *strVdata(tv) == '#') {  /* select('#', ...) */
+    if (strV(tv)->len == 1) {
+      emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, strV(tv)));
+    } else {
+      TRef trptr = emitir(IRT(IR_STRREF, IRT_P32), tr, lj_ir_kint(J, 0));
+      TRef trchar = emitir(IRT(IR_XLOAD, IRT_U8), trptr, IRXLOAD_READONLY);
+      emitir(IRTG(IR_EQ, IRT_INT), trchar, lj_ir_kint(J, '#'));
+    }
+    return 0;
+  } else {  /* select(n, ...) */
+    int32_t start = argv2int(J, tv);
+    if (start == 0) lj_trace_err(J, LJ_TRERR_BADTYPE);  /* A bit misleading. */
+    return start;
+  }
+}
+
+static void LJ_FASTCALL recff_select(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tr) {
+    ptrdiff_t start = lj_ffrecord_select_mode(J, tr, &rd->argv[0]);
+    if (start == 0) {  /* select('#', ...) */
+      J->base[0] = lj_ir_kint(J, J->maxslot - 1);
+    } else if (tref_isk(tr)) {  /* select(k, ...) */
+      ptrdiff_t n = (ptrdiff_t)J->maxslot;
+      if (start < 0) start += n;
+      else if (start > n) start = n;
+      rd->nres = n - start;
+      if (start >= 1) {
+	ptrdiff_t i;
+	for (i = 0; i < n - start; i++)
+	  J->base[i] = J->base[start+i];
+      }  /* else: Interpreter will throw. */
+    } else {
+      recff_nyiu(J);
+    }
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_tonumber(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  TRef base = J->base[1];
+  if (tr && !tref_isnil(base)) {
+    base = lj_opt_narrow_toint(J, base);
+    if (!tref_isk(base) || IR(tref_ref(base))->i != 10)
+      recff_nyiu(J);
+  }
+  if (tref_isnumber_str(tr)) {
+    if (tref_isstr(tr)) {
+      TValue tmp;
+      if (!lj_strscan_num(strV(&rd->argv[0]), &tmp))
+	recff_nyiu(J);  /* Would need an inverted STRTO for this case. */
+      tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    }
+#if LJ_HASFFI
+  } else if (tref_iscdata(tr)) {
+    lj_crecord_tonumber(J, rd);
+    return;
+#endif
+  } else {
+    tr = TREF_NIL;
+  }
+  J->base[0] = tr;
+  UNUSED(rd);
+}
+
+static TValue *recff_metacall_cp(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  lj_record_tailcall(J, 0, 1);
+  UNUSED(L); UNUSED(dummy);
+  return NULL;
+}
+
+static int recff_metacall(jit_State *J, RecordFFData *rd, MMS mm)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0];
+  copyTV(J->L, &ix.tabv, &rd->argv[0]);
+  if (lj_record_mm_lookup(J, &ix, mm)) {  /* Has metamethod? */
+    int errcode;
+    TValue argv0;
+    /* Temporarily insert metamethod below object. */
+    J->base[1] = J->base[0];
+    J->base[0] = ix.mobj;
+    copyTV(J->L, &argv0, &rd->argv[0]);
+    copyTV(J->L, &rd->argv[1], &rd->argv[0]);
+    copyTV(J->L, &rd->argv[0], &ix.mobjv);
+    /* Need to protect lj_record_tailcall because it may throw. */
+    errcode = lj_vm_cpcall(J->L, NULL, J, recff_metacall_cp);
+    /* Always undo Lua stack changes to avoid confusing the interpreter. */
+    copyTV(J->L, &rd->argv[0], &argv0);
+    if (errcode)
+      lj_err_throw(J->L, errcode);  /* Propagate errors. */
+    rd->nres = -1;  /* Pending call. */
+    return 1;  /* Tailcalled to metamethod. */
+  }
+  return 0;
+}
+
+static void LJ_FASTCALL recff_tostring(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tref_isstr(tr)) {
+    /* Ignore __tostring in the string base metatable. */
+    /* Pass on result in J->base[0]. */
+  } else if (!recff_metacall(J, rd, MM_tostring)) {
+    if (tref_isnumber(tr)) {
+      J->base[0] = emitir(IRT(IR_TOSTR, IRT_STR), tr, 0);
+    } else if (tref_ispri(tr)) {
+      J->base[0] = lj_ir_kstr(J, strV(&J->fn->c.upvalue[tref_type(tr)]));
+    } else {
+      recff_nyiu(J);
+    }
+  }
+}
+
+static void LJ_FASTCALL recff_ipairs_aux(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0];
+  if (tref_istab(ix.tab)) {
+    if (!tvisnumber(&rd->argv[1]))  /* No support for string coercion. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    setintV(&ix.keyv, numberVint(&rd->argv[1])+1);
+    settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
+    ix.val = 0; ix.idxchain = 0;
+    ix.key = lj_opt_narrow_toint(J, J->base[1]);
+    J->base[0] = ix.key = emitir(IRTI(IR_ADD), ix.key, lj_ir_kint(J, 1));
+    J->base[1] = lj_record_idx(J, &ix);
+    rd->nres = tref_isnil(J->base[1]) ? 0 : 2;
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_ipairs(jit_State *J, RecordFFData *rd)
+{
+  if (!(LJ_52 && recff_metacall(J, rd, MM_ipairs))) {
+    TRef tab = J->base[0];
+    if (tref_istab(tab)) {
+      J->base[0] = lj_ir_kfunc(J, funcV(&J->fn->c.upvalue[0]));
+      J->base[1] = tab;
+      J->base[2] = lj_ir_kint(J, 0);
+      rd->nres = 3;
+    }  /* else: Interpreter will throw. */
+  }
+}
+
+static void LJ_FASTCALL recff_pcall(jit_State *J, RecordFFData *rd)
+{
+  if (J->maxslot >= 1) {
+    lj_record_call(J, 0, J->maxslot - 1);
+    rd->nres = -1;  /* Pending call. */
+  }  /* else: Interpreter will throw. */
+}
+
+static TValue *recff_xpcall_cp(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  lj_record_call(J, 1, J->maxslot - 2);
+  UNUSED(L); UNUSED(dummy);
+  return NULL;
+}
+
+static void LJ_FASTCALL recff_xpcall(jit_State *J, RecordFFData *rd)
+{
+  if (J->maxslot >= 2) {
+    TValue argv0, argv1;
+    TRef tmp;
+    int errcode;
+    /* Swap function and traceback. */
+    tmp = J->base[0]; J->base[0] = J->base[1]; J->base[1] = tmp;
+    copyTV(J->L, &argv0, &rd->argv[0]);
+    copyTV(J->L, &argv1, &rd->argv[1]);
+    copyTV(J->L, &rd->argv[0], &argv1);
+    copyTV(J->L, &rd->argv[1], &argv0);
+    /* Need to protect lj_record_call because it may throw. */
+    errcode = lj_vm_cpcall(J->L, NULL, J, recff_xpcall_cp);
+    /* Always undo Lua stack swap to avoid confusing the interpreter. */
+    copyTV(J->L, &rd->argv[0], &argv0);
+    copyTV(J->L, &rd->argv[1], &argv1);
+    if (errcode)
+      lj_err_throw(J->L, errcode);  /* Propagate errors. */
+    rd->nres = -1;  /* Pending call. */
+  }  /* else: Interpreter will throw. */
+}
+
+/* -- Math library fast functions ----------------------------------------- */
+
+static void LJ_FASTCALL recff_math_abs(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  J->base[0] = emitir(IRTN(IR_ABS), tr, lj_ir_knum_abs(J));
+  UNUSED(rd);
+}
+
+/* Record rounding functions math.floor and math.ceil. */
+static void LJ_FASTCALL recff_math_round(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (!tref_isinteger(tr)) {  /* Pass through integers unmodified. */
+    tr = emitir(IRTN(IR_FPMATH), lj_ir_tonum(J, tr), rd->data);
+    /* Result is integral (or NaN/Inf), but may not fit an int32_t. */
+    if (LJ_DUALNUM) {  /* Try to narrow using a guarded conversion to int. */
+      lua_Number n = lj_vm_foldfpm(numberVnum(&rd->argv[0]), rd->data);
+      if (n == (lua_Number)lj_num2int(n))
+	tr = emitir(IRTGI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_CHECK);
+    }
+    J->base[0] = tr;
+  }
+}
+
+/* Record unary math.* functions, mapped to IR_FPMATH opcode. */
+static void LJ_FASTCALL recff_math_unary(jit_State *J, RecordFFData *rd)
+{
+  J->base[0] = emitir(IRTN(IR_FPMATH), lj_ir_tonum(J, J->base[0]), rd->data);
+}
+
+/* Record math.log. */
+static void LJ_FASTCALL recff_math_log(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  if (J->base[1]) {
+#ifdef LUAJIT_NO_LOG2
+    uint32_t fpm = IRFPM_LOG;
+#else
+    uint32_t fpm = IRFPM_LOG2;
+#endif
+    TRef trb = lj_ir_tonum(J, J->base[1]);
+    tr = emitir(IRTN(IR_FPMATH), tr, fpm);
+    trb = emitir(IRTN(IR_FPMATH), trb, fpm);
+    trb = emitir(IRTN(IR_DIV), lj_ir_knum_one(J), trb);
+    tr = emitir(IRTN(IR_MUL), tr, trb);
+  } else {
+    tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_LOG);
+  }
+  J->base[0] = tr;
+  UNUSED(rd);
+}
+
+/* Record math.atan2. */
+static void LJ_FASTCALL recff_math_atan2(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  TRef tr2 = lj_ir_tonum(J, J->base[1]);
+  J->base[0] = emitir(IRTN(IR_ATAN2), tr, tr2);
+  UNUSED(rd);
+}
+
+/* Record math.ldexp. */
+static void LJ_FASTCALL recff_math_ldexp(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+#if LJ_TARGET_X86ORX64
+  TRef tr2 = lj_ir_tonum(J, J->base[1]);
+#else
+  TRef tr2 = lj_opt_narrow_toint(J, J->base[1]);
+#endif
+  J->base[0] = emitir(IRTN(IR_LDEXP), tr, tr2);
+  UNUSED(rd);
+}
+
+/* Record math.asin, math.acos, math.atan. */
+static void LJ_FASTCALL recff_math_atrig(jit_State *J, RecordFFData *rd)
+{
+  TRef y = lj_ir_tonum(J, J->base[0]);
+  TRef x = lj_ir_knum_one(J);
+  uint32_t ffid = rd->data;
+  if (ffid != FF_math_atan) {
+    TRef tmp = emitir(IRTN(IR_MUL), y, y);
+    tmp = emitir(IRTN(IR_SUB), x, tmp);
+    tmp = emitir(IRTN(IR_FPMATH), tmp, IRFPM_SQRT);
+    if (ffid == FF_math_asin) { x = tmp; } else { x = y; y = tmp; }
+  }
+  J->base[0] = emitir(IRTN(IR_ATAN2), y, x);
+}
+
+static void LJ_FASTCALL recff_math_htrig(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  J->base[0] = emitir(IRTN(IR_CALLN), tr, rd->data);
+}
+
+static void LJ_FASTCALL recff_math_modf(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tref_isinteger(tr)) {
+    J->base[0] = tr;
+    J->base[1] = lj_ir_kint(J, 0);
+  } else {
+    TRef trt;
+    tr = lj_ir_tonum(J, tr);
+    trt = emitir(IRTN(IR_FPMATH), tr, IRFPM_TRUNC);
+    J->base[0] = trt;
+    J->base[1] = emitir(IRTN(IR_SUB), tr, trt);
+  }
+  rd->nres = 2;
+}
+
+static void LJ_FASTCALL recff_math_degrad(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  TRef trm = lj_ir_knum(J, numV(&J->fn->c.upvalue[0]));
+  J->base[0] = emitir(IRTN(IR_MUL), tr, trm);
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_math_pow(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  if (!tref_isnumber_str(J->base[1]))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  J->base[0] = lj_opt_narrow_pow(J, tr, J->base[1], &rd->argv[1]);
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_math_minmax(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonumber(J, J->base[0]);
+  uint32_t op = rd->data;
+  BCReg i;
+  for (i = 1; J->base[i] != 0; i++) {
+    TRef tr2 = lj_ir_tonumber(J, J->base[i]);
+    IRType t = IRT_INT;
+    if (!(tref_isinteger(tr) && tref_isinteger(tr2))) {
+      if (tref_isinteger(tr)) tr = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+      if (tref_isinteger(tr2)) tr2 = emitir(IRTN(IR_CONV), tr2, IRCONV_NUM_INT);
+      t = IRT_NUM;
+    }
+    tr = emitir(IRT(op, t), tr, tr2);
+  }
+  J->base[0] = tr;
+}
+
+static void LJ_FASTCALL recff_math_random(jit_State *J, RecordFFData *rd)
+{
+  GCudata *ud = udataV(&J->fn->c.upvalue[0]);
+  TRef tr, one;
+  lj_ir_kgc(J, obj2gco(ud), IRT_UDATA);  /* Prevent collection. */
+  tr = lj_ir_call(J, IRCALL_lj_math_random_step, lj_ir_kptr(J, uddata(ud)));
+  one = lj_ir_knum_one(J);
+  tr = emitir(IRTN(IR_SUB), tr, one);
+  if (J->base[0]) {
+    TRef tr1 = lj_ir_tonum(J, J->base[0]);
+    if (J->base[1]) {  /* d = floor(d*(r2-r1+1.0)) + r1 */
+      TRef tr2 = lj_ir_tonum(J, J->base[1]);
+      tr2 = emitir(IRTN(IR_SUB), tr2, tr1);
+      tr2 = emitir(IRTN(IR_ADD), tr2, one);
+      tr = emitir(IRTN(IR_MUL), tr, tr2);
+      tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_FLOOR);
+      tr = emitir(IRTN(IR_ADD), tr, tr1);
+    } else {  /* d = floor(d*r1) + 1.0 */
+      tr = emitir(IRTN(IR_MUL), tr, tr1);
+      tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_FLOOR);
+      tr = emitir(IRTN(IR_ADD), tr, one);
+    }
+  }
+  J->base[0] = tr;
+  UNUSED(rd);
+}
+
+/* -- Bit library fast functions ------------------------------------------ */
+
+/* Record unary bit.tobit, bit.bnot, bit.bswap. */
+static void LJ_FASTCALL recff_bit_unary(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
+  J->base[0] = (rd->data == IR_TOBIT) ? tr : emitir(IRTI(rd->data), tr, 0);
+}
+
+/* Record N-ary bit.band, bit.bor, bit.bxor. */
+static void LJ_FASTCALL recff_bit_nary(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
+  uint32_t op = rd->data;
+  BCReg i;
+  for (i = 1; J->base[i] != 0; i++)
+    tr = emitir(IRTI(op), tr, lj_opt_narrow_tobit(J, J->base[i]));
+  J->base[0] = tr;
+}
+
+/* Record bit shifts. */
+static void LJ_FASTCALL recff_bit_shift(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
+  TRef tsh = lj_opt_narrow_tobit(J, J->base[1]);
+  IROp op = (IROp)rd->data;
+  if (!(op < IR_BROL ? LJ_TARGET_MASKSHIFT : LJ_TARGET_MASKROT) &&
+      !tref_isk(tsh))
+    tsh = emitir(IRTI(IR_BAND), tsh, lj_ir_kint(J, 31));
+#ifdef LJ_TARGET_UNIFYROT
+  if (op == (LJ_TARGET_UNIFYROT == 1 ? IR_BROR : IR_BROL)) {
+    op = LJ_TARGET_UNIFYROT == 1 ? IR_BROL : IR_BROR;
+    tsh = emitir(IRTI(IR_NEG), tsh, tsh);
+  }
+#endif
+  J->base[0] = emitir(IRTI(op), tr, tsh);
+}
+
+/* -- String library fast functions --------------------------------------- */
+
+static void LJ_FASTCALL recff_string_len(jit_State *J, RecordFFData *rd)
+{
+  J->base[0] = emitir(IRTI(IR_FLOAD), lj_ir_tostr(J, J->base[0]), IRFL_STR_LEN);
+  UNUSED(rd);
+}
+
+/* Handle string.byte (rd->data = 0) and string.sub (rd->data = 1). */
+static void LJ_FASTCALL recff_string_range(jit_State *J, RecordFFData *rd)
+{
+  TRef trstr = lj_ir_tostr(J, J->base[0]);
+  TRef trlen = emitir(IRTI(IR_FLOAD), trstr, IRFL_STR_LEN);
+  TRef tr0 = lj_ir_kint(J, 0);
+  TRef trstart, trend;
+  GCstr *str = argv2str(J, &rd->argv[0]);
+  int32_t start, end;
+  if (rd->data) {  /* string.sub(str, start [,end]) */
+    start = argv2int(J, &rd->argv[1]);
+    trstart = lj_opt_narrow_toint(J, J->base[1]);
+    trend = J->base[2];
+    if (tref_isnil(trend)) {
+      trend = lj_ir_kint(J, -1);
+      end = -1;
+    } else {
+      trend = lj_opt_narrow_toint(J, trend);
+      end = argv2int(J, &rd->argv[2]);
+    }
+  } else {  /* string.byte(str, [,start [,end]]) */
+    if (tref_isnil(J->base[1])) {
+      start = 1;
+      trstart = lj_ir_kint(J, 1);
+    } else {
+      start = argv2int(J, &rd->argv[1]);
+      trstart = lj_opt_narrow_toint(J, J->base[1]);
+    }
+    if (J->base[1] && !tref_isnil(J->base[2])) {
+      trend = lj_opt_narrow_toint(J, J->base[2]);
+      end = argv2int(J, &rd->argv[2]);
+    } else {
+      trend = trstart;
+      end = start;
+    }
+  }
+  if (end < 0) {
+    emitir(IRTGI(IR_LT), trend, tr0);
+    trend = emitir(IRTI(IR_ADD), emitir(IRTI(IR_ADD), trlen, trend),
+		   lj_ir_kint(J, 1));
+    end = end+(int32_t)str->len+1;
+  } else if ((MSize)end <= str->len) {
+    emitir(IRTGI(IR_ULE), trend, trlen);
+  } else {
+    emitir(IRTGI(IR_GT), trend, trlen);
+    end = (int32_t)str->len;
+    trend = trlen;
+  }
+  if (start < 0) {
+    emitir(IRTGI(IR_LT), trstart, tr0);
+    trstart = emitir(IRTI(IR_ADD), trlen, trstart);
+    start = start+(int32_t)str->len;
+    emitir(start < 0 ? IRTGI(IR_LT) : IRTGI(IR_GE), trstart, tr0);
+    if (start < 0) {
+      trstart = tr0;
+      start = 0;
+    }
+  } else {
+    if (start == 0) {
+      emitir(IRTGI(IR_EQ), trstart, tr0);
+      trstart = tr0;
+    } else {
+      trstart = emitir(IRTI(IR_ADD), trstart, lj_ir_kint(J, -1));
+      emitir(IRTGI(IR_GE), trstart, tr0);
+      start--;
+    }
+  }
+  if (rd->data) {  /* Return string.sub result. */
+    if (end - start >= 0) {
+      /* Also handle empty range here, to avoid extra traces. */
+      TRef trptr, trslen = emitir(IRTI(IR_SUB), trend, trstart);
+      emitir(IRTGI(IR_GE), trslen, tr0);
+      trptr = emitir(IRT(IR_STRREF, IRT_P32), trstr, trstart);
+      J->base[0] = emitir(IRT(IR_SNEW, IRT_STR), trptr, trslen);
+    } else {  /* Range underflow: return empty string. */
+      emitir(IRTGI(IR_LT), trend, trstart);
+      J->base[0] = lj_ir_kstr(J, lj_str_new(J->L, strdata(str), 0));
+    }
+  } else {  /* Return string.byte result(s). */
+    ptrdiff_t i, len = end - start;
+    if (len > 0) {
+      TRef trslen = emitir(IRTI(IR_SUB), trend, trstart);
+      emitir(IRTGI(IR_EQ), trslen, lj_ir_kint(J, (int32_t)len));
+      if (J->baseslot + len > LJ_MAX_JSLOTS)
+	lj_trace_err_info(J, LJ_TRERR_STACKOV);
+      rd->nres = len;
+      for (i = 0; i < len; i++) {
+	TRef tmp = emitir(IRTI(IR_ADD), trstart, lj_ir_kint(J, (int32_t)i));
+	tmp = emitir(IRT(IR_STRREF, IRT_P32), trstr, tmp);
+	J->base[i] = emitir(IRT(IR_XLOAD, IRT_U8), tmp, IRXLOAD_READONLY);
+      }
+    } else {  /* Empty range or range underflow: return no results. */
+      emitir(IRTGI(IR_LE), trend, trstart);
+      rd->nres = 0;
+    }
+  }
+}
+
+/* -- Table library fast functions ---------------------------------------- */
+
+static void LJ_FASTCALL recff_table_getn(jit_State *J, RecordFFData *rd)
+{
+  if (tref_istab(J->base[0]))
+    J->base[0] = lj_ir_call(J, IRCALL_lj_tab_len, J->base[0]);
+  /* else: Interpreter will throw. */
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_table_remove(jit_State *J, RecordFFData *rd)
+{
+  TRef tab = J->base[0];
+  rd->nres = 0;
+  if (tref_istab(tab)) {
+    if (tref_isnil(J->base[1])) {  /* Simple pop: t[#t] = nil */
+      TRef trlen = lj_ir_call(J, IRCALL_lj_tab_len, tab);
+      GCtab *t = tabV(&rd->argv[0]);
+      MSize len = lj_tab_len(t);
+      emitir(IRTGI(len ? IR_NE : IR_EQ), trlen, lj_ir_kint(J, 0));
+      if (len) {
+	RecordIndex ix;
+	ix.tab = tab;
+	ix.key = trlen;
+	settabV(J->L, &ix.tabv, t);
+	setintV(&ix.keyv, len);
+	ix.idxchain = 0;
+	if (results_wanted(J) != 0) {  /* Specialize load only if needed. */
+	  ix.val = 0;
+	  J->base[0] = lj_record_idx(J, &ix);  /* Load previous value. */
+	  rd->nres = 1;
+	  /* Assumes ix.key/ix.tab is not modified for raw lj_record_idx(). */
+	}
+	ix.val = TREF_NIL;
+	lj_record_idx(J, &ix);  /* Remove value. */
+      }
+    } else {  /* Complex case: remove in the middle. */
+      recff_nyiu(J);
+    }
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_table_insert(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0];
+  ix.val = J->base[1];
+  rd->nres = 0;
+  if (tref_istab(ix.tab) && ix.val) {
+    if (!J->base[2]) {  /* Simple push: t[#t+1] = v */
+      TRef trlen = lj_ir_call(J, IRCALL_lj_tab_len, ix.tab);
+      GCtab *t = tabV(&rd->argv[0]);
+      ix.key = emitir(IRTI(IR_ADD), trlen, lj_ir_kint(J, 1));
+      settabV(J->L, &ix.tabv, t);
+      setintV(&ix.keyv, lj_tab_len(t) + 1);
+      ix.idxchain = 0;
+      lj_record_idx(J, &ix);  /* Set new value. */
+    } else {  /* Complex case: insert in the middle. */
+      recff_nyiu(J);
+    }
+  }  /* else: Interpreter will throw. */
+}
+
+/* -- I/O library fast functions ------------------------------------------ */
+
+/* Get FILE* for I/O function. Any I/O error aborts recording, so there's
+** no need to encode the alternate cases for any of the guards.
+*/
+static TRef recff_io_fp(jit_State *J, TRef *udp, int32_t id)
+{
+  TRef tr, ud, fp;
+  if (id) {  /* io.func() */
+    tr = lj_ir_kptr(J, &J2G(J)->gcroot[id]);
+    ud = emitir(IRT(IR_XLOAD, IRT_UDATA), tr, 0);
+  } else {  /* fp:method() */
+    ud = J->base[0];
+    if (!tref_isudata(ud))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    tr = emitir(IRT(IR_FLOAD, IRT_U8), ud, IRFL_UDATA_UDTYPE);
+    emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, UDTYPE_IO_FILE));
+  }
+  *udp = ud;
+  fp = emitir(IRT(IR_FLOAD, IRT_PTR), ud, IRFL_UDATA_FILE);
+  emitir(IRTG(IR_NE, IRT_PTR), fp, lj_ir_knull(J, IRT_PTR));
+  return fp;
+}
+
+static void LJ_FASTCALL recff_io_write(jit_State *J, RecordFFData *rd)
+{
+  TRef ud, fp = recff_io_fp(J, &ud, rd->data);
+  TRef zero = lj_ir_kint(J, 0);
+  TRef one = lj_ir_kint(J, 1);
+  ptrdiff_t i = rd->data == 0 ? 1 : 0;
+  for (; J->base[i]; i++) {
+    TRef str = lj_ir_tostr(J, J->base[i]);
+    TRef buf = emitir(IRT(IR_STRREF, IRT_P32), str, zero);
+    TRef len = emitir(IRTI(IR_FLOAD), str, IRFL_STR_LEN);
+    if (tref_isk(len) && IR(tref_ref(len))->i == 1) {
+      TRef tr = emitir(IRT(IR_XLOAD, IRT_U8), buf, IRXLOAD_READONLY);
+      tr = lj_ir_call(J, IRCALL_fputc, tr, fp);
+      if (results_wanted(J) != 0)  /* Check result only if not ignored. */
+	emitir(IRTGI(IR_NE), tr, lj_ir_kint(J, -1));
+    } else {
+      TRef tr = lj_ir_call(J, IRCALL_fwrite, buf, one, len, fp);
+      if (results_wanted(J) != 0)  /* Check result only if not ignored. */
+	emitir(IRTGI(IR_EQ), tr, len);
+    }
+  }
+  J->base[0] = LJ_52 ? ud : TREF_TRUE;
+}
+
+static void LJ_FASTCALL recff_io_flush(jit_State *J, RecordFFData *rd)
+{
+  TRef ud, fp = recff_io_fp(J, &ud, rd->data);
+  TRef tr = lj_ir_call(J, IRCALL_fflush, fp);
+  if (results_wanted(J) != 0)  /* Check result only if not ignored. */
+    emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, 0));
+  J->base[0] = TREF_TRUE;
+}
+
+/* -- Record calls to fast functions -------------------------------------- */
+
+#include "lj_recdef.h"
+
+static uint32_t recdef_lookup(GCfunc *fn)
+{
+  if (fn->c.ffid < sizeof(recff_idmap)/sizeof(recff_idmap[0]))
+    return recff_idmap[fn->c.ffid];
+  else
+    return 0;
+}
+
+/* Record entry to a fast function or C function. */
+void lj_ffrecord_func(jit_State *J)
+{
+  RecordFFData rd;
+  uint32_t m = recdef_lookup(J->fn);
+  rd.data = m & 0xff;
+  rd.nres = 1;  /* Default is one result. */
+  rd.argv = J->L->base;
+  J->base[J->maxslot] = 0;  /* Mark end of arguments. */
+  (recff_func[m >> 8])(J, &rd);  /* Call recff_* handler. */
+  if (rd.nres >= 0) {
+    if (J->postproc == LJ_POST_NONE) J->postproc = LJ_POST_FFRETRY;
+    lj_record_ret(J, 0, rd.nres);
+  }
+}
+
+#undef IR
+#undef emitir
+
+#endif
diff --git a/lib/luajit/src/lj_ffrecord.h b/lib/luajit/src/lj_ffrecord.h
new file mode 100644
index 00000000..b3bc6627
--- /dev/null
+++ b/lib/luajit/src/lj_ffrecord.h
@@ -0,0 +1,24 @@
+/*
+** Fast function call recorder.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FFRECORD_H
+#define _LJ_FFRECORD_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+/* Data used by handlers to record a fast function. */
+typedef struct RecordFFData {
+  TValue *argv;		/* Runtime argument values. */
+  ptrdiff_t nres;	/* Number of returned results (defaults to 1). */
+  uint32_t data;	/* Per-ffid auxiliary data (opcode, literal etc.). */
+} RecordFFData;
+
+LJ_FUNC int32_t lj_ffrecord_select_mode(jit_State *J, TRef tr, TValue *tv);
+LJ_FUNC void lj_ffrecord_func(jit_State *J);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_frame.h b/lib/luajit/src/lj_frame.h
new file mode 100644
index 00000000..fb533b0e
--- /dev/null
+++ b/lib/luajit/src/lj_frame.h
@@ -0,0 +1,183 @@
+/*
+** Stack frames.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FRAME_H
+#define _LJ_FRAME_H
+
+#include "lj_obj.h"
+#include "lj_bc.h"
+
+/* -- Lua stack frame ----------------------------------------------------- */
+
+/* Frame type markers in callee function slot (callee base-1). */
+enum {
+  FRAME_LUA, FRAME_C, FRAME_CONT, FRAME_VARG,
+  FRAME_LUAP, FRAME_CP, FRAME_PCALL, FRAME_PCALLH
+};
+#define FRAME_TYPE		3
+#define FRAME_P			4
+#define FRAME_TYPEP		(FRAME_TYPE|FRAME_P)
+
+/* Macros to access and modify Lua frames. */
+#define frame_gc(f)		(gcref((f)->fr.func))
+#define frame_func(f)		(&frame_gc(f)->fn)
+#define frame_ftsz(f)		((f)->fr.tp.ftsz)
+
+#define frame_type(f)		(frame_ftsz(f) & FRAME_TYPE)
+#define frame_typep(f)		(frame_ftsz(f) & FRAME_TYPEP)
+#define frame_islua(f)		(frame_type(f) == FRAME_LUA)
+#define frame_isc(f)		(frame_type(f) == FRAME_C)
+#define frame_iscont(f)		(frame_typep(f) == FRAME_CONT)
+#define frame_isvarg(f)		(frame_typep(f) == FRAME_VARG)
+#define frame_ispcall(f)	((frame_ftsz(f) & 6) == FRAME_PCALL)
+
+#define frame_pc(f)		(mref((f)->fr.tp.pcr, const BCIns))
+#define frame_contpc(f)		(frame_pc((f)-1))
+#if LJ_64
+#define frame_contf(f) \
+  ((ASMFunction)(void *)((intptr_t)lj_vm_asm_begin + \
+			 (intptr_t)(int32_t)((f)-1)->u32.lo))
+#else
+#define frame_contf(f)		((ASMFunction)gcrefp(((f)-1)->gcr, void))
+#endif
+#define frame_delta(f)		(frame_ftsz(f) >> 3)
+#define frame_sized(f)		(frame_ftsz(f) & ~FRAME_TYPEP)
+
+#define frame_prevl(f)		((f) - (1+bc_a(frame_pc(f)[-1])))
+#define frame_prevd(f)		((TValue *)((char *)(f) - frame_sized(f)))
+#define frame_prev(f)		(frame_islua(f)?frame_prevl(f):frame_prevd(f))
+/* Note: this macro does not skip over FRAME_VARG. */
+
+#define setframe_pc(f, pc)	(setmref((f)->fr.tp.pcr, (pc)))
+#define setframe_ftsz(f, sz)	((f)->fr.tp.ftsz = (sz))
+#define setframe_gc(f, p)	(setgcref((f)->fr.func, (p)))
+
+/* -- C stack frame ------------------------------------------------------- */
+
+/* Macros to access and modify the C stack frame chain. */
+
+/* These definitions must match with the arch-specific *.dasc files. */
+#if LJ_TARGET_X86
+#define CFRAME_OFS_ERRF		(15*4)
+#define CFRAME_OFS_NRES		(14*4)
+#define CFRAME_OFS_PREV		(13*4)
+#define CFRAME_OFS_L		(12*4)
+#define CFRAME_OFS_PC		(6*4)
+#define CFRAME_OFS_MULTRES	(5*4)
+#define CFRAME_SIZE		(12*4)
+#define CFRAME_SHIFT_MULTRES	0
+#elif LJ_TARGET_X64
+#if LJ_ABI_WIN
+#define CFRAME_OFS_PREV		(13*8)
+#define CFRAME_OFS_PC		(25*4)
+#define CFRAME_OFS_L		(24*4)
+#define CFRAME_OFS_ERRF		(23*4)
+#define CFRAME_OFS_NRES		(22*4)
+#define CFRAME_OFS_MULTRES	(21*4)
+#define CFRAME_SIZE		(10*8)
+#define CFRAME_SIZE_JIT		(CFRAME_SIZE + 9*16 + 4*8)
+#define CFRAME_SHIFT_MULTRES	0
+#else
+#define CFRAME_OFS_PREV		(4*8)
+#define CFRAME_OFS_PC		(7*4)
+#define CFRAME_OFS_L		(6*4)
+#define CFRAME_OFS_ERRF		(5*4)
+#define CFRAME_OFS_NRES		(4*4)
+#define CFRAME_OFS_MULTRES	(1*4)
+#define CFRAME_SIZE		(10*8)
+#define CFRAME_SIZE_JIT		(CFRAME_SIZE + 16)
+#define CFRAME_SHIFT_MULTRES	0
+#endif
+#elif LJ_TARGET_ARM
+#define CFRAME_OFS_ERRF		24
+#define CFRAME_OFS_NRES		20
+#define CFRAME_OFS_PREV		16
+#define CFRAME_OFS_L		12
+#define CFRAME_OFS_PC		8
+#define CFRAME_OFS_MULTRES	4
+#if LJ_ARCH_HASFPU
+#define CFRAME_SIZE		128
+#else
+#define CFRAME_SIZE		64
+#endif
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_TARGET_PPC
+#if LJ_TARGET_XBOX360
+#define CFRAME_OFS_ERRF		424
+#define CFRAME_OFS_NRES		420
+#define CFRAME_OFS_PREV		400
+#define CFRAME_OFS_L		416
+#define CFRAME_OFS_PC		412
+#define CFRAME_OFS_MULTRES	408
+#define CFRAME_SIZE		384
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_ARCH_PPC64
+#define CFRAME_OFS_ERRF		472
+#define CFRAME_OFS_NRES		468
+#define CFRAME_OFS_PREV		448
+#define CFRAME_OFS_L		464
+#define CFRAME_OFS_PC		460
+#define CFRAME_OFS_MULTRES	456
+#define CFRAME_SIZE		400
+#define CFRAME_SHIFT_MULTRES	3
+#else
+#define CFRAME_OFS_ERRF		48
+#define CFRAME_OFS_NRES		44
+#define CFRAME_OFS_PREV		40
+#define CFRAME_OFS_L		36
+#define CFRAME_OFS_PC		32
+#define CFRAME_OFS_MULTRES	28
+#define CFRAME_SIZE		272
+#define CFRAME_SHIFT_MULTRES	3
+#endif
+#elif LJ_TARGET_PPCSPE
+#define CFRAME_OFS_ERRF		28
+#define CFRAME_OFS_NRES		24
+#define CFRAME_OFS_PREV		20
+#define CFRAME_OFS_L		16
+#define CFRAME_OFS_PC		12
+#define CFRAME_OFS_MULTRES	8
+#define CFRAME_SIZE		184
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_TARGET_MIPS
+#define CFRAME_OFS_ERRF		124
+#define CFRAME_OFS_NRES		120
+#define CFRAME_OFS_PREV		116
+#define CFRAME_OFS_L		112
+#define CFRAME_OFS_PC		20
+#define CFRAME_OFS_MULTRES	16
+#define CFRAME_SIZE		112
+#define CFRAME_SHIFT_MULTRES	3
+#else
+#error "Missing CFRAME_* definitions for this architecture"
+#endif
+
+#ifndef CFRAME_SIZE_JIT
+#define CFRAME_SIZE_JIT		CFRAME_SIZE
+#endif
+
+#define CFRAME_RESUME		1
+#define CFRAME_UNWIND_FF	2  /* Only used in unwinder. */
+#define CFRAME_RAWMASK		(~(intptr_t)(CFRAME_RESUME|CFRAME_UNWIND_FF))
+
+#define cframe_errfunc(cf)	(*(int32_t *)(((char *)(cf))+CFRAME_OFS_ERRF))
+#define cframe_nres(cf)		(*(int32_t *)(((char *)(cf))+CFRAME_OFS_NRES))
+#define cframe_prev(cf)		(*(void **)(((char *)(cf))+CFRAME_OFS_PREV))
+#define cframe_multres(cf)  (*(uint32_t *)(((char *)(cf))+CFRAME_OFS_MULTRES))
+#define cframe_multres_n(cf)	(cframe_multres((cf)) >> CFRAME_SHIFT_MULTRES)
+#define cframe_L(cf) \
+  (&gcref(*(GCRef *)(((char *)(cf))+CFRAME_OFS_L))->th)
+#define cframe_pc(cf) \
+  (mref(*(MRef *)(((char *)(cf))+CFRAME_OFS_PC), const BCIns))
+#define setcframe_L(cf, L) \
+  (setmref(*(MRef *)(((char *)(cf))+CFRAME_OFS_L), (L)))
+#define setcframe_pc(cf, pc) \
+  (setmref(*(MRef *)(((char *)(cf))+CFRAME_OFS_PC), (pc)))
+#define cframe_canyield(cf)	((intptr_t)(cf) & CFRAME_RESUME)
+#define cframe_unwind_ff(cf)	((intptr_t)(cf) & CFRAME_UNWIND_FF)
+#define cframe_raw(cf)		((void *)((intptr_t)(cf) & CFRAME_RAWMASK))
+#define cframe_Lpc(L)		cframe_pc(cframe_raw(L->cframe))
+
+#endif
diff --git a/lib/luajit/src/lj_func.c b/lib/luajit/src/lj_func.c
new file mode 100644
index 00000000..9a59b0f0
--- /dev/null
+++ b/lib/luajit/src/lj_func.c
@@ -0,0 +1,185 @@
+/*
+** Function handling (prototypes, functions and upvalues).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_func_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_func.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+
+/* -- Prototypes ---------------------------------------------------------- */
+
+void LJ_FASTCALL lj_func_freeproto(global_State *g, GCproto *pt)
+{
+  lj_mem_free(g, pt, pt->sizept);
+}
+
+/* -- Upvalues ------------------------------------------------------------ */
+
+static void unlinkuv(GCupval *uv)
+{
+  lua_assert(uvprev(uvnext(uv)) == uv && uvnext(uvprev(uv)) == uv);
+  setgcrefr(uvnext(uv)->prev, uv->prev);
+  setgcrefr(uvprev(uv)->next, uv->next);
+}
+
+/* Find existing open upvalue for a stack slot or create a new one. */
+static GCupval *func_finduv(lua_State *L, TValue *slot)
+{
+  global_State *g = G(L);
+  GCRef *pp = &L->openupval;
+  GCupval *p;
+  GCupval *uv;
+  /* Search the sorted list of open upvalues. */
+  while (gcref(*pp) != NULL && uvval((p = gco2uv(gcref(*pp)))) >= slot) {
+    lua_assert(!p->closed && uvval(p) != &p->tv);
+    if (uvval(p) == slot) {  /* Found open upvalue pointing to same slot? */
+      if (isdead(g, obj2gco(p)))  /* Resurrect it, if it's dead. */
+	flipwhite(obj2gco(p));
+      return p;
+    }
+    pp = &p->nextgc;
+  }
+  /* No matching upvalue found. Create a new one. */
+  uv = lj_mem_newt(L, sizeof(GCupval), GCupval);
+  newwhite(g, uv);
+  uv->gct = ~LJ_TUPVAL;
+  uv->closed = 0;  /* Still open. */
+  setmref(uv->v, slot);  /* Pointing to the stack slot. */
+  /* NOBARRIER: The GCupval is new (marked white) and open. */
+  setgcrefr(uv->nextgc, *pp);  /* Insert into sorted list of open upvalues. */
+  setgcref(*pp, obj2gco(uv));
+  setgcref(uv->prev, obj2gco(&g->uvhead));  /* Insert into GC list, too. */
+  setgcrefr(uv->next, g->uvhead.next);
+  setgcref(uvnext(uv)->prev, obj2gco(uv));
+  setgcref(g->uvhead.next, obj2gco(uv));
+  lua_assert(uvprev(uvnext(uv)) == uv && uvnext(uvprev(uv)) == uv);
+  return uv;
+}
+
+/* Create an empty and closed upvalue. */
+static GCupval *func_emptyuv(lua_State *L)
+{
+  GCupval *uv = (GCupval *)lj_mem_newgco(L, sizeof(GCupval));
+  uv->gct = ~LJ_TUPVAL;
+  uv->closed = 1;
+  setnilV(&uv->tv);
+  setmref(uv->v, &uv->tv);
+  return uv;
+}
+
+/* Close all open upvalues pointing to some stack level or above. */
+void LJ_FASTCALL lj_func_closeuv(lua_State *L, TValue *level)
+{
+  GCupval *uv;
+  global_State *g = G(L);
+  while (gcref(L->openupval) != NULL &&
+	 uvval((uv = gco2uv(gcref(L->openupval)))) >= level) {
+    GCobj *o = obj2gco(uv);
+    lua_assert(!isblack(o) && !uv->closed && uvval(uv) != &uv->tv);
+    setgcrefr(L->openupval, uv->nextgc);  /* No longer in open list. */
+    if (isdead(g, o)) {
+      lj_func_freeuv(g, uv);
+    } else {
+      unlinkuv(uv);
+      lj_gc_closeuv(g, uv);
+    }
+  }
+}
+
+void LJ_FASTCALL lj_func_freeuv(global_State *g, GCupval *uv)
+{
+  if (!uv->closed)
+    unlinkuv(uv);
+  lj_mem_freet(g, uv);
+}
+
+/* -- Functions (closures) ------------------------------------------------ */
+
+GCfunc *lj_func_newC(lua_State *L, MSize nelems, GCtab *env)
+{
+  GCfunc *fn = (GCfunc *)lj_mem_newgco(L, sizeCfunc(nelems));
+  fn->c.gct = ~LJ_TFUNC;
+  fn->c.ffid = FF_C;
+  fn->c.nupvalues = (uint8_t)nelems;
+  /* NOBARRIER: The GCfunc is new (marked white). */
+  setmref(fn->c.pc, &G(L)->bc_cfunc_ext);
+  setgcref(fn->c.env, obj2gco(env));
+  return fn;
+}
+
+static GCfunc *func_newL(lua_State *L, GCproto *pt, GCtab *env)
+{
+  uint32_t count;
+  GCfunc *fn = (GCfunc *)lj_mem_newgco(L, sizeLfunc((MSize)pt->sizeuv));
+  fn->l.gct = ~LJ_TFUNC;
+  fn->l.ffid = FF_LUA;
+  fn->l.nupvalues = 0;  /* Set to zero until upvalues are initialized. */
+  /* NOBARRIER: Really a setgcref. But the GCfunc is new (marked white). */
+  setmref(fn->l.pc, proto_bc(pt));
+  setgcref(fn->l.env, obj2gco(env));
+  /* Saturating 3 bit counter (0..7) for created closures. */
+  count = (uint32_t)pt->flags + PROTO_CLCOUNT;
+  pt->flags = (uint8_t)(count - ((count >> PROTO_CLC_BITS) & PROTO_CLCOUNT));
+  return fn;
+}
+
+/* Create a new Lua function with empty upvalues. */
+GCfunc *lj_func_newL_empty(lua_State *L, GCproto *pt, GCtab *env)
+{
+  GCfunc *fn = func_newL(L, pt, env);
+  MSize i, nuv = pt->sizeuv;
+  /* NOBARRIER: The GCfunc is new (marked white). */
+  for (i = 0; i < nuv; i++) {
+    GCupval *uv = func_emptyuv(L);
+    uv->dhash = (uint32_t)(uintptr_t)pt ^ ((uint32_t)proto_uv(pt)[i] << 24);
+    setgcref(fn->l.uvptr[i], obj2gco(uv));
+  }
+  fn->l.nupvalues = (uint8_t)nuv;
+  return fn;
+}
+
+/* Do a GC check and create a new Lua function with inherited upvalues. */
+GCfunc *lj_func_newL_gc(lua_State *L, GCproto *pt, GCfuncL *parent)
+{
+  GCfunc *fn;
+  GCRef *puv;
+  MSize i, nuv;
+  TValue *base;
+  lj_gc_check_fixtop(L);
+  fn = func_newL(L, pt, tabref(parent->env));
+  /* NOBARRIER: The GCfunc is new (marked white). */
+  puv = parent->uvptr;
+  nuv = pt->sizeuv;
+  base = L->base;
+  for (i = 0; i < nuv; i++) {
+    uint32_t v = proto_uv(pt)[i];
+    GCupval *uv;
+    if ((v & PROTO_UV_LOCAL)) {
+      uv = func_finduv(L, base + (v & 0xff));
+      uv->immutable = ((v / PROTO_UV_IMMUTABLE) & 1);
+      uv->dhash = (uint32_t)(uintptr_t)mref(parent->pc, char) ^ (v << 24);
+    } else {
+      uv = &gcref(puv[v])->uv;
+    }
+    setgcref(fn->l.uvptr[i], obj2gco(uv));
+  }
+  fn->l.nupvalues = (uint8_t)nuv;
+  return fn;
+}
+
+void LJ_FASTCALL lj_func_free(global_State *g, GCfunc *fn)
+{
+  MSize size = isluafunc(fn) ? sizeLfunc((MSize)fn->l.nupvalues) :
+			       sizeCfunc((MSize)fn->c.nupvalues);
+  lj_mem_free(g, fn, size);
+}
+
diff --git a/lib/luajit/src/lj_func.h b/lib/luajit/src/lj_func.h
new file mode 100644
index 00000000..88732e83
--- /dev/null
+++ b/lib/luajit/src/lj_func.h
@@ -0,0 +1,24 @@
+/*
+** Function handling (prototypes, functions and upvalues).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FUNC_H
+#define _LJ_FUNC_H
+
+#include "lj_obj.h"
+
+/* Prototypes. */
+LJ_FUNC void LJ_FASTCALL lj_func_freeproto(global_State *g, GCproto *pt);
+
+/* Upvalues. */
+LJ_FUNCA void LJ_FASTCALL lj_func_closeuv(lua_State *L, TValue *level);
+LJ_FUNC void LJ_FASTCALL lj_func_freeuv(global_State *g, GCupval *uv);
+
+/* Functions (closures). */
+LJ_FUNC GCfunc *lj_func_newC(lua_State *L, MSize nelems, GCtab *env);
+LJ_FUNC GCfunc *lj_func_newL_empty(lua_State *L, GCproto *pt, GCtab *env);
+LJ_FUNCA GCfunc *lj_func_newL_gc(lua_State *L, GCproto *pt, GCfuncL *parent);
+LJ_FUNC void LJ_FASTCALL lj_func_free(global_State *g, GCfunc *c);
+
+#endif
diff --git a/lib/luajit/src/lj_gc.c b/lib/luajit/src/lj_gc.c
new file mode 100644
index 00000000..c2bc397d
--- /dev/null
+++ b/lib/luajit/src/lj_gc.c
@@ -0,0 +1,849 @@
+/*
+** Garbage collector.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_gc_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_udata.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#endif
+#include "lj_trace.h"
+#include "lj_vm.h"
+
+#define GCSTEPSIZE	1024u
+#define GCSWEEPMAX	40
+#define GCSWEEPCOST	10
+#define GCFINALIZECOST	100
+
+/* Macros to set GCobj colors and flags. */
+#define white2gray(x)		((x)->gch.marked &= (uint8_t)~LJ_GC_WHITES)
+#define gray2black(x)		((x)->gch.marked |= LJ_GC_BLACK)
+#define isfinalized(u)		((u)->marked & LJ_GC_FINALIZED)
+
+/* -- Mark phase ---------------------------------------------------------- */
+
+/* Mark a TValue (if needed). */
+#define gc_marktv(g, tv) \
+  { lua_assert(!tvisgcv(tv) || (~itype(tv) == gcval(tv)->gch.gct)); \
+    if (tviswhite(tv)) gc_mark(g, gcV(tv)); }
+
+/* Mark a GCobj (if needed). */
+#define gc_markobj(g, o) \
+  { if (iswhite(obj2gco(o))) gc_mark(g, obj2gco(o)); }
+
+/* Mark a string object. */
+#define gc_mark_str(s)		((s)->marked &= (uint8_t)~LJ_GC_WHITES)
+
+/* Mark a white GCobj. */
+static void gc_mark(global_State *g, GCobj *o)
+{
+  int gct = o->gch.gct;
+  lua_assert(iswhite(o) && !isdead(g, o));
+  white2gray(o);
+  if (LJ_UNLIKELY(gct == ~LJ_TUDATA)) {
+    GCtab *mt = tabref(gco2ud(o)->metatable);
+    gray2black(o);  /* Userdata are never gray. */
+    if (mt) gc_markobj(g, mt);
+    gc_markobj(g, tabref(gco2ud(o)->env));
+  } else if (LJ_UNLIKELY(gct == ~LJ_TUPVAL)) {
+    GCupval *uv = gco2uv(o);
+    gc_marktv(g, uvval(uv));
+    if (uv->closed)
+      gray2black(o);  /* Closed upvalues are never gray. */
+  } else if (gct != ~LJ_TSTR && gct != ~LJ_TCDATA) {
+    lua_assert(gct == ~LJ_TFUNC || gct == ~LJ_TTAB ||
+	       gct == ~LJ_TTHREAD || gct == ~LJ_TPROTO);
+    setgcrefr(o->gch.gclist, g->gc.gray);
+    setgcref(g->gc.gray, o);
+  }
+}
+
+/* Mark GC roots. */
+static void gc_mark_gcroot(global_State *g)
+{
+  ptrdiff_t i;
+  for (i = 0; i < GCROOT_MAX; i++)
+    if (gcref(g->gcroot[i]) != NULL)
+      gc_markobj(g, gcref(g->gcroot[i]));
+}
+
+/* Start a GC cycle and mark the root set. */
+static void gc_mark_start(global_State *g)
+{
+  setgcrefnull(g->gc.gray);
+  setgcrefnull(g->gc.grayagain);
+  setgcrefnull(g->gc.weak);
+  gc_markobj(g, mainthread(g));
+  gc_markobj(g, tabref(mainthread(g)->env));
+  gc_marktv(g, &g->registrytv);
+  gc_mark_gcroot(g);
+  g->gc.state = GCSpropagate;
+}
+
+/* Mark open upvalues. */
+static void gc_mark_uv(global_State *g)
+{
+  GCupval *uv;
+  for (uv = uvnext(&g->uvhead); uv != &g->uvhead; uv = uvnext(uv)) {
+    lua_assert(uvprev(uvnext(uv)) == uv && uvnext(uvprev(uv)) == uv);
+    if (isgray(obj2gco(uv)))
+      gc_marktv(g, uvval(uv));
+  }
+}
+
+/* Mark userdata in mmudata list. */
+static void gc_mark_mmudata(global_State *g)
+{
+  GCobj *root = gcref(g->gc.mmudata);
+  GCobj *u = root;
+  if (u) {
+    do {
+      u = gcnext(u);
+      makewhite(g, u);  /* Could be from previous GC. */
+      gc_mark(g, u);
+    } while (u != root);
+  }
+}
+
+/* Separate userdata objects to be finalized to mmudata list. */
+size_t lj_gc_separateudata(global_State *g, int all)
+{
+  size_t m = 0;
+  GCRef *p = &mainthread(g)->nextgc;
+  GCobj *o;
+  while ((o = gcref(*p)) != NULL) {
+    if (!(iswhite(o) || all) || isfinalized(gco2ud(o))) {
+      p = &o->gch.nextgc;  /* Nothing to do. */
+    } else if (!lj_meta_fastg(g, tabref(gco2ud(o)->metatable), MM_gc)) {
+      markfinalized(o);  /* Done, as there's no __gc metamethod. */
+      p = &o->gch.nextgc;
+    } else {  /* Otherwise move userdata to be finalized to mmudata list. */
+      m += sizeudata(gco2ud(o));
+      markfinalized(o);
+      *p = o->gch.nextgc;
+      if (gcref(g->gc.mmudata)) {  /* Link to end of mmudata list. */
+	GCobj *root = gcref(g->gc.mmudata);
+	setgcrefr(o->gch.nextgc, root->gch.nextgc);
+	setgcref(root->gch.nextgc, o);
+	setgcref(g->gc.mmudata, o);
+      } else {  /* Create circular list. */
+	setgcref(o->gch.nextgc, o);
+	setgcref(g->gc.mmudata, o);
+      }
+    }
+  }
+  return m;
+}
+
+/* -- Propagation phase --------------------------------------------------- */
+
+/* Traverse a table. */
+static int gc_traverse_tab(global_State *g, GCtab *t)
+{
+  int weak = 0;
+  cTValue *mode;
+  GCtab *mt = tabref(t->metatable);
+  if (mt)
+    gc_markobj(g, mt);
+  mode = lj_meta_fastg(g, mt, MM_mode);
+  if (mode && tvisstr(mode)) {  /* Valid __mode field? */
+    const char *modestr = strVdata(mode);
+    int c;
+    while ((c = *modestr++)) {
+      if (c == 'k') weak |= LJ_GC_WEAKKEY;
+      else if (c == 'v') weak |= LJ_GC_WEAKVAL;
+      else if (c == 'K') weak = (int)(~0u & ~LJ_GC_WEAKVAL);
+    }
+    if (weak > 0) {  /* Weak tables are cleared in the atomic phase. */
+      t->marked = (uint8_t)((t->marked & ~LJ_GC_WEAK) | weak);
+      setgcrefr(t->gclist, g->gc.weak);
+      setgcref(g->gc.weak, obj2gco(t));
+    }
+  }
+  if (weak == LJ_GC_WEAK)  /* Nothing to mark if both keys/values are weak. */
+    return 1;
+  if (!(weak & LJ_GC_WEAKVAL)) {  /* Mark array part. */
+    MSize i, asize = t->asize;
+    for (i = 0; i < asize; i++)
+      gc_marktv(g, arrayslot(t, i));
+  }
+  if (t->hmask > 0) {  /* Mark hash part. */
+    Node *node = noderef(t->node);
+    MSize i, hmask = t->hmask;
+    for (i = 0; i <= hmask; i++) {
+      Node *n = &node[i];
+      if (!tvisnil(&n->val)) {  /* Mark non-empty slot. */
+	lua_assert(!tvisnil(&n->key));
+	if (!(weak & LJ_GC_WEAKKEY)) gc_marktv(g, &n->key);
+	if (!(weak & LJ_GC_WEAKVAL)) gc_marktv(g, &n->val);
+      }
+    }
+  }
+  return weak;
+}
+
+/* Traverse a function. */
+static void gc_traverse_func(global_State *g, GCfunc *fn)
+{
+  gc_markobj(g, tabref(fn->c.env));
+  if (isluafunc(fn)) {
+    uint32_t i;
+    lua_assert(fn->l.nupvalues <= funcproto(fn)->sizeuv);
+    gc_markobj(g, funcproto(fn));
+    for (i = 0; i < fn->l.nupvalues; i++)  /* Mark Lua function upvalues. */
+      gc_markobj(g, &gcref(fn->l.uvptr[i])->uv);
+  } else {
+    uint32_t i;
+    for (i = 0; i < fn->c.nupvalues; i++)  /* Mark C function upvalues. */
+      gc_marktv(g, &fn->c.upvalue[i]);
+  }
+}
+
+#if LJ_HASJIT
+/* Mark a trace. */
+static void gc_marktrace(global_State *g, TraceNo traceno)
+{
+  GCobj *o = obj2gco(traceref(G2J(g), traceno));
+  lua_assert(traceno != G2J(g)->cur.traceno);
+  if (iswhite(o)) {
+    white2gray(o);
+    setgcrefr(o->gch.gclist, g->gc.gray);
+    setgcref(g->gc.gray, o);
+  }
+}
+
+/* Traverse a trace. */
+static void gc_traverse_trace(global_State *g, GCtrace *T)
+{
+  IRRef ref;
+  if (T->traceno == 0) return;
+  for (ref = T->nk; ref < REF_TRUE; ref++) {
+    IRIns *ir = &T->ir[ref];
+    if (ir->o == IR_KGC)
+      gc_markobj(g, ir_kgc(ir));
+  }
+  if (T->link) gc_marktrace(g, T->link);
+  if (T->nextroot) gc_marktrace(g, T->nextroot);
+  if (T->nextside) gc_marktrace(g, T->nextside);
+  gc_markobj(g, gcref(T->startpt));
+}
+
+/* The current trace is a GC root while not anchored in the prototype (yet). */
+#define gc_traverse_curtrace(g)	gc_traverse_trace(g, &G2J(g)->cur)
+#else
+#define gc_traverse_curtrace(g)	UNUSED(g)
+#endif
+
+/* Traverse a prototype. */
+static void gc_traverse_proto(global_State *g, GCproto *pt)
+{
+  ptrdiff_t i;
+  gc_mark_str(proto_chunkname(pt));
+  for (i = -(ptrdiff_t)pt->sizekgc; i < 0; i++)  /* Mark collectable consts. */
+    gc_markobj(g, proto_kgc(pt, i));
+#if LJ_HASJIT
+  if (pt->trace) gc_marktrace(g, pt->trace);
+#endif
+}
+
+/* Traverse the frame structure of a stack. */
+static MSize gc_traverse_frames(global_State *g, lua_State *th)
+{
+  TValue *frame, *top = th->top-1, *bot = tvref(th->stack);
+  /* Note: extra vararg frame not skipped, marks function twice (harmless). */
+  for (frame = th->base-1; frame > bot; frame = frame_prev(frame)) {
+    GCfunc *fn = frame_func(frame);
+    TValue *ftop = frame;
+    if (isluafunc(fn)) ftop += funcproto(fn)->framesize;
+    if (ftop > top) top = ftop;
+    gc_markobj(g, fn);  /* Need to mark hidden function (or L). */
+  }
+  top++;  /* Correct bias of -1 (frame == base-1). */
+  if (top > tvref(th->maxstack)) top = tvref(th->maxstack);
+  return (MSize)(top - bot);  /* Return minimum needed stack size. */
+}
+
+/* Traverse a thread object. */
+static void gc_traverse_thread(global_State *g, lua_State *th)
+{
+  TValue *o, *top = th->top;
+  for (o = tvref(th->stack)+1; o < top; o++)
+    gc_marktv(g, o);
+  if (g->gc.state == GCSatomic) {
+    top = tvref(th->stack) + th->stacksize;
+    for (; o < top; o++)  /* Clear unmarked slots. */
+      setnilV(o);
+  }
+  gc_markobj(g, tabref(th->env));
+  lj_state_shrinkstack(th, gc_traverse_frames(g, th));
+}
+
+/* Propagate one gray object. Traverse it and turn it black. */
+static size_t propagatemark(global_State *g)
+{
+  GCobj *o = gcref(g->gc.gray);
+  int gct = o->gch.gct;
+  lua_assert(isgray(o));
+  gray2black(o);
+  setgcrefr(g->gc.gray, o->gch.gclist);  /* Remove from gray list. */
+  if (LJ_LIKELY(gct == ~LJ_TTAB)) {
+    GCtab *t = gco2tab(o);
+    if (gc_traverse_tab(g, t) > 0)
+      black2gray(o);  /* Keep weak tables gray. */
+    return sizeof(GCtab) + sizeof(TValue) * t->asize +
+			   sizeof(Node) * (t->hmask + 1);
+  } else if (LJ_LIKELY(gct == ~LJ_TFUNC)) {
+    GCfunc *fn = gco2func(o);
+    gc_traverse_func(g, fn);
+    return isluafunc(fn) ? sizeLfunc((MSize)fn->l.nupvalues) :
+			   sizeCfunc((MSize)fn->c.nupvalues);
+  } else if (LJ_LIKELY(gct == ~LJ_TPROTO)) {
+    GCproto *pt = gco2pt(o);
+    gc_traverse_proto(g, pt);
+    return pt->sizept;
+  } else if (LJ_LIKELY(gct == ~LJ_TTHREAD)) {
+    lua_State *th = gco2th(o);
+    setgcrefr(th->gclist, g->gc.grayagain);
+    setgcref(g->gc.grayagain, o);
+    black2gray(o);  /* Threads are never black. */
+    gc_traverse_thread(g, th);
+    return sizeof(lua_State) + sizeof(TValue) * th->stacksize;
+  } else {
+#if LJ_HASJIT
+    GCtrace *T = gco2trace(o);
+    gc_traverse_trace(g, T);
+    return ((sizeof(GCtrace)+7)&~7) + (T->nins-T->nk)*sizeof(IRIns) +
+	   T->nsnap*sizeof(SnapShot) + T->nsnapmap*sizeof(SnapEntry);
+#else
+    lua_assert(0);
+    return 0;
+#endif
+  }
+}
+
+/* Propagate all gray objects. */
+static size_t gc_propagate_gray(global_State *g)
+{
+  size_t m = 0;
+  while (gcref(g->gc.gray) != NULL)
+    m += propagatemark(g);
+  return m;
+}
+
+/* -- Sweep phase --------------------------------------------------------- */
+
+/* Try to shrink some common data structures. */
+static void gc_shrink(global_State *g, lua_State *L)
+{
+  if (g->strnum <= (g->strmask >> 2) && g->strmask > LJ_MIN_STRTAB*2-1)
+    lj_str_resize(L, g->strmask >> 1);  /* Shrink string table. */
+  if (g->tmpbuf.sz > LJ_MIN_SBUF*2)
+    lj_str_resizebuf(L, &g->tmpbuf, g->tmpbuf.sz >> 1);  /* Shrink temp buf. */
+}
+
+/* Type of GC free functions. */
+typedef void (LJ_FASTCALL *GCFreeFunc)(global_State *g, GCobj *o);
+
+/* GC free functions for LJ_TSTR .. LJ_TUDATA. ORDER LJ_T */
+static const GCFreeFunc gc_freefunc[] = {
+  (GCFreeFunc)lj_str_free,
+  (GCFreeFunc)lj_func_freeuv,
+  (GCFreeFunc)lj_state_free,
+  (GCFreeFunc)lj_func_freeproto,
+  (GCFreeFunc)lj_func_free,
+#if LJ_HASJIT
+  (GCFreeFunc)lj_trace_free,
+#else
+  (GCFreeFunc)0,
+#endif
+#if LJ_HASFFI
+  (GCFreeFunc)lj_cdata_free,
+#else
+  (GCFreeFunc)0,
+#endif
+  (GCFreeFunc)lj_tab_free,
+  (GCFreeFunc)lj_udata_free
+};
+
+/* Full sweep of a GC list. */
+#define gc_fullsweep(g, p)	gc_sweep(g, (p), LJ_MAX_MEM)
+
+/* Partial sweep of a GC list. */
+static GCRef *gc_sweep(global_State *g, GCRef *p, uint32_t lim)
+{
+  /* Mask with other white and LJ_GC_FIXED. Or LJ_GC_SFIXED on shutdown. */
+  int ow = otherwhite(g);
+  GCobj *o;
+  while ((o = gcref(*p)) != NULL && lim-- > 0) {
+    if (o->gch.gct == ~LJ_TTHREAD)  /* Need to sweep open upvalues, too. */
+      gc_fullsweep(g, &gco2th(o)->openupval);
+    if (((o->gch.marked ^ LJ_GC_WHITES) & ow)) {  /* Black or current white? */
+      lua_assert(!isdead(g, o) || (o->gch.marked & LJ_GC_FIXED));
+      makewhite(g, o);  /* Value is alive, change to the current white. */
+      p = &o->gch.nextgc;
+    } else {  /* Otherwise value is dead, free it. */
+      lua_assert(isdead(g, o) || ow == LJ_GC_SFIXED);
+      setgcrefr(*p, o->gch.nextgc);
+      if (o == gcref(g->gc.root))
+	setgcrefr(g->gc.root, o->gch.nextgc);  /* Adjust list anchor. */
+      gc_freefunc[o->gch.gct - ~LJ_TSTR](g, o);
+    }
+  }
+  return p;
+}
+
+/* Check whether we can clear a key or a value slot from a table. */
+static int gc_mayclear(cTValue *o, int val)
+{
+  if (tvisgcv(o)) {  /* Only collectable objects can be weak references. */
+    if (tvisstr(o)) {  /* But strings cannot be used as weak references. */
+      gc_mark_str(strV(o));  /* And need to be marked. */
+      return 0;
+    }
+    if (iswhite(gcV(o)))
+      return 1;  /* Object is about to be collected. */
+    if (tvisudata(o) && val && isfinalized(udataV(o)))
+      return 1;  /* Finalized userdata is dropped only from values. */
+  }
+  return 0;  /* Cannot clear. */
+}
+
+/* Clear collected entries from weak tables. */
+static void gc_clearweak(GCobj *o)
+{
+  while (o) {
+    GCtab *t = gco2tab(o);
+    lua_assert((t->marked & LJ_GC_WEAK));
+    if ((t->marked & LJ_GC_WEAKVAL)) {
+      MSize i, asize = t->asize;
+      for (i = 0; i < asize; i++) {
+	/* Clear array slot when value is about to be collected. */
+	TValue *tv = arrayslot(t, i);
+	if (gc_mayclear(tv, 1))
+	  setnilV(tv);
+      }
+    }
+    if (t->hmask > 0) {
+      Node *node = noderef(t->node);
+      MSize i, hmask = t->hmask;
+      for (i = 0; i <= hmask; i++) {
+	Node *n = &node[i];
+	/* Clear hash slot when key or value is about to be collected. */
+	if (!tvisnil(&n->val) && (gc_mayclear(&n->key, 0) ||
+				  gc_mayclear(&n->val, 1)))
+	  setnilV(&n->val);
+      }
+    }
+    o = gcref(t->gclist);
+  }
+}
+
+/* Call a userdata or cdata finalizer. */
+static void gc_call_finalizer(global_State *g, lua_State *L,
+			      cTValue *mo, GCobj *o)
+{
+  /* Save and restore lots of state around the __gc callback. */
+  uint8_t oldh = hook_save(g);
+  MSize oldt = g->gc.threshold;
+  int errcode;
+  TValue *top;
+  lj_trace_abort(g);
+  top = L->top;
+  L->top = top+2;
+  hook_entergc(g);  /* Disable hooks and new traces during __gc. */
+  g->gc.threshold = LJ_MAX_MEM;  /* Prevent GC steps. */
+  copyTV(L, top, mo);
+  setgcV(L, top+1, o, ~o->gch.gct);
+  errcode = lj_vm_pcall(L, top+1, 1+0, -1);  /* Stack: |mo|o| -> | */
+  hook_restore(g, oldh);
+  g->gc.threshold = oldt;  /* Restore GC threshold. */
+  if (errcode)
+    lj_err_throw(L, errcode);  /* Propagate errors. */
+}
+
+/* Finalize one userdata or cdata object from the mmudata list. */
+static void gc_finalize(lua_State *L)
+{
+  global_State *g = G(L);
+  GCobj *o = gcnext(gcref(g->gc.mmudata));
+  cTValue *mo;
+  lua_assert(gcref(g->jit_L) == NULL);  /* Must not be called on trace. */
+  /* Unchain from list of userdata to be finalized. */
+  if (o == gcref(g->gc.mmudata))
+    setgcrefnull(g->gc.mmudata);
+  else
+    setgcrefr(gcref(g->gc.mmudata)->gch.nextgc, o->gch.nextgc);
+#if LJ_HASFFI
+  if (o->gch.gct == ~LJ_TCDATA) {
+    TValue tmp, *tv;
+    /* Add cdata back to the GC list and make it white. */
+    setgcrefr(o->gch.nextgc, g->gc.root);
+    setgcref(g->gc.root, o);
+    makewhite(g, o);
+    o->gch.marked &= (uint8_t)~LJ_GC_CDATA_FIN;
+    /* Resolve finalizer. */
+    setcdataV(L, &tmp, gco2cd(o));
+    tv = lj_tab_set(L, ctype_ctsG(g)->finalizer, &tmp);
+    if (!tvisnil(tv)) {
+      g->gc.nocdatafin = 0;
+      copyTV(L, &tmp, tv);
+      setnilV(tv);  /* Clear entry in finalizer table. */
+      gc_call_finalizer(g, L, &tmp, o);
+    }
+    return;
+  }
+#endif
+  /* Add userdata back to the main userdata list and make it white. */
+  setgcrefr(o->gch.nextgc, mainthread(g)->nextgc);
+  setgcref(mainthread(g)->nextgc, o);
+  makewhite(g, o);
+  /* Resolve the __gc metamethod. */
+  mo = lj_meta_fastg(g, tabref(gco2ud(o)->metatable), MM_gc);
+  if (mo)
+    gc_call_finalizer(g, L, mo, o);
+}
+
+/* Finalize all userdata objects from mmudata list. */
+void lj_gc_finalize_udata(lua_State *L)
+{
+  while (gcref(G(L)->gc.mmudata) != NULL)
+    gc_finalize(L);
+}
+
+#if LJ_HASFFI
+/* Finalize all cdata objects from finalizer table. */
+void lj_gc_finalize_cdata(lua_State *L)
+{
+  global_State *g = G(L);
+  CTState *cts = ctype_ctsG(g);
+  if (cts) {
+    GCtab *t = cts->finalizer;
+    Node *node = noderef(t->node);
+    ptrdiff_t i;
+    setgcrefnull(t->metatable);  /* Mark finalizer table as disabled. */
+    for (i = (ptrdiff_t)t->hmask; i >= 0; i--)
+      if (!tvisnil(&node[i].val) && tviscdata(&node[i].key)) {
+	GCobj *o = gcV(&node[i].key);
+	TValue tmp;
+	makewhite(g, o);
+	o->gch.marked &= (uint8_t)~LJ_GC_CDATA_FIN;
+	copyTV(L, &tmp, &node[i].val);
+	setnilV(&node[i].val);
+	gc_call_finalizer(g, L, &tmp, o);
+      }
+  }
+}
+#endif
+
+/* Free all remaining GC objects. */
+void lj_gc_freeall(global_State *g)
+{
+  MSize i, strmask;
+  /* Free everything, except super-fixed objects (the main thread). */
+  g->gc.currentwhite = LJ_GC_WHITES | LJ_GC_SFIXED;
+  gc_fullsweep(g, &g->gc.root);
+  strmask = g->strmask;
+  for (i = 0; i <= strmask; i++)  /* Free all string hash chains. */
+    gc_fullsweep(g, &g->strhash[i]);
+}
+
+/* -- Collector ----------------------------------------------------------- */
+
+/* Atomic part of the GC cycle, transitioning from mark to sweep phase. */
+static void atomic(global_State *g, lua_State *L)
+{
+  size_t udsize;
+
+  gc_mark_uv(g);  /* Need to remark open upvalues (the thread may be dead). */
+  gc_propagate_gray(g);  /* Propagate any left-overs. */
+
+  setgcrefr(g->gc.gray, g->gc.weak);  /* Empty the list of weak tables. */
+  setgcrefnull(g->gc.weak);
+  lua_assert(!iswhite(obj2gco(mainthread(g))));
+  gc_markobj(g, L);  /* Mark running thread. */
+  gc_traverse_curtrace(g);  /* Traverse current trace. */
+  gc_mark_gcroot(g);  /* Mark GC roots (again). */
+  gc_propagate_gray(g);  /* Propagate all of the above. */
+
+  setgcrefr(g->gc.gray, g->gc.grayagain);  /* Empty the 2nd chance list. */
+  setgcrefnull(g->gc.grayagain);
+  gc_propagate_gray(g);  /* Propagate it. */
+
+  udsize = lj_gc_separateudata(g, 0);  /* Separate userdata to be finalized. */
+  gc_mark_mmudata(g);  /* Mark them. */
+  udsize += gc_propagate_gray(g);  /* And propagate the marks. */
+
+  /* All marking done, clear weak tables. */
+  gc_clearweak(gcref(g->gc.weak));
+
+  /* Prepare for sweep phase. */
+  g->gc.currentwhite = (uint8_t)otherwhite(g);  /* Flip current white. */
+  g->strempty.marked = g->gc.currentwhite;
+  setmref(g->gc.sweep, &g->gc.root);
+  g->gc.estimate = g->gc.total - (MSize)udsize;  /* Initial estimate. */
+}
+
+/* GC state machine. Returns a cost estimate for each step performed. */
+static size_t gc_onestep(lua_State *L)
+{
+  global_State *g = G(L);
+  switch (g->gc.state) {
+  case GCSpause:
+    gc_mark_start(g);  /* Start a new GC cycle by marking all GC roots. */
+    return 0;
+  case GCSpropagate:
+    if (gcref(g->gc.gray) != NULL)
+      return propagatemark(g);  /* Propagate one gray object. */
+    g->gc.state = GCSatomic;  /* End of mark phase. */
+    return 0;
+  case GCSatomic:
+    if (gcref(g->jit_L))  /* Don't run atomic phase on trace. */
+      return LJ_MAX_MEM;
+    atomic(g, L);
+    g->gc.state = GCSsweepstring;  /* Start of sweep phase. */
+    g->gc.sweepstr = 0;
+    return 0;
+  case GCSsweepstring: {
+    MSize old = g->gc.total;
+    gc_fullsweep(g, &g->strhash[g->gc.sweepstr++]);  /* Sweep one chain. */
+    if (g->gc.sweepstr > g->strmask)
+      g->gc.state = GCSsweep;  /* All string hash chains sweeped. */
+    lua_assert(old >= g->gc.total);
+    g->gc.estimate -= old - g->gc.total;
+    return GCSWEEPCOST;
+    }
+  case GCSsweep: {
+    MSize old = g->gc.total;
+    setmref(g->gc.sweep, gc_sweep(g, mref(g->gc.sweep, GCRef), GCSWEEPMAX));
+    if (gcref(*mref(g->gc.sweep, GCRef)) == NULL) {
+      gc_shrink(g, L);
+      if (gcref(g->gc.mmudata)) {  /* Need any finalizations? */
+	g->gc.state = GCSfinalize;
+#if LJ_HASFFI
+	g->gc.nocdatafin = 1;
+#endif
+      } else {  /* Otherwise skip this phase to help the JIT. */
+	g->gc.state = GCSpause;  /* End of GC cycle. */
+	g->gc.debt = 0;
+      }
+    }
+    lua_assert(old >= g->gc.total);
+    g->gc.estimate -= old - g->gc.total;
+    return GCSWEEPMAX*GCSWEEPCOST;
+    }
+  case GCSfinalize:
+    if (gcref(g->gc.mmudata) != NULL) {
+      if (gcref(g->jit_L))  /* Don't call finalizers on trace. */
+	return LJ_MAX_MEM;
+      gc_finalize(L);  /* Finalize one userdata object. */
+      if (g->gc.estimate > GCFINALIZECOST)
+	g->gc.estimate -= GCFINALIZECOST;
+      return GCFINALIZECOST;
+    }
+#if LJ_HASFFI
+    if (!g->gc.nocdatafin) lj_tab_rehash(L, ctype_ctsG(g)->finalizer);
+#endif
+    g->gc.state = GCSpause;  /* End of GC cycle. */
+    g->gc.debt = 0;
+    return 0;
+  default:
+    lua_assert(0);
+    return 0;
+  }
+}
+
+/* Perform a limited amount of incremental GC steps. */
+int LJ_FASTCALL lj_gc_step(lua_State *L)
+{
+  global_State *g = G(L);
+  MSize lim;
+  int32_t ostate = g->vmstate;
+  setvmstate(g, GC);
+  lim = (GCSTEPSIZE/100) * g->gc.stepmul;
+  if (lim == 0)
+    lim = LJ_MAX_MEM;
+  if (g->gc.total > g->gc.threshold)
+    g->gc.debt += g->gc.total - g->gc.threshold;
+  do {
+    lim -= (MSize)gc_onestep(L);
+    if (g->gc.state == GCSpause) {
+      g->gc.threshold = (g->gc.estimate/100) * g->gc.pause;
+      g->vmstate = ostate;
+      return 1;  /* Finished a GC cycle. */
+    }
+  } while ((int32_t)lim > 0);
+  if (g->gc.debt < GCSTEPSIZE) {
+    g->gc.threshold = g->gc.total + GCSTEPSIZE;
+    g->vmstate = ostate;
+    return -1;
+  } else {
+    g->gc.debt -= GCSTEPSIZE;
+    g->gc.threshold = g->gc.total;
+    g->vmstate = ostate;
+    return 0;
+  }
+}
+
+/* Ditto, but fix the stack top first. */
+void LJ_FASTCALL lj_gc_step_fixtop(lua_State *L)
+{
+  if (curr_funcisL(L)) L->top = curr_topL(L);
+  lj_gc_step(L);
+}
+
+#if LJ_HASJIT
+/* Perform multiple GC steps. Called from JIT-compiled code. */
+int LJ_FASTCALL lj_gc_step_jit(global_State *g, MSize steps)
+{
+  lua_State *L = gco2th(gcref(g->jit_L));
+  L->base = mref(G(L)->jit_base, TValue);
+  L->top = curr_topL(L);
+  while (steps-- > 0 && lj_gc_step(L) == 0)
+    ;
+  /* Return 1 to force a trace exit. */
+  return (G(L)->gc.state == GCSatomic || G(L)->gc.state == GCSfinalize);
+}
+#endif
+
+/* Perform a full GC cycle. */
+void lj_gc_fullgc(lua_State *L)
+{
+  global_State *g = G(L);
+  int32_t ostate = g->vmstate;
+  setvmstate(g, GC);
+  if (g->gc.state <= GCSatomic) {  /* Caught somewhere in the middle. */
+    setmref(g->gc.sweep, &g->gc.root);  /* Sweep everything (preserving it). */
+    setgcrefnull(g->gc.gray);  /* Reset lists from partial propagation. */
+    setgcrefnull(g->gc.grayagain);
+    setgcrefnull(g->gc.weak);
+    g->gc.state = GCSsweepstring;  /* Fast forward to the sweep phase. */
+    g->gc.sweepstr = 0;
+  }
+  while (g->gc.state == GCSsweepstring || g->gc.state == GCSsweep)
+    gc_onestep(L);  /* Finish sweep. */
+  lua_assert(g->gc.state == GCSfinalize || g->gc.state == GCSpause);
+  /* Now perform a full GC. */
+  g->gc.state = GCSpause;
+  do { gc_onestep(L); } while (g->gc.state != GCSpause);
+  g->gc.threshold = (g->gc.estimate/100) * g->gc.pause;
+  g->vmstate = ostate;
+}
+
+/* -- Write barriers ------------------------------------------------------ */
+
+/* Move the GC propagation frontier forward. */
+void lj_gc_barrierf(global_State *g, GCobj *o, GCobj *v)
+{
+  lua_assert(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o));
+  lua_assert(g->gc.state != GCSfinalize && g->gc.state != GCSpause);
+  lua_assert(o->gch.gct != ~LJ_TTAB);
+  /* Preserve invariant during propagation. Otherwise it doesn't matter. */
+  if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic)
+    gc_mark(g, v);  /* Move frontier forward. */
+  else
+    makewhite(g, o);  /* Make it white to avoid the following barrier. */
+}
+
+/* Specialized barrier for closed upvalue. Pass &uv->tv. */
+void LJ_FASTCALL lj_gc_barrieruv(global_State *g, TValue *tv)
+{
+#define TV2MARKED(x) \
+  (*((uint8_t *)(x) - offsetof(GCupval, tv) + offsetof(GCupval, marked)))
+  if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic)
+    gc_mark(g, gcV(tv));
+  else
+    TV2MARKED(tv) = (TV2MARKED(tv) & (uint8_t)~LJ_GC_COLORS) | curwhite(g);
+#undef TV2MARKED
+}
+
+/* Close upvalue. Also needs a write barrier. */
+void lj_gc_closeuv(global_State *g, GCupval *uv)
+{
+  GCobj *o = obj2gco(uv);
+  /* Copy stack slot to upvalue itself and point to the copy. */
+  copyTV(mainthread(g), &uv->tv, uvval(uv));
+  setmref(uv->v, &uv->tv);
+  uv->closed = 1;
+  setgcrefr(o->gch.nextgc, g->gc.root);
+  setgcref(g->gc.root, o);
+  if (isgray(o)) {  /* A closed upvalue is never gray, so fix this. */
+    if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic) {
+      gray2black(o);  /* Make it black and preserve invariant. */
+      if (tviswhite(&uv->tv))
+	lj_gc_barrierf(g, o, gcV(&uv->tv));
+    } else {
+      makewhite(g, o);  /* Make it white, i.e. sweep the upvalue. */
+      lua_assert(g->gc.state != GCSfinalize && g->gc.state != GCSpause);
+    }
+  }
+}
+
+#if LJ_HASJIT
+/* Mark a trace if it's saved during the propagation phase. */
+void lj_gc_barriertrace(global_State *g, uint32_t traceno)
+{
+  if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic)
+    gc_marktrace(g, traceno);
+}
+#endif
+
+/* -- Allocator ----------------------------------------------------------- */
+
+/* Call pluggable memory allocator to allocate or resize a fragment. */
+void *lj_mem_realloc(lua_State *L, void *p, MSize osz, MSize nsz)
+{
+  global_State *g = G(L);
+  lua_assert((osz == 0) == (p == NULL));
+  p = g->allocf(g->allocd, p, osz, nsz);
+  if (p == NULL && nsz > 0)
+    lj_err_mem(L);
+  lua_assert((nsz == 0) == (p == NULL));
+  lua_assert(checkptr32(p));
+  g->gc.total = (g->gc.total - osz) + nsz;
+  return p;
+}
+
+/* Allocate new GC object and link it to the root set. */
+void * LJ_FASTCALL lj_mem_newgco(lua_State *L, MSize size)
+{
+  global_State *g = G(L);
+  GCobj *o = (GCobj *)g->allocf(g->allocd, NULL, 0, size);
+  if (o == NULL)
+    lj_err_mem(L);
+  lua_assert(checkptr32(o));
+  g->gc.total += size;
+  setgcrefr(o->gch.nextgc, g->gc.root);
+  setgcref(g->gc.root, o);
+  newwhite(g, o);
+  return o;
+}
+
+/* Resize growable vector. */
+void *lj_mem_grow(lua_State *L, void *p, MSize *szp, MSize lim, MSize esz)
+{
+  MSize sz = (*szp) << 1;
+  if (sz < LJ_MIN_VECSZ)
+    sz = LJ_MIN_VECSZ;
+  if (sz > lim)
+    sz = lim;
+  p = lj_mem_realloc(L, p, (*szp)*esz, sz*esz);
+  *szp = sz;
+  return p;
+}
+
diff --git a/lib/luajit/src/lj_gc.h b/lib/luajit/src/lj_gc.h
new file mode 100644
index 00000000..c85d0756
--- /dev/null
+++ b/lib/luajit/src/lj_gc.h
@@ -0,0 +1,134 @@
+/*
+** Garbage collector.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_GC_H
+#define _LJ_GC_H
+
+#include "lj_obj.h"
+
+/* Garbage collector states. Order matters. */
+enum {
+  GCSpause, GCSpropagate, GCSatomic, GCSsweepstring, GCSsweep, GCSfinalize
+};
+
+/* Bitmasks for marked field of GCobj. */
+#define LJ_GC_WHITE0	0x01
+#define LJ_GC_WHITE1	0x02
+#define LJ_GC_BLACK	0x04
+#define LJ_GC_FINALIZED	0x08
+#define LJ_GC_WEAKKEY	0x08
+#define LJ_GC_WEAKVAL	0x10
+#define LJ_GC_CDATA_FIN	0x10
+#define LJ_GC_FIXED	0x20
+#define LJ_GC_SFIXED	0x40
+
+#define LJ_GC_WHITES	(LJ_GC_WHITE0 | LJ_GC_WHITE1)
+#define LJ_GC_COLORS	(LJ_GC_WHITES | LJ_GC_BLACK)
+#define LJ_GC_WEAK	(LJ_GC_WEAKKEY | LJ_GC_WEAKVAL)
+
+/* Macros to test and set GCobj colors. */
+#define iswhite(x)	((x)->gch.marked & LJ_GC_WHITES)
+#define isblack(x)	((x)->gch.marked & LJ_GC_BLACK)
+#define isgray(x)	(!((x)->gch.marked & (LJ_GC_BLACK|LJ_GC_WHITES)))
+#define tviswhite(x)	(tvisgcv(x) && iswhite(gcV(x)))
+#define otherwhite(g)	(g->gc.currentwhite ^ LJ_GC_WHITES)
+#define isdead(g, v)	((v)->gch.marked & otherwhite(g) & LJ_GC_WHITES)
+
+#define curwhite(g)	((g)->gc.currentwhite & LJ_GC_WHITES)
+#define newwhite(g, x)	(obj2gco(x)->gch.marked = (uint8_t)curwhite(g))
+#define makewhite(g, x) \
+  ((x)->gch.marked = ((x)->gch.marked & (uint8_t)~LJ_GC_COLORS) | curwhite(g))
+#define flipwhite(x)	((x)->gch.marked ^= LJ_GC_WHITES)
+#define black2gray(x)	((x)->gch.marked &= (uint8_t)~LJ_GC_BLACK)
+#define fixstring(s)	((s)->marked |= LJ_GC_FIXED)
+#define markfinalized(x)	((x)->gch.marked |= LJ_GC_FINALIZED)
+
+/* Collector. */
+LJ_FUNC size_t lj_gc_separateudata(global_State *g, int all);
+LJ_FUNC void lj_gc_finalize_udata(lua_State *L);
+#if LJ_HASFFI
+LJ_FUNC void lj_gc_finalize_cdata(lua_State *L);
+#else
+#define lj_gc_finalize_cdata(L)		UNUSED(L)
+#endif
+LJ_FUNC void lj_gc_freeall(global_State *g);
+LJ_FUNCA int LJ_FASTCALL lj_gc_step(lua_State *L);
+LJ_FUNCA void LJ_FASTCALL lj_gc_step_fixtop(lua_State *L);
+#if LJ_HASJIT
+LJ_FUNC int LJ_FASTCALL lj_gc_step_jit(global_State *g, MSize steps);
+#endif
+LJ_FUNC void lj_gc_fullgc(lua_State *L);
+
+/* GC check: drive collector forward if the GC threshold has been reached. */
+#define lj_gc_check(L) \
+  { if (LJ_UNLIKELY(G(L)->gc.total >= G(L)->gc.threshold)) \
+      lj_gc_step(L); }
+#define lj_gc_check_fixtop(L) \
+  { if (LJ_UNLIKELY(G(L)->gc.total >= G(L)->gc.threshold)) \
+      lj_gc_step_fixtop(L); }
+
+/* Write barriers. */
+LJ_FUNC void lj_gc_barrierf(global_State *g, GCobj *o, GCobj *v);
+LJ_FUNCA void LJ_FASTCALL lj_gc_barrieruv(global_State *g, TValue *tv);
+LJ_FUNC void lj_gc_closeuv(global_State *g, GCupval *uv);
+#if LJ_HASJIT
+LJ_FUNC void lj_gc_barriertrace(global_State *g, uint32_t traceno);
+#endif
+
+/* Move the GC propagation frontier back for tables (make it gray again). */
+static LJ_AINLINE void lj_gc_barrierback(global_State *g, GCtab *t)
+{
+  GCobj *o = obj2gco(t);
+  lua_assert(isblack(o) && !isdead(g, o));
+  lua_assert(g->gc.state != GCSfinalize && g->gc.state != GCSpause);
+  black2gray(o);
+  setgcrefr(t->gclist, g->gc.grayagain);
+  setgcref(g->gc.grayagain, o);
+}
+
+/* Barrier for stores to table objects. TValue and GCobj variant. */
+#define lj_gc_anybarriert(L, t)  \
+  { if (LJ_UNLIKELY(isblack(obj2gco(t)))) lj_gc_barrierback(G(L), (t)); }
+#define lj_gc_barriert(L, t, tv) \
+  { if (tviswhite(tv) && isblack(obj2gco(t))) \
+      lj_gc_barrierback(G(L), (t)); }
+#define lj_gc_objbarriert(L, t, o)  \
+  { if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) \
+      lj_gc_barrierback(G(L), (t)); }
+
+/* Barrier for stores to any other object. TValue and GCobj variant. */
+#define lj_gc_barrier(L, p, tv) \
+  { if (tviswhite(tv) && isblack(obj2gco(p))) \
+      lj_gc_barrierf(G(L), obj2gco(p), gcV(tv)); }
+#define lj_gc_objbarrier(L, p, o) \
+  { if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
+      lj_gc_barrierf(G(L), obj2gco(p), obj2gco(o)); }
+
+/* Allocator. */
+LJ_FUNC void *lj_mem_realloc(lua_State *L, void *p, MSize osz, MSize nsz);
+LJ_FUNC void * LJ_FASTCALL lj_mem_newgco(lua_State *L, MSize size);
+LJ_FUNC void *lj_mem_grow(lua_State *L, void *p,
+			  MSize *szp, MSize lim, MSize esz);
+
+#define lj_mem_new(L, s)	lj_mem_realloc(L, NULL, 0, (s))
+
+static LJ_AINLINE void lj_mem_free(global_State *g, void *p, size_t osize)
+{
+  g->gc.total -= (MSize)osize;
+  g->allocf(g->allocd, p, osize, 0);
+}
+
+#define lj_mem_newvec(L, n, t)	((t *)lj_mem_new(L, (MSize)((n)*sizeof(t))))
+#define lj_mem_reallocvec(L, p, on, n, t) \
+  ((p) = (t *)lj_mem_realloc(L, p, (on)*sizeof(t), (MSize)((n)*sizeof(t))))
+#define lj_mem_growvec(L, p, n, m, t) \
+  ((p) = (t *)lj_mem_grow(L, (p), &(n), (m), (MSize)sizeof(t)))
+#define lj_mem_freevec(g, p, n, t)	lj_mem_free(g, (p), (n)*sizeof(t))
+
+#define lj_mem_newobj(L, t)	((t *)lj_mem_newgco(L, sizeof(t)))
+#define lj_mem_newt(L, s, t)	((t *)lj_mem_new(L, (s)))
+#define lj_mem_freet(g, p)	lj_mem_free(g, (p), sizeof(*(p)))
+
+#endif
diff --git a/lib/luajit/src/lj_gdbjit.c b/lib/luajit/src/lj_gdbjit.c
new file mode 100644
index 00000000..5e7fca1c
--- /dev/null
+++ b/lib/luajit/src/lj_gdbjit.c
@@ -0,0 +1,793 @@
+/*
+** Client for the GDB JIT API.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_gdbjit_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_frame.h"
+#include "lj_jit.h"
+#include "lj_dispatch.h"
+
+/* This is not compiled in by default.
+** Enable with -DLUAJIT_USE_GDBJIT in the Makefile and recompile everything.
+*/
+#ifdef LUAJIT_USE_GDBJIT
+
+/* The GDB JIT API allows JIT compilers to pass debug information about
+** JIT-compiled code back to GDB. You need at least GDB 7.0 or higher
+** to see it in action.
+**
+** This is a passive API, so it works even when not running under GDB
+** or when attaching to an already running process. Alas, this implies
+** enabling it always has a non-negligible overhead -- do not use in
+** release mode!
+**
+** The LuaJIT GDB JIT client is rather minimal at the moment. It gives
+** each trace a symbol name and adds a source location and frame unwind
+** information. Obviously LuaJIT itself and any embedding C application
+** should be compiled with debug symbols, too (see the Makefile).
+**
+** Traces are named TRACE_1, TRACE_2, ... these correspond to the trace
+** numbers from -jv or -jdump. Use "break TRACE_1" or "tbreak TRACE_1" etc.
+** to set breakpoints on specific traces (even ahead of their creation).
+**
+** The source location for each trace allows listing the corresponding
+** source lines with the GDB command "list" (but only if the Lua source
+** has been loaded from a file). Currently this is always set to the
+** location where the trace has been started.
+**
+** Frame unwind information can be inspected with the GDB command
+** "info frame". This also allows proper backtraces across JIT-compiled
+** code with the GDB command "bt".
+**
+** You probably want to add the following settings to a .gdbinit file
+** (or add them to ~/.gdbinit):
+**   set disassembly-flavor intel
+**   set breakpoint pending on
+**
+** Here's a sample GDB session:
+** ------------------------------------------------------------------------
+
+$ cat >x.lua
+for outer=1,100 do
+  for inner=1,100 do end
+end
+^D
+
+$ luajit -jv x.lua
+[TRACE   1 x.lua:2]
+[TRACE   2 (1/3) x.lua:1 -> 1]
+
+$ gdb --quiet --args luajit x.lua
+(gdb) tbreak TRACE_1
+Function "TRACE_1" not defined.
+Temporary breakpoint 1 (TRACE_1) pending.
+(gdb) run
+Starting program: luajit x.lua
+
+Temporary breakpoint 1, TRACE_1 () at x.lua:2
+2	  for inner=1,100 do end
+(gdb) list
+1	for outer=1,100 do
+2	  for inner=1,100 do end
+3	end
+(gdb) bt
+#0  TRACE_1 () at x.lua:2
+#1  0x08053690 in lua_pcall [...]
+[...]
+#7  0x0806ff90 in main [...]
+(gdb) disass TRACE_1
+Dump of assembler code for function TRACE_1:
+0xf7fd9fba <TRACE_1+0>:	mov    DWORD PTR ds:0xf7e0e2a0,0x1
+0xf7fd9fc4 <TRACE_1+10>:	movsd  xmm7,QWORD PTR [edx+0x20]
+[...]
+0xf7fd9ff8 <TRACE_1+62>:	jmp    0xf7fd2014
+End of assembler dump.
+(gdb) tbreak TRACE_2
+Function "TRACE_2" not defined.
+Temporary breakpoint 2 (TRACE_2) pending.
+(gdb) cont
+Continuing.
+
+Temporary breakpoint 2, TRACE_2 () at x.lua:1
+1	for outer=1,100 do
+(gdb) info frame
+Stack level 0, frame at 0xffffd7c0:
+ eip = 0xf7fd9f60 in TRACE_2 (x.lua:1); saved eip 0x8053690
+ called by frame at 0xffffd7e0
+ source language unknown.
+ Arglist at 0xffffd78c, args:
+ Locals at 0xffffd78c, Previous frame's sp is 0xffffd7c0
+ Saved registers:
+  ebx at 0xffffd7ac, ebp at 0xffffd7b8, esi at 0xffffd7b0, edi at 0xffffd7b4,
+  eip at 0xffffd7bc
+(gdb)
+
+** ------------------------------------------------------------------------
+*/
+
+/* -- GDB JIT API --------------------------------------------------------- */
+
+/* GDB JIT actions. */
+enum {
+  GDBJIT_NOACTION = 0,
+  GDBJIT_REGISTER,
+  GDBJIT_UNREGISTER
+};
+
+/* GDB JIT entry. */
+typedef struct GDBJITentry {
+  struct GDBJITentry *next_entry;
+  struct GDBJITentry *prev_entry;
+  const char *symfile_addr;
+  uint64_t symfile_size;
+} GDBJITentry;
+
+/* GDB JIT descriptor. */
+typedef struct GDBJITdesc {
+  uint32_t version;
+  uint32_t action_flag;
+  GDBJITentry *relevant_entry;
+  GDBJITentry *first_entry;
+} GDBJITdesc;
+
+GDBJITdesc __jit_debug_descriptor = {
+  1, GDBJIT_NOACTION, NULL, NULL
+};
+
+/* GDB sets a breakpoint at this function. */
+void LJ_NOINLINE __jit_debug_register_code()
+{
+  __asm__ __volatile__("");
+};
+
+/* -- In-memory ELF object definitions ------------------------------------ */
+
+/* ELF definitions. */
+typedef struct ELFheader {
+  uint8_t emagic[4];
+  uint8_t eclass;
+  uint8_t eendian;
+  uint8_t eversion;
+  uint8_t eosabi;
+  uint8_t eabiversion;
+  uint8_t epad[7];
+  uint16_t type;
+  uint16_t machine;
+  uint32_t version;
+  uintptr_t entry;
+  uintptr_t phofs;
+  uintptr_t shofs;
+  uint32_t flags;
+  uint16_t ehsize;
+  uint16_t phentsize;
+  uint16_t phnum;
+  uint16_t shentsize;
+  uint16_t shnum;
+  uint16_t shstridx;
+} ELFheader;
+
+typedef struct ELFsectheader {
+  uint32_t name;
+  uint32_t type;
+  uintptr_t flags;
+  uintptr_t addr;
+  uintptr_t ofs;
+  uintptr_t size;
+  uint32_t link;
+  uint32_t info;
+  uintptr_t align;
+  uintptr_t entsize;
+} ELFsectheader;
+
+#define ELFSECT_IDX_ABS		0xfff1
+
+enum {
+  ELFSECT_TYPE_PROGBITS = 1,
+  ELFSECT_TYPE_SYMTAB = 2,
+  ELFSECT_TYPE_STRTAB = 3,
+  ELFSECT_TYPE_NOBITS = 8
+};
+
+#define ELFSECT_FLAGS_WRITE	1
+#define ELFSECT_FLAGS_ALLOC	2
+#define ELFSECT_FLAGS_EXEC	4
+
+typedef struct ELFsymbol {
+#if LJ_64
+  uint32_t name;
+  uint8_t info;
+  uint8_t other;
+  uint16_t sectidx;
+  uintptr_t value;
+  uint64_t size;
+#else
+  uint32_t name;
+  uintptr_t value;
+  uint32_t size;
+  uint8_t info;
+  uint8_t other;
+  uint16_t sectidx;
+#endif
+} ELFsymbol;
+
+enum {
+  ELFSYM_TYPE_FUNC = 2,
+  ELFSYM_TYPE_FILE = 4,
+  ELFSYM_BIND_LOCAL = 0 << 4,
+  ELFSYM_BIND_GLOBAL = 1 << 4,
+};
+
+/* DWARF definitions. */
+#define DW_CIE_VERSION	1
+
+enum {
+  DW_CFA_nop = 0x0,
+  DW_CFA_offset_extended = 0x5,
+  DW_CFA_def_cfa = 0xc,
+  DW_CFA_def_cfa_offset = 0xe,
+  DW_CFA_offset_extended_sf = 0x11,
+  DW_CFA_advance_loc = 0x40,
+  DW_CFA_offset = 0x80
+};
+
+enum {
+  DW_EH_PE_udata4 = 3,
+  DW_EH_PE_textrel = 0x20
+};
+
+enum {
+  DW_TAG_compile_unit = 0x11
+};
+
+enum {
+  DW_children_no = 0,
+  DW_children_yes = 1
+};
+
+enum {
+  DW_AT_name = 0x03,
+  DW_AT_stmt_list = 0x10,
+  DW_AT_low_pc = 0x11,
+  DW_AT_high_pc = 0x12
+};
+
+enum {
+  DW_FORM_addr = 0x01,
+  DW_FORM_data4 = 0x06,
+  DW_FORM_string = 0x08
+};
+
+enum {
+  DW_LNS_extended_op = 0,
+  DW_LNS_copy = 1,
+  DW_LNS_advance_pc = 2,
+  DW_LNS_advance_line = 3
+};
+
+enum {
+  DW_LNE_end_sequence = 1,
+  DW_LNE_set_address = 2
+};
+
+enum {
+#if LJ_TARGET_X86
+  DW_REG_AX, DW_REG_CX, DW_REG_DX, DW_REG_BX,
+  DW_REG_SP, DW_REG_BP, DW_REG_SI, DW_REG_DI,
+  DW_REG_RA,
+#elif LJ_TARGET_X64
+  /* Yes, the order is strange, but correct. */
+  DW_REG_AX, DW_REG_DX, DW_REG_CX, DW_REG_BX,
+  DW_REG_SI, DW_REG_DI, DW_REG_BP, DW_REG_SP,
+  DW_REG_8, DW_REG_9, DW_REG_10, DW_REG_11,
+  DW_REG_12, DW_REG_13, DW_REG_14, DW_REG_15,
+  DW_REG_RA,
+#elif LJ_TARGET_ARM
+  DW_REG_SP = 13,
+  DW_REG_RA = 14,
+#elif LJ_TARGET_PPC
+  DW_REG_SP = 1,
+  DW_REG_RA = 65,
+  DW_REG_CR = 70,
+#elif LJ_TARGET_MIPS
+  DW_REG_SP = 29,
+  DW_REG_RA = 31,
+#else
+#error "Unsupported target architecture"
+#endif
+};
+
+/* Minimal list of sections for the in-memory ELF object. */
+enum {
+  GDBJIT_SECT_NULL,
+  GDBJIT_SECT_text,
+  GDBJIT_SECT_eh_frame,
+  GDBJIT_SECT_shstrtab,
+  GDBJIT_SECT_strtab,
+  GDBJIT_SECT_symtab,
+  GDBJIT_SECT_debug_info,
+  GDBJIT_SECT_debug_abbrev,
+  GDBJIT_SECT_debug_line,
+  GDBJIT_SECT__MAX
+};
+
+enum {
+  GDBJIT_SYM_UNDEF,
+  GDBJIT_SYM_FILE,
+  GDBJIT_SYM_FUNC,
+  GDBJIT_SYM__MAX
+};
+
+/* In-memory ELF object. */
+typedef struct GDBJITobj {
+  ELFheader hdr;			/* ELF header. */
+  ELFsectheader sect[GDBJIT_SECT__MAX];	/* ELF sections. */
+  ELFsymbol sym[GDBJIT_SYM__MAX];	/* ELF symbol table. */
+  uint8_t space[4096];			/* Space for various section data. */
+} GDBJITobj;
+
+/* Combined structure for GDB JIT entry and ELF object. */
+typedef struct GDBJITentryobj {
+  GDBJITentry entry;
+  size_t sz;
+  GDBJITobj obj;
+} GDBJITentryobj;
+
+/* Template for in-memory ELF header. */
+static const ELFheader elfhdr_template = {
+  .emagic = { 0x7f, 'E', 'L', 'F' },
+  .eclass = LJ_64 ? 2 : 1,
+  .eendian = LJ_ENDIAN_SELECT(1, 2),
+  .eversion = 1,
+#if LJ_TARGET_LINUX
+  .eosabi = 0,  /* Nope, it's not 3. */
+#elif defined(__FreeBSD__)
+  .eosabi = 9,
+#elif defined(__NetBSD__)
+  .eosabi = 2,
+#elif defined(__OpenBSD__)
+  .eosabi = 12,
+#elif (defined(__sun__) && defined(__svr4__))
+  .eosabi = 6,
+#else
+  .eosabi = 0,
+#endif
+  .eabiversion = 0,
+  .epad = { 0, 0, 0, 0, 0, 0, 0 },
+  .type = 1,
+#if LJ_TARGET_X86
+  .machine = 3,
+#elif LJ_TARGET_X64
+  .machine = 62,
+#elif LJ_TARGET_ARM
+  .machine = 40,
+#elif LJ_TARGET_PPC
+  .machine = 20,
+#elif LJ_TARGET_MIPS
+  .machine = 8,
+#else
+#error "Unsupported target architecture"
+#endif
+  .version = 1,
+  .entry = 0,
+  .phofs = 0,
+  .shofs = offsetof(GDBJITobj, sect),
+  .flags = 0,
+  .ehsize = sizeof(ELFheader),
+  .phentsize = 0,
+  .phnum = 0,
+  .shentsize = sizeof(ELFsectheader),
+  .shnum = GDBJIT_SECT__MAX,
+  .shstridx = GDBJIT_SECT_shstrtab
+};
+
+/* -- In-memory ELF object generation ------------------------------------- */
+
+/* Context for generating the ELF object for the GDB JIT API. */
+typedef struct GDBJITctx {
+  uint8_t *p;		/* Pointer to next address in obj.space. */
+  uint8_t *startp;	/* Pointer to start address in obj.space. */
+  GCtrace *T;		/* Generate symbols for this trace. */
+  uintptr_t mcaddr;	/* Machine code address. */
+  MSize szmcode;	/* Size of machine code. */
+  MSize spadjp;		/* Stack adjustment for parent trace or interpreter. */
+  MSize spadj;		/* Stack adjustment for trace itself. */
+  BCLine lineno;	/* Starting line number. */
+  const char *filename;	/* Starting file name. */
+  size_t objsize;	/* Final size of ELF object. */
+  GDBJITobj obj;	/* In-memory ELF object. */
+} GDBJITctx;
+
+/* Add a zero-terminated string. */
+static uint32_t gdbjit_strz(GDBJITctx *ctx, const char *str)
+{
+  uint8_t *p = ctx->p;
+  uint32_t ofs = (uint32_t)(p - ctx->startp);
+  do {
+    *p++ = (uint8_t)*str;
+  } while (*str++);
+  ctx->p = p;
+  return ofs;
+}
+
+/* Append a decimal number. */
+static void gdbjit_catnum(GDBJITctx *ctx, uint32_t n)
+{
+  if (n >= 10) { uint32_t m = n / 10; n = n % 10; gdbjit_catnum(ctx, m); }
+  *ctx->p++ = '0' + n;
+}
+
+/* Add a ULEB128 value. */
+static void gdbjit_uleb128(GDBJITctx *ctx, uint32_t v)
+{
+  uint8_t *p = ctx->p;
+  for (; v >= 0x80; v >>= 7)
+    *p++ = (uint8_t)((v & 0x7f) | 0x80);
+  *p++ = (uint8_t)v;
+  ctx->p = p;
+}
+
+/* Add a SLEB128 value. */
+static void gdbjit_sleb128(GDBJITctx *ctx, int32_t v)
+{
+  uint8_t *p = ctx->p;
+  for (; (uint32_t)(v+0x40) >= 0x80; v >>= 7)
+    *p++ = (uint8_t)((v & 0x7f) | 0x80);
+  *p++ = (uint8_t)(v & 0x7f);
+  ctx->p = p;
+}
+
+/* Shortcuts to generate DWARF structures. */
+#define DB(x)		(*p++ = (x))
+#define DI8(x)		(*(int8_t *)p = (x), p++)
+#define DU16(x)		(*(uint16_t *)p = (x), p += 2)
+#define DU32(x)		(*(uint32_t *)p = (x), p += 4)
+#define DADDR(x)	(*(uintptr_t *)p = (x), p += sizeof(uintptr_t))
+#define DUV(x)		(ctx->p = p, gdbjit_uleb128(ctx, (x)), p = ctx->p)
+#define DSV(x)		(ctx->p = p, gdbjit_sleb128(ctx, (x)), p = ctx->p)
+#define DSTR(str)	(ctx->p = p, gdbjit_strz(ctx, (str)), p = ctx->p)
+#define DALIGNNOP(s)	while ((uintptr_t)p & ((s)-1)) *p++ = DW_CFA_nop
+#define DSECT(name, stmt) \
+  { uint32_t *szp_##name = (uint32_t *)p; p += 4; stmt \
+    *szp_##name = (uint32_t)((p-(uint8_t *)szp_##name)-4); } \
+
+/* Initialize ELF section headers. */
+static void LJ_FASTCALL gdbjit_secthdr(GDBJITctx *ctx)
+{
+  ELFsectheader *sect;
+
+  *ctx->p++ = '\0';  /* Empty string at start of string table. */
+
+#define SECTDEF(id, tp, al) \
+  sect = &ctx->obj.sect[GDBJIT_SECT_##id]; \
+  sect->name = gdbjit_strz(ctx, "." #id); \
+  sect->type = ELFSECT_TYPE_##tp; \
+  sect->align = (al)
+
+  SECTDEF(text, NOBITS, 16);
+  sect->flags = ELFSECT_FLAGS_ALLOC|ELFSECT_FLAGS_EXEC;
+  sect->addr = ctx->mcaddr;
+  sect->ofs = 0;
+  sect->size = ctx->szmcode;
+
+  SECTDEF(eh_frame, PROGBITS, sizeof(uintptr_t));
+  sect->flags = ELFSECT_FLAGS_ALLOC;
+
+  SECTDEF(shstrtab, STRTAB, 1);
+  SECTDEF(strtab, STRTAB, 1);
+
+  SECTDEF(symtab, SYMTAB, sizeof(uintptr_t));
+  sect->ofs = offsetof(GDBJITobj, sym);
+  sect->size = sizeof(ctx->obj.sym);
+  sect->link = GDBJIT_SECT_strtab;
+  sect->entsize = sizeof(ELFsymbol);
+  sect->info = GDBJIT_SYM_FUNC;
+
+  SECTDEF(debug_info, PROGBITS, 1);
+  SECTDEF(debug_abbrev, PROGBITS, 1);
+  SECTDEF(debug_line, PROGBITS, 1);
+
+#undef SECTDEF
+}
+
+/* Initialize symbol table. */
+static void LJ_FASTCALL gdbjit_symtab(GDBJITctx *ctx)
+{
+  ELFsymbol *sym;
+
+  *ctx->p++ = '\0';  /* Empty string at start of string table. */
+
+  sym = &ctx->obj.sym[GDBJIT_SYM_FILE];
+  sym->name = gdbjit_strz(ctx, "JIT mcode");
+  sym->sectidx = ELFSECT_IDX_ABS;
+  sym->info = ELFSYM_TYPE_FILE|ELFSYM_BIND_LOCAL;
+
+  sym = &ctx->obj.sym[GDBJIT_SYM_FUNC];
+  sym->name = gdbjit_strz(ctx, "TRACE_"); ctx->p--;
+  gdbjit_catnum(ctx, ctx->T->traceno); *ctx->p++ = '\0';
+  sym->sectidx = GDBJIT_SECT_text;
+  sym->value = 0;
+  sym->size = ctx->szmcode;
+  sym->info = ELFSYM_TYPE_FUNC|ELFSYM_BIND_GLOBAL;
+}
+
+/* Initialize .eh_frame section. */
+static void LJ_FASTCALL gdbjit_ehframe(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+  uint8_t *framep = p;
+
+  /* Emit DWARF EH CIE. */
+  DSECT(CIE,
+    DU32(0);			/* Offset to CIE itself. */
+    DB(DW_CIE_VERSION);
+    DSTR("zR");			/* Augmentation. */
+    DUV(1);			/* Code alignment factor. */
+    DSV(-(int32_t)sizeof(uintptr_t));  /* Data alignment factor. */
+    DB(DW_REG_RA);		/* Return address register. */
+    DB(1); DB(DW_EH_PE_textrel|DW_EH_PE_udata4);  /* Augmentation data. */
+    DB(DW_CFA_def_cfa); DUV(DW_REG_SP); DUV(sizeof(uintptr_t));
+#if LJ_TARGET_PPC
+    DB(DW_CFA_offset_extended_sf); DB(DW_REG_RA); DSV(-1);
+#else
+    DB(DW_CFA_offset|DW_REG_RA); DUV(1);
+#endif
+    DALIGNNOP(sizeof(uintptr_t));
+  )
+
+  /* Emit DWARF EH FDE. */
+  DSECT(FDE,
+    DU32((uint32_t)(p-framep));	/* Offset to CIE. */
+    DU32(0);			/* Machine code offset relative to .text. */
+    DU32(ctx->szmcode);		/* Machine code length. */
+    DB(0);			/* Augmentation data. */
+    /* Registers saved in CFRAME. */
+#if LJ_TARGET_X86
+    DB(DW_CFA_offset|DW_REG_BP); DUV(2);
+    DB(DW_CFA_offset|DW_REG_DI); DUV(3);
+    DB(DW_CFA_offset|DW_REG_SI); DUV(4);
+    DB(DW_CFA_offset|DW_REG_BX); DUV(5);
+#elif LJ_TARGET_X64
+    DB(DW_CFA_offset|DW_REG_BP); DUV(2);
+    DB(DW_CFA_offset|DW_REG_BX); DUV(3);
+    DB(DW_CFA_offset|DW_REG_15); DUV(4);
+    DB(DW_CFA_offset|DW_REG_14); DUV(5);
+    /* Extra registers saved for JIT-compiled code. */
+    DB(DW_CFA_offset|DW_REG_13); DUV(9);
+    DB(DW_CFA_offset|DW_REG_12); DUV(10);
+#elif LJ_TARGET_ARM
+    {
+      int i;
+      for (i = 11; i >= 4; i--) { DB(DW_CFA_offset|i); DUV(2+(11-i)); }
+    }
+#elif LJ_TARGET_PPC
+    {
+      int i;
+      DB(DW_CFA_offset_extended); DB(DW_REG_CR); DUV(55);
+      for (i = 14; i <= 31; i++) {
+	DB(DW_CFA_offset|i); DUV(37+(31-i));
+	DB(DW_CFA_offset|32|i); DUV(2+2*(31-i));
+      }
+    }
+#elif LJ_TARGET_MIPS
+    {
+      int i;
+      DB(DW_CFA_offset|30); DUV(2);
+      for (i = 23; i >= 16; i--) { DB(DW_CFA_offset|i); DUV(26-i); }
+      for (i = 30; i >= 20; i -= 2) { DB(DW_CFA_offset|32|i); DUV(42-i); }
+    }
+#else
+#error "Unsupported target architecture"
+#endif
+    if (ctx->spadjp != ctx->spadj) {  /* Parent/interpreter stack frame size. */
+      DB(DW_CFA_def_cfa_offset); DUV(ctx->spadjp);
+      DB(DW_CFA_advance_loc|1);  /* Only an approximation. */
+    }
+    DB(DW_CFA_def_cfa_offset); DUV(ctx->spadj);  /* Trace stack frame size. */
+    DALIGNNOP(sizeof(uintptr_t));
+  )
+
+  ctx->p = p;
+}
+
+/* Initialize .debug_info section. */
+static void LJ_FASTCALL gdbjit_debuginfo(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+
+  DSECT(info,
+    DU16(2);			/* DWARF version. */
+    DU32(0);			/* Abbrev offset. */
+    DB(sizeof(uintptr_t));	/* Pointer size. */
+
+    DUV(1);			/* Abbrev #1: DW_TAG_compile_unit. */
+    DSTR(ctx->filename);	/* DW_AT_name. */
+    DADDR(ctx->mcaddr);		/* DW_AT_low_pc. */
+    DADDR(ctx->mcaddr + ctx->szmcode);  /* DW_AT_high_pc. */
+    DU32(0);			/* DW_AT_stmt_list. */
+  )
+
+  ctx->p = p;
+}
+
+/* Initialize .debug_abbrev section. */
+static void LJ_FASTCALL gdbjit_debugabbrev(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+
+  /* Abbrev #1: DW_TAG_compile_unit. */
+  DUV(1); DUV(DW_TAG_compile_unit);
+  DB(DW_children_no);
+  DUV(DW_AT_name);	DUV(DW_FORM_string);
+  DUV(DW_AT_low_pc);	DUV(DW_FORM_addr);
+  DUV(DW_AT_high_pc);	DUV(DW_FORM_addr);
+  DUV(DW_AT_stmt_list);	DUV(DW_FORM_data4);
+  DB(0); DB(0);
+
+  ctx->p = p;
+}
+
+#define DLNE(op, s)	(DB(DW_LNS_extended_op), DUV(1+(s)), DB((op)))
+
+/* Initialize .debug_line section. */
+static void LJ_FASTCALL gdbjit_debugline(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+
+  DSECT(line,
+    DU16(2);			/* DWARF version. */
+    DSECT(header,
+      DB(1);			/* Minimum instruction length. */
+      DB(1);			/* is_stmt. */
+      DI8(0);			/* Line base for special opcodes. */
+      DB(2);			/* Line range for special opcodes. */
+      DB(3+1);			/* Opcode base at DW_LNS_advance_line+1. */
+      DB(0); DB(1); DB(1);	/* Standard opcode lengths. */
+      /* Directory table. */
+      DB(0);
+      /* File name table. */
+      DSTR(ctx->filename); DUV(0); DUV(0); DUV(0);
+      DB(0);
+    )
+
+    DLNE(DW_LNE_set_address, sizeof(uintptr_t)); DADDR(ctx->mcaddr);
+    if (ctx->lineno) {
+      DB(DW_LNS_advance_line); DSV(ctx->lineno-1);
+    }
+    DB(DW_LNS_copy);
+    DB(DW_LNS_advance_pc); DUV(ctx->szmcode);
+    DLNE(DW_LNE_end_sequence, 0);
+  )
+
+  ctx->p = p;
+}
+
+#undef DLNE
+
+/* Undef shortcuts. */
+#undef DB
+#undef DI8
+#undef DU16
+#undef DU32
+#undef DADDR
+#undef DUV
+#undef DSV
+#undef DSTR
+#undef DALIGNNOP
+#undef DSECT
+
+/* Type of a section initializer callback. */
+typedef void (LJ_FASTCALL *GDBJITinitf)(GDBJITctx *ctx);
+
+/* Call section initializer and set the section offset and size. */
+static void gdbjit_initsect(GDBJITctx *ctx, int sect, GDBJITinitf initf)
+{
+  ctx->startp = ctx->p;
+  ctx->obj.sect[sect].ofs = (uintptr_t)((char *)ctx->p - (char *)&ctx->obj);
+  initf(ctx);
+  ctx->obj.sect[sect].size = (uintptr_t)(ctx->p - ctx->startp);
+}
+
+#define SECTALIGN(p, a) \
+  ((p) = (uint8_t *)(((uintptr_t)(p) + ((a)-1)) & ~(uintptr_t)((a)-1)))
+
+/* Build in-memory ELF object. */
+static void gdbjit_buildobj(GDBJITctx *ctx)
+{
+  GDBJITobj *obj = &ctx->obj;
+  /* Fill in ELF header and clear structures. */
+  memcpy(&obj->hdr, &elfhdr_template, sizeof(ELFheader));
+  memset(&obj->sect, 0, sizeof(ELFsectheader)*GDBJIT_SECT__MAX);
+  memset(&obj->sym, 0, sizeof(ELFsymbol)*GDBJIT_SYM__MAX);
+  /* Initialize sections. */
+  ctx->p = obj->space;
+  gdbjit_initsect(ctx, GDBJIT_SECT_shstrtab, gdbjit_secthdr);
+  gdbjit_initsect(ctx, GDBJIT_SECT_strtab, gdbjit_symtab);
+  gdbjit_initsect(ctx, GDBJIT_SECT_debug_info, gdbjit_debuginfo);
+  gdbjit_initsect(ctx, GDBJIT_SECT_debug_abbrev, gdbjit_debugabbrev);
+  gdbjit_initsect(ctx, GDBJIT_SECT_debug_line, gdbjit_debugline);
+  SECTALIGN(ctx->p, sizeof(uintptr_t));
+  gdbjit_initsect(ctx, GDBJIT_SECT_eh_frame, gdbjit_ehframe);
+  ctx->objsize = (size_t)((char *)ctx->p - (char *)obj);
+  lua_assert(ctx->objsize < sizeof(GDBJITobj));
+}
+
+#undef SECTALIGN
+
+/* -- Interface to GDB JIT API -------------------------------------------- */
+
+/* Add new entry to GDB JIT symbol chain. */
+static void gdbjit_newentry(lua_State *L, GDBJITctx *ctx)
+{
+  /* Allocate memory for GDB JIT entry and ELF object. */
+  MSize sz = (MSize)(sizeof(GDBJITentryobj) - sizeof(GDBJITobj) + ctx->objsize);
+  GDBJITentryobj *eo = lj_mem_newt(L, sz, GDBJITentryobj);
+  memcpy(&eo->obj, &ctx->obj, ctx->objsize);  /* Copy ELF object. */
+  eo->sz = sz;
+  ctx->T->gdbjit_entry = (void *)eo;
+  /* Link new entry to chain and register it. */
+  eo->entry.prev_entry = NULL;
+  eo->entry.next_entry = __jit_debug_descriptor.first_entry;
+  if (eo->entry.next_entry)
+    eo->entry.next_entry->prev_entry = &eo->entry;
+  eo->entry.symfile_addr = (const char *)&eo->obj;
+  eo->entry.symfile_size = ctx->objsize;
+  __jit_debug_descriptor.first_entry = &eo->entry;
+  __jit_debug_descriptor.relevant_entry = &eo->entry;
+  __jit_debug_descriptor.action_flag = GDBJIT_REGISTER;
+  __jit_debug_register_code();
+}
+
+/* Add debug info for newly compiled trace and notify GDB. */
+void lj_gdbjit_addtrace(jit_State *J, GCtrace *T)
+{
+  GDBJITctx ctx;
+  GCproto *pt = &gcref(T->startpt)->pt;
+  TraceNo parent = T->ir[REF_BASE].op1;
+  const BCIns *startpc = mref(T->startpc, const BCIns);
+  ctx.T = T;
+  ctx.mcaddr = (uintptr_t)T->mcode;
+  ctx.szmcode = T->szmcode;
+  ctx.spadjp = CFRAME_SIZE_JIT +
+	       (MSize)(parent ? traceref(J, parent)->spadjust : 0);
+  ctx.spadj = CFRAME_SIZE_JIT + T->spadjust;
+  lua_assert(startpc >= proto_bc(pt) && startpc < proto_bc(pt) + pt->sizebc);
+  ctx.lineno = lj_debug_line(pt, proto_bcpos(pt, startpc));
+  ctx.filename = proto_chunknamestr(pt);
+  if (*ctx.filename == '@' || *ctx.filename == '=')
+    ctx.filename++;
+  else
+    ctx.filename = "(string)";
+  gdbjit_buildobj(&ctx);
+  gdbjit_newentry(J->L, &ctx);
+}
+
+/* Delete debug info for trace and notify GDB. */
+void lj_gdbjit_deltrace(jit_State *J, GCtrace *T)
+{
+  GDBJITentryobj *eo = (GDBJITentryobj *)T->gdbjit_entry;
+  if (eo) {
+    if (eo->entry.prev_entry)
+      eo->entry.prev_entry->next_entry = eo->entry.next_entry;
+    else
+      __jit_debug_descriptor.first_entry = eo->entry.next_entry;
+    if (eo->entry.next_entry)
+      eo->entry.next_entry->prev_entry = eo->entry.prev_entry;
+    __jit_debug_descriptor.relevant_entry = &eo->entry;
+    __jit_debug_descriptor.action_flag = GDBJIT_UNREGISTER;
+    __jit_debug_register_code();
+    lj_mem_free(J2G(J), eo, eo->sz);
+  }
+}
+
+#endif
+#endif
diff --git a/lib/luajit/src/lj_gdbjit.h b/lib/luajit/src/lj_gdbjit.h
new file mode 100644
index 00000000..9ae504fc
--- /dev/null
+++ b/lib/luajit/src/lj_gdbjit.h
@@ -0,0 +1,22 @@
+/*
+** Client for the GDB JIT API.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_GDBJIT_H
+#define _LJ_GDBJIT_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT && defined(LUAJIT_USE_GDBJIT)
+
+LJ_FUNC void lj_gdbjit_addtrace(jit_State *J, GCtrace *T);
+LJ_FUNC void lj_gdbjit_deltrace(jit_State *J, GCtrace *T);
+
+#else
+#define lj_gdbjit_addtrace(J, T)	UNUSED(T)
+#define lj_gdbjit_deltrace(J, T)	UNUSED(T)
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_ir.c b/lib/luajit/src/lj_ir.c
new file mode 100644
index 00000000..b2170a10
--- /dev/null
+++ b/lib/luajit/src/lj_ir.c
@@ -0,0 +1,501 @@
+/*
+** SSA IR (Intermediate Representation) emitter.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_ir_c
+#define LUA_CORE
+
+/* For pointers to libc/libm functions. */
+#include <stdio.h>
+#include <math.h>
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_carith.h"
+#endif
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_lib.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+#define fins			(&J->fold.ins)
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)        (lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* -- IR tables ----------------------------------------------------------- */
+
+/* IR instruction modes. */
+LJ_DATADEF const uint8_t lj_ir_mode[IR__MAX+1] = {
+IRDEF(IRMODE)
+  0
+};
+
+/* IR type sizes. */
+LJ_DATADEF const uint8_t lj_ir_type_size[IRT__MAX+1] = {
+#define IRTSIZE(name, size)	size,
+IRTDEF(IRTSIZE)
+#undef IRTSIZE
+  0
+};
+
+/* C call info for CALL* instructions. */
+LJ_DATADEF const CCallInfo lj_ir_callinfo[] = {
+#define IRCALLCI(cond, name, nargs, kind, type, flags) \
+  { (ASMFunction)IRCALLCOND_##cond(name), \
+    (nargs)|(CCI_CALL_##kind)|(IRT_##type<<CCI_OTSHIFT)|(flags) },
+IRCALLDEF(IRCALLCI)
+#undef IRCALLCI
+  { NULL, 0 }
+};
+
+/* -- IR emitter ---------------------------------------------------------- */
+
+/* Grow IR buffer at the top. */
+void LJ_FASTCALL lj_ir_growtop(jit_State *J)
+{
+  IRIns *baseir = J->irbuf + J->irbotlim;
+  MSize szins = J->irtoplim - J->irbotlim;
+  if (szins) {
+    baseir = (IRIns *)lj_mem_realloc(J->L, baseir, szins*sizeof(IRIns),
+				     2*szins*sizeof(IRIns));
+    J->irtoplim = J->irbotlim + 2*szins;
+  } else {
+    baseir = (IRIns *)lj_mem_realloc(J->L, NULL, 0, LJ_MIN_IRSZ*sizeof(IRIns));
+    J->irbotlim = REF_BASE - LJ_MIN_IRSZ/4;
+    J->irtoplim = J->irbotlim + LJ_MIN_IRSZ;
+  }
+  J->cur.ir = J->irbuf = baseir - J->irbotlim;
+}
+
+/* Grow IR buffer at the bottom or shift it up. */
+static void lj_ir_growbot(jit_State *J)
+{
+  IRIns *baseir = J->irbuf + J->irbotlim;
+  MSize szins = J->irtoplim - J->irbotlim;
+  lua_assert(szins != 0);
+  lua_assert(J->cur.nk == J->irbotlim);
+  if (J->cur.nins + (szins >> 1) < J->irtoplim) {
+    /* More than half of the buffer is free on top: shift up by a quarter. */
+    MSize ofs = szins >> 2;
+    memmove(baseir + ofs, baseir, (J->cur.nins - J->irbotlim)*sizeof(IRIns));
+    J->irbotlim -= ofs;
+    J->irtoplim -= ofs;
+    J->cur.ir = J->irbuf = baseir - J->irbotlim;
+  } else {
+    /* Double the buffer size, but split the growth amongst top/bottom. */
+    IRIns *newbase = lj_mem_newt(J->L, 2*szins*sizeof(IRIns), IRIns);
+    MSize ofs = szins >= 256 ? 128 : (szins >> 1);  /* Limit bottom growth. */
+    memcpy(newbase + ofs, baseir, (J->cur.nins - J->irbotlim)*sizeof(IRIns));
+    lj_mem_free(G(J->L), baseir, szins*sizeof(IRIns));
+    J->irbotlim -= ofs;
+    J->irtoplim = J->irbotlim + 2*szins;
+    J->cur.ir = J->irbuf = newbase - J->irbotlim;
+  }
+}
+
+/* Emit IR without any optimizations. */
+TRef LJ_FASTCALL lj_ir_emit(jit_State *J)
+{
+  IRRef ref = lj_ir_nextins(J);
+  IRIns *ir = IR(ref);
+  IROp op = fins->o;
+  ir->prev = J->chain[op];
+  J->chain[op] = (IRRef1)ref;
+  ir->o = op;
+  ir->op1 = fins->op1;
+  ir->op2 = fins->op2;
+  J->guardemit.irt |= fins->t.irt;
+  return TREF(ref, irt_t((ir->t = fins->t)));
+}
+
+/* Emit call to a C function. */
+TRef lj_ir_call(jit_State *J, IRCallID id, ...)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  uint32_t n = CCI_NARGS(ci);
+  TRef tr = TREF_NIL;
+  va_list argp;
+  va_start(argp, id);
+  if ((ci->flags & CCI_L)) n--;
+  if (n > 0)
+    tr = va_arg(argp, IRRef);
+  while (n-- > 1)
+    tr = emitir(IRT(IR_CARG, IRT_NIL), tr, va_arg(argp, IRRef));
+  va_end(argp);
+  if (CCI_OP(ci) == IR_CALLS)
+    J->needsnap = 1;  /* Need snapshot after call with side effect. */
+  return emitir(CCI_OPTYPE(ci), tr, id);
+}
+
+/* -- Interning of constants ---------------------------------------------- */
+
+/*
+** IR instructions for constants are kept between J->cur.nk >= ref < REF_BIAS.
+** They are chained like all other instructions, but grow downwards.
+** The are interned (like strings in the VM) to facilitate reference
+** comparisons. The same constant must get the same reference.
+*/
+
+/* Get ref of next IR constant and optionally grow IR.
+** Note: this may invalidate all IRIns *!
+*/
+static LJ_AINLINE IRRef ir_nextk(jit_State *J)
+{
+  IRRef ref = J->cur.nk;
+  if (LJ_UNLIKELY(ref <= J->irbotlim)) lj_ir_growbot(J);
+  J->cur.nk = --ref;
+  return ref;
+}
+
+/* Intern int32_t constant. */
+TRef LJ_FASTCALL lj_ir_kint(jit_State *J, int32_t k)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  for (ref = J->chain[IR_KINT]; ref; ref = cir[ref].prev)
+    if (cir[ref].i == k)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  ir->i = k;
+  ir->t.irt = IRT_INT;
+  ir->o = IR_KINT;
+  ir->prev = J->chain[IR_KINT];
+  J->chain[IR_KINT] = (IRRef1)ref;
+found:
+  return TREF(ref, IRT_INT);
+}
+
+/* The MRef inside the KNUM/KINT64 IR instructions holds the address of the
+** 64 bit constant. The constants themselves are stored in a chained array
+** and shared across traces.
+**
+** Rationale for choosing this data structure:
+** - The address of the constants is embedded in the generated machine code
+**   and must never move. A resizable array or hash table wouldn't work.
+** - Most apps need very few non-32 bit integer constants (less than a dozen).
+** - Linear search is hard to beat in terms of speed and low complexity.
+*/
+typedef struct K64Array {
+  MRef next;			/* Pointer to next list. */
+  MSize numk;			/* Number of used elements in this array. */
+  TValue k[LJ_MIN_K64SZ];	/* Array of constants. */
+} K64Array;
+
+/* Free all chained arrays. */
+void lj_ir_k64_freeall(jit_State *J)
+{
+  K64Array *k;
+  for (k = mref(J->k64, K64Array); k; ) {
+    K64Array *next = mref(k->next, K64Array);
+    lj_mem_free(J2G(J), k, sizeof(K64Array));
+    k = next;
+  }
+}
+
+/* Find 64 bit constant in chained array or add it. */
+cTValue *lj_ir_k64_find(jit_State *J, uint64_t u64)
+{
+  K64Array *k, *kp = NULL;
+  TValue *ntv;
+  MSize idx;
+  /* Search for the constant in the whole chain of arrays. */
+  for (k = mref(J->k64, K64Array); k; k = mref(k->next, K64Array)) {
+    kp = k;  /* Remember previous element in list. */
+    for (idx = 0; idx < k->numk; idx++) {  /* Search one array. */
+      TValue *tv = &k->k[idx];
+      if (tv->u64 == u64)  /* Needed for +-0/NaN/absmask. */
+	return tv;
+    }
+  }
+  /* Constant was not found, need to add it. */
+  if (!(kp && kp->numk < LJ_MIN_K64SZ)) {  /* Allocate a new array. */
+    K64Array *kn = lj_mem_newt(J->L, sizeof(K64Array), K64Array);
+    setmref(kn->next, NULL);
+    kn->numk = 0;
+    if (kp)
+      setmref(kp->next, kn);  /* Chain to the end of the list. */
+    else
+      setmref(J->k64, kn);  /* Link first array. */
+    kp = kn;
+  }
+  ntv = &kp->k[kp->numk++];  /* Add to current array. */
+  ntv->u64 = u64;
+  return ntv;
+}
+
+/* Intern 64 bit constant, given by its address. */
+TRef lj_ir_k64(jit_State *J, IROp op, cTValue *tv)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  IRType t = op == IR_KNUM ? IRT_NUM : IRT_I64;
+  for (ref = J->chain[op]; ref; ref = cir[ref].prev)
+    if (ir_k64(&cir[ref]) == tv)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  lua_assert(checkptr32(tv));
+  setmref(ir->ptr, tv);
+  ir->t.irt = t;
+  ir->o = op;
+  ir->prev = J->chain[op];
+  J->chain[op] = (IRRef1)ref;
+found:
+  return TREF(ref, t);
+}
+
+/* Intern FP constant, given by its 64 bit pattern. */
+TRef lj_ir_knum_u64(jit_State *J, uint64_t u64)
+{
+  return lj_ir_k64(J, IR_KNUM, lj_ir_k64_find(J, u64));
+}
+
+/* Intern 64 bit integer constant. */
+TRef lj_ir_kint64(jit_State *J, uint64_t u64)
+{
+  return lj_ir_k64(J, IR_KINT64, lj_ir_k64_find(J, u64));
+}
+
+/* Check whether a number is int and return it. -0 is NOT considered an int. */
+static int numistrueint(lua_Number n, int32_t *kp)
+{
+  int32_t k = lj_num2int(n);
+  if (n == (lua_Number)k) {
+    if (kp) *kp = k;
+    if (k == 0) {  /* Special check for -0. */
+      TValue tv;
+      setnumV(&tv, n);
+      if (tv.u32.hi != 0)
+	return 0;
+    }
+    return 1;
+  }
+  return 0;
+}
+
+/* Intern number as int32_t constant if possible, otherwise as FP constant. */
+TRef lj_ir_knumint(jit_State *J, lua_Number n)
+{
+  int32_t k;
+  if (numistrueint(n, &k))
+    return lj_ir_kint(J, k);
+  else
+    return lj_ir_knum(J, n);
+}
+
+/* Intern GC object "constant". */
+TRef lj_ir_kgc(jit_State *J, GCobj *o, IRType t)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  lua_assert(!isdead(J2G(J), o));
+  for (ref = J->chain[IR_KGC]; ref; ref = cir[ref].prev)
+    if (ir_kgc(&cir[ref]) == o)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  /* NOBARRIER: Current trace is a GC root. */
+  setgcref(ir->gcr, o);
+  ir->t.irt = (uint8_t)t;
+  ir->o = IR_KGC;
+  ir->prev = J->chain[IR_KGC];
+  J->chain[IR_KGC] = (IRRef1)ref;
+found:
+  return TREF(ref, t);
+}
+
+/* Intern 32 bit pointer constant. */
+TRef lj_ir_kptr_(jit_State *J, IROp op, void *ptr)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  lua_assert((void *)(intptr_t)i32ptr(ptr) == ptr);
+  for (ref = J->chain[op]; ref; ref = cir[ref].prev)
+    if (mref(cir[ref].ptr, void) == ptr)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  setmref(ir->ptr, ptr);
+  ir->t.irt = IRT_P32;
+  ir->o = op;
+  ir->prev = J->chain[op];
+  J->chain[op] = (IRRef1)ref;
+found:
+  return TREF(ref, IRT_P32);
+}
+
+/* Intern typed NULL constant. */
+TRef lj_ir_knull(jit_State *J, IRType t)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  for (ref = J->chain[IR_KNULL]; ref; ref = cir[ref].prev)
+    if (irt_t(cir[ref].t) == t)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  ir->i = 0;
+  ir->t.irt = (uint8_t)t;
+  ir->o = IR_KNULL;
+  ir->prev = J->chain[IR_KNULL];
+  J->chain[IR_KNULL] = (IRRef1)ref;
+found:
+  return TREF(ref, t);
+}
+
+/* Intern key slot. */
+TRef lj_ir_kslot(jit_State *J, TRef key, IRRef slot)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef2 op12 = IRREF2((IRRef1)key, (IRRef1)slot);
+  IRRef ref;
+  /* Const part is not touched by CSE/DCE, so 0-65535 is ok for IRMlit here. */
+  lua_assert(tref_isk(key) && slot == (IRRef)(IRRef1)slot);
+  for (ref = J->chain[IR_KSLOT]; ref; ref = cir[ref].prev)
+    if (cir[ref].op12 == op12)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  ir->op12 = op12;
+  ir->t.irt = IRT_P32;
+  ir->o = IR_KSLOT;
+  ir->prev = J->chain[IR_KSLOT];
+  J->chain[IR_KSLOT] = (IRRef1)ref;
+found:
+  return TREF(ref, IRT_P32);
+}
+
+/* -- Access to IR constants ---------------------------------------------- */
+
+/* Copy value of IR constant. */
+void lj_ir_kvalue(lua_State *L, TValue *tv, const IRIns *ir)
+{
+  UNUSED(L);
+  lua_assert(ir->o != IR_KSLOT);  /* Common mistake. */
+  switch (ir->o) {
+  case IR_KPRI: setitype(tv, irt_toitype(ir->t)); break;
+  case IR_KINT: setintV(tv, ir->i); break;
+  case IR_KGC: setgcV(L, tv, ir_kgc(ir), irt_toitype(ir->t)); break;
+  case IR_KPTR: case IR_KKPTR: case IR_KNULL:
+    setlightudV(tv, mref(ir->ptr, void));
+    break;
+  case IR_KNUM: setnumV(tv, ir_knum(ir)->n); break;
+#if LJ_HASFFI
+  case IR_KINT64: {
+    GCcdata *cd = lj_cdata_new_(L, CTID_INT64, 8);
+    *(uint64_t *)cdataptr(cd) = ir_kint64(ir)->u64;
+    setcdataV(L, tv, cd);
+    break;
+    }
+#endif
+  default: lua_assert(0); break;
+  }
+}
+
+/* -- Convert IR operand types -------------------------------------------- */
+
+/* Convert from string to number. */
+TRef LJ_FASTCALL lj_ir_tonumber(jit_State *J, TRef tr)
+{
+  if (!tref_isnumber(tr)) {
+    if (tref_isstr(tr))
+      tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    else
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  return tr;
+}
+
+/* Convert from integer or string to number. */
+TRef LJ_FASTCALL lj_ir_tonum(jit_State *J, TRef tr)
+{
+  if (!tref_isnum(tr)) {
+    if (tref_isinteger(tr))
+      tr = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+    else if (tref_isstr(tr))
+      tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    else
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  return tr;
+}
+
+/* Convert from integer or number to string. */
+TRef LJ_FASTCALL lj_ir_tostr(jit_State *J, TRef tr)
+{
+  if (!tref_isstr(tr)) {
+    if (!tref_isnumber(tr))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    tr = emitir(IRT(IR_TOSTR, IRT_STR), tr, 0);
+  }
+  return tr;
+}
+
+/* -- Miscellaneous IR ops ------------------------------------------------ */
+
+/* Evaluate numeric comparison. */
+int lj_ir_numcmp(lua_Number a, lua_Number b, IROp op)
+{
+  switch (op) {
+  case IR_EQ: return (a == b);
+  case IR_NE: return (a != b);
+  case IR_LT: return (a < b);
+  case IR_GE: return (a >= b);
+  case IR_LE: return (a <= b);
+  case IR_GT: return (a > b);
+  case IR_ULT: return !(a >= b);
+  case IR_UGE: return !(a < b);
+  case IR_ULE: return !(a > b);
+  case IR_UGT: return !(a <= b);
+  default: lua_assert(0); return 0;
+  }
+}
+
+/* Evaluate string comparison. */
+int lj_ir_strcmp(GCstr *a, GCstr *b, IROp op)
+{
+  int res = lj_str_cmp(a, b);
+  switch (op) {
+  case IR_LT: return (res < 0);
+  case IR_GE: return (res >= 0);
+  case IR_LE: return (res <= 0);
+  case IR_GT: return (res > 0);
+  default: lua_assert(0); return 0;
+  }
+}
+
+/* Rollback IR to previous state. */
+void lj_ir_rollback(jit_State *J, IRRef ref)
+{
+  IRRef nins = J->cur.nins;
+  while (nins > ref) {
+    IRIns *ir;
+    nins--;
+    ir = IR(nins);
+    J->chain[ir->o] = ir->prev;
+  }
+  J->cur.nins = nins;
+}
+
+#undef IR
+#undef fins
+#undef emitir
+
+#endif
diff --git a/lib/luajit/src/lj_ir.h b/lib/luajit/src/lj_ir.h
new file mode 100644
index 00000000..80763d88
--- /dev/null
+++ b/lib/luajit/src/lj_ir.h
@@ -0,0 +1,551 @@
+/*
+** SSA IR (Intermediate Representation) format.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_IR_H
+#define _LJ_IR_H
+
+#include "lj_obj.h"
+
+/* -- IR instructions ----------------------------------------------------- */
+
+/* IR instruction definition. Order matters, see below. ORDER IR */
+#define IRDEF(_) \
+  /* Guarded assertions. */ \
+  /* Must be properly aligned to flip opposites (^1) and (un)ordered (^4). */ \
+  _(LT,		N , ref, ref) \
+  _(GE,		N , ref, ref) \
+  _(LE,		N , ref, ref) \
+  _(GT,		N , ref, ref) \
+  \
+  _(ULT,	N , ref, ref) \
+  _(UGE,	N , ref, ref) \
+  _(ULE,	N , ref, ref) \
+  _(UGT,	N , ref, ref) \
+  \
+  _(EQ,		C , ref, ref) \
+  _(NE,		C , ref, ref) \
+  \
+  _(ABC,	N , ref, ref) \
+  _(RETF,	S , ref, ref) \
+  \
+  /* Miscellaneous ops. */ \
+  _(NOP,	N , ___, ___) \
+  _(BASE,	N , lit, lit) \
+  _(PVAL,	N , lit, ___) \
+  _(GCSTEP,	S , ___, ___) \
+  _(HIOP,	S , ref, ref) \
+  _(LOOP,	S , ___, ___) \
+  _(USE,	S , ref, ___) \
+  _(PHI,	S , ref, ref) \
+  _(RENAME,	S , ref, lit) \
+  \
+  /* Constants. */ \
+  _(KPRI,	N , ___, ___) \
+  _(KINT,	N , cst, ___) \
+  _(KGC,	N , cst, ___) \
+  _(KPTR,	N , cst, ___) \
+  _(KKPTR,	N , cst, ___) \
+  _(KNULL,	N , cst, ___) \
+  _(KNUM,	N , cst, ___) \
+  _(KINT64,	N , cst, ___) \
+  _(KSLOT,	N , ref, lit) \
+  \
+  /* Bit ops. */ \
+  _(BNOT,	N , ref, ___) \
+  _(BSWAP,	N , ref, ___) \
+  _(BAND,	C , ref, ref) \
+  _(BOR,	C , ref, ref) \
+  _(BXOR,	C , ref, ref) \
+  _(BSHL,	N , ref, ref) \
+  _(BSHR,	N , ref, ref) \
+  _(BSAR,	N , ref, ref) \
+  _(BROL,	N , ref, ref) \
+  _(BROR,	N , ref, ref) \
+  \
+  /* Arithmetic ops. ORDER ARITH */ \
+  _(ADD,	C , ref, ref) \
+  _(SUB,	N , ref, ref) \
+  _(MUL,	C , ref, ref) \
+  _(DIV,	N , ref, ref) \
+  _(MOD,	N , ref, ref) \
+  _(POW,	N , ref, ref) \
+  _(NEG,	N , ref, ref) \
+  \
+  _(ABS,	N , ref, ref) \
+  _(ATAN2,	N , ref, ref) \
+  _(LDEXP,	N , ref, ref) \
+  _(MIN,	C , ref, ref) \
+  _(MAX,	C , ref, ref) \
+  _(FPMATH,	N , ref, lit) \
+  \
+  /* Overflow-checking arithmetic ops. */ \
+  _(ADDOV,	CW, ref, ref) \
+  _(SUBOV,	NW, ref, ref) \
+  _(MULOV,	CW, ref, ref) \
+  \
+  /* Memory ops. A = array, H = hash, U = upvalue, F = field, S = stack. */ \
+  \
+  /* Memory references. */ \
+  _(AREF,	R , ref, ref) \
+  _(HREFK,	R , ref, ref) \
+  _(HREF,	L , ref, ref) \
+  _(NEWREF,	S , ref, ref) \
+  _(UREFO,	LW, ref, lit) \
+  _(UREFC,	LW, ref, lit) \
+  _(FREF,	R , ref, lit) \
+  _(STRREF,	N , ref, ref) \
+  \
+  /* Loads and Stores. These must be in the same order. */ \
+  _(ALOAD,	L , ref, ___) \
+  _(HLOAD,	L , ref, ___) \
+  _(ULOAD,	L , ref, ___) \
+  _(FLOAD,	L , ref, lit) \
+  _(XLOAD,	L , ref, lit) \
+  _(SLOAD,	L , lit, lit) \
+  _(VLOAD,	L , ref, ___) \
+  \
+  _(ASTORE,	S , ref, ref) \
+  _(HSTORE,	S , ref, ref) \
+  _(USTORE,	S , ref, ref) \
+  _(FSTORE,	S , ref, ref) \
+  _(XSTORE,	S , ref, ref) \
+  \
+  /* Allocations. */ \
+  _(SNEW,	N , ref, ref)  /* CSE is ok, not marked as A. */ \
+  _(XSNEW,	A , ref, ref) \
+  _(TNEW,	AW, lit, lit) \
+  _(TDUP,	AW, ref, ___) \
+  _(CNEW,	AW, ref, ref) \
+  _(CNEWI,	NW, ref, ref)  /* CSE is ok, not marked as A. */ \
+  \
+  /* Barriers. */ \
+  _(TBAR,	S , ref, ___) \
+  _(OBAR,	S , ref, ref) \
+  _(XBAR,	S , ___, ___) \
+  \
+  /* Type conversions. */ \
+  _(CONV,	NW, ref, lit) \
+  _(TOBIT,	N , ref, ref) \
+  _(TOSTR,	N , ref, ___) \
+  _(STRTO,	N , ref, ___) \
+  \
+  /* Calls. */ \
+  _(CALLN,	N , ref, lit) \
+  _(CALLL,	L , ref, lit) \
+  _(CALLS,	S , ref, lit) \
+  _(CALLXS,	S , ref, ref) \
+  _(CARG,	N , ref, ref) \
+  \
+  /* End of list. */
+
+/* IR opcodes (max. 256). */
+typedef enum {
+#define IRENUM(name, m, m1, m2)	IR_##name,
+IRDEF(IRENUM)
+#undef IRENUM
+  IR__MAX
+} IROp;
+
+/* Stored opcode. */
+typedef uint8_t IROp1;
+
+LJ_STATIC_ASSERT(((int)IR_EQ^1) == (int)IR_NE);
+LJ_STATIC_ASSERT(((int)IR_LT^1) == (int)IR_GE);
+LJ_STATIC_ASSERT(((int)IR_LE^1) == (int)IR_GT);
+LJ_STATIC_ASSERT(((int)IR_LT^3) == (int)IR_GT);
+LJ_STATIC_ASSERT(((int)IR_LT^4) == (int)IR_ULT);
+
+/* Delta between xLOAD and xSTORE. */
+#define IRDELTA_L2S		((int)IR_ASTORE - (int)IR_ALOAD)
+
+LJ_STATIC_ASSERT((int)IR_HLOAD + IRDELTA_L2S == (int)IR_HSTORE);
+LJ_STATIC_ASSERT((int)IR_ULOAD + IRDELTA_L2S == (int)IR_USTORE);
+LJ_STATIC_ASSERT((int)IR_FLOAD + IRDELTA_L2S == (int)IR_FSTORE);
+LJ_STATIC_ASSERT((int)IR_XLOAD + IRDELTA_L2S == (int)IR_XSTORE);
+
+/* -- Named IR literals --------------------------------------------------- */
+
+/* FPMATH sub-functions. ORDER FPM. */
+#define IRFPMDEF(_) \
+  _(FLOOR) _(CEIL) _(TRUNC)  /* Must be first and in this order. */ \
+  _(SQRT) _(EXP) _(EXP2) _(LOG) _(LOG2) _(LOG10) \
+  _(SIN) _(COS) _(TAN) \
+  _(OTHER)
+
+typedef enum {
+#define FPMENUM(name)		IRFPM_##name,
+IRFPMDEF(FPMENUM)
+#undef FPMENUM
+  IRFPM__MAX
+} IRFPMathOp;
+
+/* FLOAD fields. */
+#define IRFLDEF(_) \
+  _(STR_LEN,	offsetof(GCstr, len)) \
+  _(FUNC_ENV,	offsetof(GCfunc, l.env)) \
+  _(FUNC_PC,	offsetof(GCfunc, l.pc)) \
+  _(TAB_META,	offsetof(GCtab, metatable)) \
+  _(TAB_ARRAY,	offsetof(GCtab, array)) \
+  _(TAB_NODE,	offsetof(GCtab, node)) \
+  _(TAB_ASIZE,	offsetof(GCtab, asize)) \
+  _(TAB_HMASK,	offsetof(GCtab, hmask)) \
+  _(TAB_NOMM,	offsetof(GCtab, nomm)) \
+  _(UDATA_META,	offsetof(GCudata, metatable)) \
+  _(UDATA_UDTYPE, offsetof(GCudata, udtype)) \
+  _(UDATA_FILE,	sizeof(GCudata)) \
+  _(CDATA_CTYPEID, offsetof(GCcdata, ctypeid)) \
+  _(CDATA_PTR,	sizeof(GCcdata)) \
+  _(CDATA_INT, sizeof(GCcdata)) \
+  _(CDATA_INT64, sizeof(GCcdata)) \
+  _(CDATA_INT64_4, sizeof(GCcdata) + 4)
+
+typedef enum {
+#define FLENUM(name, ofs)	IRFL_##name,
+IRFLDEF(FLENUM)
+#undef FLENUM
+  IRFL__MAX
+} IRFieldID;
+
+/* SLOAD mode bits, stored in op2. */
+#define IRSLOAD_PARENT		0x01	/* Coalesce with parent trace. */
+#define IRSLOAD_FRAME		0x02	/* Load hiword of frame. */
+#define IRSLOAD_TYPECHECK	0x04	/* Needs type check. */
+#define IRSLOAD_CONVERT		0x08	/* Number to integer conversion. */
+#define IRSLOAD_READONLY	0x10	/* Read-only, omit slot store. */
+#define IRSLOAD_INHERIT		0x20	/* Inherited by exits/side traces. */
+
+/* XLOAD mode, stored in op2. */
+#define IRXLOAD_READONLY	1	/* Load from read-only data. */
+#define IRXLOAD_VOLATILE	2	/* Load from volatile data. */
+#define IRXLOAD_UNALIGNED	4	/* Unaligned load. */
+
+/* CONV mode, stored in op2. */
+#define IRCONV_SRCMASK		0x001f	/* Source IRType. */
+#define IRCONV_DSTMASK		0x03e0	/* Dest. IRType (also in ir->t). */
+#define IRCONV_DSH		5
+#define IRCONV_NUM_INT		((IRT_NUM<<IRCONV_DSH)|IRT_INT)
+#define IRCONV_INT_NUM		((IRT_INT<<IRCONV_DSH)|IRT_NUM)
+#define IRCONV_TRUNC		0x0400	/* Truncate number to integer. */
+#define IRCONV_SEXT		0x0800	/* Sign-extend integer to integer. */
+#define IRCONV_MODEMASK		0x0fff
+#define IRCONV_CONVMASK		0xf000
+#define IRCONV_CSH		12
+/* Number to integer conversion mode. Ordered by strength of the checks. */
+#define IRCONV_TOBIT  (0<<IRCONV_CSH)	/* None. Cache only: TOBIT conv. */
+#define IRCONV_ANY    (1<<IRCONV_CSH)	/* Any FP number is ok. */
+#define IRCONV_INDEX  (2<<IRCONV_CSH)	/* Check + special backprop rules. */
+#define IRCONV_CHECK  (3<<IRCONV_CSH)	/* Number checked for integerness. */
+
+/* -- IR operands --------------------------------------------------------- */
+
+/* IR operand mode (2 bit). */
+typedef enum {
+  IRMref,		/* IR reference. */
+  IRMlit,		/* 16 bit unsigned literal. */
+  IRMcst,		/* Constant literal: i, gcr or ptr. */
+  IRMnone		/* Unused operand. */
+} IRMode;
+#define IRM___		IRMnone
+
+/* Mode bits: Commutative, {Normal/Ref, Alloc, Load, Store}, Non-weak guard. */
+#define IRM_C			0x10
+
+#define IRM_N			0x00
+#define IRM_R			IRM_N
+#define IRM_A			0x20
+#define IRM_L			0x40
+#define IRM_S			0x60
+
+#define IRM_W			0x80
+
+#define IRM_NW			(IRM_N|IRM_W)
+#define IRM_CW			(IRM_C|IRM_W)
+#define IRM_AW			(IRM_A|IRM_W)
+#define IRM_LW			(IRM_L|IRM_W)
+
+#define irm_op1(m)		((IRMode)((m)&3))
+#define irm_op2(m)		((IRMode)(((m)>>2)&3))
+#define irm_iscomm(m)		((m) & IRM_C)
+#define irm_kind(m)		((m) & IRM_S)
+
+#define IRMODE(name, m, m1, m2)	(((IRM##m1)|((IRM##m2)<<2)|(IRM_##m))^IRM_W),
+
+LJ_DATA const uint8_t lj_ir_mode[IR__MAX+1];
+
+/* -- IR instruction types ------------------------------------------------ */
+
+/* Map of itypes to non-negative numbers. ORDER LJ_T.
+** LJ_TUPVAL/LJ_TTRACE never appear in a TValue. Use these itypes for
+** IRT_P32 and IRT_P64, which never escape the IR.
+** The various integers are only used in the IR and can only escape to
+** a TValue after implicit or explicit conversion. Their types must be
+** contiguous and next to IRT_NUM (see the typerange macros below).
+*/
+#define IRTDEF(_) \
+  _(NIL, 4) _(FALSE, 4) _(TRUE, 4) _(LIGHTUD, LJ_64 ? 8 : 4) _(STR, 4) \
+  _(P32, 4) _(THREAD, 4) _(PROTO, 4) _(FUNC, 4) _(P64, 8) _(CDATA, 4) \
+  _(TAB, 4) _(UDATA, 4) \
+  _(FLOAT, 4) _(NUM, 8) _(I8, 1) _(U8, 1) _(I16, 2) _(U16, 2) \
+  _(INT, 4) _(U32, 4) _(I64, 8) _(U64, 8) \
+  _(SOFTFP, 4)  /* There is room for 9 more types. */
+
+/* IR result type and flags (8 bit). */
+typedef enum {
+#define IRTENUM(name, size)	IRT_##name,
+IRTDEF(IRTENUM)
+#undef IRTENUM
+  IRT__MAX,
+
+  /* Native pointer type and the corresponding integer type. */
+  IRT_PTR = LJ_64 ? IRT_P64 : IRT_P32,
+  IRT_INTP = LJ_64 ? IRT_I64 : IRT_INT,
+  IRT_UINTP = LJ_64 ? IRT_U64 : IRT_U32,
+
+  /* Additional flags. */
+  IRT_MARK = 0x20,	/* Marker for misc. purposes. */
+  IRT_ISPHI = 0x40,	/* Instruction is left or right PHI operand. */
+  IRT_GUARD = 0x80,	/* Instruction is a guard. */
+
+  /* Masks. */
+  IRT_TYPE = 0x1f,
+  IRT_T = 0xff
+} IRType;
+
+#define irtype_ispri(irt)	((uint32_t)(irt) <= IRT_TRUE)
+
+/* Stored IRType. */
+typedef struct IRType1 { uint8_t irt; } IRType1;
+
+#define IRT(o, t)		((uint32_t)(((o)<<8) | (t)))
+#define IRTI(o)			(IRT((o), IRT_INT))
+#define IRTN(o)			(IRT((o), IRT_NUM))
+#define IRTG(o, t)		(IRT((o), IRT_GUARD|(t)))
+#define IRTGI(o)		(IRT((o), IRT_GUARD|IRT_INT))
+
+#define irt_t(t)		((IRType)(t).irt)
+#define irt_type(t)		((IRType)((t).irt & IRT_TYPE))
+#define irt_sametype(t1, t2)	((((t1).irt ^ (t2).irt) & IRT_TYPE) == 0)
+#define irt_typerange(t, first, last) \
+  ((uint32_t)((t).irt & IRT_TYPE) - (uint32_t)(first) <= (uint32_t)(last-first))
+
+#define irt_isnil(t)		(irt_type(t) == IRT_NIL)
+#define irt_ispri(t)		((uint32_t)irt_type(t) <= IRT_TRUE)
+#define irt_islightud(t)	(irt_type(t) == IRT_LIGHTUD)
+#define irt_isstr(t)		(irt_type(t) == IRT_STR)
+#define irt_istab(t)		(irt_type(t) == IRT_TAB)
+#define irt_iscdata(t)		(irt_type(t) == IRT_CDATA)
+#define irt_isfloat(t)		(irt_type(t) == IRT_FLOAT)
+#define irt_isnum(t)		(irt_type(t) == IRT_NUM)
+#define irt_isint(t)		(irt_type(t) == IRT_INT)
+#define irt_isi8(t)		(irt_type(t) == IRT_I8)
+#define irt_isu8(t)		(irt_type(t) == IRT_U8)
+#define irt_isi16(t)		(irt_type(t) == IRT_I16)
+#define irt_isu16(t)		(irt_type(t) == IRT_U16)
+#define irt_isu32(t)		(irt_type(t) == IRT_U32)
+#define irt_isi64(t)		(irt_type(t) == IRT_I64)
+#define irt_isu64(t)		(irt_type(t) == IRT_U64)
+
+#define irt_isfp(t)		(irt_isnum(t) || irt_isfloat(t))
+#define irt_isinteger(t)	(irt_typerange((t), IRT_I8, IRT_INT))
+#define irt_isgcv(t)		(irt_typerange((t), IRT_STR, IRT_UDATA))
+#define irt_isaddr(t)		(irt_typerange((t), IRT_LIGHTUD, IRT_UDATA))
+#define irt_isint64(t)		(irt_typerange((t), IRT_I64, IRT_U64))
+
+#if LJ_64
+#define IRT_IS64 \
+  ((1u<<IRT_NUM)|(1u<<IRT_I64)|(1u<<IRT_U64)|(1u<<IRT_P64)|(1u<<IRT_LIGHTUD))
+#else
+#define IRT_IS64 \
+  ((1u<<IRT_NUM)|(1u<<IRT_I64)|(1u<<IRT_U64))
+#endif
+
+#define irt_is64(t)		((IRT_IS64 >> irt_type(t)) & 1)
+#define irt_is64orfp(t)		(((IRT_IS64|(1u<<IRT_FLOAT))>>irt_type(t)) & 1)
+
+#define irt_size(t)		(lj_ir_type_size[irt_t((t))])
+
+LJ_DATA const uint8_t lj_ir_type_size[];
+
+static LJ_AINLINE IRType itype2irt(const TValue *tv)
+{
+  if (tvisint(tv))
+    return IRT_INT;
+  else if (tvisnum(tv))
+    return IRT_NUM;
+#if LJ_64
+  else if (tvislightud(tv))
+    return IRT_LIGHTUD;
+#endif
+  else
+    return (IRType)~itype(tv);
+}
+
+static LJ_AINLINE uint32_t irt_toitype_(IRType t)
+{
+  lua_assert(!LJ_64 || t != IRT_LIGHTUD);
+  if (LJ_DUALNUM && t > IRT_NUM) {
+    return LJ_TISNUM;
+  } else {
+    lua_assert(t <= IRT_NUM);
+    return ~(uint32_t)t;
+  }
+}
+
+#define irt_toitype(t)		irt_toitype_(irt_type((t)))
+
+#define irt_isguard(t)		((t).irt & IRT_GUARD)
+#define irt_ismarked(t)		((t).irt & IRT_MARK)
+#define irt_setmark(t)		((t).irt |= IRT_MARK)
+#define irt_clearmark(t)	((t).irt &= ~IRT_MARK)
+#define irt_isphi(t)		((t).irt & IRT_ISPHI)
+#define irt_setphi(t)		((t).irt |= IRT_ISPHI)
+#define irt_clearphi(t)		((t).irt &= ~IRT_ISPHI)
+
+/* Stored combined IR opcode and type. */
+typedef uint16_t IROpT;
+
+/* -- IR references ------------------------------------------------------- */
+
+/* IR references. */
+typedef uint16_t IRRef1;	/* One stored reference. */
+typedef uint32_t IRRef2;	/* Two stored references. */
+typedef uint32_t IRRef;		/* Used to pass around references. */
+
+/* Fixed references. */
+enum {
+  REF_BIAS =	0x8000,
+  REF_TRUE =	REF_BIAS-3,
+  REF_FALSE =	REF_BIAS-2,
+  REF_NIL =	REF_BIAS-1,	/* \--- Constants grow downwards. */
+  REF_BASE =	REF_BIAS,	/* /--- IR grows upwards. */
+  REF_FIRST =	REF_BIAS+1,
+  REF_DROP =	0xffff
+};
+
+/* Note: IRMlit operands must be < REF_BIAS, too!
+** This allows for fast and uniform manipulation of all operands
+** without looking up the operand mode in lj_ir_mode:
+** - CSE calculates the maximum reference of two operands.
+**   This must work with mixed reference/literal operands, too.
+** - DCE marking only checks for operand >= REF_BIAS.
+** - LOOP needs to substitute reference operands.
+**   Constant references and literals must not be modified.
+*/
+
+#define IRREF2(lo, hi)		((IRRef2)(lo) | ((IRRef2)(hi) << 16))
+
+#define irref_isk(ref)		((ref) < REF_BIAS)
+
+/* Tagged IR references (32 bit).
+**
+** +-------+-------+---------------+
+** |  irt  | flags |      ref      |
+** +-------+-------+---------------+
+**
+** The tag holds a copy of the IRType and speeds up IR type checks.
+*/
+typedef uint32_t TRef;
+
+#define TREF_REFMASK		0x0000ffff
+#define TREF_FRAME		0x00010000
+#define TREF_CONT		0x00020000
+
+#define TREF(ref, t)		((TRef)((ref) + ((t)<<24)))
+
+#define tref_ref(tr)		((IRRef1)(tr))
+#define tref_t(tr)		((IRType)((tr)>>24))
+#define tref_type(tr)		((IRType)(((tr)>>24) & IRT_TYPE))
+#define tref_typerange(tr, first, last) \
+  ((((tr)>>24) & IRT_TYPE) - (TRef)(first) <= (TRef)(last-first))
+
+#define tref_istype(tr, t)	(((tr) & (IRT_TYPE<<24)) == ((t)<<24))
+#define tref_isnil(tr)		(tref_istype((tr), IRT_NIL))
+#define tref_isfalse(tr)	(tref_istype((tr), IRT_FALSE))
+#define tref_istrue(tr)		(tref_istype((tr), IRT_TRUE))
+#define tref_isstr(tr)		(tref_istype((tr), IRT_STR))
+#define tref_isfunc(tr)		(tref_istype((tr), IRT_FUNC))
+#define tref_iscdata(tr)	(tref_istype((tr), IRT_CDATA))
+#define tref_istab(tr)		(tref_istype((tr), IRT_TAB))
+#define tref_isudata(tr)	(tref_istype((tr), IRT_UDATA))
+#define tref_isnum(tr)		(tref_istype((tr), IRT_NUM))
+#define tref_isint(tr)		(tref_istype((tr), IRT_INT))
+
+#define tref_isbool(tr)		(tref_typerange((tr), IRT_FALSE, IRT_TRUE))
+#define tref_ispri(tr)		(tref_typerange((tr), IRT_NIL, IRT_TRUE))
+#define tref_istruecond(tr)	(!tref_typerange((tr), IRT_NIL, IRT_FALSE))
+#define tref_isinteger(tr)	(tref_typerange((tr), IRT_I8, IRT_INT))
+#define tref_isnumber(tr)	(tref_typerange((tr), IRT_NUM, IRT_INT))
+#define tref_isnumber_str(tr)	(tref_isnumber((tr)) || tref_isstr((tr)))
+#define tref_isgcv(tr)		(tref_typerange((tr), IRT_STR, IRT_UDATA))
+
+#define tref_isk(tr)		(irref_isk(tref_ref((tr))))
+#define tref_isk2(tr1, tr2)	(irref_isk(tref_ref((tr1) | (tr2))))
+
+#define TREF_PRI(t)		(TREF(REF_NIL-(t), (t)))
+#define TREF_NIL		(TREF_PRI(IRT_NIL))
+#define TREF_FALSE		(TREF_PRI(IRT_FALSE))
+#define TREF_TRUE		(TREF_PRI(IRT_TRUE))
+
+/* -- IR format ----------------------------------------------------------- */
+
+/* IR instruction format (64 bit).
+**
+**    16      16     8   8   8   8
+** +-------+-------+---+---+---+---+
+** |  op1  |  op2  | t | o | r | s |
+** +-------+-------+---+---+---+---+
+** |  op12/i/gco   |   ot  | prev  | (alternative fields in union)
+** +---------------+-------+-------+
+**        32           16      16
+**
+** prev is only valid prior to register allocation and then reused for r + s.
+*/
+
+typedef union IRIns {
+  struct {
+    LJ_ENDIAN_LOHI(
+      IRRef1 op1;	/* IR operand 1. */
+    , IRRef1 op2;	/* IR operand 2. */
+    )
+    IROpT ot;		/* IR opcode and type (overlaps t and o). */
+    IRRef1 prev;	/* Previous ins in same chain (overlaps r and s). */
+  };
+  struct {
+    IRRef2 op12;	/* IR operand 1 and 2 (overlaps op1 and op2). */
+    LJ_ENDIAN_LOHI(
+      IRType1 t;	/* IR type. */
+    , IROp1 o;		/* IR opcode. */
+    )
+    LJ_ENDIAN_LOHI(
+      uint8_t r;	/* Register allocation (overlaps prev). */
+    , uint8_t s;	/* Spill slot allocation (overlaps prev). */
+    )
+  };
+  int32_t i;		/* 32 bit signed integer literal (overlaps op12). */
+  GCRef gcr;		/* GCobj constant (overlaps op12). */
+  MRef ptr;		/* Pointer constant (overlaps op12). */
+} IRIns;
+
+#define ir_kgc(ir)	check_exp((ir)->o == IR_KGC, gcref((ir)->gcr))
+#define ir_kstr(ir)	(gco2str(ir_kgc((ir))))
+#define ir_ktab(ir)	(gco2tab(ir_kgc((ir))))
+#define ir_kfunc(ir)	(gco2func(ir_kgc((ir))))
+#define ir_kcdata(ir)	(gco2cd(ir_kgc((ir))))
+#define ir_knum(ir)	check_exp((ir)->o == IR_KNUM, mref((ir)->ptr, cTValue))
+#define ir_kint64(ir)	check_exp((ir)->o == IR_KINT64, mref((ir)->ptr,cTValue))
+#define ir_k64(ir) \
+  check_exp((ir)->o == IR_KNUM || (ir)->o == IR_KINT64, mref((ir)->ptr,cTValue))
+#define ir_kptr(ir) \
+  check_exp((ir)->o == IR_KPTR || (ir)->o == IR_KKPTR, mref((ir)->ptr, void))
+
+/* A store or any other op with a non-weak guard has a side-effect. */
+static LJ_AINLINE int ir_sideeff(IRIns *ir)
+{
+  return (((ir->t.irt | ~IRT_GUARD) & lj_ir_mode[ir->o]) >= IRM_S);
+}
+
+LJ_STATIC_ASSERT((int)IRT_GUARD == (int)IRM_W);
+
+#endif
diff --git a/lib/luajit/src/lj_ircall.h b/lib/luajit/src/lj_ircall.h
new file mode 100644
index 00000000..af30ba8f
--- /dev/null
+++ b/lib/luajit/src/lj_ircall.h
@@ -0,0 +1,271 @@
+/*
+** IR CALL* instruction definitions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_IRCALL_H
+#define _LJ_IRCALL_H
+
+#include "lj_obj.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+
+/* C call info for CALL* instructions. */
+typedef struct CCallInfo {
+  ASMFunction func;		/* Function pointer. */
+  uint32_t flags;		/* Number of arguments and flags. */
+} CCallInfo;
+
+#define CCI_NARGS(ci)		((ci)->flags & 0xff)	/* Extract # of args. */
+#define CCI_NARGS_MAX		32			/* Max. # of args. */
+
+#define CCI_OTSHIFT		16
+#define CCI_OPTYPE(ci)		((ci)->flags >> CCI_OTSHIFT)  /* Get op/type. */
+#define CCI_OPSHIFT		24
+#define CCI_OP(ci)		((ci)->flags >> CCI_OPSHIFT)  /* Get op. */
+
+#define CCI_CALL_N		(IR_CALLN << CCI_OPSHIFT)
+#define CCI_CALL_L		(IR_CALLL << CCI_OPSHIFT)
+#define CCI_CALL_S		(IR_CALLS << CCI_OPSHIFT)
+#define CCI_CALL_FN		(CCI_CALL_N|CCI_CC_FASTCALL)
+#define CCI_CALL_FL		(CCI_CALL_L|CCI_CC_FASTCALL)
+#define CCI_CALL_FS		(CCI_CALL_S|CCI_CC_FASTCALL)
+
+/* C call info flags. */
+#define CCI_L			0x0100	/* Implicit L arg. */
+#define CCI_CASTU64		0x0200	/* Cast u64 result to number. */
+#define CCI_NOFPRCLOBBER	0x0400	/* Does not clobber any FPRs. */
+#define CCI_VARARG		0x0800	/* Vararg function. */
+
+#define CCI_CC_MASK		0x3000	/* Calling convention mask. */
+#define CCI_CC_SHIFT		12
+/* ORDER CC */
+#define CCI_CC_CDECL		0x0000	/* Default cdecl calling convention. */
+#define CCI_CC_THISCALL		0x1000	/* Thiscall calling convention. */
+#define CCI_CC_FASTCALL		0x2000	/* Fastcall calling convention. */
+#define CCI_CC_STDCALL		0x3000	/* Stdcall calling convention. */
+
+/* Helpers for conditional function definitions. */
+#define IRCALLCOND_ANY(x)		x
+
+#if LJ_TARGET_X86ORX64
+#define IRCALLCOND_FPMATH(x)		NULL
+#else
+#define IRCALLCOND_FPMATH(x)		x
+#endif
+
+#if LJ_SOFTFP
+#define IRCALLCOND_SOFTFP(x)		x
+#if LJ_HASFFI
+#define IRCALLCOND_SOFTFP_FFI(x)	x
+#else
+#define IRCALLCOND_SOFTFP_FFI(x)	NULL
+#endif
+#else
+#define IRCALLCOND_SOFTFP(x)		NULL
+#define IRCALLCOND_SOFTFP_FFI(x)	NULL
+#endif
+
+#define LJ_NEED_FP64	(LJ_TARGET_ARM || LJ_TARGET_PPC || LJ_TARGET_MIPS)
+
+#if LJ_HASFFI && (LJ_SOFTFP || LJ_NEED_FP64)
+#define IRCALLCOND_FP64_FFI(x)		x
+#else
+#define IRCALLCOND_FP64_FFI(x)		NULL
+#endif
+
+#if LJ_HASFFI
+#define IRCALLCOND_FFI(x)		x
+#if LJ_32
+#define IRCALLCOND_FFI32(x)		x
+#else
+#define IRCALLCOND_FFI32(x)		NULL
+#endif
+#else
+#define IRCALLCOND_FFI(x)		NULL
+#define IRCALLCOND_FFI32(x)		NULL
+#endif
+
+#if LJ_SOFTFP
+#define ARG1_FP		2	/* Treat as 2 32 bit arguments. */
+#else
+#define ARG1_FP		1
+#endif
+
+#if LJ_32
+#define ARG2_64		4	/* Treat as 4 32 bit arguments. */
+#else
+#define ARG2_64		2
+#endif
+
+/* Function definitions for CALL* instructions. */
+#define IRCALLDEF(_) \
+  _(ANY,	lj_str_cmp,		2,  FN, INT, CCI_NOFPRCLOBBER) \
+  _(ANY,	lj_str_new,		3,   S, STR, CCI_L) \
+  _(ANY,	lj_strscan_num,		2,  FN, INT, 0) \
+  _(ANY,	lj_str_fromint,		2,  FN, STR, CCI_L) \
+  _(ANY,	lj_str_fromnum,		2,  FN, STR, CCI_L) \
+  _(ANY,	lj_tab_new1,		2,  FS, TAB, CCI_L) \
+  _(ANY,	lj_tab_dup,		2,  FS, TAB, CCI_L) \
+  _(ANY,	lj_tab_newkey,		3,   S, P32, CCI_L) \
+  _(ANY,	lj_tab_len,		1,  FL, INT, 0) \
+  _(ANY,	lj_gc_step_jit,		2,  FS, NIL, CCI_L) \
+  _(ANY,	lj_gc_barrieruv,	2,  FS, NIL, 0) \
+  _(ANY,	lj_mem_newgco,		2,  FS, P32, CCI_L) \
+  _(ANY,	lj_math_random_step, 1, FS, NUM, CCI_CASTU64|CCI_NOFPRCLOBBER) \
+  _(ANY,	lj_vm_modi,		2,  FN, INT, 0) \
+  _(ANY,	sinh,			ARG1_FP,  N, NUM, 0) \
+  _(ANY,	cosh,			ARG1_FP,  N, NUM, 0) \
+  _(ANY,	tanh,			ARG1_FP,  N, NUM, 0) \
+  _(ANY,	fputc,			2,  S, INT, 0) \
+  _(ANY,	fwrite,			4,  S, INT, 0) \
+  _(ANY,	fflush,			1,  S, INT, 0) \
+  /* ORDER FPM */ \
+  _(FPMATH,	lj_vm_floor,		ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	lj_vm_ceil,		ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	lj_vm_trunc,		ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	sqrt,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	exp,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	lj_vm_exp2,		ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	log,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	lj_vm_log2,		ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	log10,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	sin,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	cos,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	tan,			ARG1_FP,   N, NUM, 0) \
+  _(FPMATH,	lj_vm_powi,		ARG1_FP+1, N, NUM, 0) \
+  _(FPMATH,	pow,			ARG1_FP*2, N, NUM, 0) \
+  _(FPMATH,	atan2,			ARG1_FP*2, N, NUM, 0) \
+  _(FPMATH,	ldexp,			ARG1_FP+1, N, NUM, 0) \
+  _(SOFTFP,	lj_vm_tobit,		2,   N, INT, 0) \
+  _(SOFTFP,	softfp_add,		4,   N, NUM, 0) \
+  _(SOFTFP,	softfp_sub,		4,   N, NUM, 0) \
+  _(SOFTFP,	softfp_mul,		4,   N, NUM, 0) \
+  _(SOFTFP,	softfp_div,		4,   N, NUM, 0) \
+  _(SOFTFP,	softfp_cmp,		4,   N, NIL, 0) \
+  _(SOFTFP,	softfp_i2d,		1,   N, NUM, 0) \
+  _(SOFTFP,	softfp_d2i,		2,   N, INT, 0) \
+  _(SOFTFP_FFI,	softfp_ui2d,		1,   N, NUM, 0) \
+  _(SOFTFP_FFI,	softfp_f2d,		1,   N, NUM, 0) \
+  _(SOFTFP_FFI,	softfp_d2ui,		2,   N, INT, 0) \
+  _(SOFTFP_FFI,	softfp_d2f,		2,   N, FLOAT, 0) \
+  _(SOFTFP_FFI,	softfp_i2f,		1,   N, FLOAT, 0) \
+  _(SOFTFP_FFI,	softfp_ui2f,		1,   N, FLOAT, 0) \
+  _(SOFTFP_FFI,	softfp_f2i,		1,   N, INT, 0) \
+  _(SOFTFP_FFI,	softfp_f2ui,		1,   N, INT, 0) \
+  _(FP64_FFI,	fp64_l2d,		2,   N, NUM, 0) \
+  _(FP64_FFI,	fp64_ul2d,		2,   N, NUM, 0) \
+  _(FP64_FFI,	fp64_l2f,		2,   N, FLOAT, 0) \
+  _(FP64_FFI,	fp64_ul2f,		2,   N, FLOAT, 0) \
+  _(FP64_FFI,	fp64_d2l,		ARG1_FP,   N, I64, 0) \
+  _(FP64_FFI,	fp64_d2ul,		ARG1_FP,   N, U64, 0) \
+  _(FP64_FFI,	fp64_f2l,		1,   N, I64, 0) \
+  _(FP64_FFI,	fp64_f2ul,		1,   N, U64, 0) \
+  _(FFI,	lj_carith_divi64,	ARG2_64,   N, I64, CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_divu64,	ARG2_64,   N, U64, CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_modi64,	ARG2_64,   N, I64, CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_modu64,	ARG2_64,   N, U64, CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_powi64,	ARG2_64,   N, I64, CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_powu64,	ARG2_64,   N, U64, CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_cdata_setfin,	2,        FN, P32, CCI_L) \
+  _(FFI,	strlen,			1,         L, INTP, 0) \
+  _(FFI,	memcpy,			3,         S, PTR, 0) \
+  _(FFI,	memset,			3,         S, PTR, 0) \
+  _(FFI,	lj_vm_errno,		0,         S, INT, CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_mul64,	ARG2_64,   N, I64, CCI_NOFPRCLOBBER)
+  \
+  /* End of list. */
+
+typedef enum {
+#define IRCALLENUM(cond, name, nargs, kind, type, flags)	IRCALL_##name,
+IRCALLDEF(IRCALLENUM)
+#undef IRCALLENUM
+  IRCALL__MAX
+} IRCallID;
+
+LJ_FUNC TRef lj_ir_call(jit_State *J, IRCallID id, ...);
+
+LJ_DATA const CCallInfo lj_ir_callinfo[IRCALL__MAX+1];
+
+/* Soft-float declarations. */
+#if LJ_SOFTFP
+#if LJ_TARGET_ARM
+#define softfp_add __aeabi_dadd
+#define softfp_sub __aeabi_dsub
+#define softfp_mul __aeabi_dmul
+#define softfp_div __aeabi_ddiv
+#define softfp_cmp __aeabi_cdcmple
+#define softfp_i2d __aeabi_i2d
+#define softfp_d2i __aeabi_d2iz
+#define softfp_ui2d __aeabi_ui2d
+#define softfp_f2d __aeabi_f2d
+#define softfp_d2ui __aeabi_d2uiz
+#define softfp_d2f __aeabi_d2f
+#define softfp_i2f __aeabi_i2f
+#define softfp_ui2f __aeabi_ui2f
+#define softfp_f2i __aeabi_f2iz
+#define softfp_f2ui __aeabi_f2uiz
+#define fp64_l2d __aeabi_l2d
+#define fp64_ul2d __aeabi_ul2d
+#define fp64_l2f __aeabi_l2f
+#define fp64_ul2f __aeabi_ul2f
+#if LJ_TARGET_IOS
+#define fp64_d2l __fixdfdi
+#define fp64_d2ul __fixunsdfdi
+#define fp64_f2l __fixsfdi
+#define fp64_f2ul __fixunssfdi
+#else
+#define fp64_d2l __aeabi_d2lz
+#define fp64_d2ul __aeabi_d2ulz
+#define fp64_f2l __aeabi_f2lz
+#define fp64_f2ul __aeabi_f2ulz
+#endif
+#else
+#error "Missing soft-float definitions for target architecture"
+#endif
+extern double softfp_add(double a, double b);
+extern double softfp_sub(double a, double b);
+extern double softfp_mul(double a, double b);
+extern double softfp_div(double a, double b);
+extern void softfp_cmp(double a, double b);
+extern double softfp_i2d(int32_t a);
+extern int32_t softfp_d2i(double a);
+#if LJ_HASFFI
+extern double softfp_ui2d(uint32_t a);
+extern double softfp_f2d(float a);
+extern uint32_t softfp_d2ui(double a);
+extern float softfp_d2f(double a);
+extern float softfp_i2f(int32_t a);
+extern float softfp_ui2f(uint32_t a);
+extern int32_t softfp_f2i(float a);
+extern uint32_t softfp_f2ui(float a);
+#endif
+#endif
+
+#if LJ_HASFFI && LJ_NEED_FP64 && !(LJ_TARGET_ARM && LJ_SOFTFP)
+#ifdef __GNUC__
+#define fp64_l2d __floatdidf
+#define fp64_ul2d __floatundidf
+#define fp64_l2f __floatdisf
+#define fp64_ul2f __floatundisf
+#define fp64_d2l __fixdfdi
+#define fp64_d2ul __fixunsdfdi
+#define fp64_f2l __fixsfdi
+#define fp64_f2ul __fixunssfdi
+#else
+#error "Missing fp64 helper definitions for this compiler"
+#endif
+#endif
+
+#if LJ_HASFFI && (LJ_SOFTFP || LJ_NEED_FP64)
+extern double fp64_l2d(int64_t a);
+extern double fp64_ul2d(uint64_t a);
+extern float fp64_l2f(int64_t a);
+extern float fp64_ul2f(uint64_t a);
+extern int64_t fp64_d2l(double a);
+extern uint64_t fp64_d2ul(double a);
+extern int64_t fp64_f2l(float a);
+extern uint64_t fp64_f2ul(float a);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_iropt.h b/lib/luajit/src/lj_iropt.h
new file mode 100644
index 00000000..e45ae2b7
--- /dev/null
+++ b/lib/luajit/src/lj_iropt.h
@@ -0,0 +1,161 @@
+/*
+** Common header for IR emitter and optimizations.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_IROPT_H
+#define _LJ_IROPT_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+/* IR emitter. */
+LJ_FUNC void LJ_FASTCALL lj_ir_growtop(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_ir_emit(jit_State *J);
+
+/* Save current IR in J->fold.ins, but do not emit it (yet). */
+static LJ_AINLINE void lj_ir_set_(jit_State *J, uint16_t ot, IRRef1 a, IRRef1 b)
+{
+  J->fold.ins.ot = ot; J->fold.ins.op1 = a; J->fold.ins.op2 = b;
+}
+
+#define lj_ir_set(J, ot, a, b) \
+  lj_ir_set_(J, (uint16_t)(ot), (IRRef1)(a), (IRRef1)(b))
+
+/* Get ref of next IR instruction and optionally grow IR.
+** Note: this may invalidate all IRIns*!
+*/
+static LJ_AINLINE IRRef lj_ir_nextins(jit_State *J)
+{
+  IRRef ref = J->cur.nins;
+  if (LJ_UNLIKELY(ref >= J->irtoplim)) lj_ir_growtop(J);
+  J->cur.nins = ref + 1;
+  return ref;
+}
+
+/* Interning of constants. */
+LJ_FUNC TRef LJ_FASTCALL lj_ir_kint(jit_State *J, int32_t k);
+LJ_FUNC void lj_ir_k64_freeall(jit_State *J);
+LJ_FUNC TRef lj_ir_k64(jit_State *J, IROp op, cTValue *tv);
+LJ_FUNC cTValue *lj_ir_k64_find(jit_State *J, uint64_t u64);
+LJ_FUNC TRef lj_ir_knum_u64(jit_State *J, uint64_t u64);
+LJ_FUNC TRef lj_ir_knumint(jit_State *J, lua_Number n);
+LJ_FUNC TRef lj_ir_kint64(jit_State *J, uint64_t u64);
+LJ_FUNC TRef lj_ir_kgc(jit_State *J, GCobj *o, IRType t);
+LJ_FUNC TRef lj_ir_kptr_(jit_State *J, IROp op, void *ptr);
+LJ_FUNC TRef lj_ir_knull(jit_State *J, IRType t);
+LJ_FUNC TRef lj_ir_kslot(jit_State *J, TRef key, IRRef slot);
+
+#if LJ_64
+#define lj_ir_kintp(J, k)	lj_ir_kint64(J, (uint64_t)(k))
+#else
+#define lj_ir_kintp(J, k)	lj_ir_kint(J, (int32_t)(k))
+#endif
+
+static LJ_AINLINE TRef lj_ir_knum(jit_State *J, lua_Number n)
+{
+  TValue tv;
+  tv.n = n;
+  return lj_ir_knum_u64(J, tv.u64);
+}
+
+#define lj_ir_kstr(J, str)	lj_ir_kgc(J, obj2gco((str)), IRT_STR)
+#define lj_ir_ktab(J, tab)	lj_ir_kgc(J, obj2gco((tab)), IRT_TAB)
+#define lj_ir_kfunc(J, func)	lj_ir_kgc(J, obj2gco((func)), IRT_FUNC)
+#define lj_ir_kptr(J, ptr)	lj_ir_kptr_(J, IR_KPTR, (ptr))
+#define lj_ir_kkptr(J, ptr)	lj_ir_kptr_(J, IR_KKPTR, (ptr))
+
+/* Special FP constants. */
+#define lj_ir_knum_zero(J)	lj_ir_knum_u64(J, U64x(00000000,00000000))
+#define lj_ir_knum_one(J)	lj_ir_knum_u64(J, U64x(3ff00000,00000000))
+#define lj_ir_knum_tobit(J)	lj_ir_knum_u64(J, U64x(43380000,00000000))
+
+/* Special 128 bit SIMD constants. */
+#define lj_ir_knum_abs(J)	lj_ir_k64(J, IR_KNUM, LJ_KSIMD(J, LJ_KSIMD_ABS))
+#define lj_ir_knum_neg(J)	lj_ir_k64(J, IR_KNUM, LJ_KSIMD(J, LJ_KSIMD_NEG))
+
+/* Access to constants. */
+LJ_FUNC void lj_ir_kvalue(lua_State *L, TValue *tv, const IRIns *ir);
+
+/* Convert IR operand types. */
+LJ_FUNC TRef LJ_FASTCALL lj_ir_tonumber(jit_State *J, TRef tr);
+LJ_FUNC TRef LJ_FASTCALL lj_ir_tonum(jit_State *J, TRef tr);
+LJ_FUNC TRef LJ_FASTCALL lj_ir_tostr(jit_State *J, TRef tr);
+
+/* Miscellaneous IR ops. */
+LJ_FUNC int lj_ir_numcmp(lua_Number a, lua_Number b, IROp op);
+LJ_FUNC int lj_ir_strcmp(GCstr *a, GCstr *b, IROp op);
+LJ_FUNC void lj_ir_rollback(jit_State *J, IRRef ref);
+
+/* Emit IR instructions with on-the-fly optimizations. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fold(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_cse(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_cselim(jit_State *J, IRRef lim);
+
+/* Special return values for the fold functions. */
+enum {
+  NEXTFOLD,		/* Couldn't fold, pass on. */
+  RETRYFOLD,		/* Retry fold with modified fins. */
+  KINTFOLD,		/* Return ref for int constant in fins->i. */
+  FAILFOLD,		/* Guard would always fail. */
+  DROPFOLD,		/* Guard eliminated. */
+  MAX_FOLD
+};
+
+#define INTFOLD(k)	((J->fold.ins.i = (k)), (TRef)KINTFOLD)
+#define INT64FOLD(k)	(lj_ir_kint64(J, (k)))
+#define CONDFOLD(cond)	((TRef)FAILFOLD + (TRef)(cond))
+#define LEFTFOLD	(J->fold.ins.op1)
+#define RIGHTFOLD	(J->fold.ins.op2)
+#define CSEFOLD		(lj_opt_cse(J))
+#define EMITFOLD	(lj_ir_emit(J))
+
+/* Load/store forwarding. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_aload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_hload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_uload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_fload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_xload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_tab_len(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_hrefk(jit_State *J);
+LJ_FUNC int LJ_FASTCALL lj_opt_fwd_href_nokey(jit_State *J);
+LJ_FUNC int LJ_FASTCALL lj_opt_fwd_tptr(jit_State *J, IRRef lim);
+LJ_FUNC int lj_opt_fwd_wasnonnil(jit_State *J, IROpT loadop, IRRef xref);
+
+/* Dead-store elimination. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_ahstore(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_ustore(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_fstore(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_xstore(jit_State *J);
+
+/* Narrowing. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_convert(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_index(jit_State *J, TRef key);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_toint(jit_State *J, TRef tr);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_tobit(jit_State *J, TRef tr);
+#if LJ_HASFFI
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_cindex(jit_State *J, TRef key);
+#endif
+LJ_FUNC TRef lj_opt_narrow_arith(jit_State *J, TRef rb, TRef rc,
+				 TValue *vb, TValue *vc, IROp op);
+LJ_FUNC TRef lj_opt_narrow_unm(jit_State *J, TRef rc, TValue *vc);
+LJ_FUNC TRef lj_opt_narrow_mod(jit_State *J, TRef rb, TRef rc, TValue *vc);
+LJ_FUNC TRef lj_opt_narrow_pow(jit_State *J, TRef rb, TRef rc, TValue *vc);
+LJ_FUNC IRType lj_opt_narrow_forl(jit_State *J, cTValue *forbase);
+
+/* Optimization passes. */
+LJ_FUNC void lj_opt_dce(jit_State *J);
+LJ_FUNC int lj_opt_loop(jit_State *J);
+#if LJ_SOFTFP || (LJ_32 && LJ_HASFFI)
+LJ_FUNC void lj_opt_split(jit_State *J);
+#else
+#define lj_opt_split(J)		UNUSED(J)
+#endif
+LJ_FUNC void lj_opt_sink(jit_State *J);
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_jit.h b/lib/luajit/src/lj_jit.h
new file mode 100644
index 00000000..b69e4f4e
--- /dev/null
+++ b/lib/luajit/src/lj_jit.h
@@ -0,0 +1,416 @@
+/*
+** Common definitions for the JIT compiler.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_JIT_H
+#define _LJ_JIT_H
+
+#include "lj_obj.h"
+#include "lj_ir.h"
+
+/* JIT engine flags. */
+#define JIT_F_ON		0x00000001
+
+/* CPU-specific JIT engine flags. */
+#if LJ_TARGET_X86ORX64
+#define JIT_F_CMOV		0x00000010
+#define JIT_F_SSE2		0x00000020
+#define JIT_F_SSE3		0x00000040
+#define JIT_F_SSE4_1		0x00000080
+#define JIT_F_P4		0x00000100
+#define JIT_F_PREFER_IMUL	0x00000200
+#define JIT_F_SPLIT_XMM		0x00000400
+#define JIT_F_LEA_AGU		0x00000800
+
+/* Names for the CPU-specific flags. Must match the order above. */
+#define JIT_F_CPU_FIRST		JIT_F_CMOV
+#define JIT_F_CPUSTRING		"\4CMOV\4SSE2\4SSE3\6SSE4.1\2P4\3AMD\2K8\4ATOM"
+#elif LJ_TARGET_ARM
+#define JIT_F_ARMV6_		0x00000010
+#define JIT_F_ARMV6T2_		0x00000020
+#define JIT_F_ARMV7		0x00000040
+#define JIT_F_VFPV2		0x00000080
+#define JIT_F_VFPV3		0x00000100
+
+#define JIT_F_ARMV6		(JIT_F_ARMV6_|JIT_F_ARMV6T2_|JIT_F_ARMV7)
+#define JIT_F_ARMV6T2		(JIT_F_ARMV6T2_|JIT_F_ARMV7)
+#define JIT_F_VFP		(JIT_F_VFPV2|JIT_F_VFPV3)
+
+/* Names for the CPU-specific flags. Must match the order above. */
+#define JIT_F_CPU_FIRST		JIT_F_ARMV6_
+#define JIT_F_CPUSTRING		"\5ARMv6\7ARMv6T2\5ARMv7\5VFPv2\5VFPv3"
+#elif LJ_TARGET_PPC
+#define JIT_F_SQRT		0x00000010
+#define JIT_F_ROUND		0x00000020
+
+/* Names for the CPU-specific flags. Must match the order above. */
+#define JIT_F_CPU_FIRST		JIT_F_SQRT
+#define JIT_F_CPUSTRING		"\4SQRT\5ROUND"
+#elif LJ_TARGET_MIPS
+#define JIT_F_MIPS32R2		0x00000010
+
+/* Names for the CPU-specific flags. Must match the order above. */
+#define JIT_F_CPU_FIRST		JIT_F_MIPS32R2
+#define JIT_F_CPUSTRING		"\010MIPS32R2"
+#else
+#define JIT_F_CPU_FIRST		0
+#define JIT_F_CPUSTRING		""
+#endif
+
+/* Optimization flags. */
+#define JIT_F_OPT_MASK		0x0fff0000
+
+#define JIT_F_OPT_FOLD		0x00010000
+#define JIT_F_OPT_CSE		0x00020000
+#define JIT_F_OPT_DCE		0x00040000
+#define JIT_F_OPT_FWD		0x00080000
+#define JIT_F_OPT_DSE		0x00100000
+#define JIT_F_OPT_NARROW	0x00200000
+#define JIT_F_OPT_LOOP		0x00400000
+#define JIT_F_OPT_ABC		0x00800000
+#define JIT_F_OPT_SINK		0x01000000
+#define JIT_F_OPT_FUSE		0x02000000
+
+/* Optimizations names for -O. Must match the order above. */
+#define JIT_F_OPT_FIRST		JIT_F_OPT_FOLD
+#define JIT_F_OPTSTRING	\
+  "\4fold\3cse\3dce\3fwd\3dse\6narrow\4loop\3abc\4sink\4fuse"
+
+/* Optimization levels set a fixed combination of flags. */
+#define JIT_F_OPT_0	0
+#define JIT_F_OPT_1	(JIT_F_OPT_FOLD|JIT_F_OPT_CSE|JIT_F_OPT_DCE)
+#define JIT_F_OPT_2	(JIT_F_OPT_1|JIT_F_OPT_NARROW|JIT_F_OPT_LOOP)
+#define JIT_F_OPT_3	(JIT_F_OPT_2|\
+  JIT_F_OPT_FWD|JIT_F_OPT_DSE|JIT_F_OPT_ABC|JIT_F_OPT_SINK|JIT_F_OPT_FUSE)
+#define JIT_F_OPT_DEFAULT	JIT_F_OPT_3
+
+#if LJ_TARGET_WINDOWS || LJ_64
+/* See: http://blogs.msdn.com/oldnewthing/archive/2003/10/08/55239.aspx */
+#define JIT_P_sizemcode_DEFAULT		64
+#else
+/* Could go as low as 4K, but the mmap() overhead would be rather high. */
+#define JIT_P_sizemcode_DEFAULT		32
+#endif
+
+/* Optimization parameters and their defaults. Length is a char in octal! */
+#define JIT_PARAMDEF(_) \
+  _(\010, maxtrace,	1000)	/* Max. # of traces in cache. */ \
+  _(\011, maxrecord,	4000)	/* Max. # of recorded IR instructions. */ \
+  _(\012, maxirconst,	500)	/* Max. # of IR constants of a trace. */ \
+  _(\007, maxside,	100)	/* Max. # of side traces of a root trace. */ \
+  _(\007, maxsnap,	500)	/* Max. # of snapshots for a trace. */ \
+  \
+  _(\007, hotloop,	56)	/* # of iter. to detect a hot loop/call. */ \
+  _(\007, hotexit,	10)	/* # of taken exits to start a side trace. */ \
+  _(\007, tryside,	4)	/* # of attempts to compile a side trace. */ \
+  \
+  _(\012, instunroll,	4)	/* Max. unroll for instable loops. */ \
+  _(\012, loopunroll,	15)	/* Max. unroll for loop ops in side traces. */ \
+  _(\012, callunroll,	3)	/* Max. unroll for recursive calls. */ \
+  _(\011, recunroll,	2)	/* Min. unroll for true recursion. */ \
+  \
+  /* Size of each machine code area (in KBytes). */ \
+  _(\011, sizemcode,	JIT_P_sizemcode_DEFAULT) \
+  /* Max. total size of all machine code areas (in KBytes). */ \
+  _(\010, maxmcode,	512) \
+  /* End of list. */
+
+enum {
+#define JIT_PARAMENUM(len, name, value)	JIT_P_##name,
+JIT_PARAMDEF(JIT_PARAMENUM)
+#undef JIT_PARAMENUM
+  JIT_P__MAX
+};
+
+#define JIT_PARAMSTR(len, name, value)	#len #name
+#define JIT_P_STRING	JIT_PARAMDEF(JIT_PARAMSTR)
+
+/* Trace compiler state. */
+typedef enum {
+  LJ_TRACE_IDLE,	/* Trace compiler idle. */
+  LJ_TRACE_ACTIVE = 0x10,
+  LJ_TRACE_RECORD,	/* Bytecode recording active. */
+  LJ_TRACE_START,	/* New trace started. */
+  LJ_TRACE_END,		/* End of trace. */
+  LJ_TRACE_ASM,		/* Assemble trace. */
+  LJ_TRACE_ERR		/* Trace aborted with error. */
+} TraceState;
+
+/* Post-processing action. */
+typedef enum {
+  LJ_POST_NONE,		/* No action. */
+  LJ_POST_FIXCOMP,	/* Fixup comparison and emit pending guard. */
+  LJ_POST_FIXGUARD,	/* Fixup and emit pending guard. */
+  LJ_POST_FIXGUARDSNAP,	/* Fixup and emit pending guard and snapshot. */
+  LJ_POST_FIXBOOL,	/* Fixup boolean result. */
+  LJ_POST_FIXCONST,	/* Fixup constant results. */
+  LJ_POST_FFRETRY	/* Suppress recording of retried fast functions. */
+} PostProc;
+
+/* Machine code type. */
+#if LJ_TARGET_X86ORX64
+typedef uint8_t MCode;
+#else
+typedef uint32_t MCode;
+#endif
+
+/* Stack snapshot header. */
+typedef struct SnapShot {
+  uint16_t mapofs;	/* Offset into snapshot map. */
+  IRRef1 ref;		/* First IR ref for this snapshot. */
+  uint8_t nslots;	/* Number of valid slots. */
+  uint8_t topslot;	/* Maximum frame extent. */
+  uint8_t nent;		/* Number of compressed entries. */
+  uint8_t count;	/* Count of taken exits for this snapshot. */
+} SnapShot;
+
+#define SNAPCOUNT_DONE	255	/* Already compiled and linked a side trace. */
+
+/* Compressed snapshot entry. */
+typedef uint32_t SnapEntry;
+
+#define SNAP_FRAME		0x010000	/* Frame slot. */
+#define SNAP_CONT		0x020000	/* Continuation slot. */
+#define SNAP_NORESTORE		0x040000	/* No need to restore slot. */
+#define SNAP_SOFTFPNUM		0x080000	/* Soft-float number. */
+LJ_STATIC_ASSERT(SNAP_FRAME == TREF_FRAME);
+LJ_STATIC_ASSERT(SNAP_CONT == TREF_CONT);
+
+#define SNAP(slot, flags, ref)	(((SnapEntry)(slot) << 24) + (flags) + (ref))
+#define SNAP_TR(slot, tr) \
+  (((SnapEntry)(slot) << 24) + ((tr) & (TREF_CONT|TREF_FRAME|TREF_REFMASK)))
+#define SNAP_MKPC(pc)		((SnapEntry)u32ptr(pc))
+#define SNAP_MKFTSZ(ftsz)	((SnapEntry)(ftsz))
+#define snap_ref(sn)		((sn) & 0xffff)
+#define snap_slot(sn)		((BCReg)((sn) >> 24))
+#define snap_isframe(sn)	((sn) & SNAP_FRAME)
+#define snap_pc(sn)		((const BCIns *)(uintptr_t)(sn))
+#define snap_setref(sn, ref)	(((sn) & (0xffff0000&~SNAP_NORESTORE)) | (ref))
+
+/* Snapshot and exit numbers. */
+typedef uint32_t SnapNo;
+typedef uint32_t ExitNo;
+
+/* Trace number. */
+typedef uint32_t TraceNo;	/* Used to pass around trace numbers. */
+typedef uint16_t TraceNo1;	/* Stored trace number. */
+
+/* Type of link. ORDER LJ_TRLINK */
+typedef enum {
+  LJ_TRLINK_NONE,		/* Incomplete trace. No link, yet. */
+  LJ_TRLINK_ROOT,		/* Link to other root trace. */
+  LJ_TRLINK_LOOP,		/* Loop to same trace. */
+  LJ_TRLINK_TAILREC,		/* Tail-recursion. */
+  LJ_TRLINK_UPREC,		/* Up-recursion. */
+  LJ_TRLINK_DOWNREC,		/* Down-recursion. */
+  LJ_TRLINK_INTERP,		/* Fallback to interpreter. */
+  LJ_TRLINK_RETURN		/* Return to interpreter. */
+} TraceLink;
+
+/* Trace object. */
+typedef struct GCtrace {
+  GCHeader;
+  uint8_t topslot;	/* Top stack slot already checked to be allocated. */
+  uint8_t linktype;	/* Type of link. */
+  IRRef nins;		/* Next IR instruction. Biased with REF_BIAS. */
+  GCRef gclist;
+  IRIns *ir;		/* IR instructions/constants. Biased with REF_BIAS. */
+  IRRef nk;		/* Lowest IR constant. Biased with REF_BIAS. */
+  uint16_t nsnap;	/* Number of snapshots. */
+  uint16_t nsnapmap;	/* Number of snapshot map elements. */
+  SnapShot *snap;	/* Snapshot array. */
+  SnapEntry *snapmap;	/* Snapshot map. */
+  GCRef startpt;	/* Starting prototype. */
+  MRef startpc;		/* Bytecode PC of starting instruction. */
+  BCIns startins;	/* Original bytecode of starting instruction. */
+  MSize szmcode;	/* Size of machine code. */
+  MCode *mcode;		/* Start of machine code. */
+  MSize mcloop;		/* Offset of loop start in machine code. */
+  uint16_t nchild;	/* Number of child traces (root trace only). */
+  uint16_t spadjust;	/* Stack pointer adjustment (offset in bytes). */
+  TraceNo1 traceno;	/* Trace number. */
+  TraceNo1 link;	/* Linked trace (or self for loops). */
+  TraceNo1 root;	/* Root trace of side trace (or 0 for root traces). */
+  TraceNo1 nextroot;	/* Next root trace for same prototype. */
+  TraceNo1 nextside;	/* Next side trace of same root trace. */
+  uint8_t sinktags;	/* Trace has SINK tags. */
+  uint8_t unused1;
+#ifdef LUAJIT_USE_GDBJIT
+  void *gdbjit_entry;	/* GDB JIT entry. */
+#endif
+} GCtrace;
+
+#define gco2trace(o)	check_exp((o)->gch.gct == ~LJ_TTRACE, (GCtrace *)(o))
+#define traceref(J, n) \
+  check_exp((n)>0 && (MSize)(n)<J->sizetrace, (GCtrace *)gcref(J->trace[(n)]))
+
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCtrace, gclist));
+
+static LJ_AINLINE MSize snap_nextofs(GCtrace *T, SnapShot *snap)
+{
+  if (snap+1 == &T->snap[T->nsnap])
+    return T->nsnapmap;
+  else
+    return (snap+1)->mapofs;
+}
+
+/* Round-robin penalty cache for bytecodes leading to aborted traces. */
+typedef struct HotPenalty {
+  MRef pc;		/* Starting bytecode PC. */
+  uint16_t val;		/* Penalty value, i.e. hotcount start. */
+  uint16_t reason;	/* Abort reason (really TraceErr). */
+} HotPenalty;
+
+#define PENALTY_SLOTS	64	/* Penalty cache slot. Must be a power of 2. */
+#define PENALTY_MIN	(36*2)	/* Minimum penalty value. */
+#define PENALTY_MAX	60000	/* Maximum penalty value. */
+#define PENALTY_RNDBITS	4	/* # of random bits to add to penalty value. */
+
+/* Round-robin backpropagation cache for narrowing conversions. */
+typedef struct BPropEntry {
+  IRRef1 key;		/* Key: original reference. */
+  IRRef1 val;		/* Value: reference after conversion. */
+  IRRef mode;		/* Mode for this entry (currently IRCONV_*). */
+} BPropEntry;
+
+/* Number of slots for the backpropagation cache. Must be a power of 2. */
+#define BPROP_SLOTS	16
+
+/* Scalar evolution analysis cache. */
+typedef struct ScEvEntry {
+  IRRef1 idx;		/* Index reference. */
+  IRRef1 start;		/* Constant start reference. */
+  IRRef1 stop;		/* Constant stop reference. */
+  IRRef1 step;		/* Constant step reference. */
+  IRType1 t;		/* Scalar type. */
+  uint8_t dir;		/* Direction. 1: +, 0: -. */
+} ScEvEntry;
+
+/* 128 bit SIMD constants. */
+enum {
+  LJ_KSIMD_ABS,
+  LJ_KSIMD_NEG,
+  LJ_KSIMD__MAX
+};
+
+/* Get 16 byte aligned pointer to SIMD constant. */
+#define LJ_KSIMD(J, n) \
+  ((TValue *)(((intptr_t)&J->ksimd[2*(n)] + 15) & ~(intptr_t)15))
+
+/* Set/reset flag to activate the SPLIT pass for the current trace. */
+#if LJ_SOFTFP || (LJ_32 && LJ_HASFFI)
+#define lj_needsplit(J)		(J->needsplit = 1)
+#define lj_resetsplit(J)	(J->needsplit = 0)
+#else
+#define lj_needsplit(J)		UNUSED(J)
+#define lj_resetsplit(J)	UNUSED(J)
+#endif
+
+/* Fold state is used to fold instructions on-the-fly. */
+typedef struct FoldState {
+  IRIns ins;		/* Currently emitted instruction. */
+  IRIns left;		/* Instruction referenced by left operand. */
+  IRIns right;		/* Instruction referenced by right operand. */
+} FoldState;
+
+/* JIT compiler state. */
+typedef struct jit_State {
+  GCtrace cur;		/* Current trace. */
+
+  lua_State *L;		/* Current Lua state. */
+  const BCIns *pc;	/* Current PC. */
+  GCfunc *fn;		/* Current function. */
+  GCproto *pt;		/* Current prototype. */
+  TRef *base;		/* Current frame base, points into J->slots. */
+
+  uint32_t flags;	/* JIT engine flags. */
+  BCReg maxslot;	/* Relative to baseslot. */
+  BCReg baseslot;	/* Current frame base, offset into J->slots. */
+
+  uint8_t mergesnap;	/* Allowed to merge with next snapshot. */
+  uint8_t needsnap;	/* Need snapshot before recording next bytecode. */
+  IRType1 guardemit;	/* Accumulated IRT_GUARD for emitted instructions. */
+  uint8_t bcskip;	/* Number of bytecode instructions to skip. */
+
+  FoldState fold;	/* Fold state. */
+
+  const BCIns *bc_min;	/* Start of allowed bytecode range for root trace. */
+  MSize bc_extent;	/* Extent of the range. */
+
+  TraceState state;	/* Trace compiler state. */
+
+  int32_t instunroll;	/* Unroll counter for instable loops. */
+  int32_t loopunroll;	/* Unroll counter for loop ops in side traces. */
+  int32_t tailcalled;	/* Number of successive tailcalls. */
+  int32_t framedepth;	/* Current frame depth. */
+  int32_t retdepth;	/* Return frame depth (count of RETF). */
+
+  MRef k64;		/* Pointer to chained array of 64 bit constants. */
+  TValue ksimd[LJ_KSIMD__MAX*2+1];  /* 16 byte aligned SIMD constants. */
+
+  IRIns *irbuf;		/* Temp. IR instruction buffer. Biased with REF_BIAS. */
+  IRRef irtoplim;	/* Upper limit of instuction buffer (biased). */
+  IRRef irbotlim;	/* Lower limit of instuction buffer (biased). */
+  IRRef loopref;	/* Last loop reference or ref of final LOOP (or 0). */
+
+  MSize sizesnap;	/* Size of temp. snapshot buffer. */
+  SnapShot *snapbuf;	/* Temp. snapshot buffer. */
+  SnapEntry *snapmapbuf;  /* Temp. snapshot map buffer. */
+  MSize sizesnapmap;	/* Size of temp. snapshot map buffer. */
+
+  PostProc postproc;	/* Required post-processing after execution. */
+#if LJ_SOFTFP || (LJ_32 && LJ_HASFFI)
+  int needsplit;	/* Need SPLIT pass. */
+#endif
+
+  GCRef *trace;		/* Array of traces. */
+  TraceNo freetrace;	/* Start of scan for next free trace. */
+  MSize sizetrace;	/* Size of trace array. */
+
+  IRRef1 chain[IR__MAX];  /* IR instruction skip-list chain anchors. */
+  TRef slot[LJ_MAX_JSLOTS+LJ_STACK_EXTRA];  /* Stack slot map. */
+
+  int32_t param[JIT_P__MAX];  /* JIT engine parameters. */
+
+  MCode *exitstubgroup[LJ_MAX_EXITSTUBGR];  /* Exit stub group addresses. */
+
+  HotPenalty penalty[PENALTY_SLOTS];  /* Penalty slots. */
+  uint32_t penaltyslot;	/* Round-robin index into penalty slots. */
+  uint32_t prngstate;	/* PRNG state. */
+
+  BPropEntry bpropcache[BPROP_SLOTS];  /* Backpropagation cache slots. */
+  uint32_t bpropslot;	/* Round-robin index into bpropcache slots. */
+
+  ScEvEntry scev;	/* Scalar evolution analysis cache slots. */
+
+  const BCIns *startpc;	/* Bytecode PC of starting instruction. */
+  TraceNo parent;	/* Parent of current side trace (0 for root traces). */
+  ExitNo exitno;	/* Exit number in parent of current side trace. */
+
+  BCIns *patchpc;	/* PC for pending re-patch. */
+  BCIns patchins;	/* Instruction for pending re-patch. */
+
+  int mcprot;		/* Protection of current mcode area. */
+  MCode *mcarea;	/* Base of current mcode area. */
+  MCode *mctop;		/* Top of current mcode area. */
+  MCode *mcbot;		/* Bottom of current mcode area. */
+  size_t szmcarea;	/* Size of current mcode area. */
+  size_t szallmcarea;	/* Total size of all allocated mcode areas. */
+
+  TValue errinfo;	/* Additional info element for trace errors. */
+}
+#if LJ_TARGET_ARM
+LJ_ALIGN(16)		/* For DISPATCH-relative addresses in assembler part. */
+#endif
+jit_State;
+
+/* Trivial PRNG e.g. used for penalty randomization. */
+static LJ_AINLINE uint32_t LJ_PRNG_BITS(jit_State *J, int bits)
+{
+  /* Yes, this LCG is very weak, but that doesn't matter for our use case. */
+  J->prngstate = J->prngstate * 1103515245 + 12345;
+  return J->prngstate >> (32-bits);
+}
+
+#endif
diff --git a/lib/luajit/src/lj_lex.c b/lib/luajit/src/lj_lex.c
new file mode 100644
index 00000000..4fa39313
--- /dev/null
+++ b/lib/luajit/src/lj_lex.c
@@ -0,0 +1,481 @@
+/*
+** Lexical analyzer.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_lex_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#if LJ_HASFFI
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lualib.h"
+#endif
+#include "lj_state.h"
+#include "lj_lex.h"
+#include "lj_parse.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+
+/* Lua lexer token names. */
+static const char *const tokennames[] = {
+#define TKSTR1(name)		#name,
+#define TKSTR2(name, sym)	#sym,
+TKDEF(TKSTR1, TKSTR2)
+#undef TKSTR1
+#undef TKSTR2
+  NULL
+};
+
+/* -- Buffer handling ----------------------------------------------------- */
+
+#define char2int(c)		((int)(uint8_t)(c))
+#define next(ls) \
+  (ls->current = (ls->n--) > 0 ? char2int(*ls->p++) : fillbuf(ls))
+#define save_and_next(ls)	(save(ls, ls->current), next(ls))
+#define currIsNewline(ls)	(ls->current == '\n' || ls->current == '\r')
+#define END_OF_STREAM		(-1)
+
+static int fillbuf(LexState *ls)
+{
+  size_t sz;
+  const char *buf = ls->rfunc(ls->L, ls->rdata, &sz);
+  if (buf == NULL || sz == 0) return END_OF_STREAM;
+  ls->n = (MSize)sz - 1;
+  ls->p = buf;
+  return char2int(*(ls->p++));
+}
+
+static LJ_NOINLINE void save_grow(LexState *ls, int c)
+{
+  MSize newsize;
+  if (ls->sb.sz >= LJ_MAX_STR/2)
+    lj_lex_error(ls, 0, LJ_ERR_XELEM);
+  newsize = ls->sb.sz * 2;
+  lj_str_resizebuf(ls->L, &ls->sb, newsize);
+  ls->sb.buf[ls->sb.n++] = (char)c;
+}
+
+static LJ_AINLINE void save(LexState *ls, int c)
+{
+  if (LJ_UNLIKELY(ls->sb.n + 1 > ls->sb.sz))
+    save_grow(ls, c);
+  else
+    ls->sb.buf[ls->sb.n++] = (char)c;
+}
+
+static void inclinenumber(LexState *ls)
+{
+  int old = ls->current;
+  lua_assert(currIsNewline(ls));
+  next(ls);  /* skip `\n' or `\r' */
+  if (currIsNewline(ls) && ls->current != old)
+    next(ls);  /* skip `\n\r' or `\r\n' */
+  if (++ls->linenumber >= LJ_MAX_LINE)
+    lj_lex_error(ls, ls->token, LJ_ERR_XLINES);
+}
+
+/* -- Scanner for terminals ----------------------------------------------- */
+
+/* Parse a number literal. */
+static void lex_number(LexState *ls, TValue *tv)
+{
+  StrScanFmt fmt;
+  int c, xp = 'e';
+  lua_assert(lj_char_isdigit(ls->current));
+  if ((c = ls->current) == '0') {
+    save_and_next(ls);
+    if ((ls->current | 0x20) == 'x') xp = 'p';
+  }
+  while (lj_char_isident(ls->current) || ls->current == '.' ||
+	 ((ls->current == '-' || ls->current == '+') && (c | 0x20) == xp)) {
+    c = ls->current;
+    save_and_next(ls);
+  }
+  save(ls, '\0');
+  fmt = lj_strscan_scan((const uint8_t *)ls->sb.buf, tv,
+	  (LJ_DUALNUM ? STRSCAN_OPT_TOINT : STRSCAN_OPT_TONUM) |
+	  (LJ_HASFFI ? (STRSCAN_OPT_LL|STRSCAN_OPT_IMAG) : 0));
+  if (LJ_DUALNUM && fmt == STRSCAN_INT) {
+    setitype(tv, LJ_TISNUM);
+  } else if (fmt == STRSCAN_NUM) {
+    /* Already in correct format. */
+#if LJ_HASFFI
+  } else if (fmt != STRSCAN_ERROR) {
+    lua_State *L = ls->L;
+    GCcdata *cd;
+    lua_assert(fmt == STRSCAN_I64 || fmt == STRSCAN_U64 || fmt == STRSCAN_IMAG);
+    if (!ctype_ctsG(G(L))) {
+      ptrdiff_t oldtop = savestack(L, L->top);
+      luaopen_ffi(L);  /* Load FFI library on-demand. */
+      L->top = restorestack(L, oldtop);
+    }
+    if (fmt == STRSCAN_IMAG) {
+      cd = lj_cdata_new_(L, CTID_COMPLEX_DOUBLE, 2*sizeof(double));
+      ((double *)cdataptr(cd))[0] = 0;
+      ((double *)cdataptr(cd))[1] = numV(tv);
+    } else {
+      cd = lj_cdata_new_(L, fmt==STRSCAN_I64 ? CTID_INT64 : CTID_UINT64, 8);
+      *(uint64_t *)cdataptr(cd) = tv->u64;
+    }
+    lj_parse_keepcdata(ls, tv, cd);
+#endif
+  } else {
+    lua_assert(fmt == STRSCAN_ERROR);
+    lj_lex_error(ls, TK_number, LJ_ERR_XNUMBER);
+  }
+}
+
+static int skip_sep(LexState *ls)
+{
+  int count = 0;
+  int s = ls->current;
+  lua_assert(s == '[' || s == ']');
+  save_and_next(ls);
+  while (ls->current == '=') {
+    save_and_next(ls);
+    count++;
+  }
+  return (ls->current == s) ? count : (-count) - 1;
+}
+
+static void read_long_string(LexState *ls, TValue *tv, int sep)
+{
+  save_and_next(ls);  /* skip 2nd `[' */
+  if (currIsNewline(ls))  /* string starts with a newline? */
+    inclinenumber(ls);  /* skip it */
+  for (;;) {
+    switch (ls->current) {
+    case END_OF_STREAM:
+      lj_lex_error(ls, TK_eof, tv ? LJ_ERR_XLSTR : LJ_ERR_XLCOM);
+      break;
+    case ']':
+      if (skip_sep(ls) == sep) {
+	save_and_next(ls);  /* skip 2nd `]' */
+	goto endloop;
+      }
+      break;
+    case '\n':
+    case '\r':
+      save(ls, '\n');
+      inclinenumber(ls);
+      if (!tv) lj_str_resetbuf(&ls->sb);  /* avoid wasting space */
+      break;
+    default:
+      if (tv) save_and_next(ls);
+      else next(ls);
+      break;
+    }
+  } endloop:
+  if (tv) {
+    GCstr *str = lj_parse_keepstr(ls, ls->sb.buf + (2 + (MSize)sep),
+				      ls->sb.n - 2*(2 + (MSize)sep));
+    setstrV(ls->L, tv, str);
+  }
+}
+
+static void read_string(LexState *ls, int delim, TValue *tv)
+{
+  save_and_next(ls);
+  while (ls->current != delim) {
+    switch (ls->current) {
+    case END_OF_STREAM:
+      lj_lex_error(ls, TK_eof, LJ_ERR_XSTR);
+      continue;
+    case '\n':
+    case '\r':
+      lj_lex_error(ls, TK_string, LJ_ERR_XSTR);
+      continue;
+    case '\\': {
+      int c = next(ls);  /* Skip the '\\'. */
+      switch (c) {
+      case 'a': c = '\a'; break;
+      case 'b': c = '\b'; break;
+      case 'f': c = '\f'; break;
+      case 'n': c = '\n'; break;
+      case 'r': c = '\r'; break;
+      case 't': c = '\t'; break;
+      case 'v': c = '\v'; break;
+      case 'x':  /* Hexadecimal escape '\xXX'. */
+	c = (next(ls) & 15u) << 4;
+	if (!lj_char_isdigit(ls->current)) {
+	  if (!lj_char_isxdigit(ls->current)) goto err_xesc;
+	  c += 9 << 4;
+	}
+	c += (next(ls) & 15u);
+	if (!lj_char_isdigit(ls->current)) {
+	  if (!lj_char_isxdigit(ls->current)) goto err_xesc;
+	  c += 9;
+	}
+	break;
+      case 'z':  /* Skip whitespace. */
+	next(ls);
+	while (lj_char_isspace(ls->current))
+	  if (currIsNewline(ls)) inclinenumber(ls); else next(ls);
+	continue;
+      case '\n': case '\r': save(ls, '\n'); inclinenumber(ls); continue;
+      case '\\': case '\"': case '\'': break;
+      case END_OF_STREAM: continue;
+      default:
+	if (!lj_char_isdigit(c))
+	  goto err_xesc;
+	c -= '0';  /* Decimal escape '\ddd'. */
+	if (lj_char_isdigit(next(ls))) {
+	  c = c*10 + (ls->current - '0');
+	  if (lj_char_isdigit(next(ls))) {
+	    c = c*10 + (ls->current - '0');
+	    if (c > 255) {
+	    err_xesc:
+	      lj_lex_error(ls, TK_string, LJ_ERR_XESC);
+	    }
+	    next(ls);
+	  }
+	}
+	save(ls, c);
+	continue;
+      }
+      save(ls, c);
+      next(ls);
+      continue;
+      }
+    default:
+      save_and_next(ls);
+      break;
+    }
+  }
+  save_and_next(ls);  /* skip delimiter */
+  setstrV(ls->L, tv, lj_parse_keepstr(ls, ls->sb.buf + 1, ls->sb.n - 2));
+}
+
+/* -- Main lexical scanner ------------------------------------------------ */
+
+static int llex(LexState *ls, TValue *tv)
+{
+  lj_str_resetbuf(&ls->sb);
+  for (;;) {
+    if (lj_char_isident(ls->current)) {
+      GCstr *s;
+      if (lj_char_isdigit(ls->current)) {  /* Numeric literal. */
+	lex_number(ls, tv);
+	return TK_number;
+      }
+      /* Identifier or reserved word. */
+      do {
+	save_and_next(ls);
+      } while (lj_char_isident(ls->current));
+      s = lj_parse_keepstr(ls, ls->sb.buf, ls->sb.n);
+      setstrV(ls->L, tv, s);
+      if (s->reserved > 0)  /* Reserved word? */
+	return TK_OFS + s->reserved;
+      return TK_name;
+    }
+    switch (ls->current) {
+    case '\n':
+    case '\r':
+      inclinenumber(ls);
+      continue;
+    case ' ':
+    case '\t':
+    case '\v':
+    case '\f':
+      next(ls);
+      continue;
+    case '-':
+      next(ls);
+      if (ls->current != '-') return '-';
+      /* else is a comment */
+      next(ls);
+      if (ls->current == '[') {
+	int sep = skip_sep(ls);
+	lj_str_resetbuf(&ls->sb);  /* `skip_sep' may dirty the buffer */
+	if (sep >= 0) {
+	  read_long_string(ls, NULL, sep);  /* long comment */
+	  lj_str_resetbuf(&ls->sb);
+	  continue;
+	}
+      }
+      /* else short comment */
+      while (!currIsNewline(ls) && ls->current != END_OF_STREAM)
+	next(ls);
+      continue;
+    case '[': {
+      int sep = skip_sep(ls);
+      if (sep >= 0) {
+	read_long_string(ls, tv, sep);
+	return TK_string;
+      } else if (sep == -1) {
+	return '[';
+      } else {
+	lj_lex_error(ls, TK_string, LJ_ERR_XLDELIM);
+	continue;
+      }
+      }
+    case '=':
+      next(ls);
+      if (ls->current != '=') return '='; else { next(ls); return TK_eq; }
+    case '<':
+      next(ls);
+      if (ls->current != '=') return '<'; else { next(ls); return TK_le; }
+    case '>':
+      next(ls);
+      if (ls->current != '=') return '>'; else { next(ls); return TK_ge; }
+    case '~':
+      next(ls);
+      if (ls->current != '=') return '~'; else { next(ls); return TK_ne; }
+    case ':':
+      next(ls);
+      if (ls->current != ':') return ':'; else { next(ls); return TK_label; }
+    case '"':
+    case '\'':
+      read_string(ls, ls->current, tv);
+      return TK_string;
+    case '.':
+      save_and_next(ls);
+      if (ls->current == '.') {
+	next(ls);
+	if (ls->current == '.') {
+	  next(ls);
+	  return TK_dots;   /* ... */
+	}
+	return TK_concat;   /* .. */
+      } else if (!lj_char_isdigit(ls->current)) {
+	return '.';
+      } else {
+	lex_number(ls, tv);
+	return TK_number;
+      }
+    case END_OF_STREAM:
+      return TK_eof;
+    default: {
+      int c = ls->current;
+      next(ls);
+      return c;  /* Single-char tokens (+ - / ...). */
+    }
+    }
+  }
+}
+
+/* -- Lexer API ----------------------------------------------------------- */
+
+/* Setup lexer state. */
+int lj_lex_setup(lua_State *L, LexState *ls)
+{
+  int header = 0;
+  ls->L = L;
+  ls->fs = NULL;
+  ls->n = 0;
+  ls->p = NULL;
+  ls->vstack = NULL;
+  ls->sizevstack = 0;
+  ls->vtop = 0;
+  ls->bcstack = NULL;
+  ls->sizebcstack = 0;
+  ls->lookahead = TK_eof;  /* No look-ahead token. */
+  ls->linenumber = 1;
+  ls->lastline = 1;
+  lj_str_resizebuf(ls->L, &ls->sb, LJ_MIN_SBUF);
+  next(ls);  /* Read-ahead first char. */
+  if (ls->current == 0xef && ls->n >= 2 && char2int(ls->p[0]) == 0xbb &&
+      char2int(ls->p[1]) == 0xbf) {  /* Skip UTF-8 BOM (if buffered). */
+    ls->n -= 2;
+    ls->p += 2;
+    next(ls);
+    header = 1;
+  }
+  if (ls->current == '#') {  /* Skip POSIX #! header line. */
+    do {
+      next(ls);
+      if (ls->current == END_OF_STREAM) return 0;
+    } while (!currIsNewline(ls));
+    inclinenumber(ls);
+    header = 1;
+  }
+  if (ls->current == LUA_SIGNATURE[0]) {  /* Bytecode dump. */
+    if (header) {
+      /*
+      ** Loading bytecode with an extra header is disabled for security
+      ** reasons. This may circumvent the usual check for bytecode vs.
+      ** Lua code by looking at the first char. Since this is a potential
+      ** security violation no attempt is made to echo the chunkname either.
+      */
+      setstrV(L, L->top++, lj_err_str(L, LJ_ERR_BCBAD));
+      lj_err_throw(L, LUA_ERRSYNTAX);
+    }
+    return 1;
+  }
+  return 0;
+}
+
+/* Cleanup lexer state. */
+void lj_lex_cleanup(lua_State *L, LexState *ls)
+{
+  global_State *g = G(L);
+  lj_mem_freevec(g, ls->bcstack, ls->sizebcstack, BCInsLine);
+  lj_mem_freevec(g, ls->vstack, ls->sizevstack, VarInfo);
+  lj_str_freebuf(g, &ls->sb);
+}
+
+void lj_lex_next(LexState *ls)
+{
+  ls->lastline = ls->linenumber;
+  if (LJ_LIKELY(ls->lookahead == TK_eof)) {  /* No lookahead token? */
+    ls->token = llex(ls, &ls->tokenval);  /* Get next token. */
+  } else {  /* Otherwise return lookahead token. */
+    ls->token = ls->lookahead;
+    ls->lookahead = TK_eof;
+    ls->tokenval = ls->lookaheadval;
+  }
+}
+
+LexToken lj_lex_lookahead(LexState *ls)
+{
+  lua_assert(ls->lookahead == TK_eof);
+  ls->lookahead = llex(ls, &ls->lookaheadval);
+  return ls->lookahead;
+}
+
+const char *lj_lex_token2str(LexState *ls, LexToken token)
+{
+  if (token > TK_OFS)
+    return tokennames[token-TK_OFS-1];
+  else if (!lj_char_iscntrl(token))
+    return lj_str_pushf(ls->L, "%c", token);
+  else
+    return lj_str_pushf(ls->L, "char(%d)", token);
+}
+
+void lj_lex_error(LexState *ls, LexToken token, ErrMsg em, ...)
+{
+  const char *tok;
+  va_list argp;
+  if (token == 0) {
+    tok = NULL;
+  } else if (token == TK_name || token == TK_string || token == TK_number) {
+    save(ls, '\0');
+    tok = ls->sb.buf;
+  } else {
+    tok = lj_lex_token2str(ls, token);
+  }
+  va_start(argp, em);
+  lj_err_lex(ls->L, ls->chunkname, tok, ls->linenumber, em, argp);
+  va_end(argp);
+}
+
+void lj_lex_init(lua_State *L)
+{
+  uint32_t i;
+  for (i = 0; i < TK_RESERVED; i++) {
+    GCstr *s = lj_str_newz(L, tokennames[i]);
+    fixstring(s);  /* Reserved words are never collected. */
+    s->reserved = (uint8_t)(i+1);
+  }
+}
+
diff --git a/lib/luajit/src/lj_lex.h b/lib/luajit/src/lj_lex.h
new file mode 100644
index 00000000..a7ff29a0
--- /dev/null
+++ b/lib/luajit/src/lj_lex.h
@@ -0,0 +1,85 @@
+/*
+** Lexical analyzer.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_LEX_H
+#define _LJ_LEX_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+#include "lj_err.h"
+
+/* Lua lexer tokens. */
+#define TKDEF(_, __) \
+  _(and) _(break) _(do) _(else) _(elseif) _(end) _(false) \
+  _(for) _(function) _(goto) _(if) _(in) _(local) _(nil) _(not) _(or) \
+  _(repeat) _(return) _(then) _(true) _(until) _(while) \
+  __(concat, ..) __(dots, ...) __(eq, ==) __(ge, >=) __(le, <=) __(ne, ~=) \
+  __(label, ::) __(number, <number>) __(name, <name>) __(string, <string>) \
+  __(eof, <eof>)
+
+enum {
+  TK_OFS = 256,
+#define TKENUM1(name)		TK_##name,
+#define TKENUM2(name, sym)	TK_##name,
+TKDEF(TKENUM1, TKENUM2)
+#undef TKENUM1
+#undef TKENUM2
+  TK_RESERVED = TK_while - TK_OFS
+};
+
+typedef int LexToken;
+
+/* Combined bytecode ins/line. Only used during bytecode generation. */
+typedef struct BCInsLine {
+  BCIns ins;		/* Bytecode instruction. */
+  BCLine line;		/* Line number for this bytecode. */
+} BCInsLine;
+
+/* Info for local variables. Only used during bytecode generation. */
+typedef struct VarInfo {
+  GCRef name;		/* Local variable name or goto/label name. */
+  BCPos startpc;	/* First point where the local variable is active. */
+  BCPos endpc;		/* First point where the local variable is dead. */
+  uint8_t slot;		/* Variable slot. */
+  uint8_t info;		/* Variable/goto/label info. */
+} VarInfo;
+
+/* Lua lexer state. */
+typedef struct LexState {
+  struct FuncState *fs;	/* Current FuncState. Defined in lj_parse.c. */
+  struct lua_State *L;	/* Lua state. */
+  TValue tokenval;	/* Current token value. */
+  TValue lookaheadval;	/* Lookahead token value. */
+  int current;		/* Current character (charint). */
+  LexToken token;	/* Current token. */
+  LexToken lookahead;	/* Lookahead token. */
+  MSize n;		/* Bytes left in input buffer. */
+  const char *p;	/* Current position in input buffer. */
+  SBuf sb;		/* String buffer for tokens. */
+  lua_Reader rfunc;	/* Reader callback. */
+  void *rdata;		/* Reader callback data. */
+  BCLine linenumber;	/* Input line counter. */
+  BCLine lastline;	/* Line of last token. */
+  GCstr *chunkname;	/* Current chunk name (interned string). */
+  const char *chunkarg;	/* Chunk name argument. */
+  const char *mode;	/* Allow loading bytecode (b) and/or source text (t). */
+  VarInfo *vstack;	/* Stack for names and extents of local variables. */
+  MSize sizevstack;	/* Size of variable stack. */
+  MSize vtop;		/* Top of variable stack. */
+  BCInsLine *bcstack;	/* Stack for bytecode instructions/line numbers. */
+  MSize sizebcstack;	/* Size of bytecode stack. */
+  uint32_t level;	/* Syntactical nesting level. */
+} LexState;
+
+LJ_FUNC int lj_lex_setup(lua_State *L, LexState *ls);
+LJ_FUNC void lj_lex_cleanup(lua_State *L, LexState *ls);
+LJ_FUNC void lj_lex_next(LexState *ls);
+LJ_FUNC LexToken lj_lex_lookahead(LexState *ls);
+LJ_FUNC const char *lj_lex_token2str(LexState *ls, LexToken token);
+LJ_FUNC_NORET void lj_lex_error(LexState *ls, LexToken token, ErrMsg em, ...);
+LJ_FUNC void lj_lex_init(lua_State *L);
+
+#endif
diff --git a/lib/luajit/src/lj_lib.c b/lib/luajit/src/lj_lib.c
new file mode 100644
index 00000000..76c8a064
--- /dev/null
+++ b/lib/luajit/src/lj_lib.c
@@ -0,0 +1,258 @@
+/*
+** Library function support.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_lib_c
+#define LUA_CORE
+
+#include "lauxlib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_bc.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_lib.h"
+
+/* -- Library initialization ---------------------------------------------- */
+
+static GCtab *lib_create_table(lua_State *L, const char *libname, int hsize)
+{
+  if (libname) {
+    luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
+    lua_getfield(L, -1, libname);
+    if (!tvistab(L->top-1)) {
+      L->top--;
+      if (luaL_findtable(L, LUA_GLOBALSINDEX, libname, hsize) != NULL)
+	lj_err_callerv(L, LJ_ERR_BADMODN, libname);
+      settabV(L, L->top, tabV(L->top-1));
+      L->top++;
+      lua_setfield(L, -3, libname);  /* _LOADED[libname] = new table */
+    }
+    L->top--;
+    settabV(L, L->top-1, tabV(L->top));
+  } else {
+    lua_createtable(L, 0, hsize);
+  }
+  return tabV(L->top-1);
+}
+
+void lj_lib_register(lua_State *L, const char *libname,
+		     const uint8_t *p, const lua_CFunction *cf)
+{
+  GCtab *env = tabref(L->env);
+  GCfunc *ofn = NULL;
+  int ffid = *p++;
+  BCIns *bcff = &L2GG(L)->bcff[*p++];
+  GCtab *tab = lib_create_table(L, libname, *p++);
+  ptrdiff_t tpos = L->top - L->base;
+
+  /* Avoid barriers further down. */
+  lj_gc_anybarriert(L, tab);
+  tab->nomm = 0;
+
+  for (;;) {
+    uint32_t tag = *p++;
+    MSize len = tag & LIBINIT_LENMASK;
+    tag &= LIBINIT_TAGMASK;
+    if (tag != LIBINIT_STRING) {
+      const char *name;
+      MSize nuv = (MSize)(L->top - L->base - tpos);
+      GCfunc *fn = lj_func_newC(L, nuv, env);
+      if (nuv) {
+	L->top = L->base + tpos;
+	memcpy(fn->c.upvalue, L->top, sizeof(TValue)*nuv);
+      }
+      fn->c.ffid = (uint8_t)(ffid++);
+      name = (const char *)p;
+      p += len;
+      if (tag == LIBINIT_CF)
+	setmref(fn->c.pc, &G(L)->bc_cfunc_int);
+      else
+	setmref(fn->c.pc, bcff++);
+      if (tag == LIBINIT_ASM_)
+	fn->c.f = ofn->c.f;  /* Copy handler from previous function. */
+      else
+	fn->c.f = *cf++;  /* Get cf or handler from C function table. */
+      if (len) {
+	/* NOBARRIER: See above for common barrier. */
+	setfuncV(L, lj_tab_setstr(L, tab, lj_str_new(L, name, len)), fn);
+      }
+      ofn = fn;
+    } else {
+      switch (tag | len) {
+      case LIBINIT_SET:
+	L->top -= 2;
+	if (tvisstr(L->top+1) && strV(L->top+1)->len == 0)
+	  env = tabV(L->top);
+	else  /* NOBARRIER: See above for common barrier. */
+	  copyTV(L, lj_tab_set(L, tab, L->top+1), L->top);
+	break;
+      case LIBINIT_NUMBER:
+	memcpy(&L->top->n, p, sizeof(double));
+	L->top++;
+	p += sizeof(double);
+	break;
+      case LIBINIT_COPY:
+	copyTV(L, L->top, L->top - *p++);
+	L->top++;
+	break;
+      case LIBINIT_LASTCL:
+	setfuncV(L, L->top++, ofn);
+	break;
+      case LIBINIT_FFID:
+	ffid++;
+	break;
+      case LIBINIT_END:
+	return;
+      default:
+	setstrV(L, L->top++, lj_str_new(L, (const char *)p, len));
+	p += len;
+	break;
+      }
+    }
+  }
+}
+
+/* -- Type checks --------------------------------------------------------- */
+
+TValue *lj_lib_checkany(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (o >= L->top)
+    lj_err_arg(L, narg, LJ_ERR_NOVAL);
+  return o;
+}
+
+GCstr *lj_lib_checkstr(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (o < L->top) {
+    if (LJ_LIKELY(tvisstr(o))) {
+      return strV(o);
+    } else if (tvisnumber(o)) {
+      GCstr *s = lj_str_fromnumber(L, o);
+      setstrV(L, o, s);
+      return s;
+    }
+  }
+  lj_err_argt(L, narg, LUA_TSTRING);
+  return NULL;  /* unreachable */
+}
+
+GCstr *lj_lib_optstr(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  return (o < L->top && !tvisnil(o)) ? lj_lib_checkstr(L, narg) : NULL;
+}
+
+#if LJ_DUALNUM
+void lj_lib_checknumber(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && lj_strscan_numberobj(o)))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+}
+#endif
+
+lua_Number lj_lib_checknum(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top &&
+	(tvisnumber(o) || (tvisstr(o) && lj_strscan_num(strV(o), o)))))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  if (LJ_UNLIKELY(tvisint(o))) {
+    lua_Number n = (lua_Number)intV(o);
+    setnumV(o, n);
+    return n;
+  } else {
+    return numV(o);
+  }
+}
+
+int32_t lj_lib_checkint(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && lj_strscan_numberobj(o)))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else {
+    int32_t i = lj_num2int(numV(o));
+    if (LJ_DUALNUM) setintV(o, i);
+    return i;
+  }
+}
+
+int32_t lj_lib_optint(lua_State *L, int narg, int32_t def)
+{
+  TValue *o = L->base + narg-1;
+  return (o < L->top && !tvisnil(o)) ? lj_lib_checkint(L, narg) : def;
+}
+
+int32_t lj_lib_checkbit(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && lj_strscan_numberobj(o)))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else {
+    int32_t i = lj_num2bit(numV(o));
+    if (LJ_DUALNUM) setintV(o, i);
+    return i;
+  }
+}
+
+GCfunc *lj_lib_checkfunc(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tvisfunc(o)))
+    lj_err_argt(L, narg, LUA_TFUNCTION);
+  return funcV(o);
+}
+
+GCtab *lj_lib_checktab(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tvistab(o)))
+    lj_err_argt(L, narg, LUA_TTABLE);
+  return tabV(o);
+}
+
+GCtab *lj_lib_checktabornil(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (o < L->top) {
+    if (tvistab(o))
+      return tabV(o);
+    else if (tvisnil(o))
+      return NULL;
+  }
+  lj_err_arg(L, narg, LJ_ERR_NOTABN);
+  return NULL;  /* unreachable */
+}
+
+int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst)
+{
+  GCstr *s = def >= 0 ? lj_lib_optstr(L, narg) : lj_lib_checkstr(L, narg);
+  if (s) {
+    const char *opt = strdata(s);
+    MSize len = s->len;
+    int i;
+    for (i = 0; *(const uint8_t *)lst; i++) {
+      if (*(const uint8_t *)lst == len && memcmp(opt, lst+1, len) == 0)
+	return i;
+      lst += 1+*(const uint8_t *)lst;
+    }
+    lj_err_argv(L, narg, LJ_ERR_INVOPTM, opt);
+  }
+  return def;
+}
+
diff --git a/lib/luajit/src/lj_lib.h b/lib/luajit/src/lj_lib.h
new file mode 100644
index 00000000..daacb921
--- /dev/null
+++ b/lib/luajit/src/lj_lib.h
@@ -0,0 +1,112 @@
+/*
+** Library function support.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_LIB_H
+#define _LJ_LIB_H
+
+#include "lj_obj.h"
+
+/*
+** A fallback handler is called by the assembler VM if the fast path fails:
+**
+** - too few arguments:   unrecoverable.
+** - wrong argument type:   recoverable, if coercion succeeds.
+** - bad argument value:  unrecoverable.
+** - stack overflow:        recoverable, if stack reallocation succeeds.
+** - extra handling:        recoverable.
+**
+** The unrecoverable cases throw an error with lj_err_arg(), lj_err_argtype(),
+** lj_err_caller() or lj_err_callermsg().
+** The recoverable cases return 0 or the number of results + 1.
+** The assembler VM retries the fast path only if 0 is returned.
+** This time the fallback must not be called again or it gets stuck in a loop.
+*/
+
+/* Return values from fallback handler. */
+#define FFH_RETRY	0
+#define FFH_UNREACHABLE	FFH_RETRY
+#define FFH_RES(n)	((n)+1)
+#define FFH_TAILCALL	(-1)
+
+LJ_FUNC TValue *lj_lib_checkany(lua_State *L, int narg);
+LJ_FUNC GCstr *lj_lib_checkstr(lua_State *L, int narg);
+LJ_FUNC GCstr *lj_lib_optstr(lua_State *L, int narg);
+#if LJ_DUALNUM
+LJ_FUNC void lj_lib_checknumber(lua_State *L, int narg);
+#else
+#define lj_lib_checknumber(L, narg)	lj_lib_checknum((L), (narg))
+#endif
+LJ_FUNC lua_Number lj_lib_checknum(lua_State *L, int narg);
+LJ_FUNC int32_t lj_lib_checkint(lua_State *L, int narg);
+LJ_FUNC int32_t lj_lib_optint(lua_State *L, int narg, int32_t def);
+LJ_FUNC int32_t lj_lib_checkbit(lua_State *L, int narg);
+LJ_FUNC GCfunc *lj_lib_checkfunc(lua_State *L, int narg);
+LJ_FUNC GCtab *lj_lib_checktab(lua_State *L, int narg);
+LJ_FUNC GCtab *lj_lib_checktabornil(lua_State *L, int narg);
+LJ_FUNC int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst);
+
+/* Avoid including lj_frame.h. */
+#define lj_lib_upvalue(L, n) \
+  (&gcref((L->base-1)->fr.func)->fn.c.upvalue[(n)-1])
+
+#if LJ_TARGET_WINDOWS
+#define lj_lib_checkfpu(L) \
+  do { setnumV(L->top++, (lua_Number)1437217655); \
+    if (lua_tointeger(L, -1) != 1437217655) lj_err_caller(L, LJ_ERR_BADFPU); \
+    L->top--; } while (0)
+#else
+#define lj_lib_checkfpu(L)	UNUSED(L)
+#endif
+
+/* Push internal function on the stack. */
+static LJ_AINLINE void lj_lib_pushcc(lua_State *L, lua_CFunction f,
+				     int id, int n)
+{
+  GCfunc *fn;
+  lua_pushcclosure(L, f, n);
+  fn = funcV(L->top-1);
+  fn->c.ffid = (uint8_t)id;
+  setmref(fn->c.pc, &G(L)->bc_cfunc_int);
+}
+
+#define lj_lib_pushcf(L, fn, id)	(lj_lib_pushcc(L, (fn), (id), 0))
+
+/* Library function declarations. Scanned by buildvm. */
+#define LJLIB_CF(name)		static int lj_cf_##name(lua_State *L)
+#define LJLIB_ASM(name)		static int lj_ffh_##name(lua_State *L)
+#define LJLIB_ASM_(name)
+#define LJLIB_SET(name)
+#define LJLIB_PUSH(arg)
+#define LJLIB_REC(handler)
+#define LJLIB_NOREGUV
+#define LJLIB_NOREG
+
+#define LJ_LIB_REG(L, regname, name) \
+  lj_lib_register(L, regname, lj_lib_init_##name, lj_lib_cf_##name)
+
+LJ_FUNC void lj_lib_register(lua_State *L, const char *libname,
+			     const uint8_t *init, const lua_CFunction *cf);
+
+/* Library init data tags. */
+#define LIBINIT_LENMASK	0x3f
+#define LIBINIT_TAGMASK	0xc0
+#define LIBINIT_CF	0x00
+#define LIBINIT_ASM	0x40
+#define LIBINIT_ASM_	0x80
+#define LIBINIT_STRING	0xc0
+#define LIBINIT_MAXSTR	0x39
+#define LIBINIT_SET	0xfa
+#define LIBINIT_NUMBER	0xfb
+#define LIBINIT_COPY	0xfc
+#define LIBINIT_LASTCL	0xfd
+#define LIBINIT_FFID	0xfe
+#define LIBINIT_END	0xff
+
+/* Exported library functions. */
+
+typedef struct RandomState RandomState;
+LJ_FUNC uint64_t LJ_FASTCALL lj_math_random_step(RandomState *rs);
+
+#endif
diff --git a/lib/luajit/src/lj_load.c b/lib/luajit/src/lj_load.c
new file mode 100644
index 00000000..edfdc903
--- /dev/null
+++ b/lib/luajit/src/lj_load.c
@@ -0,0 +1,168 @@
+/*
+** Load and dump code.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <errno.h>
+#include <stdio.h>
+
+#define lj_load_c
+#define LUA_CORE
+
+#include "lua.h"
+#include "lauxlib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_func.h"
+#include "lj_frame.h"
+#include "lj_vm.h"
+#include "lj_lex.h"
+#include "lj_bcdump.h"
+#include "lj_parse.h"
+
+/* -- Load Lua source code and bytecode ----------------------------------- */
+
+static TValue *cpparser(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  LexState *ls = (LexState *)ud;
+  GCproto *pt;
+  GCfunc *fn;
+  int bc;
+  UNUSED(dummy);
+  cframe_errfunc(L->cframe) = -1;  /* Inherit error function. */
+  bc = lj_lex_setup(L, ls);
+  if (ls->mode && !strchr(ls->mode, bc ? 'b' : 't')) {
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_XMODE));
+    lj_err_throw(L, LUA_ERRSYNTAX);
+  }
+  pt = bc ? lj_bcread(ls) : lj_parse(ls);
+  fn = lj_func_newL_empty(L, pt, tabref(L->env));
+  /* Don't combine above/below into one statement. */
+  setfuncV(L, L->top++, fn);
+  return NULL;
+}
+
+LUA_API int lua_loadx(lua_State *L, lua_Reader reader, void *data,
+		      const char *chunkname, const char *mode)
+{
+  LexState ls;
+  int status;
+  ls.rfunc = reader;
+  ls.rdata = data;
+  ls.chunkarg = chunkname ? chunkname : "?";
+  ls.mode = mode;
+  lj_str_initbuf(&ls.sb);
+  status = lj_vm_cpcall(L, NULL, &ls, cpparser);
+  lj_lex_cleanup(L, &ls);
+  lj_gc_check(L);
+  return status;
+}
+
+LUA_API int lua_load(lua_State *L, lua_Reader reader, void *data,
+		     const char *chunkname)
+{
+  return lua_loadx(L, reader, data, chunkname, NULL);
+}
+
+typedef struct FileReaderCtx {
+  FILE *fp;
+  char buf[LUAL_BUFFERSIZE];
+} FileReaderCtx;
+
+static const char *reader_file(lua_State *L, void *ud, size_t *size)
+{
+  FileReaderCtx *ctx = (FileReaderCtx *)ud;
+  UNUSED(L);
+  if (feof(ctx->fp)) return NULL;
+  *size = fread(ctx->buf, 1, sizeof(ctx->buf), ctx->fp);
+  return *size > 0 ? ctx->buf : NULL;
+}
+
+LUALIB_API int luaL_loadfilex(lua_State *L, const char *filename,
+			      const char *mode)
+{
+  FileReaderCtx ctx;
+  int status;
+  const char *chunkname;
+  if (filename) {
+    ctx.fp = fopen(filename, "rb");
+    if (ctx.fp == NULL) {
+      lua_pushfstring(L, "cannot open %s: %s", filename, strerror(errno));
+      return LUA_ERRFILE;
+    }
+    chunkname = lua_pushfstring(L, "@%s", filename);
+  } else {
+    ctx.fp = stdin;
+    chunkname = "=stdin";
+  }
+  status = lua_loadx(L, reader_file, &ctx, chunkname, mode);
+  if (ferror(ctx.fp)) {
+    L->top -= filename ? 2 : 1;
+    lua_pushfstring(L, "cannot read %s: %s", chunkname+1, strerror(errno));
+    if (filename)
+      fclose(ctx.fp);
+    return LUA_ERRFILE;
+  }
+  if (filename) {
+    L->top--;
+    copyTV(L, L->top-1, L->top);
+    fclose(ctx.fp);
+  }
+  return status;
+}
+
+LUALIB_API int luaL_loadfile(lua_State *L, const char *filename)
+{
+  return luaL_loadfilex(L, filename, NULL);
+}
+
+typedef struct StringReaderCtx {
+  const char *str;
+  size_t size;
+} StringReaderCtx;
+
+static const char *reader_string(lua_State *L, void *ud, size_t *size)
+{
+  StringReaderCtx *ctx = (StringReaderCtx *)ud;
+  UNUSED(L);
+  if (ctx->size == 0) return NULL;
+  *size = ctx->size;
+  ctx->size = 0;
+  return ctx->str;
+}
+
+LUALIB_API int luaL_loadbufferx(lua_State *L, const char *buf, size_t size,
+				const char *name, const char *mode)
+{
+  StringReaderCtx ctx;
+  ctx.str = buf;
+  ctx.size = size;
+  return lua_loadx(L, reader_string, &ctx, name, mode);
+}
+
+LUALIB_API int luaL_loadbuffer(lua_State *L, const char *buf, size_t size,
+			       const char *name)
+{
+  return luaL_loadbufferx(L, buf, size, name, NULL);
+}
+
+LUALIB_API int luaL_loadstring(lua_State *L, const char *s)
+{
+  return luaL_loadbuffer(L, s, strlen(s), s);
+}
+
+/* -- Dump bytecode ------------------------------------------------------- */
+
+LUA_API int lua_dump(lua_State *L, lua_Writer writer, void *data)
+{
+  cTValue *o = L->top-1;
+  api_check(L, L->top > L->base);
+  if (tvisfunc(o) && isluafunc(funcV(o)))
+    return lj_bcwrite(L, funcproto(funcV(o)), writer, data, 0);
+  else
+    return 1;
+}
+
diff --git a/lib/luajit/src/lj_mcode.c b/lib/luajit/src/lj_mcode.c
new file mode 100644
index 00000000..5a732960
--- /dev/null
+++ b/lib/luajit/src/lj_mcode.c
@@ -0,0 +1,373 @@
+/*
+** Machine code management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_mcode_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#if LJ_HASJIT
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_jit.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#endif
+#if LJ_HASJIT || LJ_HASFFI
+#include "lj_vm.h"
+#endif
+
+/* -- OS-specific functions ----------------------------------------------- */
+
+#if LJ_HASJIT || LJ_HASFFI
+
+/* Define this if you want to run LuaJIT with Valgrind. */
+#ifdef LUAJIT_USE_VALGRIND
+#include <valgrind/valgrind.h>
+#endif
+
+#if LJ_TARGET_IOS
+void sys_icache_invalidate(void *start, size_t len);
+#endif
+
+/* Synchronize data/instruction cache. */
+void lj_mcode_sync(void *start, void *end)
+{
+#ifdef LUAJIT_USE_VALGRIND
+  VALGRIND_DISCARD_TRANSLATIONS(start, (char *)end-(char *)start);
+#endif
+#if LJ_TARGET_X86ORX64
+  UNUSED(start); UNUSED(end);
+#elif LJ_TARGET_IOS
+  sys_icache_invalidate(start, (char *)end-(char *)start);
+#elif LJ_TARGET_PPC
+  lj_vm_cachesync(start, end);
+#elif defined(__GNUC__)
+  __clear_cache(start, end);
+#else
+#error "Missing builtin to flush instruction cache"
+#endif
+}
+
+#endif
+
+#if LJ_HASJIT
+
+#if LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#define MCPROT_RW	PAGE_READWRITE
+#define MCPROT_RX	PAGE_EXECUTE_READ
+#define MCPROT_RWX	PAGE_EXECUTE_READWRITE
+
+static void *mcode_alloc_at(jit_State *J, uintptr_t hint, size_t sz, DWORD prot)
+{
+  void *p = VirtualAlloc((void *)hint, sz,
+			 MEM_RESERVE|MEM_COMMIT|MEM_TOP_DOWN, prot);
+  if (!p && !hint)
+    lj_trace_err(J, LJ_TRERR_MCODEAL);
+  return p;
+}
+
+static void mcode_free(jit_State *J, void *p, size_t sz)
+{
+  UNUSED(J); UNUSED(sz);
+  VirtualFree(p, 0, MEM_RELEASE);
+}
+
+static int mcode_setprot(void *p, size_t sz, DWORD prot)
+{
+  DWORD oprot;
+  return !VirtualProtect(p, sz, prot, &oprot);
+}
+
+#elif LJ_TARGET_POSIX
+
+#include <sys/mman.h>
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS	MAP_ANON
+#endif
+
+#define MCPROT_RW	(PROT_READ|PROT_WRITE)
+#define MCPROT_RX	(PROT_READ|PROT_EXEC)
+#define MCPROT_RWX	(PROT_READ|PROT_WRITE|PROT_EXEC)
+
+static void *mcode_alloc_at(jit_State *J, uintptr_t hint, size_t sz, int prot)
+{
+  void *p = mmap((void *)hint, sz, prot, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+  if (p == MAP_FAILED) {
+    if (!hint) lj_trace_err(J, LJ_TRERR_MCODEAL);
+    p = NULL;
+  }
+  return p;
+}
+
+static void mcode_free(jit_State *J, void *p, size_t sz)
+{
+  UNUSED(J);
+  munmap(p, sz);
+}
+
+static int mcode_setprot(void *p, size_t sz, int prot)
+{
+  return mprotect(p, sz, prot);
+}
+
+#elif LJ_64
+
+#error "Missing OS support for explicit placement of executable memory"
+
+#else
+
+/* Fallback allocator. This will fail if memory is not executable by default. */
+#define LUAJIT_UNPROTECT_MCODE
+#define MCPROT_RW	0
+#define MCPROT_RX	0
+#define MCPROT_RWX	0
+
+static void *mcode_alloc_at(jit_State *J, uintptr_t hint, size_t sz, int prot)
+{
+  UNUSED(hint); UNUSED(prot);
+  return lj_mem_new(J->L, sz);
+}
+
+static void mcode_free(jit_State *J, void *p, size_t sz)
+{
+  lj_mem_free(J2G(J), p, sz);
+}
+
+#endif
+
+/* -- MCode area protection ----------------------------------------------- */
+
+/* Define this ONLY if the page protection twiddling becomes a bottleneck. */
+#ifdef LUAJIT_UNPROTECT_MCODE
+
+/* It's generally considered to be a potential security risk to have
+** pages with simultaneous write *and* execute access in a process.
+**
+** Do not even think about using this mode for server processes or
+** apps handling untrusted external data (such as a browser).
+**
+** The security risk is not in LuaJIT itself -- but if an adversary finds
+** any *other* flaw in your C application logic, then any RWX memory page
+** simplifies writing an exploit considerably.
+*/
+#define MCPROT_GEN	MCPROT_RWX
+#define MCPROT_RUN	MCPROT_RWX
+
+static void mcode_protect(jit_State *J, int prot)
+{
+  UNUSED(J); UNUSED(prot);
+}
+
+#else
+
+/* This is the default behaviour and much safer:
+**
+** Most of the time the memory pages holding machine code are executable,
+** but NONE of them is writable.
+**
+** The current memory area is marked read-write (but NOT executable) only
+** during the short time window while the assembler generates machine code.
+*/
+#define MCPROT_GEN	MCPROT_RW
+#define MCPROT_RUN	MCPROT_RX
+
+/* Protection twiddling failed. Probably due to kernel security. */
+static LJ_NOINLINE void mcode_protfail(jit_State *J)
+{
+  lua_CFunction panic = J2G(J)->panic;
+  if (panic) {
+    lua_State *L = J->L;
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_JITPROT));
+    panic(L);
+  }
+}
+
+/* Change protection of MCode area. */
+static void mcode_protect(jit_State *J, int prot)
+{
+  if (J->mcprot != prot) {
+    if (LJ_UNLIKELY(mcode_setprot(J->mcarea, J->szmcarea, prot)))
+      mcode_protfail(J);
+    J->mcprot = prot;
+  }
+}
+
+#endif
+
+/* -- MCode area allocation ----------------------------------------------- */
+
+#if LJ_TARGET_X64
+#define mcode_validptr(p)	((p) && (uintptr_t)(p) < (uintptr_t)1<<47)
+#else
+#define mcode_validptr(p)	((p) && (uintptr_t)(p) < 0xffff0000)
+#endif
+
+#ifdef LJ_TARGET_JUMPRANGE
+
+/* Get memory within relative jump distance of our code in 64 bit mode. */
+static void *mcode_alloc(jit_State *J, size_t sz)
+{
+  /* Target an address in the static assembler code (64K aligned).
+  ** Try addresses within a distance of target-range/2+1MB..target+range/2-1MB.
+  ** Use half the jump range so every address in the range can reach any other.
+  */
+#if LJ_TARGET_MIPS
+  /* Use the middle of the 256MB-aligned region. */
+  uintptr_t target = ((uintptr_t)(void *)lj_vm_exit_handler & 0xf0000000u) +
+		     0x08000000u;
+#else
+  uintptr_t target = (uintptr_t)(void *)lj_vm_exit_handler & ~(uintptr_t)0xffff;
+#endif
+  const uintptr_t range = (1u << (LJ_TARGET_JUMPRANGE-1)) - (1u << 21);
+  /* First try a contiguous area below the last one. */
+  uintptr_t hint = J->mcarea ? (uintptr_t)J->mcarea - sz : 0;
+  int i;
+  for (i = 0; i < 32; i++) {  /* 32 attempts ought to be enough ... */
+    if (mcode_validptr(hint)) {
+      void *p = mcode_alloc_at(J, hint, sz, MCPROT_GEN);
+
+      if (mcode_validptr(p) &&
+	  ((uintptr_t)p + sz - target < range || target - (uintptr_t)p < range))
+	return p;
+      if (p) mcode_free(J, p, sz);  /* Free badly placed area. */
+    }
+    /* Next try probing pseudo-random addresses. */
+    do {
+      hint = (0x78fb ^ LJ_PRNG_BITS(J, 15)) << 16;  /* 64K aligned. */
+    } while (!(hint + sz < range));
+    hint = target + hint - (range>>1);
+  }
+  lj_trace_err(J, LJ_TRERR_MCODEAL);  /* Give up. OS probably ignores hints? */
+  return NULL;
+}
+
+#else
+
+/* All memory addresses are reachable by relative jumps. */
+#define mcode_alloc(J, sz)	mcode_alloc_at((J), 0, (sz), MCPROT_GEN)
+
+#endif
+
+/* -- MCode area management ----------------------------------------------- */
+
+/* Linked list of MCode areas. */
+typedef struct MCLink {
+  MCode *next;		/* Next area. */
+  size_t size;		/* Size of current area. */
+} MCLink;
+
+/* Allocate a new MCode area. */
+static void mcode_allocarea(jit_State *J)
+{
+  MCode *oldarea = J->mcarea;
+  size_t sz = (size_t)J->param[JIT_P_sizemcode] << 10;
+  sz = (sz + LJ_PAGESIZE-1) & ~(size_t)(LJ_PAGESIZE - 1);
+  J->mcarea = (MCode *)mcode_alloc(J, sz);
+  J->szmcarea = sz;
+  J->mcprot = MCPROT_GEN;
+  J->mctop = (MCode *)((char *)J->mcarea + J->szmcarea);
+  J->mcbot = (MCode *)((char *)J->mcarea + sizeof(MCLink));
+  ((MCLink *)J->mcarea)->next = oldarea;
+  ((MCLink *)J->mcarea)->size = sz;
+  J->szallmcarea += sz;
+}
+
+/* Free all MCode areas. */
+void lj_mcode_free(jit_State *J)
+{
+  MCode *mc = J->mcarea;
+  J->mcarea = NULL;
+  J->szallmcarea = 0;
+  while (mc) {
+    MCode *next = ((MCLink *)mc)->next;
+    mcode_free(J, mc, ((MCLink *)mc)->size);
+    mc = next;
+  }
+}
+
+/* -- MCode transactions -------------------------------------------------- */
+
+/* Reserve the remainder of the current MCode area. */
+MCode *lj_mcode_reserve(jit_State *J, MCode **lim)
+{
+  if (!J->mcarea)
+    mcode_allocarea(J);
+  else
+    mcode_protect(J, MCPROT_GEN);
+  *lim = J->mcbot;
+  return J->mctop;
+}
+
+/* Commit the top part of the current MCode area. */
+void lj_mcode_commit(jit_State *J, MCode *top)
+{
+  J->mctop = top;
+  mcode_protect(J, MCPROT_RUN);
+}
+
+/* Abort the reservation. */
+void lj_mcode_abort(jit_State *J)
+{
+  if (J->mcarea)
+    mcode_protect(J, MCPROT_RUN);
+}
+
+/* Set/reset protection to allow patching of MCode areas. */
+MCode *lj_mcode_patch(jit_State *J, MCode *ptr, int finish)
+{
+#ifdef LUAJIT_UNPROTECT_MCODE
+  UNUSED(J); UNUSED(ptr); UNUSED(finish);
+  return NULL;
+#else
+  if (finish) {
+    if (J->mcarea == ptr)
+      mcode_protect(J, MCPROT_RUN);
+    else if (LJ_UNLIKELY(mcode_setprot(ptr, ((MCLink *)ptr)->size, MCPROT_RUN)))
+      mcode_protfail(J);
+    return NULL;
+  } else {
+    MCode *mc = J->mcarea;
+    /* Try current area first to use the protection cache. */
+    if (ptr >= mc && ptr < (MCode *)((char *)mc + J->szmcarea)) {
+      mcode_protect(J, MCPROT_GEN);
+      return mc;
+    }
+    /* Otherwise search through the list of MCode areas. */
+    for (;;) {
+      mc = ((MCLink *)mc)->next;
+      lua_assert(mc != NULL);
+      if (ptr >= mc && ptr < (MCode *)((char *)mc + ((MCLink *)mc)->size)) {
+	if (LJ_UNLIKELY(mcode_setprot(mc, ((MCLink *)mc)->size, MCPROT_GEN)))
+	  mcode_protfail(J);
+	return mc;
+      }
+    }
+  }
+#endif
+}
+
+/* Limit of MCode reservation reached. */
+void lj_mcode_limiterr(jit_State *J, size_t need)
+{
+  size_t sizemcode, maxmcode;
+  lj_mcode_abort(J);
+  sizemcode = (size_t)J->param[JIT_P_sizemcode] << 10;
+  sizemcode = (sizemcode + LJ_PAGESIZE-1) & ~(size_t)(LJ_PAGESIZE - 1);
+  maxmcode = (size_t)J->param[JIT_P_maxmcode] << 10;
+  if ((size_t)need > sizemcode)
+    lj_trace_err(J, LJ_TRERR_MCODEOV);  /* Too long for any area. */
+  if (J->szallmcarea + sizemcode > maxmcode)
+    lj_trace_err(J, LJ_TRERR_MCODEAL);
+  mcode_allocarea(J);
+  lj_trace_err(J, LJ_TRERR_MCODELM);  /* Retry with new area. */
+}
+
+#endif
diff --git a/lib/luajit/src/lj_mcode.h b/lib/luajit/src/lj_mcode.h
new file mode 100644
index 00000000..89344fc7
--- /dev/null
+++ b/lib/luajit/src/lj_mcode.h
@@ -0,0 +1,30 @@
+/*
+** Machine code management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_MCODE_H
+#define _LJ_MCODE_H
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT || LJ_HASFFI
+LJ_FUNC void lj_mcode_sync(void *start, void *end);
+#endif
+
+#if LJ_HASJIT
+
+#include "lj_jit.h"
+
+LJ_FUNC void lj_mcode_free(jit_State *J);
+LJ_FUNC MCode *lj_mcode_reserve(jit_State *J, MCode **lim);
+LJ_FUNC void lj_mcode_commit(jit_State *J, MCode *m);
+LJ_FUNC void lj_mcode_abort(jit_State *J);
+LJ_FUNC MCode *lj_mcode_patch(jit_State *J, MCode *ptr, int finish);
+LJ_FUNC_NORET void lj_mcode_limiterr(jit_State *J, size_t need);
+
+#define lj_mcode_commitbot(J, m)	(J->mcbot = (m))
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_meta.c b/lib/luajit/src/lj_meta.c
new file mode 100644
index 00000000..0a526671
--- /dev/null
+++ b/lib/luajit/src/lj_meta.c
@@ -0,0 +1,466 @@
+/*
+** Metamethod handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_meta_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+
+/* -- Metamethod handling ------------------------------------------------- */
+
+/* String interning of metamethod names for fast indexing. */
+void lj_meta_init(lua_State *L)
+{
+#define MMNAME(name)	"__" #name
+  const char *metanames = MMDEF(MMNAME);
+#undef MMNAME
+  global_State *g = G(L);
+  const char *p, *q;
+  uint32_t mm;
+  for (mm = 0, p = metanames; *p; mm++, p = q) {
+    GCstr *s;
+    for (q = p+2; *q && *q != '_'; q++) ;
+    s = lj_str_new(L, p, (size_t)(q-p));
+    /* NOBARRIER: g->gcroot[] is a GC root. */
+    setgcref(g->gcroot[GCROOT_MMNAME+mm], obj2gco(s));
+  }
+}
+
+/* Negative caching of a few fast metamethods. See the lj_meta_fast() macro. */
+cTValue *lj_meta_cache(GCtab *mt, MMS mm, GCstr *name)
+{
+  cTValue *mo = lj_tab_getstr(mt, name);
+  lua_assert(mm <= MM_FAST);
+  if (!mo || tvisnil(mo)) {  /* No metamethod? */
+    mt->nomm |= (uint8_t)(1u<<mm);  /* Set negative cache flag. */
+    return NULL;
+  }
+  return mo;
+}
+
+/* Lookup metamethod for object. */
+cTValue *lj_meta_lookup(lua_State *L, cTValue *o, MMS mm)
+{
+  GCtab *mt;
+  if (tvistab(o))
+    mt = tabref(tabV(o)->metatable);
+  else if (tvisudata(o))
+    mt = tabref(udataV(o)->metatable);
+  else
+    mt = tabref(basemt_obj(G(L), o));
+  if (mt) {
+    cTValue *mo = lj_tab_getstr(mt, mmname_str(G(L), mm));
+    if (mo)
+      return mo;
+  }
+  return niltv(L);
+}
+
+#if LJ_HASFFI
+/* Tailcall from C function. */
+int lj_meta_tailcall(lua_State *L, cTValue *tv)
+{
+  TValue *base = L->base;
+  TValue *top = L->top;
+  const BCIns *pc = frame_pc(base-1);  /* Preserve old PC from frame. */
+  copyTV(L, base-1, tv);  /* Replace frame with new object. */
+  top->u32.lo = LJ_CONT_TAILCALL;
+  setframe_pc(top, pc);
+  setframe_gc(top+1, obj2gco(L));  /* Dummy frame object. */
+  setframe_ftsz(top+1, (int)((char *)(top+2) - (char *)base) + FRAME_CONT);
+  L->base = L->top = top+2;
+  /*
+  ** before:   [old_mo|PC]    [... ...]
+  **                         ^base     ^top
+  ** after:    [new_mo|itype] [... ...] [NULL|PC] [dummy|delta]
+  **                                                           ^base/top
+  ** tailcall: [new_mo|PC]    [... ...]
+  **                         ^base     ^top
+  */
+  return 0;
+}
+#endif
+
+/* Setup call to metamethod to be run by Assembler VM. */
+static TValue *mmcall(lua_State *L, ASMFunction cont, cTValue *mo,
+		    cTValue *a, cTValue *b)
+{
+  /*
+  **           |-- framesize -> top       top+1       top+2 top+3
+  ** before:   [func slots ...]
+  ** mm setup: [func slots ...] [cont|?]  [mo|tmtype] [a]   [b]
+  ** in asm:   [func slots ...] [cont|PC] [mo|delta]  [a]   [b]
+  **           ^-- func base                          ^-- mm base
+  ** after mm: [func slots ...]           [result]
+  **                ^-- copy to base[PC_RA] --/     for lj_cont_ra
+  **                          istruecond + branch   for lj_cont_cond*
+  **                                       ignore   for lj_cont_nop
+  ** next PC:  [func slots ...]
+  */
+  TValue *top = L->top;
+  if (curr_funcisL(L)) top = curr_topL(L);
+  setcont(top, cont);  /* Assembler VM stores PC in upper word. */
+  copyTV(L, top+1, mo);  /* Store metamethod and two arguments. */
+  copyTV(L, top+2, a);
+  copyTV(L, top+3, b);
+  return top+2;  /* Return new base. */
+}
+
+/* -- C helpers for some instructions, called from assembler VM ----------- */
+
+/* Helper for TGET*. __index chain and metamethod. */
+cTValue *lj_meta_tget(lua_State *L, cTValue *o, cTValue *k)
+{
+  int loop;
+  for (loop = 0; loop < LJ_MAX_IDXCHAIN; loop++) {
+    cTValue *mo;
+    if (LJ_LIKELY(tvistab(o))) {
+      GCtab *t = tabV(o);
+      cTValue *tv = lj_tab_get(L, t, k);
+      if (!tvisnil(tv) ||
+	  !(mo = lj_meta_fast(L, tabref(t->metatable), MM_index)))
+	return tv;
+    } else if (tvisnil(mo = lj_meta_lookup(L, o, MM_index))) {
+      lj_err_optype(L, o, LJ_ERR_OPINDEX);
+      return NULL;  /* unreachable */
+    }
+    if (tvisfunc(mo)) {
+      L->top = mmcall(L, lj_cont_ra, mo, o, k);
+      return NULL;  /* Trigger metamethod call. */
+    }
+    o = mo;
+  }
+  lj_err_msg(L, LJ_ERR_GETLOOP);
+  return NULL;  /* unreachable */
+}
+
+/* Helper for TSET*. __newindex chain and metamethod. */
+TValue *lj_meta_tset(lua_State *L, cTValue *o, cTValue *k)
+{
+  TValue tmp;
+  int loop;
+  for (loop = 0; loop < LJ_MAX_IDXCHAIN; loop++) {
+    cTValue *mo;
+    if (LJ_LIKELY(tvistab(o))) {
+      GCtab *t = tabV(o);
+      cTValue *tv = lj_tab_get(L, t, k);
+      if (LJ_LIKELY(!tvisnil(tv))) {
+	t->nomm = 0;  /* Invalidate negative metamethod cache. */
+	lj_gc_anybarriert(L, t);
+	return (TValue *)tv;
+      } else if (!(mo = lj_meta_fast(L, tabref(t->metatable), MM_newindex))) {
+	t->nomm = 0;  /* Invalidate negative metamethod cache. */
+	lj_gc_anybarriert(L, t);
+	if (tv != niltv(L))
+	  return (TValue *)tv;
+	if (tvisnil(k)) lj_err_msg(L, LJ_ERR_NILIDX);
+	else if (tvisint(k)) { setnumV(&tmp, (lua_Number)intV(k)); k = &tmp; }
+	else if (tvisnum(k) && tvisnan(k)) lj_err_msg(L, LJ_ERR_NANIDX);
+	return lj_tab_newkey(L, t, k);
+      }
+    } else if (tvisnil(mo = lj_meta_lookup(L, o, MM_newindex))) {
+      lj_err_optype(L, o, LJ_ERR_OPINDEX);
+      return NULL;  /* unreachable */
+    }
+    if (tvisfunc(mo)) {
+      L->top = mmcall(L, lj_cont_nop, mo, o, k);
+      /* L->top+2 = v filled in by caller. */
+      return NULL;  /* Trigger metamethod call. */
+    }
+    copyTV(L, &tmp, mo);
+    o = &tmp;
+  }
+  lj_err_msg(L, LJ_ERR_SETLOOP);
+  return NULL;  /* unreachable */
+}
+
+static cTValue *str2num(cTValue *o, TValue *n)
+{
+  if (tvisnum(o))
+    return o;
+  else if (tvisint(o))
+    return (setnumV(n, (lua_Number)intV(o)), n);
+  else if (tvisstr(o) && lj_strscan_num(strV(o), n))
+    return n;
+  else
+    return NULL;
+}
+
+/* Helper for arithmetic instructions. Coercion, metamethod. */
+TValue *lj_meta_arith(lua_State *L, TValue *ra, cTValue *rb, cTValue *rc,
+		      BCReg op)
+{
+  MMS mm = bcmode_mm(op);
+  TValue tempb, tempc;
+  cTValue *b, *c;
+  if ((b = str2num(rb, &tempb)) != NULL &&
+      (c = str2num(rc, &tempc)) != NULL) {  /* Try coercion first. */
+    setnumV(ra, lj_vm_foldarith(numV(b), numV(c), (int)mm-MM_add));
+    return NULL;
+  } else {
+    cTValue *mo = lj_meta_lookup(L, rb, mm);
+    if (tvisnil(mo)) {
+      mo = lj_meta_lookup(L, rc, mm);
+      if (tvisnil(mo)) {
+	if (str2num(rb, &tempb) == NULL) rc = rb;
+	lj_err_optype(L, rc, LJ_ERR_OPARITH);
+	return NULL;  /* unreachable */
+      }
+    }
+    return mmcall(L, lj_cont_ra, mo, rb, rc);
+  }
+}
+
+/* In-place coercion of a number to a string. */
+static LJ_AINLINE int tostring(lua_State *L, TValue *o)
+{
+  if (tvisstr(o)) {
+    return 1;
+  } else if (tvisnumber(o)) {
+    setstrV(L, o, lj_str_fromnumber(L, o));
+    return 1;
+  } else {
+    return 0;
+  }
+}
+
+/* Helper for CAT. Coercion, iterative concat, __concat metamethod. */
+TValue *lj_meta_cat(lua_State *L, TValue *top, int left)
+{
+  int fromc = 0;
+  if (left < 0) { left = -left; fromc = 1; }
+  do {
+    int n = 1;
+    if (!(tvisstr(top-1) || tvisnumber(top-1)) || !tostring(L, top)) {
+      cTValue *mo = lj_meta_lookup(L, top-1, MM_concat);
+      if (tvisnil(mo)) {
+	mo = lj_meta_lookup(L, top, MM_concat);
+	if (tvisnil(mo)) {
+	  if (tvisstr(top-1) || tvisnumber(top-1)) top++;
+	  lj_err_optype(L, top-1, LJ_ERR_OPCAT);
+	  return NULL;  /* unreachable */
+	}
+      }
+      /* One of the top two elements is not a string, call __cat metamethod:
+      **
+      ** before:    [...][CAT stack .........................]
+      **                                 top-1     top         top+1 top+2
+      ** pick two:  [...][CAT stack ...] [o1]      [o2]
+      ** setup mm:  [...][CAT stack ...] [cont|?]  [mo|tmtype] [o1]  [o2]
+      ** in asm:    [...][CAT stack ...] [cont|PC] [mo|delta]  [o1]  [o2]
+      **            ^-- func base                              ^-- mm base
+      ** after mm:  [...][CAT stack ...] <--push-- [result]
+      ** next step: [...][CAT stack .............]
+      */
+      copyTV(L, top+2, top);  /* Careful with the order of stack copies! */
+      copyTV(L, top+1, top-1);
+      copyTV(L, top, mo);
+      setcont(top-1, lj_cont_cat);
+      return top+1;  /* Trigger metamethod call. */
+    } else if (strV(top)->len == 0) {  /* Shortcut. */
+      (void)tostring(L, top-1);
+    } else {
+      /* Pick as many strings as possible from the top and concatenate them:
+      **
+      ** before:    [...][CAT stack ...........................]
+      ** pick str:  [...][CAT stack ...] [...... strings ......]
+      ** concat:    [...][CAT stack ...] [result]
+      ** next step: [...][CAT stack ............]
+      */
+      MSize tlen = strV(top)->len;
+      char *buffer;
+      int i;
+      for (n = 1; n <= left && tostring(L, top-n); n++) {
+	MSize len = strV(top-n)->len;
+	if (len >= LJ_MAX_STR - tlen)
+	  lj_err_msg(L, LJ_ERR_STROV);
+	tlen += len;
+      }
+      buffer = lj_str_needbuf(L, &G(L)->tmpbuf, tlen);
+      n--;
+      tlen = 0;
+      for (i = n; i >= 0; i--) {
+	MSize len = strV(top-i)->len;
+	memcpy(buffer + tlen, strVdata(top-i), len);
+	tlen += len;
+      }
+      setstrV(L, top-n, lj_str_new(L, buffer, tlen));
+    }
+    left -= n;
+    top -= n;
+  } while (left >= 1);
+  if (LJ_UNLIKELY(G(L)->gc.total >= G(L)->gc.threshold)) {
+    if (!fromc) L->top = curr_topL(L);
+    lj_gc_step(L);
+  }
+  return NULL;
+}
+
+/* Helper for LEN. __len metamethod. */
+TValue * LJ_FASTCALL lj_meta_len(lua_State *L, cTValue *o)
+{
+  cTValue *mo = lj_meta_lookup(L, o, MM_len);
+  if (tvisnil(mo)) {
+    if (LJ_52 && tvistab(o))
+      tabref(tabV(o)->metatable)->nomm |= (uint8_t)(1u<<MM_len);
+    else
+      lj_err_optype(L, o, LJ_ERR_OPLEN);
+    return NULL;
+  }
+  return mmcall(L, lj_cont_ra, mo, o, LJ_52 ? o : niltv(L));
+}
+
+/* Helper for equality comparisons. __eq metamethod. */
+TValue *lj_meta_equal(lua_State *L, GCobj *o1, GCobj *o2, int ne)
+{
+  /* Field metatable must be at same offset for GCtab and GCudata! */
+  cTValue *mo = lj_meta_fast(L, tabref(o1->gch.metatable), MM_eq);
+  if (mo) {
+    TValue *top;
+    uint32_t it;
+    if (tabref(o1->gch.metatable) != tabref(o2->gch.metatable)) {
+      cTValue *mo2 = lj_meta_fast(L, tabref(o2->gch.metatable), MM_eq);
+      if (mo2 == NULL || !lj_obj_equal(mo, mo2))
+	return (TValue *)(intptr_t)ne;
+    }
+    top = curr_top(L);
+    setcont(top, ne ? lj_cont_condf : lj_cont_condt);
+    copyTV(L, top+1, mo);
+    it = ~(uint32_t)o1->gch.gct;
+    setgcV(L, top+2, o1, it);
+    setgcV(L, top+3, o2, it);
+    return top+2;  /* Trigger metamethod call. */
+  }
+  return (TValue *)(intptr_t)ne;
+}
+
+#if LJ_HASFFI
+TValue * LJ_FASTCALL lj_meta_equal_cd(lua_State *L, BCIns ins)
+{
+  ASMFunction cont = (bc_op(ins) & 1) ? lj_cont_condf : lj_cont_condt;
+  int op = (int)bc_op(ins) & ~1;
+  TValue tv;
+  cTValue *mo, *o2, *o1 = &L->base[bc_a(ins)];
+  cTValue *o1mm = o1;
+  if (op == BC_ISEQV) {
+    o2 = &L->base[bc_d(ins)];
+    if (!tviscdata(o1mm)) o1mm = o2;
+  } else if (op == BC_ISEQS) {
+    setstrV(L, &tv, gco2str(proto_kgc(curr_proto(L), ~(ptrdiff_t)bc_d(ins))));
+    o2 = &tv;
+  } else if (op == BC_ISEQN) {
+    o2 = &mref(curr_proto(L)->k, cTValue)[bc_d(ins)];
+  } else {
+    lua_assert(op == BC_ISEQP);
+    setitype(&tv, ~bc_d(ins));
+    o2 = &tv;
+  }
+  mo = lj_meta_lookup(L, o1mm, MM_eq);
+  if (LJ_LIKELY(!tvisnil(mo)))
+    return mmcall(L, cont, mo, o1, o2);
+  else
+    return (TValue *)(intptr_t)(bc_op(ins) & 1);
+}
+#endif
+
+/* Helper for ordered comparisons. String compare, __lt/__le metamethods. */
+TValue *lj_meta_comp(lua_State *L, cTValue *o1, cTValue *o2, int op)
+{
+  if (LJ_HASFFI && (tviscdata(o1) || tviscdata(o2))) {
+    ASMFunction cont = (op & 1) ? lj_cont_condf : lj_cont_condt;
+    MMS mm = (op & 2) ? MM_le : MM_lt;
+    cTValue *mo = lj_meta_lookup(L, tviscdata(o1) ? o1 : o2, mm);
+    if (LJ_UNLIKELY(tvisnil(mo))) goto err;
+    return mmcall(L, cont, mo, o1, o2);
+  } else if (LJ_52 || itype(o1) == itype(o2)) {
+    /* Never called with two numbers. */
+    if (tvisstr(o1) && tvisstr(o2)) {
+      int32_t res = lj_str_cmp(strV(o1), strV(o2));
+      return (TValue *)(intptr_t)(((op&2) ? res <= 0 : res < 0) ^ (op&1));
+    } else {
+    trymt:
+      while (1) {
+	ASMFunction cont = (op & 1) ? lj_cont_condf : lj_cont_condt;
+	MMS mm = (op & 2) ? MM_le : MM_lt;
+	cTValue *mo = lj_meta_lookup(L, o1, mm);
+#if LJ_52
+	if (tvisnil(mo) && tvisnil((mo = lj_meta_lookup(L, o2, mm))))
+#else
+	cTValue *mo2 = lj_meta_lookup(L, o2, mm);
+	if (tvisnil(mo) || !lj_obj_equal(mo, mo2))
+#endif
+	{
+	  if (op & 2) {  /* MM_le not found: retry with MM_lt. */
+	    cTValue *ot = o1; o1 = o2; o2 = ot;  /* Swap operands. */
+	    op ^= 3;  /* Use LT and flip condition. */
+	    continue;
+	  }
+	  goto err;
+	}
+	return mmcall(L, cont, mo, o1, o2);
+      }
+    }
+  } else if (tvisbool(o1) && tvisbool(o2)) {
+    goto trymt;
+  } else {
+  err:
+    lj_err_comp(L, o1, o2);
+    return NULL;
+  }
+}
+
+/* Helper for calls. __call metamethod. */
+void lj_meta_call(lua_State *L, TValue *func, TValue *top)
+{
+  cTValue *mo = lj_meta_lookup(L, func, MM_call);
+  TValue *p;
+  if (!tvisfunc(mo))
+    lj_err_optype_call(L, func);
+  for (p = top; p > func; p--) copyTV(L, p, p-1);
+  copyTV(L, func, mo);
+}
+
+/* Helper for FORI. Coercion. */
+void LJ_FASTCALL lj_meta_for(lua_State *L, TValue *o)
+{
+  if (!lj_strscan_numberobj(o)) lj_err_msg(L, LJ_ERR_FORINIT);
+  if (!lj_strscan_numberobj(o+1)) lj_err_msg(L, LJ_ERR_FORLIM);
+  if (!lj_strscan_numberobj(o+2)) lj_err_msg(L, LJ_ERR_FORSTEP);
+  if (LJ_DUALNUM) {
+    /* Ensure all slots are integers or all slots are numbers. */
+    int32_t k[3];
+    int nint = 0;
+    ptrdiff_t i;
+    for (i = 0; i <= 2; i++) {
+      if (tvisint(o+i)) {
+	k[i] = intV(o+i); nint++;
+      } else {
+	k[i] = lj_num2int(numV(o+i)); nint += ((lua_Number)k[i] == numV(o+i));
+      }
+    }
+    if (nint == 3) {  /* Narrow to integers. */
+      setintV(o, k[0]);
+      setintV(o+1, k[1]);
+      setintV(o+2, k[2]);
+    } else if (nint != 0) {  /* Widen to numbers. */
+      if (tvisint(o)) setnumV(o, (lua_Number)intV(o));
+      if (tvisint(o+1)) setnumV(o+1, (lua_Number)intV(o+1));
+      if (tvisint(o+2)) setnumV(o+2, (lua_Number)intV(o+2));
+    }
+  }
+}
+
diff --git a/lib/luajit/src/lj_meta.h b/lib/luajit/src/lj_meta.h
new file mode 100644
index 00000000..8d7c2cd4
--- /dev/null
+++ b/lib/luajit/src/lj_meta.h
@@ -0,0 +1,37 @@
+/*
+** Metamethod handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_META_H
+#define _LJ_META_H
+
+#include "lj_obj.h"
+
+/* Metamethod handling */
+LJ_FUNC void lj_meta_init(lua_State *L);
+LJ_FUNC cTValue *lj_meta_cache(GCtab *mt, MMS mm, GCstr *name);
+LJ_FUNC cTValue *lj_meta_lookup(lua_State *L, cTValue *o, MMS mm);
+#if LJ_HASFFI
+LJ_FUNC int lj_meta_tailcall(lua_State *L, cTValue *tv);
+#endif
+
+#define lj_meta_fastg(g, mt, mm) \
+  ((mt) == NULL ? NULL : ((mt)->nomm & (1u<<(mm))) ? NULL : \
+   lj_meta_cache(mt, mm, mmname_str(g, mm)))
+#define lj_meta_fast(L, mt, mm)	lj_meta_fastg(G(L), mt, mm)
+
+/* C helpers for some instructions, called from assembler VM. */
+LJ_FUNCA cTValue *lj_meta_tget(lua_State *L, cTValue *o, cTValue *k);
+LJ_FUNCA TValue *lj_meta_tset(lua_State *L, cTValue *o, cTValue *k);
+LJ_FUNCA TValue *lj_meta_arith(lua_State *L, TValue *ra, cTValue *rb,
+			       cTValue *rc, BCReg op);
+LJ_FUNCA TValue *lj_meta_cat(lua_State *L, TValue *top, int left);
+LJ_FUNCA TValue * LJ_FASTCALL lj_meta_len(lua_State *L, cTValue *o);
+LJ_FUNCA TValue *lj_meta_equal(lua_State *L, GCobj *o1, GCobj *o2, int ne);
+LJ_FUNCA TValue * LJ_FASTCALL lj_meta_equal_cd(lua_State *L, BCIns ins);
+LJ_FUNCA TValue *lj_meta_comp(lua_State *L, cTValue *o1, cTValue *o2, int op);
+LJ_FUNCA void lj_meta_call(lua_State *L, TValue *func, TValue *top);
+LJ_FUNCA void LJ_FASTCALL lj_meta_for(lua_State *L, TValue *o);
+
+#endif
diff --git a/lib/luajit/src/lj_obj.c b/lib/luajit/src/lj_obj.c
new file mode 100644
index 00000000..c7f3bc12
--- /dev/null
+++ b/lib/luajit/src/lj_obj.c
@@ -0,0 +1,35 @@
+/*
+** Miscellaneous object handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_obj_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+/* Object type names. */
+LJ_DATADEF const char *const lj_obj_typename[] = {  /* ORDER LUA_T */
+  "no value", "nil", "boolean", "userdata", "number", "string",
+  "table", "function", "userdata", "thread", "proto", "cdata"
+};
+
+LJ_DATADEF const char *const lj_obj_itypename[] = {  /* ORDER LJ_T */
+  "nil", "boolean", "boolean", "userdata", "string", "upval", "thread",
+  "proto", "function", "trace", "cdata", "table", "userdata", "number"
+};
+
+/* Compare two objects without calling metamethods. */
+int lj_obj_equal(cTValue *o1, cTValue *o2)
+{
+  if (itype(o1) == itype(o2)) {
+    if (tvispri(o1))
+      return 1;
+    if (!tvisnum(o1))
+      return gcrefeq(o1->gcr, o2->gcr);
+  } else if (!tvisnumber(o1) || !tvisnumber(o2)) {
+    return 0;
+  }
+  return numberVnum(o1) == numberVnum(o2);
+}
+
diff --git a/lib/luajit/src/lj_obj.h b/lib/luajit/src/lj_obj.h
new file mode 100644
index 00000000..cc999aa4
--- /dev/null
+++ b/lib/luajit/src/lj_obj.h
@@ -0,0 +1,856 @@
+/*
+** LuaJIT VM tags, values and objects.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#ifndef _LJ_OBJ_H
+#define _LJ_OBJ_H
+
+#include "lua.h"
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* -- Memory references (32 bit address space) ---------------------------- */
+
+/* Memory size. */
+typedef uint32_t MSize;
+
+/* Memory reference */
+typedef struct MRef {
+  uint32_t ptr32;	/* Pseudo 32 bit pointer. */
+} MRef;
+
+#define mref(r, t)	((t *)(void *)(uintptr_t)(r).ptr32)
+
+#define setmref(r, p)	((r).ptr32 = (uint32_t)(uintptr_t)(void *)(p))
+#define setmrefr(r, v)	((r).ptr32 = (v).ptr32)
+
+/* -- GC object references (32 bit address space) ------------------------- */
+
+/* GCobj reference */
+typedef struct GCRef {
+  uint32_t gcptr32;	/* Pseudo 32 bit pointer. */
+} GCRef;
+
+/* Common GC header for all collectable objects. */
+#define GCHeader	GCRef nextgc; uint8_t marked; uint8_t gct
+/* This occupies 6 bytes, so use the next 2 bytes for non-32 bit fields. */
+
+#define gcref(r)	((GCobj *)(uintptr_t)(r).gcptr32)
+#define gcrefp(r, t)	((t *)(void *)(uintptr_t)(r).gcptr32)
+#define gcrefu(r)	((r).gcptr32)
+#define gcrefi(r)	((int32_t)(r).gcptr32)
+#define gcrefeq(r1, r2)	((r1).gcptr32 == (r2).gcptr32)
+#define gcnext(gc)	(gcref((gc)->gch.nextgc))
+
+#define setgcref(r, gc)	((r).gcptr32 = (uint32_t)(uintptr_t)&(gc)->gch)
+#define setgcrefi(r, i)	((r).gcptr32 = (uint32_t)(i))
+#define setgcrefp(r, p)	((r).gcptr32 = (uint32_t)(uintptr_t)(p))
+#define setgcrefnull(r)	((r).gcptr32 = 0)
+#define setgcrefr(r, v)	((r).gcptr32 = (v).gcptr32)
+
+/* IMPORTANT NOTE:
+**
+** All uses of the setgcref* macros MUST be accompanied with a write barrier.
+**
+** This is to ensure the integrity of the incremental GC. The invariant
+** to preserve is that a black object never points to a white object.
+** I.e. never store a white object into a field of a black object.
+**
+** It's ok to LEAVE OUT the write barrier ONLY in the following cases:
+** - The source is not a GC object (NULL).
+** - The target is a GC root. I.e. everything in global_State.
+** - The target is a lua_State field (threads are never black).
+** - The target is a stack slot, see setgcV et al.
+** - The target is an open upvalue, i.e. pointing to a stack slot.
+** - The target is a newly created object (i.e. marked white). But make
+**   sure nothing invokes the GC inbetween.
+** - The target and the source are the same object (self-reference).
+** - The target already contains the object (e.g. moving elements around).
+**
+** The most common case is a store to a stack slot. All other cases where
+** a barrier has been omitted are annotated with a NOBARRIER comment.
+**
+** The same logic applies for stores to table slots (array part or hash
+** part). ALL uses of lj_tab_set* require a barrier for the stored value
+** *and* the stored key, based on the above rules. In practice this means
+** a barrier is needed if *either* of the key or value are a GC object.
+**
+** It's ok to LEAVE OUT the write barrier in the following special cases:
+** - The stored value is nil. The key doesn't matter because it's either
+**   not resurrected or lj_tab_newkey() will take care of the key barrier.
+** - The key doesn't matter if the *previously* stored value is guaranteed
+**   to be non-nil (because the key is kept alive in the table).
+** - The key doesn't matter if it's guaranteed not to be part of the table,
+**   since lj_tab_newkey() takes care of the key barrier. This applies
+**   trivially to new tables, but watch out for resurrected keys. Storing
+**   a nil value leaves the key in the table!
+**
+** In case of doubt use lj_gc_anybarriert() as it's rather cheap. It's used
+** by the interpreter for all table stores.
+**
+** Note: In contrast to Lua's GC, LuaJIT's GC does *not* specially mark
+** dead keys in tables. The reference is left in, but it's guaranteed to
+** be never dereferenced as long as the value is nil. It's ok if the key is
+** freed or if any object subsequently gets the same address.
+**
+** Not destroying dead keys helps to keep key hash slots stable. This avoids
+** specialization back-off for HREFK when a value flips between nil and
+** non-nil and the GC gets in the way. It also allows safely hoisting
+** HREF/HREFK across GC steps. Dead keys are only removed if a table is
+** resized (i.e. by NEWREF) and xREF must not be CSEd across a resize.
+**
+** The trade-off is that a write barrier for tables must take the key into
+** account, too. Implicitly resurrecting the key by storing a non-nil value
+** may invalidate the incremental GC invariant.
+*/
+
+/* -- Common type definitions --------------------------------------------- */
+
+/* Types for handling bytecodes. Need this here, details in lj_bc.h. */
+typedef uint32_t BCIns;  /* Bytecode instruction. */
+typedef uint32_t BCPos;  /* Bytecode position. */
+typedef uint32_t BCReg;  /* Bytecode register. */
+typedef int32_t BCLine;  /* Bytecode line number. */
+
+/* Internal assembler functions. Never call these directly from C. */
+typedef void (*ASMFunction)(void);
+
+/* Resizable string buffer. Need this here, details in lj_str.h. */
+typedef struct SBuf {
+  char *buf;		/* String buffer base. */
+  MSize n;		/* String buffer length. */
+  MSize sz;		/* String buffer size. */
+} SBuf;
+
+/* -- Tags and values ----------------------------------------------------- */
+
+/* Frame link. */
+typedef union {
+  int32_t ftsz;		/* Frame type and size of previous frame. */
+  MRef pcr;		/* Overlaps PC for Lua frames. */
+} FrameLink;
+
+/* Tagged value. */
+typedef LJ_ALIGN(8) union TValue {
+  uint64_t u64;		/* 64 bit pattern overlaps number. */
+  lua_Number n;		/* Number object overlaps split tag/value object. */
+  struct {
+    LJ_ENDIAN_LOHI(
+      union {
+	GCRef gcr;	/* GCobj reference (if any). */
+	int32_t i;	/* Integer value. */
+      };
+    , uint32_t it;	/* Internal object tag. Must overlap MSW of number. */
+    )
+  };
+  struct {
+    LJ_ENDIAN_LOHI(
+      GCRef func;	/* Function for next frame (or dummy L). */
+    , FrameLink tp;	/* Link to previous frame. */
+    )
+  } fr;
+  struct {
+    LJ_ENDIAN_LOHI(
+      uint32_t lo;	/* Lower 32 bits of number. */
+    , uint32_t hi;	/* Upper 32 bits of number. */
+    )
+  } u32;
+} TValue;
+
+typedef const TValue cTValue;
+
+#define tvref(r)	(mref(r, TValue))
+
+/* More external and GCobj tags for internal objects. */
+#define LAST_TT		LUA_TTHREAD
+#define LUA_TPROTO	(LAST_TT+1)
+#define LUA_TCDATA	(LAST_TT+2)
+
+/* Internal object tags.
+**
+** Internal tags overlap the MSW of a number object (must be a double).
+** Interpreted as a double these are special NaNs. The FPU only generates
+** one type of NaN (0xfff8_0000_0000_0000). So MSWs > 0xfff80000 are available
+** for use as internal tags. Small negative numbers are used to shorten the
+** encoding of type comparisons (reg/mem against sign-ext. 8 bit immediate).
+**
+**                  ---MSW---.---LSW---
+** primitive types |  itype  |         |
+** lightuserdata   |  itype  |  void * |  (32 bit platforms)
+** lightuserdata   |ffff|    void *    |  (64 bit platforms, 47 bit pointers)
+** GC objects      |  itype  |  GCRef  |
+** int (LJ_DUALNUM)|  itype  |   int   |
+** number           -------double------
+**
+** ORDER LJ_T
+** Primitive types nil/false/true must be first, lightuserdata next.
+** GC objects are at the end, table/userdata must be lowest.
+** Also check lj_ir.h for similar ordering constraints.
+*/
+#define LJ_TNIL			(~0u)
+#define LJ_TFALSE		(~1u)
+#define LJ_TTRUE		(~2u)
+#define LJ_TLIGHTUD		(~3u)
+#define LJ_TSTR			(~4u)
+#define LJ_TUPVAL		(~5u)
+#define LJ_TTHREAD		(~6u)
+#define LJ_TPROTO		(~7u)
+#define LJ_TFUNC		(~8u)
+#define LJ_TTRACE		(~9u)
+#define LJ_TCDATA		(~10u)
+#define LJ_TTAB			(~11u)
+#define LJ_TUDATA		(~12u)
+/* This is just the canonical number type used in some places. */
+#define LJ_TNUMX		(~13u)
+
+/* Integers have itype == LJ_TISNUM doubles have itype < LJ_TISNUM */
+#if LJ_64
+#define LJ_TISNUM		0xfffeffffu
+#else
+#define LJ_TISNUM		LJ_TNUMX
+#endif
+#define LJ_TISTRUECOND		LJ_TFALSE
+#define LJ_TISPRI		LJ_TTRUE
+#define LJ_TISGCV		(LJ_TSTR+1)
+#define LJ_TISTABUD		LJ_TTAB
+
+/* -- String object ------------------------------------------------------- */
+
+/* String object header. String payload follows. */
+typedef struct GCstr {
+  GCHeader;
+  uint8_t reserved;	/* Used by lexer for fast lookup of reserved words. */
+  uint8_t unused;
+  MSize hash;		/* Hash of string. */
+  MSize len;		/* Size of string. */
+} GCstr;
+
+#define strref(r)	(&gcref((r))->str)
+#define strdata(s)	((const char *)((s)+1))
+#define strdatawr(s)	((char *)((s)+1))
+#define strVdata(o)	strdata(strV(o))
+#define sizestring(s)	(sizeof(struct GCstr)+(s)->len+1)
+
+/* -- Userdata object ----------------------------------------------------- */
+
+/* Userdata object. Payload follows. */
+typedef struct GCudata {
+  GCHeader;
+  uint8_t udtype;	/* Userdata type. */
+  uint8_t unused2;
+  GCRef env;		/* Should be at same offset in GCfunc. */
+  MSize len;		/* Size of payload. */
+  GCRef metatable;	/* Must be at same offset in GCtab. */
+  uint32_t align1;	/* To force 8 byte alignment of the payload. */
+} GCudata;
+
+/* Userdata types. */
+enum {
+  UDTYPE_USERDATA,	/* Regular userdata. */
+  UDTYPE_IO_FILE,	/* I/O library FILE. */
+  UDTYPE_FFI_CLIB,	/* FFI C library namespace. */
+  UDTYPE__MAX
+};
+
+#define uddata(u)	((void *)((u)+1))
+#define sizeudata(u)	(sizeof(struct GCudata)+(u)->len)
+
+/* -- C data object ------------------------------------------------------- */
+
+/* C data object. Payload follows. */
+typedef struct GCcdata {
+  GCHeader;
+  uint16_t ctypeid;	/* C type ID. */
+} GCcdata;
+
+/* Prepended to variable-sized or realigned C data objects. */
+typedef struct GCcdataVar {
+  uint16_t offset;	/* Offset to allocated memory (relative to GCcdata). */
+  uint16_t extra;	/* Extra space allocated (incl. GCcdata + GCcdatav). */
+  MSize len;		/* Size of payload. */
+} GCcdataVar;
+
+#define cdataptr(cd)	((void *)((cd)+1))
+#define cdataisv(cd)	((cd)->marked & 0x80)
+#define cdatav(cd)	((GCcdataVar *)((char *)(cd) - sizeof(GCcdataVar)))
+#define cdatavlen(cd)	check_exp(cdataisv(cd), cdatav(cd)->len)
+#define sizecdatav(cd)	(cdatavlen(cd) + cdatav(cd)->extra)
+#define memcdatav(cd)	((void *)((char *)(cd) - cdatav(cd)->offset))
+
+/* -- Prototype object ---------------------------------------------------- */
+
+#define SCALE_NUM_GCO	((int32_t)sizeof(lua_Number)/sizeof(GCRef))
+#define round_nkgc(n)	(((n) + SCALE_NUM_GCO-1) & ~(SCALE_NUM_GCO-1))
+
+typedef struct GCproto {
+  GCHeader;
+  uint8_t numparams;	/* Number of parameters. */
+  uint8_t framesize;	/* Fixed frame size. */
+  MSize sizebc;		/* Number of bytecode instructions. */
+  GCRef gclist;
+  MRef k;		/* Split constant array (points to the middle). */
+  MRef uv;		/* Upvalue list. local slot|0x8000 or parent uv idx. */
+  MSize sizekgc;	/* Number of collectable constants. */
+  MSize sizekn;		/* Number of lua_Number constants. */
+  MSize sizept;		/* Total size including colocated arrays. */
+  uint8_t sizeuv;	/* Number of upvalues. */
+  uint8_t flags;	/* Miscellaneous flags (see below). */
+  uint16_t trace;	/* Anchor for chain of root traces. */
+  /* ------ The following fields are for debugging/tracebacks only ------ */
+  GCRef chunkname;	/* Name of the chunk this function was defined in. */
+  BCLine firstline;	/* First line of the function definition. */
+  BCLine numline;	/* Number of lines for the function definition. */
+  MRef lineinfo;	/* Compressed map from bytecode ins. to source line. */
+  MRef uvinfo;		/* Upvalue names. */
+  MRef varinfo;		/* Names and compressed extents of local variables. */
+} GCproto;
+
+/* Flags for prototype. */
+#define PROTO_CHILD		0x01	/* Has child prototypes. */
+#define PROTO_VARARG		0x02	/* Vararg function. */
+#define PROTO_FFI		0x04	/* Uses BC_KCDATA for FFI datatypes. */
+#define PROTO_NOJIT		0x08	/* JIT disabled for this function. */
+#define PROTO_ILOOP		0x10	/* Patched bytecode with ILOOP etc. */
+/* Only used during parsing. */
+#define PROTO_HAS_RETURN	0x20	/* Already emitted a return. */
+#define PROTO_FIXUP_RETURN	0x40	/* Need to fixup emitted returns. */
+/* Top bits used for counting created closures. */
+#define PROTO_CLCOUNT		0x20	/* Base of saturating 3 bit counter. */
+#define PROTO_CLC_BITS		3
+#define PROTO_CLC_POLY		(3*PROTO_CLCOUNT)  /* Polymorphic threshold. */
+
+#define PROTO_UV_LOCAL		0x8000	/* Upvalue for local slot. */
+#define PROTO_UV_IMMUTABLE	0x4000	/* Immutable upvalue. */
+
+#define proto_kgc(pt, idx) \
+  check_exp((uintptr_t)(intptr_t)(idx) >= (uintptr_t)-(intptr_t)(pt)->sizekgc, \
+	    gcref(mref((pt)->k, GCRef)[(idx)]))
+#define proto_knumtv(pt, idx) \
+  check_exp((uintptr_t)(idx) < (pt)->sizekn, &mref((pt)->k, TValue)[(idx)])
+#define proto_bc(pt)		((BCIns *)((char *)(pt) + sizeof(GCproto)))
+#define proto_bcpos(pt, pc)	((BCPos)((pc) - proto_bc(pt)))
+#define proto_uv(pt)		(mref((pt)->uv, uint16_t))
+
+#define proto_chunkname(pt)	(strref((pt)->chunkname))
+#define proto_chunknamestr(pt)	(strdata(proto_chunkname((pt))))
+#define proto_lineinfo(pt)	(mref((pt)->lineinfo, const void))
+#define proto_uvinfo(pt)	(mref((pt)->uvinfo, const uint8_t))
+#define proto_varinfo(pt)	(mref((pt)->varinfo, const uint8_t))
+
+/* -- Upvalue object ------------------------------------------------------ */
+
+typedef struct GCupval {
+  GCHeader;
+  uint8_t closed;	/* Set if closed (i.e. uv->v == &uv->u.value). */
+  uint8_t immutable;	/* Immutable value. */
+  union {
+    TValue tv;		/* If closed: the value itself. */
+    struct {		/* If open: double linked list, anchored at thread. */
+      GCRef prev;
+      GCRef next;
+    };
+  };
+  MRef v;		/* Points to stack slot (open) or above (closed). */
+  uint32_t dhash;	/* Disambiguation hash: dh1 != dh2 => cannot alias. */
+} GCupval;
+
+#define uvprev(uv_)	(&gcref((uv_)->prev)->uv)
+#define uvnext(uv_)	(&gcref((uv_)->next)->uv)
+#define uvval(uv_)	(mref((uv_)->v, TValue))
+
+/* -- Function object (closures) ------------------------------------------ */
+
+/* Common header for functions. env should be at same offset in GCudata. */
+#define GCfuncHeader \
+  GCHeader; uint8_t ffid; uint8_t nupvalues; \
+  GCRef env; GCRef gclist; MRef pc
+
+typedef struct GCfuncC {
+  GCfuncHeader;
+  lua_CFunction f;	/* C function to be called. */
+  TValue upvalue[1];	/* Array of upvalues (TValue). */
+} GCfuncC;
+
+typedef struct GCfuncL {
+  GCfuncHeader;
+  GCRef uvptr[1];	/* Array of _pointers_ to upvalue objects (GCupval). */
+} GCfuncL;
+
+typedef union GCfunc {
+  GCfuncC c;
+  GCfuncL l;
+} GCfunc;
+
+#define FF_LUA		0
+#define FF_C		1
+#define isluafunc(fn)	((fn)->c.ffid == FF_LUA)
+#define iscfunc(fn)	((fn)->c.ffid == FF_C)
+#define isffunc(fn)	((fn)->c.ffid > FF_C)
+#define funcproto(fn) \
+  check_exp(isluafunc(fn), (GCproto *)(mref((fn)->l.pc, char)-sizeof(GCproto)))
+#define sizeCfunc(n)	(sizeof(GCfuncC)-sizeof(TValue)+sizeof(TValue)*(n))
+#define sizeLfunc(n)	(sizeof(GCfuncL)-sizeof(GCRef)+sizeof(GCRef)*(n))
+
+/* -- Table object -------------------------------------------------------- */
+
+/* Hash node. */
+typedef struct Node {
+  TValue val;		/* Value object. Must be first field. */
+  TValue key;		/* Key object. */
+  MRef next;		/* Hash chain. */
+  MRef freetop;		/* Top of free elements (stored in t->node[0]). */
+} Node;
+
+LJ_STATIC_ASSERT(offsetof(Node, val) == 0);
+
+typedef struct GCtab {
+  GCHeader;
+  uint8_t nomm;		/* Negative cache for fast metamethods. */
+  int8_t colo;		/* Array colocation. */
+  MRef array;		/* Array part. */
+  GCRef gclist;
+  GCRef metatable;	/* Must be at same offset in GCudata. */
+  MRef node;		/* Hash part. */
+  uint32_t asize;	/* Size of array part (keys [0, asize-1]). */
+  uint32_t hmask;	/* Hash part mask (size of hash part - 1). */
+} GCtab;
+
+#define sizetabcolo(n)	((n)*sizeof(TValue) + sizeof(GCtab))
+#define tabref(r)	(&gcref((r))->tab)
+#define noderef(r)	(mref((r), Node))
+#define nextnode(n)	(mref((n)->next, Node))
+
+/* -- State objects ------------------------------------------------------- */
+
+/* VM states. */
+enum {
+  LJ_VMST_INTERP,	/* Interpreter. */
+  LJ_VMST_C,		/* C function. */
+  LJ_VMST_GC,		/* Garbage collector. */
+  LJ_VMST_EXIT,		/* Trace exit handler. */
+  LJ_VMST_RECORD,	/* Trace recorder. */
+  LJ_VMST_OPT,		/* Optimizer. */
+  LJ_VMST_ASM,		/* Assembler. */
+  LJ_VMST__MAX
+};
+
+#define setvmstate(g, st)	((g)->vmstate = ~LJ_VMST_##st)
+
+/* Metamethods. ORDER MM */
+#ifdef LJ_HASFFI
+#define MMDEF_FFI(_) _(new)
+#else
+#define MMDEF_FFI(_)
+#endif
+
+#if LJ_52 || LJ_HASFFI
+#define MMDEF_PAIRS(_) _(pairs) _(ipairs)
+#else
+#define MMDEF_PAIRS(_)
+#define MM_pairs	255
+#define MM_ipairs	255
+#endif
+
+#define MMDEF(_) \
+  _(index) _(newindex) _(gc) _(mode) _(eq) _(len) \
+  /* Only the above (fast) metamethods are negative cached (max. 8). */ \
+  _(lt) _(le) _(concat) _(call) \
+  /* The following must be in ORDER ARITH. */ \
+  _(add) _(sub) _(mul) _(div) _(mod) _(pow) _(unm) \
+  /* The following are used in the standard libraries. */ \
+  _(metatable) _(tostring) MMDEF_FFI(_) MMDEF_PAIRS(_)
+
+typedef enum {
+#define MMENUM(name)	MM_##name,
+MMDEF(MMENUM)
+#undef MMENUM
+  MM__MAX,
+  MM____ = MM__MAX,
+  MM_FAST = MM_len
+} MMS;
+
+/* GC root IDs. */
+typedef enum {
+  GCROOT_MMNAME,	/* Metamethod names. */
+  GCROOT_MMNAME_LAST = GCROOT_MMNAME + MM__MAX-1,
+  GCROOT_BASEMT,	/* Metatables for base types. */
+  GCROOT_BASEMT_NUM = GCROOT_BASEMT + ~LJ_TNUMX,
+  GCROOT_IO_INPUT,	/* Userdata for default I/O input file. */
+  GCROOT_IO_OUTPUT,	/* Userdata for default I/O output file. */
+  GCROOT_MAX
+} GCRootID;
+
+#define basemt_it(g, it)	((g)->gcroot[GCROOT_BASEMT+~(it)])
+#define basemt_obj(g, o)	((g)->gcroot[GCROOT_BASEMT+itypemap(o)])
+#define mmname_str(g, mm)	(strref((g)->gcroot[GCROOT_MMNAME+(mm)]))
+
+typedef struct GCState {
+  MSize total;		/* Memory currently allocated. */
+  MSize threshold;	/* Memory threshold. */
+  uint8_t currentwhite;	/* Current white color. */
+  uint8_t state;	/* GC state. */
+  uint8_t nocdatafin;	/* No cdata finalizer called. */
+  uint8_t unused2;
+  MSize sweepstr;	/* Sweep position in string table. */
+  GCRef root;		/* List of all collectable objects. */
+  MRef sweep;		/* Sweep position in root list. */
+  GCRef gray;		/* List of gray objects. */
+  GCRef grayagain;	/* List of objects for atomic traversal. */
+  GCRef weak;		/* List of weak tables (to be cleared). */
+  GCRef mmudata;	/* List of userdata (to be finalized). */
+  MSize stepmul;	/* Incremental GC step granularity. */
+  MSize debt;		/* Debt (how much GC is behind schedule). */
+  MSize estimate;	/* Estimate of memory actually in use. */
+  MSize pause;		/* Pause between successive GC cycles. */
+} GCState;
+
+/* Global state, shared by all threads of a Lua universe. */
+typedef struct global_State {
+  GCRef *strhash;	/* String hash table (hash chain anchors). */
+  MSize strmask;	/* String hash mask (size of hash table - 1). */
+  MSize strnum;		/* Number of strings in hash table. */
+  lua_Alloc allocf;	/* Memory allocator. */
+  void *allocd;		/* Memory allocator data. */
+  GCState gc;		/* Garbage collector. */
+  SBuf tmpbuf;		/* Temporary buffer for string concatenation. */
+  Node nilnode;		/* Fallback 1-element hash part (nil key and value). */
+  GCstr strempty;	/* Empty string. */
+  uint8_t stremptyz;	/* Zero terminator of empty string. */
+  uint8_t hookmask;	/* Hook mask. */
+  uint8_t dispatchmode;	/* Dispatch mode. */
+  uint8_t vmevmask;	/* VM event mask. */
+  GCRef mainthref;	/* Link to main thread. */
+  TValue registrytv;	/* Anchor for registry. */
+  TValue tmptv, tmptv2;	/* Temporary TValues. */
+  GCupval uvhead;	/* Head of double-linked list of all open upvalues. */
+  int32_t hookcount;	/* Instruction hook countdown. */
+  int32_t hookcstart;	/* Start count for instruction hook counter. */
+  lua_Hook hookf;	/* Hook function. */
+  lua_CFunction wrapf;	/* Wrapper for C function calls. */
+  lua_CFunction panic;	/* Called as a last resort for errors. */
+  volatile int32_t vmstate;  /* VM state or current JIT code trace number. */
+  BCIns bc_cfunc_int;	/* Bytecode for internal C function calls. */
+  BCIns bc_cfunc_ext;	/* Bytecode for external C function calls. */
+  GCRef jit_L;		/* Current JIT code lua_State or NULL. */
+  MRef jit_base;	/* Current JIT code L->base. */
+  MRef ctype_state;	/* Pointer to C type state. */
+  GCRef gcroot[GCROOT_MAX];  /* GC roots. */
+} global_State;
+
+#define mainthread(g)	(&gcref(g->mainthref)->th)
+#define niltv(L) \
+  check_exp(tvisnil(&G(L)->nilnode.val), &G(L)->nilnode.val)
+#define niltvg(g) \
+  check_exp(tvisnil(&(g)->nilnode.val), &(g)->nilnode.val)
+
+/* Hook management. Hook event masks are defined in lua.h. */
+#define HOOK_EVENTMASK		0x0f
+#define HOOK_ACTIVE		0x10
+#define HOOK_ACTIVE_SHIFT	4
+#define HOOK_VMEVENT		0x20
+#define HOOK_GC			0x40
+#define hook_active(g)		((g)->hookmask & HOOK_ACTIVE)
+#define hook_enter(g)		((g)->hookmask |= HOOK_ACTIVE)
+#define hook_entergc(g)		((g)->hookmask |= (HOOK_ACTIVE|HOOK_GC))
+#define hook_vmevent(g)		((g)->hookmask |= (HOOK_ACTIVE|HOOK_VMEVENT))
+#define hook_leave(g)		((g)->hookmask &= ~HOOK_ACTIVE)
+#define hook_save(g)		((g)->hookmask & ~HOOK_EVENTMASK)
+#define hook_restore(g, h) \
+  ((g)->hookmask = ((g)->hookmask & HOOK_EVENTMASK) | (h))
+
+/* Per-thread state object. */
+struct lua_State {
+  GCHeader;
+  uint8_t dummy_ffid;	/* Fake FF_C for curr_funcisL() on dummy frames. */
+  uint8_t status;	/* Thread status. */
+  MRef glref;		/* Link to global state. */
+  GCRef gclist;		/* GC chain. */
+  TValue *base;		/* Base of currently executing function. */
+  TValue *top;		/* First free slot in the stack. */
+  MRef maxstack;	/* Last free slot in the stack. */
+  MRef stack;		/* Stack base. */
+  GCRef openupval;	/* List of open upvalues in the stack. */
+  GCRef env;		/* Thread environment (table of globals). */
+  void *cframe;		/* End of C stack frame chain. */
+  MSize stacksize;	/* True stack size (incl. LJ_STACK_EXTRA). */
+};
+
+#define G(L)			(mref(L->glref, global_State))
+#define registry(L)		(&G(L)->registrytv)
+
+/* Macros to access the currently executing (Lua) function. */
+#define curr_func(L)		(&gcref((L->base-1)->fr.func)->fn)
+#define curr_funcisL(L)		(isluafunc(curr_func(L)))
+#define curr_proto(L)		(funcproto(curr_func(L)))
+#define curr_topL(L)		(L->base + curr_proto(L)->framesize)
+#define curr_top(L)		(curr_funcisL(L) ? curr_topL(L) : L->top)
+
+/* -- GC object definition and conversions -------------------------------- */
+
+/* GC header for generic access to common fields of GC objects. */
+typedef struct GChead {
+  GCHeader;
+  uint8_t unused1;
+  uint8_t unused2;
+  GCRef env;
+  GCRef gclist;
+  GCRef metatable;
+} GChead;
+
+/* The env field SHOULD be at the same offset for all GC objects. */
+LJ_STATIC_ASSERT(offsetof(GChead, env) == offsetof(GCfuncL, env));
+LJ_STATIC_ASSERT(offsetof(GChead, env) == offsetof(GCudata, env));
+
+/* The metatable field MUST be at the same offset for all GC objects. */
+LJ_STATIC_ASSERT(offsetof(GChead, metatable) == offsetof(GCtab, metatable));
+LJ_STATIC_ASSERT(offsetof(GChead, metatable) == offsetof(GCudata, metatable));
+
+/* The gclist field MUST be at the same offset for all GC objects. */
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(lua_State, gclist));
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCproto, gclist));
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCfuncL, gclist));
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCtab, gclist));
+
+typedef union GCobj {
+  GChead gch;
+  GCstr str;
+  GCupval uv;
+  lua_State th;
+  GCproto pt;
+  GCfunc fn;
+  GCcdata cd;
+  GCtab tab;
+  GCudata ud;
+} GCobj;
+
+/* Macros to convert a GCobj pointer into a specific value. */
+#define gco2str(o)	check_exp((o)->gch.gct == ~LJ_TSTR, &(o)->str)
+#define gco2uv(o)	check_exp((o)->gch.gct == ~LJ_TUPVAL, &(o)->uv)
+#define gco2th(o)	check_exp((o)->gch.gct == ~LJ_TTHREAD, &(o)->th)
+#define gco2pt(o)	check_exp((o)->gch.gct == ~LJ_TPROTO, &(o)->pt)
+#define gco2func(o)	check_exp((o)->gch.gct == ~LJ_TFUNC, &(o)->fn)
+#define gco2cd(o)	check_exp((o)->gch.gct == ~LJ_TCDATA, &(o)->cd)
+#define gco2tab(o)	check_exp((o)->gch.gct == ~LJ_TTAB, &(o)->tab)
+#define gco2ud(o)	check_exp((o)->gch.gct == ~LJ_TUDATA, &(o)->ud)
+
+/* Macro to convert any collectable object into a GCobj pointer. */
+#define obj2gco(v)	((GCobj *)(v))
+
+/* -- TValue getters/setters ---------------------------------------------- */
+
+#ifdef LUA_USE_ASSERT
+#include "lj_gc.h"
+#endif
+
+/* Macros to test types. */
+#define itype(o)	((o)->it)
+#define tvisnil(o)	(itype(o) == LJ_TNIL)
+#define tvisfalse(o)	(itype(o) == LJ_TFALSE)
+#define tvistrue(o)	(itype(o) == LJ_TTRUE)
+#define tvisbool(o)	(tvisfalse(o) || tvistrue(o))
+#if LJ_64
+#define tvislightud(o)	(((int32_t)itype(o) >> 15) == -2)
+#else
+#define tvislightud(o)	(itype(o) == LJ_TLIGHTUD)
+#endif
+#define tvisstr(o)	(itype(o) == LJ_TSTR)
+#define tvisfunc(o)	(itype(o) == LJ_TFUNC)
+#define tvisthread(o)	(itype(o) == LJ_TTHREAD)
+#define tvisproto(o)	(itype(o) == LJ_TPROTO)
+#define tviscdata(o)	(itype(o) == LJ_TCDATA)
+#define tvistab(o)	(itype(o) == LJ_TTAB)
+#define tvisudata(o)	(itype(o) == LJ_TUDATA)
+#define tvisnumber(o)	(itype(o) <= LJ_TISNUM)
+#define tvisint(o)	(LJ_DUALNUM && itype(o) == LJ_TISNUM)
+#define tvisnum(o)	(itype(o) < LJ_TISNUM)
+
+#define tvistruecond(o)	(itype(o) < LJ_TISTRUECOND)
+#define tvispri(o)	(itype(o) >= LJ_TISPRI)
+#define tvistabud(o)	(itype(o) <= LJ_TISTABUD)  /* && !tvisnum() */
+#define tvisgcv(o)	((itype(o) - LJ_TISGCV) > (LJ_TNUMX - LJ_TISGCV))
+
+/* Special macros to test numbers for NaN, +0, -0, +1 and raw equality. */
+#define tvisnan(o)	((o)->n != (o)->n)
+#if LJ_64
+#define tviszero(o)	(((o)->u64 << 1) == 0)
+#else
+#define tviszero(o)	(((o)->u32.lo | ((o)->u32.hi << 1)) == 0)
+#endif
+#define tvispzero(o)	((o)->u64 == 0)
+#define tvismzero(o)	((o)->u64 == U64x(80000000,00000000))
+#define tvispone(o)	((o)->u64 == U64x(3ff00000,00000000))
+#define rawnumequal(o1, o2)	((o1)->u64 == (o2)->u64)
+
+/* Macros to convert type ids. */
+#if LJ_64
+#define itypemap(o) \
+  (tvisnumber(o) ? ~LJ_TNUMX : tvislightud(o) ? ~LJ_TLIGHTUD : ~itype(o))
+#else
+#define itypemap(o)	(tvisnumber(o) ? ~LJ_TNUMX : ~itype(o))
+#endif
+
+/* Macros to get tagged values. */
+#define gcval(o)	(gcref((o)->gcr))
+#define boolV(o)	check_exp(tvisbool(o), (LJ_TFALSE - (o)->it))
+#if LJ_64
+#define lightudV(o) \
+  check_exp(tvislightud(o), (void *)((o)->u64 & U64x(00007fff,ffffffff)))
+#else
+#define lightudV(o)	check_exp(tvislightud(o), gcrefp((o)->gcr, void))
+#endif
+#define gcV(o)		check_exp(tvisgcv(o), gcval(o))
+#define strV(o)		check_exp(tvisstr(o), &gcval(o)->str)
+#define funcV(o)	check_exp(tvisfunc(o), &gcval(o)->fn)
+#define threadV(o)	check_exp(tvisthread(o), &gcval(o)->th)
+#define protoV(o)	check_exp(tvisproto(o), &gcval(o)->pt)
+#define cdataV(o)	check_exp(tviscdata(o), &gcval(o)->cd)
+#define tabV(o)		check_exp(tvistab(o), &gcval(o)->tab)
+#define udataV(o)	check_exp(tvisudata(o), &gcval(o)->ud)
+#define numV(o)		check_exp(tvisnum(o), (o)->n)
+#define intV(o)		check_exp(tvisint(o), (int32_t)(o)->i)
+
+/* Macros to set tagged values. */
+#define setitype(o, i)		((o)->it = (i))
+#define setnilV(o)		((o)->it = LJ_TNIL)
+#define setboolV(o, x)		((o)->it = LJ_TFALSE-(uint32_t)(x))
+
+static LJ_AINLINE void setlightudV(TValue *o, void *p)
+{
+#if LJ_64
+  o->u64 = (uint64_t)p | (((uint64_t)0xffff) << 48);
+#else
+  setgcrefp(o->gcr, p); setitype(o, LJ_TLIGHTUD);
+#endif
+}
+
+#if LJ_64
+#define checklightudptr(L, p) \
+  (((uint64_t)(p) >> 47) ? (lj_err_msg(L, LJ_ERR_BADLU), NULL) : (p))
+#define setcont(o, f) \
+  ((o)->u64 = (uint64_t)(void *)(f) - (uint64_t)lj_vm_asm_begin)
+#else
+#define checklightudptr(L, p)	(p)
+#define setcont(o, f)		setlightudV((o), (void *)(f))
+#endif
+
+#define tvchecklive(L, o) \
+  UNUSED(L), lua_assert(!tvisgcv(o) || \
+  ((~itype(o) == gcval(o)->gch.gct) && !isdead(G(L), gcval(o))))
+
+static LJ_AINLINE void setgcV(lua_State *L, TValue *o, GCobj *v, uint32_t itype)
+{
+  setgcref(o->gcr, v); setitype(o, itype); tvchecklive(L, o);
+}
+
+#define define_setV(name, type, tag) \
+static LJ_AINLINE void name(lua_State *L, TValue *o, type *v) \
+{ \
+  setgcV(L, o, obj2gco(v), tag); \
+}
+define_setV(setstrV, GCstr, LJ_TSTR)
+define_setV(setthreadV, lua_State, LJ_TTHREAD)
+define_setV(setprotoV, GCproto, LJ_TPROTO)
+define_setV(setfuncV, GCfunc, LJ_TFUNC)
+define_setV(setcdataV, GCcdata, LJ_TCDATA)
+define_setV(settabV, GCtab, LJ_TTAB)
+define_setV(setudataV, GCudata, LJ_TUDATA)
+
+#define setnumV(o, x)		((o)->n = (x))
+#define setnanV(o)		((o)->u64 = U64x(fff80000,00000000))
+#define setpinfV(o)		((o)->u64 = U64x(7ff00000,00000000))
+#define setminfV(o)		((o)->u64 = U64x(fff00000,00000000))
+
+static LJ_AINLINE void setintV(TValue *o, int32_t i)
+{
+#if LJ_DUALNUM
+  o->i = (uint32_t)i; setitype(o, LJ_TISNUM);
+#else
+  o->n = (lua_Number)i;
+#endif
+}
+
+static LJ_AINLINE void setint64V(TValue *o, int64_t i)
+{
+  if (LJ_DUALNUM && LJ_LIKELY(i == (int64_t)(int32_t)i))
+    setintV(o, (int32_t)i);
+  else
+    setnumV(o, (lua_Number)i);
+}
+
+#if LJ_64
+#define setintptrV(o, i)	setint64V((o), (i))
+#else
+#define setintptrV(o, i)	setintV((o), (i))
+#endif
+
+/* Copy tagged values. */
+static LJ_AINLINE void copyTV(lua_State *L, TValue *o1, const TValue *o2)
+{
+  *o1 = *o2; tvchecklive(L, o1);
+}
+
+/* -- Number to integer conversion ---------------------------------------- */
+
+#if LJ_SOFTFP
+LJ_ASMF int32_t lj_vm_tobit(double x);
+#endif
+
+static LJ_AINLINE int32_t lj_num2bit(lua_Number n)
+{
+#if LJ_SOFTFP
+  return lj_vm_tobit(n);
+#else
+  TValue o;
+  o.n = n + 6755399441055744.0;  /* 2^52 + 2^51 */
+  return (int32_t)o.u32.lo;
+#endif
+}
+
+#if LJ_TARGET_X86 && !defined(__SSE2__)
+#define lj_num2int(n)   lj_num2bit((n))
+#else
+#define lj_num2int(n)   ((int32_t)(n))
+#endif
+
+static LJ_AINLINE uint64_t lj_num2u64(lua_Number n)
+{
+#ifdef _MSC_VER
+  if (n >= 9223372036854775808.0)  /* They think it's a feature. */
+    return (uint64_t)(int64_t)(n - 18446744073709551616.0);
+  else
+#endif
+    return (uint64_t)n;
+}
+
+static LJ_AINLINE int32_t numberVint(cTValue *o)
+{
+  if (LJ_LIKELY(tvisint(o)))
+    return intV(o);
+  else
+    return lj_num2int(numV(o));
+}
+
+static LJ_AINLINE lua_Number numberVnum(cTValue *o)
+{
+  if (LJ_UNLIKELY(tvisint(o)))
+    return (lua_Number)intV(o);
+  else
+    return numV(o);
+}
+
+/* -- Miscellaneous object handling --------------------------------------- */
+
+/* Names and maps for internal and external object tags. */
+LJ_DATA const char *const lj_obj_typename[1+LUA_TCDATA+1];
+LJ_DATA const char *const lj_obj_itypename[~LJ_TNUMX+1];
+
+#define lj_typename(o)	(lj_obj_itypename[itypemap(o)])
+
+/* Compare two objects without calling metamethods. */
+LJ_FUNC int lj_obj_equal(cTValue *o1, cTValue *o2);
+
+#endif
diff --git a/lib/luajit/src/lj_opt_dce.c b/lib/luajit/src/lj_opt_dce.c
new file mode 100644
index 00000000..be801894
--- /dev/null
+++ b/lib/luajit/src/lj_opt_dce.c
@@ -0,0 +1,77 @@
+/*
+** DCE: Dead Code Elimination. Pre-LOOP only -- ASM already performs DCE.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_dce_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Scan through all snapshots and mark all referenced instructions. */
+static void dce_marksnap(jit_State *J)
+{
+  SnapNo i, nsnap = J->cur.nsnap;
+  for (i = 0; i < nsnap; i++) {
+    SnapShot *snap = &J->cur.snap[i];
+    SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+    MSize n, nent = snap->nent;
+    for (n = 0; n < nent; n++) {
+      IRRef ref = snap_ref(map[n]);
+      if (ref >= REF_FIRST)
+	irt_setmark(IR(ref)->t);
+    }
+  }
+}
+
+/* Backwards propagate marks. Replace unused instructions with NOPs. */
+static void dce_propagate(jit_State *J)
+{
+  IRRef1 *pchain[IR__MAX];
+  IRRef ins;
+  uint32_t i;
+  for (i = 0; i < IR__MAX; i++) pchain[i] = &J->chain[i];
+  for (ins = J->cur.nins-1; ins >= REF_FIRST; ins--) {
+    IRIns *ir = IR(ins);
+    if (irt_ismarked(ir->t)) {
+      irt_clearmark(ir->t);
+      pchain[ir->o] = &ir->prev;
+    } else if (!ir_sideeff(ir)) {
+      *pchain[ir->o] = ir->prev;  /* Reroute original instruction chain. */
+      ir->t.irt = IRT_NIL;
+      ir->o = IR_NOP;  /* Replace instruction with NOP. */
+      ir->op1 = ir->op2 = 0;
+      ir->prev = 0;
+      continue;
+    }
+    if (ir->op1 >= REF_FIRST) irt_setmark(IR(ir->op1)->t);
+    if (ir->op2 >= REF_FIRST) irt_setmark(IR(ir->op2)->t);
+  }
+}
+
+/* Dead Code Elimination.
+**
+** First backpropagate marks for all used instructions. Then replace
+** the unused ones with a NOP. Note that compressing the IR to eliminate
+** the NOPs does not pay off.
+*/
+void lj_opt_dce(jit_State *J)
+{
+  if ((J->flags & JIT_F_OPT_DCE)) {
+    dce_marksnap(J);
+    dce_propagate(J);
+  }
+}
+
+#undef IR
+
+#endif
diff --git a/lib/luajit/src/lj_opt_fold.c b/lib/luajit/src/lj_opt_fold.c
new file mode 100644
index 00000000..8a5b41cc
--- /dev/null
+++ b/lib/luajit/src/lj_opt_fold.c
@@ -0,0 +1,2297 @@
+/*
+** FOLD: Constant Folding, Algebraic Simplifications and Reassociation.
+** ABCelim: Array Bounds Check Elimination.
+** CSE: Common-Subexpression Elimination.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_fold_c
+#define LUA_CORE
+
+#include <math.h>
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_carith.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+
+/* Here's a short description how the FOLD engine processes instructions:
+**
+** The FOLD engine receives a single instruction stored in fins (J->fold.ins).
+** The instruction and its operands are used to select matching fold rules.
+** These are applied iteratively until a fixed point is reached.
+**
+** The 8 bit opcode of the instruction itself plus the opcodes of the
+** two instructions referenced by its operands form a 24 bit key
+** 'ins left right' (unused operands -> 0, literals -> lowest 8 bits).
+**
+** This key is used for partial matching against the fold rules. The
+** left/right operand fields of the key are successively masked with
+** the 'any' wildcard, from most specific to least specific:
+**
+**   ins left right
+**   ins any  right
+**   ins left any
+**   ins any  any
+**
+** The masked key is used to lookup a matching fold rule in a semi-perfect
+** hash table. If a matching rule is found, the related fold function is run.
+** Multiple rules can share the same fold function. A fold rule may return
+** one of several special values:
+**
+** - NEXTFOLD means no folding was applied, because an additional test
+**   inside the fold function failed. Matching continues against less
+**   specific fold rules. Finally the instruction is passed on to CSE.
+**
+** - RETRYFOLD means the instruction was modified in-place. Folding is
+**   retried as if this instruction had just been received.
+**
+** All other return values are terminal actions -- no further folding is
+** applied:
+**
+** - INTFOLD(i) returns a reference to the integer constant i.
+**
+** - LEFTFOLD and RIGHTFOLD return the left/right operand reference
+**   without emitting an instruction.
+**
+** - CSEFOLD and EMITFOLD pass the instruction directly to CSE or emit
+**   it without passing through any further optimizations.
+**
+** - FAILFOLD, DROPFOLD and CONDFOLD only apply to instructions which have
+**   no result (e.g. guarded assertions): FAILFOLD means the guard would
+**   always fail, i.e. the current trace is pointless. DROPFOLD means
+**   the guard is always true and has been eliminated. CONDFOLD is a
+**   shortcut for FAILFOLD + cond (i.e. drop if true, otherwise fail).
+**
+** - Any other return value is interpreted as an IRRef or TRef. This
+**   can be a reference to an existing or a newly created instruction.
+**   Only the least-significant 16 bits (IRRef1) are used to form a TRef
+**   which is finally returned to the caller.
+**
+** The FOLD engine receives instructions both from the trace recorder and
+** substituted instructions from LOOP unrolling. This means all types
+** of instructions may end up here, even though the recorder bypasses
+** FOLD in some cases. Thus all loads, stores and allocations must have
+** an any/any rule to avoid being passed on to CSE.
+**
+** Carefully read the following requirements before adding or modifying
+** any fold rules:
+**
+** Requirement #1: All fold rules must preserve their destination type.
+**
+** Consistently use INTFOLD() (KINT result) or lj_ir_knum() (KNUM result).
+** Never use lj_ir_knumint() which can have either a KINT or KNUM result.
+**
+** Requirement #2: Fold rules should not create *new* instructions which
+** reference operands *across* PHIs.
+**
+** E.g. a RETRYFOLD with 'fins->op1 = fleft->op1' is invalid if the
+** left operand is a PHI. Then fleft->op1 would point across the PHI
+** frontier to an invariant instruction. Adding a PHI for this instruction
+** would be counterproductive. The solution is to add a barrier which
+** prevents folding across PHIs, i.e. 'PHIBARRIER(fleft)' in this case.
+** The only exception is for recurrences with high latencies like
+** repeated int->num->int conversions.
+**
+** One could relax this condition a bit if the referenced instruction is
+** a PHI, too. But this often leads to worse code due to excessive
+** register shuffling.
+**
+** Note: returning *existing* instructions (e.g. LEFTFOLD) is ok, though.
+** Even returning fleft->op1 would be ok, because a new PHI will added,
+** if needed. But again, this leads to excessive register shuffling and
+** should be avoided.
+**
+** Requirement #3: The set of all fold rules must be monotonic to guarantee
+** termination.
+**
+** The goal is optimization, so one primarily wants to add strength-reducing
+** rules. This means eliminating an instruction or replacing an instruction
+** with one or more simpler instructions. Don't add fold rules which point
+** into the other direction.
+**
+** Some rules (like commutativity) do not directly reduce the strength of
+** an instruction, but enable other fold rules (e.g. by moving constants
+** to the right operand). These rules must be made unidirectional to avoid
+** cycles.
+**
+** Rule of thumb: the trace recorder expands the IR and FOLD shrinks it.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+#define fins		(&J->fold.ins)
+#define fleft		(&J->fold.left)
+#define fright		(&J->fold.right)
+#define knumleft	(ir_knum(fleft)->n)
+#define knumright	(ir_knum(fright)->n)
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Fold function type. Fastcall on x86 significantly reduces their size. */
+typedef IRRef (LJ_FASTCALL *FoldFunc)(jit_State *J);
+
+/* Macros for the fold specs, so buildvm can recognize them. */
+#define LJFOLD(x)
+#define LJFOLDX(x)
+#define LJFOLDF(name)	static TRef LJ_FASTCALL fold_##name(jit_State *J)
+/* Note: They must be at the start of a line or buildvm ignores them! */
+
+/* Barrier to prevent using operands across PHIs. */
+#define PHIBARRIER(ir)	if (irt_isphi((ir)->t)) return NEXTFOLD
+
+/* Barrier to prevent folding across a GC step.
+** GC steps can only happen at the head of a trace and at LOOP.
+** And the GC is only driven forward if there is at least one allocation.
+*/
+#define gcstep_barrier(J, ref) \
+  ((ref) < J->chain[IR_LOOP] && \
+   (J->chain[IR_SNEW] || J->chain[IR_XSNEW] || \
+    J->chain[IR_TNEW] || J->chain[IR_TDUP] || \
+    J->chain[IR_CNEW] || J->chain[IR_CNEWI] || J->chain[IR_TOSTR]))
+
+/* -- Constant folding for FP numbers ------------------------------------- */
+
+LJFOLD(ADD KNUM KNUM)
+LJFOLD(SUB KNUM KNUM)
+LJFOLD(MUL KNUM KNUM)
+LJFOLD(DIV KNUM KNUM)
+LJFOLD(NEG KNUM KNUM)
+LJFOLD(ABS KNUM KNUM)
+LJFOLD(ATAN2 KNUM KNUM)
+LJFOLD(LDEXP KNUM KNUM)
+LJFOLD(MIN KNUM KNUM)
+LJFOLD(MAX KNUM KNUM)
+LJFOLDF(kfold_numarith)
+{
+  lua_Number a = knumleft;
+  lua_Number b = knumright;
+  lua_Number y = lj_vm_foldarith(a, b, fins->o - IR_ADD);
+  return lj_ir_knum(J, y);
+}
+
+LJFOLD(LDEXP KNUM KINT)
+LJFOLDF(kfold_ldexp)
+{
+#if LJ_TARGET_X86ORX64
+  UNUSED(J);
+  return NEXTFOLD;
+#else
+  return lj_ir_knum(J, ldexp(knumleft, fright->i));
+#endif
+}
+
+LJFOLD(FPMATH KNUM any)
+LJFOLDF(kfold_fpmath)
+{
+  lua_Number a = knumleft;
+  lua_Number y = lj_vm_foldfpm(a, fins->op2);
+  return lj_ir_knum(J, y);
+}
+
+LJFOLD(POW KNUM KINT)
+LJFOLDF(kfold_numpow)
+{
+  lua_Number a = knumleft;
+  lua_Number b = (lua_Number)fright->i;
+  lua_Number y = lj_vm_foldarith(a, b, IR_POW - IR_ADD);
+  return lj_ir_knum(J, y);
+}
+
+/* Must not use kfold_kref for numbers (could be NaN). */
+LJFOLD(EQ KNUM KNUM)
+LJFOLD(NE KNUM KNUM)
+LJFOLD(LT KNUM KNUM)
+LJFOLD(GE KNUM KNUM)
+LJFOLD(LE KNUM KNUM)
+LJFOLD(GT KNUM KNUM)
+LJFOLD(ULT KNUM KNUM)
+LJFOLD(UGE KNUM KNUM)
+LJFOLD(ULE KNUM KNUM)
+LJFOLD(UGT KNUM KNUM)
+LJFOLDF(kfold_numcomp)
+{
+  return CONDFOLD(lj_ir_numcmp(knumleft, knumright, (IROp)fins->o));
+}
+
+/* -- Constant folding for 32 bit integers -------------------------------- */
+
+static int32_t kfold_intop(int32_t k1, int32_t k2, IROp op)
+{
+  switch (op) {
+  case IR_ADD: k1 += k2; break;
+  case IR_SUB: k1 -= k2; break;
+  case IR_MUL: k1 *= k2; break;
+  case IR_MOD: k1 = lj_vm_modi(k1, k2); break;
+  case IR_NEG: k1 = -k1; break;
+  case IR_BAND: k1 &= k2; break;
+  case IR_BOR: k1 |= k2; break;
+  case IR_BXOR: k1 ^= k2; break;
+  case IR_BSHL: k1 <<= (k2 & 31); break;
+  case IR_BSHR: k1 = (int32_t)((uint32_t)k1 >> (k2 & 31)); break;
+  case IR_BSAR: k1 >>= (k2 & 31); break;
+  case IR_BROL: k1 = (int32_t)lj_rol((uint32_t)k1, (k2 & 31)); break;
+  case IR_BROR: k1 = (int32_t)lj_ror((uint32_t)k1, (k2 & 31)); break;
+  case IR_MIN: k1 = k1 < k2 ? k1 : k2; break;
+  case IR_MAX: k1 = k1 > k2 ? k1 : k2; break;
+  default: lua_assert(0); break;
+  }
+  return k1;
+}
+
+LJFOLD(ADD KINT KINT)
+LJFOLD(SUB KINT KINT)
+LJFOLD(MUL KINT KINT)
+LJFOLD(MOD KINT KINT)
+LJFOLD(NEG KINT KINT)
+LJFOLD(BAND KINT KINT)
+LJFOLD(BOR KINT KINT)
+LJFOLD(BXOR KINT KINT)
+LJFOLD(BSHL KINT KINT)
+LJFOLD(BSHR KINT KINT)
+LJFOLD(BSAR KINT KINT)
+LJFOLD(BROL KINT KINT)
+LJFOLD(BROR KINT KINT)
+LJFOLD(MIN KINT KINT)
+LJFOLD(MAX KINT KINT)
+LJFOLDF(kfold_intarith)
+{
+  return INTFOLD(kfold_intop(fleft->i, fright->i, (IROp)fins->o));
+}
+
+LJFOLD(ADDOV KINT KINT)
+LJFOLD(SUBOV KINT KINT)
+LJFOLD(MULOV KINT KINT)
+LJFOLDF(kfold_intovarith)
+{
+  lua_Number n = lj_vm_foldarith((lua_Number)fleft->i, (lua_Number)fright->i,
+				 fins->o - IR_ADDOV);
+  int32_t k = lj_num2int(n);
+  if (n != (lua_Number)k)
+    return FAILFOLD;
+  return INTFOLD(k);
+}
+
+LJFOLD(BNOT KINT)
+LJFOLDF(kfold_bnot)
+{
+  return INTFOLD(~fleft->i);
+}
+
+LJFOLD(BSWAP KINT)
+LJFOLDF(kfold_bswap)
+{
+  return INTFOLD((int32_t)lj_bswap((uint32_t)fleft->i));
+}
+
+LJFOLD(LT KINT KINT)
+LJFOLD(GE KINT KINT)
+LJFOLD(LE KINT KINT)
+LJFOLD(GT KINT KINT)
+LJFOLD(ULT KINT KINT)
+LJFOLD(UGE KINT KINT)
+LJFOLD(ULE KINT KINT)
+LJFOLD(UGT KINT KINT)
+LJFOLD(ABC KINT KINT)
+LJFOLDF(kfold_intcomp)
+{
+  int32_t a = fleft->i, b = fright->i;
+  switch ((IROp)fins->o) {
+  case IR_LT: return CONDFOLD(a < b);
+  case IR_GE: return CONDFOLD(a >= b);
+  case IR_LE: return CONDFOLD(a <= b);
+  case IR_GT: return CONDFOLD(a > b);
+  case IR_ULT: return CONDFOLD((uint32_t)a < (uint32_t)b);
+  case IR_UGE: return CONDFOLD((uint32_t)a >= (uint32_t)b);
+  case IR_ULE: return CONDFOLD((uint32_t)a <= (uint32_t)b);
+  case IR_ABC:
+  case IR_UGT: return CONDFOLD((uint32_t)a > (uint32_t)b);
+  default: lua_assert(0); return FAILFOLD;
+  }
+}
+
+LJFOLD(UGE any KINT)
+LJFOLDF(kfold_intcomp0)
+{
+  if (fright->i == 0)
+    return DROPFOLD;
+  return NEXTFOLD;
+}
+
+/* -- Constant folding for 64 bit integers -------------------------------- */
+
+static uint64_t kfold_int64arith(uint64_t k1, uint64_t k2, IROp op)
+{
+  switch (op) {
+#if LJ_64 || LJ_HASFFI
+  case IR_ADD: k1 += k2; break;
+  case IR_SUB: k1 -= k2; break;
+#endif
+#if LJ_HASFFI
+  case IR_MUL: k1 *= k2; break;
+  case IR_BAND: k1 &= k2; break;
+  case IR_BOR: k1 |= k2; break;
+  case IR_BXOR: k1 ^= k2; break;
+#endif
+  default: UNUSED(k2); lua_assert(0); break;
+  }
+  return k1;
+}
+
+LJFOLD(ADD KINT64 KINT64)
+LJFOLD(SUB KINT64 KINT64)
+LJFOLD(MUL KINT64 KINT64)
+LJFOLD(BAND KINT64 KINT64)
+LJFOLD(BOR KINT64 KINT64)
+LJFOLD(BXOR KINT64 KINT64)
+LJFOLDF(kfold_int64arith)
+{
+  return INT64FOLD(kfold_int64arith(ir_k64(fleft)->u64,
+				    ir_k64(fright)->u64, (IROp)fins->o));
+}
+
+LJFOLD(DIV KINT64 KINT64)
+LJFOLD(MOD KINT64 KINT64)
+LJFOLD(POW KINT64 KINT64)
+LJFOLDF(kfold_int64arith2)
+{
+#if LJ_HASFFI
+  uint64_t k1 = ir_k64(fleft)->u64, k2 = ir_k64(fright)->u64;
+  if (irt_isi64(fins->t)) {
+    k1 = fins->o == IR_DIV ? lj_carith_divi64((int64_t)k1, (int64_t)k2) :
+	 fins->o == IR_MOD ? lj_carith_modi64((int64_t)k1, (int64_t)k2) :
+			     lj_carith_powi64((int64_t)k1, (int64_t)k2);
+  } else {
+    k1 = fins->o == IR_DIV ? lj_carith_divu64(k1, k2) :
+	 fins->o == IR_MOD ? lj_carith_modu64(k1, k2) :
+			     lj_carith_powu64(k1, k2);
+  }
+  return INT64FOLD(k1);
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BSHL KINT64 KINT)
+LJFOLD(BSHR KINT64 KINT)
+LJFOLD(BSAR KINT64 KINT)
+LJFOLD(BROL KINT64 KINT)
+LJFOLD(BROR KINT64 KINT)
+LJFOLDF(kfold_int64shift)
+{
+#if LJ_HASFFI || LJ_64
+  uint64_t k = ir_k64(fleft)->u64;
+  int32_t sh = (fright->i & 63);
+  switch ((IROp)fins->o) {
+  case IR_BSHL: k <<= sh; break;
+#if LJ_HASFFI
+  case IR_BSHR: k >>= sh; break;
+  case IR_BSAR: k = (uint64_t)((int64_t)k >> sh); break;
+  case IR_BROL: k = lj_rol(k, sh); break;
+  case IR_BROR: k = lj_ror(k, sh); break;
+#endif
+  default: lua_assert(0); break;
+  }
+  return INT64FOLD(k);
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BNOT KINT64)
+LJFOLDF(kfold_bnot64)
+{
+#if LJ_HASFFI
+  return INT64FOLD(~ir_k64(fleft)->u64);
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BSWAP KINT64)
+LJFOLDF(kfold_bswap64)
+{
+#if LJ_HASFFI
+  return INT64FOLD(lj_bswap64(ir_k64(fleft)->u64));
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+LJFOLD(LT KINT64 KINT64)
+LJFOLD(GE KINT64 KINT64)
+LJFOLD(LE KINT64 KINT64)
+LJFOLD(GT KINT64 KINT64)
+LJFOLD(ULT KINT64 KINT64)
+LJFOLD(UGE KINT64 KINT64)
+LJFOLD(ULE KINT64 KINT64)
+LJFOLD(UGT KINT64 KINT64)
+LJFOLDF(kfold_int64comp)
+{
+#if LJ_HASFFI
+  uint64_t a = ir_k64(fleft)->u64, b = ir_k64(fright)->u64;
+  switch ((IROp)fins->o) {
+  case IR_LT: return CONDFOLD(a < b);
+  case IR_GE: return CONDFOLD(a >= b);
+  case IR_LE: return CONDFOLD(a <= b);
+  case IR_GT: return CONDFOLD(a > b);
+  case IR_ULT: return CONDFOLD((uint64_t)a < (uint64_t)b);
+  case IR_UGE: return CONDFOLD((uint64_t)a >= (uint64_t)b);
+  case IR_ULE: return CONDFOLD((uint64_t)a <= (uint64_t)b);
+  case IR_UGT: return CONDFOLD((uint64_t)a > (uint64_t)b);
+  default: lua_assert(0); return FAILFOLD;
+  }
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+LJFOLD(UGE any KINT64)
+LJFOLDF(kfold_int64comp0)
+{
+#if LJ_HASFFI
+  if (ir_k64(fright)->u64 == 0)
+    return DROPFOLD;
+  return NEXTFOLD;
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+/* -- Constant folding for strings ---------------------------------------- */
+
+LJFOLD(SNEW KKPTR KINT)
+LJFOLDF(kfold_snew_kptr)
+{
+  GCstr *s = lj_str_new(J->L, (const char *)ir_kptr(fleft), (size_t)fright->i);
+  return lj_ir_kstr(J, s);
+}
+
+LJFOLD(SNEW any KINT)
+LJFOLDF(kfold_snew_empty)
+{
+  if (fright->i == 0)
+    return lj_ir_kstr(J, &J2G(J)->strempty);
+  return NEXTFOLD;
+}
+
+LJFOLD(STRREF KGC KINT)
+LJFOLDF(kfold_strref)
+{
+  GCstr *str = ir_kstr(fleft);
+  lua_assert((MSize)fright->i <= str->len);
+  return lj_ir_kkptr(J, (char *)strdata(str) + fright->i);
+}
+
+LJFOLD(STRREF SNEW any)
+LJFOLDF(kfold_strref_snew)
+{
+  PHIBARRIER(fleft);
+  if (irref_isk(fins->op2) && fright->i == 0) {
+    return fleft->op1;  /* strref(snew(ptr, len), 0) ==> ptr */
+  } else {
+    /* Reassociate: strref(snew(strref(str, a), len), b) ==> strref(str, a+b) */
+    IRIns *ir = IR(fleft->op1);
+    IRRef1 str = ir->op1;  /* IRIns * is not valid across emitir. */
+    lua_assert(ir->o == IR_STRREF);
+    PHIBARRIER(ir);
+    fins->op2 = emitir(IRTI(IR_ADD), ir->op2, fins->op2);  /* Clobbers fins! */
+    fins->op1 = str;
+    fins->ot = IRT(IR_STRREF, IRT_P32);
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CALLN CARG IRCALL_lj_str_cmp)
+LJFOLDF(kfold_strcmp)
+{
+  if (irref_isk(fleft->op1) && irref_isk(fleft->op2)) {
+    GCstr *a = ir_kstr(IR(fleft->op1));
+    GCstr *b = ir_kstr(IR(fleft->op2));
+    return INTFOLD(lj_str_cmp(a, b));
+  }
+  return NEXTFOLD;
+}
+
+/* -- Constant folding of pointer arithmetic ------------------------------ */
+
+LJFOLD(ADD KGC KINT)
+LJFOLD(ADD KGC KINT64)
+LJFOLDF(kfold_add_kgc)
+{
+  GCobj *o = ir_kgc(fleft);
+#if LJ_64
+  ptrdiff_t ofs = (ptrdiff_t)ir_kint64(fright)->u64;
+#else
+  ptrdiff_t ofs = fright->i;
+#endif
+#if LJ_HASFFI
+  if (irt_iscdata(fleft->t)) {
+    CType *ct = ctype_raw(ctype_ctsG(J2G(J)), gco2cd(o)->ctypeid);
+    if (ctype_isnum(ct->info) || ctype_isenum(ct->info) ||
+	ctype_isptr(ct->info) || ctype_isfunc(ct->info) ||
+	ctype_iscomplex(ct->info) || ctype_isvector(ct->info))
+      return lj_ir_kkptr(J, (char *)o + ofs);
+  }
+#endif
+  return lj_ir_kptr(J, (char *)o + ofs);
+}
+
+LJFOLD(ADD KPTR KINT)
+LJFOLD(ADD KPTR KINT64)
+LJFOLD(ADD KKPTR KINT)
+LJFOLD(ADD KKPTR KINT64)
+LJFOLDF(kfold_add_kptr)
+{
+  void *p = ir_kptr(fleft);
+#if LJ_64
+  ptrdiff_t ofs = (ptrdiff_t)ir_kint64(fright)->u64;
+#else
+  ptrdiff_t ofs = fright->i;
+#endif
+  return lj_ir_kptr_(J, fleft->o, (char *)p + ofs);
+}
+
+LJFOLD(ADD any KGC)
+LJFOLD(ADD any KPTR)
+LJFOLD(ADD any KKPTR)
+LJFOLDF(kfold_add_kright)
+{
+  if (fleft->o == IR_KINT || fleft->o == IR_KINT64) {
+    IRRef1 tmp = fins->op1; fins->op1 = fins->op2; fins->op2 = tmp;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+/* -- Constant folding of conversions ------------------------------------- */
+
+LJFOLD(TOBIT KNUM KNUM)
+LJFOLDF(kfold_tobit)
+{
+  return INTFOLD(lj_num2bit(knumleft));
+}
+
+LJFOLD(CONV KINT IRCONV_NUM_INT)
+LJFOLDF(kfold_conv_kint_num)
+{
+  return lj_ir_knum(J, (lua_Number)fleft->i);
+}
+
+LJFOLD(CONV KINT IRCONV_NUM_U32)
+LJFOLDF(kfold_conv_kintu32_num)
+{
+  return lj_ir_knum(J, (lua_Number)(uint32_t)fleft->i);
+}
+
+LJFOLD(CONV KINT IRCONV_INT_I8)
+LJFOLD(CONV KINT IRCONV_INT_U8)
+LJFOLD(CONV KINT IRCONV_INT_I16)
+LJFOLD(CONV KINT IRCONV_INT_U16)
+LJFOLDF(kfold_conv_kint_ext)
+{
+  int32_t k = fleft->i;
+  if ((fins->op2 & IRCONV_SRCMASK) == IRT_I8) k = (int8_t)k;
+  else if ((fins->op2 & IRCONV_SRCMASK) == IRT_U8) k = (uint8_t)k;
+  else if ((fins->op2 & IRCONV_SRCMASK) == IRT_I16) k = (int16_t)k;
+  else k = (uint16_t)k;
+  return INTFOLD(k);
+}
+
+LJFOLD(CONV KINT IRCONV_I64_INT)
+LJFOLD(CONV KINT IRCONV_U64_INT)
+LJFOLD(CONV KINT IRCONV_I64_U32)
+LJFOLD(CONV KINT IRCONV_U64_U32)
+LJFOLDF(kfold_conv_kint_i64)
+{
+  if ((fins->op2 & IRCONV_SEXT))
+    return INT64FOLD((uint64_t)(int64_t)fleft->i);
+  else
+    return INT64FOLD((uint64_t)(int64_t)(uint32_t)fleft->i);
+}
+
+LJFOLD(CONV KINT64 IRCONV_NUM_I64)
+LJFOLDF(kfold_conv_kint64_num_i64)
+{
+  return lj_ir_knum(J, (lua_Number)(int64_t)ir_kint64(fleft)->u64);
+}
+
+LJFOLD(CONV KINT64 IRCONV_NUM_U64)
+LJFOLDF(kfold_conv_kint64_num_u64)
+{
+  return lj_ir_knum(J, (lua_Number)ir_kint64(fleft)->u64);
+}
+
+LJFOLD(CONV KINT64 IRCONV_INT_I64)
+LJFOLD(CONV KINT64 IRCONV_U32_I64)
+LJFOLDF(kfold_conv_kint64_int_i64)
+{
+  return INTFOLD((int32_t)ir_kint64(fleft)->u64);
+}
+
+LJFOLD(CONV KNUM IRCONV_INT_NUM)
+LJFOLDF(kfold_conv_knum_int_num)
+{
+  lua_Number n = knumleft;
+  if (!(fins->op2 & IRCONV_TRUNC)) {
+    int32_t k = lj_num2int(n);
+    if (irt_isguard(fins->t) && n != (lua_Number)k) {
+      /* We're about to create a guard which always fails, like CONV +1.5.
+      ** Some pathological loops cause this during LICM, e.g.:
+      **   local x,k,t = 0,1.5,{1,[1.5]=2}
+      **   for i=1,200 do x = x+ t[k]; k = k == 1 and 1.5 or 1 end
+      **   assert(x == 300)
+      */
+      return FAILFOLD;
+    }
+    return INTFOLD(k);
+  } else {
+    return INTFOLD((int32_t)n);
+  }
+}
+
+LJFOLD(CONV KNUM IRCONV_U32_NUM)
+LJFOLDF(kfold_conv_knum_u32_num)
+{
+  lua_assert((fins->op2 & IRCONV_TRUNC));
+#ifdef _MSC_VER
+  {  /* Workaround for MSVC bug. */
+    volatile uint32_t u = (uint32_t)knumleft;
+    return INTFOLD((int32_t)u);
+  }
+#else
+  return INTFOLD((int32_t)(uint32_t)knumleft);
+#endif
+}
+
+LJFOLD(CONV KNUM IRCONV_I64_NUM)
+LJFOLDF(kfold_conv_knum_i64_num)
+{
+  lua_assert((fins->op2 & IRCONV_TRUNC));
+  return INT64FOLD((uint64_t)(int64_t)knumleft);
+}
+
+LJFOLD(CONV KNUM IRCONV_U64_NUM)
+LJFOLDF(kfold_conv_knum_u64_num)
+{
+  lua_assert((fins->op2 & IRCONV_TRUNC));
+  return INT64FOLD(lj_num2u64(knumleft));
+}
+
+LJFOLD(TOSTR KNUM)
+LJFOLDF(kfold_tostr_knum)
+{
+  return lj_ir_kstr(J, lj_str_fromnum(J->L, &knumleft));
+}
+
+LJFOLD(TOSTR KINT)
+LJFOLDF(kfold_tostr_kint)
+{
+  return lj_ir_kstr(J, lj_str_fromint(J->L, fleft->i));
+}
+
+LJFOLD(STRTO KGC)
+LJFOLDF(kfold_strto)
+{
+  TValue n;
+  if (lj_strscan_num(ir_kstr(fleft), &n))
+    return lj_ir_knum(J, numV(&n));
+  return FAILFOLD;
+}
+
+/* -- Constant folding of equality checks --------------------------------- */
+
+/* Don't constant-fold away FLOAD checks against KNULL. */
+LJFOLD(EQ FLOAD KNULL)
+LJFOLD(NE FLOAD KNULL)
+LJFOLDX(lj_opt_cse)
+
+/* But fold all other KNULL compares, since only KNULL is equal to KNULL. */
+LJFOLD(EQ any KNULL)
+LJFOLD(NE any KNULL)
+LJFOLD(EQ KNULL any)
+LJFOLD(NE KNULL any)
+LJFOLD(EQ KINT KINT)  /* Constants are unique, so same refs <==> same value. */
+LJFOLD(NE KINT KINT)
+LJFOLD(EQ KINT64 KINT64)
+LJFOLD(NE KINT64 KINT64)
+LJFOLD(EQ KGC KGC)
+LJFOLD(NE KGC KGC)
+LJFOLDF(kfold_kref)
+{
+  return CONDFOLD((fins->op1 == fins->op2) ^ (fins->o == IR_NE));
+}
+
+/* -- Algebraic shortcuts ------------------------------------------------- */
+
+LJFOLD(FPMATH FPMATH IRFPM_FLOOR)
+LJFOLD(FPMATH FPMATH IRFPM_CEIL)
+LJFOLD(FPMATH FPMATH IRFPM_TRUNC)
+LJFOLDF(shortcut_round)
+{
+  IRFPMathOp op = (IRFPMathOp)fleft->op2;
+  if (op == IRFPM_FLOOR || op == IRFPM_CEIL || op == IRFPM_TRUNC)
+    return LEFTFOLD;  /* round(round_left(x)) = round_left(x) */
+  return NEXTFOLD;
+}
+
+LJFOLD(ABS ABS KNUM)
+LJFOLDF(shortcut_left)
+{
+  return LEFTFOLD;  /* f(g(x)) ==> g(x) */
+}
+
+LJFOLD(ABS NEG KNUM)
+LJFOLDF(shortcut_dropleft)
+{
+  PHIBARRIER(fleft);
+  fins->op1 = fleft->op1;  /* abs(neg(x)) ==> abs(x) */
+  return RETRYFOLD;
+}
+
+/* Note: no safe shortcuts with STRTO and TOSTR ("1e2" ==> +100 ==> "100"). */
+LJFOLD(NEG NEG any)
+LJFOLD(BNOT BNOT)
+LJFOLD(BSWAP BSWAP)
+LJFOLDF(shortcut_leftleft)
+{
+  PHIBARRIER(fleft);  /* See above. Fold would be ok, but not beneficial. */
+  return fleft->op1;  /* f(g(x)) ==> x */
+}
+
+/* -- FP algebraic simplifications ---------------------------------------- */
+
+/* FP arithmetic is tricky -- there's not much to simplify.
+** Please note the following common pitfalls before sending "improvements":
+**   x+0 ==> x  is INVALID for x=-0
+**   0-x ==> -x is INVALID for x=+0
+**   x*0 ==> 0  is INVALID for x=-0, x=+-Inf or x=NaN
+*/
+
+LJFOLD(ADD NEG any)
+LJFOLDF(simplify_numadd_negx)
+{
+  PHIBARRIER(fleft);
+  fins->o = IR_SUB;  /* (-a) + b ==> b - a */
+  fins->op1 = fins->op2;
+  fins->op2 = fleft->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(ADD any NEG)
+LJFOLDF(simplify_numadd_xneg)
+{
+  PHIBARRIER(fright);
+  fins->o = IR_SUB;  /* a + (-b) ==> a - b */
+  fins->op2 = fright->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(SUB any KNUM)
+LJFOLDF(simplify_numsub_k)
+{
+  lua_Number n = knumright;
+  if (n == 0.0)  /* x - (+-0) ==> x */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB NEG KNUM)
+LJFOLDF(simplify_numsub_negk)
+{
+  PHIBARRIER(fleft);
+  fins->op2 = fleft->op1;  /* (-x) - k ==> (-k) - x */
+  fins->op1 = (IRRef1)lj_ir_knum(J, -knumright);
+  return RETRYFOLD;
+}
+
+LJFOLD(SUB any NEG)
+LJFOLDF(simplify_numsub_xneg)
+{
+  PHIBARRIER(fright);
+  fins->o = IR_ADD;  /* a - (-b) ==> a + b */
+  fins->op2 = fright->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(MUL any KNUM)
+LJFOLD(DIV any KNUM)
+LJFOLDF(simplify_nummuldiv_k)
+{
+  lua_Number n = knumright;
+  if (n == 1.0) {  /* x o 1 ==> x */
+    return LEFTFOLD;
+  } else if (n == -1.0) {  /* x o -1 ==> -x */
+    fins->o = IR_NEG;
+    fins->op2 = (IRRef1)lj_ir_knum_neg(J);
+    return RETRYFOLD;
+  } else if (fins->o == IR_MUL && n == 2.0) {  /* x * 2 ==> x + x */
+    fins->o = IR_ADD;
+    fins->op2 = fins->op1;
+    return RETRYFOLD;
+  } else if (fins->o == IR_DIV) {  /* x / 2^k ==> x * 2^-k */
+    uint64_t u = ir_knum(fright)->u64;
+    uint32_t ex = ((uint32_t)(u >> 52) & 0x7ff);
+    if ((u & U64x(000fffff,ffffffff)) == 0 && ex - 1 < 0x7fd) {
+      u = (u & ((uint64_t)1 << 63)) | ((uint64_t)(0x7fe - ex) << 52);
+      fins->o = IR_MUL;  /* Multiply by exact reciprocal. */
+      fins->op2 = lj_ir_knum_u64(J, u);
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MUL NEG KNUM)
+LJFOLD(DIV NEG KNUM)
+LJFOLDF(simplify_nummuldiv_negk)
+{
+  PHIBARRIER(fleft);
+  fins->op1 = fleft->op1;  /* (-a) o k ==> a o (-k) */
+  fins->op2 = (IRRef1)lj_ir_knum(J, -knumright);
+  return RETRYFOLD;
+}
+
+LJFOLD(MUL NEG NEG)
+LJFOLD(DIV NEG NEG)
+LJFOLDF(simplify_nummuldiv_negneg)
+{
+  PHIBARRIER(fleft);
+  PHIBARRIER(fright);
+  fins->op1 = fleft->op1;  /* (-a) o (-b) ==> a o b */
+  fins->op2 = fright->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(POW any KINT)
+LJFOLDF(simplify_numpow_xk)
+{
+  int32_t k = fright->i;
+  TRef ref = fins->op1;
+  if (k == 0)  /* x ^ 0 ==> 1 */
+    return lj_ir_knum_one(J);  /* Result must be a number, not an int. */
+  if (k == 1)  /* x ^ 1 ==> x */
+    return LEFTFOLD;
+  if ((uint32_t)(k+65536) > 2*65536u)  /* Limit code explosion. */
+    return NEXTFOLD;
+  if (k < 0) {  /* x ^ (-k) ==> (1/x) ^ k. */
+    ref = emitir(IRTN(IR_DIV), lj_ir_knum_one(J), ref);
+    k = -k;
+  }
+  /* Unroll x^k for 1 <= k <= 65536. */
+  for (; (k & 1) == 0; k >>= 1)  /* Handle leading zeros. */
+    ref = emitir(IRTN(IR_MUL), ref, ref);
+  if ((k >>= 1) != 0) {  /* Handle trailing bits. */
+    TRef tmp = emitir(IRTN(IR_MUL), ref, ref);
+    for (; k != 1; k >>= 1) {
+      if (k & 1)
+	ref = emitir(IRTN(IR_MUL), ref, tmp);
+      tmp = emitir(IRTN(IR_MUL), tmp, tmp);
+    }
+    ref = emitir(IRTN(IR_MUL), ref, tmp);
+  }
+  return ref;
+}
+
+LJFOLD(POW KNUM any)
+LJFOLDF(simplify_numpow_kx)
+{
+  lua_Number n = knumleft;
+  if (n == 2.0) {  /* 2.0 ^ i ==> ldexp(1.0, tonum(i)) */
+    fins->o = IR_CONV;
+#if LJ_TARGET_X86ORX64
+    fins->op1 = fins->op2;
+    fins->op2 = IRCONV_NUM_INT;
+    fins->op2 = (IRRef1)lj_opt_fold(J);
+#endif
+    fins->op1 = (IRRef1)lj_ir_knum_one(J);
+    fins->o = IR_LDEXP;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+/* -- Simplify conversions ------------------------------------------------ */
+
+LJFOLD(CONV CONV IRCONV_NUM_INT)  /* _NUM */
+LJFOLDF(shortcut_conv_num_int)
+{
+  PHIBARRIER(fleft);
+  /* Only safe with a guarded conversion to int. */
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_NUM && irt_isguard(fleft->t))
+    return fleft->op1;  /* f(g(x)) ==> x */
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_INT_NUM)  /* _INT */
+LJFOLD(CONV CONV IRCONV_U32_NUM)  /* _U32*/
+LJFOLDF(simplify_conv_int_num)
+{
+  /* Fold even across PHI to avoid expensive num->int conversions in loop. */
+  if ((fleft->op2 & IRCONV_SRCMASK) ==
+      ((fins->op2 & IRCONV_DSTMASK) >> IRCONV_DSH))
+    return fleft->op1;
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_I64_NUM)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_U64_NUM)  /* _INT or _U32 */
+LJFOLDF(simplify_conv_i64_num)
+{
+  PHIBARRIER(fleft);
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT) {
+    /* Reduce to a sign-extension. */
+    fins->op1 = fleft->op1;
+    fins->op2 = ((IRT_I64<<5)|IRT_INT|IRCONV_SEXT);
+    return RETRYFOLD;
+  } else if ((fleft->op2 & IRCONV_SRCMASK) == IRT_U32) {
+#if LJ_TARGET_X64
+    return fleft->op1;
+#else
+    /* Reduce to a zero-extension. */
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRT_I64<<5)|IRT_U32;
+    return RETRYFOLD;
+#endif
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_INT_I64)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_INT_U64)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_U32_I64)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_U32_U64)  /* _INT or _U32 */
+LJFOLDF(simplify_conv_int_i64)
+{
+  int src;
+  PHIBARRIER(fleft);
+  src = (fleft->op2 & IRCONV_SRCMASK);
+  if (src == IRT_INT || src == IRT_U32) {
+    if (src == ((fins->op2 & IRCONV_DSTMASK) >> IRCONV_DSH)) {
+      return fleft->op1;
+    } else {
+      fins->op2 = ((fins->op2 & IRCONV_DSTMASK) | src);
+      fins->op1 = fleft->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_FLOAT_NUM)  /* _FLOAT */
+LJFOLDF(simplify_conv_flt_num)
+{
+  PHIBARRIER(fleft);
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_FLOAT)
+    return fleft->op1;
+  return NEXTFOLD;
+}
+
+/* Shortcut TOBIT + IRT_NUM <- IRT_INT/IRT_U32 conversion. */
+LJFOLD(TOBIT CONV KNUM)
+LJFOLDF(simplify_tobit_conv)
+{
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT ||
+      (fleft->op2 & IRCONV_SRCMASK) == IRT_U32) {
+    /* Fold even across PHI to avoid expensive num->int conversions in loop. */
+    lua_assert(irt_isnum(fleft->t));
+    return fleft->op1;
+  }
+  return NEXTFOLD;
+}
+
+/* Shortcut floor/ceil/round + IRT_NUM <- IRT_INT/IRT_U32 conversion. */
+LJFOLD(FPMATH CONV IRFPM_FLOOR)
+LJFOLD(FPMATH CONV IRFPM_CEIL)
+LJFOLD(FPMATH CONV IRFPM_TRUNC)
+LJFOLDF(simplify_floor_conv)
+{
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT ||
+      (fleft->op2 & IRCONV_SRCMASK) == IRT_U32)
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+/* Strength reduction of widening. */
+LJFOLD(CONV any IRCONV_I64_INT)
+LJFOLD(CONV any IRCONV_U64_INT)
+LJFOLDF(simplify_conv_sext)
+{
+  IRRef ref = fins->op1;
+  int64_t ofs = 0;
+  if (!(fins->op2 & IRCONV_SEXT))
+    return NEXTFOLD;
+  PHIBARRIER(fleft);
+  if (fleft->o == IR_XLOAD && (irt_isu8(fleft->t) || irt_isu16(fleft->t)))
+    goto ok_reduce;
+  if (fleft->o == IR_ADD && irref_isk(fleft->op2)) {
+    ofs = (int64_t)IR(fleft->op2)->i;
+    ref = fleft->op1;
+  }
+  /* Use scalar evolution analysis results to strength-reduce sign-extension. */
+  if (ref == J->scev.idx) {
+    IRRef lo = J->scev.dir ? J->scev.start : J->scev.stop;
+    lua_assert(irt_isint(J->scev.t));
+    if (lo && IR(lo)->i + ofs >= 0) {
+    ok_reduce:
+#if LJ_TARGET_X64
+      /* Eliminate widening. All 32 bit ops do an implicit zero-extension. */
+      return LEFTFOLD;
+#else
+      /* Reduce to a (cheaper) zero-extension. */
+      fins->op2 &= ~IRCONV_SEXT;
+      return RETRYFOLD;
+#endif
+    }
+  }
+  return NEXTFOLD;
+}
+
+/* Strength reduction of narrowing. */
+LJFOLD(CONV ADD IRCONV_INT_I64)
+LJFOLD(CONV SUB IRCONV_INT_I64)
+LJFOLD(CONV MUL IRCONV_INT_I64)
+LJFOLD(CONV ADD IRCONV_INT_U64)
+LJFOLD(CONV SUB IRCONV_INT_U64)
+LJFOLD(CONV MUL IRCONV_INT_U64)
+LJFOLD(CONV ADD IRCONV_U32_I64)
+LJFOLD(CONV SUB IRCONV_U32_I64)
+LJFOLD(CONV MUL IRCONV_U32_I64)
+LJFOLD(CONV ADD IRCONV_U32_U64)
+LJFOLD(CONV SUB IRCONV_U32_U64)
+LJFOLD(CONV MUL IRCONV_U32_U64)
+LJFOLDF(simplify_conv_narrow)
+{
+  IROp op = (IROp)fleft->o;
+  IRType t = irt_type(fins->t);
+  IRRef op1 = fleft->op1, op2 = fleft->op2, mode = fins->op2;
+  PHIBARRIER(fleft);
+  op1 = emitir(IRTI(IR_CONV), op1, mode);
+  op2 = emitir(IRTI(IR_CONV), op2, mode);
+  fins->ot = IRT(op, t);
+  fins->op1 = op1;
+  fins->op2 = op2;
+  return RETRYFOLD;
+}
+
+/* Special CSE rule for CONV. */
+LJFOLD(CONV any any)
+LJFOLDF(cse_conv)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    IRRef op1 = fins->op1, op2 = (fins->op2 & IRCONV_MODEMASK);
+    uint8_t guard = irt_isguard(fins->t);
+    IRRef ref = J->chain[IR_CONV];
+    while (ref > op1) {
+      IRIns *ir = IR(ref);
+      /* Commoning with stronger checks is ok. */
+      if (ir->op1 == op1 && (ir->op2 & IRCONV_MODEMASK) == op2 &&
+	  irt_isguard(ir->t) >= guard)
+	return ref;
+      ref = ir->prev;
+    }
+  }
+  return EMITFOLD;  /* No fallthrough to regular CSE. */
+}
+
+/* FP conversion narrowing. */
+LJFOLD(TOBIT ADD KNUM)
+LJFOLD(TOBIT SUB KNUM)
+LJFOLD(CONV ADD IRCONV_INT_NUM)
+LJFOLD(CONV SUB IRCONV_INT_NUM)
+LJFOLD(CONV ADD IRCONV_I64_NUM)
+LJFOLD(CONV SUB IRCONV_I64_NUM)
+LJFOLDF(narrow_convert)
+{
+  PHIBARRIER(fleft);
+  /* Narrowing ignores PHIs and repeating it inside the loop is not useful. */
+  if (J->chain[IR_LOOP])
+    return NEXTFOLD;
+  lua_assert(fins->o != IR_CONV || (fins->op2&IRCONV_CONVMASK) != IRCONV_TOBIT);
+  return lj_opt_narrow_convert(J);
+}
+
+/* -- Integer algebraic simplifications ----------------------------------- */
+
+LJFOLD(ADD any KINT)
+LJFOLD(ADDOV any KINT)
+LJFOLD(SUBOV any KINT)
+LJFOLDF(simplify_intadd_k)
+{
+  if (fright->i == 0)  /* i o 0 ==> i */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(MULOV any KINT)
+LJFOLDF(simplify_intmul_k)
+{
+  if (fright->i == 0)  /* i * 0 ==> 0 */
+    return RIGHTFOLD;
+  if (fright->i == 1)  /* i * 1 ==> i */
+    return LEFTFOLD;
+  if (fright->i == 2) {  /* i * 2 ==> i + i */
+    fins->o = IR_ADDOV;
+    fins->op2 = fins->op1;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any KINT)
+LJFOLDF(simplify_intsub_k)
+{
+  if (fright->i == 0)  /* i - 0 ==> i */
+    return LEFTFOLD;
+  fins->o = IR_ADD;  /* i - k ==> i + (-k) */
+  fins->op2 = (IRRef1)lj_ir_kint(J, -fright->i);  /* Overflow for -2^31 ok. */
+  return RETRYFOLD;
+}
+
+LJFOLD(SUB KINT any)
+LJFOLD(SUB KINT64 any)
+LJFOLDF(simplify_intsub_kleft)
+{
+  if (fleft->o == IR_KINT ? (fleft->i == 0) : (ir_kint64(fleft)->u64 == 0)) {
+    fins->o = IR_NEG;  /* 0 - i ==> -i */
+    fins->op1 = fins->op2;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(ADD any KINT64)
+LJFOLDF(simplify_intadd_k64)
+{
+  if (ir_kint64(fright)->u64 == 0)  /* i + 0 ==> i */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any KINT64)
+LJFOLDF(simplify_intsub_k64)
+{
+  uint64_t k = ir_kint64(fright)->u64;
+  if (k == 0)  /* i - 0 ==> i */
+    return LEFTFOLD;
+  fins->o = IR_ADD;  /* i - k ==> i + (-k) */
+  fins->op2 = (IRRef1)lj_ir_kint64(J, (uint64_t)-(int64_t)k);
+  return RETRYFOLD;
+}
+
+static TRef simplify_intmul_k(jit_State *J, int32_t k)
+{
+  /* Note: many more simplifications are possible, e.g. 2^k1 +- 2^k2.
+  ** But this is mainly intended for simple address arithmetic.
+  ** Also it's easier for the backend to optimize the original multiplies.
+  */
+  if (k == 1) {  /* i * 1 ==> i */
+    return LEFTFOLD;
+  } else if ((k & (k-1)) == 0) {  /* i * 2^k ==> i << k */
+    fins->o = IR_BSHL;
+    fins->op2 = lj_ir_kint(J, lj_fls((uint32_t)k));
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MUL any KINT)
+LJFOLDF(simplify_intmul_k32)
+{
+  if (fright->i == 0)  /* i * 0 ==> 0 */
+    return INTFOLD(0);
+  else if (fright->i > 0)
+    return simplify_intmul_k(J, fright->i);
+  return NEXTFOLD;
+}
+
+LJFOLD(MUL any KINT64)
+LJFOLDF(simplify_intmul_k64)
+{
+  if (ir_kint64(fright)->u64 == 0)  /* i * 0 ==> 0 */
+    return INT64FOLD(0);
+#if LJ_64
+  /* NYI: SPLIT for BSHL and 32 bit backend support. */
+  else if (ir_kint64(fright)->u64 < 0x80000000u)
+    return simplify_intmul_k(J, (int32_t)ir_kint64(fright)->u64);
+#endif
+  return NEXTFOLD;
+}
+
+LJFOLD(MOD any KINT)
+LJFOLDF(simplify_intmod_k)
+{
+  int32_t k = fright->i;
+  lua_assert(k != 0);
+  if (k > 0 && (k & (k-1)) == 0) {  /* i % (2^k) ==> i & (2^k-1) */
+    fins->o = IR_BAND;
+    fins->op2 = lj_ir_kint(J, k-1);
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MOD KINT any)
+LJFOLDF(simplify_intmod_kleft)
+{
+  if (fleft->i == 0)
+    return INTFOLD(0);
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any any)
+LJFOLD(SUBOV any any)
+LJFOLDF(simplify_intsub)
+{
+  if (fins->op1 == fins->op2 && !irt_isnum(fins->t))  /* i - i ==> 0 */
+    return irt_is64(fins->t) ? INT64FOLD(0) : INTFOLD(0);
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB ADD any)
+LJFOLDF(simplify_intsubadd_leftcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fleft);
+    if (fins->op2 == fleft->op1)  /* (i + j) - i ==> j */
+      return fleft->op2;
+    if (fins->op2 == fleft->op2)  /* (i + j) - j ==> i */
+      return fleft->op1;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB SUB any)
+LJFOLDF(simplify_intsubsub_leftcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fleft);
+    if (fins->op2 == fleft->op1) {  /* (i - j) - i ==> 0 - j */
+      fins->op1 = (IRRef1)lj_ir_kint(J, 0);
+      fins->op2 = fleft->op2;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any SUB)
+LJFOLDF(simplify_intsubsub_rightcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fright);
+    if (fins->op1 == fright->op1)  /* i - (i - j) ==> j */
+      return fright->op2;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any ADD)
+LJFOLDF(simplify_intsubadd_rightcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fright);
+    if (fins->op1 == fright->op1) {  /* i - (i + j) ==> 0 - j */
+      fins->op2 = fright->op2;
+      fins->op1 = (IRRef1)lj_ir_kint(J, 0);
+      return RETRYFOLD;
+    }
+    if (fins->op1 == fright->op2) {  /* i - (j + i) ==> 0 - j */
+      fins->op2 = fright->op1;
+      fins->op1 = (IRRef1)lj_ir_kint(J, 0);
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB ADD ADD)
+LJFOLDF(simplify_intsubaddadd_cancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fleft);
+    PHIBARRIER(fright);
+    if (fleft->op1 == fright->op1) {  /* (i + j1) - (i + j2) ==> j1 - j2 */
+      fins->op1 = fleft->op2;
+      fins->op2 = fright->op2;
+      return RETRYFOLD;
+    }
+    if (fleft->op1 == fright->op2) {  /* (i + j1) - (j2 + i) ==> j1 - j2 */
+      fins->op1 = fleft->op2;
+      fins->op2 = fright->op1;
+      return RETRYFOLD;
+    }
+    if (fleft->op2 == fright->op1) {  /* (j1 + i) - (i + j2) ==> j1 - j2 */
+      fins->op1 = fleft->op1;
+      fins->op2 = fright->op2;
+      return RETRYFOLD;
+    }
+    if (fleft->op2 == fright->op2) {  /* (j1 + i) - (j2 + i) ==> j1 - j2 */
+      fins->op1 = fleft->op1;
+      fins->op2 = fright->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND any KINT)
+LJFOLD(BAND any KINT64)
+LJFOLDF(simplify_band_k)
+{
+  int64_t k = fright->o == IR_KINT ? (int64_t)fright->i :
+				     (int64_t)ir_k64(fright)->u64;
+  if (k == 0)  /* i & 0 ==> 0 */
+    return RIGHTFOLD;
+  if (k == -1)  /* i & -1 ==> i */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BOR any KINT)
+LJFOLD(BOR any KINT64)
+LJFOLDF(simplify_bor_k)
+{
+  int64_t k = fright->o == IR_KINT ? (int64_t)fright->i :
+				     (int64_t)ir_k64(fright)->u64;
+  if (k == 0)  /* i | 0 ==> i */
+    return LEFTFOLD;
+  if (k == -1)  /* i | -1 ==> -1 */
+    return RIGHTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BXOR any KINT)
+LJFOLD(BXOR any KINT64)
+LJFOLDF(simplify_bxor_k)
+{
+  int64_t k = fright->o == IR_KINT ? (int64_t)fright->i :
+				     (int64_t)ir_k64(fright)->u64;
+  if (k == 0)  /* i xor 0 ==> i */
+    return LEFTFOLD;
+  if (k == -1) {  /* i xor -1 ==> ~i */
+    fins->o = IR_BNOT;
+    fins->op2 = 0;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL any KINT)
+LJFOLD(BSHR any KINT)
+LJFOLD(BSAR any KINT)
+LJFOLD(BROL any KINT)
+LJFOLD(BROR any KINT)
+LJFOLDF(simplify_shift_ik)
+{
+  int32_t mask = irt_is64(fins->t) ? 63 : 31;
+  int32_t k = (fright->i & mask);
+  if (k == 0)  /* i o 0 ==> i */
+    return LEFTFOLD;
+  if (k == 1 && fins->o == IR_BSHL) {  /* i << 1 ==> i + i */
+    fins->o = IR_ADD;
+    fins->op2 = fins->op1;
+    return RETRYFOLD;
+  }
+  if (k != fright->i) {  /* i o k ==> i o (k & mask) */
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    return RETRYFOLD;
+  }
+#ifndef LJ_TARGET_UNIFYROT
+  if (fins->o == IR_BROR) {  /* bror(i, k) ==> brol(i, (-k)&mask) */
+    fins->o = IR_BROL;
+    fins->op2 = (IRRef1)lj_ir_kint(J, (-k)&mask);
+    return RETRYFOLD;
+  }
+#endif
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL any BAND)
+LJFOLD(BSHR any BAND)
+LJFOLD(BSAR any BAND)
+LJFOLD(BROL any BAND)
+LJFOLD(BROR any BAND)
+LJFOLDF(simplify_shift_andk)
+{
+  IRIns *irk = IR(fright->op2);
+  PHIBARRIER(fright);
+  if ((fins->o < IR_BROL ? LJ_TARGET_MASKSHIFT : LJ_TARGET_MASKROT) &&
+      irk->o == IR_KINT) {  /* i o (j & mask) ==> i o j */
+    int32_t mask = irt_is64(fins->t) ? 63 : 31;
+    int32_t k = irk->i & mask;
+    if (k == mask) {
+      fins->op2 = fright->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL KINT any)
+LJFOLD(BSHR KINT any)
+LJFOLD(BSHL KINT64 any)
+LJFOLD(BSHR KINT64 any)
+LJFOLDF(simplify_shift1_ki)
+{
+  int64_t k = fleft->o == IR_KINT ? (int64_t)fleft->i :
+				    (int64_t)ir_k64(fleft)->u64;
+  if (k == 0)  /* 0 o i ==> 0 */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BSAR KINT any)
+LJFOLD(BROL KINT any)
+LJFOLD(BROR KINT any)
+LJFOLD(BSAR KINT64 any)
+LJFOLD(BROL KINT64 any)
+LJFOLD(BROR KINT64 any)
+LJFOLDF(simplify_shift2_ki)
+{
+  int64_t k = fleft->o == IR_KINT ? (int64_t)fleft->i :
+				    (int64_t)ir_k64(fleft)->u64;
+  if (k == 0 || k == -1)  /* 0 o i ==> 0; -1 o i ==> -1 */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL BAND KINT)
+LJFOLD(BSHR BAND KINT)
+LJFOLD(BROL BAND KINT)
+LJFOLD(BROR BAND KINT)
+LJFOLDF(simplify_shiftk_andk)
+{
+  IRIns *irk = IR(fleft->op2);
+  PHIBARRIER(fleft);
+  if (irk->o == IR_KINT) {  /* (i & k1) o k2 ==> (i o k2) & (k1 o k2) */
+    int32_t k = kfold_intop(irk->i, fright->i, (IROp)fins->o);
+    fins->op1 = fleft->op1;
+    fins->op1 = (IRRef1)lj_opt_fold(J);
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    fins->ot = IRTI(IR_BAND);
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND BSHL KINT)
+LJFOLD(BAND BSHR KINT)
+LJFOLDF(simplify_andk_shiftk)
+{
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT &&
+      kfold_intop(-1, irk->i, (IROp)fleft->o) == fright->i)
+    return LEFTFOLD;  /* (i o k1) & k2 ==> i, if (-1 o k1) == k2 */
+  return NEXTFOLD;
+}
+
+/* -- Reassociation ------------------------------------------------------- */
+
+LJFOLD(ADD ADD KINT)
+LJFOLD(MUL MUL KINT)
+LJFOLD(BAND BAND KINT)
+LJFOLD(BOR BOR KINT)
+LJFOLD(BXOR BXOR KINT)
+LJFOLDF(reassoc_intarith_k)
+{
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT) {
+    int32_t k = kfold_intop(irk->i, fright->i, (IROp)fins->o);
+    if (k == irk->i)  /* (i o k1) o k2 ==> i o k1, if (k1 o k2) == k1. */
+      return LEFTFOLD;
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    return RETRYFOLD;  /* (i o k1) o k2 ==> i o (k1 o k2) */
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(ADD ADD KINT64)
+LJFOLD(MUL MUL KINT64)
+LJFOLD(BAND BAND KINT64)
+LJFOLD(BOR BOR KINT64)
+LJFOLD(BXOR BXOR KINT64)
+LJFOLDF(reassoc_intarith_k64)
+{
+#if LJ_HASFFI || LJ_64
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT64) {
+    uint64_t k = kfold_int64arith(ir_k64(irk)->u64,
+				  ir_k64(fright)->u64, (IROp)fins->o);
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint64(J, k);
+    return RETRYFOLD;  /* (i o k1) o k2 ==> i o (k1 o k2) */
+  }
+  return NEXTFOLD;
+#else
+  UNUSED(J); lua_assert(0); return FAILFOLD;
+#endif
+}
+
+LJFOLD(MIN MIN any)
+LJFOLD(MAX MAX any)
+LJFOLD(BAND BAND any)
+LJFOLD(BOR BOR any)
+LJFOLDF(reassoc_dup)
+{
+  if (fins->op2 == fleft->op1 || fins->op2 == fleft->op2)
+    return LEFTFOLD;  /* (a o b) o a ==> a o b; (a o b) o b ==> a o b */
+  return NEXTFOLD;
+}
+
+LJFOLD(BXOR BXOR any)
+LJFOLDF(reassoc_bxor)
+{
+  PHIBARRIER(fleft);
+  if (fins->op2 == fleft->op1)  /* (a xor b) xor a ==> b */
+    return fleft->op2;
+  if (fins->op2 == fleft->op2)  /* (a xor b) xor b ==> a */
+    return fleft->op1;
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL BSHL KINT)
+LJFOLD(BSHR BSHR KINT)
+LJFOLD(BSAR BSAR KINT)
+LJFOLD(BROL BROL KINT)
+LJFOLD(BROR BROR KINT)
+LJFOLDF(reassoc_shift)
+{
+  IRIns *irk = IR(fleft->op2);
+  PHIBARRIER(fleft);  /* The (shift any KINT) rule covers k2 == 0 and more. */
+  if (irk->o == IR_KINT) {  /* (i o k1) o k2 ==> i o (k1 + k2) */
+    int32_t mask = irt_is64(fins->t) ? 63 : 31;
+    int32_t k = (irk->i & mask) + (fright->i & mask);
+    if (k > mask) {  /* Combined shift too wide? */
+      if (fins->o == IR_BSHL || fins->o == IR_BSHR)
+	return mask == 31 ? INTFOLD(0) : INT64FOLD(0);
+      else if (fins->o == IR_BSAR)
+	k = mask;
+      else
+	k &= mask;
+    }
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MIN MIN KNUM)
+LJFOLD(MAX MAX KNUM)
+LJFOLD(MIN MIN KINT)
+LJFOLD(MAX MAX KINT)
+LJFOLDF(reassoc_minmax_k)
+{
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KNUM) {
+    lua_Number a = ir_knum(irk)->n;
+    lua_Number y = lj_vm_foldarith(a, knumright, fins->o - IR_ADD);
+    if (a == y)  /* (x o k1) o k2 ==> x o k1, if (k1 o k2) == k1. */
+      return LEFTFOLD;
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_knum(J, y);
+    return RETRYFOLD;  /* (x o k1) o k2 ==> x o (k1 o k2) */
+  } else if (irk->o == IR_KINT) {
+    int32_t a = irk->i;
+    int32_t y = kfold_intop(a, fright->i, fins->o);
+    if (a == y)  /* (x o k1) o k2 ==> x o k1, if (k1 o k2) == k1. */
+      return LEFTFOLD;
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint(J, y);
+    return RETRYFOLD;  /* (x o k1) o k2 ==> x o (k1 o k2) */
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MIN MAX any)
+LJFOLD(MAX MIN any)
+LJFOLDF(reassoc_minmax_left)
+{
+  if (fins->op2 == fleft->op1 || fins->op2 == fleft->op2)
+    return RIGHTFOLD;  /* (b o1 a) o2 b ==> b; (a o1 b) o2 b ==> b */
+  return NEXTFOLD;
+}
+
+LJFOLD(MIN any MAX)
+LJFOLD(MAX any MIN)
+LJFOLDF(reassoc_minmax_right)
+{
+  if (fins->op1 == fright->op1 || fins->op1 == fright->op2)
+    return LEFTFOLD;  /* a o2 (a o1 b) ==> a; a o2 (b o1 a) ==> a */
+  return NEXTFOLD;
+}
+
+/* -- Array bounds check elimination -------------------------------------- */
+
+/* Eliminate ABC across PHIs to handle t[i-1] forwarding case.
+** ABC(asize, (i+k)+(-k)) ==> ABC(asize, i), but only if it already exists.
+** Could be generalized to (i+k1)+k2 ==> i+(k1+k2), but needs better disambig.
+*/
+LJFOLD(ABC any ADD)
+LJFOLDF(abc_fwd)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_ABC)) {
+    if (irref_isk(fright->op2)) {
+      IRIns *add2 = IR(fright->op1);
+      if (add2->o == IR_ADD && irref_isk(add2->op2) &&
+	  IR(fright->op2)->i == -IR(add2->op2)->i) {
+	IRRef ref = J->chain[IR_ABC];
+	IRRef lim = add2->op1;
+	if (fins->op1 > lim) lim = fins->op1;
+	while (ref > lim) {
+	  IRIns *ir = IR(ref);
+	  if (ir->op1 == fins->op1 && ir->op2 == add2->op1)
+	    return DROPFOLD;
+	  ref = ir->prev;
+	}
+      }
+    }
+  }
+  return NEXTFOLD;
+}
+
+/* Eliminate ABC for constants.
+** ABC(asize, k1), ABC(asize k2) ==> ABC(asize, max(k1, k2))
+** Drop second ABC if k2 is lower. Otherwise patch first ABC with k2.
+*/
+LJFOLD(ABC any KINT)
+LJFOLDF(abc_k)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_ABC)) {
+    IRRef ref = J->chain[IR_ABC];
+    IRRef asize = fins->op1;
+    while (ref > asize) {
+      IRIns *ir = IR(ref);
+      if (ir->op1 == asize && irref_isk(ir->op2)) {
+	int32_t k = IR(ir->op2)->i;
+	if (fright->i > k)
+	  ir->op2 = fins->op2;
+	return DROPFOLD;
+      }
+      ref = ir->prev;
+    }
+    return EMITFOLD;  /* Already performed CSE. */
+  }
+  return NEXTFOLD;
+}
+
+/* Eliminate invariant ABC inside loop. */
+LJFOLD(ABC any any)
+LJFOLDF(abc_invar)
+{
+  /* Invariant ABC marked as PTR. Drop if op1 is invariant, too. */
+  if (!irt_isint(fins->t) && fins->op1 < J->chain[IR_LOOP] &&
+      !irt_isphi(IR(fins->op1)->t))
+    return DROPFOLD;
+  return NEXTFOLD;
+}
+
+/* -- Commutativity ------------------------------------------------------- */
+
+/* The refs of commutative ops are canonicalized. Lower refs go to the right.
+** Rationale behind this:
+** - It (also) moves constants to the right.
+** - It reduces the number of FOLD rules (e.g. (BOR any KINT) suffices).
+** - It helps CSE to find more matches.
+** - The assembler generates better code with constants at the right.
+*/
+
+LJFOLD(ADD any any)
+LJFOLD(MUL any any)
+LJFOLD(ADDOV any any)
+LJFOLD(MULOV any any)
+LJFOLDF(comm_swap)
+{
+  if (fins->op1 < fins->op2) {  /* Move lower ref to the right. */
+    IRRef1 tmp = fins->op1;
+    fins->op1 = fins->op2;
+    fins->op2 = tmp;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(EQ any any)
+LJFOLD(NE any any)
+LJFOLDF(comm_equal)
+{
+  /* For non-numbers only: x == x ==> drop; x ~= x ==> fail */
+  if (fins->op1 == fins->op2 && !irt_isnum(fins->t))
+    return CONDFOLD(fins->o == IR_EQ);
+  return fold_comm_swap(J);
+}
+
+LJFOLD(LT any any)
+LJFOLD(GE any any)
+LJFOLD(LE any any)
+LJFOLD(GT any any)
+LJFOLD(ULT any any)
+LJFOLD(UGE any any)
+LJFOLD(ULE any any)
+LJFOLD(UGT any any)
+LJFOLDF(comm_comp)
+{
+  /* For non-numbers only: x <=> x ==> drop; x <> x ==> fail */
+  if (fins->op1 == fins->op2 && !irt_isnum(fins->t))
+    return CONDFOLD((fins->o ^ (fins->o >> 1)) & 1);
+  if (fins->op1 < fins->op2) {  /* Move lower ref to the right. */
+    IRRef1 tmp = fins->op1;
+    fins->op1 = fins->op2;
+    fins->op2 = tmp;
+    fins->o ^= 3; /* GT <-> LT, GE <-> LE, does not affect U */
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND any any)
+LJFOLD(BOR any any)
+LJFOLD(MIN any any)
+LJFOLD(MAX any any)
+LJFOLDF(comm_dup)
+{
+  if (fins->op1 == fins->op2)  /* x o x ==> x */
+    return LEFTFOLD;
+  return fold_comm_swap(J);
+}
+
+LJFOLD(BXOR any any)
+LJFOLDF(comm_bxor)
+{
+  if (fins->op1 == fins->op2)  /* i xor i ==> 0 */
+    return irt_is64(fins->t) ? INT64FOLD(0) : INTFOLD(0);
+  return fold_comm_swap(J);
+}
+
+/* -- Simplification of compound expressions ------------------------------ */
+
+static TRef kfold_xload(jit_State *J, IRIns *ir, const void *p)
+{
+  int32_t k;
+  switch (irt_type(ir->t)) {
+  case IRT_NUM: return lj_ir_knum_u64(J, *(uint64_t *)p);
+  case IRT_I8: k = (int32_t)*(int8_t *)p; break;
+  case IRT_U8: k = (int32_t)*(uint8_t *)p; break;
+  case IRT_I16: k = (int32_t)(int16_t)lj_getu16(p); break;
+  case IRT_U16: k = (int32_t)(uint16_t)lj_getu16(p); break;
+  case IRT_INT: case IRT_U32: k = (int32_t)lj_getu32(p); break;
+  case IRT_I64: case IRT_U64: return lj_ir_kint64(J, *(uint64_t *)p);
+  default: return 0;
+  }
+  return lj_ir_kint(J, k);
+}
+
+/* Turn: string.sub(str, a, b) == kstr
+** into: string.byte(str, a) == string.byte(kstr, 1) etc.
+** Note: this creates unaligned XLOADs on x86/x64.
+*/
+LJFOLD(EQ SNEW KGC)
+LJFOLD(NE SNEW KGC)
+LJFOLDF(merge_eqne_snew_kgc)
+{
+  GCstr *kstr = ir_kstr(fright);
+  int32_t len = (int32_t)kstr->len;
+  lua_assert(irt_isstr(fins->t));
+
+#if LJ_TARGET_UNALIGNED
+#define FOLD_SNEW_MAX_LEN	4  /* Handle string lengths 0, 1, 2, 3, 4. */
+#define FOLD_SNEW_TYPE8		IRT_I8	/* Creates shorter immediates. */
+#else
+#define FOLD_SNEW_MAX_LEN	1  /* Handle string lengths 0 or 1. */
+#define FOLD_SNEW_TYPE8		IRT_U8  /* Prefer unsigned loads. */
+#endif
+
+  PHIBARRIER(fleft);
+  if (len <= FOLD_SNEW_MAX_LEN) {
+    IROp op = (IROp)fins->o;
+    IRRef strref = fleft->op1;
+    lua_assert(IR(strref)->o == IR_STRREF);
+    if (op == IR_EQ) {
+      emitir(IRTGI(IR_EQ), fleft->op2, lj_ir_kint(J, len));
+      /* Caveat: fins/fleft/fright is no longer valid after emitir. */
+    } else {
+      /* NE is not expanded since this would need an OR of two conds. */
+      if (!irref_isk(fleft->op2))  /* Only handle the constant length case. */
+	return NEXTFOLD;
+      if (IR(fleft->op2)->i != len)
+	return DROPFOLD;
+    }
+    if (len > 0) {
+      /* A 4 byte load for length 3 is ok -- all strings have an extra NUL. */
+      uint16_t ot = (uint16_t)(len == 1 ? IRT(IR_XLOAD, FOLD_SNEW_TYPE8) :
+			       len == 2 ? IRT(IR_XLOAD, IRT_U16) :
+			       IRTI(IR_XLOAD));
+      TRef tmp = emitir(ot, strref,
+			IRXLOAD_READONLY | (len > 1 ? IRXLOAD_UNALIGNED : 0));
+      TRef val = kfold_xload(J, IR(tref_ref(tmp)), strdata(kstr));
+      if (len == 3)
+	tmp = emitir(IRTI(IR_BAND), tmp,
+		     lj_ir_kint(J, LJ_ENDIAN_SELECT(0x00ffffff, 0xffffff00)));
+      fins->op1 = (IRRef1)tmp;
+      fins->op2 = (IRRef1)val;
+      fins->ot = (IROpT)IRTGI(op);
+      return RETRYFOLD;
+    } else {
+      return DROPFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+/* -- Loads --------------------------------------------------------------- */
+
+/* Loads cannot be folded or passed on to CSE in general.
+** Alias analysis is needed to check for forwarding opportunities.
+**
+** Caveat: *all* loads must be listed here or they end up at CSE!
+*/
+
+LJFOLD(ALOAD any)
+LJFOLDX(lj_opt_fwd_aload)
+
+/* From HREF fwd (see below). Must eliminate, not supported by fwd/backend. */
+LJFOLD(HLOAD KKPTR)
+LJFOLDF(kfold_hload_kkptr)
+{
+  UNUSED(J);
+  lua_assert(ir_kptr(fleft) == niltvg(J2G(J)));
+  return TREF_NIL;
+}
+
+LJFOLD(HLOAD any)
+LJFOLDX(lj_opt_fwd_hload)
+
+LJFOLD(ULOAD any)
+LJFOLDX(lj_opt_fwd_uload)
+
+LJFOLD(CALLL any IRCALL_lj_tab_len)
+LJFOLDX(lj_opt_fwd_tab_len)
+
+/* Upvalue refs are really loads, but there are no corresponding stores.
+** So CSE is ok for them, except for UREFO across a GC step (see below).
+** If the referenced function is const, its upvalue addresses are const, too.
+** This can be used to improve CSE by looking for the same address,
+** even if the upvalues originate from a different function.
+*/
+LJFOLD(UREFO KGC any)
+LJFOLD(UREFC KGC any)
+LJFOLDF(cse_uref)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    IRRef ref = J->chain[fins->o];
+    GCfunc *fn = ir_kfunc(fleft);
+    GCupval *uv = gco2uv(gcref(fn->l.uvptr[(fins->op2 >> 8)]));
+    while (ref > 0) {
+      IRIns *ir = IR(ref);
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn2 = ir_kfunc(IR(ir->op1));
+	if (gco2uv(gcref(fn2->l.uvptr[(ir->op2 >> 8)])) == uv) {
+	  if (fins->o == IR_UREFO && gcstep_barrier(J, ref))
+	    break;
+	  return ref;
+	}
+      }
+      ref = ir->prev;
+    }
+  }
+  return EMITFOLD;
+}
+
+LJFOLD(HREFK any any)
+LJFOLDX(lj_opt_fwd_hrefk)
+
+LJFOLD(HREF TNEW any)
+LJFOLDF(fwd_href_tnew)
+{
+  if (lj_opt_fwd_href_nokey(J))
+    return lj_ir_kkptr(J, niltvg(J2G(J)));
+  return NEXTFOLD;
+}
+
+LJFOLD(HREF TDUP KPRI)
+LJFOLD(HREF TDUP KGC)
+LJFOLD(HREF TDUP KNUM)
+LJFOLDF(fwd_href_tdup)
+{
+  TValue keyv;
+  lj_ir_kvalue(J->L, &keyv, fright);
+  if (lj_tab_get(J->L, ir_ktab(IR(fleft->op1)), &keyv) == niltvg(J2G(J)) &&
+      lj_opt_fwd_href_nokey(J))
+    return lj_ir_kkptr(J, niltvg(J2G(J)));
+  return NEXTFOLD;
+}
+
+/* We can safely FOLD/CSE array/hash refs and field loads, since there
+** are no corresponding stores. But we need to check for any NEWREF with
+** an aliased table, as it may invalidate all of the pointers and fields.
+** Only HREF needs the NEWREF check -- AREF and HREFK already depend on
+** FLOADs. And NEWREF itself is treated like a store (see below).
+*/
+LJFOLD(FLOAD TNEW IRFL_TAB_ASIZE)
+LJFOLDF(fload_tab_tnew_asize)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD(fleft->op1);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TNEW IRFL_TAB_HMASK)
+LJFOLDF(fload_tab_tnew_hmask)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD((1 << fleft->op2)-1);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TDUP IRFL_TAB_ASIZE)
+LJFOLDF(fload_tab_tdup_asize)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD((int32_t)ir_ktab(IR(fleft->op1))->asize);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TDUP IRFL_TAB_HMASK)
+LJFOLDF(fload_tab_tdup_hmask)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD((int32_t)ir_ktab(IR(fleft->op1))->hmask);
+  return NEXTFOLD;
+}
+
+LJFOLD(HREF any any)
+LJFOLD(FLOAD any IRFL_TAB_ARRAY)
+LJFOLD(FLOAD any IRFL_TAB_NODE)
+LJFOLD(FLOAD any IRFL_TAB_ASIZE)
+LJFOLD(FLOAD any IRFL_TAB_HMASK)
+LJFOLDF(fload_tab_ah)
+{
+  TRef tr = lj_opt_cse(J);
+  return lj_opt_fwd_tptr(J, tref_ref(tr)) ? tr : EMITFOLD;
+}
+
+/* Strings are immutable, so we can safely FOLD/CSE the related FLOAD. */
+LJFOLD(FLOAD KGC IRFL_STR_LEN)
+LJFOLDF(fload_str_len_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return INTFOLD((int32_t)ir_kstr(fleft)->len);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD SNEW IRFL_STR_LEN)
+LJFOLDF(fload_str_len_snew)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD)) {
+    PHIBARRIER(fleft);
+    return fleft->op2;
+  }
+  return NEXTFOLD;
+}
+
+/* The C type ID of cdata objects is immutable. */
+LJFOLD(FLOAD KGC IRFL_CDATA_CTYPEID)
+LJFOLDF(fload_cdata_typeid_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return INTFOLD((int32_t)ir_kcdata(fleft)->ctypeid);
+  return NEXTFOLD;
+}
+
+/* Get the contents of immutable cdata objects. */
+LJFOLD(FLOAD KGC IRFL_CDATA_PTR)
+LJFOLD(FLOAD KGC IRFL_CDATA_INT)
+LJFOLD(FLOAD KGC IRFL_CDATA_INT64)
+LJFOLDF(fload_cdata_int64_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD)) {
+    void *p = cdataptr(ir_kcdata(fleft));
+    if (irt_is64(fins->t))
+      return INT64FOLD(*(uint64_t *)p);
+    else
+      return INTFOLD(*(int32_t *)p);
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD CNEW IRFL_CDATA_CTYPEID)
+LJFOLD(FLOAD CNEWI IRFL_CDATA_CTYPEID)
+LJFOLDF(fload_cdata_typeid_cnew)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return fleft->op1;  /* No PHI barrier needed. CNEW/CNEWI op1 is const. */
+  return NEXTFOLD;
+}
+
+/* Pointer, int and int64 cdata objects are immutable. */
+LJFOLD(FLOAD CNEWI IRFL_CDATA_PTR)
+LJFOLD(FLOAD CNEWI IRFL_CDATA_INT)
+LJFOLD(FLOAD CNEWI IRFL_CDATA_INT64)
+LJFOLDF(fload_cdata_ptr_int64_cnew)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return fleft->op2;  /* Fold even across PHI to avoid allocations. */
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD any IRFL_STR_LEN)
+LJFOLD(FLOAD any IRFL_CDATA_CTYPEID)
+LJFOLD(FLOAD any IRFL_CDATA_PTR)
+LJFOLD(FLOAD any IRFL_CDATA_INT)
+LJFOLD(FLOAD any IRFL_CDATA_INT64)
+LJFOLD(VLOAD any any)  /* Vararg loads have no corresponding stores. */
+LJFOLDX(lj_opt_cse)
+
+/* All other field loads need alias analysis. */
+LJFOLD(FLOAD any any)
+LJFOLDX(lj_opt_fwd_fload)
+
+/* This is for LOOP only. Recording handles SLOADs internally. */
+LJFOLD(SLOAD any any)
+LJFOLDF(fwd_sload)
+{
+  if ((fins->op2 & IRSLOAD_FRAME)) {
+    TRef tr = lj_opt_cse(J);
+    return tref_ref(tr) < J->chain[IR_RETF] ? EMITFOLD : tr;
+  } else {
+    lua_assert(J->slot[fins->op1] != 0);
+    return J->slot[fins->op1];
+  }
+}
+
+/* Only fold for KKPTR. The pointer _and_ the contents must be const. */
+LJFOLD(XLOAD KKPTR any)
+LJFOLDF(xload_kptr)
+{
+  TRef tr = kfold_xload(J, fins, ir_kptr(fleft));
+  return tr ? tr : NEXTFOLD;
+}
+
+LJFOLD(XLOAD any any)
+LJFOLDX(lj_opt_fwd_xload)
+
+/* -- Write barriers ------------------------------------------------------ */
+
+/* Write barriers are amenable to CSE, but not across any incremental
+** GC steps.
+**
+** The same logic applies to open upvalue references, because a stack
+** may be resized during a GC step (not the current stack, but maybe that
+** of a coroutine).
+*/
+LJFOLD(TBAR any)
+LJFOLD(OBAR any any)
+LJFOLD(UREFO any any)
+LJFOLDF(barrier_tab)
+{
+  TRef tr = lj_opt_cse(J);
+  if (gcstep_barrier(J, tref_ref(tr)))  /* CSE across GC step? */
+    return EMITFOLD;  /* Raw emit. Assumes fins is left intact by CSE. */
+  return tr;
+}
+
+LJFOLD(TBAR TNEW)
+LJFOLD(TBAR TDUP)
+LJFOLDF(barrier_tnew_tdup)
+{
+  /* New tables are always white and never need a barrier. */
+  if (fins->op1 < J->chain[IR_LOOP])  /* Except across a GC step. */
+    return NEXTFOLD;
+  return DROPFOLD;
+}
+
+/* -- Stores and allocations ---------------------------------------------- */
+
+/* Stores and allocations cannot be folded or passed on to CSE in general.
+** But some stores can be eliminated with dead-store elimination (DSE).
+**
+** Caveat: *all* stores and allocs must be listed here or they end up at CSE!
+*/
+
+LJFOLD(ASTORE any any)
+LJFOLD(HSTORE any any)
+LJFOLDX(lj_opt_dse_ahstore)
+
+LJFOLD(USTORE any any)
+LJFOLDX(lj_opt_dse_ustore)
+
+LJFOLD(FSTORE any any)
+LJFOLDX(lj_opt_dse_fstore)
+
+LJFOLD(XSTORE any any)
+LJFOLDX(lj_opt_dse_xstore)
+
+LJFOLD(NEWREF any any)  /* Treated like a store. */
+LJFOLD(CALLS any any)
+LJFOLD(CALLL any any)  /* Safeguard fallback. */
+LJFOLD(CALLXS any any)
+LJFOLD(XBAR)
+LJFOLD(RETF any any)  /* Modifies BASE. */
+LJFOLD(TNEW any any)
+LJFOLD(TDUP any)
+LJFOLD(CNEW any any)
+LJFOLD(XSNEW any any)
+LJFOLDX(lj_ir_emit)
+
+/* ------------------------------------------------------------------------ */
+
+/* Every entry in the generated hash table is a 32 bit pattern:
+**
+** xxxxxxxx iiiiiii lllllll rrrrrrrrrr
+**
+**   xxxxxxxx = 8 bit index into fold function table
+**    iiiiiii = 7 bit folded instruction opcode
+**    lllllll = 7 bit left instruction opcode
+** rrrrrrrrrr = 8 bit right instruction opcode or 10 bits from literal field
+*/
+
+#include "lj_folddef.h"
+
+/* ------------------------------------------------------------------------ */
+
+/* Fold IR instruction. */
+TRef LJ_FASTCALL lj_opt_fold(jit_State *J)
+{
+  uint32_t key, any;
+  IRRef ref;
+
+  if (LJ_UNLIKELY((J->flags & JIT_F_OPT_MASK) != JIT_F_OPT_DEFAULT)) {
+    lua_assert(((JIT_F_OPT_FOLD|JIT_F_OPT_FWD|JIT_F_OPT_CSE|JIT_F_OPT_DSE) |
+		JIT_F_OPT_DEFAULT) == JIT_F_OPT_DEFAULT);
+    /* Folding disabled? Chain to CSE, but not for loads/stores/allocs. */
+    if (!(J->flags & JIT_F_OPT_FOLD) && irm_kind(lj_ir_mode[fins->o]) == IRM_N)
+      return lj_opt_cse(J);
+
+    /* No FOLD, forwarding or CSE? Emit raw IR for loads, except for SLOAD. */
+    if ((J->flags & (JIT_F_OPT_FOLD|JIT_F_OPT_FWD|JIT_F_OPT_CSE)) !=
+		    (JIT_F_OPT_FOLD|JIT_F_OPT_FWD|JIT_F_OPT_CSE) &&
+	irm_kind(lj_ir_mode[fins->o]) == IRM_L && fins->o != IR_SLOAD)
+      return lj_ir_emit(J);
+
+    /* No FOLD or DSE? Emit raw IR for stores. */
+    if ((J->flags & (JIT_F_OPT_FOLD|JIT_F_OPT_DSE)) !=
+		    (JIT_F_OPT_FOLD|JIT_F_OPT_DSE) &&
+	irm_kind(lj_ir_mode[fins->o]) == IRM_S)
+      return lj_ir_emit(J);
+  }
+
+  /* Fold engine start/retry point. */
+retry:
+  /* Construct key from opcode and operand opcodes (unless literal/none). */
+  key = ((uint32_t)fins->o << 17);
+  if (fins->op1 >= J->cur.nk) {
+    key += (uint32_t)IR(fins->op1)->o << 10;
+    *fleft = *IR(fins->op1);
+  }
+  if (fins->op2 >= J->cur.nk) {
+    key += (uint32_t)IR(fins->op2)->o;
+    *fright = *IR(fins->op2);
+  } else {
+    key += (fins->op2 & 0x3ffu);  /* Literal mask. Must include IRCONV_*MASK. */
+  }
+
+  /* Check for a match in order from most specific to least specific. */
+  any = 0;
+  for (;;) {
+    uint32_t k = key | (any & 0x1ffff);
+    uint32_t h = fold_hashkey(k);
+    uint32_t fh = fold_hash[h];  /* Lookup key in semi-perfect hash table. */
+    if ((fh & 0xffffff) == k || (fh = fold_hash[h+1], (fh & 0xffffff) == k)) {
+      ref = (IRRef)tref_ref(fold_func[fh >> 24](J));
+      if (ref != NEXTFOLD)
+	break;
+    }
+    if (any == 0xfffff)  /* Exhausted folding. Pass on to CSE. */
+      return lj_opt_cse(J);
+    any = (any | (any >> 10)) ^ 0xffc00;
+  }
+
+  /* Return value processing, ordered by frequency. */
+  if (LJ_LIKELY(ref >= MAX_FOLD))
+    return TREF(ref, irt_t(IR(ref)->t));
+  if (ref == RETRYFOLD)
+    goto retry;
+  if (ref == KINTFOLD)
+    return lj_ir_kint(J, fins->i);
+  if (ref == FAILFOLD)
+    lj_trace_err(J, LJ_TRERR_GFAIL);
+  lua_assert(ref == DROPFOLD);
+  return REF_DROP;
+}
+
+/* -- Common-Subexpression Elimination ------------------------------------ */
+
+/* CSE an IR instruction. This is very fast due to the skip-list chains. */
+TRef LJ_FASTCALL lj_opt_cse(jit_State *J)
+{
+  /* Avoid narrow to wide store-to-load forwarding stall */
+  IRRef2 op12 = (IRRef2)fins->op1 + ((IRRef2)fins->op2 << 16);
+  IROp op = fins->o;
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    /* Limited search for same operands in per-opcode chain. */
+    IRRef ref = J->chain[op];
+    IRRef lim = fins->op1;
+    if (fins->op2 > lim) lim = fins->op2;  /* Relies on lit < REF_BIAS. */
+    while (ref > lim) {
+      if (IR(ref)->op12 == op12)
+	return TREF(ref, irt_t(IR(ref)->t));  /* Common subexpression found. */
+      ref = IR(ref)->prev;
+    }
+  }
+  /* Otherwise emit IR (inlined for speed). */
+  {
+    IRRef ref = lj_ir_nextins(J);
+    IRIns *ir = IR(ref);
+    ir->prev = J->chain[op];
+    ir->op12 = op12;
+    J->chain[op] = (IRRef1)ref;
+    ir->o = fins->o;
+    J->guardemit.irt |= fins->t.irt;
+    return TREF(ref, irt_t((ir->t = fins->t)));
+  }
+}
+
+/* CSE with explicit search limit. */
+TRef LJ_FASTCALL lj_opt_cselim(jit_State *J, IRRef lim)
+{
+  IRRef ref = J->chain[fins->o];
+  IRRef2 op12 = (IRRef2)fins->op1 + ((IRRef2)fins->op2 << 16);
+  while (ref > lim) {
+    if (IR(ref)->op12 == op12)
+      return ref;
+    ref = IR(ref)->prev;
+  }
+  return lj_ir_emit(J);
+}
+
+/* ------------------------------------------------------------------------ */
+
+#undef IR
+#undef fins
+#undef fleft
+#undef fright
+#undef knumleft
+#undef knumright
+#undef emitir
+
+#endif
diff --git a/lib/luajit/src/lj_opt_loop.c b/lib/luajit/src/lj_opt_loop.c
new file mode 100644
index 00000000..fa001151
--- /dev/null
+++ b/lib/luajit/src/lj_opt_loop.c
@@ -0,0 +1,436 @@
+/*
+** LOOP: Loop Optimizations.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_loop_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_vm.h"
+
+/* Loop optimization:
+**
+** Traditional Loop-Invariant Code Motion (LICM) splits the instructions
+** of a loop into invariant and variant instructions. The invariant
+** instructions are hoisted out of the loop and only the variant
+** instructions remain inside the loop body.
+**
+** Unfortunately LICM is mostly useless for compiling dynamic languages.
+** The IR has many guards and most of the subsequent instructions are
+** control-dependent on them. The first non-hoistable guard would
+** effectively prevent hoisting of all subsequent instructions.
+**
+** That's why we use a special form of unrolling using copy-substitution,
+** combined with redundancy elimination:
+**
+** The recorded instruction stream is re-emitted to the compiler pipeline
+** with substituted operands. The substitution table is filled with the
+** refs returned by re-emitting each instruction. This can be done
+** on-the-fly, because the IR is in strict SSA form, where every ref is
+** defined before its use.
+**
+** This aproach generates two code sections, separated by the LOOP
+** instruction:
+**
+** 1. The recorded instructions form a kind of pre-roll for the loop. It
+** contains a mix of invariant and variant instructions and performs
+** exactly one loop iteration (but not necessarily the 1st iteration).
+**
+** 2. The loop body contains only the variant instructions and performs
+** all remaining loop iterations.
+**
+** On first sight that looks like a waste of space, because the variant
+** instructions are present twice. But the key insight is that the
+** pre-roll honors the control-dependencies for *both* the pre-roll itself
+** *and* the loop body!
+**
+** It also means one doesn't have to explicitly model control-dependencies
+** (which, BTW, wouldn't help LICM much). And it's much easier to
+** integrate sparse snapshotting with this approach.
+**
+** One of the nicest aspects of this approach is that all of the
+** optimizations of the compiler pipeline (FOLD, CSE, FWD, etc.) can be
+** reused with only minor restrictions (e.g. one should not fold
+** instructions across loop-carried dependencies).
+**
+** But in general all optimizations can be applied which only need to look
+** backwards into the generated instruction stream. At any point in time
+** during the copy-substitution process this contains both a static loop
+** iteration (the pre-roll) and a dynamic one (from the to-be-copied
+** instruction up to the end of the partial loop body).
+**
+** Since control-dependencies are implicitly kept, CSE also applies to all
+** kinds of guards. The major advantage is that all invariant guards can
+** be hoisted, too.
+**
+** Load/store forwarding works across loop iterations, too. This is
+** important if loop-carried dependencies are kept in upvalues or tables.
+** E.g. 'self.idx = self.idx + 1' deep down in some OO-style method may
+** become a forwarded loop-recurrence after inlining.
+**
+** Since the IR is in SSA form, loop-carried dependencies have to be
+** modeled with PHI instructions. The potential candidates for PHIs are
+** collected on-the-fly during copy-substitution. After eliminating the
+** redundant ones, PHI instructions are emitted *below* the loop body.
+**
+** Note that this departure from traditional SSA form doesn't change the
+** semantics of the PHI instructions themselves. But it greatly simplifies
+** on-the-fly generation of the IR and the machine code.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Emit raw IR without passing through optimizations. */
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- PHI elimination ----------------------------------------------------- */
+
+/* Emit or eliminate collected PHIs. */
+static void loop_emit_phi(jit_State *J, IRRef1 *subst, IRRef1 *phi, IRRef nphi,
+			  SnapNo onsnap)
+{
+  int passx = 0;
+  IRRef i, j, nslots;
+  IRRef invar = J->chain[IR_LOOP];
+  /* Pass #1: mark redundant and potentially redundant PHIs. */
+  for (i = 0, j = 0; i < nphi; i++) {
+    IRRef lref = phi[i];
+    IRRef rref = subst[lref];
+    if (lref == rref || rref == REF_DROP) {  /* Invariants are redundant. */
+      irt_clearphi(IR(lref)->t);
+    } else {
+      phi[j++] = (IRRef1)lref;
+      if (!(IR(rref)->op1 == lref || IR(rref)->op2 == lref)) {
+	/* Quick check for simple recurrences failed, need pass2. */
+	irt_setmark(IR(lref)->t);
+	passx = 1;
+      }
+    }
+  }
+  nphi = j;
+  /* Pass #2: traverse variant part and clear marks of non-redundant PHIs. */
+  if (passx) {
+    SnapNo s;
+    for (i = J->cur.nins-1; i > invar; i--) {
+      IRIns *ir = IR(i);
+      if (!irref_isk(ir->op2)) irt_clearmark(IR(ir->op2)->t);
+      if (!irref_isk(ir->op1)) {
+	irt_clearmark(IR(ir->op1)->t);
+	if (ir->op1 < invar &&
+	    ir->o >= IR_CALLN && ir->o <= IR_CARG) {  /* ORDER IR */
+	  ir = IR(ir->op1);
+	  while (ir->o == IR_CARG) {
+	    if (!irref_isk(ir->op2)) irt_clearmark(IR(ir->op2)->t);
+	    if (irref_isk(ir->op1)) break;
+	    ir = IR(ir->op1);
+	    irt_clearmark(ir->t);
+	  }
+	}
+      }
+    }
+    for (s = J->cur.nsnap-1; s >= onsnap; s--) {
+      SnapShot *snap = &J->cur.snap[s];
+      SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+      MSize n, nent = snap->nent;
+      for (n = 0; n < nent; n++) {
+	IRRef ref = snap_ref(map[n]);
+	if (!irref_isk(ref)) irt_clearmark(IR(ref)->t);
+      }
+    }
+  }
+  /* Pass #3: add PHIs for variant slots without a corresponding SLOAD. */
+  nslots = J->baseslot+J->maxslot;
+  for (i = 1; i < nslots; i++) {
+    IRRef ref = tref_ref(J->slot[i]);
+    while (!irref_isk(ref) && ref != subst[ref]) {
+      IRIns *ir = IR(ref);
+      irt_clearmark(ir->t);  /* Unmark potential uses, too. */
+      if (irt_isphi(ir->t) || irt_ispri(ir->t))
+	break;
+      irt_setphi(ir->t);
+      if (nphi >= LJ_MAX_PHI)
+	lj_trace_err(J, LJ_TRERR_PHIOV);
+      phi[nphi++] = (IRRef1)ref;
+      ref = subst[ref];
+      if (ref > invar)
+	break;
+    }
+  }
+  /* Pass #4: propagate non-redundant PHIs. */
+  while (passx) {
+    passx = 0;
+    for (i = 0; i < nphi; i++) {
+      IRRef lref = phi[i];
+      IRIns *ir = IR(lref);
+      if (!irt_ismarked(ir->t)) {  /* Propagate only from unmarked PHIs. */
+	IRIns *irr = IR(subst[lref]);
+	if (irt_ismarked(irr->t)) {  /* Right ref points to other PHI? */
+	  irt_clearmark(irr->t);  /* Mark that PHI as non-redundant. */
+	  passx = 1;  /* Retry. */
+	}
+      }
+    }
+  }
+  /* Pass #5: emit PHI instructions or eliminate PHIs. */
+  for (i = 0; i < nphi; i++) {
+    IRRef lref = phi[i];
+    IRIns *ir = IR(lref);
+    if (!irt_ismarked(ir->t)) {  /* Emit PHI if not marked. */
+      IRRef rref = subst[lref];
+      if (rref > invar)
+	irt_setphi(IR(rref)->t);
+      emitir_raw(IRT(IR_PHI, irt_type(ir->t)), lref, rref);
+    } else {  /* Otherwise eliminate PHI. */
+      irt_clearmark(ir->t);
+      irt_clearphi(ir->t);
+    }
+  }
+}
+
+/* -- Loop unrolling using copy-substitution ------------------------------ */
+
+/* Copy-substitute snapshot. */
+static void loop_subst_snap(jit_State *J, SnapShot *osnap,
+			    SnapEntry *loopmap, IRRef1 *subst)
+{
+  SnapEntry *nmap, *omap = &J->cur.snapmap[osnap->mapofs];
+  SnapEntry *nextmap = &J->cur.snapmap[snap_nextofs(&J->cur, osnap)];
+  MSize nmapofs;
+  MSize on, ln, nn, onent = osnap->nent;
+  BCReg nslots = osnap->nslots;
+  SnapShot *snap = &J->cur.snap[J->cur.nsnap];
+  if (irt_isguard(J->guardemit)) {  /* Guard inbetween? */
+    nmapofs = J->cur.nsnapmap;
+    J->cur.nsnap++;  /* Add new snapshot. */
+  } else {  /* Otherwise overwrite previous snapshot. */
+    snap--;
+    nmapofs = snap->mapofs;
+  }
+  J->guardemit.irt = 0;
+  /* Setup new snapshot. */
+  snap->mapofs = (uint16_t)nmapofs;
+  snap->ref = (IRRef1)J->cur.nins;
+  snap->nslots = nslots;
+  snap->topslot = osnap->topslot;
+  snap->count = 0;
+  nmap = &J->cur.snapmap[nmapofs];
+  /* Substitute snapshot slots. */
+  on = ln = nn = 0;
+  while (on < onent) {
+    SnapEntry osn = omap[on], lsn = loopmap[ln];
+    if (snap_slot(lsn) < snap_slot(osn)) {  /* Copy slot from loop map. */
+      nmap[nn++] = lsn;
+      ln++;
+    } else {  /* Copy substituted slot from snapshot map. */
+      if (snap_slot(lsn) == snap_slot(osn)) ln++;  /* Shadowed loop slot. */
+      if (!irref_isk(snap_ref(osn)))
+	osn = snap_setref(osn, subst[snap_ref(osn)]);
+      nmap[nn++] = osn;
+      on++;
+    }
+  }
+  while (snap_slot(loopmap[ln]) < nslots)  /* Copy remaining loop slots. */
+    nmap[nn++] = loopmap[ln++];
+  snap->nent = (uint8_t)nn;
+  omap += onent;
+  nmap += nn;
+  while (omap < nextmap)  /* Copy PC + frame links. */
+    *nmap++ = *omap++;
+  J->cur.nsnapmap = (uint16_t)(nmap - J->cur.snapmap);
+}
+
+/* Unroll loop. */
+static void loop_unroll(jit_State *J)
+{
+  IRRef1 phi[LJ_MAX_PHI];
+  uint32_t nphi = 0;
+  IRRef1 *subst;
+  SnapNo onsnap;
+  SnapShot *osnap, *loopsnap;
+  SnapEntry *loopmap, *psentinel;
+  IRRef ins, invar;
+
+  /* Use temp buffer for substitution table.
+  ** Only non-constant refs in [REF_BIAS,invar) are valid indexes.
+  ** Caveat: don't call into the VM or run the GC or the buffer may be gone.
+  */
+  invar = J->cur.nins;
+  subst = (IRRef1 *)lj_str_needbuf(J->L, &G(J->L)->tmpbuf,
+				   (invar-REF_BIAS)*sizeof(IRRef1)) - REF_BIAS;
+  subst[REF_BASE] = REF_BASE;
+
+  /* LOOP separates the pre-roll from the loop body. */
+  emitir_raw(IRTG(IR_LOOP, IRT_NIL), 0, 0);
+
+  /* Grow snapshot buffer and map for copy-substituted snapshots.
+  ** Need up to twice the number of snapshots minus #0 and loop snapshot.
+  ** Need up to twice the number of entries plus fallback substitutions
+  ** from the loop snapshot entries for each new snapshot.
+  ** Caveat: both calls may reallocate J->cur.snap and J->cur.snapmap!
+  */
+  onsnap = J->cur.nsnap;
+  lj_snap_grow_buf(J, 2*onsnap-2);
+  lj_snap_grow_map(J, J->cur.nsnapmap*2+(onsnap-2)*J->cur.snap[onsnap-1].nent);
+
+  /* The loop snapshot is used for fallback substitutions. */
+  loopsnap = &J->cur.snap[onsnap-1];
+  loopmap = &J->cur.snapmap[loopsnap->mapofs];
+  /* The PC of snapshot #0 and the loop snapshot must match. */
+  psentinel = &loopmap[loopsnap->nent];
+  lua_assert(*psentinel == J->cur.snapmap[J->cur.snap[0].nent]);
+  *psentinel = SNAP(255, 0, 0);  /* Replace PC with temporary sentinel. */
+
+  /* Start substitution with snapshot #1 (#0 is empty for root traces). */
+  osnap = &J->cur.snap[1];
+
+  /* Copy and substitute all recorded instructions and snapshots. */
+  for (ins = REF_FIRST; ins < invar; ins++) {
+    IRIns *ir;
+    IRRef op1, op2;
+
+    if (ins >= osnap->ref)  /* Instruction belongs to next snapshot? */
+      loop_subst_snap(J, osnap++, loopmap, subst);  /* Copy-substitute it. */
+
+    /* Substitute instruction operands. */
+    ir = IR(ins);
+    op1 = ir->op1;
+    if (!irref_isk(op1)) op1 = subst[op1];
+    op2 = ir->op2;
+    if (!irref_isk(op2)) op2 = subst[op2];
+    if (irm_kind(lj_ir_mode[ir->o]) == IRM_N &&
+	op1 == ir->op1 && op2 == ir->op2) {  /* Regular invariant ins? */
+      subst[ins] = (IRRef1)ins;  /* Shortcut. */
+    } else {
+      /* Re-emit substituted instruction to the FOLD/CSE/etc. pipeline. */
+      IRType1 t = ir->t;  /* Get this first, since emitir may invalidate ir. */
+      IRRef ref = tref_ref(emitir(ir->ot & ~IRT_ISPHI, op1, op2));
+      subst[ins] = (IRRef1)ref;
+      if (ref != ins) {
+	IRIns *irr = IR(ref);
+	if (ref < invar) {  /* Loop-carried dependency? */
+	  /* Potential PHI? */
+	  if (!irref_isk(ref) && !irt_isphi(irr->t) && !irt_ispri(irr->t)) {
+	    irt_setphi(irr->t);
+	    if (nphi >= LJ_MAX_PHI)
+	      lj_trace_err(J, LJ_TRERR_PHIOV);
+	    phi[nphi++] = (IRRef1)ref;
+	  }
+	  /* Check all loop-carried dependencies for type instability. */
+	  if (!irt_sametype(t, irr->t)) {
+	    if (irt_isinteger(t) && irt_isinteger(irr->t))
+	      continue;
+	    else if (irt_isnum(t) && irt_isinteger(irr->t))  /* Fix int->num. */
+	      ref = tref_ref(emitir(IRTN(IR_CONV), ref, IRCONV_NUM_INT));
+	    else if (irt_isnum(irr->t) && irt_isinteger(t))  /* Fix num->int. */
+	      ref = tref_ref(emitir(IRTGI(IR_CONV), ref,
+				    IRCONV_INT_NUM|IRCONV_CHECK));
+	    else
+	      lj_trace_err(J, LJ_TRERR_TYPEINS);
+	    subst[ins] = (IRRef1)ref;
+	    irr = IR(ref);
+	    goto phiconv;
+	  }
+	} else if (ref != REF_DROP && irr->o == IR_CONV &&
+		   ref > invar && irr->op1 < invar) {
+	  /* May need an extra PHI for a CONV. */
+	  ref = irr->op1;
+	  irr = IR(ref);
+	phiconv:
+	  if (ref < invar && !irref_isk(ref) && !irt_isphi(irr->t)) {
+	    irt_setphi(irr->t);
+	    if (nphi >= LJ_MAX_PHI)
+	      lj_trace_err(J, LJ_TRERR_PHIOV);
+	    phi[nphi++] = (IRRef1)ref;
+	  }
+	}
+      }
+    }
+  }
+  if (!irt_isguard(J->guardemit))  /* Drop redundant snapshot. */
+    J->cur.nsnapmap = (uint16_t)J->cur.snap[--J->cur.nsnap].mapofs;
+  lua_assert(J->cur.nsnapmap <= J->sizesnapmap);
+  *psentinel = J->cur.snapmap[J->cur.snap[0].nent];  /* Restore PC. */
+
+  loop_emit_phi(J, subst, phi, nphi, onsnap);
+}
+
+/* Undo any partial changes made by the loop optimization. */
+static void loop_undo(jit_State *J, IRRef ins, SnapNo nsnap, MSize nsnapmap)
+{
+  ptrdiff_t i;
+  SnapShot *snap = &J->cur.snap[nsnap-1];
+  SnapEntry *map = J->cur.snapmap;
+  map[snap->mapofs + snap->nent] = map[J->cur.snap[0].nent];  /* Restore PC. */
+  J->cur.nsnapmap = (uint16_t)nsnapmap;
+  J->cur.nsnap = nsnap;
+  J->guardemit.irt = 0;
+  lj_ir_rollback(J, ins);
+  for (i = 0; i < BPROP_SLOTS; i++) {  /* Remove backprop. cache entries. */
+    BPropEntry *bp = &J->bpropcache[i];
+    if (bp->val >= ins)
+      bp->key = 0;
+  }
+  for (ins--; ins >= REF_FIRST; ins--) {  /* Remove flags. */
+    IRIns *ir = IR(ins);
+    irt_clearphi(ir->t);
+    irt_clearmark(ir->t);
+  }
+}
+
+/* Protected callback for loop optimization. */
+static TValue *cploop_opt(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  UNUSED(L); UNUSED(dummy);
+  loop_unroll((jit_State *)ud);
+  return NULL;
+}
+
+/* Loop optimization. */
+int lj_opt_loop(jit_State *J)
+{
+  IRRef nins = J->cur.nins;
+  SnapNo nsnap = J->cur.nsnap;
+  MSize nsnapmap = J->cur.nsnapmap;
+  int errcode = lj_vm_cpcall(J->L, NULL, J, cploop_opt);
+  if (LJ_UNLIKELY(errcode)) {
+    lua_State *L = J->L;
+    if (errcode == LUA_ERRRUN && tvisnumber(L->top-1)) {  /* Trace error? */
+      int32_t e = numberVint(L->top-1);
+      switch ((TraceError)e) {
+      case LJ_TRERR_TYPEINS:  /* Type instability. */
+      case LJ_TRERR_GFAIL:  /* Guard would always fail. */
+	/* Unrolling via recording fixes many cases, e.g. a flipped boolean. */
+	if (--J->instunroll < 0)  /* But do not unroll forever. */
+	  break;
+	L->top--;  /* Remove error object. */
+	loop_undo(J, nins, nsnap, nsnapmap);
+	return 1;  /* Loop optimization failed, continue recording. */
+      default:
+	break;
+      }
+    }
+    lj_err_throw(L, errcode);  /* Propagate all other errors. */
+  }
+  return 0;  /* Loop optimization is ok. */
+}
+
+#undef IR
+#undef emitir
+#undef emitir_raw
+
+#endif
diff --git a/lib/luajit/src/lj_opt_mem.c b/lib/luajit/src/lj_opt_mem.c
new file mode 100644
index 00000000..c8cdc3e5
--- /dev/null
+++ b/lib/luajit/src/lj_opt_mem.c
@@ -0,0 +1,917 @@
+/*
+** Memory access optimizations.
+** AA: Alias Analysis using high-level semantic disambiguation.
+** FWD: Load Forwarding (L2L) + Store Forwarding (S2L).
+** DSE: Dead-Store Elimination.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_mem_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_tab.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+#define fins		(&J->fold.ins)
+#define fleft		(&J->fold.left)
+#define fright		(&J->fold.right)
+
+/*
+** Caveat #1: return value is not always a TRef -- only use with tref_ref().
+** Caveat #2: FWD relies on active CSE for xREF operands -- see lj_opt_fold().
+*/
+
+/* Return values from alias analysis. */
+typedef enum {
+  ALIAS_NO,	/* The two refs CANNOT alias (exact). */
+  ALIAS_MAY,	/* The two refs MAY alias (inexact). */
+  ALIAS_MUST	/* The two refs MUST alias (exact). */
+} AliasRet;
+
+/* -- ALOAD/HLOAD forwarding and ASTORE/HSTORE elimination ---------------- */
+
+/* Simplified escape analysis: check for intervening stores. */
+static AliasRet aa_escape(jit_State *J, IRIns *ir, IRIns *stop)
+{
+  IRRef ref = (IRRef)(ir - J->cur.ir);  /* The ref that might be stored. */
+  for (ir++; ir < stop; ir++)
+    if (ir->op2 == ref &&
+	(ir->o == IR_ASTORE || ir->o == IR_HSTORE ||
+	 ir->o == IR_USTORE || ir->o == IR_FSTORE))
+      return ALIAS_MAY;  /* Reference was stored and might alias. */
+  return ALIAS_NO;  /* Reference was not stored. */
+}
+
+/* Alias analysis for two different table references. */
+static AliasRet aa_table(jit_State *J, IRRef ta, IRRef tb)
+{
+  IRIns *taba = IR(ta), *tabb = IR(tb);
+  int newa, newb;
+  lua_assert(ta != tb);
+  lua_assert(irt_istab(taba->t) && irt_istab(tabb->t));
+  /* Disambiguate new allocations. */
+  newa = (taba->o == IR_TNEW || taba->o == IR_TDUP);
+  newb = (tabb->o == IR_TNEW || tabb->o == IR_TDUP);
+  if (newa && newb)
+    return ALIAS_NO;  /* Two different allocations never alias. */
+  if (newb) {  /* At least one allocation? */
+    IRIns *tmp = taba; taba = tabb; tabb = tmp;
+  } else if (!newa) {
+    return ALIAS_MAY;  /* Anything else: we just don't know. */
+  }
+  return aa_escape(J, taba, tabb);
+}
+
+/* Alias analysis for array and hash access using key-based disambiguation. */
+static AliasRet aa_ahref(jit_State *J, IRIns *refa, IRIns *refb)
+{
+  IRRef ka = refa->op2;
+  IRRef kb = refb->op2;
+  IRIns *keya, *keyb;
+  IRRef ta, tb;
+  if (refa == refb)
+    return ALIAS_MUST;  /* Shortcut for same refs. */
+  keya = IR(ka);
+  if (keya->o == IR_KSLOT) { ka = keya->op1; keya = IR(ka); }
+  keyb = IR(kb);
+  if (keyb->o == IR_KSLOT) { kb = keyb->op1; keyb = IR(kb); }
+  ta = (refa->o==IR_HREFK || refa->o==IR_AREF) ? IR(refa->op1)->op1 : refa->op1;
+  tb = (refb->o==IR_HREFK || refb->o==IR_AREF) ? IR(refb->op1)->op1 : refb->op1;
+  if (ka == kb) {
+    /* Same key. Check for same table with different ref (NEWREF vs. HREF). */
+    if (ta == tb)
+      return ALIAS_MUST;  /* Same key, same table. */
+    else
+      return aa_table(J, ta, tb);  /* Same key, possibly different table. */
+  }
+  if (irref_isk(ka) && irref_isk(kb))
+    return ALIAS_NO;  /* Different constant keys. */
+  if (refa->o == IR_AREF) {
+    /* Disambiguate array references based on index arithmetic. */
+    int32_t ofsa = 0, ofsb = 0;
+    IRRef basea = ka, baseb = kb;
+    lua_assert(refb->o == IR_AREF);
+    /* Gather base and offset from t[base] or t[base+-ofs]. */
+    if (keya->o == IR_ADD && irref_isk(keya->op2)) {
+      basea = keya->op1;
+      ofsa = IR(keya->op2)->i;
+      if (basea == kb && ofsa != 0)
+	return ALIAS_NO;  /* t[base+-ofs] vs. t[base]. */
+    }
+    if (keyb->o == IR_ADD && irref_isk(keyb->op2)) {
+      baseb = keyb->op1;
+      ofsb = IR(keyb->op2)->i;
+      if (ka == baseb && ofsb != 0)
+	return ALIAS_NO;  /* t[base] vs. t[base+-ofs]. */
+    }
+    if (basea == baseb && ofsa != ofsb)
+      return ALIAS_NO;  /* t[base+-o1] vs. t[base+-o2] and o1 != o2. */
+  } else {
+    /* Disambiguate hash references based on the type of their keys. */
+    lua_assert((refa->o==IR_HREF || refa->o==IR_HREFK || refa->o==IR_NEWREF) &&
+	       (refb->o==IR_HREF || refb->o==IR_HREFK || refb->o==IR_NEWREF));
+    if (!irt_sametype(keya->t, keyb->t))
+      return ALIAS_NO;  /* Different key types. */
+  }
+  if (ta == tb)
+    return ALIAS_MAY;  /* Same table, cannot disambiguate keys. */
+  else
+    return aa_table(J, ta, tb);  /* Try to disambiguate tables. */
+}
+
+/* Array and hash load forwarding. */
+static TRef fwd_ahload(jit_State *J, IRRef xref)
+{
+  IRIns *xr = IR(xref);
+  IRRef lim = xref;  /* Search limit. */
+  IRRef ref;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[fins->o+IRDELTA_L2S];
+  while (ref > xref) {
+    IRIns *store = IR(ref);
+    switch (aa_ahref(J, xr, IR(store->op1))) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+  /* No conflicting store (yet): const-fold loads from allocations. */
+  {
+    IRIns *ir = (xr->o == IR_HREFK || xr->o == IR_AREF) ? IR(xr->op1) : xr;
+    IRRef tab = ir->op1;
+    ir = IR(tab);
+    if (ir->o == IR_TNEW || (ir->o == IR_TDUP && irref_isk(xr->op2))) {
+      /* A NEWREF with a number key may end up pointing to the array part.
+      ** But it's referenced from HSTORE and not found in the ASTORE chain.
+      ** For now simply consider this a conflict without forwarding anything.
+      */
+      if (xr->o == IR_AREF) {
+	IRRef ref2 = J->chain[IR_NEWREF];
+	while (ref2 > tab) {
+	  IRIns *newref = IR(ref2);
+	  if (irt_isnum(IR(newref->op2)->t))
+	    goto cselim;
+	  ref2 = newref->prev;
+	}
+      }
+      /* NEWREF inhibits CSE for HREF, and dependent FLOADs from HREFK/AREF.
+      ** But the above search for conflicting stores was limited by xref.
+      ** So continue searching, limited by the TNEW/TDUP. Store forwarding
+      ** is ok, too. A conflict does NOT limit the search for a matching load.
+      */
+      while (ref > tab) {
+	IRIns *store = IR(ref);
+	switch (aa_ahref(J, xr, IR(store->op1))) {
+	case ALIAS_NO:   break;  /* Continue searching. */
+	case ALIAS_MAY:  goto cselim;  /* Conflicting store. */
+	case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+	}
+	ref = store->prev;
+      }
+      lua_assert(ir->o != IR_TNEW || irt_isnil(fins->t));
+      if (irt_ispri(fins->t)) {
+	return TREF_PRI(irt_type(fins->t));
+      } else if (irt_isnum(fins->t) || (LJ_DUALNUM && irt_isint(fins->t)) ||
+		 irt_isstr(fins->t)) {
+	TValue keyv;
+	cTValue *tv;
+	IRIns *key = IR(xr->op2);
+	if (key->o == IR_KSLOT) key = IR(key->op1);
+	lj_ir_kvalue(J->L, &keyv, key);
+	tv = lj_tab_get(J->L, ir_ktab(IR(ir->op1)), &keyv);
+	lua_assert(itype2irt(tv) == irt_type(fins->t));
+	if (irt_isnum(fins->t))
+	  return lj_ir_knum_u64(J, tv->u64);
+	else if (LJ_DUALNUM && irt_isint(fins->t))
+	  return lj_ir_kint(J, intV(tv));
+	else
+	  return lj_ir_kstr(J, strV(tv));
+      }
+      /* Othwerwise: don't intern as a constant. */
+    }
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  ref = J->chain[fins->o];
+  while (ref > lim) {
+    IRIns *load = IR(ref);
+    if (load->op1 == xref)
+      return ref;  /* Load forwarding. */
+    ref = load->prev;
+  }
+  return 0;  /* Conflict or no match. */
+}
+
+/* Reassociate ALOAD across PHIs to handle t[i-1] forwarding case. */
+static TRef fwd_aload_reassoc(jit_State *J)
+{
+  IRIns *irx = IR(fins->op1);
+  IRIns *key = IR(irx->op2);
+  if (key->o == IR_ADD && irref_isk(key->op2)) {
+    IRIns *add2 = IR(key->op1);
+    if (add2->o == IR_ADD && irref_isk(add2->op2) &&
+	IR(key->op2)->i == -IR(add2->op2)->i) {
+      IRRef ref = J->chain[IR_AREF];
+      IRRef lim = add2->op1;
+      if (irx->op1 > lim) lim = irx->op1;
+      while (ref > lim) {
+	IRIns *ir = IR(ref);
+	if (ir->op1 == irx->op1 && ir->op2 == add2->op1)
+	  return fwd_ahload(J, ref);
+	ref = ir->prev;
+      }
+    }
+  }
+  return 0;
+}
+
+/* ALOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_aload(jit_State *J)
+{
+  IRRef ref;
+  if ((ref = fwd_ahload(J, fins->op1)) ||
+      (ref = fwd_aload_reassoc(J)))
+    return ref;
+  return EMITFOLD;
+}
+
+/* HLOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_hload(jit_State *J)
+{
+  IRRef ref = fwd_ahload(J, fins->op1);
+  if (ref)
+    return ref;
+  return EMITFOLD;
+}
+
+/* HREFK forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_hrefk(jit_State *J)
+{
+  IRRef tab = fleft->op1;
+  IRRef ref = J->chain[IR_NEWREF];
+  while (ref > tab) {
+    IRIns *newref = IR(ref);
+    if (tab == newref->op1) {
+      if (fright->op1 == newref->op2)
+	return ref;  /* Forward from NEWREF. */
+      else
+	goto docse;
+    } else if (aa_table(J, tab, newref->op1) != ALIAS_NO) {
+      goto docse;
+    }
+    ref = newref->prev;
+  }
+  /* No conflicting NEWREF: key location unchanged for HREFK of TDUP. */
+  if (IR(tab)->o == IR_TDUP)
+    fins->t.irt &= ~IRT_GUARD;  /* Drop HREFK guard. */
+docse:
+  return CSEFOLD;
+}
+
+/* Check whether HREF of TNEW/TDUP can be folded to niltv. */
+int LJ_FASTCALL lj_opt_fwd_href_nokey(jit_State *J)
+{
+  IRRef lim = fins->op1;  /* Search limit. */
+  IRRef ref;
+
+  /* The key for an ASTORE may end up in the hash part after a NEWREF. */
+  if (irt_isnum(fright->t) && J->chain[IR_NEWREF] > lim) {
+    ref = J->chain[IR_ASTORE];
+    while (ref > lim) {
+      if (ref < J->chain[IR_NEWREF])
+	return 0;  /* Conflict. */
+      ref = IR(ref)->prev;
+    }
+  }
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_HSTORE];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    if (aa_ahref(J, fins, IR(store->op1)) != ALIAS_NO)
+      return 0;  /* Conflict. */
+    ref = store->prev;
+  }
+
+  return 1;  /* No conflict. Can fold to niltv. */
+}
+
+/* Check whether there's no aliasing NEWREF for the left operand. */
+int LJ_FASTCALL lj_opt_fwd_tptr(jit_State *J, IRRef lim)
+{
+  IRRef ta = fins->op1;
+  IRRef ref = J->chain[IR_NEWREF];
+  while (ref > lim) {
+    IRIns *newref = IR(ref);
+    if (ta == newref->op1 || aa_table(J, ta, newref->op1) != ALIAS_NO)
+      return 0;  /* Conflict. */
+    ref = newref->prev;
+  }
+  return 1;  /* No conflict. Can safely FOLD/CSE. */
+}
+
+/* ASTORE/HSTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_ahstore(jit_State *J)
+{
+  IRRef xref = fins->op1;  /* xREF reference. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRIns *xr = IR(xref);
+  IRRef1 *refp = &J->chain[fins->o];
+  IRRef ref = *refp;
+  while (ref > xref) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_ahref(J, xr, IR(store->op1))) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:	/* Store to MAYBE the same location. */
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:	/* Store to the same location. */
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards (includes conflicting loads). */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t) || ir->o == IR_CALLL)
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	store->o = IR_NOP;
+	store->t.irt = IRT_NIL;
+	store->op1 = store->op2 = 0;
+	store->prev = 0;
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* -- ULOAD forwarding ---------------------------------------------------- */
+
+/* The current alias analysis for upvalues is very simplistic. It only
+** disambiguates between the unique upvalues of the same function.
+** This is good enough for now, since most upvalues are read-only.
+**
+** A more precise analysis would be feasible with the help of the parser:
+** generate a unique key for every upvalue, even across all prototypes.
+** Lacking a realistic use-case, it's unclear whether this is beneficial.
+*/
+static AliasRet aa_uref(IRIns *refa, IRIns *refb)
+{
+  if (refa->o != refb->o)
+    return ALIAS_NO;  /* Different UREFx type. */
+  if (refa->op1 == refb->op1) {  /* Same function. */
+    if (refa->op2 == refb->op2)
+      return ALIAS_MUST;  /* Same function, same upvalue idx. */
+    else
+      return ALIAS_NO;  /* Same function, different upvalue idx. */
+  } else {  /* Different functions, check disambiguation hash values. */
+    if (((refa->op2 ^ refb->op2) & 0xff))
+      return ALIAS_NO;  /* Upvalues with different hash values cannot alias. */
+    else
+      return ALIAS_MAY;  /* No conclusion can be drawn for same hash value. */
+  }
+}
+
+/* ULOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_uload(jit_State *J)
+{
+  IRRef uref = fins->op1;
+  IRRef lim = REF_BASE;  /* Search limit. */
+  IRIns *xr = IR(uref);
+  IRRef ref;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_USTORE];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    switch (aa_uref(xr, IR(store->op1))) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+
+  ref = J->chain[IR_ULOAD];
+  while (ref > lim) {
+    IRIns *ir = IR(ref);
+    if (ir->op1 == uref ||
+	(IR(ir->op1)->op12 == IR(uref)->op12 && IR(ir->op1)->o == IR(uref)->o))
+      return ref;  /* Match for identical or equal UREFx (non-CSEable UREFO). */
+    ref = ir->prev;
+  }
+  return lj_ir_emit(J);
+}
+
+/* USTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_ustore(jit_State *J)
+{
+  IRRef xref = fins->op1;  /* xREF reference. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRIns *xr = IR(xref);
+  IRRef1 *refp = &J->chain[IR_USTORE];
+  IRRef ref = *refp;
+  while (ref > xref) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_uref(xr, IR(store->op1))) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:	/* Store to MAYBE the same location. */
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:	/* Store to the same location. */
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards (includes conflicting loads). */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t))
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	store->o = IR_NOP;
+	store->t.irt = IRT_NIL;
+	store->op1 = store->op2 = 0;
+	store->prev = 0;
+	if (ref+1 < J->cur.nins &&
+	    store[1].o == IR_OBAR && store[1].op1 == xref) {
+	  IRRef1 *bp = &J->chain[IR_OBAR];
+	  IRIns *obar;
+	  for (obar = IR(*bp); *bp > ref+1; obar = IR(*bp))
+	    bp = &obar->prev;
+	  /* Remove OBAR, too. */
+	  *bp = obar->prev;
+	  obar->o = IR_NOP;
+	  obar->t.irt = IRT_NIL;
+	  obar->op1 = obar->op2 = 0;
+	  obar->prev = 0;
+	}
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* -- FLOAD forwarding and FSTORE elimination ----------------------------- */
+
+/* Alias analysis for field access.
+** Field loads are cheap and field stores are rare.
+** Simple disambiguation based on field types is good enough.
+*/
+static AliasRet aa_fref(jit_State *J, IRIns *refa, IRIns *refb)
+{
+  if (refa->op2 != refb->op2)
+    return ALIAS_NO;  /* Different fields. */
+  if (refa->op1 == refb->op1)
+    return ALIAS_MUST;  /* Same field, same object. */
+  else if (refa->op2 >= IRFL_TAB_META && refa->op2 <= IRFL_TAB_NOMM)
+    return aa_table(J, refa->op1, refb->op1);  /* Disambiguate tables. */
+  else
+    return ALIAS_MAY;  /* Same field, possibly different object. */
+}
+
+/* Only the loads for mutable fields end up here (see FOLD). */
+TRef LJ_FASTCALL lj_opt_fwd_fload(jit_State *J)
+{
+  IRRef oref = fins->op1;  /* Object reference. */
+  IRRef fid = fins->op2;  /* Field ID. */
+  IRRef lim = oref;  /* Search limit. */
+  IRRef ref;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_FSTORE];
+  while (ref > oref) {
+    IRIns *store = IR(ref);
+    switch (aa_fref(J, fins, IR(store->op1))) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+  /* No conflicting store: const-fold field loads from allocations. */
+  if (fid == IRFL_TAB_META) {
+    IRIns *ir = IR(oref);
+    if (ir->o == IR_TNEW || ir->o == IR_TDUP)
+      return lj_ir_knull(J, IRT_TAB);
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  return lj_opt_cselim(J, lim);
+}
+
+/* FSTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_fstore(jit_State *J)
+{
+  IRRef fref = fins->op1;  /* FREF reference. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRIns *xr = IR(fref);
+  IRRef1 *refp = &J->chain[IR_FSTORE];
+  IRRef ref = *refp;
+  while (ref > fref) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_fref(J, xr, IR(store->op1))) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards or conflicting loads. */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t) || (ir->o == IR_FLOAD && ir->op2 == xr->op2))
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	store->o = IR_NOP;
+	store->t.irt = IRT_NIL;
+	store->op1 = store->op2 = 0;
+	store->prev = 0;
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* -- XLOAD forwarding and XSTORE elimination ----------------------------- */
+
+/* Find cdata allocation for a reference (if any). */
+static IRIns *aa_findcnew(jit_State *J, IRIns *ir)
+{
+  while (ir->o == IR_ADD) {
+    if (!irref_isk(ir->op1)) {
+      IRIns *ir1 = aa_findcnew(J, IR(ir->op1));  /* Left-recursion. */
+      if (ir1) return ir1;
+    }
+    if (irref_isk(ir->op2)) return NULL;
+    ir = IR(ir->op2);  /* Flatten right-recursion. */
+  }
+  return ir->o == IR_CNEW ? ir : NULL;
+}
+
+/* Alias analysis for two cdata allocations. */
+static AliasRet aa_cnew(jit_State *J, IRIns *refa, IRIns *refb)
+{
+  IRIns *cnewa = aa_findcnew(J, refa);
+  IRIns *cnewb = aa_findcnew(J, refb);
+  if (cnewa == cnewb)
+    return ALIAS_MAY;  /* Same allocation or neither is an allocation. */
+  if (cnewa && cnewb)
+    return ALIAS_NO;  /* Two different allocations never alias. */
+  if (cnewb) { cnewa = cnewb; refb = refa; }
+  return aa_escape(J, cnewa, refb);
+}
+
+/* Alias analysis for XLOAD/XSTORE. */
+static AliasRet aa_xref(jit_State *J, IRIns *refa, IRIns *xa, IRIns *xb)
+{
+  ptrdiff_t ofsa = 0, ofsb = 0;
+  IRIns *refb = IR(xb->op1);
+  IRIns *basea = refa, *baseb = refb;
+  if (refa == refb && irt_sametype(xa->t, xb->t))
+    return ALIAS_MUST;  /* Shortcut for same refs with identical type. */
+  /* Offset-based disambiguation. */
+  if (refa->o == IR_ADD && irref_isk(refa->op2)) {
+    IRIns *irk = IR(refa->op2);
+    basea = IR(refa->op1);
+    ofsa = (LJ_64 && irk->o == IR_KINT64) ? (ptrdiff_t)ir_k64(irk)->u64 :
+					    (ptrdiff_t)irk->i;
+  }
+  if (refb->o == IR_ADD && irref_isk(refb->op2)) {
+    IRIns *irk = IR(refb->op2);
+    baseb = IR(refb->op1);
+    ofsb = (LJ_64 && irk->o == IR_KINT64) ? (ptrdiff_t)ir_k64(irk)->u64 :
+					    (ptrdiff_t)irk->i;
+  }
+  /* Treat constified pointers like base vs. base+offset. */
+  if (basea->o == IR_KPTR && baseb->o == IR_KPTR) {
+    ofsb += (char *)ir_kptr(baseb) - (char *)ir_kptr(basea);
+    baseb = basea;
+  }
+  /* This implements (very) strict aliasing rules.
+  ** Different types do NOT alias, except for differences in signedness.
+  ** Type punning through unions is allowed (but forces a reload).
+  */
+  if (basea == baseb) {
+    ptrdiff_t sza = irt_size(xa->t), szb = irt_size(xb->t);
+    if (ofsa == ofsb) {
+      if (sza == szb && irt_isfp(xa->t) == irt_isfp(xb->t))
+	return ALIAS_MUST;  /* Same-sized, same-kind. May need to convert. */
+    } else if (ofsa + sza <= ofsb || ofsb + szb <= ofsa) {
+      return ALIAS_NO;  /* Non-overlapping base+-o1 vs. base+-o2. */
+    }
+    /* NYI: extract, extend or reinterpret bits (int <-> fp). */
+    return ALIAS_MAY;  /* Overlapping or type punning: force reload. */
+  }
+  if (!irt_sametype(xa->t, xb->t) &&
+      !(irt_typerange(xa->t, IRT_I8, IRT_U64) &&
+	((xa->t.irt - IRT_I8) ^ (xb->t.irt - IRT_I8)) == 1))
+    return ALIAS_NO;
+  /* NYI: structural disambiguation. */
+  return aa_cnew(J, basea, baseb);  /* Try to disambiguate allocations. */
+}
+
+/* Return CSEd reference or 0. Caveat: swaps lower ref to the right! */
+static IRRef reassoc_trycse(jit_State *J, IROp op, IRRef op1, IRRef op2)
+{
+  IRRef ref = J->chain[op];
+  IRRef lim = op1;
+  if (op2 > lim) { lim = op2; op2 = op1; op1 = lim; }
+  while (ref > lim) {
+    IRIns *ir = IR(ref);
+    if (ir->op1 == op1 && ir->op2 == op2)
+      return ref;
+    ref = ir->prev;
+  }
+  return 0;
+}
+
+/* Reassociate index references. */
+static IRRef reassoc_xref(jit_State *J, IRIns *ir)
+{
+  ptrdiff_t ofs = 0;
+  if (ir->o == IR_ADD && irref_isk(ir->op2)) {  /* Get constant offset. */
+    IRIns *irk = IR(ir->op2);
+    ofs = (LJ_64 && irk->o == IR_KINT64) ? (ptrdiff_t)ir_k64(irk)->u64 :
+					   (ptrdiff_t)irk->i;
+    ir = IR(ir->op1);
+  }
+  if (ir->o == IR_ADD) {  /* Add of base + index. */
+    /* Index ref > base ref for loop-carried dependences. Only check op1. */
+    IRIns *ir2, *ir1 = IR(ir->op1);
+    int32_t shift = 0;
+    IRRef idxref;
+    /* Determine index shifts. Don't bother with IR_MUL here. */
+    if (ir1->o == IR_BSHL && irref_isk(ir1->op2))
+      shift = IR(ir1->op2)->i;
+    else if (ir1->o == IR_ADD && ir1->op1 == ir1->op2)
+      shift = 1;
+    else
+      ir1 = ir;
+    ir2 = IR(ir1->op1);
+    /* A non-reassociated add. Must be a loop-carried dependence. */
+    if (ir2->o == IR_ADD && irt_isint(ir2->t) && irref_isk(ir2->op2))
+      ofs += (ptrdiff_t)IR(ir2->op2)->i << shift;
+    else
+      return 0;
+    idxref = ir2->op1;
+    /* Try to CSE the reassociated chain. Give up if not found. */
+    if (ir1 != ir &&
+	!(idxref = reassoc_trycse(J, ir1->o, idxref,
+				  ir1->o == IR_BSHL ? ir1->op2 : idxref)))
+      return 0;
+    if (!(idxref = reassoc_trycse(J, IR_ADD, idxref, ir->op2)))
+      return 0;
+    if (ofs != 0) {
+      IRRef refk = tref_ref(lj_ir_kintp(J, ofs));
+      if (!(idxref = reassoc_trycse(J, IR_ADD, idxref, refk)))
+	return 0;
+    }
+    return idxref;  /* Success, found a reassociated index reference. Phew. */
+  }
+  return 0;  /* Failure. */
+}
+
+/* XLOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_xload(jit_State *J)
+{
+  IRRef xref = fins->op1;
+  IRIns *xr = IR(xref);
+  IRRef lim = xref;  /* Search limit. */
+  IRRef ref;
+
+  if ((fins->op2 & IRXLOAD_READONLY))
+    goto cselim;
+  if ((fins->op2 & IRXLOAD_VOLATILE))
+    goto doemit;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_XSTORE];
+retry:
+  if (J->chain[IR_CALLXS] > lim) lim = J->chain[IR_CALLXS];
+  if (J->chain[IR_XBAR] > lim) lim = J->chain[IR_XBAR];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    switch (aa_xref(J, xr, fins, store)) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST:
+      /* Emit conversion if the loaded type doesn't match the forwarded type. */
+      if (!irt_sametype(fins->t, IR(store->op2)->t)) {
+	IRType st = irt_type(fins->t);
+	if (st == IRT_I8 || st == IRT_I16) {  /* Trunc + sign-extend. */
+	  st |= IRCONV_SEXT;
+	} else if (st == IRT_U8 || st == IRT_U16) {  /* Trunc + zero-extend. */
+	} else if (st == IRT_INT) {
+	  st = irt_type(IR(store->op2)->t);  /* Needs dummy CONV.int.*. */
+	} else {  /* I64/U64 are boxed, U32 is hidden behind a CONV.num.u32. */
+	  goto store_fwd;
+	}
+	fins->ot = IRTI(IR_CONV);
+	fins->op1 = store->op2;
+	fins->op2 = (IRT_INT<<5)|st;
+	return RETRYFOLD;
+      }
+    store_fwd:
+      return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  ref = J->chain[IR_XLOAD];
+  while (ref > lim) {
+    /* CSE for XLOAD depends on the type, but not on the IRXLOAD_* flags. */
+    if (IR(ref)->op1 == xref && irt_sametype(IR(ref)->t, fins->t))
+      return ref;
+    ref = IR(ref)->prev;
+  }
+
+  /* Reassociate XLOAD across PHIs to handle a[i-1] forwarding case. */
+  if (!(fins->op2 & IRXLOAD_READONLY) && J->chain[IR_LOOP] &&
+      xref == fins->op1 && (xref = reassoc_xref(J, xr)) != 0) {
+    ref = J->chain[IR_XSTORE];
+    while (ref > lim)  /* Skip stores that have already been checked. */
+      ref = IR(ref)->prev;
+    lim = xref;
+    xr = IR(xref);
+    goto retry;  /* Retry with the reassociated reference. */
+  }
+doemit:
+  return EMITFOLD;
+}
+
+/* XSTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_xstore(jit_State *J)
+{
+  IRRef xref = fins->op1;
+  IRIns *xr = IR(xref);
+  IRRef lim = xref;  /* Search limit. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRRef1 *refp = &J->chain[IR_XSTORE];
+  IRRef ref = *refp;
+  if (J->chain[IR_CALLXS] > lim) lim = J->chain[IR_CALLXS];
+  if (J->chain[IR_XBAR] > lim) lim = J->chain[IR_XBAR];
+  while (ref > lim) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_xref(J, xr, fins, store)) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards or any XLOADs (no AA performed). */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t) || ir->o == IR_XLOAD)
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	store->o = IR_NOP;
+	store->t.irt = IRT_NIL;
+	store->op1 = store->op2 = 0;
+	store->prev = 0;
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* -- Forwarding of lj_tab_len -------------------------------------------- */
+
+/* This is rather simplistic right now, but better than nothing. */
+TRef LJ_FASTCALL lj_opt_fwd_tab_len(jit_State *J)
+{
+  IRRef tab = fins->op1;  /* Table reference. */
+  IRRef lim = tab;  /* Search limit. */
+  IRRef ref;
+
+  /* Any ASTORE is a conflict and limits the search. */
+  if (J->chain[IR_ASTORE] > lim) lim = J->chain[IR_ASTORE];
+
+  /* Search for conflicting HSTORE with numeric key. */
+  ref = J->chain[IR_HSTORE];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    IRIns *href = IR(store->op1);
+    IRIns *key = IR(href->op2);
+    if (irt_isnum(key->o == IR_KSLOT ? IR(key->op1)->t : key->t)) {
+      lim = ref;  /* Conflicting store found, limits search for TLEN. */
+      break;
+    }
+    ref = store->prev;
+  }
+
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  return lj_opt_cselim(J, lim);
+}
+
+/* -- ASTORE/HSTORE previous type analysis -------------------------------- */
+
+/* Check whether the previous value for a table store is non-nil.
+** This can be derived either from a previous store or from a previous
+** load (because all loads from tables perform a type check).
+**
+** The result of the analysis can be used to avoid the metatable check
+** and the guard against HREF returning niltv. Both of these are cheap,
+** so let's not spend too much effort on the analysis.
+**
+** A result of 1 is exact: previous value CANNOT be nil.
+** A result of 0 is inexact: previous value MAY be nil.
+*/
+int lj_opt_fwd_wasnonnil(jit_State *J, IROpT loadop, IRRef xref)
+{
+  /* First check stores. */
+  IRRef ref = J->chain[loadop+IRDELTA_L2S];
+  while (ref > xref) {
+    IRIns *store = IR(ref);
+    if (store->op1 == xref) {  /* Same xREF. */
+      /* A nil store MAY alias, but a non-nil store MUST alias. */
+      return !irt_isnil(store->t);
+    } else if (irt_isnil(store->t)) {  /* Must check any nil store. */
+      IRRef skref = IR(store->op1)->op2;
+      IRRef xkref = IR(xref)->op2;
+      /* Same key type MAY alias. Need ALOAD check due to multiple int types. */
+      if (loadop == IR_ALOAD || irt_sametype(IR(skref)->t, IR(xkref)->t)) {
+	if (skref == xkref || !irref_isk(skref) || !irref_isk(xkref))
+	  return 0;  /* A nil store with same const key or var key MAY alias. */
+	/* Different const keys CANNOT alias. */
+      }  /* Different key types CANNOT alias. */
+    }  /* Other non-nil stores MAY alias. */
+    ref = store->prev;
+  }
+
+  /* Check loads since nothing could be derived from stores. */
+  ref = J->chain[loadop];
+  while (ref > xref) {
+    IRIns *load = IR(ref);
+    if (load->op1 == xref) {  /* Same xREF. */
+      /* A nil load MAY alias, but a non-nil load MUST alias. */
+      return !irt_isnil(load->t);
+    }  /* Other non-nil loads MAY alias. */
+    ref = load->prev;
+  }
+  return 0;  /* Nothing derived at all, previous value MAY be nil. */
+}
+
+/* ------------------------------------------------------------------------ */
+
+#undef IR
+#undef fins
+#undef fleft
+#undef fright
+
+#endif
diff --git a/lib/luajit/src/lj_opt_narrow.c b/lib/luajit/src/lj_opt_narrow.c
new file mode 100644
index 00000000..2cecf65d
--- /dev/null
+++ b/lib/luajit/src/lj_opt_narrow.c
@@ -0,0 +1,648 @@
+/*
+** NARROW: Narrowing of numbers to integers (double to int32_t).
+** STRIPOV: Stripping of overflow checks.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_narrow_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+
+/* Rationale for narrowing optimizations:
+**
+** Lua has only a single number type and this is a FP double by default.
+** Narrowing doubles to integers does not pay off for the interpreter on a
+** current-generation x86/x64 machine. Most FP operations need the same
+** amount of execution resources as their integer counterparts, except
+** with slightly longer latencies. Longer latencies are a non-issue for
+** the interpreter, since they are usually hidden by other overhead.
+**
+** The total CPU execution bandwidth is the sum of the bandwidth of the FP
+** and the integer units, because they execute in parallel. The FP units
+** have an equal or higher bandwidth than the integer units. Not using
+** them means losing execution bandwidth. Moving work away from them to
+** the already quite busy integer units is a losing proposition.
+**
+** The situation for JIT-compiled code is a bit different: the higher code
+** density makes the extra latencies much more visible. Tight loops expose
+** the latencies for updating the induction variables. Array indexing
+** requires narrowing conversions with high latencies and additional
+** guards (to check that the index is really an integer). And many common
+** optimizations only work on integers.
+**
+** One solution would be speculative, eager narrowing of all number loads.
+** This causes many problems, like losing -0 or the need to resolve type
+** mismatches between traces. It also effectively forces the integer type
+** to have overflow-checking semantics. This impedes many basic
+** optimizations and requires adding overflow checks to all integer
+** arithmetic operations (whereas FP arithmetics can do without).
+**
+** Always replacing an FP op with an integer op plus an overflow check is
+** counter-productive on a current-generation super-scalar CPU. Although
+** the overflow check branches are highly predictable, they will clog the
+** execution port for the branch unit and tie up reorder buffers. This is
+** turning a pure data-flow dependency into a different data-flow
+** dependency (with slightly lower latency) *plus* a control dependency.
+** In general, you don't want to do this since latencies due to data-flow
+** dependencies can be well hidden by out-of-order execution.
+**
+** A better solution is to keep all numbers as FP values and only narrow
+** when it's beneficial to do so. LuaJIT uses predictive narrowing for
+** induction variables and demand-driven narrowing for index expressions,
+** integer arguments and bit operations. Additionally it can eliminate or
+** hoist most of the resulting overflow checks. Regular arithmetic
+** computations are never narrowed to integers.
+**
+** The integer type in the IR has convenient wrap-around semantics and
+** ignores overflow. Extra operations have been added for
+** overflow-checking arithmetic (ADDOV/SUBOV) instead of an extra type.
+** Apart from reducing overall complexity of the compiler, this also
+** nicely solves the problem where you want to apply algebraic
+** simplifications to ADD, but not to ADDOV. And the x86/x64 assembler can
+** use lea instead of an add for integer ADD, but not for ADDOV (lea does
+** not affect the flags, but it helps to avoid register moves).
+**
+**
+** All of the above has to be reconsidered for architectures with slow FP
+** operations or without a hardware FPU. The dual-number mode of LuaJIT
+** addresses this issue. Arithmetic operations are performed on integers
+** as far as possible and overflow checks are added as needed.
+**
+** This implies that narrowing for integer arguments and bit operations
+** should also strip overflow checks, e.g. replace ADDOV with ADD. The
+** original overflow guards are weak and can be eliminated by DCE, if
+** there's no other use.
+**
+** A slight twist is that it's usually beneficial to use overflow-checked
+** integer arithmetics if all inputs are already integers. This is the only
+** change that affects the single-number mode, too.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+#define fins			(&J->fold.ins)
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- Elimination of narrowing type conversions --------------------------- */
+
+/* Narrowing of index expressions and bit operations is demand-driven. The
+** trace recorder emits a narrowing type conversion (CONV.int.num or TOBIT)
+** in all of these cases (e.g. array indexing or string indexing). FOLD
+** already takes care of eliminating simple redundant conversions like
+** CONV.int.num(CONV.num.int(x)) ==> x.
+**
+** But the surrounding code is FP-heavy and arithmetic operations are
+** performed on FP numbers (for the single-number mode). Consider a common
+** example such as 'x=t[i+1]', with 'i' already an integer (due to induction
+** variable narrowing). The index expression would be recorded as
+**   CONV.int.num(ADD(CONV.num.int(i), 1))
+** which is clearly suboptimal.
+**
+** One can do better by recursively backpropagating the narrowing type
+** conversion across FP arithmetic operations. This turns FP ops into
+** their corresponding integer counterparts. Depending on the semantics of
+** the conversion they also need to check for overflow. Currently only ADD
+** and SUB are supported.
+**
+** The above example can be rewritten as
+**   ADDOV(CONV.int.num(CONV.num.int(i)), 1)
+** and then into ADDOV(i, 1) after folding of the conversions. The original
+** FP ops remain in the IR and are eliminated by DCE since all references to
+** them are gone.
+**
+** [In dual-number mode the trace recorder already emits ADDOV etc., but
+** this can be further reduced. See below.]
+**
+** Special care has to be taken to avoid narrowing across an operation
+** which is potentially operating on non-integral operands. One obvious
+** case is when an expression contains a non-integral constant, but ends
+** up as an integer index at runtime (like t[x+1.5] with x=0.5).
+**
+** Operations with two non-constant operands illustrate a similar problem
+** (like t[a+b] with a=1.5 and b=2.5). Backpropagation has to stop there,
+** unless it can be proven that either operand is integral (e.g. by CSEing
+** a previous conversion). As a not-so-obvious corollary this logic also
+** applies for a whole expression tree (e.g. t[(a+1)+(b+1)]).
+**
+** Correctness of the transformation is guaranteed by avoiding to expand
+** the tree by adding more conversions than the one we would need to emit
+** if not backpropagating. TOBIT employs a more optimistic rule, because
+** the conversion has special semantics, designed to make the life of the
+** compiler writer easier. ;-)
+**
+** Using on-the-fly backpropagation of an expression tree doesn't work
+** because it's unknown whether the transform is correct until the end.
+** This either requires IR rollback and cache invalidation for every
+** subtree or a two-pass algorithm. The former didn't work out too well,
+** so the code now combines a recursive collector with a stack-based
+** emitter.
+**
+** [A recursive backpropagation algorithm with backtracking, employing
+** skip-list lookup and round-robin caching, emitting stack operations
+** on-the-fly for a stack-based interpreter -- and all of that in a meager
+** kilobyte? Yep, compilers are a great treasure chest. Throw away your
+** textbooks and read the codebase of a compiler today!]
+**
+** There's another optimization opportunity for array indexing: it's
+** always accompanied by an array bounds-check. The outermost overflow
+** check may be delegated to the ABC operation. This works because ABC is
+** an unsigned comparison and wrap-around due to overflow creates negative
+** numbers.
+**
+** But this optimization is only valid for constants that cannot overflow
+** an int32_t into the range of valid array indexes [0..2^27+1). A check
+** for +-2^30 is safe since -2^31 - 2^30 wraps to 2^30 and 2^31-1 + 2^30
+** wraps to -2^30-1.
+**
+** It's also good enough in practice, since e.g. t[i+1] or t[i-10] are
+** quite common. So the above example finally ends up as ADD(i, 1)!
+**
+** Later on, the assembler is able to fuse the whole array reference and
+** the ADD into the memory operands of loads and other instructions. This
+** is why LuaJIT is able to generate very pretty (and fast) machine code
+** for array indexing. And that, my dear, concludes another story about
+** one of the hidden secrets of LuaJIT ...
+*/
+
+/* Maximum backpropagation depth and maximum stack size. */
+#define NARROW_MAX_BACKPROP	100
+#define NARROW_MAX_STACK	256
+
+/* The stack machine has a 32 bit instruction format: [IROpT | IRRef1]
+** The lower 16 bits hold a reference (or 0). The upper 16 bits hold
+** the IR opcode + type or one of the following special opcodes:
+*/
+enum {
+  NARROW_REF,		/* Push ref. */
+  NARROW_CONV,		/* Push conversion of ref. */
+  NARROW_SEXT,		/* Push sign-extension of ref. */
+  NARROW_INT		/* Push KINT ref. The next code holds an int32_t. */
+};
+
+typedef uint32_t NarrowIns;
+
+#define NARROWINS(op, ref)	(((op) << 16) + (ref))
+#define narrow_op(ins)		((IROpT)((ins) >> 16))
+#define narrow_ref(ins)		((IRRef1)(ins))
+
+/* Context used for narrowing of type conversions. */
+typedef struct NarrowConv {
+  jit_State *J;		/* JIT compiler state. */
+  NarrowIns *sp;	/* Current stack pointer. */
+  NarrowIns *maxsp;	/* Maximum stack pointer minus redzone. */
+  int lim;		/* Limit on the number of emitted conversions. */
+  IRRef mode;		/* Conversion mode (IRCONV_*). */
+  IRType t;		/* Destination type: IRT_INT or IRT_I64. */
+  NarrowIns stack[NARROW_MAX_STACK];  /* Stack holding stack-machine code. */
+} NarrowConv;
+
+/* Lookup a reference in the backpropagation cache. */
+static BPropEntry *narrow_bpc_get(jit_State *J, IRRef1 key, IRRef mode)
+{
+  ptrdiff_t i;
+  for (i = 0; i < BPROP_SLOTS; i++) {
+    BPropEntry *bp = &J->bpropcache[i];
+    /* Stronger checks are ok, too. */
+    if (bp->key == key && bp->mode >= mode &&
+	((bp->mode ^ mode) & IRCONV_MODEMASK) == 0)
+      return bp;
+  }
+  return NULL;
+}
+
+/* Add an entry to the backpropagation cache. */
+static void narrow_bpc_set(jit_State *J, IRRef1 key, IRRef1 val, IRRef mode)
+{
+  uint32_t slot = J->bpropslot;
+  BPropEntry *bp = &J->bpropcache[slot];
+  J->bpropslot = (slot + 1) & (BPROP_SLOTS-1);
+  bp->key = key;
+  bp->val = val;
+  bp->mode = mode;
+}
+
+/* Backpropagate overflow stripping. */
+static void narrow_stripov_backprop(NarrowConv *nc, IRRef ref, int depth)
+{
+  jit_State *J = nc->J;
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_ADDOV || ir->o == IR_SUBOV ||
+      (ir->o == IR_MULOV && (nc->mode & IRCONV_CONVMASK) == IRCONV_ANY)) {
+    BPropEntry *bp = narrow_bpc_get(nc->J, ref, IRCONV_TOBIT);
+    if (bp) {
+      ref = bp->val;
+    } else if (++depth < NARROW_MAX_BACKPROP && nc->sp < nc->maxsp) {
+      narrow_stripov_backprop(nc, ir->op1, depth);
+      narrow_stripov_backprop(nc, ir->op2, depth);
+      *nc->sp++ = NARROWINS(IRT(ir->o - IR_ADDOV + IR_ADD, IRT_INT), ref);
+      return;
+    }
+  }
+  *nc->sp++ = NARROWINS(NARROW_REF, ref);
+}
+
+/* Backpropagate narrowing conversion. Return number of needed conversions. */
+static int narrow_conv_backprop(NarrowConv *nc, IRRef ref, int depth)
+{
+  jit_State *J = nc->J;
+  IRIns *ir = IR(ref);
+  IRRef cref;
+
+  /* Check the easy cases first. */
+  if (ir->o == IR_CONV && (ir->op2 & IRCONV_SRCMASK) == IRT_INT) {
+    if ((nc->mode & IRCONV_CONVMASK) <= IRCONV_ANY)
+      narrow_stripov_backprop(nc, ir->op1, depth+1);
+    else
+      *nc->sp++ = NARROWINS(NARROW_REF, ir->op1);  /* Undo conversion. */
+    if (nc->t == IRT_I64)
+      *nc->sp++ = NARROWINS(NARROW_SEXT, 0);  /* Sign-extend integer. */
+    return 0;
+  } else if (ir->o == IR_KNUM) {  /* Narrow FP constant. */
+    lua_Number n = ir_knum(ir)->n;
+    if ((nc->mode & IRCONV_CONVMASK) == IRCONV_TOBIT) {
+      /* Allows a wider range of constants. */
+      int64_t k64 = (int64_t)n;
+      if (n == (lua_Number)k64) {  /* Only if const doesn't lose precision. */
+	*nc->sp++ = NARROWINS(NARROW_INT, 0);
+	*nc->sp++ = (NarrowIns)k64;  /* But always truncate to 32 bits. */
+	return 0;
+      }
+    } else {
+      int32_t k = lj_num2int(n);
+      /* Only if constant is a small integer. */
+      if (checki16(k) && n == (lua_Number)k) {
+	*nc->sp++ = NARROWINS(NARROW_INT, 0);
+	*nc->sp++ = (NarrowIns)k;
+	return 0;
+      }
+    }
+    return 10;  /* Never narrow other FP constants (this is rare). */
+  }
+
+  /* Try to CSE the conversion. Stronger checks are ok, too. */
+  cref = J->chain[fins->o];
+  while (cref > ref) {
+    IRIns *cr = IR(cref);
+    if (cr->op1 == ref &&
+	(fins->o == IR_TOBIT ||
+	 ((cr->op2 & IRCONV_MODEMASK) == (nc->mode & IRCONV_MODEMASK) &&
+	  irt_isguard(cr->t) >= irt_isguard(fins->t)))) {
+      *nc->sp++ = NARROWINS(NARROW_REF, cref);
+      return 0;  /* Already there, no additional conversion needed. */
+    }
+    cref = cr->prev;
+  }
+
+  /* Backpropagate across ADD/SUB. */
+  if (ir->o == IR_ADD || ir->o == IR_SUB) {
+    /* Try cache lookup first. */
+    IRRef mode = nc->mode;
+    BPropEntry *bp;
+    /* Inner conversions need a stronger check. */
+    if ((mode & IRCONV_CONVMASK) == IRCONV_INDEX && depth > 0)
+      mode += IRCONV_CHECK-IRCONV_INDEX;
+    bp = narrow_bpc_get(nc->J, (IRRef1)ref, mode);
+    if (bp) {
+      *nc->sp++ = NARROWINS(NARROW_REF, bp->val);
+      return 0;
+    } else if (nc->t == IRT_I64) {
+      /* Try sign-extending from an existing (checked) conversion to int. */
+      mode = (IRT_INT<<5)|IRT_NUM|IRCONV_INDEX;
+      bp = narrow_bpc_get(nc->J, (IRRef1)ref, mode);
+      if (bp) {
+	*nc->sp++ = NARROWINS(NARROW_REF, bp->val);
+	*nc->sp++ = NARROWINS(NARROW_SEXT, 0);
+	return 0;
+      }
+    }
+    if (++depth < NARROW_MAX_BACKPROP && nc->sp < nc->maxsp) {
+      NarrowIns *savesp = nc->sp;
+      int count = narrow_conv_backprop(nc, ir->op1, depth);
+      count += narrow_conv_backprop(nc, ir->op2, depth);
+      if (count <= nc->lim) {  /* Limit total number of conversions. */
+	*nc->sp++ = NARROWINS(IRT(ir->o, nc->t), ref);
+	return count;
+      }
+      nc->sp = savesp;  /* Too many conversions, need to backtrack. */
+    }
+  }
+
+  /* Otherwise add a conversion. */
+  *nc->sp++ = NARROWINS(NARROW_CONV, ref);
+  return 1;
+}
+
+/* Emit the conversions collected during backpropagation. */
+static IRRef narrow_conv_emit(jit_State *J, NarrowConv *nc)
+{
+  /* The fins fields must be saved now -- emitir() overwrites them. */
+  IROpT guardot = irt_isguard(fins->t) ? IRTG(IR_ADDOV-IR_ADD, 0) : 0;
+  IROpT convot = fins->ot;
+  IRRef1 convop2 = fins->op2;
+  NarrowIns *next = nc->stack;  /* List of instructions from backpropagation. */
+  NarrowIns *last = nc->sp;
+  NarrowIns *sp = nc->stack;  /* Recycle the stack to store operands. */
+  while (next < last) {  /* Simple stack machine to process the ins. list. */
+    NarrowIns ref = *next++;
+    IROpT op = narrow_op(ref);
+    if (op == NARROW_REF) {
+      *sp++ = ref;
+    } else if (op == NARROW_CONV) {
+      *sp++ = emitir_raw(convot, ref, convop2);  /* Raw emit avoids a loop. */
+    } else if (op == NARROW_SEXT) {
+      lua_assert(sp >= nc->stack+1);
+      sp[-1] = emitir(IRT(IR_CONV, IRT_I64), sp[-1],
+		      (IRT_I64<<5)|IRT_INT|IRCONV_SEXT);
+    } else if (op == NARROW_INT) {
+      lua_assert(next < last);
+      *sp++ = nc->t == IRT_I64 ?
+	      lj_ir_kint64(J, (int64_t)(int32_t)*next++) :
+	      lj_ir_kint(J, *next++);
+    } else {  /* Regular IROpT. Pops two operands and pushes one result. */
+      IRRef mode = nc->mode;
+      lua_assert(sp >= nc->stack+2);
+      sp--;
+      /* Omit some overflow checks for array indexing. See comments above. */
+      if ((mode & IRCONV_CONVMASK) == IRCONV_INDEX) {
+	if (next == last && irref_isk(narrow_ref(sp[0])) &&
+	  (uint32_t)IR(narrow_ref(sp[0]))->i + 0x40000000u < 0x80000000u)
+	  guardot = 0;
+	else  /* Otherwise cache a stronger check. */
+	  mode += IRCONV_CHECK-IRCONV_INDEX;
+      }
+      sp[-1] = emitir(op+guardot, sp[-1], sp[0]);
+      /* Add to cache. */
+      if (narrow_ref(ref))
+	narrow_bpc_set(J, narrow_ref(ref), narrow_ref(sp[-1]), mode);
+    }
+  }
+  lua_assert(sp == nc->stack+1);
+  return nc->stack[0];
+}
+
+/* Narrow a type conversion of an arithmetic operation. */
+TRef LJ_FASTCALL lj_opt_narrow_convert(jit_State *J)
+{
+  if ((J->flags & JIT_F_OPT_NARROW)) {
+    NarrowConv nc;
+    nc.J = J;
+    nc.sp = nc.stack;
+    nc.maxsp = &nc.stack[NARROW_MAX_STACK-4];
+    nc.t = irt_type(fins->t);
+    if (fins->o == IR_TOBIT) {
+      nc.mode = IRCONV_TOBIT;  /* Used only in the backpropagation cache. */
+      nc.lim = 2;  /* TOBIT can use a more optimistic rule. */
+    } else {
+      nc.mode = fins->op2;
+      nc.lim = 1;
+    }
+    if (narrow_conv_backprop(&nc, fins->op1, 0) <= nc.lim)
+      return narrow_conv_emit(J, &nc);
+  }
+  return NEXTFOLD;
+}
+
+/* -- Narrowing of implicit conversions ----------------------------------- */
+
+/* Recursively strip overflow checks. */
+static TRef narrow_stripov(jit_State *J, TRef tr, int lastop, IRRef mode)
+{
+  IRRef ref = tref_ref(tr);
+  IRIns *ir = IR(ref);
+  int op = ir->o;
+  if (op >= IR_ADDOV && op <= lastop) {
+    BPropEntry *bp = narrow_bpc_get(J, ref, mode);
+    if (bp) {
+      return TREF(bp->val, irt_t(IR(bp->val)->t));
+    } else {
+      IRRef op1 = ir->op1, op2 = ir->op2;  /* The IR may be reallocated. */
+      op1 = narrow_stripov(J, op1, lastop, mode);
+      op2 = narrow_stripov(J, op2, lastop, mode);
+      tr = emitir(IRT(op - IR_ADDOV + IR_ADD,
+		      ((mode & IRCONV_DSTMASK) >> IRCONV_DSH)), op1, op2);
+      narrow_bpc_set(J, ref, tref_ref(tr), mode);
+    }
+  } else if (LJ_64 && (mode & IRCONV_SEXT) && !irt_is64(ir->t)) {
+    tr = emitir(IRT(IR_CONV, IRT_INTP), tr, mode);
+  }
+  return tr;
+}
+
+/* Narrow array index. */
+TRef LJ_FASTCALL lj_opt_narrow_index(jit_State *J, TRef tr)
+{
+  IRIns *ir;
+  lua_assert(tref_isnumber(tr));
+  if (tref_isnum(tr))  /* Conversion may be narrowed, too. See above. */
+    return emitir(IRTGI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_INDEX);
+  /* Omit some overflow checks for array indexing. See comments above. */
+  ir = IR(tref_ref(tr));
+  if ((ir->o == IR_ADDOV || ir->o == IR_SUBOV) && irref_isk(ir->op2) &&
+      (uint32_t)IR(ir->op2)->i + 0x40000000u < 0x80000000u)
+    return emitir(IRTI(ir->o - IR_ADDOV + IR_ADD), ir->op1, ir->op2);
+  return tr;
+}
+
+/* Narrow conversion to integer operand (overflow undefined). */
+TRef LJ_FASTCALL lj_opt_narrow_toint(jit_State *J, TRef tr)
+{
+  if (tref_isstr(tr))
+    tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+  if (tref_isnum(tr))  /* Conversion may be narrowed, too. See above. */
+    return emitir(IRTI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_ANY);
+  if (!tref_isinteger(tr))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  /*
+  ** Undefined overflow semantics allow stripping of ADDOV, SUBOV and MULOV.
+  ** Use IRCONV_TOBIT for the cache entries, since the semantics are the same.
+  */
+  return narrow_stripov(J, tr, IR_MULOV, (IRT_INT<<5)|IRT_INT|IRCONV_TOBIT);
+}
+
+/* Narrow conversion to bitop operand (overflow wrapped). */
+TRef LJ_FASTCALL lj_opt_narrow_tobit(jit_State *J, TRef tr)
+{
+  if (tref_isstr(tr))
+    tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+  if (tref_isnum(tr))  /* Conversion may be narrowed, too. See above. */
+    return emitir(IRTI(IR_TOBIT), tr, lj_ir_knum_tobit(J));
+  if (!tref_isinteger(tr))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  /*
+  ** Wrapped overflow semantics allow stripping of ADDOV and SUBOV.
+  ** MULOV cannot be stripped due to precision widening.
+  */
+  return narrow_stripov(J, tr, IR_SUBOV, (IRT_INT<<5)|IRT_INT|IRCONV_TOBIT);
+}
+
+#if LJ_HASFFI
+/* Narrow C array index (overflow undefined). */
+TRef LJ_FASTCALL lj_opt_narrow_cindex(jit_State *J, TRef tr)
+{
+  lua_assert(tref_isnumber(tr));
+  if (tref_isnum(tr))
+    return emitir(IRT(IR_CONV, IRT_INTP), tr,
+		  (IRT_INTP<<5)|IRT_NUM|IRCONV_TRUNC|IRCONV_ANY);
+  /* Undefined overflow semantics allow stripping of ADDOV, SUBOV and MULOV. */
+  return narrow_stripov(J, tr, IR_MULOV,
+			LJ_64 ? ((IRT_INTP<<5)|IRT_INT|IRCONV_SEXT) :
+				((IRT_INTP<<5)|IRT_INT|IRCONV_TOBIT));
+}
+#endif
+
+/* -- Narrowing of arithmetic operators ----------------------------------- */
+
+/* Check whether a number fits into an int32_t (-0 is ok, too). */
+static int numisint(lua_Number n)
+{
+  return (n == (lua_Number)lj_num2int(n));
+}
+
+/* Narrowing of arithmetic operations. */
+TRef lj_opt_narrow_arith(jit_State *J, TRef rb, TRef rc,
+			 TValue *vb, TValue *vc, IROp op)
+{
+  if (tref_isstr(rb)) {
+    rb = emitir(IRTG(IR_STRTO, IRT_NUM), rb, 0);
+    lj_strscan_num(strV(vb), vb);
+  }
+  if (tref_isstr(rc)) {
+    rc = emitir(IRTG(IR_STRTO, IRT_NUM), rc, 0);
+    lj_strscan_num(strV(vc), vc);
+  }
+  /* Must not narrow MUL in non-DUALNUM variant, because it loses -0. */
+  if ((op >= IR_ADD && op <= (LJ_DUALNUM ? IR_MUL : IR_SUB)) &&
+      tref_isinteger(rb) && tref_isinteger(rc) &&
+      numisint(lj_vm_foldarith(numberVnum(vb), numberVnum(vc),
+			       (int)op - (int)IR_ADD)))
+    return emitir(IRTGI((int)op - (int)IR_ADD + (int)IR_ADDOV), rb, rc);
+  if (!tref_isnum(rb)) rb = emitir(IRTN(IR_CONV), rb, IRCONV_NUM_INT);
+  if (!tref_isnum(rc)) rc = emitir(IRTN(IR_CONV), rc, IRCONV_NUM_INT);
+  return emitir(IRTN(op), rb, rc);
+}
+
+/* Narrowing of unary minus operator. */
+TRef lj_opt_narrow_unm(jit_State *J, TRef rc, TValue *vc)
+{
+  if (tref_isstr(rc)) {
+    rc = emitir(IRTG(IR_STRTO, IRT_NUM), rc, 0);
+    lj_strscan_num(strV(vc), vc);
+  }
+  if (tref_isinteger(rc)) {
+    if ((uint32_t)numberVint(vc) != 0x80000000u)
+      return emitir(IRTGI(IR_SUBOV), lj_ir_kint(J, 0), rc);
+    rc = emitir(IRTN(IR_CONV), rc, IRCONV_NUM_INT);
+  }
+  return emitir(IRTN(IR_NEG), rc, lj_ir_knum_neg(J));
+}
+
+/* Narrowing of modulo operator. */
+TRef lj_opt_narrow_mod(jit_State *J, TRef rb, TRef rc, TValue *vc)
+{
+  TRef tmp;
+  if (tvisstr(vc) && !lj_strscan_num(strV(vc), vc))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  if ((LJ_DUALNUM || (J->flags & JIT_F_OPT_NARROW)) &&
+      tref_isinteger(rb) && tref_isinteger(rc) &&
+      (tvisint(vc) ? intV(vc) != 0 : !tviszero(vc))) {
+    emitir(IRTGI(IR_NE), rc, lj_ir_kint(J, 0));
+    return emitir(IRTI(IR_MOD), rb, rc);
+  }
+  /* b % c ==> b - floor(b/c)*c */
+  rb = lj_ir_tonum(J, rb);
+  rc = lj_ir_tonum(J, rc);
+  tmp = emitir(IRTN(IR_DIV), rb, rc);
+  tmp = emitir(IRTN(IR_FPMATH), tmp, IRFPM_FLOOR);
+  tmp = emitir(IRTN(IR_MUL), tmp, rc);
+  return emitir(IRTN(IR_SUB), rb, tmp);
+}
+
+/* Narrowing of power operator or math.pow. */
+TRef lj_opt_narrow_pow(jit_State *J, TRef rb, TRef rc, TValue *vc)
+{
+  if (tvisstr(vc) && !lj_strscan_num(strV(vc), vc))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  /* Narrowing must be unconditional to preserve (-x)^i semantics. */
+  if (tvisint(vc) || numisint(numV(vc))) {
+    int checkrange = 0;
+    /* Split pow is faster for bigger exponents. But do this only for (+k)^i. */
+    if (tref_isk(rb) && (int32_t)ir_knum(IR(tref_ref(rb)))->u32.hi >= 0) {
+      int32_t k = numberVint(vc);
+      if (!(k >= -65536 && k <= 65536)) goto split_pow;
+      checkrange = 1;
+    }
+    if (!tref_isinteger(rc)) {
+      if (tref_isstr(rc))
+	rc = emitir(IRTG(IR_STRTO, IRT_NUM), rc, 0);
+      /* Guarded conversion to integer! */
+      rc = emitir(IRTGI(IR_CONV), rc, IRCONV_INT_NUM|IRCONV_CHECK);
+    }
+    if (checkrange && !tref_isk(rc)) {  /* Range guard: -65536 <= i <= 65536 */
+      TRef tmp = emitir(IRTI(IR_ADD), rc, lj_ir_kint(J, 65536));
+      emitir(IRTGI(IR_ULE), tmp, lj_ir_kint(J, 2*65536));
+    }
+    return emitir(IRTN(IR_POW), rb, rc);
+  }
+split_pow:
+  /* FOLD covers most cases, but some are easier to do here. */
+  if (tref_isk(rb) && tvispone(ir_knum(IR(tref_ref(rb)))))
+    return rb;  /* 1 ^ x ==> 1 */
+  rc = lj_ir_tonum(J, rc);
+  if (tref_isk(rc) && ir_knum(IR(tref_ref(rc)))->n == 0.5)
+    return emitir(IRTN(IR_FPMATH), rb, IRFPM_SQRT);  /* x ^ 0.5 ==> sqrt(x) */
+  /* Split up b^c into exp2(c*log2(b)). Assembler may rejoin later. */
+  rb = emitir(IRTN(IR_FPMATH), rb, IRFPM_LOG2);
+  rc = emitir(IRTN(IR_MUL), rb, rc);
+  return emitir(IRTN(IR_FPMATH), rc, IRFPM_EXP2);
+}
+
+/* -- Predictive narrowing of induction variables ------------------------- */
+
+/* Narrow a single runtime value. */
+static int narrow_forl(jit_State *J, cTValue *o)
+{
+  if (tvisint(o)) return 1;
+  if (LJ_DUALNUM || (J->flags & JIT_F_OPT_NARROW)) return numisint(numV(o));
+  return 0;
+}
+
+/* Narrow the FORL index type by looking at the runtime values. */
+IRType lj_opt_narrow_forl(jit_State *J, cTValue *tv)
+{
+  lua_assert(tvisnumber(&tv[FORL_IDX]) &&
+	     tvisnumber(&tv[FORL_STOP]) &&
+	     tvisnumber(&tv[FORL_STEP]));
+  /* Narrow only if the runtime values of start/stop/step are all integers. */
+  if (narrow_forl(J, &tv[FORL_IDX]) &&
+      narrow_forl(J, &tv[FORL_STOP]) &&
+      narrow_forl(J, &tv[FORL_STEP])) {
+    /* And if the loop index can't possibly overflow. */
+    lua_Number step = numberVnum(&tv[FORL_STEP]);
+    lua_Number sum = numberVnum(&tv[FORL_STOP]) + step;
+    if (0 <= step ? (sum <= 2147483647.0) : (sum >= -2147483648.0))
+      return IRT_INT;
+  }
+  return IRT_NUM;
+}
+
+#undef IR
+#undef fins
+#undef emitir
+#undef emitir_raw
+
+#endif
diff --git a/lib/luajit/src/lj_opt_sink.c b/lib/luajit/src/lj_opt_sink.c
new file mode 100644
index 00000000..3a333461
--- /dev/null
+++ b/lib/luajit/src/lj_opt_sink.c
@@ -0,0 +1,245 @@
+/*
+** SINK: Allocation Sinking and Store Sinking.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_sink_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_target.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Check whether the store ref points to an eligible allocation. */
+static IRIns *sink_checkalloc(jit_State *J, IRIns *irs)
+{
+  IRIns *ir = IR(irs->op1);
+  if (!irref_isk(ir->op2))
+    return NULL;  /* Non-constant key. */
+  if (ir->o == IR_HREFK || ir->o == IR_AREF)
+    ir = IR(ir->op1);
+  else if (!(ir->o == IR_HREF || ir->o == IR_NEWREF ||
+	     ir->o == IR_FREF || ir->o == IR_ADD))
+    return NULL;  /* Unhandled reference type (for XSTORE). */
+  ir = IR(ir->op1);
+  if (!(ir->o == IR_TNEW || ir->o == IR_TDUP || ir->o == IR_CNEW))
+    return NULL;  /* Not an allocation. */
+  return ir;  /* Return allocation. */
+}
+
+/* Recursively check whether a value depends on a PHI. */
+static int sink_phidep(jit_State *J, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (irt_isphi(ir->t)) return 1;
+  if (ir->op1 >= REF_FIRST && sink_phidep(J, ir->op1)) return 1;
+  if (ir->op2 >= REF_FIRST && sink_phidep(J, ir->op2)) return 1;
+  return 0;
+}
+
+/* Check whether a value is a sinkable PHI or loop-invariant. */
+static int sink_checkphi(jit_State *J, IRIns *ira, IRRef ref)
+{
+  if (ref >= REF_FIRST) {
+    IRIns *ir = IR(ref);
+    if (irt_isphi(ir->t) || (ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT &&
+			     irt_isphi(IR(ir->op1)->t))) {
+      ira->prev++;
+      return 1;  /* Sinkable PHI. */
+    }
+    /* Otherwise the value must be loop-invariant. */
+    return ref < J->loopref && !sink_phidep(J, ref);
+  }
+  return 1;  /* Constant (non-PHI). */
+}
+
+/* Mark non-sinkable allocations using single-pass backward propagation.
+**
+** Roots for the marking process are:
+** - Some PHIs or snapshots (see below).
+** - Non-PHI, non-constant values stored to PHI allocations.
+** - All guards.
+** - Any remaining loads not eliminated by store-to-load forwarding.
+** - Stores with non-constant keys.
+** - All stored values.
+*/
+static void sink_mark_ins(jit_State *J)
+{
+  IRIns *ir, *irlast = IR(J->cur.nins-1);
+  for (ir = irlast ; ; ir--) {
+    switch (ir->o) {
+    case IR_BASE:
+      return;  /* Finished. */
+    case IR_CALLL:  /* IRCALL_lj_tab_len */
+    case IR_ALOAD: case IR_HLOAD: case IR_XLOAD: case IR_TBAR:
+      irt_setmark(IR(ir->op1)->t);  /* Mark ref for remaining loads. */
+      break;
+    case IR_FLOAD:
+      if (irt_ismarked(ir->t) || ir->op2 == IRFL_TAB_META)
+	irt_setmark(IR(ir->op1)->t);  /* Mark table for remaining loads. */
+      break;
+    case IR_ASTORE: case IR_HSTORE: case IR_FSTORE: case IR_XSTORE: {
+      IRIns *ira = sink_checkalloc(J, ir);
+      if (!ira || (irt_isphi(ira->t) && !sink_checkphi(J, ira, ir->op2)))
+	irt_setmark(IR(ir->op1)->t);  /* Mark ineligible ref. */
+      irt_setmark(IR(ir->op2)->t);  /* Mark stored value. */
+      break;
+      }
+#if LJ_HASFFI
+    case IR_CNEWI:
+      if (irt_isphi(ir->t) &&
+	  (!sink_checkphi(J, ir, ir->op2) ||
+	   (LJ_32 && ir+1 < irlast && (ir+1)->o == IR_HIOP &&
+	    !sink_checkphi(J, ir, (ir+1)->op2))))
+	irt_setmark(ir->t);  /* Mark ineligible allocation. */
+      /* fallthrough */
+#endif
+    case IR_USTORE:
+      irt_setmark(IR(ir->op2)->t);  /* Mark stored value. */
+      break;
+#if LJ_HASFFI
+    case IR_CALLXS:
+#endif
+    case IR_CALLS:
+      irt_setmark(IR(ir->op1)->t);  /* Mark (potentially) stored values. */
+      break;
+    case IR_PHI: {
+      IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+      irl->prev = irr->prev = 0;  /* Clear PHI value counts. */
+      if (irl->o == irr->o &&
+	  (irl->o == IR_TNEW || irl->o == IR_TDUP ||
+	   (LJ_HASFFI && (irl->o == IR_CNEW || irl->o == IR_CNEWI))))
+	break;
+      irt_setmark(irl->t);
+      irt_setmark(irr->t);
+      break;
+      }
+    default:
+      if (irt_ismarked(ir->t) || irt_isguard(ir->t)) {  /* Propagate mark. */
+	if (ir->op1 >= REF_FIRST) irt_setmark(IR(ir->op1)->t);
+	if (ir->op2 >= REF_FIRST) irt_setmark(IR(ir->op2)->t);
+      }
+      break;
+    }
+  }
+}
+
+/* Mark all instructions referenced by a snapshot. */
+static void sink_mark_snap(jit_State *J, SnapShot *snap)
+{
+  SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  for (n = 0; n < nent; n++) {
+    IRRef ref = snap_ref(map[n]);
+    if (!irref_isk(ref))
+      irt_setmark(IR(ref)->t);
+  }
+}
+
+/* Iteratively remark PHI refs with differing marks or PHI value counts. */
+static void sink_remark_phi(jit_State *J)
+{
+  IRIns *ir;
+  int remark;
+  do {
+    remark = 0;
+    for (ir = IR(J->cur.nins-1); ir->o == IR_PHI; ir--) {
+      IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+      if (((irl->t.irt ^ irr->t.irt) & IRT_MARK))
+	remark = 1;
+      else if (irl->prev == irr->prev)
+	continue;
+      irt_setmark(IR(ir->op1)->t);
+      irt_setmark(IR(ir->op2)->t);
+    }
+  } while (remark);
+}
+
+/* Sweep instructions and tag sunken allocations and stores. */
+static void sink_sweep_ins(jit_State *J)
+{
+  IRIns *ir, *irfirst = IR(J->cur.nk);
+  for (ir = IR(J->cur.nins-1) ; ir >= irfirst; ir--) {
+    switch (ir->o) {
+    case IR_ASTORE: case IR_HSTORE: case IR_FSTORE: case IR_XSTORE: {
+      IRIns *ira = sink_checkalloc(J, ir);
+      if (ira && !irt_ismarked(ira->t)) {
+	int delta = (int)(ir - ira);
+	ir->prev = REGSP(RID_SINK, delta > 255 ? 255 : delta);
+      } else {
+	ir->prev = REGSP_INIT;
+      }
+      break;
+      }
+    case IR_NEWREF:
+      if (!irt_ismarked(IR(ir->op1)->t)) {
+	ir->prev = REGSP(RID_SINK, 0);
+      } else {
+	irt_clearmark(ir->t);
+	ir->prev = REGSP_INIT;
+      }
+      break;
+#if LJ_HASFFI
+    case IR_CNEW: case IR_CNEWI:
+#endif
+    case IR_TNEW: case IR_TDUP:
+      if (!irt_ismarked(ir->t)) {
+	ir->t.irt &= ~IRT_GUARD;
+	ir->prev = REGSP(RID_SINK, 0);
+	J->cur.sinktags = 1;  /* Signal present SINK tags to assembler. */
+      } else {
+	irt_clearmark(ir->t);
+	ir->prev = REGSP_INIT;
+      }
+      break;
+    case IR_PHI: {
+      IRIns *ira = IR(ir->op2);
+      if (!irt_ismarked(ira->t) &&
+	  (ira->o == IR_TNEW || ira->o == IR_TDUP ||
+	   (LJ_HASFFI && (ira->o == IR_CNEW || ira->o == IR_CNEWI)))) {
+	ir->prev = REGSP(RID_SINK, 0);
+      } else {
+	ir->prev = REGSP_INIT;
+      }
+      break;
+      }
+    default:
+      irt_clearmark(ir->t);
+      ir->prev = REGSP_INIT;
+      break;
+    }
+  }
+}
+
+/* Allocation sinking and store sinking.
+**
+** 1. Mark all non-sinkable allocations.
+** 2. Then sink all remaining allocations and the related stores.
+*/
+void lj_opt_sink(jit_State *J)
+{
+  const uint32_t need = (JIT_F_OPT_SINK|JIT_F_OPT_FWD|
+			 JIT_F_OPT_DCE|JIT_F_OPT_CSE|JIT_F_OPT_FOLD);
+  if ((J->flags & need) == need &&
+      (J->chain[IR_TNEW] || J->chain[IR_TDUP] ||
+       (LJ_HASFFI && (J->chain[IR_CNEW] || J->chain[IR_CNEWI])))) {
+    if (!J->loopref)
+      sink_mark_snap(J, &J->cur.snap[J->cur.nsnap-1]);
+    sink_mark_ins(J);
+    if (J->loopref)
+      sink_remark_phi(J);
+    sink_sweep_ins(J);
+  }
+}
+
+#undef IR
+
+#endif
diff --git a/lib/luajit/src/lj_opt_split.c b/lib/luajit/src/lj_opt_split.c
new file mode 100644
index 00000000..99d10584
--- /dev/null
+++ b/lib/luajit/src/lj_opt_split.c
@@ -0,0 +1,731 @@
+/*
+** SPLIT: Split 64 bit IR instructions into 32 bit IR instructions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_split_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT && (LJ_SOFTFP || (LJ_32 && LJ_HASFFI))
+
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_vm.h"
+
+/* SPLIT pass:
+**
+** This pass splits up 64 bit IR instructions into multiple 32 bit IR
+** instructions. It's only active for soft-float targets or for 32 bit CPUs
+** which lack native 64 bit integer operations (the FFI is currently the
+** only emitter for 64 bit integer instructions).
+**
+** Splitting the IR in a separate pass keeps each 32 bit IR assembler
+** backend simple. Only a small amount of extra functionality needs to be
+** implemented. This is much easier than adding support for allocating
+** register pairs to each backend (believe me, I tried). A few simple, but
+** important optimizations can be performed by the SPLIT pass, which would
+** be tedious to do in the backend.
+**
+** The basic idea is to replace each 64 bit IR instruction with its 32 bit
+** equivalent plus an extra HIOP instruction. The splitted IR is not passed
+** through FOLD or any other optimizations, so each HIOP is guaranteed to
+** immediately follow it's counterpart. The actual functionality of HIOP is
+** inferred from the previous instruction.
+**
+** The operands of HIOP hold the hiword input references. The output of HIOP
+** is the hiword output reference, which is also used to hold the hiword
+** register or spill slot information. The register allocator treats this
+** instruction independently of any other instruction, which improves code
+** quality compared to using fixed register pairs.
+**
+** It's easier to split up some instructions into two regular 32 bit
+** instructions. E.g. XLOAD is split up into two XLOADs with two different
+** addresses. Obviously 64 bit constants need to be split up into two 32 bit
+** constants, too. Some hiword instructions can be entirely omitted, e.g.
+** when zero-extending a 32 bit value to 64 bits. 64 bit arguments for calls
+** are split up into two 32 bit arguments each.
+**
+** On soft-float targets, floating-point instructions are directly converted
+** to soft-float calls by the SPLIT pass (except for comparisons and MIN/MAX).
+** HIOP for number results has the type IRT_SOFTFP ("sfp" in -jdump).
+**
+** Here's the IR and x64 machine code for 'x.b = x.a + 1' for a struct with
+** two int64_t fields:
+**
+** 0100    p32 ADD    base  +8
+** 0101    i64 XLOAD  0100
+** 0102    i64 ADD    0101  +1
+** 0103    p32 ADD    base  +16
+** 0104    i64 XSTORE 0103  0102
+**
+**         mov rax, [esi+0x8]
+**         add rax, +0x01
+**         mov [esi+0x10], rax
+**
+** Here's the transformed IR and the x86 machine code after the SPLIT pass:
+**
+** 0100    p32 ADD    base  +8
+** 0101    int XLOAD  0100
+** 0102    p32 ADD    base  +12
+** 0103    int XLOAD  0102
+** 0104    int ADD    0101  +1
+** 0105    int HIOP   0103  +0
+** 0106    p32 ADD    base  +16
+** 0107    int XSTORE 0106  0104
+** 0108    int HIOP   0106  0105
+**
+**         mov eax, [esi+0x8]
+**         mov ecx, [esi+0xc]
+**         add eax, +0x01
+**         adc ecx, +0x00
+**         mov [esi+0x10], eax
+**         mov [esi+0x14], ecx
+**
+** You may notice the reassociated hiword address computation, which is
+** later fused into the mov operands by the assembler.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Directly emit the transformed IR without updating chains etc. */
+static IRRef split_emit(jit_State *J, uint16_t ot, IRRef1 op1, IRRef1 op2)
+{
+  IRRef nref = lj_ir_nextins(J);
+  IRIns *ir = IR(nref);
+  ir->ot = ot;
+  ir->op1 = op1;
+  ir->op2 = op2;
+  return nref;
+}
+
+#if LJ_SOFTFP
+/* Emit a (checked) number to integer conversion. */
+static IRRef split_num2int(jit_State *J, IRRef lo, IRRef hi, int check)
+{
+  IRRef tmp, res;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), lo, hi);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hi, lo);
+#endif
+  res = split_emit(J, IRTI(IR_CALLN), tmp, IRCALL_softfp_d2i);
+  if (check) {
+    tmp = split_emit(J, IRTI(IR_CALLN), res, IRCALL_softfp_i2d);
+    split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+    split_emit(J, IRTGI(IR_EQ), tmp, lo);
+    split_emit(J, IRTG(IR_HIOP, IRT_SOFTFP), tmp+1, hi);
+  }
+  return res;
+}
+
+/* Emit a CALLN with one split 64 bit argument. */
+static IRRef split_call_l(jit_State *J, IRRef1 *hisubst, IRIns *oir,
+			  IRIns *ir, IRCallID id)
+{
+  IRRef tmp, op1 = ir->op1;
+  J->cur.nins--;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+#endif
+  ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, id);
+  return split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+}
+
+/* Emit a CALLN with one split 64 bit argument and a 32 bit argument. */
+static IRRef split_call_li(jit_State *J, IRRef1 *hisubst, IRIns *oir,
+			   IRIns *ir, IRCallID id)
+{
+  IRRef tmp, op1 = ir->op1, op2 = ir->op2;
+  J->cur.nins--;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+#endif
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, oir[op2].prev);
+  ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, id);
+  return split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+}
+#endif
+
+/* Emit a CALLN with two split 64 bit arguments. */
+static IRRef split_call_ll(jit_State *J, IRRef1 *hisubst, IRIns *oir,
+			   IRIns *ir, IRCallID id)
+{
+  IRRef tmp, op1 = ir->op1, op2 = ir->op2;
+  J->cur.nins--;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, oir[op2].prev);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, hisubst[op2]);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, hisubst[op2]);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, oir[op2].prev);
+#endif
+  ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, id);
+  return split_emit(J,
+    IRT(IR_HIOP, (LJ_SOFTFP && irt_isnum(ir->t)) ? IRT_SOFTFP : IRT_INT),
+    tmp, tmp);
+}
+
+/* Get a pointer to the other 32 bit word (LE: hiword, BE: loword). */
+static IRRef split_ptr(jit_State *J, IRIns *oir, IRRef ref)
+{
+  IRRef nref = oir[ref].prev;
+  IRIns *ir = IR(nref);
+  int32_t ofs = 4;
+  if (ir->o == IR_KPTR)
+    return lj_ir_kptr(J, (char *)ir_kptr(ir) + ofs);
+  if (ir->o == IR_ADD && irref_isk(ir->op2) && !irt_isphi(oir[ref].t)) {
+    /* Reassociate address. */
+    ofs += IR(ir->op2)->i;
+    nref = ir->op1;
+    if (ofs == 0) return nref;
+  }
+  return split_emit(J, IRTI(IR_ADD), nref, lj_ir_kint(J, ofs));
+}
+
+/* Substitute references of a snapshot. */
+static void split_subst_snap(jit_State *J, SnapShot *snap, IRIns *oir)
+{
+  SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    IRIns *ir = &oir[snap_ref(sn)];
+    if (!(LJ_SOFTFP && (sn & SNAP_SOFTFPNUM) && irref_isk(snap_ref(sn))))
+      map[n] = ((sn & 0xffff0000) | ir->prev);
+  }
+}
+
+/* Transform the old IR to the new IR. */
+static void split_ir(jit_State *J)
+{
+  IRRef nins = J->cur.nins, nk = J->cur.nk;
+  MSize irlen = nins - nk;
+  MSize need = (irlen+1)*(sizeof(IRIns) + sizeof(IRRef1));
+  IRIns *oir = (IRIns *)lj_str_needbuf(J->L, &G(J->L)->tmpbuf, need);
+  IRRef1 *hisubst;
+  IRRef ref, snref;
+  SnapShot *snap;
+
+  /* Copy old IR to buffer. */
+  memcpy(oir, IR(nk), irlen*sizeof(IRIns));
+  /* Bias hiword substitution table and old IR. Loword kept in field prev. */
+  hisubst = (IRRef1 *)&oir[irlen] - nk;
+  oir -= nk;
+
+  /* Remove all IR instructions, but retain IR constants. */
+  J->cur.nins = REF_FIRST;
+  J->loopref = 0;
+
+  /* Process constants and fixed references. */
+  for (ref = nk; ref <= REF_BASE; ref++) {
+    IRIns *ir = &oir[ref];
+    if ((LJ_SOFTFP && ir->o == IR_KNUM) || ir->o == IR_KINT64) {
+      /* Split up 64 bit constant. */
+      TValue tv = *ir_k64(ir);
+      ir->prev = lj_ir_kint(J, (int32_t)tv.u32.lo);
+      hisubst[ref] = lj_ir_kint(J, (int32_t)tv.u32.hi);
+    } else {
+      ir->prev = ref;  /* Identity substitution for loword. */
+      hisubst[ref] = 0;
+    }
+  }
+
+  /* Process old IR instructions. */
+  snap = J->cur.snap;
+  snref = snap->ref;
+  for (ref = REF_FIRST; ref < nins; ref++) {
+    IRIns *ir = &oir[ref];
+    IRRef nref = lj_ir_nextins(J);
+    IRIns *nir = IR(nref);
+    IRRef hi = 0;
+
+    if (ref >= snref) {
+      snap->ref = nref;
+      split_subst_snap(J, snap++, oir);
+      snref = snap < &J->cur.snap[J->cur.nsnap] ? snap->ref : ~(IRRef)0;
+    }
+
+    /* Copy-substitute old instruction to new instruction. */
+    nir->op1 = ir->op1 < nk ? ir->op1 : oir[ir->op1].prev;
+    nir->op2 = ir->op2 < nk ? ir->op2 : oir[ir->op2].prev;
+    ir->prev = nref;  /* Loword substitution. */
+    nir->o = ir->o;
+    nir->t.irt = ir->t.irt & ~(IRT_MARK|IRT_ISPHI);
+    hisubst[ref] = 0;
+
+    /* Split 64 bit instructions. */
+#if LJ_SOFTFP
+    if (irt_isnum(ir->t)) {
+      nir->t.irt = IRT_INT | (nir->t.irt & IRT_GUARD);  /* Turn into INT op. */
+      /* Note: hi ref = lo ref + 1! Required for SNAP_SOFTFPNUM logic. */
+      switch (ir->o) {
+      case IR_ADD:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_add);
+	break;
+      case IR_SUB:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_sub);
+	break;
+      case IR_MUL:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_mul);
+	break;
+      case IR_DIV:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_div);
+	break;
+      case IR_POW:
+	hi = split_call_li(J, hisubst, oir, ir, IRCALL_lj_vm_powi);
+	break;
+      case IR_FPMATH:
+	/* Try to rejoin pow from EXP2, MUL and LOG2. */
+	if (nir->op2 == IRFPM_EXP2 && nir->op1 > J->loopref) {
+	  IRIns *irp = IR(nir->op1);
+	  if (irp->o == IR_CALLN && irp->op2 == IRCALL_softfp_mul) {
+	    IRIns *irm4 = IR(irp->op1);
+	    IRIns *irm3 = IR(irm4->op1);
+	    IRIns *irm12 = IR(irm3->op1);
+	    IRIns *irl1 = IR(irm12->op1);
+	    if (irm12->op1 > J->loopref && irl1->o == IR_CALLN &&
+		irl1->op2 == IRCALL_lj_vm_log2) {
+	      IRRef tmp = irl1->op1;  /* Recycle first two args from LOG2. */
+	      IRRef arg3 = irm3->op2, arg4 = irm4->op2;
+	      J->cur.nins--;
+	      tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, arg3);
+	      tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, arg4);
+	      ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, IRCALL_pow);
+	      hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+	      break;
+	    }
+	  }
+	}
+	hi = split_call_l(J, hisubst, oir, ir, IRCALL_lj_vm_floor + ir->op2);
+	break;
+      case IR_ATAN2:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_atan2);
+	break;
+      case IR_LDEXP:
+	hi = split_call_li(J, hisubst, oir, ir, IRCALL_ldexp);
+	break;
+      case IR_NEG: case IR_ABS:
+	nir->o = IR_CONV;  /* Pass through loword. */
+	nir->op2 = (IRT_INT << 5) | IRT_INT;
+	hi = split_emit(J, IRT(ir->o == IR_NEG ? IR_BXOR : IR_BAND, IRT_SOFTFP),
+			hisubst[ir->op1], hisubst[ir->op2]);
+	break;
+      case IR_SLOAD:
+	if ((nir->op2 & IRSLOAD_CONVERT)) {  /* Convert from int to number. */
+	  nir->op2 &= ~IRSLOAD_CONVERT;
+	  ir->prev = nref = split_emit(J, IRTI(IR_CALLN), nref,
+				       IRCALL_softfp_i2d);
+	  hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	  break;
+	}
+	/* fallthrough */
+      case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+      case IR_STRTO:
+	hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	break;
+      case IR_XLOAD: {
+	IRIns inslo = *nir;  /* Save/undo the emit of the lo XLOAD. */
+	J->cur.nins--;
+	hi = split_ptr(J, oir, ir->op1);  /* Insert the hiref ADD. */
+	nref = lj_ir_nextins(J);
+	nir = IR(nref);
+	*nir = inslo;  /* Re-emit lo XLOAD immediately before hi XLOAD. */
+	hi = split_emit(J, IRT(IR_XLOAD, IRT_SOFTFP), hi, ir->op2);
+#if LJ_LE
+	ir->prev = nref;
+#else
+	ir->prev = hi; hi = nref;
+#endif
+	break;
+	}
+      case IR_ASTORE: case IR_HSTORE: case IR_USTORE: case IR_XSTORE:
+	split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nir->op1, hisubst[ir->op2]);
+	break;
+      case IR_CONV: {  /* Conversion to number. Others handled below. */
+	IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+	UNUSED(st);
+#if LJ_32 && LJ_HASFFI
+	if (st == IRT_I64 || st == IRT_U64) {
+	  hi = split_call_l(J, hisubst, oir, ir,
+		 st == IRT_I64 ? IRCALL_fp64_l2d : IRCALL_fp64_ul2d);
+	  break;
+	}
+#endif
+	lua_assert(st == IRT_INT ||
+		   (LJ_32 && LJ_HASFFI && (st == IRT_U32 || st == IRT_FLOAT)));
+	nir->o = IR_CALLN;
+#if LJ_32 && LJ_HASFFI
+	nir->op2 = st == IRT_INT ? IRCALL_softfp_i2d :
+		   st == IRT_FLOAT ? IRCALL_softfp_f2d :
+		   IRCALL_softfp_ui2d;
+#else
+	nir->op2 = IRCALL_softfp_i2d;
+#endif
+	hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	break;
+	}
+      case IR_CALLN:
+      case IR_CALLL:
+      case IR_CALLS:
+      case IR_CALLXS:
+	goto split_call;
+      case IR_PHI:
+	if (nir->op1 == nir->op2)
+	  J->cur.nins--;  /* Drop useless PHIs. */
+	if (hisubst[ir->op1] != hisubst[ir->op2])
+	  split_emit(J, IRT(IR_PHI, IRT_SOFTFP),
+		     hisubst[ir->op1], hisubst[ir->op2]);
+	break;
+      case IR_HIOP:
+	J->cur.nins--;  /* Drop joining HIOP. */
+	ir->prev = nir->op1;
+	hi = nir->op2;
+	break;
+      default:
+	lua_assert(ir->o <= IR_NE || ir->o == IR_MIN || ir->o == IR_MAX);
+	hi = split_emit(J, IRTG(IR_HIOP, IRT_SOFTFP),
+			hisubst[ir->op1], hisubst[ir->op2]);
+	break;
+      }
+    } else
+#endif
+#if LJ_32 && LJ_HASFFI
+    if (irt_isint64(ir->t)) {
+      IRRef hiref = hisubst[ir->op1];
+      nir->t.irt = IRT_INT | (nir->t.irt & IRT_GUARD);  /* Turn into INT op. */
+      switch (ir->o) {
+      case IR_ADD:
+      case IR_SUB:
+	/* Use plain op for hiword if loword cannot produce a carry/borrow. */
+	if (irref_isk(nir->op2) && IR(nir->op2)->i == 0) {
+	  ir->prev = nir->op1;  /* Pass through loword. */
+	  nir->op1 = hiref; nir->op2 = hisubst[ir->op2];
+	  hi = nref;
+	  break;
+	}
+	/* fallthrough */
+      case IR_NEG:
+	hi = split_emit(J, IRTI(IR_HIOP), hiref, hisubst[ir->op2]);
+	break;
+      case IR_MUL:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_lj_carith_mul64);
+	break;
+      case IR_DIV:
+	hi = split_call_ll(J, hisubst, oir, ir,
+			   irt_isi64(ir->t) ? IRCALL_lj_carith_divi64 :
+					      IRCALL_lj_carith_divu64);
+	break;
+      case IR_MOD:
+	hi = split_call_ll(J, hisubst, oir, ir,
+			   irt_isi64(ir->t) ? IRCALL_lj_carith_modi64 :
+					      IRCALL_lj_carith_modu64);
+	break;
+      case IR_POW:
+	hi = split_call_ll(J, hisubst, oir, ir,
+			   irt_isi64(ir->t) ? IRCALL_lj_carith_powi64 :
+					      IRCALL_lj_carith_powu64);
+	break;
+      case IR_FLOAD:
+	lua_assert(ir->op2 == IRFL_CDATA_INT64);
+	hi = split_emit(J, IRTI(IR_FLOAD), nir->op1, IRFL_CDATA_INT64_4);
+#if LJ_BE
+	ir->prev = hi; hi = nref;
+#endif
+	break;
+      case IR_XLOAD:
+	hi = split_emit(J, IRTI(IR_XLOAD), split_ptr(J, oir, ir->op1), ir->op2);
+#if LJ_BE
+	ir->prev = hi; hi = nref;
+#endif
+	break;
+      case IR_XSTORE:
+	split_emit(J, IRTI(IR_HIOP), nir->op1, hisubst[ir->op2]);
+	break;
+      case IR_CONV: {  /* Conversion to 64 bit integer. Others handled below. */
+	IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if LJ_SOFTFP
+	if (st == IRT_NUM) {  /* NUM to 64 bit int conv. */
+	  hi = split_call_l(J, hisubst, oir, ir,
+		 irt_isi64(ir->t) ? IRCALL_fp64_d2l : IRCALL_fp64_d2ul);
+	} else if (st == IRT_FLOAT) {  /* FLOAT to 64 bit int conv. */
+	  nir->o = IR_CALLN;
+	  nir->op2 = irt_isi64(ir->t) ? IRCALL_fp64_f2l : IRCALL_fp64_f2ul;
+	  hi = split_emit(J, IRTI(IR_HIOP), nref, nref);
+	}
+#else
+	if (st == IRT_NUM || st == IRT_FLOAT) {  /* FP to 64 bit int conv. */
+	  hi = split_emit(J, IRTI(IR_HIOP), nir->op1, nref);
+	}
+#endif
+	else if (st == IRT_I64 || st == IRT_U64) {  /* 64/64 bit cast. */
+	  /* Drop cast, since assembler doesn't care. */
+	  goto fwdlo;
+	} else if ((ir->op2 & IRCONV_SEXT)) {  /* Sign-extend to 64 bit. */
+	  IRRef k31 = lj_ir_kint(J, 31);
+	  nir = IR(nref);  /* May have been reallocated. */
+	  ir->prev = nir->op1;  /* Pass through loword. */
+	  nir->o = IR_BSAR;  /* hi = bsar(lo, 31). */
+	  nir->op2 = k31;
+	  hi = nref;
+	} else {  /* Zero-extend to 64 bit. */
+	  hi = lj_ir_kint(J, 0);
+	  goto fwdlo;
+	}
+	break;
+	}
+      case IR_CALLXS:
+	goto split_call;
+      case IR_PHI: {
+	IRRef hiref2;
+	if ((irref_isk(nir->op1) && irref_isk(nir->op2)) ||
+	    nir->op1 == nir->op2)
+	  J->cur.nins--;  /* Drop useless PHIs. */
+	hiref2 = hisubst[ir->op2];
+	if (!((irref_isk(hiref) && irref_isk(hiref2)) || hiref == hiref2))
+	  split_emit(J, IRTI(IR_PHI), hiref, hiref2);
+	break;
+	}
+      case IR_HIOP:
+	J->cur.nins--;  /* Drop joining HIOP. */
+	ir->prev = nir->op1;
+	hi = nir->op2;
+	break;
+      default:
+	lua_assert(ir->o <= IR_NE);  /* Comparisons. */
+	split_emit(J, IRTGI(IR_HIOP), hiref, hisubst[ir->op2]);
+	break;
+      }
+    } else
+#endif
+#if LJ_SOFTFP
+    if (ir->o == IR_SLOAD) {
+      if ((nir->op2 & IRSLOAD_CONVERT)) {  /* Convert from number to int. */
+	nir->op2 &= ~IRSLOAD_CONVERT;
+	if (!(nir->op2 & IRSLOAD_TYPECHECK))
+	  nir->t.irt = IRT_INT;  /* Drop guard. */
+	split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	ir->prev = split_num2int(J, nref, nref+1, irt_isguard(ir->t));
+      }
+    } else if (ir->o == IR_TOBIT) {
+      IRRef tmp, op1 = ir->op1;
+      J->cur.nins--;
+#if LJ_LE
+      tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+#else
+      tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+#endif
+      ir->prev = split_emit(J, IRTI(IR_CALLN), tmp, IRCALL_lj_vm_tobit);
+    } else if (ir->o == IR_TOSTR) {
+      if (hisubst[ir->op1]) {
+	if (irref_isk(ir->op1))
+	  nir->op1 = ir->op1;
+	else
+	  split_emit(J, IRT(IR_HIOP, IRT_NIL), hisubst[ir->op1], nref);
+      }
+    } else if (ir->o == IR_HREF || ir->o == IR_NEWREF) {
+      if (irref_isk(ir->op2) && hisubst[ir->op2])
+	nir->op2 = ir->op2;
+    } else
+#endif
+    if (ir->o == IR_CONV) {  /* See above, too. */
+      IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if LJ_32 && LJ_HASFFI
+      if (st == IRT_I64 || st == IRT_U64) {  /* Conversion from 64 bit int. */
+#if LJ_SOFTFP
+	if (irt_isfloat(ir->t)) {
+	  split_call_l(J, hisubst, oir, ir,
+		       st == IRT_I64 ? IRCALL_fp64_l2f : IRCALL_fp64_ul2f);
+	  J->cur.nins--;  /* Drop unused HIOP. */
+	}
+#else
+	if (irt_isfp(ir->t)) {  /* 64 bit integer to FP conversion. */
+	  ir->prev = split_emit(J, IRT(IR_HIOP, irt_type(ir->t)),
+				hisubst[ir->op1], nref);
+	}
+#endif
+	else {  /* Truncate to lower 32 bits. */
+	fwdlo:
+	  ir->prev = nir->op1;  /* Forward loword. */
+	  /* Replace with NOP to avoid messing up the snapshot logic. */
+	  nir->ot = IRT(IR_NOP, IRT_NIL);
+	  nir->op1 = nir->op2 = 0;
+	}
+      }
+#endif
+#if LJ_SOFTFP && LJ_32 && LJ_HASFFI
+      else if (irt_isfloat(ir->t)) {
+	if (st == IRT_NUM) {
+	  split_call_l(J, hisubst, oir, ir, IRCALL_softfp_d2f);
+	  J->cur.nins--;  /* Drop unused HIOP. */
+	} else {
+	  nir->o = IR_CALLN;
+	  nir->op2 = st == IRT_INT ? IRCALL_softfp_i2f : IRCALL_softfp_ui2f;
+	}
+      } else if (st == IRT_FLOAT) {
+	nir->o = IR_CALLN;
+	nir->op2 = irt_isint(ir->t) ? IRCALL_softfp_f2i : IRCALL_softfp_f2ui;
+      } else
+#endif
+#if LJ_SOFTFP
+      if (st == IRT_NUM || (LJ_32 && LJ_HASFFI && st == IRT_FLOAT)) {
+	if (irt_isguard(ir->t)) {
+	  lua_assert(st == IRT_NUM && irt_isint(ir->t));
+	  J->cur.nins--;
+	  ir->prev = split_num2int(J, nir->op1, hisubst[ir->op1], 1);
+	} else {
+	  split_call_l(J, hisubst, oir, ir,
+#if LJ_32 && LJ_HASFFI
+	    st == IRT_NUM ?
+	      (irt_isint(ir->t) ? IRCALL_softfp_d2i : IRCALL_softfp_d2ui) :
+	      (irt_isint(ir->t) ? IRCALL_softfp_f2i : IRCALL_softfp_f2ui)
+#else
+	    IRCALL_softfp_d2i
+#endif
+	  );
+	  J->cur.nins--;  /* Drop unused HIOP. */
+	}
+      }
+#endif
+    } else if (ir->o == IR_CALLXS) {
+      IRRef hiref;
+    split_call:
+      hiref = hisubst[ir->op1];
+      if (hiref) {
+	IROpT ot = nir->ot;
+	IRRef op2 = nir->op2;
+	nir->ot = IRT(IR_CARG, IRT_NIL);
+#if LJ_LE
+	nir->op2 = hiref;
+#else
+	nir->op2 = nir->op1; nir->op1 = hiref;
+#endif
+	ir->prev = nref = split_emit(J, ot, nref, op2);
+      }
+      if (LJ_SOFTFP ? irt_is64(ir->t) : irt_isint64(ir->t))
+	hi = split_emit(J,
+	  IRT(IR_HIOP, (LJ_SOFTFP && irt_isnum(ir->t)) ? IRT_SOFTFP : IRT_INT),
+	  nref, nref);
+    } else if (ir->o == IR_CARG) {
+      IRRef hiref = hisubst[ir->op1];
+      if (hiref) {
+	IRRef op2 = nir->op2;
+#if LJ_LE
+	nir->op2 = hiref;
+#else
+	nir->op2 = nir->op1; nir->op1 = hiref;
+#endif
+	ir->prev = nref = split_emit(J, IRT(IR_CARG, IRT_NIL), nref, op2);
+	nir = IR(nref);
+      }
+      hiref = hisubst[ir->op2];
+      if (hiref) {
+#if !LJ_TARGET_X86
+	int carg = 0;
+	IRIns *cir;
+	for (cir = IR(nir->op1); cir->o == IR_CARG; cir = IR(cir->op1))
+	  carg++;
+	if ((carg & 1) == 0) {  /* Align 64 bit arguments. */
+	  IRRef op2 = nir->op2;
+	  nir->op2 = REF_NIL;
+	  nref = split_emit(J, IRT(IR_CARG, IRT_NIL), nref, op2);
+	  nir = IR(nref);
+	}
+#endif
+#if LJ_BE
+	{ IRRef tmp = nir->op2; nir->op2 = hiref; hiref = tmp; }
+#endif
+	ir->prev = split_emit(J, IRT(IR_CARG, IRT_NIL), nref, hiref);
+      }
+    } else if (ir->o == IR_CNEWI) {
+      if (hisubst[ir->op2])
+	split_emit(J, IRT(IR_HIOP, IRT_NIL), nref, hisubst[ir->op2]);
+    } else if (ir->o == IR_LOOP) {
+      J->loopref = nref;  /* Needed by assembler. */
+    }
+    hisubst[ref] = hi;  /* Store hiword substitution. */
+  }
+  if (snref == nins) {  /* Substitution for last snapshot. */
+    snap->ref = J->cur.nins;
+    split_subst_snap(J, snap, oir);
+  }
+
+  /* Add PHI marks. */
+  for (ref = J->cur.nins-1; ref >= REF_FIRST; ref--) {
+    IRIns *ir = IR(ref);
+    if (ir->o != IR_PHI) break;
+    if (!irref_isk(ir->op1)) irt_setphi(IR(ir->op1)->t);
+    if (ir->op2 > J->loopref) irt_setphi(IR(ir->op2)->t);
+  }
+}
+
+/* Protected callback for split pass. */
+static TValue *cpsplit(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  split_ir(J);
+  UNUSED(L); UNUSED(dummy);
+  return NULL;
+}
+
+#if defined(LUA_USE_ASSERT) || LJ_SOFTFP
+/* Slow, but sure way to check whether a SPLIT pass is needed. */
+static int split_needsplit(jit_State *J)
+{
+  IRIns *ir, *irend;
+  IRRef ref;
+  for (ir = IR(REF_FIRST), irend = IR(J->cur.nins); ir < irend; ir++)
+    if (LJ_SOFTFP ? irt_is64orfp(ir->t) : irt_isint64(ir->t))
+      return 1;
+  if (LJ_SOFTFP) {
+    for (ref = J->chain[IR_SLOAD]; ref; ref = IR(ref)->prev)
+      if ((IR(ref)->op2 & IRSLOAD_CONVERT))
+	return 1;
+    if (J->chain[IR_TOBIT])
+      return 1;
+  }
+  for (ref = J->chain[IR_CONV]; ref; ref = IR(ref)->prev) {
+    IRType st = (IR(ref)->op2 & IRCONV_SRCMASK);
+    if ((LJ_SOFTFP && (st == IRT_NUM || st == IRT_FLOAT)) ||
+	st == IRT_I64 || st == IRT_U64)
+      return 1;
+  }
+  return 0;  /* Nope. */
+}
+#endif
+
+/* SPLIT pass. */
+void lj_opt_split(jit_State *J)
+{
+#if LJ_SOFTFP
+  if (!J->needsplit)
+    J->needsplit = split_needsplit(J);
+#else
+  lua_assert(J->needsplit >= split_needsplit(J));  /* Verify flag. */
+#endif
+  if (J->needsplit) {
+    int errcode = lj_vm_cpcall(J->L, NULL, J, cpsplit);
+    if (errcode) {
+      /* Completely reset the trace to avoid inconsistent dump on abort. */
+      J->cur.nins = J->cur.nk = REF_BASE;
+      J->cur.nsnap = 0;
+      lj_err_throw(J->L, errcode);  /* Propagate errors. */
+    }
+  }
+}
+
+#undef IR
+
+#endif
diff --git a/lib/luajit/src/lj_parse.c b/lib/luajit/src/lj_parse.c
new file mode 100644
index 00000000..e8aafba2
--- /dev/null
+++ b/lib/luajit/src/lj_parse.c
@@ -0,0 +1,2752 @@
+/*
+** Lua parser (source code -> bytecode).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_parse_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_lex.h"
+#include "lj_parse.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+
+/* -- Parser structures and definitions ----------------------------------- */
+
+/* Expression kinds. */
+typedef enum {
+  /* Constant expressions must be first and in this order: */
+  VKNIL,
+  VKFALSE,
+  VKTRUE,
+  VKSTR,	/* sval = string value */
+  VKNUM,	/* nval = number value */
+  VKLAST = VKNUM,
+  VKCDATA,	/* nval = cdata value, not treated as a constant expression */
+  /* Non-constant expressions follow: */
+  VLOCAL,	/* info = local register, aux = vstack index */
+  VUPVAL,	/* info = upvalue index, aux = vstack index */
+  VGLOBAL,	/* sval = string value */
+  VINDEXED,	/* info = table register, aux = index reg/byte/string const */
+  VJMP,		/* info = instruction PC */
+  VRELOCABLE,	/* info = instruction PC */
+  VNONRELOC,	/* info = result register */
+  VCALL,	/* info = instruction PC, aux = base */
+  VVOID
+} ExpKind;
+
+/* Expression descriptor. */
+typedef struct ExpDesc {
+  union {
+    struct {
+      uint32_t info;	/* Primary info. */
+      uint32_t aux;	/* Secondary info. */
+    } s;
+    TValue nval;	/* Number value. */
+    GCstr *sval;	/* String value. */
+  } u;
+  ExpKind k;
+  BCPos t;		/* True condition jump list. */
+  BCPos f;		/* False condition jump list. */
+} ExpDesc;
+
+/* Macros for expressions. */
+#define expr_hasjump(e)		((e)->t != (e)->f)
+
+#define expr_isk(e)		((e)->k <= VKLAST)
+#define expr_isk_nojump(e)	(expr_isk(e) && !expr_hasjump(e))
+#define expr_isnumk(e)		((e)->k == VKNUM)
+#define expr_isnumk_nojump(e)	(expr_isnumk(e) && !expr_hasjump(e))
+#define expr_isstrk(e)		((e)->k == VKSTR)
+
+#define expr_numtv(e)		check_exp(expr_isnumk((e)), &(e)->u.nval)
+#define expr_numberV(e)		numberVnum(expr_numtv((e)))
+
+/* Initialize expression. */
+static LJ_AINLINE void expr_init(ExpDesc *e, ExpKind k, uint32_t info)
+{
+  e->k = k;
+  e->u.s.info = info;
+  e->f = e->t = NO_JMP;
+}
+
+/* Check number constant for +-0. */
+static int expr_numiszero(ExpDesc *e)
+{
+  TValue *o = expr_numtv(e);
+  return tvisint(o) ? (intV(o) == 0) : tviszero(o);
+}
+
+/* Per-function linked list of scope blocks. */
+typedef struct FuncScope {
+  struct FuncScope *prev;	/* Link to outer scope. */
+  MSize vstart;			/* Start of block-local variables. */
+  uint8_t nactvar;		/* Number of active vars outside the scope. */
+  uint8_t flags;		/* Scope flags. */
+} FuncScope;
+
+#define FSCOPE_LOOP		0x01	/* Scope is a (breakable) loop. */
+#define FSCOPE_BREAK		0x02	/* Break used in scope. */
+#define FSCOPE_GOLA		0x04	/* Goto or label used in scope. */
+#define FSCOPE_UPVAL		0x08	/* Upvalue in scope. */
+#define FSCOPE_NOCLOSE		0x10	/* Do not close upvalues. */
+
+#define NAME_BREAK		((GCstr *)(uintptr_t)1)
+
+/* Index into variable stack. */
+typedef uint16_t VarIndex;
+#define LJ_MAX_VSTACK		(65536 - LJ_MAX_UPVAL)
+
+/* Variable/goto/label info. */
+#define VSTACK_VAR_RW		0x01	/* R/W variable. */
+#define VSTACK_GOTO		0x02	/* Pending goto. */
+#define VSTACK_LABEL		0x04	/* Label. */
+
+/* Per-function state. */
+typedef struct FuncState {
+  GCtab *kt;			/* Hash table for constants. */
+  LexState *ls;			/* Lexer state. */
+  lua_State *L;			/* Lua state. */
+  FuncScope *bl;		/* Current scope. */
+  struct FuncState *prev;	/* Enclosing function. */
+  BCPos pc;			/* Next bytecode position. */
+  BCPos lasttarget;		/* Bytecode position of last jump target. */
+  BCPos jpc;			/* Pending jump list to next bytecode. */
+  BCReg freereg;		/* First free register. */
+  BCReg nactvar;		/* Number of active local variables. */
+  BCReg nkn, nkgc;		/* Number of lua_Number/GCobj constants */
+  BCLine linedefined;		/* First line of the function definition. */
+  BCInsLine *bcbase;		/* Base of bytecode stack. */
+  BCPos bclim;			/* Limit of bytecode stack. */
+  MSize vbase;			/* Base of variable stack for this function. */
+  uint8_t flags;		/* Prototype flags. */
+  uint8_t numparams;		/* Number of parameters. */
+  uint8_t framesize;		/* Fixed frame size. */
+  uint8_t nuv;			/* Number of upvalues */
+  VarIndex varmap[LJ_MAX_LOCVAR];  /* Map from register to variable idx. */
+  VarIndex uvmap[LJ_MAX_UPVAL];	/* Map from upvalue to variable idx. */
+  VarIndex uvtmp[LJ_MAX_UPVAL];	/* Temporary upvalue map. */
+} FuncState;
+
+/* Binary and unary operators. ORDER OPR */
+typedef enum BinOpr {
+  OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,  /* ORDER ARITH */
+  OPR_CONCAT,
+  OPR_NE, OPR_EQ,
+  OPR_LT, OPR_GE, OPR_LE, OPR_GT,
+  OPR_AND, OPR_OR,
+  OPR_NOBINOPR
+} BinOpr;
+
+LJ_STATIC_ASSERT((int)BC_ISGE-(int)BC_ISLT == (int)OPR_GE-(int)OPR_LT);
+LJ_STATIC_ASSERT((int)BC_ISLE-(int)BC_ISLT == (int)OPR_LE-(int)OPR_LT);
+LJ_STATIC_ASSERT((int)BC_ISGT-(int)BC_ISLT == (int)OPR_GT-(int)OPR_LT);
+LJ_STATIC_ASSERT((int)BC_SUBVV-(int)BC_ADDVV == (int)OPR_SUB-(int)OPR_ADD);
+LJ_STATIC_ASSERT((int)BC_MULVV-(int)BC_ADDVV == (int)OPR_MUL-(int)OPR_ADD);
+LJ_STATIC_ASSERT((int)BC_DIVVV-(int)BC_ADDVV == (int)OPR_DIV-(int)OPR_ADD);
+LJ_STATIC_ASSERT((int)BC_MODVV-(int)BC_ADDVV == (int)OPR_MOD-(int)OPR_ADD);
+
+/* -- Error handling ------------------------------------------------------ */
+
+LJ_NORET LJ_NOINLINE static void err_syntax(LexState *ls, ErrMsg em)
+{
+  lj_lex_error(ls, ls->token, em);
+}
+
+LJ_NORET LJ_NOINLINE static void err_token(LexState *ls, LexToken token)
+{
+  lj_lex_error(ls, ls->token, LJ_ERR_XTOKEN, lj_lex_token2str(ls, token));
+}
+
+LJ_NORET static void err_limit(FuncState *fs, uint32_t limit, const char *what)
+{
+  if (fs->linedefined == 0)
+    lj_lex_error(fs->ls, 0, LJ_ERR_XLIMM, limit, what);
+  else
+    lj_lex_error(fs->ls, 0, LJ_ERR_XLIMF, fs->linedefined, limit, what);
+}
+
+#define checklimit(fs, v, l, m)		if ((v) >= (l)) err_limit(fs, l, m)
+#define checklimitgt(fs, v, l, m)	if ((v) > (l)) err_limit(fs, l, m)
+#define checkcond(ls, c, em)		{ if (!(c)) err_syntax(ls, em); }
+
+/* -- Management of constants --------------------------------------------- */
+
+/* Return bytecode encoding for primitive constant. */
+#define const_pri(e)		check_exp((e)->k <= VKTRUE, (e)->k)
+
+#define tvhaskslot(o)	((o)->u32.hi == 0)
+#define tvkslot(o)	((o)->u32.lo)
+
+/* Add a number constant. */
+static BCReg const_num(FuncState *fs, ExpDesc *e)
+{
+  lua_State *L = fs->L;
+  TValue *o;
+  lua_assert(expr_isnumk(e));
+  o = lj_tab_set(L, fs->kt, &e->u.nval);
+  if (tvhaskslot(o))
+    return tvkslot(o);
+  o->u64 = fs->nkn;
+  return fs->nkn++;
+}
+
+/* Add a GC object constant. */
+static BCReg const_gc(FuncState *fs, GCobj *gc, uint32_t itype)
+{
+  lua_State *L = fs->L;
+  TValue key, *o;
+  setgcV(L, &key, gc, itype);
+  /* NOBARRIER: the key is new or kept alive. */
+  o = lj_tab_set(L, fs->kt, &key);
+  if (tvhaskslot(o))
+    return tvkslot(o);
+  o->u64 = fs->nkgc;
+  return fs->nkgc++;
+}
+
+/* Add a string constant. */
+static BCReg const_str(FuncState *fs, ExpDesc *e)
+{
+  lua_assert(expr_isstrk(e) || e->k == VGLOBAL);
+  return const_gc(fs, obj2gco(e->u.sval), LJ_TSTR);
+}
+
+/* Anchor string constant to avoid GC. */
+GCstr *lj_parse_keepstr(LexState *ls, const char *str, size_t len)
+{
+  /* NOBARRIER: the key is new or kept alive. */
+  lua_State *L = ls->L;
+  GCstr *s = lj_str_new(L, str, len);
+  TValue *tv = lj_tab_setstr(L, ls->fs->kt, s);
+  if (tvisnil(tv)) setboolV(tv, 1);
+  lj_gc_check(L);
+  return s;
+}
+
+#if LJ_HASFFI
+/* Anchor cdata to avoid GC. */
+void lj_parse_keepcdata(LexState *ls, TValue *tv, GCcdata *cd)
+{
+  /* NOBARRIER: the key is new or kept alive. */
+  lua_State *L = ls->L;
+  setcdataV(L, tv, cd);
+  setboolV(lj_tab_set(L, ls->fs->kt, tv), 1);
+}
+#endif
+
+/* -- Jump list handling -------------------------------------------------- */
+
+/* Get next element in jump list. */
+static BCPos jmp_next(FuncState *fs, BCPos pc)
+{
+  ptrdiff_t delta = bc_j(fs->bcbase[pc].ins);
+  if ((BCPos)delta == NO_JMP)
+    return NO_JMP;
+  else
+    return (BCPos)(((ptrdiff_t)pc+1)+delta);
+}
+
+/* Check if any of the instructions on the jump list produce no value. */
+static int jmp_novalue(FuncState *fs, BCPos list)
+{
+  for (; list != NO_JMP; list = jmp_next(fs, list)) {
+    BCIns p = fs->bcbase[list >= 1 ? list-1 : list].ins;
+    if (!(bc_op(p) == BC_ISTC || bc_op(p) == BC_ISFC || bc_a(p) == NO_REG))
+      return 1;
+  }
+  return 0;
+}
+
+/* Patch register of test instructions. */
+static int jmp_patchtestreg(FuncState *fs, BCPos pc, BCReg reg)
+{
+  BCInsLine *ilp = &fs->bcbase[pc >= 1 ? pc-1 : pc];
+  BCOp op = bc_op(ilp->ins);
+  if (op == BC_ISTC || op == BC_ISFC) {
+    if (reg != NO_REG && reg != bc_d(ilp->ins)) {
+      setbc_a(&ilp->ins, reg);
+    } else {  /* Nothing to store or already in the right register. */
+      setbc_op(&ilp->ins, op+(BC_IST-BC_ISTC));
+      setbc_a(&ilp->ins, 0);
+    }
+  } else if (bc_a(ilp->ins) == NO_REG) {
+    if (reg == NO_REG) {
+      ilp->ins = BCINS_AJ(BC_JMP, bc_a(fs->bcbase[pc].ins), 0);
+    } else {
+      setbc_a(&ilp->ins, reg);
+      if (reg >= bc_a(ilp[1].ins))
+	setbc_a(&ilp[1].ins, reg+1);
+    }
+  } else {
+    return 0;  /* Cannot patch other instructions. */
+  }
+  return 1;
+}
+
+/* Drop values for all instructions on jump list. */
+static void jmp_dropval(FuncState *fs, BCPos list)
+{
+  for (; list != NO_JMP; list = jmp_next(fs, list))
+    jmp_patchtestreg(fs, list, NO_REG);
+}
+
+/* Patch jump instruction to target. */
+static void jmp_patchins(FuncState *fs, BCPos pc, BCPos dest)
+{
+  BCIns *jmp = &fs->bcbase[pc].ins;
+  BCPos offset = dest-(pc+1)+BCBIAS_J;
+  lua_assert(dest != NO_JMP);
+  if (offset > BCMAX_D)
+    err_syntax(fs->ls, LJ_ERR_XJUMP);
+  setbc_d(jmp, offset);
+}
+
+/* Append to jump list. */
+static void jmp_append(FuncState *fs, BCPos *l1, BCPos l2)
+{
+  if (l2 == NO_JMP) {
+    return;
+  } else if (*l1 == NO_JMP) {
+    *l1 = l2;
+  } else {
+    BCPos list = *l1;
+    BCPos next;
+    while ((next = jmp_next(fs, list)) != NO_JMP)  /* Find last element. */
+      list = next;
+    jmp_patchins(fs, list, l2);
+  }
+}
+
+/* Patch jump list and preserve produced values. */
+static void jmp_patchval(FuncState *fs, BCPos list, BCPos vtarget,
+			 BCReg reg, BCPos dtarget)
+{
+  while (list != NO_JMP) {
+    BCPos next = jmp_next(fs, list);
+    if (jmp_patchtestreg(fs, list, reg))
+      jmp_patchins(fs, list, vtarget);  /* Jump to target with value. */
+    else
+      jmp_patchins(fs, list, dtarget);  /* Jump to default target. */
+    list = next;
+  }
+}
+
+/* Jump to following instruction. Append to list of pending jumps. */
+static void jmp_tohere(FuncState *fs, BCPos list)
+{
+  fs->lasttarget = fs->pc;
+  jmp_append(fs, &fs->jpc, list);
+}
+
+/* Patch jump list to target. */
+static void jmp_patch(FuncState *fs, BCPos list, BCPos target)
+{
+  if (target == fs->pc) {
+    jmp_tohere(fs, list);
+  } else {
+    lua_assert(target < fs->pc);
+    jmp_patchval(fs, list, target, NO_REG, target);
+  }
+}
+
+/* -- Bytecode register allocator ----------------------------------------- */
+
+/* Bump frame size. */
+static void bcreg_bump(FuncState *fs, BCReg n)
+{
+  BCReg sz = fs->freereg + n;
+  if (sz > fs->framesize) {
+    if (sz >= LJ_MAX_SLOTS)
+      err_syntax(fs->ls, LJ_ERR_XSLOTS);
+    fs->framesize = (uint8_t)sz;
+  }
+}
+
+/* Reserve registers. */
+static void bcreg_reserve(FuncState *fs, BCReg n)
+{
+  bcreg_bump(fs, n);
+  fs->freereg += n;
+}
+
+/* Free register. */
+static void bcreg_free(FuncState *fs, BCReg reg)
+{
+  if (reg >= fs->nactvar) {
+    fs->freereg--;
+    lua_assert(reg == fs->freereg);
+  }
+}
+
+/* Free register for expression. */
+static void expr_free(FuncState *fs, ExpDesc *e)
+{
+  if (e->k == VNONRELOC)
+    bcreg_free(fs, e->u.s.info);
+}
+
+/* -- Bytecode emitter ---------------------------------------------------- */
+
+/* Emit bytecode instruction. */
+static BCPos bcemit_INS(FuncState *fs, BCIns ins)
+{
+  BCPos pc = fs->pc;
+  LexState *ls = fs->ls;
+  jmp_patchval(fs, fs->jpc, pc, NO_REG, pc);
+  fs->jpc = NO_JMP;
+  if (LJ_UNLIKELY(pc >= fs->bclim)) {
+    ptrdiff_t base = fs->bcbase - ls->bcstack;
+    checklimit(fs, ls->sizebcstack, LJ_MAX_BCINS, "bytecode instructions");
+    lj_mem_growvec(fs->L, ls->bcstack, ls->sizebcstack, LJ_MAX_BCINS,BCInsLine);
+    fs->bclim = (BCPos)(ls->sizebcstack - base);
+    fs->bcbase = ls->bcstack + base;
+  }
+  fs->bcbase[pc].ins = ins;
+  fs->bcbase[pc].line = ls->lastline;
+  fs->pc = pc+1;
+  return pc;
+}
+
+#define bcemit_ABC(fs, o, a, b, c)	bcemit_INS(fs, BCINS_ABC(o, a, b, c))
+#define bcemit_AD(fs, o, a, d)		bcemit_INS(fs, BCINS_AD(o, a, d))
+#define bcemit_AJ(fs, o, a, j)		bcemit_INS(fs, BCINS_AJ(o, a, j))
+
+#define bcptr(fs, e)			(&(fs)->bcbase[(e)->u.s.info].ins)
+
+/* -- Bytecode emitter for expressions ------------------------------------ */
+
+/* Discharge non-constant expression to any register. */
+static void expr_discharge(FuncState *fs, ExpDesc *e)
+{
+  BCIns ins;
+  if (e->k == VUPVAL) {
+    ins = BCINS_AD(BC_UGET, 0, e->u.s.info);
+  } else if (e->k == VGLOBAL) {
+    ins = BCINS_AD(BC_GGET, 0, const_str(fs, e));
+  } else if (e->k == VINDEXED) {
+    BCReg rc = e->u.s.aux;
+    if ((int32_t)rc < 0) {
+      ins = BCINS_ABC(BC_TGETS, 0, e->u.s.info, ~rc);
+    } else if (rc > BCMAX_C) {
+      ins = BCINS_ABC(BC_TGETB, 0, e->u.s.info, rc-(BCMAX_C+1));
+    } else {
+      bcreg_free(fs, rc);
+      ins = BCINS_ABC(BC_TGETV, 0, e->u.s.info, rc);
+    }
+    bcreg_free(fs, e->u.s.info);
+  } else if (e->k == VCALL) {
+    e->u.s.info = e->u.s.aux;
+    e->k = VNONRELOC;
+    return;
+  } else if (e->k == VLOCAL) {
+    e->k = VNONRELOC;
+    return;
+  } else {
+    return;
+  }
+  e->u.s.info = bcemit_INS(fs, ins);
+  e->k = VRELOCABLE;
+}
+
+/* Emit bytecode to set a range of registers to nil. */
+static void bcemit_nil(FuncState *fs, BCReg from, BCReg n)
+{
+  if (fs->pc > fs->lasttarget) {  /* No jumps to current position? */
+    BCIns *ip = &fs->bcbase[fs->pc-1].ins;
+    BCReg pto, pfrom = bc_a(*ip);
+    switch (bc_op(*ip)) {  /* Try to merge with the previous instruction. */
+    case BC_KPRI:
+      if (bc_d(*ip) != ~LJ_TNIL) break;
+      if (from == pfrom) {
+	if (n == 1) return;
+      } else if (from == pfrom+1) {
+	from = pfrom;
+	n++;
+      } else {
+	break;
+      }
+      *ip = BCINS_AD(BC_KNIL, from, from+n-1);  /* Replace KPRI. */
+      return;
+    case BC_KNIL:
+      pto = bc_d(*ip);
+      if (pfrom <= from && from <= pto+1) {  /* Can we connect both ranges? */
+	if (from+n-1 > pto)
+	  setbc_d(ip, from+n-1);  /* Patch previous instruction range. */
+	return;
+      }
+      break;
+    default:
+      break;
+    }
+  }
+  /* Emit new instruction or replace old instruction. */
+  bcemit_INS(fs, n == 1 ? BCINS_AD(BC_KPRI, from, VKNIL) :
+			  BCINS_AD(BC_KNIL, from, from+n-1));
+}
+
+/* Discharge an expression to a specific register. Ignore branches. */
+static void expr_toreg_nobranch(FuncState *fs, ExpDesc *e, BCReg reg)
+{
+  BCIns ins;
+  expr_discharge(fs, e);
+  if (e->k == VKSTR) {
+    ins = BCINS_AD(BC_KSTR, reg, const_str(fs, e));
+  } else if (e->k == VKNUM) {
+#if LJ_DUALNUM
+    cTValue *tv = expr_numtv(e);
+    if (tvisint(tv) && checki16(intV(tv)))
+      ins = BCINS_AD(BC_KSHORT, reg, (BCReg)(uint16_t)intV(tv));
+    else
+#else
+    lua_Number n = expr_numberV(e);
+    int32_t k = lj_num2int(n);
+    if (checki16(k) && n == (lua_Number)k)
+      ins = BCINS_AD(BC_KSHORT, reg, (BCReg)(uint16_t)k);
+    else
+#endif
+      ins = BCINS_AD(BC_KNUM, reg, const_num(fs, e));
+#if LJ_HASFFI
+  } else if (e->k == VKCDATA) {
+    fs->flags |= PROTO_FFI;
+    ins = BCINS_AD(BC_KCDATA, reg,
+		   const_gc(fs, obj2gco(cdataV(&e->u.nval)), LJ_TCDATA));
+#endif
+  } else if (e->k == VRELOCABLE) {
+    setbc_a(bcptr(fs, e), reg);
+    goto noins;
+  } else if (e->k == VNONRELOC) {
+    if (reg == e->u.s.info)
+      goto noins;
+    ins = BCINS_AD(BC_MOV, reg, e->u.s.info);
+  } else if (e->k == VKNIL) {
+    bcemit_nil(fs, reg, 1);
+    goto noins;
+  } else if (e->k <= VKTRUE) {
+    ins = BCINS_AD(BC_KPRI, reg, const_pri(e));
+  } else {
+    lua_assert(e->k == VVOID || e->k == VJMP);
+    return;
+  }
+  bcemit_INS(fs, ins);
+noins:
+  e->u.s.info = reg;
+  e->k = VNONRELOC;
+}
+
+/* Forward declaration. */
+static BCPos bcemit_jmp(FuncState *fs);
+
+/* Discharge an expression to a specific register. */
+static void expr_toreg(FuncState *fs, ExpDesc *e, BCReg reg)
+{
+  expr_toreg_nobranch(fs, e, reg);
+  if (e->k == VJMP)
+    jmp_append(fs, &e->t, e->u.s.info);  /* Add it to the true jump list. */
+  if (expr_hasjump(e)) {  /* Discharge expression with branches. */
+    BCPos jend, jfalse = NO_JMP, jtrue = NO_JMP;
+    if (jmp_novalue(fs, e->t) || jmp_novalue(fs, e->f)) {
+      BCPos jval = (e->k == VJMP) ? NO_JMP : bcemit_jmp(fs);
+      jfalse = bcemit_AD(fs, BC_KPRI, reg, VKFALSE);
+      bcemit_AJ(fs, BC_JMP, fs->freereg, 1);
+      jtrue = bcemit_AD(fs, BC_KPRI, reg, VKTRUE);
+      jmp_tohere(fs, jval);
+    }
+    jend = fs->pc;
+    fs->lasttarget = jend;
+    jmp_patchval(fs, e->f, jend, reg, jfalse);
+    jmp_patchval(fs, e->t, jend, reg, jtrue);
+  }
+  e->f = e->t = NO_JMP;
+  e->u.s.info = reg;
+  e->k = VNONRELOC;
+}
+
+/* Discharge an expression to the next free register. */
+static void expr_tonextreg(FuncState *fs, ExpDesc *e)
+{
+  expr_discharge(fs, e);
+  expr_free(fs, e);
+  bcreg_reserve(fs, 1);
+  expr_toreg(fs, e, fs->freereg - 1);
+}
+
+/* Discharge an expression to any register. */
+static BCReg expr_toanyreg(FuncState *fs, ExpDesc *e)
+{
+  expr_discharge(fs, e);
+  if (e->k == VNONRELOC) {
+    if (!expr_hasjump(e)) return e->u.s.info;  /* Already in a register. */
+    if (e->u.s.info >= fs->nactvar) {
+      expr_toreg(fs, e, e->u.s.info);  /* Discharge to temp. register. */
+      return e->u.s.info;
+    }
+  }
+  expr_tonextreg(fs, e);  /* Discharge to next register. */
+  return e->u.s.info;
+}
+
+/* Partially discharge expression to a value. */
+static void expr_toval(FuncState *fs, ExpDesc *e)
+{
+  if (expr_hasjump(e))
+    expr_toanyreg(fs, e);
+  else
+    expr_discharge(fs, e);
+}
+
+/* Emit store for LHS expression. */
+static void bcemit_store(FuncState *fs, ExpDesc *var, ExpDesc *e)
+{
+  BCIns ins;
+  if (var->k == VLOCAL) {
+    fs->ls->vstack[var->u.s.aux].info |= VSTACK_VAR_RW;
+    expr_free(fs, e);
+    expr_toreg(fs, e, var->u.s.info);
+    return;
+  } else if (var->k == VUPVAL) {
+    fs->ls->vstack[var->u.s.aux].info |= VSTACK_VAR_RW;
+    expr_toval(fs, e);
+    if (e->k <= VKTRUE)
+      ins = BCINS_AD(BC_USETP, var->u.s.info, const_pri(e));
+    else if (e->k == VKSTR)
+      ins = BCINS_AD(BC_USETS, var->u.s.info, const_str(fs, e));
+    else if (e->k == VKNUM)
+      ins = BCINS_AD(BC_USETN, var->u.s.info, const_num(fs, e));
+    else
+      ins = BCINS_AD(BC_USETV, var->u.s.info, expr_toanyreg(fs, e));
+  } else if (var->k == VGLOBAL) {
+    BCReg ra = expr_toanyreg(fs, e);
+    ins = BCINS_AD(BC_GSET, ra, const_str(fs, var));
+  } else {
+    BCReg ra, rc;
+    lua_assert(var->k == VINDEXED);
+    ra = expr_toanyreg(fs, e);
+    rc = var->u.s.aux;
+    if ((int32_t)rc < 0) {
+      ins = BCINS_ABC(BC_TSETS, ra, var->u.s.info, ~rc);
+    } else if (rc > BCMAX_C) {
+      ins = BCINS_ABC(BC_TSETB, ra, var->u.s.info, rc-(BCMAX_C+1));
+    } else {
+      /* Free late alloced key reg to avoid assert on free of value reg. */
+      /* This can only happen when called from expr_table(). */
+      lua_assert(e->k != VNONRELOC || ra < fs->nactvar ||
+		 rc < ra || (bcreg_free(fs, rc),1));
+      ins = BCINS_ABC(BC_TSETV, ra, var->u.s.info, rc);
+    }
+  }
+  bcemit_INS(fs, ins);
+  expr_free(fs, e);
+}
+
+/* Emit method lookup expression. */
+static void bcemit_method(FuncState *fs, ExpDesc *e, ExpDesc *key)
+{
+  BCReg idx, func, obj = expr_toanyreg(fs, e);
+  expr_free(fs, e);
+  func = fs->freereg;
+  bcemit_AD(fs, BC_MOV, func+1, obj);  /* Copy object to first argument. */
+  lua_assert(expr_isstrk(key));
+  idx = const_str(fs, key);
+  if (idx <= BCMAX_C) {
+    bcreg_reserve(fs, 2);
+    bcemit_ABC(fs, BC_TGETS, func, obj, idx);
+  } else {
+    bcreg_reserve(fs, 3);
+    bcemit_AD(fs, BC_KSTR, func+2, idx);
+    bcemit_ABC(fs, BC_TGETV, func, obj, func+2);
+    fs->freereg--;
+  }
+  e->u.s.info = func;
+  e->k = VNONRELOC;
+}
+
+/* -- Bytecode emitter for branches --------------------------------------- */
+
+/* Emit unconditional branch. */
+static BCPos bcemit_jmp(FuncState *fs)
+{
+  BCPos jpc = fs->jpc;
+  BCPos j = fs->pc - 1;
+  BCIns *ip = &fs->bcbase[j].ins;
+  fs->jpc = NO_JMP;
+  if ((int32_t)j >= (int32_t)fs->lasttarget && bc_op(*ip) == BC_UCLO)
+    setbc_j(ip, NO_JMP);
+  else
+    j = bcemit_AJ(fs, BC_JMP, fs->freereg, NO_JMP);
+  jmp_append(fs, &j, jpc);
+  return j;
+}
+
+/* Invert branch condition of bytecode instruction. */
+static void invertcond(FuncState *fs, ExpDesc *e)
+{
+  BCIns *ip = &fs->bcbase[e->u.s.info - 1].ins;
+  setbc_op(ip, bc_op(*ip)^1);
+}
+
+/* Emit conditional branch. */
+static BCPos bcemit_branch(FuncState *fs, ExpDesc *e, int cond)
+{
+  BCPos pc;
+  if (e->k == VRELOCABLE) {
+    BCIns *ip = bcptr(fs, e);
+    if (bc_op(*ip) == BC_NOT) {
+      *ip = BCINS_AD(cond ? BC_ISF : BC_IST, 0, bc_d(*ip));
+      return bcemit_jmp(fs);
+    }
+  }
+  if (e->k != VNONRELOC) {
+    bcreg_reserve(fs, 1);
+    expr_toreg_nobranch(fs, e, fs->freereg-1);
+  }
+  bcemit_AD(fs, cond ? BC_ISTC : BC_ISFC, NO_REG, e->u.s.info);
+  pc = bcemit_jmp(fs);
+  expr_free(fs, e);
+  return pc;
+}
+
+/* Emit branch on true condition. */
+static void bcemit_branch_t(FuncState *fs, ExpDesc *e)
+{
+  BCPos pc;
+  expr_discharge(fs, e);
+  if (e->k == VKSTR || e->k == VKNUM || e->k == VKTRUE)
+    pc = NO_JMP;  /* Never jump. */
+  else if (e->k == VJMP)
+    invertcond(fs, e), pc = e->u.s.info;
+  else if (e->k == VKFALSE || e->k == VKNIL)
+    expr_toreg_nobranch(fs, e, NO_REG), pc = bcemit_jmp(fs);
+  else
+    pc = bcemit_branch(fs, e, 0);
+  jmp_append(fs, &e->f, pc);
+  jmp_tohere(fs, e->t);
+  e->t = NO_JMP;
+}
+
+/* Emit branch on false condition. */
+static void bcemit_branch_f(FuncState *fs, ExpDesc *e)
+{
+  BCPos pc;
+  expr_discharge(fs, e);
+  if (e->k == VKNIL || e->k == VKFALSE)
+    pc = NO_JMP;  /* Never jump. */
+  else if (e->k == VJMP)
+    pc = e->u.s.info;
+  else if (e->k == VKSTR || e->k == VKNUM || e->k == VKTRUE)
+    expr_toreg_nobranch(fs, e, NO_REG), pc = bcemit_jmp(fs);
+  else
+    pc = bcemit_branch(fs, e, 1);
+  jmp_append(fs, &e->t, pc);
+  jmp_tohere(fs, e->f);
+  e->f = NO_JMP;
+}
+
+/* -- Bytecode emitter for operators -------------------------------------- */
+
+/* Try constant-folding of arithmetic operators. */
+static int foldarith(BinOpr opr, ExpDesc *e1, ExpDesc *e2)
+{
+  TValue o;
+  lua_Number n;
+  if (!expr_isnumk_nojump(e1) || !expr_isnumk_nojump(e2)) return 0;
+  n = lj_vm_foldarith(expr_numberV(e1), expr_numberV(e2), (int)opr-OPR_ADD);
+  setnumV(&o, n);
+  if (tvisnan(&o) || tvismzero(&o)) return 0;  /* Avoid NaN and -0 as consts. */
+  if (LJ_DUALNUM) {
+    int32_t k = lj_num2int(n);
+    if ((lua_Number)k == n) {
+      setintV(&e1->u.nval, k);
+      return 1;
+    }
+  }
+  setnumV(&e1->u.nval, n);
+  return 1;
+}
+
+/* Emit arithmetic operator. */
+static void bcemit_arith(FuncState *fs, BinOpr opr, ExpDesc *e1, ExpDesc *e2)
+{
+  BCReg rb, rc, t;
+  uint32_t op;
+  if (foldarith(opr, e1, e2))
+    return;
+  if (opr == OPR_POW) {
+    op = BC_POW;
+    rc = expr_toanyreg(fs, e2);
+    rb = expr_toanyreg(fs, e1);
+  } else {
+    op = opr-OPR_ADD+BC_ADDVV;
+    /* Must discharge 2nd operand first since VINDEXED might free regs. */
+    expr_toval(fs, e2);
+    if (expr_isnumk(e2) && (rc = const_num(fs, e2)) <= BCMAX_C)
+      op -= BC_ADDVV-BC_ADDVN;
+    else
+      rc = expr_toanyreg(fs, e2);
+    /* 1st operand discharged by bcemit_binop_left, but need KNUM/KSHORT. */
+    lua_assert(expr_isnumk(e1) || e1->k == VNONRELOC);
+    expr_toval(fs, e1);
+    /* Avoid two consts to satisfy bytecode constraints. */
+    if (expr_isnumk(e1) && !expr_isnumk(e2) &&
+	(t = const_num(fs, e1)) <= BCMAX_B) {
+      rb = rc; rc = t; op -= BC_ADDVV-BC_ADDNV;
+    } else {
+      rb = expr_toanyreg(fs, e1);
+    }
+  }
+  /* Using expr_free might cause asserts if the order is wrong. */
+  if (e1->k == VNONRELOC && e1->u.s.info >= fs->nactvar) fs->freereg--;
+  if (e2->k == VNONRELOC && e2->u.s.info >= fs->nactvar) fs->freereg--;
+  e1->u.s.info = bcemit_ABC(fs, op, 0, rb, rc);
+  e1->k = VRELOCABLE;
+}
+
+/* Emit comparison operator. */
+static void bcemit_comp(FuncState *fs, BinOpr opr, ExpDesc *e1, ExpDesc *e2)
+{
+  ExpDesc *eret = e1;
+  BCIns ins;
+  expr_toval(fs, e1);
+  if (opr == OPR_EQ || opr == OPR_NE) {
+    BCOp op = opr == OPR_EQ ? BC_ISEQV : BC_ISNEV;
+    BCReg ra;
+    if (expr_isk(e1)) { e1 = e2; e2 = eret; }  /* Need constant in 2nd arg. */
+    ra = expr_toanyreg(fs, e1);  /* First arg must be in a reg. */
+    expr_toval(fs, e2);
+    switch (e2->k) {
+    case VKNIL: case VKFALSE: case VKTRUE:
+      ins = BCINS_AD(op+(BC_ISEQP-BC_ISEQV), ra, const_pri(e2));
+      break;
+    case VKSTR:
+      ins = BCINS_AD(op+(BC_ISEQS-BC_ISEQV), ra, const_str(fs, e2));
+      break;
+    case VKNUM:
+      ins = BCINS_AD(op+(BC_ISEQN-BC_ISEQV), ra, const_num(fs, e2));
+      break;
+    default:
+      ins = BCINS_AD(op, ra, expr_toanyreg(fs, e2));
+      break;
+    }
+  } else {
+    uint32_t op = opr-OPR_LT+BC_ISLT;
+    BCReg ra, rd;
+    if ((op-BC_ISLT) & 1) {  /* GT -> LT, GE -> LE */
+      e1 = e2; e2 = eret;  /* Swap operands. */
+      op = ((op-BC_ISLT)^3)+BC_ISLT;
+      expr_toval(fs, e1);
+    }
+    rd = expr_toanyreg(fs, e2);
+    ra = expr_toanyreg(fs, e1);
+    ins = BCINS_AD(op, ra, rd);
+  }
+  /* Using expr_free might cause asserts if the order is wrong. */
+  if (e1->k == VNONRELOC && e1->u.s.info >= fs->nactvar) fs->freereg--;
+  if (e2->k == VNONRELOC && e2->u.s.info >= fs->nactvar) fs->freereg--;
+  bcemit_INS(fs, ins);
+  eret->u.s.info = bcemit_jmp(fs);
+  eret->k = VJMP;
+}
+
+/* Fixup left side of binary operator. */
+static void bcemit_binop_left(FuncState *fs, BinOpr op, ExpDesc *e)
+{
+  if (op == OPR_AND) {
+    bcemit_branch_t(fs, e);
+  } else if (op == OPR_OR) {
+    bcemit_branch_f(fs, e);
+  } else if (op == OPR_CONCAT) {
+    expr_tonextreg(fs, e);
+  } else if (op == OPR_EQ || op == OPR_NE) {
+    if (!expr_isk_nojump(e)) expr_toanyreg(fs, e);
+  } else {
+    if (!expr_isnumk_nojump(e)) expr_toanyreg(fs, e);
+  }
+}
+
+/* Emit binary operator. */
+static void bcemit_binop(FuncState *fs, BinOpr op, ExpDesc *e1, ExpDesc *e2)
+{
+  if (op <= OPR_POW) {
+    bcemit_arith(fs, op, e1, e2);
+  } else if (op == OPR_AND) {
+    lua_assert(e1->t == NO_JMP);  /* List must be closed. */
+    expr_discharge(fs, e2);
+    jmp_append(fs, &e2->f, e1->f);
+    *e1 = *e2;
+  } else if (op == OPR_OR) {
+    lua_assert(e1->f == NO_JMP);  /* List must be closed. */
+    expr_discharge(fs, e2);
+    jmp_append(fs, &e2->t, e1->t);
+    *e1 = *e2;
+  } else if (op == OPR_CONCAT) {
+    expr_toval(fs, e2);
+    if (e2->k == VRELOCABLE && bc_op(*bcptr(fs, e2)) == BC_CAT) {
+      lua_assert(e1->u.s.info == bc_b(*bcptr(fs, e2))-1);
+      expr_free(fs, e1);
+      setbc_b(bcptr(fs, e2), e1->u.s.info);
+      e1->u.s.info = e2->u.s.info;
+    } else {
+      expr_tonextreg(fs, e2);
+      expr_free(fs, e2);
+      expr_free(fs, e1);
+      e1->u.s.info = bcemit_ABC(fs, BC_CAT, 0, e1->u.s.info, e2->u.s.info);
+    }
+    e1->k = VRELOCABLE;
+  } else {
+    lua_assert(op == OPR_NE || op == OPR_EQ ||
+	       op == OPR_LT || op == OPR_GE || op == OPR_LE || op == OPR_GT);
+    bcemit_comp(fs, op, e1, e2);
+  }
+}
+
+/* Emit unary operator. */
+static void bcemit_unop(FuncState *fs, BCOp op, ExpDesc *e)
+{
+  if (op == BC_NOT) {
+    /* Swap true and false lists. */
+    { BCPos temp = e->f; e->f = e->t; e->t = temp; }
+    jmp_dropval(fs, e->f);
+    jmp_dropval(fs, e->t);
+    expr_discharge(fs, e);
+    if (e->k == VKNIL || e->k == VKFALSE) {
+      e->k = VKTRUE;
+      return;
+    } else if (expr_isk(e) || (LJ_HASFFI && e->k == VKCDATA)) {
+      e->k = VKFALSE;
+      return;
+    } else if (e->k == VJMP) {
+      invertcond(fs, e);
+      return;
+    } else if (e->k == VRELOCABLE) {
+      bcreg_reserve(fs, 1);
+      setbc_a(bcptr(fs, e), fs->freereg-1);
+      e->u.s.info = fs->freereg-1;
+      e->k = VNONRELOC;
+    } else {
+      lua_assert(e->k == VNONRELOC);
+    }
+  } else {
+    lua_assert(op == BC_UNM || op == BC_LEN);
+    if (op == BC_UNM && !expr_hasjump(e)) {  /* Constant-fold negations. */
+#if LJ_HASFFI
+      if (e->k == VKCDATA) {  /* Fold in-place since cdata is not interned. */
+	GCcdata *cd = cdataV(&e->u.nval);
+	int64_t *p = (int64_t *)cdataptr(cd);
+	if (cd->ctypeid == CTID_COMPLEX_DOUBLE)
+	  p[1] ^= (int64_t)U64x(80000000,00000000);
+	else
+	  *p = -*p;
+	return;
+      } else
+#endif
+      if (expr_isnumk(e) && !expr_numiszero(e)) {  /* Avoid folding to -0. */
+	TValue *o = expr_numtv(e);
+	if (tvisint(o)) {
+	  int32_t k = intV(o);
+	  if (k == -k)
+	    setnumV(o, -(lua_Number)k);
+	  else
+	    setintV(o, -k);
+	  return;
+	} else {
+	  o->u64 ^= U64x(80000000,00000000);
+	  return;
+	}
+      }
+    }
+    expr_toanyreg(fs, e);
+  }
+  expr_free(fs, e);
+  e->u.s.info = bcemit_AD(fs, op, 0, e->u.s.info);
+  e->k = VRELOCABLE;
+}
+
+/* -- Lexer support ------------------------------------------------------- */
+
+/* Check and consume optional token. */
+static int lex_opt(LexState *ls, LexToken tok)
+{
+  if (ls->token == tok) {
+    lj_lex_next(ls);
+    return 1;
+  }
+  return 0;
+}
+
+/* Check and consume token. */
+static void lex_check(LexState *ls, LexToken tok)
+{
+  if (ls->token != tok)
+    err_token(ls, tok);
+  lj_lex_next(ls);
+}
+
+/* Check for matching token. */
+static void lex_match(LexState *ls, LexToken what, LexToken who, BCLine line)
+{
+  if (!lex_opt(ls, what)) {
+    if (line == ls->linenumber) {
+      err_token(ls, what);
+    } else {
+      const char *swhat = lj_lex_token2str(ls, what);
+      const char *swho = lj_lex_token2str(ls, who);
+      lj_lex_error(ls, ls->token, LJ_ERR_XMATCH, swhat, swho, line);
+    }
+  }
+}
+
+/* Check for string token. */
+static GCstr *lex_str(LexState *ls)
+{
+  GCstr *s;
+  if (ls->token != TK_name && (LJ_52 || ls->token != TK_goto))
+    err_token(ls, TK_name);
+  s = strV(&ls->tokenval);
+  lj_lex_next(ls);
+  return s;
+}
+
+/* -- Variable handling --------------------------------------------------- */
+
+#define var_get(ls, fs, i)	((ls)->vstack[(fs)->varmap[(i)]])
+
+/* Define a new local variable. */
+static void var_new(LexState *ls, BCReg n, GCstr *name)
+{
+  FuncState *fs = ls->fs;
+  MSize vtop = ls->vtop;
+  checklimit(fs, fs->nactvar+n, LJ_MAX_LOCVAR, "local variables");
+  if (LJ_UNLIKELY(vtop >= ls->sizevstack)) {
+    if (ls->sizevstack >= LJ_MAX_VSTACK)
+      lj_lex_error(ls, 0, LJ_ERR_XLIMC, LJ_MAX_VSTACK);
+    lj_mem_growvec(ls->L, ls->vstack, ls->sizevstack, LJ_MAX_VSTACK, VarInfo);
+  }
+  lua_assert((uintptr_t)name < VARNAME__MAX ||
+	     lj_tab_getstr(fs->kt, name) != NULL);
+  /* NOBARRIER: name is anchored in fs->kt and ls->vstack is not a GCobj. */
+  setgcref(ls->vstack[vtop].name, obj2gco(name));
+  fs->varmap[fs->nactvar+n] = (uint16_t)vtop;
+  ls->vtop = vtop+1;
+}
+
+#define var_new_lit(ls, n, v) \
+  var_new(ls, (n), lj_parse_keepstr(ls, "" v, sizeof(v)-1))
+
+#define var_new_fixed(ls, n, vn) \
+  var_new(ls, (n), (GCstr *)(uintptr_t)(vn))
+
+/* Add local variables. */
+static void var_add(LexState *ls, BCReg nvars)
+{
+  FuncState *fs = ls->fs;
+  BCReg nactvar = fs->nactvar;
+  while (nvars--) {
+    VarInfo *v = &var_get(ls, fs, nactvar);
+    v->startpc = fs->pc;
+    v->slot = nactvar++;
+    v->info = 0;
+  }
+  fs->nactvar = nactvar;
+}
+
+/* Remove local variables. */
+static void var_remove(LexState *ls, BCReg tolevel)
+{
+  FuncState *fs = ls->fs;
+  while (fs->nactvar > tolevel)
+    var_get(ls, fs, --fs->nactvar).endpc = fs->pc;
+}
+
+/* Lookup local variable name. */
+static BCReg var_lookup_local(FuncState *fs, GCstr *n)
+{
+  int i;
+  for (i = fs->nactvar-1; i >= 0; i--) {
+    if (n == strref(var_get(fs->ls, fs, i).name))
+      return (BCReg)i;
+  }
+  return (BCReg)-1;  /* Not found. */
+}
+
+/* Lookup or add upvalue index. */
+static MSize var_lookup_uv(FuncState *fs, MSize vidx, ExpDesc *e)
+{
+  MSize i, n = fs->nuv;
+  for (i = 0; i < n; i++)
+    if (fs->uvmap[i] == vidx)
+      return i;  /* Already exists. */
+  /* Otherwise create a new one. */
+  checklimit(fs, fs->nuv, LJ_MAX_UPVAL, "upvalues");
+  lua_assert(e->k == VLOCAL || e->k == VUPVAL);
+  fs->uvmap[n] = (uint16_t)vidx;
+  fs->uvtmp[n] = (uint16_t)(e->k == VLOCAL ? vidx : LJ_MAX_VSTACK+e->u.s.info);
+  fs->nuv = n+1;
+  return n;
+}
+
+/* Forward declaration. */
+static void fscope_uvmark(FuncState *fs, BCReg level);
+
+/* Recursively lookup variables in enclosing functions. */
+static MSize var_lookup_(FuncState *fs, GCstr *name, ExpDesc *e, int first)
+{
+  if (fs) {
+    BCReg reg = var_lookup_local(fs, name);
+    if ((int32_t)reg >= 0) {  /* Local in this function? */
+      expr_init(e, VLOCAL, reg);
+      if (!first)
+	fscope_uvmark(fs, reg);  /* Scope now has an upvalue. */
+      return (MSize)(e->u.s.aux = (uint32_t)fs->varmap[reg]);
+    } else {
+      MSize vidx = var_lookup_(fs->prev, name, e, 0);  /* Var in outer func? */
+      if ((int32_t)vidx >= 0) {  /* Yes, make it an upvalue here. */
+	e->u.s.info = (uint8_t)var_lookup_uv(fs, vidx, e);
+	e->k = VUPVAL;
+	return vidx;
+      }
+    }
+  } else {  /* Not found in any function, must be a global. */
+    expr_init(e, VGLOBAL, 0);
+    e->u.sval = name;
+  }
+  return (MSize)-1;  /* Global. */
+}
+
+/* Lookup variable name. */
+#define var_lookup(ls, e) \
+  var_lookup_((ls)->fs, lex_str(ls), (e), 1)
+
+/* -- Goto an label handling ---------------------------------------------- */
+
+/* Add a new goto or label. */
+static MSize gola_new(LexState *ls, GCstr *name, uint8_t info, BCPos pc)
+{
+  FuncState *fs = ls->fs;
+  MSize vtop = ls->vtop;
+  if (LJ_UNLIKELY(vtop >= ls->sizevstack)) {
+    if (ls->sizevstack >= LJ_MAX_VSTACK)
+      lj_lex_error(ls, 0, LJ_ERR_XLIMC, LJ_MAX_VSTACK);
+    lj_mem_growvec(ls->L, ls->vstack, ls->sizevstack, LJ_MAX_VSTACK, VarInfo);
+  }
+  lua_assert(name == NAME_BREAK || lj_tab_getstr(fs->kt, name) != NULL);
+  /* NOBARRIER: name is anchored in fs->kt and ls->vstack is not a GCobj. */
+  setgcref(ls->vstack[vtop].name, obj2gco(name));
+  ls->vstack[vtop].startpc = pc;
+  ls->vstack[vtop].slot = (uint8_t)fs->nactvar;
+  ls->vstack[vtop].info = info;
+  ls->vtop = vtop+1;
+  return vtop;
+}
+
+#define gola_isgoto(v)		((v)->info & VSTACK_GOTO)
+#define gola_islabel(v)		((v)->info & VSTACK_LABEL)
+#define gola_isgotolabel(v)	((v)->info & (VSTACK_GOTO|VSTACK_LABEL))
+
+/* Patch goto to jump to label. */
+static void gola_patch(LexState *ls, VarInfo *vg, VarInfo *vl)
+{
+  FuncState *fs = ls->fs;
+  BCPos pc = vg->startpc;
+  setgcrefnull(vg->name);  /* Invalidate pending goto. */
+  setbc_a(&fs->bcbase[pc].ins, vl->slot);
+  jmp_patch(fs, pc, vl->startpc);
+}
+
+/* Patch goto to close upvalues. */
+static void gola_close(LexState *ls, VarInfo *vg)
+{
+  FuncState *fs = ls->fs;
+  BCPos pc = vg->startpc;
+  BCIns *ip = &fs->bcbase[pc].ins;
+  lua_assert(gola_isgoto(vg));
+  lua_assert(bc_op(*ip) == BC_JMP || bc_op(*ip) == BC_UCLO);
+  setbc_a(ip, vg->slot);
+  if (bc_op(*ip) == BC_JMP) {
+    BCPos next = jmp_next(fs, pc);
+    if (next != NO_JMP) jmp_patch(fs, next, pc);  /* Jump to UCLO. */
+    setbc_op(ip, BC_UCLO);  /* Turn into UCLO. */
+    setbc_j(ip, NO_JMP);
+  }
+}
+
+/* Resolve pending forward gotos for label. */
+static void gola_resolve(LexState *ls, FuncScope *bl, MSize idx)
+{
+  VarInfo *vg = ls->vstack + bl->vstart;
+  VarInfo *vl = ls->vstack + idx;
+  for (; vg < vl; vg++)
+    if (gcrefeq(vg->name, vl->name) && gola_isgoto(vg)) {
+      if (vg->slot < vl->slot) {
+	GCstr *name = strref(var_get(ls, ls->fs, vg->slot).name);
+	lua_assert((uintptr_t)name >= VARNAME__MAX);
+	ls->linenumber = ls->fs->bcbase[vg->startpc].line;
+	lua_assert(strref(vg->name) != NAME_BREAK);
+	lj_lex_error(ls, 0, LJ_ERR_XGSCOPE,
+		     strdata(strref(vg->name)), strdata(name));
+      }
+      gola_patch(ls, vg, vl);
+    }
+}
+
+/* Fixup remaining gotos and labels for scope. */
+static void gola_fixup(LexState *ls, FuncScope *bl)
+{
+  VarInfo *v = ls->vstack + bl->vstart;
+  VarInfo *ve = ls->vstack + ls->vtop;
+  for (; v < ve; v++) {
+    GCstr *name = strref(v->name);
+    if (name != NULL) {  /* Only consider remaining valid gotos/labels. */
+      if (gola_islabel(v)) {
+	VarInfo *vg;
+	setgcrefnull(v->name);  /* Invalidate label that goes out of scope. */
+	for (vg = v+1; vg < ve; vg++)  /* Resolve pending backward gotos. */
+	  if (strref(vg->name) == name && gola_isgoto(vg)) {
+	    if ((bl->flags&FSCOPE_UPVAL) && vg->slot > v->slot)
+	      gola_close(ls, vg);
+	    gola_patch(ls, vg, v);
+	  }
+      } else if (gola_isgoto(v)) {
+	if (bl->prev) {  /* Propagate goto or break to outer scope. */
+	  bl->prev->flags |= name == NAME_BREAK ? FSCOPE_BREAK : FSCOPE_GOLA;
+	  v->slot = bl->nactvar;
+	  if ((bl->flags & FSCOPE_UPVAL))
+	    gola_close(ls, v);
+	} else {  /* No outer scope: undefined goto label or no loop. */
+	  ls->linenumber = ls->fs->bcbase[v->startpc].line;
+	  if (name == NAME_BREAK)
+	    lj_lex_error(ls, 0, LJ_ERR_XBREAK);
+	  else
+	    lj_lex_error(ls, 0, LJ_ERR_XLUNDEF, strdata(name));
+	}
+      }
+    }
+  }
+}
+
+/* Find existing label. */
+static VarInfo *gola_findlabel(LexState *ls, GCstr *name)
+{
+  VarInfo *v = ls->vstack + ls->fs->bl->vstart;
+  VarInfo *ve = ls->vstack + ls->vtop;
+  for (; v < ve; v++)
+    if (strref(v->name) == name && gola_islabel(v))
+      return v;
+  return NULL;
+}
+
+/* -- Scope handling ------------------------------------------------------ */
+
+/* Begin a scope. */
+static void fscope_begin(FuncState *fs, FuncScope *bl, int flags)
+{
+  bl->nactvar = (uint8_t)fs->nactvar;
+  bl->flags = flags;
+  bl->vstart = fs->ls->vtop;
+  bl->prev = fs->bl;
+  fs->bl = bl;
+  lua_assert(fs->freereg == fs->nactvar);
+}
+
+/* End a scope. */
+static void fscope_end(FuncState *fs)
+{
+  FuncScope *bl = fs->bl;
+  LexState *ls = fs->ls;
+  fs->bl = bl->prev;
+  var_remove(ls, bl->nactvar);
+  fs->freereg = fs->nactvar;
+  lua_assert(bl->nactvar == fs->nactvar);
+  if ((bl->flags & (FSCOPE_UPVAL|FSCOPE_NOCLOSE)) == FSCOPE_UPVAL)
+    bcemit_AJ(fs, BC_UCLO, bl->nactvar, 0);
+  if ((bl->flags & FSCOPE_BREAK)) {
+    if ((bl->flags & FSCOPE_LOOP)) {
+      MSize idx = gola_new(ls, NAME_BREAK, VSTACK_LABEL, fs->pc);
+      ls->vtop = idx;  /* Drop break label immediately. */
+      gola_resolve(ls, bl, idx);
+      return;
+    }  /* else: need the fixup step to propagate the breaks. */
+  } else if (!(bl->flags & FSCOPE_GOLA)) {
+    return;
+  }
+  gola_fixup(ls, bl);
+}
+
+/* Mark scope as having an upvalue. */
+static void fscope_uvmark(FuncState *fs, BCReg level)
+{
+  FuncScope *bl;
+  for (bl = fs->bl; bl && bl->nactvar > level; bl = bl->prev)
+    ;
+  if (bl)
+    bl->flags |= FSCOPE_UPVAL;
+}
+
+/* -- Function state management ------------------------------------------- */
+
+/* Fixup bytecode for prototype. */
+static void fs_fixup_bc(FuncState *fs, GCproto *pt, BCIns *bc, MSize n)
+{
+  BCInsLine *base = fs->bcbase;
+  MSize i;
+  pt->sizebc = n;
+  bc[0] = BCINS_AD((fs->flags & PROTO_VARARG) ? BC_FUNCV : BC_FUNCF,
+		   fs->framesize, 0);
+  for (i = 1; i < n; i++)
+    bc[i] = base[i].ins;
+}
+
+/* Fixup upvalues for child prototype, step #2. */
+static void fs_fixup_uv2(FuncState *fs, GCproto *pt)
+{
+  VarInfo *vstack = fs->ls->vstack;
+  uint16_t *uv = proto_uv(pt);
+  MSize i, n = pt->sizeuv;
+  for (i = 0; i < n; i++) {
+    VarIndex vidx = uv[i];
+    if (vidx >= LJ_MAX_VSTACK)
+      uv[i] = vidx - LJ_MAX_VSTACK;
+    else if ((vstack[vidx].info & VSTACK_VAR_RW))
+      uv[i] = vstack[vidx].slot | PROTO_UV_LOCAL;
+    else
+      uv[i] = vstack[vidx].slot | PROTO_UV_LOCAL | PROTO_UV_IMMUTABLE;
+  }
+}
+
+/* Fixup constants for prototype. */
+static void fs_fixup_k(FuncState *fs, GCproto *pt, void *kptr)
+{
+  GCtab *kt;
+  TValue *array;
+  Node *node;
+  MSize i, hmask;
+  checklimitgt(fs, fs->nkn, BCMAX_D+1, "constants");
+  checklimitgt(fs, fs->nkgc, BCMAX_D+1, "constants");
+  setmref(pt->k, kptr);
+  pt->sizekn = fs->nkn;
+  pt->sizekgc = fs->nkgc;
+  kt = fs->kt;
+  array = tvref(kt->array);
+  for (i = 0; i < kt->asize; i++)
+    if (tvhaskslot(&array[i])) {
+      TValue *tv = &((TValue *)kptr)[tvkslot(&array[i])];
+      if (LJ_DUALNUM)
+	setintV(tv, (int32_t)i);
+      else
+	setnumV(tv, (lua_Number)i);
+    }
+  node = noderef(kt->node);
+  hmask = kt->hmask;
+  for (i = 0; i <= hmask; i++) {
+    Node *n = &node[i];
+    if (tvhaskslot(&n->val)) {
+      ptrdiff_t kidx = (ptrdiff_t)tvkslot(&n->val);
+      lua_assert(!tvisint(&n->key));
+      if (tvisnum(&n->key)) {
+	TValue *tv = &((TValue *)kptr)[kidx];
+	if (LJ_DUALNUM) {
+	  lua_Number nn = numV(&n->key);
+	  int32_t k = lj_num2int(nn);
+	  lua_assert(!tvismzero(&n->key));
+	  if ((lua_Number)k == nn)
+	    setintV(tv, k);
+	  else
+	    *tv = n->key;
+	} else {
+	  *tv = n->key;
+	}
+      } else {
+	GCobj *o = gcV(&n->key);
+	setgcref(((GCRef *)kptr)[~kidx], o);
+	lj_gc_objbarrier(fs->L, pt, o);
+	if (tvisproto(&n->key))
+	  fs_fixup_uv2(fs, gco2pt(o));
+      }
+    }
+  }
+}
+
+/* Fixup upvalues for prototype, step #1. */
+static void fs_fixup_uv1(FuncState *fs, GCproto *pt, uint16_t *uv)
+{
+  setmref(pt->uv, uv);
+  pt->sizeuv = fs->nuv;
+  memcpy(uv, fs->uvtmp, fs->nuv*sizeof(VarIndex));
+}
+
+#ifndef LUAJIT_DISABLE_DEBUGINFO
+/* Prepare lineinfo for prototype. */
+static size_t fs_prep_line(FuncState *fs, BCLine numline)
+{
+  return (fs->pc-1) << (numline < 256 ? 0 : numline < 65536 ? 1 : 2);
+}
+
+/* Fixup lineinfo for prototype. */
+static void fs_fixup_line(FuncState *fs, GCproto *pt,
+			  void *lineinfo, BCLine numline)
+{
+  BCInsLine *base = fs->bcbase + 1;
+  BCLine first = fs->linedefined;
+  MSize i = 0, n = fs->pc-1;
+  pt->firstline = fs->linedefined;
+  pt->numline = numline;
+  setmref(pt->lineinfo, lineinfo);
+  if (LJ_LIKELY(numline < 256)) {
+    uint8_t *li = (uint8_t *)lineinfo;
+    do {
+      BCLine delta = base[i].line - first;
+      lua_assert(delta >= 0 && delta < 256);
+      li[i] = (uint8_t)delta;
+    } while (++i < n);
+  } else if (LJ_LIKELY(numline < 65536)) {
+    uint16_t *li = (uint16_t *)lineinfo;
+    do {
+      BCLine delta = base[i].line - first;
+      lua_assert(delta >= 0 && delta < 65536);
+      li[i] = (uint16_t)delta;
+    } while (++i < n);
+  } else {
+    uint32_t *li = (uint32_t *)lineinfo;
+    do {
+      BCLine delta = base[i].line - first;
+      lua_assert(delta >= 0);
+      li[i] = (uint32_t)delta;
+    } while (++i < n);
+  }
+}
+
+/* Resize buffer if needed. */
+static LJ_NOINLINE void fs_buf_resize(LexState *ls, MSize len)
+{
+  MSize sz = ls->sb.sz * 2;
+  while (ls->sb.n + len > sz) sz = sz * 2;
+  lj_str_resizebuf(ls->L, &ls->sb, sz);
+}
+
+static LJ_AINLINE void fs_buf_need(LexState *ls, MSize len)
+{
+  if (LJ_UNLIKELY(ls->sb.n + len > ls->sb.sz))
+    fs_buf_resize(ls, len);
+}
+
+/* Add string to buffer. */
+static void fs_buf_str(LexState *ls, const char *str, MSize len)
+{
+  char *p = ls->sb.buf + ls->sb.n;
+  MSize i;
+  ls->sb.n += len;
+  for (i = 0; i < len; i++) p[i] = str[i];
+}
+
+/* Add ULEB128 value to buffer. */
+static void fs_buf_uleb128(LexState *ls, uint32_t v)
+{
+  MSize n = ls->sb.n;
+  uint8_t *p = (uint8_t *)ls->sb.buf;
+  for (; v >= 0x80; v >>= 7)
+    p[n++] = (uint8_t)((v & 0x7f) | 0x80);
+  p[n++] = (uint8_t)v;
+  ls->sb.n = n;
+}
+
+/* Prepare variable info for prototype. */
+static size_t fs_prep_var(LexState *ls, FuncState *fs, size_t *ofsvar)
+{
+  VarInfo *vs =ls->vstack, *ve;
+  MSize i, n;
+  BCPos lastpc;
+  lj_str_resetbuf(&ls->sb);  /* Copy to temp. string buffer. */
+  /* Store upvalue names. */
+  for (i = 0, n = fs->nuv; i < n; i++) {
+    GCstr *s = strref(vs[fs->uvmap[i]].name);
+    MSize len = s->len+1;
+    fs_buf_need(ls, len);
+    fs_buf_str(ls, strdata(s), len);
+  }
+  *ofsvar = ls->sb.n;
+  lastpc = 0;
+  /* Store local variable names and compressed ranges. */
+  for (ve = vs + ls->vtop, vs += fs->vbase; vs < ve; vs++) {
+    if (!gola_isgotolabel(vs)) {
+      GCstr *s = strref(vs->name);
+      BCPos startpc;
+      if ((uintptr_t)s < VARNAME__MAX) {
+	fs_buf_need(ls, 1 + 2*5);
+	ls->sb.buf[ls->sb.n++] = (uint8_t)(uintptr_t)s;
+      } else {
+	MSize len = s->len+1;
+	fs_buf_need(ls, len + 2*5);
+	fs_buf_str(ls, strdata(s), len);
+      }
+      startpc = vs->startpc;
+      fs_buf_uleb128(ls, startpc-lastpc);
+      fs_buf_uleb128(ls, vs->endpc-startpc);
+      lastpc = startpc;
+    }
+  }
+  fs_buf_need(ls, 1);
+  ls->sb.buf[ls->sb.n++] = '\0';  /* Terminator for varinfo. */
+  return ls->sb.n;
+}
+
+/* Fixup variable info for prototype. */
+static void fs_fixup_var(LexState *ls, GCproto *pt, uint8_t *p, size_t ofsvar)
+{
+  setmref(pt->uvinfo, p);
+  setmref(pt->varinfo, (char *)p + ofsvar);
+  memcpy(p, ls->sb.buf, ls->sb.n);  /* Copy from temp. string buffer. */
+}
+#else
+
+/* Initialize with empty debug info, if disabled. */
+#define fs_prep_line(fs, numline)		(UNUSED(numline), 0)
+#define fs_fixup_line(fs, pt, li, numline) \
+  pt->firstline = pt->numline = 0, setmref((pt)->lineinfo, NULL)
+#define fs_prep_var(ls, fs, ofsvar)		(UNUSED(ofsvar), 0)
+#define fs_fixup_var(ls, pt, p, ofsvar) \
+  setmref((pt)->uvinfo, NULL), setmref((pt)->varinfo, NULL)
+
+#endif
+
+/* Check if bytecode op returns. */
+static int bcopisret(BCOp op)
+{
+  switch (op) {
+  case BC_CALLMT: case BC_CALLT:
+  case BC_RETM: case BC_RET: case BC_RET0: case BC_RET1:
+    return 1;
+  default:
+    return 0;
+  }
+}
+
+/* Fixup return instruction for prototype. */
+static void fs_fixup_ret(FuncState *fs)
+{
+  BCPos lastpc = fs->pc;
+  if (lastpc <= fs->lasttarget || !bcopisret(bc_op(fs->bcbase[lastpc-1].ins))) {
+    if ((fs->bl->flags & FSCOPE_UPVAL))
+      bcemit_AJ(fs, BC_UCLO, 0, 0);
+    bcemit_AD(fs, BC_RET0, 0, 1);  /* Need final return. */
+  }
+  fs->bl->flags |= FSCOPE_NOCLOSE;  /* Handled above. */
+  fscope_end(fs);
+  lua_assert(fs->bl == NULL);
+  /* May need to fixup returns encoded before first function was created. */
+  if (fs->flags & PROTO_FIXUP_RETURN) {
+    BCPos pc;
+    for (pc = 1; pc < lastpc; pc++) {
+      BCIns ins = fs->bcbase[pc].ins;
+      BCPos offset;
+      switch (bc_op(ins)) {
+      case BC_CALLMT: case BC_CALLT:
+      case BC_RETM: case BC_RET: case BC_RET0: case BC_RET1:
+	offset = bcemit_INS(fs, ins);  /* Copy original instruction. */
+	fs->bcbase[offset].line = fs->bcbase[pc].line;
+	offset = offset-(pc+1)+BCBIAS_J;
+	if (offset > BCMAX_D)
+	  err_syntax(fs->ls, LJ_ERR_XFIXUP);
+	/* Replace with UCLO plus branch. */
+	fs->bcbase[pc].ins = BCINS_AD(BC_UCLO, 0, offset);
+	break;
+      case BC_UCLO:
+	return;  /* We're done. */
+      default:
+	break;
+      }
+    }
+  }
+}
+
+/* Finish a FuncState and return the new prototype. */
+static GCproto *fs_finish(LexState *ls, BCLine line)
+{
+  lua_State *L = ls->L;
+  FuncState *fs = ls->fs;
+  BCLine numline = line - fs->linedefined;
+  size_t sizept, ofsk, ofsuv, ofsli, ofsdbg, ofsvar;
+  GCproto *pt;
+
+  /* Apply final fixups. */
+  fs_fixup_ret(fs);
+
+  /* Calculate total size of prototype including all colocated arrays. */
+  sizept = sizeof(GCproto) + fs->pc*sizeof(BCIns) + fs->nkgc*sizeof(GCRef);
+  sizept = (sizept + sizeof(TValue)-1) & ~(sizeof(TValue)-1);
+  ofsk = sizept; sizept += fs->nkn*sizeof(TValue);
+  ofsuv = sizept; sizept += ((fs->nuv+1)&~1)*2;
+  ofsli = sizept; sizept += fs_prep_line(fs, numline);
+  ofsdbg = sizept; sizept += fs_prep_var(ls, fs, &ofsvar);
+
+  /* Allocate prototype and initialize its fields. */
+  pt = (GCproto *)lj_mem_newgco(L, (MSize)sizept);
+  pt->gct = ~LJ_TPROTO;
+  pt->sizept = (MSize)sizept;
+  pt->trace = 0;
+  pt->flags = (uint8_t)(fs->flags & ~(PROTO_HAS_RETURN|PROTO_FIXUP_RETURN));
+  pt->numparams = fs->numparams;
+  pt->framesize = fs->framesize;
+  setgcref(pt->chunkname, obj2gco(ls->chunkname));
+
+  /* Close potentially uninitialized gap between bc and kgc. */
+  *(uint32_t *)((char *)pt + ofsk - sizeof(GCRef)*(fs->nkgc+1)) = 0;
+  fs_fixup_bc(fs, pt, (BCIns *)((char *)pt + sizeof(GCproto)), fs->pc);
+  fs_fixup_k(fs, pt, (void *)((char *)pt + ofsk));
+  fs_fixup_uv1(fs, pt, (uint16_t *)((char *)pt + ofsuv));
+  fs_fixup_line(fs, pt, (void *)((char *)pt + ofsli), numline);
+  fs_fixup_var(ls, pt, (uint8_t *)((char *)pt + ofsdbg), ofsvar);
+
+  lj_vmevent_send(L, BC,
+    setprotoV(L, L->top++, pt);
+  );
+
+  L->top--;  /* Pop table of constants. */
+  ls->vtop = fs->vbase;  /* Reset variable stack. */
+  ls->fs = fs->prev;
+  lua_assert(ls->fs != NULL || ls->token == TK_eof);
+  return pt;
+}
+
+/* Initialize a new FuncState. */
+static void fs_init(LexState *ls, FuncState *fs)
+{
+  lua_State *L = ls->L;
+  fs->prev = ls->fs; ls->fs = fs;  /* Append to list. */
+  fs->ls = ls;
+  fs->vbase = ls->vtop;
+  fs->L = L;
+  fs->pc = 0;
+  fs->lasttarget = 0;
+  fs->jpc = NO_JMP;
+  fs->freereg = 0;
+  fs->nkgc = 0;
+  fs->nkn = 0;
+  fs->nactvar = 0;
+  fs->nuv = 0;
+  fs->bl = NULL;
+  fs->flags = 0;
+  fs->framesize = 1;  /* Minimum frame size. */
+  fs->kt = lj_tab_new(L, 0, 0);
+  /* Anchor table of constants in stack to avoid being collected. */
+  settabV(L, L->top, fs->kt);
+  incr_top(L);
+}
+
+/* -- Expressions --------------------------------------------------------- */
+
+/* Forward declaration. */
+static void expr(LexState *ls, ExpDesc *v);
+
+/* Return string expression. */
+static void expr_str(LexState *ls, ExpDesc *e)
+{
+  expr_init(e, VKSTR, 0);
+  e->u.sval = lex_str(ls);
+}
+
+/* Return index expression. */
+static void expr_index(FuncState *fs, ExpDesc *t, ExpDesc *e)
+{
+  /* Already called: expr_toval(fs, e). */
+  t->k = VINDEXED;
+  if (expr_isnumk(e)) {
+#if LJ_DUALNUM
+    if (tvisint(expr_numtv(e))) {
+      int32_t k = intV(expr_numtv(e));
+      if (checku8(k)) {
+	t->u.s.aux = BCMAX_C+1+(uint32_t)k;  /* 256..511: const byte key */
+	return;
+      }
+    }
+#else
+    lua_Number n = expr_numberV(e);
+    int32_t k = lj_num2int(n);
+    if (checku8(k) && n == (lua_Number)k) {
+      t->u.s.aux = BCMAX_C+1+(uint32_t)k;  /* 256..511: const byte key */
+      return;
+    }
+#endif
+  } else if (expr_isstrk(e)) {
+    BCReg idx = const_str(fs, e);
+    if (idx <= BCMAX_C) {
+      t->u.s.aux = ~idx;  /* -256..-1: const string key */
+      return;
+    }
+  }
+  t->u.s.aux = expr_toanyreg(fs, e);  /* 0..255: register */
+}
+
+/* Parse index expression with named field. */
+static void expr_field(LexState *ls, ExpDesc *v)
+{
+  FuncState *fs = ls->fs;
+  ExpDesc key;
+  expr_toanyreg(fs, v);
+  lj_lex_next(ls);  /* Skip dot or colon. */
+  expr_str(ls, &key);
+  expr_index(fs, v, &key);
+}
+
+/* Parse index expression with brackets. */
+static void expr_bracket(LexState *ls, ExpDesc *v)
+{
+  lj_lex_next(ls);  /* Skip '['. */
+  expr(ls, v);
+  expr_toval(ls->fs, v);
+  lex_check(ls, ']');
+}
+
+/* Get value of constant expression. */
+static void expr_kvalue(TValue *v, ExpDesc *e)
+{
+  if (e->k <= VKTRUE) {
+    setitype(v, ~(uint32_t)e->k);
+  } else if (e->k == VKSTR) {
+    setgcref(v->gcr, obj2gco(e->u.sval));
+    setitype(v, LJ_TSTR);
+  } else {
+    lua_assert(tvisnumber(expr_numtv(e)));
+    *v = *expr_numtv(e);
+  }
+}
+
+/* Parse table constructor expression. */
+static void expr_table(LexState *ls, ExpDesc *e)
+{
+  FuncState *fs = ls->fs;
+  BCLine line = ls->linenumber;
+  GCtab *t = NULL;
+  int vcall = 0, needarr = 0, fixt = 0;
+  uint32_t narr = 1;  /* First array index. */
+  uint32_t nhash = 0;  /* Number of hash entries. */
+  BCReg freg = fs->freereg;
+  BCPos pc = bcemit_AD(fs, BC_TNEW, freg, 0);
+  expr_init(e, VNONRELOC, freg);
+  bcreg_reserve(fs, 1);
+  freg++;
+  lex_check(ls, '{');
+  while (ls->token != '}') {
+    ExpDesc key, val;
+    vcall = 0;
+    if (ls->token == '[') {
+      expr_bracket(ls, &key);  /* Already calls expr_toval. */
+      if (!expr_isk(&key)) expr_index(fs, e, &key);
+      if (expr_isnumk(&key) && expr_numiszero(&key)) needarr = 1; else nhash++;
+      lex_check(ls, '=');
+    } else if ((ls->token == TK_name || (!LJ_52 && ls->token == TK_goto)) &&
+	       lj_lex_lookahead(ls) == '=') {
+      expr_str(ls, &key);
+      lex_check(ls, '=');
+      nhash++;
+    } else {
+      expr_init(&key, VKNUM, 0);
+      setintV(&key.u.nval, (int)narr);
+      narr++;
+      needarr = vcall = 1;
+    }
+    expr(ls, &val);
+    if (expr_isk(&key) && key.k != VKNIL &&
+	(key.k == VKSTR || expr_isk_nojump(&val))) {
+      TValue k, *v;
+      if (!t) {  /* Create template table on demand. */
+	BCReg kidx;
+	t = lj_tab_new(fs->L, needarr ? narr : 0, hsize2hbits(nhash));
+	kidx = const_gc(fs, obj2gco(t), LJ_TTAB);
+	fs->bcbase[pc].ins = BCINS_AD(BC_TDUP, freg-1, kidx);
+      }
+      vcall = 0;
+      expr_kvalue(&k, &key);
+      v = lj_tab_set(fs->L, t, &k);
+      lj_gc_anybarriert(fs->L, t);
+      if (expr_isk_nojump(&val)) {  /* Add const key/value to template table. */
+	expr_kvalue(v, &val);
+      } else {  /* Otherwise create dummy string key (avoids lj_tab_newkey). */
+	settabV(fs->L, v, t);  /* Preserve key with table itself as value. */
+	fixt = 1;   /* Fix this later, after all resizes. */
+	goto nonconst;
+      }
+    } else {
+    nonconst:
+      if (val.k != VCALL) { expr_toanyreg(fs, &val); vcall = 0; }
+      if (expr_isk(&key)) expr_index(fs, e, &key);
+      bcemit_store(fs, e, &val);
+    }
+    fs->freereg = freg;
+    if (!lex_opt(ls, ',') && !lex_opt(ls, ';')) break;
+  }
+  lex_match(ls, '}', '{', line);
+  if (vcall) {
+    BCInsLine *ilp = &fs->bcbase[fs->pc-1];
+    ExpDesc en;
+    lua_assert(bc_a(ilp->ins) == freg &&
+	       bc_op(ilp->ins) == (narr > 256 ? BC_TSETV : BC_TSETB));
+    expr_init(&en, VKNUM, 0);
+    en.u.nval.u32.lo = narr-1;
+    en.u.nval.u32.hi = 0x43300000;  /* Biased integer to avoid denormals. */
+    if (narr > 256) { fs->pc--; ilp--; }
+    ilp->ins = BCINS_AD(BC_TSETM, freg, const_num(fs, &en));
+    setbc_b(&ilp[-1].ins, 0);
+  }
+  if (pc == fs->pc-1) {  /* Make expr relocable if possible. */
+    e->u.s.info = pc;
+    fs->freereg--;
+    e->k = VRELOCABLE;
+  } else {
+    e->k = VNONRELOC;  /* May have been changed by expr_index. */
+  }
+  if (!t) {  /* Construct TNEW RD: hhhhhaaaaaaaaaaa. */
+    BCIns *ip = &fs->bcbase[pc].ins;
+    if (!needarr) narr = 0;
+    else if (narr < 3) narr = 3;
+    else if (narr > 0x7ff) narr = 0x7ff;
+    setbc_d(ip, narr|(hsize2hbits(nhash)<<11));
+  } else {
+    if (needarr && t->asize < narr)
+      lj_tab_reasize(fs->L, t, narr-1);
+    if (fixt) {  /* Fix value for dummy keys in template table. */
+      Node *node = noderef(t->node);
+      uint32_t i, hmask = t->hmask;
+      for (i = 0; i <= hmask; i++) {
+	Node *n = &node[i];
+	if (tvistab(&n->val)) {
+	  lua_assert(tabV(&n->val) == t);
+	  setnilV(&n->val);  /* Turn value into nil. */
+	}
+      }
+    }
+    lj_gc_check(fs->L);
+  }
+}
+
+/* Parse function parameters. */
+static BCReg parse_params(LexState *ls, int needself)
+{
+  FuncState *fs = ls->fs;
+  BCReg nparams = 0;
+  lex_check(ls, '(');
+  if (needself)
+    var_new_lit(ls, nparams++, "self");
+  if (ls->token != ')') {
+    do {
+      if (ls->token == TK_name || (!LJ_52 && ls->token == TK_goto)) {
+	var_new(ls, nparams++, lex_str(ls));
+      } else if (ls->token == TK_dots) {
+	lj_lex_next(ls);
+	fs->flags |= PROTO_VARARG;
+	break;
+      } else {
+	err_syntax(ls, LJ_ERR_XPARAM);
+      }
+    } while (lex_opt(ls, ','));
+  }
+  var_add(ls, nparams);
+  lua_assert(fs->nactvar == nparams);
+  bcreg_reserve(fs, nparams);
+  lex_check(ls, ')');
+  return nparams;
+}
+
+/* Forward declaration. */
+static void parse_chunk(LexState *ls);
+
+/* Parse body of a function. */
+static void parse_body(LexState *ls, ExpDesc *e, int needself, BCLine line)
+{
+  FuncState fs, *pfs = ls->fs;
+  FuncScope bl;
+  GCproto *pt;
+  ptrdiff_t oldbase = pfs->bcbase - ls->bcstack;
+  fs_init(ls, &fs);
+  fscope_begin(&fs, &bl, 0);
+  fs.linedefined = line;
+  fs.numparams = (uint8_t)parse_params(ls, needself);
+  fs.bcbase = pfs->bcbase + pfs->pc;
+  fs.bclim = pfs->bclim - pfs->pc;
+  bcemit_AD(&fs, BC_FUNCF, 0, 0);  /* Placeholder. */
+  parse_chunk(ls);
+  if (ls->token != TK_end) lex_match(ls, TK_end, TK_function, line);
+  pt = fs_finish(ls, (ls->lastline = ls->linenumber));
+  pfs->bcbase = ls->bcstack + oldbase;  /* May have been reallocated. */
+  pfs->bclim = (BCPos)(ls->sizebcstack - oldbase);
+  /* Store new prototype in the constant array of the parent. */
+  expr_init(e, VRELOCABLE,
+	    bcemit_AD(pfs, BC_FNEW, 0, const_gc(pfs, obj2gco(pt), LJ_TPROTO)));
+#if LJ_HASFFI
+  pfs->flags |= (fs.flags & PROTO_FFI);
+#endif
+  if (!(pfs->flags & PROTO_CHILD)) {
+    if (pfs->flags & PROTO_HAS_RETURN)
+      pfs->flags |= PROTO_FIXUP_RETURN;
+    pfs->flags |= PROTO_CHILD;
+  }
+  lj_lex_next(ls);
+}
+
+/* Parse expression list. Last expression is left open. */
+static BCReg expr_list(LexState *ls, ExpDesc *v)
+{
+  BCReg n = 1;
+  expr(ls, v);
+  while (lex_opt(ls, ',')) {
+    expr_tonextreg(ls->fs, v);
+    expr(ls, v);
+    n++;
+  }
+  return n;
+}
+
+/* Parse function argument list. */
+static void parse_args(LexState *ls, ExpDesc *e)
+{
+  FuncState *fs = ls->fs;
+  ExpDesc args;
+  BCIns ins;
+  BCReg base;
+  BCLine line = ls->linenumber;
+  if (ls->token == '(') {
+#if !LJ_52
+    if (line != ls->lastline)
+      err_syntax(ls, LJ_ERR_XAMBIG);
+#endif
+    lj_lex_next(ls);
+    if (ls->token == ')') {  /* f(). */
+      args.k = VVOID;
+    } else {
+      expr_list(ls, &args);
+      if (args.k == VCALL)  /* f(a, b, g()) or f(a, b, ...). */
+	setbc_b(bcptr(fs, &args), 0);  /* Pass on multiple results. */
+    }
+    lex_match(ls, ')', '(', line);
+  } else if (ls->token == '{') {
+    expr_table(ls, &args);
+  } else if (ls->token == TK_string) {
+    expr_init(&args, VKSTR, 0);
+    args.u.sval = strV(&ls->tokenval);
+    lj_lex_next(ls);
+  } else {
+    err_syntax(ls, LJ_ERR_XFUNARG);
+    return;  /* Silence compiler. */
+  }
+  lua_assert(e->k == VNONRELOC);
+  base = e->u.s.info;  /* Base register for call. */
+  if (args.k == VCALL) {
+    ins = BCINS_ABC(BC_CALLM, base, 2, args.u.s.aux - base - 1);
+  } else {
+    if (args.k != VVOID)
+      expr_tonextreg(fs, &args);
+    ins = BCINS_ABC(BC_CALL, base, 2, fs->freereg - base);
+  }
+  expr_init(e, VCALL, bcemit_INS(fs, ins));
+  e->u.s.aux = base;
+  fs->bcbase[fs->pc - 1].line = line;
+  fs->freereg = base+1;  /* Leave one result by default. */
+}
+
+/* Parse primary expression. */
+static void expr_primary(LexState *ls, ExpDesc *v)
+{
+  FuncState *fs = ls->fs;
+  /* Parse prefix expression. */
+  if (ls->token == '(') {
+    BCLine line = ls->linenumber;
+    lj_lex_next(ls);
+    expr(ls, v);
+    lex_match(ls, ')', '(', line);
+    expr_discharge(ls->fs, v);
+  } else if (ls->token == TK_name || (!LJ_52 && ls->token == TK_goto)) {
+    var_lookup(ls, v);
+  } else {
+    err_syntax(ls, LJ_ERR_XSYMBOL);
+  }
+  for (;;) {  /* Parse multiple expression suffixes. */
+    if (ls->token == '.') {
+      expr_field(ls, v);
+    } else if (ls->token == '[') {
+      ExpDesc key;
+      expr_toanyreg(fs, v);
+      expr_bracket(ls, &key);
+      expr_index(fs, v, &key);
+    } else if (ls->token == ':') {
+      ExpDesc key;
+      lj_lex_next(ls);
+      expr_str(ls, &key);
+      bcemit_method(fs, v, &key);
+      parse_args(ls, v);
+    } else if (ls->token == '(' || ls->token == TK_string || ls->token == '{') {
+      expr_tonextreg(fs, v);
+      parse_args(ls, v);
+    } else {
+      break;
+    }
+  }
+}
+
+/* Parse simple expression. */
+static void expr_simple(LexState *ls, ExpDesc *v)
+{
+  switch (ls->token) {
+  case TK_number:
+    expr_init(v, (LJ_HASFFI && tviscdata(&ls->tokenval)) ? VKCDATA : VKNUM, 0);
+    copyTV(ls->L, &v->u.nval, &ls->tokenval);
+    break;
+  case TK_string:
+    expr_init(v, VKSTR, 0);
+    v->u.sval = strV(&ls->tokenval);
+    break;
+  case TK_nil:
+    expr_init(v, VKNIL, 0);
+    break;
+  case TK_true:
+    expr_init(v, VKTRUE, 0);
+    break;
+  case TK_false:
+    expr_init(v, VKFALSE, 0);
+    break;
+  case TK_dots: {  /* Vararg. */
+    FuncState *fs = ls->fs;
+    BCReg base;
+    checkcond(ls, fs->flags & PROTO_VARARG, LJ_ERR_XDOTS);
+    bcreg_reserve(fs, 1);
+    base = fs->freereg-1;
+    expr_init(v, VCALL, bcemit_ABC(fs, BC_VARG, base, 2, fs->numparams));
+    v->u.s.aux = base;
+    break;
+  }
+  case '{':  /* Table constructor. */
+    expr_table(ls, v);
+    return;
+  case TK_function:
+    lj_lex_next(ls);
+    parse_body(ls, v, 0, ls->linenumber);
+    return;
+  default:
+    expr_primary(ls, v);
+    return;
+  }
+  lj_lex_next(ls);
+}
+
+/* Manage syntactic levels to avoid blowing up the stack. */
+static void synlevel_begin(LexState *ls)
+{
+  if (++ls->level >= LJ_MAX_XLEVEL)
+    lj_lex_error(ls, 0, LJ_ERR_XLEVELS);
+}
+
+#define synlevel_end(ls)	((ls)->level--)
+
+/* Convert token to binary operator. */
+static BinOpr token2binop(LexToken tok)
+{
+  switch (tok) {
+  case '+':	return OPR_ADD;
+  case '-':	return OPR_SUB;
+  case '*':	return OPR_MUL;
+  case '/':	return OPR_DIV;
+  case '%':	return OPR_MOD;
+  case '^':	return OPR_POW;
+  case TK_concat: return OPR_CONCAT;
+  case TK_ne:	return OPR_NE;
+  case TK_eq:	return OPR_EQ;
+  case '<':	return OPR_LT;
+  case TK_le:	return OPR_LE;
+  case '>':	return OPR_GT;
+  case TK_ge:	return OPR_GE;
+  case TK_and:	return OPR_AND;
+  case TK_or:	return OPR_OR;
+  default:	return OPR_NOBINOPR;
+  }
+}
+
+/* Priorities for each binary operator. ORDER OPR. */
+static const struct {
+  uint8_t left;		/* Left priority. */
+  uint8_t right;	/* Right priority. */
+} priority[] = {
+  {6,6}, {6,6}, {7,7}, {7,7}, {7,7},	/* ADD SUB MUL DIV MOD */
+  {10,9}, {5,4},			/* POW CONCAT (right associative) */
+  {3,3}, {3,3},				/* EQ NE */
+  {3,3}, {3,3}, {3,3}, {3,3},		/* LT GE GT LE */
+  {2,2}, {1,1}				/* AND OR */
+};
+
+#define UNARY_PRIORITY		8  /* Priority for unary operators. */
+
+/* Forward declaration. */
+static BinOpr expr_binop(LexState *ls, ExpDesc *v, uint32_t limit);
+
+/* Parse unary expression. */
+static void expr_unop(LexState *ls, ExpDesc *v)
+{
+  BCOp op;
+  if (ls->token == TK_not) {
+    op = BC_NOT;
+  } else if (ls->token == '-') {
+    op = BC_UNM;
+  } else if (ls->token == '#') {
+    op = BC_LEN;
+  } else {
+    expr_simple(ls, v);
+    return;
+  }
+  lj_lex_next(ls);
+  expr_binop(ls, v, UNARY_PRIORITY);
+  bcemit_unop(ls->fs, op, v);
+}
+
+/* Parse binary expressions with priority higher than the limit. */
+static BinOpr expr_binop(LexState *ls, ExpDesc *v, uint32_t limit)
+{
+  BinOpr op;
+  synlevel_begin(ls);
+  expr_unop(ls, v);
+  op = token2binop(ls->token);
+  while (op != OPR_NOBINOPR && priority[op].left > limit) {
+    ExpDesc v2;
+    BinOpr nextop;
+    lj_lex_next(ls);
+    bcemit_binop_left(ls->fs, op, v);
+    /* Parse binary expression with higher priority. */
+    nextop = expr_binop(ls, &v2, priority[op].right);
+    bcemit_binop(ls->fs, op, v, &v2);
+    op = nextop;
+  }
+  synlevel_end(ls);
+  return op;  /* Return unconsumed binary operator (if any). */
+}
+
+/* Parse expression. */
+static void expr(LexState *ls, ExpDesc *v)
+{
+  expr_binop(ls, v, 0);  /* Priority 0: parse whole expression. */
+}
+
+/* Assign expression to the next register. */
+static void expr_next(LexState *ls)
+{
+  ExpDesc e;
+  expr(ls, &e);
+  expr_tonextreg(ls->fs, &e);
+}
+
+/* Parse conditional expression. */
+static BCPos expr_cond(LexState *ls)
+{
+  ExpDesc v;
+  expr(ls, &v);
+  if (v.k == VKNIL) v.k = VKFALSE;
+  bcemit_branch_t(ls->fs, &v);
+  return v.f;
+}
+
+/* -- Assignments --------------------------------------------------------- */
+
+/* List of LHS variables. */
+typedef struct LHSVarList {
+  ExpDesc v;			/* LHS variable. */
+  struct LHSVarList *prev;	/* Link to previous LHS variable. */
+} LHSVarList;
+
+/* Eliminate write-after-read hazards for local variable assignment. */
+static void assign_hazard(LexState *ls, LHSVarList *lh, const ExpDesc *v)
+{
+  FuncState *fs = ls->fs;
+  BCReg reg = v->u.s.info;  /* Check against this variable. */
+  BCReg tmp = fs->freereg;  /* Rename to this temp. register (if needed). */
+  int hazard = 0;
+  for (; lh; lh = lh->prev) {
+    if (lh->v.k == VINDEXED) {
+      if (lh->v.u.s.info == reg) {  /* t[i], t = 1, 2 */
+	hazard = 1;
+	lh->v.u.s.info = tmp;
+      }
+      if (lh->v.u.s.aux == reg) {  /* t[i], i = 1, 2 */
+	hazard = 1;
+	lh->v.u.s.aux = tmp;
+      }
+    }
+  }
+  if (hazard) {
+    bcemit_AD(fs, BC_MOV, tmp, reg);  /* Rename conflicting variable. */
+    bcreg_reserve(fs, 1);
+  }
+}
+
+/* Adjust LHS/RHS of an assignment. */
+static void assign_adjust(LexState *ls, BCReg nvars, BCReg nexps, ExpDesc *e)
+{
+  FuncState *fs = ls->fs;
+  int32_t extra = (int32_t)nvars - (int32_t)nexps;
+  if (e->k == VCALL) {
+    extra++;  /* Compensate for the VCALL itself. */
+    if (extra < 0) extra = 0;
+    setbc_b(bcptr(fs, e), extra+1);  /* Fixup call results. */
+    if (extra > 1) bcreg_reserve(fs, (BCReg)extra-1);
+  } else {
+    if (e->k != VVOID)
+      expr_tonextreg(fs, e);  /* Close last expression. */
+    if (extra > 0) {  /* Leftover LHS are set to nil. */
+      BCReg reg = fs->freereg;
+      bcreg_reserve(fs, (BCReg)extra);
+      bcemit_nil(fs, reg, (BCReg)extra);
+    }
+  }
+}
+
+/* Recursively parse assignment statement. */
+static void parse_assignment(LexState *ls, LHSVarList *lh, BCReg nvars)
+{
+  ExpDesc e;
+  checkcond(ls, VLOCAL <= lh->v.k && lh->v.k <= VINDEXED, LJ_ERR_XSYNTAX);
+  if (lex_opt(ls, ',')) {  /* Collect LHS list and recurse upwards. */
+    LHSVarList vl;
+    vl.prev = lh;
+    expr_primary(ls, &vl.v);
+    if (vl.v.k == VLOCAL)
+      assign_hazard(ls, lh, &vl.v);
+    checklimit(ls->fs, ls->level + nvars, LJ_MAX_XLEVEL, "variable names");
+    parse_assignment(ls, &vl, nvars+1);
+  } else {  /* Parse RHS. */
+    BCReg nexps;
+    lex_check(ls, '=');
+    nexps = expr_list(ls, &e);
+    if (nexps == nvars) {
+      if (e.k == VCALL) {
+	if (bc_op(*bcptr(ls->fs, &e)) == BC_VARG) {  /* Vararg assignment. */
+	  ls->fs->freereg--;
+	  e.k = VRELOCABLE;
+	} else {  /* Multiple call results. */
+	  e.u.s.info = e.u.s.aux;  /* Base of call is not relocatable. */
+	  e.k = VNONRELOC;
+	}
+      }
+      bcemit_store(ls->fs, &lh->v, &e);
+      return;
+    }
+    assign_adjust(ls, nvars, nexps, &e);
+    if (nexps > nvars)
+      ls->fs->freereg -= nexps - nvars;  /* Drop leftover regs. */
+  }
+  /* Assign RHS to LHS and recurse downwards. */
+  expr_init(&e, VNONRELOC, ls->fs->freereg-1);
+  bcemit_store(ls->fs, &lh->v, &e);
+}
+
+/* Parse call statement or assignment. */
+static void parse_call_assign(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  LHSVarList vl;
+  expr_primary(ls, &vl.v);
+  if (vl.v.k == VCALL) {  /* Function call statement. */
+    setbc_b(bcptr(fs, &vl.v), 1);  /* No results. */
+  } else {  /* Start of an assignment. */
+    vl.prev = NULL;
+    parse_assignment(ls, &vl, 1);
+  }
+}
+
+/* Parse 'local' statement. */
+static void parse_local(LexState *ls)
+{
+  if (lex_opt(ls, TK_function)) {  /* Local function declaration. */
+    ExpDesc v, b;
+    FuncState *fs = ls->fs;
+    var_new(ls, 0, lex_str(ls));
+    expr_init(&v, VLOCAL, fs->freereg);
+    v.u.s.aux = fs->varmap[fs->freereg];
+    bcreg_reserve(fs, 1);
+    var_add(ls, 1);
+    parse_body(ls, &b, 0, ls->linenumber);
+    /* bcemit_store(fs, &v, &b) without setting VSTACK_VAR_RW. */
+    expr_free(fs, &b);
+    expr_toreg(fs, &b, v.u.s.info);
+    /* The upvalue is in scope, but the local is only valid after the store. */
+    var_get(ls, fs, fs->nactvar - 1).startpc = fs->pc;
+  } else {  /* Local variable declaration. */
+    ExpDesc e;
+    BCReg nexps, nvars = 0;
+    do {  /* Collect LHS. */
+      var_new(ls, nvars++, lex_str(ls));
+    } while (lex_opt(ls, ','));
+    if (lex_opt(ls, '=')) {  /* Optional RHS. */
+      nexps = expr_list(ls, &e);
+    } else {  /* Or implicitly set to nil. */
+      e.k = VVOID;
+      nexps = 0;
+    }
+    assign_adjust(ls, nvars, nexps, &e);
+    var_add(ls, nvars);
+  }
+}
+
+/* Parse 'function' statement. */
+static void parse_func(LexState *ls, BCLine line)
+{
+  FuncState *fs;
+  ExpDesc v, b;
+  int needself = 0;
+  lj_lex_next(ls);  /* Skip 'function'. */
+  /* Parse function name. */
+  var_lookup(ls, &v);
+  while (ls->token == '.')  /* Multiple dot-separated fields. */
+    expr_field(ls, &v);
+  if (ls->token == ':') {  /* Optional colon to signify method call. */
+    needself = 1;
+    expr_field(ls, &v);
+  }
+  parse_body(ls, &b, needself, line);
+  fs = ls->fs;
+  bcemit_store(fs, &v, &b);
+  fs->bcbase[fs->pc - 1].line = line;  /* Set line for the store. */
+}
+
+/* -- Control transfer statements ----------------------------------------- */
+
+/* Check for end of block. */
+static int endofblock(LexToken token)
+{
+  switch (token) {
+  case TK_else: case TK_elseif: case TK_end: case TK_until: case TK_eof:
+    return 1;
+  default:
+    return 0;
+  }
+}
+
+/* Parse 'return' statement. */
+static void parse_return(LexState *ls)
+{
+  BCIns ins;
+  FuncState *fs = ls->fs;
+  lj_lex_next(ls);  /* Skip 'return'. */
+  fs->flags |= PROTO_HAS_RETURN;
+  if (endofblock(ls->token) || ls->token == ';') {  /* Bare return. */
+    ins = BCINS_AD(BC_RET0, 0, 1);
+  } else {  /* Return with one or more values. */
+    ExpDesc e;  /* Receives the _last_ expression in the list. */
+    BCReg nret = expr_list(ls, &e);
+    if (nret == 1) {  /* Return one result. */
+      if (e.k == VCALL) {  /* Check for tail call. */
+	BCIns *ip = bcptr(fs, &e);
+	/* It doesn't pay off to add BC_VARGT just for 'return ...'. */
+	if (bc_op(*ip) == BC_VARG) goto notailcall;
+	fs->pc--;
+	ins = BCINS_AD(bc_op(*ip)-BC_CALL+BC_CALLT, bc_a(*ip), bc_c(*ip));
+      } else {  /* Can return the result from any register. */
+	ins = BCINS_AD(BC_RET1, expr_toanyreg(fs, &e), 2);
+      }
+    } else {
+      if (e.k == VCALL) {  /* Append all results from a call. */
+      notailcall:
+	setbc_b(bcptr(fs, &e), 0);
+	ins = BCINS_AD(BC_RETM, fs->nactvar, e.u.s.aux - fs->nactvar);
+      } else {
+	expr_tonextreg(fs, &e);  /* Force contiguous registers. */
+	ins = BCINS_AD(BC_RET, fs->nactvar, nret+1);
+      }
+    }
+  }
+  if (fs->flags & PROTO_CHILD)
+    bcemit_AJ(fs, BC_UCLO, 0, 0);  /* May need to close upvalues first. */
+  bcemit_INS(fs, ins);
+}
+
+/* Parse 'break' statement. */
+static void parse_break(LexState *ls)
+{
+  ls->fs->bl->flags |= FSCOPE_BREAK;
+  gola_new(ls, NAME_BREAK, VSTACK_GOTO, bcemit_jmp(ls->fs));
+}
+
+/* Parse 'goto' statement. */
+static void parse_goto(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  GCstr *name = lex_str(ls);
+  VarInfo *vl = gola_findlabel(ls, name);
+  if (vl)  /* Treat backwards goto within same scope like a loop. */
+    bcemit_AJ(fs, BC_LOOP, vl->slot, -1);  /* No BC range check. */
+  fs->bl->flags |= FSCOPE_GOLA;
+  gola_new(ls, name, VSTACK_GOTO, bcemit_jmp(fs));
+}
+
+/* Parse label. */
+static void parse_label(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  GCstr *name;
+  MSize idx;
+  fs->lasttarget = fs->pc;
+  fs->bl->flags |= FSCOPE_GOLA;
+  lj_lex_next(ls);  /* Skip '::'. */
+  name = lex_str(ls);
+  if (gola_findlabel(ls, name))
+    lj_lex_error(ls, 0, LJ_ERR_XLDUP, strdata(name));
+  idx = gola_new(ls, name, VSTACK_LABEL, fs->pc);
+  lex_check(ls, TK_label);
+  /* Recursively parse trailing statements: labels and ';' (Lua 5.2 only). */
+  for (;;) {
+    if (ls->token == TK_label) {
+      synlevel_begin(ls);
+      parse_label(ls);
+      synlevel_end(ls);
+    } else if (LJ_52 && ls->token == ';') {
+      lj_lex_next(ls);
+    } else {
+      break;
+    }
+  }
+  /* Trailing label is considered to be outside of scope. */
+  if (endofblock(ls->token) && ls->token != TK_until)
+    ls->vstack[idx].slot = fs->bl->nactvar;
+  gola_resolve(ls, fs->bl, idx);
+}
+
+/* -- Blocks, loops and conditional statements ---------------------------- */
+
+/* Parse a block. */
+static void parse_block(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  FuncScope bl;
+  fscope_begin(fs, &bl, 0);
+  parse_chunk(ls);
+  fscope_end(fs);
+}
+
+/* Parse 'while' statement. */
+static void parse_while(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCPos start, loop, condexit;
+  FuncScope bl;
+  lj_lex_next(ls);  /* Skip 'while'. */
+  start = fs->lasttarget = fs->pc;
+  condexit = expr_cond(ls);
+  fscope_begin(fs, &bl, FSCOPE_LOOP);
+  lex_check(ls, TK_do);
+  loop = bcemit_AD(fs, BC_LOOP, fs->nactvar, 0);
+  parse_block(ls);
+  jmp_patch(fs, bcemit_jmp(fs), start);
+  lex_match(ls, TK_end, TK_while, line);
+  fscope_end(fs);
+  jmp_tohere(fs, condexit);
+  jmp_patchins(fs, loop, fs->pc);
+}
+
+/* Parse 'repeat' statement. */
+static void parse_repeat(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCPos loop = fs->lasttarget = fs->pc;
+  BCPos condexit;
+  FuncScope bl1, bl2;
+  fscope_begin(fs, &bl1, FSCOPE_LOOP);  /* Breakable loop scope. */
+  fscope_begin(fs, &bl2, 0);  /* Inner scope. */
+  lj_lex_next(ls);  /* Skip 'repeat'. */
+  bcemit_AD(fs, BC_LOOP, fs->nactvar, 0);
+  parse_chunk(ls);
+  lex_match(ls, TK_until, TK_repeat, line);
+  condexit = expr_cond(ls);  /* Parse condition (still inside inner scope). */
+  if (!(bl2.flags & FSCOPE_UPVAL)) {  /* No upvalues? Just end inner scope. */
+    fscope_end(fs);
+  } else {  /* Otherwise generate: cond: UCLO+JMP out, !cond: UCLO+JMP loop. */
+    parse_break(ls);  /* Break from loop and close upvalues. */
+    jmp_tohere(fs, condexit);
+    fscope_end(fs);  /* End inner scope and close upvalues. */
+    condexit = bcemit_jmp(fs);
+  }
+  jmp_patch(fs, condexit, loop);  /* Jump backwards if !cond. */
+  jmp_patchins(fs, loop, fs->pc);
+  fscope_end(fs);  /* End loop scope. */
+}
+
+/* Parse numeric 'for'. */
+static void parse_for_num(LexState *ls, GCstr *varname, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCReg base = fs->freereg;
+  FuncScope bl;
+  BCPos loop, loopend;
+  /* Hidden control variables. */
+  var_new_fixed(ls, FORL_IDX, VARNAME_FOR_IDX);
+  var_new_fixed(ls, FORL_STOP, VARNAME_FOR_STOP);
+  var_new_fixed(ls, FORL_STEP, VARNAME_FOR_STEP);
+  /* Visible copy of index variable. */
+  var_new(ls, FORL_EXT, varname);
+  lex_check(ls, '=');
+  expr_next(ls);
+  lex_check(ls, ',');
+  expr_next(ls);
+  if (lex_opt(ls, ',')) {
+    expr_next(ls);
+  } else {
+    bcemit_AD(fs, BC_KSHORT, fs->freereg, 1);  /* Default step is 1. */
+    bcreg_reserve(fs, 1);
+  }
+  var_add(ls, 3);  /* Hidden control variables. */
+  lex_check(ls, TK_do);
+  loop = bcemit_AJ(fs, BC_FORI, base, NO_JMP);
+  fscope_begin(fs, &bl, 0);  /* Scope for visible variables. */
+  var_add(ls, 1);
+  bcreg_reserve(fs, 1);
+  parse_block(ls);
+  fscope_end(fs);
+  /* Perform loop inversion. Loop control instructions are at the end. */
+  loopend = bcemit_AJ(fs, BC_FORL, base, NO_JMP);
+  fs->bcbase[loopend].line = line;  /* Fix line for control ins. */
+  jmp_patchins(fs, loopend, loop+1);
+  jmp_patchins(fs, loop, fs->pc);
+}
+
+/* Try to predict whether the iterator is next() and specialize the bytecode.
+** Detecting next() and pairs() by name is simplistic, but quite effective.
+** The interpreter backs off if the check for the closure fails at runtime.
+*/
+static int predict_next(LexState *ls, FuncState *fs, BCPos pc)
+{
+  BCIns ins = fs->bcbase[pc].ins;
+  GCstr *name;
+  cTValue *o;
+  switch (bc_op(ins)) {
+  case BC_MOV:
+    name = gco2str(gcref(var_get(ls, fs, bc_d(ins)).name));
+    break;
+  case BC_UGET:
+    name = gco2str(gcref(ls->vstack[fs->uvmap[bc_d(ins)]].name));
+    break;
+  case BC_GGET:
+    /* There's no inverse index (yet), so lookup the strings. */
+    o = lj_tab_getstr(fs->kt, lj_str_newlit(ls->L, "pairs"));
+    if (o && tvhaskslot(o) && tvkslot(o) == bc_d(ins))
+      return 1;
+    o = lj_tab_getstr(fs->kt, lj_str_newlit(ls->L, "next"));
+    if (o && tvhaskslot(o) && tvkslot(o) == bc_d(ins))
+      return 1;
+    return 0;
+  default:
+    return 0;
+  }
+  return (name->len == 5 && !strcmp(strdata(name), "pairs")) ||
+	 (name->len == 4 && !strcmp(strdata(name), "next"));
+}
+
+/* Parse 'for' iterator. */
+static void parse_for_iter(LexState *ls, GCstr *indexname)
+{
+  FuncState *fs = ls->fs;
+  ExpDesc e;
+  BCReg nvars = 0;
+  BCLine line;
+  BCReg base = fs->freereg + 3;
+  BCPos loop, loopend, exprpc = fs->pc;
+  FuncScope bl;
+  int isnext;
+  /* Hidden control variables. */
+  var_new_fixed(ls, nvars++, VARNAME_FOR_GEN);
+  var_new_fixed(ls, nvars++, VARNAME_FOR_STATE);
+  var_new_fixed(ls, nvars++, VARNAME_FOR_CTL);
+  /* Visible variables returned from iterator. */
+  var_new(ls, nvars++, indexname);
+  while (lex_opt(ls, ','))
+    var_new(ls, nvars++, lex_str(ls));
+  lex_check(ls, TK_in);
+  line = ls->linenumber;
+  assign_adjust(ls, 3, expr_list(ls, &e), &e);
+  bcreg_bump(fs, 3);  /* The iterator needs another 3 slots (func + 2 args). */
+  isnext = (nvars <= 5 && predict_next(ls, fs, exprpc));
+  var_add(ls, 3);  /* Hidden control variables. */
+  lex_check(ls, TK_do);
+  loop = bcemit_AJ(fs, isnext ? BC_ISNEXT : BC_JMP, base, NO_JMP);
+  fscope_begin(fs, &bl, 0);  /* Scope for visible variables. */
+  var_add(ls, nvars-3);
+  bcreg_reserve(fs, nvars-3);
+  parse_block(ls);
+  fscope_end(fs);
+  /* Perform loop inversion. Loop control instructions are at the end. */
+  jmp_patchins(fs, loop, fs->pc);
+  bcemit_ABC(fs, isnext ? BC_ITERN : BC_ITERC, base, nvars-3+1, 2+1);
+  loopend = bcemit_AJ(fs, BC_ITERL, base, NO_JMP);
+  fs->bcbase[loopend-1].line = line;  /* Fix line for control ins. */
+  fs->bcbase[loopend].line = line;
+  jmp_patchins(fs, loopend, loop+1);
+}
+
+/* Parse 'for' statement. */
+static void parse_for(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  GCstr *varname;
+  FuncScope bl;
+  fscope_begin(fs, &bl, FSCOPE_LOOP);
+  lj_lex_next(ls);  /* Skip 'for'. */
+  varname = lex_str(ls);  /* Get first variable name. */
+  if (ls->token == '=')
+    parse_for_num(ls, varname, line);
+  else if (ls->token == ',' || ls->token == TK_in)
+    parse_for_iter(ls, varname);
+  else
+    err_syntax(ls, LJ_ERR_XFOR);
+  lex_match(ls, TK_end, TK_for, line);
+  fscope_end(fs);  /* Resolve break list. */
+}
+
+/* Parse condition and 'then' block. */
+static BCPos parse_then(LexState *ls)
+{
+  BCPos condexit;
+  lj_lex_next(ls);  /* Skip 'if' or 'elseif'. */
+  condexit = expr_cond(ls);
+  lex_check(ls, TK_then);
+  parse_block(ls);
+  return condexit;
+}
+
+/* Parse 'if' statement. */
+static void parse_if(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCPos flist;
+  BCPos escapelist = NO_JMP;
+  flist = parse_then(ls);
+  while (ls->token == TK_elseif) {  /* Parse multiple 'elseif' blocks. */
+    jmp_append(fs, &escapelist, bcemit_jmp(fs));
+    jmp_tohere(fs, flist);
+    flist = parse_then(ls);
+  }
+  if (ls->token == TK_else) {  /* Parse optional 'else' block. */
+    jmp_append(fs, &escapelist, bcemit_jmp(fs));
+    jmp_tohere(fs, flist);
+    lj_lex_next(ls);  /* Skip 'else'. */
+    parse_block(ls);
+  } else {
+    jmp_append(fs, &escapelist, flist);
+  }
+  jmp_tohere(fs, escapelist);
+  lex_match(ls, TK_end, TK_if, line);
+}
+
+/* -- Parse statements ---------------------------------------------------- */
+
+/* Parse a statement. Returns 1 if it must be the last one in a chunk. */
+static int parse_stmt(LexState *ls)
+{
+  BCLine line = ls->linenumber;
+  switch (ls->token) {
+  case TK_if:
+    parse_if(ls, line);
+    break;
+  case TK_while:
+    parse_while(ls, line);
+    break;
+  case TK_do:
+    lj_lex_next(ls);
+    parse_block(ls);
+    lex_match(ls, TK_end, TK_do, line);
+    break;
+  case TK_for:
+    parse_for(ls, line);
+    break;
+  case TK_repeat:
+    parse_repeat(ls, line);
+    break;
+  case TK_function:
+    parse_func(ls, line);
+    break;
+  case TK_local:
+    lj_lex_next(ls);
+    parse_local(ls);
+    break;
+  case TK_return:
+    parse_return(ls);
+    return 1;  /* Must be last. */
+  case TK_break:
+    lj_lex_next(ls);
+    parse_break(ls);
+    return !LJ_52;  /* Must be last in Lua 5.1. */
+#if LJ_52
+  case ';':
+    lj_lex_next(ls);
+    break;
+#endif
+  case TK_label:
+    parse_label(ls);
+    break;
+  case TK_goto:
+    if (LJ_52 || lj_lex_lookahead(ls) == TK_name) {
+      lj_lex_next(ls);
+      parse_goto(ls);
+      break;
+    }  /* else: fallthrough */
+  default:
+    parse_call_assign(ls);
+    break;
+  }
+  return 0;
+}
+
+/* A chunk is a list of statements optionally separated by semicolons. */
+static void parse_chunk(LexState *ls)
+{
+  int islast = 0;
+  synlevel_begin(ls);
+  while (!islast && !endofblock(ls->token)) {
+    islast = parse_stmt(ls);
+    lex_opt(ls, ';');
+    lua_assert(ls->fs->framesize >= ls->fs->freereg &&
+	       ls->fs->freereg >= ls->fs->nactvar);
+    ls->fs->freereg = ls->fs->nactvar;  /* Free registers after each stmt. */
+  }
+  synlevel_end(ls);
+}
+
+/* Entry point of bytecode parser. */
+GCproto *lj_parse(LexState *ls)
+{
+  FuncState fs;
+  FuncScope bl;
+  GCproto *pt;
+  lua_State *L = ls->L;
+#ifdef LUAJIT_DISABLE_DEBUGINFO
+  ls->chunkname = lj_str_newlit(L, "=");
+#else
+  ls->chunkname = lj_str_newz(L, ls->chunkarg);
+#endif
+  setstrV(L, L->top, ls->chunkname);  /* Anchor chunkname string. */
+  incr_top(L);
+  ls->level = 0;
+  fs_init(ls, &fs);
+  fs.linedefined = 0;
+  fs.numparams = 0;
+  fs.bcbase = NULL;
+  fs.bclim = 0;
+  fs.flags |= PROTO_VARARG;  /* Main chunk is always a vararg func. */
+  fscope_begin(&fs, &bl, 0);
+  bcemit_AD(&fs, BC_FUNCV, 0, 0);  /* Placeholder. */
+  lj_lex_next(ls);  /* Read-ahead first token. */
+  parse_chunk(ls);
+  if (ls->token != TK_eof)
+    err_token(ls, TK_eof);
+  pt = fs_finish(ls, ls->linenumber);
+  L->top--;  /* Drop chunkname. */
+  lua_assert(fs.prev == NULL);
+  lua_assert(ls->fs == NULL);
+  lua_assert(pt->sizeuv == 0);
+  return pt;
+}
+
diff --git a/lib/luajit/src/lj_parse.h b/lib/luajit/src/lj_parse.h
new file mode 100644
index 00000000..532657a0
--- /dev/null
+++ b/lib/luajit/src/lj_parse.h
@@ -0,0 +1,18 @@
+/*
+** Lua parser (source code -> bytecode).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_PARSE_H
+#define _LJ_PARSE_H
+
+#include "lj_obj.h"
+#include "lj_lex.h"
+
+LJ_FUNC GCproto *lj_parse(LexState *ls);
+LJ_FUNC GCstr *lj_parse_keepstr(LexState *ls, const char *str, size_t l);
+#if LJ_HASFFI
+LJ_FUNC void lj_parse_keepcdata(LexState *ls, TValue *tv, GCcdata *cd);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_record.c b/lib/luajit/src/lj_record.c
new file mode 100644
index 00000000..c6848fc0
--- /dev/null
+++ b/lib/luajit/src/lj_record.c
@@ -0,0 +1,2248 @@
+/*
+** Trace recorder (bytecode -> SSA IR).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_record_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_record.h"
+#include "lj_ffrecord.h"
+#include "lj_snap.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Emit raw IR without passing through optimizations. */
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- Sanity checks ------------------------------------------------------- */
+
+#ifdef LUA_USE_ASSERT
+/* Sanity check the whole IR -- sloooow. */
+static void rec_check_ir(jit_State *J)
+{
+  IRRef i, nins = J->cur.nins, nk = J->cur.nk;
+  lua_assert(nk <= REF_BIAS && nins >= REF_BIAS && nins < 65536);
+  for (i = nins-1; i >= nk; i--) {
+    IRIns *ir = IR(i);
+    uint32_t mode = lj_ir_mode[ir->o];
+    IRRef op1 = ir->op1;
+    IRRef op2 = ir->op2;
+    switch (irm_op1(mode)) {
+    case IRMnone: lua_assert(op1 == 0); break;
+    case IRMref: lua_assert(op1 >= nk);
+      lua_assert(i >= REF_BIAS ? op1 < i : op1 > i); break;
+    case IRMlit: break;
+    case IRMcst: lua_assert(i < REF_BIAS); continue;
+    }
+    switch (irm_op2(mode)) {
+    case IRMnone: lua_assert(op2 == 0); break;
+    case IRMref: lua_assert(op2 >= nk);
+      lua_assert(i >= REF_BIAS ? op2 < i : op2 > i); break;
+    case IRMlit: break;
+    case IRMcst: lua_assert(0); break;
+    }
+    if (ir->prev) {
+      lua_assert(ir->prev >= nk);
+      lua_assert(i >= REF_BIAS ? ir->prev < i : ir->prev > i);
+      lua_assert(ir->o == IR_NOP || IR(ir->prev)->o == ir->o);
+    }
+  }
+}
+
+/* Compare stack slots and frames of the recorder and the VM. */
+static void rec_check_slots(jit_State *J)
+{
+  BCReg s, nslots = J->baseslot + J->maxslot;
+  int32_t depth = 0;
+  cTValue *base = J->L->base - J->baseslot;
+  lua_assert(J->baseslot >= 1 && J->baseslot < LJ_MAX_JSLOTS);
+  lua_assert(J->baseslot == 1 || (J->slot[J->baseslot-1] & TREF_FRAME));
+  lua_assert(nslots < LJ_MAX_JSLOTS);
+  for (s = 0; s < nslots; s++) {
+    TRef tr = J->slot[s];
+    if (tr) {
+      cTValue *tv = &base[s];
+      IRRef ref = tref_ref(tr);
+      IRIns *ir;
+      lua_assert(ref >= J->cur.nk && ref < J->cur.nins);
+      ir = IR(ref);
+      lua_assert(irt_t(ir->t) == tref_t(tr));
+      if (s == 0) {
+	lua_assert(tref_isfunc(tr));
+      } else if ((tr & TREF_FRAME)) {
+	GCfunc *fn = gco2func(frame_gc(tv));
+	BCReg delta = (BCReg)(tv - frame_prev(tv));
+	lua_assert(tref_isfunc(tr));
+	if (tref_isk(tr)) lua_assert(fn == ir_kfunc(ir));
+	lua_assert(s > delta ? (J->slot[s-delta] & TREF_FRAME) : (s == delta));
+	depth++;
+      } else if ((tr & TREF_CONT)) {
+	lua_assert(ir_kptr(ir) == gcrefp(tv->gcr, void));
+	lua_assert((J->slot[s+1] & TREF_FRAME));
+	depth++;
+      } else {
+	if (tvisnumber(tv))
+	  lua_assert(tref_isnumber(tr));  /* Could be IRT_INT etc., too. */
+	else
+	  lua_assert(itype2irt(tv) == tref_type(tr));
+	if (tref_isk(tr)) {  /* Compare constants. */
+	  TValue tvk;
+	  lj_ir_kvalue(J->L, &tvk, ir);
+	  if (!(tvisnum(&tvk) && tvisnan(&tvk)))
+	    lua_assert(lj_obj_equal(tv, &tvk));
+	  else
+	    lua_assert(tvisnum(tv) && tvisnan(tv));
+	}
+      }
+    }
+  }
+  lua_assert(J->framedepth == depth);
+}
+#endif
+
+/* -- Type handling and specialization ------------------------------------ */
+
+/* Note: these functions return tagged references (TRef). */
+
+/* Specialize a slot to a specific type. Note: slot can be negative! */
+static TRef sloadt(jit_State *J, int32_t slot, IRType t, int mode)
+{
+  /* Caller may set IRT_GUARD in t. */
+  TRef ref = emitir_raw(IRT(IR_SLOAD, t), (int32_t)J->baseslot+slot, mode);
+  J->base[slot] = ref;
+  return ref;
+}
+
+/* Specialize a slot to the runtime type. Note: slot can be negative! */
+static TRef sload(jit_State *J, int32_t slot)
+{
+  IRType t = itype2irt(&J->L->base[slot]);
+  TRef ref = emitir_raw(IRTG(IR_SLOAD, t), (int32_t)J->baseslot+slot,
+			IRSLOAD_TYPECHECK);
+  if (irtype_ispri(t)) ref = TREF_PRI(t);  /* Canonicalize primitive refs. */
+  J->base[slot] = ref;
+  return ref;
+}
+
+/* Get TRef from slot. Load slot and specialize if not done already. */
+#define getslot(J, s)	(J->base[(s)] ? J->base[(s)] : sload(J, (int32_t)(s)))
+
+/* Get TRef for current function. */
+static TRef getcurrf(jit_State *J)
+{
+  if (J->base[-1])
+    return J->base[-1];
+  lua_assert(J->baseslot == 1);
+  return sloadt(J, -1, IRT_FUNC, IRSLOAD_READONLY);
+}
+
+/* Compare for raw object equality.
+** Returns 0 if the objects are the same.
+** Returns 1 if they are different, but the same type.
+** Returns 2 for two different types.
+** Comparisons between primitives always return 1 -- no caller cares about it.
+*/
+int lj_record_objcmp(jit_State *J, TRef a, TRef b, cTValue *av, cTValue *bv)
+{
+  int diff = !lj_obj_equal(av, bv);
+  if (!tref_isk2(a, b)) {  /* Shortcut, also handles primitives. */
+    IRType ta = tref_isinteger(a) ? IRT_INT : tref_type(a);
+    IRType tb = tref_isinteger(b) ? IRT_INT : tref_type(b);
+    if (ta != tb) {
+      /* Widen mixed number/int comparisons to number/number comparison. */
+      if (ta == IRT_INT && tb == IRT_NUM) {
+	a = emitir(IRTN(IR_CONV), a, IRCONV_NUM_INT);
+	ta = IRT_NUM;
+      } else if (ta == IRT_NUM && tb == IRT_INT) {
+	b = emitir(IRTN(IR_CONV), b, IRCONV_NUM_INT);
+      } else {
+	return 2;  /* Two different types are never equal. */
+      }
+    }
+    emitir(IRTG(diff ? IR_NE : IR_EQ, ta), a, b);
+  }
+  return diff;
+}
+
+/* Constify a value. Returns 0 for non-representable object types. */
+TRef lj_record_constify(jit_State *J, cTValue *o)
+{
+  if (tvisgcv(o))
+    return lj_ir_kgc(J, gcV(o), itype2irt(o));
+  else if (tvisint(o))
+    return lj_ir_kint(J, intV(o));
+  else if (tvisnum(o))
+    return lj_ir_knumint(J, numV(o));
+  else if (tvisbool(o))
+    return TREF_PRI(itype2irt(o));
+  else
+    return 0;  /* Can't represent lightuserdata (pointless). */
+}
+
+/* -- Record loop ops ----------------------------------------------------- */
+
+/* Loop event. */
+typedef enum {
+  LOOPEV_LEAVE,		/* Loop is left or not entered. */
+  LOOPEV_ENTERLO,	/* Loop is entered with a low iteration count left. */
+  LOOPEV_ENTER		/* Loop is entered. */
+} LoopEvent;
+
+/* Canonicalize slots: convert integers to numbers. */
+static void canonicalize_slots(jit_State *J)
+{
+  BCReg s;
+  if (LJ_DUALNUM) return;
+  for (s = J->baseslot+J->maxslot-1; s >= 1; s--) {
+    TRef tr = J->slot[s];
+    if (tref_isinteger(tr)) {
+      IRIns *ir = IR(tref_ref(tr));
+      if (!(ir->o == IR_SLOAD && (ir->op2 & IRSLOAD_READONLY)))
+	J->slot[s] = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+    }
+  }
+}
+
+/* Stop recording. */
+static void rec_stop(jit_State *J, TraceLink linktype, TraceNo lnk)
+{
+  lj_trace_end(J);
+  J->cur.linktype = (uint8_t)linktype;
+  J->cur.link = (uint16_t)lnk;
+  /* Looping back at the same stack level? */
+  if (lnk == J->cur.traceno && J->framedepth + J->retdepth == 0) {
+    if ((J->flags & JIT_F_OPT_LOOP))  /* Shall we try to create a loop? */
+      goto nocanon;  /* Do not canonicalize or we lose the narrowing. */
+    if (J->cur.root)  /* Otherwise ensure we always link to the root trace. */
+      J->cur.link = J->cur.root;
+  }
+  canonicalize_slots(J);
+nocanon:
+  /* Note: all loop ops must set J->pc to the following instruction! */
+  lj_snap_add(J);  /* Add loop snapshot. */
+  J->needsnap = 0;
+  J->mergesnap = 1;  /* In case recording continues. */
+}
+
+/* Search bytecode backwards for a int/num constant slot initializer. */
+static TRef find_kinit(jit_State *J, const BCIns *endpc, BCReg slot, IRType t)
+{
+  /* This algorithm is rather simplistic and assumes quite a bit about
+  ** how the bytecode is generated. It works fine for FORI initializers,
+  ** but it won't necessarily work in other cases (e.g. iterator arguments).
+  ** It doesn't do anything fancy, either (like backpropagating MOVs).
+  */
+  const BCIns *pc, *startpc = proto_bc(J->pt);
+  for (pc = endpc-1; pc > startpc; pc--) {
+    BCIns ins = *pc;
+    BCOp op = bc_op(ins);
+    /* First try to find the last instruction that stores to this slot. */
+    if (bcmode_a(op) == BCMbase && bc_a(ins) <= slot) {
+      return 0;  /* Multiple results, e.g. from a CALL or KNIL. */
+    } else if (bcmode_a(op) == BCMdst && bc_a(ins) == slot) {
+      if (op == BC_KSHORT || op == BC_KNUM) {  /* Found const. initializer. */
+	/* Now try to verify there's no forward jump across it. */
+	const BCIns *kpc = pc;
+	for (; pc > startpc; pc--)
+	  if (bc_op(*pc) == BC_JMP) {
+	    const BCIns *target = pc+bc_j(*pc)+1;
+	    if (target > kpc && target <= endpc)
+	      return 0;  /* Conditional assignment. */
+	  }
+	if (op == BC_KSHORT) {
+	  int32_t k = (int32_t)(int16_t)bc_d(ins);
+	  return t == IRT_INT ? lj_ir_kint(J, k) : lj_ir_knum(J, (lua_Number)k);
+	} else {
+	  cTValue *tv = proto_knumtv(J->pt, bc_d(ins));
+	  if (t == IRT_INT) {
+	    int32_t k = numberVint(tv);
+	    if (tvisint(tv) || numV(tv) == (lua_Number)k)  /* -0 is ok here. */
+	      return lj_ir_kint(J, k);
+	    return 0;  /* Type mismatch. */
+	  } else {
+	    return lj_ir_knum(J, numberVnum(tv));
+	  }
+	}
+      }
+      return 0;  /* Non-constant initializer. */
+    }
+  }
+  return 0;  /* No assignment to this slot found? */
+}
+
+/* Load and optionally convert a FORI argument from a slot. */
+static TRef fori_load(jit_State *J, BCReg slot, IRType t, int mode)
+{
+  int conv = (tvisint(&J->L->base[slot]) != (t==IRT_INT)) ? IRSLOAD_CONVERT : 0;
+  return sloadt(J, (int32_t)slot,
+		t + (((mode & IRSLOAD_TYPECHECK) ||
+		      (conv && t == IRT_INT && !(mode >> 16))) ?
+		     IRT_GUARD : 0),
+		mode + conv);
+}
+
+/* Peek before FORI to find a const initializer. Otherwise load from slot. */
+static TRef fori_arg(jit_State *J, const BCIns *fori, BCReg slot,
+		     IRType t, int mode)
+{
+  TRef tr = J->base[slot];
+  if (!tr) {
+    tr = find_kinit(J, fori, slot, t);
+    if (!tr)
+      tr = fori_load(J, slot, t, mode);
+  }
+  return tr;
+}
+
+/* Return the direction of the FOR loop iterator.
+** It's important to exactly reproduce the semantics of the interpreter.
+*/
+static int rec_for_direction(cTValue *o)
+{
+  return (tvisint(o) ? intV(o) : (int32_t)o->u32.hi) >= 0;
+}
+
+/* Simulate the runtime behavior of the FOR loop iterator. */
+static LoopEvent rec_for_iter(IROp *op, cTValue *o, int isforl)
+{
+  lua_Number stopv = numberVnum(&o[FORL_STOP]);
+  lua_Number idxv = numberVnum(&o[FORL_IDX]);
+  lua_Number stepv = numberVnum(&o[FORL_STEP]);
+  if (isforl)
+    idxv += stepv;
+  if (rec_for_direction(&o[FORL_STEP])) {
+    if (idxv <= stopv) {
+      *op = IR_LE;
+      return idxv + 2*stepv > stopv ? LOOPEV_ENTERLO : LOOPEV_ENTER;
+    }
+    *op = IR_GT; return LOOPEV_LEAVE;
+  } else {
+    if (stopv <= idxv) {
+      *op = IR_GE;
+      return idxv + 2*stepv < stopv ? LOOPEV_ENTERLO : LOOPEV_ENTER;
+    }
+    *op = IR_LT; return LOOPEV_LEAVE;
+  }
+}
+
+/* Record checks for FOR loop overflow and step direction. */
+static void rec_for_check(jit_State *J, IRType t, int dir,
+			  TRef stop, TRef step, int init)
+{
+  if (!tref_isk(step)) {
+    /* Non-constant step: need a guard for the direction. */
+    TRef zero = (t == IRT_INT) ? lj_ir_kint(J, 0) : lj_ir_knum_zero(J);
+    emitir(IRTG(dir ? IR_GE : IR_LT, t), step, zero);
+    /* Add hoistable overflow checks for a narrowed FORL index. */
+    if (init && t == IRT_INT) {
+      if (tref_isk(stop)) {
+	/* Constant stop: optimize check away or to a range check for step. */
+	int32_t k = IR(tref_ref(stop))->i;
+	if (dir) {
+	  if (k > 0)
+	    emitir(IRTGI(IR_LE), step, lj_ir_kint(J, (int32_t)0x7fffffff-k));
+	} else {
+	  if (k < 0)
+	    emitir(IRTGI(IR_GE), step, lj_ir_kint(J, (int32_t)0x80000000-k));
+	}
+      } else {
+	/* Stop+step variable: need full overflow check. */
+	TRef tr = emitir(IRTGI(IR_ADDOV), step, stop);
+	emitir(IRTI(IR_USE), tr, 0);  /* ADDOV is weak. Avoid dead result. */
+      }
+    }
+  } else if (init && t == IRT_INT && !tref_isk(stop)) {
+    /* Constant step: optimize overflow check to a range check for stop. */
+    int32_t k = IR(tref_ref(step))->i;
+    k = (int32_t)(dir ? 0x7fffffff : 0x80000000) - k;
+    emitir(IRTGI(dir ? IR_LE : IR_GE), stop, lj_ir_kint(J, k));
+  }
+}
+
+/* Record a FORL instruction. */
+static void rec_for_loop(jit_State *J, const BCIns *fori, ScEvEntry *scev,
+			 int init)
+{
+  BCReg ra = bc_a(*fori);
+  cTValue *tv = &J->L->base[ra];
+  TRef idx = J->base[ra+FORL_IDX];
+  IRType t = idx ? tref_type(idx) :
+	     (init || LJ_DUALNUM) ? lj_opt_narrow_forl(J, tv) : IRT_NUM;
+  int mode = IRSLOAD_INHERIT +
+    ((!LJ_DUALNUM || tvisint(tv) == (t == IRT_INT)) ? IRSLOAD_READONLY : 0);
+  TRef stop = fori_arg(J, fori, ra+FORL_STOP, t, mode);
+  TRef step = fori_arg(J, fori, ra+FORL_STEP, t, mode);
+  int tc, dir = rec_for_direction(&tv[FORL_STEP]);
+  lua_assert(bc_op(*fori) == BC_FORI || bc_op(*fori) == BC_JFORI);
+  scev->t.irt = t;
+  scev->dir = dir;
+  scev->stop = tref_ref(stop);
+  scev->step = tref_ref(step);
+  rec_for_check(J, t, dir, stop, step, init);
+  scev->start = tref_ref(find_kinit(J, fori, ra+FORL_IDX, IRT_INT));
+  tc = (LJ_DUALNUM &&
+	!(scev->start && irref_isk(scev->stop) && irref_isk(scev->step) &&
+	  tvisint(&tv[FORL_IDX]) == (t == IRT_INT))) ?
+	IRSLOAD_TYPECHECK : 0;
+  if (tc) {
+    J->base[ra+FORL_STOP] = stop;
+    J->base[ra+FORL_STEP] = step;
+  }
+  if (!idx)
+    idx = fori_load(J, ra+FORL_IDX, t,
+		    IRSLOAD_INHERIT + tc + (J->scev.start << 16));
+  if (!init)
+    J->base[ra+FORL_IDX] = idx = emitir(IRT(IR_ADD, t), idx, step);
+  J->base[ra+FORL_EXT] = idx;
+  scev->idx = tref_ref(idx);
+  J->maxslot = ra+FORL_EXT+1;
+}
+
+/* Record FORL/JFORL or FORI/JFORI. */
+static LoopEvent rec_for(jit_State *J, const BCIns *fori, int isforl)
+{
+  BCReg ra = bc_a(*fori);
+  TValue *tv = &J->L->base[ra];
+  TRef *tr = &J->base[ra];
+  IROp op;
+  LoopEvent ev;
+  TRef stop;
+  IRType t;
+  if (isforl) {  /* Handle FORL/JFORL opcodes. */
+    TRef idx = tr[FORL_IDX];
+    if (tref_ref(idx) == J->scev.idx) {
+      t = J->scev.t.irt;
+      stop = J->scev.stop;
+      idx = emitir(IRT(IR_ADD, t), idx, J->scev.step);
+      tr[FORL_EXT] = tr[FORL_IDX] = idx;
+    } else {
+      ScEvEntry scev;
+      rec_for_loop(J, fori, &scev, 0);
+      t = scev.t.irt;
+      stop = scev.stop;
+    }
+  } else {  /* Handle FORI/JFORI opcodes. */
+    BCReg i;
+    lj_meta_for(J->L, tv);
+    t = (LJ_DUALNUM || tref_isint(tr[FORL_IDX])) ? lj_opt_narrow_forl(J, tv) :
+						   IRT_NUM;
+    for (i = FORL_IDX; i <= FORL_STEP; i++) {
+      if (!tr[i]) sload(J, ra+i);
+      lua_assert(tref_isnumber_str(tr[i]));
+      if (tref_isstr(tr[i]))
+	tr[i] = emitir(IRTG(IR_STRTO, IRT_NUM), tr[i], 0);
+      if (t == IRT_INT) {
+	if (!tref_isinteger(tr[i]))
+	  tr[i] = emitir(IRTGI(IR_CONV), tr[i], IRCONV_INT_NUM|IRCONV_CHECK);
+      } else {
+	if (!tref_isnum(tr[i]))
+	  tr[i] = emitir(IRTN(IR_CONV), tr[i], IRCONV_NUM_INT);
+      }
+    }
+    tr[FORL_EXT] = tr[FORL_IDX];
+    stop = tr[FORL_STOP];
+    rec_for_check(J, t, rec_for_direction(&tv[FORL_STEP]),
+		  stop, tr[FORL_STEP], 1);
+  }
+
+  ev = rec_for_iter(&op, tv, isforl);
+  if (ev == LOOPEV_LEAVE) {
+    J->maxslot = ra+FORL_EXT+1;
+    J->pc = fori+1;
+  } else {
+    J->maxslot = ra;
+    J->pc = fori+bc_j(*fori)+1;
+  }
+  lj_snap_add(J);
+
+  emitir(IRTG(op, t), tr[FORL_IDX], stop);
+
+  if (ev == LOOPEV_LEAVE) {
+    J->maxslot = ra;
+    J->pc = fori+bc_j(*fori)+1;
+  } else {
+    J->maxslot = ra+FORL_EXT+1;
+    J->pc = fori+1;
+  }
+  J->needsnap = 1;
+  return ev;
+}
+
+/* Record ITERL/JITERL. */
+static LoopEvent rec_iterl(jit_State *J, const BCIns iterins)
+{
+  BCReg ra = bc_a(iterins);
+  lua_assert(J->base[ra] != 0);
+  if (!tref_isnil(J->base[ra])) {  /* Looping back? */
+    J->base[ra-1] = J->base[ra];  /* Copy result of ITERC to control var. */
+    J->maxslot = ra-1+bc_b(J->pc[-1]);
+    J->pc += bc_j(iterins)+1;
+    return LOOPEV_ENTER;
+  } else {
+    J->maxslot = ra-3;
+    J->pc++;
+    return LOOPEV_LEAVE;
+  }
+}
+
+/* Record LOOP/JLOOP. Now, that was easy. */
+static LoopEvent rec_loop(jit_State *J, BCReg ra)
+{
+  if (ra < J->maxslot) J->maxslot = ra;
+  J->pc++;
+  return LOOPEV_ENTER;
+}
+
+/* Check if a loop repeatedly failed to trace because it didn't loop back. */
+static int innerloopleft(jit_State *J, const BCIns *pc)
+{
+  ptrdiff_t i;
+  for (i = 0; i < PENALTY_SLOTS; i++)
+    if (mref(J->penalty[i].pc, const BCIns) == pc) {
+      if ((J->penalty[i].reason == LJ_TRERR_LLEAVE ||
+	   J->penalty[i].reason == LJ_TRERR_LINNER) &&
+	  J->penalty[i].val >= 2*PENALTY_MIN)
+	return 1;
+      break;
+    }
+  return 0;
+}
+
+/* Handle the case when an interpreted loop op is hit. */
+static void rec_loop_interp(jit_State *J, const BCIns *pc, LoopEvent ev)
+{
+  if (J->parent == 0) {
+    if (pc == J->startpc && J->framedepth + J->retdepth == 0) {
+      /* Same loop? */
+      if (ev == LOOPEV_LEAVE)  /* Must loop back to form a root trace. */
+	lj_trace_err(J, LJ_TRERR_LLEAVE);
+      rec_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Looping root trace. */
+    } else if (ev != LOOPEV_LEAVE) {  /* Entering inner loop? */
+      /* It's usually better to abort here and wait until the inner loop
+      ** is traced. But if the inner loop repeatedly didn't loop back,
+      ** this indicates a low trip count. In this case try unrolling
+      ** an inner loop even in a root trace. But it's better to be a bit
+      ** more conservative here and only do it for very short loops.
+      */
+      if (bc_j(*pc) != -1 && !innerloopleft(J, pc))
+	lj_trace_err(J, LJ_TRERR_LINNER);  /* Root trace hit an inner loop. */
+      if ((ev != LOOPEV_ENTERLO &&
+	   J->loopref && J->cur.nins - J->loopref > 24) || --J->loopunroll < 0)
+	lj_trace_err(J, LJ_TRERR_LUNROLL);  /* Limit loop unrolling. */
+      J->loopref = J->cur.nins;
+    }
+  } else if (ev != LOOPEV_LEAVE) {  /* Side trace enters an inner loop. */
+    J->loopref = J->cur.nins;
+    if (--J->loopunroll < 0)
+      lj_trace_err(J, LJ_TRERR_LUNROLL);  /* Limit loop unrolling. */
+  }  /* Side trace continues across a loop that's left or not entered. */
+}
+
+/* Handle the case when an already compiled loop op is hit. */
+static void rec_loop_jit(jit_State *J, TraceNo lnk, LoopEvent ev)
+{
+  if (J->parent == 0) {  /* Root trace hit an inner loop. */
+    /* Better let the inner loop spawn a side trace back here. */
+    lj_trace_err(J, LJ_TRERR_LINNER);
+  } else if (ev != LOOPEV_LEAVE) {  /* Side trace enters a compiled loop. */
+    J->instunroll = 0;  /* Cannot continue across a compiled loop op. */
+    if (J->pc == J->startpc && J->framedepth + J->retdepth == 0)
+      rec_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Form an extra loop. */
+    else
+      rec_stop(J, LJ_TRLINK_ROOT, lnk);  /* Link to the loop. */
+  }  /* Side trace continues across a loop that's left or not entered. */
+}
+
+/* -- Record calls and returns -------------------------------------------- */
+
+/* Specialize to the runtime value of the called function or its prototype. */
+static TRef rec_call_specialize(jit_State *J, GCfunc *fn, TRef tr)
+{
+  TRef kfunc;
+  if (isluafunc(fn)) {
+    GCproto *pt = funcproto(fn);
+    /* Too many closures created? Probably not a monomorphic function. */
+    if (pt->flags >= PROTO_CLC_POLY) {  /* Specialize to prototype instead. */
+      TRef trpt = emitir(IRT(IR_FLOAD, IRT_P32), tr, IRFL_FUNC_PC);
+      emitir(IRTG(IR_EQ, IRT_P32), trpt, lj_ir_kptr(J, proto_bc(pt)));
+      (void)lj_ir_kgc(J, obj2gco(pt), IRT_PROTO);  /* Prevent GC of proto. */
+      return tr;
+    }
+  }
+  /* Otherwise specialize to the function (closure) value itself. */
+  kfunc = lj_ir_kfunc(J, fn);
+  emitir(IRTG(IR_EQ, IRT_FUNC), tr, kfunc);
+  return kfunc;
+}
+
+/* Record call setup. */
+static void rec_call_setup(jit_State *J, BCReg func, ptrdiff_t nargs)
+{
+  RecordIndex ix;
+  TValue *functv = &J->L->base[func];
+  TRef *fbase = &J->base[func];
+  ptrdiff_t i;
+  for (i = 0; i <= nargs; i++)
+    (void)getslot(J, func+i);  /* Ensure func and all args have a reference. */
+  if (!tref_isfunc(fbase[0])) {  /* Resolve __call metamethod. */
+    ix.tab = fbase[0];
+    copyTV(J->L, &ix.tabv, functv);
+    if (!lj_record_mm_lookup(J, &ix, MM_call) || !tref_isfunc(ix.mobj))
+      lj_trace_err(J, LJ_TRERR_NOMM);
+    for (i = ++nargs; i > 0; i--)  /* Shift arguments up. */
+      fbase[i] = fbase[i-1];
+    fbase[0] = ix.mobj;  /* Replace function. */
+    functv = &ix.mobjv;
+  }
+  fbase[0] = TREF_FRAME | rec_call_specialize(J, funcV(functv), fbase[0]);
+  J->maxslot = (BCReg)nargs;
+}
+
+/* Record call. */
+void lj_record_call(jit_State *J, BCReg func, ptrdiff_t nargs)
+{
+  rec_call_setup(J, func, nargs);
+  /* Bump frame. */
+  J->framedepth++;
+  J->base += func+1;
+  J->baseslot += func+1;
+}
+
+/* Record tail call. */
+void lj_record_tailcall(jit_State *J, BCReg func, ptrdiff_t nargs)
+{
+  rec_call_setup(J, func, nargs);
+  if (frame_isvarg(J->L->base - 1)) {
+    BCReg cbase = (BCReg)frame_delta(J->L->base - 1);
+    if (--J->framedepth < 0)
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    func += cbase;
+  }
+  /* Move func + args down. */
+  memmove(&J->base[-1], &J->base[func], sizeof(TRef)*(J->maxslot+1));
+  /* Note: the new TREF_FRAME is now at J->base[-1] (even for slot #0). */
+  /* Tailcalls can form a loop, so count towards the loop unroll limit. */
+  if (++J->tailcalled > J->loopunroll)
+    lj_trace_err(J, LJ_TRERR_LUNROLL);
+}
+
+/* Check unroll limits for down-recursion. */
+static int check_downrec_unroll(jit_State *J, GCproto *pt)
+{
+  IRRef ptref;
+  for (ptref = J->chain[IR_KGC]; ptref; ptref = IR(ptref)->prev)
+    if (ir_kgc(IR(ptref)) == obj2gco(pt)) {
+      int count = 0;
+      IRRef ref;
+      for (ref = J->chain[IR_RETF]; ref; ref = IR(ref)->prev)
+	if (IR(ref)->op1 == ptref)
+	  count++;
+      if (count) {
+	if (J->pc == J->startpc) {
+	  if (count + J->tailcalled > J->param[JIT_P_recunroll])
+	    return 1;
+	} else {
+	  lj_trace_err(J, LJ_TRERR_DOWNREC);
+	}
+      }
+    }
+  return 0;
+}
+
+/* Record return. */
+void lj_record_ret(jit_State *J, BCReg rbase, ptrdiff_t gotresults)
+{
+  TValue *frame = J->L->base - 1;
+  ptrdiff_t i;
+  for (i = 0; i < gotresults; i++)
+    (void)getslot(J, rbase+i);  /* Ensure all results have a reference. */
+  while (frame_ispcall(frame)) {  /* Immediately resolve pcall() returns. */
+    BCReg cbase = (BCReg)frame_delta(frame);
+    if (--J->framedepth < 0)
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    lua_assert(J->baseslot > 1);
+    gotresults++;
+    rbase += cbase;
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    J->base[--rbase] = TREF_TRUE;  /* Prepend true to results. */
+    frame = frame_prevd(frame);
+  }
+  /* Return to lower frame via interpreter for unhandled cases. */
+  if (J->framedepth == 0 && J->pt && bc_isret(bc_op(*J->pc)) &&
+       (!frame_islua(frame) ||
+	(J->parent == 0 && !bc_isret(bc_op(J->cur.startins))))) {
+    /* NYI: specialize to frame type and return directly, not via RET*. */
+    for (i = 0; i < (ptrdiff_t)rbase; i++)
+      J->base[i] = 0;  /* Purge dead slots. */
+    J->maxslot = rbase + (BCReg)gotresults;
+    rec_stop(J, LJ_TRLINK_RETURN, 0);  /* Return to interpreter. */
+    return;
+  }
+  if (frame_isvarg(frame)) {
+    BCReg cbase = (BCReg)frame_delta(frame);
+    if (--J->framedepth < 0)  /* NYI: return of vararg func to lower frame. */
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    lua_assert(J->baseslot > 1);
+    rbase += cbase;
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    frame = frame_prevd(frame);
+  }
+  if (frame_islua(frame)) {  /* Return to Lua frame. */
+    BCIns callins = *(frame_pc(frame)-1);
+    ptrdiff_t nresults = bc_b(callins) ? (ptrdiff_t)bc_b(callins)-1 :gotresults;
+    BCReg cbase = bc_a(callins);
+    GCproto *pt = funcproto(frame_func(frame - (cbase+1)));
+    if ((pt->flags & PROTO_NOJIT))
+      lj_trace_err(J, LJ_TRERR_CJITOFF);
+    if (J->framedepth == 0 && J->pt && frame == J->L->base - 1) {
+      if (check_downrec_unroll(J, pt)) {
+	J->maxslot = (BCReg)(rbase + gotresults);
+	lj_snap_purge(J);
+	rec_stop(J, LJ_TRLINK_DOWNREC, J->cur.traceno);  /* Down-recursion. */
+	return;
+      }
+      lj_snap_add(J);
+    }
+    for (i = 0; i < nresults; i++)  /* Adjust results. */
+      J->base[i-1] = i < gotresults ? J->base[rbase+i] : TREF_NIL;
+    J->maxslot = cbase+(BCReg)nresults;
+    if (J->framedepth > 0) {  /* Return to a frame that is part of the trace. */
+      J->framedepth--;
+      lua_assert(J->baseslot > cbase+1);
+      J->baseslot -= cbase+1;
+      J->base -= cbase+1;
+    } else if (J->parent == 0 && !bc_isret(bc_op(J->cur.startins))) {
+      /* Return to lower frame would leave the loop in a root trace. */
+      lj_trace_err(J, LJ_TRERR_LLEAVE);
+    } else {  /* Return to lower frame. Guard for the target we return to. */
+      TRef trpt = lj_ir_kgc(J, obj2gco(pt), IRT_PROTO);
+      TRef trpc = lj_ir_kptr(J, (void *)frame_pc(frame));
+      emitir(IRTG(IR_RETF, IRT_P32), trpt, trpc);
+      J->retdepth++;
+      J->needsnap = 1;
+      lua_assert(J->baseslot == 1);
+      /* Shift result slots up and clear the slots of the new frame below. */
+      memmove(J->base + cbase, J->base-1, sizeof(TRef)*nresults);
+      memset(J->base-1, 0, sizeof(TRef)*(cbase+1));
+    }
+  } else if (frame_iscont(frame)) {  /* Return to continuation frame. */
+    ASMFunction cont = frame_contf(frame);
+    BCReg cbase = (BCReg)frame_delta(frame);
+    if ((J->framedepth -= 2) < 0)
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    J->maxslot = cbase-2;
+    if (cont == lj_cont_ra) {
+      /* Copy result to destination slot. */
+      BCReg dst = bc_a(*(frame_contpc(frame)-1));
+      J->base[dst] = gotresults ? J->base[cbase+rbase] : TREF_NIL;
+      if (dst >= J->maxslot) J->maxslot = dst+1;
+    } else if (cont == lj_cont_nop) {
+      /* Nothing to do here. */
+    } else if (cont == lj_cont_cat) {
+      lua_assert(0);
+    } else {
+      /* Result type already specialized. */
+      lua_assert(cont == lj_cont_condf || cont == lj_cont_condt);
+    }
+  } else {
+    lj_trace_err(J, LJ_TRERR_NYIRETL);  /* NYI: handle return to C frame. */
+  }
+  lua_assert(J->baseslot >= 1);
+}
+
+/* -- Metamethod handling ------------------------------------------------- */
+
+/* Prepare to record call to metamethod. */
+static BCReg rec_mm_prep(jit_State *J, ASMFunction cont)
+{
+  BCReg s, top = curr_proto(J->L)->framesize;
+  TRef trcont;
+  setcont(&J->L->base[top], cont);
+#if LJ_64
+  trcont = lj_ir_kptr(J, (void *)((int64_t)cont - (int64_t)lj_vm_asm_begin));
+#else
+  trcont = lj_ir_kptr(J, (void *)cont);
+#endif
+  J->base[top] = trcont | TREF_CONT;
+  J->framedepth++;
+  for (s = J->maxslot; s < top; s++)
+    J->base[s] = 0;  /* Clear frame gap to avoid resurrecting previous refs. */
+  return top+1;
+}
+
+/* Record metamethod lookup. */
+int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm)
+{
+  RecordIndex mix;
+  GCtab *mt;
+  if (tref_istab(ix->tab)) {
+    mt = tabref(tabV(&ix->tabv)->metatable);
+    mix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_TAB_META);
+  } else if (tref_isudata(ix->tab)) {
+    int udtype = udataV(&ix->tabv)->udtype;
+    mt = tabref(udataV(&ix->tabv)->metatable);
+    /* The metatables of special userdata objects are treated as immutable. */
+    if (udtype != UDTYPE_USERDATA) {
+      cTValue *mo;
+      if (LJ_HASFFI && udtype == UDTYPE_FFI_CLIB) {
+	/* Specialize to the C library namespace object. */
+	emitir(IRTG(IR_EQ, IRT_P32), ix->tab, lj_ir_kptr(J, udataV(&ix->tabv)));
+      } else {
+	/* Specialize to the type of userdata. */
+	TRef tr = emitir(IRT(IR_FLOAD, IRT_U8), ix->tab, IRFL_UDATA_UDTYPE);
+	emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, udtype));
+      }
+  immutable_mt:
+      mo = lj_tab_getstr(mt, mmname_str(J2G(J), mm));
+      if (!mo || tvisnil(mo))
+	return 0;  /* No metamethod. */
+      /* Treat metamethod or index table as immutable, too. */
+      if (!(tvisfunc(mo) || tvistab(mo)))
+	lj_trace_err(J, LJ_TRERR_BADTYPE);
+      copyTV(J->L, &ix->mobjv, mo);
+      ix->mobj = lj_ir_kgc(J, gcV(mo), tvisfunc(mo) ? IRT_FUNC : IRT_TAB);
+      ix->mtv = mt;
+      ix->mt = TREF_NIL;  /* Dummy value for comparison semantics. */
+      return 1;  /* Got metamethod or index table. */
+    }
+    mix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_UDATA_META);
+  } else {
+    /* Specialize to base metatable. Must flush mcode in lua_setmetatable(). */
+    mt = tabref(basemt_obj(J2G(J), &ix->tabv));
+    if (mt == NULL) {
+      ix->mt = TREF_NIL;
+      return 0;  /* No metamethod. */
+    }
+    /* The cdata metatable is treated as immutable. */
+    if (LJ_HASFFI && tref_iscdata(ix->tab)) goto immutable_mt;
+    ix->mt = mix.tab = lj_ir_ktab(J, mt);
+    goto nocheck;
+  }
+  ix->mt = mt ? mix.tab : TREF_NIL;
+  emitir(IRTG(mt ? IR_NE : IR_EQ, IRT_TAB), mix.tab, lj_ir_knull(J, IRT_TAB));
+nocheck:
+  if (mt) {
+    GCstr *mmstr = mmname_str(J2G(J), mm);
+    cTValue *mo = lj_tab_getstr(mt, mmstr);
+    if (mo && !tvisnil(mo))
+      copyTV(J->L, &ix->mobjv, mo);
+    ix->mtv = mt;
+    settabV(J->L, &mix.tabv, mt);
+    setstrV(J->L, &mix.keyv, mmstr);
+    mix.key = lj_ir_kstr(J, mmstr);
+    mix.val = 0;
+    mix.idxchain = 0;
+    ix->mobj = lj_record_idx(J, &mix);
+    return !tref_isnil(ix->mobj);  /* 1 if metamethod found, 0 if not. */
+  }
+  return 0;  /* No metamethod. */
+}
+
+/* Record call to arithmetic metamethod. */
+static TRef rec_mm_arith(jit_State *J, RecordIndex *ix, MMS mm)
+{
+  /* Set up metamethod call first to save ix->tab and ix->tabv. */
+  BCReg func = rec_mm_prep(J, lj_cont_ra);
+  TRef *base = J->base + func;
+  TValue *basev = J->L->base + func;
+  base[1] = ix->tab; base[2] = ix->key;
+  copyTV(J->L, basev+1, &ix->tabv);
+  copyTV(J->L, basev+2, &ix->keyv);
+  if (!lj_record_mm_lookup(J, ix, mm)) {  /* Lookup mm on 1st operand. */
+    if (mm != MM_unm) {
+      ix->tab = ix->key;
+      copyTV(J->L, &ix->tabv, &ix->keyv);
+      if (lj_record_mm_lookup(J, ix, mm))  /* Lookup mm on 2nd operand. */
+	goto ok;
+    }
+    lj_trace_err(J, LJ_TRERR_NOMM);
+  }
+ok:
+  base[0] = ix->mobj;
+  copyTV(J->L, basev+0, &ix->mobjv);
+  lj_record_call(J, func, 2);
+  return 0;  /* No result yet. */
+}
+
+/* Record call to __len metamethod. */
+static TRef rec_mm_len(jit_State *J, TRef tr, TValue *tv)
+{
+  RecordIndex ix;
+  ix.tab = tr;
+  copyTV(J->L, &ix.tabv, tv);
+  if (lj_record_mm_lookup(J, &ix, MM_len)) {
+    BCReg func = rec_mm_prep(J, lj_cont_ra);
+    TRef *base = J->base + func;
+    TValue *basev = J->L->base + func;
+    base[0] = ix.mobj; copyTV(J->L, basev+0, &ix.mobjv);
+    base[1] = tr; copyTV(J->L, basev+1, tv);
+#if LJ_52
+    base[2] = tr; copyTV(J->L, basev+2, tv);
+#else
+    base[2] = TREF_NIL; setnilV(basev+2);
+#endif
+    lj_record_call(J, func, 2);
+  } else {
+    if (LJ_52 && tref_istab(tr))
+      return lj_ir_call(J, IRCALL_lj_tab_len, tr);
+    lj_trace_err(J, LJ_TRERR_NOMM);
+  }
+  return 0;  /* No result yet. */
+}
+
+/* Call a comparison metamethod. */
+static void rec_mm_callcomp(jit_State *J, RecordIndex *ix, int op)
+{
+  BCReg func = rec_mm_prep(J, (op&1) ? lj_cont_condf : lj_cont_condt);
+  TRef *base = J->base + func;
+  TValue *tv = J->L->base + func;
+  base[0] = ix->mobj; base[1] = ix->val; base[2] = ix->key;
+  copyTV(J->L, tv+0, &ix->mobjv);
+  copyTV(J->L, tv+1, &ix->valv);
+  copyTV(J->L, tv+2, &ix->keyv);
+  lj_record_call(J, func, 2);
+}
+
+/* Record call to equality comparison metamethod (for tab and udata only). */
+static void rec_mm_equal(jit_State *J, RecordIndex *ix, int op)
+{
+  ix->tab = ix->val;
+  copyTV(J->L, &ix->tabv, &ix->valv);
+  if (lj_record_mm_lookup(J, ix, MM_eq)) {  /* Lookup mm on 1st operand. */
+    cTValue *bv;
+    TRef mo1 = ix->mobj;
+    TValue mo1v;
+    copyTV(J->L, &mo1v, &ix->mobjv);
+    /* Avoid the 2nd lookup and the objcmp if the metatables are equal. */
+    bv = &ix->keyv;
+    if (tvistab(bv) && tabref(tabV(bv)->metatable) == ix->mtv) {
+      TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_TAB_META);
+      emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+    } else if (tvisudata(bv) && tabref(udataV(bv)->metatable) == ix->mtv) {
+      TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_UDATA_META);
+      emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+    } else {  /* Lookup metamethod on 2nd operand and compare both. */
+      ix->tab = ix->key;
+      copyTV(J->L, &ix->tabv, bv);
+      if (!lj_record_mm_lookup(J, ix, MM_eq) ||
+	  lj_record_objcmp(J, mo1, ix->mobj, &mo1v, &ix->mobjv))
+	return;
+    }
+    rec_mm_callcomp(J, ix, op);
+  }
+}
+
+/* Record call to ordered comparison metamethods (for arbitrary objects). */
+static void rec_mm_comp(jit_State *J, RecordIndex *ix, int op)
+{
+  ix->tab = ix->val;
+  copyTV(J->L, &ix->tabv, &ix->valv);
+  while (1) {
+    MMS mm = (op & 2) ? MM_le : MM_lt;  /* Try __le + __lt or only __lt. */
+#if LJ_52
+    if (!lj_record_mm_lookup(J, ix, mm)) {  /* Lookup mm on 1st operand. */
+      ix->tab = ix->key;
+      copyTV(J->L, &ix->tabv, &ix->keyv);
+      if (!lj_record_mm_lookup(J, ix, mm))  /* Lookup mm on 2nd operand. */
+	goto nomatch;
+    }
+    rec_mm_callcomp(J, ix, op);
+    return;
+#else
+    if (lj_record_mm_lookup(J, ix, mm)) {  /* Lookup mm on 1st operand. */
+      cTValue *bv;
+      TRef mo1 = ix->mobj;
+      TValue mo1v;
+      copyTV(J->L, &mo1v, &ix->mobjv);
+      /* Avoid the 2nd lookup and the objcmp if the metatables are equal. */
+      bv = &ix->keyv;
+      if (tvistab(bv) && tabref(tabV(bv)->metatable) == ix->mtv) {
+	TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_TAB_META);
+	emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+      } else if (tvisudata(bv) && tabref(udataV(bv)->metatable) == ix->mtv) {
+	TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_UDATA_META);
+	emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+      } else {  /* Lookup metamethod on 2nd operand and compare both. */
+	ix->tab = ix->key;
+	copyTV(J->L, &ix->tabv, bv);
+	if (!lj_record_mm_lookup(J, ix, mm) ||
+	    lj_record_objcmp(J, mo1, ix->mobj, &mo1v, &ix->mobjv))
+	  goto nomatch;
+      }
+      rec_mm_callcomp(J, ix, op);
+      return;
+    }
+#endif
+  nomatch:
+    /* Lookup failed. Retry with  __lt and swapped operands. */
+    if (!(op & 2)) break;  /* Already at __lt. Interpreter will throw. */
+    ix->tab = ix->key; ix->key = ix->val; ix->val = ix->tab;
+    copyTV(J->L, &ix->tabv, &ix->keyv);
+    copyTV(J->L, &ix->keyv, &ix->valv);
+    copyTV(J->L, &ix->valv, &ix->tabv);
+    op ^= 3;
+  }
+}
+
+#if LJ_HASFFI
+/* Setup call to cdata comparison metamethod. */
+static void rec_mm_comp_cdata(jit_State *J, RecordIndex *ix, int op, MMS mm)
+{
+  lj_snap_add(J);
+  if (tref_iscdata(ix->val)) {
+    ix->tab = ix->val;
+    copyTV(J->L, &ix->tabv, &ix->valv);
+  } else {
+    lua_assert(tref_iscdata(ix->key));
+    ix->tab = ix->key;
+    copyTV(J->L, &ix->tabv, &ix->keyv);
+  }
+  lj_record_mm_lookup(J, ix, mm);
+  rec_mm_callcomp(J, ix, op);
+}
+#endif
+
+/* -- Indexed access ------------------------------------------------------ */
+
+/* Record bounds-check. */
+static void rec_idx_abc(jit_State *J, TRef asizeref, TRef ikey, uint32_t asize)
+{
+  /* Try to emit invariant bounds checks. */
+  if ((J->flags & (JIT_F_OPT_LOOP|JIT_F_OPT_ABC)) ==
+      (JIT_F_OPT_LOOP|JIT_F_OPT_ABC)) {
+    IRRef ref = tref_ref(ikey);
+    IRIns *ir = IR(ref);
+    int32_t ofs = 0;
+    IRRef ofsref = 0;
+    /* Handle constant offsets. */
+    if (ir->o == IR_ADD && irref_isk(ir->op2)) {
+      ofsref = ir->op2;
+      ofs = IR(ofsref)->i;
+      ref = ir->op1;
+      ir = IR(ref);
+    }
+    /* Got scalar evolution analysis results for this reference? */
+    if (ref == J->scev.idx) {
+      int32_t stop;
+      lua_assert(irt_isint(J->scev.t) && ir->o == IR_SLOAD);
+      stop = numberVint(&(J->L->base - J->baseslot)[ir->op1 + FORL_STOP]);
+      /* Runtime value for stop of loop is within bounds? */
+      if ((int64_t)stop + ofs < (int64_t)asize) {
+	/* Emit invariant bounds check for stop. */
+	emitir(IRTG(IR_ABC, IRT_P32), asizeref, ofs == 0 ? J->scev.stop :
+	       emitir(IRTI(IR_ADD), J->scev.stop, ofsref));
+	/* Emit invariant bounds check for start, if not const or negative. */
+	if (!(J->scev.dir && J->scev.start &&
+	      (int64_t)IR(J->scev.start)->i + ofs >= 0))
+	  emitir(IRTG(IR_ABC, IRT_P32), asizeref, ikey);
+	return;
+      }
+    }
+  }
+  emitir(IRTGI(IR_ABC), asizeref, ikey);  /* Emit regular bounds check. */
+}
+
+/* Record indexed key lookup. */
+static TRef rec_idx_key(jit_State *J, RecordIndex *ix)
+{
+  TRef key;
+  GCtab *t = tabV(&ix->tabv);
+  ix->oldv = lj_tab_get(J->L, t, &ix->keyv);  /* Lookup previous value. */
+
+  /* Integer keys are looked up in the array part first. */
+  key = ix->key;
+  if (tref_isnumber(key)) {
+    int32_t k = numberVint(&ix->keyv);
+    if (!tvisint(&ix->keyv) && numV(&ix->keyv) != (lua_Number)k)
+      k = LJ_MAX_ASIZE;
+    if ((MSize)k < LJ_MAX_ASIZE) {  /* Potential array key? */
+      TRef ikey = lj_opt_narrow_index(J, key);
+      TRef asizeref = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_ASIZE);
+      if ((MSize)k < t->asize) {  /* Currently an array key? */
+	TRef arrayref;
+	rec_idx_abc(J, asizeref, ikey, t->asize);
+	arrayref = emitir(IRT(IR_FLOAD, IRT_P32), ix->tab, IRFL_TAB_ARRAY);
+	return emitir(IRT(IR_AREF, IRT_P32), arrayref, ikey);
+      } else {  /* Currently not in array (may be an array extension)? */
+	emitir(IRTGI(IR_ULE), asizeref, ikey);  /* Inv. bounds check. */
+	if (k == 0 && tref_isk(key))
+	  key = lj_ir_knum_zero(J);  /* Canonicalize 0 or +-0.0 to +0.0. */
+	/* And continue with the hash lookup. */
+      }
+    } else if (!tref_isk(key)) {
+      /* We can rule out const numbers which failed the integerness test
+      ** above. But all other numbers are potential array keys.
+      */
+      if (t->asize == 0) {  /* True sparse tables have an empty array part. */
+	/* Guard that the array part stays empty. */
+	TRef tmp = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_ASIZE);
+	emitir(IRTGI(IR_EQ), tmp, lj_ir_kint(J, 0));
+      } else {
+	lj_trace_err(J, LJ_TRERR_NYITMIX);
+      }
+    }
+  }
+
+  /* Otherwise the key is located in the hash part. */
+  if (t->hmask == 0) {  /* Shortcut for empty hash part. */
+    /* Guard that the hash part stays empty. */
+    TRef tmp = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_HMASK);
+    emitir(IRTGI(IR_EQ), tmp, lj_ir_kint(J, 0));
+    return lj_ir_kkptr(J, niltvg(J2G(J)));
+  }
+  if (tref_isinteger(key))  /* Hash keys are based on numbers, not ints. */
+    key = emitir(IRTN(IR_CONV), key, IRCONV_NUM_INT);
+  if (tref_isk(key)) {
+    /* Optimize lookup of constant hash keys. */
+    MSize hslot = (MSize)((char *)ix->oldv - (char *)&noderef(t->node)[0].val);
+    if (t->hmask > 0 && hslot <= t->hmask*(MSize)sizeof(Node) &&
+	hslot <= 65535*(MSize)sizeof(Node)) {
+      TRef node, kslot;
+      TRef hm = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_HMASK);
+      emitir(IRTGI(IR_EQ), hm, lj_ir_kint(J, (int32_t)t->hmask));
+      node = emitir(IRT(IR_FLOAD, IRT_P32), ix->tab, IRFL_TAB_NODE);
+      kslot = lj_ir_kslot(J, key, hslot / sizeof(Node));
+      return emitir(IRTG(IR_HREFK, IRT_P32), node, kslot);
+    }
+  }
+  /* Fall back to a regular hash lookup. */
+  return emitir(IRT(IR_HREF, IRT_P32), ix->tab, key);
+}
+
+/* Determine whether a key is NOT one of the fast metamethod names. */
+static int nommstr(jit_State *J, TRef key)
+{
+  if (tref_isstr(key)) {
+    if (tref_isk(key)) {
+      GCstr *str = ir_kstr(IR(tref_ref(key)));
+      uint32_t mm;
+      for (mm = 0; mm <= MM_FAST; mm++)
+	if (mmname_str(J2G(J), mm) == str)
+	  return 0;  /* MUST be one the fast metamethod names. */
+    } else {
+      return 0;  /* Variable string key MAY be a metamethod name. */
+    }
+  }
+  return 1;  /* CANNOT be a metamethod name. */
+}
+
+/* Record indexed load/store. */
+TRef lj_record_idx(jit_State *J, RecordIndex *ix)
+{
+  TRef xref;
+  IROp xrefop, loadop;
+  cTValue *oldv;
+
+  while (!tref_istab(ix->tab)) { /* Handle non-table lookup. */
+    /* Never call raw lj_record_idx() on non-table. */
+    lua_assert(ix->idxchain != 0);
+    if (!lj_record_mm_lookup(J, ix, ix->val ? MM_newindex : MM_index))
+      lj_trace_err(J, LJ_TRERR_NOMM);
+  handlemm:
+    if (tref_isfunc(ix->mobj)) {  /* Handle metamethod call. */
+      BCReg func = rec_mm_prep(J, ix->val ? lj_cont_nop : lj_cont_ra);
+      TRef *base = J->base + func;
+      TValue *tv = J->L->base + func;
+      base[0] = ix->mobj; base[1] = ix->tab; base[2] = ix->key;
+      setfuncV(J->L, tv+0, funcV(&ix->mobjv));
+      copyTV(J->L, tv+1, &ix->tabv);
+      copyTV(J->L, tv+2, &ix->keyv);
+      if (ix->val) {
+	base[3] = ix->val;
+	copyTV(J->L, tv+3, &ix->valv);
+	lj_record_call(J, func, 3);  /* mobj(tab, key, val) */
+	return 0;
+      } else {
+	lj_record_call(J, func, 2);  /* res = mobj(tab, key) */
+	return 0;  /* No result yet. */
+      }
+    }
+    /* Otherwise retry lookup with metaobject. */
+    ix->tab = ix->mobj;
+    copyTV(J->L, &ix->tabv, &ix->mobjv);
+    if (--ix->idxchain == 0)
+      lj_trace_err(J, LJ_TRERR_IDXLOOP);
+  }
+
+  /* First catch nil and NaN keys for tables. */
+  if (tvisnil(&ix->keyv) || (tvisnum(&ix->keyv) && tvisnan(&ix->keyv))) {
+    if (ix->val)  /* Better fail early. */
+      lj_trace_err(J, LJ_TRERR_STORENN);
+    if (tref_isk(ix->key)) {
+      if (ix->idxchain && lj_record_mm_lookup(J, ix, MM_index))
+	goto handlemm;
+      return TREF_NIL;
+    }
+  }
+
+  /* Record the key lookup. */
+  xref = rec_idx_key(J, ix);
+  xrefop = IR(tref_ref(xref))->o;
+  loadop = xrefop == IR_AREF ? IR_ALOAD : IR_HLOAD;
+  /* The lj_meta_tset() inconsistency is gone, but better play safe. */
+  oldv = xrefop == IR_KKPTR ? (cTValue *)ir_kptr(IR(tref_ref(xref))) : ix->oldv;
+
+  if (ix->val == 0) {  /* Indexed load */
+    IRType t = itype2irt(oldv);
+    TRef res;
+    if (oldv == niltvg(J2G(J))) {
+      emitir(IRTG(IR_EQ, IRT_P32), xref, lj_ir_kkptr(J, niltvg(J2G(J))));
+      res = TREF_NIL;
+    } else {
+      res = emitir(IRTG(loadop, t), xref, 0);
+    }
+    if (t == IRT_NIL && ix->idxchain && lj_record_mm_lookup(J, ix, MM_index))
+      goto handlemm;
+    if (irtype_ispri(t)) res = TREF_PRI(t);  /* Canonicalize primitives. */
+    return res;
+  } else {  /* Indexed store. */
+    GCtab *mt = tabref(tabV(&ix->tabv)->metatable);
+    int keybarrier = tref_isgcv(ix->key) && !tref_isnil(ix->val);
+    if (tvisnil(oldv)) {  /* Previous value was nil? */
+      /* Need to duplicate the hasmm check for the early guards. */
+      int hasmm = 0;
+      if (ix->idxchain && mt) {
+	cTValue *mo = lj_tab_getstr(mt, mmname_str(J2G(J), MM_newindex));
+	hasmm = mo && !tvisnil(mo);
+      }
+      if (hasmm)
+	emitir(IRTG(loadop, IRT_NIL), xref, 0);  /* Guard for nil value. */
+      else if (xrefop == IR_HREF)
+	emitir(IRTG(oldv == niltvg(J2G(J)) ? IR_EQ : IR_NE, IRT_P32),
+	       xref, lj_ir_kkptr(J, niltvg(J2G(J))));
+      if (ix->idxchain && lj_record_mm_lookup(J, ix, MM_newindex)) {
+	lua_assert(hasmm);
+	goto handlemm;
+      }
+      lua_assert(!hasmm);
+      if (oldv == niltvg(J2G(J))) {  /* Need to insert a new key. */
+	TRef key = ix->key;
+	if (tref_isinteger(key))  /* NEWREF needs a TValue as a key. */
+	  key = emitir(IRTN(IR_CONV), key, IRCONV_NUM_INT);
+	xref = emitir(IRT(IR_NEWREF, IRT_P32), ix->tab, key);
+	keybarrier = 0;  /* NEWREF already takes care of the key barrier. */
+      }
+    } else if (!lj_opt_fwd_wasnonnil(J, loadop, tref_ref(xref))) {
+      /* Cannot derive that the previous value was non-nil, must do checks. */
+      if (xrefop == IR_HREF)  /* Guard against store to niltv. */
+	emitir(IRTG(IR_NE, IRT_P32), xref, lj_ir_kkptr(J, niltvg(J2G(J))));
+      if (ix->idxchain) {  /* Metamethod lookup required? */
+	/* A check for NULL metatable is cheaper (hoistable) than a load. */
+	if (!mt) {
+	  TRef mtref = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_TAB_META);
+	  emitir(IRTG(IR_EQ, IRT_TAB), mtref, lj_ir_knull(J, IRT_TAB));
+	} else {
+	  IRType t = itype2irt(oldv);
+	  emitir(IRTG(loadop, t), xref, 0);  /* Guard for non-nil value. */
+	}
+      }
+    } else {
+      keybarrier = 0;  /* Previous non-nil value kept the key alive. */
+    }
+    /* Convert int to number before storing. */
+    if (!LJ_DUALNUM && tref_isinteger(ix->val))
+      ix->val = emitir(IRTN(IR_CONV), ix->val, IRCONV_NUM_INT);
+    emitir(IRT(loadop+IRDELTA_L2S, tref_type(ix->val)), xref, ix->val);
+    if (keybarrier || tref_isgcv(ix->val))
+      emitir(IRT(IR_TBAR, IRT_NIL), ix->tab, 0);
+    /* Invalidate neg. metamethod cache for stores with certain string keys. */
+    if (!nommstr(J, ix->key)) {
+      TRef fref = emitir(IRT(IR_FREF, IRT_P32), ix->tab, IRFL_TAB_NOMM);
+      emitir(IRT(IR_FSTORE, IRT_U8), fref, lj_ir_kint(J, 0));
+    }
+    J->needsnap = 1;
+    return 0;
+  }
+}
+
+/* -- Upvalue access ------------------------------------------------------ */
+
+/* Check whether upvalue is immutable and ok to constify. */
+static int rec_upvalue_constify(jit_State *J, GCupval *uvp)
+{
+  if (uvp->immutable) {
+    cTValue *o = uvval(uvp);
+    /* Don't constify objects that may retain large amounts of memory. */
+#if LJ_HASFFI
+    if (tviscdata(o)) {
+      GCcdata *cd = cdataV(o);
+      if (!cdataisv(cd) && !(cd->marked & LJ_GC_CDATA_FIN)) {
+	CType *ct = ctype_raw(ctype_ctsG(J2G(J)), cd->ctypeid);
+	if (!ctype_hassize(ct->info) || ct->size <= 16)
+	  return 1;
+      }
+      return 0;
+    }
+#else
+    UNUSED(J);
+#endif
+    if (!(tvistab(o) || tvisudata(o) || tvisthread(o)))
+      return 1;
+  }
+  return 0;
+}
+
+/* Record upvalue load/store. */
+static TRef rec_upvalue(jit_State *J, uint32_t uv, TRef val)
+{
+  GCupval *uvp = &gcref(J->fn->l.uvptr[uv])->uv;
+  TRef fn = getcurrf(J);
+  IRRef uref;
+  int needbarrier = 0;
+  if (rec_upvalue_constify(J, uvp)) {  /* Try to constify immutable upvalue. */
+    TRef tr, kfunc;
+    lua_assert(val == 0);
+    if (!tref_isk(fn)) {  /* Late specialization of current function. */
+      if (J->pt->flags >= PROTO_CLC_POLY)
+	goto noconstify;
+      kfunc = lj_ir_kfunc(J, J->fn);
+      emitir(IRTG(IR_EQ, IRT_FUNC), fn, kfunc);
+      J->base[-1] = TREF_FRAME | kfunc;
+      fn = kfunc;
+    }
+    tr = lj_record_constify(J, uvval(uvp));
+    if (tr)
+      return tr;
+  }
+noconstify:
+  /* Note: this effectively limits LJ_MAX_UPVAL to 127. */
+  uv = (uv << 8) | (hashrot(uvp->dhash, uvp->dhash + HASH_BIAS) & 0xff);
+  if (!uvp->closed) {
+    /* In current stack? */
+    if (uvval(uvp) >= tvref(J->L->stack) &&
+	uvval(uvp) < tvref(J->L->maxstack)) {
+      int32_t slot = (int32_t)(uvval(uvp) - (J->L->base - J->baseslot));
+      if (slot >= 0) {  /* Aliases an SSA slot? */
+	slot -= (int32_t)J->baseslot;  /* Note: slot number may be negative! */
+	/* NYI: add IR to guard that it's still aliasing the same slot. */
+	if (val == 0) {
+	  return getslot(J, slot);
+	} else {
+	  J->base[slot] = val;
+	  if (slot >= (int32_t)J->maxslot) J->maxslot = (BCReg)(slot+1);
+	  return 0;
+	}
+      }
+    }
+    uref = tref_ref(emitir(IRTG(IR_UREFO, IRT_P32), fn, uv));
+  } else {
+    needbarrier = 1;
+    uref = tref_ref(emitir(IRTG(IR_UREFC, IRT_P32), fn, uv));
+  }
+  if (val == 0) {  /* Upvalue load */
+    IRType t = itype2irt(uvval(uvp));
+    TRef res = emitir(IRTG(IR_ULOAD, t), uref, 0);
+    if (irtype_ispri(t)) res = TREF_PRI(t);  /* Canonicalize primitive refs. */
+    return res;
+  } else {  /* Upvalue store. */
+    /* Convert int to number before storing. */
+    if (!LJ_DUALNUM && tref_isinteger(val))
+      val = emitir(IRTN(IR_CONV), val, IRCONV_NUM_INT);
+    emitir(IRT(IR_USTORE, tref_type(val)), uref, val);
+    if (needbarrier && tref_isgcv(val))
+      emitir(IRT(IR_OBAR, IRT_NIL), uref, val);
+    J->needsnap = 1;
+    return 0;
+  }
+}
+
+/* -- Record calls to Lua functions --------------------------------------- */
+
+/* Check unroll limits for calls. */
+static void check_call_unroll(jit_State *J, TraceNo lnk)
+{
+  cTValue *frame = J->L->base - 1;
+  void *pc = mref(frame_func(frame)->l.pc, void);
+  int32_t depth = J->framedepth;
+  int32_t count = 0;
+  if ((J->pt->flags & PROTO_VARARG)) depth--;  /* Vararg frame still missing. */
+  for (; depth > 0; depth--) {  /* Count frames with same prototype. */
+    if (frame_iscont(frame)) depth--;
+    frame = frame_prev(frame);
+    if (mref(frame_func(frame)->l.pc, void) == pc)
+      count++;
+  }
+  if (J->pc == J->startpc) {
+    if (count + J->tailcalled > J->param[JIT_P_recunroll]) {
+      J->pc++;
+      if (J->framedepth + J->retdepth == 0)
+	rec_stop(J, LJ_TRLINK_TAILREC, J->cur.traceno);  /* Tail-recursion. */
+      else
+	rec_stop(J, LJ_TRLINK_UPREC, J->cur.traceno);  /* Up-recursion. */
+    }
+  } else {
+    if (count > J->param[JIT_P_callunroll]) {
+      if (lnk) {  /* Possible tail- or up-recursion. */
+	lj_trace_flush(J, lnk);  /* Flush trace that only returns. */
+	/* Set a small, pseudo-random hotcount for a quick retry of JFUNC*. */
+	hotcount_set(J2GG(J), J->pc+1, LJ_PRNG_BITS(J, 4));
+      }
+      lj_trace_err(J, LJ_TRERR_CUNROLL);
+    }
+  }
+}
+
+/* Record Lua function setup. */
+static void rec_func_setup(jit_State *J)
+{
+  GCproto *pt = J->pt;
+  BCReg s, numparams = pt->numparams;
+  if ((pt->flags & PROTO_NOJIT))
+    lj_trace_err(J, LJ_TRERR_CJITOFF);
+  if (J->baseslot + pt->framesize >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
+  /* Fill up missing parameters with nil. */
+  for (s = J->maxslot; s < numparams; s++)
+    J->base[s] = TREF_NIL;
+  /* The remaining slots should never be read before they are written. */
+  J->maxslot = numparams;
+}
+
+/* Record Lua vararg function setup. */
+static void rec_func_vararg(jit_State *J)
+{
+  GCproto *pt = J->pt;
+  BCReg s, fixargs, vframe = J->maxslot+1;
+  lua_assert((pt->flags & PROTO_VARARG));
+  if (J->baseslot + vframe + pt->framesize >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
+  J->base[vframe-1] = J->base[-1];  /* Copy function up. */
+  /* Copy fixarg slots up and set their original slots to nil. */
+  fixargs = pt->numparams < J->maxslot ? pt->numparams : J->maxslot;
+  for (s = 0; s < fixargs; s++) {
+    J->base[vframe+s] = J->base[s];
+    J->base[s] = TREF_NIL;
+  }
+  J->maxslot = fixargs;
+  J->framedepth++;
+  J->base += vframe;
+  J->baseslot += vframe;
+}
+
+/* Record entry to a Lua function. */
+static void rec_func_lua(jit_State *J)
+{
+  rec_func_setup(J);
+  check_call_unroll(J, 0);
+}
+
+/* Record entry to an already compiled function. */
+static void rec_func_jit(jit_State *J, TraceNo lnk)
+{
+  GCtrace *T;
+  rec_func_setup(J);
+  T = traceref(J, lnk);
+  if (T->linktype == LJ_TRLINK_RETURN) {  /* Trace returns to interpreter? */
+    check_call_unroll(J, lnk);
+    /* Temporarily unpatch JFUNC* to continue recording across function. */
+    J->patchins = *J->pc;
+    J->patchpc = (BCIns *)J->pc;
+    *J->patchpc = T->startins;
+    return;
+  }
+  J->instunroll = 0;  /* Cannot continue across a compiled function. */
+  if (J->pc == J->startpc && J->framedepth + J->retdepth == 0)
+    rec_stop(J, LJ_TRLINK_TAILREC, J->cur.traceno);  /* Extra tail-recursion. */
+  else
+    rec_stop(J, LJ_TRLINK_ROOT, lnk);  /* Link to the function. */
+}
+
+/* -- Vararg handling ----------------------------------------------------- */
+
+/* Detect y = select(x, ...) idiom. */
+static int select_detect(jit_State *J)
+{
+  BCIns ins = J->pc[1];
+  if (bc_op(ins) == BC_CALLM && bc_b(ins) == 2 && bc_c(ins) == 1) {
+    cTValue *func = &J->L->base[bc_a(ins)];
+    if (tvisfunc(func) && funcV(func)->c.ffid == FF_select)
+      return 1;
+  }
+  return 0;
+}
+
+/* Record vararg instruction. */
+static void rec_varg(jit_State *J, BCReg dst, ptrdiff_t nresults)
+{
+  int32_t numparams = J->pt->numparams;
+  ptrdiff_t nvararg = frame_delta(J->L->base-1) - numparams - 1;
+  lua_assert(frame_isvarg(J->L->base-1));
+  if (J->framedepth > 0) {  /* Simple case: varargs defined on-trace. */
+    ptrdiff_t i;
+    if (nvararg < 0) nvararg = 0;
+    if (nresults == -1) {
+      nresults = nvararg;
+      J->maxslot = dst + (BCReg)nvararg;
+    } else if (dst + nresults > J->maxslot) {
+      J->maxslot = dst + (BCReg)nresults;
+    }
+    for (i = 0; i < nresults; i++)
+      J->base[dst+i] = i < nvararg ? getslot(J, i - nvararg - 1) : TREF_NIL;
+  } else {  /* Unknown number of varargs passed to trace. */
+    TRef fr = emitir(IRTI(IR_SLOAD), 0, IRSLOAD_READONLY|IRSLOAD_FRAME);
+    int32_t frofs = 8*(1+numparams)+FRAME_VARG;
+    if (nresults >= 0) {  /* Known fixed number of results. */
+      ptrdiff_t i;
+      if (nvararg > 0) {
+	ptrdiff_t nload = nvararg >= nresults ? nresults : nvararg;
+	TRef vbase;
+	if (nvararg >= nresults)
+	  emitir(IRTGI(IR_GE), fr, lj_ir_kint(J, frofs+8*(int32_t)nresults));
+	else
+	  emitir(IRTGI(IR_EQ), fr, lj_ir_kint(J, frame_ftsz(J->L->base-1)));
+	vbase = emitir(IRTI(IR_SUB), REF_BASE, fr);
+	vbase = emitir(IRT(IR_ADD, IRT_P32), vbase, lj_ir_kint(J, frofs-8));
+	for (i = 0; i < nload; i++) {
+	  IRType t = itype2irt(&J->L->base[i-1-nvararg]);
+	  TRef aref = emitir(IRT(IR_AREF, IRT_P32),
+			     vbase, lj_ir_kint(J, (int32_t)i));
+	  TRef tr = emitir(IRTG(IR_VLOAD, t), aref, 0);
+	  if (irtype_ispri(t)) tr = TREF_PRI(t);  /* Canonicalize primitives. */
+	  J->base[dst+i] = tr;
+	}
+      } else {
+	emitir(IRTGI(IR_LE), fr, lj_ir_kint(J, frofs));
+	nvararg = 0;
+      }
+      for (i = nvararg; i < nresults; i++)
+	J->base[dst+i] = TREF_NIL;
+      if (dst + (BCReg)nresults > J->maxslot)
+	J->maxslot = dst + (BCReg)nresults;
+    } else if (select_detect(J)) {  /* y = select(x, ...) */
+      TRef tridx = J->base[dst-1];
+      TRef tr = TREF_NIL;
+      ptrdiff_t idx = lj_ffrecord_select_mode(J, tridx, &J->L->base[dst-1]);
+      if (idx < 0) goto nyivarg;
+      if (idx != 0 && !tref_isinteger(tridx))
+	tridx = emitir(IRTGI(IR_CONV), tridx, IRCONV_INT_NUM|IRCONV_INDEX);
+      if (idx != 0 && tref_isk(tridx)) {
+	emitir(IRTGI(idx <= nvararg ? IR_GE : IR_LT),
+	       fr, lj_ir_kint(J, frofs+8*(int32_t)idx));
+	frofs -= 8;  /* Bias for 1-based index. */
+      } else if (idx <= nvararg) {  /* Compute size. */
+	TRef tmp = emitir(IRTI(IR_ADD), fr, lj_ir_kint(J, -frofs));
+	if (numparams)
+	  emitir(IRTGI(IR_GE), tmp, lj_ir_kint(J, 0));
+	tr = emitir(IRTI(IR_BSHR), tmp, lj_ir_kint(J, 3));
+	if (idx != 0) {
+	  tridx = emitir(IRTI(IR_ADD), tridx, lj_ir_kint(J, -1));
+	  rec_idx_abc(J, tr, tridx, (uint32_t)nvararg);
+	}
+      } else {
+	TRef tmp = lj_ir_kint(J, frofs);
+	if (idx != 0) {
+	  TRef tmp2 = emitir(IRTI(IR_BSHL), tridx, lj_ir_kint(J, 3));
+	  tmp = emitir(IRTI(IR_ADD), tmp2, tmp);
+	} else {
+	  tr = lj_ir_kint(J, 0);
+	}
+	emitir(IRTGI(IR_LT), fr, tmp);
+      }
+      if (idx != 0 && idx <= nvararg) {
+	IRType t;
+	TRef aref, vbase = emitir(IRTI(IR_SUB), REF_BASE, fr);
+	vbase = emitir(IRT(IR_ADD, IRT_P32), vbase, lj_ir_kint(J, frofs-8));
+	t = itype2irt(&J->L->base[idx-2-nvararg]);
+	aref = emitir(IRT(IR_AREF, IRT_P32), vbase, tridx);
+	tr = emitir(IRTG(IR_VLOAD, t), aref, 0);
+	if (irtype_ispri(t)) tr = TREF_PRI(t);  /* Canonicalize primitives. */
+      }
+      J->base[dst-2] = tr;
+      J->maxslot = dst-1;
+      J->bcskip = 2;  /* Skip CALLM + select. */
+    } else {
+    nyivarg:
+      setintV(&J->errinfo, BC_VARG);
+      lj_trace_err_info(J, LJ_TRERR_NYIBC);
+    }
+  }
+}
+
+/* -- Record allocations -------------------------------------------------- */
+
+static TRef rec_tnew(jit_State *J, uint32_t ah)
+{
+  uint32_t asize = ah & 0x7ff;
+  uint32_t hbits = ah >> 11;
+  if (asize == 0x7ff) asize = 0x801;
+  return emitir(IRTG(IR_TNEW, IRT_TAB), asize, hbits);
+}
+
+/* -- Record bytecode ops ------------------------------------------------- */
+
+/* Prepare for comparison. */
+static void rec_comp_prep(jit_State *J)
+{
+  /* Prevent merging with snapshot #0 (GC exit) since we fixup the PC. */
+  if (J->cur.nsnap == 1 && J->cur.snap[0].ref == J->cur.nins)
+    emitir_raw(IRT(IR_NOP, IRT_NIL), 0, 0);
+  lj_snap_add(J);
+}
+
+/* Fixup comparison. */
+static void rec_comp_fixup(jit_State *J, const BCIns *pc, int cond)
+{
+  BCIns jmpins = pc[1];
+  const BCIns *npc = pc + 2 + (cond ? bc_j(jmpins) : 0);
+  SnapShot *snap = &J->cur.snap[J->cur.nsnap-1];
+  /* Set PC to opposite target to avoid re-recording the comp. in side trace. */
+  J->cur.snapmap[snap->mapofs + snap->nent] = SNAP_MKPC(npc);
+  J->needsnap = 1;
+  if (bc_a(jmpins) < J->maxslot) J->maxslot = bc_a(jmpins);
+  lj_snap_shrink(J);  /* Shrink last snapshot if possible. */
+}
+
+/* Record the next bytecode instruction (_before_ it's executed). */
+void lj_record_ins(jit_State *J)
+{
+  cTValue *lbase;
+  RecordIndex ix;
+  const BCIns *pc;
+  BCIns ins;
+  BCOp op;
+  TRef ra, rb, rc;
+
+  /* Perform post-processing action before recording the next instruction. */
+  if (LJ_UNLIKELY(J->postproc != LJ_POST_NONE)) {
+    switch (J->postproc) {
+    case LJ_POST_FIXCOMP:  /* Fixup comparison. */
+      pc = frame_pc(&J2G(J)->tmptv);
+      rec_comp_fixup(J, pc, (!tvistruecond(&J2G(J)->tmptv2) ^ (bc_op(*pc)&1)));
+      /* fallthrough */
+    case LJ_POST_FIXGUARD:  /* Fixup and emit pending guard. */
+    case LJ_POST_FIXGUARDSNAP:  /* Fixup and emit pending guard and snapshot. */
+      if (!tvistruecond(&J2G(J)->tmptv2)) {
+	J->fold.ins.o ^= 1;  /* Flip guard to opposite. */
+	if (J->postproc == LJ_POST_FIXGUARDSNAP) {
+	  SnapShot *snap = &J->cur.snap[J->cur.nsnap-1];
+	  J->cur.snapmap[snap->mapofs+snap->nent-1]--;  /* False -> true. */
+	}
+      }
+      lj_opt_fold(J);  /* Emit pending guard. */
+      /* fallthrough */
+    case LJ_POST_FIXBOOL:
+      if (!tvistruecond(&J2G(J)->tmptv2)) {
+	BCReg s;
+	TValue *tv = J->L->base;
+	for (s = 0; s < J->maxslot; s++)  /* Fixup stack slot (if any). */
+	  if (J->base[s] == TREF_TRUE && tvisfalse(&tv[s])) {
+	    J->base[s] = TREF_FALSE;
+	    break;
+	  }
+      }
+      break;
+    case LJ_POST_FIXCONST:
+      {
+	BCReg s;
+	TValue *tv = J->L->base;
+	for (s = 0; s < J->maxslot; s++)  /* Constify stack slots (if any). */
+	  if (J->base[s] == TREF_NIL && !tvisnil(&tv[s]))
+	    J->base[s] = lj_record_constify(J, &tv[s]);
+      }
+      break;
+    case LJ_POST_FFRETRY:  /* Suppress recording of retried fast function. */
+      if (bc_op(*J->pc) >= BC__MAX)
+	return;
+      break;
+    default: lua_assert(0); break;
+    }
+    J->postproc = LJ_POST_NONE;
+  }
+
+  /* Need snapshot before recording next bytecode (e.g. after a store). */
+  if (J->needsnap) {
+    J->needsnap = 0;
+    lj_snap_purge(J);
+    lj_snap_add(J);
+    J->mergesnap = 1;
+  }
+
+  /* Skip some bytecodes. */
+  if (LJ_UNLIKELY(J->bcskip > 0)) {
+    J->bcskip--;
+    return;
+  }
+
+  /* Record only closed loops for root traces. */
+  pc = J->pc;
+  if (J->framedepth == 0 &&
+     (MSize)((char *)pc - (char *)J->bc_min) >= J->bc_extent)
+    lj_trace_err(J, LJ_TRERR_LLEAVE);
+
+#ifdef LUA_USE_ASSERT
+  rec_check_slots(J);
+  rec_check_ir(J);
+#endif
+
+  /* Keep a copy of the runtime values of var/num/str operands. */
+#define rav	(&ix.valv)
+#define rbv	(&ix.tabv)
+#define rcv	(&ix.keyv)
+
+  lbase = J->L->base;
+  ins = *pc;
+  op = bc_op(ins);
+  ra = bc_a(ins);
+  ix.val = 0;
+  switch (bcmode_a(op)) {
+  case BCMvar:
+    copyTV(J->L, rav, &lbase[ra]); ix.val = ra = getslot(J, ra); break;
+  default: break;  /* Handled later. */
+  }
+  rb = bc_b(ins);
+  rc = bc_c(ins);
+  switch (bcmode_b(op)) {
+  case BCMnone: rb = 0; rc = bc_d(ins); break;  /* Upgrade rc to 'rd'. */
+  case BCMvar:
+    copyTV(J->L, rbv, &lbase[rb]); ix.tab = rb = getslot(J, rb); break;
+  default: break;  /* Handled later. */
+  }
+  switch (bcmode_c(op)) {
+  case BCMvar:
+    copyTV(J->L, rcv, &lbase[rc]); ix.key = rc = getslot(J, rc); break;
+  case BCMpri: setitype(rcv, ~rc); ix.key = rc = TREF_PRI(IRT_NIL+rc); break;
+  case BCMnum: { cTValue *tv = proto_knumtv(J->pt, rc);
+    copyTV(J->L, rcv, tv); ix.key = rc = tvisint(tv) ? lj_ir_kint(J, intV(tv)) :
+    lj_ir_knumint(J, numV(tv)); } break;
+  case BCMstr: { GCstr *s = gco2str(proto_kgc(J->pt, ~(ptrdiff_t)rc));
+    setstrV(J->L, rcv, s); ix.key = rc = lj_ir_kstr(J, s); } break;
+  default: break;  /* Handled later. */
+  }
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+#if LJ_HASFFI
+    if (tref_iscdata(ra) || tref_iscdata(rc)) {
+      rec_mm_comp_cdata(J, &ix, op, ((int)op & 2) ? MM_le : MM_lt);
+      break;
+    }
+#endif
+    /* Emit nothing for two numeric or string consts. */
+    if (!(tref_isk2(ra,rc) && tref_isnumber_str(ra) && tref_isnumber_str(rc))) {
+      IRType ta = tref_isinteger(ra) ? IRT_INT : tref_type(ra);
+      IRType tc = tref_isinteger(rc) ? IRT_INT : tref_type(rc);
+      int irop;
+      if (ta != tc) {
+	/* Widen mixed number/int comparisons to number/number comparison. */
+	if (ta == IRT_INT && tc == IRT_NUM) {
+	  ra = emitir(IRTN(IR_CONV), ra, IRCONV_NUM_INT);
+	  ta = IRT_NUM;
+	} else if (ta == IRT_NUM && tc == IRT_INT) {
+	  rc = emitir(IRTN(IR_CONV), rc, IRCONV_NUM_INT);
+	} else if (LJ_52) {
+	  ta = IRT_NIL;  /* Force metamethod for different types. */
+	} else if (!((ta == IRT_FALSE || ta == IRT_TRUE) &&
+		     (tc == IRT_FALSE || tc == IRT_TRUE))) {
+	  break;  /* Interpreter will throw for two different types. */
+	}
+      }
+      rec_comp_prep(J);
+      irop = (int)op - (int)BC_ISLT + (int)IR_LT;
+      if (ta == IRT_NUM) {
+	if ((irop & 1)) irop ^= 4;  /* ISGE/ISGT are unordered. */
+	if (!lj_ir_numcmp(numberVnum(rav), numberVnum(rcv), (IROp)irop))
+	  irop ^= 5;
+      } else if (ta == IRT_INT) {
+	if (!lj_ir_numcmp(numberVnum(rav), numberVnum(rcv), (IROp)irop))
+	  irop ^= 1;
+      } else if (ta == IRT_STR) {
+	if (!lj_ir_strcmp(strV(rav), strV(rcv), (IROp)irop)) irop ^= 1;
+	ra = lj_ir_call(J, IRCALL_lj_str_cmp, ra, rc);
+	rc = lj_ir_kint(J, 0);
+	ta = IRT_INT;
+      } else {
+	rec_mm_comp(J, &ix, (int)op);
+	break;
+      }
+      emitir(IRTG(irop, ta), ra, rc);
+      rec_comp_fixup(J, J->pc, ((int)op ^ irop) & 1);
+    }
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+  case BC_ISEQS: case BC_ISNES:
+  case BC_ISEQN: case BC_ISNEN:
+  case BC_ISEQP: case BC_ISNEP:
+#if LJ_HASFFI
+    if (tref_iscdata(ra) || tref_iscdata(rc)) {
+      rec_mm_comp_cdata(J, &ix, op, MM_eq);
+      break;
+    }
+#endif
+    /* Emit nothing for two non-table, non-udata consts. */
+    if (!(tref_isk2(ra, rc) && !(tref_istab(ra) || tref_isudata(ra)))) {
+      int diff;
+      rec_comp_prep(J);
+      diff = lj_record_objcmp(J, ra, rc, rav, rcv);
+      if (diff == 2 || !(tref_istab(ra) || tref_isudata(ra)))
+	rec_comp_fixup(J, J->pc, ((int)op & 1) == !diff);
+      else if (diff == 1)  /* Only check __eq if different, but same type. */
+	rec_mm_equal(J, &ix, (int)op);
+    }
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC:
+    if ((op & 1) == tref_istruecond(rc))
+      rc = 0;  /* Don't store if condition is not true. */
+    /* fallthrough */
+  case BC_IST: case BC_ISF:  /* Type specialization suffices. */
+    if (bc_a(pc[1]) < J->maxslot)
+      J->maxslot = bc_a(pc[1]);  /* Shrink used slots. */
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_NOT:
+    /* Type specialization already forces const result. */
+    rc = tref_istruecond(rc) ? TREF_FALSE : TREF_TRUE;
+    break;
+
+  case BC_LEN:
+    if (tref_isstr(rc))
+      rc = emitir(IRTI(IR_FLOAD), rc, IRFL_STR_LEN);
+    else if (!LJ_52 && tref_istab(rc))
+      rc = lj_ir_call(J, IRCALL_lj_tab_len, rc);
+    else
+      rc = rec_mm_len(J, rc, rcv);
+    break;
+
+  /* -- Arithmetic ops ---------------------------------------------------- */
+
+  case BC_UNM:
+    if (tref_isnumber_str(rc)) {
+      rc = lj_opt_narrow_unm(J, rc, rcv);
+    } else {
+      ix.tab = rc;
+      copyTV(J->L, &ix.tabv, rcv);
+      rc = rec_mm_arith(J, &ix, MM_unm);
+    }
+    break;
+
+  case BC_ADDNV: case BC_SUBNV: case BC_MULNV: case BC_DIVNV: case BC_MODNV:
+    /* Swap rb/rc and rbv/rcv. rav is temp. */
+    ix.tab = rc; ix.key = rc = rb; rb = ix.tab;
+    copyTV(J->L, rav, rbv);
+    copyTV(J->L, rbv, rcv);
+    copyTV(J->L, rcv, rav);
+    if (op == BC_MODNV)
+      goto recmod;
+    /* fallthrough */
+  case BC_ADDVN: case BC_SUBVN: case BC_MULVN: case BC_DIVVN:
+  case BC_ADDVV: case BC_SUBVV: case BC_MULVV: case BC_DIVVV: {
+    MMS mm = bcmode_mm(op);
+    if (tref_isnumber_str(rb) && tref_isnumber_str(rc))
+      rc = lj_opt_narrow_arith(J, rb, rc, rbv, rcv,
+			       (int)mm - (int)MM_add + (int)IR_ADD);
+    else
+      rc = rec_mm_arith(J, &ix, mm);
+    break;
+    }
+
+  case BC_MODVN: case BC_MODVV:
+  recmod:
+    if (tref_isnumber_str(rb) && tref_isnumber_str(rc))
+      rc = lj_opt_narrow_mod(J, rb, rc, rcv);
+    else
+      rc = rec_mm_arith(J, &ix, MM_mod);
+    break;
+
+  case BC_POW:
+    if (tref_isnumber_str(rb) && tref_isnumber_str(rc))
+      rc = lj_opt_narrow_pow(J, lj_ir_tonum(J, rb), rc, rcv);
+    else
+      rc = rec_mm_arith(J, &ix, MM_pow);
+    break;
+
+  /* -- Constant and move ops --------------------------------------------- */
+
+  case BC_MOV:
+    /* Clear gap of method call to avoid resurrecting previous refs. */
+    if (ra > J->maxslot) J->base[ra-1] = 0;
+    break;
+  case BC_KSTR: case BC_KNUM: case BC_KPRI:
+    break;
+  case BC_KSHORT:
+    rc = lj_ir_kint(J, (int32_t)(int16_t)rc);
+    break;
+  case BC_KNIL:
+    while (ra <= rc)
+      J->base[ra++] = TREF_NIL;
+    if (rc >= J->maxslot) J->maxslot = rc+1;
+    break;
+#if LJ_HASFFI
+  case BC_KCDATA:
+    rc = lj_ir_kgc(J, proto_kgc(J->pt, ~(ptrdiff_t)rc), IRT_CDATA);
+    break;
+#endif
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    rc = rec_upvalue(J, rc, 0);
+    break;
+  case BC_USETV: case BC_USETS: case BC_USETN: case BC_USETP:
+    rec_upvalue(J, ra, rc);
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_GGET: case BC_GSET:
+    settabV(J->L, &ix.tabv, tabref(J->fn->l.env));
+    ix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), getcurrf(J), IRFL_FUNC_ENV);
+    ix.idxchain = LJ_MAX_IDXCHAIN;
+    rc = lj_record_idx(J, &ix);
+    break;
+
+  case BC_TGETB: case BC_TSETB:
+    setintV(&ix.keyv, (int32_t)rc);
+    ix.key = lj_ir_kint(J, (int32_t)rc);
+    /* fallthrough */
+  case BC_TGETV: case BC_TGETS: case BC_TSETV: case BC_TSETS:
+    ix.idxchain = LJ_MAX_IDXCHAIN;
+    rc = lj_record_idx(J, &ix);
+    break;
+
+  case BC_TNEW:
+    rc = rec_tnew(J, rc);
+    break;
+  case BC_TDUP:
+    rc = emitir(IRTG(IR_TDUP, IRT_TAB),
+		lj_ir_ktab(J, gco2tab(proto_kgc(J->pt, ~(ptrdiff_t)rc))), 0);
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_ITERC:
+    J->base[ra] = getslot(J, ra-3);
+    J->base[ra+1] = getslot(J, ra-2);
+    J->base[ra+2] = getslot(J, ra-1);
+    { /* Do the actual copy now because lj_record_call needs the values. */
+      TValue *b = &J->L->base[ra];
+      copyTV(J->L, b, b-3);
+      copyTV(J->L, b+1, b-2);
+      copyTV(J->L, b+2, b-1);
+    }
+    lj_record_call(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  /* L->top is set to L->base+ra+rc+NARGS-1+1. See lj_dispatch_ins(). */
+  case BC_CALLM:
+    rc = (BCReg)(J->L->top - J->L->base) - ra;
+    /* fallthrough */
+  case BC_CALL:
+    lj_record_call(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  case BC_CALLMT:
+    rc = (BCReg)(J->L->top - J->L->base) - ra;
+    /* fallthrough */
+  case BC_CALLT:
+    lj_record_tailcall(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  case BC_VARG:
+    rec_varg(J, ra, (ptrdiff_t)rb-1);
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    /* L->top is set to L->base+ra+rc+NRESULTS-1, see lj_dispatch_ins(). */
+    rc = (BCReg)(J->L->top - J->L->base) - ra + 1;
+    /* fallthrough */
+  case BC_RET: case BC_RET0: case BC_RET1:
+    lj_record_ret(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORI:
+    if (rec_for(J, pc, 0) != LOOPEV_LEAVE)
+      J->loopref = J->cur.nins;
+    break;
+  case BC_JFORI:
+    lua_assert(bc_op(pc[(ptrdiff_t)rc-BCBIAS_J]) == BC_JFORL);
+    if (rec_for(J, pc, 0) != LOOPEV_LEAVE)  /* Link to existing loop. */
+      rec_stop(J, LJ_TRLINK_ROOT, bc_d(pc[(ptrdiff_t)rc-BCBIAS_J]));
+    /* Continue tracing if the loop is not entered. */
+    break;
+
+  case BC_FORL:
+    rec_loop_interp(J, pc, rec_for(J, pc+((ptrdiff_t)rc-BCBIAS_J), 1));
+    break;
+  case BC_ITERL:
+    rec_loop_interp(J, pc, rec_iterl(J, *pc));
+    break;
+  case BC_LOOP:
+    rec_loop_interp(J, pc, rec_loop(J, ra));
+    break;
+
+  case BC_JFORL:
+    rec_loop_jit(J, rc, rec_for(J, pc+bc_j(traceref(J, rc)->startins), 1));
+    break;
+  case BC_JITERL:
+    rec_loop_jit(J, rc, rec_iterl(J, traceref(J, rc)->startins));
+    break;
+  case BC_JLOOP:
+    rec_loop_jit(J, rc, rec_loop(J, ra));
+    break;
+
+  case BC_IFORL:
+  case BC_IITERL:
+  case BC_ILOOP:
+  case BC_IFUNCF:
+  case BC_IFUNCV:
+    lj_trace_err(J, LJ_TRERR_BLACKL);
+    break;
+
+  case BC_JMP:
+    if (ra < J->maxslot)
+      J->maxslot = ra;  /* Shrink used slots. */
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    rec_func_lua(J);
+    break;
+  case BC_JFUNCF:
+    rec_func_jit(J, rc);
+    break;
+
+  case BC_FUNCV:
+    rec_func_vararg(J);
+    rec_func_lua(J);
+    break;
+  case BC_JFUNCV:
+    lua_assert(0);  /* Cannot happen. No hotcall counting for varag funcs. */
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    lj_ffrecord_func(J);
+    break;
+
+  default:
+    if (op >= BC__MAX) {
+      lj_ffrecord_func(J);
+      break;
+    }
+    /* fallthrough */
+  case BC_ITERN:
+  case BC_ISNEXT:
+  case BC_CAT:
+  case BC_UCLO:
+  case BC_FNEW:
+  case BC_TSETM:
+    setintV(&J->errinfo, (int32_t)op);
+    lj_trace_err_info(J, LJ_TRERR_NYIBC);
+    break;
+  }
+
+  /* rc == 0 if we have no result yet, e.g. pending __index metamethod call. */
+  if (bcmode_a(op) == BCMdst && rc) {
+    J->base[ra] = rc;
+    if (ra >= J->maxslot) J->maxslot = ra+1;
+  }
+
+#undef rav
+#undef rbv
+#undef rcv
+
+  /* Limit the number of recorded IR instructions. */
+  if (J->cur.nins > REF_FIRST+(IRRef)J->param[JIT_P_maxrecord])
+    lj_trace_err(J, LJ_TRERR_TRACEOV);
+}
+
+/* -- Recording setup ----------------------------------------------------- */
+
+/* Setup recording for a root trace started by a hot loop. */
+static const BCIns *rec_setup_root(jit_State *J)
+{
+  /* Determine the next PC and the bytecode range for the loop. */
+  const BCIns *pcj, *pc = J->pc;
+  BCIns ins = *pc;
+  BCReg ra = bc_a(ins);
+  switch (bc_op(ins)) {
+  case BC_FORL:
+    J->bc_extent = (MSize)(-bc_j(ins))*sizeof(BCIns);
+    pc += 1+bc_j(ins);
+    J->bc_min = pc;
+    break;
+  case BC_ITERL:
+    lua_assert(bc_op(pc[-1]) == BC_ITERC);
+    J->maxslot = ra + bc_b(pc[-1]) - 1;
+    J->bc_extent = (MSize)(-bc_j(ins))*sizeof(BCIns);
+    pc += 1+bc_j(ins);
+    lua_assert(bc_op(pc[-1]) == BC_JMP);
+    J->bc_min = pc;
+    break;
+  case BC_LOOP:
+    /* Only check BC range for real loops, but not for "repeat until true". */
+    pcj = pc + bc_j(ins);
+    ins = *pcj;
+    if (bc_op(ins) == BC_JMP && bc_j(ins) < 0) {
+      J->bc_min = pcj+1 + bc_j(ins);
+      J->bc_extent = (MSize)(-bc_j(ins))*sizeof(BCIns);
+    }
+    J->maxslot = ra;
+    pc++;
+    break;
+  case BC_RET:
+  case BC_RET0:
+  case BC_RET1:
+    /* No bytecode range check for down-recursive root traces. */
+    J->maxslot = ra + bc_d(ins) - 1;
+    break;
+  case BC_FUNCF:
+    /* No bytecode range check for root traces started by a hot call. */
+    J->maxslot = J->pt->numparams;
+    pc++;
+    break;
+  default:
+    lua_assert(0);
+    break;
+  }
+  return pc;
+}
+
+/* Setup for recording a new trace. */
+void lj_record_setup(jit_State *J)
+{
+  uint32_t i;
+
+  /* Initialize state related to current trace. */
+  memset(J->slot, 0, sizeof(J->slot));
+  memset(J->chain, 0, sizeof(J->chain));
+  memset(J->bpropcache, 0, sizeof(J->bpropcache));
+  J->scev.idx = REF_NIL;
+
+  J->baseslot = 1;  /* Invoking function is at base[-1]. */
+  J->base = J->slot + J->baseslot;
+  J->maxslot = 0;
+  J->framedepth = 0;
+  J->retdepth = 0;
+
+  J->instunroll = J->param[JIT_P_instunroll];
+  J->loopunroll = J->param[JIT_P_loopunroll];
+  J->tailcalled = 0;
+  J->loopref = 0;
+
+  J->bc_min = NULL;  /* Means no limit. */
+  J->bc_extent = ~(MSize)0;
+
+  /* Emit instructions for fixed references. Also triggers initial IR alloc. */
+  emitir_raw(IRT(IR_BASE, IRT_P32), J->parent, J->exitno);
+  for (i = 0; i <= 2; i++) {
+    IRIns *ir = IR(REF_NIL-i);
+    ir->i = 0;
+    ir->t.irt = (uint8_t)(IRT_NIL+i);
+    ir->o = IR_KPRI;
+    ir->prev = 0;
+  }
+  J->cur.nk = REF_TRUE;
+
+  J->startpc = J->pc;
+  setmref(J->cur.startpc, J->pc);
+  if (J->parent) {  /* Side trace. */
+    GCtrace *T = traceref(J, J->parent);
+    TraceNo root = T->root ? T->root : J->parent;
+    J->cur.root = (uint16_t)root;
+    J->cur.startins = BCINS_AD(BC_JMP, 0, 0);
+    /* Check whether we could at least potentially form an extra loop. */
+    if (J->exitno == 0 && T->snap[0].nent == 0) {
+      /* We can narrow a FORL for some side traces, too. */
+      if (J->pc > proto_bc(J->pt) && bc_op(J->pc[-1]) == BC_JFORI &&
+	  bc_d(J->pc[bc_j(J->pc[-1])-1]) == root) {
+	lj_snap_add(J);
+	rec_for_loop(J, J->pc-1, &J->scev, 1);
+	goto sidecheck;
+      }
+    } else {
+      J->startpc = NULL;  /* Prevent forming an extra loop. */
+    }
+    lj_snap_replay(J, T);
+  sidecheck:
+    if (traceref(J, J->cur.root)->nchild >= J->param[JIT_P_maxside] ||
+	T->snap[J->exitno].count >= J->param[JIT_P_hotexit] +
+				    J->param[JIT_P_tryside]) {
+      rec_stop(J, LJ_TRLINK_INTERP, 0);
+    }
+  } else {  /* Root trace. */
+    J->cur.root = 0;
+    J->cur.startins = *J->pc;
+    J->pc = rec_setup_root(J);
+    /* Note: the loop instruction itself is recorded at the end and not
+    ** at the start! So snapshot #0 needs to point to the *next* instruction.
+    */
+    lj_snap_add(J);
+    if (bc_op(J->cur.startins) == BC_FORL)
+      rec_for_loop(J, J->pc-1, &J->scev, 1);
+    if (1 + J->pt->framesize >= LJ_MAX_JSLOTS)
+      lj_trace_err(J, LJ_TRERR_STACKOV);
+  }
+#ifdef LUAJIT_ENABLE_CHECKHOOK
+  /* Regularly check for instruction/line hooks from compiled code and
+  ** exit to the interpreter if the hooks are set.
+  **
+  ** This is a compile-time option and disabled by default, since the
+  ** hook checks may be quite expensive in tight loops.
+  **
+  ** Note this is only useful if hooks are *not* set most of the time.
+  ** Use this only if you want to *asynchronously* interrupt the execution.
+  **
+  ** You can set the instruction hook via lua_sethook() with a count of 1
+  ** from a signal handler or another native thread. Please have a look
+  ** at the first few functions in luajit.c for an example (Ctrl-C handler).
+  */
+  {
+    TRef tr = emitir(IRT(IR_XLOAD, IRT_U8),
+		     lj_ir_kptr(J, &J2G(J)->hookmask), IRXLOAD_VOLATILE);
+    tr = emitir(IRTI(IR_BAND), tr, lj_ir_kint(J, (LUA_MASKLINE|LUA_MASKCOUNT)));
+    emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, 0));
+  }
+#endif
+}
+
+#undef IR
+#undef emitir_raw
+#undef emitir
+
+#endif
diff --git a/lib/luajit/src/lj_record.h b/lib/luajit/src/lj_record.h
new file mode 100644
index 00000000..940e105f
--- /dev/null
+++ b/lib/luajit/src/lj_record.h
@@ -0,0 +1,44 @@
+/*
+** Trace recorder (bytecode -> SSA IR).
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_RECORD_H
+#define _LJ_RECORD_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+/* Context for recording an indexed load/store. */
+typedef struct RecordIndex {
+  TValue tabv;		/* Runtime value of table (or indexed object). */
+  TValue keyv;		/* Runtime value of key. */
+  TValue valv;		/* Runtime value of stored value. */
+  TValue mobjv;		/* Runtime value of metamethod object. */
+  GCtab *mtv;		/* Runtime value of metatable object. */
+  cTValue *oldv;	/* Runtime value of previously stored value. */
+  TRef tab;		/* Table (or indexed object) reference. */
+  TRef key;		/* Key reference. */
+  TRef val;		/* Value reference for a store or 0 for a load. */
+  TRef mt;		/* Metatable reference. */
+  TRef mobj;		/* Metamethod object reference. */
+  int idxchain;		/* Index indirections left or 0 for raw lookup. */
+} RecordIndex;
+
+LJ_FUNC int lj_record_objcmp(jit_State *J, TRef a, TRef b,
+			     cTValue *av, cTValue *bv);
+LJ_FUNC TRef lj_record_constify(jit_State *J, cTValue *o);
+
+LJ_FUNC void lj_record_call(jit_State *J, BCReg func, ptrdiff_t nargs);
+LJ_FUNC void lj_record_tailcall(jit_State *J, BCReg func, ptrdiff_t nargs);
+LJ_FUNC void lj_record_ret(jit_State *J, BCReg rbase, ptrdiff_t gotresults);
+
+LJ_FUNC int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm);
+LJ_FUNC TRef lj_record_idx(jit_State *J, RecordIndex *ix);
+
+LJ_FUNC void lj_record_ins(jit_State *J);
+LJ_FUNC void lj_record_setup(jit_State *J);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_snap.c b/lib/luajit/src/lj_snap.c
new file mode 100644
index 00000000..1c978c26
--- /dev/null
+++ b/lib/luajit/src/lj_snap.c
@@ -0,0 +1,865 @@
+/*
+** Snapshot handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_snap_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_target.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#endif
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Emit raw IR without passing through optimizations. */
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- Snapshot buffer allocation ------------------------------------------ */
+
+/* Grow snapshot buffer. */
+void lj_snap_grow_buf_(jit_State *J, MSize need)
+{
+  MSize maxsnap = (MSize)J->param[JIT_P_maxsnap];
+  if (need > maxsnap)
+    lj_trace_err(J, LJ_TRERR_SNAPOV);
+  lj_mem_growvec(J->L, J->snapbuf, J->sizesnap, maxsnap, SnapShot);
+  J->cur.snap = J->snapbuf;
+}
+
+/* Grow snapshot map buffer. */
+void lj_snap_grow_map_(jit_State *J, MSize need)
+{
+  if (need < 2*J->sizesnapmap)
+    need = 2*J->sizesnapmap;
+  else if (need < 64)
+    need = 64;
+  J->snapmapbuf = (SnapEntry *)lj_mem_realloc(J->L, J->snapmapbuf,
+		    J->sizesnapmap*sizeof(SnapEntry), need*sizeof(SnapEntry));
+  J->cur.snapmap = J->snapmapbuf;
+  J->sizesnapmap = need;
+}
+
+/* -- Snapshot generation ------------------------------------------------- */
+
+/* Add all modified slots to the snapshot. */
+static MSize snapshot_slots(jit_State *J, SnapEntry *map, BCReg nslots)
+{
+  IRRef retf = J->chain[IR_RETF];  /* Limits SLOAD restore elimination. */
+  BCReg s;
+  MSize n = 0;
+  for (s = 0; s < nslots; s++) {
+    TRef tr = J->slot[s];
+    IRRef ref = tref_ref(tr);
+    if (ref) {
+      SnapEntry sn = SNAP_TR(s, tr);
+      IRIns *ir = IR(ref);
+      if (!(sn & (SNAP_CONT|SNAP_FRAME)) &&
+	  ir->o == IR_SLOAD && ir->op1 == s && ref > retf) {
+	/* No need to snapshot unmodified non-inherited slots. */
+	if (!(ir->op2 & IRSLOAD_INHERIT))
+	  continue;
+	/* No need to restore readonly slots and unmodified non-parent slots. */
+	if (!(LJ_DUALNUM && (ir->op2 & IRSLOAD_CONVERT)) &&
+	    (ir->op2 & (IRSLOAD_READONLY|IRSLOAD_PARENT)) != IRSLOAD_PARENT)
+	  sn |= SNAP_NORESTORE;
+      }
+      if (LJ_SOFTFP && irt_isnum(ir->t))
+	sn |= SNAP_SOFTFPNUM;
+      map[n++] = sn;
+    }
+  }
+  return n;
+}
+
+/* Add frame links at the end of the snapshot. */
+static BCReg snapshot_framelinks(jit_State *J, SnapEntry *map)
+{
+  cTValue *frame = J->L->base - 1;
+  cTValue *lim = J->L->base - J->baseslot;
+  cTValue *ftop = frame + funcproto(frame_func(frame))->framesize;
+  MSize f = 0;
+  map[f++] = SNAP_MKPC(J->pc);  /* The current PC is always the first entry. */
+  while (frame > lim) {  /* Backwards traversal of all frames above base. */
+    if (frame_islua(frame)) {
+      map[f++] = SNAP_MKPC(frame_pc(frame));
+      frame = frame_prevl(frame);
+      if (frame + funcproto(frame_func(frame))->framesize > ftop)
+	ftop = frame + funcproto(frame_func(frame))->framesize;
+    } else if (frame_iscont(frame)) {
+      map[f++] = SNAP_MKFTSZ(frame_ftsz(frame));
+      map[f++] = SNAP_MKPC(frame_contpc(frame));
+      frame = frame_prevd(frame);
+    } else {
+      lua_assert(!frame_isc(frame));
+      map[f++] = SNAP_MKFTSZ(frame_ftsz(frame));
+      frame = frame_prevd(frame);
+    }
+  }
+  lua_assert(f == (MSize)(1 + J->framedepth));
+  return (BCReg)(ftop - lim);
+}
+
+/* Take a snapshot of the current stack. */
+static void snapshot_stack(jit_State *J, SnapShot *snap, MSize nsnapmap)
+{
+  BCReg nslots = J->baseslot + J->maxslot;
+  MSize nent;
+  SnapEntry *p;
+  /* Conservative estimate. */
+  lj_snap_grow_map(J, nsnapmap + nslots + (MSize)J->framedepth+1);
+  p = &J->cur.snapmap[nsnapmap];
+  nent = snapshot_slots(J, p, nslots);
+  snap->topslot = (uint8_t)snapshot_framelinks(J, p + nent);
+  snap->mapofs = (uint16_t)nsnapmap;
+  snap->ref = (IRRef1)J->cur.nins;
+  snap->nent = (uint8_t)nent;
+  snap->nslots = (uint8_t)nslots;
+  snap->count = 0;
+  J->cur.nsnapmap = (uint16_t)(nsnapmap + nent + 1 + J->framedepth);
+}
+
+/* Add or merge a snapshot. */
+void lj_snap_add(jit_State *J)
+{
+  MSize nsnap = J->cur.nsnap;
+  MSize nsnapmap = J->cur.nsnapmap;
+  /* Merge if no ins. inbetween or if requested and no guard inbetween. */
+  if (J->mergesnap ? !irt_isguard(J->guardemit) :
+      (nsnap > 0 && J->cur.snap[nsnap-1].ref == J->cur.nins)) {
+    if (nsnap == 1) {  /* But preserve snap #0 PC. */
+      emitir_raw(IRT(IR_NOP, IRT_NIL), 0, 0);
+      goto nomerge;
+    }
+    nsnapmap = J->cur.snap[--nsnap].mapofs;
+  } else {
+  nomerge:
+    lj_snap_grow_buf(J, nsnap+1);
+    J->cur.nsnap = (uint16_t)(nsnap+1);
+  }
+  J->mergesnap = 0;
+  J->guardemit.irt = 0;
+  snapshot_stack(J, &J->cur.snap[nsnap], nsnapmap);
+}
+
+/* -- Snapshot modification ----------------------------------------------- */
+
+#define SNAP_USEDEF_SLOTS	(LJ_MAX_JSLOTS+LJ_STACK_EXTRA)
+
+/* Find unused slots with reaching-definitions bytecode data-flow analysis. */
+static BCReg snap_usedef(jit_State *J, uint8_t *udf,
+			 const BCIns *pc, BCReg maxslot)
+{
+  BCReg s;
+  GCobj *o;
+
+  if (maxslot == 0) return 0;
+#ifdef LUAJIT_USE_VALGRIND
+  /* Avoid errors for harmless reads beyond maxslot. */
+  memset(udf, 1, SNAP_USEDEF_SLOTS);
+#else
+  memset(udf, 1, maxslot);
+#endif
+
+  /* Treat open upvalues as used. */
+  o = gcref(J->L->openupval);
+  while (o) {
+    if (uvval(gco2uv(o)) < J->L->base) break;
+    udf[uvval(gco2uv(o)) - J->L->base] = 0;
+    o = gcref(o->gch.nextgc);
+  }
+
+#define USE_SLOT(s)		udf[(s)] &= ~1
+#define DEF_SLOT(s)		udf[(s)] *= 3
+
+  /* Scan through following bytecode and check for uses/defs. */
+  lua_assert(pc >= proto_bc(J->pt) && pc < proto_bc(J->pt) + J->pt->sizebc);
+  for (;;) {
+    BCIns ins = *pc++;
+    BCOp op = bc_op(ins);
+    switch (bcmode_b(op)) {
+    case BCMvar: USE_SLOT(bc_b(ins)); break;
+    default: break;
+    }
+    switch (bcmode_c(op)) {
+    case BCMvar: USE_SLOT(bc_c(ins)); break;
+    case BCMrbase:
+      lua_assert(op == BC_CAT);
+      for (s = bc_b(ins); s <= bc_c(ins); s++) USE_SLOT(s);
+      for (; s < maxslot; s++) DEF_SLOT(s);
+      break;
+    case BCMjump:
+    handle_jump: {
+      BCReg minslot = bc_a(ins);
+      if (op >= BC_FORI && op <= BC_JFORL) minslot += FORL_EXT;
+      else if (op >= BC_ITERL && op <= BC_JITERL) minslot += bc_b(pc[-2])-1;
+      else if (op == BC_UCLO) { pc += bc_j(ins); break; }
+      for (s = minslot; s < maxslot; s++) DEF_SLOT(s);
+      return minslot < maxslot ? minslot : maxslot;
+      }
+    case BCMlit:
+      if (op == BC_JFORL || op == BC_JITERL || op == BC_JLOOP) {
+	goto handle_jump;
+      } else if (bc_isret(op)) {
+	BCReg top = op == BC_RETM ? maxslot : (bc_a(ins) + bc_d(ins)-1);
+	for (s = 0; s < bc_a(ins); s++) DEF_SLOT(s);
+	for (; s < top; s++) USE_SLOT(s);
+	for (; s < maxslot; s++) DEF_SLOT(s);
+	return 0;
+      }
+      break;
+    case BCMfunc: return maxslot;  /* NYI: will abort, anyway. */
+    default: break;
+    }
+    switch (bcmode_a(op)) {
+    case BCMvar: USE_SLOT(bc_a(ins)); break;
+    case BCMdst:
+       if (!(op == BC_ISTC || op == BC_ISFC)) DEF_SLOT(bc_a(ins));
+       break;
+    case BCMbase:
+      if (op >= BC_CALLM && op <= BC_VARG) {
+	BCReg top = (op == BC_CALLM || op == BC_CALLMT || bc_c(ins) == 0) ?
+		    maxslot : (bc_a(ins) + bc_c(ins));
+	s = bc_a(ins) - ((op == BC_ITERC || op == BC_ITERN) ? 3 : 0);
+	for (; s < top; s++) USE_SLOT(s);
+	for (; s < maxslot; s++) DEF_SLOT(s);
+	if (op == BC_CALLT || op == BC_CALLMT) {
+	  for (s = 0; s < bc_a(ins); s++) DEF_SLOT(s);
+	  return 0;
+	}
+      } else if (op == BC_KNIL) {
+	for (s = bc_a(ins); s <= bc_d(ins); s++) DEF_SLOT(s);
+      } else if (op == BC_TSETM) {
+	for (s = bc_a(ins)-1; s < maxslot; s++) USE_SLOT(s);
+      }
+      break;
+    default: break;
+    }
+    lua_assert(pc >= proto_bc(J->pt) && pc < proto_bc(J->pt) + J->pt->sizebc);
+  }
+
+#undef USE_SLOT
+#undef DEF_SLOT
+
+  return 0;  /* unreachable */
+}
+
+/* Purge dead slots before the next snapshot. */
+void lj_snap_purge(jit_State *J)
+{
+  uint8_t udf[SNAP_USEDEF_SLOTS];
+  BCReg maxslot = J->maxslot;
+  BCReg s = snap_usedef(J, udf, J->pc, maxslot);
+  for (; s < maxslot; s++)
+    if (udf[s] != 0)
+      J->base[s] = 0;  /* Purge dead slots. */
+}
+
+/* Shrink last snapshot. */
+void lj_snap_shrink(jit_State *J)
+{
+  SnapShot *snap = &J->cur.snap[J->cur.nsnap-1];
+  SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+  MSize n, m, nlim, nent = snap->nent;
+  uint8_t udf[SNAP_USEDEF_SLOTS];
+  BCReg maxslot = J->maxslot;
+  BCReg minslot = snap_usedef(J, udf, snap_pc(map[nent]), maxslot);
+  BCReg baseslot = J->baseslot;
+  maxslot += baseslot;
+  minslot += baseslot;
+  snap->nslots = (uint8_t)maxslot;
+  for (n = m = 0; n < nent; n++) {  /* Remove unused slots from snapshot. */
+    BCReg s = snap_slot(map[n]);
+    if (s < minslot || (s < maxslot && udf[s-baseslot] == 0))
+      map[m++] = map[n];  /* Only copy used slots. */
+  }
+  snap->nent = (uint8_t)m;
+  nlim = J->cur.nsnapmap - snap->mapofs - 1;
+  while (n <= nlim) map[m++] = map[n++];  /* Move PC + frame links down. */
+  J->cur.nsnapmap = (uint16_t)(snap->mapofs + m);  /* Free up space in map. */
+}
+
+/* -- Snapshot access ----------------------------------------------------- */
+
+/* Initialize a Bloom Filter with all renamed refs.
+** There are very few renames (often none), so the filter has
+** very few bits set. This makes it suitable for negative filtering.
+*/
+static BloomFilter snap_renamefilter(GCtrace *T, SnapNo lim)
+{
+  BloomFilter rfilt = 0;
+  IRIns *ir;
+  for (ir = &T->ir[T->nins-1]; ir->o == IR_RENAME; ir--)
+    if (ir->op2 <= lim)
+      bloomset(rfilt, ir->op1);
+  return rfilt;
+}
+
+/* Process matching renames to find the original RegSP. */
+static RegSP snap_renameref(GCtrace *T, SnapNo lim, IRRef ref, RegSP rs)
+{
+  IRIns *ir;
+  for (ir = &T->ir[T->nins-1]; ir->o == IR_RENAME; ir--)
+    if (ir->op1 == ref && ir->op2 <= lim)
+      rs = ir->prev;
+  return rs;
+}
+
+/* Copy RegSP from parent snapshot to the parent links of the IR. */
+IRIns *lj_snap_regspmap(GCtrace *T, SnapNo snapno, IRIns *ir)
+{
+  SnapShot *snap = &T->snap[snapno];
+  SnapEntry *map = &T->snapmap[snap->mapofs];
+  BloomFilter rfilt = snap_renamefilter(T, snapno);
+  MSize n = 0;
+  IRRef ref = 0;
+  for ( ; ; ir++) {
+    uint32_t rs;
+    if (ir->o == IR_SLOAD) {
+      if (!(ir->op2 & IRSLOAD_PARENT)) break;
+      for ( ; ; n++) {
+	lua_assert(n < snap->nent);
+	if (snap_slot(map[n]) == ir->op1) {
+	  ref = snap_ref(map[n++]);
+	  break;
+	}
+      }
+    } else if (LJ_SOFTFP && ir->o == IR_HIOP) {
+      ref++;
+    } else if (ir->o == IR_PVAL) {
+      ref = ir->op1 + REF_BIAS;
+    } else {
+      break;
+    }
+    rs = T->ir[ref].prev;
+    if (bloomtest(rfilt, ref))
+      rs = snap_renameref(T, snapno, ref, rs);
+    ir->prev = (uint16_t)rs;
+    lua_assert(regsp_used(rs));
+  }
+  return ir;
+}
+
+/* -- Snapshot replay ----------------------------------------------------- */
+
+/* Replay constant from parent trace. */
+static TRef snap_replay_const(jit_State *J, IRIns *ir)
+{
+  /* Only have to deal with constants that can occur in stack slots. */
+  switch ((IROp)ir->o) {
+  case IR_KPRI: return TREF_PRI(irt_type(ir->t));
+  case IR_KINT: return lj_ir_kint(J, ir->i);
+  case IR_KGC: return lj_ir_kgc(J, ir_kgc(ir), irt_t(ir->t));
+  case IR_KNUM: return lj_ir_k64(J, IR_KNUM, ir_knum(ir));
+  case IR_KINT64: return lj_ir_k64(J, IR_KINT64, ir_kint64(ir));
+  case IR_KPTR: return lj_ir_kptr(J, ir_kptr(ir));  /* Continuation. */
+  default: lua_assert(0); return TREF_NIL; break;
+  }
+}
+
+/* De-duplicate parent reference. */
+static TRef snap_dedup(jit_State *J, SnapEntry *map, MSize nmax, IRRef ref)
+{
+  MSize j;
+  for (j = 0; j < nmax; j++)
+    if (snap_ref(map[j]) == ref)
+      return J->slot[snap_slot(map[j])] & ~(SNAP_CONT|SNAP_FRAME);
+  return 0;
+}
+
+/* Emit parent reference with de-duplication. */
+static TRef snap_pref(jit_State *J, GCtrace *T, SnapEntry *map, MSize nmax,
+		      BloomFilter seen, IRRef ref)
+{
+  IRIns *ir = &T->ir[ref];
+  TRef tr;
+  if (irref_isk(ref))
+    tr = snap_replay_const(J, ir);
+  else if (!regsp_used(ir->prev))
+    tr = 0;
+  else if (!bloomtest(seen, ref) || (tr = snap_dedup(J, map, nmax, ref)) == 0)
+    tr = emitir(IRT(IR_PVAL, irt_type(ir->t)), ref - REF_BIAS, 0);
+  return tr;
+}
+
+/* Check whether a sunk store corresponds to an allocation. Slow path. */
+static int snap_sunk_store2(jit_State *J, IRIns *ira, IRIns *irs)
+{
+  if (irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+      irs->o == IR_FSTORE || irs->o == IR_XSTORE) {
+    IRIns *irk = IR(irs->op1);
+    if (irk->o == IR_AREF || irk->o == IR_HREFK)
+      irk = IR(irk->op1);
+    return (IR(irk->op1) == ira);
+  }
+  return 0;
+}
+
+/* Check whether a sunk store corresponds to an allocation. Fast path. */
+static LJ_AINLINE int snap_sunk_store(jit_State *J, IRIns *ira, IRIns *irs)
+{
+  if (irs->s != 255)
+    return (ira + irs->s == irs);  /* Fast check. */
+  return snap_sunk_store2(J, ira, irs);
+}
+
+/* Replay snapshot state to setup side trace. */
+void lj_snap_replay(jit_State *J, GCtrace *T)
+{
+  SnapShot *snap = &T->snap[J->exitno];
+  SnapEntry *map = &T->snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  BloomFilter seen = 0;
+  int pass23 = 0;
+  J->framedepth = 0;
+  /* Emit IR for slots inherited from parent snapshot. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = &T->ir[ref];
+    TRef tr;
+    /* The bloom filter avoids O(nent^2) overhead for de-duping slots. */
+    if (bloomtest(seen, ref) && (tr = snap_dedup(J, map, n, ref)) != 0)
+      goto setslot;
+    bloomset(seen, ref);
+    if (irref_isk(ref)) {
+      tr = snap_replay_const(J, ir);
+    } else if (!regsp_used(ir->prev)) {
+      pass23 = 1;
+      lua_assert(s != 0);
+      tr = s;
+    } else {
+      IRType t = irt_type(ir->t);
+      uint32_t mode = IRSLOAD_INHERIT|IRSLOAD_PARENT;
+      if (LJ_SOFTFP && (sn & SNAP_SOFTFPNUM)) t = IRT_NUM;
+      if (ir->o == IR_SLOAD) mode |= (ir->op2 & IRSLOAD_READONLY);
+      tr = emitir_raw(IRT(IR_SLOAD, t), s, mode);
+    }
+  setslot:
+    J->slot[s] = tr | (sn&(SNAP_CONT|SNAP_FRAME));  /* Same as TREF_* flags. */
+    J->framedepth += ((sn & (SNAP_CONT|SNAP_FRAME)) && s);
+    if ((sn & SNAP_FRAME))
+      J->baseslot = s+1;
+  }
+  if (pass23) {
+    IRIns *irlast = &T->ir[snap->ref];
+    pass23 = 0;
+    /* Emit dependent PVALs. */
+    for (n = 0; n < nent; n++) {
+      SnapEntry sn = map[n];
+      IRRef refp = snap_ref(sn);
+      IRIns *ir = &T->ir[refp];
+      if (regsp_reg(ir->r) == RID_SUNK) {
+	if (J->slot[snap_slot(sn)] != snap_slot(sn)) continue;
+	pass23 = 1;
+	lua_assert(ir->o == IR_TNEW || ir->o == IR_TDUP ||
+		   ir->o == IR_CNEW || ir->o == IR_CNEWI);
+	if (ir->op1 >= T->nk) snap_pref(J, T, map, nent, seen, ir->op1);
+	if (ir->op2 >= T->nk) snap_pref(J, T, map, nent, seen, ir->op2);
+	if (LJ_HASFFI && ir->o == IR_CNEWI) {
+	  if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP)
+	    snap_pref(J, T, map, nent, seen, (ir+1)->op2);
+	} else {
+	  IRIns *irs;
+	  for (irs = ir+1; irs < irlast; irs++)
+	    if (irs->r == RID_SINK && snap_sunk_store(J, ir, irs)) {
+	      if (snap_pref(J, T, map, nent, seen, irs->op2) == 0)
+		snap_pref(J, T, map, nent, seen, T->ir[irs->op2].op1);
+	      else if ((LJ_SOFTFP || (LJ_32 && LJ_HASFFI)) &&
+		       irs+1 < irlast && (irs+1)->o == IR_HIOP)
+		snap_pref(J, T, map, nent, seen, (irs+1)->op2);
+	    }
+	}
+      } else if (!irref_isk(refp) && !regsp_used(ir->prev)) {
+	lua_assert(ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT);
+	J->slot[snap_slot(sn)] = snap_pref(J, T, map, nent, seen, ir->op1);
+      }
+    }
+    /* Replay sunk instructions. */
+    for (n = 0; pass23 && n < nent; n++) {
+      SnapEntry sn = map[n];
+      IRRef refp = snap_ref(sn);
+      IRIns *ir = &T->ir[refp];
+      if (regsp_reg(ir->r) == RID_SUNK) {
+	TRef op1, op2;
+	if (J->slot[snap_slot(sn)] != snap_slot(sn)) {  /* De-dup allocs. */
+	  J->slot[snap_slot(sn)] = J->slot[J->slot[snap_slot(sn)]];
+	  continue;
+	}
+	op1 = ir->op1;
+	if (op1 >= T->nk) op1 = snap_pref(J, T, map, nent, seen, op1);
+	op2 = ir->op2;
+	if (op2 >= T->nk) op2 = snap_pref(J, T, map, nent, seen, op2);
+	if (LJ_HASFFI && ir->o == IR_CNEWI) {
+	  if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP) {
+	    lj_needsplit(J);  /* Emit joining HIOP. */
+	    op2 = emitir_raw(IRT(IR_HIOP, IRT_I64), op2,
+			     snap_pref(J, T, map, nent, seen, (ir+1)->op2));
+	  }
+	  J->slot[snap_slot(sn)] = emitir(ir->ot, op1, op2);
+	} else {
+	  IRIns *irs;
+	  TRef tr = emitir(ir->ot, op1, op2);
+	  J->slot[snap_slot(sn)] = tr;
+	  for (irs = ir+1; irs < irlast; irs++)
+	    if (irs->r == RID_SINK && snap_sunk_store(J, ir, irs)) {
+	      IRIns *irr = &T->ir[irs->op1];
+	      TRef val, key = irr->op2, tmp = tr;
+	      if (irr->o != IR_FREF) {
+		IRIns *irk = &T->ir[key];
+		if (irr->o == IR_HREFK)
+		  key = lj_ir_kslot(J, snap_replay_const(J, &T->ir[irk->op1]),
+				    irk->op2);
+		else
+		  key = snap_replay_const(J, irk);
+		if (irr->o == IR_HREFK || irr->o == IR_AREF) {
+		  IRIns *irf = &T->ir[irr->op1];
+		  tmp = emitir(irf->ot, tmp, irf->op2);
+		}
+	      }
+	      tmp = emitir(irr->ot, tmp, key);
+	      val = snap_pref(J, T, map, nent, seen, irs->op2);
+	      if (val == 0) {
+		IRIns *irc = &T->ir[irs->op2];
+		lua_assert(irc->o == IR_CONV && irc->op2 == IRCONV_NUM_INT);
+		val = snap_pref(J, T, map, nent, seen, irc->op1);
+		val = emitir(IRTN(IR_CONV), val, IRCONV_NUM_INT);
+	      } else if ((LJ_SOFTFP || (LJ_32 && LJ_HASFFI)) &&
+			 irs+1 < irlast && (irs+1)->o == IR_HIOP) {
+		IRType t = IRT_I64;
+		if (LJ_SOFTFP && irt_type((irs+1)->t) == IRT_SOFTFP)
+		  t = IRT_NUM;
+		lj_needsplit(J);
+		if (irref_isk(irs->op2) && irref_isk((irs+1)->op2)) {
+		  uint64_t k = (uint32_t)T->ir[irs->op2].i +
+			       ((uint64_t)T->ir[(irs+1)->op2].i << 32);
+		  val = lj_ir_k64(J, t == IRT_I64 ? IR_KINT64 : IR_KNUM,
+				  lj_ir_k64_find(J, k));
+		} else {
+		  val = emitir_raw(IRT(IR_HIOP, t), val,
+			  snap_pref(J, T, map, nent, seen, (irs+1)->op2));
+		}
+		tmp = emitir(IRT(irs->o, t), tmp, val);
+		continue;
+	      }
+	      tmp = emitir(irs->ot, tmp, val);
+	    } else if (LJ_HASFFI && irs->o == IR_XBAR && ir->o == IR_CNEW) {
+	      emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+	    }
+	}
+      }
+    }
+  }
+  J->base = J->slot + J->baseslot;
+  J->maxslot = snap->nslots - J->baseslot;
+  lj_snap_add(J);
+  if (pass23)  /* Need explicit GC step _after_ initial snapshot. */
+    emitir_raw(IRTG(IR_GCSTEP, IRT_NIL), 0, 0);
+}
+
+/* -- Snapshot restore ---------------------------------------------------- */
+
+static void snap_unsink(jit_State *J, GCtrace *T, ExitState *ex,
+			SnapNo snapno, BloomFilter rfilt,
+			IRIns *ir, TValue *o);
+
+/* Restore a value from the trace exit state. */
+static void snap_restoreval(jit_State *J, GCtrace *T, ExitState *ex,
+			    SnapNo snapno, BloomFilter rfilt,
+			    IRRef ref, TValue *o)
+{
+  IRIns *ir = &T->ir[ref];
+  IRType1 t = ir->t;
+  RegSP rs = ir->prev;
+  if (irref_isk(ref)) {  /* Restore constant slot. */
+    lj_ir_kvalue(J->L, o, ir);
+    return;
+  }
+  if (LJ_UNLIKELY(bloomtest(rfilt, ref)))
+    rs = snap_renameref(T, snapno, ref, rs);
+  if (ra_hasspill(regsp_spill(rs))) {  /* Restore from spill slot. */
+    int32_t *sps = &ex->spill[regsp_spill(rs)];
+    if (irt_isinteger(t)) {
+      setintV(o, *sps);
+#if !LJ_SOFTFP
+    } else if (irt_isnum(t)) {
+      o->u64 = *(uint64_t *)sps;
+#endif
+    } else if (LJ_64 && irt_islightud(t)) {
+      /* 64 bit lightuserdata which may escape already has the tag bits. */
+      o->u64 = *(uint64_t *)sps;
+    } else {
+      lua_assert(!irt_ispri(t));  /* PRI refs never have a spill slot. */
+      setgcrefi(o->gcr, *sps);
+      setitype(o, irt_toitype(t));
+    }
+  } else {  /* Restore from register. */
+    Reg r = regsp_reg(rs);
+    if (ra_noreg(r)) {
+      lua_assert(ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT);
+      snap_restoreval(J, T, ex, snapno, rfilt, ir->op1, o);
+      if (LJ_DUALNUM) setnumV(o, (lua_Number)intV(o));
+      return;
+    } else if (irt_isinteger(t)) {
+      setintV(o, (int32_t)ex->gpr[r-RID_MIN_GPR]);
+#if !LJ_SOFTFP
+    } else if (irt_isnum(t)) {
+      setnumV(o, ex->fpr[r-RID_MIN_FPR]);
+#endif
+    } else if (LJ_64 && irt_islightud(t)) {
+      /* 64 bit lightuserdata which may escape already has the tag bits. */
+      o->u64 = ex->gpr[r-RID_MIN_GPR];
+    } else {
+      if (!irt_ispri(t))
+	setgcrefi(o->gcr, ex->gpr[r-RID_MIN_GPR]);
+      setitype(o, irt_toitype(t));
+    }
+  }
+}
+
+#if LJ_HASFFI
+/* Restore raw data from the trace exit state. */
+static void snap_restoredata(GCtrace *T, ExitState *ex,
+			     SnapNo snapno, BloomFilter rfilt,
+			     IRRef ref, void *dst, CTSize sz)
+{
+  IRIns *ir = &T->ir[ref];
+  RegSP rs = ir->prev;
+  int32_t *src;
+  uint64_t tmp;
+  if (irref_isk(ref)) {
+    if (ir->o == IR_KNUM || ir->o == IR_KINT64) {
+      src = mref(ir->ptr, int32_t);
+    } else if (sz == 8) {
+      tmp = (uint64_t)(uint32_t)ir->i;
+      src = (int32_t *)&tmp;
+    } else {
+      src = &ir->i;
+    }
+  } else {
+    if (LJ_UNLIKELY(bloomtest(rfilt, ref)))
+      rs = snap_renameref(T, snapno, ref, rs);
+    if (ra_hasspill(regsp_spill(rs))) {
+      src = &ex->spill[regsp_spill(rs)];
+      if (sz == 8 && !irt_is64(ir->t)) {
+	tmp = (uint64_t)(uint32_t)*src;
+	src = (int32_t *)&tmp;
+      }
+    } else {
+      Reg r = regsp_reg(rs);
+      if (ra_noreg(r)) {
+	/* Note: this assumes CNEWI is never used for SOFTFP split numbers. */
+	lua_assert(sz == 8 && ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT);
+	snap_restoredata(T, ex, snapno, rfilt, ir->op1, dst, 4);
+	*(lua_Number *)dst = (lua_Number)*(int32_t *)dst;
+	return;
+      }
+      src = (int32_t *)&ex->gpr[r-RID_MIN_GPR];
+#if !LJ_SOFTFP
+      if (r >= RID_MAX_GPR) {
+	src = (int32_t *)&ex->fpr[r-RID_MIN_FPR];
+#if LJ_TARGET_PPC
+	if (sz == 4) {  /* PPC FPRs are always doubles. */
+	  *(float *)dst = (float)*(double *)src;
+	  return;
+	}
+#else
+	if (LJ_BE && sz == 4) src++;
+#endif
+      }
+#endif
+    }
+  }
+  lua_assert(sz == 1 || sz == 2 || sz == 4 || sz == 8);
+  if (sz == 4) *(int32_t *)dst = *src;
+  else if (sz == 8) *(int64_t *)dst = *(int64_t *)src;
+  else if (sz == 1) *(int8_t *)dst = (int8_t)*src;
+  else *(int16_t *)dst = (int16_t)*src;
+}
+#endif
+
+/* Unsink allocation from the trace exit state. Unsink sunk stores. */
+static void snap_unsink(jit_State *J, GCtrace *T, ExitState *ex,
+			SnapNo snapno, BloomFilter rfilt,
+			IRIns *ir, TValue *o)
+{
+  lua_assert(ir->o == IR_TNEW || ir->o == IR_TDUP ||
+	     ir->o == IR_CNEW || ir->o == IR_CNEWI);
+#if LJ_HASFFI
+  if (ir->o == IR_CNEW || ir->o == IR_CNEWI) {
+    CTState *cts = ctype_cts(J->L);
+    CTypeID id = (CTypeID)T->ir[ir->op1].i;
+    CTSize sz = lj_ctype_size(cts, id);
+    GCcdata *cd = lj_cdata_new(cts, id, sz);
+    setcdataV(J->L, o, cd);
+    if (ir->o == IR_CNEWI) {
+      uint8_t *p = (uint8_t *)cdataptr(cd);
+      lua_assert(sz == 4 || sz == 8);
+      if (LJ_32 && sz == 8 && ir+1 < T->ir + T->nins && (ir+1)->o == IR_HIOP) {
+	snap_restoredata(T, ex, snapno, rfilt, (ir+1)->op2, LJ_LE?p+4:p, 4);
+	if (LJ_BE) p += 4;
+	sz = 4;
+      }
+      snap_restoredata(T, ex, snapno, rfilt, ir->op2, p, sz);
+    } else {
+      IRIns *irs, *irlast = &T->ir[T->snap[snapno].ref];
+      for (irs = ir+1; irs < irlast; irs++)
+	if (irs->r == RID_SINK && snap_sunk_store(J, ir, irs)) {
+	  IRIns *iro = &T->ir[T->ir[irs->op1].op2];
+	  uint8_t *p = (uint8_t *)cd;
+	  CTSize szs;
+	  lua_assert(irs->o == IR_XSTORE && T->ir[irs->op1].o == IR_ADD);
+	  lua_assert(iro->o == IR_KINT || iro->o == IR_KINT64);
+	  if (irt_is64(irs->t)) szs = 8;
+	  else if (irt_isi8(irs->t) || irt_isu8(irs->t)) szs = 1;
+	  else if (irt_isi16(irs->t) || irt_isu16(irs->t)) szs = 2;
+	  else szs = 4;
+	  if (LJ_64 && iro->o == IR_KINT64)
+	    p += (int64_t)ir_k64(iro)->u64;
+	  else
+	    p += iro->i;
+	  lua_assert(p >= (uint8_t *)cdataptr(cd) &&
+		     p + szs <= (uint8_t *)cdataptr(cd) + sz);
+	  if (LJ_32 && irs+1 < T->ir + T->nins && (irs+1)->o == IR_HIOP) {
+	    lua_assert(szs == 4);
+	    snap_restoredata(T, ex, snapno, rfilt, (irs+1)->op2, LJ_LE?p+4:p,4);
+	    if (LJ_BE) p += 4;
+	  }
+	  snap_restoredata(T, ex, snapno, rfilt, irs->op2, p, szs);
+	}
+    }
+  } else
+#endif
+  {
+    IRIns *irs, *irlast;
+    GCtab *t = ir->o == IR_TNEW ? lj_tab_new(J->L, ir->op1, ir->op2) :
+				  lj_tab_dup(J->L, ir_ktab(&T->ir[ir->op1]));
+    settabV(J->L, o, t);
+    irlast = &T->ir[T->snap[snapno].ref];
+    for (irs = ir+1; irs < irlast; irs++)
+      if (irs->r == RID_SINK && snap_sunk_store(J, ir, irs)) {
+	IRIns *irk = &T->ir[irs->op1];
+	TValue tmp, *val;
+	lua_assert(irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+		   irs->o == IR_FSTORE);
+	if (irk->o == IR_FREF) {
+	  lua_assert(irk->op2 == IRFL_TAB_META);
+	  snap_restoreval(J, T, ex, snapno, rfilt, irs->op2, &tmp);
+	  /* NOBARRIER: The table is new (marked white). */
+	  setgcref(t->metatable, obj2gco(tabV(&tmp)));
+	} else {
+	  irk = &T->ir[irk->op2];
+	  if (irk->o == IR_KSLOT) irk = &T->ir[irk->op1];
+	  lj_ir_kvalue(J->L, &tmp, irk);
+	  val = lj_tab_set(J->L, t, &tmp);
+	  /* NOBARRIER: The table is new (marked white). */
+	  snap_restoreval(J, T, ex, snapno, rfilt, irs->op2, val);
+	  if (LJ_SOFTFP && irs+1 < T->ir + T->nins && (irs+1)->o == IR_HIOP) {
+	    snap_restoreval(J, T, ex, snapno, rfilt, (irs+1)->op2, &tmp);
+	    val->u32.hi = tmp.u32.lo;
+	  }
+	}
+      }
+  }
+}
+
+/* Restore interpreter state from exit state with the help of a snapshot. */
+const BCIns *lj_snap_restore(jit_State *J, void *exptr)
+{
+  ExitState *ex = (ExitState *)exptr;
+  SnapNo snapno = J->exitno;  /* For now, snapno == exitno. */
+  GCtrace *T = traceref(J, J->parent);
+  SnapShot *snap = &T->snap[snapno];
+  MSize n, nent = snap->nent;
+  SnapEntry *map = &T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &T->snapmap[snap_nextofs(T, snap)-1];
+  int32_t ftsz0;
+  TValue *frame;
+  BloomFilter rfilt = snap_renamefilter(T, snapno);
+  const BCIns *pc = snap_pc(map[nent]);
+  lua_State *L = J->L;
+
+  /* Set interpreter PC to the next PC to get correct error messages. */
+  setcframe_pc(cframe_raw(L->cframe), pc+1);
+
+  /* Make sure the stack is big enough for the slots from the snapshot. */
+  if (LJ_UNLIKELY(L->base + snap->topslot >= tvref(L->maxstack))) {
+    L->top = curr_topL(L);
+    lj_state_growstack(L, snap->topslot - curr_proto(L)->framesize);
+  }
+
+  /* Fill stack slots with data from the registers and spill slots. */
+  frame = L->base-1;
+  ftsz0 = frame_ftsz(frame);  /* Preserve link to previous frame in slot #0. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    if (!(sn & SNAP_NORESTORE)) {
+      TValue *o = &frame[snap_slot(sn)];
+      IRRef ref = snap_ref(sn);
+      IRIns *ir = &T->ir[ref];
+      if (ir->r == RID_SUNK) {
+	MSize j;
+	for (j = 0; j < n; j++)
+	  if (snap_ref(map[j]) == ref) {  /* De-duplicate sunk allocations. */
+	    copyTV(L, o, &frame[snap_slot(map[j])]);
+	    goto dupslot;
+	  }
+	snap_unsink(J, T, ex, snapno, rfilt, ir, o);
+      dupslot:
+	continue;
+      }
+      snap_restoreval(J, T, ex, snapno, rfilt, ref, o);
+      if (LJ_SOFTFP && (sn & SNAP_SOFTFPNUM) && tvisint(o)) {
+	TValue tmp;
+	snap_restoreval(J, T, ex, snapno, rfilt, ref+1, &tmp);
+	o->u32.hi = tmp.u32.lo;
+      } else if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	/* Overwrite tag with frame link. */
+	o->fr.tp.ftsz = snap_slot(sn) != 0 ? (int32_t)*flinks-- : ftsz0;
+	L->base = o+1;
+      }
+    }
+  }
+  lua_assert(map + nent == flinks);
+
+  /* Compute current stack top. */
+  switch (bc_op(*pc)) {
+  default:
+    if (bc_op(*pc) < BC_FUNCF) {
+      L->top = curr_topL(L);
+      break;
+    }
+    /* fallthrough */
+  case BC_CALLM: case BC_CALLMT: case BC_RETM: case BC_TSETM:
+    L->top = frame + snap->nslots;
+    break;
+  }
+  return pc;
+}
+
+#undef IR
+#undef emitir_raw
+#undef emitir
+
+#endif
diff --git a/lib/luajit/src/lj_snap.h b/lib/luajit/src/lj_snap.h
new file mode 100644
index 00000000..1b2d74da
--- /dev/null
+++ b/lib/luajit/src/lj_snap.h
@@ -0,0 +1,34 @@
+/*
+** Snapshot handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_SNAP_H
+#define _LJ_SNAP_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+LJ_FUNC void lj_snap_add(jit_State *J);
+LJ_FUNC void lj_snap_purge(jit_State *J);
+LJ_FUNC void lj_snap_shrink(jit_State *J);
+LJ_FUNC IRIns *lj_snap_regspmap(GCtrace *T, SnapNo snapno, IRIns *ir);
+LJ_FUNC void lj_snap_replay(jit_State *J, GCtrace *T);
+LJ_FUNC const BCIns *lj_snap_restore(jit_State *J, void *exptr);
+LJ_FUNC void lj_snap_grow_buf_(jit_State *J, MSize need);
+LJ_FUNC void lj_snap_grow_map_(jit_State *J, MSize need);
+
+static LJ_AINLINE void lj_snap_grow_buf(jit_State *J, MSize need)
+{
+  if (LJ_UNLIKELY(need > J->sizesnap)) lj_snap_grow_buf_(J, need);
+}
+
+static LJ_AINLINE void lj_snap_grow_map(jit_State *J, MSize need)
+{
+  if (LJ_UNLIKELY(need > J->sizesnapmap)) lj_snap_grow_map_(J, need);
+}
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_state.c b/lib/luajit/src/lj_state.c
new file mode 100644
index 00000000..f972fdce
--- /dev/null
+++ b/lib/luajit/src/lj_state.c
@@ -0,0 +1,287 @@
+/*
+** State and stack handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_state_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_lex.h"
+#include "lj_alloc.h"
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Stack sizes. */
+#define LJ_STACK_MIN	LUA_MINSTACK	/* Min. stack size. */
+#define LJ_STACK_MAX	LUAI_MAXSTACK	/* Max. stack size. */
+#define LJ_STACK_START	(2*LJ_STACK_MIN)	/* Starting stack size. */
+#define LJ_STACK_MAXEX	(LJ_STACK_MAX + 1 + LJ_STACK_EXTRA)
+
+/* Explanation of LJ_STACK_EXTRA:
+**
+** Calls to metamethods store their arguments beyond the current top
+** without checking for the stack limit. This avoids stack resizes which
+** would invalidate passed TValue pointers. The stack check is performed
+** later by the function header. This can safely resize the stack or raise
+** an error. Thus we need some extra slots beyond the current stack limit.
+**
+** Most metamethods need 4 slots above top (cont, mobj, arg1, arg2) plus
+** one extra slot if mobj is not a function. Only lj_meta_tset needs 5
+** slots above top, but then mobj is always a function. So we can get by
+** with 5 extra slots.
+*/
+
+/* Resize stack slots and adjust pointers in state. */
+static void resizestack(lua_State *L, MSize n)
+{
+  TValue *st, *oldst = tvref(L->stack);
+  ptrdiff_t delta;
+  MSize oldsize = L->stacksize;
+  MSize realsize = n + 1 + LJ_STACK_EXTRA;
+  GCobj *up;
+  lua_assert((MSize)(tvref(L->maxstack)-oldst)==L->stacksize-LJ_STACK_EXTRA-1);
+  st = (TValue *)lj_mem_realloc(L, tvref(L->stack),
+				(MSize)(L->stacksize*sizeof(TValue)),
+				(MSize)(realsize*sizeof(TValue)));
+  setmref(L->stack, st);
+  delta = (char *)st - (char *)oldst;
+  setmref(L->maxstack, st + n);
+  while (oldsize < realsize)  /* Clear new slots. */
+    setnilV(st + oldsize++);
+  L->stacksize = realsize;
+  L->base = (TValue *)((char *)L->base + delta);
+  L->top = (TValue *)((char *)L->top + delta);
+  for (up = gcref(L->openupval); up != NULL; up = gcnext(up))
+    setmref(gco2uv(up)->v, (TValue *)((char *)uvval(gco2uv(up)) + delta));
+  if (obj2gco(L) == gcref(G(L)->jit_L))
+    setmref(G(L)->jit_base, mref(G(L)->jit_base, char) + delta);
+}
+
+/* Relimit stack after error, in case the limit was overdrawn. */
+void lj_state_relimitstack(lua_State *L)
+{
+  if (L->stacksize > LJ_STACK_MAXEX && L->top-tvref(L->stack) < LJ_STACK_MAX-1)
+    resizestack(L, LJ_STACK_MAX);
+}
+
+/* Try to shrink the stack (called from GC). */
+void lj_state_shrinkstack(lua_State *L, MSize used)
+{
+  if (L->stacksize > LJ_STACK_MAXEX)
+    return;  /* Avoid stack shrinking while handling stack overflow. */
+  if (4*used < L->stacksize &&
+      2*(LJ_STACK_START+LJ_STACK_EXTRA) < L->stacksize &&
+      obj2gco(L) != gcref(G(L)->jit_L))  /* Don't shrink stack of live trace. */
+    resizestack(L, L->stacksize >> 1);
+}
+
+/* Try to grow stack. */
+void LJ_FASTCALL lj_state_growstack(lua_State *L, MSize need)
+{
+  MSize n;
+  if (L->stacksize > LJ_STACK_MAXEX)  /* Overflow while handling overflow? */
+    lj_err_throw(L, LUA_ERRERR);
+  n = L->stacksize + need;
+  if (n > LJ_STACK_MAX) {
+    n += 2*LUA_MINSTACK;
+  } else if (n < 2*L->stacksize) {
+    n = 2*L->stacksize;
+    if (n >= LJ_STACK_MAX)
+      n = LJ_STACK_MAX;
+  }
+  resizestack(L, n);
+  if (L->stacksize > LJ_STACK_MAXEX)
+    lj_err_msg(L, LJ_ERR_STKOV);
+}
+
+void LJ_FASTCALL lj_state_growstack1(lua_State *L)
+{
+  lj_state_growstack(L, 1);
+}
+
+/* Allocate basic stack for new state. */
+static void stack_init(lua_State *L1, lua_State *L)
+{
+  TValue *stend, *st = lj_mem_newvec(L, LJ_STACK_START+LJ_STACK_EXTRA, TValue);
+  setmref(L1->stack, st);
+  L1->stacksize = LJ_STACK_START + LJ_STACK_EXTRA;
+  stend = st + L1->stacksize;
+  setmref(L1->maxstack, stend - LJ_STACK_EXTRA - 1);
+  L1->base = L1->top = st+1;
+  setthreadV(L1, st, L1);  /* Needed for curr_funcisL() on empty stack. */
+  while (st < stend)  /* Clear new slots. */
+    setnilV(st++);
+}
+
+/* -- State handling ------------------------------------------------------ */
+
+/* Open parts that may cause memory-allocation errors. */
+static TValue *cpluaopen(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  global_State *g = G(L);
+  UNUSED(dummy);
+  UNUSED(ud);
+  stack_init(L, L);
+  /* NOBARRIER: State initialization, all objects are white. */
+  setgcref(L->env, obj2gco(lj_tab_new(L, 0, LJ_MIN_GLOBAL)));
+  settabV(L, registry(L), lj_tab_new(L, 0, LJ_MIN_REGISTRY));
+  lj_str_resize(L, LJ_MIN_STRTAB-1);
+  lj_meta_init(L);
+  lj_lex_init(L);
+  fixstring(lj_err_str(L, LJ_ERR_ERRMEM));  /* Preallocate memory error msg. */
+  g->gc.threshold = 4*g->gc.total;
+  lj_trace_initstate(g);
+  return NULL;
+}
+
+static void close_state(lua_State *L)
+{
+  global_State *g = G(L);
+  lj_func_closeuv(L, tvref(L->stack));
+  lj_gc_freeall(g);
+  lua_assert(gcref(g->gc.root) == obj2gco(L));
+  lua_assert(g->strnum == 0);
+  lj_trace_freestate(g);
+#if LJ_HASFFI
+  lj_ctype_freestate(g);
+#endif
+  lj_mem_freevec(g, g->strhash, g->strmask+1, GCRef);
+  lj_str_freebuf(g, &g->tmpbuf);
+  lj_mem_freevec(g, tvref(L->stack), L->stacksize, TValue);
+  lua_assert(g->gc.total == sizeof(GG_State));
+#ifndef LUAJIT_USE_SYSMALLOC
+  if (g->allocf == lj_alloc_f)
+    lj_alloc_destroy(g->allocd);
+  else
+#endif
+    g->allocf(g->allocd, G2GG(g), sizeof(GG_State), 0);
+}
+
+#if LJ_64
+lua_State *lj_state_newstate(lua_Alloc f, void *ud)
+#else
+LUA_API lua_State *lua_newstate(lua_Alloc f, void *ud)
+#endif
+{
+  GG_State *GG = (GG_State *)f(ud, NULL, 0, sizeof(GG_State));
+  lua_State *L = &GG->L;
+  global_State *g = &GG->g;
+  if (GG == NULL || !checkptr32(GG)) return NULL;
+  memset(GG, 0, sizeof(GG_State));
+  L->gct = ~LJ_TTHREAD;
+  L->marked = LJ_GC_WHITE0 | LJ_GC_FIXED | LJ_GC_SFIXED;  /* Prevent free. */
+  L->dummy_ffid = FF_C;
+  setmref(L->glref, g);
+  g->gc.currentwhite = LJ_GC_WHITE0 | LJ_GC_FIXED;
+  g->strempty.marked = LJ_GC_WHITE0;
+  g->strempty.gct = ~LJ_TSTR;
+  g->allocf = f;
+  g->allocd = ud;
+  setgcref(g->mainthref, obj2gco(L));
+  setgcref(g->uvhead.prev, obj2gco(&g->uvhead));
+  setgcref(g->uvhead.next, obj2gco(&g->uvhead));
+  g->strmask = ~(MSize)0;
+  setnilV(registry(L));
+  setnilV(&g->nilnode.val);
+  setnilV(&g->nilnode.key);
+  setmref(g->nilnode.freetop, &g->nilnode);
+  lj_str_initbuf(&g->tmpbuf);
+  g->gc.state = GCSpause;
+  setgcref(g->gc.root, obj2gco(L));
+  setmref(g->gc.sweep, &g->gc.root);
+  g->gc.total = sizeof(GG_State);
+  g->gc.pause = LUAI_GCPAUSE;
+  g->gc.stepmul = LUAI_GCMUL;
+  lj_dispatch_init((GG_State *)L);
+  L->status = LUA_ERRERR+1;  /* Avoid touching the stack upon memory error. */
+  if (lj_vm_cpcall(L, NULL, NULL, cpluaopen) != 0) {
+    /* Memory allocation error: free partial state. */
+    close_state(L);
+    return NULL;
+  }
+  L->status = 0;
+  return L;
+}
+
+static TValue *cpfinalize(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  UNUSED(dummy);
+  UNUSED(ud);
+  lj_gc_finalize_cdata(L);
+  lj_gc_finalize_udata(L);
+  /* Frame pop omitted. */
+  return NULL;
+}
+
+LUA_API void lua_close(lua_State *L)
+{
+  global_State *g = G(L);
+  int i;
+  L = mainthread(g);  /* Only the main thread can be closed. */
+  lj_func_closeuv(L, tvref(L->stack));
+  lj_gc_separateudata(g, 1);  /* Separate udata which have GC metamethods. */
+#if LJ_HASJIT
+  G2J(g)->flags &= ~JIT_F_ON;
+  G2J(g)->state = LJ_TRACE_IDLE;
+  lj_dispatch_update(g);
+#endif
+  for (i = 0;;) {
+    hook_enter(g);
+    L->status = 0;
+    L->cframe = NULL;
+    L->base = L->top = tvref(L->stack) + 1;
+    if (lj_vm_cpcall(L, NULL, NULL, cpfinalize) == 0) {
+      if (++i >= 10) break;
+      lj_gc_separateudata(g, 1);  /* Separate udata again. */
+      if (gcref(g->gc.mmudata) == NULL)  /* Until nothing is left to do. */
+	break;
+    }
+  }
+  close_state(L);
+}
+
+lua_State *lj_state_new(lua_State *L)
+{
+  lua_State *L1 = lj_mem_newobj(L, lua_State);
+  L1->gct = ~LJ_TTHREAD;
+  L1->dummy_ffid = FF_C;
+  L1->status = 0;
+  L1->stacksize = 0;
+  setmref(L1->stack, NULL);
+  L1->cframe = NULL;
+  /* NOBARRIER: The lua_State is new (marked white). */
+  setgcrefnull(L1->openupval);
+  setmrefr(L1->glref, L->glref);
+  setgcrefr(L1->env, L->env);
+  stack_init(L1, L);  /* init stack */
+  lua_assert(iswhite(obj2gco(L1)));
+  return L1;
+}
+
+void LJ_FASTCALL lj_state_free(global_State *g, lua_State *L)
+{
+  lua_assert(L != mainthread(g));
+  lj_func_closeuv(L, tvref(L->stack));
+  lua_assert(gcref(L->openupval) == NULL);
+  lj_mem_freevec(g, tvref(L->stack), L->stacksize, TValue);
+  lj_mem_freet(g, L);
+}
+
diff --git a/lib/luajit/src/lj_state.h b/lib/luajit/src/lj_state.h
new file mode 100644
index 00000000..74249d9b
--- /dev/null
+++ b/lib/luajit/src/lj_state.h
@@ -0,0 +1,35 @@
+/*
+** State and stack handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STATE_H
+#define _LJ_STATE_H
+
+#include "lj_obj.h"
+
+#define incr_top(L) \
+  (++L->top >= tvref(L->maxstack) && (lj_state_growstack1(L), 0))
+
+#define savestack(L, p)		((char *)(p) - mref(L->stack, char))
+#define restorestack(L, n)	((TValue *)(mref(L->stack, char) + (n)))
+
+LJ_FUNC void lj_state_relimitstack(lua_State *L);
+LJ_FUNC void lj_state_shrinkstack(lua_State *L, MSize used);
+LJ_FUNCA void LJ_FASTCALL lj_state_growstack(lua_State *L, MSize need);
+LJ_FUNC void LJ_FASTCALL lj_state_growstack1(lua_State *L);
+
+static LJ_AINLINE void lj_state_checkstack(lua_State *L, MSize need)
+{
+  if ((mref(L->maxstack, char) - (char *)L->top) <=
+      (ptrdiff_t)need*(ptrdiff_t)sizeof(TValue))
+    lj_state_growstack(L, need);
+}
+
+LJ_FUNC lua_State *lj_state_new(lua_State *L);
+LJ_FUNC void LJ_FASTCALL lj_state_free(global_State *g, lua_State *L);
+#if LJ_64
+LJ_FUNC lua_State *lj_state_newstate(lua_Alloc f, void *ud);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_str.c b/lib/luajit/src/lj_str.c
new file mode 100644
index 00000000..aead8b53
--- /dev/null
+++ b/lib/luajit/src/lj_str.c
@@ -0,0 +1,339 @@
+/*
+** String handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+
+#define lj_str_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_state.h"
+#include "lj_char.h"
+
+/* -- String interning ---------------------------------------------------- */
+
+/* Ordered compare of strings. Assumes string data is 4-byte aligned. */
+int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b)
+{
+  MSize i, n = a->len > b->len ? b->len : a->len;
+  for (i = 0; i < n; i += 4) {
+    /* Note: innocuous access up to end of string + 3. */
+    uint32_t va = *(const uint32_t *)(strdata(a)+i);
+    uint32_t vb = *(const uint32_t *)(strdata(b)+i);
+    if (va != vb) {
+#if LJ_LE
+      va = lj_bswap(va); vb = lj_bswap(vb);
+#endif
+      i -= n;
+      if ((int32_t)i >= -3) {
+	va >>= 32+(i<<3); vb >>= 32+(i<<3);
+	if (va == vb) break;
+      }
+      return va < vb ? -1 : 1;
+    }
+  }
+  return (int32_t)(a->len - b->len);
+}
+
+/* Fast string data comparison. Caveat: unaligned access to 1st string! */
+static LJ_AINLINE int str_fastcmp(const char *a, const char *b, MSize len)
+{
+  MSize i = 0;
+  lua_assert(len > 0);
+  lua_assert((((uintptr_t)a+len-1) & (LJ_PAGESIZE-1)) <= LJ_PAGESIZE-4);
+  do {  /* Note: innocuous access up to end of string + 3. */
+    uint32_t v = lj_getu32(a+i) ^ *(const uint32_t *)(b+i);
+    if (v) {
+      i -= len;
+#if LJ_LE
+      return (int32_t)i >= -3 ? (v << (32+(i<<3))) : 1;
+#else
+      return (int32_t)i >= -3 ? (v >> (32+(i<<3))) : 1;
+#endif
+    }
+    i += 4;
+  } while (i < len);
+  return 0;
+}
+
+/* Resize the string hash table (grow and shrink). */
+void lj_str_resize(lua_State *L, MSize newmask)
+{
+  global_State *g = G(L);
+  GCRef *newhash;
+  MSize i;
+  if (g->gc.state == GCSsweepstring || newmask >= LJ_MAX_STRTAB-1)
+    return;  /* No resizing during GC traversal or if already too big. */
+  newhash = lj_mem_newvec(L, newmask+1, GCRef);
+  memset(newhash, 0, (newmask+1)*sizeof(GCRef));
+  for (i = g->strmask; i != ~(MSize)0; i--) {  /* Rehash old table. */
+    GCobj *p = gcref(g->strhash[i]);
+    while (p) {  /* Follow each hash chain and reinsert all strings. */
+      MSize h = gco2str(p)->hash & newmask;
+      GCobj *next = gcnext(p);
+      /* NOBARRIER: The string table is a GC root. */
+      setgcrefr(p->gch.nextgc, newhash[h]);
+      setgcref(newhash[h], p);
+      p = next;
+    }
+  }
+  lj_mem_freevec(g, g->strhash, g->strmask+1, GCRef);
+  g->strmask = newmask;
+  g->strhash = newhash;
+}
+
+/* Intern a string and return string object. */
+GCstr *lj_str_new(lua_State *L, const char *str, size_t lenx)
+{
+  global_State *g;
+  GCstr *s;
+  GCobj *o;
+  MSize len = (MSize)lenx;
+  MSize a, b, h = len;
+  if (lenx >= LJ_MAX_STR)
+    lj_err_msg(L, LJ_ERR_STROV);
+  g = G(L);
+  /* Compute string hash. Constants taken from lookup3 hash by Bob Jenkins. */
+  if (len >= 4) {  /* Caveat: unaligned access! */
+    a = lj_getu32(str);
+    h ^= lj_getu32(str+len-4);
+    b = lj_getu32(str+(len>>1)-2);
+    h ^= b; h -= lj_rol(b, 14);
+    b += lj_getu32(str+(len>>2)-1);
+  } else if (len > 0) {
+    a = *(const uint8_t *)str;
+    h ^= *(const uint8_t *)(str+len-1);
+    b = *(const uint8_t *)(str+(len>>1));
+    h ^= b; h -= lj_rol(b, 14);
+  } else {
+    return &g->strempty;
+  }
+  a ^= h; a -= lj_rol(h, 11);
+  b ^= a; b -= lj_rol(a, 25);
+  h ^= b; h -= lj_rol(b, 16);
+  /* Check if the string has already been interned. */
+  o = gcref(g->strhash[h & g->strmask]);
+  if (LJ_LIKELY((((uintptr_t)str+len-1) & (LJ_PAGESIZE-1)) <= LJ_PAGESIZE-4)) {
+    while (o != NULL) {
+      GCstr *sx = gco2str(o);
+      if (sx->len == len && str_fastcmp(str, strdata(sx), len) == 0) {
+	/* Resurrect if dead. Can only happen with fixstring() (keywords). */
+	if (isdead(g, o)) flipwhite(o);
+	return sx;  /* Return existing string. */
+      }
+      o = gcnext(o);
+    }
+  } else {  /* Slow path: end of string is too close to a page boundary. */
+    while (o != NULL) {
+      GCstr *sx = gco2str(o);
+      if (sx->len == len && memcmp(str, strdata(sx), len) == 0) {
+	/* Resurrect if dead. Can only happen with fixstring() (keywords). */
+	if (isdead(g, o)) flipwhite(o);
+	return sx;  /* Return existing string. */
+      }
+      o = gcnext(o);
+    }
+  }
+  /* Nope, create a new string. */
+  s = lj_mem_newt(L, sizeof(GCstr)+len+1, GCstr);
+  newwhite(g, s);
+  s->gct = ~LJ_TSTR;
+  s->len = len;
+  s->hash = h;
+  s->reserved = 0;
+  memcpy(strdatawr(s), str, len);
+  strdatawr(s)[len] = '\0';  /* Zero-terminate string. */
+  /* Add it to string hash table. */
+  h &= g->strmask;
+  s->nextgc = g->strhash[h];
+  /* NOBARRIER: The string table is a GC root. */
+  setgcref(g->strhash[h], obj2gco(s));
+  if (g->strnum++ > g->strmask)  /* Allow a 100% load factor. */
+    lj_str_resize(L, (g->strmask<<1)+1);  /* Grow string table. */
+  return s;  /* Return newly interned string. */
+}
+
+void LJ_FASTCALL lj_str_free(global_State *g, GCstr *s)
+{
+  g->strnum--;
+  lj_mem_free(g, s, sizestring(s));
+}
+
+/* -- Type conversions ---------------------------------------------------- */
+
+/* Print number to buffer. Canonicalizes non-finite values. */
+size_t LJ_FASTCALL lj_str_bufnum(char *s, cTValue *o)
+{
+  if (LJ_LIKELY((o->u32.hi << 1) < 0xffe00000)) {  /* Finite? */
+    lua_Number n = o->n;
+#if __BIONIC__
+    if (tvismzero(o)) { s[0] = '-'; s[1] = '0'; return 2; }
+#endif
+    return (size_t)lua_number2str(s, n);
+  } else if (((o->u32.hi & 0x000fffff) | o->u32.lo) != 0) {
+    s[0] = 'n'; s[1] = 'a'; s[2] = 'n'; return 3;
+  } else if ((o->u32.hi & 0x80000000) == 0) {
+    s[0] = 'i'; s[1] = 'n'; s[2] = 'f'; return 3;
+  } else {
+    s[0] = '-'; s[1] = 'i'; s[2] = 'n'; s[3] = 'f'; return 4;
+  }
+}
+
+/* Print integer to buffer. Returns pointer to start. */
+char * LJ_FASTCALL lj_str_bufint(char *p, int32_t k)
+{
+  uint32_t u = (uint32_t)(k < 0 ? -k : k);
+  p += 1+10;
+  do { *--p = (char)('0' + u % 10); } while (u /= 10);
+  if (k < 0) *--p = '-';
+  return p;
+}
+
+/* Convert number to string. */
+GCstr * LJ_FASTCALL lj_str_fromnum(lua_State *L, const lua_Number *np)
+{
+  char buf[LJ_STR_NUMBUF];
+  size_t len = lj_str_bufnum(buf, (TValue *)np);
+  return lj_str_new(L, buf, len);
+}
+
+/* Convert integer to string. */
+GCstr * LJ_FASTCALL lj_str_fromint(lua_State *L, int32_t k)
+{
+  char s[1+10];
+  char *p = lj_str_bufint(s, k);
+  return lj_str_new(L, p, (size_t)(s+sizeof(s)-p));
+}
+
+GCstr * LJ_FASTCALL lj_str_fromnumber(lua_State *L, cTValue *o)
+{
+  return tvisint(o) ? lj_str_fromint(L, intV(o)) : lj_str_fromnum(L, &o->n);
+}
+
+/* -- String formatting --------------------------------------------------- */
+
+static void addstr(lua_State *L, SBuf *sb, const char *str, MSize len)
+{
+  char *p;
+  MSize i;
+  if (sb->n + len > sb->sz) {
+    MSize sz = sb->sz * 2;
+    while (sb->n + len > sz) sz = sz * 2;
+    lj_str_resizebuf(L, sb, sz);
+  }
+  p = sb->buf + sb->n;
+  sb->n += len;
+  for (i = 0; i < len; i++) p[i] = str[i];
+}
+
+static void addchar(lua_State *L, SBuf *sb, int c)
+{
+  if (sb->n + 1 > sb->sz) {
+    MSize sz = sb->sz * 2;
+    lj_str_resizebuf(L, sb, sz);
+  }
+  sb->buf[sb->n++] = (char)c;
+}
+
+/* Push formatted message as a string object to Lua stack. va_list variant. */
+const char *lj_str_pushvf(lua_State *L, const char *fmt, va_list argp)
+{
+  SBuf *sb = &G(L)->tmpbuf;
+  lj_str_needbuf(L, sb, (MSize)strlen(fmt));
+  lj_str_resetbuf(sb);
+  for (;;) {
+    const char *e = strchr(fmt, '%');
+    if (e == NULL) break;
+    addstr(L, sb, fmt, (MSize)(e-fmt));
+    /* This function only handles %s, %c, %d, %f and %p formats. */
+    switch (e[1]) {
+    case 's': {
+      const char *s = va_arg(argp, char *);
+      if (s == NULL) s = "(null)";
+      addstr(L, sb, s, (MSize)strlen(s));
+      break;
+      }
+    case 'c':
+      addchar(L, sb, va_arg(argp, int));
+      break;
+    case 'd': {
+      char buf[LJ_STR_INTBUF];
+      char *p = lj_str_bufint(buf, va_arg(argp, int32_t));
+      addstr(L, sb, p, (MSize)(buf+LJ_STR_INTBUF-p));
+      break;
+      }
+    case 'f': {
+      char buf[LJ_STR_NUMBUF];
+      TValue tv;
+      MSize len;
+      tv.n = (lua_Number)(va_arg(argp, LUAI_UACNUMBER));
+      len = (MSize)lj_str_bufnum(buf, &tv);
+      addstr(L, sb, buf, len);
+      break;
+      }
+    case 'p': {
+#define FMTP_CHARS	(2*sizeof(ptrdiff_t))
+      char buf[2+FMTP_CHARS];
+      ptrdiff_t p = (ptrdiff_t)(va_arg(argp, void *));
+      ptrdiff_t i, lasti = 2+FMTP_CHARS;
+      if (p == 0) {
+	addstr(L, sb, "NULL", 4);
+	break;
+      }
+#if LJ_64
+      /* Shorten output for 64 bit pointers. */
+      lasti = 2+2*4+((p >> 32) ? 2+2*(lj_fls((uint32_t)(p >> 32))>>3) : 0);
+#endif
+      buf[0] = '0';
+      buf[1] = 'x';
+      for (i = lasti-1; i >= 2; i--, p >>= 4)
+	buf[i] = "0123456789abcdef"[(p & 15)];
+      addstr(L, sb, buf, (MSize)lasti);
+      break;
+      }
+    case '%':
+      addchar(L, sb, '%');
+      break;
+    default:
+      addchar(L, sb, '%');
+      addchar(L, sb, e[1]);
+      break;
+    }
+    fmt = e+2;
+  }
+  addstr(L, sb, fmt, (MSize)strlen(fmt));
+  setstrV(L, L->top, lj_str_new(L, sb->buf, sb->n));
+  incr_top(L);
+  return strVdata(L->top - 1);
+}
+
+/* Push formatted message as a string object to Lua stack. Vararg variant. */
+const char *lj_str_pushf(lua_State *L, const char *fmt, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, fmt);
+  msg = lj_str_pushvf(L, fmt, argp);
+  va_end(argp);
+  return msg;
+}
+
+/* -- Buffer handling ----------------------------------------------------- */
+
+char *lj_str_needbuf(lua_State *L, SBuf *sb, MSize sz)
+{
+  if (sz > sb->sz) {
+    if (sz < LJ_MIN_SBUF) sz = LJ_MIN_SBUF;
+    lj_str_resizebuf(L, sb, sz);
+  }
+  return sb->buf;
+}
+
diff --git a/lib/luajit/src/lj_str.h b/lib/luajit/src/lj_str.h
new file mode 100644
index 00000000..1602c980
--- /dev/null
+++ b/lib/luajit/src/lj_str.h
@@ -0,0 +1,50 @@
+/*
+** String handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STR_H
+#define _LJ_STR_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+
+/* String interning. */
+LJ_FUNC int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b);
+LJ_FUNC void lj_str_resize(lua_State *L, MSize newmask);
+LJ_FUNCA GCstr *lj_str_new(lua_State *L, const char *str, size_t len);
+LJ_FUNC void LJ_FASTCALL lj_str_free(global_State *g, GCstr *s);
+
+#define lj_str_newz(L, s)	(lj_str_new(L, s, strlen(s)))
+#define lj_str_newlit(L, s)	(lj_str_new(L, "" s, sizeof(s)-1))
+
+/* Type conversions. */
+LJ_FUNC size_t LJ_FASTCALL lj_str_bufnum(char *s, cTValue *o);
+LJ_FUNC char * LJ_FASTCALL lj_str_bufint(char *p, int32_t k);
+LJ_FUNCA GCstr * LJ_FASTCALL lj_str_fromnum(lua_State *L, const lua_Number *np);
+LJ_FUNC GCstr * LJ_FASTCALL lj_str_fromint(lua_State *L, int32_t k);
+LJ_FUNCA GCstr * LJ_FASTCALL lj_str_fromnumber(lua_State *L, cTValue *o);
+
+#define LJ_STR_INTBUF		(1+10)
+#define LJ_STR_NUMBUF		LUAI_MAXNUMBER2STR
+
+/* String formatting. */
+LJ_FUNC const char *lj_str_pushvf(lua_State *L, const char *fmt, va_list argp);
+LJ_FUNC const char *lj_str_pushf(lua_State *L, const char *fmt, ...)
+#if defined(__GNUC__)
+  __attribute__ ((format (printf, 2, 3)))
+#endif
+  ;
+
+/* Resizable string buffers. Struct definition in lj_obj.h. */
+LJ_FUNC char *lj_str_needbuf(lua_State *L, SBuf *sb, MSize sz);
+
+#define lj_str_initbuf(sb)	((sb)->buf = NULL, (sb)->sz = 0)
+#define lj_str_resetbuf(sb)	((sb)->n = 0)
+#define lj_str_resizebuf(L, sb, size) \
+  ((sb)->buf = (char *)lj_mem_realloc(L, (sb)->buf, (sb)->sz, (size)), \
+   (sb)->sz = (size))
+#define lj_str_freebuf(g, sb)	lj_mem_free(g, (void *)(sb)->buf, (sb)->sz)
+
+#endif
diff --git a/lib/luajit/src/lj_strscan.c b/lib/luajit/src/lj_strscan.c
new file mode 100644
index 00000000..a21c414a
--- /dev/null
+++ b/lib/luajit/src/lj_strscan.c
@@ -0,0 +1,497 @@
+/*
+** String scanning.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <math.h>
+
+#define lj_strscan_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+
+/* -- Scanning numbers ---------------------------------------------------- */
+
+/*
+** Rationale for the builtin string to number conversion library:
+**
+** It removes a dependency on libc's strtod(), which is a true portability
+** nightmare. Mainly due to the plethora of supported OS and toolchain
+** combinations. Sadly, the various implementations
+** a) are often buggy, incomplete (no hex floats) and/or imprecise,
+** b) sometimes crash or hang on certain inputs,
+** c) return non-standard NaNs that need to be filtered out, and
+** d) fail if the locale-specific decimal separator is not a dot,
+**    which can only be fixed with atrocious workarounds.
+**
+** Also, most of the strtod() implementations are hopelessly bloated,
+** which is not just an I-cache hog, but a problem for static linkage
+** on embedded systems, too.
+**
+** OTOH the builtin conversion function is very compact. Even though it
+** does a lot more, like parsing long longs, octal or imaginary numbers
+** and returning the result in different formats:
+** a) It needs less than 3 KB (!) of machine code (on x64 with -Os),
+** b) it doesn't perform any dynamic allocation and,
+** c) it needs only around 600 bytes of stack space.
+**
+** The builtin function is faster than strtod() for typical inputs, e.g.
+** "123", "1.5" or "1e6". Arguably, it's slower for very large exponents,
+** which are not very common (this could be fixed, if needed).
+**
+** And most importantly, the builtin function is equally precise on all
+** platforms. It correctly converts and rounds any input to a double.
+** If this is not the case, please send a bug report -- but PLEASE verify
+** that the implementation you're comparing to is not the culprit!
+**
+** The implementation quickly pre-scans the entire string first and
+** handles simple integers on-the-fly. Otherwise, it dispatches to the
+** base-specific parser. Hex and octal is straightforward.
+**
+** Decimal to binary conversion uses a fixed-length circular buffer in
+** base 100. Some simple cases are handled directly. For other cases, the
+** number in the buffer is up-scaled or down-scaled until the integer part
+** is in the proper range. Then the integer part is rounded and converted
+** to a double which is finally rescaled to the result. Denormals need
+** special treatment to prevent incorrect 'double rounding'.
+*/
+
+/* Definitions for circular decimal digit buffer (base 100 = 2 digits/byte). */
+#define STRSCAN_DIG	1024
+#define STRSCAN_MAXDIG	800		/* 772 + extra are sufficient. */
+#define STRSCAN_DDIG	(STRSCAN_DIG/2)
+#define STRSCAN_DMASK	(STRSCAN_DDIG-1)
+
+/* Helpers for circular buffer. */
+#define DNEXT(a)	(((a)+1) & STRSCAN_DMASK)
+#define DPREV(a)	(((a)-1) & STRSCAN_DMASK)
+#define DLEN(lo, hi)	((int32_t)(((lo)-(hi)) & STRSCAN_DMASK))
+
+#define casecmp(c, k)	(((c) | 0x20) == k)
+
+/* Final conversion to double. */
+static void strscan_double(uint64_t x, TValue *o, int32_t ex2, int32_t neg)
+{
+  double n;
+
+  /* Avoid double rounding for denormals. */
+  if (LJ_UNLIKELY(ex2 <= -1075 && x != 0)) {
+    /* NYI: all of this generates way too much code on 32 bit CPUs. */
+#if defined(__GNUC__) && LJ_64
+    int32_t b = (int32_t)(__builtin_clzll(x)^63);
+#else
+    int32_t b = (x>>32) ? 32+(int32_t)lj_fls((uint32_t)(x>>32)) :
+			  (int32_t)lj_fls((uint32_t)x);
+#endif
+    if ((int32_t)b + ex2 <= -1023 && (int32_t)b + ex2 >= -1075) {
+      uint64_t rb = (uint64_t)1 << (-1075-ex2);
+      if ((x & rb) && ((x & (rb+rb+rb-1)))) x += rb+rb;
+      x = (x & ~(rb+rb-1));
+    }
+  }
+
+  /* Convert to double using a signed int64_t conversion, then rescale. */
+  lua_assert((int64_t)x >= 0);
+  n = (double)(int64_t)x;
+  if (neg) n = -n;
+  if (ex2) n = ldexp(n, ex2);
+  o->n = n;
+}
+
+/* Parse hexadecimal number. */
+static StrScanFmt strscan_hex(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, uint32_t opt,
+			      int32_t ex2, int32_t neg, uint32_t dig)
+{
+  uint64_t x = 0;
+  uint32_t i;
+
+  /* Scan hex digits. */
+  for (i = dig > 16 ? 16 : dig ; i; i--, p++) {
+    uint32_t d = (*p != '.' ? *p : *++p); if (d > '9') d += 9;
+    x = (x << 4) + (d & 15);
+  }
+
+  /* Summarize rounding-effect of excess digits. */
+  for (i = 16; i < dig; i++, p++)
+    x |= ((*p != '.' ? *p : *++p) != '0'), ex2 += 4;
+
+  /* Format-specific handling. */
+  switch (fmt) {
+  case STRSCAN_INT:
+    if (!(opt & STRSCAN_OPT_TONUM) && x < 0x80000000u+neg) {
+      o->i = neg ? -(int32_t)x : (int32_t)x;
+      return STRSCAN_INT;  /* Fast path for 32 bit integers. */
+    }
+    if (!(opt & STRSCAN_OPT_C)) { fmt = STRSCAN_NUM; break; }
+    /* fallthrough */
+  case STRSCAN_U32:
+    if (dig > 8) return STRSCAN_ERROR;
+    o->i = neg ? -(int32_t)x : (int32_t)x;
+    return STRSCAN_U32;
+  case STRSCAN_I64:
+  case STRSCAN_U64:
+    if (dig > 16) return STRSCAN_ERROR;
+    o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+    return fmt;
+  default:
+    break;
+  }
+
+  /* Reduce range then convert to double. */
+  if ((x & U64x(c0000000,0000000))) { x = (x >> 2) | (x & 3); ex2 += 2; }
+  strscan_double(x, o, ex2, neg);
+  return fmt;
+}
+
+/* Parse octal number. */
+static StrScanFmt strscan_oct(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, int32_t neg, uint32_t dig)
+{
+  uint64_t x = 0;
+
+  /* Scan octal digits. */
+  if (dig > 22 || (dig == 22 && *p > '1')) return STRSCAN_ERROR;
+  while (dig-- > 0) {
+    if (!(*p >= '0' && *p <= '7')) return STRSCAN_ERROR;
+    x = (x << 3) + (*p++ & 7);
+  }
+
+  /* Format-specific handling. */
+  switch (fmt) {
+  case STRSCAN_INT:
+    if (x >= 0x80000000u+neg) fmt = STRSCAN_U32;
+    /* fallthrough */
+  case STRSCAN_U32:
+    if ((x >> 32)) return STRSCAN_ERROR;
+    o->i = neg ? -(int32_t)x : (int32_t)x;
+    break;
+  default:
+  case STRSCAN_I64:
+  case STRSCAN_U64:
+    o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+    break;
+  }
+  return fmt;
+}
+
+/* Parse decimal number. */
+static StrScanFmt strscan_dec(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, uint32_t opt,
+			      int32_t ex10, int32_t neg, uint32_t dig)
+{
+  uint8_t xi[STRSCAN_DDIG], *xip = xi;
+
+  if (dig) {
+    uint32_t i = dig;
+    if (i > STRSCAN_MAXDIG) {
+      ex10 += (int32_t)(i - STRSCAN_MAXDIG);
+      i = STRSCAN_MAXDIG;
+    }
+    /* Scan unaligned leading digit. */
+    if (((ex10^i) & 1))
+      *xip++ = ((*p != '.' ? *p : *++p) & 15), i--, p++;
+    /* Scan aligned double-digits. */
+    for ( ; i > 1; i -= 2) {
+      uint32_t d = 10 * ((*p != '.' ? *p : *++p) & 15); p++;
+      *xip++ = d + ((*p != '.' ? *p : *++p) & 15); p++;
+    }
+    /* Scan and realign trailing digit. */
+    if (i) *xip++ = 10 * ((*p != '.' ? *p : *++p) & 15), ex10--, p++;
+
+    /* Summarize rounding-effect of excess digits. */
+    if (dig > STRSCAN_MAXDIG) {
+      do {
+	if ((*p != '.' ? *p : *++p) != '0') { xip[-1] |= 1; break; }
+	p++;
+      } while (--dig > STRSCAN_MAXDIG);
+      dig = STRSCAN_MAXDIG;
+    } else {  /* Simplify exponent. */
+      while (ex10 > 0 && dig <= 18) *xip++ = 0, ex10 -= 2, dig += 2;
+    }
+  } else {  /* Only got zeros. */
+    ex10 = 0;
+    xi[0] = 0;
+  }
+
+  /* Fast path for numbers in integer format (but handles e.g. 1e6, too). */
+  if (dig <= 20 && ex10 == 0) {
+    uint8_t *xis;
+    uint64_t x = xi[0];
+    double n;
+    for (xis = xi+1; xis < xip; xis++) x = x * 100 + *xis;
+    if (!(dig == 20 && (xi[0] > 18 || (int64_t)x >= 0))) {  /* No overflow? */
+      /* Format-specific handling. */
+      switch (fmt) {
+      case STRSCAN_INT:
+	if (!(opt & STRSCAN_OPT_TONUM) && x < 0x80000000u+neg) {
+	  o->i = neg ? -(int32_t)x : (int32_t)x;
+	  return STRSCAN_INT;  /* Fast path for 32 bit integers. */
+	}
+	if (!(opt & STRSCAN_OPT_C)) { fmt = STRSCAN_NUM; goto plainnumber; }
+	/* fallthrough */
+      case STRSCAN_U32:
+	if ((x >> 32) != 0) return STRSCAN_ERROR;
+	o->i = neg ? -(int32_t)x : (int32_t)x;
+	return STRSCAN_U32;
+      case STRSCAN_I64:
+      case STRSCAN_U64:
+	o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+	return fmt;
+      default:
+      plainnumber:  /* Fast path for plain numbers < 2^63. */
+	if ((int64_t)x < 0) break;
+	n = (double)(int64_t)x;
+	if (neg) n = -n;
+	o->n = n;
+	return fmt;
+      }
+    }
+  }
+
+  /* Slow non-integer path. */
+  if (fmt == STRSCAN_INT) {
+    if ((opt & STRSCAN_OPT_C)) return STRSCAN_ERROR;
+    fmt = STRSCAN_NUM;
+  } else if (fmt > STRSCAN_INT) {
+    return STRSCAN_ERROR;
+  }
+  {
+    uint32_t hi = 0, lo = (uint32_t)(xip-xi);
+    int32_t ex2 = 0, idig = (int32_t)lo + (ex10 >> 1);
+
+    lua_assert(lo > 0 && (ex10 & 1) == 0);
+
+    /* Handle simple overflow/underflow. */
+    if (idig > 310/2) { if (neg) setminfV(o); else setpinfV(o); return fmt; }
+    else if (idig < -326/2) { o->n = neg ? -0.0 : 0.0; return fmt; }
+
+    /* Scale up until we have at least 17 or 18 integer part digits. */
+    while (idig < 9 && idig < DLEN(lo, hi)) {
+      uint32_t i, cy = 0;
+      ex2 -= 6;
+      for (i = DPREV(lo); ; i = DPREV(i)) {
+	uint32_t d = (xi[i] << 6) + cy;
+	cy = (((d >> 2) * 5243) >> 17); d = d - cy * 100;  /* Div/mod 100. */
+	xi[i] = (uint8_t)d;
+	if (i == hi) break;
+	if (d == 0 && i == DPREV(lo)) lo = i;
+      }
+      if (cy) {
+	hi = DPREV(hi);
+	if (xi[DPREV(lo)] == 0) lo = DPREV(lo);
+	else if (hi == lo) { lo = DPREV(lo); xi[DPREV(lo)] |= xi[lo]; }
+	xi[hi] = (uint8_t)cy; idig++;
+      }
+    }
+
+    /* Scale down until no more than 17 or 18 integer part digits remain. */
+    while (idig > 9) {
+      uint32_t i, cy = 0;
+      ex2 += 6;
+      for (i = hi; i != lo; i = DNEXT(i)) {
+	cy += xi[i];
+	xi[i] = (cy >> 6);
+	cy = 100 * (cy & 0x3f);
+	if (xi[i] == 0 && i == hi) hi = DNEXT(hi), idig--;
+      }
+      while (cy) {
+	if (hi == lo) { xi[DPREV(lo)] |= 1; break; }
+	xi[lo] = (cy >> 6); lo = DNEXT(lo);
+	cy = 100 * (cy & 0x3f);
+      }
+    }
+
+    /* Collect integer part digits and convert to rescaled double. */
+    {
+      uint64_t x = xi[hi];
+      uint32_t i;
+      for (i = DNEXT(hi); --idig > 0 && i != lo; i = DNEXT(i))
+	x = x * 100 + xi[i];
+      if (i == lo) {
+	while (--idig >= 0) x = x * 100;
+      } else {  /* Gather round bit from remaining digits. */
+	x <<= 1; ex2--;
+	do {
+	  if (xi[i]) { x |= 1; break; }
+	  i = DNEXT(i);
+	} while (i != lo);
+      }
+      strscan_double(x, o, ex2, neg);
+    }
+  }
+  return fmt;
+}
+
+/* Scan string containing a number. Returns format. Returns value in o. */
+StrScanFmt lj_strscan_scan(const uint8_t *p, TValue *o, uint32_t opt)
+{
+  int32_t neg = 0;
+
+  /* Remove leading space, parse sign and non-numbers. */
+  if (LJ_UNLIKELY(!lj_char_isdigit(*p))) {
+    while (lj_char_isspace(*p)) p++;
+    if (*p == '+' || *p == '-') neg = (*p++ == '-');
+    if (LJ_UNLIKELY(*p >= 'A')) {  /* Parse "inf", "infinity" or "nan". */
+      TValue tmp;
+      setnanV(&tmp);
+      if (casecmp(p[0],'i') && casecmp(p[1],'n') && casecmp(p[2],'f')) {
+	if (neg) setminfV(&tmp); else setpinfV(&tmp);
+	p += 3;
+	if (casecmp(p[0],'i') && casecmp(p[1],'n') && casecmp(p[2],'i') &&
+	    casecmp(p[3],'t') && casecmp(p[4],'y')) p += 5;
+      } else if (casecmp(p[0],'n') && casecmp(p[1],'a') && casecmp(p[2],'n')) {
+	p += 3;
+      }
+      while (lj_char_isspace(*p)) p++;
+      if (*p) return STRSCAN_ERROR;
+      o->u64 = tmp.u64;
+      return STRSCAN_NUM;
+    }
+  }
+
+  /* Parse regular number. */
+  {
+    StrScanFmt fmt = STRSCAN_INT;
+    int cmask = LJ_CHAR_DIGIT;
+    int base = (opt & STRSCAN_OPT_C) && *p == '0' ? 0 : 10;
+    const uint8_t *sp, *dp = NULL;
+    uint32_t dig = 0, hasdig = 0, x = 0;
+    int32_t ex = 0;
+
+    /* Determine base and skip leading zeros. */
+    if (LJ_UNLIKELY(*p <= '0')) {
+      if (*p == '0' && casecmp(p[1], 'x'))
+	base = 16, cmask = LJ_CHAR_XDIGIT, p += 2;
+      for ( ; ; p++) {
+	if (*p == '0') {
+	  hasdig = 1;
+	} else if (*p == '.') {
+	  if (dp) return STRSCAN_ERROR;
+	  dp = p;
+	} else {
+	  break;
+	}
+      }
+    }
+
+    /* Preliminary digit and decimal point scan. */
+    for (sp = p; ; p++) {
+      if (LJ_LIKELY(lj_char_isa(*p, cmask))) {
+	x = x * 10 + (*p & 15);  /* For fast path below. */
+	dig++;
+      } else if (*p == '.') {
+	if (dp) return STRSCAN_ERROR;
+	dp = p;
+      } else {
+	break;
+      }
+    }
+    if (!(hasdig | dig)) return STRSCAN_ERROR;
+
+    /* Handle decimal point. */
+    if (dp) {
+      fmt = STRSCAN_NUM;
+      if (dig) {
+	ex = (int32_t)(dp-(p-1)); dp = p-1;
+	while (ex < 0 && *dp-- == '0') ex++, dig--;  /* Skip trailing zeros. */
+	if (base == 16) ex *= 4;
+      }
+    }
+
+    /* Parse exponent. */
+    if (casecmp(*p, (uint32_t)(base == 16 ? 'p' : 'e'))) {
+      uint32_t xx;
+      int negx = 0;
+      fmt = STRSCAN_NUM; p++;
+      if (*p == '+' || *p == '-') negx = (*p++ == '-');
+      if (!lj_char_isdigit(*p)) return STRSCAN_ERROR;
+      xx = (*p++ & 15);
+      while (lj_char_isdigit(*p)) {
+	if (xx < 65536) xx = xx * 10 + (*p & 15);
+	p++;
+      }
+      ex += negx ? -(int32_t)xx : (int32_t)xx;
+    }
+
+    /* Parse suffix. */
+    if (*p) {
+      /* I (IMAG), U (U32), LL (I64), ULL/LLU (U64), L (long), UL/LU (ulong). */
+      /* NYI: f (float). Not needed until cp_number() handles non-integers. */
+      if (casecmp(*p, 'i')) {
+	if (!(opt & STRSCAN_OPT_IMAG)) return STRSCAN_ERROR;
+	p++; fmt = STRSCAN_IMAG;
+      } else if (fmt == STRSCAN_INT) {
+	if (casecmp(*p, 'u')) p++, fmt = STRSCAN_U32;
+	if (casecmp(*p, 'l')) {
+	  p++;
+	  if (casecmp(*p, 'l')) p++, fmt += STRSCAN_I64 - STRSCAN_INT;
+	  else if (!(opt & STRSCAN_OPT_C)) return STRSCAN_ERROR;
+	  else if (sizeof(long) == 8) fmt += STRSCAN_I64 - STRSCAN_INT;
+	}
+	if (casecmp(*p, 'u') && (fmt == STRSCAN_INT || fmt == STRSCAN_I64))
+	  p++, fmt += STRSCAN_U32 - STRSCAN_INT;
+	if ((fmt == STRSCAN_U32 && !(opt & STRSCAN_OPT_C)) ||
+	    (fmt >= STRSCAN_I64 && !(opt & STRSCAN_OPT_LL)))
+	  return STRSCAN_ERROR;
+      }
+      while (lj_char_isspace(*p)) p++;
+      if (*p) return STRSCAN_ERROR;
+    }
+
+    /* Fast path for decimal 32 bit integers. */
+    if (fmt == STRSCAN_INT && base == 10 &&
+	(dig < 10 || (dig == 10 && *sp <= '2' && x < 0x80000000u+neg))) {
+      int32_t y = neg ? -(int32_t)x : (int32_t)x;
+      if ((opt & STRSCAN_OPT_TONUM)) {
+	o->n = (double)y;
+	return STRSCAN_NUM;
+      } else {
+	o->i = y;
+	return STRSCAN_INT;
+      }
+    }
+
+    /* Dispatch to base-specific parser. */
+    if (base == 0 && !(fmt == STRSCAN_NUM || fmt == STRSCAN_IMAG))
+      return strscan_oct(sp, o, fmt, neg, dig);
+    if (base == 16)
+      fmt = strscan_hex(sp, o, fmt, opt, ex, neg, dig);
+    else
+      fmt = strscan_dec(sp, o, fmt, opt, ex, neg, dig);
+
+    /* Try to convert number to integer, if requested. */
+    if (fmt == STRSCAN_NUM && (opt & STRSCAN_OPT_TOINT)) {
+      double n = o->n;
+      int32_t i = lj_num2int(n);
+      if (n == (lua_Number)i) { o->i = i; return STRSCAN_INT; }
+    }
+    return fmt;
+  }
+}
+
+int LJ_FASTCALL lj_strscan_num(GCstr *str, TValue *o)
+{
+  StrScanFmt fmt = lj_strscan_scan((const uint8_t *)strdata(str), o,
+				   STRSCAN_OPT_TONUM);
+  lua_assert(fmt == STRSCAN_ERROR || fmt == STRSCAN_NUM);
+  return (fmt != STRSCAN_ERROR);
+}
+
+#if LJ_DUALNUM
+int LJ_FASTCALL lj_strscan_number(GCstr *str, TValue *o)
+{
+  StrScanFmt fmt = lj_strscan_scan((const uint8_t *)strdata(str), o,
+				   STRSCAN_OPT_TOINT);
+  lua_assert(fmt == STRSCAN_ERROR || fmt == STRSCAN_NUM || fmt == STRSCAN_INT);
+  if (fmt == STRSCAN_INT) setitype(o, LJ_TISNUM);
+  return (fmt != STRSCAN_ERROR);
+}
+#endif
+
+#undef DNEXT
+#undef DPREV
+#undef DLEN
+
diff --git a/lib/luajit/src/lj_strscan.h b/lib/luajit/src/lj_strscan.h
new file mode 100644
index 00000000..15abd6af
--- /dev/null
+++ b/lib/luajit/src/lj_strscan.h
@@ -0,0 +1,39 @@
+/*
+** String scanning.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STRSCAN_H
+#define _LJ_STRSCAN_H
+
+#include "lj_obj.h"
+
+/* Options for accepted/returned formats. */
+#define STRSCAN_OPT_TOINT	0x01  /* Convert to int32_t, if possible. */
+#define STRSCAN_OPT_TONUM	0x02  /* Always convert to double. */
+#define STRSCAN_OPT_IMAG	0x04
+#define STRSCAN_OPT_LL		0x08
+#define STRSCAN_OPT_C		0x10
+
+/* Returned format. */
+typedef enum {
+  STRSCAN_ERROR,
+  STRSCAN_NUM, STRSCAN_IMAG,
+  STRSCAN_INT, STRSCAN_U32, STRSCAN_I64, STRSCAN_U64,
+} StrScanFmt;
+
+LJ_FUNC StrScanFmt lj_strscan_scan(const uint8_t *p, TValue *o, uint32_t opt);
+LJ_FUNC int LJ_FASTCALL lj_strscan_num(GCstr *str, TValue *o);
+#if LJ_DUALNUM
+LJ_FUNC int LJ_FASTCALL lj_strscan_number(GCstr *str, TValue *o);
+#else
+#define lj_strscan_number(s, o)		lj_strscan_num((s), (o))
+#endif
+
+/* Check for number or convert string to number/int in-place (!). */
+static LJ_AINLINE int lj_strscan_numberobj(TValue *o)
+{
+  return tvisnumber(o) || (tvisstr(o) && lj_strscan_number(strV(o), o));
+}
+
+#endif
diff --git a/lib/luajit/src/lj_tab.c b/lib/luajit/src/lj_tab.c
new file mode 100644
index 00000000..fc7d0f1c
--- /dev/null
+++ b/lib/luajit/src/lj_tab.c
@@ -0,0 +1,631 @@
+/*
+** Table handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_tab_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+
+/* -- Object hashing ------------------------------------------------------ */
+
+/* Hash values are masked with the table hash mask and used as an index. */
+static LJ_AINLINE Node *hashmask(const GCtab *t, uint32_t hash)
+{
+  Node *n = noderef(t->node);
+  return &n[hash & t->hmask];
+}
+
+/* String hashes are precomputed when they are interned. */
+#define hashstr(t, s)		hashmask(t, (s)->hash)
+
+#define hashlohi(t, lo, hi)	hashmask((t), hashrot((lo), (hi)))
+#define hashnum(t, o)		hashlohi((t), (o)->u32.lo, ((o)->u32.hi << 1))
+#define hashptr(t, p)		hashlohi((t), u32ptr(p), u32ptr(p) + HASH_BIAS)
+#define hashgcref(t, r)		hashlohi((t), gcrefu(r), gcrefu(r) + HASH_BIAS)
+
+/* Hash an arbitrary key and return its anchor position in the hash table. */
+static Node *hashkey(const GCtab *t, cTValue *key)
+{
+  lua_assert(!tvisint(key));
+  if (tvisstr(key))
+    return hashstr(t, strV(key));
+  else if (tvisnum(key))
+    return hashnum(t, key);
+  else if (tvisbool(key))
+    return hashmask(t, boolV(key));
+  else
+    return hashgcref(t, key->gcr);
+  /* Only hash 32 bits of lightuserdata on a 64 bit CPU. Good enough? */
+}
+
+/* -- Table creation and destruction -------------------------------------- */
+
+/* Create new hash part for table. */
+static LJ_AINLINE void newhpart(lua_State *L, GCtab *t, uint32_t hbits)
+{
+  uint32_t hsize;
+  Node *node;
+  lua_assert(hbits != 0);
+  if (hbits > LJ_MAX_HBITS)
+    lj_err_msg(L, LJ_ERR_TABOV);
+  hsize = 1u << hbits;
+  node = lj_mem_newvec(L, hsize, Node);
+  setmref(node->freetop, &node[hsize]);
+  setmref(t->node, node);
+  t->hmask = hsize-1;
+}
+
+/*
+** Q: Why all of these copies of t->hmask, t->node etc. to local variables?
+** A: Because alias analysis for C is _really_ tough.
+**    Even state-of-the-art C compilers won't produce good code without this.
+*/
+
+/* Clear hash part of table. */
+static LJ_AINLINE void clearhpart(GCtab *t)
+{
+  uint32_t i, hmask = t->hmask;
+  Node *node = noderef(t->node);
+  lua_assert(t->hmask != 0);
+  for (i = 0; i <= hmask; i++) {
+    Node *n = &node[i];
+    setmref(n->next, NULL);
+    setnilV(&n->key);
+    setnilV(&n->val);
+  }
+}
+
+/* Clear array part of table. */
+static LJ_AINLINE void clearapart(GCtab *t)
+{
+  uint32_t i, asize = t->asize;
+  TValue *array = tvref(t->array);
+  for (i = 0; i < asize; i++)
+    setnilV(&array[i]);
+}
+
+/* Create a new table. Note: the slots are not initialized (yet). */
+static GCtab *newtab(lua_State *L, uint32_t asize, uint32_t hbits)
+{
+  GCtab *t;
+  /* First try to colocate the array part. */
+  if (LJ_MAX_COLOSIZE != 0 && asize > 0 && asize <= LJ_MAX_COLOSIZE) {
+    lua_assert((sizeof(GCtab) & 7) == 0);
+    t = (GCtab *)lj_mem_newgco(L, sizetabcolo(asize));
+    t->gct = ~LJ_TTAB;
+    t->nomm = (uint8_t)~0;
+    t->colo = (int8_t)asize;
+    setmref(t->array, (TValue *)((char *)t + sizeof(GCtab)));
+    setgcrefnull(t->metatable);
+    t->asize = asize;
+    t->hmask = 0;
+    setmref(t->node, &G(L)->nilnode);
+  } else {  /* Otherwise separately allocate the array part. */
+    t = lj_mem_newobj(L, GCtab);
+    t->gct = ~LJ_TTAB;
+    t->nomm = (uint8_t)~0;
+    t->colo = 0;
+    setmref(t->array, NULL);
+    setgcrefnull(t->metatable);
+    t->asize = 0;  /* In case the array allocation fails. */
+    t->hmask = 0;
+    setmref(t->node, &G(L)->nilnode);
+    if (asize > 0) {
+      if (asize > LJ_MAX_ASIZE)
+	lj_err_msg(L, LJ_ERR_TABOV);
+      setmref(t->array, lj_mem_newvec(L, asize, TValue));
+      t->asize = asize;
+    }
+  }
+  if (hbits)
+    newhpart(L, t, hbits);
+  return t;
+}
+
+/* Create a new table.
+**
+** IMPORTANT NOTE: The API differs from lua_createtable()!
+**
+** The array size is non-inclusive. E.g. asize=128 creates array slots
+** for 0..127, but not for 128. If you need slots 1..128, pass asize=129
+** (slot 0 is wasted in this case).
+**
+** The hash size is given in hash bits. hbits=0 means no hash part.
+** hbits=1 creates 2 hash slots, hbits=2 creates 4 hash slots and so on.
+*/
+GCtab *lj_tab_new(lua_State *L, uint32_t asize, uint32_t hbits)
+{
+  GCtab *t = newtab(L, asize, hbits);
+  clearapart(t);
+  if (t->hmask > 0) clearhpart(t);
+  return t;
+}
+
+#if LJ_HASJIT
+GCtab * LJ_FASTCALL lj_tab_new1(lua_State *L, uint32_t ahsize)
+{
+  GCtab *t = newtab(L, ahsize & 0xffffff, ahsize >> 24);
+  clearapart(t);
+  if (t->hmask > 0) clearhpart(t);
+  return t;
+}
+#endif
+
+/* Duplicate a table. */
+GCtab * LJ_FASTCALL lj_tab_dup(lua_State *L, const GCtab *kt)
+{
+  GCtab *t;
+  uint32_t asize, hmask;
+  t = newtab(L, kt->asize, kt->hmask > 0 ? lj_fls(kt->hmask)+1 : 0);
+  lua_assert(kt->asize == t->asize && kt->hmask == t->hmask);
+  t->nomm = 0;  /* Keys with metamethod names may be present. */
+  asize = kt->asize;
+  if (asize > 0) {
+    TValue *array = tvref(t->array);
+    TValue *karray = tvref(kt->array);
+    if (asize < 64) {  /* An inlined loop beats memcpy for < 512 bytes. */
+      uint32_t i;
+      for (i = 0; i < asize; i++)
+	copyTV(L, &array[i], &karray[i]);
+    } else {
+      memcpy(array, karray, asize*sizeof(TValue));
+    }
+  }
+  hmask = kt->hmask;
+  if (hmask > 0) {
+    uint32_t i;
+    Node *node = noderef(t->node);
+    Node *knode = noderef(kt->node);
+    ptrdiff_t d = (char *)node - (char *)knode;
+    setmref(node->freetop, (Node *)((char *)noderef(knode->freetop) + d));
+    for (i = 0; i <= hmask; i++) {
+      Node *kn = &knode[i];
+      Node *n = &node[i];
+      Node *next = nextnode(kn);
+      /* Don't use copyTV here, since it asserts on a copy of a dead key. */
+      n->val = kn->val; n->key = kn->key;
+      setmref(n->next, next == NULL? next : (Node *)((char *)next + d));
+    }
+  }
+  return t;
+}
+
+/* Free a table. */
+void LJ_FASTCALL lj_tab_free(global_State *g, GCtab *t)
+{
+  if (t->hmask > 0)
+    lj_mem_freevec(g, noderef(t->node), t->hmask+1, Node);
+  if (t->asize > 0 && LJ_MAX_COLOSIZE != 0 && t->colo <= 0)
+    lj_mem_freevec(g, tvref(t->array), t->asize, TValue);
+  if (LJ_MAX_COLOSIZE != 0 && t->colo)
+    lj_mem_free(g, t, sizetabcolo((uint32_t)t->colo & 0x7f));
+  else
+    lj_mem_freet(g, t);
+}
+
+/* -- Table resizing ------------------------------------------------------ */
+
+/* Resize a table to fit the new array/hash part sizes. */
+static void resizetab(lua_State *L, GCtab *t, uint32_t asize, uint32_t hbits)
+{
+  Node *oldnode = noderef(t->node);
+  uint32_t oldasize = t->asize;
+  uint32_t oldhmask = t->hmask;
+  if (asize > oldasize) {  /* Array part grows? */
+    TValue *array;
+    uint32_t i;
+    if (asize > LJ_MAX_ASIZE)
+      lj_err_msg(L, LJ_ERR_TABOV);
+    if (LJ_MAX_COLOSIZE != 0 && t->colo > 0) {
+      /* A colocated array must be separated and copied. */
+      TValue *oarray = tvref(t->array);
+      array = lj_mem_newvec(L, asize, TValue);
+      t->colo = (int8_t)(t->colo | 0x80);  /* Mark as separated (colo < 0). */
+      for (i = 0; i < oldasize; i++)
+	copyTV(L, &array[i], &oarray[i]);
+    } else {
+      array = (TValue *)lj_mem_realloc(L, tvref(t->array),
+			  oldasize*sizeof(TValue), asize*sizeof(TValue));
+    }
+    setmref(t->array, array);
+    t->asize = asize;
+    for (i = oldasize; i < asize; i++)  /* Clear newly allocated slots. */
+      setnilV(&array[i]);
+  }
+  /* Create new (empty) hash part. */
+  if (hbits) {
+    newhpart(L, t, hbits);
+    clearhpart(t);
+  } else {
+    global_State *g = G(L);
+    setmref(t->node, &g->nilnode);
+    t->hmask = 0;
+  }
+  if (asize < oldasize) {  /* Array part shrinks? */
+    TValue *array = tvref(t->array);
+    uint32_t i;
+    t->asize = asize;  /* Note: This 'shrinks' even colocated arrays. */
+    for (i = asize; i < oldasize; i++)  /* Reinsert old array values. */
+      if (!tvisnil(&array[i]))
+	copyTV(L, lj_tab_setinth(L, t, (int32_t)i), &array[i]);
+    /* Physically shrink only separated arrays. */
+    if (LJ_MAX_COLOSIZE != 0 && t->colo <= 0)
+      setmref(t->array, lj_mem_realloc(L, array,
+	      oldasize*sizeof(TValue), asize*sizeof(TValue)));
+  }
+  if (oldhmask > 0) {  /* Reinsert pairs from old hash part. */
+    global_State *g;
+    uint32_t i;
+    for (i = 0; i <= oldhmask; i++) {
+      Node *n = &oldnode[i];
+      if (!tvisnil(&n->val))
+	copyTV(L, lj_tab_set(L, t, &n->key), &n->val);
+    }
+    g = G(L);
+    lj_mem_freevec(g, oldnode, oldhmask+1, Node);
+  }
+}
+
+static uint32_t countint(cTValue *key, uint32_t *bins)
+{
+  lua_assert(!tvisint(key));
+  if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if ((uint32_t)k < LJ_MAX_ASIZE && nk == (lua_Number)k) {
+      bins[(k > 2 ? lj_fls((uint32_t)(k-1)) : 0)]++;
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static uint32_t countarray(const GCtab *t, uint32_t *bins)
+{
+  uint32_t na, b, i;
+  if (t->asize == 0) return 0;
+  for (na = i = b = 0; b < LJ_MAX_ABITS; b++) {
+    uint32_t n, top = 2u << b;
+    TValue *array;
+    if (top >= t->asize) {
+      top = t->asize-1;
+      if (i > top)
+	break;
+    }
+    array = tvref(t->array);
+    for (n = 0; i <= top; i++)
+      if (!tvisnil(&array[i]))
+	n++;
+    bins[b] += n;
+    na += n;
+  }
+  return na;
+}
+
+static uint32_t counthash(const GCtab *t, uint32_t *bins, uint32_t *narray)
+{
+  uint32_t total, na, i, hmask = t->hmask;
+  Node *node = noderef(t->node);
+  for (total = na = 0, i = 0; i <= hmask; i++) {
+    Node *n = &node[i];
+    if (!tvisnil(&n->val)) {
+      na += countint(&n->key, bins);
+      total++;
+    }
+  }
+  *narray += na;
+  return total;
+}
+
+static uint32_t bestasize(uint32_t bins[], uint32_t *narray)
+{
+  uint32_t b, sum, na = 0, sz = 0, nn = *narray;
+  for (b = 0, sum = 0; 2*nn > (1u<<b) && sum != nn; b++)
+    if (bins[b] > 0 && 2*(sum += bins[b]) > (1u<<b)) {
+      sz = (2u<<b)+1;
+      na = sum;
+    }
+  *narray = sz;
+  return na;
+}
+
+static void rehashtab(lua_State *L, GCtab *t, cTValue *ek)
+{
+  uint32_t bins[LJ_MAX_ABITS];
+  uint32_t total, asize, na, i;
+  for (i = 0; i < LJ_MAX_ABITS; i++) bins[i] = 0;
+  asize = countarray(t, bins);
+  total = 1 + asize;
+  total += counthash(t, bins, &asize);
+  asize += countint(ek, bins);
+  na = bestasize(bins, &asize);
+  total -= na;
+  resizetab(L, t, asize, hsize2hbits(total));
+}
+
+#if LJ_HASFFI
+void lj_tab_rehash(lua_State *L, GCtab *t)
+{
+  rehashtab(L, t, niltv(L));
+}
+#endif
+
+void lj_tab_reasize(lua_State *L, GCtab *t, uint32_t nasize)
+{
+  resizetab(L, t, nasize+1, t->hmask > 0 ? lj_fls(t->hmask)+1 : 0);
+}
+
+/* -- Table getters ------------------------------------------------------- */
+
+cTValue * LJ_FASTCALL lj_tab_getinth(GCtab *t, int32_t key)
+{
+  TValue k;
+  Node *n;
+  k.n = (lua_Number)key;
+  n = hashnum(t, &k);
+  do {
+    if (tvisnum(&n->key) && n->key.n == k.n)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return NULL;
+}
+
+cTValue *lj_tab_getstr(GCtab *t, GCstr *key)
+{
+  Node *n = hashstr(t, key);
+  do {
+    if (tvisstr(&n->key) && strV(&n->key) == key)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return NULL;
+}
+
+cTValue *lj_tab_get(lua_State *L, GCtab *t, cTValue *key)
+{
+  if (tvisstr(key)) {
+    cTValue *tv = lj_tab_getstr(t, strV(key));
+    if (tv)
+      return tv;
+  } else if (tvisint(key)) {
+    cTValue *tv = lj_tab_getint(t, intV(key));
+    if (tv)
+      return tv;
+  } else if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if (nk == (lua_Number)k) {
+      cTValue *tv = lj_tab_getint(t, k);
+      if (tv)
+	return tv;
+    } else {
+      goto genlookup;  /* Else use the generic lookup. */
+    }
+  } else if (!tvisnil(key)) {
+    Node *n;
+  genlookup:
+    n = hashkey(t, key);
+    do {
+      if (lj_obj_equal(&n->key, key))
+	return &n->val;
+    } while ((n = nextnode(n)));
+  }
+  return niltv(L);
+}
+
+/* -- Table setters ------------------------------------------------------- */
+
+/* Insert new key. Use Brent's variation to optimize the chain length. */
+TValue *lj_tab_newkey(lua_State *L, GCtab *t, cTValue *key)
+{
+  Node *n = hashkey(t, key);
+  if (!tvisnil(&n->val) || t->hmask == 0) {
+    Node *nodebase = noderef(t->node);
+    Node *collide, *freenode = noderef(nodebase->freetop);
+    lua_assert(freenode >= nodebase && freenode <= nodebase+t->hmask+1);
+    do {
+      if (freenode == nodebase) {  /* No free node found? */
+	rehashtab(L, t, key);  /* Rehash table. */
+	return lj_tab_set(L, t, key);  /* Retry key insertion. */
+      }
+    } while (!tvisnil(&(--freenode)->key));
+    setmref(nodebase->freetop, freenode);
+    lua_assert(freenode != &G(L)->nilnode);
+    collide = hashkey(t, &n->key);
+    if (collide != n) {  /* Colliding node not the main node? */
+      while (noderef(collide->next) != n)  /* Find predecessor. */
+	collide = nextnode(collide);
+      setmref(collide->next, freenode);  /* Relink chain. */
+      /* Copy colliding node into free node and free main node. */
+      freenode->val = n->val;
+      freenode->key = n->key;
+      freenode->next = n->next;
+      setmref(n->next, NULL);
+      setnilV(&n->val);
+      /* Rechain pseudo-resurrected string keys with colliding hashes. */
+      while (nextnode(freenode)) {
+	Node *nn = nextnode(freenode);
+	if (tvisstr(&nn->key) && !tvisnil(&nn->val) &&
+	    hashstr(t, strV(&nn->key)) == n) {
+	  freenode->next = nn->next;
+	  nn->next = n->next;
+	  setmref(n->next, nn);
+	} else {
+	  freenode = nn;
+	}
+      }
+    } else {  /* Otherwise use free node. */
+      setmrefr(freenode->next, n->next);  /* Insert into chain. */
+      setmref(n->next, freenode);
+      n = freenode;
+    }
+  }
+  n->key.u64 = key->u64;
+  if (LJ_UNLIKELY(tvismzero(&n->key)))
+    n->key.u64 = 0;
+  lj_gc_anybarriert(L, t);
+  lua_assert(tvisnil(&n->val));
+  return &n->val;
+}
+
+TValue *lj_tab_setinth(lua_State *L, GCtab *t, int32_t key)
+{
+  TValue k;
+  Node *n;
+  k.n = (lua_Number)key;
+  n = hashnum(t, &k);
+  do {
+    if (tvisnum(&n->key) && n->key.n == k.n)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return lj_tab_newkey(L, t, &k);
+}
+
+TValue *lj_tab_setstr(lua_State *L, GCtab *t, GCstr *key)
+{
+  TValue k;
+  Node *n = hashstr(t, key);
+  do {
+    if (tvisstr(&n->key) && strV(&n->key) == key)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  setstrV(L, &k, key);
+  return lj_tab_newkey(L, t, &k);
+}
+
+TValue *lj_tab_set(lua_State *L, GCtab *t, cTValue *key)
+{
+  Node *n;
+  t->nomm = 0;  /* Invalidate negative metamethod cache. */
+  if (tvisstr(key)) {
+    return lj_tab_setstr(L, t, strV(key));
+  } else if (tvisint(key)) {
+    return lj_tab_setint(L, t, intV(key));
+  } else if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if (nk == (lua_Number)k)
+      return lj_tab_setint(L, t, k);
+    if (tvisnan(key))
+      lj_err_msg(L, LJ_ERR_NANIDX);
+    /* Else use the generic lookup. */
+  } else if (tvisnil(key)) {
+    lj_err_msg(L, LJ_ERR_NILIDX);
+  }
+  n = hashkey(t, key);
+  do {
+    if (lj_obj_equal(&n->key, key))
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return lj_tab_newkey(L, t, key);
+}
+
+/* -- Table traversal ----------------------------------------------------- */
+
+/* Get the traversal index of a key. */
+static uint32_t keyindex(lua_State *L, GCtab *t, cTValue *key)
+{
+  TValue tmp;
+  if (tvisint(key)) {
+    int32_t k = intV(key);
+    if ((uint32_t)k < t->asize)
+      return (uint32_t)k;  /* Array key indexes: [0..t->asize-1] */
+    setnumV(&tmp, (lua_Number)k);
+    key = &tmp;
+  } else if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if ((uint32_t)k < t->asize && nk == (lua_Number)k)
+      return (uint32_t)k;  /* Array key indexes: [0..t->asize-1] */
+  }
+  if (!tvisnil(key)) {
+    Node *n = hashkey(t, key);
+    do {
+      if (lj_obj_equal(&n->key, key))
+	return t->asize + (uint32_t)(n - noderef(t->node));
+	/* Hash key indexes: [t->asize..t->asize+t->nmask] */
+    } while ((n = nextnode(n)));
+    if (key->u32.hi == 0xfffe7fff)  /* ITERN was despecialized while running. */
+      return key->u32.lo - 1;
+    lj_err_msg(L, LJ_ERR_NEXTIDX);
+    return 0;  /* unreachable */
+  }
+  return ~0u;  /* A nil key starts the traversal. */
+}
+
+/* Advance to the next step in a table traversal. */
+int lj_tab_next(lua_State *L, GCtab *t, TValue *key)
+{
+  uint32_t i = keyindex(L, t, key);  /* Find predecessor key index. */
+  for (i++; i < t->asize; i++)  /* First traverse the array keys. */
+    if (!tvisnil(arrayslot(t, i))) {
+      setintV(key, i);
+      copyTV(L, key+1, arrayslot(t, i));
+      return 1;
+    }
+  for (i -= t->asize; i <= t->hmask; i++) {  /* Then traverse the hash keys. */
+    Node *n = &noderef(t->node)[i];
+    if (!tvisnil(&n->val)) {
+      copyTV(L, key, &n->key);
+      copyTV(L, key+1, &n->val);
+      return 1;
+    }
+  }
+  return 0;  /* End of traversal. */
+}
+
+/* -- Table length calculation -------------------------------------------- */
+
+static MSize unbound_search(GCtab *t, MSize j)
+{
+  cTValue *tv;
+  MSize i = j;  /* i is zero or a present index */
+  j++;
+  /* find `i' and `j' such that i is present and j is not */
+  while ((tv = lj_tab_getint(t, (int32_t)j)) && !tvisnil(tv)) {
+    i = j;
+    j *= 2;
+    if (j > (MSize)(INT_MAX-2)) {  /* overflow? */
+      /* table was built with bad purposes: resort to linear search */
+      i = 1;
+      while ((tv = lj_tab_getint(t, (int32_t)i)) && !tvisnil(tv)) i++;
+      return i - 1;
+    }
+  }
+  /* now do a binary search between them */
+  while (j - i > 1) {
+    MSize m = (i+j)/2;
+    cTValue *tvb = lj_tab_getint(t, (int32_t)m);
+    if (tvb && !tvisnil(tvb)) i = m; else j = m;
+  }
+  return i;
+}
+
+/*
+** Try to find a boundary in table `t'. A `boundary' is an integer index
+** such that t[i] is non-nil and t[i+1] is nil (and 0 if t[1] is nil).
+*/
+MSize LJ_FASTCALL lj_tab_len(GCtab *t)
+{
+  MSize j = (MSize)t->asize;
+  if (j > 1 && tvisnil(arrayslot(t, j-1))) {
+    MSize i = 1;
+    while (j - i > 1) {
+      MSize m = (i+j)/2;
+      if (tvisnil(arrayslot(t, m-1))) j = m; else i = m;
+    }
+    return i-1;
+  }
+  if (j) j--;
+  if (t->hmask <= 0)
+    return j;
+  return unbound_search(t, j);
+}
+
diff --git a/lib/luajit/src/lj_tab.h b/lib/luajit/src/lj_tab.h
new file mode 100644
index 00000000..44b1bbbd
--- /dev/null
+++ b/lib/luajit/src/lj_tab.h
@@ -0,0 +1,70 @@
+/*
+** Table handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TAB_H
+#define _LJ_TAB_H
+
+#include "lj_obj.h"
+
+/* Hash constants. Tuned using a brute force search. */
+#define HASH_BIAS	(-0x04c11db7)
+#define HASH_ROT1	14
+#define HASH_ROT2	5
+#define HASH_ROT3	13
+
+/* Scramble the bits of numbers and pointers. */
+static LJ_AINLINE uint32_t hashrot(uint32_t lo, uint32_t hi)
+{
+#if LJ_TARGET_X86ORX64
+  /* Prefer variant that compiles well for a 2-operand CPU. */
+  lo ^= hi; hi = lj_rol(hi, HASH_ROT1);
+  lo -= hi; hi = lj_rol(hi, HASH_ROT2);
+  hi ^= lo; hi -= lj_rol(lo, HASH_ROT3);
+#else
+  lo ^= hi;
+  lo = lo - lj_rol(hi, HASH_ROT1);
+  hi = lo ^ lj_rol(hi, HASH_ROT1 + HASH_ROT2);
+  hi = hi - lj_rol(lo, HASH_ROT3);
+#endif
+  return hi;
+}
+
+#define hsize2hbits(s)	((s) ? ((s)==1 ? 1 : 1+lj_fls((uint32_t)((s)-1))) : 0)
+
+LJ_FUNCA GCtab *lj_tab_new(lua_State *L, uint32_t asize, uint32_t hbits);
+#if LJ_HASJIT
+LJ_FUNC GCtab * LJ_FASTCALL lj_tab_new1(lua_State *L, uint32_t ahsize);
+#endif
+LJ_FUNCA GCtab * LJ_FASTCALL lj_tab_dup(lua_State *L, const GCtab *kt);
+LJ_FUNC void LJ_FASTCALL lj_tab_free(global_State *g, GCtab *t);
+#if LJ_HASFFI
+LJ_FUNC void lj_tab_rehash(lua_State *L, GCtab *t);
+#endif
+LJ_FUNCA void lj_tab_reasize(lua_State *L, GCtab *t, uint32_t nasize);
+
+/* Caveat: all getters except lj_tab_get() can return NULL! */
+
+LJ_FUNCA cTValue * LJ_FASTCALL lj_tab_getinth(GCtab *t, int32_t key);
+LJ_FUNC cTValue *lj_tab_getstr(GCtab *t, GCstr *key);
+LJ_FUNCA cTValue *lj_tab_get(lua_State *L, GCtab *t, cTValue *key);
+
+/* Caveat: all setters require a write barrier for the stored value. */
+
+LJ_FUNCA TValue *lj_tab_newkey(lua_State *L, GCtab *t, cTValue *key);
+LJ_FUNC TValue *lj_tab_setinth(lua_State *L, GCtab *t, int32_t key);
+LJ_FUNC TValue *lj_tab_setstr(lua_State *L, GCtab *t, GCstr *key);
+LJ_FUNC TValue *lj_tab_set(lua_State *L, GCtab *t, cTValue *key);
+
+#define inarray(t, key)		((MSize)(key) < (MSize)(t)->asize)
+#define arrayslot(t, i)		(&tvref((t)->array)[(i)])
+#define lj_tab_getint(t, key) \
+  (inarray((t), (key)) ? arrayslot((t), (key)) : lj_tab_getinth((t), (key)))
+#define lj_tab_setint(L, t, key) \
+  (inarray((t), (key)) ? arrayslot((t), (key)) : lj_tab_setinth(L, (t), (key)))
+
+LJ_FUNCA int lj_tab_next(lua_State *L, GCtab *t, TValue *key);
+LJ_FUNCA MSize LJ_FASTCALL lj_tab_len(GCtab *t);
+
+#endif
diff --git a/lib/luajit/src/lj_target.h b/lib/luajit/src/lj_target.h
new file mode 100644
index 00000000..820a97a4
--- /dev/null
+++ b/lib/luajit/src/lj_target.h
@@ -0,0 +1,162 @@
+/*
+** Definitions for target CPU.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_H
+#define _LJ_TARGET_H
+
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* -- Registers and spill slots ------------------------------------------- */
+
+/* Register type (uint8_t in ir->r). */
+typedef uint32_t Reg;
+
+/* The hi-bit is NOT set for an allocated register. This means the value
+** can be directly used without masking. The hi-bit is set for a register
+** allocation hint or for RID_INIT, RID_SINK or RID_SUNK.
+*/
+#define RID_NONE		0x80
+#define RID_MASK		0x7f
+#define RID_INIT		(RID_NONE|RID_MASK)
+#define RID_SINK		(RID_INIT-1)
+#define RID_SUNK		(RID_INIT-2)
+
+#define ra_noreg(r)		((r) & RID_NONE)
+#define ra_hasreg(r)		(!((r) & RID_NONE))
+
+/* The ra_hashint() macro assumes a previous test for ra_noreg(). */
+#define ra_hashint(r)		((r) < RID_SUNK)
+#define ra_gethint(r)		((Reg)((r) & RID_MASK))
+#define ra_sethint(rr, r)	rr = (uint8_t)((r)|RID_NONE)
+#define ra_samehint(r1, r2)	(ra_gethint((r1)^(r2)) == 0)
+
+/* Spill slot 0 means no spill slot has been allocated. */
+#define SPS_NONE		0
+
+#define ra_hasspill(s)		((s) != SPS_NONE)
+
+/* Combined register and spill slot (uint16_t in ir->prev). */
+typedef uint32_t RegSP;
+
+#define REGSP(r, s)		((r) + ((s) << 8))
+#define REGSP_HINT(r)		((r)|RID_NONE)
+#define REGSP_INIT		REGSP(RID_INIT, 0)
+
+#define regsp_reg(rs)		((rs) & 255)
+#define regsp_spill(rs)		((rs) >> 8)
+#define regsp_used(rs) \
+  (((rs) & ~REGSP(RID_MASK, 0)) != REGSP(RID_NONE, 0))
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Bitset for registers. 32 registers suffice for most architectures.
+** Note that one set holds bits for both GPRs and FPRs.
+*/
+#if LJ_TARGET_PPC || LJ_TARGET_MIPS
+typedef uint64_t RegSet;
+#else
+typedef uint32_t RegSet;
+#endif
+
+#define RID2RSET(r)		(((RegSet)1) << (r))
+#define RSET_EMPTY		((RegSet)0)
+#define RSET_RANGE(lo, hi)	((RID2RSET((hi)-(lo))-1) << (lo))
+
+#define rset_test(rs, r)	((int)((rs) >> (r)) & 1)
+#define rset_set(rs, r)		(rs |= RID2RSET(r))
+#define rset_clear(rs, r)	(rs &= ~RID2RSET(r))
+#define rset_exclude(rs, r)	(rs & ~RID2RSET(r))
+#if LJ_TARGET_PPC || LJ_TARGET_MIPS
+#define rset_picktop(rs)	((Reg)(__builtin_clzll(rs)^63))
+#define rset_pickbot(rs)	((Reg)__builtin_ctzll(rs))
+#else
+#define rset_picktop(rs)	((Reg)lj_fls(rs))
+#define rset_pickbot(rs)	((Reg)lj_ffs(rs))
+#endif
+
+/* -- Register allocation cost -------------------------------------------- */
+
+/* The register allocation heuristic keeps track of the cost for allocating
+** a specific register:
+**
+** A free register (obviously) has a cost of 0 and a 1-bit in the free mask.
+**
+** An already allocated register has the (non-zero) IR reference in the lowest
+** bits and the result of a blended cost-model in the higher bits.
+**
+** The allocator first checks the free mask for a hit. Otherwise an (unrolled)
+** linear search for the minimum cost is used. The search doesn't need to
+** keep track of the position of the minimum, which makes it very fast.
+** The lowest bits of the minimum cost show the desired IR reference whose
+** register is the one to evict.
+**
+** Without the cost-model this degenerates to the standard heuristics for
+** (reverse) linear-scan register allocation. Since code generation is done
+** in reverse, a live interval extends from the last use to the first def.
+** For an SSA IR the IR reference is the first (and only) def and thus
+** trivially marks the end of the interval. The LSRA heuristics says to pick
+** the register whose live interval has the furthest extent, i.e. the lowest
+** IR reference in our case.
+**
+** A cost-model should take into account other factors, like spill-cost and
+** restore- or rematerialization-cost, which depend on the kind of instruction.
+** E.g. constants have zero spill costs, variant instructions have higher
+** costs than invariants and PHIs should preferably never be spilled.
+**
+** Here's a first cut at simple, but effective blended cost-model for R-LSRA:
+** - Due to careful design of the IR, constants already have lower IR
+**   references than invariants and invariants have lower IR references
+**   than variants.
+** - The cost in the upper 16 bits is the sum of the IR reference and a
+**   weighted score. The score currently only takes into account whether
+**   the IRT_ISPHI bit is set in the instruction type.
+** - The PHI weight is the minimum distance (in IR instructions) a PHI
+**   reference has to be further apart from a non-PHI reference to be spilled.
+** - It should be a power of two (for speed) and must be between 2 and 32768.
+**   Good values for the PHI weight seem to be between 40 and 150.
+** - Further study is required.
+*/
+#define REGCOST_PHI_WEIGHT	64
+
+/* Cost for allocating a specific register. */
+typedef uint32_t RegCost;
+
+/* Note: assumes 16 bit IRRef1. */
+#define REGCOST(cost, ref)	((RegCost)(ref) + ((RegCost)(cost) << 16))
+#define regcost_ref(rc)		((IRRef1)(rc))
+
+#define REGCOST_T(t) \
+  ((RegCost)((t)&IRT_ISPHI) * (((RegCost)(REGCOST_PHI_WEIGHT)<<16)/IRT_ISPHI))
+#define REGCOST_REF_T(ref, t)	(REGCOST((ref), (ref)) + REGCOST_T((t)))
+
+/* -- Target-specific definitions ----------------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+#include "lj_target_x86.h"
+#elif LJ_TARGET_ARM
+#include "lj_target_arm.h"
+#elif LJ_TARGET_PPC
+#include "lj_target_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "lj_target_mips.h"
+#else
+#error "Missing include for target CPU"
+#endif
+
+#ifdef EXITSTUBS_PER_GROUP
+/* Return the address of an exit stub. */
+static LJ_AINLINE char *exitstub_addr_(char **group, uint32_t exitno)
+{
+  lua_assert(group[exitno / EXITSTUBS_PER_GROUP] != NULL);
+  return (char *)group[exitno / EXITSTUBS_PER_GROUP] +
+	 EXITSTUB_SPACING*(exitno % EXITSTUBS_PER_GROUP);
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_addr(J, exitno) \
+  ((MCode *)exitstub_addr_((char **)((J)->exitstubgroup), (exitno)))
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_target_arm.h b/lib/luajit/src/lj_target_arm.h
new file mode 100644
index 00000000..63a0c925
--- /dev/null
+++ b/lib/luajit/src/lj_target_arm.h
@@ -0,0 +1,274 @@
+/*
+** Definitions for ARM CPUs.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_ARM_H
+#define _LJ_TARGET_ARM_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(R0) _(R1) _(R2) _(R3) _(R4) _(R5) _(R6) _(R7) \
+  _(R8) _(R9) _(R10) _(R11) _(R12) _(SP) _(LR) _(PC)
+#if LJ_SOFTFP
+#define FPRDEF(_)
+#else
+#define FPRDEF(_) \
+  _(D0) _(D1) _(D2) _(D3) _(D4) _(D5) _(D6) _(D7) \
+  _(D8) _(D9) _(D10) _(D11) _(D12) _(D13) _(D14) _(D15)
+#endif
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_TMP = RID_LR,
+
+  /* Calling conventions. */
+  RID_RET = RID_R0,
+  RID_RETLO = RID_R0,
+  RID_RETHI = RID_R1,
+#if LJ_SOFTFP
+  RID_FPRET = RID_R0,
+#else
+  RID_FPRET = RID_D0,
+#endif
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_R9,		/* Interpreter BASE. */
+  RID_LPC = RID_R6,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R7,	/* Interpreter DISPATCH table. */
+  RID_LREG = RID_R8,		/* Interpreter L. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_R0,
+  RID_MAX_GPR = RID_PC+1,
+  RID_MIN_FPR = RID_MAX_GPR,
+#if LJ_SOFTFP
+  RID_MAX_FPR = RID_MIN_FPR,
+#else
+  RID_MAX_FPR = RID_D15+1,
+#endif
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_R0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except sp, lr and pc. */
+#define RSET_GPR		(RSET_RANGE(RID_MIN_GPR, RID_R12+1))
+#define RSET_GPREVEN \
+  (RID2RSET(RID_R0)|RID2RSET(RID_R2)|RID2RSET(RID_R4)|RID2RSET(RID_R6)| \
+   RID2RSET(RID_R8)|RID2RSET(RID_R10))
+#define RSET_GPRODD \
+  (RID2RSET(RID_R1)|RID2RSET(RID_R3)|RID2RSET(RID_R5)|RID2RSET(RID_R7)| \
+   RID2RSET(RID_R9)|RID2RSET(RID_R11))
+#if LJ_SOFTFP
+#define RSET_FPR		0
+#else
+#define RSET_FPR		(RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR))
+#endif
+#define RSET_ALL		(RSET_GPR|RSET_FPR)
+#define RSET_INIT		RSET_ALL
+
+/* ABI-specific register sets. lr is an implicit scratch register. */
+#define RSET_SCRATCH_GPR_	(RSET_RANGE(RID_R0, RID_R3+1)|RID2RSET(RID_R12))
+#ifdef __APPLE__
+#define RSET_SCRATCH_GPR	(RSET_SCRATCH_GPR_|RID2RSET(RID_R9))
+#else
+#define RSET_SCRATCH_GPR	RSET_SCRATCH_GPR_
+#endif
+#if LJ_SOFTFP
+#define RSET_SCRATCH_FPR	0
+#else
+#define RSET_SCRATCH_FPR	(RSET_RANGE(RID_D0, RID_D7+1))
+#endif
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_R0
+#define REGARG_LASTGPR		RID_R3
+#define REGARG_NUMGPR		4
+#if LJ_ABI_SOFTFP
+#define REGARG_FIRSTFPR		0
+#define REGARG_LASTFPR		0
+#define REGARG_NUMFPR		0
+#else
+#define REGARG_FIRSTFPR		RID_D0
+#define REGARG_LASTFPR		RID_D7
+#define REGARG_NUMFPR		8
+#endif
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use. Reserve min. two 32 bit slots.
+*/
+#define SPS_FIXED	2
+#define SPS_FIRST	2
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 1) & ~1)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+#if !LJ_SOFTFP
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+#endif
+  int32_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* PC after instruction that caused an exit. Used to find the trace number. */
+#define EXITSTATE_PCREG		RID_PC
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+#define EXITSTUB_SPACING        4
+#define EXITSTUBS_PER_GROUP     32
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* Instruction fields. */
+#define ARMF_CC(ai, cc)	(((ai) ^ ARMI_CCAL) | ((cc) << 28))
+#define ARMF_N(r)	((r) << 16)
+#define ARMF_D(r)	((r) << 12)
+#define ARMF_S(r)	((r) << 8)
+#define ARMF_M(r)	(r)
+#define ARMF_SH(sh, n)	(((sh) << 5) | ((n) << 7))
+#define ARMF_RSH(sh, r)	(0x10 | ((sh) << 5) | ARMF_S(r))
+
+typedef enum ARMIns {
+  ARMI_CCAL = 0xe0000000,
+  ARMI_S = 0x000100000,
+  ARMI_K12 = 0x02000000,
+  ARMI_KNEG = 0x00200000,
+  ARMI_LS_W = 0x00200000,
+  ARMI_LS_U = 0x00800000,
+  ARMI_LS_P = 0x01000000,
+  ARMI_LS_R = 0x02000000,
+  ARMI_LSX_I = 0x00400000,
+
+  ARMI_AND = 0xe0000000,
+  ARMI_EOR = 0xe0200000,
+  ARMI_SUB = 0xe0400000,
+  ARMI_RSB = 0xe0600000,
+  ARMI_ADD = 0xe0800000,
+  ARMI_ADC = 0xe0a00000,
+  ARMI_SBC = 0xe0c00000,
+  ARMI_RSC = 0xe0e00000,
+  ARMI_TST = 0xe1100000,
+  ARMI_TEQ = 0xe1300000,
+  ARMI_CMP = 0xe1500000,
+  ARMI_CMN = 0xe1700000,
+  ARMI_ORR = 0xe1800000,
+  ARMI_MOV = 0xe1a00000,
+  ARMI_BIC = 0xe1c00000,
+  ARMI_MVN = 0xe1e00000,
+
+  ARMI_NOP = 0xe1a00000,
+
+  ARMI_MUL = 0xe0000090,
+  ARMI_SMULL = 0xe0c00090,
+
+  ARMI_LDR = 0xe4100000,
+  ARMI_LDRB = 0xe4500000,
+  ARMI_LDRH = 0xe01000b0,
+  ARMI_LDRSB = 0xe01000d0,
+  ARMI_LDRSH = 0xe01000f0,
+  ARMI_LDRD = 0xe00000d0,
+  ARMI_STR = 0xe4000000,
+  ARMI_STRB = 0xe4400000,
+  ARMI_STRH = 0xe00000b0,
+  ARMI_STRD = 0xe00000f0,
+  ARMI_PUSH = 0xe92d0000,
+
+  ARMI_B = 0xea000000,
+  ARMI_BL = 0xeb000000,
+  ARMI_BLX = 0xfa000000,
+  ARMI_BLXr = 0xe12fff30,
+
+  /* ARMv6 */
+  ARMI_REV = 0xe6bf0f30,
+  ARMI_SXTB = 0xe6af0070,
+  ARMI_SXTH = 0xe6bf0070,
+  ARMI_UXTB = 0xe6ef0070,
+  ARMI_UXTH = 0xe6ff0070,
+
+  /* ARMv6T2 */
+  ARMI_MOVW = 0xe3000000,
+  ARMI_MOVT = 0xe3400000,
+
+  /* VFP */
+  ARMI_VMOV_D = 0xeeb00b40,
+  ARMI_VMOV_S = 0xeeb00a40,
+  ARMI_VMOVI_D = 0xeeb00b00,
+
+  ARMI_VMOV_R_S = 0xee100a10,
+  ARMI_VMOV_S_R = 0xee000a10,
+  ARMI_VMOV_RR_D = 0xec500b10,
+  ARMI_VMOV_D_RR = 0xec400b10,
+
+  ARMI_VADD_D = 0xee300b00,
+  ARMI_VSUB_D = 0xee300b40,
+  ARMI_VMUL_D = 0xee200b00,
+  ARMI_VMLA_D = 0xee000b00,
+  ARMI_VMLS_D = 0xee000b40,
+  ARMI_VNMLS_D = 0xee100b00,
+  ARMI_VDIV_D = 0xee800b00,
+
+  ARMI_VABS_D = 0xeeb00bc0,
+  ARMI_VNEG_D = 0xeeb10b40,
+  ARMI_VSQRT_D = 0xeeb10bc0,
+
+  ARMI_VCMP_D = 0xeeb40b40,
+  ARMI_VCMPZ_D = 0xeeb50b40,
+
+  ARMI_VMRS = 0xeef1fa10,
+
+  ARMI_VCVT_S32_F32 = 0xeebd0ac0,
+  ARMI_VCVT_S32_F64 = 0xeebd0bc0,
+  ARMI_VCVT_U32_F32 = 0xeebc0ac0,
+  ARMI_VCVT_U32_F64 = 0xeebc0bc0,
+  ARMI_VCVTR_S32_F32 = 0xeebd0a40,
+  ARMI_VCVTR_S32_F64 = 0xeebd0b40,
+  ARMI_VCVTR_U32_F32 = 0xeebc0a40,
+  ARMI_VCVTR_U32_F64 = 0xeebc0b40,
+  ARMI_VCVT_F32_S32 = 0xeeb80ac0,
+  ARMI_VCVT_F64_S32 = 0xeeb80bc0,
+  ARMI_VCVT_F32_U32 = 0xeeb80a40,
+  ARMI_VCVT_F64_U32 = 0xeeb80b40,
+  ARMI_VCVT_F32_F64 = 0xeeb70bc0,
+  ARMI_VCVT_F64_F32 = 0xeeb70ac0,
+
+  ARMI_VLDR_S = 0xed100a00,
+  ARMI_VLDR_D = 0xed100b00,
+  ARMI_VSTR_S = 0xed000a00,
+  ARMI_VSTR_D = 0xed000b00,
+} ARMIns;
+
+typedef enum ARMShift {
+  ARMSH_LSL, ARMSH_LSR, ARMSH_ASR, ARMSH_ROR
+} ARMShift;
+
+/* ARM condition codes. */
+typedef enum ARMCC {
+  CC_EQ, CC_NE, CC_CS, CC_CC, CC_MI, CC_PL, CC_VS, CC_VC,
+  CC_HI, CC_LS, CC_GE, CC_LT, CC_GT, CC_LE, CC_AL,
+  CC_HS = CC_CS, CC_LO = CC_CC
+} ARMCC;
+
+#endif
diff --git a/lib/luajit/src/lj_target_mips.h b/lib/luajit/src/lj_target_mips.h
new file mode 100644
index 00000000..e0fc152d
--- /dev/null
+++ b/lib/luajit/src/lj_target_mips.h
@@ -0,0 +1,257 @@
+/*
+** Definitions for MIPS CPUs.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_MIPS_H
+#define _LJ_TARGET_MIPS_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(R0) _(R1) _(R2) _(R3) _(R4) _(R5) _(R6) _(R7) \
+  _(R8) _(R9) _(R10) _(R11) _(R12) _(R13) _(R14) _(R15) \
+  _(R16) _(R17) _(R18) _(R19) _(R20) _(R21) _(R22) _(R23) \
+  _(R24) _(R25) _(SYS1) _(SYS2) _(R28) _(SP) _(R30) _(RA)
+#define FPRDEF(_) \
+  _(F0) _(F1) _(F2) _(F3) _(F4) _(F5) _(F6) _(F7) \
+  _(F8) _(F9) _(F10) _(F11) _(F12) _(F13) _(F14) _(F15) \
+  _(F16) _(F17) _(F18) _(F19) _(F20) _(F21) _(F22) _(F23) \
+  _(F24) _(F25) _(F26) _(F27) _(F28) _(F29) _(F30) _(F31)
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_ZERO = RID_R0,
+  RID_TMP = RID_RA,
+
+  /* Calling conventions. */
+  RID_RET = RID_R2,
+#if LJ_LE
+  RID_RETHI = RID_R3,
+  RID_RETLO = RID_R2,
+#else
+  RID_RETHI = RID_R2,
+  RID_RETLO = RID_R3,
+#endif
+  RID_FPRET = RID_F0,
+  RID_CFUNCADDR = RID_R25,
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_R16,		/* Interpreter BASE. */
+  RID_LPC = RID_R18,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R19,	/* Interpreter DISPATCH table. */
+  RID_LREG = RID_R20,		/* Interpreter L. */
+  RID_JGL = RID_R30,		/* On-trace: global_State + 32768. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_R0,
+  RID_MAX_GPR = RID_RA+1,
+  RID_MIN_FPR = RID_F0,
+  RID_MAX_FPR = RID_F31+1,
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR	/* Only even regs are used. */
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_R0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except ZERO, TMP, SP, SYS1, SYS2 and JGL. */
+#define RSET_FIXED \
+  (RID2RSET(RID_ZERO)|RID2RSET(RID_TMP)|RID2RSET(RID_SP)|\
+   RID2RSET(RID_SYS1)|RID2RSET(RID_SYS2)|RID2RSET(RID_JGL))
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
+#define RSET_FPR \
+  (RID2RSET(RID_F0)|RID2RSET(RID_F2)|RID2RSET(RID_F4)|RID2RSET(RID_F6)|\
+   RID2RSET(RID_F8)|RID2RSET(RID_F10)|RID2RSET(RID_F12)|RID2RSET(RID_F14)|\
+   RID2RSET(RID_F16)|RID2RSET(RID_F18)|RID2RSET(RID_F20)|RID2RSET(RID_F22)|\
+   RID2RSET(RID_F24)|RID2RSET(RID_F26)|RID2RSET(RID_F28)|RID2RSET(RID_F30))
+#define RSET_ALL	(RSET_GPR|RSET_FPR)
+#define RSET_INIT	RSET_ALL
+
+#define RSET_SCRATCH_GPR \
+  (RSET_RANGE(RID_R1, RID_R15+1)|\
+   RID2RSET(RID_R24)|RID2RSET(RID_R25)|RID2RSET(RID_R28))
+#define RSET_SCRATCH_FPR \
+  (RID2RSET(RID_F0)|RID2RSET(RID_F2)|RID2RSET(RID_F4)|RID2RSET(RID_F6)|\
+   RID2RSET(RID_F8)|RID2RSET(RID_F10)|RID2RSET(RID_F12)|RID2RSET(RID_F14)|\
+   RID2RSET(RID_F16)|RID2RSET(RID_F18))
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_R4
+#define REGARG_LASTGPR		RID_R7
+#define REGARG_NUMGPR		4
+#define REGARG_FIRSTFPR		RID_F12
+#define REGARG_LASTFPR		RID_F14
+#define REGARG_NUMFPR		2
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use.
+*/
+#define SPS_FIXED	5
+#define SPS_FIRST	4
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 1) & ~1)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+  int32_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+/* Return the address of a per-trace exit stub. */
+static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p)
+{
+  while (*p == 0x00000000) p++;  /* Skip MIPSI_NOP. */
+  return p;
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_trace_addr(T, exitno) \
+  exitstub_trace_addr_((MCode *)((char *)(T)->mcode + (T)->szmcode))
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* Instruction fields. */
+#define MIPSF_S(r)	((r) << 21)
+#define MIPSF_T(r)	((r) << 16)
+#define MIPSF_D(r)	((r) << 11)
+#define MIPSF_R(r)	((r) << 21)
+#define MIPSF_H(r)	((r) << 16)
+#define MIPSF_G(r)	((r) << 11)
+#define MIPSF_F(r)	((r) << 6)
+#define MIPSF_A(n)	((n) << 6)
+#define MIPSF_M(n)	((n) << 11)
+
+typedef enum MIPSIns {
+  /* Integer instructions. */
+  MIPSI_MOVE = 0x00000021,
+  MIPSI_NOP = 0x00000000,
+
+  MIPSI_LI = 0x24000000,
+  MIPSI_LU = 0x34000000,
+  MIPSI_LUI = 0x3c000000,
+
+  MIPSI_ADDIU = 0x24000000,
+  MIPSI_ANDI = 0x30000000,
+  MIPSI_ORI = 0x34000000,
+  MIPSI_XORI = 0x38000000,
+  MIPSI_SLTI = 0x28000000,
+  MIPSI_SLTIU = 0x2c000000,
+
+  MIPSI_ADDU = 0x00000021,
+  MIPSI_SUBU = 0x00000023,
+  MIPSI_MUL = 0x70000002,
+  MIPSI_AND = 0x00000024,
+  MIPSI_OR = 0x00000025,
+  MIPSI_XOR = 0x00000026,
+  MIPSI_NOR = 0x00000027,
+  MIPSI_SLT = 0x0000002a,
+  MIPSI_SLTU = 0x0000002b,
+  MIPSI_MOVZ = 0x0000000a,
+  MIPSI_MOVN = 0x0000000b,
+
+  MIPSI_SLL = 0x00000000,
+  MIPSI_SRL = 0x00000002,
+  MIPSI_SRA = 0x00000003,
+  MIPSI_ROTR = 0x00200002,	/* MIPS32R2 */
+  MIPSI_SLLV = 0x00000004,
+  MIPSI_SRLV = 0x00000006,
+  MIPSI_SRAV = 0x00000007,
+  MIPSI_ROTRV = 0x00000046,	/* MIPS32R2 */
+
+  MIPSI_SEB = 0x7c000420,	/* MIPS32R2 */
+  MIPSI_SEH = 0x7c000620,	/* MIPS32R2 */
+  MIPSI_WSBH = 0x7c0000a0,	/* MIPS32R2 */
+
+  MIPSI_B = 0x10000000,
+  MIPSI_J = 0x08000000,
+  MIPSI_JAL = 0x0c000000,
+  MIPSI_JR = 0x00000008,
+  MIPSI_JALR = 0x0000f809,
+
+  MIPSI_BEQ = 0x10000000,
+  MIPSI_BNE = 0x14000000,
+  MIPSI_BLEZ = 0x18000000,
+  MIPSI_BGTZ = 0x1c000000,
+  MIPSI_BLTZ = 0x04000000,
+  MIPSI_BGEZ = 0x04010000,
+
+  /* Load/store instructions. */
+  MIPSI_LW = 0x8c000000,
+  MIPSI_SW = 0xac000000,
+  MIPSI_LB = 0x80000000,
+  MIPSI_SB = 0xa0000000,
+  MIPSI_LH = 0x84000000,
+  MIPSI_SH = 0xa4000000,
+  MIPSI_LBU = 0x90000000,
+  MIPSI_LHU = 0x94000000,
+  MIPSI_LWC1 = 0xc4000000,
+  MIPSI_SWC1 = 0xe4000000,
+  MIPSI_LDC1 = 0xd4000000,
+  MIPSI_SDC1 = 0xf4000000,
+
+  /* FP instructions. */
+  MIPSI_MOV_S = 0x46000006,
+  MIPSI_MOV_D = 0x46200006,
+  MIPSI_MOVT_D = 0x46210011,
+  MIPSI_MOVF_D = 0x46200011,
+
+  MIPSI_ABS_D = 0x46200005,
+  MIPSI_NEG_D = 0x46200007,
+
+  MIPSI_ADD_D = 0x46200000,
+  MIPSI_SUB_D = 0x46200001,
+  MIPSI_MUL_D = 0x46200002,
+  MIPSI_DIV_D = 0x46200003,
+  MIPSI_SQRT_D = 0x46200004,
+
+  MIPSI_ADD_S = 0x46000000,
+  MIPSI_SUB_S = 0x46000001,
+
+  MIPSI_CVT_D_S = 0x46000021,
+  MIPSI_CVT_W_S = 0x46000024,
+  MIPSI_CVT_S_D = 0x46200020,
+  MIPSI_CVT_W_D = 0x46200024,
+  MIPSI_CVT_S_W = 0x46800020,
+  MIPSI_CVT_D_W = 0x46800021,
+
+  MIPSI_TRUNC_W_S = 0x4600000d,
+  MIPSI_TRUNC_W_D = 0x4620000d,
+  MIPSI_FLOOR_W_S = 0x4600000f,
+  MIPSI_FLOOR_W_D = 0x4620000f,
+
+  MIPSI_MFC1 = 0x44000000,
+  MIPSI_MTC1 = 0x44800000,
+
+  MIPSI_BC1F = 0x45000000,
+  MIPSI_BC1T = 0x45010000,
+
+  MIPSI_C_EQ_D = 0x46200032,
+  MIPSI_C_OLT_D = 0x46200034,
+  MIPSI_C_ULT_D = 0x46200035,
+  MIPSI_C_OLE_D = 0x46200036,
+  MIPSI_C_ULE_D = 0x46200037,
+
+} MIPSIns;
+
+#endif
diff --git a/lib/luajit/src/lj_target_ppc.h b/lib/luajit/src/lj_target_ppc.h
new file mode 100644
index 00000000..475e0465
--- /dev/null
+++ b/lib/luajit/src/lj_target_ppc.h
@@ -0,0 +1,280 @@
+/*
+** Definitions for PPC CPUs.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_PPC_H
+#define _LJ_TARGET_PPC_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(R0) _(SP) _(SYS1) _(R3) _(R4) _(R5) _(R6) _(R7) \
+  _(R8) _(R9) _(R10) _(R11) _(R12) _(SYS2) _(R14) _(R15) \
+  _(R16) _(R17) _(R18) _(R19) _(R20) _(R21) _(R22) _(R23) \
+  _(R24) _(R25) _(R26) _(R27) _(R28) _(R29) _(R30) _(R31)
+#define FPRDEF(_) \
+  _(F0) _(F1) _(F2) _(F3) _(F4) _(F5) _(F6) _(F7) \
+  _(F8) _(F9) _(F10) _(F11) _(F12) _(F13) _(F14) _(F15) \
+  _(F16) _(F17) _(F18) _(F19) _(F20) _(F21) _(F22) _(F23) \
+  _(F24) _(F25) _(F26) _(F27) _(F28) _(F29) _(F30) _(F31)
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_TMP = RID_R0,
+
+  /* Calling conventions. */
+  RID_RET = RID_R3,
+  RID_RETHI = RID_R3,
+  RID_RETLO = RID_R4,
+  RID_FPRET = RID_F1,
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_R14,		/* Interpreter BASE. */
+  RID_LPC = RID_R16,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R17,	/* Interpreter DISPATCH table. */
+  RID_LREG = RID_R18,		/* Interpreter L. */
+  RID_JGL = RID_R31,		/* On-trace: global_State + 32768. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_R0,
+  RID_MAX_GPR = RID_R31+1,
+  RID_MIN_FPR = RID_F0,
+  RID_MAX_FPR = RID_F31+1,
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_R0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except TMP, SP, SYS1, SYS2 and JGL. */
+#define RSET_FIXED \
+  (RID2RSET(RID_TMP)|RID2RSET(RID_SP)|RID2RSET(RID_SYS1)|\
+   RID2RSET(RID_SYS2)|RID2RSET(RID_JGL))
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
+#define RSET_FPR	RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
+#define RSET_ALL	(RSET_GPR|RSET_FPR)
+#define RSET_INIT	RSET_ALL
+
+#define RSET_SCRATCH_GPR	(RSET_RANGE(RID_R3, RID_R12+1))
+#define RSET_SCRATCH_FPR	(RSET_RANGE(RID_F0, RID_F13+1))
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_R3
+#define REGARG_LASTGPR		RID_R10
+#define REGARG_NUMGPR		8
+#define REGARG_FIRSTFPR		RID_F1
+#define REGARG_LASTFPR		RID_F8
+#define REGARG_NUMFPR		8
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use.
+** [sp+12] tmplo word \
+** [sp+ 8] tmphi word / tmp dword, parameter area for callee
+** [sp+ 4] tmpw, LR of callee
+** [sp+ 0] stack chain
+*/
+#define SPS_FIXED	7
+#define SPS_FIRST	4
+
+/* Stack offsets for temporary slots. Used for FP<->int conversions etc. */
+#define SPOFS_TMPW	4
+#define SPOFS_TMP	8
+#define SPOFS_TMPHI	8
+#define SPOFS_TMPLO	12
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 3) & ~3)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+  int32_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+/* Return the address of a per-trace exit stub. */
+static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p, uint32_t exitno)
+{
+  while (*p == 0x60000000) p++;  /* Skip PPCI_NOP. */
+  return p + 3 + exitno;
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_trace_addr(T, exitno) \
+  exitstub_trace_addr_((MCode *)((char *)(T)->mcode + (T)->szmcode), (exitno))
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* Instruction fields. */
+#define PPCF_CC(cc)	((((cc) & 3) << 16) | (((cc) & 4) << 22))
+#define PPCF_T(r)	((r) << 21)
+#define PPCF_A(r)	((r) << 16)
+#define PPCF_B(r)	((r) << 11)
+#define PPCF_C(r)	((r) << 6)
+#define PPCF_MB(n)	((n) << 6)
+#define PPCF_ME(n)	((n) << 1)
+#define PPCF_Y		0x00200000
+#define PPCF_DOT	0x00000001
+
+typedef enum PPCIns {
+  /* Integer instructions. */
+  PPCI_MR = 0x7c000378,
+  PPCI_NOP = 0x60000000,
+
+  PPCI_LI = 0x38000000,
+  PPCI_LIS = 0x3c000000,
+
+  PPCI_ADD = 0x7c000214,
+  PPCI_ADDC = 0x7c000014,
+  PPCI_ADDO = 0x7c000614,
+  PPCI_ADDE = 0x7c000114,
+  PPCI_ADDZE = 0x7c000194,
+  PPCI_ADDME = 0x7c0001d4,
+  PPCI_ADDI = 0x38000000,
+  PPCI_ADDIS = 0x3c000000,
+  PPCI_ADDIC = 0x30000000,
+  PPCI_ADDICDOT = 0x34000000,
+
+  PPCI_SUBF = 0x7c000050,
+  PPCI_SUBFC = 0x7c000010,
+  PPCI_SUBFO = 0x7c000450,
+  PPCI_SUBFE = 0x7c000110,
+  PPCI_SUBFZE = 0x7c000190,
+  PPCI_SUBFME = 0x7c0001d0,
+  PPCI_SUBFIC = 0x20000000,
+
+  PPCI_NEG = 0x7c0000d0,
+
+  PPCI_AND = 0x7c000038,
+  PPCI_ANDC = 0x7c000078,
+  PPCI_NAND = 0x7c0003b8,
+  PPCI_ANDIDOT = 0x70000000,
+  PPCI_ANDISDOT = 0x74000000,
+
+  PPCI_OR = 0x7c000378,
+  PPCI_NOR = 0x7c0000f8,
+  PPCI_ORI = 0x60000000,
+  PPCI_ORIS = 0x64000000,
+
+  PPCI_XOR = 0x7c000278,
+  PPCI_EQV = 0x7c000238,
+  PPCI_XORI = 0x68000000,
+  PPCI_XORIS = 0x6c000000,
+
+  PPCI_CMPW = 0x7c000000,
+  PPCI_CMPLW = 0x7c000040,
+  PPCI_CMPWI = 0x2c000000,
+  PPCI_CMPLWI = 0x28000000,
+
+  PPCI_MULLW = 0x7c0001d6,
+  PPCI_MULLI = 0x1c000000,
+  PPCI_MULLWO = 0x7c0005d6,
+
+  PPCI_EXTSB = 0x7c000774,
+  PPCI_EXTSH = 0x7c000734,
+
+  PPCI_SLW = 0x7c000030,
+  PPCI_SRW = 0x7c000430,
+  PPCI_SRAW = 0x7c000630,
+  PPCI_SRAWI = 0x7c000670,
+
+  PPCI_RLWNM = 0x5c000000,
+  PPCI_RLWINM = 0x54000000,
+  PPCI_RLWIMI = 0x50000000,
+
+  PPCI_B = 0x48000000,
+  PPCI_BL = 0x48000001,
+  PPCI_BC = 0x40800000,
+  PPCI_BCL = 0x40800001,
+  PPCI_BCTR = 0x4e800420,
+  PPCI_BCTRL = 0x4e800421,
+
+  PPCI_CRANDC = 0x4c000102,
+  PPCI_CRXOR = 0x4c000182,
+  PPCI_CRAND = 0x4c000202,
+  PPCI_CREQV = 0x4c000242,
+  PPCI_CRORC = 0x4c000342,
+  PPCI_CROR = 0x4c000382,
+
+  PPCI_MFLR = 0x7c0802a6,
+  PPCI_MTCTR = 0x7c0903a6,
+
+  PPCI_MCRXR = 0x7c000400,
+
+  /* Load/store instructions. */
+  PPCI_LWZ = 0x80000000,
+  PPCI_LBZ = 0x88000000,
+  PPCI_STW = 0x90000000,
+  PPCI_STB = 0x98000000,
+  PPCI_LHZ = 0xa0000000,
+  PPCI_LHA = 0xa8000000,
+  PPCI_STH = 0xb0000000,
+
+  PPCI_STWU = 0x94000000,
+
+  PPCI_LFS = 0xc0000000,
+  PPCI_LFD = 0xc8000000,
+  PPCI_STFS = 0xd0000000,
+  PPCI_STFD = 0xd8000000,
+
+  PPCI_LWZX = 0x7c00002e,
+  PPCI_LBZX = 0x7c0000ae,
+  PPCI_STWX = 0x7c00012e,
+  PPCI_STBX = 0x7c0001ae,
+  PPCI_LHZX = 0x7c00022e,
+  PPCI_LHAX = 0x7c0002ae,
+  PPCI_STHX = 0x7c00032e,
+
+  PPCI_LWBRX = 0x7c00042c,
+  PPCI_STWBRX = 0x7c00052c,
+
+  PPCI_LFSX = 0x7c00042e,
+  PPCI_LFDX = 0x7c0004ae,
+  PPCI_STFSX = 0x7c00052e,
+  PPCI_STFDX = 0x7c0005ae,
+
+  /* FP instructions. */
+  PPCI_FMR = 0xfc000090,
+  PPCI_FNEG = 0xfc000050,
+  PPCI_FABS = 0xfc000210,
+
+  PPCI_FRSP = 0xfc000018,
+  PPCI_FCTIWZ = 0xfc00001e,
+
+  PPCI_FADD = 0xfc00002a,
+  PPCI_FSUB = 0xfc000028,
+  PPCI_FMUL = 0xfc000032,
+  PPCI_FDIV = 0xfc000024,
+  PPCI_FSQRT = 0xfc00002c,
+
+  PPCI_FMADD = 0xfc00003a,
+  PPCI_FMSUB = 0xfc000038,
+  PPCI_FNMSUB = 0xfc00003c,
+
+  PPCI_FCMPU = 0xfc000000,
+  PPCI_FSEL = 0xfc00002e,
+} PPCIns;
+
+typedef enum PPCCC {
+  CC_GE, CC_LE, CC_NE, CC_NS, CC_LT, CC_GT, CC_EQ, CC_SO
+} PPCCC;
+
+#endif
diff --git a/lib/luajit/src/lj_target_x86.h b/lib/luajit/src/lj_target_x86.h
new file mode 100644
index 00000000..41f401b0
--- /dev/null
+++ b/lib/luajit/src/lj_target_x86.h
@@ -0,0 +1,342 @@
+/*
+** Definitions for x86 and x64 CPUs.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_X86_H
+#define _LJ_TARGET_X86_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#if LJ_64
+#define GPRDEF(_) \
+  _(EAX) _(ECX) _(EDX) _(EBX) _(ESP) _(EBP) _(ESI) _(EDI) \
+  _(R8D) _(R9D) _(R10D) _(R11D) _(R12D) _(R13D) _(R14D) _(R15D)
+#define FPRDEF(_) \
+  _(XMM0) _(XMM1) _(XMM2) _(XMM3) _(XMM4) _(XMM5) _(XMM6) _(XMM7) \
+  _(XMM8) _(XMM9) _(XMM10) _(XMM11) _(XMM12) _(XMM13) _(XMM14) _(XMM15)
+#else
+#define GPRDEF(_) \
+  _(EAX) _(ECX) _(EDX) _(EBX) _(ESP) _(EBP) _(ESI) _(EDI)
+#define FPRDEF(_) \
+  _(XMM0) _(XMM1) _(XMM2) _(XMM3) _(XMM4) _(XMM5) _(XMM6) _(XMM7)
+#endif
+#define VRIDDEF(_) \
+  _(MRM)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_MRM = RID_MAX,		/* Pseudo-id for ModRM operand. */
+
+  /* Calling conventions. */
+  RID_RET = RID_EAX,
+#if LJ_64
+  RID_FPRET = RID_XMM0,
+#else
+  RID_RETLO = RID_EAX,
+  RID_RETHI = RID_EDX,
+#endif
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_EDX,		/* Interpreter BASE. */
+#if LJ_64 && !LJ_ABI_WIN
+  RID_LPC = RID_EBX,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R14D,	/* Interpreter DISPATCH table. */
+#else
+  RID_LPC = RID_ESI,		/* Interpreter PC. */
+  RID_DISPATCH = RID_EBX,	/* Interpreter DISPATCH table. */
+#endif
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_EAX,
+  RID_MIN_FPR = RID_XMM0,
+  RID_MAX_GPR = RID_MIN_FPR,
+  RID_MAX_FPR = RID_MAX,
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR,
+};
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except the stack pointer. */
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR)-RID2RSET(RID_ESP))
+#define RSET_FPR	(RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR))
+#define RSET_ALL	(RSET_GPR|RSET_FPR)
+#define RSET_INIT	RSET_ALL
+
+#if LJ_64
+/* Note: this requires the use of FORCE_REX! */
+#define RSET_GPR8	RSET_GPR
+#else
+#define RSET_GPR8	(RSET_RANGE(RID_EAX, RID_EBX+1))
+#endif
+
+/* ABI-specific register sets. */
+#define RSET_ACD	(RID2RSET(RID_EAX)|RID2RSET(RID_ECX)|RID2RSET(RID_EDX))
+#if LJ_64
+#if LJ_ABI_WIN
+/* Windows x64 ABI. */
+#define RSET_SCRATCH \
+  (RSET_ACD|RSET_RANGE(RID_R8D, RID_R11D+1)|RSET_RANGE(RID_XMM0, RID_XMM5+1))
+#define REGARG_GPRS \
+  (RID_ECX|((RID_EDX|((RID_R8D|(RID_R9D<<5))<<5))<<5))
+#define REGARG_NUMGPR	4
+#define REGARG_NUMFPR	4
+#define REGARG_FIRSTFPR	RID_XMM0
+#define REGARG_LASTFPR	RID_XMM3
+#define STACKARG_OFS	(4*8)
+#else
+/* The rest of the civilized x64 world has a common ABI. */
+#define RSET_SCRATCH \
+  (RSET_ACD|RSET_RANGE(RID_ESI, RID_R11D+1)|RSET_FPR)
+#define REGARG_GPRS \
+  (RID_EDI|((RID_ESI|((RID_EDX|((RID_ECX|((RID_R8D|(RID_R9D \
+   <<5))<<5))<<5))<<5))<<5))
+#define REGARG_NUMGPR	6
+#define REGARG_NUMFPR	8
+#define REGARG_FIRSTFPR	RID_XMM0
+#define REGARG_LASTFPR	RID_XMM7
+#define STACKARG_OFS	0
+#endif
+#else
+/* Common x86 ABI. */
+#define RSET_SCRATCH	(RSET_ACD|RSET_FPR)
+#define REGARG_GPRS	(RID_ECX|(RID_EDX<<5))  /* Fastcall only. */
+#define REGARG_NUMGPR	2  /* Fastcall only. */
+#define REGARG_NUMFPR	0
+#define STACKARG_OFS	0
+#endif
+
+#if LJ_64
+/* Prefer the low 8 regs of each type to reduce REX prefixes. */
+#undef rset_picktop
+#define rset_picktop(rs)	(lj_fls(lj_bswap(rs)) ^ 0x18)
+#endif
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use. Reserve min. two 32 bit slots.
+*/
+#if LJ_64
+#if LJ_ABI_WIN
+#define SPS_FIXED	(4*2)
+#define SPS_FIRST	(4*2)	/* Don't use callee register save area. */
+#else
+#define SPS_FIXED	4
+#define SPS_FIRST	2
+#endif
+#else
+#define SPS_FIXED	6
+#define SPS_FIRST	2
+#endif
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 3) & ~3)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+  intptr_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Limited by the range of a short fwd jump (127): (2+2)*(32-1)-2 = 122. */
+#define EXITSTUB_SPACING	(2+2)
+#define EXITSTUBS_PER_GROUP	32
+
+/* -- x86 ModRM operand encoding ------------------------------------------ */
+
+typedef enum {
+  XM_OFS0 = 0x00, XM_OFS8 = 0x40, XM_OFS32 = 0x80, XM_REG = 0xc0,
+  XM_SCALE1 = 0x00, XM_SCALE2 = 0x40, XM_SCALE4 = 0x80, XM_SCALE8 = 0xc0,
+  XM_MASK = 0xc0
+} x86Mode;
+
+/* Structure to hold variable ModRM operand. */
+typedef struct {
+  int32_t ofs;		/* Offset. */
+  uint8_t base;		/* Base register or RID_NONE. */
+  uint8_t idx;		/* Index register or RID_NONE. */
+  uint8_t scale;	/* Index scale (XM_SCALE1 .. XM_SCALE8). */
+} x86ModRM;
+
+/* -- Opcodes ------------------------------------------------------------- */
+
+/* Macros to construct variable-length x86 opcodes. -(len+1) is in LSB. */
+#define XO_(o)		((uint32_t)(0x0000fe + (0x##o<<24)))
+#define XO_FPU(a,b)	((uint32_t)(0x00fd + (0x##a<<16)+(0x##b<<24)))
+#define XO_0f(o)	((uint32_t)(0x0f00fd + (0x##o<<24)))
+#define XO_66(o)	((uint32_t)(0x6600fd + (0x##o<<24)))
+#define XO_660f(o)	((uint32_t)(0x0f66fc + (0x##o<<24)))
+#define XO_f20f(o)	((uint32_t)(0x0ff2fc + (0x##o<<24)))
+#define XO_f30f(o)	((uint32_t)(0x0ff3fc + (0x##o<<24)))
+
+/* This list of x86 opcodes is not intended to be complete. Opcodes are only
+** included when needed. Take a look at DynASM or jit.dis_x86 to see the
+** whole mess.
+*/
+typedef enum {
+  /* Fixed length opcodes. XI_* prefix. */
+  XI_NOP =	0x90,
+  XI_XCHGa =	0x90,
+  XI_CALL =	0xe8,
+  XI_JMP =	0xe9,
+  XI_JMPs =	0xeb,
+  XI_PUSH =	0x50, /* Really 50+r. */
+  XI_JCCs =	0x70, /* Really 7x. */
+  XI_JCCn =	0x80, /* Really 0f8x. */
+  XI_LEA =	0x8d,
+  XI_MOVrib =	0xb0, /* Really b0+r. */
+  XI_MOVri =	0xb8, /* Really b8+r. */
+  XI_ARITHib =	0x80,
+  XI_ARITHi =	0x81,
+  XI_ARITHi8 =	0x83,
+  XI_PUSHi8 =	0x6a,
+  XI_TESTb =	0x84,
+  XI_TEST =	0x85,
+  XI_MOVmi =	0xc7,
+  XI_GROUP5 =	0xff,
+
+  /* Note: little-endian byte-order! */
+  XI_FLDZ =	0xeed9,
+  XI_FLD1 =	0xe8d9,
+  XI_FLDLG2 =	0xecd9,
+  XI_FLDLN2 =	0xedd9,
+  XI_FDUP =	0xc0d9,  /* Really fld st0. */
+  XI_FPOP =	0xd8dd,  /* Really fstp st0. */
+  XI_FPOP1 =	0xd9dd,  /* Really fstp st1. */
+  XI_FRNDINT =	0xfcd9,
+  XI_FSIN =	0xfed9,
+  XI_FCOS =	0xffd9,
+  XI_FPTAN =	0xf2d9,
+  XI_FPATAN =	0xf3d9,
+  XI_FSCALE =	0xfdd9,
+  XI_FYL2X =	0xf1d9,
+
+  /* Variable-length opcodes. XO_* prefix. */
+  XO_MOV =	XO_(8b),
+  XO_MOVto =	XO_(89),
+  XO_MOVtow =	XO_66(89),
+  XO_MOVtob =	XO_(88),
+  XO_MOVmi =	XO_(c7),
+  XO_MOVmib =	XO_(c6),
+  XO_LEA =	XO_(8d),
+  XO_ARITHib =	XO_(80),
+  XO_ARITHi =	XO_(81),
+  XO_ARITHi8 =	XO_(83),
+  XO_ARITHiw8 =	XO_66(83),
+  XO_SHIFTi =	XO_(c1),
+  XO_SHIFT1 =	XO_(d1),
+  XO_SHIFTcl =	XO_(d3),
+  XO_IMUL =	XO_0f(af),
+  XO_IMULi =	XO_(69),
+  XO_IMULi8 =	XO_(6b),
+  XO_CMP =	XO_(3b),
+  XO_TESTb =	XO_(84),
+  XO_TEST =	XO_(85),
+  XO_GROUP3b =	XO_(f6),
+  XO_GROUP3 =	XO_(f7),
+  XO_GROUP5b =	XO_(fe),
+  XO_GROUP5 =	XO_(ff),
+  XO_MOVZXb =	XO_0f(b6),
+  XO_MOVZXw =	XO_0f(b7),
+  XO_MOVSXb =	XO_0f(be),
+  XO_MOVSXw =	XO_0f(bf),
+  XO_MOVSXd =	XO_(63),
+  XO_BSWAP =	XO_0f(c8),
+  XO_CMOV =	XO_0f(40),
+
+  XO_MOVSD =	XO_f20f(10),
+  XO_MOVSDto =	XO_f20f(11),
+  XO_MOVSS =	XO_f30f(10),
+  XO_MOVSSto =	XO_f30f(11),
+  XO_MOVLPD =	XO_660f(12),
+  XO_MOVAPS =	XO_0f(28),
+  XO_XORPS =	XO_0f(57),
+  XO_ANDPS =	XO_0f(54),
+  XO_ADDSD =	XO_f20f(58),
+  XO_SUBSD =	XO_f20f(5c),
+  XO_MULSD =	XO_f20f(59),
+  XO_DIVSD =	XO_f20f(5e),
+  XO_SQRTSD =	XO_f20f(51),
+  XO_MINSD =	XO_f20f(5d),
+  XO_MAXSD =	XO_f20f(5f),
+  XO_ROUNDSD =	0x0b3a0ffc,  /* Really 66 0f 3a 0b. See asm_fpmath. */
+  XO_UCOMISD =	XO_660f(2e),
+  XO_CVTSI2SD =	XO_f20f(2a),
+  XO_CVTSD2SI =	XO_f20f(2d),
+  XO_CVTTSD2SI=	XO_f20f(2c),
+  XO_CVTSI2SS =	XO_f30f(2a),
+  XO_CVTSS2SI =	XO_f30f(2d),
+  XO_CVTTSS2SI=	XO_f30f(2c),
+  XO_CVTSS2SD =	XO_f30f(5a),
+  XO_CVTSD2SS =	XO_f20f(5a),
+  XO_ADDSS =	XO_f30f(58),
+  XO_MOVD =	XO_660f(6e),
+  XO_MOVDto =	XO_660f(7e),
+
+  XO_FLDd =	XO_(d9), XOg_FLDd = 0,
+  XO_FLDq =	XO_(dd), XOg_FLDq = 0,
+  XO_FILDd =	XO_(db), XOg_FILDd = 0,
+  XO_FILDq =	XO_(df), XOg_FILDq = 5,
+  XO_FSTPd =	XO_(d9), XOg_FSTPd = 3,
+  XO_FSTPq =	XO_(dd), XOg_FSTPq = 3,
+  XO_FISTPq =	XO_(df), XOg_FISTPq = 7,
+  XO_FISTTPq =	XO_(dd), XOg_FISTTPq = 1,
+  XO_FADDq =	XO_(dc), XOg_FADDq = 0,
+  XO_FLDCW =	XO_(d9), XOg_FLDCW = 5,
+  XO_FNSTCW =	XO_(d9), XOg_FNSTCW = 7
+} x86Op;
+
+/* x86 opcode groups. */
+typedef uint32_t x86Group;
+
+#define XG_(i8, i, g)	((x86Group)(((i8) << 16) + ((i) << 8) + (g)))
+#define XG_ARITHi(g)	XG_(XI_ARITHi8, XI_ARITHi, g)
+#define XG_TOXOi(xg)	((x86Op)(0x000000fe + (((xg)<<16) & 0xff000000)))
+#define XG_TOXOi8(xg)	((x86Op)(0x000000fe + (((xg)<<8) & 0xff000000)))
+
+#define XO_ARITH(a)	((x86Op)(0x030000fe + ((a)<<27)))
+#define XO_ARITHw(a)	((x86Op)(0x036600fd + ((a)<<27)))
+
+typedef enum {
+  XOg_ADD, XOg_OR, XOg_ADC, XOg_SBB, XOg_AND, XOg_SUB, XOg_XOR, XOg_CMP,
+  XOg_X_IMUL
+} x86Arith;
+
+typedef enum {
+  XOg_ROL, XOg_ROR, XOg_RCL, XOg_RCR, XOg_SHL, XOg_SHR, XOg_SAL, XOg_SAR
+} x86Shift;
+
+typedef enum {
+  XOg_TEST, XOg_TEST_, XOg_NOT, XOg_NEG, XOg_MUL, XOg_IMUL, XOg_DIV, XOg_IDIV
+} x86Group3;
+
+typedef enum {
+  XOg_INC, XOg_DEC, XOg_CALL, XOg_CALLfar, XOg_JMP, XOg_JMPfar, XOg_PUSH
+} x86Group5;
+
+/* x86 condition codes. */
+typedef enum {
+  CC_O, CC_NO, CC_B, CC_NB, CC_E, CC_NE, CC_BE, CC_NBE,
+  CC_S, CC_NS, CC_P, CC_NP, CC_L, CC_NL, CC_LE, CC_NLE,
+  CC_C = CC_B, CC_NAE = CC_C, CC_NC = CC_NB, CC_AE = CC_NB,
+  CC_Z = CC_E, CC_NZ = CC_NE, CC_NA = CC_BE, CC_A = CC_NBE,
+  CC_PE = CC_P, CC_PO = CC_NP, CC_NGE = CC_L, CC_GE = CC_NL,
+  CC_NG = CC_LE, CC_G = CC_NLE
+} x86CC;
+
+#endif
diff --git a/lib/luajit/src/lj_trace.c b/lib/luajit/src/lj_trace.c
new file mode 100644
index 00000000..9e5e400f
--- /dev/null
+++ b/lib/luajit/src/lj_trace.c
@@ -0,0 +1,815 @@
+/*
+** Trace management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_trace_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_frame.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_gdbjit.h"
+#include "lj_record.h"
+#include "lj_asm.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+#include "lj_target.h"
+
+/* -- Error handling ------------------------------------------------------ */
+
+/* Synchronous abort with error message. */
+void lj_trace_err(jit_State *J, TraceError e)
+{
+  setnilV(&J->errinfo);  /* No error info. */
+  setintV(J->L->top++, (int32_t)e);
+  lj_err_throw(J->L, LUA_ERRRUN);
+}
+
+/* Synchronous abort with error message and error info. */
+void lj_trace_err_info(jit_State *J, TraceError e)
+{
+  setintV(J->L->top++, (int32_t)e);
+  lj_err_throw(J->L, LUA_ERRRUN);
+}
+
+/* -- Trace management ---------------------------------------------------- */
+
+/* The current trace is first assembled in J->cur. The variable length
+** arrays point to shared, growable buffers (J->irbuf etc.). When trace
+** recording ends successfully, the current trace and its data structures
+** are copied to a new (compact) GCtrace object.
+*/
+
+/* Find a free trace number. */
+static TraceNo trace_findfree(jit_State *J)
+{
+  MSize osz, lim;
+  if (J->freetrace == 0)
+    J->freetrace = 1;
+  for (; J->freetrace < J->sizetrace; J->freetrace++)
+    if (traceref(J, J->freetrace) == NULL)
+      return J->freetrace++;
+  /* Need to grow trace array. */
+  lim = (MSize)J->param[JIT_P_maxtrace] + 1;
+  if (lim < 2) lim = 2; else if (lim > 65535) lim = 65535;
+  osz = J->sizetrace;
+  if (osz >= lim)
+    return 0;  /* Too many traces. */
+  lj_mem_growvec(J->L, J->trace, J->sizetrace, lim, GCRef);
+  for (; osz < J->sizetrace; osz++)
+    setgcrefnull(J->trace[osz]);
+  return J->freetrace;
+}
+
+#define TRACE_APPENDVEC(field, szfield, tp) \
+  T->field = (tp *)p; \
+  memcpy(p, J->cur.field, J->cur.szfield*sizeof(tp)); \
+  p += J->cur.szfield*sizeof(tp);
+
+#ifdef LUAJIT_USE_PERFTOOLS
+/*
+** Create symbol table of JIT-compiled code. For use with Linux perf tools.
+** Example usage:
+**   perf record -f -e cycles luajit test.lua
+**   perf report -s symbol
+**   rm perf.data /tmp/perf-*.map
+*/
+#include <stdio.h>
+#include <unistd.h>
+
+static void perftools_addtrace(GCtrace *T)
+{
+  static FILE *fp;
+  GCproto *pt = &gcref(T->startpt)->pt;
+  const BCIns *startpc = mref(T->startpc, const BCIns);
+  const char *name = proto_chunknamestr(pt);
+  BCLine lineno;
+  if (name[0] == '@' || name[0] == '=')
+    name++;
+  else
+    name = "(string)";
+  lua_assert(startpc >= proto_bc(pt) && startpc < proto_bc(pt) + pt->sizebc);
+  lineno = lj_debug_line(pt, proto_bcpos(pt, startpc));
+  if (!fp) {
+    char fname[40];
+    sprintf(fname, "/tmp/perf-%d.map", getpid());
+    if (!(fp = fopen(fname, "w"))) return;
+    setlinebuf(fp);
+  }
+  fprintf(fp, "%lx %x TRACE_%d::%s:%u\n",
+	  (long)T->mcode, T->szmcode, T->traceno, name, lineno);
+}
+#endif
+
+/* Save current trace by copying and compacting it. */
+static void trace_save(jit_State *J)
+{
+  size_t sztr = ((sizeof(GCtrace)+7)&~7);
+  size_t szins = (J->cur.nins-J->cur.nk)*sizeof(IRIns);
+  size_t sz = sztr + szins +
+	      J->cur.nsnap*sizeof(SnapShot) +
+	      J->cur.nsnapmap*sizeof(SnapEntry);
+  GCtrace *T = lj_mem_newt(J->L, (MSize)sz, GCtrace);
+  char *p = (char *)T + sztr;
+  memcpy(T, &J->cur, sizeof(GCtrace));
+  setgcrefr(T->nextgc, J2G(J)->gc.root);
+  setgcrefp(J2G(J)->gc.root, T);
+  newwhite(J2G(J), T);
+  T->gct = ~LJ_TTRACE;
+  T->ir = (IRIns *)p - J->cur.nk;
+  memcpy(p, J->cur.ir+J->cur.nk, szins);
+  p += szins;
+  TRACE_APPENDVEC(snap, nsnap, SnapShot)
+  TRACE_APPENDVEC(snapmap, nsnapmap, SnapEntry)
+  J->cur.traceno = 0;
+  setgcrefp(J->trace[T->traceno], T);
+  lj_gc_barriertrace(J2G(J), T->traceno);
+  lj_gdbjit_addtrace(J, T);
+#ifdef LUAJIT_USE_PERFTOOLS
+  perftools_addtrace(T);
+#endif
+}
+
+void LJ_FASTCALL lj_trace_free(global_State *g, GCtrace *T)
+{
+  jit_State *J = G2J(g);
+  if (T->traceno) {
+    lj_gdbjit_deltrace(J, T);
+    if (T->traceno < J->freetrace)
+      J->freetrace = T->traceno;
+    setgcrefnull(J->trace[T->traceno]);
+  }
+  lj_mem_free(g, T,
+    ((sizeof(GCtrace)+7)&~7) + (T->nins-T->nk)*sizeof(IRIns) +
+    T->nsnap*sizeof(SnapShot) + T->nsnapmap*sizeof(SnapEntry));
+}
+
+/* Re-enable compiling a prototype by unpatching any modified bytecode. */
+void lj_trace_reenableproto(GCproto *pt)
+{
+  if ((pt->flags & PROTO_ILOOP)) {
+    BCIns *bc = proto_bc(pt);
+    BCPos i, sizebc = pt->sizebc;;
+    pt->flags &= ~PROTO_ILOOP;
+    if (bc_op(bc[0]) == BC_IFUNCF)
+      setbc_op(&bc[0], BC_FUNCF);
+    for (i = 1; i < sizebc; i++) {
+      BCOp op = bc_op(bc[i]);
+      if (op == BC_IFORL || op == BC_IITERL || op == BC_ILOOP)
+	setbc_op(&bc[i], (int)op+(int)BC_LOOP-(int)BC_ILOOP);
+    }
+  }
+}
+
+/* Unpatch the bytecode modified by a root trace. */
+static void trace_unpatch(jit_State *J, GCtrace *T)
+{
+  BCOp op = bc_op(T->startins);
+  BCIns *pc = mref(T->startpc, BCIns);
+  UNUSED(J);
+  if (op == BC_JMP)
+    return;  /* No need to unpatch branches in parent traces (yet). */
+  switch (bc_op(*pc)) {
+  case BC_JFORL:
+    lua_assert(traceref(J, bc_d(*pc)) == T);
+    *pc = T->startins;
+    pc += bc_j(T->startins);
+    lua_assert(bc_op(*pc) == BC_JFORI);
+    setbc_op(pc, BC_FORI);
+    break;
+  case BC_JITERL:
+  case BC_JLOOP:
+    lua_assert(op == BC_ITERL || op == BC_LOOP || bc_isret(op));
+    *pc = T->startins;
+    break;
+  case BC_JMP:
+    lua_assert(op == BC_ITERL);
+    pc += bc_j(*pc)+2;
+    if (bc_op(*pc) == BC_JITERL) {
+      lua_assert(traceref(J, bc_d(*pc)) == T);
+      *pc = T->startins;
+    }
+    break;
+  case BC_JFUNCF:
+    lua_assert(op == BC_FUNCF);
+    *pc = T->startins;
+    break;
+  default:  /* Already unpatched. */
+    break;
+  }
+}
+
+/* Flush a root trace. */
+static void trace_flushroot(jit_State *J, GCtrace *T)
+{
+  GCproto *pt = &gcref(T->startpt)->pt;
+  lua_assert(T->root == 0 && pt != NULL);
+  /* First unpatch any modified bytecode. */
+  trace_unpatch(J, T);
+  /* Unlink root trace from chain anchored in prototype. */
+  if (pt->trace == T->traceno) {  /* Trace is first in chain. Easy. */
+    pt->trace = T->nextroot;
+  } else if (pt->trace) {  /* Otherwise search in chain of root traces. */
+    GCtrace *T2 = traceref(J, pt->trace);
+    if (T2) {
+      for (; T2->nextroot; T2 = traceref(J, T2->nextroot))
+	if (T2->nextroot == T->traceno) {
+	  T2->nextroot = T->nextroot;  /* Unlink from chain. */
+	  break;
+	}
+    }
+  }
+}
+
+/* Flush a trace. Only root traces are considered. */
+void lj_trace_flush(jit_State *J, TraceNo traceno)
+{
+  if (traceno > 0 && traceno < J->sizetrace) {
+    GCtrace *T = traceref(J, traceno);
+    if (T && T->root == 0)
+      trace_flushroot(J, T);
+  }
+}
+
+/* Flush all traces associated with a prototype. */
+void lj_trace_flushproto(global_State *g, GCproto *pt)
+{
+  while (pt->trace != 0)
+    trace_flushroot(G2J(g), traceref(G2J(g), pt->trace));
+}
+
+/* Flush all traces. */
+int lj_trace_flushall(lua_State *L)
+{
+  jit_State *J = L2J(L);
+  ptrdiff_t i;
+  if ((J2G(J)->hookmask & HOOK_GC))
+    return 1;
+  for (i = (ptrdiff_t)J->sizetrace-1; i > 0; i--) {
+    GCtrace *T = traceref(J, i);
+    if (T) {
+      if (T->root == 0)
+	trace_flushroot(J, T);
+      lj_gdbjit_deltrace(J, T);
+      T->traceno = 0;
+      setgcrefnull(J->trace[i]);
+    }
+  }
+  J->cur.traceno = 0;
+  J->freetrace = 0;
+  /* Clear penalty cache. */
+  memset(J->penalty, 0, sizeof(J->penalty));
+  /* Free the whole machine code and invalidate all exit stub groups. */
+  lj_mcode_free(J);
+  memset(J->exitstubgroup, 0, sizeof(J->exitstubgroup));
+  lj_vmevent_send(L, TRACE,
+    setstrV(L, L->top++, lj_str_newlit(L, "flush"));
+  );
+  return 0;
+}
+
+/* Initialize JIT compiler state. */
+void lj_trace_initstate(global_State *g)
+{
+  jit_State *J = G2J(g);
+  TValue *tv;
+  /* Initialize SIMD constants. */
+  tv = LJ_KSIMD(J, LJ_KSIMD_ABS);
+  tv[0].u64 = U64x(7fffffff,ffffffff);
+  tv[1].u64 = U64x(7fffffff,ffffffff);
+  tv = LJ_KSIMD(J, LJ_KSIMD_NEG);
+  tv[0].u64 = U64x(80000000,00000000);
+  tv[1].u64 = U64x(80000000,00000000);
+}
+
+/* Free everything associated with the JIT compiler state. */
+void lj_trace_freestate(global_State *g)
+{
+  jit_State *J = G2J(g);
+#ifdef LUA_USE_ASSERT
+  {  /* This assumes all traces have already been freed. */
+    ptrdiff_t i;
+    for (i = 1; i < (ptrdiff_t)J->sizetrace; i++)
+      lua_assert(i == (ptrdiff_t)J->cur.traceno || traceref(J, i) == NULL);
+  }
+#endif
+  lj_mcode_free(J);
+  lj_ir_k64_freeall(J);
+  lj_mem_freevec(g, J->snapmapbuf, J->sizesnapmap, SnapEntry);
+  lj_mem_freevec(g, J->snapbuf, J->sizesnap, SnapShot);
+  lj_mem_freevec(g, J->irbuf + J->irbotlim, J->irtoplim - J->irbotlim, IRIns);
+  lj_mem_freevec(g, J->trace, J->sizetrace, GCRef);
+}
+
+/* -- Penalties and blacklisting ------------------------------------------ */
+
+/* Blacklist a bytecode instruction. */
+static void blacklist_pc(GCproto *pt, BCIns *pc)
+{
+  setbc_op(pc, (int)bc_op(*pc)+(int)BC_ILOOP-(int)BC_LOOP);
+  pt->flags |= PROTO_ILOOP;
+}
+
+/* Penalize a bytecode instruction. */
+static void penalty_pc(jit_State *J, GCproto *pt, BCIns *pc, TraceError e)
+{
+  uint32_t i, val = PENALTY_MIN;
+  for (i = 0; i < PENALTY_SLOTS; i++)
+    if (mref(J->penalty[i].pc, const BCIns) == pc) {  /* Cache slot found? */
+      /* First try to bump its hotcount several times. */
+      val = ((uint32_t)J->penalty[i].val << 1) +
+	    LJ_PRNG_BITS(J, PENALTY_RNDBITS);
+      if (val > PENALTY_MAX) {
+	blacklist_pc(pt, pc);  /* Blacklist it, if that didn't help. */
+	return;
+      }
+      goto setpenalty;
+    }
+  /* Assign a new penalty cache slot. */
+  i = J->penaltyslot;
+  J->penaltyslot = (J->penaltyslot + 1) & (PENALTY_SLOTS-1);
+  setmref(J->penalty[i].pc, pc);
+setpenalty:
+  J->penalty[i].val = (uint16_t)val;
+  J->penalty[i].reason = e;
+  hotcount_set(J2GG(J), pc+1, val);
+}
+
+/* -- Trace compiler state machine ---------------------------------------- */
+
+/* Start tracing. */
+static void trace_start(jit_State *J)
+{
+  lua_State *L;
+  TraceNo traceno;
+
+  if ((J->pt->flags & PROTO_NOJIT)) {  /* JIT disabled for this proto? */
+    if (J->parent == 0) {
+      /* Lazy bytecode patching to disable hotcount events. */
+      lua_assert(bc_op(*J->pc) == BC_FORL || bc_op(*J->pc) == BC_ITERL ||
+		 bc_op(*J->pc) == BC_LOOP || bc_op(*J->pc) == BC_FUNCF);
+      setbc_op(J->pc, (int)bc_op(*J->pc)+(int)BC_ILOOP-(int)BC_LOOP);
+      J->pt->flags |= PROTO_ILOOP;
+    }
+    J->state = LJ_TRACE_IDLE;  /* Silently ignored. */
+    return;
+  }
+
+  /* Get a new trace number. */
+  traceno = trace_findfree(J);
+  if (LJ_UNLIKELY(traceno == 0)) {  /* No free trace? */
+    lua_assert((J2G(J)->hookmask & HOOK_GC) == 0);
+    lj_trace_flushall(J->L);
+    J->state = LJ_TRACE_IDLE;  /* Silently ignored. */
+    return;
+  }
+  setgcrefp(J->trace[traceno], &J->cur);
+
+  /* Setup enough of the current trace to be able to send the vmevent. */
+  memset(&J->cur, 0, sizeof(GCtrace));
+  J->cur.traceno = traceno;
+  J->cur.nins = J->cur.nk = REF_BASE;
+  J->cur.ir = J->irbuf;
+  J->cur.snap = J->snapbuf;
+  J->cur.snapmap = J->snapmapbuf;
+  J->mergesnap = 0;
+  J->needsnap = 0;
+  J->bcskip = 0;
+  J->guardemit.irt = 0;
+  J->postproc = LJ_POST_NONE;
+  lj_resetsplit(J);
+  setgcref(J->cur.startpt, obj2gco(J->pt));
+
+  L = J->L;
+  lj_vmevent_send(L, TRACE,
+    setstrV(L, L->top++, lj_str_newlit(L, "start"));
+    setintV(L->top++, traceno);
+    setfuncV(L, L->top++, J->fn);
+    setintV(L->top++, proto_bcpos(J->pt, J->pc));
+    if (J->parent) {
+      setintV(L->top++, J->parent);
+      setintV(L->top++, J->exitno);
+    }
+  );
+  lj_record_setup(J);
+}
+
+/* Stop tracing. */
+static void trace_stop(jit_State *J)
+{
+  BCIns *pc = mref(J->cur.startpc, BCIns);
+  BCOp op = bc_op(J->cur.startins);
+  GCproto *pt = &gcref(J->cur.startpt)->pt;
+  TraceNo traceno = J->cur.traceno;
+  lua_State *L;
+
+  switch (op) {
+  case BC_FORL:
+    setbc_op(pc+bc_j(J->cur.startins), BC_JFORI);  /* Patch FORI, too. */
+    /* fallthrough */
+  case BC_LOOP:
+  case BC_ITERL:
+  case BC_FUNCF:
+    /* Patch bytecode of starting instruction in root trace. */
+    setbc_op(pc, (int)op+(int)BC_JLOOP-(int)BC_LOOP);
+    setbc_d(pc, traceno);
+  addroot:
+    /* Add to root trace chain in prototype. */
+    J->cur.nextroot = pt->trace;
+    pt->trace = (TraceNo1)traceno;
+    break;
+  case BC_RET:
+  case BC_RET0:
+  case BC_RET1:
+    *pc = BCINS_AD(BC_JLOOP, J->cur.snap[0].nslots, traceno);
+    goto addroot;
+  case BC_JMP:
+    /* Patch exit branch in parent to side trace entry. */
+    lua_assert(J->parent != 0 && J->cur.root != 0);
+    lj_asm_patchexit(J, traceref(J, J->parent), J->exitno, J->cur.mcode);
+    /* Avoid compiling a side trace twice (stack resizing uses parent exit). */
+    traceref(J, J->parent)->snap[J->exitno].count = SNAPCOUNT_DONE;
+    /* Add to side trace chain in root trace. */
+    {
+      GCtrace *root = traceref(J, J->cur.root);
+      root->nchild++;
+      J->cur.nextside = root->nextside;
+      root->nextside = (TraceNo1)traceno;
+    }
+    break;
+  default:
+    lua_assert(0);
+    break;
+  }
+
+  /* Commit new mcode only after all patching is done. */
+  lj_mcode_commit(J, J->cur.mcode);
+  J->postproc = LJ_POST_NONE;
+  trace_save(J);
+
+  L = J->L;
+  lj_vmevent_send(L, TRACE,
+    setstrV(L, L->top++, lj_str_newlit(L, "stop"));
+    setintV(L->top++, traceno);
+  );
+}
+
+/* Start a new root trace for down-recursion. */
+static int trace_downrec(jit_State *J)
+{
+  /* Restart recording at the return instruction. */
+  lua_assert(J->pt != NULL);
+  lua_assert(bc_isret(bc_op(*J->pc)));
+  if (bc_op(*J->pc) == BC_RETM)
+    return 0;  /* NYI: down-recursion with RETM. */
+  J->parent = 0;
+  J->exitno = 0;
+  J->state = LJ_TRACE_RECORD;
+  trace_start(J);
+  return 1;
+}
+
+/* Abort tracing. */
+static int trace_abort(jit_State *J)
+{
+  lua_State *L = J->L;
+  TraceError e = LJ_TRERR_RECERR;
+  TraceNo traceno;
+
+  J->postproc = LJ_POST_NONE;
+  lj_mcode_abort(J);
+  if (tvisnumber(L->top-1))
+    e = (TraceError)numberVint(L->top-1);
+  if (e == LJ_TRERR_MCODELM) {
+    L->top--;  /* Remove error object */
+    J->state = LJ_TRACE_ASM;
+    return 1;  /* Retry ASM with new MCode area. */
+  }
+  /* Penalize or blacklist starting bytecode instruction. */
+  if (J->parent == 0 && !bc_isret(bc_op(J->cur.startins)))
+    penalty_pc(J, &gcref(J->cur.startpt)->pt, mref(J->cur.startpc, BCIns), e);
+
+  /* Is there anything to abort? */
+  traceno = J->cur.traceno;
+  if (traceno) {
+    ptrdiff_t errobj = savestack(L, L->top-1);  /* Stack may be resized. */
+    J->cur.link = 0;
+    J->cur.linktype = LJ_TRLINK_NONE;
+    lj_vmevent_send(L, TRACE,
+      TValue *frame;
+      const BCIns *pc;
+      GCfunc *fn;
+      setstrV(L, L->top++, lj_str_newlit(L, "abort"));
+      setintV(L->top++, traceno);
+      /* Find original Lua function call to generate a better error message. */
+      frame = J->L->base-1;
+      pc = J->pc;
+      while (!isluafunc(frame_func(frame))) {
+	pc = (frame_iscont(frame) ? frame_contpc(frame) : frame_pc(frame)) - 1;
+	frame = frame_prev(frame);
+      }
+      fn = frame_func(frame);
+      setfuncV(L, L->top++, fn);
+      setintV(L->top++, proto_bcpos(funcproto(fn), pc));
+      copyTV(L, L->top++, restorestack(L, errobj));
+      copyTV(L, L->top++, &J->errinfo);
+    );
+    /* Drop aborted trace after the vmevent (which may still access it). */
+    setgcrefnull(J->trace[traceno]);
+    if (traceno < J->freetrace)
+      J->freetrace = traceno;
+    J->cur.traceno = 0;
+  }
+  L->top--;  /* Remove error object */
+  if (e == LJ_TRERR_DOWNREC)
+    return trace_downrec(J);
+  else if (e == LJ_TRERR_MCODEAL)
+    lj_trace_flushall(L);
+  return 0;
+}
+
+/* Perform pending re-patch of a bytecode instruction. */
+static LJ_AINLINE void trace_pendpatch(jit_State *J, int force)
+{
+  if (LJ_UNLIKELY(J->patchpc)) {
+    if (force || J->bcskip == 0) {
+      *J->patchpc = J->patchins;
+      J->patchpc = NULL;
+    } else {
+      J->bcskip = 0;
+    }
+  }
+}
+
+/* State machine for the trace compiler. Protected callback. */
+static TValue *trace_state(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  UNUSED(dummy);
+  do {
+  retry:
+    switch (J->state) {
+    case LJ_TRACE_START:
+      J->state = LJ_TRACE_RECORD;  /* trace_start() may change state. */
+      trace_start(J);
+      lj_dispatch_update(J2G(J));
+      break;
+
+    case LJ_TRACE_RECORD:
+      trace_pendpatch(J, 0);
+      setvmstate(J2G(J), RECORD);
+      lj_vmevent_send_(L, RECORD,
+	/* Save/restore tmptv state for trace recorder. */
+	TValue savetv = J2G(J)->tmptv;
+	TValue savetv2 = J2G(J)->tmptv2;
+	setintV(L->top++, J->cur.traceno);
+	setfuncV(L, L->top++, J->fn);
+	setintV(L->top++, J->pt ? (int32_t)proto_bcpos(J->pt, J->pc) : -1);
+	setintV(L->top++, J->framedepth);
+      ,
+	J2G(J)->tmptv = savetv;
+	J2G(J)->tmptv2 = savetv2;
+      );
+      lj_record_ins(J);
+      break;
+
+    case LJ_TRACE_END:
+      trace_pendpatch(J, 1);
+      J->loopref = 0;
+      if ((J->flags & JIT_F_OPT_LOOP) &&
+	  J->cur.link == J->cur.traceno && J->framedepth + J->retdepth == 0) {
+	setvmstate(J2G(J), OPT);
+	lj_opt_dce(J);
+	if (lj_opt_loop(J)) {  /* Loop optimization failed? */
+	  J->cur.link = 0;
+	  J->cur.linktype = LJ_TRLINK_NONE;
+	  J->loopref = J->cur.nins;
+	  J->state = LJ_TRACE_RECORD;  /* Try to continue recording. */
+	  break;
+	}
+	J->loopref = J->chain[IR_LOOP];  /* Needed by assembler. */
+      }
+      lj_opt_split(J);
+      lj_opt_sink(J);
+      J->state = LJ_TRACE_ASM;
+      break;
+
+    case LJ_TRACE_ASM:
+      setvmstate(J2G(J), ASM);
+      lj_asm_trace(J, &J->cur);
+      trace_stop(J);
+      setvmstate(J2G(J), INTERP);
+      J->state = LJ_TRACE_IDLE;
+      lj_dispatch_update(J2G(J));
+      return NULL;
+
+    default:  /* Trace aborted asynchronously. */
+      setintV(L->top++, (int32_t)LJ_TRERR_RECERR);
+      /* fallthrough */
+    case LJ_TRACE_ERR:
+      trace_pendpatch(J, 1);
+      if (trace_abort(J))
+	goto retry;
+      setvmstate(J2G(J), INTERP);
+      J->state = LJ_TRACE_IDLE;
+      lj_dispatch_update(J2G(J));
+      return NULL;
+    }
+  } while (J->state > LJ_TRACE_RECORD);
+  return NULL;
+}
+
+/* -- Event handling ------------------------------------------------------ */
+
+/* A bytecode instruction is about to be executed. Record it. */
+void lj_trace_ins(jit_State *J, const BCIns *pc)
+{
+  /* Note: J->L must already be set. pc is the true bytecode PC here. */
+  J->pc = pc;
+  J->fn = curr_func(J->L);
+  J->pt = isluafunc(J->fn) ? funcproto(J->fn) : NULL;
+  while (lj_vm_cpcall(J->L, NULL, (void *)J, trace_state) != 0)
+    J->state = LJ_TRACE_ERR;
+}
+
+/* A hotcount triggered. Start recording a root trace. */
+void LJ_FASTCALL lj_trace_hot(jit_State *J, const BCIns *pc)
+{
+  /* Note: pc is the interpreter bytecode PC here. It's offset by 1. */
+  ERRNO_SAVE
+  /* Reset hotcount. */
+  hotcount_set(J2GG(J), pc, J->param[JIT_P_hotloop]*HOTCOUNT_LOOP);
+  /* Only start a new trace if not recording or inside __gc call or vmevent. */
+  if (J->state == LJ_TRACE_IDLE &&
+      !(J2G(J)->hookmask & (HOOK_GC|HOOK_VMEVENT))) {
+    J->parent = 0;  /* Root trace. */
+    J->exitno = 0;
+    J->state = LJ_TRACE_START;
+    lj_trace_ins(J, pc-1);
+  }
+  ERRNO_RESTORE
+}
+
+/* Check for a hot side exit. If yes, start recording a side trace. */
+static void trace_hotside(jit_State *J, const BCIns *pc)
+{
+  SnapShot *snap = &traceref(J, J->parent)->snap[J->exitno];
+  if (!(J2G(J)->hookmask & (HOOK_GC|HOOK_VMEVENT)) &&
+      snap->count != SNAPCOUNT_DONE &&
+      ++snap->count >= J->param[JIT_P_hotexit]) {
+    lua_assert(J->state == LJ_TRACE_IDLE);
+    /* J->parent is non-zero for a side trace. */
+    J->state = LJ_TRACE_START;
+    lj_trace_ins(J, pc);
+  }
+}
+
+/* Tiny struct to pass data to protected call. */
+typedef struct ExitDataCP {
+  jit_State *J;
+  void *exptr;		/* Pointer to exit state. */
+  const BCIns *pc;	/* Restart interpreter at this PC. */
+} ExitDataCP;
+
+/* Need to protect lj_snap_restore because it may throw. */
+static TValue *trace_exit_cp(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  ExitDataCP *exd = (ExitDataCP *)ud;
+  cframe_errfunc(L->cframe) = -1;  /* Inherit error function. */
+  exd->pc = lj_snap_restore(exd->J, exd->exptr);
+  UNUSED(dummy);
+  return NULL;
+}
+
+#ifndef LUAJIT_DISABLE_VMEVENT
+/* Push all registers from exit state. */
+static void trace_exit_regs(lua_State *L, ExitState *ex)
+{
+  int32_t i;
+  setintV(L->top++, RID_NUM_GPR);
+  setintV(L->top++, RID_NUM_FPR);
+  for (i = 0; i < RID_NUM_GPR; i++) {
+    if (sizeof(ex->gpr[i]) == sizeof(int32_t))
+      setintV(L->top++, (int32_t)ex->gpr[i]);
+    else
+      setnumV(L->top++, (lua_Number)ex->gpr[i]);
+  }
+#if !LJ_SOFTFP
+  for (i = 0; i < RID_NUM_FPR; i++) {
+    setnumV(L->top, ex->fpr[i]);
+    if (LJ_UNLIKELY(tvisnan(L->top)))
+      setnanV(L->top);
+    L->top++;
+  }
+#endif
+}
+#endif
+
+#ifdef EXITSTATE_PCREG
+/* Determine trace number from pc of exit instruction. */
+static TraceNo trace_exit_find(jit_State *J, MCode *pc)
+{
+  TraceNo traceno;
+  for (traceno = 1; traceno < J->sizetrace; traceno++) {
+    GCtrace *T = traceref(J, traceno);
+    if (T && pc >= T->mcode && pc < (MCode *)((char *)T->mcode + T->szmcode))
+      return traceno;
+  }
+  lua_assert(0);
+  return 0;
+}
+#endif
+
+/* A trace exited. Restore interpreter state. */
+int LJ_FASTCALL lj_trace_exit(jit_State *J, void *exptr)
+{
+  ERRNO_SAVE
+  lua_State *L = J->L;
+  ExitState *ex = (ExitState *)exptr;
+  ExitDataCP exd;
+  int errcode;
+  const BCIns *pc;
+  void *cf;
+  GCtrace *T;
+#ifdef EXITSTATE_PCREG
+  J->parent = trace_exit_find(J, (MCode *)(intptr_t)ex->gpr[EXITSTATE_PCREG]);
+#endif
+  T = traceref(J, J->parent); UNUSED(T);
+#ifdef EXITSTATE_CHECKEXIT
+  if (J->exitno == T->nsnap) {  /* Treat stack check like a parent exit. */
+    lua_assert(T->root != 0);
+    J->exitno = T->ir[REF_BASE].op2;
+    J->parent = T->ir[REF_BASE].op1;
+    T = traceref(J, J->parent);
+  }
+#endif
+  lua_assert(T != NULL && J->exitno < T->nsnap);
+  exd.J = J;
+  exd.exptr = exptr;
+  errcode = lj_vm_cpcall(L, NULL, &exd, trace_exit_cp);
+  if (errcode)
+    return -errcode;  /* Return negated error code. */
+
+  lj_vmevent_send(L, TEXIT,
+    lj_state_checkstack(L, 4+RID_NUM_GPR+RID_NUM_FPR+LUA_MINSTACK);
+    setintV(L->top++, J->parent);
+    setintV(L->top++, J->exitno);
+    trace_exit_regs(L, ex);
+  );
+
+  pc = exd.pc;
+  cf = cframe_raw(L->cframe);
+  setcframe_pc(cf, pc);
+  if (G(L)->gc.state == GCSatomic || G(L)->gc.state == GCSfinalize) {
+    if (!(G(L)->hookmask & HOOK_GC))
+      lj_gc_step(L);  /* Exited because of GC: drive GC forward. */
+  } else {
+    trace_hotside(J, pc);
+  }
+  if (bc_op(*pc) == BC_JLOOP) {
+    BCIns *retpc = &traceref(J, bc_d(*pc))->startins;
+    if (bc_isret(bc_op(*retpc))) {
+      if (J->state == LJ_TRACE_RECORD) {
+	J->patchins = *pc;
+	J->patchpc = (BCIns *)pc;
+	*J->patchpc = *retpc;
+	J->bcskip = 1;
+      } else {
+	pc = retpc;
+	setcframe_pc(cf, pc);
+      }
+    }
+  }
+  /* Return MULTRES or 0. */
+  ERRNO_RESTORE
+  switch (bc_op(*pc)) {
+  case BC_CALLM: case BC_CALLMT:
+    return (int)((BCReg)(L->top - L->base) - bc_a(*pc) - bc_c(*pc));
+  case BC_RETM:
+    return (int)((BCReg)(L->top - L->base) + 1 - bc_a(*pc) - bc_d(*pc));
+  case BC_TSETM:
+    return (int)((BCReg)(L->top - L->base) + 1 - bc_a(*pc));
+  default:
+    if (bc_op(*pc) >= BC_FUNCF)
+      return (int)((BCReg)(L->top - L->base) + 1);
+    return 0;
+  }
+}
+
+#endif
diff --git a/lib/luajit/src/lj_trace.h b/lib/luajit/src/lj_trace.h
new file mode 100644
index 00000000..f3109081
--- /dev/null
+++ b/lib/luajit/src/lj_trace.h
@@ -0,0 +1,53 @@
+/*
+** Trace management.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TRACE_H
+#define _LJ_TRACE_H
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+#include "lj_jit.h"
+#include "lj_dispatch.h"
+
+/* Trace errors. */
+typedef enum {
+#define TREDEF(name, msg)	LJ_TRERR_##name,
+#include "lj_traceerr.h"
+  LJ_TRERR__MAX
+} TraceError;
+
+LJ_FUNC_NORET void lj_trace_err(jit_State *J, TraceError e);
+LJ_FUNC_NORET void lj_trace_err_info(jit_State *J, TraceError e);
+
+/* Trace management. */
+LJ_FUNC void LJ_FASTCALL lj_trace_free(global_State *g, GCtrace *T);
+LJ_FUNC void lj_trace_reenableproto(GCproto *pt);
+LJ_FUNC void lj_trace_flushproto(global_State *g, GCproto *pt);
+LJ_FUNC void lj_trace_flush(jit_State *J, TraceNo traceno);
+LJ_FUNC int lj_trace_flushall(lua_State *L);
+LJ_FUNC void lj_trace_initstate(global_State *g);
+LJ_FUNC void lj_trace_freestate(global_State *g);
+
+/* Event handling. */
+LJ_FUNC void lj_trace_ins(jit_State *J, const BCIns *pc);
+LJ_FUNCA void LJ_FASTCALL lj_trace_hot(jit_State *J, const BCIns *pc);
+LJ_FUNCA int LJ_FASTCALL lj_trace_exit(jit_State *J, void *exptr);
+
+/* Signal asynchronous abort of trace or end of trace. */
+#define lj_trace_abort(g)	(G2J(g)->state &= ~LJ_TRACE_ACTIVE)
+#define lj_trace_end(J)		(J->state = LJ_TRACE_END)
+
+#else
+
+#define lj_trace_flushall(L)	(UNUSED(L), 0)
+#define lj_trace_initstate(g)	UNUSED(g)
+#define lj_trace_freestate(g)	UNUSED(g)
+#define lj_trace_abort(g)	UNUSED(g)
+#define lj_trace_end(J)		UNUSED(J)
+
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_traceerr.h b/lib/luajit/src/lj_traceerr.h
new file mode 100644
index 00000000..521560a1
--- /dev/null
+++ b/lib/luajit/src/lj_traceerr.h
@@ -0,0 +1,61 @@
+/*
+** Trace compiler error messages.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* This file may be included multiple times with different TREDEF macros. */
+
+/* Recording. */
+TREDEF(RECERR,	"error thrown or hook called during recording")
+TREDEF(TRACEOV,	"trace too long")
+TREDEF(STACKOV,	"trace too deep")
+TREDEF(SNAPOV,	"too many snapshots")
+TREDEF(BLACKL,	"blacklisted")
+TREDEF(NYIBC,	"NYI: bytecode %d")
+
+/* Recording loop ops. */
+TREDEF(LLEAVE,	"leaving loop in root trace")
+TREDEF(LINNER,	"inner loop in root trace")
+TREDEF(LUNROLL,	"loop unroll limit reached")
+
+/* Recording calls/returns. */
+TREDEF(BADTYPE,	"bad argument type")
+TREDEF(CJITOFF,	"JIT compilation disabled for function")
+TREDEF(CUNROLL,	"call unroll limit reached")
+TREDEF(DOWNREC,	"down-recursion, restarting")
+TREDEF(NYICF,	"NYI: C function %p")
+TREDEF(NYIFF,	"NYI: FastFunc %s")
+TREDEF(NYIFFU,	"NYI: unsupported variant of FastFunc %s")
+TREDEF(NYIRETL,	"NYI: return to lower frame")
+
+/* Recording indexed load/store. */
+TREDEF(STORENN,	"store with nil or NaN key")
+TREDEF(NOMM,	"missing metamethod")
+TREDEF(IDXLOOP,	"looping index lookup")
+TREDEF(NYITMIX,	"NYI: mixed sparse/dense table")
+
+/* Recording C data operations. */
+TREDEF(NOCACHE,	"symbol not in cache")
+TREDEF(NYICONV,	"NYI: unsupported C type conversion")
+TREDEF(NYICALL,	"NYI: unsupported C function type")
+
+/* Optimizations. */
+TREDEF(GFAIL,	"guard would always fail")
+TREDEF(PHIOV,	"too many PHIs")
+TREDEF(TYPEINS,	"persistent type instability")
+
+/* Assembler. */
+TREDEF(MCODEAL,	"failed to allocate mcode memory")
+TREDEF(MCODEOV,	"machine code too long")
+TREDEF(MCODELM,	"hit mcode limit (retrying)")
+TREDEF(SPILLOV,	"too many spill slots")
+TREDEF(BADRA,	"inconsistent register allocation")
+TREDEF(NYIIR,	"NYI: cannot assemble IR instruction %d")
+TREDEF(NYIPHI,	"NYI: PHI shuffling too complex")
+TREDEF(NYICOAL,	"NYI: register coalescing too complex")
+
+#undef TREDEF
+
+/* Detecting unused error messages:
+   awk -F, '/^TREDEF/ { gsub(/TREDEF./, ""); printf "grep -q LJ_TRERR_%s *.[ch] || echo %s\n", $1, $1}' lj_traceerr.h | sh
+*/
diff --git a/lib/luajit/src/lj_udata.c b/lib/luajit/src/lj_udata.c
new file mode 100644
index 00000000..6cd357ec
--- /dev/null
+++ b/lib/luajit/src/lj_udata.c
@@ -0,0 +1,34 @@
+/*
+** Userdata handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_udata_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_udata.h"
+
+GCudata *lj_udata_new(lua_State *L, MSize sz, GCtab *env)
+{
+  GCudata *ud = lj_mem_newt(L, sizeof(GCudata) + sz, GCudata);
+  global_State *g = G(L);
+  newwhite(g, ud);  /* Not finalized. */
+  ud->gct = ~LJ_TUDATA;
+  ud->udtype = UDTYPE_USERDATA;
+  ud->len = sz;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcrefnull(ud->metatable);
+  setgcref(ud->env, obj2gco(env));
+  /* Chain to userdata list (after main thread). */
+  setgcrefr(ud->nextgc, mainthread(g)->nextgc);
+  setgcref(mainthread(g)->nextgc, obj2gco(ud));
+  return ud;
+}
+
+void LJ_FASTCALL lj_udata_free(global_State *g, GCudata *ud)
+{
+  lj_mem_free(g, ud, sizeudata(ud));
+}
+
diff --git a/lib/luajit/src/lj_udata.h b/lib/luajit/src/lj_udata.h
new file mode 100644
index 00000000..e03d9a3a
--- /dev/null
+++ b/lib/luajit/src/lj_udata.h
@@ -0,0 +1,14 @@
+/*
+** Userdata handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_UDATA_H
+#define _LJ_UDATA_H
+
+#include "lj_obj.h"
+
+LJ_FUNC GCudata *lj_udata_new(lua_State *L, MSize sz, GCtab *env);
+LJ_FUNC void LJ_FASTCALL lj_udata_free(global_State *g, GCudata *ud);
+
+#endif
diff --git a/lib/luajit/src/lj_vm.h b/lib/luajit/src/lj_vm.h
new file mode 100644
index 00000000..4a8f03f0
--- /dev/null
+++ b/lib/luajit/src/lj_vm.h
@@ -0,0 +1,116 @@
+/*
+** Assembler VM interface definitions.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_VM_H
+#define _LJ_VM_H
+
+#include "lj_obj.h"
+
+/* Entry points for ASM parts of VM. */
+LJ_ASMF void lj_vm_call(lua_State *L, TValue *base, int nres1);
+LJ_ASMF int lj_vm_pcall(lua_State *L, TValue *base, int nres1, ptrdiff_t ef);
+typedef TValue *(*lua_CPFunction)(lua_State *L, lua_CFunction func, void *ud);
+LJ_ASMF int lj_vm_cpcall(lua_State *L, lua_CFunction func, void *ud,
+			 lua_CPFunction cp);
+LJ_ASMF int lj_vm_resume(lua_State *L, TValue *base, int nres1, ptrdiff_t ef);
+LJ_ASMF_NORET void LJ_FASTCALL lj_vm_unwind_c(void *cframe, int errcode);
+LJ_ASMF_NORET void LJ_FASTCALL lj_vm_unwind_ff(void *cframe);
+LJ_ASMF void lj_vm_unwind_c_eh(void);
+LJ_ASMF void lj_vm_unwind_ff_eh(void);
+#if LJ_TARGET_X86ORX64
+LJ_ASMF void lj_vm_unwind_rethrow(void);
+#endif
+
+/* Miscellaneous functions. */
+#if LJ_TARGET_X86ORX64
+LJ_ASMF int lj_vm_cpuid(uint32_t f, uint32_t res[4]);
+#endif
+#if LJ_TARGET_PPC
+void lj_vm_cachesync(void *start, void *end);
+#endif
+LJ_ASMF double lj_vm_foldarith(double x, double y, int op);
+#if LJ_HASJIT
+LJ_ASMF double lj_vm_foldfpm(double x, int op);
+#endif
+#if !LJ_ARCH_HASFPU
+/* Declared in lj_obj.h: LJ_ASMF int32_t lj_vm_tobit(double x); */
+#endif
+
+/* Dispatch targets for recording and hooks. */
+LJ_ASMF void lj_vm_record(void);
+LJ_ASMF void lj_vm_inshook(void);
+LJ_ASMF void lj_vm_rethook(void);
+LJ_ASMF void lj_vm_callhook(void);
+
+/* Trace exit handling. */
+LJ_ASMF void lj_vm_exit_handler(void);
+LJ_ASMF void lj_vm_exit_interp(void);
+
+/* Internal math helper functions. */
+#if LJ_TARGET_X86ORX64 || LJ_TARGET_PPC
+#define lj_vm_floor	floor
+#define lj_vm_ceil	ceil
+#else
+LJ_ASMF double lj_vm_floor(double);
+LJ_ASMF double lj_vm_ceil(double);
+#if LJ_TARGET_ARM
+LJ_ASMF double lj_vm_floor_sf(double);
+LJ_ASMF double lj_vm_ceil_sf(double);
+#endif
+#endif
+#if defined(LUAJIT_NO_LOG2) || LJ_TARGET_X86ORX64
+LJ_ASMF double lj_vm_log2(double);
+#else
+#define lj_vm_log2	log2
+#endif
+
+#if LJ_HASJIT
+#if LJ_TARGET_X86ORX64
+LJ_ASMF void lj_vm_floor_sse(void);
+LJ_ASMF void lj_vm_ceil_sse(void);
+LJ_ASMF void lj_vm_trunc_sse(void);
+LJ_ASMF void lj_vm_exp_x87(void);
+LJ_ASMF void lj_vm_exp2_x87(void);
+LJ_ASMF void lj_vm_pow_sse(void);
+LJ_ASMF void lj_vm_powi_sse(void);
+#else
+#if LJ_TARGET_PPC
+#define lj_vm_trunc	trunc
+#else
+LJ_ASMF double lj_vm_trunc(double);
+#if LJ_TARGET_ARM
+LJ_ASMF double lj_vm_trunc_sf(double);
+#endif
+#endif
+LJ_ASMF double lj_vm_powi(double, int32_t);
+#ifdef LUAJIT_NO_EXP2
+LJ_ASMF double lj_vm_exp2(double);
+#else
+#define lj_vm_exp2	exp2
+#endif
+#endif
+LJ_ASMF int32_t LJ_FASTCALL lj_vm_modi(int32_t, int32_t);
+#if LJ_HASFFI
+LJ_ASMF int lj_vm_errno(void);
+#endif
+#endif
+
+/* Continuations for metamethods. */
+LJ_ASMF void lj_cont_cat(void);  /* Continue with concatenation. */
+LJ_ASMF void lj_cont_ra(void);  /* Store result in RA from instruction. */
+LJ_ASMF void lj_cont_nop(void);  /* Do nothing, just continue execution. */
+LJ_ASMF void lj_cont_condt(void);  /* Branch if result is true. */
+LJ_ASMF void lj_cont_condf(void);  /* Branch if result is false. */
+LJ_ASMF void lj_cont_hook(void);  /* Continue from hook yield. */
+
+enum { LJ_CONT_TAILCALL, LJ_CONT_FFI_CALLBACK };  /* Special continuations. */
+
+/* Start of the ASM code. */
+LJ_ASMF char lj_vm_asm_begin[];
+
+/* Bytecode offsets are relative to lj_vm_asm_begin. */
+#define makeasmfunc(ofs)	((ASMFunction)(lj_vm_asm_begin + (ofs)))
+
+#endif
diff --git a/lib/luajit/src/lj_vmevent.c b/lib/luajit/src/lj_vmevent.c
new file mode 100644
index 00000000..e14ad5b6
--- /dev/null
+++ b/lib/luajit/src/lj_vmevent.c
@@ -0,0 +1,57 @@
+/*
+** VM event handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <stdio.h>
+
+#define lj_vmevent_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+
+ptrdiff_t lj_vmevent_prepare(lua_State *L, VMEvent ev)
+{
+  global_State *g = G(L);
+  GCstr *s = lj_str_newlit(L, LJ_VMEVENTS_REGKEY);
+  cTValue *tv = lj_tab_getstr(tabV(registry(L)), s);
+  if (tvistab(tv)) {
+    int hash = VMEVENT_HASH(ev);
+    tv = lj_tab_getint(tabV(tv), hash);
+    if (tv && tvisfunc(tv)) {
+      lj_state_checkstack(L, LUA_MINSTACK);
+      setfuncV(L, L->top++, funcV(tv));
+      return savestack(L, L->top);
+    }
+  }
+  g->vmevmask &= ~VMEVENT_MASK(ev);  /* No handler: cache this fact. */
+  return 0;
+}
+
+void lj_vmevent_call(lua_State *L, ptrdiff_t argbase)
+{
+  global_State *g = G(L);
+  uint8_t oldmask = g->vmevmask;
+  uint8_t oldh = hook_save(g);
+  int status;
+  g->vmevmask = 0;  /* Disable all events. */
+  hook_vmevent(g);
+  status = lj_vm_pcall(L, restorestack(L, argbase), 0+1, 0);
+  if (LJ_UNLIKELY(status)) {
+    /* Really shouldn't use stderr here, but where else to complain? */
+    L->top--;
+    fputs("VM handler failed: ", stderr);
+    fputs(tvisstr(L->top) ? strVdata(L->top) : "?", stderr);
+    fputc('\n', stderr);
+  }
+  hook_restore(g, oldh);
+  if (g->vmevmask != VMEVENT_NOCACHE)
+    g->vmevmask = oldmask;  /* Restore event mask, but not if not modified. */
+}
+
diff --git a/lib/luajit/src/lj_vmevent.h b/lib/luajit/src/lj_vmevent.h
new file mode 100644
index 00000000..51bae015
--- /dev/null
+++ b/lib/luajit/src/lj_vmevent.h
@@ -0,0 +1,59 @@
+/*
+** VM event handling.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_VMEVENT_H
+#define _LJ_VMEVENT_H
+
+#include "lj_obj.h"
+
+/* Registry key for VM event handler table. */
+#define LJ_VMEVENTS_REGKEY	"_VMEVENTS"
+#define LJ_VMEVENTS_HSIZE	4
+
+#define VMEVENT_MASK(ev)	((uint8_t)1 << ((int)(ev) & 7))
+#define VMEVENT_HASH(ev)	((int)(ev) & ~7)
+#define VMEVENT_HASHIDX(h)	((int)(h) << 3)
+#define VMEVENT_NOCACHE		255
+
+#define VMEVENT_DEF(name, hash) \
+  LJ_VMEVENT_##name##_, \
+  LJ_VMEVENT_##name = ((LJ_VMEVENT_##name##_) & 7)|((hash) << 3)
+
+/* VM event IDs. */
+typedef enum {
+  VMEVENT_DEF(BC,	0x00003883),
+  VMEVENT_DEF(TRACE,	0xb2d91467),
+  VMEVENT_DEF(RECORD,	0x9284bf4f),
+  VMEVENT_DEF(TEXIT,	0xb29df2b0),
+  LJ_VMEVENT__MAX
+} VMEvent;
+
+#ifdef LUAJIT_DISABLE_VMEVENT
+#define lj_vmevent_send(L, ev, args)		UNUSED(L)
+#define lj_vmevent_send_(L, ev, args, post)	UNUSED(L)
+#else
+#define lj_vmevent_send(L, ev, args) \
+  if (G(L)->vmevmask & VMEVENT_MASK(LJ_VMEVENT_##ev)) { \
+    ptrdiff_t argbase = lj_vmevent_prepare(L, LJ_VMEVENT_##ev); \
+    if (argbase) { \
+      args \
+      lj_vmevent_call(L, argbase); \
+    } \
+  }
+#define lj_vmevent_send_(L, ev, args, post) \
+  if (G(L)->vmevmask & VMEVENT_MASK(LJ_VMEVENT_##ev)) { \
+    ptrdiff_t argbase = lj_vmevent_prepare(L, LJ_VMEVENT_##ev); \
+    if (argbase) { \
+      args \
+      lj_vmevent_call(L, argbase); \
+      post \
+    } \
+  }
+
+LJ_FUNC ptrdiff_t lj_vmevent_prepare(lua_State *L, VMEvent ev);
+LJ_FUNC void lj_vmevent_call(lua_State *L, ptrdiff_t argbase);
+#endif
+
+#endif
diff --git a/lib/luajit/src/lj_vmmath.c b/lib/luajit/src/lj_vmmath.c
new file mode 100644
index 00000000..63886aa7
--- /dev/null
+++ b/lib/luajit/src/lj_vmmath.c
@@ -0,0 +1,140 @@
+/*
+** Math helper functions for assembler VM.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_vmmath_c
+#define LUA_CORE
+
+#include <errno.h>
+#include <math.h>
+
+#include "lj_obj.h"
+#include "lj_ir.h"
+#include "lj_vm.h"
+
+/* -- Helper functions for generated machine code ------------------------- */
+
+#if LJ_TARGET_X86ORX64
+/* Wrapper functions to avoid linker issues on OSX. */
+LJ_FUNCA double lj_vm_sinh(double x) { return sinh(x); }
+LJ_FUNCA double lj_vm_cosh(double x) { return cosh(x); }
+LJ_FUNCA double lj_vm_tanh(double x) { return tanh(x); }
+#endif
+
+#if !LJ_TARGET_X86ORX64
+double lj_vm_foldarith(double x, double y, int op)
+{
+  switch (op) {
+  case IR_ADD - IR_ADD: return x+y; break;
+  case IR_SUB - IR_ADD: return x-y; break;
+  case IR_MUL - IR_ADD: return x*y; break;
+  case IR_DIV - IR_ADD: return x/y; break;
+  case IR_MOD - IR_ADD: return x-lj_vm_floor(x/y)*y; break;
+  case IR_POW - IR_ADD: return pow(x, y); break;
+  case IR_NEG - IR_ADD: return -x; break;
+  case IR_ABS - IR_ADD: return fabs(x); break;
+#if LJ_HASJIT
+  case IR_ATAN2 - IR_ADD: return atan2(x, y); break;
+  case IR_LDEXP - IR_ADD: return ldexp(x, (int)y); break;
+  case IR_MIN - IR_ADD: return x > y ? y : x; break;
+  case IR_MAX - IR_ADD: return x < y ? y : x; break;
+#endif
+  default: return x;
+  }
+}
+#endif
+
+#if LJ_HASJIT
+
+#ifdef LUAJIT_NO_LOG2
+double lj_vm_log2(double a)
+{
+  return log(a) * 1.4426950408889634074;
+}
+#endif
+
+#ifdef LUAJIT_NO_EXP2
+double lj_vm_exp2(double a)
+{
+  return exp(a * 0.6931471805599453);
+}
+#endif
+
+#if !(LJ_TARGET_ARM || LJ_TARGET_PPC)
+int32_t LJ_FASTCALL lj_vm_modi(int32_t a, int32_t b)
+{
+  uint32_t y, ua, ub;
+  lua_assert(b != 0);  /* This must be checked before using this function. */
+  ua = a < 0 ? (uint32_t)-a : (uint32_t)a;
+  ub = b < 0 ? (uint32_t)-b : (uint32_t)b;
+  y = ua % ub;
+  if (y != 0 && (a^b) < 0) y = y - ub;
+  if (((int32_t)y^b) < 0) y = (uint32_t)-(int32_t)y;
+  return (int32_t)y;
+}
+#endif
+
+#if !LJ_TARGET_X86ORX64
+/* Unsigned x^k. */
+static double lj_vm_powui(double x, uint32_t k)
+{
+  double y;
+  lua_assert(k != 0);
+  for (; (k & 1) == 0; k >>= 1) x *= x;
+  y = x;
+  if ((k >>= 1) != 0) {
+    for (;;) {
+      x *= x;
+      if (k == 1) break;
+      if (k & 1) y *= x;
+      k >>= 1;
+    }
+    y *= x;
+  }
+  return y;
+}
+
+/* Signed x^k. */
+double lj_vm_powi(double x, int32_t k)
+{
+  if (k > 1)
+    return lj_vm_powui(x, (uint32_t)k);
+  else if (k == 1)
+    return x;
+  else if (k == 0)
+    return 1.0;
+  else
+    return 1.0 / lj_vm_powui(x, (uint32_t)-k);
+}
+
+/* Computes fpm(x) for extended math functions. */
+double lj_vm_foldfpm(double x, int fpm)
+{
+  switch (fpm) {
+  case IRFPM_FLOOR: return lj_vm_floor(x);
+  case IRFPM_CEIL: return lj_vm_ceil(x);
+  case IRFPM_TRUNC: return lj_vm_trunc(x);
+  case IRFPM_SQRT: return sqrt(x);
+  case IRFPM_EXP: return exp(x);
+  case IRFPM_EXP2: return lj_vm_exp2(x);
+  case IRFPM_LOG: return log(x);
+  case IRFPM_LOG2: return lj_vm_log2(x);
+  case IRFPM_LOG10: return log10(x);
+  case IRFPM_SIN: return sin(x);
+  case IRFPM_COS: return cos(x);
+  case IRFPM_TAN: return tan(x);
+  default: lua_assert(0);
+  }
+  return 0;
+}
+#endif
+
+#if LJ_HASFFI
+int lj_vm_errno(void)
+{
+  return errno;
+}
+#endif
+
+#endif
diff --git a/lib/luajit/src/ljamalg.c b/lib/luajit/src/ljamalg.c
new file mode 100644
index 00000000..52a86153
--- /dev/null
+++ b/lib/luajit/src/ljamalg.c
@@ -0,0 +1,93 @@
+/*
+** LuaJIT core and libraries amalgamation.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/*
++--------------------------------------------------------------------------+
+| WARNING: Compiling the amalgamation needs a lot of virtual memory        |
+| (around 300 MB with GCC 4.x)! If you don't have enough physical memory   |
+| your machine will start swapping to disk and the compile will not finish |
+| within a reasonable amount of time.                                      |
+| So either compile on a bigger machine or use the non-amalgamated build.  |
++--------------------------------------------------------------------------+
+*/
+
+#define ljamalg_c
+#define LUA_CORE
+
+/* To get the mremap prototype. Must be defined before any system includes. */
+#if defined(__linux__) && !defined(_GNU_SOURCE)
+#define _GNU_SOURCE
+#endif
+
+#ifndef WINVER
+#define WINVER 0x0501
+#endif
+
+#include "lua.h"
+#include "lauxlib.h"
+
+#include "lj_gc.c"
+#include "lj_err.c"
+#include "lj_char.c"
+#include "lj_bc.c"
+#include "lj_obj.c"
+#include "lj_str.c"
+#include "lj_tab.c"
+#include "lj_func.c"
+#include "lj_udata.c"
+#include "lj_meta.c"
+#include "lj_debug.c"
+#include "lj_state.c"
+#include "lj_dispatch.c"
+#include "lj_vmevent.c"
+#include "lj_vmmath.c"
+#include "lj_strscan.c"
+#include "lj_api.c"
+#include "lj_lex.c"
+#include "lj_parse.c"
+#include "lj_bcread.c"
+#include "lj_bcwrite.c"
+#include "lj_load.c"
+#include "lj_ctype.c"
+#include "lj_cdata.c"
+#include "lj_cconv.c"
+#include "lj_ccall.c"
+#include "lj_ccallback.c"
+#include "lj_carith.c"
+#include "lj_clib.c"
+#include "lj_cparse.c"
+#include "lj_lib.c"
+#include "lj_ir.c"
+#include "lj_opt_mem.c"
+#include "lj_opt_fold.c"
+#include "lj_opt_narrow.c"
+#include "lj_opt_dce.c"
+#include "lj_opt_loop.c"
+#include "lj_opt_split.c"
+#include "lj_opt_sink.c"
+#include "lj_mcode.c"
+#include "lj_snap.c"
+#include "lj_record.c"
+#include "lj_crecord.c"
+#include "lj_ffrecord.c"
+#include "lj_asm.c"
+#include "lj_trace.c"
+#include "lj_gdbjit.c"
+#include "lj_alloc.c"
+
+#include "lib_aux.c"
+#include "lib_base.c"
+#include "lib_math.c"
+#include "lib_string.c"
+#include "lib_table.c"
+#include "lib_io.c"
+#include "lib_os.c"
+#include "lib_package.c"
+#include "lib_debug.c"
+#include "lib_bit.c"
+#include "lib_jit.c"
+#include "lib_ffi.c"
+#include "lib_init.c"
+
diff --git a/lib/luajit/src/lua.h b/lib/luajit/src/lua.h
new file mode 100644
index 00000000..c83fd3bb
--- /dev/null
+++ b/lib/luajit/src/lua.h
@@ -0,0 +1,393 @@
+/*
+** $Id: lua.h,v 1.218.1.5 2008/08/06 13:30:12 roberto Exp $
+** Lua - An Extensible Extension Language
+** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
+** See Copyright Notice at the end of this file
+*/
+
+
+#ifndef lua_h
+#define lua_h
+
+#include <stdarg.h>
+#include <stddef.h>
+
+
+#include "luaconf.h"
+
+
+#define LUA_VERSION	"Lua 5.1"
+#define LUA_RELEASE	"Lua 5.1.4"
+#define LUA_VERSION_NUM	501
+#define LUA_COPYRIGHT	"Copyright (C) 1994-2008 Lua.org, PUC-Rio"
+#define LUA_AUTHORS	"R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
+
+
+/* mark for precompiled code (`<esc>Lua') */
+#define	LUA_SIGNATURE	"\033Lua"
+
+/* option for multiple returns in `lua_pcall' and `lua_call' */
+#define LUA_MULTRET	(-1)
+
+
+/*
+** pseudo-indices
+*/
+#define LUA_REGISTRYINDEX	(-10000)
+#define LUA_ENVIRONINDEX	(-10001)
+#define LUA_GLOBALSINDEX	(-10002)
+#define lua_upvalueindex(i)	(LUA_GLOBALSINDEX-(i))
+
+
+/* thread status; 0 is OK */
+#define LUA_YIELD	1
+#define LUA_ERRRUN	2
+#define LUA_ERRSYNTAX	3
+#define LUA_ERRMEM	4
+#define LUA_ERRERR	5
+
+
+typedef struct lua_State lua_State;
+
+typedef int (*lua_CFunction) (lua_State *L);
+
+
+/*
+** functions that read/write blocks when loading/dumping Lua chunks
+*/
+typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
+
+typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud);
+
+
+/*
+** prototype for memory-allocation functions
+*/
+typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
+
+
+/*
+** basic types
+*/
+#define LUA_TNONE		(-1)
+
+#define LUA_TNIL		0
+#define LUA_TBOOLEAN		1
+#define LUA_TLIGHTUSERDATA	2
+#define LUA_TNUMBER		3
+#define LUA_TSTRING		4
+#define LUA_TTABLE		5
+#define LUA_TFUNCTION		6
+#define LUA_TUSERDATA		7
+#define LUA_TTHREAD		8
+
+
+
+/* minimum Lua stack available to a C function */
+#define LUA_MINSTACK	20
+
+
+/*
+** generic extra include file
+*/
+#if defined(LUA_USER_H)
+#include LUA_USER_H
+#endif
+
+
+/* type of numbers in Lua */
+typedef LUA_NUMBER lua_Number;
+
+
+/* type for integer functions */
+typedef LUA_INTEGER lua_Integer;
+
+
+
+/*
+** state manipulation
+*/
+LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
+LUA_API void       (lua_close) (lua_State *L);
+LUA_API lua_State *(lua_newthread) (lua_State *L);
+
+LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
+
+
+/*
+** basic stack manipulation
+*/
+LUA_API int   (lua_gettop) (lua_State *L);
+LUA_API void  (lua_settop) (lua_State *L, int idx);
+LUA_API void  (lua_pushvalue) (lua_State *L, int idx);
+LUA_API void  (lua_remove) (lua_State *L, int idx);
+LUA_API void  (lua_insert) (lua_State *L, int idx);
+LUA_API void  (lua_replace) (lua_State *L, int idx);
+LUA_API int   (lua_checkstack) (lua_State *L, int sz);
+
+LUA_API void  (lua_xmove) (lua_State *from, lua_State *to, int n);
+
+
+/*
+** access functions (stack -> C)
+*/
+
+LUA_API int             (lua_isnumber) (lua_State *L, int idx);
+LUA_API int             (lua_isstring) (lua_State *L, int idx);
+LUA_API int             (lua_iscfunction) (lua_State *L, int idx);
+LUA_API int             (lua_isuserdata) (lua_State *L, int idx);
+LUA_API int             (lua_type) (lua_State *L, int idx);
+LUA_API const char     *(lua_typename) (lua_State *L, int tp);
+
+LUA_API int            (lua_equal) (lua_State *L, int idx1, int idx2);
+LUA_API int            (lua_rawequal) (lua_State *L, int idx1, int idx2);
+LUA_API int            (lua_lessthan) (lua_State *L, int idx1, int idx2);
+
+LUA_API lua_Number      (lua_tonumber) (lua_State *L, int idx);
+LUA_API lua_Integer     (lua_tointeger) (lua_State *L, int idx);
+LUA_API int             (lua_toboolean) (lua_State *L, int idx);
+LUA_API const char     *(lua_tolstring) (lua_State *L, int idx, size_t *len);
+LUA_API size_t          (lua_objlen) (lua_State *L, int idx);
+LUA_API lua_CFunction   (lua_tocfunction) (lua_State *L, int idx);
+LUA_API void	       *(lua_touserdata) (lua_State *L, int idx);
+LUA_API lua_State      *(lua_tothread) (lua_State *L, int idx);
+LUA_API const void     *(lua_topointer) (lua_State *L, int idx);
+
+
+/*
+** push functions (C -> stack)
+*/
+LUA_API void  (lua_pushnil) (lua_State *L);
+LUA_API void  (lua_pushnumber) (lua_State *L, lua_Number n);
+LUA_API void  (lua_pushinteger) (lua_State *L, lua_Integer n);
+LUA_API void  (lua_pushlstring) (lua_State *L, const char *s, size_t l);
+LUA_API void  (lua_pushstring) (lua_State *L, const char *s);
+LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
+                                                      va_list argp);
+LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
+LUA_API void  (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
+LUA_API void  (lua_pushboolean) (lua_State *L, int b);
+LUA_API void  (lua_pushlightuserdata) (lua_State *L, void *p);
+LUA_API int   (lua_pushthread) (lua_State *L);
+
+
+/*
+** get functions (Lua -> stack)
+*/
+LUA_API void  (lua_gettable) (lua_State *L, int idx);
+LUA_API void  (lua_getfield) (lua_State *L, int idx, const char *k);
+LUA_API void  (lua_rawget) (lua_State *L, int idx);
+LUA_API void  (lua_rawgeti) (lua_State *L, int idx, int n);
+LUA_API void  (lua_createtable) (lua_State *L, int narr, int nrec);
+LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
+LUA_API int   (lua_getmetatable) (lua_State *L, int objindex);
+LUA_API void  (lua_getfenv) (lua_State *L, int idx);
+
+
+/*
+** set functions (stack -> Lua)
+*/
+LUA_API void  (lua_settable) (lua_State *L, int idx);
+LUA_API void  (lua_setfield) (lua_State *L, int idx, const char *k);
+LUA_API void  (lua_rawset) (lua_State *L, int idx);
+LUA_API void  (lua_rawseti) (lua_State *L, int idx, int n);
+LUA_API int   (lua_setmetatable) (lua_State *L, int objindex);
+LUA_API int   (lua_setfenv) (lua_State *L, int idx);
+
+
+/*
+** `load' and `call' functions (load and run Lua code)
+*/
+LUA_API void  (lua_call) (lua_State *L, int nargs, int nresults);
+LUA_API int   (lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
+LUA_API int   (lua_cpcall) (lua_State *L, lua_CFunction func, void *ud);
+LUA_API int   (lua_load) (lua_State *L, lua_Reader reader, void *dt,
+                                        const char *chunkname);
+
+LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data);
+
+
+/*
+** coroutine functions
+*/
+LUA_API int  (lua_yield) (lua_State *L, int nresults);
+LUA_API int  (lua_resume) (lua_State *L, int narg);
+LUA_API int  (lua_status) (lua_State *L);
+
+/*
+** garbage-collection function and options
+*/
+
+#define LUA_GCSTOP		0
+#define LUA_GCRESTART		1
+#define LUA_GCCOLLECT		2
+#define LUA_GCCOUNT		3
+#define LUA_GCCOUNTB		4
+#define LUA_GCSTEP		5
+#define LUA_GCSETPAUSE		6
+#define LUA_GCSETSTEPMUL	7
+
+LUA_API int (lua_gc) (lua_State *L, int what, int data);
+
+
+/*
+** miscellaneous functions
+*/
+
+LUA_API int   (lua_error) (lua_State *L);
+
+LUA_API int   (lua_next) (lua_State *L, int idx);
+
+LUA_API void  (lua_concat) (lua_State *L, int n);
+
+LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
+LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
+
+
+
+/*
+** ===============================================================
+** some useful macros
+** ===============================================================
+*/
+
+#define lua_pop(L,n)		lua_settop(L, -(n)-1)
+
+#define lua_newtable(L)		lua_createtable(L, 0, 0)
+
+#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
+
+#define lua_pushcfunction(L,f)	lua_pushcclosure(L, (f), 0)
+
+#define lua_strlen(L,i)		lua_objlen(L, (i))
+
+#define lua_isfunction(L,n)	(lua_type(L, (n)) == LUA_TFUNCTION)
+#define lua_istable(L,n)	(lua_type(L, (n)) == LUA_TTABLE)
+#define lua_islightuserdata(L,n)	(lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
+#define lua_isnil(L,n)		(lua_type(L, (n)) == LUA_TNIL)
+#define lua_isboolean(L,n)	(lua_type(L, (n)) == LUA_TBOOLEAN)
+#define lua_isthread(L,n)	(lua_type(L, (n)) == LUA_TTHREAD)
+#define lua_isnone(L,n)		(lua_type(L, (n)) == LUA_TNONE)
+#define lua_isnoneornil(L, n)	(lua_type(L, (n)) <= 0)
+
+#define lua_pushliteral(L, s)	\
+	lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
+
+#define lua_setglobal(L,s)	lua_setfield(L, LUA_GLOBALSINDEX, (s))
+#define lua_getglobal(L,s)	lua_getfield(L, LUA_GLOBALSINDEX, (s))
+
+#define lua_tostring(L,i)	lua_tolstring(L, (i), NULL)
+
+
+
+/*
+** compatibility macros and functions
+*/
+
+#define lua_open()	luaL_newstate()
+
+#define lua_getregistry(L)	lua_pushvalue(L, LUA_REGISTRYINDEX)
+
+#define lua_getgccount(L)	lua_gc(L, LUA_GCCOUNT, 0)
+
+#define lua_Chunkreader		lua_Reader
+#define lua_Chunkwriter		lua_Writer
+
+
+/* hack */
+LUA_API void lua_setlevel	(lua_State *from, lua_State *to);
+
+
+/*
+** {======================================================================
+** Debug API
+** =======================================================================
+*/
+
+
+/*
+** Event codes
+*/
+#define LUA_HOOKCALL	0
+#define LUA_HOOKRET	1
+#define LUA_HOOKLINE	2
+#define LUA_HOOKCOUNT	3
+#define LUA_HOOKTAILRET 4
+
+
+/*
+** Event masks
+*/
+#define LUA_MASKCALL	(1 << LUA_HOOKCALL)
+#define LUA_MASKRET	(1 << LUA_HOOKRET)
+#define LUA_MASKLINE	(1 << LUA_HOOKLINE)
+#define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)
+
+typedef struct lua_Debug lua_Debug;  /* activation record */
+
+
+/* Functions to be called by the debuger in specific events */
+typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
+
+
+LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar);
+LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
+LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
+LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
+LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n);
+LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n);
+LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count);
+LUA_API lua_Hook lua_gethook (lua_State *L);
+LUA_API int lua_gethookmask (lua_State *L);
+LUA_API int lua_gethookcount (lua_State *L);
+
+/* From Lua 5.2. */
+LUA_API void *lua_upvalueid (lua_State *L, int idx, int n);
+LUA_API void lua_upvaluejoin (lua_State *L, int idx1, int n1, int idx2, int n2);
+LUA_API int lua_loadx (lua_State *L, lua_Reader reader, void *dt,
+		       const char *chunkname, const char *mode);
+
+
+struct lua_Debug {
+  int event;
+  const char *name;	/* (n) */
+  const char *namewhat;	/* (n) `global', `local', `field', `method' */
+  const char *what;	/* (S) `Lua', `C', `main', `tail' */
+  const char *source;	/* (S) */
+  int currentline;	/* (l) */
+  int nups;		/* (u) number of upvalues */
+  int linedefined;	/* (S) */
+  int lastlinedefined;	/* (S) */
+  char short_src[LUA_IDSIZE]; /* (S) */
+  /* private part */
+  int i_ci;  /* active function */
+};
+
+/* }====================================================================== */
+
+
+/******************************************************************************
+* Copyright (C) 1994-2008 Lua.org, PUC-Rio.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+******************************************************************************/
+
+
+#endif
diff --git a/lib/luajit/src/lua.hpp b/lib/luajit/src/lua.hpp
new file mode 100644
index 00000000..07e9002d
--- /dev/null
+++ b/lib/luajit/src/lua.hpp
@@ -0,0 +1,9 @@
+// C++ wrapper for LuaJIT header files.
+
+extern "C" {
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+#include "luajit.h"
+}
+
diff --git a/lib/luajit/src/luaconf.h b/lib/luajit/src/luaconf.h
new file mode 100644
index 00000000..affb7da8
--- /dev/null
+++ b/lib/luajit/src/luaconf.h
@@ -0,0 +1,156 @@
+/*
+** Configuration header.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef luaconf_h
+#define luaconf_h
+
+#ifndef WINVER
+#define WINVER 0x0501
+#endif
+#include <limits.h>
+#include <stddef.h>
+
+/* Default path for loading Lua and C modules with require(). */
+#if defined(_WIN32)
+/*
+** In Windows, any exclamation mark ('!') in the path is replaced by the
+** path of the directory of the executable file of the current process.
+*/
+#define LUA_LDIR	"!\\lua\\"
+#define LUA_CDIR	"!\\"
+#define LUA_PATH_DEFAULT \
+  ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;"
+#define LUA_CPATH_DEFAULT \
+  ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
+#else
+/*
+** Note to distribution maintainers: do NOT patch the following lines!
+** Please read ../doc/install.html#distro and pass PREFIX=/usr instead.
+*/
+#ifndef LUA_MULTILIB
+#define LUA_MULTILIB	"lib"
+#endif
+#ifndef LUA_LMULTILIB
+#define LUA_LMULTILIB	"lib"
+#endif
+#define LUA_LROOT	"/usr/local"
+#define LUA_LUADIR	"/lua/5.1/"
+#define LUA_LJDIR	"/luajit-2.0.3/"
+
+#ifdef LUA_ROOT
+#define LUA_JROOT	LUA_ROOT
+#define LUA_RLDIR	LUA_ROOT "/share" LUA_LUADIR
+#define LUA_RCDIR	LUA_ROOT "/" LUA_MULTILIB LUA_LUADIR
+#define LUA_RLPATH	";" LUA_RLDIR "?.lua;" LUA_RLDIR "?/init.lua"
+#define LUA_RCPATH	";" LUA_RCDIR "?.so"
+#else
+#define LUA_JROOT	LUA_LROOT
+#define LUA_RLPATH
+#define LUA_RCPATH
+#endif
+
+#define LUA_JPATH	";" LUA_JROOT "/share" LUA_LJDIR "?.lua"
+#define LUA_LLDIR	LUA_LROOT "/share" LUA_LUADIR
+#define LUA_LCDIR	LUA_LROOT "/" LUA_LMULTILIB LUA_LUADIR
+#define LUA_LLPATH	";" LUA_LLDIR "?.lua;" LUA_LLDIR "?/init.lua"
+#define LUA_LCPATH1	";" LUA_LCDIR "?.so"
+#define LUA_LCPATH2	";" LUA_LCDIR "loadall.so"
+
+#define LUA_PATH_DEFAULT	"./?.lua" LUA_JPATH LUA_LLPATH LUA_RLPATH
+#define LUA_CPATH_DEFAULT	"./?.so" LUA_LCPATH1 LUA_RCPATH LUA_LCPATH2
+#endif
+
+/* Environment variable names for path overrides and initialization code. */
+#define LUA_PATH	"LUA_PATH"
+#define LUA_CPATH	"LUA_CPATH"
+#define LUA_INIT	"LUA_INIT"
+
+/* Special file system characters. */
+#if defined(_WIN32)
+#define LUA_DIRSEP	"\\"
+#else
+#define LUA_DIRSEP	"/"
+#endif
+#define LUA_PATHSEP	";"
+#define LUA_PATH_MARK	"?"
+#define LUA_EXECDIR	"!"
+#define LUA_IGMARK	"-"
+#define LUA_PATH_CONFIG \
+  LUA_DIRSEP "\n" LUA_PATHSEP "\n" LUA_PATH_MARK "\n" \
+  LUA_EXECDIR "\n" LUA_IGMARK
+
+/* Quoting in error messages. */
+#define LUA_QL(x)	"'" x "'"
+#define LUA_QS		LUA_QL("%s")
+
+/* Various tunables. */
+#define LUAI_MAXSTACK	65500	/* Max. # of stack slots for a thread (<64K). */
+#define LUAI_MAXCSTACK	8000	/* Max. # of stack slots for a C func (<10K). */
+#define LUAI_GCPAUSE	200	/* Pause GC until memory is at 200%. */
+#define LUAI_GCMUL	200	/* Run GC at 200% of allocation speed. */
+#define LUA_MAXCAPTURES	32	/* Max. pattern captures. */
+
+/* Compatibility with older library function names. */
+#define LUA_COMPAT_MOD		/* OLD: math.mod, NEW: math.fmod */
+#define LUA_COMPAT_GFIND	/* OLD: string.gfind, NEW: string.gmatch */
+
+/* Configuration for the frontend (the luajit executable). */
+#if defined(luajit_c)
+#define LUA_PROGNAME	"luajit"  /* Fallback frontend name. */
+#define LUA_PROMPT	"> "	/* Interactive prompt. */
+#define LUA_PROMPT2	">> "	/* Continuation prompt. */
+#define LUA_MAXINPUT	512	/* Max. input line length. */
+#endif
+
+/* Note: changing the following defines breaks the Lua 5.1 ABI. */
+#define LUA_INTEGER	ptrdiff_t
+#define LUA_IDSIZE	60	/* Size of lua_Debug.short_src. */
+/*
+** Size of lauxlib and io.* on-stack buffers. Weird workaround to avoid using
+** unreasonable amounts of stack space, but still retain ABI compatibility.
+** Blame Lua for depending on BUFSIZ in the ABI, blame **** for wrecking it.
+*/
+#define LUAL_BUFFERSIZE	(BUFSIZ > 16384 ? 8192 : BUFSIZ)
+
+/* The following defines are here only for compatibility with luaconf.h
+** from the standard Lua distribution. They must not be changed for LuaJIT.
+*/
+#define LUA_NUMBER_DOUBLE
+#define LUA_NUMBER		double
+#define LUAI_UACNUMBER		double
+#define LUA_NUMBER_SCAN		"%lf"
+#define LUA_NUMBER_FMT		"%.14g"
+#define lua_number2str(s, n)	sprintf((s), LUA_NUMBER_FMT, (n))
+#define LUAI_MAXNUMBER2STR	32
+#define LUA_INTFRMLEN		"l"
+#define LUA_INTFRM_T		long
+
+/* Linkage of public API functions. */
+#if defined(LUA_BUILD_AS_DLL)
+#if defined(LUA_CORE) || defined(LUA_LIB)
+#define LUA_API		__declspec(dllexport)
+#else
+#define LUA_API		__declspec(dllimport)
+#endif
+#else
+#define LUA_API		extern
+#endif
+
+#define LUALIB_API	LUA_API
+
+/* Support for internal assertions. */
+#if defined(LUA_USE_ASSERT) || defined(LUA_USE_APICHECK)
+#include <assert.h>
+#endif
+#ifdef LUA_USE_ASSERT
+#define lua_assert(x)		assert(x)
+#endif
+#ifdef LUA_USE_APICHECK
+#define luai_apicheck(L, o)	{ (void)L; assert(o); }
+#else
+#define luai_apicheck(L, o)	{ (void)L; }
+#endif
+
+#endif
diff --git a/lib/luajit/src/luajit.c b/lib/luajit/src/luajit.c
new file mode 100644
index 00000000..4cccf04e
--- /dev/null
+++ b/lib/luajit/src/luajit.c
@@ -0,0 +1,571 @@
+/*
+** LuaJIT frontend. Runs commands, scripts, read-eval-print (REPL) etc.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define luajit_c
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+#include "luajit.h"
+
+#include "lj_arch.h"
+
+#if LJ_TARGET_POSIX
+#include <unistd.h>
+#define lua_stdin_is_tty()	isatty(0)
+#elif LJ_TARGET_WINDOWS
+#include <io.h>
+#ifdef __BORLANDC__
+#define lua_stdin_is_tty()	isatty(_fileno(stdin))
+#else
+#define lua_stdin_is_tty()	_isatty(_fileno(stdin))
+#endif
+#else
+#define lua_stdin_is_tty()	1
+#endif
+
+#if !LJ_TARGET_CONSOLE
+#include <signal.h>
+#endif
+
+static lua_State *globalL = NULL;
+static const char *progname = LUA_PROGNAME;
+
+#if !LJ_TARGET_CONSOLE
+static void lstop(lua_State *L, lua_Debug *ar)
+{
+  (void)ar;  /* unused arg. */
+  lua_sethook(L, NULL, 0, 0);
+  /* Avoid luaL_error -- a C hook doesn't add an extra frame. */
+  luaL_where(L, 0);
+  lua_pushfstring(L, "%sinterrupted!", lua_tostring(L, -1));
+  lua_error(L);
+}
+
+static void laction(int i)
+{
+  signal(i, SIG_DFL); /* if another SIGINT happens before lstop,
+			 terminate process (default action) */
+  lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
+}
+#endif
+
+static void print_usage(void)
+{
+  fprintf(stderr,
+  "usage: %s [options]... [script [args]...].\n"
+  "Available options are:\n"
+  "  -e chunk  Execute string " LUA_QL("chunk") ".\n"
+  "  -l name   Require library " LUA_QL("name") ".\n"
+  "  -b ...    Save or list bytecode.\n"
+  "  -j cmd    Perform LuaJIT control command.\n"
+  "  -O[opt]   Control LuaJIT optimizations.\n"
+  "  -i        Enter interactive mode after executing " LUA_QL("script") ".\n"
+  "  -v        Show version information.\n"
+  "  -E        Ignore environment variables.\n"
+  "  --        Stop handling options.\n"
+  "  -         Execute stdin and stop handling options.\n"
+  ,
+  progname);
+  fflush(stderr);
+}
+
+static void l_message(const char *pname, const char *msg)
+{
+  if (pname) fprintf(stderr, "%s: ", pname);
+  fprintf(stderr, "%s\n", msg);
+  fflush(stderr);
+}
+
+static int report(lua_State *L, int status)
+{
+  if (status && !lua_isnil(L, -1)) {
+    const char *msg = lua_tostring(L, -1);
+    if (msg == NULL) msg = "(error object is not a string)";
+    l_message(progname, msg);
+    lua_pop(L, 1);
+  }
+  return status;
+}
+
+static int traceback(lua_State *L)
+{
+  if (!lua_isstring(L, 1)) { /* Non-string error object? Try metamethod. */
+    if (lua_isnoneornil(L, 1) ||
+	!luaL_callmeta(L, 1, "__tostring") ||
+	!lua_isstring(L, -1))
+      return 1;  /* Return non-string error object. */
+    lua_remove(L, 1);  /* Replace object by result of __tostring metamethod. */
+  }
+  luaL_traceback(L, L, lua_tostring(L, 1), 1);
+  return 1;
+}
+
+static int docall(lua_State *L, int narg, int clear)
+{
+  int status;
+  int base = lua_gettop(L) - narg;  /* function index */
+  lua_pushcfunction(L, traceback);  /* push traceback function */
+  lua_insert(L, base);  /* put it under chunk and args */
+#if !LJ_TARGET_CONSOLE
+  signal(SIGINT, laction);
+#endif
+  status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);
+#if !LJ_TARGET_CONSOLE
+  signal(SIGINT, SIG_DFL);
+#endif
+  lua_remove(L, base);  /* remove traceback function */
+  /* force a complete garbage collection in case of errors */
+  if (status != 0) lua_gc(L, LUA_GCCOLLECT, 0);
+  return status;
+}
+
+static void print_version(void)
+{
+  fputs(LUAJIT_VERSION " -- " LUAJIT_COPYRIGHT ". " LUAJIT_URL "\n", stdout);
+}
+
+static void print_jit_status(lua_State *L)
+{
+  int n;
+  const char *s;
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, -1, "jit");  /* Get jit.* module table. */
+  lua_remove(L, -2);
+  lua_getfield(L, -1, "status");
+  lua_remove(L, -2);
+  n = lua_gettop(L);
+  lua_call(L, 0, LUA_MULTRET);
+  fputs(lua_toboolean(L, n) ? "JIT: ON" : "JIT: OFF", stdout);
+  for (n++; (s = lua_tostring(L, n)); n++) {
+    putc(' ', stdout);
+    fputs(s, stdout);
+  }
+  putc('\n', stdout);
+}
+
+static int getargs(lua_State *L, char **argv, int n)
+{
+  int narg;
+  int i;
+  int argc = 0;
+  while (argv[argc]) argc++;  /* count total number of arguments */
+  narg = argc - (n + 1);  /* number of arguments to the script */
+  luaL_checkstack(L, narg + 3, "too many arguments to script");
+  for (i = n+1; i < argc; i++)
+    lua_pushstring(L, argv[i]);
+  lua_createtable(L, narg, n + 1);
+  for (i = 0; i < argc; i++) {
+    lua_pushstring(L, argv[i]);
+    lua_rawseti(L, -2, i - n);
+  }
+  return narg;
+}
+
+static int dofile(lua_State *L, const char *name)
+{
+  int status = luaL_loadfile(L, name) || docall(L, 0, 1);
+  return report(L, status);
+}
+
+static int dostring(lua_State *L, const char *s, const char *name)
+{
+  int status = luaL_loadbuffer(L, s, strlen(s), name) || docall(L, 0, 1);
+  return report(L, status);
+}
+
+static int dolibrary(lua_State *L, const char *name)
+{
+  lua_getglobal(L, "require");
+  lua_pushstring(L, name);
+  return report(L, docall(L, 1, 1));
+}
+
+static void write_prompt(lua_State *L, int firstline)
+{
+  const char *p;
+  lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");
+  p = lua_tostring(L, -1);
+  if (p == NULL) p = firstline ? LUA_PROMPT : LUA_PROMPT2;
+  fputs(p, stdout);
+  fflush(stdout);
+  lua_pop(L, 1);  /* remove global */
+}
+
+static int incomplete(lua_State *L, int status)
+{
+  if (status == LUA_ERRSYNTAX) {
+    size_t lmsg;
+    const char *msg = lua_tolstring(L, -1, &lmsg);
+    const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
+    if (strstr(msg, LUA_QL("<eof>")) == tp) {
+      lua_pop(L, 1);
+      return 1;
+    }
+  }
+  return 0;  /* else... */
+}
+
+static int pushline(lua_State *L, int firstline)
+{
+  char buf[LUA_MAXINPUT];
+  write_prompt(L, firstline);
+  if (fgets(buf, LUA_MAXINPUT, stdin)) {
+    size_t len = strlen(buf);
+    if (len > 0 && buf[len-1] == '\n')
+      buf[len-1] = '\0';
+    if (firstline && buf[0] == '=')
+      lua_pushfstring(L, "return %s", buf+1);
+    else
+      lua_pushstring(L, buf);
+    return 1;
+  }
+  return 0;
+}
+
+static int loadline(lua_State *L)
+{
+  int status;
+  lua_settop(L, 0);
+  if (!pushline(L, 1))
+    return -1;  /* no input */
+  for (;;) {  /* repeat until gets a complete line */
+    status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");
+    if (!incomplete(L, status)) break;  /* cannot try to add lines? */
+    if (!pushline(L, 0))  /* no more input? */
+      return -1;
+    lua_pushliteral(L, "\n");  /* add a new line... */
+    lua_insert(L, -2);  /* ...between the two lines */
+    lua_concat(L, 3);  /* join them */
+  }
+  lua_remove(L, 1);  /* remove line */
+  return status;
+}
+
+static void dotty(lua_State *L)
+{
+  int status;
+  const char *oldprogname = progname;
+  progname = NULL;
+  while ((status = loadline(L)) != -1) {
+    if (status == 0) status = docall(L, 0, 0);
+    report(L, status);
+    if (status == 0 && lua_gettop(L) > 0) {  /* any result to print? */
+      lua_getglobal(L, "print");
+      lua_insert(L, 1);
+      if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)
+	l_message(progname,
+	  lua_pushfstring(L, "error calling " LUA_QL("print") " (%s)",
+			      lua_tostring(L, -1)));
+    }
+  }
+  lua_settop(L, 0);  /* clear stack */
+  fputs("\n", stdout);
+  fflush(stdout);
+  progname = oldprogname;
+}
+
+static int handle_script(lua_State *L, char **argv, int n)
+{
+  int status;
+  const char *fname;
+  int narg = getargs(L, argv, n);  /* collect arguments */
+  lua_setglobal(L, "arg");
+  fname = argv[n];
+  if (strcmp(fname, "-") == 0 && strcmp(argv[n-1], "--") != 0)
+    fname = NULL;  /* stdin */
+  status = luaL_loadfile(L, fname);
+  lua_insert(L, -(narg+1));
+  if (status == 0)
+    status = docall(L, narg, 0);
+  else
+    lua_pop(L, narg);
+  return report(L, status);
+}
+
+/* Load add-on module. */
+static int loadjitmodule(lua_State *L)
+{
+  lua_getglobal(L, "require");
+  lua_pushliteral(L, "jit.");
+  lua_pushvalue(L, -3);
+  lua_concat(L, 2);
+  if (lua_pcall(L, 1, 1, 0)) {
+    const char *msg = lua_tostring(L, -1);
+    if (msg && !strncmp(msg, "module ", 7)) {
+    err:
+      l_message(progname,
+		"unknown luaJIT command or jit.* modules not installed");
+      return 1;
+    } else {
+      return report(L, 1);
+    }
+  }
+  lua_getfield(L, -1, "start");
+  if (lua_isnil(L, -1)) goto err;
+  lua_remove(L, -2);  /* Drop module table. */
+  return 0;
+}
+
+/* Run command with options. */
+static int runcmdopt(lua_State *L, const char *opt)
+{
+  int narg = 0;
+  if (opt && *opt) {
+    for (;;) {  /* Split arguments. */
+      const char *p = strchr(opt, ',');
+      narg++;
+      if (!p) break;
+      if (p == opt)
+	lua_pushnil(L);
+      else
+	lua_pushlstring(L, opt, (size_t)(p - opt));
+      opt = p + 1;
+    }
+    if (*opt)
+      lua_pushstring(L, opt);
+    else
+      lua_pushnil(L);
+  }
+  return report(L, lua_pcall(L, narg, 0, 0));
+}
+
+/* JIT engine control command: try jit library first or load add-on module. */
+static int dojitcmd(lua_State *L, const char *cmd)
+{
+  const char *opt = strchr(cmd, '=');
+  lua_pushlstring(L, cmd, opt ? (size_t)(opt - cmd) : strlen(cmd));
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, -1, "jit");  /* Get jit.* module table. */
+  lua_remove(L, -2);
+  lua_pushvalue(L, -2);
+  lua_gettable(L, -2);  /* Lookup library function. */
+  if (!lua_isfunction(L, -1)) {
+    lua_pop(L, 2);  /* Drop non-function and jit.* table, keep module name. */
+    if (loadjitmodule(L))
+      return 1;
+  } else {
+    lua_remove(L, -2);  /* Drop jit.* table. */
+  }
+  lua_remove(L, -2);  /* Drop module name. */
+  return runcmdopt(L, opt ? opt+1 : opt);
+}
+
+/* Optimization flags. */
+static int dojitopt(lua_State *L, const char *opt)
+{
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, -1, "jit.opt");  /* Get jit.opt.* module table. */
+  lua_remove(L, -2);
+  lua_getfield(L, -1, "start");
+  lua_remove(L, -2);
+  return runcmdopt(L, opt);
+}
+
+/* Save or list bytecode. */
+static int dobytecode(lua_State *L, char **argv)
+{
+  int narg = 0;
+  lua_pushliteral(L, "bcsave");
+  if (loadjitmodule(L))
+    return 1;
+  if (argv[0][2]) {
+    narg++;
+    argv[0][1] = '-';
+    lua_pushstring(L, argv[0]+1);
+  }
+  for (argv++; *argv != NULL; narg++, argv++)
+    lua_pushstring(L, *argv);
+  return report(L, lua_pcall(L, narg, 0, 0));
+}
+
+/* check that argument has no extra characters at the end */
+#define notail(x)	{if ((x)[2] != '\0') return -1;}
+
+#define FLAGS_INTERACTIVE	1
+#define FLAGS_VERSION		2
+#define FLAGS_EXEC		4
+#define FLAGS_OPTION		8
+#define FLAGS_NOENV		16
+
+static int collectargs(char **argv, int *flags)
+{
+  int i;
+  for (i = 1; argv[i] != NULL; i++) {
+    if (argv[i][0] != '-')  /* Not an option? */
+      return i;
+    switch (argv[i][1]) {  /* Check option. */
+    case '-':
+      notail(argv[i]);
+      return (argv[i+1] != NULL ? i+1 : 0);
+    case '\0':
+      return i;
+    case 'i':
+      notail(argv[i]);
+      *flags |= FLAGS_INTERACTIVE;
+      /* fallthrough */
+    case 'v':
+      notail(argv[i]);
+      *flags |= FLAGS_VERSION;
+      break;
+    case 'e':
+      *flags |= FLAGS_EXEC;
+    case 'j':  /* LuaJIT extension */
+    case 'l':
+      *flags |= FLAGS_OPTION;
+      if (argv[i][2] == '\0') {
+	i++;
+	if (argv[i] == NULL) return -1;
+      }
+      break;
+    case 'O': break;  /* LuaJIT extension */
+    case 'b':  /* LuaJIT extension */
+      if (*flags) return -1;
+      *flags |= FLAGS_EXEC;
+      return 0;
+    case 'E':
+      *flags |= FLAGS_NOENV;
+      break;
+    default: return -1;  /* invalid option */
+    }
+  }
+  return 0;
+}
+
+static int runargs(lua_State *L, char **argv, int n)
+{
+  int i;
+  for (i = 1; i < n; i++) {
+    if (argv[i] == NULL) continue;
+    lua_assert(argv[i][0] == '-');
+    switch (argv[i][1]) {  /* option */
+    case 'e': {
+      const char *chunk = argv[i] + 2;
+      if (*chunk == '\0') chunk = argv[++i];
+      lua_assert(chunk != NULL);
+      if (dostring(L, chunk, "=(command line)") != 0)
+	return 1;
+      break;
+      }
+    case 'l': {
+      const char *filename = argv[i] + 2;
+      if (*filename == '\0') filename = argv[++i];
+      lua_assert(filename != NULL);
+      if (dolibrary(L, filename))
+	return 1;  /* stop if file fails */
+      break;
+      }
+    case 'j': {  /* LuaJIT extension */
+      const char *cmd = argv[i] + 2;
+      if (*cmd == '\0') cmd = argv[++i];
+      lua_assert(cmd != NULL);
+      if (dojitcmd(L, cmd))
+	return 1;
+      break;
+      }
+    case 'O':  /* LuaJIT extension */
+      if (dojitopt(L, argv[i] + 2))
+	return 1;
+      break;
+    case 'b':  /* LuaJIT extension */
+      return dobytecode(L, argv+i);
+    default: break;
+    }
+  }
+  return 0;
+}
+
+static int handle_luainit(lua_State *L)
+{
+#if LJ_TARGET_CONSOLE
+  const char *init = NULL;
+#else
+  const char *init = getenv(LUA_INIT);
+#endif
+  if (init == NULL)
+    return 0;  /* status OK */
+  else if (init[0] == '@')
+    return dofile(L, init+1);
+  else
+    return dostring(L, init, "=" LUA_INIT);
+}
+
+static struct Smain {
+  char **argv;
+  int argc;
+  int status;
+} smain;
+
+static int pmain(lua_State *L)
+{
+  struct Smain *s = &smain;
+  char **argv = s->argv;
+  int script;
+  int flags = 0;
+  globalL = L;
+  if (argv[0] && argv[0][0]) progname = argv[0];
+  LUAJIT_VERSION_SYM();  /* linker-enforced version check */
+  script = collectargs(argv, &flags);
+  if (script < 0) {  /* invalid args? */
+    print_usage();
+    s->status = 1;
+    return 0;
+  }
+  if ((flags & FLAGS_NOENV)) {
+    lua_pushboolean(L, 1);
+    lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
+  }
+  lua_gc(L, LUA_GCSTOP, 0);  /* stop collector during initialization */
+  luaL_openlibs(L);  /* open libraries */
+  lua_gc(L, LUA_GCRESTART, -1);
+  if (!(flags & FLAGS_NOENV)) {
+    s->status = handle_luainit(L);
+    if (s->status != 0) return 0;
+  }
+  if ((flags & FLAGS_VERSION)) print_version();
+  s->status = runargs(L, argv, (script > 0) ? script : s->argc);
+  if (s->status != 0) return 0;
+  if (script) {
+    s->status = handle_script(L, argv, script);
+    if (s->status != 0) return 0;
+  }
+  if ((flags & FLAGS_INTERACTIVE)) {
+    print_jit_status(L);
+    dotty(L);
+  } else if (script == 0 && !(flags & (FLAGS_EXEC|FLAGS_VERSION))) {
+    if (lua_stdin_is_tty()) {
+      print_version();
+      print_jit_status(L);
+      dotty(L);
+    } else {
+      dofile(L, NULL);  /* executes stdin as a file */
+    }
+  }
+  return 0;
+}
+
+int main(int argc, char **argv)
+{
+  int status;
+  lua_State *L = lua_open();  /* create state */
+  if (L == NULL) {
+    l_message(argv[0], "cannot create state: not enough memory");
+    return EXIT_FAILURE;
+  }
+  smain.argc = argc;
+  smain.argv = argv;
+  status = lua_cpcall(L, pmain, NULL);
+  report(L, status);
+  lua_close(L);
+  return (status || smain.status) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
diff --git a/lib/luajit/src/luajit.h b/lib/luajit/src/luajit.h
new file mode 100644
index 00000000..be721cf4
--- /dev/null
+++ b/lib/luajit/src/luajit.h
@@ -0,0 +1,70 @@
+/*
+** LuaJIT -- a Just-In-Time Compiler for Lua. http://luajit.org/
+**
+** Copyright (C) 2005-2014 Mike Pall. All rights reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+*/
+
+#ifndef _LUAJIT_H
+#define _LUAJIT_H
+
+#include "lua.h"
+
+#define LUAJIT_VERSION		"LuaJIT 2.0.3"
+#define LUAJIT_VERSION_NUM	20003  /* Version 2.0.3 = 02.00.03. */
+#define LUAJIT_VERSION_SYM	luaJIT_version_2_0_3
+#define LUAJIT_COPYRIGHT	"Copyright (C) 2005-2014 Mike Pall"
+#define LUAJIT_URL		"http://luajit.org/"
+
+/* Modes for luaJIT_setmode. */
+#define LUAJIT_MODE_MASK	0x00ff
+
+enum {
+  LUAJIT_MODE_ENGINE,		/* Set mode for whole JIT engine. */
+  LUAJIT_MODE_DEBUG,		/* Set debug mode (idx = level). */
+
+  LUAJIT_MODE_FUNC,		/* Change mode for a function. */
+  LUAJIT_MODE_ALLFUNC,		/* Recurse into subroutine protos. */
+  LUAJIT_MODE_ALLSUBFUNC,	/* Change only the subroutines. */
+
+  LUAJIT_MODE_TRACE,		/* Flush a compiled trace. */
+
+  LUAJIT_MODE_WRAPCFUNC = 0x10,	/* Set wrapper mode for C function calls. */
+
+  LUAJIT_MODE_MAX
+};
+
+/* Flags or'ed in to the mode. */
+#define LUAJIT_MODE_OFF		0x0000	/* Turn feature off. */
+#define LUAJIT_MODE_ON		0x0100	/* Turn feature on. */
+#define LUAJIT_MODE_FLUSH	0x0200	/* Flush JIT-compiled code. */
+
+/* LuaJIT public C API. */
+
+/* Control the JIT engine. */
+LUA_API int luaJIT_setmode(lua_State *L, int idx, int mode);
+
+/* Enforce (dynamic) linker error for version mismatches. Call from main. */
+LUA_API void LUAJIT_VERSION_SYM(void);
+
+#endif
diff --git a/lib/luajit/src/lualib.h b/lib/luajit/src/lualib.h
new file mode 100644
index 00000000..1c1e3179
--- /dev/null
+++ b/lib/luajit/src/lualib.h
@@ -0,0 +1,43 @@
+/*
+** Standard library header.
+** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LUALIB_H
+#define _LUALIB_H
+
+#include "lua.h"
+
+#define LUA_FILEHANDLE	"FILE*"
+
+#define LUA_COLIBNAME	"coroutine"
+#define LUA_MATHLIBNAME	"math"
+#define LUA_STRLIBNAME	"string"
+#define LUA_TABLIBNAME	"table"
+#define LUA_IOLIBNAME	"io"
+#define LUA_OSLIBNAME	"os"
+#define LUA_LOADLIBNAME	"package"
+#define LUA_DBLIBNAME	"debug"
+#define LUA_BITLIBNAME	"bit"
+#define LUA_JITLIBNAME	"jit"
+#define LUA_FFILIBNAME	"ffi"
+
+LUALIB_API int luaopen_base(lua_State *L);
+LUALIB_API int luaopen_math(lua_State *L);
+LUALIB_API int luaopen_string(lua_State *L);
+LUALIB_API int luaopen_table(lua_State *L);
+LUALIB_API int luaopen_io(lua_State *L);
+LUALIB_API int luaopen_os(lua_State *L);
+LUALIB_API int luaopen_package(lua_State *L);
+LUALIB_API int luaopen_debug(lua_State *L);
+LUALIB_API int luaopen_bit(lua_State *L);
+LUALIB_API int luaopen_jit(lua_State *L);
+LUALIB_API int luaopen_ffi(lua_State *L);
+
+LUALIB_API void luaL_openlibs(lua_State *L);
+
+#ifndef lua_assert
+#define lua_assert(x)	((void)0)
+#endif
+
+#endif
diff --git a/lib/luajit/src/msvcbuild.bat b/lib/luajit/src/msvcbuild.bat
new file mode 100644
index 00000000..9160e0f8
--- /dev/null
+++ b/lib/luajit/src/msvcbuild.bat
@@ -0,0 +1,113 @@
+@rem Script to build LuaJIT with MSVC.
+@rem Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+@rem
+@rem Either open a "Visual Studio .NET Command Prompt"
+@rem (Note that the Express Edition does not contain an x64 compiler)
+@rem -or-
+@rem Open a "Windows SDK Command Shell" and set the compiler environment:
+@rem     setenv /release /x86
+@rem   -or-
+@rem     setenv /release /x64
+@rem
+@rem Then cd to this directory and run this script.
+
+@if not defined INCLUDE goto :FAIL
+
+@setlocal
+@set LJCOMPILE=cl /nologo /c /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE
+@set LJLINK=link /nologo
+@set LJMT=mt /nologo
+@set LJLIB=lib /nologo /nodefaultlib
+@set DASMDIR=..\dynasm
+@set DASM=%DASMDIR%\dynasm.lua
+@set LJDLLNAME=lua51.dll
+@set LJLIBNAME=lua51.lib
+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c
+
+%LJCOMPILE% host\minilua.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:minilua.exe minilua.obj
+@if errorlevel 1 goto :BAD
+if exist minilua.exe.manifest^
+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe
+
+@set DASMFLAGS=-D WIN -D JIT -D FFI -D P64
+@set LJARCH=x64
+@minilua
+@if errorlevel 8 goto :X64
+@set DASMFLAGS=-D WIN -D JIT -D FFI
+@set LJARCH=x86
+:X64
+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_x86.dasc
+@if errorlevel 1 goto :BAD
+
+%LJCOMPILE% /I "." /I %DASMDIR% host\buildvm*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:buildvm.exe buildvm*.obj
+@if errorlevel 1 goto :BAD
+if exist buildvm.exe.manifest^
+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe
+
+buildvm -m peobj -o lj_vm.obj
+@if errorlevel 1 goto :BAD
+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m libdef -o lj_libdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m recdef -o lj_recdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
+@if errorlevel 1 goto :BAD
+
+@if "%1" neq "debug" goto :NODEBUG
+@shift
+@set LJCOMPILE=%LJCOMPILE% /Zi
+@set LJLINK=%LJLINK% /debug
+:NODEBUG
+@if "%1"=="amalg" goto :AMALGDLL
+@if "%1"=="static" goto :STATIC
+%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL lj_*.c lib_*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /DLL /out:%LJDLLNAME% lj_*.obj lib_*.obj
+@if errorlevel 1 goto :BAD
+@goto :MTDLL
+:STATIC
+%LJCOMPILE% lj_*.c lib_*.c
+@if errorlevel 1 goto :BAD
+%LJLIB% /OUT:%LJLIBNAME% lj_*.obj lib_*.obj
+@if errorlevel 1 goto :BAD
+@goto :MTDLL
+:AMALGDLL
+%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL ljamalg.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /DLL /out:%LJDLLNAME% ljamalg.obj lj_vm.obj
+@if errorlevel 1 goto :BAD
+:MTDLL
+if exist %LJDLLNAME%.manifest^
+  %LJMT% -manifest %LJDLLNAME%.manifest -outputresource:%LJDLLNAME%;2
+
+%LJCOMPILE% luajit.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:luajit.exe luajit.obj %LJLIBNAME%
+@if errorlevel 1 goto :BAD
+if exist luajit.exe.manifest^
+  %LJMT% -manifest luajit.exe.manifest -outputresource:luajit.exe
+
+@del *.obj *.manifest minilua.exe buildvm.exe
+@echo.
+@echo === Successfully built LuaJIT for Windows/%LJARCH% ===
+
+@goto :END
+:BAD
+@echo.
+@echo *******************************************************
+@echo *** Build FAILED -- Please check the error messages ***
+@echo *******************************************************
+@goto :END
+:FAIL
+@echo You must open a "Visual Studio .NET Command Prompt" to run this script
+:END
diff --git a/lib/luajit/src/ps4build.bat b/lib/luajit/src/ps4build.bat
new file mode 100644
index 00000000..42fc9a64
--- /dev/null
+++ b/lib/luajit/src/ps4build.bat
@@ -0,0 +1,103 @@
+@rem Script to build LuaJIT with the PS4 SDK.
+@rem Donated to the public domain.
+@rem
+@rem Open a "Visual Studio .NET Command Prompt" (64 bit host compiler)
+@rem Then cd to this directory and run this script.
+
+@if not defined INCLUDE goto :FAIL
+@if not defined SCE_ORBIS_SDK_DIR goto :FAIL
+
+@setlocal
+@rem ---- Host compiler ----
+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE
+@set LJLINK=link /nologo
+@set LJMT=mt /nologo
+@set DASMDIR=..\dynasm
+@set DASM=%DASMDIR%\dynasm.lua
+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c
+
+%LJCOMPILE% host\minilua.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:minilua.exe minilua.obj
+@if errorlevel 1 goto :BAD
+if exist minilua.exe.manifest^
+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe
+
+@rem Check for 64 bit host compiler.
+@minilua
+@if not errorlevel 8 goto :FAIL
+
+@set DASMFLAGS=-D P64
+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_x86.dasc
+@if errorlevel 1 goto :BAD
+
+%LJCOMPILE% /I "." /I %DASMDIR% -DLUAJIT_TARGET=LUAJIT_ARCH_X64 -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI host\buildvm*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:buildvm.exe buildvm*.obj
+@if errorlevel 1 goto :BAD
+if exist buildvm.exe.manifest^
+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe
+
+buildvm -m elfasm -o lj_vm.s
+@if errorlevel 1 goto :BAD
+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m libdef -o lj_libdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m recdef -o lj_recdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
+@if errorlevel 1 goto :BAD
+
+@rem ---- Cross compiler ----
+@set LJCOMPILE="%SCE_ORBIS_SDK_DIR%\host_tools\bin\orbis-clang" -c -Wall -DLUAJIT_DISABLE_FFI
+@set LJLIB="%SCE_ORBIS_SDK_DIR%\host_tools\bin\orbis-ar" rcus
+@set INCLUDE=""
+
+orbis-as -o lj_vm.o lj_vm.s
+
+@if "%1" neq "debug" goto :NODEBUG
+@shift
+@set LJCOMPILE=%LJCOMPILE% -g -O0
+@set TARGETLIB=libluajitD.a
+goto :BUILD
+:NODEBUG
+@set LJCOMPILE=%LJCOMPILE% -O2
+@set TARGETLIB=libluajit.a
+:BUILD
+del %TARGETLIB%
+@if "%1"=="amalg" goto :AMALG
+for %%f in (lj_*.c lib_*.c) do (
+  %LJCOMPILE% %%f
+  @if errorlevel 1 goto :BAD
+)
+
+%LJLIB% %TARGETLIB% lj_*.o lib_*.o
+@if errorlevel 1 goto :BAD
+@goto :NOAMALG
+:AMALG
+%LJCOMPILE% ljamalg.c
+@if errorlevel 1 goto :BAD
+%LJLIB% %TARGETLIB% ljamalg.o lj_vm.o
+@if errorlevel 1 goto :BAD
+:NOAMALG
+
+@del *.o *.obj *.manifest minilua.exe buildvm.exe
+@echo.
+@echo === Successfully built LuaJIT for PS4 ===
+
+@goto :END
+:BAD
+@echo.
+@echo *******************************************************
+@echo *** Build FAILED -- Please check the error messages ***
+@echo *******************************************************
+@goto :END
+:FAIL
+@echo To run this script you must open a "Visual Studio .NET Command Prompt"
+@echo (64 bit host compiler). The PS4 Orbis SDK must be installed, too.
+:END
diff --git a/lib/luajit/src/vm_arm.dasc b/lib/luajit/src/vm_arm.dasc
new file mode 100644
index 00000000..82cba909
--- /dev/null
+++ b/lib/luajit/src/vm_arm.dasc
@@ -0,0 +1,4487 @@
+|// Low-level VM code for ARM CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch arm
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|
+|// The following must be C callee-save.
+|.define MASKR8,	r4	// 255*8 constant for fast bytecode decoding.
+|.define KBASE,		r5	// Constants of current Lua function.
+|.define PC,		r6	// Next PC.
+|.define DISPATCH,	r7	// Opcode dispatch table.
+|.define LREG,		r8	// Register holding lua_State (also in SAVE_L).
+|
+|// C callee-save in EABI, but often refetched. Temporary in iOS 3.0+.
+|.define BASE,		r9	// Base of current Lua stack frame.
+|
+|// The following temporaries are not saved across C calls, except for RA/RC.
+|.define RA,		r10	// Callee-save.
+|.define RC,		r11	// Callee-save.
+|.define RB,		r12
+|.define OP,		r12	// Overlaps RB, must not be lr.
+|.define INS,		lr
+|
+|// Calling conventions. Also used as temporaries.
+|.define CARG1,		r0
+|.define CARG2,		r1
+|.define CARG3,		r2
+|.define CARG4,		r3
+|.define CARG12,	r0	// For 1st soft-fp double.
+|.define CARG34,	r2	// For 2nd soft-fp double.
+|
+|.define CRET1,		r0
+|.define CRET2,		r1
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.define SAVE_R4,	[sp, #28]
+|.define CFRAME_SPACE,	#28
+|.define SAVE_ERRF,	[sp, #24]
+|.define SAVE_NRES,	[sp, #20]
+|.define SAVE_CFRAME,	[sp, #16]
+|.define SAVE_L,	[sp, #12]
+|.define SAVE_PC,	[sp, #8]
+|.define SAVE_MULTRES,	[sp, #4]
+|.define ARG5,		[sp]
+|
+|.define TMPDhi,	[sp, #4]
+|.define TMPDlo,	[sp]
+|.define TMPD,		[sp]
+|.define TMPDp,		sp
+|
+|.if FPU
+|.macro saveregs
+|  push {r5, r6, r7, r8, r9, r10, r11, lr}
+|  vpush {d8-d15}
+|  sub sp, sp, CFRAME_SPACE+4
+|  str r4, SAVE_R4
+|.endmacro
+|.macro restoreregs_ret
+|  ldr r4, SAVE_R4
+|  add sp, sp, CFRAME_SPACE+4
+|  vpop {d8-d15}
+|  pop {r5, r6, r7, r8, r9, r10, r11, pc}
+|.endmacro
+|.else
+|.macro saveregs
+|  push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
+|  sub sp, sp, CFRAME_SPACE
+|.endmacro
+|.macro restoreregs_ret
+|  add sp, sp, CFRAME_SPACE
+|  pop {r4, r5, r6, r7, r8, r9, r10, r11, pc}
+|.endmacro
+|.endif
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; ud; .endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Access to frame relative to BASE.
+|.define FRAME_FUNC,	#-8
+|.define FRAME_PC,	#-4
+|
+|.macro decode_RA8, dst, ins; and dst, MASKR8, ins, lsr #5; .endmacro
+|.macro decode_RB8, dst, ins; and dst, MASKR8, ins, lsr #21; .endmacro
+|.macro decode_RC8, dst, ins; and dst, MASKR8, ins, lsr #13; .endmacro
+|.macro decode_RD, dst, ins; lsr dst, ins, #16; .endmacro
+|.macro decode_OP, dst, ins; and dst, ins, #255; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  ldrb OP, [PC]
+|.endmacro
+|.macro ins_NEXT2
+|   ldr INS, [PC], #4
+|.endmacro
+|// Instruction decode+dispatch.
+|.macro ins_NEXT3
+|  ldr OP, [DISPATCH, OP, lsl #2]
+|   decode_RA8 RA, INS
+|   decode_RD RC, INS
+|  bx OP
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|  ins_NEXT3
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|  .define ins_next3, ins_NEXT3
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|  .endmacro
+|  .macro ins_next3
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Avoid register name substitution for field name.
+#define field_pc	pc
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, CARG3 = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  ldr PC, LFUNC:CARG3->field_pc
+|  ldrb OP, [PC]  // STALL: load PC. early PC.
+|   ldr INS, [PC], #4
+|  ldr OP, [DISPATCH, OP, lsl #2]  // STALL: load OP. early OP.
+|   decode_RA8 RA, INS
+|   add RA, RA, BASE
+|  bx OP
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, CARG3 = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  str PC, [BASE, FRAME_PC]
+|  ins_callt  // STALL: locked PC.
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checktp, reg, tp; cmn reg, #-tp; .endmacro
+|.macro checktpeq, reg, tp; cmneq reg, #-tp; .endmacro
+|.macro checktpne, reg, tp; cmnne reg, #-tp; .endmacro
+|.macro checkstr, reg, target; checktp reg, LJ_TSTR; bne target; .endmacro
+|.macro checktab, reg, target; checktp reg, LJ_TTAB; bne target; .endmacro
+|.macro checkfunc, reg, target; checktp reg, LJ_TFUNC; bne target; .endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro hotcheck, delta
+|  lsr CARG1, PC, #1
+|  and CARG1, CARG1, #126
+|  sub CARG1, CARG1, #-GG_DISP2HOT
+|  ldrh CARG2, [DISPATCH, CARG1]
+|  subs CARG2, CARG2, #delta
+|  strh CARG2, [DISPATCH, CARG1]
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP
+|  blo ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL
+|  blo ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state.
+|.macro mv_vmstate, reg, st; mvn reg, #LJ_VMST_..st; .endmacro
+|.macro st_vmstate, reg; str reg, [DISPATCH, #DISPATCH_GL(vmstate)]; .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp
+|  ldr tmp, [DISPATCH, #DISPATCH_GL(gc.grayagain)]
+|   bic mark, mark, #LJ_GC_BLACK		// black2gray(tab)
+|  str tab, [DISPATCH, #DISPATCH_GL(gc.grayagain)]
+|   strb mark, tab->marked
+|  str tmp, tab->gclist
+|.endmacro
+|
+|.macro .IOS, a, b
+|.if IOS
+|  a, b
+|.endif
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+#if !LJ_DUALNUM
+#error "Only dual-number mode supported for ARM target"
+#endif
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: RB = previous base.
+  |  tst PC, #FRAME_P
+  |  beq ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  ldr PC, [RB, FRAME_PC]		// Fetch PC of previous frame.
+  |   mvn CARG2, #~LJ_TTRUE
+  |  mov BASE, RB
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   str CARG2, [RA, FRAME_PC]		// Prepend true to results.
+  |  sub RA, RA, #8
+  |
+  |->vm_returnc:
+  |  adds RC, RC, #8			// RC = (nresults+1)*8.
+  |  mov CRET1, #LUA_YIELD
+  |  beq ->vm_unwind_c_eh
+  |  str RC, SAVE_MULTRES
+  |  ands CARG1, PC, #FRAME_TYPE
+  |  beq ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RC/MULTRES = (nresults+1)*8, PC = return
+  |  // CARG1 = PC & FRAME_TYPE
+  |  bic RB, PC, #FRAME_TYPEP
+  |   cmp CARG1, #FRAME_C
+  |  sub RB, BASE, RB			// RB = previous base.
+  |   bne ->vm_returnp
+  |
+  |  str RB, L->base
+  |   ldr KBASE, SAVE_NRES
+  |    mv_vmstate CARG4, C
+  |   sub BASE, BASE, #8
+  |  subs CARG3, RC, #8
+  |   lsl KBASE, KBASE, #3		// KBASE = (nresults_wanted+1)*8
+  |    st_vmstate CARG4
+  |  beq >2
+  |1:
+  |  subs CARG3, CARG3, #8
+  |   ldrd CARG12, [RA], #8
+  |   strd CARG12, [BASE], #8
+  |  bne <1
+  |2:
+  |  cmp KBASE, RC			// More/less results wanted?
+  |  bne >6
+  |3:
+  |  str BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  ldr RC, SAVE_CFRAME		// Restore previous C frame.
+  |   mov CRET1, #0			// Ok return status for vm_pcall.
+  |  str RC, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs_ret
+  |
+  |6:
+  |  blt >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  ldr CARG3, L->maxstack
+  |   mvn CARG2, #~LJ_TNIL
+  |  cmp BASE, CARG3
+  |  bhs >8
+  |   str CARG2, [BASE, #4]
+  |  add RC, RC, #8
+  |  add BASE, BASE, #8
+  |  b <2
+  |
+  |7:  // Less results wanted.
+  |  sub CARG1, RC, KBASE
+  |  cmp KBASE, #0			// LUA_MULTRET+1 case?
+  |  subne BASE, BASE, CARG1		// Either keep top or shrink it.
+  |  b <3
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  str BASE, L->top			// Save current top held in BASE (yes).
+  |  mov CARG2, KBASE
+  |  mov CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->top			// Need the (realloced) L->top in BASE.
+  |  b <2
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mov sp, CARG1
+  |  mov CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  ldr L, SAVE_L
+  |   mv_vmstate CARG4, C
+  |  ldr GL:CARG3, L->glref
+  |   str CARG4, GL:CARG3->vmstate
+  |  b ->vm_leave_unw
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  bic CARG1, CARG1, #~CFRAME_RAWMASK	// Use two steps: bic sp is deprecated.
+  |  mov sp, CARG1
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  ldr L, SAVE_L
+  |   mov MASKR8, #255
+  |    mov RC, #16			// 2 results: false + error message.
+  |   lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |  ldr BASE, L->base
+  |   ldr DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |    mvn CARG1, #~LJ_TFALSE
+  |  sub RA, BASE, #8			// Results start at BASE-8.
+  |  ldr PC, [BASE, FRAME_PC]		// Fetch PC of previous frame.
+  |   add DISPATCH, DISPATCH, #GG_G2DISP
+  |   mv_vmstate CARG2, INTERP
+  |    str CARG1, [BASE, #-4]		// Prepend false to error message.
+  |   st_vmstate CARG2
+  |  b ->vm_returnc
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  // CARG1 = L
+  |  mov CARG2, #LUA_MINSTACK
+  |  b >2
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  add RC, BASE, RC
+  |   sub RA, RA, BASE
+  |    mov CARG1, L
+  |  str BASE, L->base
+  |   add PC, PC, #4			// Must point after first instruction.
+  |  str RC, L->top
+  |   lsr CARG3, RA, #3
+  |2:
+  |  // L->base = new base, L->top = top
+  |  str PC, SAVE_PC
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->base
+  |   ldr RC, L->top
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   sub NARGS8:RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mov L, CARG1
+  |    ldr DISPATCH, L:CARG1->glref	// Setup pointer to dispatch table.
+  |  mov BASE, CARG2
+  |    add DISPATCH, DISPATCH, #GG_G2DISP
+  |   str L, SAVE_L
+  |  mov PC, #FRAME_CP
+  |   str CARG3, SAVE_NRES
+  |    add CARG2, sp, #CFRAME_RESUME
+  |  ldrb CARG1, L->status
+  |   str CARG3, SAVE_ERRF
+  |    str CARG2, L->cframe
+  |   str CARG3, SAVE_CFRAME
+  |  cmp CARG1, #0
+  |   str L, SAVE_PC			// Any value outside of bytecode is ok.
+  |  beq >3
+  |
+  |  // Resume after yield (like a return).
+  |  mov RA, BASE
+  |   ldr BASE, L->base
+  |   ldr CARG1, L->top
+  |    mov MASKR8, #255
+  |     strb CARG3, L->status
+  |   sub RC, CARG1, BASE
+  |  ldr PC, [BASE, FRAME_PC]
+  |    lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |     mv_vmstate CARG2, INTERP
+  |   add RC, RC, #8
+  |  ands CARG1, PC, #FRAME_TYPE
+  |     st_vmstate CARG2
+  |   str RC, SAVE_MULTRES
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  mov PC, #FRAME_CP
+  |  str CARG4, SAVE_ERRF
+  |  b >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  mov PC, #FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  ldr RC, L:CARG1->cframe
+  |   str CARG3, SAVE_NRES
+  |    mov L, CARG1
+  |   str CARG1, SAVE_L
+  |    mov BASE, CARG2
+  |  str sp, L->cframe			// Add our C frame to cframe chain.
+  |    ldr DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   str CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  str RC, SAVE_CFRAME
+  |    add DISPATCH, DISPATCH, #GG_G2DISP
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  ldr RB, L->base			// RB = old base (for vmeta_call).
+  |   ldr CARG1, L->top
+  |    mov MASKR8, #255
+  |  add PC, PC, BASE
+  |    lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |  sub PC, PC, RB			// PC = frame delta + frame type
+  |    mv_vmstate CARG2, INTERP
+  |   sub NARGS8:RC, CARG1, BASE
+  |    st_vmstate CARG2
+  |
+  |->vm_call_dispatch:
+  |  // RB = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  ldrd CARG34, [BASE, FRAME_FUNC]
+  |  checkfunc CARG4, ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, CARG3 = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mov L, CARG1
+  |   ldr RA, L:CARG1->stack
+  |  str CARG1, SAVE_L
+  |   ldr RB, L->top
+  |  str CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |  ldr RC, L->cframe
+  |   sub RA, RA, RB			// Compute -savestack(L, L->top).
+  |  str sp, L->cframe			// Add our C frame to cframe chain.
+  |  mov RB, #0
+  |   str RA, SAVE_NRES			// Neg. delta means cframe w/o frame.
+  |  str RB, SAVE_ERRF			// No error function.
+  |  str RC, SAVE_CFRAME
+  |  blx CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |   ldr DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  movs BASE, CRET1
+  |    mov PC, #FRAME_CP
+  |   add DISPATCH, DISPATCH, #GG_G2DISP
+  |  bne <3				// Else continue with the call.
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RC = (nresults+1)*8
+  |  ldr LFUNC:CARG3, [RB, FRAME_FUNC]
+  |    ldr CARG1, [BASE, #-16]		// Get continuation.
+  |   mov CARG4, BASE
+  |   mov BASE, RB			// Restore caller BASE.
+  |.if FFI
+  |    cmp CARG1, #1
+  |.endif
+  |   ldr PC, [CARG4, #-12]		// Restore PC from [cont|PC].
+  |  ldr CARG3, LFUNC:CARG3->field_pc
+  |    mvn INS, #~LJ_TNIL
+  |    add CARG2, RA, RC
+  |    str INS, [CARG2, #-4]		// Ensure one valid arg.
+  |.if FFI
+  |    bls >1
+  |.endif
+  |  ldr KBASE, [CARG3, #PC2PROTO(k)]
+  |  // BASE = base, RA = resultptr, CARG4 = meta base
+  |    bx CARG1
+  |
+  |.if FFI
+  |1:
+  |  beq ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |  ldr CARG3, [BASE, FRAME_FUNC]
+  |   sub CARG4, CARG4, #16
+  |   sub RC, CARG4, BASE
+  |  b ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, CARG4 = meta base
+  |  ldr INS, [PC, #-4]
+  |   sub CARG2, CARG4, #16
+  |   ldrd CARG34, [RA]
+  |     str BASE, L->base
+  |  decode_RB8 RC, INS
+  |   decode_RA8 RA, INS
+  |  add CARG1, BASE, RC
+  |  subs CARG1, CARG2, CARG1
+  |   strdne CARG34, [CARG2]
+  |   movne CARG3, CARG1
+  |  bne ->BC_CAT_Z
+  |   strd CARG34, [BASE, RA]
+  |  b ->cont_nop
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  add CARG2, BASE, RB
+  |  b >2
+  |
+  |->vmeta_tgets:
+  |  sub CARG2, DISPATCH, #-DISPATCH_GL(tmptv)
+  |   mvn CARG4, #~LJ_TTAB
+  |  str TAB:RB, [CARG2]
+  |   str CARG4, [CARG2, #4]
+  |2:
+  |   mvn CARG4, #~LJ_TSTR
+  |  str STR:RC, TMPDlo
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tgetb:			// RC = index
+  |  decode_RB8 RB, INS
+  |   str RC, TMPDlo
+  |   mvn CARG4, #~LJ_TISNUM
+  |  add CARG2, BASE, RB
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tgetv:
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |  beq >3
+  |  ldrd CARG34, [CRET1]
+  |   ins_next1
+  |   ins_next2
+  |  strd CARG34, [BASE, RA]
+  |   ins_next3
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |   rsb CARG1, BASE, #FRAME_CONT
+  |  ldr BASE, L->top
+  |    mov NARGS8:RC, #16		// 2 args for func(t, k).
+  |    str PC, [BASE, #-12]		// [cont|PC]
+  |   add PC, CARG1, BASE
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |  b ->vm_call_dispatch_f
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  add CARG2, BASE, RB
+  |  b >2
+  |
+  |->vmeta_tsets:
+  |  sub CARG2, DISPATCH, #-DISPATCH_GL(tmptv)
+  |   mvn CARG4, #~LJ_TTAB
+  |  str TAB:RB, [CARG2]
+  |   str CARG4, [CARG2, #4]
+  |2:
+  |   mvn CARG4, #~LJ_TSTR
+  |  str STR:RC, TMPDlo
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tsetb:			// RC = index
+  |  decode_RB8 RB, INS
+  |   str RC, TMPDlo
+  |   mvn CARG4, #~LJ_TISNUM
+  |  add CARG2, BASE, RB
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tsetv:
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |   ldrd CARG34, [BASE, RA]
+  |  beq >3
+  |   ins_next1
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  strd CARG34, [CRET1]
+  |   ins_next2
+  |   ins_next3
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |   rsb CARG1, BASE, #FRAME_CONT
+  |  ldr BASE, L->top
+  |    mov NARGS8:RC, #24		// 3 args for func(t, k, v).
+  |   strd CARG34, [BASE, #16]		// Copy value to third argument.
+  |    str PC, [BASE, #-12]		// [cont|PC]
+  |   add PC, CARG1, BASE
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |  b ->vm_call_dispatch_f
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  mov CARG1, L
+  |   sub PC, PC, #4
+  |  mov CARG2, RA
+  |   str BASE, L->base
+  |  mov CARG3, RC
+  |   str PC, SAVE_PC
+  |  decode_OP CARG4, INS
+  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #1
+  |  bhi ->vmeta_binop
+  |4:
+  |  ldrh RB, [PC, #2]
+  |   add PC, PC, #4
+  |  add RB, PC, RB, lsl #2
+  |  subhs PC, RB, #0x20000
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  ldr INS, [PC, #-4]
+  |   ldrd CARG12, [RA]
+  |  decode_RA8 CARG3, INS
+  |   strd CARG12, [BASE, CARG3]
+  |  b ->cont_nop
+  |
+  |->cont_condt:			// RA = resultptr
+  |  ldr CARG2, [RA, #4]
+  |   mvn CARG1, #~LJ_TTRUE
+  |  cmp CARG1, CARG2			// Branch if result is true.
+  |  b <4
+  |
+  |->cont_condf:			// RA = resultptr
+  |  ldr CARG2, [RA, #4]
+  |  checktp CARG2, LJ_TFALSE		// Branch if result is false.
+  |  b <4
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |   mov CARG2, INS
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_equal_cd		// (lua_State *L, BCIns op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.endif
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vn:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG3, BASE, RB
+  |   add CARG4, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_nv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG4, BASE, RB
+  |   add CARG3, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_unm:
+  |  ldr INS, [PC, #-8]
+  |   sub PC, PC, #4
+  |  add CARG3, BASE, RC
+  |  add CARG4, BASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_vv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG3, BASE, RB
+  |   add CARG4, BASE, RC
+  |1:
+  |  decode_OP OP, INS
+  |   add CARG2, BASE, RA
+  |    str BASE, L->base
+  |   mov CARG1, L
+  |    str PC, SAVE_PC
+  |  str OP, ARG5
+  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |  beq ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  sub CARG2, CRET1, BASE
+  |   str PC, [CRET1, #-12]		// [cont|PC]
+  |  add PC, CARG2, #FRAME_CONT
+  |   mov BASE, CRET1
+  |    mov NARGS8:RC, #16		// 2 args for func(o1, o2).
+  |  b ->vm_call_dispatch
+  |
+  |->vmeta_len:
+  |  add CARG2, BASE, RC
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+  |  .IOS ldr BASE, L->base
+#if LJ_52
+  |  cmp CRET1, #0
+  |  bne ->vmeta_binop			// Binop call for compatibility.
+  |  ldr TAB:CARG1, [BASE, RC]
+  |  b ->BC_LEN_Z
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // RB = old base, BASE = new base, RC = nargs*8
+  |  mov CARG1, L
+  |   str RB, L->base			// This is the callers base!
+  |  sub CARG2, BASE, #8
+  |   str PC, SAVE_PC
+  |  add CARG3, BASE, NARGS8:RC
+  |  .IOS mov RA, BASE
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  .IOS mov BASE, RA
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |   add NARGS8:RC, NARGS8:RC, #8	// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  sub CARG2, RA, #8
+  |   str PC, SAVE_PC
+  |  add CARG3, RA, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  .IOS ldr BASE, L->base
+  |  ldr LFUNC:CARG3, [RA, FRAME_FUNC]  // Guaranteed to be a function here.
+  |   ldr PC, [BASE, FRAME_PC]
+  |    add NARGS8:RC, NARGS8:RC, #8	// Got one more argument now.
+  |  b ->BC_CALLT2_Z
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, RA
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
+  |  .IOS ldr BASE, L->base
+  |.if JIT
+  |   ldrb OP, [PC, #-4]
+  |.endif
+  |  ldr INS, [PC, #-4]
+  |.if JIT
+  |   cmp OP, #BC_JFORI
+  |.endif
+  |  decode_RA8 RA, INS
+  |  decode_RD RC, INS
+  |.if JIT
+  |   beq =>BC_JFORI
+  |.endif
+  |  b =>BC_FORI
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  ldrd CARG12, [BASE]
+  |   ldrd CARG34, [BASE, #8]
+  |    cmp NARGS8:RC, #16
+  |    blo ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |  .ffunc_1 name
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |  .ffunc_2 name
+  |  checktp CARG2, LJ_TISNUM
+  |  cmnlo CARG4, #-LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_d, name
+  |  .ffunc name
+  |  ldr CARG2, [BASE, #4]
+  |   cmp NARGS8:RC, #8
+  |  vldr d0, [BASE]
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_dd, name
+  |  .ffunc name
+  |  ldr CARG2, [BASE, #4]
+  |  ldr CARG4, [BASE, #12]
+  |   cmp NARGS8:RC, #16
+  |  vldr d0, [BASE]
+  |  vldr d1, [BASE, #8]
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  cmnlo CARG4, #-LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses CARG1 and CARG2.
+  |.macro ffgccheck
+  |  ldr CARG1, [DISPATCH, #DISPATCH_GL(gc.total)]
+  |  ldr CARG2, [DISPATCH, #DISPATCH_GL(gc.threshold)]
+  |  cmp CARG1, CARG2
+  |  blge ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  checktp CARG2, LJ_TTRUE
+  |  bhi ->fff_fallback
+  |   ldr PC, [BASE, FRAME_PC]
+  |  strd CARG12, [BASE, #-8]
+  |  mov RB, BASE
+  |  subs RA, NARGS8:RC, #8
+  |   add RC, NARGS8:RC, #8		// Compute (nresults+1)*8.
+  |  beq ->fff_res			// Done if exactly 1 argument.
+  |1:
+  |   ldrd CARG12, [RB, #8]
+  |  subs RA, RA, #8
+  |   strd CARG12, [RB], #8
+  |  bne <1
+  |  b ->fff_res
+  |
+  |.ffunc type
+  |  ldr CARG2, [BASE, #4]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  mvnlo CARG2, #~LJ_TISNUM
+  |  rsb CARG4, CARG2, #(int)(offsetof(GCfuncC, upvalue)>>3)-1
+  |  lsl CARG4, CARG4, #3
+  |  ldrd CARG12, [CFUNC:CARG3, CARG4]
+  |  b ->fff_restv
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  checktp CARG2, LJ_TTAB
+  |  cmnne CARG2, #-LJ_TUDATA
+  |  bne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  ldr TAB:RB, TAB:CARG1->metatable
+  |2:
+  |   mvn CARG2, #~LJ_TNIL
+  |   ldr STR:RC, [DISPATCH, #DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])]
+  |  cmp TAB:RB, #0
+  |  beq ->fff_restv
+  |  ldr CARG3, TAB:RB->hmask
+  |   ldr CARG4, STR:RC->hash
+  |    ldr NODE:INS, TAB:RB->node
+  |  and CARG3, CARG3, CARG4		// idx = str->hash & tab->hmask
+  |  add CARG3, CARG3, CARG3, lsl #1
+  |    add NODE:INS, NODE:INS, CARG3, lsl #3	// node = tab->node + idx*3*8
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  ldrd CARG34, NODE:INS->key  // STALL: early NODE:INS.
+  |   ldrd CARG12, NODE:INS->val
+  |    ldr NODE:INS, NODE:INS->next
+  |  checktp CARG4, LJ_TSTR
+  |  cmpeq CARG3, STR:RC
+  |  beq >5
+  |  cmp NODE:INS, #0
+  |  bne <3
+  |4:
+  |  mov CARG1, RB			// Use metatable as default result.
+  |  mvn CARG2, #~LJ_TTAB
+  |  b ->fff_restv
+  |5:
+  |  checktp CARG2, LJ_TNIL
+  |  bne ->fff_restv
+  |  b <4
+  |
+  |6:
+  |  checktp CARG2, LJ_TISNUM
+  |  mvnhs CARG2, CARG2
+  |  movlo CARG2, #~LJ_TISNUM
+  |  add CARG4, DISPATCH, CARG2, lsl #2
+  |  ldr TAB:RB, [CARG4, #DISPATCH_GL(gcroot[GCROOT_BASEMT])]
+  |  b <2
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  checktp CARG2, LJ_TTAB
+  |   ldreq TAB:RB, TAB:CARG1->metatable
+  |  checktpeq CARG4, LJ_TTAB
+  |    ldrbeq CARG4, TAB:CARG1->marked
+  |   cmpeq TAB:RB, #0
+  |  bne ->fff_fallback
+  |    tst CARG4, #LJ_GC_BLACK		// isblack(table)
+  |     str TAB:CARG3, TAB:CARG1->metatable
+  |    beq ->fff_restv
+  |  barrierback TAB:CARG1, CARG4, CARG3
+  |  b ->fff_restv
+  |
+  |.ffunc rawget
+  |  ldrd CARG34, [BASE]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |   mov CARG2, CARG3
+  |  checktab CARG4, ->fff_fallback
+  |   mov CARG1, L
+  |   add CARG3, BASE, #8
+  |  .IOS mov RA, BASE
+  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
+  |  // Returns cTValue *.
+  |  .IOS mov BASE, RA
+  |  ldrd CARG12, [CRET1]
+  |  b ->fff_restv
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   bne ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  bls ->fff_restv
+  |  b ->fff_fallback
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  checktp CARG2, LJ_TSTR
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq ->fff_restv
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |  ldr CARG4, [DISPATCH, #DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])]
+  |   str BASE, L->base
+  |  checktp CARG2, LJ_TISNUM
+  |  cmpls CARG4, #0
+  |   str PC, SAVE_PC			// Redundant (but a defined value).
+  |  bhi ->fff_fallback
+  |  ffgccheck
+  |  mov CARG1, L
+  |  mov CARG2, BASE
+  |  bl extern lj_str_fromnumber	// (lua_State *L, cTValue *o)
+  |  // Returns GCstr *.
+  |  ldr BASE, L->base
+  |  mvn CARG2, #~LJ_TSTR
+  |  b ->fff_restv
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |   mvn CARG4, #~LJ_TNIL
+  |  checktab CARG2, ->fff_fallback
+  |   strd CARG34, [BASE, NARGS8:RC]	// Set missing 2nd arg to nil.
+  |   ldr PC, [BASE, FRAME_PC]
+  |  mov CARG2, CARG1
+  |    str BASE, L->base		// Add frame since C call can throw.
+  |  mov CARG1, L
+  |    str BASE, L->top			// Dummy frame length is ok.
+  |  add CARG3, BASE, #8
+  |   str PC, SAVE_PC
+  |  bl extern lj_tab_next	// (lua_State *L, GCtab *t, TValue *key)
+  |  // Returns 0 at end of traversal.
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |  mvneq CRET2, #~LJ_TNIL
+  |  beq ->fff_restv			// End of traversal: return nil.
+  |  ldrd CARG12, [BASE, #8]		// Copy key and value to results.
+  |   ldrd CARG34, [BASE, #16]
+  |    mov RC, #(2+1)*8
+  |  strd CARG12, [BASE, #-8]
+  |   strd CARG34, [BASE]
+  |  b ->fff_res
+  |
+  |.ffunc_1 pairs
+  |  checktab CARG2, ->fff_fallback
+#if LJ_52
+  |  ldr TAB:RB, TAB:CARG1->metatable
+#endif
+  |   ldrd CFUNC:CARG34, CFUNC:CARG3->upvalue[0]
+  |    ldr PC, [BASE, FRAME_PC]
+#if LJ_52
+  |  cmp TAB:RB, #0
+  |  bne ->fff_fallback
+#endif
+  |  mvn CARG2, #~LJ_TNIL
+  |    mov RC, #(3+1)*8
+  |   strd CFUNC:CARG34, [BASE, #-8]
+  |  str CARG2, [BASE, #12]
+  |  b ->fff_res
+  |
+  |.ffunc_2 ipairs_aux
+  |  checktp CARG2, LJ_TTAB
+  |  checktpeq CARG4, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  ldr RB, TAB:CARG1->asize
+  |   ldr RC, TAB:CARG1->array
+  |  add CARG3, CARG3, #1
+  |    ldr PC, [BASE, FRAME_PC]
+  |  cmp CARG3, RB
+  |   add RC, RC, CARG3, lsl #3
+  |  strd CARG34, [BASE, #-8]
+  |   ldrdlo CARG12, [RC]
+  |   mov RC, #(0+1)*8
+  |  bhs >2				// Not in array part?
+  |1:
+  |   checktp CARG2, LJ_TNIL
+  |   movne RC, #(2+1)*8
+  |   strdne CARG12, [BASE]
+  |  b ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  ldr RB, TAB:CARG1->hmask
+  |   mov CARG2, CARG3
+  |  cmp RB, #0
+  |  beq ->fff_res
+  |  .IOS mov RA, BASE
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  .IOS mov BASE, RA
+  |  cmp CRET1, #0
+  |  beq ->fff_res
+  |  ldrd CARG12, [CRET1]
+  |  b <1
+  |
+  |.ffunc_1 ipairs
+  |  checktab CARG2, ->fff_fallback
+#if LJ_52
+  |  ldr TAB:RB, TAB:CARG1->metatable
+#endif
+  |   ldrd CFUNC:CARG34, CFUNC:CARG3->upvalue[0]
+  |    ldr PC, [BASE, FRAME_PC]
+#if LJ_52
+  |  cmp TAB:RB, #0
+  |  bne ->fff_fallback
+#endif
+  |  mov CARG1, #0
+  |  mvn CARG2, #~LJ_TISNUM
+  |    mov RC, #(3+1)*8
+  |   strd CFUNC:CARG34, [BASE, #-8]
+  |  strd CARG12, [BASE, #8]
+  |  b ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  ldrb RA, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |  tst RA, #HOOK_ACTIVE		// Remember active hook before pcall.
+  |   mov RB, BASE
+  |   add BASE, BASE, #8
+  |  moveq PC, #8+FRAME_PCALL
+  |  movne PC, #8+FRAME_PCALLH
+  |   sub NARGS8:RC, NARGS8:RC, #8
+  |  b ->vm_call_dispatch
+  |
+  |.ffunc_2 xpcall
+  |  ldrb RA, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |  checkfunc CARG4, ->fff_fallback	// Traceback must be a function.
+  |   mov RB, BASE
+  |  strd CARG12, [BASE, #8]		// Swap function and traceback.
+  |   strd CARG34, [BASE]
+  |  tst RA, #HOOK_ACTIVE		// Remember active hook before pcall.
+  |   add BASE, BASE, #16
+  |  moveq PC, #16+FRAME_PCALL
+  |  movne PC, #16+FRAME_PCALLH
+  |   sub NARGS8:RC, NARGS8:RC, #16
+  |  b ->vm_call_dispatch
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  checktp CARG2, LJ_TTHREAD
+  |  bne ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  ldr L:CARG1, CFUNC:CARG3->upvalue[0].gcr
+  |.endif
+  |   ldr PC, [BASE, FRAME_PC]
+  |     str BASE, L->base
+  |  ldr CARG2, L:CARG1->top
+  |   ldrb RA, L:CARG1->status
+  |    ldr RB, L:CARG1->base
+  |  add CARG3, CARG2, NARGS8:RC
+  |  add CARG4, CARG2, RA
+  |   str PC, SAVE_PC
+  |  cmp CARG4, RB
+  |  beq ->fff_fallback
+  |   ldr CARG4, L:CARG1->maxstack
+  |    ldr RB, L:CARG1->cframe
+  |   cmp RA, #LUA_YIELD
+  |   cmpls CARG3, CARG4
+  |    cmpls RB, #0
+  |    bhi ->fff_fallback
+  |1:
+  |.if resume
+  |  sub CARG3, CARG3, #8		// Keep resumed thread in stack for GC.
+  |  add BASE, BASE, #8
+  |  sub NARGS8:RC, NARGS8:RC, #8
+  |.endif
+  |  str CARG3, L:CARG1->top
+  |  str BASE, L->top
+  |2:  // Move args to coroutine.
+  |   ldrd CARG34, [BASE, RB]
+  |  cmp RB, NARGS8:RC
+  |   strdne CARG34, [CARG2, RB]
+  |  add RB, RB, #8
+  |  bne <2
+  |
+  |  mov CARG3, #0
+  |   mov L:RA, L:CARG1
+  |  mov CARG4, #0
+  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  // Returns thread status.
+  |4:
+  |  ldr CARG3, L:RA->base
+  |    mv_vmstate CARG2, INTERP
+  |  ldr CARG4, L:RA->top
+  |    st_vmstate CARG2
+  |   cmp CRET1, #LUA_YIELD
+  |  ldr BASE, L->base
+  |   bhi >8
+  |  subs RC, CARG4, CARG3
+  |   ldr CARG1, L->maxstack
+  |   add CARG2, BASE, RC
+  |  beq >6				// No results?
+  |  cmp CARG2, CARG1
+  |   mov RB, #0
+  |  bhi >9				// Need to grow stack?
+  |
+  |  sub CARG4, RC, #8
+  |   str CARG3, L:RA->top		// Clear coroutine stack.
+  |5:  // Move results from coroutine.
+  |   ldrd CARG12, [CARG3, RB]
+  |  cmp RB, CARG4
+  |   strd CARG12, [BASE, RB]
+  |  add RB, RB, #8
+  |  bne <5
+  |6:
+  |.if resume
+  |  mvn CARG3, #~LJ_TTRUE
+  |   add RC, RC, #16
+  |7:
+  |  str CARG3, [BASE, #-4]		// Prepend true/false to results.
+  |   sub RA, BASE, #8
+  |.else
+  |   mov RA, BASE
+  |   add RC, RC, #8
+  |.endif
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   str PC, SAVE_PC
+  |   str RC, SAVE_MULTRES
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  ldrd CARG12, [CARG4, #-8]!
+  |   mvn CARG3, #~LJ_TFALSE
+  |    mov RC, #(2+1)*8
+  |  str CARG4, L:RA->top		// Remove error from coroutine stack.
+  |  strd CARG12, [BASE]		// Copy error message.
+  |  b <7
+  |.else
+  |  mov CARG1, L
+  |  mov CARG2, L:RA
+  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |  // Never returns.
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mov CARG1, L
+  |  lsr CARG2, RC, #3
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov CRET1, #0
+  |  b <4
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  ldr CARG1, L->cframe
+  |   add CARG2, BASE, NARGS8:RC
+  |   str BASE, L->base
+  |  tst CARG1, #CFRAME_RESUME
+  |   str CARG2, L->top
+  |    mov CRET1, #LUA_YIELD
+  |   mov CARG3, #0
+  |  beq ->fff_fallback
+  |   str CARG3, L->cframe
+  |    strb CRET1, L->status
+  |  b ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.macro math_round, func
+  |  .ffunc_1 math_ .. func
+  |  checktp CARG2, LJ_TISNUM
+  |  beq ->fff_restv
+  |  bhi ->fff_fallback
+  |  // Round FP value and normalize result.
+  |  lsl CARG3, CARG2, #1
+  |  adds RB, CARG3, #0x00200000
+  |  bpl >2				// |x| < 1?
+  |  mvn CARG4, #0x3e0
+  |    subs RB, CARG4, RB, asr #21
+  |  lsl CARG4, CARG2, #11
+  |   lsl CARG3, CARG1, #11
+  |  orr CARG4, CARG4, #0x80000000
+  |   rsb INS, RB, #32
+  |  orr CARG4, CARG4, CARG1, lsr #21
+  |    bls >3				// |x| >= 2^31?
+  |   orr CARG3, CARG3, CARG4, lsl INS
+  |  lsr CARG1, CARG4, RB
+  |.if "func" == "floor"
+  |   tst CARG3, CARG2, asr #31
+  |   addne CARG1, CARG1, #1
+  |.else
+  |   bics CARG3, CARG3, CARG2, asr #31
+  |   addsne CARG1, CARG1, #1
+  |   ldrdvs CARG12, >9
+  |   bvs ->fff_restv
+  |.endif
+  |    cmp CARG2, #0
+  |    rsblt CARG1, CARG1, #0
+  |1:
+  |   mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |2:  // |x| < 1
+  |  bcs ->fff_restv			// |x| is not finite.
+  |  orr CARG3, CARG3, CARG1		// ztest = abs(hi) | lo
+  |.if "func" == "floor"
+  |  tst CARG3, CARG2, asr #31		// return (ztest & sign) == 0 ? 0 : -1
+  |  moveq CARG1, #0
+  |  mvnne CARG1, #0
+  |.else
+  |  bics CARG3, CARG3, CARG2, asr #31	// return (ztest & ~sign) == 0 ? 0 : 1
+  |  moveq CARG1, #0
+  |  movne CARG1, #1
+  |.endif
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |3:  // |x| >= 2^31. Check for x == -(2^31).
+  |  cmpeq CARG4, #0x80000000
+  |.if "func" == "floor"
+  |  cmpeq CARG3, #0
+  |.endif
+  |  bne >4
+  |  cmp CARG2, #0
+  |  movmi CARG1, #0x80000000
+  |  bmi <1
+  |4:
+  |  bl ->vm_..func.._sf
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.align 8
+  |9:
+  |  .long 0x00000000, 0x41e00000	// 2^31.
+  |
+  |.ffunc_1 math_abs
+  |  checktp CARG2, LJ_TISNUM
+  |  bhi ->fff_fallback
+  |  bicne CARG2, CARG2, #0x80000000
+  |  bne ->fff_restv
+  |  cmp CARG1, #0
+  |  rsbslt CARG1, CARG1, #0
+  |  ldrdvs CARG12, <9
+  |  // Fallthrough.
+  |
+  |->fff_restv:
+  |  // CARG12 = TValue result.
+  |  ldr PC, [BASE, FRAME_PC]
+  |  strd CARG12, [BASE, #-8]
+  |->fff_res1:
+  |  // PC = return.
+  |  mov RC, #(1+1)*8
+  |->fff_res:
+  |  // RC = (nresults+1)*8, PC = return.
+  |  ands CARG1, PC, #FRAME_TYPE
+  |  ldreq INS, [PC, #-4]
+  |   str RC, SAVE_MULTRES
+  |  sub RA, BASE, #8
+  |  bne ->vm_return
+  |  decode_RB8 RB, INS
+  |5:
+  |  cmp RB, RC				// More results expected?
+  |  bhi >6
+  |  decode_RA8 CARG1, INS
+  |   ins_next1
+  |   ins_next2
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |  sub BASE, RA, CARG1
+  |   ins_next3
+  |
+  |6:  // Fill up results with nil.
+  |  add CARG2, RA, RC
+  |  mvn CARG1, #~LJ_TNIL
+  |   add RC, RC, #8
+  |  str CARG1, [CARG2, #-4]
+  |  b <5
+  |
+  |.macro math_extern, func
+  |.if HFABI
+  |  .ffunc_d math_ .. func
+  |.else
+  |  .ffunc_n math_ .. func
+  |.endif
+  |  .IOS mov RA, BASE
+  |  bl extern func
+  |  .IOS mov BASE, RA
+  |.if HFABI
+  |  b ->fff_resd
+  |.else
+  |  b ->fff_restv
+  |.endif
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |.if HFABI
+  |  .ffunc_dd math_ .. func
+  |.else
+  |  .ffunc_nn math_ .. func
+  |.endif
+  |  .IOS mov RA, BASE
+  |  bl extern func
+  |  .IOS mov BASE, RA
+  |.if HFABI
+  |  b ->fff_resd
+  |.else
+  |  b ->fff_restv
+  |.endif
+  |.endmacro
+  |
+  |.if FPU
+  |  .ffunc_d math_sqrt
+  |  vsqrt.f64 d0, d0
+  |->fff_resd:
+  |  ldr PC, [BASE, FRAME_PC]
+  |  vstr d0, [BASE, #-8]
+  |  b ->fff_res1
+  |.else
+  |  math_extern sqrt
+  |.endif
+  |
+  |.ffunc math_log
+  |.if HFABI
+  |  ldr CARG2, [BASE, #4]
+  |   cmp NARGS8:RC, #8			// Need exactly 1 argument.
+  |  vldr d0, [BASE]
+  |   bne ->fff_fallback
+  |.else
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8			// Need exactly 1 argument.
+  |   bne ->fff_fallback
+  |.endif
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern log
+  |  .IOS mov BASE, RA
+  |.if HFABI
+  |  b ->fff_resd
+  |.else
+  |  b ->fff_restv
+  |.endif
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |->ff_math_deg:
+  |.if FPU
+  |  .ffunc_d math_rad
+  |  vldr d1, CFUNC:CARG3->upvalue[0]
+  |  vmul.f64 d0, d0, d1
+  |  b ->fff_resd
+  |.else
+  |  .ffunc_n math_rad
+  |  ldrd CARG34, CFUNC:CARG3->upvalue[0]
+  |  bl extern __aeabi_dmul
+  |  b ->fff_restv
+  |.endif
+  |
+  |.if HFABI
+  |  .ffunc math_ldexp
+  |  ldr CARG4, [BASE, #4]
+  |  ldrd CARG12, [BASE, #8]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |  vldr d0, [BASE]
+  |  checktp CARG4, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern ldexp			// (double x, int exp)
+  |  .IOS mov BASE, RA
+  |  b ->fff_resd
+  |.else
+  |.ffunc_2 math_ldexp
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |  checktp CARG4, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern ldexp			// (double x, int exp)
+  |  .IOS mov BASE, RA
+  |  b ->fff_restv
+  |.endif
+  |
+  |.if HFABI
+  |.ffunc_d math_frexp
+  |  mov CARG1, sp
+  |  .IOS mov RA, BASE
+  |  bl extern frexp
+  |  .IOS mov BASE, RA
+  |   ldr CARG3, [sp]
+  |   mvn CARG4, #~LJ_TISNUM
+  |    ldr PC, [BASE, FRAME_PC]
+  |  vstr d0, [BASE, #-8]
+  |    mov RC, #(2+1)*8
+  |   strd CARG34, [BASE]
+  |  b ->fff_res
+  |.else
+  |.ffunc_n math_frexp
+  |  mov CARG3, sp
+  |  .IOS mov RA, BASE
+  |  bl extern frexp
+  |  .IOS mov BASE, RA
+  |   ldr CARG3, [sp]
+  |   mvn CARG4, #~LJ_TISNUM
+  |    ldr PC, [BASE, FRAME_PC]
+  |  strd CARG12, [BASE, #-8]
+  |    mov RC, #(2+1)*8
+  |   strd CARG34, [BASE]
+  |  b ->fff_res
+  |.endif
+  |
+  |.if HFABI
+  |.ffunc_d math_modf
+  |  sub CARG1, BASE, #8
+  |   ldr PC, [BASE, FRAME_PC]
+  |  .IOS mov RA, BASE
+  |  bl extern modf
+  |  .IOS mov BASE, RA
+  |   mov RC, #(2+1)*8
+  |  vstr d0, [BASE]
+  |  b ->fff_res
+  |.else
+  |.ffunc_n math_modf
+  |  sub CARG3, BASE, #8
+  |   ldr PC, [BASE, FRAME_PC]
+  |  .IOS mov RA, BASE
+  |  bl extern modf
+  |  .IOS mov BASE, RA
+  |   mov RC, #(2+1)*8
+  |  strd CARG12, [BASE]
+  |  b ->fff_res
+  |.endif
+  |
+  |.macro math_minmax, name, cond, fcond
+  |.if FPU
+  |  .ffunc_1 name
+  |   add RB, BASE, RC
+  |  checktp CARG2, LJ_TISNUM
+  |   add RA, BASE, #8
+  |  bne >4
+  |1:  // Handle integers.
+  |  ldrd CARG34, [RA]
+  |   cmp RA, RB
+  |   bhs ->fff_restv
+  |  checktp CARG4, LJ_TISNUM
+  |  bne >3
+  |  cmp CARG1, CARG3
+  |   add RA, RA, #8
+  |  mov..cond CARG1, CARG3
+  |  b <1
+  |3:  // Convert intermediate result to number and continue below.
+  |  vmov s4, CARG1
+  |  bhi ->fff_fallback
+  |  vldr d1, [RA]
+  |  vcvt.f64.s32 d0, s4
+  |  b >6
+  |
+  |4:
+  |  vldr d0, [BASE]
+  |  bhi ->fff_fallback
+  |5:  // Handle numbers.
+  |  ldrd CARG34, [RA]
+  |  vldr d1, [RA]
+  |   cmp RA, RB
+  |   bhs ->fff_resd
+  |  checktp CARG4, LJ_TISNUM
+  |  bhs >7
+  |6:
+  |  vcmp.f64 d0, d1
+  |  vmrs
+  |   add RA, RA, #8
+  |  vmov..fcond.f64 d0, d1
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |  vmov s4, CARG3
+  |  bhi ->fff_fallback
+  |  vcvt.f64.s32 d1, s4
+  |  b <6
+  |
+  |.else
+  |
+  |  .ffunc_1 name
+  |  checktp CARG2, LJ_TISNUM
+  |   mov RA, #8
+  |  bne >4
+  |1:  // Handle integers.
+  |  ldrd CARG34, [BASE, RA]
+  |   cmp RA, RC
+  |   bhs ->fff_restv
+  |  checktp CARG4, LJ_TISNUM
+  |  bne >3
+  |  cmp CARG1, CARG3
+  |   add RA, RA, #8
+  |  mov..cond CARG1, CARG3
+  |  b <1
+  |3:  // Convert intermediate result to number and continue below.
+  |  bhi ->fff_fallback
+  |  bl extern __aeabi_i2d
+  |  ldrd CARG34, [BASE, RA]
+  |  b >6
+  |
+  |4:
+  |  bhi ->fff_fallback
+  |5:  // Handle numbers.
+  |  ldrd CARG34, [BASE, RA]
+  |   cmp RA, RC
+  |   bhs ->fff_restv
+  |  checktp CARG4, LJ_TISNUM
+  |  bhs >7
+  |6:
+  |  bl extern __aeabi_cdcmple
+  |   add RA, RA, #8
+  |  mov..fcond CARG1, CARG3
+  |  mov..fcond CARG2, CARG4
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |  bhi ->fff_fallback
+  |  strd CARG12, TMPD
+  |  mov CARG1, CARG3
+  |  bl extern __aeabi_i2d
+  |  ldrd CARG34, TMPD
+  |  b <6
+  |.endif
+  |.endmacro
+  |
+  |  math_minmax math_min, gt, hi
+  |  math_minmax math_max, lt, lo
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc_1 string_len
+  |  checkstr CARG2, ->fff_fallback
+  |  ldr CARG1, STR:CARG1->len
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  ldrd CARG12, [BASE]
+  |    ldr PC, [BASE, FRAME_PC]
+  |   cmp NARGS8:RC, #8
+  |   checktpeq CARG2, LJ_TSTR		// Need exactly 1 argument.
+  |   bne ->fff_fallback
+  |  ldr CARG3, STR:CARG1->len
+  |   ldrb CARG1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |   mvn CARG2, #~LJ_TISNUM
+  |  cmp CARG3, #0
+  |  moveq RC, #(0+1)*8
+  |  movne RC, #(1+1)*8
+  |   strd CARG12, [BASE, #-8]
+  |  b ->fff_res
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |    ldr PC, [BASE, FRAME_PC]
+  |   cmp NARGS8:RC, #8			// Need exactly 1 argument.
+  |   checktpeq CARG2, LJ_TISNUM
+  |   bicseq CARG4, CARG1, #255
+  |  mov CARG3, #1
+  |   bne ->fff_fallback
+  |  str CARG1, TMPD
+  |  mov CARG2, TMPDp			// Points to stack. Little-endian.
+  |->fff_newstr:
+  |  // CARG2 = str, CARG3 = len.
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |  // Returns GCstr *.
+  |  ldr BASE, L->base
+  |   mvn CARG2, #~LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |   ldrd CARG34, [BASE, #16]
+  |    cmp NARGS8:RC, #16
+  |     mvn RB, #0
+  |    beq >1
+  |    blo ->fff_fallback
+  |   checktp CARG4, LJ_TISNUM
+  |    mov RB, CARG3
+  |   bne ->fff_fallback
+  |1:
+  |  ldrd CARG34, [BASE, #8]
+  |  checktp CARG2, LJ_TSTR
+  |   ldreq CARG2, STR:CARG1->len
+  |  checktpeq CARG4, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  // CARG1 = str, CARG2 = str->len, CARG3 = start, RB = end
+  |  add CARG4, CARG2, #1
+  |  cmp CARG3, #0			// if (start < 0) start += len+1
+  |  addlt CARG3, CARG3, CARG4
+  |  cmp CARG3, #1			// if (start < 1) start = 1
+  |  movlt CARG3, #1
+  |  cmp RB, #0				// if (end < 0) end += len+1
+  |  addlt RB, RB, CARG4
+  |  bic RB, RB, RB, asr #31		// if (end < 0) end = 0
+  |  cmp RB, CARG2			// if (end > len) end = len
+  |   add CARG1, STR:CARG1, #sizeof(GCstr)-1
+  |  movgt RB, CARG2
+  |   add CARG2, CARG1, CARG3
+  |  subs CARG3, RB, CARG3		// len = end - start
+  |   add CARG3, CARG3, #1		// len += 1
+  |  bge ->fff_newstr
+  |->fff_emptystr:
+  |  sub STR:CARG1, DISPATCH, #-DISPATCH_GL(strempty)
+  |  mvn CARG2, #~LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.ffunc string_rep			// Only handle the 1-char case inline.
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |   ldrd CARG34, [BASE, #8]
+  |    cmp NARGS8:RC, #16
+  |    bne ->fff_fallback		// Exactly 2 arguments
+  |  checktp CARG2, LJ_TSTR
+  |   checktpeq CARG4, LJ_TISNUM
+  |   bne ->fff_fallback
+  |  subs CARG4, CARG3, #1
+  |   ldr CARG2, STR:CARG1->len
+  |  blt ->fff_emptystr			// Count <= 0?
+  |   cmp CARG2, #1
+  |   blo ->fff_emptystr		// Zero-length string?
+  |   bne ->fff_fallback		// Fallback for > 1-char strings.
+  |  ldr RB, [DISPATCH, #DISPATCH_GL(tmpbuf.sz)]
+  |   ldr CARG2, [DISPATCH, #DISPATCH_GL(tmpbuf.buf)]
+  |   ldr CARG1, STR:CARG1[1]
+  |  cmp RB, CARG3
+  |  blo ->fff_fallback
+  |1:  // Fill buffer with char.
+  |   strb CARG1, [CARG2, CARG4]
+  |  subs CARG4, CARG4, #1
+  |  bge <1
+  |  b ->fff_newstr
+  |
+  |.ffunc string_reverse
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |  checkstr CARG2, ->fff_fallback
+  |  ldr CARG3, STR:CARG1->len
+  |   ldr RB, [DISPATCH, #DISPATCH_GL(tmpbuf.sz)]
+  |    ldr CARG2, [DISPATCH, #DISPATCH_GL(tmpbuf.buf)]
+  |  mov CARG4, CARG3
+  |  add CARG1, STR:CARG1, #sizeof(GCstr)
+  |   cmp RB, CARG3
+  |   blo ->fff_fallback
+  |1:  // Reverse string copy.
+  |  ldrb RB, [CARG1], #1
+  |   subs CARG4, CARG4, #1
+  |   blt ->fff_newstr
+  |  strb RB, [CARG2, CARG4]
+  |  b <1
+  |
+  |.macro ffstring_case, name, lo
+  |  .ffunc name
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |  checkstr CARG2, ->fff_fallback
+  |  ldr CARG3, STR:CARG1->len
+  |   ldr RB, [DISPATCH, #DISPATCH_GL(tmpbuf.sz)]
+  |    ldr CARG2, [DISPATCH, #DISPATCH_GL(tmpbuf.buf)]
+  |  mov CARG4, #0
+  |  add CARG1, STR:CARG1, #sizeof(GCstr)
+  |   cmp RB, CARG3
+  |   blo ->fff_fallback
+  |1:  // ASCII case conversion.
+  |  ldrb RB, [CARG1, CARG4]
+  |   cmp CARG4, CARG3
+  |   bhs ->fff_newstr
+  |  sub RC, RB, #lo
+  |  cmp RC, #26
+  |  eorlo RB, RB, #0x20
+  |  strb RB, [CARG2, CARG4]
+  |   add CARG4, CARG4, #1
+  |  b <1
+  |.endmacro
+  |
+  |ffstring_case string_lower, 65
+  |ffstring_case string_upper, 97
+  |
+  |//-- Table library ------------------------------------------------------
+  |
+  |.ffunc_1 table_getn
+  |  checktab CARG2, ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern lj_tab_len		// (GCtab *t)
+  |  // Returns uint32_t (but less than 2^31).
+  |  .IOS mov BASE, RA
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |// FP number to bit conversion for soft-float. Clobbers r0-r3.
+  |->vm_tobit_fb:
+  |  bhi ->fff_fallback
+  |->vm_tobit:
+  |  lsl RB, CARG2, #1
+  |  adds RB, RB, #0x00200000
+  |  movpl CARG1, #0			// |x| < 1?
+  |  bxpl lr
+  |  mvn CARG4, #0x3e0
+  |  subs RB, CARG4, RB, asr #21
+  |  bmi >1				// |x| >= 2^32?
+  |  lsl CARG4, CARG2, #11
+  |  orr CARG4, CARG4, #0x80000000
+  |  orr CARG4, CARG4, CARG1, lsr #21
+  |   cmp CARG2, #0
+  |  lsr CARG1, CARG4, RB
+  |   rsblt CARG1, CARG1, #0
+  |  bx lr
+  |1:
+  |  add RB, RB, #21
+  |  lsr CARG4, CARG1, RB
+  |  rsb RB, RB, #20
+  |  lsl CARG1, CARG2, #12
+  |   cmp CARG2, #0
+  |  orr CARG1, CARG4, CARG1, lsl RB
+  |   rsblt CARG1, CARG1, #0
+  |  bx lr
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_1 bit_..name
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |.endmacro
+  |
+  |.ffunc_bit tobit
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  mov CARG3, CARG1
+  |  mov RA, #8
+  |1:
+  |  ldrd CARG12, [BASE, RA]
+  |   cmp RA, NARGS8:RC
+  |    add RA, RA, #8
+  |   bge >2
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |  ins CARG3, CARG3, CARG1
+  |  b <1
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, orr
+  |.ffunc_bit_op bxor, eor
+  |
+  |2:
+  |  mvn CARG4, #~LJ_TISNUM
+  |   ldr PC, [BASE, FRAME_PC]
+  |  strd CARG34, [BASE, #-8]
+  |  b ->fff_res1
+  |
+  |.ffunc_bit bswap
+  |  eor CARG3, CARG1, CARG1, ror #16
+  |  bic CARG3, CARG3, #0x00ff0000
+  |  ror CARG1, CARG1, #8
+  |   mvn CARG2, #~LJ_TISNUM
+  |  eor CARG1, CARG1, CARG3, lsr #8
+  |  b ->fff_restv
+  |
+  |.ffunc_bit bnot
+  |  mvn CARG1, CARG1
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |  .ffunc bit_..name
+  |  ldrd CARG12, [BASE, #8]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |.if shmod == 0
+  |  and RA, CARG1, #31
+  |.else
+  |  rsb RA, CARG1, #0
+  |.endif
+  |  ldrd CARG12, [BASE]
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |  ins CARG1, CARG1, RA
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, lsl, 0
+  |.ffunc_bit_sh rshift, lsr, 0
+  |.ffunc_bit_sh arshift, asr, 0
+  |.ffunc_bit_sh rol, ror, 1
+  |.ffunc_bit_sh ror, ror, 0
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RC = nargs*8
+  |   ldr CARG3, [BASE, FRAME_FUNC]
+  |  ldr CARG2, L->maxstack
+  |  add CARG1, BASE, NARGS8:RC
+  |    ldr PC, [BASE, FRAME_PC]		// Fallback may overwrite PC.
+  |  str CARG1, L->top
+  |   ldr CARG3, CFUNC:CARG3->f
+  |    str BASE, L->base
+  |  add CARG1, CARG1, #8*LUA_MINSTACK
+  |    str PC, SAVE_PC			// Redundant (but a defined value).
+  |  cmp CARG1, CARG2
+  |   mov CARG1, L
+  |  bhi >5				// Need to grow stack.
+  |   blx CARG3				// (lua_State *L)
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |   ldr BASE, L->base
+  |  cmp CRET1, #0
+  |   lsl RC, CRET1, #3
+  |   sub RA, BASE, #8
+  |  bgt ->fff_res			// Returned nresults+1?
+  |1:  // Returned 0 or -1: retry fast path.
+  |   ldr CARG1, L->top
+  |    ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   sub NARGS8:RC, CARG1, BASE
+  |  bne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   bic CARG2, PC, #FRAME_TYPEP
+  |  ldreq INS, [PC, #-4]
+  |  andeq CARG2, MASKR8, INS, lsr #5	// Conditional decode_RA8.
+  |  addeq CARG2, CARG2, #8
+  |  sub RB, BASE, CARG2
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  mov CARG2, #LUA_MINSTACK
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->base
+  |  cmp CARG1, CARG1			// Set zero-flag to force retry.
+  |  b <1
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  mov RA, lr
+  |   str BASE, L->base
+  |  add CARG2, BASE, NARGS8:RC
+  |   str PC, SAVE_PC			// Redundant (but a defined value).
+  |  str CARG2, L->top
+  |  mov CARG1, L
+  |  bl extern lj_gc_step		// (lua_State *L)
+  |   ldr BASE, L->base
+  |  mov lr, RA				// Help return address predictor.
+  |   ldr CFUNC:CARG3, [BASE, FRAME_FUNC]
+  |  bx lr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  ldrb CARG1, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |  tst CARG1, #HOOK_VMEVENT		// No recording while in vmevent.
+  |  bne >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |   ldr CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |  tst CARG1, #HOOK_ACTIVE
+  |  bne >1
+  |   sub CARG2, CARG2, #1
+  |  tst CARG1, #LUA_MASKLINE|LUA_MASKCOUNT
+  |   strne CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |  b >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  ldrb CARG1, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |  tst CARG1, #HOOK_ACTIVE		// Hook already active?
+  |  beq >1
+  |5:  // Re-dispatch to static ins.
+  |  decode_OP OP, INS
+  |  add OP, DISPATCH, OP, lsl #2
+  |  ldr pc, [OP, #GG_DISP2STATIC]
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  ldrb CARG1, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |   ldr CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |  tst CARG1, #HOOK_ACTIVE		// Hook already active?
+  |  bne <5
+  |  tst CARG1, #LUA_MASKLINE|LUA_MASKCOUNT
+  |  beq <5
+  |   subs CARG2, CARG2, #1
+  |   str CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |   beq >1
+  |  tst CARG1, #LUA_MASKLINE
+  |  beq <5
+  |1:
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, PC
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
+  |3:
+  |  ldr BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  ldrb OP, [PC, #-4]
+  |   ldr INS, [PC, #-4]
+  |  add OP, DISPATCH, OP, lsl #2
+  |  ldr OP, [OP, #GG_DISP2STATIC]
+  |   decode_RA8 RA, INS
+  |   decode_RD RC, INS
+  |  bx OP
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  ldr CARG1, [CARG4, #-24]
+  |   add PC, PC, #4
+  |  str CARG1, SAVE_MULTRES		// Restore MULTRES for *M ins.
+  |  b <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Same as curr_topL(L).
+  |   sub CARG1, DISPATCH, #-GG_DISP2J
+  |   str PC, SAVE_PC
+  |  ldr CARG3, LFUNC:CARG3->field_pc
+  |   mov CARG2, PC
+  |   str L, [DISPATCH, #DISPATCH_J(L)]
+  |  ldrb CARG3, [CARG3, #PC2PROTO(framesize)]
+  |   str BASE, L->base
+  |  add CARG3, BASE, CARG3, lsl #3
+  |  str CARG3, L->top
+  |  bl extern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |  b <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mov CARG2, PC
+  |.if JIT
+  |  b >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  orr CARG2, PC, #1
+  |1:
+  |.endif
+  |  add CARG4, BASE, RC
+  |   str PC, SAVE_PC
+  |    mov CARG1, L
+  |   str BASE, L->base
+  |    sub RA, RA, BASE
+  |  str CARG4, L->top
+  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
+  |  // Returns ASMFunction.
+  |  ldr BASE, L->base
+  |   ldr CARG4, L->top
+  |    mov CARG2, #0
+  |  add RA, BASE, RA
+  |   sub NARGS8:RC, CARG4, BASE
+  |    str CARG2, SAVE_PC		// Invalidate for subsequent line hook.
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   ldr INS, [PC, #-4]
+  |  bx CRET1
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  sub sp, sp, #12
+  |  push {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12}
+  |  ldr CARG1, [sp, #64]	// Load original value of lr.
+  |   ldr DISPATCH, [lr]	// Load DISPATCH.
+  |    add CARG3, sp, #64	// Recompute original value of sp.
+  |   mv_vmstate CARG4, EXIT
+  |    str CARG3, [sp, #52]	// Store sp in RID_SP
+  |   st_vmstate CARG4
+  |  ldr CARG2, [CARG1, #-4]!	// Get exit instruction.
+  |   str CARG1, [sp, #56]	// Store exit pc in RID_LR and RID_PC.
+  |   str CARG1, [sp, #60]
+  |.if FPU
+  |  vpush {d0-d15}
+  |.endif
+  |  lsl CARG2, CARG2, #8
+  |  add CARG1, CARG1, CARG2, asr #6
+  |   ldr CARG2, [lr, #4]	// Load exit stub group offset.
+  |   sub CARG1, CARG1, lr
+  |  ldr L, [DISPATCH, #DISPATCH_GL(jit_L)]
+  |   add CARG1, CARG2, CARG1, lsr #2	// Compute exit number.
+  |    ldr BASE, [DISPATCH, #DISPATCH_GL(jit_base)]
+  |   str CARG1, [DISPATCH, #DISPATCH_J(exitno)]
+  |   mov CARG4, #0
+  |  str L, [DISPATCH, #DISPATCH_J(L)]
+  |    str BASE, L->base
+  |   str CARG4, [DISPATCH, #DISPATCH_GL(jit_L)]
+  |  sub CARG1, DISPATCH, #-GG_DISP2J
+  |  mov CARG2, sp
+  |  bl extern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  ldr CARG2, L->cframe
+  |   ldr BASE, L->base
+  |  bic CARG2, CARG2, #~CFRAME_RAWMASK	// Use two steps: bic sp is deprecated.
+  |  mov sp, CARG2
+  |   ldr PC, SAVE_PC			// Get SAVE_PC.
+  |  str L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |  b >1
+  |.endif
+  |->vm_exit_interp:
+  |  // CARG1 = MULTRES or negated error code, BASE, PC and DISPATCH set.
+  |.if JIT
+  |  ldr L, SAVE_L
+  |1:
+  |  cmp CARG1, #0
+  |  blt >3				// Check for error from exit.
+  |   lsl RC, CARG1, #3
+  |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+  |   str RC, SAVE_MULTRES
+  |   mov CARG3, #0
+  |  ldr CARG2, LFUNC:CARG2->field_pc
+  |   str CARG3, [DISPATCH, #DISPATCH_GL(jit_L)]
+  |    mv_vmstate CARG4, INTERP
+  |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  ldrb OP, [PC]
+  |     mov MASKR8, #255
+  |   ldr INS, [PC], #4
+  |     lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |    st_vmstate CARG4
+  |  cmp OP, #BC_FUNCF			// Function header?
+  |  ldr OP, [DISPATCH, OP, lsl #2]
+  |   decode_RA8 RA, INS
+  |   lsrlo RC, INS, #16	// No: Decode operands A*8 and D.
+  |   subhs RC, RC, #8
+  |   addhs RA, RA, BASE	// Yes: RA = BASE+framesize*8, RC = nargs*8
+  |  bx OP
+  |
+  |3:  // Rethrow error from the right C frame.
+  |  rsb CARG2, CARG1, #0
+  |  mov CARG1, L
+  |  bl extern lj_err_throw		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// FP value rounding. Called from JIT code.
+  |//
+  |// double lj_vm_floor/ceil/trunc(double x);
+  |.macro vm_round, func, hf
+  |.if hf == 1
+  |  vmov CARG1, CARG2, d0
+  |.endif
+  |  lsl CARG3, CARG2, #1
+  |  adds RB, CARG3, #0x00200000
+  |  bpl >2				// |x| < 1?
+  |  mvn CARG4, #0x3cc
+  |  subs RB, CARG4, RB, asr #21	// 2^0: RB = 51, 2^51: RB = 0.
+  |  bxlo lr				// |x| >= 2^52: done.
+  |  mvn CARG4, #1
+  |   bic CARG3, CARG1, CARG4, lsl RB	// ztest = lo & ~lomask
+  |  and CARG1, CARG1, CARG4, lsl RB	// lo &= lomask
+  |  subs RB, RB, #32
+  |   bicpl CARG4, CARG2, CARG4, lsl RB	// |x| <= 2^20: ztest |= hi & ~himask
+  |   orrpl CARG3, CARG3, CARG4
+  |   mvnpl CARG4, #1
+  |  andpl CARG2, CARG2, CARG4, lsl RB	// |x| <= 2^20: hi &= himask
+  |.if "func" == "floor"
+  |   tst CARG3, CARG2, asr #31		// iszero = ((ztest & signmask) == 0)
+  |.else
+  |   bics CARG3, CARG3, CARG2, asr #31	// iszero = ((ztest & ~signmask) == 0)
+  |.endif
+  |.if hf == 1
+  |  vmoveq d0, CARG1, CARG2
+  |.endif
+  |  bxeq lr				// iszero: done.
+  |  mvn CARG4, #1
+  |  cmp RB, #0
+  |  lslpl CARG3, CARG4, RB
+  |  mvnmi CARG3, #0
+  |  add RB, RB, #32
+  |  subs CARG1, CARG1, CARG4, lsl RB	// lo = lo-lomask
+  |  sbc CARG2, CARG2, CARG3		// hi = hi-himask+carry
+  |.if hf == 1
+  |  vmov d0, CARG1, CARG2
+  |.endif
+  |  bx lr
+  |
+  |2:  // |x| < 1:
+  |  bxcs lr				// |x| is not finite.
+  |  orr CARG3, CARG3, CARG1		// ztest = (2*hi) | lo
+  |.if "func" == "floor"
+  |  tst CARG3, CARG2, asr #31		// iszero = ((ztest & signmask) == 0)
+  |.else
+  |  bics CARG3, CARG3, CARG2, asr #31	// iszero = ((ztest & ~signmask) == 0)
+  |.endif
+  |  mov CARG1, #0			// lo = 0
+  |  and CARG2, CARG2, #0x80000000
+  |  ldrne CARG4, <9			// hi = sign(x) | (iszero ? 0.0 : 1.0)
+  |  orrne CARG2, CARG2, CARG4
+  |.if hf == 1
+  |  vmov d0, CARG1, CARG2
+  |.endif
+  |  bx lr
+  |.endmacro
+  |
+  |9:
+  |  .long 0x3ff00000			// hiword(+1.0)
+  |
+  |->vm_floor:
+  |.if HFABI
+  |  vm_round floor, 1
+  |.endif
+  |->vm_floor_sf:
+  |  vm_round floor, 0
+  |
+  |->vm_ceil:
+  |.if HFABI
+  |  vm_round ceil, 1
+  |.endif
+  |->vm_ceil_sf:
+  |  vm_round ceil, 0
+  |
+  |.macro vm_trunc, hf
+  |.if JIT
+  |.if hf == 1
+  |  vmov CARG1, CARG2, d0
+  |.endif
+  |  lsl CARG3, CARG2, #1
+  |  adds RB, CARG3, #0x00200000
+  |  andpl CARG2, CARG2, #0x80000000	// |x| < 1? hi = sign(x), lo = 0.
+  |  movpl CARG1, #0
+  |.if hf == 1
+  |  vmovpl d0, CARG1, CARG2
+  |.endif
+  |  bxpl lr
+  |  mvn CARG4, #0x3cc
+  |  subs RB, CARG4, RB, asr #21	// 2^0: RB = 51, 2^51: RB = 0.
+  |  bxlo lr				// |x| >= 2^52: already done.
+  |  mvn CARG4, #1
+  |  and CARG1, CARG1, CARG4, lsl RB	// lo &= lomask
+  |  subs RB, RB, #32
+  |  andpl CARG2, CARG2, CARG4, lsl RB	// |x| <= 2^20: hi &= himask
+  |.if hf == 1
+  |  vmov d0, CARG1, CARG2
+  |.endif
+  |  bx lr
+  |.endif
+  |.endmacro
+  |
+  |->vm_trunc:
+  |.if HFABI
+  |  vm_trunc 1
+  |.endif
+  |->vm_trunc_sf:
+  |  vm_trunc 0
+  |
+  |  // double lj_vm_mod(double dividend, double divisor);
+  |->vm_mod:
+  |.if FPU
+  |  // Special calling convention. Also, RC (r11) is not preserved.
+  |  vdiv.f64 d0, d6, d7
+  |   mov RC, lr
+  |  vmov CARG1, CARG2, d0
+  |  bl ->vm_floor_sf
+  |  vmov d0, CARG1, CARG2
+  |  vmul.f64 d0, d0, d7
+  |   mov lr, RC
+  |  vsub.f64 d6, d6, d0
+  |  bx lr
+  |.else
+  |  push {r0, r1, r2, r3, r4, lr}
+  |  bl extern __aeabi_ddiv
+  |  bl ->vm_floor_sf
+  |  ldrd CARG34, [sp, #8]
+  |  bl extern __aeabi_dmul
+  |  ldrd CARG34, [sp]
+  |  eor CARG2, CARG2, #0x80000000
+  |  bl extern __aeabi_dadd
+  |  add sp, sp, #20
+  |  pop {pc}
+  |.endif
+  |
+  |  // int lj_vm_modi(int dividend, int divisor);
+  |->vm_modi:
+  |  ands RB, CARG1, #0x80000000
+  |  rsbmi CARG1, CARG1, #0		// a = |dividend|
+  |  eor RB, RB, CARG2, asr #1		// Keep signdiff and sign(divisor).
+  |  cmp CARG2, #0
+  |  rsbmi CARG2, CARG2, #0		// b = |divisor|
+  |  subs CARG4, CARG2, #1
+  |  cmpne CARG1, CARG2
+  |  moveq CARG1, #0			// if (b == 1 || a == b) a = 0
+  |  tsthi CARG2, CARG4
+  |  andeq CARG1, CARG1, CARG4		// else if ((b & (b-1)) == 0) a &= b-1
+  |  bls >1
+  |  // Use repeated subtraction to get the remainder.
+  |  clz CARG3, CARG1
+  |  clz CARG4, CARG2
+  |  sub CARG4, CARG4, CARG3
+  |  rsbs CARG3, CARG4, #31		// entry = (31-(clz(b)-clz(a)))*8
+  |  addne pc, pc, CARG3, lsl #3	// Duff's device.
+  |  nop
+  {
+    int i;
+    for (i = 31; i >= 0; i--) {
+      |  cmp CARG1, CARG2, lsl #i
+      |  subhs CARG1, CARG1, CARG2, lsl #i
+    }
+  }
+  |1:
+  |  cmp CARG1, #0
+  |  cmpne RB, #0
+  |  submi CARG1, CARG1, CARG2		// if (y != 0 && signdiff) y = y - b
+  |  eors CARG2, CARG1, RB, lsl #1
+  |  rsbmi CARG1, CARG1, #0		// if (sign(divisor) != sign(y)) y = -y
+  |  bx lr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions.
+  |// Saveregs already performed. Callback slot number in [sp], g in r12.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  ldr CTSTATE, GL:r12->ctype_state
+  |   add DISPATCH, r12, #GG_G2DISP
+  |.if FPU
+  |  str r4, SAVE_R4
+  |  add r4, sp, CFRAME_SPACE+4+8*8
+  |  vstmdb r4!, {d8-d15}
+  |.endif
+  |.if HFABI
+  |  add r12, CTSTATE, #offsetof(CTState, cb.fpr[8])
+  |.endif
+  |  strd CARG34, CTSTATE->cb.gpr[2]
+  |  strd CARG12, CTSTATE->cb.gpr[0]
+  |.if HFABI
+  |  vstmdb r12!, {d0-d7}
+  |.endif
+  |  ldr CARG4, [sp]
+  |   add CARG3, sp, #CFRAME_SIZE
+  |    mov CARG1, CTSTATE
+  |  lsr CARG4, CARG4, #3
+  |   str CARG3, CTSTATE->cb.stack
+  |    mov CARG2, sp
+  |  str CARG4, CTSTATE->cb.slot
+  |  str CTSTATE, SAVE_PC		// Any value outside of bytecode is ok.
+  |  bl extern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |  // Returns lua_State *.
+  |  ldr BASE, L:CRET1->base
+  |    mv_vmstate CARG2, INTERP
+  |  ldr RC, L:CRET1->top
+  |    mov MASKR8, #255
+  |   ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |    mov L, CRET1
+  |  sub RC, RC, BASE
+  |    lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |    st_vmstate CARG2
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  ldr CTSTATE, [DISPATCH, #DISPATCH_GL(ctype_state)]
+  |   str BASE, L->base
+  |   str CARG4, L->top
+  |  str L, CTSTATE->L
+  |  mov CARG1, CTSTATE
+  |  mov CARG2, RA
+  |  bl extern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |  ldrd CARG12, CTSTATE->cb.gpr[0]
+  |.if HFABI
+  |  vldr d0, CTSTATE->cb.fpr[0]
+  |.endif
+  |  b ->vm_leave_unw
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, r4
+  |  push {CCSTATE, r5, r11, lr}
+  |  mov CCSTATE, CARG1
+  |  ldr CARG1, CCSTATE:CARG1->spadj
+  |   ldrb CARG2, CCSTATE->nsp
+  |    add CARG3, CCSTATE, #offsetof(CCallState, stack)
+  |.if HFABI
+  |  add RB, CCSTATE, #offsetof(CCallState, fpr[0])
+  |.endif
+  |  mov r11, sp
+  |  sub sp, sp, CARG1			// Readjust stack.
+  |   subs CARG2, CARG2, #1
+  |.if HFABI
+  |  vldm RB, {d0-d7}
+  |.endif
+  |    ldr RB, CCSTATE->func
+  |   bmi >2
+  |1:  // Copy stack slots.
+  |  ldr CARG4, [CARG3, CARG2, lsl #2]
+  |  str CARG4, [sp, CARG2, lsl #2]
+  |  subs CARG2, CARG2, #1
+  |  bpl <1
+  |2:
+  |  ldrd CARG12, CCSTATE->gpr[0]
+  |  ldrd CARG34, CCSTATE->gpr[2]
+  |  blx RB
+  |  mov sp, r11
+  |.if HFABI
+  |  add r12, CCSTATE, #offsetof(CCallState, fpr[4])
+  |.endif
+  |  strd CRET1, CCSTATE->gpr[0]
+  |.if HFABI
+  |  vstmdb r12!, {d0-d3}
+  |.endif
+  |  pop {CCSTATE, r5, r11, pc}
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RC = src2, JMP with RC = target
+    |   lsl RC, RC, #3
+    |  ldrd CARG12, [RA, BASE]!
+    |    ldrh RB, [PC, #2]
+    |   ldrd CARG34, [RC, BASE]!
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TISNUM
+    |  bne >3
+    |  checktp CARG4, LJ_TISNUM
+    |  bne >4
+    |  cmp CARG1, CARG3
+    if (op == BC_ISLT) {
+      |  sublt PC, RB, #0x20000
+    } else if (op == BC_ISGE) {
+      |  subge PC, RB, #0x20000
+    } else if (op == BC_ISLE) {
+      |  suble PC, RB, #0x20000
+    } else {
+      |  subgt PC, RB, #0x20000
+    }
+    |1:
+    |  ins_next
+    |
+    |3: // CARG12 is not an integer.
+    |.if FPU
+    |   vldr d0, [RA]
+    |  bhi ->vmeta_comp
+    |  // d0 is a number.
+    |  checktp CARG4, LJ_TISNUM
+    |   vldr d1, [RC]
+    |  blo >5
+    |  bhi ->vmeta_comp
+    |  // d0 is a number, CARG3 is an integer.
+    |  vmov s4, CARG3
+    |  vcvt.f64.s32 d1, s4
+    |  b >5
+    |4:  // CARG1 is an integer, CARG34 is not an integer.
+    |   vldr d1, [RC]
+    |  bhi ->vmeta_comp
+    |  // CARG1 is an integer, d1 is a number.
+    |  vmov s4, CARG1
+    |  vcvt.f64.s32 d0, s4
+    |5:  // d0 and d1 are numbers.
+    |  vcmp.f64 d0, d1
+    |  vmrs
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    if (op == BC_ISLT) {
+      |  sublo PC, RB, #0x20000
+    } else if (op == BC_ISGE) {
+      |  subhs PC, RB, #0x20000
+    } else if (op == BC_ISLE) {
+      |  subls PC, RB, #0x20000
+    } else {
+      |  subhi PC, RB, #0x20000
+    }
+    |  b <1
+    |.else
+    |  bhi ->vmeta_comp
+    |  // CARG12 is a number.
+    |  checktp CARG4, LJ_TISNUM
+    |  movlo RA, RB			// Save RB.
+    |  blo >5
+    |  bhi ->vmeta_comp
+    |  // CARG12 is a number, CARG3 is an integer.
+    |  mov CARG1, CARG3
+    |  mov RC, RA
+    |  mov RA, RB			// Save RB.
+    |  bl extern __aeabi_i2d
+    |  mov CARG3, CARG1
+    |  mov CARG4, CARG2
+    |  ldrd CARG12, [RC]		// Restore first operand.
+    |  b >5
+    |4:  // CARG1 is an integer, CARG34 is not an integer.
+    |  bhi ->vmeta_comp
+    |  // CARG1 is an integer, CARG34 is a number.
+    |  mov RA, RB			// Save RB.
+    |  bl extern __aeabi_i2d
+    |  ldrd CARG34, [RC]		// Restore second operand.
+    |5:  // CARG12 and CARG34 are numbers.
+    |  bl extern __aeabi_cdcmple
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    if (op == BC_ISLT) {
+      |  sublo PC, RA, #0x20000
+    } else if (op == BC_ISGE) {
+      |  subhs PC, RA, #0x20000
+    } else if (op == BC_ISLE) {
+      |  subls PC, RA, #0x20000
+    } else {
+      |  subhi PC, RA, #0x20000
+    }
+    |  b <1
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RC = src2, JMP with RC = target
+    |   lsl RC, RC, #3
+    |  ldrd CARG12, [RA, BASE]!
+    |    ldrh RB, [PC, #2]
+    |   ldrd CARG34, [RC, BASE]!
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TISNUM
+    |  cmnls CARG4, #-LJ_TISNUM
+    if (vk) {
+      |  bls ->BC_ISEQN_Z
+    } else {
+      |  bls ->BC_ISNEN_Z
+    }
+    |  // Either or both types are not numbers.
+    |.if FFI
+    |  checktp CARG2, LJ_TCDATA
+    |  checktpne CARG4, LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  cmp CARG2, CARG4			// Compare types.
+    |  bne >2				// Not the same type?
+    |  checktp CARG2, LJ_TISPRI
+    |  bhs >1				// Same type and primitive type?
+    |
+    |  // Same types and not a primitive type. Compare GCobj or pvalue.
+    |  cmp CARG1, CARG3
+    if (vk) {
+      |  bne >3				// Different GCobjs or pvalues?
+      |1:  // Branch if same.
+      |  sub PC, RB, #0x20000
+      |2:  // Different.
+      |  ins_next
+      |3:
+      |  checktp CARG2, LJ_TISTABUD
+      |  bhi <2				// Different objects and not table/ud?
+    } else {
+      |  beq >1				// Same GCobjs or pvalues?
+      |  checktp CARG2, LJ_TISTABUD
+      |  bhi >2				// Different objects and not table/ud?
+    }
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  ldr TAB:RA, TAB:CARG1->metatable
+    |  cmp TAB:RA, #0
+    if (vk) {
+      |  beq <2			// No metatable?
+    } else {
+      |  beq >2			// No metatable?
+    }
+    |  ldrb RA, TAB:RA->nomm
+    |   mov CARG4, #1-vk		// ne = 0 or 1.
+    |   mov CARG2, CARG1
+    |  tst RA, #1<<MM_eq
+    |  beq ->vmeta_equal		// 'no __eq' flag not set?
+    if (vk) {
+      |  b <2
+    } else {
+      |2:  // Branch if different.
+      |  sub PC, RB, #0x20000
+      |1:  // Same.
+      |  ins_next
+    }
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RC = str_const (~), JMP with RC = target
+    |   mvn RC, RC
+    |  ldrd CARG12, [BASE, RA]
+    |    ldrh RB, [PC, #2]
+    |   ldr STR:CARG3, [KBASE, RC, lsl #2]
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TSTR
+    |.if FFI
+    |  bne >7
+    |  cmp CARG1, CARG3
+    |.else
+    |  cmpeq CARG1, CARG3
+    |.endif
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+      |1:
+    } else {
+      |1:
+      |  subne PC, RB, #0x20000
+    }
+    |  ins_next
+    |
+    |.if FFI
+    |7:
+    |  checktp CARG2, LJ_TCDATA
+    |  bne <1
+    |  b ->vmeta_equal_cd
+    |.endif
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RC = num_const (~), JMP with RC = target
+    |   lsl RC, RC, #3
+    |  ldrd CARG12, [RA, BASE]!
+    |    ldrh RB, [PC, #2]
+    |   ldrd CARG34, [RC, KBASE]!
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  checktp CARG2, LJ_TISNUM
+    |  bne >3
+    |  checktp CARG4, LJ_TISNUM
+    |  bne >4
+    |  cmp CARG1, CARG3
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+      |1:
+    } else {
+      |1:
+      |  subne PC, RB, #0x20000
+    }
+    |2:
+    |  ins_next
+    |
+    |3:  // CARG12 is not an integer.
+    |.if FFI
+    |  bhi >7
+    |.else
+    if (!vk) {
+      |  subhi PC, RB, #0x20000
+    }
+    |  bhi <2
+    |.endif
+    |.if FPU
+    |  checktp CARG4, LJ_TISNUM
+    |  vmov s4, CARG3
+    |   vldr d0, [RA]
+    |  vldrlo d1, [RC]
+    |  vcvths.f64.s32 d1, s4
+    |  b >5
+    |4:  // CARG1 is an integer, d1 is a number.
+    |  vmov s4, CARG1
+    |   vldr d1, [RC]
+    |  vcvt.f64.s32 d0, s4
+    |5:  // d0 and d1 are numbers.
+    |  vcmp.f64 d0, d1
+    |  vmrs
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+    } else {
+      |  subne PC, RB, #0x20000
+    }
+    |  b <2
+    |.else
+    |  // CARG12 is a number.
+    |  checktp CARG4, LJ_TISNUM
+    |  movlo RA, RB			// Save RB.
+    |  blo >5
+    |  // CARG12 is a number, CARG3 is an integer.
+    |  mov CARG1, CARG3
+    |  mov RC, RA
+    |4:  // CARG1 is an integer, CARG34 is a number.
+    |  mov RA, RB			// Save RB.
+    |  bl extern __aeabi_i2d
+    |  ldrd CARG34, [RC]		// Restore other operand.
+    |5:  // CARG12 and CARG34 are numbers.
+    |  bl extern __aeabi_cdcmpeq
+    if (vk) {
+      |  subeq PC, RA, #0x20000
+    } else {
+      |  subne PC, RA, #0x20000
+    }
+    |  b <2
+    |.endif
+    |
+    |.if FFI
+    |7:
+    |  checktp CARG2, LJ_TCDATA
+    |  bne <1
+    |  b ->vmeta_equal_cd
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RC = primitive_type (~), JMP with RC = target
+    |  ldrd CARG12, [BASE, RA]
+    |   ldrh RB, [PC, #2]
+    |   add PC, PC, #4
+    |  mvn RC, RC
+    |   add RB, PC, RB, lsl #2
+    |.if FFI
+    |  checktp CARG2, LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  cmp CARG2, RC
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+    } else {
+      |  subne PC, RB, #0x20000
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RC = src, JMP with RC = target
+    |  add RC, BASE, RC, lsl #3
+    |   ldrh RB, [PC, #2]
+    |  ldrd CARG12, [RC]
+    |   add PC, PC, #4
+    |   add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TTRUE
+    if (op == BC_ISTC || op == BC_IST) {
+      |  subls PC, RB, #0x20000
+      if (op == BC_ISTC) {
+	|  strdls CARG12, [BASE, RA]
+      }
+    } else {
+      |  subhi PC, RB, #0x20000
+      if (op == BC_ISFC) {
+	|  strdhi CARG12, [BASE, RA]
+      }
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RC = src
+    |  lsl RC, RC, #3
+    |   ins_next1
+    |  ldrd CARG12, [BASE, RC]
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RC = src
+    |  add RC, BASE, RC, lsl #3
+    |   ins_next1
+    |  ldr CARG1, [RC, #4]
+    |   add RA, BASE, RA
+    |   ins_next2
+    |  checktp CARG1, LJ_TTRUE
+    |  mvnls CARG2, #~LJ_TFALSE
+    |  mvnhi CARG2, #~LJ_TTRUE
+    |  str CARG2, [RA, #4]
+    |   ins_next3
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RC = src
+    |  lsl RC, RC, #3
+    |  ldrd CARG12, [BASE, RC]
+    |   ins_next1
+    |   ins_next2
+    |  checktp CARG2, LJ_TISNUM
+    |  bhi ->vmeta_unm
+    |  eorne CARG2, CARG2, #0x80000000
+    |  bne >5
+    |  rsbseq CARG1, CARG1, #0
+    |  ldrdvs CARG12, >9
+    |5:
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |
+    |.align 8
+    |9:
+    |  .long 0x00000000, 0x41e00000	// 2^31.
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RC = src
+    |  lsl RC, RC, #3
+    |  ldrd CARG12, [BASE, RC]
+    |  checkstr CARG2, >2
+    |  ldr CARG1, STR:CARG1->len
+    |1:
+    |  mvn CARG2, #~LJ_TISNUM
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |2:
+    |  checktab CARG2, ->vmeta_len
+#if LJ_52
+    |  ldr TAB:CARG3, TAB:CARG1->metatable
+    |  cmp TAB:CARG3, #0
+    |  bne >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  .IOS mov RC, BASE
+    |  bl extern lj_tab_len		// (GCtab *t)
+    |  // Returns uint32_t (but less than 2^31).
+    |  .IOS mov BASE, RC
+    |  b <1
+#if LJ_52
+    |9:
+    |  ldrb CARG4, TAB:CARG3->nomm
+    |  tst CARG4, #1<<MM_len
+    |  bne <3				// 'no __len' flag set: done.
+    |  b ->vmeta_len
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithcheck, cond, ncond, target
+    ||if (vk == 1) {
+    |   cmn CARG4, #-LJ_TISNUM
+    |    cmn..cond CARG2, #-LJ_TISNUM
+    ||} else {
+    |   cmn CARG2, #-LJ_TISNUM
+    |    cmn..cond CARG4, #-LJ_TISNUM
+    ||}
+    |  b..ncond target
+    |.endmacro
+    |.macro ins_arithcheck_int, target
+    |  ins_arithcheck eq, ne, target
+    |.endmacro
+    |.macro ins_arithcheck_num, target
+    |  ins_arithcheck lo, hs, target
+    |.endmacro
+    |
+    |.macro ins_arithpre
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   .if FPU
+    |   ldrd CARG12, [RB, BASE]!
+    |    ldrd CARG34, [RC, KBASE]!
+    |   .else
+    |   ldrd CARG12, [BASE, RB]
+    |    ldrd CARG34, [KBASE, RC]
+    |   .endif
+    ||  break;
+    ||case 1:
+    |   .if FPU
+    |   ldrd CARG34, [RB, BASE]!
+    |    ldrd CARG12, [RC, KBASE]!
+    |   .else
+    |   ldrd CARG34, [BASE, RB]
+    |    ldrd CARG12, [KBASE, RC]
+    |   .endif
+    ||  break;
+    ||default:
+    |   .if FPU
+    |   ldrd CARG12, [RB, BASE]!
+    |    ldrd CARG34, [RC, BASE]!
+    |   .else
+    |   ldrd CARG12, [BASE, RB]
+    |    ldrd CARG34, [BASE, RC]
+    |   .endif
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithpre_fpu, reg1, reg2
+    |.if FPU
+    ||if (vk == 1) {
+    |  vldr reg2, [RB]
+    |  vldr reg1, [RC]
+    ||} else {
+    |  vldr reg1, [RB]
+    |  vldr reg2, [RC]
+    ||}
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arithpost_fpu, reg
+    |   ins_next1
+    |  add RA, BASE, RA
+    |   ins_next2
+    |  vstr reg, [RA]
+    |   ins_next3
+    |.endmacro
+    |
+    |.macro ins_arithfallback, ins
+    ||switch (vk) {
+    ||case 0:
+    |   ins ->vmeta_arith_vn
+    ||  break;
+    ||case 1:
+    |   ins ->vmeta_arith_nv
+    ||  break;
+    ||default:
+    |   ins ->vmeta_arith_vv
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins, fpins, fpcall
+    |  ins_arithpre
+    |.if "intins" ~= "vm_modi" and not FPU
+    |   ins_next1
+    |.endif
+    |  ins_arithcheck_int >5
+    |.if "intins" == "smull"
+    |  smull CARG1, RC, CARG3, CARG1
+    |  cmp RC, CARG1, asr #31
+    |  ins_arithfallback bne
+    |.elif "intins" == "vm_modi"
+    |  movs CARG2, CARG3
+    |  ins_arithfallback beq
+    |  bl ->vm_modi
+    |  mvn CARG2, #~LJ_TISNUM
+    |.else
+    |  intins CARG1, CARG1, CARG3
+    |  ins_arithfallback bvs
+    |.endif
+    |4:
+    |.if "intins" == "vm_modi" or FPU
+    |   ins_next1
+    |.endif
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |5:  // FP variant.
+    |  ins_arithpre_fpu d6, d7
+    |  ins_arithfallback ins_arithcheck_num
+    |.if FPU
+    |.if "intins" == "vm_modi"
+    |  bl fpcall
+    |.else
+    |  fpins d6, d6, d7
+    |.endif
+    |  ins_arithpost_fpu d6
+    |.else
+    |  bl fpcall
+    |.if "intins" ~= "vm_modi"
+    |  ins_next1
+    |.endif
+    |  b <4
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arithfp, fpins, fpcall
+    |  ins_arithpre
+    |.if "fpins" ~= "extern" or HFABI
+    |  ins_arithpre_fpu d0, d1
+    |.endif
+    |  ins_arithfallback ins_arithcheck_num
+    |.if "fpins" == "extern"
+    |  .IOS mov RC, BASE
+    |  bl fpcall
+    |  .IOS mov BASE, RC
+    |.elif FPU
+    |  fpins d0, d0, d1
+    |.else
+    |  bl fpcall
+    |.endif
+    |.if ("fpins" ~= "extern" or HFABI) and FPU
+    |  ins_arithpost_fpu d0
+    |.else
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |.endif
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arithdn adds, vadd.f64, extern __aeabi_dadd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arithdn subs, vsub.f64, extern __aeabi_dsub
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arithdn smull, vmul.f64, extern __aeabi_dmul
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithfp vdiv.f64, extern __aeabi_ddiv
+    break;
+  case BC_MODVN: case BC_MODNV: case BC_MODVV:
+    |  ins_arithdn vm_modi, vm_mod, ->vm_mod
+    break;
+  case BC_POW:
+    |  // NYI: (partial) integer arithmetic.
+    |  ins_arithfp extern, extern pow
+    break;
+
+  case BC_CAT:
+    |  decode_RB8 RC, INS
+    |   decode_RC8 RB, INS
+    |  // RA = dst*8, RC = src_start*8, RB = src_end*8  (note: RB/RC swapped!)
+    |  sub CARG3, RB, RC
+    |   str BASE, L->base
+    |  add CARG2, BASE, RB
+    |->BC_CAT_Z:
+    |  // RA = dst*8, RC = src_start*8, CARG2 = top-1
+    |  mov CARG1, L
+    |   str PC, SAVE_PC
+    |  lsr CARG3, CARG3, #3
+    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  ldr BASE, L->base
+    |  cmp CRET1, #0
+    |  bne ->vmeta_binop
+    |  ldrd CARG34, [BASE, RC]
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]		// Copy result to RA.
+    |   ins_next3
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RC = str_const (~)
+    |  mvn RC, RC
+    |   ins_next1
+    |  ldr CARG1, [KBASE, RC, lsl #2]
+    |  mvn CARG2, #~LJ_TSTR
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RC = cdata_const (~)
+    |  mvn RC, RC
+    |   ins_next1
+    |  ldr CARG1, [KBASE, RC, lsl #2]
+    |  mvn CARG2, #~LJ_TCDATA
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, (RC = int16_literal)
+    |  mov CARG1, INS, asr #16			// Refetch sign-extended reg.
+    |  mvn CARG2, #~LJ_TISNUM
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RC = num_const
+    |  lsl RC, RC, #3
+    |   ins_next1
+    |  ldrd CARG12, [KBASE, RC]
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RC = primitive_type (~)
+    |  add RA, BASE, RA
+    |  mvn RC, RC
+    |   ins_next1
+    |   ins_next2
+    |  str RC, [RA, #4]
+    |   ins_next3
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RC = end
+    |  add RA, BASE, RA
+    |   add RC, BASE, RC, lsl #3
+    |  mvn CARG1, #~LJ_TNIL
+    |  str CARG1, [RA, #4]
+    |   add RA, RA, #8
+    |1:
+    |  str CARG1, [RA, #4]
+    |  cmp RA, RC
+    |   add RA, RA, #8
+    |  blt <1
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RC = uvnum
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsl RC, RC, #2
+    |   add RC, RC, #offsetof(GCfuncL, uvptr)
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RC]
+    |  ldr CARG2, UPVAL:CARG2->v
+    |  ldrd CARG34, [CARG2]
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RC = src
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |    lsl RC, RC, #3
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |    ldrd CARG34, [BASE, RC]
+    |  ldrb RB, UPVAL:CARG2->marked
+    |  ldrb RC, UPVAL:CARG2->closed
+    |    ldr CARG2, UPVAL:CARG2->v
+    |  tst RB, #LJ_GC_BLACK		// isblack(uv)
+    |   add RB, CARG4, #-LJ_TISGCV
+    |  cmpne RC, #0
+    |   strd CARG34, [CARG2]
+    |  bne >2				// Upvalue is closed and black?
+    |1:
+    |   ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  cmn RB, #-(LJ_TNUMX - LJ_TISGCV)
+    |   ldrbhi RC, GCOBJ:CARG3->gch.marked
+    |  bls <1				// tvisgcv(v)
+    |    sub CARG1, DISPATCH, #-GG_DISP2G
+    |   tst RC, #LJ_GC_WHITES
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if IOS
+    |  beq <1
+    |  mov RC, BASE
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  mov BASE, RC
+    |.else
+    |  blne extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.endif
+    |  b <1
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RC = str_const (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |    mvn RC, RC
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |    ldr STR:CARG3, [KBASE, RC, lsl #2]
+    |    mvn CARG4, #~LJ_TSTR
+    |  ldrb RB, UPVAL:CARG2->marked
+    |   ldr CARG2, UPVAL:CARG2->v
+    |     ldrb RC, UPVAL:CARG2->closed
+    |  tst RB, #LJ_GC_BLACK		// isblack(uv)
+    |    ldrb RB, STR:CARG3->marked
+    |   strd CARG34, [CARG2]
+    |  bne >2
+    |1:
+    |   ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  tst RB, #LJ_GC_WHITES		// iswhite(str)
+    |  cmpne RC, #0
+    |   sub CARG1, DISPATCH, #-GG_DISP2G
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if IOS
+    |  beq <1
+    |  mov RC, BASE
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  mov BASE, RC
+    |.else
+    |  blne extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.endif
+    |  b <1
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RC = num_const
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |    lsl RC, RC, #3
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |    ldrd CARG34, [KBASE, RC]
+    |  ldr CARG2, UPVAL:CARG2->v
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [CARG2]
+    |   ins_next3
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RC = primitive_type (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |   mvn RC, RC
+    |  ldr CARG2, UPVAL:CARG2->v
+    |   ins_next1
+    |   ins_next2
+    |  str RC, [CARG2, #4]
+    |   ins_next3
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RC = target
+    |  ldr CARG3, L->openupval
+    |   add RC, PC, RC, lsl #2
+    |   str BASE, L->base
+    |  cmp CARG3, #0
+    |   sub PC, RC, #0x20000
+    |  beq >1
+    |   mov CARG1, L
+    |   add CARG2, BASE, RA
+    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  ldr BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RC = proto_const (~) (holding function prototype)
+    |  mvn RC, RC
+    |   str BASE, L->base
+    |  ldr CARG2, [KBASE, RC, lsl #2]
+    |   str PC, SAVE_PC
+    |  ldr CARG3, [BASE, FRAME_FUNC]
+    |   mov CARG1, L
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  bl extern lj_func_newL_gc
+    |  // Returns GCfuncL *.
+    |  ldr BASE, L->base
+    |  mvn CARG2, #~LJ_TFUNC
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RC = (hbits|asize) | tab_const (~)
+    if (op == BC_TDUP) {
+      |  mvn RC, RC
+    }
+    |  ldr CARG3, [DISPATCH, #DISPATCH_GL(gc.total)]
+    |   ldr CARG4, [DISPATCH, #DISPATCH_GL(gc.threshold)]
+    |    str BASE, L->base
+    |    str PC, SAVE_PC
+    |  cmp CARG3, CARG4
+    |   mov CARG1, L
+    |  bhs >5
+    |1:
+    if (op == BC_TNEW) {
+      |  lsl CARG2, RC, #21
+      |   lsr CARG3, RC, #11
+      |  asr RC, CARG2, #21
+      |  lsr CARG2, CARG2, #21
+      |  cmn RC, #1
+      |  addeq CARG2, CARG2, #2
+      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  // Returns GCtab *.
+    } else {
+      |  ldr CARG2, [KBASE, RC, lsl #2]
+      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
+      |  // Returns GCtab *.
+    }
+    |  ldr BASE, L->base
+    |  mvn CARG2, #~LJ_TTAB
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |5:
+    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
+    |  mov CARG1, L
+    |  b <1
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RC = str_const (~)
+  case BC_GSET:
+    |  // RA = dst*8, RC = str_const (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   mvn RC, RC
+    |  ldr TAB:CARG1, LFUNC:CARG2->env
+    |   ldr STR:RC, [KBASE, RC, lsl #2]
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    break;
+
+  case BC_TGETV:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  ldrd TAB:CARG12, [BASE, RB]
+    |   ldrd CARG34, [BASE, RC]
+    |  checktab CARG2, ->vmeta_tgetv  // STALL: load CARG12.
+    |   checktp CARG4, LJ_TISNUM	// Integer key?
+    |  ldreq CARG4, TAB:CARG1->array
+    |    ldreq CARG2, TAB:CARG1->asize
+    |   bne >9
+    |
+    |  add CARG4, CARG4, CARG3, lsl #3
+    |    cmp CARG3, CARG2		// In array part?
+    |  ldrdlo CARG34, [CARG4]
+    |    bhs ->vmeta_tgetv
+    |   ins_next1  // Overwrites RB!
+    |  checktp CARG4, LJ_TNIL
+    |  beq >5
+    |1:
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG2, TAB:CARG1->metatable
+    |  cmp TAB:CARG2, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb CARG2, TAB:CARG2->nomm
+    |  tst CARG2, #1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  decode_RB8 RB, INS		// Restore RB.
+    |  b ->vmeta_tgetv
+    |
+    |9:
+    |  checktp CARG4, LJ_TSTR		// String key?
+    |   moveq STR:RC, CARG3
+    |  beq ->BC_TGETS_Z
+    |  b ->vmeta_tgetv
+    break;
+  case BC_TGETS:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst*8, RB = table*8, RC = str_const (~)
+    |  ldrd CARG12, [BASE, RB]
+    |   mvn RC, RC
+    |   ldr STR:RC, [KBASE, RC, lsl #2]  // STALL: early RC.
+    |  checktab CARG2, ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // (TAB:RB =) TAB:CARG1 = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  ldr CARG3, TAB:CARG1->hmask
+    |   ldr CARG4, STR:RC->hash
+    |    ldr NODE:INS, TAB:CARG1->node
+    |     mov TAB:RB, TAB:CARG1
+    |  and CARG3, CARG3, CARG4			// idx = str->hash & tab->hmask
+    |  add CARG3, CARG3, CARG3, lsl #1
+    |    add NODE:INS, NODE:INS, CARG3, lsl #3	// node = tab->node + idx*3*8
+    |1:
+    |  ldrd CARG12, NODE:INS->key  // STALL: early NODE:INS.
+    |   ldrd CARG34, NODE:INS->val
+    |    ldr NODE:INS, NODE:INS->next
+    |  checktp CARG2, LJ_TSTR
+    |  cmpeq CARG1, STR:RC
+    |  bne >4
+    |   checktp CARG4, LJ_TNIL
+    |   beq >5
+    |3:
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    |
+    |4:  // Follow hash chain.
+    |  cmp NODE:INS, #0
+    |  bne <1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG1, TAB:RB->metatable
+    |   mov CARG3, #0  // Optional clear of undef. value (during load stall).
+    |   mvn CARG4, #~LJ_TNIL
+    |  cmp TAB:CARG1, #0
+    |  beq <3				// No metatable: done.
+    |  ldrb CARG2, TAB:CARG1->nomm
+    |  tst CARG2, #1<<MM_index
+    |  bne <3				// 'no __index' flag set: done.
+    |  b ->vmeta_tgets
+    break;
+  case BC_TGETB:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst*8, RB = table*8, RC = index
+    |  ldrd CARG12, [BASE, RB]
+    |  checktab CARG2, ->vmeta_tgetb  // STALL: load CARG12.
+    |   ldr CARG3, TAB:CARG1->asize
+    |  ldr CARG4, TAB:CARG1->array
+    |  lsl CARG2, RC, #3
+    |   cmp RC, CARG3
+    |  ldrdlo CARG34, [CARG4, CARG2]
+    |   bhs ->vmeta_tgetb
+    |   ins_next1  // Overwrites RB!
+    |  checktp CARG4, LJ_TNIL
+    |  beq >5
+    |1:
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG2, TAB:CARG1->metatable
+    |  cmp TAB:CARG2, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb CARG2, TAB:CARG2->nomm
+    |  tst CARG2, #1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetb
+    break;
+
+  case BC_TSETV:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  ldrd TAB:CARG12, [BASE, RB]
+    |   ldrd CARG34, [BASE, RC]
+    |  checktab CARG2, ->vmeta_tsetv  // STALL: load CARG12.
+    |   checktp CARG4, LJ_TISNUM	// Integer key?
+    |  ldreq CARG2, TAB:CARG1->array
+    |    ldreq CARG4, TAB:CARG1->asize
+    |   bne >9
+    |
+    |  add CARG2, CARG2, CARG3, lsl #3
+    |    cmp CARG3, CARG4		// In array part?
+    |  ldrlo INS, [CARG2, #4]
+    |    bhs ->vmeta_tsetv
+    |   ins_next1  // Overwrites RB!
+    |  checktp INS, LJ_TNIL
+    |  ldrb INS, TAB:CARG1->marked
+    |   ldrd CARG34, [BASE, RA]
+    |  beq >5
+    |1:
+    |  tst INS, #LJ_GC_BLACK		// isblack(table)
+    |   strd CARG34, [CARG2]
+    |  bne >7
+    |2:
+    |   ins_next2
+    |   ins_next3
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:RA, TAB:CARG1->metatable
+    |  cmp TAB:RA, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb RA, TAB:RA->nomm
+    |  tst RA, #1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  ldr INS, [PC, #-4]		// Restore RA and RB.
+    |  decode_RB8 RB, INS
+    |  decode_RA8 RA, INS
+    |  b ->vmeta_tsetv
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG1, INS, CARG3
+    |  b <2
+    |
+    |9:
+    |  checktp CARG4, LJ_TSTR		// String key?
+    |   moveq STR:RC, CARG3
+    |  beq ->BC_TSETS_Z
+    |  b ->vmeta_tsetv
+    break;
+  case BC_TSETS:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = src*8, RB = table*8, RC = str_const (~)
+    |  ldrd CARG12, [BASE, RB]
+    |   mvn RC, RC
+    |   ldr STR:RC, [KBASE, RC, lsl #2]  // STALL: early RC.
+    |  checktab CARG2, ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // (TAB:RB =) TAB:CARG1 = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  ldr CARG3, TAB:CARG1->hmask
+    |   ldr CARG4, STR:RC->hash
+    |    ldr NODE:INS, TAB:CARG1->node
+    |     mov TAB:RB, TAB:CARG1
+    |  and CARG3, CARG3, CARG4			// idx = str->hash & tab->hmask
+    |  add CARG3, CARG3, CARG3, lsl #1
+    |   mov CARG4, #0
+    |    add NODE:INS, NODE:INS, CARG3, lsl #3	// node = tab->node + idx*3*8
+    |   strb CARG4, TAB:RB->nomm		// Clear metamethod cache.
+    |1:
+    |  ldrd CARG12, NODE:INS->key
+    |   ldr CARG4, NODE:INS->val.it
+    |    ldr NODE:CARG3, NODE:INS->next
+    |  checktp CARG2, LJ_TSTR
+    |  cmpeq CARG1, STR:RC
+    |  bne >5
+    |  ldrb CARG2, TAB:RB->marked
+    |   checktp CARG4, LJ_TNIL		// Key found, but nil value?
+    |    ldrd CARG34, [BASE, RA]
+    |   beq >4
+    |2:
+    |  tst CARG2, #LJ_GC_BLACK		// isblack(table)
+    |    strd CARG34, NODE:INS->val
+    |  bne >7
+    |3:
+    |   ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:CARG1, TAB:RB->metatable
+    |  cmp TAB:CARG1, #0
+    |  beq <2				// No metatable: done.
+    |  ldrb CARG1, TAB:CARG1->nomm
+    |  tst CARG1, #1<<MM_newindex
+    |  bne <2				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsets
+    |
+    |5:  // Follow hash chain.
+    |  movs NODE:INS, NODE:CARG3
+    |  bne <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  ldr TAB:CARG1, TAB:RB->metatable
+    |   mov CARG3, TMPDp
+    |   str PC, SAVE_PC
+    |  cmp TAB:CARG1, #0		// No metatable: continue.
+    |   str BASE, L->base
+    |  ldrbne CARG2, TAB:CARG1->nomm
+    |   mov CARG1, L
+    |  beq >6
+    |  tst CARG2, #1<<MM_newindex
+    |  beq ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |6:
+    |  mvn CARG4, #~LJ_TSTR
+    |   str STR:RC, TMPDlo
+    |   mov CARG2, TAB:RB
+    |  str CARG4, TMPDhi
+    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
+    |  // Returns TValue *.
+    |  ldr BASE, L->base
+    |  ldrd CARG34, [BASE, RA]
+    |  strd CARG34, [CRET1]
+    |  b <3				// No 2nd write barrier needed.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, CARG2, CARG3
+    |  b <3
+    break;
+  case BC_TSETB:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = src*8, RB = table*8, RC = index
+    |  ldrd CARG12, [BASE, RB]
+    |  checktab CARG2, ->vmeta_tsetb  // STALL: load CARG12.
+    |   ldr CARG3, TAB:CARG1->asize
+    |  ldr RB, TAB:CARG1->array
+    |  lsl CARG2, RC, #3
+    |   cmp RC, CARG3
+    |  ldrdlo CARG34, [CARG2, RB]!
+    |   bhs ->vmeta_tsetb
+    |   ins_next1  // Overwrites RB!
+    |  checktp CARG4, LJ_TNIL
+    |  ldrb INS, TAB:CARG1->marked
+    |   ldrd CARG34, [BASE, RA]
+    |  beq >5
+    |1:
+    |  tst INS, #LJ_GC_BLACK		// isblack(table)
+    |    strd CARG34, [CARG2]
+    |  bne >7
+    |2:
+    |   ins_next2
+    |   ins_next3
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:RA, TAB:CARG1->metatable
+    |  cmp TAB:RA, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb RA, TAB:RA->nomm
+    |  tst RA, #1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  ldr INS, [PC, #-4]		// Restore INS.
+    |  decode_RA8 RA, INS
+    |  b ->vmeta_tsetb
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG1, INS, CARG3
+    |  b <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RC = num_const (start index)
+    |  add RA, BASE, RA
+    |1:
+    |   ldr RB, SAVE_MULTRES
+    |  ldr TAB:CARG2, [RA, #-8]		// Guaranteed to be a table.
+    |  ldr CARG1, [KBASE, RC, lsl #3]	// Integer constant is in lo-word.
+    |   subs RB, RB, #8
+    |  ldr CARG4, TAB:CARG2->asize
+    |   beq >4				// Nothing to copy?
+    |  add CARG3, CARG1, RB, lsr #3
+    |  cmp CARG3, CARG4
+    |   ldr CARG4, TAB:CARG2->array
+    |    add RB, RA, RB
+    |  bhi >5
+    |   add INS, CARG4, CARG1, lsl #3
+    |    ldrb CARG1, TAB:CARG2->marked
+    |3:  // Copy result slots to table.
+    |   ldrd CARG34, [RA], #8
+    |   strd CARG34, [INS], #8
+    |  cmp RA, RB
+    |  blo <3
+    |    tst CARG1, #LJ_GC_BLACK	// isblack(table)
+    |    bne >7
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |   str BASE, L->base
+    |  mov CARG1, L
+    |   str PC, SAVE_PC
+    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
+    |  // Must not reallocate the stack.
+    |  .IOS ldr BASE, L->base
+    |  b <1
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, CARG1, CARG3
+    |  b <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = nresults+1,) RC = extra_nargs
+    |  ldr CARG1, SAVE_MULTRES
+    |  decode_RC8 NARGS8:RC, INS
+    |  add NARGS8:RC, NARGS8:RC, CARG1
+    |  b ->BC_CALL_Z
+    break;
+  case BC_CALL:
+    |  decode_RC8 NARGS8:RC, INS
+    |  // RA = base*8, (RB = nresults+1,) RC = (nargs+1)*8
+    |->BC_CALL_Z:
+    |  mov RB, BASE			// Save old BASE for vmeta_call.
+    |  ldrd CARG34, [BASE, RA]!
+    |   sub NARGS8:RC, NARGS8:RC, #8
+    |   add BASE, BASE, #8
+    |  checkfunc CARG4, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs
+    |  ldr CARG1, SAVE_MULTRES
+    |  add NARGS8:RC, CARG1, RC, lsl #3
+    |  b ->BC_CALLT1_Z
+    break;
+  case BC_CALLT:
+    |  lsl NARGS8:RC, RC, #3
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |->BC_CALLT1_Z:
+    |  ldrd LFUNC:CARG34, [RA, BASE]!
+    |   sub NARGS8:RC, NARGS8:RC, #8
+    |   add RA, RA, #8
+    |  checkfunc CARG4, ->vmeta_callt
+    |  ldr PC, [BASE, FRAME_PC]
+    |->BC_CALLT2_Z:
+    |   mov RB, #0
+    |   ldrb CARG4, LFUNC:CARG3->ffid
+    |  tst PC, #FRAME_TYPE
+    |  bne >7
+    |1:
+    |  str LFUNC:CARG3, [BASE, FRAME_FUNC]  // Copy function down, but keep PC.
+    |  cmp NARGS8:RC, #0
+    |  beq >3
+    |2:
+    |  ldrd CARG12, [RA, RB]
+    |   add INS, RB, #8
+    |   cmp INS, NARGS8:RC
+    |  strd CARG12, [BASE, RB]
+    |    mov RB, INS
+    |   bne <2
+    |3:
+    |  cmp CARG4, #1			// (> FF_C) Calling a fast function?
+    |  bhi >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  ldr INS, [PC, #-4]
+    |  decode_RA8 RA, INS
+    |  sub CARG1, BASE, RA
+    |  ldr LFUNC:CARG1, [CARG1, #-16]
+    |  ldr CARG1, LFUNC:CARG1->field_pc
+    |  ldr KBASE, [CARG1, #PC2PROTO(k)]
+    |  b <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  eor PC, PC, #FRAME_VARG
+    |  tst PC, #FRAME_TYPEP		// Vararg frame below?
+    |  movne CARG4, #0			// Clear ffid if no Lua function below.
+    |  bne <1
+    |  sub BASE, BASE, PC
+    |  ldr PC, [BASE, FRAME_PC]
+    |  tst PC, #FRAME_TYPE
+    |  movne CARG4, #0			// Clear ffid if no Lua function below.
+    |  b <1
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  add RA, BASE, RA
+    |   mov RB, BASE			// Save old BASE for vmeta_call.
+    |  ldrd CARG34, [RA, #-16]
+    |   ldrd CARG12, [RA, #-8]
+    |    add BASE, RA, #8
+    |  strd CARG34, [RA, #8]		// Copy state.
+    |   strd CARG12, [RA, #16]		// Copy control var.
+    |  // STALL: locked CARG34.
+    |  ldrd LFUNC:CARG34, [RA, #-24]
+    |    mov NARGS8:RC, #16		// Iterators get 2 arguments.
+    |  // STALL: load CARG34.
+    |  strd LFUNC:CARG34, [RA]		// Copy callable.
+    |  checkfunc CARG4, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |  // RA = base*8, (RB = nresults+1, RC = nargs+1 (2+1))
+    |.if JIT
+    |  // NYI: add hotloop, record BC_ITERN.
+    |.endif
+    |  add RA, BASE, RA
+    |  ldr TAB:RB, [RA, #-16]
+    |  ldr CARG1, [RA, #-8]		// Get index from control var.
+    |  ldr INS, TAB:RB->asize
+    |   ldr CARG2, TAB:RB->array
+    |    add PC, PC, #4
+    |1:  // Traverse array part.
+    |  subs RC, CARG1, INS
+    |   add CARG3, CARG2, CARG1, lsl #3
+    |  bhs >5				// Index points after array part?
+    |   ldrd CARG34, [CARG3]
+    |   checktp CARG4, LJ_TNIL
+    |   addeq CARG1, CARG1, #1		// Skip holes in array part.
+    |   beq <1
+    |  ldrh RC, [PC, #-2]
+    |   mvn CARG2, #~LJ_TISNUM
+    |    strd CARG34, [RA, #8]
+    |  add RC, PC, RC, lsl #2
+    |    add RB, CARG1, #1
+    |   strd CARG12, [RA]
+    |  sub PC, RC, #0x20000
+    |    str RB, [RA, #-8]		// Update control var.
+    |3:
+    |  ins_next
+    |
+    |5:  // Traverse hash part.
+    |  ldr CARG4, TAB:RB->hmask
+    |   ldr NODE:RB, TAB:RB->node
+    |6:
+    |   add CARG1, RC, RC, lsl #1
+    |  cmp RC, CARG4			// End of iteration? Branch to ITERL+1.
+    |   add NODE:CARG3, NODE:RB, CARG1, lsl #3  // node = tab->node + idx*3*8
+    |  bhi <3
+    |   ldrd CARG12, NODE:CARG3->val
+    |   checktp CARG2, LJ_TNIL
+    |   add RC, RC, #1
+    |   beq <6				// Skip holes in hash part.
+    |  ldrh RB, [PC, #-2]
+    |   add RC, RC, INS
+    |    ldrd CARG34, NODE:CARG3->key
+    |   str RC, [RA, #-8]		// Update control var.
+    |   strd CARG12, [RA, #8]
+    |  add RC, PC, RB, lsl #2
+    |  sub PC, RC, #0x20000
+    |    strd CARG34, [RA]
+    |  b <3
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RC = target (points to ITERN)
+    |  add RA, BASE, RA
+    |     add RC, PC, RC, lsl #2
+    |  ldrd CFUNC:CARG12, [RA, #-24]
+    |   ldr CARG3, [RA, #-12]
+    |    ldr CARG4, [RA, #-4]
+    |  checktp CARG2, LJ_TFUNC
+    |  ldrbeq CARG1, CFUNC:CARG1->ffid
+    |   checktpeq CARG3, LJ_TTAB
+    |    checktpeq CARG4, LJ_TNIL
+    |  cmpeq CARG1, #FF_next_N
+    |     subeq PC, RC, #0x20000
+    |  bne >5
+    |   ins_next1
+    |   ins_next2
+    |  mov CARG1, #0
+    |  mvn CARG2, #0x00018000
+    |  strd CARG1, [RA, #-8]		// Initialize control var.
+    |1:
+    |   ins_next3
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  mov CARG1, #BC_JMP
+    |   mov OP, #BC_ITERC
+    |  strb CARG1, [PC, #-4]
+    |   sub PC, RC, #0x20000
+    |   strb OP, [PC]			// Subsumes ins_next1.
+    |   ins_next2
+    |  b <1
+    break;
+
+  case BC_VARG:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  ldr CARG1, [BASE, FRAME_PC]
+    |  add RC, BASE, RC
+    |   add RA, BASE, RA
+    |  add RC, RC, #FRAME_VARG
+    |   add CARG4, RA, RB
+    |  sub CARG3, BASE, #8		// CARG3 = vtop
+    |  sub RC, RC, CARG1		// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  cmp RB, #0
+    |   sub CARG1, CARG3, RC
+    |  beq >5				// Copy all varargs?
+    |   sub CARG4, CARG4, #16
+    |1:  // Copy vararg slots to destination slots.
+    |  cmp RC, CARG3
+    |  ldrdlo CARG12, [RC], #8
+    |  mvnhs CARG2, #~LJ_TNIL
+    |   cmp RA, CARG4
+    |  strd CARG12, [RA], #8
+    |   blo <1
+    |2:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  ldr CARG4, L->maxstack
+    |   cmp CARG1, #0
+    |   movle RB, #8			// MULTRES = (0+1)*8
+    |   addgt RB, CARG1, #8
+    |  add CARG2, RA, CARG1
+    |   str RB, SAVE_MULTRES
+    |   ble <2
+    |  cmp CARG2, CARG4
+    |  bhi >7
+    |6:
+    |   ldrd CARG12, [RC], #8
+    |   strd CARG12, [RA], #8
+    |  cmp RC, CARG3
+    |  blo <6
+    |  b <2
+    |
+    |7:  // Grow stack for varargs.
+    |  lsr CARG2, CARG1, #3
+    |   str RA, L->top
+    |  mov CARG1, L
+    |   str BASE, L->base
+    |  sub RC, RC, BASE			// Need delta, because BASE may change.
+    |   str PC, SAVE_PC
+    |  sub RA, RA, BASE
+    |  bl extern lj_state_growstack	// (lua_State *L, int n)
+    |  ldr BASE, L->base
+    |  add RA, BASE, RA
+    |  add RC, BASE, RC
+    |  sub CARG3, BASE, #8
+    |  b <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RC = extra results
+    |  ldr CARG1, SAVE_MULTRES
+    |   ldr PC, [BASE, FRAME_PC]
+    |    add RA, BASE, RA
+    |  add RC, CARG1, RC, lsl #3
+    |  b ->BC_RETM_Z
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RC = nresults+1
+    |  ldr PC, [BASE, FRAME_PC]
+    |   lsl RC, RC, #3
+    |    add RA, BASE, RA
+    |->BC_RETM_Z:
+    |   str RC, SAVE_MULTRES
+    |1:
+    |  ands CARG1, PC, #FRAME_TYPE
+    |   eor CARG2, PC, #FRAME_VARG
+    |  bne ->BC_RETV2_Z
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RC = (nresults+1)*8, PC = return
+    |  ldr INS, [PC, #-4]
+    |  subs CARG4, RC, #8
+    |   sub CARG3, BASE, #8
+    |  beq >3
+    |2:
+    |  ldrd CARG12, [RA], #8
+    |   add BASE, BASE, #8
+    |   subs CARG4, CARG4, #8
+    |  strd CARG12, [BASE, #-16]
+    |   bne <2
+    |3:
+    |  decode_RA8 RA, INS
+    |  sub CARG4, CARG3, RA
+    |   decode_RB8 RB, INS
+    |  ldr LFUNC:CARG1, [CARG4, FRAME_FUNC]
+    |5:
+    |  cmp RB, RC			// More results expected?
+    |  bhi >6
+    |  mov BASE, CARG4
+    |  ldr CARG2, LFUNC:CARG1->field_pc
+    |   ins_next1
+    |   ins_next2
+    |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+    |   ins_next3
+    |
+    |6:  // Fill up results with nil.
+    |  mvn CARG2, #~LJ_TNIL
+    |  add BASE, BASE, #8
+    |   add RC, RC, #8
+    |  str CARG2, [BASE, #-12]
+    |  b <5
+    |
+    |->BC_RETV1_Z:  // Non-standard return case.
+    |  add RA, BASE, RA
+    |->BC_RETV2_Z:
+    |  tst CARG2, #FRAME_TYPEP
+    |  bne ->vm_return
+    |  // Return from vararg function: relocate BASE down.
+    |  sub BASE, BASE, CARG2
+    |  ldr PC, [BASE, FRAME_PC]
+    |  b <1
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RC = nresults+1
+    |  ldr PC, [BASE, FRAME_PC]
+    |   lsl RC, RC, #3
+    |   str RC, SAVE_MULTRES
+    |  ands CARG1, PC, #FRAME_TYPE
+    |   eor CARG2, PC, #FRAME_VARG
+    |   ldreq INS, [PC, #-4]
+    |  bne ->BC_RETV1_Z
+    if (op == BC_RET1) {
+      |  ldrd CARG12, [BASE, RA]
+    }
+    |  sub CARG4, BASE, #8
+    |   decode_RA8 RA, INS
+    if (op == BC_RET1) {
+      |  strd CARG12, [CARG4]
+    }
+    |  sub BASE, CARG4, RA
+    |   decode_RB8 RB, INS
+    |  ldr LFUNC:CARG1, [BASE, FRAME_FUNC]
+    |5:
+    |  cmp RB, RC
+    |  bhi >6
+    |  ldr CARG2, LFUNC:CARG1->field_pc
+    |   ins_next1
+    |   ins_next2
+    |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+    |   ins_next3
+    |
+    |6:  // Fill up results with nil.
+    |  sub CARG2, CARG4, #4
+    |  mvn CARG3, #~LJ_TNIL
+    |  str CARG3, [CARG2, RC]
+    |  add RC, RC, #8
+    |  b <5
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  |.define FOR_IDX,  [RA];      .define FOR_TIDX,  [RA, #4]
+  |.define FOR_STOP, [RA, #8];  .define FOR_TSTOP, [RA, #12]
+  |.define FOR_STEP, [RA, #16]; .define FOR_TSTEP, [RA, #20]
+  |.define FOR_EXT,  [RA, #24]; .define FOR_TEXT,  [RA, #28]
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RC = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  ldrd CARG12, [RA, BASE]!
+    if (op != BC_JFORL) {
+      |   add RC, PC, RC, lsl #2
+    }
+    if (!vk) {
+      |  ldrd CARG34, FOR_STOP
+      |   checktp CARG2, LJ_TISNUM
+      |  ldr RB, FOR_TSTEP
+      |   bne >5
+      |  checktp CARG4, LJ_TISNUM
+      |   ldr CARG4, FOR_STEP
+      |  checktpeq RB, LJ_TISNUM
+      |  bne ->vmeta_for
+      |  cmp CARG4, #0
+      |  blt >4
+      |  cmp CARG1, CARG3
+    } else {
+      |  ldrd CARG34, FOR_STEP
+      |   checktp CARG2, LJ_TISNUM
+      |   bne >5
+      |  adds CARG1, CARG1, CARG3
+      |   ldr CARG4, FOR_STOP
+      if (op == BC_IFORL) {
+	|  addvs RC, PC, #0x20000		// Overflow: prevent branch.
+      } else {
+	|  bvs >2				// Overflow: do not enter mcode.
+      }
+      |  cmp CARG3, #0
+      |  blt >4
+      |  cmp CARG1, CARG4
+    }
+    |1:
+    if (op == BC_FORI) {
+      |  subgt PC, RC, #0x20000
+    } else if (op == BC_JFORI) {
+      |  sub PC, RC, #0x20000
+      |  ldrhle RC, [PC, #-2]
+    } else if (op == BC_IFORL) {
+      |  suble PC, RC, #0x20000
+    }
+    if (vk) {
+      |  strd CARG12, FOR_IDX
+    }
+    |2:
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, FOR_EXT
+    if (op == BC_JFORI || op == BC_JFORL) {
+      |  ble =>BC_JLOOP
+    }
+    |3:
+    |   ins_next3
+    |
+    |4:  // Invert check for negative step.
+    if (!vk) {
+      |  cmp CARG3, CARG1
+    } else {
+      |  cmp CARG4, CARG1
+    }
+    |  b <1
+    |
+    |5:  // FP loop.
+    if (!vk) {
+      |  cmnlo CARG4, #-LJ_TISNUM
+      |  cmnlo RB, #-LJ_TISNUM
+      |  bhs ->vmeta_for
+      |.if FPU
+      |  vldr d0, FOR_IDX
+      |  vldr d1, FOR_STOP
+      |  cmp RB, #0
+      |  vstr d0, FOR_EXT
+      |.else
+      |  cmp RB, #0
+      |   strd CARG12, FOR_EXT
+      |  blt >8
+      |.endif
+    } else {
+      |.if FPU
+      |  vldr d0, FOR_IDX
+      |  vldr d2, FOR_STEP
+      |  vldr d1, FOR_STOP
+      |  cmp CARG4, #0
+      |  vadd.f64 d0, d0, d2
+      |.else
+      |  cmp CARG4, #0
+      |  blt >8
+      |  bl extern __aeabi_dadd
+      |   strd CARG12, FOR_IDX
+      |  ldrd CARG34, FOR_STOP
+      |   strd CARG12, FOR_EXT
+      |.endif
+    }
+    |6:
+    |.if FPU
+    |  vcmpge.f64 d0, d1
+    |  vcmplt.f64 d1, d0
+    |  vmrs
+    |.else
+    |  bl extern __aeabi_cdcmple
+    |.endif
+    if (vk) {
+      |.if FPU
+      |  vstr d0, FOR_IDX
+      |  vstr d0, FOR_EXT
+      |.endif
+    }
+    if (op == BC_FORI) {
+      |  subhi PC, RC, #0x20000
+    } else if (op == BC_JFORI) {
+      |  sub PC, RC, #0x20000
+      |  ldrhls RC, [PC, #-2]
+      |  bls =>BC_JLOOP
+    } else if (op == BC_IFORL) {
+      |  subls PC, RC, #0x20000
+    } else {
+      |  bls =>BC_JLOOP
+    }
+    |  ins_next1
+    |  ins_next2
+    |  b <3
+    |
+    |.if not FPU
+    |8:  // Invert check for negative step.
+    if (vk) {
+      |  bl extern __aeabi_dadd
+      |  strd CARG12, FOR_IDX
+      |  strd CARG12, FOR_EXT
+    }
+    |  mov CARG3, CARG1
+    |  mov CARG4, CARG2
+    |  ldrd CARG12, FOR_STOP
+    |  b <6
+    |.endif
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RC = target
+    |  ldrd CARG12, [RA, BASE]!
+    if (op == BC_JITERL) {
+      |  cmn CARG2, #-LJ_TNIL		// Stop if iterator returned nil.
+      |  strdne CARG12, [RA, #-8]
+      |  bne =>BC_JLOOP
+    } else {
+      |   add RC, PC, RC, lsl #2
+      |  // STALL: load CARG12.
+      |  cmn CARG2, #-LJ_TNIL		// Stop if iterator returned nil.
+      |  subne PC, RC, #0x20000		// Otherwise save control var + branch.
+      |  strdne CARG12, [RA, #-8]
+    }
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RC = target (loop extent)
+    |  // Note: RA/RC is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RC = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base (ignored), RC = traceno
+    |  ldr CARG1, [DISPATCH, #DISPATCH_J(trace)]
+    |   mov CARG2, #0  // Traces on ARM don't store the trace number, so use 0.
+    |  ldr TRACE:RC, [CARG1, RC, lsl #2]
+    |   st_vmstate CARG2
+    |  ldr RA, TRACE:RC->mcode
+    |   str BASE, [DISPATCH, #DISPATCH_GL(jit_base)]
+    |   str L, [DISPATCH, #DISPATCH_GL(jit_L)]
+    |  bx RA
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RC = target
+    |  add RC, PC, RC, lsl #2
+    |  sub PC, RC, #0x20000
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = LFUNC, RC = nargs*8
+    |  ldr CARG1, L->maxstack
+    |   ldrb CARG2, [PC, #-4+PC2PROTO(numparams)]
+    |    ldr KBASE, [PC, #-4+PC2PROTO(k)]
+    |  cmp RA, CARG1
+    |  bhi ->vm_growstack_l
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+      |  ins_next2
+    }
+    |2:
+    |  cmp NARGS8:RC, CARG2, lsl #3	// Check for missing parameters.
+    |   mvn CARG4, #~LJ_TNIL
+    |  blo >3
+    if (op == BC_JFUNCF) {
+      |  decode_RD RC, INS
+      |  b =>BC_JLOOP
+    } else {
+      |  ins_next3
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  strd CARG34, [BASE, NARGS8:RC]
+    |  add NARGS8:RC, NARGS8:RC, #8
+    |  b <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = LFUNC, RC = nargs*8
+    |  ldr CARG1, L->maxstack
+    |   add CARG4, BASE, RC
+    |  add RA, RA, RC
+    |   str LFUNC:CARG3, [CARG4]	// Store copy of LFUNC.
+    |   add CARG2, RC, #8+FRAME_VARG
+    |    ldr KBASE, [PC, #-4+PC2PROTO(k)]
+    |  cmp RA, CARG1
+    |   str CARG2, [CARG4, #4]		// Store delta + FRAME_VARG.
+    |  bhs ->vm_growstack_l
+    |  ldrb RB, [PC, #-4+PC2PROTO(numparams)]
+    |   mov RA, BASE
+    |   mov RC, CARG4
+    |  cmp RB, #0
+    |   add BASE, CARG4, #8
+    |  beq >3
+    |  mvn CARG3, #~LJ_TNIL
+    |1:
+    |  cmp RA, RC			// Less args than parameters?
+    |   ldrdlo CARG12, [RA], #8
+    |   movhs CARG2, CARG3
+    |    strlo CARG3, [RA, #-4]		// Clear old fixarg slot (help the GC).
+    |2:
+    |  subs RB, RB, #1
+    |   strd CARG12, [CARG4, #8]!
+    |  bne <1
+    |3:
+    |  ins_next
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  ldr CARG4, CFUNC:CARG3->f
+    } else {
+      |  ldr CARG4, [DISPATCH, #DISPATCH_GL(wrapf)]
+    }
+    |   add CARG2, RA, NARGS8:RC
+    |   ldr CARG1, L->maxstack
+    |  add RC, BASE, NARGS8:RC
+    |    str BASE, L->base
+    |   cmp CARG2, CARG1
+    |  str RC, L->top
+    if (op == BC_FUNCCW) {
+      |  ldr CARG2, CFUNC:CARG3->f
+    }
+    |    mv_vmstate CARG3, C
+    |  mov CARG1, L
+    |   bhi ->vm_growstack_c		// Need to grow stack.
+    |    st_vmstate CARG3
+    |  blx CARG4			// (lua_State *L [, lua_CFunction f])
+    |  // Returns nresults.
+    |  ldr BASE, L->base
+    |    mv_vmstate CARG3, INTERP
+    |   ldr CRET2, L->top
+    |   lsl RC, CRET1, #3
+    |    st_vmstate CARG3
+    |  ldr PC, [BASE, FRAME_PC]
+    |   sub RA, CRET2, RC		// RA = L->top - nresults*8
+    |  b ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",%%progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 0xe\n"				/* Return address is in lr. */
+	"\t.byte 0xc\n\t.uleb128 0xd\n\t.uleb128 0\n"	/* def_cfa sp */
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x8e\n\t.uleb128 1\n",		/* offset lr */
+	fcofs, CFRAME_SIZE);
+    for (i = 11; i >= (LJ_ARCH_HASFPU ? 5 : 4); i--)  /* offset r4-r11 */
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 2+(11-i));
+#if LJ_ARCH_HASFPU
+    for (i = 15; i >= 8; i--)  /* offset d8-d15 */
+      fprintf(ctx->fp, "\t.byte 5\n\t.uleb128 %d, %d\n",
+	64+2*i, 10+2*(15-i));
+    fprintf(ctx->fp, "\t.byte 0x84\n\t.uleb128 %d\n", 25);  /* offset r4 */
+#endif
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+	"\t.long lj_vm_ffi_call\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x8e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x8b\n\t.uleb128 2\n"		/* offset r11 */
+	"\t.byte 0x85\n\t.uleb128 3\n"		/* offset r5 */
+	"\t.byte 0x84\n\t.uleb128 4\n"		/* offset r4 */
+	"\t.byte 0xd\n\t.uleb128 0xb\n"		/* def_cfa_register r11 */
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/lib/luajit/src/vm_mips.dasc b/lib/luajit/src/vm_mips.dasc
new file mode 100644
index 00000000..0ec13e60
--- /dev/null
+++ b/lib/luajit/src/vm_mips.dasc
@@ -0,0 +1,4241 @@
+|// Low-level VM code for MIPS CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch mips
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|// Don't use: r0 = 0, r26/r27 = reserved, r28 = gp, r29 = sp, r31 = ra
+|
+|// The following must be C callee-save (but BASE is often refetched).
+|.define BASE,		r16	// Base of current Lua stack frame.
+|.define KBASE,		r17	// Constants of current Lua function.
+|.define PC,		r18	// Next PC.
+|.define DISPATCH,	r19	// Opcode dispatch table.
+|.define LREG,		r20	// Register holding lua_State (also in SAVE_L).
+|.define MULTRES,	r21	// Size of multi-result: (nresults+1)*8.
+|// NYI: r22 currently unused.
+|
+|.define JGL,		r30	// On-trace: global_State + 32768.
+|
+|// Constants for type-comparisons, stores and conversions. C callee-save.
+|.define TISNIL,	r30
+|.define TOBIT,		f30	// 2^52 + 2^51.
+|
+|// The following temporaries are not saved across C calls, except for RA.
+|.define RA,		r23	// Callee-save.
+|.define RB,		r8
+|.define RC,		r9
+|.define RD,		r10
+|.define INS,		r11
+|
+|.define AT,		r1	// Assembler temporary.
+|.define TMP0,		r12
+|.define TMP1,		r13
+|.define TMP2,		r14
+|.define TMP3,		r15
+|
+|// Calling conventions.
+|.define CFUNCADDR,	r25
+|.define CARG1,		r4
+|.define CARG2,		r5
+|.define CARG3,		r6
+|.define CARG4,		r7
+|
+|.define CRET1,		r2
+|.define CRET2,		r3
+|
+|.define FARG1,		f12
+|.define FARG2,		f14
+|
+|.define FRET1,		f0
+|.define FRET2,		f2
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.define CFRAME_SPACE,	112	// Delta for sp.
+|
+|.define SAVE_ERRF,	124(sp)	// 32 bit C frame info.
+|.define SAVE_NRES,	120(sp)
+|.define SAVE_CFRAME,	116(sp)
+|.define SAVE_L,	112(sp)
+|//----- 8 byte aligned, ^^^^ 16 byte register save area, owned by interpreter.
+|.define SAVE_GPR_,	72	// .. 72+10*4: 32 bit GPR saves.
+|.define SAVE_FPR_,	24	// .. 24+6*8: 64 bit FPR saves.
+|.define SAVE_PC,	20(sp)
+|.define ARG5,		16(sp)
+|.define CSAVE_4,	12(sp)
+|.define CSAVE_3,	8(sp)
+|.define CSAVE_2,	4(sp)
+|.define CSAVE_1,	0(sp)
+|//----- 8 byte aligned, ^^^^ 16 byte register save area, owned by callee.
+|
+|.define ARG5_OFS,	16
+|.define SAVE_MULTRES,	ARG5
+|
+|.macro saveregs
+|  addiu sp, sp, -CFRAME_SPACE
+|  sw ra, SAVE_GPR_+9*4(sp)
+|  sw r30, SAVE_GPR_+8*4(sp)
+|   sdc1 f30, SAVE_FPR_+5*8(sp)
+|  sw r23, SAVE_GPR_+7*4(sp)
+|  sw r22, SAVE_GPR_+6*4(sp)
+|   sdc1 f28, SAVE_FPR_+4*8(sp)
+|  sw r21, SAVE_GPR_+5*4(sp)
+|  sw r20, SAVE_GPR_+4*4(sp)
+|   sdc1 f26, SAVE_FPR_+3*8(sp)
+|  sw r19, SAVE_GPR_+3*4(sp)
+|  sw r18, SAVE_GPR_+2*4(sp)
+|   sdc1 f24, SAVE_FPR_+2*8(sp)
+|  sw r17, SAVE_GPR_+1*4(sp)
+|  sw r16, SAVE_GPR_+0*4(sp)
+|   sdc1 f22, SAVE_FPR_+1*8(sp)
+|   sdc1 f20, SAVE_FPR_+0*8(sp)
+|.endmacro
+|
+|.macro restoreregs_ret
+|  lw ra, SAVE_GPR_+9*4(sp)
+|  lw r30, SAVE_GPR_+8*4(sp)
+|   ldc1 f30, SAVE_FPR_+5*8(sp)
+|  lw r23, SAVE_GPR_+7*4(sp)
+|  lw r22, SAVE_GPR_+6*4(sp)
+|   ldc1 f28, SAVE_FPR_+4*8(sp)
+|  lw r21, SAVE_GPR_+5*4(sp)
+|  lw r20, SAVE_GPR_+4*4(sp)
+|   ldc1 f26, SAVE_FPR_+3*8(sp)
+|  lw r19, SAVE_GPR_+3*4(sp)
+|  lw r18, SAVE_GPR_+2*4(sp)
+|   ldc1 f24, SAVE_FPR_+2*8(sp)
+|  lw r17, SAVE_GPR_+1*4(sp)
+|  lw r16, SAVE_GPR_+0*4(sp)
+|   ldc1 f22, SAVE_FPR_+1*8(sp)
+|   ldc1 f20, SAVE_FPR_+0*8(sp)
+|  jr ra
+|  addiu sp, sp, CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; .long 0xf0f0f0f0; .endmacro
+|
+|// Macros to mark delay slots.
+|.macro ., a; a; .endmacro
+|.macro ., a,b; a,b; .endmacro
+|.macro ., a,b,c; a,b,c; .endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Endian-specific defines.
+|.define FRAME_PC,	LJ_ENDIAN_SELECT(-4,-8)
+|.define FRAME_FUNC,	LJ_ENDIAN_SELECT(-8,-4)
+|.define HI,		LJ_ENDIAN_SELECT(4,0)
+|.define LO,		LJ_ENDIAN_SELECT(0,4)
+|.define OFS_RD,	LJ_ENDIAN_SELECT(2,0)
+|.define OFS_RA,	LJ_ENDIAN_SELECT(1,2)
+|.define OFS_OP,	LJ_ENDIAN_SELECT(0,3)
+|
+|// Instruction decode.
+|.macro decode_OP1, dst, ins; andi dst, ins, 0xff; .endmacro
+|.macro decode_OP4a, dst, ins; andi dst, ins, 0xff; .endmacro
+|.macro decode_OP4b, dst; sll dst, dst, 2; .endmacro
+|.macro decode_RC4a, dst, ins; srl dst, ins, 14; .endmacro
+|.macro decode_RC4b, dst; andi dst, dst, 0x3fc; .endmacro
+|.macro decode_RD4b, dst; sll dst, dst, 2; .endmacro
+|.macro decode_RA8a, dst, ins; srl dst, ins, 5; .endmacro
+|.macro decode_RA8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RB8a, dst, ins; srl dst, ins, 21; .endmacro
+|.macro decode_RB8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RD8a, dst, ins; srl dst, ins, 16; .endmacro
+|.macro decode_RD8b, dst; sll dst, dst, 3; .endmacro
+|.macro decode_RDtoRC8, dst, src; andi dst, src, 0x7f8; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  lw INS, 0(PC)
+|   addiu PC, PC, 4
+|.endmacro
+|// Instruction decode+dispatch.
+|.macro ins_NEXT2
+|  decode_OP4a TMP1, INS
+|  decode_OP4b TMP1
+|  addu TMP0, DISPATCH, TMP1
+|   decode_RD8a RD, INS
+|  lw AT, 0(TMP0)
+|   decode_RA8a RA, INS
+|   decode_RD8b RD
+|  jr AT
+|   decode_RA8b RA
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  lw PC, LFUNC:RB->pc
+|  lw INS, 0(PC)
+|   addiu PC, PC, 4
+|  decode_OP4a TMP1, INS
+|   decode_RA8a RA, INS
+|  decode_OP4b TMP1
+|   decode_RA8b RA
+|  addu TMP0, DISPATCH, TMP1
+|  lw TMP0, 0(TMP0)
+|  jr TMP0
+|   addu RA, RA, BASE
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  sw PC, FRAME_PC(BASE)
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|.macro branch_RD
+|  srl TMP0, RD, 1
+|  lui AT, (-(BCBIAS_J*4 >> 16) & 65535)
+|  addu TMP0, TMP0, AT
+|  addu PC, PC, TMP0
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+#define GG_DISP2GOT		(GG_OFS(got) - GG_OFS(dispatch))
+#define DISPATCH_GOT(name)	(GG_DISP2GOT + 4*LJ_GOT_##name)
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro load_got, func
+|  lw CFUNCADDR, DISPATCH_GOT(func)(DISPATCH)
+|.endmacro
+|// Much faster. Sadly, there's no easy way to force the required code layout.
+|// .macro call_intern, func; bal extern func; .endmacro
+|.macro call_intern, func; jalr CFUNCADDR; .endmacro
+|.macro call_extern; jalr CFUNCADDR; .endmacro
+|.macro jmp_extern; jr CFUNCADDR; .endmacro
+|
+|.macro hotcheck, delta, target
+|  srl TMP1, PC, 1
+|  andi TMP1, TMP1, 126
+|  addu TMP1, TMP1, DISPATCH
+|  lhu TMP2, GG_DISP2HOT(TMP1)
+|  addiu TMP2, TMP2, -delta
+|  bltz TMP2, target
+|.  sh TMP2, GG_DISP2HOT(TMP1)
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP, ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL, ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state. Uses TMP0.
+|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
+|.macro st_vmstate; sw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp, target
+|  lw tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   andi mark, mark, ~LJ_GC_BLACK & 255		// black2gray(tab)
+|  sw tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   sb mark, tab->marked
+|  b target
+|.  sw tmp, tab->gclist
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: TMP2 = previous base.
+  |  andi AT, PC, FRAME_P
+  |  beqz AT, ->cont_dispatch
+  |.  li TMP1, LJ_TTRUE
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  lw PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
+  |  move BASE, TMP2			// Restore caller base.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   sw TMP1, FRAME_PC(RA)		// Prepend true to results.
+  |   addiu RA, RA, -8
+  |
+  |->vm_returnc:
+  |   addiu RD, RD, 8			// RD = (nresults+1)*8.
+  |  andi TMP0, PC, FRAME_TYPE
+  |   beqz RD, ->vm_unwind_c_eh
+  |.   li CRET1, LUA_YIELD
+  |  beqz TMP0, ->BC_RET_Z		// Handle regular return to Lua.
+  |.  move MULTRES, RD
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
+  |  // TMP0 = PC & FRAME_TYPE
+  |   li TMP2, -8
+  |  xori AT, TMP0, FRAME_C
+  |   and TMP2, PC, TMP2
+  |  bnez AT, ->vm_returnp
+  |   subu TMP2, BASE, TMP2		// TMP2 = previous base.
+  |
+  |  addiu TMP1, RD, -8
+  |   sw TMP2, L->base
+  |    li_vmstate C
+  |   lw TMP2, SAVE_NRES
+  |   addiu BASE, BASE, -8
+  |    st_vmstate
+  |  beqz TMP1, >2
+  |.   sll TMP2, TMP2, 3
+  |1:
+  |  addiu TMP1, TMP1, -8
+  |   ldc1 f0, 0(RA)
+  |    addiu RA, RA, 8
+  |   sdc1 f0, 0(BASE)
+  |  bnez TMP1, <1
+  |.  addiu BASE, BASE, 8
+  |
+  |2:
+  |  bne TMP2, RD, >6
+  |3:
+  |.  sw BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  lw TMP0, SAVE_CFRAME		// Restore previous C frame.
+  |   move CRET1, r0			// Ok return status for vm_pcall.
+  |  sw TMP0, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs_ret
+  |
+  |6:
+  |  lw TMP1, L->maxstack
+  |  slt AT, TMP2, RD
+  |  bnez AT, >7			// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |.  slt AT, BASE, TMP1
+  |  beqz AT, >8
+  |.  nop
+  |  sw TISNIL, HI(BASE)
+  |  addiu RD, RD, 8
+  |  b <2
+  |.  addiu BASE, BASE, 8
+  |
+  |7:  // Less results wanted.
+  |  subu TMP0, RD, TMP2
+  |  subu TMP0, BASE, TMP0		// Either keep top or shrink it.
+  |  b <3
+  |.  movn BASE, TMP0, TMP2		// LUA_MULTRET+1 case?
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  load_got lj_state_growstack
+  |   move MULTRES, RD
+  |  move CARG2, TMP2
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |    lw TMP2, SAVE_NRES
+  |  lw BASE, L->top			// Need the (realloced) L->top in BASE.
+  |   move RD, MULTRES
+  |  b <2
+  |.   sll TMP2, TMP2, 3
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  move sp, CARG1
+  |  move CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  lw L, SAVE_L
+  |   li TMP0, ~LJ_VMST_C
+  |  lw GL:TMP1, L->glref
+  |  b ->vm_leave_unw
+  |.  sw TMP0, GL:TMP1->vmstate
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  li AT, -4
+  |  and sp, CARG1, AT
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  lw L, SAVE_L
+  |     lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |     li TISNIL, LJ_TNIL
+  |  lw BASE, L->base
+  |   lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     mtc1 TMP3, TOBIT
+  |  li TMP1, LJ_TFALSE
+  |    li_vmstate INTERP
+  |  lw PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
+  |     cvt.d.s TOBIT, TOBIT
+  |  addiu RA, BASE, -8			// Results start at BASE-8.
+  |   addiu DISPATCH, DISPATCH, GG_G2DISP
+  |  sw TMP1, HI(RA)			// Prepend false to error message.
+  |    st_vmstate
+  |  b ->vm_returnc
+  |.  li RD, 16				// 2 results: false + error message.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  b >2
+  |.  li CARG2, LUA_MINSTACK
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  addu RC, BASE, RC
+  |   subu RA, RA, BASE
+  |  sw BASE, L->base
+  |   addiu PC, PC, 4			// Must point after first instruction.
+  |  sw RC, L->top
+  |   srl CARG2, RA, 3
+  |2:
+  |  // L->base = new base, L->top = top
+  |  load_got lj_state_growstack
+  |   sw PC, SAVE_PC
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  lw BASE, L->base
+  |  lw RC, L->top
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |  subu RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  move L, CARG1
+  |    lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  move BASE, CARG2
+  |    lbu TMP1, L->status
+  |   sw L, SAVE_L
+  |  li PC, FRAME_CP
+  |  addiu TMP0, sp, CFRAME_RESUME
+  |    addiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sw r0, SAVE_NRES
+  |   sw r0, SAVE_ERRF
+  |  sw TMP0, L->cframe
+  |   sw r0, SAVE_CFRAME
+  |    beqz TMP1, >3
+  |.  sw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |
+  |  // Resume after yield (like a return).
+  |  move RA, BASE
+  |   lw BASE, L->base
+  |   lw TMP1, L->top
+  |  lw PC, FRAME_PC(BASE)
+  |     lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   subu RD, TMP1, BASE
+  |     mtc1 TMP3, TOBIT
+  |    sb r0, L->status
+  |     cvt.d.s TOBIT, TOBIT
+  |    li_vmstate INTERP
+  |   addiu RD, RD, 8
+  |    st_vmstate
+  |   move MULTRES, RD
+  |  andi TMP0, PC, FRAME_TYPE
+  |  beqz TMP0, ->BC_RET_Z
+  |.    li TISNIL, LJ_TNIL
+  |  b ->vm_return
+  |.  nop
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  sw CARG4, SAVE_ERRF
+  |  b >1
+  |.  li PC, FRAME_CP
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  li PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  lw TMP1, L:CARG1->cframe
+  |   sw CARG3, SAVE_NRES
+  |    move L, CARG1
+  |   sw CARG1, SAVE_L
+  |    move BASE, CARG2
+  |  sw sp, L->cframe			// Add our C frame to cframe chain.
+  |    lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   sw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  sw TMP1, SAVE_CFRAME
+  |    addiu DISPATCH, DISPATCH, GG_G2DISP
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  lw TMP2, L->base			// TMP2 = old base (used in vmeta_call).
+  |     lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   lw TMP1, L->top
+  |     mtc1 TMP3, TOBIT
+  |  addu PC, PC, BASE
+  |   subu NARGS8:RC, TMP1, BASE
+  |  subu PC, PC, TMP2			// PC = frame delta + frame type
+  |     cvt.d.s TOBIT, TOBIT
+  |    li_vmstate INTERP
+  |     li TISNIL, LJ_TNIL
+  |    st_vmstate
+  |
+  |->vm_call_dispatch:
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  lw TMP0, FRAME_PC(BASE)
+  |  li AT, LJ_TFUNC
+  |  bne TMP0, AT, ->vmeta_call
+  |.  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  move L, CARG1
+  |   lw TMP0, L:CARG1->stack
+  |  sw CARG1, SAVE_L
+  |   lw TMP1, L->top
+  |  sw CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   subu TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
+  |    lw TMP1, L->cframe
+  |    sw sp, L->cframe			// Add our C frame to cframe chain.
+  |   sw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  sw r0, SAVE_ERRF			// No error function.
+  |  move CFUNCADDR, CARG4
+  |  jalr CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |.   sw TMP1, SAVE_CFRAME
+  |  move BASE, CRET1
+  |   lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |    li PC, FRAME_CP
+  |  bnez CRET1, <3			// Else continue with the call.
+  |.  addiu DISPATCH, DISPATCH, GG_G2DISP
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |.  nop
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
+  |// stack, so BASE doesn't need to be reloaded across these calls.
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
+  |  lw TMP0, -16+LO(BASE)		// Continuation.
+  |   move RB, BASE
+  |   move BASE, TMP2			// Restore caller BASE.
+  |    lw LFUNC:TMP1, FRAME_FUNC(TMP2)
+  |.if FFI
+  |  sltiu AT, TMP0, 2
+  |.endif
+  |     lw PC, -16+HI(RB)		// Restore PC from [cont|PC].
+  |   addu TMP2, RA, RD
+  |    lw TMP1, LFUNC:TMP1->pc
+  |.if FFI
+  |  bnez AT, >1
+  |.endif
+  |.  sw TISNIL, -8+HI(TMP2)		// Ensure one valid arg.
+  |  // BASE = base, RA = resultptr, RB = meta base
+  |  jr TMP0				// Jump to continuation.
+  |.  lw KBASE, PC2PROTO(k)(TMP1)
+  |
+  |.if FFI
+  |1:
+  |  bnez TMP0, ->cont_ffi_callback	// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |.  addiu TMP1, RB, -16
+  |  b ->vm_call_tail
+  |.  subu RC, TMP1, BASE
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, RB = meta base
+  |  lw INS, -4(PC)
+  |   addiu CARG2, RB, -16
+  |   ldc1 f0, 0(RA)
+  |  decode_RB8a MULTRES, INS
+  |   decode_RA8a RA, INS
+  |  decode_RB8b MULTRES
+  |   decode_RA8b RA
+  |  addu TMP1, BASE, MULTRES
+  |   sw BASE, L->base
+  |   subu CARG3, CARG2, TMP1
+  |  bne TMP1, CARG2, ->BC_CAT_Z
+  |.  sdc1 f0, 0(CARG2)
+  |  addu RA, BASE, RA
+  |  b ->cont_nop
+  |.  sdc1 f0, 0(RA)
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TSTR
+  |  sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP0, HI(CARG3)
+  |
+  |->vmeta_tgets:
+  |  addiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TTAB
+  |  sw TAB:RB, LO(CARG2)
+  |   addiu CARG3, DISPATCH, DISPATCH_GL(tmptv2)
+  |  sw TMP0, HI(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP1, HI(CARG3)
+  |
+  |->vmeta_tgetb:			// TMP0 = index
+  |  mtc1 TMP0, f0
+  |  cvt.d.w f0, f0
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  sdc1 f0, 0(CARG3)
+  |
+  |->vmeta_tgetv:
+  |1:
+  |  load_got lj_meta_tget
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  call_intern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |.  move CARG1, L
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  beqz CRET1, >3
+  |.  addiu TMP1, BASE, -FRAME_CONT
+  |  ldc1 f0, 0(CRET1)
+  |  ins_next1
+  |   sdc1 f0, 0(RA)
+  |  ins_next2
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  lw BASE, L->top
+  |  sw PC, -16+HI(BASE)		// [cont|PC]
+  |   subu PC, BASE, TMP1
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |  b ->vm_call_dispatch_f
+  |.  li NARGS8:RC, 16			// 2 args for func(t, k).
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TSTR
+  |  sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP0, HI(CARG3)
+  |
+  |->vmeta_tsets:
+  |  addiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TTAB
+  |  sw TAB:RB, LO(CARG2)
+  |   addiu CARG3, DISPATCH, DISPATCH_GL(tmptv2)
+  |  sw TMP0, HI(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP1, HI(CARG3)
+  |
+  |->vmeta_tsetb:			// TMP0 = index
+  |  mtc1 TMP0, f0
+  |  cvt.d.w f0, f0
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  sdc1 f0, 0(CARG3)
+  |
+  |->vmeta_tsetv:
+  |1:
+  |  load_got lj_meta_tset
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  call_intern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |.  move CARG1, L
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  beqz CRET1, >3
+  |.  ldc1 f0, 0(RA)
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  ins_next1
+  |   sdc1 f0, 0(CRET1)
+  |  ins_next2
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  addiu TMP1, BASE, -FRAME_CONT
+  |  lw BASE, L->top
+  |  sw PC, -16+HI(BASE)		// [cont|PC]
+  |   subu PC, BASE, TMP1
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |  sdc1 f0, 16(BASE)			// Copy value to third argument.
+  |  b ->vm_call_dispatch_f
+  |.  li NARGS8:RC, 24			// 3 args for func(t, k, v)
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  // CARG2, CARG3 are already set by BC_ISLT/BC_ISGE/BC_ISLE/BC_ISGT.
+  |  load_got lj_meta_comp
+  |  addiu PC, PC, -4
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  decode_OP1 CARG4, INS
+  |  call_intern lj_meta_comp	// (lua_State *L, TValue *o1, *o2, int op)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  sltiu AT, CRET1, 2
+  |  beqz AT, ->vmeta_binop
+  |   negu TMP2, CRET1
+  |4:
+  |  lhu RD, OFS_RD(PC)
+  |   addiu PC, PC, 4
+  |   lui TMP1, (-(BCBIAS_J*4 >> 16) & 65535)
+  |  sll RD, RD, 2
+  |  addu RD, RD, TMP1
+  |  and RD, RD, TMP2
+  |  addu PC, PC, RD
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  lbu TMP1, -4+OFS_RA(PC)
+  |   ldc1 f0, 0(RA)
+  |  sll TMP1, TMP1, 3
+  |  addu TMP1, BASE, TMP1
+  |  b ->cont_nop
+  |.  sdc1 f0, 0(TMP1)
+  |
+  |->cont_condt:			// RA = resultptr
+  |  lw TMP0, HI(RA)
+  |  sltiu AT, TMP0, LJ_TISTRUECOND
+  |  b <4
+  |.  negu TMP2, AT			// Branch if result is true.
+  |
+  |->cont_condf:			// RA = resultptr
+  |  lw TMP0, HI(RA)
+  |  sltiu AT, TMP0, LJ_TISTRUECOND
+  |  b <4
+  |.  addiu TMP2, AT, -1		// Branch if result is false.
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  load_got lj_meta_equal
+  |  addiu PC, PC, -4
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.  nop
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  load_got lj_meta_equal_cd
+  |  move CARG2, INS
+  |  addiu PC, PC, -4
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_meta_equal_cd	// (lua_State *L, BCIns op)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.  nop
+  |.endif
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_unm:
+  |  move CARG4, CARG3
+  |
+  |->vmeta_arith:
+  |  load_got lj_meta_arith
+  |  decode_OP1 TMP0, INS
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  move CARG2, RA
+  |  sw TMP0, ARG5
+  |  call_intern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |.  move CARG1, L
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  beqz CRET1, ->cont_nop
+  |.  nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  subu TMP1, CRET1, BASE
+  |   sw PC, -16+HI(CRET1)		// [cont|PC]
+  |   move TMP2, BASE
+  |  addiu PC, TMP1, FRAME_CONT
+  |   move BASE, CRET1
+  |  b ->vm_call_dispatch
+  |.  li NARGS8:RC, 16			// 2 args for func(o1, o2).
+  |
+  |->vmeta_len:
+  |  // CARG2 already set by BC_LEN.
+#if LJ_52
+  |  move MULTRES, CARG1
+#endif
+  |  load_got lj_meta_len
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_meta_len		// (lua_State *L, TValue *o)
+  |.  move CARG1, L
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  bnez CRET1, ->vmeta_binop		// Binop call for compatibility.
+  |.  nop
+  |  b ->BC_LEN_Z
+  |.  move CARG1, MULTRES
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+  |.  nop
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8
+  |  load_got lj_meta_call
+  |   sw TMP2, L->base			// This is the callers base!
+  |  addiu CARG2, BASE, -8
+  |   sw PC, SAVE_PC
+  |  addu CARG3, BASE, RC
+  |   move MULTRES, NARGS8:RC
+  |  call_intern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |.  move CARG1, L
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   addiu NARGS8:RC, MULTRES, 8	// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  load_got lj_meta_call
+  |   sw BASE, L->base
+  |  addiu CARG2, RA, -8
+  |   sw PC, SAVE_PC
+  |  addu CARG3, RA, RC
+  |   move MULTRES, NARGS8:RC
+  |  call_intern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |.  move CARG1, L
+  |  lw TMP1, FRAME_PC(BASE)
+  |   lw LFUNC:RB, FRAME_FUNC(RA)	// Guaranteed to be a function here.
+  |  b ->BC_CALLT_Z
+  |.  addiu NARGS8:RC, MULTRES, 8	// Got one more argument now.
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  load_got lj_meta_for
+  |   sw BASE, L->base
+  |  move CARG2, RA
+  |   sw PC, SAVE_PC
+  |  move MULTRES, INS
+  |  call_intern lj_meta_for	// (lua_State *L, TValue *base)
+  |.  move CARG1, L
+  |.if JIT
+  |  decode_OP1 TMP0, MULTRES
+  |  li AT, BC_JFORI
+  |.endif
+  |  decode_RA8a RA, MULTRES
+  |   decode_RD8a RD, MULTRES
+  |  decode_RA8b RA
+  |.if JIT
+  |  beq TMP0, AT, =>BC_JFORI
+  |.  decode_RD8b RD
+  |  b =>BC_FORI
+  |.  nop
+  |.else
+  |  b =>BC_FORI
+  |.  decode_RD8b RD
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  lw CARG3, HI(BASE)
+  |    lw CARG1, LO(BASE)
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw CARG3, HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.   lw CARG4, 8+HI(BASE)
+  |   lw CARG1, LO(BASE)
+  |    lw CARG2, 8+LO(BASE)
+  |.endmacro
+  |
+  |.macro .ffunc_n, name	// Caveat: has delay slot!
+  |->ff_ .. name:
+  |  lw CARG3, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  ldc1 FARG1, 0(BASE)
+  |  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name	// Caveat: has delay slot!
+  |->ff_ .. name:
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw CARG3, HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.  lw CARG4, 8+HI(BASE)
+  |  ldc1 FARG1, 0(BASE)
+  |  ldc1 FARG2, 8(BASE)
+  |  sltiu TMP0, CARG3, LJ_TISNUM
+  |  sltiu TMP1, CARG4, LJ_TISNUM
+  |  and TMP0, TMP0, TMP1
+  |  beqz TMP0, ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1 and has delay slot!
+  |.macro ffgccheck
+  |  lw TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+  |  lw TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+  |  subu AT, TMP0, TMP1
+  |  bgezal AT, ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  sltiu AT, CARG3, LJ_TISTRUECOND
+  |  beqz AT, ->fff_fallback
+  |.  addiu RA, BASE, -8
+  |  lw PC, FRAME_PC(BASE)
+  |  addiu RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
+  |  addu TMP2, RA, NARGS8:RC
+  |   sw CARG3, HI(RA)
+  |  addiu TMP1, BASE, 8
+  |  beq BASE, TMP2, ->fff_res		// Done if exactly 1 argument.
+  |.  sw CARG1, LO(RA)
+  |1:
+  |  ldc1 f0, 0(TMP1)
+  |  sdc1 f0, -8(TMP1)
+  |  bne TMP1, TMP2, <1
+  |.  addiu TMP1, TMP1, 8
+  |  b ->fff_res
+  |.  nop
+  |
+  |.ffunc type
+  |  lw CARG3, HI(BASE)
+  |  li TMP1, LJ_TISNUM
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  sltiu TMP0, CARG3, LJ_TISNUM
+  |  movz TMP1, CARG3, TMP0
+  |  not TMP1, TMP1
+  |  sll TMP1, TMP1, 3
+  |  addu TMP1, CFUNC:RB, TMP1
+  |  b ->fff_resn
+  |.  ldc1 FRET1, CFUNC:TMP1->upvalue
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  li AT, LJ_TTAB
+  |  bne CARG3, AT, >6
+  |.  li AT, LJ_TUDATA
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  lw TAB:CARG1, TAB:CARG1->metatable
+  |2:
+  |  lw STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
+  |  beqz TAB:CARG1, ->fff_restv
+  |.  li CARG3, LJ_TNIL
+  |  lw TMP0, TAB:CARG1->hmask
+  |   li CARG3, LJ_TTAB			// Use metatable as default result.
+  |  lw TMP1, STR:RC->hash
+  |  lw NODE:TMP2, TAB:CARG1->node
+  |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+  |  sll TMP0, TMP1, 5
+  |  sll TMP1, TMP1, 3
+  |  subu TMP1, TMP0, TMP1
+  |  addu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+  |  li AT, LJ_TSTR
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  lw CARG4, offsetof(Node, key)+HI(NODE:TMP2)
+  |   lw TMP0, offsetof(Node, key)+LO(NODE:TMP2)
+  |    lw NODE:TMP3, NODE:TMP2->next
+  |  bne CARG4, AT, >4
+  |.    lw CARG2, offsetof(Node, val)+HI(NODE:TMP2)
+  |  beq TMP0, STR:RC, >5
+  |.    lw TMP1, offsetof(Node, val)+LO(NODE:TMP2)
+  |4:
+  |  beqz NODE:TMP3, ->fff_restv	// Not found, keep default result.
+  |.  move NODE:TMP2, NODE:TMP3
+  |  b <3
+  |.  nop
+  |5:
+  |  beq CARG2, TISNIL, ->fff_restv	// Ditto for nil value.
+  |.  nop
+  |  move CARG3, CARG2			// Return value of mt.__metatable.
+  |  b ->fff_restv
+  |.  move CARG1, TMP1
+  |
+  |6:
+  |  beq CARG3, AT, <1
+  |.  sltiu TMP0, CARG3, LJ_TISNUM
+  |  li TMP1, LJ_TISNUM
+  |  movz TMP1, CARG3, TMP0
+  |  not TMP1, TMP1
+  |  sll TMP1, TMP1, 2
+  |  addu TMP1, DISPATCH, TMP1
+  |  b <2
+  |.  lw TAB:CARG1, DISPATCH_GL(gcroot[GCROOT_BASEMT])(TMP1)
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  li AT, LJ_TTAB
+  |  bne CARG3, AT, ->fff_fallback
+  |.  addiu CARG4, CARG4, -LJ_TTAB
+  |  lw TAB:TMP1, TAB:CARG1->metatable
+  |   lbu TMP3, TAB:CARG1->marked
+  |  or AT, CARG4, TAB:TMP1
+  |  bnez AT, ->fff_fallback
+  |.  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+  |  beqz AT, ->fff_restv
+  |.  sw TAB:CARG2, TAB:CARG1->metatable
+  |  barrierback TAB:CARG1, TMP3, TMP0, ->fff_restv
+  |
+  |.ffunc rawget
+  |  lw CARG4, HI(BASE)
+  |   sltiu AT, NARGS8:RC, 16
+  |    lw TAB:CARG2, LO(BASE)
+  |  load_got lj_tab_get
+  |  addiu CARG4, CARG4, -LJ_TTAB
+  |  or AT, AT, CARG4
+  |  bnez AT, ->fff_fallback
+  |   addiu CARG3, BASE, 8
+  |  call_intern lj_tab_get	// (lua_State *L, GCtab *t, cTValue *key)
+  |.  move CARG1, L
+  |  // Returns cTValue *.
+  |  b ->fff_resn
+  |.  ldc1 FRET1, 0(CRET1)
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  lw CARG1, HI(BASE)
+  |  xori AT, NARGS8:RC, 8
+  |  sltiu CARG1, CARG1, LJ_TISNUM
+  |  movn CARG1, r0, AT
+  |  beqz CARG1, ->fff_fallback		// Exactly one number argument.
+  |.  ldc1 FRET1, 0(BASE)
+  |  b ->fff_resn
+  |.  nop
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  li AT, LJ_TSTR
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq CARG3, AT, ->fff_restv			// String key?
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |.  lw TMP1, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
+  |  sltiu TMP0, CARG3, LJ_TISNUM
+  |  sltiu TMP1, TMP1, 1
+  |  and TMP0, TMP0, TMP1
+  |  beqz TMP0, ->fff_fallback
+  |.  sw BASE, L->base			// Add frame since C call can throw.
+  |  ffgccheck
+  |.  sw PC, SAVE_PC			// Redundant (but a defined value).
+  |  load_got lj_str_fromnum
+  |  move CARG1, L
+  |  call_intern lj_str_fromnum		// (lua_State *L, lua_Number *np)
+  |.  move CARG2, BASE
+  |  // Returns GCstr *.
+  |  li CARG3, LJ_TSTR
+  |  b ->fff_restv
+  |.  move CARG1, CRET1
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc next
+  |  lw CARG1, HI(BASE)
+  |   lw TAB:CARG2, LO(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  addu TMP2, BASE, NARGS8:RC
+  |  li AT, LJ_TTAB
+  |   sw TISNIL, HI(TMP2)		// Set missing 2nd arg to nil.
+  |  bne CARG1, AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+  |  load_got lj_tab_next
+  |   sw BASE, L->base			// Add frame since C call can throw.
+  |   sw BASE, L->top			// Dummy frame length is ok.
+  |  addiu CARG3, BASE, 8
+  |   sw PC, SAVE_PC
+  |  call_intern lj_tab_next		// (lua_State *L, GCtab *t, TValue *key)
+  |.  move CARG1, L
+  |  // Returns 0 at end of traversal.
+  |  beqz CRET1, ->fff_restv		// End of traversal: return nil.
+  |.  li CARG3, LJ_TNIL
+  |  ldc1 f0, 8(BASE)			// Copy key and value to results.
+  |    addiu RA, BASE, -8
+  |   ldc1 f2, 16(BASE)
+  |    li RD, (2+1)*8
+  |  sdc1 f0, 0(RA)
+  |  b ->fff_res
+  |.  sdc1 f2, 8(RA)
+  |
+  |.ffunc_1 pairs
+  |  li AT, LJ_TTAB
+  |  bne CARG3, AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+#if LJ_52
+  |  lw TAB:TMP2, TAB:CARG1->metatable
+  |   ldc1 f0, CFUNC:RB->upvalue[0]
+  |  bnez TAB:TMP2, ->fff_fallback
+#else
+  |  ldc1 f0, CFUNC:RB->upvalue[0]
+#endif
+  |.  addiu RA, BASE, -8
+  |   sw TISNIL, 8+HI(BASE)
+  |  li RD, (3+1)*8
+  |  b ->fff_res
+  |.  sdc1 f0, 0(RA)
+  |
+  |.ffunc ipairs_aux
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw CARG3, HI(BASE)
+  |    lw TAB:CARG1, LO(BASE)
+  |   lw CARG4, 8+HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.  ldc1 FARG2, 8(BASE)
+  |   addiu CARG3, CARG3, -LJ_TTAB
+  |  sltiu AT, CARG4, LJ_TISNUM
+  |   li TMP0, 1
+  |  movn AT, r0, CARG3
+  |   mtc1 TMP0, FARG1
+  |  beqz AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+  |   cvt.w.d FRET1, FARG2
+  |  cvt.d.w FARG1, FARG1
+  |   lw TMP0, TAB:CARG1->asize
+  |   lw TMP1, TAB:CARG1->array
+  |  mfc1 TMP2, FRET1
+  |   addiu RA, BASE, -8
+  |  add.d FARG2, FARG2, FARG1
+  |  addiu TMP2, TMP2, 1
+  |  sltu AT, TMP2, TMP0
+  |   sll TMP3, TMP2, 3
+  |   addu TMP3, TMP1, TMP3
+  |  beqz AT, >2			// Not in array part?
+  |.  sdc1 FARG2, 0(RA)
+  |  lw TMP2, HI(TMP3)
+  |  ldc1 f0, 0(TMP3)
+  |1:
+  |  beq TMP2, TISNIL, ->fff_res	// End of iteration, return 0 results.
+  |.  li RD, (0+1)*8
+  |   li RD, (2+1)*8
+  |  b ->fff_res
+  |.  sdc1 f0, 8(RA)
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  lw TMP0, TAB:CARG1->hmask
+  |  load_got lj_tab_getinth
+  |  beqz TMP0, ->fff_res
+  |.  li RD, (0+1)*8
+  |  call_intern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |.  move CARG2, TMP2
+  |  // Returns cTValue * or NULL.
+  |  beqz CRET1, ->fff_res
+  |.  li RD, (0+1)*8
+  |  lw TMP2, HI(CRET1)
+  |  b <1
+  |.  ldc1 f0, 0(CRET1)
+  |
+  |.ffunc_1 ipairs
+  |  li AT, LJ_TTAB
+  |  bne CARG3, AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+#if LJ_52
+  |  lw TAB:TMP2, TAB:CARG1->metatable
+  |   ldc1 f0, CFUNC:RB->upvalue[0]
+  |  bnez TAB:TMP2, ->fff_fallback
+#else
+  |  ldc1 f0, CFUNC:RB->upvalue[0]
+#endif
+  |.  addiu RA, BASE, -8
+  |   sw r0, 8+HI(BASE)
+  |   sw r0, 8+LO(BASE)
+  |  li RD, (3+1)*8
+  |  b ->fff_res
+  |.  sdc1 f0, 0(RA)
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |   move TMP2, BASE
+  |   addiu BASE, BASE, 8
+  |  // Remember active hook before pcall.
+  |  srl TMP3, TMP3, HOOK_ACTIVE_SHIFT
+  |  andi TMP3, TMP3, 1
+  |  addiu PC, TMP3, 8+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |.  addiu NARGS8:RC, NARGS8:RC, -8
+  |
+  |.ffunc xpcall
+  |    sltiu AT, NARGS8:RC, 16
+  |  lw CARG4, 8+HI(BASE)
+  |    bnez AT, ->fff_fallback
+  |.  ldc1 FARG2, 8(BASE)
+  |   ldc1 FARG1, 0(BASE)
+  |    lbu TMP1, DISPATCH_GL(hookmask)(DISPATCH)
+  |  li AT, LJ_TFUNC
+  |   move TMP2, BASE
+  |  bne CARG4, AT, ->fff_fallback  // Traceback must be a function.
+  |   addiu BASE, BASE, 16
+  |  // Remember active hook before pcall.
+  |  srl TMP3, TMP3, HOOK_ACTIVE_SHIFT
+  |   sdc1 FARG2, 0(TMP2)		// Swap function and traceback.
+  |  andi TMP3, TMP3, 1
+  |   sdc1 FARG1, 8(TMP2)
+  |  addiu PC, TMP3, 16+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |.  addiu NARGS8:RC, NARGS8:RC, -16
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  li AT, LJ_TTHREAD
+  |  bne CARG3, AT, ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  lw L:CARG1, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |  lbu TMP0, L:CARG1->status
+  |   lw TMP1, L:CARG1->cframe
+  |    lw CARG2, L:CARG1->top
+  |    lw TMP2, L:CARG1->base
+  |  addiu TMP3, TMP0, -LUA_YIELD
+  |  bgtz TMP3, ->fff_fallback		// st > LUA_YIELD?
+  |.   xor TMP2, TMP2, CARG2
+  |  bnez TMP1, ->fff_fallback		// cframe != 0?
+  |.  or AT, TMP2, TMP0
+  |  lw TMP0, L:CARG1->maxstack
+  |  beqz AT, ->fff_fallback		// base == top && st == 0?
+  |.  lw PC, FRAME_PC(BASE)
+  |  addu TMP2, CARG2, NARGS8:RC
+  |  sltu AT, TMP0, TMP2
+  |  bnez AT, ->fff_fallback		// Stack overflow?
+  |.  sw PC, SAVE_PC
+  |   sw BASE, L->base
+  |1:
+  |.if resume
+  |  addiu BASE, BASE, 8		// Keep resumed thread in stack for GC.
+  |  addiu NARGS8:RC, NARGS8:RC, -8
+  |  addiu TMP2, TMP2, -8
+  |.endif
+  |  sw TMP2, L:CARG1->top
+  |  addu TMP1, BASE, NARGS8:RC
+  |  move CARG3, CARG2
+  |  sw BASE, L->top
+  |2:  // Move args to coroutine.
+  |   ldc1 f0, 0(BASE)
+  |  sltu AT, BASE, TMP1
+  |  beqz AT, >3
+  |.  addiu BASE, BASE, 8
+  |   sdc1 f0, 0(CARG3)
+  |  b <2
+  |.  addiu CARG3, CARG3, 8
+  |3:
+  |  bal ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |.  move L:RA, L:CARG1
+  |  // Returns thread status.
+  |4:
+  |  lw TMP2, L:RA->base
+  |   sltiu AT, CRET1, LUA_YIELD+1
+  |  lw TMP3, L:RA->top
+  |    li_vmstate INTERP
+  |  lw BASE, L->base
+  |    st_vmstate
+  |   beqz AT, >8
+  |. subu RD, TMP3, TMP2
+  |   lw TMP0, L->maxstack
+  |  beqz RD, >6			// No results?
+  |.  addu TMP1, BASE, RD
+  |  sltu AT, TMP0, TMP1
+  |  bnez AT, >9			// Need to grow stack?
+  |.  addu TMP3, TMP2, RD
+  |  sw TMP2, L:RA->top			// Clear coroutine stack.
+  |  move TMP1, BASE
+  |5:  // Move results from coroutine.
+  |   ldc1 f0, 0(TMP2)
+  |  addiu TMP2, TMP2, 8
+  |  sltu AT, TMP2, TMP3
+  |   sdc1 f0, 0(TMP1)
+  |  bnez AT, <5
+  |.  addiu TMP1, TMP1, 8
+  |6:
+  |  andi TMP0, PC, FRAME_TYPE
+  |.if resume
+  |  li TMP1, LJ_TTRUE
+  |   addiu RA, BASE, -8
+  |  sw TMP1, -8+HI(BASE)		// Prepend true to results.
+  |  addiu RD, RD, 16
+  |.else
+  |  move RA, BASE
+  |  addiu RD, RD, 8
+  |.endif
+  |7:
+  |  sw PC, SAVE_PC
+  |  beqz TMP0, ->BC_RET_Z
+  |.  move MULTRES, RD
+  |  b ->vm_return
+  |.  nop
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  addiu TMP3, TMP3, -8
+  |   li TMP1, LJ_TFALSE
+  |  ldc1 f0, 0(TMP3)
+  |   sw TMP3, L:RA->top		// Remove error from coroutine stack.
+  |    li RD, (2+1)*8
+  |   sw TMP1, -8+HI(BASE)		// Prepend false to results.
+  |    addiu RA, BASE, -8
+  |  sdc1 f0, 0(BASE)			// Copy error message.
+  |  b <7
+  |.  andi TMP0, PC, FRAME_TYPE
+  |.else
+  |  load_got lj_ffh_coroutine_wrap_err
+  |  move CARG2, L:RA
+  |  call_intern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |.  move CARG1, L
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  load_got lj_state_growstack
+  |  srl CARG2, RD, 3
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  b <4
+  |.  li CRET1, 0
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  lw TMP0, L->cframe
+  |   addu TMP1, BASE, NARGS8:RC
+  |   sw BASE, L->base
+  |  andi TMP0, TMP0, CFRAME_RESUME
+  |   sw TMP1, L->top
+  |  beqz TMP0, ->fff_fallback
+  |.   li CRET1, LUA_YIELD
+  |  sw r0, L->cframe
+  |  b ->vm_leave_unw
+  |.   sb CRET1, L->status
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.ffunc_n math_abs
+  |.  abs.d FRET1, FARG1
+  |->fff_resn:
+  |  lw PC, FRAME_PC(BASE)
+  |  addiu RA, BASE, -8
+  |  b ->fff_res1
+  |.  sdc1 FRET1, -8(BASE)
+  |
+  |->fff_restv:
+  |  // CARG3/CARG1 = TValue result.
+  |  lw PC, FRAME_PC(BASE)
+  |   sw CARG3, -8+HI(BASE)
+  |  addiu RA, BASE, -8
+  |   sw CARG1, -8+LO(BASE)
+  |->fff_res1:
+  |  // RA = results, PC = return.
+  |  li RD, (1+1)*8
+  |->fff_res:
+  |  // RA = results, RD = (nresults+1)*8, PC = return.
+  |  andi TMP0, PC, FRAME_TYPE
+  |  bnez TMP0, ->vm_return
+  |.  move MULTRES, RD
+  |  lw INS, -4(PC)
+  |  decode_RB8a RB, INS
+  |  decode_RB8b RB
+  |5:
+  |  sltu AT, RD, RB
+  |  bnez AT, >6			// More results expected?
+  |.  decode_RA8a TMP0, INS
+  |  decode_RA8b TMP0
+  |  ins_next1
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |   subu BASE, RA, TMP0
+  |  ins_next2
+  |
+  |6:  // Fill up results with nil.
+  |  addu TMP1, RA, RD
+  |   addiu RD, RD, 8
+  |  b <5
+  |.  sw TISNIL, -8+HI(TMP1)
+  |
+  |.macro math_extern, func
+  |->ff_math_ .. func:
+  |  lw CARG3, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  load_got func
+  |  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  nop
+  |  call_extern
+  |.  ldc1 FARG1, 0(BASE)
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |.  load_got func
+  |  call_extern
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |.macro math_round, func
+  |  .ffunc_n math_ .. func
+  |.  nop
+  |  bal ->vm_ .. func
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.ffunc math_log
+  |  lw CARG3, HI(BASE)
+  |  li AT, 8
+  |  bne NARGS8:RC, AT, ->fff_fallback	// Exactly 1 argument.
+  |.  load_got log
+  |  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  nop
+  |  call_extern
+  |.  ldc1 FARG1, 0(BASE)
+  |  b ->fff_resn
+  |.  nop
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.ffunc_n math_sqrt
+  |.  sqrt.d FRET1, FARG1
+  |  b ->fff_resn
+  |.  nop
+  |
+  |->ff_math_deg:
+  |.ffunc_n math_rad
+  |.  ldc1 FARG2, CFUNC:RB->upvalue[0]
+  |  b ->fff_resn
+  |.  mul.d FRET1, FARG1, FARG2
+  |
+  |.ffunc_nn math_ldexp
+  |  cvt.w.d FARG2, FARG2
+  |  load_got ldexp
+  |  mfc1 CARG3, FARG2
+  |  call_extern
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |
+  |.ffunc_n math_frexp
+  |  load_got frexp
+  |   lw PC, FRAME_PC(BASE)
+  |  call_extern
+  |.  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |   lw TMP1, DISPATCH_GL(tmptv)(DISPATCH)
+  |  addiu RA, BASE, -8
+  |   mtc1 TMP1, FARG2
+  |  sdc1 FRET1, 0(RA)
+  |   cvt.d.w FARG2, FARG2
+  |   sdc1 FARG2, 8(RA)
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |.ffunc_n math_modf
+  |  load_got modf
+  |   lw PC, FRAME_PC(BASE)
+  |  call_extern
+  |.  addiu CARG3, BASE, -8
+  |  addiu RA, BASE, -8
+  |  sdc1 FRET1, 0(BASE)
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |.macro math_minmax, name, ismax
+  |->ff_ .. name:
+  |  lw CARG3, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  ldc1 FRET1, 0(BASE)
+  |  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  addu TMP2, BASE, NARGS8:RC
+  |  addiu TMP1, BASE, 8
+  |  beq TMP1, TMP2, ->fff_resn
+  |1:
+  |.  lw CARG3, HI(TMP1)
+  |  ldc1 FARG1, 0(TMP1)
+  |   addiu TMP1, TMP1, 8
+  |  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if ismax
+  |.  c.olt.d FARG1, FRET1
+  |.else
+  |.  c.olt.d FRET1, FARG1
+  |.endif
+  |  bne TMP1, TMP2, <1
+  |.  movf.d FRET1, FARG1
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |  math_minmax math_min, 0
+  |  math_minmax math_max, 1
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc_1 string_len
+  |  li AT, LJ_TSTR
+  |  bne CARG3, AT, ->fff_fallback
+  |.  nop
+  |  b ->fff_resi
+  |.  lw CRET1, STR:CARG1->len
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  lw CARG3, HI(BASE)
+  |   lw STR:CARG1, LO(BASE)
+  |  xori AT, NARGS8:RC, 8
+  |  addiu CARG3, CARG3, -LJ_TSTR
+  |  or AT, AT, CARG3
+  |  bnez AT, ->fff_fallback		// Need exactly 1 string argument.
+  |.  nop
+  |  lw TMP0, STR:CARG1->len
+  |   lbu TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |    addiu RA, BASE, -8
+  |  sltu RD, r0, TMP0
+  |   mtc1 TMP1, f0
+  |  addiu RD, RD, 1
+  |   cvt.d.w f0, f0
+  |  lw PC, FRAME_PC(BASE)
+  |  sll RD, RD, 3			// RD = ((str->len != 0)+1)*8
+  |  b ->fff_res
+  |.  sdc1 f0, 0(RA)
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  lw CARG3, HI(BASE)
+  |   ldc1 FARG1, 0(BASE)
+  |  li AT, 8
+  |  bne NARGS8:RC, AT, ->fff_fallback	// Exactly 1 argument.
+  |.  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  li CARG3, 1
+  |   cvt.w.d FARG1, FARG1
+  |  addiu CARG2, sp, ARG5_OFS
+  |  sltiu AT, TMP0, 256
+  |   mfc1 TMP0, FARG1
+  |  beqz AT, ->fff_fallback
+  |.  sw TMP0, ARG5
+  |->fff_newstr:
+  |  load_got lj_str_new
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |.  move CARG1, L
+  |  // Returns GCstr *.
+  |  lw BASE, L->base
+  |  move CARG1, CRET1
+  |  b ->fff_restv
+  |.  li CARG3, LJ_TSTR
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  addiu AT, NARGS8:RC, -16
+  |   lw CARG3, 16+HI(BASE)
+  |    ldc1 f0, 16(BASE)
+  |   lw TMP0, HI(BASE)
+  |    lw STR:CARG1, LO(BASE)
+  |  bltz AT, ->fff_fallback
+  |   lw CARG2, 8+HI(BASE)
+  |    ldc1 f2, 8(BASE)
+  |  beqz AT, >1
+  |.  li CARG4, -1
+  |   cvt.w.d f0, f0
+  |  sltiu AT, CARG3, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  mfc1 CARG4, f0
+  |1:
+  |  sltiu AT, CARG2, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  li AT, LJ_TSTR
+  |  cvt.w.d f2, f2
+  |  bne TMP0, AT, ->fff_fallback
+  |.  lw CARG2, STR:CARG1->len
+  |  mfc1 CARG3, f2
+  |  // STR:CARG1 = str, CARG2 = str->len, CARG3 = start, CARG4 = end
+  |  slt AT, CARG4, r0
+  |  addiu TMP0, CARG2, 1
+  |  addu TMP1, CARG4, TMP0
+  |   slt TMP3, CARG3, r0
+  |  movn CARG4, TMP1, AT		// if (end < 0) end += len+1
+  |   addu TMP1, CARG3, TMP0
+  |   movn CARG3, TMP1, TMP3		// if (start < 0) start += len+1
+  |   li TMP2, 1
+  |  slt AT, CARG4, r0
+  |   slt TMP3, r0, CARG3
+  |  movn CARG4, r0, AT			// if (end < 0) end = 0
+  |   movz CARG3, TMP2, TMP3		// if (start < 1) start = 1
+  |  slt AT, CARG2, CARG4
+  |  movn CARG4, CARG2, AT		// if (end > len) end = len
+  |   addu CARG2, STR:CARG1, CARG3
+  |  subu CARG3, CARG4, CARG3		// len = end - start
+  |   addiu CARG2, CARG2, sizeof(GCstr)-1
+  |  bgez CARG3, ->fff_newstr
+  |.  addiu CARG3, CARG3, 1		// len++
+  |->fff_emptystr:  // Return empty string.
+  |  addiu STR:CARG1, DISPATCH, DISPATCH_GL(strempty)
+  |  b ->fff_restv
+  |.  li CARG3, LJ_TSTR
+  |
+  |.ffunc string_rep			// Only handle the 1-char case inline.
+  |  ffgccheck
+  |  lw TMP0, HI(BASE)
+  |   addiu AT, NARGS8:RC, -16		// Exactly 2 arguments.
+  |  lw CARG4, 8+HI(BASE)
+  |   lw STR:CARG1, LO(BASE)
+  |  addiu TMP0, TMP0, -LJ_TSTR
+  |   ldc1 f0, 8(BASE)
+  |  or AT, AT, TMP0
+  |  bnez AT, ->fff_fallback
+  |.  sltiu AT, CARG4, LJ_TISNUM
+  |   cvt.w.d f0, f0
+  |  beqz AT, ->fff_fallback
+  |.  lw TMP0, STR:CARG1->len
+  |   mfc1 CARG3, f0
+  |  lw TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  li AT, 1
+  |   blez CARG3, ->fff_emptystr	// Count <= 0?
+  |.   sltu AT, AT, TMP0
+  |  beqz TMP0, ->fff_emptystr		// Zero length string?
+  |.  sltu TMP0, TMP1, CARG3
+  |  or AT, AT, TMP0
+  |   lw CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  bnez AT, ->fff_fallback		// Fallback for > 1-char strings.
+  |.  lbu TMP0, STR:CARG1[1]
+  |  addu TMP2, CARG2, CARG3
+  |1:  // Fill buffer with char. Yes, this is suboptimal code (do you care?).
+  |  addiu TMP2, TMP2, -1
+  |  sltu AT, CARG2, TMP2
+  |  bnez AT, <1
+  |.  sb TMP0, 0(TMP2)
+  |  b ->fff_newstr
+  |.  nop
+  |
+  |.ffunc string_reverse
+  |  ffgccheck
+  |  lw CARG3, HI(BASE)
+  |   lw STR:CARG1, LO(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  li AT, LJ_TSTR
+  |  bne CARG3, AT, ->fff_fallback
+  |.  lw TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  lw CARG3, STR:CARG1->len
+  |   addiu CARG1, STR:CARG1, #STR
+  |   lw CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  sltu AT, TMP1, CARG3
+  |  bnez AT, ->fff_fallback
+  |.  addu TMP3, CARG1, CARG3
+  |  addu CARG4, CARG2, CARG3
+  |1:  // Reverse string copy.
+  |   lbu TMP1, 0(CARG1)
+  |  sltu AT, CARG1, TMP3
+  |  beqz AT, ->fff_newstr
+  |.  addiu CARG1, CARG1, 1
+  |  addiu CARG4, CARG4, -1
+  |  b <1
+  |   sb TMP1, 0(CARG4)
+  |
+  |.macro ffstring_case, name, lo
+  |  .ffunc name
+  |  ffgccheck
+  |  lw CARG3, HI(BASE)
+  |   lw STR:CARG1, LO(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  li AT, LJ_TSTR
+  |  bne CARG3, AT, ->fff_fallback
+  |.  lw TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  lw CARG3, STR:CARG1->len
+  |   addiu CARG1, STR:CARG1, #STR
+  |   lw CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  sltu AT, TMP1, CARG3
+  |  bnez AT, ->fff_fallback
+  |.  addu TMP3, CARG1, CARG3
+  |  move CARG4, CARG2
+  |1:  // ASCII case conversion.
+  |   lbu TMP1, 0(CARG1)
+  |  sltu AT, CARG1, TMP3
+  |  beqz AT, ->fff_newstr
+  |.  addiu TMP0, TMP1, -lo
+  |   xori TMP2, TMP1, 0x20
+  |   sltiu AT, TMP0, 26
+  |   movn TMP1, TMP2, AT
+  |  addiu CARG1, CARG1, 1
+  |   sb TMP1, 0(CARG4)
+  |  b <1
+  |.  addiu CARG4, CARG4, 1
+  |.endmacro
+  |
+  |ffstring_case string_lower, 65
+  |ffstring_case string_upper, 97
+  |
+  |//-- Table library ------------------------------------------------------
+  |
+  |.ffunc_1 table_getn
+  |  li AT, LJ_TTAB
+  |  bne CARG3, AT, ->fff_fallback
+  |.  load_got lj_tab_len
+  |  call_intern lj_tab_len		// (GCtab *t)
+  |.  nop
+  |  // Returns uint32_t (but less than 2^31).
+  |  b ->fff_resi
+  |.  nop
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_n bit_..name
+  |.  add.d FARG1, FARG1, TOBIT
+  |  mfc1 CRET1, FARG1
+  |.endmacro
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  addiu TMP1, BASE, 8
+  |  addu TMP2, BASE, NARGS8:RC
+  |1:
+  |  lw CARG4, HI(TMP1)
+  |  beq TMP1, TMP2, ->fff_resi
+  |.  ldc1 FARG1, 0(TMP1)
+  |  sltiu AT, CARG4, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |  add.d FARG1, FARG1, TOBIT
+  |  mfc1 CARG2, FARG1
+  |  ins CRET1, CRET1, CARG2
+  |  b <1
+  |.  addiu TMP1, TMP1, 8
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, or
+  |.ffunc_bit_op bxor, xor
+  |
+  |.ffunc_bit bswap
+  |  srl TMP0, CRET1, 24
+  |   srl TMP2, CRET1, 8
+  |  sll TMP1, CRET1, 24
+  |   andi TMP2, TMP2, 0xff00
+  |  or TMP0, TMP0, TMP1
+  |   andi CRET1, CRET1, 0xff00
+  |  or TMP0, TMP0, TMP2
+  |   sll CRET1, CRET1, 8
+  |  b ->fff_resi
+  |.  or CRET1, TMP0, CRET1
+  |
+  |.ffunc_bit bnot
+  |  b ->fff_resi
+  |.  not CRET1, CRET1
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |  .ffunc_nn bit_..name
+  |.  add.d FARG1, FARG1, TOBIT
+  |  add.d FARG2, FARG2, TOBIT
+  |  mfc1 CARG1, FARG1
+  |  mfc1 CARG2, FARG2
+  |.if shmod == 1
+  |  li AT, 32
+  |  subu TMP0, AT, CARG2
+  |  sllv CARG2, CARG1, CARG2
+  |  srlv CARG1, CARG1, TMP0
+  |.elif shmod == 2
+  |  li AT, 32
+  |  subu TMP0, AT, CARG2
+  |  srlv CARG2, CARG1, CARG2
+  |  sllv CARG1, CARG1, TMP0
+  |.endif
+  |  b ->fff_resi
+  |.  ins CRET1, CARG1, CARG2
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, sllv, 0
+  |.ffunc_bit_sh rshift, srlv, 0
+  |.ffunc_bit_sh arshift, srav, 0
+  |// Can't use rotrv, since it's only in MIPS32R2.
+  |.ffunc_bit_sh rol, or, 1
+  |.ffunc_bit_sh ror, or, 2
+  |
+  |.ffunc_bit tobit
+  |->fff_resi:
+  |  mtc1 CRET1, FRET1
+  |  b ->fff_resn
+  |.  cvt.d.w FRET1, FRET1
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RB = CFUNC, RC = nargs*8
+  |  lw TMP3, CFUNC:RB->f
+  |    addu TMP1, BASE, NARGS8:RC
+  |   lw PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
+  |    addiu TMP0, TMP1, 8*LUA_MINSTACK
+  |     lw TMP2, L->maxstack
+  |   sw PC, SAVE_PC			// Redundant (but a defined value).
+  |  sltu AT, TMP2, TMP0
+  |     sw BASE, L->base
+  |    sw TMP1, L->top
+  |  bnez AT, >5			// Need to grow stack.
+  |.  move CFUNCADDR, TMP3
+  |  jalr TMP3				// (lua_State *L)
+  |.  move CARG1, L
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  lw BASE, L->base
+  |   sll RD, CRET1, 3
+  |  bgtz CRET1, ->fff_res		// Returned nresults+1?
+  |.  addiu RA, BASE, -8
+  |1:  // Returned 0 or -1: retry fast path.
+  |  lw TMP0, L->top
+  |   lw LFUNC:RB, FRAME_FUNC(BASE)
+  |  bnez CRET1, ->vm_call_tail		// Returned -1?
+  |.  subu NARGS8:RC, TMP0, BASE
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  andi TMP0, PC, FRAME_TYPE
+  |   li AT, -4
+  |  bnez TMP0, >3
+  |.  and TMP1, PC, AT
+  |  lbu TMP1, OFS_RA(PC)
+  |  sll TMP1, TMP1, 3
+  |  addiu TMP1, TMP1, 8
+  |3:
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |.  subu TMP2, BASE, TMP1
+  |
+  |5:  // Grow stack for fallback handler.
+  |  load_got lj_state_growstack
+  |  li CARG2, LUA_MINSTACK
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  lw BASE, L->base
+  |  b <1
+  |.  li CRET1, 0			// Force retry.
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  move MULTRES, ra
+  |  load_got lj_gc_step
+  |   sw BASE, L->base
+  |  addu TMP0, BASE, NARGS8:RC
+  |   sw PC, SAVE_PC			// Redundant (but a defined value).
+  |  sw TMP0, L->top
+  |  call_intern lj_gc_step		// (lua_State *L)
+  |.  move CARG1, L
+  |   lw BASE, L->base
+  |  move ra, MULTRES
+  |    lw TMP0, L->top
+  |  lw CFUNC:RB, FRAME_FUNC(BASE)
+  |  jr ra
+  |.  subu NARGS8:RC, TMP0, BASE
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi AT, TMP3, HOOK_VMEVENT	// No recording while in vmevent.
+  |  bnez AT, >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |.  lw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE
+  |  bnez AT, >1
+  |.  addiu TMP2, TMP2, -1
+  |  andi AT, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqz AT, >1
+  |.  nop
+  |  b >1
+  |.  sw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE		// Hook already active?
+  |  beqz AT, >1
+  |5:  // Re-dispatch to static ins.
+  |.  lw AT, GG_DISP2STATIC(TMP0)	// Assumes TMP0 holds DISPATCH+OP*4.
+  |  jr AT
+  |.  nop
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  lw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE		// Hook already active?
+  |  bnez AT, <5
+  |.  andi AT, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqz AT, <5
+  |.  addiu TMP2, TMP2, -1
+  |  beqz TMP2, >1
+  |.  sw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, LUA_MASKLINE
+  |  beqz AT, <5
+  |1:
+  |.  load_got lj_dispatch_ins
+  |   sw MULTRES, SAVE_MULTRES
+  |  move CARG2, PC
+  |   sw BASE, L->base
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  call_intern lj_dispatch_ins	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |3:
+  |  lw BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  lw INS, -4(PC)
+  |  decode_OP4a TMP1, INS
+  |  decode_OP4b TMP1
+  |  addu TMP0, DISPATCH, TMP1
+  |   decode_RD8a RD, INS
+  |  lw AT, GG_DISP2STATIC(TMP0)
+  |   decode_RA8a RA, INS
+  |   decode_RD8b RD
+  |  jr AT
+  |   decode_RA8b RA
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  addiu PC, PC, 4
+  |  b <4
+  |.  lw MULTRES, -24+LO(RB)		// Restore MULTRES for *M ins.
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+  |   addiu CARG1, DISPATCH, GG_DISP2J
+  |   sw PC, SAVE_PC
+  |  lw TMP1, LFUNC:TMP1->pc
+  |   move CARG2, PC
+  |   sw L, DISPATCH_J(L)(DISPATCH)
+  |  lbu TMP1, PC2PROTO(framesize)(TMP1)
+  |  load_got lj_trace_hot
+  |   sw BASE, L->base
+  |  sll TMP1, TMP1, 3
+  |  addu TMP1, BASE, TMP1
+  |  call_intern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |.  sw TMP1, L->top
+  |  b <3
+  |.  nop
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |.if JIT
+  |  b >1
+  |.endif
+  |.  move CARG2, PC
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  ori CARG2, PC, 1
+  |1:
+  |.endif
+  |  load_got lj_dispatch_call
+  |  addu TMP0, BASE, RC
+  |   sw PC, SAVE_PC
+  |   sw BASE, L->base
+  |  subu RA, RA, BASE
+  |   sw TMP0, L->top
+  |  call_intern lj_dispatch_call	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |  // Returns ASMFunction.
+  |  lw BASE, L->base
+  |   lw TMP0, L->top
+  |   sw r0, SAVE_PC			// Invalidate for subsequent line hook.
+  |  subu NARGS8:RC, TMP0, BASE
+  |  addu RA, BASE, RA
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |  jr CRET1
+  |.  lw INS, -4(PC)
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro savex_, a, b
+  |  sdc1 f..a, 16+a*8(sp)
+  |  sw r..a, 16+32*8+a*4(sp)
+  |  sw r..b, 16+32*8+b*4(sp)
+  |.endmacro
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  addiu sp, sp, -(16+32*8+32*4)
+  |  savex_ 0, 1
+  |  savex_ 2, 3
+  |  savex_ 4, 5
+  |  savex_ 6, 7
+  |  savex_ 8, 9
+  |  savex_ 10, 11
+  |  savex_ 12, 13
+  |  savex_ 14, 15
+  |  savex_ 16, 17
+  |  savex_ 18, 19
+  |  savex_ 20, 21
+  |  savex_ 22, 23
+  |  savex_ 24, 25
+  |  savex_ 26, 27
+  |  sdc1 f28, 16+28*8(sp)
+  |  sw r28, 16+32*8+28*4(sp)
+  |  sdc1 f30, 16+30*8(sp)
+  |  sw r30, 16+32*8+30*4(sp)
+  |  sw r0, 16+32*8+31*4(sp)		// Clear RID_TMP.
+  |  li_vmstate EXIT
+  |   addiu TMP2, sp, 16+32*8+32*4	// Recompute original value of sp.
+  |  addiu DISPATCH, JGL, -GG_DISP2G-32768
+  |  lw TMP1, 0(TMP2)			// Load exit number.
+  |  st_vmstate
+  |   sw TMP2, 16+32*8+29*4(sp)		// Store sp in RID_SP.
+  |  lw L, DISPATCH_GL(jit_L)(DISPATCH)
+  |  lw BASE, DISPATCH_GL(jit_base)(DISPATCH)
+  |  load_got lj_trace_exit
+  |  sw L, DISPATCH_J(L)(DISPATCH)
+  |  sw ra, DISPATCH_J(parent)(DISPATCH)  // Store trace number.
+  |  sw TMP1, DISPATCH_J(exitno)(DISPATCH)  // Store exit number.
+  |  addiu CARG1, DISPATCH, GG_DISP2J
+  |  sw BASE, L->base
+  |  call_intern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |.  addiu CARG2, sp, 16
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  lw TMP1, L->cframe
+  |  li AT, -4
+  |   lw BASE, L->base
+  |  and sp, TMP1, AT
+  |   lw PC, SAVE_PC			// Get SAVE_PC.
+  |  b >1
+  |.  sw L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |.endif
+  |->vm_exit_interp:
+  |.if JIT
+  |  // CRET1 = MULTRES or negated error code, BASE, PC and JGL set.
+  |  lw L, SAVE_L
+  |  addiu DISPATCH, JGL, -GG_DISP2G-32768
+  |1:
+  |  bltz CRET1, >3			// Check for error from exit.
+  |.  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+  |    lui TMP3, 0x59c0			// TOBIT = 2^52 + 2^51 (float).
+  |  sll MULTRES, CRET1, 3
+  |    li TISNIL, LJ_TNIL
+  |  sw MULTRES, SAVE_MULTRES
+  |    mtc1 TMP3, TOBIT
+  |  lw TMP1, LFUNC:TMP1->pc
+  |   sw r0, DISPATCH_GL(jit_L)(DISPATCH)
+  |  lw KBASE, PC2PROTO(k)(TMP1)
+  |    cvt.d.s TOBIT, TOBIT
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  lw INS, 0(PC)
+  |   addiu PC, PC, 4
+  |    // Assumes TISNIL == ~LJ_VMST_INTERP == -1
+  |    sw TISNIL, DISPATCH_GL(vmstate)(DISPATCH)
+  |  decode_OP4a TMP1, INS
+  |  decode_OP4b TMP1
+  |    sltiu TMP2, TMP1, BC_FUNCF*4	// Function header?
+  |  addu TMP0, DISPATCH, TMP1
+  |   decode_RD8a RD, INS
+  |  lw AT, 0(TMP0)
+  |   decode_RA8a RA, INS
+  |    beqz TMP2, >2
+  |.  decode_RA8b RA
+  |  jr AT
+  |.  decode_RD8b RD
+  |2:
+  |  addiu RC, MULTRES, -8
+  |  jr AT
+  |.  addu RA, RA, BASE
+  |
+  |3:  // Rethrow error from the right C frame.
+  |  load_got lj_err_throw
+  |  negu CARG2, CRET1
+  |  call_intern lj_err_throw		// (lua_State *L, int errcode)
+  |.  move CARG1, L
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Modifies AT, TMP0, FRET1, FRET2, f4. Keeps all others incl. FARG1.
+  |.macro vm_round, func
+  |  lui TMP0, 0x4330			// Hiword of 2^52 (double).
+  |  mtc1 r0, f4
+  |  mtc1 TMP0, f5
+  |  abs.d FRET2, FARG1			// |x|
+  |    mfc1 AT, f13
+  |  c.olt.d 0, FRET2, f4
+  |   add.d FRET1, FRET2, f4		// (|x| + 2^52) - 2^52
+  |  bc1f 0, >1				// Truncate only if |x| < 2^52.
+  |.  sub.d FRET1, FRET1, f4
+  |    slt AT, AT, r0
+  |.if "func" == "ceil"
+  |   lui TMP0, 0xbff0			// Hiword of -1 (double). Preserves -0.
+  |.else
+  |   lui TMP0, 0x3ff0			// Hiword of +1 (double).
+  |.endif
+  |.if "func" == "trunc"
+  |   mtc1 TMP0, f5
+  |  c.olt.d 0, FRET2, FRET1		// |x| < result?
+  |   sub.d FRET2, FRET1, f4
+  |  movt.d FRET1, FRET2, 0		// If yes, subtract +1.
+  |  neg.d FRET2, FRET1
+  |  jr ra
+  |.  movn.d FRET1, FRET2, AT		// Merge sign bit back in.
+  |.else
+  |  neg.d FRET2, FRET1
+  |   mtc1 TMP0, f5
+  |  movn.d FRET1, FRET2, AT		// Merge sign bit back in.
+  |.if "func" == "ceil"
+  |  c.olt.d 0, FRET1, FARG1		// x > result?
+  |.else
+  |  c.olt.d 0, FARG1, FRET1		// x < result?
+  |.endif
+  |   sub.d FRET2, FRET1, f4		// If yes, subtract +-1.
+  |  jr ra
+  |.  movt.d FRET1, FRET2, 0
+  |.endif
+  |1:
+  |  jr ra
+  |.  mov.d FRET1, FARG1
+  |.endmacro
+  |
+  |->vm_floor:
+  |  vm_round floor
+  |->vm_ceil:
+  |  vm_round ceil
+  |->vm_trunc:
+  |.if JIT
+  |  vm_round trunc
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in r1, g in r2.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs
+  |  lw CTSTATE, GL:r2->ctype_state
+  |   addiu DISPATCH, r2, GG_G2DISP
+  |  load_got lj_ccallback_enter
+  |  sw r1, CTSTATE->cb.slot
+  |  sw CARG1, CTSTATE->cb.gpr[0]
+  |  sw CARG2, CTSTATE->cb.gpr[1]
+  |   sdc1 FARG1, CTSTATE->cb.fpr[0]
+  |  sw CARG3, CTSTATE->cb.gpr[2]
+  |  sw CARG4, CTSTATE->cb.gpr[3]
+  |   sdc1 FARG2, CTSTATE->cb.fpr[1]
+  |  addiu TMP0, sp, CFRAME_SPACE+16
+  |  sw TMP0, CTSTATE->cb.stack
+  |  sw r0, SAVE_PC			// Any value outside of bytecode is ok.
+  |   move CARG2, sp
+  |  call_intern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |.  move CARG1, CTSTATE
+  |  // Returns lua_State *.
+  |  lw BASE, L:CRET1->base
+  |  lw RC, L:CRET1->top
+  |   move L, CRET1
+  |     lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |     mtc1 TMP3, TOBIT
+  |    li_vmstate INTERP
+  |     li TISNIL, LJ_TNIL
+  |  subu RC, RC, BASE
+  |    st_vmstate
+  |     cvt.d.s TOBIT, TOBIT
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  load_got lj_ccallback_leave
+  |  lw CTSTATE, DISPATCH_GL(ctype_state)(DISPATCH)
+  |   sw BASE, L->base
+  |   sw RB, L->top
+  |  sw L, CTSTATE->L
+  |  move CARG2, RA
+  |  call_intern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |.  move CARG1, CTSTATE
+  |  lw CRET1, CTSTATE->cb.gpr[0]
+  |   ldc1 FRET1, CTSTATE->cb.fpr[0]
+  |  lw CRET2, CTSTATE->cb.gpr[1]
+  |  b ->vm_leave_unw
+  |.  ldc1 FRET2, CTSTATE->cb.fpr[1]
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, CARG1
+  |  lw TMP1, CCSTATE->spadj
+  |   lbu CARG2, CCSTATE->nsp
+  |  move TMP2, sp
+  |  subu sp, sp, TMP1
+  |  sw ra, -4(TMP2)
+  |   sll CARG2, CARG2, 2
+  |  sw r16, -8(TMP2)
+  |  sw CCSTATE, -12(TMP2)
+  |  move r16, TMP2
+  |  addiu TMP1, CCSTATE, offsetof(CCallState, stack)
+  |  addiu TMP2, sp, 16
+  |  beqz CARG2, >2
+  |.  addu TMP3, TMP1, CARG2
+  |1:
+  |   lw TMP0, 0(TMP1)
+  |  addiu TMP1, TMP1, 4
+  |  sltu AT, TMP1, TMP3
+  |   sw TMP0, 0(TMP2)
+  |  bnez AT, <1
+  |.  addiu TMP2, TMP2, 4
+  |2:
+  |  lw CFUNCADDR, CCSTATE->func
+  |  lw CARG2, CCSTATE->gpr[1]
+  |  lw CARG3, CCSTATE->gpr[2]
+  |  lw CARG4, CCSTATE->gpr[3]
+  |  ldc1 FARG1, CCSTATE->fpr[0]
+  |  ldc1 FARG2, CCSTATE->fpr[1]
+  |  jalr CFUNCADDR
+  |.  lw CARG1, CCSTATE->gpr[0]		// Do this last, since CCSTATE is CARG1.
+  |  lw CCSTATE:TMP1, -12(r16)
+  |  lw TMP2, -8(r16)
+  |  lw ra, -4(r16)
+  |  sw CRET1, CCSTATE:TMP1->gpr[0]
+  |  sw CRET2, CCSTATE:TMP1->gpr[1]
+  |  sdc1 FRET1, CCSTATE:TMP1->fpr[0]
+  |  sdc1 FRET2, CCSTATE:TMP1->fpr[1]
+  |  move sp, r16
+  |  jr ra
+  |.  move r16, TMP2
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |  addu CARG2, BASE, RA
+    |   addu CARG3, BASE, RD
+    |  lw TMP0, HI(CARG2)
+    |   lw TMP1, HI(CARG3)
+    |   ldc1 f0, 0(CARG2)
+    |   ldc1 f2, 0(CARG3)
+    |  sltiu TMP0, TMP0, LJ_TISNUM
+    |   sltiu TMP1, TMP1, LJ_TISNUM
+    |    lhu TMP2, OFS_RD(PC)
+    |  and TMP0, TMP0, TMP1
+    |    addiu PC, PC, 4
+    |  beqz TMP0, ->vmeta_comp
+    |.   lui TMP1, (-(BCBIAS_J*4 >> 16) & 65535)
+    |    decode_RD4b TMP2
+    |    addu TMP2, TMP2, TMP1
+    if (op == BC_ISLT || op == BC_ISGE) {
+      |  c.olt.d f0, f2
+    } else {
+      |  c.ole.d f0, f2
+    }
+    if (op == BC_ISLT || op == BC_ISLE) {
+      |  movf TMP2, r0
+    } else {
+      |  movt TMP2, r0
+    }
+    |  addu PC, PC, TMP2
+    |1:
+    |  ins_next
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |  addu RA, BASE, RA
+    |   addiu PC, PC, 4
+    |  lw TMP0, HI(RA)
+    |   ldc1 f0, 0(RA)
+    |  addu RD, BASE, RD
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |   lw TMP1, HI(RD)
+    |   ldc1 f2, 0(RD)
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sltiu AT, TMP0, LJ_TISNUM
+    |  sltiu CARG1, TMP1, LJ_TISNUM
+    |    decode_RD4b TMP2
+    |  and AT, AT, CARG1
+    |  beqz AT, >5
+    |.   addu TMP2, TMP2, TMP3
+    |  c.eq.d f0, f2
+    if (vk) {
+      |  movf TMP2, r0
+    } else {
+      |  movt TMP2, r0
+    }
+    |1:
+    |  addu PC, PC, TMP2
+    |  ins_next
+    |5:  // Either or both types are not numbers.
+    |  lw CARG2, LO(RA)
+    |  lw CARG3, LO(RD)
+    |.if FFI
+    |  li TMP3, LJ_TCDATA
+    |  beq TMP0, TMP3, ->vmeta_equal_cd
+    |.endif
+    |.  sltiu AT, TMP0, LJ_TISPRI		// Not a primitive?
+    |.if FFI
+    |  beq TMP1, TMP3, ->vmeta_equal_cd
+    |.endif
+    |.  xor TMP3, CARG2, CARG3			// Same tv?
+    |  xor TMP1, TMP1, TMP0			// Same type?
+    |  sltiu CARG1, TMP0, LJ_TISTABUD+1		// Table or userdata?
+    |  movz TMP3, r0, AT			// Ignore tv if primitive.
+    |  movn CARG1, r0, TMP1			// Tab/ud and same type?
+    |  or AT, TMP1, TMP3			// Same type && (pri||same tv).
+    |  movz CARG1, r0, AT
+    |  beqz CARG1, <1	// Done if not tab/ud or not same type or same tv.
+    if (vk) {
+      |.  movn TMP2, r0, AT
+    } else {
+      |.  movz TMP2, r0, AT
+    }
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  lw TAB:TMP1, TAB:CARG2->metatable
+    |  beqz TAB:TMP1, <1		// No metatable?
+    |.  nop
+    |  lbu TMP1, TAB:TMP1->nomm
+    |  andi TMP1, TMP1, 1<<MM_eq
+    |  bnez TMP1, <1			// Or 'no __eq' flag set?
+    |.  nop
+    |  b ->vmeta_equal			// Handle __eq metamethod.
+    |.  li CARG4, 1-vk			// ne = 0 or 1.
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
+    |  addu RA, BASE, RA
+    |   addiu PC, PC, 4
+    |  lw TMP0, HI(RA)
+    |   srl RD, RD, 1
+    |  lw STR:TMP3, LO(RA)
+    |   subu RD, KBASE, RD
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |.if FFI
+    |  li AT, LJ_TCDATA
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.endif
+    |.  lw STR:TMP1, -4(RD)		// KBASE-4-str_const*4
+    |  addiu TMP0, TMP0, -LJ_TSTR
+    |   decode_RD4b TMP2
+    |  xor TMP1, STR:TMP1, STR:TMP3
+    |  or TMP0, TMP0, TMP1
+    |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |   addu TMP2, TMP2, TMP3
+    if (vk) {
+      |  movn TMP2, r0, TMP0
+    } else {
+      |  movz TMP2, r0, TMP0
+    }
+    |  addu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RD = num_const*8, JMP with RD = target
+    |  addu RA, BASE, RA
+    |   addiu PC, PC, 4
+    |  lw TMP0, HI(RA)
+    |   ldc1 f0, 0(RA)
+    |  addu RD, KBASE, RD
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |   ldc1 f2, 0(RD)
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sltiu AT, TMP0, LJ_TISNUM
+    |    decode_RD4b TMP2
+    |.if FFI
+    |  beqz AT, >5
+    |.else
+    |  beqz AT, >1
+    |.endif
+    |.   addu TMP2, TMP2, TMP3
+    |   c.eq.d f0, f2
+    if (vk) {
+      |  movf TMP2, r0
+      |  addu PC, PC, TMP2
+      |1:
+    } else {
+      |  movt TMP2, r0
+      |1:
+      |  addu PC, PC, TMP2
+    }
+    |  ins_next
+    |.if FFI
+    |5:
+    |  li AT, LJ_TCDATA
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.  nop
+    |  b <1
+    |.  nop
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
+    |  addu RA, BASE, RA
+    |   srl TMP1, RD, 3
+    |  lw TMP0, HI(RA)
+    |    lhu TMP2, OFS_RD(PC)
+    |   not TMP1, TMP1
+    |    addiu PC, PC, 4
+    |.if FFI
+    |  li AT, LJ_TCDATA
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.endif
+    |.  xor TMP0, TMP0, TMP1
+    |  decode_RD4b TMP2
+    |  lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  addu TMP2, TMP2, TMP3
+    if (vk) {
+      |  movn TMP2, r0, TMP0
+    } else {
+      |  movz TMP2, r0, TMP0
+    }
+    |  addu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
+    |  addu RD, BASE, RD
+    |   lhu TMP2, OFS_RD(PC)
+    |  lw TMP0, HI(RD)
+    |   addiu PC, PC, 4
+    if (op == BC_IST || op == BC_ISF) {
+      |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+      |   decode_RD4b TMP2
+      |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+      |   addu TMP2, TMP2, TMP3
+      if (op == BC_IST) {
+	|  movz TMP2, r0, TMP0
+      } else {
+	|  movn TMP2, r0, TMP0
+      }
+      |  addu PC, PC, TMP2
+    } else {
+      |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+      |  ldc1 f0, 0(RD)
+      if (op == BC_ISTC) {
+	|  beqz TMP0, >1
+      } else {
+	|  bnez TMP0, >1
+      }
+      |.  addu RA, BASE, RA
+      |   decode_RD4b TMP2
+      |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+      |   addu TMP2, TMP2, TMP3
+      |  sdc1 f0, 0(RA)
+      |   addu PC, PC, TMP2
+      |1:
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RD = src*8
+    |  addu RD, BASE, RD
+    |  addu RA, BASE, RA
+    |  ldc1 f0, 0(RD)
+    |  ins_next1
+    |  sdc1 f0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RD = src*8
+    |  addu RD, BASE, RD
+    |   addu RA, BASE, RA
+    |  lw TMP0, HI(RD)
+    |   li TMP1, LJ_TFALSE
+    |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+    |  addiu TMP1, TMP0, LJ_TTRUE
+    |  ins_next1
+    |  sw TMP1, HI(RA)
+    |  ins_next2
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RD = src*8
+    |  addu CARG3, BASE, RD
+    |   addu RA, BASE, RA
+    |  lw TMP0, HI(CARG3)
+    |   ldc1 f0, 0(CARG3)
+    |  sltiu AT, TMP0, LJ_TISNUM
+    |  beqz AT, ->vmeta_unm
+    |.  neg.d f0, f0
+    |  ins_next1
+    |   sdc1 f0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RD = src*8
+    |  addu CARG2, BASE, RD
+    |   addu RA, BASE, RA
+    |  lw TMP0, HI(CARG2)
+    |   lw CARG1, LO(CARG2)
+    |  li AT, LJ_TSTR
+    |  bne TMP0, AT, >2
+    |.  li AT, LJ_TTAB
+    |  lw CRET1, STR:CARG1->len
+    |1:
+    |  mtc1 CRET1, f0
+    |  cvt.d.w f0, f0
+    |  ins_next1
+    |  sdc1 f0, 0(RA)
+    |  ins_next2
+    |2:
+    |  bne TMP0, AT, ->vmeta_len
+    |.  nop
+#if LJ_52
+    |  lw TAB:TMP2, TAB:CARG1->metatable
+    |  bnez TAB:TMP2, >9
+    |.  nop
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  load_got lj_tab_len
+    |  call_intern lj_tab_len		// (GCtab *t)
+    |.  nop
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+    |.  nop
+#if LJ_52
+    |9:
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_len
+    |  bnez TMP0, <3			// 'no __len' flag set: done.
+    |.  nop
+    |  b ->vmeta_len
+    |.  nop
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||switch (vk) {
+    ||case 0:
+    |   addu CARG3, BASE, RB
+    |    addu CARG4, KBASE, RC
+    |   lw TMP1, HI(CARG3)
+    |   ldc1 f20, 0(CARG3)
+    |    ldc1 f22, 0(CARG4)
+    |   sltiu AT, TMP1, LJ_TISNUM
+    ||  break;
+    ||case 1:
+    |   addu CARG4, BASE, RB
+    |    addu CARG3, KBASE, RC
+    |   lw TMP1, HI(CARG4)
+    |   ldc1 f22, 0(CARG4)
+    |    ldc1 f20, 0(CARG3)
+    |   sltiu AT, TMP1, LJ_TISNUM
+    ||  break;
+    ||default:
+    |   addu CARG3, BASE, RB
+    |    addu CARG4, BASE, RC
+    |   lw TMP1, HI(CARG3)
+    |    lw TMP2, HI(CARG4)
+    |   ldc1 f20, 0(CARG3)
+    |    ldc1 f22, 0(CARG4)
+    |   sltiu AT, TMP1, LJ_TISNUM
+    |   sltiu TMP0, TMP2, LJ_TISNUM
+    |   and AT, AT, TMP0
+    ||  break;
+    ||}
+    |  beqz AT, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |.endmacro
+    |
+    |.macro fpmod, a, b, c
+    |->BC_MODVN_Z:
+    |  bal ->vm_floor			// floor(b/c)
+    |.  div.d FARG1, b, c
+    |  mul.d a, FRET1, c
+    |  sub.d a, b, a			// b - floor(b/c)*c
+    |.endmacro
+    |
+    |.macro ins_arith, ins
+    |  ins_arithpre
+    |.if "ins" == "fpmod_"
+    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    |.  nop
+    |.else
+    |  ins f0, f20, f22
+    |  ins_next1
+    |  sdc1 f0, 0(RA)
+    |  ins_next2
+    |.endif
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith add.d
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith sub.d
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith mul.d
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arith div.d
+    break;
+  case BC_MODVN:
+    |  ins_arith fpmod
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arith fpmod_
+    break;
+  case BC_POW:
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu CARG3, BASE, RB
+    |   addu CARG4, BASE, RC
+    |  lw TMP1, HI(CARG3)
+    |   lw TMP2, HI(CARG4)
+    |  ldc1 FARG1, 0(CARG3)
+    |   ldc1 FARG2, 0(CARG4)
+    |  sltiu AT, TMP1, LJ_TISNUM
+    |  sltiu TMP0, TMP2, LJ_TISNUM
+    |  and AT, AT, TMP0
+    |  load_got pow
+    |  beqz AT, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |  call_extern
+    |.  nop
+    |  ins_next1
+    |  sdc1 FRET1, 0(RA)
+    |  ins_next2
+    break;
+
+  case BC_CAT:
+    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  subu CARG3, RC, RB
+    |   sw BASE, L->base
+    |  addu CARG2, BASE, RC
+    |  move MULTRES, RB
+    |->BC_CAT_Z:
+    |  load_got lj_meta_cat
+    |  srl CARG3, CARG3, 3
+    |   sw PC, SAVE_PC
+    |  call_intern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |.  move CARG1, L
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  bnez CRET1, ->vmeta_binop
+    |.  lw BASE, L->base
+    |  addu RB, BASE, MULTRES
+    |  ldc1 f0, 0(RB)
+    |   addu RA, BASE, RA
+    |  ins_next1
+    |   sdc1 f0, 0(RA)			// Copy result from RB to RA.
+    |  ins_next2
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RD = str_const*8 (~)
+    |  srl TMP1, RD, 1
+    |  subu TMP1, KBASE, TMP1
+    |  ins_next1
+    |  lw TMP0, -4(TMP1)		// KBASE-4-str_const*4
+    |  addu RA, BASE, RA
+    |   li TMP2, LJ_TSTR
+    |  sw TMP0, LO(RA)
+    |   sw TMP2, HI(RA)
+    |  ins_next2
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RD = cdata_const*8 (~)
+    |  srl TMP1, RD, 1
+    |  subu TMP1, KBASE, TMP1
+    |  ins_next1
+    |  lw TMP0, -4(TMP1)		// KBASE-4-cdata_const*4
+    |  addu RA, BASE, RA
+    |   li TMP2, LJ_TCDATA
+    |  sw TMP0, LO(RA)
+    |   sw TMP2, HI(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, RD = int16_literal*8
+    |  sra RD, INS, 16
+    |  mtc1 RD, f0
+    |  addu RA, BASE, RA
+    |  cvt.d.w f0, f0
+    |  ins_next1
+    |  sdc1 f0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RD = num_const*8
+    |  addu RD, KBASE, RD
+    |   addu RA, BASE, RA
+    |  ldc1 f0, 0(RD)
+    |  ins_next1
+    |   sdc1 f0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RD = primitive_type*8 (~)
+    |  srl TMP1, RD, 3
+    |   addu RA, BASE, RA
+    |  not TMP0, TMP1
+    |  ins_next1
+    |   sw TMP0, HI(RA)
+    |  ins_next2
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RD = end*8
+    |  addu RA, BASE, RA
+    |  sw TISNIL, HI(RA)
+    |   addiu RA, RA, 8
+    |  addu RD, BASE, RD
+    |1:
+    |  sw TISNIL, HI(RA)
+    |  slt AT, RA, RD
+    |  bnez AT, <1
+    |.  addiu RA, RA, 8
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RD = uvnum*8
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |   srl RD, RD, 1
+    |   addu RD, RD, LFUNC:RB
+    |  lw UPVAL:RB, LFUNC:RD->uvptr
+    |  ins_next1
+    |  lw TMP1, UPVAL:RB->v
+    |  ldc1 f0, 0(TMP1)
+    |  addu RA, BASE, RA
+    |  sdc1 f0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RD = src*8
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |    srl RA, RA, 1
+    |   addu RD, BASE, RD
+    |    addu RA, RA, LFUNC:RB
+    |   ldc1 f0, 0(RD)
+    |  lw UPVAL:RB, LFUNC:RA->uvptr
+    |  lbu TMP3, UPVAL:RB->marked
+    |   lw CARG2, UPVAL:RB->v
+    |  andi TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |  lbu TMP0, UPVAL:RB->closed
+    |   lw TMP2, HI(RD)
+    |   sdc1 f0, 0(CARG2)
+    |  li AT, LJ_GC_BLACK|1
+    |  or TMP3, TMP3, TMP0
+    |  beq TMP3, AT, >2			// Upvalue is closed and black?
+    |.  addiu TMP2, TMP2, -(LJ_TNUMX+1)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  sltiu AT, TMP2, LJ_TISGCV - (LJ_TNUMX+1)
+    |  beqz AT, <1			// tvisgcv(v)
+    |.  lw TMP1, LO(RD)
+    |  lbu TMP3, GCOBJ:TMP1->gch.marked
+    |  andi TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
+    |  beqz TMP3, <1
+    |.  load_got lj_gc_barrieruv
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  call_intern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.  addiu CARG1, DISPATCH, GG_DISP2G
+    |  b <1
+    |.  nop
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RD = str_const*8 (~)
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |    srl RA, RA, 1
+    |   srl TMP1, RD, 1
+    |    addu RA, RA, LFUNC:RB
+    |   subu TMP1, KBASE, TMP1
+    |  lw UPVAL:RB, LFUNC:RA->uvptr
+    |   lw STR:TMP1, -4(TMP1)		// KBASE-4-str_const*4
+    |  lbu TMP2, UPVAL:RB->marked
+    |   lw CARG2, UPVAL:RB->v
+    |   lbu TMP3, STR:TMP1->marked
+    |  andi AT, TMP2, LJ_GC_BLACK	// isblack(uv)
+    |   lbu TMP2, UPVAL:RB->closed
+    |   li TMP0, LJ_TSTR
+    |   sw STR:TMP1, LO(CARG2)
+    |  bnez AT, >2
+    |.  sw TMP0, HI(CARG2)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  beqz TMP2, <1
+    |.  andi AT, TMP3, LJ_GC_WHITES	// iswhite(str)
+    |  beqz AT, <1
+    |.  load_got lj_gc_barrieruv
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  call_intern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.  addiu CARG1, DISPATCH, GG_DISP2G
+    |  b <1
+    |.  nop
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RD = num_const*8
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |   srl RA, RA, 1
+    |    addu RD, KBASE, RD
+    |   addu RA, RA, LFUNC:RB
+    |    ldc1 f0, 0(RD)
+    |  lw UPVAL:RB, LFUNC:RA->uvptr
+    |  ins_next1
+    |  lw TMP1, UPVAL:RB->v
+    |  sdc1 f0, 0(TMP1)
+    |  ins_next2
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RD = primitive_type*8 (~)
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |   srl RA, RA, 1
+    |    srl TMP0, RD, 3
+    |   addu RA, RA, LFUNC:RB
+    |    not TMP0, TMP0
+    |  lw UPVAL:RB, LFUNC:RA->uvptr
+    |  ins_next1
+    |  lw TMP1, UPVAL:RB->v
+    |  sw TMP0, HI(TMP1)
+    |  ins_next2
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RD = target
+    |  lw TMP2, L->openupval
+    |  branch_RD			// Do this first since RD is not saved.
+    |  load_got lj_func_closeuv
+    |   sw BASE, L->base
+    |  beqz TMP2, >1
+    |.  move CARG1, L
+    |  call_intern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |.  addu CARG2, BASE, RA
+    |  lw BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
+    |  srl TMP1, RD, 1
+    |  load_got lj_func_newL_gc
+    |  subu TMP1, KBASE, TMP1
+    |  lw CARG3, FRAME_FUNC(BASE)
+    |  lw CARG2, -4(TMP1)		// KBASE-4-tab_const*4
+    |   sw BASE, L->base
+    |   sw PC, SAVE_PC
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  call_intern lj_func_newL_gc
+    |.  move CARG1, L
+    |  // Returns GCfuncL *.
+    |  lw BASE, L->base
+    |   li TMP0, LJ_TFUNC
+    |  ins_next1
+    |  addu RA, BASE, RA
+    |  sw TMP0, HI(RA)
+    |  sw LFUNC:CRET1, LO(RA)
+    |  ins_next2
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
+    |  lw TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+    |  lw TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+    |   sw BASE, L->base
+    |   sw PC, SAVE_PC
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, >5
+    |1:
+    if (op == BC_TNEW) {
+      |  load_got lj_tab_new
+      |  srl CARG2, RD, 3
+      |  andi CARG2, CARG2, 0x7ff
+      |  li TMP0, 0x801
+      |  addiu AT, CARG2, -0x7ff
+      |   srl CARG3, RD, 14
+      |  movz CARG2, TMP0, AT
+      |  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  call_intern lj_tab_new
+      |.  move CARG1, L
+      |  // Returns Table *.
+    } else {
+      |  load_got lj_tab_dup
+      |  srl TMP1, RD, 1
+      |  subu TMP1, KBASE, TMP1
+      |  move CARG1, L
+      |  call_intern lj_tab_dup		// (lua_State *L, Table *kt)
+      |.  lw CARG2, -4(TMP1)		// KBASE-4-str_const*4
+      |  // Returns Table *.
+    }
+    |  lw BASE, L->base
+    |  ins_next1
+    |  addu RA, BASE, RA
+    |   li TMP0, LJ_TTAB
+    |  sw TAB:CRET1, LO(RA)
+    |   sw TMP0, HI(RA)
+    |  ins_next2
+    |5:
+    |  load_got lj_gc_step_fixtop
+    |  move MULTRES, RD
+    |  call_intern lj_gc_step_fixtop	// (lua_State *L)
+    |.  move CARG1, L
+    |  b <1
+    |.  move RD, MULTRES
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RD = str_const*8 (~)
+  case BC_GSET:
+    |  // RA = src*8, RD = str_const*8 (~)
+    |  lw LFUNC:TMP2, FRAME_FUNC(BASE)
+    |   srl TMP1, RD, 1
+    |   subu TMP1, KBASE, TMP1
+    |  lw TAB:RB, LFUNC:TMP2->env
+    |  lw STR:RC, -4(TMP1)		// KBASE-4-str_const*4
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    |.  addu RA, BASE, RA
+    break;
+
+  case BC_TGETV:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu CARG2, BASE, RB
+    |   addu CARG3, BASE, RC
+    |  lw TMP1, HI(CARG2)
+    |   lw TMP2, HI(CARG3)
+    |    lw TAB:RB, LO(CARG2)
+    |  li AT, LJ_TTAB
+    |   ldc1 f0, 0(CARG3)
+    |  bne TMP1, AT, ->vmeta_tgetv
+    |.  addu RA, BASE, RA
+    |  sltiu AT, TMP2, LJ_TISNUM
+    |  beqz AT, >5
+    |.  li AT, LJ_TSTR
+    |
+    |  // Convert number key to integer, check for integerness and range.
+    |  cvt.w.d f2, f0
+    |   lw TMP0, TAB:RB->asize
+    |  mfc1 TMP2, f2
+    |  cvt.d.w f4, f2
+    |   lw TMP1, TAB:RB->array
+    |  c.eq.d f0, f4
+    |  sltu AT, TMP2, TMP0
+    |  movf AT, r0
+    |   sll TMP2, TMP2, 3
+    |  beqz AT, ->vmeta_tgetv		// Integer key and in array part?
+    |.  addu TMP2, TMP1, TMP2
+    |  lw TMP0, HI(TMP2)
+    |  beq TMP0, TISNIL, >2
+    |.  ldc1 f0, 0(TMP2)
+    |1:
+    |  ins_next1
+    |   sdc1 f0, 0(RA)
+    |  ins_next2
+    |
+    |2:  // Check for __index if table value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_index
+    |  bnez TMP0, <1			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgetv
+    |.  nop
+    |
+    |5:
+    |  bne TMP2, AT, ->vmeta_tgetv
+    |.  lw STR:RC, LO(CARG3)
+    |  b ->BC_TGETS_Z			// String key?
+    |.  nop
+    break;
+  case BC_TGETS:
+    |  // RA = dst*8, RB = table*8, RC = str_const*4 (~)
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RC4a RC, INS
+    |  lw TMP0, HI(CARG2)
+    |   decode_RC4b RC
+    |  li AT, LJ_TTAB
+    |   lw TAB:RB, LO(CARG2)
+    |   subu CARG3, KBASE, RC
+    |   lw STR:RC, -4(CARG3)		// KBASE-4-str_const*4
+    |  bne TMP0, AT, ->vmeta_tgets1
+    |.  addu RA, BASE, RA
+    |->BC_TGETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  lw TMP0, TAB:RB->hmask
+    |  lw TMP1, STR:RC->hash
+    |  lw NODE:TMP2, TAB:RB->node
+    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+    |  sll TMP0, TMP1, 5
+    |  sll TMP1, TMP1, 3
+    |  subu TMP1, TMP0, TMP1
+    |  addu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  lw CARG1, offsetof(Node, key)+HI(NODE:TMP2)
+    |   lw TMP0, offsetof(Node, key)+LO(NODE:TMP2)
+    |    lw NODE:TMP1, NODE:TMP2->next
+    |    lw CARG2, offsetof(Node, val)+HI(NODE:TMP2)
+    |  addiu CARG1, CARG1, -LJ_TSTR
+    |   xor TMP0, TMP0, STR:RC
+    |  or AT, CARG1, TMP0
+    |  bnez AT, >4
+    |.  lw TAB:TMP3, TAB:RB->metatable
+    |    beq CARG2, TISNIL, >5		// Key found, but nil value?
+    |.    lw CARG1, offsetof(Node, val)+LO(NODE:TMP2)
+    |3:
+    |  ins_next1
+    |    sw CARG2, HI(RA)
+    |     sw CARG1, LO(RA)
+    |  ins_next2
+    |
+    |4:  // Follow hash chain.
+    |  bnez NODE:TMP1, <1
+    |.  move NODE:TMP2, NODE:TMP1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  beqz TAB:TMP3, <3		// No metatable: done.
+    |.  li CARG2, LJ_TNIL
+    |  lbu TMP0, TAB:TMP3->nomm
+    |  andi TMP0, TMP0, 1<<MM_index
+    |  bnez TMP0, <3			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgets
+    |.  nop
+    break;
+  case BC_TGETB:
+    |  // RA = dst*8, RB = table*8, RC = index*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RDtoRC8 RC, RD
+    |  lw CARG1, HI(CARG2)
+    |  li AT, LJ_TTAB
+    |   lw TAB:RB, LO(CARG2)
+    |   addu RA, BASE, RA
+    |  bne CARG1, AT, ->vmeta_tgetb
+    |.  srl TMP0, RC, 3
+    |  lw TMP1, TAB:RB->asize
+    |   lw TMP2, TAB:RB->array
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, ->vmeta_tgetb
+    |.  addu RC, TMP2, RC
+    |  lw TMP1, HI(RC)
+    |  beq TMP1, TISNIL, >5
+    |.  ldc1 f0, 0(RC)
+    |1:
+    |  ins_next1
+    |   sdc1 f0, 0(RA)
+    |  ins_next2
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP1, TAB:TMP2->nomm
+    |  andi TMP1, TMP1, 1<<MM_index
+    |  bnez TMP1, <1			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgetb			// Caveat: preserve TMP0!
+    |.  nop
+    break;
+
+  case BC_TSETV:
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu CARG2, BASE, RB
+    |   addu CARG3, BASE, RC
+    |  lw TMP1, HI(CARG2)
+    |   lw TMP2, HI(CARG3)
+    |    lw TAB:RB, LO(CARG2)
+    |  li AT, LJ_TTAB
+    |   ldc1 f0, 0(CARG3)
+    |  bne TMP1, AT, ->vmeta_tsetv
+    |.  addu RA, BASE, RA
+    |  sltiu AT, TMP2, LJ_TISNUM
+    |  beqz AT, >5
+    |.  li AT, LJ_TSTR
+    |
+    |  // Convert number key to integer, check for integerness and range.
+    |  cvt.w.d f2, f0
+    |   lw TMP0, TAB:RB->asize
+    |  mfc1 TMP2, f2
+    |  cvt.d.w f4, f2
+    |   lw TMP1, TAB:RB->array
+    |  c.eq.d f0, f4
+    |  sltu AT, TMP2, TMP0
+    |  movf AT, r0
+    |   sll TMP2, TMP2, 3
+    |  beqz AT, ->vmeta_tsetv		// Integer key and in array part?
+    |.  addu TMP1, TMP1, TMP2
+    |   lbu TMP3, TAB:RB->marked
+    |  lw TMP0, HI(TMP1)
+    |  beq TMP0, TISNIL, >3
+    |.  ldc1 f0, 0(RA)
+    |1:
+    |   andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |   bnez AT, >7
+    |.  sdc1 f0, 0(TMP1)
+    |2:
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP2, TAB:TMP2->nomm
+    |  andi TMP2, TMP2, 1<<MM_newindex
+    |  bnez TMP2, <1			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsetv
+    |.  nop
+    |
+    |5:
+    |  bne TMP2, AT, ->vmeta_tsetv
+    |.  lw STR:RC, LO(CARG3)
+    |  b ->BC_TSETS_Z			// String key?
+    |.  nop
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <2
+    break;
+  case BC_TSETS:
+    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RC4a RC, INS
+    |  lw TMP0, HI(CARG2)
+    |   decode_RC4b RC
+    |  li AT, LJ_TTAB
+    |   subu CARG3, KBASE, RC
+    |    lw TAB:RB, LO(CARG2)
+    |   lw STR:RC, -4(CARG3)		// KBASE-4-str_const*4
+    |  bne TMP0, AT, ->vmeta_tsets1
+    |.  addu RA, BASE, RA
+    |->BC_TSETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = BASE+src*8
+    |  lw TMP0, TAB:RB->hmask
+    |  lw TMP1, STR:RC->hash
+    |  lw NODE:TMP2, TAB:RB->node
+    |   sb r0, TAB:RB->nomm		// Clear metamethod cache.
+    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+    |  sll TMP0, TMP1, 5
+    |  sll TMP1, TMP1, 3
+    |  subu TMP1, TMP0, TMP1
+    |  addu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |   ldc1 f20, 0(RA)
+    |1:
+    |  lw CARG1, offsetof(Node, key)+HI(NODE:TMP2)
+    |   lw TMP0, offsetof(Node, key)+LO(NODE:TMP2)
+    |  li AT, LJ_TSTR
+    |    lw NODE:TMP1, NODE:TMP2->next
+    |  bne CARG1, AT, >5
+    |.   lw CARG2, offsetof(Node, val)+HI(NODE:TMP2)
+    |   bne TMP0, STR:RC, >5
+    |.    lbu TMP3, TAB:RB->marked
+    |    beq CARG2, TISNIL, >4		// Key found, but nil value?
+    |.    lw TAB:TMP0, TAB:RB->metatable
+    |2:
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.  sdc1 f20, NODE:TMP2->val
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  beqz TAB:TMP0, <2		// No metatable: done.
+    |.  nop
+    |  lbu TMP0, TAB:TMP0->nomm
+    |  andi TMP0, TMP0, 1<<MM_newindex
+    |  bnez TMP0, <2			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsets
+    |.  nop
+    |
+    |5:  // Follow hash chain.
+    |  bnez NODE:TMP1, <1
+    |.  move NODE:TMP2, NODE:TMP1
+    |  // End of hash chain: key not found, add a new one
+    |
+    |  // But check for __newindex first.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, >6		// No metatable: continue.
+    |.  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_newindex
+    |  beqz TMP0, ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |.  li AT, LJ_TSTR
+    |6:
+    |  load_got lj_tab_newkey
+    |  sw STR:RC, LO(CARG3)
+    |  sw AT, HI(CARG3)
+    |   sw BASE, L->base
+    |  move CARG2, TAB:RB
+    |   sw PC, SAVE_PC
+    |  call_intern lj_tab_newkey	// (lua_State *L, GCtab *t, TValue *k
+    |.  move CARG1, L
+    |  // Returns TValue *.
+    |  lw BASE, L->base
+    |  b <3				// No 2nd write barrier needed.
+    |.  sdc1 f20, 0(CRET1)
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <3
+    break;
+  case BC_TSETB:
+    |  // RA = src*8, RB = table*8, RC = index*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RDtoRC8 RC, RD
+    |  lw CARG1, HI(CARG2)
+    |  li AT, LJ_TTAB
+    |   lw TAB:RB, LO(CARG2)
+    |   addu RA, BASE, RA
+    |  bne CARG1, AT, ->vmeta_tsetb
+    |.  srl TMP0, RC, 3
+    |  lw TMP1, TAB:RB->asize
+    |   lw TMP2, TAB:RB->array
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, ->vmeta_tsetb
+    |.  addu RC, TMP2, RC
+    |  lw TMP1, HI(RC)
+    |   lbu TMP3, TAB:RB->marked
+    |  beq TMP1, TISNIL, >5
+    |.  ldc1 f0, 0(RA)
+    |1:
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.  sdc1 f0, 0(RC)
+    |2:
+    |  ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP1, TAB:TMP2->nomm
+    |  andi TMP1, TMP1, 1<<MM_newindex
+    |  bnez TMP1, <1			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsetb			// Caveat: preserve TMP0!
+    |.  nop
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
+    |  addu RA, BASE, RA
+    |1:
+    |   addu TMP3, KBASE, RD
+    |  lw TAB:CARG2, -8+LO(RA)		// Guaranteed to be a table.
+    |    addiu TMP0, MULTRES, -8
+    |   lw TMP3, LO(TMP3)		// Integer constant is in lo-word.
+    |    beqz TMP0, >4			// Nothing to copy?
+    |.    srl CARG3, TMP0, 3
+    |  addu CARG3, CARG3, TMP3
+    |  lw TMP2, TAB:CARG2->asize
+    |   sll TMP1, TMP3, 3
+    |    lbu TMP3, TAB:CARG2->marked
+    |   lw CARG1, TAB:CARG2->array
+    |  sltu AT, TMP2, CARG3
+    |  bnez AT, >5
+    |.  addu TMP2, RA, TMP0
+    |   addu TMP1, TMP1, CARG1
+    |  andi TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |3:  // Copy result slots to table.
+    |   ldc1 f0, 0(RA)
+    |    addiu RA, RA, 8
+    |  sltu AT, RA, TMP2
+    |   sdc1 f0, 0(TMP1)
+    |  bnez AT, <3
+    |.   addiu TMP1, TMP1, 8
+    |  bnez TMP0, >7
+    |. nop
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |  load_got lj_tab_reasize
+    |   sw BASE, L->base
+    |   sw PC, SAVE_PC
+    |  move BASE, RD
+    |  call_intern lj_tab_reasize	// (lua_State *L, GCtab *t, int nasize)
+    |.  move CARG1, L
+    |  // Must not reallocate the stack.
+    |  move RD, BASE
+    |  b <1
+    |.  lw BASE, L->base	// Reload BASE for lack of a saved register.
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP0, <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
+    |  decode_RDtoRC8 NARGS8:RC, RD
+    |  b ->BC_CALL_Z
+    |.  addu NARGS8:RC, NARGS8:RC, MULTRES
+    break;
+  case BC_CALL:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
+    |  decode_RDtoRC8 NARGS8:RC, RD
+    |->BC_CALL_Z:
+    |  move TMP2, BASE
+    |  addu BASE, BASE, RA
+    |   li AT, LJ_TFUNC
+    |  lw TMP0, HI(BASE)
+    |   lw LFUNC:RB, LO(BASE)
+    |   addiu BASE, BASE, 8
+    |  bne TMP0, AT, ->vmeta_call
+    |.  addiu NARGS8:RC, NARGS8:RC, -8
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
+    |  addu NARGS8:RD, NARGS8:RD, MULTRES	// BC_CALLT gets RC from RD.
+    |  // Fall through. Assumes BC_CALLT follows.
+    break;
+  case BC_CALLT:
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |  addu RA, BASE, RA
+    |   li AT, LJ_TFUNC
+    |  lw TMP0, HI(RA)
+    |   lw LFUNC:RB, LO(RA)
+    |   move NARGS8:RC, RD
+    |    lw TMP1, FRAME_PC(BASE)
+    |   addiu RA, RA, 8
+    |  bne TMP0, AT, ->vmeta_callt
+    |.  addiu NARGS8:RC, NARGS8:RC, -8
+    |->BC_CALLT_Z:
+    |  andi TMP0, TMP1, FRAME_TYPE	// Caveat: preserve TMP0 until the 'or'.
+    |   lbu TMP3, LFUNC:RB->ffid
+    |  bnez TMP0, >7
+    |.  xori TMP2, TMP1, FRAME_VARG
+    |1:
+    |  sw LFUNC:RB, FRAME_FUNC(BASE)	// Copy function down, but keep PC.
+    |  sltiu AT, TMP3, 2		// (> FF_C) Calling a fast function?
+    |  move TMP2, BASE
+    |  beqz NARGS8:RC, >3
+    |.  move TMP3, NARGS8:RC
+    |2:
+    |   ldc1 f0, 0(RA)
+    |    addiu RA, RA, 8
+    |  addiu TMP3, TMP3, -8
+    |   sdc1 f0, 0(TMP2)
+    |  bnez TMP3, <2
+    |.   addiu TMP2, TMP2, 8
+    |3:
+    |  or TMP0, TMP0, AT
+    |  beqz TMP0, >5
+    |.  nop
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  lw INS, -4(TMP1)
+    |  decode_RA8a RA, INS
+    |  decode_RA8b RA
+    |  subu TMP1, BASE, RA
+    |  lw LFUNC:TMP1, -8+FRAME_FUNC(TMP1)
+    |  lw TMP1, LFUNC:TMP1->pc
+    |  b <4
+    |.  lw KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
+    |
+    |7:  // Tailcall from a vararg function.
+    |  andi AT, TMP2, FRAME_TYPEP
+    |  bnez AT, <1			// Vararg frame below?
+    |.  subu TMP2, BASE, TMP2		// Relocate BASE down.
+    |  move BASE, TMP2
+    |  lw TMP1, FRAME_PC(TMP2)
+    |  b <1
+    |.  andi TMP0, TMP1, FRAME_TYPE
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
+    |  move TMP2, BASE
+    |  addu BASE, BASE, RA
+    |   li AT, LJ_TFUNC
+    |  lw TMP1, -24+HI(BASE)
+    |   lw LFUNC:RB, -24+LO(BASE)
+    |    ldc1 f2, -8(BASE)
+    |    ldc1 f0, -16(BASE)
+    |  sw TMP1, HI(BASE)		// Copy callable.
+    |   sw LFUNC:RB, LO(BASE)
+    |    sdc1 f2, 16(BASE)		// Copy control var.
+    |    sdc1 f0, 8(BASE)		// Copy state.
+    |   addiu BASE, BASE, 8
+    |  bne TMP1, AT, ->vmeta_call
+    |.  li NARGS8:RC, 16		// Iterators get 2 arguments.
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |.if JIT
+    |  // NYI: add hotloop, record BC_ITERN.
+    |.endif
+    |  addu RA, BASE, RA
+    |  lw TAB:RB, -16+LO(RA)
+    |  lw RC, -8+LO(RA)			// Get index from control var.
+    |  lw TMP0, TAB:RB->asize
+    |  lw TMP1, TAB:RB->array
+    |   addiu PC, PC, 4
+    |1:  // Traverse array part.
+    |  sltu AT, RC, TMP0
+    |  beqz AT, >5			// Index points after array part?
+    |.  sll TMP3, RC, 3
+    |  addu TMP3, TMP1, TMP3
+    |  lw TMP2, HI(TMP3)
+    |   ldc1 f0, 0(TMP3)
+    |    mtc1 RC, f2
+    |     lhu RD, -4+OFS_RD(PC)
+    |  beq TMP2, TISNIL, <1		// Skip holes in array part.
+    |.  addiu RC, RC, 1
+    |    cvt.d.w f2, f2
+    |     lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |   sdc1 f0, 8(RA)
+    |     decode_RD4b RD
+    |     addu RD, RD, TMP3
+    |   sw RC, -8+LO(RA)		// Update control var.
+    |     addu PC, PC, RD
+    |    sdc1 f2, 0(RA)
+    |3:
+    |  ins_next
+    |
+    |5:  // Traverse hash part.
+    |  lw TMP1, TAB:RB->hmask
+    |  subu RC, RC, TMP0
+    |   lw TMP2, TAB:RB->node
+    |6:
+    |  sltu AT, TMP1, RC		// End of iteration? Branch to ITERL+1.
+    |  bnez AT, <3
+    |.  sll TMP3, RC, 5
+    |   sll RB, RC, 3
+    |   subu TMP3, TMP3, RB
+    |  addu NODE:TMP3, TMP3, TMP2
+    |  lw RB, HI(NODE:TMP3)
+    |  ldc1 f0, 0(NODE:TMP3)
+    |     lhu RD, -4+OFS_RD(PC)
+    |  beq RB, TISNIL, <6		// Skip holes in hash part.
+    |.  addiu RC, RC, 1
+    |   ldc1 f2, NODE:TMP3->key
+    |     lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sdc1 f0, 8(RA)
+    |    addu RC, RC, TMP0
+    |     decode_RD4b RD
+    |     addu RD, RD, TMP3
+    |   sdc1 f2, 0(RA)
+    |     addu PC, PC, RD
+    |  b <3
+    |.  sw RC, -8+LO(RA)		// Update control var.
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RD = target (points to ITERN)
+    |  addu RA, BASE, RA
+    |  lw TMP0, -24+HI(RA)
+    |  lw CFUNC:TMP1, -24+LO(RA)
+    |   lw TMP2, -16+HI(RA)
+    |    lw TMP3, -8+HI(RA)
+    |  li AT, LJ_TFUNC
+    |  bne TMP0, AT, >5
+    |.  addiu TMP2, TMP2, -LJ_TTAB
+    |  lbu TMP1, CFUNC:TMP1->ffid
+    |  addiu TMP3, TMP3, -LJ_TNIL
+    |   srl TMP0, RD, 1
+    |  or TMP2, TMP2, TMP3
+    |  addiu TMP1, TMP1, -FF_next_N
+    |   addu TMP0, PC, TMP0
+    |  or TMP1, TMP1, TMP2
+    |  bnez TMP1, >5
+    |.  lui TMP2, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  addu PC, TMP0, TMP2
+    |  lui TMP1, 0xfffe
+    |  ori TMP1, TMP1, 0x7fff
+    |  sw r0, -8+LO(RA)			// Initialize control var.
+    |  sw TMP1, -8+HI(RA)
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  li TMP3, BC_JMP
+    |   li TMP1, BC_ITERC
+    |  sb TMP3, -4+OFS_OP(PC)
+    |   addu PC, TMP0, TMP2
+    |  b <1
+    |.  sb TMP1, OFS_OP(PC)
+    break;
+
+  case BC_VARG:
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  lw TMP0, FRAME_PC(BASE)
+    |  decode_RDtoRC8 RC, RD
+    |   decode_RB8a RB, INS
+    |  addu RC, BASE, RC
+    |   decode_RB8b RB
+    |   addu RA, BASE, RA
+    |  addiu RC, RC, FRAME_VARG
+    |   addu TMP2, RA, RB
+    |  addiu TMP3, BASE, -8		// TMP3 = vtop
+    |  subu RC, RC, TMP0		// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  beqz RB, >5			// Copy all varargs?
+    |.  subu TMP1, TMP3, RC
+    |  addiu TMP2, TMP2, -16
+    |1:  // Copy vararg slots to destination slots.
+    |  lw CARG1, HI(RC)
+    |  sltu AT, RC, TMP3
+    |   lw CARG2, LO(RC)
+    |    addiu RC, RC, 8
+    |  movz CARG1, TISNIL, AT
+    |  sw CARG1, HI(RA)
+    |   sw CARG2, LO(RA)
+    |  sltu AT, RA, TMP2
+    |  bnez AT, <1
+    |.   addiu RA, RA, 8
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  lw TMP0, L->maxstack
+    |  blez TMP1, <3			// No vararg slots?
+    |.  li MULTRES, 8			// MULTRES = (0+1)*8
+    |  addu TMP2, RA, TMP1
+    |  sltu AT, TMP0, TMP2
+    |  bnez AT, >7
+    |.  addiu MULTRES, TMP1, 8
+    |6:
+    |  ldc1 f0, 0(RC)
+    |   addiu RC, RC, 8
+    |  sdc1 f0, 0(RA)
+    |  sltu AT, RC, TMP3
+    |  bnez AT, <6			// More vararg slots?
+    |.  addiu RA, RA, 8
+    |  b <3
+    |.  nop
+    |
+    |7:  // Grow stack for varargs.
+    |  load_got lj_state_growstack
+    |   sw RA, L->top
+    |  subu RA, RA, BASE
+    |   sw BASE, L->base
+    |  subu BASE, RC, BASE		// Need delta, because BASE may change.
+    |   sw PC, SAVE_PC
+    |  srl CARG2, TMP1, 3
+    |  call_intern lj_state_growstack	// (lua_State *L, int n)
+    |.  move CARG1, L
+    |  move RC, BASE
+    |  lw BASE, L->base
+    |  addu RA, BASE, RA
+    |  addu RC, BASE, RC
+    |  b <6
+    |.  addiu TMP3, BASE, -8
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RD = extra_nresults*8
+    |  addu RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
+    |  // Fall through. Assumes BC_RET follows.
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lw PC, FRAME_PC(BASE)
+    |   addu RA, BASE, RA
+    |    move MULTRES, RD
+    |1:
+    |  andi TMP0, PC, FRAME_TYPE
+    |  bnez TMP0, ->BC_RETV_Z
+    |.  xori TMP1, PC, FRAME_VARG
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
+    |   lw INS, -4(PC)
+    |    addiu TMP2, BASE, -8
+    |    addiu RC, RD, -8
+    |  decode_RA8a TMP0, INS
+    |   decode_RB8a RB, INS
+    |  decode_RA8b TMP0
+    |   decode_RB8b RB
+    |   addu TMP3, TMP2, RB
+    |  beqz RC, >3
+    |.  subu BASE, TMP2, TMP0
+    |2:
+    |   ldc1 f0, 0(RA)
+    |    addiu RA, RA, 8
+    |  addiu RC, RC, -8
+    |   sdc1 f0, 0(TMP2)
+    |  bnez RC, <2
+    |.   addiu TMP2, TMP2, 8
+    |3:
+    |  addiu TMP3, TMP3, -8
+    |5:
+    |  sltu AT, TMP2, TMP3
+    |  bnez AT, >6
+    |.  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lw TMP1, LFUNC:TMP1->pc
+    |  lw KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  sw TISNIL, HI(TMP2)
+    |  b <5
+    |.  addiu TMP2, TMP2, 8
+    |
+    |->BC_RETV_Z:  // Non-standard return case.
+    |  andi TMP2, TMP1, FRAME_TYPEP
+    |  bnez TMP2, ->vm_return
+    |.  nop
+    |  // Return from vararg function: relocate BASE down.
+    |  subu BASE, BASE, TMP1
+    |  b <1
+    |.  lw PC, FRAME_PC(BASE)
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lw PC, FRAME_PC(BASE)
+    |   addu RA, BASE, RA
+    |    move MULTRES, RD
+    |  andi TMP0, PC, FRAME_TYPE
+    |  bnez TMP0, ->BC_RETV_Z
+    |.  xori TMP1, PC, FRAME_VARG
+    |
+    |  lw INS, -4(PC)
+    |   addiu TMP2, BASE, -8
+    if (op == BC_RET1) {
+      |  ldc1 f0, 0(RA)
+    }
+    |  decode_RB8a RB, INS
+    |   decode_RA8a RA, INS
+    |  decode_RB8b RB
+    |   decode_RA8b RA
+    if (op == BC_RET1) {
+      |  sdc1 f0, 0(TMP2)
+    }
+    |   subu BASE, TMP2, RA
+    |5:
+    |  sltu AT, RD, RB
+    |  bnez AT, >6
+    |.  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lw TMP1, LFUNC:TMP1->pc
+    |  lw KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  addiu TMP2, TMP2, 8
+    |  addiu RD, RD, 8
+    |  b <5
+    if (op == BC_RET1) {
+      |.  sw TISNIL, HI(TMP2)
+    } else {
+      |.  sw TISNIL, -8+HI(TMP2)
+    }
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RD = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  addu RA, BASE, RA
+    if (vk) {
+      |  ldc1 f0, FORL_IDX*8(RA)
+      |  ldc1 f4, FORL_STEP*8(RA)
+      |  ldc1 f2, FORL_STOP*8(RA)
+      |   lw TMP3, FORL_STEP*8+HI(RA)
+      |  add.d f0, f0, f4
+      |  sdc1 f0, FORL_IDX*8(RA)
+    } else {
+      |  lw TMP1, FORL_IDX*8+HI(RA)
+      |  lw TMP3, FORL_STEP*8+HI(RA)
+      |  lw TMP2, FORL_STOP*8+HI(RA)
+      |  sltiu TMP1, TMP1, LJ_TISNUM
+      |  sltiu TMP0, TMP3, LJ_TISNUM
+      |  sltiu TMP2, TMP2, LJ_TISNUM
+      |  and TMP1, TMP1, TMP0
+      |  and TMP1, TMP1, TMP2
+      |   ldc1 f0, FORL_IDX*8(RA)
+      |  beqz TMP1, ->vmeta_for
+      |.  ldc1 f2, FORL_STOP*8(RA)
+    }
+    if (op != BC_JFORL) {
+      |  srl RD, RD, 1
+      |  lui TMP0, (-(BCBIAS_J*4 >> 16) & 65535)
+    }
+    |  c.le.d 0, f0, f2
+    |  c.le.d 1, f2, f0
+    |  sdc1 f0, FORL_EXT*8(RA)
+    if (op == BC_JFORI) {
+      |  li TMP1, 1
+      |  li TMP2, 1
+      |   addu TMP0, RD, TMP0
+      |  slt TMP3, TMP3, r0
+      |  movf TMP1, r0, 0
+      |   addu PC, PC, TMP0
+      |  movf TMP2, r0, 1
+      |   lhu RD, -4+OFS_RD(PC)
+      |  movn TMP1, TMP2, TMP3
+      |  bnez TMP1, =>BC_JLOOP
+      |.  decode_RD8b RD
+    } else if (op == BC_JFORL) {
+      |  li TMP1, 1
+      |  li TMP2, 1
+      |  slt TMP3, TMP3, r0
+      |  movf TMP1, r0, 0
+      |  movf TMP2, r0, 1
+      |  movn TMP1, TMP2, TMP3
+      |  bnez TMP1, =>BC_JLOOP
+      |.  nop
+    } else {
+      |  addu TMP1, RD, TMP0
+      |  slt TMP3, TMP3, r0
+      |  move TMP2, TMP1
+      if (op == BC_FORI) {
+	|  movt TMP1, r0, 0
+	|  movt TMP2, r0, 1
+      } else {
+	|  movf TMP1, r0, 0
+	|  movf TMP2, r0, 1
+      }
+      |  movn TMP1, TMP2, TMP3
+      |  addu PC, PC, TMP1
+    }
+    |  ins_next
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RD = target
+    |  addu RA, BASE, RA
+    |  lw TMP1, HI(RA)
+    |  beq TMP1, TISNIL, >1		// Stop if iterator returned nil.
+    |.  lw TMP2, LO(RA)
+    if (op == BC_JITERL) {
+      |  sw TMP1, -8+HI(RA)
+      |  b =>BC_JLOOP
+      |.  sw TMP2, -8+LO(RA)
+    } else {
+      |  branch_RD			// Otherwise save control var + branch.
+      |  sw TMP1, -8+HI(RA)
+      |   sw TMP2, -8+LO(RA)
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base*8 (ignored), RD = traceno*8
+    |  lw TMP1, DISPATCH_J(trace)(DISPATCH)
+    |  srl RD, RD, 1
+    |   li AT, 0
+    |  addu TMP1, TMP1, RD
+    |  // Traces on MIPS don't store the trace number, so use 0.
+    |   sw AT, DISPATCH_GL(vmstate)(DISPATCH)
+    |  lw TRACE:TMP2, 0(TMP1)
+    |   sw BASE, DISPATCH_GL(jit_base)(DISPATCH)
+    |   sw L, DISPATCH_GL(jit_L)(DISPATCH)
+    |  lw TMP2, TRACE:TMP2->mcode
+    |  jr TMP2
+    |.  addiu JGL, DISPATCH, GG_DISP2G+32768
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RD = target
+    |  branch_RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lw TMP2, L->maxstack
+    |   lbu TMP1, -4+PC2PROTO(numparams)(PC)
+    |    lw KBASE, -4+PC2PROTO(k)(PC)
+    |  sltu AT, TMP2, RA
+    |  bnez AT, ->vm_growstack_l
+    |.  sll TMP1, TMP1, 3
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+    }
+    |2:
+    |  sltu AT, NARGS8:RC, TMP1		// Check for missing parameters.
+    |  bnez AT, >3
+    |.  addu AT, BASE, NARGS8:RC
+    if (op == BC_JFUNCF) {
+      |  decode_RD8a RD, INS
+      |  b =>BC_JLOOP
+      |.  decode_RD8b RD
+    } else {
+      |  ins_next2
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  sw TISNIL, HI(AT)
+    |  b <2
+    |.  addiu NARGS8:RC, NARGS8:RC, 8
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |   addu TMP1, BASE, RC
+    |  lw TMP2, L->maxstack
+    |  addu TMP0, RA, RC
+    |   sw LFUNC:RB, LO(TMP1)		// Store copy of LFUNC.
+    |   addiu TMP3, RC, 8+FRAME_VARG
+    |  sltu AT, TMP0, TMP2
+    |    lw KBASE, -4+PC2PROTO(k)(PC)
+    |  beqz AT, ->vm_growstack_l
+    |.  sw TMP3, HI(TMP1)		// Store delta + FRAME_VARG.
+    |  lbu TMP2, -4+PC2PROTO(numparams)(PC)
+    |   move RA, BASE
+    |   move RC, TMP1
+    |  ins_next1
+    |  beqz TMP2, >3
+    |.  addiu BASE, TMP1, 8
+    |1:
+    |  lw TMP0, HI(RA)
+    |   lw TMP3, LO(RA)
+    |  sltu AT, RA, RC			// Less args than parameters?
+    |  move CARG1, TMP0
+    |  movz TMP0, TISNIL, AT		// Clear missing parameters.
+    |  movn CARG1, TISNIL, AT		// Clear old fixarg slot (help the GC).
+    |   sw TMP3, 8+LO(TMP1)
+    |    addiu TMP2, TMP2, -1
+    |  sw TMP0, 8+HI(TMP1)
+    |    addiu TMP1, TMP1, 8
+    |  sw CARG1, HI(RA)
+    |  bnez TMP2, <1
+    |.   addiu RA, RA, 8
+    |3:
+    |  ins_next2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  lw CFUNCADDR, CFUNC:RB->f
+    } else {
+      |  lw CFUNCADDR, DISPATCH_GL(wrapf)(DISPATCH)
+    }
+    |  addu TMP1, RA, NARGS8:RC
+    |  lw TMP2, L->maxstack
+    |   addu RC, BASE, NARGS8:RC
+    |  sw BASE, L->base
+    |  sltu AT, TMP2, TMP1
+    |   sw RC, L->top
+    |    li_vmstate C
+    if (op == BC_FUNCCW) {
+      |  lw CARG2, CFUNC:RB->f
+    }
+    |  bnez AT, ->vm_growstack_c	// Need to grow stack.
+    |.  move CARG1, L
+    |  jalr CFUNCADDR			// (lua_State *L [, lua_CFunction f])
+    |.   st_vmstate
+    |  // Returns nresults.
+    |  lw BASE, L->base
+    |   sll RD, CRET1, 3
+    |  lw TMP1, L->top
+    |    li_vmstate INTERP
+    |  lw PC, FRAME_PC(BASE)		// Fetch PC of caller.
+    |   subu RA, TMP1, RD		// RA = L->top - nresults*8
+    |  b ->vm_returnc
+    |.   st_vmstate
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.4byte .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.4byte 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.4byte .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.4byte .Lframe0\n"
+	"\t.4byte .Lbegin\n"
+	"\t.4byte %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x9f\n\t.sleb128 1\n"
+	"\t.byte 0x9e\n\t.sleb128 2\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 23; i >= 16; i--)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 26-i);
+    for (i = 30; i >= 20; i -= 2)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+32+i, 42-i);
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.4byte .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.4byte .Lframe0\n"
+	"\t.4byte lj_vm_ffi_call\n"
+	"\t.4byte %d\n"
+	"\t.byte 0x9f\n\t.uleb128 1\n"
+	"\t.byte 0x90\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0x10\n"
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+    fprintf(ctx->fp, "\t.section .eh_frame,\"aw\",@progbits\n");
+    fprintf(ctx->fp,
+	"\t.globl lj_err_unwind_dwarf\n"
+	".Lframe1:\n"
+	"\t.4byte .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.4byte 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0\n"
+	"\t.4byte lj_err_unwind_dwarf\n"
+	"\t.byte 0\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.4byte .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.4byte .LASFDE2-.Lframe1\n"
+	"\t.4byte .Lbegin\n"
+	"\t.4byte %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x9f\n\t.sleb128 1\n"
+	"\t.byte 0x9e\n\t.sleb128 2\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 23; i >= 16; i--)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 26-i);
+    for (i = 30; i >= 20; i -= 2)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+32+i, 42-i);
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE2:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.4byte .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.4byte 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.4byte .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.4byte .LASFDE3-.Lframe2\n"
+	"\t.4byte lj_vm_ffi_call\n"
+	"\t.4byte %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x9f\n\t.uleb128 1\n"
+	"\t.byte 0x90\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0x10\n"
+	"\t.align 2\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/lib/luajit/src/vm_ppc.dasc b/lib/luajit/src/vm_ppc.dasc
new file mode 100644
index 00000000..da75f556
--- /dev/null
+++ b/lib/luajit/src/vm_ppc.dasc
@@ -0,0 +1,5137 @@
+|// Low-level VM code for PowerPC CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch ppc
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// DynASM defines used by the PPC port:
+|//
+|// P64     64 bit pointers (only for GPR64 testing).
+|//         Note: a full PPC64 _LP64 port is not planned.
+|// GPR64   64 bit registers (but possibly 32 bit pointers, e.g. PS3).
+|//         Affects reg saves, stack layout, carry/overflow/dot flags etc.
+|// FRAME32 Use 32 bit frame layout, even with GPR64 (Xbox 360).
+|// TOC     Need table of contents (64 bit or 32 bit variant, e.g. PS3).
+|//         Function pointers are really a struct: code, TOC, env (optional).
+|// TOCENV  Function pointers have an environment pointer, too (not on PS3).
+|// PPE     Power Processor Element of Cell (PS3) or Xenon (Xbox 360).
+|//         Must avoid (slow) micro-coded instructions.
+|
+|.if P64
+|.define TOC, 1
+|.define TOCENV, 1
+|.macro lpx, a, b, c; ldx a, b, c; .endmacro
+|.macro lp, a, b; ld a, b; .endmacro
+|.macro stp, a, b; std a, b; .endmacro
+|.define decode_OPP, decode_OP8
+|.if FFI
+|// Missing: Calling conventions, 64 bit regs, TOC.
+|.error lib_ffi not yet implemented for PPC64
+|.endif
+|.else
+|.macro lpx, a, b, c; lwzx a, b, c; .endmacro
+|.macro lp, a, b; lwz a, b; .endmacro
+|.macro stp, a, b; stw a, b; .endmacro
+|.define decode_OPP, decode_OP4
+|.endif
+|
+|// Convenience macros for TOC handling.
+|.if TOC
+|// Linker needs a TOC patch area for every external call relocation.
+|.macro blex, target; bl extern target@plt; nop; .endmacro
+|.macro .toc, a, b; a, b; .endmacro
+|.if P64
+|.define TOC_OFS,	 8
+|.define ENV_OFS,	16
+|.else
+|.define TOC_OFS,	4
+|.define ENV_OFS,	8
+|.endif
+|.else  // No TOC.
+|.macro blex, target; bl extern target@plt; .endmacro
+|.macro .toc, a, b; .endmacro
+|.endif
+|.macro .tocenv, a, b; .if TOCENV; a, b; .endif; .endmacro
+|
+|.macro .gpr64, a, b; .if GPR64; a, b; .endif; .endmacro
+|
+|.macro andix., y, a, i
+|.if PPE
+|  rlwinm y, a, 0, 31-lj_fls(i), 31-lj_ffs(i)
+|  cmpwi y, 0
+|.else
+|  andi. y, a, i
+|.endif
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|// Don't use: r1 = sp, r2 and r13 = reserved (TOC, TLS or SDATA)
+|
+|// The following must be C callee-save (but BASE is often refetched).
+|.define BASE,		r14	// Base of current Lua stack frame.
+|.define KBASE,		r15	// Constants of current Lua function.
+|.define PC,		r16	// Next PC.
+|.define DISPATCH,	r17	// Opcode dispatch table.
+|.define LREG,		r18	// Register holding lua_State (also in SAVE_L).
+|.define MULTRES,	r19	// Size of multi-result: (nresults+1)*8.
+|.define JGL,		r31	// On-trace: global_State + 32768.
+|
+|// Constants for type-comparisons, stores and conversions. C callee-save.
+|.define TISNUM,	r22
+|.define TISNIL,	r23
+|.define ZERO,		r24
+|.define TOBIT,		f30	// 2^52 + 2^51.
+|.define TONUM,		f31	// 2^52 + 2^51 + 2^31.
+|
+|// The following temporaries are not saved across C calls, except for RA.
+|.define RA,		r20	// Callee-save.
+|.define RB,		r10
+|.define RC,		r11
+|.define RD,		r12
+|.define INS,		r7	// Overlaps CARG5.
+|
+|.define TMP0,		r0
+|.define TMP1,		r8
+|.define TMP2,		r9
+|.define TMP3,		r6	// Overlaps CARG4.
+|
+|// Saved temporaries.
+|.define SAVE0,		r21
+|
+|// Calling conventions.
+|.define CARG1,		r3
+|.define CARG2,		r4
+|.define CARG3,		r5
+|.define CARG4,		r6	// Overlaps TMP3.
+|.define CARG5,		r7	// Overlaps INS.
+|
+|.define FARG1,		f1
+|.define FARG2,		f2
+|
+|.define CRET1,		r3
+|.define CRET2,		r4
+|
+|.define TOCREG,	r2	// TOC register (only used by C code).
+|.define ENVREG,	r11	// Environment pointer (nested C functions).
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.if GPR64
+|.if FRAME32
+|
+|//			456(sp) // \ 32/64 bit C frame info
+|.define TONUM_LO,	452(sp) // |
+|.define TONUM_HI,	448(sp) // |
+|.define TMPD_LO,	444(sp) // |
+|.define TMPD_HI,	440(sp) // |
+|.define SAVE_CR,	432(sp) // | 64 bit CR save.
+|.define SAVE_ERRF,	424(sp) //  > Parameter save area.
+|.define SAVE_NRES,	420(sp) // |
+|.define SAVE_L,	416(sp) // |
+|.define SAVE_PC,	412(sp) // |
+|.define SAVE_MULTRES,	408(sp) // |
+|.define SAVE_CFRAME,	400(sp) // / 64 bit C frame chain.
+|//			392(sp) // Reserved.
+|.define CFRAME_SPACE,	384     // Delta for sp.
+|// Back chain for sp:	384(sp) <-- sp entering interpreter
+|.define SAVE_LR,	376(sp) // 32 bit LR stored in hi-part.
+|.define SAVE_GPR_,	232     // .. 232+18*8: 64 bit GPR saves.
+|.define SAVE_FPR_,	88      // .. 88+18*8: 64 bit FPR saves.
+|//			80(sp) // Needed for 16 byte stack frame alignment.
+|//			16(sp)  // Callee parameter save area (ABI mandated).
+|//			8(sp)   // Reserved
+|// Back chain for sp:	0(sp)   <-- sp while in interpreter
+|// 32 bit sp stored in hi-part of 0(sp).
+|
+|.define TMPD_BLO,	447(sp)
+|.define TMPD,		TMPD_HI
+|.define TONUM_D,	TONUM_HI
+|
+|.else
+|
+|//			508(sp) // \ 32 bit C frame info.
+|.define SAVE_ERRF,	472(sp) // |
+|.define SAVE_NRES,	468(sp) // |
+|.define SAVE_L,	464(sp) //  > Parameter save area.
+|.define SAVE_PC,	460(sp) // |
+|.define SAVE_MULTRES,	456(sp) // |
+|.define SAVE_CFRAME,	448(sp) // / 64 bit C frame chain.
+|.define SAVE_LR,	416(sp)
+|.define CFRAME_SPACE,	400     // Delta for sp.
+|// Back chain for sp:	400(sp) <-- sp entering interpreter
+|.define SAVE_FPR_,	256     // .. 256+18*8: 64 bit FPR saves.
+|.define SAVE_GPR_,	112     // .. 112+18*8: 64 bit GPR saves.
+|//			48(sp)  // Callee parameter save area (ABI mandated).
+|.define SAVE_TOC,	40(sp)  // TOC save area.
+|.define TMPD_LO,	36(sp)  // \ Link editor temp (ABI mandated).
+|.define TMPD_HI,	32(sp)  // /
+|.define TONUM_LO,	28(sp)  // \ Compiler temp (ABI mandated).
+|.define TONUM_HI,	24(sp)  // /
+|// Next frame lr:	16(sp)
+|.define SAVE_CR,	8(sp)  // 64 bit CR save.
+|// Back chain for sp:	0(sp)	<-- sp while in interpreter
+|
+|.define TMPD_BLO,	39(sp)
+|.define TMPD,		TMPD_HI
+|.define TONUM_D,	TONUM_HI
+|
+|.endif
+|.else
+|
+|.define SAVE_LR,	276(sp)
+|.define CFRAME_SPACE,	272     // Delta for sp.
+|// Back chain for sp:	272(sp) <-- sp entering interpreter
+|.define SAVE_FPR_,	128     // .. 128+18*8: 64 bit FPR saves.
+|.define SAVE_GPR_,	56      // .. 56+18*4: 32 bit GPR saves.
+|.define SAVE_CR,	52(sp)  // 32 bit CR save.
+|.define SAVE_ERRF,	48(sp)  // 32 bit C frame info.
+|.define SAVE_NRES,	44(sp)
+|.define SAVE_CFRAME,	40(sp)
+|.define SAVE_L,	36(sp)
+|.define SAVE_PC,	32(sp)
+|.define SAVE_MULTRES,	28(sp)
+|.define UNUSED1,	24(sp)
+|.define TMPD_LO,	20(sp)
+|.define TMPD_HI,	16(sp)
+|.define TONUM_LO,	12(sp)
+|.define TONUM_HI,	8(sp)
+|// Next frame lr:	4(sp)
+|// Back chain for sp:	0(sp)	<-- sp while in interpreter
+|
+|.define TMPD_BLO,	23(sp)
+|.define TMPD,		TMPD_HI
+|.define TONUM_D,	TONUM_HI
+|
+|.endif
+|
+|.macro save_, reg
+|.if GPR64
+|  std r..reg, SAVE_GPR_+(reg-14)*8(sp)
+|.else
+|  stw r..reg, SAVE_GPR_+(reg-14)*4(sp)
+|.endif
+|  stfd f..reg, SAVE_FPR_+(reg-14)*8(sp)
+|.endmacro
+|.macro rest_, reg
+|.if GPR64
+|  ld r..reg, SAVE_GPR_+(reg-14)*8(sp)
+|.else
+|  lwz r..reg, SAVE_GPR_+(reg-14)*4(sp)
+|.endif
+|  lfd f..reg, SAVE_FPR_+(reg-14)*8(sp)
+|.endmacro
+|
+|.macro saveregs
+|.if GPR64 and not FRAME32
+|  stdu sp, -CFRAME_SPACE(sp)
+|.else
+|  stwu sp, -CFRAME_SPACE(sp)
+|.endif
+|  save_ 14; save_ 15; save_ 16
+|  mflr r0
+|  save_ 17; save_ 18; save_ 19; save_ 20; save_ 21; save_ 22
+|.if GPR64 and not FRAME32
+|  std r0, SAVE_LR
+|.else
+|  stw r0, SAVE_LR
+|.endif
+|  save_ 23; save_ 24; save_ 25
+|  mfcr r0
+|  save_ 26; save_ 27; save_ 28; save_ 29; save_ 30; save_ 31
+|.if GPR64
+|  std r0, SAVE_CR
+|.else
+|  stw r0, SAVE_CR
+|.endif
+|  .toc std TOCREG, SAVE_TOC
+|.endmacro
+|
+|.macro restoreregs
+|.if GPR64 and not FRAME32
+|  ld r0, SAVE_LR
+|.else
+|  lwz r0, SAVE_LR
+|.endif
+|.if GPR64
+|  ld r12, SAVE_CR
+|.else
+|  lwz r12, SAVE_CR
+|.endif
+|  rest_ 14; rest_ 15; rest_ 16; rest_ 17; rest_ 18; rest_ 19
+|  mtlr r0;
+|.if PPE; mtocrf 0x20, r12; .else; mtcrf 0x38, r12; .endif
+|  rest_ 20; rest_ 21; rest_ 22; rest_ 23; rest_ 24; rest_ 25
+|.if PPE; mtocrf 0x10, r12; .endif
+|  rest_ 26; rest_ 27; rest_ 28; rest_ 29; rest_ 30; rest_ 31
+|.if PPE; mtocrf 0x08, r12; .endif
+|  addi sp, sp, CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|
+|//-----------------------------------------------------------------------
+|
+|// These basic macros should really be part of DynASM.
+|.macro srwi, rx, ry, n; rlwinm rx, ry, 32-n, n, 31; .endmacro
+|.macro slwi, rx, ry, n; rlwinm rx, ry, n, 0, 31-n; .endmacro
+|.macro rotlwi, rx, ry, n; rlwinm rx, ry, n, 0, 31; .endmacro
+|.macro rotlw, rx, ry, rn; rlwnm rx, ry, rn, 0, 31; .endmacro
+|.macro subi, rx, ry, i; addi rx, ry, -i; .endmacro
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; tw 4, sp, sp; .endmacro
+|
+|// int/FP conversions.
+|.macro tonum_i, freg, reg
+|  xoris reg, reg, 0x8000
+|  stw reg, TONUM_LO
+|  lfd freg, TONUM_D
+|  fsub freg, freg, TONUM
+|.endmacro
+|
+|.macro tonum_u, freg, reg
+|  stw reg, TONUM_LO
+|  lfd freg, TONUM_D
+|  fsub freg, freg, TOBIT
+|.endmacro
+|
+|.macro toint, reg, freg, tmpfreg
+|  fctiwz tmpfreg, freg
+|  stfd tmpfreg, TMPD
+|  lwz reg, TMPD_LO
+|.endmacro
+|
+|.macro toint, reg, freg
+|  toint reg, freg, freg
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Access to frame relative to BASE.
+|.define FRAME_PC,	-8
+|.define FRAME_FUNC,	-4
+|
+|// Instruction decode.
+|.macro decode_OP4, dst, ins; rlwinm dst, ins, 2, 22, 29; .endmacro
+|.macro decode_OP8, dst, ins; rlwinm dst, ins, 3, 21, 28; .endmacro
+|.macro decode_RA8, dst, ins; rlwinm dst, ins, 27, 21, 28; .endmacro
+|.macro decode_RB8, dst, ins; rlwinm dst, ins, 11, 21, 28; .endmacro
+|.macro decode_RC8, dst, ins; rlwinm dst, ins, 19, 21, 28; .endmacro
+|.macro decode_RD8, dst, ins; rlwinm dst, ins, 19, 13, 28; .endmacro
+|
+|.macro decode_OP1, dst, ins; rlwinm dst, ins, 0, 24, 31; .endmacro
+|.macro decode_RD4, dst, ins; rlwinm dst, ins, 18, 14, 29; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  lwz INS, 0(PC)
+|   addi PC, PC, 4
+|.endmacro
+|// Instruction decode+dispatch. Note: optimized for e300!
+|.macro ins_NEXT2
+|  decode_OPP TMP1, INS
+|  lpx TMP0, DISPATCH, TMP1
+|  mtctr TMP0
+|   decode_RB8 RB, INS
+|   decode_RD8 RD, INS
+|   decode_RA8 RA, INS
+|   decode_RC8 RC, INS
+|  bctr
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  lwz PC, LFUNC:RB->pc
+|  lwz INS, 0(PC)
+|   addi PC, PC, 4
+|  decode_OPP TMP1, INS
+|   decode_RA8 RA, INS
+|  lpx TMP0, DISPATCH, TMP1
+|   add RA, RA, BASE
+|  mtctr TMP0
+|  bctr
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  stw PC, FRAME_PC(BASE)
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checknum, reg; cmplw reg, TISNUM; .endmacro
+|.macro checknum, cr, reg; cmplw cr, reg, TISNUM; .endmacro
+|.macro checkstr, reg; cmpwi reg, LJ_TSTR; .endmacro
+|.macro checktab, reg; cmpwi reg, LJ_TTAB; .endmacro
+|.macro checkfunc, reg; cmpwi reg, LJ_TFUNC; .endmacro
+|.macro checknil, reg; cmpwi reg, LJ_TNIL; .endmacro
+|
+|.macro branch_RD
+|  srwi TMP0, RD, 1
+|  addis PC, PC, -(BCBIAS_J*4 >> 16)
+|  add PC, PC, TMP0
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro hotcheck, delta, target
+|  rlwinm TMP1, PC, 31, 25, 30
+|  addi TMP1, TMP1, GG_DISP2HOT
+|  lhzx TMP2, DISPATCH, TMP1
+|  addic. TMP2, TMP2, -delta
+|  sthx TMP2, DISPATCH, TMP1
+|  blt target
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP, ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL, ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state. Uses TMP0.
+|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
+|.macro st_vmstate; stw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp
+|  lwz tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|  // Assumes LJ_GC_BLACK is 0x04.
+|   rlwinm mark, mark, 0, 30, 28		// black2gray(tab)
+|  stw tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   stb mark, tab->marked
+|  stw tmp, tab->gclist
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: TMP2 = previous base.
+  |  andix. TMP0, PC, FRAME_P
+  |   li TMP1, LJ_TTRUE
+  |  beq ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  lwz PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
+  |  mr BASE, TMP2			// Restore caller base.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   stwu TMP1, FRAME_PC(RA)		// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  addi RD, RD, 8			// RD = (nresults+1)*8.
+  |   andix. TMP0, PC, FRAME_TYPE
+  |  cmpwi cr1, RD, 0
+  |  li CRET1, LUA_YIELD
+  |  beq cr1, ->vm_unwind_c_eh
+  |  mr MULTRES, RD
+  |   beq ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
+  |  // TMP0 = PC & FRAME_TYPE
+  |  cmpwi TMP0, FRAME_C
+  |   rlwinm TMP2, PC, 0, 0, 28
+  |    li_vmstate C
+  |   sub TMP2, BASE, TMP2		// TMP2 = previous base.
+  |  bney ->vm_returnp
+  |
+  |  addic. TMP1, RD, -8
+  |   stp TMP2, L->base
+  |   lwz TMP2, SAVE_NRES
+  |    subi BASE, BASE, 8
+  |    st_vmstate
+  |   slwi TMP2, TMP2, 3
+  |  beq >2
+  |1:
+  |  addic. TMP1, TMP1, -8
+  |   lfd f0, 0(RA)
+  |    addi RA, RA, 8
+  |   stfd f0, 0(BASE)
+  |    addi BASE, BASE, 8
+  |  bney <1
+  |
+  |2:
+  |  cmpw TMP2, RD			// More/less results wanted?
+  |  bne >6
+  |3:
+  |  stp BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  lp TMP0, SAVE_CFRAME		// Restore previous C frame.
+  |   li CRET1, 0			// Ok return status for vm_pcall.
+  |  stp TMP0, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  blr
+  |
+  |6:
+  |  ble >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  lwz TMP1, L->maxstack
+  |  cmplw BASE, TMP1
+  |  bge >8
+  |  stw TISNIL, 0(BASE)
+  |  addi RD, RD, 8
+  |  addi BASE, BASE, 8
+  |  b <2
+  |
+  |7:  // Less results wanted.
+  |  subfic TMP3, TMP2, 0		// LUA_MULTRET+1 case?
+  |   sub TMP0, RD, TMP2
+  |  subfe TMP1, TMP1, TMP1		// TMP1 = TMP2 == 0 ? 0 : -1
+  |   and TMP0, TMP0, TMP1
+  |  sub BASE, BASE, TMP0		// Either keep top or shrink it.
+  |  b <3
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  stp BASE, L->top			// Save current top held in BASE (yes).
+  |   mr SAVE0, RD
+  |  mr CARG2, TMP2
+  |  mr CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |    lwz TMP2, SAVE_NRES
+  |   mr RD, SAVE0
+  |    slwi TMP2, TMP2, 3
+  |  lp BASE, L->top			// Need the (realloced) L->top in BASE.
+  |  b <2
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mr sp, CARG1
+  |  mr CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  lwz L, SAVE_L
+  |  .toc ld TOCREG, SAVE_TOC
+  |   li TMP0, ~LJ_VMST_C
+  |  lwz GL:TMP1, L->glref
+  |   stw TMP0, GL:TMP1->vmstate
+  |  b ->vm_leave_unw
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |.if GPR64
+  |  rldicr sp, CARG1, 0, 61
+  |.else
+  |  rlwinm sp, CARG1, 0, 0, 29
+  |.endif
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  lwz L, SAVE_L
+  |  .toc ld TOCREG, SAVE_TOC
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |  lp BASE, L->base
+  |     lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     li ZERO, 0
+  |     stw TMP3, TMPD
+  |  li TMP1, LJ_TFALSE
+  |     ori TMP3, TMP3, 0x0004		// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     li TISNIL, LJ_TNIL
+  |    li_vmstate INTERP
+  |     lfs TOBIT, TMPD
+  |  lwz PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
+  |  la RA, -8(BASE)			// Results start at BASE-8.
+  |     stw TMP3, TMPD
+  |   addi DISPATCH, DISPATCH, GG_G2DISP
+  |  stw TMP1, 0(RA)			// Prepend false to error message.
+  |  li RD, 16				// 2 results: false + error message.
+  |    st_vmstate
+  |     lfs TONUM, TMPD
+  |  b ->vm_returnc
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  li CARG2, LUA_MINSTACK
+  |  b >2
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  add RC, BASE, RC
+  |   sub RA, RA, BASE
+  |  stp BASE, L->base
+  |   addi PC, PC, 4			// Must point after first instruction.
+  |  stp RC, L->top
+  |   srwi CARG2, RA, 3
+  |2:
+  |  // L->base = new base, L->top = top
+  |   stw PC, SAVE_PC
+  |  mr CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  lp BASE, L->base
+  |  lp RC, L->top
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  sub RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mr L, CARG1
+  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  mr BASE, CARG2
+  |    lbz TMP1, L->status
+  |   stw L, SAVE_L
+  |  li PC, FRAME_CP
+  |  addi TMP0, sp, CFRAME_RESUME
+  |    addi DISPATCH, DISPATCH, GG_G2DISP
+  |   stw CARG3, SAVE_NRES
+  |    cmplwi TMP1, 0
+  |   stw CARG3, SAVE_ERRF
+  |  stp TMP0, L->cframe
+  |   stp CARG3, SAVE_CFRAME
+  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |    beq >3
+  |
+  |  // Resume after yield (like a return).
+  |  mr RA, BASE
+  |   lp BASE, L->base
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |   lp TMP1, L->top
+  |  lwz PC, FRAME_PC(BASE)
+  |     lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |    stb CARG3, L->status
+  |     stw TMP3, TMPD
+  |     ori TMP3, TMP3, 0x0004		// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     lfs TOBIT, TMPD
+  |   sub RD, TMP1, BASE
+  |     stw TMP3, TMPD
+  |     lus TMP0, 0x4338		// Hiword of 2^52 + 2^51 (double)
+  |   addi RD, RD, 8
+  |     stw TMP0, TONUM_HI
+  |    li_vmstate INTERP
+  |     li ZERO, 0
+  |    st_vmstate
+  |  andix. TMP0, PC, FRAME_TYPE
+  |   mr MULTRES, RD
+  |     lfs TONUM, TMPD
+  |     li TISNIL, LJ_TNIL
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  li PC, FRAME_CP
+  |  stw CARG4, SAVE_ERRF
+  |  b >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  li PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  lp TMP1, L:CARG1->cframe
+  |   stw CARG3, SAVE_NRES
+  |    mr L, CARG1
+  |   stw CARG1, SAVE_L
+  |    mr BASE, CARG2
+  |  stp sp, L->cframe			// Add our C frame to cframe chain.
+  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  stp TMP1, SAVE_CFRAME
+  |    addi DISPATCH, DISPATCH, GG_G2DISP
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  lp TMP2, L->base			// TMP2 = old base (used in vmeta_call).
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |   lp TMP1, L->top
+  |     lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  add PC, PC, BASE
+  |     stw TMP3, TMPD
+  |     li ZERO, 0
+  |     ori TMP3, TMP3, 0x0004		// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     lfs TOBIT, TMPD
+  |  sub PC, PC, TMP2			// PC = frame delta + frame type
+  |     stw TMP3, TMPD
+  |     lus TMP0, 0x4338		// Hiword of 2^52 + 2^51 (double)
+  |   sub NARGS8:RC, TMP1, BASE
+  |     stw TMP0, TONUM_HI
+  |    li_vmstate INTERP
+  |     lfs TONUM, TMPD
+  |     li TISNIL, LJ_TNIL
+  |    st_vmstate
+  |
+  |->vm_call_dispatch:
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  lwz TMP0, FRAME_PC(BASE)
+  |   lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  checkfunc TMP0; bne ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mr L, CARG1
+  |   lwz TMP0, L:CARG1->stack
+  |  stw CARG1, SAVE_L
+  |   lp TMP1, L->top
+  |  stw CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   sub TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
+  |    lp TMP1, L->cframe
+  |    stp sp, L->cframe		// Add our C frame to cframe chain.
+  |  .toc lp CARG4, 0(CARG4)
+  |  li TMP2, 0
+  |   stw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  stw TMP2, SAVE_ERRF		// No error function.
+  |    stp TMP1, SAVE_CFRAME
+  |  mtctr CARG4
+  |  bctrl			// (lua_State *L, lua_CFunction func, void *ud)
+  |.if PPE
+  |  mr BASE, CRET1
+  |  cmpwi CRET1, 0
+  |.else
+  |  mr. BASE, CRET1
+  |.endif
+  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |    li PC, FRAME_CP
+  |   addi DISPATCH, DISPATCH, GG_G2DISP
+  |  bne <3				// Else continue with the call.
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
+  |// stack, so BASE doesn't need to be reloaded across these calls.
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
+  |  lwz TMP0, -12(BASE)		// Continuation.
+  |   mr RB, BASE
+  |   mr BASE, TMP2			// Restore caller BASE.
+  |    lwz LFUNC:TMP1, FRAME_FUNC(TMP2)
+  |.if FFI
+  |  cmplwi TMP0, 1
+  |.endif
+  |     lwz PC, -16(RB)			// Restore PC from [cont|PC].
+  |   subi TMP2, RD, 8
+  |    lwz TMP1, LFUNC:TMP1->pc
+  |   stwx TISNIL, RA, TMP2		// Ensure one valid arg.
+  |.if FFI
+  |  ble >1
+  |.endif
+  |    lwz KBASE, PC2PROTO(k)(TMP1)
+  |  // BASE = base, RA = resultptr, RB = meta base
+  |  mtctr TMP0
+  |  bctr				// Jump to continuation.
+  |
+  |.if FFI
+  |1:
+  |  beq ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |  subi TMP1, RB, 16
+  |  sub RC, TMP1, BASE
+  |  b ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, RB = meta base
+  |  lwz INS, -4(PC)
+  |   subi CARG2, RB, 16
+  |  decode_RB8 SAVE0, INS
+  |   lfd f0, 0(RA)
+  |  add TMP1, BASE, SAVE0
+  |   stp BASE, L->base
+  |  cmplw TMP1, CARG2
+  |   sub CARG3, CARG2, TMP1
+  |  decode_RA8 RA, INS
+  |   stfd f0, 0(CARG2)
+  |  bney ->BC_CAT_Z
+  |   stfdx f0, BASE, RA
+  |  b ->cont_nop
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TSTR
+  |   decode_RB8 RB, INS
+  |  stw STR:RC, 4(CARG3)
+  |   add CARG2, BASE, RB
+  |  stw TMP0, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tgets:
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TTAB
+  |  stw TAB:RB, 4(CARG2)
+  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
+  |  stw TMP0, 0(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   stw STR:RC, 4(CARG3)
+  |   stw TMP1, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tgetb:			// TMP0 = index
+  |.if not DUALNUM
+  |  tonum_u f0, TMP0
+  |.endif
+  |   decode_RB8 RB, INS
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   add CARG2, BASE, RB
+  |.if DUALNUM
+  |  stw TISNUM, 0(CARG3)
+  |  stw TMP0, 4(CARG3)
+  |.else
+  |  stfd f0, 0(CARG3)
+  |.endif
+  |  b >1
+  |
+  |->vmeta_tgetv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |  stp BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cmplwi CRET1, 0
+  |  beq >3
+  |   lfd f0, 0(CRET1)
+  |  ins_next1
+  |   stfdx f0, BASE, RA
+  |  ins_next2
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  subfic TMP1, BASE, FRAME_CONT
+  |  lp BASE, L->top
+  |  stw PC, -16(BASE)			// [cont|PC]
+  |   add PC, TMP1, BASE
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   li NARGS8:RC, 16			// 2 args for func(t, k).
+  |  b ->vm_call_dispatch_f
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TSTR
+  |   decode_RB8 RB, INS
+  |  stw STR:RC, 4(CARG3)
+  |   add CARG2, BASE, RB
+  |  stw TMP0, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tsets:
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TTAB
+  |  stw TAB:RB, 4(CARG2)
+  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
+  |  stw TMP0, 0(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   stw STR:RC, 4(CARG3)
+  |   stw TMP1, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tsetb:			// TMP0 = index
+  |.if not DUALNUM
+  |  tonum_u f0, TMP0
+  |.endif
+  |   decode_RB8 RB, INS
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   add CARG2, BASE, RB
+  |.if DUALNUM
+  |  stw TISNUM, 0(CARG3)
+  |  stw TMP0, 4(CARG3)
+  |.else
+  |  stfd f0, 0(CARG3)
+  |.endif
+  |  b >1
+  |
+  |->vmeta_tsetv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |  stp BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cmplwi CRET1, 0
+  |   lfdx f0, BASE, RA
+  |  beq >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  ins_next1
+  |   stfd f0, 0(CRET1)
+  |  ins_next2
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  subfic TMP1, BASE, FRAME_CONT
+  |  lp BASE, L->top
+  |  stw PC, -16(BASE)			// [cont|PC]
+  |   add PC, TMP1, BASE
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   li NARGS8:RC, 24			// 3 args for func(t, k, v)
+  |  stfd f0, 16(BASE)			// Copy value to third argument.
+  |  b ->vm_call_dispatch_f
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  mr CARG1, L
+  |   subi PC, PC, 4
+  |.if DUALNUM
+  |  mr CARG2, RA
+  |.else
+  |  add CARG2, BASE, RA
+  |.endif
+  |   stw PC, SAVE_PC
+  |.if DUALNUM
+  |  mr CARG3, RD
+  |.else
+  |  add CARG3, BASE, RD
+  |.endif
+  |   stp BASE, L->base
+  |  decode_OP1 CARG4, INS
+  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  cmplwi CRET1, 1
+  |  bgt ->vmeta_binop
+  |  subfic CRET1, CRET1, 0
+  |4:
+  |  lwz INS, 0(PC)
+  |   addi PC, PC, 4
+  |  decode_RD4 TMP2, INS
+  |  addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+  |  and TMP2, TMP2, CRET1
+  |  add PC, PC, TMP2
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  lwz INS, -4(PC)
+  |   lfd f0, 0(RA)
+  |  decode_RA8 TMP1, INS
+  |   stfdx f0, BASE, TMP1
+  |  b ->cont_nop
+  |
+  |->cont_condt:			// RA = resultptr
+  |  lwz TMP0, 0(RA)
+  |  .gpr64 extsw TMP0, TMP0
+  |  subfic TMP0, TMP0, LJ_TTRUE	// Branch if result is true.
+  |  subfe CRET1, CRET1, CRET1
+  |  not CRET1, CRET1
+  |  b <4
+  |
+  |->cont_condf:			// RA = resultptr
+  |  lwz TMP0, 0(RA)
+  |  .gpr64 extsw TMP0, TMP0
+  |  subfic TMP0, TMP0, LJ_TTRUE	// Branch if result is false.
+  |  subfe CRET1, CRET1, CRET1
+  |  b <4
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  subi PC, PC, 4
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  mr CARG2, INS
+  |  subi PC, PC, 4
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_equal_cd		// (lua_State *L, BCIns op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.endif
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_nv:
+  |  add CARG3, KBASE, RC
+  |  add CARG4, BASE, RB
+  |  b >1
+  |->vmeta_arith_nv2:
+  |.if DUALNUM
+  |  mr CARG3, RC
+  |  mr CARG4, RB
+  |  b >1
+  |.endif
+  |
+  |->vmeta_unm:
+  |  mr CARG3, RD
+  |  mr CARG4, RD
+  |  b >1
+  |
+  |->vmeta_arith_vn:
+  |  add CARG3, BASE, RB
+  |  add CARG4, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_vv:
+  |  add CARG3, BASE, RB
+  |  add CARG4, BASE, RC
+  |.if DUALNUM
+  |  b >1
+  |.endif
+  |->vmeta_arith_vn2:
+  |->vmeta_arith_vv2:
+  |.if DUALNUM
+  |  mr CARG3, RB
+  |  mr CARG4, RC
+  |.endif
+  |1:
+  |  add CARG2, BASE, RA
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  decode_OP1 CARG5, INS		// Caveat: CARG5 overlaps INS.
+  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  cmplwi CRET1, 0
+  |  beq ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  sub TMP1, CRET1, BASE
+  |   stw PC, -16(CRET1)		// [cont|PC]
+  |   mr TMP2, BASE
+  |  addi PC, TMP1, FRAME_CONT
+  |   mr BASE, CRET1
+  |  li NARGS8:RC, 16			// 2 args for func(o1, o2).
+  |  b ->vm_call_dispatch
+  |
+  |->vmeta_len:
+#if LJ_52
+  |  mr SAVE0, CARG1
+#endif
+  |  mr CARG2, RD
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  cmplwi CRET1, 0
+  |  bne ->vmeta_binop			// Binop call for compatibility.
+  |  mr CARG1, SAVE0
+  |  b ->BC_LEN_Z
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8
+  |  mr CARG1, L
+  |   stp TMP2, L->base			// This is the callers base!
+  |  subi CARG2, BASE, 8
+  |   stw PC, SAVE_PC
+  |  add CARG3, BASE, RC
+  |   mr SAVE0, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  mr CARG1, L
+  |   stp BASE, L->base
+  |  subi CARG2, RA, 8
+  |   stw PC, SAVE_PC
+  |  add CARG3, RA, RC
+  |   mr SAVE0, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  lwz TMP1, FRAME_PC(BASE)
+  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
+  |   lwz LFUNC:RB, FRAME_FUNC(RA)	// Guaranteed to be a function here.
+  |  b ->BC_CALLT_Z
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mr CARG1, L
+  |   stp BASE, L->base
+  |  mr CARG2, RA
+  |   stw PC, SAVE_PC
+  |  mr SAVE0, INS
+  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
+  |.if JIT
+  |   decode_OP1 TMP0, SAVE0
+  |.endif
+  |  decode_RA8 RA, SAVE0
+  |.if JIT
+  |   cmpwi TMP0, BC_JFORI
+  |.endif
+  |  decode_RD8 RD, SAVE0
+  |.if JIT
+  |   beqy =>BC_JFORI
+  |.endif
+  |  b =>BC_FORI
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz CARG1, 4(BASE)
+  |  blt ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 0(BASE)
+  |    lwz CARG4, 8(BASE)
+  |   lwz CARG1, 4(BASE)
+  |    lwz CARG2, 12(BASE)
+  |  blt ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lfd FARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |  checknum CARG3; bge ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 0(BASE)
+  |    lfd FARG1, 0(BASE)
+  |   lwz CARG4, 8(BASE)
+  |    lfd FARG2, 8(BASE)
+  |  blt ->fff_fallback
+  |  checknum CARG3; bge ->fff_fallback
+  |  checknum CARG4; bge ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1.
+  |.macro ffgccheck
+  |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+  |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+  |  cmplw TMP0, TMP1
+  |  bgel ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  li TMP1, LJ_TFALSE
+  |   la RA, -8(BASE)
+  |  cmplw cr1, CARG3, TMP1
+  |    lwz PC, FRAME_PC(BASE)
+  |  bge cr1, ->fff_fallback
+  |   stw CARG3, 0(RA)
+  |  addi RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
+  |   stw CARG1, 4(RA)
+  |  beq ->fff_res			// Done if exactly 1 argument.
+  |  li TMP1, 8
+  |  subi RC, RC, 8
+  |1:
+  |  cmplw TMP1, RC
+  |   lfdx f0, BASE, TMP1
+  |   stfdx f0, RA, TMP1
+  |    addi TMP1, TMP1, 8
+  |  bney <1
+  |  b ->fff_res
+  |
+  |.ffunc type
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |  .gpr64 extsw CARG1, CARG1
+  |  subfc TMP0, TISNUM, CARG1
+  |  subfe TMP2, CARG1, CARG1
+  |  orc TMP1, TMP2, TMP0
+  |  addi TMP1, TMP1, ~LJ_TISNUM+1
+  |  slwi TMP1, TMP1, 3
+  |   la TMP2, CFUNC:RB->upvalue
+  |  lfdx FARG1, TMP2, TMP1
+  |  b ->fff_resn
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  checktab CARG3; bne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  lwz TAB:CARG1, TAB:CARG1->metatable
+  |2:
+  |  li CARG3, LJ_TNIL
+  |   cmplwi TAB:CARG1, 0
+  |  lwz STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
+  |   beq ->fff_restv
+  |  lwz TMP0, TAB:CARG1->hmask
+  |   li CARG3, LJ_TTAB			// Use metatable as default result.
+  |  lwz TMP1, STR:RC->hash
+  |  lwz NODE:TMP2, TAB:CARG1->node
+  |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+  |  slwi TMP0, TMP1, 5
+  |  slwi TMP1, TMP1, 3
+  |  sub TMP1, TMP0, TMP1
+  |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  lwz CARG4, NODE:TMP2->key
+  |   lwz TMP0, 4+offsetof(Node, key)(NODE:TMP2)
+  |    lwz CARG2, NODE:TMP2->val
+  |     lwz TMP1, 4+offsetof(Node, val)(NODE:TMP2)
+  |  checkstr CARG4; bne >4
+  |   cmpw TMP0, STR:RC; beq >5
+  |4:
+  |  lwz NODE:TMP2, NODE:TMP2->next
+  |  cmplwi NODE:TMP2, 0
+  |  beq ->fff_restv			// Not found, keep default result.
+  |  b <3
+  |5:
+  |  checknil CARG2
+  |  beq ->fff_restv			// Ditto for nil value.
+  |  mr CARG3, CARG2			// Return value of mt.__metatable.
+  |  mr CARG1, TMP1
+  |  b ->fff_restv
+  |
+  |6:
+  |  cmpwi CARG3, LJ_TUDATA; beq <1
+  |  .gpr64 extsw CARG3, CARG3
+  |  subfc TMP0, TISNUM, CARG3
+  |  subfe TMP2, CARG3, CARG3
+  |  orc TMP1, TMP2, TMP0
+  |  addi TMP1, TMP1, ~LJ_TISNUM+1
+  |  slwi TMP1, TMP1, 2
+  |   la TMP2, DISPATCH_GL(gcroot[GCROOT_BASEMT])(DISPATCH)
+  |  lwzx TAB:CARG1, TMP2, TMP1
+  |  b <2
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |   checktab CARG3; bne ->fff_fallback
+  |  lwz TAB:TMP1, TAB:CARG1->metatable
+  |   checktab CARG4; bne ->fff_fallback
+  |  cmplwi TAB:TMP1, 0
+  |   lbz TMP3, TAB:CARG1->marked
+  |  bne ->fff_fallback
+  |   andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+  |    stw TAB:CARG2, TAB:CARG1->metatable
+  |   beq ->fff_restv
+  |  barrierback TAB:CARG1, TMP3, TMP0
+  |  b ->fff_restv
+  |
+  |.ffunc rawget
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG4, 0(BASE)
+  |    lwz TAB:CARG2, 4(BASE)
+  |  blt ->fff_fallback
+  |  checktab CARG4; bne ->fff_fallback
+  |   la CARG3, 8(BASE)
+  |   mr CARG1, L
+  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
+  |  // Returns cTValue *.
+  |  lfd FARG1, 0(CRET1)
+  |  b ->fff_resn
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |    lfd FARG1, 0(BASE)
+  |  bne ->fff_fallback			// Exactly one argument.
+  |   checknum CARG1; bgt ->fff_fallback
+  |  b ->fff_resn
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  checkstr CARG3
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq ->fff_restv			// String key?
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |  lwz TMP0, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
+  |  checknum CARG3
+  |  cmplwi cr1, TMP0, 0
+  |   stp BASE, L->base			// Add frame since C call can throw.
+  |  crorc 4*cr0+eq, 4*cr0+gt, 4*cr1+eq
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  beq ->fff_fallback
+  |  ffgccheck
+  |  mr CARG1, L
+  |  mr CARG2, BASE
+  |.if DUALNUM
+  |  bl extern lj_str_fromnumber	// (lua_State *L, cTValue *o)
+  |.else
+  |  bl extern lj_str_fromnum		// (lua_State *L, lua_Number *np)
+  |.endif
+  |  // Returns GCstr *.
+  |  li CARG3, LJ_TSTR
+  |  b ->fff_restv
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc next
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |    lwz TAB:CARG2, 4(BASE)
+  |  blt ->fff_fallback
+  |   stwx TISNIL, BASE, NARGS8:RC	// Set missing 2nd arg to nil.
+  |  checktab CARG1
+  |   lwz PC, FRAME_PC(BASE)
+  |  bne ->fff_fallback
+  |   stp BASE, L->base			// Add frame since C call can throw.
+  |  mr CARG1, L
+  |   stp BASE, L->top			// Dummy frame length is ok.
+  |  la CARG3, 8(BASE)
+  |   stw PC, SAVE_PC
+  |  bl extern lj_tab_next	// (lua_State *L, GCtab *t, TValue *key)
+  |  // Returns 0 at end of traversal.
+  |  cmplwi CRET1, 0
+  |   li CARG3, LJ_TNIL
+  |  beq ->fff_restv			// End of traversal: return nil.
+  |  lfd f0, 8(BASE)			// Copy key and value to results.
+  |   la RA, -8(BASE)
+  |  lfd f1, 16(BASE)
+  |  stfd f0, 0(RA)
+  |   li RD, (2+1)*8
+  |  stfd f1, 8(RA)
+  |  b ->fff_res
+  |
+  |.ffunc_1 pairs
+  |  checktab CARG3
+  |   lwz PC, FRAME_PC(BASE)
+  |  bne ->fff_fallback
+#if LJ_52
+  |   lwz TAB:TMP2, TAB:CARG1->metatable
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |   cmplwi TAB:TMP2, 0
+  |  la RA, -8(BASE)
+  |   bne ->fff_fallback
+#else
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |  la RA, -8(BASE)
+#endif
+  |   stw TISNIL, 8(BASE)
+  |  li RD, (3+1)*8
+  |  stfd f0, 0(RA)
+  |  b ->fff_res
+  |
+  |.ffunc ipairs_aux
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 0(BASE)
+  |    lwz TAB:CARG1, 4(BASE)
+  |   lwz CARG4, 8(BASE)
+  |.if DUALNUM
+  |    lwz TMP2, 12(BASE)
+  |.else
+  |    lfd FARG2, 8(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  checktab CARG3
+  |  checknum cr1, CARG4
+  |   lwz PC, FRAME_PC(BASE)
+  |.if DUALNUM
+  |  bne ->fff_fallback
+  |  bne cr1, ->fff_fallback
+  |.else
+  |    lus TMP0, 0x3ff0
+  |    stw ZERO, TMPD_LO
+  |  bne ->fff_fallback
+  |    stw TMP0, TMPD_HI
+  |  bge cr1, ->fff_fallback
+  |    lfd FARG1, TMPD
+  |  toint TMP2, FARG2, f0
+  |.endif
+  |   lwz TMP0, TAB:CARG1->asize
+  |   lwz TMP1, TAB:CARG1->array
+  |.if not DUALNUM
+  |  fadd FARG2, FARG2, FARG1
+  |.endif
+  |  addi TMP2, TMP2, 1
+  |   la RA, -8(BASE)
+  |  cmplw TMP0, TMP2
+  |.if DUALNUM
+  |  stw TISNUM, 0(RA)
+  |   slwi TMP3, TMP2, 3
+  |  stw TMP2, 4(RA)
+  |.else
+  |   slwi TMP3, TMP2, 3
+  |  stfd FARG2, 0(RA)
+  |.endif
+  |  ble >2				// Not in array part?
+  |  lwzx TMP2, TMP1, TMP3
+  |  lfdx f0, TMP1, TMP3
+  |1:
+  |  checknil TMP2
+  |   li RD, (0+1)*8
+  |  beq ->fff_res			// End of iteration, return 0 results.
+  |   li RD, (2+1)*8
+  |  stfd f0, 8(RA)
+  |  b ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  lwz TMP0, TAB:CARG1->hmask
+  |  cmplwi TMP0, 0
+  |   li RD, (0+1)*8
+  |  beq ->fff_res
+  |   mr CARG2, TMP2
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  cmplwi CRET1, 0
+  |   li RD, (0+1)*8
+  |  beq ->fff_res
+  |  lwz TMP2, 0(CRET1)
+  |  lfd f0, 0(CRET1)
+  |  b <1
+  |
+  |.ffunc_1 ipairs
+  |  checktab CARG3
+  |   lwz PC, FRAME_PC(BASE)
+  |  bne ->fff_fallback
+#if LJ_52
+  |   lwz TAB:TMP2, TAB:CARG1->metatable
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |   cmplwi TAB:TMP2, 0
+  |  la RA, -8(BASE)
+  |   bne ->fff_fallback
+#else
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |  la RA, -8(BASE)
+#endif
+  |.if DUALNUM
+  |  stw TISNUM, 8(BASE)
+  |.else
+  |  stw ZERO, 8(BASE)
+  |.endif
+  |   stw ZERO, 12(BASE)
+  |  li RD, (3+1)*8
+  |  stfd f0, 0(RA)
+  |  b ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  cmplwi NARGS8:RC, 8
+  |   lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  blt ->fff_fallback
+  |   mr TMP2, BASE
+  |   la BASE, 8(BASE)
+  |  // Remember active hook before pcall.
+  |  rlwinm TMP3, TMP3, 32-HOOK_ACTIVE_SHIFT, 31, 31
+  |   subi NARGS8:RC, NARGS8:RC, 8
+  |  addi PC, TMP3, 8+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |
+  |.ffunc xpcall
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG4, 8(BASE)
+  |    lfd FARG2, 8(BASE)
+  |    lfd FARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |  lbz TMP1, DISPATCH_GL(hookmask)(DISPATCH)
+  |   mr TMP2, BASE
+  |  checkfunc CARG4; bne ->fff_fallback  // Traceback must be a function.
+  |   la BASE, 16(BASE)
+  |  // Remember active hook before pcall.
+  |  rlwinm TMP1, TMP1, 32-HOOK_ACTIVE_SHIFT, 31, 31
+  |    stfd FARG2, 0(TMP2)		// Swap function and traceback.
+  |  subi NARGS8:RC, NARGS8:RC, 16
+  |    stfd FARG1, 8(TMP2)
+  |  addi PC, TMP1, 16+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  cmpwi CARG3, LJ_TTHREAD; bne ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  lwz L:CARG1, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |  lbz TMP0, L:CARG1->status
+  |   lp TMP1, L:CARG1->cframe
+  |    lp CARG2, L:CARG1->top
+  |  cmplwi cr0, TMP0, LUA_YIELD
+  |    lp TMP2, L:CARG1->base
+  |   cmplwi cr1, TMP1, 0
+  |   lwz TMP0, L:CARG1->maxstack
+  |    cmplw cr7, CARG2, TMP2
+  |   lwz PC, FRAME_PC(BASE)
+  |  crorc 4*cr6+lt, 4*cr0+gt, 4*cr1+eq		// st>LUA_YIELD || cframe!=0
+  |   add TMP2, CARG2, NARGS8:RC
+  |  crandc 4*cr6+gt, 4*cr7+eq, 4*cr0+eq	// base==top && st!=LUA_YIELD
+  |   cmplw cr1, TMP2, TMP0
+  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr6+gt
+  |   stw PC, SAVE_PC
+  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr1+gt		// cond1 || cond2 || stackov
+  |   stp BASE, L->base
+  |  blt cr6, ->fff_fallback
+  |1:
+  |.if resume
+  |  addi BASE, BASE, 8			// Keep resumed thread in stack for GC.
+  |  subi NARGS8:RC, NARGS8:RC, 8
+  |  subi TMP2, TMP2, 8
+  |.endif
+  |  stp TMP2, L:CARG1->top
+  |  li TMP1, 0
+  |  stp BASE, L->top
+  |2:  // Move args to coroutine.
+  |  cmpw TMP1, NARGS8:RC
+  |   lfdx f0, BASE, TMP1
+  |  beq >3
+  |   stfdx f0, CARG2, TMP1
+  |  addi TMP1, TMP1, 8
+  |  b <2
+  |3:
+  |  li CARG3, 0
+  |   mr L:SAVE0, L:CARG1
+  |  li CARG4, 0
+  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  // Returns thread status.
+  |4:
+  |  lp TMP2, L:SAVE0->base
+  |   cmplwi CRET1, LUA_YIELD
+  |  lp TMP3, L:SAVE0->top
+  |    li_vmstate INTERP
+  |  lp BASE, L->base
+  |    st_vmstate
+  |   bgt >8
+  |  sub RD, TMP3, TMP2
+  |   lwz TMP0, L->maxstack
+  |  cmplwi RD, 0
+  |   add TMP1, BASE, RD
+  |  beq >6				// No results?
+  |  cmplw TMP1, TMP0
+  |   li TMP1, 0
+  |  bgt >9				// Need to grow stack?
+  |
+  |  subi TMP3, RD, 8
+  |   stp TMP2, L:SAVE0->top		// Clear coroutine stack.
+  |5:  // Move results from coroutine.
+  |  cmplw TMP1, TMP3
+  |   lfdx f0, TMP2, TMP1
+  |   stfdx f0, BASE, TMP1
+  |    addi TMP1, TMP1, 8
+  |  bne <5
+  |6:
+  |  andix. TMP0, PC, FRAME_TYPE
+  |.if resume
+  |  li TMP1, LJ_TTRUE
+  |   la RA, -8(BASE)
+  |  stw TMP1, -8(BASE)			// Prepend true to results.
+  |  addi RD, RD, 16
+  |.else
+  |  mr RA, BASE
+  |  addi RD, RD, 8
+  |.endif
+  |7:
+  |    stw PC, SAVE_PC
+  |   mr MULTRES, RD
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  andix. TMP0, PC, FRAME_TYPE
+  |  la TMP3, -8(TMP3)
+  |   li TMP1, LJ_TFALSE
+  |  lfd f0, 0(TMP3)
+  |   stp TMP3, L:SAVE0->top		// Remove error from coroutine stack.
+  |    li RD, (2+1)*8
+  |   stw TMP1, -8(BASE)		// Prepend false to results.
+  |    la RA, -8(BASE)
+  |  stfd f0, 0(BASE)			// Copy error message.
+  |  b <7
+  |.else
+  |  mr CARG1, L
+  |  mr CARG2, L:SAVE0
+  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mr CARG1, L
+  |  srwi CARG2, RD, 3
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  li CRET1, 0
+  |  b <4
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  lp TMP0, L->cframe
+  |   add TMP1, BASE, NARGS8:RC
+  |   stp BASE, L->base
+  |  andix. TMP0, TMP0, CFRAME_RESUME
+  |   stp TMP1, L->top
+  |    li CRET1, LUA_YIELD
+  |  beq ->fff_fallback
+  |   stp ZERO, L->cframe
+  |    stb CRET1, L->status
+  |  b ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.ffunc_1 math_abs
+  |  checknum CARG3
+  |.if DUALNUM
+  |  bne >2
+  |  srawi TMP1, CARG1, 31
+  |  xor TMP2, TMP1, CARG1
+  |.if GPR64
+  |  lus TMP0, 0x8000
+  |  sub CARG1, TMP2, TMP1
+  |  cmplw CARG1, TMP0
+  |  beq >1
+  |.else
+  |  sub. CARG1, TMP2, TMP1
+  |  blt >1
+  |.endif
+  |->fff_resi:
+  |  lwz PC, FRAME_PC(BASE)
+  |  la RA, -8(BASE)
+  |  stw TISNUM, -8(BASE)
+  |  stw CRET1, -4(BASE)
+  |  b ->fff_res1
+  |1:
+  |  lus CARG3, 0x41e0	// 2^31.
+  |  li CARG1, 0
+  |  b ->fff_restv
+  |2:
+  |.endif
+  |  bge ->fff_fallback
+  |  rlwinm CARG3, CARG3, 0, 1, 31
+  |  // Fallthrough.
+  |
+  |->fff_restv:
+  |  // CARG3/CARG1 = TValue result.
+  |  lwz PC, FRAME_PC(BASE)
+  |   stw CARG3, -8(BASE)
+  |  la RA, -8(BASE)
+  |   stw CARG1, -4(BASE)
+  |->fff_res1:
+  |  // RA = results, PC = return.
+  |  li RD, (1+1)*8
+  |->fff_res:
+  |  // RA = results, RD = (nresults+1)*8, PC = return.
+  |  andix. TMP0, PC, FRAME_TYPE
+  |   mr MULTRES, RD
+  |  bney ->vm_return
+  |  lwz INS, -4(PC)
+  |  decode_RB8 RB, INS
+  |5:
+  |  cmplw RB, RD			// More results expected?
+  |   decode_RA8 TMP0, INS
+  |  bgt >6
+  |  ins_next1
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |   sub BASE, RA, TMP0
+  |  ins_next2
+  |
+  |6:  // Fill up results with nil.
+  |  subi TMP1, RD, 8
+  |   addi RD, RD, 8
+  |  stwx TISNIL, RA, TMP1
+  |  b <5
+  |
+  |.macro math_extern, func
+  |  .ffunc_n math_ .. func
+  |  blex func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |  blex func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.macro math_round, func
+  |  .ffunc_1 math_ .. func
+  |   checknum CARG3; beqy ->fff_restv
+  |  rlwinm TMP2, CARG3, 12, 21, 31
+  |   bge ->fff_fallback
+  |  addic. TMP2, TMP2, -1023		// exp = exponent(x) - 1023
+  |  cmplwi cr1, TMP2, 31		// 0 <= exp < 31?
+  |   subfic TMP0, TMP2, 31
+  |  blt >3
+  |  slwi TMP1, CARG3, 11
+  |   srwi TMP3, CARG1, 21
+  |  oris TMP1, TMP1, 0x8000
+  |   addi TMP2, TMP2, 1
+  |  or TMP1, TMP1, TMP3
+  |   slwi CARG2, CARG1, 11
+  |  bge cr1, >4
+  |   slw TMP3, TMP1, TMP2
+  |  srw RD, TMP1, TMP0
+  |   or TMP3, TMP3, CARG2
+  |  srawi TMP2, CARG3, 31
+  |.if "func" == "floor"
+  |  and TMP1, TMP3, TMP2
+  |  addic TMP0, TMP1, -1
+  |  subfe TMP1, TMP0, TMP1
+  |  add CARG1, RD, TMP1
+  |  xor CARG1, CARG1, TMP2
+  |  sub CARG1, CARG1, TMP2
+  |  b ->fff_resi
+  |.else
+  |  andc TMP1, TMP3, TMP2
+  |  addic TMP0, TMP1, -1
+  |  subfe TMP1, TMP0, TMP1
+  |  add CARG1, RD, TMP1
+  |  cmpw CARG1, RD
+  |  xor CARG1, CARG1, TMP2
+  |  sub CARG1, CARG1, TMP2
+  |  bge ->fff_resi
+  |  // Overflow to 2^31.
+  |  lus CARG3, 0x41e0			// 2^31.
+  |  li CARG1, 0
+  |  b ->fff_restv
+  |.endif
+  |3:  // |x| < 1
+  |  slwi TMP2, CARG3, 1
+  |   srawi TMP1, CARG3, 31
+  |  or TMP2, CARG1, TMP2		// ztest = (hi+hi) | lo
+  |.if "func" == "floor"
+  |  and TMP1, TMP2, TMP1		// (ztest & sign) == 0 ? 0 : -1
+  |  subfic TMP2, TMP1, 0
+  |  subfe CARG1, CARG1, CARG1
+  |.else
+  |  andc TMP1, TMP2, TMP1		// (ztest & ~sign) == 0 ? 0 : 1
+  |  addic TMP2, TMP1, -1
+  |  subfe CARG1, TMP2, TMP1
+  |.endif
+  |  b ->fff_resi
+  |4:  // exp >= 31. Check for -(2^31).
+  |  xoris TMP1, TMP1, 0x8000
+  |  srawi TMP2, CARG3, 31
+  |.if "func" == "floor"
+  |  or TMP1, TMP1, CARG2
+  |.endif
+  |.if PPE
+  |  orc TMP1, TMP1, TMP2
+  |  cmpwi TMP1, 0
+  |.else
+  |  orc. TMP1, TMP1, TMP2
+  |.endif
+  |  crand 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+  |  lus CARG1, 0x8000			// -(2^31).
+  |  beqy ->fff_resi
+  |5:
+  |  lfd FARG1, 0(BASE)
+  |  blex func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.if DUALNUM
+  |  math_round floor
+  |  math_round ceil
+  |.else
+  |  // NYI: use internal implementation.
+  |  math_extern floor
+  |  math_extern ceil
+  |.endif
+  |
+  |.if SQRT
+  |.ffunc_n math_sqrt
+  |  fsqrt FARG1, FARG1
+  |  b ->fff_resn
+  |.else
+  |  math_extern sqrt
+  |.endif
+  |
+  |.ffunc math_log
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lfd FARG1, 0(BASE)
+  |  bne ->fff_fallback			// Need exactly 1 argument.
+  |  checknum CARG3; bge ->fff_fallback
+  |  blex log
+  |  b ->fff_resn
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |->ff_math_deg:
+  |.ffunc_n math_rad
+  |  lfd FARG2, CFUNC:RB->upvalue[0]
+  |  fmul FARG1, FARG1, FARG2
+  |  b ->fff_resn
+  |
+  |.if DUALNUM
+  |.ffunc math_ldexp
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 0(BASE)
+  |    lfd FARG1, 0(BASE)
+  |   lwz CARG4, 8(BASE)
+  |.if GPR64
+  |    lwz CARG2, 12(BASE)
+  |.else
+  |    lwz CARG1, 12(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  checknum CARG3; bge ->fff_fallback
+  |  checknum CARG4; bne ->fff_fallback
+  |.else
+  |.ffunc_nn math_ldexp
+  |.if GPR64
+  |  toint CARG2, FARG2
+  |.else
+  |  toint CARG1, FARG2
+  |.endif
+  |.endif
+  |  blex ldexp
+  |  b ->fff_resn
+  |
+  |.ffunc_n math_frexp
+  |.if GPR64
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |.else
+  |  la CARG1, DISPATCH_GL(tmptv)(DISPATCH)
+  |.endif
+  |   lwz PC, FRAME_PC(BASE)
+  |  blex frexp
+  |   lwz TMP1, DISPATCH_GL(tmptv)(DISPATCH)
+  |   la RA, -8(BASE)
+  |.if not DUALNUM
+  |   tonum_i FARG2, TMP1
+  |.endif
+  |  stfd FARG1, 0(RA)
+  |  li RD, (2+1)*8
+  |.if DUALNUM
+  |   stw TISNUM, 8(RA)
+  |   stw TMP1, 12(RA)
+  |.else
+  |   stfd FARG2, 8(RA)
+  |.endif
+  |  b ->fff_res
+  |
+  |.ffunc_n math_modf
+  |.if GPR64
+  |  la CARG2, -8(BASE)
+  |.else
+  |  la CARG1, -8(BASE)
+  |.endif
+  |   lwz PC, FRAME_PC(BASE)
+  |  blex modf
+  |   la RA, -8(BASE)
+  |  stfd FARG1, 0(BASE)
+  |  li RD, (2+1)*8
+  |  b ->fff_res
+  |
+  |.macro math_minmax, name, ismax
+  |.if DUALNUM
+  |  .ffunc_1 name
+  |  checknum CARG3
+  |   addi TMP1, BASE, 8
+  |   add TMP2, BASE, NARGS8:RC
+  |  bne >4
+  |1:  // Handle integers.
+  |  lwz CARG4, 0(TMP1)
+  |   cmplw cr1, TMP1, TMP2
+  |  lwz CARG2, 4(TMP1)
+  |   bge cr1, ->fff_resi
+  |  checknum CARG4
+  |   xoris TMP0, CARG1, 0x8000
+  |   xoris TMP3, CARG2, 0x8000
+  |  bne >3
+  |  subfc TMP3, TMP3, TMP0
+  |  subfe TMP0, TMP0, TMP0
+  |.if ismax
+  |  andc TMP3, TMP3, TMP0
+  |.else
+  |  and TMP3, TMP3, TMP0
+  |.endif
+  |  add CARG1, TMP3, CARG2
+  |.if GPR64
+  |  rldicl CARG1, CARG1, 0, 32
+  |.endif
+  |   addi TMP1, TMP1, 8
+  |  b <1
+  |3:
+  |  bge ->fff_fallback
+  |  // Convert intermediate result to number and continue below.
+  |  tonum_i FARG1, CARG1
+  |  lfd FARG2, 0(TMP1)
+  |  b >6
+  |4:
+  |   lfd FARG1, 0(BASE)
+  |  bge ->fff_fallback
+  |5:  // Handle numbers.
+  |  lwz CARG4, 0(TMP1)
+  |   cmplw cr1, TMP1, TMP2
+  |  lfd FARG2, 0(TMP1)
+  |   bge cr1, ->fff_resn
+  |  checknum CARG4; bge >7
+  |6:
+  |  fsub f0, FARG1, FARG2
+  |   addi TMP1, TMP1, 8
+  |.if ismax
+  |  fsel FARG1, f0, FARG1, FARG2
+  |.else
+  |  fsel FARG1, f0, FARG2, FARG1
+  |.endif
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |   lwz CARG2, 4(TMP1)
+  |  bne ->fff_fallback
+  |  tonum_i FARG2, CARG2
+  |  b <6
+  |.else
+  |  .ffunc_n name
+  |  li TMP1, 8
+  |1:
+  |   lwzx CARG2, BASE, TMP1
+  |   lfdx FARG2, BASE, TMP1
+  |  cmplw cr1, TMP1, NARGS8:RC
+  |   checknum CARG2
+  |  bge cr1, ->fff_resn
+  |   bge ->fff_fallback
+  |  fsub f0, FARG1, FARG2
+  |   addi TMP1, TMP1, 8
+  |.if ismax
+  |  fsel FARG1, f0, FARG1, FARG2
+  |.else
+  |  fsel FARG1, f0, FARG2, FARG1
+  |.endif
+  |  b <1
+  |.endif
+  |.endmacro
+  |
+  |  math_minmax math_min, 0
+  |  math_minmax math_max, 1
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc_1 string_len
+  |  checkstr CARG3; bne ->fff_fallback
+  |  lwz CRET1, STR:CARG1->len
+  |  b ->fff_resi
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |  bne ->fff_fallback			// Need exactly 1 argument.
+  |   checkstr CARG3
+  |   bne ->fff_fallback
+  |  lwz TMP0, STR:CARG1->len
+  |.if DUALNUM
+  |   lbz CARG1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |   li RD, (0+1)*8
+  |   lwz PC, FRAME_PC(BASE)
+  |  cmplwi TMP0, 0
+  |   la RA, -8(BASE)
+  |  beqy ->fff_res
+  |  b ->fff_resi
+  |.else
+  |   lbz TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |  addic TMP3, TMP0, -1		// RD = ((str->len != 0)+1)*8
+  |  subfe RD, TMP3, TMP0
+  |   stw TMP1, TONUM_LO		// Inlined tonum_u f0, TMP1.
+  |  addi RD, RD, 1
+  |   lfd f0, TONUM_D
+  |  la RA, -8(BASE)
+  |  lwz PC, FRAME_PC(BASE)
+  |   fsub f0, f0, TOBIT
+  |  slwi RD, RD, 3
+  |   stfd f0, 0(RA)
+  |  b ->fff_res
+  |.endif
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |.if DUALNUM
+  |    lwz TMP0, 4(BASE)
+  |  bne ->fff_fallback			// Exactly 1 argument.
+  |  checknum CARG3; bne ->fff_fallback
+  |   la CARG2, 7(BASE)
+  |.else
+  |    lfd FARG1, 0(BASE)
+  |  bne ->fff_fallback			// Exactly 1 argument.
+  |  checknum CARG3; bge ->fff_fallback
+  |  toint TMP0, FARG1
+  |   la CARG2, TMPD_BLO
+  |.endif
+  |   li CARG3, 1
+  |  cmplwi TMP0, 255; bgt ->fff_fallback
+  |->fff_newstr:
+  |  mr CARG1, L
+  |  stp BASE, L->base
+  |  stw PC, SAVE_PC
+  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |  // Returns GCstr *.
+  |  lp BASE, L->base
+  |  li CARG3, LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 16(BASE)
+  |.if not DUALNUM
+  |    lfd f0, 16(BASE)
+  |.endif
+  |   lwz TMP0, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |  blt ->fff_fallback
+  |   lwz CARG2, 8(BASE)
+  |.if DUALNUM
+  |    lwz TMP1, 12(BASE)
+  |.else
+  |    lfd f1, 8(BASE)
+  |.endif
+  |   li TMP2, -1
+  |  beq >1
+  |.if DUALNUM
+  |  checknum CARG3
+  |   lwz TMP2, 20(BASE)
+  |  bne ->fff_fallback
+  |1:
+  |  checknum CARG2; bne ->fff_fallback
+  |.else
+  |  checknum CARG3; bge ->fff_fallback
+  |  toint TMP2, f0
+  |1:
+  |  checknum CARG2; bge ->fff_fallback
+  |.endif
+  |  checkstr TMP0; bne ->fff_fallback
+  |.if not DUALNUM
+  |   toint TMP1, f1
+  |.endif
+  |   lwz TMP0, STR:CARG1->len
+  |  cmplw TMP0, TMP2			// len < end? (unsigned compare)
+  |   addi TMP3, TMP2, 1
+  |  blt >5
+  |2:
+  |  cmpwi TMP1, 0			// start <= 0?
+  |   add TMP3, TMP1, TMP0
+  |  ble >7
+  |3:
+  |  sub CARG3, TMP2, TMP1
+  |    addi CARG2, STR:CARG1, #STR-1
+  |  srawi TMP0, CARG3, 31
+  |   addi CARG3, CARG3, 1
+  |    add CARG2, CARG2, TMP1
+  |  andc CARG3, CARG3, TMP0
+  |.if GPR64
+  |  rldicl CARG2, CARG2, 0, 32
+  |  rldicl CARG3, CARG3, 0, 32
+  |.endif
+  |  b ->fff_newstr
+  |
+  |5:  // Negative end or overflow.
+  |  cmpw TMP0, TMP2			// len >= end? (signed compare)
+  |   add TMP2, TMP0, TMP3		// Negative end: end = end+len+1.
+  |  bge <2
+  |   mr TMP2, TMP0			// Overflow: end = len.
+  |  b <2
+  |
+  |7:  // Negative start or underflow.
+  |  .gpr64 extsw TMP1, TMP1
+  |  addic CARG3, TMP1, -1
+  |  subfe CARG3, CARG3, CARG3
+  |   srawi CARG2, TMP3, 31		// Note: modifies carry.
+  |  andc TMP3, TMP3, CARG3
+  |   andc TMP1, TMP3, CARG2
+  |  addi TMP1, TMP1, 1			// start = 1 + (start ? start+len : 0)
+  |  b <3
+  |
+  |.ffunc string_rep			// Only handle the 1-char case inline.
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 16
+  |   lwz TMP0, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |   lwz CARG4, 8(BASE)
+  |.if DUALNUM
+  |    lwz CARG3, 12(BASE)
+  |.else
+  |    lfd FARG2, 8(BASE)
+  |.endif
+  |  bne ->fff_fallback			// Exactly 2 arguments.
+  |  checkstr TMP0; bne ->fff_fallback
+  |.if DUALNUM
+  |  checknum CARG4; bne ->fff_fallback
+  |.else
+  |  checknum CARG4; bge ->fff_fallback
+  |    toint CARG3, FARG2
+  |.endif
+  |   lwz TMP0, STR:CARG1->len
+  |  cmpwi CARG3, 0
+  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  ble >2				// Count <= 0? (or non-int)
+  |   cmplwi TMP0, 1
+  |  subi TMP2, CARG3, 1
+  |   blt >2				// Zero length string?
+  |  cmplw cr1, TMP1, CARG3
+  |   bne ->fff_fallback		// Fallback for > 1-char strings.
+  |   lbz TMP0, STR:CARG1[1]
+  |   lp CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  blt cr1, ->fff_fallback
+  |1:  // Fill buffer with char. Yes, this is suboptimal code (do you care?).
+  |  cmplwi TMP2, 0
+  |   stbx TMP0, CARG2, TMP2
+  |   subi TMP2, TMP2, 1
+  |  bne <1
+  |  b ->fff_newstr
+  |2:  // Return empty string.
+  |  la STR:CARG1, DISPATCH_GL(strempty)(DISPATCH)
+  |  li CARG3, LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.ffunc string_reverse
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |  blt ->fff_fallback
+  |  checkstr CARG3
+  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  bne ->fff_fallback
+  |  lwz CARG3, STR:CARG1->len
+  |   la CARG1, #STR(STR:CARG1)
+  |   lp CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |   li TMP2, 0
+  |  cmplw TMP1, CARG3
+  |   subi TMP3, CARG3, 1
+  |  blt ->fff_fallback
+  |1:  // Reverse string copy.
+  |  cmpwi TMP3, 0
+  |   lbzx TMP1, CARG1, TMP2
+  |  blty ->fff_newstr
+  |   stbx TMP1, CARG2, TMP3
+  |  subi TMP3, TMP3, 1
+  |  addi TMP2, TMP2, 1
+  |  b <1
+  |
+  |.macro ffstring_case, name, lo
+  |  .ffunc name
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |  blt ->fff_fallback
+  |  checkstr CARG3
+  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  bne ->fff_fallback
+  |  lwz CARG3, STR:CARG1->len
+  |   la CARG1, #STR(STR:CARG1)
+  |   lp CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  cmplw TMP1, CARG3
+  |   li TMP2, 0
+  |  blt ->fff_fallback
+  |1:  // ASCII case conversion.
+  |  cmplw TMP2, CARG3
+  |   lbzx TMP1, CARG1, TMP2
+  |  bgey ->fff_newstr
+  |   subi TMP0, TMP1, lo
+  |    xori TMP3, TMP1, 0x20
+  |   addic TMP0, TMP0, -26
+  |   subfe TMP3, TMP3, TMP3
+  |   rlwinm TMP3, TMP3, 0, 26, 26	// x &= 0x20.
+  |   xor TMP1, TMP1, TMP3
+  |   stbx TMP1, CARG2, TMP2
+  |  addi TMP2, TMP2, 1
+  |  b <1
+  |.endmacro
+  |
+  |ffstring_case string_lower, 65
+  |ffstring_case string_upper, 97
+  |
+  |//-- Table library ------------------------------------------------------
+  |
+  |.ffunc_1 table_getn
+  |  checktab CARG3; bne ->fff_fallback
+  |  bl extern lj_tab_len		// (GCtab *t)
+  |  // Returns uint32_t (but less than 2^31).
+  |  b ->fff_resi
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.macro .ffunc_bit, name
+  |.if DUALNUM
+  |  .ffunc_1 bit_..name
+  |  checknum CARG3; bnel ->fff_tobit_fb
+  |.else
+  |  .ffunc_n bit_..name
+  |  fadd FARG1, FARG1, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG1, TMPD_LO
+  |.endif
+  |.endmacro
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  addi TMP1, BASE, 8
+  |  add TMP2, BASE, NARGS8:RC
+  |1:
+  |  lwz CARG4, 0(TMP1)
+  |   cmplw cr1, TMP1, TMP2
+  |.if DUALNUM
+  |  lwz CARG2, 4(TMP1)
+  |.else
+  |  lfd FARG1, 0(TMP1)
+  |.endif
+  |   bgey cr1, ->fff_resi
+  |  checknum CARG4
+  |.if DUALNUM
+  |  bnel ->fff_bitop_fb
+  |.else
+  |  fadd FARG1, FARG1, TOBIT
+  |  bge ->fff_fallback
+  |  stfd FARG1, TMPD
+  |  lwz CARG2, TMPD_LO
+  |.endif
+  |  ins CARG1, CARG1, CARG2
+  |   addi TMP1, TMP1, 8
+  |  b <1
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, or
+  |.ffunc_bit_op bxor, xor
+  |
+  |.ffunc_bit bswap
+  |  rotlwi TMP0, CARG1, 8
+  |  rlwimi TMP0, CARG1, 24, 0, 7
+  |  rlwimi TMP0, CARG1, 24, 16, 23
+  |  mr CRET1, TMP0
+  |  b ->fff_resi
+  |
+  |.ffunc_bit bnot
+  |  not CRET1, CARG1
+  |  b ->fff_resi
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |.if DUALNUM
+  |  .ffunc_2 bit_..name
+  |  checknum CARG3; bnel ->fff_tobit_fb
+  |  // Note: no inline conversion from number for 2nd argument!
+  |  checknum CARG4; bne ->fff_fallback
+  |.else
+  |  .ffunc_nn bit_..name
+  |  fadd FARG1, FARG1, TOBIT
+  |  fadd FARG2, FARG2, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG1, TMPD_LO
+  |  stfd FARG2, TMPD
+  |  lwz CARG2, TMPD_LO
+  |.endif
+  |.if shmod == 1
+  |  rlwinm CARG2, CARG2, 0, 27, 31
+  |.elif shmod == 2
+  |  neg CARG2, CARG2
+  |.endif
+  |  ins CRET1, CARG1, CARG2
+  |  b ->fff_resi
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, slw, 1
+  |.ffunc_bit_sh rshift, srw, 1
+  |.ffunc_bit_sh arshift, sraw, 1
+  |.ffunc_bit_sh rol, rotlw, 0
+  |.ffunc_bit_sh ror, rotlw, 2
+  |
+  |.ffunc_bit tobit
+  |.if DUALNUM
+  |  b ->fff_resi
+  |.else
+  |->fff_resi:
+  |  tonum_i FARG1, CRET1
+  |.endif
+  |->fff_resn:
+  |  lwz PC, FRAME_PC(BASE)
+  |  la RA, -8(BASE)
+  |  stfd FARG1, -8(BASE)
+  |  b ->fff_res1
+  |
+  |// Fallback FP number to bit conversion.
+  |->fff_tobit_fb:
+  |.if DUALNUM
+  |  lfd FARG1, 0(BASE)
+  |  bgt ->fff_fallback
+  |  fadd FARG1, FARG1, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG1, TMPD_LO
+  |  blr
+  |.endif
+  |->fff_bitop_fb:
+  |.if DUALNUM
+  |  lfd FARG1, 0(TMP1)
+  |  bgt ->fff_fallback
+  |  fadd FARG1, FARG1, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG2, TMPD_LO
+  |  blr
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RB = CFUNC, RC = nargs*8
+  |  lp TMP3, CFUNC:RB->f
+  |    add TMP1, BASE, NARGS8:RC
+  |   lwz PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
+  |    addi TMP0, TMP1, 8*LUA_MINSTACK
+  |     lwz TMP2, L->maxstack
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  .toc lp TMP3, 0(TMP3)
+  |  cmplw TMP0, TMP2
+  |     stp BASE, L->base
+  |    stp TMP1, L->top
+  |   mr CARG1, L
+  |  bgt >5				// Need to grow stack.
+  |  mtctr TMP3
+  |  bctrl				// (lua_State *L)
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  lp BASE, L->base
+  |  cmpwi CRET1, 0
+  |   slwi RD, CRET1, 3
+  |   la RA, -8(BASE)
+  |  bgt ->fff_res			// Returned nresults+1?
+  |1:  // Returned 0 or -1: retry fast path.
+  |  lp TMP0, L->top
+  |   lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  sub NARGS8:RC, TMP0, BASE
+  |  bne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  andix. TMP0, PC, FRAME_TYPE
+  |   rlwinm TMP1, PC, 0, 0, 28
+  |  bne >3
+  |  lwz INS, -4(PC)
+  |  decode_RA8 TMP1, INS
+  |  addi TMP1, TMP1, 8
+  |3:
+  |  sub TMP2, BASE, TMP1
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  li CARG2, LUA_MINSTACK
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  lp BASE, L->base
+  |  cmpw TMP0, TMP0			// Set 4*cr0+eq to force retry.
+  |  b <1
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  mflr SAVE0
+  |   stp BASE, L->base
+  |  add TMP0, BASE, NARGS8:RC
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  stp TMP0, L->top
+  |  mr CARG1, L
+  |  bl extern lj_gc_step		// (lua_State *L)
+  |   lp BASE, L->base
+  |  mtlr SAVE0
+  |    lp TMP0, L->top
+  |   sub NARGS8:RC, TMP0, BASE
+  |   lwz CFUNC:RB, FRAME_FUNC(BASE)
+  |  blr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_VMEVENT	// No recording while in vmevent.
+  |  bne >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |   lwz TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_ACTIVE
+  |  bne >1
+  |   subi TMP2, TMP2, 1
+  |  andi. TMP0, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqy >1
+  |   stw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  b >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
+  |  beq >1
+  |5:  // Re-dispatch to static ins.
+  |  addi TMP1, TMP1, GG_DISP2STATIC	// Assumes decode_OPP TMP1, INS.
+  |  lpx TMP0, DISPATCH, TMP1
+  |  mtctr TMP0
+  |  bctr
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  lwz TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
+  |   rlwinm TMP0, TMP3, 31-LUA_HOOKLINE, 31, 0
+  |  bne <5
+  |
+  |   cmpwi cr1, TMP0, 0
+  |  addic. TMP2, TMP2, -1
+  |   beq cr1, <5
+  |  stw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  beq >1
+  |   bge cr1, <5
+  |1:
+  |  mr CARG1, L
+  |   stw MULTRES, SAVE_MULTRES
+  |  mr CARG2, PC
+  |   stp BASE, L->base
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
+  |3:
+  |  lp BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  lwz INS, -4(PC)
+  |  decode_OPP TMP1, INS
+  |   decode_RB8 RB, INS
+  |  addi TMP1, TMP1, GG_DISP2STATIC
+  |   decode_RD8 RD, INS
+  |  lpx TMP0, DISPATCH, TMP1
+  |   decode_RA8 RA, INS
+  |   decode_RC8 RC, INS
+  |  mtctr TMP0
+  |  bctr
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  addi PC, PC, 4
+  |  lwz MULTRES, -20(RB)		// Restore MULTRES for *M ins.
+  |  b <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+  |   addi CARG1, DISPATCH, GG_DISP2J
+  |   stw PC, SAVE_PC
+  |  lwz TMP1, LFUNC:TMP1->pc
+  |   mr CARG2, PC
+  |   stw L, DISPATCH_J(L)(DISPATCH)
+  |  lbz TMP1, PC2PROTO(framesize)(TMP1)
+  |   stp BASE, L->base
+  |  slwi TMP1, TMP1, 3
+  |  add TMP1, BASE, TMP1
+  |  stp TMP1, L->top
+  |  bl extern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |  b <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mr CARG2, PC
+  |.if JIT
+  |  b >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  ori CARG2, PC, 1
+  |1:
+  |.endif
+  |  add TMP0, BASE, RC
+  |   stw PC, SAVE_PC
+  |  mr CARG1, L
+  |   stp BASE, L->base
+  |  sub RA, RA, BASE
+  |   stp TMP0, L->top
+  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
+  |  // Returns ASMFunction.
+  |  lp BASE, L->base
+  |   lp TMP0, L->top
+  |   stw ZERO, SAVE_PC			// Invalidate for subsequent line hook.
+  |  sub NARGS8:RC, TMP0, BASE
+  |  add RA, BASE, RA
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  lwz INS, -4(PC)
+  |  mtctr CRET1
+  |  bctr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro savex_, a, b, c, d
+  |  stfd f..a, 16+a*8(sp)
+  |  stfd f..b, 16+b*8(sp)
+  |  stfd f..c, 16+c*8(sp)
+  |  stfd f..d, 16+d*8(sp)
+  |.endmacro
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  addi sp, sp, -(16+32*8+32*4)
+  |  stmw r2, 16+32*8+2*4(sp)
+  |    addi DISPATCH, JGL, -GG_DISP2G-32768
+  |    li CARG2, ~LJ_VMST_EXIT
+  |   lwz CARG1, 16+32*8+32*4(sp)	// Get stack chain.
+  |    stw CARG2, DISPATCH_GL(vmstate)(DISPATCH)
+  |  savex_ 0,1,2,3
+  |   stw CARG1, 0(sp)			// Store extended stack chain.
+  |   mcrxr cr0				// Clear SO flag.
+  |  savex_ 4,5,6,7
+  |   addi CARG2, sp, 16+32*8+32*4	// Recompute original value of sp.
+  |  savex_ 8,9,10,11
+  |   stw CARG2, 16+32*8+1*4(sp)	// Store sp in RID_SP.
+  |  savex_ 12,13,14,15
+  |   mflr CARG3
+  |   li TMP1, 0
+  |  savex_ 16,17,18,19
+  |   stw TMP1, 16+32*8+0*4(sp)		// Clear RID_TMP.
+  |  savex_ 20,21,22,23
+  |   lhz CARG4, 2(CARG3)		// Load trace number.
+  |  savex_ 24,25,26,27
+  |  lwz L, DISPATCH_GL(jit_L)(DISPATCH)
+  |  savex_ 28,29,30,31
+  |   sub CARG3, TMP0, CARG3		// Compute exit number.
+  |  lp BASE, DISPATCH_GL(jit_base)(DISPATCH)
+  |   srwi CARG3, CARG3, 2
+  |  stw L, DISPATCH_J(L)(DISPATCH)
+  |   subi CARG3, CARG3, 2
+  |  stw TMP1, DISPATCH_GL(jit_L)(DISPATCH)
+  |   stw CARG4, DISPATCH_J(parent)(DISPATCH)
+  |  stp BASE, L->base
+  |  addi CARG1, DISPATCH, GG_DISP2J
+  |   stw CARG3, DISPATCH_J(exitno)(DISPATCH)
+  |  addi CARG2, sp, 16
+  |  bl extern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  lp TMP1, L->cframe
+  |  lwz TMP2, 0(sp)
+  |   lp BASE, L->base
+  |.if GPR64
+  |  rldicr sp, TMP1, 0, 61
+  |.else
+  |  rlwinm sp, TMP1, 0, 0, 29
+  |.endif
+  |   lwz PC, SAVE_PC			// Get SAVE_PC.
+  |  stw TMP2, 0(sp)
+  |  stw L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |  b >1
+  |.endif
+  |->vm_exit_interp:
+  |.if JIT
+  |  // CARG1 = MULTRES or negated error code, BASE, PC and JGL set.
+  |  lwz L, SAVE_L
+  |  addi DISPATCH, JGL, -GG_DISP2G-32768
+  |1:
+  |  cmpwi CARG1, 0
+  |  blt >3				// Check for error from exit.
+  |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+  |   slwi MULTRES, CARG1, 3
+  |    li TMP2, 0
+  |   stw MULTRES, SAVE_MULTRES
+  |  lwz TMP1, LFUNC:TMP1->pc
+  |    stw TMP2, DISPATCH_GL(jit_L)(DISPATCH)
+  |  lwz KBASE, PC2PROTO(k)(TMP1)
+  |  // Setup type comparison constants.
+  |  li TISNUM, LJ_TISNUM
+  |  lus TMP3, 0x59c0			// TOBIT = 2^52 + 2^51 (float).
+  |  stw TMP3, TMPD
+  |  li ZERO, 0
+  |  ori TMP3, TMP3, 0x0004		// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |  lfs TOBIT, TMPD
+  |  stw TMP3, TMPD
+  |  lus TMP0, 0x4338			// Hiword of 2^52 + 2^51 (double)
+  |    li TISNIL, LJ_TNIL
+  |  stw TMP0, TONUM_HI
+  |  lfs TONUM, TMPD
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  lwz INS, 0(PC)
+  |   addi PC, PC, 4
+  |    // Assumes TISNIL == ~LJ_VMST_INTERP == -1.
+  |    stw TISNIL, DISPATCH_GL(vmstate)(DISPATCH)
+  |  decode_OPP TMP1, INS
+  |   decode_RA8 RA, INS
+  |  lpx TMP0, DISPATCH, TMP1
+  |  mtctr TMP0
+  |  cmplwi TMP1, BC_FUNCF*4		// Function header?
+  |  bge >2
+  |   decode_RB8 RB, INS
+  |   decode_RD8 RD, INS
+  |   decode_RC8 RC, INS
+  |  bctr
+  |2:
+  |   subi RC, MULTRES, 8
+  |   add RA, RA, BASE
+  |  bctr
+  |
+  |3:  // Rethrow error from the right C frame.
+  |  neg CARG2, CARG1
+  |  mr CARG1, L
+  |  bl extern lj_err_throw		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// NYI: Use internal implementations of floor, ceil, trunc.
+  |
+  |->vm_modi:
+  |  divwo. TMP0, CARG1, CARG2
+  |  bso >1
+  |.if GPR64
+  |   xor CARG3, CARG1, CARG2
+  |   cmpwi CARG3, 0
+  |.else
+  |   xor. CARG3, CARG1, CARG2
+  |.endif
+  |  mullw TMP0, TMP0, CARG2
+  |  sub CARG1, CARG1, TMP0
+  |   bgelr
+  |  cmpwi CARG1, 0; beqlr
+  |  add CARG1, CARG1, CARG2
+  |  blr
+  |1:
+  |  cmpwi CARG2, 0
+  |   li CARG1, 0
+  |  beqlr
+  |  mcrxr cr0			// Clear SO for -2147483648 % -1 and return 0.
+  |  blr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// void lj_vm_cachesync(void *start, void *end)
+  |// Flush D-Cache and invalidate I-Cache. Assumes 32 byte cache line size.
+  |// This is a good lower bound, except for very ancient PPC models.
+  |->vm_cachesync:
+  |.if JIT or FFI
+  |  // Compute start of first cache line and number of cache lines.
+  |  rlwinm CARG1, CARG1, 0, 0, 26
+  |  sub CARG2, CARG2, CARG1
+  |  addi CARG2, CARG2, 31
+  |  rlwinm. CARG2, CARG2, 27, 5, 31
+  |  beqlr
+  |  mtctr CARG2
+  |  mr CARG3, CARG1
+  |1:  // Flush D-Cache.
+  |  dcbst r0, CARG1
+  |  addi CARG1, CARG1, 32
+  |  bdnz <1
+  |  sync
+  |  mtctr CARG2
+  |1:  // Invalidate I-Cache.
+  |  icbi r0, CARG3
+  |  addi CARG3, CARG3, 32
+  |  bdnz <1
+  |  isync
+  |  blr
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in r11, g in r12.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs
+  |  lwz CTSTATE, GL:r12->ctype_state
+  |   addi DISPATCH, r12, GG_G2DISP
+  |  stw r11, CTSTATE->cb.slot
+  |  stw r3, CTSTATE->cb.gpr[0]
+  |   stfd f1, CTSTATE->cb.fpr[0]
+  |  stw r4, CTSTATE->cb.gpr[1]
+  |   stfd f2, CTSTATE->cb.fpr[1]
+  |  stw r5, CTSTATE->cb.gpr[2]
+  |   stfd f3, CTSTATE->cb.fpr[2]
+  |  stw r6, CTSTATE->cb.gpr[3]
+  |   stfd f4, CTSTATE->cb.fpr[3]
+  |  stw r7, CTSTATE->cb.gpr[4]
+  |   stfd f5, CTSTATE->cb.fpr[4]
+  |  stw r8, CTSTATE->cb.gpr[5]
+  |   stfd f6, CTSTATE->cb.fpr[5]
+  |  stw r9, CTSTATE->cb.gpr[6]
+  |   stfd f7, CTSTATE->cb.fpr[6]
+  |  stw r10, CTSTATE->cb.gpr[7]
+  |   stfd f8, CTSTATE->cb.fpr[7]
+  |  addi TMP0, sp, CFRAME_SPACE+8
+  |  stw TMP0, CTSTATE->cb.stack
+  |   mr CARG1, CTSTATE
+  |  stw CTSTATE, SAVE_PC		// Any value outside of bytecode is ok.
+  |   mr CARG2, sp
+  |  bl extern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |  // Returns lua_State *.
+  |  lp BASE, L:CRET1->base
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |  lp RC, L:CRET1->top
+  |     lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |     li ZERO, 0
+  |   mr L, CRET1
+  |     stw TMP3, TMPD
+  |     lus TMP0, 0x4338		// Hiword of 2^52 + 2^51 (double)
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |     ori TMP3, TMP3, 0x0004		// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     stw TMP0, TONUM_HI
+  |     li TISNIL, LJ_TNIL
+  |    li_vmstate INTERP
+  |     lfs TOBIT, TMPD
+  |     stw TMP3, TMPD
+  |  sub RC, RC, BASE
+  |    st_vmstate
+  |     lfs TONUM, TMPD
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  lwz CTSTATE, DISPATCH_GL(ctype_state)(DISPATCH)
+  |   stp BASE, L->base
+  |   stp RB, L->top
+  |  stp L, CTSTATE->L
+  |  mr CARG1, CTSTATE
+  |  mr CARG2, RA
+  |  bl extern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |  lwz CRET1, CTSTATE->cb.gpr[0]
+  |  lfd FARG1, CTSTATE->cb.fpr[0]
+  |  lwz CRET2, CTSTATE->cb.gpr[1]
+  |  b ->vm_leave_unw
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, CARG1
+  |  lwz TMP1, CCSTATE->spadj
+  |    mflr TMP0
+  |   lbz CARG2, CCSTATE->nsp
+  |   lbz CARG3, CCSTATE->nfpr
+  |  neg TMP1, TMP1
+  |    stw TMP0, 4(sp)
+  |   cmpwi cr1, CARG3, 0
+  |  mr TMP2, sp
+  |   addic. CARG2, CARG2, -1
+  |  stwux sp, sp, TMP1
+  |   crnot 4*cr1+eq, 4*cr1+eq		// For vararg calls.
+  |  stw r14, -4(TMP2)
+  |  stw CCSTATE, -8(TMP2)
+  |  mr r14, TMP2
+  |  la TMP1, CCSTATE->stack
+  |   slwi CARG2, CARG2, 2
+  |   blty >2
+  |  la TMP2, 8(sp)
+  |1:
+  |  lwzx TMP0, TMP1, CARG2
+  |  stwx TMP0, TMP2, CARG2
+  |   addic. CARG2, CARG2, -4
+  |  bge <1
+  |2:
+  |  bney cr1, >3
+  |  lfd f1, CCSTATE->fpr[0]
+  |  lfd f2, CCSTATE->fpr[1]
+  |  lfd f3, CCSTATE->fpr[2]
+  |  lfd f4, CCSTATE->fpr[3]
+  |  lfd f5, CCSTATE->fpr[4]
+  |  lfd f6, CCSTATE->fpr[5]
+  |  lfd f7, CCSTATE->fpr[6]
+  |  lfd f8, CCSTATE->fpr[7]
+  |3:
+  |   lp TMP0, CCSTATE->func
+  |  lwz CARG2, CCSTATE->gpr[1]
+  |  lwz CARG3, CCSTATE->gpr[2]
+  |  lwz CARG4, CCSTATE->gpr[3]
+  |  lwz CARG5, CCSTATE->gpr[4]
+  |   mtctr TMP0
+  |  lwz r8, CCSTATE->gpr[5]
+  |  lwz r9, CCSTATE->gpr[6]
+  |  lwz r10, CCSTATE->gpr[7]
+  |  lwz CARG1, CCSTATE->gpr[0]		// Do this last, since CCSTATE is CARG1.
+  |   bctrl
+  |  lwz CCSTATE:TMP1, -8(r14)
+  |  lwz TMP2, -4(r14)
+  |   lwz TMP0, 4(r14)
+  |  stw CARG1, CCSTATE:TMP1->gpr[0]
+  |  stfd FARG1, CCSTATE:TMP1->fpr[0]
+  |  stw CARG2, CCSTATE:TMP1->gpr[1]
+  |   mtlr TMP0
+  |  stw CARG3, CCSTATE:TMP1->gpr[2]
+  |   mr sp, r14
+  |  stw CARG4, CCSTATE:TMP1->gpr[3]
+  |   mr r14, TMP2
+  |  blr
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |.if DUALNUM
+    |  lwzux TMP0, RA, BASE
+    |    addi PC, PC, 4
+    |   lwz CARG2, 4(RA)
+    |  lwzux TMP1, RD, BASE
+    |    lwz TMP2, -4(PC)
+    |  checknum cr0, TMP0
+    |   lwz CARG3, 4(RD)
+    |    decode_RD4 TMP2, TMP2
+    |  checknum cr1, TMP1
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  bne cr0, >7
+    |  bne cr1, >8
+    |   cmpw CARG2, CARG3
+    if (op == BC_ISLT) {
+      |  bge >2
+    } else if (op == BC_ISGE) {
+      |  blt >2
+    } else if (op == BC_ISLE) {
+      |  bgt >2
+    } else {
+      |  ble >2
+    }
+    |1:
+    |  add PC, PC, TMP2
+    |2:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  bgt cr0, ->vmeta_comp
+    |  // RA is a number.
+    |   lfd f0, 0(RA)
+    |  bgt cr1, ->vmeta_comp
+    |  blt cr1, >4
+    |  // RA is a number, RD is an integer.
+    |  tonum_i f1, CARG3
+    |  b >5
+    |
+    |8: // RA is an integer, RD is not an integer.
+    |  bgt cr1, ->vmeta_comp
+    |  // RA is an integer, RD is a number.
+    |  tonum_i f0, CARG2
+    |4:
+    |  lfd f1, 0(RD)
+    |5:
+    |  fcmpu cr0, f0, f1
+    if (op == BC_ISLT) {
+      |  bge <2
+    } else if (op == BC_ISGE) {
+      |  blt <2
+    } else if (op == BC_ISLE) {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  bge <2
+    } else {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  blt <2
+    }
+    |  b <1
+    |.else
+    |  lwzx TMP0, BASE, RA
+    |    addi PC, PC, 4
+    |   lfdx f0, BASE, RA
+    |  lwzx TMP1, BASE, RD
+    |  checknum cr0, TMP0
+    |    lwz TMP2, -4(PC)
+    |   lfdx f1, BASE, RD
+    |  checknum cr1, TMP1
+    |    decode_RD4 TMP2, TMP2
+    |  bge cr0, ->vmeta_comp
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  bge cr1, ->vmeta_comp
+    |  fcmpu cr0, f0, f1
+    if (op == BC_ISLT) {
+      |  bge >1
+    } else if (op == BC_ISGE) {
+      |  blt >1
+    } else if (op == BC_ISLE) {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  bge >1
+    } else {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  blt >1
+    }
+    |  add PC, PC, TMP2
+    |1:
+    |  ins_next
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |.if DUALNUM
+    |  lwzux TMP0, RA, BASE
+    |    addi PC, PC, 4
+    |   lwz CARG2, 4(RA)
+    |  lwzux TMP1, RD, BASE
+    |  checknum cr0, TMP0
+    |    lwz TMP2, -4(PC)
+    |  checknum cr1, TMP1
+    |    decode_RD4 TMP2, TMP2
+    |   lwz CARG3, 4(RD)
+    |  cror 4*cr7+gt, 4*cr0+gt, 4*cr1+gt
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    if (vk) {
+      |  ble cr7, ->BC_ISEQN_Z
+    } else {
+      |  ble cr7, ->BC_ISNEN_Z
+    }
+    |.else
+    |  lwzux TMP0, RA, BASE
+    |   lwz TMP2, 0(PC)
+    |    lfd f0, 0(RA)
+    |   addi PC, PC, 4
+    |  lwzux TMP1, RD, BASE
+    |  checknum cr0, TMP0
+    |   decode_RD4 TMP2, TMP2
+    |    lfd f1, 0(RD)
+    |  checknum cr1, TMP1
+    |   addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  bge cr0, >5
+    |  bge cr1, >5
+    |  fcmpu cr0, f0, f1
+    if (vk) {
+      |  bne >1
+      |  add PC, PC, TMP2
+    } else {
+      |  beq >1
+      |  add PC, PC, TMP2
+    }
+    |1:
+    |  ins_next
+    |.endif
+    |5:  // Either or both types are not numbers.
+    |.if not DUALNUM
+    |    lwz CARG2, 4(RA)
+    |    lwz CARG3, 4(RD)
+    |.endif
+    |.if FFI
+    |  cmpwi cr7, TMP0, LJ_TCDATA
+    |  cmpwi cr5, TMP1, LJ_TCDATA
+    |.endif
+    |   not TMP3, TMP0
+    |  cmplw TMP0, TMP1
+    |   cmplwi cr1, TMP3, ~LJ_TISPRI		// Primitive?
+    |.if FFI
+    |  cror 4*cr7+eq, 4*cr7+eq, 4*cr5+eq
+    |.endif
+    |   cmplwi cr6, TMP3, ~LJ_TISTABUD		// Table or userdata?
+    |.if FFI
+    |  beq cr7, ->vmeta_equal_cd
+    |.endif
+    |    cmplw cr5, CARG2, CARG3
+    |  crandc 4*cr0+gt, 4*cr0+eq, 4*cr1+gt	// 2: Same type and primitive.
+    |  crorc 4*cr0+lt, 4*cr5+eq, 4*cr0+eq	// 1: Same tv or different type.
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr5+eq	// 0: Same type and same tv.
+    |   mr SAVE0, PC
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr0+gt	// 0 or 2.
+    |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+gt	// 1 or 2.
+    if (vk) {
+      |  bne cr0, >6
+      |  add PC, PC, TMP2
+      |6:
+    } else {
+      |  beq cr0, >6
+      |  add PC, PC, TMP2
+      |6:
+    }
+    |.if DUALNUM
+    |  bge cr0, >2			// Done if 1 or 2.
+    |1:
+    |  ins_next
+    |2:
+    |.else
+    |  blt cr0, <1			// Done if 1 or 2.
+    |.endif
+    |  blt cr6, <1			// Done if not tab/ud.
+    |
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  lwz TAB:TMP2, TAB:CARG2->metatable
+    |   li CARG4, 1-vk			// ne = 0 or 1.
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable?
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andix. TMP2, TMP2, 1<<MM_eq
+    |  bne <1				// Or 'no __eq' flag set?
+    |  mr PC, SAVE0			// Restore old PC.
+    |  b ->vmeta_equal			// Handle __eq metamethod.
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
+    |  lwzux TMP0, RA, BASE
+    |   srwi RD, RD, 1
+    |  lwz STR:TMP3, 4(RA)
+    |    lwz TMP2, 0(PC)
+    |   subfic RD, RD, -4
+    |    addi PC, PC, 4
+    |.if FFI
+    |  cmpwi TMP0, LJ_TCDATA
+    |.endif
+    |   lwzx STR:TMP1, KBASE, RD	// KBASE-4-str_const*4
+    |  .gpr64 extsw TMP0, TMP0
+    |  subfic TMP0, TMP0, LJ_TSTR
+    |.if FFI
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  sub TMP1, STR:TMP1, STR:TMP3
+    |  or TMP0, TMP0, TMP1
+    |    decode_RD4 TMP2, TMP2
+    |  subfic TMP0, TMP0, 0
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  subfe TMP1, TMP1, TMP1
+    if (vk) {
+      |  andc TMP2, TMP2, TMP1
+    } else {
+      |  and TMP2, TMP2, TMP1
+    }
+    |  add PC, PC, TMP2
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RD = num_const*8, JMP with RD = target
+    |.if DUALNUM
+    |  lwzux TMP0, RA, BASE
+    |    addi PC, PC, 4
+    |   lwz CARG2, 4(RA)
+    |  lwzux TMP1, RD, KBASE
+    |  checknum cr0, TMP0
+    |    lwz TMP2, -4(PC)
+    |  checknum cr1, TMP1
+    |    decode_RD4 TMP2, TMP2
+    |   lwz CARG3, 4(RD)
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  bne cr0, >7
+    |  bne cr1, >8
+    |   cmpw CARG2, CARG3
+    |4:
+    |.else
+    if (vk) {
+      |->BC_ISEQN_Z:  // Dummy label.
+    } else {
+      |->BC_ISNEN_Z:  // Dummy label.
+    }
+    |  lwzx TMP0, BASE, RA
+    |    addi PC, PC, 4
+    |   lfdx f0, BASE, RA
+    |    lwz TMP2, -4(PC)
+    |  lfdx f1, KBASE, RD
+    |    decode_RD4 TMP2, TMP2
+    |  checknum TMP0
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  bge >3
+    |  fcmpu cr0, f0, f1
+    |.endif
+    if (vk) {
+      |  bne >1
+      |  add PC, PC, TMP2
+      |1:
+      |.if not FFI
+      |3:
+      |.endif
+    } else {
+      |  beq >2
+      |1:
+      |.if not FFI
+      |3:
+      |.endif
+      |  add PC, PC, TMP2
+      |2:
+    }
+    |  ins_next
+    |.if FFI
+    |3:
+    |  cmpwi TMP0, LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |  b <1
+    |.endif
+    |.if DUALNUM
+    |7:  // RA is not an integer.
+    |  bge cr0, <3
+    |  // RA is a number.
+    |   lfd f0, 0(RA)
+    |  blt cr1, >1
+    |  // RA is a number, RD is an integer.
+    |  tonum_i f1, CARG3
+    |  b >2
+    |
+    |8: // RA is an integer, RD is a number.
+    |  tonum_i f0, CARG2
+    |1:
+    |  lfd f1, 0(RD)
+    |2:
+    |  fcmpu cr0, f0, f1
+    |  b <4
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
+    |  lwzx TMP0, BASE, RA
+    |   srwi TMP1, RD, 3
+    |    lwz TMP2, 0(PC)
+    |   not TMP1, TMP1
+    |    addi PC, PC, 4
+    |.if FFI
+    |  cmpwi TMP0, LJ_TCDATA
+    |.endif
+    |  sub TMP0, TMP0, TMP1
+    |.if FFI
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |    decode_RD4 TMP2, TMP2
+    |  .gpr64 extsw TMP0, TMP0
+    |  addic TMP0, TMP0, -1
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  subfe TMP1, TMP1, TMP1
+    if (vk) {
+      |  and TMP2, TMP2, TMP1
+    } else {
+      |  andc TMP2, TMP2, TMP1
+    }
+    |  add PC, PC, TMP2
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
+    |  lwzx TMP0, BASE, RD
+    |   lwz INS, 0(PC)
+    |   addi PC, PC, 4
+    if (op == BC_IST || op == BC_ISF) {
+      |  .gpr64 extsw TMP0, TMP0
+      |  subfic TMP0, TMP0, LJ_TTRUE
+      |   decode_RD4 TMP2, INS
+      |  subfe TMP1, TMP1, TMP1
+      |   addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+      if (op == BC_IST) {
+	|  andc TMP2, TMP2, TMP1
+      } else {
+	|  and TMP2, TMP2, TMP1
+      }
+      |  add PC, PC, TMP2
+    } else {
+      |  li TMP1, LJ_TFALSE
+      |   lfdx f0, BASE, RD
+      |  cmplw TMP0, TMP1
+      if (op == BC_ISTC) {
+	|  bge >1
+      } else {
+	|  blt >1
+      }
+      |  addis PC, PC, -(BCBIAS_J*4 >> 16)
+      |  decode_RD4 TMP2, INS
+      |   stfdx f0, BASE, RA
+      |  add PC, PC, TMP2
+      |1:
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RD = src*8
+    |  ins_next1
+    |  lfdx f0, BASE, RD
+    |  stfdx f0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RD = src*8
+    |  ins_next1
+    |  lwzx TMP0, BASE, RD
+    |  .gpr64 extsw TMP0, TMP0
+    |  subfic TMP1, TMP0, LJ_TTRUE
+    |  adde TMP0, TMP0, TMP1
+    |  stwx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RD = src*8
+    |  lwzux TMP1, RD, BASE
+    |   lwz TMP0, 4(RD)
+    |  checknum TMP1
+    |.if DUALNUM
+    |  bne >5
+    |.if GPR64
+    |  lus TMP2, 0x8000
+    |  neg TMP0, TMP0
+    |  cmplw TMP0, TMP2
+    |  beq >4
+    |.else
+    |  nego. TMP0, TMP0
+    |  bso >4
+    |1:
+    |.endif
+    |  ins_next1
+    |  stwux TISNUM, RA, BASE
+    |   stw TMP0, 4(RA)
+    |3:
+    |  ins_next2
+    |4:
+    |.if not GPR64
+    |  // Potential overflow.
+    |  mcrxr cr0; bley <1		// Ignore unrelated overflow.
+    |.endif
+    |  lus TMP1, 0x41e0			// 2^31.
+    |  li TMP0, 0
+    |  b >7
+    |.endif
+    |5:
+    |  bge ->vmeta_unm
+    |  xoris TMP1, TMP1, 0x8000
+    |7:
+    |  ins_next1
+    |  stwux TMP1, RA, BASE
+    |   stw TMP0, 4(RA)
+    |.if DUALNUM
+    |  b <3
+    |.else
+    |  ins_next2
+    |.endif
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RD = src*8
+    |  lwzux TMP0, RD, BASE
+    |   lwz CARG1, 4(RD)
+    |  checkstr TMP0; bne >2
+    |  lwz CRET1, STR:CARG1->len
+    |1:
+    |.if DUALNUM
+    |  ins_next1
+    |  stwux TISNUM, RA, BASE
+    |   stw CRET1, 4(RA)
+    |.else
+    |  tonum_u f0, CRET1		// Result is a non-negative integer.
+    |  ins_next1
+    |  stfdx f0, BASE, RA
+    |.endif
+    |  ins_next2
+    |2:
+    |  checktab TMP0; bne ->vmeta_len
+#if LJ_52
+    |  lwz TAB:TMP2, TAB:CARG1->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  bne >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  bl extern lj_tab_len		// (GCtab *t)
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+#if LJ_52
+    |9:
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andix. TMP0, TMP0, 1<<MM_len
+    |  bne <3				// 'no __len' flag set: done.
+    |  b ->vmeta_len
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   lwzx TMP1, BASE, RB
+    |   .if DUALNUM
+    |     lwzx TMP2, KBASE, RC
+    |   .endif
+    |    lfdx f14, BASE, RB
+    |    lfdx f15, KBASE, RC
+    |   .if DUALNUM
+    |     checknum cr0, TMP1
+    |     checknum cr1, TMP2
+    |     crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |     bge ->vmeta_arith_vn
+    |   .else
+    |     checknum TMP1; bge ->vmeta_arith_vn
+    |   .endif
+    ||  break;
+    ||case 1:
+    |   lwzx TMP1, BASE, RB
+    |   .if DUALNUM
+    |     lwzx TMP2, KBASE, RC
+    |   .endif
+    |    lfdx f15, BASE, RB
+    |    lfdx f14, KBASE, RC
+    |   .if DUALNUM
+    |     checknum cr0, TMP1
+    |     checknum cr1, TMP2
+    |     crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |     bge ->vmeta_arith_nv
+    |   .else
+    |     checknum TMP1; bge ->vmeta_arith_nv
+    |   .endif
+    ||  break;
+    ||default:
+    |   lwzx TMP1, BASE, RB
+    |   lwzx TMP2, BASE, RC
+    |    lfdx f14, BASE, RB
+    |    lfdx f15, BASE, RC
+    |   checknum cr0, TMP1
+    |   checknum cr1, TMP2
+    |   crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |   bge ->vmeta_arith_vv
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithfallback, ins
+    ||switch (vk) {
+    ||case 0:
+    |   ins ->vmeta_arith_vn2
+    ||  break;
+    ||case 1:
+    |   ins ->vmeta_arith_nv2
+    ||  break;
+    ||default:
+    |   ins ->vmeta_arith_vv2
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro intmod, a, b, c
+    |  bl ->vm_modi
+    |.endmacro
+    |
+    |.macro fpmod, a, b, c
+    |->BC_MODVN_Z:
+    |  fdiv FARG1, b, c
+    |  // NYI: Use internal implementation of floor.
+    |  blex floor			// floor(b/c)
+    |  fmul a, FARG1, c
+    |  fsub a, b, a			// b - floor(b/c)*c
+    |.endmacro
+    |
+    |.macro ins_arithfp, fpins
+    |  ins_arithpre
+    |.if "fpins" == "fpmod_"
+    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    |.else
+    |  fpins f0, f14, f15
+    |  ins_next1
+    |  stfdx f0, BASE, RA
+    |  ins_next2
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins, fpins
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   lwzux TMP1, RB, BASE
+    |   lwzux TMP2, RC, KBASE
+    |    lwz CARG1, 4(RB)
+    |   checknum cr0, TMP1
+    |    lwz CARG2, 4(RC)
+    ||  break;
+    ||case 1:
+    |   lwzux TMP1, RB, BASE
+    |   lwzux TMP2, RC, KBASE
+    |    lwz CARG2, 4(RB)
+    |   checknum cr0, TMP1
+    |    lwz CARG1, 4(RC)
+    ||  break;
+    ||default:
+    |   lwzux TMP1, RB, BASE
+    |   lwzux TMP2, RC, BASE
+    |    lwz CARG1, 4(RB)
+    |   checknum cr0, TMP1
+    |    lwz CARG2, 4(RC)
+    ||  break;
+    ||}
+    |  checknum cr1, TMP2
+    |  bne >5
+    |  bne cr1, >5
+    |  intins CARG1, CARG1, CARG2
+    |  bso >4
+    |1:
+    |  ins_next1
+    |  stwux TISNUM, RA, BASE
+    |  stw CARG1, 4(RA)
+    |2:
+    |  ins_next2
+    |4:  // Overflow.
+    |  mcrxr cr0; bley <1		// Ignore unrelated overflow.
+    |  ins_arithfallback b
+    |5:  // FP variant.
+    ||if (vk == 1) {
+    |  lfd f15, 0(RB)
+    |   crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |  lfd f14, 0(RC)
+    ||} else {
+    |  lfd f14, 0(RB)
+    |   crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |  lfd f15, 0(RC)
+    ||}
+    |   ins_arithfallback bge
+    |.if "fpins" == "fpmod_"
+    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    |.else
+    |  fpins f0, f14, f15
+    |  ins_next1
+    |  stfdx f0, BASE, RA
+    |  b <2
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arith, intins, fpins
+    |.if DUALNUM
+    |  ins_arithdn intins, fpins
+    |.else
+    |  ins_arithfp fpins
+    |.endif
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |.if GPR64
+    |.macro addo32., y, a, b
+    |  // Need to check overflow for (a<<32) + (b<<32).
+    |  rldicr TMP0, a, 32, 31
+    |  rldicr TMP3, b, 32, 31
+    |  addo. TMP0, TMP0, TMP3
+    |  add y, a, b
+    |.endmacro
+    |  ins_arith addo32., fadd
+    |.else
+    |  ins_arith addo., fadd
+    |.endif
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |.if GPR64
+    |.macro subo32., y, a, b
+    |  // Need to check overflow for (a<<32) - (b<<32).
+    |  rldicr TMP0, a, 32, 31
+    |  rldicr TMP3, b, 32, 31
+    |  subo. TMP0, TMP0, TMP3
+    |  sub y, a, b
+    |.endmacro
+    |  ins_arith subo32., fsub
+    |.else
+    |  ins_arith subo., fsub
+    |.endif
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith mullwo., fmul
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithfp fdiv
+    break;
+  case BC_MODVN:
+    |  ins_arith intmod, fpmod
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arith intmod, fpmod_
+    break;
+  case BC_POW:
+    |  // NYI: (partial) integer arithmetic.
+    |  lwzx TMP1, BASE, RB
+    |   lfdx FARG1, BASE, RB
+    |  lwzx TMP2, BASE, RC
+    |   lfdx FARG2, BASE, RC
+    |  checknum cr0, TMP1
+    |  checknum cr1, TMP2
+    |  crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |  bge ->vmeta_arith_vv
+    |  blex pow
+    |  ins_next1
+    |  stfdx FARG1, BASE, RA
+    |  ins_next2
+    break;
+
+  case BC_CAT:
+    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
+    |  sub CARG3, RC, RB
+    |   stp BASE, L->base
+    |  add CARG2, BASE, RC
+    |  mr SAVE0, RB
+    |->BC_CAT_Z:
+    |   stw PC, SAVE_PC
+    |  mr CARG1, L
+    |  srwi CARG3, CARG3, 3
+    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  cmplwi CRET1, 0
+    |   lp BASE, L->base
+    |  bne ->vmeta_binop
+    |  ins_next1
+    |  lfdx f0, BASE, SAVE0		// Copy result from RB to RA.
+    |  stfdx f0, BASE, RA
+    |  ins_next2
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RD = str_const*8 (~)
+    |  srwi TMP1, RD, 1
+    |  subfic TMP1, TMP1, -4
+    |  ins_next1
+    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-str_const*4
+    |  li TMP2, LJ_TSTR
+    |  stwux TMP2, RA, BASE
+    |  stw TMP0, 4(RA)
+    |  ins_next2
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RD = cdata_const*8 (~)
+    |  srwi TMP1, RD, 1
+    |  subfic TMP1, TMP1, -4
+    |  ins_next1
+    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-cdata_const*4
+    |  li TMP2, LJ_TCDATA
+    |  stwux TMP2, RA, BASE
+    |  stw TMP0, 4(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, RD = int16_literal*8
+    |.if DUALNUM
+    |  slwi RD, RD, 13
+    |  srawi RD, RD, 16
+    |  ins_next1
+    |   stwux TISNUM, RA, BASE
+    |   stw RD, 4(RA)
+    |  ins_next2
+    |.else
+    |  // The soft-float approach is faster.
+    |  slwi RD, RD, 13
+    |  srawi TMP1, RD, 31
+    |  xor TMP2, TMP1, RD
+    |  sub TMP2, TMP2, TMP1		// TMP2 = abs(x)
+    |  cntlzw TMP3, TMP2
+    |  subfic TMP1, TMP3, 0x40d		// TMP1 = exponent-1
+    |   slw TMP2, TMP2, TMP3		// TMP2 = left aligned mantissa
+    |    subfic TMP3, RD, 0
+    |  slwi TMP1, TMP1, 20
+    |   rlwimi RD, TMP2, 21, 1, 31	// hi = sign(x) | (mantissa>>11)
+    |    subfe TMP0, TMP0, TMP0
+    |   add RD, RD, TMP1		// hi = hi + exponent-1
+    |    and RD, RD, TMP0		// hi = x == 0 ? 0 : hi
+    |  ins_next1
+    |    stwux RD, RA, BASE
+    |    stw ZERO, 4(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RD = num_const*8
+    |  ins_next1
+    |  lfdx f0, KBASE, RD
+    |  stfdx f0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RD = primitive_type*8 (~)
+    |  srwi TMP1, RD, 3
+    |  not TMP0, TMP1
+    |  ins_next1
+    |  stwx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RD = end*8
+    |  stwx TISNIL, BASE, RA
+    |   addi RA, RA, 8
+    |1:
+    |  stwx TISNIL, BASE, RA
+    |  cmpw RA, RD
+    |   addi RA, RA, 8
+    |  blt <1
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RD = uvnum*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RD, RD, 1
+    |   addi RD, RD, offsetof(GCfuncL, uvptr)
+    |  lwzx UPVAL:RB, LFUNC:RB, RD
+    |  ins_next1
+    |  lwz TMP1, UPVAL:RB->v
+    |  lfd f0, 0(TMP1)
+    |  stfdx f0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RD = src*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |    srwi RA, RA, 1
+    |    addi RA, RA, offsetof(GCfuncL, uvptr)
+    |   lfdux f0, RD, BASE
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  lbz TMP3, UPVAL:RB->marked
+    |   lwz CARG2, UPVAL:RB->v
+    |  andix. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |    lbz TMP0, UPVAL:RB->closed
+    |   lwz TMP2, 0(RD)
+    |   stfd f0, 0(CARG2)
+    |    cmplwi cr1, TMP0, 0
+    |   lwz TMP1, 4(RD)
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+    |   subi TMP2, TMP2, (LJ_TNUMX+1)
+    |  bne >2				// Upvalue is closed and black?
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  cmplwi TMP2, LJ_TISGCV - (LJ_TNUMX+1)
+    |  bge <1				// tvisgcv(v)
+    |  lbz TMP3, GCOBJ:TMP1->gch.marked
+    |  andix. TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
+    |   la CARG1, GG_DISP2G(DISPATCH)
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  beq <1
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RD = str_const*8 (~)
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi TMP1, RD, 1
+    |    srwi RA, RA, 1
+    |   subfic TMP1, TMP1, -4
+    |    addi RA, RA, offsetof(GCfuncL, uvptr)
+    |   lwzx STR:TMP1, KBASE, TMP1	// KBASE-4-str_const*4
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  lbz TMP3, UPVAL:RB->marked
+    |   lwz CARG2, UPVAL:RB->v
+    |  andix. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |   lbz TMP3, STR:TMP1->marked
+    |   lbz TMP2, UPVAL:RB->closed
+    |   li TMP0, LJ_TSTR
+    |   stw STR:TMP1, 4(CARG2)
+    |   stw TMP0, 0(CARG2)
+    |  bne >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  andix. TMP3, TMP3, LJ_GC_WHITES	// iswhite(str)
+    |   cmplwi cr1, TMP2, 0
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+    |   la CARG1, GG_DISP2G(DISPATCH)
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  beq <1
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RD = num_const*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RA, RA, 1
+    |   addi RA, RA, offsetof(GCfuncL, uvptr)
+    |    lfdx f0, KBASE, RD
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  ins_next1
+    |  lwz TMP1, UPVAL:RB->v
+    |  stfd f0, 0(TMP1)
+    |  ins_next2
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RD = primitive_type*8 (~)
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RA, RA, 1
+    |    srwi TMP0, RD, 3
+    |   addi RA, RA, offsetof(GCfuncL, uvptr)
+    |    not TMP0, TMP0
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  ins_next1
+    |  lwz TMP1, UPVAL:RB->v
+    |  stw TMP0, 0(TMP1)
+    |  ins_next2
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RD = target
+    |  lwz TMP1, L->openupval
+    |  branch_RD			// Do this first since RD is not saved.
+    |   stp BASE, L->base
+    |  cmplwi TMP1, 0
+    |   mr CARG1, L
+    |  beq >1
+    |   add CARG2, BASE, RA
+    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  lp BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
+    |  srwi TMP1, RD, 1
+    |   stp BASE, L->base
+    |  subfic TMP1, TMP1, -4
+    |   stw PC, SAVE_PC
+    |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
+    |   mr CARG1, L
+    |  lwz CARG3, FRAME_FUNC(BASE)
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  bl extern lj_func_newL_gc
+    |  // Returns GCfuncL *.
+    |  lp BASE, L->base
+    |   li TMP0, LJ_TFUNC
+    |  stwux TMP0, RA, BASE
+    |  stw LFUNC:CRET1, 4(RA)
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
+    |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+    |   mr CARG1, L
+    |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+    |   stp BASE, L->base
+    |  cmplw TMP0, TMP1
+    |   stw PC, SAVE_PC
+    |  bge >5
+    |1:
+    if (op == BC_TNEW) {
+      |  rlwinm CARG2, RD, 29, 21, 31
+      |  rlwinm CARG3, RD, 18, 27, 31
+      |  cmpwi CARG2, 0x7ff; beq >3
+      |2:
+      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  // Returns Table *.
+    } else {
+      |  srwi TMP1, RD, 1
+      |  subfic TMP1, TMP1, -4
+      |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
+      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
+      |  // Returns Table *.
+    }
+    |  lp BASE, L->base
+    |   li TMP0, LJ_TTAB
+    |  stwux TMP0, RA, BASE
+    |  stw TAB:CRET1, 4(RA)
+    |  ins_next
+    if (op == BC_TNEW) {
+      |3:
+      |  li CARG2, 0x801
+      |  b <2
+    }
+    |5:
+    |  mr SAVE0, RD
+    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
+    |  mr RD, SAVE0
+    |  mr CARG1, L
+    |  b <1
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RD = str_const*8 (~)
+  case BC_GSET:
+    |  // RA = src*8, RD = str_const*8 (~)
+    |  lwz LFUNC:TMP2, FRAME_FUNC(BASE)
+    |   srwi TMP1, RD, 1
+    |  lwz TAB:RB, LFUNC:TMP2->env
+    |   subfic TMP1, TMP1, -4
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    break;
+
+  case BC_TGETV:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  lwzux CARG1, RB, BASE
+    |  lwzux CARG2, RC, BASE
+    |   lwz TAB:RB, 4(RB)
+    |.if DUALNUM
+    |   lwz RC, 4(RC)
+    |.else
+    |   lfd f0, 0(RC)
+    |.endif
+    |  checktab CARG1
+    |   checknum cr1, CARG2
+    |  bne ->vmeta_tgetv
+    |.if DUALNUM
+    |  lwz TMP0, TAB:RB->asize
+    |   bne cr1, >5
+    |   lwz TMP1, TAB:RB->array
+    |  cmplw TMP0, RC
+    |   slwi TMP2, RC, 3
+    |.else
+    |   bge cr1, >5
+    |  // Convert number key to integer, check for integerness and range.
+    |  fctiwz f1, f0
+    |    fadd f2, f0, TOBIT
+    |  stfd f1, TMPD
+    |   lwz TMP0, TAB:RB->asize
+    |    fsub f2, f2, TOBIT
+    |  lwz TMP2, TMPD_LO
+    |   lwz TMP1, TAB:RB->array
+    |    fcmpu cr1, f0, f2
+    |  cmplw cr0, TMP0, TMP2
+    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+eq
+    |   slwi TMP2, TMP2, 3
+    |.endif
+    |  ble ->vmeta_tgetv		// Integer key and in array part?
+    |  lwzx TMP0, TMP1, TMP2
+    |   lfdx f14, TMP1, TMP2
+    |  checknil TMP0; beq >2
+    |1:
+    |  ins_next1
+    |   stfdx f14, BASE, RA
+    |  ins_next2
+    |
+    |2:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andix. TMP0, TMP0, 1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetv
+    |
+    |5:
+    |  checkstr CARG2; bne ->vmeta_tgetv
+    |.if not DUALNUM
+    |  lwz STR:RC, 4(RC)
+    |.endif
+    |  b ->BC_TGETS_Z			// String key?
+    break;
+  case BC_TGETS:
+    |  // RA = dst*8, RB = table*8, RC = str_const*8 (~)
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP1, RC, 1
+    |    lwz TAB:RB, 4(RB)
+    |   subfic TMP1, TMP1, -4
+    |  checktab CARG1
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    |  bne ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  lwz TMP0, TAB:RB->hmask
+    |  lwz TMP1, STR:RC->hash
+    |  lwz NODE:TMP2, TAB:RB->node
+    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+    |  slwi TMP0, TMP1, 5
+    |  slwi TMP1, TMP1, 3
+    |  sub TMP1, TMP0, TMP1
+    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  lwz CARG1, NODE:TMP2->key
+    |   lwz TMP0, 4+offsetof(Node, key)(NODE:TMP2)
+    |    lwz CARG2, NODE:TMP2->val
+    |     lwz TMP1, 4+offsetof(Node, val)(NODE:TMP2)
+    |  checkstr CARG1; bne >4
+    |   cmpw TMP0, STR:RC; bne >4
+    |    checknil CARG2; beq >5		// Key found, but nil value?
+    |3:
+    |    stwux CARG2, RA, BASE
+    |     stw TMP1, 4(RA)
+    |  ins_next
+    |
+    |4:  // Follow hash chain.
+    |  lwz NODE:TMP2, NODE:TMP2->next
+    |  cmplwi NODE:TMP2, 0
+    |  bne <1
+    |  // End of hash chain: key not found, nil result.
+    |   li CARG2, LJ_TNIL
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <3				// No metatable: done.
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andix. TMP0, TMP0, 1<<MM_index
+    |  bne <3				// 'no __index' flag set: done.
+    |  b ->vmeta_tgets
+    break;
+  case BC_TGETB:
+    |  // RA = dst*8, RB = table*8, RC = index*8
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP0, RC, 3
+    |   lwz TAB:RB, 4(RB)
+    |  checktab CARG1; bne ->vmeta_tgetb
+    |  lwz TMP1, TAB:RB->asize
+    |   lwz TMP2, TAB:RB->array
+    |  cmplw TMP0, TMP1; bge ->vmeta_tgetb
+    |  lwzx TMP1, TMP2, RC
+    |   lfdx f0, TMP2, RC
+    |  checknil TMP1; beq >5
+    |1:
+    |  ins_next1
+    |   stfdx f0, BASE, RA
+    |  ins_next2
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andix. TMP2, TMP2, 1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetb			// Caveat: preserve TMP0!
+    break;
+
+  case BC_TSETV:
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  lwzux CARG1, RB, BASE
+    |  lwzux CARG2, RC, BASE
+    |   lwz TAB:RB, 4(RB)
+    |.if DUALNUM
+    |   lwz RC, 4(RC)
+    |.else
+    |   lfd f0, 0(RC)
+    |.endif
+    |  checktab CARG1
+    |   checknum cr1, CARG2
+    |  bne ->vmeta_tsetv
+    |.if DUALNUM
+    |  lwz TMP0, TAB:RB->asize
+    |   bne cr1, >5
+    |   lwz TMP1, TAB:RB->array
+    |  cmplw TMP0, RC
+    |   slwi TMP0, RC, 3
+    |.else
+    |   bge cr1, >5
+    |  // Convert number key to integer, check for integerness and range.
+    |  fctiwz f1, f0
+    |    fadd f2, f0, TOBIT
+    |  stfd f1, TMPD
+    |   lwz TMP0, TAB:RB->asize
+    |    fsub f2, f2, TOBIT
+    |  lwz TMP2, TMPD_LO
+    |   lwz TMP1, TAB:RB->array
+    |    fcmpu cr1, f0, f2
+    |  cmplw cr0, TMP0, TMP2
+    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+eq
+    |   slwi TMP0, TMP2, 3
+    |.endif
+    |  ble ->vmeta_tsetv		// Integer key and in array part?
+    |   lwzx TMP2, TMP1, TMP0
+    |  lbz TMP3, TAB:RB->marked
+    |    lfdx f14, BASE, RA
+    |   checknil TMP2; beq >3
+    |1:
+    |  andix. TMP2, TMP3, LJ_GC_BLACK	// isblack(table)
+    |    stfdx f14, TMP1, TMP0
+    |  bne >7
+    |2:
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andix. TMP2, TMP2, 1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetv
+    |
+    |5:
+    |  checkstr CARG2; bne ->vmeta_tsetv
+    |.if not DUALNUM
+    |  lwz STR:RC, 4(RC)
+    |.endif
+    |  b ->BC_TSETS_Z			// String key?
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <2
+    break;
+  case BC_TSETS:
+    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP1, RC, 1
+    |    lwz TAB:RB, 4(RB)
+    |   subfic TMP1, TMP1, -4
+    |  checktab CARG1
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    |  bne ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = src*8
+    |  lwz TMP0, TAB:RB->hmask
+    |  lwz TMP1, STR:RC->hash
+    |  lwz NODE:TMP2, TAB:RB->node
+    |    stb ZERO, TAB:RB->nomm		// Clear metamethod cache.
+    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+    |    lfdx f14, BASE, RA
+    |  slwi TMP0, TMP1, 5
+    |  slwi TMP1, TMP1, 3
+    |  sub TMP1, TMP0, TMP1
+    |    lbz TMP3, TAB:RB->marked
+    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  lwz CARG1, NODE:TMP2->key
+    |   lwz TMP0, 4+offsetof(Node, key)(NODE:TMP2)
+    |    lwz CARG2, NODE:TMP2->val
+    |     lwz NODE:TMP1, NODE:TMP2->next
+    |  checkstr CARG1; bne >5
+    |   cmpw TMP0, STR:RC; bne >5
+    |    checknil CARG2; beq >4		// Key found, but nil value?
+    |2:
+    |  andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |    stfd f14, NODE:TMP2->val
+    |  bne >7
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |  cmplwi TAB:TMP1, 0
+    |  beq <2				// No metatable: done.
+    |  lbz TMP0, TAB:TMP1->nomm
+    |  andix. TMP0, TMP0, 1<<MM_newindex
+    |  bne <2				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsets
+    |
+    |5:  // Follow hash chain.
+    |  cmplwi NODE:TMP1, 0
+    |   mr NODE:TMP2, NODE:TMP1
+    |  bne <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |   la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+    |   stw PC, SAVE_PC
+    |   mr CARG1, L
+    |  cmplwi TAB:TMP1, 0
+    |   stp BASE, L->base
+    |  beq >6				// No metatable: continue.
+    |  lbz TMP0, TAB:TMP1->nomm
+    |  andix. TMP0, TMP0, 1<<MM_newindex
+    |  beq ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |6:
+    |  li TMP0, LJ_TSTR
+    |   stw STR:RC, 4(CARG3)
+    |   mr CARG2, TAB:RB
+    |  stw TMP0, 0(CARG3)
+    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
+    |  // Returns TValue *.
+    |  lp BASE, L->base
+    |  stfd f14, 0(CRET1)
+    |  b <3				// No 2nd write barrier needed.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <3
+    break;
+  case BC_TSETB:
+    |  // RA = src*8, RB = table*8, RC = index*8
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP0, RC, 3
+    |   lwz TAB:RB, 4(RB)
+    |  checktab CARG1; bne ->vmeta_tsetb
+    |  lwz TMP1, TAB:RB->asize
+    |   lwz TMP2, TAB:RB->array
+    |    lbz TMP3, TAB:RB->marked
+    |  cmplw TMP0, TMP1
+    |   lfdx f14, BASE, RA
+    |  bge ->vmeta_tsetb
+    |  lwzx TMP1, TMP2, RC
+    |  checknil TMP1; beq >5
+    |1:
+    |  andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |   stfdx f14, TMP2, RC
+    |  bne >7
+    |2:
+    |  ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |  cmplwi TAB:TMP1, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP1, TAB:TMP1->nomm
+    |  andix. TMP1, TMP1, 1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetb			// Caveat: preserve TMP0!
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
+    |  add RA, BASE, RA
+    |1:
+    |   add TMP3, KBASE, RD
+    |  lwz TAB:CARG2, -4(RA)		// Guaranteed to be a table.
+    |    addic. TMP0, MULTRES, -8
+    |   lwz TMP3, 4(TMP3)		// Integer constant is in lo-word.
+    |    srwi CARG3, TMP0, 3
+    |    beq >4				// Nothing to copy?
+    |  add CARG3, CARG3, TMP3
+    |  lwz TMP2, TAB:CARG2->asize
+    |   slwi TMP1, TMP3, 3
+    |    lbz TMP3, TAB:CARG2->marked
+    |  cmplw CARG3, TMP2
+    |   add TMP2, RA, TMP0
+    |   lwz TMP0, TAB:CARG2->array
+    |  bgt >5
+    |   add TMP1, TMP1, TMP0
+    |    andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |3:  // Copy result slots to table.
+    |   lfd f0, 0(RA)
+    |  addi RA, RA, 8
+    |  cmpw cr1, RA, TMP2
+    |   stfd f0, 0(TMP1)
+    |    addi TMP1, TMP1, 8
+    |  blt cr1, <3
+    |  bne >7
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |   stp BASE, L->base
+    |  mr CARG1, L
+    |   stw PC, SAVE_PC
+    |  mr SAVE0, RD
+    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
+    |  // Must not reallocate the stack.
+    |  mr RD, SAVE0
+    |  b <1
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP0
+    |  b <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
+    |  add NARGS8:RC, NARGS8:RC, MULTRES
+    |  // Fall through. Assumes BC_CALL follows.
+    break;
+  case BC_CALL:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
+    |  mr TMP2, BASE
+    |  lwzux TMP0, BASE, RA
+    |   lwz LFUNC:RB, 4(BASE)
+    |    subi NARGS8:RC, NARGS8:RC, 8
+    |   addi BASE, BASE, 8
+    |  checkfunc TMP0; bne ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
+    |  add NARGS8:RC, NARGS8:RC, MULTRES
+    |  // Fall through. Assumes BC_CALLT follows.
+    break;
+  case BC_CALLT:
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |  lwzux TMP0, RA, BASE
+    |   lwz LFUNC:RB, 4(RA)
+    |    subi NARGS8:RC, NARGS8:RC, 8
+    |    lwz TMP1, FRAME_PC(BASE)
+    |  checkfunc TMP0
+    |   addi RA, RA, 8
+    |  bne ->vmeta_callt
+    |->BC_CALLT_Z:
+    |  andix. TMP0, TMP1, FRAME_TYPE	// Caveat: preserve cr0 until the crand.
+    |   lbz TMP3, LFUNC:RB->ffid
+    |    xori TMP2, TMP1, FRAME_VARG
+    |    cmplwi cr1, NARGS8:RC, 0
+    |  bne >7
+    |1:
+    |  stw LFUNC:RB, FRAME_FUNC(BASE)	// Copy function down, but keep PC.
+    |  li TMP2, 0
+    |   cmplwi cr7, TMP3, 1		// (> FF_C) Calling a fast function?
+    |    beq cr1, >3
+    |2:
+    |  addi TMP3, TMP2, 8
+    |   lfdx f0, RA, TMP2
+    |  cmplw cr1, TMP3, NARGS8:RC
+    |   stfdx f0, BASE, TMP2
+    |  mr TMP2, TMP3
+    |  bne cr1, <2
+    |3:
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+gt
+    |  beq >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  lwz INS, -4(TMP1)
+    |  decode_RA8 RA, INS
+    |  sub TMP1, BASE, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC-8(TMP1)
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
+    |  b <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  andix. TMP0, TMP2, FRAME_TYPEP
+    |  bne <1				// Vararg frame below?
+    |  sub BASE, BASE, TMP2		// Relocate BASE down.
+    |  lwz TMP1, FRAME_PC(BASE)
+    |  andix. TMP0, TMP1, FRAME_TYPE
+    |  b <1
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
+    |  mr TMP2, BASE
+    |  add BASE, BASE, RA
+    |  lwz TMP1, -24(BASE)
+    |   lwz LFUNC:RB, -20(BASE)
+    |    lfd f1, -8(BASE)
+    |    lfd f0, -16(BASE)
+    |  stw TMP1, 0(BASE)		// Copy callable.
+    |   stw LFUNC:RB, 4(BASE)
+    |  checkfunc TMP1
+    |    stfd f1, 16(BASE)		// Copy control var.
+    |     li NARGS8:RC, 16		// Iterators get 2 arguments.
+    |    stfdu f0, 8(BASE)		// Copy state.
+    |  bne ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |.if JIT
+    |  // NYI: add hotloop, record BC_ITERN.
+    |.endif
+    |  add RA, BASE, RA
+    |  lwz TAB:RB, -12(RA)
+    |  lwz RC, -4(RA)			// Get index from control var.
+    |  lwz TMP0, TAB:RB->asize
+    |  lwz TMP1, TAB:RB->array
+    |   addi PC, PC, 4
+    |1:  // Traverse array part.
+    |  cmplw RC, TMP0
+    |   slwi TMP3, RC, 3
+    |  bge >5				// Index points after array part?
+    |  lwzx TMP2, TMP1, TMP3
+    |   lfdx f0, TMP1, TMP3
+    |  checknil TMP2
+    |     lwz INS, -4(PC)
+    |  beq >4
+    |.if DUALNUM
+    |   stw RC, 4(RA)
+    |   stw TISNUM, 0(RA)
+    |.else
+    |   tonum_u f1, RC
+    |.endif
+    |    addi RC, RC, 1
+    |     addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |  stfd f0, 8(RA)
+    |     decode_RD4 TMP1, INS
+    |    stw RC, -4(RA)			// Update control var.
+    |     add PC, TMP1, TMP3
+    |.if not DUALNUM
+    |   stfd f1, 0(RA)
+    |.endif
+    |3:
+    |  ins_next
+    |
+    |4:  // Skip holes in array part.
+    |  addi RC, RC, 1
+    |  b <1
+    |
+    |5:  // Traverse hash part.
+    |  lwz TMP1, TAB:RB->hmask
+    |  sub RC, RC, TMP0
+    |   lwz TMP2, TAB:RB->node
+    |6:
+    |  cmplw RC, TMP1			// End of iteration? Branch to ITERL+1.
+    |   slwi TMP3, RC, 5
+    |  bgty <3
+    |   slwi RB, RC, 3
+    |   sub TMP3, TMP3, RB
+    |  lwzx RB, TMP2, TMP3
+    |  lfdx f0, TMP2, TMP3
+    |   add NODE:TMP3, TMP2, TMP3
+    |  checknil RB
+    |     lwz INS, -4(PC)
+    |  beq >7
+    |   lfd f1, NODE:TMP3->key
+    |     addis TMP2, PC, -(BCBIAS_J*4 >> 16)
+    |  stfd f0, 8(RA)
+    |    add RC, RC, TMP0
+    |     decode_RD4 TMP1, INS
+    |   stfd f1, 0(RA)
+    |    addi RC, RC, 1
+    |     add PC, TMP1, TMP2
+    |    stw RC, -4(RA)			// Update control var.
+    |  b <3
+    |
+    |7:  // Skip holes in hash part.
+    |  addi RC, RC, 1
+    |  b <6
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RD = target (points to ITERN)
+    |  add RA, BASE, RA
+    |  lwz TMP0, -24(RA)
+    |  lwz CFUNC:TMP1, -20(RA)
+    |   lwz TMP2, -16(RA)
+    |    lwz TMP3, -8(RA)
+    |   cmpwi cr0, TMP2, LJ_TTAB
+    |  cmpwi cr1, TMP0, LJ_TFUNC
+    |    cmpwi cr6, TMP3, LJ_TNIL
+    |  bne cr1, >5
+    |  lbz TMP1, CFUNC:TMP1->ffid
+    |   crand 4*cr0+eq, 4*cr0+eq, 4*cr6+eq
+    |  cmpwi cr7, TMP1, FF_next_N
+    |    srwi TMP0, RD, 1
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+eq
+    |    add TMP3, PC, TMP0
+    |  bne cr0, >5
+    |  lus TMP1, 0xfffe
+    |  ori TMP1, TMP1, 0x7fff
+    |  stw ZERO, -4(RA)			// Initialize control var.
+    |  stw TMP1, -8(RA)
+    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  li TMP0, BC_JMP
+    |   li TMP1, BC_ITERC
+    |  stb TMP0, -1(PC)
+    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
+    |   stb TMP1, 3(PC)
+    |  b <1
+    break;
+
+  case BC_VARG:
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  lwz TMP0, FRAME_PC(BASE)
+    |  add RC, BASE, RC
+    |   add RA, BASE, RA
+    |  addi RC, RC, FRAME_VARG
+    |   add TMP2, RA, RB
+    |  subi TMP3, BASE, 8		// TMP3 = vtop
+    |  sub RC, RC, TMP0			// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  cmplwi cr1, RB, 0
+    |.if PPE
+    |   sub TMP1, TMP3, RC
+    |   cmpwi TMP1, 0
+    |.else
+    |   sub. TMP1, TMP3, RC
+    |.endif
+    |  beq cr1, >5			// Copy all varargs?
+    |   subi TMP2, TMP2, 16
+    |   ble >2				// No vararg slots?
+    |1:  // Copy vararg slots to destination slots.
+    |  lfd f0, 0(RC)
+    |   addi RC, RC, 8
+    |  stfd f0, 0(RA)
+    |  cmplw RA, TMP2
+    |   cmplw cr1, RC, TMP3
+    |  bge >3				// All destination slots filled?
+    |    addi RA, RA, 8
+    |   blt cr1, <1			// More vararg slots?
+    |2:  // Fill up remainder with nil.
+    |  stw TISNIL, 0(RA)
+    |  cmplw RA, TMP2
+    |   addi RA, RA, 8
+    |  blt <2
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  lwz TMP0, L->maxstack
+    |   li MULTRES, 8			// MULTRES = (0+1)*8
+    |  bley <3				// No vararg slots?
+    |  add TMP2, RA, TMP1
+    |  cmplw TMP2, TMP0
+    |   addi MULTRES, TMP1, 8
+    |  bgt >7
+    |6:
+    |  lfd f0, 0(RC)
+    |   addi RC, RC, 8
+    |  stfd f0, 0(RA)
+    |  cmplw RC, TMP3
+    |   addi RA, RA, 8
+    |  blt <6				// More vararg slots?
+    |  b <3
+    |
+    |7:  // Grow stack for varargs.
+    |  mr CARG1, L
+    |   stp RA, L->top
+    |  sub SAVE0, RC, BASE		// Need delta, because BASE may change.
+    |   stp BASE, L->base
+    |  sub RA, RA, BASE
+    |   stw PC, SAVE_PC
+    |  srwi CARG2, TMP1, 3
+    |  bl extern lj_state_growstack	// (lua_State *L, int n)
+    |  lp BASE, L->base
+    |  add RA, BASE, RA
+    |  add RC, BASE, SAVE0
+    |  subi TMP3, BASE, 8
+    |  b <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RD = extra_nresults*8
+    |  add RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
+    |  // Fall through. Assumes BC_RET follows.
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lwz PC, FRAME_PC(BASE)
+    |   add RA, BASE, RA
+    |    mr MULTRES, RD
+    |1:
+    |  andix. TMP0, PC, FRAME_TYPE
+    |   xori TMP1, PC, FRAME_VARG
+    |  bne ->BC_RETV_Z
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
+    |   lwz INS, -4(PC)
+    |  cmpwi RD, 8
+    |   subi TMP2, BASE, 8
+    |   subi RC, RD, 8
+    |   decode_RB8 RB, INS
+    |  beq >3
+    |   li TMP1, 0
+    |2:
+    |  addi TMP3, TMP1, 8
+    |   lfdx f0, RA, TMP1
+    |  cmpw TMP3, RC
+    |   stfdx f0, TMP2, TMP1
+    |  beq >3
+    |  addi TMP1, TMP3, 8
+    |   lfdx f1, RA, TMP3
+    |  cmpw TMP1, RC
+    |   stfdx f1, TMP2, TMP3
+    |  bne <2
+    |3:
+    |5:
+    |  cmplw RB, RD
+    |   decode_RA8 RA, INS
+    |  bgt >6
+    |   sub BASE, TMP2, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  subi TMP1, RD, 8
+    |   addi RD, RD, 8
+    |  stwx TISNIL, TMP2, TMP1
+    |  b <5
+    |
+    |->BC_RETV_Z:  // Non-standard return case.
+    |  andix. TMP2, TMP1, FRAME_TYPEP
+    |  bne ->vm_return
+    |  // Return from vararg function: relocate BASE down.
+    |  sub BASE, BASE, TMP1
+    |  lwz PC, FRAME_PC(BASE)
+    |  b <1
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lwz PC, FRAME_PC(BASE)
+    |   add RA, BASE, RA
+    |    mr MULTRES, RD
+    |  andix. TMP0, PC, FRAME_TYPE
+    |   xori TMP1, PC, FRAME_VARG
+    |  bney ->BC_RETV_Z
+    |
+    |  lwz INS, -4(PC)
+    |   subi TMP2, BASE, 8
+    |  decode_RB8 RB, INS
+    if (op == BC_RET1) {
+      |  lfd f0, 0(RA)
+      |  stfd f0, 0(TMP2)
+    }
+    |5:
+    |  cmplw RB, RD
+    |   decode_RA8 RA, INS
+    |  bgt >6
+    |   sub BASE, TMP2, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  subi TMP1, RD, 8
+    |   addi RD, RD, 8
+    |  stwx TISNIL, TMP2, TMP1
+    |  b <5
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RD = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |.if DUALNUM
+    |  // Integer loop.
+    |  lwzux TMP1, RA, BASE
+    |   lwz CARG1, FORL_IDX*8+4(RA)
+    |  cmplw cr0, TMP1, TISNUM
+    if (vk) {
+      |   lwz CARG3, FORL_STEP*8+4(RA)
+      |  bne >9
+      |.if GPR64
+      |  // Need to check overflow for (a<<32) + (b<<32).
+      |  rldicr TMP0, CARG1, 32, 31
+      |  rldicr TMP2, CARG3, 32, 31
+      |  add CARG1, CARG1, CARG3
+      |  addo. TMP0, TMP0, TMP2
+      |.else
+      |  addo. CARG1, CARG1, CARG3
+      |.endif
+      |    cmpwi cr6, CARG3, 0
+      |   lwz CARG2, FORL_STOP*8+4(RA)
+      |  bso >6
+      |4:
+      |  stw CARG1, FORL_IDX*8+4(RA)
+    } else {
+      |  lwz TMP3, FORL_STEP*8(RA)
+      |   lwz CARG3, FORL_STEP*8+4(RA)
+      |  lwz TMP2, FORL_STOP*8(RA)
+      |   lwz CARG2, FORL_STOP*8+4(RA)
+      |  cmplw cr7, TMP3, TISNUM
+      |  cmplw cr1, TMP2, TISNUM
+      |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+eq
+      |  crand 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+      |    cmpwi cr6, CARG3, 0
+      |  bne >9
+    }
+    |    blt cr6, >5
+    |  cmpw CARG1, CARG2
+    |1:
+    |   stw TISNUM, FORL_EXT*8(RA)
+    if (op != BC_JFORL) {
+      |  srwi RD, RD, 1
+    }
+    |   stw CARG1, FORL_EXT*8+4(RA)
+    if (op != BC_JFORL) {
+      |  add RD, PC, RD
+    }
+    if (op == BC_FORI) {
+      |  bgt >3  // See FP loop below.
+    } else if (op == BC_JFORI) {
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+      |  bley >7
+    } else if (op == BC_IFORL) {
+      |  bgt >2
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    } else {
+      |  bley =>BC_JLOOP
+    }
+    |2:
+    |  ins_next
+    |5:  // Invert check for negative step.
+    |  cmpw CARG2, CARG1
+    |  b <1
+    if (vk) {
+      |6:  // Potential overflow.
+      |  mcrxr cr0; bley <4		// Ignore unrelated overflow.
+      |  b <2
+    }
+    |.endif
+    if (vk) {
+      |.if DUALNUM
+      |9:  // FP loop.
+      |  lfd f1, FORL_IDX*8(RA)
+      |.else
+      |  lfdux f1, RA, BASE
+      |.endif
+      |  lfd f3, FORL_STEP*8(RA)
+      |  lfd f2, FORL_STOP*8(RA)
+      |   lwz TMP3, FORL_STEP*8(RA)
+      |  fadd f1, f1, f3
+      |  stfd f1, FORL_IDX*8(RA)
+    } else {
+      |.if DUALNUM
+      |9:  // FP loop.
+      |.else
+      |  lwzux TMP1, RA, BASE
+      |  lwz TMP3, FORL_STEP*8(RA)
+      |  lwz TMP2, FORL_STOP*8(RA)
+      |  cmplw cr0, TMP1, TISNUM
+      |  cmplw cr7, TMP3, TISNUM
+      |  cmplw cr1, TMP2, TISNUM
+      |.endif
+      |   lfd f1, FORL_IDX*8(RA)
+      |  crand 4*cr0+lt, 4*cr0+lt, 4*cr7+lt
+      |  crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+      |   lfd f2, FORL_STOP*8(RA)
+      |  bge ->vmeta_for
+    }
+    |  cmpwi cr6, TMP3, 0
+    if (op != BC_JFORL) {
+      |  srwi RD, RD, 1
+    }
+    |   stfd f1, FORL_EXT*8(RA)
+    if (op != BC_JFORL) {
+      |  add RD, PC, RD
+    }
+    |  fcmpu cr0, f1, f2
+    if (op == BC_JFORI) {
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    }
+    |  blt cr6, >5
+    if (op == BC_FORI) {
+      |  bgt >3
+    } else if (op == BC_IFORL) {
+      |.if DUALNUM
+      |  bgty <2
+      |.else
+      |  bgt >2
+      |.endif
+      |1:
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    } else if (op == BC_JFORI) {
+      |  bley >7
+    } else {
+      |  bley =>BC_JLOOP
+    }
+    |.if DUALNUM
+    |  b <2
+    |.else
+    |2:
+    |  ins_next
+    |.endif
+    |5:  // Negative step.
+    if (op == BC_FORI) {
+      |  bge <2
+      |3:  // Used by integer loop, too.
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    } else if (op == BC_IFORL) {
+      |  bgey <1
+    } else if (op == BC_JFORI) {
+      |  bgey >7
+    } else {
+      |  bgey =>BC_JLOOP
+    }
+    |  b <2
+    if (op == BC_JFORI) {
+      |7:
+      |  lwz INS, -4(PC)
+      |  decode_RD8 RD, INS
+      |  b =>BC_JLOOP
+    }
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RD = target
+    |  lwzux TMP1, RA, BASE
+    |   lwz TMP2, 4(RA)
+    |  checknil TMP1; beq >1		// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  stw TMP1, -8(RA)
+      |   stw TMP2, -4(RA)
+      |  b =>BC_JLOOP
+    } else {
+      |  branch_RD			// Otherwise save control var + branch.
+      |  stw TMP1, -8(RA)
+      |   stw TMP2, -4(RA)
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base*8 (ignored), RD = traceno*8
+    |  lwz TMP1, DISPATCH_J(trace)(DISPATCH)
+    |  srwi RD, RD, 1
+    |  // Traces on PPC don't store the trace number, so use 0.
+    |   stw ZERO, DISPATCH_GL(vmstate)(DISPATCH)
+    |  lwzx TRACE:TMP2, TMP1, RD
+    |  mcrxr cr0			// Clear SO flag.
+    |  lp TMP2, TRACE:TMP2->mcode
+    |   stw BASE, DISPATCH_GL(jit_base)(DISPATCH)
+    |  mtctr TMP2
+    |   stw L, DISPATCH_GL(jit_L)(DISPATCH)
+    |   addi JGL, DISPATCH, GG_DISP2G+32768
+    |  bctr
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RD = target
+    |  branch_RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lwz TMP2, L->maxstack
+    |   lbz TMP1, -4+PC2PROTO(numparams)(PC)
+    |    lwz KBASE, -4+PC2PROTO(k)(PC)
+    |  cmplw RA, TMP2
+    |   slwi TMP1, TMP1, 3
+    |  bgt ->vm_growstack_l
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+    }
+    |2:
+    |  cmplw NARGS8:RC, TMP1		// Check for missing parameters.
+    |  blt >3
+    if (op == BC_JFUNCF) {
+      |  decode_RD8 RD, INS
+      |  b =>BC_JLOOP
+    } else {
+      |  ins_next2
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  stwx TISNIL, BASE, NARGS8:RC
+    |  addi NARGS8:RC, NARGS8:RC, 8
+    |  b <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lwz TMP2, L->maxstack
+    |   add TMP1, BASE, RC
+    |  add TMP0, RA, RC
+    |   stw LFUNC:RB, 4(TMP1)		// Store copy of LFUNC.
+    |   addi TMP3, RC, 8+FRAME_VARG
+    |    lwz KBASE, -4+PC2PROTO(k)(PC)
+    |  cmplw TMP0, TMP2
+    |   stw TMP3, 0(TMP1)		// Store delta + FRAME_VARG.
+    |  bge ->vm_growstack_l
+    |  lbz TMP2, -4+PC2PROTO(numparams)(PC)
+    |   mr RA, BASE
+    |   mr RC, TMP1
+    |  ins_next1
+    |  cmpwi TMP2, 0
+    |   addi BASE, TMP1, 8
+    |  beq >3
+    |1:
+    |  cmplw RA, RC			// Less args than parameters?
+    |   lwz TMP0, 0(RA)
+    |   lwz TMP3, 4(RA)
+    |  bge >4
+    |    stw TISNIL, 0(RA)		// Clear old fixarg slot (help the GC).
+    |    addi RA, RA, 8
+    |2:
+    |  addic. TMP2, TMP2, -1
+    |   stw TMP0, 8(TMP1)
+    |   stw TMP3, 12(TMP1)
+    |    addi TMP1, TMP1, 8
+    |  bne <1
+    |3:
+    |  ins_next2
+    |
+    |4:  // Clear missing parameters.
+    |  li TMP0, LJ_TNIL
+    |  b <2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  lp RD, CFUNC:RB->f
+    } else {
+      |  lp RD, DISPATCH_GL(wrapf)(DISPATCH)
+    }
+    |   add TMP1, RA, NARGS8:RC
+    |   lwz TMP2, L->maxstack
+    |  .toc lp TMP3, 0(RD)
+    |    add RC, BASE, NARGS8:RC
+    |   stp BASE, L->base
+    |   cmplw TMP1, TMP2
+    |    stp RC, L->top
+    |     li_vmstate C
+    |.if TOC
+    |  mtctr TMP3
+    |.else
+    |  mtctr RD
+    |.endif
+    if (op == BC_FUNCCW) {
+      |  lp CARG2, CFUNC:RB->f
+    }
+    |  mr CARG1, L
+    |   bgt ->vm_growstack_c		// Need to grow stack.
+    |  .toc lp TOCREG, TOC_OFS(RD)
+    |  .tocenv lp ENVREG, ENV_OFS(RD)
+    |     st_vmstate
+    |  bctrl				// (lua_State *L [, lua_CFunction f])
+    |  // Returns nresults.
+    |  lp BASE, L->base
+    |  .toc ld TOCREG, SAVE_TOC
+    |   slwi RD, CRET1, 3
+    |  lp TMP1, L->top
+    |    li_vmstate INTERP
+    |  lwz PC, FRAME_PC(BASE)		// Fetch PC of caller.
+    |   sub RA, TMP1, RD		// RA = L->top - nresults*8
+    |    st_vmstate
+    |  b ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x5\n\t.uleb128 70\n\t.uleb128 55\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 14; i <= 31; i++)
+      fprintf(ctx->fp,
+	"\t.byte %d\n\t.uleb128 %d\n"
+	"\t.byte %d\n\t.uleb128 %d\n",
+	0x80+i, 37+(31-i), 0x80+32+i, 2+2*(31-i));
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+#if LJ_TARGET_PS3
+	"\t.long .lj_vm_ffi_call\n"
+#else
+	"\t.long lj_vm_ffi_call\n"
+#endif
+	"\t.long %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x8e\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0xe\n"
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.long .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.long .LASFDE2-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x5\n\t.uleb128 70\n\t.uleb128 55\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 14; i <= 31; i++)
+      fprintf(ctx->fp,
+	"\t.byte %d\n\t.uleb128 %d\n"
+	"\t.byte %d\n\t.uleb128 %d\n",
+	0x80+i, 37+(31-i), 0x80+32+i, 2+2*(31-i));
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE2:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.long .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.long .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.long .LASFDE3-.Lframe2\n"
+	"\t.long lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x8e\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0xe\n"
+	"\t.align 2\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/lib/luajit/src/vm_ppcspe.dasc b/lib/luajit/src/vm_ppcspe.dasc
new file mode 100644
index 00000000..adcec244
--- /dev/null
+++ b/lib/luajit/src/vm_ppcspe.dasc
@@ -0,0 +1,3691 @@
+|// Low-level VM code for PowerPC/e500 CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch ppc
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|// Don't use: r1 = sp, r2 and r13 = reserved and/or small data area ptr
+|
+|// The following must be C callee-save (but BASE is often refetched).
+|.define BASE,		r14	// Base of current Lua stack frame.
+|.define KBASE,		r15	// Constants of current Lua function.
+|.define PC,		r16	// Next PC.
+|.define DISPATCH,	r17	// Opcode dispatch table.
+|.define LREG,		r18	// Register holding lua_State (also in SAVE_L).
+|.define MULTRES,	r19	// Size of multi-result: (nresults+1)*8.
+|
+|// Constants for vectorized type-comparisons (hi+low GPR). C callee-save.
+|.define TISNUM,	r22
+|.define TISSTR,	r23
+|.define TISTAB,	r24
+|.define TISFUNC,	r25
+|.define TISNIL,	r26
+|.define TOBIT,		r27
+|.define ZERO,		TOBIT	// Zero in lo word.
+|
+|// The following temporaries are not saved across C calls, except for RA.
+|.define RA,		r20	// Callee-save.
+|.define RB,		r10
+|.define RC,		r11
+|.define RD,		r12
+|.define INS,		r7	// Overlaps CARG5.
+|
+|.define TMP0,		r0
+|.define TMP1,		r8
+|.define TMP2,		r9
+|.define TMP3,		r6	// Overlaps CARG4.
+|
+|// Saved temporaries.
+|.define SAVE0,		r21
+|
+|// Calling conventions.
+|.define CARG1,		r3
+|.define CARG2,		r4
+|.define CARG3,		r5
+|.define CARG4,		r6	// Overlaps TMP3.
+|.define CARG5,		r7	// Overlaps INS.
+|
+|.define CRET1,		r3
+|.define CRET2,		r4
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.define SAVE_LR,	188(sp)
+|.define CFRAME_SPACE,	184	// Delta for sp.
+|// Back chain for sp:	184(sp)	<-- sp entering interpreter
+|.define SAVE_r31,	176(sp)	// 64 bit register saves.
+|.define SAVE_r30,	168(sp)
+|.define SAVE_r29,	160(sp)
+|.define SAVE_r28,	152(sp)
+|.define SAVE_r27,	144(sp)
+|.define SAVE_r26,	136(sp)
+|.define SAVE_r25,	128(sp)
+|.define SAVE_r24,	120(sp)
+|.define SAVE_r23,	112(sp)
+|.define SAVE_r22,	104(sp)
+|.define SAVE_r21,	96(sp)
+|.define SAVE_r20,	88(sp)
+|.define SAVE_r19,	80(sp)
+|.define SAVE_r18,	72(sp)
+|.define SAVE_r17,	64(sp)
+|.define SAVE_r16,	56(sp)
+|.define SAVE_r15,	48(sp)
+|.define SAVE_r14,	40(sp)
+|.define SAVE_CR,	36(sp)
+|.define UNUSED1,	32(sp)
+|.define SAVE_ERRF,	28(sp)	// 32 bit C frame info.
+|.define SAVE_NRES,	24(sp)
+|.define SAVE_CFRAME,	20(sp)
+|.define SAVE_L,	16(sp)
+|.define SAVE_PC,	12(sp)
+|.define SAVE_MULTRES,	8(sp)
+|// Next frame lr:	4(sp)
+|// Back chain for sp:	0(sp)	<-- sp while in interpreter
+|
+|.macro save_, reg; evstdd reg, SAVE_..reg; .endmacro
+|.macro rest_, reg; evldd reg, SAVE_..reg; .endmacro
+|
+|.macro saveregs
+|  stwu sp, -CFRAME_SPACE(sp)
+|  save_ r14; save_ r15; save_ r16; save_ r17; save_ r18; save_ r19
+|  mflr r0; mfcr r12
+|  save_ r20; save_ r21; save_ r22; save_ r23; save_ r24; save_ r25
+|  stw  r0, SAVE_LR; stw r12, SAVE_CR
+|  save_ r26; save_ r27; save_ r28; save_ r29; save_ r30; save_ r31
+|.endmacro
+|
+|.macro restoreregs
+|  lwz r0, SAVE_LR; lwz r12, SAVE_CR
+|  rest_ r14; rest_ r15; rest_ r16; rest_ r17; rest_ r18; rest_ r19
+|  mtlr r0; mtcrf 0x38, r12
+|  rest_ r20; rest_ r21; rest_ r22; rest_ r23; rest_ r24; rest_ r25
+|  rest_ r26; rest_ r27; rest_ r28; rest_ r29; rest_ r30; rest_ r31
+|  addi sp, sp, CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|
+|//-----------------------------------------------------------------------
+|
+|// These basic macros should really be part of DynASM.
+|.macro srwi, rx, ry, n; rlwinm rx, ry, 32-n, n, 31; .endmacro
+|.macro slwi, rx, ry, n; rlwinm rx, ry, n, 0, 31-n; .endmacro
+|.macro rotlwi, rx, ry, n; rlwinm rx, ry, n, 0, 31; .endmacro
+|.macro rotlw, rx, ry, rn; rlwnm rx, ry, rn, 0, 31; .endmacro
+|.macro subi, rx, ry, i; addi rx, ry, -i; .endmacro
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; tw 4, sp, sp; .endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Access to frame relative to BASE.
+|.define FRAME_PC,	-8
+|.define FRAME_FUNC,	-4
+|
+|// Instruction decode.
+|.macro decode_OP4, dst, ins; rlwinm dst, ins, 2, 22, 29; .endmacro
+|.macro decode_RA8, dst, ins; rlwinm dst, ins, 27, 21, 28; .endmacro
+|.macro decode_RB8, dst, ins; rlwinm dst, ins, 11, 21, 28; .endmacro
+|.macro decode_RC8, dst, ins; rlwinm dst, ins, 19, 21, 28; .endmacro
+|.macro decode_RD8, dst, ins; rlwinm dst, ins, 19, 13, 28; .endmacro
+|
+|.macro decode_OP1, dst, ins; rlwinm dst, ins, 0, 24, 31; .endmacro
+|.macro decode_RD4, dst, ins; rlwinm dst, ins, 18, 14, 29; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  lwz INS, 0(PC)
+|   addi PC, PC, 4
+|.endmacro
+|// Instruction decode+dispatch.
+|.macro ins_NEXT2
+|  decode_OP4 TMP1, INS
+|   decode_RB8 RB, INS
+|   decode_RD8 RD, INS
+|  lwzx TMP0, DISPATCH, TMP1
+|   decode_RA8 RA, INS
+|   decode_RC8 RC, INS
+|  mtctr TMP0
+|  bctr
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  lwz PC, LFUNC:RB->pc
+|  lwz INS, 0(PC)
+|   addi PC, PC, 4
+|  decode_OP4 TMP1, INS
+|   decode_RA8 RA, INS
+|  lwzx TMP0, DISPATCH, TMP1
+|   add RA, RA, BASE
+|  mtctr TMP0
+|  bctr
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  stw PC, FRAME_PC(BASE)
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checknum, reg; evcmpltu reg, TISNUM; .endmacro
+|.macro checkstr, reg; evcmpeq reg, TISSTR; .endmacro
+|.macro checktab, reg; evcmpeq reg, TISTAB; .endmacro
+|.macro checkfunc, reg; evcmpeq reg, TISFUNC; .endmacro
+|.macro checknil, reg; evcmpeq reg, TISNIL; .endmacro
+|.macro checkok, label; blt label; .endmacro
+|.macro checkfail, label; bge label; .endmacro
+|.macro checkanyfail, label; bns label; .endmacro
+|.macro checkallok, label; bso label; .endmacro
+|
+|.macro branch_RD
+|  srwi TMP0, RD, 1
+|  add PC, PC, TMP0
+|  addis PC, PC, -(BCBIAS_J*4 >> 16)
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro hotloop
+|  NYI
+|.endmacro
+|
+|.macro hotcall
+|  NYI
+|.endmacro
+|
+|// Set current VM state. Uses TMP0.
+|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
+|.macro st_vmstate; stw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp
+|  lwz tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|  // Assumes LJ_GC_BLACK is 0x04.
+|   rlwinm mark, mark, 0, 30, 28		// black2gray(tab)
+|  stw tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   stb mark, tab->marked
+|  stw tmp, tab->gclist
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: TMP2 = previous base.
+  |  andi. TMP0, PC, FRAME_P
+  |   evsplati TMP1, LJ_TTRUE
+  |  beq ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  lwz PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
+  |  mr BASE, TMP2			// Restore caller base.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   stwu TMP1, FRAME_PC(RA)		// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  addi RD, RD, 8			// RD = (nresults+1)*8.
+  |   andi. TMP0, PC, FRAME_TYPE
+  |  cmpwi cr1, RD, 0
+  |  li CRET1, LUA_YIELD
+  |  beq cr1, ->vm_unwind_c_eh
+  |  mr MULTRES, RD
+  |   beq ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
+  |  // TMP0 = PC & FRAME_TYPE
+  |  cmpwi TMP0, FRAME_C
+  |   rlwinm TMP2, PC, 0, 0, 28
+  |    li_vmstate C
+  |   sub TMP2, BASE, TMP2		// TMP2 = previous base.
+  |  bne ->vm_returnp
+  |
+  |  addic. TMP1, RD, -8
+  |   stw TMP2, L->base
+  |   lwz TMP2, SAVE_NRES
+  |    subi BASE, BASE, 8
+  |    st_vmstate
+  |   slwi TMP2, TMP2, 3
+  |  beq >2
+  |1:
+  |  addic. TMP1, TMP1, -8
+  |   evldd TMP0, 0(RA)
+  |    addi RA, RA, 8
+  |   evstdd TMP0, 0(BASE)
+  |    addi BASE, BASE, 8
+  |  bne <1
+  |
+  |2:
+  |  cmpw TMP2, RD			// More/less results wanted?
+  |  bne >6
+  |3:
+  |  stw BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  lwz TMP0, SAVE_CFRAME		// Restore previous C frame.
+  |   li CRET1, 0			// Ok return status for vm_pcall.
+  |  stw TMP0, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  blr
+  |
+  |6:
+  |  ble >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  lwz TMP1, L->maxstack
+  |  cmplw BASE, TMP1
+  |  bge >8
+  |  evstdd TISNIL, 0(BASE)
+  |  addi RD, RD, 8
+  |  addi BASE, BASE, 8
+  |  b <2
+  |
+  |7:  // Less results wanted.
+  |   sub TMP0, RD, TMP2
+  |  cmpwi TMP2, 0			// LUA_MULTRET+1 case?
+  |   sub TMP0, BASE, TMP0		// Subtract the difference.
+  |  iseleq BASE, BASE, TMP0		// Either keep top or shrink it.
+  |  b <3
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  stw BASE, L->top			// Save current top held in BASE (yes).
+  |   mr SAVE0, RD
+  |  mr CARG2, TMP2
+  |  mr CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |    lwz TMP2, SAVE_NRES
+  |   mr RD, SAVE0
+  |    slwi TMP2, TMP2, 3
+  |  lwz BASE, L->top			// Need the (realloced) L->top in BASE.
+  |  b <2
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mr sp, CARG1
+  |  mr CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  lwz L, SAVE_L
+  |   li TMP0, ~LJ_VMST_C
+  |  lwz GL:TMP1, L->glref
+  |   stw TMP0, GL:TMP1->vmstate
+  |  b ->vm_leave_unw
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  rlwinm sp, CARG1, 0, 0, 29
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  lwz L, SAVE_L
+  |     evsplati TISNUM, LJ_TISNUM+1	// Setup type comparison constants.
+  |     evsplati TISFUNC, LJ_TFUNC
+  |     lus TOBIT, 0x4338
+  |     evsplati TISTAB, LJ_TTAB
+  |     li TMP0, 0
+  |  lwz BASE, L->base
+  |     evmergelo TOBIT, TOBIT, TMP0
+  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     evsplati TISSTR, LJ_TSTR
+  |  li TMP1, LJ_TFALSE
+  |     evsplati TISNIL, LJ_TNIL
+  |    li_vmstate INTERP
+  |  lwz PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
+  |  la RA, -8(BASE)			// Results start at BASE-8.
+  |   addi DISPATCH, DISPATCH, GG_G2DISP
+  |  stw TMP1, 0(RA)			// Prepend false to error message.
+  |  li RD, 16				// 2 results: false + error message.
+  |    st_vmstate
+  |  b ->vm_returnc
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  li CARG2, LUA_MINSTACK
+  |  b >2
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  add RC, BASE, RC
+  |   sub RA, RA, BASE
+  |  stw BASE, L->base
+  |   addi PC, PC, 4			// Must point after first instruction.
+  |  stw RC, L->top
+  |   srwi CARG2, RA, 3
+  |2:
+  |  // L->base = new base, L->top = top
+  |   stw PC, SAVE_PC
+  |  mr CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  lwz BASE, L->base
+  |  lwz RC, L->top
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  sub RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mr L, CARG1
+  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  mr BASE, CARG2
+  |    lbz TMP1, L->status
+  |   stw L, SAVE_L
+  |  li PC, FRAME_CP
+  |  addi TMP0, sp, CFRAME_RESUME
+  |    addi DISPATCH, DISPATCH, GG_G2DISP
+  |   stw CARG3, SAVE_NRES
+  |    cmplwi TMP1, 0
+  |   stw CARG3, SAVE_ERRF
+  |  stw TMP0, L->cframe
+  |   stw CARG3, SAVE_CFRAME
+  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |    beq >3
+  |
+  |  // Resume after yield (like a return).
+  |  mr RA, BASE
+  |   lwz BASE, L->base
+  |    evsplati TISNUM, LJ_TISNUM+1	// Setup type comparison constants.
+  |   lwz TMP1, L->top
+  |    evsplati TISFUNC, LJ_TFUNC
+  |    lus TOBIT, 0x4338
+  |    evsplati TISTAB, LJ_TTAB
+  |  lwz PC, FRAME_PC(BASE)
+  |    li TMP2, 0
+  |    evsplati TISSTR, LJ_TSTR
+  |   sub RD, TMP1, BASE
+  |    evmergelo TOBIT, TOBIT, TMP2
+  |    stb CARG3, L->status
+  |  andi. TMP0, PC, FRAME_TYPE
+  |    li_vmstate INTERP
+  |   addi RD, RD, 8
+  |    evsplati TISNIL, LJ_TNIL
+  |   mr MULTRES, RD
+  |    st_vmstate
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  li PC, FRAME_CP
+  |  stw CARG4, SAVE_ERRF
+  |  b >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  li PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  lwz TMP1, L:CARG1->cframe
+  |   stw CARG3, SAVE_NRES
+  |    mr L, CARG1
+  |   stw CARG1, SAVE_L
+  |    mr BASE, CARG2
+  |  stw sp, L->cframe			// Add our C frame to cframe chain.
+  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  stw TMP1, SAVE_CFRAME
+  |    addi DISPATCH, DISPATCH, GG_G2DISP
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  lwz TMP2, L->base			// TMP2 = old base (used in vmeta_call).
+  |    evsplati TISNUM, LJ_TISNUM+1	// Setup type comparison constants.
+  |   lwz TMP1, L->top
+  |    evsplati TISFUNC, LJ_TFUNC
+  |  add PC, PC, BASE
+  |    evsplati TISTAB, LJ_TTAB
+  |    lus TOBIT, 0x4338
+  |    li TMP0, 0
+  |  sub PC, PC, TMP2			// PC = frame delta + frame type
+  |    evsplati TISSTR, LJ_TSTR
+  |   sub NARGS8:RC, TMP1, BASE
+  |    evmergelo TOBIT, TOBIT, TMP0
+  |    li_vmstate INTERP
+  |    evsplati TISNIL, LJ_TNIL
+  |    st_vmstate
+  |
+  |->vm_call_dispatch:
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  li TMP0, -8
+  |  evlddx LFUNC:RB, BASE, TMP0
+  |  checkfunc LFUNC:RB
+  |  checkfail ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mr L, CARG1
+  |   lwz TMP0, L:CARG1->stack
+  |  stw CARG1, SAVE_L
+  |   lwz TMP1, L->top
+  |  stw CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   sub TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
+  |    lwz TMP1, L->cframe
+  |    stw sp, L->cframe		// Add our C frame to cframe chain.
+  |  li TMP2, 0
+  |   stw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  stw TMP2, SAVE_ERRF		// No error function.
+  |    stw TMP1, SAVE_CFRAME
+  |  mtctr CARG4
+  |  bctrl			// (lua_State *L, lua_CFunction func, void *ud)
+  |  mr. BASE, CRET1
+  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |    li PC, FRAME_CP
+  |   addi DISPATCH, DISPATCH, GG_G2DISP
+  |  bne <3				// Else continue with the call.
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
+  |// stack, so BASE doesn't need to be reloaded across these calls.
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
+  |  lwz TMP0, -12(BASE)		// Continuation.
+  |   mr RB, BASE
+  |   mr BASE, TMP2			// Restore caller BASE.
+  |    lwz LFUNC:TMP1, FRAME_FUNC(TMP2)
+  |  cmplwi TMP0, 0
+  |     lwz PC, -16(RB)			// Restore PC from [cont|PC].
+  |  beq >1
+  |   subi TMP2, RD, 8
+  |    lwz TMP1, LFUNC:TMP1->pc
+  |   evstddx TISNIL, RA, TMP2		// Ensure one valid arg.
+  |    lwz KBASE, PC2PROTO(k)(TMP1)
+  |  // BASE = base, RA = resultptr, RB = meta base
+  |  mtctr TMP0
+  |  bctr				// Jump to continuation.
+  |
+  |1:  // Tail call from C function.
+  |  subi TMP1, RB, 16
+  |  sub RC, TMP1, BASE
+  |  b ->vm_call_tail
+  |
+  |->cont_cat:				// RA = resultptr, RB = meta base
+  |  lwz INS, -4(PC)
+  |   subi CARG2, RB, 16
+  |  decode_RB8 SAVE0, INS
+  |   evldd TMP0, 0(RA)
+  |  add TMP1, BASE, SAVE0
+  |   stw BASE, L->base
+  |  cmplw TMP1, CARG2
+  |   sub CARG3, CARG2, TMP1
+  |  decode_RA8 RA, INS
+  |   evstdd TMP0, 0(CARG2)
+  |  bne ->BC_CAT_Z
+  |   evstddx TMP0, BASE, RA
+  |  b ->cont_nop
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  evmergelo STR:RC, TISSTR, STR:RC
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   decode_RB8 RB, INS
+  |  evstdd STR:RC, 0(CARG3)
+  |   add CARG2, BASE, RB
+  |  b >1
+  |
+  |->vmeta_tgets:
+  |  evmergelo TAB:RB, TISTAB, TAB:RB
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |   evmergelo STR:RC, TISSTR, STR:RC
+  |  evstdd TAB:RB, 0(CARG2)
+  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
+  |   evstdd STR:RC, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tgetb:			// TMP0 = index
+  |  efdcfsi TMP0, TMP0
+  |   decode_RB8 RB, INS
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   add CARG2, BASE, RB
+  |  evstdd TMP0, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tgetv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |  stw BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cmplwi CRET1, 0
+  |  beq >3
+  |  evldd TMP0, 0(CRET1)
+  |  evstddx TMP0, BASE, RA
+  |  ins_next
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  subfic TMP1, BASE, FRAME_CONT
+  |  lwz BASE, L->top
+  |  stw PC, -16(BASE)			// [cont|PC]
+  |   add PC, TMP1, BASE
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   li NARGS8:RC, 16			// 2 args for func(t, k).
+  |  b ->vm_call_dispatch_f
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  evmergelo STR:RC, TISSTR, STR:RC
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   decode_RB8 RB, INS
+  |  evstdd STR:RC, 0(CARG3)
+  |   add CARG2, BASE, RB
+  |  b >1
+  |
+  |->vmeta_tsets:
+  |  evmergelo TAB:RB, TISTAB, TAB:RB
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |   evmergelo STR:RC, TISSTR, STR:RC
+  |  evstdd TAB:RB, 0(CARG2)
+  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
+  |   evstdd STR:RC, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tsetb:			// TMP0 = index
+  |  efdcfsi TMP0, TMP0
+  |   decode_RB8 RB, INS
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   add CARG2, BASE, RB
+  |  evstdd TMP0, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tsetv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |  stw BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cmplwi CRET1, 0
+  |   evlddx TMP0, BASE, RA
+  |  beq >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |   evstdd TMP0, 0(CRET1)
+  |  ins_next
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  subfic TMP1, BASE, FRAME_CONT
+  |  lwz BASE, L->top
+  |  stw PC, -16(BASE)			// [cont|PC]
+  |   add PC, TMP1, BASE
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   li NARGS8:RC, 24			// 3 args for func(t, k, v)
+  |  evstdd TMP0, 16(BASE)		// Copy value to third argument.
+  |  b ->vm_call_dispatch_f
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  mr CARG1, L
+  |   subi PC, PC, 4
+  |  add CARG2, BASE, RA
+  |   stw PC, SAVE_PC
+  |  add CARG3, BASE, RD
+  |   stw BASE, L->base
+  |  decode_OP1 CARG4, INS
+  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  cmplwi CRET1, 1
+  |  bgt ->vmeta_binop
+  |4:
+  |  lwz INS, 0(PC)
+  |   addi PC, PC, 4
+  |  decode_RD4 TMP2, INS
+  |  addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+  |  add TMP2, TMP2, TMP3
+  |  isellt PC, PC, TMP2
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  lwz INS, -4(PC)
+  |   evldd TMP0, 0(RA)
+  |  decode_RA8 TMP1, INS
+  |   evstddx TMP0, BASE, TMP1
+  |  b ->cont_nop
+  |
+  |->cont_condt:			// RA = resultptr
+  |  lwz TMP0, 0(RA)
+  |   li TMP1, LJ_TTRUE
+  |  cmplw TMP1, TMP0			// Branch if result is true.
+  |  b <4
+  |
+  |->cont_condf:			// RA = resultptr
+  |  lwz TMP0, 0(RA)
+  |   li TMP1, LJ_TFALSE
+  |  cmplw TMP0, TMP1			// Branch if result is false.
+  |  b <4
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  subi PC, PC, 4
+  |   stw BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vn:
+  |  add CARG3, BASE, RB
+  |  add CARG4, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_nv:
+  |  add CARG3, KBASE, RC
+  |  add CARG4, BASE, RB
+  |  b >1
+  |
+  |->vmeta_unm:
+  |  add CARG3, BASE, RD
+  |  mr CARG4, CARG3
+  |  b >1
+  |
+  |->vmeta_arith_vv:
+  |  add CARG3, BASE, RB
+  |  add CARG4, BASE, RC
+  |1:
+  |  add CARG2, BASE, RA
+  |   stw BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  decode_OP1 CARG5, INS		// Caveat: CARG5 overlaps INS.
+  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  cmplwi CRET1, 0
+  |  beq ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  sub TMP1, CRET1, BASE
+  |   stw PC, -16(CRET1)		// [cont|PC]
+  |   mr TMP2, BASE
+  |  addi PC, TMP1, FRAME_CONT
+  |   mr BASE, CRET1
+  |  li NARGS8:RC, 16			// 2 args for func(o1, o2).
+  |  b ->vm_call_dispatch
+  |
+  |->vmeta_len:
+#if LJ_52
+  |  mr SAVE0, CARG1
+#endif
+  |  add CARG2, BASE, RD
+  |   stw BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  cmplwi CRET1, 0
+  |  bne ->vmeta_binop			// Binop call for compatibility.
+  |  mr CARG1, SAVE0
+  |  b ->BC_LEN_Z
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8
+  |  mr CARG1, L
+  |   stw TMP2, L->base			// This is the callers base!
+  |  subi CARG2, BASE, 8
+  |   stw PC, SAVE_PC
+  |  add CARG3, BASE, RC
+  |   mr SAVE0, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  mr CARG1, L
+  |   stw BASE, L->base
+  |  subi CARG2, RA, 8
+  |   stw PC, SAVE_PC
+  |  add CARG3, RA, RC
+  |   mr SAVE0, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  lwz TMP1, FRAME_PC(BASE)
+  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
+  |   lwz LFUNC:RB, FRAME_FUNC(RA)	// Guaranteed to be a function here.
+  |  b ->BC_CALLT_Z
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mr CARG1, L
+  |   stw BASE, L->base
+  |  mr CARG2, RA
+  |   stw PC, SAVE_PC
+  |  mr SAVE0, INS
+  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
+  |.if JIT
+  |   decode_OP1 TMP0, SAVE0
+  |.endif
+  |  decode_RA8 RA, SAVE0
+  |.if JIT
+  |   cmpwi TMP0, BC_JFORI
+  |.endif
+  |  decode_RD8 RD, SAVE0
+  |.if JIT
+  |   beq =>BC_JFORI
+  |.endif
+  |  b =>BC_FORI
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 16
+  |   evldd CARG1, 0(BASE)
+  |   evldd CARG2, 8(BASE)
+  |  blt ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |  .ffunc_1 name
+  |  checknum CARG1
+  |  checkfail ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |  .ffunc_2 name
+  |  evmergehi TMP0, CARG1, CARG2
+  |  checknum TMP0
+  |  checkanyfail ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1.
+  |.macro ffgccheck
+  |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+  |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+  |  cmplw TMP0, TMP1
+  |  bgel ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc assert
+  |  cmplwi NARGS8:RC, 8
+  |   evldd TMP0, 0(BASE)
+  |  blt ->fff_fallback
+  |  evaddw TMP1, TISNIL, TISNIL	// Synthesize LJ_TFALSE.
+  |  la RA, -8(BASE)
+  |   evcmpltu cr1, TMP0, TMP1
+  |    lwz PC, FRAME_PC(BASE)
+  |  bge cr1, ->fff_fallback
+  |   evstdd TMP0, 0(RA)
+  |  addi RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
+  |   beq ->fff_res			// Done if exactly 1 argument.
+  |  li TMP1, 8
+  |  subi RC, RC, 8
+  |1:
+  |  cmplw TMP1, RC
+  |   evlddx TMP0, BASE, TMP1
+  |   evstddx TMP0, RA, TMP1
+  |    addi TMP1, TMP1, 8
+  |  bne <1
+  |  b ->fff_res
+  |
+  |.ffunc type
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |    li TMP2, ~LJ_TNUMX
+  |  cmplw CARG1, TISNUM
+  |  not TMP1, CARG1
+  |  isellt TMP1, TMP2, TMP1
+  |  slwi TMP1, TMP1, 3
+  |   la TMP2, CFUNC:RB->upvalue
+  |  evlddx STR:CRET1, TMP2, TMP1
+  |  b ->fff_restv
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  checktab CARG1
+  |   evmergehi TMP1, CARG1, CARG1
+  |  checkfail >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  lwz TAB:RB, TAB:CARG1->metatable
+  |2:
+  |  evmr CRET1, TISNIL
+  |   cmplwi TAB:RB, 0
+  |  lwz STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
+  |   beq ->fff_restv
+  |  lwz TMP0, TAB:RB->hmask
+  |   evmergelo CRET1, TISTAB, TAB:RB	// Use metatable as default result.
+  |  lwz TMP1, STR:RC->hash
+  |  lwz NODE:TMP2, TAB:RB->node
+  |   evmergelo STR:RC, TISSTR, STR:RC
+  |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+  |  slwi TMP0, TMP1, 5
+  |  slwi TMP1, TMP1, 3
+  |  sub TMP1, TMP0, TMP1
+  |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  evldd TMP0, NODE:TMP2->key
+  |   evldd TMP1, NODE:TMP2->val
+  |  evcmpeq TMP0, STR:RC
+  |   lwz NODE:TMP2, NODE:TMP2->next
+  |  checkallok >5
+  |   cmplwi NODE:TMP2, 0
+  |   beq ->fff_restv			// Not found, keep default result.
+  |   b <3
+  |5:
+  |  checknil TMP1
+  |  checkok ->fff_restv		// Ditto for nil value.
+  |  evmr CRET1, TMP1			// Return value of mt.__metatable.
+  |  b ->fff_restv
+  |
+  |6:
+  |  cmpwi TMP1, LJ_TUDATA
+  |   not TMP1, TMP1
+  |  beq <1
+  |  checknum CARG1
+  |   slwi TMP1, TMP1, 2
+  |   li TMP2, 4*~LJ_TNUMX
+  |  isellt TMP1, TMP2, TMP1
+  |   la TMP2, DISPATCH_GL(gcroot[GCROOT_BASEMT])(DISPATCH)
+  |  lwzx TAB:RB, TMP2, TMP1
+  |  b <2
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  evmergehi TMP0, TAB:CARG1, TAB:CARG2
+  |  checktab TMP0
+  |  checkanyfail ->fff_fallback
+  |  lwz TAB:TMP1, TAB:CARG1->metatable
+  |  cmplwi TAB:TMP1, 0
+  |   lbz TMP3, TAB:CARG1->marked
+  |  bne ->fff_fallback
+  |   andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+  |    stw TAB:CARG2, TAB:CARG1->metatable
+  |   beq ->fff_restv
+  |  barrierback TAB:CARG1, TMP3, TMP0
+  |  b ->fff_restv
+  |
+  |.ffunc rawget
+  |  cmplwi NARGS8:RC, 16
+  |   evldd CARG2, 0(BASE)
+  |  blt ->fff_fallback
+  |  checktab CARG2
+  |   la CARG3, 8(BASE)
+  |  checkfail ->fff_fallback
+  |   mr CARG1, L
+  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
+  |  // Returns cTValue *.
+  |  evldd CRET1, 0(CRET1)
+  |  b ->fff_restv
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG1, 0(BASE)
+  |  bne ->fff_fallback			// Exactly one argument.
+  |  checknum CARG1
+  |  checkok ->fff_restv
+  |  b ->fff_fallback
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  checkstr CARG1
+  |  // A __tostring method in the string base metatable is ignored.
+  |  checkok ->fff_restv		// String key?
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |  lwz TMP0, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
+  |  checknum CARG1
+  |  cmplwi cr1, TMP0, 0
+  |   stw BASE, L->base			// Add frame since C call can throw.
+  |  crand 4*cr0+eq, 4*cr0+lt, 4*cr1+eq
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  bne ->fff_fallback
+  |  ffgccheck
+  |  mr CARG1, L
+  |  mr CARG2, BASE
+  |  bl extern lj_str_fromnum		// (lua_State *L, lua_Number *np)
+  |  // Returns GCstr *.
+  |  evmergelo STR:CRET1, TISSTR, STR:CRET1
+  |  b ->fff_restv
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc next
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG2, 0(BASE)
+  |  blt ->fff_fallback
+  |   evstddx TISNIL, BASE, NARGS8:RC	// Set missing 2nd arg to nil.
+  |  checktab TAB:CARG2
+  |   lwz PC, FRAME_PC(BASE)
+  |  checkfail ->fff_fallback
+  |   stw BASE, L->base			// Add frame since C call can throw.
+  |  mr CARG1, L
+  |   stw BASE, L->top			// Dummy frame length is ok.
+  |  la CARG3, 8(BASE)
+  |   stw PC, SAVE_PC
+  |  bl extern lj_tab_next	// (lua_State *L, GCtab *t, TValue *key)
+  |  // Returns 0 at end of traversal.
+  |  cmplwi CRET1, 0
+  |   evmr CRET1, TISNIL
+  |  beq ->fff_restv			// End of traversal: return nil.
+  |  evldd TMP0, 8(BASE)		// Copy key and value to results.
+  |   la RA, -8(BASE)
+  |  evldd TMP1, 16(BASE)
+  |  evstdd TMP0, 0(RA)
+  |   li RD, (2+1)*8
+  |  evstdd TMP1, 8(RA)
+  |  b ->fff_res
+  |
+  |.ffunc_1 pairs
+  |  checktab TAB:CARG1
+  |   lwz PC, FRAME_PC(BASE)
+  |  checkfail ->fff_fallback
+#if LJ_52
+  |   lwz TAB:TMP2, TAB:CARG1->metatable
+  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
+  |   cmplwi TAB:TMP2, 0
+  |  la RA, -8(BASE)
+  |   bne ->fff_fallback
+#else
+  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
+  |  la RA, -8(BASE)
+#endif
+  |   evstdd TISNIL, 8(BASE)
+  |  li RD, (3+1)*8
+  |  evstdd CFUNC:TMP0, 0(RA)
+  |  b ->fff_res
+  |
+  |.ffunc_2 ipairs_aux
+  |  checktab TAB:CARG1
+  |   lwz PC, FRAME_PC(BASE)
+  |  checkfail ->fff_fallback
+  |  checknum CARG2
+  |    lus TMP3, 0x3ff0
+  |  checkfail ->fff_fallback
+  |  efdctsi TMP2, CARG2
+  |   lwz TMP0, TAB:CARG1->asize
+  |    evmergelo TMP3, TMP3, ZERO
+  |   lwz TMP1, TAB:CARG1->array
+  |  efdadd CARG2, CARG2, TMP3
+  |  addi TMP2, TMP2, 1
+  |   la RA, -8(BASE)
+  |  cmplw TMP0, TMP2
+  |   slwi TMP3, TMP2, 3
+  |  evstdd CARG2, 0(RA)
+  |  ble >2				// Not in array part?
+  |  evlddx TMP1, TMP1, TMP3
+  |1:
+  |  checknil TMP1
+  |   li RD, (0+1)*8
+  |  checkok ->fff_res			// End of iteration, return 0 results.
+  |   li RD, (2+1)*8
+  |  evstdd TMP1, 8(RA)
+  |  b ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  lwz TMP0, TAB:CARG1->hmask
+  |  cmplwi TMP0, 0
+  |   li RD, (0+1)*8
+  |  beq ->fff_res
+  |   mr CARG2, TMP2
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  cmplwi CRET1, 0
+  |   li RD, (0+1)*8
+  |  beq ->fff_res
+  |  evldd TMP1, 0(CRET1)
+  |  b <1
+  |
+  |.ffunc_1 ipairs
+  |  checktab TAB:CARG1
+  |   lwz PC, FRAME_PC(BASE)
+  |  checkfail ->fff_fallback
+#if LJ_52
+  |   lwz TAB:TMP2, TAB:CARG1->metatable
+  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
+  |   cmplwi TAB:TMP2, 0
+  |  la RA, -8(BASE)
+  |   bne ->fff_fallback
+#else
+  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
+  |  la RA, -8(BASE)
+#endif
+  |    evsplati TMP1, 0
+  |  li RD, (3+1)*8
+  |    evstdd TMP1, 8(BASE)
+  |  evstdd CFUNC:TMP0, 0(RA)
+  |  b ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  cmplwi NARGS8:RC, 8
+  |   lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  blt ->fff_fallback
+  |   mr TMP2, BASE
+  |   la BASE, 8(BASE)
+  |  // Remember active hook before pcall.
+  |  rlwinm TMP3, TMP3, 32-HOOK_ACTIVE_SHIFT, 31, 31
+  |   subi NARGS8:RC, NARGS8:RC, 8
+  |  addi PC, TMP3, 8+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |
+  |.ffunc_2 xpcall
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |   mr TMP2, BASE
+  |  checkfunc CARG2			// Traceback must be a function.
+  |  checkfail ->fff_fallback
+  |   la BASE, 16(BASE)
+  |  // Remember active hook before pcall.
+  |  rlwinm TMP3, TMP3, 32-HOOK_ACTIVE_SHIFT, 31, 31
+  |   evstdd CARG2, 0(TMP2)		// Swap function and traceback.
+  |  subi NARGS8:RC, NARGS8:RC, 16
+  |   evstdd CARG1, 8(TMP2)
+  |  addi PC, TMP3, 16+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  evmergehi TMP0, L:CARG1, L:CARG1
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  lwz L:CARG1, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |.if resume
+  |  cmpwi TMP0, LJ_TTHREAD
+  |  bne ->fff_fallback
+  |.endif
+  |  lbz TMP0, L:CARG1->status
+  |   lwz TMP1, L:CARG1->cframe
+  |    lwz CARG2, L:CARG1->top
+  |  cmplwi cr0, TMP0, LUA_YIELD
+  |    lwz TMP2, L:CARG1->base
+  |   cmplwi cr1, TMP1, 0
+  |   lwz TMP0, L:CARG1->maxstack
+  |    cmplw cr7, CARG2, TMP2
+  |   lwz PC, FRAME_PC(BASE)
+  |  crorc 4*cr6+lt, 4*cr0+gt, 4*cr1+eq		// st>LUA_YIELD || cframe!=0
+  |   add TMP2, CARG2, NARGS8:RC
+  |  crandc 4*cr6+gt, 4*cr7+eq, 4*cr0+eq	// base==top && st!=LUA_YIELD
+  |   cmplw cr1, TMP2, TMP0
+  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr6+gt
+  |   stw PC, SAVE_PC
+  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr1+gt		// cond1 || cond2 || stackov
+  |   stw BASE, L->base
+  |  blt cr6, ->fff_fallback
+  |1:
+  |.if resume
+  |  addi BASE, BASE, 8			// Keep resumed thread in stack for GC.
+  |  subi NARGS8:RC, NARGS8:RC, 8
+  |  subi TMP2, TMP2, 8
+  |.endif
+  |  stw TMP2, L:CARG1->top
+  |  li TMP1, 0
+  |  stw BASE, L->top
+  |2:  // Move args to coroutine.
+  |  cmpw TMP1, NARGS8:RC
+  |   evlddx TMP0, BASE, TMP1
+  |  beq >3
+  |   evstddx TMP0, CARG2, TMP1
+  |  addi TMP1, TMP1, 8
+  |  b <2
+  |3:
+  |  li CARG3, 0
+  |   mr L:SAVE0, L:CARG1
+  |  li CARG4, 0
+  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  // Returns thread status.
+  |4:
+  |  lwz TMP2, L:SAVE0->base
+  |   cmplwi CRET1, LUA_YIELD
+  |  lwz TMP3, L:SAVE0->top
+  |    li_vmstate INTERP
+  |  lwz BASE, L->base
+  |    st_vmstate
+  |   bgt >8
+  |  sub RD, TMP3, TMP2
+  |   lwz TMP0, L->maxstack
+  |  cmplwi RD, 0
+  |   add TMP1, BASE, RD
+  |  beq >6				// No results?
+  |  cmplw TMP1, TMP0
+  |   li TMP1, 0
+  |  bgt >9				// Need to grow stack?
+  |
+  |  subi TMP3, RD, 8
+  |   stw TMP2, L:SAVE0->top		// Clear coroutine stack.
+  |5:  // Move results from coroutine.
+  |  cmplw TMP1, TMP3
+  |   evlddx TMP0, TMP2, TMP1
+  |   evstddx TMP0, BASE, TMP1
+  |    addi TMP1, TMP1, 8
+  |  bne <5
+  |6:
+  |  andi. TMP0, PC, FRAME_TYPE
+  |.if resume
+  |  li TMP1, LJ_TTRUE
+  |   la RA, -8(BASE)
+  |  stw TMP1, -8(BASE)			// Prepend true to results.
+  |  addi RD, RD, 16
+  |.else
+  |  mr RA, BASE
+  |  addi RD, RD, 8
+  |.endif
+  |7:
+  |    stw PC, SAVE_PC
+  |   mr MULTRES, RD
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  andi. TMP0, PC, FRAME_TYPE
+  |  la TMP3, -8(TMP3)
+  |   li TMP1, LJ_TFALSE
+  |  evldd TMP0, 0(TMP3)
+  |   stw TMP3, L:SAVE0->top		// Remove error from coroutine stack.
+  |    li RD, (2+1)*8
+  |   stw TMP1, -8(BASE)		// Prepend false to results.
+  |    la RA, -8(BASE)
+  |  evstdd TMP0, 0(BASE)		// Copy error message.
+  |  b <7
+  |.else
+  |  mr CARG1, L
+  |  mr CARG2, L:SAVE0
+  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mr CARG1, L
+  |  srwi CARG2, RD, 3
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  li CRET1, 0
+  |  b <4
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  lwz TMP0, L->cframe
+  |   add TMP1, BASE, NARGS8:RC
+  |   stw BASE, L->base
+  |  andi. TMP0, TMP0, CFRAME_RESUME
+  |   stw TMP1, L->top
+  |    li CRET1, LUA_YIELD
+  |  beq ->fff_fallback
+  |   stw ZERO, L->cframe
+  |    stb CRET1, L->status
+  |  b ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.ffunc_n math_abs
+  |  efdabs CRET1, CARG1
+  |  // Fallthrough.
+  |
+  |->fff_restv:
+  |  // CRET1 = TValue result.
+  |  lwz PC, FRAME_PC(BASE)
+  |   la RA, -8(BASE)
+  |  evstdd CRET1, 0(RA)
+  |->fff_res1:
+  |  // RA = results, PC = return.
+  |  li RD, (1+1)*8
+  |->fff_res:
+  |  // RA = results, RD = (nresults+1)*8, PC = return.
+  |  andi. TMP0, PC, FRAME_TYPE
+  |   mr MULTRES, RD
+  |  bne ->vm_return
+  |  lwz INS, -4(PC)
+  |  decode_RB8 RB, INS
+  |5:
+  |  cmplw RB, RD			// More results expected?
+  |   decode_RA8 TMP0, INS
+  |  bgt >6
+  |  ins_next1
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |   sub BASE, RA, TMP0
+  |  ins_next2
+  |
+  |6:  // Fill up results with nil.
+  |  subi TMP1, RD, 8
+  |   addi RD, RD, 8
+  |  evstddx TISNIL, RA, TMP1
+  |  b <5
+  |
+  |.macro math_extern, func
+  |  .ffunc math_ .. func
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG2, 0(BASE)
+  |  blt ->fff_fallback
+  |  checknum CARG2
+  |   evmergehi CARG1, CARG2, CARG2
+  |  checkfail ->fff_fallback
+  |  bl extern func@plt
+  |  evmergelo CRET1, CRET1, CRET2
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc math_ .. func
+  |  cmplwi NARGS8:RC, 16
+  |   evldd CARG2, 0(BASE)
+  |   evldd CARG4, 8(BASE)
+  |  blt ->fff_fallback
+  |  evmergehi CARG1, CARG4, CARG2
+  |  checknum CARG1
+  |   evmergehi CARG3, CARG4, CARG4
+  |  checkanyfail ->fff_fallback
+  |  bl extern func@plt
+  |  evmergelo CRET1, CRET1, CRET2
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |.macro math_round, func
+  |  .ffunc math_ .. func
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG2, 0(BASE)
+  |  blt ->fff_fallback
+  |  checknum CARG2
+  |   evmergehi CARG1, CARG2, CARG2
+  |  checkfail ->fff_fallback
+  |   lwz PC, FRAME_PC(BASE)
+  |  bl ->vm_..func.._hilo;
+  |  la RA, -8(BASE)
+  |  evstdd CRET2, 0(RA)
+  |  b ->fff_res1
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |  math_extern sqrt
+  |
+  |.ffunc math_log
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG2, 0(BASE)
+  |  bne ->fff_fallback                 // Need exactly 1 argument.
+  |  checknum CARG2
+  |   evmergehi CARG1, CARG2, CARG2
+  |  checkfail ->fff_fallback
+  |  bl extern log@plt
+  |  evmergelo CRET1, CRET1, CRET2
+  |  b ->fff_restv
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |->ff_math_deg:
+  |.ffunc_n math_rad
+  |  evldd CARG2, CFUNC:RB->upvalue[0]
+  |  efdmul CRET1, CARG1, CARG2
+  |  b ->fff_restv
+  |
+  |.ffunc math_ldexp
+  |  cmplwi NARGS8:RC, 16
+  |   evldd CARG2, 0(BASE)
+  |   evldd CARG4, 8(BASE)
+  |  blt ->fff_fallback
+  |  evmergehi CARG1, CARG4, CARG2
+  |  checknum CARG1
+  |  checkanyfail ->fff_fallback
+  |  efdctsi CARG3, CARG4
+  |  bl extern ldexp@plt
+  |  evmergelo CRET1, CRET1, CRET2
+  |  b ->fff_restv
+  |
+  |.ffunc math_frexp
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG2, 0(BASE)
+  |  blt ->fff_fallback
+  |  checknum CARG2
+  |   evmergehi CARG1, CARG2, CARG2
+  |  checkfail ->fff_fallback
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   lwz PC, FRAME_PC(BASE)
+  |  bl extern frexp@plt
+  |   lwz TMP1, DISPATCH_GL(tmptv)(DISPATCH)
+  |  evmergelo CRET1, CRET1, CRET2
+  |   efdcfsi CRET2, TMP1
+  |   la RA, -8(BASE)
+  |  evstdd CRET1, 0(RA)
+  |  li RD, (2+1)*8
+  |   evstdd CRET2, 8(RA)
+  |  b ->fff_res
+  |
+  |.ffunc math_modf
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG2, 0(BASE)
+  |  blt ->fff_fallback
+  |  checknum CARG2
+  |   evmergehi CARG1, CARG2, CARG2
+  |  checkfail ->fff_fallback
+  |  la CARG3, -8(BASE)
+  |   lwz PC, FRAME_PC(BASE)
+  |  bl extern modf@plt
+  |  evmergelo CRET1, CRET1, CRET2
+  |   la RA, -8(BASE)
+  |  evstdd CRET1, 0(BASE)
+  |  li RD, (2+1)*8
+  |  b ->fff_res
+  |
+  |.macro math_minmax, name, cmpop
+  |  .ffunc_1 name
+  |  checknum CARG1
+  |   li TMP1, 8
+  |  checkfail ->fff_fallback
+  |1:
+  |  evlddx CARG2, BASE, TMP1
+  |  cmplw cr1, TMP1, NARGS8:RC
+  |   checknum CARG2
+  |  bge cr1, ->fff_restv		// Ok, since CRET1 = CARG1.
+  |   checkfail ->fff_fallback
+  |  cmpop CARG2, CARG1
+  |   addi TMP1, TMP1, 8
+  |  crmove 4*cr0+lt, 4*cr0+gt
+  |  evsel CARG1, CARG2, CARG1
+  |  b <1
+  |.endmacro
+  |
+  |  math_minmax math_min, efdtstlt
+  |  math_minmax math_max, efdtstgt
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc_1 string_len
+  |  checkstr STR:CARG1
+  |  checkfail ->fff_fallback
+  |  lwz TMP0, STR:CARG1->len
+  |  efdcfsi CRET1, TMP0
+  |  b ->fff_restv
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  cmplwi NARGS8:RC, 8
+  |   evldd STR:CARG1, 0(BASE)
+  |  bne ->fff_fallback			// Need exactly 1 argument.
+  |  checkstr STR:CARG1
+  |   la RA, -8(BASE)
+  |  checkfail ->fff_fallback
+  |  lwz TMP0, STR:CARG1->len
+  |   li RD, (0+1)*8
+  |    lbz TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |   li TMP2, (1+1)*8
+  |  cmplwi TMP0, 0
+  |   lwz PC, FRAME_PC(BASE)
+  |    efdcfsi CRET1, TMP1
+  |  iseleq RD, RD, TMP2
+  |    evstdd CRET1, 0(RA)
+  |  b ->fff_res
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG1, 0(BASE)
+  |  bne ->fff_fallback			// Exactly 1 argument.
+  |  checknum CARG1
+  |   la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |  checkfail ->fff_fallback
+  |  efdctsiz TMP0, CARG1
+  |   li CARG3, 1
+  |  cmplwi TMP0, 255
+  |   stb TMP0, 0(CARG2)
+  |  bgt ->fff_fallback
+  |->fff_newstr:
+  |  mr CARG1, L
+  |  stw BASE, L->base
+  |  stw PC, SAVE_PC
+  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |  // Returns GCstr *.
+  |  lwz BASE, L->base
+  |   evmergelo STR:CRET1, TISSTR, STR:CRET1
+  |  b ->fff_restv
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 16
+  |   evldd CARG3, 16(BASE)
+  |   evldd STR:CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |   evldd CARG2, 8(BASE)
+  |   li TMP2, -1
+  |  beq >1
+  |  checknum CARG3
+  |  checkfail ->fff_fallback
+  |  efdctsiz TMP2, CARG3
+  |1:
+  |  checknum CARG2
+  |  checkfail ->fff_fallback
+  |  checkstr STR:CARG1
+  |   efdctsiz TMP1, CARG2
+  |  checkfail ->fff_fallback
+  |   lwz TMP0, STR:CARG1->len
+  |  cmplw TMP0, TMP2			// len < end? (unsigned compare)
+  |   add TMP3, TMP2, TMP0
+  |  blt >5
+  |2:
+  |  cmpwi TMP1, 0			// start <= 0?
+  |   add TMP3, TMP1, TMP0
+  |  ble >7
+  |3:
+  |  sub. CARG3, TMP2, TMP1
+  |    addi CARG2, STR:CARG1, #STR-1
+  |   addi CARG3, CARG3, 1
+  |    add CARG2, CARG2, TMP1
+  |  isellt CARG3, r0, CARG3
+  |  b ->fff_newstr
+  |
+  |5:  // Negative end or overflow.
+  |  cmpw TMP0, TMP2
+  |   addi TMP3, TMP3, 1
+  |  iselgt TMP2, TMP3, TMP0		// end = end > len ? len : end+len+1
+  |  b <2
+  |
+  |7:  // Negative start or underflow.
+  |   cmpwi cr1, TMP3, 0
+  |  iseleq TMP1, r0, TMP3
+  |   isel TMP1, r0, TMP1, 4*cr1+lt
+  |  addi TMP1, TMP1, 1			// start = 1 + (start ? start+len : 0)
+  |  b <3
+  |
+  |.ffunc string_rep			// Only handle the 1-char case inline.
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 16
+  |   evldd CARG1, 0(BASE)
+  |   evldd CARG2, 8(BASE)
+  |  bne ->fff_fallback			// Exactly 2 arguments.
+  |  checknum CARG2
+  |  checkfail ->fff_fallback
+  |  checkstr STR:CARG1
+  |   efdctsiz CARG3, CARG2
+  |  checkfail ->fff_fallback
+  |   lwz TMP0, STR:CARG1->len
+  |  cmpwi CARG3, 0
+  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  ble >2				// Count <= 0? (or non-int)
+  |   cmplwi TMP0, 1
+  |  subi TMP2, CARG3, 1
+  |   blt >2				// Zero length string?
+  |  cmplw cr1, TMP1, CARG3
+  |   bne ->fff_fallback		// Fallback for > 1-char strings.
+  |   lbz TMP0, STR:CARG1[1]
+  |   lwz CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  blt cr1, ->fff_fallback
+  |1:  // Fill buffer with char. Yes, this is suboptimal code (do you care?).
+  |  cmplwi TMP2, 0
+  |   stbx TMP0, CARG2, TMP2
+  |   subi TMP2, TMP2, 1
+  |  bne <1
+  |  b ->fff_newstr
+  |2:  // Return empty string.
+  |  la STR:CRET1, DISPATCH_GL(strempty)(DISPATCH)
+  |  evmergelo CRET1, TISSTR, STR:CRET1
+  |  b ->fff_restv
+  |
+  |.ffunc string_reverse
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |  checkstr STR:CARG1
+  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  checkfail ->fff_fallback
+  |  lwz CARG3, STR:CARG1->len
+  |   la CARG1, #STR(STR:CARG1)
+  |   lwz CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |   li TMP2, 0
+  |  cmplw TMP1, CARG3
+  |   subi TMP3, CARG3, 1
+  |  blt ->fff_fallback
+  |1:  // Reverse string copy.
+  |  cmpwi TMP3, 0
+  |   lbzx TMP1, CARG1, TMP2
+  |  blt ->fff_newstr
+  |   stbx TMP1, CARG2, TMP3
+  |  subi TMP3, TMP3, 1
+  |  addi TMP2, TMP2, 1
+  |  b <1
+  |
+  |.macro ffstring_case, name, lo
+  |  .ffunc name
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   evldd CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |  checkstr STR:CARG1
+  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
+  |  checkfail ->fff_fallback
+  |  lwz CARG3, STR:CARG1->len
+  |   la CARG1, #STR(STR:CARG1)
+  |   lwz CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
+  |  cmplw TMP1, CARG3
+  |   li TMP2, 0
+  |  blt ->fff_fallback
+  |1:  // ASCII case conversion.
+  |  cmplw TMP2, CARG3
+  |   lbzx TMP1, CARG1, TMP2
+  |  bge ->fff_newstr
+  |   subi TMP0, TMP1, lo
+  |    xori TMP3, TMP1, 0x20
+  |   cmplwi TMP0, 26
+  |   isellt TMP1, TMP3, TMP1
+  |   stbx TMP1, CARG2, TMP2
+  |  addi TMP2, TMP2, 1
+  |  b <1
+  |.endmacro
+  |
+  |ffstring_case string_lower, 65
+  |ffstring_case string_upper, 97
+  |
+  |//-- Table library ------------------------------------------------------
+  |
+  |.ffunc_1 table_getn
+  |  checktab CARG1
+  |  checkfail ->fff_fallback
+  |  bl extern lj_tab_len		// (GCtab *t)
+  |  // Returns uint32_t (but less than 2^31).
+  |  efdcfsi CRET1, CRET1
+  |  b ->fff_restv
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_n bit_..name
+  |  efdadd CARG1, CARG1, TOBIT
+  |.endmacro
+  |
+  |.ffunc_bit tobit
+  |->fff_resbit:
+  |  efdcfsi CRET1, CARG1
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |   li TMP1, 8
+  |1:
+  |  evlddx CARG2, BASE, TMP1
+  |  cmplw cr1, TMP1, NARGS8:RC
+  |   checknum CARG2
+  |  bge cr1, ->fff_resbit
+  |   checkfail ->fff_fallback
+  |  efdadd CARG2, CARG2, TOBIT
+  |  ins CARG1, CARG1, CARG2
+  |   addi TMP1, TMP1, 8
+  |  b <1
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, or
+  |.ffunc_bit_op bxor, xor
+  |
+  |.ffunc_bit bswap
+  |  rotlwi TMP0, CARG1, 8
+  |  rlwimi TMP0, CARG1, 24, 0, 7
+  |  rlwimi TMP0, CARG1, 24, 16, 23
+  |  efdcfsi CRET1, TMP0
+  |  b ->fff_restv
+  |
+  |.ffunc_bit bnot
+  |  not TMP0, CARG1
+  |  efdcfsi CRET1, TMP0
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |  .ffunc_nn bit_..name
+  |  efdadd CARG2, CARG2, TOBIT
+  |   efdadd CARG1, CARG1, TOBIT
+  |.if shmod == 1
+  |  rlwinm CARG2, CARG2, 0, 27, 31
+  |.elif shmod == 2
+  |  neg CARG2, CARG2
+  |.endif
+  |  ins TMP0, CARG1, CARG2
+  |  efdcfsi CRET1, TMP0
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, slw, 1
+  |.ffunc_bit_sh rshift, srw, 1
+  |.ffunc_bit_sh arshift, sraw, 1
+  |.ffunc_bit_sh rol, rotlw, 0
+  |.ffunc_bit_sh ror, rotlw, 2
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RB = CFUNC, RC = nargs*8
+  |  lwz TMP3, CFUNC:RB->f
+  |    add TMP1, BASE, NARGS8:RC
+  |   lwz PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
+  |    addi TMP0, TMP1, 8*LUA_MINSTACK
+  |     lwz TMP2, L->maxstack
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  cmplw TMP0, TMP2
+  |     stw BASE, L->base
+  |    stw TMP1, L->top
+  |   mr CARG1, L
+  |  bgt >5				// Need to grow stack.
+  |  mtctr TMP3
+  |  bctrl				// (lua_State *L)
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  lwz BASE, L->base
+  |  cmpwi CRET1, 0
+  |   slwi RD, CRET1, 3
+  |   la RA, -8(BASE)
+  |  bgt ->fff_res			// Returned nresults+1?
+  |1:  // Returned 0 or -1: retry fast path.
+  |  lwz TMP0, L->top
+  |   lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  sub NARGS8:RC, TMP0, BASE
+  |  bne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  andi. TMP0, PC, FRAME_TYPE
+  |   rlwinm TMP1, PC, 0, 0, 28
+  |  bne >3
+  |  lwz INS, -4(PC)
+  |  decode_RA8 TMP1, INS
+  |  addi TMP1, TMP1, 8
+  |3:
+  |  sub TMP2, BASE, TMP1
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  li CARG2, LUA_MINSTACK
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  lwz BASE, L->base
+  |  cmpw TMP0, TMP0			// Set 4*cr0+eq to force retry.
+  |  b <1
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  mflr SAVE0
+  |   stw BASE, L->base
+  |  add TMP0, BASE, NARGS8:RC
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  stw TMP0, L->top
+  |  mr CARG1, L
+  |  bl extern lj_gc_step		// (lua_State *L)
+  |   lwz BASE, L->base
+  |  mtlr SAVE0
+  |    lwz TMP0, L->top
+  |   sub NARGS8:RC, TMP0, BASE
+  |   lwz CFUNC:RB, FRAME_FUNC(BASE)
+  |  blr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  NYI
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
+  |  beq >1
+  |5:  // Re-dispatch to static ins.
+  |  addi TMP1, TMP1, GG_DISP2STATIC	// Assumes decode_OP4 TMP1, INS.
+  |  lwzx TMP0, DISPATCH, TMP1
+  |  mtctr TMP0
+  |  bctr
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  lwz TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
+  |   rlwinm TMP0, TMP3, 31-LUA_HOOKLINE, 31, 0
+  |  bne <5
+  |
+  |   cmpwi cr1, TMP0, 0
+  |  addic. TMP2, TMP2, -1
+  |   beq cr1, <5
+  |  stw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  beq >1
+  |   bge cr1, <5
+  |1:
+  |  mr CARG1, L
+  |   stw MULTRES, SAVE_MULTRES
+  |  mr CARG2, PC
+  |   stw BASE, L->base
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
+  |3:
+  |  lwz BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  lwz INS, -4(PC)
+  |  decode_OP4 TMP1, INS
+  |   decode_RB8 RB, INS
+  |  addi TMP1, TMP1, GG_DISP2STATIC
+  |   decode_RD8 RD, INS
+  |  lwzx TMP0, DISPATCH, TMP1
+  |   decode_RA8 RA, INS
+  |   decode_RC8 RC, INS
+  |  mtctr TMP0
+  |  bctr
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  addi PC, PC, 4
+  |  lwz MULTRES, -20(RB)		// Restore MULTRES for *M ins.
+  |  b <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  NYI
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mr CARG2, PC
+  |.if JIT
+  |  b >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  ori CARG2, PC, 1
+  |1:
+  |.endif
+  |  add TMP0, BASE, RC
+  |   stw PC, SAVE_PC
+  |  mr CARG1, L
+  |   stw BASE, L->base
+  |  sub RA, RA, BASE
+  |   stw TMP0, L->top
+  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
+  |  // Returns ASMFunction.
+  |  lwz BASE, L->base
+  |   lwz TMP0, L->top
+  |   stw ZERO, SAVE_PC			// Invalidate for subsequent line hook.
+  |  sub NARGS8:RC, TMP0, BASE
+  |  add RA, BASE, RA
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  mtctr CRET1
+  |  bctr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  NYI
+  |.endif
+  |->vm_exit_interp:
+  |.if JIT
+  |  NYI
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// FP value rounding. Called by math.floor/math.ceil fast functions
+  |// and from JIT code.
+  |//
+  |// This can be inlined if the CPU has the frin/friz/frip/frim instructions.
+  |// The alternative hard-float approaches have a deep dependency chain.
+  |// The resulting latency is at least 3x-7x the double-precision FP latency
+  |// (e500v2: 6cy, e600: 5cy, Cell: 10cy) or around 20-70 cycles.
+  |//
+  |// The soft-float approach is tedious, but much faster (e500v2: ~11cy/~6cy).
+  |// However it relies on a fast way to transfer the FP value to GPRs
+  |// (e500v2: 0cy for lo-word, 1cy for hi-word).
+  |//
+  |.macro vm_round, name, mode
+  |  // Used temporaries: TMP0, TMP1, TMP2, TMP3.
+  |->name.._efd:			// Input: CARG2, output: CRET2
+  |  evmergehi CARG1, CARG2, CARG2
+  |->name.._hilo:
+  |  // Input: CARG1 (hi), CARG2 (hi, lo), output: CRET2
+  |  rlwinm TMP2, CARG1, 12, 21, 31
+  |  addic. TMP2, TMP2, -1023		// exp = exponent(x) - 1023
+  |   li TMP1, -1
+  |  cmplwi cr1, TMP2, 51		// 0 <= exp <= 51?
+  |   subfic TMP0, TMP2, 52
+  |  bgt cr1, >1
+  |   lus TMP3, 0xfff0
+  |  slw TMP0, TMP1, TMP0		// lomask = -1 << (52-exp)
+  |   sraw TMP1, TMP3, TMP2		// himask = (int32_t)0xfff00000 >> exp
+  |.if mode == 2		// trunc(x):
+  |  evmergelo TMP0, TMP1, TMP0
+  |  evand CRET2, CARG2, TMP0		// hi &= himask, lo &= lomask
+  |.else
+  |  andc TMP2, CARG2, TMP0
+  |   andc TMP3, CARG1, TMP1
+  |  or TMP2, TMP2, TMP3		// ztest = (hi&~himask) | (lo&~lomask)
+  |   srawi TMP3, CARG1, 31		// signmask = (int32_t)hi >> 31
+  |.if mode == 0		// floor(x):
+  |  and. TMP2, TMP2, TMP3		// iszero = ((ztest & signmask) == 0)
+  |.else			// ceil(x):
+  |  andc. TMP2, TMP2, TMP3		// iszero = ((ztest & ~signmask) == 0)
+  |.endif
+  |  and CARG2, CARG2, TMP0		// lo &= lomask
+  |  and CARG1, CARG1, TMP1		// hi &= himask
+  |   subc TMP0, CARG2, TMP0
+  |  iseleq TMP0, CARG2, TMP0		// lo = iszero ? lo : lo-lomask
+  |   sube TMP1, CARG1, TMP1
+  |  iseleq TMP1, CARG1, TMP1		// hi = iszero ? hi : hi-himask+carry
+  |  evmergelo CRET2, TMP1, TMP0
+  |.endif
+  |  blr
+  |1:
+  |  bgtlr				// Already done if >=2^52, +-inf or nan.
+  |.if mode == 2		// trunc(x):
+  |  rlwinm TMP1, CARG1, 0, 0, 0	// hi = sign(x)
+  |  li TMP0, 0
+  |  evmergelo CRET2, TMP1, TMP0
+  |.else
+  |  rlwinm TMP2, CARG1, 0, 1, 31
+  |  srawi TMP0, CARG1, 31		// signmask = (int32_t)hi >> 31
+  |  or TMP2, TMP2, CARG2		// ztest = abs(hi) | lo
+  |   lus TMP1, 0x3ff0
+  |.if mode == 0		// floor(x):
+  |  and. TMP2, TMP2, TMP0		// iszero = ((ztest & signmask) == 0)
+  |.else			// ceil(x):
+  |  andc. TMP2, TMP2, TMP0		// iszero = ((ztest & ~signmask) == 0)
+  |.endif
+  |   li TMP0, 0
+  |  iseleq TMP1, r0, TMP1
+  |  rlwimi CARG1, TMP1, 0, 1, 31	// hi = sign(x) | (iszero ? 0.0 : 1.0)
+  |  evmergelo CRET2, CARG1, TMP0
+  |.endif
+  |  blr
+  |.endmacro
+  |
+  |->vm_floor:
+  |  mflr CARG3
+  |  evmergelo CARG2, CARG1, CARG2
+  |  bl ->vm_floor_hilo
+  |  mtlr CARG3
+  |  evmergehi CRET1, CRET2, CRET2
+  |  blr
+  |
+  |  vm_round vm_floor, 0
+  |  vm_round vm_ceil,  1
+  |.if JIT
+  |  vm_round vm_trunc, 2
+  |.else
+  |->vm_trunc_efd:
+  |->vm_trunc_hilo:
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_ffi_call:
+  |.if FFI
+  |  NYI
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |  evlddx TMP0, BASE, RA
+    |   addi PC, PC, 4
+    |  evlddx TMP1, BASE, RD
+    |   addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |   lwz TMP2, -4(PC)
+    |  evmergehi RB, TMP0, TMP1
+    |   decode_RD4 TMP2, TMP2
+    |  checknum RB
+    |   add TMP2, TMP2, TMP3
+    |  checkanyfail ->vmeta_comp
+    |  efdcmplt TMP0, TMP1
+    if (op == BC_ISLE || op == BC_ISGT) {
+      |  efdcmpeq cr1, TMP0, TMP1
+      |  cror 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
+    }
+    if (op == BC_ISLT || op == BC_ISLE) {
+      |  iselgt PC, TMP2, PC
+    } else {
+      |  iselgt PC, PC, TMP2
+    }
+    |  ins_next
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |  evlddx CARG2, BASE, RA
+    |   addi PC, PC, 4
+    |  evlddx CARG3, BASE, RD
+    |   addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |   lwz TMP2, -4(PC)
+    |  evmergehi RB, CARG2, CARG3
+    |   decode_RD4 TMP2, TMP2
+    |  checknum RB
+    |   add TMP2, TMP2, TMP3
+    |  checkanyfail >5
+    |  efdcmpeq CARG2, CARG3
+    if (vk) {
+      |  iselgt PC, TMP2, PC
+    } else {
+      |  iselgt PC, PC, TMP2
+    }
+    |1:
+    |  ins_next
+    |
+    |5:  // Either or both types are not numbers.
+    |  evcmpeq CARG2, CARG3
+    |   not TMP3, RB
+    |   cmplwi cr1, TMP3, ~LJ_TISPRI		// Primitive?
+    |  crorc 4*cr7+lt, 4*cr0+so, 4*cr0+lt	// 1: Same tv or different type.
+    |   cmplwi cr6, TMP3, ~LJ_TISTABUD		// Table or userdata?
+    |  crandc 4*cr7+gt, 4*cr0+lt, 4*cr1+gt	// 2: Same type and primitive.
+    |   mr SAVE0, PC
+    if (vk) {
+      |  isel PC, TMP2, PC, 4*cr7+gt
+    } else {
+      |  isel TMP2, PC, TMP2, 4*cr7+gt
+    }
+    |  cror 4*cr7+lt, 4*cr7+lt, 4*cr7+gt	// 1 or 2.
+    if (vk) {
+      |  isel PC, TMP2, PC, 4*cr0+so
+    } else {
+      |  isel PC, PC, TMP2, 4*cr0+so
+    }
+    |  blt cr7, <1			// Done if 1 or 2.
+    |  blt cr6, <1			// Done if not tab/ud.
+    |
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  lwz TAB:TMP2, TAB:CARG2->metatable
+    |   li CARG4, 1-vk			// ne = 0 or 1.
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable?
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andi. TMP2, TMP2, 1<<MM_eq
+    |  bne <1				// Or 'no __eq' flag set?
+    |  mr PC, SAVE0			// Restore old PC.
+    |  b ->vmeta_equal			// Handle __eq metamethod.
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
+    |  evlddx TMP0, BASE, RA
+    |   srwi RD, RD, 1
+    |    lwz INS, 0(PC)
+    |   subfic RD, RD, -4
+    |    addi PC, PC, 4
+    |   lwzx STR:TMP1, KBASE, RD	// KBASE-4-str_const*4
+    |    addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |    decode_RD4 TMP2, INS
+    |   evmergelo STR:TMP1, TISSTR, STR:TMP1
+    |    add TMP2, TMP2, TMP3
+    |  evcmpeq TMP0, STR:TMP1
+    if (vk) {
+      |  isel PC, TMP2, PC, 4*cr0+so
+    } else {
+      |  isel PC, PC, TMP2, 4*cr0+so
+    }
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RD = num_const*8, JMP with RD = target
+    |  evlddx TMP0, BASE, RA
+    |   addi PC, PC, 4
+    |  evlddx TMP1, KBASE, RD
+    |   addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |   lwz INS, -4(PC)
+    |  checknum TMP0
+    |  checkfail >5
+    |  efdcmpeq TMP0, TMP1
+    |1:
+    |   decode_RD4 TMP2, INS
+    |   add TMP2, TMP2, TMP3
+    if (vk) {
+      |  iselgt PC, TMP2, PC
+      |5:
+    } else {
+      |  iselgt PC, PC, TMP2
+    }
+    |3:
+    |  ins_next
+    if (!vk) {
+      |5:
+      |  decode_RD4 TMP2, INS
+      |  add PC, TMP2, TMP3
+      |  b <3
+    }
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
+    |  lwzx TMP0, BASE, RA
+    |   srwi TMP1, RD, 3
+    |    lwz INS, 0(PC)
+    |    addi PC, PC, 4
+    |   not TMP1, TMP1
+    |    addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |  cmplw TMP0, TMP1
+    |    decode_RD4 TMP2, INS
+    |    add TMP2, TMP2, TMP3
+    if (vk) {
+      |  iseleq PC, TMP2, PC
+    } else {
+      |  iseleq PC, PC, TMP2
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
+    |  evlddx TMP0, BASE, RD
+    |   evaddw TMP1, TISNIL, TISNIL	// Synthesize LJ_TFALSE.
+    |   lwz INS, 0(PC)
+    |  evcmpltu TMP0, TMP1
+    |   addi PC, PC, 4
+    if (op == BC_IST || op == BC_ISF) {
+      |  addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+      |  decode_RD4 TMP2, INS
+      |  add TMP2, TMP2, TMP3
+      if (op == BC_IST) {
+	|  isellt PC, TMP2, PC
+      } else {
+	|  isellt PC, PC, TMP2
+      }
+    } else {
+      if (op == BC_ISTC) {
+	|  checkfail >1
+      } else {
+	|  checkok >1
+      }
+      |  addis PC, PC, -(BCBIAS_J*4 >> 16)
+      |  decode_RD4 TMP2, INS
+      |   evstddx TMP0, BASE, RA
+      |  add PC, PC, TMP2
+      |1:
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RD = src*8
+    |  ins_next1
+    |  evlddx TMP0, BASE, RD
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RD = src*8
+    |  ins_next1
+    |  lwzx TMP0, BASE, RD
+    |  subfic TMP1, TMP0, LJ_TTRUE
+    |  adde TMP0, TMP0, TMP1
+    |  stwx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RD = src*8
+    |  evlddx TMP0, BASE, RD
+    |  checknum TMP0
+    |  checkfail ->vmeta_unm
+    |  efdneg TMP0, TMP0
+    |  ins_next1
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RD = src*8
+    |  evlddx CARG1, BASE, RD
+    |  checkstr CARG1
+    |  checkfail >2
+    |  lwz CRET1, STR:CARG1->len
+    |1:
+    |  ins_next1
+    |  efdcfsi TMP0, CRET1
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    |2:
+    |  checktab CARG1
+    |  checkfail ->vmeta_len
+#if LJ_52
+    |  lwz TAB:TMP2, TAB:CARG1->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  bne >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  bl extern lj_tab_len		// (GCtab *t)
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+#if LJ_52
+    |9:
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andi. TMP0, TMP0, 1<<MM_len
+    |  bne <3				// 'no __len' flag set: done.
+    |  b ->vmeta_len
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre, t0, t1
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   evlddx t0, BASE, RB
+    |    checknum t0
+    |   evlddx t1, KBASE, RC
+    |    checkfail ->vmeta_arith_vn
+    ||  break;
+    ||case 1:
+    |   evlddx t1, BASE, RB
+    |    checknum t1
+    |   evlddx t0, KBASE, RC
+    |    checkfail ->vmeta_arith_nv
+    ||  break;
+    ||default:
+    |   evlddx t0, BASE, RB
+    |   evlddx t1, BASE, RC
+    |    evmergehi TMP2, t0, t1
+    |    checknum TMP2
+    |    checkanyfail ->vmeta_arith_vv
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arith, ins
+    |  ins_arithpre TMP0, TMP1
+    |  ins_next1
+    |  ins TMP0, TMP0, TMP1
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith efdadd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith efdsub
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith efdmul
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arith efddiv
+    break;
+  case BC_MODVN:
+    |  ins_arithpre RD, SAVE0
+    |->BC_MODVN_Z:
+    |  efddiv CARG2, RD, SAVE0
+    |  bl ->vm_floor_efd		// floor(b/c)
+    |  efdmul TMP0, CRET2, SAVE0
+    |  ins_next1
+    |  efdsub TMP0, RD, TMP0		// b - floor(b/c)*c
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arithpre RD, SAVE0
+    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    break;
+  case BC_POW:
+    |  evlddx CARG2, BASE, RB
+    |  evlddx CARG4, BASE, RC
+    |  evmergehi CARG1, CARG4, CARG2
+    |  checknum CARG1
+    |   evmergehi CARG3, CARG4, CARG4
+    |  checkanyfail ->vmeta_arith_vv
+    |  bl extern pow@plt
+    |  evmergelo CRET2, CRET1, CRET2
+    |  evstddx CRET2, BASE, RA
+    |  ins_next
+    break;
+
+  case BC_CAT:
+    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
+    |  sub CARG3, RC, RB
+    |   stw BASE, L->base
+    |  add CARG2, BASE, RC
+    |  mr SAVE0, RB
+    |->BC_CAT_Z:
+    |   stw PC, SAVE_PC
+    |  mr CARG1, L
+    |  srwi CARG3, CARG3, 3
+    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  cmplwi CRET1, 0
+    |   lwz BASE, L->base
+    |  bne ->vmeta_binop
+    |  evlddx TMP0, BASE, SAVE0		// Copy result from RB to RA.
+    |  evstddx TMP0, BASE, RA
+    |  ins_next
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RD = str_const*8 (~)
+    |  ins_next1
+    |  srwi TMP1, RD, 1
+    |  subfic TMP1, TMP1, -4
+    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-str_const*4
+    |  evmergelo TMP0, TISSTR, TMP0
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RD = cdata_const*8 (~)
+    |  ins_next1
+    |  srwi TMP1, RD, 1
+    |  subfic TMP1, TMP1, -4
+    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-cdata_const*4
+    |  li TMP2, LJ_TCDATA
+    |  evmergelo TMP0, TMP2, TMP0
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, RD = int16_literal*8
+    |  srwi TMP1, RD, 3
+    |  extsh TMP1, TMP1
+    |  ins_next1
+    |  efdcfsi TMP0, TMP1
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RD = num_const*8
+    |  evlddx TMP0, KBASE, RD
+    |  ins_next1
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RD = primitive_type*8 (~)
+    |  srwi TMP1, RD, 3
+    |  not TMP0, TMP1
+    |  ins_next1
+    |  stwx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RD = end*8
+    |  evstddx TISNIL, BASE, RA
+    |   addi RA, RA, 8
+    |1:
+    |  evstddx TISNIL, BASE, RA
+    |  cmpw RA, RD
+    |   addi RA, RA, 8
+    |  blt <1
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RD = uvnum*8
+    |  ins_next1
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RD, RD, 1
+    |   addi RD, RD, offsetof(GCfuncL, uvptr)
+    |  lwzx UPVAL:RB, LFUNC:RB, RD
+    |  lwz TMP1, UPVAL:RB->v
+    |  evldd TMP0, 0(TMP1)
+    |  evstddx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RD = src*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |    srwi RA, RA, 1
+    |    addi RA, RA, offsetof(GCfuncL, uvptr)
+    |   evlddx TMP1, BASE, RD
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  lbz TMP3, UPVAL:RB->marked
+    |   lwz CARG2, UPVAL:RB->v
+    |  andi. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |    lbz TMP0, UPVAL:RB->closed
+    |   evmergehi TMP2, TMP1, TMP1
+    |   evstdd TMP1, 0(CARG2)
+    |    cmplwi cr1, TMP0, 0
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+    |   subi TMP2, TMP2, (LJ_TISNUM+1)
+    |  bne >2				// Upvalue is closed and black?
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  cmplwi TMP2, LJ_TISGCV - (LJ_TISNUM+1)
+    |  bge <1				// tvisgcv(v)
+    |  lbz TMP3, GCOBJ:TMP1->gch.marked
+    |  andi. TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
+    |   la CARG1, GG_DISP2G(DISPATCH)
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  beq <1
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RD = str_const*8 (~)
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi TMP1, RD, 1
+    |    srwi RA, RA, 1
+    |   subfic TMP1, TMP1, -4
+    |    addi RA, RA, offsetof(GCfuncL, uvptr)
+    |   lwzx STR:TMP1, KBASE, TMP1	// KBASE-4-str_const*4
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |   evmergelo STR:TMP1, TISSTR, STR:TMP1
+    |  lbz TMP3, UPVAL:RB->marked
+    |   lwz CARG2, UPVAL:RB->v
+    |  andi. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |   lbz TMP3, STR:TMP1->marked
+    |   lbz TMP2, UPVAL:RB->closed
+    |   evstdd STR:TMP1, 0(CARG2)
+    |  bne >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  andi. TMP3, TMP3, LJ_GC_WHITES	// iswhite(str)
+    |   cmplwi cr1, TMP2, 0
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+    |   la CARG1, GG_DISP2G(DISPATCH)
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  beq <1
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RD = num_const*8
+    |  ins_next1
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RA, RA, 1
+    |   addi RA, RA, offsetof(GCfuncL, uvptr)
+    |    evlddx TMP0, KBASE, RD
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  lwz TMP1, UPVAL:RB->v
+    |  evstdd TMP0, 0(TMP1)
+    |  ins_next2
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RD = primitive_type*8 (~)
+    |  ins_next1
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RA, RA, 1
+    |   addi RA, RA, offsetof(GCfuncL, uvptr)
+    |    srwi TMP0, RD, 3
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |    not TMP0, TMP0
+    |  lwz TMP1, UPVAL:RB->v
+    |  stw TMP0, 0(TMP1)
+    |  ins_next2
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RD = target
+    |  lwz TMP1, L->openupval
+    |  branch_RD			// Do this first since RD is not saved.
+    |   stw BASE, L->base
+    |  cmplwi TMP1, 0
+    |   mr CARG1, L
+    |  beq >1
+    |   add CARG2, BASE, RA
+    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  lwz BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
+    |  srwi TMP1, RD, 1
+    |   stw BASE, L->base
+    |  subfic TMP1, TMP1, -4
+    |   stw PC, SAVE_PC
+    |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
+    |   mr CARG1, L
+    |  lwz CARG3, FRAME_FUNC(BASE)
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  bl extern lj_func_newL_gc
+    |  // Returns GCfuncL *.
+    |  lwz BASE, L->base
+    |  evmergelo LFUNC:CRET1, TISFUNC, LFUNC:CRET1
+    |  evstddx LFUNC:CRET1, BASE, RA
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
+    |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+    |   mr CARG1, L
+    |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+    |   stw BASE, L->base
+    |  cmplw TMP0, TMP1
+    |   stw PC, SAVE_PC
+    |  bge >5
+    |1:
+    if (op == BC_TNEW) {
+      |  rlwinm CARG2, RD, 29, 21, 31
+      |  rlwinm CARG3, RD, 18, 27, 31
+      |  cmpwi CARG2, 0x7ff
+      |   li TMP1, 0x801
+      |  iseleq CARG2, TMP1, CARG2
+      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  // Returns Table *.
+    } else {
+      |  srwi TMP1, RD, 1
+      |  subfic TMP1, TMP1, -4
+      |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
+      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
+      |  // Returns Table *.
+    }
+    |  lwz BASE, L->base
+    |  evmergelo TAB:CRET1, TISTAB, TAB:CRET1
+    |  evstddx TAB:CRET1, BASE, RA
+    |  ins_next
+    |5:
+    |  mr SAVE0, RD
+    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
+    |  mr RD, SAVE0
+    |  mr CARG1, L
+    |  b <1
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RD = str_const*8 (~)
+  case BC_GSET:
+    |  // RA = src*8, RD = str_const*8 (~)
+    |  lwz LFUNC:TMP2, FRAME_FUNC(BASE)
+    |   srwi TMP1, RD, 1
+    |  lwz TAB:RB, LFUNC:TMP2->env
+    |   subfic TMP1, TMP1, -4
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    break;
+
+  case BC_TGETV:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  evlddx TAB:RB, BASE, RB
+    |   evlddx RC, BASE, RC
+    |  checktab TAB:RB
+    |  checkfail ->vmeta_tgetv
+    |  checknum RC
+    |  checkfail >5
+    |  // Convert number key to integer
+    |  efdctsi TMP2, RC
+    |   lwz TMP0, TAB:RB->asize
+    |  efdcfsi TMP1, TMP2
+    |   cmplw cr0, TMP0, TMP2
+    |  efdcmpeq cr1, RC, TMP1
+    |   lwz TMP1, TAB:RB->array
+    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
+    |   slwi TMP2, TMP2, 3
+    |  ble ->vmeta_tgetv		// Integer key and in array part?
+    |  evlddx TMP1, TMP1, TMP2
+    |  checknil TMP1
+    |  checkok >2
+    |1:
+    |  evstddx TMP1, BASE, RA
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andi. TMP0, TMP0, 1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetv
+    |
+    |5:
+    |  checkstr STR:RC			// String key?
+    |  checkok ->BC_TGETS_Z
+    |  b ->vmeta_tgetv
+    break;
+  case BC_TGETS:
+    |  // RA = dst*8, RB = table*8, RC = str_const*8 (~)
+    |  evlddx TAB:RB, BASE, RB
+    |   srwi TMP1, RC, 1
+    |  checktab TAB:RB
+    |   subfic TMP1, TMP1, -4
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    |  checkfail ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  lwz TMP0, TAB:RB->hmask
+    |  lwz TMP1, STR:RC->hash
+    |  lwz NODE:TMP2, TAB:RB->node
+    |   evmergelo STR:RC, TISSTR, STR:RC
+    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+    |  slwi TMP0, TMP1, 5
+    |  slwi TMP1, TMP1, 3
+    |  sub TMP1, TMP0, TMP1
+    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  evldd TMP0, NODE:TMP2->key
+    |   evldd TMP1, NODE:TMP2->val
+    |  evcmpeq TMP0, STR:RC
+    |  checkanyfail >4
+    |   checknil TMP1
+    |   checkok >5			// Key found, but nil value?
+    |3:
+    |   evstddx TMP1, BASE, RA
+    |  ins_next
+    |
+    |4:  // Follow hash chain.
+    |  lwz NODE:TMP2, NODE:TMP2->next
+    |  cmplwi NODE:TMP2, 0
+    |  bne <1
+    |  // End of hash chain: key not found, nil result.
+    |   evmr TMP1, TISNIL
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <3				// No metatable: done.
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andi. TMP0, TMP0, 1<<MM_index
+    |  bne <3				// 'no __index' flag set: done.
+    |  b ->vmeta_tgets
+    break;
+  case BC_TGETB:
+    |  // RA = dst*8, RB = table*8, RC = index*8
+    |  evlddx TAB:RB, BASE, RB
+    |   srwi TMP0, RC, 3
+    |  checktab TAB:RB
+    |  checkfail ->vmeta_tgetb
+    |  lwz TMP1, TAB:RB->asize
+    |   lwz TMP2, TAB:RB->array
+    |  cmplw TMP0, TMP1
+    |  bge ->vmeta_tgetb
+    |  evlddx TMP1, TMP2, RC
+    |  checknil TMP1
+    |  checkok >5
+    |1:
+    |  ins_next1
+    |  evstddx TMP1, BASE, RA
+    |  ins_next2
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andi. TMP2, TMP2, 1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetb			// Caveat: preserve TMP0!
+    break;
+
+  case BC_TSETV:
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  evlddx TAB:RB, BASE, RB
+    |   evlddx RC, BASE, RC
+    |  checktab TAB:RB
+    |  checkfail ->vmeta_tsetv
+    |  checknum RC
+    |  checkfail >5
+    |  // Convert number key to integer
+    |  efdctsi TMP2, RC
+    |    evlddx SAVE0, BASE, RA
+    |   lwz TMP0, TAB:RB->asize
+    |  efdcfsi TMP1, TMP2
+    |   cmplw cr0, TMP0, TMP2
+    |  efdcmpeq cr1, RC, TMP1
+    |   lwz TMP1, TAB:RB->array
+    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
+    |   slwi TMP0, TMP2, 3
+    |  ble ->vmeta_tsetv		// Integer key and in array part?
+    |   lbz TMP3, TAB:RB->marked
+    |  evlddx TMP2, TMP1, TMP0
+    |  checknil TMP2
+    |  checkok >3
+    |1:
+    |  andi. TMP2, TMP3, LJ_GC_BLACK	// isblack(table)
+    |   evstddx SAVE0, TMP1, TMP0
+    |  bne >7
+    |2:
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andi. TMP2, TMP2, 1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetv
+    |
+    |5:
+    |  checkstr STR:RC			// String key?
+    |  checkok ->BC_TSETS_Z
+    |  b ->vmeta_tsetv
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <2
+    break;
+  case BC_TSETS:
+    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
+    |  evlddx TAB:RB, BASE, RB
+    |   srwi TMP1, RC, 1
+    |  checktab TAB:RB
+    |   subfic TMP1, TMP1, -4
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    |  checkfail ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = src*8
+    |  lwz TMP0, TAB:RB->hmask
+    |  lwz TMP1, STR:RC->hash
+    |  lwz NODE:TMP2, TAB:RB->node
+    |   evmergelo STR:RC, TISSTR, STR:RC
+    |    stb ZERO, TAB:RB->nomm		// Clear metamethod cache.
+    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
+    |    evlddx SAVE0, BASE, RA
+    |  slwi TMP0, TMP1, 5
+    |  slwi TMP1, TMP1, 3
+    |  sub TMP1, TMP0, TMP1
+    |    lbz TMP3, TAB:RB->marked
+    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  evldd TMP0, NODE:TMP2->key
+    |   evldd TMP1, NODE:TMP2->val
+    |  evcmpeq TMP0, STR:RC
+    |  checkanyfail >5
+    |   checknil TMP1
+    |   checkok >4			// Key found, but nil value?
+    |2:
+    |  andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |    evstdd SAVE0, NODE:TMP2->val
+    |  bne >7
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |  cmplwi TAB:TMP1, 0
+    |  beq <2				// No metatable: done.
+    |  lbz TMP0, TAB:TMP1->nomm
+    |  andi. TMP0, TMP0, 1<<MM_newindex
+    |  bne <2				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsets
+    |
+    |5:  // Follow hash chain.
+    |  lwz NODE:TMP2, NODE:TMP2->next
+    |  cmplwi NODE:TMP2, 0
+    |  bne <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |   la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+    |   stw PC, SAVE_PC
+    |   mr CARG1, L
+    |  cmplwi TAB:TMP1, 0
+    |   stw BASE, L->base
+    |  beq >6				// No metatable: continue.
+    |  lbz TMP0, TAB:TMP1->nomm
+    |  andi. TMP0, TMP0, 1<<MM_newindex
+    |  beq ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |6:
+    |  mr CARG2, TAB:RB
+    |  evstdd STR:RC, 0(CARG3)
+    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
+    |  // Returns TValue *.
+    |  lwz BASE, L->base
+    |  evstdd SAVE0, 0(CRET1)
+    |  b <3				// No 2nd write barrier needed.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <3
+    break;
+  case BC_TSETB:
+    |  // RA = src*8, RB = table*8, RC = index*8
+    |  evlddx TAB:RB, BASE, RB
+    |   srwi TMP0, RC, 3
+    |  checktab TAB:RB
+    |  checkfail ->vmeta_tsetb
+    |  lwz TMP1, TAB:RB->asize
+    |   lwz TMP2, TAB:RB->array
+    |    lbz TMP3, TAB:RB->marked
+    |  cmplw TMP0, TMP1
+    |   evlddx SAVE0, BASE, RA
+    |  bge ->vmeta_tsetb
+    |  evlddx TMP1, TMP2, RC
+    |  checknil TMP1
+    |  checkok >5
+    |1:
+    |  andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |   evstddx SAVE0, TMP2, RC
+    |  bne >7
+    |2:
+    |  ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |  cmplwi TAB:TMP1, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP1, TAB:TMP1->nomm
+    |  andi. TMP1, TMP1, 1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetb			// Caveat: preserve TMP0!
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
+    |  add RA, BASE, RA
+    |1:
+    |   add TMP3, KBASE, RD
+    |  lwz TAB:CARG2, -4(RA)		// Guaranteed to be a table.
+    |    addic. TMP0, MULTRES, -8
+    |   lwz TMP3, 4(TMP3)		// Integer constant is in lo-word.
+    |    srwi CARG3, TMP0, 3
+    |    beq >4				// Nothing to copy?
+    |  add CARG3, CARG3, TMP3
+    |  lwz TMP2, TAB:CARG2->asize
+    |   slwi TMP1, TMP3, 3
+    |    lbz TMP3, TAB:CARG2->marked
+    |  cmplw CARG3, TMP2
+    |   add TMP2, RA, TMP0
+    |   lwz TMP0, TAB:CARG2->array
+    |  bgt >5
+    |   add TMP1, TMP1, TMP0
+    |    andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |3:  // Copy result slots to table.
+    |   evldd TMP0, 0(RA)
+    |  addi RA, RA, 8
+    |  cmpw cr1, RA, TMP2
+    |   evstdd TMP0, 0(TMP1)
+    |    addi TMP1, TMP1, 8
+    |  blt cr1, <3
+    |  bne >7
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |   stw BASE, L->base
+    |  mr CARG1, L
+    |   stw PC, SAVE_PC
+    |  mr SAVE0, RD
+    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
+    |  // Must not reallocate the stack.
+    |  mr RD, SAVE0
+    |  b <1
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP0
+    |  b <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
+    |  add NARGS8:RC, NARGS8:RC, MULTRES
+    |  // Fall through. Assumes BC_CALL follows.
+    break;
+  case BC_CALL:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
+    |  evlddx LFUNC:RB, BASE, RA
+    |   mr TMP2, BASE
+    |   add BASE, BASE, RA
+    |    subi NARGS8:RC, NARGS8:RC, 8
+    |  checkfunc LFUNC:RB
+    |   addi BASE, BASE, 8
+    |  checkfail ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
+    |  add NARGS8:RC, NARGS8:RC, MULTRES
+    |  // Fall through. Assumes BC_CALLT follows.
+    break;
+  case BC_CALLT:
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |  evlddx LFUNC:RB, BASE, RA
+    |   add RA, BASE, RA
+    |    lwz TMP1, FRAME_PC(BASE)
+    |    subi NARGS8:RC, NARGS8:RC, 8
+    |  checkfunc LFUNC:RB
+    |   addi RA, RA, 8
+    |  checkfail ->vmeta_callt
+    |->BC_CALLT_Z:
+    |  andi. TMP0, TMP1, FRAME_TYPE	// Caveat: preserve cr0 until the crand.
+    |   lbz TMP3, LFUNC:RB->ffid
+    |    xori TMP2, TMP1, FRAME_VARG
+    |    cmplwi cr1, NARGS8:RC, 0
+    |  bne >7
+    |1:
+    |  stw LFUNC:RB, FRAME_FUNC(BASE)	// Copy function down, but keep PC.
+    |  li TMP2, 0
+    |   cmplwi cr7, TMP3, 1		// (> FF_C) Calling a fast function?
+    |    beq cr1, >3
+    |2:
+    |  addi TMP3, TMP2, 8
+    |   evlddx TMP0, RA, TMP2
+    |  cmplw cr1, TMP3, NARGS8:RC
+    |   evstddx TMP0, BASE, TMP2
+    |  mr TMP2, TMP3
+    |  bne cr1, <2
+    |3:
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+gt
+    |  beq >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  lwz INS, -4(TMP1)
+    |  decode_RA8 RA, INS
+    |  sub TMP1, BASE, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC-8(TMP1)
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
+    |  b <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  andi. TMP0, TMP2, FRAME_TYPEP
+    |  bne <1				// Vararg frame below?
+    |  sub BASE, BASE, TMP2		// Relocate BASE down.
+    |  lwz TMP1, FRAME_PC(BASE)
+    |  andi. TMP0, TMP1, FRAME_TYPE
+    |  b <1
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
+    |  subi RA, RA, 24			// evldd doesn't support neg. offsets.
+    |   mr TMP2, BASE
+    |  evlddx LFUNC:RB, BASE, RA
+    |   add BASE, BASE, RA
+    |   evldd TMP0, 8(BASE)
+    |    evldd TMP1, 16(BASE)
+    |  evstdd LFUNC:RB, 24(BASE)	// Copy callable.
+    |  checkfunc LFUNC:RB
+    |   evstdd TMP0, 32(BASE)		// Copy state.
+    |     li NARGS8:RC, 16		// Iterators get 2 arguments.
+    |    evstdd TMP1, 40(BASE)		// Copy control var.
+    |     addi BASE, BASE, 32
+    |  checkfail ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |.if JIT
+    |  // NYI: add hotloop, record BC_ITERN.
+    |.endif
+    |  add RA, BASE, RA
+    |  lwz TAB:RB, -12(RA)
+    |  lwz RC, -4(RA)			// Get index from control var.
+    |  lwz TMP0, TAB:RB->asize
+    |  lwz TMP1, TAB:RB->array
+    |   addi PC, PC, 4
+    |1:  // Traverse array part.
+    |  cmplw RC, TMP0
+    |   slwi TMP3, RC, 3
+    |  bge >5				// Index points after array part?
+    |  evlddx TMP2, TMP1, TMP3
+    |  checknil TMP2
+    |     lwz INS, -4(PC)
+    |  checkok >4
+    |   efdcfsi TMP0, RC
+    |    addi RC, RC, 1
+    |     addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |  evstdd TMP2, 8(RA)
+    |     decode_RD4 TMP1, INS
+    |    stw RC, -4(RA)			// Update control var.
+    |     add PC, TMP1, TMP3
+    |   evstdd TMP0, 0(RA)
+    |3:
+    |  ins_next
+    |
+    |4:  // Skip holes in array part.
+    |  addi RC, RC, 1
+    |  b <1
+    |
+    |5:  // Traverse hash part.
+    |  lwz TMP1, TAB:RB->hmask
+    |  sub RC, RC, TMP0
+    |   lwz TMP2, TAB:RB->node
+    |6:
+    |  cmplw RC, TMP1			// End of iteration? Branch to ITERL+1.
+    |   slwi TMP3, RC, 5
+    |  bgt <3
+    |   slwi RB, RC, 3
+    |   sub TMP3, TMP3, RB
+    |  evlddx RB, TMP2, TMP3
+    |   add NODE:TMP3, TMP2, TMP3
+    |  checknil RB
+    |     lwz INS, -4(PC)
+    |  checkok >7
+    |   evldd TMP3, NODE:TMP3->key
+    |     addis TMP2, PC, -(BCBIAS_J*4 >> 16)
+    |  evstdd RB, 8(RA)
+    |    add RC, RC, TMP0
+    |     decode_RD4 TMP1, INS
+    |   evstdd TMP3, 0(RA)
+    |    addi RC, RC, 1
+    |     add PC, TMP1, TMP2
+    |    stw RC, -4(RA)			// Update control var.
+    |  b <3
+    |
+    |7:  // Skip holes in hash part.
+    |  addi RC, RC, 1
+    |  b <6
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RD = target (points to ITERN)
+    |  add RA, BASE, RA
+    |   li TMP2, -24
+    |  evlddx CFUNC:TMP1, RA, TMP2
+    |   lwz TMP2, -16(RA)
+    |    lwz TMP3, -8(RA)
+    |  evmergehi TMP0, CFUNC:TMP1, CFUNC:TMP1
+    |   cmpwi cr0, TMP2, LJ_TTAB
+    |  cmpwi cr1, TMP0, LJ_TFUNC
+    |    cmpwi cr6, TMP3, LJ_TNIL
+    |  bne cr1, >5
+    |  lbz TMP1, CFUNC:TMP1->ffid
+    |   crand 4*cr0+eq, 4*cr0+eq, 4*cr6+eq
+    |  cmpwi cr7, TMP1, FF_next_N
+    |    srwi TMP0, RD, 1
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+eq
+    |    add TMP3, PC, TMP0
+    |  bne cr0, >5
+    |  lus TMP1, 0xfffe
+    |  ori TMP1, TMP1, 0x7fff
+    |  stw ZERO, -4(RA)			// Initialize control var.
+    |  stw TMP1, -8(RA)
+    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  li TMP0, BC_JMP
+    |   li TMP1, BC_ITERC
+    |  stb TMP0, -1(PC)
+    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
+    |   stb TMP1, 3(PC)
+    |  b <1
+    break;
+
+  case BC_VARG:
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  lwz TMP0, FRAME_PC(BASE)
+    |  add RC, BASE, RC
+    |   add RA, BASE, RA
+    |  addi RC, RC, FRAME_VARG
+    |   add TMP2, RA, RB
+    |  subi TMP3, BASE, 8		// TMP3 = vtop
+    |  sub RC, RC, TMP0			// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  cmplwi cr1, RB, 0
+    |   sub. TMP1, TMP3, RC
+    |  beq cr1, >5			// Copy all varargs?
+    |   subi TMP2, TMP2, 16
+    |   ble >2				// No vararg slots?
+    |1:  // Copy vararg slots to destination slots.
+    |  evldd TMP0, 0(RC)
+    |   addi RC, RC, 8
+    |  evstdd TMP0, 0(RA)
+    |  cmplw RA, TMP2
+    |   cmplw cr1, RC, TMP3
+    |  bge >3				// All destination slots filled?
+    |    addi RA, RA, 8
+    |   blt cr1, <1			// More vararg slots?
+    |2:  // Fill up remainder with nil.
+    |  evstdd TISNIL, 0(RA)
+    |  cmplw RA, TMP2
+    |   addi RA, RA, 8
+    |  blt <2
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  lwz TMP0, L->maxstack
+    |   li MULTRES, 8			// MULTRES = (0+1)*8
+    |  ble <3				// No vararg slots?
+    |  add TMP2, RA, TMP1
+    |  cmplw TMP2, TMP0
+    |   addi MULTRES, TMP1, 8
+    |  bgt >7
+    |6:
+    |  evldd TMP0, 0(RC)
+    |   addi RC, RC, 8
+    |  evstdd TMP0, 0(RA)
+    |  cmplw RC, TMP3
+    |   addi RA, RA, 8
+    |  blt <6				// More vararg slots?
+    |  b <3
+    |
+    |7:  // Grow stack for varargs.
+    |  mr CARG1, L
+    |   stw RA, L->top
+    |  sub SAVE0, RC, BASE		// Need delta, because BASE may change.
+    |   stw BASE, L->base
+    |  sub RA, RA, BASE
+    |   stw PC, SAVE_PC
+    |  srwi CARG2, TMP1, 3
+    |  bl extern lj_state_growstack	// (lua_State *L, int n)
+    |  lwz BASE, L->base
+    |  add RA, BASE, RA
+    |  add RC, BASE, SAVE0
+    |  subi TMP3, BASE, 8
+    |  b <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RD = extra_nresults*8
+    |  add RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
+    |  // Fall through. Assumes BC_RET follows.
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lwz PC, FRAME_PC(BASE)
+    |   add RA, BASE, RA
+    |    mr MULTRES, RD
+    |1:
+    |  andi. TMP0, PC, FRAME_TYPE
+    |   xori TMP1, PC, FRAME_VARG
+    |  bne ->BC_RETV_Z
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
+    |   lwz INS, -4(PC)
+    |  cmpwi RD, 8
+    |   subi TMP2, BASE, 8
+    |   subi RC, RD, 8
+    |   decode_RB8 RB, INS
+    |  beq >3
+    |   li TMP1, 0
+    |2:
+    |  addi TMP3, TMP1, 8
+    |   evlddx TMP0, RA, TMP1
+    |  cmpw TMP3, RC
+    |   evstddx TMP0, TMP2, TMP1
+    |  beq >3
+    |  addi TMP1, TMP3, 8
+    |   evlddx TMP0, RA, TMP3
+    |  cmpw TMP1, RC
+    |   evstddx TMP0, TMP2, TMP3
+    |  bne <2
+    |3:
+    |5:
+    |  cmplw RB, RD
+    |   decode_RA8 RA, INS
+    |  bgt >6
+    |   sub BASE, TMP2, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  subi TMP1, RD, 8
+    |   addi RD, RD, 8
+    |  evstddx TISNIL, TMP2, TMP1
+    |  b <5
+    |
+    |->BC_RETV_Z:  // Non-standard return case.
+    |  andi. TMP2, TMP1, FRAME_TYPEP
+    |  bne ->vm_return
+    |  // Return from vararg function: relocate BASE down.
+    |  sub BASE, BASE, TMP1
+    |  lwz PC, FRAME_PC(BASE)
+    |  b <1
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lwz PC, FRAME_PC(BASE)
+    |   add RA, BASE, RA
+    |    mr MULTRES, RD
+    |  andi. TMP0, PC, FRAME_TYPE
+    |   xori TMP1, PC, FRAME_VARG
+    |  bne ->BC_RETV_Z
+    |
+    |  lwz INS, -4(PC)
+    |   subi TMP2, BASE, 8
+    |  decode_RB8 RB, INS
+    if (op == BC_RET1) {
+      |  evldd TMP0, 0(RA)
+      |  evstdd TMP0, 0(TMP2)
+    }
+    |5:
+    |  cmplw RB, RD
+    |   decode_RA8 RA, INS
+    |  bgt >6
+    |   sub BASE, TMP2, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  subi TMP1, RD, 8
+    |   addi RD, RD, 8
+    |  evstddx TISNIL, TMP2, TMP1
+    |  b <5
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RD = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  add RA, BASE, RA
+    |  evldd TMP1, FORL_IDX*8(RA)
+    |  evldd TMP3, FORL_STEP*8(RA)
+    |  evldd TMP2, FORL_STOP*8(RA)
+    if (!vk) {
+      |  evcmpgtu cr0, TMP1, TISNUM
+      |  evcmpgtu cr7, TMP3, TISNUM
+      |  evcmpgtu cr1, TMP2, TISNUM
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr7+lt
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+      |  blt ->vmeta_for
+    }
+    if (vk) {
+      |  efdadd TMP1, TMP1, TMP3
+      |  evstdd TMP1, FORL_IDX*8(RA)
+    }
+    |   evcmpgts TMP3, TISNIL
+    |  evstdd TMP1, FORL_EXT*8(RA)
+    |   bge >2
+    |  efdcmpgt TMP1, TMP2
+    |1:
+    if (op != BC_JFORL) {
+      |  srwi RD, RD, 1
+      |  add RD, PC, RD
+      if (op == BC_JFORI) {
+	|  addis PC, RD, -(BCBIAS_J*4 >> 16)
+      } else {
+	|  addis RD, RD, -(BCBIAS_J*4 >> 16)
+      }
+    }
+    if (op == BC_FORI) {
+      |  iselgt PC, RD, PC
+    } else if (op == BC_IFORL) {
+      |  iselgt PC, PC, RD
+    } else {
+      |  ble =>BC_JLOOP
+    }
+    |  ins_next
+    |2:
+    |  efdcmpgt TMP2, TMP1
+    |  b <1
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RD = target
+    |  evlddx TMP1, BASE, RA
+    |   subi RA, RA, 8
+    |  checknil TMP1
+    |  checkok >1			// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  NYI
+    } else {
+      |  branch_RD			// Otherwise save control var + branch.
+      |  evstddx TMP1, BASE, RA
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  NYI
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RD = target
+    |  branch_RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lwz TMP2, L->maxstack
+    |   lbz TMP1, -4+PC2PROTO(numparams)(PC)
+    |    lwz KBASE, -4+PC2PROTO(k)(PC)
+    |  cmplw RA, TMP2
+    |   slwi TMP1, TMP1, 3
+    |  bgt ->vm_growstack_l
+    |  ins_next1
+    |2:
+    |  cmplw NARGS8:RC, TMP1		// Check for missing parameters.
+    |  ble >3
+    if (op == BC_JFUNCF) {
+      |  NYI
+    } else {
+      |  ins_next2
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  evstddx TISNIL, BASE, NARGS8:RC
+    |  addi NARGS8:RC, NARGS8:RC, 8
+    |  b <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lwz TMP2, L->maxstack
+    |   add TMP1, BASE, RC
+    |  add TMP0, RA, RC
+    |   stw LFUNC:RB, 4(TMP1)		// Store copy of LFUNC.
+    |   addi TMP3, RC, 8+FRAME_VARG
+    |    lwz KBASE, -4+PC2PROTO(k)(PC)
+    |  cmplw TMP0, TMP2
+    |   stw TMP3, 0(TMP1)		// Store delta + FRAME_VARG.
+    |  bge ->vm_growstack_l
+    |  lbz TMP2, -4+PC2PROTO(numparams)(PC)
+    |   mr RA, BASE
+    |   mr RC, TMP1
+    |  ins_next1
+    |  cmpwi TMP2, 0
+    |   addi BASE, TMP1, 8
+    |  beq >3
+    |1:
+    |  cmplw RA, RC			// Less args than parameters?
+    |   evldd TMP0, 0(RA)
+    |  bge >4
+    |    evstdd TISNIL, 0(RA)		// Clear old fixarg slot (help the GC).
+    |    addi RA, RA, 8
+    |2:
+    |  addic. TMP2, TMP2, -1
+    |   evstdd TMP0, 8(TMP1)
+    |    addi TMP1, TMP1, 8
+    |  bne <1
+    |3:
+    |  ins_next2
+    |
+    |4:  // Clear missing parameters.
+    |  evmr TMP0, TISNIL
+    |  b <2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  lwz TMP3, CFUNC:RB->f
+    } else {
+      |  lwz TMP3, DISPATCH_GL(wrapf)(DISPATCH)
+    }
+    |   add TMP1, RA, NARGS8:RC
+    |   lwz TMP2, L->maxstack
+    |    add RC, BASE, NARGS8:RC
+    |   stw BASE, L->base
+    |   cmplw TMP1, TMP2
+    |    stw RC, L->top
+    |     li_vmstate C
+    |  mtctr TMP3
+    if (op == BC_FUNCCW) {
+      |  lwz CARG2, CFUNC:RB->f
+    }
+    |  mr CARG1, L
+    |   bgt ->vm_growstack_c		// Need to grow stack.
+    |     st_vmstate
+    |  bctrl				// (lua_State *L [, lua_CFunction f])
+    |  // Returns nresults.
+    |  lwz TMP1, L->top
+    |   slwi RD, CRET1, 3
+    |  lwz BASE, L->base
+    |    li_vmstate INTERP
+    |  lwz PC, FRAME_PC(BASE)		// Fetch PC of caller.
+    |   sub RA, TMP1, RD		// RA = L->top - nresults*8
+    |    st_vmstate
+    |  b ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x5\n\t.uleb128 70\n\t.sleb128 37\n",
+	(int)ctx->codesz, CFRAME_SIZE);
+    for (i = 14; i <= 31; i++)
+      fprintf(ctx->fp,
+	"\t.byte %d\n\t.uleb128 %d\n"
+	"\t.byte 5\n\t.uleb128 %d\n\t.uleb128 %d\n",
+	0x80+i, 1+2*(31-i), 1200+i, 2+2*(31-i));
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .LASFDE1-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x5\n\t.uleb128 70\n\t.sleb128 37\n",
+	(int)ctx->codesz, CFRAME_SIZE);
+    for (i = 14; i <= 31; i++)
+      fprintf(ctx->fp,
+	"\t.byte %d\n\t.uleb128 %d\n"
+	"\t.byte 5\n\t.uleb128 %d\n\t.uleb128 %d\n",
+	0x80+i, 1+2*(31-i), 1200+i, 2+2*(31-i));
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE1:\n\n");
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/lib/luajit/src/vm_x86.dasc b/lib/luajit/src/vm_x86.dasc
new file mode 100644
index 00000000..8a9b536d
--- /dev/null
+++ b/lib/luajit/src/vm_x86.dasc
@@ -0,0 +1,6374 @@
+|// Low-level VM code for x86 CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
+|
+|.if P64
+|.arch x64
+|.else
+|.arch x86
+|.endif
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|//-----------------------------------------------------------------------
+|
+|.if P64
+|.define X64, 1
+|.define SSE, 1
+|.if WIN
+|.define X64WIN, 1
+|.endif
+|.endif
+|
+|// Fixed register assignments for the interpreter.
+|// This is very fragile and has many dependencies. Caveat emptor.
+|.define BASE,		edx		// Not C callee-save, refetched anyway.
+|.if not X64
+|.define KBASE,		edi		// Must be C callee-save.
+|.define KBASEa,	KBASE
+|.define PC,		esi		// Must be C callee-save.
+|.define PCa,		PC
+|.define DISPATCH,	ebx		// Must be C callee-save.
+|.elif X64WIN
+|.define KBASE,		edi		// Must be C callee-save.
+|.define KBASEa,	rdi
+|.define PC,		esi		// Must be C callee-save.
+|.define PCa,		rsi
+|.define DISPATCH,	ebx		// Must be C callee-save.
+|.else
+|.define KBASE,		r15d		// Must be C callee-save.
+|.define KBASEa,	r15
+|.define PC,		ebx		// Must be C callee-save.
+|.define PCa,		rbx
+|.define DISPATCH,	r14d		// Must be C callee-save.
+|.endif
+|
+|.define RA,		ecx
+|.define RAH,		ch
+|.define RAL,		cl
+|.define RB,		ebp		// Must be ebp (C callee-save).
+|.define RC,		eax		// Must be eax.
+|.define RCW,		ax
+|.define RCH,		ah
+|.define RCL,		al
+|.define OP,		RB
+|.define RD,		RC
+|.define RDW,		RCW
+|.define RDL,		RCL
+|.if X64
+|.define RAa, rcx
+|.define RBa, rbp
+|.define RCa, rax
+|.define RDa, rax
+|.else
+|.define RAa, RA
+|.define RBa, RB
+|.define RCa, RC
+|.define RDa, RD
+|.endif
+|
+|.if not X64
+|.define FCARG1,	ecx		// x86 fastcall arguments.
+|.define FCARG2,	edx
+|.elif X64WIN
+|.define CARG1,		rcx		// x64/WIN64 C call arguments.
+|.define CARG2,		rdx
+|.define CARG3,		r8
+|.define CARG4,		r9
+|.define CARG1d,	ecx
+|.define CARG2d,	edx
+|.define CARG3d,	r8d
+|.define CARG4d,	r9d
+|.define FCARG1,	CARG1d		// Upwards compatible to x86 fastcall.
+|.define FCARG2,	CARG2d
+|.else
+|.define CARG1,		rdi		// x64/POSIX C call arguments.
+|.define CARG2,		rsi
+|.define CARG3,		rdx
+|.define CARG4,		rcx
+|.define CARG5,		r8
+|.define CARG6,		r9
+|.define CARG1d,	edi
+|.define CARG2d,	esi
+|.define CARG3d,	edx
+|.define CARG4d,	ecx
+|.define CARG5d,	r8d
+|.define CARG6d,	r9d
+|.define FCARG1,	CARG1d		// Simulate x86 fastcall.
+|.define FCARG2,	CARG2d
+|.endif
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS,		int
+|.type TRACE,		GCtrace
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|//-----------------------------------------------------------------------
+|.if not X64		// x86 stack layout.
+|
+|.define CFRAME_SPACE,	aword*7			// Delta for esp (see <--).
+|.macro saveregs_
+|  push edi; push esi; push ebx
+|  sub esp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push ebp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add esp, CFRAME_SPACE
+|  pop ebx; pop esi; pop edi; pop ebp
+|.endmacro
+|
+|.define SAVE_ERRF,	aword [esp+aword*15]	// vm_pcall/vm_cpcall only.
+|.define SAVE_NRES,	aword [esp+aword*14]
+|.define SAVE_CFRAME,	aword [esp+aword*13]
+|.define SAVE_L,	aword [esp+aword*12]
+|//----- 16 byte aligned, ^^^ arguments from C caller
+|.define SAVE_RET,	aword [esp+aword*11]	//<-- esp entering interpreter.
+|.define SAVE_R4,	aword [esp+aword*10]
+|.define SAVE_R3,	aword [esp+aword*9]
+|.define SAVE_R2,	aword [esp+aword*8]
+|//----- 16 byte aligned
+|.define SAVE_R1,	aword [esp+aword*7]	//<-- esp after register saves.
+|.define SAVE_PC,	aword [esp+aword*6]
+|.define TMP2,		aword [esp+aword*5]
+|.define TMP1,		aword [esp+aword*4]
+|//----- 16 byte aligned
+|.define ARG4,		aword [esp+aword*3]
+|.define ARG3,		aword [esp+aword*2]
+|.define ARG2,		aword [esp+aword*1]
+|.define ARG1,		aword [esp]		//<-- esp while in interpreter.
+|//----- 16 byte aligned, ^^^ arguments for C callee
+|
+|// FPARGx overlaps ARGx and ARG(x+1) on x86.
+|.define FPARG3,	qword [esp+qword*1]
+|.define FPARG1,	qword [esp]
+|// TMPQ overlaps TMP1/TMP2. ARG5/MULTRES overlap TMP1/TMP2 (and TMPQ).
+|.define TMPQ,		qword [esp+aword*4]
+|.define TMP3,		ARG4
+|.define ARG5,		TMP1
+|.define TMPa,		TMP1
+|.define MULTRES,	TMP2
+|
+|// Arguments for vm_call and vm_pcall.
+|.define INARG_BASE,	SAVE_CFRAME		// Overwritten by SAVE_CFRAME!
+|
+|// Arguments for vm_cpcall.
+|.define INARG_CP_CALL,	SAVE_ERRF
+|.define INARG_CP_UD,	SAVE_NRES
+|.define INARG_CP_FUNC,	SAVE_CFRAME
+|
+|//-----------------------------------------------------------------------
+|.elif X64WIN		// x64/Windows stack layout
+|
+|.define CFRAME_SPACE,	aword*5			// Delta for rsp (see <--).
+|.macro saveregs_
+|  push rdi; push rsi; push rbx
+|  sub rsp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push rbp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add rsp, CFRAME_SPACE
+|  pop rbx; pop rsi; pop rdi; pop rbp
+|.endmacro
+|
+|.define SAVE_CFRAME,	aword [rsp+aword*13]
+|.define SAVE_PC,	dword [rsp+dword*25]
+|.define SAVE_L,	dword [rsp+dword*24]
+|.define SAVE_ERRF,	dword [rsp+dword*23]
+|.define SAVE_NRES,	dword [rsp+dword*22]
+|.define TMP2,		dword [rsp+dword*21]
+|.define TMP1,		dword [rsp+dword*20]
+|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by interpreter
+|.define SAVE_RET,	aword [rsp+aword*9]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*8]
+|.define SAVE_R3,	aword [rsp+aword*7]
+|.define SAVE_R2,	aword [rsp+aword*6]
+|.define SAVE_R1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.define ARG5,		aword [rsp+aword*4]
+|.define CSAVE_4,	aword [rsp+aword*3]
+|.define CSAVE_3,	aword [rsp+aword*2]
+|.define CSAVE_2,	aword [rsp+aword*1]
+|.define CSAVE_1,	aword [rsp]		//<-- rsp while in interpreter.
+|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by callee
+|
+|// TMPQ overlaps TMP1/TMP2. MULTRES overlaps TMP2 (and TMPQ).
+|.define TMPQ,		qword [rsp+aword*10]
+|.define MULTRES,	TMP2
+|.define TMPa,		ARG5
+|.define ARG5d,		dword [rsp+aword*4]
+|.define TMP3,		ARG5d
+|
+|//-----------------------------------------------------------------------
+|.else			// x64/POSIX stack layout
+|
+|.define CFRAME_SPACE,	aword*5			// Delta for rsp (see <--).
+|.macro saveregs_
+|  push rbx; push r15; push r14
+|  sub rsp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push rbp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add rsp, CFRAME_SPACE
+|  pop r14; pop r15; pop rbx; pop rbp
+|.endmacro
+|
+|//----- 16 byte aligned,
+|.define SAVE_RET,	aword [rsp+aword*9]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*8]
+|.define SAVE_R3,	aword [rsp+aword*7]
+|.define SAVE_R2,	aword [rsp+aword*6]
+|.define SAVE_R1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.define SAVE_CFRAME,	aword [rsp+aword*4]
+|.define SAVE_PC,	dword [rsp+dword*7]
+|.define SAVE_L,	dword [rsp+dword*6]
+|.define SAVE_ERRF,	dword [rsp+dword*5]
+|.define SAVE_NRES,	dword [rsp+dword*4]
+|.define TMPa,		aword [rsp+aword*1]
+|.define TMP2,		dword [rsp+dword*1]
+|.define TMP1,		dword [rsp]		//<-- rsp while in interpreter.
+|//----- 16 byte aligned
+|
+|// TMPQ overlaps TMP1/TMP2. MULTRES overlaps TMP2 (and TMPQ).
+|.define TMPQ,		qword [rsp]
+|.define TMP3,		dword [rsp+aword*1]
+|.define MULTRES,	TMP2
+|
+|.endif
+|
+|//-----------------------------------------------------------------------
+|
+|// Instruction headers.
+|.macro ins_A; .endmacro
+|.macro ins_AD; .endmacro
+|.macro ins_AJ; .endmacro
+|.macro ins_ABC; movzx RB, RCH; movzx RC, RCL; .endmacro
+|.macro ins_AB_; movzx RB, RCH; .endmacro
+|.macro ins_A_C; movzx RC, RCL; .endmacro
+|.macro ins_AND; not RDa; .endmacro
+|
+|// Instruction decode+dispatch. Carefully tuned (nope, lodsd is not faster).
+|.macro ins_NEXT
+|  mov RC, [PC]
+|  movzx RA, RCH
+|  movzx OP, RCL
+|  add PC, 4
+|  shr RC, 16
+|.if X64
+|  jmp aword [DISPATCH+OP*8]
+|.else
+|  jmp aword [DISPATCH+OP*4]
+|.endif
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  // Around 10%-30% slower on Core2, a lot more slower on P4.
+|  .macro ins_next
+|    jmp ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC, RD = nargs+1, [BASE-4] = PC
+|  mov PC, LFUNC:RB->pc
+|  mov RA, [PC]
+|  movzx OP, RAL
+|  movzx RA, RAH
+|  add PC, 4
+|.if X64
+|  jmp aword [DISPATCH+OP*8]
+|.else
+|  jmp aword [DISPATCH+OP*4]
+|.endif
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC, RD = nargs+1
+|  mov [BASE-4], PC
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checktp, reg, tp;  cmp dword [BASE+reg*8+4], tp; .endmacro
+|.macro checknum, reg, target; checktp reg, LJ_TISNUM; jae target; .endmacro
+|.macro checkint, reg, target; checktp reg, LJ_TISNUM; jne target; .endmacro
+|.macro checkstr, reg, target; checktp reg, LJ_TSTR; jne target; .endmacro
+|.macro checktab, reg, target; checktp reg, LJ_TTAB; jne target; .endmacro
+|
+|// These operands must be used with movzx.
+|.define PC_OP, byte [PC-4]
+|.define PC_RA, byte [PC-3]
+|.define PC_RB, byte [PC-1]
+|.define PC_RC, byte [PC-2]
+|.define PC_RD, word [PC-2]
+|
+|.macro branchPC, reg
+|  lea PC, [PC+reg*4-BCBIAS_J*4]
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|// Decrement hashed hotcount and trigger trace recorder if zero.
+|.macro hotloop, reg
+|  mov reg, PC
+|  shr reg, 1
+|  and reg, HOTCOUNT_PCMASK
+|  sub word [DISPATCH+reg+GG_DISP2HOT], HOTCOUNT_LOOP
+|  jb ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall, reg
+|  mov reg, PC
+|  shr reg, 1
+|  and reg, HOTCOUNT_PCMASK
+|  sub word [DISPATCH+reg+GG_DISP2HOT], HOTCOUNT_CALL
+|  jb ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state.
+|.macro set_vmstate, st
+|  mov dword [DISPATCH+DISPATCH_GL(vmstate)], ~LJ_VMST_..st
+|.endmacro
+|
+|// x87 compares.
+|.macro fcomparepp			// Compare and pop st0 >< st1.
+|  fucomip st1
+|  fpop
+|.endmacro
+|
+|.macro fdup; fld st0; .endmacro
+|.macro fpop1; fstp st1; .endmacro
+|
+|// Synthesize SSE FP constants.
+|.macro sseconst_abs, reg, tmp		// Synthesize abs mask.
+|.if X64
+|  mov64 tmp, U64x(7fffffff,ffffffff); movd reg, tmp
+|.else
+|  pxor reg, reg; pcmpeqd reg, reg; psrlq reg, 1
+|.endif
+|.endmacro
+|
+|.macro sseconst_hi, reg, tmp, val	// Synthesize hi-32 bit const.
+|.if X64
+|  mov64 tmp, U64x(val,00000000); movd reg, tmp
+|.else
+|  mov tmp, 0x .. val; movd reg, tmp; pshufd reg, reg, 0x51
+|.endif
+|.endmacro
+|
+|.macro sseconst_sign, reg, tmp		// Synthesize sign mask.
+|  sseconst_hi reg, tmp, 80000000
+|.endmacro
+|.macro sseconst_1, reg, tmp		// Synthesize 1.0.
+|  sseconst_hi reg, tmp, 3ff00000
+|.endmacro
+|.macro sseconst_m1, reg, tmp		// Synthesize -1.0.
+|  sseconst_hi reg, tmp, bff00000
+|.endmacro
+|.macro sseconst_2p52, reg, tmp		// Synthesize 2^52.
+|  sseconst_hi reg, tmp, 43300000
+|.endmacro
+|.macro sseconst_tobit, reg, tmp	// Synthesize 2^52 + 2^51.
+|  sseconst_hi reg, tmp, 43380000
+|.endmacro
+|
+|// Move table write barrier back. Overwrites reg.
+|.macro barrierback, tab, reg
+|  and byte tab->marked, (uint8_t)~LJ_GC_BLACK	// black2gray(tab)
+|  mov reg, [DISPATCH+DISPATCH_GL(gc.grayagain)]
+|  mov [DISPATCH+DISPATCH_GL(gc.grayagain)], tab
+|  mov tab->gclist, reg
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  test PC, FRAME_P
+  |  jz ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  and PC, -8
+  |  sub BASE, PC			// Restore caller base.
+  |  lea RAa, [RA+PC-8]			// Rebase RA and prepend one result.
+  |  mov PC, [BASE-4]			// Fetch PC of previous frame.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |  mov dword [BASE+RA+4], LJ_TTRUE	// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  add RD, 1				// RD = nresults+1
+  |  jz ->vm_unwind_yield
+  |  mov MULTRES, RD
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultofs, RD = nresults+1 (= MULTRES), PC = return
+  |  xor PC, FRAME_C
+  |  test PC, FRAME_TYPE
+  |  jnz ->vm_returnp
+  |
+  |  // Return to C.
+  |  set_vmstate C
+  |  and PC, -8
+  |  sub PC, BASE
+  |  neg PC				// Previous base = BASE - delta.
+  |
+  |  sub RD, 1
+  |  jz >2
+  |1:  // Move results down.
+  |.if X64
+  |  mov RBa, [BASE+RA]
+  |  mov [BASE-8], RBa
+  |.else
+  |  mov RB, [BASE+RA]
+  |  mov [BASE-8], RB
+  |  mov RB, [BASE+RA+4]
+  |  mov [BASE-4], RB
+  |.endif
+  |  add BASE, 8
+  |  sub RD, 1
+  |  jnz <1
+  |2:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, PC
+  |3:
+  |  mov RD, MULTRES
+  |  mov RA, SAVE_NRES			// RA = wanted nresults+1
+  |4:
+  |  cmp RA, RD
+  |  jne >6				// More/less results wanted?
+  |5:
+  |  sub BASE, 8
+  |  mov L:RB->top, BASE
+  |
+  |->vm_leave_cp:
+  |  mov RAa, SAVE_CFRAME		// Restore previous C frame.
+  |  mov L:RB->cframe, RAa
+  |  xor eax, eax			// Ok return status for vm_pcall.
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  ret
+  |
+  |6:
+  |  jb >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  cmp BASE, L:RB->maxstack
+  |  ja >8
+  |  mov dword [BASE-4], LJ_TNIL
+  |  add BASE, 8
+  |  add RD, 1
+  |  jmp <4
+  |
+  |7:  // Less results wanted.
+  |  test RA, RA
+  |  jz <5				// But check for LUA_MULTRET+1.
+  |  sub RA, RD				// Negative result!
+  |  lea BASE, [BASE+RA*8]		// Correct top.
+  |  jmp <5
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  mov L:RB->top, BASE		// Save current top held in BASE (yes).
+  |  mov MULTRES, RD			// Need to fill only remainder with nil.
+  |  mov FCARG2, RA
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |  mov BASE, L:RB->top		// Need the (realloced) L->top in BASE.
+  |  jmp <3
+  |
+  |->vm_unwind_yield:
+  |  mov al, LUA_YIELD
+  |  jmp ->vm_unwind_c_eh
+  |
+  |->vm_unwind_c@8:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |.if X64
+  |  mov eax, CARG2d			// Error return status for vm_pcall.
+  |  mov rsp, CARG1
+  |.else
+  |  mov eax, FCARG2			// Error return status for vm_pcall.
+  |  mov esp, FCARG1
+  |.endif
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  mov L:RB, SAVE_L
+  |  mov GL:RB, L:RB->glref
+  |  mov dword GL:RB->vmstate, ~LJ_VMST_C
+  |  jmp ->vm_leave_unw
+  |
+  |->vm_unwind_rethrow:
+  |.if X64 and not X64WIN
+  |  mov FCARG1, SAVE_L
+  |  mov FCARG2, eax
+  |  restoreregs
+  |  jmp extern lj_err_throw@8		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |->vm_unwind_ff@4:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |.if X64
+  |  and CARG1, CFRAME_RAWMASK
+  |  mov rsp, CARG1
+  |.else
+  |  and FCARG1, CFRAME_RAWMASK
+  |  mov esp, FCARG1
+  |.endif
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  mov L:RB, SAVE_L
+  |  mov RAa, -8			// Results start at BASE+RA = BASE-8.
+  |  mov RD, 1+1			// Really 1+2 results, incr. later.
+  |  mov BASE, L:RB->base
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |  mov PC, [BASE-4]			// Fetch PC of previous frame.
+  |  mov dword [BASE-4], LJ_TFALSE	// Prepend false to error message.
+  |  set_vmstate INTERP
+  |  jmp ->vm_returnc			// Increments RD/MULTRES and returns.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  mov FCARG2, LUA_MINSTACK
+  |  jmp >2
+  |
+  |->vm_growstack_v:			// Grow stack for vararg Lua function.
+  |  sub RD, 8
+  |  jmp >1
+  |
+  |->vm_growstack_f:			// Grow stack for fixarg Lua function.
+  |  // BASE = new base, RD = nargs+1, RB = L, PC = first PC
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |1:
+  |  movzx RA, byte [PC-4+PC2PROTO(framesize)]
+  |  add PC, 4				// Must point after first instruction.
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov SAVE_PC, PC
+  |  mov FCARG2, RA
+  |2:
+  |  // RB = L, L->base = new base, L->top = top
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  mov LFUNC:RB, [BASE-8]
+  |  sub RD, BASE
+  |  shr RD, 3
+  |  add NARGS:RD, 1
+  |  // BASE = new base, RB = LFUNC, RD = nargs+1
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |.if X64
+  |  mov L:RB, CARG1d			// Caveat: CARG1d may be RA.
+  |  mov SAVE_L, CARG1d
+  |  mov RA, CARG2d
+  |.else
+  |  mov L:RB, SAVE_L
+  |  mov RA, INARG_BASE			// Caveat: overlaps SAVE_CFRAME!
+  |.endif
+  |  mov PC, FRAME_CP
+  |  xor RD, RD
+  |  lea KBASEa, [esp+CFRAME_RESUME]
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |  mov L:RB->cframe, KBASEa
+  |  mov SAVE_PC, RD			// Any value outside of bytecode is ok.
+  |  mov SAVE_CFRAME, RDa
+  |.if X64
+  |  mov SAVE_NRES, RD
+  |  mov SAVE_ERRF, RD
+  |.endif
+  |  cmp byte L:RB->status, RDL
+  |  je >3				// Initial resume (like a call).
+  |
+  |  // Resume after yield (like a return).
+  |  set_vmstate INTERP
+  |  mov byte L:RB->status, RDL
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  sub RD, RA
+  |  shr RD, 3
+  |  add RD, 1				// RD = nresults+1
+  |  sub RA, BASE			// RA = resultofs
+  |  mov PC, [BASE-4]
+  |  mov MULTRES, RD
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z
+  |  jmp ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  mov PC, FRAME_CP
+  |.if X64
+  |  mov SAVE_ERRF, CARG4d
+  |.endif
+  |  jmp >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  mov PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |.if X64
+  |  mov SAVE_NRES, CARG3d
+  |  mov L:RB, CARG1d			// Caveat: CARG1d may be RA.
+  |  mov SAVE_L, CARG1d
+  |  mov RA, CARG2d
+  |.else
+  |  mov L:RB, SAVE_L
+  |  mov RA, INARG_BASE			// Caveat: overlaps SAVE_CFRAME!
+  |.endif
+  |
+  |  mov KBASEa, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASEa
+  |  mov SAVE_PC, L:RB			// Any value outside of bytecode is ok.
+  |.if X64
+  |  mov L:RB->cframe, rsp
+  |.else
+  |  mov L:RB->cframe, esp
+  |.endif
+  |
+  |2:  // Entry point for vm_cpcall below (RA = base, RB = L, PC = ftype).
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |
+  |3:  // Entry point for vm_resume above (RA = base, RB = L, PC = ftype).
+  |  set_vmstate INTERP
+  |  mov BASE, L:RB->base		// BASE = old base (used in vmeta_call).
+  |  add PC, RA
+  |  sub PC, BASE			// PC = frame delta + frame type
+  |
+  |  mov RD, L:RB->top
+  |  sub RD, RA
+  |  shr NARGS:RD, 3
+  |  add NARGS:RD, 1			// RD = nargs+1
+  |
+  |->vm_call_dispatch:
+  |  mov LFUNC:RB, [RA-8]
+  |  cmp dword [RA-4], LJ_TFUNC
+  |  jne ->vmeta_call			// Ensure KBASE defined and != BASE.
+  |
+  |->vm_call_dispatch_f:
+  |  mov BASE, RA
+  |  ins_call
+  |  // BASE = new base, RB = func, RD = nargs+1, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |.if X64
+  |  mov L:RB, CARG1d			// Caveat: CARG1d may be RA.
+  |  mov SAVE_L, CARG1d
+  |.else
+  |  mov L:RB, SAVE_L
+  |  // Caveat: INARG_CP_* and SAVE_CFRAME/SAVE_NRES/SAVE_ERRF overlap!
+  |  mov RC, INARG_CP_UD		// Get args before they are overwritten.
+  |  mov RA, INARG_CP_FUNC
+  |  mov BASE, INARG_CP_CALL
+  |.endif
+  |  mov SAVE_PC, L:RB			// Any value outside of bytecode is ok.
+  |
+  |  mov KBASE, L:RB->stack		// Compute -savestack(L, L->top).
+  |  sub KBASE, L:RB->top
+  |  mov SAVE_ERRF, 0			// No error function.
+  |  mov SAVE_NRES, KBASE		// Neg. delta means cframe w/o frame.
+  |  // Handler may change cframe_nres(L->cframe) or cframe_errfunc(L->cframe).
+  |
+  |.if X64
+  |  mov KBASEa, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASEa
+  |  mov L:RB->cframe, rsp
+  |
+  |  call CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |.else
+  |  mov ARG3, RC			// Have to copy args downwards.
+  |  mov ARG2, RA
+  |  mov ARG1, L:RB
+  |
+  |  mov KBASE, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASE
+  |  mov L:RB->cframe, esp
+  |
+  |  call BASE			// (lua_State *L, lua_CFunction func, void *ud)
+  |.endif
+  |  // TValue * (new base) or NULL returned in eax (RC).
+  |  test RC, RC
+  |  jz ->vm_leave_cp			// No base? Just remove C frame.
+  |  mov RA, RC
+  |  mov PC, FRAME_CP
+  |  jmp <2				// Else continue with the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultofs, RD = nresults+1 (also in MULTRES)
+  |  add RA, BASE
+  |  and PC, -8
+  |  mov RB, BASE
+  |  sub BASE, PC			// Restore caller BASE.
+  |  mov dword [RA+RD*8-4], LJ_TNIL	// Ensure one valid arg.
+  |  mov RC, RA				// ... in [RC]
+  |  mov PC, [RB-12]			// Restore PC from [cont|PC].
+  |.if X64
+  |  movsxd RAa, dword [RB-16]		// May be negative on WIN64 with debug.
+  |.if FFI
+  |  cmp RA, 1
+  |  jbe >1
+  |.endif
+  |  lea KBASEa, qword [=>0]
+  |  add RAa, KBASEa
+  |.else
+  |  mov RA, dword [RB-16]
+  |.if FFI
+  |  cmp RA, 1
+  |  jbe >1
+  |.endif
+  |.endif
+  |  mov LFUNC:KBASE, [BASE-8]
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  // BASE = base, RC = result, RB = meta base
+  |  jmp RAa				// Jump to continuation.
+  |
+  |.if FFI
+  |1:
+  |  je ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: Tail call from C function.
+  |  sub RB, BASE
+  |  shr RB, 3
+  |  lea RD, [RB-1]
+  |  jmp ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// BASE = base, RC = result, RB = mbase
+  |  movzx RA, PC_RB
+  |  sub RB, 16
+  |  lea RA, [BASE+RA*8]
+  |  sub RA, RB
+  |  je ->cont_ra
+  |  neg RA
+  |  shr RA, 3
+  |.if X64WIN
+  |  mov CARG3d, RA
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE
+  |  mov RCa, [RC]
+  |  mov [RB], RCa
+  |  mov CARG2d, RB
+  |.elif X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE
+  |  mov CARG3d, RA
+  |  mov RAa, [RC]
+  |  mov [RB], RAa
+  |  mov CARG2d, RB
+  |.else
+  |  mov ARG3, RA
+  |  mov RA, [RC+4]
+  |  mov RC, [RC]
+  |  mov [RB+4], RA
+  |  mov [RB], RC
+  |  mov ARG2, RB
+  |.endif
+  |  jmp ->BC_CAT_Z
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets:
+  |  mov TMP1, RC			// RC = GCstr *
+  |  mov TMP2, LJ_TSTR
+  |  lea RCa, TMP1			// Store temp. TValue in TMP1/TMP2.
+  |  cmp PC_OP, BC_GGET
+  |  jne >1
+  |  lea RA, [DISPATCH+DISPATCH_GL(tmptv)]  // Store fn->l.env in g->tmptv.
+  |  mov [RA], TAB:RB			// RB = GCtab *
+  |  mov dword [RA+4], LJ_TTAB
+  |  mov RB, RA
+  |  jmp >2
+  |
+  |->vmeta_tgetb:
+  |  movzx RC, PC_RC
+  |.if DUALNUM
+  |  mov TMP2, LJ_TISNUM
+  |  mov TMP1, RC
+  |.elif SSE
+  |  cvtsi2sd xmm0, RC
+  |  movsd TMPQ, xmm0
+  |.else
+  |  mov ARG4, RC
+  |  fild ARG4
+  |  fstp TMPQ
+  |.endif
+  |  lea RCa, TMPQ			// Store temp. TValue in TMPQ.
+  |  jmp >1
+  |
+  |->vmeta_tgetv:
+  |  movzx RC, PC_RC			// Reload TValue *k from RC.
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  movzx RB, PC_RB			// Reload TValue *t from RB.
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |.if X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RB
+  |  mov CARG3, RCa			// May be 64 bit ptr to stack.
+  |  mov L:RB, L:CARG1d
+  |.else
+  |  mov ARG2, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // TValue * (finished) or NULL (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz >3
+  |->cont_ra:				// BASE = base, RC = result
+  |  movzx RA, PC_RA
+  |.if X64
+  |  mov RBa, [RC]
+  |  mov [BASE+RA*8], RBa
+  |.else
+  |  mov RB, [RC+4]
+  |  mov RC, [RC]
+  |  mov [BASE+RA*8+4], RB
+  |  mov [BASE+RA*8], RC
+  |.endif
+  |  ins_next
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  mov RA, L:RB->top
+  |  mov [RA-12], PC			// [cont|PC]
+  |  lea PC, [RA+FRAME_CONT]
+  |  sub PC, BASE
+  |  mov LFUNC:RB, [RA-8]		// Guaranteed to be a function here.
+  |  mov NARGS:RD, 2+1			// 2 args for func(t, k).
+  |  jmp ->vm_call_dispatch_f
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets:
+  |  mov TMP1, RC			// RC = GCstr *
+  |  mov TMP2, LJ_TSTR
+  |  lea RCa, TMP1			// Store temp. TValue in TMP1/TMP2.
+  |  cmp PC_OP, BC_GSET
+  |  jne >1
+  |  lea RA, [DISPATCH+DISPATCH_GL(tmptv)]  // Store fn->l.env in g->tmptv.
+  |  mov [RA], TAB:RB			// RB = GCtab *
+  |  mov dword [RA+4], LJ_TTAB
+  |  mov RB, RA
+  |  jmp >2
+  |
+  |->vmeta_tsetb:
+  |  movzx RC, PC_RC
+  |.if DUALNUM
+  |  mov TMP2, LJ_TISNUM
+  |  mov TMP1, RC
+  |.elif SSE
+  |  cvtsi2sd xmm0, RC
+  |  movsd TMPQ, xmm0
+  |.else
+  |  mov ARG4, RC
+  |  fild ARG4
+  |  fstp TMPQ
+  |.endif
+  |  lea RCa, TMPQ			// Store temp. TValue in TMPQ.
+  |  jmp >1
+  |
+  |->vmeta_tsetv:
+  |  movzx RC, PC_RC			// Reload TValue *k from RC.
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  movzx RB, PC_RB			// Reload TValue *t from RB.
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |.if X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RB
+  |  mov CARG3, RCa			// May be 64 bit ptr to stack.
+  |  mov L:RB, L:CARG1d
+  |.else
+  |  mov ARG2, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // TValue * (finished) or NULL (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  movzx RA, PC_RA
+  |.if X64
+  |  mov RBa, [BASE+RA*8]
+  |  mov [RC], RBa
+  |.else
+  |  mov RB, [BASE+RA*8+4]
+  |  mov RA, [BASE+RA*8]
+  |  mov [RC+4], RB
+  |  mov [RC], RA
+  |.endif
+  |->cont_nop:				// BASE = base, (RC = result)
+  |  ins_next
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  mov RA, L:RB->top
+  |  mov [RA-12], PC			// [cont|PC]
+  |  movzx RC, PC_RA
+  |  // Copy value to third argument.
+  |.if X64
+  |  mov RBa, [BASE+RC*8]
+  |  mov [RA+16], RBa
+  |.else
+  |  mov RB, [BASE+RC*8+4]
+  |  mov RC, [BASE+RC*8]
+  |  mov [RA+20], RB
+  |  mov [RA+16], RC
+  |.endif
+  |  lea PC, [RA+FRAME_CONT]
+  |  sub PC, BASE
+  |  mov LFUNC:RB, [RA-8]		// Guaranteed to be a function here.
+  |  mov NARGS:RD, 3+1			// 3 args for func(t, k, v).
+  |  jmp ->vm_call_dispatch_f
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |.if X64
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d == BASE.
+  |.if X64WIN
+  |  lea CARG3d, [BASE+RD*8]
+  |  lea CARG2d, [BASE+RA*8]
+  |.else
+  |  lea CARG2d, [BASE+RA*8]
+  |  lea CARG3d, [BASE+RD*8]
+  |.endif
+  |  mov CARG1d, L:RB			// Caveat: CARG1d/CARG4d == RA.
+  |  movzx CARG4d, PC_OP
+  |.else
+  |  movzx RB, PC_OP
+  |  lea RD, [BASE+RD*8]
+  |  lea RA, [BASE+RA*8]
+  |  mov ARG4, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RD
+  |  mov ARG2, RA
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_comp	// (lua_State *L, TValue *o1, *o2, int op)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |3:
+  |  mov BASE, L:RB->base
+  |  cmp RC, 1
+  |  ja ->vmeta_binop
+  |4:
+  |  lea PC, [PC+4]
+  |  jb >6
+  |5:
+  |  movzx RD, PC_RD
+  |  branchPC RD
+  |6:
+  |  ins_next
+  |
+  |->cont_condt:			// BASE = base, RC = result
+  |  add PC, 4
+  |  cmp dword [RC+4], LJ_TISTRUECOND	// Branch if result is true.
+  |  jb <5
+  |  jmp <6
+  |
+  |->cont_condf:			// BASE = base, RC = result
+  |  cmp dword [RC+4], LJ_TISTRUECOND	// Branch if result is false.
+  |  jmp <4
+  |
+  |->vmeta_equal:
+  |  sub PC, 4
+  |.if X64WIN
+  |  mov CARG3d, RD
+  |  mov CARG4d, RB
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d == BASE.
+  |  mov CARG2d, RA
+  |  mov CARG1d, L:RB			// Caveat: CARG1d == RA.
+  |.elif X64
+  |  mov CARG2d, RA
+  |  mov CARG4d, RB			// Caveat: CARG4d == RA.
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG3d == BASE.
+  |  mov CARG3d, RD
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov ARG4, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RD
+  |  mov ARG2, RA
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_equal	// (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |  jmp <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  sub PC, 4
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG1, L:RB
+  |  mov FCARG2, dword [PC-4]
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_equal_cd@8	// (lua_State *L, BCIns ins)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |  jmp <3
+  |.endif
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vno:
+  |.if DUALNUM
+  |  movzx RB, PC_RB
+  |.endif
+  |->vmeta_arith_vn:
+  |  lea RC, [KBASE+RC*8]
+  |  jmp >1
+  |
+  |->vmeta_arith_nvo:
+  |.if DUALNUM
+  |  movzx RC, PC_RC
+  |.endif
+  |->vmeta_arith_nv:
+  |  lea RC, [KBASE+RC*8]
+  |  lea RB, [BASE+RB*8]
+  |  xchg RB, RC
+  |  jmp >2
+  |
+  |->vmeta_unm:
+  |  lea RC, [BASE+RD*8]
+  |  mov RB, RC
+  |  jmp >2
+  |
+  |->vmeta_arith_vvo:
+  |.if DUALNUM
+  |  movzx RB, PC_RB
+  |.endif
+  |->vmeta_arith_vv:
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |  lea RA, [BASE+RA*8]
+  |.if X64WIN
+  |  mov CARG3d, RB
+  |  mov CARG4d, RC
+  |  movzx RC, PC_OP
+  |  mov ARG5d, RC
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d == BASE.
+  |  mov CARG2d, RA
+  |  mov CARG1d, L:RB			// Caveat: CARG1d == RA.
+  |.elif X64
+  |  movzx CARG5d, PC_OP
+  |  mov CARG2d, RA
+  |  mov CARG4d, RC			// Caveat: CARG4d == RA.
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE		// Caveat: CARG3d == BASE.
+  |  mov CARG3d, RB
+  |  mov L:RB, L:CARG1d
+  |.else
+  |  mov ARG3, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG4, RC
+  |  movzx RC, PC_OP
+  |  mov ARG2, RA
+  |  mov ARG5, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_arith	// (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // NULL (finished) or TValue * (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = base, RC = new base, stack = cont/func/o1/o2
+  |  mov RA, RC
+  |  sub RC, BASE
+  |  mov [RA-12], PC			// [cont|PC]
+  |  lea PC, [RC+FRAME_CONT]
+  |  mov NARGS:RD, 2+1			// 2 args for func(o1, o2).
+  |  jmp ->vm_call_dispatch
+  |
+  |->vmeta_len:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  lea FCARG2, [BASE+RD*8]		// Caveat: FCARG2 == BASE
+  |  mov L:FCARG1, L:RB
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_len@8		// (lua_State *L, TValue *o)
+  |  // NULL (retry) or TValue * (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+#if LJ_52
+  |  test RC, RC
+  |  jne ->vmeta_binop			// Binop call for compatibility.
+  |  movzx RD, PC_RD
+  |  mov TAB:FCARG1, [BASE+RD*8]
+  |  jmp ->BC_LEN_Z
+#else
+  |  jmp ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call_ra:
+  |  lea RA, [BASE+RA*8+8]
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // BASE = old base, RA = new base, RC = nargs+1, PC = return
+  |  mov TMP2, RA			// Save RA, RC for us.
+  |  mov TMP1, NARGS:RD
+  |  sub RA, 8
+  |.if X64
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RA
+  |  lea CARG3d, [RA+NARGS:RD*8]
+  |  mov CARG1d, L:RB			// Caveat: CARG1d may be RA.
+  |.else
+  |  lea RC, [RA+NARGS:RD*8]
+  |  mov L:RB, SAVE_L
+  |  mov ARG2, RA
+  |  mov ARG3, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE		// This is the callers base!
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  mov BASE, L:RB->base
+  |  mov RA, TMP2
+  |  mov NARGS:RD, TMP1
+  |  mov LFUNC:RB, [RA-8]
+  |  add NARGS:RD, 1
+  |  // This is fragile. L->base must not move, KBASE must always be defined.
+  |  cmp KBASE, BASE			// Continue with CALLT if flag set.
+  |  je ->BC_CALLT_Z
+  |  mov BASE, RA
+  |  ins_call				// Otherwise call resolved metamethod.
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG2, RA			// Caveat: FCARG2 == BASE
+  |  mov L:FCARG1, L:RB			// Caveat: FCARG1 == RA
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_for@8	// (lua_State *L, TValue *base)
+  |  mov BASE, L:RB->base
+  |  mov RC, [PC-4]
+  |  movzx RA, RCH
+  |  movzx OP, RCL
+  |  shr RC, 16
+  |.if X64
+  |  jmp aword [DISPATCH+OP*8+GG_DISP2STATIC]	// Retry FORI or JFORI.
+  |.else
+  |  jmp aword [DISPATCH+OP*4+GG_DISP2STATIC]	// Retry FORI or JFORI.
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  cmp NARGS:RD, 1+1;  jb ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  cmp NARGS:RD, 2+1;  jb ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |  .ffunc_1 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  fld qword [BASE]
+  |.endmacro
+  |
+  |.macro .ffunc_n, name, op
+  |  .ffunc_1 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  op
+  |  fld qword [BASE]
+  |.endmacro
+  |
+  |.macro .ffunc_nsse, name, op
+  |  .ffunc_1 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  op xmm0, qword [BASE]
+  |.endmacro
+  |
+  |.macro .ffunc_nsse, name
+  |  .ffunc_nsse name, movsd
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |  .ffunc_2 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM;  jae ->fff_fallback
+  |  fld qword [BASE]
+  |  fld qword [BASE+8]
+  |.endmacro
+  |
+  |.macro .ffunc_nnsse, name
+  |  .ffunc_2 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM;  jae ->fff_fallback
+  |  movsd xmm0, qword [BASE]
+  |  movsd xmm1, qword [BASE+8]
+  |.endmacro
+  |
+  |.macro .ffunc_nnr, name
+  |  .ffunc_2 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM;  jae ->fff_fallback
+  |  fld qword [BASE+8]
+  |  fld qword [BASE]
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses label 1.
+  |.macro ffgccheck
+  |  mov RB, [DISPATCH+DISPATCH_GL(gc.total)]
+  |  cmp RB, [DISPATCH+DISPATCH_GL(gc.threshold)]
+  |  jb >1
+  |  call ->fff_gcstep
+  |1:
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  mov RB, [BASE+4]
+  |  cmp RB, LJ_TISTRUECOND;  jae ->fff_fallback
+  |  mov PC, [BASE-4]
+  |  mov MULTRES, RD
+  |  mov [BASE-4], RB
+  |  mov RB, [BASE]
+  |  mov [BASE-8], RB
+  |  sub RD, 2
+  |  jz >2
+  |  mov RA, BASE
+  |1:
+  |  add RA, 8
+  |.if X64
+  |  mov RBa, [RA]
+  |  mov [RA-8], RBa
+  |.else
+  |  mov RB, [RA+4]
+  |  mov [RA-4], RB
+  |  mov RB, [RA]
+  |  mov [RA-8], RB
+  |.endif
+  |  sub RD, 1
+  |  jnz <1
+  |2:
+  |  mov RD, MULTRES
+  |  jmp ->fff_res_
+  |
+  |.ffunc_1 type
+  |  mov RB, [BASE+4]
+  |.if X64
+  |  mov RA, RB
+  |  sar RA, 15
+  |  cmp RA, -2
+  |  je >3
+  |.endif
+  |  mov RC, ~LJ_TNUMX
+  |  not RB
+  |  cmp RC, RB
+  |  cmova RC, RB
+  |2:
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov STR:RC, [CFUNC:RB+RC*8+((char *)(&((GCfuncC *)0)->upvalue))]
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TSTR
+  |  mov [BASE-8], STR:RC
+  |  jmp ->fff_res1
+  |.if X64
+  |3:
+  |  mov RC, ~LJ_TLIGHTUD
+  |  jmp <2
+  |.endif
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  mov RB, [BASE+4]
+  |  mov PC, [BASE-4]
+  |  cmp RB, LJ_TTAB;  jne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  mov TAB:RB, [BASE]
+  |  mov TAB:RB, TAB:RB->metatable
+  |2:
+  |  test TAB:RB, TAB:RB
+  |  mov dword [BASE-4], LJ_TNIL
+  |  jz ->fff_res1
+  |  mov STR:RC, [DISPATCH+DISPATCH_GL(gcroot)+4*(GCROOT_MMNAME+MM_metatable)]
+  |  mov dword [BASE-4], LJ_TTAB	// Store metatable as default result.
+  |  mov [BASE-8], TAB:RB
+  |  mov RA, TAB:RB->hmask
+  |  and RA, STR:RC->hash
+  |  imul RA, #NODE
+  |  add NODE:RA, TAB:RB->node
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  cmp dword NODE:RA->key.it, LJ_TSTR
+  |  jne >4
+  |  cmp dword NODE:RA->key.gcr, STR:RC
+  |  je >5
+  |4:
+  |  mov NODE:RA, NODE:RA->next
+  |  test NODE:RA, NODE:RA
+  |  jnz <3
+  |  jmp ->fff_res1			// Not found, keep default result.
+  |5:
+  |  mov RB, [RA+4]
+  |  cmp RB, LJ_TNIL;  je ->fff_res1	// Ditto for nil value.
+  |  mov RC, [RA]
+  |  mov [BASE-4], RB			// Return value of mt.__metatable.
+  |  mov [BASE-8], RC
+  |  jmp ->fff_res1
+  |
+  |6:
+  |  cmp RB, LJ_TUDATA;  je <1
+  |.if X64
+  |  cmp RB, LJ_TNUMX;  ja >8
+  |  cmp RB, LJ_TISNUM;  jbe >7
+  |  mov RB, LJ_TLIGHTUD
+  |  jmp >8
+  |7:
+  |.else
+  |  cmp RB, LJ_TISNUM;  ja >8
+  |.endif
+  |  mov RB, LJ_TNUMX
+  |8:
+  |  not RB
+  |  mov TAB:RB, [DISPATCH+RB*4+DISPATCH_GL(gcroot[GCROOT_BASEMT])]
+  |  jmp <2
+  |
+  |.ffunc_2 setmetatable
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  mov TAB:RB, [BASE]
+  |  cmp dword TAB:RB->metatable, 0;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TTAB;  jne ->fff_fallback
+  |  mov TAB:RC, [BASE+8]
+  |  mov TAB:RB->metatable, TAB:RC
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TTAB		// Return original table.
+  |  mov [BASE-8], TAB:RB
+  |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+  |  jz >1
+  |  // Possible write barrier. Table is black, but skip iswhite(mt) check.
+  |  barrierback TAB:RB, RC
+  |1:
+  |  jmp ->fff_res1
+  |
+  |.ffunc_2 rawget
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |.if X64WIN
+  |  mov RB, BASE			// Save BASE.
+  |  lea CARG3d, [BASE+8]
+  |  mov CARG2d, [BASE]			// Caveat: CARG2d == BASE.
+  |  mov CARG1d, SAVE_L
+  |.elif X64
+  |  mov RB, BASE			// Save BASE.
+  |  mov CARG2d, [BASE]
+  |  lea CARG3d, [BASE+8]		// Caveat: CARG3d == BASE.
+  |  mov CARG1d, SAVE_L
+  |.else
+  |  mov TAB:RD, [BASE]
+  |  mov L:RB, SAVE_L
+  |  mov ARG2, TAB:RD
+  |  mov ARG1, L:RB
+  |  mov RB, BASE			// Save BASE.
+  |  add BASE, 8
+  |  mov ARG3, BASE
+  |.endif
+  |  call extern lj_tab_get	// (lua_State *L, GCtab *t, cTValue *key)
+  |  // cTValue * returned in eax (RD).
+  |  mov BASE, RB			// Restore BASE.
+  |  // Copy table slot.
+  |.if X64
+  |  mov RBa, [RD]
+  |  mov PC, [BASE-4]
+  |  mov [BASE-8], RBa
+  |.else
+  |  mov RB, [RD]
+  |  mov RD, [RD+4]
+  |  mov PC, [BASE-4]
+  |  mov [BASE-8], RB
+  |  mov [BASE-4], RD
+  |.endif
+  |  jmp ->fff_res1
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  cmp NARGS:RD, 1+1;  jne ->fff_fallback	// Exactly one argument.
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >1
+  |  mov RB, dword [BASE]; jmp ->fff_resi
+  |1:
+  |  ja ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |.if SSE
+  |  movsd xmm0, qword [BASE]; jmp ->fff_resxmm0
+  |.else
+  |  fld qword [BASE]; jmp ->fff_resn
+  |.endif
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  mov PC, [BASE-4]
+  |  cmp dword [BASE+4], LJ_TSTR;  jne >3
+  |  // A __tostring method in the string base metatable is ignored.
+  |  mov STR:RD, [BASE]
+  |2:
+  |  mov dword [BASE-4], LJ_TSTR
+  |  mov [BASE-8], STR:RD
+  |  jmp ->fff_res1
+  |3:  // Handle numbers inline, unless a number base metatable is present.
+  |  cmp dword [BASE+4], LJ_TISNUM;  ja ->fff_fallback
+  |  cmp dword [DISPATCH+DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])], 0
+  |  jne ->fff_fallback
+  |  ffgccheck				// Caveat: uses label 1.
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Add frame since C call can throw.
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |.if X64 and not X64WIN
+  |  mov FCARG2, BASE			// Otherwise: FCARG2 == BASE
+  |.endif
+  |  mov L:FCARG1, L:RB
+  |.if DUALNUM
+  |  call extern lj_str_fromnumber@8	// (lua_State *L, cTValue *o)
+  |.else
+  |  call extern lj_str_fromnum@8	// (lua_State *L, lua_Number *np)
+  |.endif
+  |  // GCstr returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  jmp <2
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |  je >2				// Missing 2nd arg?
+  |1:
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Add frame since C call can throw.
+  |  mov L:RB->top, BASE		// Dummy frame length is ok.
+  |  mov PC, [BASE-4]
+  |.if X64WIN
+  |  lea CARG3d, [BASE+8]
+  |  mov CARG2d, [BASE]			// Caveat: CARG2d == BASE.
+  |  mov CARG1d, L:RB
+  |.elif X64
+  |  mov CARG2d, [BASE]
+  |  lea CARG3d, [BASE+8]		// Caveat: CARG3d == BASE.
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov TAB:RD, [BASE]
+  |  mov ARG2, TAB:RD
+  |  mov ARG1, L:RB
+  |  add BASE, 8
+  |  mov ARG3, BASE
+  |.endif
+  |  mov SAVE_PC, PC			// Needed for ITERN fallback.
+  |  call extern lj_tab_next	// (lua_State *L, GCtab *t, TValue *key)
+  |  // Flag returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  test RD, RD;  jz >3		// End of traversal?
+  |  // Copy key and value to results.
+  |.if X64
+  |  mov RBa, [BASE+8]
+  |  mov RDa, [BASE+16]
+  |  mov [BASE-8], RBa
+  |  mov [BASE], RDa
+  |.else
+  |  mov RB, [BASE+8]
+  |  mov RD, [BASE+12]
+  |  mov [BASE-8], RB
+  |  mov [BASE-4], RD
+  |  mov RB, [BASE+16]
+  |  mov RD, [BASE+20]
+  |  mov [BASE], RB
+  |  mov [BASE+4], RD
+  |.endif
+  |->fff_res2:
+  |  mov RD, 1+2
+  |  jmp ->fff_res
+  |2:  // Set missing 2nd arg to nil.
+  |  mov dword [BASE+12], LJ_TNIL
+  |  jmp <1
+  |3:  // End of traversal: return nil.
+  |  mov dword [BASE-4], LJ_TNIL
+  |  jmp ->fff_res1
+  |
+  |.ffunc_1 pairs
+  |  mov TAB:RB, [BASE]
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+#if LJ_52
+  |  cmp dword TAB:RB->metatable, 0; jne ->fff_fallback
+#endif
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov CFUNC:RD, CFUNC:RB->upvalue[0]
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TFUNC
+  |  mov [BASE-8], CFUNC:RD
+  |  mov dword [BASE+12], LJ_TNIL
+  |  mov RD, 1+3
+  |  jmp ->fff_res
+  |
+  |.ffunc_1 ipairs_aux
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |  mov PC, [BASE-4]
+  |.if DUALNUM
+  |  mov RD, dword [BASE+8]
+  |  add RD, 1
+  |  mov dword [BASE-4], LJ_TISNUM
+  |  mov dword [BASE-8], RD
+  |.elif SSE
+  |  movsd xmm0, qword [BASE+8]
+  |  sseconst_1 xmm1, RBa
+  |  addsd xmm0, xmm1
+  |  cvtsd2si RD, xmm0
+  |  movsd qword [BASE-8], xmm0
+  |.else
+  |  fld qword [BASE+8]
+  |  fld1
+  |  faddp st1
+  |  fist ARG1
+  |  fstp qword [BASE-8]
+  |  mov RD, ARG1
+  |.endif
+  |  mov TAB:RB, [BASE]
+  |  cmp RD, TAB:RB->asize;  jae >2	// Not in array part?
+  |  shl RD, 3
+  |  add RD, TAB:RB->array
+  |1:
+  |  cmp dword [RD+4], LJ_TNIL;  je ->fff_res0
+  |  // Copy array slot.
+  |.if X64
+  |  mov RBa, [RD]
+  |  mov [BASE], RBa
+  |.else
+  |  mov RB, [RD]
+  |  mov RD, [RD+4]
+  |  mov [BASE], RB
+  |  mov [BASE+4], RD
+  |.endif
+  |  jmp ->fff_res2
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  cmp dword TAB:RB->hmask, 0; je ->fff_res0
+  |  mov FCARG1, TAB:RB
+  |  mov RB, BASE			// Save BASE.
+  |  mov FCARG2, RD			// Caveat: FCARG2 == BASE
+  |  call extern lj_tab_getinth@8	// (GCtab *t, int32_t key)
+  |  // cTValue * or NULL returned in eax (RD).
+  |  mov BASE, RB
+  |  test RD, RD
+  |  jnz <1
+  |->fff_res0:
+  |  mov RD, 1+0
+  |  jmp ->fff_res
+  |
+  |.ffunc_1 ipairs
+  |  mov TAB:RB, [BASE]
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+#if LJ_52
+  |  cmp dword TAB:RB->metatable, 0; jne ->fff_fallback
+#endif
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov CFUNC:RD, CFUNC:RB->upvalue[0]
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TFUNC
+  |  mov [BASE-8], CFUNC:RD
+  |.if DUALNUM
+  |  mov dword [BASE+12], LJ_TISNUM
+  |  mov dword [BASE+8], 0
+  |.elif SSE
+  |  xorps xmm0, xmm0
+  |  movsd qword [BASE+8], xmm0
+  |.else
+  |  fldz
+  |  fstp qword [BASE+8]
+  |.endif
+  |  mov RD, 1+3
+  |  jmp ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc_1 pcall
+  |  lea RA, [BASE+8]
+  |  sub NARGS:RD, 1
+  |  mov PC, 8+FRAME_PCALL
+  |1:
+  |  movzx RB, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  shr RB, HOOK_ACTIVE_SHIFT
+  |  and RB, 1
+  |  add PC, RB				// Remember active hook before pcall.
+  |  jmp ->vm_call_dispatch
+  |
+  |.ffunc_2 xpcall
+  |  cmp dword [BASE+12], LJ_TFUNC;  jne ->fff_fallback
+  |  mov RB, [BASE+4]			// Swap function and traceback.
+  |  mov [BASE+12], RB
+  |  mov dword [BASE+4], LJ_TFUNC
+  |  mov LFUNC:RB, [BASE]
+  |  mov PC, [BASE+8]
+  |  mov [BASE+8], LFUNC:RB
+  |  mov [BASE], PC
+  |  lea RA, [BASE+16]
+  |  sub NARGS:RD, 2
+  |  mov PC, 16+FRAME_PCALL
+  |  jmp <1
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  mov L:RB, [BASE]
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov L:RB, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |  mov PC, [BASE-4]
+  |  mov SAVE_PC, PC
+  |.if X64
+  |  mov TMP1, L:RB
+  |.else
+  |  mov ARG1, L:RB
+  |.endif
+  |.if resume
+  |  cmp dword [BASE+4], LJ_TTHREAD;  jne ->fff_fallback
+  |.endif
+  |  cmp aword L:RB->cframe, 0; jne ->fff_fallback
+  |  cmp byte L:RB->status, LUA_YIELD;  ja ->fff_fallback
+  |  mov RA, L:RB->top
+  |  je >1				// Status != LUA_YIELD (i.e. 0)?
+  |  cmp RA, L:RB->base			// Check for presence of initial func.
+  |  je ->fff_fallback
+  |1:
+  |.if resume
+  |  lea PC, [RA+NARGS:RD*8-16]		// Check stack space (-1-thread).
+  |.else
+  |  lea PC, [RA+NARGS:RD*8-8]		// Check stack space (-1).
+  |.endif
+  |  cmp PC, L:RB->maxstack; ja ->fff_fallback
+  |  mov L:RB->top, PC
+  |
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |.if resume
+  |  add BASE, 8			// Keep resumed thread in stack for GC.
+  |.endif
+  |  mov L:RB->top, BASE
+  |.if resume
+  |  lea RB, [BASE+NARGS:RD*8-24]	// RB = end of source for stack move.
+  |.else
+  |  lea RB, [BASE+NARGS:RD*8-16]	// RB = end of source for stack move.
+  |.endif
+  |  sub RBa, PCa			// Relative to PC.
+  |
+  |  cmp PC, RA
+  |  je >3
+  |2:  // Move args to coroutine.
+  |.if X64
+  |  mov RCa, [PC+RB]
+  |  mov [PC-8], RCa
+  |.else
+  |  mov RC, [PC+RB+4]
+  |  mov [PC-4], RC
+  |  mov RC, [PC+RB]
+  |  mov [PC-8], RC
+  |.endif
+  |  sub PC, 8
+  |  cmp PC, RA
+  |  jne <2
+  |3:
+  |.if X64
+  |  mov CARG2d, RA
+  |  mov CARG1d, TMP1
+  |.else
+  |  mov ARG2, RA
+  |  xor RA, RA
+  |  mov ARG4, RA
+  |  mov ARG3, RA
+  |.endif
+  |  call ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  set_vmstate INTERP
+  |
+  |  mov L:RB, SAVE_L
+  |.if X64
+  |  mov L:PC, TMP1
+  |.else
+  |  mov L:PC, ARG1			// The callee doesn't modify SAVE_L.
+  |.endif
+  |  mov BASE, L:RB->base
+  |  cmp eax, LUA_YIELD
+  |  ja >8
+  |4:
+  |  mov RA, L:PC->base
+  |  mov KBASE, L:PC->top
+  |  mov L:PC->top, RA			// Clear coroutine stack.
+  |  mov PC, KBASE
+  |  sub PC, RA
+  |  je >6				// No results?
+  |  lea RD, [BASE+PC]
+  |  shr PC, 3
+  |  cmp RD, L:RB->maxstack
+  |  ja >9				// Need to grow stack?
+  |
+  |  mov RB, BASE
+  |  sub RBa, RAa
+  |5:  // Move results from coroutine.
+  |.if X64
+  |  mov RDa, [RA]
+  |  mov [RA+RB], RDa
+  |.else
+  |  mov RD, [RA]
+  |  mov [RA+RB], RD
+  |  mov RD, [RA+4]
+  |  mov [RA+RB+4], RD
+  |.endif
+  |  add RA, 8
+  |  cmp RA, KBASE
+  |  jne <5
+  |6:
+  |.if resume
+  |  lea RD, [PC+2]			// nresults+1 = 1 + true + results.
+  |  mov dword [BASE-4], LJ_TTRUE	// Prepend true to results.
+  |.else
+  |  lea RD, [PC+1]			// nresults+1 = 1 + results.
+  |.endif
+  |7:
+  |  mov PC, SAVE_PC
+  |  mov MULTRES, RD
+  |.if resume
+  |  mov RAa, -8
+  |.else
+  |  xor RA, RA
+  |.endif
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z
+  |  jmp ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  mov dword [BASE-4], LJ_TFALSE	// Prepend false to results.
+  |  mov RA, L:PC->top
+  |  sub RA, 8
+  |  mov L:PC->top, RA			// Clear error from coroutine stack.
+  |  // Copy error message.
+  |.if X64
+  |  mov RDa, [RA]
+  |  mov [BASE], RDa
+  |.else
+  |  mov RD, [RA]
+  |  mov [BASE], RD
+  |  mov RD, [RA+4]
+  |  mov [BASE+4], RD
+  |.endif
+  |  mov RD, 1+2			// nresults+1 = 1 + false + error.
+  |  jmp <7
+  |.else
+  |  mov FCARG2, L:PC
+  |  mov FCARG1, L:RB
+  |  call extern lj_ffh_coroutine_wrap_err@8  // (lua_State *L, lua_State *co)
+  |  // Error function does not return.
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |.if X64
+  |  mov L:RA, TMP1
+  |.else
+  |  mov L:RA, ARG1			// The callee doesn't modify SAVE_L.
+  |.endif
+  |  mov L:RA->top, KBASE		// Undo coroutine stack clearing.
+  |  mov FCARG2, PC
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |.if X64
+  |  mov L:PC, TMP1
+  |.else
+  |  mov L:PC, ARG1
+  |.endif
+  |  mov BASE, L:RB->base
+  |  jmp <4				// Retry the stack move.
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  mov L:RB, SAVE_L
+  |  test aword L:RB->cframe, CFRAME_RESUME
+  |  jz ->fff_fallback
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov L:RB->top, RD
+  |  xor RD, RD
+  |  mov aword L:RB->cframe, RDa
+  |  mov al, LUA_YIELD
+  |  mov byte L:RB->status, al
+  |  jmp ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.if not DUALNUM
+  |->fff_resi:  // Dummy.
+  |.endif
+  |
+  |.if SSE
+  |->fff_resn:
+  |  mov PC, [BASE-4]
+  |  fstp qword [BASE-8]
+  |  jmp ->fff_res1
+  |.endif
+  |
+  |  .ffunc_1 math_abs
+  |.if DUALNUM
+  |  cmp dword [BASE+4], LJ_TISNUM; jne >2
+  |  mov RB, dword [BASE]
+  |  cmp RB, 0; jns ->fff_resi
+  |  neg RB; js >1
+  |->fff_resbit:
+  |->fff_resi:
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TISNUM
+  |  mov dword [BASE-8], RB
+  |  jmp ->fff_res1
+  |1:
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], 0x41e00000  // 2^31.
+  |  mov dword [BASE-8], 0
+  |  jmp ->fff_res1
+  |2:
+  |  ja ->fff_fallback
+  |.else
+  |  cmp dword [BASE+4], LJ_TISNUM; jae ->fff_fallback
+  |.endif
+  |
+  |.if SSE
+  |  movsd xmm0, qword [BASE]
+  |  sseconst_abs xmm1, RDa
+  |  andps xmm0, xmm1
+  |->fff_resxmm0:
+  |  mov PC, [BASE-4]
+  |  movsd qword [BASE-8], xmm0
+  |  // fallthrough
+  |.else
+  |  fld qword [BASE]
+  |  fabs
+  |  // fallthrough
+  |->fff_resxmm0:  // Dummy.
+  |->fff_resn:
+  |  mov PC, [BASE-4]
+  |  fstp qword [BASE-8]
+  |.endif
+  |
+  |->fff_res1:
+  |  mov RD, 1+1
+  |->fff_res:
+  |  mov MULTRES, RD
+  |->fff_res_:
+  |  test PC, FRAME_TYPE
+  |  jnz >7
+  |5:
+  |  cmp PC_RB, RDL			// More results expected?
+  |  ja >6
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |  movzx RA, PC_RA
+  |  not RAa				// Note: ~RA = -(RA+1)
+  |  lea BASE, [BASE+RA*8]		// base = base - (RA+1)*8
+  |  ins_next
+  |
+  |6:  // Fill up results with nil.
+  |  mov dword [BASE+RD*8-12], LJ_TNIL
+  |  add RD, 1
+  |  jmp <5
+  |
+  |7:  // Non-standard return case.
+  |  mov RAa, -8			// Results start at BASE+RA = BASE-8.
+  |  jmp ->vm_return
+  |
+  |.macro math_round, func
+  |  .ffunc math_ .. func
+  |.if DUALNUM
+  |  cmp dword [BASE+4], LJ_TISNUM; jne >1
+  |  mov RB, dword [BASE]; jmp ->fff_resi
+  |1:
+  |  ja ->fff_fallback
+  |.else
+  |  cmp dword [BASE+4], LJ_TISNUM; jae ->fff_fallback
+  |.endif
+  |.if SSE
+  |  movsd xmm0, qword [BASE]
+  |  call ->vm_ .. func
+  |  .if DUALNUM
+  |    cvtsd2si RB, xmm0
+  |    cmp RB, 0x80000000
+  |    jne ->fff_resi
+  |    cvtsi2sd xmm1, RB
+  |    ucomisd xmm0, xmm1
+  |    jp ->fff_resxmm0
+  |    je ->fff_resi
+  |  .endif
+  |  jmp ->fff_resxmm0
+  |.else
+  |  fld qword [BASE]
+  |  call ->vm_ .. func
+  |  .if DUALNUM
+  |    fist ARG1
+  |    mov RB, ARG1
+  |    cmp RB, 0x80000000; jne >2
+  |    fdup
+  |    fild ARG1
+  |    fcomparepp
+  |    jp ->fff_resn
+  |    jne ->fff_resn
+  |2:
+  |    fpop
+  |    jmp ->fff_resi
+  | .else
+  |    jmp ->fff_resn
+  | .endif
+  |.endif
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.if SSE
+  |.ffunc_nsse math_sqrt, sqrtsd; jmp ->fff_resxmm0
+  |.else
+  |.ffunc_n math_sqrt; fsqrt; jmp ->fff_resn
+  |.endif
+  |
+  |.ffunc math_log
+  |  cmp NARGS:RD, 1+1; jne ->fff_fallback	// Exactly one argument.
+  |  cmp dword [BASE+4], LJ_TISNUM; jae ->fff_fallback
+  |  fldln2; fld qword [BASE]; fyl2x; jmp ->fff_resn
+  |
+  |.ffunc_n math_log10, fldlg2;	fyl2x;		jmp ->fff_resn
+  |.ffunc_n math_exp;	call ->vm_exp_x87;	jmp ->fff_resn
+  |
+  |.ffunc_n math_sin;	fsin;			jmp ->fff_resn
+  |.ffunc_n math_cos;	fcos;			jmp ->fff_resn
+  |.ffunc_n math_tan;	fptan; fpop;		jmp ->fff_resn
+  |
+  |.ffunc_n math_asin
+  |  fdup; fmul st0; fld1; fsubrp st1; fsqrt; fpatan
+  |  jmp ->fff_resn
+  |.ffunc_n math_acos
+  |  fdup; fmul st0; fld1; fsubrp st1; fsqrt; fxch; fpatan
+  |  jmp ->fff_resn
+  |.ffunc_n math_atan;	fld1; fpatan;		jmp ->fff_resn
+  |
+  |.macro math_extern, func
+  |.if SSE
+  |  .ffunc_nsse math_ .. func
+  |  .if not X64
+  |    movsd FPARG1, xmm0
+  |  .endif
+  |.else
+  |  .ffunc_n math_ .. func
+  |  fstp FPARG1
+  |.endif
+  |  mov RB, BASE
+  |  call extern lj_vm_ .. func
+  |  mov BASE, RB
+  |  .if X64
+  |    jmp ->fff_resxmm0
+  |  .else
+  |    jmp ->fff_resn
+  |  .endif
+  |.endmacro
+  |
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |
+  |->ff_math_deg:
+  |.if SSE
+  |.ffunc_nsse math_rad
+  |  mov CFUNC:RB, [BASE-8]
+  |  mulsd xmm0, qword CFUNC:RB->upvalue[0]
+  |  jmp ->fff_resxmm0
+  |.else
+  |.ffunc_n math_rad
+  |  mov CFUNC:RB, [BASE-8]
+  |  fmul qword CFUNC:RB->upvalue[0]
+  |  jmp ->fff_resn
+  |.endif
+  |
+  |.ffunc_nn math_atan2;	fpatan;		jmp ->fff_resn
+  |.ffunc_nnr math_ldexp;	fscale; fpop1;	jmp ->fff_resn
+  |
+  |.ffunc_1 math_frexp
+  |  mov RB, [BASE+4]
+  |  cmp RB, LJ_TISNUM;  jae ->fff_fallback
+  |  mov PC, [BASE-4]
+  |  mov RC, [BASE]
+  |  mov [BASE-4], RB; mov [BASE-8], RC
+  |  shl RB, 1; cmp RB, 0xffe00000; jae >3
+  |  or RC, RB; jz >3
+  |  mov RC, 1022
+  |  cmp RB, 0x00200000; jb >4
+  |1:
+  |  shr RB, 21; sub RB, RC		// Extract and unbias exponent.
+  |.if SSE
+  |  cvtsi2sd xmm0, RB
+  |.else
+  |  mov TMP1, RB; fild TMP1
+  |.endif
+  |  mov RB, [BASE-4]
+  |  and RB, 0x800fffff			// Mask off exponent.
+  |  or RB, 0x3fe00000			// Put mantissa in range [0.5,1) or 0.
+  |  mov [BASE-4], RB
+  |2:
+  |.if SSE
+  |  movsd qword [BASE], xmm0
+  |.else
+  |  fstp qword [BASE]
+  |.endif
+  |  mov RD, 1+2
+  |  jmp ->fff_res
+  |3:  // Return +-0, +-Inf, NaN unmodified and an exponent of 0.
+  |.if SSE
+  |  xorps xmm0, xmm0; jmp <2
+  |.else
+  |  fldz; jmp <2
+  |.endif
+  |4:  // Handle denormals by multiplying with 2^54 and adjusting the bias.
+  |.if SSE
+  |  movsd xmm0, qword [BASE]
+  |  sseconst_hi xmm1, RBa, 43500000  // 2^54.
+  |  mulsd xmm0, xmm1
+  |  movsd qword [BASE-8], xmm0
+  |.else
+  |  fld qword [BASE]
+  |  mov TMP1, 0x5a800000; fmul TMP1	// x = x*2^54
+  |  fstp qword [BASE-8]
+  |.endif
+  |  mov RB, [BASE-4]; mov RC, 1076; shl RB, 1; jmp <1
+  |
+  |.if SSE
+  |.ffunc_nsse math_modf
+  |.else
+  |.ffunc_n math_modf
+  |.endif
+  |  mov RB, [BASE+4]
+  |  mov PC, [BASE-4]
+  |  shl RB, 1; cmp RB, 0xffe00000; je >4	// +-Inf?
+  |.if SSE
+  |  movaps xmm4, xmm0
+  |  call ->vm_trunc
+  |  subsd xmm4, xmm0
+  |1:
+  |  movsd qword [BASE-8], xmm0
+  |  movsd qword [BASE], xmm4
+  |.else
+  |  fdup
+  |  call ->vm_trunc
+  |  fsub st1, st0
+  |1:
+  |  fstp qword [BASE-8]
+  |  fstp qword [BASE]
+  |.endif
+  |  mov RC, [BASE-4]; mov RB, [BASE+4]
+  |  xor RC, RB; js >3				// Need to adjust sign?
+  |2:
+  |  mov RD, 1+2
+  |  jmp ->fff_res
+  |3:
+  |  xor RB, 0x80000000; mov [BASE+4], RB	// Flip sign of fraction.
+  |  jmp <2
+  |4:
+  |.if SSE
+  |  xorps xmm4, xmm4; jmp <1			// Return +-Inf and +-0.
+  |.else
+  |  fldz; fxch; jmp <1				// Return +-Inf and +-0.
+  |.endif
+  |
+  |.ffunc_nnr math_fmod
+  |1: ; fprem; fnstsw ax; sahf; jp <1
+  |  fpop1
+  |  jmp ->fff_resn
+  |
+  |.if SSE
+  |.ffunc_nnsse math_pow;	call ->vm_pow;	jmp ->fff_resxmm0
+  |.else
+  |.ffunc_nn math_pow;		call ->vm_pow;	jmp ->fff_resn
+  |.endif
+  |
+  |.macro math_minmax, name, cmovop, fcmovop, sseop
+  |  .ffunc name
+  |  mov RA, 2
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >4
+  |  mov RB, dword [BASE]
+  |1:  // Handle integers.
+  |  cmp RA, RD; jae ->fff_resi
+  |  cmp dword [BASE+RA*8-4], LJ_TISNUM; jne >3
+  |  cmp RB, dword [BASE+RA*8-8]
+  |  cmovop RB, dword [BASE+RA*8-8]
+  |  add RA, 1
+  |  jmp <1
+  |3:
+  |  ja ->fff_fallback
+  |  // Convert intermediate result to number and continue below.
+  |.if SSE
+  |  cvtsi2sd xmm0, RB
+  |.else
+  |  mov TMP1, RB
+  |  fild TMP1
+  |.endif
+  |  jmp >6
+  |4:
+  |  ja ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |
+  |.if SSE
+  |  movsd xmm0, qword [BASE]
+  |5:  // Handle numbers or integers.
+  |  cmp RA, RD; jae ->fff_resxmm0
+  |  cmp dword [BASE+RA*8-4], LJ_TISNUM
+  |.if DUALNUM
+  |  jb >6
+  |  ja ->fff_fallback
+  |  cvtsi2sd xmm1, dword [BASE+RA*8-8]
+  |  jmp >7
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |6:
+  |  movsd xmm1, qword [BASE+RA*8-8]
+  |7:
+  |  sseop xmm0, xmm1
+  |  add RA, 1
+  |  jmp <5
+  |.else
+  |  fld qword [BASE]
+  |5:  // Handle numbers or integers.
+  |  cmp RA, RD; jae ->fff_resn
+  |  cmp dword [BASE+RA*8-4], LJ_TISNUM
+  |.if DUALNUM
+  |  jb >6
+  |  ja >9
+  |  fild dword [BASE+RA*8-8]
+  |  jmp >7
+  |.else
+  |  jae >9
+  |.endif
+  |6:
+  |  fld qword [BASE+RA*8-8]
+  |7:
+  |  fucomi st1; fcmovop st1; fpop1
+  |  add RA, 1
+  |  jmp <5
+  |.endif
+  |.endmacro
+  |
+  |  math_minmax math_min, cmovg, fcmovnbe, minsd
+  |  math_minmax math_max, cmovl, fcmovbe, maxsd
+  |.if not SSE
+  |9:
+  |  fpop; jmp ->fff_fallback
+  |.endif
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc_1 string_len
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  mov STR:RB, [BASE]
+  |.if DUALNUM
+  |  mov RB, dword STR:RB->len; jmp ->fff_resi
+  |.elif SSE
+  |  cvtsi2sd xmm0, dword STR:RB->len; jmp ->fff_resxmm0
+  |.else
+  |  fild dword STR:RB->len; jmp ->fff_resn
+  |.endif
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  cmp NARGS:RD, 1+1;  jne ->fff_fallback
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  mov STR:RB, [BASE]
+  |  mov PC, [BASE-4]
+  |  cmp dword STR:RB->len, 1
+  |  jb ->fff_res0			// Return no results for empty string.
+  |  movzx RB, byte STR:RB[1]
+  |.if DUALNUM
+  |  jmp ->fff_resi
+  |.elif SSE
+  |  cvtsi2sd xmm0, RB; jmp ->fff_resxmm0
+  |.else
+  |  mov TMP1, RB; fild TMP1; jmp ->fff_resn
+  |.endif
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  cmp NARGS:RD, 1+1;  jne ->fff_fallback	// *Exactly* 1 arg.
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |  mov RB, dword [BASE]
+  |  cmp RB, 255;  ja ->fff_fallback
+  |  mov TMP2, RB
+  |.elif SSE
+  |  jae ->fff_fallback
+  |  cvttsd2si RB, qword [BASE]
+  |  cmp RB, 255;  ja ->fff_fallback
+  |  mov TMP2, RB
+  |.else
+  |  jae ->fff_fallback
+  |  fld qword [BASE]
+  |  fistp TMP2
+  |  cmp TMP2, 255;  ja ->fff_fallback
+  |.endif
+  |.if X64
+  |  mov TMP3, 1
+  |.else
+  |  mov ARG3, 1
+  |.endif
+  |  lea RDa, TMP2			// Points to stack. Little-endian.
+  |->fff_newstr:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |.if X64
+  |  mov CARG3d, TMP3			// Zero-extended to size_t.
+  |  mov CARG2, RDa			// May be 64 bit ptr to stack.
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov ARG2, RD
+  |  mov ARG1, L:RB
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |  // GCstr * returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TSTR
+  |  mov [BASE-8], STR:RD
+  |  jmp ->fff_res1
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  mov TMP2, -1
+  |  cmp NARGS:RD, 1+2;  jb ->fff_fallback
+  |  jna >1
+  |  cmp dword [BASE+20], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |  mov RB, dword [BASE+16]
+  |  mov TMP2, RB
+  |.elif SSE
+  |  jae ->fff_fallback
+  |  cvttsd2si RB, qword [BASE+16]
+  |  mov TMP2, RB
+  |.else
+  |  jae ->fff_fallback
+  |  fld qword [BASE+16]
+  |  fistp TMP2
+  |.endif
+  |1:
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |  mov STR:RB, [BASE]
+  |  mov TMP3, STR:RB
+  |  mov RB, STR:RB->len
+  |.if DUALNUM
+  |  mov RA, dword [BASE+8]
+  |.elif SSE
+  |  cvttsd2si RA, qword [BASE+8]
+  |.else
+  |  fld qword [BASE+8]
+  |  fistp ARG3
+  |  mov RA, ARG3
+  |.endif
+  |  mov RC, TMP2
+  |  cmp RB, RC				// len < end? (unsigned compare)
+  |  jb >5
+  |2:
+  |  test RA, RA			// start <= 0?
+  |  jle >7
+  |3:
+  |  mov STR:RB, TMP3
+  |  sub RC, RA				// start > end?
+  |  jl ->fff_emptystr
+  |  lea RB, [STR:RB+RA+#STR-1]
+  |  add RC, 1
+  |4:
+  |.if X64
+  |  mov TMP3, RC
+  |.else
+  |  mov ARG3, RC
+  |.endif
+  |  mov RD, RB
+  |  jmp ->fff_newstr
+  |
+  |5:  // Negative end or overflow.
+  |  jl >6
+  |  lea RC, [RC+RB+1]			// end = end+(len+1)
+  |  jmp <2
+  |6:  // Overflow.
+  |  mov RC, RB				// end = len
+  |  jmp <2
+  |
+  |7:  // Negative start or underflow.
+  |  je >8
+  |  add RA, RB				// start = start+(len+1)
+  |  add RA, 1
+  |  jg <3				// start > 0?
+  |8:  // Underflow.
+  |  mov RA, 1				// start = 1
+  |  jmp <3
+  |
+  |->fff_emptystr:  // Range underflow.
+  |  xor RC, RC				// Zero length. Any ptr in RB is ok.
+  |  jmp <4
+  |
+  |.ffunc string_rep			// Only handle the 1-char case inline.
+  |  ffgccheck
+  |  cmp NARGS:RD, 2+1; jne ->fff_fallback	// Exactly 2 arguments.
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM
+  |  mov STR:RB, [BASE]
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |  mov RC, dword [BASE+8]
+  |.elif SSE
+  |  jae ->fff_fallback
+  |  cvttsd2si RC, qword [BASE+8]
+  |.else
+  |  jae ->fff_fallback
+  |  fld qword [BASE+8]
+  |  fistp TMP2
+  |  mov RC, TMP2
+  |.endif
+  |  test RC, RC
+  |  jle ->fff_emptystr			// Count <= 0? (or non-int)
+  |  cmp dword STR:RB->len, 1
+  |  jb ->fff_emptystr			// Zero length string?
+  |  jne ->fff_fallback_2		// Fallback for > 1-char strings.
+  |  cmp [DISPATCH+DISPATCH_GL(tmpbuf.sz)], RC;  jb ->fff_fallback_2
+  |  movzx RA, byte STR:RB[1]
+  |  mov RB, [DISPATCH+DISPATCH_GL(tmpbuf.buf)]
+  |.if X64
+  |  mov TMP3, RC
+  |.else
+  |  mov ARG3, RC
+  |.endif
+  |1:  // Fill buffer with char. Yes, this is suboptimal code (do you care?).
+  |  mov [RB], RAL
+  |  add RB, 1
+  |  sub RC, 1
+  |  jnz <1
+  |  mov RD, [DISPATCH+DISPATCH_GL(tmpbuf.buf)]
+  |  jmp ->fff_newstr
+  |
+  |.ffunc_1 string_reverse
+  |  ffgccheck
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  mov STR:RB, [BASE]
+  |  mov RC, STR:RB->len
+  |  test RC, RC
+  |  jz ->fff_emptystr			// Zero length string?
+  |  cmp [DISPATCH+DISPATCH_GL(tmpbuf.sz)], RC;  jb ->fff_fallback_1
+  |  add RB, #STR
+  |  mov TMP2, PC			// Need another temp register.
+  |.if X64
+  |  mov TMP3, RC
+  |.else
+  |  mov ARG3, RC
+  |.endif
+  |  mov PC, [DISPATCH+DISPATCH_GL(tmpbuf.buf)]
+  |1:
+  |  movzx RA, byte [RB]
+  |  add RB, 1
+  |  sub RC, 1
+  |  mov [PC+RC], RAL
+  |  jnz <1
+  |  mov RD, PC
+  |  mov PC, TMP2
+  |  jmp ->fff_newstr
+  |
+  |.macro ffstring_case, name, lo, hi
+  |  .ffunc_1 name
+  |  ffgccheck
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  mov STR:RB, [BASE]
+  |  mov RC, STR:RB->len
+  |  cmp [DISPATCH+DISPATCH_GL(tmpbuf.sz)], RC;  jb ->fff_fallback_1
+  |  add RB, #STR
+  |  mov TMP2, PC			// Need another temp register.
+  |.if X64
+  |  mov TMP3, RC
+  |.else
+  |  mov ARG3, RC
+  |.endif
+  |  mov PC, [DISPATCH+DISPATCH_GL(tmpbuf.buf)]
+  |  jmp >3
+  |1:  // ASCII case conversion. Yes, this is suboptimal code (do you care?).
+  |  movzx RA, byte [RB+RC]
+  |  cmp RA, lo
+  |  jb >2
+  |  cmp RA, hi
+  |  ja >2
+  |  xor RA, 0x20
+  |2:
+  |  mov [PC+RC], RAL
+  |3:
+  |  sub RC, 1
+  |  jns <1
+  |  mov RD, PC
+  |  mov PC, TMP2
+  |  jmp ->fff_newstr
+  |.endmacro
+  |
+  |ffstring_case string_lower, 0x41, 0x5a
+  |ffstring_case string_upper, 0x61, 0x7a
+  |
+  |//-- Table library ------------------------------------------------------
+  |
+  |.ffunc_1 table_getn
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  mov RB, BASE			// Save BASE.
+  |  mov TAB:FCARG1, [BASE]
+  |  call extern lj_tab_len@4		// LJ_FASTCALL (GCtab *t)
+  |  // Length of table returned in eax (RD).
+  |  mov BASE, RB			// Restore BASE.
+  |.if DUALNUM
+  |  mov RB, RD; jmp ->fff_resi
+  |.elif SSE
+  |  cvtsi2sd xmm0, RD; jmp ->fff_resxmm0
+  |.else
+  |  mov ARG1, RD; fild ARG1; jmp ->fff_resn
+  |.endif
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.define TOBIT_BIAS, 0x59c00000	// 2^52 + 2^51 (float, not double!).
+  |
+  |.macro .ffunc_bit, name, kind
+  |  .ffunc_1 name
+  |.if kind == 2
+  |.if SSE
+  |  sseconst_tobit xmm1, RBa
+  |.else
+  |  mov TMP1, TOBIT_BIAS
+  |.endif
+  |.endif
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >1
+  |  mov RB, dword [BASE]
+  |.if kind > 0
+  |  jmp >2
+  |.else
+  |  jmp ->fff_resbit
+  |.endif
+  |1:
+  |  ja ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |.if SSE
+  |  movsd xmm0, qword [BASE]
+  |.if kind < 2
+  |  sseconst_tobit xmm1, RBa
+  |.endif
+  |  addsd xmm0, xmm1
+  |  movd RB, xmm0
+  |.else
+  |  fld qword [BASE]
+  |.if kind < 2
+  |  mov TMP1, TOBIT_BIAS
+  |.endif
+  |  fadd TMP1
+  |  fstp FPARG1
+  |.if kind > 0
+  |  mov RB, ARG1
+  |.endif
+  |.endif
+  |2:
+  |.endmacro
+  |
+  |.ffunc_bit bit_tobit, 0
+  |.if DUALNUM or SSE
+  |.if not SSE
+  |  mov RB, ARG1
+  |.endif
+  |  jmp ->fff_resbit
+  |.else
+  |  fild ARG1
+  |  jmp ->fff_resn
+  |.endif
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name, 2
+  |  mov TMP2, NARGS:RD			// Save for fallback.
+  |  lea RD, [BASE+NARGS:RD*8-16]
+  |1:
+  |  cmp RD, BASE
+  |  jbe ->fff_resbit
+  |  cmp dword [RD+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >2
+  |  ins RB, dword [RD]
+  |  sub RD, 8
+  |  jmp <1
+  |2:
+  |  ja ->fff_fallback_bit_op
+  |.else
+  |  jae ->fff_fallback_bit_op
+  |.endif
+  |.if SSE
+  |  movsd xmm0, qword [RD]
+  |  addsd xmm0, xmm1
+  |  movd RA, xmm0
+  |  ins RB, RA
+  |.else
+  |  fld qword [RD]
+  |  fadd TMP1
+  |  fstp FPARG1
+  |  ins RB, ARG1
+  |.endif
+  |  sub RD, 8
+  |  jmp <1
+  |.endmacro
+  |
+  |.ffunc_bit_op bit_band, and
+  |.ffunc_bit_op bit_bor, or
+  |.ffunc_bit_op bit_bxor, xor
+  |
+  |.ffunc_bit bit_bswap, 1
+  |  bswap RB
+  |  jmp ->fff_resbit
+  |
+  |.ffunc_bit bit_bnot, 1
+  |  not RB
+  |.if DUALNUM
+  |  jmp ->fff_resbit
+  |.elif SSE
+  |->fff_resbit:
+  |  cvtsi2sd xmm0, RB
+  |  jmp ->fff_resxmm0
+  |.else
+  |->fff_resbit:
+  |  mov ARG1, RB
+  |  fild ARG1
+  |  jmp ->fff_resn
+  |.endif
+  |
+  |->fff_fallback_bit_op:
+  |  mov NARGS:RD, TMP2			// Restore for fallback
+  |  jmp ->fff_fallback
+  |
+  |.macro .ffunc_bit_sh, name, ins
+  |.if DUALNUM
+  |  .ffunc_bit name, 1
+  |  // Note: no inline conversion from number for 2nd argument!
+  |  cmp dword [BASE+12], LJ_TISNUM; jne ->fff_fallback
+  |  mov RA, dword [BASE+8]
+  |.elif SSE
+  |  .ffunc_nnsse name
+  |  sseconst_tobit xmm2, RBa
+  |  addsd xmm0, xmm2
+  |  addsd xmm1, xmm2
+  |  movd RB, xmm0
+  |  movd RA, xmm1
+  |.else
+  |  .ffunc_nn name
+  |  mov TMP1, TOBIT_BIAS
+  |  fadd TMP1
+  |  fstp FPARG3
+  |  fadd TMP1
+  |  fstp FPARG1
+  |  mov RA, ARG3
+  |  mov RB, ARG1
+  |.endif
+  |  ins RB, cl				// Assumes RA is ecx.
+  |  jmp ->fff_resbit
+  |.endmacro
+  |
+  |.ffunc_bit_sh bit_lshift, shl
+  |.ffunc_bit_sh bit_rshift, shr
+  |.ffunc_bit_sh bit_arshift, sar
+  |.ffunc_bit_sh bit_rol, rol
+  |.ffunc_bit_sh bit_ror, ror
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback_2:
+  |  mov NARGS:RD, 1+2			// Other args are ignored, anyway.
+  |  jmp ->fff_fallback
+  |->fff_fallback_1:
+  |  mov NARGS:RD, 1+1			// Other args are ignored, anyway.
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RD = nargs+1
+  |  mov L:RB, SAVE_L
+  |  mov PC, [BASE-4]			// Fallback may overwrite PC.
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  lea RA, [RD+8*LUA_MINSTACK]	// Ensure enough space for handler.
+  |  mov L:RB->top, RD
+  |  mov CFUNC:RD, [BASE-8]
+  |  cmp RA, L:RB->maxstack
+  |  ja >5				// Need to grow stack.
+  |.if X64
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov ARG1, L:RB
+  |.endif
+  |  call aword CFUNC:RD->f		// (lua_State *L)
+  |  mov BASE, L:RB->base
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  test RD, RD;  jg ->fff_res		// Returned nresults+1?
+  |1:
+  |  mov RA, L:RB->top
+  |  sub RA, BASE
+  |  shr RA, 3
+  |  test RD, RD
+  |  lea NARGS:RD, [RA+1]
+  |  mov LFUNC:RB, [BASE-8]
+  |  jne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  mov RA, BASE
+  |  test PC, FRAME_TYPE
+  |  jnz >3
+  |  movzx RB, PC_RA
+  |  not RBa				// Note: ~RB = -(RB+1)
+  |  lea BASE, [BASE+RB*8]		// base = base - (RB+1)*8
+  |  jmp ->vm_call_dispatch		// Resolve again for tailcall.
+  |3:
+  |  mov RB, PC
+  |  and RB, -8
+  |  sub BASE, RB
+  |  jmp ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  mov FCARG2, LUA_MINSTACK
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |  mov BASE, L:RB->base
+  |  xor RD, RD				// Simulate a return 0.
+  |  jmp <1				// Dumb retry (goes through ff first).
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RD = nargs+1
+  |  pop RBa				// Must keep stack at same level.
+  |  mov TMPa, RBa			// Save return address
+  |  mov L:RB, SAVE_L
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov FCARG1, L:RB
+  |  mov L:RB->top, RD
+  |  call extern lj_gc_step@4		// (lua_State *L)
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  sub RD, BASE
+  |  shr RD, 3
+  |  add NARGS:RD, 1
+  |  mov RBa, TMPa
+  |  push RBa				// Restore return address.
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  movzx RD, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_VMEVENT		// No recording while in vmevent.
+  |  jnz >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |  test RDL, HOOK_ACTIVE
+  |  jnz >1
+  |  test RDL, LUA_MASKLINE|LUA_MASKCOUNT
+  |  jz >1
+  |  dec dword [DISPATCH+DISPATCH_GL(hookcount)]
+  |  jmp >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  movzx RD, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_ACTIVE		// Hook already active?
+  |  jnz >5
+  |  jmp >1
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  movzx RD, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_ACTIVE		// Hook already active?
+  |  jnz >5
+  |
+  |  test RDL, LUA_MASKLINE|LUA_MASKCOUNT
+  |  jz >5
+  |  dec dword [DISPATCH+DISPATCH_GL(hookcount)]
+  |  jz >1
+  |  test RDL, LUA_MASKLINE
+  |  jz >5
+  |1:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG2, PC			// Caveat: FCARG2 == BASE
+  |  mov FCARG1, L:RB
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  call extern lj_dispatch_ins@8	// (lua_State *L, BCIns *pc)
+  |3:
+  |  mov BASE, L:RB->base
+  |4:
+  |  movzx RA, PC_RA
+  |5:
+  |  movzx OP, PC_OP
+  |  movzx RD, PC_RD
+  |.if X64
+  |  jmp aword [DISPATCH+OP*8+GG_DISP2STATIC]	// Re-dispatch to static ins.
+  |.else
+  |  jmp aword [DISPATCH+OP*4+GG_DISP2STATIC]	// Re-dispatch to static ins.
+  |.endif
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  add PC, 4
+  |  mov RA, [RB-24]
+  |  mov MULTRES, RA			// Restore MULTRES for *M ins.
+  |  jmp <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  mov LFUNC:RB, [BASE-8]		// Same as curr_topL(L).
+  |  mov RB, LFUNC:RB->pc
+  |  movzx RD, byte [RB+PC2PROTO(framesize)]
+  |  lea RD, [BASE+RD*8]
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov FCARG2, PC
+  |  lea FCARG1, [DISPATCH+GG_DISP2J]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RBa
+  |  mov SAVE_PC, PC
+  |  call extern lj_trace_hot@8		// (jit_State *J, const BCIns *pc)
+  |  jmp <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mov SAVE_PC, PC
+  |.if JIT
+  |  jmp >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  mov SAVE_PC, PC
+  |  or PC, 1				// Marker for hot call.
+  |1:
+  |.endif
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov FCARG2, PC
+  |  mov FCARG1, L:RB
+  |  call extern lj_dispatch_call@8	// (lua_State *L, const BCIns *pc)
+  |  // ASMFunction returned in eax/rax (RDa).
+  |  mov SAVE_PC, 0			// Invalidate for subsequent line hook.
+  |.if JIT
+  |  and PC, -2
+  |.endif
+  |  mov BASE, L:RB->base
+  |  mov RAa, RDa
+  |  mov RD, L:RB->top
+  |  sub RD, BASE
+  |  mov RBa, RAa
+  |  movzx RA, PC_RA
+  |  shr RD, 3
+  |  add NARGS:RD, 1
+  |  jmp RBa
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Called from an exit stub with the exit number on the stack.
+  |// The 16 bit exit number is stored with two (sign-extended) push imm8.
+  |->vm_exit_handler:
+  |.if JIT
+  |.if X64
+  |  push r13; push r12
+  |  push r11; push r10; push r9; push r8
+  |  push rdi; push rsi; push rbp; lea rbp, [rsp+88]; push rbp
+  |  push rbx; push rdx; push rcx; push rax
+  |  movzx RC, byte [rbp-8]		// Reconstruct exit number.
+  |  mov RCH, byte [rbp-16]
+  |  mov [rbp-8], r15; mov [rbp-16], r14
+  |.else
+  |  push ebp; lea ebp, [esp+12]; push ebp
+  |  push ebx; push edx; push ecx; push eax
+  |  movzx RC, byte [ebp-4]		// Reconstruct exit number.
+  |  mov RCH, byte [ebp-8]
+  |  mov [ebp-4], edi; mov [ebp-8], esi
+  |.endif
+  |  // Caveat: DISPATCH is ebx.
+  |  mov DISPATCH, [ebp]
+  |  mov RA, [DISPATCH+DISPATCH_GL(vmstate)]	// Get trace number.
+  |  set_vmstate EXIT
+  |  mov [DISPATCH+DISPATCH_J(exitno)], RC
+  |  mov [DISPATCH+DISPATCH_J(parent)], RA
+  |.if X64
+  |.if X64WIN
+  |  sub rsp, 16*8+4*8			// Room for SSE regs + save area.
+  |.else
+  |  sub rsp, 16*8			// Room for SSE regs.
+  |.endif
+  |  add rbp, -128
+  |  movsd qword [rbp-8],   xmm15; movsd qword [rbp-16],  xmm14
+  |  movsd qword [rbp-24],  xmm13; movsd qword [rbp-32],  xmm12
+  |  movsd qword [rbp-40],  xmm11; movsd qword [rbp-48],  xmm10
+  |  movsd qword [rbp-56],  xmm9;  movsd qword [rbp-64],  xmm8
+  |  movsd qword [rbp-72],  xmm7;  movsd qword [rbp-80],  xmm6
+  |  movsd qword [rbp-88],  xmm5;  movsd qword [rbp-96],  xmm4
+  |  movsd qword [rbp-104], xmm3;  movsd qword [rbp-112], xmm2
+  |  movsd qword [rbp-120], xmm1;  movsd qword [rbp-128], xmm0
+  |.else
+  |  sub esp, 8*8+16			// Room for SSE regs + args.
+  |  movsd qword [ebp-40], xmm7; movsd qword [ebp-48], xmm6
+  |  movsd qword [ebp-56], xmm5; movsd qword [ebp-64], xmm4
+  |  movsd qword [ebp-72], xmm3; movsd qword [ebp-80], xmm2
+  |  movsd qword [ebp-88], xmm1; movsd qword [ebp-96], xmm0
+  |.endif
+  |  // Caveat: RB is ebp.
+  |  mov L:RB, [DISPATCH+DISPATCH_GL(jit_L)]
+  |  mov BASE, [DISPATCH+DISPATCH_GL(jit_base)]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RBa
+  |  mov dword [DISPATCH+DISPATCH_GL(jit_L)], 0
+  |  mov L:RB->base, BASE
+  |.if X64WIN
+  |  lea CARG2, [rsp+4*8]
+  |.elif X64
+  |  mov CARG2, rsp
+  |.else
+  |  lea FCARG2, [esp+16]
+  |.endif
+  |  lea FCARG1, [DISPATCH+GG_DISP2J]
+  |  call extern lj_trace_exit@8	// (jit_State *J, ExitState *ex)
+  |  // MULTRES or negated error code returned in eax (RD).
+  |  mov RAa, L:RB->cframe
+  |  and RAa, CFRAME_RAWMASK
+  |.if X64WIN
+  |  // Reposition stack later.
+  |.elif X64
+  |  mov rsp, RAa			// Reposition stack to C frame.
+  |.else
+  |  mov esp, RAa			// Reposition stack to C frame.
+  |.endif
+  |  mov [RAa+CFRAME_OFS_L], L:RB	// Set SAVE_L (on-trace resume/yield).
+  |  mov BASE, L:RB->base
+  |  mov PC, [RAa+CFRAME_OFS_PC]	// Get SAVE_PC.
+  |.if X64
+  |  jmp >1
+  |.endif
+  |.endif
+  |->vm_exit_interp:
+  |  // RD = MULTRES or negated error code, BASE, PC and DISPATCH set.
+  |.if JIT
+  |.if X64
+  |  // Restore additional callee-save registers only used in compiled code.
+  |.if X64WIN
+  |  lea RAa, [rsp+9*16+4*8]
+  |1:
+  |  movdqa xmm15, [RAa-9*16]
+  |  movdqa xmm14, [RAa-8*16]
+  |  movdqa xmm13, [RAa-7*16]
+  |  movdqa xmm12, [RAa-6*16]
+  |  movdqa xmm11, [RAa-5*16]
+  |  movdqa xmm10, [RAa-4*16]
+  |  movdqa xmm9, [RAa-3*16]
+  |  movdqa xmm8, [RAa-2*16]
+  |  movdqa xmm7, [RAa-1*16]
+  |  mov rsp, RAa			// Reposition stack to C frame.
+  |  movdqa xmm6, [RAa]
+  |  mov r15, CSAVE_3
+  |  mov r14, CSAVE_4
+  |.else
+  |  add rsp, 16			// Reposition stack to C frame.
+  |1:
+  |.endif
+  |  mov r13, TMPa
+  |  mov r12, TMPQ
+  |.endif
+  |  test RD, RD; js >3			// Check for error from exit.
+  |  mov MULTRES, RD
+  |  mov LFUNC:KBASE, [BASE-8]
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  mov dword [DISPATCH+DISPATCH_GL(jit_L)], 0
+  |  set_vmstate INTERP
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  mov RC, [PC]
+  |  movzx RA, RCH
+  |  movzx OP, RCL
+  |  add PC, 4
+  |  shr RC, 16
+  |  cmp OP, BC_FUNCF			// Function header?
+  |  jb >2
+  |  mov RC, MULTRES			// RC/RD holds nres+1.
+  |2:
+  |.if X64
+  |  jmp aword [DISPATCH+OP*8]
+  |.else
+  |  jmp aword [DISPATCH+OP*4]
+  |.endif
+  |
+  |3:  // Rethrow error from the right C frame.
+  |  neg RD
+  |  mov FCARG1, L:RB
+  |  mov FCARG2, RD
+  |  call extern lj_err_throw@8		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// FP value rounding. Called by math.floor/math.ceil fast functions
+  |// and from JIT code.
+  |
+  |// x87 variant: Arg/ret on x87 stack. No int/xmm registers modified.
+  |.macro vm_round_x87, mode1, mode2
+  |  fnstcw word [esp+4]		// Caveat: overwrites ARG1 and ARG2.
+  |  mov [esp+8], eax
+  |  mov ax, mode1
+  |  or ax, [esp+4]
+  |.if mode2 ~= 0xffff
+  |  and ax, mode2
+  |.endif
+  |  mov [esp+6], ax
+  |  fldcw word [esp+6]
+  |  frndint
+  |  fldcw word [esp+4]
+  |  mov eax, [esp+8]
+  |  ret
+  |.endmacro
+  |
+  |// SSE variant: arg/ret is xmm0. xmm0-xmm3 and RD (eax) modified.
+  |.macro vm_round_sse, mode
+  |  sseconst_abs xmm2, RDa
+  |  sseconst_2p52 xmm3, RDa
+  |  movaps xmm1, xmm0
+  |  andpd xmm1, xmm2			// |x|
+  |  ucomisd xmm3, xmm1			// No truncation if 2^52 <= |x|.
+  |  jbe >1
+  |  andnpd xmm2, xmm0			// Isolate sign bit.
+  |.if mode == 2		// trunc(x)?
+  |  movaps xmm0, xmm1
+  |  addsd xmm1, xmm3			// (|x| + 2^52) - 2^52
+  |  subsd xmm1, xmm3
+  |  sseconst_1 xmm3, RDa
+  |  cmpsd xmm0, xmm1, 1		// |x| < result?
+  |  andpd xmm0, xmm3
+  |  subsd xmm1, xmm0			// If yes, subtract -1.
+  |  orpd xmm1, xmm2			// Merge sign bit back in.
+  |.else
+  |  addsd xmm1, xmm3			// (|x| + 2^52) - 2^52
+  |  subsd xmm1, xmm3
+  |  orpd xmm1, xmm2			// Merge sign bit back in.
+  |  .if mode == 1		// ceil(x)?
+  |    sseconst_m1 xmm2, RDa		// Must subtract -1 to preserve -0.
+  |    cmpsd xmm0, xmm1, 6		// x > result?
+  |  .else			// floor(x)?
+  |    sseconst_1 xmm2, RDa
+  |    cmpsd xmm0, xmm1, 1		// x < result?
+  |  .endif
+  |  andpd xmm0, xmm2
+  |  subsd xmm1, xmm0			// If yes, subtract +-1.
+  |.endif
+  |  movaps xmm0, xmm1
+  |1:
+  |  ret
+  |.endmacro
+  |
+  |.macro vm_round, name, ssemode, mode1, mode2
+  |->name:
+  |.if not SSE
+  |  vm_round_x87 mode1, mode2
+  |.endif
+  |->name .. _sse:
+  |  vm_round_sse ssemode
+  |.endmacro
+  |
+  |  vm_round vm_floor, 0, 0x0400, 0xf7ff
+  |  vm_round vm_ceil,  1, 0x0800, 0xfbff
+  |  vm_round vm_trunc, 2, 0x0c00, 0xffff
+  |
+  |// FP modulo x%y. Called by BC_MOD* and vm_arith.
+  |->vm_mod:
+  |.if SSE
+  |// Args in xmm0/xmm1, return value in xmm0.
+  |// Caveat: xmm0-xmm5 and RC (eax) modified!
+  |  movaps xmm5, xmm0
+  |  divsd xmm0, xmm1
+  |  sseconst_abs xmm2, RDa
+  |  sseconst_2p52 xmm3, RDa
+  |  movaps xmm4, xmm0
+  |  andpd xmm4, xmm2			// |x/y|
+  |  ucomisd xmm3, xmm4			// No truncation if 2^52 <= |x/y|.
+  |  jbe >1
+  |  andnpd xmm2, xmm0			// Isolate sign bit.
+  |  addsd xmm4, xmm3			// (|x/y| + 2^52) - 2^52
+  |  subsd xmm4, xmm3
+  |  orpd xmm4, xmm2			// Merge sign bit back in.
+  |  sseconst_1 xmm2, RDa
+  |  cmpsd xmm0, xmm4, 1		// x/y < result?
+  |  andpd xmm0, xmm2
+  |  subsd xmm4, xmm0			// If yes, subtract 1.0.
+  |  movaps xmm0, xmm5
+  |  mulsd xmm1, xmm4
+  |  subsd xmm0, xmm1
+  |  ret
+  |1:
+  |  mulsd xmm1, xmm0
+  |  movaps xmm0, xmm5
+  |  subsd xmm0, xmm1
+  |  ret
+  |.else
+  |// Args/ret on x87 stack (y on top). No xmm registers modified.
+  |// Caveat: needs 3 slots on x87 stack! RC (eax) modified!
+  |  fld st1
+  |  fdiv st1
+  |  fnstcw word [esp+4]
+  |  mov ax, 0x0400
+  |  or ax, [esp+4]
+  |  and ax, 0xf7ff
+  |  mov [esp+6], ax
+  |  fldcw word [esp+6]
+  |  frndint
+  |  fldcw word [esp+4]
+  |  fmulp st1
+  |  fsubp st1
+  |  ret
+  |.endif
+  |
+  |// FP log2(x). Called by math.log(x, base).
+  |->vm_log2:
+  |.if X64WIN
+  |  movsd qword [rsp+8], xmm0		// Use scratch area.
+  |  fld1
+  |  fld qword [rsp+8]
+  |  fyl2x
+  |  fstp qword [rsp+8]
+  |  movsd xmm0, qword [rsp+8]
+  |.elif X64
+  |  movsd qword [rsp-8], xmm0		// Use red zone.
+  |  fld1
+  |  fld qword [rsp-8]
+  |  fyl2x
+  |  fstp qword [rsp-8]
+  |  movsd xmm0, qword [rsp-8]
+  |.else
+  |  fld1
+  |  fld qword [esp+4]
+  |  fyl2x
+  |.endif
+  |  ret
+  |
+  |// FP exponentiation e^x and 2^x. Called by math.exp fast function and
+  |// from JIT code. Arg/ret on x87 stack. No int/xmm regs modified.
+  |// Caveat: needs 3 slots on x87 stack!
+  |->vm_exp_x87:
+  |  fldl2e; fmulp st1				// e^x ==> 2^(x*log2(e))
+  |->vm_exp2_x87:
+  |  .if X64WIN
+  |    .define expscratch, dword [rsp+8]	// Use scratch area.
+  |  .elif X64
+  |    .define expscratch, dword [rsp-8]	// Use red zone.
+  |  .else
+  |    .define expscratch, dword [esp+4]	// Needs 4 byte scratch area.
+  |  .endif
+  |  fst expscratch				// Caveat: overwrites ARG1.
+  |  cmp expscratch, 0x7f800000; je >1		// Special case: e^+Inf = +Inf
+  |  cmp expscratch, 0xff800000; je >2		// Special case: e^-Inf = 0
+  |->vm_exp2raw:  // Entry point for vm_pow. Without +-Inf check.
+  |  fdup; frndint; fsub st1, st0; fxch		// Split into frac/int part.
+  |  f2xm1; fld1; faddp st1; fscale; fpop1	// ==> (2^frac-1 +1) << int
+  |1:
+  |  ret
+  |2:
+  |  fpop; fldz; ret
+  |
+  |// Generic power function x^y. Called by BC_POW, math.pow fast function,
+  |// and vm_arith.
+  |// Args/ret on x87 stack (y on top). RC (eax) modified.
+  |// Caveat: needs 3 slots on x87 stack!
+  |->vm_pow:
+  |.if not SSE
+  |  fist dword [esp+4]			// Store/reload int before comparison.
+  |  fild dword [esp+4]			// Integral exponent used in vm_powi.
+  |  fucomip st1
+  |  jnz >8				// Branch for FP exponents.
+  |  jp >9				// Branch for NaN exponent.
+  |  fpop				// Pop y and fallthrough to vm_powi.
+  |
+  |// FP/int power function x^i. Arg1/ret on x87 stack.
+  |// Arg2 (int) on C stack. RC (eax) modified.
+  |// Caveat: needs 2 slots on x87 stack!
+  |  mov eax, [esp+4]
+  |  cmp eax, 1; jle >6			// i<=1?
+  |  // Now 1 < (unsigned)i <= 0x80000000.
+  |1:  // Handle leading zeros.
+  |  test eax, 1; jnz >2
+  |  fmul st0
+  |  shr eax, 1
+  |  jmp <1
+  |2:
+  |  shr eax, 1; jz >5
+  |  fdup
+  |3:  // Handle trailing bits.
+  |  fmul st0
+  |  shr eax, 1; jz >4
+  |  jnc <3
+  |  fmul st1, st0
+  |  jmp <3
+  |4:
+  |  fmulp st1
+  |5:
+  |  ret
+  |6:
+  |  je <5				// x^1 ==> x
+  |  jb >7
+  |  fld1; fdivrp st1
+  |  neg eax
+  |  cmp eax, 1; je <5			// x^-1 ==> 1/x
+  |  jmp <1				// x^-i ==> (1/x)^i
+  |7:
+  |  fpop; fld1				// x^0 ==> 1
+  |  ret
+  |
+  |8:  // FP/FP power function x^y.
+  |  fst dword [esp+4]
+  |  fxch
+  |  fst dword [esp+8]
+  |  mov eax, [esp+4]; shl eax, 1
+  |  cmp eax, 0xff000000; je >2			// x^+-Inf?
+  |  mov eax, [esp+8]; shl eax, 1; je >4	// +-0^y?
+  |  cmp eax, 0xff000000; je >4			// +-Inf^y?
+  |  fyl2x
+  |  jmp ->vm_exp2raw
+  |
+  |9:  // Handle x^NaN.
+  |  fld1
+  |  fucomip st2
+  |  je >1				// 1^NaN ==> 1
+  |  fxch				// x^NaN ==> NaN
+  |1:
+  |  fpop
+  |  ret
+  |
+  |2:  // Handle x^+-Inf.
+  |  fabs
+  |  fld1
+  |  fucomip st1
+  |  je >3					// +-1^+-Inf ==> 1
+  |  fpop; fabs; fldz; mov eax, 0; setc al
+  |  ror eax, 1; xor eax, [esp+4]; jns >3	// |x|<>1, x^+-Inf ==> +Inf/0
+  |  fxch
+  |3:
+  |  fpop1; fabs
+  |  ret
+  |
+  |4:  // Handle +-0^y or +-Inf^y.
+  |  cmp dword [esp+4], 0; jge <3		// y >= 0, x^y ==> |x|
+  |  fpop; fpop
+  |  test eax, eax; jz >5			// y < 0, +-0^y ==> +Inf
+  |  fldz					// y < 0, +-Inf^y ==> 0
+  |  ret
+  |5:
+  |  mov dword [esp+4], 0x7f800000		// Return +Inf.
+  |  fld dword [esp+4]
+  |  ret
+  |.endif
+  |
+  |// Args in xmm0/xmm1. Ret in xmm0. xmm0-xmm2 and RC (eax) modified.
+  |// Needs 16 byte scratch area for x86. Also called from JIT code.
+  |->vm_pow_sse:
+  |  cvtsd2si eax, xmm1
+  |  cvtsi2sd xmm2, eax
+  |  ucomisd xmm1, xmm2
+  |  jnz >8				// Branch for FP exponents.
+  |  jp >9				// Branch for NaN exponent.
+  |  // Fallthrough to vm_powi_sse.
+  |
+  |// Args in xmm0/eax. Ret in xmm0. xmm0-xmm1 and eax modified.
+  |->vm_powi_sse:
+  |  cmp eax, 1; jle >6			// i<=1?
+  |  // Now 1 < (unsigned)i <= 0x80000000.
+  |1:  // Handle leading zeros.
+  |  test eax, 1; jnz >2
+  |  mulsd xmm0, xmm0
+  |  shr eax, 1
+  |  jmp <1
+  |2:
+  |  shr eax, 1; jz >5
+  |  movaps xmm1, xmm0
+  |3:  // Handle trailing bits.
+  |  mulsd xmm0, xmm0
+  |  shr eax, 1; jz >4
+  |  jnc <3
+  |  mulsd xmm1, xmm0
+  |  jmp <3
+  |4:
+  |  mulsd xmm0, xmm1
+  |5:
+  |  ret
+  |6:
+  |  je <5				// x^1 ==> x
+  |  jb >7				// x^0 ==> 1
+  |  neg eax
+  |  call <1
+  |  sseconst_1 xmm1, RDa
+  |  divsd xmm1, xmm0
+  |  movaps xmm0, xmm1
+  |  ret
+  |7:
+  |  sseconst_1 xmm0, RDa
+  |  ret
+  |
+  |8:  // FP/FP power function x^y.
+  |.if X64
+  |  movd rax, xmm1; shl rax, 1
+  |  rol rax, 12; cmp rax, 0xffe; je >2		// x^+-Inf?
+  |  movd rax, xmm0; shl rax, 1; je >4		// +-0^y?
+  |  rol rax, 12; cmp rax, 0xffe; je >5		// +-Inf^y?
+  |  .if X64WIN
+  |    movsd qword [rsp+16], xmm1		// Use scratch area.
+  |    movsd qword [rsp+8], xmm0
+  |    fld qword [rsp+16]
+  |    fld qword [rsp+8]
+  |  .else
+  |    movsd qword [rsp-16], xmm1		// Use red zone.
+  |    movsd qword [rsp-8], xmm0
+  |    fld qword [rsp-16]
+  |    fld qword [rsp-8]
+  |  .endif
+  |.else
+  |  movsd qword [esp+12], xmm1			// Needs 16 byte scratch area.
+  |  movsd qword [esp+4], xmm0
+  |  cmp dword [esp+12], 0; jne >1
+  |  mov eax, [esp+16]; shl eax, 1
+  |  cmp eax, 0xffe00000; je >2			// x^+-Inf?
+  |1:
+  |  cmp dword [esp+4], 0; jne >1
+  |  mov eax, [esp+8]; shl eax, 1; je >4	// +-0^y?
+  |  cmp eax, 0xffe00000; je >5			// +-Inf^y?
+  |1:
+  |  fld qword [esp+12]
+  |  fld qword [esp+4]
+  |.endif
+  |  fyl2x					// y*log2(x)
+  |  fdup; frndint; fsub st1, st0; fxch		// Split into frac/int part.
+  |  f2xm1; fld1; faddp st1; fscale; fpop1	// ==> (2^frac-1 +1) << int
+  |.if X64WIN
+  |  fstp qword [rsp+8]				// Use scratch area.
+  |  movsd xmm0, qword [rsp+8]
+  |.elif X64
+  |  fstp qword [rsp-8]				// Use red zone.
+  |  movsd xmm0, qword [rsp-8]
+  |.else
+  |  fstp qword [esp+4]				// Needs 8 byte scratch area.
+  |  movsd xmm0, qword [esp+4]
+  |.endif
+  |  ret
+  |
+  |9:  // Handle x^NaN.
+  |  sseconst_1 xmm2, RDa
+  |  ucomisd xmm0, xmm2; je >1			// 1^NaN ==> 1
+  |  movaps xmm0, xmm1				// x^NaN ==> NaN
+  |1:
+  |  ret
+  |
+  |2:  // Handle x^+-Inf.
+  |  sseconst_abs xmm2, RDa
+  |  andpd xmm0, xmm2				// |x|
+  |  sseconst_1 xmm2, RDa
+  |  ucomisd xmm0, xmm2; je <1			// +-1^+-Inf ==> 1
+  |  movmskpd eax, xmm1
+  |  xorps xmm0, xmm0
+  |  mov ah, al; setc al; xor al, ah; jne <1	// |x|<>1, x^+-Inf ==> +Inf/0
+  |3:
+  |  sseconst_hi xmm0, RDa, 7ff00000  // +Inf
+  |  ret
+  |
+  |4:  // Handle +-0^y.
+  |  movmskpd eax, xmm1; test eax, eax; jnz <3	// y < 0, +-0^y ==> +Inf
+  |  xorps xmm0, xmm0				// y >= 0, +-0^y ==> 0
+  |  ret
+  |
+  |5:  // Handle +-Inf^y.
+  |  movmskpd eax, xmm1; test eax, eax; jz <3	// y >= 0, +-Inf^y ==> +Inf
+  |  xorps xmm0, xmm0				// y < 0, +-Inf^y ==> 0
+  |  ret
+  |
+  |// Callable from C: double lj_vm_foldfpm(double x, int fpm)
+  |// Computes fpm(x) for extended math functions. ORDER FPM.
+  |->vm_foldfpm:
+  |.if JIT
+  |.if X64
+  |  .if X64WIN
+  |    .define fpmop, CARG2d
+  |  .else
+  |    .define fpmop, CARG1d
+  |  .endif
+  |  cmp fpmop, 1; jb ->vm_floor; je ->vm_ceil
+  |  cmp fpmop, 3; jb ->vm_trunc; ja >2
+  |  sqrtsd xmm0, xmm0; ret
+  |2:
+  |  .if X64WIN
+  |    movsd qword [rsp+8], xmm0	// Use scratch area.
+  |    fld qword [rsp+8]
+  |  .else
+  |    movsd qword [rsp-8], xmm0	// Use red zone.
+  |    fld qword [rsp-8]
+  |  .endif
+  |  cmp fpmop, 5; ja >2
+  |  .if X64WIN; pop rax; .endif
+  |  je >1
+  |  call ->vm_exp_x87
+  |  .if X64WIN; push rax; .endif
+  |  jmp >7
+  |1:
+  |  call ->vm_exp2_x87
+  |  .if X64WIN; push rax; .endif
+  |  jmp >7
+  |2: ; cmp fpmop, 7; je >1; ja >2
+  |  fldln2; fxch; fyl2x; jmp >7
+  |1: ; fld1; fxch; fyl2x; jmp >7
+  |2: ; cmp fpmop, 9; je >1; ja >2
+  |  fldlg2; fxch; fyl2x; jmp >7
+  |1: ; fsin; jmp >7
+  |2: ; cmp fpmop, 11; je >1; ja >9
+  |   fcos; jmp >7
+  |1: ; fptan; fpop
+  |7:
+  |  .if X64WIN
+  |    fstp qword [rsp+8]		// Use scratch area.
+  |    movsd xmm0, qword [rsp+8]
+  |  .else
+  |    fstp qword [rsp-8]		// Use red zone.
+  |    movsd xmm0, qword [rsp-8]
+  |  .endif
+  |  ret
+  |.else  // x86 calling convention.
+  |  .define fpmop, eax
+  |.if SSE
+  |  mov fpmop, [esp+12]
+  |  movsd xmm0, qword [esp+4]
+  |  cmp fpmop, 1; je >1; ja >2
+  |  call ->vm_floor; jmp >7
+  |1: ; call ->vm_ceil; jmp >7
+  |2: ; cmp fpmop, 3; je >1; ja >2
+  |  call ->vm_trunc; jmp >7
+  |1:
+  |  sqrtsd xmm0, xmm0
+  |7:
+  |  movsd qword [esp+4], xmm0	// Overwrite callee-owned args.
+  |  fld qword [esp+4]
+  |  ret
+  |2: ; fld qword [esp+4]
+  |  cmp fpmop, 5; jb ->vm_exp_x87; je ->vm_exp2_x87
+  |2: ; cmp fpmop, 7; je >1; ja >2
+  |  fldln2; fxch; fyl2x; ret
+  |1: ; fld1; fxch; fyl2x; ret
+  |2: ; cmp fpmop, 9; je >1; ja >2
+  |  fldlg2; fxch; fyl2x; ret
+  |1: ; fsin; ret
+  |2: ; cmp fpmop, 11; je >1; ja >9
+  |   fcos; ret
+  |1: ; fptan; fpop; ret
+  |.else
+  |  mov fpmop, [esp+12]
+  |  fld qword [esp+4]
+  |  cmp fpmop, 1; jb ->vm_floor; je ->vm_ceil
+  |  cmp fpmop, 3; jb ->vm_trunc; ja >2
+  |  fsqrt; ret
+  |2: ; cmp fpmop, 5; jb ->vm_exp_x87; je ->vm_exp2_x87
+  |  cmp fpmop, 7; je >1; ja >2
+  |  fldln2; fxch; fyl2x; ret
+  |1: ; fld1; fxch; fyl2x; ret
+  |2: ; cmp fpmop, 9; je >1; ja >2
+  |  fldlg2; fxch; fyl2x; ret
+  |1: ; fsin; ret
+  |2: ; cmp fpmop, 11; je >1; ja >9
+  |   fcos; ret
+  |1: ; fptan; fpop; ret
+  |.endif
+  |.endif
+  |9: ; int3					// Bad fpm.
+  |.endif
+  |
+  |// Callable from C: double lj_vm_foldarith(double x, double y, int op)
+  |// Compute x op y for basic arithmetic operators (+ - * / % ^ and unary -)
+  |// and basic math functions. ORDER ARITH
+  |->vm_foldarith:
+  |.if X64
+  |
+  |  .if X64WIN
+  |    .define foldop, CARG3d
+  |  .else
+  |    .define foldop, CARG1d
+  |  .endif
+  |  cmp foldop, 1; je >1; ja >2
+  |  addsd xmm0, xmm1; ret
+  |1: ; subsd xmm0, xmm1; ret
+  |2: ; cmp foldop, 3; je >1; ja >2
+  |  mulsd xmm0, xmm1; ret
+  |1: ; divsd xmm0, xmm1; ret
+  |2: ; cmp foldop, 5; jb ->vm_mod; je ->vm_pow
+  |  cmp foldop, 7; je >1; ja >2
+  |  sseconst_sign xmm1, RDa; xorps xmm0, xmm1; ret
+  |1: ; sseconst_abs xmm1, RDa; andps xmm0, xmm1; ret
+  |2: ; cmp foldop, 9; ja >2
+  |.if X64WIN
+  |  movsd qword [rsp+8], xmm0	// Use scratch area.
+  |  movsd qword [rsp+16], xmm1
+  |  fld qword [rsp+8]
+  |  fld qword [rsp+16]
+  |.else
+  |  movsd qword [rsp-8], xmm0	// Use red zone.
+  |  movsd qword [rsp-16], xmm1
+  |  fld qword [rsp-8]
+  |  fld qword [rsp-16]
+  |.endif
+  |  je >1
+  |  fpatan
+  |7:
+  |.if X64WIN
+  |  fstp qword [rsp+8]		// Use scratch area.
+  |  movsd xmm0, qword [rsp+8]
+  |.else
+  |  fstp qword [rsp-8]		// Use red zone.
+  |  movsd xmm0, qword [rsp-8]
+  |.endif
+  |  ret
+  |1: ; fxch; fscale; fpop1; jmp <7
+  |2: ; cmp foldop, 11; je >1; ja >9
+  |  minsd xmm0, xmm1; ret
+  |1: ; maxsd xmm0, xmm1; ret
+  |9: ; int3				// Bad op.
+  |
+  |.elif SSE  // x86 calling convention with SSE ops.
+  |
+  |  .define foldop, eax
+  |  mov foldop, [esp+20]
+  |  movsd xmm0, qword [esp+4]
+  |  movsd xmm1, qword [esp+12]
+  |  cmp foldop, 1; je >1; ja >2
+  |  addsd xmm0, xmm1
+  |7:
+  |  movsd qword [esp+4], xmm0	// Overwrite callee-owned args.
+  |  fld qword [esp+4]
+  |  ret
+  |1: ; subsd xmm0, xmm1; jmp <7
+  |2: ; cmp foldop, 3; je >1; ja >2
+  |  mulsd xmm0, xmm1; jmp <7
+  |1: ; divsd xmm0, xmm1; jmp <7
+  |2: ; cmp foldop, 5
+  |  je >1; ja >2
+  |  call ->vm_mod; jmp <7
+  |1: ; pop edx; call ->vm_pow; push edx; jmp <7  // Writes to scratch area.
+  |2: ; cmp foldop, 7; je >1; ja >2
+  |  sseconst_sign xmm1, RDa; xorps xmm0, xmm1; jmp <7
+  |1: ; sseconst_abs xmm1, RDa; andps xmm0, xmm1; jmp <7
+  |2: ; cmp foldop, 9; ja >2
+  |  fld qword [esp+4]		// Reload from stack
+  |  fld qword [esp+12]
+  |  je >1
+  |  fpatan; ret
+  |1: ; fxch; fscale; fpop1; ret
+  |2: ; cmp foldop, 11; je >1; ja >9
+  |  minsd xmm0, xmm1; jmp <7
+  |1: ; maxsd xmm0, xmm1; jmp <7
+  |9: ; int3				// Bad op.
+  |
+  |.else  // x86 calling convention with x87 ops.
+  |
+  |  mov eax, [esp+20]
+  |  fld qword [esp+4]
+  |  fld qword [esp+12]
+  |  cmp eax, 1; je >1; ja >2
+  |  faddp st1; ret
+  |1: ; fsubp st1; ret
+  |2: ; cmp eax, 3; je >1; ja >2
+  |  fmulp st1; ret
+  |1: ; fdivp st1; ret
+  |2: ; cmp eax, 5; jb ->vm_mod; je ->vm_pow
+  |  cmp eax, 7; je >1; ja >2
+  |  fpop; fchs; ret
+  |1: ; fpop; fabs; ret
+  |2: ; cmp eax, 9; je >1; ja >2
+  |  fpatan; ret
+  |1: ; fxch; fscale; fpop1; ret
+  |2: ; cmp eax, 11; je >1; ja >9
+  |  fucomi st1; fcmovnbe st1; fpop1; ret
+  |1: ; fucomi st1; fcmovbe st1; fpop1; ret
+  |9: ; int3				// Bad op.
+  |
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// int lj_vm_cpuid(uint32_t f, uint32_t res[4])
+  |->vm_cpuid:
+  |.if X64
+  |  mov eax, CARG1d
+  |  .if X64WIN; push rsi; mov rsi, CARG2; .endif
+  |  push rbx
+  |  cpuid
+  |  mov [rsi], eax
+  |  mov [rsi+4], ebx
+  |  mov [rsi+8], ecx
+  |  mov [rsi+12], edx
+  |  pop rbx
+  |  .if X64WIN; pop rsi; .endif
+  |  ret
+  |.else
+  |  pushfd
+  |  pop edx
+  |  mov ecx, edx
+  |  xor edx, 0x00200000		// Toggle ID bit in flags.
+  |  push edx
+  |  popfd
+  |  pushfd
+  |  pop edx
+  |  xor eax, eax			// Zero means no features supported.
+  |  cmp ecx, edx
+  |  jz >1				// No ID toggle means no CPUID support.
+  |  mov eax, [esp+4]			// Argument 1 is function number.
+  |  push edi
+  |  push ebx
+  |  cpuid
+  |  mov edi, [esp+16]			// Argument 2 is result area.
+  |  mov [edi], eax
+  |  mov [edi+4], ebx
+  |  mov [edi+8], ecx
+  |  mov [edi+12], edx
+  |  pop ebx
+  |  pop edi
+  |1:
+  |  ret
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Assertions ---------------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->assert_bad_for_arg_type:
+#ifdef LUA_USE_ASSERT
+  |  int3
+#endif
+  |  int3
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in ah/al.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |.if not X64
+  |  sub esp, 16			// Leave room for SAVE_ERRF etc.
+  |.endif
+  |  saveregs_	// ebp/rbp already saved. ebp now holds global_State *.
+  |  lea DISPATCH, [ebp+GG_G2DISP]
+  |  mov CTSTATE, GL:ebp->ctype_state
+  |  movzx eax, ax
+  |  mov CTSTATE->cb.slot, eax
+  |.if X64
+  |  mov CTSTATE->cb.gpr[0], CARG1
+  |  mov CTSTATE->cb.gpr[1], CARG2
+  |  mov CTSTATE->cb.gpr[2], CARG3
+  |  mov CTSTATE->cb.gpr[3], CARG4
+  |  movsd qword CTSTATE->cb.fpr[0], xmm0
+  |  movsd qword CTSTATE->cb.fpr[1], xmm1
+  |  movsd qword CTSTATE->cb.fpr[2], xmm2
+  |  movsd qword CTSTATE->cb.fpr[3], xmm3
+  |.if X64WIN
+  |  lea rax, [rsp+CFRAME_SIZE+4*8]
+  |.else
+  |  lea rax, [rsp+CFRAME_SIZE]
+  |  mov CTSTATE->cb.gpr[4], CARG5
+  |  mov CTSTATE->cb.gpr[5], CARG6
+  |  movsd qword CTSTATE->cb.fpr[4], xmm4
+  |  movsd qword CTSTATE->cb.fpr[5], xmm5
+  |  movsd qword CTSTATE->cb.fpr[6], xmm6
+  |  movsd qword CTSTATE->cb.fpr[7], xmm7
+  |.endif
+  |  mov CTSTATE->cb.stack, rax
+  |  mov CARG2, rsp
+  |.else
+  |  lea eax, [esp+CFRAME_SIZE+16]
+  |  mov CTSTATE->cb.gpr[0], FCARG1
+  |  mov CTSTATE->cb.gpr[1], FCARG2
+  |  mov CTSTATE->cb.stack, eax
+  |  mov FCARG1, [esp+CFRAME_SIZE+12]	// Move around misplaced retaddr/ebp.
+  |  mov FCARG2, [esp+CFRAME_SIZE+8]
+  |  mov SAVE_RET, FCARG1
+  |  mov SAVE_R4, FCARG2
+  |  mov FCARG2, esp
+  |.endif
+  |  mov SAVE_PC, CTSTATE		// Any value outside of bytecode is ok.
+  |  mov FCARG1, CTSTATE
+  |  call extern lj_ccallback_enter@8	// (CTState *cts, void *cf)
+  |  // lua_State * returned in eax (RD).
+  |  set_vmstate INTERP
+  |  mov BASE, L:RD->base
+  |  mov RD, L:RD->top
+  |  sub RD, BASE
+  |  mov LFUNC:RB, [BASE-8]
+  |  shr RD, 3
+  |  add RD, 1
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  mov L:RA, SAVE_L
+  |  mov CTSTATE, [DISPATCH+DISPATCH_GL(ctype_state)]
+  |  mov aword CTSTATE->L, L:RAa
+  |  mov L:RA->base, BASE
+  |  mov L:RA->top, RB
+  |  mov FCARG1, CTSTATE
+  |  mov FCARG2, RC
+  |  call extern lj_ccallback_leave@8	// (CTState *cts, TValue *o)
+  |.if X64
+  |  mov rax, CTSTATE->cb.gpr[0]
+  |  movsd xmm0, qword CTSTATE->cb.fpr[0]
+  |  jmp ->vm_leave_unw
+  |.else
+  |  mov L:RB, SAVE_L
+  |  mov eax, CTSTATE->cb.gpr[0]
+  |  mov edx, CTSTATE->cb.gpr[1]
+  |  cmp dword CTSTATE->cb.gpr[2], 1
+  |  jb >7
+  |  je >6
+  |  fld qword CTSTATE->cb.fpr[0].d
+  |  jmp >7
+  |6:
+  |  fld dword CTSTATE->cb.fpr[0].f
+  |7:
+  |  mov ecx, L:RB->top
+  |  movzx ecx, word [ecx+6]		// Get stack adjustment and copy up.
+  |  mov SAVE_L, ecx			// Must be one slot above SAVE_RET
+  |  restoreregs
+  |  pop ecx				// Move return addr from SAVE_RET.
+  |  add esp, [esp]			// Adjust stack.
+  |  add esp, 16
+  |  push ecx
+  |  ret
+  |.endif
+  |.endif
+  |
+  |->vm_ffi_call@4:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |.if X64
+  |  .type CCSTATE, CCallState, rbx
+  |  push rbp; mov rbp, rsp; push rbx; mov CCSTATE, CARG1
+  |.else
+  |  .type CCSTATE, CCallState, ebx
+  |  push ebp; mov ebp, esp; push ebx; mov CCSTATE, FCARG1
+  |.endif
+  |
+  |  // Readjust stack.
+  |.if X64
+  |  mov eax, CCSTATE->spadj
+  |  sub rsp, rax
+  |.else
+  |  sub esp, CCSTATE->spadj
+  |.if WIN
+  |  mov CCSTATE->spadj, esp
+  |.endif
+  |.endif
+  |
+  |  // Copy stack slots.
+  |  movzx ecx, byte CCSTATE->nsp
+  |  sub ecx, 1
+  |  js >2
+  |1:
+  |.if X64
+  |  mov rax, [CCSTATE+rcx*8+offsetof(CCallState, stack)]
+  |  mov [rsp+rcx*8+CCALL_SPS_EXTRA*8], rax
+  |.else
+  |  mov eax, [CCSTATE+ecx*4+offsetof(CCallState, stack)]
+  |  mov [esp+ecx*4], eax
+  |.endif
+  |  sub ecx, 1
+  |  jns <1
+  |2:
+  |
+  |.if X64
+  |  movzx eax, byte CCSTATE->nfpr
+  |  mov CARG1, CCSTATE->gpr[0]
+  |  mov CARG2, CCSTATE->gpr[1]
+  |  mov CARG3, CCSTATE->gpr[2]
+  |  mov CARG4, CCSTATE->gpr[3]
+  |.if not X64WIN
+  |  mov CARG5, CCSTATE->gpr[4]
+  |  mov CARG6, CCSTATE->gpr[5]
+  |.endif
+  |  test eax, eax; jz >5
+  |  movaps xmm0, CCSTATE->fpr[0]
+  |  movaps xmm1, CCSTATE->fpr[1]
+  |  movaps xmm2, CCSTATE->fpr[2]
+  |  movaps xmm3, CCSTATE->fpr[3]
+  |.if not X64WIN
+  |  cmp eax, 4; jbe >5
+  |  movaps xmm4, CCSTATE->fpr[4]
+  |  movaps xmm5, CCSTATE->fpr[5]
+  |  movaps xmm6, CCSTATE->fpr[6]
+  |  movaps xmm7, CCSTATE->fpr[7]
+  |.endif
+  |5:
+  |.else
+  |  mov FCARG1, CCSTATE->gpr[0]
+  |  mov FCARG2, CCSTATE->gpr[1]
+  |.endif
+  |
+  |  call aword CCSTATE->func
+  |
+  |.if X64
+  |  mov CCSTATE->gpr[0], rax
+  |  movaps CCSTATE->fpr[0], xmm0
+  |.if not X64WIN
+  |  mov CCSTATE->gpr[1], rdx
+  |  movaps CCSTATE->fpr[1], xmm1
+  |.endif
+  |.else
+  |  mov CCSTATE->gpr[0], eax
+  |  mov CCSTATE->gpr[1], edx
+  |  cmp byte CCSTATE->resx87, 1
+  |  jb >7
+  |  je >6
+  |  fstp qword CCSTATE->fpr[0].d[0]
+  |  jmp >7
+  |6:
+  |  fstp dword CCSTATE->fpr[0].f[0]
+  |7:
+  |.if WIN
+  |  sub CCSTATE->spadj, esp
+  |.endif
+  |.endif
+  |
+  |.if X64
+  |  mov rbx, [rbp-8]; leave; ret
+  |.else
+  |  mov ebx, [ebp-4]; leave; ret
+  |.endif
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |// Note: aligning all instructions does not pay off.
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  |.macro jmp_comp, lt, ge, le, gt, target
+  ||switch (op) {
+  ||case BC_ISLT:
+  |   lt target
+  ||break;
+  ||case BC_ISGE:
+  |   ge target
+  ||break;
+  ||case BC_ISLE:
+  |   le target
+  ||break;
+  ||case BC_ISGT:
+  |   gt target
+  ||break;
+  ||default: break;  /* Shut up GCC. */
+  ||}
+  |.endmacro
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1, RD = src2, JMP with RD = target
+    |  ins_AD
+    |.if DUALNUM
+    |  checkint RA, >7
+    |  checkint RD, >8
+    |  mov RB, dword [BASE+RA*8]
+    |  add PC, 4
+    |  cmp RB, dword [BASE+RD*8]
+    |  jmp_comp jge, jl, jg, jle, >9
+    |6:
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  ja ->vmeta_comp
+    |  // RA is a number.
+    |  cmp dword [BASE+RD*8+4], LJ_TISNUM; jb >1; jne ->vmeta_comp
+    |  // RA is a number, RD is an integer.
+    |.if SSE
+    |  cvtsi2sd xmm0, dword [BASE+RD*8]
+    |  jmp >2
+    |.else
+    |  fld qword [BASE+RA*8]
+    |  fild dword [BASE+RD*8]
+    |  jmp >3
+    |.endif
+    |
+    |8:  // RA is an integer, RD is not an integer.
+    |  ja ->vmeta_comp
+    |  // RA is an integer, RD is a number.
+    |.if SSE
+    |  cvtsi2sd xmm1, dword [BASE+RA*8]
+    |  movsd xmm0, qword [BASE+RD*8]
+    |  add PC, 4
+    |  ucomisd xmm0, xmm1
+    |  jmp_comp jbe, ja, jb, jae, <9
+    |  jmp <6
+    |.else
+    |  fild dword [BASE+RA*8]
+    |  jmp >2
+    |.endif
+    |.else
+    |  checknum RA, ->vmeta_comp
+    |  checknum RD, ->vmeta_comp
+    |.endif
+    |.if SSE
+    |1:
+    |  movsd xmm0, qword [BASE+RD*8]
+    |2:
+    |  add PC, 4
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |3:
+    |.else
+    |1:
+    |  fld qword [BASE+RA*8]		// Reverse order, i.e like cmp D, A.
+    |2:
+    |  fld qword [BASE+RD*8]
+    |3:
+    |  add PC, 4
+    |  fcomparepp
+    |.endif
+    |  // Unordered: all of ZF CF PF set, ordered: PF clear.
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    |.if DUALNUM
+    |  jmp_comp jbe, ja, jb, jae, <9
+    |  jmp <6
+    |.else
+    |  jmp_comp jbe, ja, jb, jae, >1
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |1:
+    |  ins_next
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  ins_AD	// RA = src1, RD = src2, JMP with RD = target
+    |  mov RB, [BASE+RD*8+4]
+    |  add PC, 4
+    |.if DUALNUM
+    |  cmp RB, LJ_TISNUM; jne >7
+    |  checkint RA, >8
+    |  mov RB, dword [BASE+RD*8]
+    |  cmp RB, dword [BASE+RA*8]
+    if (vk) {
+      |  jne >9
+    } else {
+      |  je >9
+    }
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RD is not an integer.
+    |  ja >5
+    |  // RD is a number.
+    |  cmp dword [BASE+RA*8+4], LJ_TISNUM; jb >1; jne >5
+    |  // RD is a number, RA is an integer.
+    |.if SSE
+    |  cvtsi2sd xmm0, dword [BASE+RA*8]
+    |.else
+    |  fild dword [BASE+RA*8]
+    |.endif
+    |  jmp >2
+    |
+    |8:  // RD is an integer, RA is not an integer.
+    |  ja >5
+    |  // RD is an integer, RA is a number.
+    |.if SSE
+    |  cvtsi2sd xmm0, dword [BASE+RD*8]
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |.else
+    |  fild dword [BASE+RD*8]
+    |  fld qword [BASE+RA*8]
+    |.endif
+    |  jmp >4
+    |
+    |.else
+    |  cmp RB, LJ_TISNUM; jae >5
+    |  checknum RA, >5
+    |.endif
+    |.if SSE
+    |1:
+    |  movsd xmm0, qword [BASE+RA*8]
+    |2:
+    |  ucomisd xmm0, qword [BASE+RD*8]
+    |4:
+    |.else
+    |1:
+    |  fld qword [BASE+RA*8]
+    |2:
+    |  fld qword [BASE+RD*8]
+    |4:
+    |  fcomparepp
+    |.endif
+  iseqne_fp:
+    if (vk) {
+      |  jp >2				// Unordered means not equal.
+      |  jne >2
+    } else {
+      |  jp >2				// Unordered means not equal.
+      |  je >1
+    }
+  iseqne_end:
+    if (vk) {
+      |1:				// EQ: Branch to the target.
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |2:				// NE: Fallthrough to next instruction.
+      |.if not FFI
+      |3:
+      |.endif
+    } else {
+      |.if not FFI
+      |3:
+      |.endif
+      |2:				// NE: Branch to the target.
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |1:				// EQ: Fallthrough to next instruction.
+    }
+    if (LJ_DUALNUM && (op == BC_ISEQV || op == BC_ISNEV ||
+		       op == BC_ISEQN || op == BC_ISNEN)) {
+      |  jmp <9
+    } else {
+      |  ins_next
+    }
+    |
+    if (op == BC_ISEQV || op == BC_ISNEV) {
+      |5:  // Either or both types are not numbers.
+      |.if FFI
+      |  cmp RB, LJ_TCDATA; je ->vmeta_equal_cd
+      |  checktp RA, LJ_TCDATA; je ->vmeta_equal_cd
+      |.endif
+      |  checktp RA, RB			// Compare types.
+      |  jne <2				// Not the same type?
+      |  cmp RB, LJ_TISPRI
+      |  jae <1				// Same type and primitive type?
+      |
+      |  // Same types and not a primitive type. Compare GCobj or pvalue.
+      |  mov RA, [BASE+RA*8]
+      |  mov RD, [BASE+RD*8]
+      |  cmp RA, RD
+      |  je <1				// Same GCobjs or pvalues?
+      |  cmp RB, LJ_TISTABUD
+      |  ja <2				// Different objects and not table/ud?
+      |.if X64
+      |  cmp RB, LJ_TUDATA		// And not 64 bit lightuserdata.
+      |  jb <2
+      |.endif
+      |
+      |  // Different tables or userdatas. Need to check __eq metamethod.
+      |  // Field metatable must be at same offset for GCtab and GCudata!
+      |  mov TAB:RB, TAB:RA->metatable
+      |  test TAB:RB, TAB:RB
+      |  jz <2				// No metatable?
+      |  test byte TAB:RB->nomm, 1<<MM_eq
+      |  jnz <2				// Or 'no __eq' flag set?
+      if (vk) {
+	|  xor RB, RB			// ne = 0
+      } else {
+	|  mov RB, 1			// ne = 1
+      }
+      |  jmp ->vmeta_equal		// Handle __eq metamethod.
+    } else {
+      |.if FFI
+      |3:
+      |  cmp RB, LJ_TCDATA
+      if (LJ_DUALNUM && vk) {
+	|  jne <9
+      } else {
+	|  jne <2
+      }
+      |  jmp ->vmeta_equal_cd
+      |.endif
+    }
+    break;
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  ins_AND	// RA = src, RD = str const, JMP with RD = target
+    |  mov RB, [BASE+RA*8+4]
+    |  add PC, 4
+    |  cmp RB, LJ_TSTR; jne >3
+    |  mov RA, [BASE+RA*8]
+    |  cmp RA, [KBASE+RD*4]
+  iseqne_test:
+    if (vk) {
+      |  jne >2
+    } else {
+      |  je >1
+    }
+    goto iseqne_end;
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  ins_AD	// RA = src, RD = num const, JMP with RD = target
+    |  mov RB, [BASE+RA*8+4]
+    |  add PC, 4
+    |.if DUALNUM
+    |  cmp RB, LJ_TISNUM; jne >7
+    |  cmp dword [KBASE+RD*8+4], LJ_TISNUM; jne >8
+    |  mov RB, dword [KBASE+RD*8]
+    |  cmp RB, dword [BASE+RA*8]
+    if (vk) {
+      |  jne >9
+    } else {
+      |  je >9
+    }
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  ja >3
+    |  // RA is a number.
+    |  cmp dword [KBASE+RD*8+4], LJ_TISNUM; jb >1
+    |  // RA is a number, RD is an integer.
+    |.if SSE
+    |  cvtsi2sd xmm0, dword [KBASE+RD*8]
+    |.else
+    |  fild dword [KBASE+RD*8]
+    |.endif
+    |  jmp >2
+    |
+    |8:  // RA is an integer, RD is a number.
+    |.if SSE
+    |  cvtsi2sd xmm0, dword [BASE+RA*8]
+    |  ucomisd xmm0, qword [KBASE+RD*8]
+    |.else
+    |  fild dword [BASE+RA*8]
+    |  fld qword [KBASE+RD*8]
+    |.endif
+    |  jmp >4
+    |.else
+    |  cmp RB, LJ_TISNUM; jae >3
+    |.endif
+    |.if SSE
+    |1:
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |2:
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |4:
+    |.else
+    |1:
+    |  fld qword [KBASE+RD*8]
+    |2:
+    |  fld qword [BASE+RA*8]
+    |4:
+    |  fcomparepp
+    |.endif
+    goto iseqne_fp;
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  ins_AND	// RA = src, RD = primitive type (~), JMP with RD = target
+    |  mov RB, [BASE+RA*8+4]
+    |  add PC, 4
+    |  cmp RB, RD
+    if (!LJ_HASFFI) goto iseqne_test;
+    if (vk) {
+      |  jne >3
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |2:
+      |  ins_next
+      |3:
+      |  cmp RB, LJ_TCDATA; jne <2
+      |  jmp ->vmeta_equal_cd
+    } else {
+      |  je >2
+      |  cmp RB, LJ_TCDATA; je ->vmeta_equal_cd
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |2:
+      |  ins_next
+    }
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  ins_AD	// RA = dst or unused, RD = src, JMP with RD = target
+    |  mov RB, [BASE+RD*8+4]
+    |  add PC, 4
+    |  cmp RB, LJ_TISTRUECOND
+    if (op == BC_IST || op == BC_ISTC) {
+      |  jae >1
+    } else {
+      |  jb >1
+    }
+    if (op == BC_ISTC || op == BC_ISFC) {
+      |  mov [BASE+RA*8+4], RB
+      |  mov RB, [BASE+RD*8]
+      |  mov [BASE+RA*8], RB
+    }
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |1:					// Fallthrough to the next instruction.
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  ins_AD	// RA = dst, RD = src
+    |.if X64
+    |  mov RBa, [BASE+RD*8]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [BASE+RD*8+4]
+    |  mov RD, [BASE+RD*8]
+    |  mov [BASE+RA*8+4], RB
+    |  mov [BASE+RA*8], RD
+    |.endif
+    |  ins_next_
+    break;
+  case BC_NOT:
+    |  ins_AD	// RA = dst, RD = src
+    |  xor RB, RB
+    |  checktp RD, LJ_TISTRUECOND
+    |  adc RB, LJ_TTRUE
+    |  mov [BASE+RA*8+4], RB
+    |  ins_next
+    break;
+  case BC_UNM:
+    |  ins_AD	// RA = dst, RD = src
+    |.if DUALNUM
+    |  checkint RD, >5
+    |  mov RB, [BASE+RD*8]
+    |  neg RB
+    |  jo >4
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RB
+    |9:
+    |  ins_next
+    |4:
+    |  mov dword [BASE+RA*8+4], 0x41e00000  // 2^31.
+    |  mov dword [BASE+RA*8], 0
+    |  jmp <9
+    |5:
+    |  ja ->vmeta_unm
+    |.else
+    |  checknum RD, ->vmeta_unm
+    |.endif
+    |.if SSE
+    |  movsd xmm0, qword [BASE+RD*8]
+    |  sseconst_sign xmm1, RDa
+    |  xorps xmm0, xmm1
+    |  movsd qword [BASE+RA*8], xmm0
+    |.else
+    |  fld qword [BASE+RD*8]
+    |  fchs
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |.if DUALNUM
+    |  jmp <9
+    |.else
+    |  ins_next
+    |.endif
+    break;
+  case BC_LEN:
+    |  ins_AD	// RA = dst, RD = src
+    |  checkstr RD, >2
+    |  mov STR:RD, [BASE+RD*8]
+    |.if DUALNUM
+    |  mov RD, dword STR:RD->len
+    |1:
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RD
+    |.elif SSE
+    |  xorps xmm0, xmm0
+    |  cvtsi2sd xmm0, dword STR:RD->len
+    |1:
+    |  movsd qword [BASE+RA*8], xmm0
+    |.else
+    |  fild dword STR:RD->len
+    |1:
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |  ins_next
+    |2:
+    |  checktab RD, ->vmeta_len
+    |  mov TAB:FCARG1, [BASE+RD*8]
+#if LJ_52
+    |  mov TAB:RB, TAB:FCARG1->metatable
+    |  cmp TAB:RB, 0
+    |  jnz >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  mov RB, BASE			// Save BASE.
+    |  call extern lj_tab_len@4		// (GCtab *t)
+    |  // Length of table returned in eax (RD).
+    |.if DUALNUM
+    |  // Nothing to do.
+    |.elif SSE
+    |  cvtsi2sd xmm0, RD
+    |.else
+    |  mov ARG1, RD
+    |  fild ARG1
+    |.endif
+    |  mov BASE, RB			// Restore BASE.
+    |  movzx RA, PC_RA
+    |  jmp <1
+#if LJ_52
+    |9:  // Check for __len.
+    |  test byte TAB:RB->nomm, 1<<MM_len
+    |  jnz <3
+    |  jmp ->vmeta_len			// 'no __len' flag NOT set: check.
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre, x87ins, sseins, ssereg
+    |  ins_ABC
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   checknum RB, ->vmeta_arith_vn
+    |   .if DUALNUM
+    |     cmp dword [KBASE+RC*8+4], LJ_TISNUM; jae ->vmeta_arith_vn
+    |   .endif
+    |   .if SSE
+    |     movsd xmm0, qword [BASE+RB*8]
+    |     sseins ssereg, qword [KBASE+RC*8]
+    |   .else
+    |     fld qword [BASE+RB*8]
+    |     x87ins qword [KBASE+RC*8]
+    |   .endif
+    ||  break;
+    ||case 1:
+    |   checknum RB, ->vmeta_arith_nv
+    |   .if DUALNUM
+    |     cmp dword [KBASE+RC*8+4], LJ_TISNUM; jae ->vmeta_arith_nv
+    |   .endif
+    |   .if SSE
+    |     movsd xmm0, qword [KBASE+RC*8]
+    |     sseins ssereg, qword [BASE+RB*8]
+    |   .else
+    |     fld qword [KBASE+RC*8]
+    |     x87ins qword [BASE+RB*8]
+    |   .endif
+    ||  break;
+    ||default:
+    |   checknum RB, ->vmeta_arith_vv
+    |   checknum RC, ->vmeta_arith_vv
+    |   .if SSE
+    |     movsd xmm0, qword [BASE+RB*8]
+    |     sseins ssereg, qword [BASE+RC*8]
+    |   .else
+    |     fld qword [BASE+RB*8]
+    |     x87ins qword [BASE+RC*8]
+    |   .endif
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins
+    |  ins_ABC
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   checkint RB, ->vmeta_arith_vn
+    |   cmp dword [KBASE+RC*8+4], LJ_TISNUM; jne ->vmeta_arith_vn
+    |   mov RB, [BASE+RB*8]
+    |   intins RB, [KBASE+RC*8]; jo ->vmeta_arith_vno
+    ||  break;
+    ||case 1:
+    |   checkint RB, ->vmeta_arith_nv
+    |   cmp dword [KBASE+RC*8+4], LJ_TISNUM; jne ->vmeta_arith_nv
+    |   mov RC, [KBASE+RC*8]
+    |   intins RC, [BASE+RB*8]; jo ->vmeta_arith_nvo
+    ||  break;
+    ||default:
+    |   checkint RB, ->vmeta_arith_vv
+    |   checkint RC, ->vmeta_arith_vv
+    |   mov RB, [BASE+RB*8]
+    |   intins RB, [BASE+RC*8]; jo ->vmeta_arith_vvo
+    ||  break;
+    ||}
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    ||if (vk == 1) {
+    |   mov dword [BASE+RA*8], RC
+    ||} else {
+    |   mov dword [BASE+RA*8], RB
+    ||}
+    |  ins_next
+    |.endmacro
+    |
+    |.macro ins_arithpost
+    |.if SSE
+    |  movsd qword [BASE+RA*8], xmm0
+    |.else
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arith, x87ins, sseins
+    |  ins_arithpre x87ins, sseins, xmm0
+    |  ins_arithpost
+    |  ins_next
+    |.endmacro
+    |
+    |.macro ins_arith, intins, x87ins, sseins
+    |.if DUALNUM
+    |  ins_arithdn intins
+    |.else
+    |  ins_arith, x87ins, sseins
+    |.endif
+    |.endmacro
+
+    |  // RA = dst, RB = src1 or num const, RC = src2 or num const
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith add, fadd, addsd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith sub, fsub, subsd
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith imul, fmul, mulsd
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arith fdiv, divsd
+    break;
+  case BC_MODVN:
+    |  ins_arithpre fld, movsd, xmm1
+    |->BC_MODVN_Z:
+    |  call ->vm_mod
+    |  ins_arithpost
+    |  ins_next
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arithpre fld, movsd, xmm1
+    |  jmp ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    break;
+  case BC_POW:
+    |  ins_arithpre fld, movsd, xmm1
+    |  call ->vm_pow
+    |  ins_arithpost
+    |  ins_next
+    break;
+
+  case BC_CAT:
+    |  ins_ABC	// RA = dst, RB = src_start, RC = src_end
+    |.if X64
+    |  mov L:CARG1d, SAVE_L
+    |  mov L:CARG1d->base, BASE
+    |  lea CARG2d, [BASE+RC*8]
+    |  mov CARG3d, RC
+    |  sub CARG3d, RB
+    |->BC_CAT_Z:
+    |  mov L:RB, L:CARG1d
+    |.else
+    |  lea RA, [BASE+RC*8]
+    |  sub RC, RB
+    |  mov ARG2, RA
+    |  mov ARG3, RC
+    |->BC_CAT_Z:
+    |  mov L:RB, SAVE_L
+    |  mov ARG1, L:RB
+    |  mov L:RB->base, BASE
+    |.endif
+    |  mov SAVE_PC, PC
+    |  call extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // NULL (finished) or TValue * (metamethod) returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  test RC, RC
+    |  jnz ->vmeta_binop
+    |  movzx RB, PC_RB			// Copy result to Stk[RA] from Stk[RB].
+    |  movzx RA, PC_RA
+    |.if X64
+    |  mov RCa, [BASE+RB*8]
+    |  mov [BASE+RA*8], RCa
+    |.else
+    |  mov RC, [BASE+RB*8+4]
+    |  mov RB, [BASE+RB*8]
+    |  mov [BASE+RA*8+4], RC
+    |  mov [BASE+RA*8], RB
+    |.endif
+    |  ins_next
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  ins_AND	// RA = dst, RD = str const (~)
+    |  mov RD, [KBASE+RD*4]
+    |  mov dword [BASE+RA*8+4], LJ_TSTR
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  ins_AND	// RA = dst, RD = cdata const (~)
+    |  mov RD, [KBASE+RD*4]
+    |  mov dword [BASE+RA*8+4], LJ_TCDATA
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  ins_AD	// RA = dst, RD = signed int16 literal
+    |.if DUALNUM
+    |  movsx RD, RDW
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RD
+    |.elif SSE
+    |  movsx RD, RDW			// Sign-extend literal.
+    |  cvtsi2sd xmm0, RD
+    |  movsd qword [BASE+RA*8], xmm0
+    |.else
+    |  fild PC_RD			// Refetch signed RD from instruction.
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |  ins_next
+    break;
+  case BC_KNUM:
+    |  ins_AD	// RA = dst, RD = num const
+    |.if SSE
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |  movsd qword [BASE+RA*8], xmm0
+    |.else
+    |  fld qword [KBASE+RD*8]
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |  ins_next
+    break;
+  case BC_KPRI:
+    |  ins_AND	// RA = dst, RD = primitive type (~)
+    |  mov [BASE+RA*8+4], RD
+    |  ins_next
+    break;
+  case BC_KNIL:
+    |  ins_AD	// RA = dst_start, RD = dst_end
+    |  lea RA, [BASE+RA*8+12]
+    |  lea RD, [BASE+RD*8+4]
+    |  mov RB, LJ_TNIL
+    |  mov [RA-8], RB			// Sets minimum 2 slots.
+    |1:
+    |  mov [RA], RB
+    |  add RA, 8
+    |  cmp RA, RD
+    |  jbe <1
+    |  ins_next
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  ins_AD	// RA = dst, RD = upvalue #
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RD*4+offsetof(GCfuncL, uvptr)]
+    |  mov RB, UPVAL:RB->v
+    |.if X64
+    |  mov RDa, [RB]
+    |  mov [BASE+RA*8], RDa
+    |.else
+    |  mov RD, [RB+4]
+    |  mov RB, [RB]
+    |  mov [BASE+RA*8+4], RD
+    |  mov [BASE+RA*8], RB
+    |.endif
+    |  ins_next
+    break;
+  case BC_USETV:
+#define TV2MARKOFS \
+ ((int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv))
+    |  ins_AD	// RA = upvalue #, RD = src
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  cmp byte UPVAL:RB->closed, 0
+    |  mov RB, UPVAL:RB->v
+    |  mov RA, [BASE+RD*8]
+    |  mov RD, [BASE+RD*8+4]
+    |  mov [RB], RA
+    |  mov [RB+4], RD
+    |  jz >1
+    |  // Check barrier for closed upvalue.
+    |  test byte [RB+TV2MARKOFS], LJ_GC_BLACK		// isblack(uv)
+    |  jnz >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Upvalue is black. Check if new value is collectable and white.
+    |  sub RD, LJ_TISGCV
+    |  cmp RD, LJ_TNUMX - LJ_TISGCV			// tvisgcv(v)
+    |  jbe <1
+    |  test byte GCOBJ:RA->gch.marked, LJ_GC_WHITES	// iswhite(v)
+    |  jz <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if X64 and not X64WIN
+    |  mov FCARG2, RB
+    |  mov RB, BASE			// Save BASE.
+    |.else
+    |  xchg FCARG2, RB			// Save BASE (FCARG2 == BASE).
+    |.endif
+    |  lea GL:FCARG1, [DISPATCH+GG_DISP2G]
+    |  call extern lj_gc_barrieruv@8	// (global_State *g, TValue *tv)
+    |  mov BASE, RB			// Restore BASE.
+    |  jmp <1
+    break;
+#undef TV2MARKOFS
+  case BC_USETS:
+    |  ins_AND	// RA = upvalue #, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  mov GCOBJ:RA, [KBASE+RD*4]
+    |  mov RD, UPVAL:RB->v
+    |  mov [RD], GCOBJ:RA
+    |  mov dword [RD+4], LJ_TSTR
+    |  test byte UPVAL:RB->marked, LJ_GC_BLACK		// isblack(uv)
+    |  jnz >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  test byte GCOBJ:RA->gch.marked, LJ_GC_WHITES	// iswhite(str)
+    |  jz <1
+    |  cmp byte UPVAL:RB->closed, 0
+    |  jz <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  mov RB, BASE			// Save BASE (FCARG2 == BASE).
+    |  mov FCARG2, RD
+    |  lea GL:FCARG1, [DISPATCH+GG_DISP2G]
+    |  call extern lj_gc_barrieruv@8	// (global_State *g, TValue *tv)
+    |  mov BASE, RB			// Restore BASE.
+    |  jmp <1
+    break;
+  case BC_USETN:
+    |  ins_AD	// RA = upvalue #, RD = num const
+    |  mov LFUNC:RB, [BASE-8]
+    |.if SSE
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |.else
+    |  fld qword [KBASE+RD*8]
+    |.endif
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  mov RA, UPVAL:RB->v
+    |.if SSE
+    |  movsd qword [RA], xmm0
+    |.else
+    |  fstp qword [RA]
+    |.endif
+    |  ins_next
+    break;
+  case BC_USETP:
+    |  ins_AND	// RA = upvalue #, RD = primitive type (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  mov RA, UPVAL:RB->v
+    |  mov [RA+4], RD
+    |  ins_next
+    break;
+  case BC_UCLO:
+    |  ins_AD	// RA = level, RD = target
+    |  branchPC RD			// Do this first to free RD.
+    |  mov L:RB, SAVE_L
+    |  cmp dword L:RB->openupval, 0
+    |  je >1
+    |  mov L:RB->base, BASE
+    |  lea FCARG2, [BASE+RA*8]		// Caveat: FCARG2 == BASE
+    |  mov L:FCARG1, L:RB		// Caveat: FCARG1 == RA
+    |  call extern lj_func_closeuv@8	// (lua_State *L, TValue *level)
+    |  mov BASE, L:RB->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  ins_AND	// RA = dst, RD = proto const (~) (holding function prototype)
+    |.if X64
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+    |  mov CARG3d, [BASE-8]
+    |  mov CARG2d, [KBASE+RD*4]		// Fetch GCproto *.
+    |  mov CARG1d, L:RB
+    |.else
+    |  mov LFUNC:RA, [BASE-8]
+    |  mov PROTO:RD, [KBASE+RD*4]	// Fetch GCproto *.
+    |  mov L:RB, SAVE_L
+    |  mov ARG3, LFUNC:RA
+    |  mov ARG2, PROTO:RD
+    |  mov ARG1, L:RB
+    |  mov L:RB->base, BASE
+    |.endif
+    |  mov SAVE_PC, PC
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  call extern lj_func_newL_gc
+    |  // GCfuncL * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA
+    |  mov [BASE+RA*8], LFUNC:RC
+    |  mov dword [BASE+RA*8+4], LJ_TFUNC
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+    |  ins_AD	// RA = dst, RD = hbits|asize
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE
+    |  mov RA, [DISPATCH+DISPATCH_GL(gc.total)]
+    |  cmp RA, [DISPATCH+DISPATCH_GL(gc.threshold)]
+    |  mov SAVE_PC, PC
+    |  jae >5
+    |1:
+    |.if X64
+    |  mov CARG3d, RD
+    |  and RD, 0x7ff
+    |  shr CARG3d, 11
+    |.else
+    |  mov RA, RD
+    |  and RD, 0x7ff
+    |  shr RA, 11
+    |  mov ARG3, RA
+    |.endif
+    |  cmp RD, 0x7ff
+    |  je >3
+    |2:
+    |.if X64
+    |  mov L:CARG1d, L:RB
+    |  mov CARG2d, RD
+    |.else
+    |  mov ARG1, L:RB
+    |  mov ARG2, RD
+    |.endif
+    |  call extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+    |  // Table * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA
+    |  mov [BASE+RA*8], TAB:RC
+    |  mov dword [BASE+RA*8+4], LJ_TTAB
+    |  ins_next
+    |3:  // Turn 0x7ff into 0x801.
+    |  mov RD, 0x801
+    |  jmp <2
+    |5:
+    |  mov L:FCARG1, L:RB
+    |  call extern lj_gc_step_fixtop@4	// (lua_State *L)
+    |  movzx RD, PC_RD
+    |  jmp <1
+    break;
+  case BC_TDUP:
+    |  ins_AND	// RA = dst, RD = table const (~) (holding template table)
+    |  mov L:RB, SAVE_L
+    |  mov RA, [DISPATCH+DISPATCH_GL(gc.total)]
+    |  mov SAVE_PC, PC
+    |  cmp RA, [DISPATCH+DISPATCH_GL(gc.threshold)]
+    |  mov L:RB->base, BASE
+    |  jae >3
+    |2:
+    |  mov TAB:FCARG2, [KBASE+RD*4]	// Caveat: FCARG2 == BASE
+    |  mov L:FCARG1, L:RB		// Caveat: FCARG1 == RA
+    |  call extern lj_tab_dup@8		// (lua_State *L, Table *kt)
+    |  // Table * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA
+    |  mov [BASE+RA*8], TAB:RC
+    |  mov dword [BASE+RA*8+4], LJ_TTAB
+    |  ins_next
+    |3:
+    |  mov L:FCARG1, L:RB
+    |  call extern lj_gc_step_fixtop@4	// (lua_State *L)
+    |  movzx RD, PC_RD			// Need to reload RD.
+    |  not RDa
+    |  jmp <2
+    break;
+
+  case BC_GGET:
+    |  ins_AND	// RA = dst, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov TAB:RB, LFUNC:RB->env
+    |  mov STR:RC, [KBASE+RD*4]
+    |  jmp ->BC_TGETS_Z
+    break;
+  case BC_GSET:
+    |  ins_AND	// RA = src, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov TAB:RB, LFUNC:RB->env
+    |  mov STR:RC, [KBASE+RD*4]
+    |  jmp ->BC_TSETS_Z
+    break;
+
+  case BC_TGETV:
+    |  ins_ABC	// RA = dst, RB = table, RC = key
+    |  checktab RB, ->vmeta_tgetv
+    |  mov TAB:RB, [BASE+RB*8]
+    |
+    |  // Integer key?
+    |.if DUALNUM
+    |  checkint RC, >5
+    |  mov RC, dword [BASE+RC*8]
+    |.else
+    |  // Convert number to int and back and compare.
+    |  checknum RC, >5
+    |.if SSE
+    |  movsd xmm0, qword [BASE+RC*8]
+    |  cvtsd2si RC, xmm0
+    |  cvtsi2sd xmm1, RC
+    |  ucomisd xmm0, xmm1
+    |.else
+    |  fld qword [BASE+RC*8]
+    |  fist ARG1
+    |  fild ARG1
+    |  fcomparepp
+    |  mov RC, ARG1
+    |.endif
+    |  jne ->vmeta_tgetv		// Generic numeric key? Use fallback.
+    |.endif
+    |  cmp RC, TAB:RB->asize	// Takes care of unordered, too.
+    |  jae ->vmeta_tgetv		// Not in array part? Use fallback.
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL	// Avoid overwriting RB in fastpath.
+    |  je >2
+    |  // Get array slot.
+    |.if X64
+    |  mov RBa, [RC]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [RC]
+    |  mov RC, [RC+4]
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |.endif
+    |1:
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz >3
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_index
+    |  jz ->vmeta_tgetv			// 'no __index' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |3:
+    |  mov dword [BASE+RA*8+4], LJ_TNIL
+    |  jmp <1
+    |
+    |5:  // String key?
+    |  checkstr RC, ->vmeta_tgetv
+    |  mov STR:RC, [BASE+RC*8]
+    |  jmp ->BC_TGETS_Z
+    break;
+  case BC_TGETS:
+    |  ins_ABC	// RA = dst, RB = table, RC = str const (~)
+    |  not RCa
+    |  mov STR:RC, [KBASE+RC*4]
+    |  checktab RB, ->vmeta_tgets
+    |  mov TAB:RB, [BASE+RB*8]
+    |->BC_TGETS_Z:	// RB = GCtab *, RC = GCstr *, refetches PC_RA.
+    |  mov RA, TAB:RB->hmask
+    |  and RA, STR:RC->hash
+    |  imul RA, #NODE
+    |  add NODE:RA, TAB:RB->node
+    |1:
+    |  cmp dword NODE:RA->key.it, LJ_TSTR
+    |  jne >4
+    |  cmp dword NODE:RA->key.gcr, STR:RC
+    |  jne >4
+    |  // Ok, key found. Assumes: offsetof(Node, val) == 0
+    |  cmp dword [RA+4], LJ_TNIL	// Avoid overwriting RB in fastpath.
+    |  je >5				// Key found, but nil value?
+    |  movzx RC, PC_RA
+    |  // Get node value.
+    |.if X64
+    |  mov RBa, [RA]
+    |  mov [BASE+RC*8], RBa
+    |.else
+    |  mov RB, [RA]
+    |  mov RA, [RA+4]
+    |  mov [BASE+RC*8], RB
+    |  mov [BASE+RC*8+4], RA
+    |.endif
+    |2:
+    |  ins_next
+    |
+    |3:
+    |  movzx RC, PC_RA
+    |  mov dword [BASE+RC*8+4], LJ_TNIL
+    |  jmp <2
+    |
+    |4:  // Follow hash chain.
+    |  mov NODE:RA, NODE:RA->next
+    |  test NODE:RA, NODE:RA
+    |  jnz <1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test TAB:RA, TAB:RA
+    |  jz <3				// No metatable: done.
+    |  test byte TAB:RA->nomm, 1<<MM_index
+    |  jnz <3				// 'no __index' flag set: done.
+    |  jmp ->vmeta_tgets		// Caveat: preserve STR:RC.
+    break;
+  case BC_TGETB:
+    |  ins_ABC	// RA = dst, RB = table, RC = byte literal
+    |  checktab RB, ->vmeta_tgetb
+    |  mov TAB:RB, [BASE+RB*8]
+    |  cmp RC, TAB:RB->asize
+    |  jae ->vmeta_tgetb
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL	// Avoid overwriting RB in fastpath.
+    |  je >2
+    |  // Get array slot.
+    |.if X64
+    |  mov RBa, [RC]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [RC]
+    |  mov RC, [RC+4]
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |.endif
+    |1:
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz >3
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_index
+    |  jz ->vmeta_tgetb			// 'no __index' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |3:
+    |  mov dword [BASE+RA*8+4], LJ_TNIL
+    |  jmp <1
+    break;
+
+  case BC_TSETV:
+    |  ins_ABC	// RA = src, RB = table, RC = key
+    |  checktab RB, ->vmeta_tsetv
+    |  mov TAB:RB, [BASE+RB*8]
+    |
+    |  // Integer key?
+    |.if DUALNUM
+    |  checkint RC, >5
+    |  mov RC, dword [BASE+RC*8]
+    |.else
+    |  // Convert number to int and back and compare.
+    |  checknum RC, >5
+    |.if SSE
+    |  movsd xmm0, qword [BASE+RC*8]
+    |  cvtsd2si RC, xmm0
+    |  cvtsi2sd xmm1, RC
+    |  ucomisd xmm0, xmm1
+    |.else
+    |  fld qword [BASE+RC*8]
+    |  fist ARG1
+    |  fild ARG1
+    |  fcomparepp
+    |  mov RC, ARG1
+    |.endif
+    |  jne ->vmeta_tsetv		// Generic numeric key? Use fallback.
+    |.endif
+    |  cmp RC, TAB:RB->asize		// Takes care of unordered, too.
+    |  jae ->vmeta_tsetv
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL
+    |  je >3				// Previous value is nil?
+    |1:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:  // Set array slot.
+    |.if X64
+    |  mov RBa, [BASE+RA*8]
+    |  mov [RC], RBa
+    |.else
+    |  mov RB, [BASE+RA*8+4]
+    |  mov RA, [BASE+RA*8]
+    |  mov [RC+4], RB
+    |  mov [RC], RA
+    |.endif
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz <1
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsetv			// 'no __newindex' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <1
+    |
+    |5:  // String key?
+    |  checkstr RC, ->vmeta_tsetv
+    |  mov STR:RC, [BASE+RC*8]
+    |  jmp ->BC_TSETS_Z
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RA
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <2
+    break;
+  case BC_TSETS:
+    |  ins_ABC	// RA = src, RB = table, RC = str const (~)
+    |  not RCa
+    |  mov STR:RC, [KBASE+RC*4]
+    |  checktab RB, ->vmeta_tsets
+    |  mov TAB:RB, [BASE+RB*8]
+    |->BC_TSETS_Z:	// RB = GCtab *, RC = GCstr *, refetches PC_RA.
+    |  mov RA, TAB:RB->hmask
+    |  and RA, STR:RC->hash
+    |  imul RA, #NODE
+    |  mov byte TAB:RB->nomm, 0		// Clear metamethod cache.
+    |  add NODE:RA, TAB:RB->node
+    |1:
+    |  cmp dword NODE:RA->key.it, LJ_TSTR
+    |  jne >5
+    |  cmp dword NODE:RA->key.gcr, STR:RC
+    |  jne >5
+    |  // Ok, key found. Assumes: offsetof(Node, val) == 0
+    |  cmp dword [RA+4], LJ_TNIL
+    |  je >4				// Previous value is nil?
+    |2:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |3:  // Set node value.
+    |  movzx RC, PC_RA
+    |.if X64
+    |  mov RBa, [BASE+RC*8]
+    |  mov [RA], RBa
+    |.else
+    |  mov RB, [BASE+RC*8+4]
+    |  mov RC, [BASE+RC*8]
+    |  mov [RA+4], RB
+    |  mov [RA], RC
+    |.endif
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz <2
+    |  mov TMP1, RA			// Save RA.
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsets			// 'no __newindex' flag NOT set: check.
+    |  mov RA, TMP1			// Restore RA.
+    |  jmp <2
+    |
+    |5:  // Follow hash chain.
+    |  mov NODE:RA, NODE:RA->next
+    |  test NODE:RA, NODE:RA
+    |  jnz <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test TAB:RA, TAB:RA
+    |  jz >6				// No metatable: continue.
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsets			// 'no __newindex' flag NOT set: check.
+    |6:
+    |  mov TMP1, STR:RC
+    |  mov TMP2, LJ_TSTR
+    |  mov TMP3, TAB:RB			// Save TAB:RB for us.
+    |.if X64
+    |  mov L:CARG1d, SAVE_L
+    |  mov L:CARG1d->base, BASE
+    |  lea CARG3, TMP1
+    |  mov CARG2d, TAB:RB
+    |  mov L:RB, L:CARG1d
+    |.else
+    |  lea RC, TMP1			// Store temp. TValue in TMP1/TMP2.
+    |  mov ARG2, TAB:RB
+    |  mov L:RB, SAVE_L
+    |  mov ARG3, RC
+    |  mov ARG1, L:RB
+    |  mov L:RB->base, BASE
+    |.endif
+    |  mov SAVE_PC, PC
+    |  call extern lj_tab_newkey	// (lua_State *L, GCtab *t, TValue *k)
+    |  // Handles write barrier for the new key. TValue * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  mov TAB:RB, TMP3			// Need TAB:RB for barrier.
+    |  mov RA, eax
+    |  jmp <2				// Must check write barrier for value.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RC		// Destroys STR:RC.
+    |  jmp <3
+    break;
+  case BC_TSETB:
+    |  ins_ABC	// RA = src, RB = table, RC = byte literal
+    |  checktab RB, ->vmeta_tsetb
+    |  mov TAB:RB, [BASE+RB*8]
+    |  cmp RC, TAB:RB->asize
+    |  jae ->vmeta_tsetb
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL
+    |  je >3				// Previous value is nil?
+    |1:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:	 // Set array slot.
+    |.if X64
+    |  mov RAa, [BASE+RA*8]
+    |  mov [RC], RAa
+    |.else
+    |  mov RB, [BASE+RA*8+4]
+    |  mov RA, [BASE+RA*8]
+    |  mov [RC+4], RB
+    |  mov [RC], RA
+    |.endif
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz <1
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsetb			// 'no __newindex' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <1
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RA
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <2
+    break;
+
+  case BC_TSETM:
+    |  ins_AD	// RA = base (table at base-1), RD = num const (start index)
+    |  mov TMP1, KBASE			// Need one more free register.
+    |  mov KBASE, dword [KBASE+RD*8]	// Integer constant is in lo-word.
+    |1:
+    |  lea RA, [BASE+RA*8]
+    |  mov TAB:RB, [RA-8]		// Guaranteed to be a table.
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:
+    |  mov RD, MULTRES
+    |  sub RD, 1
+    |  jz >4				// Nothing to copy?
+    |  add RD, KBASE			// Compute needed size.
+    |  cmp RD, TAB:RB->asize
+    |  ja >5				// Doesn't fit into array part?
+    |  sub RD, KBASE
+    |  shl KBASE, 3
+    |  add KBASE, TAB:RB->array
+    |3:  // Copy result slots to table.
+    |.if X64
+    |  mov RBa, [RA]
+    |  add RA, 8
+    |  mov [KBASE], RBa
+    |.else
+    |  mov RB, [RA]
+    |  mov [KBASE], RB
+    |  mov RB, [RA+4]
+    |  add RA, 8
+    |  mov [KBASE+4], RB
+    |.endif
+    |  add KBASE, 8
+    |  sub RD, 1
+    |  jnz <3
+    |4:
+    |  mov KBASE, TMP1
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |.if X64
+    |  mov L:CARG1d, SAVE_L
+    |  mov L:CARG1d->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+    |  mov CARG2d, TAB:RB
+    |  mov CARG3d, RD
+    |  mov L:RB, L:CARG1d
+    |.else
+    |  mov ARG2, TAB:RB
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE
+    |  mov ARG3, RD
+    |  mov ARG1, L:RB
+    |.endif
+    |  mov SAVE_PC, PC
+    |  call extern lj_tab_reasize	// (lua_State *L, GCtab *t, int nasize)
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <1				// Retry.
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:RB, RD
+    |  jmp <2
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALL: case BC_CALLM:
+    |  ins_A_C	// RA = base, (RB = nresults+1,) RC = nargs+1 | extra_nargs
+    if (op == BC_CALLM) {
+      |  add NARGS:RD, MULTRES
+    }
+    |  cmp dword [BASE+RA*8+4], LJ_TFUNC
+    |  mov LFUNC:RB, [BASE+RA*8]
+    |  jne ->vmeta_call_ra
+    |  lea BASE, [BASE+RA*8+8]
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  ins_AD	// RA = base, RD = extra_nargs
+    |  add NARGS:RD, MULTRES
+    |  // Fall through. Assumes BC_CALLT follows and ins_AD is a no-op.
+    break;
+  case BC_CALLT:
+    |  ins_AD	// RA = base, RD = nargs+1
+    |  lea RA, [BASE+RA*8+8]
+    |  mov KBASE, BASE			// Use KBASE for move + vmeta_call hint.
+    |  mov LFUNC:RB, [RA-8]
+    |  cmp dword [RA-4], LJ_TFUNC
+    |  jne ->vmeta_call
+    |->BC_CALLT_Z:
+    |  mov PC, [BASE-4]
+    |  test PC, FRAME_TYPE
+    |  jnz >7
+    |1:
+    |  mov [BASE-8], LFUNC:RB		// Copy function down, reloaded below.
+    |  mov MULTRES, NARGS:RD
+    |  sub NARGS:RD, 1
+    |  jz >3
+    |2:  // Move args down.
+    |.if X64
+    |  mov RBa, [RA]
+    |  add RA, 8
+    |  mov [KBASE], RBa
+    |.else
+    |  mov RB, [RA]
+    |  mov [KBASE], RB
+    |  mov RB, [RA+4]
+    |  add RA, 8
+    |  mov [KBASE+4], RB
+    |.endif
+    |  add KBASE, 8
+    |  sub NARGS:RD, 1
+    |  jnz <2
+    |
+    |  mov LFUNC:RB, [BASE-8]
+    |3:
+    |  mov NARGS:RD, MULTRES
+    |  cmp byte LFUNC:RB->ffid, 1	// (> FF_C) Calling a fast function?
+    |  ja >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function.
+    |  test PC, FRAME_TYPE		// Lua frame below?
+    |  jnz <4
+    |  movzx RA, PC_RA
+    |  not RAa
+    |  lea RA, [BASE+RA*8]
+    |  mov LFUNC:KBASE, [RA-8]		// Need to prepare KBASE.
+    |  mov KBASE, LFUNC:KBASE->pc
+    |  mov KBASE, [KBASE+PC2PROTO(k)]
+    |  jmp <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  sub PC, FRAME_VARG
+    |  test PC, FRAME_TYPEP
+    |  jnz >8				// Vararg frame below?
+    |  sub BASE, PC			// Need to relocate BASE/KBASE down.
+    |  mov KBASE, BASE
+    |  mov PC, [BASE-4]
+    |  jmp <1
+    |8:
+    |  add PC, FRAME_VARG
+    |  jmp <1
+    break;
+
+  case BC_ITERC:
+    |  ins_A	// RA = base, (RB = nresults+1,) RC = nargs+1 (2+1)
+    |  lea RA, [BASE+RA*8+8]		// fb = base+1
+    |.if X64
+    |  mov RBa, [RA-24]			// Copy state. fb[0] = fb[-3].
+    |  mov RCa, [RA-16]			// Copy control var. fb[1] = fb[-2].
+    |  mov [RA], RBa
+    |  mov [RA+8], RCa
+    |.else
+    |  mov RB, [RA-24]			// Copy state. fb[0] = fb[-3].
+    |  mov RC, [RA-20]
+    |  mov [RA], RB
+    |  mov [RA+4], RC
+    |  mov RB, [RA-16]			// Copy control var. fb[1] = fb[-2].
+    |  mov RC, [RA-12]
+    |  mov [RA+8], RB
+    |  mov [RA+12], RC
+    |.endif
+    |  mov LFUNC:RB, [RA-32]		// Copy callable. fb[-1] = fb[-4]
+    |  mov RC, [RA-28]
+    |  mov [RA-8], LFUNC:RB
+    |  mov [RA-4], RC
+    |  cmp RC, LJ_TFUNC			// Handle like a regular 2-arg call.
+    |  mov NARGS:RD, 2+1
+    |  jne ->vmeta_call
+    |  mov BASE, RA
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |  ins_A	// RA = base, (RB = nresults+1, RC = nargs+1 (2+1))
+    |.if JIT
+    |  // NYI: add hotloop, record BC_ITERN.
+    |.endif
+    |  mov TMP1, KBASE			// Need two more free registers.
+    |  mov TMP2, DISPATCH
+    |  mov TAB:RB, [BASE+RA*8-16]
+    |  mov RC, [BASE+RA*8-8]		// Get index from control var.
+    |  mov DISPATCH, TAB:RB->asize
+    |  add PC, 4
+    |  mov KBASE, TAB:RB->array
+    |1:  // Traverse array part.
+    |  cmp RC, DISPATCH; jae >5		// Index points after array part?
+    |  cmp dword [KBASE+RC*8+4], LJ_TNIL; je >4
+    |.if DUALNUM
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RC
+    |.elif SSE
+    |  cvtsi2sd xmm0, RC
+    |.else
+    |  fild dword [BASE+RA*8-8]
+    |.endif
+    |  // Copy array slot to returned value.
+    |.if X64
+    |  mov RBa, [KBASE+RC*8]
+    |  mov [BASE+RA*8+8], RBa
+    |.else
+    |  mov RB, [KBASE+RC*8+4]
+    |  mov [BASE+RA*8+12], RB
+    |  mov RB, [KBASE+RC*8]
+    |  mov [BASE+RA*8+8], RB
+    |.endif
+    |  add RC, 1
+    |  // Return array index as a numeric key.
+    |.if DUALNUM
+    |  // See above.
+    |.elif SSE
+    |  movsd qword [BASE+RA*8], xmm0
+    |.else
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |  mov [BASE+RA*8-8], RC		// Update control var.
+    |2:
+    |  movzx RD, PC_RD			// Get target from ITERL.
+    |  branchPC RD
+    |3:
+    |  mov DISPATCH, TMP2
+    |  mov KBASE, TMP1
+    |  ins_next
+    |
+    |4:  // Skip holes in array part.
+    |  add RC, 1
+    |.if not (DUALNUM or SSE)
+    |  mov [BASE+RA*8-8], RC
+    |.endif
+    |  jmp <1
+    |
+    |5:  // Traverse hash part.
+    |  sub RC, DISPATCH
+    |6:
+    |  cmp RC, TAB:RB->hmask; ja <3	// End of iteration? Branch to ITERL+1.
+    |  imul KBASE, RC, #NODE
+    |  add NODE:KBASE, TAB:RB->node
+    |  cmp dword NODE:KBASE->val.it, LJ_TNIL; je >7
+    |  lea DISPATCH, [RC+DISPATCH+1]
+    |  // Copy key and value from hash slot.
+    |.if X64
+    |  mov RBa, NODE:KBASE->key
+    |  mov RCa, NODE:KBASE->val
+    |  mov [BASE+RA*8], RBa
+    |  mov [BASE+RA*8+8], RCa
+    |.else
+    |  mov RB, NODE:KBASE->key.gcr
+    |  mov RC, NODE:KBASE->key.it
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |  mov RB, NODE:KBASE->val.gcr
+    |  mov RC, NODE:KBASE->val.it
+    |  mov [BASE+RA*8+8], RB
+    |  mov [BASE+RA*8+12], RC
+    |.endif
+    |  mov [BASE+RA*8-8], DISPATCH
+    |  jmp <2
+    |
+    |7:  // Skip holes in hash part.
+    |  add RC, 1
+    |  jmp <6
+    break;
+
+  case BC_ISNEXT:
+    |  ins_AD	// RA = base, RD = target (points to ITERN)
+    |  cmp dword [BASE+RA*8-20], LJ_TFUNC; jne >5
+    |  mov CFUNC:RB, [BASE+RA*8-24]
+    |  cmp dword [BASE+RA*8-12], LJ_TTAB; jne >5
+    |  cmp dword [BASE+RA*8-4], LJ_TNIL; jne >5
+    |  cmp byte CFUNC:RB->ffid, FF_next_N; jne >5
+    |  branchPC RD
+    |  mov dword [BASE+RA*8-8], 0	// Initialize control var.
+    |  mov dword [BASE+RA*8-4], 0xfffe7fff
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  mov PC_OP, BC_JMP
+    |  branchPC RD
+    |  mov byte [PC], BC_ITERC
+    |  jmp <1
+    break;
+
+  case BC_VARG:
+    |  ins_ABC	// RA = base, RB = nresults+1, RC = numparams
+    |  mov TMP1, KBASE			// Need one more free register.
+    |  lea KBASE, [BASE+RC*8+(8+FRAME_VARG)]
+    |  lea RA, [BASE+RA*8]
+    |  sub KBASE, [BASE-4]
+    |  // Note: KBASE may now be even _above_ BASE if nargs was < numparams.
+    |  test RB, RB
+    |  jz >5				// Copy all varargs?
+    |  lea RB, [RA+RB*8-8]
+    |  cmp KBASE, BASE			// No vararg slots?
+    |  jnb >2
+    |1:  // Copy vararg slots to destination slots.
+    |.if X64
+    |  mov RCa, [KBASE-8]
+    |  add KBASE, 8
+    |  mov [RA], RCa
+    |.else
+    |  mov RC, [KBASE-8]
+    |  mov [RA], RC
+    |  mov RC, [KBASE-4]
+    |  add KBASE, 8
+    |  mov [RA+4], RC
+    |.endif
+    |  add RA, 8
+    |  cmp RA, RB			// All destination slots filled?
+    |  jnb >3
+    |  cmp KBASE, BASE			// No more vararg slots?
+    |  jb <1
+    |2:  // Fill up remainder with nil.
+    |  mov dword [RA+4], LJ_TNIL
+    |  add RA, 8
+    |  cmp RA, RB
+    |  jb <2
+    |3:
+    |  mov KBASE, TMP1
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  mov MULTRES, 1			// MULTRES = 0+1
+    |  mov RC, BASE
+    |  sub RC, KBASE
+    |  jbe <3				// No vararg slots?
+    |  mov RB, RC
+    |  shr RB, 3
+    |  add RB, 1
+    |  mov MULTRES, RB			// MULTRES = #varargs+1
+    |  mov L:RB, SAVE_L
+    |  add RC, RA
+    |  cmp RC, L:RB->maxstack
+    |  ja >7				// Need to grow stack?
+    |6:  // Copy all vararg slots.
+    |.if X64
+    |  mov RCa, [KBASE-8]
+    |  add KBASE, 8
+    |  mov [RA], RCa
+    |.else
+    |  mov RC, [KBASE-8]
+    |  mov [RA], RC
+    |  mov RC, [KBASE-4]
+    |  add KBASE, 8
+    |  mov [RA+4], RC
+    |.endif
+    |  add RA, 8
+    |  cmp KBASE, BASE			// No more vararg slots?
+    |  jb <6
+    |  jmp <3
+    |
+    |7:  // Grow stack for varargs.
+    |  mov L:RB->base, BASE
+    |  mov L:RB->top, RA
+    |  mov SAVE_PC, PC
+    |  sub KBASE, BASE			// Need delta, because BASE may change.
+    |  mov FCARG2, MULTRES
+    |  sub FCARG2, 1
+    |  mov FCARG1, L:RB
+    |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+    |  mov BASE, L:RB->base
+    |  mov RA, L:RB->top
+    |  add KBASE, BASE
+    |  jmp <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  ins_AD	// RA = results, RD = extra_nresults
+    |  add RD, MULTRES			// MULTRES >=1, so RD >=1.
+    |  // Fall through. Assumes BC_RET follows and ins_AD is a no-op.
+    break;
+
+  case BC_RET: case BC_RET0: case BC_RET1:
+    |  ins_AD	// RA = results, RD = nresults+1
+    if (op != BC_RET0) {
+      |  shl RA, 3
+    }
+    |1:
+    |  mov PC, [BASE-4]
+    |  mov MULTRES, RD			// Save nresults+1.
+    |  test PC, FRAME_TYPE		// Check frame type marker.
+    |  jnz >7				// Not returning to a fixarg Lua func?
+    switch (op) {
+    case BC_RET:
+      |->BC_RET_Z:
+      |  mov KBASE, BASE		// Use KBASE for result move.
+      |  sub RD, 1
+      |  jz >3
+      |2:  // Move results down.
+      |.if X64
+      |  mov RBa, [KBASE+RA]
+      |  mov [KBASE-8], RBa
+      |.else
+      |  mov RB, [KBASE+RA]
+      |  mov [KBASE-8], RB
+      |  mov RB, [KBASE+RA+4]
+      |  mov [KBASE-4], RB
+      |.endif
+      |  add KBASE, 8
+      |  sub RD, 1
+      |  jnz <2
+      |3:
+      |  mov RD, MULTRES		// Note: MULTRES may be >255.
+      |  movzx RB, PC_RB		// So cannot compare with RDL!
+      |5:
+      |  cmp RB, RD			// More results expected?
+      |  ja >6
+      break;
+    case BC_RET1:
+      |.if X64
+      |  mov RBa, [BASE+RA]
+      |  mov [BASE-8], RBa
+      |.else
+      |  mov RB, [BASE+RA+4]
+      |  mov [BASE-4], RB
+      |  mov RB, [BASE+RA]
+      |  mov [BASE-8], RB
+      |.endif
+      /* fallthrough */
+    case BC_RET0:
+      |5:
+      |  cmp PC_RB, RDL			// More results expected?
+      |  ja >6
+    default:
+      break;
+    }
+    |  movzx RA, PC_RA
+    |  not RAa				// Note: ~RA = -(RA+1)
+    |  lea BASE, [BASE+RA*8]		// base = base - (RA+1)*8
+    |  mov LFUNC:KBASE, [BASE-8]
+    |  mov KBASE, LFUNC:KBASE->pc
+    |  mov KBASE, [KBASE+PC2PROTO(k)]
+    |  ins_next
+    |
+    |6:  // Fill up results with nil.
+    if (op == BC_RET) {
+      |  mov dword [KBASE-4], LJ_TNIL	// Note: relies on shifted base.
+      |  add KBASE, 8
+    } else {
+      |  mov dword [BASE+RD*8-12], LJ_TNIL
+    }
+    |  add RD, 1
+    |  jmp <5
+    |
+    |7:  // Non-standard return case.
+    |  lea RB, [PC-FRAME_VARG]
+    |  test RB, FRAME_TYPEP
+    |  jnz ->vm_return
+    |  // Return from vararg function: relocate BASE down and RA up.
+    |  sub BASE, RB
+    if (op != BC_RET0) {
+      |  add RA, RB
+    }
+    |  jmp <1
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  |.define FOR_IDX,  [RA];    .define FOR_TIDX,  dword [RA+4]
+  |.define FOR_STOP, [RA+8];  .define FOR_TSTOP, dword [RA+12]
+  |.define FOR_STEP, [RA+16]; .define FOR_TSTEP, dword [RA+20]
+  |.define FOR_EXT,  [RA+24]; .define FOR_TEXT,  dword [RA+28]
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop RB
+    |.endif
+    | // Fall through. Assumes BC_IFORL follows and ins_AJ is a no-op.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  ins_AJ	// RA = base, RD = target (after end of loop or start of loop)
+    |  lea RA, [BASE+RA*8]
+    if (LJ_DUALNUM) {
+      |  cmp FOR_TIDX, LJ_TISNUM; jne >9
+      if (!vk) {
+	|  cmp FOR_TSTOP, LJ_TISNUM; jne ->vmeta_for
+	|  cmp FOR_TSTEP, LJ_TISNUM; jne ->vmeta_for
+	|  mov RB, dword FOR_IDX
+	|  cmp dword FOR_STEP, 0; jl >5
+      } else {
+#ifdef LUA_USE_ASSERT
+	|  cmp FOR_TSTOP, LJ_TISNUM; jne ->assert_bad_for_arg_type
+	|  cmp FOR_TSTEP, LJ_TISNUM; jne ->assert_bad_for_arg_type
+#endif
+	|  mov RB, dword FOR_STEP
+	|  test RB, RB; js >5
+	|  add RB, dword FOR_IDX; jo >1
+	|  mov dword FOR_IDX, RB
+      }
+      |  cmp RB, dword FOR_STOP
+      |  mov FOR_TEXT, LJ_TISNUM
+      |  mov dword FOR_EXT, RB
+      if (op == BC_FORI) {
+	|  jle >7
+	|1:
+	|6:
+	|  branchPC RD
+      } else if (op == BC_JFORI) {
+	|  branchPC RD
+	|  movzx RD, PC_RD
+	|  jle =>BC_JLOOP
+	|1:
+	|6:
+      } else if (op == BC_IFORL) {
+	|  jg >7
+	|6:
+	|  branchPC RD
+	|1:
+      } else {
+	|  jle =>BC_JLOOP
+	|1:
+	|6:
+      }
+      |7:
+      |  ins_next
+      |
+      |5:  // Invert check for negative step.
+      if (vk) {
+	|  add RB, dword FOR_IDX; jo <1
+	|  mov dword FOR_IDX, RB
+      }
+      |  cmp RB, dword FOR_STOP
+      |  mov FOR_TEXT, LJ_TISNUM
+      |  mov dword FOR_EXT, RB
+      if (op == BC_FORI) {
+	|  jge <7
+      } else if (op == BC_JFORI) {
+	|  branchPC RD
+	|  movzx RD, PC_RD
+	|  jge =>BC_JLOOP
+      } else if (op == BC_IFORL) {
+	|  jl <7
+      } else {
+	|  jge =>BC_JLOOP
+      }
+      |  jmp <6
+      |9:  // Fallback to FP variant.
+    } else if (!vk) {
+      |  cmp FOR_TIDX, LJ_TISNUM
+    }
+    if (!vk) {
+      |  jae ->vmeta_for
+      |  cmp FOR_TSTOP, LJ_TISNUM; jae ->vmeta_for
+    } else {
+#ifdef LUA_USE_ASSERT
+      |  cmp FOR_TSTOP, LJ_TISNUM; jae ->assert_bad_for_arg_type
+      |  cmp FOR_TSTEP, LJ_TISNUM; jae ->assert_bad_for_arg_type
+#endif
+    }
+    |  mov RB, FOR_TSTEP		// Load type/hiword of for step.
+    if (!vk) {
+      |  cmp RB, LJ_TISNUM; jae ->vmeta_for
+    }
+    |.if SSE
+    |  movsd xmm0, qword FOR_IDX
+    |  movsd xmm1, qword FOR_STOP
+    if (vk) {
+      |  addsd xmm0, qword FOR_STEP
+      |  movsd qword FOR_IDX, xmm0
+      |  test RB, RB; js >3
+    } else {
+      |  jl >3
+    }
+    |  ucomisd xmm1, xmm0
+    |1:
+    |  movsd qword FOR_EXT, xmm0
+    |.else
+    |  fld qword FOR_STOP
+    |  fld qword FOR_IDX
+    if (vk) {
+      |  fadd qword FOR_STEP		// nidx = idx + step
+      |  fst qword FOR_IDX
+      |  fst qword FOR_EXT
+      |  test RB, RB; js >1
+    } else {
+      |  fst qword FOR_EXT
+      |  jl >1
+    }
+    |  fxch				// Swap lim/(n)idx if step non-negative.
+    |1:
+    |  fcomparepp
+    |.endif
+    if (op == BC_FORI) {
+      |.if DUALNUM
+      |  jnb <7
+      |.else
+      |  jnb >2
+      |  branchPC RD
+      |.endif
+    } else if (op == BC_JFORI) {
+      |  branchPC RD
+      |  movzx RD, PC_RD
+      |  jnb =>BC_JLOOP
+    } else if (op == BC_IFORL) {
+      |.if DUALNUM
+      |  jb <7
+      |.else
+      |  jb >2
+      |  branchPC RD
+      |.endif
+    } else {
+      |  jnb =>BC_JLOOP
+    }
+    |.if DUALNUM
+    |  jmp <6
+    |.else
+    |2:
+    |  ins_next
+    |.endif
+    |.if SSE
+    |3:  // Invert comparison if step is negative.
+    |  ucomisd xmm0, xmm1
+    |  jmp <1
+    |.endif
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop RB
+    |.endif
+    | // Fall through. Assumes BC_IITERL follows and ins_AJ is a no-op.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  ins_AJ	// RA = base, RD = target
+    |  lea RA, [BASE+RA*8]
+    |  mov RB, [RA+4]
+    |  cmp RB, LJ_TNIL; je >1		// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  mov [RA-4], RB
+      |  mov RB, [RA]
+      |  mov [RA-8], RB
+      |  jmp =>BC_JLOOP
+    } else {
+      |  branchPC RD			// Otherwise save control var + branch.
+      |  mov RD, [RA]
+      |  mov [RA-4], RB
+      |  mov [RA-8], RD
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  ins_A	// RA = base, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+  |.if JIT
+    |  hotloop RB
+    |.endif
+    | // Fall through. Assumes BC_ILOOP follows and ins_A is a no-op.
+    break;
+
+  case BC_ILOOP:
+    |  ins_A	// RA = base, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  ins_AD	// RA = base (ignored), RD = traceno
+    |  mov RA, [DISPATCH+DISPATCH_J(trace)]
+    |  mov TRACE:RD, [RA+RD*4]
+    |  mov RDa, TRACE:RD->mcode
+    |  mov L:RB, SAVE_L
+    |  mov [DISPATCH+DISPATCH_GL(jit_base)], BASE
+    |  mov [DISPATCH+DISPATCH_GL(jit_L)], L:RB
+    |  // Save additional callee-save registers only used in compiled code.
+    |.if X64WIN
+    |  mov TMPQ, r12
+    |  mov TMPa, r13
+    |  mov CSAVE_4, r14
+    |  mov CSAVE_3, r15
+    |  mov RAa, rsp
+    |  sub rsp, 9*16+4*8
+    |  movdqa [RAa], xmm6
+    |  movdqa [RAa-1*16], xmm7
+    |  movdqa [RAa-2*16], xmm8
+    |  movdqa [RAa-3*16], xmm9
+    |  movdqa [RAa-4*16], xmm10
+    |  movdqa [RAa-5*16], xmm11
+    |  movdqa [RAa-6*16], xmm12
+    |  movdqa [RAa-7*16], xmm13
+    |  movdqa [RAa-8*16], xmm14
+    |  movdqa [RAa-9*16], xmm15
+    |.elif X64
+    |  mov TMPQ, r12
+    |  mov TMPa, r13
+    |  sub rsp, 16
+    |.endif
+    |  jmp RDa
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  ins_AJ	// RA = unused, RD = target
+    |  branchPC RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+   /*
+   ** Reminder: A function may be called with func/args above L->maxstack,
+   ** i.e. occupying EXTRA_STACK slots. And vmeta_call may add one extra slot,
+   ** too. This means all FUNC* ops (including fast functions) must check
+   ** for stack overflow _before_ adding more slots!
+   */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall RB
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    | // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow and ins_AD is a no-op.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  ins_AD  // BASE = new base, RA = framesize, RD = nargs+1
+    |  mov KBASE, [PC-4+PC2PROTO(k)]
+    |  mov L:RB, SAVE_L
+    |  lea RA, [BASE+RA*8]		// Top of frame.
+    |  cmp RA, L:RB->maxstack
+    |  ja ->vm_growstack_f
+    |  movzx RA, byte [PC-4+PC2PROTO(numparams)]
+    |  cmp NARGS:RD, RA			// Check for missing parameters.
+    |  jbe >3
+    |2:
+    if (op == BC_JFUNCF) {
+      |  movzx RD, PC_RD
+      |  jmp =>BC_JLOOP
+    } else {
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  mov dword [BASE+NARGS:RD*8-4], LJ_TNIL
+    |  add NARGS:RD, 1
+    |  cmp NARGS:RD, RA
+    |  jbe <3
+    |  jmp <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    | int3  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  ins_AD  // BASE = new base, RA = framesize, RD = nargs+1
+    |  lea RB, [NARGS:RD*8+FRAME_VARG]
+    |  lea RD, [BASE+NARGS:RD*8]
+    |  mov LFUNC:KBASE, [BASE-8]
+    |  mov [RD-4], RB			// Store delta + FRAME_VARG.
+    |  mov [RD-8], LFUNC:KBASE		// Store copy of LFUNC.
+    |  mov L:RB, SAVE_L
+    |  lea RA, [RD+RA*8]
+    |  cmp RA, L:RB->maxstack
+    |  ja ->vm_growstack_v		// Need to grow stack.
+    |  mov RA, BASE
+    |  mov BASE, RD
+    |  movzx RB, byte [PC-4+PC2PROTO(numparams)]
+    |  test RB, RB
+    |  jz >2
+    |1:  // Copy fixarg slots up to new frame.
+    |  add RA, 8
+    |  cmp RA, BASE
+    |  jnb >3				// Less args than parameters?
+    |  mov KBASE, [RA-8]
+    |  mov [RD], KBASE
+    |  mov KBASE, [RA-4]
+    |  mov [RD+4], KBASE
+    |  add RD, 8
+    |  mov dword [RA-4], LJ_TNIL	// Clear old fixarg slot (help the GC).
+    |  sub RB, 1
+    |  jnz <1
+    |2:
+    if (op == BC_JFUNCV) {
+      |  movzx RD, PC_RD
+      |  jmp =>BC_JLOOP
+    } else {
+      |  mov KBASE, [PC-4+PC2PROTO(k)]
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  mov dword [RD+4], LJ_TNIL
+    |  add RD, 8
+    |  sub RB, 1
+    |  jnz <3
+    |  jmp <2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  ins_AD  // BASE = new base, RA = ins RA|RD (unused), RD = nargs+1
+    |  mov CFUNC:RB, [BASE-8]
+    |  mov KBASEa, CFUNC:RB->f
+    |  mov L:RB, SAVE_L
+    |  lea RD, [BASE+NARGS:RD*8-8]
+    |  mov L:RB->base, BASE
+    |  lea RA, [RD+8*LUA_MINSTACK]
+    |  cmp RA, L:RB->maxstack
+    |  mov L:RB->top, RD
+    if (op == BC_FUNCC) {
+      |.if X64
+      |  mov CARG1d, L:RB			// Caveat: CARG1d may be RA.
+      |.else
+      |  mov ARG1, L:RB
+      |.endif
+    } else {
+      |.if X64
+      |  mov CARG2, KBASEa
+      |  mov CARG1d, L:RB			// Caveat: CARG1d may be RA.
+      |.else
+      |  mov ARG2, KBASEa
+      |  mov ARG1, L:RB
+      |.endif
+    }
+    |  ja ->vm_growstack_c		// Need to grow stack.
+    |  set_vmstate C
+    if (op == BC_FUNCC) {
+      |  call KBASEa			// (lua_State *L)
+    } else {
+      |  // (lua_State *L, lua_CFunction f)
+      |  call aword [DISPATCH+DISPATCH_GL(wrapf)]
+    }
+    |  set_vmstate INTERP
+    |  // nresults returned in eax (RD).
+    |  mov BASE, L:RB->base
+    |  lea RA, [BASE+RD*8]
+    |  neg RA
+    |  add RA, L:RB->top		// RA = (L->top-(L->base+nresults))*8
+    |  mov PC, [BASE-4]			// Fetch PC of caller.
+    |  jmp ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+  dasm_growpc(Dst, BC__MAX);
+  build_subroutines(ctx);
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+#if LJ_64
+#define SZPTR	"8"
+#define BSZPTR	"3"
+#define REG_SP	"0x7"
+#define REG_RA	"0x10"
+#else
+#define SZPTR	"4"
+#define BSZPTR	"2"
+#define REG_SP	"0x4"
+#define REG_RA	"0x8"
+#endif
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.byte 0xc\n\t.uleb128 " REG_SP "\n\t.uleb128 " SZPTR "\n"
+	"\t.byte 0x80+" REG_RA "\n\t.uleb128 0x1\n"
+	"\t.align " SZPTR "\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+#if LJ_64
+	"\t.quad .Lbegin\n"
+	"\t.quad %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.byte 0x8f\n\t.uleb128 0x4\n"	/* offset r15 */
+	"\t.byte 0x8e\n\t.uleb128 0x5\n"	/* offset r14 */
+#else
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0x87\n\t.uleb128 0x3\n"	/* offset edi */
+	"\t.byte 0x86\n\t.uleb128 0x4\n"	/* offset esi */
+	"\t.byte 0x83\n\t.uleb128 0x5\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE0:\n\n", fcofs, CFRAME_SIZE);
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+#if LJ_64
+	"\t.quad lj_vm_ffi_call\n"
+	"\t.quad %d\n"
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0xd\n\t.uleb128 0x6\n"		/* def_cfa_register rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+#else
+	"\t.long lj_vm_ffi_call\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 8\n"		/* def_cfa_offset */
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0xd\n\t.uleb128 0x5\n"		/* def_cfa_register ebp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if (defined(__sun__) && defined(__svr4__))
+#if LJ_64
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@unwind\n");
+#else
+    fprintf(ctx->fp, "\t.section .eh_frame,\"aw\",@progbits\n");
+#endif
+#else
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
+#endif
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 " REG_SP "\n\t.uleb128 " SZPTR "\n"
+	"\t.byte 0x80+" REG_RA "\n\t.uleb128 0x1\n"
+	"\t.align " SZPTR "\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.long .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.long .LASFDE2-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+#if LJ_64
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.byte 0x8f\n\t.uleb128 0x4\n"	/* offset r15 */
+	"\t.byte 0x8e\n\t.uleb128 0x5\n"	/* offset r14 */
+#else
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0x87\n\t.uleb128 0x3\n"	/* offset edi */
+	"\t.byte 0x86\n\t.uleb128 0x4\n"	/* offset esi */
+	"\t.byte 0x83\n\t.uleb128 0x5\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE2:\n\n", fcofs, CFRAME_SIZE);
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.long .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 " REG_SP "\n\t.uleb128 " SZPTR "\n"
+	"\t.byte 0x80+" REG_RA "\n\t.uleb128 0x1\n"
+	"\t.align " SZPTR "\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.long .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.long .LASFDE3-.Lframe2\n"
+	"\t.long lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+#if LJ_64
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0xd\n\t.uleb128 0x6\n"		/* def_cfa_register rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+#else
+	"\t.byte 0xe\n\t.uleb128 8\n"		/* def_cfa_offset */
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0xd\n\t.uleb128 0x5\n"		/* def_cfa_register ebp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+    break;
+  /* Mental note: never let Apple design an assembler.
+  ** Or a linker. Or a plastic case. But I digress.
+  */
+  case BUILD_machasm: {
+#if LJ_HASFFI
+    int fcsize = 0;
+#endif
+    int i;
+    fprintf(ctx->fp, "\t.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support\n");
+    fprintf(ctx->fp,
+	"EH_frame1:\n"
+	"\t.set L$set$x,LECIEX-LSCIEX\n"
+	"\t.long L$set$x\n"
+	"LSCIEX:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.ascii \"zPR\\0\"\n"
+	"\t.byte 0x1\n"
+	"\t.byte 128-" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.byte 6\n"				/* augmentation length */
+	"\t.byte 0x9b\n"			/* indirect|pcrel|sdata4 */
+#if LJ_64
+	"\t.long _lj_err_unwind_dwarf+4@GOTPCREL\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.byte " REG_SP "\n\t.byte " SZPTR "\n"
+#else
+	"\t.long L_lj_err_unwind_dwarf$non_lazy_ptr-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.byte 0x5\n\t.byte 0x4\n"  /* esp=5 on 32 bit MACH-O. */
+#endif
+	"\t.byte 0x80+" REG_RA "\n\t.byte 0x1\n"
+	"\t.align " BSZPTR "\n"
+	"LECIEX:\n\n");
+    for (i = 0; i < ctx->nsym; i++) {
+      const char *name = ctx->sym[i].name;
+      int32_t size = ctx->sym[i+1].ofs - ctx->sym[i].ofs;
+      if (size == 0) continue;
+#if LJ_HASFFI
+      if (!strcmp(name, "_lj_vm_ffi_call")) { fcsize = size; continue; }
+#endif
+      fprintf(ctx->fp,
+	  "%s.eh:\n"
+	  "LSFDE%d:\n"
+	  "\t.set L$set$%d,LEFDE%d-LASFDE%d\n"
+	  "\t.long L$set$%d\n"
+	  "LASFDE%d:\n"
+	  "\t.long LASFDE%d-EH_frame1\n"
+	  "\t.long %s-.\n"
+	  "\t.long %d\n"
+	  "\t.byte 0\n"				/* augmentation length */
+	  "\t.byte 0xe\n\t.byte %d\n"		/* def_cfa_offset */
+#if LJ_64
+	  "\t.byte 0x86\n\t.byte 0x2\n"		/* offset rbp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset rbx */
+	  "\t.byte 0x8f\n\t.byte 0x4\n"		/* offset r15 */
+	  "\t.byte 0x8e\n\t.byte 0x5\n"		/* offset r14 */
+#else
+	  "\t.byte 0x84\n\t.byte 0x2\n"		/* offset ebp (4 for MACH-O)*/
+	  "\t.byte 0x87\n\t.byte 0x3\n"		/* offset edi */
+	  "\t.byte 0x86\n\t.byte 0x4\n"		/* offset esi */
+	  "\t.byte 0x83\n\t.byte 0x5\n"		/* offset ebx */
+#endif
+	  "\t.align " BSZPTR "\n"
+	  "LEFDE%d:\n\n",
+	  name, i, i, i, i, i, i, i, name, size, CFRAME_SIZE, i);
+    }
+#if LJ_HASFFI
+    if (fcsize) {
+      fprintf(ctx->fp,
+	  "EH_frame2:\n"
+	  "\t.set L$set$y,LECIEY-LSCIEY\n"
+	  "\t.long L$set$y\n"
+	  "LSCIEY:\n"
+	  "\t.long 0\n"
+	  "\t.byte 0x1\n"
+	  "\t.ascii \"zR\\0\"\n"
+	  "\t.byte 0x1\n"
+	  "\t.byte 128-" SZPTR "\n"
+	  "\t.byte " REG_RA "\n"
+	  "\t.byte 1\n"				/* augmentation length */
+#if LJ_64
+	  "\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	  "\t.byte 0xc\n\t.byte " REG_SP "\n\t.byte " SZPTR "\n"
+#else
+	  "\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	  "\t.byte 0xc\n\t.byte 0x5\n\t.byte 0x4\n"  /* esp=5 on 32 bit MACH. */
+#endif
+	  "\t.byte 0x80+" REG_RA "\n\t.byte 0x1\n"
+	  "\t.align " BSZPTR "\n"
+	  "LECIEY:\n\n");
+      fprintf(ctx->fp,
+	  "_lj_vm_ffi_call.eh:\n"
+	  "LSFDEY:\n"
+	  "\t.set L$set$yy,LEFDEY-LASFDEY\n"
+	  "\t.long L$set$yy\n"
+	  "LASFDEY:\n"
+	  "\t.long LASFDEY-EH_frame2\n"
+	  "\t.long _lj_vm_ffi_call-.\n"
+	  "\t.long %d\n"
+	  "\t.byte 0\n"				/* augmentation length */
+#if LJ_64
+	  "\t.byte 0xe\n\t.byte 16\n"		/* def_cfa_offset */
+	  "\t.byte 0x86\n\t.byte 0x2\n"		/* offset rbp */
+	  "\t.byte 0xd\n\t.byte 0x6\n"		/* def_cfa_register rbp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset rbx */
+#else
+	  "\t.byte 0xe\n\t.byte 8\n"		/* def_cfa_offset */
+	  "\t.byte 0x84\n\t.byte 0x2\n"		/* offset ebp (4 for MACH-O)*/
+	  "\t.byte 0xd\n\t.byte 0x4\n"		/* def_cfa_register ebp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset ebx */
+#endif
+	  "\t.align " BSZPTR "\n"
+	  "LEFDEY:\n\n", fcsize);
+    }
+#endif
+#if LJ_64
+    fprintf(ctx->fp, "\t.subsections_via_symbols\n");
+#else
+    fprintf(ctx->fp,
+      "\t.non_lazy_symbol_pointer\n"
+      "L_lj_err_unwind_dwarf$non_lazy_ptr:\n"
+      ".indirect_symbol _lj_err_unwind_dwarf\n"
+      ".long 0\n");
+#endif
+    }
+    break;
+  default:  /* Difficult for other modes. */
+    break;
+  }
+}
+
diff --git a/lib/luajit/src/xedkbuild.bat b/lib/luajit/src/xedkbuild.bat
new file mode 100644
index 00000000..240ec878
--- /dev/null
+++ b/lib/luajit/src/xedkbuild.bat
@@ -0,0 +1,92 @@
+@rem Script to build LuaJIT with the Xbox 360 SDK.
+@rem Donated to the public domain.
+@rem
+@rem Open a "Visual Studio .NET Command Prompt" (32 bit host compiler)
+@rem Then cd to this directory and run this script.
+
+@if not defined INCLUDE goto :FAIL
+@if not defined XEDK goto :FAIL
+
+@setlocal
+@rem ---- Host compiler ----
+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE
+@set LJLINK=link /nologo
+@set LJMT=mt /nologo
+@set DASMDIR=..\dynasm
+@set DASM=%DASMDIR%\dynasm.lua
+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c
+
+%LJCOMPILE% host\minilua.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:minilua.exe minilua.obj
+@if errorlevel 1 goto :BAD
+if exist minilua.exe.manifest^
+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe
+
+@rem Error out for 64 bit host compiler
+@minilua
+@if errorlevel 8 goto :FAIL
+
+@set DASMFLAGS=-D GPR64 -D FRAME32 -D PPE -D SQRT -D DUALNUM
+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_ppc.dasc
+@if errorlevel 1 goto :BAD
+
+%LJCOMPILE% /I "." /I %DASMDIR% /D_XBOX_VER=200 /DLUAJIT_TARGET=LUAJIT_ARCH_PPC  host\buildvm*.c
+@if errorlevel 1 goto :BAD
+%LJLINK% /out:buildvm.exe buildvm*.obj
+@if errorlevel 1 goto :BAD
+if exist buildvm.exe.manifest^
+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe
+
+buildvm -m peobj -o lj_vm.obj
+@if errorlevel 1 goto :BAD
+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m libdef -o lj_libdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m recdef -o lj_recdef.h %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%
+@if errorlevel 1 goto :BAD
+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c
+@if errorlevel 1 goto :BAD
+
+@rem ---- Cross compiler ----
+@set LJCOMPILE="%XEDK%\bin\win32\cl" /nologo /c /MT /O2 /W3 /GF /Gm- /GR- /GS- /Gy /openmp- /D_CRT_SECURE_NO_DEPRECATE /DNDEBUG /D_XBOX /D_LIB /DLUAJIT_USE_SYSMALLOC
+@set LJLIB="%XEDK%\bin\win32\lib" /nologo
+@set "INCLUDE=%XEDK%\include\xbox"
+
+@if "%1" neq "debug" goto :NODEBUG
+@shift
+@set "LJCOMPILE=%LJCOMPILE% /Zi"
+:NODEBUG
+@if "%1"=="amalg" goto :AMALG
+%LJCOMPILE% /DLUA_BUILD_AS_DLL lj_*.c lib_*.c
+@if errorlevel 1 goto :BAD
+%LJLIB% /OUT:luajit20.lib lj_*.obj lib_*.obj
+@if errorlevel 1 goto :BAD
+@goto :NOAMALG
+:AMALG
+%LJCOMPILE% /DLUA_BUILD_AS_DLL ljamalg.c
+@if errorlevel 1 goto :BAD
+%LJLIB% /OUT:luajit20.lib ljamalg.obj lj_vm.obj
+@if errorlevel 1 goto :BAD
+:NOAMALG
+
+@del *.obj *.manifest minilua.exe buildvm.exe
+@echo.
+@echo === Successfully built LuaJIT for Xbox 360 ===
+
+@goto :END
+:BAD
+@echo.
+@echo *******************************************************
+@echo *** Build FAILED -- Please check the error messages ***
+@echo *******************************************************
+@goto :END
+:FAIL
+@echo To run this script you must open a "Visual Studio .NET Command Prompt"
+@echo (32 bit host compiler). The Xbox 360 SDK must be installed, too.
+:END
diff --git a/lib/perl/MANIFEST b/lib/perl/MANIFEST
new file mode 100644
index 00000000..51aeb642
--- /dev/null
+++ b/lib/perl/MANIFEST
@@ -0,0 +1,9 @@
+Makefile.PL
+README
+examples/forw_proxy_conf.pl
+MANIFEST
+t/Apache-TS-AdminClient.t
+lib/Apache/TS.pm
+lib/Apache/TS/Config/Records.pm
+lib/Apache/TS/AdminClient.pm
+lib/Apache/TS/Config.pm
diff --git a/lib/perl/Makefile.PL b/lib/perl/Makefile.PL
new file mode 100644
index 00000000..eda04154
--- /dev/null
+++ b/lib/perl/Makefile.PL
@@ -0,0 +1,29 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require 5.006;
+use ExtUtils::MakeMaker;
+# See lib/ExtUtils/MakeMaker.pm for details of how to influence
+# the contents of the Makefile that is written.
+WriteMakefile(
+    NAME              => 'Apache::TS',
+    VERSION_FROM      => 'lib/Apache/TS.pm', # finds $VERSION
+    PREREQ_PM         => {}, # e.g., Module::Name => 1.1
+    FIRST_MAKEFILE    => 'Makefile-pl',
+    ($] >= 5.005 ?     ## Add these new keywords supported since 5.005
+      (ABSTRACT_FROM  => 'lib/Apache/TS.pm', # retrieve abstract from module
+       AUTHOR         => 'Traffic Server Dev Team <dev@trafficserver.apache.org>') : ()),
+);
diff --git a/lib/perl/Makefile.am b/lib/perl/Makefile.am
new file mode 100644
index 00000000..bfba2af6
--- /dev/null
+++ b/lib/perl/Makefile.am
@@ -0,0 +1,37 @@
+# lib Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+all-local: Makefile-pl
+	$(MAKE) -f Makefile-pl INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix) DESTDIR=$(DESTDIR)
+
+install-exec-local: Makefile-pl
+	$(MAKE) -f Makefile-pl INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix) DESTDIR=$(DESTDIR) install
+
+# The perl build needs to have the source files in the current working directory, so we need to
+# copy them to the build directory if we are building out of tree.
+Makefile-pl: Makefile.PL
+	test -f "$(top_builddir)/$(subdir)/Makefile.PL" || cp -rf "$(srcdir)/." "$(top_builddir)/$(subdir)/"
+	$(PERL) Makefile.PL INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix)
+
+distclean-local:
+	-rm -rf Makefile-pl MYMETA.* blip
+
+#test: check
+
+#check-local: Makefile-pl
+#	$(MAKE) -f Makefile-pl INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix) DESTDIR=$(DESTDIR) test
diff --git a/lib/perl/Makefile.in b/lib/perl/Makefile.in
new file mode 100644
index 00000000..716118aa
--- /dev/null
+++ b/lib/perl/Makefile.in
@@ -0,0 +1,707 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# lib Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/perl/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/perl/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile all-local
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-local
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-exec-local
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am all-local check check-am clean clean-generic \
+	clean-libtool cscopelist-am ctags-am distclean \
+	distclean-generic distclean-libtool distclean-local distdir \
+	dvi dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-exec-local install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags-am uninstall uninstall-am
+
+
+all-local: Makefile-pl
+	$(MAKE) -f Makefile-pl INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix) DESTDIR=$(DESTDIR)
+
+install-exec-local: Makefile-pl
+	$(MAKE) -f Makefile-pl INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix) DESTDIR=$(DESTDIR) install
+
+# The perl build needs to have the source files in the current working directory, so we need to
+# copy them to the build directory if we are building out of tree.
+Makefile-pl: Makefile.PL
+	test -f "$(top_builddir)/$(subdir)/Makefile.PL" || cp -rf "$(srcdir)/." "$(top_builddir)/$(subdir)/"
+	$(PERL) Makefile.PL INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix)
+
+distclean-local:
+	-rm -rf Makefile-pl MYMETA.* blip
+
+#test: check
+
+#check-local: Makefile-pl
+#	$(MAKE) -f Makefile-pl INSTALLDIRS=$(INSTALLDIRS) PREFIX=$(prefix) DESTDIR=$(DESTDIR) test
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/perl/README b/lib/perl/README
new file mode 100644
index 00000000..88b029cc
--- /dev/null
+++ b/lib/perl/README
@@ -0,0 +1,51 @@
+Apache-TS version 3.4.0
+==================================
+
+Apache::TS - a set of perl interfaces to manage an Apache Traffic Server
+             instance. This includes the following sub-modules
+
+    Apache::TS::AdminClient - access the statistics and configuration
+     			      settings stored within Apache Traffic Server
+
+    Apache::TS::Config - Manage Apache Traffic Server configs
+
+    Apache::TS::Config::Records - Manage records.config settings.
+
+
+INSTALLATION
+==================================
+
+To install this module type the following:
+
+   perl Makefile.PL
+   make
+   make test
+   make install
+
+
+DEPENDENCIES
+==================================
+IO::Socket::UNIX
+IO::Select
+Carp;
+
+Additionally this module requires that Apache Traffic Server is 
+running on localhost so it has something to talk to.  
+
+COPYRIGHT AND LICENSE
+==================================
+
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to You under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/lib/perl/examples/forw_proxy_conf.pl b/lib/perl/examples/forw_proxy_conf.pl
new file mode 100755
index 00000000..9cdd79cd
--- /dev/null
+++ b/lib/perl/examples/forw_proxy_conf.pl
@@ -0,0 +1,41 @@
+#!/usr/bin/perl
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+use Apache::TS::Config::Records;
+
+
+############################################################################
+# Simple script, to show some minimum configuration changes typical for
+# a forward proxy.
+my $fn = $ARGV[0] || "/usr/local/etc/trafficserver/records.config";
+my $recedit = new Apache::TS::Config::Records(file => $fn);
+
+# Definitely tweak the memory config
+$recedit->set(conf => "proxy.config.cache.ram_cache.size",  val => "2048M");
+
+# These puts the server in forward proxy mode only.
+$recedit->set(conf => "proxy.config.url_remap.remap_required",  val => "0");
+$recedit->set(conf => "proxy.config.reverse_proxy.enabled",  val => "0");
+
+# Fine tuning, you might or might not want these
+$recedit->set(conf => "proxy.config.http.transaction_active_timeout_in", val => "1800");
+$recedit->set(conf => "proxy.config.dns.dedicated_thread", val => "1");
+$recedit->set(conf => "proxy.config.http.normalize_ae_gzip", val => "1");
+
+# Write out the new config file (this won't overwrite your config
+$recedit->write(file => "$fn.new");
diff --git a/lib/perl/lib/Apache/TS.pm.in b/lib/perl/lib/Apache/TS.pm.in
new file mode 100644
index 00000000..0f495054
--- /dev/null
+++ b/lib/perl/lib/Apache/TS.pm.in
@@ -0,0 +1,90 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+package Apache::TS;
+
+use warnings;
+use strict;
+
+require 5.006;
+our $VERSION = "@TS_VERSION_STRING@";
+
+# Version constants
+use constant {
+    VERSION_STRING => "@TS_VERSION_STRING@",
+    VERSION_NUMBER => @TS_VERSION_NUMBER@,
+    VERSION_MAJOR => @TS_VERSION_MAJOR@,
+    VERSION_MINOR => @TS_VERSION_MINOR@,
+    VERSION_MICRO => @TS_VERSION_MICRO@
+};
+
+# Build (configure) constants, for various path and path components
+use constant {
+    PREFIX => "@prefix@",
+    REL_RUNTIMEDIR => "@rel_runtimedir@",
+};
+
+1;
+
+__END__
+
+#-=-=-=-=-=-=-=-= Give us some POD please =-=-=-=-=-=-=-=- 
+
+=head1 NAME:
+
+Apache::TS - a collection of Perl interfaces to manage Apache Traffic Server installations.
+
+=head1 SYNOPSIS
+
+  #!/usr/bin/perl
+  use Apache::TS::AdminClient;
+
+  my $cli = Apache::TS::AdminClient->new(%input);
+  my $string = $cli->get_stat("proxy.config.product_company");
+  print "$string\n";
+
+
+=head1 DESCRIPTION
+
+This is the main module for Apache::TS, in includes the following sub-modules
+  Apache::TS::AdminClient
+  Apache::TS::Config
+  Apache::TS::Config::Records
+
+
+This module, Apache:TS, only defines a set of constants, which are used by both
+the sub-modules as well as scripts.
+
+=head1 LICENSE
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+=cut
+
+#-=-=-=-=-=-=-=-= No more POD for you =-=-=-=-=-=-=-=- 
diff --git a/lib/perl/lib/Apache/TS/AdminClient.pm b/lib/perl/lib/Apache/TS/AdminClient.pm
new file mode 100644
index 00000000..84cd954f
--- /dev/null
+++ b/lib/perl/lib/Apache/TS/AdminClient.pm
@@ -0,0 +1,766 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+package Apache::TS::AdminClient;
+
+use warnings;
+use strict;
+
+require 5.006;
+
+use Carp;
+use IO::Socket::UNIX;
+use IO::Select;
+
+use Apache::TS;
+
+
+# Mgmt API command constants, should track ts/mgmtapi.h
+use constant {
+    TS_FILE_READ            => 0,
+    TS_FILE_WRITE           => 1,
+    TS_RECORD_SET           => 2,
+    TS_RECORD_GET           => 3,
+    TS_PROXY_STATE_GET      => 4,
+    TS_PROXY_STATE_SET      => 5,
+    TS_RECONFIGURE          => 6,
+    TS_RESTART              => 7,
+    TS_BOUNCE               => 8,
+    TS_EVENT_RESOLVE        => 9,
+    TS_EVENT_GET_MLT        => 10,
+    TS_EVENT_ACTIVE         => 11,
+    TS_EVENT_REG_CALLBACK   => 12,
+    TS_EVENT_UNREG_CALLBACK => 13,
+    TS_EVENT_NOTIFY         => 14,
+    TS_SNAPSHOT_TAKE        => 15,
+    TS_SNAPSHOT_RESTORE     => 16,
+    TS_SNAPSHOT_REMOVE      => 17,
+    TS_SNAPSHOT_GET_MLT     => 18,
+    TS_DIAGS                => 19,
+    TS_STATS_RESET          => 20
+};
+
+# We treat both REC_INT and REC_COUNTER the same here
+use constant {
+    TS_REC_INT     => 0,
+    TS_REC_COUNTER => 0,
+    TS_REC_FLOAT   => 2,
+    TS_REC_STRING  => 3
+};
+
+use constant {
+    TS_ERR_OKAY                => 0,
+    TS_ERR_READ_FILE           => 1,
+    TS_ERR_WRITE_FILE          => 2,
+    TS_ERR_PARSE_CONFIG_RULE   => 3,
+    TS_ERR_INVALID_CONFIG_RULE => 4,
+    TS_ERR_NET_ESTABLISH       => 5,
+    TS_ERR_NET_READ            => 6,
+    TS_ERR_NET_WRITE           => 7,
+    TS_ERR_NET_EOF             => 8,
+    TS_ERR_NET_TIMEOUT         => 9,
+    TS_ERR_SYS_CALL            => 10,
+    TS_ERR_PARAMS              => 11,
+    TS_ERR_FAIL                => 12
+};
+
+
+# Semi-intelligent way of finding the mgmtapi socket.
+sub _find_socket {
+    my $path = shift || "";
+    my $name = shift || "mgmtapisocket";
+    my @sockets_def = (
+        $path,
+        Apache::TS::PREFIX . '/' . Apache::TS::REL_RUNTIMEDIR . '/' . 'mgmtapisocket',
+        '/usr/local/var/trafficserver',
+        '/usr/local/var/run/trafficserver',
+        '/usr/local/var/run',
+        '/var/trafficserver',
+        '/var/run/trafficserver',
+        '/var/run',
+        '/opt/ats/var/trafficserver',
+    );
+
+    foreach my $socket (@sockets_def) {
+        return $socket if (-S $socket);
+        return "${socket}/${name}" if (-S "${socket}/${name}");
+
+    }
+    return undef;
+}
+
+#
+# Constructor
+#
+sub new {
+    my ($class, %args) = @_;
+    my $self = {};
+
+    $self->{_socket_path} = _find_socket($args{socket_path});
+    $self->{_socket} = undef;
+    croak
+"Unable to locate socket, please pass socket_path with the management api socket location to Apache::TS::AdminClient"
+      if (!$self->{_socket_path});
+    if ((!-r $self->{_socket_path}) or (!-w $self->{_socket_path}) or (!-S $self->{_socket_path})) {
+        croak "Unable to open $self->{_socket_path} for reads or writes";
+    }
+
+    $self->{_select} = IO::Select->new();
+    bless $self, $class;
+
+    $self->open_socket();
+
+    return $self;
+}
+
+#
+# Destructor
+#
+sub DESTROY {
+    my $self = shift;
+    return $self->close_socket();
+}
+
+#
+# Open the socket (Unix domain)
+#
+sub open_socket {
+    my $self = shift;
+    my %args = @_;
+
+    if (defined($self->{_socket})) {
+        if ($args{force} || $args{reopen}) {
+            $self->close_socket();
+        }
+        else {
+            return undef;
+        }
+    }
+
+    $self->{_socket} = IO::Socket::UNIX->new(
+        Type => SOCK_STREAM,
+        Peer => $self->{_socket_path}
+   ) or croak("Error opening socket - $@");
+
+    return undef unless defined($self->{_socket});
+    $self->{_select}->add($self->{_socket});
+
+    return $self;
+}
+
+sub close_socket {
+    my $self = shift;
+
+    # if socket doesn't exist, return as there's nothing to do.
+    return unless defined($self->{_socket});
+
+    # gracefully close socket.
+    $self->{_select}->remove($self->{_socket});
+    $self->{_socket}->close();
+    $self->{_socket} = undef;
+
+    return $self;
+}
+
+#
+# Do reads()'s on our Unix domain socket, takes an optional timeout, in ms's.
+#
+sub _do_read {
+    my $self = shift;
+    my $timeout = shift || 1/1000.0; # 1ms by default
+    my $res = "";
+
+    while ($self->{_select}->can_read($timeout)) {
+        my $rc = $self->{_socket}->sysread($res, 1024, length($res));
+    }
+
+    return $res || undef;
+}
+
+
+#
+# Get (read) a stat out of the local manager. Note that the assumption is
+# that you are calling this with an existing stats "name".
+#
+sub get_stat {
+    my ($self, $stat) = @_;
+    my $res               = "";
+    my $max_read_attempts = 25;
+
+    return undef unless defined($self->{_socket});
+    return undef unless $self->{_select}->can_write(10);
+
+# This is a total hack for now, we need to wrap this into the proper mgmt API library.
+    $self->{_socket}->print(pack("sla*", TS_RECORD_GET, length($stat)), $stat);
+    $res = $self->_do_read();
+
+    my @resp = unpack("slls", $res);
+    return undef unless (scalar(@resp) == 4);
+
+    if ($resp[0] == TS_ERR_OKAY) {
+        if ($resp[3] < TS_REC_FLOAT) {
+            @resp = unpack("sllsq", $res);
+            return undef unless (scalar(@resp) == 5);
+            return int($resp[4]);
+        }
+        elsif ($resp[3] == TS_REC_FLOAT) {
+            @resp = unpack("sllsf", $res);
+            return undef unless (scalar(@resp) == 5);
+            return $resp[4];
+        }
+        elsif ($resp[3] == TS_REC_STRING) {
+            @resp = unpack("sllsa*", $res);
+            return undef unless (scalar(@resp) == 5);
+	    my @result = split($stat, $resp[4]);
+            return $result[0];
+        }
+    }
+
+    return undef;
+}
+*get_config = \&get_stat;
+
+1;
+
+__END__
+
+#-=-=-=-=-=-=-=-= Give us some POD please =-=-=-=-=-=-=-=- 
+
+=head1 NAME:
+
+Apache::TS::AdminClient - a perl interface to the statistics and configuration settings stored within Apache Traffic Server.
+
+=head1 SYNOPSIS
+
+  #!/usr/bin/perl
+  use Apache::TS::AdminClient;
+
+  my $cli = Apache::TS::AdminClient->new(%input);
+  my $string = $cli->get_stat("proxy.config.product_company");
+  print "$string\n";
+
+
+=head1 DESCRIPTION:
+
+AdminClient opens a TCP connection to a unix domain socket on local disk.  When the connection is established, 
+AdminClient will write requests to the socket and wait for Apache Traffic Server to return a response.  Valid 
+request strings can be found in RecordsConfig.cc which is included with Apache Traffic Server source.  
+A list of valid request strings are included with this documentation, but this included list may not be complete
+as future releases of Apache Traffic Server may include new request strings or remove existing ones.  
+
+=head1 CONSTRUCTOR
+
+When the object is created for this module, it assumes the 'Unix Domain Socket' is at the default location from
+the Apache Traffic Server installation. This can be changed when creating the object by setting B<'socket_path'>.
+For example: 
+
+=over 4
+
+=item my $cli = AdminClient->new(socket_path=> "/var/trafficserver");
+
+
+This would make the module look for the 'Unix Domain Socket' in the directory '/var/trafficserver'. The path
+can optionally include the name of the Socket file, without it the constructor defaults to 'mgmtapisocket'.
+
+=back
+
+=head1 PUBLIC METHODS
+
+To read a single metric (or configuration), two APIs are available:
+
+=over 4
+
+=item $cli->get_stat($stats_name);
+
+=item $cli->get_config($config_name);
+
+This will return a (scalar) value for this metric or configuration.
+
+=back
+
+=head1 traffic_line
+
+There is a command line tool included with Apache Traffic Server called traffic_line which overlaps with this module.  traffic_line 
+can be used to read and write statistics or config settings that this module can.  Hence if you don't want to write a perl one-liner to 
+get to this information, traffic_line is your tool.
+
+=head1 List of configurations
+
+The Apache Traffic Server Administration Manual will explain what these strings represent.  (http://trafficserver.apache.org/docs/)
+
+ proxy.config.accept_threads
+ proxy.config.task_threads
+ proxy.config.admin.admin_user
+ proxy.config.admin.autoconf.localhost_only
+ proxy.config.admin.autoconf.pac_filename
+ proxy.config.admin.autoconf_port
+ proxy.config.admin.autoconf.doc_root
+ proxy.config.admin.cli_path
+ proxy.config.admin.number_config_bak
+ proxy.config.admin.user_id
+ proxy.config.alarm.abs_path
+ proxy.config.alarm.bin
+ proxy.config.alarm_email
+ proxy.config.alarm.script_runtime
+ proxy.config.bandwidth_mgmt.filename
+ proxy.config.bin_path
+ proxy.config.body_factory.enable_customizations
+ proxy.config.body_factory.enable_logging
+ proxy.config.body_factory.response_suppression_mode
+ proxy.config.body_factory.template_sets_dir
+ proxy.config.cache.agg_write_backlog
+ proxy.config.cache.alt_rewrite_max_size
+ proxy.config.cache.control.filename
+ proxy.config.cache.dir.sync_frequency
+ proxy.config.cache.enable_checksum
+ proxy.config.cache.enable_read_while_writer
+ proxy.config.cache.hostdb.disable_reverse_lookup
+ proxy.config.cache.hostdb.sync_frequency
+ proxy.config.cache.hosting_filename
+ proxy.config.cache.ip_allow.filename
+ proxy.config.cache.limits.http.max_alts
+ proxy.config.cache.max_disk_errors
+ proxy.config.cache.max_doc_size
+ proxy.config.cache.min_average_object_size
+ proxy.config.cache.volume_filename
+ proxy.config.cache.permit.pinning
+ proxy.config.cache.ram_cache_cutoff
+ proxy.config.cache.ram_cache.size
+ proxy.config.cache.select_alternate
+ proxy.config.cache.storage_filename
+ proxy.config.cache.threads_per_disk
+ proxy.config.cache.url_hash_method
+ proxy.config.cache.vary_on_user_agent
+ proxy.config.cache.mutex_retry_delay
+ proxy.config.cluster.cluster_configuration
+ proxy.config.cluster.cluster_load_clear_duration
+ proxy.config.cluster.cluster_load_exceed_duration
+ proxy.config.cluster.cluster_port
+ proxy.config.cluster.delta_thresh
+ proxy.config.cluster.enable_monitor
+ proxy.config.cluster.ethernet_interface
+ proxy.config.cluster.load_compute_interval_msecs
+ proxy.config.cluster.load_monitor_enabled
+ proxy.config.cluster.log_bogus_mc_msgs
+ proxy.config.cluster.mc_group_addr
+ proxy.config.cluster.mcport
+ proxy.config.cluster.mc_ttl
+ proxy.config.cluster.monitor_interval_secs
+ proxy.config.cluster.msecs_per_ping_response_bucket
+ proxy.config.cluster.peer_timeout
+ proxy.config.cluster.periodic_timer_interval_msecs
+ proxy.config.cluster.ping_history_buf_length
+ proxy.config.cluster.ping_latency_threshold_msecs
+ proxy.config.cluster.ping_response_buckets
+ proxy.config.cluster.ping_send_interval_msecs
+ proxy.config.cluster.receive_buffer_size
+ proxy.config.cluster.rpc_cache_cluster
+ proxy.config.cluster.rsport
+ proxy.config.cluster.send_buffer_size
+ proxy.config.cluster.sock_option_flag
+ proxy.config.cluster.startup_timeout
+ proxy.config.cluster.threads
+ proxy.config.config_dir
+ proxy.config.cop.core_signal
+ proxy.config.cop.linux_min_memfree_kb
+ proxy.config.cop.linux_min_swapfree_kb
+ proxy.config.core_limit
+ proxy.config.diags.action.enabled
+ proxy.config.diags.action.tags
+ proxy.config.diags.debug.enabled
+ proxy.config.diags.debug.tags
+ proxy.config.diags.output.alert
+ proxy.config.diags.output.debug
+ proxy.config.diags.output.diag
+ proxy.config.diags.output.emergency
+ proxy.config.diags.output.error
+ proxy.config.diags.output.fatal
+ proxy.config.diags.output.note
+ proxy.config.diags.output.status
+ proxy.config.diags.output.warning
+ proxy.config.diags.show_location
+ proxy.config.dns.failover_number
+ proxy.config.dns.failover_period
+ proxy.config.dns.lookup_timeout
+ proxy.config.dns.max_dns_in_flight
+ proxy.config.dns.nameservers
+ proxy.config.dns.resolv_conf
+ proxy.config.dns.retries
+ proxy.config.dns.round_robin_nameservers
+ proxy.config.dns.search_default_domains
+ proxy.config.dns.splitDNS.enabled
+ proxy.config.dns.splitdns.filename
+ proxy.config.dns.url_expansions
+ proxy.config.dump_mem_info_frequency
+ proxy.config.env_prep
+ proxy.config.exec_thread.autoconfig
+ proxy.config.exec_thread.autoconfig.scale
+ proxy.config.exec_thread.limit
+ proxy.config.header.parse.no_host_url_redirect
+ proxy.config.hostdb
+ proxy.config.hostdb.cluster
+ proxy.config.hostdb.cluster.round_robin
+ proxy.config.hostdb.fail.timeout
+ proxy.config.hostdb.filename
+ proxy.config.hostdb.lookup_timeout
+ proxy.config.hostdb.migrate_on_demand
+ proxy.config.hostdb.re_dns_on_reload
+ proxy.config.hostdb.serve_stale_for
+ proxy.config.hostdb.size
+ proxy.config.hostdb.storage_path
+ proxy.config.hostdb.storage_size
+ proxy.config.hostdb.strict_round_robin
+ proxy.config.hostdb.timeout
+ proxy.config.hostdb.ttl_mode
+ proxy.config.hostdb.verify_after
+ proxy.config.http.accept_encoding_filter.filename
+ proxy.config.http.accept_no_activity_timeout
+ proxy.config.http.anonymize_insert_client_ip
+ proxy.config.http.anonymize_other_header_list
+ proxy.config.http.anonymize_remove_client_ip
+ proxy.config.http.anonymize_remove_cookie
+ proxy.config.http.anonymize_remove_from
+ proxy.config.http.anonymize_remove_referer
+ proxy.config.http.anonymize_remove_user_agent
+ proxy.config.http.background_fill_active_timeout
+ proxy.config.http.background_fill_completed_threshold
+ proxy.config.http.cache.cache_responses_to_cookies
+ proxy.config.http.cache.cache_urls_that_look_dynamic
+ proxy.config.http.cache.enable_default_vary_headers
+ proxy.config.http.cache.fuzz.min_time
+ proxy.config.http.cache.fuzz.probability
+ proxy.config.http.cache.fuzz.time
+ proxy.config.http.cache.guaranteed_max_lifetime
+ proxy.config.http.cache.guaranteed_min_lifetime
+ proxy.config.http.cache.heuristic_lm_factor
+ proxy.config.http.cache.heuristic_max_lifetime
+ proxy.config.http.cache.heuristic_min_lifetime
+ proxy.config.http.cache.http
+ proxy.config.http.cache.ignore_accept_charset_mismatch
+ proxy.config.http.cache.ignore_accept_encoding_mismatch
+ proxy.config.http.cache.ignore_accept_language_mismatch
+ proxy.config.http.cache.ignore_accept_mismatch
+ proxy.config.http.cache.ignore_authentication
+ proxy.config.http.cache.ignore_client_cc_max_age
+ proxy.config.http.cache.cluster_cache_local
+ proxy.config.http.cache.ignore_client_no_cache
+ proxy.config.http.cache.ignore_server_no_cache
+ proxy.config.http.cache.ims_on_client_no_cache
+ proxy.config.http.cache.max_open_read_retries
+ proxy.config.http.cache.max_open_write_retries
+ proxy.config.http.cache.max_stale_age
+ proxy.config.http.cache.open_read_retry_time
+ proxy.config.http.cache.range.lookup
+ proxy.config.http.cache.range.write
+ proxy.config.http.cache.required_headers
+ proxy.config.http.cache.vary_default_images
+ proxy.config.http.cache.vary_default_other
+ proxy.config.http.cache.vary_default_text
+ proxy.config.http.cache.when_to_revalidate
+ proxy.config.http.chunking_enabled
+ proxy.config.http.congestion_control.default.client_wait_interval
+ proxy.config.http.congestion_control.default.congestion_scheme
+ proxy.config.http.congestion_control.default.dead_os_conn_retries
+ proxy.config.http.congestion_control.default.dead_os_conn_timeout
+ proxy.config.http.congestion_control.default.error_page
+ proxy.config.http.congestion_control.default.fail_window
+ proxy.config.http.congestion_control.default.live_os_conn_retries
+ proxy.config.http.congestion_control.default.live_os_conn_timeout
+ proxy.config.http.congestion_control.default.max_connection
+ proxy.config.http.congestion_control.default.max_connection_failures
+ proxy.config.http.congestion_control.default.proxy_retry_interval
+ proxy.config.http.congestion_control.default.wait_interval_alpha
+ proxy.config.http.congestion_control.enabled
+ proxy.config.http.congestion_control.filename
+ proxy.config.http.congestion_control.localtime
+ proxy.config.http.connect_attempts_max_retries
+ proxy.config.http.connect_attempts_max_retries_dead_server
+ proxy.config.http.connect_attempts_rr_retries
+ proxy.config.http.connect_attempts_timeout
+ proxy.config.http.connect_ports
+ proxy.config.http.default_buffer_size
+ proxy.config.http.default_buffer_water_mark
+ proxy.config.http.doc_in_cache_skip_dns
+ proxy.config.http.down_server.abort_threshold
+ proxy.config.http.down_server.cache_time
+ proxy.config.http.enabled
+ proxy.config.http.enable_http_info
+ proxy.config.http.enable_http_stats
+ proxy.config.http.enable_url_expandomatic
+ proxy.config.http.errors.log_error_pages
+ proxy.config.http.forward.proxy_auth_to_parent
+ proxy.config.http.global_user_agent_header
+ proxy.config.http.insert_age_in_response
+ proxy.config.http.insert_request_via_str
+ proxy.config.http.insert_response_via_str
+ proxy.config.http.insert_squid_x_forwarded_for
+ proxy.config.http.keep_alive_enabled_in
+ proxy.config.http.keep_alive_enabled_out
+ proxy.config.http.keep_alive_no_activity_timeout_in
+ proxy.config.http.keep_alive_no_activity_timeout_out
+ proxy.config.http.keep_alive_post_out
+ proxy.config.http.negative_caching_enabled
+ proxy.config.http.negative_caching_lifetime
+ proxy.config.http.negative_revalidating_enabled
+ proxy.config.http.negative_revalidating_lifetime
+ proxy.config.http.no_dns_just_forward_to_parent
+ proxy.config.http.no_origin_server_dns
+ proxy.config.http.normalize_ae_gzip
+ proxy.config.http.number_of_redirections
+ proxy.config.http.origin_max_connections
+ proxy.config.http.origin_min_keep_alive_connections
+ proxy.config.http.parent_proxies
+ proxy.config.http.parent_proxy.connect_attempts_timeout
+ proxy.config.http.parent_proxy.fail_threshold
+ proxy.config.http.parent_proxy.file
+ proxy.config.http.parent_proxy.per_parent_connect_attempts
+ proxy.config.http.parent_proxy.retry_time
+ proxy.config.http.parent_proxy_routing_enable
+ proxy.config.http.parent_proxy.total_connect_attempts
+ proxy.config.http.post_connect_attempts_timeout
+ proxy.config.http.post_copy_size
+ proxy.config.http.push_method_enabled
+ proxy.config.http.quick_filter.mask
+ proxy.config.http.record_heartbeat
+ proxy.config.http.record_tcp_mem_hit
+ proxy.config.http.redirection_enabled
+ proxy.config.http.referer_default_redirect
+ proxy.config.http.referer_filter
+ proxy.config.http.referer_format_redirect
+ proxy.config.http.request_header_max_size
+ proxy.config.http.request_via_str
+ proxy.config.http.response_header_max_size
+ proxy.config.http.response_server_enabled
+ proxy.config.http.response_server_str
+ proxy.config.http.response_via_str
+ proxy.config.http.send_http11_requests
+ proxy.config.http.server_max_connections
+ proxy.config.http.server_port
+ proxy.config.http.server_port_attr
+ proxy.config.http.share_server_sessions
+ proxy.config.http.slow.log.threshold
+ proxy.config.http.connect_ports
+ proxy.config.http.transaction_active_timeout_in
+ proxy.config.http.transaction_active_timeout_out
+ proxy.config.http.transaction_no_activity_timeout_in
+ proxy.config.http.transaction_no_activity_timeout_out
+ proxy.config.http_ui_enabled
+ proxy.config.http.uncacheable_requests_bypass_parent
+ proxy.config.icp.default_reply_port
+ proxy.config.icp.enabled
+ proxy.config.icp.icp_configuration
+ proxy.config.icp.icp_interface
+ proxy.config.icp.icp_port
+ proxy.config.icp.lookup_local
+ proxy.config.icp.multicast_enabled
+ proxy.config.icp.query_timeout
+ proxy.config.icp.reply_to_unknown_peer
+ proxy.config.icp.stale_icp_enabled
+ proxy.config.io.max_buffer_size
+ proxy.config.lm.pserver_timeout_msecs
+ proxy.config.lm.pserver_timeout_secs
+ proxy.config.lm.sem_id
+ proxy.config.local_state_dir
+ proxy.config.log.ascii_buffer_size
+ proxy.config.log.auto_delete_rolled_files
+ proxy.config.log.collation_host
+ proxy.config.log.collation_host_tagged
+ proxy.config.log.collation_max_send_buffers
+ proxy.config.log.collation_port
+ proxy.config.log.collation_retry_sec
+ proxy.config.log.collation_secret
+ proxy.config.log.common_log_enabled
+ proxy.config.log.common_log_header
+ proxy.config.log.common_log_is_ascii
+ proxy.config.log.common_log_name
+ proxy.config.log.custom_logs_enabled
+ proxy.config.log.extended2_log_enabled
+ proxy.config.log.extended2_log_header
+ proxy.config.log.extended2_log_is_ascii
+ proxy.config.log.extended2_log_name
+ proxy.config.log.extended_log_enabled
+ proxy.config.log.extended_log_header
+ proxy.config.log.extended_log_is_ascii
+ proxy.config.log.extended_log_name
+ proxy.config.log.file_stat_frequency
+ proxy.config.log.hostname
+ proxy.config.log.hosts_config_file
+ proxy.config.log.log_buffer_size
+ proxy.config.log.logfile_dir
+ proxy.config.log.logfile_perm
+ proxy.config.log.logging_enabled
+ proxy.config.log.max_line_size
+ proxy.config.log.max_secs_per_buffer
+ proxy.config.log.max_space_mb_for_logs
+ proxy.config.log.max_space_mb_for_orphan_logs
+ proxy.config.log.max_space_mb_headroom
+ proxy.config.log.overspill_report_count
+ proxy.config.log.rolling_enabled
+ proxy.config.log.rolling_interval_sec
+ proxy.config.log.rolling_offset_hr
+ proxy.config.log.rolling_size_mb
+ proxy.config.log.sampling_frequency
+ proxy.config.log.search_log_enabled
+ proxy.config.log.search_log_filters
+ proxy.config.log.search_rolling_interval_sec
+ proxy.config.log.search_server_ip_addr
+ proxy.config.log.search_server_port
+ proxy.config.log.search_top_sites
+ proxy.config.log.search_url_filter
+ proxy.config.log.separate_host_logs
+ proxy.config.log.separate_icp_logs
+ proxy.config.log.space_used_frequency
+ proxy.config.log.squid_log_enabled
+ proxy.config.log.squid_log_header
+ proxy.config.log.squid_log_is_ascii
+ proxy.config.log.squid_log_name
+ proxy.config.log.xml_config_file
+ proxy.config.manager_binary
+ proxy.config.net.connections_throttle
+ proxy.config.net.listen_backlog
+ proxy.config.net_snapshot_filename
+ proxy.config.net.sock_mss_in
+ proxy.config.net.sock_option_flag_in
+ proxy.config.net.sock_option_flag_out
+ proxy.config.net.sock_recv_buffer_size_in
+ proxy.config.net.sock_recv_buffer_size_out
+ proxy.config.net.sock_send_buffer_size_in
+ proxy.config.net.sock_send_buffer_size_out
+ proxy.config.net.defer_accept
+ proxy.config.output.logfile
+ proxy.config.ping.npacks_to_trans
+ proxy.config.ping.timeout_sec
+ proxy.config.plugin.plugin_dir
+ proxy.config.plugin.plugin_mgmt_dir
+ proxy.config.prefetch.child_port
+ proxy.config.prefetch.config_file
+ proxy.config.prefetch.default_data_proto
+ proxy.config.prefetch.default_url_proto
+ proxy.config.prefetch.keepalive_timeout
+ proxy.config.prefetch.max_object_size
+ proxy.config.prefetch.max_recursion
+ proxy.config.prefetch.prefetch_enabled
+ proxy.config.prefetch.push_cached_objects
+ proxy.config.prefetch.redirection
+ proxy.config.prefetch.url_buffer_size
+ proxy.config.prefetch.url_buffer_timeout
+ proxy.config.process_manager.enable_mgmt_port
+ proxy.config.process_manager.mgmt_port
+ proxy.config.process_manager.timeout
+ proxy.config.product_company
+ proxy.config.product_name
+ proxy.config.product_vendor
+ proxy.config.proxy.authenticate.basic.realm
+ proxy.config.proxy_binary
+ proxy.config.proxy_binary_opts
+ proxy.config.proxy_name
+ proxy.config.remap.num_remap_threads
+ proxy.config.res_track_memory
+ proxy.config.reverse_proxy.enabled
+ proxy.config.reverse_proxy.oldasxbehavior
+ proxy.config.snapshot_dir
+ proxy.config.socks.accept_enabled
+ proxy.config.socks.accept_port
+ proxy.config.socks.connection_attempts
+ proxy.config.socks.default_servers
+ proxy.config.socks.http_port
+ proxy.config.socks.per_server_connection_attempts
+ proxy.config.socks.server_connect_timeout
+ proxy.config.socks.server_fail_threshold
+ proxy.config.socks.server_retry_time
+ proxy.config.socks.server_retry_timeout
+ proxy.config.socks.socks_config_file
+ proxy.config.socks.socks_needed
+ proxy.config.socks.socks_timeout
+ proxy.config.socks.socks_version
+ proxy.config.srv_enabled
+ proxy.config.ssl.CA.cert.filename
+ proxy.config.ssl.CA.cert.path
+ proxy.config.ssl.client.CA.cert.filename
+ proxy.config.ssl.client.CA.cert.path
+ proxy.config.ssl.client.cert.filename
+ proxy.config.ssl.client.certification_level
+ proxy.config.ssl.client.cert.path
+ proxy.config.ssl.client.private_key.filename
+ proxy.config.ssl.client.private_key.path
+ proxy.config.ssl.client.verify.server
+ proxy.config.ssl.enabled
+ proxy.config.ssl.number.threads
+ proxy.config.ssl.server.cert_chain.filename
+ proxy.config.ssl.server.cert.path
+ proxy.config.ssl.server.cipher_suite
+ proxy.config.ssl.server.honor_cipher_order
+ proxy.config.ssl.SSLv2
+ proxy.config.ssl.SSLv3
+ proxy.config.ssl.TLSv1
+ proxy.config.ssl.compression
+ proxy.config.ssl.server.multicert.filename
+ proxy.config.ssl.server_port
+ proxy.config.ssl.server.private_key.path
+ proxy.config.stack_dump_enabled
+ proxy.config.stat_collector.interval
+ proxy.config.stat_collector.port
+ proxy.config.stats.config_file
+ proxy.config.stats.snap_file
+ proxy.config.stats.snap_frequency
+ proxy.config.syslog_facility
+ proxy.config.system.mmap_max
+ proxy.config.system.file_max_pct
+ proxy.config.thread.default.stacksize
+ proxy.config.udp.free_cancelled_pkts_sec
+ proxy.config.udp.periodic_cleanup
+ proxy.config.udp.send_retries
+ proxy.config.update.concurrent_updates
+ proxy.config.update.enabled
+ proxy.config.update.force
+ proxy.config.update.max_update_state_machines
+ proxy.config.update.memory_use_mb
+ proxy.config.update.retry_count
+ proxy.config.update.retry_interval
+ proxy.config.update.update_configuration
+ proxy.config.url_remap.default_to_server_pac
+ proxy.config.url_remap.default_to_server_pac_port
+ proxy.config.url_remap.filename
+ proxy.config.url_remap.pristine_host_hdr
+ proxy.config.url_remap.remap_required
+ proxy.config.user_name
+ proxy.config.vmap.addr_file
+ proxy.config.vmap.down_up_timeout
+ proxy.config.vmap.enabled
+
+=head1 LICENSE
+
+ Simple Apache Traffic Server client object, to communicate with the local manager.
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+=cut
+
+#-=-=-=-=-=-=-=-= No more POD for you =-=-=-=-=-=-=-=- 
diff --git a/lib/perl/lib/Apache/TS/Config.pm b/lib/perl/lib/Apache/TS/Config.pm
new file mode 100644
index 00000000..4e9e7aa6
--- /dev/null
+++ b/lib/perl/lib/Apache/TS/Config.pm
@@ -0,0 +1,37 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+package Apache::TS::Config;
+
+use warnings;
+use strict;
+
+require 5.006;
+
+use Carp;
+require Exporter;
+
+our @ISA    = qw( Exporter );
+our @EXPORT = qw(TS_CONF_UNMODIFIED TS_CONF_MODIFIED TS_CONF_REMOVED);
+
+our $VERSION = "1.0";
+
+# Constants
+use constant {
+    TS_CONF_UNMODIFIED     => 0,
+    TS_CONF_MODIFIED       => 1,
+    TS_CONF_REMOVED        => 2
+};
diff --git a/lib/perl/lib/Apache/TS/Config/Records.pm b/lib/perl/lib/Apache/TS/Config/Records.pm
new file mode 100644
index 00000000..8c49af8c
--- /dev/null
+++ b/lib/perl/lib/Apache/TS/Config/Records.pm
@@ -0,0 +1,303 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+############################################################################
+# This is a simple module to let you read, modify and add to an Apache
+# Traffic Server records.config file. The idea is that you would write a
+# simple script (like example below) to update a "stock" records.config with
+# the changes applicable to your application. This allows you to uprade to
+# a newer default config file from a new release. See the embedded
+# perldoc for more details.
+############################################################################
+
+
+package Apache::TS::Config::Records;
+
+use Apache::TS::Config;
+
+use warnings;
+use strict;
+require 5.006;
+
+use Carp;
+
+our $VERSION = "1.0";
+
+
+#
+# Constructor
+#
+sub new {
+    my ($class, %args) = @_;
+    my $self = {};
+    my $fn = $args{file};
+
+    $fn = $args{filename} unless defined($fn);
+    $fn = "-" unless defined($fn);
+
+    $self->{_filename} = $fn;  # Filename to open when loading and saving
+    $self->{_configs} = [];            # Storage, and to to preserve order
+    $self->{_lookup} = {};             # For faster lookup, indexes into the above
+    $self->{_ix} = -1;                 # Empty
+    bless $self, $class;
+
+    $self->load() if $self->{_filename};
+
+    return $self;
+}
+
+
+#
+# Load a records.config file
+#
+sub load {
+    my $self = shift;
+    my %args = @_;
+    my $fn = $args{file};
+
+    $fn = $args{filename} unless defined($fn);
+    $fn = $self->{_filename} unless defined($fn);
+
+    open(FH, "<$fn") || die "Can't open file $fn for reading";
+    while (<FH>) {
+        chomp;
+        my @p = split(/\s+/, $_, 4);
+
+        push(@{$self->{_configs}}, [$_, \@p, TS_CONF_UNMODIFIED]);
+
+        ++($self->{_ix});
+        next unless ($#p == 3) && (($p[0] eq "LOCAL") || ($p[0] eq "CONFIG"));
+        print "Warning! duplicate configuration $p[1]\n" if exists($self->{_lookup}->{$p[1]});
+      
+        $self->{_lookup}->{$p[1]} = $self->{_ix};
+    }
+}
+
+
+#
+# Get an existing configuration line, as an anon array.
+#
+sub get {
+    my $self = shift;
+    my %args = @_;
+    my $c = $args{conf};
+
+    $c = $args{config} unless defined($c);
+    my $ix = $self->{_lookup}->{$c};
+
+    return [] unless defined($ix);
+    return $self->{_configs}->[$ix];
+}
+
+
+#
+# Modify one configuration value
+#
+sub set {
+    my $self = shift;
+    my %args = @_;
+    my $c = $args{conf};
+    my $v = $args{val};
+
+    $c = $args{config} unless defined($c);
+    $v = $args{value} unless defined($v);
+
+    my $ix = $self->{_lookup}->{$c};
+
+    if (!defined($ix)) {
+      my $type = $args{type};
+
+      $type = "INT" unless defined($type);
+      $self->append(line => "CONFIG $c $type $v");
+    } else {
+        my $val = $self->{_configs}->[$ix];
+
+        @{$val->[1]}[3] = $v;
+        $val->[2] = TS_CONF_MODIFIED;
+    }
+}
+
+
+#
+# Remove a configuration from the file.
+#
+sub remove {
+    my $self = shift;
+    my %args = @_;
+    my $c = $args{conf};
+
+    $c = $args{config} unless defined($c);
+
+    my $ix = $self->{_lookup}->{$c};
+
+    $self->{_configs}->[$ix]->[2] = TS_CONF_REMOVED if defined($ix);
+}
+
+
+#
+# Append anything to the "end" of the configuration.
+#
+sub append {
+    my $self = shift;
+    my %args = @_;
+    my $line = $args{line};
+
+    my @p = split(/\s+/, $line, 4);
+
+    # Don't appending duplicated configs
+    if (($#p == 3) && exists($self->{_lookup}->{$p[1]})) {
+        print "Warning: duplicate configuration $p[1]\n";
+        return;
+    }
+
+    push(@{$self->{_configs}}, [$line, \@p, TS_CONF_UNMODIFIED]);
+    ++($self->{_ix});
+    $self->{_lookup}->{$p[1]} = $self->{_ix} if ($#p == 3) && (($p[0] eq "LOCAL") || ($p[0] eq "CONFIG"));
+}
+
+
+#
+# Write the new configuration file to STDOUT, or provided 
+#
+sub write {
+    my $self = shift;
+    my %args = @_;
+    my $fn = $args{file};
+
+    $fn = $args{filename} unless defined($fn);
+    $fn = "-" unless defined($fn);
+
+    if ($fn ne "-") {
+        close(STDOUT);
+        open(STDOUT, ">$fn") || die "Can't open $fn for writing";
+    }
+
+    foreach (@{$self->{_configs}}) {
+        if ($_->[2] == TS_CONF_UNMODIFIED) {
+            print $_->[0], "\n";
+        } elsif ($_->[2] == TS_CONF_MODIFIED) {
+            print join(" ", @{$_->[1]}), "\n";
+        } else {
+            # No-op if removed
+        }
+    }
+}
+1;
+
+__END__
+
+=head1 NAME
+
+Apache::TS::Config::Records - Manage the Apache Traffic Server records.config file
+
+=head1 SYNOPSIS
+
+  #!/usr/bin/perl
+
+  use Apache::TS::Config::Records;
+
+  my $r = new Apache::TS::Config::Records(file => "/tmp/records.config");
+  $r->set(conf => "proxy.config.log.extended_log_enabled",
+          val => "123");
+  $r->write(file => "/tmp/records.config.new");
+
+=head1 DESCRIPTION
+
+This module implements a convenient interface to read, modify and save
+the records.config file as used by Apache Traffic Server.
+
+Instantiating a new Config::Records class, with a file provided, will
+automatically load that configuration. Don't call the load() method
+explicitly in this case. 
+
+=head2 API Methods
+
+The following are methods in the Records class. 
+
+=over 8
+
+=item new
+
+Instantiate a new object. The file name is optionally provided, and if
+present that file is immediately loaded (see the load() method
+below). Example:
+
+  my $r = new Apache::TS::Config::Records(file => $fname);
+    
+=item load
+
+Explicitly load a configuration file, merging the items with any
+existing values. This is useful to for example merge multiple
+configuration into one single structure
+
+=item get
+
+Get an existing configuration line. This is useful for
+detecting that a config exists or not, for example. The
+return value is an anonymous array like
+
+  [<line string>, [value split into 4 fields, flag if changed]
+
+
+You probably shouldn't modify this array.
+
+=item set
+
+Modify one configuration value, with the provided value. Both the conf
+name and the value are required. Example:
+
+  $r->set(conf => "proxy.config.exec_thread.autoconfig",
+          val => "0");
+
+conf is short for "config", val is short for "value", and all are
+acceptable.
+
+=item remove
+
+Remove a specified configuration, the mandatory option is conf (or
+"config"). Example:
+
+  $r->remove(conf => "proxy.config.exec_thread.autoconfig");
+
+=item append
+
+Append a string to the "end" of the finished configuration file. We
+will assure that no duplicated configurations are added. The input is a
+single line, as per the normal records.config syntax. The purpose of
+this is to add new sections to the configuration, with appropriate
+comments etc. Example:
+
+  $r->append(line => "");
+  $r->append(line => "# My local stuff");
+  $r->set(conf => "proxy.config.dns.dedicated_thread",
+          val => "1");
+
+=item write
+
+Write the new configuration file to STDOUT, or a filename if
+provided. Example:
+
+  $r->write(file => "/etc/trafficserver/records.config");
+
+=back
+
+=head1 SEE ALSO
+
+L<Apache::TS::Config>
+
+=cut
diff --git a/lib/perl/t/Apache-TS-AdminClient.t b/lib/perl/t/Apache-TS-AdminClient.t
new file mode 100644
index 00000000..c5272024
--- /dev/null
+++ b/lib/perl/t/Apache-TS-AdminClient.t
@@ -0,0 +1,35 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Before `make install' is performed this script should be runnable with
+# `make test'. After `make install' it should work as `perl Apache-TS-AdminClient.t'
+
+#########################
+
+# change 'tests => 1' to 'tests => last_test_to_print';
+
+
+use Test::More tests => 2;
+BEGIN { use_ok('Apache::TS::AdminClient') };
+
+#########################
+
+# Insert your test code below, the Test::More module is use()ed here so read
+# its man page ( perldoc Test::More ) for help writing this test script.
+
+#----- is this right or do we need to use Test::MockObject as well? 
+our @methods = qw(new DESTROY open_socket close_socket get_stat);
+can_ok('Apache::TS::AdminClient', @methods);
diff --git a/lib/records/I_RecAlarms.h b/lib/records/I_RecAlarms.h
new file mode 100644
index 00000000..25bebb91
--- /dev/null
+++ b/lib/records/I_RecAlarms.h
@@ -0,0 +1,50 @@
+/** @file
+
+  Public REC_ALARM defines
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_ALARMS_H_
+#define _I_REC_ALARMS_H_
+
+// copy from mgmt/Alarms.h
+#define REC_ALARM_PROXY_PROCESS_DIED            1
+#define REC_ALARM_PROXY_PROCESS_BORN            2
+#define REC_ALARM_PROXY_PEER_BORN               3
+#define REC_ALARM_PROXY_PEER_DIED               4
+#define REC_ALARM_PROXY_CONFIG_ERROR            5
+#define REC_ALARM_PROXY_SYSTEM_ERROR            6
+#define REC_ALARM_PROXY_LOG_SPACE_CRISIS        7
+#define REC_ALARM_PROXY_CACHE_ERROR             8
+#define REC_ALARM_PROXY_CACHE_WARNING           9
+#define REC_ALARM_PROXY_LOGGING_ERROR           10
+#define REC_ALARM_PROXY_LOGGING_WARNING         11
+// Currently unused: 12
+#define REC_ALARM_REC_TEST                      13
+#define REC_ALARM_CONFIG_UPDATE_FAILED          14
+#define REC_ALARM_WEB_ERROR                     15
+#define REC_ALARM_PING_FAILURE	                16
+#define REC_ALARM_REC_CONFIG_ERROR              17
+#define REC_ALARM_ADD_ALARM                     18
+#define REC_ALARM_PROXY_LOG_SPACE_ROLLED        19
+#define REC_ALARM_PROXY_HTTP_CONGESTED_SERVER   20
+#define REC_ALARM_PROXY_HTTP_ALLEVIATED_SERVER  21
+
+#endif
diff --git a/lib/records/I_RecCore.h b/lib/records/I_RecCore.h
new file mode 100644
index 00000000..8b204c1b
--- /dev/null
+++ b/lib/records/I_RecCore.h
@@ -0,0 +1,305 @@
+/** @file
+
+  Public RecCore declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_CORE_H_
+#define _I_REC_CORE_H_
+
+#include "Diags.h"
+
+#include "I_RecDefs.h"
+#include "I_RecAlarms.h"
+#include "I_RecSignals.h"
+#include "I_RecEvents.h"
+
+
+//-------------------------------------------------------------------------
+// Diagnostic Output
+//-------------------------------------------------------------------------
+int RecSetDiags(Diags * diags);
+
+//-------------------------------------------------------------------------
+// Config File Parsing
+//-------------------------------------------------------------------------
+typedef void (*RecConfigEntryCallback)(RecT rec_type, RecDataT data_type, const char * name, const char * value, bool inc_version);
+
+void RecConfigFileInit(void);
+int RecConfigFileParse(const char * path, RecConfigEntryCallback handler, bool inc_version);
+
+// Return a copy of the system's local state directory, taking proxy.config.local_state_dir into account. The
+// caller MUST release the result with ats_free().
+char * RecConfigReadRuntimeDir();
+
+// Return a copy of the system's snapshot directory, taking proxy.config.snapshot_dir into account. The caller
+// MUST release the result with ats_free().
+char * RecConfigReadSnapshotDir();
+
+// Return a copy of the system's log directory, taking proxy.config.log.logfile_dir into account. The caller
+// MUST release the result with ats_free().
+char * RecConfigReadLogDir();
+
+// Return a copy of the system's bin directory, taking proxy.config.bin_path into account. The caller MUST
+// release the result with ats_free().
+char * RecConfigReadBinDir();
+
+// Return a copy of a configuration file that is relative to sysconfdir. The relative path to the configuration
+// file is specified in the configuration variable named by "file_variable". If the configuration variable has no
+// value, NULL is returned. The caller MUST release the result with ats_free().
+char * RecConfigReadConfigPath(const char * file_variable, const char * default_value = NULL);
+
+// Return a copy of the persistent stats file. This is $RUNTIMEDIR/records.snap.
+// The caller MUST release the result with ats_free().
+char * RecConfigReadPersistentStatsPath();
+
+// Test whether the named configuration value is overridden by an environment variable. Return either
+// the overridden value, or the original value. Caller MUST NOT free the result.
+const char * RecConfigOverrideFromEnvironment(const char * name, const char * value);
+
+//-------------------------------------------------------------------------
+// Stat Registration
+//-------------------------------------------------------------------------
+int _RecRegisterStatInt(RecT rec_type, const char *name, RecInt data_default, RecPersistT persist_type);
+#define RecRegisterStatInt(rec_type, name, data_default, persist_type) _RecRegisterStatInt((rec_type), (name), (data_default), REC_PERSISTENCE_TYPE(persist_type))
+
+int _RecRegisterStatFloat(RecT rec_type, const char *name, RecFloat data_default, RecPersistT persist_type);
+#define RecRegisterStatFloat(rec_type, name, data_default, persist_type) _RecRegisterStatFloat((rec_type), (name), (data_default), REC_PERSISTENCE_TYPE(persist_type))
+
+int _RecRegisterStatString(RecT rec_type, const char *name, RecString data_default, RecPersistT persist_type);
+#define RecRegisterStatString(rec_type, name, data_default, persist_type) _RecRegisterStatString((rec_type), (name), (data_default), REC_PERSISTENCE_TYPE(persist_type))
+
+int _RecRegisterStatCounter(RecT rec_type, const char *name, RecCounter data_default, RecPersistT persist_type);
+#define RecRegisterStatCounter(rec_type, name, data_default, persist_type) _RecRegisterStatCounter((rec_type), (name), (data_default), REC_PERSISTENCE_TYPE(persist_type))
+
+//-------------------------------------------------------------------------
+// Config Registration
+//-------------------------------------------------------------------------
+
+int RecRegisterConfigInt(RecT rec_type, const char *name,
+                         RecInt data_default, RecUpdateT update_type,
+                         RecCheckT check_type, const char *ccheck_regex, RecAccessT access_type = RECA_NULL);
+
+int RecRegisterConfigFloat(RecT rec_type, const char *name,
+                           RecFloat data_default, RecUpdateT update_type,
+                           RecCheckT check_type, const char *check_regex, RecAccessT access_type = RECA_NULL);
+
+int RecRegisterConfigString(RecT rec_type, const char *name,
+                            const char *data_default, RecUpdateT update_type,
+                            RecCheckT check_type, const char *check_regex, RecAccessT access_type = RECA_NULL);
+
+int RecRegisterConfigCounter(RecT rec_type, const char *name,
+                             RecCounter data_default, RecUpdateT update_type,
+                             RecCheckT check_type, const char *check_regex, RecAccessT access_type = RECA_NULL);
+
+//-------------------------------------------------------------------------
+// Config Change Notification
+//-------------------------------------------------------------------------
+
+int RecLinkConfigInt(const char *name, RecInt * rec_int);
+int RecLinkConfigInt32(const char *name, int32_t * p_int32);
+int RecLinkConfigUInt32(const char *name, uint32_t * p_uint32);
+int RecLinkConfigFloat(const char *name, RecFloat * rec_float);
+int RecLinkConfigCounter(const char *name, RecCounter * rec_counter);
+int RecLinkConfigString(const char *name, RecString * rec_string);
+int RecLinkConfigByte(const char *name, RecByte * rec_byte);
+int RecLinkConfigBool(const char *name, RecBool * rec_byte);
+
+int RecRegisterConfigUpdateCb(const char *name, RecConfigUpdateCb update_cb, void *cookie);
+int RecRegisterRawStatUpdateFunc(const char *name, RecRawStatBlock * rsb, int id, RecStatUpdateFunc update_func, void *cookie);
+
+
+//-------------------------------------------------------------------------
+// Record Reading/Writing
+//-------------------------------------------------------------------------
+
+// WARNING!  Avoid deadlocks by calling the following set/get calls
+// with the appropiate locking conventions.  If you're calling these
+// functions from a configuration update callback (RecConfigUpdateCb),
+// be sure to set 'lock' to 'false' as the hash-table rwlock has
+// already been taken out for the callback.
+
+// RecSetRecordConvert -> WebMgmtUtils.cc::varSetFromStr()
+int RecSetRecordConvert(const char *name, const RecString rec_string, bool lock = true, bool inc_version = true);
+int RecSetRecordInt(const char *name, RecInt rec_int, bool lock = true, bool inc_version = true);
+int RecSetRecordFloat(const char *name, RecFloat rec_float, bool lock = true, bool inc_version = true);
+int RecSetRecordString(const char *name, const RecString rec_string, bool lock = true, bool inc_version = true);
+int RecSetRecordCounter(const char *name, RecCounter rec_counter, bool lock = true, bool inc_version = true);
+
+int RecGetRecordInt(const char *name, RecInt * rec_int, bool lock = true);
+int RecGetRecordFloat(const char *name, RecFloat * rec_float, bool lock = true);
+int RecGetRecordString(const char *name, char *buf, int buf_len, bool lock = true);
+int RecGetRecordString_Xmalloc(const char *name, RecString * rec_string, bool lock = true);
+int RecGetRecordCounter(const char *name, RecCounter * rec_counter, bool lock = true);
+// Convenience to allow us to treat the RecInt as a single byte internally
+int RecGetRecordByte(const char *name, RecByte * rec_byte, bool lock = true);
+// Convenience to allow us to treat the RecInt as a bool internally
+int RecGetRecordBool(const char *name, RecBool * rec_byte, bool lock = true);
+
+//------------------------------------------------------------------------
+// Record Attributes Reading
+//------------------------------------------------------------------------
+int RecGetRecordType(const char *name, RecT * rec_type, bool lock = true);
+int RecGetRecordDataType(const char *name, RecDataT * data_type, bool lock = true);
+int RecGetRecordPersistenceType(const char *name, RecPersistT * persist_type, bool lock = true);
+int RecGetRecordOrderAndId(const char *name, int *order, int *id, bool lock = true);
+
+int RecGetRecordUpdateType(const char *name, RecUpdateT * update_type, bool lock = true);
+int RecGetRecordCheckType(const char *name, RecCheckT * check_type, bool lock = true);
+int RecGetRecordCheckExpr(const char *name, char **check_expr, bool lock = true);
+int RecGetRecordDefaultDataString_Xmalloc(char *name, char **buf, bool lock = true);
+
+int RecGetRecordAccessType(const char *name, RecAccessT * secure, bool lock = true);
+int RecSetRecordAccessType(const char *name, RecAccessT secure, bool lock = true);
+
+void RecGetRecordTree(char *subtree = NULL);
+void RecGetRecordList(char *, char ***, int *);
+int RecGetRecordPrefix_Xmalloc(char *prefix, char **result, int *result_len);
+
+
+//------------------------------------------------------------------------
+// Signal and Alarms
+//------------------------------------------------------------------------
+void RecSignalManager(int, const char *);
+
+
+//-------------------------------------------------------------------------
+// Backwards Compatibility Items (REC_ prefix)
+//-------------------------------------------------------------------------
+#define REC_ReadConfigInt32(_var,_config_var_name) do { \
+  RecInt tmp = 0; \
+  RecGetRecordInt(_config_var_name, (RecInt*) &tmp); \
+  _var = (int32_t)tmp; \
+} while (0)
+
+#define REC_ReadConfigInteger(_var,_config_var_name) do { \
+  RecInt tmp = 0; \
+  RecGetRecordInt(_config_var_name, &tmp); \
+  _var = tmp; \
+} while (0)
+
+#define REC_ReadConfigFloat(_var,_config_var_name) do { \
+  RecFloat tmp = 0; \
+  RecGetRecordFloat(_config_var_name, &tmp); \
+  _var = tmp; \
+} while (0)
+
+#define REC_ReadConfigStringAlloc(_var,_config_var_name) \
+  RecGetRecordString_Xmalloc(_config_var_name, (RecString*)&_var)
+
+#define REC_ReadConfigString(_var, _config_var_name, _len) \
+  RecGetRecordString(_config_var_name, _var, _len)
+
+#define REC_RegisterConfigUpdateFunc(_config_var_name, func, flag) \
+  RecRegisterConfigUpdateCb(_config_var_name, func, flag)
+
+#define REC_EstablishStaticConfigInteger(_var, _config_var_name) do { \
+  RecLinkConfigInt(_config_var_name, &_var); \
+  _var = (int64_t)REC_ConfigReadInteger(_config_var_name); \
+} while (0)
+
+#define REC_EstablishStaticConfigInt32(_var, _config_var_name) do { \
+  RecLinkConfigInt32(_config_var_name, &_var); \
+  _var = (int32_t)REC_ConfigReadInteger(_config_var_name); \
+} while (0)
+
+#define REC_EstablishStaticConfigInt32U(_var, _config_var_name) do { \
+  RecLinkConfigUInt32(_config_var_name, &_var); \
+  _var = (int32_t)REC_ConfigReadInteger(_config_var_name); \
+} while (0)
+
+/*
+ * RecLinkConfigString allocates the RecString and stores the ptr to it (&var).
+ * So before changing _var (the RecString) we have to free the original one.
+ * Really, we somehow need to know whether RecLinkConfigString allocated _var.
+ * For now, we're using the return value to indicate this, even though it's
+ * not always the case.  If we're wrong, we'll leak the RecString.
+ */
+#define REC_EstablishStaticConfigStringAlloc(_var, _config_var_name) do { \
+  if (RecLinkConfigString(_config_var_name, &_var) == REC_ERR_OKAY) \
+    ats_free(_var);                                                    \
+  _var = (RecString)REC_ConfigReadString(_config_var_name); \
+} while (0)
+
+#define REC_EstablishStaticConfigFloat(_var, _config_var_name) do { \
+  RecLinkConfigFloat(_config_var_name, &_var); \
+  _var = (RecFloat)REC_ConfigReadFloat(_config_var_name); \
+} while (0)
+
+// Allow to treat our "INT" configs as a byte type internally. Note
+// that the byte type is just a wrapper around RECD_INT.
+#define REC_EstablishStaticConfigByte(_var, _config_var_name) do { \
+    RecLinkConfigByte(_config_var_name, &_var); \
+    _var = (RecByte)REC_ConfigReadInteger(_config_var_name);    \
+  } while (0)
+
+// Allow to treat our "INT" configs as a bool type internally. Note
+// that the bool type is just a wrapper around RECD_INT.
+#define REC_EstablishStaticConfigBool(_var, _config_var_name) do { \
+    RecLinkConfigBool(_config_var_name, &_var); \
+    _var = 0 != REC_ConfigReadInteger(_config_var_name);    \
+  } while (0)
+
+RecInt REC_ConfigReadInteger(const char *name);
+char *REC_ConfigReadString(const char *name);
+RecFloat REC_ConfigReadFloat(const char *name);
+RecCounter REC_ConfigReadCounter(const char *name);
+
+// MGMT2 Marco's -- converting lmgmt->record_data->readXXX
+RecInt REC_readInteger(const char *name, bool * found, bool lock = true);
+RecFloat REC_readFloat(char *name, bool * found, bool lock = true);
+RecCounter REC_readCounter(char *name, bool * found, bool lock = true);
+RecString REC_readString(const char *name, bool * found, bool lock = true);
+
+//------------------------------------------------------------------------
+// Clear Statistics
+//------------------------------------------------------------------------
+int RecResetStatRecord(const char *name);
+int RecResetStatRecord(RecT type = RECT_NULL, bool all = false);
+
+
+//------------------------------------------------------------------------
+// Set RecRecord attributes
+//------------------------------------------------------------------------
+int RecSetSyncRequired(char *name, bool lock = true);
+
+
+//------------------------------------------------------------------------
+// Signal Alarm/Warning/Error
+//------------------------------------------------------------------------
+#define REC_SignalManager        RecSignalManager
+#define REC_SignalWarning(_n,_d) { Warning("%s", _d); RecSignalManager(_n,_d); }
+#define REC_SignalError(_buf, _already)  {                                \
+  if(_already == false)                                                   \
+	REC_SignalManager(REC_SIGNAL_CONFIG_ERROR, _buf);                 \
+  _already = true;                                                        \
+  Warning("%s", _buf);                                                    \
+}
+
+
+//------------------------------------------------------------------------
+// Manager Callback
+//------------------------------------------------------------------------
+typedef void *(*RecManagerCb) (void *opaque_cb_data, char *data_raw, int data_len);
+int RecRegisterManagerCb(int _signal, RecManagerCb _fn, void *_data = NULL);
+
+void RecResizeAdditional(int add);
+
+#endif
diff --git a/lib/records/I_RecDefs.h b/lib/records/I_RecDefs.h
new file mode 100644
index 00000000..d423cecc
--- /dev/null
+++ b/lib/records/I_RecDefs.h
@@ -0,0 +1,204 @@
+/** @file
+
+  Public Rec defines and types
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_DEFS_H_
+#define _I_REC_DEFS_H_
+
+#include "Compatability.h"
+#include "ink_mutex.h"
+#include "ink_rwlock.h"
+#include "I_RecMutex.h"
+
+#define STAT_PROCESSOR
+
+
+//-------------------------------------------------------------------------
+// Error Values
+//-------------------------------------------------------------------------
+enum RecErrT
+{
+  REC_ERR_FAIL = -1,
+  REC_ERR_OKAY = 0
+};
+
+
+//-------------------------------------------------------------------------
+// Types
+//-------------------------------------------------------------------------
+#define RecStringNull NULL
+
+typedef int64_t RecInt;
+typedef float RecFloat;
+typedef char *RecString;
+typedef const char *RecStringConst;
+typedef int64_t RecCounter;
+typedef int8_t RecByte;
+typedef bool RecBool;
+
+enum RecT
+{
+  RECT_NULL     = 0x00,
+  RECT_CONFIG   = 0x01,
+  RECT_PROCESS  = 0x02,
+  RECT_NODE     = 0x04,
+  RECT_CLUSTER  = 0x08,
+  RECT_LOCAL    = 0x10,
+  RECT_PLUGIN   = 0x20,
+  RECT_ALL      = 0x3F
+};
+
+enum RecDataT
+{
+  RECD_NULL = 0,
+  RECD_INT,
+  RECD_FLOAT,
+  RECD_STRING,
+  RECD_COUNTER,
+
+#if defined(STAT_PROCESSOR)
+  RECD_CONST,               // Added for the StatProcessor, store as RECD_FLOAT
+  RECD_FX,                  // Added for the StatProcessor, store as RECD_INT
+#endif
+  RECD_MAX
+};
+
+enum RecPersistT
+{
+  RECP_NULL,
+  RECP_PERSISTENT,
+  RECP_NON_PERSISTENT
+};
+
+// RECP_NULL should never be used by callers of RecRegisterStat*(). You have to decide
+// whether to persist stats or not. The template goop below make sure that passing RECP_NULL
+// is a very ugle compile-time error.
+
+namespace rec {
+namespace detail {
+template <RecPersistT>
+struct is_valid_persistence;
+
+template<>
+struct is_valid_persistence<RECP_PERSISTENT>
+{
+  static const RecPersistT value = RECP_PERSISTENT;
+};
+
+template<>
+struct is_valid_persistence<RECP_NON_PERSISTENT>
+{
+  static const RecPersistT value = RECP_NON_PERSISTENT;
+};
+
+}}
+
+#define REC_PERSISTENCE_TYPE(P) rec::detail::is_valid_persistence<P>::value
+
+enum RecUpdateT
+{
+  RECU_NULL,                    // default: don't know the behavior
+  RECU_DYNAMIC,                 // config can be updated dynamically w/ traffic_line -x
+  RECU_RESTART_TS,              // config requires TS to be restarted to take effect
+  RECU_RESTART_TM,              // config requires TM/TS to be restarted to take effect
+  RECU_RESTART_TC               // config requires TC/TM/TS to be restarted to take effect
+};
+
+enum RecCheckT
+{
+  RECC_NULL,                    // default: no check type defined
+  RECC_STR,                     // config is a string
+  RECC_INT,                     // config is an integer with a range
+  RECC_IP                       // config is an ip address
+};
+
+enum RecModeT
+{
+  RECM_NULL,
+  RECM_CLIENT,
+  RECM_SERVER,
+  RECM_STAND_ALONE
+};
+
+enum RecAccessT
+{
+  RECA_NULL,
+  RECA_NO_ACCESS,
+  RECA_READ_ONLY
+};
+
+
+//-------------------------------------------------------------------------
+// Data Union
+//-------------------------------------------------------------------------
+union RecData
+{
+  RecInt rec_int;
+  RecFloat rec_float;
+  RecString rec_string;
+  RecCounter rec_counter;
+};
+
+
+//-------------------------------------------------------------------------
+// RawStat Structures
+//-------------------------------------------------------------------------
+struct RecRawStat
+{
+  int64_t sum;
+  int64_t count;
+  // XXX - these will waist some space because they are only needed for the globals
+  // this is a fix for bug TS-162, so I am trying to do as few code changes as
+  // possible, this should be revisted -bcall
+  int64_t last_sum; // value from the last global sync
+  int64_t last_count; // value from the last global sync
+  uint32_t version;
+};
+
+
+// WARNING!  It's advised that developers do not modify the contents of
+// the RecRawStatBlock.  ^_^
+struct RecRawStatBlock
+{
+  off_t ethr_stat_offset;   // thread local raw-stat storage
+  RecRawStat **global;      // global raw-stat storage (ptr to RecRecord)
+  int num_stats;            // number of stats in this block
+  int max_stats;            // maximum number of stats for this block
+  ink_mutex mutex;
+};
+
+
+//-------------------------------------------------------------------------
+// RecCore Callback Types
+//-------------------------------------------------------------------------
+typedef int (*RecConfigUpdateCb) (const char *name, RecDataT data_type, RecData data, void *cookie);
+typedef int (*RecStatUpdateFunc) (const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id, void *cookie);
+typedef int (*RecRawStatSyncCb) (const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id);
+
+
+//-------------------------------------------------------------------------
+// RecTree Defines
+//-------------------------------------------------------------------------
+#define REC_VAR_NAME_DELIMITOR '.'
+#define REC_VAR_NAME_WILDCARD  '*'
+
+#endif
diff --git a/lib/records/I_RecEvents.h b/lib/records/I_RecEvents.h
new file mode 100644
index 00000000..7454b480
--- /dev/null
+++ b/lib/records/I_RecEvents.h
@@ -0,0 +1,42 @@
+/** @file
+
+  Public REC_EVENT defines
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_EVENTS_H_
+#define _I_REC_EVENTS_H_
+
+// copy from mgmt/BaseManager.h
+#define REC_EVENT_SYNC_KEY              10000
+#define REC_EVENT_SHUTDOWN              10001
+#define REC_EVENT_RESTART               10002
+#define REC_EVENT_BOUNCE                10003
+#define REC_EVENT_CLEAR_STATS           10004
+#define REC_EVENT_CONFIG_FILE_UPDATE    10005
+#define REC_EVENT_PLUGIN_CONFIG_UPDATE  10006
+#define REC_EVENT_HTTP_CLUSTER_DELTA    10007
+#define REC_EVENT_ROLL_LOG_FILES        10008
+#define REC_EVENT_LIBRECORDS            10009
+#define REC_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION   10010
+
+#define REC_EVENT_CACHE_DISK_CONTROL     10011
+
+#endif
diff --git a/lib/records/I_RecHttp.h b/lib/records/I_RecHttp.h
new file mode 100644
index 00000000..c121dfea
--- /dev/null
+++ b/lib/records/I_RecHttp.h
@@ -0,0 +1,420 @@
+/** @file
+
+  HTTP configuration support.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_HTTP_H
+#define _I_REC_HTTP_H
+
+#include <ts/ink_inet.h>
+#include <ts/ink_resolver.h>
+#include <ts/apidefs.h>
+#include <ts/Vec.h>
+#include <ts/apidefs.h>
+
+/// Load default inbound IP addresses from the configuration file.
+void RecHttpLoadIp(
+  char const* name,    ///< Name of value in configuration file.
+  IpAddr& ip4, ///< [out] IPv4 address.
+  IpAddr& ip6  ///< [out] Ipv6 address.
+);
+
+/** A set of session protocols.
+    This depends on using @c SessionProtocolNameRegistry to get the indices.
+*/
+class SessionProtocolSet {
+  typedef SessionProtocolSet self; ///< Self reference type.
+  /// Storage for the set - a bit vector.
+  uint32_t m_bits;
+public:
+  // The right way.
+  //  static int const MAX = sizeof(m_bits) * CHAR_BIT;
+  // The RHEL5/gcc 4.1.2 way
+  static int const MAX = sizeof(uint32_t) * 8;
+  /// Default constructor.
+  /// Constructs and empty set.
+  SessionProtocolSet() : m_bits(0) { }
+
+  uint32_t indexToMask(int idx) const {
+    return 0 <= idx && idx < static_cast<int>(MAX)
+      ? static_cast<uint32_t>(1) << idx
+      : 0
+      ;
+  }
+
+  /// Mark the protocol at @a idx as present.
+  void markIn(int idx) { m_bits |= this->indexToMask(idx); }
+  /// Mark all the protocols in @a that as present in @a this.
+  void markIn(self const& that) { m_bits |= that.m_bits; }
+  /// Mark the protocol at a idx as not present.
+  void markOut(int idx) { m_bits &= ~this->indexToMask(idx); }
+  /// Mark the protocols in @a that as not in @a this.
+  void markOut(self const& that) { m_bits &= ~(that.m_bits); }
+  /// Test if a protocol is in the set.
+  bool contains(int idx) const { return 0 != (m_bits & this->indexToMask(idx)); }
+  /// Test if all the protocols in @a that are in @a this protocol set.
+  bool contains(self const& that) const { return that.m_bits == (that.m_bits & m_bits); }
+  /// Mark all possible protocols.
+  void markAllIn() { m_bits = ~static_cast<uint32_t>(0); }
+  /// Clear all protocols.
+  void markAllOut() { m_bits = 0; }
+
+  /// Check for intersection.
+  bool intersects(self const& that) { return 0 != (m_bits & that.m_bits); }
+
+  /// Check for empty set.
+  bool isEmpty() const { return m_bits == 0; }
+
+  /// Equality (identical sets).
+  bool operator == (self const& that) const { return m_bits == that.m_bits; }
+};
+
+// Predefined sets of protocols, useful for configuration.
+extern SessionProtocolSet HTTP_PROTOCOL_SET;
+extern SessionProtocolSet HTTP2_PROTOCOL_SET;
+extern SessionProtocolSet SPDY_PROTOCOL_SET;
+extern SessionProtocolSet DEFAULT_NON_TLS_SESSION_PROTOCOL_SET;
+extern SessionProtocolSet DEFAULT_TLS_SESSION_PROTOCOL_SET;
+
+/** Registered session protocol names.
+
+    We do this to avoid lots of string compares. By normalizing the
+    string names we can just compare their indices in this table.
+
+    @internal To simplify the implementation we limit the maximum
+    number of strings to 32. That will be sufficient for the forseeable
+    future. We can come back to this if it ever becomes a problem.
+
+    @internal Because we have so few strings we just use a linear search.
+    If the size gets much larger we should consider doing something more
+    clever.
+*/
+class SessionProtocolNameRegistry {
+ public:
+  static int const MAX  = SessionProtocolSet::MAX; ///< Maximum # of registered names.
+  static int const INVALID = -1; ///< Normalized invalid index value.
+
+  /// Default constructor.
+  /// Creates empty registry with no names.
+  SessionProtocolNameRegistry();
+
+  /// Destructor.
+  /// Cleans up strings.
+  ~SessionProtocolNameRegistry();
+
+  /** Get the index for @a name, registering it if needed.
+      The name is copied internally.
+      @return The index for the registered @a name.
+  */
+  int toIndex(char const* name);
+
+  /** Get the index for @a name, registering it if needed.
+      The caller @b guarantees @a name is persistent and immutable.
+      @return The index for the registered @a name.
+  */
+  int toIndexConst(char const* name);
+
+  /** Convert a @a name to an index.
+      @return The index for @a name or @c INVALID if it is not registered.
+  */
+  int indexFor(char const* name) const;
+
+  /** Convert an @a index to the corresponding name.
+      @return A pointer to the name or @c NULL if the index isn't registered.
+  */
+  char const* nameFor(int index) const;
+
+  /// Mark protocols as present in @a sp_set based on the names in @a value.
+  /// The names can be separated by ;/|,: and space.
+  /// @internal This is separated out to make it easy to access from the plugin API
+  /// implementation.
+  void markIn(char const* value, SessionProtocolSet& sp_set);
+
+ protected:
+  unsigned int m_n; ///< Index of first unused slot.
+  char const* m_names[MAX]; ///< Pointers to registered names.
+  uint8_t m_flags[MAX]; ///< Flags for each name.
+
+  static uint8_t const F_ALLOCATED = 0x1; ///< Flag for allocated by this instance.
+};
+
+extern SessionProtocolNameRegistry globalSessionProtocolNameRegistry;
+
+/** Description of an proxy port.
+
+    This consolidates the options needed for proxy ports, both data
+    and parsing. It provides a static global set of ports for
+    convenience although it can be used with an externally provided
+    set.
+
+    Options are described by a colon separated list of keywords
+    without spaces. The options are applied in left to right order. If
+    options do not conflict the order is irrelevant.
+
+    IPv6 addresses must be enclosed by brackets. Unfortunate but colon is
+    so overloaded there's no other option.
+ */
+struct HttpProxyPort {
+private:
+  typedef HttpProxyPort self; ///< Self reference type.
+public:
+  /// Explicitly supported collection of proxy ports.
+  typedef Vec<self> Group;
+
+  /// Type of transport on the connection.
+  enum TransportType {
+    TRANSPORT_DEFAULT = 0, ///< Default (normal HTTP).
+    TRANSPORT_COMPRESSED, ///< Compressed HTTP.
+    TRANSPORT_BLIND_TUNNEL, ///< Blind tunnel (no processing).
+    TRANSPORT_SSL, ///< SSL connection.
+    TRANSPORT_PLUGIN /// < Protocol plugin connection
+  };
+
+  int m_fd; ///< Pre-opened file descriptor if present.
+  TransportType m_type; ///< Type of connection.
+  in_port_t m_port; ///< Port on which to listen.
+  uint8_t m_family; ///< IP address family.
+  /// True if inbound connects (from client) are transparent.
+  bool m_inbound_transparent_p;
+  /// True if outbound connections (to origin servers) are transparent.
+  bool m_outbound_transparent_p;
+  // True if transparent pass-through is enabled on this port.
+  bool m_transparent_passthrough;
+  /// Local address for inbound connections (listen address).
+  IpAddr m_inbound_ip;
+  /// Local address for outbound connections (to origin server).
+  IpAddr m_outbound_ip4;
+  /// Local address for outbound connections (to origin server).
+  IpAddr m_outbound_ip6;
+  /// Ordered preference for DNS resolution family ( @c FamilyPrefence )
+  /// A value of @c PREFER_NONE indicates that entry and subsequent ones
+  /// are invalid.
+  HostResPreferenceOrder m_host_res_preference;
+  /// Static preference list that is the default value.
+  static HostResPreferenceOrder const DEFAULT_HOST_RES_PREFERENCE;
+  /// Enabled session transports for this port.
+  SessionProtocolSet m_session_protocol_preference;
+
+  /// Default constructor.
+  HttpProxyPort();
+
+  /** Select the local outbound address object.
+
+      @return The IP address for @a family
+  */
+  IpAddr& outboundIp(
+    uint16_t family ///< IP address family.
+  );
+
+  /// Check for SSL port.
+  bool isSSL() const;
+
+  /// Check for SSL port.
+  bool isPlugin() const;
+
+  /// Process options text.
+  /// @a opts should not contain any whitespace, only the option string.
+  /// This object's internal state is updated as specified by @a opts.
+  /// @return @c true if a port option was successfully processed, @c false otherwise.
+  bool processOptions(
+    char const* opts ///< String containing the options.
+  );
+
+  /** Global instance.
+
+      This is provided because most of the work with this data is used as a singleton
+      and it's handy to encapsulate it here.
+  */
+  static Vec<self>& global();
+
+  /// Check for SSL ports.
+  /// @return @c true if any port in @a ports is an SSL port.
+  static bool hasSSL(
+		     Group const& ports ///< Ports to check.
+		     );
+
+  /// Check for SSL ports.
+  /// @return @c true if any global port is an SSL port.
+  static bool hasSSL();
+
+  /** Load all relevant configuration data.
+
+      This is hardwired to look up the appropriate values in the
+      configuration files. It clears @a ports and then loads all found
+      values in to it.
+
+      @return @c true if at least one valid port description was
+      found, @c false if none.
+  */
+  static bool loadConfig(
+    Vec<self>& ports ///< Destination for found port data.
+  );
+
+  /** Load all relevant configuration data into the global ports.
+
+      @return @c true if at least one valid port description was
+      found, @c false if none.
+  */
+  static bool loadConfig();
+
+  /** Load ports from a value string.
+
+      Load ports from single string with port descriptors. Ports
+      found are added to @a ports. @a value may safely be @c NULL or empty.
+
+      @note This is used primarily internally but is available if needed.
+      @return @c true if a valid port was found, @c false if none.
+  */
+  static bool loadValue(
+    Vec<self>& ports, ///< Destination for found port data.
+    char const* value ///< Source port data.
+  );
+
+  /** Load ports from a value string into the global ports.
+
+      Load ports from single string of port descriptors into the
+      global set of ports. @a value may safely be @c NULL or empty.
+
+      @return @c true if a valid port was found, @c false if none.
+  */
+  static bool loadValue(
+    char const* value ///< Source port data.
+  );
+
+  /// Load default value if @a ports is empty.
+  /// @return @c true if the default was needed / loaded.
+  static bool loadDefaultIfEmpty(
+    Vec<self>& ports ///< Load target.
+  );
+
+  /// Load default value into the global set if it is empty.
+  /// @return @c true if the default was needed / loaded.
+  static bool loadDefaultIfEmpty();
+
+  /** Find an HTTP port in @a ports.
+      If @a family is specified then only ports for that family
+      are checked.
+      @return The port if found, @c NULL if not.
+  */
+  static self* findHttp(
+			Group const& ports, ///< Group to search.
+			uint16_t family = AF_UNSPEC  ///< Desired address family.
+			);
+
+  /** Find an HTTP port in the global ports.
+      If @a family is specified then only ports for that family
+      are checked.
+      @return The port if found, @c NULL if not.
+  */
+  static self* findHttp(uint16_t family = AF_UNSPEC);
+
+  /** Create text description to be used for inter-process access.
+      Prints the file descriptor and then any options.
+
+      @return The number of characters used for the description.
+  */
+  int print(
+    char* out, ///< Output string.
+    size_t n ///< Maximum output length.
+  );
+
+  static char const* const PORTS_CONFIG_NAME; ///< New unified port descriptor.
+
+  /// Default value if no other values can be found.
+  static char const* const DEFAULT_VALUE;
+
+  // Keywords (lower case versions, but compares should be case insensitive)
+  static char const* const OPT_FD_PREFIX; ///< Prefix for file descriptor value.
+  static char const* const OPT_OUTBOUND_IP_PREFIX; ///< Prefix for inbound IP address.
+  static char const* const OPT_INBOUND_IP_PREFIX; ///< Prefix for outbound IP address.
+  static char const* const OPT_IPV6; ///< IPv6.
+  static char const* const OPT_IPV4; ///< IPv4
+  static char const* const OPT_TRANSPARENT_INBOUND; ///< Inbound transparent.
+  static char const* const OPT_TRANSPARENT_OUTBOUND; ///< Outbound transparent.
+  static char const* const OPT_TRANSPARENT_FULL; ///< Full transparency.
+  static char const* const OPT_TRANSPARENT_PASSTHROUGH; ///< Pass-through non-HTTP.
+  static char const* const OPT_SSL; ///< SSL (experimental)
+  static char const* const OPT_PLUGIN; ///< Protocol Plugin handle (experimental)
+  static char const* const OPT_BLIND_TUNNEL; ///< Blind tunnel.
+  static char const* const OPT_COMPRESSED; ///< Compressed.
+  static char const* const OPT_HOST_RES_PREFIX; ///< Set DNS family preference.
+  static char const* const OPT_PROTO_PREFIX; ///< Transport layer protocols.
+
+  static Vec<self>& m_global; ///< Global ("default") data.
+
+protected:
+  /// Process @a value for DNS resolution family preferences.
+  void processFamilyPreference(char const* value);
+  /// Process @a value for session protocol preferences.
+  void processSessionProtocolPreference(char const* value);
+
+  /** Check a prefix option and find the value.
+      @return The address of the start of the value, or @c NULL if the prefix doesn't match.
+  */
+
+  char const* checkPrefix( char const* src ///< Input text
+                         , char const* prefix ///< Keyword prefix
+                         , size_t prefix_len ///< Length of keyword prefix.
+                         );
+};
+
+inline bool HttpProxyPort::isSSL() const { return TRANSPORT_SSL == m_type; }
+inline bool HttpProxyPort::isPlugin() const { return TRANSPORT_PLUGIN == m_type; }
+
+inline IpAddr&
+HttpProxyPort::outboundIp(uint16_t family) {
+  static IpAddr invalid; // dummy to make compiler happy about return.
+  if (AF_INET == family) return m_outbound_ip4;
+  else if (AF_INET6 == family) return m_outbound_ip6;
+  ink_release_assert(!"Invalid family for outbound address on proxy port.");
+  return invalid; // never happens but compiler insists.
+}
+
+inline bool
+HttpProxyPort::loadValue(char const* value) {
+  return self::loadValue(m_global, value);
+}
+inline bool
+HttpProxyPort::loadConfig() {
+  return self::loadConfig(m_global);
+}
+inline bool
+HttpProxyPort::loadDefaultIfEmpty() {
+  return self::loadDefaultIfEmpty(m_global);
+}
+inline Vec<HttpProxyPort>&
+HttpProxyPort::global() {
+  return m_global;
+}
+inline bool
+HttpProxyPort::hasSSL() {
+  return self::hasSSL(m_global);
+}
+inline HttpProxyPort* HttpProxyPort::findHttp(uint16_t family) {
+  return self::findHttp(m_global, family);
+}
+
+/** Session Protocol initialization.
+    This must be called before any proxy port parsing is done.
+*/
+extern void ts_session_protocol_well_known_name_indices_init();
+
+#endif // I_REC_HTTP_H
diff --git a/lib/records/I_RecLocal.h b/lib/records/I_RecLocal.h
new file mode 100644
index 00000000..89c23133
--- /dev/null
+++ b/lib/records/I_RecLocal.h
@@ -0,0 +1,37 @@
+/** @file
+
+  Public RecLocal declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_LOCAL_H_
+#define _I_REC_LOCAL_H_
+
+#include "I_RecCore.h"
+
+//-------------------------------------------------------------------------
+// Initialization
+//-------------------------------------------------------------------------
+
+int RecLocalInit(Diags * diags = NULL);
+int RecLocalInitMessage();
+int RecLocalStart();
+
+#endif
diff --git a/lib/records/I_RecMutex.h b/lib/records/I_RecMutex.h
new file mode 100644
index 00000000..ace1d26f
--- /dev/null
+++ b/lib/records/I_RecMutex.h
@@ -0,0 +1,47 @@
+/** @file
+
+  Public RecMutex declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_MUTEX_H_
+#define _I_REC_MUTEX_H_
+
+#include "ink_mutex.h"
+#include "ink_thread.h"
+
+/**
+  A wrapper to ink_mutex class. It allows multiple acquire of mutex lock
+  by the SAME thread. This is a trimmed down version of ProxyMutex.
+
+*/
+struct RecMutex
+{
+  size_t nthread_holding;
+  ink_thread thread_holding;
+  ink_mutex the_mutex;
+};
+
+int rec_mutex_init(RecMutex * m, const char *name = NULL);
+int rec_mutex_destroy(RecMutex * m);
+int rec_mutex_acquire(RecMutex * m);
+int rec_mutex_release(RecMutex * m);
+
+#endif
diff --git a/lib/records/I_RecProcess.h b/lib/records/I_RecProcess.h
new file mode 100644
index 00000000..123041e7
--- /dev/null
+++ b/lib/records/I_RecProcess.h
@@ -0,0 +1,164 @@
+/** @file
+
+  Public RecProcess declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_PROCESS_H_
+#define _I_REC_PROCESS_H_
+
+#include "I_RecCore.h"
+#include "I_EventSystem.h"
+
+
+//-------------------------------------------------------------------------
+// Initialization/Starting
+//-------------------------------------------------------------------------
+int RecProcessInit(RecModeT mode_type, Diags * diags = NULL);
+int RecProcessInitMessage(RecModeT mode_type);
+int RecProcessStart(void);
+
+//-------------------------------------------------------------------------
+// Setters for manipulating internal sleep intervals
+//-------------------------------------------------------------------------
+void RecProcess_set_raw_stat_sync_interval_ms(int ms);
+void RecProcess_set_config_update_interval_ms(int ms);
+void RecProcess_set_remote_sync_interval_ms(int ms);
+
+//-------------------------------------------------------------------------
+// RawStat Registration
+//-------------------------------------------------------------------------
+RecRawStatBlock *RecAllocateRawStatBlock(int num_stats);
+
+int _RecRegisterRawStat(RecRawStatBlock * rsb, RecT rec_type, const char *name, RecDataT data_type, RecPersistT persist_type, int id, RecRawStatSyncCb sync_cb);
+#define RecRegisterRawStat(rsb, rec_type, name, data_type, persist_type, id, sync_cb) \
+  _RecRegisterRawStat((rsb), (rec_type), (name), (data_type), REC_PERSISTENCE_TYPE(persist_type), (id), (sync_cb))
+
+// RecRawStatRange* RecAllocateRawStatRange (int num_buckets);
+
+// int RecRegisterRawStatRange (RecRawStatRange *rsr,
+//                           RecT rec_type,
+//                           char *name,
+//                           RecPersistT persist_type,
+//                           int id,
+//                           RecInt min,
+//                           RecInt max);
+
+
+//-------------------------------------------------------------------------
+// Predefined RawStat Callbacks
+//-------------------------------------------------------------------------
+int RecRawStatSyncSum(const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id);
+int RecRawStatSyncCount(const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id);
+int RecRawStatSyncAvg(const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id);
+int RecRawStatSyncHrTimeAvg(const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id);
+int RecRawStatSyncIntMsecsToFloatSeconds(const char *name, RecDataT data_type,
+                                         RecData * data, RecRawStatBlock * rsb, int id);
+int RecRawStatSyncMHrTimeAvg(const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id);
+
+
+//-------------------------------------------------------------------------
+// RawStat Setting/Getting
+//-------------------------------------------------------------------------
+
+// Note: The following RecIncrRawStatXXX calls are fast and don't
+// require any ink_atomic_xxx64()'s to be executed.  Use these RawStat
+// functions over other RawStat functions whenever possible.
+inline int RecIncrRawStat(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t incr = 1);
+inline int RecIncrRawStatSum(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t incr = 1);
+inline int RecIncrRawStatCount(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t incr = 1);
+int RecIncrRawStatBlock(RecRawStatBlock * rsb, EThread * ethread, RecRawStat * stat_array);
+
+int RecSetRawStatSum(RecRawStatBlock * rsb, int id, int64_t data);
+int RecSetRawStatCount(RecRawStatBlock * rsb, int id, int64_t data);
+int RecSetRawStatBlock(RecRawStatBlock * rsb, RecRawStat * stat_array);
+
+int RecGetRawStatSum(RecRawStatBlock * rsb, int id, int64_t * data);
+int RecGetRawStatCount(RecRawStatBlock * rsb, int id, int64_t * data);
+
+
+//-------------------------------------------------------------------------
+// Global RawStat Items (e.g. same as above, but no thread-local behavior)
+//-------------------------------------------------------------------------
+int RecIncrGlobalRawStat(RecRawStatBlock * rsb, int id, int64_t incr = 1);
+int RecIncrGlobalRawStatSum(RecRawStatBlock * rsb, int id, int64_t incr = 1);
+int RecIncrGlobalRawStatCount(RecRawStatBlock * rsb, int id, int64_t incr = 1);
+
+int RecSetGlobalRawStatSum(RecRawStatBlock * rsb, int id, int64_t data);
+int RecSetGlobalRawStatCount(RecRawStatBlock * rsb, int id, int64_t data);
+
+int RecGetGlobalRawStatSum(RecRawStatBlock * rsb, int id, int64_t * data);
+int RecGetGlobalRawStatCount(RecRawStatBlock * rsb, int id, int64_t * data);
+
+RecRawStat *RecGetGlobalRawStatPtr(RecRawStatBlock * rsb, int id);
+int64_t *RecGetGlobalRawStatSumPtr(RecRawStatBlock * rsb, int id);
+int64_t *RecGetGlobalRawStatCountPtr(RecRawStatBlock * rsb, int id);
+
+
+//-------------------------------------------------------------------------
+// RecIncrRawStatXXX
+//-------------------------------------------------------------------------
+// inlined functions that are used very frequently.
+// FIXME: move it to Inline.cc
+inline RecRawStat *
+raw_stat_get_tlp(RecRawStatBlock * rsb, int id, EThread * ethread)
+{
+  ink_assert((id >= 0) && (id < rsb->max_stats));
+  if (ethread == NULL) {
+    ethread = this_ethread();
+  }
+  return (((RecRawStat *) ((char *) (ethread) + rsb->ethr_stat_offset)) + id);
+}
+
+inline int
+RecIncrRawStat(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t incr)
+{
+  RecRawStat *tlp = raw_stat_get_tlp(rsb, id, ethread);
+  tlp->sum += incr;
+  tlp->count += 1;
+  return REC_ERR_OKAY;
+}
+
+inline int
+RecDecrRawStat(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t decr)
+{
+  RecRawStat *tlp = raw_stat_get_tlp(rsb, id, ethread);
+  tlp->sum -= decr;
+  tlp->count += 1;
+  return REC_ERR_OKAY;
+}
+
+inline int
+RecIncrRawStatSum(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t incr)
+{
+  RecRawStat *tlp = raw_stat_get_tlp(rsb, id, ethread);
+  tlp->sum += incr;
+  return REC_ERR_OKAY;
+}
+
+inline int
+RecIncrRawStatCount(RecRawStatBlock * rsb, EThread * ethread, int id, int64_t incr)
+{
+  RecRawStat *tlp = raw_stat_get_tlp(rsb, id, ethread);
+  tlp->count += incr;
+  return REC_ERR_OKAY;
+}
+
+#endif /* !_I_REC_PROCESS_H_ */
diff --git a/lib/records/I_RecSignals.h b/lib/records/I_RecSignals.h
new file mode 100644
index 00000000..1461c45d
--- /dev/null
+++ b/lib/records/I_RecSignals.h
@@ -0,0 +1,48 @@
+/** @file
+
+  Public REC_SIGNAL defines
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _I_REC_SIGNALS_H_
+#define _I_REC_SIGNALS_H_
+
+// copy from mgmt/BaseManager.h
+#define REC_SIGNAL_PID                          0
+#define REC_SIGNAL_MACHINE_UP                   1
+#define REC_SIGNAL_MACHINE_DOWN                 2
+#define REC_SIGNAL_CONFIG_ERROR                 3
+#define REC_SIGNAL_SYSTEM_ERROR                 4
+#define REC_SIGNAL_LOG_SPACE_CRISIS             5
+#define REC_SIGNAL_CONFIG_FILE_READ             6
+#define REC_SIGNAL_CACHE_ERROR                  7
+#define REC_SIGNAL_CACHE_WARNING                8
+#define REC_SIGNAL_LOGGING_ERROR                9
+#define REC_SIGNAL_LOGGING_WARNING              10
+// Currently unused: 11
+#define REC_SIGNAL_PLUGIN_CONFIG_REG            12
+#define REC_SIGNAL_PLUGIN_ADD_REC               13
+#define REC_SIGNAL_PLUGIN_SET_CONFIG            14
+#define REC_SIGNAL_LOG_FILES_ROLLED             15
+#define REC_SIGNAL_LIBRECORDS                   16
+#define REC_SIGNAL_HTTP_CONGESTED_SERVER        20
+#define REC_SIGNAL_HTTP_ALLEVIATED_SERVER       21
+
+#endif
diff --git a/lib/records/Makefile.am b/lib/records/Makefile.am
new file mode 100644
index 00000000..8c9323b4
--- /dev/null
+++ b/lib/records/Makefile.am
@@ -0,0 +1,98 @@
+# Makefile.am for the lib/records
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/eventsystem \
+  -I$(top_srcdir)/iocore/utils \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/ts
+
+noinst_LIBRARIES = libreclocal.a librecprocess.a librec4cop.a
+
+libreclocal_a_CXXFLAGS = $(ink_with_modules_local)
+libreclocal_a_SOURCES = \
+  I_RecAlarms.h \
+  I_RecCore.h \
+  I_RecDefs.h \
+  I_RecEvents.h \
+  I_RecLocal.h \
+  I_RecMutex.h \
+  I_RecSignals.h \
+  P_RecFile.h \
+  P_RecCore.h \
+  P_RecCore.cc \
+  P_RecDefs.h \
+  P_RecLocal.h \
+  P_RecMessage.h \
+  P_RecTree.h \
+  P_RecUtils.h \
+  P_RecFile.h \
+  RecFile.cc \
+  RecCore.cc \
+  RecLocal.cc \
+  RecMessage.cc \
+  RecMutex.cc \
+  RecTree.cc \
+  I_RecHttp.h \
+  RecHttp.cc \
+  RecUtils.cc \
+  RecDebug.cc \
+  RecConfigParse.cc
+
+librecprocess_a_CXXFLAGS = $(ink_with_modules_process)
+librecprocess_a_SOURCES = \
+  I_RecAlarms.h \
+  I_RecCore.h \
+  I_RecDefs.h \
+  I_RecEvents.h \
+  I_RecMutex.h \
+  I_RecProcess.h \
+  I_RecSignals.h \
+  P_RecFile.h \
+  P_RecCore.h \
+  P_RecCore.cc \
+  P_RecDefs.h \
+  P_RecMessage.h \
+  P_RecProcess.h \
+  P_RecTree.h \
+  P_RecUtils.h \
+  P_RecFile.h \
+  RecFile.cc \
+  RecCore.cc \
+  RecMessage.cc \
+  RecMutex.cc \
+  RecProcess.cc \
+  RecTree.cc \
+  I_RecHttp.h \
+  RecHttp.cc \
+  RecUtils.cc \
+  RecDebug.cc \
+  RecConfigParse.cc
+
+
+librec4cop_a_CXXFLAGS = $(ink_with_modules_process)
+librec4cop_a_SOURCES = \
+  RecConfigParse.cc \
+  RecFile.cc \
+  RecDebug.cc
diff --git a/lib/records/Makefile.in b/lib/records/Makefile.in
new file mode 100644
index 00000000..5500e332
--- /dev/null
+++ b/lib/records/Makefile.in
@@ -0,0 +1,1348 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the lib/records
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = lib/records
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/ts
+
+noinst_LIBRARIES = libreclocal.a librecprocess.a librec4cop.a
+libreclocal_a_CXXFLAGS = $(ink_with_modules_local)
+libreclocal_a_SOURCES = \
+  I_RecAlarms.h \
+  I_RecCore.h \
+  I_RecDefs.h \
+  I_RecEvents.h \
+  I_RecLocal.h \
+  I_RecMutex.h \
+  I_RecSignals.h \
+  P_RecFile.h \
+  P_RecCore.h \
+  P_RecCore.cc \
+  P_RecDefs.h \
+  P_RecLocal.h \
+  P_RecMessage.h \
+  P_RecTree.h \
+  P_RecUtils.h \
+  P_RecFile.h \
+  RecFile.cc \
+  RecCore.cc \
+  RecLocal.cc \
+  RecMessage.cc \
+  RecMutex.cc \
+  RecTree.cc \
+  I_RecHttp.h \
+  RecHttp.cc \
+  RecUtils.cc \
+  RecDebug.cc \
+  RecConfigParse.cc
+
+librecprocess_a_CXXFLAGS = $(ink_with_modules_process)
+librecprocess_a_SOURCES = \
+  I_RecAlarms.h \
+  I_RecCore.h \
+  I_RecDefs.h \
+  I_RecEvents.h \
+  I_RecMutex.h \
+  I_RecProcess.h \
+  I_RecSignals.h \
+  P_RecFile.h \
+  P_RecCore.h \
+  P_RecCore.cc \
+  P_RecDefs.h \
+  P_RecMessage.h \
+  P_RecProcess.h \
+  P_RecTree.h \
+  P_RecUtils.h \
+  P_RecFile.h \
+  RecFile.cc \
+  RecCore.cc \
+  RecMessage.cc \
+  RecMutex.cc \
+  RecProcess.cc \
+  RecTree.cc \
+  I_RecHttp.h \
+  RecHttp.cc \
+  RecUtils.cc \
+  RecDebug.cc \
+  RecConfigParse.cc
+
+librec4cop_a_CXXFLAGS = $(ink_with_modules_process)
+librec4cop_a_SOURCES = \
+  RecConfigParse.cc \
+  RecFile.cc \
+  RecDebug.cc
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/records/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/records/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+librec4cop.a: $(librec4cop_a_OBJECTS) $(librec4cop_a_DEPENDENCIES) $(EXTRA_librec4cop_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f librec4cop.a
+	$(AM_V_AR)$(librec4cop_a_AR) librec4cop.a $(librec4cop_a_OBJECTS) $(librec4cop_a_LIBADD)
+	$(AM_V_at)$(RANLIB) librec4cop.a
+
+libreclocal.a: $(libreclocal_a_OBJECTS) $(libreclocal_a_DEPENDENCIES) $(EXTRA_libreclocal_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libreclocal.a
+	$(AM_V_AR)$(libreclocal_a_AR) libreclocal.a $(libreclocal_a_OBJECTS) $(libreclocal_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libreclocal.a
+
+librecprocess.a: $(librecprocess_a_OBJECTS) $(librecprocess_a_DEPENDENCIES) $(EXTRA_librecprocess_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f librecprocess.a
+	$(AM_V_AR)$(librecprocess_a_AR) librecprocess.a $(librecprocess_a_OBJECTS) $(librecprocess_a_LIBADD)
+	$(AM_V_at)$(RANLIB) librecprocess.a
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librec4cop_a-RecConfigParse.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librec4cop_a-RecDebug.Po@am__quote@
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+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librecprocess_a-RecMessage.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librecprocess_a-RecMutex.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librecprocess_a-RecProcess.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librecprocess_a-RecTree.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/librecprocess_a-RecUtils.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
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+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -MT librecprocess_a-RecUtils.obj -MD -MP -MF $(DEPDIR)/librecprocess_a-RecUtils.Tpo -c -o librecprocess_a-RecUtils.obj `if test -f 'RecUtils.cc'; then $(CYGPATH_W) 'RecUtils.cc'; else $(CYGPATH_W) '$(srcdir)/RecUtils.cc'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/librecprocess_a-RecUtils.Tpo $(DEPDIR)/librecprocess_a-RecUtils.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='RecUtils.cc' object='librecprocess_a-RecUtils.obj' libtool=no @AMDEPBACKSLASH@
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+
+librecprocess_a-RecDebug.o: RecDebug.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -MT librecprocess_a-RecDebug.o -MD -MP -MF $(DEPDIR)/librecprocess_a-RecDebug.Tpo -c -o librecprocess_a-RecDebug.o `test -f 'RecDebug.cc' || echo '$(srcdir)/'`RecDebug.cc
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/librecprocess_a-RecDebug.Tpo $(DEPDIR)/librecprocess_a-RecDebug.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='RecDebug.cc' object='librecprocess_a-RecDebug.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -c -o librecprocess_a-RecDebug.o `test -f 'RecDebug.cc' || echo '$(srcdir)/'`RecDebug.cc
+
+librecprocess_a-RecDebug.obj: RecDebug.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -MT librecprocess_a-RecDebug.obj -MD -MP -MF $(DEPDIR)/librecprocess_a-RecDebug.Tpo -c -o librecprocess_a-RecDebug.obj `if test -f 'RecDebug.cc'; then $(CYGPATH_W) 'RecDebug.cc'; else $(CYGPATH_W) '$(srcdir)/RecDebug.cc'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/librecprocess_a-RecDebug.Tpo $(DEPDIR)/librecprocess_a-RecDebug.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='RecDebug.cc' object='librecprocess_a-RecDebug.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -c -o librecprocess_a-RecDebug.obj `if test -f 'RecDebug.cc'; then $(CYGPATH_W) 'RecDebug.cc'; else $(CYGPATH_W) '$(srcdir)/RecDebug.cc'; fi`
+
+librecprocess_a-RecConfigParse.o: RecConfigParse.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -MT librecprocess_a-RecConfigParse.o -MD -MP -MF $(DEPDIR)/librecprocess_a-RecConfigParse.Tpo -c -o librecprocess_a-RecConfigParse.o `test -f 'RecConfigParse.cc' || echo '$(srcdir)/'`RecConfigParse.cc
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/librecprocess_a-RecConfigParse.Tpo $(DEPDIR)/librecprocess_a-RecConfigParse.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='RecConfigParse.cc' object='librecprocess_a-RecConfigParse.o' libtool=no @AMDEPBACKSLASH@
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+
+librecprocess_a-RecConfigParse.obj: RecConfigParse.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -MT librecprocess_a-RecConfigParse.obj -MD -MP -MF $(DEPDIR)/librecprocess_a-RecConfigParse.Tpo -c -o librecprocess_a-RecConfigParse.obj `if test -f 'RecConfigParse.cc'; then $(CYGPATH_W) 'RecConfigParse.cc'; else $(CYGPATH_W) '$(srcdir)/RecConfigParse.cc'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/librecprocess_a-RecConfigParse.Tpo $(DEPDIR)/librecprocess_a-RecConfigParse.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='RecConfigParse.cc' object='librecprocess_a-RecConfigParse.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(librecprocess_a_CXXFLAGS) $(CXXFLAGS) -c -o librecprocess_a-RecConfigParse.obj `if test -f 'RecConfigParse.cc'; then $(CYGPATH_W) 'RecConfigParse.cc'; else $(CYGPATH_W) '$(srcdir)/RecConfigParse.cc'; fi`
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
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+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
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+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/records/P_RecCore.cc b/lib/records/P_RecCore.cc
new file mode 100644
index 00000000..3168741f
--- /dev/null
+++ b/lib/records/P_RecCore.cc
@@ -0,0 +1,1042 @@
+/** @file
+
+  Private record core definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "TextBuffer.h"
+#include "Tokenizer.h"
+#include "ink_defs.h"
+#include "ink_string.h"
+
+#include "P_RecFile.h"
+#include "P_RecUtils.h"
+#include "P_RecMessage.h"
+#include "P_RecCore.h"
+
+RecModeT g_mode_type = RECM_NULL;
+
+
+//-------------------------------------------------------------------------
+// send_reset_message
+//-------------------------------------------------------------------------
+static int
+send_reset_message(RecRecord * record)
+{
+  RecMessage *m;
+
+  rec_mutex_acquire(&(record->lock));
+  m = RecMessageAlloc(RECG_RESET);
+  m = RecMessageMarshal_Realloc(m, record);
+  RecDebug(DL_Note, "[send] RECG_RESET [%d bytes]", sizeof(RecMessageHdr) + m->o_write - m->o_start);
+  RecMessageSend(m);
+  RecMessageFree(m);
+  rec_mutex_release(&(record->lock));
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// send_set_message
+//-------------------------------------------------------------------------
+static int
+send_set_message(RecRecord * record)
+{
+  RecMessage *m;
+
+  rec_mutex_acquire(&(record->lock));
+  m = RecMessageAlloc(RECG_SET);
+  m = RecMessageMarshal_Realloc(m, record);
+  RecDebug(DL_Note, "[send] RECG_SET [%d bytes]", sizeof(RecMessageHdr) + m->o_write - m->o_start);
+  RecMessageSend(m);
+  RecMessageFree(m);
+  rec_mutex_release(&(record->lock));
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// send_register_message
+//-------------------------------------------------------------------------
+int
+send_register_message(RecRecord * record)
+{
+  RecMessage *m;
+
+  rec_mutex_acquire(&(record->lock));
+  m = RecMessageAlloc(RECG_REGISTER);
+  m = RecMessageMarshal_Realloc(m, record);
+  RecDebug(DL_Note, "[send] RECG_REGISTER [%d bytes]", sizeof(RecMessageHdr) + m->o_write - m->o_start);
+  RecMessageSend(m);
+  RecMessageFree(m);
+  rec_mutex_release(&(record->lock));
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// send_push_message
+//-------------------------------------------------------------------------
+int
+send_push_message()
+{
+  RecRecord *r;
+  RecMessage *m;
+  int i, num_records;
+  bool send_msg = false;
+
+  m = RecMessageAlloc(RECG_PUSH);
+  num_records = g_num_records;
+  for (i = 0; i < num_records; i++) {
+    r = &(g_records[i]);
+    rec_mutex_acquire(&(r->lock));
+    if (i_am_the_record_owner(r->rec_type)) {
+      if (r->sync_required & REC_PEER_SYNC_REQUIRED) {
+        m = RecMessageMarshal_Realloc(m, r);
+        r->sync_required = r->sync_required & ~REC_PEER_SYNC_REQUIRED;
+        send_msg = true;
+      }
+    }
+    rec_mutex_release(&(r->lock));
+  }
+  if (send_msg) {
+    RecDebug(DL_Note, "[send] RECG_PUSH [%d bytes]", sizeof(RecMessageHdr) + m->o_write - m->o_start);
+    RecMessageSend(m);
+  }
+  RecMessageFree(m);
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// send_pull_message
+//-------------------------------------------------------------------------
+int
+send_pull_message(RecMessageT msg_type)
+{
+  RecRecord *r;
+  RecMessage *m;
+  int i, num_records;
+
+  m = RecMessageAlloc(msg_type);
+  switch (msg_type) {
+
+  case RECG_PULL_REQ:
+    // We're requesting all of the records from our peer.  No payload
+    // here, just send the message.
+    RecDebug(DL_Note, "[send] RECG_PULL_REQ [%d bytes]", sizeof(RecMessageHdr) + m->o_write - m->o_start);
+    break;
+
+  case RECG_PULL_ACK:
+    // Respond to a RECG_PULL_REQ message from our peer.  Send ALL
+    // records!  Also be sure to send a response even if it has no
+    // payload.  Our peer may be blocking and waiting for a response!
+    num_records = g_num_records;
+    for (i = 0; i < num_records; i++) {
+      r = &(g_records[i]);
+      if (i_am_the_record_owner(r->rec_type) ||
+          (REC_TYPE_IS_STAT(r->rec_type) && !(r->registered)) ||
+          (REC_TYPE_IS_STAT(r->rec_type) && !(r->stat_meta.persist_type != RECP_NON_PERSISTENT))) {
+        rec_mutex_acquire(&(r->lock));
+        m = RecMessageMarshal_Realloc(m, r);
+        r->sync_required = r->sync_required & ~REC_PEER_SYNC_REQUIRED;
+        rec_mutex_release(&(r->lock));
+      }
+    }
+    RecDebug(DL_Note, "[send] RECG_PULL_ACK [%d bytes]", sizeof(RecMessageHdr) + m->o_write - m->o_start);
+    break;
+
+  default:
+    RecMessageFree(m);
+    return REC_ERR_FAIL;
+
+  }
+
+  RecMessageSend(m);
+  RecMessageFree(m);
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// recv_message_cb
+//-------------------------------------------------------------------------
+int
+recv_message_cb(RecMessage * msg, RecMessageT msg_type, void */* cookie */)
+{
+  RecRecord *r;
+  RecMessageItr itr;
+
+  switch (msg_type) {
+
+  case RECG_SET:
+
+    RecDebug(DL_Note, "[recv] RECG_SET [%d bytes]", sizeof(RecMessageHdr) + msg->o_end - msg->o_start);
+    if (RecMessageUnmarshalFirst(msg, &itr, &r) != REC_ERR_FAIL) {
+      do {
+        if (REC_TYPE_IS_STAT(r->rec_type)) {
+          RecSetRecord(r->rec_type, r->name, r->data_type, &(r->data), &(r->stat_meta.data_raw));
+        } else {
+          RecSetRecord(r->rec_type, r->name, r->data_type, &(r->data), NULL);
+        }
+      } while (RecMessageUnmarshalNext(msg, &itr, &r) != REC_ERR_FAIL);
+    }
+    break;
+
+  case RECG_RESET:
+
+    RecDebug(DL_Note, "[recv] RECG_RESET [%d bytes]", sizeof(RecMessageHdr) + msg->o_end - msg->o_start);
+    if (RecMessageUnmarshalFirst(msg, &itr, &r) != REC_ERR_FAIL) {
+      do {
+        if (REC_TYPE_IS_STAT(r->rec_type)) {
+          RecResetStatRecord(r->name);
+        } else {
+          RecSetRecord(r->rec_type, r->name, r->data_type, &(r->data), NULL);
+        }
+      } while (RecMessageUnmarshalNext(msg, &itr, &r) != REC_ERR_FAIL);
+    }
+    break;
+
+  case RECG_REGISTER:
+    RecDebug(DL_Note, "[recv] RECG_REGISTER [%d bytes]", sizeof(RecMessageHdr) + msg->o_end - msg->o_start);
+    if (RecMessageUnmarshalFirst(msg, &itr, &r) != REC_ERR_FAIL) {
+      do {
+        if (REC_TYPE_IS_STAT(r->rec_type)) {
+          RecRegisterStat(r->rec_type, r->name, r->data_type, r->data_default, r->stat_meta.persist_type);
+        } else if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+          RecRegisterConfig(r->rec_type, r->name, r->data_type,
+                            r->data_default, r->config_meta.update_type,
+                            r->config_meta.check_type, r->config_meta.check_expr, r->config_meta.access_type);
+        }
+      } while (RecMessageUnmarshalNext(msg, &itr, &r) != REC_ERR_FAIL);
+    }
+    break;
+
+  case RECG_PUSH:
+    RecDebug(DL_Note, "[recv] RECG_PUSH [%d bytes]", sizeof(RecMessageHdr) + msg->o_end - msg->o_start);
+    if (RecMessageUnmarshalFirst(msg, &itr, &r) != REC_ERR_FAIL) {
+      do {
+        RecForceInsert(r);
+      } while (RecMessageUnmarshalNext(msg, &itr, &r) != REC_ERR_FAIL);
+    }
+    break;
+
+  case RECG_PULL_ACK:
+    RecDebug(DL_Note, "[recv] RECG_PULL_ACK [%d bytes]", sizeof(RecMessageHdr) + msg->o_end - msg->o_start);
+    if (RecMessageUnmarshalFirst(msg, &itr, &r) != REC_ERR_FAIL) {
+      do {
+        RecForceInsert(r);
+      } while (RecMessageUnmarshalNext(msg, &itr, &r) != REC_ERR_FAIL);
+    }
+    break;
+
+  case RECG_PULL_REQ:
+    RecDebug(DL_Note, "[recv] RECG_PULL_REQ [%d bytes]", sizeof(RecMessageHdr) + msg->o_end - msg->o_start);
+    send_pull_message(RECG_PULL_ACK);
+    break;
+
+  default:
+    ink_assert(!"Unexpected RecG type");
+    return REC_ERR_FAIL;
+
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterStatXXX
+//-------------------------------------------------------------------------
+#define REC_REGISTER_STAT_XXX(A, B) \
+  ink_assert((rec_type == RECT_NODE)    || \
+                   (rec_type == RECT_CLUSTER) || \
+                   (rec_type == RECT_PROCESS) || \
+                   (rec_type == RECT_LOCAL)   || \
+                   (rec_type == RECT_PLUGIN));   \
+  RecRecord *r; \
+  RecData my_data_default; \
+  my_data_default.A = data_default; \
+  if ((r = RecRegisterStat(rec_type, name, B, my_data_default, \
+                           persist_type)) != NULL) { \
+    if (i_am_the_record_owner(r->rec_type)) { \
+      r->sync_required = r->sync_required | REC_PEER_SYNC_REQUIRED; \
+    } else { \
+      send_register_message(r); \
+    } \
+    return REC_ERR_OKAY; \
+  } else { \
+    return REC_ERR_FAIL; \
+  }
+
+int
+_RecRegisterStatInt(RecT rec_type, const char *name, RecInt data_default, RecPersistT persist_type)
+{
+  REC_REGISTER_STAT_XXX(rec_int, RECD_INT);
+}
+
+int
+_RecRegisterStatFloat(RecT rec_type, const char *name, RecFloat data_default, RecPersistT persist_type)
+{
+  REC_REGISTER_STAT_XXX(rec_float, RECD_FLOAT);
+}
+
+int
+_RecRegisterStatString(RecT rec_type, const char *name, RecString data_default, RecPersistT persist_type)
+{
+  REC_REGISTER_STAT_XXX(rec_string, RECD_STRING);
+}
+
+int
+_RecRegisterStatCounter(RecT rec_type, const char *name, RecCounter data_default, RecPersistT persist_type)
+{
+  REC_REGISTER_STAT_XXX(rec_counter, RECD_COUNTER);
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterConfigXXX
+//-------------------------------------------------------------------------
+#define REC_REGISTER_CONFIG_XXX(A, B) \
+  RecRecord *r; \
+  RecData my_data_default; \
+  my_data_default.A = data_default; \
+  if ((r = RecRegisterConfig(rec_type, name, B, my_data_default, \
+                             update_type, check_type,              \
+                             check_regex, access_type)) != NULL) { \
+    if (i_am_the_record_owner(r->rec_type)) { \
+      r->sync_required = r->sync_required | REC_PEER_SYNC_REQUIRED; \
+    } else { \
+      send_register_message(r); \
+    } \
+    return REC_ERR_OKAY; \
+  } else { \
+    return REC_ERR_FAIL; \
+  }
+
+int
+RecRegisterConfigInt(RecT rec_type, const char *name,
+                     RecInt data_default, RecUpdateT update_type,
+                     RecCheckT check_type, const char *check_regex, RecAccessT access_type)
+{
+  ink_assert((rec_type == RECT_CONFIG) || (rec_type == RECT_LOCAL));
+  REC_REGISTER_CONFIG_XXX(rec_int, RECD_INT);
+}
+
+int
+RecRegisterConfigFloat(RecT rec_type, const char *name,
+                       RecFloat data_default, RecUpdateT update_type,
+                       RecCheckT check_type, const char *check_regex, RecAccessT access_type)
+{
+  ink_assert((rec_type == RECT_CONFIG) || (rec_type == RECT_LOCAL));
+  REC_REGISTER_CONFIG_XXX(rec_float, RECD_FLOAT);
+}
+
+
+int
+RecRegisterConfigString(RecT rec_type, const char *name,
+                        const char *data_default_tmp, RecUpdateT update_type,
+                        RecCheckT check_type, const char *check_regex, RecAccessT access_type)
+{
+  RecString data_default = (RecString)data_default_tmp;
+  ink_assert((rec_type == RECT_CONFIG) || (rec_type == RECT_LOCAL));
+  REC_REGISTER_CONFIG_XXX(rec_string, RECD_STRING);
+}
+
+int
+RecRegisterConfigCounter(RecT rec_type, const char *name,
+                         RecCounter data_default, RecUpdateT update_type,
+                         RecCheckT check_type, const char *check_regex, RecAccessT access_type)
+{
+  ink_assert((rec_type == RECT_CONFIG) || (rec_type == RECT_LOCAL));
+  REC_REGISTER_CONFIG_XXX(rec_counter, RECD_COUNTER);
+}
+
+
+//-------------------------------------------------------------------------
+// RecSetRecordXXX
+//-------------------------------------------------------------------------
+int
+RecSetRecord(RecT rec_type, const char *name, RecDataT data_type, RecData *data, RecRawStat *data_raw, bool lock, bool inc_version)
+{
+  int err = REC_ERR_OKAY;
+  RecRecord *r1;
+
+  // FIXME: Most of the time we set, we don't actually need to wrlock
+  // since we are not modifying the g_records_ht.
+  if (lock) {
+    ink_rwlock_wrlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r1)) {
+    if (i_am_the_record_owner(r1->rec_type)) {
+      rec_mutex_acquire(&(r1->lock));
+      if ((data_type != RECD_NULL) && (r1->data_type != data_type)) {
+        err = REC_ERR_FAIL;
+      } else {
+        if (data_type == RECD_NULL) {
+          ink_assert(data->rec_string);
+          switch (r1->data_type) {
+          case RECD_INT:
+            r1->data.rec_int = ink_atoi64(data->rec_string);
+            data_type = RECD_INT;
+            break;
+          case RECD_FLOAT:
+            r1->data.rec_float = atof(data->rec_string);
+            data_type = RECD_FLOAT;
+            break;
+          case RECD_STRING:
+            data_type = RECD_STRING;
+            r1->data.rec_string = data->rec_string;
+            break;
+          case RECD_COUNTER:
+            r1->data.rec_int = ink_atoi64(data->rec_string);
+            data_type = RECD_COUNTER;
+            break;
+          default:
+            err = REC_ERR_FAIL;
+            break;
+          }
+        }
+
+        if (RecDataSet(data_type, &(r1->data), data)) {
+          r1->sync_required = REC_SYNC_REQUIRED;
+          if (inc_version) {
+            r1->sync_required |= REC_INC_CONFIG_VERSION;
+          }
+          if (REC_TYPE_IS_CONFIG(r1->rec_type)) {
+            r1->config_meta.update_required = REC_UPDATE_REQUIRED;
+          }
+        }
+        if (REC_TYPE_IS_STAT(r1->rec_type) && (data_raw != NULL)) {
+          r1->stat_meta.data_raw = *data_raw;
+        }
+      }
+      rec_mutex_release(&(r1->lock));
+    } else {
+      // We don't need to ats_strdup() here as we will make copies of any
+      // strings when we marshal them into our RecMessage buffer.
+      RecRecord r2;
+
+      RecRecordInit(&r2);
+      r2.rec_type = rec_type;
+      r2.name = name;
+      r2.data_type = (data_type != RECD_NULL) ? data_type : r1->data_type;
+      r2.data = *data;
+      if (REC_TYPE_IS_STAT(r2.rec_type) && (data_raw != NULL)) {
+        r2.stat_meta.data_raw = *data_raw;
+      }
+      err = send_set_message(&r2);
+      RecRecordFree(&r2);
+    }
+  } else {
+    // Add the record but do not set the 'registered' flag, as this
+    // record really hasn't been registered yet.  Also, in order to
+    // add the record, we need to have a rec_type, so if the user
+    // calls RecSetRecord on a record we haven't registered yet, we
+    // should fail out here.
+    if ((rec_type == RECT_NULL) || (data_type == RECD_NULL)) {
+      err = REC_ERR_FAIL;
+      goto Ldone;
+    }
+    r1 = RecAlloc(rec_type, name, data_type);
+    RecDataSet(data_type, &(r1->data), data);
+    if (REC_TYPE_IS_STAT(r1->rec_type) && (data_raw != NULL)) {
+      r1->stat_meta.data_raw = *data_raw;
+    }
+    if (i_am_the_record_owner(r1->rec_type)) {
+      r1->sync_required = r1->sync_required | REC_PEER_SYNC_REQUIRED;
+    } else {
+      err = send_set_message(r1);
+    }
+    ink_hash_table_insert(g_records_ht, name, (void *) r1);
+
+  }
+
+Ldone:
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+int
+RecSetRecordConvert(const char *name, const RecString rec_string, bool lock, bool inc_version)
+{
+  RecData data;
+  data.rec_string = rec_string;
+  return RecSetRecord(RECT_NULL, name, RECD_NULL, &data, NULL, lock, inc_version);
+}
+
+int
+RecSetRecordInt(const char *name, RecInt rec_int, bool lock, bool inc_version)
+{
+  RecData data;
+  data.rec_int = rec_int;
+  return RecSetRecord(RECT_NULL, name, RECD_INT, &data, NULL, lock, inc_version);
+}
+
+int
+RecSetRecordFloat(const char *name, RecFloat rec_float, bool lock, bool inc_version)
+{
+  RecData data;
+  data.rec_float = rec_float;
+  return RecSetRecord(RECT_NULL, name, RECD_FLOAT, &data, NULL, lock, inc_version);
+}
+
+int
+RecSetRecordString(const char *name, const RecString rec_string, bool lock, bool inc_version)
+{
+  RecData data;
+  data.rec_string = rec_string;
+  return RecSetRecord(RECT_NULL, name, RECD_STRING, &data, NULL, lock, inc_version);
+}
+
+int
+RecSetRecordCounter(const char *name, RecCounter rec_counter, bool lock, bool inc_version)
+{
+  RecData data;
+  data.rec_counter = rec_counter;
+  return RecSetRecord(RECT_NULL, name, RECD_COUNTER, &data, NULL, lock, inc_version);
+}
+
+
+//-------------------------------------------------------------------------
+// RecReadStatsFile
+//-------------------------------------------------------------------------
+int
+RecReadStatsFile()
+{
+  RecRecord *r;
+  RecMessage *m;
+  RecMessageItr itr;
+  RecPersistT persist_type = RECP_NULL;
+  xptr<char> snap_fpath(RecConfigReadPersistentStatsPath());
+
+  // lock our hash table
+  ink_rwlock_wrlock(&g_records_rwlock);
+
+  if ((m = RecMessageReadFromDisk(snap_fpath)) != NULL) {
+    if (RecMessageUnmarshalFirst(m, &itr, &r) != REC_ERR_FAIL) {
+      do {
+        if ((r->name == NULL) || (!strlen(r->name))) {
+          continue;
+        }
+
+        // If we don't have a persistence type for this record, it means that it is not a stat, or it is
+        // not registered yet. Either way, it's ok to just set the persisted value and keep going.
+        if (RecGetRecordPersistenceType(r->name, &persist_type, false /* lock */) != REC_ERR_OKAY) {
+          RecDebug(DL_Debug, "restoring value for persisted stat '%s'", r->name);
+          RecSetRecord(r->rec_type, r->name, r->data_type, &(r->data), &(r->stat_meta.data_raw), false);
+          continue;
+        }
+
+        if (!REC_TYPE_IS_STAT(r->rec_type)) {
+          // This should not happen, but be defensive against records changing their type ..
+          RecLog(DL_Warning, "skipping restore of non-stat record '%s'", r->name);
+          continue;
+        }
+
+        // Check whether the persistence type was changed by a new software version. If the record is
+        // already registered with an updated persistence type, then we don't want to set it. We should
+        // keep the registered value.
+        if (persist_type == RECP_NON_PERSISTENT) {
+          RecDebug(DL_Debug, "preserving current value of formerly persistent stat '%s'", r->name);
+          continue;
+        }
+
+        RecDebug(DL_Debug, "restoring value for persisted stat '%s'", r->name);
+        RecSetRecord(r->rec_type, r->name, r->data_type, &(r->data), &(r->stat_meta.data_raw), false);
+      } while (RecMessageUnmarshalNext(m, &itr, &r) != REC_ERR_FAIL);
+    }
+  }
+
+  ink_rwlock_unlock(&g_records_rwlock);
+  ats_free(m);
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecSyncStatsFile
+//-------------------------------------------------------------------------
+int
+RecSyncStatsFile()
+{
+  RecRecord *r;
+  RecMessage *m;
+  int i, num_records;
+  bool sync_to_disk;
+  xptr<char> snap_fpath(RecConfigReadPersistentStatsPath());
+
+  /*
+   * g_mode_type should be initialized by
+   * RecLocalInit() or RecProcessInit() earlier.
+   */
+  ink_assert(g_mode_type != RECM_NULL);
+
+  if (g_mode_type == RECM_SERVER || g_mode_type == RECM_STAND_ALONE) {
+    m = RecMessageAlloc(RECG_NULL);
+    num_records = g_num_records;
+    sync_to_disk = false;
+    for (i = 0; i < num_records; i++) {
+      r = &(g_records[i]);
+      rec_mutex_acquire(&(r->lock));
+      if (REC_TYPE_IS_STAT(r->rec_type)) {
+        if (r->stat_meta.persist_type == RECP_PERSISTENT) {
+          m = RecMessageMarshal_Realloc(m, r);
+          sync_to_disk = true;
+        }
+      }
+      rec_mutex_release(&(r->lock));
+    }
+    if (sync_to_disk) {
+      RecDebug(DL_Note, "Writing '%s' [%d bytes]", (const char *)snap_fpath, m->o_write - m->o_start + sizeof(RecMessageHdr));
+      RecMessageWriteToDisk(m, snap_fpath);
+    }
+    RecMessageFree(m);
+  }
+
+  return REC_ERR_OKAY;
+}
+
+// Consume a parsed record, pushing it into the records hash table.
+static void
+RecConsumeConfigEntry(RecT rec_type, RecDataT data_type, const char * name, const char * value, bool inc_version)
+{
+    RecData data;
+
+    memset(&data, 0, sizeof(RecData));
+    RecDataSetFromString(data_type, &data, value);
+    RecSetRecord(rec_type, name, data_type, &data, NULL, false, inc_version);
+    RecDataClear(data_type, &data);
+}
+
+//-------------------------------------------------------------------------
+// RecReadConfigFile
+//-------------------------------------------------------------------------
+int
+RecReadConfigFile(bool inc_version)
+{
+  RecDebug(DL_Note, "Reading '%s'", g_rec_config_fpath);
+
+  // lock our hash table
+  ink_rwlock_wrlock(&g_records_rwlock);
+
+  // Parse the actual fileand hash the values.
+  RecConfigFileParse(g_rec_config_fpath, RecConsumeConfigEntry, inc_version);
+
+  // release our hash table
+  ink_rwlock_unlock(&g_records_rwlock);
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecSyncConfigFile
+//-------------------------------------------------------------------------
+int
+RecSyncConfigToTB(textBuffer * tb, bool *inc_version)
+{
+  int err = REC_ERR_FAIL;
+
+  if (inc_version != NULL) {
+    *inc_version = false;
+  }
+  /*
+   * g_mode_type should be initialized by
+   * RecLocalInit() or RecProcessInit() earlier.
+   */
+  ink_assert(g_mode_type != RECM_NULL);
+
+  if (g_mode_type == RECM_SERVER || g_mode_type == RECM_STAND_ALONE) {
+    RecRecord *r;
+    int i, num_records;
+    RecConfigFileEntry *cfe;
+    bool sync_to_disk;
+
+    ink_mutex_acquire(&g_rec_config_lock);
+
+    num_records = g_num_records;
+    sync_to_disk = false;
+    for (i = 0; i < num_records; i++) {
+      r = &(g_records[i]);
+      rec_mutex_acquire(&(r->lock));
+      if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+        if (r->sync_required & REC_DISK_SYNC_REQUIRED) {
+          if (!ink_hash_table_isbound(g_rec_config_contents_ht, r->name)) {
+            cfe = (RecConfigFileEntry *)ats_malloc(sizeof(RecConfigFileEntry));
+            cfe->entry_type = RECE_RECORD;
+            cfe->entry = ats_strdup(r->name);
+            enqueue(g_rec_config_contents_llq, (void *) cfe);
+            ink_hash_table_insert(g_rec_config_contents_ht, r->name, NULL);
+          }
+          r->sync_required = r->sync_required & ~REC_DISK_SYNC_REQUIRED;
+          sync_to_disk = true;
+          if (r->sync_required & REC_INC_CONFIG_VERSION) {
+            r->sync_required = r->sync_required & ~REC_INC_CONFIG_VERSION;
+            if (r->rec_type != RECT_LOCAL && inc_version != NULL) {
+              *inc_version = true;
+            }
+          }
+        }
+      }
+      rec_mutex_release(&(r->lock));
+    }
+
+    if (sync_to_disk) {
+      char b[1024];
+
+      // okay, we're going to write into our textBuffer
+      err = REC_ERR_OKAY;
+      tb->reUse();
+
+      ink_rwlock_rdlock(&g_records_rwlock);
+
+      LLQrec *llq_rec = g_rec_config_contents_llq->head;
+      while (llq_rec != NULL) {
+        cfe = (RecConfigFileEntry *) llq_rec->data;
+        if (cfe->entry_type == RECE_COMMENT) {
+          tb->copyFrom(cfe->entry, strlen(cfe->entry));
+          tb->copyFrom("\n", 1);
+        } else {
+          if (ink_hash_table_lookup(g_records_ht, cfe->entry, (void **) &r)) {
+            rec_mutex_acquire(&(r->lock));
+            // rec_type
+            switch (r->rec_type) {
+            case RECT_CONFIG:
+              tb->copyFrom("CONFIG ", 7);
+              break;
+            case RECT_PROCESS:
+              tb->copyFrom("PROCESS ", 8);
+              break;
+            case RECT_NODE:
+              tb->copyFrom("NODE ", 5);
+              break;
+            case RECT_CLUSTER:
+              tb->copyFrom("CLUSTER ", 8);
+              break;
+            case RECT_LOCAL:
+              tb->copyFrom("LOCAL ", 6);
+              break;
+            default:
+              ink_assert(!"Unexpected RecT type");
+              break;
+            }
+            // name
+            tb->copyFrom(cfe->entry, strlen(cfe->entry));
+            tb->copyFrom(" ", 1);
+            // data_type and value
+            switch (r->data_type) {
+            case RECD_INT:
+              tb->copyFrom("INT ", 4);
+              snprintf(b, 1023, "%" PRId64 "", r->data.rec_int);
+              tb->copyFrom(b, strlen(b));
+              break;
+            case RECD_FLOAT:
+              tb->copyFrom("FLOAT ", 6);
+              snprintf(b, 1023, "%f", r->data.rec_float);
+              tb->copyFrom(b, strlen(b));
+              break;
+            case RECD_STRING:
+              tb->copyFrom("STRING ", 7);
+              if (r->data.rec_string) {
+                tb->copyFrom(r->data.rec_string, strlen(r->data.rec_string));
+              } else {
+                tb->copyFrom("NULL", strlen("NULL"));
+              }
+              break;
+            case RECD_COUNTER:
+              tb->copyFrom("COUNTER ", 8);
+              snprintf(b, 1023, "%" PRId64 "", r->data.rec_counter);
+              tb->copyFrom(b, strlen(b));
+              break;
+            default:
+              ink_assert(!"Unexpected RecD type");
+              break;
+            }
+            tb->copyFrom("\n", 1);
+            rec_mutex_release(&(r->lock));
+          }
+        }
+        llq_rec = llq_rec->next;
+      }
+      ink_rwlock_unlock(&g_records_rwlock);
+    }
+    ink_mutex_release(&g_rec_config_lock);
+  }
+
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// RecExecConifgUpdateCbs
+//-------------------------------------------------------------------------
+int
+RecExecConfigUpdateCbs(unsigned int update_required_type)
+{
+  RecRecord *r;
+  int i, num_records;
+
+  num_records = g_num_records;
+  for (i = 0; i < num_records; i++) {
+    r = &(g_records[i]);
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+      /* -- upgrade to support a list of callback functions
+         if ((r->config_meta.update_required & update_required_type) &&
+         (r->config_meta.update_cb)) {
+         (*(r->config_meta.update_cb))(r->name, r->data_type, r->data,
+         r->config_meta.update_cookie);
+         r->config_meta.update_required =
+         r->config_meta.update_required & ~update_required_type;
+         }
+       */
+
+      if ((r->config_meta.update_required & update_required_type) && (r->config_meta.update_cb_list)) {
+        RecConfigUpdateCbList *cur_callback = NULL;
+        for (cur_callback = r->config_meta.update_cb_list; cur_callback; cur_callback = cur_callback->next) {
+          (*(cur_callback->update_cb)) (r->name, r->data_type, r->data, cur_callback->update_cookie);
+        }
+        r->config_meta.update_required = r->config_meta.update_required & ~update_required_type;
+      }
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//------------------------------------------------------------------------
+// RecResetStatRecord
+//------------------------------------------------------------------------
+int
+RecResetStatRecord(const char *name)
+{
+  RecRecord *r1 = NULL;
+  int err = REC_ERR_OKAY;
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r1)) {
+    if (i_am_the_record_owner(r1->rec_type)) {
+      rec_mutex_acquire(&(r1->lock));
+      ++(r1->version);
+      RecDataSet(r1->data_type, &(r1->data), &(r1->data_default));
+      rec_mutex_release(&(r1->lock));
+      err = REC_ERR_OKAY;
+    } else {
+      RecRecord r2;
+
+      RecRecordInit(&r2);
+      r2.rec_type = r1->rec_type;
+      r2.name = r1->name;
+      r2.data_type = r1->data_type;
+      r2.data = r1->data_default;
+
+      err = send_reset_message(&r2);
+      RecRecordFree(&r2);
+    }
+  } else {
+    err = REC_ERR_FAIL;
+  }
+
+  return err;
+}
+
+
+//------------------------------------------------------------------------
+// RecResetStatRecord
+//------------------------------------------------------------------------
+int
+RecResetStatRecord(RecT type, bool all)
+{
+  int i, num_records;
+  int err = REC_ERR_OKAY;
+
+  RecDebug(DL_Note, "Reset Statistics Records");
+
+  num_records = g_num_records;
+  for (i = 0; i < num_records; i++) {
+    RecRecord *r1 = &(g_records[i]);
+
+    if (REC_TYPE_IS_STAT(r1->rec_type) && ((type == RECT_NULL) || (r1->rec_type == type)) &&
+        (all || (r1->stat_meta.persist_type != RECP_NON_PERSISTENT)) &&
+        (r1->data_type != RECD_STRING)) {
+      if (i_am_the_record_owner(r1->rec_type)) {
+        rec_mutex_acquire(&(r1->lock));
+        ++(r1->version);
+        if (!RecDataSet(r1->data_type, &(r1->data), &(r1->data_default))) {
+          err = REC_ERR_FAIL;
+        }
+        rec_mutex_release(&(r1->lock));
+      } else {
+        RecRecord r2;
+
+        RecRecordInit(&r2);
+        r2.rec_type = r1->rec_type;
+        r2.name = r1->name;
+        r2.data_type = r1->data_type;
+        r2.data = r1->data_default;
+
+        err = send_reset_message(&r2);
+        RecRecordFree(&r2);
+      }
+    }
+  }
+  return err;
+}
+
+
+int
+RecSetSyncRequired(char *name, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r1;
+
+  // FIXME: Most of the time we set, we don't actually need to wrlock
+  // since we are not modifying the g_records_ht.
+  if (lock) {
+    ink_rwlock_wrlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r1)) {
+    if (i_am_the_record_owner(r1->rec_type)) {
+      rec_mutex_acquire(&(r1->lock));
+      r1->sync_required = REC_SYNC_REQUIRED;
+      if (REC_TYPE_IS_CONFIG(r1->rec_type)) {
+        r1->config_meta.update_required = REC_UPDATE_REQUIRED;
+      }
+      rec_mutex_release(&(r1->lock));
+      err = REC_ERR_OKAY;
+    } else {
+      // No point of doing the following because our peer will
+      // set the value with RecDataSet. However, since
+      // r2.name == r1->name, the sync_required bit will not be
+      // set.
+
+      /*
+         RecRecord r2;
+
+         RecRecordInit(&r2);
+         r2.rec_type  = r1->rec_type;
+         r2.name      = r1->name;
+         r2.data_type = r1->data_type;
+         r2.data      = r1->data_default;
+
+         err = send_set_message(&r2);
+         RecRecordFree(&r2);
+       */
+    }
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+int RecWriteConfigFile(textBuffer *tb)
+{
+#define TMP_FILENAME_EXT_STR ".tmp"
+#define TMP_FILENAME_EXT_LEN (sizeof(TMP_FILENAME_EXT_STR) - 1)
+
+  int nbytes;
+  int filename_len;
+  int tmp_filename_len;
+  int result;
+  char buff[1024];
+  char *tmp_filename;
+
+  filename_len = strlen(g_rec_config_fpath);
+  tmp_filename_len = filename_len + TMP_FILENAME_EXT_LEN;
+  if (tmp_filename_len < (int)sizeof(buff)) {
+    tmp_filename = buff;
+  } else {
+    tmp_filename = (char *)ats_malloc(tmp_filename_len + 1);
+  }
+  sprintf(tmp_filename, "%s%s", g_rec_config_fpath, TMP_FILENAME_EXT_STR);
+
+  RecDebug(DL_Note, "Writing '%s'", g_rec_config_fpath);
+
+  RecHandle h_file = RecFileOpenW(tmp_filename);
+  do {
+    if (h_file == REC_HANDLE_INVALID) {
+      RecLog(DL_Warning, "open file: %s to write fail, errno: %d, error info: %s",
+          tmp_filename, errno, strerror(errno));
+      result = REC_ERR_FAIL;
+      break;
+    }
+
+    if (RecFileWrite(h_file, tb->bufPtr(), tb->spaceUsed(), &nbytes) != REC_ERR_OKAY) {
+      RecLog(DL_Warning, "write to file: %s fail, errno: %d, error info: %s",
+          tmp_filename, errno, strerror(errno));
+      result = REC_ERR_FAIL;
+      break;
+    }
+
+    if (nbytes != tb->spaceUsed()) {
+      RecLog(DL_Warning, "write to file: %s fail, disk maybe full", tmp_filename);
+      result = REC_ERR_FAIL;
+      break;
+    }
+
+    if (RecFileSync(h_file) != REC_ERR_OKAY) {
+      RecLog(DL_Warning, "fsync file: %s fail, errno: %d, error info: %s",
+          tmp_filename, errno, strerror(errno));
+      result = REC_ERR_FAIL;
+      break;
+    }
+    if (RecFileClose(h_file) != REC_ERR_OKAY) {
+      RecLog(DL_Warning, "close file: %s fail, errno: %d, error info: %s",
+          tmp_filename, errno, strerror(errno));
+      result = REC_ERR_FAIL;
+      break;
+    }
+    h_file = REC_HANDLE_INVALID;
+
+    if (rename(tmp_filename, g_rec_config_fpath) != 0) {
+      RecLog(DL_Warning, "rename file %s to %s fail, errno: %d, error info: %s",
+          tmp_filename, g_rec_config_fpath, errno, strerror(errno));
+      result = REC_ERR_FAIL;
+      break;
+    }
+
+    result = REC_ERR_OKAY;
+  } while (0);
+
+  if (h_file != REC_HANDLE_INVALID) {
+    RecFileClose(h_file);
+  }
+  if (tmp_filename != buff) {
+    ats_free(tmp_filename);
+  }
+  return result;
+}
+
diff --git a/lib/records/P_RecCore.h b/lib/records/P_RecCore.h
new file mode 100644
index 00000000..bda01030
--- /dev/null
+++ b/lib/records/P_RecCore.h
@@ -0,0 +1,107 @@
+/** @file
+
+  Private record core declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_CORE_H_
+#define _P_REC_CORE_H_
+
+#include "ink_thread.h"
+#include "ink_hash_table.h"
+#include "ink_llqueue.h"
+#include "ink_rwlock.h"
+#include "TextBuffer.h"
+
+#include "I_RecCore.h"
+#include "P_RecDefs.h"
+#include "P_RecTree.h"
+
+// records, record hash-table, and hash-table rwlock
+extern RecRecord *g_records;
+extern InkHashTable *g_records_ht;
+extern ink_rwlock g_records_rwlock;
+extern int g_num_records;
+extern RecModeT g_mode_type;
+extern RecTree *g_records_tree;
+
+// records.config items
+extern const char *g_rec_config_fpath;
+extern LLQ *g_rec_config_contents_llq;
+extern InkHashTable *g_rec_config_contents_ht;
+extern ink_mutex g_rec_config_lock;
+
+//-------------------------------------------------------------------------
+// Initialization
+//-------------------------------------------------------------------------
+
+int RecCoreInit(RecModeT mode_type, Diags * diags);
+
+//-------------------------------------------------------------------------
+// Registration/Insertion
+//-------------------------------------------------------------------------
+
+RecRecord *RecRegisterStat(RecT rec_type, const char *name, RecDataT data_type,
+                           RecData data_default, RecPersistT persist_type);
+
+RecRecord *RecRegisterConfig(RecT rec_type, const char *name, RecDataT data_type,
+                             RecData data_default, RecUpdateT update_type,
+                             RecCheckT check_type, const char *check_regex, RecAccessT access_type = RECA_NULL);
+
+RecRecord *RecForceInsert(RecRecord * record);
+
+//-------------------------------------------------------------------------
+// Setting/Getting
+//-------------------------------------------------------------------------
+
+int RecSetRecord(RecT rec_type, const char *name, RecDataT data_type,
+                 RecData *data, RecRawStat *raw_stat, bool lock = true, bool inc_version = true);
+
+int RecGetRecord_Xmalloc(const char *name, RecDataT data_type, RecData * data, bool lock = true);
+
+//-------------------------------------------------------------------------
+// Read/Sync to Disk
+//-------------------------------------------------------------------------
+
+int RecReadStatsFile();
+int RecSyncStatsFile();
+int RecReadConfigFile(bool inc_version);
+int RecWriteConfigFile(textBuffer *tb);
+int RecSyncConfigToTB(textBuffer * tb, bool *inc_version = NULL);
+
+//-------------------------------------------------------------------------
+// Misc
+//-------------------------------------------------------------------------
+
+bool i_am_the_record_owner(RecT rec_type);
+int send_push_message();
+int send_pull_message(RecMessageT msg_type);
+int send_register_message(RecRecord * record);
+int recv_message_cb(RecMessage * msg, RecMessageT msg_type, void *cookie);
+int RecExecConfigUpdateCbs(unsigned int update_required_type);
+int RecExecStatUpdateFuncs();
+int RecExecRawStatUpdateFuncs();
+
+void RecDumpRecordsHt(RecT rec_type = RECT_NULL);
+
+void
+RecDumpRecords(RecT rec_type, RecDumpEntryCb callback, void *edata);
+
+#endif
diff --git a/lib/records/P_RecDefs.h b/lib/records/P_RecDefs.h
new file mode 100644
index 00000000..17cfbb2f
--- /dev/null
+++ b/lib/records/P_RecDefs.h
@@ -0,0 +1,179 @@
+/** @file
+
+  Private record declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_DEFS_H_
+#define _P_REC_DEFS_H_
+
+#include "I_RecDefs.h"
+
+#define REC_CONFIG_FILE                "records.config"
+#define REC_SHADOW_EXT                 ".shadow"
+#define REC_RAW_STATS_FILE             "records.snap"
+#define REC_PIPE_NAME                  "librecords_pipe"
+
+#define REC_MESSAGE_ELE_MAGIC           0xF00DF00D
+
+// This is for the internal stats and configs, as well as API stats. We currently use
+// about 1600 stats + configs for the core, but we're allocating 2000 for some growth.
+// TODO: if/when we switch to a new config system, we should make this run-time dynamic.
+#define REC_MAX_RECORDS                 (2000 + TS_MAX_API_STATS)
+
+#define REC_CONFIG_UPDATE_INTERVAL_MS  3000
+#define REC_REMOTE_SYNC_INTERVAL_MS    5000
+
+#define REC_RAW_STAT_SYNC_INTERVAL_MS  5000
+#define REC_STAT_UPDATE_INTERVAL_MS    10000
+
+//-------------------------------------------------------------------------
+// Record Items
+//-------------------------------------------------------------------------
+
+#define REC_LOCAL_UPDATE_REQUIRED       1
+#define REC_PROCESS_UPDATE_REQUIRED     (REC_LOCAL_UPDATE_REQUIRED << 1)
+#define REC_UPDATE_REQUIRED             (REC_LOCAL_UPDATE_REQUIRED | REC_PROCESS_UPDATE_REQUIRED)
+
+#define REC_DISK_SYNC_REQUIRED          1
+#define REC_PEER_SYNC_REQUIRED          (REC_DISK_SYNC_REQUIRED << 1)
+#define REC_INC_CONFIG_VERSION          (REC_PEER_SYNC_REQUIRED << 1)
+#define REC_SYNC_REQUIRED               (REC_DISK_SYNC_REQUIRED | REC_PEER_SYNC_REQUIRED)
+
+enum RecEntryT
+{
+  RECE_NULL,
+  RECE_COMMENT,
+  RECE_RECORD
+};
+
+struct RecConfigFileEntry
+{
+  RecEntryT entry_type;
+  char *entry;
+};
+
+typedef struct RecConfigCbList_t
+{
+  RecConfigUpdateCb update_cb;
+  void *update_cookie;
+  struct RecConfigCbList_t *next;
+} RecConfigUpdateCbList;
+
+typedef struct RecStatUpdateFuncList_t
+{
+  RecRawStatBlock *rsb;
+  int id;
+  RecStatUpdateFunc update_func;
+  void *update_cookie;
+  struct RecStatUpdateFuncList_t *next;
+} RecStatUpdateFuncList;
+
+struct RecStatMeta
+{
+  RecRawStat data_raw;
+  RecRawStatSyncCb sync_cb;
+  RecRawStatBlock *sync_rsb;
+  int sync_id;
+  RecPersistT persist_type;
+};
+
+struct RecConfigMeta
+{
+  unsigned char update_required;
+  RecConfigUpdateCbList *update_cb_list;
+  void *update_cookie;
+  RecUpdateT update_type;
+  RecCheckT check_type;
+  char *check_expr;
+  RecAccessT access_type;
+};
+
+struct RecRecord
+{
+  RecT rec_type;
+  const char *name;
+  RecDataT data_type;
+  RecData data;
+  RecData data_default;
+  RecMutex lock;
+  unsigned char sync_required;
+  uint32_t version;
+  bool registered;
+  union
+  {
+    RecStatMeta stat_meta;
+    RecConfigMeta config_meta;
+  };
+  int order;
+  int rsb_id;
+};
+
+// Used for cluster. TODO: Do we still need this?
+struct RecRecords
+{
+  int num_recs;
+  RecRecord *recs;
+};
+
+//-------------------------------------------------------------------------
+// Message Items
+//-------------------------------------------------------------------------
+
+enum RecMessageT
+{
+  RECG_NULL,
+  RECG_SET,
+  RECG_REGISTER,
+  RECG_PUSH,
+  RECG_PULL_REQ,
+  RECG_PULL_ACK,
+  RECG_RESET
+};
+
+struct RecMessageHdr
+{
+  RecMessageT msg_type;
+  int o_start;
+  int o_write;
+  int o_end;
+  int entries;
+  int alignment;                //needs to be 8 byte aligned
+};
+
+struct RecMessageEleHdr
+{
+  unsigned int magic;
+  int o_next;
+};
+
+struct RecMessageItr
+{
+  RecMessageEleHdr *ele_hdr;
+  int next;
+};
+
+typedef RecMessageHdr RecMessage;
+
+typedef void (*RecDumpEntryCb) (RecT rec_type, void *edata, int registered, const char *name, int data_type, RecData *datum);
+
+typedef int (*RecMessageRecvCb) (RecMessage * msg, RecMessageT msg_type, void *cookie);
+
+#endif
diff --git a/lib/records/P_RecFile.h b/lib/records/P_RecFile.h
new file mode 100644
index 00000000..25b0a493
--- /dev/null
+++ b/lib/records/P_RecFile.h
@@ -0,0 +1,57 @@
+/** @file
+
+  Private RecFile and RecPipe declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_FILE_H_
+#define _P_REC_FILE_H_
+
+//-------------------------------------------------------------------------
+// types/defines
+//-------------------------------------------------------------------------
+
+#define REC_HANDLE_INVALID -1
+typedef int RecHandle;
+
+//-------------------------------------------------------------------------
+// RecFile
+//-------------------------------------------------------------------------
+
+RecHandle RecFileOpenR(const char *file);
+RecHandle RecFileOpenW(const char *file);
+int RecFileClose(RecHandle h_file);
+int RecFileRead(RecHandle h_file, char *buf, int size, int *bytes_read);
+int RecFileWrite(RecHandle h_file, char *buf, int size, int *bytes_written);
+int RecFileGetSize(RecHandle h_file);
+int RecFileExists(const char *file);
+int RecFileSync(RecHandle h_file);
+
+//-------------------------------------------------------------------------
+// RecPipe
+//-------------------------------------------------------------------------
+
+RecHandle RecPipeCreate(const char *base_path, const char *name);
+RecHandle RecPipeConnect(const char *base_path, const char *name);
+int RecPipeClose(RecHandle h_pipe);
+int RecPipeRead(RecHandle h_pipe, char *buf, int size);
+int RecPipeWrite(RecHandle h_pipe, char *buf, int size);
+
+#endif
diff --git a/lib/records/P_RecLocal.h b/lib/records/P_RecLocal.h
new file mode 100644
index 00000000..5a9c1bf5
--- /dev/null
+++ b/lib/records/P_RecLocal.h
@@ -0,0 +1,29 @@
+/** @file
+
+  Nothing much
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_LOCAL_H_
+#define _P_REC_LOCAL_H_
+
+#include "I_RecLocal.h"
+
+#endif
diff --git a/lib/records/P_RecMessage.h b/lib/records/P_RecMessage.h
new file mode 100644
index 00000000..be7dcc61
--- /dev/null
+++ b/lib/records/P_RecMessage.h
@@ -0,0 +1,53 @@
+/** @file
+
+  Private RecMessage declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_MESSAGE_H_
+#define _P_REC_MESSAGE_H_
+
+#include "P_RecDefs.h"
+
+//-------------------------------------------------------------------------
+// Initialization
+//-------------------------------------------------------------------------
+
+int RecMessageInit();
+
+//-------------------------------------------------------------------------
+// Message Operations
+//-------------------------------------------------------------------------
+
+RecMessage *RecMessageAlloc(RecMessageT msg_type, int initial_size = 256);
+int RecMessageFree(RecMessage * msg);
+
+RecMessage *RecMessageMarshal_Realloc(RecMessage * msg, const RecRecord * record);
+int RecMessageUnmarshalFirst(RecMessage * msg, RecMessageItr * itr, RecRecord ** record);
+int RecMessageUnmarshalNext(RecMessage * msg, RecMessageItr * itr, RecRecord ** record);
+
+int RecMessageSend(RecMessage * msg);
+int RecMessageRegisterRecvCb(RecMessageRecvCb recv_cb, void *cookie);
+void *RecMessageRecvThis(void *cookie, char *data_raw, int data_len);
+
+RecMessage *RecMessageReadFromDisk(const char *fpath);
+int RecMessageWriteToDisk(RecMessage *msg, const char *fpath);
+
+#endif
diff --git a/lib/records/P_RecProcess.h b/lib/records/P_RecProcess.h
new file mode 100644
index 00000000..4ebf774e
--- /dev/null
+++ b/lib/records/P_RecProcess.h
@@ -0,0 +1,44 @@
+/** @file
+
+  Private record process declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_PROCESS_H_
+#define _P_REC_PROCESS_H_
+
+// Must include 'P_EventSystem.h' before 'I_EventSystem.h' (which is
+// included in 'I_RecProcess.h') to prevent multiple-symbol-definition
+// complaints if the caller uses both 'P_EventSystem.h' and this 'P_'
+// file.
+#include "P_EventSystem.h"
+
+#include "I_RecProcess.h"
+#include "P_RecDefs.h"
+
+//-------------------------------------------------------------------------
+// Protected Interface
+//-------------------------------------------------------------------------
+
+int RecRegisterRawStatSyncCb(const char *name, RecRawStatSyncCb sync_cb, RecRawStatBlock * rsb, int id);
+
+int RecExecRawStatSyncCbs();
+
+#endif
diff --git a/lib/records/P_RecTree.h b/lib/records/P_RecTree.h
new file mode 100644
index 00000000..ee30ecf8
--- /dev/null
+++ b/lib/records/P_RecTree.h
@@ -0,0 +1,93 @@
+/** @file
+
+  Private RecTree and RecTreeNode declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_TREE_H_
+#define _P_REC_TREE_H_
+
+#include "P_RecDefs.h"
+#include "P_RecUtils.h"
+#include "List.h"
+
+class RecTree;
+
+/*************************************************************************
+ *
+ * RecTreeNode
+ *
+ *************************************************************************/
+class RecTreeNode
+{
+public:
+  RecTreeNode(const char *name = NULL);
+   ~RecTreeNode();
+
+  RecRecord *record_ptr;
+  RecTree *subtree_ptr;
+  char *node_name;
+  const char *var_name_ptr;
+  int num_leaf;
+  LINK(RecTreeNode, link);
+
+  void print();
+};
+
+
+/*************************************************************************
+ *
+ * RecTree
+ *
+ *************************************************************************/
+class RecTree
+{
+public:
+  RecTree(RecTreeNode *);
+  ~RecTree();
+
+  inline RecTreeNode *first()
+  {
+    return m_root.head;
+  };
+
+  inline RecTreeNode *last()
+  {
+    return m_root.tail;
+  };
+
+  inline RecTreeNode *next(RecTreeNode * current)
+  {
+    return (current->link).next;
+  };
+
+  void rec_tree_insert(const char *, const char *full_name = NULL);
+  RecTree *rec_tree_get(char *);
+  void rec_tree_get_list(char *, char ***, int *);
+
+  void print();
+  RecTreeNode *this_node;
+
+private:
+  void p_rec_tree_get_list(char *, char ***, int *);
+  Queue<RecTreeNode> m_root;
+};
+
+#endif
diff --git a/lib/records/P_RecUtils.h b/lib/records/P_RecUtils.h
new file mode 100644
index 00000000..de8f0187
--- /dev/null
+++ b/lib/records/P_RecUtils.h
@@ -0,0 +1,81 @@
+/** @file
+
+  Private record util declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _P_REC_UTILS_H_
+#define _P_REC_UTILS_H_
+
+#include "Diags.h"
+#include "ink_atomic.h"
+
+#include "P_RecDefs.h"
+
+//-------------------------------------------------------------------------
+// Macros
+//-------------------------------------------------------------------------
+
+#define REC_TYPE_IS_STAT(rec_type) \
+  (((rec_type) == RECT_PROCESS) || \
+   ((rec_type) == RECT_PLUGIN) || \
+   ((rec_type) == RECT_NODE) || \
+   ((rec_type) == RECT_CLUSTER))
+
+#define REC_TYPE_IS_CONFIG(rec_type) \
+  (((rec_type) == RECT_CONFIG) || \
+   ((rec_type) == RECT_LOCAL))
+
+
+//-------------------------------------------------------------------------
+// RecRecord Utils
+//-------------------------------------------------------------------------
+void RecRecordInit(RecRecord *r);
+void RecRecordFree(RecRecord *r);
+RecRecord *RecAlloc(RecT rec_type, const char *name, RecDataT data_type);
+
+
+//-------------------------------------------------------------------------
+// RecData Utils
+//-------------------------------------------------------------------------
+
+void RecDataClear(RecDataT type, RecData * data);
+void RecDataSetMax(RecDataT type, RecData * data);
+void RecDataSetMin(RecDataT type, RecData * data);
+bool RecDataSet(RecDataT data_type, RecData * data_dst, RecData * data_src);
+bool RecDataSetFromInk64(RecDataT data_type, RecData * data_dst, int64_t data_int64);
+bool RecDataSetFromFloat(RecDataT data_type, RecData * data_dst, float data_float);
+bool RecDataSetFromString(RecDataT data_type, RecData * data_dst, const char *data_string);
+int RecDataCmp(RecDataT type, RecData left, RecData right);
+RecData RecDataAdd(RecDataT type, RecData left, RecData right);
+RecData RecDataSub(RecDataT type, RecData left, RecData right);
+RecData RecDataMul(RecDataT type, RecData left, RecData right);
+RecData RecDataDiv(RecDataT type, RecData left, RecData right);
+
+
+//-------------------------------------------------------------------------
+// Logging
+//-------------------------------------------------------------------------
+
+void RecLog(DiagsLevel dl, const char *format_string, ...);
+void RecDebug(DiagsLevel dl, const char *format_string, ...);
+void RecDebugOff();
+
+#endif
diff --git a/lib/records/RecConfigParse.cc b/lib/records/RecConfigParse.cc
new file mode 100644
index 00000000..21319b4a
--- /dev/null
+++ b/lib/records/RecConfigParse.cc
@@ -0,0 +1,259 @@
+/** @file
+
+  Parse the records.config configuration file.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "TextBuffer.h"
+#include "Tokenizer.h"
+#include "ink_defs.h"
+#include "ink_string.h"
+
+#include "P_RecFile.h"
+#include "P_RecUtils.h"
+#include "P_RecMessage.h"
+#include "P_RecCore.h"
+#include "I_Layout.h"
+
+const char     *g_rec_config_fpath = NULL;
+LLQ            *g_rec_config_contents_llq = NULL;
+InkHashTable   *g_rec_config_contents_ht = NULL;
+ink_mutex       g_rec_config_lock;
+
+//-------------------------------------------------------------------------
+// RecConfigFileInit
+//-------------------------------------------------------------------------
+void
+RecConfigFileInit(void)
+{
+    ink_mutex_init(&g_rec_config_lock, NULL);
+    g_rec_config_contents_llq = create_queue();
+    g_rec_config_contents_ht = ink_hash_table_create(InkHashTableKeyType_String);
+}
+
+//-------------------------------------------------------------------------
+// RecFileImport_Xmalloc
+//-------------------------------------------------------------------------
+static int
+RecFileImport_Xmalloc(const char *file, char **file_buf, int *file_size)
+{
+  int err = REC_ERR_FAIL;
+  RecHandle h_file;
+  int bytes_read;
+
+  if (file && file_buf && file_size) {
+    *file_buf = 0;
+    *file_size = 0;
+    if ((h_file = RecFileOpenR(file)) != REC_HANDLE_INVALID) {
+      *file_size = RecFileGetSize(h_file);
+      *file_buf = (char *)ats_malloc(*file_size + 1);
+      if (RecFileRead(h_file, *file_buf, *file_size, &bytes_read) != REC_ERR_FAIL && bytes_read == *file_size) {
+        (*file_buf)[*file_size] = '\0';
+        err = REC_ERR_OKAY;
+      } else {
+        ats_free(*file_buf);
+        *file_buf = 0;
+        *file_size = 0;
+      }
+      RecFileClose(h_file);
+    }
+  }
+
+  return err;
+}
+
+//-------------------------------------------------------------------------
+// RecConfigOverrideFromEnvironment
+//-------------------------------------------------------------------------
+const char *
+RecConfigOverrideFromEnvironment(const char * name, const char * value)
+{
+  xptr<char> envname(ats_strdup(name));
+  const char * envval = NULL;
+
+  // Munge foo.bar.config into FOO_BAR_CONFIG.
+  for (char * c = envname; *c != '\0'; ++c) {
+    switch (*c) {
+      case '.': *c = '_'; break;
+      default: *c = ParseRules::ink_toupper(*c); break;
+    }
+  }
+
+  envval = getenv((const char *)envname);
+  if (envval) {
+    return envval;
+  }
+
+  return value;
+}
+
+//-------------------------------------------------------------------------
+// RecParseConfigFile
+//-------------------------------------------------------------------------
+int
+RecConfigFileParse(const char * path, RecConfigEntryCallback handler, bool inc_version)
+{
+  char *fbuf;
+  int fsize;
+
+  const char *line;
+  int line_num;
+
+  char *rec_type_str, *name_str, *data_type_str, *data_str;
+  RecT rec_type;
+  RecDataT data_type;
+
+  Tokenizer line_tok("\r\n");
+  tok_iter_state line_tok_state;
+
+  RecConfigFileEntry *cfe;
+
+  RecDebug(DL_Note, "Reading '%s'", path);
+
+  // watch out, we're altering our g_rec_config_xxx structures
+  ink_mutex_acquire(&g_rec_config_lock);
+
+  if (RecFileImport_Xmalloc(path, &fbuf, &fsize) == REC_ERR_FAIL) {
+    RecLog(DL_Warning, "Could not import '%s'", path);
+    ink_mutex_release(&g_rec_config_lock);
+    return REC_ERR_FAIL;
+  }
+  // clear our g_rec_config_contents_xxx structures
+  while (!queue_is_empty(g_rec_config_contents_llq)) {
+    cfe = (RecConfigFileEntry *) dequeue(g_rec_config_contents_llq);
+    ats_free(cfe->entry);
+    ats_free(cfe);
+  }
+  ink_hash_table_destroy(g_rec_config_contents_ht);
+  g_rec_config_contents_ht = ink_hash_table_create(InkHashTableKeyType_String);
+
+  line_tok.Initialize(fbuf, SHARE_TOKS);
+  line = line_tok.iterFirst(&line_tok_state);
+  line_num = 1;
+  while (line) {
+    char *lc = ats_strdup(line);
+    char *lt = lc;
+    char *ln;
+
+    while (isspace(*lt))
+      lt++;
+    rec_type_str = strtok_r(lt, " \t", &ln);
+
+    // check for blank lines and comments
+    if ((!rec_type_str) || (rec_type_str && (*rec_type_str == '#'))) {
+      goto L_next_line;
+    }
+
+    name_str = strtok_r(NULL, " \t", &ln);
+    data_type_str = strtok_r(NULL, " \t", &ln);
+
+    // extract the string data (a little bit tricker since it can have spaces)
+    if (ln) {
+      // 'ln' will point to either the next token or a bunch of spaces
+      // if the user didn't supply a value (e.g. 'STRING   ').  First
+      // scan past all of the spaces.  If we hit a '\0', then we we
+      // know we didn't have a valid value.  If not, set 'data_str' to
+      // the start of the token and scan until we find the end.  Once
+      // the end is found, back-peddle to remove any trailing spaces.
+      while (isspace(*ln))
+        ln++;
+      if (*ln == '\0') {
+        data_str = NULL;
+      } else {
+        data_str = ln;
+        while (*ln != '\0')
+          ln++;
+        ln--;
+        while (isspace(*ln) && (ln > data_str))
+          ln--;
+        ln++;
+        *ln = '\0';
+      }
+    } else {
+      data_str = NULL;
+    }
+
+    // check for errors
+    if (!(rec_type_str && name_str && data_type_str && data_str)) {
+      RecLog(DL_Warning, "Could not parse line at '%s:%d' -- skipping line: '%s'", path, line_num, line);
+      goto L_next_line;
+    }
+    // record type
+    rec_type = RECT_NULL;
+    if (strcmp(rec_type_str, "CONFIG") == 0) {
+      rec_type = RECT_CONFIG;
+    } else if (strcmp(rec_type_str, "PROCESS") == 0) {
+      rec_type = RECT_PROCESS;
+    } else if (strcmp(rec_type_str, "NODE") == 0) {
+      rec_type = RECT_NODE;
+    } else if (strcmp(rec_type_str, "CLUSTER") == 0) {
+      rec_type = RECT_CLUSTER;
+    } else if (strcmp(rec_type_str, "LOCAL") == 0) {
+      rec_type = RECT_LOCAL;
+    } else {
+      RecLog(DL_Warning, "Unknown record type '%s' at '%s:%d' -- skipping line", rec_type_str, path, line_num);
+      goto L_next_line;
+    }
+
+    // data_type
+    data_type = RECD_NULL;
+    if (strcmp(data_type_str, "INT") == 0) {
+      data_type = RECD_INT;
+    } else if (strcmp(data_type_str, "FLOAT") == 0) {
+      data_type = RECD_FLOAT;
+    } else if (strcmp(data_type_str, "STRING") == 0) {
+      data_type = RECD_STRING;
+    } else if (strcmp(data_type_str, "COUNTER") == 0) {
+      data_type = RECD_COUNTER;
+    } else {
+      RecLog(DL_Warning, "Unknown data type '%s' at '%s:%d' -- skipping line", data_type_str, path, line_num);
+      goto L_next_line;
+    }
+
+    // OK, we parsed the record, send it to the handler ...
+    handler(rec_type, data_type, name_str, RecConfigOverrideFromEnvironment(name_str, data_str), inc_version);
+
+    // update our g_rec_config_contents_xxx
+    cfe = (RecConfigFileEntry *)ats_malloc(sizeof(RecConfigFileEntry));
+    cfe->entry_type = RECE_RECORD;
+    cfe->entry = ats_strdup(name_str);
+    enqueue(g_rec_config_contents_llq, (void *) cfe);
+    ink_hash_table_insert(g_rec_config_contents_ht, name_str, NULL);
+    goto L_done;
+
+  L_next_line:
+    // store this line into g_rec_config_contents_llq so that we can
+    // write it out later
+    cfe = (RecConfigFileEntry *)ats_malloc(sizeof(RecConfigFileEntry));
+    cfe->entry_type = RECE_COMMENT;
+    cfe->entry = ats_strdup(line);
+    enqueue(g_rec_config_contents_llq, (void *) cfe);
+
+  L_done:
+    line = line_tok.iterNext(&line_tok_state);
+    line_num++;
+    ats_free(lc);
+  }
+
+  ink_mutex_release(&g_rec_config_lock);
+  ats_free(fbuf);
+
+  return REC_ERR_OKAY;
+}
diff --git a/lib/records/RecCore.cc b/lib/records/RecCore.cc
new file mode 100644
index 00000000..ca13f8a1
--- /dev/null
+++ b/lib/records/RecCore.cc
@@ -0,0 +1,1218 @@
+/** @file
+
+  Record core definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "P_RecFile.h"
+#include "P_RecCore.h"
+#include "P_RecUtils.h"
+#include "P_RecTree.h"
+#include "I_Layout.h"
+
+static bool g_initialized = false;
+
+RecRecord *g_records = NULL;
+InkHashTable *g_records_ht = NULL;
+ink_rwlock g_records_rwlock;
+int g_num_records = 0;
+
+RecTree *g_records_tree = NULL;
+
+//-------------------------------------------------------------------------
+// register_record
+//-------------------------------------------------------------------------
+static RecRecord *
+register_record(RecT rec_type, const char *name, RecDataT data_type, RecData data_default, RecPersistT persist_type)
+{
+  RecRecord *r = NULL;
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    ink_release_assert(r->rec_type == rec_type);
+    ink_release_assert(r->data_type == data_type);
+    // Note: do not set r->data as we want to keep the previous value
+    RecDataSet(r->data_type, &(r->data_default), &(data_default));
+  } else {
+    if ((r = RecAlloc(rec_type, name, data_type)) == NULL) {
+      return NULL;
+    }
+    // Set the r->data to its default value as this is a new record
+    RecDataSet(r->data_type, &(r->data), &(data_default));
+    RecDataSet(r->data_type, &(r->data_default), &(data_default));
+    ink_hash_table_insert(g_records_ht, name, (void *) r);
+
+    if (REC_TYPE_IS_STAT(r->rec_type)) {
+      r->stat_meta.persist_type = persist_type;
+    }
+  }
+
+  // we're now registered
+  r->registered = true;
+  r->version = 0;
+
+  return r;
+}
+
+
+//-------------------------------------------------------------------------
+// link_XXX
+//-------------------------------------------------------------------------
+static int
+link_int(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  RecInt *rec_int = (RecInt *) cookie;
+  ink_atomic_swap(rec_int, data.rec_int);
+  return REC_ERR_OKAY;
+}
+
+static int
+link_int32(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  *((int32_t *) cookie) = (int32_t) data.rec_int;
+  return REC_ERR_OKAY;
+}
+
+static int
+link_uint32(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  *((uint32_t *) cookie) = (uint32_t) data.rec_int;
+  return REC_ERR_OKAY;
+}
+
+static int
+link_float(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  *((RecFloat *) cookie) = data.rec_float;
+  return REC_ERR_OKAY;
+}
+
+static int
+link_counter(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  RecCounter *rec_counter = (RecCounter *) cookie;
+  ink_atomic_swap(rec_counter, data.rec_counter);
+  return REC_ERR_OKAY;
+}
+
+// This is a convenience wrapper, to allow us to treat the RecInt's as a
+// 1-byte entity internally.
+static int
+link_byte(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  RecByte *rec_byte = (RecByte *) cookie;
+  RecByte byte = static_cast<RecByte>(data.rec_int);
+
+  ink_atomic_swap(rec_byte, byte);
+  return REC_ERR_OKAY;
+}
+
+// mimic Config.cc::config_string_alloc_cb
+// cookie e.g. is the DEFAULT_xxx_str value which this functiion keeps up to date with
+// the latest default applied during a config update from records.config
+static int
+link_string_alloc(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  RecString _ss = data.rec_string;
+  RecString _new_value = NULL;
+
+  if (_ss) {
+    _new_value = ats_strdup(_ss);
+  }
+
+  // set new string for DEFAULT_xxx_str tp point to
+  RecString _temp2 = *((RecString *)cookie);
+  *((RecString *)cookie) = _new_value;
+  // free previous string DEFAULT_xxx_str points to
+  ats_free(_temp2);
+
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecCoreInit
+//-------------------------------------------------------------------------
+int
+RecCoreInit(RecModeT mode_type, Diags *_diags)
+{
+  if (g_initialized) {
+    return REC_ERR_OKAY;
+  }
+
+  // set our diags
+  RecSetDiags(_diags);
+
+  // Initialize config file parsing data structures.
+  RecConfigFileInit();
+
+  g_records_tree = new RecTree(NULL);
+  g_num_records = 0;
+
+  // initialize record array for our internal stats (this can be reallocated later)
+  g_records = (RecRecord *)ats_malloc(REC_MAX_RECORDS * sizeof(RecRecord));
+
+  // initialize record hash index
+  g_records_ht = ink_hash_table_create(InkHashTableKeyType_String);
+  ink_rwlock_init(&g_records_rwlock);
+  if (!g_records_ht) {
+    return REC_ERR_FAIL;
+  }
+  // read stats
+  if ((mode_type == RECM_SERVER) || (mode_type == RECM_STAND_ALONE)) {
+    RecReadStatsFile();
+  }
+  // read configs
+  if ((mode_type == RECM_SERVER) || (mode_type == RECM_STAND_ALONE)) {
+    ink_mutex_init(&g_rec_config_lock, NULL);
+    // Import the file into memory; try the following in this order:
+    // ./etc/trafficserver/records.config.shadow
+    // ./records.config.shadow
+    // ./etc/trafficserver/records.config
+    // ./records.config
+    bool file_exists = true;
+    g_rec_config_fpath = Layout::relative_to(Layout::get()->sysconfdir, REC_CONFIG_FILE REC_SHADOW_EXT);
+    if (RecFileExists(g_rec_config_fpath) == REC_ERR_FAIL) {
+      ats_free((char *)g_rec_config_fpath);
+      g_rec_config_fpath = Layout::relative_to(Layout::get()->sysconfdir, REC_CONFIG_FILE);
+      if (RecFileExists(g_rec_config_fpath) == REC_ERR_FAIL) {
+        RecLog(DL_Warning, "Could not find '%s', system will run with defaults\n", REC_CONFIG_FILE);
+        file_exists = false;
+      }
+    }
+    if (file_exists) {
+      RecReadConfigFile(true);
+    }
+  }
+
+  g_initialized = true;
+
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecLinkCnfigXXX
+//-------------------------------------------------------------------------
+int
+RecLinkConfigInt(const char *name, RecInt * rec_int)
+{
+  if (RecGetRecordInt(name, rec_int) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+  return RecRegisterConfigUpdateCb(name, link_int, (void *) rec_int);
+}
+
+int
+RecLinkConfigInt32(const char *name, int32_t * p_int32)
+{
+  return RecRegisterConfigUpdateCb(name, link_int32, (void *) p_int32);
+}
+
+int
+RecLinkConfigUInt32(const char *name, uint32_t * p_uint32)
+{
+  return RecRegisterConfigUpdateCb(name, link_uint32, (void *) p_uint32);
+}
+
+int
+RecLinkConfigFloat(const char *name, RecFloat * rec_float)
+{
+  if (RecGetRecordFloat(name, rec_float) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+  return RecRegisterConfigUpdateCb(name, link_float, (void *) rec_float);
+}
+
+int
+RecLinkConfigCounter(const char *name, RecCounter * rec_counter)
+{
+  if (RecGetRecordCounter(name, rec_counter) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+  return RecRegisterConfigUpdateCb(name, link_counter, (void *) rec_counter);
+}
+
+int
+RecLinkConfigString(const char *name, RecString * rec_string)
+{
+  if (RecGetRecordString_Xmalloc(name, rec_string) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+  return RecRegisterConfigUpdateCb(name, link_string_alloc, (void *) rec_string);
+}
+
+int
+RecLinkConfigByte(const char *name, RecByte * rec_byte)
+{
+  if (RecGetRecordByte(name, rec_byte) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+  return RecRegisterConfigUpdateCb(name, link_byte, (void *) rec_byte);
+}
+
+int
+RecLinkConfigBool(const char *name, RecBool * rec_bool)
+{
+  if (RecGetRecordBool(name, rec_bool) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+  return RecRegisterConfigUpdateCb(name, link_byte, (void *) rec_bool);
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterConfigUpdateCb
+//-------------------------------------------------------------------------
+int
+RecRegisterConfigUpdateCb(const char *name, RecConfigUpdateCb update_cb, void *cookie)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r;
+
+  ink_rwlock_rdlock(&g_records_rwlock);
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+      /* -- upgrade to support a list of callback functions
+         if (!(r->config_meta.update_cb)) {
+         r->config_meta.update_cb = update_cb;
+         r->config_meta.update_cookie = cookie;
+         err = REC_ERR_OKAY;
+         }
+       */
+
+      RecConfigUpdateCbList *new_callback = (RecConfigUpdateCbList *)ats_malloc(sizeof(RecConfigUpdateCbList));
+      memset(new_callback, 0, sizeof(RecConfigUpdateCbList));
+      new_callback->update_cb = update_cb;
+      new_callback->update_cookie = cookie;
+
+      new_callback->next = NULL;
+
+      ink_assert(new_callback);
+      if (!r->config_meta.update_cb_list) {
+        r->config_meta.update_cb_list = new_callback;
+      } else {
+        RecConfigUpdateCbList *cur_callback = NULL;
+        RecConfigUpdateCbList *prev_callback = NULL;
+        for (cur_callback = r->config_meta.update_cb_list; cur_callback; cur_callback = cur_callback->next) {
+          prev_callback = cur_callback;
+        }
+        ink_assert(prev_callback);
+        ink_assert(!prev_callback->next);
+        prev_callback->next = new_callback;
+      }
+      err = REC_ERR_OKAY;
+    }
+
+    rec_mutex_release(&(r->lock));
+  }
+
+  ink_rwlock_unlock(&g_records_rwlock);
+
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// RecGetRecordXXX
+//-------------------------------------------------------------------------
+int
+RecGetRecordInt(const char *name, RecInt *rec_int, bool lock)
+{
+  int err;
+  RecData data;
+  if ((err = RecGetRecord_Xmalloc(name, RECD_INT, &data, lock)) == REC_ERR_OKAY)
+    *rec_int = data.rec_int;
+  return err;
+}
+
+int
+RecGetRecordFloat(const char *name, RecFloat * rec_float, bool lock)
+{
+  int err;
+  RecData data;
+  if ((err = RecGetRecord_Xmalloc(name, RECD_FLOAT, &data, lock)) == REC_ERR_OKAY)
+    *rec_float = data.rec_float;
+  return err;
+}
+
+int
+RecGetRecordString(const char *name, char *buf, int buf_len, bool lock)
+{
+  int err = REC_ERR_OKAY;
+  RecRecord *r;
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (!r->registered || (r->data_type != RECD_STRING)) {
+      err = REC_ERR_FAIL;
+    } else {
+      if (r->data.rec_string == NULL) {
+        buf[0] = '\0';
+      } else {
+        ink_strlcpy(buf, r->data.rec_string, buf_len);
+      }
+    }
+    rec_mutex_release(&(r->lock));
+  } else {
+    err = REC_ERR_FAIL;
+  }
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+  return err;
+}
+
+int
+RecGetRecordString_Xmalloc(const char *name, RecString * rec_string, bool lock)
+{
+  int err;
+  RecData data;
+  if ((err = RecGetRecord_Xmalloc(name, RECD_STRING, &data, lock)) == REC_ERR_OKAY)
+    *rec_string = data.rec_string;
+  return err;
+}
+
+int
+RecGetRecordCounter(const char *name, RecCounter * rec_counter, bool lock)
+{
+  int err;
+  RecData data;
+  if ((err = RecGetRecord_Xmalloc(name, RECD_COUNTER, &data, lock)) == REC_ERR_OKAY)
+    *rec_counter = data.rec_counter;
+  return err;
+}
+
+int
+RecGetRecordByte(const char *name, RecByte *rec_byte, bool lock)
+{
+  int err;
+  RecData data;
+  if ((err = RecGetRecord_Xmalloc(name, RECD_INT, &data, lock)) == REC_ERR_OKAY)
+    *rec_byte = data.rec_int;
+  return err;
+}
+
+int
+RecGetRecordBool(const char *name, RecBool *rec_bool, bool lock)
+{
+  int err;
+  RecData data;
+  if ((err = RecGetRecord_Xmalloc(name, RECD_INT, &data, lock)) == REC_ERR_OKAY)
+    *rec_bool = 0 != data.rec_int;
+  return err;
+}
+
+//-------------------------------------------------------------------------
+// RecGetRec Attributes
+//-------------------------------------------------------------------------
+int
+RecGetRecordType(const char *name, RecT * rec_type, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    *rec_type = r->rec_type;
+    err = REC_ERR_OKAY;
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+int
+RecGetRecordDataType(const char *name, RecDataT * data_type, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (!r->registered) {
+      err = REC_ERR_FAIL;
+    } else {
+      *data_type = r->data_type;
+      err = REC_ERR_OKAY;
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+int
+RecGetRecordPersistenceType(const char *name, RecPersistT * persist_type, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  *persist_type = RECP_NULL;
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_STAT(r->rec_type)) {
+      *persist_type = r->stat_meta.persist_type;
+      err = REC_ERR_OKAY;
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+int
+RecGetRecordOrderAndId(const char *name, int* order, int* id, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    if (r->registered) {
+      rec_mutex_acquire(&(r->lock));
+      if (order)
+        *order = r->order;
+      if (id)
+        *id = r->rsb_id;
+      err = REC_ERR_OKAY;
+      rec_mutex_release(&(r->lock));
+    }
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+int
+RecGetRecordUpdateType(const char *name, RecUpdateT *update_type, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+      *update_type = r->config_meta.update_type;
+      err = REC_ERR_OKAY;
+    } else {
+      ink_assert(!"rec_type is not CONFIG");
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+int
+RecGetRecordCheckType(const char *name, RecCheckT *check_type, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+      *check_type = r->config_meta.check_type;
+      err = REC_ERR_OKAY;
+    } else {
+      ink_assert(!"rec_type is not CONFIG");
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+int
+RecGetRecordCheckExpr(const char *name, char **check_expr, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+      *check_expr = r->config_meta.check_expr;
+      err = REC_ERR_OKAY;
+    } else {
+      ink_assert(!"rec_type is not CONFIG");
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+int
+RecGetRecordDefaultDataString_Xmalloc(char *name, char **buf, bool lock)
+{
+  int err;
+  RecRecord *r = NULL;
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    *buf = (char *)ats_malloc(sizeof(char) * 1024);
+    memset(*buf, 0, 1024);
+    err = REC_ERR_OKAY;
+
+    switch (r->data_type) {
+    case RECD_INT:
+      snprintf(*buf, 1023, "%" PRId64 "", r->data_default.rec_int);
+      break;
+    case RECD_FLOAT:
+      snprintf(*buf, 1023, "%f", r->data_default.rec_float);
+      break;
+    case RECD_STRING:
+      if (r->data_default.rec_string) {
+        ink_strlcpy(*buf, r->data_default.rec_string, 1024);
+      } else {
+        ats_free(*buf);
+        *buf = NULL;
+      }
+      break;
+    case RECD_COUNTER:
+      snprintf(*buf, 1023, "%" PRId64 "", r->data_default.rec_counter);
+      break;
+    default:
+      ink_assert(!"Unexpected RecD type");
+      ats_free(*buf);
+      *buf = NULL;
+      break;
+    }
+  } else {
+    err = REC_ERR_FAIL;
+  }
+
+  return err;
+}
+
+
+int
+RecGetRecordAccessType(const char *name, RecAccessT *access, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    *access = r->config_meta.access_type;
+    err = REC_ERR_OKAY;
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+int
+RecSetRecordAccessType(const char *name, RecAccessT access, bool lock)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r = NULL;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    r->config_meta.access_type = access;
+    err = REC_ERR_OKAY;
+    rec_mutex_release(&(r->lock));
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterStat
+//-------------------------------------------------------------------------
+RecRecord *
+RecRegisterStat(RecT rec_type, const char *name, RecDataT data_type, RecData data_default, RecPersistT persist_type)
+{
+  RecRecord *r = NULL;
+
+  ink_rwlock_wrlock(&g_records_rwlock);
+  if ((r = register_record(rec_type, name, data_type, data_default, persist_type)) != NULL) {
+    // If the persistence type we found in the records hash is not the same as the persistence
+    // type we are registering, then that means that it changed between the previous software
+    // version and the current version. If the metric changed to non-persistent, reset to the
+    // new default value.
+    if ((r->stat_meta.persist_type == RECP_NULL ||r->stat_meta.persist_type == RECP_PERSISTENT) &&
+        persist_type == RECP_NON_PERSISTENT) {
+      RecDebug(DL_Debug, "resetting default value for formerly persisted stat '%s'", r->name);
+      RecDataSet(r->data_type, &(r->data), &(data_default));
+    }
+
+    r->stat_meta.persist_type = persist_type;
+  } else {
+    ink_assert(!"Can't register record!");
+    RecDebug(DL_Warning, "failed to register '%s' record", name);
+  }
+  ink_rwlock_unlock(&g_records_rwlock);
+
+  return r;
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterConfig
+//-------------------------------------------------------------------------
+RecRecord *
+RecRegisterConfig(RecT rec_type, const char *name, RecDataT data_type,
+                  RecData data_default, RecUpdateT update_type,
+                  RecCheckT check_type, const char *check_expr, RecAccessT access_type)
+{
+  RecRecord *r;
+  ink_rwlock_wrlock(&g_records_rwlock);
+  if ((r = register_record(rec_type, name, data_type, data_default, RECP_NULL)) != NULL) {
+    // Note: do not modify 'record->config_meta.update_required'
+    r->config_meta.update_type = update_type;
+    r->config_meta.check_type = check_type;
+    if (r->config_meta.check_expr) {
+      ats_free(r->config_meta.check_expr);
+    }
+    r->config_meta.check_expr = ats_strdup(check_expr);
+    r->config_meta.update_cb_list = NULL;
+    r->config_meta.access_type = access_type;
+  }
+  ink_rwlock_unlock(&g_records_rwlock);
+
+  return r;
+}
+
+
+//-------------------------------------------------------------------------
+// RecGetRecord_Xmalloc
+//-------------------------------------------------------------------------
+int
+RecGetRecord_Xmalloc(const char *name, RecDataT data_type, RecData *data, bool lock)
+{
+  int err = REC_ERR_OKAY;
+  RecRecord *r;
+
+  if (lock) {
+    ink_rwlock_rdlock(&g_records_rwlock);
+  }
+
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (!r->registered || (r->data_type != data_type)) {
+      err = REC_ERR_FAIL;
+    } else {
+      // Clear the caller's record just in case it has trash in it.
+      // Passing trashy records to RecDataSet will cause confusion.
+      memset(data, 0, sizeof(RecData));
+      RecDataSet(data_type, data, &(r->data));
+    }
+    rec_mutex_release(&(r->lock));
+  } else {
+    err = REC_ERR_FAIL;
+  }
+
+  if (lock) {
+    ink_rwlock_unlock(&g_records_rwlock);
+  }
+
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// RecForceInsert
+//-------------------------------------------------------------------------
+RecRecord *
+RecForceInsert(RecRecord * record)
+{
+  RecRecord *r = NULL;
+  bool r_is_a_new_record;
+
+  ink_rwlock_wrlock(&g_records_rwlock);
+
+  if (ink_hash_table_lookup(g_records_ht, record->name, (void **) &r)) {
+    r_is_a_new_record = false;
+    rec_mutex_acquire(&(r->lock));
+    r->rec_type = record->rec_type;
+    r->data_type = record->data_type;
+  } else {
+    r_is_a_new_record = true;
+    if ((r = RecAlloc(record->rec_type, record->name, record->data_type)) == NULL) {
+      ink_rwlock_unlock(&g_records_rwlock);
+      return NULL;
+    }
+  }
+
+  // set the record value
+  RecDataSet(r->data_type, &(r->data), &(record->data));
+  RecDataSet(r->data_type, &(r->data_default), &(record->data_default));
+  r->registered = record->registered;
+  if (REC_TYPE_IS_STAT(r->rec_type)) {
+    r->stat_meta.persist_type = record->stat_meta.persist_type;
+    r->stat_meta.data_raw = record->stat_meta.data_raw;
+  } else if (REC_TYPE_IS_CONFIG(r->rec_type)) {
+    r->config_meta.update_required = record->config_meta.update_required;
+    r->config_meta.update_type = record->config_meta.update_type;
+    r->config_meta.check_type = record->config_meta.check_type;
+    ats_free(r->config_meta.check_expr);
+    r->config_meta.check_expr = ats_strdup(record->config_meta.check_expr);
+    r->config_meta.access_type = record->config_meta.access_type;
+  }
+
+  if (r_is_a_new_record) {
+    ink_hash_table_insert(g_records_ht, r->name, (void *) r);
+  } else {
+    rec_mutex_release(&(r->lock));
+  }
+
+  ink_rwlock_unlock(&g_records_rwlock);
+
+  return r;
+}
+
+
+//-------------------------------------------------------------------------
+// RecDumpRecordsHt
+//-------------------------------------------------------------------------
+
+static void
+debug_record_callback(RecT rec_type, void *edata, int registered, const char *name, int data_type, RecData *datum)
+{
+  switch(data_type) {
+  case RECD_INT:
+    RecDebug(DL_Note, "  ([%d] '%s', '%" PRId64 "')", registered, name, datum->rec_int);
+    break;
+  case RECD_FLOAT:
+    RecDebug(DL_Note, "  ([%d] '%s', '%f')", registered, name, datum->rec_float);
+    break;
+  case RECD_STRING:
+    RecDebug(DL_Note, "  ([%d] '%s', '%s')",
+             registered, name, datum->rec_string ? datum->rec_string : "NULL");
+    break;
+  case RECD_COUNTER:
+    RecDebug(DL_Note, "  ([%d] '%s', '%" PRId64 "')", registered, name, datum->rec_counter);
+    break;
+  default:
+    RecDebug(DL_Note, "  ([%d] '%s', <? ? ?>)", registered, name);
+    break;
+  }
+}
+void
+RecDumpRecords(RecT rec_type, RecDumpEntryCb callback, void *edata)
+{
+  int i, num_records;
+
+  num_records = g_num_records;
+  for (i = 0; i < num_records; i++) {
+    RecRecord *r = &(g_records[i]);
+    if ((rec_type == RECT_NULL) || (rec_type & r->rec_type)) {
+      rec_mutex_acquire(&(r->lock));
+      callback(rec_type, edata, r->registered, r->name, r->data_type, &r->data);
+      rec_mutex_release(&(r->lock));
+    }
+  }
+}
+
+void
+RecDumpRecordsHt(RecT rec_type) {
+  RecDebug(DL_Note, "Dumping Records:");
+  RecDumpRecords(rec_type, debug_record_callback, NULL);
+}
+
+void
+RecGetRecordTree(char *subtree)
+{
+  RecTree *tree = g_records_tree;
+  if (subtree) {
+    tree = tree->rec_tree_get(subtree);
+  }
+  tree->print();
+}
+
+void
+RecGetRecordList(char *var, char ***buffer, int *count)
+{
+  g_records_tree->rec_tree_get_list(&(*var), &(*buffer), &(*count));
+}
+
+
+//-------------------------------------------------------------------------
+// RecGetRecordPrefix_Xmalloc
+//
+//     mimics/replaces proxy/StatSystem.cc::stat_callback().
+//     returns the number of variables name match the prefix.
+//-------------------------------------------------------------------------
+int
+RecGetRecordPrefix_Xmalloc(char *prefix, char **buf, int *buf_len)
+{
+  int num_records = g_num_records;
+  int result_size = num_records * 256;  /* estimate buffer size */
+  int num_matched = 0;
+  char *result = NULL;
+
+  result = (char *)ats_malloc(result_size * sizeof(char));
+  memset(result, 0, result_size * sizeof(char));
+
+  int i;
+  int total_bytes_written = 0;
+  int error = 0;
+  for (i = 0; !error && i < num_records; i++) {
+    int bytes_written = 0;
+    int bytes_avail = result_size - total_bytes_written;
+    RecRecord *r = &(g_records[i]);
+    if (strncmp(prefix, r->name, strlen(prefix)) == 0) {
+      rec_mutex_acquire(&(r->lock));
+      switch (r->data_type) {
+      case RECD_INT:
+        num_matched++;
+        bytes_written = snprintf(result + total_bytes_written, bytes_avail, "%s=%" PRId64 "\r\n", r->name, r->data.rec_int);
+        break;
+      case RECD_FLOAT:
+        num_matched++;
+        bytes_written = snprintf(result + total_bytes_written, bytes_avail, "%s=%f\r\n", r->name, r->data.rec_float);
+        break;
+      case RECD_STRING:
+        num_matched++;
+        bytes_written = snprintf(result + total_bytes_written, bytes_avail, "%s=%s\r\n", r->name, r->data.rec_string ? r->data.rec_string : "NULL");
+        break;
+      case RECD_COUNTER:
+        num_matched++;
+        bytes_written = snprintf(result + total_bytes_written, bytes_avail, "%s=%" PRId64 "\r\n", r->name, r->data.rec_int);
+        break;
+      default:
+        break;
+      }
+
+      if(bytes_written <= 0 || bytes_written > bytes_avail) {
+        error = 1;
+      } else
+        total_bytes_written += bytes_written;
+
+      rec_mutex_release(&(r->lock));
+    }
+  }
+
+  if(error || total_bytes_written == result_size) {
+    RecLog(DL_Error, "Stat system was unable to fully generate stat list, size exceeded limit of %d", result_size);
+  }
+
+  *buf = result;
+  *buf_len = strlen(result);
+
+  return num_matched;
+}
+
+
+//-------------------------------------------------------------------------
+// Backwards compatibility ... TODO: Should eliminate these
+//-------------------------------------------------------------------------
+RecInt
+REC_ConfigReadInteger(const char *name)
+{
+  RecInt t = 0;
+  RecGetRecordInt(name, &t);
+  return t;
+}
+
+char *
+REC_ConfigReadString(const char *name)
+{
+  char *t = 0;
+  RecGetRecordString_Xmalloc(name, (RecString *) & t);
+  return t;
+}
+
+RecFloat
+REC_ConfigReadFloat(const char *name)
+{
+  RecFloat t = 0;
+  RecGetRecordFloat(name, (RecFloat *) & t);
+  return t;
+}
+
+RecCounter
+REC_ConfigReadCounter(const char *name)
+{
+  RecCounter t = 0;
+  RecGetRecordCounter(name, (RecCounter *) & t);
+  return t;
+}
+
+
+//-------------------------------------------------------------------------
+// Backwards compatibility. TODO: Should remove these.
+//-------------------------------------------------------------------------
+RecInt
+REC_readInteger(const char *name, bool * found, bool lock)
+{
+  ink_assert(name);
+  RecInt _tmp = 0;
+  bool _found;
+  _found = (RecGetRecordInt(name, &_tmp, lock) == REC_ERR_OKAY);
+  if (found)
+    *found = _found;
+  return _tmp;
+}
+
+RecFloat
+REC_readFloat(char *name, bool * found, bool lock)
+{
+  ink_assert(name);
+  RecFloat _tmp = 0.0;
+  bool _found;
+  _found = (RecGetRecordFloat(name, &_tmp, lock) == REC_ERR_OKAY);
+  if (found)
+    *found = _found;
+  return _tmp;
+}
+
+RecCounter
+REC_readCounter(char *name, bool * found, bool lock)
+{
+  ink_assert(name);
+  RecCounter _tmp = 0;
+  bool _found;
+  _found = (RecGetRecordCounter(name, &_tmp, lock) == REC_ERR_OKAY);
+  if (found)
+    *found = _found;
+  return _tmp;
+}
+
+RecString
+REC_readString(const char *name, bool * found, bool lock)
+{
+  ink_assert(name);
+  RecString _tmp = NULL;
+  bool _found;
+  _found = (RecGetRecordString_Xmalloc(name, &_tmp, lock) == REC_ERR_OKAY);
+  if (found)
+    *found = _found;
+  return _tmp;
+}
+
+//-------------------------------------------------------------------------
+// RecConfigReadRuntimeDir
+//-------------------------------------------------------------------------
+char *
+RecConfigReadRuntimeDir()
+{
+  char buf[PATH_NAME_MAX + 1];
+
+  buf[0] = '\0';
+  RecGetRecordString("proxy.config.local_state_dir", buf, PATH_NAME_MAX);
+  if (strlen(buf) > 0) {
+    return Layout::get()->relative(buf);
+  } else {
+    return ats_strdup(Layout::get()->runtimedir);
+  }
+}
+
+//-------------------------------------------------------------------------
+// RecConfigReadLogDir
+//-------------------------------------------------------------------------
+char *
+RecConfigReadLogDir()
+{
+  char buf[PATH_NAME_MAX + 1];
+
+  buf[0] = '\0';
+  RecGetRecordString("proxy.config.log.logfile_dir", buf, PATH_NAME_MAX);
+  if (strlen(buf) > 0) {
+    return Layout::get()->relative(buf);
+  } else {
+    return ats_strdup(Layout::get()->logdir);
+  }
+}
+
+//-------------------------------------------------------------------------
+// RecConfigReadBinDir
+//-------------------------------------------------------------------------
+char *
+RecConfigReadBinDir()
+{
+  char buf[PATH_NAME_MAX + 1];
+
+  buf[0] = '\0';
+  RecGetRecordString("proxy.config.bin_path", buf, PATH_NAME_MAX);
+  if (strlen(buf) > 0) {
+    return Layout::get()->relative(buf);
+  } else {
+    return ats_strdup(Layout::get()->bindir);
+  }
+}
+
+//-------------------------------------------------------------------------
+// RecConfigReadSnapshotDir.
+//-------------------------------------------------------------------------
+char *
+RecConfigReadSnapshotDir()
+{
+  char buf[PATH_NAME_MAX + 1];
+
+  buf[0] = '\0';
+  RecGetRecordString("proxy.config.snapshot_dir", buf, PATH_NAME_MAX);
+  if (strlen(buf) > 0) {
+    return Layout::get()->relative_to(Layout::get()->sysconfdir, buf);
+  } else {
+    return Layout::get()->relative_to(Layout::get()->sysconfdir, "snapshots");
+  }
+}
+
+//-------------------------------------------------------------------------
+// RecConfigReadConfigPath
+//-------------------------------------------------------------------------
+char *
+RecConfigReadConfigPath(const char * file_variable, const char * default_value)
+{
+  char buf[PATH_NAME_MAX + 1];
+
+  buf[0] = '\0';
+  RecGetRecordString(file_variable, buf, PATH_NAME_MAX);
+  if (strlen(buf) > 0) {
+    return Layout::get()->relative_to(Layout::get()->sysconfdir, buf);
+  }
+
+  if (default_value) {
+    return Layout::get()->relative_to(Layout::get()->sysconfdir, default_value);
+  }
+
+  return NULL;
+}
+
+//-------------------------------------------------------------------------
+// RecConfigReadPersistentStatsPath
+//-------------------------------------------------------------------------
+char *
+RecConfigReadPersistentStatsPath()
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  return Layout::relative_to(rundir, REC_RAW_STATS_FILE);
+}
+
+//-------------------------------------------------------------------------
+// REC_SignalManager (TS)
+//-------------------------------------------------------------------------
+#if defined(LOCAL_MANAGER)
+
+#include "LocalManager.h"
+
+void
+RecSignalManager(int /* id ATS_UNUSED */, const char */* msg ATS_UNUSED */)
+{
+}
+
+int
+RecRegisterManagerCb(int _signal, RecManagerCb _fn, void *_data)
+{
+  return lmgmt->registerMgmtCallback(_signal, _fn, _data);
+}
+
+#elif defined(PROCESS_MANAGER)
+
+#include "ProcessManager.h"
+
+void
+RecSignalManager(int id, const char *msg)
+{
+  ink_assert(pmgmt);
+  pmgmt->signalManager(id, msg);
+}
+
+int
+RecRegisterManagerCb(int _signal, RecManagerCb _fn, void *_data)
+{
+  return pmgmt->registerMgmtCallback(_signal, _fn, _data);
+}
+
+#endif // LOCAL_MANAGER
diff --git a/lib/records/RecDebug.cc b/lib/records/RecDebug.cc
new file mode 100644
index 00000000..836ff237
--- /dev/null
+++ b/lib/records/RecDebug.cc
@@ -0,0 +1,81 @@
+/** @file
+
+  Record debug and logging
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_RecUtils.h"
+#include "P_RecCore.h"
+
+static Diags *g_diags = NULL;
+
+//-------------------------------------------------------------------------
+// RecSetDiags
+//-------------------------------------------------------------------------
+int
+RecSetDiags(Diags * _diags)
+{
+  // Warning! It's very dangerous to change diags on the fly!  This
+  // function only exists so that we can boot-strap TM on startup.
+  ink_atomic_swap(&g_diags, _diags);
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecLog
+//-------------------------------------------------------------------------
+void
+RecLog(DiagsLevel dl, const char *format_string, ...)
+{
+  va_list ap;
+
+  va_start(ap, format_string);
+  if (g_diags) {
+    g_diags->log_va(NULL, dl, NULL, format_string, ap);
+  }
+  va_end(ap);
+}
+
+
+//-------------------------------------------------------------------------
+// RecDebug
+//-------------------------------------------------------------------------
+void
+RecDebug(DiagsLevel dl, const char *format_string, ...)
+{
+  va_list ap;
+
+  va_start(ap, format_string);
+  if (g_diags) {
+    g_diags->log_va("rec", dl, NULL, format_string, ap);
+  }
+  va_end(ap);
+}
+
+
+//-------------------------------------------------------------------------
+// RecDebugOff
+//-------------------------------------------------------------------------
+void
+RecDebugOff()
+{
+  g_diags = NULL;
+}
diff --git a/lib/records/RecFile.cc b/lib/records/RecFile.cc
new file mode 100644
index 00000000..1bb97507
--- /dev/null
+++ b/lib/records/RecFile.cc
@@ -0,0 +1,306 @@
+/** @file
+
+  Record compatibility definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "P_RecFile.h"
+#include "P_RecDefs.h"
+#include "P_RecUtils.h"
+
+//-------------------------------------------------------------------------
+// RecFileOpenR
+//-------------------------------------------------------------------------
+
+RecHandle
+RecFileOpenR(const char *file)
+{
+  RecHandle h_file;
+  return ((h_file =::open(file, O_RDONLY)) <= 0) ? REC_HANDLE_INVALID : h_file;
+}
+
+//-------------------------------------------------------------------------
+// RecFileOpenW
+//-------------------------------------------------------------------------
+
+RecHandle
+RecFileOpenW(const char *file)
+{
+  RecHandle h_file;
+
+  if ((h_file =::open(file, O_WRONLY | O_TRUNC | O_CREAT, 0600)) < 0) {
+    return REC_HANDLE_INVALID;
+  }
+  fcntl(h_file, F_SETFD, 1);
+  return h_file;
+}
+
+//-------------------------------------------------------------------------
+// RecFileSync
+//-------------------------------------------------------------------------
+
+int RecFileSync(RecHandle h_file)
+{
+  return (fsync(h_file) == 0) ? REC_ERR_OKAY : REC_ERR_FAIL;
+}
+
+//-------------------------------------------------------------------------
+// RecFileClose
+//-------------------------------------------------------------------------
+
+int
+RecFileClose(RecHandle h_file)
+{
+  return (close(h_file) == 0) ? REC_ERR_OKAY : REC_ERR_FAIL;
+}
+
+//-------------------------------------------------------------------------
+// RecFileRead
+//-------------------------------------------------------------------------
+
+int
+RecFileRead(RecHandle h_file, char *buf, int size, int *bytes_read)
+{
+  if ((*bytes_read =::read(h_file, buf, size)) <= 0) {
+    *bytes_read = 0;
+    return REC_ERR_FAIL;
+  }
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecFileWrite
+//-------------------------------------------------------------------------
+
+int
+RecFileWrite(RecHandle h_file, char *buf, int size, int *bytes_written)
+{
+  if ((*bytes_written =::write(h_file, buf, size)) < 0) {
+    *bytes_written = 0;
+    return REC_ERR_FAIL;
+  }
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecFileGetSize
+//-------------------------------------------------------------------------
+
+int
+RecFileGetSize(RecHandle h_file)
+{
+  struct stat fileStats;
+  fstat(h_file, &fileStats);
+  return (int) fileStats.st_size;
+}
+
+//-------------------------------------------------------------------------
+// RecFileExists
+//-------------------------------------------------------------------------
+
+int
+RecFileExists(const char *file)
+{
+  RecHandle h_file;
+  if ((h_file = RecFileOpenR(file)) == REC_HANDLE_INVALID) {
+    return REC_ERR_FAIL;
+  }
+  RecFileClose(h_file);
+  return REC_ERR_OKAY;
+
+}
+
+//-------------------------------------------------------------------------
+// RecPipeCreate
+//-------------------------------------------------------------------------
+
+RecHandle
+RecPipeCreate(const char *base_path, const char *name)
+{
+
+  RecHandle listenfd;
+  RecHandle acceptfd;
+  struct sockaddr_un servaddr;
+  struct sockaddr_un cliaddr;
+  int servaddr_len;
+  socklen_t cliaddr_len;
+
+  // first, let's disable SIGPIPE (move out later!)
+  struct sigaction act, oact;
+  act.sa_handler = SIG_IGN;
+  sigemptyset(&act.sa_mask);
+  act.sa_flags = 0;
+  act.sa_flags |= SA_RESTART;
+  sigaction(SIGPIPE, &act, &oact);
+
+  // construct a path/filename for the pipe
+#define SEPERATOR "/"
+  char path[PATH_NAME_MAX];
+  snprintf(path, sizeof(path), "%s%s%s", base_path, SEPERATOR, name);
+#undef SEPERATOR
+  if (strlen(path) > (sizeof(servaddr.sun_path) - 1)) {
+    RecLog(DL_Warning, "[RecPipeCreate] Path name too long; exiting\n");
+    return REC_HANDLE_INVALID;
+  }
+
+  unlink(path);
+
+  if ((listenfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+    RecLog(DL_Warning, "[RecPipeCreate] socket error\n");
+    return REC_HANDLE_INVALID;
+  }
+  // set so that child process doesn't inherit our fd
+  if (fcntl(listenfd, F_SETFD, 1) < 0) {
+    RecLog(DL_Warning, "[RecPipeCreate] fcntl error\n");
+    return REC_HANDLE_INVALID;
+  }
+
+  memset(&servaddr, 0, sizeof(servaddr));
+  servaddr.sun_family = AF_UNIX;
+  ink_strlcpy(servaddr.sun_path, path, sizeof(servaddr.sun_path));
+
+  int optval = 1;
+  if (setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, (char *) &optval, sizeof(int)) < 0) {
+    RecLog(DL_Warning, "[RecPipeCreate] setsockopt error\n");
+    return REC_HANDLE_INVALID;
+  }
+
+  servaddr_len = sizeof(servaddr.sun_family) + strlen(servaddr.sun_path);
+  if ((bind(listenfd, (struct sockaddr *) &servaddr, servaddr_len)) < 0) {
+    RecLog(DL_Warning, "[RecPipeCreate] bind error\n");
+    return REC_HANDLE_INVALID;
+  }
+  // listen, backlog of 1 (expecting only one client)
+  if ((listen(listenfd, 1)) < 0) {
+    RecLog(DL_Warning, "[RecPipeCreate] listen error\n");
+    return REC_HANDLE_INVALID;
+  }
+  // block until we get a connection from the other side
+  cliaddr_len = sizeof(cliaddr);
+  if ((acceptfd = accept(listenfd, (struct sockaddr *) &cliaddr,
+                         &cliaddr_len)) < 0) {
+    return REC_HANDLE_INVALID;
+  }
+
+  close(listenfd);
+
+  return acceptfd;
+}
+
+//-------------------------------------------------------------------------
+// RecPipeConnect
+//-------------------------------------------------------------------------
+
+RecHandle
+RecPipeConnect(const char *base_path, const char *name)
+{
+
+  RecHandle sockfd;
+  struct sockaddr_un servaddr;
+  int servaddr_len;
+
+  // construct a path/filename for the pipe
+#define SEPERATOR "/"
+  char path[PATH_NAME_MAX];
+  snprintf(path, sizeof(path), "%s%s%s", base_path, SEPERATOR, name);
+#undef SEPERATOR
+  if (strlen(path) > (sizeof(servaddr.sun_path) - 1)) {
+    RecLog(DL_Warning, "[RecPipeConnect] Path name too long\n");
+    return REC_HANDLE_INVALID;
+  }
+  // Setup Connection to LocalManager */
+  memset((char *) &servaddr, 0, sizeof(servaddr));
+  servaddr.sun_family = AF_UNIX;
+  ink_strlcpy(servaddr.sun_path, path, sizeof(servaddr.sun_path));
+  servaddr_len = sizeof(servaddr.sun_family) + strlen(servaddr.sun_path);
+
+  if ((sockfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+    RecLog(DL_Warning, "[RecPipeConnect] socket error\n");
+    return REC_HANDLE_INVALID;
+  }
+  // set so that child process doesn't inherit our fd
+  if (fcntl(sockfd, F_SETFD, 1) < 0) {
+    RecLog(DL_Warning, "[RecPipeConnect] fcntl error\n");
+    return REC_HANDLE_INVALID;
+  }
+  // blocking connect
+  if ((connect(sockfd, (struct sockaddr *) &servaddr, servaddr_len)) < 0) {
+    RecLog(DL_Warning, "[RecPipeConnect] connect error\n");
+    return REC_HANDLE_INVALID;
+  }
+
+  return sockfd;
+}
+
+//-------------------------------------------------------------------------
+// RecPipeRead
+//-------------------------------------------------------------------------
+
+int
+RecPipeRead(RecHandle h_pipe, char *buf, int size)
+{
+  int bytes_read = 0;
+  int bytes_wanted = size;
+  char *p = buf;
+  while (bytes_wanted > 0) {
+    bytes_read = read(h_pipe, p, bytes_wanted);
+    if (bytes_read < 0) {
+      // FIXME: something more intelligent please!
+      return REC_ERR_FAIL;
+    }
+    bytes_wanted -= bytes_read;
+    p += bytes_read;
+  }
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecPipeWrite
+//-------------------------------------------------------------------------
+
+int
+RecPipeWrite(RecHandle h_pipe, char *buf, int size)
+{
+  int bytes_written = 0;
+  int bytes_to_write = size;
+  char *p = buf;
+  while (bytes_to_write > 0) {
+    bytes_written = write(h_pipe, p, bytes_to_write);
+    if (bytes_written < 0) {
+      // FIXME: something more intelligent please!
+      return REC_ERR_FAIL;
+    }
+    bytes_to_write -= bytes_written;
+    p += bytes_written;
+  }
+
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecPipeClose
+//-------------------------------------------------------------------------
+
+int
+RecPipeClose(RecHandle h_pipe)
+{
+  return (close(h_pipe) == 0) ? REC_ERR_OKAY : REC_ERR_FAIL;
+}
diff --git a/lib/records/RecHttp.cc b/lib/records/RecHttp.cc
new file mode 100644
index 00000000..753a3c1e
--- /dev/null
+++ b/lib/records/RecHttp.cc
@@ -0,0 +1,661 @@
+/** @file
+
+  HTTP configuration support.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+# include <records/I_RecCore.h>
+# include <records/I_RecHttp.h>
+# include <ts/ink_defs.h>
+# include <ts/Tokenizer.h>
+# include <strings.h>
+
+SessionProtocolNameRegistry globalSessionProtocolNameRegistry;
+
+/* Protocol session well-known protocol names.
+   These are also used for NPN setup.
+*/
+
+const char * const TS_NPN_PROTOCOL_HTTP_0_9 = "http/0.9";
+const char * const TS_NPN_PROTOCOL_HTTP_1_0 = "http/1.0";
+const char * const TS_NPN_PROTOCOL_HTTP_1_1 = "http/1.1";
+const char * const TS_NPN_PROTOCOL_HTTP_2   = "http/2";
+const char * const TS_NPN_PROTOCOL_SPDY_1   = "spdy/1";   // obsolete
+const char * const TS_NPN_PROTOCOL_SPDY_2   = "spdy/2";
+const char * const TS_NPN_PROTOCOL_SPDY_3   = "spdy/3";
+const char * const TS_NPN_PROTOCOL_SPDY_3_1 = "spdy/3.1";
+
+const char * const TS_NPN_PROTOCOL_GROUP_HTTP = "http";
+const char * const TS_NPN_PROTOCOL_GROUP_HTTP2 = "http2";
+const char * const TS_NPN_PROTOCOL_GROUP_SPDY = "spdy";
+
+// Precomputed indices for ease of use.
+int TS_NPN_PROTOCOL_INDEX_HTTP_0_9 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_HTTP_1_0 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_HTTP_1_1 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_HTTP_2 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_SPDY_1 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_SPDY_2 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_SPDY_3 = SessionProtocolNameRegistry::INVALID;
+int TS_NPN_PROTOCOL_INDEX_SPDY_3_1 = SessionProtocolNameRegistry::INVALID;
+
+// Predefined protocol sets for ease of use.
+SessionProtocolSet HTTP_PROTOCOL_SET;
+SessionProtocolSet SPDY_PROTOCOL_SET;
+SessionProtocolSet HTTP2_PROTOCOL_SET;
+SessionProtocolSet DEFAULT_NON_TLS_SESSION_PROTOCOL_SET;
+SessionProtocolSet DEFAULT_TLS_SESSION_PROTOCOL_SET;
+
+void RecHttpLoadIp(char const* value_name, IpAddr& ip4, IpAddr& ip6)
+{
+  char value[1024];
+  ip4.invalidate();
+  ip6.invalidate();
+  if (REC_ERR_OKAY == RecGetRecordString(value_name, value, sizeof(value))) {
+    Tokenizer tokens(", ");
+    int n_addrs = tokens.Initialize(value);
+    for (int i = 0 ; i < n_addrs ; ++i ) {
+      char const* host = tokens[i];
+      IpEndpoint tmp4, tmp6;
+      // For backwards compatibility we need to support the use of host names
+      // for the address to bind.
+      if (0 == ats_ip_getbestaddrinfo(host, &tmp4, &tmp6)) {
+        if (ats_is_ip4(&tmp4)) {
+          if (!ip4.isValid()) ip4 = tmp4;
+          else Warning("'%s' specifies more than one IPv4 address, ignoring %s.", value_name, host);
+        }
+        if (ats_is_ip6(&tmp6)) {
+          if (!ip6.isValid()) ip6 = tmp6;
+          else Warning("'%s' specifies more than one IPv6 address, ignoring %s.", value_name, host);
+        }
+      } else {
+        Warning("'%s' has an value '%s' that is not recognized as an IP address, ignored.", value_name, host);
+      }
+    }
+  }
+}
+
+
+char const* const HttpProxyPort::DEFAULT_VALUE = "8080";
+
+char const* const HttpProxyPort::PORTS_CONFIG_NAME = "proxy.config.http.server_ports";
+
+// "_PREFIX" means the option contains additional data.
+// Each has a corresponding _LEN value that is the length of the option text.
+// Options without _PREFIX are just flags with no additional data.
+
+char const* const HttpProxyPort::OPT_FD_PREFIX = "fd";
+char const* const HttpProxyPort::OPT_OUTBOUND_IP_PREFIX = "ip-out";
+char const* const HttpProxyPort::OPT_INBOUND_IP_PREFIX = "ip-in";
+char const* const HttpProxyPort::OPT_HOST_RES_PREFIX = "ip-resolve";
+char const* const HttpProxyPort::OPT_PROTO_PREFIX = "proto";
+
+char const* const HttpProxyPort::OPT_IPV6 = "ipv6";
+char const* const HttpProxyPort::OPT_IPV4 = "ipv4";
+char const* const HttpProxyPort::OPT_TRANSPARENT_INBOUND = "tr-in";
+char const* const HttpProxyPort::OPT_TRANSPARENT_OUTBOUND = "tr-out";
+char const* const HttpProxyPort::OPT_TRANSPARENT_FULL = "tr-full";
+char const* const HttpProxyPort::OPT_TRANSPARENT_PASSTHROUGH = "tr-pass";
+char const* const HttpProxyPort::OPT_SSL = "ssl";
+char const* const HttpProxyPort::OPT_PLUGIN = "plugin";
+char const* const HttpProxyPort::OPT_BLIND_TUNNEL = "blind";
+char const* const HttpProxyPort::OPT_COMPRESSED = "compressed";
+
+// File local constants.
+namespace {
+  // Length values for _PREFIX options.
+  size_t const OPT_FD_PREFIX_LEN = strlen(HttpProxyPort::OPT_FD_PREFIX);
+  size_t const OPT_OUTBOUND_IP_PREFIX_LEN = strlen(HttpProxyPort::OPT_OUTBOUND_IP_PREFIX);
+  size_t const OPT_INBOUND_IP_PREFIX_LEN = strlen(HttpProxyPort::OPT_INBOUND_IP_PREFIX);
+  size_t const OPT_HOST_RES_PREFIX_LEN = strlen(HttpProxyPort::OPT_HOST_RES_PREFIX);
+  size_t const OPT_PROTO_PREFIX_LEN = strlen(HttpProxyPort::OPT_PROTO_PREFIX);
+}
+
+namespace {
+// Solaris work around. On that OS the compiler will not let me use an
+// instantiated instance of Vec<self> inside the class, even if
+// static. So we have to declare it elsewhere and then import via
+// reference. Might be a problem with Vec<> creating a fixed array
+// rather than allocating on first use (compared to std::vector<>).
+  HttpProxyPort::Group GLOBAL_DATA;
+}
+HttpProxyPort::Group& HttpProxyPort::m_global = GLOBAL_DATA;
+
+HttpProxyPort::HttpProxyPort()
+  : m_fd(ts::NO_FD)
+  , m_type(TRANSPORT_DEFAULT)
+  , m_port(0)
+  , m_family(AF_INET)
+  , m_inbound_transparent_p(false)
+  , m_outbound_transparent_p(false)
+  , m_transparent_passthrough(false)
+{
+  memcpy(m_host_res_preference, host_res_default_preference_order, sizeof(m_host_res_preference));
+}
+
+bool HttpProxyPort::hasSSL(Group const& ports) {
+  bool zret = false;
+  for ( int i = 0 , n = ports.length() ; i < n && !zret ; ++i ) {
+    if (ports[i].isSSL()) zret = true;
+  }
+  return zret;
+}
+
+HttpProxyPort* HttpProxyPort::findHttp(Group const& ports, uint16_t family) {
+  bool check_family_p = ats_is_ip(family);
+  self* zret = 0;
+  for ( int i = 0 , n = ports.length() ; i < n && !zret ; ++i ) {
+    HttpProxyPort& p = ports[i];
+    if (p.m_port && // has a valid port
+	TRANSPORT_DEFAULT == p.m_type && // is normal HTTP
+	( !check_family_p || p.m_family == family) // right address family
+	)
+      zret = &p;;
+  }
+  return zret;
+}
+
+char const*
+HttpProxyPort::checkPrefix(char const* src, char const* prefix, size_t prefix_len) {
+  char const* zret = 0;
+  if (0 == strncasecmp(prefix, src, prefix_len)) {
+    src += prefix_len;
+    if ('-' == *src || '=' == *src) ++src; // permit optional '-' or '='
+    zret = src;
+  }
+  return zret;
+}
+
+bool
+HttpProxyPort::loadConfig(Vec<self>& entries) {
+  char* text;
+  bool found_p;
+
+  text = REC_readString(PORTS_CONFIG_NAME, &found_p);
+  if (found_p) self::loadValue(entries, text);
+  ats_free(text);
+
+  return 0 < entries.length();
+}
+
+bool
+HttpProxyPort::loadDefaultIfEmpty(Group& ports) {
+  if (0 == ports.length())
+    self::loadValue(ports, DEFAULT_VALUE);
+
+  return 0 < ports.length();
+}
+
+bool
+HttpProxyPort::loadValue(Vec<self>& ports, char const* text) {
+  unsigned old_port_length = ports.length(); // remember this.
+  if (text && *text) {
+    Tokenizer tokens(", ");
+    int n_ports = tokens.Initialize(text);
+    if (n_ports > 0) {
+      for ( int p = 0 ; p < n_ports ; ++p ) {
+        char const* elt = tokens[p];
+        HttpProxyPort entry;
+        if (entry.processOptions(elt)) ports.push_back(entry);
+        else Warning("No valid definition was found in proxy port configuration element '%s'", elt);
+      }
+    }
+  }
+  return ports.length() > old_port_length; // we added at least one port.
+}
+
+bool
+HttpProxyPort::processOptions(char const* opts) {
+  bool zret = false; // found a port?
+  bool af_set_p = false; // AF explicitly specified?
+  bool host_res_set_p = false; // Host resolution order set explicitly?
+  bool sp_set_p = false; // Session protocol set explicitly?
+  bool bracket_p = false; // found an open bracket in the input?
+  char const* value; // Temp holder for value of a prefix option.
+  IpAddr ip; // temp for loading IP addresses.
+  Vec<char*> values; // Pointers to single option values.
+
+  // Make a copy we can modify safely.
+  size_t opts_len = strlen(opts) + 1;
+  char* text = static_cast<char*>(alloca(opts_len));
+  memcpy(text, opts, opts_len);
+
+  // Split the copy in to tokens.
+  char* token = 0;
+  for (char* spot = text ; *spot ; ++spot ) {
+    if (bracket_p) {
+      if (']' == *spot) bracket_p = false;
+    } else if (':' == *spot) {
+      *spot = 0;
+      token = 0;
+    } else {
+      if (! token) {
+        token = spot;
+        values.push_back(token);
+      }
+      if ('[' == *spot) bracket_p = true;
+    }
+  }
+  if (bracket_p) {
+    Warning("Invalid port descriptor '%s' - left bracket without closing right bracket", opts);
+    return zret;
+  }
+
+  for ( int i = 0, n_items = values.length() ; i < n_items ; ++i) {
+    char const* item = values[i];
+    if (isdigit(item[0])) { // leading digit -> port value
+      char* ptr;
+      int port = strtoul(item, &ptr, 10);
+      if (ptr == item) {
+        // really, this shouldn't happen, since we checked for a leading digit.
+        Warning("Mangled port value '%s' in port configuration '%s'", item, opts);
+      } else if (port <= 0 || 65536 <= port) {
+        Warning("Port value '%s' out of range (1..65535) in port configuration '%s'", item, opts);
+      } else {
+        m_port = port;
+        zret = true;
+      }
+    } else if (0 != (value = this->checkPrefix(item, OPT_FD_PREFIX, OPT_FD_PREFIX_LEN))) {
+      char* ptr; // tmp for syntax check.
+      int fd = strtoul(value, &ptr, 10);
+      if (ptr == value) {
+        Warning("Mangled file descriptor value '%s' in port descriptor '%s'", item, opts);
+      } else {
+        m_fd = fd;
+        zret = true;
+      }
+    } else if (0 != (value = this->checkPrefix(item, OPT_INBOUND_IP_PREFIX, OPT_INBOUND_IP_PREFIX_LEN))) {
+      if (0 == ip.load(value))
+        m_inbound_ip = ip;
+      else
+        Warning("Invalid IP address value '%s' in port descriptor '%s'",
+          item, opts
+        );
+    } else if (0 != (value = this->checkPrefix(item, OPT_OUTBOUND_IP_PREFIX, OPT_OUTBOUND_IP_PREFIX_LEN))) {
+      if (0 == ip.load(value))
+        this->outboundIp(ip.family()) = ip;
+      else
+        Warning("Invalid IP address value '%s' in port descriptor '%s'", item, opts);
+    } else if (0 == strcasecmp(OPT_COMPRESSED, item)) {
+      m_type = TRANSPORT_COMPRESSED;
+    } else if (0 == strcasecmp(OPT_BLIND_TUNNEL, item)) {
+      m_type = TRANSPORT_BLIND_TUNNEL;
+    } else if (0 == strcasecmp(OPT_IPV6, item)) {
+      m_family = AF_INET6;
+      af_set_p = true;
+    } else if (0 == strcasecmp(OPT_IPV4, item)) {
+      m_family = AF_INET;
+      af_set_p = true;
+    } else if (0 == strcasecmp(OPT_SSL, item)) {
+      m_type = TRANSPORT_SSL;
+    } else if (0 == strcasecmp(OPT_PLUGIN, item)) {
+      m_type = TRANSPORT_PLUGIN;
+    } else if (0 == strcasecmp(OPT_TRANSPARENT_INBOUND, item)) {
+# if TS_USE_TPROXY
+      m_inbound_transparent_p = true;
+# else
+      Warning("Transparency requested [%s] in port descriptor '%s' but TPROXY was not configured.", item, opts);
+# endif
+    } else if (0 == strcasecmp(OPT_TRANSPARENT_OUTBOUND, item)) {
+# if TS_USE_TPROXY
+      m_outbound_transparent_p = true;
+# else
+      Warning("Transparency requested [%s] in port descriptor '%s' but TPROXY was not configured.", item, opts);
+# endif
+    } else if (0 == strcasecmp(OPT_TRANSPARENT_FULL, item)) {
+# if TS_USE_TPROXY
+      m_inbound_transparent_p = true;
+      m_outbound_transparent_p = true;
+# else
+      Warning("Transparency requested [%s] in port descriptor '%s' but TPROXY was not configured.", item, opts);
+# endif
+    } else if (0 == strcasecmp(OPT_TRANSPARENT_PASSTHROUGH, item)) {
+# if TS_USE_TPROXY
+      m_transparent_passthrough = true;
+# else
+      Warning("Transparent pass-through requested [%s] in port descriptor '%s' but TPROXY was not configured.", item, opts);
+# endif
+    } else if (0 != (value = this->checkPrefix(item, OPT_HOST_RES_PREFIX, OPT_HOST_RES_PREFIX_LEN))) {
+      this->processFamilyPreference(value);
+      host_res_set_p = true;
+    } else if (0 != (value = this->checkPrefix(item, OPT_PROTO_PREFIX, OPT_PROTO_PREFIX_LEN))) {
+      this->processSessionProtocolPreference(value);
+      sp_set_p = true;
+    } else {
+      Warning("Invalid option '%s' in proxy port configuration '%s'", item, opts);
+    }
+  }
+
+  bool in_ip_set_p = m_inbound_ip.isValid();
+
+  if (af_set_p) {
+    if (in_ip_set_p && m_family != m_inbound_ip.family()) {
+      Warning("Invalid port descriptor '%s' - the inbound adddress family [%s] is not the same type as the explicit family value [%s]",
+        opts, ats_ip_family_name(m_inbound_ip.family()), ats_ip_family_name(m_family));
+      zret = false;
+    }
+  } else if (in_ip_set_p) {
+    m_family = m_inbound_ip.family(); // set according to address.
+  }
+
+  // If the port is outbound transparent only CLIENT host resolution is possible.
+  if (m_outbound_transparent_p) {
+    if (host_res_set_p &&
+        (m_host_res_preference[0] != HOST_RES_PREFER_CLIENT ||
+         m_host_res_preference[1] != HOST_RES_PREFER_NONE
+    )) {
+      Warning("Outbound transparent port '%s' requires the IP address resolution ordering '%s,%s'. "
+              "This is set automatically and does not need to be set explicitly."
+              , opts
+              , HOST_RES_PREFERENCE_STRING[HOST_RES_PREFER_CLIENT]
+              , HOST_RES_PREFERENCE_STRING[HOST_RES_PREFER_NONE]
+        );
+    }
+    m_host_res_preference[0] = HOST_RES_PREFER_CLIENT;
+    m_host_res_preference[1] = HOST_RES_PREFER_NONE;
+  }
+
+  // Transparent pass-through requires tr-in
+  if (m_transparent_passthrough && !m_inbound_transparent_p) {
+    Warning("Port descriptor '%s' has transparent pass-through enabled without inbound transparency, this will be ignored.", opts);
+    m_transparent_passthrough = false;
+  }
+
+  // Set the default session protocols.
+  if (!sp_set_p)
+    m_session_protocol_preference = this->isSSL()
+      ? DEFAULT_TLS_SESSION_PROTOCOL_SET
+      : DEFAULT_NON_TLS_SESSION_PROTOCOL_SET
+      ;
+
+  return zret;
+}
+
+void
+HttpProxyPort::processFamilyPreference(char const* value) {
+  parse_host_res_preference(value, m_host_res_preference);
+}
+
+void
+HttpProxyPort::processSessionProtocolPreference(char const* value) {
+  m_session_protocol_preference.markAllOut();
+  globalSessionProtocolNameRegistry.markIn(value, m_session_protocol_preference);
+}
+
+void
+SessionProtocolNameRegistry::markIn(char const* value, SessionProtocolSet& sp_set) {
+  int n; // # of tokens
+  Tokenizer tokens(" ;|,:");
+ 
+  n = tokens.Initialize(value);
+
+  for ( int i = 0 ; i < n ; ++i ) {
+    char const* elt = tokens[i];
+    
+    /// Check special cases
+    if (0 == strcasecmp(elt, TS_NPN_PROTOCOL_GROUP_HTTP)) {
+      sp_set.markIn(HTTP_PROTOCOL_SET);
+    } else if (0 == strcasecmp(elt, TS_NPN_PROTOCOL_GROUP_SPDY)) {
+      sp_set.markIn(SPDY_PROTOCOL_SET);
+    } else if (0 == strcasecmp(elt, TS_NPN_PROTOCOL_GROUP_HTTP2)) {
+      sp_set.markIn(HTTP2_PROTOCOL_SET);
+    } else { // user defined - register and mark.
+      int idx = globalSessionProtocolNameRegistry.toIndex(elt);
+      sp_set.markIn(idx);
+    }
+  }
+}
+
+int
+HttpProxyPort::print(char* out, size_t n) {
+  size_t zret = 0; // # of chars printed so far.
+  ip_text_buffer ipb;
+  bool need_colon_p = false;
+
+  if (m_inbound_ip.isValid()) {
+    zret += snprintf(out+zret, n-zret, "%s=[%s]",
+      OPT_INBOUND_IP_PREFIX,
+      m_inbound_ip.toString(ipb, sizeof(ipb))
+    );
+    need_colon_p = true;
+  }
+  if (zret >= n) return n;
+
+  if (m_outbound_ip4.isValid()) {
+    if (need_colon_p) out[zret++] = ':';
+    zret += snprintf(out+zret, n-zret, "%s=[%s]",
+      OPT_OUTBOUND_IP_PREFIX,
+      m_outbound_ip4.toString(ipb, sizeof(ipb))
+    );
+    need_colon_p = true;
+  }
+  if (zret >= n) return n;
+
+  if (m_outbound_ip6.isValid()) {
+    if (need_colon_p) out[zret++] = ':';
+    zret += snprintf(out+zret, n-zret, "%s=[%s]",
+      OPT_OUTBOUND_IP_PREFIX,
+      m_outbound_ip6.toString(ipb, sizeof(ipb))
+    );
+    need_colon_p = true;
+  }
+  if (zret >= n) return n;
+
+  if (0 != m_port) {
+    if (need_colon_p) out[zret++] = ':';
+    zret += snprintf(out+zret, n-zret, "%d", m_port);
+    need_colon_p = true;
+  }
+  if (zret >= n) return n;
+
+  if (ts::NO_FD != m_fd) {
+    if (need_colon_p) out[zret++] = ':';
+    zret += snprintf(out+zret, n-zret, "fd=%d", m_fd);
+    need_colon_p = true;
+  }
+  if (zret >= n) return n;
+
+  // After this point, all of these options require other options which we've already
+  // generated so all of them need a leading colon and we can stop checking for that.
+
+  if (AF_INET6 == m_family)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_IPV6);
+  if (zret >= n) return n;
+
+  if (TRANSPORT_BLIND_TUNNEL == m_type)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_BLIND_TUNNEL);
+  else if (TRANSPORT_SSL == m_type)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_SSL);
+  else if (TRANSPORT_PLUGIN == m_type)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_PLUGIN);
+  else if (TRANSPORT_COMPRESSED == m_type)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_COMPRESSED);
+  if (zret >= n) return n;
+
+  if (m_outbound_transparent_p && m_inbound_transparent_p)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_TRANSPARENT_FULL);
+  else if (m_inbound_transparent_p)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_TRANSPARENT_INBOUND);
+  else if (m_outbound_transparent_p)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_TRANSPARENT_OUTBOUND);
+
+  if (m_transparent_passthrough)
+    zret += snprintf(out+zret, n-zret, ":%s", OPT_TRANSPARENT_PASSTHROUGH);
+
+  /* Don't print the IP resolution preferences if the port is outbound
+   * transparent (which means the preference order is forced) or if
+   * the order is the same as the default.
+   */
+  if (!m_outbound_transparent_p &&
+      0 != memcmp(m_host_res_preference, host_res_default_preference_order, sizeof(m_host_res_preference))) {
+    zret += snprintf(out+zret, n-zret, ":%s=", OPT_HOST_RES_PREFIX);
+    zret += ts_host_res_order_to_string(m_host_res_preference, out+zret, n-zret);
+  }
+
+  // session protocol options - look for condensed options first
+  // first two cases are the defaults so if those match, print nothing.
+  SessionProtocolSet sp_set = m_session_protocol_preference; // need to modify so copy.
+  need_colon_p = true; // for listing case, turned off if we do a special case.
+  if (sp_set == DEFAULT_NON_TLS_SESSION_PROTOCOL_SET && !this->isSSL()) {
+    sp_set.markOut(DEFAULT_NON_TLS_SESSION_PROTOCOL_SET);
+  } else if (sp_set == DEFAULT_TLS_SESSION_PROTOCOL_SET && this->isSSL()) {
+    sp_set.markOut(DEFAULT_TLS_SESSION_PROTOCOL_SET);
+  }
+
+  // pull out groups.
+  if (sp_set.contains(HTTP_PROTOCOL_SET)) {
+    zret += snprintf(out+zret, n-zret, ":%s=%s", OPT_PROTO_PREFIX,TS_NPN_PROTOCOL_GROUP_HTTP);
+    sp_set.markOut(HTTP_PROTOCOL_SET);
+    need_colon_p = false;
+  }
+  if (sp_set.contains(SPDY_PROTOCOL_SET)) {
+    if (need_colon_p) 
+      zret += snprintf(out+zret, n-zret, ":%s=", OPT_PROTO_PREFIX);
+    else
+      out[zret++] = ';';
+    zret += snprintf(out+zret, n-zret, TS_NPN_PROTOCOL_GROUP_SPDY);
+    sp_set.markOut(SPDY_PROTOCOL_SET);
+    need_colon_p = false;
+  }
+  if (sp_set.contains(HTTP2_PROTOCOL_SET)) {
+    if (need_colon_p)
+      zret += snprintf(out+zret, n-zret, ":%s=", OPT_PROTO_PREFIX);
+    else
+      out[zret++] = ';';
+    zret += snprintf(out+zret, n-zret, "%s", TS_NPN_PROTOCOL_GROUP_HTTP2);
+    sp_set.markOut(HTTP2_PROTOCOL_SET);
+    need_colon_p = false;
+  }
+  // now enumerate what's left.
+  if (!sp_set.isEmpty()) {
+    if (need_colon_p)
+      zret += snprintf(out+zret, n-zret, ":%s=", OPT_PROTO_PREFIX);
+    bool sep_p = !need_colon_p;
+    for ( int k = 0 ; k < SessionProtocolSet::MAX ; ++k ) {
+      if (sp_set.contains(k)) {
+        zret += snprintf(out+zret, n-zret, "%s%s", sep_p ? ";" : "", globalSessionProtocolNameRegistry.nameFor(k));
+        sep_p = true;
+      }
+    }
+  }
+
+  return min(zret,n);
+}
+
+void
+ts_host_res_global_init()
+{
+  // Global configuration values.
+  memcpy(host_res_default_preference_order,
+         HOST_RES_DEFAULT_PREFERENCE_ORDER,
+         sizeof(host_res_default_preference_order));
+
+  char* ip_resolve = REC_ConfigReadString("proxy.config.hostdb.ip_resolve");
+  if (ip_resolve) {
+    parse_host_res_preference(ip_resolve, host_res_default_preference_order);
+  }
+  ats_free(ip_resolve);
+}
+
+// Whatever executable uses librecords must call this.
+void
+ts_session_protocol_well_known_name_indices_init()
+{
+  // register all the well known protocols and get the indices set.
+  TS_NPN_PROTOCOL_INDEX_HTTP_0_9 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_HTTP_0_9);
+  TS_NPN_PROTOCOL_INDEX_HTTP_1_0 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_HTTP_1_0);
+  TS_NPN_PROTOCOL_INDEX_HTTP_1_1 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_HTTP_1_1);
+  TS_NPN_PROTOCOL_INDEX_HTTP_2 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_HTTP_2);
+  TS_NPN_PROTOCOL_INDEX_SPDY_1 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_SPDY_1);
+  TS_NPN_PROTOCOL_INDEX_SPDY_2 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_SPDY_2);
+  TS_NPN_PROTOCOL_INDEX_SPDY_3 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_SPDY_3);
+  TS_NPN_PROTOCOL_INDEX_SPDY_3_1 = globalSessionProtocolNameRegistry.toIndexConst(TS_NPN_PROTOCOL_SPDY_3_1);
+
+  // Now do the predefined protocol sets.
+  HTTP_PROTOCOL_SET.markIn(TS_NPN_PROTOCOL_INDEX_HTTP_0_9);
+  HTTP_PROTOCOL_SET.markIn(TS_NPN_PROTOCOL_INDEX_HTTP_1_0);
+  HTTP_PROTOCOL_SET.markIn(TS_NPN_PROTOCOL_INDEX_HTTP_1_1);
+  HTTP2_PROTOCOL_SET.markIn(TS_NPN_PROTOCOL_INDEX_HTTP_2);
+  SPDY_PROTOCOL_SET.markIn(TS_NPN_PROTOCOL_INDEX_SPDY_3);
+  SPDY_PROTOCOL_SET.markIn(TS_NPN_PROTOCOL_INDEX_SPDY_3_1);
+
+  DEFAULT_TLS_SESSION_PROTOCOL_SET.markAllIn();
+  DEFAULT_NON_TLS_SESSION_PROTOCOL_SET = HTTP_PROTOCOL_SET;
+}
+
+SessionProtocolNameRegistry::SessionProtocolNameRegistry()
+  : m_n(0)
+{
+  memset(m_names, 0, sizeof(m_names));
+  memset(&m_flags, 0, sizeof(m_flags));
+}
+
+SessionProtocolNameRegistry::~SessionProtocolNameRegistry() {
+  for ( size_t i = 0 ; i < m_n ; ++i ) {
+    if (m_flags[i] & F_ALLOCATED)
+      ats_free(const_cast<char*>(m_names[i])); // blech - ats_free won't take a char const*
+  }
+}
+
+int
+SessionProtocolNameRegistry::toIndex(char const* name) {
+  int zret = this->indexFor(name);
+  if (INVALID == zret) {
+    if (m_n < static_cast<size_t>(MAX)) {
+      m_names[m_n] = ats_strdup(name);
+      m_flags[m_n] = F_ALLOCATED;
+      zret = m_n++;
+    } else {
+      ink_release_assert(!"Session protocol name registry overflow");
+    }
+  }
+  return zret;
+}
+
+int
+SessionProtocolNameRegistry::toIndexConst(char const* name) {
+  int zret = this->indexFor(name);
+  if (INVALID == zret) {
+    if ( m_n < static_cast<size_t>(MAX)) {
+      m_names[m_n] = name;
+      zret = m_n++;
+    } else {
+      ink_release_assert(!"Session protocol name registry overflow");
+    }
+  }
+  return zret;
+}
+
+int
+SessionProtocolNameRegistry::indexFor(char const* name) const {
+  for ( size_t i = 0 ; i < m_n ; ++i ) {
+    if (0 == strcasecmp(name, m_names[i]))
+      return i;
+  }
+  return INVALID;
+}
+
+char const*
+SessionProtocolNameRegistry::nameFor(int idx) const {
+  return 0 <= idx && idx < static_cast<int>(m_n)
+    ? m_names[idx]
+    : 0
+    ;
+}
diff --git a/lib/records/RecLocal.cc b/lib/records/RecLocal.cc
new file mode 100644
index 00000000..25ed9565
--- /dev/null
+++ b/lib/records/RecLocal.cc
@@ -0,0 +1,185 @@
+/** @file
+
+  Record local definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "Rollback.h"
+#include "ParseRules.h"
+#include "P_RecCore.h"
+#include "P_RecLocal.h"
+#include "P_RecMessage.h"
+#include "P_RecUtils.h"
+#include "P_RecFile.h"
+
+static bool g_initialized = false;
+static bool g_message_initialized = false;
+
+//-------------------------------------------------------------------------
+// i_am_the_record_owner, only used for libreclocal.a
+//-------------------------------------------------------------------------
+bool
+i_am_the_record_owner(RecT rec_type)
+{
+  switch (rec_type) {
+  case RECT_CONFIG:
+  case RECT_NODE:
+  case RECT_CLUSTER:
+  case RECT_LOCAL:
+    return true;
+  case RECT_PROCESS:
+  case RECT_PLUGIN:
+    return false;
+  default:
+    ink_assert(!"Unexpected RecT type");
+    return false;
+  }
+}
+
+//-------------------------------------------------------------------------
+//
+// REC_BUILD_MGMT IMPLEMENTATION
+//
+//-------------------------------------------------------------------------
+#include "Main.h"
+
+
+//-------------------------------------------------------------------------
+// sync_thr
+//-------------------------------------------------------------------------
+static void *
+sync_thr(void *data)
+{
+  textBuffer *tb = new textBuffer(65536);
+  Rollback *rb;
+  bool inc_version;
+  bool written;
+
+  while (1) {
+    send_push_message();
+    RecSyncStatsFile();
+    if (RecSyncConfigToTB(tb, &inc_version) == REC_ERR_OKAY) {
+      written = false;
+      if (configFiles->getRollbackObj(REC_CONFIG_FILE, &rb)) {
+        if (inc_version) {
+          RecDebug(DL_Note, "Rollback: '%s'", REC_CONFIG_FILE);
+          version_t ver = rb->getCurrentVersion();
+          if ((rb->updateVersion(tb, ver, -1, false)) != OK_ROLLBACK) {
+            RecDebug(DL_Note, "Rollback failed: '%s'", REC_CONFIG_FILE);
+          }
+          written = true;
+        }
+      }
+      else {
+        rb = NULL;
+      }
+      if (!written) {
+        RecWriteConfigFile(tb);
+        if (rb != NULL) {
+          rb->setLastModifiedTime();
+        }
+      }
+    }
+    usleep(REC_REMOTE_SYNC_INTERVAL_MS * 1000);
+  }
+  return NULL;
+}
+
+
+//-------------------------------------------------------------------------
+// config_update_thr
+//-------------------------------------------------------------------------
+static void *
+config_update_thr(void *data)
+{
+  while (true) {
+    RecExecConfigUpdateCbs(REC_LOCAL_UPDATE_REQUIRED);
+    usleep(REC_CONFIG_UPDATE_INTERVAL_MS * 1000);
+  }
+  return NULL;
+}
+
+
+//-------------------------------------------------------------------------
+// RecLocalInit
+//-------------------------------------------------------------------------
+int
+RecLocalInit(Diags * _diags)
+{
+  if (g_initialized) {
+    return REC_ERR_OKAY;
+  }
+
+  g_mode_type = RECM_SERVER;
+
+  if (RecCoreInit(RECM_SERVER, _diags) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+
+  /* -- defer RecMessageInit() until LocalManager is initialized
+     if (RecMessageInit(RECM_SERVER) == REC_ERR_FAIL) {
+     return REC_ERR_FAIL;
+     }
+
+     if (RecMessageRegisterRecvCb(recv_message_cb, NULL)) {
+     return REC_ERR_FAIL;
+     }
+   */
+  g_initialized = true;
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecLocalInitMessage
+//-------------------------------------------------------------------------
+int
+RecLocalInitMessage()
+{
+  if (g_message_initialized) {
+    return REC_ERR_OKAY;
+  }
+
+  if (RecMessageInit() == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+
+  if (RecMessageRegisterRecvCb(recv_message_cb, NULL)) {
+    return REC_ERR_FAIL;
+  }
+
+  g_message_initialized = true;
+
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecLocalStart
+//-------------------------------------------------------------------------
+int
+RecLocalStart()
+{
+  ink_thread_create(sync_thr, NULL);
+  ink_thread_create(config_update_thr, NULL);
+
+  return REC_ERR_OKAY;
+}
diff --git a/lib/records/RecMessage.cc b/lib/records/RecMessage.cc
new file mode 100644
index 00000000..490eeb12
--- /dev/null
+++ b/lib/records/RecMessage.cc
@@ -0,0 +1,386 @@
+/** @file
+
+  Record message definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "P_RecCore.h"
+#include "P_RecFile.h"
+#include "P_RecMessage.h"
+#include "P_RecUtils.h"
+#include "P_RecCore.h"
+#include "I_Layout.h"
+
+static bool g_message_initialized = false;
+static RecMessageRecvCb g_recv_cb = NULL;
+static void *g_recv_cookie = NULL;
+
+//-------------------------------------------------------------------------
+//
+// REC_BUILD_MGMT IMPLEMENTATION
+//
+//-------------------------------------------------------------------------
+#if defined(LOCAL_MANAGER)
+#include "LocalManager.h"
+#elif defined(PROCESS_MANAGER)
+#include "ProcessManager.h"
+#else
+#error "Required #define not specificed; expected LOCAL_MANAGER or PROCESS_MANAGER"
+#endif
+
+//-------------------------------------------------------------------------
+// RecMessageInit
+//-------------------------------------------------------------------------
+
+int
+RecMessageInit()
+{
+  if (g_message_initialized) {
+    return REC_ERR_OKAY;
+  }
+
+  /*
+   * g_mode_type should be initialized by
+   * RecLocalInit() or RecProcessInit() earlier.
+   */
+  ink_assert(g_mode_type != RECM_NULL);
+
+#if defined (LOCAL_MANAGER)
+  lmgmt->registerMgmtCallback(MGMT_SIGNAL_LIBRECORDS, RecMessageRecvThis, NULL);
+#elif defined(PROCESS_MANAGER)
+  pmgmt->registerMgmtCallback(MGMT_EVENT_LIBRECORDS, RecMessageRecvThis, NULL);
+#endif
+
+  g_message_initialized = true;
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageSend
+//-------------------------------------------------------------------------
+
+int
+RecMessageSend(RecMessage * msg)
+{
+  int msg_size;
+
+  if (!g_message_initialized)
+    return REC_ERR_OKAY;
+
+  // Make a copy of the record, but truncate it to the size actually used
+  if (g_mode_type == RECM_CLIENT || g_mode_type == RECM_SERVER) {
+    msg->o_end = msg->o_write;
+    msg_size = sizeof(RecMessageHdr) + (msg->o_write - msg->o_start);
+#if defined (LOCAL_MANAGER)
+    lmgmt->signalEvent(MGMT_EVENT_LIBRECORDS, (char *) msg, msg_size);
+#elif defined(PROCESS_MANAGER)
+    pmgmt->signalManager(MGMT_SIGNAL_LIBRECORDS, (char *) msg, msg_size);
+#endif
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecMessageAlloc
+//-------------------------------------------------------------------------
+RecMessage *
+RecMessageAlloc(RecMessageT msg_type, int initial_size)
+{
+  RecMessage *msg;
+
+  msg = (RecMessage *)ats_malloc(sizeof(RecMessageHdr) + initial_size);
+  memset(msg, 0, sizeof(RecMessageHdr) + initial_size);
+  msg->msg_type = msg_type;
+  msg->o_start = sizeof(RecMessageHdr);
+  msg->o_write = sizeof(RecMessageHdr);
+  msg->o_end = sizeof(RecMessageHdr) + initial_size;
+  msg->entries = 0;
+
+  return msg;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageFree
+//-------------------------------------------------------------------------
+
+int
+RecMessageFree(RecMessage * msg)
+{
+  ats_free(msg);
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageMarshal_Realloc
+//-------------------------------------------------------------------------
+RecMessage *
+RecMessageMarshal_Realloc(RecMessage * msg, const RecRecord * record)
+{
+  int msg_ele_size;
+  int rec_name_len = -1;
+  int rec_data_str_len = -1;
+  int rec_data_def_str_len = -1;
+  int rec_cfg_chk_len = -1;
+  RecMessageEleHdr *ele_hdr;
+  RecRecord *r;
+  char *p;
+
+  // find out how much space we need
+  msg_ele_size = sizeof(RecMessageEleHdr) + sizeof(RecRecord);
+  if (record->name) {
+    rec_name_len = strlen(record->name) + 1;
+    msg_ele_size += rec_name_len;
+  }
+  if (record->data_type == RECD_STRING) {
+    if (record->data.rec_string) {
+      rec_data_str_len = strlen(record->data.rec_string) + 1;
+      msg_ele_size += rec_data_str_len;
+    }
+    if (record->data_default.rec_string) {
+      rec_data_def_str_len = strlen(record->data_default.rec_string) + 1;
+      msg_ele_size += rec_data_def_str_len;
+    }
+  }
+  if (REC_TYPE_IS_CONFIG(record->rec_type) && (record->config_meta.check_expr)) {
+    rec_cfg_chk_len = strlen(record->config_meta.check_expr) + 1;
+    msg_ele_size += rec_cfg_chk_len;
+  }
+  // XXX: this is NOT 8 byte alignment
+  // msg_ele_size = 5;
+  // (msg_ele_size + 7) & ~7 == 5 !!!
+  // msg_ele_size = (msg_ele_size + 7) & ~7;       // 8 byte alignmenet
+
+  msg_ele_size = INK_ALIGN_DEFAULT(msg_ele_size);  // 8 byte alignmenet
+  // get some space in our buffer
+  while (msg->o_end - msg->o_write < msg_ele_size) {
+    int realloc_size = (msg->o_end - msg->o_start) * 2;
+    msg = (RecMessage *)ats_realloc(msg, sizeof(RecMessageHdr) + realloc_size);
+    msg->o_end = msg->o_start + realloc_size;
+  }
+  ele_hdr = (RecMessageEleHdr *) ((char *) msg + msg->o_write);
+  // The following memset() is pretty CPU intensive, replacing it with something
+  // like the below would reduce CPU usage a fair amount. /leif.
+  // *((char*)msg + msg->o_write) = 0;
+  memset((char *) msg + msg->o_write, 0, msg->o_end - msg->o_write);
+  msg->o_write += msg_ele_size;
+
+  // store the record
+  ele_hdr->magic = REC_MESSAGE_ELE_MAGIC;
+  ele_hdr->o_next = msg->o_write;
+  p = (char *) ele_hdr + sizeof(RecMessageEleHdr);
+  memcpy(p, record, sizeof(RecRecord));
+  r = (RecRecord *) p;
+  p += sizeof(RecRecord);
+  if (rec_name_len != -1) {
+    ink_assert((msg->o_end - ((uintptr_t) p - (uintptr_t) msg)) >= (uintptr_t) rec_name_len);
+    memcpy(p, record->name, rec_name_len);
+    r->name = (char *) ((uintptr_t) p - (uintptr_t) r);
+    p += rec_name_len;
+  }
+  if (rec_data_str_len != -1) {
+    ink_assert((msg->o_end - ((uintptr_t) p - (uintptr_t) msg)) >= (uintptr_t) rec_data_str_len);
+    memcpy(p, record->data.rec_string, rec_data_str_len);
+    r->data.rec_string = (char *) ((uintptr_t) p - (uintptr_t) r);
+    p += rec_data_str_len;
+  }
+  if (rec_data_def_str_len != -1) {
+    ink_assert((msg->o_end - ((uintptr_t) p - (uintptr_t) msg)) >= (uintptr_t) rec_data_def_str_len);
+    memcpy(p, record->data_default.rec_string, rec_data_def_str_len);
+    r->data_default.rec_string = (char *) ((uintptr_t) p - (uintptr_t) r);
+    p += rec_data_def_str_len;
+  }
+  if (rec_cfg_chk_len != -1) {
+    ink_assert((msg->o_end - ((uintptr_t) p - (uintptr_t) msg)) >= (uintptr_t) rec_cfg_chk_len);
+    memcpy(p, record->config_meta.check_expr, rec_cfg_chk_len);
+    r->config_meta.check_expr = (char *) ((uintptr_t) p - (uintptr_t) r);
+    p += rec_cfg_chk_len;
+  }
+
+  msg->entries += 1;
+
+  return msg;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageUnmarshalFirst
+//-------------------------------------------------------------------------
+
+int
+RecMessageUnmarshalFirst(RecMessage * msg, RecMessageItr * itr, RecRecord ** record)
+{
+  itr->ele_hdr = (RecMessageEleHdr *) ((char *) msg + msg->o_start);
+  itr->next = 1;
+
+  return RecMessageUnmarshalNext(msg, NULL, record);
+}
+
+//-------------------------------------------------------------------------
+// RecMessageUnmarshalNext
+//-------------------------------------------------------------------------
+
+int
+RecMessageUnmarshalNext(RecMessage * msg, RecMessageItr * itr, RecRecord ** record)
+{
+  RecMessageEleHdr *eh;
+  RecRecord *r;
+
+  if (itr == NULL) {
+    if (msg->entries == 0) {
+      return REC_ERR_FAIL;
+    } else {
+      eh = (RecMessageEleHdr *) ((char *) msg + msg->o_start);
+    }
+  } else {
+    if (itr->next >= msg->entries) {
+      return REC_ERR_FAIL;
+    }
+    itr->ele_hdr = (RecMessageEleHdr *) ((char *) (msg) + itr->ele_hdr->o_next);
+    itr->next += 1;
+    eh = itr->ele_hdr;
+  }
+
+  ink_assert(eh->magic == REC_MESSAGE_ELE_MAGIC);
+
+  // If the file is corrupt, ignore the the rest of the file.
+  if (eh->magic != REC_MESSAGE_ELE_MAGIC) {
+    Warning("Persistent statistics file records.stat is corrupted. Ignoring the rest of the file\n");
+    return REC_ERR_FAIL;
+  }
+
+  r = (RecRecord *) ((char *) eh + sizeof(RecMessageEleHdr));
+
+  if (r->name) {
+    r->name = (char *) r + (intptr_t) (r->name);
+  }
+  if (r->data_type == RECD_STRING) {
+    if (r->data.rec_string) {
+      r->data.rec_string = (char *) r + (intptr_t) (r->data.rec_string);
+    }
+    if (r->data_default.rec_string) {
+      r->data_default.rec_string = (char *) r + (intptr_t) (r->data_default.rec_string);
+    }
+  }
+  if (REC_TYPE_IS_CONFIG(r->rec_type) && (r->config_meta.check_expr)) {
+    r->config_meta.check_expr = (char *) r + (intptr_t) (r->config_meta.check_expr);
+  }
+
+  *record = r;
+
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageRegisterRecvCb
+//-------------------------------------------------------------------------
+
+int
+RecMessageRegisterRecvCb(RecMessageRecvCb recv_cb, void *cookie)
+{
+  if (g_recv_cb) {
+    return REC_ERR_FAIL;
+  }
+  g_recv_cookie = cookie;
+  g_recv_cb = recv_cb;
+
+  return REC_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageRecvThis
+//-------------------------------------------------------------------------
+
+void *
+RecMessageRecvThis(void *cookie, char *data_raw, int data_len)
+{
+  RecMessage *msg = (RecMessage *) data_raw;
+  g_recv_cb(msg, msg->msg_type, g_recv_cookie);
+  return NULL;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageReadFromDisk
+//-------------------------------------------------------------------------
+
+RecMessage *
+RecMessageReadFromDisk(const char *fpath)
+{
+  RecMessageHdr msg_hdr;
+  RecMessage *msg = NULL;
+  RecHandle h_file;
+  int bytes_read;
+
+  if ((h_file = RecFileOpenR(fpath)) == REC_HANDLE_INVALID) {
+    goto Lerror;
+  }
+  if (RecFileRead(h_file, (char *) (&msg_hdr), sizeof(RecMessageHdr), &bytes_read) == REC_ERR_FAIL) {
+    goto Lerror;
+  }
+  msg = (RecMessage *)ats_malloc((msg_hdr.o_end - msg_hdr.o_start) + sizeof(RecMessageHdr));
+  memcpy(msg, &msg_hdr, sizeof(RecMessageHdr));
+  if (RecFileRead(h_file, (char *) (msg) + msg_hdr.o_start,
+                  msg_hdr.o_end - msg_hdr.o_start, &bytes_read) == REC_ERR_FAIL) {
+    goto Lerror;
+  }
+
+  goto Ldone;
+
+Lerror:
+  ats_free(msg);
+  msg = NULL;
+
+Ldone:
+  if (h_file != REC_HANDLE_INVALID) {
+    RecFileClose(h_file);
+  }
+
+  return msg;
+}
+
+//-------------------------------------------------------------------------
+// RecMessageWriteToDisk
+//-------------------------------------------------------------------------
+
+int
+RecMessageWriteToDisk(RecMessage *msg, const char *fpath)
+{
+  int msg_size;
+  RecHandle h_file;
+  int bytes_written;
+
+  // Cap the message (e.g. when we read it, o_end should reflect the
+  // size of the new buffer that we write to disk, not the size of the
+  // buffer in memory).
+  msg->o_end = msg->o_write;
+
+  msg_size = sizeof(RecMessageHdr) + (msg->o_write - msg->o_start);
+  if ((h_file = RecFileOpenW(fpath)) != REC_HANDLE_INVALID) {
+    if (RecFileWrite(h_file, (char *) msg, msg_size, &bytes_written) == REC_ERR_FAIL) {
+      RecFileClose(h_file);
+      return REC_ERR_FAIL;
+    }
+    RecFileClose(h_file);
+  }
+
+  return REC_ERR_OKAY;
+}
diff --git a/lib/records/RecMutex.cc b/lib/records/RecMutex.cc
new file mode 100644
index 00000000..797e285e
--- /dev/null
+++ b/lib/records/RecMutex.cc
@@ -0,0 +1,70 @@
+/** @file
+
+  RecMutex definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "I_RecMutex.h"
+
+int
+rec_mutex_init(RecMutex * m, const char *name)
+{
+  m->nthread_holding = 0;
+  m->thread_holding = 0;
+  return ink_mutex_init(&(m->the_mutex), name);
+}
+
+int
+rec_mutex_destroy(RecMutex * m)
+{
+  ink_assert(m->nthread_holding == 0);
+  ink_assert(m->thread_holding == 0);
+  return ink_mutex_destroy(&(m->the_mutex));
+}
+
+int
+rec_mutex_acquire(RecMutex * m)
+{
+
+  ink_thread this_thread = ink_thread_self();
+
+  if (m->thread_holding != this_thread) {
+    ink_mutex_acquire(&(m->the_mutex));
+    m->thread_holding = this_thread;
+  }
+
+  m->nthread_holding++;
+  return 0;
+}
+
+int
+rec_mutex_release(RecMutex * m)
+{
+
+  if (m->nthread_holding != 0) {
+    m->nthread_holding--;
+    if (m->nthread_holding == 0) {
+      m->thread_holding = 0;
+      ink_mutex_release(&(m->the_mutex));
+    }
+  }
+  return 0;
+}
diff --git a/lib/records/RecProcess.cc b/lib/records/RecProcess.cc
new file mode 100644
index 00000000..0a38cb86
--- /dev/null
+++ b/lib/records/RecProcess.cc
@@ -0,0 +1,889 @@
+/** @file
+
+  Record process definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "I_Tasks.h"
+
+#include "P_EventSystem.h"
+#include "P_RecCore.h"
+#include "P_RecProcess.h"
+#include "P_RecMessage.h"
+#include "P_RecUtils.h"
+#include "P_RecFile.h"
+
+#include "mgmtapi.h"
+
+static bool g_initialized = false;
+static bool g_message_initialized = false;
+static bool g_started = false;
+static EventNotify g_force_req_notify;
+static int g_rec_raw_stat_sync_interval_ms = REC_RAW_STAT_SYNC_INTERVAL_MS;
+static int g_rec_config_update_interval_ms = REC_CONFIG_UPDATE_INTERVAL_MS;
+static int g_rec_remote_sync_interval_ms = REC_REMOTE_SYNC_INTERVAL_MS;
+static Event *raw_stat_sync_cont_event;
+static Event *config_update_cont_event;
+static Event *sync_cont_event;
+
+//-------------------------------------------------------------------------
+// i_am_the_record_owner, only used for librecprocess.a
+//-------------------------------------------------------------------------
+bool
+i_am_the_record_owner(RecT rec_type)
+{
+  if (g_mode_type == RECM_CLIENT) {
+    switch (rec_type) {
+    case RECT_PROCESS:
+    case RECT_PLUGIN:
+      return true;
+    case RECT_CONFIG:
+    case RECT_NODE:
+    case RECT_CLUSTER:
+    case RECT_LOCAL:
+      return false;
+    default:
+      ink_assert(!"Unexpected RecT type");
+      return false;
+    }
+  } else if (g_mode_type == RECM_STAND_ALONE) {
+    switch (rec_type) {
+    case RECT_CONFIG:
+    case RECT_PROCESS:
+    case RECT_NODE:
+    case RECT_CLUSTER:
+    case RECT_LOCAL:
+    case RECT_PLUGIN:
+      return true;
+    default:
+      ink_assert(!"Unexpected RecT type");
+      return false;
+    }
+  }
+
+  return false;
+}
+
+//-------------------------------------------------------------------------
+// Simple setters for the intervals to decouple this from the proxy
+//-------------------------------------------------------------------------
+void
+RecProcess_set_raw_stat_sync_interval_ms(int ms) {
+  Debug("statsproc", "g_rec_raw_stat_sync_interval_ms -> %d", ms);
+  g_rec_raw_stat_sync_interval_ms = ms;
+  if (raw_stat_sync_cont_event) {
+    Debug("statsproc", "Rescheduling raw-stat syncer");
+    raw_stat_sync_cont_event->schedule_every(HRTIME_MSECONDS(g_rec_raw_stat_sync_interval_ms));
+  }
+}
+void
+RecProcess_set_config_update_interval_ms(int ms) {
+  Debug("statsproc", "g_rec_config_update_interval_ms -> %d", ms);
+  g_rec_config_update_interval_ms = ms;
+  if (config_update_cont_event) {
+    Debug("statsproc", "Rescheduling config syncer");
+    config_update_cont_event->schedule_every(HRTIME_MSECONDS(g_rec_config_update_interval_ms));
+  }
+}
+void
+RecProcess_set_remote_sync_interval_ms(int ms) {
+  Debug("statsproc", "g_rec_remote_sync_interval_ms -> %d", ms);
+  g_rec_remote_sync_interval_ms = ms;
+  if (sync_cont_event) {
+    Debug("statsproc", "Rescheduling remote syncer");
+    sync_cont_event->schedule_every(HRTIME_MSECONDS(g_rec_remote_sync_interval_ms));
+  }
+}
+
+//-------------------------------------------------------------------------
+// raw_stat_get_total
+//-------------------------------------------------------------------------
+static int
+raw_stat_get_total(RecRawStatBlock *rsb, int id, RecRawStat *total)
+{
+  int i;
+  RecRawStat *tlp;
+
+  total->sum = 0;
+  total->count = 0;
+
+  // get global values
+  total->sum = rsb->global[id]->sum;
+  total->count = rsb->global[id]->count;
+
+  // get thread local values
+  for (i = 0; i < eventProcessor.n_ethreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_ethreads[i]) + rsb->ethr_stat_offset)) + id;
+    total->sum += tlp->sum;
+    total->count += tlp->count;
+  }
+
+  for (i = 0; i < eventProcessor.n_dthreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_dthreads[i]) + rsb->ethr_stat_offset)) + id;
+    total->sum += tlp->sum;
+    total->count += tlp->count;
+  }
+
+  if (total->sum < 0) { // Assure that we stay positive
+    total->sum = 0;
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// raw_stat_sync_to_global
+//-------------------------------------------------------------------------
+static int
+raw_stat_sync_to_global(RecRawStatBlock *rsb, int id)
+{
+  int i;
+  RecRawStat *tlp;
+  RecRawStat total;
+
+  total.sum = 0;
+  total.count = 0;
+
+  // sum the thread local values
+  for (i = 0; i < eventProcessor.n_ethreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_ethreads[i]) + rsb->ethr_stat_offset)) + id;
+    total.sum += tlp->sum;
+    total.count += tlp->count;
+  }
+
+  for (i = 0; i < eventProcessor.n_dthreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_dthreads[i]) + rsb->ethr_stat_offset)) + id;
+    total.sum += tlp->sum;
+    total.count += tlp->count;
+  }
+
+  if (total.sum < 0) { // Assure that we stay positive
+    total.sum = 0;
+  }
+
+  // lock so the setting of the globals and last values are atomic
+  ink_mutex_acquire(&(rsb->mutex));
+
+  // get the delta from the last sync
+  RecRawStat delta;
+  delta.sum = total.sum - rsb->global[id]->last_sum;
+  delta.count = total.count - rsb->global[id]->last_count;
+
+  // This is too verbose now, so leaving it out / leif
+  //Debug("stats", "raw_stat_sync_to_global(): rsb pointer:%p id:%d delta:%" PRId64 " total:%" PRId64 " last:%" PRId64 " global:%" PRId64 "\n",
+  //rsb, id, delta.sum, total.sum, rsb->global[id]->last_sum, rsb->global[id]->sum);
+
+  // increment the global values by the delta
+  ink_atomic_increment(&(rsb->global[id]->sum), delta.sum);
+  ink_atomic_increment(&(rsb->global[id]->count), delta.count);
+
+  // set the new totals as the last values seen
+  ink_atomic_swap(&(rsb->global[id]->last_sum), total.sum);
+  ink_atomic_swap(&(rsb->global[id]->last_count), total.count);
+
+  ink_mutex_release(&(rsb->mutex));
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// raw_stat_clear
+//-------------------------------------------------------------------------
+static int
+raw_stat_clear(RecRawStatBlock *rsb, int id)
+{
+  Debug("stats", "raw_stat_clear(): rsb pointer:%p id:%d\n", rsb, id);
+
+  // the globals need to be reset too
+  // lock so the setting of the globals and last values are atomic
+  ink_mutex_acquire(&(rsb->mutex));
+  ink_atomic_swap(&(rsb->global[id]->sum), (int64_t)0);
+  ink_atomic_swap(&(rsb->global[id]->last_sum), (int64_t)0);
+  ink_atomic_swap(&(rsb->global[id]->count), (int64_t)0);
+  ink_atomic_swap(&(rsb->global[id]->last_count), (int64_t)0);
+  ink_mutex_release(&(rsb->mutex));
+
+  // reset the local stats
+  RecRawStat *tlp;
+  for (int i = 0; i < eventProcessor.n_ethreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_ethreads[i]) + rsb->ethr_stat_offset)) + id;
+    ink_atomic_swap(&(tlp->sum), (int64_t)0);
+    ink_atomic_swap(&(tlp->count), (int64_t)0);
+  }
+
+  for (int i = 0; i < eventProcessor.n_dthreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_dthreads[i]) + rsb->ethr_stat_offset)) + id;
+    ink_atomic_swap(&(tlp->sum), (int64_t)0);
+    ink_atomic_swap(&(tlp->count), (int64_t)0);
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// raw_stat_clear_sum
+//-------------------------------------------------------------------------
+static int
+raw_stat_clear_sum(RecRawStatBlock *rsb, int id)
+{
+  Debug("stats", "raw_stat_clear_sum(): rsb pointer:%p id:%d\n", rsb, id);
+
+  // the globals need to be reset too
+  // lock so the setting of the globals and last values are atomic
+  ink_mutex_acquire(&(rsb->mutex));
+  ink_atomic_swap(&(rsb->global[id]->sum), (int64_t)0);
+  ink_atomic_swap(&(rsb->global[id]->last_sum), (int64_t)0);
+  ink_mutex_release(&(rsb->mutex));
+
+  // reset the local stats
+  RecRawStat *tlp;
+  for (int i = 0; i < eventProcessor.n_ethreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_ethreads[i]) + rsb->ethr_stat_offset)) + id;
+    ink_atomic_swap(&(tlp->sum), (int64_t)0);
+  }
+
+  for (int i = 0; i < eventProcessor.n_dthreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_dthreads[i]) + rsb->ethr_stat_offset)) + id;
+    ink_atomic_swap(&(tlp->sum), (int64_t)0);
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// raw_stat_clear_count
+//-------------------------------------------------------------------------
+static int
+raw_stat_clear_count(RecRawStatBlock *rsb, int id)
+{
+  Debug("stats", "raw_stat_clear_count(): rsb pointer:%p id:%d\n", rsb, id);
+
+  // the globals need to be reset too
+  // lock so the setting of the globals and last values are atomic
+  ink_mutex_acquire(&(rsb->mutex));
+  ink_atomic_swap(&(rsb->global[id]->count), (int64_t)0);
+  ink_atomic_swap(&(rsb->global[id]->last_count), (int64_t)0);
+  ink_mutex_release(&(rsb->mutex));
+
+  // reset the local stats
+  RecRawStat *tlp;
+  for (int i = 0; i < eventProcessor.n_ethreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_ethreads[i]) + rsb->ethr_stat_offset)) + id;
+    ink_atomic_swap(&(tlp->count), (int64_t)0);
+  }
+
+  for (int i = 0; i < eventProcessor.n_dthreads; i++) {
+    tlp = ((RecRawStat *) ((char *) (eventProcessor.all_dthreads[i]) + rsb->ethr_stat_offset)) + id;
+    ink_atomic_swap(&(tlp->count), (int64_t)0);
+  }
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// recv_message_cb__process
+//-------------------------------------------------------------------------
+static int
+recv_message_cb__process(RecMessage *msg, RecMessageT msg_type, void *cookie)
+{
+  int err;
+
+  if ((err = recv_message_cb(msg, msg_type, cookie)) == REC_ERR_OKAY) {
+    if (msg_type == RECG_PULL_ACK) {
+      g_force_req_notify.lock();
+      g_force_req_notify.signal();
+      g_force_req_notify.unlock();
+    }
+  }
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// raw_stat_sync_cont
+//-------------------------------------------------------------------------
+struct raw_stat_sync_cont: public Continuation
+{
+  raw_stat_sync_cont(ProxyMutex *m)
+    : Continuation(m)
+  {
+    SET_HANDLER(&raw_stat_sync_cont::exec_callbacks);
+  }
+
+  int exec_callbacks(int event, Event *e)
+  {
+    RecExecRawStatSyncCbs();
+    Debug("statsproc", "raw_stat_sync_cont() processed");
+
+    return EVENT_CONT;
+  }
+};
+
+
+//-------------------------------------------------------------------------
+// config_update_cont
+//-------------------------------------------------------------------------
+struct config_update_cont: public Continuation
+{
+  config_update_cont(ProxyMutex *m)
+    : Continuation(m)
+  {
+    SET_HANDLER(&config_update_cont::exec_callbacks);
+  }
+
+  int exec_callbacks(int event, Event *e)
+  {
+    RecExecConfigUpdateCbs(REC_PROCESS_UPDATE_REQUIRED);
+    Debug("statsproc", "config_update_cont() processed");
+
+    return EVENT_CONT;
+  }
+};
+
+
+//-------------------------------------------------------------------------
+// sync_cont
+//-------------------------------------------------------------------------
+struct sync_cont: public Continuation
+{
+  textBuffer *m_tb;
+
+  sync_cont(ProxyMutex *m)
+    : Continuation(m)
+  {
+    SET_HANDLER(&sync_cont::sync);
+    m_tb = new textBuffer(65536);
+  }
+
+   ~sync_cont()
+  {
+    if (m_tb != NULL) {
+      delete m_tb;
+      m_tb = NULL;
+    }
+  }
+
+  int sync(int event, Event *e)
+  {
+    send_push_message();
+    RecSyncStatsFile();
+    if (RecSyncConfigToTB(m_tb) == REC_ERR_OKAY) {
+        RecWriteConfigFile(m_tb);
+    }
+    Debug("statsproc", "sync_cont() processed");
+
+    return EVENT_CONT;
+  }
+};
+
+
+//-------------------------------------------------------------------------
+// RecProcessInit
+//-------------------------------------------------------------------------
+int
+RecProcessInit(RecModeT mode_type, Diags *_diags)
+{
+  if (g_initialized) {
+    return REC_ERR_OKAY;
+  }
+
+  g_mode_type = mode_type;
+
+  if (RecCoreInit(mode_type, _diags) == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+
+  /* -- defer RecMessageInit() until ProcessManager is initialized and
+   *    started
+   if (RecMessageInit(mode_type) == REC_ERR_FAIL) {
+   return REC_ERR_FAIL;
+   }
+
+   if (RecMessageRegisterRecvCb(recv_message_cb__process, NULL)) {
+   return REC_ERR_FAIL;
+   }
+
+   ink_cond_init(&g_force_req_cond);
+   ink_mutex_init(&g_force_req_mutex, NULL);
+   if (mode_type == RECM_CLIENT) {
+   send_pull_message(RECG_PULL_REQ);
+   ink_cond_wait(&g_force_req_cond, &g_force_req_mutex);
+   ink_mutex_release(&g_force_req_mutex);
+   }
+   */
+
+  g_initialized = true;
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecProcessInitMessage
+//-------------------------------------------------------------------------
+int
+RecProcessInitMessage(RecModeT mode_type)
+{
+  if (g_message_initialized) {
+    return REC_ERR_OKAY;
+  }
+
+  if (RecMessageInit() == REC_ERR_FAIL) {
+    return REC_ERR_FAIL;
+  }
+
+  if (RecMessageRegisterRecvCb(recv_message_cb__process, NULL)) {
+    return REC_ERR_FAIL;
+  }
+
+  if (mode_type == RECM_CLIENT) {
+    send_pull_message(RECG_PULL_REQ);
+    g_force_req_notify.lock();
+    g_force_req_notify.wait();
+    g_force_req_notify.unlock();
+  }
+
+  g_message_initialized = true;
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecProcessStart
+//-------------------------------------------------------------------------
+int
+RecProcessStart(void)
+{
+  if (g_started) {
+    return REC_ERR_OKAY;
+  }
+
+  Debug("statsproc", "Starting sync continuations:");
+  raw_stat_sync_cont *rssc = new raw_stat_sync_cont(new_ProxyMutex());
+  Debug("statsproc", "\traw-stat syncer");
+  raw_stat_sync_cont_event = eventProcessor.schedule_every(rssc, HRTIME_MSECONDS(g_rec_raw_stat_sync_interval_ms), ET_TASK);
+
+  config_update_cont *cuc = new config_update_cont(new_ProxyMutex());
+  Debug("statsproc", "\tconfig syncer");
+  config_update_cont_event = eventProcessor.schedule_every(cuc, HRTIME_MSECONDS(g_rec_config_update_interval_ms), ET_TASK);
+
+  sync_cont *sc = new sync_cont(new_ProxyMutex());
+  Debug("statsproc", "\tremote syncer");
+  sync_cont_event = eventProcessor.schedule_every(sc, HRTIME_MSECONDS(g_rec_remote_sync_interval_ms), ET_TASK);
+
+  g_started = true;
+
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecAllocateRawStatBlock
+//-------------------------------------------------------------------------
+RecRawStatBlock *
+RecAllocateRawStatBlock(int num_stats)
+{
+  off_t ethr_stat_offset;
+  RecRawStatBlock *rsb;
+
+  // allocate thread-local raw-stat memory
+  if ((ethr_stat_offset = eventProcessor.allocate(num_stats * sizeof(RecRawStat))) == -1) {
+    return NULL;
+  }
+  // create the raw-stat-block structure
+  rsb = (RecRawStatBlock *)ats_malloc(sizeof(RecRawStatBlock));
+  memset(rsb, 0, sizeof(RecRawStatBlock));
+  rsb->ethr_stat_offset = ethr_stat_offset;
+  rsb->global = (RecRawStat **)ats_malloc(num_stats * sizeof(RecRawStat *));
+  memset(rsb->global, 0, num_stats * sizeof(RecRawStat *));
+  rsb->num_stats = 0;
+  rsb->max_stats = num_stats;
+  ink_mutex_init(&(rsb->mutex),"net stat mutex");
+  return rsb;
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterRawStat
+//-------------------------------------------------------------------------
+int
+_RecRegisterRawStat(RecRawStatBlock *rsb, RecT rec_type, const char *name, RecDataT data_type, RecPersistT persist_type, int id,
+                   RecRawStatSyncCb sync_cb)
+{
+  Debug("stats", "RecRawStatSyncCb(%s): rsb pointer:%p id:%d\n", name, rsb, id);
+
+  // check to see if we're good to proceed
+  ink_assert(id < rsb->max_stats);
+
+  int err = REC_ERR_OKAY;
+
+  RecRecord *r;
+  RecData data_default;
+  memset(&data_default, 0, sizeof(RecData));
+
+  // register the record
+  if ((r = RecRegisterStat(rec_type, name, data_type, data_default, persist_type)) == NULL) {
+    err = REC_ERR_FAIL;
+    goto Ldone;
+  }
+  r->rsb_id = id; // This is the index within the RSB raw block for this stat, used for lookups by name.
+  if (i_am_the_record_owner(r->rec_type)) {
+    r->sync_required = r->sync_required | REC_PEER_SYNC_REQUIRED;
+  } else {
+    send_register_message(r);
+  }
+
+  // store a pointer to our record->stat_meta.data_raw in our rsb
+  rsb->global[id] = &(r->stat_meta.data_raw);
+  rsb->global[id]->last_sum = 0;
+  rsb->global[id]->last_count = 0;
+
+  // setup the periodic sync callback
+  RecRegisterRawStatSyncCb(name, sync_cb, rsb, id);
+
+Ldone:
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// RecRawStatSync...
+//-------------------------------------------------------------------------
+
+// Note: On these RecRawStatSync callbacks, our 'data' is protected
+// under its lock by the caller, so no need to worry!
+int
+RecRawStatSyncSum(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  RecRawStat total;
+
+  Debug("stats", "raw sync:sum for %s", name);
+  raw_stat_sync_to_global(rsb, id);
+  total.sum = rsb->global[id]->sum;
+  total.count = rsb->global[id]->count;
+  RecDataSetFromInk64(data_type, data, total.sum);
+
+  return REC_ERR_OKAY;
+}
+
+int
+RecRawStatSyncCount(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  RecRawStat total;
+
+  Debug("stats", "raw sync:count for %s", name);
+  raw_stat_sync_to_global(rsb, id);
+  total.sum = rsb->global[id]->sum;
+  total.count = rsb->global[id]->count;
+  RecDataSetFromInk64(data_type, data, total.count);
+
+  return REC_ERR_OKAY;
+}
+
+int
+RecRawStatSyncAvg(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  RecRawStat total;
+  RecFloat avg = 0.0f;
+
+  Debug("stats", "raw sync:avg for %s", name);
+  raw_stat_sync_to_global(rsb, id);
+  total.sum = rsb->global[id]->sum;
+  total.count = rsb->global[id]->count;
+  if (total.count != 0)
+    avg = (float) ((double) total.sum / (double) total.count);
+  RecDataSetFromFloat(data_type, data, avg);
+  return REC_ERR_OKAY;
+}
+
+int
+RecRawStatSyncHrTimeAvg(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  RecRawStat total;
+  RecFloat r;
+
+  Debug("stats", "raw sync:hr-timeavg for %s", name);
+  raw_stat_sync_to_global(rsb, id);
+  total.sum = rsb->global[id]->sum;
+  total.count = rsb->global[id]->count;
+  if (total.count == 0) {
+    r = 0.0f;
+  } else {
+    r = (float) ((double) total.sum / (double) total.count);
+    r = r / (float) (HRTIME_SECOND);
+  }
+  RecDataSetFromFloat(data_type, data, r);
+  return REC_ERR_OKAY;
+}
+
+int
+RecRawStatSyncIntMsecsToFloatSeconds(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  RecRawStat total;
+  RecFloat r;
+
+  Debug("stats", "raw sync:seconds for %s", name);
+  raw_stat_sync_to_global(rsb, id);
+  total.sum = rsb->global[id]->sum;
+  total.count = rsb->global[id]->count;
+  if (total.count == 0) {
+    r = 0.0f;
+  } else {
+    r = (float) ((double) total.sum / 1000);
+  }
+  RecDataSetFromFloat(data_type, data, r);
+  return REC_ERR_OKAY;
+}
+
+int
+RecRawStatSyncMHrTimeAvg(const char *name, RecDataT data_type, RecData *data, RecRawStatBlock *rsb, int id)
+{
+  RecRawStat total;
+  RecFloat r;
+
+  Debug("stats", "raw sync:mhr-timeavg for %s", name);
+  raw_stat_sync_to_global(rsb, id);
+  total.sum = rsb->global[id]->sum;
+  total.count = rsb->global[id]->count;
+  if (total.count == 0) {
+    r = 0.0f;
+  } else {
+    r = (float) ((double) total.sum / (double) total.count);
+    r = r / (float) (HRTIME_MSECOND);
+  }
+  RecDataSetFromFloat(data_type, data, r);
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecIncrRawStatXXX
+//-------------------------------------------------------------------------
+int
+RecIncrRawStatBlock(RecRawStatBlock */* rsb ATS_UNUSED */, EThread */* ethread ATS_UNUSED */,
+                    RecRawStat */* stat_array ATS_UNUSED */)
+{
+  return REC_ERR_FAIL;
+}
+
+
+//-------------------------------------------------------------------------
+// RecSetRawStatXXX
+//-------------------------------------------------------------------------
+int
+RecSetRawStatSum(RecRawStatBlock *rsb, int id, int64_t data)
+{
+  raw_stat_clear_sum(rsb, id);
+  ink_atomic_swap(&(rsb->global[id]->sum), data);
+  return REC_ERR_OKAY;
+}
+
+int
+RecSetRawStatCount(RecRawStatBlock *rsb, int id, int64_t data)
+{
+  raw_stat_clear_count(rsb, id);
+  ink_atomic_swap(&(rsb->global[id]->count), data);
+  return REC_ERR_OKAY;
+}
+
+int
+RecSetRawStatBlock(RecRawStatBlock */* rsb ATS_UNUSED */, RecRawStat */* stat_array ATS_UNUSED */)
+{
+  return REC_ERR_FAIL;
+}
+
+
+//-------------------------------------------------------------------------
+// RecGetRawStatXXX
+//-------------------------------------------------------------------------
+
+int
+RecGetRawStatSum(RecRawStatBlock *rsb, int id, int64_t *data)
+{
+  RecRawStat total;
+
+  raw_stat_get_total(rsb, id, &total);
+  *data = total.sum;
+  return REC_ERR_OKAY;
+}
+
+int
+RecGetRawStatCount(RecRawStatBlock *rsb, int id, int64_t *data)
+{
+  RecRawStat total;
+
+  raw_stat_get_total(rsb, id, &total);
+  *data = total.count;
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecIncrGlobalRawStatXXX
+//-------------------------------------------------------------------------
+int
+RecIncrGlobalRawStat(RecRawStatBlock *rsb, int id, int64_t incr)
+{
+  ink_atomic_increment(&(rsb->global[id]->sum), incr);
+  ink_atomic_increment(&(rsb->global[id]->count), 1);
+  return REC_ERR_OKAY;
+}
+
+int
+RecIncrGlobalRawStatSum(RecRawStatBlock *rsb, int id, int64_t incr)
+{
+  ink_atomic_increment(&(rsb->global[id]->sum), incr);
+  return REC_ERR_OKAY;
+}
+
+int
+RecIncrGlobalRawStatCount(RecRawStatBlock *rsb, int id, int64_t incr)
+{
+  ink_atomic_increment(&(rsb->global[id]->count), incr);
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecSetGlobalRawStatXXX
+//-------------------------------------------------------------------------
+int
+RecSetGlobalRawStatSum(RecRawStatBlock *rsb, int id, int64_t data)
+{
+  ink_atomic_swap(&(rsb->global[id]->sum), data);
+  return REC_ERR_OKAY;
+}
+
+int
+RecSetGlobalRawStatCount(RecRawStatBlock *rsb, int id, int64_t data)
+{
+  ink_atomic_swap(&(rsb->global[id]->count), data);
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RecGetGlobalRawStatXXX
+//-------------------------------------------------------------------------
+int
+RecGetGlobalRawStatSum(RecRawStatBlock *rsb, int id, int64_t *data)
+{
+  *data = rsb->global[id]->sum;
+  return REC_ERR_OKAY;
+}
+
+int
+RecGetGlobalRawStatCount(RecRawStatBlock *rsb, int id, int64_t *data)
+{
+  *data = rsb->global[id]->count;
+  return REC_ERR_OKAY;
+}
+
+
+//-------------------------------------------------------------------------
+// RegGetGlobalRawStatXXXPtr
+//-------------------------------------------------------------------------
+RecRawStat *
+RecGetGlobalRawStatPtr(RecRawStatBlock *rsb, int id)
+{
+  return rsb->global[id];
+}
+
+int64_t *
+RecGetGlobalRawStatSumPtr(RecRawStatBlock *rsb, int id)
+{
+  return &(rsb->global[id]->sum);
+}
+
+int64_t *
+RecGetGlobalRawStatCountPtr(RecRawStatBlock *rsb, int id)
+{
+  return &(rsb->global[id]->count);
+}
+
+
+//-------------------------------------------------------------------------
+// RecRegisterRawStatSyncCb
+//-------------------------------------------------------------------------
+int
+RecRegisterRawStatSyncCb(const char *name, RecRawStatSyncCb sync_cb, RecRawStatBlock *rsb, int id)
+{
+  int err = REC_ERR_FAIL;
+  RecRecord *r;
+
+  ink_rwlock_rdlock(&g_records_rwlock);
+  if (ink_hash_table_lookup(g_records_ht, name, (void **) &r)) {
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_STAT(r->rec_type)) {
+      if (!(r->stat_meta.sync_cb)) {
+        r->stat_meta.sync_rsb = rsb;
+        r->stat_meta.sync_id = id;
+        r->stat_meta.sync_cb = sync_cb;
+        r->stat_meta.sync_rsb->global[r->stat_meta.sync_id]->version = r->version;
+        err = REC_ERR_OKAY;
+      } else {
+        ink_release_assert(false); // We shouldn't register CBs twice...
+      }
+    }
+    rec_mutex_release(&(r->lock));
+  }
+  ink_rwlock_unlock(&g_records_rwlock);
+
+  return err;
+}
+
+
+//-------------------------------------------------------------------------
+// RecExecRawStatSyncCbs
+//-------------------------------------------------------------------------
+int
+RecExecRawStatSyncCbs()
+{
+  RecRecord *r;
+  int i, num_records;
+
+  num_records = g_num_records;
+  for (i = 0; i < num_records; i++) {
+    r = &(g_records[i]);
+    rec_mutex_acquire(&(r->lock));
+    if (REC_TYPE_IS_STAT(r->rec_type)) {
+      if (r->stat_meta.sync_cb) {
+        if (r->version && r->version != r->stat_meta.sync_rsb->global[r->stat_meta.sync_id]->version) {
+          raw_stat_clear(r->stat_meta.sync_rsb, r->stat_meta.sync_id);
+          r->stat_meta.sync_rsb->global[r->stat_meta.sync_id]->version = r->version;
+        } else {
+          (*(r->stat_meta.sync_cb)) (r->name, r->data_type, &(r->data), r->stat_meta.sync_rsb, r->stat_meta.sync_id);
+        }
+        r->sync_required = REC_SYNC_REQUIRED;
+      }
+    }
+    rec_mutex_release(&(r->lock));
+  }
+
+  return REC_ERR_OKAY;
+}
diff --git a/lib/records/RecTree.cc b/lib/records/RecTree.cc
new file mode 100644
index 00000000..ff191300
--- /dev/null
+++ b/lib/records/RecTree.cc
@@ -0,0 +1,277 @@
+/** @file
+
+  RecTree and RecTreeNode definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "P_RecTree.h"
+
+#define RecTreeDebug printf
+bool rec_debug = false;
+
+
+/*************************************************************************
+ *
+ * RecTreeNode
+ *
+ *************************************************************************/
+RecTreeNode::RecTreeNode(const char *t):
+record_ptr(NULL),
+subtree_ptr(new RecTree(this)),
+var_name_ptr(NULL),
+num_leaf(0)
+{
+  if (t) {
+    node_name = ats_strdup(t);
+  } else {
+    node_name = ats_strdup("root");
+  }
+}
+
+
+
+RecTreeNode::~RecTreeNode()
+{
+  ats_free(node_name);
+}
+
+/**
+  Print the current node's content. If this node is a leaf, that is,
+  the subtree_list print count is zero, print the full variable name.
+
+*/
+void
+RecTreeNode::print()
+{
+  if (num_leaf == 0) {
+    RecTreeDebug("\t Leaf: %s\n", var_name_ptr);
+  } else {
+    subtree_ptr->print();
+    RecTreeDebug("Node: %s\n", node_name);
+  }
+}
+
+
+/*************************************************************************
+ *
+ * RecTree
+ *
+ *************************************************************************/
+RecTree::RecTree(RecTreeNode * n)
+{
+  if (n == NULL) {
+    n = new RecTreeNode("base");
+  }
+  this_node = n;
+}
+
+
+/*************************************************************************
+ *
+ *************************************************************************/
+void
+RecTree::rec_tree_insert(const char *var_name, const char *var_name_ptr)
+{
+  if ((var_name == NULL) || (!strlen(var_name))) {
+    return;
+  }
+
+  if ((var_name_ptr == NULL) || (!strlen(var_name_ptr))) {
+    var_name_ptr = var_name;
+  }
+
+  Tokenizer targetTok(".");
+  targetTok.Initialize(var_name);
+  tok_iter_state targetTok_state;
+  const char *first_token = targetTok.iterFirst(&targetTok_state);
+
+  const char *rest_token = strchr(var_name, REC_VAR_NAME_DELIMITOR);
+  if (rest_token) {
+    rest_token++;
+    if (rec_debug) {
+      RecTreeDebug("%s %s\n", first_token, rest_token);
+    }
+  }
+
+  RecTreeNode *subtree = NULL;
+
+  // First subtree who has the first token
+  for (subtree = first(); subtree; subtree = next(subtree)) {
+    if (!strcmp(subtree->node_name, first_token)) {
+      if (rec_debug) {
+        //      RecTreeDebug("RecTree::insert() -- found subtree %s\n", first_token);
+      }
+      break;
+    }
+  }
+
+  // no subtree has the first token
+  if (!subtree) {
+    if (rec_debug) {
+      RecTreeDebug("RecTree::insert() -- add subtree with %s\n", first_token);
+    }
+    subtree = new RecTreeNode((char *) first_token);
+    ink_assert(subtree);
+    m_root.enqueue(subtree);
+  }
+
+  if (rest_token) {
+    if (rec_debug) {
+      RecTreeDebug("RecTree::insert() -- insert the rest %s\n", rest_token);
+    }
+    subtree->subtree_ptr->rec_tree_insert(rest_token, var_name_ptr);
+  } else {
+    subtree->var_name_ptr = var_name_ptr;
+    if (rec_debug) {
+      RecTreeDebug("RecTree:insert() -- leaf node: %s\n", subtree->var_name_ptr);
+    }
+  }
+
+  if (this_node) {
+    (this_node->num_leaf)++;
+  }
+
+}
+
+
+/*************************************************************************
+ *
+ *************************************************************************/
+void
+RecTree::print()
+{
+  for (RecTreeNode * node = first(); node; node = next(node)) {
+    node->print();
+  }
+}
+
+
+/*************************************************************************
+ *
+ *************************************************************************/
+RecTree *
+RecTree::rec_tree_get(char *path_name)
+{
+
+  Tokenizer targetTok(".");
+  targetTok.Initialize(path_name);
+  tok_iter_state targetTok_state;
+  const char *first_token = targetTok.iterFirst(&targetTok_state);
+
+  char *rest_token = strchr(path_name, REC_VAR_NAME_DELIMITOR);
+  if (rest_token != NULL) {
+    rest_token++;
+  }
+
+  RecTreeNode *subtree = NULL;
+
+  // First subtree who has the first token
+  for (subtree = first(); subtree; subtree = next(subtree)) {
+    if (!strcmp(subtree->node_name, first_token)) {
+      if (rec_debug) {
+        RecTreeDebug("RecTree::get() -- found subtree %s\n", first_token);
+      }
+      break;
+    }
+  }
+
+  if (!subtree) {
+    if (rec_debug) {
+      RecTreeDebug("RecTree::get() -- can't find subtree %s\n", first_token);
+    }
+    return NULL;
+  } else {
+    char wildcard[2];
+    memset(wildcard, 0, 2);
+    snprintf(wildcard, sizeof(wildcard), "%c", REC_VAR_NAME_WILDCARD);
+    if (rest_token == NULL || !strcmp(rest_token, wildcard)) {
+      return subtree->subtree_ptr;
+    } else {
+      if (rec_debug) {
+        RecTreeDebug("RecTree::get() -- getting the rest %s\n", rest_token);
+      }
+      return subtree->subtree_ptr->rec_tree_get(rest_token);
+    }
+  }
+
+}
+
+
+/*************************************************************************
+ * rec_tree_get_list
+ *
+ *************************************************************************/
+void
+RecTree::rec_tree_get_list(char *path_name, char ***buf, int *count)
+{
+
+  int i = 0;
+  RecTree *subtree = rec_tree_get(path_name);
+
+  if (!subtree) {
+    (*count) = 0;
+    return;
+  }
+
+  (*count) = subtree->this_node->num_leaf;
+  if (rec_debug) {
+    RecTreeDebug("RecTreeGetList subtree %s has %d leafs\n", subtree->this_node->node_name, (*count));
+  }
+
+  *buf = (char **)ats_malloc(sizeof(char *) * (*count));
+  for (i = 0; i < (*count); i++) {
+    (*buf)[i] = (char *)ats_malloc(sizeof(char));
+  }
+
+  int index = 0;
+  subtree->p_rec_tree_get_list(path_name, &(*buf), &index);
+  ink_assert((*count) == index);
+
+  if (rec_debug) {
+    for (i = 0; i < (*count); i++) {
+      RecTreeDebug("[%d] %s\n", i, (*buf)[i]);
+    }
+  }
+
+}
+
+
+/** Recursive/private version of RecTreeGetList(). */
+void
+RecTree::p_rec_tree_get_list(char *path_name, char ***buffer, int *index)
+{
+
+  if (this_node->var_name_ptr) {
+    (*buffer)[(*index)] = (char*)this_node->var_name_ptr;
+    if (rec_debug) {
+      RecTreeDebug("%d %s\n", (*index), (*buffer)[(*index)]);
+    }
+    (*index)++;
+  }
+
+  for (RecTreeNode * subtree = first(); subtree; subtree = next(subtree)) {
+    if (rec_debug) {
+      RecTreeDebug("current node: %s, subtree node: %s\n", this_node->node_name, subtree->node_name);
+    }
+    subtree->subtree_ptr->p_rec_tree_get_list(&(*path_name), &(*buffer), &(*index));
+  }
+
+}
diff --git a/lib/records/RecUtils.cc b/lib/records/RecUtils.cc
new file mode 100644
index 00000000..97feec0b
--- /dev/null
+++ b/lib/records/RecUtils.cc
@@ -0,0 +1,443 @@
+/** @file
+
+  Record utils definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "P_RecUtils.h"
+#include "P_RecCore.h"
+#include "P_RecTree.h"
+
+//-------------------------------------------------------------------------
+// RecRecord initializer / Free
+//-------------------------------------------------------------------------
+void
+RecRecordInit(RecRecord *r)
+{
+  ink_zero(*r);
+  rec_mutex_init(&(r->lock), NULL);
+}
+
+void
+RecRecordFree(RecRecord *r)
+{
+  rec_mutex_destroy(&(r->lock));
+}
+
+//-------------------------------------------------------------------------
+// RecAlloc
+//-------------------------------------------------------------------------
+RecRecord*
+RecAlloc(RecT rec_type, const char *name, RecDataT data_type)
+{
+  if (g_num_records >= REC_MAX_RECORDS) {
+    Warning("too many stats/configs, please increase REC_MAX_RECORDS or rebuild with --with_max_api_stats=<n>");
+    return NULL;
+  }
+
+  int i = ink_atomic_increment(&g_num_records, 1);
+  RecRecord *r = &(g_records[i]);
+
+  RecRecordInit(r);
+  r->rec_type = rec_type;
+  r->name = ats_strdup(name);
+  r->order = i;
+  r->data_type = data_type;
+
+  g_records_tree->rec_tree_insert(r->name);
+
+  return r;
+}
+
+
+//-------------------------------------------------------------------------
+// RecDataClear
+//-------------------------------------------------------------------------
+void
+RecDataClear(RecDataT data_type, RecData * data)
+{
+  if ((data_type == RECD_STRING) && (data->rec_string)) {
+    ats_free(data->rec_string);
+  }
+  memset(data, 0, sizeof(RecData));
+}
+
+void
+RecDataSetMax(RecDataT type, RecData * data)
+{
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    data->rec_int = INT64_MAX; // Assumes rec_int is int64_t, which it currently is
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    data->rec_float = FLT_MAX;
+    break;
+  default:
+    Fatal("unsupport type:%d\n", type);
+  }
+}
+
+void
+RecDataSetMin(RecDataT type, RecData * data)
+{
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    data->rec_int = INT64_MIN; // Assumes rec_int is int64_t, which it currently is
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    data->rec_float = FLT_MIN;
+    break;
+  default:
+    Fatal("unsupport type:%d\n", type);
+  }
+}
+
+//-------------------------------------------------------------------------
+// RecDataSet
+//-------------------------------------------------------------------------
+bool
+RecDataSet(RecDataT data_type, RecData * data_dst, RecData * data_src)
+{
+  bool rec_set = false;
+
+  switch (data_type) {
+  case RECD_STRING:
+    if (data_src->rec_string == NULL) {
+      if (data_dst->rec_string != NULL) {
+        ats_free(data_dst->rec_string);
+        data_dst->rec_string = NULL;
+        rec_set = true;
+      }
+    } else if (((data_dst->rec_string) && (strcmp(data_dst->rec_string, data_src->rec_string) != 0)) ||
+               ((data_dst->rec_string == NULL) && (data_src->rec_string != NULL))) {
+      if (data_dst->rec_string)
+        ats_free(data_dst->rec_string);
+
+      data_dst->rec_string = ats_strdup(data_src->rec_string);
+      rec_set = true;
+      // Chop trailing spaces
+      char *end = data_dst->rec_string + strlen(data_dst->rec_string) - 1;
+
+      while (end >= data_dst->rec_string && isspace(*end))
+        end--;
+      *(end + 1) = '\0';
+    }
+    break;
+  case RECD_INT:
+    if (data_dst->rec_int != data_src->rec_int) {
+      data_dst->rec_int = data_src->rec_int;
+      rec_set = true;
+    }
+    break;
+  case RECD_FLOAT:
+    if (data_dst->rec_float != data_src->rec_float) {
+      data_dst->rec_float = data_src->rec_float;
+      rec_set = true;
+    }
+    break;
+  case RECD_COUNTER:
+    if (data_dst->rec_counter != data_src->rec_counter) {
+      data_dst->rec_counter = data_src->rec_counter;
+      rec_set = true;
+    }
+    break;
+  default:
+    ink_assert(!"Wrong RECD type!");
+  }
+  return rec_set;
+
+}
+
+int
+RecDataCmp(RecDataT type, RecData left, RecData right)
+{
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    if (left.rec_int > right.rec_int)
+      return 1;
+    else if (left.rec_int == right.rec_int)
+      return 0;
+    else
+      return -1;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    if (left.rec_float > right.rec_float)
+      return 1;
+    else if (left.rec_float == right.rec_float)
+      return 0;
+    else
+      return -1;
+  default:
+    Fatal("unsupport type:%d\n", type);
+    return 0;
+  }
+}
+
+RecData
+RecDataAdd(RecDataT type, RecData left, RecData right)
+{
+  RecData val;
+  memset(&val, 0, sizeof(val));
+
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    val.rec_int = left.rec_int + right.rec_int;
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    val.rec_float = left.rec_float + right.rec_float;
+    break;
+  default:
+    Fatal("unsupported type:%d\n", type);
+    break;
+  }
+  return val;
+}
+
+RecData
+RecDataSub(RecDataT type, RecData left, RecData right)
+{
+  RecData val;
+  memset(&val, 0, sizeof(val));
+
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    val.rec_int = left.rec_int - right.rec_int;
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    val.rec_float = left.rec_float - right.rec_float;
+    break;
+  default:
+    Fatal("unsupported type:%d\n", type);
+    break;
+  }
+  return val;
+}
+
+RecData
+RecDataMul(RecDataT type, RecData left, RecData right)
+{
+  RecData val;
+  memset(&val, 0, sizeof(val));
+
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    val.rec_int = left.rec_int * right.rec_int;
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    val.rec_float = left.rec_float * right.rec_float;
+    break;
+  default:
+    Fatal("unsupported type:%d\n", type);
+    break;
+  }
+  return val;
+}
+
+RecData
+RecDataDiv(RecDataT type, RecData left, RecData right)
+{
+  RecData val;
+  memset(&val, 0, sizeof(val));
+
+  switch (type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+  case RECD_COUNTER:
+    val.rec_int = left.rec_int / right.rec_int;
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    val.rec_float = left.rec_float / right.rec_float;
+    break;
+  default:
+    Fatal("unsupported type:%d\n", type);
+    break;
+  }
+  return val;
+}
+
+//-------------------------------------------------------------------------
+// RecDataSetFromInk64
+//-------------------------------------------------------------------------
+bool
+RecDataSetFromInk64(RecDataT data_type, RecData * data_dst, int64_t data_int64)
+{
+  switch (data_type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+    data_dst->rec_int = data_int64;
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    data_dst->rec_float = (float) (data_int64);
+    break;
+  case RECD_STRING:
+    {
+      char buf[32 + 1];
+
+      ats_free(data_dst->rec_string);
+      snprintf(buf, 32, "%" PRId64 "", data_int64);
+      data_dst->rec_string = ats_strdup(buf);
+      break;
+    }
+  case RECD_COUNTER:
+    data_dst->rec_counter = data_int64;
+    break;
+  default:
+    ink_assert(!"Unexpected RecD type");
+    return false;
+  }
+
+  return true;
+}
+
+
+//-------------------------------------------------------------------------
+// RecDataSetFromFloat
+//-------------------------------------------------------------------------
+bool
+RecDataSetFromFloat(RecDataT data_type, RecData * data_dst, float data_float)
+{
+  switch (data_type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+    data_dst->rec_int = (RecInt) data_float;
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    data_dst->rec_float = (float) (data_float);
+    break;
+  case RECD_STRING:
+    {
+      char buf[32 + 1];
+
+      ats_free(data_dst->rec_string);
+      snprintf(buf, 32, "%f", data_float);
+      data_dst->rec_string = ats_strdup(buf);
+      break;
+    }
+  case RECD_COUNTER:
+    data_dst->rec_counter = (RecCounter) data_float;
+    break;
+  default:
+    ink_assert(!"Unexpected RecD type");
+    return false;
+  }
+
+  return true;
+}
+
+
+//-------------------------------------------------------------------------
+// RecDataSetFromString
+//-------------------------------------------------------------------------
+bool
+RecDataSetFromString(RecDataT data_type, RecData * data_dst, const char *data_string)
+{
+  bool rec_set;
+  RecData data_src;
+
+  switch (data_type) {
+#if defined(STAT_PROCESSOR)
+  case RECD_FX:
+#endif
+  case RECD_INT:
+    data_src.rec_int = ink_atoi64(data_string);
+    break;
+#if defined(STAT_PROCESSOR)
+  case RECD_CONST:
+#endif
+  case RECD_FLOAT:
+    data_src.rec_float = atof(data_string);
+    break;
+  case RECD_STRING:
+    if (strcmp((data_string), "NULL") == 0) {
+      data_src.rec_string = NULL;
+    } else {
+      // It's OK to cast away the const here, because RecDataSet will copy the string.
+      data_src.rec_string = (char *)data_string;
+    }
+    break;
+  case RECD_COUNTER:
+    data_src.rec_counter = ink_atoi64(data_string);
+    break;
+  default:
+    ink_assert(!"Unexpected RecD type");
+    return false;
+  }
+  rec_set = RecDataSet(data_type, data_dst, &data_src);
+
+  return rec_set;
+}
+
diff --git a/lib/records/test_I_RecLocal.cc b/lib/records/test_I_RecLocal.cc
new file mode 100644
index 00000000..c45f3f49
--- /dev/null
+++ b/lib/records/test_I_RecLocal.cc
@@ -0,0 +1,279 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_RecLocal.h"
+#include "P_RecUtils.h"
+#include "test_RecordsConfig.h"
+
+#include "P_RecCore.h"
+
+Diags *diags = NULL;
+void RecDumpRecordsHt(RecT rec_type);
+
+
+//-------------------------------------------------------------------------
+// Test01: Callback Test
+//
+// The following test verifies that the callbacks are executed.
+//-------------------------------------------------------------------------
+int g_config_update_result = 0;
+
+int
+cb_test_1a(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  if ((cookie == (void *) 0x12345678) && (strcmp(data.rec_string, "cb_test_1__changed") == 0)) {
+    g_config_update_result++;
+    printf("    - cb_test_1(%d) name: %s, data: %s, cookie: 0x%x\n",
+           g_config_update_result, name, data.rec_string, cookie);
+  } else {
+    g_config_update_result = 0;
+  }
+  return REC_ERR_OKAY;
+}
+
+int
+cb_test_1b(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  return cb_test_1a(name, data_type, data, cookie);
+}
+
+int
+cb_test_2a(const char */* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+           RecData /* data ATS_UNUSED */, void */* cookie ATS_UNUSED */)
+{
+  g_config_update_result = -1;
+  return REC_ERR_FAIL;
+}
+
+int
+cb_test_2b(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  return cb_test_2a(name, data_type, data, cookie);
+}
+
+void
+Test01()
+{
+  g_config_update_result = 0;
+  printf("\n[Test01: Callback Tests]\n");
+  int failures = 0;
+
+  printf("  [RecRegisterConfigUpdateCb]\n");
+
+  // Initialize variables
+  RecSetRecordString("proxy.config.local.cb_test_1", "cb_test_1__original");
+  RecSetRecordString("proxy.config.local.cb_test_2", "cb_test_2__original");
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Register config update callbacks
+  RecRegisterConfigUpdateCb("proxy.config.local.cb_test_1", cb_test_1a, (void *) 0x12345678);
+  RecRegisterConfigUpdateCb("proxy.config.local.cb_test_1", cb_test_1b, (void *) 0x12345678);
+  RecRegisterConfigUpdateCb("proxy.config.local.cb_test_2", cb_test_2a, (void *) 0x87654321);
+  RecRegisterConfigUpdateCb("proxy.config.local.cb_test_2", cb_test_2b, (void *) 0x87654321);
+
+  // Change proxy.config.cb_test_1
+  RecSetRecordString("proxy.config.local.cb_test_1", "cb_test_1__changed");
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Check globals to make sure the right thing happened
+  if (g_config_update_result == 2) {
+    printf("    SUMMARY: PASS (%d)\n", g_config_update_result);
+  } else {
+    printf("    SUMMARY: FAIL (%d)\n", g_config_update_result);
+  }
+
+}
+
+
+//-------------------------------------------------------------------------
+// Test02: Callback (Multi-lock) Test
+//
+// The following test verifies we can access the variables within its own
+// callbacks. When a callback is invoked, the record's mutex lock has
+// already taken. If RecMutex works properly, we can still access the
+// variable within its own callback.
+//-------------------------------------------------------------------------
+int
+cb_test_3a(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  RecString rec_result;
+  int rec_status = RecGetRecordString_Xmalloc(name, &rec_result);
+
+  if ((rec_status == REC_ERR_OKAY) &&
+      (cookie == (void *) 0x12344321) && (strcmp(rec_result, "cb_test_3__changed") == 0)) {
+
+    ink_assert(strcmp(rec_result, data.rec_string) == 0);
+
+    g_config_update_result++;
+    printf("    - cb_test_3(%d) name: %s, data: %s, cookie: 0x%x\n", g_config_update_result, name, rec_result, cookie);
+  } else {
+    g_config_update_result = 0;
+  }
+  return REC_ERR_OKAY;
+}
+
+int
+cb_test_3b(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  return cb_test_3a(name, data_type, data, cookie);
+}
+
+void
+Test02()
+{
+  g_config_update_result = 0;
+  printf("\n[Test02: Callback (Multi-lock) Test]\n");
+  int failures = 0;
+
+  printf("  [RecRegisterConfigUpdateCb]\n");
+
+  // Initialize variables
+  RecSetRecordString("proxy.config.local.cb_test_3", "cb_test_3__original");
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Register config update callbacks
+  RecRegisterConfigUpdateCb("proxy.config.local.cb_test_3", cb_test_3a, (void *) 0x12344321);
+  RecRegisterConfigUpdateCb("proxy.config.local.cb_test_3", cb_test_3b, (void *) 0x12344321);
+
+  // Change proxy.config.cb_test_1
+  RecSetRecordString("proxy.config.local.cb_test_3", "cb_test_3__changed");
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Check globals to make sure the right thing happened
+  if (g_config_update_result == 2) {
+    printf("    SUMMARY: PASS (%d)\n", g_config_update_result);
+  } else {
+    printf("    SUMMARY: FAIL (%d)\n", g_config_update_result);
+  }
+
+}
+
+
+//-------------------------------------------------------------------------
+// Test-3: RecTree
+//
+// Simply verifies the number of records in g_records is the same as the
+// number of "proxy" variable reference-able by the RecTree
+//-------------------------------------------------------------------------
+#define SIZE_COMPARE(_a, _b) \
+  RecGetRecordList("proxy."_a, &var_buf, &buf_len); \
+  if (buf_len != 0) {\
+    delete[] var_buf; \
+  } \
+  length = 0; \
+  for (r=0; r<g_num_records; r++) { \
+    if (g_records[r].rec_type == _b) { \
+       length++; \
+     } \
+  } \
+  if (buf_len == length) { \
+    printf("    - proxy.%s.*\t(rec_size:%d == tree_size:%d)\n", _a, length, buf_len); \
+  } else { \
+    printf("    - proxy.%s.*\t(rec_size:%d != tree_size:%d)\n", _a, length, buf_len); \
+    g_config_update_result++; \
+  }
+
+void
+Test03()
+{
+  printf("\n[Test03: RecTree Test]\n");
+
+  int num_proxy = 0;
+  char **var_buf = NULL;
+  int buf_len = 0;
+  int length = 0;
+  int r = 0;
+
+  g_config_update_result = 0;
+
+  // General
+  RecGetRecordList("proxy", &var_buf, &buf_len);
+  length = g_num_records;
+  if (buf_len > 0) {
+    delete[]var_buf;
+  }
+  if (buf_len == length) {
+    printf("    - proxy.*\t\t(rec_size:%d == tree_size:%d)\n", length, buf_len);
+  } else {
+    printf("    - proxy.*\t\t(rec_size:%d != tree_size:%d)\n", length, buf_len);
+    g_config_update_result++;
+  }
+
+  SIZE_COMPARE("plugin", RECT_PLUGIN);
+  SIZE_COMPARE("config", RECT_CONFIG);
+  SIZE_COMPARE("process", RECT_PROCESS);
+  SIZE_COMPARE("node", RECT_NODE);
+  SIZE_COMPARE("cluster", RECT_CLUSTER);
+  SIZE_COMPARE("local", RECT_LOCAL);
+  if (g_config_update_result == 0) {
+    printf("    SUMMARY: PASS\n");
+  } else {
+    printf("    SUMMARY: FAIL\n");
+  }
+
+}
+
+
+//-------------------------------------------------------------------------
+// main
+//-------------------------------------------------------------------------
+
+int
+main(int argc, char **argv)
+{
+  // start diags logging
+  FILE *log_fp;
+  if ((log_fp = fopen("reclocal.log", "a+")) != NULL) {
+    int status = setvbuf(log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(log_fp);
+      log_fp = NULL;
+    }
+  }
+  diags = new Diags("rec", NULL, log_fp);
+  diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  diags->print(NULL, DTA(DL_Note), "Starting '%s'", argv[0]);
+
+  // system initialization
+  RecLocalInit(diags);
+  RecLocalInitMessage();
+  RecordsConfigRegister();
+  RecLocalStart();
+
+  // test
+  Test01();                     // Local callbacks
+  Test02();                     // Local callbacks -- mulit-lock
+  Test03();                     // RecTree
+
+  while (true) {
+    RecDumpRecordsHt(RECT_NULL);
+    sleep(10);
+  }
+
+  return 0;
+
+}
diff --git a/lib/records/test_I_RecProcess.cc b/lib/records/test_I_RecProcess.cc
new file mode 100644
index 00000000..ca026df0
--- /dev/null
+++ b/lib/records/test_I_RecProcess.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_RecProcess.h"
+#include "test_RecProcess.i"
diff --git a/lib/records/test_P_RecProcess.cc b/lib/records/test_P_RecProcess.cc
new file mode 100644
index 00000000..b8d65dba
--- /dev/null
+++ b/lib/records/test_P_RecProcess.cc
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_RecProcess.h"
+#include "test_RecProcess.i"
diff --git a/lib/records/test_RecProcess.i b/lib/records/test_RecProcess.i
new file mode 100644
index 00000000..d56353a6
--- /dev/null
+++ b/lib/records/test_RecProcess.i
@@ -0,0 +1,670 @@
+/** @file
+
+  A small test and sample program for librecprocess.a
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_hrtime.h"
+#include "P_RecUtils.h"
+#include "test_RecordsConfig.h"
+
+Diags *diags = NULL;
+
+void RecDumpRecordsHt(RecT rec_type);
+
+//-------------------------------------------------------------------------
+// Test01: Parse Tests
+//
+// The following test just verifies that we can parse the
+// 'records.config' file format correctly (e.g can we handle weird
+// spacing, malformed lines, etc).  The test also verifies some of the
+// basic RecGetRecord functionality.
+//
+// Run this test with the 'test_records.config' config file.  Note
+// that the configs used by this test are registered in the
+// 'test_RecordsConfig.cc' file.
+//-------------------------------------------------------------------------
+
+#define PARSE_TEST_UNAVAILABLE(name, failures) \
+  do { \
+    RecString rec_string = 0; \
+    if (RecGetRecordString_Xmalloc("proxy.config.parse_"name, &rec_string) != REC_ERR_FAIL) { \
+      if (rec_string) xfree(rec_string); \
+      printf("  parse_"name": FAIL\n"); \
+      failures++; \
+    } else { \
+      printf("  parse_"name": PASS\n"); \
+    } \
+  } while (0);
+
+#define PARSE_TEST_COMPARE(name, value, failures) \
+  do { \
+    RecString rec_string = 0; \
+    if (RecGetRecordString_Xmalloc("proxy.config.parse_"name, &rec_string) == REC_ERR_OKAY) { \
+      if (strcmp(rec_string, value) == 0) { \
+	printf("  parse_"name": PASS\n"); \
+      } else { \
+	printf("  parse_"name": FAIL\n"); \
+	failures++; \
+      } \
+      xfree(rec_string); \
+    } else { \
+      printf("  parse_"name": FAIL\n"); \
+      failures++; \
+    } \
+  } while (0);
+
+void
+Test01()
+{
+  printf("[Test01: Parse Tests]\n");
+  int failures = 0;
+
+  // test 1 and 1b
+  PARSE_TEST_UNAVAILABLE("test_1a", failures);
+  PARSE_TEST_UNAVAILABLE("test_1b", failures);
+
+  // test 2, 2b, 3, 3b, 4, 4b
+  PARSE_TEST_COMPARE("test_2a", "X", failures);
+  PARSE_TEST_COMPARE("test_2b", "X", failures);
+  PARSE_TEST_COMPARE("test_3b", "XXX", failures);
+  PARSE_TEST_COMPARE("test_3b", "XXX", failures);
+  PARSE_TEST_COMPARE("test_4a", "XXX XXX XXX", failures);
+  PARSE_TEST_COMPARE("test_4b", "XXX XXX XXX", failures);
+
+  if (failures == 0) {
+    printf("  SUMMARY: PASS\n");
+  } else {
+    printf("  SUMMARY: FAIL\n");
+  }
+  return;
+}
+
+//-------------------------------------------------------------------------
+// Test02: Config Tests
+//
+// The following test stresses some additional config features
+// (e.g. registration of config update callbacks, config linking, and
+// config setting).  As with Test01, config registration must be done
+// in 'test_RecordsConfig.cc'.
+//-------------------------------------------------------------------------
+
+bool g_config_update_result = false;
+
+RecInt g_link_test_1 = 0;
+RecFloat g_link_test_2 = 0.0f;
+RecCounter g_link_test_3 = 0;
+
+int
+cb_test_1(const char *name, RecDataT data_type, RecData data, void *cookie)
+{
+  if ((cookie == (void *) 0x12345678) && (strcmp(data.rec_string, "cb_test_1__changed") == 0)) {
+    printf("    - cb_test_1 (name: %s, data: %s, cookie: 0x%x\n", name, data.rec_string, cookie);
+    g_config_update_result = true;
+  } else {
+    g_config_update_result = false;
+  }
+  return REC_ERR_OKAY;
+}
+
+int
+cb_test_2(const char */* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+          RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  g_config_update_result = false;
+  return REC_ERR_FAIL;
+}
+
+void
+Test02()
+{
+  printf("[Test02: Config Tests]\n");
+  int failures = 0;
+
+  printf("  [RecRegisterConfigUpdateCb]\n");
+
+  // Initialize variables
+  RecSetRecordString("proxy.config.cb_test_1", "cb_test_1__original");
+  RecSetRecordString("proxy.config.cb_test_2", "cb_test_2__original");
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  ink_sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Register config update callbacks
+  RecRegisterConfigUpdateCb("proxy.config.cb_test_1", cb_test_1, (void *) 0x12345678);
+  RecRegisterConfigUpdateCb("proxy.config.cb_test_2", cb_test_2, (void *) 0x87654321);
+
+  // Change proxy.config.cb_test_1
+  RecSetRecordString("proxy.config.cb_test_1", "cb_test_1__changed");
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  ink_sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Check globals to make sure the right thing happened
+  if (g_config_update_result == true) {
+    printf("    SUMMARY: PASS\n");
+  } else {
+    printf("    SUMMARY: FAIL\n");
+  }
+
+  printf("  [RecLinkConfigXXX]\n");
+
+  // Set configs
+  RecSetRecordInt("proxy.config.link_test_1", 1);
+  RecSetRecordFloat("proxy.config.link_test_2", 100.0f);
+  RecSetRecordCounter("proxy.config.link_test_3", 5);
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  ink_sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  // Link configs
+  RecLinkConfigInt("proxy.config.link_test_1", &g_link_test_1);
+  RecLinkConfigFloat("proxy.config.link_test_2", &g_link_test_2);
+  RecLinkConfigCounter("proxy.config.link_test_3", &g_link_test_3);
+
+  // Initial check to make sure link worked
+  printf("    - g_link_test_1 = %d:%d, expect: 1\n", g_link_test_1);
+  printf("    - g_link_test_2 = %f, expect: %f\n", g_link_test_2, 100.0f);
+  printf("    - g_link_test_3 = %d:%d, expect: 5\n", g_link_test_3);
+  if (g_link_test_1 == 1 && g_link_test_2 == 100.0f && g_link_test_3 == 5) {
+    printf("    SUMMARY: PASS\n");
+  } else {
+    printf("    SUMMARY: FAIL\n");
+  }
+
+  printf("  [RecGetRecordXXX]\n");
+  failures = 0;
+  RecString rec_string = 0;
+  const int buf_len = 1024;
+  char buf[buf_len];
+
+  RecGetRecordString_Xmalloc("proxy.config.cb_test_2", &rec_string);
+  if (!rec_string || (rec_string && strcmp(rec_string, "cb_test_2__original")) != 0) {
+    printf("    RecGetRecordString_Xmalloc: FAIL (expected: 'cb_test_2__original', got: '%s')\n",
+           rec_string ? rec_string : "<nothing>");
+  } else {
+    printf("    RecGetRecordString_Xmalloc: PASS (%s)\n", rec_string);
+  }
+
+  RecGetRecordString("proxy.config.cb_test_2", buf, buf_len);
+  if (strcmp(buf, "cb_test_2__original") != 0) {
+    printf("    RecGetRecordString:         FAIL (expected: 'cb_test_2__original', got: '%s')\n", buf);
+  } else {
+    printf("    RecGetRecordString:         PASS (%s)\n", buf);
+  }
+
+  // Testing with RecGetRecordInt, RecGetRecordFloat and RecGetRecordCounter
+  RecInt rec_int = 0;
+  RecGetRecordInt("proxy.config.link_test_1", &rec_int);
+  if (rec_int != 1) {
+    printf("    RecGetRecordInt:            FAIL (expected: 1, got %d:%d)\n", rec_int);
+  } else {
+    printf("    RecGetRecordInt:            PASS (%d:%d)\n", rec_int);
+  }
+
+  RecFloat rec_float = 0;
+  RecGetRecordFloat("proxy.config.link_test_2", &rec_float);
+  if (rec_float != 100.0f) {
+    printf("    RecGetRecordFloat:          FAIL (expected: %f, got %f)\n", 100.0f, rec_float);
+  } else {
+    printf("    RecGetRecordFloat:          PASS (%f)\n", rec_float);
+  }
+
+  RecCounter rec_counter = 0;
+  RecGetRecordCounter("proxy.config.link_test_3", &rec_counter);
+  if (rec_counter != 5) {
+    printf("    RecGetRecordCounter:        FAIL (expected: 5, got %d:%d)\n", rec_counter);
+  } else {
+    printf("    RecGetRecordCounter:        PASS (%d:%d)\n", rec_counter);
+  }
+
+  // Testing RecLinkConfigXXX, after calling RecLinkConfigXXX above, those
+  // variable will automatically be atomically updated when record changes in 
+  // librecords.
+  printf("  [RecLinkConfigXXX]\n");
+
+  // Set the records
+  printf("    - RecSetRecordXXX\n");
+  RecSetRecordString("proxy.config.cb_test_1", "cb_test_1_changed");
+  RecSetRecordInt("proxy.config.link_test_1", 2);
+  RecSetRecordFloat("proxy.config.link_test_2", 200.0f);
+  RecSetRecordCounter("proxy.config.link_test_3", 6);
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  ink_sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+  printf("    - g_link_test_1 = %d:%d, expect: 2\n", g_link_test_1);
+  printf("    - g_link_test_2 = %f, expect: %f\n", g_link_test_2, 200.0f);
+  printf("    - g_link_test_3 = %d:%d, expect: 6\n", g_link_test_3);
+  if (g_link_test_1 == 2 && g_link_test_2 == 200.0f && g_link_test_3 == 6) {
+    printf("    SUMMARY: PASS\n");
+  } else {
+    printf("    SUMMARY: FAIL\n");
+  }
+
+  RecSetRecordInt("proxy.config.link_test_1", 1);
+  RecSetRecordFloat("proxy.config.link_test_2", 100.0f);
+  RecSetRecordCounter("proxy.config.link_test_3", 5);
+  printf("    - sleep(2*REC_CONFIG_UPDATE_INTERVAL_SEC)\n");
+  ink_sleep(2 * REC_CONFIG_UPDATE_INTERVAL_SEC);
+
+}
+
+//-------------------------------------------------------------------------
+// Test03: RawStat Tests
+//
+// The following test illustrates how one might use the RawStat
+// interface to librecprocess.a.  It also illustrates a custom RawStat
+// sync function, 'raw_stat_sync_ticks_per_sec' that computes
+// operations per second (used by AIO module).
+//-------------------------------------------------------------------------
+
+enum my_stat_enum
+{
+  MY_STAT_A,
+  MY_STAT_B,
+  MY_STAT_C,
+  MY_STAT_D,
+  MY_STAT_E,
+  MY_STAT_F,
+  MY_STAT_G,
+  MY_STAT_COUNT
+};
+
+static RecRawStatBlock *g_rsb = NULL;
+static int g_count = 0;
+
+static int g_ticks = 0;
+static int g_time = 0;
+
+int
+raw_stat_sync_ticks_per_sec(const char *name, RecDataT data_type, RecData * data, RecRawStatBlock * rsb, int id)
+{
+  ink64 ticks_old, time_old;
+  ink64 ticks_new, time_new;
+
+  RecRawStat *rrs = RecGetGlobalRawStatPtr(rsb, id);
+  ink64 *rrs_sum = RecGetGlobalRawStatSumPtr(rsb, id);
+  ink64 *rrs_count = RecGetGlobalRawStatCountPtr(rsb, id);
+
+  RecGetGlobalRawStatSum(rsb, id, &ticks_old);
+  RecGetGlobalRawStatCount(rsb, id, &time_old);
+
+  if ((rrs->sum != ticks_old) && (*rrs_sum != ticks_old)) {
+    printf("ERROR: (rrs->sum != ticks_old) && (*rrs_sum != ticks_old)\n");
+  }
+  /*else {
+     printf("OKAY: GlobalRawStatSum == RecRawStat->sum == && GlobalRawStatSum == GlobalRawStatSumPtr, which is %d:%d\n", ticks_old);
+     } */
+  if ((rrs->count != time_old) && (*rrs_count != time_old)) {
+    printf("ERROR: (rrs->count != time_old) && (*rrs_sum != ticks_old)\n");
+  }
+  /*else {
+     printf("OKAY: GlobalRawStatCount == RecRawStat->count && GlobalRawStatCount == GlobalRawStatCountPtr, which is %d:%d\n", time_old);
+     } */
+  ticks_new = g_ticks;
+  time_new = g_time;
+
+  data->rec_float = (float) (ticks_new - ticks_old) / (float) (time_new - time_old);
+
+  RecSetGlobalRawStatSum(rsb, id, ticks_new);
+  RecSetGlobalRawStatCount(rsb, id, time_new);
+
+  return REC_ERR_OKAY;
+
+}
+
+struct RawStatCont:public Continuation
+{
+  RawStatCont(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER(&RawStatCont::dummy_function);
+  }
+  int dummy_function(int event, Event * e)
+  {
+    printf("------------Raw Stat dump-------------\n");
+    ink64 hr_start, hr_finish;
+    // comments out here. Why stat_a is int?
+    RecInt stat_b, stat_c, stat_f, stat_g;
+    RecFloat stat_a, stat_d, stat_e;
+    // comments out here
+
+    hr_start = ink_get_hrtime();
+
+    // test_raw_stat_a should have around 16000 in it (avg of rand())
+    RecIncrRawStat(g_rsb, mutex->thread_holding, (int) MY_STAT_A, rand());
+
+    // test_raw_stat_b should have g_count plustorial in it
+    RecIncrRawStatSum(g_rsb, mutex->thread_holding, (int) MY_STAT_B, g_count);
+
+    // test_raw_stat_c should have g_count plustorial in it
+    //RecSetRawStatCount(g_rsb, (int) MY_STAT_C, g_count);
+    RecIncrRawStatCount(g_rsb, mutex->thread_holding, (int) MY_STAT_C, g_count);
+
+    // test_raw_stat_f should have g_count in it
+    // I have switched this with test_raw_stat_c
+    RecSetRawStatCount(g_rsb, (int) MY_STAT_F, g_count);
+
+    // test_raw_stat_g should have g_count in it
+    RecSetRawStatSum(g_rsb, (int) MY_STAT_G, g_count);
+
+    // test_raw_stat_d should have 4 it (e.g. we're run 4 times a second)
+    ink_atomic_increment(&g_ticks, 1);
+    g_time = time(0);
+
+    // sleep for a bit to take some time
+    struct timespec rgtp;
+    rgtp.tv_sec = 0;
+    rgtp.tv_nsec = 10000;
+    nanosleep(&rgtp, NULL);
+
+    // FIXME: Read values and compare against expected values rather
+    // than just printing out
+
+    // comments out here
+    RecGetRecordFloat("proxy.process.test_raw_stat_a", &stat_a);
+    RecGetRecordInt("proxy.process.test_raw_stat_b", &stat_b);
+    RecGetRecordInt("proxy.process.test_raw_stat_c", &stat_c);
+    RecGetRecordFloat("proxy.process.test_raw_stat_d", &stat_d);
+    RecGetRecordFloat("proxy.process.test_raw_stat_e", &stat_e);
+    RecGetRecordInt("proxy.process.test_raw_stat_f", &stat_f);
+    RecGetRecordInt("proxy.process.test_raw_stat_g", &stat_g);
+
+    /*
+       printf("-> g_count: %d, thr: 0x%x, stat_a: %d%d, stat_b: %d:%d, stat_c: %d:%d, stat_d: %f\n",
+       g_count, mutex->thread_holding, stat_a, stat_b, stat_c, stat_d);
+
+       printf("-> g_link_test_1: %d:%d, g_link_test_2: %f\n",
+       g_link_test_1, g_link_test_2);
+     */
+
+    // Compare read value stat_a and expected value test_raw_stat_a
+    RecRawStat test_raw_stat_a;
+    RecFloat avg = 0.0f;
+    test_raw_stat_a.sum = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_A]->sum));
+    test_raw_stat_a.count = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_A]->count));
+    if (test_raw_stat_a.count != 0)
+      avg = (float) ((double) test_raw_stat_a.sum / (double) test_raw_stat_a.count);
+
+    if (stat_a != avg) {
+      printf("ERROR: stat_a: %f, expect stat_a: %f\n", stat_a, avg);
+    } else {
+      printf("OKAY: stat_a: %f, expect stat_a: %f\n", stat_a, avg);
+    }
+
+    // Compare read value stat_b and expected value test_raw_stat_b
+    RecRawStat test_raw_stat_b;
+    test_raw_stat_b.sum = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_B]->sum));
+    if (stat_b != test_raw_stat_b.sum) {
+      printf("ERROR: After RecIncrRawStatSum, stat_b: %d:%d, expect stat_b: %d:%d\n", stat_b, test_raw_stat_b.sum);
+    } else {
+      printf("OKAY: After RecIncrRawStatSum, stat_b: %d:%d, expect stat_b: %d:%d\n", stat_b, test_raw_stat_b.sum);
+    }
+
+    // Compare read value stat_c and expected value test_raw_stat_c
+    RecRawStat test_raw_stat_c;
+    test_raw_stat_c.count = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_C]->count));
+    if (stat_c != test_raw_stat_c.count) {
+      printf("ERROR: After RecIncrRawStatCount, stat_c: %d:%d, expect stat_c: %d:%d\n", stat_c, test_raw_stat_c.count);
+    } else {
+      printf("OKAY: After RecIncrRawStatCount, stat_c: %d:%d, expect stat_c: %d:%d\n", stat_c, test_raw_stat_c.count);
+    }
+
+    // Compare read value stat_d and expected value test_raw_stat_d
+    ink64 ticks_old, time_old;
+    RecGetGlobalRawStatSum(g_rsb, MY_STAT_D, &ticks_old);
+    RecGetGlobalRawStatCount(g_rsb, MY_STAT_D, &time_old);
+    RecFloat data = (float) (g_ticks - ticks_old) / (float) (g_time - time_old);
+    if (stat_d != 4.0f) {
+      printf("ERROR: stat_d: %f, expect stat_d: %f or I got data: %f\n", stat_d, 4.0f, data);
+    } else {
+      printf("OKAY: stat_d: %f, expect stat_d: %f or I got data: %f\n", stat_d, 4.0f, data);
+    }
+
+    // Compare read value stat_e and expected value test_raw_stat_e
+    RecRawStat test_raw_stat_e;
+    RecFloat r;
+    test_raw_stat_e.sum = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_E]->sum));
+    test_raw_stat_e.count = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_E]->count));
+    if (test_raw_stat_e.count == 0) {
+      r = 0.0f;
+    } else {
+      r = (float) ((double) test_raw_stat_e.sum / (double) test_raw_stat_e.count);
+      r = r / (float) (HRTIME_SECOND);
+    }
+    if (stat_e != r) {
+      printf("ERROR: stat_e: %f, expect stat_e from avg: %f\n", stat_e, r);
+    } else {
+      printf("OKAY: stat_e: %f, expect stat_e from avg: %f\n", stat_e, r);
+    }
+
+    // Compare read value stat_f and expected value test_raw_stat_f
+    // Since RecSet only set g_rsb->global[MY_STAT_F]->count to be g_count value. 
+    // It will not set data.rec_int for stat_f until the RecExecRawStatSyncCbs 
+    // is called. RecExecRawStatSyncCbs callback RecRawStatSyncCount which set
+    // data.rec_int to be g_rsb->global[MY_STAT_F]->count. The schedule for
+    // RecExecRawStatSyncCbs is REC_RAW_STAT_SYNC_INTERVAL_SEC = 3 secs.
+    // The normal for this dummy_function is 1 sec. There is no way we can
+    // get the right value for this. Let ask Eric for this :)
+    // I have increase the ink_sleep time (about 3 secs) between RecSet and RecGet 
+    // for stat_c hoping that we got the RecExecRawStatSyncCbs at the middle of them
+    // so we can get the right value for stat_c. However, this will screw up 
+    // stat_d badly as we get NaN for stat_d.
+    RecRawStat test_raw_stat_f;
+    test_raw_stat_f.count = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_F]->count));
+    RecInt check_stat_f;
+    RecGetRawStatCount(g_rsb, (int) MY_STAT_F, &check_stat_f);
+    if (stat_f != test_raw_stat_f.count || stat_f != check_stat_f) {
+      printf("ERROR: After RecSetRawStatCount, stat_f: %d:%d, stat_f by REC_ATOMIC_READ64: %d:%d\n", stat_f,
+             test_raw_stat_f.count);
+      printf("       stat_f by RecGetRawStatCount: %d:%d\n", check_stat_f);
+    } else {
+      printf("OKAY: After RecSetRawStatCount, stat_f: %d:%d, stat_f by REC_ATOMIC_READ64: %d:%d\n", stat_f,
+             test_raw_stat_f.count);
+      printf("      stat_f by RecGetRawStatCount: %d:%d\n", check_stat_f);
+    }
+
+    // Compare read value stat_g and expeced value test_raw_stat_g
+    RecRawStat test_raw_stat_g;
+    test_raw_stat_g.sum = REC_ATOMIC_READ64(&(g_rsb->global[MY_STAT_G]->sum));
+    RecInt check_stat_g;
+    RecGetRawStatSum(g_rsb, (int) MY_STAT_G, &check_stat_g);
+    if (stat_g != test_raw_stat_g.count || stat_g != check_stat_g) {
+      printf("ERROR: After RecSetRawStatSum, stat_g: %d:%d, stat_g by REC_ATOMIC_READ64: %d:%d\n", stat_g,
+             test_raw_stat_g.sum);
+      printf("       stat_g by RecGetRawStatSum: %d:%d\n", check_stat_g);
+    } else {
+      printf("OKAY: After RecSetRawStatSum, stat_g: %d:%d, stat_g by REC_ATOMIC_READ64: %d:%d\n", stat_g,
+             test_raw_stat_g.sum);
+      printf("      stat_g by RecGetRawStatSum: %d:%d\n", check_stat_g);
+    }
+    ink_atomic_increment(&g_count, 1);
+
+    // test_raw_stat_e should have the time it takes to run this function
+    hr_finish = ink_get_hrtime();
+    RecIncrRawStat(g_rsb, mutex->thread_holding, (int) MY_STAT_E, hr_finish - hr_start);
+
+    return 0;
+  }
+};
+
+void
+Test03()
+{
+  printf("[Test03: RawStat Test]\n");
+
+  // Register raw statistics 
+  g_rsb = RecAllocateRawStatBlock((int) MY_STAT_COUNT);
+
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_a",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) MY_STAT_A, RecRawStatSyncAvg);
+
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_b",
+                     RECD_INT, RECP_PERSISTENT, (int) MY_STAT_B, RecRawStatSyncSum);
+
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_c",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) MY_STAT_C, RecRawStatSyncCount);
+
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_d",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) MY_STAT_D, raw_stat_sync_ticks_per_sec);
+
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_e",
+                     RECD_FLOAT, RECP_NON_PERSISTENT, (int) MY_STAT_E, RecRawStatSyncHrTimeAvg);
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_f",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) MY_STAT_F, RecRawStatSyncCount);
+  // If forget to Register this RawStat, we will have SEGV when checking 
+  // g_rsb->global[MY_STAT_G]
+  RecRegisterRawStat(g_rsb, RECT_PROCESS, "proxy.process.test_raw_stat_g",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) MY_STAT_G, RecRawStatSyncSum);
+
+  // Schedule a bunch of continuations that will use the stats registered above
+  RawStatCont *sc = new RawStatCont(new_ProxyMutex());
+  eventProcessor.schedule_every(sc, HRTIME_SECONDS(1), ET_CALL, EVENT_INTERVAL, NULL);
+  eventProcessor.schedule_every(sc, HRTIME_SECONDS(1), ET_CALL, EVENT_INTERVAL, NULL);
+  eventProcessor.schedule_every(sc, HRTIME_SECONDS(1), ET_CALL, EVENT_INTERVAL, NULL);
+  eventProcessor.schedule_every(sc, HRTIME_SECONDS(1), ET_CALL, EVENT_INTERVAL, NULL);
+
+}
+
+//-------------------------------------------------------------------------
+// DumpRecordHtCont
+//-------------------------------------------------------------------------
+
+struct DumpRecordsHtCont:public Continuation
+{
+  DumpRecordsHtCont(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER(&DumpRecordsHtCont::dummy_function);
+  }
+  int dummy_function(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    RecDumpRecordsHt(RECT_NULL);
+    return 0;
+  }
+};
+
+//-------------------------------------------------------------------------
+// TreeTest01: 
+//
+//-------------------------------------------------------------------------
+
+void
+TreeTest01()
+{
+  char **var_buf = NULL;
+  int buf_len = 0;
+  RecGetRecordList("proxy.config", &var_buf, &buf_len);
+  for (int i = 0; i < buf_len; i++) {
+    ink_assert(var_buf[i]);
+    diags->print(NULL, DL_Note, NULL, NULL, "\tRecTree node: (proxy.config.*) %s", var_buf[i]);
+  }
+  delete[]var_buf;
+  printf("\n");
+  if (buf_len == 12) {
+    diags->print(NULL, DL_Note, NULL, NULL, "\tRecTree Test -- PASS\n");
+  } else {
+    diags->print(NULL, DL_Note, NULL, NULL, "\tRecTree Test -- FAIL\n");
+  }
+  printf("\n");
+}
+
+
+//-------------------------------------------------------------------------
+// TreeTest02: 
+//
+// This should only run after Test03.
+// Determine whether proxy.process.* variable are referred by the RecTree
+// properly.
+//-------------------------------------------------------------------------
+
+void
+TreeTest02()
+{
+  char **var_buf = NULL;
+  int buf_len = 0;
+  RecGetRecordList("proxy.process", &var_buf, &buf_len);
+  for (int i = 0; i < buf_len; i++) {
+    ink_assert(var_buf[i]);
+    diags->print(NULL, DL_Note, NULL, NULL, "\tRecTree (proxy.process.*) node: %s", var_buf[i]);
+  }
+  delete[]var_buf;
+  printf("\n");
+  if (buf_len == 7) {
+    diags->print(NULL, DL_Note, NULL, NULL, "\tRecTree Test -- PASS\n");
+  } else {
+    diags->print(NULL, DL_Note, NULL, NULL, "\tRecTree Test -- FAIL\n");
+  }
+  printf("\n");
+}
+
+//-------------------------------------------------------------------------
+// main
+//-------------------------------------------------------------------------
+
+int
+main(int argc, char **argv)
+{
+
+  RecModeT mode_type = RECM_STAND_ALONE;
+  if ((argc == 2) && (strcmp(argv[1], "-M") == 0)) {
+    mode_type = RECM_CLIENT;
+  }
+  // Start diags logging
+  FILE *log_fp;
+  if ((log_fp = fopen("recprocess.log", "a+")) != NULL) {
+    int status = setvbuf(log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(log_fp);
+      log_fp = NULL;
+    }
+  }
+  diags = new Diags("rec", NULL, log_fp);
+  diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+  diags->print(NULL, DL_Note, NULL, NULL, "Starting '%s'", argv[0]);
+
+  // System initialization.  Note that a pointer to the diags object
+  // is passed into librecprocess.a.  If manager isn't running, we
+  // need to register our own configs
+  RecProcessInit(mode_type, diags);
+  RecProcessInitMessage(mode_type);
+  if (mode_type == RECM_STAND_ALONE) {
+    RecordsConfigRegister();
+  }
+  ink_event_system_init(EVENT_SYSTEM_MODULE_VERSION);
+  eventProcessor.start(4);
+  RecProcessStart();
+
+  RecSignalManager(1, "This is a signal, signaled by RecSignalManager");
+
+  // See if we're sync'd okay
+  RecDumpRecordsHt(RECT_NULL);
+
+
+  // Run tests
+  TreeTest01();
+  Test01();
+  Test02();
+  Test03();
+  TreeTest02();
+
+
+  // Schedule dump continuation so that we can see what's going on
+  DumpRecordsHtCont *drhc = new DumpRecordsHtCont(new_ProxyMutex());
+  eventProcessor.schedule_every(drhc, HRTIME_SECONDS(10), ET_CALL, EVENT_INTERVAL, NULL);
+
+  this_thread()->execute();
+  return 0;
+}
diff --git a/lib/records/test_RecTree.cc b/lib/records/test_RecTree.cc
new file mode 100644
index 00000000..64d99a28
--- /dev/null
+++ b/lib/records/test_RecTree.cc
@@ -0,0 +1,78 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_RecTree.h"
+#include "stdio.h"
+
+int
+main(int argc, char **argv)
+{
+  RecTree *new_rec_tree = new RecTree(NULL);
+
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.first_child");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.first_child.grandchild1");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.first_child.grandchild2");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.first_child.grandchild2.grandgrandchild1");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.first_child.grandchild2.grandgrandchild2");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.first_child.grandchild3");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.second_child");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.second_child.grandchild1");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.1");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.process.librecords.2");
+  printf("\n");
+  new_rec_tree->rec_tree_insert("proxy.node.http.hitrate");
+  printf("\n");
+  new_rec_tree->print();
+
+  /* Test getting subtree */
+  printf("\nTest getting subtree(1)\n");
+  printf("----------------------------------------------------------------\n");
+  RecTree *sub_tree = new_rec_tree->rec_tree_get("proxy.process.librecords");
+  sub_tree->print();
+
+  printf("\nTest getting subtree(2)\n");
+  printf("----------------------------------------------------------------\n");
+  sub_tree = new_rec_tree->rec_tree_get("proxy.process.*");
+  sub_tree->print();
+
+  /* Test getting a list of variables */
+  printf("\nTest getting variables list\n");
+  printf("----------------------------------------------------------------\n");
+  int count = 0;
+  char **variable_list;
+  new_rec_tree->rec_tree_get_list("proxy.process", &variable_list, &count);
+  for (int i = 0; i < count; i++) {
+    printf("[RecTreeTest] %s\n", variable_list[i]);
+  }
+
+  printf("\n -- Fin --\n");
+}
diff --git a/lib/records/test_RecordsConfig.cc b/lib/records/test_RecordsConfig.cc
new file mode 100644
index 00000000..e62e4a8a
--- /dev/null
+++ b/lib/records/test_RecordsConfig.cc
@@ -0,0 +1,60 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "I_RecCore.h"
+
+//-------------------------------------------------------------------------
+// RecordsConfigRegister
+//-------------------------------------------------------------------------
+
+void
+RecordsConfigRegister()
+{
+
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.parse_test_2a", NULL, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.parse_test_2b", NULL, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.parse_test_3a", NULL, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.parse_test_3b", NULL, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.parse_test_4a", NULL, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.parse_test_4b", NULL, RECU_DYNAMIC, RECC_NULL, NULL);
+
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.cb_test_1", "cb_test_1__original", RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.cb_test_2", "cb_test_2__original", RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.local.cb_test_1", "cb_test_1__original", RECU_DYNAMIC, RECC_NULL,
+                          NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.local.cb_test_2", "cb_test_2__original", RECU_DYNAMIC, RECC_NULL,
+                          NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.local.cb_test_3", "cb_test_3__original", RECU_DYNAMIC, RECC_NULL,
+                          NULL);
+  RecRegisterConfigInt(RECT_CONFIG, "proxy.config.link_test_1", 0, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigFloat(RECT_CONFIG, "proxy.config.link_test_2", 0.0f, RECU_DYNAMIC, RECC_NULL, NULL);
+  RecRegisterConfigCounter(RECT_CONFIG, "proxy.config.link_test_3", 0, RECU_DYNAMIC, RECC_NULL, NULL);
+
+  // NODE
+  RecRegisterStatString(RECT_NODE, "proxy.node.cb_test_1", "cb_test_1__original", RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_NODE, "proxy.node.cb_test_2", "cb_test_2__original", RECP_NON_PERSISTENT);
+  RecRegisterStatInt(RECT_NODE, "proxy.node.cb_test_int", 0, RECP_NON_PERSISTENT);
+  RecRegisterStatFloat(RECT_NODE, "proxy.node.cb_test_float", 0.0f, RECP_NON_PERSISTENT);
+  RecRegisterStatCounter(RECT_NODE, "proxy.node.cb_test_count", 0, RECP_NON_PERSISTENT);
+
+}
diff --git a/lib/records/test_RecordsConfig.h b/lib/records/test_RecordsConfig.h
new file mode 100644
index 00000000..df1884bd
--- /dev/null
+++ b/lib/records/test_RecordsConfig.h
@@ -0,0 +1,28 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _TEST_RECORDS_CONFIG_H_
+
+void RecordsConfigRegister();
+
+#endif
diff --git a/lib/records/test_records.config b/lib/records/test_records.config
new file mode 100644
index 00000000..be9df8ed
--- /dev/null
+++ b/lib/records/test_records.config
@@ -0,0 +1,20 @@
+###########################################################################
+# Test records.config
+###########################################################################
+# parse tests
+ CONFIG  proxy.config.parse_test_0a  STRING
+CONFIG proxy.config.parse_test_1a STRING
+CONFIG proxy.config.parse_test_1b STRING   
+CONFIG proxy.config.parse_test_2a	STRING X
+CONFIG proxy.config.parse_test_2b  STRING X   
+CONFIG	 proxy.config.parse_test_3a STRING XXX
+CONFIG proxy.config.parse_test_3b STRING XXX   
+  CONFIG proxy.config.parse_test_4a STRING XXX XXX XXX
+CONFIG proxy.config.parse_test_4b STRING XXX XXX XXX	 
+##########################################################################
+# User Overridden Configs Below
+##########################################################################
+CONFIG proxy.config.cb_test_1 STRING cb_test_1__original
+CONFIG proxy.config.link_test_1 INT 1
+CONFIG proxy.config.link_test_2 FLOAT 100.000000
+CONFIG proxy.config.link_test_3 COUNTER 5
diff --git a/lib/ts/Allocator.h b/lib/ts/Allocator.h
new file mode 100644
index 00000000..86fcf230
--- /dev/null
+++ b/lib/ts/Allocator.h
@@ -0,0 +1,224 @@
+/** @file
+
+  Fast-Allocators
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  Provides three classes
+    - Allocator for allocating memory blocks of fixed size
+    - ClassAllocator for allocating objects
+    - SpaceClassAllocator for allocating sparce objects (most members uninitialized)
+
+  These class provides a efficient way for handling dynamic allocation.
+  The fast allocator maintains its own freepool of objects from
+  which it doles out object. Allocated objects when freed go back
+  to the free pool.
+
+  @note Fast allocators could accumulate a lot of objects in the
+  free pool as a result of bursty demand. Memory used by the objects
+  in the free pool never gets freed even if the freelist grows very
+  large.
+
+ */
+
+#ifndef _Allocator_h_
+#define _Allocator_h_
+
+#include <stdlib.h>
+#include "ink_queue.h"
+#include "ink_defs.h"
+#include "ink_resource.h"
+
+#define RND16(_x)               (((_x)+15)&~15)
+
+/** Allocator for fixed size memory blocks. */
+class Allocator
+{
+public:
+  /**
+    Allocate a block of memory (size specified during construction
+    of Allocator.
+  */
+  void *
+  alloc_void()
+  {
+    return ink_freelist_new(this->fl);
+  }
+
+  /** Deallocate a block of memory allocated by the Allocator. */
+  void
+  free_void(void *ptr)
+  {
+    ink_freelist_free(this->fl, ptr);
+  }
+
+  Allocator()
+  {
+    fl = NULL;
+  }
+
+  /**
+    Creates a new allocator.
+
+    @param name identification tag used for mem tracking .
+    @param element_size size of memory blocks to be allocated.
+    @param chunk_size number of units to be allocated if free pool is empty.
+    @param alignment of objects must be a power of 2.
+  */
+  Allocator(const char *name, unsigned int element_size,
+            unsigned int chunk_size = 128, unsigned int alignment = 8)
+  {
+    ink_freelist_init(&fl, name, element_size, chunk_size, alignment);
+  }
+
+  /** Re-initialize the parameters of the allocator. */
+  void
+  re_init(const char *name, unsigned int element_size,
+          unsigned int chunk_size, unsigned int alignment)
+  {
+    ink_freelist_init(&this->fl, name, element_size, chunk_size, alignment);
+  }
+
+protected:
+  InkFreeList *fl;
+};
+
+/**
+  Allocator for Class objects. It uses a prototype object to do
+  fast initialization. Prototype of the template class is created
+  when the fast allocator is created. This is instantiated with
+  default (no argument) constructor. Constructor is not called for
+  the allocated objects. Instead, the prototype is just memory
+  copied onto the new objects. This is done for performance reasons.
+
+*/
+template<class C> class ClassAllocator: public Allocator {
+public:
+  /** Allocates objects of the templated type. */
+  C*
+  alloc()
+  {
+    void *ptr = ink_freelist_new(this->fl);
+
+    memcpy(ptr, (void *)&this->proto.typeObject, sizeof(C));
+    return (C *) ptr;
+  }
+
+  /**
+    Deallocates objects of the templated type.
+
+    @param ptr pointer to be freed.
+  */
+  void
+  free(C * ptr)
+  {
+    ink_freelist_free(this->fl, ptr);
+  }
+
+  /**
+    Allocate objects of the templated type via the inherited interface
+    using void pointers.
+  */
+  void*
+  alloc_void()
+  {
+    return (void *) alloc();
+  }
+
+  /**
+    Deallocate objects of the templated type via the inherited
+    interface using void pointers.
+
+    @param ptr pointer to be freed.
+  */
+  void
+  free_void(void *ptr)
+  {
+    free((C *) ptr);
+  }
+
+  /**
+    Create a new class specific ClassAllocator.
+
+    @param name some identifying name, used for mem tracking purposes.
+    @param chunk_size number of units to be allocated if free pool is empty.
+    @param alignment of objects must be a power of 2.
+  */
+  ClassAllocator(const char *name, unsigned int chunk_size = 128,
+                 unsigned int alignment = 16)
+  {
+    ink_freelist_init(&this->fl, name, RND16(sizeof(C)), chunk_size, RND16(alignment));
+  }
+
+  struct
+  {
+    C typeObject;
+    int64_t space_holder;
+  } proto;
+};
+
+/**
+  Allocator for space class, a class with a lot of uninitialized
+  space/members. It uses an instantiate fucntion do initialization
+  of objects. This is particulary useful if most of the space in
+  the objects does not need to be intialized. The inifunction passed
+  can be used to intialize a few fields selectively. Using
+  ClassAllocator for space objects would unnecessarily initialized
+  all of the members.
+
+*/
+template<class C> class SparseClassAllocator:public ClassAllocator<C> {
+public:
+
+  /** Allocates objects of the templated type. */
+  C*
+  alloc()
+  {
+    void *ptr = ink_freelist_new(this->fl);
+
+    if (!_instantiate) {
+      memcpy(ptr, (void *)&this->proto.typeObject, sizeof(C));
+    } else
+      (*_instantiate) ((C *) &this->proto.typeObject, (C *) ptr);
+    return (C *) ptr;
+  }
+
+
+  /**
+    Create a new class specific SparseClassAllocator.
+
+    @param name some identifying name, used for mem tracking purposes.
+    @param chunk_size number of units to be allocated if free pool is empty.
+    @param alignment of objects must be a power of 2.
+    @param instantiate_func
+
+  */
+  SparseClassAllocator(const char *name, unsigned int chunk_size = 128,
+                       unsigned int alignment = 16,
+                       void (*instantiate_func) (C * proto, C * instance) = NULL)
+    : ClassAllocator<C>(name, chunk_size, alignment)
+  {
+    _instantiate = instantiate_func;       // NULL by default
+  }
+
+private:
+  void (*_instantiate) (C* proto, C* instance);
+};
+
+#endif  // _Allocator_h_
diff --git a/lib/ts/Arena.cc b/lib/ts/Arena.cc
new file mode 100644
index 00000000..95e3cdda
--- /dev/null
+++ b/lib/ts/Arena.cc
@@ -0,0 +1,160 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include <assert.h>
+#include <string.h>
+
+
+#define DEFAULT_ALLOC_SIZE   1024
+#define DEFAULT_BLOCK_SIZE   (DEFAULT_ALLOC_SIZE - (sizeof (ArenaBlock) - 8))
+
+
+static Allocator defaultSizeArenaBlock("ArenaBlock", DEFAULT_ALLOC_SIZE);
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static inline ArenaBlock *
+blk_alloc(int size)
+{
+  ArenaBlock *blk;
+
+  if (size == DEFAULT_BLOCK_SIZE) {
+    blk = (ArenaBlock *) defaultSizeArenaBlock.alloc_void();
+  } else {
+    blk = (ArenaBlock *)ats_malloc(size + sizeof(ArenaBlock) - 8);
+  }
+
+  blk->next = NULL;
+  blk->m_heap_end = &blk->data[size];
+  blk->m_water_level = &blk->data[0];
+
+  return blk;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static inline void
+blk_free(ArenaBlock * blk)
+{
+  int size;
+
+  size = blk->m_heap_end - &blk->data[0];
+  if (size == DEFAULT_BLOCK_SIZE) {
+    defaultSizeArenaBlock.free_void(blk);
+  } else {
+    ats_free(blk);
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static void *
+block_alloc(ArenaBlock * block, size_t size, size_t alignment)
+{
+  char *mem;
+
+  mem = block->m_water_level;
+  if (((size_t) mem) & (alignment - 1)) {
+    mem += (alignment - ((size_t) mem)) & (alignment - 1);
+  }
+
+  if ((block->m_heap_end >= mem) && (((size_t) block->m_heap_end - (size_t) mem) >= size)) {
+    block->m_water_level = mem + size;
+    return mem;
+  }
+
+  return NULL;
+}
+
+void *
+Arena::alloc(size_t size, size_t alignment)
+{
+  ArenaBlock *b;
+  unsigned int block_size;
+  void *mem;
+
+  ink_assert((alignment & (alignment - 1)) == 0);
+
+  b = m_blocks;
+  while (b) {
+    mem = block_alloc(b, size, alignment);
+    if (mem) {
+      return mem;
+    }
+    b = b->next;
+  }
+
+  block_size = (unsigned int) (size * 1.5);
+  if (block_size < DEFAULT_BLOCK_SIZE) {
+    block_size = DEFAULT_BLOCK_SIZE;
+  }
+
+  b = blk_alloc(block_size);
+  b->next = m_blocks;
+  m_blocks = b;
+
+  mem = block_alloc(b, size, alignment);
+  return mem;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+Arena::free(void *mem, size_t size)
+{
+  if (m_blocks) {
+    ArenaBlock *b;
+
+    b = m_blocks;
+    while (b->next) {
+      b = b->next;
+    }
+
+    if (b->m_water_level == ((char *) mem + size)) {
+      b->m_water_level = (char *) mem;
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+Arena::reset()
+{
+  ArenaBlock *b;
+
+  while (m_blocks) {
+    b = m_blocks->next;
+    blk_free(m_blocks);
+    m_blocks = b;
+  }
+  ink_assert(m_blocks == NULL);
+}
diff --git a/lib/ts/Arena.h b/lib/ts/Arena.h
new file mode 100644
index 00000000..e3c26f5a
--- /dev/null
+++ b/lib/ts/Arena.h
@@ -0,0 +1,182 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __ARENA_H__
+#define __ARENA_H__
+
+
+#include <sys/types.h>
+#include <memory.h>
+#include "ink_assert.h"
+
+
+struct ArenaBlock
+{
+  ArenaBlock *next;
+  char *m_heap_end;
+  char *m_water_level;
+  char data[8];
+};
+
+
+class Arena
+{
+public:
+  Arena():m_blocks(NULL)
+  {
+  }
+   ~Arena()
+  {
+    reset();
+  }
+
+  inkcoreapi void *alloc(size_t size, size_t alignment = sizeof(double));
+  void free(void *mem, size_t size);
+  size_t str_length(const char *str);
+  char *str_alloc(size_t len);
+  void str_free(char *str);
+  char *str_store(const char *str, size_t len);
+
+  inkcoreapi void reset();
+
+private:
+  ArenaBlock * m_blocks;
+};
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline size_t
+Arena::str_length(const char *str)
+{
+  unsigned char *s, *e;
+  size_t len;
+
+  e = (unsigned char *) str;
+  s = e - 1;
+
+  while (*s >= 128) {
+    s -= 1;
+  }
+
+  len = *s++;
+  while (s != e) {
+    len = (len * 128) + (255 - *s++);
+  }
+
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  layout = [length][data]
+
+    length 1                   = [1]
+    length 127                 = [127]
+    length 128                 = [1][255]
+    length 128 + 1             = [1][254]
+    length 128 + 2             = [1][253]
+    length 128 + 127           = [1][128]
+    length 128 + 128           = [2][255]
+    length 128 * 128           = [1][255][255]
+    length 128 * 128 + 1       = [1][255][254]
+    length 128 * 128 + 2       = [1][255][253]
+    length 128 * 128 + 127     = [1][255][128]
+    length 128 * 128 + 128     = [1][254][255]
+  -------------------------------------------------------------------------*/
+
+inline char *
+Arena::str_alloc(size_t len)
+{
+  unsigned char *mem, *p;
+  size_t size;
+  size_t tmp;
+
+  size = len + 1 + 1;
+  tmp = len;
+
+  while (tmp >= 128) {
+    size += 1;
+    tmp /= 128;
+  }
+
+  mem = (unsigned char *) alloc(size, 1);
+
+  mem += (size - len - 1);
+  p = mem - 1;
+  tmp = len;
+
+  while (tmp >= 128) {
+    *p-- = (unsigned char) (255 - (tmp % 128));
+    tmp /= 128;
+  }
+  *p = (unsigned char) tmp;
+
+  return (char *) mem;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+Arena::str_free(char *str)
+{
+  unsigned char *p, *s, *e;
+  size_t len;
+
+  e = (unsigned char *) str;
+  s = e - 1;
+
+  while (*s >= 128) {
+    s -= 1;
+  }
+
+  p = s;
+
+  len = *s++;
+  while (s != e) {
+    len = (len * 128) + (255 - *s++);
+  }
+
+  len += (e - p) + 1;
+  free(p, len);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline char *
+Arena::str_store(const char *str, size_t len)
+{
+  char *mem;
+
+  mem = str_alloc(len);
+  memcpy(mem, str, len);
+  mem[len] = '\0';
+
+  return mem;
+}
+
+
+#endif /* __ARENA_H__ */
+
diff --git a/lib/ts/Bitops.cc b/lib/ts/Bitops.cc
new file mode 100644
index 00000000..44a99425
--- /dev/null
+++ b/lib/ts/Bitops.cc
@@ -0,0 +1,63 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Bitops.h"
+
+
+unsigned char bit_table[256] = {
+  0, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  7, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  8, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  7, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+  5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1,
+};
+
+unsigned char bit_count_table[256] = {
+  0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
+  1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
+  1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
+  1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
+  2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
+  1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
+  2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
+  2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
+  2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
+  3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
+  3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
+  4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8,
+};
diff --git a/lib/ts/Bitops.h b/lib/ts/Bitops.h
new file mode 100644
index 00000000..76ed1f0d
--- /dev/null
+++ b/lib/ts/Bitops.h
@@ -0,0 +1,275 @@
+/** @file
+
+  Utility functions for efficient bit operations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __BITOPS_H__
+#define __BITOPS_H__
+#include "libts.h"
+
+/**
+  Find First (bit) Set. Index starts at 1.
+
+  @return zero for zero arg.
+
+*/
+static inline int
+ink_ffs(int n)
+{
+  return ffs(n);
+}
+
+/**
+  Returns the index of the first bit (least significant bit), set "1"
+  for each char in the range (start end).
+
+  @param start pointer to the first character.
+  @param end pointer to the location after the last character.
+  @param p (if not null) returns the location of the first char that
+    has a bit set.
+  @return index of the first bit set in the first character that has a
+    bit turned on. Zero if all bits are zero.
+
+*/
+static inline int
+bitops_first_set(unsigned char *start, unsigned char *end, unsigned char **p)
+{
+  extern unsigned char bit_table[];
+
+  int idx;
+
+  idx = 0;
+  while (start != end) {
+    idx = bit_table[*start];
+    if (idx) {
+      break;
+    }
+    start += 1;
+  }
+
+  if (p) {
+    *p = start;
+  }
+
+  return idx;
+}
+
+/**
+  Returns the index of the first bit (least significant bit), unset "0"
+  for each char in the range (start end).
+
+  @param start pointer to the first character.
+  @param end pointer to the location after the last character.
+  @param p (if not null) returns the location of the first char that
+    has a bit unset.
+  @return index of the first bit set in the first character that has a
+    bit turned off. Zero if all bits are 1.
+
+*/
+static inline int
+bitops_first_unset(unsigned char *start, unsigned char *end, unsigned char **p)
+{
+  extern unsigned char bit_table[];
+
+  int idx;
+
+  idx = 0;
+  while (start != end) {
+    idx = bit_table[~(*start)];
+    if (idx) {
+      break;
+    }
+    start += 1;
+  }
+
+  if (p) {
+    *p = start;
+  }
+
+  return idx;
+}
+
+/**
+  Returns the index of the first bit (least significant bit), set "1"
+  for each char in the range (start end).
+
+  @param start pointer to the first character.
+  @param end pointer to the location after the last character.
+  @param offset
+  @return index of the first bit set in the first character that has a
+    bit turned on. Zero if all bits are zero.
+
+*/
+static inline int
+bitops_next_set(unsigned char *start, unsigned char *end, int offset)
+{
+  extern unsigned char bit_table[];
+
+  unsigned char *p;
+  unsigned char c;
+  size_t idx;
+  int t;
+
+  idx = 0;
+  p = start + offset / 8;
+  t = (offset % 8) + 1;
+
+  while (p != end) {
+    idx = bit_table[*p];
+    if (idx) {
+      c = *p;
+      while (idx && (idx <= (size_t) t)) {
+        c &= ~(1 << (idx - 1));
+        idx = bit_table[c];
+      }
+
+      if (idx) {
+        break;
+      }
+    }
+    p += 1;
+    t = 0;
+  }
+
+  if (idx) {
+    idx -= 1;
+    idx += (p - start) * 8;
+  } else {
+    idx = (size_t) - 1;
+  }
+
+  return (int) idx;
+}
+
+static inline int
+bitops_next_unset(unsigned char *start, unsigned char *end, int offset)
+{
+  extern unsigned char bit_table[];
+
+  unsigned char *p;
+  unsigned char c;
+  size_t idx;
+  int t;
+
+  idx = 0;
+  p = start + offset / 8;
+  t = (offset % 8) + 1;
+
+  while (p != end) {
+    c = ~(*p);
+    idx = bit_table[c];
+    if (idx) {
+      while (idx && (idx <= (size_t) t)) {
+        c &= ~(1 << (idx - 1));
+        idx = bit_table[c];
+      }
+
+      if (idx) {
+        break;
+      }
+    }
+    p += 1;
+    t = 0;
+  }
+
+  if (idx) {
+    idx -= 1;
+    idx += (p - start) * 8;
+  } else {
+    idx = (size_t) - 1;
+  }
+
+  return (int) idx;
+}
+
+static inline int
+bitops_count(unsigned char *start, unsigned char *end)
+{
+  extern unsigned char bit_count_table[];
+
+  int count;
+
+  count = 0;
+  while (start != end) {
+    count += bit_count_table[*start++];
+  }
+
+  return count;
+}
+
+static inline void
+bitops_union(unsigned char *s1, unsigned char *s2, int len)
+{
+  int i;
+
+  if (!s1 || !s2) {
+    return;
+  }
+
+  for (i = 0; i < len; i++) {
+    s1[i] |= s2[i];
+  }
+}
+
+static inline unsigned char
+bitops_set(unsigned char val, int bit)
+{
+  return (val | (1 << bit));
+}
+
+static inline void
+bitops_set(unsigned char *val, int bit)
+{
+  int pos = bit >> 3;
+  int idx = bit & 0x7;
+  val[pos] |= (1 << idx);
+}
+
+static inline unsigned char
+bitops_unset(unsigned char val, int bit)
+{
+  return (val & ~(1 << bit));
+}
+
+static inline void
+bitops_unset(unsigned char *val, int bit)
+{
+  int pos = bit >> 3;
+  int idx = bit & 0x7;
+  val[pos] &= ~(1 << idx);
+}
+
+static inline int
+bitops_isset(unsigned char val, int bit)
+{
+  return ((val & (1 << bit)) != 0);
+}
+
+static inline int
+bitops_isset(unsigned char *val, int bit)
+{
+  int pos = bit / 8;
+  int idx = bit % 8;
+  return ((val[pos] & (1 << idx)) != 0);
+}
+
+#endif /* __BITOPS_H__ */
+
diff --git a/lib/ts/Compatability.h b/lib/ts/Compatability.h
new file mode 100644
index 00000000..c88d4ba3
--- /dev/null
+++ b/lib/ts/Compatability.h
@@ -0,0 +1,73 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_Compatability_h_)
+#define _Compatability_h_
+
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <strings.h>
+
+#include "ink_defs.h"
+
+// We can't use #define for min and max becuase it will conflict with
+// other declarations of min and max functions.  This conflict
+// occurs with STL
+template<class T> T min(const T a, const T b)
+{
+  return a < b ? a : b;
+}
+
+template<class T> T max(const T a, const T b)
+{
+  return a > b ? a : b;
+}
+
+#define _O_ATTRIB_NORMAL  0x0000
+#define _O_ATTRIB_OVERLAPPED 0x0000
+
+//
+// If you the gethostbyname() routines on your system are automatically
+// re-entrent (as in Digital Unix), define the following
+//
+#if defined(linux)
+#define NEED_ALTZONE_DEFINED
+#define MAP_SHARED_MAP_NORESERVE (MAP_SHARED)
+#elif defined(darwin)
+#define MAP_SHARED_MAP_NORESERVE (MAP_SHARED)
+#elif defined(solaris)
+#define NEED_ALTZONE_DEFINED
+#define MAP_SHARED_MAP_NORESERVE (MAP_SHARED | MAP_NORESERVE)
+#else
+#define MAP_SHARED_MAP_NORESERVE (MAP_SHARED | MAP_NORESERVE)
+#endif
+
+#if defined(darwin)
+typedef uint32_t in_addr_t;
+#endif
+
+#define NEED_HRTIME
+
+#endif
diff --git a/lib/ts/CompileParseRules.cc b/lib/ts/CompileParseRules.cc
new file mode 100644
index 00000000..20a10f3a
--- /dev/null
+++ b/lib/ts/CompileParseRules.cc
@@ -0,0 +1,146 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#define COMPILE_PARSE_RULES
+
+#include "ParseRules.h"
+
+const unsigned int parseRulesCType[256] = { 0 };
+const char parseRulesCTypeToUpper[256] = { 0 };
+const char parseRulesCTypeToLower[256] = { 0 };
+
+unsigned int tparseRulesCType[256];
+char tparseRulesCTypeToUpper[256];
+char tparseRulesCTypeToLower[256];
+
+
+#include <stdio.h>
+#include <ctype.h>
+#include "ink_string.h"
+
+static char *
+uint_to_binary(unsigned int u)
+{
+  int i;
+  static char buf[33];
+  for (i = 0; i < 32; i++) {
+    buf[i] = ((u & (1 << (31 - i))) ? '1' : '0');
+  }
+  buf[32] = '\0';
+  return (buf);
+}
+
+int
+main()
+{
+  int c;
+  for (c = 0; c < 256; c++) {
+    tparseRulesCType[c] = 0;
+    tparseRulesCTypeToLower[c] = ParseRules::ink_tolower(c);
+    tparseRulesCTypeToUpper[c] = ParseRules::ink_toupper(c);
+
+    if (ParseRules::is_char(c))
+      tparseRulesCType[c] |= is_char_BIT;
+    if (ParseRules::is_upalpha(c))
+      tparseRulesCType[c] |= is_upalpha_BIT;
+    if (ParseRules::is_loalpha(c))
+      tparseRulesCType[c] |= is_loalpha_BIT;
+    if (ParseRules::is_alpha(c))
+      tparseRulesCType[c] |= is_alpha_BIT;
+    if (ParseRules::is_digit(c))
+      tparseRulesCType[c] |= is_digit_BIT;
+    if (ParseRules::is_ctl(c))
+      tparseRulesCType[c] |= is_ctl_BIT;
+    if (ParseRules::is_ws(c))
+      tparseRulesCType[c] |= is_ws_BIT;
+    if (ParseRules::is_hex(c))
+      tparseRulesCType[c] |= is_hex_BIT;
+    char cc = c;
+    if (ParseRules::is_pchar(&cc))
+      tparseRulesCType[c] |= is_pchar_BIT;
+    if (ParseRules::is_extra(c))
+      tparseRulesCType[c] |= is_extra_BIT;
+    if (ParseRules::is_safe(c))
+      tparseRulesCType[c] |= is_safe_BIT;
+    if (ParseRules::is_unsafe(c))
+      tparseRulesCType[c] |= is_unsafe_BIT;
+    if (ParseRules::is_national(c))
+      tparseRulesCType[c] |= is_national_BIT;
+    if (ParseRules::is_reserved(c))
+      tparseRulesCType[c] |= is_reserved_BIT;
+    if (ParseRules::is_unreserved(c))
+      tparseRulesCType[c] |= is_unreserved_BIT;
+    if (ParseRules::is_punct(c))
+      tparseRulesCType[c] |= is_punct_BIT;
+    if (ParseRules::is_end_of_url(c))
+      tparseRulesCType[c] |= is_end_of_url_BIT;
+    if (ParseRules::is_tspecials(c))
+      tparseRulesCType[c] |= is_tspecials_BIT;
+    if (ParseRules::is_spcr(c))
+      tparseRulesCType[c] |= is_spcr_BIT;
+    if (ParseRules::is_splf(c))
+      tparseRulesCType[c] |= is_splf_BIT;
+    if (ParseRules::is_wslfcr(c))
+      tparseRulesCType[c] |= is_wslfcr_BIT;
+    if (ParseRules::is_eow(c))
+      tparseRulesCType[c] |= is_eow_BIT;
+    if (ParseRules::is_token(c))
+      tparseRulesCType[c] |= is_token_BIT;
+    if (ParseRules::is_wildmat(c))
+      tparseRulesCType[c] |= is_wildmat_BIT;
+    if (ParseRules::is_sep(c))
+      tparseRulesCType[c] |= is_sep_BIT;
+    if (ParseRules::is_empty(c))
+      tparseRulesCType[c] |= is_empty_BIT;
+    if (ParseRules::is_alnum(c))
+      tparseRulesCType[c] |= is_alnum_BIT;
+    if (ParseRules::is_space(c))
+      tparseRulesCType[c] |= is_space_BIT;
+    if (ParseRules::is_control(c))
+      tparseRulesCType[c] |= is_control_BIT;
+    if (ParseRules::is_mime_sep(c))
+      tparseRulesCType[c] |= is_mime_sep_BIT;
+    if (ParseRules::is_http_field_name(c))
+      tparseRulesCType[c] |= is_http_field_name_BIT;
+    if (ParseRules::is_http_field_value(c))
+      tparseRulesCType[c] |= is_http_field_value_BIT;
+  }
+
+  FILE *fp = fopen("ParseRulesCType", "w");
+  for (c = 0; c < 256; c++) {
+    fprintf(fp, "/* %3d (%c) */\t", c, (isprint(c) ? c : '?'));
+    fprintf(fp, "0x%08X%c\t\t", tparseRulesCType[c], (c != 255 ? ',' : ' '));
+    fprintf(fp, "/* [%s] */\n", uint_to_binary((unsigned int) (tparseRulesCType[c])));
+  }
+  fclose(fp);
+  fp = fopen("ParseRulesCTypeToUpper", "w");
+  for (c = 0; c < 256; c++)
+    fprintf(fp, "%d%c\n", tparseRulesCTypeToUpper[c], c != 255 ? ',' : ' ');
+  fclose(fp);
+  fp = fopen("ParseRulesCTypeToLower", "w");
+  for (c = 0; c < 256; c++)
+    fprintf(fp, "%d%c\n", tparseRulesCTypeToLower[c], c != 255 ? ',' : ' ');
+  fclose(fp);
+
+  return (0);
+}
diff --git a/lib/ts/Diags.cc b/lib/ts/Diags.cc
new file mode 100644
index 00000000..ec626488
--- /dev/null
+++ b/lib/ts/Diags.cc
@@ -0,0 +1,547 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Diags.cc
+
+  This file contains code to manipulate run-time diagnostics, and print
+  warnings and errors at runtime.  Action tags and debugging tags are
+  supported, allowing run-time conditionals affecting diagnostics.
+
+  Joe User should only need to use the macros at the bottom of Diags.h
+
+
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_memory.h"
+#include "ink_defs.h"
+#include "ink_error.h"
+#include "ink_assert.h"
+#include "ink_time.h"
+#include "ink_hrtime.h"
+#include "Diags.h"
+#include "Compatability.h"
+
+
+int diags_on_for_plugins = 0;
+bool DiagsConfigState::enabled[2] = { false, false };
+
+// Global, used for all diagnostics
+inkcoreapi Diags *diags = NULL;
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      char *SrcLoc::str(char *buf, int buflen)
+//
+//      This method takes a SrcLoc source location data structure and
+//      converts it to a human-readable representation, in the buffer <buf>
+//      with length <buflen>.  The buffer will always be NUL-terminated, and
+//      must always have a length of at least 1.  The buffer address is
+//      returned on success.  The routine will only fail if the SrcLoc is
+//      not valid, or the buflen is less than 1.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+char *
+SrcLoc::str(char *buf, int buflen) const
+{
+  const char * shortname;
+
+  if (!this->valid() || buflen < 1)
+    return (NULL);
+
+  shortname = strrchr(file, '/');
+  shortname = shortname ? (shortname + 1) : file;
+
+  if (func != NULL) {
+    snprintf(buf, buflen, "%s:%d (%s)", shortname, line, func);
+  } else {
+    snprintf(buf, buflen, "%s:%d", shortname, line);
+  }
+  buf[buflen - 1] = NUL;
+  return (buf);
+}
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Diags::Diags(char *bdt, char *bat)
+//
+//      This is the constructor for the Diags class.  The constructor takes
+//      two strings called the "base debug tags" (bdt) and the
+//      "base action tags" (bat).  These represent debug/action overrides,
+//      to override the records.config values.  They current come from
+//      command-line options.
+//
+//      If bdt is not NULL, and not "", it overrides records.config settings.
+//      If bat is not NULL, and not "", it overrides records.config settings.
+//
+//      When the constructor is done, records.config callbacks will be set,
+//      the initial values read, and the Diags instance will be ready to use.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+Diags::Diags(const char *bdt, const char *bat, FILE * _diags_log_fp)
+  : diags_log_fp(_diags_log_fp), magic(DIAGS_MAGIC), show_location(0),
+    base_debug_tags(NULL), base_action_tags(NULL)
+{
+  int i;
+
+  cleanup_func = NULL;
+  ink_mutex_init(&tag_table_lock, "Diags::tag_table_lock");
+
+  ////////////////////////////////////////////////////////
+  // initialize the default, base debugging/action tags //
+  ////////////////////////////////////////////////////////
+
+  if (bdt && *bdt) {
+    base_debug_tags = ats_strdup(bdt);
+  }
+  if (bat && *bat) {
+    base_action_tags = ats_strdup(bat);
+  }
+
+  config.enabled[DiagsTagType_Debug] = (base_debug_tags != NULL);
+  config.enabled[DiagsTagType_Action] = (base_action_tags != NULL);
+  diags_on_for_plugins = config.enabled[DiagsTagType_Debug];
+
+  for (i = 0; i < DiagsLevel_Count; i++) {
+    config.outputs[i].to_stdout = false;
+    config.outputs[i].to_stderr = false;
+    config.outputs[i].to_syslog = false;
+    config.outputs[i].to_diagslog = true;
+  }
+
+  //////////////////////////////////////////////////////////////////
+  // start off with empty tag tables, will build in reconfigure() //
+  //////////////////////////////////////////////////////////////////
+
+  activated_tags[DiagsTagType_Debug] = NULL;
+  activated_tags[DiagsTagType_Action] = NULL;
+  prefix_str = "";
+
+}
+
+Diags::~Diags()
+{
+  diags_log_fp = NULL;
+
+  ats_free((void *)base_debug_tags);
+  ats_free((void *)base_action_tags);
+
+  deactivate_all(DiagsTagType_Debug);
+  deactivate_all(DiagsTagType_Action);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void Diags::print_va(...)
+//
+//      This is the lowest-level diagnostic printing routine, that does the
+//      work of formatting and outputting diagnostic and error messages,
+//      in the standard format.
+//
+//      This routine takes an optional <debug_tag>, which is printed in
+//      parentheses if its value is not NULL.  It takes a <diags_level>,
+//      which is converted to a prefix string.
+//      print_va takes an optional source location structure pointer <loc>,
+//      which can be NULL.  If <loc> is not NULL, the source code location
+//      is converted to a string, and printed between angle brackets.
+//      Finally, it takes a printf format string <format_string>, and a
+//      va_list list of varargs.
+//
+//      This routine outputs to all of the output targets enabled for this
+//      debugging level in config.outputs[diags_level].  Many higher level
+//      diagnosting printing routines are built upon print_va, including:
+//
+//              void print(...)
+//              void log_va(...)
+//              void log(...)
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+Diags::print_va(const char *debug_tag, DiagsLevel diags_level, const SrcLoc *loc,
+                const char *format_string, va_list ap) const
+{
+  struct timeval tp;
+  const char *s;
+  char *buffer, *d, timestamp_buf[48];
+  char format_buf[1024], format_buf_w_ts[1024], *end_of_format;
+
+  ////////////////////////////////////////////////////////////////////////
+  // there are 2 format buffers that hold a printf-style format string  //
+  // format_buf contains <prefix_string>: (<debug_tag>) <format_string> //
+  // and format_buf_w_ts has the same thing with a prepended timestamp. //
+  ////////////////////////////////////////////////////////////////////////
+
+  format_buf[0] = NUL;
+  format_buf_w_ts[0] = NUL;
+
+  /////////////////////////////////////////////////////
+  // format_buf holds 1024 characters, end_of_format //
+  // points to the current available character       //
+  /////////////////////////////////////////////////////
+
+  end_of_format = format_buf;
+  *end_of_format = NUL;
+
+  // add the thread id
+  pthread_t id = pthread_self();
+  end_of_format += snprintf(end_of_format, sizeof(format_buf), "{0x%" PRIx64 "} ", (uint64_t) id);
+
+  //////////////////////////////////////
+  // start with the diag level prefix //
+  //////////////////////////////////////
+
+  for (s = level_name(diags_level); *s; *end_of_format++ = *s++);
+  *end_of_format++ = ':';
+  *end_of_format++ = ' ';
+
+  /////////////////////////////
+  // append location, if any //
+  /////////////////////////////
+
+  if (loc && loc->valid()) {
+    char *lp, buf[256];
+    lp = loc->str(buf, sizeof(buf));
+    if (lp) {
+      *end_of_format++ = '<';
+      for (s = lp; *s; *end_of_format++ = *s++);
+      *end_of_format++ = '>';
+      *end_of_format++ = ' ';
+    }
+  }
+  //////////////////////////
+  // append debugging tag //
+  //////////////////////////
+
+  if (debug_tag) {
+    *end_of_format++ = '(';
+    for (s = debug_tag; *s; *end_of_format++ = *s++);
+    *end_of_format++ = ')';
+    *end_of_format++ = ' ';
+  }
+  //////////////////////////////////////////////////////
+  // append original format string, and NUL terminate //
+  //////////////////////////////////////////////////////
+
+  for (s = format_string; *s; *end_of_format++ = *s++);
+  *end_of_format++ = NUL;
+
+
+  //////////////////////////////////////////////////////////////////
+  // prepend timestamp into the timestamped version of the buffer //
+  //////////////////////////////////////////////////////////////////
+
+  ink_gethrtimeofday(&tp, NULL);
+  time_t cur_clock = (time_t) tp.tv_sec;
+  buffer = ink_ctime_r(&cur_clock, timestamp_buf);
+  snprintf(&(timestamp_buf[19]), (sizeof(timestamp_buf) - 20), ".%03d", (int) (tp.tv_usec / 1000));
+
+  d = format_buf_w_ts;
+  *d++ = '[';
+  for (int i = 4; buffer[i]; i++)
+    *d++ = buffer[i];
+  *d++ = ']';
+  *d++ = ' ';
+
+  for (int k = 0; prefix_str[k]; k++)
+    *d++ = prefix_str[k];
+  for (s = format_buf; *s; *d++ = *s++);
+  *d++ = NUL;
+
+  //////////////////////////////////////
+  // now, finally, output the message //
+  //////////////////////////////////////
+
+  lock();
+  if (config.outputs[diags_level].to_diagslog) {
+    if (diags_log_fp) {
+      va_list ap_scratch;
+      va_copy(ap_scratch, ap);
+      buffer = format_buf_w_ts;
+      vfprintf(diags_log_fp, buffer, ap_scratch);
+      {
+        int len = strlen(buffer);
+        if (len > 0 && buffer[len - 1] != '\n') {
+          putc('\n', diags_log_fp);
+        }
+      }
+    }
+  }
+
+  if (config.outputs[diags_level].to_stdout) {
+    va_list ap_scratch;
+    va_copy(ap_scratch, ap);
+    buffer = format_buf_w_ts;
+    vfprintf(stdout, buffer, ap_scratch);
+    {
+      int len = strlen(buffer);
+      if (len > 0 && buffer[len - 1] != '\n') {
+        putc('\n', stdout);
+      }
+    }
+  }
+
+  if (config.outputs[diags_level].to_stderr) {
+    va_list ap_scratch;
+    va_copy(ap_scratch, ap);
+    buffer = format_buf_w_ts;
+    vfprintf(stderr, buffer, ap_scratch);
+    {
+      int len = strlen(buffer);
+      if (len > 0 && buffer[len - 1] != '\n') {
+        putc('\n', stderr);
+      }
+    }
+  }
+
+#if !defined(freebsd)
+  unlock();
+#endif
+
+  if (config.outputs[diags_level].to_syslog) {
+    int priority;
+    char syslog_buffer[2048];
+
+    switch (diags_level) {
+    case DL_Diag:
+    case DL_Debug:
+      priority = LOG_DEBUG;
+
+      break;
+    case DL_Status:
+      priority = LOG_INFO;
+      break;
+    case DL_Note:
+      priority = LOG_NOTICE;
+      break;
+    case DL_Warning:
+      priority = LOG_WARNING;
+      break;
+    case DL_Error:
+      priority = LOG_ERR;
+      break;
+    case DL_Fatal:
+      priority = LOG_CRIT;
+      break;
+    case DL_Alert:
+      priority = LOG_ALERT;
+      break;
+    case DL_Emergency:
+      priority = LOG_EMERG;
+      break;
+    default:
+      priority = LOG_NOTICE;
+      break;
+    }
+    vsnprintf(syslog_buffer, sizeof(syslog_buffer) - 1, format_buf, ap);
+    syslog(priority, "%s", syslog_buffer);
+  }
+#if defined(freebsd)
+  unlock();
+#endif
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      bool Diags::tag_activated(char * tag, DiagsTagType mode)
+//
+//      This routine inquires if a particular <tag> in the tag table of
+//      type <mode> is activated, returning true if it is, false if it
+//      isn't.  If <tag> is NULL, true is returned.  The call uses a lock
+//      to get atomic access to the tag tables.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+bool
+Diags::tag_activated(const char *tag, DiagsTagType mode) const
+{
+  bool activated = false;
+
+  if (tag == NULL)
+    return (true);
+
+  lock();
+  if (activated_tags[mode])
+    activated = (activated_tags[mode]->match(tag) != -1);
+  unlock();
+
+  return (activated);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void Diags::activate_taglist(char * taglist, DiagsTagType mode)
+//
+//      This routine adds all tags in the vertical-bar-seperated taglist
+//      to the tag table of type <mode>.  Each addition is done under a lock.
+//      If an individual tag is already set, that tag is ignored.  If
+//      <taglist> is NULL, this routine exits immediately.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+Diags::activate_taglist(const char *taglist, DiagsTagType mode)
+{
+  if (taglist) {
+    lock();
+    if (activated_tags[mode]) {
+      delete activated_tags[mode];
+    }
+    activated_tags[mode] = new DFA;
+    activated_tags[mode]->compile(taglist);
+    unlock();
+  }
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void Diags::deactivate_all(DiagsTagType mode)
+//
+//      This routine deactivates all tags in the tag table of type <mode>.
+//      The deactivation is done under a lock.  When done, the taglist will
+//      be empty.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+Diags::deactivate_all(DiagsTagType mode)
+{
+  lock();
+  if (activated_tags[mode]) {
+    delete activated_tags[mode];
+    activated_tags[mode] = NULL;
+  }
+  unlock();
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      const char *Diags::level_name(DiagsLevel dl)
+//
+//      This routine returns a string name corresponding to the error
+//      level <dl>, suitable for us as an output log entry prefix.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+const char *
+Diags::level_name(DiagsLevel dl) const
+{
+  switch (dl) {
+  case DL_Diag:
+    return ("DIAG");
+  case DL_Debug:
+    return ("DEBUG");
+  case DL_Status:
+    return ("STATUS");
+  case DL_Note:
+    return ("NOTE");
+  case DL_Warning:
+    return ("WARNING");
+  case DL_Error:
+    return ("ERROR");
+  case DL_Fatal:
+    return ("FATAL");
+  case DL_Alert:
+    return ("ALERT");
+  case DL_Emergency:
+    return ("EMERGENCY");
+  default:
+    return ("DIAG");
+  }
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void Diags::dump(FILE *fp)
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+Diags::dump(FILE * fp) const
+{
+  int i;
+
+  fprintf(fp, "Diags:\n");
+  fprintf(fp, "  debug.enabled: %d\n", config.enabled[DiagsTagType_Debug]);
+  fprintf(fp, "  debug default tags: '%s'\n", (base_debug_tags ? base_debug_tags : "NULL"));
+  fprintf(fp, "  action.enabled: %d\n", config.enabled[DiagsTagType_Action]);
+  fprintf(fp, "  action default tags: '%s'\n", (base_action_tags ? base_action_tags : "NULL"));
+  fprintf(fp, "  outputs:\n");
+  for (i = 0; i < DiagsLevel_Count; i++) {
+    fprintf(fp, "    %10s [stdout=%d, stderr=%d, syslog=%d, diagslog=%d]\n",
+            level_name((DiagsLevel) i),
+            config.outputs[i].to_stdout,
+            config.outputs[i].to_stderr, config.outputs[i].to_syslog, config.outputs[i].to_diagslog);
+  }
+}
+
+void
+Diags::log(const char *tag, DiagsLevel level,
+           const char *file, const char *func, const int line,
+           const char *format_string ...) const
+{
+  if (! on(tag))
+    return;
+
+  va_list ap;
+  va_start(ap, format_string);
+  if (show_location) {
+    SrcLoc lp(file, func, line);
+    print_va(tag, level, &lp, format_string, ap);
+  } else {
+    print_va(tag, level, NULL, format_string, ap);
+  }
+  va_end(ap);
+}
+
+void
+Diags::error_va(DiagsLevel level,
+             const char *file, const char *func, const int line,
+             const char *format_string, va_list ap) const
+{
+  if (show_location) {
+    SrcLoc lp(file, func, line);
+    print_va(NULL, level, &lp, format_string, ap);
+  } else {
+    print_va(NULL, level, NULL, format_string, ap);
+  }
+
+  if (DiagsLevel_IsTerminal(level)) {
+    if (cleanup_func)
+      cleanup_func();
+    ink_fatal_va(1, format_string, ap);
+  }
+}
diff --git a/lib/ts/Diags.h b/lib/ts/Diags.h
new file mode 100644
index 00000000..bad36c55
--- /dev/null
+++ b/lib/ts/Diags.h
@@ -0,0 +1,327 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Diags.h
+
+  This file contains code to manipulate run-time diagnostics, and print
+  warnings and errors at runtime.  Action tags and debugging tags are
+  supported, allowing run-time conditionals affecting diagnostics.
+
+
+ ****************************************************************************/
+
+#ifndef __DIAGS_H___
+#define __DIAGS_H___
+
+#include <stdarg.h>
+#include "ink_error.h"
+#include "ink_mutex.h"
+#include "Regex.h"
+#include "ink_apidefs.h"
+
+#define DIAGS_MAGIC 0x12345678
+
+class Diags;
+
+// extern int diags_on_for_plugins;
+typedef enum
+{
+  DiagsTagType_Debug = 0,       // do not renumber --- used as array index
+  DiagsTagType_Action = 1
+} DiagsTagType;
+
+struct DiagsModeOutput
+{
+  bool to_stdout;
+  bool to_stderr;
+  bool to_syslog;
+  bool to_diagslog;
+};
+
+typedef enum
+{                               // do not renumber --- used as array index
+  DL_Diag = 0,                  // process does not die
+  DL_Debug,                     // process does not die
+  DL_Status,                    // process does not die
+  DL_Note,                      // process does not die
+  DL_Warning,                   // process does not die
+  DL_Error,                     // process does not die
+  DL_Fatal,                     // causes process termination
+  DL_Alert,                     // causes process termination
+  DL_Emergency,                 // causes process termination
+  DL_Undefined                  // must be last, used for size!
+} DiagsLevel;
+
+#define DiagsLevel_Count DL_Undefined
+
+#define DiagsLevel_IsTerminal(_l) (((_l) >= DL_Fatal) && ((_l) < DL_Undefined))
+
+// Cleanup Function Prototype - Called before ink_fatal to
+//   cleanup process state
+typedef void (*DiagsCleanupFunc) ();
+
+struct DiagsConfigState
+{
+  // this is static to eliminate many loads from the critical path
+  static bool enabled[2];                       // one debug, one action
+  DiagsModeOutput outputs[DiagsLevel_Count];    // where each level prints
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      class SrcLoc
+//
+//      The SrcLoc class wraps up a source code location, including file
+//      name, function name, and line number, and contains a method to
+//      format the result into a string buffer.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#define DiagsMakeLocation() SrcLoc(__FILE__, __FUNCTION__, __LINE__)
+
+class SrcLoc
+{
+public:
+  const char *file;
+  const char *func;
+  const int line;
+
+  bool valid() const {
+    return file && line;
+  }
+
+  SrcLoc(const char *_file, const char *_func, int _line)
+    : file(_file), func(_func), line(_line) {
+  }
+
+  char * str(char *buf, int buflen) const;
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      class Diags
+//
+//      The Diags class is used for global configuration of the run-time
+//      diagnostics system.  This class provides the following services:
+//
+//      * run-time notices, debugging, warnings, errors
+//      * debugging tags to selectively enable & disable diagnostics
+//      * action tags to selectively enable & disable code paths
+//      * configurable output to stdout, stderr, syslog, error logs
+//      * traffic_manager interface supporting on-the-fly reconfiguration
+//
+//////////////////////////////////////////////////////////////////////////////
+
+class Diags
+{
+public:
+  Diags(const char *base_debug_tags, const char *base_action_tags, FILE * _diags_log_fp = NULL);
+   ~Diags();
+
+  FILE *diags_log_fp;
+  const unsigned int magic;
+  volatile DiagsConfigState config;
+  int show_location;
+  DiagsCleanupFunc cleanup_func;
+  const char *prefix_str;
+
+  ///////////////////////////
+  // conditional debugging //
+  ///////////////////////////
+
+  bool on(DiagsTagType mode = DiagsTagType_Debug) const {
+    return (config.enabled[mode]);
+  }
+
+  bool on(const char *tag, DiagsTagType mode = DiagsTagType_Debug) const {
+    return (config.enabled[mode] && tag_activated(tag, mode));
+  }
+
+  /////////////////////////////////////
+  // low-level tag inquiry functions //
+  /////////////////////////////////////
+
+  inkcoreapi bool tag_activated(const char *tag, DiagsTagType mode = DiagsTagType_Debug) const;
+
+  /////////////////////////////
+  // raw printing interfaces //
+  /////////////////////////////
+
+  const char *level_name(DiagsLevel dl) const;
+
+  inkcoreapi void print_va(const char *tag, DiagsLevel dl,
+                           const SrcLoc *loc, const char *format_string, va_list ap) const;
+
+
+  //////////////////////////////
+  // user printing interfaces //
+  //////////////////////////////
+
+  void print(const char *tag, DiagsLevel dl, const char *file, const char *func,
+             const int line, const char *format_string, ...) const TS_PRINTFLIKE(7, 8)
+  {
+    va_list ap;
+    va_start(ap, format_string);
+    if (show_location) {
+      SrcLoc lp(file, func, line);
+      print_va(tag, dl, &lp, format_string, ap);
+    } else {
+      print_va(tag, dl, NULL, format_string, ap);
+    }
+    va_end(ap);
+  }
+
+  ///////////////////////////////////////////////////////////////////////
+  // user diagnostic output interfaces --- enabled on or off based     //
+  // on the value of the enable flag, and the state of the debug tags. //
+  ///////////////////////////////////////////////////////////////////////
+
+  void log_va(const char *tag, DiagsLevel dl, const SrcLoc * loc, const char *format_string, va_list ap)
+  {
+    if (!on(tag))
+      return;
+    print_va(tag, dl, loc, format_string, ap);
+  }
+
+  void log(const char *tag, DiagsLevel dl,
+           const char *file, const char *func, const int line,
+           const char *format_string, ...) const TS_PRINTFLIKE(7, 8);
+
+  void error_va(DiagsLevel dl,
+             const char *file, const char *func, const int line,
+             const char *format_string, va_list ap) const;
+
+  void
+  error(DiagsLevel level,
+               const char *file, const char *func, const int line,
+               const char *format_string, ...) const TS_PRINTFLIKE(6, 7)
+  {
+    va_list ap;
+    va_start(ap, format_string);
+    error_va(level, file, func, line, format_string, ap);
+    va_end(ap);
+  }
+
+  void dump(FILE * fp = stdout) const;
+
+  void activate_taglist(const char *taglist, DiagsTagType mode = DiagsTagType_Debug);
+
+  void deactivate_all(DiagsTagType mode = DiagsTagType_Debug);
+
+  const char *base_debug_tags;        // internal copy of default debug tags
+  const char *base_action_tags;       // internal copy of default action tags
+
+private:
+  mutable ink_mutex tag_table_lock;   // prevents reconfig/read races
+  DFA *activated_tags[2];             // 1 table for debug, 1 for action
+
+  void lock() const
+  {
+    ink_mutex_acquire(&tag_table_lock);
+  }
+  void unlock() const
+  {
+    ink_mutex_release(&tag_table_lock);
+  }
+};
+
+//////////////////////////////////////////////////////////////////////////
+//                                                                      //
+//      Macros                                                          //
+//                                                                      //
+//      The following are diagnostic macros that wrap up the compiler   //
+//      __FILE__, __FUNCTION__, and __LINE__ macros into closures       //
+//      and then invoke the closure on the remaining arguments.         //
+//                                                                      //
+//      This closure hack is done, because the cpp preprocessor doesn't //
+//      support manipulation and union of varargs parameters.           //
+//                                                                      //
+//////////////////////////////////////////////////////////////////////////
+
+#if !defined (__GNUC__)
+#ifndef __FUNCTION__
+#define __FUNCTION__ NULL
+#endif
+#endif
+
+extern inkcoreapi Diags *diags;
+
+#define DTA(l)    l,__FILE__,__FUNCTION__,__LINE__
+void dummy_debug(const char * tag, const char *fmt, ...) TS_PRINTFLIKE(2, 3);
+inline void
+dummy_debug(const char *tag, const char *fmt, ...)
+{
+  (void)tag;
+  (void)fmt;
+}
+
+#define Status(...)    diags->error(DTA(DL_Status), __VA_ARGS__)
+#define Note(...)      diags->error(DTA(DL_Note), __VA_ARGS__)
+#define Warning(...)   diags->error(DTA(DL_Warning), __VA_ARGS__)
+#define Error(...)     diags->error(DTA(DL_Error), __VA_ARGS__)
+#define Fatal(...)     diags->error(DTA(DL_Fatal), __VA_ARGS__)
+#define Alert(...)     diags->error(DTA(DL_Alert), __VA_ARGS__)
+#define Emergency(...) diags->error(DTA(DL_Emergency), __VA_ARGS__)
+
+#define StatusV(fmt, ap)    diags->error_va(DTA(DL_Status), fmt, ap)
+#define NoteV(fmt, ap)      diags->error_va(DTA(DL_Note), fmt, ap)
+#define WarningV(fmt, ap)   diags->error_va(DTA(DL_Warning), fmt, ap)
+#define ErrorV(fmt, ap)     diags->error_va(DTA(DL_Error), fmt, ap)
+#define FatalV(fmt, ap)     diags->error_va(DTA(DL_Fatal), fmt, ap)
+#define AlertV(fmt, ap)     diags->error_va(DTA(DL_Alert), fmt, ap)
+#define EmergencyV(fmt, ap) diags->error_va(DTA(DL_Emergency), fmt, ap)
+
+#ifdef TS_USE_DIAGS
+#define Diag(tag, ...)      if (unlikely(diags->on())) diags->log(tag, DTA(DL_Diag), __VA_ARGS__)
+#define Debug(tag, ...)     if (unlikely(diags->on())) diags->log(tag, DTA(DL_Debug), __VA_ARGS__)
+#define DiagSpecific(flag, tag, ...)  if (unlikely(diags->on())) flag ? diags->print(tag, DTA(DL_Diag), __VA_ARGS__) : \
+                                                                   diags->log(tag, DTA(DL_Diag), __VA_ARGS__)
+#define DebugSpecific(flag, tag, ...)  if (unlikely(diags->on())) flag ? diags->print(tag, DTA(DL_Debug), __VA_ARGS__) : \
+                                                                    diags->log(tag, DTA(DL_Debug), __VA_ARGS__)
+
+#define is_debug_tag_set(_t)     unlikely(diags->on(_t,DiagsTagType_Debug))
+#define is_action_tag_set(_t)    unlikely(diags->on(_t,DiagsTagType_Action))
+#define debug_tag_assert(_t,_a)  (is_debug_tag_set(_t) ? (ink_release_assert(_a), 0) : 0)
+#define action_tag_assert(_t,_a) (is_action_tag_set(_t) ? (ink_release_assert(_a), 0) : 0)
+#define is_diags_on(_t)          unlikely(diags->on(_t))
+
+#else // TS_USE_DIAGS
+
+#define Diag(tag, fmt, ...)      if (0) dummy_debug(tag, __VA_ARGS__)
+#define Debug(tag, fmt, ...)     if (0) dummy_debug(tag, __VA_ARGS__)
+#define DiagSpecific(flag, tag, ...)  if (0 && tag) dummy_debug(tag, __VA_ARGS__);
+#define DebugSpecific(flag, tag, ...)  if (0 && tag) dummy_debug(tag, __VA_ARGS__);
+
+
+#define is_debug_tag_set(_t)     0
+#define is_action_tag_set(_t)    0
+#define debug_tag_assert(_t,_a) /**/
+#define action_tag_assert(_t,_a) /**/
+#define is_diags_on(_t)          0
+
+#endif // TS_USE_DIAGS
+#endif  /*_Diags_h_*/
diff --git a/lib/ts/DynArray.h b/lib/ts/DynArray.h
new file mode 100644
index 00000000..aa7a599d
--- /dev/null
+++ b/lib/ts/DynArray.h
@@ -0,0 +1,191 @@
+/** @file
+
+  Dynamic Array Implementation used by Regex.cc
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __DYN_ARRAY_H__
+#define __DYN_ARRAY_H__
+
+template<class T> class DynArray {
+public:
+  DynArray(const T * val = 0, intptr_t initial_size = 0);
+  ~DynArray();
+
+#ifndef __GNUC__
+  operator  const T *() const;
+#endif
+  operator  T *();
+  T & operator[](intptr_t idx);
+  T & operator()(intptr_t idx);
+  T *detach();
+  T defvalue() const;
+  intptr_t length();
+  void clear();
+  void set_length(intptr_t i);
+
+private:
+  void resize(intptr_t new_size);
+
+private:
+  T * data;
+  const T *default_val;
+  int size;
+  int pos;
+};
+
+
+template<class T> inline DynArray<T>::DynArray(const T * val, intptr_t initial_size)
+  :
+data(NULL),
+default_val(val),
+size(0),
+pos(-1)
+{
+  if (initial_size > 0) {
+    int i = 1;
+
+    while (i < initial_size)
+      i <<= 1;
+
+    resize(i);
+  }
+
+}
+
+template<class T> inline DynArray<T>::~DynArray()
+{
+  if (data) {
+    delete[]data;
+  }
+}
+
+#ifndef __GNUC__
+template<class T> inline DynArray<T>::operator  const T *()
+const
+{
+  return
+    data;
+}
+#endif
+
+template <
+  class
+  T >
+  inline
+  DynArray <
+  T >::operator
+T * ()
+{
+  return data;
+}
+
+template<class T> inline T & DynArray<T>::operator [](intptr_t idx) {
+  return data[idx];
+}
+
+template<class T> inline T & DynArray<T>::operator ()(intptr_t idx) {
+  if (idx >= size) {
+    intptr_t new_size;
+
+    if (size == 0) {
+      new_size = 64;
+    } else {
+      new_size = size * 2;
+    }
+
+    if (idx >= new_size) {
+      new_size = idx + 1;
+    }
+
+    resize(new_size);
+  }
+
+  if (idx > pos) {
+    pos = idx;
+  }
+
+  return data[idx];
+}
+
+template<class T> inline T * DynArray<T>::detach()
+{
+  T *d;
+
+  d = data;
+  data = NULL;
+
+  return d;
+}
+
+template<class T> inline T DynArray<T>::defvalue() const
+{
+  return *default_val;
+}
+
+template<class T> inline intptr_t DynArray<T>::length()
+{
+  return pos + 1;
+}
+
+template<class T> inline void DynArray<T>::clear()
+{
+  if (data) {
+    delete[]data;
+    data = NULL;
+  }
+
+  size = 0;
+  pos = -1;
+}
+
+template<class T> inline void DynArray<T>::set_length(intptr_t i)
+{
+  pos = i - 1;
+}
+
+template<class T> inline void DynArray<T>::resize(intptr_t new_size)
+{
+  if (new_size > size) {
+    T *new_data;
+    intptr_t i;
+
+    new_data = new T[new_size];
+
+    for (i = 0; i < size; i++) {
+      new_data[i] = data[i];
+    }
+
+    for (; i < new_size; i++) {
+      if (default_val)
+        new_data[i] = (T) * default_val;
+    }
+
+    if (data) {
+      delete[]data;
+    }
+    data = new_data;
+    size = new_size;
+  }
+}
+
+
+#endif /* __DYN_ARRAY_H__ */
+
diff --git a/lib/ts/EventNotify.cc b/lib/ts/EventNotify.cc
new file mode 100644
index 00000000..296e220b
--- /dev/null
+++ b/lib/ts/EventNotify.cc
@@ -0,0 +1,189 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  EventNotify.cc
+
+  Generic event notify mechanism among threads.
+**************************************************************************/
+
+#include "EventNotify.h"
+#include "ink_hrtime.h"
+#include "ink_defs.h"
+
+#ifdef HAVE_EVENTFD
+#include <sys/eventfd.h>
+#include <sys/fcntl.h>
+#include <sys/epoll.h>
+#endif
+
+EventNotify::EventNotify()
+{
+#ifdef HAVE_EVENTFD
+  int ret;
+  struct epoll_event ev;
+
+  m_event_fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+  if (m_event_fd < 0) {
+    // EFD_NONBLOCK/EFD_CLOEXEC invalid in <= Linux 2.6.27
+    m_event_fd = eventfd(0, 0);
+
+    fcntl(m_event_fd, F_SETFD, FD_CLOEXEC);
+    fcntl(m_event_fd, F_SETFL, O_NONBLOCK);
+  }
+  ink_release_assert(m_event_fd != -1);
+
+  ev.events = EPOLLIN;
+  ev.data.fd = m_event_fd;
+
+  m_epoll_fd = epoll_create(1);
+  ink_release_assert(m_epoll_fd != -1);
+
+  ret = epoll_ctl(m_epoll_fd, EPOLL_CTL_ADD, m_event_fd, &ev);
+  ink_release_assert(ret != -1);
+#else
+  ink_cond_init(&m_cond);
+  ink_mutex_init(&m_mutex, NULL);
+#endif
+}
+
+void
+EventNotify::signal(void)
+{
+#ifdef HAVE_EVENTFD
+  uint64_t value = 1;
+  //
+  // If the addition would cause the counter’s value of eventfd
+  // to exceed the maximum, write() will fail with the errno EAGAIN,
+  // which is acceptable as the receiver will be notified eventually.
+  //
+  ATS_UNUSED_RETURN(write(m_event_fd, &value, sizeof(uint64_t)));
+#else
+  ink_cond_signal(&m_cond);
+#endif
+}
+
+int
+EventNotify::wait(void)
+{
+#ifdef HAVE_EVENTFD
+  ssize_t nr, nr_fd;
+  uint64_t value = 0;
+  struct epoll_event ev;
+
+  do {
+    nr_fd = epoll_wait(m_epoll_fd, &ev, 1, -1);
+  } while (nr_fd == -1 && errno == EINTR);
+
+  if (nr_fd == -1)
+    return errno;
+
+  nr = read(m_event_fd, &value, sizeof(uint64_t));
+  if (nr == sizeof(uint64_t))
+    return 0;
+  else
+    return errno;
+#else
+  ink_cond_wait(&m_cond, &m_mutex);
+  return 0;
+#endif
+}
+
+int
+EventNotify::timedwait(int timeout) // milliseconds
+{
+#ifdef HAVE_EVENTFD
+  ssize_t nr, nr_fd = 0;
+  uint64_t value = 0;
+  struct epoll_event ev;
+
+  //
+  // When timeout < 0, epoll_wait() will wait indefinitely, but
+  // pthread_cond_timedwait() will return ETIMEDOUT immediately.
+  // We should keep compatible with pthread_cond_timedwait() here.
+  //
+  if (timeout < 0)
+    return ETIMEDOUT;
+
+  do {
+    nr_fd = epoll_wait(m_epoll_fd, &ev, 1, timeout);
+  } while (nr_fd == -1 && errno == EINTR);
+
+  if (nr_fd == 0)
+    return ETIMEDOUT;
+  else if (nr_fd == -1)
+    return errno;
+
+  nr = read(m_event_fd, &value, sizeof(uint64_t));
+  if (nr == sizeof(uint64_t))
+    return 0;
+  else
+    return errno;
+#else
+  ink_timestruc abstime;
+
+  abstime = ink_hrtime_to_timespec(ink_get_hrtime_internal() + HRTIME_SECONDS(timeout));
+  return ink_cond_timedwait(&m_cond, &m_mutex, &abstime);
+#endif
+}
+
+void
+EventNotify::lock(void)
+{
+#ifdef HAVE_EVENTFD
+  // do nothing
+#else
+  ink_mutex_acquire(&m_mutex);
+#endif
+}
+
+bool
+EventNotify::trylock(void)
+{
+#ifdef HAVE_EVENTFD
+  return true;
+#else
+  return ink_mutex_try_acquire(&m_mutex);
+#endif
+}
+
+void
+EventNotify::unlock(void)
+{
+#ifdef HAVE_EVENTFD
+  // do nothing
+#else
+  ink_mutex_release(&m_mutex);
+#endif
+}
+
+EventNotify::~EventNotify()
+{
+#ifdef HAVE_EVENTFD
+  close(m_event_fd);
+  close(m_epoll_fd);
+#else
+  ink_cond_destroy(&m_cond);
+  ink_mutex_destroy(&m_mutex);
+#endif
+}
diff --git a/lib/ts/EventNotify.h b/lib/ts/EventNotify.h
new file mode 100644
index 00000000..7223e6de
--- /dev/null
+++ b/lib/ts/EventNotify.h
@@ -0,0 +1,59 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  EventNotify.h
+
+  Generic event notify mechanism among threads.
+
+**************************************************************************/
+
+#ifndef EVENT_NOTIFY_H
+#define EVENT_NOTIFY_H
+
+#include "ink_thread.h"
+
+class EventNotify
+{
+public:
+  EventNotify();
+  void signal(void);
+  int wait(void);
+  int timedwait(int timeout); // milliseconds
+  void lock(void);
+  bool trylock(void);
+  void unlock(void);
+  ~EventNotify();
+
+private:
+#ifdef HAVE_EVENTFD
+  int m_event_fd;
+  int m_epoll_fd;
+#else
+  ink_cond m_cond;
+  ink_mutex m_mutex;
+#endif
+};
+
+#endif /* EVENT_NOTIFY_H */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/lib/ts/HostLookup.cc b/lib/ts/HostLookup.cc
new file mode 100644
index 00000000..bdb4a050
--- /dev/null
+++ b/lib/ts/HostLookup.cc
@@ -0,0 +1,1327 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  HostLookup.cc - Implementation of a hostname/domainname matcher
+ *
+ *
+ ****************************************************************************/
+#include "libts.h"
+#include "HostLookup.h"
+#include "MatcherUtils.h"
+
+// bool domaincmp(const char* hostname, const char* domain)
+//
+//    Returns true if hostname is in domain
+//
+bool
+domaincmp(const char *hostname, const char *domain)
+{
+  ink_assert(hostname != NULL);
+  ink_assert(domain != NULL);
+
+  const char *host_cur = hostname + strlen(hostname);
+  const char *domain_cur = domain + strlen(domain);
+
+  // Check to see if were passed emtpy stings for either
+  //  argument.  Empty strings do not match anything
+  //
+  if (domain_cur == domain || host_cur == hostname) {
+    return false;
+  }
+  // Go back to the last character
+  domain_cur--;
+  host_cur--;
+
+  // Trailing dots should be ignored since they are optional
+  //
+  if (*(domain_cur) == '.') {
+    domain_cur--;
+  }
+  if (*(host_cur) == '.') {
+    host_cur--;
+  }
+  // Walk through both strings backward
+  while (domain_cur >= domain && host_cur >= hostname) {
+
+    // If we still have characters left on both strings and
+    //   they do not match, matching fails
+    //
+    if (tolower(*domain_cur) != tolower(*host_cur)) {
+      return false;
+    }
+
+    domain_cur--;
+    host_cur--;
+  };
+
+  // There are three possible cases that could have gotten us
+  //  here
+  //
+  //     Case 1: we ran out of both strings
+  //     Case 2: we ran out of domain but not hostname
+  //     Case 3: we ran out of hostname but not domain
+  //
+  if (domain_cur < domain) {
+    if (host_cur < hostname) {
+      // This covers the case 1
+      //   ex: example.com matching example.com
+      return true;
+    } else {
+      // This covers case 2 (the most common case):
+      //   ex: www.example.com matching .com or com
+      // But we must check that we do match
+      //   www.inktomi.ecom against com
+      //
+      if (*(domain_cur + 1) == '.') {
+        return true;
+      } else if (*host_cur == '.') {
+        return true;
+      } else {
+        return false;
+      }
+    }
+  } else if (host_cur < hostname) {
+    // This covers the case 3 (a very unusual case)
+    //  ex: example.com needing to match .example.com
+    if (*domain_cur == '.' && domain_cur == domain) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  ink_assert(!"Should not get here");
+  return false;
+}
+
+// int hostcmp(const char* c1, const char* c2)
+//
+//   Similar to strcasecmp except that if one string has a
+//     trailing '.' and the other one does not
+//     then they are equal
+//
+//   Meant to compare to host names and
+//     take in out account that www.example.com
+//     and www.example.com. are the same host
+//     since the trailing dot is optional
+//
+int
+hostcmp(const char *c1, const char *c2)
+{
+  ink_assert(c1 != NULL);
+  ink_assert(c2 != NULL);
+  do {
+    if (tolower(*c1) < tolower(*c2)) {
+      if (*c1 == '\0' && *c2 == '.' && *(c2 + 1) == '\0') {
+        break;
+      }
+      return -1;
+    } else if (tolower(*c1) > tolower(*c2)) {
+      if (*c2 == '\0' && *c1 == '.' && *(c1 + 1) == '\0') {
+        break;
+      }
+      return 1;
+    }
+
+    if (*c1 == '\0') {
+      break;
+    }
+    c1++;
+    c2++;
+  } while (1);
+
+  return 0;
+}
+
+// static const unsigned char asciiToTable[256]
+//
+//   Used to Map Legal hostname characters into
+//     to indexes used by char_table to
+//     index strings
+//
+//   Legal hostname characters are 0-9, A-Z, a-z and '-'
+//   '_' is also included although it is not in the spec (RFC 883)
+//
+//   Uppercase and lowercase "a-z" both map to same indexes
+//     since hostnames are not case sensative
+//
+//   Illegal characters map to 255
+//
+static const unsigned char asciiToTable[256] = {
+  255, 255, 255, 255, 255, 255, 255, 255,       // 0 - 7
+  255, 255, 255, 255, 255, 255, 255, 255,       // 8 - 15
+  255, 255, 255, 255, 255, 255, 255, 255,       // 16 - 23
+  255, 255, 255, 255, 255, 255, 255, 255,       // 24 - 31
+  255, 255, 255, 255, 255, 255, 255, 255,       // 32 - 39
+  255, 255, 255, 255, 255, 0, 255, 255, // 40 - 47 ('-')
+  1, 2, 3, 4, 5, 6, 7, 8,       // 48 - 55 (0-7)
+  9, 10, 255, 255, 255, 255, 255, 255,  // 56 - 63 (8-9)
+  255, 11, 12, 13, 14, 15, 16, 17,      // 64 - 71 (A-G)
+  18, 19, 20, 21, 22, 23, 24, 25,       // 72 - 79 (H-O)
+  26, 27, 28, 29, 30, 31, 32, 33,       // 80 - 87 (P-W)
+  34, 35, 36, 255, 255, 255, 255, 37,   // 88 - 95 (X-Z, '_')
+  255, 11, 12, 13, 14, 15, 16, 17,      // 96 - 103 (a-g)
+  18, 19, 20, 21, 22, 23, 24, 25,       // 104 - 111 (h-0)
+  26, 27, 28, 29, 30, 31, 32, 33,       // 112 - 119 (p-w)
+  34, 35, 36, 255, 255, 255, 255, 255,  // 120 - 127 (x-z)
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255,
+  255, 255, 255, 255, 255, 255, 255, 255
+};
+
+// Number of legal characters in the acssiToTable array
+static const int numLegalChars = 38;
+
+// struct charIndex_el
+//
+//   Used by class charIndex.  Forms a single level
+//    in charIndex tree
+//
+struct charIndex_el
+{
+  charIndex_el();
+  ~charIndex_el();
+  HostBranch *branch_array[numLegalChars];
+  charIndex_el *next_level[numLegalChars];
+};
+
+charIndex_el::charIndex_el()
+{
+  memset(branch_array, 0, sizeof(branch_array));
+  memset(next_level, 0, sizeof(next_level));
+}
+
+charIndex_el::~charIndex_el()
+{
+  int i;
+
+  // Recursively delete all the lower levels of the
+  //   data structure
+  for (i = 0; i < numLegalChars; i++) {
+    if (next_level[i] != NULL) {
+      delete next_level[i];
+    }
+  }
+}
+
+// struct charIndexIterInternal
+//
+//  An internal struct to charIndexIterState
+//    Stores the location of an element in
+//    class charIndex
+//
+struct charIndexIterInternal
+{
+  charIndex_el *ptr;
+  int index;
+};
+
+// Used as a default return element for DynArray in
+//   struct charIndexIterState
+static charIndexIterInternal default_iter = { NULL, -1 };
+
+// struct charIndexIterState
+//
+//    struct for the callee to keep interation state
+//      for class charIndex
+//
+struct charIndexIterState
+{
+  charIndexIterState();
+
+  // Where that level we are in interation
+  int cur_level;
+
+  // Where we got the last element from
+  int cur_index;
+  charIndex_el *cur_el;
+
+  //  Queue of the above levels
+    DynArray<charIndexIterInternal> q;
+};
+
+charIndexIterState::charIndexIterState():cur_level(-1), cur_index(-1), cur_el(NULL), q(&default_iter, 6)
+{
+}
+
+
+// class charIndex - A constant time string matcher intended for
+//    short strings in a sparsely populated DNS paritition
+//
+//    Creates a look up table for character in data string
+//
+//    Mapping from character to table index is done by
+//      asciiToTable[]
+//
+//    The illegalKey hash table is side structure for any
+//     entries that contain illegal hostname characters that
+//     we can not index into the normal table
+//
+//    Example: com
+//      c maps to 13, o maps to 25, m maps to 23
+//
+//                             charIndex_el         charIndex_el
+//                             -----------         ------------
+//                           0 |    |    |         |    |     |
+//                           . |    |    |         |    |     |
+//    charIndex_el           . |    |    |         |    |     |
+//    ----------             . |    |    |         |    |     |
+//  0 |   |    |             . |    |    |   |-->23| ptr|  0  |  (ptr is to the
+//  . |   |    |   |-------->25| 0  |   -----|     |    |     |   hostBranch for
+//  . |   |    |   |         . |    |    |         |    |     |   domain com)
+// 13 | 0 |  --|---|         . |    |    |         |    |     |
+//  . |   |    |             . |    |    |         |    |     |
+//  . |   |    |               |    |    |         |    |     |
+//  . |   |    |               |    |    |         |    |     |
+//    |   |    |               -----------         -----------|
+//    |   |    |
+//    |   |    |
+//    |   |    |
+//    |--------|
+//
+//
+//
+class
+  charIndex
+{
+public:
+  charIndex();
+  ~
+  charIndex();
+  void
+  Insert(const char *match_data, HostBranch * toInsert);
+  HostBranch *
+  Lookup(const char *match_data);
+  HostBranch *
+  iter_first(charIndexIterState * s);
+  HostBranch *
+  iter_next(charIndexIterState * s);
+private:
+  charIndex_el *
+    root;
+  InkHashTable *
+    illegalKey;
+};
+
+charIndex::charIndex():illegalKey(NULL)
+{
+  root = new charIndex_el;
+}
+
+charIndex::~charIndex()
+{
+  InkHashTableIteratorState ht_iter;
+  InkHashTableEntry *ht_entry = NULL;
+  HostBranch *tmp;
+
+  delete root;
+
+  // Destroy the illegalKey hashtable if there is one and free
+  //   up all of its values
+  if (illegalKey != NULL) {
+    ht_entry = ink_hash_table_iterator_first(illegalKey, &ht_iter);
+
+    while (ht_entry != NULL) {
+      tmp = (HostBranch *) ink_hash_table_entry_value(illegalKey, ht_entry);
+      ink_assert(tmp != NULL);
+      delete tmp;
+      ht_entry = ink_hash_table_iterator_next(illegalKey, &ht_iter);
+    }
+    ink_hash_table_destroy(illegalKey);
+  }
+}
+
+// void charIndex::Insert(const char* match_data, HostBranch* toInsert)
+//
+//   Places a binding for match_data to toInsert into the index
+//
+void
+charIndex::Insert(const char *match_data, HostBranch * toInsert)
+{
+  unsigned char index;
+  const char *match_start = match_data;
+  charIndex_el *cur = root;
+  charIndex_el *next;
+
+  if (*match_data == '\0') {
+    // Should not happen
+    ink_assert(0);
+    return;
+  }
+
+  while (1) {
+    index = asciiToTable[(unsigned char) (*match_data)];
+
+    // Check to see if our index into table is for an
+    //  'illegal' DNS character
+    if (index == 255) {
+      // Insert into illgals hash table
+      if (illegalKey == NULL) {
+        illegalKey = ink_hash_table_create(InkHashTableKeyType_String);
+      }
+      ink_hash_table_insert(illegalKey, (char *) match_start, toInsert);
+      break;
+    }
+
+    // Check to see if are at the level we supposed be at
+    if (*(match_data + 1) == '\0') {
+      // The slot should always be emtpy, no duplicate
+      //   keys are allowed
+      ink_assert(cur->branch_array[index] == NULL);
+      cur->branch_array[index] = toInsert;
+      break;
+    } else {
+      // We need to find the next level in the table
+
+      next = cur->next_level[index];
+
+      // Check to see if we need to expand the table
+      if (next == NULL) {
+        next = new charIndex_el;
+        cur->next_level[index] = next;
+      }
+      cur = next;
+    }
+    match_data++;
+  }
+}
+
+
+// HostBranch* charIndex::Lookup(const char* match_data)
+//
+//  Searches the charIndex on key match_data
+//    If there is a binding for match_data, returns a pointer to it
+//    otherwise a NULL pointer is returned
+//
+HostBranch *
+charIndex::Lookup(const char *match_data)
+{
+  unsigned char index;
+  charIndex_el *cur = root;
+  void *hash_lookup;
+  const char *match_start = match_data;
+
+  if (root == NULL || *match_data == '\0') {
+    return NULL;
+  }
+
+  while (1) {
+
+    index = asciiToTable[(unsigned char) (*match_data)];
+
+    // Check to see if our index into table is for an
+    //  'illegal' DNS character
+    if (index == 255) {
+      if (illegalKey == NULL) {
+        return NULL;
+      } else {
+        if (ink_hash_table_lookup(illegalKey, (char *) match_start, &hash_lookup)) {
+          return (HostBranch *) hash_lookup;
+        } else {
+          return NULL;
+        }
+      }
+    }
+    // Check to see if we are looking for the next level or
+    //    a HostBranch
+    if (*(match_data + 1) == '\0') {
+      return cur->branch_array[index];
+    } else {
+      cur = cur->next_level[index];
+
+      if (cur == NULL) {
+        return NULL;
+      }
+    }
+
+    match_data++;
+  }
+}
+
+//
+// HostBranch* charIndex::iter_next(charIndexIterState* s)
+//
+//    Initialize iterator state and returns the first element
+//     found in the charTable.  If none is found, NULL
+//     is returned
+//
+HostBranch *
+charIndex::iter_first(charIndexIterState * s)
+{
+  s->cur_level = 0;
+  s->cur_index = -1;
+  s->cur_el = root;
+
+  return iter_next(s);
+}
+
+//
+// HostBranch* charIndex::iter_next(charIndexIterState* s)
+//
+//    Finds the next element in the char index and returns
+//      a pointer to it.  If there are no more elements, NULL
+//      is returned
+//
+HostBranch *
+charIndex::iter_next(charIndexIterState * s)
+{
+  int index;
+  charIndex_el *current_el = s->cur_el;
+  intptr_t level = s->cur_level;
+  charIndexIterInternal stored_state;
+  HostBranch *r = NULL;
+  bool first_element;
+
+  // bool first_element is used to tell if first elemente
+  //  pointed to by s has already been returned to caller
+  //  it has unless we are being called from iter_first
+  if (s->cur_index < 0) {
+    first_element = false;
+    index = s->cur_index + 1;
+  } else {
+    first_element = true;
+    index = s->cur_index;
+  }
+
+  while (1) {
+
+    // Check to see if we need to go back up a level
+    if (index >= numLegalChars) {
+      if (level <= 0) {
+        // No more levels so bail out
+        break;
+      } else {
+        // Go back up to a stored level
+        stored_state = s->q[level - 1];
+        ink_assert(stored_state.ptr != NULL);
+        ink_assert(stored_state.index >= 0);
+        level--;
+        current_el = stored_state.ptr;
+        index = stored_state.index + 1;
+      }
+    } else {
+      // Check to see if there is something to return
+      //
+      //  Note: we check for something to return before a descending
+      //    a level so that when we come back up we will
+      //    be done with this index
+      //
+      if (current_el->branch_array[index] != NULL && first_element == false) {
+        r = current_el->branch_array[index];
+        s->cur_level = level;
+        s->cur_index = index;
+        s->cur_el = current_el;
+        break;
+      } else if (current_el->next_level[index] != NULL) {
+        // There is a lower level to iterate over, store our
+        //   current state and descend
+        stored_state.ptr = current_el;
+        stored_state.index = index;
+        s->q(level) = stored_state;
+        current_el = current_el->next_level[index];
+        index = 0;
+        level++;
+      } else {
+        // Nothing here so advance to next index
+        index++;
+      }
+    }
+    first_element = false;
+  }
+
+  return r;
+}
+
+// class hostArray
+//
+//   Is a fixed size array for holding HostBrach*
+//   Allows only sequential access to data
+//
+
+// Since the only iter state is an index into the
+//   array typedef it
+typedef int hostArrayIterState;
+
+class hostArray
+{
+public:
+  hostArray();
+  ~hostArray();
+  bool Insert(const char *match_data_in, HostBranch * toInsert);
+  HostBranch *Lookup(const char *match_data_in, bool bNotProcess);
+  HostBranch *iter_first(hostArrayIterState * s, char **key = NULL);
+  HostBranch *iter_next(hostArrayIterState * s, char **key = NULL);
+private:
+  int num_el;                   // number of elements currently in the array
+  HostBranch *branch_array[HOST_ARRAY_MAX];
+  char *match_data[HOST_ARRAY_MAX];
+};
+
+hostArray::hostArray():num_el(0)
+{
+  memset(branch_array, 0, sizeof(branch_array));
+  memset(match_data, 0, sizeof(match_data));
+}
+
+hostArray::~hostArray()
+{
+  for (int i = 0; i < num_el; i++) {
+    ink_assert(branch_array[i] != NULL);
+    ink_assert(match_data[i] != NULL);
+    ats_free(match_data[i]);
+  }
+}
+
+// bool hostArray::Insert(const char* match_data_in, HostBranch* toInsert)
+//
+//    Places toInsert into the array with key match_data if there
+//     is adequate space, in which case true is returned
+//    If space is inadequate, false is returned and nothing is inserted
+//
+bool
+hostArray::Insert(const char *match_data_in, HostBranch * toInsert)
+{
+  if (num_el >= HOST_ARRAY_MAX) {
+    return false;
+  } else {
+    branch_array[num_el] = toInsert;
+    match_data[num_el] = ats_strdup(match_data_in);
+    num_el++;
+    return true;
+  }
+}
+
+// HostBranch* hostArray::Lookup(const char* match_data_in)
+//
+//   Looks for key match_data_in.  If a binding is found,
+//     returns HostBranch* found to the key, otherwise
+//     NULL is returned
+//
+HostBranch *
+hostArray::Lookup(const char *match_data_in, bool bNotProcess)
+{
+  HostBranch *r = NULL;
+  char *pMD;
+
+  for (int i = 0; i < num_el; i++) {
+    pMD = match_data[i];
+
+    if (bNotProcess && '!' == *pMD) {
+
+      char *cp = ++pMD;
+      if ('\0' == *cp)
+        continue;
+
+      if (strcmp(cp, match_data_in) != 0) {
+        r = branch_array[i];
+      } else {
+        continue;
+      }
+    }
+
+    else if (strcmp(match_data[i], match_data_in) == 0) {
+      r = branch_array[i];
+      break;
+    }
+  }
+  return r;
+}
+
+// HostBranch* hostArray::iter_first(hostArrayIterState* s) {
+//
+//   Initilizes s and returns the first element or
+//     NULL if no elements exist
+//
+HostBranch *
+hostArray::iter_first(hostArrayIterState * s, char **key)
+{
+  *s = -1;
+  return iter_next(s, key);
+}
+
+// HostBranch* hostArray::iter_next(hostArrayIterState* s) {
+//
+//    Returns the next element in the hostArray or
+//      NULL if none exist
+//
+HostBranch *
+hostArray::iter_next(hostArrayIterState * s, char **key)
+{
+  (*s)++;
+
+  if (*s < num_el) {
+    if (key != NULL) {
+      *key = match_data[*s];
+    }
+    return branch_array[*s];
+  } else {
+    return NULL;
+  }
+}
+
+// maps enum LeafType to strings
+const char *LeafTypeStr[] = {
+  "Leaf Invalid",
+  "Host (Partial)",
+  "Host (Full)",
+  "Domain (Full)",
+  "Domain (Partial)"
+};
+
+static int negative_one = -1;
+
+HostBranch::HostBranch():level(0), type(HOST_TERMINAL), next_level(NULL), leaf_indexs(&negative_one, 1)
+{
+}
+
+// HostBranch::~HostBranch()
+//
+//   Recursive delete all host branches below us
+//
+HostBranch::~HostBranch()
+{
+
+  // Hash Iteration
+  InkHashTable *ht;
+  InkHashTableIteratorState ht_iter;
+  InkHashTableEntry *ht_entry = NULL;
+
+  // charIndex Iteration
+  charIndexIterState ci_iter;
+  charIndex *ci;
+
+  // hostArray Iteration
+  hostArray *ha;
+  hostArrayIterState ha_iter;
+
+  HostBranch *lower_branch;
+
+  switch (type) {
+  case HOST_TERMINAL:
+    ink_assert(next_level == NULL);
+    break;
+  case HOST_HASH:
+    ink_assert(next_level != NULL);
+    ht = (InkHashTable *) next_level;
+    ht_entry = ink_hash_table_iterator_first(ht, &ht_iter);
+
+    while (ht_entry != NULL) {
+      lower_branch = (HostBranch *) ink_hash_table_entry_value(ht, ht_entry);
+      delete lower_branch;
+      ht_entry = ink_hash_table_iterator_next(ht, &ht_iter);
+    }
+    ink_hash_table_destroy(ht);
+    break;
+  case HOST_INDEX:
+    ink_assert(next_level != NULL);
+    ci = (charIndex *) next_level;
+    lower_branch = ci->iter_first(&ci_iter);
+    while (lower_branch != NULL) {
+      delete lower_branch;
+      lower_branch = ci->iter_next(&ci_iter);
+    }
+    delete ci;
+    break;
+  case HOST_ARRAY:
+    ink_assert(next_level != NULL);
+    ha = (hostArray *) next_level;
+    lower_branch = ha->iter_first(&ha_iter);
+    while (lower_branch != NULL) {
+      delete lower_branch;
+      lower_branch = ha->iter_next(&ha_iter);
+    }
+    delete ha;
+    break;
+  }
+}
+
+HostLookup::HostLookup(const char *name):
+leaf_array(NULL),
+array_len(-1),
+num_el(-1),
+matcher_name(name)
+{
+
+  root = new HostBranch;
+  root->level = 0;
+  root->type = HOST_TERMINAL;
+  root->next_level = NULL;
+}
+
+HostLookup::~HostLookup()
+{
+
+  if (leaf_array != NULL) {
+    // Free up the match strings
+    for (int i = 0; i < num_el; i++) {
+      ats_free(leaf_array[i].match);
+    }
+    delete[]leaf_array;
+  }
+
+  delete root;
+}
+
+static void
+empty_print_fn(void */* opaque_data ATS_UNUSED */)
+{
+}
+
+void
+HostLookup::Print()
+{
+  Print(empty_print_fn);
+}
+
+void
+HostLookup::Print(HostLookupPrintFunc f)
+{
+  PrintHostBranch(root, f);
+}
+
+//
+// void HostLookup::PrintHostBranch(HostBranch* hb, HostLookupPrintFunc f)
+//
+//   Recursively traverse the matching tree rooted at arg hb
+//     and print out each element
+//
+void
+HostLookup::PrintHostBranch(HostBranch * hb, HostLookupPrintFunc f)
+{
+
+  // Hash iteration
+  InkHashTable *ht;
+  InkHashTableIteratorState ht_iter;
+  InkHashTableEntry *ht_entry = NULL;
+
+  // charIndex Iteration
+  charIndexIterState ci_iter;
+  charIndex *ci;
+
+  // hostArray Iteration
+  hostArray *h_array;
+  hostArrayIterState ha_iter;
+
+  HostBranch *lower_branch;
+  intptr_t curIndex;
+  intptr_t i;                        // Loop var
+
+  for (i = 0; i < hb->leaf_indexs.length(); i++) {
+    curIndex = hb->leaf_indexs[i];
+    printf("\t\t%s for %s\n", LeafTypeStr[leaf_array[curIndex].type], leaf_array[curIndex].match);
+    f(leaf_array[curIndex].opaque_data);
+  }
+
+  switch (hb->type) {
+  case HOST_TERMINAL:
+    ink_assert(hb->next_level == NULL);
+    break;
+  case HOST_HASH:
+    ink_assert(hb->next_level != NULL);
+    ht = (InkHashTable *) hb->next_level;
+    ht_entry = ink_hash_table_iterator_first(ht, &ht_iter);
+
+    while (ht_entry != NULL) {
+      lower_branch = (HostBranch *) ink_hash_table_entry_value(ht, ht_entry);
+      PrintHostBranch(lower_branch, f);
+      ht_entry = ink_hash_table_iterator_next(ht, &ht_iter);
+    }
+    break;
+  case HOST_INDEX:
+    ink_assert(hb->next_level != NULL);
+    ci = (charIndex *) hb->next_level;
+    lower_branch = ci->iter_first(&ci_iter);
+    while (lower_branch != NULL) {
+      PrintHostBranch(lower_branch, f);
+      lower_branch = ci->iter_next(&ci_iter);
+    }
+    break;
+  case HOST_ARRAY:
+    ink_assert(hb->next_level != NULL);
+    h_array = (hostArray *) hb->next_level;
+    lower_branch = h_array->iter_first(&ha_iter);
+    while (lower_branch != NULL) {
+      PrintHostBranch(lower_branch, f);
+      lower_branch = h_array->iter_next(&ha_iter);
+    }
+    break;
+  }
+}
+
+//
+// HostBranch* HostLookup::TableNewLevel(HostBranch* from, const char* level_data)
+//
+//    Creates the next level structure in arg from
+//       Creates a HostBranch for level_data, inserts it in to the
+//         the next_level structure and returns a pointer to the new
+//         HostBranch
+//
+HostBranch *
+HostLookup::TableNewLevel(HostBranch * from, const char *level_data)
+{
+  hostArray *new_ha_table;
+  charIndex *new_ci_table;
+
+  ink_assert(from->type == HOST_TERMINAL);
+
+  // Use the charIndex for high speed matching at the first level of
+  //   the table.  The first level is short strings, ie: com, edu, jp, fr
+  if (from->level == 0) {
+    new_ci_table = new charIndex;
+    from->type = HOST_INDEX;
+    from->next_level = new_ci_table;
+  } else {
+    new_ha_table = new hostArray;
+    from->type = HOST_ARRAY;
+    from->next_level = new_ha_table;
+  }
+
+  return InsertBranch(from, level_data);
+}
+
+
+//
+// HostBranch* HostLookup::InsertBranch(HostBranch* insert_to, const char* level_data)
+//
+//
+//    Abstrction to place a new node for level_data below node
+//      insert to.  Inserts into any of the data types used by
+//      by class HostMatcher
+//
+HostBranch *
+HostLookup::InsertBranch(HostBranch * insert_in, const char *level_data)
+{
+
+  // Variables for moving an array into a hash table after it
+  //   gets too big
+  //
+  hostArray *ha;
+  hostArrayIterState ha_iter;
+  HostBranch *tmp;
+  char *key = NULL;
+  InkHashTable *new_ht;
+
+
+  HostBranch *new_branch = new HostBranch;
+  new_branch->type = HOST_TERMINAL;
+  new_branch->level = insert_in->level + 1;
+  new_branch->next_level = NULL;
+
+  switch (insert_in->type) {
+  case HOST_TERMINAL:
+    // Should not happen
+    ink_assert(0);
+    delete new_branch;
+    break;
+  case HOST_HASH:
+    ink_hash_table_insert((InkHashTable *) insert_in->next_level, (char *) level_data, new_branch);
+    break;
+  case HOST_INDEX:
+    ((charIndex *) insert_in->next_level)->Insert(level_data, new_branch);
+    break;
+  case HOST_ARRAY:
+    if (((hostArray *) insert_in->next_level)->Insert(level_data, new_branch) == false) {
+
+      // The array is out of space, time to move to a hash table
+      ha = (hostArray *) insert_in->next_level;
+      new_ht = ink_hash_table_create(InkHashTableKeyType_String);
+      ink_hash_table_insert(new_ht, (char *) level_data, new_branch);
+
+      // Iterate through the existing elements in the array and
+      //  stuff them into the hash table
+      tmp = ha->iter_first(&ha_iter, &key);
+      ink_assert(tmp != NULL);
+      while (tmp != NULL) {
+        ink_assert(key != NULL);
+        ink_hash_table_insert(new_ht, key, tmp);
+        tmp = ha->iter_next(&ha_iter, &key);
+      }
+
+      // Ring out the old, ring in the new
+      delete ha;
+      insert_in->next_level = new_ht;
+      insert_in->type = HOST_HASH;
+    }
+    break;
+
+  }
+
+  return new_branch;
+}
+
+// HostBranch* HostLookup::FindNextLevel(HostBranch* from,
+//                                       const char* level_data)
+//
+//   Searches in the branch for  the next level down in the search
+//     structure bound to level data
+//   If found returns a pointer to the next level HostBranch,
+//    otherwise returns NULL
+//
+HostBranch *
+HostLookup::FindNextLevel(HostBranch * from, const char *level_data, bool bNotProcess)
+{
+
+  HostBranch *r = NULL;
+  InkHashTable *hash;
+  charIndex *ci_table;
+  hostArray *ha_table;
+  void *lookup;
+
+  switch (from->type) {
+  case HOST_TERMINAL:
+    // Should not happen
+    ink_assert(0);
+    return NULL;
+  case HOST_HASH:
+    hash = (InkHashTable *) from->next_level;
+    ink_assert(hash != NULL);
+    if (ink_hash_table_lookup(hash, (char *) level_data, &lookup)) {
+      r = (HostBranch *) lookup;
+    } else {
+      r = NULL;
+    }
+    break;
+  case HOST_INDEX:
+    ci_table = (charIndex *) from->next_level;
+    ink_assert(ci_table != NULL);
+    r = ci_table->Lookup(level_data);
+    break;
+  case HOST_ARRAY:
+    ha_table = (hostArray *) from->next_level;
+    ink_assert(ha_table != NULL);
+    r = ha_table->Lookup(level_data, bNotProcess);
+    break;
+  }
+  return r;
+}
+
+// void HostLookup::TableInsert(const char* match_data, int index)
+//
+//   Insert the match data, index pair into domain/search table
+//
+//   arg index is the index into both Data and HostLeaf array for
+//    the elements corresponding to match_data
+//
+void
+HostLookup::TableInsert(const char *match_data, int index, bool domain_record)
+{
+  HostBranch *cur = this->root;
+  HostBranch *next;
+  char *match_copy = ats_strdup(match_data);
+  Tokenizer match_tok(".");
+  int numTok;
+  int i;
+
+  LowerCaseStr(match_copy);
+  numTok = match_tok.Initialize(match_copy, SHARE_TOKS);
+
+  // Traverse down the search structure until we either
+  //       Get beyond the fixed number depth of the host table
+  //  OR   We reach the level where the match stops
+  //
+  for (i = 0; i < HOST_TABLE_DEPTH; i++) {
+
+    // Check to see we need to stop at the current level
+    if (numTok == cur->level) {
+      break;
+    }
+
+    if (cur->next_level == NULL) {
+      cur = TableNewLevel(cur, match_tok[numTok - i - 1]);
+    } else {
+      next = FindNextLevel(cur, match_tok[numTok - i - 1]);
+      if (next == NULL) {
+        cur = InsertBranch(cur, match_tok[numTok - i - 1]);
+      } else {
+        cur = next;
+      }
+    }
+  }
+
+  // Update the leaf type.  There are three types:
+  //     HOST_PARTIAL - Indicates that part of the hostname name
+  //         was not matched by traversin the search structure since
+  //         it had too elements.  A comparison must be done at the
+  //         leaf node to make sure we have a match
+  //     HOST_COMPLETE - Indicates that the entire domain name
+  //         in the match_data was matched by traversing the search
+  //         structure, no further comparison is necessary
+  //
+  //     DOMAIN_COMPLETE - Indicates that the entire domain name
+  //         in the match_data was matched by traversing the search
+  //         structure, no further comparison is necessary
+  //     DOMAIN_PARTIAL - Indicates that part of the domain name
+  //         was not matched by traversin the search structure since
+  //         it had too elements.  A comparison must be done at the
+  //         leaf node to make sure we have a match
+  if (domain_record == false) {
+    if (numTok > HOST_TABLE_DEPTH) {
+      leaf_array[index].type = HOST_PARTIAL;
+    } else {
+      leaf_array[index].type = HOST_COMPLETE;
+    }
+  } else {
+    if (numTok > HOST_TABLE_DEPTH) {
+      leaf_array[index].type = DOMAIN_PARTIAL;
+    } else {
+      leaf_array[index].type = DOMAIN_COMPLETE;
+    }
+  }
+
+  // Place the index in to leaf array into the match list for this
+  //   HOST_BRANCH
+  cur->leaf_indexs(cur->leaf_indexs.length()) = index;
+
+  ats_free(match_copy);
+}
+
+// bool HostLookup::MatchArray(HostLookupState* s, void**opaque_ptr, DynArray<int>& array,
+//                             bool host_done)
+//
+//  Helper function to iterate throught arg array and update Result
+//    for each element in arg array
+//
+//  host_done should be passed as true if this call represents the all fields
+//     in the matched against hostname being consumed.  Example: for www.example.com
+//     this would be true for the call matching against the "www", but
+//     neither of the prior two fields, "inktomi" and "com"
+//
+
+bool
+HostLookup::MatchArray(HostLookupState * s, void **opaque_ptr, DynArray<int>&array, bool host_done)
+{
+  intptr_t index;
+  intptr_t i;
+
+  for (i = s->array_index + 1; i < array.length(); i++) {
+    index = array[i];
+
+    switch (leaf_array[index].type) {
+    case HOST_PARTIAL:
+      if (hostcmp(s->hostname, leaf_array[index].match) == 0) {
+        *opaque_ptr = leaf_array[index].opaque_data;
+        s->array_index = i;
+        return true;
+      }
+      break;
+    case HOST_COMPLETE:
+      // We have to have consumed the whole hostname for this to match
+      //   so that we do not match a rule for "example.com" to
+      //   "www.example.com
+      //
+      if (host_done == true) {
+        *opaque_ptr = leaf_array[index].opaque_data;
+        s->array_index = i;
+        return true;
+      }
+      break;
+    case DOMAIN_PARTIAL:
+      if (domaincmp(s->hostname, leaf_array[index].match) == false) {
+        break;
+      }
+      // FALL THROUGH
+    case DOMAIN_COMPLETE:
+      *opaque_ptr = leaf_array[index].opaque_data;
+      s->array_index = i;
+      return true;
+    case LEAF_INVALID:
+      // Should not get here
+      ink_assert(0);
+      break;
+    }
+  }
+
+  s->array_index = i;
+  return false;
+}
+
+
+// bool HostLookup::MatchFirst(const char* host, HostLookupState* s, void** opaque_ptr)
+//
+//
+bool
+HostLookup::MatchFirst(const char *host, HostLookupState * s, void **opaque_ptr)
+{
+  char *last_dot = NULL;
+
+  s->cur = root;
+  s->table_level = 0;
+  s->array_index = -1;
+  s->hostname = host ? host : "";
+  s->host_copy = ats_strdup(s->hostname);
+  LowerCaseStr(s->host_copy);
+
+  // Find the top level domain in the host copy
+  s->host_copy_next = s->host_copy;
+  while (*s->host_copy_next != '\0') {
+    if (*s->host_copy_next == '.') {
+      last_dot = s->host_copy_next;
+    }
+    s->host_copy_next++;
+  }
+
+  if (last_dot == NULL) {
+    // Must be an unqualified hostname, no dots
+    s->host_copy_next = s->host_copy;
+  } else {
+    s->host_copy_next = last_dot + 1;
+  }
+
+  return MatchNext(s, opaque_ptr);
+}
+
+// bool HostLookup::MatchNext(HostLookupState* s, void** opaque_ptr)
+//
+//  Searches our tree and updates argresult for each element matching
+//    arg hostname
+//
+bool
+HostLookup::MatchNext(HostLookupState * s, void **opaque_ptr)
+{
+  HostBranch *cur = s->cur;
+
+  // Check to see if there is any work to be done
+  if (num_el <= 0) {
+    return false;
+  }
+
+  while (s->table_level <= HOST_TABLE_DEPTH) {
+
+    if (MatchArray(s, opaque_ptr, cur->leaf_indexs, (s->host_copy_next == NULL))) {
+      return true;
+    }
+    // Check to see if we run out of tokens in the hostname
+    if (s->host_copy_next == NULL) {
+      break;
+    }
+    // Check to see if there are any lower levels
+    if (cur->type == HOST_TERMINAL) {
+      break;
+    }
+
+    cur = FindNextLevel(cur, s->host_copy_next, true);
+
+    if (cur == NULL) {
+      break;
+    } else {
+      s->cur = cur;
+      s->array_index = -1;
+      s->table_level++;
+
+      // Find the next part of the hostname to process
+      if (s->host_copy_next <= s->host_copy) {
+        // Nothing left
+        s->host_copy_next = NULL;
+      } else {
+
+        // Back up to period ahead of us and axe it
+        s->host_copy_next--;
+        ink_assert(*s->host_copy_next == '.');
+        *s->host_copy_next = '\0';
+
+        s->host_copy_next--;
+
+        while (1) {
+
+          if (s->host_copy_next <= s->host_copy) {
+            s->host_copy_next = s->host_copy;
+            break;
+          }
+          // Check for our stop.  If we hit a period, we want
+          //  the our portion of the hostname starts one character
+          //  after it
+          if (*s->host_copy_next == '.') {
+            s->host_copy_next++;
+            break;
+          }
+
+          s->host_copy_next--;
+        }
+      }
+    }
+  }
+
+  return false;
+}
+
+// void HostLookup::AllocateSpace(int num_entries)
+//
+//   Allocate the leaf array structure
+//
+void
+HostLookup::AllocateSpace(int num_entries)
+{
+  // Should not have been allocated before
+  ink_assert(array_len == -1);
+
+  leaf_array = new HostLeaf[num_entries];
+  memset(leaf_array, 0, sizeof(HostLeaf) * num_entries);
+
+  array_len = num_entries;
+  num_el = 0;
+}
+
+// void HostLookup::NewEntry(const char* match_data, bool domain_record, void* opaque_data_in)
+//
+//   Insert a new element in to the table
+//
+void
+HostLookup::NewEntry(const char *match_data, bool domain_record, void *opaque_data_in)
+{
+
+  // Make sure space has been allocated
+  ink_assert(num_el >= 0);
+  ink_assert(array_len >= 0);
+
+  // Make sure we do not overrun the array;
+  ink_assert(num_el < array_len);
+
+  leaf_array[num_el].match = ats_strdup(match_data);
+  leaf_array[num_el].opaque_data = opaque_data_in;
+
+  if ('!' != *(leaf_array[num_el].match)) {
+    leaf_array[num_el].len = strlen(match_data);
+    leaf_array[num_el].isNot = false;
+  } else {
+    leaf_array[num_el].len = strlen(match_data) - 1;
+    leaf_array[num_el].isNot = true;
+  }
+
+  TableInsert(match_data, num_el, domain_record);
+  num_el++;
+}
diff --git a/lib/ts/HostLookup.h b/lib/ts/HostLookup.h
new file mode 100644
index 00000000..d5f091fe
--- /dev/null
+++ b/lib/ts/HostLookup.h
@@ -0,0 +1,130 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  HostLookup.h - Interface to genernal purpose matcher
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _HOST_LOOKUP_H_
+#define _HOST_LOOKUP_H_
+// HostLookup  constantss
+const int HOST_TABLE_DEPTH = 3; // Controls the max number of levels in the logical tree
+const int HOST_ARRAY_MAX = 8;   // Sets the fixed array size
+
+//
+//  Begin Host Lookup Helper types
+//
+enum HostNodeType
+{ HOST_TERMINAL, HOST_HASH, HOST_INDEX, HOST_ARRAY };
+enum LeafType
+{ LEAF_INVALID, HOST_PARTIAL, HOST_COMPLETE,
+  DOMAIN_COMPLETE, DOMAIN_PARTIAL
+};
+
+// The data in the HostMatcher tree is pointers to HostBranches.
+//   No duplicates keys permitted in the tree.  To handle multiple
+//   data items bound the same key, the HostBranch has the lead_indexs
+//   array which stores pointers (in the form of array indexes) to
+//   HostLeaf structs
+//
+// There is HostLeaf struct for each data item put into the
+//   table
+//
+struct HostLeaf
+{
+  LeafType type;
+  char *match;                  // Contains a copy of the match data
+  int len;                      // length of the data
+  bool isNot;                   // used by any fasssst path ...
+  void *opaque_data;            // Data associated with this leaf
+};
+
+struct HostBranch
+{
+  HostBranch();
+  ~HostBranch();
+  int level;                    // what level in the tree.  the root is level 0
+  HostNodeType type;            // tells what kind of data structure is next_level is
+  void *next_level;             // opaque pointer to lookup structure
+    DynArray<int>leaf_indexs;        // pointers HostLeaf(s)
+};
+
+typedef void (*HostLookupPrintFunc) (void *opaque_data);
+//
+//  End Host Lookup Helper types
+//
+
+struct HostLookupState
+{
+  HostLookupState()
+    : cur(NULL), table_level(0), array_index(0), hostname(NULL), host_copy(NULL), host_copy_next(NULL)
+  { }
+
+  ~HostLookupState() {
+    ats_free(host_copy);
+  }
+
+  HostBranch *cur;
+  int table_level;
+  int array_index;
+  const char *hostname;
+  char *host_copy;              // request lower-cased host name copy
+  char *host_copy_next;         // ptr to part of host_copy for next use
+};
+
+class HostLookup
+{
+public:
+  HostLookup(const char *name);
+   ~HostLookup();
+  void NewEntry(const char *match_data, bool domain_record, void *opaque_data_in);
+  void AllocateSpace(int num_entries);
+  bool Match(const char *host);
+  bool Match(const char *host, void **opaque_ptr);
+  bool MatchFirst(const char *host, HostLookupState * s, void **opaque_ptr);
+  bool MatchNext(HostLookupState * s, void **opaque_ptr);
+  void Print(HostLookupPrintFunc f);
+  void Print();
+  HostLeaf *getLArray()
+  {
+    return leaf_array;
+  };
+private:
+  void TableInsert(const char *match_data, int index, bool domain_record);
+  HostBranch *TableNewLevel(HostBranch * from, const char *level_data);
+  HostBranch *InsertBranch(HostBranch * insert_in, const char *level_data);
+  HostBranch *FindNextLevel(HostBranch * from, const char *level_data, bool bNotProcess = false);
+  bool MatchArray(HostLookupState * s, void **opaque_ptr, DynArray<int>&array, bool host_done);
+  void PrintHostBranch(HostBranch * hb, HostLookupPrintFunc f);
+  HostBranch *root;             // The top of the search tree
+  HostLeaf *leaf_array;         // array of all leaves in tree
+  int array_len;                // the length of the arrays
+  int num_el;                   // the numbe of itmems in the tree
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+};
+
+
+#endif
diff --git a/lib/ts/INK_MD5.h b/lib/ts/INK_MD5.h
new file mode 100644
index 00000000..b046fa6b
--- /dev/null
+++ b/lib/ts/INK_MD5.h
@@ -0,0 +1,149 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _INK_MD5_h_
+#define	_INK_MD5_h_
+
+#include "ink_code.h"
+#include "ink_defs.h"
+
+struct INK_MD5
+{
+
+  // This union is needed to fix strict-aliasing warnings.
+  // It is anonymous so that the 'b' member can remain in
+  // the top level scope of the struct. This is because
+  // other code touches that directly. Once that code is
+  // also fixed we can make this an Alias64 type from
+  // ink_align.h
+  union
+  {
+    uint64_t b[2];   // Legacy placeholder
+    uint64_t u64[2];
+    uint32_t u32[4];
+    uint8_t  u8[16];
+  };
+
+  const INK_MD5 & operator =(const INK_MD5 & md5)
+  {
+    u64[0] = md5.u64[0];
+    u64[1] = md5.u64[1];
+    return md5;
+  }
+  uint32_t word(int i)
+  {
+    return u32[i];
+  }
+  unsigned char byte(int i)
+  {
+    return u8[i];
+  }
+  INK_MD5 & loadFromBuffer(char *md5_buf) {
+    memcpy((void *) u8, (void *) md5_buf, 16);
+    return (*this);
+  }
+  INK_MD5 & storeToBuffer(char *md5_buf) {
+    memcpy((void *) md5_buf, (void *) u8, 16);
+    return (*this);
+  }
+  INK_MD5 & operator =(char *md5) {
+    return (loadFromBuffer(md5));
+  }
+  INK_MD5 & operator =(unsigned char *md5) {
+    return (loadFromBuffer((char *) md5));
+  }
+
+  char *toStr(char *md5_str)
+  {
+    return (char *) memcpy((void *) md5_str, (void *) u8, 16);
+  }
+  void encodeBuffer(unsigned char *buffer, int len)
+  {
+    ink_code_md5(buffer, len, u8);
+  }
+  void encodeBuffer(const char *buffer, int len)
+  {
+    encodeBuffer((unsigned char *) buffer, len);
+  }
+  char *str()
+  {
+    return ((char *) u8);
+  }
+  char *toHexStr(char hex_md5[33])
+  {
+    return (ink_code_md5_stringify_fast(hex_md5, str()));
+  }
+  void set(INK_MD5 & md5)
+  {
+    loadFromBuffer((char *) md5.u8);
+  }
+  void set(INK_MD5 * md5)
+  {
+    loadFromBuffer((char *) md5->u8);
+  }
+  void set(char *p)
+  {
+    loadFromBuffer(p);
+  }
+  void set(uint64_t a1, uint64_t a2)
+  {
+    u64[0] = a1;
+    u64[1] = a2;
+  }
+  char *string(char buf[33])
+  {
+    char hex_digits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+    int i, j;
+
+    for (i = 0, j = 0; i < 16; i += 1, j += 2) {
+      buf[j + 0] = hex_digits[u8[i] >> 4];
+      buf[j + 1] = hex_digits[u8[i] & 0xF];
+    }
+    buf[32] = '\0';
+    return buf;
+  }
+
+  uint64_t fold() const
+  {
+    return (u64[0] ^ u64[1]);
+  }
+
+  uint64_t operator[] (int i) const
+  {
+    return u64[i];
+  }
+  bool operator==(INK_MD5 const& md5)
+  {
+    return u64[0] == md5.u64[0] && u64[1] == md5.u64[1];
+  }
+  INK_MD5() {
+    u64[0] = 0;
+    u64[1] = 0;
+  }
+  INK_MD5(uint64_t a1, uint64_t a2) {
+    u64[0] = a1;
+    u64[1] = a2;
+  }
+};
+
+#endif
diff --git a/lib/ts/I_Layout.h b/lib/ts/I_Layout.h
new file mode 100644
index 00000000..7b36dcbc
--- /dev/null
+++ b/lib/ts/I_Layout.h
@@ -0,0 +1,107 @@
+/** @file
+
+  Layout
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Part of the utils library which contains classes that use multiple
+  components of the IO-Core to implement some useful functionality. The
+  classes also serve as good examples of how to use the IO-Core.
+
+ */
+
+#ifndef _I_Layout_h
+#define _I_Layout_h
+
+/**
+  The Layout is a simple place holder for the distribution layout.
+
+ */
+struct Layout
+{
+  char *prefix;
+  char *exec_prefix;
+  char *bindir;
+  char *sbindir;
+  char *sysconfdir;
+  char *datadir;
+  char *includedir;
+  char *libdir;
+  char *libexecdir;
+  char *localstatedir;
+  char *sharedstatedir;
+  char *runtimedir;
+  char *logdir;
+  char *mandir;
+  char *infodir;
+  char *cachedir;
+
+  Layout(const char *prefix = 0);
+   ~Layout();
+
+  /**
+   Return file path relative to Layout->prefix
+   Memory is allocated, so use ats_free() when no longer needed
+
+  */
+  char *relative(const char *file);
+
+  /**
+   Return file path relative to Layout->prefix
+   Store the path to buf. The buf should be large eough to store
+   PATH_NAME_MAX characters
+
+   */
+  void relative(char *buf, size_t bufsz, const char *file);
+
+  /**
+   Return file path relative to dir
+   Memory is allocated, so use ats_free() when no longer needed
+   Example usage: Layout::relative_to(default_layout()->sysconfdir, "foo.bar");
+
+  */
+  static char *relative_to(const char *dir, const char *file);
+
+  /**
+   Return file path relative to dir
+   Store the path to buf. The buf should be large eough to store
+   PATH_NAME_MAX characters
+   Example usage: Layout::relative_to(default_layout()->sysconfdir, "foo.bar");
+
+  */
+  static void relative_to(char *buf, size_t bufsz, const char *dir, const char *file);
+
+  /**
+   Creates a Layout Object with the given prefix.  If no
+   prefix is given, the prefix defaults to the one specified
+   at the compile time.
+
+  */
+  static void create(const char *prefix = 0);
+
+  /**
+   Returns the Layout object created by create_default_layout().
+
+  */
+  static Layout *get();
+};
+
+#endif
diff --git a/lib/ts/I_Version.h b/lib/ts/I_Version.h
new file mode 100644
index 00000000..adfdd57d
--- /dev/null
+++ b/lib/ts/I_Version.h
@@ -0,0 +1,100 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+
+  Version.h
+
+
+  **************************************************************************/
+
+#ifndef _Version_h
+#define _Version_h
+
+struct VersionNumber
+{
+  short int ink_major;          // incompatible change
+  short int ink_minor;          // minor change, not incompatible
+};
+
+struct Version
+{
+  VersionNumber cacheDB;
+  VersionNumber cacheDir;
+  VersionNumber clustering;
+  VersionNumber clustering_min;
+};
+
+enum ModuleVersion
+{ MODULE_VERSION_MIN = 0, MODULE_VERSION_MAX = 2147483647 };
+enum ModuleHeaderType
+{ PUBLIC_MODULE_HEADER, PRIVATE_MODULE_HEADER };
+
+#define makeModuleVersion(_major_version, _minor_version, _module_type) \
+((ModuleVersion)((((int)_module_type) << 24)   + \
+                 (((int)_major_version) << 16) + \
+                 (((int)_minor_version) << 8)))
+
+#define majorModuleVersion(_v) ((((int)_v) >> 16) & 255)
+#define minorModuleVersion(_v) ((((int)_v) >> 8) & 255)
+#define moduleVersionType(_v)  ((((int)_v) >> 24) & 127)
+
+static inline int
+checkModuleVersion(ModuleVersion userVersion, ModuleVersion libVersion)
+{
+  if (moduleVersionType(userVersion) == PUBLIC_MODULE_HEADER) {
+    if ((majorModuleVersion(userVersion) != majorModuleVersion(libVersion)) ||
+        (minorModuleVersion(userVersion) > minorModuleVersion(libVersion)))
+      return -1;
+    return 0;
+  } else if (moduleVersionType(userVersion) == PRIVATE_MODULE_HEADER) {
+    if ((majorModuleVersion(userVersion) != majorModuleVersion(libVersion)) ||
+        (minorModuleVersion(userVersion) != minorModuleVersion(libVersion)))
+      return -1;
+    return 0;
+  } else
+    return -1;
+}
+
+class AppVersionInfo
+{
+public:
+  int defined;
+  char PkgStr[128];
+  char AppStr[128];
+  char VersionStr[128];
+  char BldNumStr[128];
+  char BldTimeStr[128];
+  char BldDateStr[128];
+  char BldMachineStr[128];
+  char BldPersonStr[128];
+  char BldCompileFlagsStr[128];
+  char FullVersionInfoStr[256];
+
+  AppVersionInfo();
+  void setup(const char *pkg_name, const char *app_name, const char *app_version,
+             const char *build_date, const char *build_time, const char *build_machine,
+             const char *build_person, const char *build_cflags);
+};
+
+#endif /*_Version_h*/
diff --git a/lib/ts/InkErrno.h b/lib/ts/InkErrno.h
new file mode 100644
index 00000000..7f8676e4
--- /dev/null
+++ b/lib/ts/InkErrno.h
@@ -0,0 +1,72 @@
+/** @file
+
+  Error code defines
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Contains all the errno codes that we may need (above and beyond those
+  provided by /usr/include/errno.h)
+
+*/
+
+#if !defined (_Errno_h_)
+#define _Errno_h_
+#include <errno.h>
+
+#define INK_START_ERRNO 20000
+
+#define SOCK_ERRNO                        INK_START_ERRNO
+#define NET_ERRNO                         INK_START_ERRNO+100
+#define CLUSTER_ERRNO                     INK_START_ERRNO+200
+#define CACHE_ERRNO                       INK_START_ERRNO+400
+#define HTTP_ERRNO                        INK_START_ERRNO+600
+
+#define ENET_THROTTLING                   (NET_ERRNO+1)
+#define ENET_CONNECT_TIMEOUT              (NET_ERRNO+2)
+#define ENET_CONNECT_FAILED               (NET_ERRNO+3)
+
+#define ESOCK_DENIED                      (SOCK_ERRNO+0)
+#define ESOCK_TIMEOUT                     (SOCK_ERRNO+1)
+#define ESOCK_NO_SOCK_SERVER_CONN         (SOCK_ERRNO+2)
+
+// Error codes for CLUSTER_EVENT_OPEN_FAILED
+#define ECLUSTER_NO_VC                    (CLUSTER_ERRNO+0)
+#define ECLUSTER_NO_MACHINE               (CLUSTER_ERRNO+1)
+#define ECLUSTER_OP_TIMEOUT               (CLUSTER_ERRNO+2)
+#define ECLUSTER_ORB_DATA_READ            (CLUSTER_ERRNO+3)
+#define ECLUSTER_ORB_EIO            	  (CLUSTER_ERRNO+4)
+#define ECLUSTER_CHANNEL_INUSE       	  (CLUSTER_ERRNO+5)
+#define ECLUSTER_NOMORE_CHANNELS       	  (CLUSTER_ERRNO+6)
+
+#define ECACHE_NO_DOC                     (CACHE_ERRNO+0)
+#define ECACHE_DOC_BUSY                   (CACHE_ERRNO+1)
+#define ECACHE_DIR_BAD                    (CACHE_ERRNO+2)
+#define ECACHE_BAD_META_DATA              (CACHE_ERRNO+3)
+#define ECACHE_READ_FAIL                  (CACHE_ERRNO+4)
+#define ECACHE_WRITE_FAIL                 (CACHE_ERRNO+5)
+#define ECACHE_MAX_ALT_EXCEEDED           (CACHE_ERRNO+6)
+#define ECACHE_NOT_READY                  (CACHE_ERRNO+7)
+#define ECACHE_ALT_MISS                   (CACHE_ERRNO+8)
+#define ECACHE_BAD_READ_REQUEST           (CACHE_ERRNO+9)
+
+#define EHTTP_ERROR                       (HTTP_ERRNO+0)
+
+#endif
diff --git a/lib/ts/InkPool.h b/lib/ts/InkPool.h
new file mode 100644
index 00000000..a26ad511
--- /dev/null
+++ b/lib/ts/InkPool.h
@@ -0,0 +1,96 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_POOL_H_INCLUDED__
+#define __INK_POOL_H_INCLUDED__
+
+//
+// Template of a static size pool of objects.
+//
+//
+template<class C> class InkStaticPool {
+public:
+
+  InkStaticPool(int size):sz1(size + 1), head(0), tail(0)
+  {
+    pool = new C *[sz1];
+  }
+
+  virtual ~ InkStaticPool() {
+    cleanUp();
+    delete[]pool;
+  }
+
+  C *get();
+  bool put(C * newObj);
+  void put_or_delete(C * newObj)
+  {
+    if (!put(newObj))
+      delete newObj;
+  }
+
+protected:
+  void cleanUp(void);
+
+private:
+  const int sz1;
+  int head;
+  int tail;
+  C **pool;
+};
+
+template<class C> inline C * InkStaticPool<C>::get()
+{
+  if (head != tail) {
+    C *res = pool[head++];
+    head %= sz1;
+    return (res);
+  }
+  return (NULL);
+}
+
+template<class C> inline bool InkStaticPool<C>::put(C * newObj)
+{
+  if (newObj == NULL)
+    return (false);             // cannot put NULL pointer
+
+  int newTail = (tail + 1) % sz1;
+  bool res = (newTail != head);
+  if (res) {
+    pool[tail] = newObj;
+    tail = newTail;
+  }
+  return (res);
+}
+
+template<class C> inline void InkStaticPool<C>::cleanUp(void)
+{
+  while (true) {
+    C *tp = get();
+    if (tp == NULL)
+      break;
+    delete tp;
+  }
+}
+
+#endif // #ifndef __INK_POOL_H_INCLUDED__
diff --git a/lib/ts/IntrusiveDList.h b/lib/ts/IntrusiveDList.h
new file mode 100644
index 00000000..2bb82b41
--- /dev/null
+++ b/lib/ts/IntrusiveDList.h
@@ -0,0 +1,311 @@
+# if ! defined(TS_INTRUSIVE_DOUBLE_LIST_HEADER)
+# define TS_INTRUSIVE_DOUBLE_LIST_HEADER
+
+/** @file
+
+    Intrusive double linked list container.
+
+    This provide support for a doubly linked list container for an
+    arbitrary class that uses the class directly and not wrapped. It
+    requires the class to provide the list pointers.
+
+    @note This is a header only library.
+
+    @note Due to bugs in either the C++ standard or gcc (or both), the
+    link members @b must be declared in the class used for the
+    list. If they are declared in a super class you will get "could
+    not convert template argument" errors, even though it should
+    work. This is because @c &T::m is of type @c S::* if @c S is a
+    super class of @c T and @c m is declared in @c S. My view is that
+    if I write "&T::m" I want a "T::*" and the compiler shouldn't go
+    rummaging through the class hierarchy for some other type. For
+    MSVC you can @c static_cast the template arguments as a
+    workaround, but not in gcc.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+ */
+
+# if USE_STL
+#   include <iterator>
+# else
+namespace std {
+  struct bidirectional_iterator_tag;
+}
+# endif
+
+/** Intrusive doubly linked list container.
+
+    This holds items in a doubly linked list using members of the
+    items.  Elements are copied in to the list. No memory management
+    is done by the list implementation.
+
+    To use this class a client should create the structure for
+    elements of the list and ensure that it has two self pointers to
+    be used by the list. For example,
+
+    @code
+      struct Elt {
+        int _payload;
+        Elt* _next;
+        Elt* _prev;
+      };
+    @endcode
+  
+    The list is declared as
+    @code
+      typedef IntrusiveDList<Elt, &Elt::_next, &Elt::_prev> EltList;
+    @endcode
+  
+    An element can be in multiple types of lists simultaneously as
+    long as each list type uses distinct members. It is not possible
+    for an element to be in more than one list of the same type
+    simultaneously.  This is intrinsic to intrusive list support.
+
+    Element access is done by using either STL style iteration, or
+    direct access to the member pointers. A client can have its own
+    mechanism for getting an element to start, or use the @c getHead
+    and/or @c getTail methods to get the first and last elements in
+    the list respectively.
+
+    @note Due to bugs in various compilers or the C++ specification
+    (or both) it is not possible in general to declare the element
+    pointers in a super class. The template argument @c T must be
+    exactly the same @c T as for the element pointers, even though a
+    pointer to member of a superclass should be trivially coerced to a
+    pointer to member of subclass. MSVC permits an explicit cast in
+    this case, but gcc does not and therefore there is no way to do
+    this. It is most vexing.
+
+    P.S. I think it's a compiler bug personally with regard to the
+    type of an expression of the form @c &T::M is not @c T::* if @c M
+    is declared in a superclass S. In that case the type is @c S::*
+    which seems very wrong to me.
+
+  */
+template <
+  typename T, ///< Type of list element.
+  T* (T::*N), ///< Member to use for pointer to next element.
+  T* (T::*P)  ///< Member to use for pointer to previous element.
+> class IntrusiveDList {
+  friend class iterator;
+public:
+  typedef IntrusiveDList self; ///< Self reference type.
+  typedef T element_type; ///< Type of list element.
+  /** STL style iterator for access to elements.
+   */
+  class iterator {
+    friend class IntrusiveDList;
+  public:
+    typedef iterator self; ///< Self reference type.
+    typedef T value_type; ///< Referenced type for iterator.
+    typedef int difference_type; ///< Distance type.
+    typedef T* pointer; ///< Pointer to referent.
+    typedef T& reference; ///< Reference to referent.
+    typedef std::bidirectional_iterator_tag iterator_category;
+
+    /// Default constructor.
+    iterator() : _list(0), _elt(0) {}
+    /// Equality test.
+    /// @return @c true if @c this and @a that refer to the same object.
+    bool operator==(self const& that) const {
+      return _list == that._list && _elt == that._elt;
+    }
+    /// Pre-increment.
+    /// Move to the next element in the list.
+    /// @return The iterator.
+    self& operator++() {
+      if (_elt) _elt = _elt->*N;
+      return *this;
+    }
+    /// Pre-decrement.
+    /// Move to the previous element in the list.
+    /// @return The iterator.
+    self& operator--() {
+      if (_elt) _elt = _elt->*P;
+      else if (_list) _elt = _list->_tail;
+      return *this;
+    }
+    /// Post-increment.
+    /// Move to the next element in the list.
+    /// @return The iterator value before the increment.
+    self operator++(int) {
+      self tmp(*this);
+      ++*this;
+      return tmp;
+    }
+    /// Post-decrement.
+    /// Move to the previous element in the list.
+    /// @return The iterator value before the decrement.
+    self operator--(int) {
+      self tmp(*this);
+      ++*this;
+      return tmp;
+    }
+    /// Inequality test.
+    /// @return @c true if @c this and @a do not refer to the same object.
+    bool operator!=(self const& that) const { return !(*this == that); }
+    /// Dereference.
+    /// @return A reference to the referent.
+    reference operator*() { return *_elt; }
+    /// Dereference.
+    /// @return A pointer to the referent.
+    pointer operator->() { return _elt; }
+  protected:
+    IntrusiveDList* _list; ///< List for this iterator.
+    T* _elt; ///< Referenced element.
+    /// Internal constructor for containers.
+    iterator(
+      IntrusiveDList* container, ///< Container for iteration.
+      T* elt ///< Initial referent
+    ) : _list(container), _elt(elt) {
+    }
+  };
+
+  /// Default constructor (empty list).
+  IntrusiveDList() : _head(0), _tail(0), _count(0) { }
+  /// Empty check.
+  /// @return @c true if the list is empty.
+  bool isEmpty() const { return 0 == _head; }
+  /// Add @a elt as the first element in the list.
+  /// @return This container.
+  self& prepend(
+    T* elt ///< Element to add.
+  ) {
+    elt->*N = _head;
+    elt->*P = 0;
+    if (_head) _head->*P = elt;
+    _head = elt;
+    if (! _tail) _tail = _head; // empty to non-empty transition
+    ++_count;
+    return *this;
+  }
+  /// Add @elt as the last element in the list.
+  /// @return This container.
+  self& append(
+    T* elt ///< Element to add.
+  ) {
+    elt->*N = 0;
+    elt->*P = _tail;
+    if (_tail) _tail->*N = elt;
+    _tail = elt;
+    if (! _head) _head = _tail; // empty to non-empty transition
+    ++_count;
+    return *this;
+  }
+  /// Remove the first element of the list.
+  /// @return A poiner to the removed item, or @c NULL if the list was empty.
+  T* takeHead() {
+    T* zret = 0;
+    if (_head) {
+      zret = _head;
+      _head = _head->*N;
+      if (_head) _head->*P = 0;
+      else _tail = 0; // non-empty to empty transition.
+      zret->*N = 0; // erase traces of list.
+      zret->*P = 0;
+      --_count;
+    }
+    return zret;
+  }
+  /// Remove the last element of the list.
+  /// @return A poiner to the removed item, or @c NULL if the list was empty.
+  T* takeTail() {
+    T* zret = 0;
+    if (_tail) {
+      zret = _tail;
+      _tail = _tail->*P = 0;
+      if (_tail) _tail->*N = 0;
+      else _head = 0; // non-empty to empty transition.
+      zret->*N = 0; // erase traces of list.
+      zret->*P = 0;
+      --_count;
+    }
+    return zret;
+  }
+  /// Insert a new element @a elt after @a target.
+  /// The caller is responsible for ensuring @a target is in this list
+  /// and @a elt is not in a list.
+  /// @return This list.
+  self& insertAfter(
+    T* target, ///< Target element in list.
+    T* elt ///< Element to insert.
+  ) {
+    // Should assert that !(elt->*N || elt->*P)
+    elt->*N = target->*N;
+    elt->*P = target;
+    target->*N = elt;
+    if (elt->*N) elt->*N->*P = elt;
+    if (target == _tail) _tail = elt;
+    ++_count;
+    return *this;
+  }
+  /// Insert a new element @a elt before @a target.
+  /// The caller is responsible for ensuring @a target is in this list
+  /// and @a elt is not in a list.
+  /// @return This list.
+  self& insertBefore(
+    T* target, ///< Target element in list.
+    T* elt ///< Element to insert.
+  ) {
+    // Should assert that !(elt->*N || elt->*P)
+    elt->*P = target->*P;
+    elt->*N = target;
+    target->*P = elt;
+    if (elt->*P) elt->*P->*N = elt;
+    if (target == _head) _head = elt;
+    ++_count;
+    return *this;
+  }
+  /// Take @a elt out of this list.
+  /// @return This list.
+  self& take(
+    T* elt ///< Element to remove.
+  ) {
+    if (elt->*P) elt->*P->*N = elt->*N;
+    if (elt->*N) elt->*N->*P = elt->*P;
+    if (elt == _head) _head = elt->*N;
+    if (elt == _tail) _tail = elt->*P;
+    elt->*P = elt->*N = 0;
+    --_count;
+    return *this;
+  }
+  /// Remove all elements.
+  /// @note @b No memory management is done!
+  /// @return This container.
+  self& clear() { _head = _tail = 0; _count = 0; return *this; }
+  /// @return Number of elements in the list.
+  size_t getCount() const { return _count; }
+
+  /// Get an iterator to the first element.
+  iterator begin() { return iterator(this, _head); }
+  /// Get an iterator to past the last element.
+  iterator end() { return iterator(this, 0); }
+  /// Get the first element.
+  T* getHead() { return _head; }
+  /// Get the last element.
+  T* getTail() { return _tail; }
+protected:
+  T* _head; ///< First element in list.
+  T* _tail; ///< Last element in list.
+  size_t _count; ///< # of elements in list.
+};
+
+# endif // TS_INTRUSIVE_DOUBLE_LIST_HEADER
+
diff --git a/lib/ts/IntrusivePtrTest.cc b/lib/ts/IntrusivePtrTest.cc
new file mode 100644
index 00000000..d58db697
--- /dev/null
+++ b/lib/ts/IntrusivePtrTest.cc
@@ -0,0 +1,75 @@
+/** @file
+
+    Intrusive pointer test.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+# include <ts/IntrusivePtr.h>
+# include <ts/IntrusiveDList.h>
+# include <ts/TestBox.h>
+
+namespace { // Hide our local defintions
+
+// Test class for pointers and lists.
+class A : public IntrusivePtrCounter {
+public:
+  A() : _data(0) {}
+  static A*& nextPtr(A* a) { return a->_next; }
+  static A*& prevPtr(A* a) { return a->_prev; }
+  int _data;
+  A* _next;
+  A* _prev;
+};
+
+// Definitions to test compilation.
+typedef IntrusivePtrQueue<
+  A,
+  IntrusivePtrLinkFunction<A, &A::nextPtr, &A::prevPtr>
+> AList;
+
+}
+
+REGRESSION_TEST(IntrusivePtr_Test_Basic)(RegressionTest* t, int atype, int* pstatus) {
+  IntrusivePtr<A> ptr1;
+  IntrusivePtr<A> ptr2(new A);
+
+  TestBox tb(t, pstatus);
+
+  tb = REGRESSION_TEST_PASSED;
+
+  tb.check(!ptr1, "Default construct pointer is not empty.");
+  tb.check(ptr2, "Construction from pointer was empty.");
+
+  AList alist1;
+
+  tb.check(ptr2->useCount() == 1, "Bad use count: expected 1 got %d", ptr2->useCount());
+  alist1.append(ptr2);
+  tb.check(ptr2->useCount() == 2, "Bad use count: expected 2 got %d", ptr2->useCount());
+  alist1.remove(ptr2);
+  tb.check(ptr2->useCount() == 1, "Bad use count: expected 1 got %d", ptr2->useCount());
+  alist1.prepend(ptr2);
+  tb.check(ptr2->useCount() == 2, "Bad use count: expected 2 got %d", ptr2->useCount());
+  for ( AList::iterator spot = alist1.begin(), limit = alist1.end()
+          ; spot != limit
+          ; ++spot
+  ) {
+    if (spot->_data) break;
+  }
+}
diff --git a/lib/ts/IpMap.cc b/lib/ts/IpMap.cc
new file mode 100644
index 00000000..e6da38bb
--- /dev/null
+++ b/lib/ts/IpMap.cc
@@ -0,0 +1,1405 @@
+# include "IpMap.h"
+
+/** @file
+    IP address map support.
+
+    Provide the ability to create a range based mapping for the IP
+    address space. Addresses can be added and removed and each address
+    is associated with arbitrary client data.
+
+    @internal Don't bother to look at this code if you don't know how
+    a red/black tree works. There are so many good references on the
+    subject it's a waste to have some inferior version here. The
+    methods on @c Node follow the standard implementation except for
+    being parameterized by direction (so that, for instance, right
+    rotate and left rotate are both done by the @c rotate method with
+    a direction argument).
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+// Validation / printing disabled until I figure out how to generalize so
+// as to not tie reporting into a particular project environment.
+
+namespace ts { namespace detail {
+
+// Helper functions
+
+inline int cmp(sockaddr_in6 const& lhs, sockaddr_in6 const& rhs) {
+  return memcmp(lhs.sin6_addr.s6_addr, rhs.sin6_addr.s6_addr, TS_IP6_SIZE);
+}
+
+/// Less than.
+inline bool operator<(sockaddr_in6 const& lhs, sockaddr_in6 const& rhs) {
+  return ts::detail::cmp(lhs, rhs) < 0;
+}
+inline bool operator<(sockaddr_in6 const* lhs, sockaddr_in6 const& rhs) {
+  return ts::detail::cmp(*lhs, rhs) < 0;
+}
+/// Less than.
+inline bool operator<(sockaddr_in6 const& lhs, sockaddr_in6 const* rhs) {
+  return ts::detail::cmp(lhs, *rhs) < 0;
+}
+/// Equality.
+inline bool operator==(sockaddr_in6 const& lhs, sockaddr_in6 const* rhs) {
+  return ts::detail::cmp(lhs, *rhs) == 0;
+}
+/// Equality.
+inline bool operator==(sockaddr_in6 const* lhs, sockaddr_in6 const& rhs) {
+  return ts::detail::cmp(*lhs, rhs) == 0;
+}
+/// Equality.
+inline bool operator==(sockaddr_in6 const& lhs, sockaddr_in6 const& rhs) {
+  return ts::detail::cmp(lhs, rhs) == 0;
+}
+/// Less than or equal.
+inline bool operator<=(sockaddr_in6 const& lhs, sockaddr_in6 const* rhs) {
+  return ts::detail::cmp(lhs, *rhs) <= 0;
+}
+/// Less than or equal.
+inline bool operator<=(sockaddr_in6 const& lhs, sockaddr_in6 const& rhs) {
+  return ts::detail::cmp(lhs, rhs) <= 0;
+}
+/// Greater than or equal.
+inline bool operator>=(sockaddr_in6 const& lhs, sockaddr_in6 const& rhs) {
+  return ts::detail::cmp(lhs, rhs) >= 0;
+}
+/// Greater than or equal.
+inline bool operator>=(sockaddr_in6 const& lhs, sockaddr_in6 const* rhs) {
+  return ts::detail::cmp(lhs, *rhs) >= 0;
+}
+/// Greater than.
+inline bool operator>(sockaddr_in6 const& lhs, sockaddr_in6 const* rhs) {
+  return ts::detail::cmp(lhs, *rhs) > 0;
+}
+
+/// Equality.
+/// @note If @a n is @c NULL it is treated as having the color @c BLACK.
+/// @return @c true if @a c and the color of @a n are the same.
+inline bool operator == ( RBNode* n, RBNode::Color c ) {
+  return c == ( n ? n->getColor() : RBNode::BLACK);
+}
+/// Equality.
+/// @note If @a n is @c NULL it is treated as having the color @c BLACK.
+/// @return @c true if @a c and the color of @a n are the same.
+inline bool operator == ( RBNode::Color c, RBNode* n ) {
+  return n == c;
+}
+
+inline RBNode*
+RBNode::getChild(Direction d) const {
+  return d == RIGHT ? _right
+    : d == LEFT ? _left
+    : 0
+    ;
+}
+
+RBNode*
+RBNode::rotate(Direction d) {
+  self* parent = _parent; // Cache because it can change before we use it.
+  Direction child_dir = _parent ? _parent->getChildDirection(this) : NONE;
+  Direction other_dir = this->flip(d);
+  self* child = this;
+
+  if (d != NONE && this->getChild(other_dir)) {
+    child = this->getChild(other_dir);
+    this->clearChild(other_dir);
+    this->setChild(child->getChild(d), other_dir);
+    child->clearChild(d);
+    child->setChild(this, d);
+    child->structureFixup();
+    this->structureFixup();
+    if (parent) {
+      parent->clearChild(child_dir);
+      parent->setChild(child, child_dir);
+    } else {
+      child->_parent = 0;
+    }
+  }
+  return child;
+}
+
+RBNode*
+RBNode::setChild(self* n, Direction d) {
+  if (n) n->_parent = this;
+  if (d == RIGHT) _right = n;
+  else if (d == LEFT) _left = n;
+  return n;
+}
+
+// Returns the root node
+RBNode*
+RBNode::rippleStructureFixup() {
+  self* root = this; // last node seen, root node at the end
+  self* p = this;
+  while (p) {
+    p->structureFixup();
+    root = p;
+    p = root->_parent;
+  }
+  return root;
+}
+
+void
+RBNode::replaceWith(self* n) {
+  n->_color = _color;
+  if (_parent) {
+    Direction d = _parent->getChildDirection(this);
+    _parent->setChild(0, d);
+    if (_parent != n) _parent->setChild(n, d);
+  } else {
+    n->_parent = 0;
+  }
+  n->_left = n->_right = 0;
+  if (_left && _left != n) n->setChild(_left, LEFT);
+  if (_right && _right != n) n->setChild(_right, RIGHT);
+  _left = _right = 0;
+}
+
+/* Rebalance the tree. This node is the unbalanced node. */
+RBNode*
+RBNode::rebalanceAfterInsert() {
+  self* x(this); // the node with the imbalance
+
+  while (x && x->_parent == RED) {
+    Direction child_dir = NONE;
+        
+    if (x->_parent->_parent)
+      child_dir = x->_parent->_parent->getChildDirection(x->_parent);
+    else
+      break;
+    Direction other_dir(flip(child_dir));
+        
+    self* y = x->_parent->_parent->getChild(other_dir);
+    if (y == RED) {
+      x->_parent->_color = BLACK;
+      y->_color = BLACK;
+      x = x->_parent->_parent;
+      x->_color = RED;
+    } else {
+      if (x->_parent->getChild(other_dir) == x) {
+        x = x->_parent;
+        x->rotate(child_dir);
+      }
+      // Note setting the parent color to BLACK causes the loop to exit.
+      x->_parent->_color = BLACK;
+      x->_parent->_parent->_color = RED;
+      x->_parent->_parent->rotate(other_dir);
+    }
+  }
+    
+  // every node above this one has a subtree structure change,
+  // so notify it. serendipitously, this makes it easy to return
+  // the new root node.
+  self* root = this->rippleStructureFixup();
+  root->_color = BLACK;
+
+  return root;
+}
+
+
+// Returns new root node
+RBNode*
+RBNode::remove() {
+  self* root = 0; // new root node, returned to caller
+
+  /*  Handle two special cases first.
+      - This is the only node in the tree, return a new root of NIL
+      - This is the root node with only one child, return that child as new root
+  */
+  if (!_parent && !(_left && _right)) {
+    if (_left) {
+      _left->_parent = 0;
+      root = _left;
+      root->_color = BLACK;
+    } else if (_right) {
+      _right->_parent = 0;
+      root = _right;
+      root->_color = BLACK;
+    } // else that was the only node, so leave @a root @c NULL.
+    return root;
+  }
+
+  /*  The node to be removed from the tree.
+      If @c this (the target node) has both children, we remove
+      its successor, which cannot have a left child and
+      put that node in place of the target node. Otherwise this
+      node has at most one child, so we can remove it.
+      Note that the successor of a node with a right child is always
+      a right descendant of the node. Therefore, remove_node
+      is an element of the tree rooted at this node.
+      Because of the initial special case checks, we know
+      that remove_node is @b not the root node.
+  */
+  self* remove_node(_left && _right ? _next : this);
+
+  // This is the color of the node physically removed from the tree.
+  // Normally this is the color of @a remove_node
+  Color remove_color = remove_node->_color;
+  // Need to remember the direction from @a remove_node to @a splice_node
+  Direction d(NONE);
+
+  // The child node that will be promoted to replace the removed node.
+  // The choice of left or right is irrelevant, as remove_node has at
+  // most one child (and splice_node may be NIL if remove_node has no
+  // children).
+  self* splice_node(remove_node->_left
+    ? remove_node->_left
+    : remove_node->_right
+  );
+
+  if (splice_node) {
+    // @c replace_with copies color so in this case the actual color
+    // lost is that of the splice_node.
+    remove_color = splice_node->_color;
+    remove_node->replaceWith(splice_node);
+  } else {
+    // No children on remove node so we can just clip it off the tree
+    // We update splice_node to maintain the invariant that it is
+    // the node where the physical removal occurred.
+    splice_node = remove_node->_parent;
+    // Keep @a d up to date.
+    d = splice_node->getChildDirection(remove_node);
+    splice_node->setChild(0, d);
+  }
+
+  // If the node to pull out of the tree isn't this one, 
+  // then replace this node in the tree with that removed
+  // node in liu of copying the data over.
+  if (remove_node != this) {
+    // Don't leave @a splice_node referring to a removed node
+    if (splice_node == this) splice_node = remove_node;
+    this->replaceWith(remove_node);
+  }
+
+  root = splice_node->rebalanceAfterRemove(remove_color, d);
+  root->_color = BLACK;
+  return root;
+}
+
+/**
+ * Rebalance tree after a deletion
+ * Called on the spliced in node or its parent, whichever is not NIL.
+ * This modifies the tree structure only if @a c is @c BLACK.
+ */
+RBNode*
+RBNode::rebalanceAfterRemove(
+  Color c, //!< The color of the removed node
+  Direction d //!< Direction of removed node from its parent
+) {
+  self* root;
+
+  if (BLACK == c) { // only rebalance if too much black
+    self* n = this;
+    self* parent = n->_parent;
+
+    // If @a direction is set, then we need to start at a leaf psuedo-node.
+    // This is why we need @a parent, otherwise we could just use @a n.
+    if (NONE != d) {
+      parent = n;
+      n = 0;
+    }
+
+    while (parent) { // @a n is not the root
+      // If the current node is RED, we can just recolor and be done
+      if (n == RED) {
+        n->_color = BLACK;
+        break;
+      } else {
+        // Parameterizing the rebalance logic on the directions. We
+        // write for the left child case and flip directions for the
+        // right child case
+        Direction near(LEFT), far(RIGHT);
+        if (
+          (NONE == d && parent->getChildDirection(n) == RIGHT)
+          || RIGHT == d
+        ) {
+          near = RIGHT;
+          far = LEFT;
+        }
+
+        self* w = parent->getChild(far); // sibling(n)
+
+        if (w->_color == RED) {
+          w->_color = BLACK;
+          parent->_color = RED;
+          parent->rotate(near);
+          w = parent->getChild(far);
+        }
+
+        self* wfc = w->getChild(far);
+        if (w->getChild(near) == BLACK && wfc == BLACK) {
+          w->_color = RED;
+          n = parent;
+          parent = n->_parent;
+          d = NONE; // Cancel any leaf node logic
+        } else {
+          if (wfc->_color == BLACK) {
+            w->getChild(near)->_color = BLACK;
+            w->_color = RED;
+            w->rotate(far);
+            w = parent->getChild(far);
+            wfc = w->getChild(far); // w changed, update far child cache.
+          }
+          w->_color = parent->_color;
+          parent->_color = BLACK;
+          wfc->_color = BLACK;
+          parent->rotate(near);
+          break;
+        }
+      }
+    }
+  }
+  root = this->rippleStructureFixup();
+  return root;
+}
+
+/** Ensure that the local information associated with each node is
+    correct globally This should only be called on debug builds as it
+    breaks any efficiencies we have gained from our tree structure.
+    */
+int
+RBNode::validate() {
+# if 0
+  int black_ht = 0;
+  int black_ht1, black_ht2;
+
+  if (_left) {
+    black_ht1 = _left->validate();
+  }
+  else
+    black_ht1 = 1;
+
+  if (black_ht1 > 0 && _right)
+    black_ht2 = _right->validate();
+  else
+    black_ht2 = 1;
+
+  if (black_ht1 == black_ht2) {
+    black_ht = black_ht1;
+    if (this->_color == BLACK)
+      ++black_ht;
+    else {	// No red-red
+      if (_left == RED)
+        black_ht = 0;
+      else if (_right == RED)
+        black_ht = 0;
+      if (black_ht == 0)
+        std::cout << "Red-red child\n";
+    }
+  } else {
+    std::cout << "Height mismatch " << black_ht1 << " " << black_ht2 << "\n";
+  }
+  if (black_ht > 0 && !this->structureValidate())
+    black_ht = 0;
+
+  return black_ht;
+# else
+  return 0;
+# endif
+}
+
+/** Base template class for IP maps.
+    This class is templated by the @a N type which must be a subclass
+    of @c RBNode. This class carries information about the addresses stored
+    in the map. This includes the type, the common argument type, and
+    some utility methods to operate on the address.
+*/
+template <
+  typename N ///< Node type.
+> struct IpMapBase {
+  friend class ::IpMap;
+  
+  typedef IpMapBase self; ///< Self reference type.
+  typedef typename N::ArgType ArgType; ///< Import type.
+  typedef typename N::Metric Metric;   ///< Import type.g482
+
+  IpMapBase() : _root(0) {}
+  ~IpMapBase() { this->clear(); }
+
+  /** Mark a range.
+      All addresses in the range [ @a min , @a max ] are marked with @a data.
+      @return This object.
+  */
+  self& mark(
+    ArgType min, ///< Minimum value in range.
+    ArgType max, ///< Maximum value in range.
+    void* data = 0     ///< Client data payload.
+  );
+  /** Unmark addresses.
+
+      All addresses in the range [ @a min , @a max ] are cleared
+      (removed from the map), no longer marked.
+
+      @return This object.
+  */
+  self& unmark(
+    ArgType min,
+    ArgType max
+  );
+
+  /** Fill addresses.
+
+      This background fills using the range. All addresses in the
+      range that are @b not present in the map are added. No
+      previously present address is changed.
+
+      @note This is useful for filling in first match tables.
+
+      @return This object.
+  */
+  self& fill(
+    ArgType min,
+    ArgType max,
+    void* data = 0
+  );
+
+  /** Test for membership.
+
+      @return @c true if the address is in the map, @c false if not.
+      If the address is in the map and @a ptr is not @c NULL, @c *ptr
+      is set to the client data for the address.
+  */
+  bool contains(
+    ArgType target, ///< Search target value.
+    void **ptr = 0 ///< Client data return.
+  ) const;
+
+  /** Remove all addresses in the map.
+
+      @note This is much faster than using @c unmark with a range of
+      all addresses.
+
+      @return This object.
+  */
+  self& clear();
+
+  /** Lower bound for @a target.  @return The node whose minimum value
+      is the largest that is not greater than @a target, or @c NULL if
+      all minimum values are larger than @a target.
+  */
+  N* lowerBound(ArgType target);
+
+  /** Insert @a n after @a spot.
+      Caller is responsible for ensuring that @a spot is in this container
+      and the proper location for @a n.
+  */
+  void insertAfter(
+    N* spot, ///< Node in list.
+    N* n ///< Node to insert.
+  );
+  /** Insert @a n before @a spot.
+      Caller is responsible for ensuring that @a spot is in this container
+      and the proper location for @a n.
+  */
+  void insertBefore(
+    N* spot, ///< Node in list.
+    N* n ///< Node to insert.
+  );
+  /// Add node @a n as the first node.
+  void prepend(
+    N* n
+  );
+  /// Add node @a n as the last node.
+  void append(
+    N* n
+  );
+  /// Remove a node.
+  void remove(
+    N* n ///< Node to remove.
+  );
+
+  /** Validate internal data structures.
+      @note Intended for debugging, not general client use.
+  */
+  void validate();
+
+  /// @return The number of distinct ranges.
+  size_t getCount() const;
+
+  /// Print all spans.
+  /// @return This map.
+  self& print();
+  
+  // Helper methods.
+  N* prev(RBNode* n) const { return static_cast<N*>(n->_prev); }
+  N* next(RBNode* n) const { return static_cast<N*>(n->_next); }
+  N* parent(RBNode* n) const { return static_cast<N*>(n->_parent); }
+  N* left(RBNode* n) const { return static_cast<N*>(n->_left); }
+  N* right(RBNode* n) const { return static_cast<N*>(n->_right); }
+  N* getHead() { return static_cast<N*>(_list.getHead()); }
+  N* getTail() { return static_cast<N*>(_list.getTail()); }
+
+  N* _root; ///< Root node.
+  /// In order list of nodes.
+  /// For ugly compiler reasons, this is a list of base class pointers
+  /// even though we really store @a N instances on it.
+  typedef IntrusiveDList<RBNode, &RBNode::_next, &RBNode::_prev> NodeList;
+  /// This keeps track of all allocated nodes in order.
+  /// Iteration depends on this list being maintained.
+  NodeList _list;
+};
+
+template < typename N > N*
+IpMapBase<N>::lowerBound(ArgType target) {
+  N* n = _root; // current node to test.
+  N* zret = 0; // best node so far.
+  while (n) {
+    if (target < n->_min) n = left(n);
+    else {
+      zret = n; // this is a better candidate.
+      if (n->_max < target) n = right(n);
+      else break;
+    }
+  }
+  return zret;
+}
+
+template < typename N > IpMapBase<N>&
+IpMapBase<N>::clear() {
+  // Delete everything.
+  N* n = static_cast<N*>(_list.getHead());
+  while (n) {
+    N* x = n;
+    n = next(n);
+    delete x;
+  }
+  _list.clear();
+  _root = 0;
+  return *this;
+}
+
+template < typename N > IpMapBase<N>&
+IpMapBase<N>::fill(ArgType rmin, ArgType rmax, void* payload) {
+  // Rightmost node of interest with n->_min <= min.
+  N* n = this->lowerBound(rmin);
+  N* x = 0; // New node (if any).
+  // Need copies because we will modify these.
+  Metric min = N::deref(rmin);
+  Metric max = N::deref(rmax);
+
+  // Handle cases involving a node of interest to the left of the
+  // range.
+  if (n) {
+    if (n->_min < min) {
+      Metric min_1 = min;
+      N::dec(min_1);  // dec is OK because min isn't zero.
+      if (n->_max < min_1) { // no overlap or adj.
+        n = next(n);
+      } else if (n->_max >= max) { // incoming range is covered, just discard.
+        return *this;
+      } else if (n->_data != payload) { // different payload, clip range on left.
+        min = n->_max;
+        N::inc(min);
+        n = next(n);
+      } else { // skew overlap with same payload, use node and continue.
+        x = n;
+        n = next(n);
+      }
+    }
+  } else {
+    n = this->getHead();
+  }
+
+  // Work through the rest of the nodes of interest.
+  // Invariant: n->_min >= min
+
+  // Careful here -- because max_plus1 might wrap we need to use it only
+  // if we can certain it didn't. This is done by ordering the range
+  // tests so that when max_plus1 is used when we know there exists a
+  // larger value than max.
+  Metric max_plus1 = max;
+  N::inc(max_plus1);
+  /* Notes:
+     - max (and thence max_plus1) never change during the loop.
+     - we must have either x != 0 or adjust min but not both.
+  */
+  while (n) {
+    if (n->_data == payload) {
+      if (x) {
+        if (n->_max <= max) {
+          // next range is covered, so we can remove and continue.
+          this->remove(n);
+          n = next(x);
+        } else if (n->_min <= max_plus1) {
+          // Overlap or adjacent with larger max - absorb and finish.
+          x->setMax(n->_max);
+          this->remove(n);
+          return *this;
+        } else {
+          // have the space to finish off the range.
+          x->setMax(max);
+          return *this;
+        }
+      } else { // not carrying a span.
+        if (n->_max <= max) { // next range is covered - use it.
+          x = n;
+          x->setMin(min);
+          n = next(n);
+        } else if (n->_min <= max_plus1) {
+          n->setMin(min);
+          return *this;
+        } else { // no overlap, space to complete range.
+          this->insertBefore(n, new N(min, max, payload));
+          return *this;
+        }
+      }
+    } else { // different payload
+      if (x) {
+        if (max < n->_min) { // range ends before n starts, done.
+          x->setMax(max);
+          return *this;
+        } else if (max <= n->_max) { // range ends before n, done.
+          x->setMaxMinusOne(n->_min);
+          return *this;
+        } else { // n is contained in range, skip over it.
+          x->setMaxMinusOne(n->_min);
+          x = 0;
+          min = n->_max;
+          N::inc(min); // OK because n->_max maximal => next is null.
+          n = next(n);
+        }
+      } else { // no carry node.
+        if (max < n->_min) { // entirely before next span.
+          this->insertBefore(n, new N(min, max, payload));
+          return *this;
+        } else {
+          if (min < n->_min) { // leading section, need node.
+            N* y = new N(min, n->_min, payload);
+            y->decrementMax();
+            this->insertBefore(n, y);
+          }
+          if (max <= n->_max) // nothing past node
+            return *this;
+          min = n->_max;
+          N::inc(min);
+          n = next(n);
+        }
+      }
+    }
+  }
+  // Invariant: min is larger than any existing range maximum.
+  if (x) {
+    x->setMax(max);
+  } else {
+    this->append(new N(min, max, payload));
+  }
+  return *this;
+}
+
+template < typename N > IpMapBase<N>&
+IpMapBase<N>::mark(ArgType min, ArgType max, void* payload) {
+  N* n = this->lowerBound(min); // current node.
+  N* x = 0; // New node, gets set if we re-use an existing one.
+  N* y = 0; // Temporary for removing and advancing.
+
+  // Several places it is handy to have max+1. Must be careful
+  // about wrapping.
+  Metric max_plus = N::deref(max);
+  N::inc(max_plus);
+
+  /* Some subtlety - for IPv6 we overload the compare operators to do
+     the right thing, but we can't overload pointer
+     comparisons. Therefore we carefully never compare pointers in
+     this logic. Only @a min and @a max can be pointers, everything
+     else is an instance or a reference. Since there's no good reason
+     to compare @a min and @a max this isn't particularly tricky, but
+     it's good to keep in mind. If we were somewhat more clever, we
+     would provide static less than and equal operators in the
+     template class @a N and convert all the comparisons to use only
+     those two via static function call.
+  */
+
+  /*  We have lots of special cases here primarily to minimize memory
+      allocation by re-using an existing node as often as possible.
+  */
+  if (n) {
+    // Watch for wrap.
+    Metric min_1 = N::deref(min);
+    N::dec(min_1);
+    if (n->_min == min) {
+      // Could be another span further left which is adjacent.
+      // Coalesce if the data is the same. min_1 is OK because
+      // if there is a previous range, min is not zero.
+      N* p = prev(n);
+      if (p && p->_data == payload && p->_max == min_1) {
+        x = p;
+        n = x; // need to back up n because frame of reference moved.
+        x->setMax(max);
+      } else if (n->_max <= max) {
+        // Span will be subsumed by request span so it's available for use.
+        x = n;
+        x->setMax(max).setData(payload);
+      } else if (n->_data == payload) {
+        return *this; // request is covered by existing span with the same data
+      } else {
+        // request span is covered by existing span.
+        x = new N(min, max, payload); //
+        n->setMin(max_plus); // clip existing.
+        this->insertBefore(n, x);
+        return *this;
+      }
+    } else if (n->_data == payload && n->_max >= min_1) {
+      // min_1 is safe here because n->_min < min so min is not zero.
+      x = n;
+      // If the existing span covers the requested span, we're done.
+      if (x->_max >= max) return *this;
+      x->setMax(max);
+    } else if (n->_max <= max) {
+      // Can only have left skew overlap, otherwise disjoint.
+      // Clip if overlap.
+      if (n->_max >= min) n->setMax(min_1);
+      else if (next(n) && n->_max <= max) {
+        // request region covers next span so we can re-use that node.
+        x = next(n);
+        x->setMin(min).setMax(max).setData(payload);
+        n = x; // this gets bumped again, which is correct.
+      }
+    } else {
+      // Existing span covers new span but with a different payload.
+      // We split it, put the new span in between and we're done.
+      // max_plus is valid because n->_max > max.
+      N* r;
+      x = new N(min, max, payload);
+      r = new N(max_plus, n->_max, n->_data);
+      n->setMax(min_1);
+      this->insertAfter(n, x);
+      this->insertAfter(x, r);
+      return *this; // done.
+    }
+    n = next(n); // lower bound span handled, move on.
+    if (!x) {
+      x = new N(min, max, payload);
+      if (n) this->insertBefore(n, x);
+      else this->append(x); // note that since n == 0 we'll just return.
+    }
+  } else if (0 != (n = this->getHead()) && // at least one node in tree.
+             n->_data == payload && // payload matches
+             (n->_max <= max || n->_min <= max_plus) // overlap or adj.
+  ) {
+    // Same payload with overlap, re-use.
+    x = n;
+    n = next(n);
+    x->setMin(min);
+    if (x->_max < max) x->setMax(max);
+  } else {
+    x = new N(min, max, payload);
+    this->prepend(x);
+  }
+
+  // At this point, @a x has the node for this span and all existing spans of
+  // interest start at or past this span.
+  while (n) {
+    if (n->_max <= max) { // completely covered, drop span, continue
+      y = n;
+      n = next(n);
+      this->remove(y);
+    } else if (max_plus < n->_min) { // no overlap, done.
+      break;
+    } else if (n->_data == payload) { // skew overlap or adj., same payload
+      x->setMax(n->_max);
+      y = n;
+      n = next(n);
+      this->remove(y);
+    } else if (n->_min <= max) { // skew overlap different payload
+      n->setMin(max_plus);
+      break;
+    }
+  }
+
+  return *this;
+}
+
+template <typename N> IpMapBase<N>&
+IpMapBase<N>::unmark(ArgType min, ArgType max) {
+  N* n = this->lowerBound(min);
+  N* x; // temp for deletes.
+
+  // Need to handle special case where first span starts to the left.
+  if (n && n->_min < min) {
+    if (n->_max >= min) { // some overlap
+      if (n->_max > max) {
+        // request span is covered by existing span - split existing span.
+        x = new N(max, N::argue(n->_max), n->_data);
+        x->incrementMin();
+        n->setMaxMinusOne(N::deref(min));
+        this->insertAfter(n, x);
+        return *this; // done.
+      } else {
+        n->setMaxMinusOne(N::deref(min)); // just clip overlap.
+      }
+    } // else disjoint so just skip it.
+    n = next(n);
+  }
+  // n and all subsequent spans start at >= min.
+  while (n) {
+    x = n;
+    n = next(n);
+    if (x->_max <= max) {
+      this->remove(x);
+    } else {
+      if (x->_min <= max) { // clip overlap
+        x->setMinPlusOne(N::deref(max));
+      }
+      break;
+    }
+  }
+  return *this;
+}
+
+template <typename N> void
+IpMapBase<N>::insertAfter(N* spot, N* n) {
+  N* c = right(spot);
+  if (!c) spot->setChild(n, N::RIGHT);
+  else spot->_next->setChild(n, N::LEFT);
+
+  _list.insertAfter(spot, n);
+  _root = static_cast<N*>(n->rebalanceAfterInsert());
+}
+
+template <typename N> void
+IpMapBase<N>::insertBefore(N* spot, N* n) {
+  N* c = left(spot);
+  if (!c) spot->setChild(n, N::LEFT);
+  else spot->_prev->setChild(n, N::RIGHT);
+
+  _list.insertBefore(spot, n);
+  _root = static_cast<N*>(n->rebalanceAfterInsert());
+}
+
+template <typename N> void
+IpMapBase<N>::prepend(N* n) {
+  if (!_root) _root = n;
+  else _root = static_cast<N*>(_list.getHead()->setChild(n, N::LEFT)->rebalanceAfterInsert());
+  _list.prepend(n);
+}
+
+template <typename N> void
+IpMapBase<N>::append(N* n) {
+  if (!_root) _root = n;
+  else _root = static_cast<N*>(_list.getTail()->setChild(n, N::RIGHT)->rebalanceAfterInsert());
+  _list.append(n);
+}
+
+template <typename N> void
+IpMapBase<N>::remove(N* n) {
+  _root = static_cast<N*>(n->remove());
+  _list.take(n);
+  delete n;
+}
+
+template <typename N> bool
+IpMapBase<N>::contains(ArgType x, void** ptr) const {
+  bool zret = false;
+  N* n = _root; // current node to test.
+  while (n) {
+    if (x < n->_min) n = left(n);
+    else if (n->_max < x) n = right(n);
+    else {
+      if (ptr) *ptr = n->_data;
+      zret = true;
+      break;
+    }
+  }
+  return zret;
+}
+
+template < typename N > size_t IpMapBase<N>::getCount() const { return _list.getCount(); }
+//----------------------------------------------------------------------------
+template <typename N> void
+IpMapBase<N>::validate() {
+# if 0
+  if (_root) _root->validate();
+  for ( Node* n = _list.getHead() ; n ; n = n->_next ) {
+    Node* x;
+    if (0 != (x = n->_next)) {
+      if (x->_prev != n)
+        std::cout << "Broken list" << std::endl;
+      if (n->_max >= x->_min)
+        std::cout << "Out of order - " << n->_max << " > " << x->_min << std::endl;
+      if (n->_parent == n || n->_left == n || n->_right == n)
+        std::cout << "Looped node" << std::endl;
+    }
+  }
+# endif
+}
+
+template <typename N> IpMapBase<N>&
+IpMapBase<N>::print() {
+# if 0
+  for ( Node* n = _list.getHead() ; n ; n = n->_next ) {
+    std::cout
+      << n << ": " << n->_min << '-' << n->_max << " [" << n->_data << "] "
+      << (n->_color == Node::BLACK ? "Black " : "Red   ") << "P=" << n->_parent << " L=" << n->_left << " R=" << n->_right
+      << std::endl;
+  }
+# endif
+  return *this;
+}
+
+//----------------------------------------------------------------------------
+typedef Interval<in_addr_t, in_addr_t> Ip4Span;
+
+/** Node for IPv4 map.
+    We store the address in host order in the @a _min and @a _max
+    members for performance. We store copies in the @a _sa member
+    for API compliance (which requires @c sockaddr* access).
+*/
+class Ip4Node : public IpMap::Node, protected Ip4Span {
+  friend struct IpMapBase<Ip4Node>;
+public:
+  typedef Ip4Node self; ///< Self reference type.
+
+  /// Construct with values.
+  Ip4Node(
+    ArgType min, ///< Minimum address (host order).
+    ArgType max, ///< Maximum address (host order).
+    void* data ///< Client data.
+  ) : Node(data), Ip4Span(min, max) {
+    ats_ip4_set(ats_ip_sa_cast(&_sa._min), htonl(min));
+    ats_ip4_set(ats_ip_sa_cast(&_sa._max), htonl(max));
+  }
+  /// @return The minimum value of the interval.
+  virtual sockaddr const* min() const {
+    return ats_ip_sa_cast(&_sa._min);
+  }
+  /// @return The maximum value of the interval.
+  virtual sockaddr const* max() const {
+    return ats_ip_sa_cast(&_sa._max);
+  }
+  /// Set the client data.
+  self& setData(
+    void* data ///< Client data.
+  ) {
+    _data = data;
+    return *this;
+  }
+protected:
+  
+  /// Set the minimum value of the interval.
+  /// @return This interval.
+  self& setMin(
+    ArgType min ///< Minimum value (host order).
+  ) {
+    _min = min;
+    _sa._min.sin_addr.s_addr = htonl(min);
+    return *this;
+  }
+  
+  /// Set the maximum value of the interval.
+  /// @return This interval.
+  self& setMax(
+    ArgType max ///< Maximum value (host order).
+  ) {
+    _max = max;
+    _sa._max.sin_addr.s_addr = htonl(max);
+    return *this;
+  }
+  
+  /** Set the maximum value to one less than @a max.
+      @return This object.
+  */
+  self& setMaxMinusOne(
+    ArgType max ///< One more than maximum value.
+  ) {
+    return this->setMax(max-1);
+  }
+  /** Set the minimum value to one more than @a min.
+      @return This object.
+  */
+  self& setMinPlusOne(
+    ArgType min ///< One less than minimum value.
+  ) {
+    return this->setMin(min+1);
+  }
+  /** Decremement the maximum value in place.
+      @return This object.
+  */
+  self& decrementMax() {
+    this->setMax(_max-1);
+    return *this;
+  }
+  /** Increment the minimum value in place.
+      @return This object.
+  */
+  self& incrementMin() {
+    this->setMin(_min+1);
+    return *this;
+  }
+
+  /// Increment a metric.
+  static void inc(
+    Metric& m ///< Incremented in place.
+  ) {
+    ++m;
+  }
+  
+  /// Decrement a metric.
+  static void dec(
+    Metric& m ///< Decremented in place.
+  ) {
+    --m;
+  }
+  
+  /// @return Dereferenced @a addr.
+  static Metric deref(
+    ArgType addr ///< Argument to dereference.
+  ) {
+    return addr;
+  }
+
+  /// @return The argument type for the @a metric.
+  static ArgType argue(
+    Metric const& metric
+  ) {
+    return metric;
+  }
+  
+  struct {
+    sockaddr_in _min;
+    sockaddr_in _max;
+  } _sa; ///< Addresses in API compliant form.
+
+};
+
+class Ip4Map : public IpMapBase<Ip4Node> {
+  friend class ::IpMap;
+};
+
+//----------------------------------------------------------------------------
+typedef Interval<sockaddr_in6> Ip6Span;
+
+/** Node for IPv6 map.
+*/
+class Ip6Node : public IpMap::Node, protected Ip6Span {
+  friend struct IpMapBase<Ip6Node>;
+public:
+  typedef Ip6Node self; ///< Self reference type.
+  /// Override @c ArgType from @c Interval because the convention
+  /// is to use a pointer, not a reference.
+  typedef Metric const* ArgType;
+
+  /// Construct from pointers.
+  Ip6Node(
+    ArgType min, ///< Minimum address (network order).
+    ArgType max, ///< Maximum address (network order).
+    void* data ///< Client data.
+  ) : Node(data), Ip6Span(*min, *max) {
+  }
+  /// Construct with values.
+  Ip6Node(
+    Metric const& min, ///< Minimum address (network order).
+    Metric const& max, ///< Maximum address (network order).
+    void* data ///< Client data.
+  ) : Node(data), Ip6Span(min, max) {
+  }
+  /// @return The minimum value of the interval.
+  virtual sockaddr const* min() const {
+    return ats_ip_sa_cast(&_min);
+  }
+  /// @return The maximum value of the interval.
+  virtual sockaddr const* max() const {
+    return ats_ip_sa_cast(&_max);
+  }
+  /// Set the client data.
+  self& setData(
+    void* data ///< Client data.
+  ) {
+    _data = data;
+    return *this;
+  }
+protected:
+  
+  /// Set the minimum value of the interval.
+  /// @return This interval.
+  self& setMin(
+    ArgType min ///< Minimum value (host order).
+  ) {
+    ats_ip_copy(ats_ip_sa_cast(&_min), ats_ip_sa_cast(min));
+    return *this;
+  }
+  
+  /// Set the minimum value of the interval.
+  /// @note Convenience overload.
+  /// @return This interval.
+  self& setMin(
+    Metric const& min ///< Minimum value (host order).
+  ) {
+    return this->setMin(&min);
+  }
+  
+  /// Set the maximum value of the interval.
+  /// @return This interval.
+  self& setMax(
+    ArgType max ///< Maximum value (host order).
+  ) {
+    ats_ip_copy(ats_ip_sa_cast(&_max), ats_ip_sa_cast(max));
+    return *this;
+  }
+  /// Set the maximum value of the interval.
+  /// @note Convenience overload.
+  /// @return This interval.
+  self& setMax(
+    Metric const& max ///< Maximum value (host order).
+  ) {
+    return this->setMax(&max);
+  }
+  /** Set the maximum value to one less than @a max.
+      @return This object.
+  */
+  self& setMaxMinusOne(
+    Metric const& max ///< One more than maximum value.
+  ) {
+    this->setMax(max);
+    dec(_max);
+    return *this;
+  }
+  /** Set the minimum value to one more than @a min.
+      @return This object.
+  */
+  self& setMinPlusOne(
+    Metric const& min ///< One less than minimum value.
+  ) {
+    this->setMin(min);
+    inc(_min);
+    return *this;
+  }
+  /** Decremement the maximum value in place.
+      @return This object.
+  */
+  self& decrementMax() { dec(_max); return *this; }
+  /** Increment the mininimum value in place.
+      @return This object.
+  */
+  self& incrementMin() { inc(_min); return *this; }
+  
+  /// Increment a metric.
+  static void inc(
+    Metric& m ///< Incremented in place.
+  ) {
+    uint8_t* addr = m.sin6_addr.s6_addr;
+    uint8_t* b = addr + TS_IP6_SIZE;
+    // Ripple carry. Walk up the address incrementing until we don't
+    // have a carry.
+    do {
+      ++*--b;
+    } while (b > addr && 0 == *b);
+  }
+  
+  /// Decrement a metric.
+  static void dec(
+    Metric& m ///< Decremented in place.
+  ) {
+    uint8_t* addr = m.sin6_addr.s6_addr;
+    uint8_t* b = addr + TS_IP6_SIZE;
+    // Ripple borrow. Walk up the address decrementing until we don't
+    // have a borrow.
+    do {
+      --*--b;
+    } while (b > addr && static_cast<uint8_t>(0xFF) == *b);
+  }
+  /// @return Dereferenced @a addr.
+  static Metric const& deref(
+    ArgType addr ///< Argument to dereference.
+  ) {
+    return *addr;
+  }
+  
+  /// @return The argument type for the @a metric.
+  static ArgType argue(
+    Metric const& metric
+  ) {
+    return &metric;
+  }
+  
+};
+
+// We declare this after the helper operators and inside this namespace
+// so that the template uses these for comparisons.
+
+class Ip6Map : public IpMapBase<Ip6Node> {
+  friend class ::IpMap;
+};
+
+}} // end ts::detail
+//----------------------------------------------------------------------------
+IpMap::~IpMap() {
+  delete _m4;
+  delete _m6;
+}
+
+inline ts::detail::Ip4Map*
+IpMap::force4() {
+  if (!_m4) _m4 = new ts::detail::Ip4Map;
+  return _m4;
+}
+
+inline ts::detail::Ip6Map*
+IpMap::force6() {
+  if (!_m6) _m6 = new ts::detail::Ip6Map;
+  return _m6;
+}
+
+bool
+IpMap::contains(sockaddr const* target, void** ptr) const {
+  bool zret = false;
+  if (AF_INET == target->sa_family) {
+    zret = _m4 && _m4->contains(ntohl(ats_ip4_addr_cast(target)), ptr);
+  } else if (AF_INET6 == target->sa_family) {
+    zret = _m6 && _m6->contains(ats_ip6_cast(target), ptr);
+  }
+  return zret;
+}
+
+bool
+IpMap::contains(in_addr_t target, void** ptr) const {
+  return _m4 && _m4->contains(ntohl(target), ptr);
+}
+
+IpMap&
+IpMap::mark(
+  sockaddr const* min,
+  sockaddr const* max,
+  void* data
+) {
+  ink_assert(min->sa_family == max->sa_family);
+  if (AF_INET == min->sa_family) {
+    this->force4()->mark(
+      ntohl(ats_ip4_addr_cast(min)),
+      ntohl(ats_ip4_addr_cast(max)),
+      data
+    );
+  } else if (AF_INET6 == min->sa_family) {
+    this->force6()->mark(ats_ip6_cast(min), ats_ip6_cast(max), data);
+  }
+  return *this;
+}
+
+IpMap&
+IpMap::mark(in_addr_t min, in_addr_t max, void* data) {
+  this->force4()->mark(ntohl(min), ntohl(max), data);
+  return *this;
+}
+
+IpMap&
+IpMap::unmark(
+  sockaddr const* min,
+  sockaddr const* max
+) {
+  ink_assert(min->sa_family == max->sa_family);
+  if (AF_INET == min->sa_family) {
+    if (_m4)
+      _m4->unmark(
+        ntohl(ats_ip4_addr_cast(min)),
+        ntohl(ats_ip4_addr_cast(max))
+      );
+  } else if (AF_INET6 == min->sa_family) {
+    if (_m6) _m6->unmark(ats_ip6_cast(min), ats_ip6_cast(max));
+  }
+  return *this;
+}
+
+IpMap&
+IpMap::unmark(in_addr_t min, in_addr_t max) {
+  if (_m4) _m4->unmark(ntohl(min), ntohl(max));
+  return *this;
+}
+
+IpMap&
+IpMap::fill(
+  sockaddr const* min,
+  sockaddr const* max,
+  void* data
+) {
+  ink_assert(min->sa_family == max->sa_family);
+  if (AF_INET == min->sa_family) {
+    this->force4()->fill(
+      ntohl(ats_ip4_addr_cast(min)),
+      ntohl(ats_ip4_addr_cast(max)),
+      data
+    );
+  } else if (AF_INET6 == min->sa_family) {
+    this->force6()->fill(ats_ip6_cast(min), ats_ip6_cast(max), data);
+  }
+  return *this;
+}
+
+IpMap&
+IpMap::fill(in_addr_t min, in_addr_t max, void* data) {
+  this->force4()->fill(ntohl(min), ntohl(max), data);
+  return *this;
+}
+
+size_t
+IpMap::getCount() const {
+  size_t zret = 0;
+  if (_m4) zret += _m4->getCount();
+  if (_m6) zret += _m6->getCount();
+  return zret;
+}
+
+IpMap&
+IpMap::clear() {
+  if (_m4) _m4->clear();
+  if (_m6) _m6->clear();
+  return *this;
+}
+
+IpMap::iterator
+IpMap::begin() {
+  Node* x = 0;
+  if (_m4) x = _m4->getHead();
+  if (!x && _m6) x = _m6->getHead();
+  return iterator(this, x);
+}
+
+IpMap::iterator&
+IpMap::iterator::operator ++ () {
+  if (_node) {
+    // If we go past the end of the list see if it was the v4 list
+    // and if so, move to the v6 list (if it's there).
+    Node* x = static_cast<Node*>(_node->_next);
+    if (!x && _tree->_m4 && _tree->_m6 && _node == _tree->_m4->getTail())
+      x = _tree->_m6->getHead();
+    _node = x;
+  }
+  return *this;
+}
+
+inline IpMap::iterator&
+IpMap::iterator::operator--() {
+  if (_node) {
+    // At a node, try to back up. Handle the case where we back over the
+    // start of the v6 addresses and switch to the v4, if there are any.
+    Node* x = static_cast<Node*>(_node->_prev);
+    if (!x && _tree->_m4 && _tree->_m6 && _node == _tree->_m6->getHead())
+      x = _tree->_m4->getTail();
+    _node = x;
+  } else if (_tree) {
+    // We were at the end. Back up to v6 if possible, v4 if not.
+    if (_tree->_m6) _node = _tree->_m6->getTail();
+    if (!_node && _tree->_m4) _node = _tree->_m4->getTail();
+  }
+  return *this;
+}
+
+
+//----------------------------------------------------------------------------
+//----------------------------------------------------------------------------
+
diff --git a/lib/ts/IpMap.h b/lib/ts/IpMap.h
new file mode 100644
index 00000000..2a16269c
--- /dev/null
+++ b/lib/ts/IpMap.h
@@ -0,0 +1,560 @@
+# if ! defined(TS_IP_MAP_HEADER)
+# define TS_IP_MAP_HEADER
+
+# include "ink_platform.h"
+# include "ink_defs.h"
+# include <ts/ink_inet.h>
+# include <ts/IntrusiveDList.h>
+# include <ts/ink_assert.h>
+
+/** @file
+
+    Map of IP addresses to client data.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+namespace ts { namespace detail {
+
+  /** Interval class.
+      This holds an interval based on a metric @a T along with
+      client data.
+  */
+  template <
+    typename T, ///< Metric for span.
+    typename A  = T const& ///< Argument type.
+  > struct Interval {
+    typedef T Metric; ///< Metric (storage) type.
+    typedef A ArgType; ///< Type used to pass instances of @c Metric.
+
+    Interval() {} ///< Default constructor.
+    /// Construct with values.
+    Interval(
+      ArgType min, ///< Minimum value in span.
+      ArgType max ///< Maximum value in span.
+    ) : _min(min), _max(max) {}
+    Metric _min; ///< Minimum value in span.
+    Metric _max; ///< Maximum value in span.
+  };
+
+  class Ip4Map; // Forward declare.
+  class Ip6Map; // Forward declare.
+
+  /** A node in a red/black tree.
+
+      This class provides only the basic tree operations. The client
+      must provide the search and decision logic. This enables this
+      class to be a base class for templated nodes with much less code
+      duplication.
+  */
+  struct RBNode {
+    typedef RBNode self; ///< self reference type
+
+    /// Node colors
+    typedef enum { RED, BLACK } Color;
+
+    /// Directional constants
+    typedef enum { NONE, LEFT, RIGHT } Direction;
+
+    /// Get a child by direction.
+    /// @return The child in the direction @a d if it exists,
+    /// @c NULL if not.
+    self* getChild(
+      Direction d //!< The direction of the desired child
+    ) const;
+
+    /** Determine which child a node is
+        @return @c LEFT if @a n is the left child,
+        @c RIGHT if @a n is the right child,
+        @c NONE if @a n is not a child
+    */
+    Direction getChildDirection(
+      self* const& n //!< The presumed child node
+    ) const {
+      return (n == _left) ? LEFT : (n == _right) ? RIGHT : NONE;
+    }
+
+    /** Get the parent node.
+        @return A Node* to the parent node or a @c nil Node* if no parent.
+    */
+    self* getParent() const { return const_cast<self*>(_parent); }
+
+    /// @return The color of the node.
+    Color getColor() const { return _color; }
+
+    /** Reverse a direction
+        @return @c LEFT if @a d is @c RIGHT, @c RIGHT if @a d is @c LEFT,
+        @c NONE otherwise.
+    */
+    Direction flip(Direction d) {
+      return LEFT == d ? RIGHT : RIGHT == d ? LEFT : NONE;
+    }
+
+    /** Perform internal validation checks.
+        @return 0 on failure, black height of the tree on success.
+    */
+    int validate();
+
+    /// Default constructor.
+    RBNode()
+      : _color(RED)
+      , _parent(0)
+      , _left(0)
+      , _right(0)
+      , _next(0)
+      , _prev(0) {
+    }
+
+    /// Destructor (force virtual).
+    virtual ~RBNode() { }
+
+    /** Rotate the subtree rooted at this node.
+        The node is rotated in to the position of one of its children.
+        Which child is determined by the direction parameter @a d. The
+        child in the other direction becomes the new root of the subtree.
+
+        If the parent pointer is set, then the child pointer of the original
+        parent is updated so that the tree is left in a consistent state.
+
+        @note If there is no child in the other direction, the rotation
+        fails and the original node is returned. It is @b not required
+        that a child exist in the direction specified by @a d.
+
+        @return The new root node for the subtree.
+    */
+    self* rotate(
+      Direction d //!< The direction to rotate
+    );
+
+    /** Set the child node in direction @a d to @a n.
+        The @a d child is set to the node @a n. The pointers in this
+        node and @a n are set correctly. This can only be called if
+        there is no child node already present.
+
+        @return @a n.
+    */
+    self* setChild(
+      self* n, //!< The node to set as the child
+      Direction d //!< The direction of the child
+    );
+
+    /** Remove this node from the tree.
+        The tree is rebalanced after removal.
+        @return The new root node.
+    */
+    self* remove();
+
+    void clearChild(Direction dir) {
+      if (LEFT == dir) _left = 0;
+      else if (RIGHT == dir) _right = 0;
+    }
+
+    /** @name Subclass hook methods */
+    //@{
+    /** Structural change notification.
+        This method is called if the structure of the subtree rooted at
+        this node was changed.
+			
+        This is intended a hook. The base method is empty so that subclasses
+        are not required to override.
+    */
+    virtual void structureFixup() {}
+
+    /** Called from @c validate to perform any additional validation checks.
+        Clients should chain this if they wish to perform additional checks.
+        @return @c true if the validation is successful, @c false otherwise.
+        @note The base method simply returns @c true.
+    */
+    virtual bool structureValidate() { return true; }
+    //@}
+
+    /** Replace this node with another node.
+        This is presumed to be non-order modifying so the next reference
+        is @b not updated.
+    */
+    void replaceWith(
+      self* n //!< Node to put in place of this node.
+    );
+
+    //! Rebalance the tree starting at this node
+    /** The tree is rebalanced so that all of the invariants are
+        true. The (potentially new) root of the tree is returned.
+
+        @return The root node of the tree after the rebalance.
+    */
+    self* rebalanceAfterInsert();
+		
+    /** Rebalance the tree after a deletion.
+        Called on the lowest modified node.
+        @return The new root of the tree.
+    */
+    self* rebalanceAfterRemove(
+      Color c, //!< The color of the removed node.
+      Direction d //!< Direction of removed node from parent
+    );
+
+    //! Invoke @c structure_fixup() on this node and all of its ancestors.
+    self* rippleStructureFixup();
+
+    Color _color;  ///< node color
+    self* _parent; ///< parent node (needed for rotations)
+    self* _left;   ///< left child
+    self* _right;  ///< right child
+    self* _next; ///< Next node.
+    self* _prev; ///< Previous node.
+  };
+
+}} // namespace ts::detail
+
+/** Map from IP addresses to client data.
+
+    Conceptually this class maps the entire space of IP addresses to
+    client data. Client data is stored as a @c (void*). Memory
+    management of the data is left to the client. The interface
+    supports marking ranges of addresses with a specific client
+    data. Marking takes a painter's algorithm approach -- any marking
+    overwrites any previous marking on an address. Details of marking
+    calls are discarded and only the final results are kept. That is,
+    a client cannot unmark expliticly any previous marking. Only a
+    specific range of addresses can be unmarked.
+
+    Both IPv4 and IPv6 are supported in the same map. Mixed ranges are
+    not supported (any particular range of addresses must be a single
+    protocol but ranges of both types can be in the map).
+
+    Use @c mark to mark / set / add addresses to the map.
+    Use @c unmark to unset addresses (setting the client data to 0 does
+    @b not remove the address -- this is for the convenience of clients
+    that do not need data, only membership). @c contains tests for
+    membership and retrieves the client data.
+
+    Ranges can be marked and unmarked arbitrarily. The internal
+    representation keeps a minimal set of ranges to describe the
+    current addresses. Search time is O(log n) where n is the number
+    of disjoint ranges. Marking and unmarking can take O(log n) and
+    may require memory allocation / deallocation although this is
+    minimized.
+
+*/
+
+class IpMap {
+public:
+  typedef IpMap self; ///< Self reference type.
+
+  class iterator; // forward declare.
+  
+  /** Public API for intervals in the map.
+  */
+  class Node : protected ts::detail::RBNode {
+    friend class iterator;
+    friend class IpMap;
+  public:
+    typedef Node self; ///< Self reference type.
+    /// Default constructor.
+    Node() : _data(0) {}
+    /// Construct with @a data.
+    Node(void* data) : _data(data) {}
+    /// @return Client data for the node.
+    virtual void* data() { return _data; }
+    /// Set client data.
+    virtual self& setData(
+      void* data ///< Client data pointer to store.
+    ) {
+      _data = data;
+      return *this;
+    }
+    /// @return Minimum value of the interval.
+    virtual sockaddr const* min() const = 0;
+    /// @return Maximum value of the interval.
+    virtual sockaddr const* max() const = 0;
+  protected:
+    void* _data; ///< Client data.
+  };
+
+  /** Iterator over nodes / intervals.
+
+      The iteration is over all nodes, regardless of which node is
+      used to create the iterator. The node passed to the constructor
+      just sets the current location.
+  */
+  class iterator {
+    friend class IpMap;
+  public:
+    typedef iterator self; ///< Self reference type.
+    typedef Node value_type; ///< Referenced type for iterator.
+    typedef int difference_type; ///< Distance type.
+    typedef Node* pointer; ///< Pointer to referent.
+    typedef Node& reference; ///< Reference to referent.
+    typedef std::bidirectional_iterator_tag iterator_category;
+    /// Default constructor.
+    iterator() : _tree(0), _node(0) {}
+
+    reference operator* (); //!< value operator
+    pointer operator -> (); //!< dereference operator
+    self& operator++(); //!< next node (prefix)
+    self operator++(int); //!< next node (postfix)
+    self& operator--(); ///< previous node (prefix)
+    self operator--(int); ///< next node (postfix)
+
+    /** Equality.
+        @return @c true if the iterators refer to the same node.
+    */
+    bool operator==(self const& that) const;
+    /** Inequality.
+        @return @c true if the iterators refer to different nodes.
+    */
+    bool operator!=(self const& that) const { return ! (*this == that); }
+  private:
+    /// Construct a valid iterator.
+    iterator(IpMap* tree, Node* node) : _tree(tree), _node(node) {}
+      IpMap* _tree; ///< Container.
+      Node* _node; //!< Current node.
+    };
+
+  IpMap(); ///< Default constructor.
+  ~IpMap(); ///< Destructor.
+
+  /** Mark a range.
+      All addresses in the range [ @a min , @a max ] are marked with @a data.
+      @return This object.
+  */
+  self& mark(
+    sockaddr const* min, ///< Minimum value in range.
+    sockaddr const* max, ///< Maximum value in range.
+    void* data = 0     ///< Client data payload.
+  );
+
+  /** Mark a range.
+      All addresses in the range [ @a min , @a max ] are marked with @a data.
+      @note Convenience overload for IPv4 addresses.
+      @return This object.
+  */
+  self& mark(
+    in_addr_t min, ///< Minimum address (network order).
+    in_addr_t max, ///< Maximum address (network order).
+    void* data = 0 ///< Client data.
+  );
+
+  /** Mark an IPv4 address @a addr with @a data.
+      This is equivalent to calling @c mark(addr, addr, data).
+      @note Convenience overload for IPv4 addresses.
+      @return This object.
+  */
+  self& mark(
+    in_addr_t addr, ///< Address (network order).
+    void* data = 0 ///< Client data.
+  );
+
+  /** Mark a range.
+      All addresses in the range [ @a min , @a max ] are marked with @a data.
+      @note Convenience overload.
+      @return This object.
+  */
+  self& mark(
+    IpEndpoint const* min, ///< Minimum address (network order).
+    IpEndpoint const* max, ///< Maximum address (network order).
+    void* data = 0 ///< Client data.
+  );
+
+  /** Mark an IPv6 address @a addr with @a data.
+      This is equivalent to calling @c mark(addr, addr, data).
+      @note Convenience overload.
+      @return This object.
+  */
+  self& mark(
+    IpEndpoint const* addr, ///< Address (network order).
+    void* data = 0 ///< Client data.
+  );
+
+  /** Unmark addresses.
+
+      All addresses in the range [ @a min , @a max ] are cleared
+      (removed from the map), no longer marked.
+
+      @return This object.
+  */
+  self& unmark(
+    sockaddr const* min, ///< Minimum value.
+    sockaddr const* max  ///< Maximum value.
+  );
+  /// Unmark addresses (overload).
+  self& unmark(
+    IpEndpoint const* min,
+    IpEndpoint const* max
+  );
+  /// Unmark overload.
+  self& unmark(
+    in_addr_t min, ///< Minimum of range to unmark.
+    in_addr_t max  ///< Maximum of range to unmark.
+  );
+
+  /** Fill addresses.
+
+      This background fills using the range. All addresses in the
+      range that are @b not present in the map are added. No
+      previously present address is changed.
+
+      @note This is useful for filling in first match tables.
+
+      @return This object.
+  */
+  self& fill(
+    sockaddr const* min,
+    sockaddr const* max,
+    void* data = 0
+  );
+  /// Fill addresses (overload).
+  self& fill(
+    IpEndpoint const* min,
+    IpEndpoint const* max,
+    void* data = 0
+  );
+  /// Fill addresses (overload).
+  self& fill(
+    in_addr_t min,
+    in_addr_t max,
+    void* data = 0
+  );
+
+  /** Test for membership.
+
+      @return @c true if the address is in the map, @c false if not.
+      If the address is in the map and @a ptr is not @c NULL, @c *ptr
+      is set to the client data for the address.
+  */
+  bool contains(
+    sockaddr const* target, ///< Search target (network order).
+    void **ptr = 0 ///< Client data return.
+  ) const;
+
+  /** Test for membership.
+
+      @note Covenience overload for IPv4.
+
+      @return @c true if the address is in the map, @c false if not.
+      If the address is in the map and @a ptr is not @c NULL, @c *ptr
+      is set to the client data for the address.
+  */
+  bool contains(
+    in_addr_t target, ///< Search target (network order).
+    void **ptr = 0 ///< Client data return.
+  ) const;
+
+  bool contains(
+    IpEndpoint const* target, ///< Search target (network order).
+    void **ptr = 0 ///< Client data return.
+  ) const;
+
+  /** Remove all addresses from the map.
+
+      @note This is much faster than @c unmark.
+      @return This object.
+  */
+  self& clear();
+
+  /// Iterator for first element.
+  iterator begin();
+  /// Iterator past last element.
+  iterator end();
+  /// @return Number of distinct ranges in the map.
+  size_t getCount() const;
+
+  /** Validate internal data structures.
+      @note Intended for debugging, not general client use.
+  */
+  void validate();
+
+  /// Print all spans.
+  /// @return This map.
+  //  self& print();
+
+protected:
+  /// Force the IPv4 map to exist.
+  /// @return The IPv4 map.
+  ts::detail::Ip4Map* force4();
+  /// Force the IPv6 map to exist.
+  /// @return The IPv6 map.
+  ts::detail::Ip6Map* force6();
+  
+  ts::detail::Ip4Map* _m4; ///< Map of IPv4 addresses.
+  ts::detail::Ip6Map* _m6; ///< Map of IPv6 addresses.
+  
+};
+
+inline IpMap& IpMap::mark(in_addr_t addr, void* data) {
+  return this->mark(addr, addr, data);
+}
+
+inline IpMap& IpMap::mark(IpEndpoint const* addr, void* data) {
+  return this->mark(&addr->sa, &addr->sa, data);
+}
+
+inline IpMap& IpMap::mark(IpEndpoint const* min, IpEndpoint const* max, void* data) {
+  return this->mark(&min->sa, &max->sa, data);
+}
+
+inline IpMap& IpMap::unmark(IpEndpoint const* min, IpEndpoint const* max) {
+  return this->unmark(&min->sa, &max->sa);
+}
+
+inline IpMap& IpMap::fill(IpEndpoint const* min, IpEndpoint const* max, void* data) {
+  return this->fill(&min->sa, &max->sa, data);
+}
+
+inline bool IpMap::contains(IpEndpoint const* target, void** ptr) const {
+  return this->contains(&target->sa, ptr);
+}
+
+inline IpMap::iterator
+IpMap::end() {
+  return iterator(this, 0);
+}
+
+inline IpMap::iterator
+IpMap::iterator::operator ++ (int) {
+  iterator old(*this);
+  ++*this;
+  return old;
+}
+
+inline IpMap::iterator
+IpMap::iterator::operator--(int) {
+  self tmp(*this);
+  --*this;
+  return tmp;
+}
+
+inline bool
+IpMap::iterator::operator == (iterator const& that) const {
+  return _tree == that._tree && _node == that._node;
+}
+
+inline IpMap::iterator::reference
+IpMap::iterator::operator * () {
+  return *_node;
+}
+
+inline IpMap::iterator::pointer
+IpMap::iterator::operator -> () {
+  return _node;
+}
+
+inline IpMap::IpMap() : _m4(0), _m6(0) {}
+
+# endif // TS_IP_MAP_HEADER
diff --git a/lib/ts/IpMapConf.cc b/lib/ts/IpMapConf.cc
new file mode 100644
index 00000000..97878b4f
--- /dev/null
+++ b/lib/ts/IpMapConf.cc
@@ -0,0 +1,177 @@
+/** @file
+
+  Loading @c IpMap from a configuration file.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+// Copied from IPRange.cc for backwards compatibility.
+
+# include <ts/IpMap.h>
+# include <ts/IpMapConf.h>
+# include <ts/ink_memory.h>
+
+static size_t const ERR_STRING_LEN = 256;
+static size_t const MAX_LINE_SIZE = 2048;
+
+// Returns 0 if successful, 1 if failed
+// line  Input text (source line).
+// n     Amount of data in @a line.
+// i     [in,out] Offset in line.
+// addr  [out] Destination for address.
+// err   Buffer for error string (must be ERR_STRING_LEN big).
+int
+read_addr(char *line, int n, int *i, sockaddr* addr, char* err)
+{
+  int k;
+  char dst[INET6_ADDRSTRLEN];
+  char* src = line + *i;
+  bool bracketed_p = false;
+
+  // Allow enclosing brackets to be more consistent but
+  // don't bother passing it to @c ntop.
+  if ((*i < n) && ('[' == *src)) {
+    ++*i, ++src, bracketed_p = true;
+  }
+
+  for (k = 0; k < INET6_ADDRSTRLEN && *i < n && (isxdigit(*src) || '.' == *src || ':' == *src) ; ++k, ++*i, ++src) {
+    dst[k] = *src;
+  }
+
+  if (bracketed_p && (! (*i < n) || (']' != *src))) {
+    snprintf(err, ERR_STRING_LEN, "Unclosed brackets");
+    return EINVAL;
+  }
+
+  if (k == sizeof(dst)) {
+    snprintf(err, ERR_STRING_LEN, "IP address too long");
+    return EINVAL;
+  }
+
+  dst[k] = '\0';
+  if (0 != ats_ip_pton(dst, addr)) {
+    snprintf(err, ERR_STRING_LEN, "IP address '%s' improperly formatted", dst);
+    return EINVAL;
+  }
+  return 0;
+}
+
+char *
+Load_IpMap_From_File(IpMap* map, int fd, const char *key_str)
+{
+  char* zret = 0;
+  FILE* f = fdopen(dup(fd), "r"); // dup so we don't close the original fd.
+
+  if (f) {
+    zret = Load_IpMap_From_File(map, f, key_str);
+  } else {
+    zret = (char *)ats_malloc(ERR_STRING_LEN);
+    snprintf(zret, ERR_STRING_LEN, "Unable to reopen file descriptor as stream %d:%s", errno, strerror(errno));
+  }
+  return zret;
+}
+
+// Skip space in line, returning true if more data is available
+// (not end of line).
+//
+// line    Source line.
+// n       Line length.
+// offset  Current offset
+static inline bool skip_space(char* line, int n, int& offset )
+{
+  while (offset < n && isspace(line[offset]))
+    ++offset;
+  return offset < n;
+}
+
+// Returns 0 if successful, error string otherwise
+char *
+Load_IpMap_From_File(IpMap* map, FILE* f, const char *key_str)
+{
+  int i, n, line_no;
+  int key_len = strlen(key_str);
+  IpEndpoint laddr, raddr;
+  char line[MAX_LINE_SIZE];
+  char err_buff[ERR_STRING_LEN];
+
+  // First hardcode 127.0.0.1 into the table
+  map->mark(INADDR_LOOPBACK);
+
+  line_no = 0;
+  while (fgets(line, MAX_LINE_SIZE, f)) {
+    ++line_no;
+    n = strlen(line);
+    // Find first white space which terminates the line key.
+    for ( i = 0 ; i < n && ! isspace(line[i]); ++i)
+      ;
+    if (i != key_len || 0 != strncmp(line, key_str, key_len))
+      continue;
+    // Now look for IP address
+    while (true) {
+      if (!skip_space(line, n, i))
+        break;
+
+      if (0 != read_addr(line, n,  &i, &laddr.sa, err_buff)) {
+        char *error_str = (char *)ats_malloc(ERR_STRING_LEN);
+        snprintf(error_str, ERR_STRING_LEN, "Invalid input configuration (%s) at line %d offset %d - '%s'", err_buff,
+                 line_no, i, line);
+        return error_str;
+      }
+
+      if (!skip_space(line, n, i) || line[i] == ',') {
+        // You have read an IP address. Enter it in the table
+        map->mark(&laddr);
+        if (i == n)
+          break;
+        else
+          ++i;
+      } else if (line[i] == '-') {
+        // What you have just read is the start of the range,
+        // Now, read the end of the IP range
+        ++i;
+        if (!skip_space(line, n, i)) {
+          char *error_str = (char *)ats_malloc(ERR_STRING_LEN);
+          snprintf(error_str, ERR_STRING_LEN, "Invalid input (unterminated range) at line %d offset %d - '%s'", line_no,
+                   i, line);
+          return error_str;
+        } else if (0 != read_addr(line, n, &i, &raddr.sa, err_buff)) {
+          char *error_str = (char *)ats_malloc(ERR_STRING_LEN);
+          snprintf(error_str, ERR_STRING_LEN, "Invalid input (%s) at line %d offset %d - '%s'", err_buff, line_no, i,
+                   line);
+          return error_str;
+        }
+        map->mark(&laddr.sa, &raddr.sa);
+        if (!skip_space(line, n, i))
+          break;
+        if (line[i] != ',') {
+          char *error_str = (char *)ats_malloc(ERR_STRING_LEN);
+          snprintf(error_str, ERR_STRING_LEN, "Invalid input (expecting comma) at line %d offset %d - '%s'", line_no,
+                   i, line);
+          return error_str;
+        }
+        ++i;
+      } else {
+        char *error_str = (char *)ats_malloc(ERR_STRING_LEN);
+        snprintf(error_str, ERR_STRING_LEN, "Invalid input (expecting dash or comma) at line %d offset %d", line_no, i);
+        return error_str;
+      }
+    }
+  }
+  return 0;
+}
diff --git a/lib/ts/IpMapConf.h b/lib/ts/IpMapConf.h
new file mode 100644
index 00000000..8ec0c7c4
--- /dev/null
+++ b/lib/ts/IpMapConf.h
@@ -0,0 +1,31 @@
+/** @file
+
+  Loading @c IpMap from a configuration file.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+// Copied from IPRange.cc for backwards compatibility.
+
+class IpMap; // declare in name only.
+
+// Returns 0 if successful, error string otherwise
+char* Load_IpMap_From_File(IpMap* map, int fd, char const* key_str);
+// Returns 0 if successful, error string otherwise
+char* Load_IpMap_From_File(IpMap* map, FILE* f, char const* key_str);
diff --git a/lib/ts/IpMapTest.cc b/lib/ts/IpMapTest.cc
new file mode 100644
index 00000000..ead0d486
--- /dev/null
+++ b/lib/ts/IpMapTest.cc
@@ -0,0 +1,295 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include <ts/IpMap.h>
+#include <ts/TestBox.h>
+
+void
+IpMapTestPrint(IpMap& map) {
+  printf("IpMap Dump\n");
+  for ( IpMap::iterator spot(map.begin()), limit(map.end())
+      ; spot != limit
+      ; ++spot
+  ) {
+    ip_text_buffer ipb1, ipb2;
+
+    printf("%s - %s : %p\n", ats_ip_ntop(spot->min(), ipb1, sizeof ipb1), ats_ip_ntop(spot->max(), ipb2, sizeof(ipb2)), spot->data());
+  }
+  printf("\n");
+}
+
+REGRESSION_TEST(IpMap_Basic)(RegressionTest* t, int /* atype ATS_UNUSED */, int*  pstatus) {
+  TestBox tb(t, pstatus);
+
+  IpMap map;
+  void* const markA = reinterpret_cast<void*>(1);
+  void* const markB = reinterpret_cast<void*>(2);
+  void* const markC = reinterpret_cast<void*>(3);
+  void* mark; // for retrieval
+
+  in_addr_t ip5 = htonl(5), ip9 = htonl(9);
+  in_addr_t ip10 = htonl(10), ip15 = htonl(15), ip20 = htonl(20);
+  in_addr_t ip50 = htonl(50), ip60 = htonl(60);
+  in_addr_t ip100 = htonl(100), ip120 = htonl(120), ip140 = htonl(140);
+  in_addr_t ip150 = htonl(150), ip160 = htonl(160);
+  in_addr_t ip200 = htonl(200);
+  in_addr_t ip0 = 0;
+  in_addr_t ipmax = ~static_cast<in_addr_t>(0);
+
+  *pstatus = REGRESSION_TEST_PASSED;
+
+  map.mark(ip10,ip20,markA);
+  map.mark(ip5, ip9, markA);
+  tb.check(map.getCount() == 1, "Coalesce failed");
+  tb.check(map.contains(ip9), "Range max not found.");
+  tb.check(map.contains(ip10, &mark), "Span min not found.");
+  tb.check(mark == markA, "Mark not preserved.");
+
+  map.fill(ip15, ip100, markB);
+  tb.check(map.getCount() == 2, "Fill failed.");
+  tb.check(map.contains(ip50, &mark), "Fill interior missing.");
+  tb.check(mark == markB, "Fill mark not preserved.");
+  tb.check(!map.contains(ip200), "Span min not found.");
+  tb.check(map.contains(ip15, &mark), "Old span interior not found.");
+  tb.check(mark == markA, "Fill overwrote mark.");
+
+  map.clear();
+  tb.check(map.getCount() == 0, "Clear failed.");
+
+  map.mark(ip20, ip50, markA);
+  map.mark(ip100, ip150, markB);
+  map.fill(ip10, ip200, markC);
+  tb.check(map.getCount() == 5, "Test 3 failed [expected 5, got %d].", map.getCount());
+  tb.check(map.contains(ip15, &mark), "Test 3 - left span missing.");
+  tb.check(map.contains(ip60, &mark), "Test 3 - middle span missing.");
+  tb.check(mark == markC, "Test 3 - fill mark wrong.");
+  tb.check(map.contains(ip160), "Test 3 - right span missing.");
+  tb.check(map.contains(ip120, &mark), "Test 3 - right mark span missing.");
+  tb.check(mark == markB, "Test 3 - wrong data on right mark span.");
+  map.unmark(ip140, ip160);
+  tb.check(map.getCount() == 5, "Test 3 unmark failed [expected 5, got %d].", map.getCount());
+  tb.check(!map.contains(ip140), "Test 3 - unmark left edge still there.");
+  tb.check(!map.contains(ip150), "Test 3 - unmark middle still there.");
+  tb.check(!map.contains(ip160), "Test 3 - unmark right edge still there.");
+
+  map.clear();
+  map.mark(ip20,ip20, markA);
+  tb.check(map.contains(ip20), "Map failed on singleton insert");
+  map.mark(ip10, ip200, markB);
+  mark=0;
+  map.contains(ip20, &mark);
+  tb.check(mark == markB, "Map held singleton against range.");
+  map.mark(ip100, ip120, markA);
+  map.mark(ip150, ip160, markB);
+  map.mark(ip0, ipmax, markC);
+  tb.check(map.getCount() == 1, "IpMap: Full range fill left extra ranges.");
+}
+
+REGRESSION_TEST(IpMap_Unmark)(RegressionTest* t, int /* atype ATS_UNUSED */, int* pstatus) {
+  TestBox tb(t, pstatus);
+  IpMap map;
+//  ip_text_buffer ipb1, ipb2;
+  void* const markA = reinterpret_cast<void*>(1);
+
+  IpEndpoint a_0, a_0_0_0_16, a_0_0_0_17, a_max;
+  IpEndpoint a_10_28_56_0,a_10_28_56_4, a_10_28_56_255;
+  IpEndpoint a_10_28_55_255, a_10_28_57_0;
+  IpEndpoint a_63_128_1_12;
+  IpEndpoint a_loopback, a_loopback2;
+  IpEndpoint a6_0, a6_max, a6_fe80_9d90, a6_fe80_9d9d, a6_fe80_9d95;
+
+  ats_ip_pton("0.0.0.0", &a_0);
+  ats_ip_pton("0.0.0.16", &a_0_0_0_16);
+  ats_ip_pton("0.0.0.17", &a_0_0_0_17);
+  ats_ip_pton("255.255.255.255", &a_max);
+  ats_ip_pton("10.28.55.255", &a_10_28_55_255);
+  ats_ip_pton("10.28.56.0", &a_10_28_56_0);
+  ats_ip_pton("10.28.56.4", &a_10_28_56_4);
+  ats_ip_pton("10.28.56.255", &a_10_28_56_255);
+  ats_ip_pton("10.28.57.0", &a_10_28_57_0);
+  ats_ip_pton("63.128.1.12", &a_63_128_1_12);
+  ats_ip_pton("::", &a6_0);
+  ats_ip_pton("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", &a6_max);
+  ats_ip_pton("fe80::221:9bff:fe10:9d90", &a6_fe80_9d90);
+  ats_ip_pton("fe80::221:9bff:fe10:9d9d", &a6_fe80_9d9d);
+  ats_ip_pton("fe80::221:9bff:fe10:9d95", &a6_fe80_9d95);
+  ats_ip_pton("127.0.0.1", &a_loopback);
+  ats_ip_pton("127.0.0.255", &a_loopback2);
+  *pstatus = REGRESSION_TEST_PASSED;
+
+  map.mark(&a_0, &a_max, markA);
+  tb.check(map.getCount() == 1, "IpMap Unmark: Full range not single.");
+  map.unmark(&a_10_28_56_0, &a_10_28_56_255);
+  tb.check(map.getCount() == 2, "IpMap Unmark: Range unmark failed.");
+  // Generic range check.
+  tb.check(!map.contains(&a_10_28_56_0), "IpMap Unmark: Range unmark min address not removed.");
+  tb.check(!map.contains(&a_10_28_56_255), "IpMap Unmark: Range unmark max address not removed.");
+  tb.check(map.contains(&a_10_28_55_255), "IpMap Unmark: Range unmark min-1 address removed.");
+  tb.check(map.contains(&a_10_28_57_0), "IpMap Unmark: Range unmark max+1 address removed.");
+  // Test min bounded range.
+  map.unmark(&a_0, &a_0_0_0_16);
+  tb.check(!map.contains(&a_0), "IpMap Unmark: Range unmark zero address not removed.");
+  tb.check(!map.contains(&a_0_0_0_16), "IpMap Unmark: Range unmark zero bounded range max not removed.");
+  tb.check(map.contains(&a_0_0_0_17), "IpMap Unmark: Range unmark zero bounded range max+1 removed.");
+}
+
+REGRESSION_TEST(IpMap_Fill)(RegressionTest* t, int /* atype ATS_UNUSED */, int* pstatus) {
+  TestBox tb(t, pstatus);
+  IpMap map;
+  ip_text_buffer ipb1, ipb2;
+  void* const allow = reinterpret_cast<void*>(0);
+  void* const deny = reinterpret_cast<void*>(~0); 
+  void* const markA = reinterpret_cast<void*>(1);
+  void* const markB = reinterpret_cast<void*>(2);
+  void* const markC = reinterpret_cast<void*>(3);
+  void* mark; // for retrieval
+
+  IpEndpoint a0,a_10_28_56_0,a_10_28_56_255,a3,a4;
+  IpEndpoint a_9_255_255_255, a_10_0_0_0, a_10_0_0_19, a_10_0_0_255, a_10_0_1_0;
+  IpEndpoint a_10_28_56_4, a_max, a_loopback, a_loopback2;
+  IpEndpoint a_10_28_55_255, a_10_28_57_0;
+  IpEndpoint a_63_128_1_12;
+  IpEndpoint a_0000_0000, a_0000_0001, a_ffff_ffff;
+  IpEndpoint a_fe80_9d8f, a_fe80_9d90, a_fe80_9d95, a_fe80_9d9d, a_fe80_9d9e;
+
+  *pstatus = REGRESSION_TEST_PASSED;
+
+  ats_ip_pton("0.0.0.0", &a0);
+  ats_ip_pton("255.255.255.255", &a_max);
+
+  ats_ip_pton("9.255.255.255", &a_9_255_255_255);
+  ats_ip_pton("10.0.0.0", &a_10_0_0_0);
+  ats_ip_pton("10.0.0.19", &a_10_0_0_19);
+  ats_ip_pton("10.0.0.255", &a_10_0_0_255);
+  ats_ip_pton("10.0.1.0", &a_10_0_1_0);
+
+  ats_ip_pton("10.28.55.255", &a_10_28_55_255);
+  ats_ip_pton("10.28.56.0", &a_10_28_56_0);
+  ats_ip_pton("10.28.56.4", &a_10_28_56_4);
+  ats_ip_pton("10.28.56.255", &a_10_28_56_255);
+  ats_ip_pton("10.28.57.0", &a_10_28_57_0);
+
+  ats_ip_pton("192.168.1.0", &a3);
+  ats_ip_pton("192.168.1.255", &a4);
+
+  ats_ip_pton("::", &a_0000_0000);
+  ats_ip_pton("::1", &a_0000_0001);
+  ats_ip_pton("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", &a_ffff_ffff);
+  ats_ip_pton("fe80::221:9bff:fe10:9d8f", &a_fe80_9d8f);
+  ats_ip_pton("fe80::221:9bff:fe10:9d90", &a_fe80_9d90);
+  ats_ip_pton("fe80::221:9bff:fe10:9d95", &a_fe80_9d95);
+  ats_ip_pton("fe80::221:9bff:fe10:9d9d", &a_fe80_9d9d);
+  ats_ip_pton("fe80::221:9bff:fe10:9d9e", &a_fe80_9d9e);
+
+  ats_ip_pton("127.0.0.0", &a_loopback);
+  ats_ip_pton("127.0.0.255", &a_loopback2);
+  ats_ip_pton("63.128.1.12", &a_63_128_1_12);
+
+  map.fill(&a_10_28_56_0,&a_10_28_56_255,deny);
+  map.fill(&a0,&a_max,allow);
+
+  tb.check(map.contains(&a_10_28_56_4,&mark), "IpMap Fill: Target not found.");
+  tb.check(mark == deny, "IpMap Fill: Expected deny, got allow at %s.", ats_ip_ntop(&a_10_28_56_4, ipb1, sizeof(ipb1)));
+
+  map.clear();
+  map.fill(&a_loopback, &a_loopback, allow);
+  tb.check(map.contains(&a_loopback), "IpMap fill: singleton not marked.");
+  map.fill(&a0, &a_max, deny);
+
+  mark=0;
+  tb.check(map.contains(&a_loopback, &mark), "IpMap fill: singleton marking lost.");
+  tb.check(mark == allow, "IpMap fill: overwrote existing singleton mark.");
+  if (tb.check(map.begin() != map.end(), "IpMap fill: map is empty.")) {
+    if (tb.check(++(map.begin()) != map.end(), "IpMap fill: only one range.")) {
+      tb.check(-1 == ats_ip_addr_cmp(map.begin()->max(), (++map.begin())->min()), "IpMap fill: ranges not disjoint [%s < %s].", ats_ip_ntop(map.begin()->max(), ipb1, sizeof(ipb1)), ats_ip_ntop((++map.begin())->min(), ipb2, sizeof(ipb2)));
+    }
+  }
+
+  map.clear();
+  map.fill(&a_loopback, &a_loopback2, markA);
+  map.fill(&a_10_28_56_0, &a_10_28_56_255, markB);
+  tb.check(!map.contains(&a_63_128_1_12, &mark), "IpMap fill[2]: over extended range.");
+  map.fill(&a0, &a_max, markC);
+  tb.check(map.getCount() == 5, "IpMap[2]: Fill failed.");
+  if (tb.check(map.contains(&a_63_128_1_12, &mark), "IpMap fill[2]: Collapsed range.")) {
+    tb.check(mark == markC, "IpMap fill[2]: invalid mark for range gap.");
+  }
+
+  map.clear();
+  map.fill(&a_10_0_0_0, &a_10_0_0_255, allow);
+  map.fill(&a_loopback, &a_loopback2, allow);
+  tb.check(!map.contains(&a_63_128_1_12, &mark), "IpMap fill[3]: invalid mark between ranges.");
+  tb.check(map.contains(&a_10_0_0_19, &mark) && mark == allow, "IpMap fill[3]: invalid mark in lower range.");
+  map.fill(&a0, &a_max, deny);
+  if (!tb.check(map.getCount() == 5, "IpMap[3]: Wrong number of ranges."))
+    IpMapTestPrint(map);
+  if (tb.check(map.contains(&a_63_128_1_12, &mark), "IpMap fill[3]: Missing mark between ranges")) {
+    tb.check(mark == deny, "IpMap fill[3]: gap range invalidly marked");
+  }
+
+  map.fill(&a_fe80_9d90, &a_fe80_9d9d, markA);
+  map.fill(&a_0000_0001, &a_0000_0001, markA);
+  map.fill(&a_0000_0000, &a_ffff_ffff, markB);
+
+  tb.check(map.contains(&a_0000_0000, &mark) && mark == markB,
+           "IpMap Fill[v6]: Zero address has bad mark.");
+  tb.check(map.contains(&a_ffff_ffff, &mark) && mark == markB,
+           "IpMap Fill[v6]: Max address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d90, &mark) && mark == markA,
+           "IpMap Fill[v6]: 9d90 address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d8f, &mark) && mark == markB,
+           "IpMap Fill[v6]: 9d8f address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d9d, &mark) && mark == markA,
+           "IpMap Fill[v6]: 9d9d address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d9e, &mark) && mark == markB,
+           "IpMap Fill[v6]: 9d9b address has bad mark.");
+  tb.check(map.contains(&a_0000_0001, &mark) && mark == markA,
+           "IpMap Fill[v6]: ::1 has bad mark.");
+  
+  tb.check(map.getCount() == 10, "IpMap Fill[pre-refill]: Bad range count.");
+  // These should be ignored by the map as it is completely covered for IPv6.
+  map.fill(&a_fe80_9d90, &a_fe80_9d9d, markA);
+  map.fill(&a_0000_0001, &a_0000_0001, markC);
+  map.fill(&a_0000_0000, &a_ffff_ffff, markB);
+  tb.check(map.getCount() == 10, "IpMap Fill[post-refill]: Bad range count.");
+
+  map.clear();
+  map.fill(&a_fe80_9d90, &a_fe80_9d9d, markA);
+  map.fill(&a_0000_0001, &a_0000_0001, markC);
+  map.fill(&a_0000_0000, &a_ffff_ffff, markB);
+  tb.check(map.contains(&a_0000_0000, &mark) && mark == markB,
+           "IpMap Fill[v6-2]: Zero address has bad mark.");
+  tb.check(map.contains(&a_ffff_ffff, &mark) && mark == markB,
+           "IpMap Fill[v6-2]: Max address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d90, &mark) && mark == markA,
+           "IpMap Fill[v6-2]: 9d90 address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d8f, &mark) && mark == markB,
+           "IpMap Fill[v6-2]: 9d8f address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d9d, &mark) && mark == markA,
+           "IpMap Fill[v6-2]: 9d9d address has bad mark.");
+  tb.check(map.contains(&a_fe80_9d9e, &mark) && mark == markB,
+           "IpMap Fill[v6-2]: 9d9b address has bad mark.");
+  tb.check(map.contains(&a_0000_0001, &mark) && mark == markC,
+           "IpMap Fill[v6-2]: ::1 has bad mark.");
+ 
+}
diff --git a/lib/ts/Layout.cc b/lib/ts/Layout.cc
new file mode 100644
index 00000000..cf85bd82
--- /dev/null
+++ b/lib/ts/Layout.cc
@@ -0,0 +1,226 @@
+/** @file
+
+  Implementation of the Layout class.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "I_Layout.h"
+
+static Layout *layout = NULL;
+
+Layout *
+Layout::get()
+{
+  if (layout == NULL) {
+    ink_assert("need to call create_default_layout before accessing" "default_layout()");
+  }
+  return layout;
+}
+
+void
+Layout::create(const char *prefix)
+{
+  if (layout == NULL) {
+    layout = new Layout(prefix);
+  }
+}
+
+static char *
+layout_relative(const char *root, const char *file)
+{
+  char path[PATH_NAME_MAX];
+
+  if (ink_filepath_merge(path, PATH_NAME_MAX, root, file, INK_FILEPATH_TRUENAME)) {
+    int err = errno;
+    // Log error
+    if (err == EACCES) {
+      ink_error("Cannot merge path '%s' above the root '%s'\n", file, root);
+    } else if (err == E2BIG) {
+      ink_error("Exceeding file name length limit of %d characters\n", PATH_NAME_MAX);
+    }
+    else {
+      // TODO: Make some pretty errors.
+      ink_error("Cannot merge '%s' with '%s' error=%d\n", file, root, err);
+    }
+    return NULL;
+  }
+  return ats_strdup(path);
+}
+
+char *
+Layout::relative(const char *file)
+{
+  return layout_relative(prefix, file);
+}
+
+void
+Layout::relative(char *buf, size_t bufsz, const char *file)
+{
+  char path[PATH_NAME_MAX];
+
+  if (ink_filepath_merge(path, PATH_NAME_MAX, prefix, file,
+      INK_FILEPATH_TRUENAME)) {
+    int err = errno;
+    // Log error
+    if (err == EACCES) {
+      ink_error("Cannot merge path '%s' above the root '%s'\n", file, prefix);
+    } else if (err == E2BIG) {
+      ink_error("Exceeding file name length limit of %d characters\n", PATH_NAME_MAX);
+    }
+    else {
+      // TODO: Make some pretty errors.
+      ink_error("Cannot merge '%s' with '%s' error=%d\n", file, prefix, err);
+    }
+    return;
+  }
+  size_t path_len = strlen(path) + 1;
+  if (path_len > bufsz) {
+    ink_error("Provided buffer is too small: %zu, required %zu\n", bufsz, path_len);
+  }
+  else {
+    ink_strlcpy(buf, path, bufsz);
+  }
+}
+
+char *
+Layout::relative_to(const char *dir, const char *file)
+{
+  return layout_relative(dir, file);
+}
+
+void
+Layout::relative_to(char *buf, size_t bufsz, const char *dir, const char *file)
+{
+  char path[PATH_NAME_MAX];
+
+  if (ink_filepath_merge(path, PATH_NAME_MAX, dir, file, INK_FILEPATH_TRUENAME)) {
+    int err = errno;
+    // Log error
+    if (err == EACCES) {
+      ink_error("Cannot merge path '%s' above the root '%s'\n", file, dir);
+    } else if (err == E2BIG) {
+      ink_error("Exceeding file name length limit of %d characters\n", PATH_NAME_MAX);
+    }
+    else {
+      // TODO: Make some pretty errors.
+      ink_error("Cannot merge '%s' with '%s' error=%d\n", file, dir, err);
+    }
+    return;
+  }
+  size_t path_len = strlen(path) + 1;
+  if (path_len > bufsz) {
+    ink_error("Provided buffer is too small: %zu, required %zu\n", bufsz, path_len);
+  }
+  else {
+    ink_strlcpy(buf, path, bufsz);
+  }
+}
+
+Layout::Layout(const char *_prefix)
+{
+  if (_prefix) {
+    prefix = ats_strdup(_prefix);
+  } else {
+    char *env_path;
+    char path[PATH_NAME_MAX];
+    int  len;
+
+    if ((env_path = getenv("TS_ROOT"))) {
+      len = strlen(env_path);
+      if ((len + 1) > PATH_NAME_MAX) {
+        ink_error("TS_ROOT environment variable is too big: %d, max %d\n", len, PATH_NAME_MAX -1);
+        return;
+      }
+      ink_strlcpy(path, env_path, sizeof(path));
+      while (len > 1 && path[len - 1] == '/') {
+        path[len - 1] = '\0';
+        --len;
+      }
+    } else {
+        // Use compile time --prefix
+      ink_strlcpy(path, TS_BUILD_PREFIX, sizeof(path));
+    }
+
+    prefix = ats_strdup(path);
+  }
+  exec_prefix = layout_relative(prefix, TS_BUILD_EXEC_PREFIX);
+  bindir = layout_relative(prefix, TS_BUILD_BINDIR);
+  sbindir = layout_relative(prefix, TS_BUILD_SBINDIR);
+  sysconfdir = layout_relative(prefix, TS_BUILD_SYSCONFDIR);
+  datadir = layout_relative(prefix, TS_BUILD_DATADIR);
+  includedir = layout_relative(prefix, TS_BUILD_INCLUDEDIR);
+  libdir = layout_relative(prefix, TS_BUILD_LIBDIR);
+  libexecdir = layout_relative(prefix, TS_BUILD_LIBEXECDIR);
+  localstatedir = layout_relative(prefix, TS_BUILD_LOCALSTATEDIR);
+  runtimedir = layout_relative(prefix, TS_BUILD_RUNTIMEDIR);
+  logdir = layout_relative(prefix, TS_BUILD_LOGDIR);
+  mandir = layout_relative(prefix, TS_BUILD_MANDIR);
+  infodir = layout_relative(prefix, TS_BUILD_INFODIR);
+  cachedir = layout_relative(prefix, TS_BUILD_CACHEDIR);
+
+#ifdef DEBUG
+// TODO: Use a propper Debug logging
+//
+#define PrintSTR(var) \
+  fprintf(stderr, "%18s = '%s'\n", "--" #var, (var == NULL? "NULL" : var));
+
+  fprintf(stderr, "Layout configuration\n");
+  PrintSTR(prefix);
+  PrintSTR(exec_prefix);
+  PrintSTR(bindir);
+  PrintSTR(sbindir);
+  PrintSTR(sysconfdir);
+  PrintSTR(datadir);
+  PrintSTR(includedir);
+  PrintSTR(libdir);
+  PrintSTR(libexecdir);
+  PrintSTR(localstatedir);
+  PrintSTR(runtimedir);
+  PrintSTR(logdir);
+  PrintSTR(mandir);
+  PrintSTR(infodir);
+  PrintSTR(cachedir);
+#endif
+
+  if (access(prefix, F_OK) == -1) {
+    ink_error("unable to access() TS_ROOT '%s': %d, %s\n", prefix, errno, strerror(errno));
+  }
+}
+
+Layout::~Layout()
+{
+  ats_free(prefix);
+  ats_free(exec_prefix);
+  ats_free(bindir);
+  ats_free(sbindir);
+  ats_free(sysconfdir);
+  ats_free(datadir);
+  ats_free(includedir);
+  ats_free(libdir);
+  ats_free(libexecdir);
+  ats_free(localstatedir);
+  ats_free(runtimedir);
+  ats_free(logdir);
+  ats_free(mandir);
+  ats_free(infodir);
+  ats_free(cachedir);
+}
+
diff --git a/lib/ts/List.h b/lib/ts/List.h
new file mode 100644
index 00000000..ffe997ae
--- /dev/null
+++ b/lib/ts/List.h
@@ -0,0 +1,502 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  List.h
+
+  This file implements singly and doubly linked list templates for
+  homomorphic lists.
+
+  There are two main data structures defined for each list, a link cell
+  and a list descriptor.  Both are parameterized by template object class.
+  The link cell and list descriptor are named as follows:
+
+  list type		1-linked list	2-linked list	queue
+  ---------		-------------	-------------	-----
+  link cell		SLink<C>	Link<C>	        Link<C>
+  list descriptor	SLL<C>	        DLL<C>	        Queue<C>
+
+  The list descriptor contains state about the lists (for example: head and
+  tail pointers) and supports list manipulation methods.
+
+  The link cell strings objects together in the list, and is normally part
+  of the object itself.  An SLink only points to the next object.  A Link
+  points both to the previous and the next object in a list.
+
+  The link() method can help find the location of the location of the link
+  cell within an object, given the location of the link cell in another
+  object.  This is useful when iterating along lists.
+
+
+ ****************************************************************************/
+
+#ifndef _List_h_
+#define	_List_h_
+
+#include <stdint.h>
+
+#include "ink_assert.h"
+#include "ink_queue.h"
+#include "Compatability.h"
+#include "defalloc.h"
+
+//
+//      Link cell for singly-linked list of objects of type C.
+//
+template <class C> class SLink {
+ public:
+  C *next;
+  SLink() : next(NULL) {};
+};
+#define SLINK(_c,_f) class Link##_##_f : public SLink<_c> { public:    \
+    static _c *& next_link(_c *c) { return c->_f.next; }                \
+    static const _c * next_link(const _c *c) { return c->_f.next; } \
+  }; SLink<_c> _f
+#define SLINKM(_c,_m,_f) class Link##_##_m##_##_f : public SLink<_c> { public: \
+    static _c *& next_link(_c *c) { return c->_m._f.next; }             \
+  };
+
+//
+//      Link cell for doubly-linked list of objects of type C.
+//
+template <class C> struct Link : public SLink<C> {
+  C *prev;
+  Link() : prev(NULL) {}
+};
+#define LINK(_c,_f) class Link##_##_f : public Link<_c> { public:       \
+    static _c *& next_link(_c *c) { return c->_f.next; }                \
+    static _c *& prev_link(_c *c) { return c->_f.prev; }                \
+    static const _c * next_link(const _c *c) { return c->_f.next; }     \
+    static const _c * prev_link(const _c *c) { return c->_f.prev; }     \
+  }; Link<_c> _f
+#define LINKM(_c,_m,_f) class Link##_##_m##_##_f : public Link<_c> { public:  \
+    static _c *& next_link(_c *c) { return c->_m._f.next; }             \
+    static _c *& prev_link(_c *c) { return c->_m._f.prev; }             \
+  };
+#define LINK_FORWARD_DECLARATION(_c,_f) class Link##_##_c##_##_f : public Link<_c> { public:     \
+    static _c *& next_link(_c *c);                                      \
+    static _c *& prev_link(_c *c);                                      \
+  };
+#define LINK_DEFINITION(_c,_f)  \
+  inline _c *& Link##_##_c##_##_f::next_link(_c *c) { return c->_f.next; } \
+  inline _c *& Link##_##_c##_##_f::prev_link(_c *c) { return c->_f.prev; } \
+
+//
+//      List descriptor for singly-linked list of objects of type C.
+//
+template <class C, class L = typename C::Link_link> class SLL {
+ public:
+  C *head;
+  bool empty() const { return head == NULL; }
+  void push(C *e);
+  C *pop();
+  void clear() { head = NULL; }
+  C *& next(C *e) { return L::next_link(e); }
+  const C * next(const C *e) const { return L::next_link(e); }
+
+  SLL() : head(NULL) {}
+  SLL(C *c) : head(c) {}
+};
+#define SList(_c, _f)  SLL<_c, _c::Link##_##_f>
+#define SListM(_c, _m, _ml, _l) SLL<_c, _c::Link##_##_ml##_##_l>
+#define forl_LL(_c, _p, _l) for (_c *_p = (_l).head; _p; _p = (_l).next(_p))
+
+template <class C, class L> inline void
+SLL<C,L>::push(C *e) {
+  next(e) = head;
+  head = e;
+}
+
+template <class C, class L> inline C *
+SLL<C,L>::pop() {
+  C *ret = head;
+  if (ret) {
+    head = next(ret);
+    next(ret) = NULL;
+  }
+  return ret;
+}
+
+//
+//      List descriptor for doubly-linked list of objects of type C.
+//
+template <class C, class L = typename C::Link_link> struct DLL {
+  C *head;
+  bool empty() const { return head == NULL; }
+  void push(C *e);
+  C *pop();
+  void remove(C *e);
+  void insert(C *e, C *after);
+  bool in(C *e) { return head == e || next(e) || prev(e); }
+  void clear() { head = NULL; }
+  C *&next(C *e) { return *(C**)&L::next_link(e); }
+  C *&prev(C *e) { return *(C**)&L::prev_link(e); }
+  const C *next(const C *e) const { return L::next_link(e); }
+  const C *prev(const C *e) const { return L::prev_link(e); }
+
+  DLL() : head(NULL) {}
+};
+#define DList(_c, _f)  DLL<_c, _c::Link##_##_f>
+#define DListM(_c, _m, _ml, _l) DLL<_c, _c::Link##_##_ml##_##_l>
+
+template <class C, class L> inline void
+DLL<C,L>::push(C *e) {
+  if (head)
+    prev(head) = e;
+  next(e) = head;
+  head = e;
+}
+
+template <class C, class L> inline void
+DLL<C,L>::remove(C *e) {
+  if (!head) return;
+  if (e == head) head = next(e);
+  if (prev(e)) next(prev(e)) = next(e);
+  if (next(e)) prev(next(e)) = prev(e);
+  prev(e) = NULL;
+  next(e) = NULL;
+}
+
+template <class C, class L> inline C *
+DLL<C,L>::pop() {
+  C *ret = head;
+  if (ret) {
+    head = next(ret);
+    if (head)
+      prev(head) = NULL;
+    next(ret) = NULL;
+    return ret;
+  } else
+    return NULL;
+}
+
+template <class C, class L> inline void
+DLL<C,L>::insert(C *e, C *after) {
+  if (!after) { push(e); return; }
+  prev(e) = after;
+  next(e) = next(after);
+  next(after) = e;
+  if (next(e)) prev(next(e)) = e;
+}
+
+//
+//      List descriptor for queue of objects of type C.
+//
+template <class C, class L = typename C::Link_link> class Queue : public DLL<C,L> {
+ public:
+  using DLL<C,L>::head;
+  C *tail;
+  void push(C *e);
+  C *pop();
+  void enqueue(C *e);
+  void in_or_enqueue(C *e);
+  C *dequeue();
+  void remove(C *e);
+  void insert(C *e, C *after);
+  void append(Queue<C,L> q);
+  void append(DLL<C,L> q);
+  void clear() { head = NULL; tail = NULL; }
+  bool empty() const { return head == NULL; }
+
+  Queue() : tail(NULL) {}
+};
+#define Que(_c, _f) Queue<_c, _c::Link##_##_f>
+#define QueM(_c, _m, _mf, _f) Queue<_c, _c::Link##_##_mf##_##_f>
+
+template <class C, class L> inline void
+Queue<C,L>::push(C *e) {
+  DLL<C,L>::push(e);
+  if (!tail) tail = head;
+}
+
+template <class C, class L> inline C *
+Queue<C,L>::pop() {
+  C *ret = DLL<C,L>::pop();
+  if (!head) tail = NULL;
+  return ret;
+}
+
+template <class C, class L> inline void
+Queue<C,L>::insert(C *e, C *after) {
+  DLL<C,L>::insert(e, after);
+  if (!tail)
+    tail = head;
+  else if (tail == after)
+    tail = e;
+}
+
+template <class C, class L> inline void
+Queue<C,L>::remove(C *e) {
+  if (tail == e)
+    tail = (C*)this->prev(e);
+  DLL<C,L>::remove(e);
+}
+
+template <class C, class L> inline void
+Queue<C,L>::append(DLL<C,L> q) {
+  C *qtail = q.head;
+  if (qtail)
+    while (this->next(qtail))
+      qtail = this->next(qtail);
+  if (!head) {
+    head = q.head;
+    tail = qtail;
+  } else {
+    if (q.head) {
+      this->next(tail) = q.head;
+      this->prev(q.head) = tail;
+      tail = qtail;
+    }
+  }
+}
+
+template <class C, class L> inline void
+Queue<C,L>::append(Queue<C,L> q) {
+  if (!head) {
+    head = q.head;
+    tail = q.tail;
+  } else {
+    if (q.head) {
+      this->next(tail) = q.head;
+      this->prev(q.head) = tail;
+      tail = q.tail;
+    }
+  }
+}
+
+template <class C, class L> inline void
+Queue<C,L>::enqueue(C *e) {
+  if (tail)
+    insert(e, tail);
+  else
+    push(e);
+}
+
+template <class C, class L> inline void
+Queue<C,L>::in_or_enqueue(C *e) {
+  if (!this->in(e)) enqueue(e);
+}
+
+template <class C, class L> inline C *
+Queue<C,L>::dequeue() {
+  return pop();
+}
+
+//
+// Adds sorting, but requires that elements implement <
+//
+
+template<class C, class L = typename C::Link_link> struct SortableQueue: public Queue<C,L>
+{
+  using DLL<C,L>::head;
+  using Queue<C,L>::tail;
+  void sort() {
+    if (!head) return;
+    bool clean = false;
+    while (!clean) {
+      clean = true;
+      C *v = head;
+      C *n = this->next(head);
+      while (n) {
+        C *f = this->next(n);
+        if (*n < *v) {
+          clean = false;
+          // swap 'em
+          if (head == v)
+            head = n;
+          if (tail == n)
+            tail = v;
+          // fix prev (p)
+          C *p = this->prev(v);
+          if (p) {
+            this->next(p) = n;
+            this->prev(n) = p;
+          } else
+            this->prev(n) = NULL;
+          // fix follow (f)
+          if (f) {
+            this->prev(f) = v;
+            this->next(v) = f;
+          } else
+            this->next(v) = NULL;
+          // fix interior
+          this->prev(v) = n;
+          this->next(n) = v;
+        } else
+          v = n;
+        n = f;
+      }
+    }
+  }
+};
+#define SortableQue(_c, _l) SortableQueue<_c, _c::Link##_##_f>
+
+//
+// Adds counting to the Queue
+//
+
+template <class C, class L = typename C::Link_link> struct CountQueue : public Queue<C,L> {
+  int size;
+  inline CountQueue(void) : size(0) {}
+  inline void push(C *e);
+  inline C *pop();
+  inline void enqueue(C *e);
+  inline C *dequeue();
+  inline void remove(C *e);
+  inline void insert(C *e, C *after);
+  inline void append(CountQueue<C,L> &q);
+  inline void append_clear(CountQueue<C,L> &q);
+};
+#define CountQue(_c, _f) CountQueue<_c, _c::Link##_##_f>
+#define CountQueM(_c, _m, _mf, _f) CountQueue<_c, _c::Link##_##_mf##_##_f>
+
+template <class C, class L> inline void
+CountQueue<C,L>::push(C *e) {
+  Queue<C,L>::push(e);
+  size++;
+}
+
+template <class C, class L> inline C *
+CountQueue<C,L>::pop() {
+  C *ret = Queue<C,L>::pop();
+  if (ret)
+    size--;
+  return ret;
+}
+
+template <class C, class L> inline void
+CountQueue<C,L>::remove(C *e) {
+  Queue<C,L>::remove(e);
+  size--;
+}
+
+template <class C, class L> inline void
+CountQueue<C,L>::enqueue(C *e) {
+  Queue<C,L>::enqueue(e);
+  size++;
+}
+
+template <class C, class L> inline C *
+CountQueue<C,L>::dequeue() {
+  return pop();
+}
+
+template <class C, class L> inline void
+CountQueue<C,L>::insert(C *e, C *after) {
+  Queue<C,L>::insert(e, after);
+  size++;
+}
+
+template <class C, class L> inline void
+CountQueue<C,L>::append(CountQueue<C,L> &q) {
+  Queue<C,L>::append(q);
+  size += q.size;
+}
+
+template <class C, class L> inline void
+CountQueue<C,L>::append_clear(CountQueue<C,L> &q) {
+  append(q);
+  q.head = q.tail = 0;
+  q.size = 0;
+}
+
+//
+// List using cons cells
+//
+
+template <class C, class A = DefaultAlloc>
+struct ConsCell {
+  C             car;
+  ConsCell      *cdr;
+  ConsCell(C acar, ConsCell *acdr) : car(acar), cdr(acdr) {}
+  ConsCell(C acar) : car(acar), cdr(NULL) {}
+  ConsCell(ConsCell *acdr) : cdr(acdr) {}
+  static void *operator new(size_t size) { return A::alloc(size); }
+  static void operator delete(void *p, size_t /* size ATS_UNUSED */) { A::free(p); }
+};
+
+template <class C, class A = DefaultAlloc>
+struct List {
+  ConsCell<C,A> *head;
+  C first() { if (head) return head->car; else return 0; }
+  C car() { return first(); }
+  ConsCell<C,A> *rest() { if (head) return head->cdr; else return 0; }
+  ConsCell<C,A> *cdr() { return rest(); }
+  void push(C a) { head = new ConsCell<C,A>(a, head); }
+  void push() { head = new ConsCell<C,A>(head); }
+  C pop() { C a = car(); head = cdr(); return a; }
+  void clear() { head = NULL; }
+  void reverse();
+  List(C acar) : head(new ConsCell<C,A>(acar)) {}
+  List(C a, C b) : head(new ConsCell<C,A>(a, new ConsCell<C,A>(b))) {}
+  List(C a, C b, C c) : head(new ConsCell<C,A>(a, new ConsCell<C,A>(b, new ConsCell<C,A>(c)))) {}
+  List() : head(0) {}
+};
+#define forc_List(_c, _p, _l) if ((_l).head) for (_c *_p  = (_l).head; _p; _p = _p->cdr)
+
+template <class C,class A> void
+List<C,A>::reverse() {
+  ConsCell<C,A> *n, *t;
+  for (ConsCell<C,A> *p = head; p; p = n) {
+    n = p->cdr;
+    p->cdr = t;
+    t = p;
+  }
+  head = t;
+}
+
+//
+// Atomic lists
+// 
+
+template<class C, class L = typename C::Link_link> struct AtomicSLL
+{
+  void push(C * c) { ink_atomiclist_push(&al, c); }
+  C *pop() { return (C *) ink_atomiclist_pop(&al); }
+  C *popall() { return (C *) ink_atomiclist_popall(&al); }
+  bool empty() { return INK_ATOMICLIST_EMPTY(al); }
+
+  /*
+   * WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+   * only if only one thread is doing pops it is possible to have a "remove"
+   * which only that thread can use as well.
+   * WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+   */
+  C *remove(C * c) { return (C *) ink_atomiclist_remove(&al, c); }
+  C *head() { return (C *) TO_PTR(FREELIST_POINTER(al.head)); }
+  C *next(C * c) { return (C *) TO_PTR(c); }
+
+  InkAtomicList al;
+
+  AtomicSLL();
+};
+
+#define ASLL(_c, _l) AtomicSLL<_c, _c::Link##_##_l>
+#define ASLLM(_c, _m, _ml, _l) AtomicSLL<_c, _c::Link##_##_ml##_##_l>
+
+template<class C, class L> inline AtomicSLL<C,L>::AtomicSLL() {
+  ink_atomiclist_init(&al, "AtomicSLL", (uint32_t)(uintptr_t)&L::next_link((C*)0));
+}
+
+#endif  /*_List_h_*/
diff --git a/lib/ts/Makefile.am b/lib/ts/Makefile.am
new file mode 100644
index 00000000..73b04adb
--- /dev/null
+++ b/lib/ts/Makefile.am
@@ -0,0 +1,215 @@
+# libts Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+library_includedir=$(includedir)/ts
+
+library_include_HEADERS = apidefs.h
+
+noinst_PROGRAMS = mkdfa CompileParseRules
+check_PROGRAMS = test_atomic test_freelist test_arena test_List test_Map test_Vec
+TESTS = $(check_PROGRAMS)
+
+AM_CPPFLAGS = -I$(top_srcdir)/lib
+
+lib_LTLIBRARIES = libtsutil.la
+
+libtsutil_la_LDFLAGS = -no-undefined -version-info @TS_LIBTOOL_VERSION@
+libtsutil_la_LIBADD = \
+  @HWLOC_LIBS@ \
+  @LIBOBJS@ \
+  @LIBPCRE@ \
+  @OPENSSL_LIBS@ \
+  @LIBTCL@ \
+  @LIBRESOLV@ \
+  @LIBCAP@ \
+  -lc
+
+libtsutil_la_SOURCES = \
+  Allocator.h \
+  Arena.cc \
+  Arena.h \
+  Bitops.cc \
+  Bitops.h \
+  Compatability.h \
+  Diags.cc \
+  Diags.h \
+  DynArray.h \
+  EventNotify.cc \
+  EventNotify.h \
+  HostLookup.cc \
+  HostLookup.h \
+  INK_MD5.h \
+  I_Layout.h \
+  I_Version.h \
+  InkErrno.h \
+  InkPool.h \
+  IntrusiveDList.h \
+  IpMap.cc \
+  IpMap.h \
+  IpMapConf.cc \
+  IpMapConf.h \
+  Layout.cc \
+  List.h \
+  Map.h \
+  MatcherUtils.cc \
+  MatcherUtils.h \
+  MimeTable.cc \
+  MimeTable.h \
+  ParseRules.cc \
+  ParseRules.h \
+  Ptr.h \
+  RawHashTable.cc \
+  RawHashTable.h \
+  Regex.cc \
+  Regex.h \
+  Regression.cc \
+  Regression.h \
+  SimpleTokenizer.h \
+  TestBox.h \
+  TextBuffer.cc \
+  TextBuffer.h \
+  Tokenizer.cc \
+  Tokenizer.h \
+  Trie.h \
+  TsBuffer.h \
+  Vec.cc \
+  Vec.h \
+  Version.cc \
+  defalloc.h \
+  fastlz.c \
+  fastlz.h \
+  ink_aiocb.h \
+  ink_align.h \
+  ink_apidefs.h \
+  ink_args.cc \
+  ink_args.h \
+  ink_assert.cc \
+  ink_assert.h \
+  ink_atomic.h \
+  ink_auth_api.cc \
+  ink_auth_api.h \
+  ink_base64.cc \
+  ink_base64.h \
+  ink_cap.cc \
+  ink_cap.h \
+  ink_code.cc \
+  ink_code.h \
+  ink_defs.cc \
+  ink_defs.h \
+  ink_error.cc \
+  ink_error.h \
+  ink_exception.h \
+  ink_file.cc \
+  ink_file.h \
+  ink_hash_table.cc \
+  ink_hash_table.h \
+  ink_hrtime.cc \
+  ink_hrtime.h \
+  ink_inet.cc \
+  ink_inet.h \
+  ink_inout.h \
+  ink_llqueue.h \
+  ink_lockfile.h \
+  ink_memory.cc \
+  ink_memory.h \
+  ink_mutex.cc \
+  ink_mutex.h \
+  ink_platform.h \
+  ink_queue.cc \
+  ink_queue.h \
+  ink_queue_ext.cc \
+  ink_queue_ext.h \
+  ink_queue_utils.cc \
+  ink_rand.cc \
+  ink_rand.h \
+  ink_res_init.cc \
+  ink_res_mkquery.cc \
+  ink_resolver.h \
+  ink_resource.cc \
+  ink_resource.h \
+  ink_rwlock.cc \
+  ink_rwlock.h \
+  ink_sock.cc \
+  ink_sock.h \
+  ink_sprintf.cc \
+  ink_sprintf.h \
+  ink_stack_trace.cc \
+  ink_stack_trace.h \
+  ink_string++.cc \
+  ink_string++.h \
+  ink_string.cc \
+  ink_string.h \
+  ink_sys_control.cc \
+  ink_sys_control.h \
+  ink_syslog.cc \
+  ink_syslog.h \
+  ink_thread.cc \
+  ink_thread.h \
+  ink_time.cc \
+  ink_time.h \
+  libts.h \
+  llqueue.cc \
+  lockfile.cc
+
+
+#test_UNUSED_SOURCES = \
+#  load_http_hdr.cc \
+#  IntrusivePtrTest.cc \
+#  IpMapTest.cc \
+#  TestHttpHeader.cc \
+#  test_memchr.cc \
+#  test_strings.cc
+
+# Special hacks to generate the parser rules
+$(srcdir)/ParseRules.cc: ParseRulesCType
+
+ParseRulesCType: CompileParseRules
+	./CompileParseRules
+
+mkdfa_SOURCES = mkdfa.c
+
+test_atomic_SOURCES = test_atomic.cc
+test_atomic_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_atomic_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+
+test_freelist_SOURCES = test_freelist.cc
+test_freelist_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_freelist_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+
+test_arena_SOURCES = test_arena.cc
+test_arena_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_arena_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+
+test_List_SOURCES = test_List.cc
+test_Map_SOURCES = test_Map.cc
+test_Map_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_Map_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+
+test_Vec_SOURCES = test_Vec.cc
+test_Vec_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_Vec_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+
+CompileParseRules_SOURCES = CompileParseRules.cc
+
+test:: $(TESTS)
+	for f in $(TESTS) ; do $$f ; done
+
+#$(foreach F, $(TESTS), $(shell $F))
+
+clean-local:
+	rm -f ParseRulesCType ParseRulesCTypeToLower ParseRulesCTypeToUpper
diff --git a/lib/ts/Makefile.in b/lib/ts/Makefile.in
new file mode 100644
index 00000000..795ee7ef
--- /dev/null
+++ b/lib/ts/Makefile.in
@@ -0,0 +1,1723 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# libts Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
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+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
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+PYTHON_VERSION = @PYTHON_VERSION@
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+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
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+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
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+abs_top_srcdir = @abs_top_srcdir@
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+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
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+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
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+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
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+host = @host@
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+host_cpu = @host_cpu@
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+host_vendor = @host_vendor@
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+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
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+logdir = @logdir@
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+machine_endianh = @machine_endianh@
+malloch = @malloch@
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+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
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+netinet_iph = @netinet_iph@
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+pcreh = @pcreh@
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+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
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+rel_libdir = @rel_libdir@
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+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
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+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+library_includedir = $(includedir)/ts
+library_include_HEADERS = apidefs.h
+TESTS = $(check_PROGRAMS)
+AM_CPPFLAGS = -I$(top_srcdir)/lib
+lib_LTLIBRARIES = libtsutil.la
+libtsutil_la_LDFLAGS = -no-undefined -version-info @TS_LIBTOOL_VERSION@
+libtsutil_la_LIBADD = \
+  @HWLOC_LIBS@ \
+  @LIBOBJS@ \
+  @LIBPCRE@ \
+  @OPENSSL_LIBS@ \
+  @LIBTCL@ \
+  @LIBRESOLV@ \
+  @LIBCAP@ \
+  -lc
+
+libtsutil_la_SOURCES = \
+  Allocator.h \
+  Arena.cc \
+  Arena.h \
+  Bitops.cc \
+  Bitops.h \
+  Compatability.h \
+  Diags.cc \
+  Diags.h \
+  DynArray.h \
+  EventNotify.cc \
+  EventNotify.h \
+  HostLookup.cc \
+  HostLookup.h \
+  INK_MD5.h \
+  I_Layout.h \
+  I_Version.h \
+  InkErrno.h \
+  InkPool.h \
+  IntrusiveDList.h \
+  IpMap.cc \
+  IpMap.h \
+  IpMapConf.cc \
+  IpMapConf.h \
+  Layout.cc \
+  List.h \
+  Map.h \
+  MatcherUtils.cc \
+  MatcherUtils.h \
+  MimeTable.cc \
+  MimeTable.h \
+  ParseRules.cc \
+  ParseRules.h \
+  Ptr.h \
+  RawHashTable.cc \
+  RawHashTable.h \
+  Regex.cc \
+  Regex.h \
+  Regression.cc \
+  Regression.h \
+  SimpleTokenizer.h \
+  TestBox.h \
+  TextBuffer.cc \
+  TextBuffer.h \
+  Tokenizer.cc \
+  Tokenizer.h \
+  Trie.h \
+  TsBuffer.h \
+  Vec.cc \
+  Vec.h \
+  Version.cc \
+  defalloc.h \
+  fastlz.c \
+  fastlz.h \
+  ink_aiocb.h \
+  ink_align.h \
+  ink_apidefs.h \
+  ink_args.cc \
+  ink_args.h \
+  ink_assert.cc \
+  ink_assert.h \
+  ink_atomic.h \
+  ink_auth_api.cc \
+  ink_auth_api.h \
+  ink_base64.cc \
+  ink_base64.h \
+  ink_cap.cc \
+  ink_cap.h \
+  ink_code.cc \
+  ink_code.h \
+  ink_defs.cc \
+  ink_defs.h \
+  ink_error.cc \
+  ink_error.h \
+  ink_exception.h \
+  ink_file.cc \
+  ink_file.h \
+  ink_hash_table.cc \
+  ink_hash_table.h \
+  ink_hrtime.cc \
+  ink_hrtime.h \
+  ink_inet.cc \
+  ink_inet.h \
+  ink_inout.h \
+  ink_llqueue.h \
+  ink_lockfile.h \
+  ink_memory.cc \
+  ink_memory.h \
+  ink_mutex.cc \
+  ink_mutex.h \
+  ink_platform.h \
+  ink_queue.cc \
+  ink_queue.h \
+  ink_queue_ext.cc \
+  ink_queue_ext.h \
+  ink_queue_utils.cc \
+  ink_rand.cc \
+  ink_rand.h \
+  ink_res_init.cc \
+  ink_res_mkquery.cc \
+  ink_resolver.h \
+  ink_resource.cc \
+  ink_resource.h \
+  ink_rwlock.cc \
+  ink_rwlock.h \
+  ink_sock.cc \
+  ink_sock.h \
+  ink_sprintf.cc \
+  ink_sprintf.h \
+  ink_stack_trace.cc \
+  ink_stack_trace.h \
+  ink_string++.cc \
+  ink_string++.h \
+  ink_string.cc \
+  ink_string.h \
+  ink_sys_control.cc \
+  ink_sys_control.h \
+  ink_syslog.cc \
+  ink_syslog.h \
+  ink_thread.cc \
+  ink_thread.h \
+  ink_time.cc \
+  ink_time.h \
+  libts.h \
+  llqueue.cc \
+  lockfile.cc
+
+mkdfa_SOURCES = mkdfa.c
+test_atomic_SOURCES = test_atomic.cc
+test_atomic_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_atomic_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+test_freelist_SOURCES = test_freelist.cc
+test_freelist_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_freelist_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+test_arena_SOURCES = test_arena.cc
+test_arena_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_arena_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+test_List_SOURCES = test_List.cc
+test_Map_SOURCES = test_Map.cc
+test_Map_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_Map_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+test_Vec_SOURCES = test_Vec.cc
+test_Vec_LDADD = libtsutil.la @LIBTCL@ @LIBPCRE@
+test_Vec_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+CompileParseRules_SOURCES = CompileParseRules.cc
+all: ink_autoconf.h
+	$(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/ts/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/ts/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+ink_autoconf.h: stamp-h1
+	@if test ! -f $@; then rm -f stamp-h1; else :; fi
+	@if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) stamp-h1; else :; fi
+
+stamp-h1: $(srcdir)/ink_autoconf.h.in $(top_builddir)/config.status
+	@rm -f stamp-h1
+	cd $(top_builddir) && $(SHELL) ./config.status lib/ts/ink_autoconf.h
+$(srcdir)/ink_autoconf.h.in:  $(am__configure_deps) 
+	($(am__cd) $(top_srcdir) && $(AUTOHEADER))
+	rm -f stamp-h1
+	touch $@
+
+distclean-hdr:
+	-rm -f ink_autoconf.h stamp-h1
+apidefs.h: $(top_builddir)/config.status $(srcdir)/apidefs.h.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+ink_config.h: $(top_builddir)/config.status $(srcdir)/ink_config.h.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
+	}
+
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+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS:
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	trs_list=`for i in $$bases; do echo $$i.trs; done`; \
+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all $(check_PROGRAMS)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+test_atomic.log: test_atomic$(EXEEXT)
+	@p='test_atomic$(EXEEXT)'; \
+	b='test_atomic'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_freelist.log: test_freelist$(EXEEXT)
+	@p='test_freelist$(EXEEXT)'; \
+	b='test_freelist'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_arena.log: test_arena$(EXEEXT)
+	@p='test_arena$(EXEEXT)'; \
+	b='test_arena'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_List.log: test_List$(EXEEXT)
+	@p='test_List$(EXEEXT)'; \
+	b='test_List'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_Map.log: test_Map$(EXEEXT)
+	@p='test_Map$(EXEEXT)'; \
+	b='test_Map'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+test_Vec.log: test_Vec$(EXEEXT)
+	@p='test_Vec$(EXEEXT)'; \
+	b='test_Vec'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.test.log:
+	@p='$<'; \
+	$(am__set_b); \
+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+@am__EXEEXT_TRUE@	--log-file $$b.log --trs-file $$b.trs \
+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(PROGRAMS) $(HEADERS) ink_autoconf.h
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(library_includedir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libLTLIBRARIES \
+	clean-libtool clean-local clean-noinstPROGRAMS mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-hdr distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-library_includeHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES \
+	uninstall-library_includeHEADERS
+
+.MAKE: all check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-TESTS check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libLTLIBRARIES \
+	clean-libtool clean-local clean-noinstPROGRAMS cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-hdr distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-libLTLIBRARIES \
+	install-library_includeHEADERS install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	recheck tags tags-am uninstall uninstall-am \
+	uninstall-libLTLIBRARIES uninstall-library_includeHEADERS
+
+
+#test_UNUSED_SOURCES = \
+#  load_http_hdr.cc \
+#  IntrusivePtrTest.cc \
+#  IpMapTest.cc \
+#  TestHttpHeader.cc \
+#  test_memchr.cc \
+#  test_strings.cc
+
+# Special hacks to generate the parser rules
+$(srcdir)/ParseRules.cc: ParseRulesCType
+
+ParseRulesCType: CompileParseRules
+	./CompileParseRules
+
+test:: $(TESTS)
+	for f in $(TESTS) ; do $$f ; done
+
+#$(foreach F, $(TESTS), $(shell $F))
+
+clean-local:
+	rm -f ParseRulesCType ParseRulesCTypeToLower ParseRulesCTypeToUpper
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/ts/Map.h b/lib/ts/Map.h
new file mode 100644
index 00000000..e18bddf6
--- /dev/null
+++ b/lib/ts/Map.h
@@ -0,0 +1,941 @@
+/** @file
+
+  A set of Map templates.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#ifndef _map_H_
+#define _map_H_
+
+#include <stdlib.h>
+#include <string.h>
+#include "ink_assert.h"
+#include "List.h"
+#include "Vec.h"
+
+#define MAP_INTEGRAL_SIZE               (1 << (2))
+#define MAP_INITIAL_SHIFT               ((2)+1)
+#define MAP_INITIAL_SIZE                (1 << MAP_INITIAL_SHIFT)
+
+typedef const char cchar;
+
+template<class A>
+static inline char *
+_dupstr(cchar *s, cchar *e = 0) {
+  int l = e ? e-s : strlen(s);
+  char *ss = (char*)A::alloc(l+1);
+  memcpy(ss, s, l);
+  ss[l] = 0;
+  return ss;
+}
+
+// Simple direct mapped Map (pointer hash table) and Environment
+
+template <class K, class C> class MapElem {
+ public:
+  K     key;
+  C     value;
+  bool operator==(MapElem &e) { return e.key == key; }
+  operator uintptr_t(void) { return (uintptr_t)(uintptr_t)key; }
+  MapElem(uintptr_t x) { ink_assert(!x); key = 0; }
+  MapElem(K akey, C avalue) : key(akey), value(avalue) {}
+  MapElem(MapElem &e) : key(e.key), value(e.value) {}
+  MapElem() : key(0) {}
+};
+
+template <class K, class C, class A = DefaultAlloc> class Map : public Vec<MapElem<K,C>, A> {
+ public:
+  typedef MapElem<K,C> ME;
+  typedef Vec<ME,A> PType;
+  using PType::n;
+  using PType::i;
+  using PType::v;
+  ME *put(K akey, C avalue);
+  ME *put(K akey);
+  C get(K akey);
+  C *getp(K akey);
+  void get_keys(Vec<K> &keys);
+  void get_keys_set(Vec<K> &keys);
+  void get_values(Vec<C> &values);
+  void map_union(Map<K,C> &m);
+  bool some_disjunction(Map<K,C> &m) const;
+};
+
+template <class C> class HashFns {
+ public:
+  static uintptr_t hash(C a);
+  static int equal(C a, C b);
+};
+
+template <class K, class C> class HashSetFns {
+ public:
+  static uintptr_t hash(C a);
+  static uintptr_t hash(K a);
+  static int equal(C a, C b);
+  static int equal(K a, C b);
+};
+
+template <class K, class AHashFns, class C, class A = DefaultAlloc> class HashMap : public Map<K,C,A> {
+ public:
+  using Map<K,C,A>::n;
+  using Map<K,C,A>::i;
+  using Map<K,C,A>::v;
+  using Map<K,C,A>::e;
+  MapElem<K,C> *get_internal(K akey);
+  C get(K akey);
+  MapElem<K,C> *put(K akey, C avalue);
+  void get_keys(Vec<K> &keys);
+  void get_values(Vec<C> &values);
+};
+
+#define form_Map(_c, _p, _v) if ((_v).n) for (_c *qq__##_p = (_c*)0, *_p = &(_v).v[0]; \
+             ((uintptr_t)(qq__##_p) < (_v).n) && ((_p = &(_v).v[(uintptr_t)qq__##_p]) || 1); \
+             qq__##_p = (_c*)(((uintptr_t)qq__##_p) + 1)) \
+          if ((_p)->key)
+
+
+template <class K, class AHashFns, class C, class A = DefaultAlloc> class HashSet : public Vec<C,A> {
+ public:
+  typedef Vec<C,A> V;
+  using V::n;
+  using V::i;
+  using V::v;
+  using V::e;
+  C get(K akey);
+  C *put( C avalue);
+};
+
+class StringHashFns {
+ public:
+  static uintptr_t hash(cchar *s) { 
+    uintptr_t h = 0; 
+    // 31 changed to 27, to avoid prime2 in vec.cpp
+    while (*s) h = h * 27 + (unsigned char)*s++;  
+    return h;
+  }
+  static int equal(cchar *a, cchar *b) { return !strcmp(a, b); }
+};
+
+class CaseStringHashFns {
+ public:
+  static uintptr_t hash(cchar *s) { 
+    uintptr_t h = 0; 
+    // 31 changed to 27, to avoid prime2 in vec.cpp
+    while (*s) h = h * 27 + (unsigned char)toupper(*s++);
+    return h;
+  }
+  static int equal(cchar *a, cchar *b) { return !strcasecmp(a, b); }
+};
+
+class PointerHashFns {
+ public:
+  static uintptr_t hash(void *s) { return (uintptr_t)(uintptr_t)s; }
+  static int equal(void *a, void *b) { return a == b; }
+};
+
+template <class C, class AHashFns, class A = DefaultAlloc> class ChainHash : public Map<uintptr_t, List<C,A>,A> {
+ public:
+  using Map<uintptr_t, List<C,A>,A>::n;
+  using Map<uintptr_t, List<C,A>,A>::v;
+  typedef ConsCell<C, A> ChainCons;
+  C put(C c);
+  C get(C c);
+  C put_bag(C c);
+  int get_bag(C c,Vec<C> &v);
+  int del(C avalue);
+  void get_elements(Vec<C> &elements);
+};
+
+template <class K, class AHashFns, class C, class A = DefaultAlloc> class ChainHashMap : 
+  public Map<uintptr_t, List<MapElem<K,C>,A>,A> {
+ public:
+  using Map<uintptr_t, List<MapElem<K,C>,A>,A>::n;
+  using Map<uintptr_t, List<MapElem<K,C>,A>,A>::v;
+  MapElem<K,C> *put(K akey, C avalue);
+  C get(K akey);
+  int del(K akey);
+  MapElem<K,C> *put_bag(K akey, C c);
+  int get_bag(K akey, Vec<C> &v);
+  void get_keys(Vec<K> &keys);
+  void get_values(Vec<C> &values);
+};
+
+template<class F = StringHashFns, class A = DefaultAlloc>
+class StringChainHash : public ChainHash<cchar *, F, A> {
+ public:
+  cchar *canonicalize(cchar *s, cchar *e);
+  cchar *canonicalize(cchar *s) { return canonicalize(s, s + strlen(s)); }
+};
+
+template <class C, class AHashFns, int N, class A = DefaultAlloc> class NBlockHash {
+ public:
+  int n;
+  int i;
+  C *v;
+  C e[N];
+
+  C* end() { return last(); }
+  int length() { return N * n; }
+  C *first();
+  C *last();
+  C put(C c);
+  C get(C c);
+  C* assoc_put(C *c);
+  C* assoc_get(C *c);
+  int del(C c);
+  void clear();
+  void reset();
+  int count();
+  void size(int p2);
+  void copy(const NBlockHash<C,AHashFns,N,A> &hh);
+  void move(NBlockHash<C,AHashFns,N,A> &hh);
+  NBlockHash();
+  NBlockHash(NBlockHash<C,AHashFns,N,A> &hh) { v = e; copy(hh); }
+};
+
+/* use forv_Vec on BlockHashes */
+
+#define DEFAULT_BLOCK_HASH_SIZE 4
+template <class C, class ABlockHashFns> class BlockHash : 
+  public NBlockHash<C, ABlockHashFns, DEFAULT_BLOCK_HASH_SIZE> {};
+typedef BlockHash<cchar *, StringHashFns> StringBlockHash;
+
+template <class K, class C, class A = DefaultAlloc> class Env {
+ public:
+  typedef ConsCell<C, A> EnvCons;
+  void put(K akey, C avalue);
+  C get(K akey);
+  void push();
+  void pop();
+  void clear() { store.clear(); scope.clear(); }
+
+  Env() {}
+  Map<K,List<C> *, A> store;
+  List<List<K>, A> scope;
+  List<C, A> *get_bucket(K akey);
+};
+
+/* IMPLEMENTATION */
+
+template <class K, class C, class A> inline C 
+Map<K,C,A>::get(K akey) {
+  MapElem<K,C> e(akey, (C)0);
+  MapElem<K,C> *x = this->set_in(e);
+  if (x)
+    return x->value;
+  return (C)0;
+}
+
+template <class K, class C, class A> inline C *
+Map<K,C,A>::getp(K akey) {
+  MapElem<K,C> e(akey, (C)0);
+  MapElem<K,C> *x = this->set_in(e);
+  if (x)
+    return &x->value;
+  return 0;
+}
+
+template <class K, class C, class A> inline MapElem<K,C> *
+Map<K,C,A>::put(K akey, C avalue) {
+  MapElem<K,C> e(akey, avalue);
+  MapElem<K,C> *x = this->set_in(e);
+  if (x) {
+    x->value = avalue;
+    return x;
+  } else
+    return this->set_add(e);
+}
+
+template <class K, class C, class A> inline MapElem<K,C> *
+Map<K,C,A>::put(K akey) {
+  MapElem<K,C> e(akey, 0);
+  MapElem<K,C> *x = this->set_in(e);
+  if (x)
+    return x;
+  else
+    return this->set_add(e);
+}
+
+template <class K, class C, class A> inline void
+Map<K,C,A>::get_keys(Vec<K> &keys) {
+  for (int i = 0; i < n; i++)
+    if (v[i].key)
+      keys.add(v[i].key);
+}
+
+template <class K, class C, class A> inline void
+Map<K,C,A>::get_keys_set(Vec<K> &keys) {
+  for (int i = 0; i < n; i++)
+    if (v[i].key)
+      keys.set_add(v[i].key);
+}
+
+template <class K, class C, class A> inline void
+Map<K,C,A>::get_values(Vec<C> &values) {
+  for (int i = 0; i < n; i++)
+    if (v[i].key)
+      values.set_add(v[i].value);
+  values.set_to_vec();
+}
+
+template <class K, class C, class A> inline void
+Map<K,C,A>::map_union(Map<K,C> &m) {
+  for (int i = 0; i < m.n; i++)
+    if (m.v[i].key)
+      put(m.v[i].key, m.v[i].value);
+}
+
+template <class K, class C, class A> inline bool
+Map<K,C,A>::some_disjunction(Map<K,C> &m) const {
+  for (size_t i = 0; i < m.n; i++) {
+    if (m.v[i].key && get(m.v[i].key) != m.v[i].value) {
+      return true;
+    }
+  }
+  for (size_t i = 0; i < n; i++) {
+    if (v[i].key && m.get(v[i].key) != v[i].value) {
+      return true;
+    }
+  }
+  return false;
+}
+
+template <class K, class C, class A> inline void
+map_set_add(Map<K,Vec<C,A>*,A> &m, K akey, C avalue) {
+  Vec<C,A> *v = m.get(akey);
+  if (!v)
+    m.put(akey, (v = new Vec<C,A>));
+  v->set_add(avalue);
+}
+
+template <class K, class C, class A> inline void
+map_set_add(Map<K,Vec<C,A>*,A> &m, K akey, Vec<C> *madd) {
+  Vec<C,A> *v = m.get(akey);
+  if (!v)
+    m.put(akey, (v = new Vec<C,A>));
+  v->set_union(*madd);
+}
+
+template <class K, class AHashFns, class C, class A> inline C
+HashSet<K, AHashFns, C, A>::get(K akey) {
+  if (!n)
+    return 0;
+  if (n <= MAP_INTEGRAL_SIZE) {
+    for (C *c = v; c < v + n; c++)
+      if (c)
+        if (AHashFns::equal(akey, *c))
+          return *c;
+    return 0;
+  }
+  uintptr_t h = AHashFns::hash(akey);
+  h = h % n;
+  for (int k = h, j = 0; j < i + 3;j++) {
+    if (!v[k])
+      return 0;
+    else if (AHashFns::equal(akey, v[k]))
+      return v[k];
+    k = (k + open_hash_primes[j]) % n;
+  }
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A> inline C *
+HashSet<K, AHashFns, C, A>::put(C avalue) {
+  if (n < MAP_INTEGRAL_SIZE) {
+    if (!v)
+      v = e;
+    for (int i = 0; i < n; i++)
+      if (AHashFns::equal(avalue, v[i]))
+        return &v[i];
+    v[n] = avalue;
+    n++;
+    return &v[n-1];
+  }
+  if (n > MAP_INTEGRAL_SIZE) {
+    uintptr_t h = AHashFns::hash(avalue);
+    h = h % n;
+    for (int k = h, j = 0; j < i + 3; j++) {
+      if (!v[k]) {
+        v[k] = avalue;
+        return &v[k];
+      }
+      k = (k + open_hash_primes[j]) % n;
+    }
+  } else
+    i = SET_INITIAL_INDEX-1; // will be incremented in set_expand
+  HashSet<K,AHashFns,C,A> vv(*this);
+  Vec<C,A>::set_expand();
+  for (int i = 0; i < vv.n; i++)
+    if (vv.v[i])
+      put(vv.v[i]);
+  return put(avalue);
+}
+
+template <class K, class AHashFns, class C, class A> inline MapElem<K,C> * 
+HashMap<K,AHashFns,C,A>::get_internal(K akey) {
+  if (!n)
+    return 0;
+  if (n <= MAP_INTEGRAL_SIZE) {
+    for (MapElem<K,C> *c = v; c < v + n; c++)
+      if (c->key)
+        if (AHashFns::equal(akey, c->key))
+          return c;
+    return 0;
+  }
+  uintptr_t h = AHashFns::hash(akey);
+  h = h % n;
+  for (size_t k = h, j = 0; j < i + 3;j++) {
+    if (!v[k].key)
+      return 0;
+    else if (AHashFns::equal(akey, v[k].key))
+      return &v[k];
+    k = (k + open_hash_primes[j]) % n;
+  }
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A> inline C 
+HashMap<K,AHashFns,C,A>::get(K akey) {
+  MapElem<K,C> *x = get_internal(akey);
+  if (!x)
+    return 0;
+  return x->value;
+}
+
+template <class K, class AHashFns, class C, class A> inline MapElem<K,C> *
+HashMap<K,AHashFns,C,A>::put(K akey, C avalue) {
+  MapElem<K,C> *x = get_internal(akey);
+  if (x) {
+    x->value = avalue;
+    return x;
+  } else {
+    if (n < MAP_INTEGRAL_SIZE) {
+      if (!v)
+        v = e;
+      v[n].key = akey;
+      v[n].value = avalue;
+      n++;
+      return &v[n-1];
+    }
+    if (n > MAP_INTEGRAL_SIZE) {
+      uintptr_t h = AHashFns::hash(akey);
+      h = h % n;
+      for (size_t k = h, j = 0; j < i + 3; j++) {
+        if (!v[k].key) {
+          v[k].key = akey;
+          v[k].value = avalue;
+          return &v[k];
+        }
+        k = (k + open_hash_primes[j]) % n;
+      }
+    } else
+      i = SET_INITIAL_INDEX-1; // will be incremented in set_expand
+  }
+  HashMap<K,AHashFns,C,A> vv(*this);
+  Map<K,C,A>::set_expand();
+  for (size_t i = 0; i < vv.n; i++)
+    if (vv.v[i].key)
+      put(vv.v[i].key, vv.v[i].value);
+  return put(akey, avalue);
+}
+
+template <class K, class AHashFns, class C, class A> inline void
+HashMap<K,AHashFns,C,A>::get_keys(Vec<K> &keys) { Map<K,C,A>::get_keys(keys); }
+
+template <class K, class AHashFns, class C, class A> inline void
+HashMap<K,AHashFns,C,A>::get_values(Vec<C> &values) { Map<K,C,A>::get_values(values); }
+
+template <class C, class AHashFns, class A> C
+ChainHash<C, AHashFns, A>::put(C c) {
+  uintptr_t h = AHashFns::hash(c);
+  List<C,A> *l;
+  MapElem<uintptr_t,List<C,A> > e(h, (C)0);
+  MapElem<uintptr_t,List<C,A> > *x = this->set_in(e);
+  if (x)
+    l = &x->value;
+  else {
+    l = &Map<uintptr_t, List<C,A>, A>::put(h, c)->value;
+    return l->head->car;
+  }
+  forc_List(ChainCons, x, *l)
+    if (AHashFns::equal(c, x->car))
+      return x->car;
+  l->push(c);
+  return (C)0;
+}
+
+template <class C, class AHashFns, class A> C
+ChainHash<C, AHashFns, A>::get(C c) {
+  uintptr_t h = AHashFns::hash(c);
+  List<C> empty;
+  MapElem<uintptr_t,List<C,A> > e(h, empty);
+  MapElem<uintptr_t,List<C,A> > *x = this->set_in(e);
+  if (!x)
+    return 0;
+  List<C> *l = &x->value;
+  forc_List(ChainCons, x, *l)
+    if (AHashFns::equal(c, x->car))
+      return x->car;
+  return 0;
+}
+
+template <class C, class AHashFns, class A> C
+ChainHash<C, AHashFns, A>::put_bag(C c) {
+  uintptr_t h = AHashFns::hash(c);
+  List<C, A> *l;
+  MapElem<uintptr_t,List<C,A> > e(h, (C)0);
+  MapElem<uintptr_t,List<C,A> > *x = this->set_in(e);
+  if (x)
+    l = &x->value;
+  else {
+    l = &Map<uintptr_t, List<C,A> >::put(h, c)->value;
+    return l->head->car;
+  }
+  l->push(c);
+  return (C)0;
+}
+
+template <class C, class AHashFns, class A> int
+ChainHash<C, AHashFns, A>::get_bag(C c, Vec<C> &v) {
+  uintptr_t h = AHashFns::hash(c);
+  List<C,A> empty;
+  MapElem<uintptr_t,List<C,A> > e(h, empty);
+  MapElem<uintptr_t,List<C,A> > *x = this->set_in(e);
+  if (!x)
+    return 0;
+  List<C,A> *l = &x->value;
+  forc_List(C, x, *l)
+    if (AHashFns::equal(c, x->car))
+      v.add(x->car);
+  return v.n;
+}
+
+template <class C, class AHashFns, class A> void
+ChainHash<C, AHashFns, A>::get_elements(Vec<C> &elements) {
+  for (int i = 0; i < n; i++) {
+    List<C, A> *l = &v[i].value;
+    forc_List(C, x, *l)
+      elements.add(x);
+  }
+}
+
+template <class C, class AHashFns, class A> int
+ChainHash<C, AHashFns, A>::del(C c) {
+  uintptr_t h = AHashFns::hash(c);
+  List<C> *l;
+  MapElem<uintptr_t,List<C,A> > e(h, (C)0);
+  MapElem<uintptr_t,List<C,A> > *x = this->set_in(e);
+  if (x)
+    l = &x->value;
+  else
+    return 0;
+  ConsCell<C> *last = 0;
+  forc_List(ConsCell<C>, x, *l) {
+    if (AHashFns::equal(c, x->car)) {
+      if (!last)
+        l->head = x->cdr;
+      else
+        last->cdr = x->cdr;
+      A::free(x);
+      return 1;
+    }
+    last = x;
+  }
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A>  MapElem<K,C> *
+ChainHashMap<K, AHashFns, C, A>::put(K akey, C avalue) {
+  uintptr_t h = AHashFns::hash(akey);
+  List<MapElem<K,C>,A> empty;
+  List<MapElem<K,C>,A> *l;
+  MapElem<K, C> c(akey, avalue);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > e(h, empty);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > *x = this->set_in(e);
+  if (x)
+    l = &x->value;
+  else {
+    l = &Map<uintptr_t, List<MapElem<K,C>,A>,A>::put(h, c)->value;
+    return &l->head->car;
+  }
+  for (ConsCell<MapElem<K,C>,A> *p  = l->head; p; p = p->cdr)
+    if (AHashFns::equal(akey, p->car.key)) {
+      p->car.value = avalue;
+      return &p->car;
+    }
+  l->push(c);
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A> C
+ChainHashMap<K, AHashFns, C, A>::get(K akey) {
+  uintptr_t h = AHashFns::hash(akey);
+  List<MapElem<K,C>, A> empty;
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > e(h, empty);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > *x = this->set_in(e);
+  if (!x)
+    return 0;
+  List<MapElem<K,C>,A> *l = &x->value;
+  if (l->head) 
+    for (ConsCell<MapElem<K,C>,A> *p  = l->head; p; p = p->cdr)
+      if (AHashFns::equal(akey, p->car.key))
+        return p->car.value;
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A> MapElem<K,C> *
+ChainHashMap<K, AHashFns, C, A>::put_bag(K akey, C avalue) {
+  uintptr_t h = AHashFns::hash(akey);
+  List<MapElem<K,C>,A> empty;
+  List<MapElem<K,C>,A> *l;
+  MapElem<K, C> c(akey, avalue);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > e(h, empty);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > *x = this->set_in(e);
+  if (x)
+    l = &x->value;
+  else {
+    l = &Map<uintptr_t, List<MapElem<K,C>,A>,A>::put(h, c)->value;
+    return &l->head->car;
+  }
+  for (ConsCell<MapElem<K,C>,A> *p  = l->head; p; p = p->cdr)
+    if (AHashFns::equal(akey, p->car.key) && AHashFns::equal_value(avalue, p->car.value))
+      return &p->car;
+  l->push(c);
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A> int
+ChainHashMap<K, AHashFns, C, A>::get_bag(K akey, Vec<C> &v) {
+  uintptr_t h = AHashFns::hash(akey);
+  List<MapElem<K,C>,A> empty;
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > e(h, empty);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > *x = this->set_in(e);
+  if (!x)
+    return 0;
+  List<MapElem<K,C>,A> *l = &x->value;
+  for (ConsCell<MapElem<K,C>,A> *p  = l->head; p; p = p->cdr)
+    if (AHashFns::equal(akey, p->car.key))
+      return v.add(x->car);
+  return v.n;
+}
+
+template <class K, class AHashFns, class C, class A> int
+ChainHashMap<K, AHashFns, C, A>::del(K akey) {
+  uintptr_t h = AHashFns::hash(akey);
+  List<MapElem<K,C>,A> empty;
+  List<MapElem<K,C>,A> *l;
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > e(h, empty);
+  MapElem<uintptr_t,List<MapElem<K,C>,A> > *x = this->set_in(e);
+  if (x)
+    l = &x->value;
+  else
+    return 0;
+  ConsCell<MapElem<K,C>,A> *last = 0;
+  for (ConsCell<MapElem<K,C>,A> *p = l->head; p; p = p->cdr) {
+    if (AHashFns::equal(akey, p->car.key)) {
+      if (!last)
+        l->head = p->cdr;
+      else
+        last->cdr = p->cdr;
+      return 1;
+    }
+    last = p;
+  }
+  return 0;
+}
+
+template <class K, class AHashFns, class C, class A> void
+ChainHashMap<K, AHashFns, C, A>::get_keys(Vec<K> &keys) {
+  for (size_t i = 0; i < n; i++) {
+    List<MapElem<K,C> > *l = &v[i].value;
+    if (l->head) 
+      for (ConsCell<MapElem<K,C>,A> *p  = l->head; p; p = p->cdr)
+        keys.add(p->car.key);
+  }
+}
+
+template <class K, class AHashFns, class C, class A> void
+ChainHashMap<K, AHashFns, C, A>::get_values(Vec<C> &values) {
+  for (size_t i = 0; i < n; i++) {
+    List<MapElem<K,C>,A> *l = &v[i].value;
+    if (l->head) 
+      for (ConsCell<MapElem<K,C>,A> *p  = l->head; p; p = p->cdr)
+        values.add(p->car.value);
+  }
+}
+
+template <class F, class A> inline cchar *
+StringChainHash<F,A>::canonicalize(cchar *s, cchar *e) {
+  uintptr_t h = 0;
+  cchar *a = s;
+  // 31 changed to 27, to avoid prime2 in vec.cpp
+  if (e)
+    while (a != e) h = h * 27 + (unsigned char)*a++;  
+  else
+    while (*a) h = h * 27 + (unsigned char)*a++;  
+  MapElem<uintptr_t,List<cchar*, A> > me(h, (char*)0);
+  MapElem<uintptr_t,List<cchar*, A> > *x = this->set_in(me);
+  if (x) {
+    List<cchar*, A> *l = &x->value;
+    typedef ConsCell<cchar *, A> TT;
+    forc_List(TT, x, *l) {
+      a = s;
+      cchar *b = x->car;
+      while (1) {
+        if (!*b) {
+          if (a == e)
+            return x->car;
+          break;
+        }
+        if (a >= e || *a != *b)
+          break;
+        a++; b++;
+      }
+    }
+  }
+  s = _dupstr<A>(s, e);
+  cchar *ss = ChainHash<cchar *, F, A>::put(s);
+  if (ss)
+    return ss;
+  return s;
+}
+
+template <class K, class C, class A> inline C 
+Env<K,C,A>::get(K akey) {
+  MapElem<K,List<C, A> *> e(akey, 0);
+  MapElem<K,List<C, A> *> *x = store.set_in(e);
+  if (x)
+    return x->value->first();
+  return (C)0;
+}
+
+template <class K, class C, class A> inline List<C, A> *
+Env<K,C,A>::get_bucket(K akey) {
+  List<C, A> *bucket = store.get(akey);
+  if (bucket)
+    return bucket;
+  bucket = new List<C>();
+  store.put(akey, bucket);
+  return bucket;
+}
+
+template <class K, class C, class A> inline void
+Env<K,C,A>::put(K akey, C avalue) {
+  scope.head->car.push(akey);
+  get_bucket(akey)->push(avalue);
+}
+
+template <class K, class C, class A> inline void
+Env<K,C,A>::push() {
+  scope.push();
+}
+
+template <class K, class C, class A> inline void
+Env<K,C,A>::pop() {
+  forc_List(EnvCons, e, scope.first())
+    get_bucket(e->car)->pop();
+}
+
+template <class C, class AHashFns, int N, class A> inline 
+NBlockHash<C, AHashFns, N, A>::NBlockHash() : n(1), i(0) {
+  memset(&e[0], 0, sizeof(e));
+  v = e;
+}
+
+template <class C, class AHashFns, int N, class A> inline C*
+NBlockHash<C, AHashFns, N, A>::first() {
+  return &v[0];
+}
+
+template <class C, class AHashFns, int N, class A> inline C*
+NBlockHash<C, AHashFns, N, A>::last() {
+  return &v[n * N];
+}
+
+template <class C, class AHashFns, int N, class A> inline C
+NBlockHash<C, AHashFns, N, A>::put(C c) {
+  int a;
+  uintptr_t h = AHashFns::hash(c);
+  C *x = &v[(h % n) * N];
+  for (a = 0; a < N; a++) {
+    if (!x[a])
+      break;
+    if (AHashFns::equal(c, x[a]))
+      return x[a];
+  }
+  if (a < N) {
+    x[a] = c;
+    return (C)0;
+  }
+  C *vv = first(), *ve = last();
+  C *old_v = v;
+  i = i + 1;
+  size(i);
+  for (;vv < ve; vv++)
+    if (*vv)
+      put(*vv);
+  if (old_v != &e[0])
+    A::free(old_v);
+  return put(c);
+}
+
+template <class C, class AHashFns, int N, class A> inline void
+NBlockHash<C, AHashFns, N, A>::size(int p2) {
+  n = prime2[p2];
+  v = (C*)A::alloc(n * sizeof(C) * N);
+  memset(v, 0, n * sizeof(C) * N);
+}
+
+template <class C, class AHashFns, int N, class A> inline C
+NBlockHash<C, AHashFns, N, A>::get(C c) {
+  if (!n)
+    return (C)0;
+  uintptr_t h = AHashFns::hash(c);
+  C *x = &v[(h % n) * N];
+  for (int a = 0; a < N; a++) {
+    if (!x[a])
+      return (C)0;
+    if (AHashFns::equal(c, x[a]))
+      return x[a];
+  }
+  return (C)0;
+}
+
+template <class C, class AHashFns, int N, class A> inline C*
+NBlockHash<C, AHashFns, N, A>::assoc_get(C *c) {
+  if (!n)
+    return (C*)0;
+  uintptr_t h = AHashFns::hash(*c);
+  C *x = &v[(h % n) * N];
+  int a = 0;
+  if (c >= x && c < x + N)
+    a = c - x + 1;
+  for (; a < N; a++) {
+    if (!x[a])
+      return (C*)0;
+    if (AHashFns::equal(*c, x[a]))
+      return &x[a];
+  }
+  return (C*)0;
+}
+
+template <class C, class AHashFns, int N, class A> inline C*
+NBlockHash<C, AHashFns, N, A>::assoc_put(C *c) {
+  int a;
+  uintptr_t h = AHashFns::hash(*c);
+  C *x = &v[(h % n) * N];
+  for (a = 0; a < N; a++) {
+    if (!x[a])
+      break;
+  }
+  if (a < N) {
+    x[a] = *c;
+    return  &x[a];
+  }
+  x[i % N] = *c;
+  i++;
+  return &x[i % N];
+}
+
+template <class C, class AHashFns, int N, class A> inline int
+NBlockHash<C, AHashFns, N, A>::del(C c) {
+  int a, b;
+  if (!n)
+    return 0;
+  uintptr_t h = AHashFns::hash(c);
+  C *x = &v[(h % n) * N];
+  for (a = 0; a < N; a++) {
+    if (!x[a])
+      return 0;
+    if (AHashFns::equal(c, x[a])) {
+      if (a < N - 1) {
+        for (b = a + 1; b < N; b++) {
+          if (!x[b])
+            break;
+        }
+        if (b != a + 1)
+          x[a] = x[b - 1];
+        x[b - 1] = (C)0;
+        return 1;
+      } else {
+        x[N - 1] = (C)0;
+        return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+template <class C, class AHashFns, int N, class A> inline void
+NBlockHash<C, AHashFns, N, A>::clear() {
+  if (v && v != e) A::free(v);
+  v = e;
+  n = 1;
+}
+
+template <class C, class AHashFns, int N, class A> inline void
+NBlockHash<C, AHashFns, N, A>::reset() {
+  if (v)
+    memset(v, 0, n * N * sizeof(C));
+}
+
+template <class C, class AHashFns, int N, class A> inline int
+NBlockHash<C, AHashFns, N, A>::count() {
+  int nelements = 0;
+  C *l = last();
+  for (C *xx = first(); xx < l; xx++) 
+    if (*xx)
+      nelements++;
+  return nelements;
+}
+
+template <class C, class AHashFns, int N, class A> inline void 
+NBlockHash<C, AHashFns, N, A>::copy(const NBlockHash<C, AHashFns, N, A> &hh) {
+  clear();
+  n = hh.n;
+  i = hh.i;
+  if (hh.v == &hh.e[0]) { 
+    memcpy(e, &hh.e[0], sizeof(e));
+    v = e;
+  } else {
+    if (hh.v) {
+      v = (C*)A::alloc(n * sizeof(C) * N);
+      memcpy(v, hh.v, n * sizeof(C) * N);
+    } else
+      v = 0;
+  }
+}
+
+template <class C, class AHashFns, int N, class A> inline void 
+NBlockHash<C, AHashFns, N, A>::move(NBlockHash<C, AHashFns, N, A> &hh) {
+  clear();
+  n = hh.n;
+  i = hh.i;
+  v = hh.v;
+  if (hh.v == &hh.e[0]) { 
+    memcpy(e, &hh.e[0], sizeof(e));
+    v = e;
+  }
+  hh.clear();
+}
+
+void test_map();
+
+#endif
diff --git a/lib/ts/MatcherUtils.cc b/lib/ts/MatcherUtils.cc
new file mode 100644
index 00000000..22547386
--- /dev/null
+++ b/lib/ts/MatcherUtils.cc
@@ -0,0 +1,607 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  MatcherUtils.cc - Various helper routines used in ControlMatcher
+ *                    and ReverseProxy
+ *
+ *
+ ****************************************************************************/
+
+#include "libts.h"      /* MAGIC_EDITING_TAG */
+
+// char* readIntoBuffer(const char* file_path, const char* module_name,
+//                          int* read_size_ptr)
+//
+//  Attempts to open and read arg file_path into a buffer allocated
+//   off the heap (via malloc() )  Returns a pointer to the buffer
+//   is successful and NULL otherwise.
+//
+//  CALLEE is responsibled for deallocating the buffer via free()
+//
+char *
+readIntoBuffer(const char *file_path, const char *module_name, int *read_size_ptr)
+{
+
+  int fd;
+  struct stat file_info;
+  char *file_buf;
+  int read_size = 0;
+
+  if (read_size_ptr != NULL) {
+    *read_size_ptr = 0;
+  }
+  // Open the file for Blocking IO.  We will be reading this
+  //   at start up and infrequently afterward
+  if ((fd = open(file_path, O_RDONLY | _O_ATTRIB_NORMAL)) < 0) {
+    Error("%s Can not open %s file : %s", module_name, file_path, strerror(errno));
+    return NULL;
+  }
+
+  if (fstat(fd, &file_info) < 0) {
+    Error("%s Can not stat %s file : %s", module_name, file_path, strerror(errno));
+    close(fd);
+    return NULL;
+  }
+
+  if (file_info.st_size < 0) {
+    Error("%s Can not get correct file size for %s file : %" PRId64 "", module_name, file_path, (int64_t) file_info.st_size);
+    close(fd);
+    return NULL;
+  }
+  // Allocate a buffer large enough to hold the entire file
+  //   File size should be small and this makes it easy to
+  //   do two passes on the file
+  file_buf = (char *)ats_malloc(file_info.st_size + 1);
+  // Null terminate the buffer so that string operations will work
+  file_buf[file_info.st_size] = '\0';
+
+  read_size = (file_info.st_size > 0) ? read(fd, file_buf, file_info.st_size) : 0;
+
+  // Check to make sure that we got the whole file
+  if (read_size < 0) {
+    Error("%s Read of %s file failed : %s", module_name, file_path, strerror(errno));
+    ats_free(file_buf);
+    file_buf = NULL;
+  } else if (read_size < file_info.st_size) {
+    // We don't want to signal this error on WIN32 because the sizes
+    // won't match if the file contains any CR/LF sequence.
+    Error("%s Only able to read %d bytes out %d for %s file",
+          module_name, read_size, (int) file_info.st_size, file_path);
+    file_buf[read_size] = '\0';
+  }
+
+  if (file_buf && read_size_ptr) {
+    *read_size_ptr = read_size;
+  }
+
+  close(fd);
+
+  return file_buf;
+}
+
+// int unescapifyStr(char* buffer)
+//
+//   Unescapifies a URL without a making a copy.
+//    The passed in string is modified
+//
+int
+unescapifyStr(char *buffer)
+{
+  char *read = buffer;
+  char *write = buffer;
+  char subStr[3];
+
+  subStr[2] = '\0';
+  while (*read != '\0') {
+    if (*read == '%' && *(read + 1) != '\0' && *(read + 2) != '\0') {
+      subStr[0] = *(++read);
+      subStr[1] = *(++read);
+      *write = (char)strtol(subStr, (char **) NULL, 16);
+      read++;
+      write++;
+    } else if (*read == '+') {
+      *write = ' ';
+      write++;
+      read++;
+    } else {
+      *write = *read;
+      write++;
+      read++;
+    }
+  }
+  *write = '\0';
+
+  return (write - buffer);
+}
+
+char const*
+ExtractIpRange(char* match_str, in_addr_t* min, in_addr_t* max) {
+  IpEndpoint ip_min, ip_max;
+  char const* zret = ExtractIpRange(match_str, &ip_min.sa, &ip_max.sa);
+  if (0 == zret) { // success
+    if (ats_is_ip4(&ip_min) && ats_is_ip4(&ip_max)) {
+      if (min) *min = ntohl(ats_ip4_addr_cast(&ip_min));
+      if (max) *max = ntohl(ats_ip4_addr_cast(&ip_max));
+    } else {
+      zret = "The addresses were not IPv4 addresses.";
+    }
+  }
+  return zret;
+}
+
+//   char* ExtractIpRange(char* match_str, sockaddr* addr1,
+//                         sockaddr* addr2)
+//
+//   Attempts to extract either an Ip Address or an IP Range
+//     from match_str.  The range should be two addresses
+//     separated by a hyphen and no spaces
+//
+//   If the extraction is successful, sets addr1 and addr2
+//     to the extracted values (in the case of a single
+//     address addr2 = addr1) and returns NULL
+//
+//   If the extraction fails, returns a static string
+//     that describes the reason for the error.
+//
+const char *
+ExtractIpRange(char *match_str, sockaddr* addr1, sockaddr* addr2)
+{
+  Tokenizer rangeTok("-/");
+  bool mask = strchr(match_str, '/') != NULL;
+  int mask_bits;
+  int mask_val;
+  int numToks;
+  IpEndpoint la1, la2;
+
+  // Extract the IP addresses from match data
+  numToks = rangeTok.Initialize(match_str, SHARE_TOKS);
+
+  if (numToks < 0) {
+    return "no IP address given";
+  } else if (numToks > 2) {
+    return "malformed IP range";
+  }
+
+  if (0 != ats_ip_pton(rangeTok[0], &la1.sa)) {
+    return "malformed IP address";
+  }
+
+  // Handle a IP range
+  if (numToks == 2) {
+
+    if (mask) {
+      if (!ats_is_ip4(&la1)) {
+        return "Masks supported only for IPv4";
+      }
+      // coverity[secure_coding]
+      if (sscanf(rangeTok[1], "%d", &mask_bits) != 1) {
+        return "bad mask specification";
+      }
+
+      if (!(mask_bits >= 0 && mask_bits <= 32)) {
+        return "invalid mask specification";
+      }
+
+      if (mask_bits == 32) {
+        mask_val = 0;
+      } else {
+        mask_val = htonl(0xffffffff >> mask_bits);
+      }
+      in_addr_t a = ats_ip4_addr_cast(&la1);
+      ats_ip4_set(&la2, a | mask_val);
+      ats_ip4_set(&la1, a & (mask_val ^ 0xffffffff));
+
+    } else {
+      if (0 != ats_ip_pton(rangeTok[1], &la2)) {
+        return "malformed ip address at range end";
+      }
+    }
+
+    if (1 == ats_ip_addr_cmp(&la1.sa, &la2.sa)) {
+      return "range start greater than range end";
+    }
+
+    ats_ip_copy(addr2, &la2);
+  } else {
+    ats_ip_copy(addr2, &la1);
+  }
+
+  ats_ip_copy(addr1, &la1);
+  return NULL;
+}
+
+// char* tokLine(char* buf, char** last, char cont)
+//
+//  Similar to strtok_r but only tokenizes on '\n'
+//   and will return tokens that are empty strings
+//
+char *
+tokLine(char *buf, char **last, char cont)
+{
+  char *start;
+  char *cur;
+  char *prev = NULL;
+
+  if (buf != NULL) {
+    start = cur = buf;
+    *last = buf;
+  } else {
+    start = cur = (*last) + 1;
+  }
+
+  while (*cur != '\0') {
+    if (*cur == '\n') {
+      if (cont != '\0' && prev != NULL && *prev == cont) {
+        *prev = ' ';
+        *cur = ' ';
+      }
+      else {
+        *cur = '\0';
+        *last = cur;
+        return start;
+      }
+    }
+    prev = cur++;
+  }
+
+  // Return the last line even if it does
+  //  not end in a newline
+  if (cur > (*last + 1)) {
+    *last = cur - 1;
+    return start;
+  }
+
+  return NULL;
+}
+
+const char *matcher_type_str[] = {
+  "invalid",
+  "host",
+  "domain",
+  "ip",
+  "url_regex",
+  "url",
+  "host_regex"
+};
+
+// char* processDurationString(char* str, int* seconds)
+//
+//   Take a duration sting which is composed of
+//      digits followed by a unit specifier
+//         w - week
+//         d - day
+//         h - hour
+//         m - min
+//         s - sec
+//
+//   Trailing digits without a specifier are
+//    assumed to be seconds
+//
+//   Returns NULL on success and a static
+//    error string on failure
+//
+const char *
+processDurationString(char *str, int *seconds)
+{
+  char *s = str;
+  char *current = str;
+  char unit;
+  int tmp;
+  int multiplier;
+  int result = 0;
+  int len;
+
+  if (str == NULL) {
+    return "Missing time";
+  }
+
+  len = strlen(str);
+  for (int i = 0; i < len; i++) {
+    if (!ParseRules::is_digit(*current)) {
+
+      // Make sure there is a time to proces
+      if (current == s) {
+        return "Malformed time";
+      }
+
+      unit = *current;
+
+      switch (unit) {
+      case 'w':
+        multiplier = 7 * 24 * 60 * 60;
+        break;
+      case 'd':
+        multiplier = 24 * 60 * 60;
+        break;
+      case 'h':
+        multiplier = 60 * 60;
+        break;
+      case 'm':
+        multiplier = 60;
+        break;
+      case 's':
+        multiplier = 1;
+        break;
+      case '-':
+        return "Negative time not permitted";
+      default:
+        return "Invalid time unit specified";
+      }
+
+      *current = '\0';
+
+      // coverity[secure_coding]
+      if (sscanf(s, "%d", &tmp) != 1) {
+        // Really should not happen since everything
+        //   in the string is digit
+        ink_assert(0);
+        return "Malformed time";
+      }
+
+      result += (multiplier * tmp);
+      s = current + 1;
+
+    }
+    current++;
+  }
+
+  // Read any trailing seconds
+  if (current != s) {
+    // coverity[secure_coding]
+    if (sscanf(s, "%d", &tmp) != 1) {
+      // Really should not happen since everything
+      //   in the string is digit
+      ink_assert(0);
+      return "Malformed time";
+    } else {
+      result += tmp;
+    }
+  }
+  // We rolled over the int
+  if (result < 0) {
+    return "Time too big";
+  }
+
+  *seconds = result;
+  return NULL;
+}
+
+const matcher_tags http_dest_tags = {
+  "dest_host", "dest_domain", "dest_ip", "url_regex", "url", "host_regex", true
+};
+
+const matcher_tags ip_allow_tags = {
+  NULL, NULL, "src_ip", NULL, NULL, NULL, false
+};
+
+const matcher_tags socks_server_tags = {
+  NULL, NULL, "dest_ip", NULL, NULL, NULL, false
+};
+
+// char* parseConfigLine(char* line, matcher_line* p_line,
+//                       const matcher_tags* tags)
+//
+//   Parse out a config file line suitable for passing to
+//    a ControlMatcher object
+//
+//   If successful, NULL is returned.  If unsuccessful,
+//     a static error string is returned
+//
+const char *
+parseConfigLine(char *line, matcher_line *p_line, const matcher_tags * tags)
+{
+  enum pState
+  {
+    FIND_LABEL, PARSE_LABEL,
+    PARSE_VAL, START_PARSE_VAL, CONSUME
+  };
+
+  pState state = FIND_LABEL;
+  bool inQuote = false;
+  char *copyForward = NULL;
+  char *copyFrom = NULL;
+  char *s = line;
+  char *label = NULL;
+  char *val = NULL;
+  int num_el = 0;
+  matcher_type type = MATCH_NONE;
+
+  // Zero out the parsed line structure
+  memset(p_line, 0, sizeof(matcher_line));
+
+  if (*s == '\0') {
+    return NULL;
+  }
+
+  do {
+
+    switch (state) {
+    case FIND_LABEL:
+      if (!isspace(*s)) {
+        state = PARSE_LABEL;
+        label = s;
+      }
+      s++;
+      break;
+    case PARSE_LABEL:
+      if (*s == '=') {
+        *s = '\0';
+        state = START_PARSE_VAL;
+      }
+      s++;
+      break;
+    case START_PARSE_VAL:
+      // Init state needed for parsing values
+      copyForward = NULL;
+      copyFrom = NULL;
+
+      if (*s == '"') {
+        inQuote = true;
+        val = s + 1;
+      } else if (*s == '\\') {
+        inQuote = false;
+        val = s + 1;
+      } else {
+        inQuote = false;
+        val = s;
+
+      }
+
+      if (inQuote == false && (isspace(*s) || *(s + 1) == '\0')) {
+        state = CONSUME;
+      } else {
+        state = PARSE_VAL;
+      }
+
+      s++;
+      break;
+    case PARSE_VAL:
+      if (inQuote == true) {
+        if (*s == '\\') {
+          // The next character is esacped
+          //
+          // To remove the escaped character
+          // we need to copy
+          //  the rest of the entry over it
+          //  but since we do not know where the
+          //  end is right now, defer the work
+          //  into the future
+
+          if (copyForward != NULL) {
+            // Perform the prior copy forward
+            int bytesCopy = s - copyFrom;
+            memcpy(copyForward, copyFrom, s - copyFrom);
+            ink_assert(bytesCopy > 0);
+
+            copyForward += bytesCopy;
+            copyFrom = s + 1;
+          } else {
+            copyForward = s;
+            copyFrom = s + 1;
+          }
+
+          // Scroll past the escape character
+          s++;
+
+          // Handle the case that places us
+          //  at the end of the file
+          if (*s == '\0') {
+            break;
+          }
+        } else if (*s == '"') {
+          state = CONSUME;
+          *s = '\0';
+        }
+      } else if ((*s == '\\' && ParseRules::is_digit(*(s + 1)))
+                 || !ParseRules::is_char(*s)) {
+        // INKqa10511
+        // traffic server need to handle unicode characters
+        // right now ignore the entry
+        return "Unrecognized encoding scheme";
+      } else if (isspace(*s)) {
+        state = CONSUME;
+        *s = '\0';
+      }
+
+      s++;
+
+      // If we are now at the end of the line,
+      //   we need to consume final data
+      if (*s == '\0') {
+        state = CONSUME;
+      }
+      break;
+    case CONSUME:
+      break;
+    }
+
+    if (state == CONSUME) {
+
+      // See if there are any quote copy overs
+      //   we've pushed into the future
+      if (copyForward != NULL) {
+        int toCopy = (s - 1) - copyFrom;
+        memcpy(copyForward, copyFrom, toCopy);
+        *(copyForward + toCopy) = '\0';
+      }
+
+      p_line->line[0][num_el] = label;
+      p_line->line[1][num_el] = val;
+      type = MATCH_NONE;
+
+      // Check to see if this the primary specifier we are looking for
+      if (tags->match_ip && strcasecmp(tags->match_ip, label) == 0) {
+        type = MATCH_IP;
+      } else if (tags->match_host && strcasecmp(tags->match_host, label) == 0) {
+        type = MATCH_HOST;
+      } else if (tags->match_domain && strcasecmp(tags->match_domain, label) == 0) {
+        type = MATCH_DOMAIN;
+      } else if (tags->match_regex && strcasecmp(tags->match_regex, label) == 0) {
+        type = MATCH_REGEX;
+      } else if (tags->match_url && strcasecmp(tags->match_url, label) == 0) {
+        type = MATCH_URL;
+      } else if (tags->match_host_regex && strcasecmp(tags->match_host_regex, label) == 0) {
+        type = MATCH_HOST_REGEX;
+      }
+      // If this a destination tag, use it
+      if (type != MATCH_NONE) {
+        // Check to see if this second destination specifier
+        if (p_line->type != MATCH_NONE) {
+          if (tags->dest_error_msg == false) {
+            return "Muliple Sources Specified";
+          } else {
+            return "Muliple Destinations Specified";
+          }
+        } else {
+          p_line->dest_entry = num_el;
+          p_line->type = type;
+        }
+      }
+      num_el++;
+
+      if (num_el > MATCHER_MAX_TOKENS) {
+        return "Malformed line: Too many tokens";
+      }
+
+      state = FIND_LABEL;
+    }
+  } while (*s != '\0');
+
+  p_line->num_el = num_el;
+
+  if (state != CONSUME && state != FIND_LABEL) {
+    return "Malformed entry";
+  }
+
+  if (!tags->empty() && p_line->type == MATCH_NONE) {
+    if (tags->dest_error_msg == false) {
+      return "No source specifier";
+    } else {
+      return "No destination specifier";
+    }
+  }
+
+  return NULL;
+}
diff --git a/lib/ts/MatcherUtils.h b/lib/ts/MatcherUtils.h
new file mode 100644
index 00000000..debaebbe
--- /dev/null
+++ b/lib/ts/MatcherUtils.h
@@ -0,0 +1,134 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  MatcherUtils.h - Various helper routines used in ControlMatcher
+ *                    and ReverseProxy
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _MATCHER_UTILS_H_
+#define _MATCHER_UTILS_H_
+
+#include "ParseRules.h"
+// Look in MatcherUtils.cc for comments on function usage
+char *readIntoBuffer(const char *file_path, const char *module_name, int *read_size_ptr);
+
+int unescapifyStr(char *buffer);
+
+/** Extract an IP range.
+    @a min and @a max should be at least the size of @c sockaddr_in6 to hold
+    an IP address.
+*/
+char const* ExtractIpRange(
+  char *match_str,
+  sockaddr* min,
+  sockaddr* max
+);
+
+/// Convenience overload for IPv4.
+char const* ExtractIpRange(
+  char *match_str,
+  in_addr_t * addr1, ///< [in,out] Returned address in host order.
+  in_addr_t * addr2 ///< [in,out] Returned address in host order.
+);
+
+/// Convenience overload for IPv6.
+inline char const* ExtractIpRange(
+  char *match_str,
+  sockaddr_in6* addr1, ///< [in,out] Returned address in network order.
+  sockaddr_in6* addr2 ///< [in,out] Returned address in network order.
+) {
+  return ExtractIpRange(match_str, ats_ip_sa_cast(addr1), ats_ip_sa_cast(addr2));
+}
+
+char *tokLine(char *buf, char **last, char cont = '\0');
+
+const char *processDurationString(char *str, int *seconds);
+
+// The first class types we support matching on
+enum matcher_type
+{ MATCH_NONE, MATCH_HOST, MATCH_DOMAIN,
+  MATCH_IP, MATCH_REGEX, MATCH_URL, MATCH_HOST_REGEX
+};
+extern const char *matcher_type_str[];
+
+// A parsed config file line
+const int MATCHER_MAX_TOKENS = 40;
+struct matcher_line
+{
+  matcher_type type;            // dest type
+  int dest_entry;               // entry which specifies the destination
+  int num_el;                   // Number of elements
+  char *line[2][MATCHER_MAX_TOKENS];    // label, value pairs
+  int line_num;                 // config file line number
+  matcher_line *next;           // use for linked list
+};
+
+// Tag set to use to determining primary selector type
+struct matcher_tags
+{
+  const char *match_host;
+  const char *match_domain;
+  const char *match_ip;
+  const char *match_regex;
+  const char *match_url;
+  const char *match_host_regex;
+  bool dest_error_msg;          // whether to use src or destination in any error messages
+
+  bool empty() const {
+    return this->match_host == NULL &&
+      this->match_domain == NULL &&
+      this->match_ip == NULL &&
+      this->match_regex == NULL &&
+      this->match_url == NULL &&
+      this->match_host_regex == NULL;
+  }
+
+};
+
+extern const matcher_tags http_dest_tags;
+extern const matcher_tags ip_allow_tags;
+extern const matcher_tags socks_server_tags;
+
+const char *parseConfigLine(char *line, matcher_line * p_line, const matcher_tags * tags);
+
+// inline void LowerCaseStr(char* str)
+//
+//   Modifies str so all characters are lower
+//     case
+//
+static inline void
+LowerCaseStr(char *str)
+{
+  if (!str)
+    return;
+  while (*str != '\0') {
+    *str = ParseRules::ink_tolower(*str);
+    str++;
+  }
+}
+
+#endif
diff --git a/lib/ts/MimeTable.cc b/lib/ts/MimeTable.cc
new file mode 100644
index 00000000..213da4f8
--- /dev/null
+++ b/lib/ts/MimeTable.cc
@@ -0,0 +1,211 @@
+/** @file
+
+  MimeTableEntry and MimeTable definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"        /* MAGIC_EDITING_TAG */
+
+MimeTableEntry
+  MimeTable::m_table[] = {
+  {"ai", "application/postscript", "8bit", "text"},
+  {"aif", "audio/x-aiff", "binary", "sound"},
+  {"aifc", "audio/x-aiff", "binary", "sound"},
+  {"aiff", "audio/x-aiff", "binary", "sound"},
+  {"arj", "application/x-arj-compressed", "binary", "binary"},
+  {"au", "audio/basic", "binary", "sound"},
+  {"avi", "video/x-msvideo", "binary", "movie"},
+  {"bcpio", "application/x-bcpio", "binary", "binary"},
+  {"bin", "application/macbinary", "macbinary", "binary"},
+  {"c", "text/plain", "7bit", "text"},
+  {"cc", "text/plain", "7bit", "text"},
+  {"cdf", "application/x-netcdf", "binary", "binary"},
+  {"cpio", "application/x-cpio", "binary", "binary"},
+  {"csh", "application/x-csh", "7bit", "text"},
+  {"doc", "application/msword", "binary", "binary"},
+  {"dvi", "application/x-dvi", "binary", "binary"},
+  {"eps", "application/postscript", "8bit", "text"},
+  {"etx", "text/x-setext", "7bit", "text"},
+  {"exe", "application/octet-stream", "binary", "binary"},
+  {"f90", "text/plain", "7bit", "text"},
+  {"gif", "image/gif", "binary", "image"},
+  {"gtar", "application/x-gtar", "binary", "binary"},
+  {"gz", "application/x-gzip", "x-gzip", "binary"},
+  {"h", "text/plain", "7bit", "text"},
+  {"hdf", "application/x-hdf", "binary", "binary"},
+  {"hh", "text/plain", "7bit", "text"},
+  {"hqx", "application/mac-binhex40", "mac-binhex40", "binary"},
+  {"htm", "text/html", "8bit", "text"},
+  {"html", "text/html", "8bit", "text"},
+  {"ief", "image/ief", "binary", "image"},
+  {"jpe", "image/jpeg", "binary", "image"},
+  {"jpeg", "image/jpeg", "binary", "image"},
+  {"jpg", "image/jpeg", "binary", "image"},
+  {"latex", "application/x-latex", "8bit", "text"},
+  {"lha", "application/x-lha-compressed", "binary", "binary"},
+  {"lsm", "text/plain", "7bit", "text"},
+  {"lzh", "application/x-lha-compressed", "binary", "binary"},
+  {"m", "text/plain", "7bit", "text"},
+  {"man", "application/x-troff-man", "7bit", "text"},
+  {"me", "application/x-troff-me", "7bit", "text"},
+  {"mif", "application/x-mif", "binary", "binary"},
+  {"mime", "www/mime", "8bit", "text"},
+  {"mov", "video/quicktime", "binary", "movie"},
+  {"movie", "video/x-sgi-movie", "binary", "movie"},
+  {"mp2", "audio/mpeg", "binary", "sound"},
+  {"mp3", "audio/mpeg", "binary", "sound"},
+  {"mpe", "video/mpeg", "binary", "movie"},
+  {"mpeg", "video/mpeg", "binary", "movie"},
+  {"mpg", "video/mpeg", "binary", "movie"},
+  {"ms", "application/x-troff-ms", "7bit", "text"},
+  {"msw", "application/msword", "binary", "binary"},
+  {"mwrt", "application/macwriteii", "binary", "binary"},
+  {"nc", "application/x-netcdf", "binary", "binary"},
+  {"oda", "application/oda", "binary", "binary"},
+  {"pbm", "image/x-portable-bitmap", "binary", "image"},
+  {"pdf", "application/pdf", "binary", "binary"},
+  {"pgm", "image/x-portable-graymap", "binary", "image"},
+  {"pic", "application/pict", "binary", "image"},
+  {"pict", "application/pict", "binary", "image"},
+  {"pnm", "image/x-portable-anymap", "binary", "image"},
+  {"ppm", "image/x-portable-pixmap", "binary", "image"},
+  {"ps", "application/postscript", "8bit", "text"},
+  {"qt", "video/quicktime", "binary", "movie"},
+  {"ras", "image/cmu-raster", "binary", "image"},
+  {"rgb", "image/x-rgb", "binary", "image"},
+  {"roff", "application/x-troff", "7bit", "text"},
+  {"rpm", "application/x-rpm", "binary", "binary"},
+  {"rtf", "application/x-rtf", "7bit", "binary"},
+  {"rtx", "text/richtext", "7bit", "text"},
+  {"sh", "application/x-sh", "7bit", "text"},
+  {"shar", "application/x-shar", "8bit", "text"},
+  {"sit", "application/stuffit", "binary", "binary"},
+  {"snd", "audio/basic", "binary", "sound"},
+  {"src", "application/x-wais-source", "7bit", "text"},
+  {"sv4cpio", "application/x-sv4cpio", "binary", "binary"},
+  {"sv4crc", "application/x-sv4crc", "binary", "binary"},
+  {"t", "application/x-troff", "7bit", "text"},
+  {"tar", "application/x-tar", "binary", "binary"},
+  {"tcl", "application/x-tcl", "7bit", "text"},
+  {"tex", "application/x-tex", "8bit", "text"},
+  {"texi", "application/x-texinfo", "7bit", "text"},
+  {"texinfo", "application/x-texinfo", "7bit", "text"},
+  {"tgz", "application/x-tar", "x-gzip", "binary"},
+  {"tif", "image/tiff", "binary", "image"},
+  {"tiff", "image/tiff", "binary", "image"},
+  {"tr", "application/x-troff", "7bit", "text"},
+  {"tsv", "text/tab-separated-values", "7bit", "text"},
+  {"txt", "text/plain", "7bit", "text"},
+  {"ustar", "application/x-ustar", "binary", "binary"},
+  {"wav", "audio/x-wav", "binary", "sound"},
+  {"xbm", "image/x-xbitmap", "binary", "image"},
+  {"xpm", "image/x-xpixmap", "binary", "image"},
+  {"xwd", "image/x-xwindowdump", "binary", "image"},
+  {"Z", "application/x-compressed", "x-compress", "binary"},
+  {"zip", "application/x-zip-compressed", "zip", "binary"}
+};
+int
+  MimeTable::m_table_size = (sizeof(MimeTable::m_table)) / (sizeof(MimeTable::m_table[0]));
+MimeTableEntry
+MimeTable::m_unknown = { "unknown", "application/x-unknown-content-type", "binary", "unknown" };
+MimeTable
+  mimeTable;
+////////////////////////////////////////////////////////////////
+//
+//  class MimeTable
+//
+////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////
+//
+//  MimeTable::get_entry_path()
+//
+////////////////////////////////////////////////////////////////
+MimeTableEntry *
+MimeTable::get_entry_path(const char *path)
+{
+  const char *p = strrchr(path, '.');
+  MimeTableEntry *e = 0;
+
+  if (p)
+    e = get_entry(p + 1);
+  else {
+    /////////////////////////////////////////
+    // file has no extension. make a best  //
+    // guess, or return null for unknown   //
+    /////////////////////////////////////////
+    if (ParseRules::strcasestr(path, "index") ||
+        ParseRules::strcasestr(path, "README") ||
+        ParseRules::strcasestr(path, "ls-lR") ||
+        ParseRules::strcasestr(path, "config") || (path[0] == '\0') || (path[strlen(path) - 1] == '/'))
+      e = get_entry("txt");
+  }
+  if (e == 0)
+    e = &m_unknown;
+
+  return (e);
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  MimeTable::get_entry()
+//
+////////////////////////////////////////////////////////////////
+MimeTableEntry *
+MimeTable::get_entry(const char *name)
+{
+  MimeTableEntry key;
+
+  key.name = name;
+
+  // do a binary search. extensions are unique
+  int low = 0;
+  int high = m_table_size - 1;
+  int mid = ((high - low) / 2) + low;
+  int found = -1;
+
+  if (!name[0])
+    return (0);
+
+
+  while (1) {
+    if (m_table[mid] == key) {
+      found = mid;
+      break;
+    } else if (m_table[mid] < key) {
+      if (mid == high) {
+        found = -1;
+        break;
+      } else {
+        low = mid + 1;
+        mid = ((high - low) / 2) + low;
+      }
+    } else {
+      if (mid == low) {
+        found = -1;
+        break;
+      } else {
+        high = mid - 1;
+        mid = ((high - low) / 2) + low;
+      }
+    }
+  }
+
+  return ((found >= 0) ? (&m_table[found]) : 0);
+}
diff --git a/lib/ts/MimeTable.h b/lib/ts/MimeTable.h
new file mode 100644
index 00000000..149d5196
--- /dev/null
+++ b/lib/ts/MimeTable.h
@@ -0,0 +1,75 @@
+/** @file
+
+  MimeTableEntry and MimeTable declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_MimeTable_h_)
+#define _MimeTable_h_
+
+#include <string.h>
+#include "ink_defs.h"
+#include "ink_string.h"
+
+struct MimeTableEntry
+{
+  const char *name;
+  const char *mime_type;
+  const char *mime_encoding;
+  const char *icon;
+
+  friend int operator ==(const MimeTableEntry & a, const MimeTableEntry & b)
+  {
+    return (strcasecmp(a.name, b.name) == 0);
+  }
+  friend int operator <(const MimeTableEntry & a, const MimeTableEntry & b)
+  {
+    return (strcasecmp(a.name, b.name) < 0);
+  }
+  friend int operator >(const MimeTableEntry & a, const MimeTableEntry & b)
+  {
+    return (strcasecmp(a.name, b.name) < 0);
+  }
+};
+
+class MimeTable
+{
+public:
+  MimeTable()
+  {
+  }
+   ~MimeTable()
+  {
+  }
+
+  MimeTableEntry *get_entry_path(const char *path);
+  MimeTableEntry *get_entry(const char *name);
+
+private:
+  static MimeTableEntry m_table[];
+  static int m_table_size;
+  static MimeTableEntry m_unknown;
+
+private:
+  MimeTable(const MimeTable &);
+  MimeTable & operator =(const MimeTable &);
+};
+extern MimeTable mimeTable;
+#endif
diff --git a/lib/ts/ParseRules.cc b/lib/ts/ParseRules.cc
new file mode 100644
index 00000000..1834bbd3
--- /dev/null
+++ b/lib/ts/ParseRules.cc
@@ -0,0 +1,309 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*************************** -*- Mod: C++ -*- ******************************
+
+   ParseRules.h --
+
+
+ ****************************************************************************/
+
+#include "libts.h"      /* MAGIC_EDITING_TAG */
+
+const unsigned int parseRulesCType[256] = {
+#include "ParseRulesCType"
+};
+const char parseRulesCTypeToUpper[256] = {
+#include "ParseRulesCTypeToUpper"
+};
+const char parseRulesCTypeToLower[256] = {
+#include "ParseRulesCTypeToLower"
+};
+
+unsigned char *
+ParseRules::scan_while(unsigned char *ptr, unsigned int n, uint32_t bitmask)
+{
+  unsigned int i;
+  uint32_t *wptr;
+  unsigned char *align_ptr;
+  uintptr_t f_bytes, b_bytes, words, align_off;
+
+  align_off = ((uintptr_t) ptr & 3);
+  align_ptr = (unsigned char *) (((uintptr_t) ptr) & ~3);
+
+  f_bytes = (align_off ? 4 - align_off : 0);
+
+  words = (n - f_bytes) >> 2;
+
+  if (words == 0) {
+    for (i = 0; i < n; i++)
+      if (!is_type(ptr[i], bitmask))
+        return (&ptr[i]);
+  } else {
+    wptr = ((uint32_t *) align_ptr) + (align_off ? 1 : 0);
+    switch (align_off) {
+    case 1:
+      if (!is_type(align_ptr[1], bitmask))
+        return (&ptr[1]);
+    case 2:
+      if (!is_type(align_ptr[2], bitmask))
+        return (&ptr[2]);
+    case 3:
+      if (!is_type(align_ptr[3], bitmask))
+        return (&ptr[3]);
+      break;
+    default:
+      break;
+    }
+
+    b_bytes = n - ((words << 2) + f_bytes);
+
+    for (i = 0; i < words; i++) {
+      uint32_t word = wptr[i];
+      uint32_t result = (is_type(((word >> 0) & 0xFF), bitmask) &
+                       is_type(((word >> 8) & 0xFF), bitmask) &
+                       is_type(((word >> 16) & 0xFF), bitmask) & is_type(((word >> 24) & 0xFF), bitmask));
+      if (result == 0) {
+        unsigned char *cptr = (unsigned char *) &(wptr[i]);
+        if (!is_type(cptr[0], bitmask))
+          return (&cptr[0]);
+        if (!is_type(cptr[1], bitmask))
+          return (&cptr[1]);
+        if (!is_type(cptr[2], bitmask))
+          return (&cptr[2]);
+        return (&cptr[3]);
+      }
+    }
+
+    align_ptr = (unsigned char *) &(wptr[words]);
+
+    switch (b_bytes) {
+    case 1:
+      if (!is_type(align_ptr[0], bitmask))
+        return (&align_ptr[0]);
+      break;
+    case 2:
+      if (!is_type(align_ptr[0], bitmask))
+        return (&align_ptr[0]);
+      if (!is_type(align_ptr[1], bitmask))
+        return (&align_ptr[1]);
+      break;
+    case 3:
+      if (!is_type(align_ptr[0], bitmask))
+        return (&align_ptr[0]);
+      if (!is_type(align_ptr[1], bitmask))
+        return (&align_ptr[1]);
+      if (!is_type(align_ptr[2], bitmask))
+        return (&align_ptr[2]);
+      break;
+    default:
+      break;
+    }
+  }
+  return 0;
+}
+
+
+void
+ParseRules::ink_tolower_buffer(char *ptr, unsigned int n)
+{
+  unsigned int i;
+
+  if (n < 8) {
+    for (i = 0; i < n; i++)
+      ptr[i] = ParseRules::ink_tolower(ptr[i]);
+  } else {
+    uintptr_t fpad = 4 - ((uintptr_t) ptr & 3);
+    uintptr_t words = (n - fpad) >> 2;
+    uintptr_t bpad = n - fpad - (words << 2);
+
+    switch (fpad) {
+    case 3:
+      *ptr = ParseRules::ink_tolower(*ptr);
+      ++ptr;
+    case 2:
+      *ptr = ParseRules::ink_tolower(*ptr);
+      ++ptr;
+    case 1:
+      *ptr = ParseRules::ink_tolower(*ptr);
+      ++ptr;
+    default:
+      break;
+    }
+
+    uint32_t *wptr = (uint32_t *) ptr;
+    for (i = 0; i < words; i++) {
+      uint32_t word = *wptr;
+      ((unsigned char *) &word)[0] = ParseRules::ink_tolower(((unsigned char *) &word)[0]);
+      ((unsigned char *) &word)[1] = ParseRules::ink_tolower(((unsigned char *) &word)[1]);
+      ((unsigned char *) &word)[2] = ParseRules::ink_tolower(((unsigned char *) &word)[2]);
+      ((unsigned char *) &word)[3] = ParseRules::ink_tolower(((unsigned char *) &word)[3]);
+      *wptr++ = word;
+    }
+
+    switch (bpad) {
+    case 3:
+      *ptr = ParseRules::ink_tolower(*ptr);
+      ++ptr;
+    case 2:
+      *ptr = ParseRules::ink_tolower(*ptr);
+      ++ptr;
+    case 1:
+      *ptr = ParseRules::ink_tolower(*ptr);
+      ++ptr;
+    default:
+      break;
+    }
+  }
+}
+
+// Implement our atol() / strtol() utility functions. Note that these will
+// deal with two cases atol does not:
+//
+//   1. They will handle both base 10 and base 16, always. 0x indicates hex.
+//   2. They all honor the SI multipliers (i.e. K, M, G and T.
+//
+int64_t
+ink_atoi64(const char *str)
+{
+  int64_t num = 0;
+  int negative = 0;
+
+  while (*str && ParseRules::is_wslfcr(*str))
+    str += 1;
+
+  if (unlikely(str[0] == '0' && str[1] == 'x')) {
+    str += 2;
+    while (*str && ParseRules::is_hex(*str))
+      num = (num << 4) + ink_get_hex(*str++);
+  } else {
+    if (unlikely(*str == '-')) {
+      negative = 1;
+      str += 1;
+    }
+
+    /*
+      NOTE: we first compute the value as negative then correct the
+      sign back to positive. This enables us to correctly parse MININT.
+    */
+    while (*str && ParseRules::is_digit(*str))
+      num = (num * 10) - (*str++ - '0');
+#if USE_SI_MULTILIERS
+    if (*str) {
+      if (*str == 'K')
+        num = num * (1LL << 10);
+      else if (*str == 'M')
+        num = num * (1LL << 20);
+      else if (*str == 'G')
+        num = num * (1LL << 30);
+      else if (*str == 'T')
+        num = num * (1LL << 40);
+    }
+#endif
+    if (!negative)
+      num = -num;
+  }
+  return num;
+}
+
+uint64_t
+ink_atoui64(const char *str)
+{
+  uint64_t num = 0;
+
+  while (*str && ParseRules::is_wslfcr(*str))
+    str += 1;
+
+  if (unlikely(str[0] == '0' && str[1] == 'x')) {
+    str += 2;
+    while (*str && ParseRules::is_hex(*str))
+      num = (num << 4) + ink_get_hex(*str++);
+  } else {
+    while (*str && ParseRules::is_digit(*str))
+      num = (num * 10) + (*str++ - '0');
+#if USE_SI_MULTILIERS
+    if (*str) {
+      if (*str == 'K')
+        num = num * (1LL << 10);
+      else if (*str == 'M')
+        num = num * (1LL << 20);
+      else if (*str == 'G')
+        num = num * (1LL << 30);
+      else if (*str == 'T')
+        num = num * (1LL << 40);
+    }
+#endif
+  }
+  return num;
+}
+
+int64_t
+ink_atoi64(const char *str, int len)
+{
+  int64_t num = 0;
+  int negative = 0;
+
+  while (len > 0 && *str && ParseRules::is_wslfcr(*str)) {
+    str += 1;
+    len--;
+  }
+
+  if (len <= 1)
+    return 0;
+
+  if (unlikely(str[0] == '0' && len > 1 && str[1] == 'x')) {
+    str += 2;
+    while (len > 0 && *str && ParseRules::is_hex(*str)) {
+      num = (num << 4) + ink_get_hex(*str++);
+      len--;
+    }
+  } else {
+    if (unlikely(*str == '-')) {
+      negative = 1;
+      str += 1;
+    }
+
+    /*
+      NOTE: we first compute the value as negative then correct the
+      sign back to positive. This enables us to correctly parse MININT.
+    */
+    while (len > 0 && *str && ParseRules::is_digit(*str)) {
+      num = (num * 10) - (*str++ - '0');
+      len--;
+    }
+#if USE_SI_MULTILIERS
+    if (len > 0 && *str) {
+      if (*str == 'K')
+        num = num * (1 << 10);
+      else if (*str == 'M')
+        num = num * (1 << 20);
+      else if (*str == 'G')
+        num = num * (1 << 30);
+    }
+#endif
+
+    if (!negative)
+      num = -num;
+  }
+  return num;
+}
diff --git a/lib/ts/ParseRules.h b/lib/ts/ParseRules.h
new file mode 100644
index 00000000..6bc7483e
--- /dev/null
+++ b/lib/ts/ParseRules.h
@@ -0,0 +1,848 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_ParseRules_h_)
+#define _ParseRules_h_
+
+#include <string.h>
+
+#include "ink_defs.h"
+#include "ink_apidefs.h"
+#include "ink_platform.h"
+
+typedef unsigned int CTypeResult;
+
+// Set this to 0 to disable SI
+// decimal multipliers
+#define USE_SI_MULTILIERS    1
+
+#define is_char_BIT         (1 << 0)
+#define is_upalpha_BIT      (1 << 1)
+#define is_loalpha_BIT      (1 << 2)
+#define is_alpha_BIT        (1 << 3)
+#define is_digit_BIT        (1 << 4)
+#define is_ctl_BIT          (1 << 5)
+#define is_ws_BIT           (1 << 6)
+#define is_hex_BIT          (1 << 7)
+#define is_pchar_BIT        (1 << 8)
+#define is_extra_BIT        (1 << 9)
+#define is_safe_BIT         (1 << 10)
+#define is_unsafe_BIT       (1 << 11)
+#define is_national_BIT     (1 << 12)
+#define is_reserved_BIT     (1 << 13)
+#define is_unreserved_BIT   (1 << 14)
+#define is_punct_BIT        (1 << 15)
+#define is_end_of_url_BIT   (1 << 16)
+#define is_tspecials_BIT    (1 << 17)
+#define is_spcr_BIT         (1 << 18)
+#define is_splf_BIT         (1 << 19)
+#define is_wslfcr_BIT       (1 << 20)
+#define is_eow_BIT          (1 << 21)
+#define is_token_BIT        (1 << 22)
+#define is_wildmat_BIT      (1 << 23)
+#define is_sep_BIT          (1 << 24)
+#define is_empty_BIT        (1 << 25)
+#define is_alnum_BIT        (1 << 26)
+#define is_space_BIT        (1 << 27)
+#define is_control_BIT      (1 << 28)
+#define is_mime_sep_BIT     (1 << 29)
+#define is_http_field_name_BIT  (1 << 30)
+/* shut up the DEC compiler */
+#define is_http_field_value_BIT (((CTypeResult)1) << 31)
+
+extern ink_undoc_liapi const CTypeResult parseRulesCType[];
+inkcoreapi extern const char parseRulesCTypeToUpper[];
+inkcoreapi extern const char parseRulesCTypeToLower[];
+
+class ParseRules
+{
+public:
+  ParseRules();
+
+  ////////////////////////////
+  // whitespace definitions //
+  ////////////////////////////
+
+  enum
+  {
+    CHAR_SP = 32,               /* space           */
+    CHAR_HT = 9,                /* horizontal tab  */
+    CHAR_LF = 10,               /* line feed       */
+    CHAR_VT = 11,               /* vertical tab    */
+    CHAR_NP = 12,               /* new page        */
+    CHAR_CR = 13                /* carriage return */
+  };
+
+  /////////////////////
+  // character tests //
+  /////////////////////
+
+  static CTypeResult is_type(char c, uint32_t bit);
+
+  static CTypeResult is_char(char c);   // ASCII 0-127
+  static CTypeResult is_upalpha(char c);        // A-Z
+  static CTypeResult is_loalpha(char c);        // a-z
+  static CTypeResult is_alpha(char c);  // A-Z,a-z
+  static CTypeResult is_digit(char c);  // 0-9
+  static CTypeResult is_ctl(char c);    // ASCII 0-31,127 (includes ws)
+  static CTypeResult is_hex(char c);    // 0-9,A-F,a-f
+  static CTypeResult is_ws(char c);     // SP,HT
+  static CTypeResult is_cr(char c);     // CR
+  static CTypeResult is_lf(char c);     // LF
+  static CTypeResult is_spcr(char c);   // SP,CR
+  static CTypeResult is_splf(char c);   // SP,LF
+  static CTypeResult is_wslfcr(char c); // SP,HT,LF,CR
+  static CTypeResult is_tspecials(char c);      // HTTP chars that need quoting
+  static CTypeResult is_token(char c);  // token (not CTL or specials)
+  static CTypeResult is_extra(char c);  // !,*,QUOT,(,),COMMA
+  static CTypeResult is_safe(char c);   // [$-_.+]
+  static CTypeResult is_unsafe(char c); // SP,DBLQUOT,#,%,<,>
+  static CTypeResult is_national(char c);       // {,},|,BACKSLASH,^,~,[,],`
+  static CTypeResult is_reserved(char c);       // :,/,?,:,@,&,=
+  static CTypeResult is_unreserved(char c);     // alpha,digit,safe,extra,nat.
+  static CTypeResult is_punct(char c);  // !"#$%&'()*+,-./:;<>=?@_{}|~
+  static CTypeResult is_end_of_url(char c);     // NUL,CR,SP
+  static CTypeResult is_eow(char c);    // NUL,CR,LF
+  static CTypeResult is_wildmat(char c);        // \,*,?,[
+  static CTypeResult is_sep(char c);    // NULL,COMMA,':','!',wslfcr
+  static CTypeResult is_empty(char c);  // wslfcr,#
+  static CTypeResult is_alnum(char c);  // 0-9,A-Z,a-z
+  static CTypeResult is_space(char c);  // ' ' HT,VT,NP,CR,LF
+  static CTypeResult is_control(char c);        // 0-31 127
+  static CTypeResult is_mime_sep(char c);       // ()<>,;\"/[]?{} \t
+  static CTypeResult is_http_field_name(char c);        // not : or mime_sep except for @
+  static CTypeResult is_http_field_value(char c);       // not CR, LF, comma, or "
+
+  //////////////////
+  // string tests //
+  //////////////////
+
+  static CTypeResult is_escape(const char *seq);        // %<hex><hex>
+  static CTypeResult is_uchar(const char *seq); // starts unresrvd or is escape
+  static CTypeResult is_pchar(const char *seq); // uchar,:,@,&,=,+ (see code)
+
+  ///////////////////
+  // unimplemented //
+  ///////////////////
+
+  //static CTypeResult   is_comment(const char * str);
+  //static CTypeResult   is_ctext(const char * str);
+
+  ////////////////
+  // operations //
+  ////////////////
+
+  static CTypeResult strncasecmp_eow(const char *s1, const char *s2, int n);
+  static const char *strcasestr(const char *s1, const char *s2);
+  static int strlen_eow(const char *s);
+  static const char *strstr_eow(const char *s1, const char *s2);
+
+  static char ink_toupper(char c);
+  static char ink_tolower(char c);
+  static void ink_tolower_buffer(char *ptr, unsigned int n);
+  static const char *memchr(const char *s, char c, int max_length);
+  static const char *strchr(const char *s, char c);
+
+  static unsigned char *scan_while(unsigned char *ptr, unsigned int n, uint32_t bitmask);
+
+private:
+    ParseRules(const ParseRules &);
+    ParseRules & operator =(const ParseRules &);
+};
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * inline functions definitions
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+inline CTypeResult
+ParseRules::is_type(char c, uint32_t bitmask)
+{
+  return (parseRulesCType[(unsigned char) c] & bitmask);
+}
+
+inline CTypeResult
+ParseRules::is_char(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_char_BIT);
+#else
+  return ((c & 0x80) == 0);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_upalpha(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_upalpha_BIT);
+#else
+  return (c >= 'A' && c <= 'Z');
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_loalpha(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_loalpha_BIT);
+#else
+  return (c >= 'a' && c <= 'z');
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_alpha(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_alpha_BIT);
+#else
+  return (is_upalpha(c) || is_loalpha(c));
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_digit(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_digit_BIT);
+#else
+  return (c >= '0' && c <= '9');
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_alnum(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_alnum_BIT);
+#else
+  return (is_alpha(c) || is_digit(c));
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_ctl(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_ctl_BIT);
+#else
+  return ((!(c & 0x80) && c <= 31) || c == 127);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_ws(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_ws_BIT);
+#else
+  return (c == CHAR_SP || c == CHAR_HT);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_hex(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_hex_BIT);
+#else
+  return ((c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f') || (c >= '0' && c <= '9'));
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_cr(char c)
+{
+  return (c == CHAR_CR);
+}
+
+inline CTypeResult
+ParseRules::is_lf(char c)
+{
+  return (c == CHAR_LF);
+}
+
+inline CTypeResult
+ParseRules::is_splf(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_splf_BIT);
+#else
+  return (c == CHAR_SP || c == CHAR_LF);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_spcr(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_spcr_BIT);
+#else
+  return (c == CHAR_SP || c == CHAR_CR);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_wslfcr(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_wslfcr_BIT);
+#else
+  return ParseRules::is_ws(c) || ParseRules::is_splf(c) || ParseRules::is_spcr(c);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_extra(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_extra_BIT);
+#else
+  switch (c) {
+  case '!':
+  case '*':
+  case '\'':
+  case '(':
+  case ')':
+  case ',':
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_safe(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_safe_BIT);
+#else
+  return (c == '$' || c == '-' || c == '_' || c == '.' || c == '+');
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_unsafe(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_unsafe_BIT);
+#else
+  if (is_ctl(c))
+    return (true);
+
+  switch (c) {
+  case ' ':
+  case '\"':
+  case '#':
+  case '%':
+  case '<':
+  case '>':
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_reserved(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_reserved_BIT);
+#else
+  switch (c) {
+  case ';':
+  case '/':
+  case '?':
+  case ':':
+  case '@':
+  case '&':
+  case '=':
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_national(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_national_BIT);
+#else
+  switch (c) {
+  case '{':
+  case '}':
+  case '|':
+  case '\\':
+  case '^':
+  case '~':
+  case '[':
+  case ']':
+  case '`':
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_unreserved(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_unreserved_BIT);
+#else
+  return (is_alpha(c) || is_digit(c) || is_safe(c) || is_extra(c) || is_national(c));
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_punct(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_punct_BIT);
+#else
+  switch (c) {
+  case '!':
+  case '"':
+  case '#':
+  case '%':
+  case '&':
+  case '\'':
+  case '(':
+  case ')':
+  case '*':
+  case '+':
+  case ',':
+  case '-':
+  case '.':
+  case '/':
+  case ':':
+  case ';':
+  case '<':
+  case '=':
+  case '>':
+  case '?':
+  case '@':
+  case '[':
+  case '\\':
+  case ']':
+  case '^':
+  case '_':
+  case '`':
+  case '{':
+  case '|':
+  case '}':
+  case '~':
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_end_of_url(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_end_of_url_BIT);
+#else
+  return (c == '\0' || c == '\n' || c == ' ' || ParseRules::is_ctl(c)
+    );
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_escape(const char *seq)
+{
+  return (seq[0] == '%' && is_hex(seq[1]) && is_hex(seq[2]));
+}
+
+inline CTypeResult
+ParseRules::is_uchar(const char *seq)
+{
+  return (is_unreserved(seq[0]) || is_escape(seq));
+}
+
+//
+// have to cheat on this one
+//
+inline CTypeResult
+ParseRules::is_pchar(const char *seq)
+{
+#ifndef COMPILE_PARSE_RULES
+  if (*seq != '%')
+    return (parseRulesCType[(uint8_t)*seq] & is_pchar_BIT);
+  else
+    return is_hex(seq[1]) && is_hex(seq[2]);
+#else
+  if (is_unreserved(*seq))
+    return (true);
+
+  switch (seq[0]) {
+  case ':':
+  case '@':
+  case '&':
+  case '=':
+  case '+':
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_tspecials(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_tspecials_BIT);
+#else
+  switch (c) {
+  case '(':
+  case ')':
+  case '<':
+  case '>':
+  case '@':
+  case ',':
+  case ';':
+  case ':':
+  case '\\':
+  case '"':
+  case '/':
+  case '[':
+  case ']':
+  case '?':
+  case '=':
+  case '{':
+  case '}':
+  case CHAR_SP:
+  case CHAR_HT:
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_token(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_token_BIT);
+#else
+  return (is_char(c) && !(is_ctl(c) || is_tspecials(c)));
+#endif
+}
+
+inline char
+ParseRules::ink_toupper(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return parseRulesCTypeToUpper[(unsigned char) c];
+#else
+  int up_case = c;
+  const int up_case_diff = 'a' - 'A';
+
+  if (c >= 'a' && c <= 'z') {
+    up_case = c - up_case_diff;
+  }
+  return (up_case);
+#endif
+}
+
+inline char
+ParseRules::ink_tolower(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return parseRulesCTypeToLower[(unsigned char) c];
+#else
+  int lo_case = c;
+  const int lo_case_diff = 'a' - 'A';
+
+  if (c >= 'A' && c <= 'Z') {
+    lo_case = c + lo_case_diff;
+  }
+  return (lo_case);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_eow(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_eow_BIT);
+#else
+  return (c == '\0' || c == '\r' || c == '\n');
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_wildmat(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_wildmat_BIT);
+#else
+  return (c == '*' || c == '?' || c == '[' || c == '\\');
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_sep(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_sep_BIT);
+#else
+  return (!c || c == ',' || c == ':' || c == '!' || is_wslfcr(c));
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_empty(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_empty_BIT);
+#else
+  return (c == '#' || is_wslfcr(c));
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_space(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_space_BIT);
+#else
+  switch (c) {
+  case CHAR_SP:
+  case CHAR_HT:
+  case CHAR_LF:
+  case CHAR_VT:
+  case CHAR_NP:
+  case CHAR_CR:
+    return (true);
+  }
+  return (false);
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_control(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_control_BIT);
+#else
+  if (((unsigned char) c) < 32 || ((unsigned char) c) == 127)
+    return true;
+  return false;
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_mime_sep(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_mime_sep_BIT);
+#else
+  if ((c == '(') || (c == ')') || (c == '<') || (c == '>') || (c == '@') ||
+      (c == ',') || (c == ';') || (c == '\\') || (c == '\"') ||
+      (c == '/') || (c == '[') || (c == ']') || (c == '?') || (c == '{') || (c == '}') || (c == ' ') || (c == '\t'))
+    return true;
+  return false;
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_http_field_name(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (parseRulesCType[(unsigned char) c] & is_http_field_name_BIT);
+#else
+  if ((c == ':') || (is_mime_sep(c) && (c != '@')))
+    return false;
+  return true;
+#endif
+}
+
+inline CTypeResult
+ParseRules::is_http_field_value(char c)
+{
+#ifndef COMPILE_PARSE_RULES
+  return (CTypeResult) (parseRulesCType[(unsigned char) c] & is_http_field_value_BIT);
+#else
+  switch (c) {
+  case CHAR_CR:
+  case CHAR_LF:
+  case '\"':
+  case ',':
+    return false;
+  }
+  return true;
+#endif
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      inline CTypeResult ParseRules::strncasecmp_eol(s1, s2, count)
+//
+//      This wacky little function compares if two strings <s1> and <s2> match
+//      (case-insensitively) up to <count> characters long, stopping not only
+//      at the end of string ('\0'), but also at end of line (CR or LF).
+//
+//////////////////////////////////////////////////////////////////////////////
+
+inline CTypeResult
+ParseRules::strncasecmp_eow(const char *s1, const char *s2, int count)
+{
+  for (int i = 0; i < count; i++) {
+    const char &a = s1[i];
+    const char &b = s2[i];
+
+    ///////////////////////////////////////////////////////////////
+    // if they are different; only match if both are terminators //
+    ///////////////////////////////////////////////////////////////
+    if (ink_tolower(a) != ink_tolower(b))
+      return (is_eow(a) && is_eow(b));
+  }
+  return (true);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  strlen_eow()
+//
+//  return the length of a string
+//////////////////////////////////////////////////////////////////////////////
+inline int
+ParseRules::strlen_eow(const char *s)
+{
+  for (int i = 0; true; i++) {
+    if (is_eow(s[i]))
+      return (i);
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  strstr_eow()
+//
+//  This function is the same as strstr(), except that it accepts strings
+//  that are terminated with '\r', '\n' or null.
+//  It returns a pointer to the first occurance of s2 within s1 (or null).
+//////////////////////////////////////////////////////////////////////////////
+inline const char *
+ParseRules::strstr_eow(const char *s1, const char *s2)
+{
+  int i1;
+
+  int s2_len = strlen_eow(s2);
+
+  for (i1 = 0; !is_eow(s1[i1]); i1++)
+    if (ink_tolower(s1[i1]) == ink_tolower(s2[0]))
+      if (strncasecmp_eow(&s1[i1], &s2[0], s2_len))
+        return (&s1[i1]);
+
+  return (0);
+}
+
+inline const char *
+ParseRules::strcasestr(const char *s1, const char *s2)
+{
+  int i1;
+
+  size_t s2_len = strlen(s2);
+
+  for (i1 = 0; s1[i1] != '\0'; i1++)
+    if (ink_tolower(s1[i1]) == ink_tolower(s2[0]))
+      if (strncasecmp_eow(&s1[i1], &s2[0], (int) s2_len))
+        return (&s1[i1]);
+
+  return (0);
+}
+
+inline const char *
+ParseRules::memchr(const char *s, char c, int max_length)
+{
+  for (int i = 0; i < max_length; i++)
+    if (s[i] == c)
+      return (&s[i]);
+  return (0);
+}
+
+inline const char *
+ParseRules::strchr(const char *s, char c)
+{
+  for (int i = 0; s[i] != '\0'; i++)
+    if (s[i] == c)
+      return (&s[i]);
+  return (0);
+}
+
+static inline int
+ink_get_hex(char c)
+{
+  if (ParseRules::is_digit(c))
+    return (int) (c - '0');
+  c = ParseRules::ink_tolower(c);
+  return (int) ((c - 'a') + 10);
+}
+
+int64_t ink_atoi64(const char *);
+uint64_t ink_atoui64(const char *);
+int64_t ink_atoi64(const char *, int);
+
+
+static inline int
+ink_atoi(const char *str)
+{
+  int64_t val = ink_atoi64(str);
+
+  if (val > INT_MAX)
+    return INT_MAX;
+  else if (val < INT_MIN)
+    return INT_MIN;
+  else
+    return static_cast<int>(val);
+}
+
+static inline int
+ink_atoi(const char *str, int len)
+{
+  int64_t val = ink_atoi64(str, len);
+
+  if (val > INT_MAX)
+    return INT_MAX;
+  else if (val < INT_MIN)
+    return INT_MIN;
+  else
+    return static_cast<int>(val);
+}
+
+static inline unsigned int
+ink_atoui(const char *str)
+{
+  uint64_t val = ink_atoui64(str);
+
+  if (val > INT_MAX)
+    return INT_MAX;
+  else
+    return static_cast<int>(val);
+}
+
+#endif /* #if !defined (_ParseRules_h_) */
diff --git a/lib/ts/Ptr.h b/lib/ts/Ptr.h
new file mode 100644
index 00000000..7cea36c0
--- /dev/null
+++ b/lib/ts/Ptr.h
@@ -0,0 +1,430 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*************************** -*- Mod: C++ -*- ******************************
+
+   Atmic and non-atomic smart pointers.
+
+   Note: it would have been nice to have one 'Ptr' class, but the
+   templating system on some compilers is so broken that it cannot
+   correctly compile Ptr without downcasting the m_ptr object to
+   a RefCountObj.
+
+
+ ****************************************************************************/
+#if !defined (_Ptr_h_)
+#define _Ptr_h_
+
+#include "ink_atomic.h"
+
+////////////////////////////////////////////////////////////////////////
+//
+// class NonAtomicRefCountObj
+// prototypical class for reference counting
+//
+////////////////////////////////////////////////////////////////////////
+class NonAtomicRefCountObj
+{
+public:
+  NonAtomicRefCountObj():m_refcount(0)
+  {
+    return;
+  }
+  NonAtomicRefCountObj(const NonAtomicRefCountObj & s):m_refcount(0)
+  {
+    (void) s;
+    return;
+  }
+  virtual ~ NonAtomicRefCountObj() {
+    return;
+  }
+  NonAtomicRefCountObj & operator =(const NonAtomicRefCountObj & s) {
+    (void) s;
+    return (*this);
+  }
+
+  int refcount_inc();
+  int refcount_dec();
+  int refcount() const;
+
+  virtual void free()
+  {
+    delete this;
+  }
+
+  volatile int m_refcount;
+};
+
+inline int
+NonAtomicRefCountObj::refcount_inc()
+{
+  return ++m_refcount;
+}
+
+#define NONATOMIC_REF_COUNT_OBJ_REFCOUNT_INC(_x) (_x)->refcount_inc()
+
+inline int
+NonAtomicRefCountObj::refcount_dec()
+{
+  return --m_refcount;
+}
+
+#define NONATOMIC_REF_COUNT_OBJ_REFCOUNT_DEC(_x) (_x)->refcount_dec()
+
+inline int
+NonAtomicRefCountObj::refcount() const
+{
+  return m_refcount;
+}
+
+
+
+////////////////////////////////////////////////////////////////////////
+//
+// class NonAtomicPtr
+//
+////////////////////////////////////////////////////////////////////////
+template<class T> class NonAtomicPtr {
+public:
+  explicit NonAtomicPtr(T * ptr = 0);
+  NonAtomicPtr(const NonAtomicPtr<T> &);
+  ~NonAtomicPtr();
+
+  NonAtomicPtr<T> &operator =(const NonAtomicPtr<T> &);
+  NonAtomicPtr<T> &operator =(T *);
+
+  void clear();
+
+  operator  T *() const
+  {
+    return (m_ptr);
+  }
+  T *operator ->() const
+  {
+    return (m_ptr);
+  }
+  T & operator *() const
+  {
+    return (*m_ptr);
+  }
+
+  int operator ==(const T * p)
+  {
+    return (m_ptr == p);
+  }
+  int operator ==(const NonAtomicPtr<T> &p)
+  {
+    return (m_ptr == p.m_ptr);
+  }
+  int operator !=(const T * p)
+  {
+    return (m_ptr != p);
+  }
+  int operator !=(const NonAtomicPtr<T> &p)
+  {
+    return (m_ptr != p.m_ptr);
+  }
+
+  NonAtomicRefCountObj *_ptr()
+  {
+    return (NonAtomicRefCountObj *) m_ptr;
+  }
+
+  T *m_ptr;
+};
+
+template <typename T>
+NonAtomicPtr<T> make_nonatomic_ptr(T * p) {
+  return NonAtomicPtr<T>(p);
+}
+
+////////////////////////////////////////////////////////////////////////
+//
+// inline functions definitions
+//
+////////////////////////////////////////////////////////////////////////
+template<class T> inline NonAtomicPtr<T>::NonAtomicPtr(T * ptr /* = 0 */ )
+:
+m_ptr(ptr)
+{
+  if (m_ptr)
+    _ptr()->refcount_inc();
+  return;
+}
+
+template<class T> inline NonAtomicPtr<T>::NonAtomicPtr(const NonAtomicPtr<T> &src)
+:
+m_ptr(src.m_ptr)
+{
+  if (m_ptr)
+    _ptr()->refcount_inc();
+  return;
+}
+
+template<class T> inline NonAtomicPtr<T>::~NonAtomicPtr()
+{
+  if ((m_ptr) && _ptr()->refcount_dec() == 0) {
+    _ptr()->free();
+  }
+  return;
+}
+
+template<class T> inline NonAtomicPtr<T> &NonAtomicPtr<T>::operator =(T * p)
+{
+  T *temp_ptr = m_ptr;
+
+  if (m_ptr == p)
+    return (*this);
+
+  m_ptr = p;
+
+  if (m_ptr != 0) {
+    _ptr()->refcount_inc();
+  }
+
+  if ((temp_ptr) && ((NonAtomicRefCountObj *) temp_ptr)->refcount_dec() == 0) {
+    ((NonAtomicRefCountObj *) temp_ptr)->free();
+  }
+
+  return (*this);
+}
+template<class T> inline void NonAtomicPtr<T>::clear()
+{
+  if (m_ptr) {
+    if (!((NonAtomicRefCountObj *) m_ptr)->refcount_dec())
+      ((NonAtomicRefCountObj *) m_ptr)->free();
+    m_ptr = NULL;
+  }
+}
+template<class T> inline NonAtomicPtr<T> &NonAtomicPtr<T>::operator =(const NonAtomicPtr<T> &src)
+{
+  return (operator =(src.m_ptr));
+}
+
+
+////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////
+//////              ATOMIC VERSIONS
+////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////
+
+struct ForceVFPTToTop
+{
+  virtual ~ ForceVFPTToTop()
+  {
+  }
+};
+
+
+////////////////////////////////////////////////////////////////////////
+//
+// class RefCountObj
+// prototypical class for reference counting
+//
+////////////////////////////////////////////////////////////////////////
+class RefCountObj: public ForceVFPTToTop
+{
+public:
+  RefCountObj():m_refcount(0)
+  {
+  }
+  RefCountObj(const RefCountObj & s):m_refcount(0)
+  {
+    (void) s;
+    return;
+  }
+  virtual ~ RefCountObj() {
+  }
+  RefCountObj & operator =(const RefCountObj & s) {
+    (void) s;
+    return (*this);
+  }
+
+  int refcount_inc();
+  int refcount_dec();
+  int refcount() const;
+
+  virtual void free()
+  {
+    delete this;
+  }
+
+  volatile int m_refcount;
+};
+
+// Increment the reference count, returning the new count.
+inline int
+RefCountObj::refcount_inc()
+{
+  return ink_atomic_increment((int *) &m_refcount, 1) + 1;
+}
+
+#define REF_COUNT_OBJ_REFCOUNT_INC(_x) (_x)->refcount_inc()
+
+// Decrement the reference count, returning the new count.
+inline int
+RefCountObj::refcount_dec()
+{
+  return ink_atomic_increment((int *) &m_refcount, -1) - 1;
+}
+
+#define REF_COUNT_OBJ_REFCOUNT_DEC(_x) (_x)->refcount_dec()
+
+inline int
+RefCountObj::refcount() const
+{
+  return m_refcount;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+//
+// class Ptr
+//
+////////////////////////////////////////////////////////////////////////
+template<class T> class Ptr {
+public:
+  explicit Ptr(T * p = 0);
+  Ptr(const Ptr<T> &);
+  ~Ptr();
+
+  void clear();
+  Ptr<T> &operator =(const Ptr<T> &);
+  Ptr<T> &operator =(T *);
+
+  T * to_ptr() {
+    if (m_ptr && m_ptr->m_refcount == 1) {
+      T * ptr = m_ptr;
+      m_ptr = 0;
+      ptr->m_refcount = 0;
+      return ptr;
+    }
+    return 0;
+  }
+  operator  T *() const
+  {
+    return (m_ptr);
+  }
+  T *operator ->() const
+  {
+    return (m_ptr);
+  }
+  T & operator *() const
+  {
+    return (*m_ptr);
+  }
+
+  int operator ==(const T * p)
+  {
+    return (m_ptr == p);
+  }
+  int operator ==(const Ptr<T> &p)
+  {
+    return (m_ptr == p.m_ptr);
+  }
+  int operator !=(const T * p)
+  {
+    return (m_ptr != p);
+  }
+  int operator !=(const Ptr<T> &p)
+  {
+    return (m_ptr != p.m_ptr);
+  }
+
+  RefCountObj *_ptr()
+  {
+    return (RefCountObj *) m_ptr;
+  }
+
+  T *m_ptr;
+};
+
+template <typename T>
+Ptr<T> make_ptr(T * p) {
+  return Ptr<T>(p);
+}
+
+////////////////////////////////////////////////////////////////////////
+//
+// inline functions definitions
+//
+////////////////////////////////////////////////////////////////////////
+template<class T> inline Ptr<T>::Ptr(T * ptr /* = 0 */ )
+:
+m_ptr(ptr)
+{
+  if (m_ptr)
+    _ptr()->refcount_inc();
+  return;
+}
+
+template<class T> inline Ptr<T>::Ptr(const Ptr<T> &src)
+:
+m_ptr(src.m_ptr)
+{
+  if (m_ptr)
+    _ptr()->refcount_inc();
+  return;
+}
+
+template<class T> inline Ptr<T>::~Ptr()
+{
+  if ((m_ptr) && _ptr()->refcount_dec() == 0) {
+    _ptr()->free();
+  }
+  return;
+}
+
+template<class T> inline Ptr<T> &Ptr<T>::operator =(T * p)
+{
+  T *temp_ptr = m_ptr;
+
+  if (m_ptr == p)
+    return (*this);
+
+  m_ptr = p;
+
+  if (m_ptr != 0) {
+    _ptr()->refcount_inc();
+  }
+
+  if ((temp_ptr) && ((RefCountObj *) temp_ptr)->refcount_dec() == 0) {
+    ((RefCountObj *) temp_ptr)->free();
+  }
+
+  return (*this);
+}
+template<class T> inline void Ptr<T>::clear()
+{
+  if (m_ptr) {
+    if (!((RefCountObj *) m_ptr)->refcount_dec())
+      ((RefCountObj *) m_ptr)->free();
+    m_ptr = NULL;
+  }
+}
+template<class T> inline Ptr<T> &Ptr<T>::operator =(const Ptr<T> &src)
+{
+  return (operator =(src.m_ptr));
+}
+
+#endif
diff --git a/lib/ts/RawHashTable.cc b/lib/ts/RawHashTable.cc
new file mode 100644
index 00000000..8c86e79f
--- /dev/null
+++ b/lib/ts/RawHashTable.cc
@@ -0,0 +1,32 @@
+/** @file
+
+  C++ wrapper around libts hash tables
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  These C++ RawHashTables are a C++ wrapper around libts hash tables.
+  They expose an interface very analogous to ink_hash_table, for better
+  or for worse.  See HashTable for a more C++-oriented hash table.
+
+*/
+
+#include "RawHashTable.h"
+
diff --git a/lib/ts/RawHashTable.h b/lib/ts/RawHashTable.h
new file mode 100644
index 00000000..529f7248
--- /dev/null
+++ b/lib/ts/RawHashTable.h
@@ -0,0 +1,400 @@
+/** @file
+
+  C++ wrapper around libts hash tables
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  These C++ RawHashTables are a C++ wrapper around libts hash tables.
+  They expose an interface very analogous to ink_hash_table, for better
+  or for worse. See HashTable for a more C++-oriented hash table.
+
+*/
+
+#ifndef _RawHashTable_h_
+#define	_RawHashTable_h_
+
+#include "libts.h"
+
+#include "ink_apidefs.h"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Constants and Type Definitions
+//
+//////////////////////////////////////////////////////////////////////////////
+
+typedef enum
+{
+  RawHashTable_KeyType_String = InkHashTableKeyType_String,
+  RawHashTable_KeyType_Word = InkHashTableKeyType_Word
+} RawHashTable_KeyType;
+
+typedef InkHashTableKey RawHashTable_Key;
+typedef InkHashTableValue RawHashTable_Value;
+typedef InkHashTableEntry RawHashTable_Binding;
+typedef InkHashTableIteratorState RawHashTable_IteratorState;
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      The RawHashTable Class
+//
+//////////////////////////////////////////////////////////////////////////////
+
+class RawHashTable
+{
+private:
+  InkHashTable * ht;
+  RawHashTable_KeyType key_type;
+  bool deallocate_values_on_destruct;
+
+public:
+    inkcoreapi RawHashTable(RawHashTable_KeyType key_type, bool deallocate_values_on_destruct = false);
+    virtual ~ RawHashTable();
+
+  //
+  // these are the simplest accessor functions
+  //
+
+  bool getValue(RawHashTable_Key key, RawHashTable_Value * value_ptr);
+  void setValue(RawHashTable_Key key, RawHashTable_Value value_ptr);
+  bool isBound(RawHashTable_Key key);
+  bool unbindKey(RawHashTable_Key key);
+  void replaceString(char *key, char *string);
+
+  //
+  // these functions allow you to manipulate the (key,value) bindings directly
+  //
+
+  RawHashTable_Binding *getCurrentBinding(RawHashTable_Key key);
+  RawHashTable_Binding *getOrCreateBinding(RawHashTable_Key key, bool * was_new = NULL);
+
+  void setBindingValue(RawHashTable_Binding * binding, RawHashTable_Value value);
+  RawHashTable_Key getKeyFromBinding(RawHashTable_Binding * binding);
+  RawHashTable_Value getValueFromBinding(RawHashTable_Binding * binding);
+
+  //
+  // these functions allow you to iterate through RawHashTable bindings
+  //
+
+  RawHashTable_Binding *firstBinding(RawHashTable_IteratorState * state_ptr);
+  RawHashTable_Binding *nextBinding(RawHashTable_IteratorState * state_ptr);
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Inline Methods
+//
+//////////////////////////////////////////////////////////////////////////////
+
+/**
+  This routine gets the value associated with key. If the key has a
+  binding, the value is stored through value_ptr and true is returned. If
+  the key DOES NOT have a binding, false is returned.
+
+*/
+inline bool
+RawHashTable::getValue(RawHashTable_Key key, RawHashTable_Value * value_ptr)
+{
+  int is_bound;
+
+  is_bound = ink_hash_table_lookup(ht, (InkHashTableKey) key, (InkHashTableValue *) value_ptr);
+  return (is_bound ? true : false);
+}
+
+/**
+  This routine sets the value associated with key to the value. If
+  a value is previously bound to the key, the previous value is left
+  dangling. The caller is responsible to freeing any previous binding
+  values needing freeing before calling setValue.
+
+  If the key has a binding, the value is stored through value_ptr and
+  true is returned. If the key DOES NOT have a binding, false is returned.
+
+*/
+inline void
+RawHashTable::setValue(RawHashTable_Key key, RawHashTable_Value value)
+{
+  ink_hash_table_insert(ht, (InkHashTableKey) key, (InkHashTableValue) value);
+}
+
+/**
+  This routine sets the value associated with key to the value pointed to
+  by value_ptr. If a value is previously bound to the key, the previous
+  value is left dangling. The caller is responsible to freeing any
+  previous value before setValue.
+
+  If the key has a binding, the value is stored through value_ptr and
+  true is returned. If the key DOES NOT have a binding, false is returned.
+
+*/
+inline bool
+RawHashTable::isBound(RawHashTable_Key key)
+{
+  int status = ink_hash_table_isbound(ht, (InkHashTableKey) key);
+  return (status ? true : false);
+}
+
+/**
+  This routine removes any association for key from the hash table. If
+  data was bound to key, the binding will be deleted, but the value will
+  not be deallocated. The caller is responsible to freeing any previous
+  value before unbindKey.
+
+  @return true if the key was previously bound, false otherwise.
+
+*/
+inline bool
+RawHashTable::unbindKey(RawHashTable_Key key)
+{
+  int status;
+
+  status = ink_hash_table_delete(ht, (InkHashTableKey) key);
+  return (status ? true : false);
+}
+
+/**
+  This rather specialized routine binds a malloc-allocated string value
+  to the key, freeing any previous value. The key must be a string,
+  and the hash table must have been constructed as having key_type
+  RawHashTable_KeyType_String.
+
+*/
+inline void
+RawHashTable::replaceString(char *key, char *string)
+{
+//    if (key_type != RawHashTable_KeyType_String)
+//    {
+//      throw BadKeyType();
+//    }
+
+  ink_hash_table_replace_string(ht, key, string);
+}
+
+/**
+  This function looks up a binding for key in the hash table, and returns
+  a pointer to the binding data structure directly inside the hash table,
+  or NULL if there is no binding.
+
+*/
+inline RawHashTable_Binding *
+RawHashTable::getCurrentBinding(RawHashTable_Key key)
+{
+  InkHashTableEntry *he_ptr;
+
+  he_ptr = ink_hash_table_lookup_entry(ht, (InkHashTableKey) key);
+  return ((RawHashTable_Binding *) he_ptr);
+}
+
+/**
+  This function looks up a binding for key in the hash table, creates
+  a binding if one doesn't exist, and returns a pointer to the binding
+  data structure directly inside the hash table.
+
+  If was_new is not NULL, true is stored through was_new. If no binding
+  previously existed, false is stored through was_new if a binding
+  previously existed.
+
+*/
+inline RawHashTable_Binding *
+RawHashTable::getOrCreateBinding(RawHashTable_Key key, bool * was_new)
+{
+  int _was_new;
+  InkHashTableEntry *he_ptr;
+
+  he_ptr = ink_hash_table_get_entry(ht, (InkHashTableKey) key, &_was_new);
+  *was_new = (_was_new ? true : false);
+  return ((RawHashTable_Binding *) he_ptr);
+}
+
+/**
+  This function looks up a binding for key in the hash table, creates
+  a binding if one doesn't exist, and returns a pointer to the binding
+  data structure directly inside the hash table.
+
+  If was_new is not NULL, true is stored through was_new. If no binding
+  previously existed, false is stored through was_new if a binding
+  previously existed.
+
+*/
+inline void
+RawHashTable::setBindingValue(RawHashTable_Binding * binding, RawHashTable_Value value)
+{
+  ink_hash_table_set_entry(ht, (InkHashTableEntry *) binding, (InkHashTableValue) value);
+}
+
+/**
+  This function takes a binding and extracts the key.
+
+*/
+inline RawHashTable_Key
+RawHashTable::getKeyFromBinding(RawHashTable_Binding * binding)
+{
+  InkHashTableKey ht_key;
+
+  ht_key = ink_hash_table_entry_key(ht, (InkHashTableEntry *) binding);
+  return ((RawHashTable_Key) ht_key);
+}
+
+/**
+  This function takes a binding and extracts the value.
+
+*/
+inline RawHashTable_Value
+RawHashTable::getValueFromBinding(RawHashTable_Binding * binding)
+{
+  InkHashTableValue ht_value;
+
+  ht_value = ink_hash_table_entry_value(ht, (InkHashTableEntry *) binding);
+  return ((RawHashTable_Value) ht_value);
+}
+
+/**
+  This function takes a hash table, initializes an interator data
+  structure to point to the first binding in the hash table, and returns
+  the first binding, or NULL if there are none.
+
+*/
+inline RawHashTable_Binding *
+RawHashTable::firstBinding(RawHashTable_IteratorState * state_ptr)
+{
+  InkHashTableEntry *he_ptr;
+
+  he_ptr = ink_hash_table_iterator_first(ht, (InkHashTableIteratorState *) state_ptr);
+  return ((RawHashTable_Binding *) he_ptr);
+}
+
+inline
+RawHashTable::RawHashTable(RawHashTable_KeyType akey_type, bool adeallocate_values_on_destruct)
+{
+  RawHashTable::key_type = akey_type;
+  RawHashTable::deallocate_values_on_destruct = adeallocate_values_on_destruct;
+  ht = ink_hash_table_create((InkHashTableKeyType) key_type);
+}
+
+inline
+RawHashTable::~
+RawHashTable()
+{
+  if (deallocate_values_on_destruct)
+    ink_hash_table_destroy_and_free_values(ht);
+  else
+    ink_hash_table_destroy(ht);
+}
+
+/**
+  This function takes a hash table and a pointer to iterator state,
+  and advances to the next binding in the hash table, if any. If there
+  in a next binding, a pointer to the binding is returned, else NULL.
+
+*/
+inline RawHashTable_Binding *
+RawHashTable::nextBinding(RawHashTable_IteratorState * state_ptr)
+{
+  InkHashTableEntry *he_ptr;
+
+  he_ptr = ink_hash_table_iterator_next(ht, (InkHashTableIteratorState *) state_ptr);
+  return ((RawHashTable_Binding *) he_ptr);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      The RawHashTableIter Class
+//
+//////////////////////////////////////////////////////////////////////////////
+
+class RawHashTableIter
+{
+public:
+  RawHashTableIter(RawHashTable & ht);
+  ~RawHashTableIter();
+
+  RawHashTable_Value & operator ++();   // get next
+  RawHashTable_Value & operator () () const;    // get current
+  operator  const void *() const;       // is valid
+
+    RawHashTable_Value & value() const; // get current value
+  const char *key() const;      // get current key
+
+
+private:
+    RawHashTable & m_ht;
+  RawHashTable_Binding *m_currentBinding;
+  RawHashTable_IteratorState m_hashIterState;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Inline Methods
+//
+//////////////////////////////////////////////////////////////////////////////
+
+inline RawHashTable_Value &
+RawHashTableIter::operator () ()
+const
+{
+  return (m_currentBinding->clientData);
+}
+
+inline RawHashTable_Value &
+RawHashTableIter::operator ++()
+{
+  m_currentBinding = m_ht.nextBinding(&m_hashIterState);
+  return (m_currentBinding->clientData);
+}
+
+inline
+RawHashTableIter::operator  const void *()
+const
+{
+  return ((m_currentBinding != 0) ? this : 0);
+}
+
+inline
+  RawHashTable_Value &
+RawHashTableIter::value() const
+{
+  return (m_currentBinding->clientData);
+}
+
+inline const char *
+RawHashTableIter::key() const
+{
+  return (m_currentBinding->key.string);
+}
+
+inline
+RawHashTableIter::RawHashTableIter(RawHashTable & ht)
+  :
+m_ht(ht),
+m_currentBinding(0)
+{
+  m_currentBinding = m_ht.firstBinding(&m_hashIterState);
+  return;
+}
+
+inline
+RawHashTableIter::~
+RawHashTableIter()
+{
+  return;
+}
+
+#endif /*_RawHashTable_h_*/
diff --git a/lib/ts/Regex.cc b/lib/ts/Regex.cc
new file mode 100644
index 00000000..b881c312
--- /dev/null
+++ b/lib/ts/Regex.cc
@@ -0,0 +1,147 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "Regex.h"
+
+DFA::~DFA()
+{
+  dfa_pattern * p = _my_patterns;
+  dfa_pattern * t = p;
+  
+  while(p) {
+    if (p->_pe)
+      pcre_free(p->_pe);
+    if (p->_re)
+      pcre_free(p->_re);
+    if(p->_p)
+      ats_free(p->_p);
+    t = p->_next;
+    ats_free(p);
+    p = t;
+  } 
+}
+
+dfa_pattern *
+DFA::build(const char *pattern, REFlags flags)
+{
+  const char *error;
+  int erroffset;
+  dfa_pattern* ret;
+  
+  ret = (dfa_pattern*)ats_malloc(sizeof(dfa_pattern));
+  ret->_p = NULL;
+  
+  if (flags & RE_CASE_INSENSITIVE)
+    ret->_re = pcre_compile(pattern, PCRE_CASELESS|PCRE_ANCHORED, &error, &erroffset, NULL);
+  else 
+    ret->_re = pcre_compile(pattern, PCRE_ANCHORED, &error, &erroffset, NULL);
+  
+  if (error) {
+    ats_free(ret);
+    return NULL;
+  }
+  
+  ret->_pe = pcre_study(ret->_re, 0, &error);
+  
+  if (error) {
+    ats_free(ret);
+    return NULL;
+  }
+  
+  ret->_idx = 0;
+  ret->_p = ats_strndup(pattern, strlen(pattern));
+  ret->_next = NULL;
+  return ret;
+}
+
+int DFA::compile(const char *pattern, REFlags flags) {
+  ink_assert(_my_patterns == NULL);
+  _my_patterns = build(pattern,flags);
+  if (_my_patterns) 
+    return 0;
+  else 
+    return -1;
+}
+
+int
+DFA::compile(const char **patterns, int npatterns, REFlags flags)
+{
+  const char *pattern;
+  dfa_pattern *ret = NULL;
+  dfa_pattern *end = NULL;
+  int i;
+  //char buf[128];
+  
+  for (i = 0; i < npatterns; i++) {
+    pattern = patterns[i];
+    //snprintf(buf,128,"%s",pattern);
+    ret = build(pattern,flags);
+    if (!ret) {
+      continue;
+    }
+    
+    if (!_my_patterns) {
+      _my_patterns = ret;
+      _my_patterns->_next = NULL;
+      _my_patterns->_idx = i;
+    }
+    else { 
+      end = _my_patterns;
+      while( end->_next ) {
+        end = end->_next;
+      }
+      end->_next = ret; //add to end
+      ret->_idx = i;
+    }
+    
+  }
+  
+  return 0;
+}
+
+int
+DFA::match(const char *str) const
+{
+  return match(str,strlen(str));
+}
+
+int
+DFA::match(const char *str, int length) const
+{
+  int rc;
+  int ovector[30];
+  //int wspace[20];
+  dfa_pattern * p = _my_patterns;
+  
+  while(p) {
+    rc = pcre_exec(p->_re, p->_pe, str, length , 0, 0, ovector, 30/*,wspace,20*/);
+    if (rc > 0) {
+      return p->_idx;
+    }
+    p = p->_next;
+  }
+
+  return -1;
+}
+
diff --git a/lib/ts/Regex.h b/lib/ts/Regex.h
new file mode 100644
index 00000000..14c94ac4
--- /dev/null
+++ b/lib/ts/Regex.h
@@ -0,0 +1,67 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __TS_REGEX_H__
+#define __TS_REGEX_H__
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+
+enum REFlags
+{
+  RE_CASE_INSENSITIVE = 1
+};
+
+typedef struct __pat {
+  int _idx;
+  pcre *_re;
+  pcre_extra *_pe;
+  char *_p;
+  __pat * _next;
+} dfa_pattern;
+
+class DFA
+{
+public:
+  DFA():_my_patterns(0) {
+  }
+  
+  ~DFA();
+
+  int compile(const char *pattern, REFlags flags = (REFlags) 0);
+  int compile(const char **patterns, int npatterns, REFlags flags = (REFlags) 0);
+  dfa_pattern * build(const char *pattern, REFlags flags = (REFlags) 0);
+  
+  int match(const char *str) const;
+  int match(const char *str, int length) const;
+
+private:
+  dfa_pattern * _my_patterns;
+};
+
+
+#endif /* __TS_REGEX_H__ */
diff --git a/lib/ts/Regression.cc b/lib/ts/Regression.cc
new file mode 100644
index 00000000..39e7438e
--- /dev/null
+++ b/lib/ts/Regression.cc
@@ -0,0 +1,214 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Regression.cc
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "Regression.h"
+
+static RegressionTest *test = NULL;
+static RegressionTest *exclusive_test = NULL;
+
+RegressionTest *RegressionTest::current = 0;
+int RegressionTest::ran_tests = 0;
+DFA RegressionTest::dfa;
+int regression_level = 0;
+int RegressionTest::final_status = REGRESSION_TEST_PASSED;
+
+char *
+regression_status_string(int status)
+{
+  return (char *) (status == REGRESSION_TEST_NOT_RUN ? "NOT_RUN" :
+                   (status == REGRESSION_TEST_PASSED ? "PASSED" :
+                    (status == REGRESSION_TEST_INPROGRESS ? "INPROGRESS" : "FAILED")));
+}
+
+RegressionTest::RegressionTest(const char *name_arg, TestFunction * function_arg, int aopt)
+{
+  name = name_arg;
+  function = function_arg;
+  status = REGRESSION_TEST_NOT_RUN;
+  printed = 0;
+  opt = aopt;
+
+  if (opt == REGRESSION_OPT_EXCLUSIVE) {
+    if (exclusive_test)
+      this->next = exclusive_test;
+    exclusive_test = this;
+  } else {
+    if (test)
+      this->next = test;
+    test = this;
+  }
+}
+
+static inline int
+start_test(RegressionTest * t)
+{
+  ink_assert(t->status == REGRESSION_TEST_NOT_RUN);
+  t->status = REGRESSION_TEST_INPROGRESS;
+  fprintf(stderr, "REGRESSION TEST %s started\n", t->name);
+  (*t->function) (t, regression_level, &t->status);
+  int tresult = t->status;
+  if (tresult != REGRESSION_TEST_INPROGRESS) {
+    fprintf(stderr, "    REGRESSION_RESULT %s:%*s %s\n", t->name,
+            40 - (int)strlen(t->name), " ", regression_status_string(tresult));
+    t->printed = 1;
+  }
+  return tresult;
+}
+
+int
+RegressionTest::run(char *atest)
+{
+  if (atest)
+    dfa.compile(atest);
+  else
+    dfa.compile(".*");
+  fprintf(stderr, "REGRESSION_TEST initialization begun\n");
+  // start the non exclusive tests
+  for (RegressionTest * t = test; t; t = t->next) {
+    if ((dfa.match(t->name) >= 0)) {
+      int res = start_test(t);
+      if (res == REGRESSION_TEST_FAILED)
+        final_status = REGRESSION_TEST_FAILED;
+    }
+  }
+  current = exclusive_test;
+  return run_some();
+}
+
+int
+RegressionTest::run_some()
+{
+
+  if (current) {
+    if (current->status == REGRESSION_TEST_INPROGRESS)
+      return REGRESSION_TEST_INPROGRESS;
+    else if (current->status != REGRESSION_TEST_NOT_RUN) {
+      if (!current->printed) {
+        current->printed = true;
+        fprintf(stderr, "    REGRESSION_RESULT %s:%*s %s\n", current->name,
+                40 - (int)strlen(current->name), " ", regression_status_string(current->status));
+      }
+      current = current->next;
+    }
+  }
+
+  for (; current; current = current->next) {
+    if ((dfa.match(current->name) >= 0)) {
+      int res = start_test(current);
+      if (res == REGRESSION_TEST_INPROGRESS)
+        return res;
+      if (res == REGRESSION_TEST_FAILED)
+        final_status = REGRESSION_TEST_FAILED;
+    }
+  }
+  return REGRESSION_TEST_INPROGRESS;
+}
+
+int
+RegressionTest::check_status()
+{
+  int status = REGRESSION_TEST_PASSED;
+  if (current) {
+    status = run_some();
+    if (!current)
+      return status;
+  }
+  RegressionTest *t = test;
+  int exclusive = 0;
+
+check_test_list:
+  while (t) {
+    if ((t->status == REGRESSION_TEST_PASSED || t->status == REGRESSION_TEST_FAILED) && !t->printed) {
+      t->printed = true;
+      fprintf(stderr, "    REGRESSION_RESULT %s:%*s %s\n", t->name,
+              40 - (int)strlen(t->name), " ", regression_status_string(t->status));
+    }
+
+    switch (t->status) {
+    case REGRESSION_TEST_FAILED:
+      final_status = REGRESSION_TEST_FAILED;
+      break;
+    case REGRESSION_TEST_INPROGRESS:
+      printf("Regression test(%s) still in progress\n", t->name);
+      status = REGRESSION_TEST_INPROGRESS;
+      break;
+    default:
+      break;
+    }
+    t = t->next;
+  }
+  if (!exclusive) {
+    exclusive = 1;
+    t = exclusive_test;
+    goto check_test_list;
+  }
+
+  return (status == REGRESSION_TEST_INPROGRESS) ? REGRESSION_TEST_INPROGRESS : final_status;
+}
+
+int
+rprintf(RegressionTest *t, const char *format, ...)
+{
+  int l;
+  char buffer[8192];
+
+  snprintf(buffer, sizeof(buffer), "RPRINT %s: ", t->name);
+  fputs(buffer, stderr);
+
+  va_list ap;
+  va_start(ap, format);
+  l = vsnprintf(buffer, sizeof(buffer), format, ap);
+  va_end(ap);
+
+  fputs(buffer, stderr);
+  return (l);
+}
+
+int
+rperf(RegressionTest *t, const char *tag, double val)
+{
+  int l;
+  char format2[8192];
+  l = snprintf(format2, sizeof(format2), "RPERF %s.%s %f\n", t->name, tag, val);
+  fputs(format2, stderr);
+  return (l);
+}
+
+REGRESSION_TEST(Regression) (RegressionTest * t, int atype, int *status) {
+  (void) t;
+  (void) atype;
+  rprintf(t, "regression test\n");
+  rperf(t, "speed", 100.0);
+  if (!test)
+    *status = REGRESSION_TEST_FAILED;
+  else
+    *status = REGRESSION_TEST_PASSED;
+}
diff --git a/lib/ts/Regression.h b/lib/ts/Regression.h
new file mode 100644
index 00000000..1a6486b7
--- /dev/null
+++ b/lib/ts/Regression.h
@@ -0,0 +1,111 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _Regression_h
+#define _Regression_h
+
+#include "libts.h"
+#include "Regex.h"
+
+//   Each module should provide one or more regression tests
+//
+//   An example:
+//
+//   REGRESSION_TEST(Addition)(RegressionTest *t, int atype, int *pstatus) {
+//     if (atype < REGRESSION_TEST_NIGHTLY) { // to expensive to do more than nightly
+//       *pstatus = REGRESSION_TEST_NOT_RUN;
+//       return;
+//     }
+//     if (1 + 1 != 2) {
+//       rprintf(t, "drat, 1+1 isn't 2??");
+//       *pstatus = REGRESSION_TEST_FAILED;
+//     } else
+//       *pstatus = REGRESSION_TEST_PASSED;
+//   }
+
+
+// status values
+#define REGRESSION_TEST_PASSED         1
+#define REGRESSION_TEST_INPROGRESS     0 // initial value
+#define REGRESSION_TEST_FAILED         -1
+#define REGRESSION_TEST_NOT_RUN        -2
+
+// regression types
+#define REGRESSION_TEST_NONE           0
+#define REGRESSION_TEST_QUICK          1
+#define REGRESSION_TEST_NIGHTLY        2
+#define REGRESSION_TEST_EXTENDED       3
+ // use only for testing TS error handling!
+#define REGRESSION_TEST_FATAL          4
+
+// regression options
+#define REGRESSION_OPT_EXCLUSIVE       (1 << 0)
+
+struct RegressionTest;
+
+typedef void TestFunction(RegressionTest * t, int type, int *status);
+
+struct RegressionTest
+{
+  const char *name;
+  TestFunction *function;
+  RegressionTest *next;
+  int status;
+  int printed;
+  int opt;
+
+  RegressionTest(const char *name_arg, TestFunction * function_arg, int aopt);
+
+  static int final_status;
+  static int ran_tests;
+  static DFA dfa;
+  static RegressionTest *current;
+  static int run(char *name = NULL);
+  static int run_some();
+  static int check_status();
+};
+
+#define REGRESSION_TEST(_f) \
+void RegressionTest_##_f(RegressionTest * t, int atype, int *pstatus); \
+RegressionTest regressionTest_##_f(#_f,&RegressionTest_##_f, 0);\
+void RegressionTest_##_f
+
+#define EXCLUSIVE_REGRESSION_TEST(_f) \
+void RegressionTest_##_f(RegressionTest * t, int atype, int *pstatus); \
+RegressionTest regressionTest_##_f(#_f,&RegressionTest_##_f, REGRESSION_OPT_EXCLUSIVE);\
+void RegressionTest_##_f
+
+int rprintf(RegressionTest * t, const char *format, ...);
+int rperf(RegressionTest *t, const char *tag, double val);
+char *regression_status_string(int status);
+
+extern int regression_level;
+
+#define SignalError(_buf, _already)                                     \
+{                                                                       \
+  if(_already == false) pmgmt->signalManager(MGMT_SIGNAL_CONFIG_ERROR, _buf); \
+  _already = true;                                                      \
+  Warning("%s", _buf);                                                  \
+}                                                                       \
+
+#endif /* _Regression_h */
diff --git a/lib/ts/SimpleTokenizer.h b/lib/ts/SimpleTokenizer.h
new file mode 100644
index 00000000..25e8f0f6
--- /dev/null
+++ b/lib/ts/SimpleTokenizer.h
@@ -0,0 +1,291 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _SIMPLE_TOKENIZER_H_
+#define _SIMPLE_TOKENIZER_H_
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+/*-----------------------------------------------------------------------------
+  SimpleTokenizer
+
+  This class provides easy token parsing from an input string. It supports:
+
+  1- ignoring (or not) of null fields
+  2- left whitespace trimming
+  3- right whitespace trimming
+  4- escaping the delimiter character with a user defined escape character
+
+  The class has two constructors, one that defines the input string,
+  and another one that does not. If the latter is used, then the
+  setString method should be used to set the data string.
+
+  Both constructors set the delimiter, the operation mode (which
+  defines bullets 1-3 above), and the escape character.
+
+  The available methods are:
+
+  void setString(char *s)
+  sets the data string to s. The mode specified upon construction of the
+  tokenizer determines whether s is copied or not.
+
+  char *getNext()
+  returns the next token, or NULL if there are no more tokens. This method
+  uses the delimiter specified upon object construction.
+
+  char *getNext(char delimiter)
+  similar to getNext(), but allows the user to change the delimiter (just for
+  this call).
+
+  char *getNext(int count)
+  get the next count tokens as a single token (ignoring the delimiters in
+  between).
+
+  char *getNext(char delimiter, int count)
+  this is similar to getNext(int count) but allows user to specify the
+  delimiter.
+
+  IMPORTANT: the char pointers returned by the SimpleTokenizer are valid
+  ONLY during the lifetime of the object. The copy of the input string
+  is destroyed by the object's destructor.
+
+  char *getRest()
+  returns the rest of the tokens all together. Advances pointer so a
+  subsequent call to getNext returns NULL;
+
+  char *peekAtRestOfString()
+  returns the rest of the input string, but DOES NOT advance pointer so a
+  subsequent call to getNext does return the next token (if there is still
+  one).
+
+  size_t getNumTokensRemaining()
+  returns the number of tokens remaining in the string (using the delimiter
+  specified upon object construction).
+
+  size_t getNumTokensRemaining(char delimiter)
+  similar to the above, but allows the user to change the delimiter (just for
+  this call).
+
+  Note that multiple delimiters are not supported (more than one per call).
+
+  examples:
+
+  SimpleTokenizer tok("one    two\\ and\\ three four:   five : six");
+  tok.getNumTokensRemaining() --> 5     note calculation is done assuming
+                                        space is the delimiter
+  tok.getNext() -> "one"
+  tok.getNext() -> "two and three"
+  tok.getNext(':') -> "four"
+  tok.peekAtRestOfString() -> "   five  : six"
+  tok.getNext(':') -> "five"
+
+  SimpleTokenizer tok(",  with null fields ,,,", ',',
+                      CONSIDER_NULL_FIELDS | KEEP_WHITESPACE);
+  tok.getNext() -> ""
+  tok.getNext() -> "  with null fields "
+  tok.getNumTokensRemaining() -> 3
+
+  ---------------------------------------------------------------------------*/
+
+class SimpleTokenizer
+{
+public:
+
+  // by default, null fields are disregarded, whitespace is trimmed left
+  // and right, and input string is copied (not overwritten)
+  //
+  enum
+  {
+    CONSIDER_NULL_FIELDS = 1,
+    KEEP_WHITESPACE_LEFT = 2,
+    KEEP_WHITESPACE_RIGHT = 4,
+    KEEP_WHITESPACE = KEEP_WHITESPACE_LEFT + KEEP_WHITESPACE_RIGHT,
+    OVERWRITE_INPUT_STRING = 8
+  };
+
+  SimpleTokenizer(char delimiter = ' ', int mode = 0, char escape = '\\')
+    : _data(0), _delimiter(delimiter), _mode(mode), _escape(escape), _start(0), _length(0)
+  {  }
+
+SimpleTokenizer(char *s, char delimiter = ' ', int mode = 0, char escape = '\\')
+  : _data(0), _delimiter(delimiter), _mode(mode), _escape(escape)
+  {
+    setString(s);
+  }
+
+  ~SimpleTokenizer() {
+    _clearData();
+  }
+
+  void setString(char *s)
+  {
+    _clearData();
+
+    _start = 0;
+    _length = strlen(s);
+    _data = (_mode & OVERWRITE_INPUT_STRING ? s : ats_strdup(s));
+
+    // to handle the case where there is a null field at the end of the
+    // input string, we replace the null character at the end of the
+    // string with the delimiter (and consider the string to be one
+    // character larger).
+    //
+    _data[_length++] = _delimiter;
+  };
+  char *getNext(int count = 1) {
+    return _getNext(_delimiter, false, count);
+  };
+  char *getNext(char delimiter, int count = 1) {
+    return _getNext(delimiter, false, count);
+  }
+  char *getRest()
+  {
+    // there can't be more than _length tokens, so we get the rest
+    // of the tokens by requesting _length of them
+    //
+    return _getNext(_delimiter, false, _length);
+  }
+  size_t getNumTokensRemaining()
+  {
+    return _getNumTokensRemaining(_delimiter);
+  };
+  size_t getNumTokensRemaining(char delimiter)
+  {
+    return _getNumTokensRemaining(delimiter);
+  };
+  char *peekAtRestOfString()
+  {
+    _data[_length - 1] = 0;
+    return (_start < _length ? &_data[_start] : &_data[_length - 1]);
+  }
+
+private:
+
+  char *_data;                  // a pointer to the input data itself,
+  // or to a copy of it
+  char _delimiter;              // the token delimiter
+  int _mode;                    // flags that determine the
+  // mode of operation
+  char _escape;                 // the escape character
+  size_t _start;                // pointer to the start of the next
+  // token
+  size_t _length;               // the length of _data
+
+  void _clearData()
+  {
+    if (_data && !(_mode & OVERWRITE_INPUT_STRING)) {
+      ats_free(_data);
+    }
+  }
+
+  char *_getNext(char delimiter, bool countOnly = false, int numTokens = 1) {
+    char *next = NULL;
+
+    if (_start < _length) {
+      // set start
+      //
+      bool hasEsc = false;      // escape character seen
+      while (_start < _length &&
+             ((!(_mode & CONSIDER_NULL_FIELDS) &&
+               (_data[_start] == delimiter &&
+                !(_start &&
+                  (_data[_start - 1] == _escape ? (hasEsc = true) : 0)))) ||
+              (!(_mode & KEEP_WHITESPACE_LEFT) && isspace(_data[_start])))) {
+        ++_start;
+      }
+
+      if (_start < _length)     // data still available
+      {
+        // update the extra delimiter just in case the function
+        // is called with a different delimiter from the previous one
+        //
+        _data[_length - 1] = delimiter;
+
+        next = &_data[_start];
+
+        // set end
+        //
+        size_t end = _start;
+        int delimCount = 0;
+        while (end < _length &&
+               (_data[end] != delimiter ||
+                (end && (_data[end - 1] == _escape ? (hasEsc = true) : 0)) ||
+                ((++delimCount < numTokens) && (end < _length - 1)))) {
+          ++end;
+        }
+
+        _start = end + 1;
+
+        // there can be delimiters at the end if the number of tokens
+        // requested is larger than 1, remove them if the
+        // CONSIDER_NULL_FIELDS flag is not set
+        //
+        if (!(_mode & CONSIDER_NULL_FIELDS)) {
+          while (_data[--end] == delimiter);
+          ++end;
+        }
+
+        if (!(_mode & KEEP_WHITESPACE_RIGHT)) {
+          while (isspace(_data[--end]));
+          ++end;
+        }
+
+        if (!countOnly) {
+          _data[end] = 0;
+
+          // remove escape characters only if the number of
+          // delimiters is one
+          //
+          if (hasEsc && delimCount == 1) {
+            int numEscape = 0, i = 0;
+            while (next[i]) {
+              if (next[i] == _escape) {
+                ++numEscape;
+              } else {
+                next[i - numEscape] = next[i];
+              }
+              ++i;
+            }
+            _data[end - numEscape] = 0;
+          }
+        }
+      }
+    }
+    return next;
+  };
+
+  size_t _getNumTokensRemaining(char delimiter)
+  {
+    size_t startSave = _start;  // save current position
+    size_t count = 0;
+    while (_getNext(delimiter, true)) {
+      ++count;
+    };
+    _start = startSave;
+    return count;
+  };
+};
+
+#endif
diff --git a/lib/ts/TestBox.h b/lib/ts/TestBox.h
new file mode 100644
index 00000000..df31a6e8
--- /dev/null
+++ b/lib/ts/TestBox.h
@@ -0,0 +1,63 @@
+#if ! defined(TS_TEST_BOX_HEADER)
+#define TS_TEST_BOX_HEADER
+
+/** @file
+
+    Regression testing support class.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+# include <ts/Regression.h>
+
+namespace {
+  /** Class to make handling regression tests easier.
+      This holds the important regression test values so they don't have to
+      be passed repeated.
+  */
+  struct TestBox {
+    typedef TestBox self; ///< Self reference type.
+    RegressionTest* _test; ///< The test object.
+    int* _status; ///< Current status pointer.
+
+    /// Construct from @a test object and @a status pointer.
+  TestBox(RegressionTest* test, int* status) : _test(test), _status(status) {}
+    /// Check the result and print a message on failure.
+    bool check(bool result, char const* fmt, ...);
+
+    /// Directly assign status.
+    self& operator = (int status) { *_status = status; return *this; }
+  };
+
+  bool
+    TestBox::check(bool result, char const* fmt, ...) {
+    if (!result) {
+      static size_t const N = 1<<16;
+      char buffer[N]; // just stack, go big.
+      va_list ap;
+      va_start(ap, fmt);
+      vsnprintf(buffer, N, fmt, ap);
+      va_end(ap);
+      rprintf(_test, "%s\n", buffer);
+      *_status = REGRESSION_TEST_FAILED;
+    }
+    return result;
+  }
+}
+#endif // TS_TEST_BOX_HEADER
diff --git a/lib/ts/TestHttpHeader.cc b/lib/ts/TestHttpHeader.cc
new file mode 100644
index 00000000..e722d77e
--- /dev/null
+++ b/lib/ts/TestHttpHeader.cc
@@ -0,0 +1,214 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*************************** -*- Mod: C++ -*- ******************************
+
+   TestHeaderTokenizer.cc --
+   Created On      : Mon Jan 20 11:48:10 1997
+
+
+ ****************************************************************************/
+#include "HttpHeaderTokenizer.h"
+#include "ink_assert.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <ctype.h>
+#include <memory.h>
+#include <assert.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <libgen.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <time.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+
+static void
+add_field(HttpHeader * h, const char *name, const char *value)
+{
+  h->m_header_fields.set_raw_header_field(name, value);
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  test_add_fields()
+//
+/////////////////////////////////////////////////////////////
+static void
+test_add_fields(HttpHeader * h)
+{
+  char long_accept_header[2048];
+  memset(long_accept_header, 'B', sizeof(long_accept_header));
+  long_accept_header[sizeof(long_accept_header) - 1] = '\0';
+  add_field(h, "Accept", long_accept_header);
+  add_field(h, "Accept", "image/gif");
+  add_field(h, "Accept", "image/x-xbitmap");
+  add_field(h, "Accept", "image/jpeg");
+  add_field(h, "Accept", "image/pjpeg");
+  add_field(h, "Accept", "*/*");
+  add_field(h, "Set-Cookie", "ABCDEFGHIJKLMNOPQRSTUVWXYZ");
+  add_field(h, "Set-Cookie", "1234567890987654321");
+  return;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  test_hacked_http_header_field()
+//
+/////////////////////////////////////////////////////////////
+static void
+test_hacked_http_header_field()
+{
+  HttpHackedMultiValueRawHeaderField f;
+
+#define ADD_FIELD(s) f.add(s, sizeof(s))
+  ADD_FIELD("image/gif");
+  ADD_FIELD("image/x-xbitmap");
+  ADD_FIELD("image/jpeg");
+  ADD_FIELD("image/pjpeg");
+  ADD_FIELD("*/*");
+#undef ADD_FIELD
+
+  int count = f.get_count();
+  cout << "count = " << count << endl;
+  int length = 0;
+  for (int i = 0; i < count; i++) {
+    cout << "Accept: " << f.get(i, &length) << endl;
+    cout << "(length = " << length << ")" << endl;
+  }
+  return;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  test_url_parse()
+//
+/////////////////////////////////////////////////////////////
+void
+test_url_parse(const char *url_string)
+{
+  URL url(url_string, strlen(url_string));
+  char buf[4096];
+
+  url.dump(buf, sizeof(buf));
+
+  cout << buf << endl;
+
+  return;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  test_url()
+//
+/////////////////////////////////////////////////////////////
+void
+test_url()
+{
+  test_url_parse("http://charm.example.com  ");
+  test_url_parse
+    ("http://webchat16.wbs.net:6666?private=herbalessences&color=4&volume=0&tagline=&picture=&home_page=hi@there.&ignore=edheldinruth+taz0069+speezman&back=&Room=Hot_Tub&handle=cagou67&mu=893e159ef7fe0ddb022c655cc1c30abd33d4ae6d90d22f8a&last_read_para=&npo=&fsection=input&chatmode=push&reqtype=input&InputText=Sweetie%2C+do+you+have+time+to+go+to+a+private+room..if+not+I%27m+just+going+to+have+to+change+to+normal+mode...let+me+know%3F%3F/");
+
+  return;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  test_header_tokenizer()
+//
+// message_type HTTP_MESSAGE_TYPE_REQUEST or HTTP_MESSAGE_TYPE_RESPONSE
+/////////////////////////////////////////////////////////////
+void
+test_header_tokenizer_run(const char *buf, HttpMessageType_t message_type)
+{
+  HttpHeaderTokenizer tokenizer;
+  HttpHeader header;
+  int bytes_used;
+
+  tokenizer.start(&header, message_type, false);
+
+  tokenizer.run(buf, strlen(buf), true, &bytes_used);
+
+  cout << header << endl;
+
+  return;
+}
+
+void
+test_header_tokenizer()
+{
+  test_header_tokenizer_run
+    ("GET http://webchat16.wbs.net:6666?private=herbalessences&color=4&volume=0&tagline=&picture=&home_page=hi@there.&ignore=edheldinruth+taz0069+speezman&back=&Room=Hot_Tub&handle=cagou67&mu=893e159ef7fe0ddb022c655cc1c30abd33d4ae6d90d22f8a&last_read_para=&npo=&fsection=input&chatmode=push&reqtype=input&InputText=Sweetie%2C+do+you+have+time+to+go+to+a+private+room..if+not+I%27m+just+going+to+have+to+change+to+normal+mode...let+me+know%3F%3F/ HTTP/1.0\r\n",
+     HTTP_MESSAGE_TYPE_REQUEST);
+
+  return;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  TestHttpHeader()
+//
+/////////////////////////////////////////////////////////////
+void
+TestHttpHeader()
+{
+  HttpHeader h;
+  h.m_message_type = HTTP_MESSAGE_TYPE_REQUEST;
+  h.m_method = HTTP_METHOD_GET;
+  h.m_version = HttpVersion(1, 0);
+
+  test_add_fields(&h);
+
+  cout << h << endl;
+
+  cout << "concatenated accept" << endl;
+  char accept_buf[4000];
+  h.m_header_fields.get_comma_separated_accept_value(accept_buf, sizeof(accept_buf));
+  cout << accept_buf << endl;
+
+  int l;
+  cout << "first accept" << endl;
+  cout << h.m_header_fields.m_accept.get(0, &l) << endl;
+
+
+  char buf[4096];
+  int marshal_length = h.marshal(buf, sizeof(buf));
+
+  HttpHeader h1;
+  h1.unmarshal(buf, marshal_length);
+
+  cout << "unmarshalled: " << endl;
+  cout << h1 << endl;
+
+  cout << "test url parser:" << endl;
+  test_url();
+
+  cout << "test_header_tokenizer:" << endl;
+  test_header_tokenizer();
+
+  return;
+}
diff --git a/lib/ts/TextBuffer.cc b/lib/ts/TextBuffer.cc
new file mode 100644
index 00000000..aeb29505
--- /dev/null
+++ b/lib/ts/TextBuffer.cc
@@ -0,0 +1,214 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "TextBuffer.h"
+
+/****************************************************************************
+ *
+ *  TextBuffer.cc - A self-expanding buffer, primarly meant for strings
+ *
+ *
+ *
+ ****************************************************************************/
+
+textBuffer::textBuffer(int size)
+{
+  bufferStart = NULL;
+  nextAdd = NULL;
+  currentSize = spaceLeft = 0;
+  if (size > 0) {
+
+    // Insitute a minimum size
+    if (size < 1024) {
+      size = 1024;
+    }
+
+    bufferStart = (char *)ats_malloc(size);
+    nextAdd = bufferStart;
+    currentSize = size;
+    spaceLeft = size - 1;     // Leave room for a terminator;
+    nextAdd[0] = '\0';
+  }
+}
+
+textBuffer::~textBuffer()
+{
+  ats_free(bufferStart);
+}
+
+// void textBuffer::reUse()
+//
+//   Sets the text buffer for reuse by repositioning the
+//     ptrs to beginning of buffer.  The buffer space is
+//     reused
+void
+textBuffer::reUse()
+{
+  if (bufferStart != NULL) {
+    nextAdd = bufferStart;
+    spaceLeft = currentSize - 1;
+    nextAdd[0] = '\0';
+  }
+}
+
+// int textBuffer::copyFrom(void*,int num_bytes)
+//
+//
+//  Copy N bytes (determined by num_bytes) on to the
+//  end of the buffer.
+//
+//  Returns the number of bytes copies or
+//  -1 if there was insufficient memory
+int
+textBuffer::copyFrom(const void *source, int num_bytes)
+{
+
+  // Get more space if necessary
+  if (spaceLeft < num_bytes) {
+    if (enlargeBuffer(num_bytes) == -1) {
+      return -1;
+    }
+  }
+
+  memcpy(nextAdd, source, num_bytes);
+  spaceLeft -= num_bytes;
+
+  nextAdd += num_bytes;
+  nextAdd[0] = '\0';
+
+  return num_bytes;
+}
+
+//  textBuffer::enlargeBuffer(int n)
+//
+//  Enlarge the buffer so at least at N
+//    bytes are free in the buffer.
+//
+//  Always enlarges by a power of two.
+//
+//  Returns -1 if insufficient memory,
+//    zero otherwise
+int
+textBuffer::enlargeBuffer(int N)
+{
+  int addedSize = currentSize;
+  int newSize = currentSize * 2;
+  char *newSpace;
+
+  if (spaceLeft < N) {
+
+    while (addedSize < N) {
+      addedSize += newSize;
+      newSize *= 2;
+    }
+
+    newSpace = (char *)ats_realloc(bufferStart, newSize);
+    if (newSpace != NULL) {
+      nextAdd = newSpace + (unsigned int) (nextAdd - bufferStart);
+      bufferStart = newSpace;
+      spaceLeft += addedSize;
+      currentSize = newSize;
+    } else {
+      // Out of Memory, Sigh
+      return -1;
+    }
+  }
+
+  return 0;
+}
+
+// int textBuffer::rawReadFromFile
+//
+// - Issues a single read command on the file descriptor or handle
+//   passed in and reads in raw data (not assumed to be text, no
+//   string terminators added).
+// - Cannot read from file descriptor on win32 because the win32
+//   read() function replaces CR-LF with LF if the file is not
+//   opened in binary mode.
+int
+textBuffer::rawReadFromFile(int fd)
+{
+  int readSize;
+
+  // Check to see if we have got a resonable amount of space left in our
+  //   buffer, if not try to get somemore
+  if (spaceLeft < 4096) {
+    if (enlargeBuffer(4096) == -1) {
+      return -1;
+    }
+  }
+
+  readSize = read(fd, nextAdd, spaceLeft - 1);
+
+  if (readSize == 0) {          //EOF
+    return 0;
+  } else if (readSize < 0) {
+    // Error on read
+    return readSize;
+  } else {
+    nextAdd = nextAdd + readSize;
+    spaceLeft -= readSize;
+    return readSize;
+  }
+}
+
+// int textBuffer::readFromFD(int fd)
+//
+// Issues a single read command on the file
+// descritor passed in.  Attempts to read a minimum of
+// 512 bytes from file descriptor passed.
+int
+textBuffer::readFromFD(int fd)
+{
+  int readSize;
+
+  // Check to see if we have got a resonable amount of space left in our
+  //   buffer, if not try to get somemore
+  if (spaceLeft < 512) {
+    if (enlargeBuffer(512) == -1) {
+      return -1;
+    }
+  }
+
+  readSize = read(fd, nextAdd, spaceLeft - 1);
+
+  if (readSize == 0) {
+    // Socket is empty so we are done
+    return 0;
+  } else if (readSize < 0) {
+    // Error on read
+    return readSize;
+  } else {
+    nextAdd = nextAdd + readSize;
+    nextAdd[0] = '\0';
+    spaceLeft -= readSize + 1;
+    return readSize;
+  }
+}
+
+char *
+textBuffer::bufPtr()
+{
+  return bufferStart;
+}
diff --git a/lib/ts/TextBuffer.h b/lib/ts/TextBuffer.h
new file mode 100644
index 00000000..35e729ae
--- /dev/null
+++ b/lib/ts/TextBuffer.h
@@ -0,0 +1,61 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _TEXT_BUFFER
+#define _TEXT_BUFFER
+
+/****************************************************************************
+ *
+ *  TextBuffer.h - A self-expanding buffer, primarly meant for strings
+ *
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_apidefs.h"
+
+class textBuffer
+{
+public:
+  inkcoreapi textBuffer(int size);
+    inkcoreapi ~ textBuffer();
+  int rawReadFromFile(int fd);
+  int readFromFD(int fd);
+  inkcoreapi int copyFrom(const void *, int num_bytes);
+  void reUse();
+  inkcoreapi char *bufPtr();
+  int spaceUsed()
+  {
+    return (int) (nextAdd - bufferStart);
+  };
+private:
+  textBuffer(const textBuffer &);
+  int enlargeBuffer(int N);
+  int currentSize;
+  int spaceLeft;
+  char *bufferStart;
+  char *nextAdd;
+};
+
+#endif
diff --git a/lib/ts/Tokenizer.cc b/lib/ts/Tokenizer.cc
new file mode 100644
index 00000000..459e54e8
--- /dev/null
+++ b/lib/ts/Tokenizer.cc
@@ -0,0 +1,364 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+#include "ink_platform.h"
+#include "Tokenizer.h"
+#include "ink_assert.h"
+#include "ink_memory.h"
+
+/****************************************************************************
+ *
+ *  Tokenizer.cc - A string tokenzier
+ *
+ *
+ *
+ ****************************************************************************/        /* MAGIC_EDITING_TAG */
+
+Tokenizer::Tokenizer(const char *StrOfDelimiters)
+{
+  int length;
+
+  if (StrOfDelimiters == NULL) {
+    strOfDelimit = NULL;
+  } else {
+    length = (int) (strlen(StrOfDelimiters) + 1);
+    strOfDelimit = new char[length];
+    memcpy(strOfDelimit, StrOfDelimiters, length);
+  }
+
+  memset(&start_node, 0, sizeof(tok_node));
+
+  numValidTokens = 0;
+  maxTokens = -1;
+  options = 0;
+
+  add_node = &start_node;
+  add_index = 0;
+}
+
+Tokenizer::~Tokenizer()
+{
+  bool root = true;
+  tok_node *cur = &start_node;;
+  tok_node *next = NULL;
+
+  if (strOfDelimit != NULL) {
+    delete[]strOfDelimit;
+  }
+
+  while (cur != NULL) {
+
+    if (options & COPY_TOKS) {
+      for (int i = 0; i < TOK_NODE_ELEMENTS; i++)
+        ats_free(cur->el[i]);
+    }
+
+    next = cur->next;
+    if (root == false) {
+      ats_free(cur);
+    } else {
+      root = false;
+    }
+    cur = next;
+  }
+}
+
+int
+Tokenizer::Initialize(const char *str)
+{
+  return Initialize((char *) str, COPY_TOKS);
+}
+
+inline int
+Tokenizer::isDelimiter(char c)
+{
+  int i = 0;
+
+  while (strOfDelimit[i] != '\0') {
+    if (c == strOfDelimit[i]) {
+      return 1;
+    }
+    i++;
+  }
+
+  return 0;
+}
+
+int
+Tokenizer::Initialize(char *str, int opt)
+{
+  char *strStart;
+  int priorCharWasDelimit = 1;
+  char *tokStart = NULL;
+  int tok_count = 0;
+  bool max_limit_hit = false;
+
+  // We can't depend on ReUse() being called so just do it
+  //   if the object needs it
+  if (numValidTokens > 0) {
+    ReUse();
+  }
+
+  strStart = str;
+
+  if (!(opt & (COPY_TOKS | SHARE_TOKS))) {
+    opt = opt | COPY_TOKS;
+  }
+  options = opt;
+
+  // Make sure that both options are not set
+  ink_assert(!((opt & COPY_TOKS) && (opt & SHARE_TOKS)));
+
+
+  str = strStart;
+  priorCharWasDelimit = 1;
+
+  tok_count = 0;
+  tokStart = str;
+
+  while (*str != '\0') {
+
+    // Check to see if we've run to maxToken limit
+    if (tok_count + 1 == maxTokens) {
+      max_limit_hit = true;
+      break;
+    }
+    // There two modes for collecting tokens
+    //
+    //  Mode 1: Every delimiter creates a token
+    //          even if some of those tokens
+    //          are zero length
+    //
+    //  Mode2:  Every token has some data
+    //          in it which means we
+    //          to skip past repeated delimiters
+    if (options & ALLOW_EMPTY_TOKS) {
+      if (isDelimiter(*str)) {
+        addToken(tokStart, (int) (str - tokStart));
+        tok_count++;
+        tokStart = str + 1;
+        priorCharWasDelimit = 1;
+      } else {
+        priorCharWasDelimit = 0;
+      }
+      str++;
+    } else {
+      if (isDelimiter(*str)) {
+        if (priorCharWasDelimit == 0) {
+          // This is a word end, so add it
+          addToken(tokStart, (int) (str - tokStart));
+          tok_count++;
+        }
+        priorCharWasDelimit = 1;
+      } else {
+        if (priorCharWasDelimit == 1) {
+          // This is the start of a new token
+          tokStart = str;
+        }
+        priorCharWasDelimit = 0;
+      }
+      str++;
+    }
+  }
+
+  // Check to see if we stoped due to a maxToken limit
+  if (max_limit_hit == true) {
+
+    if (options & ALLOW_EMPTY_TOKS) {
+
+      // Go till either we hit a delimiter or we've
+      //   come to the end of the string, then
+      //   set for copying
+      for (; *str != '\0' && !isDelimiter(*str); str++);
+      priorCharWasDelimit = 0;
+
+    } else {
+
+      // First, skip the delimiters
+      for (; *str != '\0' && isDelimiter(*str); str++);
+
+      // If there are only delimiters remaining, bail and set
+      //   so that we do not add the empty token
+      if (*str == '\0') {
+        priorCharWasDelimit = 1;
+      } else {
+        // There is stuff to copy for the last token
+        tokStart = str;
+        priorCharWasDelimit = 0;
+
+        // Advance until the end of the string
+        for (; *str != '\0'; str++);
+
+        // Now back off all trailing delimiters
+        for (; isDelimiter(*(str - 1)); str--);
+      }
+    }
+  }
+  // Check to see if we got the last token.  We will
+  //  only have gotten it if the string ended with a delimiter
+  if (priorCharWasDelimit == 0) {
+    // We did not get it
+    addToken(tokStart, (int) (str - tokStart));
+    tok_count++;
+  }
+
+  numValidTokens = tok_count;
+  return tok_count;
+}
+
+
+void
+Tokenizer::addToken(char *startAddr, int length)
+{
+  char *add_ptr;
+  if (options & SHARE_TOKS) {
+    startAddr[length] = '\0';
+    add_ptr = startAddr;
+  } else {
+    add_ptr = (char *)ats_malloc(length + 1);
+    memcpy(add_ptr, startAddr, length);
+    add_ptr[length] = '\0';
+  }
+
+  add_node->el[add_index] = add_ptr;
+
+  add_index++;
+
+  // Check to see if we are out of elements after
+  //   adding this one.  If we are change add_node
+  //   to point to next tok_node, creating one
+  //   if there is not a next one
+  if (add_index >= TOK_NODE_ELEMENTS) {
+    if (add_node->next == NULL) {
+      add_node->next = (tok_node *)ats_malloc(sizeof(tok_node));
+      memset(add_node->next, 0, sizeof(tok_node));
+    }
+    add_node = add_node->next;
+    add_index = 0;
+  }
+}
+
+
+const char *
+Tokenizer::operator[] (int index)
+{
+  tok_node *
+    cur_node = &start_node;
+  int
+    cur_start = 0;
+  if (index >= numValidTokens) {
+    return NULL;
+  } else {
+    while (cur_start + TOK_NODE_ELEMENTS <= index) {
+      cur_node = cur_node->next;
+      ink_assert(cur_node != NULL);
+      cur_start += TOK_NODE_ELEMENTS;
+    }
+    return cur_node->el[index % TOK_NODE_ELEMENTS];
+  }
+}
+
+int
+Tokenizer::getNumber()
+{
+  return numValidTokens;
+}
+
+const char *
+Tokenizer::iterFirst(tok_iter_state * state)
+{
+  state->node = &start_node;
+  state->index = -1;
+  return iterNext(state);
+}
+
+const char *
+Tokenizer::iterNext(tok_iter_state * state)
+{
+  tok_node *node = state->node;;
+  int index = state->index;
+
+  index++;
+  if (index >= TOK_NODE_ELEMENTS) {
+    node = node->next;
+    if (node == NULL) {
+      return NULL;
+    } else {
+      index = 0;
+    }
+  }
+
+  if (node->el[index] != NULL) {
+    state->node = node;
+    state->index = index;
+    return node->el[index];
+  } else {
+    return NULL;
+  }
+}
+
+
+
+void
+Tokenizer::Print()
+{
+  tok_node *cur_node = &start_node;
+  int node_index = 0;
+  int count = 0;
+
+  while (cur_node != NULL) {
+
+    if (cur_node->el[node_index] != NULL) {
+      printf("Token %d : |%s|\n", count, cur_node->el[node_index]);
+      count++;
+    } else {
+      return;
+    }
+
+    node_index++;
+    if (node_index >= TOK_NODE_ELEMENTS) {
+      cur_node = cur_node->next;
+      node_index = 0;
+    }
+  }
+}
+
+void
+Tokenizer::ReUse()
+{
+  tok_node *cur_node = &start_node;
+
+  while (cur_node != NULL) {
+    if (options & COPY_TOKS) {
+      for (int i = 0; i < TOK_NODE_ELEMENTS; i++)
+        ats_free(cur_node->el[i]);
+    }
+    memset(cur_node->el, 0, sizeof(char *) * TOK_NODE_ELEMENTS);
+    cur_node = cur_node->next;
+  }
+
+  numValidTokens = 0;
+  add_node = &start_node;
+  add_index = 0;
+}
diff --git a/lib/ts/Tokenizer.h b/lib/ts/Tokenizer.h
new file mode 100644
index 00000000..fdc99c55
--- /dev/null
+++ b/lib/ts/Tokenizer.h
@@ -0,0 +1,163 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+
+#ifndef _TOKENIZER_H_
+#define _TOKENIZER_H_
+
+/****************************************************************************
+ *
+ *  Tokenizer.h - A string tokenzier
+ *
+ *
+ *
+ ****************************************************************************/
+
+/**********************************************************
+ *  class Tokenizer
+ *
+ *  Tokenizes a string, and then allows array like access
+ *
+ *  The delimiters are determined by the string passed to the
+ *   the constructor.
+ *
+ *  There are three memory options.
+ *     SHARE_TOKS - this modifies the original string passed in
+ *          through Intialize() and shares its space.   NULLs
+ *          are inserted into string after each token.  Choosing
+ *          this option means the user is reponsible for not
+ *          deallocating the string storage before deallocating
+ *          the tokenizer object
+ *     COPY_TOKS - this option copies the orginial string and
+ *          leaves the original unchanged.  The deallocation of the
+ *          original string and the deallocation of the Tokenizer
+ *          object are now independent.
+ *     Note: If neither SHARE_TOKS or COPY_TOKS is selected, COPY_TOKS
+ *          is the default
+ *     ALLOW_EMPTY_TOKENS: If multiple delimiters appear next to each
+ *          other, each delimiter creates a token someof which
+ *          will be zero length.  The default is to skip repeated
+ *          delimiters
+ *
+ *  Tokenizer(const char* StrOfDelimit) - a string that contains
+ *     the delimiters for tokenizing.  This string is copied.
+ *
+ *  Intialize(char* str, TokenizerOpts opt) - Submits a string
+ *     to be tokenized according to the memory options listed above
+ *
+ *  ReUse() - Allows the object to be reused for a new string
+ *     After ReUse() is called, Initialize() can be called safely
+ *     again
+ *
+ *  operator[index] - returns a pointer to the number token given
+ *     by index.  If index > numTokens-1, NULL is returned.
+ *     Because of way tokens are stored, this is O(n) operation
+ *     It is very fast though for the first 16 tokens and
+ *     is intended to be used on a small number of tokens
+ *
+ *  iterFirst(tok_iter_state* state) - Returns the first
+ *     token and intializes state argument for subsequent
+ *     calls to iterNext.  If no tokens exist, NULL is
+ *     returned
+ *
+ *  iterNext(tok_iter_state* state) - Returns the next token after
+ *     what arg state returned next last time.   Returns NULL if no
+ *     more tokens exists.
+ *
+ *  Note: To iterate through a list using operator[] takes O(n^2) time
+ *      Using iterFirst, iterNext the running time is O(n), so use
+ *      the iteration where possible
+ *
+ *  getNumber() - returns the number of tokens
+ *
+ *  setMaxTokens() - sets the maximum number of tokens.  Once maxTokens
+ *                     is reached, delimiters are ignored and the
+ *                     last token is rest of the string.  Negative numbers
+ *                     mean no limit on the number of tokens
+ *
+ *  getMaxTokens() - returns maxTokens.  Negative number mean no limit
+ *
+ *  Print() - Debugging method to print out the tokens
+ *
+ *******************************************************************/
+
+#include "ink_apidefs.h"
+
+#define COPY_TOKS         1 << 0
+#define SHARE_TOKS        1 << 1
+#define ALLOW_EMPTY_TOKS  1 << 2
+
+#define TOK_NODE_ELEMENTS  16
+struct tok_node
+{
+  char *el[TOK_NODE_ELEMENTS];
+  tok_node *next;
+};
+
+struct tok_iter_state
+{
+  tok_node *node;
+  int index;
+};
+
+
+
+class Tokenizer
+{
+public:
+  inkcoreapi Tokenizer(const char *StrOfDelimiters);
+    inkcoreapi ~ Tokenizer();
+  int Initialize(char *str, int opt);
+  inkcoreapi int Initialize(const char *str);   // Automatically sets option to copy
+  const char *operator [] (int index);
+  void setMaxTokens(int max)
+  {
+    maxTokens = max;
+  };
+  int getMaxTokens()
+  {
+    return maxTokens;
+  };
+  int getNumber();
+  void Print();                 // Debugging print out
+  inkcoreapi const char *iterFirst(tok_iter_state * state);
+  inkcoreapi const char *iterNext(tok_iter_state * state);
+private:
+  Tokenizer & operator=(const Tokenizer &);
+  Tokenizer(const Tokenizer &);
+  int isDelimiter(char c);
+  void addToken(char *startAddr, int length);
+  void ReUse();
+  char *strOfDelimit;
+  tok_node start_node;
+  int numValidTokens;
+  int maxTokens;
+  int options;
+
+  // State about where to add the next token
+  tok_node *add_node;
+  int add_index;
+};
+
+#endif
diff --git a/lib/ts/Trie.h b/lib/ts/Trie.h
new file mode 100644
index 00000000..257ab2a2
--- /dev/null
+++ b/lib/ts/Trie.h
@@ -0,0 +1,246 @@
+/** @file
+
+    Trie implementation for 8-bit string keys.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#ifndef _TRIE_H
+#define _TRIE_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "List.h"
+
+// Note that you should provide the class to use here, but we'll store
+// pointers to such objects internally.
+template<typename T>
+class Trie
+{
+public:
+  Trie()
+    {
+      m_root.Clear();
+    }
+
+  // will return false for duplicates; key should be NULL-terminated
+  // if key_len is defaulted to -1
+  bool Insert(const char *key, T *value, int rank, int key_len = -1);
+
+  // will return false if not found; else value_ptr will point to found value
+  T* Search(const char *key, int key_len = -1) const;
+  void Clear();
+  void Print();
+
+  bool Empty() const { return m_value_list.empty(); }
+
+  virtual ~Trie() { Clear(); }
+
+private:
+  static const int N_NODE_CHILDREN = 256;
+
+  class Node
+  {
+  public:
+    T* value;
+    bool occupied;
+    int rank;
+
+    void Clear() {
+      value = NULL;
+      occupied = false;
+      rank = 0;
+      ink_zero(children);
+    }
+
+    void Print(const char *debug_tag) const;
+    inline Node* GetChild(char index) const { return children[static_cast<unsigned char>(index)]; }
+    inline Node* AllocateChild(char index) {
+      Node * &child = children[static_cast<unsigned char>(index)];
+      ink_assert(child == NULL);
+      child = static_cast<Node*>(ats_malloc(sizeof(Node)));
+      child->Clear();
+      return child;
+    }
+
+  private:
+    Node *children[N_NODE_CHILDREN];
+  };
+
+  Node m_root;
+  Queue<T> m_value_list;
+
+  void _CheckArgs(const char *key, int &key_len) const;
+  void _Clear(Node *node);
+
+  // make copy-constructor and assignment operator private
+  // till we properly implement them
+  Trie(const Trie<T> &rhs) { };
+  Trie &operator =(const Trie<T> &rhs) { return *this; }
+};
+
+template<typename T>
+void
+Trie<T>::_CheckArgs(const char *key, int &key_len) const
+{
+  if (!key) {
+    key_len = 0;
+  }
+  else if (key_len == -1) {
+    key_len = strlen(key);
+  }
+}
+
+template<typename T>
+bool
+Trie<T>::Insert(const char *key, T* value, int rank, int key_len /* = -1 */)
+{
+  _CheckArgs(key, key_len);
+
+  Node *next_node;
+  Node *curr_node = &m_root;
+  int i = 0;
+
+  while (true) {
+    if (is_debug_tag_set("Trie::Insert")) {
+      Debug("Trie::Insert", "Visiting Node...");
+      curr_node->Print("Trie::Insert");
+    }
+
+    if (i == key_len) {
+      break;
+    }
+
+    next_node = curr_node->GetChild(key[i]);
+    if (!next_node) {
+      while (i < key_len) {
+        Debug("Trie::Insert", "Creating child node for char %c (%d)", key[i], key[i]);
+        curr_node = curr_node->AllocateChild(key[i]);
+        ++i;
+      }
+      break;
+    }
+    curr_node = next_node;
+    ++i;
+  }
+
+  if (curr_node->occupied) {
+    Debug("Trie::Insert", "Cannot insert duplicate!");
+    return false;
+  }
+
+  curr_node->occupied = true;
+  curr_node->value = value;
+  curr_node->rank = rank;
+  m_value_list.enqueue(curr_node->value);
+  Debug("Trie::Insert", "inserted new element!");
+  return true;
+}
+
+template<typename T>
+T*
+Trie<T>::Search(const char *key, int key_len /* = -1 */) const
+{
+  _CheckArgs(key, key_len);
+
+  const Node *found_node = 0;
+  const Node *curr_node = &m_root;
+  int i = 0;
+
+  while (curr_node) {
+    if (is_debug_tag_set("Trie::Search")) {
+      Debug("Trie::Search", "Visiting node...");
+      curr_node->Print("Trie::Search");
+    }
+    if (curr_node->occupied) {
+      if (!found_node || curr_node->rank <= found_node->rank) {
+        found_node = curr_node;
+      }
+    }
+    if (i == key_len) {
+      break;
+    }
+    curr_node = curr_node->GetChild(key[i]);
+    ++i;
+  }
+
+  if (found_node) {
+    Debug("Trie::Search", "Returning element with rank %d", found_node->rank);
+    return found_node->value;
+  }
+
+  return NULL;
+}
+
+
+template<typename T>
+void
+Trie<T>::_Clear(Node *node)
+{
+  Node *child;
+
+  for (int i = 0; i < N_NODE_CHILDREN; ++i) {
+    child = node->GetChild(i);
+    if (child) {
+      _Clear(child);
+      ats_free(child);
+    }
+  }
+}
+
+template<typename T>
+void
+Trie<T>::Clear()
+{
+  forl_LL(T, iter, m_value_list)
+    delete iter;
+  m_value_list.clear();
+
+  _Clear(&m_root);
+  m_root.Clear();
+}
+
+template<typename T>
+void
+Trie<T>::Print() {
+  // The class we contain must provide a ::Print() method.
+  forl_LL(T, iter, m_value_list)
+    iter->Print();
+}
+
+template<typename T>
+void
+Trie<T>::Node::Print(const char *debug_tag) const
+{
+  if (occupied) {
+    Debug(debug_tag, "Node is occupied");
+    Debug(debug_tag, "Node has rank %d", rank);
+  } else {
+    Debug(debug_tag, "Node is not occupied");
+  }
+
+  for (int i = 0; i < N_NODE_CHILDREN; ++i) {
+    if (GetChild(i)) {
+      Debug(debug_tag, "Node has child for char %c", static_cast<char>(i));
+    }
+  }
+}
+
+#endif // _TRIE_H
diff --git a/lib/ts/TsBuffer.h b/lib/ts/TsBuffer.h
new file mode 100644
index 00000000..dbcd72e6
--- /dev/null
+++ b/lib/ts/TsBuffer.h
@@ -0,0 +1,411 @@
+# if ! defined TS_BUFFER_HEADER
+# define TS_BUFFER_HEADER
+
+/** @file
+    Definitions for a buffer type, to carry a reference to a chunk of memory.
+
+    @internal This is a copy of TsBuffer.h in lib/tsconfig. That should
+    eventually be replaced with this promoted file.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# if defined _MSC_VER
+# include <stddef.h>
+# else
+# include <unistd.h>
+# endif
+
+// For memcmp()
+# include <memory.h>
+
+/// Apache Traffic Server commons.
+namespace ts {
+  struct ConstBuffer;
+  /** A chunk of writable memory.
+      A convenience class because we pass this kind of pair frequently.
+
+      @note The default construct leaves the object
+      uninitialized. This is for performance reasons. To construct an
+      empty @c Buffer use @c Buffer(0).
+   */
+  struct Buffer {
+    typedef Buffer self; ///< Self reference type.
+    typedef bool (self::*pseudo_bool)() const;
+
+    char * _ptr; ///< Pointer to base of memory chunk.
+    size_t _size; ///< Size of memory chunk.
+
+    /// Default constructor.
+    /// Elements are in uninitialized state.
+    Buffer();
+
+    /** Construct from pointer and size.
+	@note Due to ambiguity issues do not call this with
+	two arguments if the first argument is 0.
+     */
+    Buffer(
+      char* ptr, ///< Pointer to buffer.
+      size_t n = 0 ///< Size of buffer.
+    );
+    /** Construct from two pointers.
+	@note This presumes a half open range, (start, end]
+	@note Due to ambiguity issues do not invoke this with
+	@a start == 0.
+    */
+    Buffer(
+	   char* start, ///< First valid character.
+	   char* end ///< First invalid character.
+	   );
+
+    /** Equality.
+        @return @c true if @a that refers to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator == (self const& that) const;
+    /** Inequality.
+        @return @c true if @a that does not refer to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator != (self const& that) const;
+    /** Equality for a constant buffer.
+        @return @c true if @a that refers to the same memory as @a this.
+        @c false otherwise.
+     */
+    bool operator == (ConstBuffer const& that) const;
+    /** Inequality.
+        @return @c true if @a that does not refer to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator != (ConstBuffer const& that) const;
+
+    /// @return The first character in the buffer.
+    char operator* () const;
+    /** Discard the first character in the buffer.
+        @return @a this object.
+    */
+    self& operator++();
+
+    /// Check for empty buffer.
+    /// @return @c true if the buffer has a zero pointer @b or size.
+    bool operator ! () const;
+    /// Check for non-empty buffer.
+    /// @return @c true if the buffer has a non-zero pointer @b and size.
+    operator pseudo_bool() const;
+
+    /// @name Accessors.
+    //@{
+    /// Get the data in the buffer.
+    char* data() const;
+    /// Get the size of the buffer.
+    size_t size() const;
+    //@}
+
+    /// Set the chunk.
+    /// Any previous values are discarded.
+    /// @return @c this object.
+    self& set(
+      char* ptr, ///< Buffer address.
+      size_t n = 0 ///< Buffer size.
+    );
+    /// Reset to empty.
+    self& reset();
+  };
+
+  /** A chunk of read only memory.
+      A convenience class because we pass this kind of pair frequently.
+
+      @note The default construct leaves the object
+      uninitialized. This is for performance reasons. To construct an
+      empty @c Buffer use @c Buffer(0).
+   */
+  struct ConstBuffer {
+    typedef ConstBuffer self; ///< Self reference type.
+    typedef bool (self::*pseudo_bool)() const;
+
+    char const * _ptr; ///< Pointer to base of memory chunk.
+    size_t _size; ///< Size of memory chunk.
+
+    /// Default constructor.
+    /// Elements are in uninitialized state.
+    ConstBuffer();
+
+    /** Construct from pointer and size.
+	@note Due to ambiguity issues do not call this with
+	two arguments if the first argument is 0.
+     */
+    ConstBuffer(
+      char const * ptr, ///< Pointer to buffer.
+      size_t n = 0///< Size of buffer.
+    );
+    /** Construct from two pointers.
+	@note This presumes a half open range (start, end]
+	@note Due to ambiguity issues do not invoke this with
+	@a start == 0.
+    */
+    ConstBuffer(
+	   char const* start, ///< First valid character.
+	   char const* end ///< First invalid character.
+	   );
+    /// Construct from writable buffer.
+    ConstBuffer(
+        Buffer const& buffer ///< Buffer to copy.
+    );
+
+    /** Equality.
+        @return @c true if @a that refers to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator == (self const& that) const;
+    /** Equality.
+        @return @c true if @a that refers to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator == (Buffer const& that) const;
+    /** Inequality.
+        @return @c true if @a that does not refer to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator != (self const& that) const;
+    /** Inequality.
+        @return @c true if @a that does not refer to the same memory as @a this,
+        @c false otherwise.
+     */
+    bool operator != (Buffer const& that) const;
+    /// Assign from non-const Buffer.
+    self& operator = (
+        Buffer const& that ///< Source buffer.
+    );
+
+    /// @return The first character in the buffer.
+    char operator* () const;
+    /** Discard the first character in the buffer.
+        @return @a this object.
+    */
+    self& operator++();
+    /** Discard the first @a n characters.
+	@return @a this object.
+    */
+    self& operator += (size_t n);
+
+    /// Check for empty buffer.
+    /// @return @c true if the buffer has a zero pointer @b or size.
+    bool operator ! () const;
+    /// Check for non-empty buffer.
+    /// @return @c true if the buffer has a non-zero pointer @b and size.
+    operator pseudo_bool() const;
+
+    /// @name Accessors.
+    //@{
+    /// Get the data in the buffer.
+    char const * data() const;
+    /// Get the size of the buffer.
+    size_t size() const;
+    /// Access a character (no bounds check).
+    char operator[] (int n) const;
+    //@}
+    /// @return @c true if @a p points at a character in @a this.
+    bool contains(char const* p) const;
+
+    /// Set the chunk.
+    /// Any previous values are discarded.
+    /// @return @c this object.
+    self& set(
+      char const * ptr, ///< Buffer address.
+      size_t n = 0 ///< Buffer size.
+    );
+    /** Set from 2 pointers.
+	@note This presumes a half open range (start, end]
+    */
+    self& set(
+	   char const* start, ///< First valid character.
+	   char const* end ///< First invalid character.
+	   );
+    /// Reset to empty.
+    self& reset();
+
+    /** Find a character.
+        @return A pointer to the first occurrence of @a c in @a this
+        or @c NULL if @a c is not found.
+    */
+    char const* find(char c) const;
+
+    /** Split the buffer on the character at @a p.
+
+        The buffer is split in to two parts and the character at @a p
+        is discarded. @a this retains all data @b after @a p. The
+        initial part of the buffer is returned. Neither buffer will
+        contain the character at @a p.
+
+        This is convenient when tokenizing and @a p points at the token
+        separator.
+
+        @note If @a *p is in the buffer then @a this is not changed
+        and an empty buffer is returned. This means the caller can
+        simply pass the result of @c find and check for an empty
+        buffer returned to detect no more separators.
+
+        @return A buffer containing data up to but not including @a p.
+    */
+    self splitOn(char const* p);
+
+    /** Split the buffer on the character @a c.
+
+        The buffer is split in to two parts and the occurrence of @a c
+        is discarded. @a this retains all data @b after @a c. The
+        initial part of the buffer is returned. Neither buffer will
+        contain the first occurrence of @a c.
+
+        This is convenient when tokenizing and @a c is the token
+        separator.
+
+        @note If @a c is not found then @a this is not changed and an
+        empty buffer is returned.
+
+        @return A buffer containing data up to but not including @a p.
+    */
+    self splitOn(char c);
+    /** Get a trailing segment of the buffer.
+    
+        @return A buffer that contains all data after @a p.
+    */
+    self after(char const* p) const;
+    /** Get a trailing segment of the buffer.
+
+        @return A buffer that contains all data after the first
+        occurrence of @a c.
+    */
+    self after(char c) const;
+    /** Remove trailing segment.
+
+        Data at @a p and beyond is removed from the buffer.
+        If @a p is not in the buffer, no change is made.
+
+        @return @a this.
+    */
+    self& clip(char const* p);
+  };
+
+  // ----------------------------------------------------------
+  // Inline implementations.
+
+  inline Buffer::Buffer() { }
+  inline Buffer::Buffer(char* ptr, size_t n) : _ptr(ptr), _size(n) { }
+  inline Buffer& Buffer::set(char* ptr, size_t n) { _ptr = ptr; _size = n; return *this; }
+  inline Buffer::Buffer(char* start, char* end) : _ptr(start), _size(end - start) { }
+  inline Buffer& Buffer::reset() { _ptr = 0; _size = 0 ; return *this; }
+  inline bool Buffer::operator != (self const& that) const { return ! (*this == that); }
+  inline bool Buffer::operator != (ConstBuffer const& that) const { return ! (*this == that); }
+  inline bool Buffer::operator == (self const& that) const {
+    return _size == that._size &&  _ptr == that._ptr;
+  }
+  inline bool Buffer::operator == (ConstBuffer const& that) const {
+    return _size == that._size &&  _ptr == that._ptr;
+  }
+  inline bool Buffer::operator ! () const { return !(_ptr && _size); }
+  inline Buffer::operator pseudo_bool() const { return _ptr && _size ? &self::operator! : 0; }
+  inline char Buffer::operator * () const { return *_ptr; }
+  inline Buffer& Buffer::operator++ () {
+    ++_ptr;
+    --_size;
+    return *this;
+  }
+  inline char * Buffer::data() const { return _ptr; }
+  inline size_t Buffer::size() const { return _size; }
+
+  inline ConstBuffer::ConstBuffer() { }
+  inline ConstBuffer::ConstBuffer(char const* ptr, size_t n) : _ptr(ptr), _size(n) { }
+  inline ConstBuffer::ConstBuffer(char const* start, char const* end) : _ptr(start), _size(end - start) { }
+  inline ConstBuffer::ConstBuffer(Buffer const& that) : _ptr(that._ptr), _size(that._size) { }
+  inline ConstBuffer& ConstBuffer::set(char const* ptr, size_t n) { _ptr = ptr; _size = n; return *this; }
+
+  inline ConstBuffer& ConstBuffer::set(char const* start, char const* end) {
+    _ptr = start;
+    _size = end - start;
+    return *this;
+  }
+
+  inline ConstBuffer& ConstBuffer::reset() { _ptr = 0; _size = 0 ; return *this; }
+  inline bool ConstBuffer::operator != (self const& that) const { return ! (*this == that); }
+  inline bool ConstBuffer::operator != (Buffer const& that) const { return ! (*this == that); }
+  inline bool ConstBuffer::operator == (self const& that) const {
+      return _size == that._size && 0 == memcmp(_ptr, that._ptr, _size);
+  }
+  inline ConstBuffer& ConstBuffer::operator = (Buffer const& that) { _ptr = that._ptr ; _size = that._size; return *this; }
+  inline bool ConstBuffer::operator == (Buffer const& that) const {
+      return _size == that._size && 0 == memcmp(_ptr, that._ptr, _size);
+  }
+  inline bool ConstBuffer::operator ! () const { return !(_ptr && _size); }
+  inline ConstBuffer::operator pseudo_bool() const { return _ptr && _size ? &self::operator! : 0; }
+  inline char ConstBuffer::operator * () const { return *_ptr; }
+  inline ConstBuffer& ConstBuffer::operator++ () {
+    ++_ptr;
+    --_size;
+    return *this;
+  }
+  inline ConstBuffer& ConstBuffer::operator += (size_t n) {
+    _ptr += n;
+    _size -= n;
+    return *this;
+  }
+  inline char const * ConstBuffer::data() const { return _ptr; }
+  inline char ConstBuffer::operator[] (int n) const { return _ptr[n]; }
+  inline size_t ConstBuffer::size() const { return _size; }
+  inline bool ConstBuffer::contains(char const* p) const {
+    return _ptr <= p && p < _ptr + _size;
+  }
+
+  inline ConstBuffer ConstBuffer::splitOn(char const* p) {
+    self zret(0); // default to empty return.
+    if (this->contains(p)) {
+      size_t n = p - _ptr;
+      zret.set(_ptr, n);
+      _ptr = p + 1;
+      _size -= n + 1;
+    }
+    return zret;
+  }
+    
+  inline char const* ConstBuffer::find(char c) const {
+    return static_cast<char const*>(memchr(_ptr, c, _size));
+  }
+
+  inline ConstBuffer ConstBuffer::splitOn(char c) {
+    return this->splitOn(this->find(c));
+  }
+
+  inline ConstBuffer ConstBuffer::after(char const* p) const {
+    return this->contains(p) ? self(p + 1, (_size-(p-_ptr))-1) : self(0);
+  }
+  inline ConstBuffer ConstBuffer::after(char c) const {
+    return this->after(this->find(c));
+  }
+  inline ConstBuffer& ConstBuffer::clip(char const* p) {
+    if (this->contains(p)) {
+      _size = p - _ptr;
+    }
+    return *this;
+  }
+
+} // end namespace
+
+typedef ts::Buffer TsBuffer;
+typedef ts::ConstBuffer TsConstBuffer;
+
+# endif // TS_BUFFER_HEADER
diff --git a/lib/ts/Vec.cc b/lib/ts/Vec.cc
new file mode 100644
index 00000000..66d2ddab
--- /dev/null
+++ b/lib/ts/Vec.cc
@@ -0,0 +1,203 @@
+/* -*-Mode: c++;-*-
+  Various vector related code.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/* UnionFind after Tarjan */
+
+#include <stdint.h>
+#include "Vec.h"
+
+const uintptr_t prime2[] = {
+  1, 3, 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191,
+  16381, 32749, 65521, 131071, 262139, 524287, 1048573, 2097143,
+  4194301, 8388593, 16777213, 33554393, 67108859, 134217689,
+  268435399, 536870909
+};
+  
+// primes generated with map_mult.c
+const uintptr_t open_hash_primes[256] = {
+0x02D4AF27, 0x1865DFC7, 0x47C62B43, 0x35B4889B, 0x210459A1, 0x3CC51CC7, 0x02ADD945, 0x0607C4D7, 
+0x558E6035, 0x0554224F, 0x5A281657, 0x1C458C7F, 0x7F8BE723, 0x20B9BA99, 0x7218AA35, 0x64B10C2B, 
+0x548E8983, 0x5951218F, 0x7AADC871, 0x695FA5B1, 0x40D40FCB, 0x20E03CC9, 0x55E9920F, 0x554CE08B, 
+0x7E78B1D7, 0x7D965DF9, 0x36A520A1, 0x1B0C6C11, 0x33385667, 0x2B0A7B9B, 0x0F35AE23, 0x0BD608FB, 
+0x2284ADA3, 0x6E6C0687, 0x129B3EED, 0x7E86289D, 0x1143C24B, 0x1B6C7711, 0x1D87BB41, 0x4C7E635D, 
+0x67577999, 0x0A0113C5, 0x6CF085B5, 0x14A4D0FB, 0x4E93E3A7, 0x5C87672B, 0x67F3CA17, 0x5F944339, 
+0x4C16DFD7, 0x5310C0E3, 0x2FAD1447, 0x4AFB3187, 0x08468B7F, 0x49E56C51, 0x6280012F, 0x097D1A85, 
+0x34CC9403, 0x71028BD7, 0x6DEDC7E9, 0x64093291, 0x6D78BB0B, 0x7A03B465, 0x2E044A43, 0x1AE58515, 
+0x23E495CD, 0x46102A83, 0x51B78A59, 0x051D8181, 0x5352CAC9, 0x57D1312B, 0x2726ED57, 0x2E6BC515, 
+0x70736281, 0x5938B619, 0x0D4B6ACB, 0x44AB5E2B, 0x0029A485, 0x002CE54F, 0x075B0591, 0x3EACFDA9, 
+0x0AC03411, 0x53B00F73, 0x2066992D, 0x76E72223, 0x55F62A8D, 0x3FF92EE1, 0x17EE0EB3, 0x5E470AF1, 
+0x7193EB7F, 0x37A2CCD3, 0x7B44F7AF, 0x0FED8B3F, 0x4CC05805, 0x7352BF79, 0x3B61F755, 0x523CF9A3, 
+0x1AAFD219, 0x76035415, 0x5BE84287, 0x6D598909, 0x456537E9, 0x407EA83F, 0x23F6FFD5, 0x60256F39, 
+0x5D8EE59F, 0x35265CEB, 0x1D4AD4EF, 0x676E2E0F, 0x2D47932D, 0x776BB33B, 0x6DE1902B, 0x2C3F8741, 
+0x5B2DE8EF, 0x686DDB3B, 0x1D7C61C7, 0x1B061633, 0x3229EA51, 0x7FCB0E63, 0x5F22F4C9, 0x517A7199, 
+0x2A8D7973, 0x10DCD257, 0x41D59B27, 0x2C61CA67, 0x2020174F, 0x71653B01, 0x2FE464DD, 0x3E7ED6C7, 
+0x164D2A71, 0x5D4F3141, 0x5F7BABA7, 0x50E1C011, 0x140F5D77, 0x34E80809, 0x04AAC6B3, 0x29C42BAB, 
+0x08F9B6F7, 0x461E62FD, 0x45C2660B, 0x08BF25A7, 0x5494EA7B, 0x0225EBB7, 0x3C5A47CF, 0x2701C333, 
+0x457ED05B, 0x48CDDE55, 0x14083099, 0x7C69BDAB, 0x7BF163C9, 0x41EE1DAB, 0x258B1307, 0x0FFAD43B, 
+0x6601D767, 0x214DBEC7, 0x2852CCF5, 0x0009B471, 0x190AC89D, 0x5BDFB907, 0x15D4E331, 0x15D22375, 
+0x13F388D5, 0x12ACEDA5, 0x3835EA5D, 0x2587CA35, 0x06756643, 0x487C6F55, 0x65C295EB, 0x1029F2E1, 
+0x10CEF39D, 0x14C2E415, 0x444825BB, 0x24BE0A2F, 0x1D2B7C01, 0x64AE3235, 0x5D2896E5, 0x61BBBD87, 
+0x4A49E86D, 0x12C277FF, 0x72C81289, 0x5CF42A3D, 0x332FF177, 0x0DAECD23, 0x6000ED1D, 0x203CDDE1, 
+0x40C62CAD, 0x19B9A855, 0x782020C3, 0x6127D5BB, 0x719889A7, 0x40E4FCCF, 0x2A3C8FF9, 0x07411C7F, 
+0x3113306B, 0x4D7CA03F, 0x76119841, 0x54CEFBDF, 0x11548AB9, 0x4B0748EB, 0x569966B1, 0x45BC721B, 
+0x3D5A376B, 0x0D8923E9, 0x6D95514D, 0x0F39A367, 0x2FDAD92F, 0x721F972F, 0x42D0E21D, 0x5C5952DB, 
+0x7394D007, 0x02692C55, 0x7F92772F, 0x025F8025, 0x34347113, 0x560EA689, 0x0DCC21DF, 0x09ECC7F5, 
+0x091F3993, 0x0E0B52AB, 0x497CAA55, 0x0A040A49, 0x6D8F0CC5, 0x54F41609, 0x6E0CB8DF, 0x3DCB64C3, 
+0x16C365CD, 0x6D6B9FB5, 0x02B9382B, 0x6A5BFAF1, 0x1669D75F, 0x13CFD4FD, 0x0FDF316F, 0x21F3C463, 
+0x6FC58ABF, 0x04E45BE7, 0x1911225B, 0x28CD1355, 0x222084E9, 0x672AD54B, 0x476FC267, 0x6864E16D, 
+0x20AEF4FB, 0x603C5FB9, 0x55090595, 0x1113B705, 0x24E38493, 0x5291AF97, 0x5F5446D9, 0x13A6F639, 
+0x3D501313, 0x37E02017, 0x236B0ED3, 0x60F246BF, 0x01E02501, 0x2D2F66BD, 0x6BF23609, 0x16729BAF
+};
+
+// binary search over intervals
+static int
+i_find(const Intervals *i, int x) {
+  ink_assert(i->n);
+  int l = 0, h = i->n;
+ Lrecurse:
+  if (h <= l + 2) {
+    if (h <= l)
+      return -(l + 1);
+    if (x < i->v[l] || x > i->v[l + 1])
+      return -(l + 1);
+    return h;
+  }
+  int m = (((h - l) / 4) * 2) + l;
+  if (x > i->v[m + 1]) {
+    l = m;
+    goto Lrecurse;
+  }
+  if (x < i->v[m]) {    
+    h = m;
+    goto Lrecurse;
+  }
+  return (l + 1);
+}
+
+bool
+Intervals::in(int x) const {
+  if (!n)
+    return false;
+  if (i_find(this, x) > 0)
+    return true;
+  return false;
+}
+
+// insert into interval with merge
+void 
+Intervals::insert(int x) {
+  if (!n) {
+    add(x);
+    add(x);
+    return;
+  }
+  int l = i_find(this, x);
+  if (l > 0)
+    return;
+  l = -l - 1;
+
+  if (x > v[l + 1]) {
+    if (x == v[l + 1] + 1) {
+      v[l + 1]++;
+      goto Lmerge;
+    }
+    l += 2;
+    if (l < (int)n) {
+      if (x == v[l] - 1) {
+        v[l]--;
+        goto Lmerge;
+      }
+    }
+    goto Lmore;
+  } else {
+    ink_assert(x < v[l]);
+    if (x == v[l] - 1) {
+      v[l]--;
+      goto Lmerge;
+    }
+    if (!l)
+      goto Lmore;
+    l -= 2;
+    if (x == v[l + 1] + 1) {
+      v[l + 1]++;
+      goto Lmerge;
+    }
+  }
+ Lmore:
+  fill(n + 2);
+  if (n - 2 - l > 0)
+    memmove(v + l + 2, v + l, sizeof(int) * (n - 2 - l));
+  v[l] = x;
+  v[l+1] = x;
+  return;
+ Lmerge:
+  if (l) {
+    if (v[l] - v[l-1] < 2) {
+      l -= 2;
+      goto Ldomerge;
+    }
+  }
+  if (l < (int)(n - 2)) {
+    if (v[l + 2] - v[l + 1] < 2)
+      goto Ldomerge;
+  }
+  return;
+ Ldomerge:
+  memmove(v + l + 1, v + l + 3, sizeof(int) * (n - 3 - l));
+  n -= 2;
+  goto Lmerge;
+}
+
+void
+UnionFind::size(int s) {
+  size_t nn = n;
+  fill(s);
+  for (size_t i = nn; i < n; i++)
+    v[i] = -1;
+}
+
+int
+UnionFind::find(int n) {
+  int i, t;
+  for (i = n; v[i] >= 0; i = v[i]);
+  while (v[n] >= 0) {
+    t = n;
+    n = v[n];
+    v[t] = i;
+  }
+  return i;
+}
+
+void 
+UnionFind::unify(int n, int m) {
+  n = find(n);
+  m = find(m);
+  if (n != m) {
+    if (v[m] < v[n]) {
+      v[m] += (v[n] - 1);
+      v[n] = m;
+    } else {
+      v[n] += (v[m] - 1);
+      v[m] = n;
+    }
+  }
+}
diff --git a/lib/ts/Vec.h b/lib/ts/Vec.h
new file mode 100644
index 00000000..3deef083
--- /dev/null
+++ b/lib/ts/Vec.h
@@ -0,0 +1,833 @@
+/** @file
+
+  Vector and Set templates with qsort.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#ifndef _vec_H_
+#define _vec_H_
+
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include "defalloc.h"
+#include "ink_assert.h"
+
+// Simple Vector class, also supports open hashed sets
+
+#define VEC_INTEGRAL_SHIFT_DEFAULT      2               /* power of 2 (1 << VEC_INTEGRAL_SHIFT)*/
+#define VEC_INTEGRAL_SIZE               (1 << (S))
+#define VEC_INITIAL_SHIFT               ((S)+1)
+#define VEC_INITIAL_SIZE                (1 << VEC_INITIAL_SHIFT)
+
+#define SET_LINEAR_SIZE         4               /* must be <= than VEC_INTEGRAL_SIZE */
+#define SET_INITIAL_INDEX       2
+
+template <class C, class A = DefaultAlloc, int S = VEC_INTEGRAL_SHIFT_DEFAULT>  // S must be a power of 2
+class Vec {
+ public:
+  size_t        n;
+  size_t        i;      // size index for sets, reserve for vectors
+  C             *v;
+  C             e[VEC_INTEGRAL_SIZE];
+  
+  Vec();
+  Vec<C,A,S>(const Vec<C,A,S> &vv);
+  Vec<C,A,S>(const C c);
+  ~Vec();
+
+  C &operator[](int i) const { return v[i]; }
+
+  C get(size_t i);
+  void add(C a);  
+  void push_back(C a) { add(a); } // std::vector name
+  bool add_exclusive(C a);
+  C& add();
+  C pop();
+  void reset();
+  void clear();
+  void free_and_clear();
+  void delete_and_clear();
+  void set_clear();
+  C *set_add(C a);
+  void set_remove(C a); // expensive, use BlockHash for cheaper remove
+  C *set_add_internal(C a);
+  bool set_union(Vec<C,A,S> &v);
+  int set_intersection(Vec<C,A,S> &v);
+  int some_intersection(Vec<C,A,S> &v);
+  int some_disjunction(Vec<C,A,S> &v);
+  int some_difference(Vec<C,A,S> &v);
+  void set_intersection(Vec<C,A,S> &v, Vec<C,A,S> &result);
+  void set_disjunction(Vec<C,A,S> &v, Vec<C,A,S> &result);
+  void set_difference(Vec<C,A,S> &v, Vec<C,A,S> &result);
+  size_t set_count() const;
+  size_t count() const;
+  C *in(C a);
+  C *set_in(C a);
+  C first_in_set();
+  C *set_in_internal(C a);
+  void set_expand();
+  ssize_t index(C a) const;
+  void set_to_vec();
+  void vec_to_set();
+  void move(Vec<C,A,S> &v);
+  void copy(const Vec<C,A,S> &v);
+  void fill(size_t n);
+  void append(const Vec<C> &v);
+  template <typename CountType> void append(const C * src, CountType count);
+  void prepend(const Vec<C> &v);
+  void remove_index(int index);
+  void remove(C a) { int i = index(a); if (i>=0) remove_index(i); }
+  C& insert(size_t index);
+  void insert(size_t index, Vec<C> &vv);
+  void insert(size_t index, C a);
+  void push(C a) { insert(0, a); }
+  void reverse();
+  void reserve(size_t n);
+  C* end() const { return v + n; }
+  C &first() const { return v[0]; }
+  C &last() const { return v[n-1]; }
+  Vec<C,A,S>& operator=(Vec<C,A,S> &v) { this->copy(v); return *this; }
+  unsigned length () const { return n; }
+  // vector::size() intentionally not implemented because it should mean "bytes" not count of elements
+  int write(int fd);
+  int read(int fd);
+  void qsort(bool (*lt)(C,C));
+  
+private:
+  void move_internal(Vec<C,A,S> &v);
+  void copy_internal(const Vec<C,A,S> &v);
+  void add_internal(C a);
+  C& add_internal();
+  void addx();
+};
+
+// c -- class, p -- pointer to elements of v, v -- vector
+#define forv_Vec(_c, _p, _v) if ((_v).n) for (_c *qq__##_p = (_c*)0, *_p = (_v).v[0]; \
+                    ((intptr_t)(qq__##_p) < (_v).length()) && ((_p = (_v).v[(intptr_t)qq__##_p]) || 1); qq__##_p = (_c*)(((intptr_t)qq__##_p) + 1))
+#define for_Vec(_c, _p, _v) if ((_v).n) for (_c *qq__##_p = (_c*)0, _p = (_v).v[0]; \
+                    ((intptr_t)(qq__##_p) < (_v).length()) && ((_p = (_v).v[(intptr_t)qq__##_p]) || 1); qq__##_p = (_c*)(((intptr_t)qq__##_p) + 1))
+#define forvp_Vec(_c, _p, _v) if ((_v).n) for (_c *qq__##_p = (_c*)0, *_p = &(_v).v[0]; \
+                    ((intptr_t)(qq__##_p) < (_v).length()) && ((_p = &(_v).v[(intptr_t)qq__##_p]) || 1); qq__##_p = (_c*)(((intptr_t)qq__##_p) + 1))
+
+template <class C, class A = DefaultAlloc, int S = VEC_INTEGRAL_SHIFT_DEFAULT> class Accum { public:
+  Vec<C,A,S> asset;
+  Vec<C,A,S> asvec;
+  void add(C c) { if (asset.set_add(c)) asvec.add(c); }
+  void add(Vec<C,A,S> v) { for (int i = 0; i < v.n; i++) if (v.v[i]) add(v.v[i]); }
+  void clear() { asset.clear(); asvec.clear(); }
+};
+
+// Intervals store sets in interval format (e.g. [1..10][12..12]).
+// Inclusion test is by binary search on intervals.
+// Deletion is not supported
+class Intervals : public Vec<int> {
+ public:
+  void insert(int n);
+  bool in(int n) const;
+};
+
+// UnionFind supports fast unify and finding of
+// 'representitive elements'.
+// Elements are numbered from 0 to N-1.
+class UnionFind : public Vec<int> {
+ public:
+  // set number of elements, initialized to singletons, may be called repeatedly to increase size
+  void size(int n); 
+  // return representitive element
+  int find(int n);
+  // unify the sets containing the two elements
+  void unify(int n, int m);
+};
+
+extern const uintptr_t prime2[];
+extern const uintptr_t open_hash_primes[256];
+
+/* IMPLEMENTATION */
+
+template <class C, class A, int S> inline
+Vec<C,A,S>::Vec() : n(0), i(0), v(0) {
+  memset(&e[0], 0, sizeof(e));
+}
+
+template <class C, class A, int S> inline
+Vec<C,A,S>::Vec(const Vec<C,A,S> &vv) {
+  copy(vv);
+}
+
+template <class C, class A, int S> inline
+Vec<C,A,S>::Vec(C c) {
+  n = 1;
+  i = 0;
+  v = &e[0];
+  e[0] = c;
+}
+
+template <class C, class A, int S> inline C
+Vec<C,A,S>::get(size_t i) {
+  if (i < n && i >= 0)
+    return v[i];
+  else
+    return C();
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::add(C a) {
+  if (n & (VEC_INTEGRAL_SIZE-1))
+    v[n++] = a;
+  else if (!v)
+    (v = e)[n++] = a;
+  else
+    add_internal(a);
+}
+
+template <class C, class A, int S> inline C&
+Vec<C,A,S>::add() {
+  C *ret;
+  if (n & (VEC_INTEGRAL_SIZE-1))
+    ret = &v[n++];
+  else if (!v)
+    ret = &(v = e)[n++];
+  else
+    ret = &add_internal();
+  return *ret;
+}
+
+template <class C, class A, int S> inline C
+Vec<C,A,S>::pop() {
+  if (!n)
+    return 0;
+  n--;
+  C ret = v[n];
+  if (!n)
+    clear();
+  return ret;
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::set_clear() {
+  memset(v, 0, n * sizeof(C));
+}
+
+template <class C, class A, int S> inline C *
+Vec<C,A,S>::set_add(C a) {
+  if (n < SET_LINEAR_SIZE) {
+    for (C *c = v; c < v + n; c++)
+      if (*c == a)
+        return 0;
+    add(a);
+    return &v[n-1];
+  }
+  if (n == SET_LINEAR_SIZE) {
+    Vec<C,A,S> vv(*this);
+    clear();
+    for (C *c = vv.v; c < vv.v + vv.n; c++) {
+      set_add_internal(*c);
+    }
+  }
+  return set_add_internal(a);
+}
+
+template <class C, class A, int S> void
+Vec<C,A,S>::set_remove(C a) {
+  Vec<C,A,S> tmp;
+  tmp.move(*this);
+  for (C *c = tmp.v; c < tmp.v + tmp.n; c++)
+    if (*c != a)
+      set_add(a);
+}
+
+template <class C, class A, int S> inline size_t
+Vec<C,A,S>::count() const {
+  int x = 0;
+  for (C *c = v; c < v + n; c++)
+    if (*c)
+      x++;
+  return x;
+}
+
+template <class C, class A, int S> inline C*
+Vec<C,A,S>::in(C a) {
+  for (C *c = v; c < v + n; c++)
+    if (*c == a)
+      return c;
+  return NULL;
+}
+
+template <class C, class A, int S> inline bool
+Vec<C,A,S>::add_exclusive(C a) {
+  if (!in(a)) {
+    add(a);
+    return true;
+  } else 
+    return false;
+}
+
+template <class C, class A, int S> inline C *
+Vec<C,A,S>::set_in(C a) {
+  if (n <= SET_LINEAR_SIZE)
+    return in(a);
+  return set_in_internal(a);
+}
+
+template <class C, class A, int S> inline C
+Vec<C,A,S>::first_in_set() {
+  for (C *c = v; c < v + n; c++)
+    if (*c)
+      return *c;
+  return 0;
+}
+
+template <class C, class A, int S> inline ssize_t
+Vec<C,A,S>::index(C a) const {
+  for (C *c = v; c < v + n; c++) {
+    if (*c == a) {
+      return c - v;
+    }
+  }
+  return -1;
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::move_internal(Vec<C,A,S> &vv)  {
+  n = vv.n;
+  i = vv.i;
+  if (vv.v == &vv.e[0]) { 
+    memcpy(e, &vv.e[0], sizeof(e));
+    v = e;
+  } else
+    v = vv.v;
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::move(Vec<C,A,S> &vv)  {
+  move_internal(vv); 
+  vv.v = 0;
+  vv.clear();
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::copy(const Vec<C,A,S> &vv)  {
+  n = vv.n;
+  i = vv.i;
+  if (vv.v == &vv.e[0]) { 
+    memcpy(e, &vv.e[0], sizeof(e));
+    v = e;
+  } else {
+    if (vv.v) 
+      copy_internal(vv);
+    else
+      v = 0;
+  }
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::fill(size_t nn)  {
+  for (size_t i = n; i < nn; i++)
+    add() = 0;
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::append(const Vec<C> &vv)  {
+  for (C *c = vv.v; c < vv.v + vv.n; c++)
+    if (*c != 0)
+      add(*c);
+}
+
+template <class C, class A, int S>
+template <typename CountType>
+inline void
+Vec<C,A,S>::append(const C * src, CountType count)  {
+  reserve(length() + count);
+  for (CountType c = 0; c < count; ++c) {
+    add(src[c]);
+  }
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::prepend(const Vec<C> &vv)  {
+  if (vv.n) {
+    int oldn = n;
+    fill(n + vv.n);
+    if (oldn)
+      memmove(&v[vv.n], &v[0], oldn * sizeof(v[0]));
+    memcpy(&v[0], vv.v, vv.n * sizeof(v[0]));
+  }
+}
+
+template <class C, class A, int S> void 
+Vec<C,A,S>::add_internal(C a) {
+  addx();
+  v[n++] = a;
+}
+
+template <class C, class A, int S> C&
+Vec<C,A,S>::add_internal() {
+  addx();
+  return v[n++];
+}
+
+template <class C, class A, int S> C *
+Vec<C,A,S>::set_add_internal(C c) {
+  size_t j, k;
+  if (n) {
+    uintptr_t h = (uintptr_t)c;
+    h = h % n;
+    for (k = h, j = 0; j < i + 3; j++) {
+      if (!v[k]) {
+        v[k] = c;
+        return &v[k];
+      } else if (v[k] == c) {
+        return 0;
+      }
+      k = (k + open_hash_primes[j]) % n;
+    }
+  }
+  Vec<C,A,S> vv;
+  vv.move_internal(*this);
+  set_expand();
+  if (vv.v) {
+    set_union(vv);
+  }
+  return set_add(c);
+}
+
+template <class C, class A, int S> C *
+Vec<C,A,S>::set_in_internal(C c) {
+  size_t j, k;
+  if (n) {
+    uintptr_t h = (uintptr_t)c;
+    h = h % n;
+    for (k = h, j = 0; j < i + 3; j++) {
+      if (!v[k])
+        return 0;
+      else if (v[k] == c)
+        return &v[k];
+      k = (k + open_hash_primes[j]) % n;
+    }
+  }
+  return 0;
+}
+
+template <class C, class A, int S> bool
+Vec<C,A,S>::set_union(Vec<C,A,S> &vv) {
+  bool changed = false;
+  for (size_t i = 0; i < vv.n; i++) {
+    if (vv.v[i]) {
+      changed = set_add(vv.v[i]) || changed;
+    }
+  }
+  return changed;
+} 
+
+template <class C, class A, int S> int
+Vec<C,A,S>::set_intersection(Vec<C,A,S> &vv) {
+  Vec<C,A,S> tv;
+  tv.move(*this);
+  int changed = 0;
+  for (int i = 0; i < tv.n; i++)
+    if (tv.v[i]) {
+      if (vv.set_in(tv.v[i]))
+        set_add(tv.v[i]);
+      else
+        changed = 1;
+    }
+  return changed;
+} 
+
+template <class C, class A, int S> int
+Vec<C,A,S>::some_intersection(Vec<C,A,S> &vv) {
+  for (int i = 0; i < n; i++)
+    if (v[i])
+      if (vv.set_in(v[i]))
+        return 1;
+  return 0;
+} 
+
+template <class C, class A, int S> int
+Vec<C,A,S>::some_disjunction(Vec<C,A,S> &vv) {
+  for (int i = 0; i < n; i++)
+    if (v[i])
+      if (!vv.set_in(v[i]))
+        return 1;
+  for (int i = 0; i < vv.n; i++)
+    if (vv.v[i])
+      if (!set_in(vv.v[i]))
+        return 1;
+  return 0;
+} 
+
+template <class C, class A, int S> void
+Vec<C,A,S>::set_intersection(Vec<C,A,S> &vv, Vec<C,A,S> &result) {
+  for (int i = 0; i < n; i++)
+    if (v[i])
+      if (vv.set_in(v[i]))
+        result.set_add(v[i]);
+} 
+
+template <class C, class A, int S> void
+Vec<C,A,S>::set_disjunction(Vec<C,A,S> &vv, Vec<C,A,S> &result) {
+  for (int i = 0; i < n; i++)
+    if (v[i])
+      if (!vv.set_in(v[i]))
+        result.set_add(v[i]);
+  for (int i = 0; i < vv.n; i++)
+    if (vv.v[i])
+      if (!set_in(vv.v[i]))
+        result.set_add(vv.v[i]);
+} 
+
+template <class C, class A, int S> void
+Vec<C,A,S>::set_difference(Vec<C,A,S> &vv, Vec<C,A,S> &result) {
+  for (int i = 0; i < n; i++)
+    if (v[i])
+      if (!vv.set_in(v[i]))
+        result.set_add(v[i]);
+} 
+
+template <class C, class A, int S> int
+Vec<C,A,S>::some_difference(Vec<C,A,S> &vv) {
+  for (int i = 0; i < n; i++)
+    if (v[i])
+      if (!vv.set_in(v[i]))
+        return 1;
+  return 0;
+} 
+
+template <class C, class A, int S> size_t
+Vec<C,A,S>::set_count() const {
+  size_t x = 0;
+  for (size_t i = 0; i < n; i++) {
+    if (v[i]) {
+      x++;
+    }
+  }
+  return x;
+} 
+
+template <class C, class A, int S> void
+Vec<C,A,S>::set_to_vec() {
+  C *x = &v[0], *y = x;
+  for (; y < v + n; y++) {
+    if (*y) {
+      if (x != y)
+         *x = *y;
+       x++;
+    }
+  }
+  if (i) {
+    i = prime2[i];  // convert set allocation to reserve
+    if (i - n > 0)
+      memset(&v[n], 0, (i - n) * (sizeof(C)));
+  } else {
+    i = 0;
+    if (v == &e[0] && VEC_INTEGRAL_SIZE - n > 0)
+      memset(&v[n], 0, (VEC_INTEGRAL_SIZE - n) * (sizeof(C)));
+  }
+}
+
+template <class C, class A, int S> void
+Vec<C,A,S>::vec_to_set() {
+  Vec<C,A,S> vv;
+  vv.move(*this);
+  for (C *c = vv.v; c < vv.v + vv.n; c++)
+    set_add(*c);
+}
+
+template <class C, class A, int S> void 
+Vec<C,A,S>::remove_index(int index) {
+  if (n > 1)
+    memmove(&v[index], &v[index+1], (n - 1 - index) * sizeof(v[0]));
+  n--;
+  if (n <= 0)
+    v = e;
+}
+
+template <class C, class A, int S> void
+Vec<C,A,S>::insert(size_t index, C a) {
+  add();
+  memmove(&v[index+1], &v[index], (n - index - 1) * sizeof(C));
+  v[index] = a;
+}
+
+template <class C, class A, int S> void
+Vec<C,A,S>::insert(size_t index, Vec<C> &vv) {
+  fill(n + vv.n);
+  memmove(&v[index+vv.n], &v[index], (n - index - 1) * sizeof(C));
+  for (int x = 0; x < vv.n; x++)
+    v[index + x] = vv[x];
+}
+
+template <class C, class A, int S>  C &
+Vec<C,A,S>::insert(size_t index) {
+  add();
+  memmove(&v[index+1], &v[index], (n - index - 1) * sizeof(C));
+  memset(&v[index], 0, sizeof(C));
+  return v[index];
+}
+
+template <class C, class A, int S> void 
+Vec<C,A,S>::reverse() {
+  for (int i = 0; i < n/2; i++) {
+    C *s = &v[i], *e = &v[n - 1 - i];
+    C t;
+    memcpy(&t, s, sizeof(t));
+    memcpy(s, e, sizeof(t));
+    memcpy(e, &t, sizeof(t));
+  }
+}
+
+template <class C, class A, int S> void
+Vec<C,A,S>::copy_internal(const Vec<C,A,S> &vv) {
+  int l = n, nl = (1 + VEC_INITIAL_SHIFT);
+  l = l >> VEC_INITIAL_SHIFT;
+  while (l) { l = l >> 1; nl++; }
+  nl = 1 << nl;
+  v = (C*)A::alloc(nl * sizeof(C));
+  memcpy(v, vv.v, n * sizeof(C));
+  memset(v + n, 0, (nl - n) * sizeof(C)); 
+  if (i > n)  // reset reserve
+    i = 0;
+}
+
+template <class C, class A, int S> void
+Vec<C,A,S>::set_expand() {
+  if (!n)
+    i = SET_INITIAL_INDEX;
+  else
+    i = i + 1;
+  n = prime2[i];
+  v = (C*)A::alloc(n * sizeof(C));
+  memset(v, 0, n * sizeof(C));
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::reserve(size_t x) {
+  if (x <= n)
+    return;
+  unsigned xx = 1 << VEC_INITIAL_SHIFT;
+  while (xx < x) xx *= 2;
+  i = xx;
+  void *vv = (void*)v;
+  v = (C*)A::alloc(i * sizeof(C));
+  if (vv && n)
+    memcpy(v, vv, n * sizeof(C));
+  memset(&v[n], 0, (i-n) * sizeof(C));
+  if (vv && vv != e)
+    A::free(vv);
+}
+
+template <class C, class A, int S> inline void 
+Vec<C,A,S>::addx() {
+  if (!v) {
+    v = e;
+    return;
+  }
+  if (v == e) {
+    v = (C*)A::alloc(VEC_INITIAL_SIZE * sizeof(C));
+    memcpy(v, &e[0], n * sizeof(C));
+    ink_assert(n < VEC_INITIAL_SIZE);
+    memset(&v[n], 0, (VEC_INITIAL_SIZE - n) * sizeof(C));
+  } else {
+    if ((n & (n-1)) == 0) {
+      size_t nl = n * 2;
+      if (nl <= i) {
+        return;
+      } else {
+        i = 0;
+      }
+      void *vv = (void*)v;
+      v = (C*)A::alloc(nl * sizeof(C));
+      memcpy(v, vv, n * sizeof(C));
+      memset(&v[n], 0, n * sizeof(C));
+      A::free(vv);
+    }
+  }
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::reset() {
+  v = NULL;
+  n = 0;
+  i = 0;
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::clear() {
+  if (v && v != e) A::free(v);
+  reset();
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::free_and_clear() {
+  for (int x = 0; x < n; x++)
+    if (v[x])
+      A::free(v[x]);
+  clear();
+}
+
+template <class C, class A, int S> inline void
+Vec<C,A,S>::delete_and_clear() {
+  for (size_t x = 0; x < n; x++) {
+    if (v[x]) {
+      delete v[x];
+    }
+  }
+  clear();
+}
+
+template <class C, class A, int S> 
+inline Vec<C,A,S>::~Vec() { 
+  if (v && v != e) A::free(v); 
+}
+
+template <class C, class A, int S> 
+inline int marshal_size(Vec<C,A,S> &v) {
+  int l = sizeof(int) * 2;
+  for (int x = 0; x < v.n; x++)
+    l += ::marshal_size(v.v[x]);
+  return l;
+}
+
+template <class C, class A, int S> 
+inline int marshal(Vec<C,A,S> &v, char *buf) {
+  char *x = buf;
+  *(int*)x = v.n; x += sizeof(int);
+  *(int*)x = v.i; x += sizeof(int);
+  for (int i = 0; i < v.n; i++)
+    x += ::marshal(v.v[i], x);
+  return x - buf;
+}
+
+template <class C, class A, int S> 
+inline int unmarshal(Vec<C,A,S> &v, char *buf) {
+  char *x = buf;
+  v.n = *(int*)x; x += sizeof(int);
+  v.i = *(int*)x; x += sizeof(int);
+  if (v.n) {
+    v.v = (C*)A::alloc(sizeof(C) * v.n);
+    memset(v.v, 0, sizeof(C) * v.n);
+  } else
+    v.v = v.e;
+  for (int i = 0; i < v.n; i++)
+    x += ::unmarshal(v.v[i], x);
+  return x - buf;
+}
+
+template <class C, class A, int S> 
+inline int Vec<C,A,S>::write(int fd) {
+  int r = 0, t = 0;
+  if ((r = ::write(fd, this, sizeof(*this))) < 0) return r; t += r;
+  if ((r = ::write(fd, v, n * sizeof(C))) < 0) return r; t += r;
+  return t;
+}
+
+template <class C, class A, int S> 
+inline int Vec<C,A,S>::read(int fd) {
+  int r = 0, t = 0;
+  if ((r = ::read(fd, this, sizeof(*this))) < 0) return r; t += r;
+  v = (C*)A::alloc(sizeof(C) * n);
+  memset(v, 0, sizeof(C) * n);
+  if ((r = ::read(fd, v, n * sizeof(C))) < 0) return r; t += r;
+  return t;
+}
+
+template <class C> 
+inline void qsort_Vec(C *left, C *right, bool (*lt)(C,C)) {
+ Lagain:
+  if (right - left < 5) {
+    for (C *y = right - 1; y > left; y--) {
+      for (C *x = left; x < y; x++) {
+        if (lt(x[1],x[0])) {
+          C t = x[0];
+          x[0] = x[1];
+          x[1] = t;
+        }
+      }
+    }
+  } else {
+    C  *i = left + 1, *j = right - 1;
+    C x = *left;
+    for (;;) {
+      while (lt(x,*j)) j--;
+      while (i < j && lt(*i,x)) i++;
+      if (i >= j) break;
+      C t = *i;
+      *i = *j;
+      *j = t;
+      i++; j--;
+    }
+    if (j == right - 1) {
+      *left = *(right - 1);
+      *(right - 1) = x;
+      right--;
+      goto Lagain;
+    }
+    if (left < j) qsort_Vec<C>(left, j + 1, lt);
+    if (j + 2 < right) qsort_Vec<C>(j + 1, right, lt);
+  }
+}
+
+template <class C> 
+inline void qsort_VecRef(C *left, C *right, bool (*lt)(C&,C&)) {
+ Lagain:
+  if (right - left < 5) {
+    for (C *y = right - 1; y > left; y--) {
+      for (C *x = left; x < y; x++) {
+        if (lt(x[1],x[0])) {
+          C t = x[0];
+          x[0] = x[1];
+          x[1] = t;
+        }
+      }
+    }
+  } else {
+    C  *i = left + 1, *j = right - 1;
+    C x = *left;
+    for (;;) {
+      while (lt(x,*j)) j--;
+      while (i < j && lt(*i,x)) i++;
+      if (i >= j) break;
+      C t = *i;
+      *i = *j;
+      *j = t;
+      i++; j--;
+    }
+    if (j == right - 1) {
+      *left = *(right - 1);
+      *(right - 1) = x;
+      right--;
+      goto Lagain;
+    }
+    if (left < j) qsort_VecRef<C>(left, j + 1, lt);
+    if (j + 2 < right) qsort_VecRef<C>(j + 1, right, lt);
+  }
+}
+
+template <class C, class A, int S> 
+inline void Vec<C,A,S>::qsort(bool (*lt)(C,C)) {
+  if (n)
+    qsort_Vec<C>(&v[0], end(), lt);
+}
+
+void test_vec();
+
+#endif
diff --git a/lib/ts/Version.cc b/lib/ts/Version.cc
new file mode 100644
index 00000000..01dfa0b5
--- /dev/null
+++ b/lib/ts/Version.cc
@@ -0,0 +1,108 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+AppVersionInfo::AppVersionInfo()
+{
+  defined = 0;
+  ink_strlcpy(PkgStr, "?", sizeof(PkgStr));
+  ink_strlcpy(AppStr, "?", sizeof(AppStr));
+  ink_strlcpy(VersionStr, "?", sizeof(VersionStr));
+  ink_strlcpy(BldNumStr, "?", sizeof(BldNumStr));
+  ink_strlcpy(BldTimeStr, "?", sizeof(BldTimeStr));
+  ink_strlcpy(BldDateStr, "?", sizeof(BldDateStr));
+  ink_strlcpy(BldMachineStr, "?", sizeof(BldMachineStr));
+  ink_strlcpy(BldPersonStr, "?", sizeof(BldPersonStr));
+  ink_strlcpy(BldCompileFlagsStr, "?", sizeof(BldCompileFlagsStr));
+  ink_strlcpy(FullVersionInfoStr, "?", sizeof(FullVersionInfoStr));
+  // coverity[uninit_member]
+}
+
+
+void
+AppVersionInfo::setup(const char *pkg_name, const char *app_name, const char *app_version,
+                      const char *build_date, const char *build_time, const char *build_machine,
+                      const char *build_person, const char *build_cflags)
+{
+  char month_name[8];
+  int year, month, day, hour, minute, second;
+
+  static const char *months[] = {
+    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", "???"
+  };
+
+  // coverity[secure_coding]
+  sscanf(build_time, "%d:%d:%d", &hour, &minute, &second);
+  // coverity[secure_coding]
+  sscanf(build_date, "%3s %d %d", month_name, &day, &year);
+
+  for (month = 0; month < 11; month++) {
+    if (strcasecmp(months[month], month_name) == 0)
+      break;
+  }
+
+  ///////////////////////////////////////////
+  // now construct the version information //
+  ///////////////////////////////////////////
+  ink_strlcpy(PkgStr, pkg_name, sizeof(PkgStr));
+  ink_strlcpy(AppStr, app_name, sizeof(AppStr));
+  snprintf(VersionStr, sizeof(VersionStr), "%s", app_version);
+  snprintf(BldNumStr, sizeof(BldNumStr), "%d%d%d", month, day, hour);
+  snprintf(BldTimeStr, sizeof(BldTimeStr), "%s", build_time);
+  snprintf(BldDateStr, sizeof(BldDateStr), "%s", build_date);
+  snprintf(BldMachineStr, sizeof(BldMachineStr), "%s", build_machine);
+  snprintf(BldPersonStr, sizeof(BldPersonStr), "%s", build_person);
+  snprintf(BldCompileFlagsStr, sizeof(BldCompileFlagsStr), "%s", build_cflags);
+
+  snprintf(FullVersionInfoStr, sizeof(FullVersionInfoStr),
+           "%s - %s - %s - (build # %d%d%d on %s at %s)",
+           PkgStr, AppStr, VersionStr, month, day, hour, build_date, build_time);
+
+  /////////////////////////////////////////////////////////////
+  // the manager doesn't like empty strings, so prevent them //
+  /////////////////////////////////////////////////////////////
+  if (PkgStr[0] == '\0')
+    ink_strlcpy(PkgStr, "?", sizeof(PkgStr));
+  if (AppStr[0] == '\0')
+    ink_strlcpy(AppStr, "?", sizeof(AppStr));
+  if (VersionStr[0] == '\0')
+    ink_strlcpy(VersionStr, "?", sizeof(VersionStr));
+  if (BldNumStr[0] == '\0')
+    ink_strlcpy(BldNumStr, "?", sizeof(BldNumStr));
+  if (BldTimeStr[0] == '\0')
+    ink_strlcpy(BldTimeStr, "?", sizeof(BldTimeStr));
+  if (BldDateStr[0] == '\0')
+    ink_strlcpy(BldDateStr, "?", sizeof(BldDateStr));
+  if (BldMachineStr[0] == '\0')
+    ink_strlcpy(BldMachineStr, "?", sizeof(BldMachineStr));
+  if (BldPersonStr[0] == '\0')
+    ink_strlcpy(BldPersonStr, "?", sizeof(BldPersonStr));
+  if (BldCompileFlagsStr[0] == '\0')
+    ink_strlcpy(BldCompileFlagsStr, "?", sizeof(BldCompileFlagsStr));
+  if (FullVersionInfoStr[0] == '\0')
+    ink_strlcpy(FullVersionInfoStr, "?", sizeof(FullVersionInfoStr));
+
+  defined = 1;
+}
diff --git a/lib/ts/apidefs.h.in b/lib/ts/apidefs.h.in
new file mode 100644
index 00000000..130b91bf
--- /dev/null
+++ b/lib/ts/apidefs.h.in
@@ -0,0 +1,1160 @@
+/** @file
+
+  This header file defines common types that can be shared
+  between internal code and TS APIs.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section developers Developers
+
+  Developers, when adding a new element to an enum, append it. DO NOT
+  insert it.  Otherwise, binary compatibility of plugins will be broken!
+
+ */
+
+#ifndef __TS_TYPES_H__
+#define __TS_TYPES_H__
+
+/*
+ * ATS Plugin just needs to include <ts/ts.h>,
+ * should not include this file directly!
+ *
+ */
+
+/* GENERATED FILE WARNING!  DO NOT EDIT apidefs.h
+ *
+ * You must modify apidefs.h.in instead.
+ *
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#ifndef tsapi
+#define tsapi
+#endif
+
+#if !defined(TS_PRINTFLIKE)
+#if defined(__GNUC__) || defined(__clang__)
+#define TS_PRINTFLIKE(fmt, arg) __attribute__((format(printf, fmt, arg)))
+#else
+#define TS_PRINTFLIKE(fmt, arg)
+#endif
+#endif
+
+#if !defined(TS_NORETURN)
+#if defined(__GNUC__) || defined(__clang__)
+#define TS_NORETURN __attribute__((noreturn))
+#else
+#define TS_NORETURN
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+  /* Version info
+   */
+#define TS_VERSION_STRING             "@TS_VERSION_STRING@"
+#define TS_VERSION_NUMBER              @TS_VERSION_NUMBER@
+#define TS_VERSION_MAJOR               @TS_VERSION_MAJOR@
+#define TS_VERSION_MINOR               @TS_VERSION_MINOR@
+#define TS_VERSION_MICRO               @TS_VERSION_MICRO@
+
+#define TS_HTTP_VERSION(a,b)  ((((a) & 0xFFFF) << 16) | ((b) & 0xFFFF))
+#define TS_HTTP_MINOR(v)      ((v) & 0xFFFF)
+#define TS_HTTP_MAJOR(v)      (((v) >> 16) & 0xFFFF)
+#define __TS_RES_PATH(x)   #x
+#define _TS_RES_PATH(x)    __TS_RES_PATH (x)
+#define TS_RES_PATH(x)     x __FILE__ ":" _TS_RES_PATH (__LINE__)
+#define TS_RES_MEM_PATH    TS_RES_PATH ("memory/")
+#define TS_MAX_USER_NAME_LEN 256
+
+#ifndef TS_DEPRECATED
+#define TS_DEPRECATED __attribute__ ((deprecated))
+#endif
+
+  /**
+      The following struct is used by TSPluginRegister(). It stores
+      registration information about the plugin.
+
+   */
+  typedef struct
+  {
+    char* plugin_name;
+    char* vendor_name;
+    char* support_email;
+  } TSPluginRegistrationInfo;
+
+  /**
+      This set of enums are possible values returned by
+      TSHttpHdrParseReq() and TSHttpHdrParseResp().
+
+   */
+  typedef enum
+  {
+    TS_PARSE_ERROR = -1,
+    TS_PARSE_DONE = 0,
+    TS_PARSE_OK = 1,
+    TS_PARSE_CONT = 2
+  } TSParseResult;
+
+  /**
+      This set of enums represents the possible HTTP types that
+      can be assigned to an HTTP header. When a header is created
+      with TSHttpHdrCreate(), it is automatically assigned a type of
+      TS_HTTP_TYPE_UNKNOWN. You can modify the HTTP type ONCE after it
+      the header is created, using TSHttpHdrTypeSet(). After setting the
+      HTTP type once, you cannot set it again. Use TSHttpHdrTypeGet()
+      to obtain the TSHttpType of an HTTP header.
+
+   */
+  typedef enum
+  {
+    TS_HTTP_TYPE_UNKNOWN,
+    TS_HTTP_TYPE_REQUEST,
+    TS_HTTP_TYPE_RESPONSE
+  } TSHttpType;
+
+  /**
+      This set of enums represents possible return values from
+      TSHttpHdrStatusGet(), which retrieves the status code from an
+      HTTP response header (TSHttpHdrStatusGet() retrieves status codes
+      only from headers of type TS_HTTP_TYPE_RESPONSE). You can also set
+      the TSHttpStatus of a response header using TSHttpHdrStatusSet().
+
+   */
+  typedef enum
+  {
+    TS_HTTP_STATUS_NONE = 0,
+
+    TS_HTTP_STATUS_CONTINUE = 100,
+    TS_HTTP_STATUS_SWITCHING_PROTOCOL = 101,
+
+    TS_HTTP_STATUS_OK = 200,
+    TS_HTTP_STATUS_CREATED = 201,
+    TS_HTTP_STATUS_ACCEPTED = 202,
+    TS_HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
+    TS_HTTP_STATUS_NO_CONTENT = 204,
+    TS_HTTP_STATUS_RESET_CONTENT = 205,
+    TS_HTTP_STATUS_PARTIAL_CONTENT = 206,
+    TS_HTTP_STATUS_MULTI_STATUS = 207,
+    TS_HTTP_STATUS_ALREADY_REPORTED = 208,
+    TS_HTTP_STATUS_IM_USED = 211,
+
+    TS_HTTP_STATUS_MULTIPLE_CHOICES = 300,
+    TS_HTTP_STATUS_MOVED_PERMANENTLY = 301,
+    TS_HTTP_STATUS_MOVED_TEMPORARILY = 302,
+    TS_HTTP_STATUS_SEE_OTHER = 303,
+    TS_HTTP_STATUS_NOT_MODIFIED = 304,
+    TS_HTTP_STATUS_USE_PROXY = 305,
+    TS_HTTP_STATUS_TEMPORARY_REDIRECT = 307,
+    TS_HTTP_STATUS_PERMANENT_REDIRECT = 308,
+
+    TS_HTTP_STATUS_BAD_REQUEST = 400,
+    TS_HTTP_STATUS_UNAUTHORIZED = 401,
+    TS_HTTP_STATUS_PAYMENT_REQUIRED = 402,
+    TS_HTTP_STATUS_FORBIDDEN = 403,
+    TS_HTTP_STATUS_NOT_FOUND = 404,
+    TS_HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
+    TS_HTTP_STATUS_NOT_ACCEPTABLE = 406,
+    TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
+    TS_HTTP_STATUS_REQUEST_TIMEOUT = 408,
+    TS_HTTP_STATUS_CONFLICT = 409,
+    TS_HTTP_STATUS_GONE = 410,
+    TS_HTTP_STATUS_LENGTH_REQUIRED = 411,
+    TS_HTTP_STATUS_PRECONDITION_FAILED = 412,
+    TS_HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
+    TS_HTTP_STATUS_REQUEST_URI_TOO_LONG = 414,
+    TS_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
+    TS_HTTP_STATUS_REQUESTED_RANGE_NOT_SATISFIABLE = 416,
+    TS_HTTP_STATUS_EXPECTATION_FAILED = 417,
+    TS_HTTP_STATUS_UNPROCESSABLE_ENTITY = 422,
+    TS_HTTP_STATUS_LOCKED = 423,
+    TS_HTTP_STATUS_FAILED_DEPENDENCY = 424,
+    TS_HTTP_STATUS_UPGRADE_REQUIRED = 426,
+    TS_HTTP_STATUS_PRECONDITION_REQUIRED = 428,
+    TS_HTTP_STATUS_TOO_MANY_REQUESTS = 429,
+    TS_HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
+
+    TS_HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
+    TS_HTTP_STATUS_NOT_IMPLEMENTED = 501,
+    TS_HTTP_STATUS_BAD_GATEWAY = 502,
+    TS_HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
+    TS_HTTP_STATUS_GATEWAY_TIMEOUT = 504,
+    TS_HTTP_STATUS_HTTPVER_NOT_SUPPORTED = 505,
+    TS_HTTP_STATUS_VARIANT_ALSO_NEGOTIATES = 506,
+    TS_HTTP_STATUS_INSUFFICIENT_STORAGE = 507,
+    TS_HTTP_STATUS_LOOP_DETECTED = 508,
+    TS_HTTP_STATUS_NOT_EXTENDED = 510,
+    TS_HTTP_STATUS_NETWORK_AUTHENTICATION_REQUIRED = 511
+
+  } TSHttpStatus;
+
+  /**
+      This set of enums represents the possible hooks where you can
+      set up continuation callbacks. The functions used to register a
+      continuation for a particular hook are:
+
+      TSHttpHookAdd: adds a global hook. You can globally add
+      any hook except for
+       - TS_HTTP_REQUEST_TRANSFORM_HOOK
+       - TS_HTTP_RESPONSE_TRANSFORM_HOOK
+       - TS_HTTP_RESPONSE_CLIENT_HOOK
+
+      The following hooks can ONLY be added globally:
+       - TS_HTTP_SELECT_ALT_HOOK
+       - TS_HTTP_SSN_START_HOOK
+       - TS_HTTP_SSN_CLOSE_HOOK
+
+      TSHttpSsnHookAdd: adds a transaction hook to each transaction
+      within a session. You can only use transaction hooks with this call:
+       - TS_HTTP_READ_REQUEST_HDR_HOOK
+       - TS_HTTP_OS_DNS_HOOK
+       - TS_HTTP_SEND_REQUEST_HDR_HOOK
+       - TS_HTTP_READ_CACHE_HDR_HOOK
+       - TS_HTTP_READ_RESPONSE_HDR_HOOK
+       - TS_HTTP_SEND_RESPONSE_HDR_HOOK
+       - TS_HTTP_REQUEST_TRANSFORM_HOOK
+       - TS_HTTP_RESPONSE_TRANSFORM_HOOK
+       - TS_HTTP_RESPONSE_CLIENT_HOOK
+       - TS_HTTP_TXN_START_HOOK
+       - TS_HTTP_TXN_CLOSE_HOOK
+
+      TSHttpTxnHookAdd: adds a callback at a specific point within
+      an HTTP transaction. The following hooks can be used with this
+      function:
+       - TS_HTTP_READ_REQUEST_HDR_HOOK
+       - TS_HTTP_OS_DNS_HOOK
+       - TS_HTTP_SEND_REQUEST_HDR_HOOK
+       - TS_HTTP_READ_CACHE_HDR_HOOK
+       - TS_HTTP_READ_RESPONSE_HDR_HOOK
+       - TS_HTTP_SEND_RESPONSE_HDR_HOOK
+       - TS_HTTP_REQUEST_TRANSFORM_HOOK
+       - TS_HTTP_RESPONSE_TRANSFORM_HOOK
+       - TS_HTTP_TXN_CLOSE_HOOK
+
+      The two transform hooks can ONLY be added as transaction hooks.
+
+      TS_HTTP_LAST_HOOK _must_ be the last element. Only right place
+      to insert a new element is just before TS_HTTP_LAST_HOOK.
+
+   */
+  typedef enum
+  {
+    TS_HTTP_READ_REQUEST_HDR_HOOK,
+    TS_HTTP_OS_DNS_HOOK,
+    TS_HTTP_SEND_REQUEST_HDR_HOOK,
+    TS_HTTP_READ_CACHE_HDR_HOOK,
+    TS_HTTP_READ_RESPONSE_HDR_HOOK,
+    TS_HTTP_SEND_RESPONSE_HDR_HOOK,
+    TS_HTTP_REQUEST_TRANSFORM_HOOK,
+    TS_HTTP_RESPONSE_TRANSFORM_HOOK,
+    TS_HTTP_SELECT_ALT_HOOK,
+    TS_HTTP_TXN_START_HOOK,
+    TS_HTTP_TXN_CLOSE_HOOK,
+    TS_HTTP_SSN_START_HOOK,
+    TS_HTTP_SSN_CLOSE_HOOK,
+    TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK,
+    TS_HTTP_PRE_REMAP_HOOK,
+    TS_HTTP_POST_REMAP_HOOK,
+    TS_HTTP_RESPONSE_CLIENT_HOOK,
+    TS_HTTP_LAST_HOOK
+  } TSHttpHookID;
+  #define TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK TS_HTTP_PRE_REMAP_HOOK  /* backwards compat */
+
+  /** Plugin lifecycle hooks.
+
+      These are called during lifecycle events of a plugin. They
+      should be set in the plugin initialization function. The
+      continuation is invoked with an event ID specified for each hook
+      and @c NULL for the event data.
+
+      TS_LIFECYCLE_PORTS_INITIALIZED_HOOK
+
+        called once, after the HTTP proxy port data structures have
+        been initialized. In particular, SSL related calls that depend
+        on accept endpoints may be invoked. After this hook is
+        finished, the proxy port sockets are opened and connections
+        are accepted.
+
+        Event: TS_EVENT_LIFECYCLE_PORTS_INITIALIZED
+
+      TS_LIFECYCLE_PORTS_READY_HOOK
+
+        called once, after the sockets have been opened and the accept
+        threads have been started. That is, the ports are ready to
+        accept connections. This is *not* guaranteed to be called
+        before the first connection is accepted.
+
+        Event: TS_EVENT_LIFECYCLE_PORTS_READY_HOOK
+
+      TS_LIFECYCLE_CACHE_READY_HOOK
+
+        called once, after the cache has finished its
+        initialization. It is either online or has failed when this
+        hook is called.
+
+        Event: TS_EVENT_LIFECYCLE_CACHE_READY
+
+      TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK
+
+        called every time after a server SSL_CTX has finished the initialization.
+        It exposes the initialized SSL_CTX pointer.
+
+        Event: TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED
+
+      TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK
+
+        called once, after the client SSL_CTX has finished the initialization.
+        It exposes the initialized SSL_CTX pointer.
+
+        Event: TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED
+
+      Ordering guarantees:
+
+      - TS_LIFECYCLE_PORTS_INITIALIZED_HOOK before TS_LIFECYCLE_PORTS_READY_HOOK.
+
+      NOTE! ONLY the orderings EXPLICITLY mentioned above are guaranteed.
+      
+   */
+  typedef enum
+  {
+    TS_LIFECYCLE_PORTS_INITIALIZED_HOOK,
+    TS_LIFECYCLE_PORTS_READY_HOOK,
+    TS_LIFECYCLE_CACHE_READY_HOOK,
+    TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK,
+    TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK,
+    TS_LIFECYCLE_LAST_HOOK
+  } TSLifecycleHookID;
+
+  /**
+      TSEvents are sent to continuations when they are called back.
+      The TSEvent provides the continuation's handler function with
+      information about the callback. Based on the event it receives,
+      the handler function can decide what to do.
+
+   */
+  typedef enum
+  {
+    TS_EVENT_NONE = 0,
+    TS_EVENT_IMMEDIATE = 1,
+    TS_EVENT_TIMEOUT = 2,
+    TS_EVENT_ERROR = 3,
+    TS_EVENT_CONTINUE = 4,
+
+    TS_EVENT_VCONN_READ_READY = 100,
+    TS_EVENT_VCONN_WRITE_READY = 101,
+    TS_EVENT_VCONN_READ_COMPLETE = 102,
+    TS_EVENT_VCONN_WRITE_COMPLETE = 103,
+    TS_EVENT_VCONN_EOS = 104,
+    TS_EVENT_VCONN_INACTIVITY_TIMEOUT = 105,
+
+    TS_EVENT_NET_CONNECT = 200,
+    TS_EVENT_NET_CONNECT_FAILED = 201,
+    TS_EVENT_NET_ACCEPT = 202,
+    TS_EVENT_NET_ACCEPT_FAILED = 204,
+
+    /* EVENTS 206 - 212 for internal use */
+    TS_EVENT_INTERNAL_206 = 206,
+    TS_EVENT_INTERNAL_207 = 207,
+    TS_EVENT_INTERNAL_208 = 208,
+    TS_EVENT_INTERNAL_209 = 209,
+    TS_EVENT_INTERNAL_210 = 210,
+    TS_EVENT_INTERNAL_211 = 211,
+    TS_EVENT_INTERNAL_212 = 212,
+
+    TS_EVENT_HOST_LOOKUP = 500,
+    TS_EVENT_CACHE_OPEN_READ = 1102,
+    TS_EVENT_CACHE_OPEN_READ_FAILED = 1103,
+    TS_EVENT_CACHE_OPEN_WRITE = 1108,
+    TS_EVENT_CACHE_OPEN_WRITE_FAILED = 1109,
+    TS_EVENT_CACHE_REMOVE = 1112,
+    TS_EVENT_CACHE_REMOVE_FAILED = 1113,
+    TS_EVENT_CACHE_SCAN = 1120,
+    TS_EVENT_CACHE_SCAN_FAILED = 1121,
+    TS_EVENT_CACHE_SCAN_OBJECT = 1122,
+    TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED = 1123,
+    TS_EVENT_CACHE_SCAN_OPERATION_FAILED = 1124,
+    TS_EVENT_CACHE_SCAN_DONE = 1125,
+
+    TS_EVENT_CACHE_LOOKUP = 1126,
+    TS_EVENT_CACHE_READ = 1127,
+    TS_EVENT_CACHE_DELETE = 1128,
+    TS_EVENT_CACHE_WRITE = 1129,
+    TS_EVENT_CACHE_WRITE_HEADER = 1130,
+    TS_EVENT_CACHE_CLOSE = 1131,
+    TS_EVENT_CACHE_LOOKUP_READY = 1132,
+    TS_EVENT_CACHE_LOOKUP_COMPLETE = 1133,
+    TS_EVENT_CACHE_READ_READY = 1134,
+    TS_EVENT_CACHE_READ_COMPLETE = 1135,
+
+    /* EVENT 1200 for internal use */
+    TS_EVENT_INTERNAL_1200 = 1200,
+
+    /* EVENT 3900 is corresponding to event AIO_EVENT_DONE defined in I_AIO.h */
+    TS_AIO_EVENT_DONE = 3900,
+
+    TS_EVENT_HTTP_CONTINUE = 60000,
+    TS_EVENT_HTTP_ERROR = 60001,
+    TS_EVENT_HTTP_READ_REQUEST_HDR = 60002,
+    TS_EVENT_HTTP_OS_DNS = 60003,
+    TS_EVENT_HTTP_SEND_REQUEST_HDR = 60004,
+    TS_EVENT_HTTP_READ_CACHE_HDR = 60005,
+    TS_EVENT_HTTP_READ_RESPONSE_HDR = 60006,
+    TS_EVENT_HTTP_SEND_RESPONSE_HDR = 60007,
+    TS_EVENT_HTTP_REQUEST_TRANSFORM = 60008,
+    TS_EVENT_HTTP_RESPONSE_TRANSFORM = 60009,
+    TS_EVENT_HTTP_SELECT_ALT = 60010,
+    TS_EVENT_HTTP_TXN_START = 60011,
+    TS_EVENT_HTTP_TXN_CLOSE = 60012,
+    TS_EVENT_HTTP_SSN_START = 60013,
+    TS_EVENT_HTTP_SSN_CLOSE = 60014,
+    TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE = 60015,
+    TS_EVENT_HTTP_PRE_REMAP = 60016,
+    TS_EVENT_HTTP_POST_REMAP = 60017,
+    TS_EVENT_LIFECYCLE_PORTS_INITIALIZED = 60018,
+    TS_EVENT_LIFECYCLE_PORTS_READY = 60019,
+    TS_EVENT_LIFECYCLE_CACHE_READY = 60020,
+    TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED = 60021,
+    TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED = 60022,
+    TS_EVENT_MGMT_UPDATE = 60100,
+
+    /* EVENTS 60200 - 60202 for internal use */
+    TS_EVENT_INTERNAL_60200 = 60200,
+    TS_EVENT_INTERNAL_60201 = 60201,
+    TS_EVENT_INTERNAL_60202 = 60202
+  } TSEvent;
+  #define TS_EVENT_HTTP_READ_REQUEST_PRE_REMAP TS_EVENT_HTTP_PRE_REMAP /* backwards compat */
+
+  typedef enum
+  { TS_SRVSTATE_STATE_UNDEFINED = 0,
+    TS_SRVSTATE_ACTIVE_TIMEOUT,
+    TS_SRVSTATE_BAD_INCOMING_RESPONSE,
+    TS_SRVSTATE_CONNECTION_ALIVE,
+    TS_SRVSTATE_CONNECTION_CLOSED,
+    TS_SRVSTATE_CONNECTION_ERROR,
+    TS_SRVSTATE_INACTIVE_TIMEOUT,
+    TS_SRVSTATE_OPEN_RAW_ERROR,
+    TS_SRVSTATE_PARSE_ERROR,
+    TS_SRVSTATE_TRANSACTION_COMPLETE,
+    TS_SRVSTATE_CONGEST_CONTROL_CONGESTED_ON_F,
+    TS_SRVSTATE_CONGEST_CONTROL_CONGESTED_ON_M
+  } TSServerState;
+
+  typedef enum
+  {
+    TS_LOOKUP_UNDEFINED_LOOKUP,
+    TS_LOOKUP_ICP_SUGGESTED_HOST,
+    TS_LOOKUP_PARENT_PROXY,
+    TS_LOOKUP_ORIGIN_SERVER,
+    TS_LOOKUP_INCOMING_ROUTER,
+    TS_LOOKUP_HOST_NONE
+  } TSLookingUpType;
+
+  typedef enum
+  {
+    TS_CACHE_LOOKUP_MISS,
+    TS_CACHE_LOOKUP_HIT_STALE,
+    TS_CACHE_LOOKUP_HIT_FRESH,
+    TS_CACHE_LOOKUP_SKIPPED
+  } TSCacheLookupResult;
+
+  typedef enum
+  {
+    TS_CACHE_DATA_TYPE_NONE,
+    TS_CACHE_DATA_TYPE_HTTP,
+    TS_CACHE_DATA_TYPE_OTHER
+  } TSCacheDataType;
+
+  typedef enum
+  {
+    TS_CACHE_ERROR_NO_DOC = -20400,
+    TS_CACHE_ERROR_DOC_BUSY = -20401,
+    TS_CACHE_ERROR_NOT_READY = -20407
+  } TSCacheError;
+
+  typedef enum
+  {
+    TS_CACHE_SCAN_RESULT_DONE = 0,
+    TS_CACHE_SCAN_RESULT_CONTINUE = 1,
+    TS_CACHE_SCAN_RESULT_DELETE = 10,
+    TS_CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES,
+    TS_CACHE_SCAN_RESULT_UPDATE,
+    TS_CACHE_SCAN_RESULT_RETRY
+  } TSCacheScanResult;
+
+  typedef enum
+  {
+    TS_VC_CLOSE_ABORT = -1,
+    TS_VC_CLOSE_NORMAL = 1
+  } TSVConnCloseFlags;
+
+  typedef enum
+  {
+    TS_IOBUFFER_SIZE_INDEX_128 = 0,
+    TS_IOBUFFER_SIZE_INDEX_256 = 1,
+    TS_IOBUFFER_SIZE_INDEX_512 = 2,
+    TS_IOBUFFER_SIZE_INDEX_1K = 3,
+    TS_IOBUFFER_SIZE_INDEX_2K = 4,
+    TS_IOBUFFER_SIZE_INDEX_4K = 5,
+    TS_IOBUFFER_SIZE_INDEX_8K = 6,
+    TS_IOBUFFER_SIZE_INDEX_16K = 7,
+    TS_IOBUFFER_SIZE_INDEX_32K = 8
+  } TSIOBufferSizeIndex;
+
+  /**
+      Starting 2.0, SDK now follows same versioning as Traffic Server.
+   */
+  typedef enum
+  {
+    TS_SDK_VERSION_2_0 = 0,
+    TS_SDK_VERSION_3_0
+  } TSSDKVersion;
+
+  typedef enum
+  {
+    TS_ERROR = -1,
+    TS_SUCCESS = 0
+  } TSReturnCode;
+
+  typedef enum
+  {
+    NO_CALLBACK = 0,
+    AFTER_HEADER ,
+    AFTER_BODY
+  } TSFetchWakeUpOptions;
+
+#ifndef _HTTP_PROXY_API_ENUMS_H_
+#define _HTTP_PROXY_API_ENUMS_H_
+  /// Server session sharing values - match
+  /// Must be identical to definition in HttpProxyAPIEnums.h
+  typedef enum
+  {
+    TS_SERVER_SESSION_SHARING_MATCH_NONE,
+    TS_SERVER_SESSION_SHARING_MATCH_BOTH,
+    TS_SERVER_SESSION_SHARING_MATCH_IP,
+    TS_SERVER_SESSION_SHARING_MATCH_HOST
+  } TSServerSessionSharingMatchType;
+
+  /// Server session sharing values - pool
+  /// Must be identical to definition in HttpProxyAPIEnums.h
+  typedef enum
+  {
+    TS_SERVER_SESSION_SHARING_POOL_GLOBAL,
+    TS_SERVER_SESSION_SHARING_POOL_THREAD
+  } TSServerSessionSharingPoolType;
+#endif
+
+  /* librecords types */
+
+  /* The values of this enum must match enum RecT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDTYPE_NULL        = 0x00,
+      TS_RECORDTYPE_CONFIG      = 0x01,
+      TS_RECORDTYPE_PROCESS     = 0x02,
+      TS_RECORDTYPE_NODE        = 0x04,
+      TS_RECORDTYPE_CLUSTER     = 0x08,
+      TS_RECORDTYPE_LOCAL       = 0x10,
+      TS_RECORDTYPE_PLUGIN      = 0x20,
+      TS_RECORDTYPE_ALL         = 0x3F
+    } TSRecordType;
+
+  /* The values of this enum must match enum RecDataT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDDATATYPE_NULL = 0,
+      TS_RECORDDATATYPE_INT,
+      TS_RECORDDATATYPE_FLOAT,
+      TS_RECORDDATATYPE_STRING,
+      TS_RECORDDATATYPE_COUNTER,
+      TS_RECORDDATATYPE_STAT_CONST,
+      TS_RECORDDATATYPE_STAT_FX,
+      TS_RECORDDATATYPE_MAX
+    } TSRecordDataType;
+
+  typedef union
+  {
+    int64_t rec_int;
+    float rec_float;
+    char* rec_string;
+    int64_t rec_counter;
+  } TSRecordData;
+
+  /* The values of this enum must match enum RecPersistT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDP_NULL,
+      TS_RECORDP_PERSISTENT,
+      TS_RECORDP_NON_PERSISTENT
+    } TSRecordPersistType;
+
+  /* The values of this enum must match enum RecUpdateT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDUPDATE_NULL,
+      TS_RECORDUPDATE_DYNAMIC,
+      TS_RECORDUPDATE_RESTART_TS,
+      TS_RECORDUPDATE_RESTART_TM,
+      TS_RECORDUPDATE_RESTART_TC
+    } TSRecordUpdateType;
+
+  /* The values of this enum must match enum RecCheckT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDCHECK_NULL,
+      TS_RECORDCHECK_STR,
+      TS_RECORDCHECK_INT,
+      TS_RECORDCHECK_IP
+    } TSRecordCheckType;
+
+  /* The values of this enum must match enum RecModeT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDMODE_NULL,
+      TS_RECORDMODE_CLIENT,
+      TS_RECORDMODE_SERVER,
+      TS_RECORDMODE_STAND_ALONE
+    } TSRecordModeType;
+
+  /* The values of this enum must match enum RecAccessT in I_RecDefs.h */
+  typedef enum
+    {
+      TS_RECORDACCESS_NULL,
+      TS_RECORDACCESS_NO_ACCESS,
+      TS_RECORDACCESS_READ_ONLY
+    } TSRecordAccessType;
+
+  typedef enum
+  {
+    TS_CONFIG_NULL = -1,
+    TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR,
+    TS_CONFIG_HTTP_CHUNKING_ENABLED,
+    TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED,
+    TS_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME,
+    TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE,
+    TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN,
+    TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT,
+    TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT,
+    TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS, // DEPRECATED
+    TS_CONFIG_HTTP_SERVER_SESSION_SHARING_POOL,
+    TS_CONFIG_HTTP_SERVER_SESSION_SHARING_MATCH,
+    TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT,
+    TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT,
+    TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT,
+    TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT,
+    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM,
+    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER,
+    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT,
+    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE,
+    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP,
+    TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP,
+    TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED,
+    TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR,
+    TS_CONFIG_HTTP_SERVER_TCP_INIT_CWND,
+    TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS,
+    TS_CONFIG_HTTP_CACHE_HTTP,
+    TS_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL,
+    TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE,
+    TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE,
+    TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE,
+    TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE,
+    TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES,
+    TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION,
+    TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC,
+    TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS,
+    TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR,
+    TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR,
+    TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME,
+    TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME,
+    TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME,
+    TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME,
+    TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE,
+    TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN,
+    TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT,
+    TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN,
+    TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT,
+    TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT,
+    TS_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS,
+    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES,
+    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER,
+    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES,
+    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT,
+    TS_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT,
+    TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME,
+    TS_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD,
+    TS_CONFIG_HTTP_CACHE_FUZZ_TIME,
+    TS_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME,
+    TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS,
+    TS_CONFIG_HTTP_BACKGROUND_FILL_ACTIVE_TIMEOUT,
+    TS_CONFIG_HTTP_RESPONSE_SERVER_STR,
+    TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR,
+    TS_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY,
+    TS_CONFIG_HTTP_BACKGROUND_FILL_COMPLETED_THRESHOLD,
+    TS_CONFIG_NET_SOCK_PACKET_MARK_OUT,
+    TS_CONFIG_NET_SOCK_PACKET_TOS_OUT,
+    TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE,
+    TS_CONFIG_HTTP_CHUNKING_SIZE,
+    TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED,
+    TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER_MARK,
+    TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK,
+    TS_CONFIG_HTTP_CACHE_RANGE_LOOKUP,
+    TS_CONFIG_HTTP_NORMALIZE_AE_GZIP,
+    TS_CONFIG_HTTP_DEFAULT_BUFFER_SIZE,
+    TS_CONFIG_HTTP_DEFAULT_BUFFER_WATER_MARK,
+    TS_CONFIG_HTTP_REQUEST_HEADER_MAX_SIZE,
+    TS_CONFIG_HTTP_RESPONSE_HEADER_MAX_SIZE,
+    TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_ENABLED,
+    TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_LIFETIME,
+    TS_CONFIG_HTTP_ACCEPT_ENCODING_FILTER_ENABLED,
+    TS_CONFIG_SSL_HSTS_MAX_AGE,
+    TS_CONFIG_SSL_HSTS_INCLUDE_SUBDOMAINS,
+    TS_CONFIG_HTTP_CACHE_OPEN_READ_RETRY_TIME,
+    TS_CONFIG_HTTP_CACHE_MAX_OPEN_READ_RETRIES,
+    TS_CONFIG_HTTP_CACHE_RANGE_WRITE,
+    TS_CONFIG_LAST_ENTRY
+  } TSOverridableConfigKey;
+
+  /* The TASK pool of threads is the primary method of off-loading continuations from the
+     net-threads. Configure this with proxy.config.task_threads in records.config. */
+  typedef enum
+    {
+      TS_THREAD_POOL_DEFAULT = -1,
+      TS_THREAD_POOL_NET,
+      TS_THREAD_POOL_TASK,
+      /* unlikely you should use these */
+      TS_THREAD_POOL_SSL,
+      TS_THREAD_POOL_DNS,
+      TS_THREAD_POOL_REMAP,
+      TS_THREAD_POOL_CLUSTER,
+      TS_THREAD_POOL_UDP
+    } TSThreadPool;
+
+  typedef int64_t TSHRTime;
+
+  /* The TSMilestonesType is an enum defining all the various milestones ("timers") that
+     we track for a request. */
+  typedef enum
+    {
+      TS_MILESTONE_NULL = -1,
+      TS_MILESTONE_UA_BEGIN,
+      TS_MILESTONE_UA_READ_HEADER_DONE,
+      TS_MILESTONE_UA_BEGIN_WRITE,
+      TS_MILESTONE_UA_CLOSE,
+      TS_MILESTONE_SERVER_FIRST_CONNECT,
+      TS_MILESTONE_SERVER_CONNECT,
+      TS_MILESTONE_SERVER_CONNECT_END,
+      TS_MILESTONE_SERVER_BEGIN_WRITE,
+      TS_MILESTONE_SERVER_FIRST_READ,
+      TS_MILESTONE_SERVER_READ_HEADER_DONE,
+      TS_MILESTONE_SERVER_CLOSE,
+      TS_MILESTONE_CACHE_OPEN_READ_BEGIN,
+      TS_MILESTONE_CACHE_OPEN_READ_END,
+      TS_MILESTONE_CACHE_OPEN_WRITE_BEGIN,
+      TS_MILESTONE_CACHE_OPEN_WRITE_END,
+      TS_MILESTONE_DNS_LOOKUP_BEGIN,
+      TS_MILESTONE_DNS_LOOKUP_END,
+      TS_MILESTONE_SM_START,
+      TS_MILESTONE_SM_FINISH,
+      TS_MILESTONE_LAST_ENTRY
+    } TSMilestonesType;
+
+
+  /* These typedefs are used with the corresponding TSMgmt*Get functions
+     for storing the values retrieved by those functions. For example,
+     TSMgmtCounterGet() retrieves an TSMgmtCounter. */
+  typedef int64_t TSMgmtInt;
+  typedef int64_t TSMgmtCounter;
+  typedef float TSMgmtFloat;
+  typedef char* TSMgmtString;
+
+  typedef struct tsapi_file* TSFile;
+
+  typedef struct tsapi_mloc* TSMLoc;
+  typedef struct tsapi_mbuffer* TSMBuffer;
+  typedef struct tsapi_httpssn* TSHttpSsn;
+  typedef struct tsapi_httptxn* TSHttpTxn;
+  typedef struct tsapi_httpaltinfo* TSHttpAltInfo;
+  typedef struct tsapi_mimeparser* TSMimeParser;
+  typedef struct tsapi_httpparser* TSHttpParser;
+  typedef struct tsapi_cachekey* TSCacheKey;
+  typedef struct tsapi_cachehttpinfo* TSCacheHttpInfo;
+  typedef struct tsapi_cachetxn* TSCacheTxn;
+
+  typedef struct tsapi_port* TSPortDescriptor;
+  typedef struct tsapi_vio* TSVIO;
+  typedef struct tsapi_thread* TSThread;
+  typedef struct tsapi_mutex* TSMutex;
+  typedef struct tsapi_config* TSConfig;
+  typedef struct tsapi_cont* TSCont;
+  typedef struct tsapi_cont* TSVConn; /* a VConn is really a specialized TSCont */
+  typedef struct tsapi_action* TSAction;
+  typedef struct tsapi_iobuffer* TSIOBuffer;
+  typedef struct tsapi_iobufferdata* TSIOBufferData;
+  typedef struct tsapi_bufferblock* TSIOBufferBlock;
+  typedef struct tsapi_bufferreader* TSIOBufferReader;
+  typedef struct tsapi_hostlookupresult* TSHostLookupResult;
+  typedef struct tsapi_aiocallback* TSAIOCallback;
+
+  typedef void *(*TSThreadFunc) (void* data);
+  typedef int (*TSEventFunc) (TSCont contp, TSEvent event, void* edata);
+  typedef void (*TSConfigDestroyFunc) (void* data);
+
+  typedef struct
+  {
+    int success_event_id;
+    int failure_event_id;
+    int timeout_event_id;
+  } TSFetchEvent;
+
+  typedef struct TSFetchUrlParams
+  {
+    const char* request;
+    int request_len;
+    struct sockaddr_storage ip;
+    int port;
+    TSCont contp;
+    TSFetchEvent events;
+    TSFetchWakeUpOptions options;
+    struct TSFetchUrlParams* next;
+  } TSFetchUrlParams_t;
+
+  /* --------------------------------------------------------------------------
+     Init */
+
+  /**
+      This function must be defined by all plugins. Traffic Server
+      calls this initialization routine when it loads the plugin (at
+      startup), and sets argc and argv appropriately based on the values
+      in plugin.config.
+
+      @param argc the number of initial values specified in plugin.config,
+        plus one. If only the name of your plugin shared object is
+        specified in plugin.config, argc=1.
+      @param argv the vector of arguments. The length of argv is argc.
+        argv[0] is the name of the plugin shared library. Subsequent
+        values of argv are initialization values specified in
+        plugin.config.
+
+   */
+  extern tsapi void TSPluginInit(int argc, const char* argv[]);
+
+  /* --------------------------------------------------------------------------
+     URL schemes */
+  extern tsapi const char* TS_URL_SCHEME_FILE;
+  extern tsapi const char* TS_URL_SCHEME_FTP;
+  extern tsapi const char* TS_URL_SCHEME_GOPHER;
+  extern tsapi const char* TS_URL_SCHEME_HTTP;
+  extern tsapi const char* TS_URL_SCHEME_HTTPS;
+  extern tsapi const char* TS_URL_SCHEME_MAILTO;
+  extern tsapi const char* TS_URL_SCHEME_NEWS;
+  extern tsapi const char* TS_URL_SCHEME_NNTP;
+  extern tsapi const char* TS_URL_SCHEME_PROSPERO;
+  extern tsapi const char* TS_URL_SCHEME_TELNET;
+  extern tsapi const char* TS_URL_SCHEME_TUNNEL;
+  extern tsapi const char* TS_URL_SCHEME_WAIS;
+  extern tsapi const char* TS_URL_SCHEME_PNM;
+  extern tsapi const char* TS_URL_SCHEME_RTSP;
+  extern tsapi const char* TS_URL_SCHEME_RTSPU;
+  extern tsapi const char* TS_URL_SCHEME_MMS;
+  extern tsapi const char* TS_URL_SCHEME_MMSU;
+  extern tsapi const char* TS_URL_SCHEME_MMST;
+
+  /* --------------------------------------------------------------------------
+     URL scheme string lengths */
+  extern tsapi int TS_URL_LEN_FILE;
+  extern tsapi int TS_URL_LEN_FTP;
+  extern tsapi int TS_URL_LEN_GOPHER;
+  extern tsapi int TS_URL_LEN_HTTP;
+  extern tsapi int TS_URL_LEN_HTTPS;
+  extern tsapi int TS_URL_LEN_MAILTO;
+  extern tsapi int TS_URL_LEN_NEWS;
+  extern tsapi int TS_URL_LEN_NNTP;
+  extern tsapi int TS_URL_LEN_PROSPERO;
+  extern tsapi int TS_URL_LEN_TELNET;
+  extern tsapi int TS_URL_LEN_WAIS;
+
+  /* --------------------------------------------------------------------------
+     MIME fields */
+  extern tsapi const char* TS_MIME_FIELD_ACCEPT;
+  extern tsapi const char* TS_MIME_FIELD_ACCEPT_CHARSET;
+  extern tsapi const char* TS_MIME_FIELD_ACCEPT_ENCODING;
+  extern tsapi const char* TS_MIME_FIELD_ACCEPT_LANGUAGE;
+  extern tsapi const char* TS_MIME_FIELD_ACCEPT_RANGES;
+  extern tsapi const char* TS_MIME_FIELD_AGE;
+  extern tsapi const char* TS_MIME_FIELD_ALLOW;
+  extern tsapi const char* TS_MIME_FIELD_APPROVED;
+  extern tsapi const char* TS_MIME_FIELD_AUTHORIZATION;
+  extern tsapi const char* TS_MIME_FIELD_BYTES;
+  extern tsapi const char* TS_MIME_FIELD_CACHE_CONTROL;
+  extern tsapi const char* TS_MIME_FIELD_CLIENT_IP;
+  extern tsapi const char* TS_MIME_FIELD_CONNECTION;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_BASE;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_ENCODING;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_LANGUAGE;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_LENGTH;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_LOCATION;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_MD5;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_RANGE;
+  extern tsapi const char* TS_MIME_FIELD_CONTENT_TYPE;
+  extern tsapi const char* TS_MIME_FIELD_CONTROL;
+  extern tsapi const char* TS_MIME_FIELD_COOKIE;
+  extern tsapi const char* TS_MIME_FIELD_DATE;
+  extern tsapi const char* TS_MIME_FIELD_DISTRIBUTION;
+  extern tsapi const char* TS_MIME_FIELD_ETAG;
+  extern tsapi const char* TS_MIME_FIELD_EXPECT;
+  extern tsapi const char* TS_MIME_FIELD_EXPIRES;
+  extern tsapi const char* TS_MIME_FIELD_FOLLOWUP_TO;
+  extern tsapi const char* TS_MIME_FIELD_FROM;
+  extern tsapi const char* TS_MIME_FIELD_HOST;
+  extern tsapi const char* TS_MIME_FIELD_IF_MATCH;
+  extern tsapi const char* TS_MIME_FIELD_IF_MODIFIED_SINCE;
+  extern tsapi const char* TS_MIME_FIELD_IF_NONE_MATCH;
+  extern tsapi const char* TS_MIME_FIELD_IF_RANGE;
+  extern tsapi const char* TS_MIME_FIELD_IF_UNMODIFIED_SINCE;
+  extern tsapi const char* TS_MIME_FIELD_KEEP_ALIVE;
+  extern tsapi const char* TS_MIME_FIELD_KEYWORDS;
+  extern tsapi const char* TS_MIME_FIELD_LAST_MODIFIED;
+  extern tsapi const char* TS_MIME_FIELD_LINES;
+  extern tsapi const char* TS_MIME_FIELD_LOCATION;
+  extern tsapi const char* TS_MIME_FIELD_MAX_FORWARDS;
+  extern tsapi const char* TS_MIME_FIELD_MESSAGE_ID;
+  extern tsapi const char* TS_MIME_FIELD_NEWSGROUPS;
+  extern tsapi const char* TS_MIME_FIELD_ORGANIZATION;
+  extern tsapi const char* TS_MIME_FIELD_PATH;
+  extern tsapi const char* TS_MIME_FIELD_PRAGMA;
+  extern tsapi const char* TS_MIME_FIELD_PROXY_AUTHENTICATE;
+  extern tsapi const char* TS_MIME_FIELD_PROXY_AUTHORIZATION;
+  extern tsapi const char* TS_MIME_FIELD_PROXY_CONNECTION;
+  extern tsapi const char* TS_MIME_FIELD_PUBLIC;
+  extern tsapi const char* TS_MIME_FIELD_RANGE;
+  extern tsapi const char* TS_MIME_FIELD_REFERENCES;
+  extern tsapi const char* TS_MIME_FIELD_REFERER;
+  extern tsapi const char* TS_MIME_FIELD_REPLY_TO;
+  extern tsapi const char* TS_MIME_FIELD_RETRY_AFTER;
+  extern tsapi const char* TS_MIME_FIELD_SENDER;
+  extern tsapi const char* TS_MIME_FIELD_SERVER;
+  extern tsapi const char* TS_MIME_FIELD_SET_COOKIE;
+  extern tsapi const char* TS_MIME_FIELD_STRICT_TRANSPORT_SECURITY;
+  extern tsapi const char* TS_MIME_FIELD_SUBJECT;
+  extern tsapi const char* TS_MIME_FIELD_SUMMARY;
+  extern tsapi const char* TS_MIME_FIELD_TE;
+  extern tsapi const char* TS_MIME_FIELD_TRANSFER_ENCODING;
+  extern tsapi const char* TS_MIME_FIELD_UPGRADE;
+  extern tsapi const char* TS_MIME_FIELD_USER_AGENT;
+  extern tsapi const char* TS_MIME_FIELD_VARY;
+  extern tsapi const char* TS_MIME_FIELD_VIA;
+  extern tsapi const char* TS_MIME_FIELD_WARNING;
+  extern tsapi const char* TS_MIME_FIELD_WWW_AUTHENTICATE;
+  extern tsapi const char* TS_MIME_FIELD_XREF;
+  extern tsapi const char* TS_MIME_FIELD_X_FORWARDED_FOR;
+
+  /* --------------------------------------------------------------------------
+     MIME fields string lengths */
+  extern tsapi int TS_MIME_LEN_ACCEPT;
+  extern tsapi int TS_MIME_LEN_ACCEPT_CHARSET;
+  extern tsapi int TS_MIME_LEN_ACCEPT_ENCODING;
+  extern tsapi int TS_MIME_LEN_ACCEPT_LANGUAGE;
+  extern tsapi int TS_MIME_LEN_ACCEPT_RANGES;
+  extern tsapi int TS_MIME_LEN_AGE;
+  extern tsapi int TS_MIME_LEN_ALLOW;
+  extern tsapi int TS_MIME_LEN_APPROVED;
+  extern tsapi int TS_MIME_LEN_AUTHORIZATION;
+  extern tsapi int TS_MIME_LEN_BYTES;
+  extern tsapi int TS_MIME_LEN_CACHE_CONTROL;
+  extern tsapi int TS_MIME_LEN_CLIENT_IP;
+  extern tsapi int TS_MIME_LEN_CONNECTION;
+  extern tsapi int TS_MIME_LEN_CONTENT_BASE;
+  extern tsapi int TS_MIME_LEN_CONTENT_ENCODING;
+  extern tsapi int TS_MIME_LEN_CONTENT_LANGUAGE;
+  extern tsapi int TS_MIME_LEN_CONTENT_LENGTH;
+  extern tsapi int TS_MIME_LEN_CONTENT_LOCATION;
+  extern tsapi int TS_MIME_LEN_CONTENT_MD5;
+  extern tsapi int TS_MIME_LEN_CONTENT_RANGE;
+  extern tsapi int TS_MIME_LEN_CONTENT_TYPE;
+  extern tsapi int TS_MIME_LEN_CONTROL;
+  extern tsapi int TS_MIME_LEN_COOKIE;
+  extern tsapi int TS_MIME_LEN_DATE;
+  extern tsapi int TS_MIME_LEN_DISTRIBUTION;
+  extern tsapi int TS_MIME_LEN_ETAG;
+  extern tsapi int TS_MIME_LEN_EXPECT;
+  extern tsapi int TS_MIME_LEN_EXPIRES;
+  extern tsapi int TS_MIME_LEN_FOLLOWUP_TO;
+  extern tsapi int TS_MIME_LEN_FROM;
+  extern tsapi int TS_MIME_LEN_HOST;
+  extern tsapi int TS_MIME_LEN_IF_MATCH;
+  extern tsapi int TS_MIME_LEN_IF_MODIFIED_SINCE;
+  extern tsapi int TS_MIME_LEN_IF_NONE_MATCH;
+  extern tsapi int TS_MIME_LEN_IF_RANGE;
+  extern tsapi int TS_MIME_LEN_IF_UNMODIFIED_SINCE;
+  extern tsapi int TS_MIME_LEN_KEEP_ALIVE;
+  extern tsapi int TS_MIME_LEN_KEYWORDS;
+  extern tsapi int TS_MIME_LEN_LAST_MODIFIED;
+  extern tsapi int TS_MIME_LEN_LINES;
+  extern tsapi int TS_MIME_LEN_LOCATION;
+  extern tsapi int TS_MIME_LEN_MAX_FORWARDS;
+  extern tsapi int TS_MIME_LEN_MESSAGE_ID;
+  extern tsapi int TS_MIME_LEN_NEWSGROUPS;
+  extern tsapi int TS_MIME_LEN_ORGANIZATION;
+  extern tsapi int TS_MIME_LEN_PATH;
+  extern tsapi int TS_MIME_LEN_PRAGMA;
+  extern tsapi int TS_MIME_LEN_PROXY_AUTHENTICATE;
+  extern tsapi int TS_MIME_LEN_PROXY_AUTHORIZATION;
+  extern tsapi int TS_MIME_LEN_PROXY_CONNECTION;
+  extern tsapi int TS_MIME_LEN_PUBLIC;
+  extern tsapi int TS_MIME_LEN_RANGE;
+  extern tsapi int TS_MIME_LEN_REFERENCES;
+  extern tsapi int TS_MIME_LEN_REFERER;
+  extern tsapi int TS_MIME_LEN_REPLY_TO;
+  extern tsapi int TS_MIME_LEN_RETRY_AFTER;
+  extern tsapi int TS_MIME_LEN_SENDER;
+  extern tsapi int TS_MIME_LEN_SERVER;
+  extern tsapi int TS_MIME_LEN_SET_COOKIE;
+  extern tsapi int TS_MIME_LEN_STRICT_TRANSPORT_SECURITY;
+  extern tsapi int TS_MIME_LEN_SUBJECT;
+  extern tsapi int TS_MIME_LEN_SUMMARY;
+  extern tsapi int TS_MIME_LEN_TE;
+  extern tsapi int TS_MIME_LEN_TRANSFER_ENCODING;
+  extern tsapi int TS_MIME_LEN_UPGRADE;
+  extern tsapi int TS_MIME_LEN_USER_AGENT;
+  extern tsapi int TS_MIME_LEN_VARY;
+  extern tsapi int TS_MIME_LEN_VIA;
+  extern tsapi int TS_MIME_LEN_WARNING;
+  extern tsapi int TS_MIME_LEN_WWW_AUTHENTICATE;
+  extern tsapi int TS_MIME_LEN_XREF;
+  extern tsapi int TS_MIME_LEN_X_FORWARDED_FOR;
+
+  /* --------------------------------------------------------------------------
+     HTTP values */
+  extern tsapi const char* TS_HTTP_VALUE_BYTES;
+  extern tsapi const char* TS_HTTP_VALUE_CHUNKED;
+  extern tsapi const char* TS_HTTP_VALUE_CLOSE;
+  extern tsapi const char* TS_HTTP_VALUE_COMPRESS;
+  extern tsapi const char* TS_HTTP_VALUE_DEFLATE;
+  extern tsapi const char* TS_HTTP_VALUE_GZIP;
+  extern tsapi const char* TS_HTTP_VALUE_IDENTITY;
+  extern tsapi const char* TS_HTTP_VALUE_KEEP_ALIVE;
+  extern tsapi const char* TS_HTTP_VALUE_MAX_AGE;
+  extern tsapi const char* TS_HTTP_VALUE_MAX_STALE;
+  extern tsapi const char* TS_HTTP_VALUE_MIN_FRESH;
+  extern tsapi const char* TS_HTTP_VALUE_MUST_REVALIDATE;
+  extern tsapi const char* TS_HTTP_VALUE_NONE;
+  extern tsapi const char* TS_HTTP_VALUE_NO_CACHE;
+  extern tsapi const char* TS_HTTP_VALUE_NO_STORE;
+  extern tsapi const char* TS_HTTP_VALUE_NO_TRANSFORM;
+  extern tsapi const char* TS_HTTP_VALUE_ONLY_IF_CACHED;
+  extern tsapi const char* TS_HTTP_VALUE_PRIVATE;
+  extern tsapi const char* TS_HTTP_VALUE_PROXY_REVALIDATE;
+  extern tsapi const char* TS_HTTP_VALUE_PUBLIC;
+
+  /* --------------------------------------------------------------------------
+     HTTP values string lengths */
+  extern tsapi int TS_HTTP_LEN_BYTES;
+  extern tsapi int TS_HTTP_LEN_CHUNKED;
+  extern tsapi int TS_HTTP_LEN_CLOSE;
+  extern tsapi int TS_HTTP_LEN_COMPRESS;
+  extern tsapi int TS_HTTP_LEN_DEFLATE;
+  extern tsapi int TS_HTTP_LEN_GZIP;
+  extern tsapi int TS_HTTP_LEN_IDENTITY;
+  extern tsapi int TS_HTTP_LEN_KEEP_ALIVE;
+  extern tsapi int TS_HTTP_LEN_MAX_AGE;
+  extern tsapi int TS_HTTP_LEN_MAX_STALE;
+  extern tsapi int TS_HTTP_LEN_MIN_FRESH;
+  extern tsapi int TS_HTTP_LEN_MUST_REVALIDATE;
+  extern tsapi int TS_HTTP_LEN_NONE;
+  extern tsapi int TS_HTTP_LEN_NO_CACHE;
+  extern tsapi int TS_HTTP_LEN_NO_STORE;
+  extern tsapi int TS_HTTP_LEN_NO_TRANSFORM;
+  extern tsapi int TS_HTTP_LEN_ONLY_IF_CACHED;
+  extern tsapi int TS_HTTP_LEN_PRIVATE;
+  extern tsapi int TS_HTTP_LEN_PROXY_REVALIDATE;
+  extern tsapi int TS_HTTP_LEN_PUBLIC;
+
+  /* --------------------------------------------------------------------------
+     HTTP methods */
+  extern tsapi const char* TS_HTTP_METHOD_CONNECT;
+  extern tsapi const char* TS_HTTP_METHOD_DELETE;
+  extern tsapi const char* TS_HTTP_METHOD_GET;
+  extern tsapi const char* TS_HTTP_METHOD_HEAD;
+  extern tsapi const char* TS_HTTP_METHOD_ICP_QUERY;
+  extern tsapi const char* TS_HTTP_METHOD_OPTIONS;
+  extern tsapi const char* TS_HTTP_METHOD_POST;
+  extern tsapi const char* TS_HTTP_METHOD_PURGE;
+  extern tsapi const char* TS_HTTP_METHOD_PUT;
+  extern tsapi const char* TS_HTTP_METHOD_TRACE;
+  extern tsapi const char* TS_HTTP_METHOD_PUSH;
+
+  /* --------------------------------------------------------------------------
+     HTTP methods string lengths */
+  extern tsapi int TS_HTTP_LEN_CONNECT;
+  extern tsapi int TS_HTTP_LEN_DELETE;
+  extern tsapi int TS_HTTP_LEN_GET;
+  extern tsapi int TS_HTTP_LEN_HEAD;
+  extern tsapi int TS_HTTP_LEN_ICP_QUERY;
+  extern tsapi int TS_HTTP_LEN_OPTIONS;
+  extern tsapi int TS_HTTP_LEN_POST;
+  extern tsapi int TS_HTTP_LEN_PURGE;
+  extern tsapi int TS_HTTP_LEN_PUT;
+  extern tsapi int TS_HTTP_LEN_TRACE;
+  extern tsapi int TS_HTTP_LEN_PUSH;
+
+  /* --------------------------------------------------------------------------
+     TLS Next Protocol well-known protocol names. */
+
+  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_0_9;
+  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_1_0;
+  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_1_1;
+  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_2_0;
+  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_1;
+  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_2;
+  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_3;
+  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_3_1;
+
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_0_9;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_1_0;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_1_1;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_1;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_2;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_3;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_3_1;
+  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_2_0;
+
+  extern tsapi const char * const TS_NPN_PROTOCOL_GROUP_HTTP;
+  extern tsapi const char * const TS_NPN_PROTOCOL_GROUP_HTTP2;
+  extern tsapi const char * const TS_NPN_PROTOCOL_GROUP_SPDY;
+
+  /* --------------------------------------------------------------------------
+     MLoc Constants */
+  /**
+      Use TS_NULL_MLOC as the parent in calls that require a parent
+      when an TSMLoc does not have a parent TSMLoc. For example if
+      the TSMLoc is obtained by a call to TSHttpTxnClientReqGet(),
+
+   */
+  extern tsapi const TSMLoc TS_NULL_MLOC;
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __TS_TYPES_H__ */
diff --git a/lib/ts/defalloc.h b/lib/ts/defalloc.h
new file mode 100644
index 00000000..90ff4518
--- /dev/null
+++ b/lib/ts/defalloc.h
@@ -0,0 +1,34 @@
+/** @file
+
+  Default allocator: malloc/free
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#ifndef _defalloc_H_
+#define  _defalloc_H_
+
+#include "ink_memory.h"
+
+class DefaultAlloc { public:
+  static void *alloc(int s) { return ats_malloc(s); }
+  static void free(void *p) { ats_free(p); }
+};
+
+#endif
+
diff --git a/lib/ts/fastlz.c b/lib/ts/fastlz.c
new file mode 100644
index 00000000..dabbdcbb
--- /dev/null
+++ b/lib/ts/fastlz.c
@@ -0,0 +1,551 @@
+/*
+  FastLZ - lightning-fast lossless compression library
+
+  Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
+  Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
+  Copyright (C) 2005 Ariya Hidayat (ariya@kde.org)
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+#if !defined(FASTLZ__COMPRESSOR) && !defined(FASTLZ_DECOMPRESSOR)
+
+/*
+ * Always check for bound when decompressing.
+ * Generally it is best to leave it defined.
+ */
+#define FASTLZ_SAFE
+
+/*
+ * Give hints to the compiler for branch prediction optimization.
+ */
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#define FASTLZ_EXPECT_CONDITIONAL(c)    (__builtin_expect((c), 1))
+#define FASTLZ_UNEXPECT_CONDITIONAL(c)  (__builtin_expect((c), 0))
+#else
+#define FASTLZ_EXPECT_CONDITIONAL(c)    (c)
+#define FASTLZ_UNEXPECT_CONDITIONAL(c)  (c)
+#endif
+
+/*
+ * Use inlined functions for supported systems.
+ */
+#if defined(__GNUC__) || defined(__DMC__) || defined(__POCC__) || defined(__WATCOMC__) || defined(__SUNPRO_C)
+#define FASTLZ_INLINE inline
+#elif defined(__BORLANDC__) || defined(_MSC_VER) || defined(__LCC__)
+#define FASTLZ_INLINE __inline
+#else
+#define FASTLZ_INLINE
+#endif
+
+/*
+ * Prevent accessing more than 8-bit at once, except on x86 architectures.
+ */
+#if !defined(FASTLZ_STRICT_ALIGN)
+#define FASTLZ_STRICT_ALIGN
+#if defined(__i386__) || defined(__386)  /* GNU C, Sun Studio */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(__i486__) || defined(__i586__) || defined(__i686__) /* GNU C */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(_M_IX86) /* Intel, MSVC */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(__386)
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(_X86_) /* MinGW */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(__I86__) /* Digital Mars */
+#undef FASTLZ_STRICT_ALIGN
+#endif
+#endif
+
+/*
+ * FIXME: use preprocessor magic to set this on different platforms!
+ */
+typedef unsigned char  flzuint8;
+typedef unsigned short flzuint16;
+typedef unsigned int   flzuint32;
+
+/* prototypes */
+int fastlz_compress(const void* input, int length, void* output);
+int fastlz_compress_level(int level, const void* input, int length, void* output);
+int fastlz_decompress(const void* input, int length, void* output, int maxout);
+
+#define MAX_COPY       32
+#define MAX_LEN       264  /* 256 + 8 */
+#define MAX_DISTANCE 8192
+
+#if !defined(FASTLZ_STRICT_ALIGN)
+#define FASTLZ_READU16(p) *((const flzuint16*)(p))
+#else
+#define FASTLZ_READU16(p) ((p)[0] | (p)[1]<<8)
+#endif
+
+#define HASH_LOG  13
+#define HASH_SIZE (1<< HASH_LOG)
+#define HASH_MASK  (HASH_SIZE-1)
+#define HASH_FUNCTION(v,p) { v = FASTLZ_READU16(p); v ^= FASTLZ_READU16(p+1)^(v>>(16-HASH_LOG));v &= HASH_MASK; }
+
+#undef FASTLZ_LEVEL
+#define FASTLZ_LEVEL 1
+
+#undef FASTLZ_COMPRESSOR
+#undef FASTLZ_DECOMPRESSOR
+#define FASTLZ_COMPRESSOR fastlz1_compress
+#define FASTLZ_DECOMPRESSOR fastlz1_decompress
+static FASTLZ_INLINE int FASTLZ_COMPRESSOR(const void* input, int length, void* output);
+static FASTLZ_INLINE int FASTLZ_DECOMPRESSOR(const void* input, int length, void* output, int maxout);
+#include "fastlz.c"
+
+#undef FASTLZ_LEVEL
+#define FASTLZ_LEVEL 2
+
+#undef MAX_DISTANCE
+#define MAX_DISTANCE 8191
+#define MAX_FARDISTANCE (65535+MAX_DISTANCE-1)
+
+#undef FASTLZ_COMPRESSOR
+#undef FASTLZ_DECOMPRESSOR
+#define FASTLZ_COMPRESSOR fastlz2_compress
+#define FASTLZ_DECOMPRESSOR fastlz2_decompress
+static FASTLZ_INLINE int FASTLZ_COMPRESSOR(const void* input, int length, void* output);
+static FASTLZ_INLINE int FASTLZ_DECOMPRESSOR(const void* input, int length, void* output, int maxout);
+#include "fastlz.c"
+
+int fastlz_compress(const void* input, int length, void* output)
+{
+  /* for short block, choose fastlz1 */
+  if(length < 65536)
+    return fastlz1_compress(input, length, output);
+
+  /* else... */
+  return fastlz2_compress(input, length, output);
+}
+
+int fastlz_decompress(const void* input, int length, void* output, int maxout)
+{
+  /* magic identifier for compression level */
+  int level = ((*(const flzuint8*)input) >> 5) + 1;
+
+  if(level == 1)
+    return fastlz1_decompress(input, length, output, maxout);
+  if(level == 2)
+    return fastlz2_decompress(input, length, output, maxout);
+
+  /* unknown level, trigger error */
+  return 0;
+}
+
+int fastlz_compress_level(int level, const void* input, int length, void* output)
+{
+  if(level == 1)
+    return fastlz1_compress(input, length, output);
+  if(level == 2)
+    return fastlz2_compress(input, length, output);
+
+  return 0;
+}
+
+#else /* !defined(FASTLZ_COMPRESSOR) && !defined(FASTLZ_DECOMPRESSOR) */
+
+static FASTLZ_INLINE int FASTLZ_COMPRESSOR(const void* input, int length, void* output)
+{
+  const flzuint8* ip = (const flzuint8*) input;
+  const flzuint8* ip_bound = ip + length - 2;
+  const flzuint8* ip_limit = ip + length - 12;
+  flzuint8* op = (flzuint8*) output;
+
+  const flzuint8* htab[HASH_SIZE];
+  const flzuint8** hslot;
+  flzuint32 hval;
+
+  flzuint32 copy;
+
+  /* sanity check */
+  if(FASTLZ_UNEXPECT_CONDITIONAL(length < 4))
+  {
+    if(length)
+    {
+      /* create literal copy only */
+      *op++ = length-1;
+      ip_bound++;
+      while(ip <= ip_bound)
+        *op++ = *ip++;
+      return length+1;
+    }
+    else
+      return 0;
+  }
+
+  /* initializes hash table */
+  for (hslot = htab; hslot < htab + HASH_SIZE; hslot++)
+    *hslot = ip;
+
+  /* we start with literal copy */
+  copy = 2;
+  *op++ = MAX_COPY-1;
+  *op++ = *ip++;
+  *op++ = *ip++;
+
+  /* main loop */
+  while(FASTLZ_EXPECT_CONDITIONAL(ip < ip_limit))
+  {
+    const flzuint8* ref;
+    flzuint32 distance;
+
+    /* minimum match length */
+    flzuint32 len = 3;
+
+    /* comparison starting-point */
+    const flzuint8* anchor = ip;
+
+    /* check for a run */
+#if FASTLZ_LEVEL==2
+    if(ip[0] == ip[-1] && FASTLZ_READU16(ip-1)==FASTLZ_READU16(ip+1))
+    {
+      distance = 1;
+      ip += 3;
+      ref = anchor - 1 + 3;
+      goto match;
+    }
+#endif
+
+    /* find potential match */
+    HASH_FUNCTION(hval,ip);
+    hslot = htab + hval;
+    ref = htab[hval];
+
+    /* calculate distance to the match */
+    distance = anchor - ref;
+
+    /* update hash table */
+    *hslot = anchor;
+
+    /* is this a match? check the first 3 bytes */
+    if(distance==0 ||
+#if FASTLZ_LEVEL==1
+    (distance >= MAX_DISTANCE) ||
+#else
+    (distance >= MAX_FARDISTANCE) ||
+#endif
+    *ref++ != *ip++ || *ref++!=*ip++ || *ref++!=*ip++)
+      goto literal;
+
+#if FASTLZ_LEVEL==2
+    /* far, needs at least 5-byte match */
+    if(distance >= MAX_DISTANCE)
+    {
+      if(*ip++ != *ref++ || *ip++!= *ref++)
+        goto literal;
+      len += 2;
+    }
+
+    match:
+#endif
+
+    /* last matched byte */
+    ip = anchor + len;
+
+    /* distance is biased */
+    distance--;
+
+    if(!distance)
+    {
+      /* zero distance means a run */
+      flzuint8 x = ip[-1];
+      while(ip < ip_bound)
+        if(*ref++ != x) break; else ip++;
+    }
+    else
+    for(;;)
+    {
+      /* safe because the outer check against ip limit */
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      if(*ref++ != *ip++) break;
+      while(ip < ip_bound)
+        if(*ref++ != *ip++) break;
+      break;
+    }
+
+    /* if we have copied something, adjust the copy count */
+    if(copy)
+      /* copy is biased, '0' means 1 byte copy */
+      *(op-copy-1) = copy-1;
+    else
+      /* back, to overwrite the copy count */
+      op--;
+
+    /* reset literal counter */
+    copy = 0;
+
+    /* length is biased, '1' means a match of 3 bytes */
+    ip -= 3;
+    len = ip - anchor;
+
+    /* encode the match */
+#if FASTLZ_LEVEL==2
+    if(distance < MAX_DISTANCE)
+    {
+      if(len < 7)
+      {
+        *op++ = (len << 5) + (distance >> 8);
+        *op++ = (distance & 255);
+      }
+      else
+      {
+        *op++ = (7 << 5) + (distance >> 8);
+        for(len-=7; len >= 255; len-= 255)
+          *op++ = 255;
+        *op++ = len;
+        *op++ = (distance & 255);
+      }
+    }
+    else
+    {
+      /* far away, but not yet in the another galaxy... */
+      if(len < 7)
+      {
+        distance -= MAX_DISTANCE;
+        *op++ = (len << 5) + 31;
+        *op++ = 255;
+        *op++ = distance >> 8;
+        *op++ = distance & 255;
+      }
+      else
+      {
+        distance -= MAX_DISTANCE;
+        *op++ = (7 << 5) + 31;
+        for(len-=7; len >= 255; len-= 255)
+          *op++ = 255;
+        *op++ = len;
+        *op++ = 255;
+        *op++ = distance >> 8;
+        *op++ = distance & 255;
+      }
+    }
+#else
+
+    if(FASTLZ_UNEXPECT_CONDITIONAL(len > MAX_LEN-2))
+      while(len > MAX_LEN-2)
+      {
+        *op++ = (7 << 5) + (distance >> 8);
+        *op++ = MAX_LEN - 2 - 7 -2;
+        *op++ = (distance & 255);
+        len -= MAX_LEN-2;
+      }
+
+    if(len < 7)
+    {
+      *op++ = (len << 5) + (distance >> 8);
+      *op++ = (distance & 255);
+    }
+    else
+    {
+      *op++ = (7 << 5) + (distance >> 8);
+      *op++ = len - 7;
+      *op++ = (distance & 255);
+    }
+#endif
+
+    /* update the hash at match boundary */
+    HASH_FUNCTION(hval,ip);
+    htab[hval] = ip++;
+    HASH_FUNCTION(hval,ip);
+    htab[hval] = ip++;
+
+    /* assuming literal copy */
+    *op++ = MAX_COPY-1;
+
+    continue;
+
+    literal:
+      *op++ = *anchor++;
+      ip = anchor;
+      copy++;
+      if(FASTLZ_UNEXPECT_CONDITIONAL(copy == MAX_COPY))
+      {
+        copy = 0;
+        *op++ = MAX_COPY-1;
+      }
+  }
+
+  /* left-over as literal copy */
+  ip_bound++;
+  while(ip <= ip_bound)
+  {
+    *op++ = *ip++;
+    copy++;
+    if(copy == MAX_COPY)
+    {
+      copy = 0;
+      *op++ = MAX_COPY-1;
+    }
+  }
+
+  /* if we have copied something, adjust the copy length */
+  if(copy)
+    *(op-copy-1) = copy-1;
+  else
+    op--;
+
+#if FASTLZ_LEVEL==2
+  /* marker for fastlz2 */
+  *(flzuint8*)output |= (1 << 5);
+#endif
+
+  return op - (flzuint8*)output;
+}
+
+static FASTLZ_INLINE int FASTLZ_DECOMPRESSOR(const void* input, int length, void* output, int maxout)
+{
+  const flzuint8* ip = (const flzuint8*) input;
+  const flzuint8* ip_limit  = ip + length;
+  flzuint8* op = (flzuint8*) output;
+  flzuint8* op_limit = op + maxout;
+  flzuint32 ctrl = (*ip++) & 31;
+  int loop = 1;
+
+  do
+  {
+    const flzuint8* ref = op;
+    flzuint32 len = ctrl >> 5;
+    flzuint32 ofs = (ctrl & 31) << 8;
+
+    if(ctrl >= 32)
+    {
+#if FASTLZ_LEVEL==2
+      flzuint8 code;
+#endif
+      len--;
+      ref -= ofs;
+      if (len == 7-1)
+#if FASTLZ_LEVEL==1
+        len += *ip++;
+      ref -= *ip++;
+#else
+        do
+        {
+          code = *ip++;
+          len += code;
+        } while (code==255);
+      code = *ip++;
+      ref -= code;
+
+      /* match from 16-bit distance */
+      if(FASTLZ_UNEXPECT_CONDITIONAL(code==255))
+      if(FASTLZ_EXPECT_CONDITIONAL(ofs==(31 << 8)))
+      {
+        ofs = (*ip++) << 8;
+        ofs += *ip++;
+        ref = op - ofs - MAX_DISTANCE;
+      }
+#endif
+
+#ifdef FASTLZ_SAFE
+      if (FASTLZ_UNEXPECT_CONDITIONAL(op + len + 3 > op_limit))
+        return 0;
+
+      if (FASTLZ_UNEXPECT_CONDITIONAL(ref-1 < (flzuint8 *)output))
+        return 0;
+#endif
+
+      if(FASTLZ_EXPECT_CONDITIONAL(ip < ip_limit))
+        ctrl = *ip++;
+      else
+        loop = 0;
+
+      if(ref == op)
+      {
+        /* optimize copy for a run */
+        flzuint8 b = ref[-1];
+        *op++ = b;
+        *op++ = b;
+        *op++ = b;
+        for(; len; --len)
+          *op++ = b;
+      }
+      else
+      {
+#if !defined(FASTLZ_STRICT_ALIGN)
+        const flzuint16* p;
+        flzuint16* q;
+#endif
+        /* copy from reference */
+        ref--;
+        *op++ = *ref++;
+        *op++ = *ref++;
+        *op++ = *ref++;
+
+#if !defined(FASTLZ_STRICT_ALIGN)
+        /* copy a byte, so that now it's word aligned */
+        if(len & 1)
+        {
+          *op++ = *ref++;
+          len--;
+        }
+
+        /* copy 16-bit at once */
+        q = (flzuint16*) op;
+        op += len;
+        p = (const flzuint16*) ref;
+        for(len>>=1; len > 4; len-=4)
+        {
+          *q++ = *p++;
+          *q++ = *p++;
+          *q++ = *p++;
+          *q++ = *p++;
+        }
+        for(; len; --len)
+          *q++ = *p++;
+#else
+        for(; len; --len)
+          *op++ = *ref++;
+#endif
+      }
+    }
+    else
+    {
+      ctrl++;
+#ifdef FASTLZ_SAFE
+      if (FASTLZ_UNEXPECT_CONDITIONAL(op + ctrl > op_limit))
+        return 0;
+      if (FASTLZ_UNEXPECT_CONDITIONAL(ip + ctrl > ip_limit))
+        return 0;
+#endif
+
+      *op++ = *ip++;
+      for(--ctrl; ctrl; ctrl--)
+        *op++ = *ip++;
+
+      loop = FASTLZ_EXPECT_CONDITIONAL(ip < ip_limit);
+      if(loop)
+        ctrl = *ip++;
+    }
+  }
+  while(FASTLZ_EXPECT_CONDITIONAL(loop));
+
+  return op - (flzuint8*)output;
+}
+
+#endif /* !defined(FASTLZ_COMPRESSOR) && !defined(FASTLZ_DECOMPRESSOR) */
diff --git a/lib/ts/fastlz.h b/lib/ts/fastlz.h
new file mode 100644
index 00000000..e5ca8dfc
--- /dev/null
+++ b/lib/ts/fastlz.h
@@ -0,0 +1,100 @@
+/*
+  FastLZ - lightning-fast lossless compression library
+
+  Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
+  Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
+  Copyright (C) 2005 Ariya Hidayat (ariya@kde.org)
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+#ifndef FASTLZ_H
+#define FASTLZ_H
+
+#define FASTLZ_VERSION 0x000100
+
+#define FASTLZ_VERSION_MAJOR     0
+#define FASTLZ_VERSION_MINOR     0
+#define FASTLZ_VERSION_REVISION  0
+
+#define FASTLZ_VERSION_STRING "0.1.0"
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+/**
+  Compress a block of data in the input buffer and returns the size of
+  compressed block. The size of input buffer is specified by length. The
+  minimum input buffer size is 16.
+
+  The output buffer must be at least 5% larger than the input buffer
+  and can not be smaller than 66 bytes.
+
+  If the input is not compressible, the return value might be larger than
+  length (input buffer size).
+
+  The input buffer and the output buffer can not overlap.
+*/
+
+int fastlz_compress(const void* input, int length, void* output);
+
+/**
+  Decompress a block of compressed data and returns the size of the
+  decompressed block. If error occurs, e.g. the compressed data is
+  corrupted or the output buffer is not large enough, then 0 (zero)
+  will be returned instead.
+
+  The input buffer and the output buffer can not overlap.
+
+  Decompression is memory safe and guaranteed not to write the output buffer
+  more than what is specified in maxout.
+ */
+
+int fastlz_decompress(const void* input, int length, void* output, int maxout);
+
+/**
+  Compress a block of data in the input buffer and returns the size of
+  compressed block. The size of input buffer is specified by length. The
+  minimum input buffer size is 16.
+
+  The output buffer must be at least 5% larger than the input buffer
+  and can not be smaller than 66 bytes.
+
+  If the input is not compressible, the return value might be larger than
+  length (input buffer size).
+
+  The input buffer and the output buffer can not overlap.
+
+  Compression level can be specified in parameter level. At the moment,
+  only level 1 and level 2 are supported.
+  Level 1 is the fastest compression and generally useful for short data.
+  Level 2 is slightly slower but it gives better compression ratio.
+
+  Note that the compressed data, regardless of the level, can always be
+  decompressed using the function fastlz_decompress above.
+*/
+
+int fastlz_compress_level(int level, const void* input, int length, void* output);
+
+#if defined (__cplusplus)
+}
+#endif
+
+#endif /* FASTLZ_H */
diff --git a/lib/ts/ink_aiocb.h b/lib/ts/ink_aiocb.h
new file mode 100644
index 00000000..0271d2ea
--- /dev/null
+++ b/lib/ts/ink_aiocb.h
@@ -0,0 +1,63 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Async Struct definition.
+
+
+
+ ****************************************************************************/
+
+#ifndef _ink_aiocb_h_
+#define _ink_aiocb_h_
+
+#include "ink_defs.h"
+
+/* TODO use native aiocb where possible */
+
+#define	LIO_READ	0x1
+#define	LIO_WRITE	0x2
+
+struct ink_aiocb
+{
+  int aio_fildes;
+#if	defined(__STDC__)
+  volatile void *aio_buf;       /* buffer location */
+#else
+  void *aio_buf;                /* buffer location */
+#endif
+  size_t aio_nbytes;            /* length of transfer */
+
+  // TODO change to off_t
+  off_t aio_offset;         /* file offset */
+
+  int aio_reqprio;              /* request priority offset */
+  //    struct sigevent aio_sigevent;   /* signal number and offset */
+  int aio_lio_opcode;           /* listio operation */
+  //    aio_result_t    aio_resultp;    /* results */
+  int aio_state;                /* state flag for List I/O */
+  int aio__pad[1];              /* extension padding */
+};
+
+#endif
diff --git a/lib/ts/ink_align.h b/lib/ts/ink_align.h
new file mode 100644
index 00000000..f865d8d3
--- /dev/null
+++ b/lib/ts/ink_align.h
@@ -0,0 +1,99 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//-*-c++-*-
+#ifndef _ink_align_h_
+#define _ink_align_h_
+
+# include "ink_time.h"
+
+union Alias32 {
+  uint8_t byte[4];
+  int32_t i32;
+  uint32_t u32;
+};
+
+union Alias64 {
+  uint8_t byte[8];
+  int32_t i32[2];
+  uint32_t u32[2];
+  int64_t i64;
+  uint64_t u64;
+  ink_time_t i_time;
+};
+
+/**
+ * Alignment macros
+ */
+
+#define INK_MIN_ALIGN 8
+/* INK_ALIGN() is only to be used to align on a power of 2 boundary */
+#define INK_ALIGN(size, boundary) \
+    (((size) + ((boundary) - 1)) & ~((boundary) - 1))
+
+/** Default alignment */
+#define INK_ALIGN_DEFAULT(size) INK_ALIGN(size, INK_MIN_ALIGN)
+
+//
+// Move a pointer forward until it meets the alignment width.
+//
+static inline void *
+align_pointer_forward(const void *pointer_, size_t alignment)
+{
+  char *pointer = (char *) pointer_;
+  //
+  // Round up alignment..
+  //
+  pointer = (char *) INK_ALIGN((ptrdiff_t) pointer, alignment);
+
+  return (void *) pointer;
+}
+
+//
+// Move a pointer forward until it meets the alignment width specified,
+// and zero out the contents of the space you're skipping over.
+//
+static inline void *
+align_pointer_forward_and_zero(const void *pointer_, size_t alignment)
+{
+  char *pointer = (char *) pointer_;
+  char *aligned = (char *) INK_ALIGN((ptrdiff_t) pointer, alignment);
+  //
+  // Fill the skippings..
+  //
+  while (pointer < aligned) {
+    *pointer = 0;
+    pointer++;
+  }
+
+  return (void *) aligned;
+}
+
+//
+// We include two signatures for the same function to avoid error
+// messages concerning coercion between void* and unsigned long.
+// We could handle this using casts, but that's more prone to
+// errors during porting.
+//
+
+#endif
diff --git a/lib/ts/ink_apidefs.h b/lib/ts/ink_apidefs.h
new file mode 100644
index 00000000..16f1bb9d
--- /dev/null
+++ b/lib/ts/ink_apidefs.h
@@ -0,0 +1,78 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_apidefs_h_
+#define _ink_apidefs_h_
+
+#define inkliapi
+#define inkcoreapi
+#define ink_undoc_liapi
+#define ink_undoc_coreapi inkcoreapi
+
+#if defined(__GNUC__) || defined(__clang__)
+#ifndef likely
+#define likely(x)	__builtin_expect (!!(x), 1)
+#endif
+#ifndef unlikely
+#define unlikely(x)	__builtin_expect (!!(x), 0)
+#endif
+#else
+#ifndef likely
+#define likely(x)	(x)
+#endif
+#ifndef unlikely
+#define unlikely(x)	(x)
+#endif
+#endif
+
+#if !defined(TS_NORETURN)
+#if defined(__GNUC__) || defined(__clang__)
+#define TS_NORETURN __attribute__((noreturn))
+#else
+#define TS_NORETURN
+#endif
+#endif
+
+/*  Enable this to get printf() style warnings on the Inktomi functions. */
+/* #define PRINTFLIKE(IDX, FIRST)  __attribute__((format (printf, IDX, FIRST))) */
+#if !defined(TS_PRINTFLIKE)
+#if defined(__GNUC__) || defined(__clang__)
+#define TS_PRINTFLIKE(fmt, arg) __attribute__((format(printf, fmt, arg)))
+#else
+#define TS_PRINTFLIKE(fmt, arg)
+#endif
+#endif
+
+#if !defined(TS_NONNULL)
+#if defined(__GNUC__) || defined(__clang__)
+#define TS_NONNULL(...) __attribute__((nonnull (__VA_ARGS__)))
+#else
+#define TS_NONNULL(...)
+#endif
+#endif
+
+#if !defined(TS_INLINE)
+#define TS_INLINE inline
+#endif
+
+#endif
diff --git a/lib/ts/ink_args.cc b/lib/ts/ink_args.cc
new file mode 100644
index 00000000..59722ef1
--- /dev/null
+++ b/lib/ts/ink_args.cc
@@ -0,0 +1,262 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+Process arguments
+
+****************************************************************************/
+
+#include "libts.h"
+
+//
+//  Global variables
+//
+
+const char *file_arguments[MAX_FILE_ARGUMENTS] = { 0 };
+const char *program_name = (char *) "Traffic Server";
+unsigned n_file_arguments = 0;
+
+//
+//  Local variables
+//
+
+static const char *argument_types_keys = (char *) "ISDfFTL";
+static const char *argument_types_descriptions[] = {
+  (char *) "int  ",
+  (char *) "str  ",
+  (char *) "dbl  ",
+  (char *) "off  ",
+  (char *) "on   ",
+  (char *) "tog  ",
+  (char *) "i64  ",
+  (char *) "     "
+};
+
+//
+// Functions
+//
+
+static void
+process_arg(const ArgumentDescription * argument_descriptions,
+            unsigned n_argument_descriptions, int i, char ***argv, const char *usage_string)
+{
+  char *arg = NULL;
+  if (argument_descriptions[i].type) {
+    char type = argument_descriptions[i].type[0];
+    if (type == 'F' || type == 'f')
+      *(int *) argument_descriptions[i].location = type == 'F' ? 1 : 0;
+    else if (type == 'T')
+      *(int *) argument_descriptions[i].location = !*(int *) argument_descriptions[i].location;
+    else {
+      arg = *++(**argv) ? **argv : *++(*argv);
+      if (!arg)
+        usage(argument_descriptions, n_argument_descriptions, usage_string);
+      switch (type) {
+      case 'I':
+        *(int *) argument_descriptions[i].location = atoi(arg);
+        break;
+      case 'D':
+        *(double *) argument_descriptions[i].location = atof(arg);
+        break;
+      case 'L':
+        *(int64_t *) argument_descriptions[i].location = ink_atoi64(arg);
+        break;
+      case 'S':
+        if (argument_descriptions[i].type[1] == '*') {
+          char ** out = (char **)argument_descriptions[i].location;
+          *out = ats_strdup(arg);
+        } else {
+          ink_strlcpy((char *) argument_descriptions[i].location, arg, atoi(argument_descriptions[i].type + 1));
+        }
+        break;
+      default:
+        ink_fatal(1, (char *) "bad argument description");
+        break;
+      }
+      **argv += strlen(**argv) - 1;
+    }
+  }
+  if (argument_descriptions[i].pfn)
+    argument_descriptions[i].pfn(argument_descriptions, n_argument_descriptions, arg);
+}
+
+
+void
+show_argument_configuration(const ArgumentDescription * argument_descriptions, unsigned n_argument_descriptions)
+{
+  printf("Argument Configuration\n");
+  for (unsigned i = 0; i < n_argument_descriptions; i++) {
+    if (argument_descriptions[i].type) {
+      printf("  %-34s ", argument_descriptions[i].description);
+      switch (argument_descriptions[i].type[0]) {
+      case 'F':
+      case 'f':
+      case 'T':
+        printf(*(int *) argument_descriptions[i].location ? "TRUE" : "FALSE");
+        break;
+      case 'I':
+        printf("%d", *(int *) argument_descriptions[i].location);
+        break;
+      case 'D':
+        printf("%f", *(double *) argument_descriptions[i].location);
+        break;
+      case 'L':
+        printf("%" PRId64 "", *(int64_t *) argument_descriptions[i].location);
+        break;
+      case 'S':
+        printf("%s", (char *) argument_descriptions[i].location);
+        break;
+      default:
+        ink_fatal(1, (char *) "bad argument description");
+        break;
+      }
+      printf("\n");
+    }
+  }
+}
+
+void
+process_args(const ArgumentDescription * argument_descriptions, unsigned n_argument_descriptions, char **argv, const char *usage_string)
+{
+  unsigned i = 0;
+  //
+  // Grab Environment Variables
+  //
+  for (i = 0; i < n_argument_descriptions; i++)
+    if (argument_descriptions[i].env) {
+      char type = argument_descriptions[i].type[0];
+      char *env = getenv(argument_descriptions[i].env);
+      if (!env)
+        continue;
+      switch (type) {
+      case 'f':
+      case 'F':
+      case 'I':
+        *(int *) argument_descriptions[i].location = atoi(env);
+        break;
+      case 'D':
+        *(double *) argument_descriptions[i].location = atof(env);
+        break;
+      case 'L':
+        *(int64_t *) argument_descriptions[i].location = atoll(env);
+        break;
+      case 'S':
+        ink_strlcpy((char *) argument_descriptions[i].location, env, atoi(argument_descriptions[i].type + 1));
+        break;
+      }
+    }
+  //
+  // Grab Command Line Arguments
+  //
+  program_name = argv[0];
+  while (*++argv) {
+    if (**argv == '-') {
+      if ((*argv)[1] == '-') {
+        for (i = 0; i < n_argument_descriptions; i++)
+          if (!strcmp(argument_descriptions[i].name, (*argv) + 2)) {
+            *argv += strlen(*argv) - 1;
+            process_arg(argument_descriptions, n_argument_descriptions, i, &argv, usage_string);
+            break;
+          }
+        if (i >= n_argument_descriptions)
+          usage(argument_descriptions, n_argument_descriptions, usage_string);
+      } else {
+        while (*++(*argv))
+          for (i = 0; i < n_argument_descriptions; i++)
+            if (argument_descriptions[i].key == **argv) {
+              process_arg(argument_descriptions, n_argument_descriptions, i, &argv, usage_string);
+              break;
+            }
+        if (i >= n_argument_descriptions)
+          usage(argument_descriptions, n_argument_descriptions, usage_string);
+      }
+    } else {
+      if (n_file_arguments > MAX_FILE_ARGUMENTS)
+        ink_fatal(1, (char *) "too many files");
+      file_arguments[n_file_arguments++] = *argv;
+      file_arguments[n_file_arguments] = NULL;
+    }
+  }
+}
+
+void
+usage(const ArgumentDescription * argument_descriptions, unsigned n_argument_descriptions, const char *usage_string)
+{
+  (void) argument_descriptions;
+  (void) n_argument_descriptions;
+  (void) usage_string;
+  if (usage_string)
+    fprintf(stderr, "%s\n", usage_string);
+  else
+    fprintf(stderr, "Usage: %s [--SWITCH [ARG]]\n", program_name);
+  fprintf(stderr, "  switch__________________type__default___description\n");
+  for (unsigned i = 0; i < n_argument_descriptions; i++) {
+    if (!argument_descriptions[i].description)
+      continue;
+
+    fprintf(stderr, "  ");
+
+    if ('-' == argument_descriptions[i].key) fprintf(stderr, "   ");
+    else fprintf(stderr, "-%c,", argument_descriptions[i].key);
+                                               
+    fprintf(stderr, " --%-17s %s",
+            argument_descriptions[i].name,
+            argument_types_descriptions[argument_descriptions[i].type ?
+                                        strchr(argument_types_keys,
+                                               argument_descriptions[i].type[0]) -
+                                        argument_types_keys : strlen(argument_types_keys)
+            ]);
+    switch (argument_descriptions[i].type ? argument_descriptions[i].type[0] : 0) {
+    case 0:
+      fprintf(stderr, "          ");
+      break;
+    case 'L':
+      fprintf(stderr, " %-9" PRId64 "", *(int64_t *) argument_descriptions[i].location);
+      break;
+    case 'S':
+      if (*(char *) argument_descriptions[i].location) {
+        if (strlen((char *) argument_descriptions[i].location) < 10)
+          fprintf(stderr, " %-9s", (char *) argument_descriptions[i].location);
+        else {
+          ((char *) argument_descriptions[i].location)[7] = 0;
+          fprintf(stderr, " %-7s..", (char *) argument_descriptions[i].location);
+        }
+      } else
+        fprintf(stderr, " (null)   ");
+      break;
+    case 'D':
+      fprintf(stderr, " %-9.3f", *(double *) argument_descriptions[i].location);
+      break;
+    case 'I':
+      fprintf(stderr, " %-9d", *(int *) argument_descriptions[i].location);
+      break;
+    case 'T':
+    case 'f':
+    case 'F':
+      fprintf(stderr, " %-9s", *(int *) argument_descriptions[i].location ? "true " : "false");
+      break;
+    }
+    fprintf(stderr, " %s\n", argument_descriptions[i].description);
+  }
+  _exit(1);
+}
diff --git a/lib/ts/ink_args.h b/lib/ts/ink_args.h
new file mode 100644
index 00000000..74d10810
--- /dev/null
+++ b/lib/ts/ink_args.h
@@ -0,0 +1,79 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+Process arguments
+
+****************************************************************************/
+
+#ifndef _INK_ARGS_H
+#define _INK_ARGS_H
+#include "ink_defs.h"
+#include "ink_apidefs.h"
+
+#define MAX_FILE_ARGUMENTS 100
+
+struct ArgumentDescription;
+
+typedef void ArgumentFunction(const ArgumentDescription * argument_descriptions, unsigned n_argument_descriptions, const char *arg);
+
+struct ArgumentDescription
+{
+  const char *name;
+  char key; // set to '-' if no single character key.
+  /*
+     "I" = integer
+     "L" = int64_t
+     "D" = double (floating point)
+     "T" = toggle
+     "F" = set flag to TRUE (default is FALSE)
+     "f" = set flag to FALSE (default is TRUE)
+     "T" = toggle
+     "S80" = read string, 80 chars max
+     "S*" = read unbounded string, allocating
+   */
+  const char *description;
+  const char *type;
+  void *location;
+  const char *env;
+  ArgumentFunction *pfn;
+};
+
+/* Global Data
+*/
+extern const char *file_arguments[];  // exported by process_args()
+extern unsigned n_file_arguments;    // exported by process_args()
+extern const char *program_name;      // exported by process_args()
+
+/* Print out arguments and values
+*/
+void show_argument_configuration(const ArgumentDescription * argument_descriptions, unsigned n_argument_descriptions);
+
+void usage(const ArgumentDescription * argument_descriptions, unsigned n_argument_descriptions, const char *arg_unused) TS_NORETURN;
+
+/* Process all arguments
+*/
+void process_args(const ArgumentDescription * argument_descriptions,
+                  unsigned n_argument_descriptions, char **argv, const char *usage_string = 0);
+
+#endif /*_INK_ARGS_H*/
diff --git a/lib/ts/ink_assert.cc b/lib/ts/ink_assert.cc
new file mode 100644
index 00000000..013905a5
--- /dev/null
+++ b/lib/ts/ink_assert.cc
@@ -0,0 +1,38 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+Assertions
+
+***************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_assert.h"
+#include "ink_error.h"
+#include "ink_string.h"
+
+void
+_ink_assert(const char *expression, const char *file, int line)
+{
+  ink_fatal(1, "%s:%d: failed assert `%s`", file, line, expression);
+}
diff --git a/lib/ts/ink_assert.h b/lib/ts/ink_assert.h
new file mode 100644
index 00000000..ead610c0
--- /dev/null
+++ b/lib/ts/ink_assert.h
@@ -0,0 +1,74 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+Assertions
+
+***************************************************************************/
+#ifndef _INK_ASSERT_H
+#define _INK_ASSERT_H
+
+#include "ink_apidefs.h"
+#include "ink_error.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+/* don't use assert, no really DON'T use assert */
+#undef assert
+#define assert __DONT_USE_BARE_assert_USE_ink_assert__
+#undef _ASSERT_H
+#define _ASSERT_H
+#undef __ASSERT_H__
+#define __ASSERT_H__
+
+  inkcoreapi void _ink_assert(const char *a, const char *f, int l) TS_NORETURN;
+
+#if defined(DEBUG) || defined(__clang_analyzer__)
+#define ink_assert(EX) ( \
+            (void)(likely(EX) ? (void)0 : _ink_assert(#EX, __FILE__, __LINE__))\
+)
+#else
+#define ink_assert(EX) (void)(EX)
+#endif
+
+#define ink_release_assert(EX) ( \
+            (void)(likely(EX) ? (void)0 : _ink_assert(#EX, __FILE__, __LINE__)) \
+)
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+
+#endif /*_INK_ASSERT_H*/
+
+/* workaround a bug in the  stupid Sun preprocessor
+
+#undef assert
+#define assert __DONT_USE_BARE_assert_USE_ink_assert__
+#define _ASSERT_H
+#undef __ASSERT_H__
+#define __ASSERT_H__
+*/
diff --git a/lib/ts/ink_atomic.h b/lib/ts/ink_atomic.h
new file mode 100644
index 00000000..1fcd60a3
--- /dev/null
+++ b/lib/ts/ink_atomic.h
@@ -0,0 +1,177 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_atomic.h
+
+  This file defines atomic memory operations.
+
+  On a Sparc V9, ink_atomic.c must be compiled with gcc and requires
+  the argument "-Wa,-xarch=v8plus" to get the assembler to emit V9
+  instructions.
+
+
+ ****************************************************************************/
+
+#ifndef _ink_atomic_h_
+#define	_ink_atomic_h_
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <assert.h>
+#include "ink_defs.h"
+
+#include "ink_apidefs.h"
+#include "ink_mutex.h"
+
+typedef volatile int8_t vint8;
+typedef volatile int16_t vint16;
+typedef volatile int32_t vint32;
+typedef volatile int64_t vint64;
+typedef volatile uint64_t vuint64;
+typedef volatile long vlong;
+typedef volatile void *vvoidp;
+
+typedef vint8 *pvint8;
+typedef vint16 *pvint16;
+typedef vint32 *pvint32;
+typedef vint64 *pvint64;
+typedef vuint64 *pvuint64;
+typedef vlong *pvlong;
+typedef vvoidp *pvvoidp;
+
+/* GCC compiler >= 4.1 */
+#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 1)
+
+/* see http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Atomic-Builtins.html */
+
+// ink_atomic_swap(ptr, value)
+// Writes @value into @ptr, returning the previous value.
+template <typename T> static inline T
+ink_atomic_swap(volatile T * mem, T value) {
+  return __sync_lock_test_and_set(mem, value);
+}
+
+// ink_atomic_cas(mem, prev, next)
+// Atomically store the value @next into the pointer @mem, but only if the current value at @mem is @prev.
+// Returns true if @next was successfully stored.
+template <typename T> static inline bool
+ink_atomic_cas(volatile T * mem, T prev, T next) {
+  return __sync_bool_compare_and_swap(mem, prev, next);
+}
+
+// ink_atomic_increment(ptr, count)
+// Increment @ptr by @count, returning the previous value.
+template <typename Type, typename Amount> static inline Type
+ink_atomic_increment(volatile Type * mem, Amount count) {
+  return __sync_fetch_and_add(mem, (Type)count);
+}
+
+// ink_atomic_decrement(ptr, count)
+// Decrement @ptr by @count, returning the previous value.
+template <typename Type, typename Amount> static inline Type
+ink_atomic_decrement(volatile Type * mem, Amount count) {
+  return __sync_fetch_and_sub(mem, (Type)count);
+}
+
+// Special hacks for ARM 32-bit
+#if (defined(__arm__) || defined(__mips__)) && (SIZEOF_VOIDP == 4)
+extern ink_mutex __global_death;
+
+template<>
+inline int64_t
+ink_atomic_swap<int64_t>(pvint64 mem, int64_t value) {
+  int64_t old;
+  ink_mutex_acquire(&__global_death);
+  old = *mem;
+  *mem = value;
+  ink_mutex_release(&__global_death);
+  return old;
+}
+
+template<>
+inline bool
+ink_atomic_cas<int64_t>(pvint64 mem, int64_t old, int64_t new_value) {
+  int64_t curr;
+  ink_mutex_acquire(&__global_death);
+  curr = *mem;
+  if(old == curr) *mem = new_value;
+  ink_mutex_release(&__global_death);
+  if(old == curr) return 1;
+  return 0;
+}
+
+template<typename Amount> static inline int64_t
+ink_atomic_increment(pvint64 mem, Amount value) {
+  int64_t curr;
+  ink_mutex_acquire(&__global_death);
+  curr = *mem;
+  *mem = curr + value;
+  ink_mutex_release(&__global_death);
+  return curr;
+}
+
+template<typename Amount> static inline int64_t
+ink_atomic_decrement(pvint64 mem, Amount value) {
+  int64_t curr;
+  ink_mutex_acquire(&__global_death);
+  curr = *mem;
+  *mem = curr - value;
+  ink_mutex_release(&__global_death);
+  return curr;
+}
+
+template<typename Amount> static inline uint64_t
+ink_atomic_increment(pvuint64 mem, Amount value) {
+  uint64_t curr;
+  ink_mutex_acquire(&__global_death);
+  curr = *mem;
+  *mem = curr + value;
+  ink_mutex_release(&__global_death);
+  return curr;
+}
+
+template<typename Amount> static inline uint64_t
+ink_atomic_decrement(pvuint64 mem, Amount value) {
+  uint64_t curr;
+  ink_mutex_acquire(&__global_death);
+  curr = *mem;
+  *mem = curr - value;
+  ink_mutex_release(&__global_death);
+  return curr;
+}
+
+#endif /* Special hacks for ARM 32-bit */
+
+/* not used for Intel Processors which have sequential(esque) consistency */
+#define INK_WRITE_MEMORY_BARRIER
+#define INK_MEMORY_BARRIER
+
+
+#else /* not gcc > v4.1.2 */
+#error Need a compiler / libc that supports atomic operations, e.g. gcc v4.1.2 or later
+#endif
+
+#endif                          /* _ink_atomic_h_ */
diff --git a/lib/ts/ink_auth_api.cc b/lib/ts/ink_auth_api.cc
new file mode 100644
index 00000000..be82c46c
--- /dev/null
+++ b/lib/ts/ink_auth_api.cc
@@ -0,0 +1,82 @@
+/** @file
+
+  PE/TE authentication definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <time.h>
+#include <stdint.h>
+#include "ink_rand.h"
+#include "ink_code.h"
+#include "ink_auth_api.h"
+
+static int s_rand_seed = time(NULL); // + s_rand_seed;
+static InkRand
+s_rand_gen(ink_rand_r((unsigned int *) &s_rand_seed) ^ (uintptr_t) &s_rand_seed);
+
+inline uint32_t
+ink_get_rand_intrn()
+{
+  return s_rand_gen.random();
+}
+
+inline void
+ink_make_token_intrn(INK_AUTH_TOKEN * tok, const INK_AUTH_SEED * const *seeds, int slen)
+{
+  INK_DIGEST_CTX ctx;
+  ink_code_incr_md5_init(&ctx);
+  while (slen-- > 0) {
+    ink_code_incr_md5_update(&ctx, (const char *) seeds[slen]->data(), seeds[slen]->length());
+  }
+  ink_code_incr_md5_final((char *) &(tok->u8[0]), &ctx);
+}
+
+uint32_t
+ink_get_rand()
+{
+  return ink_get_rand_intrn();
+}
+
+void
+ink_make_token(INK_AUTH_TOKEN * tok, const INK_AUTH_TOKEN & mask, const INK_AUTH_SEED * const *seeds, int slen)
+{
+  ink_make_token_intrn(tok, seeds, slen);
+  for (int i = 3; i >= 0; i--)  // randomize masked bits
+    tok->u32[i] ^= mask.u32[i] & ink_get_rand_intrn();
+}
+
+uint32_t
+ink_make_token32(uint32_t mask, const INK_AUTH_SEED * const *seeds, int slen)
+{
+  INK_AUTH_TOKEN tok;
+  ink_make_token_intrn(&tok, seeds, slen);
+  tok.u64[1] ^= tok.u64[0];
+  tok.u32[3] ^= tok.u32[2];
+  return tok.u32[3] ^ (mask & ink_get_rand_intrn());
+}
+
+uint64_t
+ink_make_token64(uint64_t mask, const INK_AUTH_SEED * const *seeds, int slen)
+{
+  INK_AUTH_TOKEN tok;
+  ink_make_token_intrn(&tok, seeds, slen);
+  tok.u64[1] ^= tok.u64[0];
+  return tok.u64[1] ^ (mask & ((uint64_t) ink_get_rand_intrn() + (((uint64_t) ink_get_rand_intrn()) << 32)));
+}
diff --git a/lib/ts/ink_auth_api.h b/lib/ts/ink_auth_api.h
new file mode 100644
index 00000000..9fca069b
--- /dev/null
+++ b/lib/ts/ink_auth_api.h
@@ -0,0 +1,228 @@
+/** @file
+
+  PE/TE authentication definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_AUTH_API_H_INCLUDDED__
+#define __INK_AUTH_API_H_INCLUDDED__
+
+#include <sys/types.h>
+#include <string.h>
+
+#include "ink_defs.h"
+
+typedef union
+{
+  uint64_t u64[2];
+  uint32_t u32[4];
+  uint16_t u16[8];
+  uint8_t u8[16];
+} INK_AUTH_TOKEN;
+
+class INK_AUTH_SEED
+{
+public:
+  const void *data() const
+  {
+    return m_data;
+  }
+  unsigned length() const
+  {
+    return m_length;
+  }
+
+  inline INK_AUTH_SEED(const void *x, unsigned ln)
+  {
+    init(x, ln);
+  }
+
+  inline INK_AUTH_SEED(const uint8_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const uint16_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const uint32_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const uint64_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const int8_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const int16_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const int32_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+  inline INK_AUTH_SEED(const int64_t & x)
+  {
+    init((const void *) &x, sizeof(x));
+  }
+
+  inline INK_AUTH_SEED(const INK_AUTH_TOKEN & x)
+  {
+    init((const void *) &(x.u8[0]), sizeof(x.u8));
+  }
+
+  inline INK_AUTH_SEED(const char *str)
+  {
+    init((const void *) str, strlen((const char *) str));
+  }
+
+  inline INK_AUTH_SEED(const char *str, unsigned ln)
+  {
+    init((const void *) str, ln);
+  }
+
+  inline INK_AUTH_SEED(const unsigned char *str)
+  {
+    init((const void *) str, strlen((const char *) str));
+  }
+
+  inline INK_AUTH_SEED(const unsigned char *str, unsigned ln)
+  {
+    init((const void *) str, ln);
+  }
+
+protected:
+
+  void init(const void *d, unsigned l)
+  {
+    m_data = d;
+    m_length = l;
+  }
+
+  const void *m_data;
+  unsigned m_length;
+};
+
+
+void ink_make_token(INK_AUTH_TOKEN * tok, const INK_AUTH_TOKEN & mask, const INK_AUTH_SEED * const *seeds, int slen);
+
+uint32_t ink_make_token32(uint32_t mask, const INK_AUTH_SEED * const *seeds, int slen);
+uint64_t ink_make_token64(uint64_t mask, const INK_AUTH_SEED * const *seeds, int slen);
+
+uint32_t ink_get_rand();
+
+#define INK_TOKENS_EQUAL(m,t1,t2) ((((t1)^(t2))&(~(m))) == 0)
+
+//
+// Helper functions - wiil create INK_AUTH_SEEDs from base types on fly
+//
+inline uint32_t
+ink_make_token32(uint32_t mask, const INK_AUTH_SEED & s1)
+{
+  const INK_AUTH_SEED *s[] = { &s1 };
+  return ink_make_token32(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint32_t
+ink_make_token32(uint32_t mask, const INK_AUTH_SEED & s1, const INK_AUTH_SEED & s2)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2 };
+  return ink_make_token32(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint32_t
+ink_make_token32(uint32_t mask, const INK_AUTH_SEED & s1, const INK_AUTH_SEED & s2, const INK_AUTH_SEED & s3)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2, &s3 };
+  return ink_make_token32(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint32_t
+ink_make_token32(uint32_t mask,
+                 const INK_AUTH_SEED & s1, const INK_AUTH_SEED & s2, const INK_AUTH_SEED & s3, const INK_AUTH_SEED & s4)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2, &s3, &s4 };
+  return ink_make_token32(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint32_t
+ink_make_token32(uint32_t mask,
+                 const INK_AUTH_SEED & s1,
+                 const INK_AUTH_SEED & s2, const INK_AUTH_SEED & s3, const INK_AUTH_SEED & s4, const INK_AUTH_SEED & s5)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2, &s3, &s4, &s5 };
+  return ink_make_token32(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint64_t
+ink_make_token64(uint64_t mask, const INK_AUTH_SEED & s1)
+{
+  const INK_AUTH_SEED *s[] = { &s1 };
+  return ink_make_token64(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint64_t
+ink_make_token64(uint64_t mask, const INK_AUTH_SEED & s1, const INK_AUTH_SEED & s2)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2 };
+  return ink_make_token64(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint64_t
+ink_make_token64(uint64_t mask, const INK_AUTH_SEED & s1, const INK_AUTH_SEED & s2, const INK_AUTH_SEED & s3)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2, &s3 };
+  return ink_make_token64(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint64_t
+ink_make_token64(uint64_t mask,
+                 const INK_AUTH_SEED & s1, const INK_AUTH_SEED & s2, const INK_AUTH_SEED & s3, const INK_AUTH_SEED & s4)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2, &s3, &s4 };
+  return ink_make_token64(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline uint64_t
+ink_make_token64(uint64_t mask,
+                 const INK_AUTH_SEED & s1,
+                 const INK_AUTH_SEED & s2, const INK_AUTH_SEED & s3, const INK_AUTH_SEED & s4, const INK_AUTH_SEED & s5)
+{
+  const INK_AUTH_SEED *s[] = { &s1, &s2, &s3, &s4, &s5 };
+  return ink_make_token64(mask, s, sizeof(s) / sizeof(*s));
+}
+
+inline int64_t
+INK_AUTH_MAKE_INT_64(uint32_t h, uint32_t l)
+{
+  return int64_t((((uint64_t) h) << 32) + (uint32_t) l);
+}
+
+inline int64_t
+INK_AUTH_MAKE_INT_64(uint32_t u)
+{
+  return INK_AUTH_MAKE_INT_64(u, u);
+}
+
+#endif // #ifndef __INK_AUTH_API_H_INCLUDDED__
diff --git a/lib/ts/ink_autoconf.h.in b/lib/ts/ink_autoconf.h.in
new file mode 100644
index 00000000..43bddb3d
--- /dev/null
+++ b/lib/ts/ink_autoconf.h.in
@@ -0,0 +1,476 @@
+/* lib/ts/ink_autoconf.h.in.  Generated from configure.ac by autoheader.  */
+
+
+#ifndef _ink_autoconf_h
+#define _ink_autoconf_h
+
+
+/* Define if gethostbyname_r has the glibc style */
+#undef GETHOSTBYNAME_R_GLIBC2
+
+/* Define to 1 if you have the <alloca.h> header file. */
+#undef HAVE_ALLOCA_H
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#undef HAVE_ARPA_INET_H
+
+/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
+#undef HAVE_ARPA_NAMESER_COMPAT_H
+
+/* Define to 1 if you have the <arpa/nameser.h> header file. */
+#undef HAVE_ARPA_NAMESER_H
+
+/* define if the Boost library is available */
+#undef HAVE_BOOST
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#undef HAVE_CLOCK_GETTIME
+
+/* Define to 1 if you have the <cpio.h> header file. */
+#undef HAVE_CPIO_H
+
+/* Define to 1 if you have the <ctype.h> header file. */
+#undef HAVE_CTYPE_H
+
+/* Define to 1 if a SysV or X/Open compatible Curses library is present */
+#undef HAVE_CURSES
+
+/* Define to 1 if library supports color (enhanced functions) */
+#undef HAVE_CURSES_COLOR
+
+/* Define to 1 if library supports X/Open Enhanced functions */
+#undef HAVE_CURSES_ENHANCED
+
+/* Define to 1 if <curses.h> is present */
+#undef HAVE_CURSES_H
+
+/* Define to 1 if library supports certain obsolete features */
+#undef HAVE_CURSES_OBSOLETE
+
+/* Whether the compiler support C++11 */
+#undef HAVE_CXX_11
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the `EC_KEY_new_by_curve_name' function. */
+#undef HAVE_EC_KEY_NEW_BY_CURVE_NAME
+
+/* Define to 1 if you have the <editline/readline.h> header file. */
+#undef HAVE_EDITLINE_READLINE_H
+
+/* Define to 1 if you have the <endian.h> header file. */
+#undef HAVE_ENDIAN_H
+
+/* Define to 1 if you have the `epoll_ctl' function. */
+#undef HAVE_EPOLL_CTL
+
+/* Define to 1 if you have the `eventfd' function. */
+#undef HAVE_EVENTFD
+
+/* Define to 1 if you have the <execinfo.h> header file. */
+#undef HAVE_EXECINFO_H
+
+/* Define to 1 if you have the <expat.h> header file. */
+#undef HAVE_EXPAT_H
+
+/* Define to 1 if you have the <float.h> header file. */
+#undef HAVE_FLOAT_H
+
+/* Define to 1 if you have the <GeoIP.h> header file. */
+#undef HAVE_GEOIP_H
+
+/* Define to 1 if you have the `getpagesize' function. */
+#undef HAVE_GETPAGESIZE
+
+/* whether __gnu_cxx::hash_map is available */
+#undef HAVE_GNU_CXX_HASH_MAP
+
+/* Define to 1 if you have the <google/profiler.h> header file. */
+#undef HAVE_GOOGLE_PROFILER_H
+
+/* Define to 1 if you have the `hcreate_r' function. */
+#undef HAVE_HCREATE_R
+
+/* Define to 1 if you have the <history.h> header file. */
+#undef HAVE_HISTORY_H
+
+/* Define to 1 if you have the `hsearch_r' function. */
+#undef HAVE_HSEARCH_R
+
+/* Whether HWLOC_OBJ_PU is available */
+#undef HAVE_HWLOC_OBJ_PU
+
+/* Define to 1 if you have the <ifaddrs.h> header file. */
+#undef HAVE_IFADDRS_H
+
+/* Define to 1 if you have the `inotify_init' function. */
+#undef HAVE_INOTIFY_INIT
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <jemalloc/jemalloc.h> header file. */
+#undef HAVE_JEMALLOC_JEMALLOC_H
+
+/* Define to 1 if you have the `kqueue' function. */
+#undef HAVE_KQUEUE
+
+/* Define to 1 if you have the <libaio.h> header file. */
+#undef HAVE_LIBAIO_H
+
+/* Define to 1 if you have Expat library */
+#undef HAVE_LIBEXPAT
+
+/* Define to 1 if you have the <libgen.h> header file. */
+#undef HAVE_LIBGEN_H
+
+/* Compiling with pcre support */
+#undef HAVE_LIBPCRE
+
+/* Define if you have a readline compatible library */
+#undef HAVE_LIBREADLINE
+
+/* Using libxml2 */
+#undef HAVE_LIBXML2
+
+/* Define to 1 if you have the `lrand48_r' function. */
+#undef HAVE_LRAND48_R
+
+/* Define to 1 if you have the <lzma.h> header file. */
+#undef HAVE_LZMA_H
+
+/* Define to 1 if you have the <machine/endian.h> header file. */
+#undef HAVE_MACHINE_ENDIAN_H
+
+/* Define to 1 if you have the <malloc.h> header file. */
+#undef HAVE_MALLOC_H
+
+/* Define to 1 if you have the <math.h> header file. */
+#undef HAVE_MATH_H
+
+/* Define to 1 if you have the <mcheck.h> header file. */
+#undef HAVE_MCHECK_H
+
+/* Define to 1 if you have the `mcheck_pedantic' function. */
+#undef HAVE_MCHECK_PEDANTIC
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if the Ncurses library is present */
+#undef HAVE_NCURSES
+
+/* Define to 1 if the NcursesW library is present */
+#undef HAVE_NCURSESW
+
+/* Define to 1 if <ncursesw/curses.h> is present */
+#undef HAVE_NCURSESW_CURSES_H
+
+/* Define to 1 if <ncursesw.h> is present */
+#undef HAVE_NCURSESW_H
+
+/* Define to 1 if <ncurses/curses.h> is present */
+#undef HAVE_NCURSES_CURSES_H
+
+/* Define to 1 if <ncurses.h> is present */
+#undef HAVE_NCURSES_H
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#undef HAVE_NETDB_H
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#undef HAVE_NETINET_IN_H
+
+/* Define to 1 if you have the <netinet/in_systm.h> header file. */
+#undef HAVE_NETINET_IN_SYSTM_H
+
+/* Define to 1 if you have the <netinet/ip.h> header file. */
+#undef HAVE_NETINET_IP_H
+
+/* Define to 1 if you have the <netinet/ip_icmp.h> header file. */
+#undef HAVE_NETINET_IP_ICMP_H
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#undef HAVE_NETINET_TCP_H
+
+/* Define to 1 if you have the <net/ppp_defs.h> header file. */
+#undef HAVE_NET_PPP_DEFS_H
+
+/* Define to 1 if you have the <openssl/ec.h> header file. */
+#undef HAVE_OPENSSL_EC_H
+
+/* Define to 1 if you have the <openssl/ssl.h> header file. */
+#undef HAVE_OPENSSL_SSL_H
+
+/* Define to 1 if you have the <openssl/tls1.h> header file. */
+#undef HAVE_OPENSSL_TLS1_H
+
+/* Define to 1 if you have the <openssl/ts.h> header file. */
+#undef HAVE_OPENSSL_TS_H
+
+/* Define to 1 if you have the <pcre.h> header file. */
+#undef HAVE_PCRE_H
+
+/* Define to 1 if you have the <pcre/pcre.h> header file. */
+#undef HAVE_PCRE_PCRE_H
+
+/* Define to 1 if you have the `port_create' function. */
+#undef HAVE_PORT_CREATE
+
+/* Define to 1 if you have the `posix_fadvise' function. */
+#undef HAVE_POSIX_FADVISE
+
+/* Define to 1 if you have the `posix_fallocate' function. */
+#undef HAVE_POSIX_FALLOCATE
+
+/* Define to 1 if you have the `posix_madvise' function. */
+#undef HAVE_POSIX_MADVISE
+
+/* Define to 1 if you have the `posix_memalign' function. */
+#undef HAVE_POSIX_MEMALIGN
+
+/* Define to 1 if you have the <pthread.h> header file. */
+#undef HAVE_PTHREAD_H
+
+/* Define to 1 if you have the <pthread_np.h> header file. */
+#undef HAVE_PTHREAD_NP_H
+
+/* Whether the 1 parameter version of pthread_setname_np() is available */
+#undef HAVE_PTHREAD_SETNAME_NP_1
+
+/* Whether the 2 parameter version of pthread_setname_np() is available */
+#undef HAVE_PTHREAD_SETNAME_NP_2
+
+/* Whether the 2 parameter version of pthread_set_name_np() is available */
+#undef HAVE_PTHREAD_SET_NAME_NP_2
+
+/* Define to 1 if you have the <readline.h> header file. */
+#undef HAVE_READLINE_H
+
+/* Define if your readline library has \`add_history' */
+#undef HAVE_READLINE_HISTORY
+
+/* Define to 1 if you have the <readline/history.h> header file. */
+#undef HAVE_READLINE_HISTORY_H
+
+/* Define to 1 if you have the <readline/readline.h> header file. */
+#undef HAVE_READLINE_READLINE_H
+
+/* Define to 1 if you have the <sched.h> header file. */
+#undef HAVE_SCHED_H
+
+/* Define to 1 if you have the <search.h> header file. */
+#undef HAVE_SEARCH_H
+
+/* Define to 1 if you have the <siginfo.h> header file. */
+#undef HAVE_SIGINFO_H
+
+/* Define to 1 if you have the `srand48_r' function. */
+#undef HAVE_SRAND48_R
+
+/* Define to 1 if you have the `SSL_CTX_set_alpn_protos' function. */
+#undef HAVE_SSL_CTX_SET_ALPN_PROTOS
+
+/* Define to 1 if you have the `SSL_CTX_set_alpn_select_cb' function. */
+#undef HAVE_SSL_CTX_SET_ALPN_SELECT_CB
+
+/* Define to 1 if you have the `SSL_CTX_set_next_protos_advertised_cb'
+   function. */
+#undef HAVE_SSL_CTX_SET_NEXT_PROTOS_ADVERTISED_CB
+
+/* Define to 1 if you have the `SSL_CTX_set_next_proto_select_cb' function. */
+#undef HAVE_SSL_CTX_SET_NEXT_PROTO_SELECT_CB
+
+/* Define to 1 if you have the `SSL_get0_alpn_selected' function. */
+#undef HAVE_SSL_GET0_ALPN_SELECTED
+
+/* Define to 1 if you have the `SSL_get0_next_proto_negotiated' function. */
+#undef HAVE_SSL_GET0_NEXT_PROTO_NEGOTIATED
+
+/* Define to 1 if you have the `SSL_get_servername' function. */
+#undef HAVE_SSL_GET_SERVERNAME
+
+/* Define to 1 if you have the `SSL_select_next_proto' function. */
+#undef HAVE_SSL_SELECT_NEXT_PROTO
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#undef HAVE_STDBOOL_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* whether std::shared_ptr is available */
+#undef HAVE_STD_SHARED_PTR
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the `strlcat' function. */
+#undef HAVE_STRLCAT
+
+/* Define to 1 if you have the `strlcpy' function. */
+#undef HAVE_STRLCPY
+
+/* Define to 1 if you have the <stropts.h> header file. */
+#undef HAVE_STROPTS_H
+
+/* Whether struct sockaddr_in6 has the sin6_len member */
+#undef HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN
+
+/* Whether struct sockaddr_in has the sin_len member */
+#undef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+
+/* Whether struct sockaddr_in has the sa_len member */
+#undef HAVE_STRUCT_SOCKADDR_SA_LEN
+
+/* Define to 1 if `st_mtimespec.tv_nsec' is a member of `struct stat'. */
+#undef HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
+
+/* Define to 1 if `st_mtim.tv_nsec' is a member of `struct stat'. */
+#undef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+
+/* whether struct tcp_info is available */
+#undef HAVE_STRUCT_TCP_INFO
+
+/* Define to 1 if you have the `sysconf' function. */
+#undef HAVE_SYSCONF
+
+/* Define to 1 if you have the <sys/byteorder.h> header file. */
+#undef HAVE_SYS_BYTEORDER_H
+
+/* Define to 1 if you have the <sys/capability.h> header file. */
+#undef HAVE_SYS_CAPABILITY_H
+
+/* Define to 1 if you have the <sys/cpuset.h> header file. */
+#undef HAVE_SYS_CPUSET_H
+
+/* Define to 1 if you have the <sys/disklabel.h> header file. */
+#undef HAVE_SYS_DISKLABEL_H
+
+/* Define to 1 if you have the <sys/disk.h> header file. */
+#undef HAVE_SYS_DISK_H
+
+/* Define to 1 if you have the <sys/epoll.h> header file. */
+#undef HAVE_SYS_EPOLL_H
+
+/* Define to 1 if you have the <sys/eventfd.h> header file. */
+#undef HAVE_SYS_EVENTFD_H
+
+/* Define to 1 if you have the <sys/event.h> header file. */
+#undef HAVE_SYS_EVENT_H
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#undef HAVE_SYS_IOCTL_H
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#undef HAVE_SYS_MMAN_H
+
+/* Define to 1 if you have the <sys/mount.h> header file. */
+#undef HAVE_SYS_MOUNT_H
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#undef HAVE_SYS_PARAM_H
+
+/* Define to 1 if you have the <sys/prctl.h> header file. */
+#undef HAVE_SYS_PRCTL_H
+
+/* Define to 1 if you have the <sys/pset.h> header file. */
+#undef HAVE_SYS_PSET_H
+
+/* Define to 1 if you have the <sys/sockio.h> header file. */
+#undef HAVE_SYS_SOCKIO_H
+
+/* Define to 1 if you have the <sys/statfs.h> header file. */
+#undef HAVE_SYS_STATFS_H
+
+/* Define to 1 if you have the <sys/statvfs.h> header file. */
+#undef HAVE_SYS_STATVFS_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/sysctl.h> header file. */
+#undef HAVE_SYS_SYSCTL_H
+
+/* Define to 1 if you have the <sys/sysinfo.h> header file. */
+#undef HAVE_SYS_SYSINFO_H
+
+/* Define to 1 if you have the <sys/sysmacros.h> header file. */
+#undef HAVE_SYS_SYSMACROS_H
+
+/* Define to 1 if you have the <sys/systeminfo.h> header file. */
+#undef HAVE_SYS_SYSTEMINFO_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the <unordered_map> header file. */
+#undef HAVE_UNORDERED_MAP
+
+/* Define to 1 if you have the <unordered_set> header file. */
+#undef HAVE_UNORDERED_SET
+
+/* Define to 1 if you have the <values.h> header file. */
+#undef HAVE_VALUES_H
+
+/* Define to 1 if you have the <wait.h> header file. */
+#undef HAVE_WAIT_H
+
+/* Define to 1 if you have the <zlib.h> header file. */
+#undef HAVE_ZLIB_H
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#undef LT_OBJDIR
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+#undef NO_MINUS_C_MINUS_O
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* The size of `void*', as computed by sizeof. */
+#undef SIZEOF_VOIDP
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to 1 if `lex' declares `yytext' as a `char *' by default, not a
+   `char[]'. */
+#undef YYTEXT_POINTER
+
+
+
+#endif /* _ink_autoconf_h */
+
diff --git a/lib/ts/ink_base64.cc b/lib/ts/ink_base64.cc
new file mode 100644
index 00000000..ee87324a
--- /dev/null
+++ b/lib/ts/ink_base64.cc
@@ -0,0 +1,167 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * Base64 encoding and decoding as according to RFC1521.  Similar to uudecode.
+ *
+ * RFC 1521 requires inserting line breaks for long lines.  The basic web
+ * authentication scheme does not require them.  This implementation is
+ * intended for web-related use, and line breaks are not implemented.
+ *
+ * These routines return char*'s to malloc-ed strings.  The caller is
+ * responsible for freeing the strings.
+ */
+#include "libts.h"
+#include "ink_assert.h"
+
+// TODO: The code here seems a bit klunky, and could probably be improved a bit.
+
+bool
+ats_base64_encode(const unsigned char *inBuffer, size_t inBufferSize, char *outBuffer, size_t outBufSize, size_t *length)
+{
+  static const char _codes[66] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+  char *obuf = outBuffer;
+  char in_tail[4];
+
+  if (outBufSize < ATS_BASE64_ENCODE_DSTLEN(inBufferSize))
+    return false;
+
+  while (inBufferSize > 2) {
+    *obuf++ = _codes[(inBuffer[0] >> 2) & 077];
+    *obuf++ = _codes[((inBuffer[0] & 03) << 4) | ((inBuffer[1] >> 4) & 017)];
+    *obuf++ = _codes[((inBuffer[1] & 017) << 2) | ((inBuffer[2] >> 6) & 017)];
+    *obuf++ = _codes[inBuffer[2] & 077];
+
+    inBufferSize -= 3;
+    inBuffer += 3;
+  }
+
+  /*
+   * We've done all the input groups of three chars.  We're left
+   * with 0, 1, or 2 input chars.  We have to add zero-bits to the
+   * right if we don't have enough input chars.
+   * If 0 chars left, we're done.
+   * If 1 char left, form 2 output chars, and add 2 pad chars to output.
+   * If 2 chars left, form 3 output chars, add 1 pad char to output.
+   */
+  if (inBufferSize == 0) {
+    *obuf = '\0';
+    if (length)
+      *length = (obuf - outBuffer);
+  } else {
+    memset(in_tail, 0, sizeof(in_tail));
+    memcpy(in_tail, inBuffer, inBufferSize);
+
+    *(obuf) = _codes[(in_tail[0] >> 2) & 077];
+    *(obuf + 1) = _codes[((in_tail[0] & 03) << 4) | ((in_tail[1] >> 4) & 017)];
+    *(obuf + 2) = _codes[((in_tail[1] & 017) << 2) | ((in_tail[2] >> 6) & 017)];
+    *(obuf + 3) = _codes[in_tail[2] & 077];
+
+    if (inBufferSize == 1)
+      *(obuf + 2) = '=';
+    *(obuf + 3) = '=';
+    *(obuf + 4) = '\0';
+
+    if (length)
+      *length = (obuf + 4) - outBuffer;
+  }
+
+  return true;
+}
+
+bool
+ats_base64_encode(const char *inBuffer, size_t inBufferSize, char *outBuffer, size_t outBufSize, size_t *length)
+{
+  return ats_base64_encode((const unsigned char *)inBuffer, inBufferSize, outBuffer, outBufSize, length);
+}
+
+
+/*-------------------------------------------------------------------------
+  This is a reentrant, and malloc free implemetnation of ats_base64_decode.
+  -------------------------------------------------------------------------*/
+#ifdef DECODE
+#undef DECODE
+#endif
+
+#define DECODE(x) printableToSixBit[(unsigned char)x]
+#define MAX_PRINT_VAL 63
+
+/* Converts a printable character to it's six bit representation */
+const unsigned char printableToSixBit[256] = {
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 62, 64, 63,
+  52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64, 64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+  10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 63, 64, 26, 27,
+  28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
+};
+
+bool
+ats_base64_decode(const char *inBuffer, size_t inBufferSize, unsigned char *outBuffer, size_t outBufSize, size_t *length)
+{
+  size_t inBytes = 0;
+  size_t decodedBytes = 0;
+  unsigned char *buf = outBuffer;
+  int inputBytesDecoded = 0;
+
+  // Make sure there is sufficient space in the output buffer
+  if (outBufSize < ATS_BASE64_DECODE_DSTLEN(inBufferSize))
+    return false;
+
+  // Ignore any trailing ='s or other undecodable characters.
+  // TODO: Perhaps that ought to be an error instead?
+  while (printableToSixBit[(uint8_t)inBuffer[inBytes]] <= MAX_PRINT_VAL)
+    ++inBytes;
+
+  for (size_t i = 0; i < inBytes; i += 4) {
+    buf[0] = (unsigned char) (DECODE(inBuffer[0]) << 2 | DECODE(inBuffer[1]) >> 4);
+    buf[1] = (unsigned char) (DECODE(inBuffer[1]) << 4 | DECODE(inBuffer[2]) >> 2);
+    buf[2] = (unsigned char) (DECODE(inBuffer[2]) << 6 | DECODE(inBuffer[3]));
+
+    buf += 3;
+    inBuffer += 4;
+    decodedBytes += 3;
+    inputBytesDecoded += 4;
+  }
+
+  // Check to see if we decoded a multiple of 4 four
+  //    bytes
+  if ((inBytes - inputBytesDecoded) & 0x3) {
+    if (DECODE(inBuffer[-2]) > MAX_PRINT_VAL) {
+      decodedBytes -= 2;
+    } else {
+      decodedBytes -= 1;
+    }
+  }
+  outBuffer[decodedBytes] = '\0';
+
+  if (length)
+    *length = decodedBytes;
+
+  return true;
+}
diff --git a/lib/ts/ink_base64.h b/lib/ts/ink_base64.h
new file mode 100644
index 00000000..df72f527
--- /dev/null
+++ b/lib/ts/ink_base64.h
@@ -0,0 +1,49 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_base64_h_
+#define _ink_base64_h_
+
+/*
+ * Base64 encoding and decoding as according to RFC1521.  Similar to uudecode.
+ * See RFC1521 for specificiation.
+ *
+ * RFC 1521 requires inserting line breaks for long lines.  The basic web
+ * authentication scheme does not require them.  This implementation is
+ * intended for web-related use, and line breaks are not implemented.
+ *
+ * These routines return char*'s to malloc-ed strings.  The caller is
+ * responsible for freeing the strings.
+ *
+ */
+// Encodes / Decodes into user supplied buffer.  Returns number of bytes decoded
+bool ats_base64_encode(const char *inBuffer, size_t inBufferSize, char *outBuffer, size_t outBufSize, size_t *length);
+bool ats_base64_encode(const unsigned char *inBuffer, size_t inBufferSize, char *outBuffer, size_t outBufSize, size_t *length);
+
+bool ats_base64_decode(const char *inBuffer, size_t inBufferSize, unsigned char *outBuffer, size_t outBufSize, size_t *length);
+
+// Little helper functions to calculate minimum required output buffer for encoding/decoding.
+#define ATS_BASE64_ENCODE_DSTLEN(_length) ((_length * 8) / 6 + 4)
+#define ATS_BASE64_DECODE_DSTLEN(_length) (((_length + 3) / 4) * 3)
+
+#endif
diff --git a/lib/ts/ink_cap.cc b/lib/ts/ink_cap.cc
new file mode 100644
index 00000000..7091144b
--- /dev/null
+++ b/lib/ts/ink_cap.cc
@@ -0,0 +1,180 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+# include "ink_config.h"
+# include "Diags.h"
+# include "ink_cap.h"
+# include "ink_thread.h"
+
+# if TS_USE_POSIX_CAP
+#   include <sys/capability.h>
+#   include <sys/prctl.h>
+# endif
+
+# if !TS_USE_POSIX_CAP
+ink_mutex ElevateAccess::lock = INK_MUTEX_INIT;
+#endif
+
+void
+DebugCapabilities(char const* tag) {
+  if (is_debug_tag_set(tag)) {
+#   if TS_USE_POSIX_CAP
+      cap_t caps = cap_get_proc();
+      char* caps_text = cap_to_text(caps, 0);
+#   endif
+
+#     if TS_USE_POSIX_CAP
+    Debug(tag, "uid=%u, gid=%u, euid=%u, egid=%u, caps %s core=%s thread=0x%llx",
+	  static_cast<unsigned int>(getuid()),
+	  static_cast<unsigned int>(getgid()),
+	  static_cast<unsigned int>(geteuid()),
+	  static_cast<unsigned int>(getegid()),
+	  caps_text,
+	  prctl(PR_GET_DUMPABLE) != 1 ? "disabled" : "enabled",
+	  (unsigned long long)pthread_self() );
+    cap_free(caps_text);
+    cap_free(caps);
+#else
+    Debug(tag, "uid=%u, gid=%u, euid=%u, egid=%u",
+	  static_cast<unsigned int>(getuid()),
+	  static_cast<unsigned int>(getgid()),
+	  static_cast<unsigned int>(geteuid()),
+	  static_cast<unsigned int>(getegid()) );
+#endif
+  }
+}
+
+int
+PreserveCapabilities() {
+  int zret = 0;
+# if TS_USE_POSIX_CAP
+    zret = prctl(PR_SET_KEEPCAPS, 1);
+# endif
+  Debug("proxy_priv", "[PreserveCapabilities] zret : %d\n", zret);
+  return zret;
+}
+
+// Adjust the capabilities to only those needed.
+int
+RestrictCapabilities() {
+  int zret = 0; // return value.
+# if TS_USE_POSIX_CAP
+    cap_t caps = cap_init(); // start with nothing.
+    // Capabilities we need.
+    cap_value_t perm_list[] = { CAP_NET_ADMIN, CAP_NET_BIND_SERVICE, CAP_IPC_LOCK, CAP_DAC_OVERRIDE};
+    static int const PERM_CAP_COUNT = sizeof(perm_list)/sizeof(*perm_list);
+    cap_value_t eff_list[] = { CAP_NET_ADMIN, CAP_NET_BIND_SERVICE, CAP_IPC_LOCK};
+    static int const EFF_CAP_COUNT = sizeof(eff_list)/sizeof(*eff_list);
+
+    cap_set_flag(caps, CAP_PERMITTED, PERM_CAP_COUNT, perm_list, CAP_SET);
+    cap_set_flag(caps, CAP_EFFECTIVE, EFF_CAP_COUNT, eff_list, CAP_SET);
+    zret = cap_set_proc(caps);
+    cap_free(caps);
+#  endif
+  Debug("proxy_priv", "[RestrictCapabilities] zret : %d\n", zret);
+  return zret;
+}
+
+int
+EnableCoreFile(bool flag) {
+  int zret = 0;
+# if defined(linux)
+    int state = flag ? 1 : 0;
+    if (0 > (zret = prctl(PR_SET_DUMPABLE, state, 0, 0, 0))) {
+      Warning("Unable to set PR_DUMPABLE : %s", strerror(errno));
+    } else if (state != prctl(PR_GET_DUMPABLE)) {
+      zret = ENOSYS; // best guess
+      Warning("Call to set PR_DUMPABLE was ineffective");
+    }
+# endif  // linux check
+  Debug("proxy_priv", "[EnableCoreFile] zret : %d\n", zret);
+  return zret;
+}
+
+#if TS_USE_POSIX_CAP
+/** Control file access privileges to bypass DAC.
+    @parm state Use @c true to enable elevated privileges,
+    @c false to disable.
+    @return @c true if successful, @c false otherwise.
+
+    @internal After some pondering I decided that the file access
+    privilege was worth the effort of restricting. Unlike the network
+    privileges this can protect a host system from programming errors
+    by not (usually) permitting such errors to access arbitrary
+    files. This is particularly true since none of the config files
+    current enable this feature so it's not actually called. Still,
+    best to program defensively and have it available.
+ */
+bool
+elevateFileAccess(bool state)
+{
+  Debug("proxy_priv", "[elevateFileAccess] state : %d\n", state);
+
+  bool zret = false; // return value.
+  cap_t cap_state = cap_get_proc(); // current capabilities
+  // Make a list of the capabilities we changed.
+  cap_value_t cap_list[] = { CAP_DAC_OVERRIDE };
+  static int const CAP_COUNT = sizeof(cap_list)/sizeof(*cap_list);
+
+  cap_set_flag(cap_state, CAP_EFFECTIVE, CAP_COUNT, cap_list, state ? CAP_SET : CAP_CLEAR);
+  zret = (0 == cap_set_proc(cap_state));
+  cap_free(cap_state);
+  Debug("proxy_priv", "[elevateFileAccess] zret : %d\n", zret);
+  return zret;
+}
+#else
+//  bool removeRootPriv()
+//
+//    - Returns true on success
+//      and false on failure
+bool
+removeRootPriv(uid_t euid)
+{
+  if (seteuid(euid) < 0) {
+    Debug("proxy_priv", "[removeRootPriv] seteuid failed : %s\n", strerror(errno));
+    return false;
+  }
+
+  Debug("proxy_priv", "[removeRootPriv] removed root privileges.  Euid is %d\n", euid);
+  return true;
+}
+
+//  bool restoreRootPriv()
+//
+//    - Returns true on success
+//      and false on failure
+bool
+restoreRootPriv(uid_t *old_euid)
+{
+  if (old_euid)
+    *old_euid = geteuid();
+  if (seteuid(0) < 0) {
+    Debug("proxy_priv", "[restoreRootPriv] seteuid root failed : %s\n", strerror(errno));
+    return false;
+  }
+
+  Debug("proxy_priv", "[restoreRootPriv] restored root privileges.  Euid is %d\n", 0);
+
+  return true;
+}
+#endif
diff --git a/lib/ts/ink_cap.h b/lib/ts/ink_cap.h
new file mode 100644
index 00000000..49c1219c
--- /dev/null
+++ b/lib/ts/ink_cap.h
@@ -0,0 +1,101 @@
+/** @file
+
+  POSIX Capability related utilities.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+#if !defined (_ink_cap_h_)
+#define _ink_cap_h_
+#include "ink_mutex.h"
+
+/// Generate a debug message with the current capabilities for the process.
+extern void DebugCapabilities(
+  char const* tag ///< Debug message tag.
+);
+/// Set capabilities to persist across change of user id.
+/// @return 0 on success, non-zero otherwise.
+extern int PreserveCapabilities();
+/// Initialize and restrict the capabilities of a thread.
+/// @return 0 on success, non-zero otherwise.
+extern int RestrictCapabilities();
+
+/** Control generate of core file on crash.
+    @a flag sets whether core files are enabled on crash.
+    @return 0 on success, @c errno on failre.
+ */
+extern int EnableCoreFile(
+  bool flag ///< New enable state.
+);
+
+
+
+#if TS_USE_POSIX_CAP
+bool elevateFileAccess(bool);
+#else
+bool restoreRootPriv(uid_t *old_euid = NULL);
+bool removeRootPriv(uid_t euid);
+#endif
+
+
+class ElevateAccess {
+public:
+  ElevateAccess(const bool state): elevated(false), saved_uid(0) {
+    if (state == true) {
+      elevate();
+    }
+  }
+
+  void elevate() {
+#if TS_USE_POSIX_CAP
+    elevateFileAccess(true);
+#else
+    // Since we are setting a process-wide credential, we have to block any other thread
+    // attempting to elevate until this one demotes.
+    restoreRootPriv(&saved_uid);
+    ink_mutex_acquire(&lock);
+#endif
+    elevated = true;
+  }
+
+  void demote() {
+#if TS_USE_POSIX_CAP
+    elevateFileAccess(false);
+#else
+    removeRootPriv(saved_uid);
+    ink_mutex_release(&lock);
+#endif
+    elevated = false;
+  }
+
+  ~ElevateAccess() {
+    if (elevated == true) {
+      demote();
+    }
+  }
+
+private:
+  bool elevated;
+  uid_t saved_uid;
+#if !TS_USE_POSIX_CAP
+  static ink_mutex lock; // only one thread at a time can elevate
+#endif
+};
+
+#endif
diff --git a/lib/ts/ink_code.cc b/lib/ts/ink_code.cc
new file mode 100644
index 00000000..8cc80eb7
--- /dev/null
+++ b/lib/ts/ink_code.cc
@@ -0,0 +1,134 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include "ink_code.h"
+#include "ink_assert.h"
+
+
+/**
+  @brief Wrapper around MD5_Init
+*/
+int
+ink_code_incr_md5_init(INK_DIGEST_CTX * context) {
+  return MD5_Init(context);
+}
+
+/**
+  @brief Wrapper around MD5_Update
+*/
+int
+ink_code_incr_md5_update(INK_DIGEST_CTX * context, const char *input, int input_length) {
+  return MD5_Update(context, input, input_length);
+}
+
+/**
+  @brief Wrapper around MD5_Final
+*/
+int
+ink_code_incr_md5_final(char *sixteen_byte_hash_pointer, INK_DIGEST_CTX * context) {
+  return MD5_Final((unsigned char*)sixteen_byte_hash_pointer, context);
+}
+
+/**
+  @brief Helper that will init, update, and create a final MD5
+
+  @return always returns 0, maybe some error checking should be done
+*/
+int
+ink_code_md5(unsigned char *input, int input_length, unsigned char *sixteen_byte_hash_pointer)
+{
+  MD5_CTX context;
+
+  MD5_Init(&context);
+  MD5_Update(&context, input, input_length);
+  MD5_Final(sixteen_byte_hash_pointer, &context);
+
+  return (0);
+}
+
+/**
+  @brief Converts a MD5 to a null-terminated string
+
+  Externalizes an INK_MD5 as a null-terminated string into the first argument.
+  Side Effects: none
+  Reentrancy:     n/a.
+  Thread Safety:  safe.
+  Mem Management: stomps the passed dest char*.
+
+  @return returns the passed destination string ptr.
+*/
+/* reentrant version */
+char *
+ink_code_md5_stringify(char *dest33, const size_t destSize, const char *md5)
+{
+  ink_assert(destSize >= 33);
+
+  int i;
+  for (i = 0; i < 16; i++) {
+    // we check the size of the destination buffer above
+    // coverity[secure_coding]
+    sprintf(&(dest33[i * 2]), "%02X", md5[i]);
+  }
+  ink_assert(dest33[32] == '\0');
+  return (dest33);
+}                               /* End ink_code_stringify_md5(const char *md5) */
+
+/**
+  @brief Converts a MD5 to a null-terminated string
+
+  Externalizes an INK_MD5 as a null-terminated string into the first argument.
+  Does so without intenal procedure calls.
+  Side Effects: none.
+  Reentrancy:     n/a.
+  Thread Safety:  safe.
+  Mem Management: stomps the passed dest char*.
+
+  @return returns the passed destination string ptr.
+*/
+/* reentrant version */
+char *
+ink_code_md5_stringify_fast(char *dest33, const char *md5)
+{
+  int i;
+  char *d;
+
+  static char hex_digits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+
+  d = dest33;
+  for (i = 0; i < 16; i += 4) {
+    *(d + 0) = hex_digits[((unsigned char) md5[i + 0]) >> 4];
+    *(d + 1) = hex_digits[((unsigned char) md5[i + 0]) & 15];
+    *(d + 2) = hex_digits[((unsigned char) md5[i + 1]) >> 4];
+    *(d + 3) = hex_digits[((unsigned char) md5[i + 1]) & 15];
+    *(d + 4) = hex_digits[((unsigned char) md5[i + 2]) >> 4];
+    *(d + 5) = hex_digits[((unsigned char) md5[i + 2]) & 15];
+    *(d + 6) = hex_digits[((unsigned char) md5[i + 3]) >> 4];
+    *(d + 7) = hex_digits[((unsigned char) md5[i + 3]) & 15];
+    d += 8;
+  }
+  *d = '\0';
+  return (dest33);
+}                               /* End ink_code_stringify_md5_fast */
+
diff --git a/lib/ts/ink_code.h b/lib/ts/ink_code.h
new file mode 100644
index 00000000..8e9eb38d
--- /dev/null
+++ b/lib/ts/ink_code.h
@@ -0,0 +1,44 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_code_h_
+#define	_ink_code_h_
+
+#include "ink_apidefs.h"
+#include <openssl/md5.h>
+
+/* INK_MD5 context. */
+typedef MD5_CTX INK_DIGEST_CTX;
+
+/*
+  Wrappers around the MD5 functions, all of this should be depericated and just use the functions directly
+*/
+
+inkcoreapi int ink_code_md5(unsigned char *input, int input_length, unsigned char *sixteen_byte_hash_pointer);
+inkcoreapi char *ink_code_md5_stringify(char *dest33, const size_t destSize, const char *md5);
+inkcoreapi char *ink_code_md5_stringify_fast(char *dest33, const char *md5);
+
+inkcoreapi int ink_code_incr_md5_init(INK_DIGEST_CTX * context);
+inkcoreapi int ink_code_incr_md5_update(INK_DIGEST_CTX * context, const char *input, int input_length);
+inkcoreapi int ink_code_incr_md5_final(char *sixteen_byte_hash_pointer, INK_DIGEST_CTX * context);
+#endif
diff --git a/lib/ts/ink_config.h.in b/lib/ts/ink_config.h.in
new file mode 100644
index 00000000..9d884172
--- /dev/null
+++ b/lib/ts/ink_config.h.in
@@ -0,0 +1,121 @@
+/** @file
+
+  Some small general interest definitions. The general standard is to
+  prefix these defines with TS_.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_config_h
+#define	_ink_config_h
+
+// Note: All "defines" should be prefixed with TS_ when appropriate, please
+// don't use ATS_ any more.
+
+/* GENERATED FILE WARNING!  DO NOT EDIT ink_config.h
+ *
+ * You must modify ink_config.h.in instead.
+ *
+ */
+
+/* Include automake generated defines
+ */
+#include "ink_autoconf.h"
+
+#define BUILD_MACHINE                  "@build_machine@"
+#define BUILD_PERSON                   "@build_person@"
+#define BUILD_GROUP                    "@build_group@"
+
+/* Libraries */
+#define TS_HAS_LIBZ                    @zlibh@
+#define TS_HAS_LZMA                    @lzmah@
+#define TS_HAS_JEMALLOC                @jemalloch@
+#define TS_HAS_TCMALLOC                @has_tcmalloc@
+
+
+/* Features */
+#define TS_HAS_IN6_IS_ADDR_UNSPECIFIED @has_in6_is_addr_unspecified@
+#define TS_HAS_BACKTRACE               @has_backtrace@
+#define TS_HAS_PROFILER                @has_profiler@
+#define TS_USE_FAST_SDK                @use_fast_sdk@
+#define TS_USE_DIAGS                   @use_diags@
+#define TS_USE_EPOLL                   @use_epoll@
+#define TS_USE_KQUEUE                  @use_kqueue@
+#define TS_USE_PORT                    @use_port@
+#define TS_USE_POSIX_CAP               @use_posix_cap@
+#define TS_USE_TPROXY                  @use_tproxy@
+#define TS_HAS_SO_MARK                 @has_so_mark@
+#define TS_HAS_SPDY                    @has_spdy@
+#define TS_HAS_IP_TOS                  @has_ip_tos@
+#define TS_USE_HWLOC                   @use_hwloc@
+#define TS_USE_FREELIST                @use_freelist@
+#define TS_USE_RECLAIMABLE_FREELIST    @use_reclaimable_freelist@
+#define TS_USE_TLS_NPN                 @use_tls_npn@
+#define TS_USE_TLS_ALPN                @use_tls_alpn@
+#define TS_USE_TLS_SNI                 @use_tls_sni@
+#define TS_USE_TLS_ECKEY               @use_tls_eckey@
+#define TS_USE_LINUX_NATIVE_AIO        @use_linux_native_aio@
+#define TS_USE_INTERIM_CACHE           @has_interim_cache@
+
+
+/* OS API definitions */
+#define GETHOSTBYNAME_R_GLIBC2         @gethostbyname_r_glibc2@
+#define SIZEOF_VOID_POINTER            @ac_cv_sizeof_voidp@
+#define TS_IP_TRANSPARENT              @ip_transparent@
+#define TS_HAS_128BIT_CAS              @has_128bit_cas@
+
+/* API */
+#define TS_HAS_TESTS                   @has_tests@
+#define TS_HAS_WCCP                    @has_wccp@
+
+#define TS_MAX_THREADS_IN_EACH_THREAD_TYPE  @max_threads_per_type@
+#define TS_MAX_NUMBER_EVENT_THREADS  @max_event_threads@
+
+#define TS_MAX_HOST_NAME_LEN           @max_host_name_len@
+
+# define TS_MAX_API_STATS               @max_api_stats@
+
+
+# define SPLIT_DNS                      1
+# define HTTP_CACHE                     1
+
+/* Defaults for user / group */
+#define TS_PKGSYSUSER                   "@pkgsysuser@"
+#define TS_PKGSYSGROUP                  "@pkgsysgroup@"
+
+/* Various "build" defines */
+#define TS_BUILD_PREFIX "@prefix@"
+#define TS_BUILD_EXEC_PREFIX "@rel_exec_prefix@"
+#define TS_BUILD_BINDIR "@rel_bindir@"
+#define TS_BUILD_SBINDIR "@rel_sbindir@"
+#define TS_BUILD_SYSCONFDIR "@rel_sysconfdir@"
+#define TS_BUILD_DATADIR "@rel_datadir@"
+#define TS_BUILD_INCLUDEDIR "@rel_includedir@"
+#define TS_BUILD_LIBDIR "@rel_libdir@"
+#define TS_BUILD_LIBEXECDIR "@rel_libexecdir@"
+#define TS_BUILD_LOCALSTATEDIR "@rel_localstatedir@"
+#define TS_BUILD_RUNTIMEDIR "@rel_runtimedir@"
+#define TS_BUILD_LOGDIR "@rel_logdir@"
+#define TS_BUILD_MANDIR "@rel_mandir@"
+#define TS_BUILD_CACHEDIR "@rel_cachedir@"
+#define TS_BUILD_INFODIR "@rel_infodir@"
+
+#define TS_BUILD_DEFAULT_LOOPBACK_IFACE "@default_loopback_iface@"
+
+#endif /* _ink_config_h */
diff --git a/lib/ts/ink_defs.cc b/lib/ts/ink_defs.cc
new file mode 100644
index 00000000..beffbd9b
--- /dev/null
+++ b/lib/ts/ink_defs.cc
@@ -0,0 +1,138 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_defs.h
+  Some small general interest definitions
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "ink_platform.h"
+#if defined(linux) || defined(freebsd) || defined(darwin)
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#endif
+#if defined(linux)
+#include <sys/utsname.h>
+#endif      /* MAGIC_EDITING_TAG */
+
+int off = 0;
+int on = 1;
+
+#if TS_USE_HWLOC
+
+#include <hwloc.h>
+
+// Little helper to initialize the hwloc topology, once.
+static hwloc_topology_t
+setup_hwloc()
+{
+  hwloc_topology_t topology;
+
+  hwloc_topology_init(&topology);
+  hwloc_topology_load(topology);
+
+  return topology;
+}
+
+// Get the topology
+hwloc_topology_t
+ink_get_topology()
+{
+  static hwloc_topology_t topology = setup_hwloc();
+  return topology;
+}
+
+#endif
+
+int
+ink_sys_name_release(char *name, int namelen, char *release, int releaselen)
+{
+  *name = 0;
+  *release = 0;
+#if defined(freebsd) || defined(darwin)
+  int mib[2];
+  size_t len = namelen;
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_OSTYPE;
+
+  if (sysctl(mib, 2, name, &len, NULL, 0) == -1)
+    return -1;
+
+  len = releaselen;
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_OSRELEASE;
+
+  if (sysctl(mib, 2, release, &len, NULL, 0) == -1)
+    return -1;
+
+  return 0;
+#elif defined(linux)
+  struct utsname buf;
+  int n;
+
+  if (uname(&buf))
+    return -1;
+
+  n = strlen(buf.sysname);
+  if (namelen <= n)
+    n = namelen - 1;
+  memcpy(name, buf.sysname, n);
+  name[n] = 0;
+
+  n = strlen(buf.release);
+  if (releaselen <= n)
+    n = releaselen - 1;
+  memcpy(release, buf.release, n);
+  release[n] = 0;
+
+  return 0;
+#else
+  return -1;
+#endif
+}
+
+int
+ink_number_of_processors()
+{
+#if TS_USE_HWLOC
+#if HAVE_HWLOC_OBJ_PU
+  return hwloc_get_nbobjs_by_type(ink_get_topology(), HWLOC_OBJ_PU);
+#else
+  return hwloc_get_nbobjs_by_type(ink_get_topology(), HWLOC_OBJ_CORE);
+#endif
+#elif defined(freebsd)
+  int mib[2], n;
+  mib[0] = CTL_HW;
+  mib[1] = HW_NCPU;
+  size_t len = sizeof(n);
+  if (sysctl(mib, 2, &n, &len, NULL, 0) == -1)
+    return 1;
+  return n;
+#else
+  return sysconf(_SC_NPROCESSORS_ONLN); // number of processing units (includes Hyper Threading)
+#endif
+}
diff --git a/lib/ts/ink_defs.h b/lib/ts/ink_defs.h
new file mode 100644
index 00000000..ad728a52
--- /dev/null
+++ b/lib/ts/ink_defs.h
@@ -0,0 +1,165 @@
+/** @file
+
+  Some small general interest definitions
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_defs_h
+#define	_ink_defs_h
+
+
+#include "ink_config.h"
+#include <stddef.h>
+
+#ifdef HAVE_STDINT_H
+# ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+# endif
+# include <stdint.h>
+#else
+// TODO: Add "standard" int types?
+#endif
+
+#ifdef HAVE_INTTYPES_H
+# ifndef __STDC_FORMAT_MACROS
+#  define __STDC_FORMAT_MACROS 1
+# endif
+# include <inttypes.h>
+#else
+// TODO: add PRI*64 stuff?
+#endif
+
+#ifndef INT64_MIN
+#define INT64_MAX (9223372036854775807LL)
+#define INT64_MIN (-INT64_MAX -1LL)
+#define INTU32_MAX (4294967295U)
+#define INT32_MAX (2147483647)
+#define INT32_MIN (-2147483647-1)
+#endif
+// Hack for MacOSX, have to take this out of the group above.
+#ifndef INTU64_MAX
+#define INTU64_MAX (18446744073709551615ULL)
+#endif
+
+#define POSIX_THREAD
+#define POSIX_THREAD_10031c
+
+#ifndef ETIME
+#ifdef ETIMEDOUT
+#define ETIME ETIMEDOUT
+#endif
+#endif
+
+#ifndef ENOTSUP
+#ifdef EOPNOTSUPP
+#define ENOTSUP EOPNOTSUPP
+#endif
+#endif
+
+#if defined(darwin)
+#define RENTRENT_GETHOSTBYNAME
+#define RENTRENT_GETHOSTBYADDR
+#endif
+
+#define NUL '\0'
+
+// Need to use this to avoid problems when calling variadic functions
+// with many arguments. In such cases, a raw '0' or NULL can be
+// interpreted as 32 bits
+#define NULL_PTR static_cast<void*>(0)
+
+// Determine the element count for an array.
+#ifdef __cplusplus
+template<typename T, unsigned N>
+static inline unsigned
+countof(const T (&)[N]) {
+  return N;
+}
+#else
+#  define countof(x) ((unsigned)(sizeof(x)/sizeof((x)[0])))
+#endif
+
+#define SOCKOPT_ON ((char*)&on)
+#define SOCKOPT_OFF ((char*)&off)
+
+#ifndef ABS
+#define ABS(x) (((x) < 0) ? ( - (x)) : (x))
+#endif
+
+#ifndef MAX
+#define MAX(x,y) (((x) >= (y)) ? (x) : (y))
+#endif
+
+#ifndef MIN
+#define MIN(x,y) (((x) <= (y)) ? (x) : (y))
+#endif
+
+#define ATS_UNUSED __attribute__ ((unused))
+#define ATS_WARN_IF_UNUSED __attribute__ ((warn_unused_result))
+#define	ATS_UNUSED_RETURN(x)	if (x) {}
+
+#ifndef likely
+#define likely(x)	__builtin_expect (!!(x), 1)
+#endif
+#ifndef unlikely
+#define unlikely(x)	__builtin_expect (!!(x), 0)
+#endif
+
+
+#if TS_USE_HWLOC
+#  include <hwloc.h>
+#endif
+
+#ifndef ROUNDUP
+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
+#endif
+
+/* Types
+*/
+typedef void *(*VPVP_PFN) (void *);
+typedef void (*VVP_PFN) (void *);
+typedef void (*VV_PFN) (void);
+typedef void (*VI_PFN) (int);
+
+/* Variables
+*/
+extern int debug_level;
+extern int off;
+extern int on;
+
+/* Functions
+*/
+int ink_sys_name_release(char *name, int namelen, char *release, int releaselen);
+int ink_number_of_processors();
+
+#if TS_USE_HWLOC
+// Get the hardware topology
+hwloc_topology_t ink_get_topology();
+#endif
+
+/** Constants.
+ */
+#ifdef __cplusplus
+namespace ts {
+  static const int NO_FD = -1; ///< No or invalid file descriptor.
+}
+#endif
+
+#endif /*__ink_defs_h*/
diff --git a/lib/ts/ink_error.cc b/lib/ts/ink_error.cc
new file mode 100644
index 00000000..e1f929b9
--- /dev/null
+++ b/lib/ts/ink_error.cc
@@ -0,0 +1,259 @@
+/** @file
+
+  Error reporting routines
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#include "libts.h"
+#include "ink_error.h"
+#include "ink_stack_trace.h"
+
+#include <syslog.h>
+#include <signal.h>    /* MAGIC_EDITING_TAG */
+
+static int ink_dprintf_level = 0;
+
+/**
+  This routine causes process death. Some signal handler problems got
+  in the way of abort before, so this is an overzealous and somewhat
+  amusing implementation.
+
+*/
+void
+ink_die_die_die(int retval)
+{
+  abort();
+  _exit(retval);
+  exit(retval);
+}
+
+/**
+  This routine prints/logs an error message given the printf format
+  string in message_format, and the optional arguments.  The program is
+  then terminated with return_code.
+
+*/
+void
+ink_fatal_va(int return_code, const char *message_format, va_list ap)
+{
+  char extended_format[4096], message[4096];
+  snprintf(extended_format, sizeof(extended_format) - 1, "FATAL: %s", message_format);
+  extended_format[sizeof(extended_format) - 1] = 0;
+  vsnprintf(message, sizeof(message) - 1, extended_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "%s\n", message);
+  syslog(LOG_CRIT, "%s", message);
+  ink_stack_trace_dump();
+  ink_die_die_die(return_code);
+}
+
+void
+ink_fatal(int return_code, const char *message_format, ...)
+{
+  va_list ap;
+  va_start(ap, message_format);
+  ink_fatal_va(return_code, message_format, ap);
+  va_end(ap);
+}
+
+void
+ink_fatal_die(const char *message_format, ...)
+{
+  va_list ap;
+  va_start(ap, message_format);
+  ink_fatal_va(1, message_format, ap);
+  va_end(ap);
+}
+
+/**
+  This routine prints/logs an error message given the printf format
+  string in message_format, and the optional arguments.  The current
+  errno is also printed.  The program is then terminated with return_code.
+
+*/
+void
+ink_pfatal(int return_code, const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  char *errno_string;
+
+  va_start(ap, message_format);
+  errno_string = strerror(errno);
+  snprintf(extended_format, sizeof(extended_format) - 1, "FATAL: %s <last errno = %d (%s)>",
+           message_format, errno, (errno_string == NULL ? "unknown" : errno_string));
+  extended_format[sizeof(extended_format) - 1] = 0;
+  vsnprintf(message, sizeof(message) - 1, extended_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "%s\n", message);
+  syslog(LOG_CRIT, "%s", message);
+  va_end(ap);
+  ink_stack_trace_dump();
+  ink_die_die_die(return_code);
+}
+
+/**
+  This routine prints/logs a warning message given the printf format
+  string in message_format, and the optional arguments.
+
+*/
+void
+ink_warning(const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+  va_start(ap, message_format);
+  snprintf(extended_format, sizeof(extended_format) - 1, "WARNING: %s", message_format);
+  extended_format[sizeof(extended_format) - 1] = 0;
+  vsnprintf(message, sizeof(message) - 1, extended_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "%s\n", message);
+  syslog(LOG_WARNING, "%s", message);
+  va_end(ap);
+}
+
+/**
+  This routine prints/logs a warning message given the printf format
+  string in message_format, and the optional arguments.  The current
+  errno is also printed.
+
+*/
+void
+ink_pwarning(const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+  char *errno_string;
+
+  va_start(ap, message_format);
+  errno_string = strerror(errno);
+  snprintf(extended_format, sizeof(extended_format) - 1, "WARNING: %s <last errno = %d (%s)>",
+           message_format, errno, (errno_string == NULL ? "unknown" : errno_string));
+  extended_format[sizeof(extended_format) - 1] = 0;
+  vsnprintf(message, sizeof(message) - 1, extended_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "%s\n", message);
+  syslog(LOG_WARNING, "%s", message);
+  va_end(ap);
+}
+
+/**
+  This routine prints/logs a notice message given the printf format
+  string in message_format, and the optional arguments.
+
+*/
+void
+ink_notice(const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+  va_start(ap, message_format);
+  snprintf(extended_format, sizeof(extended_format) - 1, "NOTE: %s", message_format);
+  extended_format[sizeof(extended_format) - 1] = 0;
+  vsnprintf(message, sizeof(message) - 1, extended_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "%s\n", message);
+  syslog(LOG_NOTICE, "%s", message);
+  va_end(ap);
+}
+
+/**
+  This routine prints/logs a message given the printf format string in
+  message_format, and the optional arguments.
+
+*/
+void
+ink_eprintf(const char *message_format, ...)
+{
+  va_list ap;
+  char message[4096];
+  va_start(ap, message_format);
+  vsnprintf(message, sizeof(message) - 1, message_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "ERROR: %s\n", message);
+  va_end(ap);
+}
+
+/**
+  This routine prints/logs a warning message given the printf format
+  string in message_format, and the optional arguments.
+
+*/
+void
+ink_error(const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[2048], message[4096];
+  va_start(ap, message_format);
+  snprintf(extended_format, sizeof(extended_format) - 1, "ERROR: %s", message_format);
+  extended_format[sizeof(extended_format) - 1] = 0;
+  vsnprintf(message, sizeof(message) - 1, extended_format, ap);
+  message[sizeof(message) - 1] = 0;
+  fprintf(stderr, "%s\n", message);
+  syslog(LOG_ERR, "%s", message);
+  va_end(ap);
+}
+
+/**
+  This routine prints/logs a message given the printf format string in
+  message_format, and the optional arguments.
+
+*/
+void
+ink_dprintf(int debug_level, const char *message_format, ...)
+{
+  char message[4096];
+  va_list ap;
+  if (debug_level <= ink_dprintf_level) {
+    va_start(ap, message_format);
+    vsnprintf(message, sizeof(message) - 1, message_format, ap);
+    message[sizeof(message) - 1] = 0;
+    fprintf(stderr, "%s\n", message);
+    va_end(ap);
+  }
+}
+
+/**
+  Set output level for ink_dprintf() function. For debugging purposes
+  only!
+
+*/
+int
+ink_set_dprintf_level(int debug_level)
+{
+  int old_ink_dprintf_level = ink_dprintf_level;
+  if ((ink_dprintf_level = debug_level) < 0)
+    ink_dprintf_level = 0;
+  return old_ink_dprintf_level;
+}
+
+/**
+  Initiates a SEGV the old-fashioned way, it earns it.
+
+*/
+void
+ink_segv()
+{
+  char *addr = NULL;
+  *addr = 0;
+  ink_die_die_die(1); // just keep clang happy ... it thinks we return from here ...
+}
diff --git a/lib/ts/ink_error.h b/lib/ts/ink_error.h
new file mode 100644
index 00000000..2cc96bf5
--- /dev/null
+++ b/lib/ts/ink_error.h
@@ -0,0 +1,63 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_error.h
+
+  Error reporting routines for libts
+
+ ****************************************************************************/
+
+#ifndef _ink_error_h_
+#define	_ink_error_h_
+
+#include <stdarg.h>
+#include "ink_platform.h"
+
+#include "ink_apidefs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif                          /* __cplusplus */
+
+inkcoreapi void ink_fatal_va(int return_code, const char *message_format, va_list ap) TS_NORETURN;
+void ink_fatal(int return_code, const char *message_format, ...) TS_PRINTFLIKE(2, 3) TS_NORETURN;
+void ink_pfatal(int return_code, const char *message_format, ...) TS_PRINTFLIKE(2, 3) TS_NORETURN;
+void ink_warning(const char *message_format, ...) TS_PRINTFLIKE(1, 2);
+void ink_pwarning(const char *message_format, ...) TS_PRINTFLIKE(1, 2);
+void ink_notice(const char *message_format, ...) TS_PRINTFLIKE(1, 2);
+void ink_eprintf(const char *message_format, ...) TS_PRINTFLIKE(1, 2);
+void ink_error(const char *message_format, ...) TS_PRINTFLIKE(1, 2);
+void ink_dprintf(int debug_level, const char *message_format, ...) TS_PRINTFLIKE(2, 3);
+void ink_fatal_die(const char *message_format, ...) TS_PRINTFLIKE(1, 2) TS_NORETURN;
+
+void ink_die_die_die(int retval) TS_NORETURN;
+void ink_segv() TS_NORETURN;
+int ink_set_dprintf_level(int debug_level);
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+
+#endif
diff --git a/lib/ts/ink_exception.h b/lib/ts/ink_exception.h
new file mode 100644
index 00000000..85b5d126
--- /dev/null
+++ b/lib/ts/ink_exception.h
@@ -0,0 +1,71 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *  ink_exception.h
+ *
+ *  Contains some global exception classes.
+ *
+ *  $Date: 2003-06-01 18:36:43 $
+ *
+ *
+ */
+
+
+class Exception
+{
+};
+
+class OSException:public Exception
+{
+};
+
+class IOException:public OSException
+{
+};
+
+class FileOpenException:public IOException
+{
+};
+class FileStatException:public IOException
+{
+};
+class FileSeekException:public IOException
+{
+};
+class FileReadException:public IOException
+{
+};
+class FileWriteException:public IOException
+{
+};
+class FileCloseException:public IOException
+{
+};
+
+class MemoryMapException:public OSException
+{
+};
+class MemoryUnmapException:public OSException
+{
+};
diff --git a/lib/ts/ink_file.cc b/lib/ts/ink_file.cc
new file mode 100644
index 00000000..41891f1a
--- /dev/null
+++ b/lib/ts/ink_file.cc
@@ -0,0 +1,372 @@
+/** @file
+
+  File manipulation routines for libts
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+int
+ink_fputln(FILE * stream, const char *s)
+{
+  if (stream && s) {
+    int rc = fputs(s, stream);
+    if (rc > 0)
+      rc += fputc('\n', stream);
+    return rc;
+  }
+  else
+    return -EINVAL;
+}                               /* End ink_fgets */
+
+/*---------------------------------------------------------------------------*
+
+  int ink_file_fd_readline(int fd, int bufsz, char *buf)
+
+  This routine reads bytes from <fd> into the buffer pointed to by <buf>.
+  The reading stops when (a) a LF is read into the buffer, (b) the end of
+  file is reached, or (c) <bufsz> - 1 bytes are read.  The <bufsz> parameter
+  must be >= 2.
+
+  The data pointed to by <buf> is always NUL terminated, and the LF is
+  left in the data.  This routine can be used as a replacement for
+  fgets-like functions.  If the <bufsz> is too small to hold a complete line,
+  the partial line will be stored, and subsequent reads will read more data.
+
+  This routine returns the number of bytes read, 0 on end of file, or
+  a negative errno on error.
+
+ *---------------------------------------------------------------------------*/
+
+int
+ink_file_fd_readline(int fd, int bufsz, char *buf)
+{
+  char c;
+  int i = 0;
+
+  if (bufsz < 2)
+    return (-EINVAL);           /* bufsz must by >= 2 */
+
+  while (i < bufsz - 1) {       /* leave 1 byte for NUL */
+    int n = read(fd, &c, 1);    /* read 1 byte */
+    if (n == 0)
+      break;                    /* EOF */
+    if (n < 0)
+      return (n);               /* error */
+    buf[i++] = c;               /* store in buffer */
+    if (c == '\n')
+      break;                    /* stop if stored a LF */
+  }
+
+  buf[i] = '\0';                /* NUL terminate buffer */
+  return (i);                   /* number of bytes read */
+}                               /* End ink_file_fd_readline */
+
+/* Write until NUL */
+int
+ink_file_fd_writestring(int fd, const char *buf)
+{
+  int len, i = 0;
+
+  if (buf && (len = strlen(buf)) > 0 && (i = (int) write(fd, buf, (size_t) len) != len))
+    i = -1;
+
+  return i;                     /* return chars written */
+}                               /* End ink_file_fd_writestring */
+
+int
+ink_filepath_merge(char *path, int pathsz, const char *rootpath, const char *addpath, int flags)
+{
+  size_t rootlen; // is the length of the src rootpath
+  size_t maxlen;  // maximum total path length
+  size_t keptlen; // is the length of the retained rootpath
+  size_t pathlen; // is the length of the result path
+  size_t seglen;  // is the end of the current segment
+  char curdir[PATH_NAME_MAX];
+
+  /* Treat null as an empty path.
+  */
+  if (!addpath)
+    addpath = "";
+
+  if (addpath[0] == '/') {
+    // If addpath is rooted, then rootpath is unused.
+    // Ths violates any INK_FILEPATH_SECUREROOTTEST and
+    // INK_FILEPATH_NOTABSOLUTE flags specified.
+    //
+    if (flags & INK_FILEPATH_SECUREROOTTEST)
+      return EACCES; // APR_EABOVEROOT;
+    if (flags & INK_FILEPATH_NOTABSOLUTE)
+      return EISDIR; // APR_EABSOLUTE;
+
+    // If INK_FILEPATH_NOTABOVEROOT wasn't specified,
+    // we won't test the root again, it's ignored.
+    // Waste no CPU retrieving the working path.
+    //
+    if (!rootpath && !(flags & INK_FILEPATH_NOTABOVEROOT))
+      rootpath = "";
+  }
+  else {
+    // If INK_FILEPATH_NOTABSOLUTE is specified, the caller
+    // requires a relative result.  If the rootpath is
+    // ommitted, we do not retrieve the working path,
+    // if rootpath was supplied as absolute then fail.
+    //
+    if (flags & INK_FILEPATH_NOTABSOLUTE) {
+      if (!rootpath)
+        rootpath = "";
+      else if (rootpath[0] == '/')
+        return EISDIR; //APR_EABSOLUTE;
+    }
+  }
+  if (!rootpath) {
+    // Start with the current working path.  This is bass akwards,
+    // but required since the compiler (at least vc) doesn't like
+    // passing the address of a char const* for a char** arg.
+    //
+    if (!getcwd(curdir, sizeof(curdir))) {
+      return errno;
+    }
+    rootpath = curdir;
+  }
+  rootlen = strlen(rootpath);
+  maxlen = rootlen + strlen(addpath) + 4; // 4 for slashes at start, after
+                                          // root, and at end, plus trailing
+                                          // null
+  if (maxlen > (size_t)pathsz) {
+    return E2BIG; //APR_ENAMETOOLONG;
+  }
+  if (addpath[0] == '/') {
+    // Ignore the given root path, strip off leading
+    // '/'s to a single leading '/' from the addpath,
+    // and leave addpath at the first non-'/' character.
+    //
+    keptlen = 0;
+    while (addpath[0] == '/')
+      ++addpath;
+    path[0] = '/';
+    pathlen = 1;
+  }
+  else {
+    // If both paths are relative, fail early
+    //
+    if (rootpath[0] != '/' && (flags & INK_FILEPATH_NOTRELATIVE))
+      return EBADF; //APR_ERELATIVE;
+
+    // Base the result path on the rootpath
+    //
+    keptlen = rootlen;
+    memcpy(path, rootpath, rootlen);
+
+    // Always '/' terminate the given root path
+    //
+    if (keptlen && path[keptlen - 1] != '/') {
+      path[keptlen++] = '/';
+    }
+    pathlen = keptlen;
+  }
+
+  while (*addpath) {
+    // Parse each segment, find the closing '/'
+    //
+    const char *next = addpath;
+    while (*next && (*next != '/')) {
+      ++next;
+    }
+    seglen = next - addpath;
+
+    if (seglen == 0 || (seglen == 1 && addpath[0] == '.')) {
+      // noop segment (/ or ./) so skip it
+      //
+    }
+    else if (seglen == 2 && addpath[0] == '.' && addpath[1] == '.') {
+      // backpath (../)
+      if (pathlen == 1 && path[0] == '/') {
+        // Attempt to move above root.  Always die if the
+        // INK_FILEPATH_SECUREROOTTEST flag is specified.
+        //
+        if (flags & INK_FILEPATH_SECUREROOTTEST) {
+          return EACCES; //APR_EABOVEROOT;
+        }
+
+        // Otherwise this is simply a noop, above root is root.
+        // Flag that rootpath was entirely replaced.
+        //
+        keptlen = 0;
+      }
+      else if (pathlen == 0
+               || (pathlen == 3
+               && !memcmp(path + pathlen - 3, "../", 3))
+               || (pathlen  > 3
+               && !memcmp(path + pathlen - 4, "/../", 4))) {
+        // Path is already backpathed or empty, if the
+        // INK_FILEPATH_SECUREROOTTEST.was given die now.
+        //
+        if (flags & INK_FILEPATH_SECUREROOTTEST) {
+          return EACCES; //APR_EABOVEROOT;
+        }
+
+        // Otherwise append another backpath, including
+        // trailing slash if present.
+        //
+        memcpy(path + pathlen, "../", *next ? 3 : 2);
+        pathlen += *next ? 3 : 2;
+      }
+      else {
+        // otherwise crop the prior segment
+        //
+        do {
+            --pathlen;
+        } while (pathlen && path[pathlen - 1] != '/');
+      }
+
+      // Now test if we are above where we started and back up
+      // the keptlen offset to reflect the added/altered path.
+      //
+      if (pathlen < keptlen) {
+        if (flags & INK_FILEPATH_SECUREROOTTEST) {
+          return EACCES; //APR_EABOVEROOT;
+        }
+        keptlen = pathlen;
+      }
+    }
+    else {
+        // An actual segment, append it to the destination path
+        //
+      if (*next) {
+        seglen++;
+      }
+      memcpy(path + pathlen, addpath, seglen);
+      pathlen += seglen;
+    }
+
+    // Skip over trailing slash to the next segment
+    //
+    if (*next) {
+      ++next;
+    }
+
+    addpath = next;
+  }
+  path[pathlen] = '\0';
+  if (pathlen > 1 && path[pathlen - 1] == '/') {
+    // Trim trailing slash unless requested
+    size_t es = strlen(addpath);
+    if (es == 0 || addpath[es - 1] != '/') {
+      --pathlen;
+      path[pathlen] = '\0';
+    }
+  }
+
+  // keptlen will be the rootlen unless the addpath contained
+  // backpath elements.  If so, and INK_FILEPATH_NOTABOVEROOT
+  // is specified (INK_FILEPATH_SECUREROOTTEST was caught above),
+  // compare the original root to assure the result path is
+  // still within given root path.
+  //
+  if ((flags & INK_FILEPATH_NOTABOVEROOT) && keptlen < rootlen) {
+    if (strncmp(rootpath, path, rootlen)) {
+      return EACCES; //APR_EABOVEROOT;
+    }
+    if (rootpath[rootlen - 1] != '/'
+        && path[rootlen] && path[rootlen] != '/') {
+      return EACCES; //APR_EABOVEROOT;
+    }
+  }
+
+  return 0;
+}
+
+int
+ink_filepath_make(char *path, int pathsz, const char *rootpath, const char *addpath)
+{
+  size_t rootlen; // is the length of the src rootpath
+  size_t maxlen;  // maximum total path length
+
+  /* Treat null as an empty path.
+  */
+  if (!addpath)
+    addpath = "";
+
+  if (addpath[0] == '/') {
+    // If addpath is rooted, then rootpath is unused.
+    ink_strlcpy(path, addpath, pathsz);
+    return 0;
+  }
+  if (!rootpath || !*rootpath) {
+    // If there's no rootpath return the addpath
+    ink_strlcpy(path, addpath, pathsz);
+    return 0;
+  }
+  rootlen = strlen(rootpath);
+  maxlen  = strlen(addpath) + 2;
+  if (maxlen > (size_t)pathsz) {
+    *path = '\0';
+    return (int)maxlen;
+  }
+  ink_strlcpy(path, rootpath, pathsz);
+  path += rootlen;
+  pathsz -= rootlen;
+  if (*(path - 1) != '/') {
+    *(path++) = '/';
+    --pathsz;
+  }
+  ink_strlcpy(path, addpath, pathsz);
+  return 0;
+}
+
+int
+ink_file_fd_zerofill(int fd, off_t size)
+{
+  // Clear the file by truncating it to zero and then to the desired size.
+  if (ftruncate(fd, 0) < 0) {
+    return errno;
+  }
+
+  // ZFS does not implement posix_fallocate() and fails with EINVAL. As a general workaround,
+  // just fall back to ftrucate if the preallocation fails.
+#if HAVE_POSIX_FALLOCATE
+  if (posix_fallocate(fd, 0, size) == 0) {
+    return 0;
+  }
+#endif
+
+  if (ftruncate(fd, size) < 0) {
+    return errno;
+  }
+
+  return 0;
+}
+
+bool
+ink_file_is_directory(const char * path)
+{
+  struct stat sbuf;
+
+  if (stat(path, &sbuf) == -1) {
+    return false;
+  }
+
+  return S_ISDIR(sbuf.st_mode);
+}
diff --git a/lib/ts/ink_file.h b/lib/ts/ink_file.h
new file mode 100644
index 00000000..c6429d70
--- /dev/null
+++ b/lib/ts/ink_file.h
@@ -0,0 +1,106 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_file.h
+
+  File manipulation routines for libts
+
+ ****************************************************************************/
+
+#ifndef _ink_file_h_
+#define	_ink_file_h_
+
+#include "ink_config.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <dirent.h>
+
+#if HAVE_SYS_STATFS_H
+#include <sys/statfs.h>
+#endif
+
+#if HAVE_SYS_STATVFS_H
+#include <sys/statvfs.h>
+#endif
+
+// Darwin keeps statafs(2) in <sys/mount.h> ...
+#if HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+
+/*===========================================================================*
+
+                            Function Prototypes
+
+ *===========================================================================*/
+
+// Cause ink_filepath_merge to fail if addpath is above rootpath
+//
+#define INK_FILEPATH_NOTABOVEROOT   0x01
+// internal: Only meaningful with INK_FILEPATH_NOTABOVEROOT
+#define INK_FILEPATH_SECUREROOTTEST 0x02
+// Cause ink_filepath_merge to fail if addpath is above rootpath,
+// even given a rootpath /foo/bar and an addpath ../bar/bash
+//
+#define INK_FILEPATH_SECUREROOT     0x03
+// Fail ink_filepath_merge if the merged path is relative
+#define INK_FILEPATH_NOTRELATIVE    0x04
+// Fail ink_filepath_merge if the merged path is absolute
+#define INK_FILEPATH_NOTABSOLUTE    0x08
+// Return the file system's native path format (e.g. path delimiters
+// of ':' on MacOS9, '\' on Win32, etc.)
+#define INK_FILEPATH_NATIVE         0x10
+// Resolve the true case of existing directories and file elements
+// of addpath, (resolving any aliases on Win32) and append a proper
+// trailing slash if a directory
+//
+#define INK_FILEPATH_TRUENAME       0x20
+
+int ink_fputln(FILE *stream, const char *s);
+int ink_file_fd_readline(int fd, int bufsize, char *buf);
+int ink_file_fd_writestring(int fd, const char *buf);
+int ink_filepath_merge(char *buf, int bufsz, const char *rootpath,
+                       const char *addpath, int flags = INK_FILEPATH_TRUENAME);
+/**
+ Add addpath to the rootpath prepending slash if rootpath
+ is not NULL and doesn't end with the slash already and put the
+ result into path buffer. If the buffer is too small to hold the
+ resulting string, required size is returned. On success zero is returned
+ */
+int ink_filepath_make(char *path, int pathsz, const char *rootpath,
+                      const char *addpath);
+
+/**
+ Resize and zero-fill the given file.
+ Returns 0 on success, errno on failure.
+ */
+int ink_file_fd_zerofill(int fd, off_t size);
+
+/**
+ Return true if the path is a directory.
+ */
+bool ink_file_is_directory(const char * path);
+#endif // _ink_file_h_
diff --git a/lib/ts/ink_hash_table.cc b/lib/ts/ink_hash_table.cc
new file mode 100644
index 00000000..3eb8e8de
--- /dev/null
+++ b/lib/ts/ink_hash_table.cc
@@ -0,0 +1,459 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_hash_table.c
+
+  This file implements hash tables.  This allows us to provide alternative
+  implementations of hash tables.
+
+ ****************************************************************************/
+
+#include "ink_error.h"
+#include "ink_hash_table.h"
+#include "ink_memory.h"
+
+/*===========================================================================*
+
+  This is the Tcl implementation of InkHashTable
+
+ *===========================================================================*/
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTable *ink_hash_table_create(InkHashTableKeyType key_type)
+
+  This routine allocates an initializes an empty InkHashTable, and returns a
+  pointer to the new table.  The <key_type> argument indicates whether keys
+  are represented as strings, or as words.  Legal values are
+  InkHashTableKeyType_String and InkHashTableKeyType_Word.
+
+ *---------------------------------------------------------------------------*/
+
+InkHashTable *
+ink_hash_table_create(InkHashTableKeyType key_type)
+{
+  InkHashTable *ht_ptr;
+  Tcl_HashTable *tcl_ht_ptr;
+  int tcl_key_type;
+
+  tcl_ht_ptr = (Tcl_HashTable*)ats_malloc(sizeof(Tcl_HashTable));
+
+  tcl_key_type = -1;
+  if (key_type == InkHashTableKeyType_String)
+    tcl_key_type = TCL_STRING_KEYS;
+  else if (key_type == InkHashTableKeyType_Word)
+    tcl_key_type = TCL_ONE_WORD_KEYS;
+  else
+    ink_fatal(1, "ink_hash_table_create: bad key_type %d", key_type);
+
+  Tcl_InitHashTable(tcl_ht_ptr, tcl_key_type);
+
+  ht_ptr = (InkHashTable *) tcl_ht_ptr;
+  return (ht_ptr);
+}                               /* End ink_hash_table_create */
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_destroy(InkHashTable *ht_ptr)
+
+  This routine takes a hash table <ht_ptr>, and frees its storage.
+
+ *---------------------------------------------------------------------------*/
+
+InkHashTable *
+ink_hash_table_destroy(InkHashTable * ht_ptr)
+{
+  Tcl_HashTable *tcl_ht_ptr;
+
+  tcl_ht_ptr = (Tcl_HashTable *) ht_ptr;
+  Tcl_DeleteHashTable(tcl_ht_ptr);
+  ats_free(tcl_ht_ptr);
+  return (InkHashTable *) 0;
+}                               /* End ink_hash_table_destroy */
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_destroy_and_free_values(InkHashTable *ht_ptr)
+
+  This routine takes a hash table <ht_ptr>, and frees its storage, after
+  first calling ink_free on all the values.  You better darn well make sure the
+  values have been dynamically allocated.
+
+ *---------------------------------------------------------------------------*/
+
+static int
+_ink_hash_table_free_entry_value(InkHashTable * ht_ptr, InkHashTableEntry * e)
+{
+  InkHashTableValue value;
+
+  value = ink_hash_table_entry_value(ht_ptr, e);
+  if (value != NULL) {
+    ats_free(value);
+  }
+
+  return (0);
+}                               /* End _ink_hash_table_free_entry_value */
+
+
+static int
+_ink_hash_table_xfree_entry_value(InkHashTable * ht_ptr, InkHashTableEntry * e)
+{
+  InkHashTableValue value;
+
+  value = ink_hash_table_entry_value(ht_ptr, e);
+  if (value != NULL) {
+    ats_free(value);
+  }
+
+  return (0);
+}                               /* End _ink_hash_table_xfree_entry_value */
+
+InkHashTable *
+ink_hash_table_destroy_and_free_values(InkHashTable * ht_ptr)
+{
+  ink_hash_table_map(ht_ptr, _ink_hash_table_free_entry_value);
+  ink_hash_table_destroy(ht_ptr);
+  return (InkHashTable *) 0;
+}                               /* End ink_hash_table_destroy_and_free_values */
+
+InkHashTable *
+ink_hash_table_destroy_and_xfree_values(InkHashTable * ht_ptr)
+{
+  ink_hash_table_map(ht_ptr, _ink_hash_table_xfree_entry_value);
+  ink_hash_table_destroy(ht_ptr);
+  return (InkHashTable *) 0;
+}                               /* End ink_hash_table_destroy_and_xfree_values */
+
+
+/*---------------------------------------------------------------------------*
+
+  int ink_hash_table_isbound(InkHashTable *ht_ptr, InkHashTableKey key)
+
+  This routine takes a hash table <ht_ptr>, a key <key>, and returns 1
+  if the value <key> is bound in the hash table, 0 otherwise.
+
+ *---------------------------------------------------------------------------*/
+
+int
+ink_hash_table_isbound(InkHashTable * ht_ptr, const char *key)
+{
+  InkHashTableEntry *he_ptr;
+
+  he_ptr = ink_hash_table_lookup_entry(ht_ptr, key);
+  return ((he_ptr == NULL) ? 0 : 1);
+}                               /* End ink_hash_table_isbound */
+
+
+/*---------------------------------------------------------------------------*
+  int ink_hash_table_lookup(InkHashTable *ht_ptr,
+		            InkHashTableKey key,
+			    InkHashTableValue *value_ptr)
+
+  This routine takes a hash table <ht_ptr>, a key <key>, and stores the
+  value bound to the key by reference through <value_ptr>.  If no binding is
+  found, 0 is returned, else 1 is returned.
+
+ *---------------------------------------------------------------------------*/
+
+int
+ink_hash_table_lookup(InkHashTable *ht_ptr, const char* key, InkHashTableValue *value_ptr)
+{
+  InkHashTableEntry *he_ptr;
+  InkHashTableValue value;
+
+  he_ptr = ink_hash_table_lookup_entry(ht_ptr, key);
+  if (he_ptr == NULL)
+    return (0);
+
+  value = ink_hash_table_entry_value(ht_ptr, he_ptr);
+  *value_ptr = value;
+  return (1);
+}                               /* End ink_hash_table_lookup */
+
+
+/*---------------------------------------------------------------------------*
+
+  int ink_hash_table_delete(InkHashTable *ht_ptr, InkHashTableKey key)
+
+  This routine takes a hash table <ht_ptr> and a key <key>, and deletes the
+  binding for the <key> in the hash table if it exists.  This routine
+  returns 1 if the key existed, else 0.
+
+ *---------------------------------------------------------------------------*/
+
+int
+ink_hash_table_delete(InkHashTable * ht_ptr, const char *key)
+{
+  char *tcl_key;
+  Tcl_HashTable *tcl_ht_ptr;
+  Tcl_HashEntry *tcl_he_ptr;
+
+  tcl_key = (char *) key;
+  tcl_ht_ptr = (Tcl_HashTable *) ht_ptr;
+  tcl_he_ptr = Tcl_FindHashEntry(tcl_ht_ptr, tcl_key);
+
+  if (!tcl_he_ptr)
+    return (0);
+  Tcl_DeleteHashEntry(tcl_he_ptr);
+
+  return (1);
+}                               /* End ink_hash_table_delete */
+
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTableEntry *ink_hash_table_lookup_entry(InkHashTable *ht_ptr,
+  						 InkHashTableKey key)
+
+  This routine takes a hash table <ht_ptr> and a key <key>, and returns the
+  entry matching the key, or NULL otherwise.
+
+ *---------------------------------------------------------------------------*/
+
+InkHashTableEntry *
+ink_hash_table_lookup_entry(InkHashTable * ht_ptr, const char* key)
+{
+  Tcl_HashTable *tcl_ht_ptr;
+  Tcl_HashEntry *tcl_he_ptr;
+  InkHashTableEntry *he_ptr;
+
+  tcl_ht_ptr = (Tcl_HashTable *) ht_ptr;
+  tcl_he_ptr = Tcl_FindHashEntry(tcl_ht_ptr, key);
+  he_ptr = (InkHashTableEntry *) tcl_he_ptr;
+
+  return (he_ptr);
+}                               /* End ink_hash_table_lookup_entry */
+
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTableEntry *ink_hash_table_get_entry(InkHashTable *ht_ptr,
+					      InkHashTableKey key,
+					      int *new_value)
+
+  This routine takes a hash table <ht_ptr> and a key <key>, and returns the
+  entry matching the key, or creates, binds, and returns a new entry.
+  If the binding already existed, *new is set to 0, else 1.
+
+ *---------------------------------------------------------------------------*/
+
+InkHashTableEntry *
+ink_hash_table_get_entry(InkHashTable *ht_ptr, const char *key, int *new_value)
+{
+  Tcl_HashTable *tcl_ht_ptr;
+  Tcl_HashEntry *tcl_he_ptr;
+
+  tcl_ht_ptr = (Tcl_HashTable *) ht_ptr;
+  tcl_he_ptr = Tcl_CreateHashEntry(tcl_ht_ptr, key, new_value);
+
+  if (tcl_he_ptr == NULL) {
+    ink_fatal(1, "%s: Tcl_CreateHashEntry returned NULL", "ink_hash_table_get_entry");
+  }
+
+  return ((InkHashTableEntry *) tcl_he_ptr);
+}                               /* End ink_hash_table_get_entry */
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_set_entry(InkHashTable *ht_ptr,
+				InkHashTableEntry *he_ptr,
+				InkHashTableValue value)
+
+  This routine takes a hash table <ht_ptr>, a hash table entry <he_ptr>,
+  and changes the value field of the entry to <value>.
+
+ *---------------------------------------------------------------------------*/
+
+void
+ink_hash_table_set_entry(InkHashTable * ht_ptr, InkHashTableEntry * he_ptr, InkHashTableValue value)
+{
+  (void) ht_ptr;
+  ClientData tcl_value;
+  Tcl_HashEntry *tcl_he_ptr;
+
+  tcl_value = (ClientData) value;
+  tcl_he_ptr = (Tcl_HashEntry *) he_ptr;
+  Tcl_SetHashValue(tcl_he_ptr, tcl_value);
+}                               /* End ink_hash_table_set_entry */
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_insert(InkHashTable *ht_ptr,
+			     InkHashTableKey key,
+			     InkHashTableValue value)
+
+  This routine takes a hash table <ht_ptr>, a key <key>, and binds the value
+  <value> to the key, replacing any previous binding, if any.
+
+ *---------------------------------------------------------------------------*/
+
+void
+ink_hash_table_insert(InkHashTable * ht_ptr, const char *key, InkHashTableValue value)
+{
+  int new_value;
+  InkHashTableEntry *he_ptr;
+
+  he_ptr = ink_hash_table_get_entry(ht_ptr, key, &new_value);
+  ink_hash_table_set_entry(ht_ptr, he_ptr, value);
+}                               /* End ink_hash_table_insert */
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_map(InkHashTable *ht_ptr, InkHashTableEntryFunction map)
+
+  This routine takes a hash table <ht_ptr> and a function pointer <map>, and
+  applies the function <map> to each entry in the hash table.  The function
+  <map> should return 0 normally, otherwise the iteration will stop.
+
+ *---------------------------------------------------------------------------*/
+
+void
+ink_hash_table_map(InkHashTable * ht_ptr, InkHashTableEntryFunction map)
+{
+  int retcode;
+  InkHashTableEntry *e;
+  InkHashTableIteratorState state;
+
+  for (e = ink_hash_table_iterator_first(ht_ptr, &state); e != NULL; e = ink_hash_table_iterator_next(ht_ptr, &state)) {
+    retcode = (*map) (ht_ptr, e);
+    if (retcode != 0)
+      break;
+  }
+}                               /* End ink_hash_table_map */
+
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTableKey ink_hash_table_entry_key(InkHashTable *ht_ptr,
+			                   InkHashTableEntry *entry_ptr)
+
+  This routine takes a hash table <ht_ptr> and a pointer to a hash table
+  entry <entry_ptr>, and returns the key portion of the entry.
+
+ *---------------------------------------------------------------------------*/
+
+InkHashTableKey
+ink_hash_table_entry_key(InkHashTable * ht_ptr, InkHashTableEntry * entry_ptr)
+{
+  char *tcl_key;
+
+  tcl_key = (char*) Tcl_GetHashKey((Tcl_HashTable *) ht_ptr, (Tcl_HashEntry *) entry_ptr);
+  return ((InkHashTableKey) tcl_key);
+}                               /* End ink_hash_table_entry_key */
+
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTableValue ink_hash_table_entry_value(InkHashTable *ht_ptr,
+			                       InkHashTableEntry *entry_ptr)
+
+  This routine takes a hash table <ht_ptr> and a pointer to a hash table
+  entry <entry_ptr>, and returns the value portion of the entry.
+
+ *---------------------------------------------------------------------------*/
+
+InkHashTableValue
+ink_hash_table_entry_value(InkHashTable * ht_ptr, InkHashTableEntry * entry_ptr)
+{
+  (void) ht_ptr;
+  ClientData tcl_value;
+
+  tcl_value = Tcl_GetHashValue((Tcl_HashEntry *) entry_ptr);
+  return ((InkHashTableValue) tcl_value);
+}                               /* End ink_hash_table_entry_value */
+
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_dump_strings(InkHashTable *ht_ptr)
+
+  This routine takes a hash table of string values, and dumps the keys and
+  string values to stdout.  It is the caller's responsibility to ensure that
+  both the key and the value are NUL terminated strings.
+
+ *---------------------------------------------------------------------------*/
+
+static int
+DumpStringEntry(InkHashTable * ht_ptr, InkHashTableEntry * e)
+{
+  InkHashTableKey key;
+  InkHashTableValue value;
+
+  key = ink_hash_table_entry_key(ht_ptr, e);
+  value = ink_hash_table_entry_value(ht_ptr, e);
+
+  fprintf(stderr, "key = '%s', value = '%s'\n", (char *) key, (char *) value);
+
+  return (0);
+}
+
+
+void
+ink_hash_table_dump_strings(InkHashTable * ht_ptr)
+{
+  ink_hash_table_map(ht_ptr, DumpStringEntry);
+}                               /* End ink_hash_table_dump_strings */
+
+
+/*---------------------------------------------------------------------------*
+
+  void ink_hash_table_replace_string(InkHashTable *ht_ptr,
+				     char *string_key, char *string_value)
+
+  This conveninece routine is intended for hash tables with keys of type
+  InkHashTableKeyType_String, and values being dynamically allocated strings.
+  This routine binds <string_key> to a copy of <string_value>, and any
+  previous bound value is deallocated.
+
+ *---------------------------------------------------------------------------*/
+
+void
+ink_hash_table_replace_string(InkHashTable * ht_ptr, char *string_key, char *string_value)
+{
+  int new_value;
+  char *old_str;
+  InkHashTableEntry *he_ptr;
+
+  /*
+   * The following line will flag a type-conversion warning on the
+   * DEC Alpha, but that message can be ignored, since we're
+   * still dealing with pointers, and we aren't loosing any bits.
+   */
+
+  he_ptr = ink_hash_table_get_entry(ht_ptr, (InkHashTableKey) string_key, &new_value);
+  if (new_value == 0) {
+    old_str = (char *) ink_hash_table_entry_value(ht_ptr, he_ptr);
+    if (old_str)
+      ats_free(old_str);
+  }
+
+  ink_hash_table_set_entry(ht_ptr, he_ptr, (InkHashTableValue)(ats_strdup(string_value)));
+}                               /* End ink_hash_table_replace_string */
diff --git a/lib/ts/ink_hash_table.h b/lib/ts/ink_hash_table.h
new file mode 100644
index 00000000..ec3dc56e
--- /dev/null
+++ b/lib/ts/ink_hash_table.h
@@ -0,0 +1,149 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_hash_table.h
+
+  This file implements hash tables.  This allows us to provide alternative
+  implementations of hash tables.
+
+ ****************************************************************************/
+
+#ifndef _ink_hash_table_h_
+#define	_ink_hash_table_h_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+#include "ink_apidefs.h"
+
+/*===========================================================================*
+
+  This is the Tcl implementation of InkHashTable
+
+ *===========================================================================*/
+
+#include <tcl.h>
+
+  typedef Tcl_HashTable InkHashTable;
+  typedef Tcl_HashEntry InkHashTableEntry;
+  typedef char *InkHashTableKey;
+  typedef ClientData InkHashTableValue;
+  typedef Tcl_HashSearch InkHashTableIteratorState;
+
+  typedef int (*InkHashTableEntryFunction) (InkHashTable * ht, InkHashTableEntry * entry);
+
+  /* Types of InkHashTable Keys */
+
+  typedef enum
+  { InkHashTableKeyType_String, InkHashTableKeyType_Word }
+  InkHashTableKeyType;
+
+/*===========================================================================*
+
+                            Function Prototypes
+
+ *===========================================================================*/
+
+  InkHashTable *ink_hash_table_create(InkHashTableKeyType key_type);
+  InkHashTable *ink_hash_table_destroy(InkHashTable * ht_ptr);
+  InkHashTable *ink_hash_table_destroy_and_free_values(InkHashTable * ht_ptr);
+  InkHashTable *ink_hash_table_destroy_and_xfree_values(InkHashTable * ht_ptr);
+  inkcoreapi int ink_hash_table_isbound(InkHashTable * ht_ptr, const char *key);
+  inkcoreapi int ink_hash_table_lookup(InkHashTable * ht_ptr, const char *key, InkHashTableValue * value_ptr);
+  inkcoreapi int ink_hash_table_delete(InkHashTable * ht_ptr, const char *key);
+  InkHashTableEntry *ink_hash_table_lookup_entry(InkHashTable * ht_ptr, const char *key);
+  InkHashTableEntry *ink_hash_table_get_entry(InkHashTable * ht_ptr, const char *key, int *new_value);
+  void ink_hash_table_set_entry(InkHashTable * ht_ptr, InkHashTableEntry * he_ptr, InkHashTableValue value);
+  inkcoreapi void ink_hash_table_insert(InkHashTable * ht_ptr, const char *key, InkHashTableValue value);
+  void ink_hash_table_map(InkHashTable * ht_ptr, InkHashTableEntryFunction map);
+  InkHashTableKey ink_hash_table_entry_key(InkHashTable * ht_ptr, InkHashTableEntry * entry_ptr);
+  inkcoreapi InkHashTableValue ink_hash_table_entry_value(InkHashTable * ht_ptr, InkHashTableEntry * entry_ptr);
+  void ink_hash_table_dump_strings(InkHashTable * ht_ptr);
+  void ink_hash_table_replace_string(InkHashTable * ht_ptr, InkHashTableKey key, char *str);
+
+/* inline functions declarations */
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTableEntry *ink_hash_table_iterator_first
+	(InkHashTable *ht_ptr, InkHashTableIteratorState *state_ptr)
+
+  This routine takes a hash table <ht_ptr>, creates some iterator state
+  stored through <state_ptr>, and returns a pointer to the first hash table
+  entry.  The iterator state is used by InkHashTableIteratorNext() to proceed
+  through the rest of the entries.
+
+ *---------------------------------------------------------------------------*/
+
+  static inline InkHashTableEntry *ink_hash_table_iterator_first
+    (InkHashTable * ht_ptr, InkHashTableIteratorState * state_ptr)
+  {
+    Tcl_HashTable *tcl_ht_ptr;
+    Tcl_HashSearch *tcl_search_state_ptr;
+    Tcl_HashEntry *tcl_he_ptr;
+    InkHashTableEntry *he_ptr;
+
+      tcl_ht_ptr = (Tcl_HashTable *) ht_ptr;
+      tcl_search_state_ptr = (Tcl_HashSearch *) state_ptr;
+
+      tcl_he_ptr = Tcl_FirstHashEntry(tcl_ht_ptr, tcl_search_state_ptr);
+      he_ptr = (InkHashTableEntry *) tcl_he_ptr;
+
+      return (he_ptr);
+  }                             /* End ink_hash_table_iterator_first */
+
+
+/*---------------------------------------------------------------------------*
+
+  InkHashTableEntry *ink_hash_table_iterator_next(InkHashTable *ht_ptr,
+					          InkHashTableIteratorState *state_ptr)
+
+  This routine takes a hash table <ht_ptr> and a pointer to iterator state
+  initialized by a previous call to InkHashTableIteratorFirst(), and returns
+  a pointer to the next InkHashTableEntry, or NULL if no entries remain.
+
+ *---------------------------------------------------------------------------*/
+
+  static inline InkHashTableEntry *ink_hash_table_iterator_next(InkHashTable * ht_ptr,
+                                                                InkHashTableIteratorState * state_ptr)
+  {
+    (void) ht_ptr;
+    Tcl_HashSearch *tcl_search_state_ptr;
+    Tcl_HashEntry *tcl_he_ptr;
+    InkHashTableEntry *he_ptr;
+
+    tcl_search_state_ptr = (Tcl_HashSearch *) state_ptr;
+
+    tcl_he_ptr = Tcl_NextHashEntry(tcl_search_state_ptr);
+    he_ptr = (InkHashTableEntry *) tcl_he_ptr;
+
+    return (he_ptr);
+  }                             /* End ink_hash_table_iterator_next */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif /* #ifndef _ink_hash_table_h_ */
diff --git a/lib/ts/ink_hrtime.cc b/lib/ts/ink_hrtime.cc
new file mode 100644
index 00000000..6d2870b8
--- /dev/null
+++ b/lib/ts/ink_hrtime.cc
@@ -0,0 +1,222 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+
+  ink_hrtime.cc
+
+  This file contains code supporting the Inktomi high-resolution timer.
+**************************************************************************/
+
+#include "ink_hrtime.h"
+#include "ink_assert.h"
+#include "ink_defs.h"
+
+#if defined(freebsd)
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#endif
+#include <sys/time.h>
+
+char *
+int64_to_str(char *buf, unsigned int buf_size, int64_t val, unsigned int *total_chars, unsigned int req_width, char pad_char)
+{
+  const unsigned int local_buf_size = 32;
+  char local_buf[local_buf_size];
+  bool using_local_buffer = false;
+  bool negative = false;
+  char *out_buf;
+
+  if (buf_size < 22) {
+    // int64_t may not fit in provided buffer, use the local one
+    out_buf = &local_buf[local_buf_size - 1];
+    using_local_buffer = true;
+  } else {
+    out_buf = &buf[buf_size - 1];
+  }
+
+  unsigned int num_chars = 1;   // includes eos
+  *out_buf-- = 0;
+
+  if (val < 0) {
+    val = -val;
+    negative = true;
+  }
+
+  if (val < 10) {
+    *out_buf-- = '0' + (char) val;
+    ++num_chars;
+  } else {
+    do {
+      *out_buf-- = (char) (val % 10) + '0';
+      val /= 10;
+      ++num_chars;
+    } while (val);
+  }
+
+  // pad with pad_char if needed
+  //
+  if (req_width) {
+    // add minus sign if padding character is not 0
+    if (negative && pad_char != '0') {
+      *out_buf = '-';
+      ++num_chars;
+    } else {
+      out_buf++;
+    }
+    if (req_width > buf_size)
+      req_width = buf_size;
+    unsigned int num_padding = 0;
+    if (req_width > num_chars) {
+      num_padding = req_width - num_chars;
+      switch (num_padding) {
+      case 3:
+        *--out_buf = pad_char;
+      case 2:
+        *--out_buf = pad_char;
+      case 1:
+        *--out_buf = pad_char;
+        break;
+      default:
+        for (unsigned int i = 0; i < num_padding; ++i, *--out_buf = pad_char);
+      }
+      num_chars += num_padding;
+    }
+    // add minus sign if padding character is 0
+    if (negative && pad_char == '0') {
+      if (num_padding) {
+        *out_buf = '-';         // overwrite padding
+      } else {
+        *--out_buf = '-';
+        ++num_chars;
+      }
+    }
+  } else if (negative) {
+    *out_buf = '-';
+    ++num_chars;
+  } else {
+    out_buf++;
+  }
+
+  if (using_local_buffer) {
+    if (num_chars <= buf_size) {
+      memcpy(buf, out_buf, num_chars);
+      out_buf = buf;
+    } else {
+      // data does not fit return NULL
+      out_buf = NULL;
+    }
+  }
+
+  if (total_chars)
+    *total_chars = num_chars;
+  return out_buf;
+}
+
+
+int
+squid_timestamp_to_buf(char *buf, unsigned int buf_size, long timestamp_sec, long timestamp_usec)
+{
+  int res;
+  const unsigned int tmp_buf_size = 32;
+  char tmp_buf[tmp_buf_size];
+
+  unsigned int num_chars_s;
+  char *ts_s = int64_to_str(tmp_buf, tmp_buf_size - 4, timestamp_sec, &num_chars_s, 0, '0');
+  ink_assert(ts_s);
+
+  // convert milliseconds
+  //
+  tmp_buf[tmp_buf_size - 5] = '.';
+  int ms = timestamp_usec / 1000;
+  unsigned int num_chars_ms;
+  char ATS_UNUSED *ts_ms = int64_to_str(&tmp_buf[tmp_buf_size - 4], 4, ms, &num_chars_ms, 4, '0');
+  ink_assert(ts_ms && num_chars_ms == 4);
+
+  unsigned int chars_to_write = num_chars_s + 3;        // no eos
+
+  if (buf_size >= chars_to_write) {
+    memcpy(buf, ts_s, chars_to_write);
+    res = chars_to_write;
+  } else {
+    res = -((int) chars_to_write);
+  }
+
+  return res;
+}
+
+#ifdef USE_TIME_STAMP_COUNTER_HRTIME
+uint32_t
+init_hrtime_TCS()
+{
+  int freqlen = sizeof(hrtime_freq);
+  if (sysctlbyname("machdep.tsc_freq", &hrtime_freq, (size_t *) & freqlen, NULL, 0) < 0) {
+    perror("sysctl: machdep.tsc_freq");
+    exit(1);
+  }
+  hrtime_freq_float = (double) 1000000000 / (double) hrtime_freq;
+  return hrtime_freq;
+}
+
+double hrtime_freq_float = 0.5; // 500 Mhz
+uint32_t hrtime_freq = init_hrtime_TCS();
+#endif
+
+#ifdef NEED_HRTIME_BASIS
+timespec timespec_basis;
+ink_hrtime hrtime_offset;
+ink_hrtime hrtime_basis = init_hrtime_basis();
+
+ink_hrtime
+init_hrtime_basis()
+{
+  ink_hrtime t1, t2, b, now;
+  timespec ts;
+#ifdef USE_TIME_STAMP_COUNTER_HRTIME
+  init_hrtime_TCS();
+#endif
+  do {
+    t1 = ink_get_hrtime_internal();
+#if HAVE_CLOCK_GETTIME
+    ink_assert(!clock_gettime(CLOCK_REALTIME, &timespec_basis));
+#else
+    {
+      struct timeval tnow;
+      ink_assert(!gettimeofday(&tnow, NULL));
+      timespec_basis.tv_sec = tnow.tv_sec;
+      timespec_basis.tv_nsec = tnow.tv_usec * 1000;
+    }
+#endif
+    t2 = ink_get_hrtime_internal();
+    // accuracy must be at least 100 microseconds
+  } while (t2 - t1 > HRTIME_USECONDS(100));
+  b = (t2 + t1) / 2;
+  now = ink_hrtime_from_timespec(&timespec_basis);
+  ts = ink_hrtime_to_timespec(now);
+  ink_assert(ts.tv_sec == timespec_basis.tv_sec && ts.tv_nsec == timespec_basis.tv_nsec);
+  hrtime_offset = now - b;
+  hrtime_basis = b;
+  return b;
+}
+#endif
diff --git a/lib/ts/ink_hrtime.h b/lib/ts/ink_hrtime.h
new file mode 100644
index 00000000..bf7c9b7c
--- /dev/null
+++ b/lib/ts/ink_hrtime.h
@@ -0,0 +1,336 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+
+  ink_hrtime.h
+
+  This file contains code supporting the Inktomi high-resolution timer.
+**************************************************************************/
+
+#if !defined (_ink_hrtime_h_)
+#define _ink_hrtime_h_
+
+#include "ink_config.h"
+#include "ink_assert.h"
+#include "Compatability.h"
+
+int squid_timestamp_to_buf(char *buf, unsigned int buf_size, long timestamp_sec, long timestamp_usec);
+char *int64_to_str(char *buf, unsigned int buf_size, int64_t val, unsigned int *total_chars, unsigned int req_width=0, char pad_char='0');
+
+#ifdef NEED_HRTIME
+#include <time.h>
+#include <sys/time.h>
+#include <stdlib.h>
+typedef int64_t ink_hrtime;
+#else /* !defined (NEED_HRTIME) */
+#include <sys/time.h>
+typedef hrtime_t ink_hrtime;
+#endif
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Time Stamp Counter
+//
+//////////////////////////////////////////////////////////////////////////////
+#ifdef USE_TIME_STAMP_COUNTER_HRTIME
+extern ink_hrtime init_hrtime_TSC();
+extern uint32_t hrtime_freq;
+extern double hrtime_freq_float;
+static inline ink_hrtime
+hrtime_rdtsc()
+{
+  ink_hrtime rv;
+  asm volatile (".byte 0x0f, 0x31":"=A" (rv));
+  return (rv);
+}
+static inline uint64_t
+get_hrtime_rdtsc()
+{
+  // do it fixed point if you have better hardware support
+  return (uint64_t) (hrtime_freq_float * hrtime_rdtsc());
+}
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Factors to multiply units by to obtain coresponding ink_hrtime values.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#define HRTIME_FOREVER  (10*HRTIME_DECADE)
+#define HRTIME_DECADE   (10*HRTIME_YEAR)
+#define HRTIME_YEAR     (365*HRTIME_DAY+HRTIME_DAY/4)
+#define HRTIME_WEEK     (7*HRTIME_DAY)
+#define HRTIME_DAY      (24*HRTIME_HOUR)
+#define HRTIME_HOUR     (60*HRTIME_MINUTE)
+#define HRTIME_MINUTE   (60*HRTIME_SECOND)
+#define HRTIME_SECOND   (1000*HRTIME_MSECOND)
+#define HRTIME_MSECOND  (1000*HRTIME_USECOND)
+#define HRTIME_USECOND  (1000*HRTIME_NSECOND)
+#define HRTIME_NSECOND	(1LL)
+
+#define HRTIME_APPROX_SECONDS(_x) ((_x)>>30)    // off by 7.3%
+#define HRTIME_APPROX_FACTOR      (((float)(1<<30))/(((float)HRTIME_SECOND)))
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Map from units to ink_hrtime values
+//
+//////////////////////////////////////////////////////////////////////////////
+
+// simple macros
+
+#define HRTIME_YEARS(_x)    ((_x)*HRTIME_YEAR)
+#define HRTIME_WEEKS(_x)    ((_x)*HRTIME_WEEK)
+#define HRTIME_DAYS(_x)     ((_x)*HRTIME_DAY)
+#define HRTIME_HOURS(_x)    ((_x)*HRTIME_HOUR)
+#define HRTIME_MINUTES(_x)  ((_x)*HRTIME_MINUTE)
+#define HRTIME_SECONDS(_x)  ((_x)*HRTIME_SECOND)
+#define HRTIME_MSECONDS(_x) ((_x)*HRTIME_MSECOND)
+#define HRTIME_USECONDS(_x) ((_x)*HRTIME_USECOND)
+#define HRTIME_NSECONDS(_x) ((_x)*HRTIME_NSECOND)
+
+// gratuituous wrappers
+
+static inline ink_hrtime
+ink_hrtime_from_years(unsigned int years)
+{
+  return (HRTIME_YEARS(years));
+}
+static inline ink_hrtime
+ink_hrtime_from_weeks(unsigned int weeks)
+{
+  return (HRTIME_WEEKS(weeks));
+}
+static inline ink_hrtime
+ink_hrtime_from_days(unsigned int days)
+{
+  return (HRTIME_DAYS(days));
+}
+static inline ink_hrtime
+ink_hrtime_from_mins(unsigned int mins)
+{
+  return (HRTIME_MINUTES(mins));
+}
+static inline ink_hrtime
+ink_hrtime_from_sec(unsigned int sec)
+{
+  return (HRTIME_SECONDS(sec));
+}
+static inline ink_hrtime
+ink_hrtime_from_msec(unsigned int msec)
+{
+  return (HRTIME_MSECONDS(msec));
+}
+static inline ink_hrtime
+ink_hrtime_from_usec(unsigned int usec)
+{
+  return (HRTIME_USECONDS(usec));
+}
+static inline ink_hrtime
+ink_hrtime_from_nsec(unsigned int nsec)
+{
+  return (HRTIME_NSECONDS(nsec));
+}
+
+static inline ink_hrtime
+ink_hrtime_from_timespec(const struct timespec * ts)
+{
+  return ink_hrtime_from_sec(ts->tv_sec) + ink_hrtime_from_nsec(ts->tv_nsec);
+}
+
+static inline ink_hrtime
+ink_hrtime_from_timeval(const struct timeval * tv)
+{
+  return ink_hrtime_from_sec(tv->tv_sec) + ink_hrtime_from_usec(tv->tv_usec);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Map from ink_hrtime values to other units
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static inline ink_hrtime
+ink_hrtime_to_years(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_YEAR));
+}
+static inline ink_hrtime
+ink_hrtime_to_weeks(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_WEEK));
+}
+static inline ink_hrtime
+ink_hrtime_to_days(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_DAY));
+}
+static inline ink_hrtime
+ink_hrtime_to_mins(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_MINUTE));
+}
+static inline ink_hrtime
+ink_hrtime_to_sec(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_SECOND));
+}
+static inline ink_hrtime
+ink_hrtime_to_msec(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_MSECOND));
+}
+static inline ink_hrtime
+ink_hrtime_to_usec(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_USECOND));
+}
+static inline ink_hrtime
+ink_hrtime_to_nsec(ink_hrtime t)
+{
+  return ((ink_hrtime) (t / HRTIME_NSECOND));
+}
+
+static inline struct timespec
+ink_hrtime_to_timespec(ink_hrtime t)
+{
+  struct timespec ts;
+
+  ts.tv_sec = ink_hrtime_to_sec(t);
+  ts.tv_nsec = t % HRTIME_SECOND;
+  return (ts);
+}
+
+static inline struct timeval
+ink_hrtime_to_timeval(ink_hrtime t)
+{
+  int64_t usecs;
+  struct timeval tv;
+
+  usecs = ink_hrtime_to_usec(t);
+  tv.tv_sec = usecs / 1000000;
+  tv.tv_usec = usecs % 1000000;
+  return (tv);
+}
+
+static inline int
+ink_hrtime_to_timeval2(ink_hrtime t, struct timeval *tv)
+{
+  int64_t usecs = ink_hrtime_to_usec(t);
+  tv->tv_sec = usecs / 1000000;
+  tv->tv_usec = usecs % 1000000;
+  return 0;
+}
+
+
+/*
+   using Jan 1 1970 as the base year, instead of Jan 1 1601,
+   which translates to (365 + 0.25)369*24*60*60 seconds   */
+#define NT_TIMEBASE_DIFFERENCE_100NSECS 116444736000000000i64
+
+
+static inline ink_hrtime
+ink_get_hrtime_internal()
+{
+#if defined (NEED_HRTIME)
+#if defined (USE_TIME_STAMP_COUNTER_HRTIME)
+  return get_hrtime_rdtsc();
+#elif defined(freebsd)
+  timespec ts;
+  clock_gettime(CLOCK_REALTIME, &ts);
+  return ink_hrtime_from_timespec(&ts);
+#else
+  timeval tv;
+  gettimeofday(&tv, NULL);
+  return ink_hrtime_from_timeval(&tv);
+#endif
+#else /* !defined (NEED_HRTIME) */
+  return gethrtime();
+#endif
+}
+
+static inline ink_hrtime
+ink_get_based_hrtime_internal()
+{
+#if defined(USE_TIME_STAMP_COUNTER_HRTIME)
+  return hrtime_offset + ink_get_hrtime_internal();
+#elif !HAVE_CLOCK_GETTIME
+  timeval tv;
+  gettimeofday(&tv, NULL);
+  return ink_hrtime_from_timeval(&tv);
+#else
+  timespec ts;
+  clock_gettime(CLOCK_REALTIME, &ts);
+  return ink_hrtime_from_timespec(&ts);
+#endif
+}
+
+
+
+static inline struct timeval
+ink_gettimeofday()
+{
+  return ink_hrtime_to_timeval(ink_get_based_hrtime_internal());
+}
+
+static inline int
+ink_gethrtimeofday(struct timeval *tp, void *)
+{
+  return ink_hrtime_to_timeval2(ink_get_based_hrtime_internal(), tp);
+}
+
+static inline int
+ink_time()
+{
+  return (int) ink_hrtime_to_sec(ink_get_based_hrtime_internal());
+}
+
+static inline int
+ink_hrtime_diff_msec(ink_hrtime t1, ink_hrtime t2)
+{
+  return (int) ink_hrtime_to_msec(t1 - t2);
+}
+
+static inline ink_hrtime
+ink_hrtime_diff(ink_hrtime t1, ink_hrtime t2)
+{
+  return (t1 - t2);
+}
+
+static inline ink_hrtime
+ink_hrtime_add(ink_hrtime t1, ink_hrtime t2)
+{
+  return (t1 + t2);
+}
+
+static inline void
+ink_hrtime_sleep(ink_hrtime delay)
+{
+  struct timespec ts = ink_hrtime_to_timespec(delay);
+  nanosleep(&ts, NULL);
+}
+
+#endif /* _ink_hrtime_h_ */
diff --git a/lib/ts/ink_inet.cc b/lib/ts/ink_inet.cc
new file mode 100644
index 00000000..3221ab21
--- /dev/null
+++ b/lib/ts/ink_inet.cc
@@ -0,0 +1,533 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "ts/TestBox.h"
+
+#if defined(darwin)
+extern "C"
+{
+  struct hostent *gethostbyname_r(const char *name, struct hostent *result, char *buffer, int buflen, int *h_errnop);
+  struct hostent *gethostbyaddr_r(const char *name, size_t size, int type,
+                                  struct hostent *result, char *buffer, int buflen, int *h_errnop);
+}
+#endif
+
+IpAddr const IpAddr::INVALID;
+
+struct hostent *
+ink_gethostbyname_r(char *hostname, ink_gethostbyname_r_data * data)
+{
+#ifdef RENTRENT_GETHOSTBYNAME
+  struct hostent *r = gethostbyname(hostname);
+  if (r)
+    data->ent = *r;
+  data->herrno = errno;
+
+#else //RENTRENT_GETHOSTBYNAME
+#if GETHOSTBYNAME_R_GLIBC2
+
+  struct hostent *addrp = NULL;
+  int res = gethostbyname_r(hostname, &data->ent, data->buf,
+                            INK_GETHOSTBYNAME_R_DATA_SIZE, &addrp,
+                            &data->herrno);
+  struct hostent *r = NULL;
+  if (!res && addrp)
+    r = addrp;
+
+#else
+  struct hostent *r = gethostbyname_r(hostname, &data->ent, data->buf,
+                                      INK_GETHOSTBYNAME_R_DATA_SIZE,
+                                      &data->herrno);
+#endif
+#endif
+  return r;
+}
+
+struct hostent *
+ink_gethostbyaddr_r(char *ip, int len, int type, ink_gethostbyaddr_r_data * data)
+{
+#if GETHOSTBYNAME_R_GLIBC2
+  struct hostent *r = NULL;
+  struct hostent *addrp = NULL;
+  int res = gethostbyaddr_r((char *) ip, len, type, &data->ent, data->buf,
+                            INK_GETHOSTBYNAME_R_DATA_SIZE, &addrp,
+                            &data->herrno);
+  if (!res && addrp)
+    r = addrp;
+#else
+#ifdef RENTRENT_GETHOSTBYADDR
+  struct hostent *r = gethostbyaddr((const void *) ip, len, type);
+
+#else
+  struct hostent *r = gethostbyaddr_r((char *) ip, len, type, &data->ent,
+                                      data->buf,
+                                      INK_GETHOSTBYNAME_R_DATA_SIZE,
+                                      &data->herrno);
+#endif
+#endif //LINUX
+  return r;
+}
+
+uint32_t
+ink_inet_addr(const char *s)
+{
+  uint32_t u[4];
+  uint8_t *pc = (uint8_t *) s;
+  int n = 0;
+  uint32_t base = 10;
+
+  while (n < 4) {
+
+    u[n] = 0;
+    base = 10;
+
+    // handle hex, octal
+
+    if (*pc == '0') {
+      if (*++pc == 'x' || *pc == 'X')
+        base = 16, pc++;
+      else
+        base = 8;
+    }
+    // handle hex, octal, decimal
+
+    while (*pc) {
+      if (ParseRules::is_digit(*pc)) {
+        u[n] = u[n] * base + (*pc++ - '0');
+        continue;
+      }
+      if (base == 16 && ParseRules::is_hex(*pc)) {
+        u[n] = u[n] * 16 + ParseRules::ink_tolower(*pc++) - 'a' + 10;
+        continue;
+      }
+      break;
+    }
+
+    n++;
+    if (*pc == '.')
+      pc++;
+    else
+      break;
+  }
+
+  if (*pc && !ParseRules::is_wslfcr(*pc))
+    return htonl((uint32_t) - 1);
+
+  switch (n) {
+  case 1:
+    return htonl(u[0]);
+  case 2:
+    if (u[0] > 0xff || u[1] > 0xffffff)
+      return htonl((uint32_t) - 1);
+    return htonl((u[0] << 24) | u[1]);
+  case 3:
+    if (u[0] > 0xff || u[1] > 0xff || u[2] > 0xffff)
+      return htonl((uint32_t) - 1);
+    return htonl((u[0] << 24) | (u[1] << 16) | u[2]);
+  case 4:
+    if (u[0] > 0xff || u[1] > 0xff || u[2] > 0xff || u[3] > 0xff)
+      return htonl((uint32_t) - 1);
+    return htonl((u[0] << 24) | (u[1] << 16) | (u[2] << 8) | u[3]);
+  }
+  return htonl((uint32_t) - 1);
+}
+
+const char *ats_ip_ntop(const struct sockaddr *addr, char *dst, size_t size)
+{
+  char const* zret = 0;
+
+  switch (addr->sa_family) {
+  case AF_INET:
+    zret = inet_ntop(AF_INET, &ats_ip4_addr_cast(addr), dst, size);
+    break;
+  case AF_INET6:
+    zret = inet_ntop(AF_INET6, &ats_ip6_addr_cast(addr), dst, size);
+    break;
+  default:
+    zret = dst;
+    snprintf(dst, size, "*Not IP address [%u]*", addr->sa_family);
+    break;
+  }
+  return zret;
+}
+
+char const*
+ats_ip_family_name(int family) {
+  return AF_INET == family ? "IPv4"
+    : AF_INET6 == family ? "IPv6"
+    : "Unspec"
+    ;
+}
+
+char const* ats_ip_nptop(
+  sockaddr const* addr,
+  char* dst, size_t size
+) {
+  char buff[INET6_ADDRSTRLEN];
+  snprintf(dst, size, "%s:%u",
+    ats_ip_ntop(addr, buff, sizeof(buff)),
+    ats_ip_port_host_order(addr)
+  );
+  return dst;
+}
+
+int
+ats_ip_parse(ts::ConstBuffer src, ts::ConstBuffer* addr, ts::ConstBuffer* port) {
+  // In case the incoming arguments are null.
+  ts::ConstBuffer localAddr, localPort;
+  if (!addr) addr = &localAddr;
+  if (!port) port = &localPort;
+  addr->reset();
+  port->reset();
+
+  // Let's see if we can find out what's in the address string.
+  if (src) {
+    while (src && isspace(*src)) ++src;
+    // Check for brackets.
+    if ('[' == *src) {
+      /* Ugly. In a number of places we must use bracket notation
+         to support port numbers. Rather than mucking with that
+         everywhere, we'll tweak it here. Experimentally we can't
+         depend on getaddrinfo to handle it. Note that the text
+         buffer size includes space for the nul, so a bracketed
+         address is at most that size - 1 + 2 -> size+1.
+
+         It just gets better. In order to bind link local addresses
+         the scope_id must be set to the interface index. That's
+         most easily done by appending a %intf (where "intf" is the
+         name of the interface) to the address. Which makes
+         the address potentially larger than the standard maximum.
+         So we can't depend on that sizing.
+      */
+      ++src; // skip bracket.
+      *addr = src.splitOn(']');
+      if (*addr && ':' == *src) { // found the closing bracket and port colon
+        ++src; // skip colon.
+        *port = src;
+      } // else it's a fail for unclosed brackets.
+    } else {
+      // See if there's exactly 1 colon
+      ts::ConstBuffer tmp = src.after(':');
+      if (tmp && ! tmp.find(':')) { // 1 colon and no others
+        src.clip(tmp.data() - 1); // drop port from address.
+        *port = tmp;
+      } // else 0 or > 1 colon and no brackets means no port.
+      *addr = src;
+    }
+    // clip port down to digits.
+    if (*port) {
+      char const* spot = port->data();
+      while (isdigit(*spot)) ++spot;
+      port->clip(spot);
+    }
+  }
+  return *addr ? 0 : -1; // true if we found an address.
+}
+
+int
+ats_ip_pton(char const* text, sockaddr* ip) {
+  int zret = -1;
+  ts::ConstBuffer addr, port;
+  ts::ConstBuffer src(text, strlen(text)+1);
+
+  ats_ip_invalidate(ip);
+  if (0 == ats_ip_parse(src, &addr, &port)) {
+    // Copy if not terminated.
+    if (0 != addr[addr.size()-1]) {
+      char* tmp = static_cast<char*>(alloca(addr.size()+1));
+      memcpy(tmp, addr.data(), addr.size());
+      tmp[addr.size()] = 0;
+      addr.set(tmp, addr.size());
+    }
+    if (addr.find(':')) { // colon -> IPv6
+      in6_addr addr6;
+      if (inet_pton(AF_INET6, addr.data(), &addr6)) {
+        zret = 0;
+        ats_ip6_set(ip, addr6);
+      }
+    } else { // no colon -> must be IPv4
+      in_addr addr4;
+      if (inet_aton(addr.data(), &addr4)) {
+        zret = 0;
+        ats_ip4_set(ip, addr4.s_addr);
+      }
+    }
+    // If we had a successful conversion, set the port.
+    if (ats_is_ip(ip))
+      ats_ip_port_cast(ip) = port ? htons(atoi(port.data())) : 0;
+  }
+
+  return zret;
+}
+
+uint32_t
+ats_ip_hash(sockaddr const* addr) {
+  union md5sum {
+    unsigned char c[16];
+    uint32_t i;
+  } zret;
+  zret.i = 0;
+
+  if (ats_is_ip4(addr)) {
+    zret.i = ats_ip4_addr_cast(addr);
+  } else if (ats_is_ip6(addr)) {
+    ink_code_md5(const_cast<uint8_t*>(ats_ip_addr8_cast(addr)), TS_IP6_SIZE, zret.c);
+  }
+  return zret.i;
+}
+
+int
+ats_ip_to_hex(sockaddr const* src, char* dst, size_t len) {
+  int zret = 0;
+  ink_assert(len);
+  char const* dst_limit = dst + len - 1; // reserve null space.
+  if (ats_is_ip(src)) {
+    uint8_t const* data = ats_ip_addr8_cast(src);
+    for ( uint8_t const* src_limit = data + ats_ip_addr_size(src)
+        ; data < src_limit && dst+1 < dst_limit
+        ; ++data, zret += 2
+    ) {
+    uint8_t n1 = (*data >> 4) & 0xF; // high nybble.
+    uint8_t n0 = *data & 0xF; // low nybble.
+
+    *dst++ = n1 > 9 ? n1 + 'A' - 10 : n1 + '0';
+    *dst++ = n0 > 9 ? n0 + 'A' - 10 : n0 + '0';
+    }
+  }
+  *dst = 0; // terminate but don't include that in the length.
+  return zret;
+}
+
+sockaddr* ats_ip_set(
+  sockaddr* dst,
+  IpAddr const& addr,
+  uint16_t port
+) {
+  if (AF_INET == addr._family) ats_ip4_set(dst, addr._addr._ip4, port);
+  else if (AF_INET6 == addr._family) ats_ip6_set(dst, addr._addr._ip6, port);
+  else ats_ip_invalidate(dst);
+  return dst;
+}
+
+int
+IpAddr::load(char const* text) {
+  IpEndpoint ip;
+  int zret = ats_ip_pton(text, &ip);
+  *this = ip;
+  return zret;
+}
+
+char*
+IpAddr::toString(char* dest, size_t len) const {
+  IpEndpoint ip;
+  ip.assign(*this);
+  ats_ip_ntop(&ip, dest, len);
+  return dest;
+}
+
+bool
+IpAddr::isMulticast() const {
+  return (AF_INET == _family && 0xe == (_addr._byte[0] >> 4)) ||
+    (AF_INET6 == _family && IN6_IS_ADDR_MULTICAST(&_addr._ip6))
+    ;
+}
+
+bool
+operator == (IpAddr const& lhs, sockaddr const* rhs) {
+  bool zret = false;
+  if (lhs._family == rhs->sa_family) {
+    if (AF_INET == lhs._family) {
+      zret = lhs._addr._ip4 == ats_ip4_addr_cast(rhs);
+    } else if (AF_INET6 == lhs._family) {
+      zret = 0 == memcmp(&lhs._addr._ip6, &ats_ip6_addr_cast(rhs), sizeof(in6_addr));
+    } else { // map all non-IP to the same thing.
+      zret = true;
+    }
+  } // else different families, not equal.
+  return zret;
+}
+
+int
+ats_ip_getbestaddrinfo(char const* host,
+  IpEndpoint* ip4,
+  IpEndpoint* ip6
+) {
+  int zret = -1;
+  int port = 0; // port value to assign if we find an address.
+  addrinfo ai_hints;
+  addrinfo* ai_result;
+  ts::ConstBuffer addr_text, port_text;
+  ts::ConstBuffer src(host, strlen(host)+1);
+
+  if (ip4) ats_ip_invalidate(ip4);
+  if (ip6) ats_ip_invalidate(ip6);
+
+  if (0 == ats_ip_parse(src, &addr_text, &port_text)) {
+    // Copy if not terminated.
+    if (0 != addr_text[addr_text.size()-1]) {
+      char* tmp = static_cast<char*>(alloca(addr_text.size()+1));
+      memcpy(tmp, addr_text.data(), addr_text.size());
+      tmp[addr_text.size()] = 0;
+      addr_text.set(tmp, addr_text.size());
+    }
+    ink_zero(ai_hints);
+    ai_hints.ai_family = AF_UNSPEC;
+    ai_hints.ai_flags = AI_ADDRCONFIG;
+    zret = getaddrinfo(addr_text.data(), 0, &ai_hints, &ai_result);
+  
+    if (0 == zret) {
+      // Walk the returned addresses and pick the "best".
+      enum {
+        NA, // Not an (IP) Address.
+        LO, // Loopback.
+        LL, // Link Local.
+        PR, // Private.
+        MC, // Multicast.
+        GL  // Global.
+      } spot_type = NA, ip4_type = NA, ip6_type = NA;
+      sockaddr const* ip4_src = 0;
+      sockaddr const* ip6_src = 0;
+
+      for ( addrinfo* ai_spot = ai_result
+          ; ai_spot
+          ; ai_spot = ai_spot->ai_next
+      ) {
+        sockaddr const* ai_ip = ai_spot->ai_addr;
+        if (!ats_is_ip(ai_ip)) spot_type = NA;
+        else if (ats_is_ip_loopback(ai_ip)) spot_type = LO;
+        else if (ats_is_ip_linklocal(ai_ip)) spot_type = LL;
+        else if (ats_is_ip_private(ai_ip)) spot_type = PR;
+        else if (ats_is_ip_multicast(ai_ip)) spot_type = MC;
+        else spot_type = GL;
+        
+        if (spot_type == NA) continue; // Next!
+
+        if (ats_is_ip4(ai_ip)) {
+          if (spot_type > ip4_type) {
+            ip4_src = ai_ip;
+            ip4_type = spot_type;
+          }
+        } else if (ats_is_ip6(ai_ip)) {
+          if (spot_type > ip6_type) {
+            ip6_src = ai_ip;
+            ip6_type = spot_type;
+          }
+        }
+      }
+      if (ip4_type > NA) ats_ip_copy(ip4, ip4_src);
+      if (ip6_type > NA) ats_ip_copy(ip6, ip6_src);
+      freeaddrinfo(ai_result); // free *after* the copy.
+
+    }
+  }
+
+  // We don't really care if the port is null terminated - the parser
+  // would get all the digits so the next character is a non-digit (null or
+  // not) and atoi will do the right thing in either case.
+  if (port_text.size()) port = htons(atoi(port_text.data()));
+  if (ats_is_ip(ip4)) ats_ip_port_cast(ip4) = port;
+  if (ats_is_ip(ip6)) ats_ip_port_cast(ip6) = port;
+
+  if (!ats_is_ip(ip4) && !ats_is_ip(ip6)) zret = -1;
+
+  return zret;
+}
+
+int
+ats_ip_check_characters(ts::ConstBuffer text) {
+  bool found_colon = false;
+  bool found_hex = false;
+  for ( char const *p = text.data(), *limit = p + text.size()
+      ; p < limit
+      ; ++p
+  )
+    if (':' == *p) found_colon = true;
+    else if ('.' == *p || isdigit(*p)) /* empty */;
+    else if (isxdigit(*p)) found_hex = true;
+    else return AF_UNSPEC;
+
+  return found_hex && !found_colon ? AF_UNSPEC
+    : found_colon ? AF_INET6
+    : AF_INET
+    ;
+}
+
+// Need to declare this type globally so gcc 4.4 can use it in the countof() template ...
+struct ip_parse_spec { const char * hostspec; const char * host; const char * port; };
+
+REGRESSION_TEST(Ink_Inet) (RegressionTest * t, int /* atype */, int * pstatus) {
+  TestBox box(t, pstatus);
+  IpEndpoint  ep;
+  IpAddr      addr;
+
+  box = REGRESSION_TEST_PASSED;
+
+  // Test ats_ip_parse() ...
+  {
+    struct ip_parse_spec names[] = {
+      { "::", "::", NULL },
+      { "[::1]:99", "::1", "99" },
+      { "127.0.0.1:8080", "127.0.0.1", "8080" },
+      { "foo.example.com", "foo.example.com", NULL },
+      { "foo.example.com:99", "foo.example.com", "99" },
+    };
+
+    for (unsigned i = 0; i < countof(names); ++i) {
+      ts::ConstBuffer addr, port;
+
+      box.check(ats_ip_parse(ts::ConstBuffer(names[i].hostspec, strlen(names[i].hostspec)), &addr, &port) == 0,
+          "ats_ip_parse(%s)", names[i].hostspec);
+      box.check(strncmp(addr.data(), names[i].host, addr.size()) ==  0,
+          "ats_ip_parse(%s) gave addr '%.*s'", names[i].hostspec, addr.size(), addr.data());
+      if (names[i].port) {
+        box.check(strncmp(port.data(), names[i].port, port.size()) ==  0,
+          "ats_ip_parse(%s) gave port '%.*s'", names[i].hostspec, port.size(), port.data());
+      } else {
+        box.check(port.size() == 0,
+          "ats_ip_parse(%s) gave port '%.*s'", names[i].hostspec, port.size(), port.data());
+      }
+
+    }
+  }
+
+  // Test ats_ip_pton() ...
+  {
+    box.check(ats_ip_pton("76.14.64.156", &ep.sa) == 0, "ats_ip_pton()");
+    box.check(addr.load("76.14.64.156") == 0, "IpAddr::load()");
+    box.check(addr.family() == ep.family(), "mismatched address family");
+
+    switch (addr.family()) {
+    case AF_INET:
+      box.check(ep.sin.sin_addr.s_addr == addr._addr._ip4, "IPv4 address mismatch");
+      break;
+    case AF_INET6:
+      box.check(memcmp(&ep.sin6.sin6_addr, &addr._addr._ip6, sizeof(in6_addr)) == 0, "IPv6 address mismatch");
+      break;
+    default:
+      ;
+    }
+  }
+
+
+}
diff --git a/lib/ts/ink_inet.h b/lib/ts/ink_inet.h
new file mode 100644
index 00000000..30fc0362
--- /dev/null
+++ b/lib/ts/ink_inet.h
@@ -0,0 +1,1284 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#if !defined (_ink_inet_h_)
+#define _ink_inet_h_
+
+#include <netinet/in.h>
+#include <netdb.h>
+#include <ink_memory.h>
+#include <sys/socket.h>
+#include <ts/ink_apidefs.h>
+#include <ts/TsBuffer.h>
+
+#define INK_GETHOSTBYNAME_R_DATA_SIZE 1024
+#define INK_GETHOSTBYADDR_R_DATA_SIZE 1024
+
+#if ! TS_HAS_IN6_IS_ADDR_UNSPECIFIED
+#if defined(IN6_IS_ADDR_UNSPECIFIED)
+#undef IN6_IS_ADDR_UNSPECIFIED
+#endif
+static inline bool IN6_IS_ADDR_UNSPECIFIED(in6_addr const* addr) {
+  uint64_t const* w = reinterpret_cast<uint64_t const*>(addr);
+  return 0 == w[0] && 0 == w[1];
+}
+#endif
+
+struct IpAddr; // forward declare.
+
+/** A union to hold the standard IP address structures.
+    By standard we mean @c sockaddr compliant.
+
+    We use the term "endpoint" because these contain more than just the
+    raw address, all of the data for an IP endpoint is present.
+
+    @internal This might be useful to promote to avoid strict aliasing
+    problems.  Experiment with it here to see how it works in the
+    field.
+
+    @internal @c sockaddr_storage is not present because it is so
+    large and the benefits of including it are small. Use of this
+    structure will make it easy to add if that becomes necessary.
+
+ */
+union IpEndpoint {
+  typedef IpEndpoint self; ///< Self reference type.
+
+  struct sockaddr         sa; ///< Generic address.
+  struct sockaddr_in      sin; ///< IPv4
+  struct sockaddr_in6     sin6; ///< IPv6
+
+  self& assign(
+    sockaddr const* ip ///< Source address, family, port.
+  );
+  /// Construct from an @a addr and @a port.
+  self& assign(
+    IpAddr const& addr, ///< Address and address family.
+    in_port_t port = 0 ///< Port (network order).
+  );
+
+  /// Test for valid IP address.
+  bool isValid() const;
+  /// Test for IPv4.
+  bool isIp4() const;
+  /// Test for IPv6.
+  bool isIp6() const;
+
+  uint16_t family() const;
+
+  /// Set to be any address for family @a family.
+  /// @a family must be @c AF_INET or @c AF_INET6.
+  /// @return This object.
+  self& setToAnyAddr(
+    int family ///< Address family.
+  );
+  /// Set to be loopback for family @a family.
+  /// @a family must be @c AF_INET or @c AF_INET6.
+  /// @return This object.
+  self& setToLoopback(
+    int family ///< Address family.
+  );
+
+
+  /// Port in network order.
+  in_port_t& port();
+  /// Port in network order.
+  in_port_t port() const;
+};
+
+struct ink_gethostbyname_r_data
+{
+  int herrno;
+  struct hostent ent;
+  char buf[INK_GETHOSTBYNAME_R_DATA_SIZE];
+};
+
+struct ink_gethostbyaddr_r_data
+{
+  int herrno;
+  struct hostent ent;
+  char buf[INK_GETHOSTBYADDR_R_DATA_SIZE];
+};
+
+/**
+  Wrapper for gethostbyname_r(). If successful, returns a pointer
+  to the hostent structure. Returns NULL and sets data->herrno to
+  the appropriate error code on failure.
+
+  @param hostname null-terminated host name string
+  @param data pointer to ink_gethostbyname_r_data allocated by the caller
+
+*/
+struct hostent *ink_gethostbyname_r(char *hostname, ink_gethostbyname_r_data * data);
+
+/**
+  Wrapper for gethostbyaddr_r(). If successful, returns a pointer
+  to the hostent structure. Returns NULL and sets data->herrno to
+  the appropriate error code on failure.
+
+  @param ip IP address of the host
+  @param len length of the buffer indicated by ip
+  @param type family of the address
+  @param data pointer to ink_gethostbyname_r_data allocated by the caller
+
+*/
+struct hostent *ink_gethostbyaddr_r(char *ip, int len, int type, ink_gethostbyaddr_r_data * data);
+
+/** Parse a string for pieces of an IP address.
+
+    This doesn't parse the actual IP address, but picks it out from @a
+    src. It is intended to deal with the brackets that can optionally
+    surround an IP address (usually IPv6) which in turn are used to
+    differentiate between an address and an attached port. E.g.
+    @code
+      [FE80:9312::192:168:1:1]:80
+    @endcode
+    @a addr or @a port can be @c NULL in which case that value isn't returned.
+
+    @return 0 if an address was found, non-zero otherwise.
+*/
+int
+ats_ip_parse(
+             ts::ConstBuffer src, ///< [in] String to search.
+             ts::ConstBuffer* addr, ///< [out] Range containing IP address.
+             ts::ConstBuffer* port ///< [out] Range containing port.
+);
+
+/**  Check to see if a buffer contains only IP address characters.
+     @return
+    - AF_UNSPEC - not a numeric address.
+    - AF_INET - only digits and dots.
+    - AF_INET6 - colons found.
+*/
+int
+ats_ip_check_characters(ts::ConstBuffer text);
+
+/**
+  Wrapper for inet_addr().
+
+  @param s IP address in the Internet standard dot notation.
+
+*/
+inkcoreapi uint32_t ats_inet_addr(const char *s);
+
+const char *ats_ip_ntop(const struct sockaddr *addr, char *dst, size_t size);
+
+// --
+/// Size in bytes of an IPv6 address.
+static size_t const TS_IP6_SIZE = sizeof(in6_addr);
+
+/// Reset an address to invalid.
+/// @note Useful for marking a member as not yet set.
+inline void ats_ip_invalidate(sockaddr* addr) {
+  addr->sa_family = AF_UNSPEC;
+}
+inline void ats_ip_invalidate(sockaddr_in6* addr) {
+  addr->sin6_family = AF_UNSPEC;
+}
+inline void ats_ip_invalidate(IpEndpoint* ip) {
+  ip->sa.sa_family = AF_UNSPEC;
+}
+
+/** Get a string name for an IP address family.
+    @return The string name (never @c NULL).
+*/
+char const*
+ats_ip_family_name(int family);
+
+/// Test for IP protocol.
+/// @return @c true if the address is IP, @c false otherwise.
+inline bool ats_is_ip(sockaddr const* addr) {
+  return addr
+    && (AF_INET == addr->sa_family || AF_INET6 == addr->sa_family);
+}
+/// @return @c true if the address is IP, @c false otherwise.
+inline bool ats_is_ip(IpEndpoint const* addr) {
+  return addr
+    && (AF_INET == addr->sa.sa_family || AF_INET6 == addr->sa.sa_family);
+}
+/// Test for IP protocol.
+/// @return @c true if the value is an IP address family, @c false otherwise.
+inline bool ats_is_ip(int family) {
+  return AF_INET == family || AF_INET6 == family;
+}
+/// Test for IPv4 protocol.
+/// @return @c true if the address is IPv4, @c false otherwise.
+inline bool ats_is_ip4(sockaddr const* addr) {
+  return addr && AF_INET == addr->sa_family;
+}
+/// Test for IPv4 protocol.
+/// @note Convenience overload.
+/// @return @c true if the address is IPv4, @c false otherwise.
+inline bool ats_is_ip4(IpEndpoint const* addr) {
+  return addr && AF_INET == addr->sa.sa_family;
+}
+/// Test for IPv6 protocol.
+/// @return @c true if the address is IPv6, @c false otherwise.
+inline bool ats_is_ip6(sockaddr const* addr) {
+  return addr && AF_INET6 == addr->sa_family;
+}
+/// Test for IPv6 protocol.
+/// @note Convenience overload.
+/// @return @c true if the address is IPv6, @c false otherwise.
+inline bool ats_is_ip6(IpEndpoint const* addr) {
+  return addr && AF_INET6 == addr->sa.sa_family;
+}
+
+/// @return @c true if the address families are compatible.
+inline bool ats_ip_are_compatible(
+  sockaddr const* lhs, ///< Address to test.
+  sockaddr const* rhs  ///< Address to test.
+) {
+  return lhs->sa_family == rhs->sa_family;
+}
+/// @return @c true if the address families are compatible.
+inline bool ats_ip_are_compatible(
+  IpEndpoint const* lhs, ///< Address to test.
+  IpEndpoint const* rhs  ///< Address to test.
+) {
+  return ats_ip_are_compatible(&lhs->sa, &rhs->sa);
+}
+/// @return @c true if the address families are compatible.
+inline bool ats_ip_are_compatible(
+  int lhs, ///< Address family to test.
+  sockaddr const* rhs  ///< Address to test.
+) {
+  return lhs == rhs->sa_family;
+}
+/// @return @c true if the address families are compatible.
+inline bool ats_ip_are_compatible(
+  sockaddr const* lhs, ///< Address to test.
+  int rhs  ///< Family to test.
+) {
+  return lhs->sa_family == rhs;
+}
+
+// IP address casting.
+// sa_cast to cast to sockaddr*.
+// ss_cast to cast to sockaddr_storage*.
+// ip4_cast converts to sockaddr_in (because that's effectively an IPv4 addr).
+// ip6_cast converts to sockaddr_in6
+
+inline sockaddr* ats_ip_sa_cast(sockaddr_storage* a) {
+  return static_cast<sockaddr*>(static_cast<void*>(a));
+}
+inline sockaddr const* ats_ip_sa_cast(sockaddr_storage const* a) {
+  return static_cast<sockaddr const*>(static_cast<void const*>(a));
+}
+
+inline sockaddr* ats_ip_sa_cast(sockaddr_in* a) {
+  return static_cast<sockaddr*>(static_cast<void*>(a));
+}
+inline sockaddr const* ats_ip_sa_cast(sockaddr_in const* a) {
+  return static_cast<sockaddr const*>(static_cast<void const*>(a));
+}
+
+inline sockaddr* ats_ip_sa_cast(sockaddr_in6* a) {
+  return static_cast<sockaddr*>(static_cast<void*>(a));
+}
+inline sockaddr const* ats_ip_sa_cast(sockaddr_in6 const* a) {
+  return static_cast<sockaddr const*>(static_cast<void const*>(a));
+}
+
+inline sockaddr_storage* ats_ip_ss_cast(sockaddr* a) {
+  return static_cast<sockaddr_storage*>(static_cast<void*>(a));
+}
+inline sockaddr_storage const* ats_ip_ss_cast(sockaddr const* a) {
+  return static_cast<sockaddr_storage const*>(static_cast<void const*>(a));
+}
+
+inline sockaddr_in* ats_ip4_cast(sockaddr* a) {
+  return static_cast<sockaddr_in*>(static_cast<void*>(a));
+}
+inline sockaddr_in const* ats_ip4_cast(sockaddr const* a) {
+  return static_cast<sockaddr_in const*>(static_cast<void const*>(a));
+}
+
+inline sockaddr_in& ats_ip4_cast(sockaddr& a) {
+  return *static_cast<sockaddr_in*>(static_cast<void*>(&a));
+}
+inline sockaddr_in const& ats_ip4_cast(sockaddr const& a) {
+  return *static_cast<sockaddr_in const*>(static_cast<void const*>(&a));
+}
+
+inline sockaddr_in* ats_ip4_cast(sockaddr_in6* a) {
+  return static_cast<sockaddr_in*>(static_cast<void*>(a));
+}
+inline sockaddr_in const* ats_ip4_cast(sockaddr_in6 const* a) {
+  return static_cast<sockaddr_in const*>(static_cast<void const*>(a));
+}
+
+inline sockaddr_in& ats_ip4_cast(sockaddr_in6& a) {
+  return *static_cast<sockaddr_in*>(static_cast<void*>(&a));
+}
+inline sockaddr_in const& ats_ip4_cast(sockaddr_in6 const& a) {
+  return *static_cast<sockaddr_in const*>(static_cast<void const*>(&a));
+}
+
+inline sockaddr_in6* ats_ip6_cast(sockaddr* a) {
+  return static_cast<sockaddr_in6*>(static_cast<void*>(a));
+}
+inline sockaddr_in6 const* ats_ip6_cast(sockaddr const* a) {
+  return static_cast<sockaddr_in6 const*>(static_cast<void const*>(a));
+}
+inline sockaddr_in6& ats_ip6_cast(sockaddr& a) {
+  return *static_cast<sockaddr_in6*>(static_cast<void*>(&a));
+}
+inline sockaddr_in6 const& ats_ip6_cast(sockaddr const& a) {
+  return *static_cast<sockaddr_in6 const*>(static_cast<void const*>(&a));
+}
+
+/// @return The @c sockaddr size for the family of @a addr.
+inline size_t ats_ip_size(
+  sockaddr const* addr ///< Address object.
+) {
+  return AF_INET == addr->sa_family ? sizeof(sockaddr_in)
+    : AF_INET6 == addr->sa_family ? sizeof(sockaddr_in6)
+    : 0
+    ;
+}
+inline size_t ats_ip_size(
+  IpEndpoint const* addr ///< Address object.
+) {
+  return AF_INET == addr->sa.sa_family ? sizeof(sockaddr_in)
+    : AF_INET6 == addr->sa.sa_family ? sizeof(sockaddr_in6)
+    : 0
+    ;
+}
+/// @return The size of the IP address only.
+inline size_t ats_ip_addr_size(
+  sockaddr const* addr ///< Address object.
+) {
+  return AF_INET == addr->sa_family ? sizeof(in_addr_t)
+    : AF_INET6 == addr->sa_family ? sizeof(in6_addr)
+    : 0
+    ;
+}
+inline size_t ats_ip_addr_size(
+  IpEndpoint const* addr ///< Address object.
+) {
+  return AF_INET == addr->sa.sa_family ? sizeof(in_addr_t)
+    : AF_INET6 == addr->sa.sa_family ? sizeof(in6_addr)
+    : 0
+    ;
+}
+
+/** Get a reference to the port in an address.
+    @note Because this is direct access, the port value is in network order.
+    @see ats_ip_port_host_order.
+    @return A reference to the port value in an IPv4 or IPv6 address.
+    @internal This is primarily for internal use but it might be handy for
+    clients so it is exposed.
+*/
+inline in_port_t& ats_ip_port_cast(sockaddr* sa) {
+  static in_port_t dummy = 0;
+  return ats_is_ip4(sa)
+    ? ats_ip4_cast(sa)->sin_port
+    : ats_is_ip6(sa)
+      ? ats_ip6_cast(sa)->sin6_port
+      : (dummy = 0)
+    ;
+}
+inline in_port_t const& ats_ip_port_cast(sockaddr const* sa) {
+  return ats_ip_port_cast(const_cast<sockaddr*>(sa));
+}
+inline in_port_t const& ats_ip_port_cast(IpEndpoint const* ip) {
+  return ats_ip_port_cast(const_cast<sockaddr*>(&ip->sa));
+}
+inline in_port_t& ats_ip_port_cast(IpEndpoint* ip) {
+  return ats_ip_port_cast(&ip->sa);
+}
+
+/** Access the IPv4 address.
+
+    If this is not an IPv4 address a zero valued address is returned.
+    @note This is direct access to the address so it will be in
+    network order.
+
+    @return A reference to the IPv4 address in @a addr.
+*/
+inline in_addr_t& ats_ip4_addr_cast(sockaddr* addr) {
+  static in_addr_t dummy = 0;
+  return ats_is_ip4(addr)
+    ? ats_ip4_cast(addr)->sin_addr.s_addr
+    : (dummy = 0)
+    ;
+}
+
+/** Access the IPv4 address.
+
+    If this is not an IPv4 address a zero valued address is returned.
+    @note This is direct access to the address so it will be in
+    network order.
+
+    @return A reference to the IPv4 address in @a addr.
+*/
+inline in_addr_t const& ats_ip4_addr_cast(sockaddr const* addr) {
+  static in_addr_t dummy = 0;
+  return ats_is_ip4(addr)
+    ? ats_ip4_cast(addr)->sin_addr.s_addr
+    : static_cast<in_addr_t const&>(dummy = 0)
+    ;
+}
+
+/** Access the IPv4 address.
+
+    If this is not an IPv4 address a zero valued address is returned.
+    @note This is direct access to the address so it will be in
+    network order.
+    @note Convenience overload.
+
+    @return A reference to the IPv4 address in @a addr.
+*/
+inline in_addr_t& ats_ip4_addr_cast(IpEndpoint* ip) {
+  return ats_ip4_addr_cast(&ip->sa);
+}
+
+/** Access the IPv4 address.
+
+    If this is not an IPv4 address a zero valued address is returned.
+    @note This is direct access to the address so it will be in
+    network order.
+    @note Convenience overload.
+
+    @return A reference to the IPv4 address in @a addr.
+*/
+inline in_addr_t const& ats_ip4_addr_cast(IpEndpoint const* ip) {
+  return ats_ip4_addr_cast(&ip->sa);
+}
+
+/** Access the IPv6 address.
+
+    If this is not an IPv6 address a zero valued address is returned.
+    @note This is direct access to the address so it will be in
+    network order.
+
+    @return A reference to the IPv6 address in @a addr.
+*/
+inline in6_addr& ats_ip6_addr_cast(sockaddr* addr) {
+  return ats_ip6_cast(addr)->sin6_addr;
+}
+inline in6_addr const& ats_ip6_addr_cast(sockaddr const* addr) {
+  return ats_ip6_cast(addr)->sin6_addr;
+}
+inline in6_addr& ats_ip6_addr_cast(IpEndpoint* ip) {
+  return ip->sin6.sin6_addr;
+}
+inline in6_addr const& ats_ip6_addr_cast(IpEndpoint const* ip) {
+  return ip->sin6.sin6_addr;
+}
+
+/** Cast an IP address to an array of @c uint32_t.
+    @note The size of the array is dependent on the address type which
+    must be checked independently of this function.
+    @return A pointer to the address information in @a addr or @c NULL
+    if @a addr is not an IP address.
+*/
+inline uint32_t* ats_ip_addr32_cast(sockaddr* addr) {
+  uint32_t* zret = 0;
+  switch(addr->sa_family) {
+  case AF_INET: zret = reinterpret_cast<uint32_t*>(&ats_ip4_addr_cast(addr)); break;
+  case AF_INET6: zret = reinterpret_cast<uint32_t*>(&ats_ip6_addr_cast(addr)); break;
+  }
+  return zret;
+}
+inline uint32_t const* ats_ip_addr32_cast(sockaddr const* addr) {
+  return ats_ip_addr32_cast(const_cast<sockaddr*>(addr));
+}
+
+/** Cast an IP address to an array of @c uint8_t.
+    @note The size of the array is dependent on the address type which
+    must be checked independently of this function.
+    @return A pointer to the address information in @a addr or @c NULL
+    if @a addr is not an IP address.
+    @see ats_ip_addr_size
+*/
+inline uint8_t* ats_ip_addr8_cast(sockaddr* addr) {
+  uint8_t* zret = 0;
+  switch(addr->sa_family) {
+  case AF_INET: zret = reinterpret_cast<uint8_t*>(&ats_ip4_addr_cast(addr)); break;
+  case AF_INET6: zret = reinterpret_cast<uint8_t*>(&ats_ip6_addr_cast(addr)); break;
+  }
+  return zret;
+}
+inline uint8_t const* ats_ip_addr8_cast(sockaddr const* addr) {
+  return ats_ip_addr8_cast(const_cast<sockaddr*>(addr));
+}
+inline uint8_t* ats_ip_addr8_cast(IpEndpoint* ip) {
+  return ats_ip_addr8_cast(&ip->sa);
+}
+inline uint8_t const* ats_ip_addr8_cast(IpEndpoint const* ip) {
+  return ats_ip_addr8_cast(&ip->sa);
+}
+
+/// Check for loopback.
+/// @return @c true if this is an IP loopback address, @c false otherwise.
+inline bool ats_is_ip_loopback(sockaddr const* ip) {
+  return ip
+    && (
+      (AF_INET == ip->sa_family && 0x7F == ats_ip_addr8_cast(ip)[0])
+      ||
+      (AF_INET6 == ip->sa_family && IN6_IS_ADDR_LOOPBACK(&ats_ip6_addr_cast(ip)))
+    );
+}
+
+/// Check for loopback.
+/// @return @c true if this is an IP loopback address, @c false otherwise.
+inline bool ats_is_ip_loopback(IpEndpoint const* ip) {
+  return ats_is_ip_loopback(&ip->sa);
+}
+
+/// Check for multicast.
+/// @return @true if @a ip is multicast.
+inline bool ats_is_ip_multicast(sockaddr const* ip) {
+  return ip
+    && (
+      (AF_INET == ip->sa_family && 0xe == *ats_ip_addr8_cast(ip))
+      ||
+      (AF_INET6 == ip->sa_family && IN6_IS_ADDR_MULTICAST(&ats_ip6_addr_cast(ip)))
+    );
+}
+/// Check for multicast.
+/// @return @true if @a ip is multicast.
+inline bool ats_is_ip_multicast(IpEndpoint const* ip) {
+  return ats_is_ip_multicast(&ip->sa);
+}
+
+/// Check for Private.
+/// @return @true if @a ip is private.
+inline bool
+ats_is_ip_private(sockaddr const* ip) {
+  bool zret = false;
+  if (ats_is_ip4(ip)) {
+    in_addr_t a = ats_ip4_addr_cast(ip);
+    zret = ((a & htonl(0xFF000000)) == htonl(0x0A000000)) || // 10.0.0.0/8
+      ((a & htonl(0xFFC00000)) == htonl(0x64400000)) ||      // 100.64.0.0/10
+      ((a & htonl(0xFFF00000)) == htonl(0xAC100000)) ||      // 172.16.0.0/12
+      ((a & htonl(0xFFFF0000)) == htonl(0xC0A80000))         // 192.168.0.0/16
+      ;
+  } else if (ats_is_ip6(ip)) {
+    in6_addr a = ats_ip6_addr_cast(ip);
+    zret = ((a.s6_addr[0] & 0xFE) == 0xFC) // fc00::/7
+      ;
+  }
+  return zret;
+}
+
+/// Check for Private.
+/// @return @true if @a ip is private.
+inline bool
+ats_is_ip_private(IpEndpoint const* ip) {
+  return ats_is_ip_private(&ip->sa);
+}
+
+/// Check for Link Local.
+/// @return @true if @a ip is link local.
+inline bool
+ats_is_ip_linklocal(sockaddr const* ip) {
+  bool zret = false;
+  if (ats_is_ip4(ip)) {
+    in_addr_t a = ats_ip4_addr_cast(ip);
+    zret = ((a & htonl(0xFFFF0000)) == htonl(0xA9FE0000)) // 169.254.0.0/16
+      ;
+  } else if (ats_is_ip6(ip)) {
+    in6_addr a = ats_ip6_addr_cast(ip);
+    zret = ((a.s6_addr[0] == 0xFE) && ((a.s6_addr[1] & 0xC0) == 0x80)) // fe80::/10
+      ;
+  }
+  return zret;
+}
+
+/// Check for Link Local.
+/// @return @true if @a ip is link local.
+inline bool
+ats_is_ip_linklocal(IpEndpoint const* ip) {
+  return ats_is_ip_linklocal(&ip->sa);
+}
+
+/// Check for being "any" address.
+/// @return @c true if @a ip is the any / unspecified address.
+inline bool ats_is_ip_any(sockaddr const* ip) {
+  return (ats_is_ip4(ip) && INADDR_ANY == ats_ip4_addr_cast(ip)) ||
+    (ats_is_ip6(ip) && IN6_IS_ADDR_UNSPECIFIED(&ats_ip6_addr_cast(ip)))
+    ;
+}
+  
+/// @name Address operators
+//@{
+
+/** Copy the address from @a src to @a dst if it's IP.
+    This attempts to do a minimal copy based on the type of @a src.
+    If @a src is not an IP address type it is @b not copied and
+    @a dst is marked as invalid.
+    @return @c true if @a src was an IP address, @c false otherwise.
+*/
+inline bool ats_ip_copy(
+  sockaddr* dst, ///< Destination object.
+  sockaddr const* src ///< Source object.
+) {
+  size_t n = 0;
+  if (src) {
+    switch (src->sa_family) {
+    case AF_INET: n = sizeof(sockaddr_in); break;
+    case AF_INET6: n = sizeof(sockaddr_in6); break;
+    }
+  }
+  if (n) {
+    memcpy(dst, src, n);
+#if HAVE_STRUCT_SOCKADDR_SA_LEN
+    dst->sa_len = n;
+#endif
+  } else {
+    ats_ip_invalidate(dst);
+  }
+  return n != 0;
+}
+
+inline bool ats_ip_copy(
+  IpEndpoint* dst, ///< Destination object.
+  sockaddr const* src ///< Source object.
+) {
+  return ats_ip_copy(&dst->sa, src);
+}
+inline bool ats_ip_copy(
+  IpEndpoint* dst, ///< Destination object.
+  IpEndpoint const* src ///< Source object.
+) {
+  return ats_ip_copy(&dst->sa, &src->sa);
+}
+inline bool ats_ip_copy(
+  sockaddr* dst,
+  IpEndpoint const* src
+) {
+  return ats_ip_copy(dst, &src->sa);
+}
+
+/** Compare two addresses.
+    This is useful for IPv4, IPv6, and the unspecified address type.
+    If the addresses are of different types they are ordered
+
+    Non-IP < IPv4 < IPv6
+
+     - all non-IP addresses are the same ( including @c AF_UNSPEC )
+     - IPv4 addresses are compared numerically (host order)
+     - IPv6 addresses are compared byte wise in network order (MSB to LSB)
+
+    @return
+      - -1 if @a lhs is less than @a rhs.
+      - 0 if @a lhs is identical to @a rhs.
+      - 1 if @a lhs is greater than @a rhs.
+
+    @internal This looks like a lot of code for an inline but I think it
+    should compile down to something reasonable.
+*/
+inline int ats_ip_addr_cmp(
+  sockaddr const* lhs, ///< Left hand operand.
+  sockaddr const* rhs ///< Right hand operand.
+) {
+  int zret = 0;
+  uint16_t rtype = rhs->sa_family;
+  uint16_t ltype = lhs->sa_family;
+
+  // We lump all non-IP addresses into a single equivalence class
+  // that is less than an IP address. This includes AF_UNSPEC.
+  if (AF_INET == ltype) {
+    if (AF_INET == rtype) {
+      in_addr_t la = ntohl(ats_ip4_cast(lhs)->sin_addr.s_addr);
+      in_addr_t ra = ntohl(ats_ip4_cast(rhs)->sin_addr.s_addr);
+      if (la < ra) zret = -1;
+      else if (la > ra) zret = 1;
+      else zret = 0;
+    } else if (AF_INET6 == rtype) { // IPv4 < IPv6
+      zret = -1;
+    } else { // IP > not IP
+      zret = 1;
+    }
+  } else if (AF_INET6 == ltype) {
+    if (AF_INET6 == rtype) {
+      sockaddr_in6 const* lhs_in6 = ats_ip6_cast(lhs);
+      zret = memcmp(
+        &lhs_in6->sin6_addr,
+        &ats_ip6_cast(rhs)->sin6_addr,
+        sizeof(lhs_in6->sin6_addr)
+      );
+    } else {
+      zret = 1; // IPv6 greater than any other type.
+    }
+  } else if (AF_INET == rtype || AF_INET6 == rtype) {
+    // ltype is non-IP so it's less than either IP type.
+    zret = -1;
+  } else {
+    // Both types are non-IP so they're equal.
+    zret = 0;
+  }
+
+  return zret;
+}
+
+/** Compare two addresses.
+    @note Convenience overload.
+    @see ats_ip_addr_cmp(sockaddr const* lhs, sockaddr const* rhs)
+*/
+inline int ats_ip_addr_cmp(IpEndpoint const* lhs, IpEndpoint const* rhs) {
+  return ats_ip_addr_cmp(&lhs->sa, &rhs->sa);
+}
+
+/** Check if two addresses are equal.
+    @return @c true if @a lhs and @a rhs point to equal addresses,
+    @c false otherwise.
+*/
+inline bool ats_ip_addr_eq(sockaddr const* lhs, sockaddr const* rhs) {
+  return 0 == ats_ip_addr_cmp(lhs, rhs);
+}
+inline bool ats_ip_addr_eq(IpEndpoint const* lhs, IpEndpoint const* rhs) {
+  return 0 == ats_ip_addr_cmp(&lhs->sa, &rhs->sa);
+}
+
+inline bool operator == (IpEndpoint const& lhs, IpEndpoint const& rhs) {
+  return 0 == ats_ip_addr_cmp(&lhs.sa, &rhs.sa);
+}
+inline bool operator != (IpEndpoint const& lhs, IpEndpoint const& rhs) {
+  return 0 != ats_ip_addr_cmp(&lhs.sa, &rhs.sa);
+}
+
+//@}
+
+/// Get IP TCP/UDP port.
+/// @return The port in host order for an IPv4 or IPv6 address,
+/// or zero if neither.
+inline in_port_t ats_ip_port_host_order(
+  sockaddr const* addr ///< Address with port.
+) {
+  // We can discard the const because this function returns
+  // by value.
+  return ntohs(ats_ip_port_cast(const_cast<sockaddr*>(addr)));
+}
+
+/// Get IP TCP/UDP port.
+/// @return The port in host order for an IPv4 or IPv6 address,
+/// or zero if neither.
+inline in_port_t ats_ip_port_host_order(
+  IpEndpoint const* ip ///< Address with port.
+) {
+  // We can discard the const because this function returns
+  // by value.
+  return ntohs(ats_ip_port_cast(const_cast<sockaddr*>(&ip->sa)));
+}
+
+
+/** Extract the IPv4 address.
+    @return Host order IPv4 address.
+*/
+inline in_addr_t ats_ip4_addr_host_order(
+  sockaddr const* addr ///< Address object.
+) {
+  return ntohl(ats_ip4_addr_cast(const_cast<sockaddr*>(addr)));
+}
+
+/// Write IPv4 data to storage @a dst.
+inline sockaddr* ats_ip4_set(
+  sockaddr_in* dst, ///< Destination storage.
+  in_addr_t addr, ///< address, IPv4 network order.
+  in_port_t port = 0 ///< port, network order.
+) {
+  ink_zero(*dst);
+#if HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+  dst->sin_len = sizeof(sockaddr_in);
+#endif
+  dst->sin_family = AF_INET;
+  dst->sin_addr.s_addr = addr;
+  dst->sin_port = port;
+  return ats_ip_sa_cast(dst);
+}
+
+/** Write IPv4 data to @a dst.
+    @note Convenience overload.
+*/
+inline sockaddr* ats_ip4_set(
+  IpEndpoint* dst, ///< Destination storage.
+  in_addr_t ip4, ///< address, IPv4 network order.
+  in_port_t port = 0 ///< port, network order.
+) {
+  return ats_ip4_set(&dst->sin, ip4, port);
+}
+
+/** Write IPv4 data to storage @a dst.
+
+    This is the generic overload. Caller must verify that @a dst is at
+    least @c sizeof(sockaddr_in) bytes.
+*/
+inline sockaddr* ats_ip4_set(
+  sockaddr* dst, ///< Destination storage.
+  in_addr_t ip4, ///< address, IPv4 network order.
+  in_port_t port = 0 ///< port, network order.
+) {
+  return ats_ip4_set(ats_ip4_cast(dst), ip4, port);
+}
+/** Write IPv6 data to storage @a dst.
+    @return @a dst cast to @c sockaddr*.
+ */
+inline sockaddr* ats_ip6_set(
+  sockaddr_in6* dst, ///< Destination storage.
+  in6_addr const& addr, ///< address in network order.
+  in_port_t port = 0 ///< Port, network order.
+) {
+  ink_zero(*dst);
+#if HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+  dst->sin6_len = sizeof(sockaddr_in6);
+#endif
+  dst->sin6_family = AF_INET6;
+  memcpy(&dst->sin6_addr, &addr, sizeof addr);
+  dst->sin6_port = port;
+  return ats_ip_sa_cast(dst);
+}
+/** Write IPv6 data to storage @a dst.
+    @return @a dst cast to @c sockaddr*.
+ */
+inline sockaddr* ats_ip6_set(
+  sockaddr* dst, ///< Destination storage.
+  in6_addr const& addr, ///< address in network order.
+  in_port_t port = 0 ///< Port, network order.
+) {
+  return ats_ip6_set(ats_ip6_cast(dst), addr, port);
+}
+/** Write IPv6 data to storage @a dst.
+    @return @a dst cast to @c sockaddr*.
+ */
+inline sockaddr* ats_ip6_set(
+  IpEndpoint* dst, ///< Destination storage.
+  in6_addr const& addr, ///< address in network order.
+  in_port_t port = 0 ///< Port, network order.
+) {
+  return ats_ip6_set(&dst->sin6, addr, port);
+}
+
+/** Write a null terminated string for @a addr to @a dst.
+    A buffer of size INET6_ADDRSTRLEN suffices, including a terminating nul.
+ */
+char const* ats_ip_ntop(
+  const sockaddr *addr, ///< Address.
+  char *dst, ///< Output buffer.
+  size_t size ///< Length of buffer.
+);
+
+/** Write a null terminated string for @a addr to @a dst.
+    A buffer of size INET6_ADDRSTRLEN suffices, including a terminating nul.
+ */
+inline char const* ats_ip_ntop(
+  IpEndpoint const* addr, ///< Address.
+  char *dst, ///< Output buffer.
+  size_t size ///< Length of buffer.
+) {
+  return ats_ip_ntop(&addr->sa, dst, size);
+}
+
+/// Buffer size sufficient for IPv6 address and port.
+static size_t const INET6_ADDRPORTSTRLEN = INET6_ADDRSTRLEN + 6;
+/// Convenience type for address formatting.
+typedef char ip_text_buffer[INET6_ADDRSTRLEN];
+/// Convenience type for address formatting.
+typedef char ip_port_text_buffer[INET6_ADDRPORTSTRLEN];
+
+/** Write a null terminated string for @a addr to @a dst with port.
+    A buffer of size INET6_ADDRPORTSTRLEN suffices, including a terminating nul.
+ */
+char const* ats_ip_nptop(
+  const sockaddr *addr, ///< Address.
+  char *dst, ///< Output buffer.
+  size_t size ///< Length of buffer.
+);
+
+/** Write a null terminated string for @a addr to @a dst with port.
+    A buffer of size INET6_ADDRPORTSTRLEN suffices, including a terminating nul.
+ */
+inline char const* ats_ip_nptop(
+  IpEndpoint const*addr, ///< Address.
+  char *dst, ///< Output buffer.
+  size_t size ///< Length of buffer.
+) {
+  return ats_ip_nptop(&addr->sa, dst, size);
+}
+
+
+/** Convert @a text to an IP address and write it to @a addr.
+
+    @a text is expected to be an explicit address, not a hostname.  No
+    hostname resolution is done. The call must provide an @a ip large
+    enough to hold the address value.
+
+    This attempts to recognize and process a port value if
+    present. The port in @a ip is set appropriately, or to zero if no
+    port was found or it was malformed.
+
+    @note The return values are logically reversed from @c inet_pton.
+    @note This uses @c getaddrinfo internally and so involves memory
+    allocation.
+
+    @return 0 on success, non-zero on failure.
+*/
+int ats_ip_pton(
+  char const* text, ///< [in] text.
+  sockaddr* addr ///< [out] address
+);
+
+/** Convert @a text to an IP address and write it to @a addr.
+
+    @a text is expected to be an explicit address, not a hostname.  No
+    hostname resolution is done.
+
+    @note This uses @c getaddrinfo internally and so involves memory
+    allocation.
+    @note Convenience overload.
+
+    @return 0 on success, non-zero on failure.
+*/
+inline int ats_ip_pton(
+  char const* text, ///< [in] text.
+  sockaddr_in6* addr ///< [out] address
+) {
+  return ats_ip_pton(text, ats_ip_sa_cast(addr));
+}
+
+inline int ats_ip_pton(
+  char const* text, ///< [in] text.
+  IpEndpoint* addr ///< [out] address
+) {
+  return ats_ip_pton(text, &addr->sa);
+}
+
+/** Get the best address info for @a name.
+
+    @name is passed to @c getaddrinfo which does a host lookup if @a
+    name is not in IP address format. The results are examined for the
+    "best" addresses. This is only significant for the host name case
+    (for IP address data, there is at most one result). The preference is
+    Global > Non-Routable > Multicast > Loopback.
+
+    IPv4 and IPv4 results are handled independently and stored in @a
+    ip4 and @a ip6 respectively. If @a name is known to be a numeric
+    IP address @c ats_ip_pton is a better choice. Use this function
+    if the type of @a name is not known. If you want to look at the
+    addresses and not just get the "best", use @c getaddrinfo
+    directly.
+
+    @a ip4 or @a ip6 can be @c NULL and the result for that family is
+    discarded. It is legal for both to be @c NULL in which case this
+    is just a format check.
+
+    @return 0 if an address was found, non-zero otherwise.
+
+    @see ats_ip_pton
+    @see getaddrinfo
+ */
+
+int
+ats_ip_getbestaddrinfo(
+  char const* name, ///< [in] Address name (IPv4, IPv6, or host name)
+  IpEndpoint* ip4, ///< [out] Storage for IPv4 address.
+  IpEndpoint* ip6 ///< [out] Storage for IPv6 address
+);
+
+/** Generic IP address hash function.
+*/    
+uint32_t ats_ip_hash(sockaddr const* addr);
+
+/** Convert address to string as a hexidecimal value.
+    The string is always nul terminated, the output string is clipped
+    if @a dst is insufficient.
+    @return The length of the resulting string (not including nul).
+*/
+int
+ats_ip_to_hex(
+  sockaddr const* addr, ///< Address to convert. Must be IP.
+  char* dst, ///< Destination buffer.
+  size_t len ///< Length of @a dst.
+);
+
+/** Storage for an IP address.
+    In some cases we want to store just the address and not the
+    ancillary information (such as port, or flow data).
+    @note This is not easily used as an address for system calls.
+*/
+struct IpAddr {
+  typedef IpAddr self; ///< Self reference type.
+
+  /// Default construct (invalid address).
+  IpAddr() : _family(AF_UNSPEC) {}
+  /// Construct as IPv4 @a addr.
+  explicit IpAddr(
+    in_addr_t addr ///< Address to assign.
+  ) : _family(AF_INET) {
+    _addr._ip4 = addr;
+  }
+  /// Construct as IPv6 @a addr.
+  explicit IpAddr(
+    in6_addr const& addr ///< Address to assign.
+  ) : _family(AF_INET6) {
+    _addr._ip6 = addr;
+  }
+  /// Construct from @c sockaddr.
+  explicit IpAddr(sockaddr const* addr) { this->assign(addr); }
+  /// Construct from @c sockaddr_in6.
+  explicit IpAddr(sockaddr_in6 const& addr) { this->assign(ats_ip_sa_cast(&addr)); }
+  /// Construct from @c sockaddr_in6.
+  explicit IpAddr(sockaddr_in6 const* addr) { this->assign(ats_ip_sa_cast(addr)); }
+  /// Construct from @c IpEndpoint.
+  explicit IpAddr(IpEndpoint const& addr) { this->assign(&addr.sa); }
+  /// Construct from @c IpEndpoint.
+  explicit IpAddr(IpEndpoint const* addr) { this->assign(&addr->sa); }
+
+  /// Assign sockaddr storage.
+  self& assign(
+	       sockaddr const* addr ///< May be @c NULL
+	       );
+
+  /// Assign from end point.
+  self& operator = (IpEndpoint const& ip) {
+    return this->assign(&ip.sa);
+  }
+  /// Assign from IPv4 raw address.
+  self& operator = (
+    in_addr_t ip ///< Network order IPv4 address.
+  );
+  /// Assign from IPv6 raw address.
+  self& operator = (
+    in6_addr const& ip
+  );
+
+  /** Load from string.
+      The address is copied to this object if the conversion is successful,
+      otherwise this object is invalidated.
+      @return 0 on success, non-zero on failure.
+  */
+  int load(
+    char const* str ///< Nul terminated input string.
+  );
+  /** Output to a string.
+      @return The string @a dest.
+  */
+  char* toString(
+    char* dest, ///< [out] Destination string buffer.
+    size_t len ///< [in] Size of buffer.
+  ) const;
+
+  /// Equality.
+  bool operator==(self const& that) const {
+    return _family == AF_INET
+      ? (that._family == AF_INET && _addr._ip4 == that._addr._ip4)
+      : _family == AF_INET6
+        ? (that._family == AF_INET6
+          && 0 == memcmp(&_addr._ip6, &that._addr._ip6, TS_IP6_SIZE)
+          )
+        : (_family == AF_UNSPEC && that._family == AF_UNSPEC)
+    ;
+  }
+
+  /// Inequality.
+  bool operator!=(self const& that) {
+    return ! (*this == that);
+  }
+
+  /// Test for same address family.
+  /// @c return @c true if @a that is the same address family as @a this.
+  bool isCompatibleWith(self const& that);
+
+  /// Get the address family.
+  /// @return The address family.
+  uint16_t family() const;
+  /// Test for IPv4.
+  bool isIp4() const;
+  /// Test for IPv6.
+  bool isIp6() const;
+
+  /// Test for validity.
+  bool isValid() const { return _family == AF_INET || _family == AF_INET6; }
+  /// Make invalid.
+  self& invalidate() { _family = AF_UNSPEC; return *this; }
+  /// Test for multicast
+  bool isMulticast() const;
+
+  uint16_t _family; ///< Protocol family.
+  /// Address data.
+  union {
+    in_addr_t _ip4; ///< IPv4 address storage.
+    in6_addr  _ip6; ///< IPv6 address storage.
+    uint8_t   _byte[TS_IP6_SIZE]; ///< As raw bytes.
+  } _addr;
+
+  ///< Pre-constructed invalid instance.
+  static self const INVALID;
+};
+
+inline IpAddr&
+IpAddr::operator = (in_addr_t ip) {
+  _family = AF_INET;
+  _addr._ip4 = ip;
+  return *this;
+}
+
+inline IpAddr&
+IpAddr::operator = (in6_addr const& ip) {
+  _family = AF_INET6;
+  _addr._ip6 = ip;
+  return *this;
+}
+
+inline uint16_t IpAddr::family() const { return _family; }
+
+inline bool
+IpAddr::isCompatibleWith(self const& that) {
+  return this->isValid() && _family == that._family;
+}
+
+inline bool IpAddr::isIp4() const { return AF_INET == _family; }
+inline bool IpAddr::isIp6() const { return AF_INET6 == _family; }
+  /// Assign sockaddr storage.
+inline IpAddr&
+IpAddr::assign(sockaddr const* addr) {
+  if (addr) {
+    _family = addr->sa_family;
+    if (ats_is_ip4(addr)) {
+      _addr._ip4 = ats_ip4_addr_cast(addr);
+    } else if (ats_is_ip6(addr)) {
+      _addr._ip6 = ats_ip6_addr_cast(addr);
+    } else {
+      _family = AF_UNSPEC;
+    }
+  } else {
+    _family = AF_UNSPEC;
+  }
+  return *this;
+}
+
+// Associated operators.
+bool operator == (IpAddr const& lhs, sockaddr const* rhs);
+inline bool operator == (sockaddr const* lhs, IpAddr const& rhs) {
+  return rhs == lhs;
+}
+inline bool operator != (IpAddr const& lhs, sockaddr const* rhs) {
+  return ! (lhs == rhs);
+}
+inline bool operator != (sockaddr const* lhs, IpAddr const& rhs) {
+  return ! (rhs == lhs);
+}
+inline bool operator == (IpAddr const& lhs, IpEndpoint const& rhs) {
+  return lhs == &rhs.sa;
+}
+inline bool operator == (IpEndpoint const& lhs, IpAddr const& rhs) {
+  return &lhs.sa == rhs;
+}
+inline bool operator != (IpAddr const& lhs, IpEndpoint const& rhs) {
+  return ! (lhs == &rhs.sa);
+}
+inline bool operator != (IpEndpoint const& lhs, IpAddr const& rhs) {
+  return ! (rhs == &lhs.sa);
+}
+
+/// Write IP @a addr to storage @a dst.
+/// @return @s dst.
+sockaddr* ats_ip_set(
+  sockaddr* dst, ///< Destination storage.
+  IpAddr const& addr, ///< source address.
+  in_port_t port = 0 ///< port, network order.
+);
+
+/** Convert @a text to an IP address and write it to @a addr.
+    Convenience overload.
+    @return 0 on success, non-zero on failure.
+*/
+inline int ats_ip_pton(
+  char const* text, ///< [in] text.
+  IpAddr& addr ///< [out] address
+) {
+  return addr.load(text) ? 0 : -1;
+}
+
+inline IpEndpoint&
+IpEndpoint::assign(IpAddr const& addr, in_port_t port) {
+  ats_ip_set(&sa, addr, port); 
+  return *this;
+}
+
+inline IpEndpoint&
+IpEndpoint::assign(sockaddr const* ip) {
+  ats_ip_copy(&sa, ip);
+  return *this;
+}
+
+inline in_port_t&
+IpEndpoint::port() {
+  return ats_ip_port_cast(&sa);
+}
+
+inline in_port_t
+IpEndpoint::port() const {
+  return ats_ip_port_cast(&sa);
+}
+
+inline bool
+IpEndpoint::isValid() const {
+  return ats_is_ip(this);
+}
+
+inline bool IpEndpoint::isIp4() const { return AF_INET == sa.sa_family; }
+inline bool IpEndpoint::isIp6() const { return AF_INET6 == sa.sa_family; }
+inline uint16_t IpEndpoint::family() const { return sa.sa_family; }
+
+inline IpEndpoint&
+IpEndpoint::setToAnyAddr(int family) {
+  ink_zero(*this);
+  sa.sa_family = family;
+  if (AF_INET == family) {
+    sin.sin_addr.s_addr = INADDR_ANY;
+#if HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+    sin.sin_len = sizeof(sockaddr_in);
+#endif
+  } else if (AF_INET6 == family) {
+    sin6.sin6_addr = in6addr_any;
+#if HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN
+    sin6.sin6_len = sizeof(sockaddr_in6);
+#endif
+  }
+  return *this;
+}
+
+inline IpEndpoint&
+IpEndpoint::setToLoopback(int family) {
+  ink_zero(*this);
+  sa.sa_family = family;
+  if (AF_INET == family) {
+    sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#if HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
+    sin.sin_len = sizeof(sockaddr_in);
+#endif
+  } else if (AF_INET6 == family) {
+    sin6.sin6_addr = in6addr_loopback;
+#if HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN
+    sin6.sin6_len = sizeof(sockaddr_in6);
+#endif
+  }
+  return *this;
+}
+
+#endif // _ink_inet.h
diff --git a/lib/ts/ink_inout.h b/lib/ts/ink_inout.h
new file mode 100644
index 00000000..fd6e7019
--- /dev/null
+++ b/lib/ts/ink_inout.h
@@ -0,0 +1,76 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  I/O Marshalling
+
+**************************************************************************/
+
+#ifndef _INOUT_H
+#define _INOUT_H
+
+// source of good macros..
+#ifdef __cplusplus
+extern "C" {
+#endif                          /* __cplusplus */
+#include <arpa/nameser.h>
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+
+#define GETCHAR(s, cp) { \
+        (s) = *(cp)++; \
+}
+
+#define PUTCHAR(s, cp) { \
+        *(cp)++ = (s); \
+}
+
+#define	GETLONGLONG(l, cp) { \
+	(l) = *(cp)++ << 8; \
+	(l) |= *(cp)++; (l) <<= 8; \
+	(l) |= *(cp)++; (l) <<= 8; \
+	(l) |= *(cp)++; (l) <<= 8; \
+	(l) |= *(cp)++; (l) <<= 8; \
+	(l) |= *(cp)++; (l) <<= 8; \
+	(l) |= *(cp)++; (l) <<= 8; \
+	(l) |= *(cp)++; \
+}
+
+/*
+ * Warning: PUTLONGLONG destroys its first argument.
+ */
+#define	PUTLONGLONG(l, cp) { \
+	(cp)[7] = l; \
+	(cp)[6] = (l >>= 8); \
+	(cp)[5] = (l >>= 8); \
+	(cp)[4] = (l >>= 8); \
+	(cp)[3] = (l >>= 8); \
+	(cp)[2] = (l >>= 8); \
+	(cp)[1] = (l >>= 8); \
+	(cp)[0] = l >> 8; \
+	(cp) += 8; \
+}
+
+
+#endif                          /* #ifndef _INOUT_H */
diff --git a/lib/ts/ink_llqueue.h b/lib/ts/ink_llqueue.h
new file mode 100644
index 00000000..985cf444
--- /dev/null
+++ b/lib/ts/ink_llqueue.h
@@ -0,0 +1,63 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _INK_LLQUEUE_H
+#define _INK_LLQUEUE_H
+
+/****************************************************************************
+
+
+A simple linked list queue.
+****************************************************************************/
+#include "ink_mutex.h"
+#include "ink_thread.h"
+
+typedef struct llqrec_s
+{
+  struct llqrec_s *next;
+  void *data;
+} LLQrec;
+
+typedef struct llq_s
+{
+  LLQrec * head, *tail, *free;
+  uint64_t len, highwater;
+  ink_mutex mux;
+#if defined(darwin)
+  ink_sem *sema;
+#else /* !darwin */
+  ink_sem sema;
+#endif /* !darwin */
+} LLQ;
+
+LLQ *create_queue(void);
+int enqueue(LLQ * q, void *data);
+void *dequeue(LLQ * q);
+int queue_is_empty(LLQ * q);
+uint64_t queue_len(LLQ * Q);
+uint64_t queue_highwater(LLQ * Q);
+void delete_queue(LLQ * Q);     /* only deletes an empty queue but
+                                   provides symmetry. */
+
+
+#endif
diff --git a/lib/ts/ink_lockfile.h b/lib/ts/ink_lockfile.h
new file mode 100644
index 00000000..900c932b
--- /dev/null
+++ b/lib/ts/ink_lockfile.h
@@ -0,0 +1,102 @@
+/** @file
+
+  Definitions for the Lockfile class.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_LOCKFILE_H__
+#define __INK_LOCKFILE_H__
+
+#include "ink_defs.h"
+#include "ink_string.h"
+
+#define COP_LOCK       "cop.lock"
+#define MANAGER_LOCK   "manager.lock"
+#define SERVER_LOCK    "server.lock"
+
+class Lockfile
+{
+public:
+  Lockfile(void):fd(0)
+  {
+    fname[0] = '\0';
+  }
+
+  // coverity[uninit_member]
+  Lockfile(const char *filename):fd(0)
+  {
+    ink_strlcpy(fname, filename, sizeof(fname));
+  }
+
+  ~Lockfile(void)
+  {
+  }
+
+  void SetLockfileName(const char *filename)
+  {
+    ink_strlcpy(fname, filename, sizeof(fname));
+  }
+
+  const char *GetLockfileName(void)
+  {
+    return fname;
+  }
+
+  // Open()
+  //
+  // Tries to open a lock file, returning:
+  //   -errno on error
+  //   0 if someone is holding the lock (with holding_pid set)
+  //   1 if we now have a writable lock file
+  int Open(pid_t * holding_pid);
+
+  // Get()
+  //
+  // Gets write access to a lock file, and if successful, truncates
+  // file, and writes the current process ID.  Returns:
+  //   -errno on error
+  //   0 if someone is holding the lock (with holding_pid set)
+  //   1 if we now have a writable lock file
+  int Get(pid_t * holding_pid);
+
+  // Close()
+  //
+  // Closes the file handle on the opened Lockfile.
+  void Close(void);
+
+  // Kill()
+  // KillGroup()
+  //
+  // Ensures no one is holding the lock. It tries to open the lock file
+  // and if that does not succeed, it kills the process holding the lock.
+  // If the lock file open succeeds, it closes the lock file releasing
+  // the lock.
+  //
+  // The intial signal can be used to generate a core from the process while
+  // still ensuring it dies.
+  void Kill(int sig, int initial_sig = 0, const char *pname = NULL);
+  void KillGroup(int sig, int initial_sig = 0, const char *pname = NULL);
+
+private:
+  char fname[PATH_NAME_MAX];
+  int fd;
+};
+
+#endif // __LOCK_FILE_H__
diff --git a/lib/ts/ink_memory.cc b/lib/ts/ink_memory.cc
new file mode 100644
index 00000000..91aa403b
--- /dev/null
+++ b/lib/ts/ink_memory.cc
@@ -0,0 +1,241 @@
+/** @file
+
+  Memory allocation routines for libts
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "libts.h"
+
+#include <assert.h>
+#if defined(linux)
+// XXX: SHouldn't that be part of CPPFLAGS?
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 600
+#endif
+#endif
+#include <stdlib.h>
+#include <string.h>
+
+void *
+ats_malloc(size_t size)
+{
+  void *ptr = NULL;
+
+  /*
+   * There's some nasty code in libts that expects
+   * a MALLOC of a zero-sized item to work properly. Rather
+   * than allocate any space, we simply return a NULL to make
+   * certain they die quickly & don't trash things.
+   */
+
+  // Useful for tracing bad mallocs
+  // ink_stack_trace_dump();
+  if (likely(size > 0)) {
+    if (unlikely((ptr = malloc(size)) == NULL)) {
+      ink_stack_trace_dump();
+      ink_fatal(1, "ats_malloc: couldn't allocate %zu bytes", size);
+    }
+  }
+  return ptr;
+}                               /* End ats_malloc */
+
+void *
+ats_calloc(size_t nelem, size_t elsize)
+{
+  void *ptr = calloc(nelem, elsize);
+  if (unlikely(ptr == NULL)) {
+    ink_stack_trace_dump();
+    ink_fatal(1, "ats_calloc: couldn't allocate %zu %zu byte elements", nelem, elsize);
+  }
+  return ptr;
+}                               /* End ats_calloc */
+
+void *
+ats_realloc(void *ptr, size_t size)
+{
+  void *newptr = realloc(ptr, size);
+  if (unlikely(newptr == NULL)) {
+    ink_stack_trace_dump();
+    ink_fatal(1, "ats_realloc: couldn't reallocate %zu bytes", size);
+  }
+  return newptr;
+}                               /* End ats_realloc */
+
+// TODO: For Win32 platforms, we need to figure out what to do with memalign.
+// The older code had ifdef's around such calls, turning them into ats_malloc().
+void *
+ats_memalign(size_t alignment, size_t size)
+{
+  void *ptr;
+
+#if HAVE_POSIX_MEMALIGN || TS_HAS_JEMALLOC
+  if (alignment <= 8)
+    return ats_malloc(size);
+
+#if defined(openbsd)
+  if (alignment > PAGE_SIZE)
+      alignment = PAGE_SIZE;
+#endif
+
+  int retcode = posix_memalign(&ptr, alignment, size);
+
+  if (unlikely(retcode)) {
+    if (retcode == EINVAL) {
+      ink_fatal(1, "ats_memalign: couldn't allocate %zu bytes at alignment %zu - invalid alignment parameter",
+                size, alignment);
+    } else if (retcode == ENOMEM) {
+      ink_fatal(1, "ats_memalign: couldn't allocate %zu bytes at alignment %zu - insufficient memory",
+                size, alignment);
+    } else {
+      ink_fatal(1, "ats_memalign: couldn't allocate %zu bytes at alignment %zu - unknown error %d",
+                size, alignment, retcode);
+    }
+  }
+#else
+  ptr = memalign(alignment, size);
+  if (unlikely(ptr == NULL)) {
+    ink_fatal(1, "ats_memalign: couldn't allocate %zu bytes at alignment %zu",  size,  alignment);
+  }
+#endif
+  return ptr;
+}                               /* End ats_memalign */
+
+void
+ats_free(void *ptr)
+{
+  if (likely(ptr != NULL))
+    free(ptr);
+}                               /* End ats_free */
+
+void*
+ats_free_null(void *ptr)
+{
+  if (likely(ptr != NULL))
+    free(ptr);
+  return NULL;
+}                               /* End ats_free_null */
+
+void
+ats_memalign_free(void *ptr)
+{
+  if (likely(ptr))
+    free(ptr);
+}
+
+// This effectively makes mallopt() a no-op (currently) when tcmalloc
+// or jemalloc is used. This might break our usage for increasing the
+// number of mmap areas (ToDo: Do we still really need that??).
+//
+// TODO: I think we might be able to get rid of this?
+int
+ats_mallopt(int param ATS_UNUSED, int value ATS_UNUSED)
+{
+#if TS_HAS_JEMALLOC
+// TODO: jemalloc code ?
+#else
+#if TS_HAS_TCMALLOC
+// TODO: tcmalloc code ?
+#else
+#if defined(linux)
+  return mallopt(param, value);
+#endif // ! defined(linux)
+#endif // ! TS_HAS_TCMALLOC
+#endif // ! TS_HAS_JEMALLOC
+  return 0;
+}
+
+int
+ats_msync(caddr_t addr, size_t len, caddr_t end, int flags)
+{
+  size_t pagesize = ats_pagesize();
+
+  // align start back to page boundary
+  caddr_t a = (caddr_t) (((uintptr_t) addr) & ~(pagesize - 1));
+  // align length to page boundry covering region
+  size_t l = (len + (addr - a) + (pagesize - 1)) & ~(pagesize - 1);
+  if ((a + l) > end)
+    l = end - a;                // strict limit
+#if defined(linux)
+/* Fix INKqa06500
+   Under Linux, msync(..., MS_SYNC) calls are painfully slow, even on
+   non-dirty buffers. This is true as of kernel 2.2.12. We sacrifice
+   restartability under OS in order to avoid a nasty performance hit
+   from a kernel global lock. */
+#if 0
+  // this was long long ago
+  if (flags & MS_SYNC)
+    flags = (flags & ~MS_SYNC) | MS_ASYNC;
+#endif
+#endif
+  int res = msync(a, l, flags);
+  return res;
+}
+
+int
+ats_madvise(caddr_t addr, size_t len, int flags)
+{
+#if defined(linux)
+  (void) addr;
+  (void) len;
+  (void) flags;
+  return 0;
+#else
+  size_t pagesize = ats_pagesize();
+  caddr_t a = (caddr_t) (((uintptr_t) addr) & ~(pagesize - 1));
+  size_t l = (len + (addr - a) + pagesize - 1) & ~(pagesize - 1);
+  int res = 0;
+#if HAVE_POSIX_MADVISE
+  res = posix_madvise(a, l, flags);
+#else
+  res = madvise(a, l, flags);
+#endif
+  return res;
+#endif
+}
+
+int
+ats_mlock(caddr_t addr, size_t len)
+{
+  size_t pagesize = ats_pagesize();
+
+  caddr_t a = (caddr_t) (((uintptr_t) addr) & ~(pagesize - 1));
+  size_t l = (len + (addr - a) + pagesize - 1) & ~(pagesize - 1);
+  int res = mlock(a, l);
+  return res;
+}
+
+
+/*-------------------------------------------------------------------------
+  Moved from old ink_resource.h
+  -------------------------------------------------------------------------*/
+char *
+_xstrdup(const char *str, int length, const char* /* path ATS_UNUSED */)
+{
+  char *newstr;
+
+  if (likely(str)) {
+    if (length < 0)
+      length = strlen(str);
+
+    newstr = (char *)ats_malloc(length + 1);
+    ink_strlcpy(newstr, str, length + 1);
+    return newstr;
+  }
+  return NULL;
+}
diff --git a/lib/ts/ink_memory.h b/lib/ts/ink_memory.h
new file mode 100644
index 00000000..69ac56fb
--- /dev/null
+++ b/lib/ts/ink_memory.h
@@ -0,0 +1,259 @@
+/** @file
+
+  Memory allocation routines for libts.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#ifndef _ink_memory_h_
+#define	_ink_memory_h_
+
+#include <ctype.h>
+#include <string.h>
+#include <strings.h>
+
+#include "ink_config.h"
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#if HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+
+#if TS_HAS_JEMALLOC
+#include <jemalloc/jemalloc.h>
+/* TODO: Should this have a value ? */
+#define ATS_MMAP_MAX 0
+#else
+#if HAVE_MALLOC_H
+#include <malloc.h>
+#define ATS_MMAP_MAX M_MMAP_MAX
+#endif // ! HAVE_MALLOC_H
+#endif // ! TS_HAS_JEMALLOC
+
+#ifndef MADV_NORMAL
+#define MADV_NORMAL 0
+#endif
+
+#ifndef MADV_RANDOM
+#define MADV_RANDOM 1
+#endif
+
+#ifndef MADV_SEQUENTIAL
+#define MADV_SEQUENTIAL 2
+#endif
+
+#ifndef MADV_WILLNEED
+#define MADV_WILLNEED 3
+#endif
+
+#ifndef MADV_DONTNEED
+#define MADV_DONTNEED 4
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif                          /* __cplusplus */
+
+  void *  ats_malloc(size_t size);
+  void *  ats_calloc(size_t nelem, size_t elsize);
+  void *  ats_realloc(void *ptr, size_t size);
+  void *  ats_memalign(size_t alignment, size_t size);
+  void    ats_free(void *ptr);
+  void *  ats_free_null(void *ptr);
+  void    ats_memalign_free(void *ptr);
+  int     ats_mallopt(int param, int value);
+
+  int     ats_msync(caddr_t addr, size_t len, caddr_t end, int flags);
+  int     ats_madvise(caddr_t addr, size_t len, int flags);
+  int     ats_mlock(caddr_t addr, size_t len);
+
+  static inline size_t __attribute__((const)) ats_pagesize(void)
+  {
+    static size_t page_size;
+
+    if (page_size)
+      return page_size;
+
+#if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
+    page_size = (size_t)sysconf(_SC_PAGESIZE);
+#elif defined(HAVE_GETPAGESIZE)
+    page_size = (size_t)getpagesize()
+#else
+    page_size = (size_t)8192;
+#endif
+
+    return page_size;
+  }
+
+/* Some convenience wrappers around strdup() functionality */
+char *_xstrdup(const char *str, int length, const char *path);
+
+#define ats_strdup(p)        _xstrdup((p), -1, NULL)
+#define ats_strndup(p,n)     _xstrdup((p), n, NULL)
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+/** Set data to zero.
+
+    Calls @c memset on @a t with a value of zero and a length of @c
+    sizeof(t). This can be used on ordinary and array variables. While
+    this can be used on variables of intrinsic type it's inefficient.
+
+    @note Because this uses templates it cannot be used on unnamed or
+    locally scoped structures / classes. This is an inherent
+    limitation of templates.
+
+    Examples:
+    @code
+    foo bar; // value.
+    ink_zero(bar); // zero bar.
+
+    foo *bar; // pointer.
+    ink_zero(bar); // WRONG - makes the pointer @a bar zero.
+    ink_zero(*bar); // zero what bar points at.
+
+    foo bar[ZOMG]; // Array of structs.
+    ink_zero(bar); // Zero all structs in array.
+
+    foo *bar[ZOMG]; // array of pointers.
+    ink_zero(bar); // zero all pointers in the array.
+    @endcode
+    
+ */
+template < typename T > inline void
+ink_zero(T& t) {
+  memset(&t, 0, sizeof(t));
+}
+
+/** Locally scoped holder for a chunk of memory allocated via these functions.
+    If this pointer is assigned the current memory (if any) is freed.
+    The memory is also freed when the object is destructed. This makes
+    handling temporary memory in a function more robust.
+
+    @internal A poor substitute for a real shared pointer copy on write
+    class but one step at a time. It's better than doing this by
+    hand every time.
+*/
+template <typename T> class xptr {
+ public:
+  typedef xptr self;
+
+ xptr()
+   : m_ptr(0)
+    { }
+
+  /// Construct from allocated memory.
+  /// @note @a ptr must refer to memory allocated @c ats_malloc.
+  explicit xptr(T* ptr)
+    : m_ptr(ptr)
+  { }
+
+  /// Construct and initialized with memory for @a n instances of @a T.
+  explicit xptr(size_t n)
+    : m_ptr((T *)ats_malloc(sizeof(T) * n))
+    { }
+
+  /// Destructor - free memory held by this instance.
+  ~xptr()
+    {
+      ats_free(m_ptr);
+    }
+
+  /// Assign memory.
+  /// @note @a ptr must be allocated via @c ats_malloc.
+  self& operator = (T* ptr) {
+    ats_free(m_ptr);
+    m_ptr = ptr;
+    return *this;
+  }
+
+  /// Auto convert to a raw pointer.
+  operator T* () { return m_ptr; }
+
+  /// Auto convert to raw pointer.
+  operator T const* () const { return m_ptr; }
+
+  /// Boolean operator. Returns true if we are pointing to valid memory.
+  operator bool() const { return m_ptr != 0; }
+
+  /** Release memory from control of this instance.
+
+      @note Although direct assignment is forbidden due to the
+      non-obvious semantics, a pointer can be moved (@b not copied) from
+      one instance to another using this method.
+      @code
+      new_ptr = old_ptr.release();
+      @endcode
+      This is by design so any such transfer is always explicit.
+  */
+  T* release() {
+    T* zret = m_ptr;
+    m_ptr = 0;
+    return zret;
+  }
+
+ private:
+  T* m_ptr; ///< Pointer to allocated memory.
+
+  /// Copy constructor - forbidden.
+  xptr(self const& that);
+
+  /// Self assignment - forbidden.
+  self& operator = (self const& that);
+};
+
+
+// Special operators for xptr<char>
+/** Combine two strings as file paths.
+    Trailing and leading separators for @a lhs and @a rhs respectively
+    are handled to yield exactly one separator.
+    @return A newly @x ats_malloc string of the combined paths.
+*/
+inline char*
+path_join (xptr<char> const& lhs, xptr<char> const& rhs)
+{
+  size_t ln = strlen(lhs);
+  size_t rn = strlen(rhs);
+  char const* rptr = rhs; // May need to be modified.
+
+  if (ln && lhs[ln-1] == '/') --ln; // drop trailing separator.
+  if (rn && *rptr == '/') --rn, ++rptr; // drop leading separator.
+
+  char* x = static_cast<char*>(ats_malloc(ln + rn + 2));
+
+  memcpy(x, lhs, ln);
+  x[ln] = '/';
+  memcpy(x + ln + 1,  rptr, rn);
+  x[ln+rn+1] = 0; // terminate string.
+
+  return x;
+}
+
+#endif  /* __cplusplus */
+
+#endif
diff --git a/lib/ts/ink_mutex.cc b/lib/ts/ink_mutex.cc
new file mode 100644
index 00000000..9036f556
--- /dev/null
+++ b/lib/ts/ink_mutex.cc
@@ -0,0 +1,32 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_error.h"
+#include "ink_defs.h"
+#include <assert.h>
+#include "stdio.h"
+#include "ink_mutex.h"
+
+x_pthread_mutexattr_t _g_mattr;
+
+ink_mutex __global_death = PTHREAD_MUTEX_INITIALIZER;
diff --git a/lib/ts/ink_mutex.h b/lib/ts/ink_mutex.h
new file mode 100644
index 00000000..326d6bb6
--- /dev/null
+++ b/lib/ts/ink_mutex.h
@@ -0,0 +1,130 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_mutex_h_
+#define _ink_mutex_h_
+
+/***********************************************************************
+
+    Fast Mutex
+
+    Uses atomic memory operations to minimize blocking.
+
+
+***********************************************************************/
+#include <stdio.h>
+
+#include "ink_defs.h"
+
+#if defined(POSIX_THREAD)
+#include <pthread.h>
+#include <stdlib.h>
+
+typedef pthread_mutex_t ink_mutex;
+
+// just a wrapper so that the constructor gets executed
+// before the first call to ink_mutex_init();
+class x_pthread_mutexattr_t
+{
+public:
+  pthread_mutexattr_t attr;
+  x_pthread_mutexattr_t();
+  ~x_pthread_mutexattr_t()
+  {
+  }
+};
+inline
+x_pthread_mutexattr_t::x_pthread_mutexattr_t()
+{
+  pthread_mutexattr_init(&attr);
+#ifndef POSIX_THREAD_10031c
+  pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
+#endif
+}
+
+extern class x_pthread_mutexattr_t _g_mattr;
+
+static inline int
+ink_mutex_init(ink_mutex * m, const char *name)
+{
+  (void) name;
+
+#if defined(solaris)
+  if ( pthread_mutex_init(m, NULL) != 0 ) {
+    abort();
+  }
+#else
+  if (pthread_mutex_init(m, &_g_mattr.attr) != 0) {
+    abort();
+  }
+#endif
+  return 0;
+}
+
+static inline int
+ink_mutex_destroy(ink_mutex * m)
+{
+  return pthread_mutex_destroy(m);
+}
+
+static inline int
+ink_mutex_acquire(ink_mutex * m)
+{
+  if (pthread_mutex_lock(m) != 0) {
+    abort();
+  }
+  return 0;
+}
+
+static inline int
+ink_mutex_release(ink_mutex * m)
+{
+  if (pthread_mutex_unlock(m) != 0) {
+    abort();
+  }
+  return 0;
+}
+
+static inline int
+ink_mutex_try_acquire(ink_mutex * m)
+{
+  return pthread_mutex_trylock(m) == 0;
+}
+
+#endif /* #if defined(POSIX_THREAD) */
+
+struct ink_scoped_mutex
+{
+  explicit ink_scoped_mutex(ink_mutex& m) : mtx(m) {
+    ink_mutex_acquire(&mtx);
+  }
+
+  ~ink_scoped_mutex() {
+    ink_mutex_release(&mtx);
+  }
+
+private:
+  ink_mutex& mtx;
+};
+
+#endif /* _ink_mutex_h_ */
diff --git a/lib/ts/ink_platform.h b/lib/ts/ink_platform.h
new file mode 100644
index 00000000..35eba590
--- /dev/null
+++ b/lib/ts/ink_platform.h
@@ -0,0 +1,216 @@
+/** @file
+
+  Platform specific defines and includes, this is to make the build
+  more portable.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_platform_h
+#define _ink_platform_h
+
+#include "ink_config.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+#ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#include <ctype.h>
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#include <errno.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#include <fcntl.h>
+
+#include <limits.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <sys/stat.h>
+#include <assert.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/file.h>
+#include <sys/resource.h>
+
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/sem.h>
+
+#include <sys/param.h>
+#include <sys/un.h>
+
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_IN_SYSTM_H
+# include <netinet/in_systm.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+# include <netinet/tcp.h>
+#endif
+#ifdef HAVE_NETINET_IP_H
+# include <netinet/ip.h>
+#endif
+#ifdef HAVE_NETINET_IP_ICMP_H
+# include <netinet/ip_icmp.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <signal.h>
+#ifdef HAVE_SIGINFO_H
+# include <siginfo.h>
+#endif
+#ifdef HAVE_WAIT_H
+# include <wait.h>
+#endif
+
+#include <syslog.h>
+#include <pwd.h>
+#include <poll.h>
+
+#if TS_USE_EPOLL
+#include <sys/epoll.h>
+#endif
+#if TS_USE_KQUEUE
+#include <sys/event.h>
+#endif
+#if TS_USE_PORT
+#include <port.h>
+#endif
+
+
+#ifdef HAVE_VALUES_H
+# include <values.h>
+#endif
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#endif
+
+#include <errno.h>
+#include <dirent.h>
+
+#ifdef HAVE_CPIO_H
+# include <cpio.h>
+#endif
+
+struct ifafilt;
+#include <net/if.h>
+
+#ifdef HAVE_STROPTS_H
+#include <stropts.h>
+#endif
+
+//
+// Gnu C++ doesn't define __STDC__ == 0 as needed to
+// have ip_hl be defined.
+//
+#if defined(__GNUC__) && !defined(__STDC__)
+#define __STDC__ 0
+#endif
+
+#ifdef HAVE_MACHINE_ENDIAN_H
+# include <machine/endian.h>
+#endif
+#ifdef HAVE_ENDIAN_H
+# include <endian.h>
+#endif
+#ifdef HAVE_SYS_BYTEORDER_H
+# include <sys/byteorder.h>
+#endif
+
+#ifdef HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#ifdef HAVE_SYS_SOCKIO_H
+# include <sys/sockio.h>
+#endif
+
+#include <resolv.h>
+
+
+#if defined(linux)
+typedef unsigned int in_addr_t;
+#endif
+
+#ifdef HAVE_SYS_SYSINFO_H
+# include <sys/sysinfo.h>
+#endif
+
+#if !defined(darwin)
+# ifdef HAVE_SYS_SYSCTL_H
+#  include <sys/sysctl.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SYSTEMINFO_H
+# include <sys/systeminfo.h>
+#endif
+
+#ifdef HAVE_DLFCN_H
+# include <dlfcn.h>
+#endif
+#ifdef HAVE_MATH_H
+# include <math.h>
+#endif
+#ifdef HAVE_FLOAT_H
+# include <float.h>
+#endif
+
+#ifdef HAVE_SYS_SYSMACROS_H
+# include <sys/sysmacros.h>
+#endif
+
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
+
+
+#ifndef PATH_NAME_MAX
+#define PATH_NAME_MAX 4096 // instead of PATH_MAX which is inconsistent
+                           // on various OSs (linux-4096,osx/bsd-1024,
+                           //                 windows-260,etc)
+#endif
+
+#endif /* _ink_platform_h */
diff --git a/lib/ts/ink_queue.cc b/lib/ts/ink_queue.cc
new file mode 100644
index 00000000..3c28c5c9
--- /dev/null
+++ b/lib/ts/ink_queue.cc
@@ -0,0 +1,505 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+  ink_queue.cc (This used to be ink_queue.c)
+
+  This implements an atomic push/pop queue, and the freelist memory
+  pools that are built from it.
+
+  The change from ink_queue.cc to ink_queue.c resulted in some changes
+  in access and store of 64 bit values. This is standardized by using
+  the INK_QUEUE_LD64 macro which loads the version before the pointer
+  (independent of endianness of native architecture) on 32 bit platforms
+  or loads the 64 bit quantity directory on the DECs.
+
+
+  ****************************************************************************/
+
+#include "ink_config.h"
+#include <assert.h>
+#include <memory.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include "ink_atomic.h"
+#include "ink_queue.h"
+#include "ink_memory.h"
+#include "ink_error.h"
+#include "ink_assert.h"
+#include "ink_queue_ext.h"
+#include "ink_align.h"
+
+inkcoreapi volatile int64_t fastalloc_mem_in_use = 0;
+inkcoreapi volatile int64_t fastalloc_mem_total = 0;
+
+/*
+ * SANITY and DEADBEEF are compute-intensive memory debugging to
+ * help in diagnosing freelist corruption.  We turn them off in
+ * release builds.
+ */
+
+#ifdef DEBUG
+#define SANITY
+#define DEADBEEF
+#endif
+
+// #define MEMPROTECT 1
+
+#define MEMPROTECT_SIZE  0x200
+
+#ifdef MEMPROTECT
+static const int page_size = ats_pagesize();
+#endif
+
+ink_freelist_list *freelists = NULL;
+
+inkcoreapi volatile int64_t freelist_allocated_mem = 0;
+
+#define fl_memadd(_x_) \
+   ink_atomic_increment(&freelist_allocated_mem, (int64_t) (_x_));
+
+void
+ink_freelist_init(InkFreeList **fl, const char *name, uint32_t type_size,
+                  uint32_t chunk_size, uint32_t alignment)
+{
+#if TS_USE_RECLAIMABLE_FREELIST
+  return reclaimable_freelist_init(fl, name, type_size, chunk_size, alignment);
+#else
+  InkFreeList *f;
+  ink_freelist_list *fll;
+
+  /* its safe to add to this global list because ink_freelist_init()
+     is only called from single-threaded initialization code. */
+  f = (InkFreeList *)ats_memalign(alignment, sizeof(InkFreeList));
+  fll = (ink_freelist_list *)ats_malloc(sizeof(ink_freelist_list));
+  fll->fl = f;
+  fll->next = freelists;
+  freelists = fll;
+
+  f->name = name;
+  /* quick test for power of 2 */
+  ink_assert(!(alignment & (alignment - 1)));
+  f->alignment = alignment;
+  f->chunk_size = chunk_size;
+  // Make sure we align *all* the objects in the allocation, not just the first one
+  f->type_size = INK_ALIGN(type_size, alignment);
+  SET_FREELIST_POINTER_VERSION(f->head, FROM_PTR(0), 0);
+
+  f->used = 0;
+  f->allocated = 0;
+  f->allocated_base = 0;
+  f->used_base = 0;
+  *fl = f;
+#endif
+}
+
+InkFreeList *
+ink_freelist_create(const char *name, uint32_t type_size, uint32_t chunk_size,
+                    uint32_t alignment)
+{
+  InkFreeList *f;
+
+  ink_freelist_init(&f, name, type_size, chunk_size, alignment);
+  return f;
+}
+
+#define ADDRESS_OF_NEXT(x, offset) ((void **)((char *)x + offset))
+
+#ifdef SANITY
+int fake_global_for_ink_queue = 0;
+#endif
+
+int fastmemtotal = 0;
+void *
+ink_freelist_new(InkFreeList * f)
+{
+#if TS_USE_FREELIST
+#if TS_USE_RECLAIMABLE_FREELIST
+  return reclaimable_freelist_new(f);
+#else
+  head_p item;
+  head_p next;
+  int result = 0;
+
+  do {
+    INK_QUEUE_LD(item, f->head);
+    if (TO_PTR(FREELIST_POINTER(item)) == NULL) {
+      uint32_t type_size = f->type_size;
+      uint32_t i;
+
+#ifdef MEMPROTECT
+      if (type_size >= MEMPROTECT_SIZE) {
+        if (f->alignment < page_size)
+          f->alignment = page_size;
+        type_size = ((type_size + page_size - 1) / page_size) * page_size * 2;
+      }
+#endif /* MEMPROTECT */
+
+      void *newp = NULL;
+#ifdef DEBUG
+      char *oldsbrk = (char *) sbrk(0), *newsbrk = NULL;
+#endif
+      if (f->alignment)
+        newp = ats_memalign(f->alignment, f->chunk_size * type_size);
+      else
+        newp = ats_malloc(f->chunk_size * type_size);
+      fl_memadd(f->chunk_size * type_size);
+#ifdef DEBUG
+      newsbrk = (char *) sbrk(0);
+      ink_atomic_increment(&fastmemtotal, newsbrk - oldsbrk);
+      /*      printf("fastmem %d, %d, %d\n", f->chunk_size * type_size,
+         newsbrk - oldsbrk, fastmemtotal); */
+#endif
+      SET_FREELIST_POINTER_VERSION(item, newp, 0);
+
+      ink_atomic_increment((int *) &f->allocated, f->chunk_size);
+      ink_atomic_increment(&fastalloc_mem_total, (int64_t) f->chunk_size * f->type_size);
+
+      /* free each of the new elements */
+      for (i = 0; i < f->chunk_size; i++) {
+        char *a = ((char *) FREELIST_POINTER(item)) + i * type_size;
+#ifdef DEADBEEF
+        const char str[4] = { (char) 0xde, (char) 0xad, (char) 0xbe, (char) 0xef };
+        for (int j = 0; j < (int)type_size; j++)
+          a[j] = str[j % 4];
+#endif
+        ink_freelist_free(f, a);
+#ifdef MEMPROTECT
+        if (f->type_size >= MEMPROTECT_SIZE) {
+          a += type_size - page_size;
+          if (mprotect(a, page_size, PROT_NONE) < 0)
+            perror("mprotect");
+        }
+#endif /* MEMPROTECT */
+
+      }
+      ink_atomic_increment((int *) &f->used, f->chunk_size);
+      ink_atomic_increment(&fastalloc_mem_in_use, (int64_t) f->chunk_size * f->type_size);
+
+    } else {
+      SET_FREELIST_POINTER_VERSION(next, *ADDRESS_OF_NEXT(TO_PTR(FREELIST_POINTER(item)), 0),
+                                   FREELIST_VERSION(item) + 1);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*)&f->head.data, item.data, next.data);
+#else
+       result = ink_atomic_cas((int64_t *) & f->head.data, item.data, next.data);
+#endif
+
+#ifdef SANITY
+      if (result) {
+        if (FREELIST_POINTER(item) == TO_PTR(FREELIST_POINTER(next)))
+          ink_fatal(1, "ink_freelist_new: loop detected");
+        if (((uintptr_t) (TO_PTR(FREELIST_POINTER(next)))) & 3)
+          ink_fatal(1, "ink_freelist_new: bad list");
+        if (TO_PTR(FREELIST_POINTER(next)))
+          fake_global_for_ink_queue = *(int *) TO_PTR(FREELIST_POINTER(next));
+      }
+#endif /* SANITY */
+
+    }
+  }
+  while (result == 0);
+  ink_assert(!((uintptr_t)TO_PTR(FREELIST_POINTER(item))&(((uintptr_t)f->alignment)-1)));
+
+  ink_atomic_increment((int *) &f->used, 1);
+  ink_atomic_increment(&fastalloc_mem_in_use, (int64_t) f->type_size);
+
+  return TO_PTR(FREELIST_POINTER(item));
+#endif /* TS_USE_RECLAIMABLE_FREELIST */
+#else // ! TS_USE_FREELIST
+  void *newp = NULL;
+
+  if (f->alignment)
+    newp = ats_memalign(f->alignment, f->type_size);
+  else
+    newp = ats_malloc(f->type_size);
+  return newp;
+#endif
+}
+typedef volatile void *volatile_void_p;
+
+void
+ink_freelist_free(InkFreeList * f, void *item)
+{
+#if TS_USE_FREELIST
+#if TS_USE_RECLAIMABLE_FREELIST
+  return reclaimable_freelist_free(f, item);
+#else
+  volatile_void_p *adr_of_next = (volatile_void_p *) ADDRESS_OF_NEXT(item, 0);
+  head_p h;
+  head_p item_pair;
+  int result;
+
+  // ink_assert(!((long)item&(f->alignment-1))); XXX - why is this no longer working? -bcall
+
+#ifdef DEADBEEF
+  {
+    static const char str[4] = { (char) 0xde, (char) 0xad, (char) 0xbe, (char) 0xef };
+
+    // set the entire item to DEADBEEF
+    for (int j = 0; j < (int)f->type_size; j++)
+      ((char*)item)[j] = str[j % 4];
+  }
+#endif /* DEADBEEF */
+
+  result = 0;
+  do {
+    INK_QUEUE_LD(h, f->head);
+#ifdef SANITY
+    if (TO_PTR(FREELIST_POINTER(h)) == item)
+      ink_fatal(1, "ink_freelist_free: trying to free item twice");
+    if (((uintptr_t) (TO_PTR(FREELIST_POINTER(h)))) & 3)
+      ink_fatal(1, "ink_freelist_free: bad list");
+    if (TO_PTR(FREELIST_POINTER(h)))
+      fake_global_for_ink_queue = *(int *) TO_PTR(FREELIST_POINTER(h));
+#endif /* SANITY */
+    *adr_of_next = FREELIST_POINTER(h);
+    SET_FREELIST_POINTER_VERSION(item_pair, FROM_PTR(item), FREELIST_VERSION(h));
+    INK_MEMORY_BARRIER;
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) & f->head, h.data, item_pair.data);
+#else
+       result = ink_atomic_cas((int64_t *) & f->head, h.data, item_pair.data);
+#endif
+
+  }
+  while (result == 0);
+
+  ink_atomic_increment((int *) &f->used, -1);
+  ink_atomic_increment(&fastalloc_mem_in_use, -(int64_t) f->type_size);
+#endif /* TS_USE_RECLAIMABLE_FREELIST */
+#else
+  if (f->alignment)
+    ats_memalign_free(item);
+  else
+    ats_free(item);
+#endif
+}
+
+void
+ink_freelists_snap_baseline()
+{
+#if TS_USE_FREELIST
+  ink_freelist_list *fll;
+  fll = freelists;
+  while (fll) {
+    fll->fl->allocated_base = fll->fl->allocated;
+    fll->fl->used_base = fll->fl->used;
+    fll = fll->next;
+  }
+#else // ! TS_USE_FREELIST
+  // TODO?
+#endif
+}
+
+void
+ink_freelists_dump_baselinerel(FILE * f)
+{
+#if TS_USE_FREELIST
+  ink_freelist_list *fll;
+  if (f == NULL)
+    f = stderr;
+
+  fprintf(f, "     allocated      |       in-use       |  count  | type size  |   free list name\n");
+  fprintf(f, "  relative to base  |  relative to base  |         |            |                 \n");
+  fprintf(f, "--------------------|--------------------|---------|------------|----------------------------------\n");
+
+  fll = freelists;
+  while (fll) {
+    int a = fll->fl->allocated - fll->fl->allocated_base;
+    if (a != 0) {
+      fprintf(f, " %18" PRIu64 " | %18" PRIu64 " | %7u | %10u | memory/%s\n",
+              (uint64_t)(fll->fl->allocated - fll->fl->allocated_base) * (uint64_t)fll->fl->type_size,
+              (uint64_t)(fll->fl->used- fll->fl->used_base) * (uint64_t)fll->fl->type_size,
+              fll->fl->used - fll->fl->used_base, fll->fl->type_size, fll->fl->name ? fll->fl->name : "<unknown>");
+    }
+    fll = fll->next;
+  }
+#else // ! TS_USE_FREELIST
+  (void)f;
+#endif
+}
+
+void
+ink_freelists_dump(FILE * f)
+{
+#if TS_USE_FREELIST
+  ink_freelist_list *fll;
+  if (f == NULL)
+    f = stderr;
+
+  fprintf(f, "     allocated      |        in-use      | type size  |   free list name\n");
+  fprintf(f, "--------------------|--------------------|------------|----------------------------------\n");
+
+  fll = freelists;
+  while (fll) {
+    fprintf(f, " %18" PRIu64 " | %18" PRIu64 " | %10u | memory/%s\n",
+            (uint64_t)fll->fl->allocated * (uint64_t)fll->fl->type_size,
+            (uint64_t)fll->fl->used * (uint64_t)fll->fl->type_size, fll->fl->type_size, fll->fl->name ? fll->fl->name : "<unknown>");
+    fll = fll->next;
+  }
+#else // ! TS_USE_FREELIST
+  (void)f;
+#endif
+}
+
+
+void
+ink_atomiclist_init(InkAtomicList * l, const char *name, uint32_t offset_to_next)
+{
+  l->name = name;
+  l->offset = offset_to_next;
+  SET_FREELIST_POINTER_VERSION(l->head, FROM_PTR(0), 0);
+}
+
+void *
+ink_atomiclist_pop(InkAtomicList * l)
+{
+  head_p item;
+  head_p next;
+  int result = 0;
+  do {
+    INK_QUEUE_LD(item, l->head);
+    if (TO_PTR(FREELIST_POINTER(item)) == NULL)
+      return NULL;
+    SET_FREELIST_POINTER_VERSION(next, *ADDRESS_OF_NEXT(TO_PTR(FREELIST_POINTER(item)), l->offset),
+                                 FREELIST_VERSION(item) + 1);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) & l->head.data, item.data, next.data);
+#else
+       result = ink_atomic_cas((int64_t *) & l->head.data, item.data, next.data);
+#endif
+  }
+  while (result == 0);
+  {
+    void *ret = TO_PTR(FREELIST_POINTER(item));
+    *ADDRESS_OF_NEXT(ret, l->offset) = NULL;
+    return ret;
+  }
+}
+
+void *
+ink_atomiclist_popall(InkAtomicList * l)
+{
+  head_p item;
+  head_p next;
+  int result = 0;
+  do {
+    INK_QUEUE_LD(item, l->head);
+    if (TO_PTR(FREELIST_POINTER(item)) == NULL)
+      return NULL;
+    SET_FREELIST_POINTER_VERSION(next, FROM_PTR(NULL), FREELIST_VERSION(item) + 1);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) & l->head.data, item.data, next.data);
+#else
+       result = ink_atomic_cas((int64_t *) & l->head.data, item.data, next.data);
+#endif
+  }
+  while (result == 0);
+  {
+    void *ret = TO_PTR(FREELIST_POINTER(item));
+    void *e = ret;
+    /* fixup forward pointers */
+    while (e) {
+      void *n = TO_PTR(*ADDRESS_OF_NEXT(e, l->offset));
+      *ADDRESS_OF_NEXT(e, l->offset) = n;
+      e = n;
+    }
+    return ret;
+  }
+}
+
+void *
+ink_atomiclist_push(InkAtomicList * l, void *item)
+{
+  volatile_void_p *adr_of_next = (volatile_void_p *) ADDRESS_OF_NEXT(item, l->offset);
+  head_p head;
+  head_p item_pair;
+  int result = 0;
+  volatile void *h = NULL;
+  do {
+    INK_QUEUE_LD(head, l->head);
+    h = FREELIST_POINTER(head);
+    *adr_of_next = h;
+    ink_assert(item != TO_PTR(h));
+    SET_FREELIST_POINTER_VERSION(item_pair, FROM_PTR(item), FREELIST_VERSION(head));
+    INK_MEMORY_BARRIER;
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) & l->head, head.data, item_pair.data);
+#else
+       result = ink_atomic_cas((int64_t *) & l->head, head.data, item_pair.data);
+#endif
+  }
+  while (result == 0);
+
+  return TO_PTR(h);
+}
+
+void *
+ink_atomiclist_remove(InkAtomicList * l, void *item)
+{
+  head_p head;
+  void *prev = NULL;
+  void **addr_next = ADDRESS_OF_NEXT(item, l->offset);
+  void *item_next = *addr_next;
+  int result = 0;
+
+  /*
+   * first, try to pop it if it is first
+   */
+  INK_QUEUE_LD(head, l->head);
+  while (TO_PTR(FREELIST_POINTER(head)) == item) {
+    head_p next;
+    SET_FREELIST_POINTER_VERSION(next, item_next, FREELIST_VERSION(head) + 1);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) & l->head.data, head.data, next.data);
+#else
+       result = ink_atomic_cas((int64_t *) & l->head.data, head.data, next.data);
+#endif
+
+    if (result) {
+      *addr_next = NULL;
+      return item;
+    }
+    INK_QUEUE_LD(head, l->head);
+  }
+
+  /*
+   * then, go down the list, trying to remove it
+   */
+  prev = TO_PTR(FREELIST_POINTER(head));
+  while (prev) {
+    void **prev_adr_of_next = ADDRESS_OF_NEXT(prev, l->offset);
+    void *prev_prev = prev;
+    prev = TO_PTR(*prev_adr_of_next);
+    if (prev == item) {
+      ink_assert(prev_prev != item_next);
+      *prev_adr_of_next = item_next;
+      *addr_next = NULL;
+      return item;
+    }
+  }
+  return NULL;
+}
diff --git a/lib/ts/ink_queue.h b/lib/ts/ink_queue.h
new file mode 100644
index 00000000..de9a0fbe
--- /dev/null
+++ b/lib/ts/ink_queue.h
@@ -0,0 +1,221 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_queue_h_
+#define _ink_queue_h_
+
+/***********************************************************************
+
+    Generic Queue Implementation (for pointer data types only)
+
+    Uses atomic memory operations to avoid blocking.
+    Intended as a replacement for llqueue.
+
+
+***********************************************************************/
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_apidefs.h"
+
+/*
+  For information on the structure of the x86_64 memory map:
+
+  http://en.wikipedia.org/wiki/X86-64#Linux
+
+  Essentially, in the current 48-bit implementations, the
+  top bit as well as the  lower 47 bits are used, leaving
+  the upper-but one 16 bits free to be used for the version.
+  We will use the top-but-one 15 and sign extend when generating
+  the pointer was required by the standard.
+*/
+
+/*
+#if defined(POSIX_THREAD)
+#include <pthread.h>
+#include <stdlib.h>
+#endif
+*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+  void ink_queue_load_64(void *dst, void *src);
+
+#ifdef __x86_64__
+#define INK_QUEUE_LD64(dst,src) *((uint64_t*)&(dst)) = *((uint64_t*)&(src))
+#else
+#define INK_QUEUE_LD64(dst,src) (ink_queue_load_64((void *)&(dst), (void *)&(src)))
+#endif
+
+#if TS_HAS_128BIT_CAS
+#define INK_QUEUE_LD(dst, src) do { \
+  *(__int128_t*)&(dst) = __sync_val_compare_and_swap((__int128_t*)&(src), 0, 0); \
+} while (0)
+#else
+#define INK_QUEUE_LD(dst,src) INK_QUEUE_LD64(dst,src)
+#endif
+
+/*
+ * Generic Free List Manager
+ */
+  // Warning: head_p is read and written in multiple threads without a
+  // lock, use INK_QUEUE_LD to read safely.
+  typedef union
+  {
+#if (defined(__i386__) || defined(__arm__) || defined(__mips__)) && (SIZEOF_VOIDP == 4)
+    struct
+    {
+      void *pointer;
+      int32_t version;
+    } s;
+    int64_t data;
+#elif TS_HAS_128BIT_CAS
+    struct
+    {
+      void *pointer;
+      int64_t version;
+    } s;
+    __int128_t data;
+#else
+    int64_t data;
+#endif
+  } head_p;
+
+/*
+ * Why is version required? One scenario is described below
+ * Think of a list like this -> A -> C -> D
+ * and you are popping from the list
+ * Between the time you take the ptr(A) and swap the head pointer
+ * the list could start looking like this
+ * -> A -> B -> C -> D
+ * If the version check is not there, the list will look like
+ * -> C -> D after the pop, which will result in the loss of "B"
+ */
+#define ZERO_HEAD_P(_x)
+
+#ifdef DEBUG
+#define FROM_PTR(_x) (void*)(((uintptr_t)_x)+1)
+#define TO_PTR(_x) (void*)(((uintptr_t)_x)-1)
+#else
+#define FROM_PTR(_x) ((void*)(_x))
+#define TO_PTR(_x) ((void*)(_x))
+#endif
+
+#if (defined(__i386__) || defined(__arm__) || defined(__mips__)) && (SIZEOF_VOIDP == 4)
+#define FREELIST_POINTER(_x) (_x).s.pointer
+#define FREELIST_VERSION(_x) (_x).s.version
+#define SET_FREELIST_POINTER_VERSION(_x,_p,_v) \
+(_x).s.pointer = _p; (_x).s.version = _v
+#elif TS_HAS_128BIT_CAS
+#define FREELIST_POINTER(_x) (_x).s.pointer
+#define FREELIST_VERSION(_x) (_x).s.version
+#define SET_FREELIST_POINTER_VERSION(_x,_p,_v) \
+(_x).s.pointer = _p; (_x).s.version = _v
+#elif defined(__x86_64__) || defined(__ia64__)
+#define FREELIST_POINTER(_x) ((void*)(((((intptr_t)(_x).data)<<16)>>16) | \
+ (((~((((intptr_t)(_x).data)<<16>>63)-1))>>48)<<48)))  // sign extend
+#define FREELIST_VERSION(_x) (((intptr_t)(_x).data)>>48)
+#define SET_FREELIST_POINTER_VERSION(_x,_p,_v) \
+  (_x).data = ((((intptr_t)(_p))&0x0000FFFFFFFFFFFFULL) | (((_v)&0xFFFFULL) << 48))
+#else
+#error "unsupported processor"
+#endif
+
+  typedef void *void_p;
+
+#if TS_USE_RECLAIMABLE_FREELIST
+  extern float cfg_reclaim_factor;
+  extern int64_t cfg_max_overage;
+  extern int64_t cfg_enable_reclaim;
+  extern int64_t cfg_debug_filter;
+#else
+  struct _InkFreeList
+  {
+    volatile head_p head;
+    const char *name;
+    uint32_t type_size, chunk_size, used, allocated, alignment;
+    uint32_t allocated_base, used_base;
+  };
+
+  inkcoreapi extern volatile int64_t fastalloc_mem_in_use;
+  inkcoreapi extern volatile int64_t fastalloc_mem_total;
+  inkcoreapi extern volatile int64_t freelist_allocated_mem;
+#endif
+
+  typedef struct _InkFreeList InkFreeList, *PInkFreeList;
+  typedef struct _ink_freelist_list
+  {
+    InkFreeList *fl;
+    struct _ink_freelist_list *next;
+  } ink_freelist_list;
+  extern ink_freelist_list *freelists;
+
+  /*
+   * alignment must be a power of 2
+   */
+  InkFreeList *ink_freelist_create(const char *name, uint32_t type_size,
+                                   uint32_t chunk_size, uint32_t alignment);
+
+  inkcoreapi void ink_freelist_init(InkFreeList **fl, const char *name,
+                                    uint32_t type_size, uint32_t chunk_size,
+                                    uint32_t alignment);
+  inkcoreapi void *ink_freelist_new(InkFreeList * f);
+  inkcoreapi void ink_freelist_free(InkFreeList * f, void *item);
+  void ink_freelists_dump(FILE * f);
+  void ink_freelists_dump_baselinerel(FILE * f);
+  void ink_freelists_snap_baseline();
+
+  typedef struct
+  {
+    volatile head_p head;
+    const char *name;
+    uint32_t offset;
+  } InkAtomicList;
+
+#if !defined(INK_QUEUE_NT)
+#define INK_ATOMICLIST_EMPTY(_x) (!(TO_PTR(FREELIST_POINTER((_x.head)))))
+#else
+  /* ink_queue_nt.c doesn't do the FROM/TO pointer swizzling */
+#define INK_ATOMICLIST_EMPTY(_x) (!(      (FREELIST_POINTER((_x.head)))))
+#endif
+
+  inkcoreapi void ink_atomiclist_init(InkAtomicList * l, const char *name, uint32_t offset_to_next);
+  inkcoreapi void *ink_atomiclist_push(InkAtomicList * l, void *item);
+  void *ink_atomiclist_pop(InkAtomicList * l);
+  inkcoreapi void *ink_atomiclist_popall(InkAtomicList * l);
+/*
+ * WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ * only if only one thread is doing pops it is possible to have a "remove"
+ * which only that thread can use as well.
+ * WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ */
+  void *ink_atomiclist_remove(InkAtomicList * l, void *item);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _ink_queue_h_ */
diff --git a/lib/ts/ink_queue_ext.cc b/lib/ts/ink_queue_ext.cc
new file mode 100644
index 00000000..76ef9024
--- /dev/null
+++ b/lib/ts/ink_queue_ext.cc
@@ -0,0 +1,686 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***********************************************************************
+
+    Reclaimable freelist Implementation
+
+***********************************************************************/
+
+#include "ink_config.h"
+#include <assert.h>
+#include <memory.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include "ink_thread.h"
+#include "ink_atomic.h"
+#include "ink_queue.h"
+#include "ink_memory.h"
+#include "ink_error.h"
+#include "ink_assert.h"
+#include "ink_stack_trace.h"
+#include "ink_queue_ext.h"
+
+#if TS_USE_RECLAIMABLE_FREELIST
+
+#define CEIL(x,y)   (((x) + (y) - 1L) / (y))
+#define ROUND(x,l)  (((x) + ((l) - 1L)) & ~((l) - 1L))
+#define ITEM_MAGIC 0xFF
+
+#define MAX_NUM_FREELIST  1024
+
+/*
+ * Configurable Variables
+ */
+float cfg_reclaim_factor = 0.3;
+int64_t cfg_max_overage = 10;
+int64_t cfg_enable_reclaim = 0;
+/*
+ * Debug filter bit mask:
+ *  bit 0: reclaim in ink_freelist_new
+ *  bit 1: reclaim in ink_freelist_free
+ *  bit 2: fetch memory from thread cache
+ */
+int64_t cfg_debug_filter;
+
+static uint32_t nr_freelist;
+static uint64_t total_mem_in_byte;
+static __thread InkThreadCache *ThreadCaches[MAX_NUM_FREELIST];
+
+#define MAX_CHUNK_BYTE_SIZE (ats_pagesize() << 8)
+
+/*
+ * For debug
+ */
+#define show_info(tag, f, pCache) \
+  __show_info(stdout, __FILE__, __LINE__, tag, f, pCache)
+#define error_info(tag, f, pCache) \
+  __show_info(stderr, __FILE__, __LINE__, tag, f, pCache)
+
+static inline void
+__show_info(FILE *fp, const char *file, int line,
+            const char *tag, InkFreeList *f, InkThreadCache *pCache)
+{
+
+  fprintf(fp, "[%lx:%02u][%s:%05d][%s] %6.2fM t:%-8uf:%-4u m:%-4u avg:%-6.1f"
+          " M:%-4u csbase:%-4u csize:%-4u tsize:%-6u cbsize:%u\n",
+         (long)ink_thread_self(), f->thread_cache_idx, file, line, tag,
+         ((double)total_mem_in_byte/1024/1024),
+         pCache->nr_total,
+         pCache->nr_free,
+         pCache->nr_min,
+         pCache->nr_average,
+         pCache->nr_malloc,
+         f->chunk_size_base,
+         f->chunk_size,
+         f->type_size,
+         f->chunk_byte_size);
+}
+
+static inline void
+memory_alignment_init(InkFreeList *f, uint32_t type_size, uint32_t chunk_size,
+                      uint32_t alignment)
+{
+  uint32_t chunk_byte_size, user_alignment, user_type_size;
+
+  f->chunk_size_base = chunk_size;
+  user_alignment = alignment;
+  user_type_size = type_size;
+  chunk_size = 1;
+
+#ifdef DEBUG
+  /*
+   * enlarge type_size to hold a item_magic
+   */
+  type_size += sizeof(unsigned char);
+#endif
+
+  /*
+   * limit the size of each chunk and resize alignment.
+   * 1) when size of chunk > MAX_CHUNK_BYTE_SIZE:
+   *    alignment = page_size;
+   * 2) when size of chunk <= MAX_CHUNK_BYTE_SIZE:
+   *    alignment = (2^N * page_size),
+   *    alignment should not larger than MAX_CHUNK_BYTE_SIZE
+   */
+  alignment = ats_pagesize();
+  chunk_byte_size = ROUND(type_size + sizeof(InkChunkInfo), ats_pagesize());
+  if (chunk_byte_size <= MAX_CHUNK_BYTE_SIZE) {
+
+    chunk_byte_size = ROUND(type_size * f->chunk_size_base
+                            + sizeof(InkChunkInfo), ats_pagesize());
+
+    if (chunk_byte_size > MAX_CHUNK_BYTE_SIZE) {
+      chunk_size = (MAX_CHUNK_BYTE_SIZE - sizeof(InkChunkInfo)) / type_size;
+      chunk_byte_size = ROUND(type_size * chunk_size + sizeof(InkChunkInfo),
+                              ats_pagesize());
+    } else
+      chunk_size = (chunk_byte_size - sizeof(InkChunkInfo)) / type_size;
+
+    if (chunk_size > 1) {
+      /* make alignment to be (2^N * page_size),
+       * but not larger than MAX_CHUNK_BYTE_SIZE */
+      while (alignment < chunk_byte_size)
+        alignment <<= 1;
+    }
+  }
+
+  if (user_alignment > alignment) {
+    alignment = ats_pagesize();
+    while (alignment < user_alignment)
+      alignment <<= 1;
+  }
+  ink_release_assert(alignment <= MAX_CHUNK_BYTE_SIZE);
+
+  f->alignment = alignment;
+  f->type_size = user_type_size;
+  f->chunk_size = chunk_size;
+  f->chunk_addr_mask = ~((uintptr_t)(alignment - 1));
+  f->chunk_byte_size = chunk_byte_size;
+
+  return;
+}
+
+/*
+ * mmap_align allocates _size_ bytes and returns a pointer to the
+ * allocated memory, which address will be a multiple of _alignment_.
+ *  1)the _size_ must be a multiple of page_size;
+ *  2)the _alignment_ must be a power of page_size;
+ */
+static void*
+mmap_align(size_t size, size_t alignment) {
+  uintptr_t ptr;
+  size_t adjust, extra = 0;
+
+  ink_assert(size % ats_pagesize() == 0);
+
+  /* ask for extra memory if alignment > page_size */
+  if (alignment > ats_pagesize()) {
+    extra = alignment - ats_pagesize();
+  }
+  void* result = mmap(NULL, size + extra,
+                      PROT_READ|PROT_WRITE,
+                      MAP_PRIVATE|MAP_ANON,
+                      -1, 0);
+  if (result == MAP_FAILED) {
+    ink_stack_trace_dump();
+    const char *err_str = "Out of memory, or the process's maximum number of "
+                          "mappings would have been exceeded(if so, you can "
+                          "enlarge 'vm.max_map_count' by sysctl in linux).";
+    ink_fatal(1, "Failed to mmap %zu bytes, %s", size,
+              (errno == ENOMEM) ? err_str : strerror(errno));
+  }
+
+  /* adjust the return memory so it is aligned */
+  adjust = 0;
+  ptr = (uintptr_t)result;
+  if ((ptr & (alignment - 1)) != 0) {
+    adjust = alignment - (ptr & (alignment - 1));
+  }
+
+  /* return the unused memory to the system */
+  if (adjust > 0) {
+    munmap((void*)ptr, adjust);
+  }
+  if (adjust < extra) {
+    munmap((void*)(ptr + adjust + size), extra - adjust);
+  }
+
+  ptr += adjust;
+  ink_assert((ptr & (alignment -1)) == 0);
+  return (void*)ptr;
+}
+
+#ifdef DEBUG
+static inline uint32_t
+get_chunk_item_magic_idx(InkFreeList *f, void *item, InkChunkInfo **ppChunk,
+                          bool do_check = false)
+{
+  uint32_t idx;
+  uintptr_t chunk_addr;
+
+  if (f->chunk_size > 1)
+    chunk_addr = (uintptr_t)item & f->chunk_addr_mask;
+  else
+    chunk_addr = (uintptr_t)item;
+
+  if (*ppChunk == NULL)
+    *ppChunk = (InkChunkInfo *)(chunk_addr + f->type_size * f->chunk_size);
+
+  idx = ((uintptr_t)item - chunk_addr) / f->type_size;
+
+  if (do_check && (idx >= f->chunk_size
+                   || ((uintptr_t)item - chunk_addr) % f->type_size)) {
+    ink_stack_trace_dump();
+    ink_fatal(1, "Invalid address:%p, chunk_addr:%p, type_size:%d, chunk_size:%u, idx:%u",
+              item, (void *)chunk_addr, f->type_size, f->chunk_size, idx);
+  }
+
+  return idx;
+}
+
+static inline void
+set_chunk_item_magic(InkFreeList *f, InkChunkInfo *pChunk, void *item)
+{
+  uint32_t idx;
+
+  idx = get_chunk_item_magic_idx(f, item, &pChunk);
+
+  ink_release_assert(pChunk->item_magic[idx] == 0);
+
+  pChunk->item_magic[idx] = ITEM_MAGIC;
+}
+
+static inline void
+clear_chunk_item_magic(InkFreeList *f, InkChunkInfo *pChunk, void *item)
+{
+  uint32_t idx;
+
+  idx = get_chunk_item_magic_idx(f, item, &pChunk, true);
+
+  ink_release_assert(pChunk->item_magic[idx] == ITEM_MAGIC);
+
+  pChunk->item_magic[idx] = 0;
+}
+#else
+#define set_chunk_item_magic(a, b, c)
+#define clear_chunk_item_magic(a, b, c)
+#endif
+
+static inline InkChunkInfo *
+get_chunk_info_addr(InkFreeList *f, void *item)
+{
+  uintptr_t chunk_addr;
+
+  if (f->chunk_size > 1)
+    chunk_addr = (uintptr_t)item & f->chunk_addr_mask;
+  else
+    chunk_addr = (uintptr_t)item;
+
+  return (InkChunkInfo *)(chunk_addr + f->type_size * f->chunk_size);
+}
+
+static inline InkChunkInfo *
+ink_chunk_create(InkFreeList *f, InkThreadCache *pCache)
+{
+  uint32_t i;
+  uint32_t type_size, chunk_size;
+  void *chunk_addr, *curr, *next;
+  InkChunkInfo *pChunk;
+
+  chunk_addr = mmap_align(f->chunk_byte_size, f->alignment);
+  pChunk = (InkChunkInfo *)((char *)chunk_addr + f->type_size * f->chunk_size);
+
+  type_size = f->type_size;
+  chunk_size = f->chunk_size;
+
+  pChunk->tid = ink_thread_self();
+  pChunk->head = chunk_addr;
+  pChunk->type_size = type_size;
+  pChunk->chunk_size = chunk_size;
+  pChunk->length = f->chunk_byte_size;
+  pChunk->allocated = 0;
+  pChunk->pThreadCache = pCache;
+  pChunk->link = Link<InkChunkInfo>();
+
+#ifdef DEBUG
+  /*
+   * The content will be initialized to zero when
+   * calls mmap() with MAP_ANONYMOUS flag on linux
+   * platform.
+   */
+#if !defined(linux)
+  memset(pChunk->item_magic, 0, chunk_size * sizeof(unsigned char));
+#endif
+#endif
+
+  curr = pChunk->head;
+  pChunk->inner_free_list = curr;
+  for (i = 1; i < chunk_size; i++) {
+    next = (void *)((char *)curr + type_size);
+    *(void **)curr = next;
+    curr = next;
+  }
+  *(void **)curr = NULL;
+
+  ink_atomic_increment(&f->allocated, chunk_size);
+  ink_atomic_increment(&total_mem_in_byte, f->chunk_byte_size);
+
+  pCache->free_chunk_list.push(pChunk);
+  pCache->nr_free_chunks++;
+  return pChunk;
+}
+
+static inline void
+ink_chunk_delete(InkFreeList *f, InkThreadCache *pCache, InkChunkInfo *pChunk)
+{
+  void *chunk_addr = pChunk->head;
+
+  ink_assert(pChunk->allocated == 0);
+
+  pCache->free_chunk_list.remove(pChunk);
+  pCache->nr_free_chunks--;
+
+  if (unlikely(munmap(chunk_addr, f->chunk_byte_size))) {
+    ink_stack_trace_dump();
+    ink_fatal(1, "Failed to munmap %u bytes, %s", f->chunk_byte_size, strerror(errno));
+  }
+
+  ink_atomic_increment((int *)&f->allocated, -f->chunk_size);
+
+  /*
+   * TODO: I had used ink_atomic_increment() here, but it would
+   * lead to incorrect value in linux OS, I don't know why:
+   *  ink_atomic_increment((int64_t *)&total_mem_in_byte, -f->chunk_byte_size);
+   *
+   * So I create a new wrap, ink_atomic_decrement(), in ink_atomic.h,
+   * it works well. But we should create the same wrap for other OS.
+   */
+  ink_atomic_decrement(&total_mem_in_byte, f->chunk_byte_size);
+}
+
+static inline void *
+malloc_whole_chunk(InkFreeList *f, InkThreadCache *pCache, InkChunkInfo *pChunk)
+{
+  uint32_t i;
+  uint32_t type_size, chunk_size;
+  void *next, *item;
+
+  ink_assert(pChunk->allocated == 0);
+
+  type_size = f->type_size;
+  chunk_size = f->chunk_size;
+
+  item = pChunk->head;
+  for (i = 1; i < chunk_size; i++) {
+    next = (void *)((char *)item + i * type_size);
+    ink_atomic_increment(&pCache->nr_free, 1);
+    ink_atomiclist_push(&pCache->outer_free_list, next);
+  }
+
+  pChunk->allocated += chunk_size;
+  pChunk->inner_free_list = NULL;
+  pCache->nr_total += chunk_size;
+
+  return item;
+}
+
+static inline void *
+malloc_from_chunk(InkFreeList * /* f ATS_UNUSED */,
+                  InkThreadCache *pCache, InkChunkInfo *pChunk)
+{
+  void *item;
+
+  if ((item = pChunk->inner_free_list)) {
+    pChunk->inner_free_list  = *(void **)item;
+    pChunk->allocated++;
+    pCache->nr_total++;
+  }
+
+  return item;
+}
+
+static inline void
+free_to_chunk(InkFreeList *f, InkThreadCache *pCache, void *item)
+{
+  InkChunkInfo *pChunk;
+
+  pChunk = get_chunk_info_addr(f, item);
+  pChunk->allocated--;
+  pCache->nr_total--;
+
+  *(void **)item = pChunk->inner_free_list;
+  pChunk->inner_free_list = item;
+
+  if (pChunk->allocated == 0)
+    ink_chunk_delete(f, pCache, pChunk);
+}
+
+static inline void *
+malloc_from_cache(InkFreeList *f, InkThreadCache *pCache, uint32_t nr)
+{
+  void *item;
+  InkChunkInfo *pChunk;
+
+  pChunk = pCache->free_chunk_list.head;
+  while (pChunk) {
+    while ((item = malloc_from_chunk(f, pCache, pChunk))) {
+      if (--nr == 0)
+        return item;
+
+      ink_atomic_increment(&pCache->nr_free, 1);
+      ink_atomiclist_push(&pCache->outer_free_list, item);
+    }
+    pChunk = pChunk->link.next;
+  }
+
+  pChunk = ink_chunk_create(f, pCache);
+  if (nr == f->chunk_size)
+    return malloc_whole_chunk(f, pCache, pChunk);
+
+  while ((item = malloc_from_chunk(f, pCache, pChunk))) {
+    if (--nr == 0)
+      return item;
+
+    ink_atomic_increment(&pCache->nr_free, 1);
+    ink_atomiclist_push(&pCache->outer_free_list, item);
+  }
+
+  ink_assert(0);
+  return NULL;
+}
+
+static inline void
+free_to_cache(InkFreeList *f, InkThreadCache *pCache, void *item, uint32_t nr)
+{
+  uint32_t n = nr;
+
+  if (item)
+    free_to_chunk(f, pCache, item);
+
+  while (n && (item = ink_atomiclist_pop(&pCache->outer_free_list))) {
+    free_to_chunk(f, pCache, item);
+    n--;
+  }
+  ink_atomic_increment((int *)&pCache->nr_free, -(nr - n));
+}
+
+static inline void
+refresh_average_info(InkThreadCache *pCache)
+{
+  uint32_t nr_free;
+  float nr_average;
+
+  nr_free = pCache->nr_free;
+  nr_average = pCache->nr_average;
+
+  if (pCache->status == 1 || nr_free < pCache->nr_min)
+    pCache->nr_min = nr_free;
+
+  pCache->nr_average = (nr_average * (1 - cfg_reclaim_factor)) +
+                       (nr_free * cfg_reclaim_factor);
+}
+
+static inline bool
+need_to_reclaim(InkFreeList *f, InkThreadCache *pCache)
+{
+  if (!cfg_enable_reclaim)
+    return false;
+
+  if(pCache->nr_free >= pCache->nr_average &&
+     pCache->nr_total > f->chunk_size_base) {
+    if (pCache->nr_overage++ >= cfg_max_overage) {
+      pCache->nr_overage = 0;
+      return true;
+    }
+    return false;
+  }
+
+  pCache->nr_overage = 0;
+  return false;
+}
+
+void
+reclaimable_freelist_init(InkFreeList **fl, const char *name,
+                          uint32_t type_size, uint32_t chunk_size,
+                          uint32_t alignment)
+{
+  InkFreeList *f;
+  ink_freelist_list *fll = freelists;
+
+  /* quick test for power of 2 */
+  ink_assert(!(alignment & (alignment - 1)));
+
+  /* NOTE: it's safe to operate on this global list because
+   * ink_freelist_init() is only called from single-threaded
+   * initialization code. */
+  while (fll) {
+    /* Reuse InkFreeList if it has the same type_size. */
+    if (fll->fl->type_size == type_size) {
+      fll->fl->refcnt++;
+      *fl = fll->fl;
+      return;
+    }
+    fll = fll->next;
+  }
+
+  f = (InkFreeList *)ats_memalign(alignment, sizeof(InkFreeList));
+  fll = (ink_freelist_list *)ats_memalign(alignment, sizeof(ink_freelist_list));
+  fll->fl = f;
+  fll->next = freelists;
+  freelists = fll;
+
+  f->name = name;
+  f->used = 0;
+  f->allocated = 0;
+  f->allocated_base = 0;
+  f->used_base = 0;
+
+  memory_alignment_init(f, type_size, chunk_size, alignment);
+
+  f->refcnt = 1;
+  f->pThreadCache = NULL;
+  f->nr_thread_cache = 0;
+  f->thread_cache_idx = nr_freelist++;
+  ink_assert(f->thread_cache_idx < MAX_NUM_FREELIST);
+  ink_mutex_init(&f->lock, "InkFreeList Lock");
+
+  *fl = f;
+}
+
+void *
+reclaimable_freelist_new(InkFreeList *f)
+{
+  void *ptr;
+  uint32_t i, nr;
+  uint32_t old_value;
+  uint32_t num_to_move;
+  InkChunkInfo *pChunk = NULL;
+  InkThreadCache *pCache, *pNextCache;
+
+  ink_atomic_increment(&f->used, 1);
+
+  /* no thread cache, create it */
+  if (unlikely((pCache = ThreadCaches[f->thread_cache_idx]) == NULL)) {
+    pCache = (InkThreadCache *) ats_calloc(1, sizeof(InkThreadCache));
+
+    pCache->f = f;
+    pCache->free_chunk_list = DLL<InkChunkInfo>();
+
+    /* this lock will only be accessed when initializing
+     * thread cache, so it won't damage performance */
+    ink_mutex_acquire(&f->lock);
+    ink_atomiclist_init(&pCache->outer_free_list, f->name, 0);
+
+    nr = CEIL(f->chunk_size_base, f->chunk_size);
+    for (i = 0; i < nr; i++) {
+      pChunk = ink_chunk_create(f, pCache);
+    }
+
+    pCache->nr_malloc = 1;
+
+    ThreadCaches[f->thread_cache_idx] = pCache;
+
+    if (f->pThreadCache) {
+      /* we will loop pCache.next without lock, following
+       * statement's sequence is important for us. */
+      pCache->next = f->pThreadCache;
+      pCache->prev = f->pThreadCache->prev;
+      pCache->next->prev = pCache;
+      pCache->prev->next = pCache;
+    } else {
+      pCache->next = pCache;
+      pCache->prev = pCache;
+    }
+
+    f->pThreadCache = pCache;
+    f->nr_thread_cache++;
+
+    ink_mutex_release(&f->lock);
+
+    ptr = malloc_whole_chunk(f, pCache, pChunk);
+    set_chunk_item_magic(f, pChunk, ptr);
+    return ptr;
+  }
+
+  pCache->status = 0;
+
+  /* priority to fetch memory from outer_free_list */
+  if ((ptr = ink_atomiclist_pop(&pCache->outer_free_list))) {
+    old_value = ink_atomic_increment((int *)&pCache->nr_free, -1);
+    ink_release_assert(old_value > 0);
+    ink_atomic_increment(&pCache->nr_malloc, 1);
+    set_chunk_item_magic(f, NULL, ptr);
+    return ptr;
+  }
+
+  /* try to steal memory from other thread's outer_free_list */
+  pNextCache = pCache->next;
+  while (pNextCache != pCache) {
+    if ((ptr = ink_atomiclist_pop(&pNextCache->outer_free_list))) {
+      old_value = ink_atomic_increment((int *)&pNextCache->nr_free, -1);
+      ink_release_assert(old_value > 0);
+      ink_atomic_increment(&pNextCache->nr_malloc, 1);
+      set_chunk_item_magic(f, NULL, ptr);
+      return ptr;
+    }
+    pNextCache = pNextCache->next;
+  }
+
+  /* try to reclaim memory from all caches in the same thread */
+  for (i = 0; i < nr_freelist; i++) {
+    if ((pNextCache = ThreadCaches[i]) == NULL)
+      continue;
+
+    if (need_to_reclaim(pNextCache->f, pNextCache)) {
+      if (cfg_debug_filter & 0x1)
+        show_info("F", pNextCache->f, pNextCache);
+
+      num_to_move = MIN(pNextCache->nr_average, pNextCache->nr_free);
+
+      free_to_cache(pNextCache->f, pNextCache, NULL, num_to_move);
+
+      if (cfg_debug_filter & 0x1)
+        show_info("-", pNextCache->f, pNextCache);
+
+      refresh_average_info(pNextCache);
+    }
+  }
+
+  /* finally, fetch from thread local cache */
+  if (cfg_debug_filter & 0x2)
+    show_info("M", f, pCache);
+  ptr = malloc_from_cache(f, pCache, f->chunk_size);
+  if (cfg_debug_filter & 0x2)
+    show_info("+", f, pCache);
+
+  refresh_average_info(pCache);
+  ink_atomic_increment(&pCache->nr_malloc, 1);
+  set_chunk_item_magic(f, NULL, ptr);
+  return ptr;
+}
+
+void
+reclaimable_freelist_free(InkFreeList *f, void *item)
+{
+  InkChunkInfo *pChunk;
+  InkThreadCache *pCache;
+
+  if (item == NULL)
+    return;
+
+  pChunk = get_chunk_info_addr(f, item);
+  clear_chunk_item_magic(f, pChunk, item);
+  pCache = pChunk->pThreadCache;
+
+  ink_atomic_increment((int *)&pCache->nr_malloc, -1);
+  if (ink_atomic_cas((int *)&pCache->status, 0, 1))
+    refresh_average_info(pCache);
+
+  ink_atomic_increment(&pCache->nr_free, 1);
+  ink_atomiclist_push(&pCache->outer_free_list, item);
+  ink_atomic_increment(&f->used, -1);
+}
+#endif
diff --git a/lib/ts/ink_queue_ext.h b/lib/ts/ink_queue_ext.h
new file mode 100644
index 00000000..22ee6c4e
--- /dev/null
+++ b/lib/ts/ink_queue_ext.h
@@ -0,0 +1,143 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ink_queue_ext_h_
+#define _ink_queue_ext_h_
+
+/***********************************************************************
+
+    Head file of Reclaimable freelist
+
+***********************************************************************/
+
+#include "List.h"
+#include "ink_queue.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+#if TS_USE_RECLAIMABLE_FREELIST
+  struct _InkThreadCache;
+  struct _InkFreeList;
+
+  typedef struct _InkChunkInfo
+  {
+    pthread_t tid;
+
+    uint32_t type_size;
+    uint32_t chunk_size;
+    uint32_t allocated;
+    uint32_t length;
+
+    /*
+     * inner free list will only be
+     * accessed by creator-thread
+     */
+    void *inner_free_list;
+    void *head;
+
+    struct _InkThreadCache *pThreadCache;
+
+    LINK(_InkChunkInfo, link);
+
+#ifdef DEBUG
+    /*
+     * magic code for each item,
+     * it's used to check double-free issue.
+     */
+    unsigned char item_magic[0];
+#endif
+  } InkChunkInfo;
+
+  typedef struct _InkThreadCache
+  {
+    struct _InkFreeList *f;
+
+    /* outer free list will be accessed by:
+     * - creator-thread, asa producer-thread
+     * - consumer-thread
+     * - neighbor-thread
+     */
+    InkAtomicList outer_free_list;
+
+    /* using for memory reclaim algorithm */
+    float nr_average;
+    uint32_t nr_total;
+    uint32_t nr_free;
+    uint32_t nr_min;
+    uint32_t nr_overage;
+    uint32_t nr_malloc;
+
+    /* represent the status(state) of allocator: Malloc-ing(0) or Free-ing(1),
+     * I use it as an simple state machine - calculating the minimum of free
+     * memory only when the status change from Malloc-ing to Free-ing.
+     */
+    uint32_t status;
+
+    uint32_t nr_free_chunks;
+    DLL<InkChunkInfo> free_chunk_list;
+
+    _InkThreadCache *prev, *next;
+  } InkThreadCache;
+
+  typedef struct _InkFreeList
+  {
+    uint32_t thread_cache_idx;
+
+    uint32_t refcnt;
+    const char *name;
+
+    uint32_t type_size;
+    uint32_t alignment;
+
+    /* number of elements in one chunk */
+    uint32_t chunk_size;
+    /* total byte size of one chuck */
+    uint32_t chunk_byte_size;
+    /* chunk_addr = (uintptr_t)ptr & chunk_addr_mask */
+    uintptr_t chunk_addr_mask;
+
+    uint32_t used;
+    uint32_t allocated;
+    uint32_t allocated_base;
+    uint32_t used_base;
+    uint32_t chunk_size_base;
+
+    uint32_t nr_thread_cache;
+    InkThreadCache *pThreadCache;
+    ink_mutex lock;
+  } InkFreeList, *PInkFreeList;
+
+  /* reclaimable freelist API */
+  void reclaimable_freelist_init(InkFreeList **fl, const char *name,
+                                 uint32_t type_size, uint32_t chunk_size,
+                                 uint32_t alignment);
+  void *reclaimable_freelist_new(InkFreeList *f);
+  void reclaimable_freelist_free(InkFreeList *f, void *item);
+#endif /* END OF TS_USE_RECLAIMABLE_FREELIST */
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _ink_queue_ext_h_ */
diff --git a/lib/ts/ink_queue_utils.cc b/lib/ts/ink_queue_utils.cc
new file mode 100644
index 00000000..f93898b5
--- /dev/null
+++ b/lib/ts/ink_queue_utils.cc
@@ -0,0 +1,80 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include <assert.h>
+
+#include "ink_atomic.h"
+#include "ink_queue.h"
+
+/*
+ * This file was added during the debugging of Bug 50475.
+ * It was found that a race condition was introduced on the sparc architecture
+ * when the ink_queue.c file was moved over to ink_queue.cc. Debugging this
+ * problem resulted in the discovery that gcc was spitting out the
+ * "ldd" (load double) instruction for loading of the 64 bit field "data"
+ * while CC was spitting out two "ld" (load) instructions. The old code
+ * was calling item.data = head.data on sparcs and not putting any restriction
+ * on the order of loading of the fields.
+ *
+ * This is a problem on the sparcs because the "pointer" field was being loaded
+ * before the "version" field. This can result in a very subtle race condition
+ * which subverts the addition of the "version" field.
+ *
+ * Take this scenario
+ * item.ptr = head.ptr
+ * (call to ink_freelist_new )
+ * next.ptr = *(item.ptr) <---- Error
+ * (call to ink_freelist_free )
+ * item.version = head.version
+ * next.version = item.version ++;
+ * cas64(head, item, next)
+
+ * Note, that the cas64 call will be succesful and the next.ptr will probably
+ * be a pointer into the vtable entry. The next alloc will result in a write into
+ * the vtable area.
+ *
+ * The fix for this problem is to read the version before reading the pointer
+ * on 32 bit architectures (currently everything other than alphas). This is
+ * done using the following function. This file only contains one function
+ * to make looking at the assembly code simple.
+ *
+ * If you ever change the compiler or the compiler options to this file, make
+ * sure you look at the assembly generated to see if the version is read first.
+ * Also, make sure that you run the test_freelist microbenchmark for at least
+ * 24 hours on a dual processor box.
+ */
+
+void
+ink_queue_load_64(void *dst, void *src)
+{
+#if (defined(__i386__) || defined(__arm__) || defined(__mips__)) && (SIZEOF_VOIDP == 4)
+  volatile int32_t src_version = (*(head_p *) src).s.version;
+  void *src_pointer = (*(head_p *) src).s.pointer;
+
+  (*(head_p *) dst).s.version = src_version;
+  (*(head_p *) dst).s.pointer = src_pointer;
+#else
+  *(void**)dst = *(void**)src;
+#endif
+}
diff --git a/lib/ts/ink_rand.cc b/lib/ts/ink_rand.cc
new file mode 100644
index 00000000..1736ee7f
--- /dev/null
+++ b/lib/ts/ink_rand.cc
@@ -0,0 +1,109 @@
+/** @file
+
+   A C-program for MT19937-64 (2004/9/29 version).
+   Coded by Takuji Nishimura and Makoto Matsumoto.
+
+   This is a 64-bit version of Mersenne Twister pseudorandom number
+   generator.
+
+   Before using, initialize the state by using init_genrand64(seed)  
+   or init_by_array64(init_key, key_length).
+
+   Copyright (C) 2004, Makoto Matsumoto and Takuji Nishimura,
+   All rights reserved.                          
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+     1. Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.
+
+     2. Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the distribution.
+
+     3. The names of its contributors may not be used to endorse or promote 
+        products derived from this software without specific prior written 
+        permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+   References:
+   T. Nishimura, ``Tables of 64-bit Mersenne Twisters''
+     ACM Transactions on Modeling and 
+     Computer Simulation 10. (2000) 348--357.
+   M. Matsumoto and T. Nishimura,
+     ``Mersenne Twister: a 623-dimensionally equidistributed
+       uniform pseudorandom number generator''
+     ACM Transactions on Modeling and 
+     Computer Simulation 8. (Jan. 1998) 3--30.
+
+   Any feedback is very welcome.
+   http://www.math.hiroshima-u.ac.jp/~m-mat/MT/emt.html
+   email: m-mat @ math.sci.hiroshima-u.ac.jp (remove spaces)
+*/
+
+
+#include "libts.h"
+
+#define NN 312
+#define MM 156
+#define MATRIX_A 0xB5026F5AA96619E9ULL
+#define UM 0xFFFFFFFF80000000ULL /* Most significant 33 bits */
+#define LM 0x7FFFFFFFULL /* Least significant 31 bits */
+
+static uint64_t mag01[2]={0ULL, MATRIX_A};
+
+InkRand::InkRand(uint64_t d) {
+  seed(d);
+}
+
+void InkRand::seed(uint64_t seed) {
+  mt[0] = seed;
+  for (mti=1; mti<NN; mti++) 
+    mt[mti] =  (6364136223846793005ULL * (mt[mti-1] ^ (mt[mti-1] >> 62)) + mti);
+}
+
+uint64_t InkRand::random() {
+  int i;
+  uint64_t x;
+
+  if (mti >= NN) { /* generate NN words at one time */
+    for (i=0;i<NN-MM;i++) {
+      x = (mt[i]&UM)|(mt[i+1]&LM);
+      mt[i] = mt[i+MM] ^ (x>>1) ^ mag01[(int)(x&1ULL)];
+    }
+    for (;i<NN-1;i++) {
+      x = (mt[i]&UM)|(mt[i+1]&LM);
+      mt[i] = mt[i+(MM-NN)] ^ (x>>1) ^ mag01[(int)(x&1ULL)];
+    }
+    x = (mt[NN-1]&UM)|(mt[0]&LM);
+    mt[NN-1] = mt[MM-1] ^ (x>>1) ^ mag01[(int)(x&1ULL)];
+
+    mti = 0;
+  }
+
+  x = mt[mti++];
+
+  x ^= (x >> 29) & 0x5555555555555555ULL;
+  x ^= (x << 17) & 0x71D67FFFEDA60000ULL;
+  x ^= (x << 37) & 0xFFF7EEE000000000ULL;
+  x ^= (x >> 43);
+
+  return x;
+}
+
+double InkRand::drandom() {
+  return (random() >> 11) * (1.0/9007199254740991.0);
+}
diff --git a/lib/ts/ink_rand.h b/lib/ts/ink_rand.h
new file mode 100644
index 00000000..c0a0c272
--- /dev/null
+++ b/lib/ts/ink_rand.h
@@ -0,0 +1,88 @@
+/** @file
+
+  Mersenne Twister declarations adapted for Traffic Server
+
+  @section license License
+
+   A C-program for MT19937-64 (2004/9/29 version).
+   Coded by Takuji Nishimura and Makoto Matsumoto.
+
+   This is a 64-bit version of Mersenne Twister pseudorandom number
+   generator.
+
+   Before using, initialize the state by using init_genrand64(seed)  
+   or init_by_array64(init_key, key_length).
+
+   Copyright (C) 2004, Makoto Matsumoto and Takuji Nishimura,
+   All rights reserved.                          
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+     1. Redistributions of source code must retain the above copyright
+        notice, this list of conditions and the following disclaimer.
+
+     2. Redistributions in binary form must reproduce the above copyright
+        notice, this list of conditions and the following disclaimer in the
+        documentation and/or other materials provided with the distribution.
+
+     3. The names of its contributors may not be used to endorse or promote 
+        products derived from this software without specific prior written 
+        permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+   References:
+   T. Nishimura, ``Tables of 64-bit Mersenne Twisters''
+     ACM Transactions on Modeling and 
+     Computer Simulation 10. (2000) 348--357.
+   M. Matsumoto and T. Nishimura,
+     ``Mersenne Twister: a 623-dimensionally equidistributed
+       uniform pseudorandom number generator''
+     ACM Transactions on Modeling and 
+     Computer Simulation 8. (Jan. 1998) 3--30.
+
+   Any feedback is very welcome.
+   http://www.math.hiroshima-u.ac.jp/~m-mat/MT/emt.html
+   email: m-mat @ math.sci.hiroshima-u.ac.jp (remove spaces)
+*/
+
+#ifndef __INK_RAND_H__
+#define __INK_RAND_H__
+
+
+#include "ink_defs.h"
+#include "ink_apidefs.h"
+
+
+class InkRand
+{
+public:
+  InkRand(uint64_t d);
+
+  void seed(uint64_t d);
+  inkcoreapi uint64_t random();
+  double drandom();
+
+private:
+  uint64_t mt[312];
+  int mti;
+};
+
+inline int ink_rand_r(uint32_t * p) {
+  return (((*p) = (*p) * 1103515245 + 12345) % ((uint32_t) 0x7fffffff + 1));
+}
+
+#endif /* __INK_RAND_H__ */
+
diff --git a/lib/ts/ink_res_init.cc b/lib/ts/ink_res_init.cc
new file mode 100644
index 00000000..dee9acc4
--- /dev/null
+++ b/lib/ts/ink_res_init.cc
@@ -0,0 +1,646 @@
+/*
+ * Copyright (c) 1985, 1989, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+#include <arpa/nameser_compat.h>
+#endif
+#include <stdio.h>
+#include <ctype.h>
+#include <resolv.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ink_string.h"
+#include "ink_resolver.h"
+#include "ink_inet.h"
+#include "Tokenizer.h"
+
+#if !defined(isascii)           /* XXX - could be a function */
+# define isascii(c) (!(c & 0200))
+#endif
+
+HostResPreferenceOrder const HOST_RES_DEFAULT_PREFERENCE_ORDER = {
+  HOST_RES_PREFER_IPV4,
+  HOST_RES_PREFER_IPV6,
+  HOST_RES_PREFER_NONE
+};
+
+HostResPreferenceOrder host_res_default_preference_order;
+
+char const* const HOST_RES_PREFERENCE_STRING[N_HOST_RES_PREFERENCE] = {
+    "only", "client", "ipv4", "ipv6"
+};
+
+char const* const HOST_RES_STYLE_STRING[] = {
+  "invalid", "IPv4", "IPv4 only", "IPv6", "IPv6 only"
+};
+
+/*%
+ * This routine is for closing the socket if a virtual circuit is used and
+ * the program wants to close it.  This provides support for endhostent()
+ * which expects to close the socket.
+ *
+ * This routine is not expected to be user visible.
+ */
+static void
+ink_res_nclose(ink_res_state statp) {
+  if (statp->_vcsock >= 0) {
+    (void) close(statp->_vcsock);
+    statp->_vcsock = -1;
+    statp->_flags &= ~(INK_RES_F_VC | INK_RES_F_CONN);
+  }
+}
+
+static void
+ink_res_setservers(ink_res_state statp, IpEndpoint const* set, int cnt) {
+  /* close open servers */
+  ink_res_nclose(statp);
+
+  /* cause rtt times to be forgotten */
+  statp->nscount = 0;
+
+  /* The goal here seems to be to compress the source list (@a set) by
+     squeezing out invalid addresses. We handle the special case where
+     the destination and sourcea are the same.
+  */
+  int nserv = 0;
+  for ( IpEndpoint const* limit = set + cnt ; nserv < INK_MAXNS && set < limit ; ++set ) {
+    IpEndpoint* dst = &statp->nsaddr_list[nserv];
+
+    if (dst == set) {
+      if (ats_is_ip(&set->sa))
+        ++nserv;
+    } else if (ats_ip_copy(&dst->sa, &set->sa)) {
+      ++nserv;
+    }
+  }
+  statp->nscount = nserv;
+}
+
+int
+ink_res_getservers(ink_res_state statp, sockaddr *set, int cnt) {
+  int zret = 0; // return count.
+  IpEndpoint const* src = statp->nsaddr_list;
+
+  for (int i = 0; i < statp->nscount && i < cnt; ++i, ++src) {
+    if (ats_ip_copy(set, &src->sa)) {
+      ++set;
+      ++zret;
+    }
+  }
+  return zret;
+}
+
+static void
+ink_res_setoptions(ink_res_state statp, const char *options, const char *source ATS_UNUSED)
+{
+  const char *cp = options;
+  int i;
+
+#ifdef DEBUG
+  if (statp->options & INK_RES_DEBUG)
+    printf(";; res_setoptions(\"%s\", \"%s\")...\n", options, source);
+#endif
+  while (*cp) {
+    /* skip leading and inner runs of spaces */
+    while (*cp == ' ' || *cp == '\t')
+      cp++;
+    /* search for and process individual options */
+    if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) {
+      i = atoi(cp + sizeof("ndots:") - 1);
+      if (i <= INK_RES_MAXNDOTS)
+        statp->ndots = i;
+      else
+        statp->ndots = INK_RES_MAXNDOTS;
+#ifdef DEBUG
+      if (statp->options & INK_RES_DEBUG)
+        printf(";;\tndots=%d\n", statp->ndots);
+#endif
+    } else if (!strncmp(cp, "timeout:", sizeof("timeout:") - 1)) {
+      i = atoi(cp + sizeof("timeout:") - 1);
+      if (i <= INK_RES_MAXRETRANS)
+        statp->retrans = i;
+      else
+        statp->retrans = INK_RES_MAXRETRANS;
+#ifdef DEBUG
+      if (statp->options & INK_RES_DEBUG)
+        printf(";;\ttimeout=%d\n", statp->retrans);
+#endif
+#ifdef	SOLARIS2
+    } else if (!strncmp(cp, "retrans:", sizeof("retrans:") - 1)) {
+      /*
+       * For backward compatibility, 'retrans' is
+       * supported as an alias for 'timeout', though
+       * without an imposed maximum.
+       */
+      statp->retrans = atoi(cp + sizeof("retrans:") - 1);
+    } else if (!strncmp(cp, "retry:", sizeof("retry:") - 1)){
+      /*
+       * For backward compatibility, 'retry' is
+       * supported as an alias for 'attempts', though
+       * without an imposed maximum.
+       */
+      statp->retry = atoi(cp + sizeof("retry:") - 1);
+#endif	/* SOLARIS2 */
+    } else if (!strncmp(cp, "attempts:", sizeof("attempts:") - 1)){
+      i = atoi(cp + sizeof("attempts:") - 1);
+      if (i <= INK_RES_MAXRETRY)
+        statp->retry = i;
+      else
+        statp->retry = INK_RES_MAXRETRY;
+#ifdef DEBUG
+      if (statp->options & INK_RES_DEBUG)
+        printf(";;\tattempts=%d\n", statp->retry);
+#endif
+    } else if (!strncmp(cp, "debug", sizeof("debug") - 1)) {
+#ifdef DEBUG
+      if (!(statp->options & INK_RES_DEBUG)) {
+        printf(";; res_setoptions(\"%s\", \"%s\")..\n", options, source);
+        statp->options |= INK_RES_DEBUG;
+      }
+      printf(";;\tdebug\n");
+#endif
+    } else if (!strncmp(cp, "no_tld_query", sizeof("no_tld_query") - 1) ||
+               !strncmp(cp, "no-tld-query", sizeof("no-tld-query") - 1)) {
+      statp->options |= INK_RES_NOTLDQUERY;
+    } else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) {
+      statp->options |= INK_RES_USE_INET6;
+    } else if (!strncmp(cp, "rotate", sizeof("rotate") - 1)) {
+      statp->options |= INK_RES_ROTATE;
+    } else if (!strncmp(cp, "no-check-names", sizeof("no-check-names") - 1)) {
+      statp->options |= INK_RES_NOCHECKNAME;
+    }
+#ifdef INK_RES_USE_EDNS0
+    else if (!strncmp(cp, "edns0", sizeof("edns0") - 1)) {
+      statp->options |= INK_RES_USE_EDNS0;
+    }
+#endif
+    else if (!strncmp(cp, "dname", sizeof("dname") - 1)) {
+      statp->options |= INK_RES_USE_DNAME;
+    }
+    else {
+      /* XXX - print a warning here? */
+    }
+    /* skip to next run of spaces */
+    while (*cp && *cp != ' ' && *cp != '\t')
+      cp++;
+  }
+}
+
+static u_int
+ink_res_randomid(void) {
+  struct timeval now;
+
+  gettimeofday(&now, NULL);
+  return (0xffff & (now.tv_sec ^ now.tv_usec ^ getpid()));
+}
+
+/*%
+ * Set up default settings.  If the configuration file exist, the values
+ * there will have precedence.  Otherwise, the server address is set to
+ * INADDR_ANY and the default domain name comes from the gethostname().
+ *
+ * An interrim version of this code (BIND 4.9, pre-4.4BSD) used 127.0.0.1
+ * rather than INADDR_ANY ("0.0.0.0") as the default name server address
+ * since it was noted that INADDR_ANY actually meant ``the first interface
+ * you "ifconfig"'d at boot time'' and if this was a SLIP or PPP interface,
+ * it had to be "up" in order for you to reach your own name server.  It
+ * was later decided that since the recommended practice is to always
+ * install local static routes through 127.0.0.1 for all your network
+ * interfaces, that we could solve this problem without a code change.
+ *
+ * The configuration file should always be used, since it is the only way
+ * to specify a default domain.  If you are running a server on your local
+ * machine, you should say "nameserver 0.0.0.0" or "nameserver 127.0.0.1"
+ * in the configuration file.
+ *
+ * Return 0 if completes successfully, -1 on error
+ *
+ * @internal This function has to be reachable by res_data.c but not publically.
+ */
+int
+ink_res_init(
+  ink_res_state statp, ///< State object to update.
+  IpEndpoint const* pHostList, ///< Additional servers.
+  size_t pHostListSize, ///< # of entries in @a pHostList.
+  const char *pDefDomain, ///< Default domain (may be NULL).
+  const char *pSearchList, ///< Unknown
+  const char *pResolvConf ///< Path to configuration file.
+) {
+  FILE *fp;
+  char *cp, **pp;
+  int n;
+  char buf[BUFSIZ];
+  size_t nserv = 0;
+  int haveenv = 0;
+  int havesearch = 0;
+  int dots;
+  size_t maxns = INK_MAXNS;
+
+  // INK_RES_SET_H_ERRNO(statp, 0);
+  statp->res_h_errno = 0;
+
+  statp->retrans = INK_RES_TIMEOUT;
+  statp->retry = INK_RES_DFLRETRY;
+  statp->options = INK_RES_DEFAULT;
+  statp->id = ink_res_randomid();
+
+  statp->nscount = 0;
+  statp->ndots = 1;
+  statp->pfcode = 0;
+  statp->_vcsock = -1;
+  statp->_flags = 0;
+  statp->qhook = NULL;
+  statp->rhook = NULL;
+
+#ifdef	SOLARIS2
+  /*
+   * The old libresolv derived the defaultdomain from NIS/NIS+.
+   * We want to keep this behaviour
+   */
+  {
+    char buf[sizeof(statp->defdname)], *cp;
+    int ret;
+
+    if ((ret = sysinfo(SI_SRPC_DOMAIN, buf, sizeof(buf))) > 0 &&
+        (unsigned int)ret <= sizeof(buf)) {
+      if (buf[0] == '+')
+        buf[0] = '.';
+      cp = strchr(buf, '.');
+      cp = (cp == NULL) ? buf : (cp + 1);
+      ink_strlcpy(statp->defdname, cp, sizeof(statp->defdname));
+    }
+  }
+#endif	/* SOLARIS2 */
+
+	/* Allow user to override the local domain definition */
+  if ((cp = getenv("LOCALDOMAIN")) != NULL) {
+    (void)ink_strlcpy(statp->defdname, cp, sizeof(statp->defdname));
+    haveenv++;
+
+    /*
+     * Set search list to be blank-separated strings
+     * from rest of env value.  Permits users of LOCALDOMAIN
+     * to still have a search list, and anyone to set the
+     * one that they want to use as an individual (even more
+     * important now that the rfc1535 stuff restricts searches)
+     */
+    cp = statp->defdname;
+    pp = statp->dnsrch;
+    *pp++ = cp;
+    for (n = 0; *cp && pp < statp->dnsrch + INK_MAXDNSRCH; cp++) {
+      if (*cp == '\n')	/*%< silly backwards compat */
+        break;
+      else if (*cp == ' ' || *cp == '\t') {
+        *cp = 0;
+        n = 1;
+      } else if (n) {
+        *pp++ = cp;
+        n = 0;
+        havesearch = 1;
+      }
+    }
+    /* null terminate last domain if there are excess */
+    while (*cp != '\0' && *cp != ' ' && *cp != '\t' && *cp != '\n')
+      cp++;
+    *cp = '\0';
+    *pp++ = 0;
+  }
+
+  /* ---------------------------------------------
+     Default domain name and doamin Search list:
+
+     if we are supplied a default domain name,
+     and/or search list we will use it. Otherwise,
+     we will skip to using  what is present in the
+     conf file
+     ---------------------------------------------- */
+
+  if (pDefDomain && '\0' != *pDefDomain && '\n' != *pDefDomain) {
+    ink_strlcpy(statp->defdname, pDefDomain, sizeof(statp->defdname));
+    if ((cp = strpbrk(statp->defdname, " \t\n")) != NULL)
+      *cp = '\0';
+  }
+  if (pSearchList && '\0' != *pSearchList && '\n' != *pSearchList) {
+    ink_strlcpy(statp->defdname, pSearchList, sizeof(statp->defdname));
+    if ((cp = strchr(statp->defdname, '\n')) != NULL)
+      *cp = '\0';
+    /*
+     * Set search list to be blank-separated strings
+     * on rest of line.
+     */
+    cp = statp->defdname;
+    pp = statp->dnsrch;
+    *pp++ = cp;
+    for (n = 0; *cp && pp < statp->dnsrch + INK_MAXDNSRCH; cp++) {
+      if (*cp == ' ' || *cp == '\t') {
+        *cp = 0;
+        n = 1;
+      } else if (n) {
+        *pp++ = cp;
+        n = 0;
+      }
+    }
+    /* null terminate last domain if there are excess */
+    while (*cp != '\0' && *cp != ' ' && *cp != '\t')
+      cp++;
+    *cp = '\0';
+    *pp++ = 0;
+    havesearch = 1;
+  }
+
+  /* -------------------------------------------
+     we must be provided with atleast a named!
+     ------------------------------------------- */
+  if (pHostList) {
+    if (pHostListSize > INK_MAXNS) pHostListSize = INK_MAXNS;
+    for (
+        ; nserv < pHostListSize
+          && ats_is_ip(&pHostList[nserv].sa) 
+        ; ++nserv
+    ) {
+      ats_ip_copy(&statp->nsaddr_list[nserv].sa, &pHostList[nserv].sa);
+    }
+  }
+
+#define	MATCH(line, name)                       \
+  (!strncmp(line, name, sizeof(name) - 1) &&    \
+   (line[sizeof(name) - 1] == ' ' ||            \
+    line[sizeof(name) - 1] == '\t'))
+
+  if ((fp = fopen(pResolvConf, "r")) != NULL) {
+    /* read the config file */
+    while (fgets(buf, sizeof(buf), fp) != NULL) {
+      /* skip comments */
+      if (*buf == ';' || *buf == '#')
+        continue;
+      /* read default domain name */
+      if (MATCH(buf, "domain")) {
+        if (haveenv)	/*%< skip if have from environ */
+          continue;
+        cp = buf + sizeof("domain") - 1;
+        while (*cp == ' ' || *cp == '\t')
+          cp++;
+        if ((*cp == '\0') || (*cp == '\n'))
+          continue;
+        ink_strlcpy(statp->defdname, cp, sizeof(statp->defdname));
+        if ((cp = strpbrk(statp->defdname, " \t\n")) != NULL)
+          *cp = '\0';
+        havesearch = 0;
+        continue;
+      }
+      /* set search list */
+      if (MATCH(buf, "search")) {
+        if (haveenv)	/*%< skip if have from environ */
+          continue;
+        cp = buf + sizeof("search") - 1;
+        while (*cp == ' ' || *cp == '\t')
+          cp++;
+        if ((*cp == '\0') || (*cp == '\n'))
+          continue;
+        ink_strlcpy(statp->defdname, cp, sizeof(statp->defdname));
+        if ((cp = strchr(statp->defdname, '\n')) != NULL)
+          *cp = '\0';
+        /*
+         * Set search list to be blank-separated strings
+         * on rest of line.
+         */
+        cp = statp->defdname;
+        pp = statp->dnsrch;
+        *pp++ = cp;
+        for (n = 0; *cp && pp < statp->dnsrch + INK_MAXDNSRCH; cp++) {
+          if (*cp == ' ' || *cp == '\t') {
+            *cp = 0;
+            n = 1;
+          } else if (n) {
+            *pp++ = cp;
+            n = 0;
+          }
+        }
+        /* null terminate last domain if there are excess */
+        while (*cp != '\0' && *cp != ' ' && *cp != '\t')
+          cp++;
+        *cp = '\0';
+        *pp++ = 0;
+        havesearch = 1;
+        continue;
+      }
+      /* read nameservers to query */
+      if (MATCH(buf, "nameserver") && nserv < maxns) {
+        struct addrinfo hints, *ai;
+        char sbuf[NI_MAXSERV];
+
+        cp = buf + sizeof("nameserver") - 1;
+        while (*cp == ' ' || *cp == '\t')
+          cp++;
+        cp[strcspn(cp, ";# \t\n")] = '\0';
+        if ((*cp != '\0') && (*cp != '\n')) {
+          memset(&hints, 0, sizeof(hints));
+          hints.ai_family = PF_UNSPEC;
+          hints.ai_socktype = SOCK_DGRAM;	/*dummy*/
+          hints.ai_flags = AI_NUMERICHOST;
+          sprintf(sbuf, "%d", NAMESERVER_PORT);
+          if (getaddrinfo(cp, sbuf, &hints, &ai) == 0) {
+            if (ats_ip_copy(
+                &statp->nsaddr_list[nserv].sa,
+                ai->ai_addr
+            ))
+              ++nserv;
+            freeaddrinfo(ai);
+          }
+        }
+        continue;
+      }
+      if (MATCH(buf, "options")) {
+        ink_res_setoptions(statp, buf + sizeof("options") - 1, "conf");
+        continue;
+      }
+    }
+    (void) fclose(fp);
+  }
+
+  if (nserv > 0)
+    statp->nscount = nserv;
+
+  if (statp->defdname[0] == 0 && gethostname(buf, sizeof(statp->defdname) - 1) == 0 && (cp = strchr(buf, '.')) != NULL)
+    ink_strlcpy(statp->defdname, cp + 1, sizeof(statp->defdname));
+
+  /* find components of local domain that might be searched */
+  if (havesearch == 0) {
+    pp = statp->dnsrch;
+    *pp++ = statp->defdname;
+    *pp = NULL;
+
+    dots = 0;
+    for (cp = statp->defdname; *cp; cp++)
+      dots += (*cp == '.');
+
+    cp = statp->defdname;
+    while (pp < statp->dnsrch + INK_MAXDFLSRCH) {
+      if (dots < INK_LOCALDOMAINPARTS)
+        break;
+      cp = strchr(cp, '.') + 1;    /*%< we know there is one */
+      *pp++ = cp;
+      dots--;
+    }
+    *pp = NULL;
+#ifdef DEBUG
+    if (statp->options & INK_RES_DEBUG) {
+      printf(";; res_init()... default dnsrch list:\n");
+      for (pp = statp->dnsrch; *pp; pp++)
+        printf(";;\t%s\n", *pp);
+      printf(";;\t..END..\n");
+    }
+#endif
+  }
+
+  /* export all ns servers to DNSprocessor. */
+  ink_res_setservers(statp, &statp->nsaddr_list[0], statp->nscount);
+
+  if ((cp = getenv("RES_OPTIONS")) != NULL)
+    ink_res_setoptions(statp, cp, "env");
+  statp->options |= INK_RES_INIT;
+  return (statp->res_h_errno);
+}
+
+void
+parse_host_res_preference(char const* value, HostResPreferenceOrder order) {
+  Tokenizer tokens(";/|");
+  // preference from the config string.
+  int np = 0; // index in to @a m_host_res_preference
+  bool found[N_HOST_RES_PREFERENCE];  // redundancy check array
+  int n; // # of tokens
+  int i; // index
+
+  n = tokens.Initialize(value);
+
+  for ( i = 0 ; i < N_HOST_RES_PREFERENCE ; ++i )
+    found[i] = false;
+
+  for ( i = 0 ; i < n && np < N_HOST_RES_PREFERENCE_ORDER ; ++i ) {
+    char const* elt = tokens[i];
+    // special case none/only because that terminates the sequence.
+    if (0 == strcasecmp(elt, HOST_RES_PREFERENCE_STRING[HOST_RES_PREFER_NONE])) {
+      found[HOST_RES_PREFER_NONE] = true;
+      order[np] = HOST_RES_PREFER_NONE;
+      break;
+    } else {
+      // scan the other types
+      HostResPreference ep = HOST_RES_PREFER_NONE;
+      for ( int ip = HOST_RES_PREFER_NONE + 1 ; ip < N_HOST_RES_PREFERENCE ; ++ip ) {
+        if (0 == strcasecmp(elt, HOST_RES_PREFERENCE_STRING[ip])) {
+          ep = static_cast<HostResPreference>(ip);
+          break;
+        }
+      }
+      if (HOST_RES_PREFER_NONE != ep && !found[ep]) { // ignore duplicates
+        found[ep] = true;
+        order[np++] = ep;
+      }
+    }
+  }
+
+  if (!found[HOST_RES_PREFER_NONE]) {
+    // If 'only' wasn't explicit, fill in the rest by default.
+    if (!found[HOST_RES_PREFER_IPV4])
+      order[np++] = HOST_RES_PREFER_IPV4;
+    if (!found[HOST_RES_PREFER_IPV6])
+      order[np++] = HOST_RES_PREFER_IPV6;
+    if (np < N_HOST_RES_PREFERENCE)
+      order[np++] = HOST_RES_PREFER_NONE;
+  }
+}      
+
+int
+ts_host_res_order_to_string(HostResPreferenceOrder const& order, char* out, int size)
+{
+  int zret = 0;
+  bool first = true;
+  for ( int i = 0 ; i < N_HOST_RES_PREFERENCE_ORDER ; ++i ) {
+    /* Note we use a semi-colon here because this must be compatible
+     * with the -httpport command line option which uses comma to
+     * separate port descriptors so we cannot use that to separate
+     * resolution key words.
+     */
+    zret += snprintf(out+zret, size-zret, "%s%s", !first ? ";" : "", HOST_RES_PREFERENCE_STRING[order[i]]);
+    if (HOST_RES_PREFER_NONE == order[i])
+      break;
+    first = false;
+  }
+  return zret;
+}
diff --git a/lib/ts/ink_res_mkquery.cc b/lib/ts/ink_res_mkquery.cc
new file mode 100644
index 00000000..3e01a941
--- /dev/null
+++ b/lib/ts/ink_res_mkquery.cc
@@ -0,0 +1,537 @@
+/*
+ * Copyright (c) 1985, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Portions Copyright (c) 1993 by Digital Equipment Corporation.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies, and that
+ * the name of Digital Equipment Corporation not be used in advertising or
+ * publicity pertaining to distribution of the document or software without
+ * specific, written prior permission.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+ * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+
+#include "ink_config.h"
+#include "ink_defs.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+#include <arpa/nameser_compat.h>
+#endif
+#include <netdb.h>
+#include <resolv.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "ink_error.h"
+#include "ink_resolver.h"
+
+#define SPRINTF(x) (sprintf x)
+
+/*%
+ * Form all types of queries.
+ * Returns the size of the result or -1.
+ */
+int
+ink_res_mkquery(ink_res_state statp,
+	     int op,			/*!< opcode of query  */
+	     const char *dname,		/*!< domain name  */
+	     int _class, int type,	/*!< _class and type of query  */
+	     const u_char *data,	/*!< resource record data  */
+	     int datalen,		/*!< length of data  */
+             const u_char */* newrr_in  ATS_UNUSED */,	/*!< new rr for modify or append  */
+	     u_char *buf,		/*!< buffer to put query  */
+	     int buflen)		/*!< size of buffer  */
+{
+	HEADER *hp;
+	u_char *cp, *ep;
+	int n;
+	u_char *dnptrs[20], **dpp, **lastdnptr;
+
+	/*
+	 * Initialize header fields.
+	 */
+	if ((buf == NULL) || (buflen < HFIXEDSZ))
+		return (-1);
+	memset(buf, 0, HFIXEDSZ);
+	hp = (HEADER *) buf;
+	hp->id = htons(++statp->id);
+	hp->opcode = op;
+	hp->rd = (statp->options & INK_RES_RECURSE) != 0U;
+	hp->rcode = NOERROR;
+	cp = buf + HFIXEDSZ;
+	ep = buf + buflen;
+	dpp = dnptrs;
+	*dpp++ = buf;
+	*dpp++ = NULL;
+	lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0];
+	/*
+	 * perform opcode specific processing
+	 */
+	switch (op) {
+	case QUERY:	/*FALLTHROUGH*/
+	case NS_NOTIFY_OP:
+		if (ep - cp < QFIXEDSZ)
+			return (-1);
+		if ((n = dn_comp(dname, cp, ep - cp - QFIXEDSZ, dnptrs,
+		    lastdnptr)) < 0)
+			return (-1);
+		cp += n;
+		NS_PUT16(type, cp);
+		NS_PUT16(_class, cp);
+		hp->qdcount = htons(1);
+		if (op == QUERY || data == NULL)
+			break;
+		/*
+		 * Make an additional record for completion domain.
+		 */
+		if ((ep - cp) < RRFIXEDSZ)
+			return (-1);
+		n = dn_comp((const char *)data, cp, ep - cp - RRFIXEDSZ,
+			    dnptrs, lastdnptr);
+		if (n < 0)
+			return (-1);
+		cp += n;
+		NS_PUT16(T_NULL, cp);
+		NS_PUT16(_class, cp);
+		NS_PUT32(0, cp);
+		NS_PUT16(0, cp);
+		hp->arcount = htons(1);
+		break;
+
+	case IQUERY:
+		/*
+		 * Initialize answer section
+		 */
+		if (ep - cp < 1 + RRFIXEDSZ + datalen)
+			return (-1);
+		*cp++ = '\0';	/*%< no domain name */
+		NS_PUT16(type, cp);
+		NS_PUT16(_class, cp);
+		NS_PUT32(0, cp);
+		NS_PUT16(datalen, cp);
+		if (datalen) {
+			memcpy(cp, data, datalen);
+			cp += datalen;
+		}
+		hp->ancount = htons(1);
+		break;
+
+	default:
+		return (-1);
+	}
+	return (cp - buf);
+}
+
+/* Public. */
+
+/*%
+ *	Thinking in noninternationalized USASCII (per the DNS spec),
+ *	is this character visible and not a space when printed ?
+ *
+ * return:
+ *\li	boolean.
+ */
+static int
+printable(int ch) {
+	return (ch > 0x20 && ch < 0x7f);
+}
+
+static const char	digits[] = "0123456789";
+
+static int
+labellen(const u_char *lp)
+{
+	int bitlen;
+	u_char l = *lp;
+
+	if ((l & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
+		/* should be avoided by the caller */
+		return(-1);
+	}
+
+	if ((l & NS_CMPRSFLGS) == INK_NS_TYPE_ELT) {
+		if (l == INK_DNS_LABELTYPE_BITSTRING) {
+			if ((bitlen = *(lp + 1)) == 0)
+				bitlen = 256;
+			return((bitlen + 7 ) / 8 + 1);
+		}
+		return(-1);	/*%< unknwon ELT */
+	}
+	return(l);
+}
+
+static int
+decode_bitstring(const unsigned char **cpp, char *dn, const char *eom)
+{
+	const unsigned char *cp = *cpp;
+	char *beg = dn, tc;
+	int b, blen, plen, i;
+
+	if ((blen = (*cp & 0xff)) == 0)
+		blen = 256;
+	plen = (blen + 3) / 4;
+	plen += sizeof("\\[x/]") + (blen > 99 ? 3 : (blen > 9) ? 2 : 1);
+	if (dn + plen >= eom)
+		return(-1);
+
+	cp++;
+	i = SPRINTF((dn, "\\[x"));
+	if (i < 0)
+		return (-1);
+	dn += i;
+	for (b = blen; b > 7; b -= 8, cp++) {
+		i = SPRINTF((dn, "%02x", *cp & 0xff));
+		if (i < 0)
+			return (-1);
+		dn += i;
+	}
+	if (b > 4) {
+		tc = *cp++;
+		i = SPRINTF((dn, "%02x", tc & (0xff << (8 - b))));
+		if (i < 0)
+			return (-1);
+		dn += i;
+	} else if (b > 0) {
+		tc = *cp++;
+		i = SPRINTF((dn, "%1x",
+			       ((tc >> 4) & 0x0f) & (0x0f << (4 - b))));
+		if (i < 0)
+			return (-1);
+		dn += i;
+	}
+	i = SPRINTF((dn, "/%d]", blen));
+	if (i < 0)
+		return (-1);
+	dn += i;
+
+	*cpp = cp;
+	return(dn - beg);
+}
+
+/*%
+ *	Thinking in noninternationalized USASCII (per the DNS spec),
+ *	is this characted special ("in need of quoting") ?
+ *
+ * return:
+ *\li	boolean.
+ */
+static int
+special(int ch) {
+	switch (ch) {
+	case 0x22: /*%< '"' */
+	case 0x2E: /*%< '.' */
+	case 0x3B: /*%< ';' */
+	case 0x5C: /*%< '\\' */
+	case 0x28: /*%< '(' */
+	case 0x29: /*%< ')' */
+	/* Special modifiers in zone files. */
+	case 0x40: /*%< '@' */
+	case 0x24: /*%< '$' */
+		return (1);
+	default:
+		return (0);
+	}
+}
+
+/*%
+ *	Convert an encoded domain name to printable ascii as per RFC1035.
+
+ * return:
+ *\li	Number of bytes written to buffer, or -1 (with errno set)
+ *
+ * notes:
+ *\li	The root is returned as "."
+ *\li	All other domains are returned in non absolute form
+ */
+int
+ink_ns_name_ntop(const u_char *src, char *dst, size_t dstsiz)
+{
+	const u_char *cp;
+	char *dn, *eom;
+	u_char c;
+	u_int n;
+	int l;
+
+	cp = src;
+	dn = dst;
+	eom = dst + dstsiz;
+
+	while ((n = *cp++) != 0) {
+		if ((n & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
+			/* Some kind of compression pointer. */
+			errno = EMSGSIZE;
+			return (-1);
+		}
+		if (dn != dst) {
+			if (dn >= eom) {
+				errno = EMSGSIZE;
+				return (-1);
+			}
+			*dn++ = '.';
+		}
+		if ((l = labellen(cp - 1)) < 0) {
+			errno = EMSGSIZE; /*%< XXX */
+			return(-1);
+		}
+		if (dn + l >= eom) {
+			errno = EMSGSIZE;
+			return (-1);
+		}
+		if ((n & NS_CMPRSFLGS) == INK_NS_TYPE_ELT) {
+			int m;
+
+			if (n != INK_DNS_LABELTYPE_BITSTRING) {
+				/* XXX: labellen should reject this case */
+				errno = EINVAL;
+				return(-1);
+			}
+			if ((m = decode_bitstring(&cp, dn, eom)) < 0)
+			{
+				errno = EMSGSIZE;
+				return(-1);
+			}
+			dn += m;
+			continue;
+		}
+		for ((void)NULL; l > 0; l--) {
+			c = *cp++;
+			if (special(c)) {
+				if (dn + 1 >= eom) {
+					errno = EMSGSIZE;
+					return (-1);
+				}
+				*dn++ = '\\';
+				*dn++ = (char)c;
+			} else if (!printable(c)) {
+				if (dn + 3 >= eom) {
+					errno = EMSGSIZE;
+					return (-1);
+				}
+				*dn++ = '\\';
+				*dn++ = digits[c / 100];
+				*dn++ = digits[(c % 100) / 10];
+				*dn++ = digits[c % 10];
+			} else {
+				if (dn >= eom) {
+					errno = EMSGSIZE;
+					return (-1);
+				}
+				*dn++ = (char)c;
+			}
+		}
+	}
+	if (dn == dst) {
+		if (dn >= eom) {
+			errno = EMSGSIZE;
+			return (-1);
+		}
+		*dn++ = '.';
+	}
+	if (dn >= eom) {
+		errno = EMSGSIZE;
+		return (-1);
+	}
+	*dn++ = '\0';
+	return (dn - dst);
+}
+
+/*%
+ *	Convert an encoded domain name to printable ascii as per RFC1035.
+
+ * return:
+ *\li	Number of bytes written to buffer, or -1 (with errno set)
+ *
+ * notes:
+ *\li	The root is returned as "."
+ *\li	All other domains are returned in non absolute form
+ */
+#if defined(linux)
+int
+ns_name_ntop(const u_char *src, char *dst, size_t dstsiz) __THROW
+#else
+int
+ns_name_ntop(const u_char *src, char *dst, size_t dstsiz)
+#endif
+{
+	const u_char *cp;
+	char *dn, *eom;
+	u_char c;
+	u_int n;
+	int l;
+
+	cp = src;
+	dn = dst;
+	eom = dst + dstsiz;
+
+	while ((n = *cp++) != 0) {
+		if ((n & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
+			/* Some kind of compression pointer. */
+			errno = EMSGSIZE;
+			return (-1);
+		}
+		if (dn != dst) {
+			if (dn >= eom) {
+				errno = EMSGSIZE;
+				return (-1);
+			}
+			*dn++ = '.';
+		}
+		if ((l = labellen(cp - 1)) < 0) {
+			errno = EMSGSIZE; /*%< XXX */
+			return(-1);
+		}
+		if (dn + l >= eom) {
+			errno = EMSGSIZE;
+			return (-1);
+		}
+		if ((n & NS_CMPRSFLGS) == INK_NS_TYPE_ELT) {
+			int m;
+
+			if (n != INK_DNS_LABELTYPE_BITSTRING) {
+				/* XXX: labellen should reject this case */
+				errno = EINVAL;
+				return(-1);
+			}
+			if ((m = decode_bitstring(&cp, dn, eom)) < 0)
+			{
+				errno = EMSGSIZE;
+				return(-1);
+			}
+			dn += m;
+			continue;
+		}
+		for ((void)NULL; l > 0; l--) {
+			c = *cp++;
+			if (special(c)) {
+				if (dn + 1 >= eom) {
+					errno = EMSGSIZE;
+					return (-1);
+				}
+				*dn++ = '\\';
+				*dn++ = (char)c;
+			} else if (!printable(c)) {
+				if (dn + 3 >= eom) {
+					errno = EMSGSIZE;
+					return (-1);
+				}
+				*dn++ = '\\';
+				*dn++ = digits[c / 100];
+				*dn++ = digits[(c % 100) / 10];
+				*dn++ = digits[c % 10];
+			} else {
+				if (dn >= eom) {
+					errno = EMSGSIZE;
+					return (-1);
+				}
+				*dn++ = (char)c;
+			}
+		}
+	}
+	if (dn == dst) {
+		if (dn >= eom) {
+			errno = EMSGSIZE;
+			return (-1);
+		}
+		*dn++ = '.';
+	}
+	if (dn >= eom) {
+		errno = EMSGSIZE;
+		return (-1);
+	}
+	*dn++ = '\0';
+	return (dn - dst);
+}
+
+HostResStyle
+ats_host_res_from(int family, HostResPreferenceOrder order)
+{
+  bool v4 = false, v6 = false;
+  HostResPreference client = AF_INET6 == family ? HOST_RES_PREFER_IPV6 : HOST_RES_PREFER_IPV4;
+
+  for ( int i = 0 ; i < N_HOST_RES_PREFERENCE_ORDER ; ++i ) {
+    HostResPreference p = order[i];
+    if (HOST_RES_PREFER_CLIENT == p) p = client; // CLIENT -> actual value
+    if (HOST_RES_PREFER_IPV4 == p) {
+      if (v6) return HOST_RES_IPV6;
+      else v4 = true;
+    } else if (HOST_RES_PREFER_IPV6 == p) {
+      if (v4) return HOST_RES_IPV4;
+      else v6 = true;
+    } else {
+      break;
+    }
+  }
+  if (v4) return HOST_RES_IPV4_ONLY;
+  else if (v6) return HOST_RES_IPV6_ONLY;
+  return HOST_RES_NONE;
+}
+
+HostResStyle
+ats_host_res_match(sockaddr const* addr)
+{
+  HostResStyle zret = HOST_RES_NONE;
+  if (ats_is_ip6(addr))
+    zret = HOST_RES_IPV6_ONLY;
+  else if (ats_is_ip4(addr))
+    zret = HOST_RES_IPV4_ONLY;
+  return zret;
+}
diff --git a/lib/ts/ink_resolver.h b/lib/ts/ink_resolver.h
new file mode 100644
index 00000000..ce94e2f2
--- /dev/null
+++ b/lib/ts/ink_resolver.h
@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 1983, 1987, 1989
+ *    The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+  Imported from Bind-9.5.2-P2
+
+  Changes:
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#ifndef _ink_resolver_h_
+#define	_ink_resolver_h_
+
+#include "ink_platform.h"
+#include <ts/ink_inet.h>
+#include <resolv.h>
+#include <arpa/nameser.h>
+#ifdef HAVE_NET_PPP_DEFS_H
+#include <net/ppp_defs.h>
+#endif
+
+#if defined(openbsd)
+#define NS_INT16SZ          INT16SZ
+#define NS_INT32SZ          INT32SZ
+#define NS_CMPRSFLGS        INDIR_MASK
+#define NS_GET16            GETSHORT
+#define NS_GET32            GETLONG
+#define NS_PUT16            PUTSHORT
+#define NS_PUT32            PUTLONG
+#endif
+
+#define INK_RES_F_VC        0x00000001      /*%< socket is TCP */
+#define INK_RES_F_CONN      0x00000002      /*%< socket is connected */
+#define INK_RES_F_EDNS0ERR  0x00000004      /*%< EDNS0 caused errors */
+#define INK_RES_F__UNUSED   0x00000008      /*%< (unused) */
+#define INK_RES_F_LASTMASK  0x000000F0      /*%< ordinal server of last res_nsend */
+#define INK_RES_F_LASTSHIFT 4               /*%< bit position of LASTMASK "flag" */
+#define INK_RES_GETLAST(res) (((res)._flags & INK_RES_F_LASTMASK) >> INK_RES_F_LASTSHIFT)
+
+/* res_findzonecut2() options */
+#define INK_RES_EXHAUSTIVE  0x00000001      /*%< always do all queries */
+#define INK_RES_IPV4ONLY    0x00000002      /*%< IPv4 only */
+#define INK_RES_IPV6ONLY    0x00000004      /*%< IPv6 only */
+
+/*%
+ *  * Resolver options (keep these in synch with res_debug.c, please)
+ [amc] Most of these are never used. AFAICT it's RECURSE and DEBUG only.
+ *   */
+#define INK_RES_INIT        0x00000001      /*%< address initialized */
+#define INK_RES_DEBUG       0x00000002      /*%< print debug messages */
+#define INK_RES_AAONLY      0x00000004      /*%< authoritative answers only (!IMPL)*/
+#define INK_RES_USEVC       0x00000008      /*%< use virtual circuit */
+#define INK_RES_PRIMARY     0x00000010      /*%< query primary server only (!IMPL) */
+#define INK_RES_IGNTC       0x00000020      /*%< ignore trucation errors */
+#define INK_RES_RECURSE     0x00000040      /*%< recursion desired */
+#define INK_RES_DEFNAMES    0x00000080      /*%< use default domain name */
+#define INK_RES_STAYOPEN    0x00000100      /*%< Keep TCP socket open */
+#define INK_RES_DNSRCH      0x00000200      /*%< search up local domain tree */
+#define INK_RES_INSECURE1   0x00000400      /*%< type 1 security disabled */
+#define INK_RES_INSECURE2   0x00000800      /*%< type 2 security disabled */
+#define INK_RES_NOALIASES   0x00001000      /*%< shuts off HOSTALIASES feature */
+#define INK_RES_USE_INET6   0x00002000      /*%< use/map IPv6 in gethostbyname() */
+#define INK_RES_ROTATE      0x00004000      /*%< rotate ns list after each query */
+#define INK_RES_NOCHECKNAME 0x00008000      /*%< do not check names for sanity. */
+#define INK_RES_KEEPTSIG    0x00010000      /*%< do not strip TSIG records */
+#define INK_RES_BLAST       0x00020000      /*%< blast all recursive servers */
+#define INK_RES_NSID        0x00040000      /*%< request name server ID */
+#define INK_RES_NOTLDQUERY  0x00100000      /*%< don't unqualified name as a tld */
+#define INK_RES_USE_DNSSEC  0x00200000      /*%< use DNSSEC using OK bit in OPT */
+/* #define INK_RES_DEBUG2   0x00400000 */   /* nslookup internal */
+/* KAME extensions: use higher bit to avoid conflict with ISC use */
+#define INK_RES_USE_DNAME   0x10000000      /*%< use DNAME */
+#define INK_RES_USE_EDNS0   0x40000000      /*%< use EDNS0 if configured */
+
+#define INK_RES_DEFAULT     (INK_RES_RECURSE | INK_RES_DEFNAMES | \
+                         INK_RES_DNSRCH)
+
+#define INK_MAXNS                   32      /*%< max # name servers we'll track */
+#define INK_MAXDFLSRCH              3       /*%< # default domain levels to try */
+#define INK_MAXDNSRCH               6       /*%< max # domains in search path */
+#define INK_LOCALDOMAINPARTS        2       /*%< min levels in name that is "local" */
+#define INK_RES_TIMEOUT             5       /*%< min. seconds between retries */
+#define INK_RES_TIMEOUT             5       /*%< min. seconds between retries */
+#define INK_RES_MAXNDOTS            15      /*%< should reflect bit field size */
+#define INK_RES_MAXRETRANS          30      /*%< only for resolv.conf/RES_OPTIONS */
+#define INK_RES_MAXRETRY            5       /*%< only for resolv.conf/RES_OPTIONS */
+#define INK_RES_DFLRETRY            2       /*%< Default #/tries. */
+#define INK_RES_MAXTIME             65535   /*%< Infinity, in milliseconds. */
+
+#define INK_NS_TYPE_ELT  0x40 /*%< EDNS0 extended label type */
+#define INK_DNS_LABELTYPE_BITSTRING 0x41
+
+/// IP family preference for DNS resolution.
+/// Used for configuration.
+enum HostResPreference {
+  HOST_RES_PREFER_NONE = 0, ///< Invalid / init value.
+  HOST_RES_PREFER_CLIENT, ///< Prefer family of client connection.
+  HOST_RES_PREFER_IPV4, ///< Prefer IPv4.
+  HOST_RES_PREFER_IPV6  ///< Prefer IPv6
+};
+/// # of preference values.
+static int const N_HOST_RES_PREFERENCE = HOST_RES_PREFER_IPV6+1;
+/// # of entries in a preference ordering.
+static int const N_HOST_RES_PREFERENCE_ORDER = 3;
+/// Storage for preference ordering.
+typedef HostResPreference HostResPreferenceOrder[N_HOST_RES_PREFERENCE_ORDER];
+/// Global, hard wired default value for preference ordering.
+extern HostResPreferenceOrder const HOST_RES_DEFAULT_PREFERENCE_ORDER;
+/// Global (configurable) default.
+extern HostResPreferenceOrder host_res_default_preference_order;
+/// String versions of @c FamilyPreference
+extern char const* const HOST_RES_PREFERENCE_STRING[N_HOST_RES_PREFERENCE];
+
+/// IP family to use in a DNS query for a host address.
+/// Used during DNS query operations.
+enum HostResStyle{
+  HOST_RES_NONE = 0, ///< No preference / unspecified / init value.
+  HOST_RES_IPV4, ///< Use IPv4 if possible.
+  HOST_RES_IPV4_ONLY, ///< Resolve on IPv4 addresses.
+  HOST_RES_IPV6, ///< Use IPv6 if possible.
+  HOST_RES_IPV6_ONLY ///< Resolve only IPv6 addresses.
+};
+
+/// Strings for host resolution styles
+extern char const* const HOST_RES_STYLE_STRING[];
+
+/// Caclulate the effective resolution preferences.
+extern HostResStyle
+ats_host_res_from(
+		   int family, ///< Connection family
+		   HostResPreferenceOrder ///< Preference ordering.
+		   );
+/// Calculate the host resolution style to force a family match to @a addr.
+extern HostResStyle
+ats_host_res_match(sockaddr const* addr);
+
+/** Parse a host resolution configuration string.
+ */
+extern void
+parse_host_res_preference(
+			 char const* value, ///< [in] Configuration string.
+			  HostResPreferenceOrder order /// [out] Order to update.
+			  );
+
+#ifndef NS_GET16
+#define NS_GET16(s, cp) do { \
+        const u_char *t_cp = (const u_char *)(cp); \
+        (s) = ((u_int16_t)t_cp[0] << 8) \
+            | ((u_int16_t)t_cp[1]) \
+            ; \
+        (cp) += NS_INT16SZ; \
+} while (0)
+#endif
+
+#ifndef NS_GET32
+#define NS_GET32(l, cp) do { \
+        const u_char *t_cp = (const u_char *)(cp); \
+        (l) = ((u_int32_t)t_cp[0] << 24) \
+            | ((u_int32_t)t_cp[1] << 16) \
+            | ((u_int32_t)t_cp[2] << 8) \
+            | ((u_int32_t)t_cp[3]) \
+            ; \
+        (cp) += NS_INT32SZ; \
+} while (0)
+#endif
+
+#ifndef NS_PUT16
+#define NS_PUT16(s, cp) do { \
+        u_int16_t t_s = (u_int16_t)(s); \
+        u_char *t_cp = (u_char *)(cp); \
+        *t_cp++ = t_s >> 8; \
+        *t_cp   = t_s; \
+        (cp) += NS_INT16SZ; \
+} while (0)
+#endif
+
+#ifndef NS_PUT32
+#define NS_PUT32(l, cp) do { \
+        u_int32_t t_l = (u_int32_t)(l); \
+        u_char *t_cp = (u_char *)(cp); \
+        *t_cp++ = t_l >> 24; \
+        *t_cp++ = t_l >> 16; \
+        *t_cp++ = t_l >> 8; \
+        *t_cp   = t_l; \
+        (cp) += NS_INT32SZ; \
+} while (0)
+#endif
+
+// Do we really need these to be C compatible? - AMC
+struct ts_imp_res_state {
+  int     retrans;                /*%< retransmission time interval */
+  int     retry;                  /*%< number of times to retransmit */
+#ifdef sun
+  u_int   options;                /*%< option flags - see below. */
+#else
+  u_long  options;                /*%< option flags - see below. */
+#endif
+  int     nscount;                /*%< number of name servers */
+  IpEndpoint nsaddr_list[INK_MAXNS];    /*%< address of name server */
+  u_short id;                     /*%< current message id */
+  char    *dnsrch[MAXDNSRCH+1];   /*%< components of domain to search */
+  char    defdname[256];          /*%< default domain (deprecated) */
+#ifdef sun
+  u_int   pfcode;                 /*%< RES_PRF_ flags - see below. */
+#else
+  u_long  pfcode;                 /*%< RES_PRF_ flags - see below. */
+#endif
+  unsigned ndots:4;               /*%< threshold for initial abs. query */
+  unsigned nsort:4;               /*%< number of elements in sort_list[] */
+  char    unused[3];
+  res_send_qhook qhook;           /*%< query hook */
+  res_send_rhook rhook;           /*%< response hook */
+  int     res_h_errno;            /*%< last one set for this context */
+  int     _vcsock;                /*%< PRIVATE: for res_send VC i/o */
+  u_int   _flags;                 /*%< PRIVATE: see below */
+  u_int   _pad;                   /*%< make _u 64 bit aligned */
+  u_int16_t              _nstimes[INK_MAXNS]; /*%< ms. */
+};
+typedef ts_imp_res_state *ink_res_state;
+
+int ink_res_init(
+  ink_res_state,
+  IpEndpoint const* pHostList,
+  size_t pHostListSize,
+  const char *pDefDomain = NULL,
+  const char *pSearchList = NULL,
+  const char *pResolvConf = NULL
+);
+
+int ink_res_mkquery(ink_res_state, int, const char *, int, int,
+                    const unsigned char *, int, const unsigned char *, unsigned char *, int);
+
+int ink_ns_name_ntop(const u_char *src, char *dst, size_t dstsiz);
+
+/** Initialize global values for HttpProxyPort / Host Resolution.
+ */
+void ts_host_res_global_init();
+
+/** Generate a string representation of a host resolution preference ordering.
+    @return The length of the string.
+ */
+int
+ts_host_res_order_to_string(
+			    HostResPreferenceOrder const& order, ///< order to print
+			    char* out, ///< Target buffer for string.
+			    int size ///< Size of buffer.
+			    );
+
+#endif   /* _ink_resolver_h_ */
+
diff --git a/lib/ts/ink_resource.cc b/lib/ts/ink_resource.cc
new file mode 100644
index 00000000..b23dcf5d
--- /dev/null
+++ b/lib/ts/ink_resource.cc
@@ -0,0 +1,37 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "ink_assert.h"
+#include "ink_atomic.h"
+#include "ink_resource.h"
+#include "ink_stack_trace.h"
+
+volatile int res_track_memory = 0; // Disabled by default
+
+Resource *
+res_lookup(const char */* path ATS_UNUSED */)
+{
+  return NULL;
+}
diff --git a/lib/ts/ink_resource.h b/lib/ts/ink_resource.h
new file mode 100644
index 00000000..c62e22c7
--- /dev/null
+++ b/lib/ts/ink_resource.h
@@ -0,0 +1,53 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_RESOURCE_H__
+#define __INK_RESOURCE_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ink_apidefs.h"
+#include "ink_defs.h"
+#include "ink_memory.h"
+
+extern volatile int res_track_memory;   /* set this to zero to disable resource tracking */
+
+#define __RES_PATH(x)   #x
+#define _RES_PATH(x)    __RES_PATH (x)
+#define RES_PATH(x)     x __FILE__ ":" _RES_PATH (__LINE__)
+
+struct Resource
+{
+  void *magic;
+  struct Resource *next;
+  const char *path;
+  int64_t value;
+  int64_t snapshot;
+  int64_t baseline;
+};
+
+typedef struct Resource Resource;
+
+#endif /* __INK_RESOURCE_H__ */
diff --git a/lib/ts/ink_rwlock.cc b/lib/ts/ink_rwlock.cc
new file mode 100644
index 00000000..0a6b6e33
--- /dev/null
+++ b/lib/ts/ink_rwlock.cc
@@ -0,0 +1,167 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "ink_rwlock.h"
+
+//-------------------------------------------------------------------------
+// ink_rwlock_init
+//-------------------------------------------------------------------------
+
+int
+ink_rwlock_init(ink_rwlock * rw)
+{
+
+  int result;
+
+  if ((result = ink_mutex_init(&rw->rw_mutex, NULL)) != 0)
+    goto Lerror;
+  ink_cond_init(&rw->rw_condreaders);
+  ink_cond_init(&rw->rw_condwriters);
+  rw->rw_nwaitreaders = 0;
+  rw->rw_nwaitwriters = 0;
+  rw->rw_refcount = 0;
+  rw->rw_magic = RW_MAGIC;
+
+  return (0);
+
+Lerror:
+  return (result);              /* an errno value */
+
+}
+
+//-------------------------------------------------------------------------
+// ink_rwlock_destroy
+//-------------------------------------------------------------------------
+
+int
+ink_rwlock_destroy(ink_rwlock * rw)
+{
+
+  if (rw->rw_magic != RW_MAGIC)
+    return (EINVAL);
+  if (rw->rw_refcount != 0 || rw->rw_nwaitreaders != 0 || rw->rw_nwaitwriters != 0)
+    return (EBUSY);
+
+  ink_mutex_destroy(&rw->rw_mutex);
+  ink_cond_destroy(&rw->rw_condreaders);
+  ink_cond_destroy(&rw->rw_condwriters);
+  rw->rw_magic = 0;
+
+  return (0);
+}
+
+//-------------------------------------------------------------------------
+// ink_rwlock_rdlock
+//-------------------------------------------------------------------------
+
+int
+ink_rwlock_rdlock(ink_rwlock * rw)
+{
+
+  int result;
+
+  if (rw->rw_magic != RW_MAGIC)
+    return (EINVAL);
+
+  if ((result = ink_mutex_acquire(&rw->rw_mutex)) != 0)
+    return (result);
+
+  /* give preference to waiting writers */
+  while (rw->rw_refcount < 0 || rw->rw_nwaitwriters > 0) {
+    rw->rw_nwaitreaders++;
+    ink_cond_wait(&rw->rw_condreaders, &rw->rw_mutex);
+    rw->rw_nwaitreaders--;
+  }
+  rw->rw_refcount++;            /* another reader has a read lock */
+
+  ink_mutex_release(&rw->rw_mutex);
+
+  return (0);
+
+}
+
+//-------------------------------------------------------------------------
+// ink_rwlock_wrlock
+//-------------------------------------------------------------------------
+
+int
+ink_rwlock_wrlock(ink_rwlock * rw)
+{
+
+  int result;
+
+  if (rw->rw_magic != RW_MAGIC)
+    return (EINVAL);
+
+  if ((result = ink_mutex_acquire(&rw->rw_mutex)) != 0)
+    return (result);
+
+  while (rw->rw_refcount != 0) {
+    rw->rw_nwaitwriters++;
+    ink_cond_wait(&rw->rw_condwriters, &rw->rw_mutex);
+    rw->rw_nwaitwriters--;
+  }
+  rw->rw_refcount = -1;
+
+  ink_mutex_release(&rw->rw_mutex);
+
+  return (0);
+
+}
+
+//-------------------------------------------------------------------------
+// ink_rwlock_unlock
+//-------------------------------------------------------------------------
+
+int
+ink_rwlock_unlock(ink_rwlock * rw)
+{
+
+  int result;
+
+  if (rw->rw_magic != RW_MAGIC)
+    return (EINVAL);
+
+  if ((result = ink_mutex_acquire(&rw->rw_mutex)) != 0)
+    return (result);
+
+  if (rw->rw_refcount > 0)
+    rw->rw_refcount--;          /* releasing a reader */
+  else if (rw->rw_refcount == -1)
+    rw->rw_refcount = 0;        /* releasing a reader */
+  else
+    ink_release_assert("invalid rw_refcount!");
+
+  /* give preference to waiting writers over waiting readers */
+  if (rw->rw_nwaitwriters > 0) {
+    if (rw->rw_refcount == 0)
+      ink_cond_signal(&rw->rw_condwriters);
+  } else if (rw->rw_nwaitreaders > 0)
+    ink_cond_broadcast(&rw->rw_condreaders);
+
+  ink_mutex_release(&rw->rw_mutex);
+
+  return (0);
+
+}
diff --git a/lib/ts/ink_rwlock.h b/lib/ts/ink_rwlock.h
new file mode 100644
index 00000000..06a732e6
--- /dev/null
+++ b/lib/ts/ink_rwlock.h
@@ -0,0 +1,55 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//-------------------------------------------------------------------------
+// Read-Write Lock -- Code from Stevens' Unix Network Programming -
+// Interprocess Communications.  This is the simple implementation and
+// will not work if used in conjunction with ink_thread_cancel().
+//-------------------------------------------------------------------------
+
+#ifndef _INK_RWLOCK_H_
+#define _INK_RWLOCK_H_
+
+#include "ink_mutex.h"
+#include "ink_thread.h"
+
+#define RW_MAGIC 0x19283746
+
+struct ink_rwlock
+{
+  ink_mutex rw_mutex;           /* basic lock on this struct */
+  ink_cond rw_condreaders;      /* for reader threads waiting */
+  ink_cond rw_condwriters;      /* for writer threads waiting */
+  int rw_magic;                 /* for error checking */
+  int rw_nwaitreaders;          /* the number waiting */
+  int rw_nwaitwriters;          /* the number waiting */
+  int rw_refcount;
+};
+
+int ink_rwlock_init(ink_rwlock * rw);
+int ink_rwlock_destroy(ink_rwlock * rw);
+int ink_rwlock_rdlock(ink_rwlock * rw);
+int ink_rwlock_wrlock(ink_rwlock * rw);
+int ink_rwlock_unlock(ink_rwlock * rw);
+
+#endif
diff --git a/lib/ts/ink_sock.cc b/lib/ts/ink_sock.cc
new file mode 100644
index 00000000..7429e53e
--- /dev/null
+++ b/lib/ts/ink_sock.cc
@@ -0,0 +1,254 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+  Socket operations
+
+
+
+***************************************************************************/
+#include "libts.h"
+
+//
+// Compilation options
+//
+
+// #define CHECK_PLAUSIBILITY_OF_SOCKADDR
+
+
+#ifdef CHECK_PLAUSIBILITY_OF_SOCKADDR
+#define CHECK_PLAUSIBLE_SOCKADDR(_n,_f,_l) check_plausible_sockaddr(_n,_f,_n)
+inline void
+check_valid_sockaddr(sockaddr * sa, char *file, int line)
+{
+  sockaddr_in *si = (sockaddr_in *) sa;
+  unsigned short port = ntohs(si->sin_port);
+  unsigned short addr = ntohl(si->sin_addr.s_addr);
+
+  if (port > 20000) {
+    cerr << "[byteordering] In " << file << ", line " << line << " the IP port ";
+    cerr << "was found to be " << port << "(in host byte order).\n";
+    cerr << "[byteordering] This seems inplausible, so check for byte order problems\n";
+  }
+}
+#else
+#define CHECK_PLAUSIBLE_SOCKADDR(_n,_f,_l)
+#endif
+
+int
+safe_setsockopt(int s, int level, int optname, char *optval, int optlevel)
+{
+  int r;
+  do {
+    r = setsockopt(s, level, optname, optval, optlevel);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+int
+safe_getsockopt(int s, int level, int optname, char *optval, int *optlevel)
+{
+  int r;
+  do {
+    r = getsockopt(s, level, optname, optval, (socklen_t *) optlevel);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+int
+safe_fcntl(int fd, int cmd, int arg)
+{
+  int r = 0;
+  do {
+    r = fcntl(fd, cmd, arg);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+int
+safe_set_fl(int fd, int arg)
+{
+  int flags = safe_fcntl(fd, F_GETFL, 0);
+  if (flags < 0)
+    return flags;
+  flags |= arg;
+  flags = safe_fcntl(fd, F_SETFL, flags);
+  return flags;
+}
+
+int
+safe_clr_fl(int fd, int arg)
+{
+  int flags = safe_fcntl(fd, F_GETFL, 0);
+  if (flags < 0)
+    return flags;
+  flags &= ~arg;
+  flags = safe_fcntl(fd, F_SETFL, flags);
+  return flags;
+}
+
+int
+safe_nonblocking(int fd)
+{
+  return safe_set_fl(fd, O_NONBLOCK);
+}
+
+int
+safe_blocking(int fd)
+{
+  return safe_clr_fl(fd, O_NONBLOCK);
+}
+
+int
+write_ready(int fd)
+{
+  struct pollfd p;
+  p.events = POLLOUT;
+  p.fd = fd;
+  int r = poll(&p, 1, 0);
+  if (r <= 0)
+    return r;
+  if (p.revents & (POLLERR | POLLNVAL))
+    return -1;
+  if (p.revents & (POLLOUT | POLLHUP))
+    return 1;
+  return 0;
+}
+
+int
+read_ready(int fd)
+{
+  struct pollfd p;
+  p.events = POLLIN;
+  p.fd = fd;
+  int r = poll(&p, 1, 0);
+  if (r <= 0)
+    return r;
+  if (p.revents & (POLLERR | POLLNVAL))
+    return -1;
+  if (p.revents & (POLLIN | POLLHUP))
+    return 1;
+  return 0;
+}
+
+int
+safe_ioctl(int fd, int request, char *arg)
+{
+  int r = -1;
+  do {
+    r = ioctl(fd, request, arg);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+int
+safe_bind(int s, struct sockaddr const* name, int namelen)
+{
+  int r;
+  CHECK_PLAUSIBLE_SOCKADDR(name, __FILE__, __LINE__);
+  do {
+    r = bind(s, name, namelen);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+int
+safe_listen(int s, int backlog)
+{
+  int r;
+  do {
+    r = listen(s, backlog);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+int
+safe_getsockname(int s, struct sockaddr *name, int *namelen)
+{
+  int r;
+  do {
+    r = getsockname(s, name, (socklen_t *) namelen);
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  return r;
+}
+
+char
+fd_read_char(int fd)
+{
+  char c;
+  int r;
+  do {
+    r = read(fd, &c, 1);
+    if (r > 0)
+      return c;
+  } while (r < 0 && (errno == EAGAIN || errno == EINTR));
+  perror("fd_read_char");
+  ink_assert(!"fd_read_char");
+  return c;
+}
+
+int
+fd_read_line(int fd, char *s, int len)
+{
+  char c;
+  int numread = 0, r;
+  //char *buf = s;
+  do {
+    do
+      r = read(fd, &c, 1);
+    while (r < 0 && (errno == EAGAIN || errno == EINTR));
+
+    if (r <= 0 && numread)
+      break;
+
+    if (r <= 0)
+      return r;
+
+    if (c == '\n')
+      break;
+
+    s[numread++] = c;
+  } while (numread < len - 1);
+
+  s[numread] = 0;
+  return numread;
+}
+
+
+int
+close_socket(int s)
+{
+  return close(s);
+}
+
+int
+write_socket(int s, const char *buffer, int length)
+{
+  return write(s, (const void *) buffer, length);
+}
+
+int
+read_socket(int s, char *buffer, int length)
+{
+  return read(s, (void *) buffer, length);
+}
diff --git a/lib/ts/ink_sock.h b/lib/ts/ink_sock.h
new file mode 100644
index 00000000..39488d9c
--- /dev/null
+++ b/lib/ts/ink_sock.h
@@ -0,0 +1,66 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+  Socket operations
+
+
+
+***************************************************************************/
+#if !defined (_ink_sock_h_)
+#define _ink_sock_h_
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+
+#include "ink_apidefs.h"
+
+int safe_setsockopt(int s, int level, int optname, char *optval, int optlevel);
+int safe_getsockopt(int s, int level, int optname, char *optval, int *optlevel);
+int safe_bind(int s, struct sockaddr const* name, int namelen);
+int safe_listen(int s, int backlog);
+int safe_getsockname(int s, struct sockaddr *name, int *namelen);
+
+int safe_fcntl(int fd, int cmd, int arg);
+int safe_ioctl(int fd, int request, char *arg);
+
+int safe_set_fl(int fd, int arg);
+int safe_clr_fl(int fd, int arg);
+
+int safe_blocking(int fd);
+int safe_nonblocking(int fd);
+
+int write_ready(int fd);
+int read_ready(int fd);
+
+char fd_read_char(int fd);
+int fd_read_line(int fd, char *s, int len);
+
+int close_socket(int s);
+int write_socket(int s, const char *buffer, int length);
+int read_socket(int s, char *buffer, int length);
+
+inkcoreapi uint32_t ink_inet_addr(const char *s);
+
+
+#endif /* _ink_sock_h_ */
diff --git a/lib/ts/ink_sprintf.cc b/lib/ts/ink_sprintf.cc
new file mode 100644
index 00000000..8c053ee1
--- /dev/null
+++ b/lib/ts/ink_sprintf.cc
@@ -0,0 +1,152 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+
+  ink_sprintf.cc
+
+  This file implements some Inktomi variants of sprintf, to do bounds
+  checking and length counting.
+
+
+  ****************************************************************************/
+
+#include "ink_sprintf.h"
+
+#define NUL '\0'
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      int ink_bsprintf(char *buffer, char *format, ...)
+//      int ink_bvsprintf(char *buffer, char *format, va_list ap)
+//
+//      This is a very simplified version of sprintf that has the following
+//      behavior:
+//
+//      (1) the length in output characters is returned, including final NUL
+//      (2) buffer can be NULL, for just counting the output chars
+//      (3) only %s and %d are supported, with no field modifiers
+//
+//////////////////////////////////////////////////////////////////////////////
+
+int
+ink_bsprintf(char *buffer, const char *format, ...)
+{
+  int l;
+
+  va_list ap;
+  va_start(ap, format);
+  l = ink_bvsprintf(buffer, format, ap);
+  va_end(ap);
+
+  return (l);
+}
+
+
+int
+ink_bvsprintf(char *buffer, const char *format, va_list ap)
+{
+  int d_val;
+  const char *s;
+  char *d, *p, *s_val, d_buffer[32];
+  va_list ap_local;
+  va_copy(ap_local, ap);
+
+  s = format;
+  d = buffer;
+
+  while (*s) {
+    /////////////////////////////
+    // handle non-% characters //
+    /////////////////////////////
+
+    if (buffer)                 // if have output buffer
+      while (*s && (*s != '%')) {
+        *d++ = *s++;
+      }                         //   really copy, else
+    else
+      while (*s && (*s != '%')) {
+        d++;
+        s++;
+      }                         //   pass over string
+
+    ///////////////////////////
+    // handle NUL characters //
+    ///////////////////////////
+
+    if (*s == NUL)
+      break;                    // end of string
+
+    /////////////////////////
+    // handle % characters //
+    /////////////////////////
+
+    ++s;                        // consume % character
+
+    switch (*s)                 // dispatch on flag
+    {
+    case 's':                  // %s pattern
+      ++s;                      // consume 's'
+      s_val = va_arg(ap_local, char *);       // grab string argument
+      p = s_val;                // temporary pointer
+      if (buffer)               // if have output buffer
+        while (*p) {
+          *d++ = *p++;
+        }                       //   copy value
+      else                      // else
+        while (*p) {
+          d++;
+          p++;
+        }                       //   pass over value
+      break;
+    case 'd':                  // %d pattern
+      ++s;                      // consume 'd'
+      d_val = va_arg(ap_local, int);  // grab integer argument
+      snprintf(d_buffer, sizeof(d_buffer), "%d", d_val);        // stringify integer
+      p = d_buffer;             // temporary pointer
+      if (buffer)               // if have output buffer
+        while (*p) {
+          *d++ = *p++;
+        }                       //   copy value
+      else                      // else
+        while (*p) {
+          d++;
+          p++;
+        }                       //   pass over value
+      break;
+    default:                   // something else
+      if (buffer)
+        *d = *s;                // copy unknown character
+      ++d;
+      ++s;
+      break;
+    }
+  }
+
+  if (buffer)
+    *d = NUL;
+  ++d;
+
+  va_end(ap_local);
+  return (int) (d - buffer);
+}
diff --git a/lib/ts/ink_sprintf.h b/lib/ts/ink_sprintf.h
new file mode 100644
index 00000000..67da29fd
--- /dev/null
+++ b/lib/ts/ink_sprintf.h
@@ -0,0 +1,48 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+
+  ink_sprintf.h
+
+  This file implements some Inktomi variants of sprintf, to do bounds
+  checking and length counting.
+
+
+  ****************************************************************************/
+
+#ifndef _ink_sprintf_h_
+#define	_ink_sprintf_h_
+
+#include <stdio.h>
+#include <stdarg.h>
+#include "ink_apidefs.h"
+#include "ink_defs.h"
+
+int
+ink_bsprintf(char *buffer, const char *format, ...)
+TS_PRINTFLIKE(2, 3);
+int
+ink_bvsprintf(char *buffer, const char *format, va_list ap);
+
+#endif
diff --git a/lib/ts/ink_stack_trace.cc b/lib/ts/ink_stack_trace.cc
new file mode 100644
index 00000000..17f9ddc6
--- /dev/null
+++ b/lib/ts/ink_stack_trace.cc
@@ -0,0 +1,76 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "ink_stack_trace.h"
+
+#include <strings.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifndef STDERR_FILENO
+#define STDERR_FILENO 2
+#endif
+
+#if TS_HAS_BACKTRACE
+
+#include <execinfo.h>           /* for backtrace_symbols, etc. */
+#include <signal.h>
+
+void
+ink_stack_trace_dump()
+{
+  int btl;
+
+  // Recopy and re-terminate the app name in case it has been trashed.
+  const char *msg = " - STACK TRACE: \n";
+  if (write(STDERR_FILENO, program_name, strlen(program_name)) == -1)
+    return;
+  if (write(STDERR_FILENO, msg, strlen(msg)) == -1)
+    return;
+
+  // In certain situations you can get stuck in malloc waiting for a lock
+  // that your program held when it segfaulted. We set an alarm so that
+  // if this situation happens it will allow traffic_server to exit.
+  alarm(10);
+
+  void *stack[INK_STACK_TRACE_MAX_LEVELS + 1];
+  memset(stack, 0, sizeof(stack));
+  if ((btl = backtrace(stack, INK_STACK_TRACE_MAX_LEVELS)) > 2) {
+    // dump the backtrace to stderr
+    backtrace_symbols_fd(stack + 2, btl - 2, STDERR_FILENO);
+  }
+}
+
+#else  /* !TS_HAS_BACKTRACE */
+
+void
+ink_stack_trace_dump()
+{
+  const char msg[] = "ink_stack_trace_dump not implemented on this operating system\n";
+  if (write(STDERR_FILENO, msg, sizeof(msg) - 1) == -1)
+      return;
+}
+
+#endif  /* TS_HAS_BACKTRACE */
diff --git a/lib/ts/ink_stack_trace.h b/lib/ts/ink_stack_trace.h
new file mode 100644
index 00000000..7490cb84
--- /dev/null
+++ b/lib/ts/ink_stack_trace.h
@@ -0,0 +1,40 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef ink_stack_trace_h
+#define ink_stack_trace_h
+
+// The max number of levels in the stack trace
+#define INK_STACK_TRACE_MAX_LEVELS		100
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* dumps the current back trace to stderr */
+  void ink_stack_trace_dump();
+#ifdef __cplusplus
+}
+#endif
+
+#endif                          /* ink_stack_trace_h */
diff --git a/lib/ts/ink_string++.cc b/lib/ts/ink_string++.cc
new file mode 100644
index 00000000..dcc17998
--- /dev/null
+++ b/lib/ts/ink_string++.cc
@@ -0,0 +1,182 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_string++.cc
+
+  C++ support for string manipulation.
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+
+/***********************************************************************
+ *                                                                     *
+ *       StrList (doubly-linked list of string/length list cells)      *
+ *                                                                     *
+ ***********************************************************************/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+StrList::dump(FILE * fp)
+{
+  Str *str;
+
+  for (str = head; str != NULL; str = str->next)
+    str->dump(fp);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+Str *
+StrList::_new_cell(const char *s, int len_not_counting_nul)
+{
+  Str *cell;
+  char *p;
+  int l = len_not_counting_nul;
+
+  // allocate a cell from the array or heap
+  if (cells_allocated < STRLIST_BASE_CELLS) {
+    cell = &(base_cells[cells_allocated]);
+  } else {
+    p = (char *) alloc(sizeof(Str) + 7);
+    if (p == NULL)
+      return (NULL);            // FIX: scale heap
+    p = (char *) ((((uintptr_t)p) + 7) & ~7);       // round up to multiple of 8
+    cell = (Str *) p;
+  }
+  ++cells_allocated;
+
+  // are we supposed to copy the string?
+  if (copy_when_adding_string) {
+    char *buf = (char *) alloc(l + 1);
+    if (buf == NULL)
+      return (NULL);            // FIX: need to grow heap!
+    memcpy(buf, s, l);
+    buf[l] = '\0';
+
+    cell->str = (const char *) buf;
+  } else {
+    cell->str = s;
+  }
+
+  cell->len = l;
+
+  return (cell);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void *
+StrList::overflow_heap_alloc(int size)
+{
+  if (!overflow_first) {
+    overflow_first = overflow_current = StrListOverflow::create_heap(STRLIST_OVERFLOW_HEAP_SIZE);
+  }
+
+  return overflow_current->alloc(size, &overflow_current);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+StrList::overflow_heap_clean()
+{
+  if (overflow_first)
+    overflow_first->clean();
+}
+
+
+#define INIT_OVERFLOW_ALIGNMENT      8
+// XXX: This is basically INK_ALIGN_DEFAULT
+const int overflow_head_hdr_size = INK_ALIGN(sizeof(StrListOverflow), INIT_OVERFLOW_ALIGNMENT);
+
+void
+StrListOverflow::init()
+{
+  next = NULL;
+  heap_size = 0;
+  heap_used = 0;
+}
+
+void
+StrListOverflow::clean()
+{
+  StrListOverflow *current_free = this;
+  StrListOverflow *next_free;
+
+  while (current_free) {
+    next_free = current_free->next;
+    ats_free(current_free);
+    current_free = next_free;
+  }
+}
+
+void *
+StrListOverflow::alloc(int size, StrListOverflow ** new_heap_ptr)
+{
+
+  if (size > (heap_size - heap_used)) {
+    int new_heap_size = heap_size * 2;
+
+    if (new_heap_size < size) {
+      new_heap_size = INK_ALIGN(size, 2048);
+      ink_release_assert(new_heap_size >= size);
+    }
+
+    ink_assert(next == NULL);
+    *new_heap_ptr = next = create_heap(new_heap_size);
+    return next->alloc(size, new_heap_ptr);
+  }
+
+  char *start = ((char *) this) + overflow_head_hdr_size;
+  char *rval = start + heap_used;
+  heap_used += size;
+  ink_assert(heap_used <= heap_size);
+  return (void *) rval;
+}
+
+StrListOverflow *
+StrListOverflow::create_heap(int user_size)
+{
+  // I'm aligning the first allocation since the old implementation
+  //  used to do this by calling ats_malloc.  I assume it doesn't
+  //  matter since we are talking about strings but since this is a
+  //  last minute emergency bug fix, I'm not take any changes.  If
+  //  allocations are not of aligned values then subsequents allocations
+  //  aren't aligned, again mirroring the previous implemnetation
+  int total_size = overflow_head_hdr_size + user_size;
+
+  StrListOverflow *o = (StrListOverflow *)ats_malloc(total_size);
+  o->init();
+  o->heap_size = user_size;
+
+  return o;
+}
diff --git a/lib/ts/ink_string++.h b/lib/ts/ink_string++.h
new file mode 100644
index 00000000..768303e1
--- /dev/null
+++ b/lib/ts/ink_string++.h
@@ -0,0 +1,335 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_string++.h
+
+  C++ support for string manipulation.
+
+
+ ****************************************************************************/
+
+#if !defined (_ink_string_pp_h_)
+#define _ink_string_pp_h_
+#include <stdio.h>
+#include <strings.h>
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      mem_copy
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static inline void
+_memcpy(char *dest, const char *src, int nbytes)
+{
+  for (int i = 0; i < nbytes; i++)
+    dest[i] = src[i];
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      mem_len
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static inline int
+_strlen(const char *src)
+{
+  const char *old_src = src;
+  while (*src)
+    src++;
+  return (int) (src - old_src);
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                     Str (string/length list cell)                   *
+ *                                                                     *
+ ***********************************************************************/
+
+struct Str
+{
+  const char *str;              // string pointer
+  size_t len;                   // length of string (not counting NUL)
+  struct Str *next;             // next in list
+  struct Str *prev;             // prev in list
+
+    Str():str(NULL), len(0), next(NULL), prev(NULL)
+  {
+  }
+  Str(char *s)
+  {
+    str = s;
+    len = strlen(s);
+    next = NULL;
+    prev = NULL;
+  }
+  Str(char *s, int l)
+  {
+    str = s;
+    len = l;
+    next = NULL;
+    prev = NULL;
+  }
+
+  void clean()
+  {
+    str = NULL;
+    len = 0;
+    next = NULL;
+    prev = NULL;
+  }
+
+  void dump(FILE * fp = stderr) {
+    fprintf(fp, "Str [\"%.*s\", len %d]\n", (int) len, str, (int) len);
+  }
+};
+
+/***********************************************************************
+ *                                                                     *
+ *       StrList (doubly-linked list of string/length list cells)      *
+ *                                                                     *
+ ***********************************************************************/
+
+#define	STRLIST_BASE_HEAP_SIZE		128
+#define	STRLIST_OVERFLOW_HEAP_SIZE	1024
+#define	STRLIST_BASE_CELLS		5
+
+struct StrListOverflow;
+
+struct StrList
+{
+public:
+  int count;
+  Str *head;
+  Str *tail;
+
+public:
+    StrList(bool do_copy_when_adding_string = true);
+   ~StrList();
+
+  Str *get_idx(int i);
+  void append(Str * str);
+  void prepend(Str * str);
+  void add_after(Str * prev, Str * str);
+  void detach(Str * str);
+
+  Str *new_cell(const char *s, int len_not_counting_nul);
+  Str *append_string(const char *s, int len_not_counting_nul);
+
+  void dump(FILE * fp = stderr);
+
+private:
+  void init();
+  void clean();
+
+  void *base_heap_alloc(int size);
+  void *alloc(int size);
+  Str *_new_cell(const char *s, int len_not_counting_nul);
+  void *overflow_heap_alloc(int size);
+  void overflow_heap_clean();
+
+  Str base_cells[STRLIST_BASE_CELLS];
+  char base_heap[STRLIST_BASE_HEAP_SIZE];
+  int cells_allocated;
+  int base_heap_size;
+  int base_heap_used;
+  StrListOverflow *overflow_current;
+  StrListOverflow *overflow_first;
+  bool copy_when_adding_string;
+};
+
+struct StrListOverflow
+{
+  StrListOverflow *next;
+  int heap_size;
+  int heap_used;
+
+  void init();
+  void clean();
+  void *alloc(int size, StrListOverflow ** new_heap_ptr);
+  static StrListOverflow *create_heap(int user_size);
+};
+
+inline void
+StrList::init()
+{
+  count = 0;
+  cells_allocated = 0;
+  head = tail = NULL;
+  base_heap_size = STRLIST_BASE_HEAP_SIZE;
+  base_heap_used = 0;
+  overflow_first = NULL;
+  overflow_current = NULL;
+}
+
+inline void
+StrList::clean()
+{
+  if (overflow_first)
+    overflow_heap_clean();
+  init();
+}
+
+inline
+StrList::StrList(bool do_copy_when_adding_string)
+{
+  memset(base_heap, 0, sizeof(base_heap));
+  copy_when_adding_string = do_copy_when_adding_string;
+  init();
+}
+
+inline
+StrList::~
+StrList()
+{
+  clean();
+}
+
+inline void *
+StrList::base_heap_alloc(int size)
+{
+  char *p;
+
+  if (size <= (base_heap_size - base_heap_used)) {
+    p = &(base_heap[base_heap_used]);
+    base_heap_used += size;
+    return ((void *) p);
+  } else
+    return (NULL);
+}
+
+inline void *
+StrList::alloc(int size)
+{
+  void *p = base_heap_alloc(size);
+  if (p == NULL)
+    p = overflow_heap_alloc(size);
+  return (p);
+}
+
+inline Str *
+StrList::new_cell(const char *s, int len_not_counting_nul)
+{
+  Str *cell;
+  int l = len_not_counting_nul;
+
+  // allocate a cell from the array or heap
+  if ((cells_allocated < STRLIST_BASE_CELLS) && (!copy_when_adding_string)) {
+    cell = &(base_cells[cells_allocated++]);
+    cell->str = s;
+    cell->len = l;
+    return (cell);
+  } else {
+    return (_new_cell(s, len_not_counting_nul));
+  }
+}
+
+inline Str *
+StrList::get_idx(int i)
+{
+  Str *s;
+
+  for (s = head; ((s != NULL) && i); s = s->next, i--);
+  return ((i == 0) ? s : NULL);
+}
+
+inline void
+StrList::append(Str * str)
+{
+  // do nothing if str is NULL to avoid pointer chasing below
+  if (str == NULL)
+    return;
+  ++count;
+  str->next = NULL;
+  str->prev = tail;
+
+  if (tail == NULL) {
+    head = tail = str;
+  } else {
+    tail->next = str;
+    tail = str;
+  }
+}
+
+inline void
+StrList::prepend(Str * str)
+{
+  if (str == NULL)
+    return;
+  ++count;
+  str->next = head;
+  str->prev = NULL;
+
+  if (tail == NULL) {
+    head = tail = str;
+  } else {
+    head->prev = str;
+    head = str;
+  }
+}
+
+inline void
+StrList::add_after(Str * prev, Str * str)
+{
+  if (str == NULL || prev == NULL)
+    return;
+  ++count;
+  str->next = prev->next;
+  str->prev = prev;
+  prev->next = str;
+  if (tail == prev)
+    tail = str;
+}
+
+inline void
+StrList::detach(Str * str)
+{
+  if (str == NULL)
+    return;
+  --count;
+
+  if (head == str)
+    head = str->next;
+  if (tail == str)
+    tail = str->prev;
+  if (str->prev)
+    str->prev->next = str->next;
+  if (str->next)
+    str->next->prev = str->prev;
+}
+
+inline Str *
+StrList::append_string(const char *s, int len_not_counting_nul)
+{
+  Str *cell;
+
+  cell = new_cell(s, len_not_counting_nul);
+  append(cell);
+  return (cell);
+}
+
+#endif
diff --git a/lib/ts/ink_string.cc b/lib/ts/ink_string.cc
new file mode 100644
index 00000000..3ce655a3
--- /dev/null
+++ b/lib/ts/ink_string.cc
@@ -0,0 +1,272 @@
+/** @file
+
+  String and text processing routines for libts
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"   /* MAGIC_EDITING_TAG */
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define INK_MAX_STRING_ARRAY_SIZE 128
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+char *
+ink_memcpy_until_char(char *dst, char *src, unsigned int n, unsigned char c)
+{
+  unsigned int i = 0;
+  for (; ((i < n) && (((unsigned char) src[i]) != c)); i++)
+    dst[i] = src[i];
+  return &src[i];
+}
+
+/*---------------------------------------------------------------------------*
+
+  char *ink_strncpy(char *dest, char *src, int n)
+
+  This routine is a safer version of strncpy which always NUL terminates
+  the destination string.  Note that this routine has the SAME semantics
+  as strncpy, such as copying exactly n bytes, padding dest with NULs
+  is necessary.  Use ink_string_copy for a non-padding version.
+
+ *---------------------------------------------------------------------------*/
+
+char *
+ink_strncpy(char *dest, const char *src, int n)
+{
+  if (likely(src && dest)) {
+    if (n > 1)
+      strncpy(dest, src, (n - 1));
+    if (n > 0)
+      dest[n - 1] = '\0';
+  }
+
+  return (dest);
+}                               /* End ink_strncpy */
+
+/*---------------------------------------------------------------------------*
+
+  char *ink_strncat(char *dest, char *src, int n)
+
+  This routine is a safer version of strncat which always NUL terminates
+  the destination string.  Note that this routine has the SAME semantics
+  as strncat, such as concatinating exactly n bytes, padding dest with NULs
+  is necessary.  Use ink_string_copy for a non-padding version.
+
+ *---------------------------------------------------------------------------*/
+
+char *
+ink_strncat(char *dest, const char *src, int n)
+{
+  if (likely(src && dest)) {
+    if (n > 1)
+      strncat(dest, src, (n - 1));
+    if (n > 0)
+      dest[n - 1] = '\0';
+  }
+
+  return (dest);
+}                               /* End ink_strncat */
+
+/*---------------------------------------------------------------------------*
+
+  char *ink_string_concatenate_strings(char *dest, ...)
+
+  This routine concatenates a variable number of strings into the buffer
+  <dest>, returning the pointer to <dest>.  The sequence of strings must end
+  with NULL.
+
+ *---------------------------------------------------------------------------*/
+
+char *
+ink_string_concatenate_strings(char *dest, ...)
+{
+  va_list ap;
+  char *s, *d;
+
+  va_start(ap, dest);
+
+  d = dest;
+
+  while (1) {
+    s = va_arg(ap, char *);
+    if (s == NULL)
+      break;
+
+    while (*s)
+      *d++ = *s++;
+  }
+  *d++ = '\0';
+  va_end(ap);
+  return (dest);
+}                               /* End ink_string_concatenate_strings */
+
+
+/*---------------------------------------------------------------------------*
+
+  char *ink_string_concatenate_strings_n(char *dest, int n, ...)
+
+  This routine concatenates a variable number of strings into the buffer
+  <dest>, returning the pointer to <dest>.  The sequence of strings must end
+  with NULL.  A NUL will always be placed after <dest>, and no more than
+  <n> - 1 characters will ever be written to <dest>.
+
+ *---------------------------------------------------------------------------*/
+
+char *
+ink_string_concatenate_strings_n(char *dest, int n, ...)
+{
+  va_list ap;
+  char *s, *d;
+
+  va_start(ap, n);
+
+  d = dest;
+
+  while (n > 1) {
+    s = va_arg(ap, char *);
+    if (s == NULL)
+      break;
+    while (*s && (n > 1)) {
+      *d++ = *s++;
+      n--;
+    }
+  }
+  if (n >= 1)
+    *d = '\0';
+  va_end(ap);
+  return (dest);
+}                               /* End ink_string_concatenate_strings_n */
+
+
+/*---------------------------------------------------------------------------*
+
+  char *ink_string_append(char *dest, char *src, int n)
+
+  This routine appends <src> to the end of <dest>, but it insures the
+  string pointed to by <dest> never grows beyond <n> characters, including
+  the terminating NUL.  A NUL is always written if n > 0.
+
+ *---------------------------------------------------------------------------*/
+
+char *
+ink_string_append(char *dest, char *src, int n)
+{
+  char *d, *s, *last_valid_char;
+
+  ink_assert(src != NULL);
+  ink_assert(dest != NULL);
+  ink_assert(n >= 0);
+
+  if (n == 0)
+    return (dest);
+
+  last_valid_char = dest + n - 1;
+
+  /* Scan For End Of Dest */
+
+  for (d = dest; (d <= last_valid_char) && (*d != '\0'); d++);
+
+  /* If At End Of String, NUL Terminate & Exit */
+
+  if (d > last_valid_char) {
+    dest[n - 1] = '\0';
+    return (dest);
+  }
+
+  /* Append src To String */
+
+  s = src;
+  while ((d < last_valid_char) && (*s != '\0'))
+    *d++ = *s++;
+
+  /* If At End Of String, NUL Terminate & Exit */
+
+  if (d > last_valid_char)
+    dest[n - 1] = '\0';
+  else
+    *d = '\0';
+
+  return (dest);
+}                               /* End ink_string_append */
+
+
+#if !HAVE_STRLCPY
+size_t
+ink_strlcpy(char *dst, const char *src, size_t siz)
+{
+  char *d = dst;
+  const char *s = src;
+  size_t n = siz;
+
+  /* Copy as many bytes as will fit */
+  if (n != 0) {
+    while (--n != 0) {
+      if ((*d++ = *s++) == '\0')
+        break;
+    }
+  }
+
+  /* Not enough room in dst, add NUL and traverse rest of src */
+  if (n == 0) {
+    if (siz != 0)
+                            *d = '\0';      /* NUL-terminate dst */
+    while (*s++)
+      ;
+  }
+
+  return (s - src - 1);   /* count does not include NUL */
+}
+#endif
+
+#if !HAVE_STRLCAT
+size_t
+ink_strlcat(char *dst, const char *src, size_t siz)
+{
+  char *d = dst;
+  const char *s = src;
+  size_t n = siz;
+  size_t dlen;
+
+  /* Find the end of dst and adjust bytes left but don't go past end */
+  while (n-- != 0 && *d != '\0')
+    d++;
+  dlen = d - dst;
+  n = siz - dlen;
+
+  if (n == 0)
+    return (dlen + strlen(s));
+  while (*s != '\0') {
+    if (n != 1) {
+      *d++ = *s;
+      n--;
+    }
+    s++;
+  }
+  *d = '\0';
+
+  return (dlen + (s - src));  /* count does not include NUL */
+}
+#endif
+
diff --git a/lib/ts/ink_string.h b/lib/ts/ink_string.h
new file mode 100644
index 00000000..7048ada7
--- /dev/null
+++ b/lib/ts/ink_string.h
@@ -0,0 +1,457 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_string.h
+
+  String and text processing routines for libts
+
+ ****************************************************************************/
+
+#ifndef _ink_string_h_
+#define _ink_string_h_
+
+#include <stdio.h>
+#include <memory.h>
+#include <strings.h>
+
+#include "ink_assert.h"
+#include "ink_error.h"
+#include "ParseRules.h"
+#include "ink_apidefs.h"
+
+
+/*===========================================================================*
+
+                            Function Prototypes
+
+ *===========================================================================*/
+/* these are supposed to be fast */
+
+inkcoreapi char *ink_memcpy_until_char(char *dst, char *src, unsigned int n, unsigned char c);
+inkcoreapi char *ink_strncpy(char *dest, const char *src, int n);
+inkcoreapi char *ink_strncat(char *dest, const char *src, int n);
+inkcoreapi char *ink_string_concatenate_strings(char *dest, ...);
+inkcoreapi char *ink_string_concatenate_strings_n(char *dest, int n, ...);
+inkcoreapi char *ink_string_append(char *dest, char *src, int n);
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+#if HAVE_STRLCPY
+#define  ink_strlcpy strlcpy
+#else
+size_t ink_strlcpy(char *dst, const char *str, size_t siz);
+#endif
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+#if HAVE_STRLCAT
+#define  ink_strlcat strlcat
+#else
+size_t ink_strlcat(char *dst, const char *str, size_t siz);
+#endif
+
+inkcoreapi int ink_strcasecmp(const char *a, const char *b);
+inkcoreapi int ink_strncasecmp(const char *a, const char *b, unsigned int max);
+
+/* Convert from UTF-8 to latin-1/iso-8859-1.  This can be lossy. */
+void ink_utf8_to_latin1(const char *in, int inlen, char *out, int *outlen);
+
+/*===========================================================================*
+
+                             Inline Functions
+
+ *===========================================================================*/
+
+
+// inline int ptr_len_cmp(const char* p1, int l1, const char* p2, int l2)
+//
+//     strcmp() functionality for two ptr length pairs
+//
+inline int
+ptr_len_cmp(const char *p1, int l1, const char *p2, int l2)
+{
+  if (l1 == l2) {
+    return memcmp(p1, p2, l1);
+  } else if (l1 < l2) {
+    return -1;
+  } else {
+    return 1;
+  }
+}
+
+// inline int ptr_len_cmp(const char* p1, int l1, const char* p2, int l2)
+//
+//     strcasecmp() functionality for two ptr length pairs
+//
+inline int
+ptr_len_casecmp(const char *p1, int l1, const char *p2, int l2)
+{
+  if (l1 < l2) {
+    return -1;
+  } else if (l1 > l2) {
+    return 1;
+  }
+
+  while (l1) {
+    char p1c = ParseRules::ink_tolower(*p1);
+    char p2c = ParseRules::ink_tolower(*p2);
+
+    if (p1c != p2c) {
+      if (p1c > p2c) {
+        return 1;
+      } else {
+        return -1;
+      }
+    }
+
+    p1++;
+    p2++;
+    l1--;
+  }
+
+  return 0;
+}
+
+// inline const char* ptr_len_str(const char* p1, int l1, const char* str)
+//
+//   strstr() like functionality for the ptr, len pairs
+//
+inline const char *
+ptr_len_str(const char *p1, int l1, const char *str)
+{
+
+  if (str && str[0]) {
+    int str_index = 0;
+    const char *match_start = NULL;
+
+    while (l1 > 0) {
+      if (*p1 == str[str_index]) {
+
+        // If this is the start of a match,
+        //    record it;
+        if (str_index == 0) {
+          match_start = p1;
+        }
+        // Check to see if we are finished;
+        str_index++;
+        if (str[str_index] == '\0') {
+          return match_start;
+        }
+      } else if (str_index > 0) {
+        l1 += (p1 - match_start);
+        p1 = match_start;
+        str_index = 0;
+      }
+
+      p1++;
+      l1--;
+    }
+  }
+  return NULL;
+}
+
+// int ptr_len_ncmp(const char* p1, int l1, const char* str, int n) {
+//
+//    strncmp like functionality for comparing a ptr,len pair with
+//       a null terminated string for n chars
+//
+inline int
+ptr_len_ncmp(const char *p1, int l1, const char *str, int n)
+{
+
+
+  while (l1 > 0 && n > 0) {
+    if (*str == '\0') {
+      return 1;
+    }
+
+    char p1c = *p1;
+    char strc = *str;
+
+    if (p1c != strc) {
+      if (p1c > strc) {
+        return 1;
+      } else if (p1c < strc) {
+        return -1;
+      }
+    }
+
+    p1++;
+    l1--;
+    n--;
+    str++;
+  }
+
+  // If we've scanned our nchars, the match
+  //   otherwise we're here because str is longer
+  //   than p1
+
+  if (n == 0) {
+    return 0;
+  } else {
+    return -1;
+  }
+}
+
+
+// int ptr_len_ncasecmp(const char* p1, int l1, const char* str, int n) {
+//
+//    strncasecmp like functionality for comparing a ptr,len pair with
+//       a null terminated string for n chars
+//
+inline int
+ptr_len_ncasecmp(const char *p1, int l1, const char *str, int n)
+{
+
+
+  while (l1 > 0 && n > 0) {
+    if (*str == '\0') {
+      return 1;
+    }
+
+    char p1c = ParseRules::ink_tolower(*p1);
+    char strc = ParseRules::ink_tolower(*str);
+
+    if (p1c != strc) {
+      if (p1c > strc) {
+        return 1;
+      } else if (p1c < strc) {
+        return -1;
+      }
+    }
+
+    p1++;
+    l1--;
+    n--;
+    str++;
+  }
+
+  // If we've scanned our nchars, the match
+  //   otherwise we're here because str is longer
+  //   than p1
+
+  if (n == 0) {
+    return 0;
+  } else {
+    return -1;
+  }
+}
+
+// int ptr_len_casecmp(const char* p1, int l1, const char* str) {
+//
+//    strcasecmp like functionality for comparing a ptr,len pair with
+//       a null terminated string
+//
+inline int
+ptr_len_casecmp(const char *p1, int l1, const char *str)
+{
+
+  while (l1 > 0) {
+    if (*str == '\0') {
+      return 1;
+    }
+
+    char p1c = ParseRules::ink_tolower(*p1);
+    char strc = ParseRules::ink_tolower(*str);
+
+    if (p1c != strc) {
+      if (p1c > strc) {
+        return 1;
+      } else if (p1c < strc) {
+        return -1;
+      }
+    }
+
+    p1++;
+    l1--;
+    str++;
+  }
+
+  // Since we're out of characters in p1
+  //   str needs to be finished for the strings
+  //   to get equal
+  if (*str == '\0') {
+    return 0;
+  } else {
+    return -1;
+  }
+}
+
+
+// int ptr_len_cmp(const char* p1, int l1, const char* str) {
+//
+//    strcmp like functionality for comparing a ptr,len pair with
+//       a null terminated string
+//
+inline int
+ptr_len_cmp(const char *p1, int l1, const char *str)
+{
+
+  while (l1 > 0) {
+    if (*str == '\0') {
+      return 1;
+    }
+
+    char p1c = *p1;
+    char strc = *str;
+
+    if (p1c != strc) {
+      if (p1c > strc) {
+        return 1;
+      } else if (p1c < strc) {
+        return -1;
+      }
+    }
+
+    p1++;
+    l1--;
+    str++;
+  }
+
+  // Since we're out of characters in p1
+  //   str needs to be finished for the strings
+  //   to get equal
+  if (*str == '\0') {
+    return 0;
+  } else {
+    return -1;
+  }
+}
+
+// char* ptr_len_pbrk(const char* p1, int l1, const char* str)
+//
+//   strpbrk() like functionality for ptr & len pair strings
+//
+inline char *
+ptr_len_pbrk(const char *p1, int l1, const char *str)
+{
+  while (l1 > 0) {
+    const char *str_cur = str;
+
+    while (*str_cur != '\0') {
+      if (*p1 == *str_cur) {
+        return (char *) p1;
+      }
+      str_cur++;
+    }
+
+    p1++;
+    l1--;
+  }
+
+  return NULL;
+}
+
+// Specialized "itoa", that is optimized for small integers, and use snprintf() otherwise.
+// On error, we'll return 0, and nothing is written to the buffer.
+// TODO: Do these really need to be inline?
+inline int
+ink_small_itoa(int val, char* buf, int buf_len)
+{
+  ink_assert(buf_len > 5);
+  ink_assert((val >= 0) && (val < 100000));
+
+  if (val < 10) {               // 0 - 9
+    buf[0] = '0' + val;
+    return 1;
+  } else if (val < 100) {       // 10 - 99
+    buf[1] = '0' + (val % 10);
+    val /= 10;
+    buf[0] = '0' + (val % 10);
+    return 2;
+  } else if (val < 1000) {      // 100 - 999
+    buf[2] = '0' + (val % 10);
+    val /= 10;
+    buf[1] = '0' + (val % 10);
+    val /= 10;
+    buf[0] = '0' + (val % 10);
+    return 3;
+  } else if (val < 10000) {     // 1000 - 9999
+    buf[3] = '0' + (val % 10);
+    val /= 10;
+    buf[2] = '0' + (val % 10);
+    val /= 10;
+    buf[1] = '0' + (val % 10);
+    val /= 10;
+    buf[0] = '0' + (val % 10);
+    return 4;
+  } else {                      // 10000 - 99999
+    buf[4] = '0' + (val % 10);
+    val /= 10;
+    buf[3] = '0' + (val % 10);
+    val /= 10;
+    buf[2] = '0' + (val % 10);
+    val /= 10;
+    buf[1] = '0' + (val % 10);
+    val /= 10;
+    buf[0] = '0' + (val % 10);
+    return 5;
+  }
+}
+
+inline int
+ink_fast_itoa(int32_t val, char* buf, int buf_len)
+{
+  if ((val < 0) || (val > 99999)) {
+    int ret = snprintf(buf, buf_len, "%d", val);
+
+    return (ret >= 0 ? ret : 0);
+  }
+
+  return ink_small_itoa((int)val, buf, buf_len);
+}
+
+inline int
+ink_fast_uitoa(uint32_t val, char* buf, int buf_len)
+{
+  if (val > 99999) {
+    int ret = snprintf(buf, buf_len, "%u", val);
+
+    return (ret >= 0 ? ret : 0);
+  }
+
+  return ink_small_itoa((int)val, buf, buf_len);
+}
+
+inline int
+ink_fast_ltoa(int64_t val, char* buf, int buf_len)
+{
+  if ((val < 0) || (val > 99999)) {
+    int ret = snprintf(buf, buf_len, "%" PRId64 "", val);
+
+    return (ret >= 0 ? ret : 0);
+  }
+
+  return ink_small_itoa((int)val, buf, buf_len);
+}
+
+#endif
diff --git a/lib/ts/ink_sys_control.cc b/lib/ts/ink_sys_control.cc
new file mode 100644
index 00000000..d04d2f46
--- /dev/null
+++ b/lib/ts/ink_sys_control.cc
@@ -0,0 +1,65 @@
+/** @file
+
+  This file produces Unicorns and Rainbows for the ATS community
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_sys_control.h"
+#include "ink_platform.h"
+#include "ink_assert.h"
+
+rlim_t
+ink_max_out_rlimit(int which, bool max_it, bool unlim_it)
+{
+  struct rlimit rl;
+
+#if defined(linux)
+#  define MAGIC_CAST(x) (enum __rlimit_resource)(x)
+#else
+#  define MAGIC_CAST(x) x
+#endif
+
+  if (max_it) {
+    ink_release_assert(getrlimit(MAGIC_CAST(which), &rl) >= 0);
+    if (rl.rlim_cur != rl.rlim_max) {
+#if defined(darwin)
+      if (which == RLIMIT_NOFILE)
+        rl.rlim_cur = fmin(OPEN_MAX, rl.rlim_max);
+      else
+        rl.rlim_cur = rl.rlim_max;
+#else
+      rl.rlim_cur = rl.rlim_max;
+#endif
+      ink_release_assert(setrlimit(MAGIC_CAST(which), &rl) >= 0);
+    }
+  }
+
+#if !defined(darwin)
+  if (unlim_it) {
+    ink_release_assert(getrlimit(MAGIC_CAST(which), &rl) >= 0);
+    if (rl.rlim_cur != (rlim_t)RLIM_INFINITY) {
+      rl.rlim_cur = (rl.rlim_max = RLIM_INFINITY);
+      ink_release_assert(setrlimit(MAGIC_CAST(which), &rl) >= 0);
+    }
+  }
+#endif
+  ink_release_assert(getrlimit(MAGIC_CAST(which), &rl) >= 0);
+  return rl.rlim_cur;
+}
diff --git a/lib/ts/ink_sys_control.h b/lib/ts/ink_sys_control.h
new file mode 100644
index 00000000..ad562d7a
--- /dev/null
+++ b/lib/ts/ink_sys_control.h
@@ -0,0 +1,40 @@
+/** @file
+
+  This file produces Unicorns and Rainbows for the ATS community
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _INK_SYS_CONTROL_H
+#define _INK_SYS_CONTROL_H
+
+#include <sys/resource.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+rlim_t ink_max_out_rlimit(int which, bool max_it=true, bool unlim_it=true);
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+
+#endif /*_INK_SYS_CONTROL_H*/
diff --git a/lib/ts/ink_syslog.cc b/lib/ts/ink_syslog.cc
new file mode 100644
index 00000000..e8e637c8
--- /dev/null
+++ b/lib/ts/ink_syslog.cc
@@ -0,0 +1,84 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+/****************************************************************************
+ *
+ *  ink_syslog.cc
+ *
+ *
+ ****************************************************************************/
+#include "libts.h"
+
+struct syslog_fac
+{
+  char *long_str;
+  char *short_str;
+  int fac_int;
+};
+
+static const syslog_fac convert_table[] = {
+  {(char *) "LOG_KERN", (char *) "KERN", LOG_KERN},
+  {(char *) "LOG_USER", (char *) "USER", LOG_USER},
+  {(char *) "LOG_MAIL", (char *) "MAIL", LOG_MAIL},
+  {(char *) "LOG_DAEMON", (char *) "DAEMON", LOG_DAEMON},
+  {(char *) "LOG_AUTH", (char *) "AUTH", LOG_AUTH},
+  {(char *) "LOG_LPR", (char *) "LPR", LOG_LPR},
+  {(char *) "LOG_NEWS", (char *) "NEWS", LOG_NEWS},
+  {(char *) "LOG_UUCP", (char *) "UUCP", LOG_UUCP},
+  {(char *) "LOG_CRON", (char *) "CRON", LOG_CRON},
+  {(char *) "LOG_LOCAL0", (char *) "LOCAL0", LOG_LOCAL0},
+  {(char *) "LOG_LOCAL1", (char *) "LOCAL1", LOG_LOCAL1},
+  {(char *) "LOG_LOCAL2", (char *) "LOCAL2", LOG_LOCAL2},
+  {(char *) "LOG_LOCAL3", (char *) "LOCAL3", LOG_LOCAL3},
+  {(char *) "LOG_LOCAL4", (char *) "LOCAL4", LOG_LOCAL4},
+  {(char *) "LOG_LOCAL5", (char *) "LOCAL5", LOG_LOCAL5},
+  {(char *) "LOG_LOCAL6", (char *) "LOCAL6", LOG_LOCAL6},
+  {(char *) "LOG_LOCAL7", (char *) "LOCAL7", LOG_LOCAL7},
+  {(char *) "INVALID_LOG_FAC", (char *) "INVALID", -1}
+};
+static const int convert_table_size = sizeof(convert_table) / sizeof(syslog_fac) - 1;
+
+// int facility_string_to_int(const char* str)
+//   Converts a string for a syslog to an int for that
+//    facility, suitable for passing to openlog()
+//
+//   If the string can not be converted, returns
+//    a negative value
+//
+int
+facility_string_to_int(const char *str)
+{
+
+  if (str == NULL) {
+    return -1;
+  }
+  // Loop Through to see if the string has a valid conversion
+  for (int i = 0; i < convert_table_size; i++) {
+    if (strcasecmp(convert_table[i].long_str, str) == 0 || strcasecmp(convert_table[i].short_str, str) == 0) {
+      return convert_table[i].fac_int;
+    }
+
+  }
+  return -1;
+}
diff --git a/lib/ts/ink_syslog.h b/lib/ts/ink_syslog.h
new file mode 100644
index 00000000..450a08a7
--- /dev/null
+++ b/lib/ts/ink_syslog.h
@@ -0,0 +1,37 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+/****************************************************************************
+ *
+ *  ink_syslog.h
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _INK_SYSLOG_H_
+#define _INK_SYSLOG_H_
+
+int facility_string_to_int(const char *str);
+
+#endif
diff --git a/lib/ts/ink_thread.cc b/lib/ts/ink_thread.cc
new file mode 100644
index 00000000..9ff8d08d
--- /dev/null
+++ b/lib/ts/ink_thread.cc
@@ -0,0 +1,39 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+
+  ink_thread.cc
+
+  Generic threads interface.
+**************************************************************************/
+
+#include "libts.h"
+
+// // ignore the compiler warning... so that this can be used
+// // in the face of changes to the Solaris header files (see "man thread")
+//
+// ink_mutex ink_mutex_initializer = INK_MUTEX_INIT;
+//
+// Put a bracketed initializer in ink_thread.h --- 9/19/96, bri
+ink_mutex ink_mutex_initializer = INK_MUTEX_INIT;
diff --git a/lib/ts/ink_thread.h b/lib/ts/ink_thread.h
new file mode 100644
index 00000000..2778a050
--- /dev/null
+++ b/lib/ts/ink_thread.h
@@ -0,0 +1,329 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  Generic threads interface
+
+**************************************************************************/
+
+#ifndef _INK_THREAD_H
+#define _INK_THREAD_H
+
+
+#include "ink_hrtime.h"
+#include "ink_defs.h"
+#include <sched.h>
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      The POSIX threads interface
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#if defined(POSIX_THREAD)
+#include <pthread.h>
+#include <signal.h>
+#include <semaphore.h>
+
+#if HAVE_PTHREAD_NP_H
+#include <pthread_np.h>
+#endif
+
+#define INK_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
+
+typedef pthread_t ink_thread;
+typedef pthread_cond_t ink_cond;
+typedef sem_t ink_sem;
+typedef pthread_key_t ink_thread_key;
+#endif /* #if defined(POSIX_THREAD) */
+
+/*******************************************************************
+ *** Condition variables
+ ******************************************************************/
+
+#ifdef POSIX_THREAD_10031c
+typedef struct timespec ink_timestruc;
+#else
+typedef timestruc_t ink_timestruc;
+#endif
+
+#include "ink_mutex.h"
+#include <errno.h>
+#include "ink_assert.h"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      The POSIX threads interface
+//
+//////////////////////////////////////////////////////////////////////////////
+#if defined(POSIX_THREAD)
+
+static inline void
+ink_thread_key_create(ink_thread_key * key, void (*destructor) (void *value))
+{
+  ink_assert(!pthread_key_create(key, destructor));
+}
+
+static inline void
+ink_thread_setspecific(ink_thread_key key, void *value)
+{
+  ink_assert(!pthread_setspecific(key, value));
+}
+
+static inline void *
+ink_thread_getspecific(ink_thread_key key)
+{
+  return pthread_getspecific(key);
+}
+
+static inline void
+ink_thread_key_delete(ink_thread_key key)
+{
+  ink_assert(!pthread_key_delete(key));
+}
+
+
+static inline ink_thread
+ink_thread_create(void *(*f) (void *), void *a, int detached = 0, size_t stacksize = 0)
+{
+  ink_thread t;
+  int ret;
+  pthread_attr_t attr;
+
+  pthread_attr_init(&attr);
+  pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
+
+  if (stacksize) {
+    pthread_attr_setstacksize(&attr, stacksize);
+  }
+
+  if (detached) {
+    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+  }
+
+  ret = pthread_create(&t, &attr, f, a);
+  ink_assert(ret == 0);
+  pthread_attr_destroy(&attr);
+
+  /**
+   * Fix for INKqa10118.
+   * If the thread has not been created successfully return 0.
+   */
+  return ret ? (ink_thread) 0 : t;
+}
+
+static inline void
+ink_thread_cancel(ink_thread who)
+{
+#if defined(freebsd)
+  (void) who;
+  ink_assert(!"not supported");
+#else
+  int ret = pthread_cancel(who);
+  ink_assert(ret == 0);
+#endif
+}
+
+static inline void *
+ink_thread_join(ink_thread t)
+{
+  void *r;
+  ink_assert(!pthread_join(t, &r));
+  return r;
+}
+
+static inline ink_thread
+ink_thread_self()
+{
+  return (pthread_self());
+}
+
+static inline int
+ink_thread_get_priority(ink_thread t, int *priority)
+{
+#if defined(freebsd)
+  (void) t;
+  (void) priority;
+  ink_assert(!"not supported");
+  return -1;
+#else
+  int policy;
+  struct sched_param param;
+  int res = pthread_getschedparam(t, &policy, &param);
+  *priority = param.sched_priority;
+  return res;
+#endif
+}
+
+static inline int
+ink_thread_sigsetmask(int how, const sigset_t * set, sigset_t * oset)
+{
+  return (pthread_sigmask(how, set, oset));
+}
+
+/*******************************************************************
+ * Posix Semaphores
+ ******************************************************************/
+static inline void
+ink_sem_init(ink_sem * sp, unsigned int count)
+{
+  ink_assert(!sem_init(sp, 0, count));
+}
+
+static inline void
+ink_process_sem_init(ink_sem * sp, unsigned int count)
+{
+  ink_assert(!sem_init(sp, 1, count));
+}
+
+static inline void
+ink_sem_wait(ink_sem * sp)
+{
+  int r;
+  while (EINTR == (r = sem_wait(sp)));
+  ink_assert(!r);
+}
+
+static inline int
+ink_sem_trywait(ink_sem * sp)
+{
+  int r;
+  while (EINTR == (r = sem_trywait(sp)));
+  ink_assert(!r || (r == EAGAIN));
+  return (r);
+}
+
+static inline void
+ink_sem_post(ink_sem * sp)
+{
+  ink_assert(!sem_post(sp));
+}
+
+static inline void
+ink_sem_destroy(ink_sem * sp)
+{
+  ink_assert(!sem_destroy(sp));
+}
+
+#if defined(darwin)
+static inline ink_sem *
+ink_sem_open(const char *name , int oflag, mode_t mode, unsigned int value)
+{
+  ink_sem *sptr;
+  sptr = sem_open(name, oflag, mode, value);
+  ink_assert(sptr != SEM_FAILED);
+  return sptr;
+}
+
+static inline void
+ink_sem_close(ink_sem * sp)
+{
+  ink_assert(!sem_close(sp));
+}
+
+static inline int
+ink_sem_unlink(const char *name)
+{
+  return sem_unlink(name);
+}
+#endif /* darwin */
+
+/*******************************************************************
+ * Posix Condition Variables
+ ******************************************************************/
+
+static inline void
+ink_cond_init(ink_cond * cp)
+{
+  ink_assert(pthread_cond_init(cp, NULL) == 0);
+}
+
+static inline void
+ink_cond_destroy(ink_cond * cp)
+{
+  ink_assert(pthread_cond_destroy(cp) == 0);
+}
+
+static inline void
+ink_cond_wait(ink_cond * cp, ink_mutex * mp)
+{
+  ink_assert(pthread_cond_wait(cp, mp) == 0);
+}
+static inline int
+ink_cond_timedwait(ink_cond * cp, ink_mutex * mp, ink_timestruc * t)
+{
+  int err;
+  while (EINTR == (err = pthread_cond_timedwait(cp, mp, t)));
+#if defined(freebsd) || defined(openbsd)
+  ink_assert((err == 0) || (err == ETIMEDOUT));
+#else
+  ink_assert((err == 0) || (err == ETIME) || (err == ETIMEDOUT));
+#endif
+  return err;
+}
+
+static inline void
+ink_cond_signal(ink_cond * cp)
+{
+  ink_assert(pthread_cond_signal(cp) == 0);
+}
+
+static inline void
+ink_cond_broadcast(ink_cond * cp)
+{
+  ink_assert(pthread_cond_broadcast(cp) == 0);
+}
+
+static inline void
+ink_thr_yield()
+{
+  ink_assert(!sched_yield());
+}
+
+static inline void
+ink_thread_exit(void *status)
+{
+  pthread_exit(status);
+}
+
+// This define is from Linux's <sys/prctl.h> and is most likely very
+// Linux specific... Feel free to add support for other platforms
+// that has a feature to give a thread specific name / tag.
+static inline void
+ink_set_thread_name(const char* name ATS_UNUSED)
+{
+#if defined(HAVE_PTHREAD_SETNAME_NP_1)
+  pthread_setname_np(name);
+#elif defined(HAVE_PTHREAD_SETNAME_NP_2)
+  pthread_setname_np(pthread_self(), name);
+#elif defined(HAVE_PTHREAD_SET_NAME_NP_2)
+  pthread_set_name_np(pthread_self(), name);
+#elif defined(HAVE_SYS_PRCTL_H) && defined(PR_SET_NAME)
+  prctl(PR_SET_NAME, name, 0, 0, 0);
+#endif
+}
+
+#endif /* #if defined(POSIX_THREAD) */
+
+#endif /*_INK_THREAD_H*/
diff --git a/lib/ts/ink_time.cc b/lib/ts/ink_time.cc
new file mode 100644
index 00000000..a40b9f40
--- /dev/null
+++ b/lib/ts/ink_time.cc
@@ -0,0 +1,184 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+  ink_time.c
+
+  Timing routines for libts
+
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_time.h"
+#include "ink_assert.h"
+#include "ink_string.h"
+
+#include <locale.h>
+#include <sys/resource.h>
+
+/*===========================================================================*
+
+                                  Timers
+
+ *===========================================================================*/
+
+/*---------------------------------------------------------------------------*
+  uint64_t microseconds(which)
+
+  returns microsecond-resolution clock info
+ *---------------------------------------------------------------------------*/
+
+uint64_t
+ink_microseconds(int which)
+{
+  struct timeval tp;
+  struct rusage ru;
+
+  switch (which) {
+  case MICRO_REAL:
+    gettimeofday(&tp, NULL);
+    break;
+  case MICRO_USER:
+    getrusage(RUSAGE_SELF, &ru);
+    tp = ru.ru_utime;
+    break;
+  case MICRO_SYS:
+    getrusage(RUSAGE_SELF, &ru);
+    tp = ru.ru_stime;
+    break;
+  default:
+    return 0;
+  }
+
+  return tp.tv_sec * 1000000 + tp.tv_usec;
+}
+
+/*---------------------------------------------------------------------------*
+
+  double ink_time_wall_seconds()
+
+  This routine returns a double precision number of wall clock seconds
+  elapsed since some fixed time in the past.
+
+ *---------------------------------------------------------------------------*/
+double
+ink_time_wall_seconds()
+{
+
+  struct timeval s_val;
+
+  gettimeofday(&s_val, 0);
+  return ((double) s_val.tv_sec + 0.000001 * s_val.tv_usec);
+}                               /* End ink_time_wall_seconds */
+
+
+struct dtconv
+{
+  char *abbrev_month_names[12];
+  char *month_names[12];
+  char *abbrev_weekday_names[7];
+  char *weekday_names[7];
+  char *time_format;
+  char *sdate_format;
+  char *dtime_format;
+  char *am_string;
+  char *pm_string;
+  char *ldate_format;
+};
+
+
+
+/*
+ * The man page for cftime lies. It claims that it is thread safe.
+ * Instead, it silently trashes the heap (by freeing things more than
+ * once) when used in a mulithreaded program. Gack!
+ */
+int
+cftime_replacement(char *s, int maxsize, const char *format, const time_t * clock)
+{
+  struct tm tm;
+
+  ink_assert(ink_localtime_r(clock, &tm) != NULL);
+
+  return strftime(s, maxsize, format, &tm);
+}
+
+#undef cftime
+/* Throw an error if they ever call plain-old cftime. */
+int
+cftime(char *s, char *format, const time_t * clock)
+{
+  (void) s;
+  (void) format;
+  (void) clock;
+  printf("ERROR cftime is not thread safe -- call cftime_replacement\n");
+  ink_assert(!"cftime");
+  return 0;
+}
+
+#define DAYS_OFFSET  25508
+
+ink_time_t
+convert_tm(const struct tm * tp)
+{
+  static const int days[12] = {
+    305, 336, -1, 30, 60, 91, 121, 152, 183, 213, 244, 274
+  };
+
+  ink_time_t t;
+  int year;
+  int month;
+  int mday;
+
+  year = tp->tm_year;
+  month = tp->tm_mon;
+  mday = tp->tm_mday;
+
+  /* what should we do? */
+  if ((year<70) || (year> 137))
+    return (ink_time_t) UNDEFINED_TIME;
+
+  mday += days[month];
+  /* month base == march */
+  if (month < 2)
+    year -= 1;
+  mday += (year * 365) + (year / 4) - (year / 100) + (year / 100 + 3) / 4;
+  mday -= DAYS_OFFSET;
+
+  t = ((mday * 24 + tp->tm_hour) * 60 + tp->tm_min) * 60 + tp->tm_sec;
+
+  return t;
+}
+
+char *
+ink_ctime_r(const ink_time_t * clock, char *buf)
+{
+  return ctime_r(clock, buf);
+}
+
+struct tm *
+ink_localtime_r(const ink_time_t * clock, struct tm *res)
+{
+  return localtime_r(clock, res);
+}
diff --git a/lib/ts/ink_time.h b/lib/ts/ink_time.h
new file mode 100644
index 00000000..04d3b1a9
--- /dev/null
+++ b/lib/ts/ink_time.h
@@ -0,0 +1,95 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ink_time.h
+
+  Timing routines for libts
+
+
+
+ ****************************************************************************/
+
+#ifndef _ink_time_h_
+#define	_ink_time_h_
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_hrtime.h"
+
+/*===========================================================================*
+
+                                 Data Types
+
+ *===========================================================================*/
+
+typedef time_t ink_time_t;
+
+/*===========================================================================*
+
+                                 Prototypes
+
+ *===========================================================================*/
+
+#define MICRO_USER 1
+#define MICRO_SYS 2
+#define MICRO_REAL 3
+#define UNDEFINED_TIME ((time_t)0)
+
+uint64_t ink_microseconds(int which);
+double ink_time_wall_seconds();
+
+int cftime_replacement(char *s, int maxsize, const char *format, const time_t * clock);
+#define cftime(s, format, clock) cftime_replacement(s, 8192, format, clock)
+
+ink_time_t convert_tm(const struct tm *tp);
+
+inkcoreapi char *ink_ctime_r(const ink_time_t * clock, char *buf);
+inkcoreapi struct tm *ink_localtime_r(const ink_time_t * clock, struct tm *res);
+
+/*===========================================================================*
+                              Inline Stuffage
+ *===========================================================================*/
+#if defined(freebsd) || defined(openbsd)
+
+inline int
+ink_timezone()
+{
+  struct timeval tp;
+  struct timezone tzp;
+  ink_assert(!gettimeofday(&tp, &tzp));
+  return tzp.tz_minuteswest * 60;
+}
+
+#else  // non-freebsd, non-openbsd for the else
+
+inline int
+ink_timezone()
+{
+  return timezone;
+}
+
+#endif /* #if defined(freebsd) || defined(openbsd) */
+
+#endif /* #ifndef _ink_time_h_ */
diff --git a/lib/ts/libts.h b/lib/ts/libts.h
new file mode 100644
index 00000000..aa19d40e
--- /dev/null
+++ b/lib/ts/libts.h
@@ -0,0 +1,104 @@
+/** @file
+
+  Primary include file for the libts C++ library
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  libts is a collection of useful functions and methods. It
+  includes commonly used:
+    - data structures like queues, dynamic arrays atomic queues, etc.
+    - string manipulation functions
+    - bit operation functions
+    - Fast-Allocators ...
+
+  The library provides a uniform interface on all platforms making the
+  job of porting the applications written using it very easy.
+
+ */
+
+#if !defined (_inktomiplus_h_)
+#define	_inktomiplus_h_
+
+/* Removed for now, to fix build on Solaris
+#define std *** _FIXME_REMOVE_DEPENDENCY_ON_THE_STL_ ***
+*/
+
+#include "ink_config.h"
+#include "ink_platform.h"
+#include "ink_align.h"
+#include "ink_apidefs.h"
+#include "ink_args.h"
+#include "ink_assert.h"
+#include "ink_atomic.h"
+#include "ink_base64.h"
+#include "ink_code.h"
+#include "ink_defs.h"
+#include "ink_error.h"
+#include "ink_exception.h"
+#include "ink_file.h"
+#include "ink_hash_table.h"
+#include "ink_hrtime.h"
+#include "ink_inout.h"
+#include "ink_llqueue.h"
+#include "ink_lockfile.h"
+#include "ink_memory.h"
+#include "ink_mutex.h"
+#include "ink_queue.h"
+#include "ink_rand.h"
+#include "ink_resolver.h"
+#include "ink_sock.h"
+#include "ink_inet.h"
+#include "ink_sprintf.h"
+#include "ink_stack_trace.h"
+#include "ink_string++.h"
+#include "ink_string.h"
+#include "ink_syslog.h"
+#include "ink_thread.h"
+#include "ink_time.h"
+#include "fastlz.h"
+
+#include "Allocator.h"
+#include "Arena.h"
+#include "Bitops.h"
+#include "Compatability.h"
+#include "DynArray.h"
+#include "EventNotify.h"
+#include "I_Version.h"
+#include "InkPool.h"
+#include "List.h"
+#include "INK_MD5.h"
+#include "Map.h"
+#include "MimeTable.h"
+#include "ParseRules.h"
+#include "Ptr.h"
+#include "RawHashTable.h"
+#include "Regex.h"
+#include "SimpleTokenizer.h"
+#include "TextBuffer.h"
+#include "Tokenizer.h"
+#include "MatcherUtils.h"
+#include "Diags.h"
+#include "Regression.h"
+#include "HostLookup.h"
+#include "InkErrno.h"
+#include "Vec.h"
+
+#endif /*_inktomiplus_h_*/
diff --git a/lib/ts/llqueue.cc b/lib/ts/llqueue.cc
new file mode 100644
index 00000000..4c200873
--- /dev/null
+++ b/lib/ts/llqueue.cc
@@ -0,0 +1,273 @@
+/** @file
+
+  Implementation of a simple linked list queue
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "ink_memory.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <limits.h>
+
+#include "ink_llqueue.h"
+#include "errno.h"
+
+#define RECORD_CHUNK 1024
+
+// These are obviously not used anywhere, I don't know if or how they
+// were supposed to work, but #ifdef'ing them out of here for now.
+#ifdef NOT_USED_HERE
+static LLQrec *
+newrec(LLQ * Q)
+{
+  LLQrec * new_val;
+  int i;
+
+  if (Q->free != NULL) {
+    new_val = Q->free;
+    Q->free = Q->free->next;
+    return new_val;
+  }
+
+  Q->free = (LLQrec *)ats_malloc(RECORD_CHUNK * sizeof(LLQrec));
+  for (i = 0; i < RECORD_CHUNK; i++)
+    Q->free[i].next = &Q->free[i + 1];
+
+  Q->free[RECORD_CHUNK - 1].next = NULL;
+
+
+  new_val = Q->free;
+  Q->free = Q->free->next;
+
+  return new_val;
+}
+
+// Not used either ...
+static void
+freerec(LLQ * Q, LLQrec * rec)
+{
+  rec->next = Q->free;
+  Q->free = rec;
+}
+#endif
+
+LLQ *
+create_queue()
+{
+  const char *totally_bogus_name = "create_queue";
+  LLQ * new_val = (LLQ *)ats_malloc(sizeof(LLQ));
+
+#if defined(darwin)
+  static int qnum = 0;
+  char sname[NAME_MAX];
+  qnum++;
+  snprintf(sname,NAME_MAX,"%s%d",totally_bogus_name,qnum);
+  ink_sem_unlink(sname); // FIXME: remove, semaphore should be properly deleted after usage
+  new_val->sema = ink_sem_open(sname, O_CREAT | O_EXCL, 0777, 0);
+#else /* !darwin */
+  ink_sem_init(&(new_val->sema), 0);
+#endif /* !darwin */
+  ink_mutex_init(&(new_val->mux), totally_bogus_name);
+
+  new_val->head = new_val->tail = new_val->free = NULL;
+  new_val->len = new_val->highwater = 0;
+
+  return new_val;
+}
+
+// matching delete function, only for empty queue!
+void
+delete_queue(LLQ * Q)
+{
+  // There seems to have been some ideas of making sure that this queue is
+  // actually empty ...
+  //
+  //    LLQrec * qrec;
+  ats_free(Q);
+  return;
+}
+
+int
+enqueue(LLQ * Q, void *data)
+{
+  LLQrec * new_val;
+
+  ink_mutex_acquire(&(Q->mux));
+  new_val = (LLQrec *)ats_malloc(sizeof(LLQrec));
+  new_val->data = data;
+  new_val->next = NULL;
+
+  if (Q->tail)
+    Q->tail->next = new_val;
+  Q->tail = new_val;
+
+  if (Q->head == NULL)
+    Q->head = Q->tail;
+
+  Q->len++;
+  if (Q->len > Q->highwater)
+    Q->highwater = Q->len;
+  ink_mutex_release(&(Q->mux));
+#if defined(darwin)
+  ink_sem_post(Q->sema);
+#else
+  ink_sem_post(&(Q->sema));
+#endif
+  return 1;
+}
+
+uint64_t
+queue_len(LLQ * Q)
+{
+  uint64_t len;
+
+  /* Do I really need to grab the lock here? */
+  /* ink_mutex_acquire(&(Q->mux)); */
+  len = Q->len;
+  /* ink_mutex_release(&(Q->mux)); */
+  return len;
+}
+
+uint64_t
+queue_highwater(LLQ * Q)
+{
+  uint64_t highwater;
+
+  /* Do I really need to grab the lock here? */
+  /* ink_mutex_acquire(&(Q->mux)); */
+  highwater = Q->highwater;
+  /* ink_mutex_release(&(Q->mux)); */
+  return highwater;
+}
+
+
+
+/*
+ *---------------------------------------------------------------------------
+ *
+ * queue_is_empty
+ *
+ *  Is the queue empty?
+ *
+ * Results:
+ *  nonzero if empty, zero else.
+ *
+ * Side Effects:
+ *  none.
+ *
+ * Reentrancy:     n/a.
+ * Thread Safety:  safe.
+ * Mem Management: n/a.
+ *
+ *---------------------------------------------------------------------------
+ */
+int
+queue_is_empty(LLQ * Q)
+{
+  uint64_t len;
+
+  len = queue_len(Q);
+
+  if (len)
+    return 0;
+  else
+    return 1;
+}
+
+void *
+dequeue(LLQ * Q)
+{
+  LLQrec * rec;
+  void *d;
+#if defined(darwin)
+  ink_sem_wait(Q->sema);
+#else
+  ink_sem_wait(&(Q->sema));
+#endif
+  ink_mutex_acquire(&(Q->mux));
+
+
+  if (Q->head == NULL) {
+
+    ink_mutex_release(&(Q->mux));
+
+    return NULL;
+  }
+
+  rec = Q->head;
+
+  Q->head = Q->head->next;
+  if (Q->head == NULL)
+    Q->tail = NULL;
+
+  d = rec->data;
+//freerec(Q, rec);
+  ats_free(rec);
+
+  Q->len--;
+  ink_mutex_release(&(Q->mux));
+
+  return d;
+}
+
+
+
+#ifdef LLQUEUE_MAIN
+
+void *
+testfun(void *unused)
+{
+  int num;
+  LLQ *Q;
+
+  Q = create_queue();
+  assert(Q);
+
+  do {
+    scanf("%d", &num);
+    if (num == 0) {
+      printf("DEQUEUE: %d\n", (int) dequeue(Q));
+    } else if (num == -1) {
+      printf("queue_is_empty: %d\n", queue_is_empty(Q));
+    } else {
+      printf("enqueue: %d\n", num);
+      enqueue(Q, (void *) num);
+    }
+  } while (num >= -1);
+
+  return NULL;
+}
+
+/*
+ * test harness-- hit Ctrl-C if it blocks or you get tired.
+ */
+void
+main()
+{
+  assert(thr_create(NULL, 0, testfun, (void *) NULL, THR_NEW_LWP, NULL) == 0);
+  while (1) {
+    ;
+  }
+}
+
+#endif
diff --git a/lib/ts/load_http_hdr.cc b/lib/ts/load_http_hdr.cc
new file mode 100644
index 00000000..2ea31a33
--- /dev/null
+++ b/lib/ts/load_http_hdr.cc
@@ -0,0 +1,436 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   load_http_hdr.cc
+
+   Description:
+
+   Opens a file with a dbx dump of an http hdr and prints it out
+
+
+ ****************************************************************************/
+
+#include "Marshal.h"
+#include "MIME.h"
+#include "HTTP.h"
+#include "Tokenizer.h"
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+enum hdr_type
+{
+  UNKNOWN_HDR,
+  REQUEST_HDR,
+  RESPONSE_HDR,
+  HTTP_INFO_HDR,
+  RAW_MBUFFER
+};
+
+void walk_mime_field(MIMEField f);
+void walk_mstring(MBuffer * bufp, int32_t offset);
+void walk_mbuffer(MBuffer * bufp);
+void print_http_info_impl(HTTPInfo hi);
+void print_http_hdr_impl(HTTPHdr h);
+
+void
+print_hdr(HTTPHdr to_print)
+{
+  char b[4096];
+  int used, tmp, offset;
+  int done;
+  offset = 0;
+  do {
+    used = 0;
+    tmp = offset;
+    done = to_print.print(b, 4095, &used, &tmp);
+    offset += used;
+    b[used] = '\0';
+    printf("%s", b);
+  } while (!done);
+}
+
+void
+dump_hdr(char *mbuf, hdr_type h_type)
+{
+  HTTPHdr to_dump;
+  HTTPInfo to_dump_info;
+
+  if (h_type == RESPONSE_HDR) {
+    to_dump.locate_resp(mbuf);
+    print_hdr(to_dump);
+  } else if (h_type == REQUEST_HDR) {
+    to_dump.locate_req(mbuf);
+    print_hdr(to_dump);
+  } else {
+    to_dump_info.locate(mbuf);
+
+    to_dump = to_dump_info.request_get();
+    if (to_dump.valid()) {
+      print_hdr(to_dump);
+    } else {
+      fprintf(stderr, "HttpInfo request invalid\n");
+    }
+
+    to_dump = to_dump_info.response_get();
+
+    if (to_dump.valid()) {
+      print_hdr(to_dump);
+    } else {
+      fprintf(stderr, "HttpInfo response invalid\n");
+    }
+  }
+}
+
+void
+load_buffer(int fd, hdr_type h_type)
+{
+
+  struct stat s_info;
+
+  if (fstat(fd, &s_info) < 0) {
+    fprintf(stderr, "Failed to stat data file : %s\n", strerror(errno));
+    exit(1);
+  }
+
+  char *file_buf = (char *)ats_malloc(sizeof(char) * (s_info.st_size + 1));
+  file_buf[s_info.st_size] = '\0';
+
+
+  // Read in the entire file
+  int bytes_to_read = s_info.st_size;
+  while (bytes_to_read > 0) {
+    int done = read(fd, file_buf, bytes_to_read);
+
+    if (done < 0) {
+      fprintf(stderr, "Failed to read data file : %s\n", strerror(errno));
+      exit(1);
+    } else if (done == 0) {
+      fprintf(stderr, "EOF encounted\n", strerror(errno));
+      exit(1);
+    }
+
+    bytes_to_read -= done;
+  }
+
+  Tokenizer line_tok("\n");
+  Tokenizer el_tok(" \t");
+
+
+  int num_lines = line_tok.Initialize(file_buf);
+  int num_el = el_tok.Initialize(line_tok[0]);
+
+  if (num_el < 3) {
+    fprintf(stderr, "Corrupted data file\n");
+    exit(1);
+  }
+
+  int mbuf_size, mbuf_length;
+  if (sscanf(el_tok[2], "%x", &mbuf_length) != 1) {
+    fprintf(stderr, "Corrupted data file\n");
+    exit(1);
+  }
+
+  mbuf_size = MARSHAL_DEFAULT_SIZE;
+  while (mbuf_size < mbuf_length) {
+    mbuf_size *= 2;
+  }
+
+  char *mbuf = (char *)ats_malloc(mbuf_size);
+  int bytes_read = 0;
+  int cur_line = 0;
+
+  while (cur_line < num_lines && bytes_read < mbuf_size) {
+
+    int *cur_ptr;
+    num_el = el_tok.Initialize(line_tok[cur_line]);
+
+    int el;
+    for (int i = 1; i < num_el; i++) {
+      if (sscanf(el_tok[i], "%x", &el) != 1) {
+        fprintf(stderr, "Corrupted data file\n");
+        exit(1);
+      }
+      cur_ptr = (int *) (mbuf + bytes_read);
+      *cur_ptr = el;
+      bytes_read += 4;
+    }
+    cur_line++;
+  }
+
+  if (bytes_read != mbuf_length) {
+    fprintf(stderr, "Size mismatch: read %d  mbuf_length %d  mbuf_size %d\n", bytes_read, mbuf_length, mbuf_size);
+//      exit(1);
+  }
+
+  /*
+     int raw_fd = open("foo", O_RDWR |O_CREAT | O_TRUNC );
+     if (raw_fd > 0) {
+     write(raw_fd, mbuf, mbuf_size);
+     close(raw_fd);
+     } else {
+     perror("open: ");
+     }
+   */
+
+  if (h_type == RAW_MBUFFER) {
+    MBuffer m_buf_struct;
+    memset(&m_buf_struct, 0, sizeof(MBuffer));
+    mbuffer_set(&m_buf_struct, mbuf);
+    m_buf_struct.m_ext_refcount = 1;
+    m_buf_struct.m_size = bytes_read;
+    walk_mbuffer(&m_buf_struct);
+  } else {
+    dump_hdr(mbuf, h_type);
+  }
+}
+
+int
+main(int argc, const char *argv[])
+{
+
+  hdr_type h_type = UNKNOWN_HDR;
+
+  http_init();
+  if (argc != 3) {
+    fprintf(stderr, "Usage: %s req|res <file>\n", argv[0]);
+    exit(1);
+  }
+
+  if (strcasecmp(argv[1], "req") == 0) {
+    h_type = REQUEST_HDR;
+  } else if (strcasecmp(argv[1], "resp") == 0) {
+    h_type = RESPONSE_HDR;
+  } else if (strcasecmp(argv[1], "hinfo") == 0) {
+    h_type = HTTP_INFO_HDR;
+  } else if (strcasecmp(argv[1], "mbuf") == 0) {
+    h_type = RAW_MBUFFER;
+  } else {
+    fprintf(stderr, "Usage: %s req|resp|hinfo|mbuf <file>\n", argv[0]);
+    exit(1);
+  }
+
+  int fd = open(argv[2], O_RDONLY);
+
+  if (fd < 0) {
+    fprintf(stderr, "Could not open file %s : %s\n", argv[2], strerror(errno));
+    exit(1);
+  }
+  load_buffer(fd, h_type);
+
+  return 0;
+}
+
+
+/*********************************************************************
+  Code for manual groking the mbuf objects
+*******************************************************************/
+
+//extern const char *marshal_strs[];
+
+char *marshal_type_strs[] = {
+  "EMPTY ",
+  "OBJ   ",
+  "STR   ",
+  "URL   ",
+  "URL_F ",
+  "URL_H ",
+  "M_VALS",
+  "M_FLD ",
+  "M_HDR ",
+  "H_HDR ",
+  "H_REQ ",
+  "H_RESP",
+  "H_INFO"
+};
+
+void
+walk_mbuffer(MBuffer * bufp)
+{
+  int offset = 3;
+  int max_offset = (*bufp->m_length) / 4;
+
+  do {
+    MObjectImpl *mo = (MObjectImpl *) mbuffer_get_obj(bufp, offset);
+    printf("offset %.3d  m_length %.2d  m_type %s     ", offset, (int) mo->m_length, marshal_type_strs[mo->type]);
+
+    switch ((int) mo->type) {
+    case MARSHAL_MIME_FIELD:
+      {
+        MIMEField f(bufp, offset);
+        walk_mime_field(f);
+        break;
+      }
+    case MARSHAL_STRING:
+      {
+        walk_mstring(bufp, offset);
+        printf("\n");
+        break;
+      }
+    case MARSHAL_HTTP_INFO:
+      {
+        HTTPInfo i(bufp, offset);
+        print_http_info_impl(i);
+        printf("\n");
+        break;
+      }
+    case MARSHAL_HTTP_HEADER:
+    case MARSHAL_HTTP_HEADER_REQ:
+    case MARSHAL_HTTP_HEADER_RESP:
+      {
+        HTTPHdr h(bufp, offset);
+        print_http_hdr_impl(h);
+        printf("\n");
+        break;
+      }
+
+
+    default:
+      printf("\n");
+    }
+
+    offset += mo->m_length;
+  } while (offset < max_offset);
+}
+
+void
+walk_mstring(MBuffer * bufp, int32_t offset)
+{
+  int bufindex = 0;
+  int dumpoffset = 0;
+  char fbuf[4096];
+
+//    int32_t soffset = field_offset;
+//    soffset <<= MARSHAL_ALIGNMENT;
+//    printf("offset: %d.  shifted field_offset: %d\n",
+//         field_offset, soffset);
+
+  memset(fbuf, 0, 4096);
+  mstring_print(bufp, offset, fbuf, 4095, &bufindex, &dumpoffset);
+
+  printf("%s", fbuf);
+}
+
+void
+walk_mime_field(MIMEField f)
+{
+
+  int bufindex = 0;
+  int dumpoffset = 0;
+  char fbuf[4096];
+
+//    int32_t soffset = field_offset;
+//    soffset <<= MARSHAL_ALIGNMENT;
+//    printf("offset: %d.  shifted field_offset: %d\n",
+//         field_offset, soffset);
+
+  MIMEFieldImpl *fi = MIMEFieldPtr(f.m_buffer, f.m_offset);
+  memset(fbuf, 0, 4096);
+  mime_field_print(f.m_buffer, f.m_offset, fbuf, 4095, &bufindex, &dumpoffset);
+
+  printf("(%d,%d) [%d,%d,%d] %s", (int) fi->m_nvalues, (int) fi->m_flags,
+         (int) fi->m_name_offset, (int) fi->m_values_offset, (int) fi->m_next_offset, fbuf);
+}
+
+void
+walk_http_resp_hdr(HTTPHdr resp)
+{
+  HTTPHdrImpl *r = HTTPHdrPtr(resp.m_buffer, resp.m_offset);
+
+  printf("Http Response Hdr\n");
+
+  if (r->type != MARSHAL_HTTP_HEADER_RESP) {
+    printf("Type match failed\n");
+    return;
+  }
+
+  int16_t field_offset = r->m_fields_offset;
+
+  while (field_offset != MARSHAL_NULL_OFFSET) {
+    MIMEFieldImpl *f = MIMEFieldPtr(resp.m_buffer, field_offset);
+
+    MIMEField field(resp.m_buffer, field_offset);
+    walk_mime_field(field);
+
+    field_offset = f->m_next_offset;
+  }
+}
+
+void
+walk_http_info(HTTPInfo hi)
+{
+  HTTPInfoImpl *info = HTTPInfoPtr(hi.m_buffer, hi.m_offset);
+
+  printf("HttpInfo\n");
+
+  if (info->type != MARSHAL_HTTP_INFO) {
+    printf("Type match failed\n");
+    return;
+  }
+
+  printf("id: %d  rid: %d\n", info->m_id, info->m_rid);
+  printf("Request Sent Time %s", ctime(&info->m_request_sent_time));
+  printf("Response Received Time %s\n", ctime(&info->m_response_received_time));
+  printf("Request Offset: %d   Response Offset: %d", info->m_request_offset, info->m_response_offset);
+}
+
+void
+print_http_info_impl(HTTPInfo hi)
+{
+  HTTPInfoImpl *info = HTTPInfoPtr(hi.m_buffer, hi.m_offset);
+
+  if (info->type != MARSHAL_HTTP_INFO) {
+    printf("Type match failed\n");
+    return;
+  }
+
+  printf("id: %d  rid: %d  req: %d  resp: %d",
+         info->m_id, info->m_rid, info->m_request_offset, info->m_response_offset);
+}
+
+void
+print_http_hdr_impl(HTTPHdr h)
+{
+  HTTPHdrImpl *hdr = HTTPHdrPtr(h.m_buffer, h.m_offset);
+
+  if (hdr->type == MARSHAL_HTTP_HEADER) {
+    printf("fields: %d", (int) hdr->m_fields_offset);
+    return;
+  } else if (hdr->type == MARSHAL_HTTP_HEADER_REQ) {
+    printf("method: %d  url: %d  fields: %d",
+           (int) hdr->u.req.m_method_offset, (int) hdr->u.req.m_url_offset, (int) hdr->m_fields_offset);
+  } else if (hdr->type == MARSHAL_HTTP_HEADER_RESP) {
+    printf("status: %d  reason: %d  fields: %d",
+           (int) hdr->u.resp.m_status, (int) hdr->u.resp.m_reason_offset, (int) hdr->m_fields_offset);
+  } else {
+    printf("Type match failed\n");
+    return;
+  }
+
+
+}
diff --git a/lib/ts/lockfile.cc b/lib/ts/lockfile.cc
new file mode 100644
index 00000000..f6e9587e
--- /dev/null
+++ b/lib/ts/lockfile.cc
@@ -0,0 +1,266 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_platform.h"
+#include "ink_lockfile.h"
+
+#define LOCKFILE_BUF_LEN 16     // 16 bytes should be enought for a pid
+
+int
+Lockfile::Open(pid_t * holding_pid)
+{
+  char buf[LOCKFILE_BUF_LEN];
+  pid_t val;
+  int err;
+  *holding_pid = 0;
+
+#define FAIL(x) \
+{ \
+  if (fd > 0) \
+    close (fd); \
+  return (x); \
+}
+
+  struct flock lock;
+  char *t;
+  int size;
+
+  fd = -1;
+
+  // Try and open the Lockfile. Create it if it does not already
+  // exist.
+  do {
+    fd = open(fname, O_RDWR | O_CREAT, 0644);
+  } while ((fd < 0) && (errno == EINTR));
+
+  if (fd < 0)
+    return (-errno);
+
+  // Lock it. Note that if we can't get the lock EAGAIN will be the
+  // error we receive.
+  lock.l_type = F_WRLCK;
+  lock.l_start = 0;
+  lock.l_whence = SEEK_SET;
+  lock.l_len = 0;
+
+  do {
+    err = fcntl(fd, F_SETLK, &lock);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0) {
+    // We couldn't get the lock. Try and read the process id of the
+    // process holding the lock from the lockfile.
+    t = buf;
+
+    for (size = 15; size > 0;) {
+      do {
+        err = read(fd, t, size);
+      } while ((err < 0) && (errno == EINTR));
+
+      if (err < 0)
+        FAIL(-errno);
+      if (err == 0)
+        break;
+
+      size -= err;
+      t += err;
+    }
+
+    *t = '\0';
+
+    // coverity[secure_coding]
+    if (sscanf(buf, "%d\n", (int*)&val) != 1) {
+      *holding_pid = 0;
+    } else {
+      *holding_pid = val;
+    }
+    FAIL(0);
+  }
+  // If we did get the lock, then set the close on exec flag so that
+  // we don't accidently pass the file descriptor to a child process
+  // when we do a fork/exec.
+  do {
+    err = fcntl(fd, F_GETFD, 0);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0)
+    FAIL(-errno);
+
+  val = err | FD_CLOEXEC;
+
+  do {
+    err = fcntl(fd, F_SETFD, val);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0)
+    FAIL(-errno);
+
+  // Return the file descriptor of the opened lockfile. When this file
+  // descriptor is closed the lock will be released.
+
+  return (1);                   // success
+
+#undef FAIL
+}
+
+int
+Lockfile::Get(pid_t * holding_pid)
+{
+  char buf[LOCKFILE_BUF_LEN];
+  int err;
+  *holding_pid = 0;
+
+
+  fd = -1;
+
+  // Open the Lockfile and get the lock. If we are successful, the
+  // return value will be the file descriptor of the opened Lockfile.
+  err = Open(holding_pid);
+  if (err != 1)
+    return err;
+
+  if (fd < 0) {
+    return -1;
+  }
+  // Truncate the Lockfile effectively erasing it.
+  do {
+    err = ftruncate(fd, 0);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0) {
+    close(fd);
+    return (-errno);
+  }
+  // Write our process id to the Lockfile.
+  snprintf(buf, sizeof(buf), "%d\n", (int) getpid());
+
+  do {
+    err = write(fd, buf, strlen(buf));
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err != (int) strlen(buf)) {
+    close(fd);
+    return (-errno);
+  }
+
+  return (1);                   // success
+}
+
+void
+Lockfile::Close(void)
+{
+  if (fd != -1) {
+    close(fd);
+  }
+}
+
+//-------------------------------------------------------------------------
+// Lockfile::Kill() and Lockfile::KillAll()
+//
+// Open the lockfile. If we succeed it means there was no process
+// holding the lock. We'll just close the file and release the lock
+// in that case. If we don't succeed in getting the lock, the
+// process id of the process holding the lock is returned. We
+// repeatedly send the KILL signal to that process until doing so
+// fails. That is, until kill says that the process id is no longer
+// valid (we killed the process), or that we don't have permission
+// to send a signal to that process id (the process holding the lock
+// is dead and a new process has replaced it).
+//
+// INKqa11325 (Kevlar: linux machine hosed up if specific threads
+// killed): Unfortunately, it's possible on Linux that the main PID of
+// the process has been successfully killed (and is waiting to be
+// reaped while in a defunct state), while some of the other threads
+// of the process just don't want to go away.
+//-------------------------------------------------------------------------
+
+static void
+lockfile_kill_internal(pid_t init_pid, int init_sig, pid_t pid, const char * /* pname ATS_UNUSED */, int sig)
+{
+  int err;
+  int status;
+
+  if (init_sig > 0) {
+    kill(init_pid, init_sig);
+    // Wait for children to exit
+    do {
+      err = waitpid(-1, &status, WNOHANG);
+      if (err == -1) break;
+    } while(!WIFEXITED(status) && !WIFSIGNALED(status));
+  }
+
+  do {
+    err = kill(pid, sig);
+  } while ((err == 0) || ((err < 0) && (errno == EINTR)));
+
+}
+
+void
+Lockfile::Kill(int sig, int initial_sig, const char *pname)
+{
+  int err;
+  int pid;
+  pid_t holding_pid;
+
+  err = Open(&holding_pid);
+  if (err == 1)                 // success getting the lock file
+  {
+    Close();
+  } else if (err == 0)          // someone else has the lock
+  {
+    pid = holding_pid;
+    if (pid != 0) {
+      lockfile_kill_internal(pid, initial_sig, pid, pname, sig);
+    }
+  }
+}
+
+void
+Lockfile::KillGroup(int sig, int initial_sig, const char *pname)
+{
+  int err;
+  pid_t pid;
+  pid_t holding_pid;
+
+  err = Open(&holding_pid);
+  if (err == 1)                 // success getting the lock file
+  {
+    Close();
+  } else if (err == 0)          // someone else has the lock
+  {
+    do {
+      pid = getpgid(holding_pid);
+    } while ((pid < 0) && (errno == EINTR));
+
+    if ((pid < 0) || (pid == getpid()))
+      pid = holding_pid;
+
+    if (pid != 0) {
+      // This way, we kill the process_group:
+      pid = -pid;
+      // In order to get core files from each process, please
+      // set your core_pattern appropriately.
+      lockfile_kill_internal(holding_pid, initial_sig, pid, pname, sig);
+    }
+  }
+}
diff --git a/lib/ts/mkdfa.c b/lib/ts/mkdfa.c
new file mode 100644
index 00000000..d02ae251
--- /dev/null
+++ b/lib/ts/mkdfa.c
@@ -0,0 +1,661 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define SIZEOF(t) (sizeof (t) / (sizeof ((t)[0])))
+
+
+typedef struct _info_t info_t;
+typedef struct _state_t state_t;
+typedef struct _transition_t transition_t;
+
+struct _info_t
+{
+  const char *name;
+  const char *value;
+  int namelen;
+};
+
+struct _state_t
+{
+  int num;
+  const char *value;
+  transition_t *transitions;
+};
+
+struct _transition_t
+{
+  int value;
+  state_t *state;
+  transition_t *next;
+};
+
+
+info_t fields[] = {
+  {"Accept", "MIME_FIELD_ACCEPT", 0},
+  {"Accept-Charset", "MIME_FIELD_ACCEPT_CHARSET", 0},
+  {"Accept-Encoding", "MIME_FIELD_ACCEPT_ENCODING", 0},
+  {"Accept-Language", "MIME_FIELD_ACCEPT_LANGUAGE", 0},
+  {"Accept-Ranges", "MIME_FIELD_ACCEPT_RANGES", 0},
+  {"Age", "MIME_FIELD_AGE", 0},
+  {"Allow", "MIME_FIELD_ALLOW", 0},
+  {"Approved", "MIME_FIELD_APPROVED", 0},
+  {"Authorization", "MIME_FIELD_AUTHORIZATION", 0},
+  {"Bytes", "MIME_FIELD_BYTES", 0},
+  {"Cache-Control", "MIME_FIELD_CACHE_CONTROL", 0},
+  {"Connection", "MIME_FIELD_CONNECTION", 0},
+  {"Content-Base", "MIME_FIELD_CONTENT_BASE", 0},
+  {"Content-Encoding", "MIME_FIELD_CONTENT_ENCODING", 0},
+  {"Content-Language", "MIME_FIELD_CONTENT_LANGUAGE", 0},
+  {"Content-Length", "MIME_FIELD_CONTENT_LENGTH", 0},
+  {"Content-Location", "MIME_FIELD_CONTENT_LOCATION", 0},
+  {"Content-Md5", "MIME_FIELD_CONTENT_MD5", 0},
+  {"Content-Range", "MIME_FIELD_CONTENT_RANGE", 0},
+  {"Content-Type", "MIME_FIELD_CONTENT_TYPE", 0},
+  {"Control", "MIME_FIELD_CONTROL", 0},
+  {"Cookie", "MIME_FIELD_COOKIE", 0},
+  {"Date", "MIME_FIELD_DATE", 0},
+  {"Distribution", "MIME_FIELD_DISTRIBUTION", 0},
+  {"Etag", "MIME_FIELD_ETAG", 0},
+  {"Expires", "MIME_FIELD_EXPIRES", 0},
+  {"Followup-To", "MIME_FIELD_FOLLOWUP_TO", 0},
+  {"From", "MIME_FIELD_FROM", 0},
+  {"Host", "MIME_FIELD_HOST", 0},
+  {"If-Match", "MIME_FIELD_IF_MATCH", 0},
+  {"If-Modified-Since", "MIME_FIELD_IF_MODIFIED_SINCE", 0},
+  {"If-None-Match", "MIME_FIELD_IF_NONE_MATCH", 0},
+  {"If-Range", "MIME_FIELD_IF_RANGE", 0},
+  {"If-Unmodified-Since", "MIME_FIELD_IF_UNMODIFIED_SINCE", 0},
+  {"Keywords", "MIME_FIELD_KEYWORDS", 0},
+  {"Last-Modified", "MIME_FIELD_LAST_MODIFIED", 0},
+  {"Lines", "MIME_FIELD_LINES", 0},
+  {"Location", "MIME_FIELD_LOCATION", 0},
+  {"Max-Forwards", "MIME_FIELD_MAX_FORWARDS", 0},
+  {"Message-ID", "MIME_FIELD_MESSAGE_ID", 0},
+  {"Newsgroups", "MIME_FIELD_NEWSGROUPS", 0},
+  {"Organization", "MIME_FIELD_ORGANIZATION", 0},
+  {"Path", "MIME_FIELD_PATH", 0},
+  {"Pragma", "MIME_FIELD_PRAGMA", 0},
+  {"Proxy-Authenticate", "MIME_FIELD_PROXY_AUTHENTICATE", 0},
+  {"Proxy-Authorization", "MIME_FIELD_PROXY_AUTHORIZATION", 0},
+  {"Proxy-Connection", "MIME_FIELD_PROXY_CONNECTION", 0},
+  {"Public", "MIME_FIELD_PUBLIC", 0},
+  {"Range", "MIME_FIELD_RANGE", 0},
+  {"References", "MIME_FIELD_REFERENCES", 0},
+  {"Referer", "MIME_FIELD_REFERER", 0},
+  {"Reply-To", "MIME_FIELD_REPLY_TO", 0},
+  {"Retry-After", "MIME_FIELD_RETRY_AFTER", 0},
+  {"Sender", "MIME_FIELD_SENDER", 0},
+  {"Server", "MIME_FIELD_SERVER", 0},
+  {"Set-Cookie", "MIME_FIELD_SET_COOKIE", 0},
+  {"Subject", "MIME_FIELD_SUBJECT", 0},
+  {"Summary", "MIME_FIELD_SUMMARY", 0},
+  {"Transfer-Encoding", "MIME_FIELD_TRANSFER_ENCODING", 0},
+  {"Upgrade", "MIME_FIELD_UPGRADE", 0},
+  {"User-Agent", "MIME_FIELD_USER_AGENT", 0},
+  {"Vary", "MIME_FIELD_VARY", 0},
+  {"Via", "MIME_FIELD_VIA", 0},
+  {"Warning", "MIME_FIELD_WARNING", 0},
+  {"Www-Authenticate", "MIME_FIELD_WWW_AUTHENTICATE", 0},
+  {"Xref", "MIME_FIELD_XREF", 0},
+  {NULL, "MIME_FIELD_EXTENSION", 0},
+};
+
+info_t schemes[] = {
+  {"file", "URL_SCHEME_FILE", 0},
+  {"ftp", "URL_SCHEME_FTP", 0},
+  {"gopher", "URL_SCHEME_GOPHER", 0},
+  {"http", "URL_SCHEME_HTTP", 0},
+  {"https", "URL_SCHEME_HTTPS", 0},
+  {"mailto", "URL_SCHEME_MAILTO", 0},
+  {"news", "URL_SCHEME_NEWS", 0},
+  {"nntp", "URL_SCHEME_NNTP", 0},
+  {"prospero", "URL_SCHEME_PROSPERO", 0},
+  {"telnet", "URL_SCHEME_TELNET", 0},
+  {"wais", "URL_SCHEME_WAIS", 0},
+  {NULL, "URL_SCHEME_NONE", 0},
+};
+
+info_t methods[] = {
+  {"CONNECT", "HTTP_METHOD_CONNECT", -1},
+  {"DELETE", "HTTP_METHOD_DELETE", -1},
+  {"GET", "HTTP_METHOD_GET", -1},
+  {"HEAD", "HTTP_METHOD_HEAD", -1},
+  {"HTTP/", "HTTP_METHOD_HTTP", -1},
+  {"OPTIONS", "HTTP_METHOD_OPTIONS", -1},
+  {"POST", "HTTP_METHOD_POST", -1},
+  {"PURGE", "HTTP_METHOD_PURGE", -1},
+  {"PUT", "HTTP_METHOD_PUT", -1},
+  {"TRACE", "HTTP_METHOD_TRACE", -1},
+  {NULL, "HTTP_METHOD_NONE", 0},
+};
+
+info_t statuses[] = {
+  {"100", "HTTP_STATUS_CONTINUE", -1},
+  {"101", "HTTP_STATUS_SWITCHING_PROTOCOL", -1},
+  {"200", "HTTP_STATUS_OK", -1},
+  {"201", "HTTP_STATUS_CREATED", -1},
+  {"202", "HTTP_STATUS_ACCEPTED", -1},
+  {"203", "HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION", -1},
+  {"204", "HTTP_STATUS_NO_CONTENT", -1},
+  {"205", "HTTP_STATUS_RESET_CONTENT", -1},
+  {"206", "HTTP_STATUS_PARTIAL_CONTENT", -1},
+  {"300", "HTTP_STATUS_MULTIPLE_CHOICES", -1},
+  {"301", "HTTP_STATUS_MOVED_PERMANENTLY", -1},
+  {"302", "HTTP_STATUS_MOVED_TEMPORARILY", -1},
+  {"303", "HTTP_STATUS_SEE_OTHER", -1},
+  {"304", "HTTP_STATUS_NOT_MODIFIED", -1},
+  {"305", "HTTP_STATUS_USE_PROXY", -1},
+  {"400", "HTTP_STATUS_BAD_REQUEST", -1},
+  {"401", "HTTP_STATUS_UNAUTHORIZED", -1},
+  {"402", "HTTP_STATUS_PAYMENT_REQUIRED", -1},
+  {"403", "HTTP_STATUS_FORBIDDEN", -1},
+  {"404", "HTTP_STATUS_NOT_FOUND", -1},
+  {"405", "HTTP_STATUS_METHOD_NOT_ALLOWED", -1},
+  {"406", "HTTP_STATUS_NOT_ACCEPTABLE", -1},
+  {"407", "HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED", -1},
+  {"408", "HTTP_STATUS_REQUEST_TIMEOUT", -1},
+  {"409", "HTTP_STATUS_CONFLICT", -1},
+  {"410", "HTTP_STATUS_GONE", -1},
+  {"411", "HTTP_STATUS_LENGTH_REQUIRED", -1},
+  {"412", "HTTP_STATUS_PRECONDITION_FAILED", -1},
+  {"413", "HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE", -1},
+  {"414", "HTTP_STATUS_REQUEST_URI_TOO_LONG", -1},
+  {"415", "HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE", -1},
+  {"500", "HTTP_STATUS_INTERNAL_SERVER_ERROR", -1},
+  {"501", "HTTP_STATUS_NOT_IMPLEMENTED", -1},
+  {"502", "HTTP_STATUS_BAD_GATEWAY", -1},
+  {"503", "HTTP_STATUS_SERVICE_UNAVAILABLE", -1},
+  {"504", "HTTP_STATUS_GATEWAY_TIMEOUT", -1},
+  {"505", "HTTP_STATUS_HTTPVER_NOT_SUPPORTED", -1},
+  {NULL, "HTTP_STATUS_NONE", 0},
+};
+
+info_t days[] = {
+  {"Fri", "FRIDAY", -1},
+  {"Friday", "FRIDAY", -1},
+  {"Mon", "MONDAY", -1},
+  {"Monday", "MONDAY", -1},
+  {"Sat", "SATURDAY", -1},
+  {"Saturday", "SATURDAY", -1},
+  {"Sun", "SUNDAY", -1},
+  {"Sunday", "SUNDAY", -1},
+  {"Thu", "THURSDAY", -1},
+  {"Thursday", "THURSDAY", -1},
+  {"Tue", "TUESDAY", -1},
+  {"Tuesday", "TUESDAY", -1},
+  {"Wed", "WEDNESDAY", -1},
+  {"Wednesday", "WEDNESDAY", -1},
+  {NULL, "UNKNOWN_DAY", -1},
+};
+
+info_t months[] = {
+  {"Apr", "APRIL", -1},
+  {"Aug", "AUGUST", -1},
+  {"Dec", "DECEMBER", -1},
+  {"Feb", "FEBRUARY", -1},
+  {"Jan", "JANUARY", -1},
+  {"Jul", "JULY", -1},
+  {"Jun", "JUNE", -1},
+  {"Mar", "MARCH", -1},
+  {"May", "MAY", -1},
+  {"Nov", "NOVEMBER", -1},
+  {"Oct", "OCTOBER", -1},
+  {"Sep", "SEPTEMBER", -1},
+  {NULL, "UNKNOWN_MONTH", -1},
+};
+
+info_t connections[] = {
+  {"CLOSE", "HTTP_CONNECTION_CLOSE", -1},
+  {"KEEP-ALIVE", "HTTP_CONNECTION_KEEP_ALIVE", -1},
+  {NULL, "HTTP_CONNECTION_NONE", -1},
+};
+
+info_t cache_controls[] = {
+  {"max-age", "HTTP_CACHE_DIRECTIVE_MAX_AGE", -1},
+  {"max-stale", "HTTP_CACHE_DIRECTIVE_MAX_STALE", -1},
+  {"min-fresh", "HTTP_CACHE_DIRECTIVE_MIN_FRESH", -1},
+  {"must-revalidate", "HTTP_CACHE_DIRECTIVE_MUST_REVALIDATE", -1},
+  {"no-cache", "HTTP_CACHE_DIRECTIVE_NO_CACHE", -1},
+  {"no-store", "HTTP_CACHE_DIRECTIVE_NO_STORE", -1},
+  {"no-transform", "HTTP_CACHE_DIRECTIVE_NO_TRANSFORM", -1},
+  {"only-if-cached", "HTTP_CACHE_DIRECTIVE_ONLY_IF_CACHED", -1},
+  {"private", "HTTP_CACHE_DIRECTIVE_PRIVATE", -1},
+  {"proxy-revalidate", "HTTP_CACHE_DIRECTIVE_PROXY_REVALIDATE", -1},
+  {"public", "HTTP_CACHE_DIRECTIVE_PUBLIC", -1},
+  {"s-maxage", "HTTP_CACHE_DIRECTIVE_S_MAX_AGE", -1},
+  {NULL, "HTTP_CACHE_DIRECTIVE_CACHE_EXTENSION", -1},
+};
+
+
+state_t *start = NULL;
+int state_count = 0;
+
+int *map = NULL;
+int *basetbl = NULL;
+int *nexttbl = NULL;
+int *checktbl = NULL;
+const char **accepttbl = NULL;
+char **prefixtbl = NULL;
+
+
+state_t *
+mkstate()
+{
+  state_t *state;
+
+  state = (state_t *) malloc(sizeof(state_t));
+  state->num = state_count++;
+  state->value = NULL;
+  state->transitions = NULL;
+
+  return state;
+}
+
+transition_t *
+mktransition()
+{
+  transition_t *transition;
+
+  transition = (transition_t *) malloc(sizeof(transition_t));
+  transition->value = 0;
+  transition->state = NULL;
+  transition->next = NULL;
+
+  return transition;
+}
+
+void
+prstate(state_t * state)
+{
+  transition_t *transitions;
+
+  printf("%3d:", state->num);
+
+  if (state->value)
+    printf(" %s", state->value);
+  printf("\n");
+
+  transitions = state->transitions;
+  while (transitions) {
+    printf("     %c --> %d\n", tolower(transitions->value), transitions->state->num);
+    transitions = transitions->next;
+  }
+
+  transitions = state->transitions;
+  while (transitions) {
+    prstate(transitions->state);
+    transitions = transitions->next;
+  }
+}
+
+void
+add_states(state_t * state, info_t * info, int pos)
+{
+  transition_t *transitions;
+
+  if (info->namelen == pos) {
+    state->value = info->value;
+    return;
+  }
+
+  transitions = state->transitions;
+  while (transitions) {
+    if (tolower(transitions->value) == tolower(info->name[pos])) {
+      if ((transitions->state->value && (info->namelen == (pos + 1))) || (info->namelen != (pos + 1))) {
+        add_states(transitions->state, info, pos + 1);
+        return;
+      }
+    }
+
+    transitions = transitions->next;
+  }
+
+  if (state->transitions) {
+    transitions = state->transitions;
+    while (transitions->next)
+      transitions = transitions->next;
+
+    transitions->next = mktransition();
+    transitions = transitions->next;
+  } else {
+    transitions = mktransition();
+    state->transitions = transitions;
+  }
+
+  transitions->value = info->name[pos];
+  transitions->state = mkstate();
+
+  add_states(transitions->state, info, pos + 1);
+}
+
+void
+prtable(const char *type, const char *name, int *table, int size)
+{
+  int i;
+
+  printf("  static %s %s[%d] =\n", type, name, size);
+  printf("  {\n");
+
+  for (i = 0; i < size; i++) {
+    if ((i % 12) == 0)
+      printf("    %3d,", table[i]);
+    else if ((i % 12) == 11)
+      printf(" %3d,\n", table[i]);
+    else
+      printf(" %3d,", table[i]);
+  }
+
+  if ((i % 12) != 0)
+    printf("\n");
+
+  printf("  };\n");
+}
+
+int
+mkmap(state_t * state)
+{
+  static int count = 1;
+
+  transition_t *transitions;
+
+  transitions = state->transitions;
+  while (transitions) {
+    if (map[tolower(transitions->value)] == 0) {
+      map[tolower(transitions->value)] = count;
+      map[toupper(transitions->value)] = count;
+      count += 1;
+    }
+
+    mkmap(transitions->state);
+
+    transitions = transitions->next;
+  }
+
+  return count;
+}
+
+void
+mkaccept(state_t * state, const char *defvalue)
+{
+  transition_t *transitions;
+
+  if (state->value)
+    accepttbl[state->num] = state->value;
+  else
+    accepttbl[state->num] = defvalue;
+
+  transitions = state->transitions;
+  while (transitions) {
+    mkaccept(transitions->state, defvalue);
+    transitions = transitions->next;
+  }
+}
+
+void
+mkprefix(state_t * state, char *prefix, int length)
+{
+  transition_t *transitions;
+
+  prefixtbl[state->num] = (char *) malloc(sizeof(char) * (length + 1));
+  strncpy(prefixtbl[state->num], prefix, length);
+  prefixtbl[state->num][length] = '\0';
+
+  transitions = state->transitions;
+  while (transitions) {
+    prefix[length] = transitions->value;
+    mkprefix(transitions->state, prefix, length + 1);
+    transitions = transitions->next;
+  }
+}
+
+int
+checkbase(state_t * state, int base)
+{
+  transition_t *transitions;
+
+  transitions = state->transitions;
+  while (transitions) {
+    if (checktbl[base + map[transitions->value]] != -1)
+      return 0;
+    transitions = transitions->next;
+  }
+
+  return 1;
+}
+
+void
+mktranstables(state_t * state)
+{
+  transition_t *transitions;
+  int base;
+
+  base = 0;
+  while (base < state_count) {
+    if (checkbase(state, base))
+      break;
+    base += 1;
+  }
+
+  assert(base < state_count);
+
+  basetbl[state->num] = base;
+
+  transitions = state->transitions;
+  while (transitions) {
+    assert(checktbl[basetbl[state->num] + map[transitions->value]] == -1);
+
+    checktbl[basetbl[state->num] + map[transitions->value]] = state->num;
+    nexttbl[basetbl[state->num] + map[transitions->value]] = transitions->state->num;
+    transitions = transitions->next;
+  }
+
+  transitions = state->transitions;
+  while (transitions) {
+    mktranstables(transitions->state);
+    transitions = transitions->next;
+  }
+}
+
+void
+mktables(state_t * state, const char *defvalue, int useprefix)
+{
+  char prefix[1024];
+  int char_count;
+  int i;
+
+  /* make the character map */
+  map = (int *) malloc(sizeof(int) * 256);
+  for (i = 0; i < 256; i++)
+    map[i] = 0;
+
+  char_count = mkmap(state);
+
+  prtable("int", "map", map, 256);
+  printf("\n");
+
+  /* make the accept state table */
+  accepttbl = (const char **) malloc(sizeof(const char *) * state_count);
+  for (i = 0; i < state_count; i++)
+    accepttbl[i] = NULL;
+
+  mkaccept(state, defvalue);
+
+  /* print the accept state table */
+  printf("  static int accepttbl[%d] =\n", state_count);
+  printf("  {\n");
+
+  for (i = 0; i < state_count; i++)
+    printf("    %s,\n", accepttbl[i]);
+
+  printf("  };\n\n");
+
+  /* make the prefix table */
+  if (useprefix) {
+    prefixtbl = (char **) malloc(sizeof(char *) * state_count);
+    for (i = 0; i < state_count; i++)
+      prefixtbl[i] = NULL;
+
+    mkprefix(state, prefix, 0);
+
+    /* print the prefix table */
+    printf("  static const char *prefixtbl[%d] =\n", state_count);
+    printf("  {\n");
+
+    for (i = 0; i < state_count; i++)
+      printf("    \"%s\",\n", prefixtbl[i]);
+
+    printf("  };\n\n");
+  }
+
+  /* make the state transition tables */
+
+  basetbl = (int *) malloc(sizeof(int) * state_count);
+  nexttbl = (int *) malloc(sizeof(int) * (state_count + char_count));
+  checktbl = (int *) malloc(sizeof(int) * (state_count + char_count));
+
+  for (i = 0; i < state_count; i++) {
+    basetbl[i] = -1;
+  }
+
+  for (i = 0; i < (state_count + char_count); i++) {
+    nexttbl[i] = 0;
+    checktbl[i] = -1;
+  }
+
+  mktranstables(state);
+
+  prtable("int", "basetbl", basetbl, state_count);
+  printf("\n");
+  prtable("int", "nexttbl", nexttbl, state_count + char_count);
+  printf("\n");
+  prtable("int", "checktbl", checktbl, state_count + char_count);
+}
+
+const char *
+rundfa(const char *buf, int length)
+{
+  const char *end;
+  int state;
+  int ch, tmp;
+
+  state = 0;
+  end = buf + length;
+
+  while (buf != end) {
+    ch = map[(int) *buf++];
+
+    tmp = basetbl[state] + ch;
+    if (checktbl[tmp] != state)
+      return NULL;
+    state = nexttbl[tmp];
+  }
+
+  return accepttbl[state];
+}
+
+void
+mkdfa(info_t * infos, int ninfos, int useprefix, int debug)
+{
+  /*
+     static const char *names[] =
+     {
+     "foo",
+     "bar",
+     "foobar",
+     "argh",
+     "filep",
+     };
+     static int nnames = SIZEOF (names);
+     const char *accept;
+   */
+
+  int i;
+
+  start = mkstate();
+
+  for (i = 0; i < (ninfos - 1); i++)
+    infos[i].namelen = strlen(infos[i].name);
+
+  for (i = 0; i < (ninfos - 1); i++)
+    add_states(start, &infos[i], 0);
+
+  mktables(start, infos[ninfos - 1].value, useprefix);
+
+  if (debug) {
+    printf("\n/*\n");
+    prstate(start);
+    printf("*/\n");
+
+    /*
+       for (i = 0; i < ninfos; i++)
+       {
+       accept = rundfa (infos[i].name, infos[i].namelen);
+       if (accept)
+       printf ("%s\n", accept);
+       else
+       printf ("%s not accepted\n", infos[i].name);
+       }
+
+       for (i = 0; i < nnames; i++)
+       {
+       accept = rundfa (names[i], strlen (names[i]));
+       if (accept)
+       printf ("%s\n", accept);
+       else
+       printf ("%s not accepted\n", names[i]);
+       }
+     */
+  }
+}
+
+int
+main(int argc, char *argv[])
+{
+  if (argc < 2)
+    return 1;
+
+  if (strcmp(argv[1], "fields") == 0)
+    mkdfa(fields, SIZEOF(fields), 1, (argc == 3));
+  else if (strcmp(argv[1], "methods") == 0)
+    mkdfa(methods, SIZEOF(methods), 0, (argc == 3));
+  else if (strcmp(argv[1], "statuses") == 0)
+    mkdfa(statuses, SIZEOF(statuses), 0, (argc == 3));
+  else if (strcmp(argv[1], "schemes") == 0)
+    mkdfa(schemes, SIZEOF(schemes), 0, (argc == 3));
+  else if (strcmp(argv[1], "days") == 0)
+    mkdfa(days, SIZEOF(days), 0, (argc == 3));
+  else if (strcmp(argv[1], "months") == 0)
+    mkdfa(months, SIZEOF(months), 0, (argc == 3));
+  else if (strcmp(argv[1], "connections") == 0)
+    mkdfa(connections, SIZEOF(connections), 0, (argc == 3));
+  else if (strcmp(argv[1], "cache-controls") == 0)
+    mkdfa(cache_controls, SIZEOF(cache_controls), 0, (argc == 3));
+
+  return 0;
+}
diff --git a/lib/ts/test_List.cc b/lib/ts/test_List.cc
new file mode 100644
index 00000000..fc736ace
--- /dev/null
+++ b/lib/ts/test_List.cc
@@ -0,0 +1,59 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "List.h"
+
+class Foo { public:
+  int x;
+
+  void foo() {}
+
+  SLINK(Foo, slink);
+  LINK(Foo, dlink);
+
+  Foo(int i = 0): x(i) {}
+};
+
+int main() {
+   SList(Foo,slink) s;
+   DList(Foo,dlink) d;
+   Que(Foo,dlink) q;
+   Foo *f = new Foo;
+   f->x = 7;
+   s.push(f);
+   d.push(s.pop());
+   q.enqueue(d.pop());
+   for (int i = 0; i < 100; i++)
+     q.enqueue(new Foo(i));
+   int tot = 0;
+   for (int i = 0; i < 101; i++)
+     tot += q.dequeue()->x;
+   if (tot != 4957) {
+     printf("test_List FAILED\n");
+     exit(1);
+   } else {
+     printf("test_List PASSED\n");
+     exit(0);
+   }
+}
diff --git a/lib/ts/test_Map.cc b/lib/ts/test_Map.cc
new file mode 100644
index 00000000..42ed0b22
--- /dev/null
+++ b/lib/ts/test_Map.cc
@@ -0,0 +1,122 @@
+/** @file
+
+  Test code for the Map templates.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#include <stdint.h>
+#include "Map.h"
+
+typedef const char cchar;
+
+int main(int /* argc ATS_UNUSED */, char **/*argv ATS_UNUSED */) {
+  typedef Map<cchar *, cchar *> SSMap;
+  typedef MapElem<cchar *, cchar *> SSMapElem;
+#define form_SSMap(_p, _v) form_Map(SSMapElem, _p, _v)
+  SSMap ssm;
+  ssm.put("a", "A");
+  ssm.put("b", "B");
+  ssm.put("c", "C");
+  ssm.put("d", "D");
+  form_SSMap(x, ssm) { /* nop */ }
+
+/*
+  if ((ssm).n)
+    for (SSMapElem *qq__x = (SSMapElem*)0, *x = &(ssm).v[0];
+             ((intptr_t)(qq__x) < (ssm).n) && ((x = &(ssm).v[(intptr_t)qq__x]) || 1);
+             qq__x = (SSMapElem*)(((intptr_t)qq__x) + 1))
+          if ((x)->key) {
+            // nop
+          }
+          */
+
+  StringChainHash<> h;
+  cchar *hi = "hi", *ho = "ho", *hum = "hum", *hhi = "hhi";
+  hhi++;
+  h.put(hi);
+  h.put(ho);
+  ink_assert(h.put(hum) == hum);
+  ink_assert(h.put(hhi) == hi);
+  ink_assert(h.get(hhi) == hi && h.get(hi) == hi && h.get(ho) == ho);
+  ink_assert(h.get("he") == 0 && h.get("hee") == 0);
+  h.del(ho);
+  ink_assert(h.get(ho) == 0);
+
+  StringBlockHash hh;
+  hh.put(hi);
+  hh.put(ho);
+  ink_assert(hh.put(hum) == 0);
+  ink_assert(hh.put(hhi) == hi);
+  ink_assert(hh.get(hhi) == hi && hh.get(hi) == hi && hh.get(ho) == ho);
+  ink_assert(hh.get("he") == 0 && hh.get("hee") == 0);
+  hh.del(hi);
+  ink_assert(hh.get(hhi) == 0);
+  ink_assert(hh.get(hi) == 0);
+
+  HashMap<cchar *, StringHashFns, int> sh;
+  sh.put(hi, 1);
+  sh.put(ho, 2);
+  sh.put(hum, 3);
+  sh.put(hhi, 4);
+  ink_assert(sh.get(hi) == 4);
+  ink_assert(sh.get(ho) == 2);
+  ink_assert(sh.get(hum) == 3);
+  sh.put("aa", 5);
+  sh.put("ab", 6);
+  sh.put("ac", 7);
+  sh.put("ad", 8);
+  sh.put("ae", 9);
+  sh.put("af", 10);
+  ink_assert(sh.get(hi) == 4);
+  ink_assert(sh.get(ho) == 2);
+  ink_assert(sh.get(hum) == 3);
+  ink_assert(sh.get("af") == 10);
+  ink_assert(sh.get("ac") == 7);
+
+  ChainHashMap<cchar *, StringHashFns, int> ssh;
+  ssh.put(hi, 1);
+  ssh.put(ho, 2);
+  ssh.put(hum, 3);
+  ssh.put(hhi, 4);
+  ink_assert(ssh.get(hi) == 4);
+  ink_assert(ssh.get(ho) == 2);
+  ink_assert(ssh.get(hum) == 3);
+  ssh.put("aa", 5);
+  ssh.put("ab", 6);
+  ssh.put("ac", 7);
+  ssh.put("ad", 8);
+  ssh.put("ae", 9);
+  ssh.put("af", 10);
+  ink_assert(ssh.get(hi) == 4);
+  ink_assert(ssh.get(ho) == 2);
+  ink_assert(ssh.get(hum) == 3);
+  ink_assert(ssh.get("af") == 10);
+  ink_assert(ssh.get("ac") == 7);
+  ssh.del(ho);
+  ink_assert(ssh.get(ho) == 0);
+  
+  Vec<int> ints;
+  ssh.get_values(ints);
+  ink_assert(ints.n == 8);
+  Vec<cchar *> chars;
+  ssh.get_keys(chars);
+  ink_assert(chars.n == 8);
+  printf("test_Map PASSED\n");
+}
+
diff --git a/lib/ts/test_Vec.cc b/lib/ts/test_Vec.cc
new file mode 100644
index 00000000..f8693c10
--- /dev/null
+++ b/lib/ts/test_Vec.cc
@@ -0,0 +1,129 @@
+/* -*-Mode: c++;-*-
+  Various vector related code.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/* UnionFind after Tarjan */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <ink_assert.h>
+#include "Vec.h"
+
+static void test_append()
+{
+  static const char value[] = "this is a string";
+  unsigned int len = (int)sizeof(value) - 1;
+
+  Vec<char> str;
+
+  str.append(value, 0);
+  ink_assert(str.length() == 0);
+
+  str.append(value, len);
+  ink_assert(memcmp(&str[0], value, len) == 0);
+  ink_assert(str.length() == len);
+
+  str.clear();
+  ink_assert(str.length() == 0);
+
+  for (unsigned i = 0; i < 1000; ++i) {
+    str.append(value, len);
+    ink_assert(memcmp(&str[i * len], value, len) == 0);
+  }
+
+  ink_assert(str.length() == 1000 * len);
+}
+
+static void test_basic()
+{
+  Vec<void *> v, vv, vvv;
+  int tt = 99 * 50, t = 0;
+
+  for (size_t i = 0; i < 100; i++)
+    v.add((void*)(intptr_t)i);
+  for (size_t i = 0; i < 100; i++)
+    t += (int)(intptr_t)v.v[i];
+  ink_assert(t == tt);
+
+  t = 0;
+  for (size_t i = 1; i < 100; i++)
+    vv.set_add((void*)(intptr_t)i);
+  for (size_t i = 1; i < 100; i++)
+    vvv.set_add((void*)(intptr_t)i);
+  for (size_t i = 1; i < 100; i++)
+    vvv.set_add((void*)(intptr_t)(i * 1000));
+  vv.set_union(vvv);
+  for (size_t i = 0; i < vv.n; i++)
+    if (vv.v[i])
+      t += (int)(intptr_t)vv.v[i];
+  ink_assert(t == tt + 1000 * tt);
+
+  v.clear();
+  v.reserve(1000);
+  t = 0;
+  for (size_t i = 0; i < 1000; i++)
+    v.add((void*)(intptr_t)i);
+  for (size_t i = 0; i < 1000; i++)
+    t += (int)(intptr_t)v.v[i];
+  ink_assert(t == 999 * 500);
+  printf("%zu %zu\n", v.n, v.i);
+
+  Intervals in;
+  in.insert(1);
+  ink_assert(in.n == 2);
+  in.insert(2);
+  ink_assert(in.n == 2);
+  in.insert(6);
+  ink_assert(in.n == 4);
+  in.insert(7);
+  ink_assert(in.n == 4);
+  in.insert(9);
+  ink_assert(in.n == 6);
+  in.insert(4);
+  ink_assert(in.n == 8);
+  in.insert(5);
+  ink_assert(in.n == 6);
+  in.insert(3);
+  ink_assert(in.n == 4);
+  in.insert(8);
+  ink_assert(in.n == 2);
+
+  UnionFind uf;
+  uf.size(4);
+  uf.unify(0,1);
+  uf.unify(2,3);
+  ink_assert(uf.find(2) == uf.find(3));
+  ink_assert(uf.find(0) == uf.find(1));
+  ink_assert(uf.find(0) != uf.find(3));
+  ink_assert(uf.find(1) != uf.find(3));
+  ink_assert(uf.find(1) != uf.find(2));
+  ink_assert(uf.find(0) != uf.find(2));
+  uf.unify(1,2);
+  ink_assert(uf.find(0) == uf.find(3));
+  ink_assert(uf.find(1) == uf.find(3));
+}
+
+int main(int /* argc ATS_UNUSED */, char **/* argv ATS_UNUSED */)
+{
+  test_append();
+  test_basic();
+  printf("test_Vec PASSED\n");
+}
diff --git a/lib/ts/test_arena.cc b/lib/ts/test_arena.cc
new file mode 100644
index 00000000..e0d83b2c
--- /dev/null
+++ b/lib/ts/test_arena.cc
@@ -0,0 +1,126 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   ArenaTest.cc
+
+   Description:
+
+   A short test program intended to be used with Purify to detect problems
+   with the arnea code
+
+
+ ****************************************************************************/
+
+#include "Arena.h"
+#include <stdio.h>
+
+void
+fill_test_data(char *ptr, int size, int seed)
+{
+  char a = 'a' + (seed % 52);
+
+  for (int i = 0; i < size; i++) {
+    ptr[i] = a;
+    a = (a + 1) % 52;
+  }
+}
+
+int
+check_test_data(char *ptr, int size, int seed)
+{
+  int fail = 0;
+  char a = 'a' + (seed % 52);
+
+  for (int i = 0; i < size; i++) {
+    if (ptr[i] != a) {
+      fail++;
+    }
+    a = (a + 1) % 52;
+  }
+
+  return fail;
+}
+
+int
+test_block_boundries()
+{
+  const int sizes_to_test = 12;
+  const int regions_to_test = 1024 * 2;
+  char **test_regions = new char *[regions_to_test];
+  int failures = 0;
+  Arena *a = new Arena();
+
+
+  for (int i = 0; i < sizes_to_test; i++) {
+    int test_size = 1 << i;
+
+    // Clear out the regions array
+    int j = 0;
+    for (j = 0; j < regions_to_test; j++) {
+      test_regions[j] = NULL;
+    }
+
+    // Allocate and fill the array
+    for (j = 0; j < regions_to_test; j++) {
+      test_regions[j] = (char *) a->alloc(test_size);
+      fill_test_data(test_regions[j], test_size, j);
+    }
+
+    // Now check to make sure the data is correct
+    for (j = 0; j < regions_to_test; j++) {
+      int f = check_test_data(test_regions[j], test_size, j);
+
+      if (f != 0) {
+        fprintf(stderr, "block_boundries test failed.  size %d region %d\n", test_size, j);
+        failures++;
+      }
+    }
+
+    // Now free the regions
+    for (j = 0; j < regions_to_test; j++) {
+      a->free(test_regions[j], test_size);
+    }
+
+    a->reset();
+  }
+
+  delete[]test_regions;
+  delete a;
+  return failures;
+}
+
+int
+main()
+{
+  int failures = 0;
+
+  failures += test_block_boundries();
+
+  if (failures) {
+    return 1;
+  } else {
+    return 0;
+  }
+}
diff --git a/lib/ts/test_atomic.cc b/lib/ts/test_atomic.cc
new file mode 100644
index 00000000..ba95daf4
--- /dev/null
+++ b/lib/ts/test_atomic.cc
@@ -0,0 +1,217 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <poll.h>
+#include <pthread.h>
+#include "ink_atomic.h"
+#include "ink_queue.h"
+#include "ink_thread.h"
+
+
+#ifndef LONG_ATOMICLIST_TEST
+
+#define MAX_ALIST_TEST 10
+#define MAX_ALIST_ARRAY 100000
+InkAtomicList al[MAX_ALIST_TEST];
+void *al_test[MAX_ALIST_TEST][MAX_ALIST_ARRAY];
+volatile int al_done = 0;
+
+void *
+testalist(void *ame)
+{
+  int me = (int) (uintptr_t) ame;
+  int j, k;
+  for (k = 0; k < MAX_ALIST_ARRAY; k++)
+    ink_atomiclist_push(&al[k % MAX_ALIST_TEST], &al_test[me][k]);
+  void *x;
+  for (j = 0; j < 1000000; j++)
+    if ((x = ink_atomiclist_pop(&al[me])))
+      ink_atomiclist_push(&al[rand() % MAX_ALIST_TEST], x);
+  ink_atomic_increment((int *) &al_done, 1);
+  return NULL;
+}
+#endif // !LONG_ATOMICLIST_TEST
+
+#ifdef LONG_ATOMICLIST_TEST
+/************************************************************************/
+#define MAX_ATOMIC_LISTS	(4 * 1024)
+#define MAX_ITEMS_PER_LIST	(1 * 1024)
+#define MAX_TEST_THREADS	64
+static InkAtomicList alists[MAX_ATOMIC_LISTS];
+struct listItem *items[MAX_ATOMIC_LISTS * MAX_ITEMS_PER_LIST];
+
+struct listItem
+{
+  int data1;
+  int data2;
+  void *link;
+  int data3;
+  int data4;
+  int check;
+};
+
+void
+init_data()
+{
+  int j;
+  int ali;
+  struct listItem l;
+  struct listItem *plistItem;
+
+  for (ali = 0; ali < MAX_ATOMIC_LISTS; ali++)
+    ink_atomiclist_init(&alists[ali], "alist", ((char *) &l.link - (char *) &l));
+
+  for (ali = 0; ali < MAX_ATOMIC_LISTS; ali++) {
+    for (j = 0; j < MAX_ITEMS_PER_LIST; j++) {
+      plistItem = (struct listItem *) malloc(sizeof(struct listItem));
+      items[ali + j] = plistItem;
+      plistItem->data1 = ali + j;
+      plistItem->data2 = ali + rand();
+      plistItem->link = 0;
+      plistItem->data3 = j + rand();
+      plistItem->data4 = ali + j + rand();
+      plistItem->check = (plistItem->data1 ^ plistItem->data2 ^ plistItem->data3 ^ plistItem->data4);
+      ink_atomiclist_push(&alists[ali], plistItem);
+    }
+  }
+}
+
+void
+cycle_data(void *d)
+{
+  InkAtomicList *l;
+  struct listItem *pli;
+  struct listItem *pli_next;
+  int iterations;
+  int me;
+
+  me = (int) d;
+  iterations = 0;
+
+  while (1) {
+    l = &alists[(me + rand()) % MAX_ATOMIC_LISTS];
+
+    pli = (struct listItem *) ink_atomiclist_popall(l);
+    if (!pli)
+      continue;
+
+    // Place listItems into random queues
+    while (pli) {
+      ink_assert((pli->data1 ^ pli->data2 ^ pli->data3 ^ pli->data4) == pli->check);
+      pli_next = (struct listItem *) pli->link;
+      pli->link = 0;
+      ink_atomiclist_push(&alists[(me + rand()) % MAX_ATOMIC_LISTS], (void *) pli);
+      pli = pli_next;
+    }
+    iterations++;
+    poll(0, 0, 10);             // 10 msec delay
+    if ((iterations % 100) == 0)
+      printf("%d ", me);
+  }
+}
+
+/************************************************************************/
+#endif // LONG_ATOMICLIST_TEST
+
+int
+main(int /* argc ATS_UNUSED */, const char */* argv ATS_UNUSED */[])
+{
+#ifndef LONG_ATOMICLIST_TEST
+  int32_t m = 1, n = 100;
+  //int64 lm = 1LL, ln = 100LL;
+  const char* m2 = "hello";
+  char* n2;
+
+  printf("sizeof(int32_t)==%d   sizeof(void *)==%d\n", (int)sizeof(int32_t), (int)sizeof(void *));
+
+
+  printf("CAS: %d == 1  then  2\n", m);
+  n = ink_atomic_cas(&m, 1, 2);
+  printf("changed to: %d,  result=%s\n", m, n ? "true" : "false");
+
+  printf("CAS: %d == 1  then  3\n", m);
+  n = ink_atomic_cas(&m, 1, 3);
+  printf("changed to: %d,  result=%s\n", m, n ? "true" : "false");
+
+  printf("CAS pointer: '%s' == 'hello'  then  'new'\n", m2);
+  n = ink_atomic_cas( &m2,  "hello",  "new");
+  printf("changed to: %s, result=%s\n", m2, n ? (char *) "true" : (char *) "false");
+
+  printf("CAS pointer: '%s' == 'hello'  then  'new2'\n", m2);
+  n = ink_atomic_cas(&m2, m2,  "new2");
+  printf("changed to: %s, result=%s\n", m2, n ? "true" : "false");
+
+  n = 100;
+  printf("Atomic Inc of %d\n", n);
+  m = ink_atomic_increment((int *) &n, 1);
+  printf("changed to: %d,  result=%d\n", n, m);
+
+
+  printf("Atomic Fetch-and-Add 2 to pointer to '%s'\n", m2);
+  n2 = (char *)ink_atomic_increment((pvvoidp)&m2, (void *)2);
+  printf("changed to: %s,  result=%s\n", m2, n2);
+
+  printf("Testing atomic lists\n");
+  {
+    int ali;
+    srand(time(NULL));
+    printf("sizeof(al_test) = %d\n", (int)sizeof(al_test));
+    memset(&al_test[0][0], 0, sizeof(al_test));
+    for (ali = 0; ali < MAX_ALIST_TEST; ali++)
+      ink_atomiclist_init(&al[ali], "foo", 0);
+    for (ali = 0; ali < MAX_ALIST_TEST; ali++) {
+      ink_thread tid;
+      pthread_attr_t attr;
+
+      pthread_attr_init(&attr);
+#if !defined(freebsd)
+      pthread_attr_setstacksize(&attr, 1024 * 1024);
+#endif
+      ink_assert(pthread_create(&tid, &attr, testalist, (void *)((intptr_t)ali)) == 0);
+    }
+    while (al_done != MAX_ALIST_TEST)
+      sleep(1);
+  }
+#endif // !LONG_ATOMICLIST_TEST
+
+#ifdef LONG_ATOMICLIST_TEST
+  printf("Testing atomic lists (long version)\n");
+  {
+    int id;
+
+    init_data();
+    for (id = 0; id < MAX_TEST_THREADS; id++) {
+      ink_assert(thr_create(NULL, 0, cycle_data, (void *) id, THR_NEW_LWP, NULL) == 0);
+    }
+  }
+  while (1) {
+    poll(0, 0, 10);             // 10 msec delay
+  }
+#endif // LONG_ATOMICLIST_TEST
+
+  return 0;
+}
diff --git a/lib/ts/test_freelist.cc b/lib/ts/test_freelist.cc
new file mode 100644
index 00000000..677da63a
--- /dev/null
+++ b/lib/ts/test_freelist.cc
@@ -0,0 +1,87 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "ink_thread.h"
+#include "ink_queue.h"
+
+
+#define NTHREADS 64
+InkFreeList *flist = NULL;
+
+
+void *
+test(void *d)
+{
+  int id;
+  void *m1, *m2, *m3;
+
+  id = (intptr_t) d;
+
+  time_t start = time(NULL);
+  int count = 0;
+  for (;;) {
+    m1 = ink_freelist_new(flist);
+    m2 = ink_freelist_new(flist);
+    m3 = ink_freelist_new(flist);
+
+    if ((m1 == m2) || (m1 == m3) || (m2 == m3)) {
+      printf("0x%08" PRIx64 "   0x%08" PRIx64 "   0x%08" PRIx64 "\n",
+             (uint64_t)(uintptr_t)m1, (uint64_t)(uintptr_t)m2, (uint64_t)(uintptr_t)m3);
+      exit(1);
+    }
+
+    memset(m1, id, 64);
+    memset(m2, id, 64);
+    memset(m3, id, 64);
+
+    ink_freelist_free(flist, m1);
+    ink_freelist_free(flist, m2);
+    ink_freelist_free(flist, m3);
+
+    // break out of the test if we have run more then 60 seconds
+    if (++count % 1000 == 0 && (start + 60) < time(NULL)) {
+      return NULL;
+    }
+  }
+
+}
+
+
+int
+main(int /* argc ATS_UNUSED */, char */*argv ATS_UNUSED */[])
+{
+  int i;
+
+  flist = ink_freelist_create("woof", 64, 256, 8);
+
+  for (i = 0; i < NTHREADS; i++) {
+    fprintf(stderr, "Create thread %d\n", i);
+    ink_thread_create(test, (void *)((intptr_t)i));
+  }
+
+  test((void *) NTHREADS);
+
+  return 0;
+}
diff --git a/lib/ts/test_memchr.cc b/lib/ts/test_memchr.cc
new file mode 100644
index 00000000..6f990fd8
--- /dev/null
+++ b/lib/ts/test_memchr.cc
@@ -0,0 +1,171 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+
+//
+// fast memchr
+//
+void *
+ink_memchr(const void *as, int ac, size_t an)
+{
+  unsigned char c = (unsigned char) ac;
+  unsigned char *s = (unsigned char *) as;
+
+  // initial segment
+
+  int i_len = (int)(((uintptr_t) 8 - (uintptr_t) as) & 7);
+
+  // too short to concern us
+
+  if ((int) an < i_len) {
+    for (int i = 0; i < (int) an; i++)
+      if (s[i] == c)
+        return &s[i];
+    return 0;
+  }
+  // bytes 0-3
+
+  switch (i_len & 3) {
+  case 3:
+    if (*s++ == c)
+      return s - 1;
+  case 2:
+    if (*s++ == c)
+      return s - 1;
+  case 1:
+    if (*s++ == c)
+      return s - 1;
+  case 0:
+    break;
+  }
+
+  // bytes 4-8
+
+  unsigned int ib = c;
+  ib |= (ib << 8);
+  ib |= (ib << 16);
+  unsigned int im = 0x7efefeff;
+  if (i_len & 4) {
+    unsigned int ibp = *(unsigned int *) s;
+    unsigned int ibb = ibp ^ ib;
+    ibb = ((ibb + im) ^ ~ibb) & ~im;
+    if (ibb) {
+      if (s[0] == c)
+        return &s[0];
+      if (s[1] == c)
+        return &s[1];
+      if (s[2] == c)
+        return &s[2];
+      if (s[3] == c)
+        return &s[3];
+    }
+    s += 4;
+  }
+  // next 8x bytes
+  uint64_t m = 0x7efefefefefefeffLL;
+  uint64_t b = ((uint64_t) ib);
+  b |= (b << 32);
+  uint64_t *p = (uint64_t *) s;
+  unsigned int n = (((unsigned int) an) - (s - (unsigned char *) as)) >> 3;
+  uint64_t *end = p + n;
+  while (p < end) {
+    uint64_t bp = *p;
+    uint64_t bb = bp ^ b;
+    bb = ((bb + m) ^ ~bb) & ~m;
+    if (bb) {
+      s = (unsigned char *) p;
+      if (s[0] == c)
+        return &s[0];
+      if (s[1] == c)
+        return &s[1];
+      if (s[2] == c)
+        return &s[2];
+      if (s[3] == c)
+        return &s[3];
+      if (s[4] == c)
+        return &s[4];
+      if (s[5] == c)
+        return &s[5];
+      if (s[6] == c)
+        return &s[6];
+      if (s[7] == c)
+        return &s[7];
+    }
+    p++;
+  }
+
+  // terminal segement
+
+  i_len = an - (((unsigned char *) p) - ((unsigned char *) as));
+  s = (unsigned char *) p;
+
+  // n-(4..8)..n bytes
+
+  if (i_len & 4) {
+    unsigned int ibp = *(unsigned int *) s;
+    unsigned int ibb = ibp ^ ib;
+    ibb = ((ibb + im) ^ ~ibb) & ~im;
+    if (ibb) {
+      if (s[0] == c)
+        return &s[0];
+      if (s[1] == c)
+        return &s[1];
+      if (s[2] == c)
+        return &s[2];
+      if (s[3] == c)
+        return &s[3];
+    }
+    s += 4;
+  }
+  // n-(0..3)..n bytes
+
+  switch (i_len & 3) {
+  case 3:
+    if (*s++ == c)
+      return s - 1;
+  case 2:
+    if (*s++ == c)
+      return s - 1;
+  case 1:
+    if (*s++ == c)
+      return s - 1;
+  case 0:
+    break;
+  }
+  return 0;
+}
+
+
+#define MEMCHR(_s,_c) ink_memchr(_s,_c,strlen(_s))?:""
+main()
+{
+  int i = 0;
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalkdufla asdfj3i", ' '));
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalkdufla asdfj3i", '3'));
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalkdufla asdfj3i", '\n'));
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalk$uflaE$$dfj3i", '$'));
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalkd#####asdfj3i", '#'));
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalkdufla a^^sdfj3i", '^'));
+  printf("%d %s\n", i++, MEMCHR("a;ldkfjoiwenalkdufla asd*************fj3i", '*'));
+}
diff --git a/lib/ts/test_strings.cc b/lib/ts/test_strings.cc
new file mode 100644
index 00000000..d78742e2
--- /dev/null
+++ b/lib/ts/test_strings.cc
@@ -0,0 +1,379 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* This program tests the speeds of several of the string functions, both
+ * from the inktomi library and from the standard library.
+ * TODO : add testing for ink_strlcpy ?
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+char *small = "12345";
+char *small2 = "12345";
+int small_len = 5;
+#define SMALL_LEN 5
+
+char *medium = "1234512345123451234512345";
+char *medium2 = "1234512345123451234512345";
+int med_len = 25;
+#define MED_LEN 25
+
+char *large = "111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999";
+char *large2 = "111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999";
+int large_len = 90;
+#define LARGE_LEN 90
+
+int i, iresult, cycles;
+char *sresult;
+char cresult;
+clock_t start, stop;
+
+void *ink_memchr(const void *as, int ac, size_t an);
+
+#define STRLEN_TEST(_func_,_size_) \
+{ \
+    start = clock(); \
+    for (i = 0; i < cycles; i++) { \
+	iresult = _func_ (_size_); \
+    } \
+    stop = clock(); \
+    printf ("%20s\t%10s\t%1.03g usec/op\n", \
+            #_func_, #_size_, ((double)stop-start)/((double)cycles)); \
+}
+
+#define STRCHR_TEST(_func_,_size_,_chr_) \
+{ \
+    start = clock(); \
+    for (i = 0; i < cycles; i++) { \
+	sresult = _func_ (_size_,_chr_); \
+    } \
+    stop = clock(); \
+    printf ("%20s\t%10s\t%1.03g usec/op\t%s\n", \
+            #_func_, #_size_, ((double)stop-start)/((double)cycles), \
+	    (sresult)? "found" : "not found"); \
+}
+
+#define JP_MEMCHR_TEST(_func_,_size_,_chr_,_len_) \
+{ \
+    start = clock(); \
+    for (i = 0; i < cycles; i++) { \
+	sresult = (char*) ink_memchr (_size_,_chr_,_len_); \
+    } \
+    stop = clock(); \
+    printf ("%20s\t%10s\t%1.03g usec/op\t%s\n", \
+            "jp_memchr", #_size_, ((double)stop-start)/((double)cycles), \
+	    (sresult)? "found" : "not found"); \
+}
+
+#define STRCMP_TEST(_func_,_size_,_str_) \
+{ \
+    start = clock(); \
+    for (i = 0; i < cycles; i++) { \
+	iresult = _func_ (_size_,_str_); \
+    } \
+    stop = clock(); \
+    printf ("%20s\t%10s\t%1.03g usec/op\t%s\n", \
+            #_func_, #_size_, ((double)stop-start)/((double)cycles), \
+	    (sresult)? "not matching" : "matching"); \
+}
+
+#define STRCPY_TEST(_func_,_size_) \
+{ \
+    char buf[1024]; \
+    start = clock(); \
+    for (i = 0; i < cycles; i++) { \
+	sresult = _func_ (buf,_size_); \
+    } \
+    stop = clock(); \
+    printf ("%20s\t%10s\t%1.03g usec/op\n", \
+            #_func_, #_size_, ((double)stop-start)/((double)cycles)); \
+}
+
+#define MEMCPY_TEST(_func_,_size_,_len_) \
+{ \
+    char buf[1024]; \
+    start = clock(); \
+    for (i = 0; i < cycles; i++) { \
+	sresult = (char*) _func_ (buf,_size_,_len_); \
+    } \
+    stop = clock(); \
+    printf ("%20s\t%10s\t%10s\t%1.03g usec/op\n", \
+            #_func_, #_size_, #_len_, ((double)stop-start)/((double)cycles)); \
+}
+
+/* version from ink_string.h */
+inline char *
+ink_strchr(char *s, char c)
+{
+  while (*s) {
+    if (*s == c)
+      return (s);
+    else
+      ++s;
+  }
+  return (0);
+}
+
+inline char *
+ink_memcpy(char *d, char *s, int len)
+{
+  for (int i = 0; i < len; i++)
+    d[i] = s[i];
+  return d;
+}
+
+/* version using ink_memchr */
+inline char *
+jp_strchr(char *s, char c)
+{
+  return (char *) ink_memchr(s, c, strlen(s));
+}
+
+void
+strlen_tests()
+{
+  printf("strlen:\n");
+  STRLEN_TEST(strlen, small);
+  STRLEN_TEST(strlen, medium);
+  STRLEN_TEST(strlen, large);
+  printf("\n");
+}
+
+void
+strchr_tests()
+{
+  printf("strchr:\n");
+  /* expect to find */
+  STRCHR_TEST(strchr, small, '5');
+  STRCHR_TEST(ink_strchr, small, '5');
+  JP_MEMCHR_TEST(jp_memchr, small, '5', small_len);
+  STRCHR_TEST(strchr, medium, '5');
+  STRCHR_TEST(ink_strchr, medium, '5');
+  JP_MEMCHR_TEST(jp_memchr, medium, '5', med_len);
+  STRCHR_TEST(strchr, large, '5');
+  STRCHR_TEST(ink_strchr, large, '5');
+  JP_MEMCHR_TEST(jp_memchr, large, '5', large_len);
+  /* expect NOT to find */
+  STRCHR_TEST(strchr, small, 'x');
+  STRCHR_TEST(ink_strchr, small, 'x');
+  JP_MEMCHR_TEST(jp_memchr, small, 'x', small_len);
+  STRCHR_TEST(strchr, medium, 'x');
+  STRCHR_TEST(ink_strchr, medium, 'x');
+  JP_MEMCHR_TEST(jp_memchr, medium, 'x', med_len);
+  STRCHR_TEST(strchr, large, 'x');
+  STRCHR_TEST(ink_strchr, large, 'x');
+  JP_MEMCHR_TEST(jp_memchr, large, 'x', large_len);
+  printf("\n");
+}
+
+void
+strcmp_tests()
+{
+  printf("\nstrcmp:\n");
+  /* expect to match */
+  STRCMP_TEST(strcmp, small, small2);
+  STRCMP_TEST(strcmp, medium, medium2);
+  STRCMP_TEST(strcmp, large, large2);
+  /* expect NOT to match */
+  STRCMP_TEST(strcmp, small, "1xx");
+  STRCMP_TEST(strcmp, medium, "1xx");
+  STRCMP_TEST(strcmp, large, "1xx");
+  printf("\n");
+}
+
+void
+strcpy_tests()
+{
+  printf("\nstrcpy:\n");
+  STRCPY_TEST(strcpy, small);
+  STRCPY_TEST(strcpy, medium);
+  STRCPY_TEST(strcpy, large);
+  printf("\nmemcpy:\n");
+  MEMCPY_TEST(memcpy, small, small_len);
+  MEMCPY_TEST(memcpy, medium, med_len);
+  MEMCPY_TEST(memcpy, large, large_len);
+  MEMCPY_TEST(memcpy, small, SMALL_LEN);
+  MEMCPY_TEST(memcpy, medium, MED_LEN);
+  MEMCPY_TEST(memcpy, large, LARGE_LEN);
+
+  MEMCPY_TEST(ink_memcpy, small, small_len);
+  MEMCPY_TEST(ink_memcpy, medium, med_len);
+  MEMCPY_TEST(ink_memcpy, large, large_len);
+  MEMCPY_TEST(ink_memcpy, small, SMALL_LEN);
+  MEMCPY_TEST(ink_memcpy, medium, MED_LEN);
+  MEMCPY_TEST(ink_memcpy, large, LARGE_LEN);
+  printf("\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+  if (argc < 2) {
+    printf("usage: %s [cycles]\n", argv[0]);
+    exit(0);
+  }
+  cycles = atoi(argv[1]);
+  printf("%20s\t%10s\tspeed\n", "function", "str size");
+  printf("--------------------\t----------\t------------------\n");
+
+  strlen_tests();
+  strchr_tests();
+  strcmp_tests();
+  strcpy_tests();
+}
+
+//
+// fast memchr
+//
+void *
+ink_memchr(const void *as, int ac, size_t an)
+{
+  unsigned char c = (unsigned char) ac;
+  unsigned char *s = (unsigned char *) as;
+
+  // initial segment
+
+  int i_len = (int)(((uintptr_t) 8 - (uintptr_t) as) & 7);
+
+  // too short to concern us
+
+  if ((int) an < i_len) {
+    for (int i = 0; i < (int) an; i++)
+      if (s[i] == c)
+        return &s[i];
+    return 0;
+  }
+  // bytes 0-3
+
+  switch (i_len & 3) {
+  case 3:
+    if (*s++ == c)
+      return s - 1;
+  case 2:
+    if (*s++ == c)
+      return s - 1;
+  case 1:
+    if (*s++ == c)
+      return s - 1;
+  case 0:
+    break;
+  }
+
+  // bytes 4-8
+
+  unsigned int ib = c;
+  ib |= (ib << 8);
+  ib |= (ib << 16);
+  unsigned int im = 0x7efefeff;
+  if (i_len & 4) {
+    unsigned int ibp = *(unsigned int *) s;
+    unsigned int ibb = ibp ^ ib;
+    ibb = ((ibb + im) ^ ~ibb) & ~im;
+    if (ibb) {
+      if (s[0] == c)
+        return &s[0];
+      if (s[1] == c)
+        return &s[1];
+      if (s[2] == c)
+        return &s[2];
+      if (s[3] == c)
+        return &s[3];
+    }
+    s += 4;
+  }
+  // next 8x bytes
+  uint64_t m = 0x7efefefefefefeffLL;
+  uint64_t b = ((uint64_t) ib);
+  b |= (b << 32);
+  uint64_t *p = (uint64_t *) s;
+  unsigned int n = (((unsigned int) an) - (s - (unsigned char *) as)) >> 3;
+  uint64_t *end = p + n;
+  while (p < end) {
+    uint64_t bp = *p;
+    uint64_t bb = bp ^ b;
+    bb = ((bb + m) ^ ~bb) & ~m;
+    if (bb) {
+      s = (unsigned char *) p;
+      if (s[0] == c)
+        return &s[0];
+      if (s[1] == c)
+        return &s[1];
+      if (s[2] == c)
+        return &s[2];
+      if (s[3] == c)
+        return &s[3];
+      if (s[4] == c)
+        return &s[4];
+      if (s[5] == c)
+        return &s[5];
+      if (s[6] == c)
+        return &s[6];
+      if (s[7] == c)
+        return &s[7];
+    }
+    p++;
+  }
+
+  // terminal segement
+
+  i_len = an - (((unsigned char *) p) - ((unsigned char *) as));
+  s = (unsigned char *) p;
+
+  // n-(4..8)..n bytes
+
+  if (i_len & 4) {
+    unsigned int ibp = *(unsigned int *) s;
+    unsigned int ibb = ibp ^ ib;
+    ibb = ((ibb + im) ^ ~ibb) & ~im;
+    if (ibb) {
+      if (s[0] == c)
+        return &s[0];
+      if (s[1] == c)
+        return &s[1];
+      if (s[2] == c)
+        return &s[2];
+      if (s[3] == c)
+        return &s[3];
+    }
+    s += 4;
+  }
+  // n-(0..3)..n bytes
+
+  switch (i_len & 3) {
+  case 3:
+    if (*s++ == c)
+      return s - 1;
+  case 2:
+    if (*s++ == c)
+      return s - 1;
+  case 1:
+    if (*s++ == c)
+      return s - 1;
+  case 0:
+    break;
+  }
+  return 0;
+}
diff --git a/lib/tsconfig/BisonHeaderToC++.sed b/lib/tsconfig/BisonHeaderToC++.sed
new file mode 100644
index 00000000..abd72ecd
--- /dev/null
+++ b/lib/tsconfig/BisonHeaderToC++.sed
@@ -0,0 +1,8 @@
+1a\
+namespace ts { namespace config {\
+  enum TokenType {
+1,/^  *enum/d
+/^ *{/d
+/^  *};/a\
+}} // namespace ts::config
+/^#endif/,$d
diff --git a/lib/tsconfig/Errata.cc b/lib/tsconfig/Errata.cc
new file mode 100644
index 00000000..a3035f3a
--- /dev/null
+++ b/lib/tsconfig/Errata.cc
@@ -0,0 +1,297 @@
+/** @file
+    Errata implementation.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "Errata.h"
+# include <iostream>
+# include <sstream>
+# include <iomanip>
+# include <algorithm>
+# include <memory.h>
+
+namespace ts {
+
+/** List of sinks for abandoned erratum.
+ */
+namespace {
+  std::deque<Errata::Sink::Handle> Sink_List;
+}
+
+std::string const Errata::DEFAULT_GLUE("\n");
+Errata::Message const Errata::NIL_MESSAGE;
+Errata::Code Errata::Message::Default_Code = 0;
+Errata::Message::SuccessTest const Errata::Message::DEFAULT_SUCCESS_TEST =
+  &Errata::Message::isCodeZero;
+Errata::Message::SuccessTest Errata::Message::Success_Test =
+  Errata::Message::DEFAULT_SUCCESS_TEST;
+
+bool
+Errata::Message::isCodeZero(Message const& msg) {
+  return msg.m_code == 0;
+}
+
+void
+Errata::Data::push(Message const& msg) {
+  m_items.push_back(msg);
+}
+
+Errata::Message const&
+Errata::Data::top() const {
+  return m_items.size() ? m_items.back() : NIL_MESSAGE ;
+}
+
+inline Errata::Errata(ImpPtr const& ptr) 
+  : m_data(ptr) {
+}
+
+Errata::Data::~Data() {
+  if (m_log_on_delete) {
+    Errata tmp(this); // because client API requires a wrapper.
+    std::deque<Errata::Sink::Handle>::iterator spot, limit;
+    for ( spot = Sink_List.begin(), limit = Sink_List.end();
+          spot != limit;
+          ++spot
+    ) {
+      (**spot)(tmp);
+    }
+    tmp.m_data.release(); // don't delete this again.
+  }
+}
+
+Errata::Errata() {
+}
+
+Errata::Errata(self const& that)
+  : m_data(that.m_data) {
+}
+
+Errata::Errata(std::string const& text) {
+  this->push(text);
+}
+
+Errata::Errata(Id id, std::string const& text) {
+  this->push(id, text);
+}
+
+Errata::~Errata() {
+}
+
+/*  This forces the errata to have a data object that only it references.
+    If we're sharing the data, clone. If there's no data, allocate.
+    This is used just before a write operation to have copy on write semantics.
+ */
+Errata::Data*
+Errata::pre_write() {
+  if (m_data) {
+    if (m_data.useCount() > 1) {
+      m_data = new Data(*m_data); // clone current data
+    }
+  } else { // create new data
+    m_data = new Data;
+  }
+  return m_data.get();
+}
+
+// Just create an instance if needed.
+Errata::Data*
+Errata::instance() {
+  if (!m_data) m_data = new Data;
+  return m_data.get();
+}
+
+Errata&
+Errata::push(Message const& msg) {
+  this->pre_write()->push(msg);
+  return *this;
+}
+
+Errata&
+Errata::operator=(self const& that) {
+  m_data = that.m_data;
+  return *this;
+}
+
+Errata&
+Errata::operator = (Message const& msg) {
+  // Avoid copy on write in the case where we discard.
+  if (!m_data || m_data.useCount() > 1) {
+    this->clear();
+    this->push(msg);
+  } else {
+    m_data->m_items.clear();
+    m_data->push(msg);
+  }
+  return *this;
+}
+
+Errata&
+Errata::pull(self& that) {
+  if (that.m_data) {
+    this->pre_write();
+    m_data->m_items.insert(
+      m_data->m_items.end(),
+      that.m_data->m_items.begin(),
+      that.m_data->m_items.end()
+    );
+    that.m_data->m_items.clear();
+  }
+  return *this;
+}
+
+void
+Errata::pop() {
+  if (m_data && m_data->size()) {
+    this->pre_write()->m_items.pop_front();
+  }
+  return;
+}
+
+void
+Errata::clear() {
+  m_data.reset(0);
+}
+
+/*  We want to allow iteration on empty / nil containers because that's very
+    convenient for clients. We need only return the same value for begin()
+    and end() and everything works as expected.
+
+    However we need to be a bit more clever for VC 8.  It checks for
+    iterator compatibility, i.e. that the iterators are not
+    invalidated and that they are for the same container.  It appears
+    that default iterators are not compatible with anything.  So we
+    use static container for the nil data case.
+ */
+static Errata::Container NIL_CONTAINER;
+
+Errata::iterator
+Errata::begin() {
+  return m_data ? m_data->m_items.rbegin() : NIL_CONTAINER.rbegin();
+}
+
+Errata::const_iterator
+Errata::begin() const {
+  return m_data ? static_cast<Data const&>(*m_data).m_items.rbegin()
+    : static_cast<Container const&>(NIL_CONTAINER).rbegin();
+}
+
+Errata::iterator
+Errata::end() {
+  return m_data ? m_data->m_items.rend() : NIL_CONTAINER.rend();
+}
+
+Errata::const_iterator
+Errata::end() const {
+  return m_data ? static_cast<Data const&>(*m_data).m_items.rend()
+    : static_cast<Container const&>(NIL_CONTAINER).rend();
+}
+
+void
+Errata::registerSink(Sink::Handle const& s) {
+  Sink_List.push_back(s);
+}
+
+std::ostream&
+Errata::write(
+  std::ostream& out,
+  int offset,
+  int indent,
+  int shift,
+  char const* lead
+) const {
+  for ( const_iterator spot = this->begin(), limit = this->end();
+        spot != limit;
+        ++spot
+  ) {
+    if ((offset + indent) > 0)
+      out << std::setw(indent + offset) << std::setfill(' ')
+          << ((indent > 0 && lead) ? lead : " ");
+
+    out << spot->m_id << " [" << spot->m_code << "]: " << spot->m_text
+        << std::endl
+      ;
+    if (spot->getErrata().size())
+      spot->getErrata().write(out, offset, indent+shift, shift, lead);
+
+  }
+  return out;
+}
+
+size_t
+Errata::write(
+  char *buff,
+  size_t n,
+  int offset,
+  int indent,
+  int shift,
+  char const* lead
+) const {
+  std::ostringstream out;
+  std::string text;
+  this->write(out, offset, indent, shift, lead);
+  text = out.str();
+  memcpy(buff, text.data(), std::min(n, text.size()));
+  return text.size();
+}
+
+std::ostream& operator<< (std::ostream& os, Errata const& err) {
+  return err.write(os, 0, 0, 2, "> ");
+}
+
+# if USING_BOOST
+
+std::ostream&
+errata::format(std::ostream& s, std::string const& fmt, std::string const& glue) const {
+  return this->format(s, boost::format(fmt), glue);
+}
+
+std::ostream&
+errata::format(std::ostream& s, boost::format const& fmt, std::string const& glue) const {
+  if (_data) {
+    bool inside = false;
+    boost::format f(fmt);
+    f.exceptions(boost::io::all_error_bits ^ boost::io::too_many_args_bit);
+    const_iterator spot(this->begin()), limit(this->end());
+    while (spot != limit) {
+      if (inside) s << glue;
+      s << ( f % spot->_id % spot->_text );
+      inside = true;
+      ++spot;
+    }
+  }
+  return s;
+}
+
+std::string
+errata::format(std::string const& fmt, std::string const& glue) const {
+  return this->format(boost::format(fmt), glue);
+}
+
+std::string
+errata::format(boost::format const& fmt, std::string const& glue) const {
+  std::ostringstream s;
+  this->format(s, fmt, glue);
+  return s.str();
+}
+
+# endif
+
+} // namespace ts
+
diff --git a/lib/tsconfig/Errata.h b/lib/tsconfig/Errata.h
new file mode 100644
index 00000000..5c1d1443
--- /dev/null
+++ b/lib/tsconfig/Errata.h
@@ -0,0 +1,945 @@
+# if !defined TS_ERRATA_HEADER
+# define TS_ERRATA_HEADER
+
+/** @file
+    Stacking error message handling.
+
+    The problem addressed by this library is the ability to pass back
+    detailed error messages from failures. It is hard to get good
+    diagnostics because the specific failures and general context are
+    located in very different stack frames. This library allows local
+    functions to pass back local messages which can be easily
+    augmented as the error travels up the stack frame.
+
+    This could be done with exceptions but
+    - That is more effort to implemention
+    - Generally more expensive.
+
+    Each message on a stack contains text and a numeric identifier.
+    The identifier value zero is reserved for messages that are not
+    errors so that information can be passed back even in the success
+    case.
+
+    The implementation takes the position that success is fast and
+    failure is expensive. Therefore it is optimized for the success
+    path, imposing very little overhead. On the other hand, if an
+    error occurs and is handled, that is generally so expensive that
+    optimizations are pointless (although, of course, one should not
+    be gratuitiously expensive).
+
+    The library also provides the @c Rv ("return value") template to
+    make returning values and status easier. This template allows a
+    function to return a value and status pair with minimal changes.
+    The pair acts like the value type in most situations, while
+    providing access to the status.
+
+    Each instance of an erratum is a wrapper class that emulates value
+    semantics (copy on write). This means passing even large message
+    stacks is inexpensive, involving only a pointer copy and reference
+    counter increment and decrement. A success value is represented by
+    an internal @c NULL so it is even cheaper to copy.
+
+    To further ease use, the library has the ability to define @a
+    sinks.  A sink is a function that acts on an erratum when it
+    becomes unreferenced. The indended use is to send the messages to
+    an output log. This makes reporting errors to a log from even
+    deeply nested functions easy while preserving the ability of the
+    top level logic to control such logging.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <memory>
+# include <string>
+# include <iosfwd>
+# include <deque>
+# include "NumericType.h"
+# include "IntrusivePtr.h"
+
+# if USING_BOOST
+#   include <boost/function.hpp>
+#   include <boost/format/format_fwd.hpp>
+# endif
+
+namespace ts {
+
+/** Class to hold a stack of error messages (the "errata").
+    This is a smart handle class, which wraps the actual data
+    and can therefore be treated a value type with cheap copy
+    semantics. Default construction is very cheap.
+ */
+class Errata {
+protected:
+    /// Implementation class.
+    struct Data;
+    /// Handle for implementation class instance.
+    typedef IntrusivePtr<Data> ImpPtr;
+public:
+    typedef Errata self; /// Self reference type.
+
+    /// Message ID.
+    typedef NumericType<unsigned int, struct MsgIdTag> Id;
+
+    /* Tag / level / code severity.
+       This is intended for clients to use to provide additional
+       classification of a message. A severity code, as for syslog,
+       is a common use.
+
+    */
+    typedef NumericType<unsigned int, struct CodeTag> Code;
+    struct Message;
+
+    typedef std::deque<Message> Container; ///< Storage type for messages.
+    // We iterate backwards to look like a stack.
+//    typedef Container::reverse_iterator iterator; ///< Message iteration.
+    /// Message const iteration.
+//    typedef Container::const_reverse_iterator const_iterator;
+    /// Reverse message iteration.
+//    typedef Container::iterator reverse_iterator;
+    /// Reverse constant message iteration.
+//    typedef Container::const_iterator const_reverse_iterator;
+    
+    /// Default constructor - empty errata, very fast.
+    Errata();
+    /// Copy constructor, very fast.
+    Errata (
+        self const& that ///< Object to copy
+    );
+    /// Construct from string.
+    /// Message Id and Code are default.
+    explicit Errata(
+        std::string const& text ///< Finalized message text.
+    );
+    /// Construct with @a id and @a text.
+    /// Code is default.
+    Errata(
+      Id id, ///< Message id.
+      std::string const& text ///< Message text.
+    );
+    /// Construct with @a id, @a code, and @a text.
+    Errata(
+      Id id, ///< Message text.
+      Code code, ///< Message code.
+      std::string const& text ///< Message text.
+    );
+    /** Construct from a message instance.
+        This is equivalent to default constructing an @c errata and then
+        invoking @c push with an argument of @a msg.
+    */
+    Errata(
+      Message const& msg ///< Message to push
+    );
+
+    /// destructor
+    ~Errata();
+
+    /// Self assignment.
+    /// @return A reference to this object.
+    self& operator = (
+      const self& that ///< Source instance.
+    );
+
+    /** Assign message.
+        All other messages are discarded.
+        @return A reference to this object.
+    */
+    self& operator = (
+      Message const& msg ///< Source message.
+    );
+
+    /** Push @a text as a message.
+        The message is constructed from just the @a text.
+        It becomes the top message.
+        @return A reference to this object.
+    */
+    self& push(std::string const& text);
+    /** Push @a text as a message with message @a id.
+        The message is constructed from @a text and @a id.
+        It becomes the top message.
+        @return A reference to this object.
+    */
+    self& push(Id id, std::string const& text);
+    /** Push @a text as a message with message @a id and @a code.
+        The message is constructed from @a text and @a id.
+        It becomes the top message.
+        @return A reference to this object.
+    */
+    self& push(Id id, Code code, std::string const& text);
+    /** Push a message.
+        @a msg becomes the top message.
+        @return A reference to this object.
+    */
+    self& push(Message const& msg);
+
+    /** Push a nested status.
+        @a err becomes the top item.
+        @return A reference to this object.
+    */
+    self& push(self const& err);
+
+    /** Access top message.
+        @return If the errata is empty, a default constructed message
+        otherwise the most recent message.
+     */
+    Message const& top() const;
+
+    /** Move messages from @a that to @c this errata.
+        Messages from @a that are put on the top of the
+        stack in @c this and removed from @a that.
+    */
+    self& pull(self& that);
+
+    /// Remove last message.
+    void pop();
+
+    /// Remove all messages.
+    void clear();
+
+    /** Inhibit logging.
+        @note This only affects @c this as a top level @c errata.
+        It has no effect on this @c this being logged as a nested
+        @c errata.
+    */
+    self& doNotLog();
+
+    friend std::ostream& operator<< (std::ostream&, self const&);
+
+    /// Default glue value (a newline) for text rendering.
+    static std::string const DEFAULT_GLUE;
+
+    /** Test status.
+
+        Equivalent to @c success but more convenient for use in
+        control statements.
+
+        @return @c true if no messages or last message has a zero
+        message ID, @c false otherwise.
+     */
+    operator bool() const;
+
+    /** Test errata for no failure condition.
+
+        Equivalent to @c operator @c bool but easier to invoke.
+
+        @return @c true if no messages or last message has a zero
+        message ID, @c false otherwise.
+     */
+    bool isOK() const;
+
+    /// Number of messages in the errata.
+    size_t size() const;
+
+    /*  Forward declares.
+        We have to make our own iterators as the least bad option. The problem
+        is that we have recursive structures so declaration order is difficult.
+        We can't use the container iterators here because the element type is
+        not yet defined. If we define the element type here, it can't contain
+        an Errata and we have to do funky things to get around that. So we
+        have our own iterators, which are just shadowing sublclasses of the
+        container iterators.
+     */
+    class iterator;
+    class const_iterator;
+
+    /// Reference to top item on the stack.
+    iterator begin();
+    /// Reference to top item on the stack.
+    const_iterator begin() const;
+    //! Reference one past bottom item on the stack.
+    iterator end();
+    //! Reference one past bottom item on the stack.
+    const_iterator end() const;
+
+    // Logging support.
+
+    /** Base class for erratum sink.
+        When an errata is abandoned, this will be called on it to perform
+        any client specific logging. It is passed around by handle so that
+        it doesn't have to support copy semantics (and is not destructed
+        until application shutdown). Clients can subclass this class in order
+        to preserve arbitrary data for the sink or retain a handle to the
+        sink for runtime modifications.
+     */
+    class Sink : public IntrusivePtrCounter {
+    public:
+        typedef Sink self; ///< Self reference type.
+        typedef IntrusivePtr<self> Handle;  ///< Handle type.
+
+        /// Handle an abandoned errata.
+        virtual void operator() (Errata const&) const = 0;
+        /// Force virtual destructor.
+        virtual ~Sink() {}
+    };
+
+    //! Register a sink for discarded erratum.
+    static void registerSink(Sink::Handle const& s);
+
+    /// Register a function as a sink.
+    typedef void (*SinkHandlerFunction)(Errata const&);
+
+    // Wrapper class to support registering functions as sinks.
+    struct SinkFunctionWrapper : public Sink {
+        /// Constructor.
+        SinkFunctionWrapper(SinkHandlerFunction f) : m_f(f) { }
+        /// Operator to invoke the function.
+        virtual void operator() (Errata const& e) const { m_f(e); }
+        SinkHandlerFunction m_f; ///< Client supplied handler.
+    };
+
+    /// Register a sink function for abandonded erratum.
+    static void registerSink(SinkHandlerFunction f) {
+        registerSink(Sink::Handle(new SinkFunctionWrapper(f)));
+    }
+
+    /** Simple formatted output.
+
+        Each message is written to a line. All lines are indented with
+        whitespace @a offset characters. Lines are indented an
+        additional @a indent. This value is increased by @a shift for
+        each level of nesting of an @c Errata. if @a lead is not @c
+        NULL the indentation is overwritten by @a lead if @a indent is
+        non-zero. It acts as a "continuation" marker for nested
+        @c Errata.
+        
+     */
+    std::ostream& write(
+      std::ostream& out, ///< Output stream.
+      int offset, ///< Lead white space for every line.
+      int indent, ///< Additional indention per line for messages.
+      int shift, ///< Additional @a indent for nested @c Errata.
+      char const* lead ///< Leading text for nested @c Errata.
+    ) const;
+    /// Simple formatted output to fixed sized buffer.
+    /// @return Number of characters written to @a buffer.
+    size_t write(
+      char* buffer, ///< Output buffer.
+      size_t n, ///< Buffer size.
+      int offset, ///< Lead white space for every line.
+      int indent, ///< Additional indention per line for messages.
+      int shift, ///< Additional @a indent for nested @c Errata.
+      char const* lead ///< Leading text for nested @c Errata.
+    ) const;
+
+# if USING_BOOST
+    /// Functor type for sink.
+    typedef boost::function<void (Errata const&)> SinkFunctor;
+
+    // Wrapper class to support registering functions as sinks.
+    struct SinkFunctorWrapper : public Sink {
+        /// Constructor.
+        SinkFunctionWrapper(SinkHandlerFunctor f) : m_f(f) { }
+        /// Operator to invoke the function.
+        virtual void operator() (Errata const& e) const { m_f(e); }
+        SinkHandlerFunctor m_f; ///< Client supplied handler.
+    };
+
+    /// Register a sink function for abandonded erratum.
+    static void registerSink(SinkFunctor const& f) {
+        registerSink(Sink::Handle(new SinkFunctorWrapper(f)));
+    }
+
+    /// Generate formatted output.
+    /// For each message in the stack, invoke @c boost::format passing
+    /// @a fmt as the format string and the message ID and message text as
+    /// two values. It is not an error to elide either or both. @a glue is
+    /// sent to the stream @a s between every pair of messages.
+    /// @return The stream @a s.
+    std::ostream& format(
+        std::ostream& s,           ///< Output stream
+        boost::format const& fmt,  ///< Format string
+        std::string const& glue = DEFAULT_GLUE ///< Glue
+    ) const;
+
+    /// Generate formatted output.
+    /// A convenience overload so clients do not have to include the Boost.Format headers.
+    /// @return The formatted output.
+    /// @see std::ostream& format ( std::ostream& s, boost::format const& fmt, std::string const& glue ).
+    std::ostream& format(
+        std::ostream& s,           ///< Output stream
+        std::string const& fmt,    ///< Format string
+        std::string const& glue = DEFAULT_GLUE ///< Glue
+    ) const;
+
+    /// Generate formatted output.
+    /// For each message in the stack, invoke @c boost::format passing
+    /// @a fmt as the format string and the message ID and message text as
+    /// two values. It is not an error to elide either or both. @a glue is
+    /// added between every pair of messages.
+    /// @note This is identical to the stream variant except the output
+    /// is put in a string instead of a stream.
+    /// @return The formatted output.
+    /// @see std::ostream& format ( std::ostream& s, boost::format const& fmt, std::string const& glue ).
+    std::string format(
+        boost::format const& fmt,  ///< Format string
+        std::string const& glue = DEFAULT_GLUE ///< Glue
+    ) const;
+
+    /// Generate formatted output.
+    /// A convenience overload so clients do not have to include the Boost.Format headers.
+    /// @return The formatted output.
+    /// @see std::string format ( boost::format const& fmt, std::string const& glue ).
+    std::string format(
+        std::string const& fmt,  ///< Format string
+        std::string const& glue = DEFAULT_GLUE ///< Glue
+    ) const;
+# endif // USING_BOOST
+
+protected:
+    /// Construct from implementation pointer.
+    /// Used internally by nested classes.
+    Errata(ImpPtr const& ptr);
+    /// Implementation instance.
+    ImpPtr m_data;
+
+    /// Return the implementation instance, allocating and unsharing as needed.
+    Data* pre_write();
+    /// Force and return an implementation instance.
+    /// Does not follow copy on write.
+    Data* instance();
+
+    /// Used for returns when no data is present.
+    static Message const NIL_MESSAGE;
+
+    friend struct Data;
+    friend class Item;
+
+};
+
+extern std::ostream& operator<< (std::ostream& os, Errata const& stat);
+
+/// Storage for a single message.
+struct Errata::Message {
+  typedef Message self; ///< Self reference type.
+
+  /// Default constructor.
+  /// The message has Id = 0, default code,  and empty text.
+  Message();
+
+  /// Construct from text.
+  /// Id is zero and Code is default.
+  Message(
+    std::string const& text ///< Finalized message text.
+  );
+
+  /// Construct with @a id and @a text.
+  /// Code is default.
+  Message(
+    Id id, ///< ID of message in table.
+    std::string const& text ///< Final text for message.
+  );
+
+  /// Construct with @a id, @a code, and @a text.
+  Message(
+    Id id, ///< Message Id.
+    Code code, ///< Message Code.
+    std::string const& text ///< Final text for message.
+  );
+
+  /// Reset to the message to default state.
+  self& clear();
+
+  /// Set the message Id.
+  self& set(
+    Id id ///< New message Id.
+  );
+
+  /// Set the code.
+  self& set(
+    Code code ///< New code for message.
+  );
+
+  /// Set the text.
+  self& set(
+    std::string const& text ///< New message text.
+  );
+
+  /// Set the text.
+  self& set(
+    char const* text ///< New message text.
+  );
+
+  /// Set the errata.
+  self& set(
+    Errata const& err ///< Errata to store.
+  );
+
+  /// Get the text of the message.
+  std::string const& text() const;
+
+  /// Get the code.
+  Code getCode() const;
+  /// Get the nested status.
+  /// @return A status object, which is not @c NULL if there is a
+  /// nested status stored in this item.
+  Errata getErrata() const;
+
+  /** The default message code.
+
+      This value is used as the Code value for constructing and
+      clearing messages. It can be changed to control the value
+      used for empty messages.
+  */
+  static Code Default_Code;
+
+  /// Type for overriding success message test.
+  typedef bool (*SuccessTest)(Message const& m);
+
+  /** Success message test.
+
+      When a message is tested for being "successful", this
+      function is called. It may be overridden by a client.
+      The initial value is @c DEFAULT_SUCCESS_TEST.
+
+      @note This is only called when there are Messages in the
+      Errata. An empty Errata (@c NULL or empty stack) is always
+      a success. Only the @c top Message is checked.
+
+      @return @c true if the message indicates success,
+      @c false otherwise.
+  */
+  static SuccessTest Success_Test;
+
+  /// Indicate success if the message code is zero.
+  /// @note Used as the default success test.
+  static bool isCodeZero(Message const& m);
+
+  static SuccessTest const DEFAULT_SUCCESS_TEST;
+
+  Id m_id; ///< Message ID.
+  Code m_code; ///< Message code.
+  std::string m_text; ///< Final text.
+  Errata m_errata; ///< Nested errata.
+};
+
+/** This is the implementation class for Errata.
+
+    It holds the actual messages and is treated as a passive data
+    object with nice constructors.
+
+    We implement reference counting semantics by hand for two
+    reasons. One is that we need to do some specialized things, but
+    mainly because the client can't see this class so we can't
+*/
+struct Errata::Data : public IntrusivePtrCounter {
+  typedef Data self; ///< Self reference type.
+
+  //! Default constructor.
+  Data();
+
+  /// Destructor, to do logging.
+  ~Data();
+
+  //! Number of messages.
+  size_t size() const;
+
+  /// Get the top message on the stack.
+  Message const& top() const;
+
+  /// Put a message on top of the stack.
+  void push(Message const& msg);
+
+  /// Log this when it is deleted.
+  bool m_log_on_delete;
+
+  //! The message stack.
+  Container m_items;
+};
+
+/// Forward iterator for @c Messages in an @c Errata.
+class Errata::iterator : public Errata::Container::reverse_iterator {
+public:
+    typedef iterator self; ///< Self reference type.
+    typedef Errata::Container::reverse_iterator super; ///< Parent type.
+    iterator(); ///< Default constructor.
+    /// Copy constructor.
+    iterator(
+        self const& that ///< Source instance.
+    );
+    /// Construct from super class.
+    iterator(
+        super const& that ///< Source instance.
+    );
+    /// Assignment.
+    self& operator = (self const& that);
+    /// Assignment from super class.
+    self& operator = (super const& that);
+    /// Prefix increment.
+    self& operator ++ ();
+    /// Prefix decrement.
+    self& operator -- ();
+};
+
+/// Forward constant iterator for @c Messages in an @c Errata.
+class Errata::const_iterator : public Errata::Container::const_reverse_iterator {
+public:
+    typedef const_iterator self; ///< Self reference type.
+    typedef Errata::Container::const_reverse_iterator super; ///< Parent type.
+    const_iterator(); ///< Default constructor.
+    /// Copy constructor.
+    const_iterator(
+        self const& that ///< Source instance.
+    );
+    const_iterator(
+        super const& that ///< Source instance.
+    );
+    /// Assignment.
+    self& operator = (self const& that);
+    /// Assignment from super class.
+    self& operator = (super const& that);
+    /// Prefix increment.
+    self& operator ++ ();
+    /// Prefix decrement.
+    self& operator -- ();
+};
+
+/** Helper class for @c Rv.
+    This class enables us to move the implementation of non-templated methods
+    and members out of the header file for a cleaner API.
+ */
+struct RvBase {
+  Errata _errata;    ///< The status from the function.
+
+  /** Default constructor. */
+  RvBase();
+
+  /** Construct with specific status.
+   */
+  RvBase (
+    Errata const& s ///< Status to copy
+  );
+
+  //! Test the return value for success.
+  bool isOK() const;
+
+  /** Clear any stacked errors.
+      This is useful during shutdown, to silence irrelevant errors caused
+      by the shutdown process.
+  */
+  void clear();
+
+  /// Inhibit logging of the errata.
+  void doNotLog();
+};
+
+/** Return type for returning a value and status (errata).  In
+    general, a method wants to return both a result and a status so
+    that errors are logged properly. This structure is used to do that
+    in way that is more usable than just @c std::pair.  - Simpler and
+    shorter typography - Force use of @c errata rather than having to
+    remember it (and the order) each time - Enable assignment directly
+    to @a R for ease of use and compatibility so clients can upgrade
+    asynchronously.
+ */
+template < typename R >
+struct Rv : public RvBase {
+  typedef Rv self;       ///< Standard self reference type.
+  typedef RvBase super; ///< Standard super class reference type.
+  typedef R Result; ///< Type of result value.
+
+  Result _result;             ///< The actual result of the function.
+
+  /** Default constructor.
+      The default constructor for @a R is used.
+      The status is initialized to SUCCESS.
+  */
+  Rv();
+
+  /** Standard (success) constructor.
+
+      This copies the result and sets the status to SUCCESS.
+
+      @note Not @c explicit so that clients can return just a result
+       and have it be marked as SUCCESS.
+   */
+  Rv(
+    Result const& r  ///< The function result
+  );
+
+  /** Construct from a result and a pre-existing status object.
+
+      @internal No constructor from just an Errata to avoid
+      potential ambiguity with constructing from result type.
+   */
+  Rv(
+    Result const& r,         ///< The function result
+    Errata const& s    ///< A pre-existing status object
+  );
+
+  /** User conversion to the result type.
+
+      This makes it easy to use the function normally or to pass the
+      result only to other functions without having to extract it by
+      hand.
+  */
+  operator Result const& () const;
+
+  /** Assignment from result type.
+
+      This allows the result to be assigned to a pre-declared return
+      value structure.  The return value is a reference to the
+      internal result so that this operator can be chained in other
+      assignments to instances of result type. This is most commonly
+      used when the result is computed in to a local variable to be
+      both returned and stored in a member.
+
+      @code
+      Rv<int> zret;
+      int value;
+      // ... complex computations, result in value
+      this->m_value = zret = value;
+      // ...
+      return zret;
+      @endcode
+
+      @return A reference to the copy of @a r stored in this object.
+  */
+  Result& operator = (
+    Result const& r  ///< Result to assign
+  ) {
+    _result = r;
+    return _result;
+  }
+
+  /** Add the status from another instance to this one.
+      @return A reference to @c this object.
+  */
+  template < typename U >
+  self& push(
+    Rv<U> const& that ///< Source of status messages
+  );
+
+  /** Set the result.
+
+      This differs from assignment of the function result in that the
+      return value is a reference to the @c Rv, not the internal
+      result. This makes it useful for assigning a result local
+      variable and then returning.
+
+      @code
+      Rv<int> zret;
+      int value;
+      // ... complex computation, result in value
+      return zret.set(value);
+      @endcode
+  */
+  self& set(
+    Result const& r  ///< Result to store
+  );
+
+  /** Return the result.
+      @return A reference to the result value in this object.
+  */
+  Result& result();
+
+  /** Return the result.
+      @return A reference to the result value in this object.
+  */
+  Result const& result() const;
+
+  /** Return the status.
+      @return A reference to the @c errata in this object.
+  */
+  Errata& errata();
+
+  /** Return the status.
+      @return A reference to the @c errata in this object.
+  */
+  Errata const& errata() const;
+
+  /// Directly set the errata
+  self& operator = (
+    Errata const& status ///< Errata to assign.
+  );
+
+  /// Push a message on to the status.
+  self& push(
+    Errata::Message const& msg
+  );
+};
+
+/** Combine a function result and status in to an @c Rv.
+    This is useful for clients that want to declare the status object
+    and result independently.
+ */
+template < typename R > Rv<R>
+MakeRv(
+  R const& r,          ///< The function result
+  Errata const& s      ///< The pre-existing status object
+) {
+    return Rv<R>(r, s);
+}
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+// Inline methods.
+inline Errata::Message::Message()
+  : m_id(0), m_code(Default_Code) {
+}
+inline Errata::Message::Message(std::string const& text)
+  : m_id(0), m_code(Default_Code), m_text(text) {
+}
+inline Errata::Message::Message(Id id, std::string const& text)
+  : m_id(id), m_code(Default_Code), m_text(text) {
+}
+inline Errata::Message::Message(Id id, Code code, std::string const& text)
+  : m_id(id), m_code(code), m_text(text) {
+}
+inline Errata::Message& Errata::Message::clear() {
+  m_id = 0;
+  m_code = Default_Code;
+  m_text.erase();
+  m_errata.clear();
+  return *this;
+}
+
+inline std::string const& Errata::Message::text() const { return m_text; }
+inline Errata::Code Errata::Message::getCode() const { return m_code; }
+inline Errata Errata::Message::getErrata() const { return m_errata; }
+
+inline Errata::Message& Errata::Message::set(Id id) {
+  m_id = id;
+  return *this;
+}
+inline Errata::Message& Errata::Message::set(Code code) {
+  m_code = code;
+  return *this;
+}
+inline Errata::Message& Errata::Message::set(std::string const& text) {
+  m_text = text;
+  return *this;
+}
+inline Errata::Message& Errata::Message::set(char const* text) {
+  m_text = text;
+  return *this;
+}
+inline Errata::Message& Errata::Message::set(Errata const& err) {
+  m_errata = err;
+  m_errata.doNotLog();
+  return *this;
+}
+
+inline Errata::Errata(Id id, Code code, std::string const& text) {
+  this->push(Message(id, code, text));
+}
+inline Errata::Errata(Message const& msg) {
+  this->push(msg);
+}
+
+inline Errata::operator bool() const { return this->isOK(); }
+
+inline size_t Errata::size() const {
+  return m_data ? m_data->m_items.size() : 0;
+}
+
+inline bool Errata::isOK() const {
+  return 0 == m_data
+    || 0 == m_data->size()
+    || Message::Success_Test(this->top())
+    ;
+}
+
+inline Errata&
+Errata::push(std::string const& text) {
+  this->push(Message(text));
+  return *this;
+}
+
+inline Errata&
+Errata::push(Id id, std::string const& text) {
+  this->push(Message(id, text));
+  return *this;
+}
+
+inline Errata&
+Errata::push(Id id, Code code, std::string const& text) {
+  this->push(Message(id, code, text));
+  return *this;
+}
+
+inline Errata::Message const&
+Errata::top() const {
+  return m_data ? m_data->top() : NIL_MESSAGE;
+}
+inline Errata& Errata::doNotLog() {
+  this->instance()->m_log_on_delete = false;
+  return *this;
+}
+
+inline Errata::Data::Data() : m_log_on_delete(true) {}
+inline size_t Errata::Data::size() const { return m_items.size(); }
+
+inline Errata::iterator::iterator() { }
+inline Errata::iterator::iterator(self const& that) : super(that) { }
+inline Errata::iterator::iterator(super const& that) : super(that) { }
+inline Errata::iterator& Errata::iterator::operator = (self const& that) { this->super::operator = (that); return *this; }
+inline Errata::iterator& Errata::iterator::operator = (super const& that) { this->super::operator = (that); return *this; }
+inline Errata::iterator& Errata::iterator::operator ++ () { this->super::operator ++ (); return *this; }
+inline Errata::iterator& Errata::iterator::operator -- () { this->super::operator -- (); return *this; }
+
+inline Errata::const_iterator::const_iterator() { }
+inline Errata::const_iterator::const_iterator(self const& that) : super(that) { }
+inline Errata::const_iterator::const_iterator(super const& that) : super(that) { }
+inline Errata::const_iterator& Errata::const_iterator::operator = (self const& that) { super::operator = (that); return *this; }
+inline Errata::const_iterator& Errata::const_iterator::operator = (super const& that) { super::operator = (that); return *this; }
+inline Errata::const_iterator& Errata::const_iterator::operator ++ () { this->super::operator ++ (); return *this; }
+inline Errata::const_iterator& Errata::const_iterator::operator -- () { this->super::operator -- (); return *this; }
+
+inline RvBase::RvBase() { }
+inline RvBase::RvBase(Errata const& errata) : _errata(errata) { }
+inline bool RvBase::isOK() const { return _errata; }
+inline void RvBase::clear() { _errata.clear(); }
+inline void RvBase::doNotLog() { _errata.doNotLog(); }
+
+template < typename T > Rv<T>::Rv() { }
+template < typename T > Rv<T>::Rv(Result const& r) : _result(r) { }
+template < typename T > Rv<T>::Rv(Result const& r, Errata const& errata)
+  : super(errata)
+  , _result(r) {
+}
+template < typename T > Rv<T>::operator Result const&() const {
+  return _result;
+}
+template < typename T > T const& Rv<T>::result() const { return _result; }
+template < typename T > T& Rv<T>::result() { return _result; }
+template < typename T > Errata const& Rv<T>::errata() const { return _errata; }
+template < typename T > Errata& Rv<T>::errata() { return _errata; }
+template < typename T > Rv<T>&
+Rv<T>::set(Result const& r) {
+  _result = r;
+  return *this;
+}
+template < typename T > Rv<T>&
+Rv<T>::operator = (Errata const& errata) {
+  _errata = errata;
+  return *this;
+}
+template < typename T > Rv<T>&
+Rv<T>::push(Errata::Message const& msg) {
+  _errata.push(msg);
+  return *this;
+}
+template < typename T > template < typename U > Rv<T>&
+Rv<T>::push(Rv<U> const& that) {
+  _errata.push(that.errata());
+  return *this;
+}
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+} // namespace ts
+
+# endif // TS_ERRATA_HEADER
diff --git a/lib/tsconfig/IntrusivePtr.h b/lib/tsconfig/IntrusivePtr.h
new file mode 100644
index 00000000..937fc1d9
--- /dev/null
+++ b/lib/tsconfig/IntrusivePtr.h
@@ -0,0 +1,609 @@
+# if !defined(TS_INTRUSIVE_PTR_HEADER)
+# define TS_INTRUSIVE_PTR_HEADER
+
+/** @file
+
+    This is a simple shared pointer class for restricted use. It is not a
+    completely general class. The most significant missing feature is the
+    lack of thread safety. For its intended use, this is acceptable and
+    provides a performance improvement. However, it does restrict how the
+    class may be used.
+
+    This style of shared pointer also requires explicit support from the
+    target class, which must provide an internal reference counter.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <sys/types.h>
+# include <assert.h>
+# include <functional>
+
+namespace ts {
+
+class IntrusivePtrCounter;
+
+/** This class exists solely to be declared a friend of @c IntrusivePtrCounter.
+
+    @internal This is done because we can't declare the template a
+    friend, so rather than burden the client with the declaration we
+    do it here. It provides a single method that allows the smart pointer
+    to get access to the protected reference count.
+
+ */
+class IntrusivePtrBase {
+public:
+  /// Type used for reference counter.
+  typedef long Counter;
+protected:
+  Counter* getCounter(
+    IntrusivePtrCounter* c ///< Cast object with reference counter.
+  ) const;
+};
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+/** Reference counter mixin.
+
+    To add support for @c IntrusivePtr to class @a T, it
+    should inherit from @c IntrusivePtrCounter<T> in order to
+
+    - provide a reference count member
+    - force the reference count to initialize to zero
+    - define the add and release global functions required by @c IntrusivePtr
+
+    In general this class should be inherited publicly. This will
+    provide methods which mimic the @c Boost.shared_ptr interface ( @c
+    unique() , @c use_count() ).
+
+    If this class is not inherited publically or the destructor is
+    non-public then the host class (@a T) must declare this class ( @c
+    reference_counter<T> ) as a friend.
+
+    @internal Due to changes in the C++ standard and design decisions
+    in gcc, it is no longer possible to declare a template parameter
+    as a friend class.  (Basically, you can't use a typedef in a
+    friend declaration and gcc treats template parameters as
+    typedefs).
+
+    @note You can use this with insulated (by name only) classes. The
+    important thing is to make sure that any such class that uses @c
+    IntrusivePtr has all of its constructors and destructors declared
+    in the header and defined in the implementation translation
+    unit. If the compiler generates any of those, it will not compile
+    due to missing functions or methods
+
+  */
+class IntrusivePtrCounter {
+  friend class IntrusivePtrBase;
+public:
+  /** Copy constructor.
+
+      @internal We have to define this to explicitly _not_ copy the
+      reference count. Otherwise any client that uses a default copy
+      constructor will _copy the ref count into the new object_. That
+      way lies madness.
+  */
+
+  IntrusivePtrCounter(
+    IntrusivePtrCounter const& ///< Source object.
+  );
+  
+  /** Assignment operator.
+
+      @internal We need this for the same reason as the copy
+      constructor. The reference counter must not participate in
+      assignment.
+   */
+  IntrusivePtrCounter& operator = (
+    IntrusivePtrCounter const&
+  );
+
+protected:
+  IntrusivePtrBase::Counter m_intrusive_pointer_reference_count;
+  /// Default constructor (0 init counter).
+  /// @internal Only subclasses can access this.
+  IntrusivePtrCounter();
+};
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+/** Shared pointer.
+
+    This is a reference counted smart pointer. A single object is jointly
+    ownded by a set of pointers. When the last of the pointers is destructed
+    the target object is also destructed.
+
+    The smart pointer actions can be changed through class specific policy
+    by specializing the @c IntrusivePtrPolicy template class.
+*/
+template < typename T >
+class IntrusivePtr : private IntrusivePtrBase {
+private:	/* don't pollute client with these typedefs */
+  typedef IntrusivePtrBase super; ///< Parent type.
+  typedef IntrusivePtr self; ///< Self reference type.
+
+public:
+  /// Promote type for reference counter.
+  typedef super::Counter Counter;
+
+  /// Default constructor (0 initialized).
+  IntrusivePtr();
+  /// Construct from instance.
+  /// The instance becomes referenced and owned by the pointer.
+  IntrusivePtr(T* obj);
+  /// Destructor.
+  ~IntrusivePtr();
+
+  /// Copy constructor.
+  IntrusivePtr(const self& src);
+  /// Self assignement.
+  self& operator = (const self& src);
+  /** Assign from instance.
+      The instance becomes referenced and owned by the pointer.
+      The reference to the current object is dropped.
+  */
+  self& operator = (
+    T* obj ///< Target instance.
+  );
+
+  /** Assign from instance.
+      The instance becomes referenced and owned by the pointer.
+      The reference to the current object is dropped.
+      @note A synonym for @c operator= for compatibility.
+  */
+  self& assign (
+    T* obj ///< Target instance.
+  );
+
+  /** Assign from instance.
+      The instance becomes referenced and owned by the pointer.
+      The reference to the current object is dropped.
+  */
+  void reset(T* obj);
+  /** Clear reference without cleanup.
+
+      This unsets this smart pointer and decrements the reference
+      count, but does @b not perform any finalization on the
+      target object. This can easily lead to memory leaks and
+      in some sense vitiates the point of this class, but it is
+      occasionally the right thing to do. Use with caution.
+
+      @return @c true if there are no references upon return,
+      @c false if the reference count is not zero.
+   */
+  bool release();
+
+  /// Test if the pointer is zero (@c NULL).
+  bool isNull() const;
+
+  /// Member dereference.
+  T* operator -> () const;
+  /// Dereference.
+  T& operator *  () const;
+  /// Access raw pointer.
+  T* get() const;
+
+  /** User conversion to raw pointer.
+
+      @internal allow implicit conversion to the underlying
+      pointer. This allows for the form "if (handle)" and is not
+      particularly dangerous (as it would be for a scope_ptr or
+      shared_ptr) because the counter is carried with the object and
+      so can't get lost or duplicated.
+
+  */
+  operator T* () const;
+
+  /** Cross type construction.
+      This succeeds if an @a X* can be implicitly converted to a @a T*.
+  */
+  template <
+    typename X ///< Foreign pointer type.
+  > IntrusivePtr(
+    IntrusivePtr<X> const& that ///< Foreign pointer.
+  );
+  
+  /** Cross type assignment.
+      This succeeds if an @a X* can be implicitily converted to a @a T*.
+  */
+  template <
+    typename X ///< Foreign pointer type.
+  > self& operator = (
+    IntrusivePtr<X> const& that ///< Foreign pointer.
+  );
+
+  /// Check for multiple references.
+  /// @return @c true if more than one smart pointer references the object,
+  /// @c false otherwise.
+  bool isShared() const;
+  /// Check for a single reference (@c shared_ptr compatibility)
+  /// @return @c true if this object is not shared. 
+  bool unique() const;
+  /// Reference count.
+  /// @return Number of references.
+  Counter useCount() const;
+private:
+  T* m_obj; ///< Pointer to object.
+
+  /// Reference @a obj.
+  void set(
+    T* obj ///< Target object.
+  );
+  /// Drop the current reference.
+  void unset();
+
+  /// Get a pointer to the reference counter of the target object.
+  Counter* getCounter() const;
+};
+
+/** Pointer dynamic cast.
+    This allows a smart pointer to be cast from one type to another.
+    It must be used when the types do not implicitly convert (generally
+    a downcast).
+
+    @code
+    class A { ... };
+    class B : public A { ... };
+    IntrusivePtr<A> really_b(new B);
+    InstruivePtr<B> the_b;
+    the_b = dynamic_ptr_cast<B>(really_b);
+    @endcode
+*/
+template <
+  typename T, ///< Target type.
+  typename X ///< Source type.
+> IntrusivePtr<T> dynamic_ptr_cast(
+  IntrusivePtr<X> const& src ///< Source pointer.
+) {
+  return IntrusivePtr<T>(dynamic_cast<T*>(src.get()));
+}
+
+/** Pointer cast.
+    This allows a smart pointer to be cast from one type to another.
+    It must be used when the types do not implicitly convert (generally
+    a downcast). This uses @c static_cast and so performs only compile
+    time checks.
+
+    @code
+    class A { ... };
+    class B : public A { ... };
+    IntrusivePtr<A> really_b(new B);
+    IntrusivePtr<B> the_b;
+    the_b = ptr_cast<B>(really_b);
+    @endcode
+*/
+template <
+  typename T, ///< Target type.
+  typename X ///< Source type.
+> IntrusivePtr<T> ptr_cast(
+  IntrusivePtr<X> const& src ///< Source pointer.
+) {
+    return IntrusivePtr<T>(static_cast<T*>(src.get()));
+}
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+/** Default policy class for intrusive pointers.
+
+    This allows per type policy, although not per target instance.
+    Clients can override policy by specializing this class for the
+    target type.
+
+    @code
+    template <> IntrusivePtrPolicy<SomeType>
+      : IntrusivePtrDefaultPolicy {
+     ... Redefinition of methods and nested types ...
+    };
+    @endcode
+
+    The inherited class will provide the default definitions so you can
+    override only what is different. Although this can be omitted if you
+    override everything, it is more robust for maintenance to inherit
+    anyway.
+*/
+
+template <typename T>
+class IntrusivePtrPolicy {
+public:
+  /// Called when the pointer is dereferenced.
+  /// Default is empty (no action).
+  static void dereferenceCheck(
+    T* ///< Target object.
+  );
+
+  /** Perform clean up on a target object that is no longer referenced.
+
+      Default is calling @c delete. Any specialization that overrides this
+      @b must clean up the object. The primary use of this is to perform
+      a clean up other than @c delete.
+
+      @note When this is called, the target object reference count
+      is zero. If it is necessary to pass a smart pointer to the
+      target object, it will be necessary to call
+      @c IntrusivePtr::release to drop the reference without
+      another finalization. Further care must be taken that none of
+      the called logic keeps a copy of the smart pointer. Use with
+      caution.
+  */
+  static void finalize(
+    T* t ///< Target object.
+  );
+  /// Strict weak order for STL containers.
+  class Order
+    : public std::binary_function< IntrusivePtr<T>, IntrusivePtr<T>, bool> {
+  public:
+    /// Default constructor.
+    Order() {
+    }
+    /// Compare by raw pointer.
+    bool operator() (
+      IntrusivePtr<T> const& lhs, ///< Left hand operand.
+      IntrusivePtr<T> const& rhs ///< Right hand operand.
+    ) const; 
+  };
+};
+
+struct IntrusivePtrDefaultPolicyTag {};
+typedef IntrusivePtrPolicy<IntrusivePtrDefaultPolicyTag> IntrusivePtrDefaultPolicy;
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+/* Inline Methods */
+inline IntrusivePtrCounter::IntrusivePtrCounter()
+  : m_intrusive_pointer_reference_count(0) {
+}
+
+inline IntrusivePtrCounter::IntrusivePtrCounter(IntrusivePtrCounter const&)
+  : m_intrusive_pointer_reference_count(0) {
+}
+
+inline IntrusivePtrCounter&
+IntrusivePtrCounter::operator = (IntrusivePtrCounter const&) {
+  return *this;
+}
+
+inline IntrusivePtrBase::Counter*
+IntrusivePtrBase::getCounter(IntrusivePtrCounter* c) const {
+  return &(c->m_intrusive_pointer_reference_count);
+}
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+template < typename T > void
+IntrusivePtrPolicy<T>::dereferenceCheck(T*) {
+}
+
+template < typename T > void
+IntrusivePtrPolicy<T>::finalize(T* obj) {
+  delete obj;
+}
+
+template < typename T > bool
+IntrusivePtrPolicy<T>::Order::operator()(
+  IntrusivePtr<T> const& lhs,
+  IntrusivePtr<T> const& rhs
+) const {
+  return lhs.get() < rhs.get();
+}
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+template < typename T >
+IntrusivePtr<T>::IntrusivePtr()
+  : m_obj(0) {
+}
+
+template < typename T >
+IntrusivePtr<T>::IntrusivePtr(T* obj) {
+  this->set(obj);
+}
+
+template < typename T >
+IntrusivePtr<T>::~IntrusivePtr() {
+  this->unset();
+}
+
+template < typename T >
+IntrusivePtr<T>::IntrusivePtr(const self& that) {
+  this->set(that.m_obj);
+}
+
+template < typename T >
+template < typename X >
+IntrusivePtr<T>::IntrusivePtr(
+  IntrusivePtr<X> const& that ///< Foreign pointer.
+) : super(that.get()) {
+}
+  
+template < typename T > IntrusivePtr<T>&
+IntrusivePtr<T>::operator = (const self& that) {
+  this->reset(that.m_obj);
+  return *this;
+}
+
+template < typename T >
+template < typename X >
+IntrusivePtr<T>&
+IntrusivePtr<T>::operator = (
+  IntrusivePtr<X> const& that ///< Foreign pointer.
+) { 
+  this->reset(that.get());
+  return *this;
+}
+
+template < typename T > IntrusivePtr<T>&
+IntrusivePtr<T>::operator = (T* obj) {
+  this->reset(obj);
+  return *this;
+}
+
+template < typename T > IntrusivePtr<T>&
+IntrusivePtr<T>::assign (T* obj) {
+  return *this = obj;
+}
+
+template < typename T > T*
+IntrusivePtr<T>::operator -> () const {
+  IntrusivePtrPolicy<T>::dereferenceCheck(m_obj);
+  return m_obj;
+}
+
+template < typename T > T&
+IntrusivePtr<T>::operator * () const {
+  IntrusivePtrPolicy<T>::dereferenceCheck(m_obj);
+  return *m_obj;
+}
+
+template < typename T > T*
+IntrusivePtr<T>::get() const {
+  IntrusivePtrPolicy<T>::dereferenceCheck(m_obj);
+  return m_obj;
+}
+
+template < typename T > typename IntrusivePtr<T>::Counter*
+IntrusivePtr<T>::getCounter() const {
+  return super::getCounter(static_cast<IntrusivePtrCounter*>(m_obj));
+}
+
+/* The Set/Unset methods are the basic implementation of our
+ * reference counting. The Reset method is the standard way
+ * of invoking the pair, although splitting them allows some
+ * additional efficiency in certain situations.
+ */
+
+/* set and unset are two half operations that don't do checks.
+   It is the callers responsibility to do that.
+*/
+
+template < typename T > void
+IntrusivePtr<T>::unset() {
+  if (0 != m_obj) {
+    /* magic: our target is required to inherit from IntrusivePtrCounter,
+     * which provides a protected counter variable and access via our
+     * super class. We call the super class method to get a raw pointer
+     * to the counter variable.
+     */
+    Counter* cp = this->getCounter();
+
+    /* If you hit this assert you've got a cycle of objects that
+       reference each other. A delete in the cycle will eventually
+       result in one of the objects getting deleted twice, which is
+       what this assert indicates.
+    */
+    assert(*cp);
+
+    if (0 == --*cp) {
+      IntrusivePtrPolicy<T>::finalize(m_obj);
+    }
+    m_obj = 0;
+  }
+}
+
+template < typename T > void
+IntrusivePtr<T>::set(T* obj) {
+  m_obj = obj;	/* update to new object */
+  if (0 != m_obj) /* if a real object, bump the ref count */
+    ++(*(this->getCounter()));
+}
+
+template < typename T > void
+IntrusivePtr<T>::reset(T* obj) {
+  if (obj != m_obj) {
+    this->unset();
+    this->set(obj);
+  }
+}
+
+template < typename T > bool
+IntrusivePtr<T>::release() {
+  bool zret = true;
+  if (m_obj) {
+    Counter* cp = this->getCounter();
+    zret = *cp <= 1;
+    // If the client is using this method, they're doing something funky
+    // so be extra careful with the reference count.
+    if (*cp > 0) --*cp;
+    m_obj = 0;
+  }
+  return zret;
+}
+
+/* Simple method to check for invalid pointer */
+template < typename T > bool
+IntrusivePtr<T>::isNull() const {
+  return 0 == m_obj;
+}
+
+/* Pointer comparison */
+template < typename T > bool
+operator == (IntrusivePtr<T> const& lhs, IntrusivePtr<T> const& rhs) {
+  return lhs.get() == rhs.get();
+}
+
+template < typename T > bool
+operator != (IntrusivePtr<T> const& lhs, IntrusivePtr<T> const& rhs) {
+  return lhs.get() != rhs.get();
+}
+
+template < typename T > bool
+operator < (IntrusivePtr<T> const& lhs, IntrusivePtr<T> const& rhs) {
+  return lhs.get() < rhs.get();
+}
+
+template < typename T > bool
+operator == (IntrusivePtr<T> const& lhs, int rhs) {
+  assert(0 == rhs);
+  return lhs.get() == 0;
+}
+
+template < typename T > bool
+operator == (int lhs, IntrusivePtr<T> const& rhs) {
+  assert(0 == lhs);
+  return rhs.get() == 0;
+}
+
+template < typename T > bool
+operator != (int lhs, IntrusivePtr<T> const& rhs) {
+  return !(lhs == rhs);
+}
+
+template < typename T > bool
+operator != (IntrusivePtr<T> const& lhs, int rhs) {
+  return !(lhs == rhs);
+}
+
+template < typename T >
+IntrusivePtr<T>::operator T* () const {
+  return m_obj;
+}
+
+template < typename T> bool
+IntrusivePtr<T>::isShared() const {
+  return m_obj && *(this->getCounter()) > 1;
+}
+
+template < typename T> bool
+IntrusivePtr<T>::unique() const {
+  return 0 == m_obj || *(this->getCounter()) <= 1;
+}
+
+template < typename T> typename IntrusivePtr<T>::Counter
+IntrusivePtr<T>::useCount() const {
+  return m_obj ? *(this->getCounter()) : 0;
+}
+/* ----------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------- */
+} // namespace ats
+/* ----------------------------------------------------------------------- */
+# endif // TS_INTRUSIVE_PTR_HEADER
diff --git a/lib/tsconfig/Makefile.am b/lib/tsconfig/Makefile.am
new file mode 100644
index 00000000..7625150c
--- /dev/null
+++ b/lib/tsconfig/Makefile.am
@@ -0,0 +1,59 @@
+# Makefile.am for TS Config module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+lib_LTLIBRARIES = libtsconfig.la
+noinst_PROGRAMS = test-tsconfig
+libtsconfig_la_LDFLAGS = -no-undefined -version-info @TS_LIBTOOL_VERSION@
+
+AM_CFLAGS += @FLEX_CFLAGS@
+AM_YFLAGS = --yacc -d -p tsconfig
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib 
+
+BUILT_SOURCES = \
+  TsConfigGrammar.c TsConfigGrammar.h TsConfigGrammar.hpp \
+  TsConfigSyntax.c 
+
+CLEANFILES = $(BUILT_SOURCES)
+
+libtsconfig_la_SOURCES = \
+  Errata.cc \
+  Errata.h \
+  IntrusivePtr.h \
+  NumericType.h \
+  TsBuilder.cc \
+  TsBuilder.h \
+  TsConfigGrammar.y \
+  TsConfigLexer.h \
+  TsConfigParseEvents.h \
+  TsConfigSyntax.l \
+  TsConfigTypes.h \
+  TsErrataUtil.cc \
+  TsErrataUtil.h \
+  TsValue.cc \
+  TsValue.h
+
+test_tsconfig_SOURCES = test-tsconfig.cc
+
+test_tsconfig_LDADD = libtsconfig.la ../ts/libtsutil.la
+
+# Strip to just the enum in the ts::config namespace so we can use
+# it more easily in C++.
+TsConfigGrammar.hpp: TsConfigGrammar.h BisonHeaderToC++.sed
+	$(SED) -f $(srcdir)/BisonHeaderToC++.sed TsConfigGrammar.h > $@
diff --git a/lib/tsconfig/Makefile.in b/lib/tsconfig/Makefile.in
new file mode 100644
index 00000000..88b7142e
--- /dev/null
+++ b/lib/tsconfig/Makefile.in
@@ -0,0 +1,1034 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for TS Config module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
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+  else \
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+  -I$(top_srcdir)/lib 
+
+BUILT_SOURCES = \
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+  TsConfigSyntax.c 
+
+CLEANFILES = $(BUILT_SOURCES)
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+  Errata.cc \
+  Errata.h \
+  IntrusivePtr.h \
+  NumericType.h \
+  TsBuilder.cc \
+  TsBuilder.h \
+  TsConfigGrammar.y \
+  TsConfigLexer.h \
+  TsConfigParseEvents.h \
+  TsConfigSyntax.l \
+  TsConfigTypes.h \
+  TsErrataUtil.cc \
+  TsErrataUtil.h \
+  TsValue.cc \
+  TsValue.h
+
+test_tsconfig_SOURCES = test-tsconfig.cc
+test_tsconfig_LDADD = libtsconfig.la ../ts/libtsutil.la
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+	$(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .cc .l .lo .o .obj .y
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/tsconfig/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/tsconfig/Makefile
+.PRECIOUS: Makefile
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+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
+	}
+
+uninstall-libLTLIBRARIES:
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+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(libdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$f"; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+TsConfigGrammar.h: TsConfigGrammar.c
+	@if test ! -f $@; then rm -f TsConfigGrammar.c; else :; fi
+	@if test ! -f $@; then $(MAKE) $(AM_MAKEFLAGS) TsConfigGrammar.c; else :; fi
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+libtsconfig.la: $(libtsconfig_la_OBJECTS) $(libtsconfig_la_DEPENDENCIES) $(EXTRA_libtsconfig_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(libtsconfig_la_LINK) -rpath $(libdir) $(libtsconfig_la_OBJECTS) $(libtsconfig_la_LIBADD) $(LIBS)
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+clean-noinstPROGRAMS:
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+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+test-tsconfig$(EXEEXT): $(test_tsconfig_OBJECTS) $(test_tsconfig_DEPENDENCIES) $(EXTRA_test_tsconfig_DEPENDENCIES) 
+	@rm -f test-tsconfig$(EXEEXT)
+	$(AM_V_CXXLD)$(CXXLINK) $(test_tsconfig_OBJECTS) $(test_tsconfig_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
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+distclean-compile:
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+GTAGS:
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
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+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) check-am
+all-am: Makefile $(LTLIBRARIES) $(PROGRAMS)
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-rm -f TsConfigGrammar.c
+	-rm -f TsConfigGrammar.h
+	-rm -f TsConfigSyntax.c
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	clean-noinstPROGRAMS mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES
+
+.MAKE: all check install install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libLTLIBRARIES clean-libtool clean-noinstPROGRAMS \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-libLTLIBRARIES \
+	install-man install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-libLTLIBRARIES
+
+
+# Strip to just the enum in the ts::config namespace so we can use
+# it more easily in C++.
+TsConfigGrammar.hpp: TsConfigGrammar.h BisonHeaderToC++.sed
+	$(SED) -f $(srcdir)/BisonHeaderToC++.sed TsConfigGrammar.h > $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/tsconfig/NumericType.h b/lib/tsconfig/NumericType.h
new file mode 100644
index 00000000..6216187f
--- /dev/null
+++ b/lib/tsconfig/NumericType.h
@@ -0,0 +1,182 @@
+# if !defined(TS_NUMERIC_TYPE_HEADER)
+# define TS_NUMERIC_TYPE_HEADER
+
+/** @file
+
+    Create a distinct type from a builtin numeric type.
+
+    This template class converts a basic type into a class, so that
+    instances of the class act like the basic type in normal use but
+    as a distinct type when evaluating overloads. This is very handy
+    when one has several distinct value types that map to the same
+    basic type. That means we can have overloads based on the type
+    even though the underlying basic type is the same. The second
+    template argument, X, is used only for distinguishing
+    instantiations of the template with the same base type. It doesn't
+    have to exist. One can declare an instantiation like
+
+    @code
+    typedef NumericType<int, struct some_random_tag_name> some_random_type;
+    @endcode
+
+    It is not necessary to ever mention some_random_tag_name
+    again. All we need is the entry in the symbol table.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <limits>
+
+namespace ts {
+
+// Forward declare.
+template < typename T, typename X > class NumericType;
+
+/// @cond NOT_DOCUMENTED
+/** Support template for resolving operator ambiguity.
+
+    Not for client use.
+
+    @internal This resolves a problem when @a T is not @c int.  In
+    that case, because raw numbers are @c int the overloading rule
+    changes creates an ambiguity - gcc won't distinguish between class
+    methods and builtins because @c NumericType has a user conversion
+    to @a T. So signature <tt>(NumericType, T)</tt> and <tt>(T,
+    int)</tt> are considered equivalent. This defines the @c int
+    operators explicitly. We inherit it so if @a T is @c int, these
+    are silently overridden.
+
+    @internal Note that we don't have to provide an actual implementation
+    for these operators. Funky, isn't it?
+*/
+template <
+  typename T, ///< Base numeric type.
+  typename X ///< Distinguishing tag type.
+> class NumericTypeIntOperators {
+public:
+    NumericType<T,X>& operator += ( int t );
+    NumericType<T,X>& operator -= ( int t );
+
+    // Must have const and non-const versions.
+    NumericType<T,X> operator +  ( int t );
+    NumericType<T,X> operator -  ( int t );
+    NumericType<T,X> operator +  ( int t ) const;
+    NumericType<T,X> operator -  ( int t ) const;
+};
+
+template < typename T, typename X > NumericType<T,X>
+operator + ( int t, NumericTypeIntOperators<T,X> const& );
+
+template < typename T, typename X > NumericType<T,X>
+operator - ( int t, NumericTypeIntOperators<T,X> const& );
+
+/// @endcond
+
+/** Numeric type template.
+
+    @internal One issue is that this is not a POD and so doesn't work
+    with @c printf. I will need to investigate what that would take.
+ */
+template <
+  typename T, ///< Base numeric type.
+  typename X ///< Distinguishing tag type.
+> class NumericType : public NumericTypeIntOperators<T,X> {
+public:
+    typedef T raw_type; //!< Base builtin type.
+    typedef NumericType self; //!< Self reference type.
+
+    /// @cond NOT_DOCUMENTED
+    // Need to import these to avoid compiler problems.
+    using NumericTypeIntOperators<T,X>::operator +=;
+    using NumericTypeIntOperators<T,X>::operator -=;
+    using NumericTypeIntOperators<T,X>::operator +;
+    using NumericTypeIntOperators<T,X>::operator -;
+    /// @endcond
+
+    /// Default constructor, uninitialized.
+    NumericType();
+    //! Construct from implementation type.
+    NumericType(
+      raw_type const t ///< Initialized value.
+    );
+    //! Assignment from implementation type.
+    NumericType & operator = (raw_type const t);
+    //! Self assignment.
+    NumericType & operator = (self const& that);
+
+    /// User conversion to implementation type.
+    /// @internal If we have just a single const method conversion to a copy
+    /// of the @c raw_type then the stream operators don't work. Only a CR
+    /// conversion operator satisifies the argument matching.
+    operator raw_type const& () const { return _t; }
+    /// User conversion to implementation type.
+    operator raw_type& () { return _t; }
+    /// Explicit conversion to host type
+    raw_type raw() const { return _t; }
+
+    // User conversions to raw type provide the standard comparison operators.
+    self& operator += ( self const& that );
+    self& operator -= ( self const& that );
+
+    self& operator += ( raw_type t );
+    self& operator -= ( raw_type t );
+
+    self operator +  ( self const& that );
+    self operator -  ( self const& that );
+
+    self operator +  ( raw_type t );
+    self operator -  ( raw_type t );
+
+    self& operator ++();
+    self operator ++(int);
+    self& operator --();
+    self operator --(int);
+
+private:
+    raw_type   _t;
+};
+
+// Method definitions.
+template < typename T, typename X > NumericType<T,X>::NumericType() { }
+template < typename T, typename X > NumericType<T,X>::NumericType(raw_type const t) : _t(t) { }
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator = (raw_type const t) { _t = t; return *this; }
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator = (self const& that) { _t = that._t; return *this; }
+
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator += ( self const& that ) { _t += that._t; return *this; }
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator -= ( self const& that ) { _t -= that._t; return *this; }
+template < typename T, typename X > NumericType<T,X> NumericType<T,X>::operator +  ( self const& that ) { return self(_t + that._t); }
+template < typename T, typename X > NumericType<T,X> NumericType<T,X>::operator -  ( self const& that ) { return self(_t - that._t); }
+
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator += ( raw_type t ) { _t += t; return *this; }
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator -= ( raw_type t ) { _t -= t; return *this; }
+template < typename T, typename X > NumericType<T,X> NumericType<T,X>::operator +  ( raw_type t ) { return self(_t + t); }
+template < typename T, typename X > NumericType<T,X> NumericType<T,X>::operator -  ( raw_type t ) { return self(_t - t); }
+
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator ++() { ++_t; return *this; }
+template < typename T, typename X > NumericType<T,X>& NumericType<T,X>::operator --() { --_t; return *this; }
+template < typename T, typename X > NumericType<T,X> NumericType<T,X>::operator ++(int) { self tmp(*this); ++_t; return tmp; }
+template < typename T, typename X > NumericType<T,X> NumericType<T,X>::operator --(int) { self tmp(*this); --_t; return tmp; }
+
+template < typename T, typename X > NumericType<T,X> operator +  ( T const& lhs, NumericType<T,X> const& rhs ) { return rhs + lhs; }
+template < typename T, typename X > NumericType<T,X> operator -  ( T const& lhs, NumericType<T,X> const& rhs ) { return NumericType<T,X>(lhs - rhs.raw()); }
+
+/* ----------------------------------------------------------------------- */
+} /* end namespace ts */
+/* ----------------------------------------------------------------------- */
+# endif // TS_NUMERIC_TYPE_HEADER
diff --git a/lib/tsconfig/TsBuilder.cc b/lib/tsconfig/TsBuilder.cc
new file mode 100644
index 00000000..efba4bb8
--- /dev/null
+++ b/lib/tsconfig/TsBuilder.cc
@@ -0,0 +1,214 @@
+/** @file
+
+    Implementation of the handler for parsing events.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "TsBuilder.h"
+# include "TsErrataUtil.h"
+# include "TsConfigLexer.h"
+# include "TsConfigGrammar.hpp"
+# include <stdlib.h>
+
+// Prefix for text of our messages.
+# define PRE "Configuration Parser: "
+
+namespace {
+/** Compress a string by removing escape characters.
+    @return The new length of the string.
+*/
+size_t unescape_string(char* text, size_t len) {
+  size_t zret = len;
+  // quick check - if no escape char, do nothing.
+  char* dst = static_cast<char*>(memchr(text, '\\', len));
+  if (dst) {
+    char* limit = text + len;
+    char* src = dst + 1; // skip escape char
+    for ( *dst++ = *src++ ; src < limit ; ++src )
+      if ('\\' != *src) *dst++ = *src;
+      else if (++src < limit) *dst++ = *src;
+      else *dst++ = '\\'; // trailing backslash.
+    zret = dst - text;
+  }
+  return zret;
+}
+} // anon namespace
+
+namespace ts { namespace config {
+
+Builder&
+Builder::init() {
+  // Fill in each element to dispatch through the static
+  // method. Callback data is a pointer to an entry in @c dispatch
+  // which contains pointer to this object and a pointer to the
+  // appropriate dispatch method.
+
+  // Zero everything first, just to be safe.
+  memset(_dispatch, 0, sizeof(_dispatch));
+
+  for ( size_t i = 0 ; i < TS_CONFIG_N_EVENT_TYPES ; ++i) {
+    _dispatch[i]._ptr = this;
+    _handlers.handler[i]._f = &self::dispatch;
+    _handlers.handler[i]._data = &(_dispatch[i]);
+  }
+
+  _dispatch[TsConfigEventGroupOpen]._method = &self::groupOpen;
+  _dispatch[TsConfigEventGroupName]._method = &self::groupName;
+  _dispatch[TsConfigEventGroupClose]._method = &self::groupClose;
+  _dispatch[TsConfigEventListOpen]._method = &self::listOpen;
+  _dispatch[TsConfigEventListClose]._method = &self::listClose;
+  _dispatch[TsConfigEventPathOpen]._method = &self::pathOpen;
+  _dispatch[TsConfigEventPathTag]._method = &self::pathTag;
+  _dispatch[TsConfigEventPathIndex]._method = &self::pathIndex;
+  _dispatch[TsConfigEventPathClose]._method = &self::pathClose;
+  _dispatch[TsConfigEventLiteralValue]._method = &self::literalValue;
+  _dispatch[TsConfigEventInvalidToken]._method = &self::invalidToken;
+
+  _handlers.error._data = this;
+  _handlers.error._f = &self::syntaxErrorDispatch;
+
+  return *this;
+}
+
+// Error messages here have to just be logged, as they effectively report that
+// the dispatcher can't find the builder object.
+void
+Builder::dispatch(void* data, Token* token) {
+    if (data) {
+        Handler* handler = reinterpret_cast<Handler*>(data);
+        if (handler->_ptr) {
+            if (handler->_method) {
+                ((handler->_ptr)->*(handler->_method))(*token);
+            } else {
+                msg::logf(msg::WARN, PRE "Unable to dispatch event - no method.");
+            }
+        } else {
+            msg::logf(msg::WARN, PRE "Unable to dispatch event - no builder.");
+        }
+    } else {
+        msg::logf(msg::WARN, PRE "Unable to dispatch event - no handler.");
+    }
+}
+
+int
+Builder::syntaxErrorDispatch(void* data, char const* text) {
+    return reinterpret_cast<Builder*>(data)->syntaxError(text);
+}
+
+int
+Builder::syntaxError(char const* text) {
+  msg::logf(_errata, msg::WARN,
+    "Syntax error '%s' near line %d, column %d.",
+    text, tsconfiglex_current_line(), tsconfiglex_current_col()
+  );
+  return 0;
+}
+
+Rv<Configuration>
+Builder::build(Buffer const& buffer) {
+  _v = _config.getRoot(); // seed current value.
+  _errata.clear(); // no errors yet.
+  tsconfig_parse_buffer(&_handlers, buffer._ptr, buffer._size);
+  return MakeRv(_config, _errata);
+}
+
+void
+Builder::groupOpen(Token const& token) {
+    _v = _v.makeGroup(_name);
+    _v.setSource(token._loc._line, token._loc._col);
+}
+void Builder::groupClose(Token const&) {
+    _v = _v.getParent();
+}
+void Builder::groupName(Token const& token) {
+    _name.set(token._s, token._n);
+}
+void Builder::listOpen(Token const& token) {
+    _v = _v.makeList(_name);
+    _v.setSource(token._loc._line, token._loc._col);
+}
+void Builder::listClose(Token const&) {
+    _v = _v.getParent();
+}
+
+void Builder::pathOpen(Token const&) {
+    _path.reset();
+    _extent.reset();
+}
+void Builder::pathTag(Token const& token) {
+    _path.append(Buffer(token._s, token._n));
+    if (_extent._ptr) {
+      _extent._size = token._s - _extent._ptr + token._n;
+    } else {
+      _extent.set(token._s, token._n);
+      _loc = token._loc;
+    }
+}
+void Builder::pathIndex(Token const& token){
+    // We take advantage of the lexer - token will always be a valid
+    // digit string that is followed by a non-digit or the FLEX
+    // required double null at the end of the input buffer.
+    _path.append(Buffer(0, static_cast<size_t>(atol(token._s))));
+    if (_extent._ptr) _extent._size = token._s - _extent._ptr + token._n;
+    else _extent.set(token._s, token._n);
+}
+
+void Builder::pathClose(Token const&) {
+    Rv<Value> cv = _v.makePath(_path, _name);
+    if (cv.isOK()) {
+      cv.result().setText(_extent).setSource(_loc._line, _loc._col);
+      // Terminate path. This will overwrite trailing whitespace or
+      // the closing angle bracket, both of which are expendable.
+      _extent._ptr[_extent._size] = 0;
+    }
+    _name.reset();
+    _extent.reset();
+}
+
+void Builder::literalValue(Token const& token) {
+    Rv<Value> cv;
+    Buffer text(token._s, token._n);
+
+    // It's just too painful to use these strings with standard
+    // libraries without nul terminating. For strings we convert the
+    // trailing quote. For integers we abuse the fact that the parser
+    // can't reduce using this token before the lexer has read at
+    // least one char ahead.
+
+    // Note the nul is *not* included in the reported length.
+
+    if (INTEGER == token._type) {
+        cv = _v.makeInteger(text, _name);
+        token._s[token._n] = 0;
+    } else if (STRING == token._type) {
+        ++text._ptr, text._size -= 2;  // Don't include the quotes.
+        text._size = unescape_string(text._ptr, text._size);
+        text._ptr[text._size] = 0; // OK because we have the trailing quote.
+        cv = _v.makeString(text, _name);
+    } else {
+        msg::logf(_errata, msg::WARN, PRE "Unexpected literal type %d.", token._type);
+    }
+    if (!cv.isOK()) _errata.pull(cv.errata());
+    if (cv.result()) cv.result().setSource(token._loc._line, token._loc._col);
+    _name.set(0,0); // used, so clear it.
+}
+void Builder::invalidToken(Token const&) { }
+
+}} // namespace ts::config
diff --git a/lib/tsconfig/TsBuilder.h b/lib/tsconfig/TsBuilder.h
new file mode 100644
index 00000000..815e195d
--- /dev/null
+++ b/lib/tsconfig/TsBuilder.h
@@ -0,0 +1,101 @@
+# if ! defined(TS_CONFIG_BUILDER_HEADER)
+# define TS_CONFIG_BUILDER_HEADER
+
+/** @file
+
+    Header for handler for parsing events.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "TsValue.h"
+# include "TsConfigTypes.h"
+# include "TsConfigParseEvents.h"
+
+namespace ts { namespace config {
+
+/** Class to build the configuration table from parser events.
+ */
+class Builder {
+public:
+    typedef Builder self;
+    struct Handler {
+        self* _ptr; ///< Pointer to Builder instance.
+        /// Pointer to method to invoke for this event.
+        void (self::*_method)(Token const& token);
+
+        /// Default constructor.
+        Handler();
+    };
+
+    /// Default constructor.
+    Builder();
+    /// Destructor.
+    virtual ~Builder() {}
+    /// Construct with existing configuration.
+    Builder(Configuration const& config);
+    /// Build the table.
+    /// @return The configuration or error status.
+    Rv<Configuration> build(
+        Buffer const& buffer ///< Input text.
+    );
+protected:
+    /// Dispatch table for parse events.
+    Handler _dispatch[TS_CONFIG_N_EVENT_TYPES];
+    /// Event handler table for the parser.
+    TsConfigHandlers _handlers;
+    /// Dispatch methods
+    virtual void groupOpen(Token const& token);
+    virtual void groupClose(Token const& token);
+    virtual void groupName(Token const& token);
+    virtual void listOpen(Token const& token);
+    virtual void listClose(Token const& token);
+    virtual void pathOpen(Token const& token);
+    virtual void pathTag(Token const& token);
+    virtual void pathIndex(Token const& token);
+    virtual void pathClose(Token const& token);
+    virtual void literalValue(Token const& token);
+    virtual void invalidToken(Token const& token);
+    /// Syntax error handler
+    virtual int syntaxError(char const* text);
+    /// Static method to handle parser event callbacks.
+    static void dispatch(void* data, Token* token);
+    /// Static method for syntax errors.
+    static int syntaxErrorDispatch(void* data, char const* text);
+
+    // Building state.
+    Configuration _config; ///< Configuration to update.
+    Errata _errata; ///< Error accumulator.
+    Value _v; ///< Current value.
+    Buffer _name; ///< Pending group name, if any.
+    Buffer _extent; ///< Accumulator for multi-token text.
+    Location _loc; ///< Cache for multi-token text.
+    Path _path; ///< Path accumulator
+
+    /// Initialization, called from constructors.
+    self& init();
+};
+
+inline Builder::Handler::Handler() : _ptr(0), _method(0) { }
+inline Builder::Builder() { this->init(); }
+inline Builder::Builder(Configuration const& config) : _config(config) { this->init(); }
+
+}} // namespace ts::config
+
+# endif // TS_CONFIG_BUILDER_HEADER
diff --git a/lib/tsconfig/TsConfigGrammar.y b/lib/tsconfig/TsConfigGrammar.y
new file mode 100644
index 00000000..d33eb46a
--- /dev/null
+++ b/lib/tsconfig/TsConfigGrammar.y
@@ -0,0 +1,121 @@
+%code requires {
+/** @file
+
+    TS Configuration grammar.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+}
+
+%code top {
+# include "TsConfigTypes.h"
+# include <stdlib.h>
+
+// Inhibit Bison definitions.
+# define YYMALLOC malloc
+# define YYFREE free
+
+# include "TsConfigParseEvents.h"
+# include "ts/ink_defs.h"
+
+// Types we need for the lexer.
+typedef void* yyscan_t;
+extern int tsconfiglex(YYSTYPE* yylval, yyscan_t lexer);
+
+}
+
+%code {
+
+# define HANDLE_EVENT(x,y)                                                   \
+  if (handlers) {                                                            \
+    struct TsConfigEventHandler* h = &(handlers->handler[TsConfigEvent##x]); \
+    if (h->_f) h->_f(h->_data, &(y));                                        \
+  }
+
+int tsconfigerror(
+  yyscan_t lexer ATS_UNUSED,
+  struct TsConfigHandlers* handlers,
+  char const* text
+) {
+  return (handlers && handlers->error._f)
+    ? handlers->error._f(handlers->error._data, text)
+    : 0
+    ;
+}
+
+}
+
+%token STRING
+%token IDENT
+%token INTEGER
+%token LIST_OPEN
+%token LIST_CLOSE
+%token GROUP_OPEN
+%token GROUP_CLOSE
+%token PATH_OPEN
+%token PATH_CLOSE
+%token PATH_SEPARATOR
+%token SEPARATOR
+%token ASSIGN
+
+%error-verbose
+%define api.pure
+%parse-param { yyscan_t lexer }
+%parse-param { struct TsConfigHandlers* handlers }
+%lex-param { yyscan_t lexer }
+
+%%
+
+config: group_items;
+
+group: group_open group_items group_close ;
+
+group_open: GROUP_OPEN { HANDLE_EVENT(GroupOpen, $1); } ;
+
+group_close: GROUP_CLOSE { HANDLE_EVENT(GroupClose, $1); } ;
+
+group_items: /* empty */ | group_items assign separator | group_items error separator ;
+
+assign: IDENT ASSIGN { HANDLE_EVENT(GroupName, $1); } value ;
+
+list: list_open list_items list_close ;
+
+list_open: LIST_OPEN { HANDLE_EVENT(ListOpen, $1); } ;
+
+list_close: LIST_CLOSE { HANDLE_EVENT(ListClose, $1); } ;
+
+list_items: /* empty */ | list_items value separator | list_items error separator;
+
+value: literal { HANDLE_EVENT(LiteralValue, $1); } | list | group | path;
+
+literal: STRING | IDENT | INTEGER ;
+
+separator: /* empty */ | SEPARATOR ;
+
+path: path_open path_item path_close;
+
+path_open: PATH_OPEN { HANDLE_EVENT(PathOpen, $1); }
+
+path_close: PATH_CLOSE { HANDLE_EVENT(PathClose, $1); }
+
+path_item: path_tag | path_item PATH_SEPARATOR path_tag ;
+
+path_tag: IDENT { HANDLE_EVENT(PathTag, $1); } | INTEGER { HANDLE_EVENT(PathIndex, $1); };
+
+%%
diff --git a/lib/tsconfig/TsConfigLexer.h b/lib/tsconfig/TsConfigLexer.h
new file mode 100644
index 00000000..40262ed6
--- /dev/null
+++ b/lib/tsconfig/TsConfigLexer.h
@@ -0,0 +1,61 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+# if ! defined(TS_CONFIG_LEXER_HEADER)
+# define TS_CONFIG_LEXER_HEADER
+
+struct TsConfigHandlers; // forward declare.
+
+# if defined(__cplusplus)
+    extern "C" {
+# endif
+
+/// Get the current line in the buffer during parsing.
+/// @return 1 based line number.
+extern int tsconfiglex_current_line(void);
+/// Get the current column in the buffer during parsing.
+/// @return 0 base column number.
+extern int tsconfiglex_current_col(void);
+
+/** Parse @a buffer.
+
+    The @a buffer is parsed and the events dispatched via @a handlers.
+
+    @note The contents of @a buffer are in general modified to handle
+    null termination and processing escape codes in strings. Tokens
+    passed to the handlers are simply offsets in to @a buffer and
+    therefore have the same lifetime as @a buffer.
+
+    @return Not sure.
+ */
+extern int tsconfig_parse_buffer(
+  struct TsConfigHandlers* handlers, ///< Syntax handlers.
+  char* buffer, ///< Input buffer.
+  size_t buffer_len ///< Length of input buffer.
+);
+
+# if defined(__cplusplus)
+}
+# endif
+
+# endif // TS_CONFIG_LEXER_HEADER
diff --git a/lib/tsconfig/TsConfigParseEvents.h b/lib/tsconfig/TsConfigParseEvents.h
new file mode 100644
index 00000000..237514b3
--- /dev/null
+++ b/lib/tsconfig/TsConfigParseEvents.h
@@ -0,0 +1,67 @@
+# if ! defined(TS_CONFIG_PARSE_EVENTS_HEADER)
+# define TS_CONFIG_PARSE_EVENTS_HEADER
+
+/** @file
+
+    Definition of parsing events and handlers.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "TsConfigTypes.h"
+
+typedef void (*TsConfigEventFunction)(void* data, YYSTYPE* token);
+struct TsConfigEventHandler {
+    TsConfigEventFunction _f; ///< Callback function.
+    void* _data; ///< Callback context data.
+};
+typedef int (*TsConfigErrorFunction)(void* data, char const* text);
+struct TsConfigErrorHandler {
+    TsConfigErrorFunction _f; ///< Callback function.
+    void* _data; ///< Callback context data.
+};
+
+enum TsConfigEventType {
+    TsConfigEventGroupOpen,
+    TsConfigEventGroupName,
+    TsConfigEventGroupClose,
+    TsConfigEventListOpen,
+    TsConfigEventListClose,
+    TsConfigEventPathOpen,
+    TsConfigEventPathTag,
+    TsConfigEventPathIndex,
+    TsConfigEventPathClose,
+    TsConfigEventLiteralValue,
+    TsConfigEventInvalidToken
+};
+
+# if defined(__cplusplus)
+static const size_t TS_CONFIG_N_EVENT_TYPES = TsConfigEventInvalidToken + 1;
+# else
+# define TS_CONFIG_N_EVENT_TYPES (TsConfigEventInvalidToken + 1)
+# endif
+
+struct TsConfigHandlers {
+    struct TsConfigErrorHandler error; ///< Syntax error.
+    /// Parsing event handlers.
+    /// Indexed by @c TsConfigEventType.
+    struct TsConfigEventHandler handler[TS_CONFIG_N_EVENT_TYPES];
+};
+
+# endif // TS_CONFIG_PARSE_EVENTS_HEADER
diff --git a/lib/tsconfig/TsConfigSyntax.l b/lib/tsconfig/TsConfigSyntax.l
new file mode 100644
index 00000000..6a07463b
--- /dev/null
+++ b/lib/tsconfig/TsConfigSyntax.l
@@ -0,0 +1,124 @@
+%{
+
+/** @file
+
+    Syntactic analyzer for TS Configuration.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "TsConfigParseEvents.h"
+# include "TsConfigGrammar.h"
+
+extern int tsconfigparse(yyscan_t lexer, struct TsConfigHandlers* handlers);
+
+struct Location TsConfig_Lex_Location = { 0, 1 };
+
+# define YY_USER_ACTION TsConfig_Lex_Location._col += yyleng;
+
+# define FILL \
+  yylval->_s = yytext; \
+  yylval->_n = yyleng; \
+  yylval->_loc = TsConfig_Lex_Location; \
+  yylval->_loc._col -= yyleng;
+
+# define ZRET(t) FILL; yylval->_type = t; return t;
+
+# define HANDLE_EVENT(x) \
+  if (yyextra) { \
+    struct TsConfigEventHandler* h = &(yyextra->handler[TsConfigEvent##x]); \
+    if (h->_f) h->_f(h->_data, yylval); \
+  }
+
+%}
+
+%option outfile="lex.yy.c"
+%option never-interactive reentrant bison-bridge noyywrap
+%option prefix="tsconfig"
+%option nounput noinput
+%option extra-type="struct TsConfigHandlers*"
+
+DSTRING		\"(?:[^\"\\]|\\.)*\"
+SSTRING		'(?:[^'\\]|\\.)*'
+QSTRING		{DSTRING}|{SSTRING}
+IDENT		[[:alpha:]_](?:-*[[:alnum:]_])*
+
+%x		bad
+
+%%
+
+\n              {
+                  ++(TsConfig_Lex_Location._line);
+                  TsConfig_Lex_Location._col = 0;
+                }
+
+{QSTRING}	ZRET(STRING); /* Quote string overrides comments */
+
+(?:[[:space:]]{-}[\n])+       /* Ignore all white space. */
+^[[:space:]]*#.*$             /* Leading '#' is a comment. */
+\/\/.*$                       /* Trailing '//' is a comment. */
+
+{IDENT}		ZRET(IDENT);
+[[:digit:]]+	ZRET(INTEGER);
+\{              ZRET(GROUP_OPEN);
+\}              ZRET(GROUP_CLOSE);
+\(              ZRET(LIST_OPEN);
+\)              ZRET(LIST_CLOSE);
+\<              ZRET(PATH_OPEN);
+\>              ZRET(PATH_CLOSE);
+\.              ZRET(PATH_SEPARATOR);
+=               ZRET(ASSIGN);
+[,;]+           ZRET(SEPARATOR);
+
+.           BEGIN(bad); FILL;
+<bad>\n     {
+              BEGIN(0); // Terminate bad token mode.
+              ++(TsConfig_Lex_Location._line); // Must bump line count.
+              HANDLE_EVENT(InvalidToken);
+            }
+<bad>[[:space:]]  BEGIN(0); HANDLE_EVENT(InvalidToken);
+<bad>.      ++(yylval->_n);
+%%
+
+int tsconfiglex_current_line(void) { return TsConfig_Lex_Location._line; }
+int tsconfiglex_current_col(void) { return TsConfig_Lex_Location._col; }
+
+// This is in here because it's easier than trying to convince automake
+// to let me have a generated header from flex. The header is only needed
+// to define the various macros used here outside of the .l file so if
+// this is here, we don't need the header anymore. This also means we
+// don't have to deal with C/C++ issues in that regard either.
+int tsconfig_parse_buffer(
+  struct TsConfigHandlers* handlers,
+  char* buffer,
+  size_t buffer_len
+) {
+  int zret;
+  yyscan_t lexer;
+  YY_BUFFER_STATE lexer_buffer_state;
+
+  tsconfiglex_init(&lexer);
+  tsconfigset_extra(handlers, lexer);
+  lexer_buffer_state = tsconfig_scan_buffer(buffer, buffer_len, lexer);
+  zret = tsconfigparse(lexer, handlers);
+  tsconfig_delete_buffer(lexer_buffer_state, lexer);
+  tsconfiglex_destroy(lexer);
+
+  return zret;
+}
diff --git a/lib/tsconfig/TsConfigTypes.h b/lib/tsconfig/TsConfigTypes.h
new file mode 100644
index 00000000..b4399d0d
--- /dev/null
+++ b/lib/tsconfig/TsConfigTypes.h
@@ -0,0 +1,66 @@
+# if ! defined(TS_CONFIG_TYPES_HEADER)
+# define TS_CONFIG_TYPES_HEADER
+
+/** @file
+
+    Basic types for configuration parsing.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# if defined(_MSC_VER)
+#   include <stddef.h>
+# else
+#   include <unistd.h>
+# endif
+
+# if defined(__cplusplus)
+namespace ts { namespace config {
+# endif
+
+/** A location in the source stream.
+    @internal At some point we may need to add stream information,
+    e.g. file name, once includes are supported. Or should that
+    be the caller's responsibility?
+ */
+struct Location {
+    int _col; ///< Column.
+    int _line; ///< Line.
+};
+
+/** A token from the source stream.
+    @internal We should use ts::Buffer here, but because this
+    has to work in C as well, it's less painful to do it by hand.
+ */
+struct Token {
+  char* _s; ///< Text of token.
+  size_t _n; ///< Text length.
+  int _type; ///< Type of token.
+  struct Location _loc; ///< Location of token.
+};
+
+# if defined(__cplusplus)
+}} // namespace ts::config
+# define YYSTYPE ts::config::Token
+# else
+# define YYSTYPE struct Token
+#endif
+
+
+# endif // TS_CONFIG_TYPES_HEADER
diff --git a/lib/tsconfig/TsErrataUtil.cc b/lib/tsconfig/TsErrataUtil.cc
new file mode 100644
index 00000000..7e8b77b6
--- /dev/null
+++ b/lib/tsconfig/TsErrataUtil.cc
@@ -0,0 +1,174 @@
+/** @file
+
+    TS Configuration utilities for Errata and logging.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# if !defined(_MSC_VER)
+# include <stdio.h>
+# include <string.h>
+# endif
+# include <stdarg.h>
+# include <errno.h>
+# include <TsErrataUtil.h>
+# include "ts/ink_string.h"
+# include "ts/ink_defs.h"
+
+namespace ts { namespace msg {
+
+Errata::Code FATAL = 3; ///< Fatal, cannot continue.
+Errata::Code WARN = 2; ///< Significant, should be fixed.
+Errata::Code INFO = 1; /// Interesting, not necessarily a problem.
+Errata::Code DEBUG = 0; /// Debugging information.
+
+# if defined(_MSC_VER)
+char* strerror_r(int err, char* s, size_t n) {
+    ink_strlcpy(s, strerror(err), n);
+    return s;
+}
+
+# define snprintf _snprintf
+# endif
+
+Errata&
+log(Errata& err, Errata::Id id, Errata::Code code, char const* text) {
+  err.push(id, code, text);
+  return err;
+}
+
+Errata&
+log(Errata& err, Errata::Code code, char const* text) {
+  err.push(0, code, text);
+  return err;
+}
+
+Errata&
+log(RvBase& rv, Errata::Code code, char const* text) {
+    rv._errata.push(0, code, text);
+    return rv._errata;
+}
+
+Errata
+log(Errata::Code code, char const* text) {
+  Errata err;
+  err.push(0, code, text);
+  return err;
+}
+
+Errata&
+vlogf(
+  Errata& err,
+  Errata::Id id,
+  Errata::Code code,
+  char const* format,
+  va_list& rest
+) {
+  static size_t const SIZE = 8192;
+  char buffer[SIZE];
+  
+  vsnprintf(buffer, SIZE, format, rest);
+  err.push(id, code, buffer);
+  return err;
+}
+
+Errata&
+logf(
+  Errata& err,
+  Errata::Id id,
+  Errata::Code code,
+  char const* format,
+  ...
+) {
+  va_list rest;
+  va_start(rest, format);
+  return vlogf(err, id, code, format, rest);
+}
+
+Errata
+logf(Errata::Code code, char const* format, ...) {
+  Errata err;
+  va_list rest;
+  va_start(rest, format);
+  return vlogf(err, Errata::Id(0), code, format, rest);
+}
+
+Errata&
+logf(Errata& err, Errata::Code code, char const* format, ...) {
+  va_list rest;
+  va_start(rest, format);
+  return vlogf(err, Errata::Id(0), code, format, rest);
+}
+
+Errata&
+logf(RvBase& base, Errata::Code code, char const* format, ...) {
+    va_list rest;
+    va_start(rest, format);
+    return vlogf(base._errata, Errata::Id(0), code, format, rest);
+}
+
+Errata
+log_errno(Errata::Code code, char const* text) {
+  static size_t const SIZE = 1024;
+  char buffer[SIZE];
+  ATS_UNUSED_RETURN(strerror_r(errno, buffer, SIZE));
+  return logf(code, "%s [%d] %s", text, errno, buffer);
+}
+
+Errata
+vlogf_errno(Errata& errata, Errata::Id id, Errata::Code code, char const* format, va_list& rest) {
+  int e = errno; // Preserve value before making system calls.
+  int n;
+  static int const E_SIZE = 256;
+  char e_buffer[E_SIZE];
+  static int const T_SIZE = 8192;
+  char t_buffer[T_SIZE];
+  
+  n = vsnprintf(t_buffer, T_SIZE, format, rest);
+  if (0 <= n && n < T_SIZE) { // still have room.
+    ATS_UNUSED_RETURN(strerror_r(e, e_buffer, E_SIZE));
+    n += snprintf(t_buffer + n, T_SIZE - n, "[%d] %s", e, e_buffer);
+  }
+  errata.push(id, code, t_buffer);
+  return errata;
+}
+
+Errata
+logf_errno(Errata::Code code, char const* format, ...) {
+  Errata zret;
+  va_list rest;
+  va_start(rest, format);
+  return vlogf_errno(zret, 0, code, format, rest);
+}
+
+Errata
+logf_errno(Errata& errata, Errata::Code code, char const* format, ...) {
+  va_list rest;
+  va_start(rest, format);
+  return vlogf_errno(errata, 0, code, format, rest);
+}
+
+Errata
+logf_errno(RvBase& rv, Errata::Code code, char const* format, ...) {
+    va_list rest;
+    va_start(rest, format);
+    return vlogf_errno(rv._errata, 0, code, format, rest);
+}
+// ------------------------------------------------------
+}} // namespace ts::msg
diff --git a/lib/tsconfig/TsErrataUtil.h b/lib/tsconfig/TsErrataUtil.h
new file mode 100644
index 00000000..f9df89db
--- /dev/null
+++ b/lib/tsconfig/TsErrataUtil.h
@@ -0,0 +1,169 @@
+/** @file
+
+    TS Configuration utilities for Errata and logging.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# if !defined(TS_ERRATA_UTIL_HEADER)
+# define TS_ERRATA_UTIL_HEADER
+
+// TBD: Need to do something better than this to get around using
+// 'DEBUG' as the name of a constant.
+# if defined DEBUG
+# undef DEBUG
+# define DEBUG DEBUG
+# endif
+
+# include <Errata.h>
+
+namespace ts { namespace msg {
+
+/// @name Message severity levels.
+//@{
+extern Errata::Code FATAL; ///< Fatal, cannot continue.
+extern Errata::Code WARN; ///< Significant, function degraded.
+extern Errata::Code INFO; ///< Interesting, not necessarily a problem.
+extern Errata::Code DEBUG; ///< Debugging information.
+//@}
+
+/** Logging / reporting support.
+    We build on top of @c Errata but we want to be able to prevent
+    message generation / allocation for messages with severity levels
+    less than a run time controllable value.
+
+    @internal Far from complete but serving as a prototype / experiment
+    to learn what's actually useful.
+*/
+//@{
+/// Report literal string to an Errata.
+/// @return @a err.
+Errata& log(
+  Errata& err,///< Target errata.
+  Errata::Id id, ///< Message ID.
+  Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/// Report literal string to an Errata.
+/// Use message ID 0.
+/// @return @a err.
+Errata& log(
+    Errata& err,///< Target errata.
+    Errata::Code code, ///< Severity level.
+    char const* text ///< Message text.
+);
+/// Report literal string to a return value.
+/// Use message ID 0.
+/// @return The @c Errata in @a rv.
+Errata& log(
+    RvBase& rv,///< Return value.
+    Errata::Code code, ///< Severity level.
+    char const* text ///< Message text.
+);
+/// printf style log to Errata.
+/// @return @a err.
+Errata& logf(
+  Errata& err,///< Target errata.
+  Errata::Id id, ///< Message ID.
+  Errata::Code code, ///< Severity level.
+  char const* format, ///< Format string.
+  ... ///< Format string parameters.
+);
+/// printf style log to Errata.
+/// The message id is set to zero.
+/// @return @a err.
+Errata& logf(
+  Errata& err,///< Target errata.
+  Errata::Code code, ///< Severity level.
+  char const* format, ///< Format string.
+  ... ///< Format string parameters.
+);
+/// Return an Errata in a return value populated with a printf style formatted string.
+/// Use message ID 0.
+/// @return The @c Errata in @a rv.
+Errata& logf(
+    RvBase& rv, ///< Rv value.
+    Errata::Code code, ///< Severity level.
+    char const* format, ///< Message text.
+    ...
+);
+/// Return an Errata populated with a literal string.
+/// Use message ID 0.
+/// @return @a err.
+Errata log(
+  Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/// Return an Errata populated with a printf style formatted string.
+/// Use message ID 0.
+/// @return @a err.
+Errata logf(
+  Errata::Code code, ///< Severity level.
+  char const* format, ///< Message text.
+  ...
+);
+/** Return an Errata based on @c errno.
+    The literal string is combined with the system text for the current
+    value of @c errno. This is modeled on @c perror. Message ID 0 is used.
+    @return The new @c Errata.
+ */
+Errata log_errno(
+  Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/** Return an @c Errata based on @c errno.
+    @c errno and the corresponding system error string are appended to
+    the results from the @a format and following arguments.
+    @return The new @c Errata.
+ */
+Errata
+logf_errno(
+  Errata::Code code,  ///< Severity code.
+  char const* format, ///< Format string.
+  ... ///< Arguments for @a format.
+);
+/** Add a message to an @a errata based on @c errno.
+    @c errno and the corresponding system error string are appended to
+    the results from the @a format and following arguments.
+    @return @a errata.
+ */
+Errata
+logf_errno(
+  Errata& errata, ///< Errata to use.
+  Errata::Code code,  ///< Severity code.
+  char const* format, ///< Format string.
+  ... ///< Arguments for @a format.
+);
+/** Add a message to a return value based on @c errno.
+    @c errno and the corresponding system error string are appended to
+    the results from the @a format and following arguments.
+    @return The errata in @a rv.
+ */
+Errata
+logf_errno(
+  RvBase& rv, ///< Return value.
+  Errata::Code code,  ///< Severity code.
+  char const* format, ///< Format string.
+  ... ///< Arguments for @a format.
+);
+//@}
+
+}} // namespace ts::msg
+
+# endif // define TS_ERRATA_UTIL_HEADER
diff --git a/lib/tsconfig/TsValue.cc b/lib/tsconfig/TsValue.cc
new file mode 100644
index 00000000..d7c1db11
--- /dev/null
+++ b/lib/tsconfig/TsValue.cc
@@ -0,0 +1,364 @@
+/** @file
+
+    TS Configuration API implementation.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "TsValue.h"
+# include "TsBuilder.h"
+# include "ts/ink_defs.h"
+
+# include <TsErrataUtil.h>
+# include <sys/stat.h>
+# include <stdio.h>
+# include <stdlib.h>
+
+# if !defined(_MSC_VER)
+# define _fileno fileno
+# endif
+
+// ---------------------------------------------------------------------------
+namespace ts { namespace config {
+// ---------------------------------------------------------------------------
+Buffer const detail::NULL_BUFFER(0);
+ConstBuffer const detail::NULL_CONST_BUFFER(0);
+detail::ValueItem detail::ValueTableImpl::NULL_ITEM(VoidValue);
+detail::PseudoBool::Type const detail::PseudoBool::FALSE = 0;
+detail::PseudoBool::Type const detail::PseudoBool::TRUE = &detail::PseudoBool::operator !;
+// This should not be called, it is used only as a pointer value.
+bool detail::PseudoBool::operator ! () const { return false; }
+// ---------------------------------------------------------------------------
+unsigned int const detail::Type_Property[N_VALUE_TYPES] = {
+    0, // Void
+    detail::IS_VALID | detail::IS_CONTAINER, // List
+    detail::IS_VALID | detail::IS_CONTAINER, // Group
+    detail::IS_VALID | detail::IS_LITERAL, // String
+    detail::IS_VALID | detail::IS_LITERAL, // Integer
+};
+// ---------------------------------------------------------------------------
+detail::ValueTableImpl::ValueTableImpl() : _generation(0) { }
+detail::ValueTableImpl::~ValueTableImpl() {
+    for ( BufferGroup::iterator spot(_buffers.begin()), limit(_buffers.end()) ; spot != limit ; ++spot)
+        free(spot->_ptr);
+}
+// ---------------------------------------------------------------------------
+detail::ValueTable::ImplType*
+detail::ValueTable::instance() {
+    if (! _ptr) _ptr.reset(new ImplType);
+    return _ptr.get();
+}
+
+detail::ValueTable&
+detail::ValueTable::forceRootItem() {
+    ImplType* imp = this->instance();
+    if (0 == imp->_values.size())
+        imp->_values.push_back(ValueItem(GroupValue));
+    return *this;
+}
+
+Rv<detail::ValueIndex>
+detail::ValueTable::make(ValueIndex pidx, ValueType type, ConstBuffer const& name) {
+  Rv<ValueIndex> zret = NULL_VALUE_INDEX;
+  if (_ptr) {
+    size_t n = _ptr->_values.size();
+    // Check the parent
+    if (pidx < n) {
+      ValueItem* parent = &(_ptr->_values[pidx]);
+      if (IS_CONTAINER & Type_Property[parent->_type]) {
+        ValueItem* item;
+
+        _ptr->_values.push_back(ValueItem(type));
+        parent = &(_ptr->_values[pidx]); // possibly stale, refresh.
+        item = &(_ptr->_values[n]);
+        item->_parent = pidx;
+        parent->_children.push_back(n);
+        item->_local_index = parent->_children.size() - 1;
+        // Only use the name if the parent is a group.
+        if (GroupValue == parent->_type) item->_name = name;
+        zret = n; // mark for return to caller.
+      } else {
+        msg::log(zret.errata(), msg::WARN, "Add child failed because parent is not a container.");
+      }
+    } else {
+      msg::logf(zret.errata(), msg::WARN, "Add child failed because parent index (%ul) is out of range (%ul).", pidx.raw(), n);
+    }
+  } else {
+    msg::log(zret.errata(), msg::WARN, "Add child failed because the configuration is null.");
+  }
+  return zret;
+}
+
+detail::ValueItem&
+detail::ValueTable::operator [] ( ValueIndex idx ) {
+    assert(_ptr && idx < _ptr->_values.size());
+    return _ptr->_values[idx];
+}
+Buffer
+detail::ValueTable::alloc(size_t n) {
+    ImplType* imp = this->instance();
+    Buffer zret(static_cast<char*>(malloc(n)), n);
+    if (zret._ptr) imp->_buffers.push_back(zret);
+    return zret;
+}
+
+// ---------------------------------------------------------------------------
+Value
+Value::operator [] (size_t idx) const {
+    Value zret;
+    detail::ValueItem const* item = this->item();
+    if (item && idx < item->_children.size()) {
+        zret = Value(_config, item->_children[idx]);
+        if (PathValue == zret.getType()) zret = _config.getRoot().find(_config._table[zret._vidx]._path);
+    }
+    return zret;
+}
+
+Value
+Value::operator [] (ConstBuffer const& name) const {
+    Value zret;
+    detail::ValueItem const* item = this->item();
+    if (item) {
+        for ( detail::ValueItem::ChildGroup::const_iterator spot = item->_children.begin(), limit = item->_children.end(); spot != limit; ++spot ) {
+            if (_config._table[*spot]._name == name) {
+                zret = Value(_config, *spot);
+                if (PathValue == zret.getType()) zret = _config.getRoot().find(_config._table[zret._vidx]._path);
+                break;
+            }
+        }
+    }
+    return zret;
+}
+
+Value
+Value::find( ConstBuffer const& path ) {
+    Value zret = *this;
+    Path::Parser parser(path);
+    Rv<Path::Parser::Result> x;
+    ConstBuffer elt;
+    for ( x = parser.parse(&elt) ; zret && Path::Parser::EOP != x && Path::Parser::ERROR != x ; x = parser.parse(&elt) ) {
+        if (Path::Parser::TAG == x) zret = zret[elt];
+        else if (Path::Parser::INDEX == x) zret = zret[elt._size];
+        else zret.reset();
+    }
+    if (Path::Parser::EOP != x) zret.reset();
+    return zret;
+}
+
+Value
+Value::find(Path const& path ) {
+    Value zret = *this;
+    for ( size_t i = 0, n = path.count() ; i < n && zret ; ++i ) {
+        ConstBuffer const& elt = path[i];
+        if (elt._ptr) zret = zret[elt];
+        else zret = zret[elt._size];
+    }
+    return zret;
+}
+
+Rv<Value>
+Value::makeChild(ValueType type, ConstBuffer const& name) {
+    Rv<Value> zret;
+    Rv<detail::ValueIndex> vr = _config._table.make(this->_vidx, type, name);
+    if (vr.isOK()) zret = Value(_config, vr.result());
+    else zret.errata() = vr.errata();
+    return zret;
+}
+
+Rv<Value>
+Value::makeGroup(ConstBuffer const& name) {
+    return this->makeChild(GroupValue, name);
+}
+
+Rv<Value>
+Value::makeList(ConstBuffer const& name) {
+    return this->makeChild(ListValue, name);
+}
+
+Rv<Value>
+Value::makeString(ConstBuffer const& text, ConstBuffer const& name) {
+    Rv<Value> zret = this->makeChild(StringValue, name);
+    if (zret.isOK()) zret.result().setText(text);
+    return zret;
+}
+
+Rv<Value>
+Value::makeInteger(ConstBuffer const& text, ConstBuffer const& name) {
+    Rv<Value> zret = this->makeChild(IntegerValue, name);
+    if (zret.isOK()) zret.result().setText(text);
+    return zret;
+}
+
+Rv<Value>
+Value::makePath(Path const& path, ConstBuffer const& name) {
+    Rv<Value> zret = this->makeChild(PathValue, name);
+    if (zret.isOK()) _config._table[zret.result()._vidx]._path = path;
+    return zret;
+}
+// ---------------------------------------------------------------------------
+Path& Path::reset() {
+    if (_ptr) {
+        // If we're sharing the instance, make a new one for us.
+        if (_ptr.isShared()) _ptr = new ImplType;
+        else { // clear out the existing instance.
+            _ptr->_elements.clear();
+        }
+    }
+    return *this;
+}
+// ---------------------------------------------------------------------------
+Rv<Path::Parser::Result>
+Path::Parser::parse(ConstBuffer *cbuff) {
+    Rv<Result> zret = EOP;
+    enum State {
+        S_INIT, // initial state
+        S_INDEX, // reading index.
+        S_TAG, // reading tag.
+        S_DASH, // reading dashes in tag.
+    } state = S_INIT;
+
+    // Character bucket
+    enum Bucket {
+        C_INVALID, // Invalid input.
+        C_DIGIT, // digit.
+        C_IDENT, // Identifier character.
+        C_DASH, // A dash
+        C_DOT, // A dot (period).
+    };
+
+    if (cbuff) cbuff->reset();
+    char const* start = _c; // save starting character location.
+    size_t idx = 0; // accumulator for index value.
+
+    bool final = false;
+    while (! final && this->hasInput()) {
+        Bucket cb;
+        if (isdigit(*_c)) cb = C_DIGIT;
+        else if ('_' == *_c || isalpha(*_c)) cb = C_IDENT;
+        else if ('-' == *_c) cb = C_DASH;
+        else if ('.' == *_c) cb = C_DOT;
+        else cb = C_INVALID;
+
+        if (C_INVALID == cb) {
+            msg::logf(zret, msg::WARN, "Invalid character '%c' [%u] in path.", *_c, *_c);
+        } else switch (state) {
+            case S_INIT:
+                switch (cb) {
+                    case C_DIGIT: state = S_INDEX; idx = *_c - '0'; break;
+                    case C_IDENT: state = S_TAG; break;
+                    case C_DASH: msg::logf(zret, msg::WARN, "Dash not allowed as leading character for tag."); final = true; break;
+                    case C_DOT: msg::logf(zret, msg::WARN, "Separator without preceding element."); final = true; break;
+                    default: msg::logf(zret, msg::WARN, "Internal error: unexpected character %u in INIT state.", *_c); final = true; break;
+                }
+                break;
+            case S_INDEX: // reading an index.
+                if (C_DIGIT == cb) idx = 10 * idx + *_c - '0';
+                else if (C_DOT == cb) { final = true; }
+                else {
+                    msg::logf(zret, msg::WARN, "Invalid character '%c' [%u] in index element.", *_c, *_c);
+                    final = true;
+                }
+                break;
+            case S_TAG: // reading a tag.
+                if (C_IDENT == cb || C_DIGIT == cb) ; // continue
+                else if (C_DASH == cb) state = S_DASH;
+                else if (C_DOT == cb) { final = true; }
+                else { // should never happen, but be safe.
+                    msg::logf(zret, msg::WARN, "Invalid character '%c' [%u] in index element.", *_c, *_c);
+                    final = true;
+                }
+                break;
+            case S_DASH: // dashes inside tag.
+                if (C_IDENT == cb || C_DIGIT == cb) state = S_TAG;
+                else if (C_DOT == cb) {
+                    msg::log(zret, msg::WARN, "Trailing dash not allowed in tag element.");
+                    final = true;
+                } else if (C_DASH != cb) { // should never happen, but be safe.
+                    msg::logf(zret, msg::WARN, "Invalid character '%c' [%u] in index element.", *_c, *_c);
+                    final = true;
+                }
+                break;
+        }
+        ++_c;
+    }
+    if (!zret.isOK()) {
+        zret = ERROR;
+        if (cbuff) cbuff->set(_c - 1, 1);
+        _c = 0;
+        _input.reset();
+    } else if (S_INIT == state) {
+        zret = EOP;
+    } else if (S_TAG == state) {
+        zret = TAG;
+        if (cbuff) {
+            cbuff->set(start, _c - start);
+            // if @a final is set, then we parsed a dot separator.
+            // don't include it in the returned tag.
+            if (final) cbuff->_size -= 1;
+        }
+    } else if (S_INDEX == state) {
+        zret = INDEX;
+        if (cbuff) cbuff->_size = idx;
+    } else if (S_DASH == state) {
+        zret = ERROR;
+        msg::log(zret, msg::WARN, "Trailing dash not allowed in tag element.");
+        if (cbuff) cbuff->set(start, _c - start);
+    }
+    return zret;
+}
+// ---------------------------------------------------------------------------
+Value
+Configuration::getRoot() const {
+  const_cast<self*>(this)->_table.forceRootItem();
+  return Value(*this, 0);
+}
+
+Rv<Configuration>
+Configuration::loadFromPath(char const* path) {
+    Rv<Configuration> zret;
+    Buffer buffer(0);
+    FILE* in = fopen(path, "r");
+
+    if (in) {
+        struct stat info;
+        if (0 == fstat(_fileno(in), &info)) {
+            // Must reserve 2 bytes at the end for FLEX terminator.
+            buffer = zret.result().alloc(info.st_size + 2);
+            if (buffer._ptr) {
+                size_t n;
+                if (0 < (n = fread(buffer._ptr, sizeof(char), info.st_size, in))) {
+                    buffer._size = n+2;
+                    memset(buffer._ptr + n, 0, 2); // required by FLEX
+                    zret = Builder(zret.result()).build(buffer);
+                } else {
+                    msg::logf_errno(zret, msg::WARN, "failed to read %" PRIu64 " bytes from configuration file '%s'", info.st_size, path);
+                }
+            } else {
+                msg::logf_errno(zret, msg::WARN, "failed to allocate buffer for configuration file '%s' - needed %" PRIu64 " bytes.", path, info.st_size);
+            }
+        } else {
+            msg::logf_errno(zret, msg::WARN, "failed to determine file information on '%s'", path);
+        }
+    } else {
+        msg::logf_errno(zret, msg::WARN, "failed to open configuration file '%s'", path);
+    }
+    return zret;
+}
+
+}} // namespace ts::config
diff --git a/lib/tsconfig/TsValue.h b/lib/tsconfig/TsValue.h
new file mode 100644
index 00000000..19c0f0c5
--- /dev/null
+++ b/lib/tsconfig/TsValue.h
@@ -0,0 +1,740 @@
+# if ! defined(TS_CONFIG_VALUE_HEADER)
+# define TS_CONFIG_VALUE_HEADER
+
+/** @file
+
+    TS Configuration API definition.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <string.h>
+# include <ts/TsBuffer.h>
+# include <tsconfig/NumericType.h>
+# include <tsconfig/IntrusivePtr.h>
+# include <tsconfig/Errata.h>
+# include <vector>
+
+namespace ts { namespace config {
+
+// Forward declares.
+class Value;
+class Path;
+
+namespace detail {
+  /** Class to provide a "pseudo bool" value.
+      This is used as the return type for the positive logical operator
+      (the converse of @c operator! ). This makes a class directly
+      usable in logical expressions. It is like a pointer but @b not
+      convertible to anything else, and so avoiding any undesirable
+      automatic conversions and the resulting ambiguities.
+  */
+  struct PseudoBool {
+    typedef bool (PseudoBool::*Type)() const; ///< The type itself.
+    bool operator ! () const; ///< A method to use for the @c true value.
+    static Type const TRUE; ///< The @c true equivalent.
+    static Type const FALSE; ///< The @c false equivalent.
+  };
+}
+
+/// Type of value.
+enum ValueType {
+  VoidValue, ///< No value, invalid.
+  ListValue, ///< List of values.
+  GroupValue, ///< Group of values.
+  StringValue, ///< Text string.
+  IntegerValue, ///< Integer.
+  PathValue, ///< Path.
+  // Update N_VALUE_TYPES if you change the last enum value !!
+};
+/// Number of value types.
+static size_t const N_VALUE_TYPES = PathValue + 1;
+
+/** A path to a value in a configuration.
+ */
+class Path {
+  friend class Value;
+protected:
+  class ImplType : public IntrusivePtrCounter {
+    friend class Path;
+  public:
+    ImplType(); ///< Constructor.
+  protected:
+    /** Container for path elements.
+        We are subtle with our elements, which can be either a string
+        or a numeric index. By convention, if the pointer in the buffer is
+        @c NULL, then the size is a numeric index. Otherwise it's a name.
+    */
+    typedef std::vector<ConstBuffer> Elements;
+    Elements _elements; ///< Path elements.
+  };
+public:
+  typedef Path self; ///< Self reference type.
+
+  Path(); ///< Default constructor.
+
+  /// Append a string tag to the path.
+  self& append(
+    ConstBuffer const& tag ///< Text of tag.
+  );
+  /// Append a numeric index to the path.
+  self& append(
+    size_t idx ///< Index.
+  );
+  /// Reset to default constructed state.
+  self& reset();
+
+  /// Get the number of elements in this path.
+  size_t count() const;
+
+  /// Access an element by @a index.
+  ConstBuffer const& operator [] (
+    size_t index ///< Element index.
+  ) const;
+
+  /** Parser for path text.
+      This is restartable so a path can be parsed in pieces.
+      @internal Sadly, FLEX is just too much overhead to be useful here.
+  */
+  class Parser {
+  public:
+    typedef Parser self; ///< Self reference type.
+
+    Parser(); ///< Default constructor.
+    /** Construct with input.
+
+        This default constructs the Parser then calls @c setInput with
+        @a text. It is provided as a convenience as that will be the
+        common use case.
+
+        @see setInput.
+    */
+    Parser(
+      ConstBuffer const& text ///< Input text.
+    );
+
+    /** Set the input @a text.
+        Parsing state is reset and the next parsing call will
+        start at the beginning of @a text.
+    */
+    self& setInput(
+      ConstBuffer const& text ///< Input buffer.
+    );
+
+    /// Parsing result.
+    enum Result {
+      ERROR, ///< Bad input.
+      TAG, ///< Path tag.
+      INDEX, ///< Path index.
+      EOP, ///< End Of Path.
+    };
+
+    /** Parse the next element in the path.
+
+        @a cbuff may be @c NULL in which case no data about elements
+        is available.  In general this should be called until @c EOP
+        or @c ERROR is returned, each call returning the next element.
+
+        @return A parse @c Result.
+        - TAG: A tag was found. The start and length are stored in @a cbuff.
+        - INDEX: An index was found. The value is in @a cbuff._size.
+        - EOP: No more path elements were found. Do not continue parsing.
+        - ERROR: A syntax error was encountered. See the errata for detail. Do not continue parsing.
+    */
+    Rv<Result> parse(
+      ConstBuffer* cbuff = 0 ///< [out] Parsed path element.
+    );
+
+    /// Check if input is available.
+    bool hasInput() const;
+
+  protected:
+    ConstBuffer _input; ///< Current input buffer.
+    char const* _c; ///< Next input character.
+  };
+protected:
+  typedef IntrusivePtr<ImplType> ImplPtr; ///< Smart pointer to implementation.
+  ImplPtr _ptr; ///< Our instance.
+  /// Force an implementation instance and return a pointer to it.
+  ImplType* instance();
+};
+
+namespace detail {
+  /// Null buffer, handy in several places.
+  extern Buffer const NULL_BUFFER;
+  /// Null buffer, handy in several places.
+  extern ConstBuffer const NULL_CONST_BUFFER;
+  /// Index type for value items in the global table.
+  typedef NumericType<size_t, struct ValueIndexTag> ValueIndex;
+  /// Index value that presents NULL (invalid value).
+  static ValueIndex const NULL_VALUE_INDEX = static_cast<ValueIndex::raw_type>(-1);
+  /// Numeric type for configuration generation.
+  typedef NumericType<size_t, struct GenerationTag> Generation;
+
+  /** Value type properties.
+      These are used as bit masks on elements of an array.
+  */
+  static unsigned int const IS_VALID = 1;
+  static unsigned int const IS_LITERAL = 1<<1;
+  static unsigned int const IS_CONTAINER = 1<<2;
+
+  /// Value type property table.
+  extern unsigned int const Type_Property[N_VALUE_TYPES];
+
+  /** A value in the configuration.
+      This is used in a global table so it handles all types of Values.
+      Members that are not used for scalars are designed to be @c NULL
+      pointers in that case.
+  */
+  class ValueItem {
+    // Apparently the C++ standard, 7.3.1.2, states that unqualified
+    // friend classes only considers the current namespace, not any
+    // outer ones. So we have to fully qualify this. Blech.
+    friend class ts::config::Value;
+    friend class ValueTable;
+  public:
+    /// Default constructor.
+    ValueItem();
+    /// Construct empty item of a specific type.
+    ValueItem(ValueType type);
+    /// Get item type.
+    ValueType getType() const;
+  protected:
+    ValueType _type;      ///< Type of value.
+    ValueIndex _parent;   ///< Table index of parent value.
+    ConstBuffer _text;    ///< Text of value (if scalar).
+    ConstBuffer _name;    ///< Local name of value, if available.
+    size_t _local_index;  ///< Index among siblings.
+    int _srcLine;         ///< Source line.
+    int _srcColumn;       ///< Source column.
+
+    /// Container for children of this item.
+    typedef std::vector<ValueIndex> ChildGroup;
+    /// Child items of this item.
+    ChildGroup _children;
+    /// Path if present.
+    Path _path;
+
+    // This is for optimizing named access at some point in the future.
+    /// Hold a child item name in a table for fast lookup.
+    struct Name {
+      ConstBuffer _text; ///< Text of name.
+      ValueIndex _index; ///< Index of child.
+    };
+    /// Container for child names.
+    typedef std::vector<Name> NameGroup;
+    /** Child names, if appropriate.
+        This is faulted in when needed, if this value is an aggregate with
+        named children. The list must be sorted on name so that it can be binary
+        searched for performance.
+    */
+    NameGroup _names;
+  };
+
+  class ValueTable;
+
+  /** Table of configuration values.
+      This holds all the values for a specific configuration.
+  */
+  class ValueTableImpl : public IntrusivePtrCounter {
+    friend class ValueTable;
+  public:
+    typedef ValueTableImpl self; ///< Self reference type.
+
+    ValueTableImpl(); ///< Constructor.
+    ~ValueTableImpl(); ///< Destructor.
+  protected:
+    /// Container for value items.
+    typedef std::vector<ValueItem> ItemTable;
+    ItemTable _values; ///< All configuration values.
+    Generation _generation; ///< Generation number of configuration.
+    /// A group of buffers.
+    typedef std::vector<Buffer> BufferGroup;
+    /** Locally allocated buffers.
+        These are freed when this object is destroyed.
+    */
+    BufferGroup _buffers;
+
+    static ValueItem NULL_ITEM; ///< Null item for invalid access return.
+  };
+
+  /** Wrapper class for a table of configuration values.
+      @internal Really, this should be merged in to Configuration. The original
+      differences have evolved out of the implementation.
+  */
+  class ValueTable {
+  public:
+    typedef ValueTable self; ///< Self reference type.
+    typedef ValueTableImpl ImplType; ///< Implementation type.
+
+    /// Table size.
+    /// @return The number of value items in the table.
+    size_t size() const;
+    /// Generation.
+    /// @return The generation number.
+    Generation generation() const;
+
+    /// Const access by index.
+    /// @return The value item at index @a idx.
+    ValueItem const& operator [] (
+      ValueIndex idx ///< Index of item.
+    ) const;
+    /// Access by index.
+    /// @return The value item at index @a idx.
+    ValueItem& operator [] (
+      ValueIndex idx ///< Index of item.
+    );
+
+    /// Force the existence of the root item in the table.
+    /// @return @c this object.
+    self& forceRootItem();
+    /** Create a new item (value) with optional @a name
+        The table must contain @a parent. If @a name is omitted, the item
+        has an empty name.
+        @return Index of the new value item.
+    */
+    Rv<ValueIndex> make(
+      ValueIndex parent, ///< Index of parent for item.
+      ValueType type, ///< Type of item.
+      ConstBuffer const& name = NULL_BUFFER ///< Name (may be empty).
+    );
+
+    /// Test for not table existence.
+    /// @return @c false if the implementation instance exists, @c true if not.
+    bool operator ! () const;
+    /// Test for table existence.
+    /// @return @c true if the implementation instance exists, @c false if not.
+    operator PseudoBool::Type() const;
+    /// Reset to default constructed state.
+    /// @return @c this object.
+    self& reset();
+
+    /** Allocate a local buffer.
+        This buffer will persist until the implementation instance
+        is destoyed.
+        @return The allocated buffer.
+    */
+    Buffer alloc(size_t n);
+  protected:
+    typedef IntrusivePtr<ImplType> ImplPtr; ///< Smart pointer to implementation instance.
+    ImplPtr _ptr; ///< Implementation instance.
+
+    /// Force an implementation instance and return a pointer to it.
+    ImplType* instance();
+  };
+} // namespace detail
+
+/** Container for a configuration.
+    This is a wrapper class that holds a shared reference to a configuration.
+*/
+class Configuration {
+  friend class Value;
+public:
+  typedef Configuration self; ///< Self reference type.
+
+  /** Check if configuration is (not) valid.
+      @return @c true if this configuration is invalid, @c false otherwise.
+  */
+  bool operator ! () const;
+  /** Check if the configuration is valid.
+      @return The equivalent of @c true if this does @b not contain a value,
+      the equivalent of @c false if it does.
+  */
+  operator detail::PseudoBool::Type () const;
+  /** Get the root @c Value of the configuration.
+      The root is always a group and has no name.
+      @return The root value.
+  */
+  Value getRoot() const;
+
+  /// Get the number of child values on the root value.
+  size_t childCount() const;
+  /** Root value child access by @a index
+      @return The child or a @c Void value if there is no child with @a name.
+  */
+  Value operator [] (
+    size_t idx ///< Index of child value.
+  ) const;
+  /** Root value child access by @a name.
+      @return The child or a @c Void value if there is no child with @a name.
+  */
+  Value operator [] (
+    ConstBuffer const& name
+  ) const;
+  /** Root value child access by @a name.
+      @return The child or a @c Void value if there is no child with @a name.
+  */
+  Value operator [] (
+    char const* name ///< Null terminated string.
+  ) const;
+
+  /** Find a value.
+      @return The value if found, an void valid if not.
+  */
+  Value find(
+    char const* path ///< configuration path to value.
+  );
+  /** Load a configuration from a file.
+
+      @note Check the returned errata for problems during configuration
+      load. It is probably not a good idea to use the configuration in
+      any error are reported.
+      @return A new @c Configuration and errata.
+  */
+  static Rv<self> loadFromPath(
+    char const* path ///< file system path.
+  );
+  /** Allocate a local buffer of size @a n.
+      This buffer will persist until the implementation instance
+      is destroyed.
+      @return The allocated buffer.
+  */
+  Buffer alloc(
+    size_t n ///< requested size of buffer.
+  );
+protected:
+  detail::ValueTable _table; ///< Table of values from the configuration.
+};
+
+/** This holds a value from the configuration.
+
+    @internal It is critical that none of the type specific subclasses define any data members
+    so that instances can be freely converted to and from this base class.
+*/
+class Value {
+  friend class Configuration;
+public:
+  typedef Value self; ///< Self reference type.
+  /// Default constructors.
+  /// Creates an @c NULL instance.
+  Value();
+  /// Destructor.
+  ~Value();
+
+  /// Get the type of value.
+  ValueType getType() const;
+  /// Test if this is a valid value.
+  /// @return @c true if this contains a value, @c false otherwise.
+  bool hasValue() const;
+  /** Operator form of @c hasValue.
+      @see hasValue
+      @return @c true if this does @b not contain a value, @c false if it does.
+  */
+  bool operator ! () const;
+  /** Logical form of @c hasValue for use in logical expressions.
+      @see hasValue
+      @return The equivalent of @c true if this does @b not contain a value,
+      the equivalent of @c false if it does.
+  */
+  operator detail::PseudoBool::Type () const;
+
+  /** Get the value text.
+      @return The text in the configuration file for this item if the item
+      is a scalar, an empty buffer otherwise.
+  */
+  ConstBuffer const& getText() const;
+  /// Set the @a text for this value.
+  self& setText(
+    ConstBuffer const& text
+  );
+
+  /** Get local name.
+      This gets the local name of the value. That is the name by which it
+      is known to its parent container.
+
+      @internal Only works for groups now. It should be made to work
+      for lists. This would require allocating strings for each index,
+      which should be shared across values. For instance, all values
+      at index 1 should return the same string "1", not separately
+      allocated for each value.
+   */
+  ConstBuffer const& getName() const;
+  /** Get local index.
+      This gets the local index for the value. This is the index which,
+      if used on the parent, would yield this value.
+      @return The local index.
+   */
+  size_t getIndex() const;
+
+  /// Test for a literal value.
+  /// @return @c true if the value is a literal,
+  /// @c false if it is a container or invalid.
+  bool isLiteral() const;
+  /// Test for value container.
+  /// @return @c true if the value is a container (can have child values),
+  /// @c false otherwise.
+  bool isContainer() const;
+  /// Get the parent value.
+  Value getParent() const;
+  /// Test if this is the root value for the configuration.
+  bool isRoot() const;
+
+  /// Get the number of child values.
+  size_t childCount() const;
+  /** Child access by @a index
+      @return The child or a @c Void value if there is no child with @a name.
+  */
+  Value operator [] (
+    size_t idx ///< Index of child value.
+  ) const;
+  /** Child access by @a name.
+      @return The child or a @c Void value if there is no child with @a name.
+  */
+  Value operator [] (
+    ConstBuffer const& name
+  ) const;
+  /** Child access by @a name.
+      @return The child or a @c Void value if there is no child with @a name.
+  */
+  Value operator [] (
+    char const* name ///< Null terminated string.
+  ) const;
+
+  /** @name Creating child values.
+
+      These methods all take an optional @a name argument. This is
+      required if @c this is a @c Group and ignored if @c this is a @c
+      List.
+
+      These methods will fail if
+      - @c this is not a container.
+      - @c this is a @c Group and no @a name is provided.
+
+      @note Currently for groups, duplicate names are not
+      detected. The duplicates will be inaccessible by name but can
+      still be found by index. This is a problem but I am still
+      pondering the appropriate solution.
+
+      @see isContainer
+      @return The new value, or an invalid value plus errata on failure.
+
+      @internal I original had this as a single method, but changed to
+      separate per type.  Overall less ugly because we can get the
+      arguments more useful.
+  */
+  //@{
+  /// Create a @c String value.
+  Rv<Value> makeString(
+    ConstBuffer const& text, ///< String content.
+    ConstBuffer const& name = detail::NULL_BUFFER///< Optional name of value.
+  );
+  /// Create an @c Integer value.
+  Rv<Value> makeInteger(
+    ConstBuffer const& text, ///< Text of number.
+    ConstBuffer const& name = detail::NULL_BUFFER///< Optional name of value.
+  );
+  /// Create a @c Group value.
+  Rv<Value> makeGroup(
+    ConstBuffer const& name = detail::NULL_BUFFER///< Optional name of value.
+  );
+  /// Create a @c List value.
+  Rv<Value> makeList(
+    ConstBuffer const& name = detail::NULL_BUFFER///< Optional name of value.
+  );
+  /// Create a @c Path value.
+  Rv<Value> makePath(
+    Path const& path, ///< Path.
+    ConstBuffer const& name = detail::NULL_BUFFER///< Optional name of value.
+  );
+  /// Create a child by type.
+  /// Client must fill in any other required elements.
+  Rv<Value> makeChild(
+    ValueType type, ///< Type of child.
+    ConstBuffer const& name = detail::NULL_BUFFER///< Optional name of value.
+  );
+  //@}
+
+  /** Find a value.
+      @return The value if found, an void valid if not.
+  */
+  Value find(
+    ConstBuffer const& path ///< Path relative to this value.
+  );
+  /** Find a value.
+      @return The value if found, an void valid if not.
+  */
+  Value find(
+    char const* path ///< Path relative to this value.
+  );
+  /** Find a value using a precondensed path.
+      @return The value if found, an void valid if not.
+  */
+  Value find(
+    Path const& path ///< Path relative to this value.
+  );
+
+  /** Reset to default constructed state.
+      @note This wrapper is reset, the value in the configuration is unchanged.
+      @return @c this object.
+  */
+  self& reset();
+
+  /// Set source line.
+  /// @return @c this object.
+  self& setSourceLine(
+    int line ///< Line in source stream.
+  );
+  /// Set source column.
+  /// @return @c this object.
+  self& setSourceColumn(
+    int col ///< Column in source stream.
+  );
+  /// Set the source location.
+  self& setSource(
+    int line, ///< Line in source stream.
+    int col ///< Column in source stream.
+  );
+  /// Get source line.
+  /// @return The line in the source stream for this value.
+  int getSourceLine() const;
+  /// Get source column.
+  /// @return The column in the source stream for this value.
+  int getSourceColumn() const;
+
+protected:
+  // Note: We store an index and not a pointer because a pointer will go stale
+  // if any items are added or removed from the underlying table.
+  // Also, by storing the configuration, we hold it in memory as long as a Value
+  // is in client hands.
+  Configuration _config; ///< The configuration for this value.
+  detail::ValueIndex _vidx; ///< Index of item.
+
+  static Buffer const NULL_BUFFER; ///< Empty buffer to return on method failures.
+
+  /// Construct from raw data.
+  Value(
+    Configuration cfg, ///< Source configuration.
+    detail::ValueIndex vidx  ///< Index of value.
+  );
+
+  /** Get raw item pointer.
+      @note This pointer is unstable and must be recomputed on each method invocation.
+      @return The item pointer or @c NULL if this value is invalid.
+  */
+  detail::ValueItem* item();
+  /** Get constant raw item pointer.
+      @note This pointer is unstable and must be recomputed on each method invocation.
+      @return The item pointer or @c NULL if this value is invalid.
+  */
+  detail::ValueItem const* item() const;
+};
+
+// Inline methods.
+namespace detail {
+  inline bool ValueTable::operator ! () const { return ! _ptr; }
+  inline ValueTable::operator PseudoBool::Type () const { return _ptr ? PseudoBool::TRUE : PseudoBool::FALSE; }
+  inline size_t ValueTable::size() const { return _ptr ? _ptr->_values.size() : 0; }
+  inline Generation ValueTable::generation() const { return _ptr ? _ptr->_generation : Generation(0); }
+  inline ValueItem const& ValueTable::operator [] (ValueIndex idx) const { return const_cast<self*>(this)->operator [] (idx); }
+  inline ValueTable& ValueTable::reset() { _ptr = 0; return *this; }
+
+  inline ValueItem::ValueItem() : _type(VoidValue), _text(0), _name(0) {}
+  inline ValueItem::ValueItem(ValueType type) : _type(type), _text(0), _name(0) {}
+  inline ValueType ValueItem::getType() const { return _type; }
+}
+
+inline Value::~Value() { }
+inline Value::Value() : _vidx(detail::NULL_VALUE_INDEX) {}
+inline Value::Value(Configuration cfg, detail::ValueIndex vidx) : _config(cfg), _vidx(vidx) { }
+inline bool Value::hasValue() const { return _config && _vidx != detail::NULL_VALUE_INDEX; }
+inline Value::operator detail::PseudoBool::Type () const { return this->hasValue() ? detail::PseudoBool::TRUE : detail::PseudoBool::FALSE; }
+inline bool Value::operator ! () const { return ! this->hasValue(); }
+inline ValueType Value::getType() const { return this->hasValue() ? _config._table[_vidx]._type : VoidValue; }
+inline ConstBuffer const& Value::getText() const {
+  return this->hasValue() ? _config._table[_vidx]._text : detail::NULL_CONST_BUFFER;
+}
+inline Value& Value::setText(ConstBuffer const& text) {
+  detail::ValueItem* item = this->item();
+  if (item) item->_text = text;
+  return *this;
+}
+inline ConstBuffer const& Value::getName() const {
+  detail::ValueItem const* item = this->item();
+  return item ? item->_name : detail::NULL_CONST_BUFFER;
+}
+inline size_t Value::getIndex() const {
+  detail::ValueItem const* item = this->item();
+  return item ? item->_local_index : 0;
+}
+  
+inline bool Value::isLiteral() const { return 0 != (detail::IS_LITERAL & detail::Type_Property[this->getType()]); }
+inline bool Value::isContainer() const { return 0 != (detail::IS_CONTAINER & detail::Type_Property[this->getType()]); }
+inline Value Value::getParent() const { return this->hasValue() ? Value(_config, _config._table[_vidx]._parent) : Value(); }
+inline bool Value::isRoot() const { return this->hasValue() && _vidx == 0; }
+inline Value& Value::reset() { _config = Configuration(); _vidx = detail::NULL_VALUE_INDEX; return *this; }
+inline detail::ValueItem* Value::item() { return this->hasValue() ? &(_config._table[_vidx]) : 0; }
+inline detail::ValueItem const* Value::item() const { return const_cast<self*>(this)->item(); }
+inline Value Value::operator [] (char const* name) const { return (*this)[ConstBuffer(name, strlen(name))]; }
+inline size_t Value::childCount() const {
+  detail::ValueItem const* item = this->item();
+  return item ? item->_children.size() : 0;
+}
+inline Value Value::find(char const* path) { return this->find(ConstBuffer(path, strlen(path))); }
+inline int Value::getSourceLine() const {
+  detail::ValueItem const* item = this->item();
+  return item ? item->_srcLine : 0;
+}
+inline int Value::getSourceColumn() const {
+  detail::ValueItem const* item = this->item();
+  return item ? item->_srcColumn : 0;
+}
+inline Value& Value::setSourceLine(int line) {
+  detail::ValueItem* item = this->item();
+  if (item) item->_srcLine = line;
+  return *this;
+}
+inline Value& Value::setSourceColumn(int col) {
+  detail::ValueItem* item = this->item();
+  if (item) item->_srcColumn = col;
+  return *this;
+}
+inline Value& Value::setSource(int line, int col) {
+  detail::ValueItem* item = this->item();
+  if (item) {
+    item->_srcLine = line;
+    item->_srcColumn = col;
+  }
+  return *this;
+}
+
+inline Path::ImplType::ImplType() { }
+
+inline Path::Path() { }
+inline Path::ImplType* Path::instance() { if (!_ptr) _ptr = new ImplType; return _ptr.get(); }
+inline Path& Path::append(ConstBuffer const& tag) { this->instance()->_elements.push_back(tag); return *this; }
+inline Path& Path::append(size_t index) { this->instance()->_elements.push_back(ConstBuffer(0, index)); return *this; }
+inline size_t Path::count() const { return _ptr ? _ptr->_elements.size() : 0; }
+inline ConstBuffer const& Path::operator [] (size_t idx) const { return _ptr ? _ptr->_elements[idx] : detail::NULL_CONST_BUFFER; }
+
+inline Path::Parser::Parser() : _input(0), _c(0) { }
+inline Path::Parser::Parser( ConstBuffer const& text ) : _input(text), _c(text._ptr) { }
+inline bool Path::Parser::hasInput() const { return _input._ptr && _input._ptr + _input._size > _c; }
+
+inline bool Configuration::operator ! () const { return ! _table; }
+inline Configuration::operator detail::PseudoBool::Type() const { return _table.operator detail::PseudoBool::Type(); }
+inline Value Configuration::find( char const* path ) { return this->getRoot().find(path); }
+inline Buffer Configuration::alloc(size_t n) { return _table.alloc(n);  }
+inline size_t Configuration::childCount() const { return this->getRoot().childCount(); }
+inline Value Configuration::operator [] (size_t idx) const { return (this->getRoot())[idx]; }
+inline Value Configuration::operator [] ( ConstBuffer const& name ) const { return (this->getRoot())[name]; }
+inline Value Configuration::operator [] ( char const* name ) const { return (this->getRoot())[name]; }
+
+}} // namespace ts::config
+
+# endif
diff --git a/lib/tsconfig/test-1.tsconfig b/lib/tsconfig/test-1.tsconfig
new file mode 100644
index 00000000..ee733a8e
--- /dev/null
+++ b/lib/tsconfig/test-1.tsconfig
@@ -0,0 +1,18 @@
+thing-1 = {
+  name = "0\12\\\345678\9";
+}
+
+list = (
+  {
+    prop1 = "Bob";
+    prop2 = "Dave";
+  },
+  {
+    prop1 = "Bobby";
+    prop2 = "Davy";
+  },
+  {
+    prop1 = "Robert";
+    prop2 = "David";
+  }
+)
\ No newline at end of file
diff --git a/lib/tsconfig/test-tsconfig.cc b/lib/tsconfig/test-tsconfig.cc
new file mode 100644
index 00000000..5995e9f4
--- /dev/null
+++ b/lib/tsconfig/test-tsconfig.cc
@@ -0,0 +1,49 @@
+/** @file
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+# include "tsconfig/TsValue.h"
+# include <stdio.h>
+# include <iostream>
+
+using ts::config::Configuration;
+using ts::config::Value;
+
+inline std::ostream& operator << ( std::ostream& s, ts::ConstBuffer const& b ) {
+  if (b._ptr) s.write(b._ptr, b._size);
+  else s << b._size;
+  return s;
+}
+
+int main(int /* argc ATS_UNUSED */, char **/* argv ATS_UNUSED */) {
+  printf("Testing TsConfig\n");
+  ts::Rv<Configuration> cv = Configuration::loadFromPath("test-1.tsconfig");
+  if (cv.isOK()) {
+    Value v = cv.result().find("thing-1.name");
+    if (v) {
+      std::cout << "thing-1.name = " << v.getText() << std::endl;
+    } else {
+      std::cout << "Failed to find 'name' in 'thing-1'" << std::endl;
+    }
+  } else {
+    std::cout << "Load failed" << std::endl
+              << cv.errata()
+      ;
+  }
+}
diff --git a/lib/wccp/Makefile.am b/lib/wccp/Makefile.am
new file mode 100644
index 00000000..f782c8b6
--- /dev/null
+++ b/lib/wccp/Makefile.am
@@ -0,0 +1,42 @@
+#
+# Makefile.am for WCCP module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/api/ts
+
+#WCCP_DEFS = @WCCP_DEFS@
+#DEFS += $(WCCP_DEFS)
+
+noinst_LIBRARIES = libwccp.a
+#noinst_PROGRAMS = test-cache
+
+libwccp_a_SOURCES = \
+  Wccp.h \
+  WccpConfig.cc \
+  WccpEndPoint.cc \
+  WccpLocal.h \
+  WccpMeta.h \
+  WccpMsg.cc \
+  WccpStatic.cc \
+  WccpUtil.h
+
+#test_cache_SOURCES = \
+#  wccp-test-cache.cc wccp-test-router.cc
diff --git a/lib/wccp/Makefile.in b/lib/wccp/Makefile.in
new file mode 100644
index 00000000..f6e94724
--- /dev/null
+++ b/lib/wccp/Makefile.in
@@ -0,0 +1,882 @@
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+
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
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+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
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+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
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+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/api/ts
+
+
+#WCCP_DEFS = @WCCP_DEFS@
+#DEFS += $(WCCP_DEFS)
+noinst_LIBRARIES = libwccp.a
+#noinst_PROGRAMS = test-cache
+libwccp_a_SOURCES = \
+  Wccp.h \
+  WccpConfig.cc \
+  WccpEndPoint.cc \
+  WccpLocal.h \
+  WccpMeta.h \
+  WccpMsg.cc \
+  WccpStatic.cc \
+  WccpUtil.h
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign lib/wccp/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign lib/wccp/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libwccp.a: $(libwccp_a_OBJECTS) $(libwccp_a_DEPENDENCIES) $(EXTRA_libwccp_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libwccp.a
+	$(AM_V_AR)$(libwccp_a_AR) libwccp.a $(libwccp_a_OBJECTS) $(libwccp_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libwccp.a
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WccpConfig.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WccpEndPoint.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WccpMsg.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WccpStatic.Po@am__quote@
+
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
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+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+
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+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
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+	-rm -rf ./$(DEPDIR)
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+	distclean-tags
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+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
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+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+#test_cache_SOURCES = \
+#  wccp-test-cache.cc wccp-test-router.cc
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/wccp/Wccp.h b/lib/wccp/Wccp.h
new file mode 100644
index 00000000..9d073d51
--- /dev/null
+++ b/lib/wccp/Wccp.h
@@ -0,0 +1,512 @@
+# if ! defined(ATS_WCCP_API_HEADER)
+# define ATS_WCCP_API_HEADER
+
+/** @file
+    WCCP (v2) support API.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <ts/TsBuffer.h>
+# include <tsconfig/Errata.h>
+# include <memory.h>
+# include <ink_defs.h>
+// Nasty, defining this with no prefix. The value is still available
+// in TS_VERSION_STRING.
+# undef VERSION
+
+// INADDR_ANY
+# include <netinet/in.h>
+
+/// WCCP Support.
+namespace wccp {
+
+/// Forward declare implementation classes.
+class Impl;
+class CacheImpl;
+class RouterImpl;
+
+/// Namespace for implementation details.
+namespace detail {
+  /// Cache implementation details.
+  namespace cache {
+    struct GroupData;
+  }
+  namespace router {
+    struct GroupData;
+  }
+}
+
+/// Basic time unit for WCCP in seconds
+/// @note Sec 4.14: HERE_I_AM_T.
+static time_t const TIME_UNIT = 10;
+static time_t const ASSIGN_WAIT = (3 * TIME_UNIT) / 2;
+static time_t const RAPID_TIME = TIME_UNIT/10;
+
+/// Service group related constants.
+/// @internal In a struct so enum values can be imported to more than
+/// one class.
+struct ServiceConstants {
+  /// Methods for forwarding intercepted packets to cache.
+  /// @internal Enumerations values match protocol values.
+  enum PacketStyle {
+    NO_PACKET_STYLE = 0, ///< Undefined or invalid.
+    GRE = 1, ///< GRE tunnel only. [default]
+    L2 = 2, ///< L2 rewrite only.
+    GRE_OR_L2 = 3 ///< L2 rewrite or GRE tunnel.
+  };
+
+  /// Cache assignment supported methods.
+  /// @internal Enumerations values match protocol values.
+  enum CacheAssignmentStyle {
+    NO_CACHE_ASSIGN_STYLE = 0, ///< Undefined or invalid.
+    HASH_ONLY = 1, ///< Use only hash assignment. [default]
+    MASK_ONLY = 2, ///< Use only mask assignment.
+    HASH_OR_MASK = 3 ///< Use hash or mask assignment.
+  };
+};
+
+/** Service group definition.
+
+    Also used as serialized layout internally by ServiceGroupElt. This is kept
+    in serialized form because it is copied to and from message data far more
+    often then it is accessed directly.
+ */
+class ServiceGroup : public ServiceConstants {
+public:
+  typedef ServiceGroup self; ///< Self reference type.
+
+  /// Type of service.
+  enum Type {
+    STANDARD = 0, ///< Well known service.
+    DYNAMIC = 1 ///< Dynamic (locally defined) service.
+  };
+
+  /// Result codes for service definition.
+  enum Result {
+    DEFINED = 0, ///< Service group was created by the call.
+    EXISTS = 1, ///< Service group already existed.
+    CONFLICT = 2 ///< Service group existed but didn't match new definition.
+  };
+
+  /// @name Well known (standard) services.
+  //@{
+  /// HTTP
+  static uint8_t const HTTP = 0;
+  //@}
+  /// Service IDs of this value or less are reserved.
+  static uint8_t const RESERVED = 50;
+  
+  /// Number of ports in component (defined by protocol).
+  static size_t const N_PORTS = 8;
+
+  /// @name Flag mask values.
+  //@{
+  /// Source IP address hash
+  static uint32_t const SRC_IP_HASH = 1<<0;
+  /// Destination IP address hash
+  static uint32_t const DST_IP_HASH = 1<<1;
+  /// Source port hash.
+  static uint32_t const SRC_PORT_HASH = 1<<2;
+  /// Destination port hash
+  static uint32_t const DST_PORT_HASH = 1<<3;
+  /// @a m_ports has port information.
+  static uint32_t const PORTS_DEFINED = 1<<4;
+  /// @a m_ports has source ports (otherwise destination ports).
+  static uint32_t const PORTS_SOURCE = 1<<5;
+  /// Alternate source IP address hash
+  static uint32_t const SRC_IP_ALT_HASH = 1<<8;
+  /// Alternate destination IP address hash
+  static uint32_t const DST_IP_ALT_HASH = 1<<9;
+  /// Alternate source port hash
+  static uint32_t const SRC_PORT_ALT_HASH = 1<<10;
+  /// Alternate destination port hash
+  static uint32_t const DST_PORT_ALT_HASH = 1<<11;
+  /// All hash related flags.
+  static uint32_t const HASH_FLAGS =
+    SRC_IP_HASH | DST_IP_HASH | SRC_PORT_HASH | DST_PORT_HASH
+    | SRC_IP_ALT_HASH | DST_IP_ALT_HASH | SRC_PORT_ALT_HASH | DST_PORT_ALT_HASH
+    ;
+  //@}
+
+  /// Default constructor - no member initialization.
+  ServiceGroup();
+  /// Test for equivalent.
+  bool operator == (self const& that) const;
+  /// Test for not equivalent.
+  bool operator != (self const& that) const;
+
+  /// @name Accessors
+  //@{
+  ServiceGroup::Type getSvcType() const; ///< Get service type field.
+  /** Set the service type.
+      If @a svc is @c SERVICE_STANDARD then all fields except the
+      component header and service id are set to zero as required
+      by the protocol.
+  */
+  self& setSvcType(ServiceGroup::Type svc);
+
+  uint8_t getSvcId() const; ///< Get service ID field.
+  self& setSvcId(uint8_t id); ///< Set service ID field to @a id.
+
+  uint8_t getPriority() const; ///< Get priority field.
+  self& setPriority(uint8_t pri); ///< Set priority field to @a p.
+
+  uint8_t getProtocol() const; ///< Get protocol field.
+  self& setProtocol(uint8_t p); ///< Set protocol field to @a p.
+
+  uint32_t getFlags() const; ///< Get flags field.
+  self& setFlags(uint32_t f); ///< Set the flags flags in field to @a f.
+  /// Set the flags in the flag field that are set in @a f.
+  /// Other flags are unchanged.
+  self& enableFlags(uint32_t f);
+  /// Clear the flags in the flag field that are set in @a f.
+  /// Other flags are unchanged.
+  self& disableFlags(uint32_t f);
+
+  /// Get a port value.
+  uint16_t getPort(
+    int idx ///< Index of target port.
+  ) const;
+  /// Set a port value.
+  self& setPort(
+    int idx, ///< Index of port.
+    uint16_t port ///< Value for port.
+  );
+  /// Zero (clear) all ports.
+  self& clearPorts();
+  //@}
+
+protected:
+  uint8_t m_svc_type; ///< @ref Type.
+  uint8_t m_svc_id; ///< ID for service type.
+  uint8_t m_priority; ///< Redirection priority ordering.
+  uint8_t m_protocol; ///< IP protocol for service.
+  uint32_t m_flags; ///< Flags.
+  uint16_t m_ports[N_PORTS]; ///< Service ports.
+};
+
+/// Security component option (sub-type)
+enum SecurityOption {
+  SECURITY_NONE = 0, ///< No security @c WCCP2_NO_SECURITY
+  SECURITY_MD5 = 1 ///< MD5 security @c WCCP2_MD5_SECURITY
+};
+
+class EndPoint {
+public:
+  typedef EndPoint self; ///< Self reference type.
+  typedef Impl ImplType; ///< Implementation type.
+
+  /** Set the identifying IP address.
+      This is also used as the address for the socket.
+  */
+  self& setAddr(
+    uint32_t addr ///< IP address.
+  );
+
+  /** Check if this endpoint is ready to use.
+      @return @c true if the address has been set and services
+      have been added.
+  */
+  bool isConfigured() const;
+
+  /** Open a socket for communications.
+      
+      If @a addr is @c INADDR_ANY then the identifying address is used.
+      If that is not set this method will attempt to find an arbitrary
+      local address and use that as the identifying address.
+
+      Otherwise @a addr replaces any previously set address.
+
+      @return 0 on success, -ERRNO on failure.
+      @see setAddr
+  */
+  int open(
+    uint32_t addr = INADDR_ANY ///< Local IP address for socket.
+  );
+
+  /// Get the internal socket.
+  /// Useful primarily for socket options and using
+  /// in @c select.
+  int getSocket() const;
+
+  /// Use MD5 based security with @a key.
+  void useMD5Security(
+    char const* key ///< Shared hash key.
+  );
+  /// Use MD5 based security with @a key.
+  void useMD5Security(
+    ts::ConstBuffer const& key ///< Shared hash key.
+  );
+
+  /// Perform house keeping, including sending outbound messages.
+  int housekeeping();
+
+  /// Recieve and process a message on the socket.
+  /// @return 0 for success, -ERRNO on system error.
+  ts::Rv<int> handleMessage();
+
+protected:
+  /// Default constructor.
+  EndPoint();
+  /// Copy constructor.
+  EndPoint(self const& that);
+  /// Force virtual destructor
+  virtual ~EndPoint();
+
+  ts::IntrusivePtr<ImplType> m_ptr; ///< Implementation instance.
+
+  /** Get a pointer to the implementation instance, creating it if needed.
+      @internal This is paired with @c make so that the implementation check
+      can be done non-virtually inline, while still allowing the actual
+      implementation instantiation to be virtual so the correct type is
+      created.
+   */
+  ImplType* instance();
+
+  virtual ImplType* make() = 0; ///< Create a new implementation instance.
+};
+
+class Cache : public EndPoint {
+public:
+  typedef Cache self; ///< Self reference type.
+  typedef EndPoint super; ///< Parent type.
+  typedef CacheImpl ImplType; ///< Implementation type.
+
+  class Service;
+
+  /// Default constructor.
+  Cache();
+  /// Destructor
+  ~Cache();
+
+  /// Define services from a configuration file.
+  ts::Errata loadServicesFromFile(
+    char const* path ///< Path to file.
+  );
+
+  /** Define a service group.
+
+      Return a service reference object which references the group.
+
+      If @a result is not @c NULL then its target is set to
+      - @c ServiceGroup::DEFINED if the service was created.
+      - @c ServiceGroup::EXISTS if the service matches the existing service.
+      - @c ServiceGroup::CONFLICT if the service doesn't match the existing service.
+   */
+  Service defineServiceGroup(
+    ServiceGroup const& svc, ///< Service group description.
+    ServiceGroup::Result* result = 0
+  );
+
+  /** Add a seed router to the service group.
+
+      A seed router is one that is defined at start up and is where
+      initial messages will be sent. Other routers will be added as
+      discovered. The protocol cannot start successfully without at
+      least one seed router.
+
+      Seed routers are removed when a reply is received from that router.
+
+  */
+  self& addSeedRouter(
+    uint8_t id, ///< Service group ID.
+    uint32_t addr ///< IP address of router.
+  );
+
+  /// Number of seconds until next housekeeping activity is due.
+  time_t waitTime() const;
+protected:
+  /// Get implementation instance, creating if needed.
+  ImplType* instance();
+  /// Get the current implementation instance cast to correct type.
+  ImplType* impl();
+  /// Get the current implementation instance cast to correct type.
+  ImplType const* impl() const;
+  /// Create a new implementation instance.
+  super::ImplType* make();
+};
+
+/** Hold a reference to a service group in this end point.
+    This is useful when multiple operations are to be done on the
+    same group, rather than doing a lookup by id every time.
+*/
+class Cache::Service : public ServiceConstants {
+public:
+  typedef Service self; ///< Self reference type.
+
+  /// Default constructor (invalid reference).
+  Service();
+
+  /// Add an address for a seed router.
+  self& addSeedRouter(
+    uint32_t addr ///< Router IP address.
+  );
+  /// Set the security key.
+  self& setKey(
+    char const* key /// Shared key.
+  );
+  /// Set the service local security option.
+  self& setSecurity(
+    SecurityOption opt ///< Security style to use.
+  );
+  /// Set intercepted packet forwarding style.
+  self& setForwarding(
+    PacketStyle style ///< Type of forwarding supported.
+  );
+  /// Enable or disable packet return by layer 2 rewrite.
+  self& setReturn(
+    PacketStyle style ///< Type of return supported.
+  );
+
+  /// Set cache assignment style.
+  self& setCacheAssignment(
+    CacheAssignmentStyle style ///< Style to use.
+  );
+  
+  
+private:
+  Service(Cache const& cache, detail::cache::GroupData& group);
+  Cache m_cache; ///< Parent cache.
+  detail::cache::GroupData* m_group; ///< Service Group data.
+  friend class Cache;
+};
+
+
+class Router : public EndPoint {
+public:
+  typedef Router self; ///< Self reference type.
+  typedef EndPoint super; ///< Parent type.
+  typedef RouterImpl ImplType; ///< Implementation type.
+
+  /// Default constructor
+  Router();
+  /// Destructor.
+  ~Router();
+
+  /// Transmit pending messages.
+  int sendPendingMessages();
+protected:
+  /// Get implementation instance, creating if needed.
+  ImplType* instance();
+  /// Get the current implementation instance cast to correct type.
+  ImplType* impl();
+  /// Create a new implementation instance.
+  super::ImplType* make();
+};
+
+// ------------------------------------------------------
+inline bool
+ServiceGroup::operator != (self const& that) const {
+  return !(*this == that);
+}
+
+inline ServiceGroup::Type
+ServiceGroup::getSvcType() const {
+  return static_cast<ServiceGroup::Type>(m_svc_type);
+}
+
+inline uint8_t
+ServiceGroup::getSvcId() const {
+  return m_svc_id;
+}
+
+inline ServiceGroup&
+ServiceGroup::setSvcId(uint8_t id) {
+  m_svc_id = id;
+  return *this;
+}
+
+inline uint8_t
+ServiceGroup::getPriority() const {
+  return m_priority;
+}
+
+inline ServiceGroup&
+ServiceGroup::setPriority(uint8_t pri) {
+  m_priority = pri;
+  return *this;
+}
+
+inline uint8_t
+ServiceGroup::getProtocol() const {
+  return m_protocol;
+}
+
+inline ServiceGroup&
+ServiceGroup::setProtocol(uint8_t proto) {
+  m_protocol = proto;
+  return *this;
+}
+
+inline uint32_t
+ServiceGroup::getFlags() const {
+  return ntohl(m_flags);
+}
+
+inline ServiceGroup&
+ServiceGroup::setFlags(uint32_t flags) {
+  m_flags = htonl(flags);
+  return *this;
+}
+
+inline ServiceGroup&
+ServiceGroup::enableFlags(uint32_t flags) {
+  m_flags |= htonl(flags);
+  return *this;
+}
+
+inline ServiceGroup&
+ServiceGroup::disableFlags(uint32_t flags) {
+  m_flags &= ~htonl(flags);
+  return *this;
+}
+
+inline uint16_t
+ServiceGroup::getPort (int idx) const {
+  return ntohs(m_ports[idx]);
+}
+
+inline ServiceGroup&
+ServiceGroup::setPort(int idx, uint16_t port) {
+  m_ports[idx] = htons(port);
+  return *this;
+}
+
+inline ServiceGroup&
+ServiceGroup::clearPorts() {
+  memset(m_ports, 0, sizeof(m_ports));
+  return *this;
+}
+
+inline Cache::Service::Service() : m_group(0) { }
+
+inline Cache::Service::Service(
+  Cache const& cache,
+  detail::cache::GroupData& group
+) : m_cache(cache), m_group(&group) {
+}
+
+inline void EndPoint::useMD5Security(char const* key) {
+  this->useMD5Security(ts::ConstBuffer(key, strlen(key)));
+}
+// ------------------------------------------------------
+
+} // namespace Wccp
+# endif // include guard.
diff --git a/lib/wccp/WccpConfig.cc b/lib/wccp/WccpConfig.cc
new file mode 100644
index 00000000..e028b726
--- /dev/null
+++ b/lib/wccp/WccpConfig.cc
@@ -0,0 +1,796 @@
+/** @file WCCP Configuration processing.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "WccpLocal.h"
+# include <sstream>
+# include <tsconfig/TsValue.h>
+# include <arpa/inet.h>
+# include <iostream>
+# include <errno.h>
+# include <stdlib.h>
+
+using ts::config::Configuration;
+using ts::config::Value;
+
+// Support that must go in the standard namespace.
+namespace std {
+
+inline ostream& operator << ( ostream& s, ts::ConstBuffer const& b ) {
+  if (b._ptr) s.write(b._ptr, b._size);
+  else s << b._size;
+  return s;
+}
+
+} // namespace std
+
+// WCCP related things that are file local.
+namespace {
+using namespace wccp;
+
+// Scratch global list of seed router addresses.
+// Yeah, not thread safe, but it's just during configuration load.
+// Logic somewhat changed - can we move in to the load method?
+std::vector<uint32_t> Seed_Router;
+
+// Names used for various elements and properties.
+static char const * const SVC_NAME = "service";
+
+static char const * const SVC_PROP_ID = "id";
+static char const * const SVC_PROP_TYPE = "type";
+static char const * const SVC_PROP_PRIORITY = "priority";
+static char const * const SVC_PROP_PROTOCOL = "protocol";
+static char const * const SVC_PROP_FLAGS = "flags";
+static char const * const SVC_PROP_PRIMARY_HASH = "primary-hash";
+static char const * const SVC_PROP_ALT_HASH = "alt-hash";
+static char const * const SVC_PROP_PORTS = "ports";
+static char const * const SVC_PROP_PORT_TYPE = "port-type";
+static char const * const SVC_PROP_SECURITY = "security";
+static char const * const SVC_PROP_ROUTERS = "routers";
+static char const * const SVC_PROP_FORWARD = "forward";
+static char const * const SVC_PROP_RETURN = "return";
+static char const * const SVC_PROP_ASSIGN = "assignment";
+
+static char const * const SECURITY_PROP_OPTION = "option";
+static char const * const SECURITY_PROP_KEY = "key";
+
+/// Helper structure for processing configuration strings.
+struct CfgString {
+  char const* m_text; ///< Text value of the option.
+  bool m_found; ///< String was found.
+};
+typedef std::vector<CfgString> CfgOpts;
+
+# define N_OPTS(x) (sizeof(x) / sizeof(*x))
+
+CfgString FORWARD_OPTS[] = { { "gre" } , { "l2" } };
+size_t const N_FORWARD_OPTS = sizeof(FORWARD_OPTS)/sizeof(*FORWARD_OPTS);
+
+CfgString RETURN_OPTS[] = { { "gre" } , { "l2" } };
+size_t const N_RETURN_OPTS = sizeof(RETURN_OPTS)/sizeof(*RETURN_OPTS);
+
+CfgString ASSIGN_OPTS[] = { { "hash" } , { "mask" } };
+
+CfgString HASH_OPTS[] = { { "src_ip" } , { "dst_ip" } , { "src_port" } , { "dst_port" } };
+
+ts::Errata::Code code_max(ts::Errata const& err) {
+  ts::Errata::Code zret = std::numeric_limits<ts::Errata::Code::raw_type>::min();
+  ts::Errata::const_iterator spot = err.begin();
+  ts::Errata::const_iterator limit = err.end();
+  for ( ; spot != limit ; ++spot )
+    zret = std::max(zret, spot->getCode());
+  return zret;
+}
+
+struct ValueNamePrinter {
+  Value const& _v;
+  ValueNamePrinter(Value const& v) : _v(v) {}
+};
+
+std::ostream& operator << ( std::ostream& out, ValueNamePrinter const& v ) {
+  ts::ConstBuffer const& name = v._v.getName();
+  if (name._ptr) out << "'" << name << "'";
+  else out << v._v.getIndex();
+  return out;
+}
+
+#if 0 /* silence -Wunused-function */
+ts::Errata::Message File_Syntax_Error(int line, char const* text) {
+  std::ostringstream out;
+  out << "Service configuration error. Line "
+      << line
+      << ": " << text
+    ;
+  return ts::Errata::Message(1, LVL_FATAL, out.str());
+}
+
+ts::Errata::Message File_Read_Error(char const* text) {
+  std::ostringstream out;
+  out << "Failed to parse configuration file."
+      << ": " << text
+    ;
+  return ts::Errata::Message(2, LVL_FATAL, out.str());
+}
+#endif
+
+ts::Errata::Message Unable_To_Create_Service_Group(int line) {
+  std::ostringstream out;
+  out << "Unable to create service group at line " << line
+      << " because of configuration errors."
+    ;
+  return ts::Errata::Message(23, LVL_FATAL, out.str());
+}
+
+ts::Errata::Message Services_Not_Found() {
+  return ts::Errata::Message(3, LVL_INFO, "No services found in configuration.");
+}
+
+ts::Errata::Message Services_Not_A_Sequence() {
+  return ts::Errata::Message(4, LVL_INFO, "The 'services' setting was not a list nor array.");
+}
+
+ts::Errata::Message Service_Not_A_Group(int line) {
+  std::ostringstream out;
+  out << "'" << SVC_NAME << "' must be a group at line "
+      << line << "."
+    ;
+  return ts::Errata::Message(5, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Service_Type_Defaulted(wccp::ServiceGroup::Type type, int line) {
+  std::ostringstream out;
+  out << "'type' not found in " << SVC_NAME << " at line "
+      << line << "' -- defaulting to "
+      << ( type == wccp::ServiceGroup::STANDARD ? "STANDARD" : "DYNAMIC" )
+    ;
+  return ts::Errata::Message(6, LVL_INFO, out.str());
+}
+
+ts::Errata::Message Service_Type_Invalid(ts::ConstBuffer const& text, int line) {
+  std::ostringstream out;
+  out << "Service type '" << text 
+      << "' at line " << line
+      << " invalid. Must be \"STANDARD\" or \"DYNAMIC\""
+    ;
+  return ts::Errata::Message(7, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Prop_Not_Found(char const* prop_name, char const* group_name, int line) {
+  std::ostringstream out;
+  out << "Required '" << prop_name << "' property not found in '"
+      << group_name << "' at line " << line << "."
+    ;
+  return ts::Errata::Message(8, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Prop_Invalid_Type(
+  Value const& prop_cfg,
+  ts::config::ValueType expected
+) {
+  std::ostringstream out;
+  out << "'" << prop_cfg.getName() << "' at line " << prop_cfg.getSourceLine()
+      << " is of type '" << prop_cfg.getType()
+      << "' instead of required type '" << expected << "'."
+    ;
+  return ts::Errata::Message(9, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Prop_List_Invalid_Type(
+  Value const& elt_cfg, ///< List element.
+  ts::config::ValueType expected
+) {
+  std::ostringstream out;
+  out << "Element " << ValueNamePrinter(elt_cfg)
+      << " at line " << elt_cfg.getSourceLine()
+      << " in the aggregate property '" << elt_cfg.getParent().getName()
+      << "' is of type '" << elt_cfg.getType()
+      << "' instead of required type '" << expected << "'."
+    ;
+  return ts::Errata::Message(9, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Svc_Prop_Out_Of_Range(
+  char const* name,
+  Value const& elt_cfg,
+  int v, int min, int max
+) {
+  std::ostringstream out;
+  out << "Service property '" << name
+      << "' at line " << elt_cfg.getSourceLine()
+      << " has a value " << v
+      << " that is not in the allowed range of "
+      << min << ".." << max << "."
+    ;
+  return ts::Errata::Message(10, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Svc_Prop_Ignored(char const* name, int line) {
+  std::ostringstream out;
+  out << "Service property '" << name << "' at line " << line
+      << " ignored because the service is of type standard."
+    ;
+  return ts::Errata::Message(11, LVL_INFO, out.str());
+}
+
+#if 0 /* silence -Wunused-function */
+ts::Errata::Message Svc_Flags_No_Hash_Set(int line) {
+  std::ostringstream out;
+  out << "Service flags have no hash set at line " << line
+    ;
+  return ts::Errata::Message(12, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Svc_Flags_Ignored(int line) {
+  std::ostringstream out;
+  out << "Invalid service flags at line  " << line
+      << " ignored."
+    ;
+  return ts::Errata::Message(13, LVL_INFO, out.str());
+}
+#endif
+
+ts::Errata::Message Svc_Ports_Too_Many(int line, int n) {
+  std::ostringstream out;
+  out << "Excess ports ignored at line " << line
+      << ". " << n << " ports specified, only" 
+      << wccp::ServiceGroup::N_PORTS << " supported."
+    ;
+  return ts::Errata::Message(14, LVL_INFO, out.str());
+}
+
+ts::Errata::Message Svc_Ports_Malformed(int line) {
+  std::ostringstream out;
+  out << "Port value ignored (not a number) at line " << line
+      << "."
+    ;
+  return ts::Errata::Message(15, LVL_INFO, out.str());
+}
+
+ts::Errata::Message Svc_Ports_None_Valid(int line) {
+  std::ostringstream out;
+  out << "A '" << SVC_PROP_PORTS << "' property was found at line "
+      << line << " but none of the ports were valid."
+    ;
+  return  ts::Errata::Message(17, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Svc_Ports_Not_Found(int line) {
+  std::ostringstream out;
+  out << "Ports not found in service at line " << line
+      << ". Ports must be defined for a dynamic service.";
+  return  ts::Errata::Message(18, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Svc_Prop_Ignored_In_Standard(const char* name, int line) {
+  std::ostringstream out;
+  out << "Service property '" << name << "' at line " << line
+      << " ignored because the service is of type STANDARD."
+    ;
+  return ts::Errata::Message(19, LVL_INFO, out.str());
+}
+
+ts::Errata::Message Security_Opt_Invalid(ts::ConstBuffer const& text, int line) {
+  std::ostringstream out;
+  out << "Security option '" << text
+      << "' at line " << line
+      << " is invalid. It must be 'none' or 'md5'."
+    ;
+  return ts::Errata::Message(20, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Value_Malformed(char const* name, char const* text, int line) {
+  std::ostringstream out;
+  out << "'" << name << "' value '" << text
+      << "' malformed at line " << line << "."
+    ;
+  return ts::Errata::Message(21, LVL_WARN, out.str());
+}
+
+ts::Errata::Message No_Valid_Routers(int line) {
+  std::ostringstream out;
+  out << "No valid IP address for routers found for Service Group at line "
+      << line << "."
+    ;
+  return ts::Errata::Message(22, LVL_WARN, out.str());
+}
+
+ts::Errata::Message Ignored_Option_Value(
+  ts::ConstBuffer const& text,
+  ts::ConstBuffer const& name,
+  int line
+) {
+  std::ostringstream out;
+  out << "Value '" << text << "' at line " << line
+      << " was ignored because it is not a valid option for '"
+      << name << "'."
+    ;
+  return ts::Errata::Message(24, LVL_INFO, out.str());
+}
+
+ts::Errata::Message Ignored_Opt_Errors(
+  char const* name,
+  int line
+) {
+  std::ostringstream out;
+  out << "Errors in  '" << name << "' at line " << line
+      << " were ignored."
+    ;
+  return ts::Errata::Message(28, LVL_INFO, out.str());
+}
+
+ts::Errata::Message List_Valid_Opts(
+  ts::ConstBuffer const& name,
+  int line,
+  CfgString* values,
+  size_t n
+) {
+  std::ostringstream out;
+  out << "Valid values for the '" << name << "' property at line " << line
+      << " are: "
+    ;
+  out << '"' << values[0].m_text << '"';
+  for ( size_t i = 1 ; i < n ; ++i )
+    out << ", \"" << values[i].m_text << '"';
+  out << '.';
+  return ts::Errata::Message(29, LVL_INFO, out.str());
+}
+
+ts::Errata::Message Port_Type_Invalid(ts::ConstBuffer const& text, int line) {
+  std::ostringstream out;
+  out << "Value '" << text
+      << "' at line " << line
+      << "for property '" << SVC_PROP_PORT_TYPE
+      << "' is invalid. It must be 'src' or 'dst'."
+    ;
+  return ts::Errata::Message(30, LVL_WARN, out.str());
+}
+
+} // anon namespace
+
+namespace wccp {
+
+inline bool operator == ( ts::ConstBuffer const& b, char const* text ) {
+  return 0 == strncasecmp(text, b._ptr, b._size);
+}
+
+inline bool operator == ( char const* text, ts::ConstBuffer const& b ) {
+  return 0 == strncasecmp(text, b._ptr, b._size);
+}
+
+ts::Errata
+load_option_set(Value const& setting, CfgString* opts, size_t count) {
+  ts::Errata zret;
+  CfgString* spot;
+  CfgString* limit = opts + count;
+  ts::ConstBuffer const& name  = setting.getName();
+  int src_line = setting.getSourceLine();
+
+  // Clear all found flags.
+  for ( spot = opts ; spot < limit ; ++spot ) spot->m_found = false;
+
+  // Walk through the strings in the setting.
+  if (setting.isContainer()) {
+    int nr = setting.childCount();
+    bool list_opts = false;
+    for ( int i = 0 ; i < nr ; ++i ) {
+      Value item = setting[i];
+      if (ts::config::StringValue == item.getType()) {
+        ts::ConstBuffer text = item.getText();
+        for ( spot = opts ; spot < limit ; ++spot ) {
+          if (spot->m_text == text) {
+            spot->m_found = true;
+            break;
+          }
+        }
+        if (spot >= limit) {
+          zret.push(Ignored_Option_Value(text, name, item.getSourceLine()));
+          list_opts = true;
+        }
+      } else {
+        zret.push(Prop_Invalid_Type(setting, ts::config::StringValue));
+      }
+    }
+    if (list_opts)
+      zret.push(List_Valid_Opts(name, src_line, opts, count));
+  } else {
+    zret.push(Prop_Invalid_Type(setting, ts::config::ListValue));
+  }
+  return zret;
+}
+
+/** On success this returns a non @c NULL pointer if the MD5 option is
+    set.  In that case the pointer points at the MD5 key.  Otherwise
+    the option was none and the pointer is @c NULL
+ */
+ts::Rv<ts::ConstBuffer>
+load_security (
+  Value const& setting ///< Security setting.
+) {
+  ts::Rv<ts::ConstBuffer> zret;
+  int src_line;
+  ts::ConstBuffer text;
+
+  zret.result().set(0);
+
+  src_line = setting.getSourceLine();
+  if (ts::config::GroupValue == setting.getType()) {
+    Value opt = setting[SECURITY_PROP_OPTION];
+    if (opt) {
+      if (ts::config::StringValue == opt.getType()) {
+        text = opt.getText();
+        if ("none" == text) {
+        } else if ("md5" == text) {
+          Value key = setting[SECURITY_PROP_KEY];
+          if (key) {
+            if (ts::config::StringValue == key.getType()) {
+              zret = key.getText();
+            } else {
+              zret.push(Prop_Invalid_Type(key, ts::config::StringValue));
+            }
+          } else {
+            zret.push(Prop_Not_Found(SECURITY_PROP_KEY, SVC_PROP_SECURITY, src_line));
+          }
+        } else {
+          zret.push(Security_Opt_Invalid(text, opt.getSourceLine()));
+        }
+      } else {
+        zret.push(Prop_Invalid_Type(opt, ts::config::StringValue));
+      }
+    } else {
+      zret.push(Prop_Not_Found(SECURITY_PROP_OPTION, SVC_PROP_SECURITY, src_line));
+    }
+  } else {
+    zret.push(Prop_Invalid_Type(setting, ts::config::GroupValue));
+  }
+  return zret;
+}
+
+/// Process a router address list.
+ts::Errata
+load_routers (
+  Value const& setting, ///< Source of addresses.
+  std::vector<uint32_t>& addrs ///< Output list
+) {
+  ts::Errata zret;
+  char const* text;
+  static char const * const NAME = "IPv4 Address";
+
+  if (setting.isContainer()) {
+    int nr = setting.childCount();
+    for ( int i = 0 ; i < nr ; ++i ) {
+      Value const& addr_cfg = setting[i];
+      int addr_line = addr_cfg.getSourceLine();
+      in_addr addr;
+      if (ts::config::StringValue == addr_cfg.getType()) {
+        text = addr_cfg.getText()._ptr;
+        if (inet_aton(text, &addr)) addrs.push_back(addr.s_addr);
+        else zret.push(Value_Malformed(NAME, text, addr_line));
+      } else {
+        zret.push(Prop_List_Invalid_Type(addr_cfg, ts::config::StringValue));
+      }
+    }
+  } else {
+    zret.push(Prop_Invalid_Type(setting, ts::config::ListValue));
+  }
+  return zret;
+}
+
+ts::Errata
+CacheImpl::loadServicesFromFile(char const* path) {
+  ts::Errata zret;
+  int src_line = 0; // scratch for local source line caching.
+  std::vector<uint32_t> routers; // scratch per service loop.
+  Value prop; // scratch var.
+
+  ts::Rv<Configuration> cv = Configuration::loadFromPath(path);
+  if (!cv.isOK()) return cv.errata();
+
+  ts::config::Configuration cfg = cv.result();
+  Value svc_list = cfg.find("services");
+  // No point in going on from here.
+  if (!svc_list) return Services_Not_Found();
+
+  if (!svc_list.isContainer()) return Services_Not_A_Sequence();
+
+  // Check for global (default) security setting.
+  if ((prop = cfg[SVC_PROP_SECURITY]).hasValue()) {
+    ts::Rv<ts::ConstBuffer> rv = load_security(prop);
+    if (rv.isOK()) this->useMD5Security(rv);
+    else zret.pull(rv.errata());
+  }
+
+  if ((prop = cfg[SVC_PROP_ROUTERS]).hasValue()) {
+    zret.pull(load_routers(prop, Seed_Router).doNotLog());
+  }
+
+  int idx, nsvc;
+  for ( idx = 0, nsvc = svc_list.childCount() ; idx < nsvc ; ++idx ) {
+    int x; // scratch int.
+    char const* md5_key = 0;
+    ts::ConstBuffer text;
+    SecurityOption security_style = SECURITY_NONE;
+    bool use_group_local_security = false;
+    Value const& svc_cfg = svc_list[idx];
+    int svc_line = svc_cfg.getSourceLine();
+    ServiceGroup svc_info;
+
+    if (ts::config::GroupValue != svc_cfg.getType()) {
+      zret.push(Service_Not_A_Group(svc_line));
+      continue;
+    }
+
+    // Get the service ID.
+    if ((prop = svc_cfg[SVC_PROP_ID]).hasValue()) {
+      if (ts::config::IntegerValue == prop.getType()) {
+        x = atoi(prop.getText()._ptr);
+        if (0 <= x && x <= 255)
+          svc_info.setSvcId(x);
+        else
+          zret.push(Svc_Prop_Out_Of_Range(SVC_PROP_ID, prop, x, 0, 255));
+      } else {
+        zret.push(Prop_Invalid_Type(prop, ts::config::IntegerValue));
+      }
+    } else {
+      zret.push(Prop_Not_Found(SVC_PROP_ID, SVC_NAME, svc_line));
+    }
+
+    // Service type.
+    if ((prop = svc_cfg[SVC_PROP_TYPE]).hasValue()) {
+      if (ts::config::StringValue == prop.getType()) {
+        text = prop.getText();
+        if ("DYNAMIC" == text)
+          svc_info.setSvcType(ServiceGroup::DYNAMIC);
+        else if ("STANDARD" == text)
+          svc_info.setSvcType(ServiceGroup::STANDARD);
+        else
+          zret.push(Service_Type_Invalid(text, prop.getSourceLine()));
+      } else {
+        zret.push(Prop_Invalid_Type(prop, ts::config::StringValue));
+      }
+    } else { // default type based on ID.
+      ServiceGroup::Type svc_type =
+        svc_info.getSvcId() <= ServiceGroup::RESERVED
+          ? ServiceGroup::STANDARD
+          : ServiceGroup::DYNAMIC
+        ;
+      svc_info.setSvcType(svc_type);
+      zret.push(Service_Type_Defaulted(svc_type, svc_line));
+    }
+
+    // Get the protocol.
+    if ((prop = svc_cfg[SVC_PROP_PROTOCOL]).hasValue()) {
+      if (svc_info.getSvcType() == ServiceGroup::STANDARD) {
+        zret.push(Svc_Prop_Ignored(SVC_PROP_PROTOCOL, prop.getSourceLine()));
+      } else if (ts::config::IntegerValue == prop.getType()) {
+        x = atoi(prop.getText()._ptr);
+        if (0 <= x && x <= 255)
+          svc_info.setProtocol(x);
+        else
+          zret.push(Svc_Prop_Out_Of_Range(SVC_PROP_ID, prop, x, 0, 255));
+      } else {
+        zret.push(Prop_Invalid_Type(prop, ts::config::IntegerValue));
+      }
+    } else if (svc_info.getSvcType() != ServiceGroup::STANDARD) {
+      // Required if it's not standard / predefined.
+      zret.push(Prop_Not_Found(SVC_PROP_PROTOCOL, SVC_NAME, svc_line));
+    }
+
+    // Get the priority.
+    svc_info.setPriority(0); // OK to default to this value.
+    if ((prop = svc_cfg[SVC_PROP_PRIORITY]).hasValue()) {
+      if (svc_info.getSvcType() == ServiceGroup::STANDARD) {
+        zret.push(Svc_Prop_Ignored(SVC_PROP_PRIORITY, prop.getSourceLine()));
+      } else if (ts::config::IntegerValue == prop.getType()) {
+        x = atoi(prop.getText()._ptr);
+        if (0 <= x && x <= 255)
+          svc_info.setPriority(x);
+        else
+          zret.push(Svc_Prop_Out_Of_Range(SVC_PROP_ID, prop, x, 0, 255));
+      } else {
+        zret.push(Prop_Invalid_Type(prop, ts::config::IntegerValue));
+      }
+    }
+
+    // Service flags.
+    svc_info.setFlags(0);
+    if ((prop = svc_cfg[SVC_PROP_PRIMARY_HASH]).hasValue()) {
+      ts::Errata status = load_option_set(prop, HASH_OPTS, N_OPTS(HASH_OPTS));
+      uint32_t f = 0;
+      src_line = prop.getSourceLine();
+      for ( size_t i = 0 ; i < N_OPTS(HASH_OPTS) ; ++i )
+        if (HASH_OPTS[i].m_found) f |= ServiceGroup::SRC_IP_HASH << i;
+      if (f) {
+        svc_info.enableFlags(f);
+        if (!status) zret.push(Ignored_Opt_Errors(SVC_PROP_PRIMARY_HASH, src_line).set(status));
+      } else {
+        zret.push(List_Valid_Opts(prop.getName(), src_line, HASH_OPTS, N_OPTS(HASH_OPTS)).set(status));
+      }
+    } else {
+      zret.push(Prop_Not_Found(SVC_PROP_PRIMARY_HASH, SVC_NAME, svc_line));
+    }
+
+    if ((prop = svc_cfg[SVC_PROP_ALT_HASH]).hasValue()) {
+      ts::Errata status = load_option_set(prop, HASH_OPTS, N_OPTS(HASH_OPTS));
+      uint32_t f = 0;
+      src_line = prop.getSourceLine();
+      for ( size_t i = 0 ; i < N_OPTS(HASH_OPTS) ; ++i )
+        if (HASH_OPTS[i].m_found) f |= ServiceGroup::SRC_IP_ALT_HASH << i;
+      if (f) svc_info.enableFlags(f);
+      if (!status) zret.push(Ignored_Opt_Errors(SVC_PROP_ALT_HASH, src_line).set(status));
+    }
+
+    if ((prop = svc_cfg[SVC_PROP_PORT_TYPE]).hasValue()) {
+      src_line = prop.getSourceLine();
+      if (ts::config::StringValue == prop.getType()) {
+        text = prop.getText();
+        if ("src" ==  text)
+          svc_info.enableFlags(ServiceGroup::PORTS_SOURCE);
+        else if ("dst" == text)
+          svc_info.disableFlags(ServiceGroup::PORTS_SOURCE);
+        else
+          zret.push(Port_Type_Invalid(text, src_line));
+      } else {
+        zret.push(Prop_Invalid_Type(prop, ts::config::StringValue));
+      }
+    }
+
+    // Ports for service.
+    svc_info.clearPorts();
+    if ((prop = svc_cfg[SVC_PROP_PORTS]).hasValue()) {
+      src_line = prop.getSourceLine();
+      if (ServiceGroup::STANDARD == svc_info.getSvcType()) {
+        zret.push(Svc_Prop_Ignored_In_Standard(SVC_PROP_PORTS, src_line));
+      } else {
+        if ( prop.isContainer() ) {
+          size_t nport = prop.childCount();
+          size_t pidx, sidx;
+          bool malformed_error = false;
+          // Clip to maximum protocol allowed ports.
+          if (nport > ServiceGroup::N_PORTS) {
+            zret.push(Svc_Ports_Too_Many(src_line, nport));
+            nport = ServiceGroup::N_PORTS;
+          }
+          // Step through the ports.
+          for ( pidx = sidx = 0 ; pidx < nport ; ++pidx ) {
+            Value const& port_cfg = prop[pidx];
+            if (ts::config::IntegerValue == port_cfg.getType()) {
+              x = atoi(port_cfg.getText()._ptr);
+              if (0 <= x && x <= 65535)
+                svc_info.setPort(sidx++, x);
+              else
+                zret.push(Svc_Prop_Out_Of_Range(SVC_PROP_PORTS, port_cfg, x, 0, 65535));
+            } else if (!malformed_error) { // only report this once.
+              zret.push(Svc_Ports_Malformed(src_line));
+              malformed_error = true;
+            }
+          }
+          if (sidx) svc_info.enableFlags(ServiceGroup::PORTS_DEFINED);
+          else zret.push(Svc_Ports_None_Valid(src_line));
+        } else {
+          zret.push(Prop_Invalid_Type(prop, ts::config::ListValue));
+        }
+      }
+    } else if (ServiceGroup::STANDARD != svc_info.getSvcType()) {
+      zret.push(Svc_Ports_Not_Found(svc_line));
+    }
+
+    // Security option for this service group.
+    if ((prop = svc_cfg[SVC_PROP_SECURITY]).hasValue()) {
+      ts::Rv<ts::ConstBuffer> security = load_security(prop);
+      if (security.isOK()) {
+        use_group_local_security = true;
+        if (security.result()._ptr) {
+          md5_key = security.result()._ptr;
+          security_style = SECURITY_MD5;
+        } else {
+          security_style = SECURITY_NONE;
+        }
+      }
+      zret.pull(security.errata());
+    }
+
+    // Get any group specific routers.
+    routers.clear(); // reset list.
+    if ((prop = svc_cfg[SVC_PROP_ROUTERS]).hasValue()) {
+      ts::Errata status = load_routers(prop, routers);
+      if (!status)
+        zret.push(ts::Errata::Message(23, LVL_INFO, "Router specification invalid.").set(status));
+    }
+    if (!routers.size() && !Seed_Router.size())
+      zret.push(No_Valid_Routers(svc_line));
+
+    // See if can proceed with service group creation.
+    ts::Errata::Code code = code_max(zret);
+    if (code >= LVL_WARN) {
+      zret = Unable_To_Create_Service_Group(svc_line).set(zret);
+      return zret;
+    }
+
+    // Properties after this are optional so we can proceed if they fail.
+    GroupData& svc = this->defineServiceGroup(svc_info);
+    // Add seed routers.
+    std::vector<uint32_t>::iterator rspot, rlimit;
+    for ( rspot = routers.begin(), rlimit = routers.end() ; rspot != rlimit ; ++rspot )
+      svc.seedRouter(*rspot);
+    for ( rspot = Seed_Router.begin(), rlimit = Seed_Router.end() ; rspot != rlimit ; ++rspot )
+      svc.seedRouter(*rspot);
+
+    if (use_group_local_security)
+      svc.setSecurity(security_style).setKey(md5_key);
+
+    // Look for optional properties.
+
+    svc.m_packet_forward = ServiceGroup::GRE; // default
+    if ((prop = svc_cfg[SVC_PROP_FORWARD]).hasValue()) {
+      ts::Errata status = load_option_set(prop, FORWARD_OPTS, N_FORWARD_OPTS);
+      bool gre = FORWARD_OPTS[0].m_found;
+      bool l2 = FORWARD_OPTS[1].m_found;
+      if (gre || l2) {
+        svc.m_packet_forward = 
+          gre
+            ? l2 ? ServiceGroup::GRE_OR_L2 : ServiceGroup::GRE
+            : ServiceGroup::L2
+          ;
+        if (!status.isOK())
+          zret.push(Ignored_Opt_Errors(SVC_PROP_FORWARD, prop.getSourceLine()).set(status));
+      } else {
+        zret.push(ts::Errata::Message(26, LVL_INFO, "Defaulting to GRE forwarding.").set(status));
+      }
+    }
+
+    svc.m_packet_return = ServiceGroup::GRE; // default.
+    if ((prop = svc_cfg[SVC_PROP_RETURN]).hasValue()) {
+      ts::Errata status = load_option_set(prop, RETURN_OPTS, N_RETURN_OPTS);
+      bool gre = RETURN_OPTS[0].m_found;
+      bool l2 = RETURN_OPTS[1].m_found;
+      if (gre || l2) {
+        svc.m_packet_return =
+          gre
+            ? l2 ? ServiceGroup::GRE_OR_L2 : ServiceGroup::GRE
+            : ServiceGroup::L2
+          ;
+        if (!status.isOK()) zret.push(Ignored_Opt_Errors(SVC_PROP_RETURN, prop.getSourceLine()).set(status));
+      } else {
+        zret.push(ts::Errata::Message(26, LVL_INFO, "Defaulting to GRE return.").set(status));
+      }
+    }
+
+    svc.m_cache_assign = ServiceGroup::HASH_ONLY; // default
+    if ((prop = svc_cfg[SVC_PROP_ASSIGN]).hasValue()) {
+      ts::Errata status = load_option_set(prop, ASSIGN_OPTS, N_OPTS(ASSIGN_OPTS));
+      bool hash = ASSIGN_OPTS[0].m_found;
+      bool mask = ASSIGN_OPTS[1].m_found;
+      if (hash || mask) {
+        svc.m_cache_assign =
+          hash
+            ? mask ? ServiceGroup::HASH_OR_MASK : ServiceGroup::HASH_ONLY
+            : ServiceGroup::MASK_ONLY
+          ;
+        if (!status.isOK()) zret.push(Ignored_Opt_Errors(SVC_PROP_ASSIGN, prop.getSourceLine()).set(status));
+      } else {
+        status.push(ts::Errata::Message(26, LVL_INFO, "Defaulting to hash assignment only."));
+        zret.push(List_Valid_Opts(prop.getName(), src_line, ASSIGN_OPTS, N_OPTS(ASSIGN_OPTS)).set(status));
+      }
+    }
+  }
+  return zret;
+}
+
+} // namespace.
diff --git a/lib/wccp/WccpEndPoint.cc b/lib/wccp/WccpEndPoint.cc
new file mode 100644
index 00000000..4d759eb4
--- /dev/null
+++ b/lib/wccp/WccpEndPoint.cc
@@ -0,0 +1,1238 @@
+/** @file WCCP End Point class implementation.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "WccpLocal.h"
+# include "WccpUtil.h"
+# include "WccpMeta.h"
+# include <errno.h>
+# include "ink_string.h"
+# include "ink_defs.h"
+// ------------------------------------------------------
+namespace wccp {
+
+#if defined IP_RECVDSTADDR
+# define DSTADDR_SOCKOPT IP_RECVDSTADDR
+# define DSTADDR_DATASIZE (CMSG_SPACE(sizeof(struct in_addr)))
+# define dstaddr(x) (CMSG_DATA(x))
+#elif defined IP_PKTINFO
+# define DSTADDR_SOCKOPT IP_PKTINFO
+# define DSTADDR_DATASIZE (CMSG_SPACE(sizeof(struct in_pktinfo)))
+# define dstaddr(x) (&(((struct in_pktinfo *)(CMSG_DATA(x)))->ipi_addr))
+#else
+# error "can't determine socket option"
+#endif 
+
+// ------------------------------------------------------
+Impl::GroupData::GroupData()
+  : m_generation(0)
+  , m_use_security_opt(false)
+  , m_use_security_key(false) {
+}
+
+Impl::GroupData&
+Impl::GroupData::setKey(char const* key) {
+  m_use_security_key = true;
+  strncpy(m_security_key, key, SecurityComp::KEY_SIZE);
+  return *this;
+}
+
+Impl::GroupData&
+Impl::GroupData::setSecurity(SecurityOption style) {
+  m_use_security_opt = true;
+  m_security_opt = style;
+  return *this;
+}
+
+Impl::Impl()
+  : m_addr(INADDR_ANY)
+  , m_fd(ts::NO_FD) {
+}
+
+Impl::~Impl() {
+  this->close();
+}
+
+int
+Impl::open(uint addr) {
+  struct sockaddr saddr;
+  sockaddr_in& in_addr = reinterpret_cast<sockaddr_in&>(saddr);
+  int fd;
+
+  if (ts::NO_FD != m_fd) {
+    log(LVL_INFO, "Attempted to open already open WCCP Endpoint");
+    return -EALREADY;
+  }
+
+  if (ts::NO_FD == (fd = socket(PF_INET, SOCK_DGRAM, 0))) {
+    log_errno(LVL_FATAL, "Failed to create socket");
+    return -errno;
+  }
+
+  if (INADDR_ANY != addr) m_addr = addr; // overridden.
+  memset(&saddr, 0, sizeof(saddr));
+  in_addr.sin_family = AF_INET;
+  in_addr.sin_port = htons(DEFAULT_PORT);
+  in_addr.sin_addr.s_addr = m_addr;
+  int zret = bind(fd, &saddr, sizeof(saddr));
+  if (-1 == zret) {
+    log_errno(LVL_FATAL, "Failed to bind socket to port");
+    this->close();
+    return -errno;
+  }
+  logf(LVL_INFO, "Socket bound to %s:%d", ip_addr_to_str(m_addr), DEFAULT_PORT);
+
+  // Now get the address. Usually the same but possibly different,
+  // certainly if addr was INADDR_ANY.
+  if (INADDR_ANY == m_addr && INADDR_ANY == (m_addr = Get_Local_Address(fd))) {
+    log_errno(LVL_FATAL, "Failed to get local address for socket");
+    this->close();
+    return -errno;
+  }
+
+  // Enable retrieval of destination address on packets.
+  int ip_pktinfo_flag = 1;
+  if (-1 == setsockopt(fd, IPPROTO_IP, DSTADDR_SOCKOPT, &ip_pktinfo_flag, sizeof(ip_pktinfo_flag))) {
+    log_errno(LVL_FATAL, "Failed to enable destination address retrieval");
+    this->close();
+    return -errno;
+  }
+
+# if defined IP_MTU_DISCOVER
+  /// Disable PMTU on Linux because of a bug in IOS routers.
+  /// WCCP packets are rejected as duplicates if the IP fragment
+  /// identifier is 0, which is the value used when PMTU is enabled.
+  int pmtu = IP_PMTUDISC_DONT;
+  if (-1 == setsockopt(fd, IPPROTO_IP, IP_MTU_DISCOVER, &pmtu, sizeof(pmtu))) {
+    log_errno(LVL_FATAL, "Failed to disable PMTU on WCCP socket.");
+    this->close();
+    return -errno;
+  }
+# endif
+
+  m_fd = fd;
+  return 0;
+}
+
+void
+Impl::close() {
+  if (ts::NO_FD != m_fd) {
+    ::close(m_fd);
+    m_fd = ts::NO_FD;
+  }
+}
+
+void
+Impl::useMD5Security(ts::ConstBuffer const& key) {
+  m_use_security_opt = true;
+  m_security_opt = SECURITY_MD5;
+  m_use_security_key = true;
+  memset(m_security_key, 0, SecurityComp::KEY_SIZE);
+  // Great. Have to cast or we get a link error.
+  memcpy(m_security_key, key._ptr, std::min(key._size, static_cast<size_t>(SecurityComp::KEY_SIZE)));
+}
+
+SecurityOption
+Impl::setSecurity(BaseMsg& msg, GroupData const& group) const {
+  SecurityOption zret = SECURITY_NONE;
+  if (group.m_use_security_opt) zret = group.m_security_opt;
+  else if (m_use_security_opt) zret =  m_security_opt;
+  if (group.m_use_security_key) msg.m_security.setKey(group.m_security_key);
+  else if (m_use_security_key) msg.m_security.setKey(m_security_key);
+  return zret;
+}
+
+bool
+Impl::validateSecurity(BaseMsg& msg, GroupData const& group) {
+  SecurityOption opt = msg.m_security.getOption();
+  if (group.m_use_security_opt) {
+    if (opt != group.m_security_opt) return false;
+  } else if (m_use_security_opt) {
+    if (opt != m_security_opt) return false;
+  }
+  if (opt == SECURITY_MD5) {
+    if (group.m_use_security_key) msg.m_security.setKey(group.m_security_key);
+    else if (m_use_security_key) msg.m_security.setKey(m_security_key);
+    return msg.validateSecurity();
+  }
+  return true;
+}
+
+ts::Rv<int>
+Impl::handleMessage() {
+  ts::Rv<int> zret;
+  ssize_t n; // recv byte count.
+  struct sockaddr src_addr; // sender's address.
+  msghdr recv_hdr;
+  iovec recv_buffer;
+  IpHeader ip_header;
+  static ssize_t const BUFFER_SIZE = 65536;
+  char buffer[BUFFER_SIZE];
+  static size_t const ANC_BUFFER_SIZE = DSTADDR_DATASIZE;
+  char anc_buffer[ANC_BUFFER_SIZE];
+
+  if (ts::NO_FD == m_fd) return -ENOTCONN;
+
+  recv_buffer.iov_base = buffer;
+  recv_buffer.iov_len = BUFFER_SIZE;
+
+  recv_hdr.msg_name = &src_addr;
+  recv_hdr.msg_namelen = sizeof(src_addr);
+  recv_hdr.msg_iov = &recv_buffer;
+  recv_hdr.msg_iovlen = 1;
+  recv_hdr.msg_control = anc_buffer;
+  recv_hdr.msg_controllen = ANC_BUFFER_SIZE;
+  
+  n = recvmsg(m_fd, &recv_hdr, MSG_TRUNC);
+  if (n > BUFFER_SIZE) return -EMSGSIZE;
+  else if (n < 0) return -errno;
+
+  // Extract the original destination address.
+  ip_header.m_src = access_field(&sockaddr_in::sin_addr, &src_addr).s_addr;
+  for ( cmsghdr* anc = CMSG_FIRSTHDR(&recv_hdr);
+        anc;
+        anc = CMSG_NXTHDR(&recv_hdr, anc)
+  ) {
+    if (anc->cmsg_level == IPPROTO_IP && anc->cmsg_type == DSTADDR_SOCKOPT) {
+      ip_header.m_dst = ((struct in_addr*)dstaddr(anc))->s_addr;
+      break;
+    }
+  }
+
+  // Check to see if there is a valid header.
+  MsgHeaderComp header;
+  MsgBuffer msg_buffer(buffer,n);
+  if (PARSE_SUCCESS == header.parse(msg_buffer)) {
+    message_type_t msg_type = header.getType();
+    ts::Buffer chunk(buffer,n);
+
+    switch (msg_type) {
+    case HERE_I_AM: this->handleHereIAm(ip_header, chunk); break;
+    case I_SEE_YOU: this->handleISeeYou(ip_header, chunk); break;
+    case REDIRECT_ASSIGN: this->handleRedirectAssign(ip_header, chunk); break;
+    case REMOVAL_QUERY: this->handleRemovalQuery(ip_header, chunk); break;
+    default: fprintf(stderr, "Unknown message type %d ignored.\n", msg_type);
+      break;
+    };
+  } else {
+    fprintf(stderr, "Malformed message ignored.\n");
+  }
+  return zret;
+}
+
+ts::Errata
+Impl::handleHereIAm(IpHeader const&, ts::Buffer const&) {
+  return log(LVL_INFO, "Unanticipated WCCP2_HERE_I_AM message ignored");
+}
+ts::Errata
+Impl::handleISeeYou(IpHeader const&, ts::Buffer const& /* data ATS_UNUSED */) {
+  return log(LVL_INFO, "Unanticipated WCCP2_I_SEE_YOU message ignored.");
+}
+ts::Errata
+Impl::handleRedirectAssign(IpHeader const&, ts::Buffer const& /* data ATS_UNUSED */) {
+  return log(LVL_INFO, "Unanticipated WCCP2_REDIRECT_ASSIGN message ignored.");
+}
+ts::Errata
+Impl::handleRemovalQuery(IpHeader const&, ts::Buffer const& /* data ATS_UNUSED */) {
+  return log(LVL_INFO, "Unanticipated WCCP2_REMOVAL_QUERY message ignored.");
+}
+// ------------------------------------------------------
+CacheImpl::GroupData::GroupData()
+  : m_assignment_pending(false) {
+}
+
+CacheImpl::GroupData&
+CacheImpl::GroupData::seedRouter(uint32_t addr) {
+  // Be nice and don't add it if it's already there.
+  if (m_seed_routers.end() == find_by_member(m_seed_routers, &SeedRouter::m_addr, addr))
+    m_seed_routers.push_back(SeedRouter(addr));
+  return *this;
+}
+
+time_t
+CacheImpl::GroupData::removeSeedRouter(uint32_t addr) {
+  time_t zret = 0;
+  std::vector<SeedRouter>::iterator begin = m_seed_routers.begin(); 
+  std::vector<SeedRouter>::iterator end = m_seed_routers.end();
+  std::vector<SeedRouter>::iterator spot = 
+    std::find_if(begin, end, ts::predicate(&SeedRouter::m_addr, addr));
+
+  if (end != spot) {
+    zret = spot->m_xmit;
+    m_seed_routers.erase(spot);
+  }
+
+  return zret;
+}
+
+CacheImpl::GroupData& CacheImpl::GroupData::setKey(char const* key) { return static_cast<self&>(this->super::setKey(key)); }
+
+CacheImpl::GroupData& CacheImpl::GroupData::setSecurity(SecurityOption style) { return static_cast<self&>(this->super::setSecurity(style)); }
+
+CacheImpl::CacheBag::iterator
+CacheImpl::GroupData::findCache(uint32_t addr) {
+  return std::find_if(
+    m_caches.begin(),
+    m_caches.end(),
+    ts::predicate(&CacheData::idAddr, addr)
+  );
+}
+
+CacheImpl::RouterBag::iterator
+CacheImpl::GroupData::findRouter(uint32_t addr) {
+  return std::find_if(
+    m_routers.begin(),
+    m_routers.end(),
+    ts::predicate(&RouterData::m_addr, addr)
+  );
+}
+
+void
+CacheImpl::GroupData::resizeCacheSources() {
+  int count = m_routers.size();
+  for ( CacheBag::iterator spot = m_caches.begin(),
+          limit = m_caches.end();
+        spot != limit;
+        ++spot
+  ) {
+    spot->m_src.resize(count);
+  }
+}
+
+inline CacheImpl::RouterData::RouterData() 
+  : m_addr(0)
+  , m_generation(0)
+  , m_rapid(0)
+  , m_assign(false)
+  , m_send_caps(false) {
+}
+
+inline CacheImpl::RouterData::RouterData(uint32_t addr)
+  : m_addr(addr)
+  , m_generation(0)
+  , m_rapid(0)
+  , m_assign(false)
+  , m_send_caps(false) {
+}
+
+time_t
+CacheImpl::RouterData::pingTime(time_t now) const {
+  time_t tx = m_xmit.m_time + (m_rapid ? TIME_UNIT/10 : TIME_UNIT);
+  return tx < now ? 0 : tx - now;
+}
+
+time_t
+CacheImpl::RouterData::waitTime(time_t now) const {
+  return m_assign ? 0 : this->pingTime(now);
+}
+
+inline uint32_t
+CacheImpl::CacheData::idAddr() const {
+  return m_id.getAddr();
+}
+
+CacheImpl::GroupData&
+CacheImpl::defineServiceGroup(
+  ServiceGroup const& svc,
+  ServiceGroup::Result* result
+) {
+  uint8_t svc_id = svc.getSvcId();
+  GroupMap::iterator spot = m_groups.find(svc_id);
+  GroupData* group; // service with target ID.
+  ServiceGroup::Result zret;
+  if (spot == m_groups.end()) { // not defined
+    group = &(m_groups[svc_id]);
+    group->m_svc = svc;
+    memset(&group->m_id, 0, sizeof(group->m_id));
+    group->m_id.initDefaultHash(m_addr);
+    zret = ServiceGroup::DEFINED;
+  } else {
+    group = &spot->second;
+    zret = group->m_svc == svc ? ServiceGroup::EXISTS : ServiceGroup::CONFLICT;
+  }
+  if (result) *result = zret;
+  return *group;
+}
+
+time_t
+CacheImpl::GroupData::waitTime(time_t now) const {
+  time_t zret = std::numeric_limits<time_t>::max();
+  // Active routers.
+  for ( RouterBag::const_iterator router = m_routers.begin(),
+          router_limit = m_routers.end() ;
+        router != router_limit && zret;
+        ++router
+  ) {
+    zret = std::min(zret, router->waitTime(now));
+    }
+  // Seed routers.
+  for ( std::vector<SeedRouter>::const_iterator
+          router = m_seed_routers.begin(),
+          router_limit = m_seed_routers.end() ;
+        router != router_limit && zret;
+        ++router
+  ) {
+    time_t tx = router->m_xmit + TIME_UNIT;
+    if (tx < now) zret = 0;
+    else zret = std::min(tx - now, zret);
+  }
+  // Assignment
+  if (m_assignment_pending) {
+    time_t tx = m_generation_time + ( 3 * TIME_UNIT / 2 );
+    if (tx < now) zret = 0;
+    else zret = std::min(tx - now, zret);
+  }
+
+  return zret;
+}
+
+bool
+CacheImpl::GroupData::cullRouters(time_t now) {
+  bool zret = false;
+  size_t idx = 0, n = m_routers.size();
+  while ( idx < n ) {
+    RouterData& router = m_routers[idx];
+    if (router.m_recv.m_time + TIME_UNIT * 3 < now) {
+      uint32_t addr = router.m_addr;
+      // Clip the router by copying down and resizing.
+      // Must do all caches as well.
+      --n; // Decrement router counter first.
+      if (idx < n) router = m_routers[n];
+      m_routers.resize(n);
+      for ( CacheBag::iterator
+              cache = m_caches.begin(),
+              cache_limit = m_caches.end();
+            cache != cache_limit;
+            ++cache
+      ) {
+        if (idx < n) cache->m_src[idx] = cache->m_src[n];
+        cache->m_src.resize(n);
+      }
+      // Put it back in the seeds.
+      this->seedRouter(addr);
+      zret = true; // Router was culled, report it to caller.
+      logf(LVL_INFO, "Router " ATS_IP_PRINTF_CODE " timed out and was removed from the active list.", ATS_IP_OCTETS(addr));
+    } else {
+      ++idx; // move to next router.
+    }
+  }
+  if (zret) this->viewChanged(now);
+  return zret;
+}
+
+CacheImpl::GroupData&
+CacheImpl::GroupData::viewChanged(time_t now) {
+  m_generation += 1;
+  m_generation_time = now;
+  m_assign_info.setActive(false); // invalidate current assignment.
+  m_assignment_pending = m_routers.size() && m_caches.size();
+  // Cancel any pending assignment transmissions.
+  ts::for_each(m_routers, ts::assign_member(&RouterData::m_assign, false));
+  logf(LVL_DEBUG, "Service group %d view change (%d)", m_svc.getSvcId(), m_generation);
+
+  return *this;
+}
+
+Cache::Service&
+Cache::Service::setKey(char const* key) {
+  m_group->setKey(key);
+  return *this;
+}
+
+Cache::Service&
+Cache::Service::setSecurity(SecurityOption opt) {
+  m_group->setSecurity(opt);
+  return *this;
+}
+
+CacheImpl&
+CacheImpl::seedRouter(uint8_t id, uint32_t addr) {
+  GroupMap::iterator spot = m_groups.find(id);
+  if (spot != m_groups.end()) spot->second.seedRouter(addr);
+  return *this;
+}
+
+bool
+CacheImpl::isConfigured() const {
+  return INADDR_ANY != m_addr && m_groups.size() > 0;
+}
+
+int
+CacheImpl::open(uint32_t addr) {
+  int zret = this->super::open(addr);
+  // If the socket was successfully opened, go through the
+  // services and update the local service descriptor.
+  if (0 <= zret) {
+    for ( GroupMap::iterator spot = m_groups.begin(), limit = m_groups.end();
+          spot != limit;
+          ++spot
+    ) {
+      spot->second.m_id.setAddr(m_addr);
+    }
+  }
+  return zret;
+}
+
+time_t
+CacheImpl::waitTime() const {
+  time_t now = time(0);
+  return ts::minima(m_groups, &GroupData::waitTime, now);
+}
+
+void
+CacheImpl::generateHereIAm(
+  HereIAmMsg& msg,
+  GroupData& group
+) {
+  msg.fill(group, group.m_id, this->setSecurity(msg, group));
+  msg.finalize();
+}
+
+void
+CacheImpl::generateHereIAm(
+  HereIAmMsg& msg,
+  GroupData& group,
+  RouterData& router
+) {
+  SecurityOption sec_opt = this->setSecurity(msg, group);
+
+  msg.fill(group, group.m_id, sec_opt);
+  if (router.m_local_cache_id.getSize())
+    msg.m_cache_id.setUnassigned(false);
+
+  msg.fill_caps(router);
+  msg.finalize();
+}
+
+void
+CacheImpl::generateRedirectAssign(
+  RedirectAssignMsg& msg,
+  GroupData& group
+) {
+  msg.fill(group, this->setSecurity(msg, group));
+  msg.finalize();
+}
+
+ts::Errata
+CacheImpl::checkRouterAssignment(
+  GroupData const& group,
+  RouterViewComp const& comp
+) const {
+  detail::Assignment const& ainfo = group.m_assign_info;
+  // If group doesn't have an active assignment, always match w/o checking.
+  ts::Errata zret; // default is success.
+
+  // if active assignment and data we can check, then check.
+  if (ainfo.isActive() && ! comp.isEmpty()) {
+    // Validate the assignment key.
+    if (ainfo.getKey().getAddr() != comp.getKeyAddr()
+      || ainfo.getKey().getChangeNumber() != comp.getKeyChangeNumber()
+    ) {
+      log(zret, LVL_INFO, "Router assignment key did not match.");;
+    } else if (ServiceGroup::HASH_ONLY == group.m_cache_assign
+    ) {
+      // Still not sure how much checking we really want or should
+      // do here. For now, we'll just leave the checks validating
+      // the assignment key.
+    } else if (ServiceGroup::MASK_ONLY == group.m_cache_assign) {
+      // The data passed back is useless. In practice the interesting
+      // data in the mask case is in the Assignment Map Component
+      // which the router seems to send when using mask assignment.
+    }
+  }
+  return zret;
+}
+
+int
+CacheImpl::housekeeping() {
+  int zret = 0;
+  sockaddr_in dst_addr;
+  sockaddr* addr_ptr = reinterpret_cast<sockaddr*>(&dst_addr);
+  time_t now = time(0);
+  static size_t const BUFFER_SIZE = 4096;
+  MsgBuffer msg_buffer;
+  char msg_data[BUFFER_SIZE];
+  msg_buffer.set(msg_data, BUFFER_SIZE);
+
+  // Set up everything except the IP address.
+  memset(&dst_addr, 0, sizeof(dst_addr));
+  dst_addr.sin_family = AF_INET;
+  dst_addr.sin_port = htons(DEFAULT_PORT);
+
+  // Walk the service groups and do their housekeeping.
+  for ( GroupMap::iterator
+          svc_spot = m_groups.begin(),
+          svc_limit = m_groups.end();
+        svc_spot != svc_limit;
+        ++svc_spot
+  ) {
+    GroupData& group = svc_spot->second;
+
+    // Check to see if it's time for an assignment.
+    if (group.m_assignment_pending
+      && group.m_generation_time + ASSIGN_WAIT <= now
+    ) {
+      // Is a valid assignment possible?
+      if (group.m_assign_info.fill(group, m_addr)) {
+        group.m_assign_info.setActive(true);
+        ts::for_each(group.m_routers,
+          ts::assign_member(&RouterData::m_assign, true)
+        );
+      }
+
+      // Always clear because no point in sending an assign we can't generate.
+      group.m_assignment_pending = false;
+    }
+
+    group.cullRouters(now); // TBD UPDATE VIEW!
+
+    // Check the active routers for scheduled packets.
+    for ( RouterBag::iterator rspot = group.m_routers.begin(),
+             rend = group.m_routers.end() ;
+           rspot != rend ;
+           ++rspot
+    ) {
+      dst_addr.sin_addr.s_addr = rspot->m_addr;
+      if (0 == rspot->pingTime(now)) {
+        HereIAmMsg here_i_am;
+        here_i_am.setBuffer(msg_buffer);
+        this->generateHereIAm(here_i_am, group, *rspot);
+        zret = sendto(m_fd, msg_data, here_i_am.getCount(), 0, addr_ptr, sizeof(dst_addr));
+        if (0 <= zret) {
+          rspot->m_xmit.set(now, group.m_generation);
+          rspot->m_send_caps = false;
+          logf(LVL_DEBUG, "Sent HERE_I_AM for service group %d to router %s%s[#%d,%lu].",
+            group.m_svc.getSvcId(),
+            ip_addr_to_str(rspot->m_addr),
+            rspot->m_rapid ? " [rapid] " : " ",
+            group.m_generation, now
+          );
+          if (rspot->m_rapid) --(rspot->m_rapid);
+        } else {
+          logf_errno(LVL_WARN, "Failed to send to router " ATS_IP_PRINTF_CODE " - ", ATS_IP_OCTETS(rspot->m_addr));
+        }
+      } else if (rspot->m_assign) {
+        RedirectAssignMsg redirect_assign;
+        redirect_assign.setBuffer(msg_buffer);
+        this->generateRedirectAssign(redirect_assign, group);
+        zret = sendto(m_fd, msg_data, redirect_assign.getCount(), 0, addr_ptr, sizeof(dst_addr));
+        if (0 <= zret) rspot->m_assign = false;
+      }
+    }
+
+    // Seed routers.
+    for ( std::vector<SeedRouter>::iterator
+            sspot = group.m_seed_routers.begin(),
+            slimit = group.m_seed_routers.end() ;
+           sspot != slimit ;
+           ++sspot
+    ) {
+      HereIAmMsg here_i_am;
+      here_i_am.setBuffer(msg_buffer);
+      // Is the router due for a ping?
+      if (sspot->m_xmit + TIME_UNIT > now) continue; // no
+      
+      this->generateHereIAm(here_i_am, group);
+
+      dst_addr.sin_addr.s_addr = sspot->m_addr;
+      zret = sendto(m_fd, msg_data, here_i_am.getCount(), 0,
+        addr_ptr, sizeof(dst_addr));
+      if (0 <= zret) {
+        logf(LVL_DEBUG, "Sent HERE_I_AM for SG %d to seed router %s [gen=#%d,t=%lu,n=%lu].",
+          group.m_svc.getSvcId(),
+          ip_addr_to_str(sspot->m_addr),
+          group.m_generation, now, here_i_am.getCount()
+        );
+        sspot->m_xmit = now;
+        sspot->m_count += 1;
+      }
+      else logf(LVL_DEBUG,
+        "Error [%d:%s] sending HERE_I_AM for SG %d to seed router %s [#%d,%lu].",
+        zret, strerror(errno),
+        group.m_svc.getSvcId(),
+        ip_addr_to_str(sspot->m_addr),
+        group.m_generation, now
+      );
+    }
+  }
+  return zret;
+}
+
+ts::Errata
+CacheImpl::handleISeeYou(IpHeader const& /* ip_hdr ATS_UNUSED */, ts::Buffer const& chunk) {
+  ts::Errata zret;
+  ISeeYouMsg msg;
+  // Set if our view of the group changes enough to bump the
+  // generation number.
+  bool view_changed = false;
+  time_t now = time(0); // don't call this over and over.
+  int parse = msg.parse(chunk);
+
+  if (PARSE_SUCCESS != parse)
+    return logf(LVL_INFO, "Ignored malformed [%d] WCCP2_I_SEE_YOU message.", parse);
+
+  ServiceGroup svc(msg.m_service);
+  GroupMap::iterator spot = m_groups.find(svc.getSvcId());
+  if (spot == m_groups.end())
+    return logf(LVL_INFO, "WCCP2_I_SEE_YOU ignored - service group %d not found.", svc.getSvcId());
+
+  GroupData& group = spot->second;
+
+  if (!this->validateSecurity(msg, group))
+    return log(LVL_INFO, "Ignored WCCP2_I_SEE_YOU with invalid security.\n");
+
+  if (svc != group.m_svc)
+    return logf(LVL_INFO, "WCCP2_I_SEE_YOU ignored - service group definition %d does not match.\n", svc.getSvcId());
+
+  if (-1 == msg.m_router_id.findFromAddr(m_addr))
+    return logf(LVL_INFO, "WCCP2_I_SEE_YOU ignored -- cache not in from list.\n");
+
+  logf(LVL_DEBUG, "Received WCCP2_I_SEE_YOU for group %d.", group.m_svc.getSvcId());
+
+  // Prefered address for router.
+  uint32_t router_addr = msg.m_router_id.idElt().getAddr();
+  // Where we sent our packet.
+  uint32_t to_addr = msg.m_router_id.getToAddr();
+  uint32_t recv_id = msg.m_router_id.idElt().getRecvId();
+  RouterBag::iterator ar_spot; // active router
+  int router_idx; // index in active routers.
+  std::vector< SeedRouter >::iterator seed_spot;
+
+  CapComp& caps = msg.m_capabilities;
+  // Handle the router that sent us this.
+  ar_spot = find_by_member(group.m_routers, &RouterData::m_addr, router_addr);
+  if (ar_spot == group.m_routers.end()) {
+    // This is a new router that's replied to one of our pings.
+    // Need to do various setup and reply things to get the connection
+    // established.
+
+    // Remove this from the seed routers and copy the last packet
+    // sent time.
+    RouterData r(router_addr); // accumulate state before we commit it.
+    r.m_xmit.m_time = group.removeSeedRouter(to_addr);
+
+    // Validate capabilities.
+    ServiceGroup::PacketStyle ps;
+    ServiceGroup::CacheAssignmentStyle as;
+    char const* caps_tag = caps.isEmpty() ? "default" : "router";
+
+    // No caps -> use GRE forwarding.
+    ps = caps.isEmpty() ? ServiceGroup::GRE : caps.getPacketForwardStyle();
+    if (ServiceGroup::GRE & ps & group.m_packet_forward)
+      r.m_packet_forward = ServiceGroup::GRE;
+    else if (ServiceGroup::L2 & ps & group.m_packet_forward)
+      r.m_packet_forward = ServiceGroup::L2;
+    else
+      logf(zret, LVL_WARN, "Packet forwarding (config=%d, %s=%d) did not match.", group.m_packet_forward, caps_tag, ps);
+
+    // No caps -> use GRE return.
+    ps = caps.isEmpty() ? ServiceGroup::GRE : caps.getPacketReturnStyle();
+    if (ServiceGroup::GRE & ps & group.m_packet_return)
+      r.m_packet_return = ServiceGroup::GRE;
+    else if (ServiceGroup::L2 & ps & group.m_packet_return)
+      r.m_packet_return = ServiceGroup::L2;
+    else
+      logf(zret, LVL_WARN, "Packet return (local=%d, %s=%d) did not match.", group.m_packet_return, caps_tag, ps);
+
+    // No caps -> use HASH assignment.
+    as = caps.isEmpty() ? ServiceGroup::HASH_ONLY : caps.getCacheAssignmentStyle();
+    if (ServiceGroup::HASH_ONLY & as & group.m_cache_assign)
+      r.m_cache_assign = ServiceGroup::HASH_ONLY;
+    else if (ServiceGroup::MASK_ONLY & as & group.m_cache_assign) {
+      r.m_cache_assign = ServiceGroup::MASK_ONLY;
+      group.m_id.initDefaultMask(m_addr); // switch to MASK style ID.
+    } else
+      logf(zret, LVL_WARN, "Cache assignment (local=%d, %s=%d) did not match.", group.m_cache_assign, caps_tag, as);
+
+    if (!zret) {
+      // cancel out, can't use this packet because we reject the router.
+      return logf(zret, LVL_WARN, "Router %s rejected because of capabilities mismatch.", ip_addr_to_str(router_addr));
+    }
+
+    group.m_routers.push_back(r);
+    ar_spot = group.m_routers.end() - 1;
+    view_changed = true;
+    logf(LVL_INFO, "Added source router %s to view %d", ip_addr_to_str(router_addr), group.m_svc.getSvcId());
+  } else {
+    // Existing router. Update the receive ID in the assignment object.
+    group.m_assign_info.updateRouterId(router_addr, recv_id, msg.m_router_view.getChangeNumber());
+    // Check the assignment to see if we need to send it again.
+    ts::Errata status = this->checkRouterAssignment(group, msg.m_router_view);
+    if (status.size()) {
+      ar_spot->m_assign = true; // schedule an assignment message.
+      logf(status, LVL_INFO, "Router assignment reported from "
+        ATS_IP_PRINTF_CODE
+        " did not match local assignment. Resending assignment.\n ",
+        ATS_IP_OCTETS(router_addr)
+      );
+    }
+  }
+  time_t then = ar_spot->m_recv.m_time; // used for comparisons later.
+  ar_spot->m_recv.set(now, recv_id);
+  ar_spot->m_generation = msg.m_router_view.getChangeNumber();
+  router_idx = ar_spot - group.m_routers.begin();
+  // Reply with our own capability options iff the router sent one to us.
+  // This is a violation of the spec but it's what we have to do in practice
+  // for mask assignment.
+  ar_spot->m_send_caps = ! caps.isEmpty();
+
+  // For all the other listed routers, seed them if they're not
+  // already active.
+  uint32_t nr = msg.m_router_view.getRouterCount();
+  for ( uint32_t idx = 0; idx < nr ; ++idx ) {
+    uint32_t addr = msg.m_router_view.getRouterAddr(idx);
+    if (group.m_routers.end() == find_by_member(group.m_routers, &RouterData::m_addr, addr))
+      group.seedRouter(addr);
+  }
+
+  // Update/Install the caches.
+  // TBD: Must bump view if a router fails to report a cache it reported
+  // in its last packet.
+  group.resizeCacheSources();
+  uint32_t nc = msg.m_router_view.getCacheCount();
+  for ( uint32_t idx = 0 ; idx < nc ; ++idx ) {
+    CacheIdBox& cache = msg.m_router_view.cacheId(idx);
+    CacheBag::iterator ac_spot = group.findCache(cache.getAddr());
+    if (group.m_caches.end() == ac_spot) {
+      group.m_caches.push_back(CacheData());
+      ac_spot = group.m_caches.end() - 1;
+      ac_spot->m_src.resize(group.m_routers.size());
+      logf(LVL_INFO, "Added cache %s to view %d", ip_addr_to_str(cache.getAddr()), group.m_svc.getSvcId());
+      view_changed = true;
+    } else {
+      // Check if the cache wasn't reported last time but was reported
+      // this time. In that case we need to bump the view to trigger
+      // assignment generation.
+      if (ac_spot->m_src[router_idx].m_time != then) view_changed = true;
+    }
+    ac_spot->m_id.fill(cache);
+    // If cache is this cache, update data in router record.
+    if (cache.getAddr() == m_addr) ar_spot->m_local_cache_id.fill(cache);
+    ac_spot->m_src[router_idx].set(now, recv_id);
+  }
+
+  if (view_changed) group.viewChanged(now);
+
+  return zret;
+}
+
+ts::Errata
+CacheImpl::handleRemovalQuery(IpHeader const& /* ip_hdr ATS_UNUSED */, ts::Buffer const& chunk) {
+  ts::Errata zret;
+  RemovalQueryMsg msg;
+  time_t now = time(0);
+  int parse = msg.parse(chunk);
+
+  if (PARSE_SUCCESS != parse)
+    return log(LVL_INFO, "Ignored malformed WCCP2_REMOVAL_QUERY message.");
+
+  ServiceGroup svc(msg.m_service);
+  GroupMap::iterator spot = m_groups.find(svc.getSvcId());
+  if (spot == m_groups.end())
+    return logf(LVL_INFO, "WCCP2_REMOVAL_QUERY ignored - service group %d not found.", svc.getSvcId());
+
+  GroupData& group = spot->second;
+
+  if (!this->validateSecurity(msg, group))
+    return log(LVL_INFO, "Ignored WCCP2_REMOVAL_QUERY with invalid security.\n");
+
+  if (svc != group.m_svc)
+    return logf(LVL_INFO, "WCCP2_REMOVAL_QUERY ignored - service group definition %d does not match.\n", svc.getSvcId());
+
+  uint32_t target_addr = msg.m_query.getCacheAddr(); // intended cache
+  if (m_addr == target_addr) {
+    uint32_t raddr = msg.m_query.getRouterAddr();
+    RouterBag::iterator router = group.findRouter(raddr);
+    if (group.m_routers.end() != router) {
+      router->m_rapid = true; // do rapid responses.
+      router->m_recv.set(now, msg.m_query.getRecvId());
+      logf(LVL_INFO, "WCCP2_REMOVAL_QUERY from router "
+        ATS_IP_PRINTF_CODE ".\n",
+        ATS_IP_OCTETS(raddr)
+      );
+    } else {
+      logf(LVL_INFO, "WCCP2_REMOVAL_QUERY from unknown router "
+        ATS_IP_PRINTF_CODE ".\n",
+        ATS_IP_OCTETS(raddr)
+      );
+    }
+  } else {
+    // Not an error in the multi-cast case, so just log under debug.
+    logf(LVL_DEBUG, "WCCP2_REMOVAL_QUERY ignored -- target cache address "
+      ATS_IP_PRINTF_CODE
+      " did not match local address "
+      ATS_IP_PRINTF_CODE
+      "\n.",
+      ATS_IP_OCTETS(target_addr), ATS_IP_OCTETS(m_addr)
+    );
+  }
+
+  logf(LVL_DEBUG, "Received WCCP2_REMOVAL_QUERY for group %d.", group.m_svc.getSvcId());
+
+  return zret;
+}
+// ------------------------------------------------------
+inline uint32_t
+RouterImpl::CacheData::idAddr() const {
+  return m_id.getAddr();
+}
+
+RouterImpl::GroupData::GroupData() { }
+
+RouterImpl::CacheBag::iterator
+RouterImpl::GroupData::findCache(uint32_t addr) {
+  return std::find_if(
+    m_caches.begin(),
+    m_caches.end(),
+    ts::predicate(&CacheData::idAddr, addr)
+  );
+}
+
+RouterImpl::GroupData&
+RouterImpl::defineServiceGroup(
+  ServiceGroup const& svc,
+  ServiceGroup::Result* result
+) {
+  uint8_t svc_id = svc.getSvcId();
+  GroupMap::iterator spot = m_groups.find(svc_id);
+  GroupData* group; // service with target ID.
+  ServiceGroup::Result zret;
+  if (spot == m_groups.end()) { // not defined
+    group = &(m_groups[svc_id]);
+    group->m_svc = svc;
+    zret = ServiceGroup::DEFINED;
+  } else {
+    group = &spot->second;
+    zret = group->m_svc == svc ? ServiceGroup::EXISTS : ServiceGroup::CONFLICT;
+  }
+  if (result) *result = zret;
+  return *group;
+}
+
+void
+RouterImpl::GroupData::resizeRouterSources() {
+  ts::for_each(m_routers, &RouterData::resize, m_caches.size());
+}
+
+ts::Errata
+RouterImpl::handleHereIAm(IpHeader const& ip_hdr, ts::Buffer const& chunk) {
+  ts::Errata zret;
+  HereIAmMsg msg;
+  static GroupData nil_group; // scratch until I clean up the security.
+  // Set if our view of the group changes enough to bump the
+  // generation number.
+  bool view_changed = false;
+  int i; // scratch index var.
+  time_t now = time(0); // don't call this over and over.
+  int parse = msg.parse(chunk);
+
+  if (PARSE_SUCCESS != parse) 
+    return log(LVL_INFO, "Ignored malformed WCCP2_HERE_I_AM message.\n");
+
+  if (!this->validateSecurity(msg, nil_group))
+    return log(LVL_INFO, "Ignored WCCP2_HERE_I_AM with invalid security.\n");
+
+  ServiceGroup svc(msg.m_service);
+  ServiceGroup::Result r;
+  GroupData& group = this->defineServiceGroup(svc, &r);
+  if (ServiceGroup::CONFLICT == r)
+    return logf(LVL_INFO, "WCCP2_HERE_I_AM ignored - service group %d definition does not match.\n", svc.getSvcId());
+  else if (ServiceGroup::DEFINED == r)
+    return logf(LVL_INFO, "Service group %d defined by WCCP2_HERE_I_AM.\n", svc.getSvcId());
+
+  // Check if this cache is already known.
+  uint32_t cache_addr = msg.m_cache_id.getAddr();
+  int cache_idx;
+  uint32_t cache_gen;
+  CacheBag::iterator cache = group.findCache(cache_addr);
+  if (cache == group.m_caches.end()) { // not known
+    group.m_caches.push_back(CacheData());
+    // Vector modified, need clean end value.
+    cache = group.m_caches.end() - 1;
+    cache->m_recv_count = 0;
+    group.resizeRouterSources();
+    view_changed = true;
+  } else {
+    // Did the cache mention us specifically?
+    // If so, make sure the sequence # is correct.
+    RouterIdElt* me = msg.m_cache_view.findf_router_elt(m_addr);
+    if (me && me->getRecvId() != cache->m_recv_count)
+      return logf(LVL_INFO, "Discarded out of date (recv=%d, local=%ld) WCCP2_HERE_I_AM.\n", me->getRecvId(), cache->m_recv_count);
+  }
+
+  cache_gen = msg.m_cache_view.getChangeNumber();
+
+  cache_idx = cache - group.m_caches.begin();
+  cache->m_id.fill(msg.m_cache_id.cacheId());
+  cache->m_recv.set(now, cache_gen);
+  cache->m_pending = true;
+  cache->m_to_addr = ip_hdr.m_dst;
+
+  // Add any new routers
+  i = msg.m_cache_view.getRouterCount();
+  while(i-- > 0) {
+    uint32_t addr = msg.m_cache_view.routerElt(i).getAddr();
+    RouterBag::iterator spot = find_by_member(group.m_routers, &RouterData::m_addr, addr);
+    if (spot == group.m_routers.end()) {
+      group.m_routers.push_back(RouterData());
+      // Can't count on previous end value, modified container.
+      spot = group.m_routers.end() - 1;
+      spot->m_addr = addr;
+      spot->m_src.resize(group.m_caches.size());
+      view_changed = true;
+    }
+    spot->m_src[cache_idx].set(now, cache_gen);
+  }
+
+  if (view_changed) ++(group.m_generation);
+  return zret;
+}
+
+void
+RouterImpl::generateISeeYou(
+  ISeeYouMsg& msg,
+  GroupData& group,
+  CacheData& cache
+) {
+  int i;
+  size_t n_routers = group.m_routers.size();
+  size_t n_caches = group.m_caches.size();
+
+  // Not handling multi-cast so target caches is hardwired to 1.
+  msg.fill(group, this->setSecurity(msg, group), group.m_assign_info, 1, n_routers, n_caches);
+
+  // Fill in ID data not done by fill.
+  msg.m_router_id
+    .setIdElt(m_addr, cache.m_recv_count + 1)
+    .setToAddr(cache.m_to_addr)
+    .setFromAddr(0, cache.idAddr());
+    ;
+
+  // Fill view routers.
+  i = 0;
+  for ( RouterBag::iterator router = group.m_routers.begin(),
+          router_limit = group.m_routers.end();
+        router != router_limit;
+        ++router, ++i
+  ) {
+    msg.m_router_view.setRouterAddr(i, router->m_addr);
+  }
+
+  // Fill view caches.
+  i = 0;
+  for ( CacheBag::iterator spot = group.m_caches.begin(),
+          limit = group.m_caches.end();
+        spot != limit;
+        ++spot, ++i
+  ) {
+    // TBD: This needs to track memory because cache ID elements
+    // turn out to be variable sized.
+//    msg.m_router_view.cacheId(i) = spot->m_id;
+  }
+
+  msg.finalize();
+}
+
+int
+RouterImpl::xmitISeeYou() {
+  int zret = 0;
+  ISeeYouMsg msg;
+  MsgBuffer buffer;
+  sockaddr_in dst_addr;
+  time_t now = time(0);
+  static size_t const BUFFER_SIZE = 4096;
+  char* data = static_cast<char*>(alloca(BUFFER_SIZE));
+
+  memset(&dst_addr, 0, sizeof(dst_addr));
+  dst_addr.sin_family = AF_INET;
+  dst_addr.sin_port = htons(DEFAULT_PORT);
+  buffer.set(data, BUFFER_SIZE);
+
+  // Send out messages for each service group.
+  for ( GroupMap::iterator svc_spot = m_groups.begin(),
+          svc_limit = m_groups.end() ;
+        svc_spot != svc_limit ;
+        ++svc_spot
+  ) {
+    GroupData& group = svc_spot->second;
+
+    // Check each active cache in the group.
+    for ( CacheBag::iterator cache = group.m_caches.begin(),
+             cache_limit = group.m_caches.end() ;
+           cache != cache_limit ;
+           ++cache
+    ) {
+      if (!cache->m_pending) continue;
+
+      msg.setBuffer(buffer);
+      this->generateISeeYou(msg, group, *cache);
+      dst_addr.sin_addr.s_addr = cache->m_id.getAddr();
+      zret = sendto(m_fd, data, msg.getCount(), 0,
+        reinterpret_cast<sockaddr*>(&dst_addr), sizeof(dst_addr));
+      if (0 <= zret) {
+        cache->m_xmit.set(now, group.m_generation);
+        cache->m_pending = false;
+        cache->m_recv_count = msg.m_router_id.getRecvId();
+        logf(LVL_DEBUG, "I_SEE_YOU -> %s\n", ip_addr_to_str(cache->m_id.getAddr()));
+      }
+      else {
+        log_errno(LVL_WARN, "Router transmit failed -");
+        return zret;
+      }
+    }
+  }
+  return zret;
+}
+
+int
+RouterImpl::housekeeping() {
+  return this->xmitISeeYou();
+}
+
+bool
+RouterImpl::isConfigured() const {
+  return false;
+}
+// ------------------------------------------------------
+EndPoint::EndPoint() {
+}
+
+EndPoint::~EndPoint() {
+}
+
+EndPoint::EndPoint(self const& that)
+  : m_ptr(that.m_ptr) {
+}
+
+inline EndPoint::ImplType*
+EndPoint::instance() {
+  return m_ptr ? m_ptr.get() : this->make();
+}
+
+EndPoint& EndPoint::setAddr(uint32_t addr) {
+  this->instance()->m_addr = addr;
+  logf(LVL_DEBUG, "Endpoint address set to %s\n", ip_addr_to_str(addr));
+  return *this;
+}
+
+bool
+EndPoint::isConfigured() const {
+  return m_ptr && m_ptr->isConfigured();
+}
+
+int
+EndPoint::open(uint32_t addr) {
+  return this->instance()->open(addr);
+}
+
+void
+EndPoint::useMD5Security(ts::ConstBuffer const& key) {
+  this->instance()->useMD5Security(key);
+}
+
+int EndPoint::getSocket() const {
+  return m_ptr ? m_ptr->m_fd : ts::NO_FD;
+}
+
+int
+EndPoint::housekeeping() {
+  // Don't force an instance because if there isn't one,
+  // there's no socket either.
+  return m_ptr && ts::NO_FD != m_ptr->m_fd ? m_ptr->housekeeping() : -ENOTCONN;
+}
+
+ts::Rv<int>
+EndPoint::handleMessage() {
+  return m_ptr
+    ? m_ptr->handleMessage()
+    : ts::Rv<int>(-ENOTCONN, log(LVL_INFO, "EndPoint::handleMessage called on unconnected instance"));
+}
+// ------------------------------------------------------
+Cache::Cache() {
+}
+
+Cache::~Cache() {
+}
+
+EndPoint::ImplType*
+Cache::make() {
+  m_ptr.assign(new ImplType);
+  return m_ptr.get();
+}
+
+inline Cache::ImplType*
+Cache::instance() {
+  return static_cast<ImplType*>(this->super::instance());
+}
+
+inline Cache::ImplType* Cache::impl() {
+  return static_cast<ImplType*>(m_ptr.get());
+}
+
+inline Cache::ImplType const* Cache::impl() const {
+  return static_cast<ImplType*>(m_ptr.get());
+}
+
+Cache::Service
+Cache::defineServiceGroup(
+  ServiceGroup const& svc,
+  ServiceGroup::Result* result
+) {
+  return Service(*this, this->instance()->defineServiceGroup(svc, result));
+}
+
+time_t Cache::waitTime() const {
+  return m_ptr ? this->impl()->waitTime() : std::numeric_limits<time_t>::max();
+}
+
+Cache&
+Cache::addSeedRouter(uint8_t id, uint32_t addr) {
+  this->instance()->seedRouter(id, addr);
+  return *this;
+}
+
+ts::Errata
+Cache::loadServicesFromFile(char const* path) {
+  return this->instance()->loadServicesFromFile(path);
+}
+// ------------------------------------------------------
+Router::Router() {
+}
+
+Router::~Router() {
+}
+
+EndPoint::ImplType*
+Router::make() {
+  m_ptr.assign(new ImplType);
+  return m_ptr.get();
+}
+
+inline Router::ImplType*
+Router::instance() {
+  return static_cast<ImplType*>(this->super::instance());
+}
+
+inline Router::ImplType*
+Router::impl() {
+  return static_cast<ImplType*>(m_ptr.get());
+}
+// ------------------------------------------------------
+} // namespace wccp
diff --git a/lib/wccp/WccpLocal.h b/lib/wccp/WccpLocal.h
new file mode 100644
index 00000000..3430ccfa
--- /dev/null
+++ b/lib/wccp/WccpLocal.h
@@ -0,0 +1,3555 @@
+# if !defined(TS_WCCP_LOCAL_HEADER)
+# define TS_WCCP_LOCAL_HEADER
+
+/** @file
+    WCCP (v2) support for Apache Traffic Server.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "Wccp.h"
+# include "WccpUtil.h"
+# include <ts/TsBuffer.h>
+// Needed for template use of byte ordering functions.
+# include <netinet/in.h>
+# include <memory.h>
+# include <map>
+
+namespace wccp {
+
+// Forward declares
+namespace detail {
+  class Assignment;
+  namespace cache {
+    struct RouterData;
+  }
+}
+
+/// Default port used by the protocol.
+static unsigned int const DEFAULT_PORT = 2048;
+/// Number of buckets in WCCP hash allocation.
+static unsigned int const N_BUCKETS = 256;
+/// Unassigned bucket value (defined by protocol).
+static uint8_t const UNASSIGNED_BUCKET = 0xFF;
+/// Size of group password in octets.
+static unsigned int const GROUP_PASSWORD_SIZE = 8;
+/// Maximum # of caches
+static uint32_t const MAX_CACHES = 32;
+/// Maximum # of routers
+static uint32_t const MAX_ROUTERS = 32;
+
+/// Our version of the protocol.
+static unsigned int const VERSION = 0x200;
+
+/// @name Parse results.
+/// @note Internal values are positive. System errors are reported as
+/// the negative of errno.
+//@{
+/// Successful parse (message is well formatted)
+static int const PARSE_SUCCESS = 0;
+/// Component is the wrong type but looks like a valid type.
+static int const PARSE_COMP_OTHER_TYPE = 1;
+/// Component has a bogus type (cannot be valid).
+static int const PARSE_COMP_TYPE_INVALID = 2;
+/// Length in message is larger than actual message data.
+static int const PARSE_MSG_TOO_BIG = 3;
+/// Message header has invalid data.
+static int const PARSE_MSG_INVALID = 5;
+/// Component is malformed.
+static int const PARSE_COMP_INVALID = 4;
+/// Message is not the expected type.
+static int const PARSE_MSG_WRONG_TYPE = 6;
+/// Variable data for component can't fit in remaining data.
+static int const PARSE_COMP_TOO_BIG = 7;
+/// Fixed data for component can't fit in remaining data.
+static int const PARSE_BUFFER_TOO_SMALL = 8;
+/// Stored component size doesn't agree with locally computed size.
+static int const PARSE_COMP_WRONG_SIZE = 9;
+/// More data in message than can be accounted for.
+static int const PARSE_DATA_OVERRUN = 10;
+//@}
+
+/** Buffer for serialized data.
+    Takes the basic ATS buffer and adds a count field to track
+    the amount of buffer in use.
+*/
+class MsgBuffer : protected ts::Buffer {
+public:
+  typedef MsgBuffer self; ///< Self reference type.
+  typedef ts::Buffer super; ///< Parent type.
+
+  MsgBuffer(); ///< Default construct empty buffer.
+  /// Construct from ATS buffer.
+  MsgBuffer(
+    super const& that ///< Instance to copy.
+  );
+  /// Construct from pointer and size.
+  MsgBuffer(
+    void* ptr, ///< Pointer to buffer.
+    size_t n ///< Size of buffer.
+  );
+  /// Assign a buffer.
+  MsgBuffer& set(
+    void* ptr, ///< Pointer to buffer.
+    size_t n ///< Size of buffer.
+  );
+
+  /// Get the buffer size.
+  size_t getSize() const;
+  /// Get the content size (use count).
+  size_t getCount() const;
+  /// Get address of first unused byte.
+  char* getTail();
+  /// Get address of first byte.
+  char* getBase();
+  /// Get address of first byte.
+  char const* getBase() const;
+  /// Get the remaining space in the buffer.
+  size_t getSpace() const;
+  /// Mark additional space in use.
+  self& use(
+    size_t n ///< Additional space to mark in use.
+  );
+  /// Mark all space as unused.
+  self& reset();
+
+  /// Reset and zero the buffer.
+  self& zero();
+
+  size_t _count; ///< Number of bytes in use.
+};
+
+/// Sect 4.4: Cache assignment method.
+enum CacheAssignmentType {
+  ASSIGNMENT_BY_HASH = 0,
+  ASSIGNMENT_BY_MASK = 1
+};
+
+/// Top level message types.
+enum message_type_t {
+  INVALID_MSG_TYPE = 0,
+  HERE_I_AM =  10,
+  I_SEE_YOU =  11,
+  REDIRECT_ASSIGN = 12,
+  REMOVAL_QUERY = 13
+};
+
+/// Message component type.
+/// See Sect 5.1 - 5.4
+enum CompType {
+  SECURITY_INFO = 0,
+  SERVICE_INFO = 1,
+  ROUTER_ID_INFO = 2,
+  CACHE_ID_INFO = 3,
+  RTR_VIEW_INFO = 4,
+  CACHE_VIEW_INFO = 5,
+  REDIRECT_ASSIGNMENT = 6,
+  QUERY_INFO = 7,
+  CAPABILITY_INFO = 8,
+  ALT_ASSIGNMENT = 13,
+  ASSIGN_MAP = 14,
+  COMMAND_EXTENSION = 15,
+  COMP_TYPE_MIN = SECURITY_INFO,
+  COMP_TYPE_MAX = COMMAND_EXTENSION
+};
+
+/// Router Identity.
+/// Data is stored in host order. This structure is not used publicly.
+struct RouterId {
+  typedef RouterId self; ///< Self reference type.
+
+  RouterId(); ///< Default constructor.
+  /// Construct from address and sequence number.
+  RouterId(
+    uint32_t addr, ///< Router address.
+    uint32_t recv_id ///< Receive ID (sequence number).
+  );
+
+  uint32_t m_addr; ///< Identifying router IP address.
+  uint32_t m_recv_id; ///< Recieve ID (sequence #).
+};
+
+/** Sect 5.7.1: Router Identity Element.
+
+    This maps directly on to message content.
+
+    @internal A @c RouterId with accessors to guarantee correct memory
+    layout.
+*/
+class RouterIdElt : protected RouterId {
+protected:
+  typedef RouterId super; ///< Parent type.
+public:
+  typedef RouterIdElt self; ///< Self reference type.
+
+  /// Default constructor, members zero initialized.
+  RouterIdElt();
+  /// Construct from address and sequence number.
+  RouterIdElt(
+    uint32_t addr, ///< Router address.
+    uint32_t recv_id ///< Receive ID (sequence number).
+  );
+
+  /// @name Accessors
+  //@{
+  uint32_t getAddr() const; ///< Get the address field.
+  self& setAddr(uint32_t addr); ///< Set the address field to @a addr.
+  uint32_t getRecvId() const; ///< Get the receive ID field.
+  self& setRecvId(uint32_t id); ///< Set the receive ID field to @a id.
+  //@}
+
+  /// Assign from non-serialized variant.
+  self& operator = (super const& that);
+};
+
+/// Sect 5.7.3: Assignment Key Element
+/// @note This maps directly on to message content.
+/// @internal: At top level because it is used in more than one component.
+class AssignmentKeyElt {
+public:
+  typedef AssignmentKeyElt self; ///< Self reference type.
+
+  AssignmentKeyElt(); ///< Default constructor. No member initialization.
+  /// Construct from address and sequence number.
+  AssignmentKeyElt(
+    uint32_t addr, ///< Key address.
+    uint32_t generation ///< Change number.
+  );
+
+  /// @name Accessors
+  //@{
+  uint32_t getAddr() const; ///< Get the address field.
+  self& setAddr(uint32_t addr); ///< Set the address field to @a addr.
+  uint32_t getChangeNumber() const; ///< Get change number field.
+  self& setChangeNumber(uint32_t n); ///< Set change number field to @a n.
+  //@}
+protected:
+  uint32_t m_addr; ///< Identifying router IP address.
+  uint32_t m_change_number; ///< Change number (sequence #).
+};
+
+/// Sect 5.7.4: Router Assignment Element
+/// @note This maps directly on to message content.
+/// @internal: At top level because it is used in more than one component.
+class RouterAssignElt : public RouterIdElt {
+public:
+  typedef RouterAssignElt self; ///< Self reference type.
+  typedef RouterIdElt super; ///< Parent type.
+
+  /// Default constructor, members zero initialized.
+  RouterAssignElt();
+  /// Construct from address and sequence number.
+  RouterAssignElt(
+    uint32_t addr, ///< Router address.
+    uint32_t recv_id, ///< Receive ID (sequence number).
+    uint32_t change_number ///< Change number (sequence number).
+  );
+
+  /// @name Accessors
+  //@{
+  uint32_t getChangeNumber() const; ///< Get change number field.
+  self& setChangeNumber(uint32_t n); ///< Set change number field to @a n.
+  //@}
+protected:
+  uint32_t m_change_number; ///< Change number (sequence #).
+};
+
+/** List of @c RouterAssignElt
+    @note Not explicitly part of the spec, but it shows up in multiple
+    places.
+ */
+class RouterAssignListElt {
+public:
+  typedef RouterAssignListElt self; ///< Self reference type.
+
+  /// Default constructor - @b no initialization.
+  RouterAssignListElt();
+  /// Construct with @n elements.
+  RouterAssignListElt(
+    int n ///< Number of elements.
+  );
+
+  /// @name Accessors
+  //@{
+  /// Access element.
+  RouterAssignElt& elt(
+    int idx ///< Index of target element.
+  );
+  /// Access const element.
+  RouterAssignElt const& elt(
+    int idx ///< Index of target element.
+  ) const;
+  /// Get the number of elements.
+  uint32_t getCount() const;
+  //@}
+
+  /// Update ID for a router.
+  self& updateRouterId(
+    uint32_t addr, ///< Identifying IP address of router.
+    uint32_t rcvid, ///< New receive ID value.
+    uint32_t cno ///< New change number.
+  );
+
+  /// Get size in bytes of this structure.
+  size_t getSize() const;
+  /// Get the size of the variable part only.
+  /// This is useful for classes that put this element in their
+  /// stub structure.
+  size_t getVarSize() const;
+  /// Calculate size in bytes for @a n elements.
+  static size_t calcSize(
+    int n ///< Number of elements.
+  );
+  /// Calculate size of variable data in bytes for @a n elements.
+  static size_t calcVarSize(
+    int n ///< Number of elements.
+  );
+protected:
+  uint32_t m_count; ///< # of elements (network order).
+};
+
+/// Sect 5.7.5: Capability Element
+/// @note This maps directly on to message content.
+class CapabilityElt {
+public:
+  typedef CapabilityElt self; ///< Self reference type.
+
+  /// Capability types.
+  enum Type {
+    PACKET_FORWARD_METHOD = 1, ///< Packet forwarding methods.
+    CACHE_ASSIGNMENT_METHOD = 2, ///< Cache assignment methods.
+    PACKET_RETURN_METHOD = 3 ///< Packet return methods.
+  };
+
+  CapabilityElt(); ///< Default constructor.
+  /// Construct from address and sequence number.
+  CapabilityElt(
+    Type type, ///< Capability type.
+    uint32_t data ///< Capability data.
+  );
+
+  /// @name Accessors
+  //@{
+  Type getCapType() const; ///< Get the capability type.
+  /// Set capability type.
+  self& setCapType(
+    Type cap ///< Capability type.
+  );
+  uint32_t getCapData() const; ///< Get capability data.
+  /// Set capability data.
+  self& setCapData(
+    uint32_t data ///< Data value.
+  );
+  //@}
+protected:
+  uint16_t m_cap_type; ///< Capability type.
+  uint16_t m_cap_length; ///< Length of capability data.
+  uint32_t m_cap_data; ///< Capability data.
+};
+
+/// Sect 5.7.7: Mask element
+class MaskElt {
+public:
+  typedef MaskElt self; ///< Self reference type.
+
+  /// Default constructor - @b no initialization.
+  MaskElt();
+  /// Construct with specific values.
+  MaskElt(
+    uint32_t srcAddr, ///< Mask for source address.
+    uint32_t dstAddr, ///< Mask for destination address.
+    uint16_t srcPort, ///< Mask for source port.
+    uint16_t dstPort  ///< Mask for destination port.
+  );
+
+  /// @name Accessors
+  //@{
+  /// Get source address mask field.
+  uint32_t getSrcAddr() const;
+  /// Set source address mask field to @a mask.
+  self& setSrcAddr(uint32_t mask);
+  /// Get destination address field.
+  uint32_t getDstAddr() const;
+  /// Set destination address field to @a mask.
+  self& setDstAddr(uint32_t mask);
+  /// Get source port mask field.
+  uint16_t getSrcPort() const;
+  /// Set source port mask field to @a mask.
+  self& setSrcPort(uint16_t mask);
+  /// Get destination port mask field.
+  uint16_t getDstPort() const;
+  /// Set destination port mask field to @a mask.
+  self& setDstPort(uint16_t mask);
+  //@}
+
+protected:
+  uint32_t m_src_addr; ///< Source address mask.
+  uint32_t m_dst_addr; ///< Destination address mask.
+  uint16_t m_src_port; ///< Source port mask.
+  uint16_t m_dst_port; ///< Destination port mask.
+};
+
+/// Sect 5.7.8: Value element.
+class ValueElt {
+public:
+  typedef ValueElt self; ///< Self reference type.
+
+  /// Default constructor - @b no initialization.
+  ValueElt();
+  /// Construct a specific value.
+  ValueElt(
+    uint32_t cacheAddr, ///< Address of cache for this value.
+    uint32_t srcAddr, ///< Value for source address.
+    uint32_t dstAddr, ///< Value for destination address.
+    uint16_t srcPort, ///< Value for source port.
+    uint16_t dstPort  ///< Value for destination port.
+  );
+
+  /// @name Accessors
+  //@{
+  uint32_t getf_src_addr() const; ///< Get source address field.
+  self& setf_src_addr(uint32_t addr); ///< Set source address field to @a addr.
+  uint32_t getDstAddr() const; ///< Get destination address field.
+  self& setf_dst_addr(uint32_t addr); ///< Set destination address field to @a addr.
+  uint16_t getf_src_port() const; ///< Get source port field.
+  self& setf_src_port(uint16_t port); ///< Set source port field to @a port.
+  uint16_t getDstPort() const; ///< Get destination port field.
+  self& setf_dst_port(uint16_t port); ///< Set destination port field to @a port.
+  uint32_t getCacheAddr() const; ///< Get cache address field.
+  self& setCacheAddr(uint32_t addr); ///< Set cache address field to @a addr
+  //@}
+
+protected:
+  uint32_t m_src_addr; ///< Source address.
+  uint32_t m_dst_addr; ///< Destination address.
+  uint16_t m_src_port; ///< Source port.
+  uint16_t m_dst_port; ///< Destination port.
+  uint32_t m_cache_addr; ///< Cache address.
+};
+
+/** Sect 5.7.6: Mask/Value Set Element
+    This is a variable sized element.
+ */
+class MaskValueSetElt {
+public:
+  typedef MaskValueSetElt self; ///< Self reference type.
+
+  MaskValueSetElt(); ///< Default constructor.
+  /// Construct from address and sequence number.
+  MaskValueSetElt(
+    uint32_t n ///< Value count.
+  );
+
+  /// @name Accessors
+  //@{
+  /// Directly access contained mask element.
+  MaskElt& maskElt();
+
+  /// Get source address mask field.
+  uint32_t getSrcAddrMask() const;
+  /// Set source address mask field to @a mask.
+  self& setSrcAddrMask(uint32_t mask);
+  /// Get destination address field.
+  uint32_t getDstAddrMask() const;
+  /// Set destination address field to @a mask.
+  self& setDstAddrMask(uint32_t mask);
+  /// Get source port mask field.
+  uint16_t getSrcPortMask() const;
+  /// Set source port mask field to @a mask.
+  self& setSrcPortMask(uint16_t mask);
+  /// Get destination port mask field.
+  uint16_t getDstPortMask() const;
+  /// Set destination port mask field to @a mask.
+  self& setDstPortMask(uint16_t mask);
+
+  /// Append a value to this set.
+  self& addValue(
+    uint32_t cacheAddr, ///< Address of cache for this value.
+    uint32_t srcAddr, ///< Value for source address.
+    uint32_t dstAddr, ///< Value for destination address.
+    uint16_t srcPort, ///< Value for source port.
+    uint16_t dstPort  ///< Value for destination port.
+  );
+
+  /// Get the value count.
+  /// @note No corresponding @c set because this cannot be directly changed.
+  uint32_t getCount() const;
+  /// Access value element.
+  ValueElt& operator [] (
+    int idx ///< Index of target element.
+  );
+  //@}
+  /// Calcuate the size of an element with @a n values.
+  static size_t calcSize(
+    uint32_t n ///< Number of values.
+  );
+  /// Get the size (length) of this element.
+  size_t getSize() const;
+protected:
+  // All members are kept in network order.
+  MaskElt m_mask; ///< Base mask element.
+  uint32_t m_count; ///< Number of value elements.
+
+  /// Get base address of Value elements.
+  ValueElt* values();
+  /// Get base address of Value elements.
+  ValueElt const* values() const;
+};
+
+/// Assignment of caches by hash.
+/// Not in specification.
+class HashAssignElt {
+public:
+  typedef HashAssignElt self; ///< Self reference type.
+
+  /// Hash assignment bucket.
+  struct Bucket {
+    unsigned int m_idx:7; ///< Cache index.
+    unsigned int m_alt:1; ///<  Alternate hash flag.
+
+    /// Test for unassigned value in bucket.
+    bool is_unassigned() const;
+  } __attribute__((aligned(1),packed));
+
+  /// Default constructor - @b no initialization.
+  HashAssignElt();
+  /// Construct with @n elements.
+  HashAssignElt(
+    int n ///< Number of elements.
+  );
+
+  /// @name Accessors
+  //@{
+  /// Get the number of caches.
+  uint32_t getCount() const;
+  /// Get a cache address.
+  uint32_t getAddr(
+    int idx ///< Index of target address.
+  ) const;
+  /// Set a cache address.
+  self& setAddr(
+    int idx, ///< Index of target address.
+    uint32_t addr ///< Address value to set.
+  );
+  /// Access a bucket.
+  Bucket& operator [] (
+    size_t idx ///< Bucket index (0..N_BUCKETS-1)
+  );
+  /// Access a const bucket.
+  Bucket const& operator [] (
+    size_t idx ///< Bucket index (0..N_BUCKETS-1)
+  ) const;
+  //@}
+
+  /** Do a round robin assignment.
+      The buckets are assigned round robin, starting with 0, up to the
+      index of the last cache.
+      @return @c this.
+  */
+  self& round_robin_assign();
+
+  /// Get size in bytes of this structure.
+  size_t getSize() const;
+  /// Calculate size in bytes for @a n caches.
+  static size_t calcSize(
+    int n ///< Number of caches.
+  );
+protected:
+  uint32_t m_count; ///< # of caches (network order).
+
+  Bucket* getBucketBase();
+};
+
+/** Assignment of caches by mask.
+    @note Not in specification.
+
+    @internal Because this is an element, it must correspond exactly
+    to the serialized layout. Therefore we can't keep extra accounting
+    data around to make manipulation easier. We need a helper class
+    for that, which functions in a manner similar to an iterator.
+ */
+
+class MaskAssignElt {
+public:
+  typedef MaskAssignElt self; ///< Self reference type.
+
+  /// Default constructor - @b no initialization.
+  MaskAssignElt();
+
+  /** A minimalist insert iterator.
+   */
+  struct appender {
+    typedef appender self; ///< Self reference type.
+    /// Get pointer to current set.
+    MaskValueSetElt* operator -> ();
+    /// Append a new mask/value set.
+    /// @return A pointer to the new set.
+    MaskValueSetElt* mask(
+      uint32_t srcAddr, ///< Mask for source address.
+      uint32_t dstAddr, ///< Mask for destination address.
+      uint16_t srcPort, ///< Mask for source port.
+      uint16_t dstPort  ///< Mask for destination port.
+    );
+    /// Initialize the current set to empty with specific mask values.
+    /// @return A pointer to the new set.
+    MaskValueSetElt* initSet(
+      uint32_t srcAddr, ///< Mask for source address.
+      uint32_t dstAddr, ///< Mask for destination address.
+      uint16_t srcPort, ///< Mask for source port.
+      uint16_t dstPort  ///< Mask for destination port.
+    );
+    MaskValueSetElt* m_set; ///< Current set.
+    MaskAssignElt* m_elt; ///< Parent element.
+  };
+
+  /// @name Accessors
+  //@{
+  /// Get the number of mask/value sets.
+  uint32_t getCount() const;
+  //@}
+
+  appender init(
+    uint32_t srcAddr, ///< Mask for source address.
+    uint32_t dstAddr, ///< Mask for destination address.
+    uint16_t srcPort, ///< Mask for source port.
+    uint16_t dstPort  ///< Mask for destination port.
+  );
+
+  /// Get size in bytes of this structure.
+  /// @note This is not constant time. The mask/value sets must be traversed
+  /// to get the total size.
+  size_t getSize() const;
+  /// Get the size in bytes of the variable part of this structure.
+  /// @note This is not constant time. The mask/value sets must be traversed
+  /// to get the total size.
+  size_t getVarSize() const;
+protected:
+  uint32_t m_count; ///< # of sets (network order).
+
+  friend struct appender;
+};
+
+class CacheIdBox;
+
+/** Sect 5.7.2: Web-Cache Identity Element
+    According to the specification, this is a fixed structure with
+    hash data. However, in practice there is an undocumented variant for
+    mask assignment where it contains mask data instead of hash data.
+
+    This class provides basic control. Two subclasses specialize for the
+    two variants. Use @c isMask to detect which variant is present.
+
+    @note Do not add virtual methods, as reasonable as that seems because
+    this is a serialized object and the memory layout correspond to the
+    protocol definition.
+
+    @see CacheHashIdElt
+    @see CacheMaskIdElt
+*/
+class CacheIdElt {
+  friend class CacheIdBox;
+public:
+  typedef CacheIdElt self; ///< Self reference type.
+
+  /// Hash revision (protocol required).
+  static uint16_t const HASH_REVISION = 0;
+
+  /// @name Accessors
+  //@{
+  uint32_t getAddr() const; ///< Get address field.
+  self& setAddr(uint32_t addr); ///< Set address field to @a addr.
+  uint16_t getHashRev() const; ///< Get hash revision field.
+  self& setHashRev(uint16_t rev); ///< Set hash revision field to @a rev.
+  self& initHashRev(); ///< Set hash revision to default value.
+  bool getUnassigned() const; ///< Get unassigned field.
+  self& setUnassigned(bool state); ///< Set unassigned field to @a state.
+  bool isMask() const; ///< @return @c true if this is a mask assignment.
+  /** Set the maskiness of this structure.
+      Be very careful with this, as different values change the
+      memory layout of the object.
+  */
+  self& setMask(
+    bool state ///< @c true to be mask, @c false to be hash.
+  );
+
+  self& clearReserved(); ///< Set reserved bits to zero.
+  //@}
+
+protected:
+  uint32_t m_addr; ///< Identifying cache IP address.
+  uint16_t m_hash_rev; ///< Hash revision.
+  unsigned int m_reserved_0:7; ///< Reserved bits.
+  /** Cache not assigned.
+      If set the cache does not have an assignment in the redirection
+      hash table and the data in @a m_buckets is historical. This allows
+      a cache that was removed to be added back in the same buckets.
+  */
+  unsigned int m_unassigned:1;
+  unsigned int m_reserved_1:1; ///< Reserved (unused).
+  unsigned int m_is_mask:1; ///< Set -> mask, Clear -> hash.
+  unsigned int m_reserved_2:6; ///< Reserved (unused).
+  /** Trailing elements common to all cache ID variants.
+      Unfortunately, although @c weight and @c status are common, they are
+      after the variable data and so can't be put in the base class.
+      Best we can do is declare a struct for them for later convenience.
+  */
+  struct Tail {
+    uint16_t m_weight; ///< Weight of assignment.
+    uint16_t m_status; ///< Cache status.
+  };
+};
+
+/** Cache ID for Hash assignment.
+ */
+class CacheHashIdElt : public CacheIdElt {
+  friend class CacheIdBox;
+public:
+  typedef CacheHashIdElt self; ///< Self reference type.
+  typedef CacheIdElt super; ///< Parent type.
+  /// Container for hash assignment.
+  typedef uint8_t HashBuckets[N_BUCKETS >> 3];
+  /// @name Accessors
+  //@{
+  bool getBucket(int idx) const; ///< Get bucket state at index @a idx.
+  /// Set bucket at index @a idx to @a state.
+  self& setBucket(int idx, bool state);
+  self& setBuckets(bool state); ///< Set all buckets to @a state.
+  uint16_t getWeight() const; ///< Get weight field.
+  self& setWeight(uint16_t w); ///< Set weight field to @a w.
+  uint16_t getStatus() const; ///< Get status field.
+  self& setStatus(uint16_t s); ///< Set status field to @a s.
+  //@}
+  /// Get object size in bytes.
+  size_t getSize() const;
+protected:
+  /// Bit vector of buckets assigned to this cache.
+  HashBuckets m_buckets;
+  Tail m_tail; /// Trailing values in element.
+
+  /// Get the address of the tail elements.
+  Tail* getTailPtr();
+};
+
+/** Cache ID for Mask assignment.
+    Be a little careful with this object. Because it's an element and
+    must copy the serialized data layout, almost all of the methods are
+    not constant time but require walking internal data structures.
+
+    @internal Experimentally,
+    - A mask assign element count of zero does not work. It fails
+    with the wrongly descriptive message "incompatible assignment data".
+    - A single mask assign element with a mask set with one value seems to
+    work.
+ */
+class CacheMaskIdElt : public CacheIdElt {
+  friend class CacheIdBox;
+public:
+  typedef CacheMaskIdElt self; ///< Self reference type.
+  typedef CacheIdElt super; ///< Parent type.
+  /// @name Accessors
+  //@{
+  uint16_t getWeight() const; ///< Get weight field.
+  self& setWeight(uint16_t w); ///< Set weight field to @a w.
+  uint16_t getStatus() const; ///< Get status field.
+  self& setStatus(uint16_t s); ///< Set status field to @a s.
+  /// Get the number of mask/value sets.
+  uint32_t getCount() const;
+  //@}
+  /// Get object size in bytes.
+  size_t getSize() const;
+protected:
+  /// Mask assignment data.
+  MaskAssignElt m_assign;
+  /// Get a pointer to where the tail data is.
+  /// Presumes the assignment is filled out.
+  Tail* getTailPtr();
+};
+
+/** Holder for a @c CacheIdElt.
+    This class is needed because of the restrictions on element classes and
+    because a @c CacheIdElt is a variable sized element yet we need to store
+    instances of it in other classes. This box both holds an instance and
+    handles some of the memory allocation issues involved.
+ */
+class CacheIdBox {
+public:
+  typedef CacheIdBox self; ///< Self reference type.
+
+  /// Default constructor.
+  CacheIdBox();
+
+  /// @name Accessors
+  //@{
+  /// Get the identifying cache address.
+  uint32_t getAddr() const;
+  /// Set the identifying cache address.
+  self& setAddr(
+    uint32_t ///< Identifying IP address.
+  );
+  uint16_t getHashRev() const; ///< Get hash revision field.
+  self& setHashRev(uint16_t rev); ///< Set hash revision field to @a rev.
+  self& initHashRev(); ///< Set hash revision to default value.
+  bool getUnassigned() const; ///< Get unassigned field.
+  self& setUnassigned(bool state); ///< Set unassigned field to @a state.
+  bool isMask() const; ///< @return @c true if this is a mask assignment.
+  /** Set the maskiness of this structure.
+      Be very careful with this, as different values change the
+      memory layout of the object.
+  */
+  self& setMask(
+    bool state ///< @c true to be mask, @c false to be hash.
+  );
+
+  self& clearReserved(); ///< Set reserved bits to zero.
+  //@}
+  /// Initialize to unassigned hash.
+  /// The cache address is set to @a addr.
+  self& initDefaultHash(
+    uint32_t addr ///< Identifying cache address.
+  );
+  /// Initialize to unassigned mask
+  /// The cache address is set to @a addr.
+  self& initDefaultMask(
+    uint32_t addr ///< Identifying cache address.
+  );
+  /** Fill in element from source copy.
+      Internal memory is allocated and the @a src copied.
+   */
+  self& fill(
+    self const& src ///< Original source element
+  );
+  /** Fill in element from source copy.
+      This is used to write the element to memory that is allocated
+      independently of the box.
+      @note Caller is expected to have verified sufficient buffer space.
+   */
+  self& fill(
+    void* base, ///< Target buffer.
+    self const& src ///< Original source element
+  );
+  /// Initialize box from an existing element in memory.
+  int parse(
+    MsgBuffer base ///< Source memory.
+  );
+
+  /// Get the size in bytes of the contained element.
+  size_t getSize() const;
+protected:
+  /// Force buffer to be at least @a n bytes
+  self& require(
+    size_t n ///< Minimum buffer size required.
+  );
+
+  CacheIdElt* m_base; ///< Base address of memory for element.
+  CacheIdElt::Tail* m_tail; ///< Base address of trailing data elements.
+  size_t m_size; ///< Size of element (valid data in buffer);
+  size_t m_cap; ///< Size of allocated memory. Zero if external memory.
+};
+
+/** Base class for all components.
+
+    Each component is a fixed sized object that represents a
+    component in the WCCP message. The component instance points at
+    its corresponding data in the message. Values in the message are
+    accessed through accessor methods which have the form @c
+    getNAME and @c setNAME for "get field" and "set field". The
+    @c set methods return a reference to the component so that
+    they can be chained.
+
+    Most components will have an internal typedef @c raw_t which is a
+    structure with the exact memory layout of the
+    component. Components without this typedef cannot be directed
+    represented by a C++ structure (which is why we need this
+    indirection in the first place).
+*/
+class ComponentBase {
+public:
+  typedef ComponentBase self; ///< Self reference type.
+  /// Default constructor.
+  ComponentBase();
+  /// Check for not present.
+  bool isEmpty() const;
+
+protected:
+  /// Base of component in message data.
+  /// If this is @c NULL then the component is not in the message.
+  char* m_base;
+};
+
+/// Synthetic component to represent the overall message header.
+class MsgHeaderComp : public ComponentBase {
+public:
+  typedef MsgHeaderComp self; ///< Self reference type.
+  typedef ComponentBase super; ///< Parent type.
+
+  /// Sect 5.5:  Message Header
+  /// Serialized layout of message header.
+  struct raw_t {
+    uint32_t m_type; ///< @c message_type_t
+    uint16_t m_version; ///< Implementation version of sender
+    uint16_t m_length; ///< Message body length (excluding header)
+  };
+
+  /// Default constructor.
+  MsgHeaderComp() {}
+
+  /// @name Accessors
+  //@{
+  message_type_t getType(); ///< Get message type field.
+  uint16_t getVersion(); ///< Get message version field.
+  uint16_t getLength(); ///< Get message length field.
+  self& setType(message_type_t type); ///< Set message type field to @a type.
+  self& setVersion(uint16_t version); ///< Set version field to @a version.
+  self& setLength(uint16_t length); ///< Set length field to @a length.
+  //@}
+
+  /// Write initial values to message data.
+  /// @a base is updated to account for this component.
+  self& fill(
+    MsgBuffer& base, ///< [in,out] Buffer for component storage.
+    message_type_t t ///< Message type.
+  );
+
+  /// Validate component for existing data.
+  /// @a base is updated to account for this component.
+  int parse(
+    MsgBuffer& base ///< [in,out] Base address for component data.
+  );
+
+  /// Compute size of a component of this type.
+  static size_t calcSize();
+
+  /// Convert to a top level message type.
+  /// @return The converted type if valid, @c INVALID_MSG_TYPE if not.
+  static message_type_t toMsgType(int t);
+};
+
+/** Intermediate base class for components with the standard component header.
+
+    @note That's all of them except the message header itself.
+
+    @internal This saves some work getting around C++ co-variance issues
+    with return values.
+*/
+template <
+  typename T ///< Child class (CRT pattern)
+  >
+struct CompWithHeader : public ComponentBase {
+  /** Serialized layout of per component header.
+      All components except the message header start with this structure.
+      Provided for ease of use by child classes, which should
+      subclass this for their own @c raw_t.
+  */
+  struct raw_t {
+    uint16_t m_type; ///< Serialized @ref CompType.
+    uint16_t m_length; ///< length of rest of component (not including header).
+  };
+  /** Size of header.
+      This is needed by all subclasses because the value in the length field
+      excludes this structure.
+  */
+  static size_t const HEADER_SIZE = sizeof(raw_t);
+
+  /// @name Accessors
+  //@{
+  CompType getType() const; ///< Get component type field.
+  uint16_t getLength() const; ///< Get component length field.
+  T& setType(CompType type); ///< Set component type field to @a type.
+  T& setLength(uint16_t length); ///< Set length field to @a length.
+  //@}
+
+  /** Check the component header for type and length sanity.
+      This requires the (subclass) client to
+      - Do a size check to verify enough space for the component header.
+      - Set @a m_base
+      
+      This method
+      - Checks the component type against the expected type (@a ect)
+      - Checks stored component length against the buffer size.
+
+      @return A parse result.
+  */
+  int checkHeader(
+    MsgBuffer const& buffer, ///< Message buffer.
+    CompType t ///< Expected component type.
+  );
+};
+
+/** Sect 5.6.1: Security Info Component
+    This is used for both security options. Clients should check
+    the @c m_option to see if the @a m_impl member is valid.
+*/
+class SecurityComp
+  : public CompWithHeader<SecurityComp> {
+
+public:
+  typedef SecurityComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+  /// Specify the type for this component.
+  static CompType const COMP_TYPE = SECURITY_INFO;
+
+  /// Import security option type.
+  typedef SecurityOption Option;
+
+  static size_t const KEY_SIZE = 8;
+  typedef char Key[KEY_SIZE];
+
+  /// Raw memory layout, no security.
+  struct RawNone : public super::raw_t {
+    uint32_t m_option; ///< @c Option
+  };
+
+  /// Raw memory layout, with MD5.
+  struct RawMD5 : public RawNone {
+    /// Size of MD5 hash (in bytes).
+    static size_t const HASH_SIZE = 16;
+    /// Storage for MD5 hash.
+    typedef uint8_t HashData[HASH_SIZE];
+    /// MD5 hash value.
+    HashData m_data;
+  };
+
+  /// Default constructor.
+  SecurityComp();
+
+  /// @name Accessors
+  //@{
+  Option getOption() const; ///< Get security option field.
+  self& setOption(Option opt); ///< Set security option field to @a opt.
+  //@}
+
+  /// Write default values to the serialization buffer.
+  self& fill(MsgBuffer& buffer, Option opt = m_default_opt);
+  /// Validate an existing structure.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the memory size of the component.
+  static size_t calcSize(Option opt);
+
+  /// Set the global / default security key.
+  /// This is used for the security hash unless the local key is set.
+  /// @a key is copied to a global buffer and clipped to @c KEY_SIZE bytes.
+  static void setDefaultKey(
+    char const* key ///< Shared key.
+  );
+  static void setDefaultOption(
+    Option opt ///< Type of security.
+  );
+
+  /// Set messsage local security key.
+  self& setKey(
+    char const* key ///< Shared key.
+  );
+
+  /// Compute and set the security data.
+  /// @a msg must be a buffer that covers exactly the entire message.
+  self& secure(
+    MsgBuffer const& msg ///< Message data.
+  );
+
+  bool validate(
+    MsgBuffer const& msg ///< Message data.
+  ) const;
+
+protected:
+  /// Local to this message shared key / password.
+  Key m_key;
+  /// Use local key.
+  bool m_local_key;
+  /// Global (static) shared key / password.
+  static Key m_default_key;
+  /// Default security option.
+  static Option m_default_opt;
+};
+
+/// Sect 5.6.2: Service Info Component
+class ServiceComp
+  : public CompWithHeader<ServiceComp> {
+
+public:
+  typedef ServiceComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Specify the type for this component.
+  static CompType const COMP_TYPE = SERVICE_INFO;
+
+  /// Serialized format for component.
+  struct raw_t : public super::raw_t, public ServiceGroup {
+  };
+
+  ServiceComp(); ///< Default constructor, no member intialization.
+
+  /// @name Accessors
+  //@{
+  ServiceGroup::Type getSvcType() const; ///< Get service type field.
+  /** Set the service type.
+      If @a svc is @c SERVICE_STANDARD then all fields except the
+      component header and service id are set to zero as required
+      by the protocol.
+  */
+  self& setSvcType(ServiceGroup::Type svc);
+
+  uint8_t getSvcId() const; ///< Get service ID field.
+  self& setSvcId(uint8_t id); ///< Set service ID field to @a id.
+
+  uint8_t getPriority() const; ///< Get priority field.
+  self& setPriority(uint8_t pri); ///< Set priority field to @a p.
+
+  uint8_t getProtocol() const; ///< Get protocol field.
+  self& setProtocol(uint8_t p); ///< Set protocol field to @a p.
+
+  uint32_t getFlags() const; ///< Get flags field.
+  self& setFlags(uint32_t f); ///< Set the flags flags in field to @a f.
+  /// Set the flags in the flag field that are set in @a f.
+  /// Other flags are unchanged.
+  self& enableFlags(uint32_t f);
+  /// Clear the flags in the flag field that are set in @a f.
+  /// Other flags are unchanged.
+  self& disableFlags(uint32_t f);
+
+  /// Get a port value.
+  uint16_t getPort(
+    int idx ///< Index of target port.
+  ) const;
+  /// Set a port value.
+  self& setPort(
+    int idx, ///< Index of port.
+    uint16_t port ///< Value for port.
+  );
+  /// Zero (clear) all ports.
+  self& clearPorts();
+  /** Add a port to the service.
+      The first port which has not been set is set to @a port. It is an error
+      to add more than @c N_PORTS ports.
+   */
+  self& addPort(
+    uint16_t port ///< Port value.
+  );
+  //@}
+
+  /// Raw access to ServiceGroup.
+  operator ServiceGroup const& () const;
+
+  /** Fill from a service group definition.
+   */
+  self& fill(
+    MsgBuffer& base, ///< Target storage.
+    ServiceGroup const& svc ///< Service group definition.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the memory size of the component.
+  static size_t calcSize();
+
+protected:
+  int m_port_count; ///< Number of ports in use.
+
+  /// Cast raw internal pointer to data type.
+  raw_t* access();
+  /// Cast raw internal pointer to data type.
+  raw_t const* access() const;
+};
+
+/// Sect 5.6.3: RouterIdentity Info Component
+/// @note An instance of this struct is followed by @a m_count
+/// IP addresses.
+class RouterIdComp
+  : public CompWithHeader<RouterIdComp> {
+
+public:
+  typedef RouterIdComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Specify the type for this component.
+  static CompType const COMP_TYPE = ROUTER_ID_INFO;
+
+  /// Stub of serialized layout.
+  struct raw_t : public super::raw_t {
+    RouterIdElt m_id; ///< Router ID element.
+    /// Source address.
+    /// For response messages, this is the address to which the
+    /// original message was sent.
+    uint32_t m_to_addr;
+    /// # of target cache addresses.
+    uint32_t m_from_count;
+    // Addresses follow here.
+  };
+
+  /// @name Accessors
+  //@{
+  /// Directly access router ID element.
+  RouterIdElt& idElt();
+  /// Directly access router ID element.
+  RouterIdElt const& idElt() const;
+  /// Set the fields in the router ID element.
+  self& setIdElt(
+    uint32_t addr, ///< Identifying IP address for router.
+    uint32_t recv_id ///< Receive count for router to target cache.
+  );
+  uint32_t getAddr() const; ///< Get the address field in the ID element.
+  self& setAddr(uint32_t addr); ///< Set the address field in the ID element.
+  uint32_t getRecvId() const; ///< Get the receive ID field in the ID element.
+  self& setRecvId(uint32_t id); ///< Set the receive ID field in the ID element.
+
+  /// Get the sent to address.
+  uint32_t getToAddr() const;
+  /// Set the sent to address.
+  self& setToAddr(
+    uint32_t addr ///< Address value.
+  );
+  /// Get router count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getFromCount() const;
+  /// Get received from address.
+  uint32_t getFromAddr(
+    int idx ///< Index of address.
+  ) const;
+  /// Set received from address.
+  self& setFromAddr(
+    int idx, ///< Index of address.
+    uint32_t addr ///< Address value.
+  );
+  //@}
+  /// Find an address in the from list.
+  /// @return The index of the address, or -1 if not found.
+  int findFromAddr(
+    uint32_t addr ///< Search value.
+  );
+
+  /** Write serialization data for single cache target.
+      This completely fills the component.
+  */
+  self& fillSingleton(
+    MsgBuffer& base, ///< Target storage.
+    uint32_t addr, ///< Identifying IP address.
+    uint32_t recv_count, ///< Receive count for target cache.
+    uint32_t to_addr, ///< Destination address in initial packet.
+    uint32_t from_addr ///< Identifying IP address of target cache.
+  );
+
+  /** Write basic message structure.
+      The router and cache data must be filled in separately.
+  */
+  self& fill(
+    MsgBuffer& base, ///< Target storage.
+    size_t n_caches ///< Number of caches (fromAddr).
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the memory size of the component.
+  static size_t calcSize(
+    int n ///< Receive address count
+  );
+};
+
+/** Sect 5.6.4: Web-Cache Identity Info Component
+*/
+class CacheIdComp
+  : public CompWithHeader<CacheIdComp> {
+
+public:
+  typedef CacheIdComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = CACHE_ID_INFO;
+
+  /// Serialized format.
+  struct raw_t : public super::raw_t {
+    CacheIdElt m_id; ///< Identity element stub.
+  };
+
+  /// @name Accessors
+  //@{
+  /// Direct access to the cache ID element.
+  CacheIdBox& cacheId();
+  CacheIdBox const& cacheId() const;
+
+  // Only forward the common ones.
+  uint32_t getAddr() const; ///< Get address field.
+  self& setAddr(uint32_t addr); ///< Set address field to @a addr.
+  uint16_t getHashRev() const; ///< Get hash revision field.
+  self& setHashRev(uint16_t rev); ///< Set hash revision field to @a rev.
+  bool getUnassigned() const; ///< Get unassigned field.
+  self& setUnassigned(bool state); ///< Set unassigned field to @a state.
+  uint16_t getWeight() const; ///< Get weight field.
+  self& setWeight(uint16_t w); ///< Set weight field to @a w.
+  uint16_t getStatus() const; ///< Get status field.
+  self& setStatus(uint16_t s); ///< Set status field to @a s.
+  //@}
+
+  /** Write serialization data.
+      - Sets required header fields for the component.
+      - Copies the data from @a src.
+  */
+  self& fill(
+    MsgBuffer& base, ///< Target storage.
+    CacheIdBox const& src ///< Cache descriptor
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the memory size of the component.
+  /// Cannot be reliably computed statically.
+  size_t getSize();
+protected:
+  CacheIdBox m_box; ///< Wrapper for cache id element.
+};
+
+/** Sect 5.6.5: Router View Info Component
+ */
+class RouterViewComp
+  : public CompWithHeader<RouterViewComp> {
+
+public:
+  typedef RouterViewComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = RTR_VIEW_INFO;
+
+  /// Stub of the serialized data.
+  /// There is more variable sized data that must be handled specially.
+  struct raw_t : public super::raw_t {
+    uint32_t m_change_number; ///< Sequence number.
+    AssignmentKeyElt m_key; ///< Assignment data.
+    uint32_t m_router_count; ///< # of router elements.
+  };
+
+  RouterViewComp();
+
+  /// @name Accessors
+  //@{
+  /// Directly access assignment key.
+  AssignmentKeyElt& keyElt();
+  /// Directly access assignment key.
+  AssignmentKeyElt const& keyElt() const;
+  /// Get address in assignment key.
+  uint32_t getKeyAddr() const;
+  /// Set address in assignment key.
+  self& setKeyAddr(uint32_t addr);
+  /// Get change number in assignment key.
+  uint32_t getKeyChangeNumber() const;
+  /// Set change number in assignment key.
+  self& setKeyChangeNumber(uint32_t n);
+
+  uint32_t getChangeNumber() const; ///< Get change number field.
+  self& setChangeNumber(uint32_t n); ///< Set change number field to @a n
+
+  /// Get cache count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getCacheCount() const;
+  /// Access cache element.
+  CacheIdBox& cacheId(
+    int idx ///< Index of target element.
+  );
+  /// Access cache element.
+  CacheIdBox const& cacheId(
+    int idx ///< Index of target element.
+  ) const;
+  /// Get router count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getRouterCount() const;
+  /// Get router address.
+  uint32_t getRouterAddr(
+    int idx ///< Index of router.
+  ) const;
+  /// Set router address.
+  self& setRouterAddr(
+    int idx, ///< Index of router.
+    uint32_t addr ///< Address value.
+  );
+  //@}
+
+  /** Write serialization data.
+
+      A client @b must call this method before writing any fields directly.
+      After invocation the client must fill in the router and cache elements.
+  */
+  self& fill(
+    MsgBuffer& base, ///< Target storage.
+    int n_routers, ///< Number of routers in view.
+    int n_caches ///< Number of caches in view.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+protected:
+  /// Serialized count of cache addresses.
+  /// The actual addresses start immediate after this.
+  uint32_t* m_cache_count;
+  /// Wrappers for cache identity elements.
+  /// These are variably sized in the general case.
+  CacheIdBox m_cache_ids[MAX_CACHES];
+
+  /// Compute the address of the cache count field.
+  /// Assumes the router count field is set.
+  uint32_t* calc_cache_count_ptr();
+};
+
+/** Sect 5.6.6: Web-Cache View Info Component
+ */
+class CacheViewComp
+  : public CompWithHeader<CacheViewComp> {
+
+public:
+  typedef CacheViewComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = CACHE_VIEW_INFO;
+
+  /// Stub of the serialized data.
+  /// There is more variable sized data that must be handled specially.
+  struct raw_t : public super::raw_t {
+    uint32_t m_change_number; ///< Sequence number.
+    uint32_t m_router_count; ///< # of router ID elements.
+  };
+
+  /// @name Accessors
+  //@{
+  uint32_t getChangeNumber() const; ///< Get change number field.
+  self& setChangeNumber(uint32_t n); ///< Set change number field to @a n
+
+  /// Get router count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getRouterCount() const;
+  /// Access a router ID element.
+  RouterIdElt& routerElt(
+    int idx ///< Index of target element.
+  );
+  /** Find a router element by router IP address.
+      @return A pointer to the router element or @c NULL
+      if no router is identified by @a addr.
+  */
+  RouterIdElt* findf_router_elt(
+    uint32_t addr ///< Router IP address.
+  );
+  /// Get cache count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getCacheCount() const;
+  /// Get a cache address.
+  uint32_t getCacheAddr(
+    int idx ///< Index of target address.
+  ) const;
+  /// Set a cache address.
+  self& setCacheAddr(
+    int idx, ///< Index of target address.
+    uint32_t addr ///< Address value to set.
+  );
+  //@}
+
+  /** Write serialization data.
+
+      A client @b must call this method before writing any fields directly.
+      After invocation the client must fill in the router and cache elements.
+  */
+  self& fill(
+    MsgBuffer& buffer, ///< Target storage.
+    detail::cache::GroupData const& group ///< Service group information.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the total size of the component.
+  static size_t calcSize(
+    int n_routers, ///< Number of routers in view.
+    int n_caches ///< Number of caches in view.
+  );
+
+protected:
+  /// Get router element array.
+  /// @return A pointer to the first router element.
+  RouterIdElt* atf_router_array();
+  /// Serialized count of cache addresses.
+  /// The actual addresses start immediate after this.
+  uint32_t* m_cache_count;
+};
+
+/** Sect 5.6.7: Assignment Info Component
+ */
+class AssignInfoComp
+  : public CompWithHeader<AssignInfoComp> {
+
+public:
+  typedef AssignInfoComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = REDIRECT_ASSIGNMENT;
+
+  /// Stub of the serialized data.
+  /// There is more variable sized data that must be handled specially.
+  struct raw_t : public super::raw_t {
+    AssignmentKeyElt m_key; ///< Assignment key data.
+    RouterAssignListElt m_routers; ///< Routers.
+  };
+  typedef HashAssignElt::Bucket Bucket; ///< Import type.
+
+  /// @name Accessors
+  //@{
+  /// Directly access assignment key.
+  AssignmentKeyElt& keyElt();
+  /// Directly access assignment key.
+  AssignmentKeyElt const& keyElt() const;
+  /// Get address in assignment key.
+  uint32_t getKeyAddr() const;
+  /// Set address in assignment key.
+  self& setKeyAddr(uint32_t addr);
+  /// Get change number in assignment key.
+  uint32_t getKeyChangeNumber() const;
+  /// Set change number in assignment key.
+  self& setKeyChangeNumber(uint32_t n);
+
+  /// Get router count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getRouterCount() const;
+  /// Access a router assignment element.
+  RouterAssignElt& routerElt(
+    int idx ///< Index of target element.
+  );
+  /// Get cache count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getCacheCount() const;
+  /// Get a cache address.
+  uint32_t getCacheAddr(
+    int idx ///< Index of target address.
+  ) const;
+  /// Set a cache address.
+  self& setCacheAddr(
+    int idx, ///< Index of target address.
+    uint32_t addr ///< Address value to set.
+  );
+  /// Access a bucket.
+  Bucket& bucket(
+    int idx  ///< Index of target bucket.
+  );
+  /// Access a bucket.
+  Bucket const& bucket(
+    int idx ///< Index of target bucket.
+  ) const;
+  //@}
+
+  /// Fill out the component from an @c Assignment.
+  self& fill(
+    MsgBuffer& buffer, ///< Target storage.
+    detail::Assignment const& assign ///< Assignment data.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the total size of the component.
+  static size_t calcSize(
+    int n_routers, ///< Number of routers in view.
+    int n_caches ///< Number of caches in view.
+  );
+
+protected:
+  /// Serialized count of cache addresses.
+  /// The actual addresses start immediate after this.
+  uint32_t* m_cache_count;
+  /// Serialized bucket data.
+  Bucket* m_buckets;
+  /// Calculate the address of the cache count.
+  uint32_t* calcCacheCountPtr();
+  /// Calculate the address of the bucket array.
+  Bucket* calcBucketPtr();
+};
+
+/** Sect 5.6.9: Capabilities Info Component
+ */
+class CapComp
+  : public CompWithHeader<CapComp> {
+
+public:
+  typedef CapComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = CAPABILITY_INFO;
+  
+  // Not even a stub for this component, just an array of elements.
+
+  /// Default constructor.
+  CapComp();
+
+  /// @name Accessors.
+  //@{
+  /// Directly access mask value element.
+  CapabilityElt& elt(
+    int idx ///< Index of target element.
+  );
+  CapabilityElt const& elt(
+    int idx ///< Index of target element.
+  ) const;
+  /// Get the element count.
+  /// @note No corresponding @c setf_ because that cannot be changed once set.
+  /// @see fill
+  uint32_t getEltCount() const;
+  //@}
+
+  /** Write serialization data.
+
+      The capability elements must be filled @b after invoking this method.
+      And, of course, do not fill more than @a n of them.
+  */
+  self& fill(
+    MsgBuffer& buffer, ///< Target storage.
+    int n ///< Number of capabilities.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the total size of the component.
+  static size_t calcSize(
+    int n ///< Number of capabilities.
+  );
+
+  /// Find value for Cache Assignment.
+  ServiceGroup::CacheAssignmentStyle getCacheAssignmentStyle() const;
+  /// Find value for packet forwarding.
+  ServiceGroup::PacketStyle getPacketForwardStyle() const;
+  /// Find value for packet return.
+  ServiceGroup::PacketStyle getPacketReturnStyle() const;
+  /// Invalidate cached values.
+  /// Needed after modifying elements via the @c elt method.
+  self& invalidate();
+
+protected:
+  /// Fill the cached values.
+  void cache() const;
+
+  int m_count; ///< # of elements.
+  /** Whether the style values are valid.
+      We load all the values on the first request because we have to walk
+      all the capabilities anyway, and cache them.
+  */
+  mutable bool m_cached;
+  /// Style used to forward packets to cache.
+  mutable ServiceGroup::PacketStyle m_packet_forward;
+  /// Style used to return packets to the router.
+  mutable ServiceGroup::PacketStyle m_packet_return;
+  /// Style used to make cache assignments.
+  mutable ServiceGroup::CacheAssignmentStyle m_cache_assign;
+};
+
+/** Sect 5.6.10: Alternate Assignment Component
+    This is an abstract base class. It is specialized for each alternate.
+ */
+class AltAssignComp
+  : public CompWithHeader<AltAssignComp> {
+
+public:
+  typedef AltAssignComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = ALT_ASSIGNMENT;
+  /// Alternate is hash.
+  static uint16_t const ALT_HASH_ASSIGNMENT = 0;
+  /// Alternate is mask.
+  static uint16_t const ALT_MASK_ASSIGNMENT = 1;
+
+  /// Component secondary header.
+  /// @internal Split out because we need to compute its size.
+  struct local_header_t {
+    uint16_t m_assign_type; ///< Assignment body type.
+    uint16_t m_assign_length; ///< Assignment body length.
+  };
+  /// Stub of the serialized data.
+  /// There is more variable sized data that must be handled specially.
+  struct raw_t : public super::raw_t, public local_header_t {
+    // These are the same in all current subclasses.
+    AssignmentKeyElt m_key; ///< Assignment key data.
+    RouterAssignListElt m_routers; ///< Routers.
+  };
+
+  /// Force virtual desctructor.
+  virtual ~AltAssignComp() {}
+
+  /// @name Accessors
+  //@{
+  /// Get the assignment type.
+  uint16_t getAssignType() const;
+  /// Set the assignment type.
+  self& setAssignType(
+    uint16_t t ///< Assignment type.
+  );
+  /// Get the assignment length.
+  uint16_t getAssignLength() const;
+  /// Set the assignment length.
+  self& setAssignLength(
+    uint16_t length ///< Length in bytes.
+  );
+  /// Get router count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getRouterCount() const;
+  /// Directly access assignment key.
+  AssignmentKeyElt& keyElt();
+  /// Directly access assignment key.
+  AssignmentKeyElt const& keyElt() const;
+  //@}
+
+  /// Fill out the component from an @c Assignment.
+  virtual self& fill(
+    MsgBuffer& buffer, ///< Target storage.
+    detail::Assignment const& assign ///< Assignment data.
+  ) = 0;
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  virtual int parse(MsgBuffer& buffer) = 0;
+
+protected:
+  /// Calculate the first byte past the end of the variable data.
+  void* calcVarPtr();
+};
+
+/** Sect 5.6.10: Alternate Assignment Component
+    This is the hash based version.
+ */
+class AltHashAssignComp
+  : public AltAssignComp {
+
+public:
+  typedef AltHashAssignComp self; ///< Self reference type.
+  typedef AltAssignComp super; ///< Parent type.
+
+  /// @name Accessors
+  //@{
+  /// Get cache count field.
+  /// @note No @c setf method because this cannot be changed independently.
+  /// @see fill
+  uint32_t getCacheCount() const;
+  //@}
+
+  /// Force virtual desctructor.
+  virtual ~AltHashAssignComp() {}
+
+  /// Fill out the component from an @c Assignment.
+  virtual self& fill(
+    MsgBuffer& buffer, ///< Target storage.
+    detail::Assignment const& assign ///< Assignment data.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  virtual int parse(MsgBuffer& buffer);
+
+  /// Compute the total size of the component.
+  static size_t calcSize(
+    int n_routers, ///< Number of routers in view.
+    int n_caches ///< Number of caches in view.
+  );
+
+protected:
+  /// Serialized count of cache addresses.
+  /// The actual addresses start immediate after this.
+  uint32_t* m_cache_count;
+  /// Calculate the address of the cache count.
+  uint32_t* calcCacheCountPtr();
+};
+
+/** Sect 5.6.10: Alternate Assignment Component
+    This is the mask based version.
+ */
+class AltMaskAssignComp
+  : public AltAssignComp {
+
+public:
+  typedef AltMaskAssignComp self; ///< Self reference type.
+  typedef AltAssignComp super; ///< Parent type.
+  
+  /// Force virtual desctructor.
+  virtual ~AltMaskAssignComp() {}
+
+  /// Fill out the component from an @c Assignment.
+  virtual self& fill(
+    MsgBuffer& buffer, ///< Target storage.
+    detail::Assignment const& assign ///< Assignment data.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  virtual int parse(MsgBuffer& buffer);
+
+protected:
+  MaskAssignElt* m_mask_elt; ///< Address of the mask assign element.
+};
+
+/** Sect 5.6.12: Command Info Component
+ */
+class CmdComp
+  : public CompWithHeader<CmdComp> {
+
+public:
+  typedef CmdComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = COMMAND_EXTENSION;
+
+  /// Command types.
+  enum cmd_t {
+    SHUTDOWN = 1, ///< Cache is shutting down.
+    SHUTDOWN_RESPONSE = 2 ///< SHUTDOWN ack.
+  };
+
+  /// Serialized data layout.
+  /// @internal Technically the command data is variable, but all currently
+  /// defined commands have the same 32 bit data element.
+  struct raw_t : public super::raw_t {
+    uint16_t m_cmd; ///< Command type / code.
+    uint16_t m_cmd_length; ///< Length of command data.
+    uint32_t m_cmd_data; ///< Command data.
+  };
+
+  /// @name Accessors.
+  //@{
+  /// Directly access mask value element.
+  cmd_t getCmd() const; ///< Get command type.
+  self& setCmd(cmd_t cmd); ///< Set command type.
+  uint32_t getCmdData() const; ///< Get command data.
+  self& setCmdData(uint32_t data); ///< Set command @a data.
+  //@}
+
+  /// Write basic serialization data.
+  /// Elements must be filled in seperately and after invoking this method.
+  self& fill(
+    MsgBuffer& buffer, ///< Component storage.
+    cmd_t cmd, ///< Command type.
+    uint32_t data ///< Command data.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the total size of the component.
+  static size_t calcSize();
+};
+
+/// Sect 5.6.11: Assignment Map Component
+class AssignMapComp
+  : public CompWithHeader<AssignMapComp> {
+
+public:
+  typedef AssignMapComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = ASSIGN_MAP;
+
+  /// Serialized layout structure.
+  /// Not complete, only a stub.
+  struct raw_t : public super::raw_t {
+    MaskAssignElt m_assign;
+  };
+
+  /// Default constructor.
+  AssignMapComp();
+
+  /// @name Accessors.
+  //@{
+  /// Get the element count.
+  uint32_t getCount() const;
+  //@}
+
+  /// Fill from assignment data.
+  self& fill(
+    MsgBuffer& buffer, ///< Component storage.
+    detail::Assignment const& assign ///< Assignment data.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+};
+
+/// Sect 5.6.8: Router Query Info Component.
+class QueryComp
+  : public CompWithHeader<QueryComp> {
+public:
+  typedef QueryComp self; ///< Self reference type.
+  typedef CompWithHeader<self> super; ///< Parent type.
+
+  /// Component type ID for this component.
+  static CompType const COMP_TYPE = QUERY_INFO;
+
+  /// Internal layout.
+  struct raw_t : public super::raw_t {
+    uint32_t m_router_addr; ///< Identifying router address.
+    uint32_t m_recv_id; ///< Receive ID router expects in reply.
+    uint32_t m_to_addr; ///< Destination address of query.
+    uint32_t m_cache_addr; ///< Identifying address of cache.
+  };
+
+  /// @name Accessors.
+  //@{
+  /// Directly access mask value element.
+  uint32_t getRouterAddr() const; ///< Get identifying router address.
+  self& setRouterAddr(uint32_t addr); ///< Set identifying router address.
+  uint32_t getToAddr() const; ///< Get target address.
+  self& setToAddr(uint32_t addr); ///< Set target address.
+  uint32_t getCacheAddr() const; ///< Get identifying cache address.
+  self& setCacheAddr(uint32_t addr); ///< Set identifying cache address.
+  uint32_t getRecvId() const; ///< Get receive ID.
+  self& setRecvId(uint32_t data); ///< Set receive ID.
+  //@}
+
+  /// Write serialization data.
+  /// This fills in all fields.
+  self& fill(
+    MsgBuffer& buffer, ///< Component storage.
+    uint32_t routerAddr, ///< Router identifying address.
+    uint32_t toAddr, ///< Destination address.
+    uint32_t cacheAddr, ///< Cache identifying address.
+    uint32_t recvId ///< Recieve ID.
+  );
+
+  /// Validate an existing structure.
+  /// @return Parse result.
+  int parse(MsgBuffer& buffer);
+
+  /// Compute the total size of the component.
+  static size_t calcSize();
+};
+
+/// Cache assignment hash function.
+inline uint8_t
+assignment_hash(
+  uint32_t key ///< Key to hash.
+) {
+  key ^= key >> 16;
+  key ^= key >> 8;
+  return key & 0xFF;
+}
+
+/// IP header information for a receive message.
+struct IpHeader {
+  uint32_t m_src; ///< Source address.
+  uint32_t m_dst; ///< Destination address.
+};
+
+// Various static values.
+char const* const BUFFER_TOO_SMALL_FOR_COMP_TEXT = "Unable to write component -- buffer too small";
+
+// ------------------------------------------------------
+namespace detail {
+  /** Local storage for cache assignment data.
+      The maintenance of this data is sufficiently complex that it is better
+      to have a standard class to hold it, rather than updating a serialized
+      form.
+  */
+  class Assignment {
+  public:
+    typedef Assignment self; ///< Self reference type.
+    typedef AssignmentKeyElt Key; ///< Import assignment key type.
+    /// Import assignment bucket definition.
+    /// @internal Just one byte, no serialization issues.
+    typedef AssignInfoComp::Bucket Bucket;
+
+    /// Default constructor. Initialization to empty state.
+    Assignment();
+
+    /** Check for active assignment.
+
+        An assignment is active if it is is current. This means either it
+        was successfully generated on the cache side, or a valid assignment
+        was received on the router side and has not expired.
+
+        @return The current active state.
+    */
+    bool isActive() const;
+    /// Control active flag.
+    self& setActive(
+      bool state ///< New active state.
+    );
+
+    /** Fill the assignment from cache service group data.
+        Caches that are obsolete are purged from the data.
+        @return @c true if a valid assignment was generated,
+        @c false otherwise.
+    */
+    bool fill(
+      cache::GroupData& group, ///< Service group data.
+      uint32_t addr ///< Identifying IP address of designated cache.
+    );
+    /// Update the receive ID for a router.
+    self& updateRouterId(
+      uint32_t addr, ///< Identifying IP address of router.
+      uint32_t rcvid, ///< New receive ID.
+      uint32_t cno ///< New change number.
+    );
+
+    /// Get the assignment key.
+    AssignmentKeyElt const& getKey() const;
+    /// Get the router assignment list.
+    RouterAssignListElt const& getRouterList() const;
+    /// Get the hash assignment.
+    HashAssignElt const& getHash() const;
+    /// Get the mask assignment.
+    MaskAssignElt const& getMask() const;
+
+  protected:
+    Key m_key; ///< Assignment key.
+    bool m_active; ///< Active state.
+
+    // These store the serialized assignment chunks which are assembled
+    // in to the components as needed. Each points in to the serialization
+    // buffer, or is @c NULL if that assignment data isn't valid.
+    /// Router assignments.
+    RouterAssignListElt *m_router_list;
+    /// Hash assignment.
+    HashAssignElt *m_hash_assign;
+    /// Mask assignment.
+    MaskAssignElt *m_mask_assign;
+
+    /// Buffer for serialization.
+    MsgBuffer m_buffer;
+  };
+
+  namespace endpoint {
+    /// Common service group data.
+    struct GroupData {
+      typedef GroupData self; ///< Self reference type.
+
+      ServiceGroup m_svc; ///< The service definition.
+      uint32_t m_generation; ///< Generation value (change number).
+      time_t m_generation_time; ///< Time of last view change.
+
+      bool m_use_security_opt; ///< Use group local security.
+      SecurityComp::Option m_security_opt; ///< Type of security.
+      bool m_use_security_key; ///< Use group local key.
+      SecurityComp::Key m_security_key; ///< MD5 key.
+
+      /** Group assignment data.
+          This is used as a place to generate an assignment or
+          store one received from an extern source.
+      */
+      detail::Assignment m_assign_info;
+      
+      /// Default constructor.
+      GroupData();
+      /// Use @a key instead of global default.
+      self& setKey(
+        char const* key ///< Shared key.
+      );
+      /// Use security @a style instead of global default.
+      self& setSecurity(
+        SecurityOption style ///< Security style to use.
+      );
+    };
+  }
+}
+// ------------------------------------------------------
+/** Base class for all messages.
+ */
+class BaseMsg {
+public:
+  /// Default constructor.
+  BaseMsg();
+  /// Destructor.
+  virtual ~BaseMsg() {}
+
+  /// Set the message @a buffer.
+  void setBuffer(
+    MsgBuffer const& buffer ///< Storage for message.
+  );
+  /// Get the current buffer.
+  MsgBuffer const& buffer() const;
+  /// Invoke once all components have been filled.
+  /// Sets the length and updates security data if needed.
+  virtual void finalize();
+  /// Get available buffer space.
+  size_t getSpace() const;
+  /// Get the message size.
+  size_t getCount() const;
+
+  /// Validate security option.
+  /// @note This presumes a sublcass has already successfully parsed.
+  bool validateSecurity() const;
+
+  // Common starting components for all messages.
+  MsgHeaderComp m_header; ///< Message header.
+  SecurityComp m_security; ///< Security component.
+  ServiceComp m_service; ///< Service provided.
+
+protected:
+  MsgBuffer m_buffer; ///< Raw storage for message data.
+};
+
+/// Sect 5.1: Layout and control for @c WCCP2_HERE_I_AM
+class HereIAmMsg
+  : public BaseMsg {
+public:
+  typedef HereIAmMsg self; ///< Self reference type.
+
+  /** Fill in the basic message structure.
+      This expects @c setBuffer to have already been called
+      with an appropriate buffer.
+      The actual router and cache data must be filled in
+      after this call, which will allocate the appropriate spaces
+      in the message layou.
+  */
+  void fill(
+    detail::cache::GroupData const& group, ///< Service group for message.
+    CacheIdBox const& cache_id, ///< ID to use for this cache.
+    SecurityOption sec_opt ///< Security option to use.
+  );
+  /** Fill in optional capabilities.
+      The capabilities component is added only if the @a router
+      is set to send them.
+  */
+  void fill_caps(
+    detail::cache::RouterData const& router ///< Target router.
+  );
+  /// Parse message data, presumed to be of this type.
+  int parse(
+    ts::Buffer const& buffer ///< Raw message data.
+  );
+
+  CacheIdComp m_cache_id; ///< Web cache identity info.
+  CacheViewComp m_cache_view; ///< Web cache view.
+  CapComp m_capabilities; ///< Capabilities data.
+  CmdComp m_command; ///< Command extension.
+};
+
+/// Sect 5.2: 'I See You' Message
+class ISeeYouMsg
+  : public BaseMsg {
+public:
+  typedef ISeeYouMsg self; ///< Self reference type.
+
+  /// Fill out message structure.
+  /// Router ID and view data must be filled in seperately.
+  void fill(
+    detail::router::GroupData const& group, ///< Service groupc context.
+    SecurityOption sec_opt, ///< Security option.
+    detail::Assignment& assign, ///< Cache assignment data.
+    size_t to_caches, ///< # of target caches for message.
+    size_t n_routers, ///< Routers in view.
+    size_t n_caches, ///< Caches in view.
+    bool send_capabilities = false ///< Send capabilities.
+  );
+
+  /// Parse message data, presumed to be of this type.
+  int parse(
+    ts::Buffer const& buffer ///< Raw message data.
+  );
+
+  RouterIdComp m_router_id; ///< Router ID.
+  RouterViewComp m_router_view; ///< Router view data.
+  // The rest of these are optional. The spec says we should get
+  // an assignment or map, but in practice that doesn't happen with
+  // actual Cisco routers in the hash case. Perhaps it happens with
+  // a map.
+  AssignInfoComp m_assignment; ///< Assignment data.
+  AssignMapComp m_map; ///< Assignment map.
+  CapComp m_capabilities; ///< Capabilities data.
+  CmdComp m_command; ///< Command extension.
+};
+
+/// Sect 5.1: Layout and control for @c WCCP2_REDIRECT_ASSIGN
+class RedirectAssignMsg
+  : public BaseMsg {
+public:
+  typedef RedirectAssignMsg self; ///< Self reference type.
+
+  /** Fill in the basic message structure.
+      This expects @c setBuffer to have already been called
+      with an appropriate buffer.
+      The actual router and cache data must be filled in
+      after this call, which will allocate the appropriate spaces
+      in the message layou.
+  */
+  void fill(
+    detail::cache::GroupData const& group, ///< Service group for message.
+    SecurityOption sec_opt ///< Security option to use.
+  );
+
+  /// Parse message data, presumed to be of this type.
+  int parse(
+    ts::Buffer const& buffer ///< Raw message data.
+  );
+
+  // Only one of these should be present in an instance.
+  AssignInfoComp m_hash_assign; ///< Primary (hash) assignment.
+  AltHashAssignComp m_alt_hash_assign; ///< Alternate (hash) assignment.
+  AltMaskAssignComp m_alt_mask_assign; ///< Alternate (mask) assignment.
+};
+
+/// Sect 5.4: @c WCCP_REMOVAL_QUERY
+class RemovalQueryMsg
+  : public BaseMsg {
+public:
+  typedef RemovalQueryMsg self; ///< Self reference type.
+
+  /** Fill in the basic message structure.
+      This expects @c setBuffer to have already been called
+      with an appropriate buffer.
+      The actual router and cache data must be filled in
+      after this call, which will allocate the appropriate spaces
+      in the message layou.
+  */
+  void fill(
+    detail::cache::GroupData const& group, ///< Service group for message.
+    SecurityOption sec_opt, ///< Security option to use.
+    AssignmentKeyElt const& key, ///< Assignment key.
+    int n_routers, ///< Number of routers expected.
+    int n_caches ///< Number of caches expected.
+  );
+
+  /// Parse message data, presumed to be of this type.
+  int parse(
+    ts::Buffer const& buffer ///< Raw message data.
+  );
+
+  QueryComp m_query; ///< Router Removal Query component.
+};
+
+// ------------------------------------------------------
+/// Last packet information.
+struct PacketStamp {
+  typedef PacketStamp self; ///< Self reference type.
+
+  PacketStamp(); ///< Default constructor (zero elements).
+  /// Set the @a time and @a generation.
+  self& set(time_t time, uint32_t generation);
+
+  time_t m_time; ///< Time when packet was sent/received.
+  uint32_t m_sn; ///< Sequence # of packet.
+};
+
+/** Implementation class for EndPoint.
+    All of the WCCP structures are defined in this class.
+
+    A note on the component classes - these are designed to reside in
+    a side buffer which then points in to the actual message
+    buffer. This is done because the WCCP designers were not too
+    bright. Rather than packing the fixed sized elements in front and
+    using offsets to point at variables sized data, it's intermixed,
+    so it's not possible to declare C++ structures that map on to the
+    actual message data in all cases. And because mixed styles are
+    worse than a consistent mediocre style, we go with the latter and
+    put all the message structures on the side. This also means having
+    to use accessor methods.
+ */
+class Impl : public ts::IntrusivePtrCounter {
+  friend class EndPoint;
+public:
+  typedef Impl self; ///< Self reference type.
+
+  /// Import detail struct.
+  typedef detail::endpoint::GroupData GroupData;
+
+  /// Default constructor.
+  Impl();
+  /** Set the local address used for this endpoint.
+      If not set, an arbitrary local address will be 
+      @note This can only be called once, and must be called before
+      @c open.
+  */
+  /// Force virtual destructor.
+  virtual ~Impl();
+
+  /// Open a socket for communications.
+  /// @return 0 on success, -ERRNO on failure.
+  virtual int open(
+    uint32_t addr ///< Local IP address.
+  );
+
+  /// Use MD5 security.
+  void useMD5Security(
+    ts::ConstBuffer const& key ///< Shared key.
+  );
+
+  /// Perform all scheduled housekeeping functions.
+  /// @return 0 for success, -errno on error.
+  virtual int housekeeping() = 0;
+
+  /// Recieve and process a message.
+  /// @return 0 for success, -ERRNO on system error.
+  virtual ts::Rv<int> handleMessage();
+
+  /// Check if endpoint is configured.
+  /// @return @c true if ready to operate, @c false otherwise.
+  virtual bool isConfigured() const  = 0;
+
+  /* These handlers simply generate an error message and return.  The
+     base @c handleMessage will read the data from the socket and
+     validate the message header. It then calls the appropriate one of
+     these specialized message handlers.  Subclasses should override
+     to process relevant messages.
+  */
+  /// Process HERE_I_AM message.
+  virtual ts::Errata handleHereIAm(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Buffer with message data.
+  );
+  /// Process I_SEE_YOU message.
+  virtual ts::Errata handleISeeYou(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Buffer with message data.
+  );
+  /// Process REDIRECT_ASSIGN message.
+  virtual ts::Errata handleRedirectAssign(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Buffer with message data.
+  );
+  /// Process REMOVAL_QUERY message.
+  virtual ts::Errata handleRemovalQuery(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Buffer with message data.
+  );
+
+protected:
+  /** Local address for this end point.
+      This is set only when the socket is open.
+   */
+  uint32_t m_addr;
+  int m_fd; ///< Our socket.
+
+  bool m_use_security_opt; ///< Use group local security.
+  SecurityComp::Option m_security_opt; ///< Type of security.
+  bool m_use_security_key; ///< Use group local key.
+  SecurityComp::Key m_security_key; ///< MD5 key.
+
+  /// Close the socket.
+  void close();
+  /// Set security options in a message.
+  /// @return Security option to use during message fill.
+  SecurityOption setSecurity(
+    BaseMsg& msg, ///< Message.
+    GroupData const& group ///< Group data used to control fill.
+  ) const;
+  /// Validate a security component.
+  bool validateSecurity(
+    BaseMsg& msg, ///< Message data (including security component).
+    GroupData const& group ///< Group data for message.
+  );
+};
+// ------------------------------------------------------
+namespace detail {
+  namespace cache {
+    /// Caches's view of caches.
+    struct CacheData {
+      /// Get the identifying IP address for this cache.
+      uint32_t idAddr() const;
+      /// Cache identity data.
+      CacheIdBox m_id;
+      /// Last time this cache was mentioned by the routers.
+      /// Indexed in parallel to the routers.
+      std::vector<PacketStamp> m_src;
+    };
+
+    /// Cache's view of routers.
+    struct RouterData {
+      /// Default constructor, no member initialization.
+      RouterData();
+      /// Construct with address.
+      RouterData(
+        uint32_t addr ///< Router identifying address.
+      );
+
+      /// Time until next packet.
+      /// @return Seconds until a packet should be sent.
+      time_t waitTime(
+        time_t now ///< Current time.
+      ) const;
+      /// Time till next ping.
+      /// @return Seconds until a HERE_I_AM should be sent.
+      time_t pingTime(
+        time_t now ///< Current time.
+      ) const;
+
+      uint32_t m_addr; ///< Router identifying IP address.
+      uint32_t m_generation; ///< Router's view change number.
+      /** Most recent packet received from router.
+       *  The sequence number @a m_sn is the receive ID of the router.
+       */
+      PacketStamp m_recv;
+      /** Most recent packet sent to router.
+       *  The sequence number @a m_sn is the view generation of this cache.
+       */
+      PacketStamp m_xmit;
+      /// Cache ID of this cache as reflected by this router.
+      CacheIdBox m_local_cache_id;
+      int m_rapid; ///< Rapid replies to send.
+      bool m_assign; ///< Send a REDIRECT_ASSIGN.
+      bool m_send_caps; ///< Send capabilities.
+      /// Packet forwarding method selected.
+      ServiceGroup::PacketStyle m_packet_forward;
+      /// Packet return method selected.
+      ServiceGroup::PacketStyle m_packet_return;
+      /// Cache assignment method selected.
+      ServiceGroup::CacheAssignmentStyle m_cache_assign;
+
+    };
+
+    /// Data for a seeded router.
+    struct SeedRouter {
+      SeedRouter(); ///< Default constructor, no member initialization.
+      /// Construct with address @a addr.
+      /// Other members are zero initialized.
+      SeedRouter(
+        uint32_t addr
+      );
+      uint32_t m_addr; ///< Address of router.
+      uint32_t m_count; ///< # of packets sent w/o response.
+      time_t m_xmit; ///< Time of last packet sent.
+    };
+
+    /// Storage type for known caches.
+    typedef std::vector<CacheData> CacheBag;
+    /// Storage type for known routers.
+    typedef std::vector<RouterData> RouterBag;
+
+    /** Cache's view of a service group.
+        This stores the internal accounting information, it is not the
+        serialized form.
+    */
+    struct GroupData : public endpoint::GroupData {
+      typedef GroupData self; ///< Self reference type.
+      typedef endpoint::GroupData super; ///< Parent type.
+
+      /// Cache identity of this cache.
+      CacheIdBox m_id;
+
+      /// Packet forwarding methods supported.
+      ServiceGroup::PacketStyle m_packet_forward;
+      /// Packet return methods supported.
+      ServiceGroup::PacketStyle m_packet_return;
+      /// Cache assignment methods supported.
+      ServiceGroup::CacheAssignmentStyle m_cache_assign;
+
+      /// Known caches.
+      CacheBag m_caches;
+      /// Known routers.
+      RouterBag m_routers;
+
+      /// Set if there an assignment should be computed and sent.
+      /// This is before checking for being a designated cache
+      /// (that check is part of the assignment generation).
+      bool m_assignment_pending;
+
+      /// Seed routers.
+      std::vector<SeedRouter> m_seed_routers;
+
+      GroupData(); ///< Default constructor.
+
+      /// Find a router by IP @a addr.
+      /// @return A pointer to the router, or @c NULL if not found.
+      RouterBag::iterator findRouter(
+        uint32_t addr ///< IP address of cache.
+      );
+
+      /// Set an intial router for a service group.
+      self& seedRouter(
+        uint32_t addr ///< IP address for router.
+      );
+      /// Remove a seed router.
+      /// @return The last time a packet was sent to the router.
+      time_t removeSeedRouter(
+        uint32_t addr ///< Identifying router address.
+      );
+
+      /// Find a cache by IP @a addr.
+      /// @return An iterator to the cache, or @c NULL if not found.
+      CacheBag::iterator findCache(
+        uint32_t addr ///< IP address of cache.
+      );
+      /// Adjust packet stamp vectors to track routers.
+      void resizeCacheSources();
+
+      /// Time until next event.
+      /// @return The number of seconds until the next event of interest.
+      time_t waitTime(
+        time_t now ///< Current time.
+      ) const;
+
+      /** Cull routers.
+          Routers that have not replied recently are moved from the
+          active router list to the seed router list.
+
+          @return @c true if any routers were culled, @c false otherwise.
+      */
+      bool cullRouters(
+        time_t now ///< Current time.
+      );
+
+      /// Update state to reflect a view change.
+      self& viewChanged(time_t now);
+
+      /// Use @a key instead of global default.
+      self& setKey(
+        char const* key ///< Shared key.
+      );
+      /// Use security @a style instead of global default.
+      self& setSecurity(
+        SecurityOption style ///< Security style to use.
+      );
+    };
+  }
+}
+
+/** Implementation class for Cache Endpoint.
+ */
+class CacheImpl : public Impl {
+public:
+  typedef CacheImpl self; ///< Self reference type.
+  typedef Impl super; ///< Parent type.
+
+  // Import details
+  typedef detail::cache::SeedRouter SeedRouter;
+  typedef detail::cache::CacheData CacheData;
+  typedef detail::cache::RouterData RouterData;
+  typedef detail::cache::GroupData GroupData;
+  typedef detail::cache::CacheBag CacheBag;
+  typedef detail::cache::RouterBag RouterBag;
+
+  /** Define a service group.
+      If no service is defined for the ID in @a svc, it is created.
+      If @a result is not @c NULL then it is set to
+      - @c ServiceGroup::DEFINED if the service was created.
+      - @c ServiceGroup::EXISTS if the service matches the existing service.
+      - @c ServiceGroup::CONFLICT if the service doesn't match the existing service.
+
+      @return The data for the service group.
+  */
+  virtual GroupData& defineServiceGroup(
+    ServiceGroup const& svc, ///< [in] Service to define.
+    ServiceGroup::Result* result = 0 ///< [out] Result for service creation.
+  );
+
+  /** Set an intial router for a service group.
+      This is needed to bootstrap the protocol.
+      If the router is already seeded, this call is silently ignored.
+  */
+  self& seedRouter(
+    uint8_t id, ///< Service group ID.
+    uint32_t addr ///< IP address for router.
+  );
+
+  /// Define services from a configuration file.
+  ts::Errata loadServicesFromFile(
+    char const* path ///< Path to file.
+  );
+
+  /// Override.
+  int open(uint32_t addr);
+
+  /// Time until next scheduled event.
+  time_t waitTime() const;
+
+  /// Check for configuration.
+  bool isConfigured() const;
+
+  /// Perform all scheduled housekeeping functions.
+  /// @return 0 for success, -errno on error.
+  virtual int housekeeping();
+
+  /** Check cache assignment reported by a router against internal assign.
+      @return @c true if they are the same, @c false otherwise.
+  */
+  virtual ts::Errata checkRouterAssignment(
+    GroupData const& group, ///< Group with assignment.
+    RouterViewComp const& comp ///< Assignment reported by router.
+  ) const;
+protected:
+  /// Generate contents in HERE_I_AM @a msg for seed router.
+  void generateHereIAm(
+    HereIAmMsg& msg, ///< Message with allocated buffer.
+    GroupData& group ///< Group with data for message.
+  );
+  /// Generate contents in HERE_I_AM @a msg for active @a router.
+  void generateHereIAm(
+    HereIAmMsg& msg, ///< Message with allocated buffer.
+    GroupData& group, ///< Group with data for message.
+    RouterData& router ///< Target router.
+  );
+  /// Generate contents in REDIRECT_ASSIGN @a msg for a service @a group.
+  void generateRedirectAssign(
+    RedirectAssignMsg& msg, ///< Message with allocated buffer.
+    GroupData& group ///< Group with data for message.
+  );
+  /// Process HERE_I_AM message.
+  virtual ts::Errata handleISeeYou(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Buffer with message data.
+  );
+  /// Process REMOVAL_QUERY message.
+  virtual ts::Errata handleRemovalQuery(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Message data.
+  );
+
+  /// Map Service Group ID to Service Group Data.
+  typedef std::map<uint8_t, GroupData> GroupMap;
+  /// Active service groups.
+  GroupMap m_groups;
+};
+// ------------------------------------------------------
+namespace detail {
+  namespace router {
+    /** Router's view of a cache.
+        @a m_count tracks the number of packets received from this particular
+        cache. The RFC is unclear but it looks like this should be tracked
+        independently for each target address (which can be different than
+        caches if multicasting). A response is pending if @a m_count is
+        different than @ m_xmit.m_gen which is the received count last time
+        this router sent this cache a response.
+    */
+    struct CacheData {
+      /// Get the identifying IP address for this cache.
+      uint32_t idAddr() const;
+
+      /// Received count for this cache.
+      uint32_t m_recv_count;
+      /// Change number of last received message.
+      uint32_t m_generation;
+      /// Need to send a response to this cache.
+      bool m_pending;
+      /// Address used by cache to send to this router.
+      uint32_t m_to_addr;
+      /// Stamp for last pack transmitted to this cache.
+      PacketStamp m_xmit;
+      //// Stamp for last packet received from this cache.
+      PacketStamp m_recv;
+
+      CacheIdBox m_id; ///< Transmitted cache descriptor.
+      uint32_t m_target_addr; ///< Target address of last packet.
+    };
+
+    /// Router's view of other routers.
+    struct RouterData {
+      typedef RouterData self; ///< Self reference type.
+
+      /// Identifying IP address of router.
+      uint32_t m_addr;
+      /** Stamp for last mention of this router from a cache.
+          Indexed in parallel with the Caches.
+          The sequence number @a m_sn is the cache's change #.
+      */
+      std::vector<PacketStamp> m_src;
+      /// Resize the packet stamp vector.
+      self& resize(size_t);
+    };
+
+    /// Storage type for known caches.
+    typedef std::vector<CacheData> CacheBag;
+    /// Storage type for known routers.
+    typedef std::vector<RouterData> RouterBag;
+
+    /** A router's view of a service group.
+
+        This stores the internal accounting information, it is not the
+        serialized form.
+    */
+    struct GroupData : public detail::endpoint::GroupData {
+      typedef GroupData self; ///< Self reference type.
+      typedef detail::endpoint::GroupData super; ///< Parent type.
+
+      GroupData(); ///< Default constructor.
+
+      /// Known caches.
+      CacheBag m_caches;
+      /// Known (other) routers.
+      RouterBag m_routers;
+
+      /// Find a cache by IP @a addr.
+      /// @return An iterator to the cache, or @c NULL if not found.
+      CacheBag::iterator findCache(
+        uint32_t addr ///< IP address of cache.
+      );
+      /// Adjust packet stamp vectors to track caches.
+      void resizeRouterSources();
+    };
+  }
+}
+
+/** Implementation class for Router Endpoint.
+ */
+class RouterImpl : public Impl {
+public:
+  typedef RouterImpl self; ///< Self reference type.
+  typedef Impl super; ///< Parent type.
+  // Import details
+  typedef detail::router::CacheData CacheData;
+  typedef detail::router::RouterData RouterData;
+  typedef detail::router::GroupData GroupData;
+  typedef detail::router::CacheBag CacheBag;
+  typedef detail::router::RouterBag RouterBag;
+
+  /// Process HERE_I_AM message.
+  virtual ts::Errata handleHereIAm(
+    IpHeader const& header, ///< IP packet data.
+    ts::Buffer const& data ///< Buffer with message data.
+  );
+  /// Perform all scheduled housekeeping functions.
+  int housekeeping();
+  /// Send pending I_SEE_YOU messages.
+  int xmitISeeYou();
+  /// Check for configuration.
+  bool isConfigured() const;
+protected:
+
+  /** Find or create a service group record.
+      If no service is defined for the ID, it is created.
+      If @a result is not @c NULL then it is set to
+      - @c ServiceGroup::DEFINED if the service was created.
+      - @c ServiceGroup::EXISTS if the service matches the existing service.
+      - @c ServiceGroup::CONFLICT if the service doesn't match the existing service.
+
+      @return The data for the service group.
+  */
+  GroupData& defineServiceGroup(
+    ServiceGroup const& svc,
+    ServiceGroup::Result* result
+  );
+  /// Fill out message data.
+  void generateISeeYou(
+    ISeeYouMsg& msg, ///< Message structure to fill.
+    GroupData& group, ///< Group data for message.
+    CacheData& cache ///< Target cache.
+  );
+
+  /// Map Service Group ID to Service Group Data.
+  typedef std::map<uint8_t, GroupData> GroupMap;
+  /// Active service groups.
+  GroupMap m_groups;
+};
+// ------------------------------------------------------
+inline RouterId::RouterId() : m_addr(0), m_recv_id(0) { }
+inline RouterId::RouterId(uint32_t addr, uint32_t recv_id)
+  : m_addr(addr)
+  , m_recv_id(recv_id) {
+}
+
+inline RouterIdElt::RouterIdElt(uint32_t addr, uint32_t recv_id)
+  : super(addr, htonl(recv_id)) {
+}
+inline uint32_t RouterIdElt::getAddr() const { return m_addr; }
+inline RouterIdElt&
+RouterIdElt::setAddr(uint32_t addr) {
+  m_addr = addr;
+  return *this;
+}
+inline uint32_t RouterIdElt::getRecvId() const { return ntohl(m_recv_id); }
+inline RouterIdElt&
+RouterIdElt::setRecvId(uint32_t recv_id) {
+  m_recv_id = htonl(recv_id);
+  return *this;
+}
+inline RouterIdElt&
+RouterIdElt::operator = (super const& that) {
+  return this->setAddr(that.m_addr).setRecvId(that.m_recv_id);
+}
+
+inline MaskElt::MaskElt() { }
+
+inline MaskElt::MaskElt(
+    uint32_t srcAddr,
+    uint32_t dstAddr,
+    uint16_t srcPort,
+    uint16_t dstPort
+) : m_src_addr(srcAddr)
+  , m_dst_addr(dstAddr)
+  , m_src_port(srcPort)
+  , m_dst_port(dstPort) {
+}
+
+inline uint32_t MaskElt::getSrcAddr() const { return ntohl(m_src_addr); }
+inline MaskElt& MaskElt::setSrcAddr(uint32_t mask) { m_src_addr = htonl(mask); return *this; }
+inline uint32_t MaskElt::getDstAddr() const { return ntohl(m_dst_addr); }
+inline MaskElt& MaskElt::setDstAddr(uint32_t mask) { m_dst_addr = htonl(mask); return *this; }
+inline uint16_t MaskElt::getSrcPort() const { return ntohs(m_src_port); }
+inline MaskElt& MaskElt::setSrcPort(uint16_t mask) { m_src_port = htons(mask); return *this; }
+inline uint16_t MaskElt::getDstPort() const { return ntohs(m_dst_port);}
+inline MaskElt& MaskElt::setDstPort(uint16_t mask) { m_dst_port = htons(mask); return *this; }
+
+inline ValueElt::ValueElt() { }
+
+inline ValueElt::ValueElt(
+    uint32_t cacheAddr,
+    uint32_t srcAddr,
+    uint32_t dstAddr,
+    uint16_t srcPort,
+    uint16_t dstPort
+) : m_src_addr(srcAddr)
+  , m_dst_addr(dstAddr)
+  , m_src_port(srcPort)
+  , m_dst_port(dstPort)
+  , m_cache_addr(cacheAddr) {
+}
+
+inline MaskValueSetElt::MaskValueSetElt() { }
+inline MaskValueSetElt::MaskValueSetElt(uint32_t count) : m_count(count) { }
+inline MaskElt& MaskValueSetElt::maskElt() { return m_mask; }
+inline uint32_t MaskValueSetElt::getCount() const { return ntohl(m_count); }
+
+inline uint32_t
+MaskValueSetElt::getSrcAddrMask() const {
+  return m_mask.getSrcAddr();
+}
+inline MaskValueSetElt&
+MaskValueSetElt::setSrcAddrMask(uint32_t mask) {
+  m_mask.setSrcAddr(mask);
+  return *this;
+}
+inline uint32_t
+MaskValueSetElt::getDstAddrMask() const {
+  return m_mask.getDstAddr();
+}
+inline MaskValueSetElt&
+MaskValueSetElt::setDstAddrMask(uint32_t mask) {
+  m_mask.setDstAddr(mask);
+  return *this;
+}
+inline uint16_t
+MaskValueSetElt::getSrcPortMask() const {
+  return m_mask.getSrcPort();
+}
+inline MaskValueSetElt&
+MaskValueSetElt::setSrcPortMask(uint16_t mask) {
+  m_mask.setSrcPort(mask);
+  return *this;
+}
+inline uint16_t
+MaskValueSetElt::getDstPortMask() const {
+  return m_mask.getDstPort();
+}
+inline MaskValueSetElt&
+MaskValueSetElt::setDstPortMask(uint16_t mask) {
+  m_mask.setDstPort(mask);
+  return *this;
+}
+inline ValueElt*
+MaskValueSetElt::values() {
+  return reinterpret_cast<ValueElt*>(this+1);
+}
+inline ValueElt const*
+MaskValueSetElt::values() const {
+ return const_cast<self*>(this)->values();
+}
+inline size_t
+MaskValueSetElt::calcSize(uint32_t n) {
+  return sizeof(self) + n * sizeof(ValueElt);
+}
+inline size_t
+MaskValueSetElt::getSize() const {
+  return self::calcSize(ntohl(m_count));
+}
+
+inline size_t
+  MaskAssignElt::getSize() const { return sizeof(self) + this->getVarSize(); }
+
+inline uint32_t CacheIdElt::getAddr() const { return m_addr; }
+inline CacheIdElt&
+CacheIdElt::setAddr(uint32_t addr) {
+  m_addr = addr;
+  return *this;
+}
+inline uint16_t CacheIdElt::getHashRev() const { return ntohs(m_hash_rev); }
+inline CacheIdElt&
+CacheIdElt::setHashRev(uint16_t addr) {
+  m_hash_rev = htons(addr);
+  return *this;
+}
+inline CacheIdElt&
+CacheIdElt::initHashRev() {
+  this->setHashRev(HASH_REVISION);
+  return *this;
+}
+inline bool CacheIdElt::getUnassigned() const { return 1 == m_unassigned; }
+inline CacheIdElt&
+CacheIdElt::setUnassigned(bool state) {
+  m_unassigned = state ? 1 : 0;
+  return *this;
+}
+inline CacheIdElt&
+CacheIdElt::clearReserved() {
+  m_reserved_0 = 0;
+  m_reserved_1 = 0;
+  m_reserved_2 = 0;
+  return *this;
+}
+inline bool CacheIdElt::isMask() const { return 1 == m_is_mask; }
+inline CacheIdElt&
+CacheIdElt::setMask(bool state) {
+  m_is_mask = state ? 1 : 0;
+  return *this;
+}
+
+# if 0
+inline uint16_t CacheIdElt::getWeight() const { return ntohs(m_weight); }
+inline CacheIdElt&
+CacheIdElt::setWeight(uint16_t w) {
+  m_weight = htons(w);
+  return *this;
+}
+inline uint16_t CacheIdElt::getStatus() const { return ntohs(m_status); }
+inline CacheIdElt&
+CacheIdElt::setStatus(uint16_t s) {
+  m_status = htons(s);
+  return *this;
+}
+# endif
+
+inline CacheIdElt::Tail*
+CacheHashIdElt::getTailPtr() {
+  return &m_tail;
+}
+
+# if 0
+inline bool
+CacheHashIdElt::getBucket(int idx) const {
+  return 0 != (m_buckets[idx>>3] & (1<<(idx & 7)));
+}
+# endif
+
+inline uint32_t
+CacheMaskIdElt::getCount() const {
+  return m_assign.getCount();
+}
+
+inline size_t
+CacheMaskIdElt::getSize() const {
+  return sizeof(self) + sizeof(Tail) + m_assign.getVarSize();
+}
+
+inline CacheIdElt::Tail*
+CacheMaskIdElt::getTailPtr() {
+  return reinterpret_cast<Tail*>(
+    reinterpret_cast<char*>(this) + sizeof(self) + m_assign.getVarSize()
+  );
+}
+
+inline uint32_t
+CacheIdBox::getAddr() const {
+  return m_base->getAddr();
+}
+
+inline CacheIdBox&
+CacheIdBox::setAddr(uint32_t addr) {
+  m_base->setAddr(addr);
+  return *this;
+}
+
+inline CacheIdBox&
+CacheIdBox::setUnassigned(bool state) {
+  m_base->setUnassigned(state);
+  return *this;
+}
+
+inline AssignmentKeyElt::AssignmentKeyElt(
+  uint32_t addr,
+  uint32_t n
+)
+  : m_addr(addr)
+  , m_change_number(htonl(n)) {
+}
+inline uint32_t AssignmentKeyElt::getAddr() const { return m_addr; }
+inline AssignmentKeyElt&
+AssignmentKeyElt::setAddr(uint32_t addr) {
+  m_addr = addr;
+  return *this;
+}
+inline uint32_t
+AssignmentKeyElt::getChangeNumber() const {
+  return ntohl(m_change_number);
+}
+inline AssignmentKeyElt&
+AssignmentKeyElt::setChangeNumber(uint32_t n) {
+  m_change_number = htonl(n);
+  return *this;
+}
+
+inline RouterAssignElt::RouterAssignElt(
+  uint32_t addr,
+  uint32_t recv_id,
+  uint32_t change_number
+)
+  : super(addr, recv_id)
+  , m_change_number(htonl(change_number)) {
+}
+inline uint32_t
+RouterAssignElt::getChangeNumber() const {
+  return ntohl(m_change_number);
+}
+inline RouterAssignElt&
+RouterAssignElt::setChangeNumber(uint32_t n) {
+  m_change_number = htonl(n);
+  return *this;
+}
+
+inline SecurityComp::SecurityComp() : m_local_key(false) { }
+inline void SecurityComp::setDefaultOption(Option opt) {
+  m_default_opt = opt;
+}
+inline size_t
+SecurityComp::calcSize(Option opt) {
+  return SECURITY_NONE == opt ? sizeof(RawNone) : sizeof(RawMD5);
+}
+
+inline ServiceComp::ServiceComp () : m_port_count(0) { }
+inline ServiceComp::raw_t*
+ServiceComp::access() {
+  return reinterpret_cast<raw_t*>(m_base);
+}
+inline ServiceComp::raw_t const*
+ServiceComp::access() const {
+  return reinterpret_cast<raw_t const*>(m_base);
+}
+inline ServiceGroup::Type
+ServiceComp::getSvcType() const {
+  return this->access()->getSvcType();
+}
+inline ServiceComp&
+ServiceComp::setSvcType(ServiceGroup::Type t) {
+  this->access()->setSvcType(t);
+  return *this;
+}
+inline uint8_t
+ServiceComp::getSvcId() const {
+  return this->access()->getSvcId();
+}
+inline ServiceComp&
+ServiceComp::setSvcId(uint8_t id) {
+  this->access()->setSvcId(id);
+  return *this;
+}
+inline uint8_t
+ServiceComp::getPriority() const {
+  return this->access()->getPriority();
+}
+inline ServiceComp&
+ServiceComp::setPriority(uint8_t pri) {
+  this->access()->setPriority(pri);
+  return *this;
+}
+inline uint8_t
+ServiceComp::getProtocol() const {
+  return this->access()->getProtocol();
+}
+inline ServiceComp&
+ServiceComp::setProtocol(uint8_t proto) {
+  this->access()->setProtocol(proto);
+  return *this;
+}
+inline uint32_t
+ServiceComp::getFlags() const {
+  return this->access()->getFlags();
+}
+inline ServiceComp&
+ServiceComp::setFlags(uint32_t flags) {
+  this->access()->setFlags(flags);
+  return *this;
+}
+inline ServiceComp&
+ServiceComp::enableFlags(uint32_t flags) {
+  this->access()->enableFlags(flags);
+  return *this;
+}
+inline ServiceComp&
+ServiceComp::disableFlags(uint32_t flags) {
+  this->access()->disableFlags(flags);
+  return *this;
+}
+inline uint16_t
+ServiceComp::getPort (int idx) const {
+  return this->access()->getPort(idx);
+}
+inline size_t ServiceComp::calcSize() { return sizeof(raw_t); }
+inline
+ServiceComp::operator ServiceGroup const& () const {
+  return *static_cast<ServiceGroup const*>(this->access());
+}
+
+inline size_t
+RouterIdComp::calcSize(int n) {
+  return sizeof(raw_t) + n * sizeof(uint32_t);
+}
+
+inline uint32_t
+RouterViewComp::getKeyAddr() const {
+  return this->keyElt().getAddr();
+}
+inline RouterViewComp&
+RouterViewComp::setKeyAddr(uint32_t addr) {
+  this->keyElt().setAddr(addr);
+  return *this;
+}
+inline uint32_t
+RouterViewComp::getKeyChangeNumber() const {
+  return this->keyElt().getChangeNumber();
+}
+inline RouterViewComp&
+RouterViewComp::setKeyChangeNumber(uint32_t change_number) {
+  this->keyElt().setChangeNumber(change_number);
+  return *this;
+}
+inline CacheIdBox const&
+RouterViewComp::cacheId(int idx) const {
+  return const_cast<self*>(this)->cacheId(idx);
+}
+
+inline CacheIdBox& CacheIdComp::cacheId() { return m_box; }
+inline CacheIdBox const& CacheIdComp::cacheId() const { return m_box; }
+inline uint32_t
+CacheIdComp::getAddr() const {
+  return this->cacheId().getAddr();
+}
+inline CacheIdComp&
+CacheIdComp::setAddr(uint32_t addr) {
+  this->cacheId().setAddr(addr);
+  return *this;
+}
+inline uint16_t
+CacheIdComp::getHashRev() const {
+  return this->cacheId().getHashRev();
+}
+inline CacheIdComp&
+CacheIdComp::setHashRev(uint16_t rev) {
+  this->cacheId().setHashRev(rev);
+  return *this;
+}
+inline bool
+CacheIdComp::getUnassigned() const {
+  return this->cacheId().getUnassigned();
+}
+inline CacheIdComp&
+CacheIdComp::setUnassigned(bool state) {
+  this->cacheId().setUnassigned(state);
+  return *this;
+}
+# if 0
+inline uint16_t
+CacheIdComp::getWeight() const {
+  return this->idElt().getWeight();
+}
+inline CacheIdComp&
+CacheIdComp::setWeight(uint16_t w) {
+  this->idElt().setWeight(w);
+  return *this;
+}
+inline uint16_t
+CacheIdComp::getStatus() const {
+  return this->idElt().getStatus();
+}
+inline CacheIdComp&
+CacheIdComp::setStatus(uint16_t s) {
+  this->idElt().setStatus(s);
+  return *this;
+}
+inline bool
+CacheIdComp::getBucket(int idx) const {
+  return this->idElt().getBucket(idx);
+}
+inline CacheIdComp&
+CacheIdComp::setBucket(int idx, bool state) {
+  this->idElt().setBucket(idx, state);
+  return *this;
+}
+inline CacheIdComp&
+CacheIdComp::setBuckets(bool state) {
+  this->idElt().setBuckets(state);
+  return *this;
+}
+inline size_t CacheIdComp::calcSize() { return sizeof(raw_t); }
+# endif
+
+inline bool detail::Assignment::isActive() const { return m_active; }
+inline detail::Assignment&
+detail::Assignment::setActive(bool state) {
+  m_active = state;
+  return *this;
+}
+inline detail::Assignment&
+detail::Assignment::updateRouterId(uint32_t addr, uint32_t rcvid, uint32_t cno) {
+  if (m_router_list) m_router_list->updateRouterId(addr, rcvid, cno);
+  return *this;
+}
+inline AssignmentKeyElt::AssignmentKeyElt() { }
+inline AssignmentKeyElt const&
+detail::Assignment::getKey() const {
+  return m_key;
+}
+inline RouterAssignListElt const&
+detail::Assignment::getRouterList() const {
+  assert(m_router_list);
+  return *m_router_list;
+}
+inline HashAssignElt const&
+detail::Assignment::getHash() const {
+  assert(m_hash_assign);
+  return *m_hash_assign;
+}
+inline MaskAssignElt const&
+detail::Assignment::getMask() const {
+  assert(m_mask_assign);
+  return *m_mask_assign;
+}
+
+inline MsgBuffer::MsgBuffer() : super(0), _count(0) { }
+inline MsgBuffer::MsgBuffer(super const& that) : super(that), _count(0) { }
+inline MsgBuffer::MsgBuffer(void* p, size_t n)
+  : super(static_cast<char*>(p),n)
+  , _count(0) {
+}
+
+inline size_t MsgBuffer::getSize() const { return _size; }
+inline size_t MsgBuffer::getCount() const { return _count; }
+inline char* MsgBuffer::getBase() { return _ptr; }
+inline char const* MsgBuffer::getBase() const { return _ptr; }
+inline char* MsgBuffer::getTail() { return _ptr + _count; }
+inline size_t MsgBuffer::getSpace() const { return _size - _count; }
+inline MsgBuffer& MsgBuffer::reset() { _count = 0; return *this; }
+
+inline MsgBuffer& MsgBuffer::set(void *ptr, size_t n) {
+  _ptr = static_cast<char*>(ptr);
+  _size = n;
+  _count = 0;
+  return *this;
+}
+
+inline MsgBuffer&
+MsgBuffer::use(size_t n) {
+  _count += std::min(n, this->getSpace());
+  return *this;
+}
+
+inline MsgBuffer& MsgBuffer::zero() {
+  memset(_ptr, 0, _size);
+  _count = 0;
+  return *this;
+}
+
+inline PacketStamp::PacketStamp()
+  : m_time(0)
+  , m_sn(0) {
+}
+
+inline PacketStamp& PacketStamp::set(time_t time, uint32_t sn) {
+  m_time = time;
+  m_sn = sn;
+  return *this;
+}
+
+inline ServiceGroup::ServiceGroup() {
+}
+
+inline RouterIdElt::RouterIdElt() { }
+inline RouterAssignElt::RouterAssignElt() : m_change_number(0) { }
+
+inline RouterAssignListElt::RouterAssignListElt() {}
+inline RouterAssignListElt::RouterAssignListElt(int n) : m_count(htonl(n)) {}
+inline RouterAssignElt&
+RouterAssignListElt::elt(int n) {
+  return access_array<RouterAssignElt>(this + 1)[n];
+}
+inline RouterAssignElt const&
+RouterAssignListElt::elt(int n) const {
+  return const_cast<self*>(this)->elt(n);
+}
+inline size_t
+RouterAssignListElt::calcVarSize(int n) {
+  return n * sizeof(RouterAssignElt);
+}
+inline size_t
+RouterAssignListElt::calcSize(int n) {
+  return sizeof(self) + self::calcVarSize(n);
+}
+inline size_t
+RouterAssignListElt::getSize() const {
+  return this->calcSize(this->getCount());
+}
+inline size_t
+RouterAssignListElt::getVarSize() const {
+  return this->getSize() - sizeof(self);
+}
+inline uint32_t RouterAssignListElt::getCount() const { return ntohl(m_count); }
+
+inline HashAssignElt::HashAssignElt () { }
+inline HashAssignElt::HashAssignElt (int n) : m_count(htonl(n)) { }
+inline uint32_t HashAssignElt::getCount() const { return ntohl(m_count); }
+inline size_t
+HashAssignElt::calcSize(int n) {
+  return sizeof(self) + n * sizeof(uint32_t) + sizeof(Bucket) * N_BUCKETS;
+}
+inline size_t
+HashAssignElt::getSize() const {
+  return self::calcSize(this->getCount());
+}
+inline uint32_t
+HashAssignElt::getAddr(int idx) const {
+  return (&m_count)[idx+1];
+}
+inline HashAssignElt&
+HashAssignElt::setAddr(int idx, uint32_t addr) {
+  (&m_count)[idx+1] = addr;
+  return *this;
+}
+inline HashAssignElt::Bucket*
+HashAssignElt::getBucketBase() {
+  return reinterpret_cast<Bucket*>((&m_count + 1 + this->getCount()));
+}
+inline HashAssignElt::Bucket&
+HashAssignElt::operator [] (size_t idx) {
+  return this->getBucketBase()[idx];
+}
+inline HashAssignElt::Bucket const&
+HashAssignElt::operator [] (size_t idx) const {
+  return (*(const_cast<self*>(this)))[idx];
+}
+
+inline MaskAssignElt::MaskAssignElt() {}
+inline uint32_t MaskAssignElt::getCount() const { return ntohl(m_count); }
+inline MaskValueSetElt* MaskAssignElt::appender::operator -> () {
+  return m_set;
+}
+inline MaskValueSetElt* MaskAssignElt::appender::initSet(
+  uint32_t srcAddr,
+  uint32_t dstAddr,
+  uint16_t srcPort,
+  uint16_t dstPort
+) {
+  (*(new (m_set) MaskValueSetElt(0)))
+    .setSrcAddrMask(srcAddr)
+    .setDstAddrMask(dstAddr)
+    .setSrcPortMask(srcPort)
+    .setDstPortMask(dstPort)
+    ;
+  return m_set;
+}
+inline MaskValueSetElt* MaskAssignElt::appender::mask(
+  uint32_t srcAddr,
+  uint32_t dstAddr,
+  uint16_t srcPort,
+  uint16_t dstPort
+) {
+  m_set = reinterpret_cast<MaskValueSetElt*>(
+    reinterpret_cast<char*>(m_set) + m_set->getSize()
+  );
+  m_elt->m_count = htonl(1 + m_elt->getCount()); // bump set count.
+  this->initSet(srcAddr, dstAddr, srcPort, dstPort);
+  return m_set;
+}
+inline MaskAssignElt::appender
+MaskAssignElt::init(
+  uint32_t srcAddr,
+  uint32_t dstAddr,
+  uint16_t srcPort,
+  uint16_t dstPort
+) {
+  appender zret;
+  m_count = htonl(1);
+  zret.m_set = reinterpret_cast<MaskValueSetElt*>(this+1);
+  zret.m_elt = this;
+  zret.initSet(srcAddr, dstAddr, srcPort, dstPort);
+  return zret;
+}
+
+inline ComponentBase::ComponentBase() : m_base(0) { }
+inline bool ComponentBase::isEmpty() const { return 0 == m_base; }
+
+inline message_type_t MsgHeaderComp::toMsgType(int t) {
+  return HERE_I_AM != t
+    && I_SEE_YOU != t
+    && REDIRECT_ASSIGN != t
+    && REMOVAL_QUERY != t
+    ? INVALID_MSG_TYPE
+    : static_cast<message_type_t>(t)
+    ;
+}
+
+template < typename T > CompType
+CompWithHeader<T>::getType() const {
+  return static_cast<CompType>(
+    ntohs(reinterpret_cast<raw_t const*>(m_base)->m_type)
+  );
+}
+
+template < typename T > T&
+CompWithHeader<T>::setType(CompType t) {
+  reinterpret_cast<raw_t*>(m_base)->m_type = htons(t);
+  return static_cast<T&>(*this);
+}
+
+template < typename T > uint16_t
+CompWithHeader<T>::getLength() const {
+  return ntohs(
+    reinterpret_cast<raw_t const*>(m_base)->m_length
+  );
+}
+
+template < typename T > T&
+CompWithHeader<T>::setLength(uint16_t length) {
+  reinterpret_cast<raw_t*>(m_base)->m_length = htons(length);
+  return static_cast<T&>(*this);
+}
+
+template < typename T > int
+CompWithHeader<T>::checkHeader(MsgBuffer const& buffer, CompType ect) {
+  CompType act = this->getType();
+  if (act != ect)
+    return (act < COMP_TYPE_MIN || COMP_TYPE_MAX < act)
+      ? PARSE_COMP_TYPE_INVALID
+      : PARSE_COMP_OTHER_TYPE
+      ;
+  if (this->getLength() + sizeof(raw_t) > buffer.getSpace())
+    return PARSE_COMP_TOO_BIG;
+  return PARSE_SUCCESS;
+}
+
+inline AssignInfoComp::Bucket& AssignInfoComp::bucket(int idx) { return m_buckets[idx]; }
+inline AssignInfoComp::Bucket const& AssignInfoComp::bucket(int idx) const{ return m_buckets[idx]; }
+inline RouterViewComp::RouterViewComp()
+  : m_cache_count(0) {
+  memset(m_cache_ids, 0, sizeof(m_cache_ids));
+}
+
+inline CapComp::CapComp() : m_count(0), m_cached(false) { }
+inline CapComp& CapComp::invalidate() { m_cached = false; return *this; }
+inline uint32_t CapComp::getEltCount() const { return this->m_count; }
+inline size_t CapComp::calcSize(int n) { return sizeof(super::raw_t) + n * sizeof(CapabilityElt); }
+inline ServiceGroup::PacketStyle
+CapComp::getPacketForwardStyle() const {
+  if (!m_cached) this->cache();
+  return m_packet_forward;
+}
+inline ServiceGroup::PacketStyle
+CapComp::getPacketReturnStyle() const {
+  if (!m_cached) this->cache();
+  return m_packet_return;
+}
+inline ServiceGroup::CacheAssignmentStyle
+CapComp::getCacheAssignmentStyle() const {
+  if (!m_cached) this->cache();
+  return m_cache_assign;
+}
+
+inline AssignMapComp::AssignMapComp() { }
+
+/*  Implementation note: Due to a bug in gcc, we have to be
+    careful with these fields. If we use the field access templates
+    directly, we get bad results because the pointer to member matching
+    is done incorrectly (it uses a super type, not @c raw_t). We work
+    around this by putting the pointer to member in a static variable.
+*/
+inline uint16_t
+AltAssignComp::getAssignType() const {
+  static uint16_t raw_t::*mptr = &raw_t::m_assign_type;
+  return get_field(mptr, m_base);
+}
+inline AltAssignComp&
+AltAssignComp::setAssignType(uint16_t t) {
+  static uint16_t raw_t::*mptr = &raw_t::m_assign_type;
+  set_field(mptr, m_base, t);
+  return *this;
+}
+inline uint16_t
+AltAssignComp::getAssignLength() const {
+  static uint16_t raw_t::*mptr = &raw_t::m_assign_length;
+  return get_field(mptr, m_base);
+}
+inline AltAssignComp&
+AltAssignComp::setAssignLength(uint16_t length) {
+  static uint16_t raw_t::*mptr = &raw_t::m_assign_length;
+  set_field(mptr, m_base, length);
+  return *this;
+}
+
+inline uint32_t QueryComp::getRouterAddr() const {
+  return access_field(&raw_t::m_router_addr, m_base);
+}
+inline QueryComp& QueryComp::setRouterAddr(uint32_t addr) {
+  access_field(&raw_t::m_router_addr, m_base) = addr;
+  return *this;
+}
+inline uint32_t QueryComp::getToAddr() const {
+  return access_field(&raw_t::m_to_addr, m_base);
+}
+inline QueryComp& QueryComp::setToAddr(uint32_t addr) {
+  access_field(&raw_t::m_to_addr, m_base) = addr;
+  return *this;
+}
+inline uint32_t QueryComp::getCacheAddr() const {
+  return access_field(&raw_t::m_cache_addr, m_base);
+}
+inline QueryComp& QueryComp::setCacheAddr(uint32_t addr) {
+  access_field(&raw_t::m_cache_addr, m_base) = addr;
+  return *this;
+}
+inline uint32_t QueryComp::getRecvId() const {
+  return get_field(&raw_t::m_recv_id, m_base);
+}
+inline QueryComp& QueryComp::setRecvId(uint32_t data) {
+  set_field(&raw_t::m_recv_id, m_base, data);
+  return *this;
+}
+inline size_t QueryComp::calcSize() { return sizeof(raw_t); }
+
+inline detail::cache::SeedRouter::SeedRouter() { }
+
+inline detail::cache::SeedRouter::SeedRouter(uint32_t addr)
+  : m_addr(addr)
+  , m_count(0)
+  , m_xmit(0) {
+}
+
+inline BaseMsg::BaseMsg() : m_buffer(0,0) { }
+inline MsgBuffer const& BaseMsg::buffer() const { return m_buffer; }
+inline size_t BaseMsg::getSpace() const { return m_buffer.getSpace(); }
+inline size_t BaseMsg::getCount() const { return m_buffer.getCount(); }
+
+inline RouterImpl::RouterData&
+RouterImpl::RouterData::resize(size_t n) {
+  m_src.resize(n);
+  return *this;
+}
+// ------------------------------------------------------
+
+} // namespace wccp
+
+# endif // TS_WCCP_LOCAL_HEADER
diff --git a/lib/wccp/WccpMeta.h b/lib/wccp/WccpMeta.h
new file mode 100644
index 00000000..be85c93f
--- /dev/null
+++ b/lib/wccp/WccpMeta.h
@@ -0,0 +1,203 @@
+# if !defined(TS_WCCP_META_HEADER)
+# define TS_WCCP_META_HEADER
+
+/** @file
+    Meta programming support for WCCP.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+#include <algorithm>
+
+// Various meta programming efforts. Experimental at present.
+
+namespace ts {
+
+// Some support templates so we can fail to compile if the
+// compile time check fails.
+
+// This creates the actual error, depending on whether X has a valid
+// nest type Result.
+template < typename X > struct TEST_RESULT { typedef typename X::Result type; };
+
+// Bool checking - a base template then specializations to succeed or
+// fail.
+template < bool VALUE > struct TEST_BOOL { };
+// Successful test defines Result.
+template <> struct TEST_BOOL<true> { typedef int Result; };
+// Failing test does not define Result.
+template <> struct TEST_BOOL<false> { };
+
+// Fail to compile if VALUE is not true.
+template < bool VALUE > struct TEST_IF_TRUE
+  : public TEST_RESULT< TEST_BOOL< VALUE > > {
+};
+
+// Helper for assigning a value to all instances in a container.
+template < typename T , typename R, typename A1 >
+struct TsAssignMember : public std::binary_function<T, A1, R> {
+  R T::*_m;
+  A1 _arg1;
+  TsAssignMember(R T::*m, A1 const& arg1) : _m(m), _arg1(arg1) { }
+  R operator () (T& t) const { return t.*_m = _arg1; }
+};
+
+// Helper function to compute types for TsAssignMember.
+template < typename T, typename R, typename A1 > struct TsAssignMember<T,R,A1> assign_member(R T::*m, A1 const& arg1) { return TsAssignMember<T,R,A1>(m,arg1); }
+
+// Overload for_each to operate on a container.
+template < typename C, typename F > void for_each(C& c, F const& f) { std::for_each(c.begin(), c.end(), f); }
+
+/** Calc minimal value over a direct type container.
+    This handles an accessor that takes a argument.
+*/
+template < typename C, typename V, typename ARG1 > V
+minima(C const& c,  V (C::value_type::*ex)(ARG1) const, ARG1 const& arg1) {
+  V v = std::numeric_limits<V>::max();
+  for ( typename C::const_iterator spot = c.begin(), limit = c.end();
+        spot != limit;
+        ++spot
+  ) {
+    v = std::min(v, ((*spot).*ex)(arg1) );
+  }
+  return v;
+}
+
+/** Calc minimal value over a paired type container.
+    This handles an accessor that takes a argument.
+*/
+template < typename C, typename V, typename ARG1 > V
+minima(C const& c,  V (C::value_type::second_type::*ex)(ARG1) const, ARG1 const& arg1) {
+  V v = std::numeric_limits<V>::max();
+  for ( typename C::const_iterator spot = c.begin(), limit = c.end();
+        spot != limit;
+        ++spot
+  ) {
+    v = std::min(v, ((spot->second).*ex)(arg1) );
+  }
+  return v;
+}
+
+/** Apply a unary method to every object in a direct container.
+*/
+template < typename C, typename V, typename ARG1 > void
+for_each(C& c,  V (C::value_type::*ex)(ARG1), ARG1 const& arg1) {
+  for ( typename C::iterator spot = c.begin(), limit = c.end();
+        spot != limit;
+        ++spot
+  ) ((*spot).*ex)(arg1);
+}
+
+/** Apply a unary method to every object in a paired container.
+*/
+template < typename C, typename V, typename ARG1 > void
+for_each(C& c,  V (C::value_type::second_type::*ex)(ARG1) const, ARG1 const& arg1) {
+  for ( typename C::iterator spot = c.begin(), limit = c.end();
+        spot != limit;
+        ++spot
+  ) ((spot->second).*ex)(arg1);
+}
+
+template <
+  typename Elt, ///< Element type.
+  typename Value ///< Member value type.
+> struct MemberPredicate {
+  Value const& m_value; ///< Value to test against.
+  Value Elt::*m_mptr; ///< Pointer to member to test.
+  MemberPredicate(Value Elt::*mptr, Value const& v)
+    : m_value(v)
+    , m_mptr(mptr) {
+  }
+  bool operator () (Elt const& elt) const {
+    return elt.*m_mptr == m_value;
+  }
+};
+
+template < typename T, typename V > MemberPredicate<T,V>
+predicate(V T::*m, V const& v) {
+  return MemberPredicate<T,V>(m, v);
+}
+
+template <
+  typename Elt, ///< Element type.
+  typename Value ///< Member value type.
+> struct MethodPredicate {
+  typedef Value (Elt::*MethodPtr)() const;
+  Value const& m_value; ///< Value to test against.
+  MethodPtr m_mptr; ///< Pointer to method returning value.
+  MethodPredicate(MethodPtr mptr , Value const& v)
+    : m_value(v)
+    , m_mptr(mptr) {
+  }
+  bool operator () (Elt const& elt) const {
+    return (elt.*m_mptr)() == m_value;
+  }
+};
+
+template < typename T, typename V > MethodPredicate<T,V>
+predicate(V (T::*m)() const, V const& v) {
+  return MethodPredicate<T,V>(m, v);
+}
+
+# if 0
+
+/// Accumulate a minimum value when called repeated on different objects.
+template < 
+  typename V, ///< Value type.
+  typename T, ///< Object type
+  typename F ///< Extractor type.
+> struct MinimaFunctor :  public std::unary_function<T, void> {
+  V& m_result; ///< Result value.
+  F m_extractor; ///< Extraction functor.
+  /// Constructor.
+MinimaFunctor(F const& f, V& v) : m_result(v), m_extractor(f) { }
+  /// Extract a value and accumulate the minimum.
+  void operator () (T const& obj) const {
+    m_result = std::min(m_result, m_extractor(obj));
+  }
+};
+
+// Working on a more general mechanism by starting with more specific
+// ones to see the pattern.
+
+template <
+  typename R, ///< Return type.
+  typename T, ///< Object type.
+  typename ARG1 ///< Bound argument type.
+> struct BinderConstMethodArg1ToNullary : std::unary_function<T, R> {
+  typedef R (T::*F)(ARG1) const; /// Method type.
+  F m_method; ///< The actual method.
+  ARG1 m_arg1; ///< Bound argument.
+  /// Constructor.
+  BinderConstMethodArg1ToNullary(
+    F const& f, ///< Pointer to  method.
+    ARG1 const& arg1 ///< Argument to bind.
+  ) : m_method(f), m_arg1(arg1) {
+  }
+  /// Call the method.
+  R operator () (T const& obj) const {
+    return (obj.*m_method)(m_arg1);
+  }
+};
+
+# endif
+
+} // namespace ts
+
+# endif // TS_WCCP_META_HEADER
diff --git a/lib/wccp/WccpMsg.cc b/lib/wccp/WccpMsg.cc
new file mode 100644
index 00000000..0ce41f6d
--- /dev/null
+++ b/lib/wccp/WccpMsg.cc
@@ -0,0 +1,1783 @@
+/** @file
+    WCCP Message parsing and generation.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "WccpLocal.h"
+# include <errno.h>
+# include <openssl/md5.h>
+# include <TsException.h>
+# include "ink_memory.h"
+# include "ink_string.h"
+
+namespace wccp {
+// ------------------------------------------------------
+// ------------------------------------------------------
+ServiceGroup&
+ServiceGroup::setSvcType(ServiceGroup::Type t) {
+  if (STANDARD == t) {
+    // For standard service, everything past ID must be zero.
+    memset(&m_priority, 0,
+      sizeof(this) - (
+        reinterpret_cast<char*>(&m_priority) - reinterpret_cast<char*>(this)
+      )
+    );
+  }
+  m_svc_type = t; // store actual type.
+  return *this;
+}
+
+bool
+ServiceGroup::operator == (self const& that) const {
+  if (m_svc_type == STANDARD) {
+    // If type are different, fail, else if both are STANDARD
+    // then we need only match on the ID.
+    return that.m_svc_type == STANDARD && m_svc_id == that.m_svc_id;
+  } else if (that.m_svc_type != DYNAMIC) {
+    return false;
+  } else {
+    // Both services are DYNAMIC, check the properties.
+    // Port check is technically too strict -- should ignore
+    // ports beyond the terminating null port. Oh well.
+    return m_svc_id == that.m_svc_id
+      && m_protocol == that.m_protocol
+      && m_flags == that.m_flags
+      && m_priority == that.m_priority
+      && 0 == memcmp(m_ports, that.m_ports, sizeof(m_ports))
+      ;
+  }
+}
+// ------------------------------------------------------
+// ------------------------------------------------------
+CacheHashIdElt&
+CacheHashIdElt::setBucket(int idx, bool state) {
+  uint8_t& bucket = m_buckets[idx>>3];
+  uint8_t mask = 1 << (idx & 7);
+  if (state) bucket |= mask;
+  else bucket &= !mask;
+  return *this;
+}
+
+CacheHashIdElt&
+CacheHashIdElt::setBuckets(bool state) {
+  memset(m_buckets, state ? 0xFF : 0, sizeof(m_buckets));
+  return *this;
+}
+
+CacheIdBox::CacheIdBox()
+  : m_base(0)
+  , m_tail(0)
+  , m_size(0)
+  , m_cap(0) {
+}
+
+size_t CacheIdBox::getSize() const { return m_size; }
+
+CacheIdBox&
+CacheIdBox::require(size_t n) {
+  if (m_cap < n) {
+    if (m_base && m_cap)
+      ats_free(m_base);
+    m_base = static_cast<CacheIdElt*>(ats_malloc(n));
+    m_cap = n;
+  }
+  memset(m_base, 0, m_cap);
+  m_size = 0;
+  return *this;
+}
+
+CacheIdBox&
+CacheIdBox::initDefaultHash(uint32_t addr) {
+  this->require(sizeof(CacheHashIdElt));
+  m_size = sizeof(CacheHashIdElt);
+  m_base->initHashRev().setUnassigned(true).setMask(false).setAddr(addr);
+  m_tail = static_cast<CacheHashIdElt*>(m_base)->getTailPtr();
+  m_tail->m_weight = htons(0);
+  m_tail->m_status = htons(0);
+  return *this;
+}
+
+CacheIdBox&
+CacheIdBox::initDefaultMask(uint32_t addr) {
+  // Base element plus set with 1 value plus tail.
+  this->require(sizeof(CacheMaskIdElt) + MaskValueSetElt::calcSize(1) + sizeof(CacheIdElt::Tail));
+  CacheMaskIdElt* mid = static_cast<CacheMaskIdElt*>(m_base);
+  mid->initHashRev().setUnassigned(true).setMask(true).setAddr(addr);
+  mid->m_assign.init(0,0,0,0)->addValue(addr, 0, 0, 0, 0);
+  m_size = mid->getSize();
+  m_tail = mid->getTailPtr();
+  m_tail->m_weight = htons(0);
+  m_tail->m_status = htons(0);
+  return *this;
+}
+
+CacheIdBox&
+CacheIdBox::fill(self const& src) {
+  size_t n = src.getSize();
+  this->require(src.getSize());
+  memcpy(m_base, src.m_base, n);
+  m_size = src.m_size;
+  // If tail is set in src, use the same offset here.
+  if (src.m_tail)
+    m_tail = reinterpret_cast<CacheIdElt::Tail*>(
+      reinterpret_cast<char*>(m_base) + (
+        reinterpret_cast<char*>(src.m_tail)
+        - reinterpret_cast<char*>(src.m_base)
+    ));
+  else m_tail = 0;
+  return *this;
+}
+
+CacheIdBox&
+CacheIdBox::fill(void* base, self const& src) {
+  m_size = src.getSize();
+  m_cap = 0;
+  m_base = static_cast<CacheIdElt*>(base);
+  memcpy(m_base, src.m_base, m_size);
+  return *this;
+}
+
+int
+CacheIdBox::parse(MsgBuffer base) {
+  int zret = PARSE_SUCCESS;
+  CacheIdElt* ptr = reinterpret_cast<CacheIdElt*>(base.getTail());
+  size_t n = base.getSpace();
+  m_cap = 0;
+  if (ptr->isMask()) {
+    CacheMaskIdElt* mptr = static_cast<CacheMaskIdElt*>(ptr);
+    size_t size = sizeof(CacheMaskIdElt);
+    // Sanity check - verify enough room for empty elements.
+    if (n < size
+      || n < size + MaskValueSetElt::calcSize(0) * mptr->getCount()) {
+      zret = PARSE_BUFFER_TOO_SMALL;
+    } else {
+      m_size = mptr->getSize();
+      if (n < m_size) {
+        zret = PARSE_BUFFER_TOO_SMALL;
+        logf(LVL_DEBUG, "I_SEE_YOU Cache Mask ID too small: %lu < %lu", n, m_size);
+      } else {
+        m_tail = mptr->getTailPtr();
+      }
+    }
+  } else {
+    if (n < sizeof(CacheHashIdElt)) {
+      zret = PARSE_BUFFER_TOO_SMALL;
+      logf(LVL_DEBUG, "I_SEE_YOU Cache Hash ID too small: %lu < %lu", n, sizeof(CacheHashIdElt));
+    } else {
+      m_size = sizeof(CacheHashIdElt);
+      m_tail = static_cast<CacheHashIdElt*>(m_base)->getTailPtr();
+    }
+  }
+  if (PARSE_SUCCESS == zret) m_base = ptr;
+  return zret;
+}
+// ------------------------------------------------------
+inline CapabilityElt::Type
+CapabilityElt::getCapType() const {
+  return static_cast<Type>(ntohs(m_cap_type));
+}
+
+inline CapabilityElt&
+CapabilityElt::setCapType(Type cap) {
+  m_cap_type = htons(cap);
+  return *this;
+}
+
+inline uint32_t
+CapabilityElt::getCapData() const {
+  return ntohl(m_cap_data);
+}
+
+inline CapabilityElt&
+CapabilityElt::setCapData(uint32_t data) {
+  m_cap_data = htonl(data);
+  return *this;
+}
+
+CapabilityElt::CapabilityElt() {
+}
+
+CapabilityElt::CapabilityElt(Type cap, uint32_t data) {
+  this->setCapType(cap);
+  this->setCapData(data);
+  m_cap_length = htons(sizeof(uint32_t));
+}
+// ------------------------------------------------------
+inline uint32_t
+ValueElt::getf_src_addr() const {
+  return ntohl(m_src_addr);
+}
+
+inline ValueElt&
+ValueElt::setf_src_addr(uint32_t addr) {
+  m_src_addr = htonl(addr);
+  return *this;
+}
+
+inline uint32_t
+ValueElt::getDstAddr() const {
+  return ntohl(m_dst_addr);
+}
+
+inline ValueElt&
+ValueElt::setf_dst_addr(uint32_t addr) {
+  m_dst_addr = htonl(addr);
+  return *this;
+}
+
+inline uint16_t
+ValueElt::getf_src_port() const {
+  return ntohs(m_src_port);
+}
+
+inline ValueElt&
+ValueElt::setf_src_port(uint16_t port) {
+  m_src_port = htons(port);
+  return *this;
+}
+
+inline uint16_t
+ValueElt::getDstPort() const {
+  return ntohs(m_dst_port);
+}
+
+inline ValueElt&
+ValueElt::setf_dst_port(uint16_t port) {
+  m_dst_port = htons(port);
+  return *this;
+}
+
+inline uint32_t
+ValueElt::getCacheAddr() const {
+  return ntohl(m_cache_addr);
+}
+
+inline ValueElt&
+ValueElt::setCacheAddr(uint32_t addr) {
+  m_cache_addr = htonl(addr);
+  return *this;
+}
+// ------------------------------------------------------
+MaskValueSetElt&
+MaskValueSetElt::addValue(
+  uint32_t cacheAddr,
+  uint32_t srcAddr,
+  uint32_t dstAddr,
+  uint16_t srcPort,
+  uint16_t dstPort
+) {
+  uint32_t idx = ntohl(m_count);
+  new (this->values() + idx) ValueElt(cacheAddr, srcAddr, dstAddr, srcPort, dstPort);
+  m_count = htonl(idx + 1);
+  return *this;
+}
+
+size_t
+MaskAssignElt::getVarSize() const {
+  size_t zret = 0;
+  int n = this->getCount();
+
+  MaskValueSetElt const* set = reinterpret_cast<MaskValueSetElt const*>(this+1);
+  while (n--) {
+    size_t k = set->getSize();
+    zret += k;
+    set = reinterpret_cast<MaskValueSetElt const*>(
+      reinterpret_cast<char const*>(set) + k
+    );
+  }
+  return zret;
+}
+
+HashAssignElt&
+HashAssignElt::round_robin_assign() {
+  uint32_t v_caches = this->getCount();
+  Bucket* buckets = this->getBucketBase();
+  if (1 == v_caches) memset(buckets, 0, sizeof(Bucket) * N_BUCKETS);
+  else { // Assign round robin.
+    size_t x = 0;
+    for ( Bucket *spot = buckets, *limit = spot + N_BUCKETS;
+          spot < limit;
+          ++spot
+    ) {
+      spot->m_idx = x;
+      spot->m_alt = 0;
+      x = ( x + 1 ) % v_caches;
+    }
+  }
+  return *this;
+}
+
+RouterAssignListElt&
+RouterAssignListElt::updateRouterId(uint32_t addr, uint32_t rcvid, uint32_t cno) {
+  uint32_t n = this->getCount();
+  RouterAssignElt* elt = access_array<RouterAssignElt>(this+1);
+  for ( uint32_t i = 0 ; i < n ; ++i, ++elt ) {
+    if (addr == elt->getAddr()) {
+      elt->setChangeNumber(cno).setRecvId(rcvid);
+      break;
+    }
+  }
+  return *this;
+}
+// ------------------------------------------------------
+message_type_t
+MsgHeaderComp::getType() {
+  return static_cast<message_type_t>(get_field(&raw_t::m_type, m_base));
+}
+
+uint16_t
+MsgHeaderComp::getVersion() {
+  return get_field(&raw_t::m_version, m_base);
+}
+
+uint16_t
+MsgHeaderComp::getLength() {
+  return get_field(&raw_t::m_length, m_base);
+}
+
+MsgHeaderComp&
+MsgHeaderComp::setType(message_type_t type) {
+  set_field(&raw_t::m_type, m_base, type);
+  return *this;
+}
+
+MsgHeaderComp&
+MsgHeaderComp::setVersion(uint16_t version) {
+  set_field(&raw_t::m_version, m_base, version);
+  return *this;
+}
+
+MsgHeaderComp&
+MsgHeaderComp::setLength(uint16_t length) {
+  set_field(&raw_t::m_length, m_base, length);
+  return *this;
+}
+
+size_t
+MsgHeaderComp::calcSize() {
+  return sizeof(raw_t);
+}
+
+MsgHeaderComp&
+MsgHeaderComp::fill(MsgBuffer& buffer, message_type_t t) {
+  size_t comp_size = this->calcSize();
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+  m_base = buffer.getTail();
+  buffer.use(comp_size);
+  this->setType(t).setVersion(VERSION).setLength(0);
+  return *this;
+}
+
+int
+MsgHeaderComp::parse(MsgBuffer& base) {
+  int zret = PARSE_SUCCESS;
+  size_t comp_size = this->calcSize();
+  if (base.getSpace() < comp_size) {
+    zret = PARSE_BUFFER_TOO_SMALL;
+  } else {
+    m_base = base.getTail();
+    // Length field puts end of message past end of buffer.
+    if (this->getLength() + comp_size > base.getSpace()) {
+      zret = PARSE_MSG_TOO_BIG;
+    } else if (INVALID_MSG_TYPE == this->toMsgType(get_field(&raw_t::m_type, m_base))
+    ) {
+      zret = PARSE_COMP_TYPE_INVALID;
+    } else {
+      base.use(comp_size);
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+SecurityComp::Key SecurityComp::m_default_key;
+SecurityComp::Option SecurityComp::m_default_opt = SECURITY_NONE;
+
+SecurityComp::Option
+SecurityComp::getOption() const {
+  return static_cast<Option>(get_field(&RawNone::m_option, m_base));
+}
+
+SecurityComp&
+SecurityComp::setOption(Option opt) {
+  set_field(&RawNone::m_option, m_base, static_cast<uint32_t>(opt));
+  return *this;
+}
+
+SecurityComp&
+SecurityComp::setKey(char const* key) {
+  m_local_key = true;
+  strncpy(m_key, key, KEY_SIZE);
+  return *this;
+}
+
+void
+SecurityComp::setDefaultKey(char const* key) {
+  strncpy(m_default_key, key, KEY_SIZE);
+}
+
+SecurityComp&
+SecurityComp::fill(MsgBuffer& buffer, Option opt) {
+  size_t comp_size = this->calcSize(opt);
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+ 
+  this->setType(COMP_TYPE)
+    .setLength(comp_size - sizeof(super::raw_t))
+    .setOption(opt)
+    ;
+
+  if (SECURITY_NONE != opt) {
+    RawMD5::HashData& data = access_field(&RawMD5::m_data, m_base); 
+    memset(data, 0, sizeof(data));
+  }
+
+  buffer.use(comp_size);
+  return *this;
+}
+
+SecurityComp&
+SecurityComp::secure(MsgBuffer const& msg) {
+  if (SECURITY_MD5 == this->getOption()) {
+    MD5_CTX ctx;
+    char const* key = m_local_key ? m_key : m_default_key;
+    MD5_Init(&ctx);
+    MD5_Update(&ctx, key, KEY_SIZE);
+    MD5_Update(&ctx, msg.getBase(), msg.getCount());
+    MD5_Final(access_field(&RawMD5::m_data, m_base), &ctx);
+  }
+  return *this;
+}
+
+bool
+SecurityComp::validate(MsgBuffer const& msg) const {
+  bool zret = true;
+  if (SECURITY_MD5 == this->getOption()) {
+    RawMD5::HashData save;
+    RawMD5::HashData& org = const_cast<RawMD5::HashData&>(access_field(&RawMD5::m_data, m_base));
+    MD5_CTX ctx;
+    char const* key = m_local_key ? m_key : m_default_key;
+    // save the original hash aside.
+    memcpy(save, org, sizeof(save));
+    // zero out the component hash area to compute the hash.
+    memset(org, 0, sizeof(org));
+    // Compute hash in to hash area.
+    MD5_Init(&ctx);
+    MD5_Update(&ctx, key, KEY_SIZE);
+    MD5_Update(&ctx, msg.getBase(), msg.getCount());
+    MD5_Final(org, &ctx);
+    // check hash.
+    zret = 0 == memcmp(org, save, sizeof(save));
+    // restore original data.
+    memcpy(org, save, sizeof(save));
+  }
+  return zret;
+}
+
+int
+SecurityComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      Option opt = this->getOption();
+      if (SECURITY_NONE != opt && SECURITY_MD5 != opt)
+        zret = PARSE_COMP_INVALID;
+      else {
+        size_t comp_size = this->calcSize(opt);
+        if (this->getLength() != comp_size - sizeof(super::raw_t))
+          zret = PARSE_COMP_WRONG_SIZE;
+        else
+          buffer.use(comp_size);
+      }
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+
+ServiceComp&
+ServiceComp::setPort(int idx, uint16_t port) {
+  this->access()->setPort(idx, port);
+  m_port_count = std::max(m_port_count, idx);
+  return *this;
+}
+
+ServiceComp&
+ServiceComp::addPort(uint16_t port) {
+  if (m_port_count < static_cast<int>(ServiceGroup::N_PORTS))
+    this->access()->setPort(m_port_count++, port);
+  return *this;
+}
+
+ServiceComp&
+ServiceComp::clearPorts() {
+  this->access()->clearPorts();
+  m_port_count = 0;
+  return *this;
+}
+
+ServiceComp&
+ServiceComp::fill(MsgBuffer& buffer, ServiceGroup const& svc) {
+  size_t comp_size = this->calcSize();
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE).setLength(comp_size - sizeof(super::raw_t));
+
+  // Cast buffer to our serialized type, then cast to ServiceGroup
+  // to get offset of that part of the serialization storage.
+  memcpy(
+    // This generates a gcc warning, but the next line doesn't. Yay.
+//    static_cast<ServiceGroup*>(reinterpret_cast<raw_t*>(m_base)),
+    &static_cast<ServiceGroup&>(*reinterpret_cast<raw_t*>(m_base)),
+    &svc,
+    sizeof(svc)
+  );
+  buffer.use(comp_size);
+  return *this;
+}
+
+int
+ServiceComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  size_t comp_size = this->calcSize();
+  if (buffer.getSpace() < comp_size) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      ServiceGroup::Type svc  = this->getSvcType();
+      if (ServiceGroup::DYNAMIC != svc && ServiceGroup::STANDARD != svc)
+        zret = PARSE_COMP_INVALID;
+      else if (this->getLength() != comp_size - sizeof(super::raw_t))
+        zret = PARSE_COMP_WRONG_SIZE;
+      else
+        buffer.use(comp_size);
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+RouterIdElt&
+RouterIdComp::idElt() {
+  return access_field(&raw_t::m_id, m_base);
+}
+
+RouterIdElt const&
+RouterIdComp::idElt() const {
+  return access_field(&raw_t::m_id, m_base);
+}
+
+RouterIdComp&
+RouterIdComp::setIdElt(uint32_t addr, uint32_t recv_id) {
+  this->idElt().setAddr(addr).setRecvId(recv_id);
+  return *this;
+}
+
+uint32_t RouterIdComp::getAddr() const { return this->idElt().getAddr(); }
+
+RouterIdComp&
+RouterIdComp::setAddr(uint32_t addr) {
+  this->idElt().setAddr(addr);
+  return *this;
+}
+
+uint32_t RouterIdComp::getRecvId() const { return this->idElt().getRecvId();}
+inline RouterIdComp&
+RouterIdComp::setRecvId(uint32_t id) {
+  this->idElt().setRecvId(id);
+  return *this;
+}
+
+uint32_t
+RouterIdComp::getToAddr() const {
+  return access_field(&raw_t::m_to_addr, m_base);
+}
+
+RouterIdComp&
+RouterIdComp::setToAddr(uint32_t addr) {
+  access_field(&raw_t::m_to_addr, m_base) = addr;
+  return *this;
+}
+
+uint32_t
+RouterIdComp::getFromCount() const {
+  return get_field(&raw_t::m_from_count, m_base);
+}
+
+uint32_t
+RouterIdComp::getFromAddr(int idx) const {
+  return access_array<uint32_t>(m_base + sizeof(raw_t))[idx];
+}
+
+RouterIdComp&
+RouterIdComp::setFromAddr(int idx, uint32_t addr) {
+  access_array<uint32_t>(m_base + sizeof(raw_t))[idx] =  addr;
+  return *this;
+}
+
+int
+RouterIdComp::findFromAddr(uint32_t addr) {
+  int n = this->getFromCount();
+  uint32_t* addrs = access_array<uint32_t>(m_base + sizeof(raw_t)) + n;
+  while (n-- != 0 && *--addrs != addr)
+    ;
+  return n;
+}
+
+RouterIdComp&
+RouterIdComp::fill(MsgBuffer& buffer, size_t n_caches) {
+  size_t comp_size = this->calcSize(n_caches);
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE);
+  set_field(&raw_t::m_from_count, m_base, n_caches);
+  this->setLength(comp_size - sizeof(super::raw_t));
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+RouterIdComp&
+RouterIdComp::fillSingleton(
+  MsgBuffer& buffer,
+  uint32_t addr,
+  uint32_t recv_count,
+  uint32_t to_addr,
+  uint32_t from_addr
+) {
+  size_t comp_size = this->calcSize(1);
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE)
+    .setIdElt(addr, recv_count)
+    .setToAddr(to_addr)
+    .setFromAddr(0, from_addr)
+    ;
+
+  set_field(&raw_t::m_from_count, m_base, 1);
+
+  this->setLength(comp_size - sizeof(super::raw_t));
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+RouterIdComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret) {
+      size_t comp_size = this->calcSize(this->getFromCount());
+      if (this->getLength() != comp_size - sizeof(super::raw_t))
+        zret = PARSE_COMP_WRONG_SIZE;
+      else
+        buffer.use(comp_size);
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+AssignmentKeyElt&
+RouterViewComp::keyElt() {
+  return access_field(&raw_t::m_key, m_base);
+}
+
+AssignmentKeyElt const&
+RouterViewComp::keyElt() const {
+  return access_field(&raw_t::m_key, m_base);
+}
+
+uint32_t
+RouterViewComp::getChangeNumber() const {
+  return get_field(&raw_t::m_change_number, m_base);
+}
+
+RouterViewComp&
+RouterViewComp::setChangeNumber(uint32_t n) {
+  set_field(&raw_t::m_change_number, m_base, n);
+  return *this;
+}
+  
+uint32_t
+RouterViewComp::getCacheCount() const {
+  return ntohl(*m_cache_count);
+}
+
+uint32_t
+RouterViewComp::getRouterCount() const {
+  return get_field(&raw_t::m_router_count, m_base);
+}
+
+CacheIdBox&
+RouterViewComp::cacheId(int idx) {
+  return m_cache_ids[idx];
+}
+
+uint32_t
+RouterViewComp::getRouterAddr(int idx) const {
+  return access_array<uint32_t>(m_base + sizeof(raw_t))[idx];
+}
+
+RouterViewComp&
+RouterViewComp::setRouterAddr(int idx, uint32_t addr) {
+  access_array<uint32_t>(m_base + sizeof(raw_t))[idx] = addr;
+  return *this;
+}
+
+uint32_t*
+RouterViewComp::calc_cache_count_ptr() {
+  return reinterpret_cast<uint32_t*>(
+    m_base + sizeof(raw_t)
+    + this->getRouterCount() * sizeof(uint32_t)
+  );
+}
+
+RouterViewComp&
+RouterViewComp::fill(
+  MsgBuffer& buffer,
+  int n_routers,
+  int n_caches
+) {
+  // TBD: This isn't right since the upgrade to mask support
+  // because the size isn't a static function of the router and
+  // cache count anymore.
+  size_t comp_size = sizeof(raw_t);
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE);
+
+  // No setf for this field, hand pack it.
+  set_field(&raw_t::m_router_count, m_base, n_routers);
+  // Set the pointer to the count of caches.
+  m_cache_count = this->calc_cache_count_ptr();
+  // No setf, go direct.
+  *m_cache_count = htonl(n_caches);
+
+  this->setLength(comp_size - HEADER_SIZE);
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+RouterViewComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      uint32_t ncaches; // # of caches.
+      if (this->getRouterCount() > MAX_ROUTERS) zret = PARSE_MSG_INVALID;
+      // check if cache count is past end of buffer
+      else if (static_cast<void*>(m_cache_count = this->calc_cache_count_ptr())
+        >= static_cast<void*>(buffer.getBase() + buffer.getSize())
+      )
+        zret = PARSE_COMP_WRONG_SIZE, log(LVL_DEBUG, "I_SEE_YOU: cache counter past end of buffer");
+      else if ((ncaches = this->getCacheCount()) > MAX_CACHES)
+        zret = PARSE_MSG_INVALID;
+      else {
+        size_t comp_size = reinterpret_cast<char*>(m_cache_count+1) - m_base;
+        // Walk the cache ID elements.
+        MsgBuffer spot(buffer);
+        CacheIdBox* box = m_cache_ids;
+        uint32_t idx = 0;
+        spot.use(comp_size);
+        while ( idx < ncaches && PARSE_SUCCESS == (zret = box->parse(spot))) {
+          size_t k = box->getSize();
+          spot.use(k);
+          comp_size += k;
+          ++box;
+          ++idx;
+        }
+        if (PARSE_SUCCESS == zret) buffer.use(comp_size);
+      }
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+CacheIdComp&
+CacheIdComp::fill(MsgBuffer& base, CacheIdBox const& src) {
+  size_t comp_size = src.getSize() + HEADER_SIZE;
+
+  if (base.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = base.getTail();
+  this->setType(COMP_TYPE).setLength(comp_size - HEADER_SIZE);
+  m_box.fill(&(access_field(&raw_t::m_id, m_base)), src);
+  base.use(comp_size);
+  return *this;
+}
+
+int
+CacheIdComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      MsgBuffer tmp(buffer);
+      tmp.use(reinterpret_cast<char*>(&(access_field(&raw_t::m_id, m_base))) - m_base);
+      zret = m_box.parse(tmp);
+      if (PARSE_SUCCESS == zret) {
+        size_t comp_size = HEADER_SIZE + m_box.getSize();
+        if (this->getLength() != comp_size - HEADER_SIZE)
+          zret = PARSE_COMP_WRONG_SIZE;
+        else
+          buffer.use(comp_size);
+      }
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+uint32_t
+CacheViewComp::getChangeNumber() const {
+  return get_field(&raw_t::m_change_number, m_base);
+}
+
+CacheViewComp&
+CacheViewComp::setChangeNumber(uint32_t n) {
+  set_field(&raw_t::m_change_number, m_base, n);
+  return *this;
+}
+  
+uint32_t
+CacheViewComp::getRouterCount() const {
+  return get_field(&raw_t::m_router_count, m_base);
+}
+
+uint32_t
+CacheViewComp::getCacheCount() const {
+  return ntohl(*m_cache_count);
+}
+
+uint32_t
+CacheViewComp::getCacheAddr(int idx) const {
+  return ntohl(m_cache_count[idx+1]);
+}
+
+CacheViewComp&
+CacheViewComp::setCacheAddr(int idx, uint32_t addr) {
+  m_cache_count[idx+1] = addr;
+  return *this;
+}
+
+RouterIdElt*
+CacheViewComp::atf_router_array() {
+  return reinterpret_cast<RouterIdElt*>(m_base + sizeof(raw_t));
+}
+
+RouterIdElt&
+CacheViewComp::routerElt(int idx) {
+  return this->atf_router_array()[idx];
+}
+
+RouterIdElt*
+CacheViewComp::findf_router_elt(uint32_t addr) {
+  for ( RouterIdElt *rtr = this->atf_router_array(),
+          *limit = rtr + this->getRouterCount() ;
+        rtr < limit;
+        ++rtr
+  ) {
+    if (rtr->getAddr() == addr) return rtr;
+  }
+  return 0;
+}
+
+size_t
+CacheViewComp::calcSize(int n_routers, int n_caches) {
+  return sizeof(raw_t)
+    + n_routers * sizeof(RouterIdElt)
+    + sizeof(uint32_t) + n_caches * sizeof(uint32_t)
+    ;
+}
+
+CacheViewComp&
+CacheViewComp::fill(
+  MsgBuffer& buffer,
+  detail::cache::GroupData const& group
+) {
+  int i;
+  size_t n_routers = group.m_routers.size();
+  size_t n_caches = group.m_caches.size();
+  size_t comp_size = this->calcSize(n_routers, n_caches);
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE).setChangeNumber(group.m_generation);
+
+  set_field(&raw_t::m_router_count, m_base, n_routers);
+  // Set the pointer to the count of caches.
+  m_cache_count = reinterpret_cast<uint32_t*>(
+    m_base + sizeof(raw_t) + n_routers * sizeof(RouterIdElt)
+  );
+  *m_cache_count = htonl(n_caches); // set the actual count.
+
+  // Fill routers.
+  i = 0;
+  for ( detail::cache::RouterBag::const_iterator spot = group.m_routers.begin(),
+          limit = group.m_routers.end();
+        spot != limit;
+        ++spot, ++i
+  ) {
+    this->routerElt(i)
+      .setAddr(spot->m_addr)
+      .setRecvId(spot->m_recv.m_sn)
+      ;
+  }
+
+  // fill caches.
+  i = 0;
+  for ( detail::cache::CacheBag::const_iterator spot = group.m_caches.begin(),
+          limit = group.m_caches.end();
+        spot != limit;
+        ++spot, ++i
+  ) {
+    this->setCacheAddr(i, spot->idAddr());
+  }
+
+  this->setLength(comp_size - sizeof(super::raw_t));
+  buffer.use(comp_size);
+  return *this;
+}
+
+int
+CacheViewComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      m_cache_count = reinterpret_cast<uint32_t*>(
+        m_base + sizeof(raw_t)
+        + this->getRouterCount() * sizeof(RouterIdElt)
+      );
+      size_t comp_size = this->calcSize(this->getRouterCount(), this->getCacheCount());
+      if (this->getLength() != comp_size - sizeof(super::raw_t))
+        zret = PARSE_COMP_WRONG_SIZE;
+      else
+        buffer.use(comp_size);
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+AssignmentKeyElt&
+AssignInfoComp::keyElt() {
+  return access_field(&raw_t::m_key, m_base);
+}
+
+AssignmentKeyElt const&
+AssignInfoComp::keyElt() const {
+  return access_field(&raw_t::m_key, m_base);
+}
+
+uint32_t
+AssignInfoComp::getKeyChangeNumber() const {
+  return access_field(&raw_t::m_key, m_base).getChangeNumber();
+}
+
+AssignInfoComp&
+AssignInfoComp::setKeyChangeNumber(uint32_t n) {
+  access_field(&raw_t::m_key, m_base).setChangeNumber(n);
+  return *this;
+}
+  
+uint32_t
+AssignInfoComp::getKeyAddr() const {
+  return access_field(&raw_t::m_key, m_base).getAddr();
+}
+
+AssignInfoComp&
+AssignInfoComp::setKeyAddr(uint32_t addr) {
+  access_field(&raw_t::m_key, m_base).setAddr(addr);
+  return *this;
+}
+
+uint32_t
+AssignInfoComp::getRouterCount() const {
+  return access_field(&raw_t::m_routers, m_base).getCount();
+}
+
+RouterAssignElt&
+AssignInfoComp::routerElt(int idx) {
+  return access_field(&raw_t::m_routers, m_base).elt(idx);
+}
+
+uint32_t
+AssignInfoComp::getCacheCount() const {
+  return ntohl(*m_cache_count);
+}
+
+uint32_t
+AssignInfoComp::getCacheAddr(int idx) const {
+  return m_cache_count[idx+1];
+}
+
+AssignInfoComp&
+AssignInfoComp::setCacheAddr(int idx, uint32_t addr) {
+  m_cache_count[idx+1] = addr;
+  return *this;
+}
+
+size_t
+AssignInfoComp::calcSize(int n_routers, int n_caches) {
+  return sizeof(raw_t)
+    + RouterAssignListElt::calcVarSize(n_routers)
+    + HashAssignElt::calcSize(n_caches)
+    ;
+}
+
+uint32_t*
+AssignInfoComp::calcCacheCountPtr() {
+  return reinterpret_cast<uint32_t*>(
+    m_base + sizeof(raw_t)
+    + access_field(&raw_t::m_routers, m_base).getVarSize()
+  );
+}
+
+AssignInfoComp::Bucket*
+AssignInfoComp::calcBucketPtr() {
+  return reinterpret_cast<Bucket*>(reinterpret_cast<char*>(m_cache_count) + sizeof(uint32_t) * (1 + this->getCacheCount()));
+}  
+
+AssignInfoComp&
+AssignInfoComp::fill(
+  MsgBuffer& buffer,
+  detail::Assignment const& assign
+) {
+  RouterAssignListElt const& ralist = assign.getRouterList();
+  HashAssignElt const& ha = assign.getHash();
+  size_t n_routers = ralist.getCount();
+  size_t n_caches = ha.getCount();
+  size_t comp_size = this->calcSize(n_routers, n_caches);
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE);
+  this->keyElt() = assign.getKey();
+  memcpy(&(access_field(&raw_t::m_routers, m_base)), &ralist, ralist.getSize());
+  // Set the pointer to the count of caches and write the count.
+  m_cache_count = this->calcCacheCountPtr();
+  memcpy(m_cache_count, &ha, ha.getSize());
+
+  this->setLength(comp_size - HEADER_SIZE);
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+AssignInfoComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < HEADER_SIZE) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      int n_routers = this->getRouterCount();
+      int n_caches;
+      m_cache_count = this->calcCacheCountPtr();
+      n_caches = this->getCacheCount();
+      m_buckets = this->calcBucketPtr();
+      size_t comp_size = this->calcSize(n_routers, n_caches);
+      if (this->getLength() != comp_size - HEADER_SIZE)
+        zret = PARSE_COMP_WRONG_SIZE;
+      else
+        buffer.use(comp_size);
+    }
+  }
+  if (PARSE_SUCCESS != zret) m_base = 0;
+  return zret;
+}
+
+AssignmentKeyElt&
+AltAssignComp::keyElt() {
+  return access_field(&raw_t::m_key, m_base);
+}
+
+AssignmentKeyElt const&
+AltAssignComp::keyElt() const {
+  return access_field(&raw_t::m_key, m_base);
+}
+
+void*
+AltAssignComp::calcVarPtr() {
+  return reinterpret_cast<void*>(
+    m_base + sizeof(raw_t)
+    + access_field(&raw_t::m_routers, m_base).getVarSize()
+  );
+}
+
+uint32_t
+AltAssignComp::getRouterCount() const {
+  return access_field(&raw_t::m_routers, m_base).getCount();
+}
+
+uint32_t
+AltHashAssignComp::getCacheCount() const {
+  return ntohl(*m_cache_count);
+}
+
+
+size_t
+AltHashAssignComp::calcSize(int n_routers, int n_caches) {
+  return sizeof(raw_t)
+    + RouterAssignListElt::calcVarSize(n_routers)
+    + HashAssignElt::calcSize(n_caches)
+    ;
+}
+
+AltHashAssignComp&
+AltHashAssignComp::fill(
+  MsgBuffer& buffer,
+  detail::Assignment const& assign
+) {
+  RouterAssignListElt const& ralist = assign.getRouterList();
+  HashAssignElt const& ha = assign.getHash();
+  size_t n_routers = ralist.getCount();
+  size_t n_caches = ha.getCount();
+  size_t comp_size = this->calcSize(n_routers, n_caches);
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE)
+    .setLength(comp_size - HEADER_SIZE)
+    .setAssignType(ALT_HASH_ASSIGNMENT)
+    .setAssignLength(comp_size - HEADER_SIZE - sizeof(local_header_t))
+    ;
+  this->keyElt() = assign.getKey();
+  memcpy(&(access_field(&raw_t::m_routers, m_base)), &ralist, ralist.getSize());
+  // Set the pointer to the count of caches and write the count.
+  m_cache_count = static_cast<uint32_t*>(this->calcVarPtr());
+  memcpy(m_cache_count, &ha, ha.getSize());
+
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+AltHashAssignComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      int n_routers = this->getRouterCount();
+      int n_caches;
+      m_cache_count = static_cast<uint32_t*>(this->calcVarPtr());
+      n_caches = this->getCacheCount();
+      size_t comp_size = this->calcSize(n_routers, n_caches);
+      if (this->getLength() != comp_size - HEADER_SIZE)
+        zret = PARSE_COMP_WRONG_SIZE;
+      else
+        buffer.use(comp_size);
+    }
+  }
+  if (PARSE_SUCCESS != zret) m_base = 0;
+  return zret;
+}
+
+AltMaskAssignComp&
+AltMaskAssignComp::fill(
+  MsgBuffer& buffer,
+  detail::Assignment const& assign
+) {
+  RouterAssignListElt const& ralist = assign.getRouterList();
+  MaskAssignElt const& ma = assign.getMask();
+  size_t comp_size = sizeof(raw_t) + ralist.getVarSize() + ma.getSize();
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE)
+    .setLength(comp_size - HEADER_SIZE)
+    .setAssignType(ALT_MASK_ASSIGNMENT)
+    .setAssignLength(comp_size - HEADER_SIZE - sizeof(local_header_t))
+    ;
+  this->keyElt() = assign.getKey();
+
+  memcpy(&(access_field(&raw_t::m_routers, m_base)), &ralist, ralist.getSize());
+  m_mask_elt = static_cast<MaskAssignElt*>(this->calcVarPtr());
+  memcpy(m_mask_elt, &ma, ma.getSize());
+
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+AltMaskAssignComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      RouterAssignListElt* ralist = &(access_field(&raw_t::m_routers, m_base));
+      m_mask_elt = static_cast<MaskAssignElt*>(this->calcVarPtr());
+      size_t comp_size = sizeof(raw_t) + ralist->getVarSize() + m_mask_elt->getSize();
+      if (this->getLength() != comp_size - HEADER_SIZE)
+        zret = PARSE_COMP_WRONG_SIZE;
+      else
+        buffer.use(comp_size);
+    }
+  }
+  if (PARSE_SUCCESS != zret) m_base = 0;
+  return zret;
+}
+
+// ------------------------------------------------------
+CmdComp::cmd_t
+CmdComp::getCmd() const {
+  return static_cast<cmd_t>(get_field(&raw_t::m_cmd, m_base));
+}
+
+CmdComp&
+CmdComp::setCmd(cmd_t cmd) {
+  set_field(&raw_t::m_cmd, m_base, cmd);
+  return *this;
+}
+
+uint32_t
+CmdComp::getCmdData() const {
+  return get_field(&raw_t::m_cmd_data, m_base);
+}
+
+CmdComp&
+CmdComp::setCmdData(uint32_t data) {
+  set_field(&raw_t::m_cmd_data, m_base, data);
+  return *this;
+}
+
+inline size_t
+CmdComp::calcSize() {
+  return sizeof(raw_t);
+}
+
+CmdComp&
+CmdComp::fill(MsgBuffer& buffer, cmd_t cmd, uint32_t data) {
+  size_t comp_size = this->calcSize();
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+
+  this->setType(COMP_TYPE)
+    .setCmd(cmd)
+    .setCmdData(data)
+    .setLength(sizeof(raw_t) - sizeof(super::raw_t))
+    ;
+  // Command length is always the same.
+  set_field(&raw_t::m_length, m_base, sizeof(uint32_t));
+//  reinterpret_cast<raw_t*>(m_base)->m_length = htons(sizeof(uint32_t));
+  return *this;
+}
+
+int
+CmdComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      if (this->getLength() + sizeof(super::raw_t) != this->calcSize())
+        zret = PARSE_COMP_WRONG_SIZE;
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+CapabilityElt&
+CapComp::elt(int idx) {
+  return access_array<CapabilityElt>(m_base + sizeof(super::raw_t))[idx];
+}
+
+CapabilityElt const&
+CapComp::elt(int idx) const {
+  return access_array<CapabilityElt>(m_base + sizeof(super::raw_t))[idx];
+}
+
+void
+CapComp::cache() const {
+  uint32_t x; // scratch for bounds checking.
+  // Reset all values.
+  m_packet_forward = ServiceGroup::NO_PACKET_STYLE;
+  m_packet_return = ServiceGroup::NO_PACKET_STYLE;
+  m_cache_assign = ServiceGroup::NO_CACHE_ASSIGN_STYLE;
+  if (!m_base) return; // No data, everything is default.
+  // Load from data.
+  for ( uint32_t i = 0, n = this->getEltCount() ; i < n ; ++i ) {
+    CapabilityElt const& elt = this->elt(i);
+    switch (elt.getCapType()) {
+    case CapabilityElt::PACKET_FORWARD_METHOD:
+      x = elt.getCapData();
+      if (0 < x && x < 4) 
+        m_packet_forward = static_cast<ServiceGroup::PacketStyle>(x);
+      break;
+    case CapabilityElt::PACKET_RETURN_METHOD:
+      x = elt.getCapData();
+      if (0 < x && x < 4) 
+        m_packet_return = static_cast<ServiceGroup::PacketStyle>(x);
+      break;
+    case CapabilityElt::CACHE_ASSIGNMENT_METHOD:
+      x = elt.getCapData();
+      if (0 < x && x < 4) 
+        m_cache_assign = static_cast<ServiceGroup::CacheAssignmentStyle>(x);
+      break;
+    default:
+      logf(LVL_INFO, "Invalid capability type %d in packet.", elt.getCapType());
+      break;
+    }
+  }
+  m_cached = true;
+}
+
+CapComp&
+CapComp::fill(MsgBuffer& buffer, int n) {
+  size_t comp_size = this->calcSize(n);
+  m_cached = false;
+
+  if (buffer.getSpace() < comp_size)
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+  this->setType(COMP_TYPE).setLength(comp_size - sizeof(super::raw_t));
+  m_count = n;
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+CapComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  m_cached = false;
+  if (buffer.getSpace()< sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      // No explicit count, compute it from length.
+      m_count = this->getLength() / sizeof(CapabilityElt);
+      buffer.use(this->getLength() + sizeof(super::raw_t));
+    }
+  }
+  return zret;
+}
+// ------------------------------------------------------
+int
+QueryComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace()< sizeof(raw_t)) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret)
+      buffer.use(this->calcSize());
+  }
+  return zret;
+}
+// ------------------------------------------------------
+uint32_t
+AssignMapComp::getCount() const {
+  return access_field(&raw_t::m_assign, m_base).getCount();
+}
+
+AssignMapComp&
+AssignMapComp::fill(MsgBuffer& buffer, detail::Assignment const& assign) {
+  size_t comp_size = sizeof(raw_t);
+  MaskAssignElt const& ma = assign.getMask();
+  size_t ma_size = ma.getSize(); // Not constant time.
+
+  // Can't be precise, but we need at least one mask/value set with
+  // at least one value. If we don't have that it's a clear fail.
+  if (buffer.getSpace() < comp_size + sizeof(MaskValueSetElt::calcSize(1)))
+    throw ts::Exception(BUFFER_TOO_SMALL_FOR_COMP_TEXT);
+
+  m_base = buffer.getTail();
+  memcpy(&(access_field(&raw_t::m_assign, m_base)), &ma, ma_size);
+  comp_size += ma_size - sizeof(ma);
+
+  this->setType(COMP_TYPE)
+    .setLength(comp_size - HEADER_SIZE)
+    ;
+  buffer.use(comp_size);
+
+  return *this;
+}
+
+int
+AssignMapComp::parse(MsgBuffer& buffer) {
+  int zret = PARSE_SUCCESS;
+  if (buffer.getSpace() < HEADER_SIZE) 
+    zret = PARSE_BUFFER_TOO_SMALL;
+  else {
+    m_base = buffer.getTail();
+    zret = this->checkHeader(buffer, COMP_TYPE);
+    if (PARSE_SUCCESS == zret ) {
+      // TBD - Actually check the mask/value set data !!
+      buffer.use(this->getLength() + HEADER_SIZE);
+    }
+  }
+  if (PARSE_SUCCESS != zret) m_base = 0;
+  return zret;
+}
+// ------------------------------------------------------
+detail::Assignment::Assignment()
+  : m_key(0,0)
+  , m_active(false)
+  , m_router_list(0)
+  , m_hash_assign(0)
+  , m_mask_assign(0) {
+}
+
+bool
+detail::Assignment::fill(cache::GroupData& group, uint32_t addr) {
+  // Compute the last packet received times for the routers.  For each
+  // cache, compute how many routers mentioned it in their last
+  // packet. Prepare an assignment from those caches.  If there are no
+  // such caches, fail the assignment.  Any cache that wasn't
+  // mentioned by at least one router are purged.
+
+  size_t n_routers = group.m_routers.size(); // routers in group
+  size_t n_caches = group.m_caches.size(); // caches in group
+
+  // We need both routers and caches to do something useful.
+  if (! (n_routers && n_caches)) return false;
+
+  // Iteration vars.
+  size_t cdx, rdx;
+  cache::RouterBag::iterator rspot,
+    rbegin = group.m_routers.begin(),
+    rend = group.m_routers.end();
+  cache::CacheBag::iterator cspot,
+    cbegin = group.m_caches.begin(),
+    cend = group.m_caches.end();
+
+  size_t nr[n_caches]; // validity check counts.
+  memset(nr, 0, sizeof(nr)); // Set counts to zero.
+
+  // Guess at size of serialization buffer. For the router list and
+  // the hash assignment, we can compute reasonable upper bounds and so
+  // we don't have to do space checks when those get filled out.
+  // The mask assignment is more difficult. We just guess generously and
+  // try to recover if we go over.  
+  size_t size = RouterAssignListElt::calcSize(n_routers) + HashAssignElt::calcSize(n_caches) + 4096;
+
+  if (m_buffer.getSize() < size) {
+    ats_free(m_buffer.getBase());
+    m_buffer.set(ats_malloc(size), size);
+  }
+  m_buffer.reset();
+
+  // Set assignment key
+  m_key.setAddr(addr).setChangeNumber(group.m_generation);
+
+  m_router_list = reinterpret_cast<RouterAssignListElt*>(m_buffer.getBase());
+  new (m_router_list) RouterAssignListElt(n_routers);
+
+  // For each router, update the assignment and run over the caches
+  // and bump the nr count if that cache was included in the most
+  // recent packet. Note that the router data gets updated from
+  // ISeeYou message processing as well, this is more of an initial
+  // setup.
+  for ( rdx = 0, rspot = rbegin ; rspot != rend ; ++rspot, ++rdx ) {
+    // Update router assignment.
+    m_router_list->elt(rdx)
+      .setChangeNumber(rspot->m_generation)
+      .setAddr(rspot->m_addr)
+      .setRecvId(rspot->m_recv.m_sn)
+      ;
+    // Check cache validity.
+    for ( cdx = 0, cspot = cbegin ; cspot != cend ; ++cspot, ++cdx ) {
+      if (cspot->m_src[rdx].m_time == rspot->m_recv.m_time)
+        ++(nr[cdx]);
+    }
+  }
+
+  size_t k = m_router_list->getSize();
+  m_buffer.use(k);
+  m_hash_assign = reinterpret_cast<HashAssignElt*>(m_buffer.getTail());
+  
+  // If the nr value is 0, then the cache was not included in any
+  // last packet, so it should be discarded. A cache is valid if
+  // nr is n_routers, indicating that every router mentioned it.
+  int v_caches = 0; // valid caches
+  for ( cdx = 0, cspot = cbegin ; cspot != cend ; ++cspot, ++cdx )
+    if (nr[cdx] == n_routers) {
+      m_hash_assign->setAddr(cdx, cspot->idAddr());
+      ++v_caches;
+    }
+
+  if (! v_caches) { // no valid caches.
+    log(LVL_INFO, "Attempted to generate cache assignment but no valid caches were found.");
+    return false;
+  }
+  // Just sets the cache count.
+  new (m_hash_assign) HashAssignElt(v_caches);
+  m_hash_assign->round_robin_assign();
+  m_buffer.use(m_hash_assign->getSize());
+
+  m_mask_assign = reinterpret_cast<MaskAssignElt*>(m_buffer.getTail());
+  new (m_mask_assign) MaskAssignElt;
+
+  // For now, hardwire everything to first cache.
+  // We have plenty of space, but will need to check if we do something
+  // more complex here.
+  m_mask_assign->init(0,0,0,0)->addValue(m_hash_assign->getAddr(0),0,0,0,0);
+
+  logf(LVL_INFO, "Generated assignment for group %d with %d routers, %d valid caches.", group.m_svc.getSvcId(), n_routers, v_caches);
+
+  return true;
+}
+// ------------------------------------------------------
+void
+BaseMsg::setBuffer(MsgBuffer const& buffer) {
+  m_buffer = buffer;
+}
+
+void
+BaseMsg::finalize() {
+  m_header.setLength(m_buffer.getCount() - m_header.calcSize());
+  m_security.secure(m_buffer);
+}
+
+bool
+BaseMsg::validateSecurity() const {
+  return m_security.validate(m_buffer);
+}
+// ------------------------------------------------------
+void
+HereIAmMsg::fill(
+    detail::cache::GroupData const& group,
+    CacheIdBox const& cache_id,
+    SecurityOption sec_opt
+) {
+  m_header.fill(m_buffer, HERE_I_AM);
+  m_security.fill(m_buffer, sec_opt);
+  m_service.fill(m_buffer, group.m_svc);
+  m_cache_id.fill(m_buffer, cache_id);
+  m_cache_view.fill(m_buffer, group);
+}
+
+void
+HereIAmMsg::fill_caps(
+    detail::cache::RouterData const& router
+) {
+  if (router.m_send_caps) {
+    m_capabilities.fill(m_buffer, 3);
+    m_capabilities.elt(0) = 
+      CapabilityElt(CapabilityElt::PACKET_FORWARD_METHOD, router.m_packet_forward);
+    m_capabilities.elt(1) = 
+      CapabilityElt(CapabilityElt::CACHE_ASSIGNMENT_METHOD, router.m_cache_assign);
+    m_capabilities.elt(2) = 
+      CapabilityElt(CapabilityElt::PACKET_RETURN_METHOD, router.m_packet_return);
+  }
+}
+
+int
+HereIAmMsg::parse(ts::Buffer const& buffer) {
+  int zret;
+  this->setBuffer(buffer);
+  if (!m_buffer.getBase()) return -EINVAL;
+  zret = m_header.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+  if (HERE_I_AM != m_header.getType()) return PARSE_MSG_WRONG_TYPE;
+
+  // Time to look for components.
+  zret = m_security.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_service.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_cache_id.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_cache_view.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  // These are optional so failures can be ignored.
+  if (m_buffer.getSpace()) m_capabilities.parse(m_buffer);
+  if (m_buffer.getSpace()) m_command.parse(m_buffer);
+
+  return m_buffer.getSpace() ? PARSE_DATA_OVERRUN : PARSE_SUCCESS;
+}
+// ------------------------------------------------------
+void
+RedirectAssignMsg::fill(
+  detail::cache::GroupData const& group,
+  SecurityOption sec_opt
+) {
+  m_header.fill(m_buffer, REDIRECT_ASSIGN);
+  m_security.fill(m_buffer, sec_opt);
+  m_service.fill(m_buffer, group.m_svc);
+  switch (group.m_cache_assign) {
+  case ServiceGroup::HASH_ONLY:
+    m_hash_assign.fill(m_buffer, group.m_assign_info);
+    break;
+  case ServiceGroup::MASK_ONLY:
+    m_alt_mask_assign.fill(m_buffer, group.m_assign_info);
+    break;
+  default:
+    logf(LVL_WARN, "Bad assignment type [%d] for REDIRECT_ASSIGN", group.m_cache_assign);
+    break;
+  }
+}
+// ------------------------------------------------------
+void
+ISeeYouMsg::fill(
+  detail::router::GroupData const& group,
+  SecurityOption sec_opt,
+  detail::Assignment& /* assign ATS_UNUSED */,
+  size_t to_caches,
+  size_t n_routers,
+  size_t n_caches,
+  bool /* send_capabilities ATS_UNUSED */
+) {
+  m_header.fill(m_buffer, I_SEE_YOU);
+  m_security.fill(m_buffer, sec_opt);
+  m_service.fill(m_buffer, group.m_svc);
+  m_router_id.fill(m_buffer, to_caches);
+  m_router_view.fill(m_buffer, n_routers, n_caches);
+}
+
+int
+ISeeYouMsg::parse(ts::Buffer const& buffer) {
+  int zret;
+  this->setBuffer(buffer);
+  if (!m_buffer.getBase()) return -EINVAL;
+  zret = m_header.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+  if (I_SEE_YOU != m_header.getType()) return PARSE_MSG_WRONG_TYPE;
+
+  // Time to look for components.
+  zret = m_security.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_service.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_router_id.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) { logf(LVL_DEBUG, "I_SEE_YOU: Invalid %d router id", zret); return zret; }
+
+  zret = m_router_view.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) { logf(LVL_DEBUG, "I_SEE_YOU: Invalid %d router view", zret); return zret; }
+
+  // Optional components.
+
+  // Test for alternates here
+  // At most one of the asssignments but never both.
+  // Can be omitted.
+  m_assignment.parse(m_buffer);
+  m_map.parse(m_buffer);
+
+  // Optional components.
+  m_capabilities.parse(m_buffer);
+  m_command.parse(m_buffer);
+
+  if (m_buffer.getSpace()) {
+    zret = PARSE_DATA_OVERRUN;
+    logf(LVL_DEBUG, "I_SEE_YOU: Data overrun %lu", m_buffer.getSpace());
+  }
+
+  return zret;
+}
+// ------------------------------------------------------
+int
+RemovalQueryMsg::parse(ts::Buffer const& buffer) {
+  int zret;
+  this->setBuffer(buffer);
+  if (!m_buffer.getBase()) return -EINVAL;
+  zret = m_header.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+  if (REMOVAL_QUERY != m_header.getType()) return PARSE_MSG_WRONG_TYPE;
+
+  // Get the components.
+  zret = m_security.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_service.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  zret = m_query.parse(m_buffer);
+  if (PARSE_SUCCESS != zret) return zret;
+
+  return m_buffer.getSpace() ? PARSE_DATA_OVERRUN : PARSE_SUCCESS;
+}
+// ------------------------------------------------------
+} // namespace wccp
diff --git a/lib/wccp/WccpStatic.cc b/lib/wccp/WccpStatic.cc
new file mode 100644
index 00000000..bcb06a80
--- /dev/null
+++ b/lib/wccp/WccpStatic.cc
@@ -0,0 +1,189 @@
+/** @file
+    WCCP static data and compile time checks.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include "WccpLocal.h"
+# include "WccpMeta.h"
+# include "ink_error.h"
+# include "ink_defs.h"
+
+/* Solaris considers SIOCGIFCONF obsolete and only defines it if
+ * BSD compatibility activated. */
+# if defined(solaris)
+# define BSD_COMP
+# endif
+# include <sys/ioctl.h>
+# include <sys/socket.h>
+# include <net/if.h>
+# include <stdarg.h>
+# include <string.h>
+# include <errno.h>
+# include <stdio.h>
+
+namespace wccp {
+// ------------------------------------------------------
+// Compile time checks for internal consistency.
+
+struct CompileTimeChecks {
+  static unsigned int const BUCKET_SIZE = sizeof(AssignInfoComp::Bucket);
+  static unsigned int const UINT8_SIZE = sizeof(uint8_t);
+  // A compiler error for the following line means that the size of
+  // an assignment bucket is incorrect. It must be exactly 1 byte.
+  ts::TEST_IF_TRUE< BUCKET_SIZE == UINT8_SIZE > m_check_bucket_size;
+};
+
+ts::Errata::Code LVL_TMP = 1; ///< Temporary message.
+ts::Errata::Code LVL_FATAL = 3; ///< Fatal, cannot continue.
+ts::Errata::Code LVL_WARN = 2; ///< Significant, should be fixed.
+ts::Errata::Code LVL_INFO = 1; /// Interesting, not necessarily a problem.
+ts::Errata::Code LVL_DEBUG = 0; /// Debugging information.
+
+// Find a valid local IP address given an open socket.
+uint32_t
+Get_Local_Address(int s) {
+  // If we can't find a good address in the first 255, just give up
+  // and make the user specify an address.
+  static int const N_REQ = 255;
+  ifconf conf;
+  ifreq req[N_REQ];
+  uint32_t zret;
+
+  conf.ifc_len = sizeof(req);
+  conf.ifc_req = req;
+  if (0 == ioctl(s, SIOCGIFCONF, &conf)) {
+    int idx = 0;
+    ifreq* ptr = req;
+    ifreq* limit = req + (conf.ifc_len / sizeof(*req));
+    for ( ; idx < N_REQ && ptr < limit ; ++idx, ++ptr ) {
+      zret = reinterpret_cast<sockaddr_in&>(ptr->ifr_addr).sin_addr.s_addr;
+      if ((zret & 0xFF) != 0x7F) return zret;
+    }
+  }
+  return INADDR_ANY; // fail
+}
+
+// Cheap, can't even be used twice in the same argument list.
+char const* ip_addr_to_str(uint32_t addr) {
+  static char buff[4 * 3 + 3 + 1];
+  unsigned char* octet = reinterpret_cast<unsigned char*>(&addr);
+  sprintf(buff, "%d.%d.%d.%d", octet[0], octet[1], octet[2], octet[3]);
+  return buff;
+}
+
+// ------------------------------------------------------
+ts::Errata&
+log(ts::Errata& err, ts::Errata::Id id, ts::Errata::Code code, char const* text) {
+  err.push(id, code, text);
+  return err;
+}
+
+ts::Errata&
+log(ts::Errata& err, ts::Errata::Code code, char const* text) {
+  err.push(0, code, text);
+  return err;
+}
+
+ts::Errata
+log(ts::Errata::Code code, char const* text) {
+  ts::Errata err;
+  err.push(0, code, text);
+  return err;
+}
+
+ts::Errata&
+vlogf(
+  ts::Errata& err,
+  ts::Errata::Id id,
+  ts::Errata::Code code,
+  char const* format,
+  va_list& rest
+) {
+  static size_t const SIZE = 8192;
+  char buffer[SIZE];
+  
+  vsnprintf(buffer, SIZE, format, rest);
+  err.push(id, code, buffer);
+  return err;
+}
+
+ts::Errata&
+logf(
+  ts::Errata& err,
+  ts::Errata::Id id,
+  ts::Errata::Code code,
+  char const* format,
+  ...
+) {
+  va_list rest;
+  va_start(rest, format);
+  return vlogf(err, id, code, format, rest);
+}
+
+ts::Errata
+logf(ts::Errata::Code code, char const* format, ...) {
+  ts::Errata err;
+  va_list rest;
+  va_start(rest, format);
+  return vlogf(err, ts::Errata::Id(0), code, format, rest);
+}
+
+ts::Errata&
+logf(ts::Errata& err, ts::Errata::Code code, char const* format, ...) {
+  va_list rest;
+  va_start(rest, format);
+  return vlogf(err, ts::Errata::Id(0), code, format, rest);
+}
+
+ts::Errata
+log_errno(ts::Errata::Code code, char const* text) {
+  static size_t const SIZE = 1024;
+  char buffer[SIZE];
+  ATS_UNUSED_RETURN(strerror_r(errno, buffer, SIZE));
+  return logf(code, "%s [%d] %s", text, errno, buffer);
+}
+
+ts::Errata
+vlogf_errno(ts::Errata::Code code, char const* format, va_list& rest) {
+  int e = errno; // Preserve value before making system calls.
+  ts::Errata err;
+  int n;
+  static int const E_SIZE = 1024;
+  char e_buffer[E_SIZE];
+  static int const T_SIZE = 8192;
+  char t_buffer[T_SIZE];
+  
+  n = vsnprintf(t_buffer, T_SIZE, format, rest);
+  if (0 <= n && n < T_SIZE) { // still have room.
+    ATS_UNUSED_RETURN(strerror_r(e, e_buffer, E_SIZE));
+    n += snprintf(t_buffer + n, T_SIZE - n, "[%d] %s", e, e_buffer);
+  }
+  err.push(ts::Errata::Id(0), code, t_buffer);
+  return err;
+}
+
+ts::Errata
+logf_errno(ts::Errata::Code code, char const* format, ...) {
+  va_list rest;
+  va_start(rest, format);
+  return vlogf_errno(code, format, rest);
+}
+// ------------------------------------------------------
+} // namespace wccp
diff --git a/lib/wccp/WccpUtil.h b/lib/wccp/WccpUtil.h
new file mode 100644
index 00000000..25bae9b8
--- /dev/null
+++ b/lib/wccp/WccpUtil.h
@@ -0,0 +1,223 @@
+/** @file
+    WCCP utilities and logging.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# if !defined(ATS_WCCP_UTIL_HEADER)
+# define ATS_WCCP_UTIL_HEADER
+
+# include <vector>
+
+namespace wccp {
+
+/// @name Message severity levels.
+//@{
+extern ts::Errata::Code LVL_FATAL; ///< Fatal, cannot continue.
+extern ts::Errata::Code LVL_WARN; ///< Significant, function degraded.
+extern ts::Errata::Code LVL_INFO; ///< Interesting, not necessarily a problem.
+extern ts::Errata::Code LVL_DEBUG; ///< Debugging information.
+extern ts::Errata::Code LVL_TMP; ///< For temporary debugging only.
+// Handy so that temporary debugging messages can be located by grep.
+//@}
+
+/** Logging / reporting support.
+    We build on top of @c Errata but we want to be able to prevent
+    message generation / allocation for messages with severity levels
+    less than a run time controllable value.
+
+    @internal Far from complete but serving as a prototype / experiment
+    to learn what's actually useful.
+*/
+//@{
+/// Report literal string to an Errata.
+/// @return @a err.
+ts::Errata& log(
+  ts::Errata& err,///< Target errata.
+  ts::Errata::Id id, ///< Message ID.
+  ts::Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/// Report literal string to an Errata.
+/// Use message ID 0.
+/// @return @a err.
+ts::Errata& log(
+  ts::Errata& err,///< Target errata.
+  ts::Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/// printf style log to Errata.
+/// @return @a err.
+ts::Errata& logf(
+  ts::Errata& err,///< Target errata.
+  ts::Errata::Id id, ///< Message ID.
+  ts::Errata::Code code, ///< Severity level.
+  char const* format, ///< Format string.
+  ... ///< Format string parameters.
+);
+/// printf style log to Errata.
+/// The message id is set to zero.
+/// @return @a err.
+ts::Errata& logf(
+  ts::Errata& err,///< Target errata.
+  ts::Errata::Code code, ///< Severity level.
+  char const* format, ///< Format string.
+  ... ///< Format string parameters.
+);
+/// Return an Errata populated with a literal string.
+/// Use message ID 0.
+/// @return @a err.
+ts::Errata log(
+  ts::Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/// Return an Errata populated with a printf styleformatted string.
+/// Use message ID 0.
+/// @return @a err.
+ts::Errata logf(
+  ts::Errata::Code code, ///< Severity level.
+  char const* format, ///< Message text.
+  ...
+);
+/** Return an Errata based on @c errno.
+    The literal string is combined with the system text for the current
+    value of @c errno. This is modeled on @c perror. Message ID 0 is used.
+    @return @a err.
+ */
+ts::Errata log_errno(
+  ts::Errata::Code code, ///< Severity level.
+  char const* text ///< Message text.
+);
+/** Return an @c Errata based on @c errno.
+    @c errno and the corresponding system error string are appended to
+    the results from the @a format and following arguments.
+ */
+ts::Errata
+logf_errno(
+  ts::Errata::Code code,  ///< Severity code.
+  char const* format, ///< Format string.
+  ... ///< Arguments for @a format.
+);
+//@}
+
+// ------------------------------------------------------
+/*  Template support for access to raw message fields.
+    We have three overloads, one for each size of field.
+    By passing the member pointer we avoid having to specify
+    any template argument at the call site. For instance, to
+    get a 16 bit field out of a "raw_t" struct with a member
+    name of "field", you would use
+
+    get_field(&raw_t::field, buffer);
+
+    Note these templates handle network ordering internally.
+    See access_field for completely unmediated access.
+*/
+
+template < typename R>
+uint8_t get_field(uint8_t R::*M, char* buffer) {
+  return reinterpret_cast<R*>(buffer)->*M;
+}
+
+template < typename R>
+uint16_t get_field(uint16_t R::*M, char* buffer) {
+  return ntohs(reinterpret_cast<R*>(buffer)->*M);
+}
+
+template < typename R>
+uint32_t get_field(uint32_t R::*M, char* buffer) {
+  return ntohl(reinterpret_cast<R*>(buffer)->*M);
+}
+
+template < typename R>
+void set_field(uint16_t R::*M, char* buffer, uint16_t value) {
+  reinterpret_cast<R*>(buffer)->*M = htons(value);
+}
+
+template < typename R>
+void set_field(uint32_t R::*M, char* buffer, uint32_t value) {
+  reinterpret_cast<R*>(buffer)->*M = htonl(value);
+}
+
+// IP address fields are kept locally in network order so
+// we need variants without re-ordering.
+// Also required for member structures.
+template < typename R, typename T >
+T& access_field(T R::*M, void* buffer) {
+  return reinterpret_cast<R*>(buffer)->*M;
+}
+
+// Access an array @a T starting at @a buffer.
+template < typename T>
+T* access_array(void* buffer) {
+  return reinterpret_cast<T*>(buffer);
+}
+// Access an array of @a T starting at @a buffer.
+template < typename T >
+T const* access_array(void const* buffer) {
+  return reinterpret_cast<T const*>(buffer);
+}
+
+/// Find an element in a vector by the value of a member.
+/// @return An iterator for the element, or equal to @c end if not found.
+template <
+  typename T, ///< Vector element type.
+  typename V ///< Member type.
+> typename std::vector<T>::iterator
+find_by_member(
+  std::vector<T>& container, ///< Vector with elements.
+  V T::*member, ///< Pointer to member to compare.
+  V const& value ///< Value to match.
+) {
+  typename std::vector<T>::iterator spot = container.begin();
+  typename std::vector<T>::iterator limit = container.end();
+  while (spot != limit && (*spot).*member != value)
+    ++spot;
+  return spot;
+}
+// ------------------------------------------------------
+/// Find a non-loop back IP address from an open socket.
+uint32_t Get_Local_Address(
+  int s ///< Open socket.
+);
+// ------------------------------------------------------
+/// Cheap and dirty conversion to string for debugging.
+/// @note Uses a static buffer so won't work across threads or
+/// twice in the same argument list.
+char const* ip_addr_to_str(
+  uint32_t addr ///< Address to convert.
+);
+
+/** Used for printing IP address.
+    @code
+    uint32_t addr; // IP address.
+    printf("IP address = " ATS_IP_PRINTF_CODE,ATS_IP_OCTETS(addr));
+    @endcode
+ */
+# define ATS_IP_PRINTF_CODE "%d.%d.%d.%d"
+# define ATS_IP_OCTETS(x) \
+  reinterpret_cast<unsigned char const*>(&(x))[0],   \
+    reinterpret_cast<unsigned char const*>(&(x))[1], \
+    reinterpret_cast<unsigned char const*>(&(x))[2], \
+    reinterpret_cast<unsigned char const*>(&(x))[3]
+// ------------------------------------------------------
+
+} // namespace Wccp
+
+# endif // define ATS_WCCP_UTIL_HEADER
diff --git a/lib/wccp/wccp-test-cache.cc b/lib/wccp/wccp-test-cache.cc
new file mode 100644
index 00000000..f044dc80
--- /dev/null
+++ b/lib/wccp/wccp-test-cache.cc
@@ -0,0 +1,196 @@
+/** @file
+    WCCP cache simulation for testing.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <stdio.h>
+# include <unistd.h>
+# include <stdarg.h>
+# include <memory.h>
+# include <strings.h>
+# include <iostream>
+# include <iomanip>
+
+# include <getopt.h>
+
+# include "Wccp.h"
+
+# include <sys/socket.h>
+# include <netinet/in.h>
+# include <arpa/inet.h>
+
+# include <poll.h>
+
+# include <libconfig.h++>
+
+static char const USAGE_TEXT[] =
+  "%s\n"
+  "--address IP address to bind.\n"
+  "--router Booststrap IP address for routers.\n"
+  "--service Path to service group definitions.\n"
+  "--help Print usage and exit.\n"
+  ;
+
+static bool Ready = true;
+
+inline void Error(char const* fmt, ...) {
+  va_list args;
+  va_start(args, fmt);
+  vfprintf(stderr, fmt, args);
+  Ready = false;
+}
+
+void Log(
+  std::ostream& out,
+  ats::Errata const& errata,
+  int indent = 0
+) {
+  for ( ats::Errata::const_iterator spot = errata.begin(), limit = errata.end();
+        spot != limit;
+        ++spot
+  ) {
+    if (spot->m_id) {
+      if (indent) out << std::setw(indent) << std::setfill(' ') << "> ";
+      out << spot->m_id << " [" << spot->m_code << "]: " << spot->m_text
+          << std::endl
+        ;
+    }
+    if (spot->getErrata().size()) Log(out, spot->getErrata(), indent+2);
+  }
+}
+
+void LogToStdErr(ats::Errata const& errata) {
+  Log(std::cerr, errata);
+}
+
+int
+main(int argc, char** argv) {
+  Wccp::Cache wcp;
+
+  // Reading stdin support.
+  size_t in_size = 200;
+  char* in_buff = 0;
+  ssize_t in_count;
+
+  // Set up erratum support.
+  ats::Errata::registerSink(&LogToStdErr);
+
+  // getopt return values. Selected to avoid collisions with
+  // short arguments.
+  static int const OPT_ADDRESS = 257; ///< Bind to IP address option.
+  static int const OPT_HELP = 258; ///< Print help message.
+  static int const OPT_ROUTER = 259; ///< Seeded router IP address.
+  static int const OPT_SERVICE = 260; ///< Service group definition.
+
+  static option OPTIONS[] = {
+    { "address", 1, 0, OPT_ADDRESS },
+    { "router", 1, 0, OPT_ROUTER },
+    { "service", 1, 0, OPT_SERVICE },
+    { "help", 0, 0, OPT_HELP },
+    { 0, 0, 0, 0 } // required terminator.
+  };
+
+  in_addr ip_addr = { INADDR_ANY };
+  in_addr router_addr = { INADDR_ANY };
+
+  int zret; // getopt return.
+  int zidx; // option index.
+  bool fail = false;
+  char const* FAIL_MSG = "";
+
+  while (-1 != (zret = getopt_long_only(argc, argv, "", OPTIONS, &zidx))) {
+    switch (zret) {
+    case OPT_HELP:
+      FAIL_MSG = "Usage:";
+      fail = true;
+      break;
+    case '?':
+      FAIL_MSG = "Invalid option specified.";
+      fail = true;
+      break;
+    case OPT_ADDRESS:
+      if (0 == inet_aton(optarg, &ip_addr)) {
+        FAIL_MSG = "Invalid IP address specified for client.";
+        fail = true;
+      }
+      break;
+    case OPT_ROUTER:
+      if (0 == inet_aton(optarg, &router_addr)) {
+        FAIL_MSG = "Invalid IP address specified for router.";
+        fail = true;
+      }
+      break;
+    case OPT_SERVICE:
+      ats::Errata status = wcp.loadServicesFromFile(optarg);
+      if (!status) fail = true;
+      break;
+    }
+  }
+
+  if (fail) {
+    printf(USAGE_TEXT, FAIL_MSG);
+    return 1;
+  }
+
+  if (0 > wcp.open(ip_addr.s_addr)) {
+    fprintf(stderr, "Failed to open or bind socket.\n");
+    return 2;
+  }
+
+  static int const POLL_FD_COUNT = 2;
+  pollfd pfa[POLL_FD_COUNT];
+
+  // Poll on STDIN and the socket.
+  pfa[0].fd = STDIN_FILENO;
+  pfa[0].events = POLLIN;
+
+  pfa[1].fd = wcp.getSocket();
+  pfa[1].events = POLLIN;
+
+  wcp.housekeeping();
+
+  while (true) {
+    time_t dt = std::min(Wccp::TIME_UNIT, wcp.waitTime());
+    printf("Waiting %lu milliseconds\n", dt * 1000);
+    int n = poll(pfa, POLL_FD_COUNT, dt * 1000);
+    if (n < 0) { // error
+      perror("General polling failure");
+      return 5;
+    } else if (n > 0) { // things of interest happened
+      if (pfa[1].revents) {
+        if (pfa[1].revents & POLLIN) {
+          wcp.handleMessage();
+        } else {
+          fprintf(stderr, "Socket failure.\n");
+          return 6;
+        }
+      }
+      if (pfa[0].revents) {
+        if (pfa[0].revents & POLLIN) {
+          in_count = getline(&in_buff, &in_size, stdin);
+          fprintf(stderr, "Terminated from console.\n");
+          return 0;
+        }
+      }
+    } else { // timeout
+      wcp.housekeeping();
+    }
+  }
+}
diff --git a/lib/wccp/wccp-test-router.cc b/lib/wccp/wccp-test-router.cc
new file mode 100644
index 00000000..43fa70e7
--- /dev/null
+++ b/lib/wccp/wccp-test-router.cc
@@ -0,0 +1,157 @@
+/** @file
+    WCCP router simulation for testing.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+ */
+
+# include <stdio.h>
+# include <unistd.h>
+# include <stdarg.h>
+# include <memory.h>
+# include <strings.h>
+
+# include <getopt.h>
+
+# include "ats-wccp-api.h"
+
+# include <sys/socket.h>
+# include <netinet/in.h>
+# include <arpa/inet.h>
+
+# include <poll.h>
+
+# include <libconfig.h++>
+
+static char const USAGE_TEXT[] =
+  "%s\n"
+  "--address IP address to bind.\n"
+  "--help Print usage and exit.\n"
+  ;
+
+static bool Ready = true;
+
+inline void Error(char const* fmt, ...) {
+  va_list args;
+  va_start(args, fmt);
+  vfprintf(stderr, fmt, args);
+  Ready = false;
+}
+
+int
+main(int argc, char** argv) {
+  Wccp::Router wcp;
+
+  // Reading stdin support.
+  size_t in_size = 200;
+  char* in_buff = 0;
+  ssize_t in_count;
+
+  // getopt return values. Selected to avoid collisions with
+  // short arguments.
+  static int const OPT_ADDRESS = 257; ///< Bind to IP address option.
+  static int const OPT_HELP = 258; ///< Print help message.
+  static int const OPT_MD5 = 259; ///< MD5 key.
+
+  static option OPTIONS[] = {
+    { "address", 1, 0, OPT_ADDRESS },
+    { "md5", 1, 0, OPT_MD5 },
+    { "help", 0, 0, OPT_HELP },
+    { 0, 0, 0, 0 } // required terminator.
+  };
+
+  in_addr ip_addr = { INADDR_ANY };
+
+  int zret; // getopt return.
+  int zidx; // option index.
+  bool fail = false;
+//  char const* text; // Scratch pointer for config access.
+  char const* FAIL_MSG = "";
+
+  while (-1 != (zret = getopt_long_only(argc, argv, "", OPTIONS, &zidx))) {
+    switch (zret) {
+    case OPT_HELP:
+      FAIL_MSG = "Usage:";
+      fail = true;
+      break;
+    case '?':
+      FAIL_MSG = "Invalid option specified.";
+      fail = true;
+      break;
+    case OPT_ADDRESS:
+      if (0 == inet_aton(optarg, &ip_addr)) {
+        FAIL_MSG = "Invalid IP address specified for client.";
+        fail = true;
+      }
+      break;
+    case OPT_MD5:
+      wcp.useMD5Security(optarg);
+      break;
+    }
+  }
+
+  if (fail) {
+    printf(USAGE_TEXT, FAIL_MSG);
+    return 1;
+  }
+
+  if (!Ready) return 4;
+
+  if (0 > wcp.open(ip_addr.s_addr)) {
+    fprintf(stderr, "Failed to open or bind socket.\n");
+    return 2;
+  }
+
+  static int const POLL_FD_COUNT = 2;
+  pollfd pfa[POLL_FD_COUNT];
+
+  // Poll on STDIN and the socket.
+  pfa[0].fd = STDIN_FILENO;
+  pfa[0].events = POLLIN;
+
+  pfa[1].fd = wcp.get_socket();
+  pfa[1].events = POLLIN;
+
+  while (true) {
+    int n = poll(pfa, POLL_FD_COUNT, Wccp::TIME_UNIT * 1000);
+    if (n < 0) { // error
+      perror("General polling failure");
+      return 5;
+    } else if (n > 0) { // things of interest happened
+      if (pfa[1].revents) {
+        if (pfa[1].revents & POLLIN) {
+          wcp.handleMessage();
+          wcp.sendPendingMessages();
+        } else {
+          fprintf(stderr, "Socket failure.\n");
+          return 6;
+        }
+      }
+      if (pfa[0].revents) {
+        if (pfa[0].revents & POLLIN) {
+          in_count = getline(&in_buff, &in_size, stdin);
+          fprintf(stderr, "Terminated from console.\n");
+          return 0;
+        }
+      }
+    } else { // timeout
+      wcp.sendPendingMessages();
+    }
+  }
+  
+}
diff --git a/mgmt/AddConfigFilesHere.cc b/mgmt/AddConfigFilesHere.cc
new file mode 100644
index 00000000..cc6d169f
--- /dev/null
+++ b/mgmt/AddConfigFilesHere.cc
@@ -0,0 +1,89 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_platform.h"
+#include "Main.h"
+#include "MgmtUtils.h"
+#include "ConfigParse.h"
+#include "Diags.h"
+
+/****************************************************************************
+ *
+ *  AddConfigFilesHere.cc - Structs for config files and
+ *
+ *
+ ****************************************************************************/
+
+void
+testcall(char *foo, bool /* incVersion */)
+{
+  Debug("lm", "Received Callback that %s has changed\n", foo);
+}
+
+
+//
+// initializeRegistry()
+//
+// Code to initialze of registry of objects that represent
+//   Web Editable configuration files
+//
+// thread-safe: NO!  - Should only be executed once from the main
+//                     web interface thread, before any child
+//                     threads have been spawned
+void
+initializeRegistry()
+{
+  static int run_already = 0;
+
+  if (run_already == 0) {
+    run_already = 1;
+  } else {
+    ink_assert(!"Configuration Object Registry Initialized More than Once");
+  }
+
+  // NOTE: Logic that controls which files are not sync'd around the
+  // cluster is located in ClusterCom::constructSharedFilePacket
+
+  configFiles->addFile("log_hosts.config", false);
+  configFiles->addFile("logs_xml.config", false);
+  configFiles->addFile("storage.config", false);
+  configFiles->addFile("socks.config", false);
+  configFiles->addFile("proxy.pac", false);
+  configFiles->addFile("records.config", false);
+  configFiles->addFile("vaddrs.config", false);
+  configFiles->addFile("cache.config", false);
+  configFiles->addFile("icp.config", false);
+  configFiles->addFile("ip_allow.config", false);
+  configFiles->addFile("parent.config", false);
+  configFiles->addFile("remap.config", false);
+  configFiles->addFile("update.config", false);
+  configFiles->addFile("volume.config", false);
+  configFiles->addFile("hosting.config", false);
+  configFiles->addFile("congestion.config", false);
+  configFiles->addFile("plugin.config", false);
+  configFiles->addFile("splitdns.config", false);
+  configFiles->addFile("ssl_multicert.config", false);
+  configFiles->addFile("stats.config.xml", false);
+  configFiles->addFile("prefetch.config", false);
+  configFiles->registerCallback(testcall);
+}
diff --git a/mgmt/Alarms.cc b/mgmt/Alarms.cc
new file mode 100644
index 00000000..2ec2f89b
--- /dev/null
+++ b/mgmt/Alarms.cc
@@ -0,0 +1,576 @@
+/** @file
+
+  Function defs for the Alarms keeper.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "libts.h"
+#include "LocalManager.h"
+#include "MgmtUtils.h"
+#include "Alarms.h"
+#include "Diags.h"
+
+#if defined(MGMT_API)
+#include "TSControlMain.h"
+#include "Message.h"
+#include "Defs.h"
+#endif
+
+#include "P_RecCore.h"
+
+const char *alarmText[] = {
+  "Unknown Alarm",
+  "[TrafficManager] Traffic Server process was reset.",
+  "[TrafficManager] Traffic Server process established.",
+  "New Peer",
+  "Peer Died",
+  "Invalid Configuration",
+  "System Error",
+  "Log Space Crisis",
+  "Cache Error",
+  "Cache Warning",
+  "Logging Error",
+  "Logging Warning",
+  "Mgmt Debugging Alarm",
+  "Configuration File Update Failed",
+  "Unable to Establish Manager User-Interface Services",
+  "Ping Failure",
+  "",
+  "Add OEM Alarm",
+  "",
+  "HTTP Origin Server is Congested",
+  "Congested HTTP Origin Server is now Alleviated",
+  "",                           /* congested server */
+  ""                            /* alleviated server */
+};
+
+const int alarmTextNum = sizeof(alarmText) / sizeof(char *);
+
+// Return the alarm script directory. Use proxy.config.alarm.abs_path if it is
+// set, falling back to proxy.config.bin_path otherwise.
+static char *
+alarm_script_dir()
+{
+  char * path;
+
+  path = REC_readString("proxy.config.alarm.abs_path", NULL);
+  if (path && *path) {
+    return path;
+  }
+
+  return RecConfigReadBinDir();
+}
+
+Alarms::Alarms()
+{
+  cur_cb = 0;
+  cblist = ink_hash_table_create(InkHashTableKeyType_String);
+  local_alarms = ink_hash_table_create(InkHashTableKeyType_String);
+  remote_alarms = ink_hash_table_create(InkHashTableKeyType_String);
+  ink_mutex_init(&mutex, "alarms-mutex");
+  alarmOEMcount = minOEMkey;
+}                               /* End Alarms::Alarms */
+
+
+Alarms::~Alarms()
+{
+  ink_hash_table_destroy(cblist);
+  ink_hash_table_destroy_and_xfree_values(local_alarms);
+  ink_hash_table_destroy_and_xfree_values(remote_alarms);
+  ink_mutex_destroy(&mutex);
+}                               /* End Alarms::Alarms */
+
+
+void
+Alarms::registerCallback(AlarmCallbackFunc func)
+{
+  char cb_buf[80];
+
+  ink_mutex_acquire(&mutex);
+  snprintf(cb_buf, sizeof(cb_buf), "%d", cur_cb++);
+  Debug("alarm", "[Alarms::registerCallback] Registering Alarms callback\n");
+  ink_hash_table_insert(cblist, cb_buf, (void *) func);
+  ink_mutex_release(&mutex);
+}                               /* End Alarms::registerCallback */
+
+
+bool
+Alarms::isCurrentAlarm(alarm_t a, char *ip)
+{
+  bool ret = false;
+  char buf[80];
+  InkHashTableValue hash_value;
+
+  ink_mutex_acquire(&mutex);
+  if (!ip) {
+    snprintf(buf, sizeof(buf), "%d", a);
+  } else {
+    snprintf(buf, sizeof(buf), "%d-%s", a, ip);
+  }
+
+  if (!ip && ink_hash_table_lookup(local_alarms, buf, &hash_value) != 0) {
+    ret = true;
+  } else if (ip && ink_hash_table_lookup(remote_alarms, buf, &hash_value) != 0) {
+    ret = true;
+  }
+  ink_mutex_release(&mutex);
+  return ret;
+}                               /* End Alarms::isCurrentAlarm */
+
+
+void
+Alarms::resolveAlarm(alarm_t a, char *ip)
+{
+  char buf[80];
+  InkHashTableValue hash_value;
+
+  ink_mutex_acquire(&mutex);
+  if (!ip) {
+    snprintf(buf, sizeof(buf), "%d", a);
+  } else {
+    snprintf(buf, sizeof(buf), "%d-%s", a, ip);
+  }
+
+  if (!ip && ink_hash_table_lookup(local_alarms, buf, &hash_value) != 0) {
+    ink_hash_table_delete(local_alarms, buf);
+    ats_free(((Alarm *)hash_value)->description);
+    ats_free(hash_value);
+  } else if (ip && ink_hash_table_lookup(remote_alarms, buf, &hash_value) != 0) {
+    char buf2[1024];
+
+    snprintf(buf2, sizeof(buf2), "aresolv: %d\n", a);
+    if (!lmgmt->ccom->sendReliableMessage(inet_addr(ip), buf2, strlen(buf2))) {
+      ink_mutex_release(&mutex);
+      return;
+    }
+    ink_hash_table_delete(remote_alarms, buf);
+    ats_free(hash_value);
+  }
+  ink_mutex_release(&mutex);
+
+  return;
+}                               /* End Alarms::resolveAlarm */
+
+
+void
+Alarms::signalAlarm(alarm_t a, const char *desc, const char *ip)
+{
+  static time_t last_sent = 0;
+  static char prev_alarm_text[2048] = "";
+
+  int priority;
+  char buf[80];
+  Alarm *atmp;
+  InkHashTableValue hash_value;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  /* Assign correct priorities */
+  switch (a) {
+  case MGMT_ALARM_PROXY_CACHE_ERROR:
+    priority = 1;               // INKqa07595
+    break;
+  case MGMT_ALARM_PROXY_CACHE_WARNING:
+    return;
+  case MGMT_ALARM_PROXY_PEER_BORN:
+    priority = 3;
+    break;
+  case MGMT_ALARM_PROXY_PEER_DIED:
+    priority = 3;
+    break;
+  case MGMT_ALARM_PING_FAILURE:
+    priority = 1;
+    break;
+  case MGMT_ALARM_PROXY_PROCESS_DIED:
+    priority = 1;
+    break;
+  case MGMT_ALARM_PROXY_PROCESS_BORN:
+    mgmt_log(stderr, "[Alarms::signalAlarm] Server Process born\n");
+    priority = 2;
+    return;
+  case MGMT_ALARM_ADD_ALARM:
+    priority = 2;
+    break;
+  case MGMT_ALARM_PROXY_HTTP_CONGESTED_SERVER:
+  case MGMT_ALARM_PROXY_HTTP_ALLEVIATED_SERVER:
+    return;
+  default:
+    priority = 2;
+    break;
+  }
+
+  /* Quick hack to buffer repeat alarms and only send every 15 min */
+  if (desc && (priority == 1 || priority == 2) && !ip) {
+
+    if (strcmp(prev_alarm_text, desc) == 0) {   /* a repeated alarm */
+      time_t time_delta = time(0) - last_sent;
+      if (time_delta < 900) {
+        mgmt_log("[Alarms::signalAlarm] Skipping Alarm: '%s'\n", desc);
+        return;
+      } else {
+        last_sent = time(0);
+      }
+    } else {
+      ink_strlcpy(prev_alarm_text, desc, sizeof(prev_alarm_text));
+      last_sent = time(0);
+    }
+  }
+
+  Debug("alarm", "[Alarms::signalAlarm] Sending Alarm: '%s'", desc);
+
+  if (!desc) {
+    desc = (char *) getAlarmText(a);
+  }
+
+  /*
+   * Exec alarm bin for priority alarms everytime, regardless if they are
+   * potentially duplicates. However, only exec this for you own alarms,
+   * don't want every node in the cluster reporting the same alarm.
+   */
+  if (priority == 1 && !ip) {
+    execAlarmBin(desc);
+  }
+
+  ink_mutex_acquire(&mutex);
+  if (!ip) {
+    // if an OEM alarm, then must create the unique key alarm type;
+    // this key is used to hash the new OEM alarm descritption in the hash table
+    if (a == MGMT_ALARM_ADD_ALARM) {
+      a = (alarmOEMcount - minOEMkey) % (maxOEMkey - minOEMkey) + minOEMkey;
+      alarmOEMcount++;
+    }
+    snprintf(buf, sizeof(buf), "%d", a);
+    if (ink_hash_table_lookup(local_alarms, buf, &hash_value) != 0) {
+      ink_mutex_release(&mutex);
+      return;
+    }
+  } else {
+    snprintf(buf, sizeof(buf), "%d-%s", a, ip);
+    if (ink_hash_table_lookup(remote_alarms, buf, &hash_value) != 0) {
+      // Reset the seen flag so that we know the remote alarm is
+      //   still active
+      atmp = (Alarm *) hash_value;
+      atmp->seen = true;
+      ink_mutex_release(&mutex);
+      return;
+    }
+  }
+
+  atmp = (Alarm *)ats_malloc(sizeof(Alarm));
+  atmp->type = a;
+  atmp->linger = true;
+  atmp->seen = true;
+  atmp->priority = priority;
+  atmp->description = NULL;
+
+  if (!ip) {
+    atmp->local = true;
+    atmp->inet_address = 0;
+    ink_hash_table_insert(local_alarms, (InkHashTableKey) (buf), (atmp));
+  } else {
+    atmp->local = false;
+    atmp->inet_address = inet_addr(ip);
+    ink_hash_table_insert(remote_alarms, (InkHashTableKey) (buf), (atmp));
+  }
+
+  // Swap desc with time-stamped description.  Kinda hackish
+  // Temporary until we get a new
+  // alarm system in place.  TS 5.0.0, 02/08/2001
+  time_t my_time_t;
+  char my_ctime_str[32];
+  time(&my_time_t);
+  ink_ctime_r(&my_time_t, my_ctime_str);
+  char *p = my_ctime_str;
+  while (*p != '\n' && *p != '\0')
+    p++;
+  if (*p == '\n')
+    *p = '\0';
+  char *new_desc;
+  const size_t new_desc_size = sizeof(char) * (strlen(desc) + strlen(my_ctime_str) + 4);
+  ink_assert(new_desc = (char *) alloca(new_desc_size));
+  snprintf(new_desc, new_desc_size, "[%s] %s", my_ctime_str, desc);
+  desc = new_desc;
+  ats_free(atmp->description);
+  const size_t atmp_desc_size = sizeof(char) * (strlen(desc) + 1);
+  atmp->description = (char *)ats_malloc(atmp_desc_size);
+  ink_strlcpy(atmp->description, desc, atmp_desc_size);
+  ink_mutex_release(&mutex);
+
+#if defined(MGMT_API)
+  if (mgmt_alarm_event_q) {
+    // ADDED CODE here is where we Add to the queue of alarms one more
+    EventNoticeForm *new_alarm = (EventNoticeForm *)ats_malloc(sizeof(EventNoticeForm));
+
+    // allocated space copy over values
+    // remember AlarmID start from 0 exactly 1 off but everything else
+    // matches
+    new_alarm->alarm_t = (AlarmID) (atmp->type - 1);
+    new_alarm->priority = atmp->priority;
+    new_alarm->linger = atmp->linger;
+    new_alarm->local = atmp->local;
+    new_alarm->seen = atmp->seen;
+    if (!atmp->local)
+      new_alarm->inet_address = atmp->inet_address;
+    if (!atmp->description) {
+      new_alarm->description = NULL;
+    } else {
+      new_alarm->description = ats_strdup(atmp->description);
+    }
+
+    // new alarm is complete now add it
+    ink_mutex_acquire(&mgmt_alarm_event_q->mgmt_alarm_lock);
+
+    // enqueue
+    enqueue(mgmt_alarm_event_q->mgmt_alarm_q, new_alarm);
+
+    ink_mutex_release(&mgmt_alarm_event_q->mgmt_alarm_lock);
+  }
+#endif
+
+  for (entry = ink_hash_table_iterator_first(cblist, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(cblist, &iterator_state)) {
+    AlarmCallbackFunc func = (AlarmCallbackFunc) ink_hash_table_entry_value(remote_alarms, entry);
+    Debug("alarm", "[Alarms::signalAlarm] invoke callback for %d", a);
+    (*(func)) (a, ip, desc);
+  }
+
+  /* Priority 2 alarms get signalled if they are the first unsolved occurence. */
+  if (priority == 2 && !ip) {
+    execAlarmBin(desc);
+  }
+
+}                               /* End Alarms::signalAlarm */
+
+
+/*
+ * resetSeenFlag(...)
+ *   Function resets the "seen" flag for a given peer's alarms. This allows
+ * us to flush alarms that may have expired naturally or were dealt.
+ */
+void
+Alarms::resetSeenFlag(char *ip)
+{
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  ink_mutex_acquire(&mutex);
+  for (entry = ink_hash_table_iterator_first(remote_alarms, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(remote_alarms, &iterator_state)) {
+
+    char *key = (char *) ink_hash_table_entry_key(remote_alarms, entry);
+    Alarm *tmp = (Alarm *) ink_hash_table_entry_value(remote_alarms, entry);
+
+    if (strstr(key, ip)) {
+      tmp->seen = false;
+    }
+  }
+  ink_mutex_release(&mutex);
+  return;
+}                               /* End Alarms::resetSeenFlag */
+
+
+/*
+ * clearUnSeen(...)
+ *   This function is a sweeper functionto clean up those alarms that have
+ * been taken care of through otehr local managers or at the peer itself.
+ */
+void
+Alarms::clearUnSeen(char *ip)
+{
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  ink_mutex_acquire(&mutex);
+  for (entry = ink_hash_table_iterator_first(remote_alarms, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(remote_alarms, &iterator_state)) {
+
+    char *key = (char *) ink_hash_table_entry_key(remote_alarms, entry);
+    Alarm *tmp = (Alarm *) ink_hash_table_entry_value(remote_alarms, entry);
+
+    if (strstr(key, ip)) {      /* Make sure alarm is for correct ip */
+      if (!tmp->seen) {         /* Make sure we did not see it in peer's report */
+        ink_hash_table_delete(remote_alarms, key);      /* Safe in iterator? */
+        ats_free(tmp->description);
+        ats_free(tmp);
+      }
+    }
+  }
+  ink_mutex_release(&mutex);
+  return;
+}                               /* End Alarms::clearUnSeen */
+
+
+/*
+ * constructAlarmMessage(...)
+ *   This functions builds a message buffer for passing to peers. It basically
+ * takes the current list of local alarms and builds an alarm message.
+ */
+void
+Alarms::constructAlarmMessage(char *ip, char *message, int max)
+{
+  int n = 0, bsum = 0;
+  char buf[4096];
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if (!ip) {
+    return;
+  }
+  // Insert the standard mcast packet header
+  n = ClusterCom::constructSharedPacketHeader(message, ip, max);
+
+  ink_mutex_acquire(&mutex);
+  if (!((n + (int) strlen("type: alarm\n")) < max)) {
+    if (max >= 1) {
+      message[0] = '\0';
+    }
+    return;
+  }
+
+  ink_strlcpy(&message[n], "type: alarm\n", max - n);
+  n += strlen("type: alarm\n");
+  bsum = n;
+  for (entry = ink_hash_table_iterator_first(local_alarms, &iterator_state);
+       (entry != NULL && n < max); entry = ink_hash_table_iterator_next(local_alarms, &iterator_state)) {
+
+    Alarm *tmp = (Alarm *) ink_hash_table_entry_value(remote_alarms, entry);
+
+    if (tmp->description) {
+      snprintf(buf, sizeof(buf), "alarm: %d %s\n", tmp->type, tmp->description);
+    } else {
+      snprintf(buf, sizeof(buf), "alarm: %d No details available\n", tmp->type);
+    }
+
+    if (!((n + (int) strlen(buf)) < max)) {
+      break;
+    }
+    ink_strlcpy(&message[n], buf, max - n);
+    n += strlen(buf);
+  }
+
+  if (n == bsum) {              /* No alarms */
+    if (!((n + (int) strlen("alarm: none\n")) < max)) {
+      if (max >= 1) {
+        message[0] = '\0';
+      }
+      return;
+    }
+    ink_strlcpy(&message[n], "alarm: none\n", max - n);
+    n += strlen("alarm: none\n");
+  }
+  ink_mutex_release(&mutex);
+  return;
+}                               /* End Alarms::constructAlarmMessage */
+
+
+/*
+ * checkSystemNAlert(...)
+ *   This function should test the system and signal local alarms. Sending
+ * out remote notification commands if necessary.
+ */
+void
+Alarms::checkSystemNAlert()
+{
+  return;
+}                               /* End Alarms::checkSystenNAlert */
+
+void
+Alarms::execAlarmBin(const char *desc)
+{
+  xptr<char> bindir(alarm_script_dir());
+  char cmd_line[MAXPATHLEN];
+
+  xptr<char> alarm_bin(REC_readString("proxy.config.alarm.bin", NULL));
+  xptr<char> alarm_email_from_name;
+  xptr<char> alarm_email_from_addr;
+  xptr<char> alarm_email_to_addr;
+
+  pid_t pid;
+
+  // If there's no alarm script configured, don't even bother.
+  if (!alarm_bin || *alarm_bin == '\0') {
+    return;
+  }
+
+  // get email info
+  alarm_email_from_name = REC_readString("proxy.config.product_name", NULL);
+  alarm_email_from_addr = REC_readString("proxy.config.admin.admin_user", NULL);
+  alarm_email_to_addr = REC_readString("proxy.config.alarm_email", NULL);
+
+  ink_filepath_make(cmd_line, sizeof(cmd_line), bindir, alarm_bin);
+
+#ifdef POSIX_THREAD
+  if ((pid = fork()) < 0)
+#else
+  if ((pid = fork1()) < 0)
+#endif
+  {
+    mgmt_elog(stderr, errno, "[Alarms::execAlarmBin] Unable to fork1 process\n");
+  } else if (pid > 0) {         /* Parent */
+    int status;
+    bool script_done = false;
+    time_t timeout = (time_t) REC_readInteger("proxy.config.alarm.script_runtime", NULL);
+    if (!timeout) {
+      timeout = 5;              // default time = 5 secs
+    }
+    time_t time_delta = 0;
+    time_t first_time = time(0);
+    while (time_delta <= timeout) {
+      // waitpid will return child's pid if status is available
+      // or -1 if there is some problem; returns 0 if child status
+      // is not available
+      if (waitpid(pid, &status, WNOHANG) != 0) {
+        Debug("alarm", "[Alarms::execAlarmBin] child pid %" PRId64 " has status", (int64_t)pid);
+        script_done = true;
+        break;
+      }
+      time_delta = time(0) - first_time;
+    }
+    // need to kill the child script process if it's not complete
+    if (!script_done) {
+      Debug("alarm", "[Alarms::execAlarmBin] kill child pid %" PRId64 "", (int64_t)pid);
+      kill(pid, SIGKILL);
+      waitpid(pid, &status, 0); // to reap the thread
+    }
+  } else {
+    int res;
+    if (alarm_email_from_name && alarm_email_from_addr && alarm_email_to_addr) {
+      res = execl(cmd_line, (const char *)alarm_bin, desc, (const char *)alarm_email_from_name, (const char *)alarm_email_from_addr, (const char *)alarm_email_to_addr, (char*)NULL);
+    } else {
+      res = execl(cmd_line, (const char *)alarm_bin, desc, (char*)NULL);
+    }
+    _exit(res);
+  }
+}
+
+//
+// getAlarmText
+//
+// returns the corresponding text for the alarm id
+//
+const char *
+Alarms::getAlarmText(alarm_t id)
+{
+  if (id < alarmTextNum)
+    return alarmText[id];
+  else
+    return alarmText[0];      // "Unknown Alarm";
+}
diff --git a/mgmt/Alarms.h b/mgmt/Alarms.h
new file mode 100644
index 00000000..568d5826
--- /dev/null
+++ b/mgmt/Alarms.h
@@ -0,0 +1,146 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *
+ * Alarms.h
+ *   Class definitions for alarms keeper, class keeps a queue of Alarm
+ * objects. Can be polled on status of alarms.
+ *
+ * $Date: 2007-10-05 16:56:44 $
+ *
+ *
+ */
+
+#ifndef _ALARMS_H
+#define _ALARMS_H
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "ink_hash_table.h"
+#include "ink_mutex.h"
+
+
+/***********************************************************************
+ *
+ * MODULAIZATTION: if you are adding new alarms, please ensure to add
+ *                 the corresponding alarms in librecords/I_RecAlarms.h
+ *
+ *
+ ***********************************************************************/
+
+// When adding new alarms, please make sure add the
+//   corresponding alarm text
+//
+#define MGMT_ALARM_PROXY_PROCESS_DIED            1
+#define MGMT_ALARM_PROXY_PROCESS_BORN            2
+#define MGMT_ALARM_PROXY_PEER_BORN               3      /* Data is ip addr */
+#define MGMT_ALARM_PROXY_PEER_DIED               4
+#define MGMT_ALARM_PROXY_CONFIG_ERROR            5      /* Data is descriptive string */
+#define MGMT_ALARM_PROXY_SYSTEM_ERROR            6
+#define MGMT_ALARM_PROXY_LOG_SPACE_CRISIS        7
+#define MGMT_ALARM_PROXY_CACHE_ERROR             8
+#define MGMT_ALARM_PROXY_CACHE_WARNING           9
+#define MGMT_ALARM_PROXY_LOGGING_ERROR           10
+#define MGMT_ALARM_PROXY_LOGGING_WARNING         11
+#define MGMT_ALARM_MGMT_TEST                     13     /* to aid in debugging */
+#define MGMT_ALARM_CONFIG_UPDATE_FAILED          14
+#define MGMT_ALARM_WEB_ERROR                     15
+#define MGMT_ALARM_PING_FAILURE	                 16
+#define MGMT_ALARM_MGMT_CONFIG_ERROR             17
+#define MGMT_ALARM_ADD_ALARM                     18     /* OEM_ALARM */
+#define MGMT_ALARM_PROXY_LOG_SPACE_ROLLED        19     /* Alarm when log files will be rolled */
+#define MGMT_ALARM_PROXY_HTTP_CONGESTED_SERVER   20     /* Congestion control -- congested server */
+#define MGMT_ALARM_PROXY_HTTP_ALLEVIATED_SERVER  21     /* Congestion control -- alleviated server */
+#define MGMT_ALARM_PROXY_FTP_ERROR	         22
+
+#define MGMT_ALARM_SAC_SERVER_DOWN		400
+
+extern const char *alarmText[];
+extern const int alarmTextNum;
+
+
+/* OEM_ALARM: the alarm type is used as a key for hash tables;
+   need offset and modulo constants which will keep the unique
+   keys for OEM alarms within a specified range */
+const int minOEMkey = 1000;     // used as offset
+const int maxOEMkey = 6000;
+
+typedef int alarm_t;
+typedef void (*AlarmCallbackFunc) (alarm_t, const char *, const char *);
+
+typedef struct _alarm
+{
+  alarm_t type;
+  int priority;
+  bool linger;
+  bool local;
+  bool seen;
+  unsigned long inet_address;   /* If not local */
+  char *description;
+} Alarm;
+
+class Alarms
+{
+
+public:
+  Alarms();
+  ~Alarms();
+
+  void registerCallback(AlarmCallbackFunc func);
+  bool isCurrentAlarm(alarm_t a, char *ip = NULL);
+
+  void signalAlarm(alarm_t t, const char * desc, const char * ip = NULL);
+  void resolveAlarm(alarm_t a, char *ip = NULL);
+
+  void constructAlarmMessage(char *ip, char *message, int max);
+  void resetSeenFlag(char *ip);
+  void clearUnSeen(char *ip);
+
+  void checkSystemNAlert();
+  void execAlarmBin(const char *desc);
+
+  const char *getAlarmText(alarm_t id);
+  InkHashTable *getLocalAlarms()
+  {
+    return local_alarms;
+  }
+
+private:
+
+  int cur_cb;
+  ink_mutex mutex;
+
+  InkHashTable *cblist;
+  InkHashTable *local_alarms;
+  InkHashTable *remote_alarms;
+
+  /* counter is added in order to provide unique keys for OEM alarms,
+     since an OEM_ALARM type can be associated with many different
+     alarm descriptions */
+  int alarmOEMcount;
+
+};                              /* End class Alarms */
+
+#endif /* _ALARMS_H */
diff --git a/mgmt/BaseManager.cc b/mgmt/BaseManager.cc
new file mode 100644
index 00000000..1c7fa637
--- /dev/null
+++ b/mgmt/BaseManager.cc
@@ -0,0 +1,169 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************
+ *
+ * BaseManager.cc
+ *   Member function definitions for Base Manager class.
+ *
+ * $Date: 2003-06-01 18:37:18 $
+ *
+ *
+ */
+
+#include "libts.h"
+#include "BaseManager.h"
+
+
+BaseManager::BaseManager()
+{
+
+  /* Setup the event queue and callback tables */
+  mgmt_event_queue = create_queue();
+  mgmt_callback_table = ink_hash_table_create(InkHashTableKeyType_Word);
+
+}                               /* End BaseManager::BaseManager */
+
+
+BaseManager::~BaseManager()
+{
+
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  while (!queue_is_empty(mgmt_event_queue)) {
+    MgmtMessageHdr *mh = (MgmtMessageHdr *) dequeue(mgmt_event_queue);
+    ats_free(mh);
+  }
+  ats_free(mgmt_event_queue);
+
+  for (entry = ink_hash_table_iterator_first(mgmt_callback_table,
+                                             &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(mgmt_callback_table, &iterator_state)) {
+    MgmtCallbackList *tmp, *cb_list = (MgmtCallbackList *) entry;
+
+    for (tmp = cb_list->next; tmp; tmp = cb_list->next) {
+      ats_free(cb_list);
+      cb_list = tmp;
+    }
+    ats_free(cb_list);
+  }
+
+  return;
+}                               /* End BaseManager::~BaseManager */
+
+
+/*
+ * registerMgmtCallback(...)
+ *   Function to register callback's for various management events, such
+ * as shutdown, re-init, etc. The following callbacks should be
+ * registered:
+ *                MGMT_EVENT_SHUTDOWN  (graceful shutdown)
+ *                MGMT_EVENT_RESTART   (graceful reboot)
+ *                ...
+ *
+ *   Returns:   -1      on error(invalid event id passed in)
+ *               or     value
+ */
+int
+BaseManager::registerMgmtCallback(int msg_id, MgmtCallback cb, void *opaque_cb_data)
+{
+
+  MgmtCallbackList *cb_list;
+  InkHashTableValue hash_value;
+
+  if (ink_hash_table_lookup(mgmt_callback_table, (InkHashTableKey)(intptr_t)msg_id, &hash_value) != 0) {
+    cb_list = (MgmtCallbackList *) hash_value;
+  } else {
+    cb_list = NULL;
+  }
+
+  if (cb_list) {
+    MgmtCallbackList *tmp;
+
+    for (tmp = cb_list; tmp->next; tmp = tmp->next);
+    tmp->next = (MgmtCallbackList *)ats_malloc(sizeof(MgmtCallbackList));
+    tmp->next->func = cb;
+    tmp->next->opaque_data = opaque_cb_data;
+    tmp->next->next = NULL;
+  } else {
+    cb_list = (MgmtCallbackList *)ats_malloc(sizeof(MgmtCallbackList));
+    cb_list->func = cb;
+    cb_list->opaque_data = opaque_cb_data;
+    cb_list->next = NULL;
+    ink_hash_table_insert(mgmt_callback_table, (InkHashTableKey)(intptr_t)msg_id, cb_list);
+  }
+  return msg_id;
+}                               /* End BaseManager::registerMgmtCallback */
+
+
+/*
+ * signalMgmtEntity(...)
+ */
+int
+BaseManager::signalMgmtEntity(int msg_id, char *data_str)
+{
+
+  if (data_str) {
+    return signalMgmtEntity(msg_id, data_str, strlen(data_str) + 1);
+  } else {
+    return signalMgmtEntity(msg_id, NULL, 0);
+  }
+
+}                               /* End BaseManager::signalMgmtEntity */
+
+/*
+ * signalMgmtEntity(...)
+ */
+int
+BaseManager::signalMgmtEntity(int msg_id, char *data_raw, int data_len)
+{
+
+  MgmtMessageHdr *mh;
+
+  if (data_raw) {
+    mh = (MgmtMessageHdr *)ats_malloc(sizeof(MgmtMessageHdr) + data_len);
+    mh->msg_id = msg_id;
+    mh->data_len = data_len;
+    memcpy((char *) mh + sizeof(MgmtMessageHdr), data_raw, data_len);
+  } else {
+    mh = (MgmtMessageHdr *)ats_malloc(sizeof(MgmtMessageHdr));
+    mh->msg_id = msg_id;
+    mh->data_len = 0;
+  }
+  ink_assert(enqueue(mgmt_event_queue, mh));
+  return msg_id;
+
+}                               /* End BaseManager::signalMgmtEntity */
+
+
+void
+BaseManager::executeMgmtCallback(int msg_id, char *data_raw, int data_len)
+{
+  InkHashTableValue hash_value;
+  if (ink_hash_table_lookup(mgmt_callback_table, (InkHashTableKey)(intptr_t)msg_id, &hash_value) != 0) {
+    for (MgmtCallbackList * cb_list = (MgmtCallbackList *) hash_value; cb_list; cb_list = cb_list->next) {
+      (*((MgmtCallback) (cb_list->func))) (cb_list->opaque_data, data_raw, data_len);
+    }
+  }
+}
diff --git a/mgmt/BaseManager.h b/mgmt/BaseManager.h
new file mode 100644
index 00000000..0fa7a3c5
--- /dev/null
+++ b/mgmt/BaseManager.h
@@ -0,0 +1,144 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************
+ *
+ * BaseManager.h
+ *   Base Manager Class, base class for all managers.
+ *
+ * $Date: 2004-02-03 22:12:02 $
+ *
+ *
+ */
+
+#ifndef _BASE_MANAGER_H
+#define _BASE_MANAGER_H
+
+#include "ink_thread.h"
+#include "ink_mutex.h"
+#include "ink_llqueue.h"
+
+#include "MgmtDefs.h"
+
+
+/*******************************************
+ * used by LocalManager and in Proxy Main. *
+ */
+#define MAX_OPTION_SIZE        2048
+#define MAX_PROXY_SERVER_PORTS 2048
+#define MAX_ATTR_LEN           5
+/*******************************************/
+
+/*
+ * MgmtEvent defines.
+ */
+// Event flows: traffic manager -> traffic server
+#define MGMT_EVENT_SYNC_KEY              10000
+#define MGMT_EVENT_SHUTDOWN              10001
+#define MGMT_EVENT_RESTART               10002
+#define MGMT_EVENT_BOUNCE                10003
+#define MGMT_EVENT_CLEAR_STATS           10004
+#define MGMT_EVENT_CONFIG_FILE_UPDATE    10005
+#define MGMT_EVENT_PLUGIN_CONFIG_UPDATE  10006
+#define MGMT_EVENT_HTTP_CLUSTER_DELTA    10007
+#define MGMT_EVENT_ROLL_LOG_FILES        10008
+#define MGMT_EVENT_LIBRECORDS            10009
+#define MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION   10010
+// cache storage operations - each is a distinct event.
+// this is done because the code paths share nothing but boilerplate logic
+// so it's easier to do this than to try to encode an opcode and yet another
+// case statement.
+#define MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE     10011
+
+/***********************************************************************
+ *
+ * MODULARIZATION: if you are adding new signals, please ensure to add
+ *                 the corresponding signals in librecords/I_RecSignals.h
+ *
+ *
+ ***********************************************************************/
+
+// Signal flows: traffic server -> traffic manager
+#define MGMT_SIGNAL_PID                   0
+#define MGMT_SIGNAL_MACHINE_UP            1     /* Data is ip addr */
+#define MGMT_SIGNAL_MACHINE_DOWN          2
+#define MGMT_SIGNAL_CONFIG_ERROR          3     /* Data is descriptive string */
+#define MGMT_SIGNAL_SYSTEM_ERROR          4
+#define MGMT_SIGNAL_LOG_SPACE_CRISIS      5
+#define MGMT_SIGNAL_CONFIG_FILE_READ      6
+#define MGMT_SIGNAL_CACHE_ERROR           7
+#define MGMT_SIGNAL_CACHE_WARNING         8
+#define MGMT_SIGNAL_LOGGING_ERROR         9
+#define MGMT_SIGNAL_LOGGING_WARNING       10
+// Currently unused: 11
+// Currently unused: 12
+// Currently unused: 13
+#define MGMT_SIGNAL_PLUGIN_SET_CONFIG     14
+#define MGMT_SIGNAL_LOG_FILES_ROLLED      15
+#define MGMT_SIGNAL_LIBRECORDS            16
+#define MGMT_SIGNAL_HTTP_CONGESTED_SERVER   20  /* Congestion control -- congested server */
+#define MGMT_SIGNAL_HTTP_ALLEVIATED_SERVER  21  /* Congestion control -- alleviated server */
+
+#define INK_MGMT_SIGNAL_SAC_SERVER_DOWN			400
+
+typedef struct _mgmt_message_hdr_type
+{
+  int msg_id;
+  int data_len;
+} MgmtMessageHdr;
+
+
+typedef struct _mgmt_event_callback_list
+{
+  MgmtCallback func;
+  void *opaque_data;
+  struct _mgmt_event_callback_list *next;
+} MgmtCallbackList;
+
+
+class BaseManager
+{
+
+public:
+
+  BaseManager();
+  ~BaseManager();
+
+  int registerMgmtCallback(int msg_id, MgmtCallback func, void *opaque_callback_data = NULL);
+
+  int signalMgmtEntity(int msg_id, char *data_str = NULL);
+  int signalMgmtEntity(int msg_id, char *data_raw, int data_len);
+
+  LLQ *mgmt_event_queue;
+  InkHashTable *mgmt_callback_table;
+
+protected:
+
+  void executeMgmtCallback(int msg_id, char *data_raw, int data_len);
+
+private:
+
+};                              /* End class BaseManager */
+
+
+#endif /* _BASE_MANAGER_H */
diff --git a/mgmt/FileManager.cc b/mgmt/FileManager.cc
new file mode 100644
index 00000000..8480edec
--- /dev/null
+++ b/mgmt/FileManager.cc
@@ -0,0 +1,808 @@
+/** @file
+
+  Code for class to manage configuration updates
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "I_Layout.h"
+#include "FileManager.h"
+#include "Main.h"
+#include "Rollback.h"
+#include "WebMgmtUtils.h"
+#include "MgmtUtils.h"
+#include "WebGlobals.h"
+#include "ExpandingArray.h"
+#include "MgmtSocket.h"
+
+#define DIR_MODE S_IRWXU
+#define FILE_MODE S_IRWXU
+
+typedef fileEntry snapshot;
+
+const char *SnapshotStrings[] = { "Request Successful\n",
+  "No Snapshot Directory",
+  "Snapshot was not found\n",
+  "Creation of snapshot directory failed\n",
+  "Creation of snapshot file failed\n",
+  "Access to snapshot file Failed\n",
+  "Unable to write to snapshot file\n",
+  "Remove of Snapshot failed\n",
+  "Internal Error: Form Submission was invalid\n",
+  "No Snapshot Name Was Given\n",
+  "Invalid Snapshot name\n"
+};
+
+FileManager::FileManager()
+{
+  bindings = ink_hash_table_create(InkHashTableKeyType_String);
+  ink_assert(bindings != NULL);
+
+  ink_mutex_init(&accessLock, "File Manager Mutex");
+  ink_mutex_init(&cbListLock, "File Changed Callback Mutex");
+
+  xptr<char> snapshotDir(RecConfigReadSnapshotDir());
+
+  // Check to see if the directory already exists, if not create it.
+  if (access(snapshotDir, F_OK) == -1) {
+    if (mkdir(snapshotDir, DIR_MODE) < 0) {
+      // Failed to create the snapshot directory
+      mgmt_fatal(stderr, 0, "[FileManager::FileManager] Failed to create the snapshot directory %s: %s\n", (const char *)snapshotDir, strerror(errno));
+    }
+  }
+
+  this->managedDir = snapshotDir.release();
+  this->dirDescript = "snapshot";
+}
+
+// FileManager::~FileManager
+//
+//  There is only FileManager object in the process and it
+//     should never need to be destructed except at
+//     program exit
+//
+FileManager::~FileManager()
+{
+
+  callbackListable *cb;
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  // Let other operations finish and do not start any new ones
+  ink_mutex_acquire(&accessLock);
+
+  ats_free(this->managedDir);
+  this->managedDir = NULL;
+  this->dirDescript = NULL;
+
+  for (cb = cblist.pop(); cb != NULL; cb = cblist.pop()) {
+    delete cb;
+  }
+
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+
+    delete bind->rb;
+    delete bind;
+  }
+
+  ink_hash_table_destroy(bindings);
+
+
+  ink_mutex_destroy(&accessLock);
+  ink_mutex_destroy(&cbListLock);
+}
+
+
+// void FileManager::registerCallback(FileCallbackFunc func)
+//
+//  Adds a new callback function
+//    callbacks are made whenever a configuration file has
+//    changed
+//
+//  The callback function is responsible for free'ing
+//    the string the string it is passed
+//
+void
+FileManager::registerCallback(FileCallbackFunc func)
+{
+
+  callbackListable *newcb = new callbackListable();
+  ink_assert(newcb != NULL);
+  newcb->func = func;
+  ink_mutex_acquire(&cbListLock);
+  cblist.push(newcb);
+  ink_mutex_release(&cbListLock);
+}
+
+// void FileManager::addFile(char* baseFileName, const configFileInfo* file_info)
+//
+//  for the baseFile, creates a Rollback object for it
+//
+//  if file_info is not null, a WebFileEdit object is also created for
+//    the file
+//
+//  Pointers to the new objects are stored in the bindings hashtable
+//
+void
+FileManager::addFile(const char *baseFileName, bool root_access_needed)
+{
+
+  ink_assert(baseFileName != NULL);
+  fileBinding *newBind = new fileBinding;
+
+  newBind->rb = new Rollback(baseFileName, root_access_needed);
+
+  ink_mutex_acquire(&accessLock);
+  ink_hash_table_insert(bindings, baseFileName, newBind);
+  ink_mutex_release(&accessLock);
+}
+
+// bool FileManager::getRollbackObj(char* baseFileName, Rollback** rbPtr)
+//
+//  Sets rbPtr to the rollback object associated
+//    with the passed in baseFileName.
+//
+//  If there is no binding, falseis returned
+//
+bool
+FileManager::getRollbackObj(const char *baseFileName, Rollback ** rbPtr)
+{
+
+  InkHashTableValue lookup;
+  fileBinding *bind;
+  int found;
+
+  ink_mutex_acquire(&accessLock);
+  found = ink_hash_table_lookup(bindings, baseFileName, &lookup);
+  ink_mutex_release(&accessLock);
+
+  bind = (fileBinding *) lookup;
+  if (found == 0) {
+    return false;
+  } else {
+    *rbPtr = bind->rb;
+    return true;
+  }
+}
+
+// bool FileManager::fileChanged(const char* baseFileName)
+//
+//  Called by the Rollback class whenever a a config has changed
+//     Initiates callbacks
+//
+//
+void
+FileManager::fileChanged(const char *baseFileName, bool incVersion)
+{
+
+  callbackListable *cb;
+  char *filenameCopy;
+
+  ink_mutex_acquire(&cbListLock);
+
+
+  for (cb = cblist.head; cb != NULL; cb = cb->link.next) {
+    // Dup the string for each callback to be
+    //  defensive incase it modified when it is not supposed to be
+    filenameCopy = ats_strdup(baseFileName);
+    (*cb->func) (filenameCopy, incVersion);
+    ats_free(filenameCopy);
+  }
+  ink_mutex_release(&cbListLock);
+}
+
+// textBuffer* FileManager::filesManaged()
+//
+//  Returns a comma separated list of all files currently being
+//    managed by this object
+//
+//  CALLEE DELETES the returned space
+textBuffer *
+FileManager::filesManaged()
+{
+
+  textBuffer *result = new textBuffer(1024);
+  const char *currentName;
+  const char separator[] = "\n";
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  ink_mutex_acquire(&accessLock);
+  // To get a stable snap shot, we need to get the rollback
+  //   locks on all configuration files so the files
+  //   do not change from under us
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+    currentName = bind->rb->getBaseName();
+    ink_assert(currentName);
+
+    result->copyFrom(currentName, strlen(currentName));
+    result->copyFrom(separator, 1);
+  }
+  ink_mutex_release(&accessLock);
+
+  return result;
+}
+
+// void FileManager::doRollbackLocks(lockAction_t action)
+//
+//  Iterates through the Rollback objects we are managing
+//    and performs the parameter specified action on each lock
+//
+//  CALLLEE must hold this->accessLock
+//
+void
+FileManager::doRollbackLocks(lockAction_t action)
+{
+
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+
+    switch (action) {
+    case ACQUIRE_LOCK:
+      bind->rb->acquireLock();
+      break;
+    case RELEASE_LOCK:
+      bind->rb->releaseLock();
+      break;
+    default:
+      ink_assert(0);
+      break;
+    }
+  }
+}
+
+
+// void FileManager::abortRestore(const char* abortTo)
+//
+//  Iterates through the hash table of managed files
+//    and Rollsback one version until we get to the file
+//    named abortTo
+//
+//  It is a fatal error for any of the Rollbacks to
+//    fail since that leaves the configuration in an
+//    indeterminate state
+//
+//  CALLEE should be holding the locks on all the Rollback
+//    objects
+//
+void
+FileManager::abortRestore(const char *abortTo)
+{
+
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+  version_t currentVersion;
+
+  ink_assert(abortTo != NULL);
+
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+
+    // We are done
+    if (strcmp(abortTo, bind->rb->getBaseName()) == 0) {
+      return;
+    }
+
+    currentVersion = bind->rb->getCurrentVersion();
+    if (bind->rb->revertToVersion_ml(currentVersion - 1) != OK_ROLLBACK) {
+      mgmt_fatal(stderr, 0,
+                 "[FileManager::abortRestore] Unable to abort a failed snapshot restore.  Configuration files have been left in a inconsistent state\n");
+    }
+  }
+}
+
+
+// SnapResult FileManager::restoresSnap(const char* snapName)
+//
+//  Restores the snapshot with snapName.
+//
+//  If restoration fails, calls this->abortRestore
+//    to reset the configuraton state
+//
+SnapResult
+FileManager::restoreSnap(const char *snapName, const char *snapDir)
+{
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+  SnapResult result = SNAP_OK;
+  char *snapPath;
+  char *filePath = NULL;
+  textBuffer storage(2048);
+
+  snapPath = newPathString(snapDir, snapName);
+
+  ink_mutex_acquire(&accessLock);
+
+
+
+  if (access(snapPath, F_OK) == -1) {
+    delete[]snapPath;
+    ink_mutex_release(&accessLock);
+    return SNAP_NOT_FOUND;
+  }
+
+  // To get a stable restore, we need to get the rollback
+  //   locks on all configuration files so that the active files
+  //   do not change from under us
+  doRollbackLocks(ACQUIRE_LOCK);
+
+  // For each file, load the snap shot file and Roll a new version
+  //    of the active file
+  //
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+    filePath = newPathString(snapPath, bind->rb->getBaseName());
+    if (readFile(filePath, &storage) != SNAP_OK) {
+      abortRestore(bind->rb->getBaseName());
+      result = SNAP_FILE_ACCESS_FAILED;
+      break;
+    }
+
+    if (bind->rb->forceUpdate_ml(&storage) != OK_ROLLBACK) {
+      abortRestore(bind->rb->getBaseName());
+      result = SNAP_FILE_ACCESS_FAILED;
+      break;
+    }
+    delete[]filePath;
+    filePath = NULL;
+    storage.reUse();
+  }
+
+  doRollbackLocks(RELEASE_LOCK);
+  ink_mutex_release(&accessLock);
+
+  if (filePath != NULL) {
+    delete[]filePath;
+  }
+
+  delete[]snapPath;
+  return result;
+}
+
+
+
+
+// SnapResult FileManager::removeSnap(const char* snapName)
+//
+//
+SnapResult
+FileManager::removeSnap(const char *snapName, const char *snapDir)
+{
+  struct dirent *dirEntrySpace;
+  struct dirent *entryPtr;
+  DIR *dir;
+  char *snapPath;
+  char *snapFilePath;
+  bool unlinkFailed = false;
+  SnapResult result = SNAP_OK;
+  snapPath = newPathString(snapDir, snapName);
+
+  dir = opendir(snapPath);
+
+  if (dir == NULL) {
+    mgmt_log(stderr, "[FileManager::removeSnap] Unable to open snapshot %s: %s\n", snapName, strerror(errno));
+    delete[]snapPath;
+    return SNAP_NOT_FOUND;
+  }
+
+  dirEntrySpace = (struct dirent *)ats_malloc(sizeof(struct dirent) + pathconf(".", _PC_NAME_MAX) + 1);
+
+  while (readdir_r(dir, dirEntrySpace, &entryPtr) == 0) {
+    if (!entryPtr)
+      break;
+
+    if (strcmp(".", entryPtr->d_name) == 0 || strcmp("..", entryPtr->d_name) == 0) {
+      continue;
+    }
+
+    snapFilePath = newPathString(snapPath, entryPtr->d_name);
+
+    if (unlink(snapFilePath) < 0) {
+      mgmt_log(stderr, "[FileManager::removeSnap] Unlink failed for %s: %s\n", snapFilePath, strerror(errno));
+      unlinkFailed = true;
+      result = SNAP_REMOVE_FAILED;
+    }
+    delete[]snapFilePath;
+  }
+
+  ats_free(dirEntrySpace);
+  closedir(dir);
+
+  // If we managed to get everything, remove the directory
+  //
+  if (unlinkFailed == false) {
+    if (rmdir(snapPath) < 0) {
+      // strerror() isn't reentrant/thread-safe ... Problem? /leif
+      mgmt_log(stderr,
+               "[FileManager::removeSnap] Unable to remove snapshot directory %s: %s\n", snapPath, strerror(errno));
+      result = SNAP_REMOVE_FAILED;
+    } else {
+      result = SNAP_OK;
+    }
+  }
+
+  delete[]snapPath;
+  return result;
+}
+
+
+
+
+
+
+
+
+
+ //
+ //  Creates a new snapshot with snapName
+ //     Creates a directory named snapName in the snapshot directory
+ //     Places a copy of every config file into the new directory
+ //
+
+SnapResult
+FileManager::takeSnap(const char *snapName, const char *snapDir)
+{
+
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+  char *snapPath;
+  SnapResult callResult = SNAP_OK;
+  struct stat snapDirStat;
+
+
+  // Make sure the user sent us a name
+  if (snapName == NULL || *snapName == '\0') {
+    return SNAP_NO_NAME_GIVEN;
+  }
+
+  if (strchr(snapName, '/') != NULL) {
+    return SNAP_ILLEGAL_NAME;
+  }
+  // make sure the name is legal and cleaned up
+  if (!checkValidName(snapName)) {
+    return SNAP_ILLEGAL_NAME;
+  }
+
+
+  snapPath = newPathString(snapDir, snapName);
+
+  if (!stat(snapPath, &snapDirStat)) {
+    if (!S_ISDIR(snapDirStat.st_mode)) {
+      delete[]snapPath;
+      return SNAP_DIR_CREATE_FAILED;
+    }
+  }
+  if (mkdir(snapPath, DIR_MODE) < 0) {
+    mgmt_log(stderr, "[FileManager::takeSnap] Failed to create directory for snapshot %s: %s\n",
+             snapName, strerror(errno));
+    delete[]snapPath;
+    return SNAP_DIR_CREATE_FAILED;
+  }
+
+  ink_mutex_acquire(&accessLock);
+
+
+  // To get a stable snap shot, we need to get the rollback
+  //   locks on all configuration files so the files
+  //   do not change from under us
+  doRollbackLocks(ACQUIRE_LOCK);
+
+  // For each file, make a copy in the snap shot directory
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+    callResult = this->copyFile(bind->rb, snapPath);
+    if (callResult != SNAP_OK) {
+      // Remove the failed napshot so that we do not have a partial
+      //   one hanging around
+      if (removeSnap(snapName, snapDir) != SNAP_OK) {
+        mgmt_log(stderr,
+                 "[FileManager::takeSnap] Unable to remove failed snapshot %s.  This snapshot should be removed by hand\n",
+                 snapName);
+      }
+      break;
+    }
+  }
+
+  // Free all the locks since we are done
+  //
+  doRollbackLocks(RELEASE_LOCK);
+
+  ink_mutex_release(&accessLock);
+  delete[]snapPath;
+  return callResult;
+}
+
+
+
+
+
+
+
+
+//
+//  SnapResult FileManager::readFile(const char* filePath, textBuffer* contents)
+//
+//  Reads the specified file into the textBuffer.  Returns SNAP_OK if
+//    the file was successfully read and an error code otherwise
+//
+SnapResult
+FileManager::readFile(const char *filePath, textBuffer * contents)
+{
+  int diskFD;
+  int readResult;
+
+  ink_assert(contents != NULL);
+  diskFD = mgmt_open(filePath, O_RDONLY);
+
+  if (diskFD < 0) {
+    mgmt_log(stderr, "[FileManager::readFile] Open of snapshot file failed %s: %s\n", filePath, strerror(errno));
+    return SNAP_FILE_ACCESS_FAILED;
+  }
+
+  fcntl(diskFD, F_SETFD, 1);
+
+  while ((readResult = contents->readFromFD(diskFD)) > 0);
+  close(diskFD);
+
+  if (readResult < 0) {
+    mgmt_log(stderr, "[FileManager::readFile] Read of snapshot file failed %s: %s\n", filePath, strerror(errno));
+    return SNAP_FILE_ACCESS_FAILED;
+  }
+
+  return SNAP_OK;
+}
+
+//  SnapResult FileManager::copyFile(Rollback* rb, const char* snapPath)
+//
+//  Copies a file (represented by Rollback* rb) into a snapshot
+//    directory (snapPath)
+//
+SnapResult
+FileManager::copyFile(Rollback * rb, const char *snapPath)
+{
+  const char *fileName;
+  char *filePath;
+  int diskFD;
+  textBuffer *copyBuf;
+  SnapResult result;
+
+  fileName = rb->getBaseName();
+
+  // Load the current config into memory
+  //
+  // The Rollback lock is held by CALLEE
+  if (rb->getVersion_ml(rb->getCurrentVersion(), &copyBuf) != OK_ROLLBACK) {
+    mgmt_log(stderr, "[FileManager::copyFile] Unable to retrieve current version of %s\n", fileName);
+    return SNAP_FILE_ACCESS_FAILED;
+  }
+  // Create the new file
+  filePath = newPathString(snapPath, fileName);
+  diskFD = mgmt_open_mode(filePath, O_RDWR | O_CREAT, FILE_MODE);
+
+  if (diskFD < 0) {
+    mgmt_log(stderr, "[FileManager::copyFile] Unable to create snapshot file %s: %s\n", fileName, strerror(errno));
+    delete[]filePath;
+    delete copyBuf;
+    return SNAP_FILE_CREATE_FAILED;
+  }
+
+  fcntl(diskFD, F_SETFD, 1);
+
+  // Write the file contents to the copy
+  if (write(diskFD, copyBuf->bufPtr(), copyBuf->spaceUsed()) < 0) {
+    mgmt_log(stderr, "[FileManager::copyFile] Unable to write snapshot file %s: %s\n", fileName, strerror(errno));
+    result = SNAP_WRITE_FAILED;
+  } else {
+    result = SNAP_OK;
+  }
+
+  delete[]filePath;
+  delete copyBuf;
+  close(diskFD);
+  return result;
+}
+
+
+
+
+
+
+
+// SnapResult FileManager::WalkSnaps(ExpandingArray* snapList)
+//
+//   Iterates through the snapshot directory and adds every snapshot
+//     into the parameter snapList
+//
+//   CALLEE should be holding this->accessLock
+//
+SnapResult
+FileManager::WalkSnaps(ExpandingArray * snapList)
+{
+  MFresult r;
+
+  // The original code reset this->managedDir from proxy.config.snapshot_dir at this point. There doesn't appear to be
+  // any need for that, since managedDir is always set in the constructor and should not be changed.
+  ink_release_assert(this->managedDir != NULL);
+
+  ink_mutex_acquire(&accessLock);
+
+  r = WalkFiles(snapList);
+  //lmgmt->record_data ->setString("proxy.config.snapshot_dir", managedDir);
+
+  ink_mutex_release(&accessLock);
+  return (SnapResult) r;
+}
+
+
+
+// void FileManger::rereadConfig()
+//
+//   Interates through the list of managed files and
+//     calls Rollback::checkForUserUpdate on them
+//
+//   although it is tempting, DO NOT CALL FROM SIGNAL HANDLERS
+//      This function is not Async-Signal Safe.  It
+//      is thread safe
+void
+FileManager::rereadConfig()
+{
+  fileBinding *bind;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  ink_mutex_acquire(&accessLock);
+  for (entry = ink_hash_table_iterator_first(bindings, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(bindings, &iterator_state)) {
+
+    bind = (fileBinding *) ink_hash_table_entry_value(bindings, entry);
+    bind->rb->checkForUserUpdate();
+  }
+  ink_mutex_release(&accessLock);
+
+  // INKqa11910
+  // need to first check that enable_customizations is enabled
+  bool found;
+  int enabled = (int) REC_readInteger("proxy.config.body_factory.enable_customizations",
+                                      &found);
+  if (found && enabled) {
+    fileChanged("proxy.config.body_factory.template_sets_dir", true);
+  }
+}
+
+// void FileManager::displaySnapPage(textBuffer* output, httpResponse& answerHdr)
+//
+//  Generates an HTML page with the add form and the list
+//    of current snapshots
+//
+void
+FileManager::displaySnapOption(textBuffer * output)
+{
+  ExpandingArray snap_list(25, true);
+  SnapResult snap_result;
+  int num_snaps;
+
+  snap_result = WalkSnaps(&snap_list);
+  if (snap_result == SNAP_OK) {
+    num_snaps = snap_list.getNumEntries();
+    if (num_snaps > 0) {
+      addSelectOptions(output, &snap_list);
+    }
+  }
+}
+
+
+
+// void FileManger::createSelect(char* formVar, textBuffer* output, ExpandingArray*)
+//
+//  Creats a form with a select list.  The select options come
+//    from the expanding array.  Action is the value for the hidden input
+//    tag with name action
+//
+void
+FileManager::createSelect(char *action, textBuffer * output, ExpandingArray * options)
+{
+  const char formOpen[] = "<form method=POST action=\"/configure/snap_action.html\">\n<select name=snap>\n";
+  const char formEnd[] = "</form>";
+  const char submitButton[] = "<input type=submit value=\"";
+  const char hiddenInput[] = "<input type=hidden name=action value=";
+
+  int numOptions;
+
+  numOptions = options->getNumEntries();
+
+  if (numOptions > 0) {
+    output->copyFrom(formOpen, strlen(formOpen));
+    addSelectOptions(output, options);
+    output->copyFrom(hiddenInput, strlen(hiddenInput));
+    output->copyFrom(action, strlen(action));
+    output->copyFrom(">\n", 2);
+    output->copyFrom(submitButton, strlen(submitButton));
+    output->copyFrom(action, strlen(action));
+    output->copyFrom("\">\n", 3);
+    output->copyFrom(formEnd, strlen(formEnd));
+  }
+}
+
+
+// bool checkValidName(const char* name)
+//
+// if the string is invalid, ie. all white spaces or contains "irregular" chars,
+// returns 0 ; returns 1 if valid string
+//
+bool
+FileManager::checkValidName(const char *name)
+{
+  int length = strlen(name);
+
+  for (int i = 0; i < length; i++) {
+    if (!isprint(name[i]))
+      return false;             // invalid - unprintable char
+    if (!isspace(name[i]))
+      return true;              // has non-white space that is printable
+  }
+
+  return false;                 // all white spaces
+}
+
+
+//  int snapEntryCmpFunc(void* e1, void* e2)
+//
+//  a cmp function for snapshot structs that can
+//     used with qsort
+//
+//  compares c_time
+//
+int
+snapEntryCmpFunc(const void *e1, const void *e2)
+{
+  snapshot *entry1 = (snapshot *) * (void **) e1;
+  snapshot *entry2 = (snapshot *) * (void **) e2;
+
+  if (entry1->c_time > entry2->c_time) {
+    return 1;
+  } else if (entry1->c_time < entry2->c_time) {
+    return -1;
+  } else {
+    return 0;
+  }
+}
diff --git a/mgmt/FileManager.h b/mgmt/FileManager.h
new file mode 100644
index 00000000..ae353433
--- /dev/null
+++ b/mgmt/FileManager.h
@@ -0,0 +1,152 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _FILE_MANAGER_H_
+#define _FILE_MANAGER_H_
+
+/****************************************************************************
+ *
+ *  FileManager.h - Interface for class to manage configuration updates
+ *
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+
+#include "ink_hash_table.h"
+#include "List.h"
+#include "Rollback.h"
+#include "WebGlobals.h"
+#include "MultiFile.h"
+#include "WebHttpMessage.h"
+
+class Rollback;
+
+typedef void (*FileCallbackFunc) (char *, bool);
+
+struct callbackListable
+{
+public:
+  FileCallbackFunc func;
+  LINK(callbackListable, link);
+};
+
+struct fileBinding
+{
+  Rollback *rb;
+};
+
+// MUST match the ordering MFresult so that we can cast
+//   MFresult to SnapResult
+enum SnapResult
+{ SNAP_OK, SNAP_NO_DIR, SNAP_NOT_FOUND, SNAP_DIR_CREATE_FAILED,
+  SNAP_FILE_CREATE_FAILED, SNAP_FILE_ACCESS_FAILED,
+  SNAP_WRITE_FAILED, SNAP_REMOVE_FAILED,
+  SNAP_INVALID_SUBMISSION, SNAP_NO_NAME_GIVEN,
+  SNAP_ILLEGAL_NAME
+};
+
+enum lockAction_t
+{ ACQUIRE_LOCK, RELEASE_LOCK };
+class ExpandingArray;
+
+//  class FileManager
+//
+//  public functions:
+//
+//  addFile(char*, configFileInfo*) - adds a new config file to be
+//       managed.  A rollback object is created for the file.
+//       if the file_info ptr is not NULL, a WebFileEdit object
+//       is also created
+//
+//  getRollbckObj(char* , RollbackPtr**) - sets *rbPtr to Rollback
+//       object bound to baseFileName.  Returns true if there is
+//       a binding and false otherwise
+//
+//  getWFEObj(char*, WebFileEdit**)  - sets *wfePtr to WebFileEdit
+//       object bound to baseFileName.  Returns true if there is
+//       a binding and false otherwise
+//
+//  registerCallback(FileCallbackFunc) - registers a callback function
+//       which will get called everytime a managed file changes.  The
+//       callback function should NOT use the calling thread to
+//       access any Rollback objects or block for a long time
+//
+//  fileChanged(const char* baseFileName) - called by Rollback objects
+//       when their contents change.  Triggers callbacks to FileCallbackFuncs
+//
+//  filesManaged() - returns a textBuffer that contains a new line separated
+//       list of call files being managed by the FileManager.  CALLEE
+//       is responsible for deleting the returned object
+//
+//  takeSnap(const char* snapName) - creates a new snapshot with
+//       passed in name
+//
+//  restoreSnap(const char* snapName) - restores the specified snap
+//       shot
+//
+//  rereadConfig() - Checks all managed files to see if they have been
+//       updated
+//
+class FileManager:public MultiFile
+{
+public:
+  FileManager();
+  ~FileManager();
+  void addFile(const char *baseFileName, bool root_access_needed);
+  bool getRollbackObj(const char *baseFileName, Rollback ** rbPtr);
+  void registerCallback(FileCallbackFunc func);
+  void fileChanged(const char *baseFileName, bool incVersion);
+  textBuffer *filesManaged();
+  void rereadConfig();
+  //SnapResult takeSnap(const char* snapName);
+  SnapResult takeSnap(const char *snapName, const char *snapDir);
+  //SnapResult restoreSnap(const char* snapName);
+  SnapResult restoreSnap(const char *snapName, const char *snapDir);
+  //SnapResult removeSnap(const char* snapName);
+  SnapResult removeSnap(const char *snapName, const char *snapDir);
+  void displaySnapOption(textBuffer * output);
+  SnapResult WalkSnaps(ExpandingArray * snapList);
+
+private:
+  void doRollbackLocks(lockAction_t action);
+  ink_mutex accessLock;         // Protects bindings hashtable
+  ink_mutex cbListLock;         // Protects the CallBack List
+    DLL<callbackListable> cblist;
+  InkHashTable *bindings;
+  //InkHashTable* g_snapshot_directory_ht;
+  SnapResult copyFile(Rollback * rb, const char *snapPath);
+  SnapResult readFile(const char *filePath, textBuffer * contents);
+  void abortRestore(const char *abortTo);
+  void createSelect(char *action, textBuffer * output, ExpandingArray * options);
+  void snapErrorResponse(char *action, SnapResult error, textBuffer * output);
+  void snapSuccessResponse(char *action, textBuffer * output);
+  void generateRestoreConfirm(char *snapName, textBuffer * output);
+  bool checkValidName(const char *name);
+};
+
+int snapEntryCmpFunc(const void *e1, const void *e2);
+
+void initializeRegistry();      // implemented in AddConfigFilesHere.cc
+
+#endif
diff --git a/mgmt/LocalManager.cc b/mgmt/LocalManager.cc
new file mode 100644
index 00000000..42ddd790
--- /dev/null
+++ b/mgmt/LocalManager.cc
@@ -0,0 +1,1156 @@
+/** @file
+
+  The Local Manager process of the management system.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "libts.h"
+#include "ink_platform.h"
+#include "MgmtUtils.h"
+#include "I_Layout.h"
+#include "Compatability.h"
+#include "LocalManager.h"
+#include "MgmtSocket.h"
+#include "ink_cap.h"
+
+#if TS_USE_POSIX_CAP
+#include <sys/capability.h>
+#endif
+
+bool
+LocalManager::SetForDup(void * /* hIOCPort ATS_UNUSED */, long /* lTProcId ATS_UNUSED */, void * /* hTh ATS_UNUSED */)
+{
+  return true;
+}
+
+void
+LocalManager::mgmtCleanup()
+{
+  close_socket(process_server_sockfd);
+
+  // fix me for librecords
+
+  if (virt_map) {
+    virt_map->rl_downAddrs();   // We are bailing done need to worry about table
+  }
+#ifdef MGMT_USE_SYSLOG
+  closelog();
+#endif /* MGMT_USE_SYSLOG */
+  return;
+}
+
+
+void
+LocalManager::mgmtShutdown(bool mainThread)
+{
+  if (mainThread) {
+    mgmt_log("[LocalManager::mgmtShutdown] Executing shutdown request.\n");
+    processShutdown(mainThread);
+    // WCCP TBD: Send a shutdown message to routers.
+
+    if (processRunning()) {
+      waitpid(watched_process_pid, NULL, 0);
+#if defined(linux)
+      /* Avert race condition, wait for the thread to complete,
+         before getting one more restart process */
+      /* Workaround for bugid INKqa10060 */
+      mgmt_sleep_msec(1);
+#endif
+    }
+    mgmtCleanup();
+  } else {
+    mgmt_shutdown_outstanding = true;
+  }
+  return;
+}
+
+
+void
+LocalManager::processShutdown(bool mainThread)
+{
+  mgmt_log("[LocalManager::processShutdown] Executing process shutdown request.\n");
+  if (mainThread) {
+    sendMgmtMsgToProcesses(MGMT_EVENT_SHUTDOWN, "processShutdown[main]");
+  } else {
+    signalEvent(MGMT_EVENT_SHUTDOWN, "processShutdown");
+  }
+  return;
+}
+
+
+void
+LocalManager::processRestart()
+{
+  mgmt_log("[LocalManager::processRestart] Executing process restart request.\n");
+  signalEvent(MGMT_EVENT_RESTART, "processRestart");
+  return;
+}
+
+
+void
+LocalManager::processBounce()
+{
+  mgmt_log("[LocalManager::processBounce] Executing process bounce request.\n");
+  signalEvent(MGMT_EVENT_BOUNCE, "processBounce");
+  return;
+}
+
+void
+LocalManager::rollLogFiles()
+{
+  mgmt_log("[LocalManager::rollLogFiles] Log files are being rolled.\n");
+  signalEvent(MGMT_EVENT_ROLL_LOG_FILES, "rollLogs");
+  return;
+}
+
+void
+LocalManager::clearStats(const char *name)
+{
+  // Clear our records and then send the signal.  There is a race condition
+  //  here where our stats could get re-updated from the proxy
+  //  before the proxy clears them, but this should be rare.
+  //
+  //  Doing things in the opposite order prevents that race
+  //   but excerbates the race between the node and cluster
+  //   stats getting cleared by progation of clearing the
+  //   cluster stats
+  //
+  if (name) {
+      RecResetStatRecord(name);
+  } else {
+      RecResetStatRecord(RECT_NULL, true);
+  }
+
+  // If the proxy is not running, sending the signal does
+  //   not do anything.  Remove the stats file to make sure
+  //   that operation works even when the proxy is off
+  //
+  if (this->proxy_running == 0) {
+    xptr<char> statsPath(RecConfigReadPersistentStatsPath());
+    if (unlink(statsPath) < 0) {
+      if (errno != ENOENT) {
+        mgmt_log(stderr, "[LocalManager::clearStats] Unlink of %s failed : %s\n", (const char *)statsPath, strerror(errno));
+      }
+    }
+  }
+}
+
+// void LocalManager::syslogThrInit()
+//
+//    On the DEC, syslog is per thread.  This function
+//      allows a thread to init syslog with the appropriate
+//      configuration
+//
+void
+LocalManager::syslogThrInit()
+{
+}
+
+// bool LocalManager::clusterOk()
+//
+//   Returns false if the proxy has been up for more than
+//     30 seconds but is not reporting that it has clustered
+//     with all the nodes in cluster.config
+//
+//   Otherwise returns true
+//
+bool
+LocalManager::clusterOk()
+{
+  bool found = true;
+  bool result = true;
+
+  if (processRunning() == true && time(NULL) > (this->proxy_started_at + 30)
+      && this->ccom->alive_peers_count + 1 != REC_readInteger("proxy.process.cluster.nodes", &found)) {
+    result = false;
+  }
+
+  ink_assert(found);
+  return result;
+}
+
+bool
+LocalManager::processRunning()
+{
+  if (watched_process_fd != -1 && watched_process_pid != -1) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+LocalManager::LocalManager(bool proxy_on)
+  : BaseManager(), run_proxy(proxy_on)
+{
+  bool found;
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  xptr<char> bindir(RecConfigReadBinDir());
+
+#ifdef MGMT_USE_SYSLOG
+  syslog_facility = 0;
+#endif
+
+  ccom = NULL;
+  proxy_started_at = -1;
+  proxy_launch_count = 0;
+  manager_started_at = time(NULL);
+  proxy_launch_outstanding = false;
+  mgmt_shutdown_outstanding = false;
+  proxy_running = 0;
+  RecSetRecordInt("proxy.node.proxy_running", 0);
+  mgmt_sync_key = REC_readInteger("proxy.config.lm.sem_id", &found);
+  if (!found || mgmt_sync_key <= 0) {
+    mgmt_log("Bad or missing proxy.config.lm.sem_id value; using default id %d\n", MGMT_SEMID_DEFAULT);
+    mgmt_sync_key = MGMT_SEMID_DEFAULT;
+  }
+
+  virt_map = NULL;
+
+  RecInt http_enabled = REC_readInteger("proxy.config.http.enabled", &found);
+  ink_assert(found);
+  if (http_enabled && found) {
+    HttpProxyPort::loadConfig(m_proxy_ports);
+  }
+  HttpProxyPort::loadDefaultIfEmpty(m_proxy_ports);
+
+  // Get the default IP binding values.
+  RecHttpLoadIp("proxy.local.incoming_ip_to_bind", m_inbound_ip4, m_inbound_ip6);
+
+  if (access(Layout::get()->sysconfdir, R_OK) == -1) {
+    mgmt_elog(0, "[LocalManager::LocalManager] unable to access() directory '%s': %d, %s\n",
+	Layout::get()->sysconfdir, errno, strerror(errno));
+    mgmt_fatal(0, "[LocalManager::LocalManager] please set the 'TS_ROOT' environment variable\n");
+  }
+
+#if TS_HAS_WCCP
+  // Bind the WCCP address if present.
+  xptr<char> wccp_addr_str(REC_readString("proxy.config.wccp.addr", &found));
+  if (found && wccp_addr_str && *wccp_addr_str) {
+    wccp_cache.setAddr(inet_addr(wccp_addr_str));
+    mgmt_log("[LocalManager::LocalManager] WCCP identifying address set to %s.\n", static_cast<char*>(wccp_addr_str));
+  }
+
+  xptr<char> wccp_config_str(REC_readString("proxy.config.wccp.services", &found));
+  if (found && wccp_config_str && *wccp_config_str) {
+    bool located = true;
+    if (access(wccp_config_str, R_OK) == -1) {
+      wccp_config_str = Layout::relative_to(Layout::get()->sysconfdir, wccp_config_str);
+      if (access(wccp_config_str, R_OK) == -1 ) {
+        located = false;
+      }
+    }
+    if (located) {
+      wccp_cache.loadServicesFromFile(wccp_config_str);
+    } else { // not located
+      mgmt_log("[LocalManager::LocalManager] WCCP service configuration file '%s' was specified but could not be found in the file system.\n", static_cast<char*>(wccp_config_str));
+    }
+  }
+#endif
+
+  process_server_timeout_secs = REC_readInteger("proxy.config.lm.pserver_timeout_secs", &found);
+  process_server_timeout_msecs = REC_readInteger("proxy.config.lm.pserver_timeout_msecs", &found);
+  proxy_name = REC_readString("proxy.config.proxy_name", &found);
+  proxy_binary = REC_readString("proxy.config.proxy_binary", &found);
+  proxy_options = REC_readString("proxy.config.proxy_binary_opts", &found);
+  env_prep = REC_readString("proxy.config.env_prep", &found);
+
+  // Calculate proxy_binary from the absolute bin_path
+  absolute_proxy_binary = Layout::relative_to(bindir, proxy_binary);
+
+  // coverity[fs_check_call]
+  if (access(absolute_proxy_binary, R_OK | X_OK) == -1) {
+      mgmt_elog(0, "[LocalManager::LocalManager] Unable to access() '%s': %d, %s\n",
+              absolute_proxy_binary, errno, strerror(errno));
+      mgmt_fatal(0, "[LocalManager::LocalManager] please set bin path 'proxy.config.bin_path' \n");
+  }
+
+  internal_ticker = 0;
+
+  watched_process_pid = -1;
+
+  process_server_sockfd = -1;
+  watched_process_fd = -1;
+  proxy_launch_pid = -1;
+
+  return;
+}
+
+void
+LocalManager::initAlarm()
+{
+  alarm_keeper = new Alarms();
+}
+
+/*
+ * initCCom(...)
+ *   Function initializes cluster communication structure held by local manager.
+ */
+void
+LocalManager::initCCom(int mcport, char *addr, int rsport)
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  bool found;
+  IpEndpoint cluster_ip;    // ip addr of the cluster interface
+  ip_text_buffer clusterAddrStr;         // cluster ip addr as a String
+  char *intrName;               // Name of the interface we are to use
+  char hostname[1024];          // hostname of this machine
+  const char envVar[] = "PROXY_CLUSTER_ADDR=";
+  char *envBuf;
+
+  if (gethostname(hostname, 1024) < 0) {
+    mgmt_fatal(stderr, errno, "[LocalManager::initCCom] gethostname failed\n");
+  }
+  // Fetch which interface we are using for clustering
+  intrName = REC_readString("proxy.config.cluster.ethernet_interface", &found);
+  ink_assert(intrName != NULL);
+
+  found = mgmt_getAddrForIntr(intrName, &cluster_ip.sa);
+  if (found == false) {
+    mgmt_fatal(stderr, 0, "[LocalManager::initCCom] Unable to find network interface %s.  Exiting...\n", intrName);
+  } else if (!ats_is_ip4(&cluster_ip)) {
+    mgmt_fatal(stderr, 0, "[LocalManager::initCCom] Unable to find IPv4 network interface %s.  Exiting...\n", intrName);
+  }
+
+  ats_ip_ntop(&cluster_ip, clusterAddrStr, sizeof(clusterAddrStr));
+  Debug("ccom", "Cluster Interconnect is %s : %s\n", intrName, clusterAddrStr);
+
+  // This an awful hack but I could not come up with a better way to
+  //  pass the cluster address to the proxy
+  //    Set an environment variable so the proxy can find out
+  //    what the cluster address is.  The reason we need this awful
+  //    hack is that the proxy needs this info immediately at startup
+  //    and it is different for every machine in the cluster so using
+  //    a config variable will not work.
+  // The other options are to pass it on the command line to the proxy
+  //    which would require a fair bit of code modification since
+  //    what is passed right now is assumed to be static.  The other
+  //    is to write it to a separate file but that seems like a
+  //    lot of trouble for a 16 character string
+  // Set the cluster ip addr variable so that proxy can read it
+  //    and flush it to disk
+  const size_t envBuf_size = strlen(envVar) + strlen(clusterAddrStr) + 1;
+  envBuf = (char *)ats_malloc(envBuf_size);
+  ink_strlcpy(envBuf, envVar, envBuf_size);
+  ink_strlcat(envBuf, clusterAddrStr, envBuf_size);
+  ink_release_assert(putenv(envBuf) == 0);
+
+  ccom = new ClusterCom(ats_ip4_addr_cast(&cluster_ip), hostname, mcport, addr, rsport, rundir);
+  virt_map = new VMap(intrName, ats_ip4_addr_cast(&cluster_ip), &lmgmt->ccom->mutex);
+  virt_map->downAddrs();        // Just to be safe
+  ccom->establishChannels();
+  ats_free(intrName);
+
+  return;
+}
+
+/*
+ * initMgmtProcessServer()
+ *   sets up the server socket that proxy processes connect to.
+ */
+void
+LocalManager::initMgmtProcessServer()
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  char fpath[MAXPATHLEN];
+  int servlen, one = 1;
+  struct sockaddr_un serv_addr;
+
+#if TS_HAS_WCCP
+  if (wccp_cache.isConfigured()) {
+    if (0 > wccp_cache.open()) mgmt_log("Failed to open WCCP socket\n");
+  }
+#endif
+
+  ink_filepath_make(fpath, sizeof(fpath), rundir, LM_CONNECTION_SERVER);
+
+  unlink(fpath);
+  if ((process_server_sockfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+    mgmt_fatal(stderr, errno, "[LocalManager::initMgmtProcessServer] Unable to open socket exiting\n");
+  }
+
+  if (fcntl(process_server_sockfd, F_SETFD, 1) < 0) {
+    mgmt_fatal(stderr, errno, "[LocalManager::initMgmtProcessServer] Unable to set close-on-exec\n");
+  }
+
+  memset(&serv_addr, 0, sizeof(serv_addr));
+  serv_addr.sun_family = AF_UNIX;
+  ink_strlcpy(serv_addr.sun_path, fpath, sizeof(serv_addr.sun_path));
+#if defined(darwin) || defined(freebsd)
+  servlen = sizeof(struct sockaddr_un);
+#else
+  servlen = strlen(serv_addr.sun_path) + sizeof(serv_addr.sun_family);
+#endif
+  if (setsockopt(process_server_sockfd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(int)) < 0) {
+    mgmt_fatal(stderr, errno, "[LocalManager::initMgmtProcessServer] Unable to set socket options.\n");
+  }
+
+  if ((bind(process_server_sockfd, (struct sockaddr *) &serv_addr, servlen)) < 0) {
+    mgmt_fatal(stderr, errno, "[LocalManager::initMgmtProcessServer] Unable to bind '%s' socket exiting\n", fpath);
+  }
+
+  if ((listen(process_server_sockfd, 5)) < 0) {
+    mgmt_fatal(stderr, errno, "[LocalManager::initMgmtProcessServer] Unable to listen on socket exiting\n");
+  }
+
+  RecSetRecordInt("proxy.node.restarts.manager.start_time", manager_started_at);
+}
+
+/*
+ * pollMgmtProcessServer()
+ * -  Function checks the mgmt process server for new processes
+ *    and any requests sent from processes. It handles processes sent.
+ */
+void
+LocalManager::pollMgmtProcessServer()
+{
+  int num;
+  struct timeval timeout;
+  struct sockaddr_in clientAddr;
+  fd_set fdlist;
+#if TS_HAS_WCCP
+  int wccp_fd = wccp_cache.getSocket();
+#endif
+
+  while (1) {
+    // poll only
+    timeout.tv_sec = process_server_timeout_secs;
+    timeout.tv_usec = process_server_timeout_msecs * 1000;
+    FD_ZERO(&fdlist);
+    FD_SET(process_server_sockfd, &fdlist);
+    if (watched_process_fd != -1) FD_SET(watched_process_fd, &fdlist);
+
+#if TS_HAS_WCCP
+    // Only run WCCP housekeeping while we have a server process.
+    // Note: The WCCP socket is opened iff WCCP is configured.
+    if (wccp_fd != ts::NO_FD && watched_process_fd != ts::NO_FD) {
+      wccp_cache.housekeeping();
+      time_t wccp_wait = wccp_cache.waitTime();
+      if (wccp_wait < process_server_timeout_secs) timeout.tv_sec = wccp_wait;
+      FD_SET(wccp_cache.getSocket(), &fdlist);
+    }
+#endif
+
+    num = mgmt_select(FD_SETSIZE, &fdlist, NULL, NULL, &timeout);
+    if (num == 0) {             /* Have nothing */
+      break;
+    } else if (num > 0) {       /* Have something */
+#if TS_HAS_WCCP
+      if (wccp_fd != ts::NO_FD && FD_ISSET(wccp_fd, &fdlist)) {
+        wccp_cache.handleMessage();
+        --num;
+      }
+#endif
+      if (FD_ISSET(process_server_sockfd, &fdlist)) {   /* New connection */
+        int clientLen = sizeof(clientAddr);
+        int new_sockfd = mgmt_accept(process_server_sockfd,
+                                     (struct sockaddr *) &clientAddr,
+                                     &clientLen);
+        MgmtMessageHdr *mh;
+        int data_len;
+
+        mgmt_log(stderr, "[LocalManager::pollMgmtProcessServer] New process connecting fd '%d'\n", new_sockfd);
+
+        if (new_sockfd < 0) {
+          mgmt_elog(stderr, errno, "[LocalManager::pollMgmtProcessServer] ==> ");
+        } else if (!processRunning()) {
+          watched_process_fd = new_sockfd;
+          data_len = sizeof(mgmt_sync_key);
+          mh = (MgmtMessageHdr *) alloca(sizeof(MgmtMessageHdr) + data_len);
+          mh->msg_id = MGMT_EVENT_SYNC_KEY;
+          mh->data_len = data_len;
+          memcpy((char *) mh + sizeof(MgmtMessageHdr), &mgmt_sync_key, data_len);
+          if (mgmt_write_pipe(new_sockfd, (char *) mh, sizeof(MgmtMessageHdr) + data_len) <= 0) {
+            mgmt_elog(errno, "[LocalManager::pollMgmtProcessServer] Error writing sync key message!\n");
+            close_socket(new_sockfd);
+            watched_process_fd = watched_process_pid = -1;
+          }
+        } else {
+          close_socket(new_sockfd);
+        }
+        --num;
+      }
+
+      if (ts::NO_FD != watched_process_fd && FD_ISSET(watched_process_fd, &fdlist)) {
+        int res;
+        MgmtMessageHdr mh_hdr;
+        MgmtMessageHdr *mh_full;
+        char *data_raw;
+
+        // read the message
+        if ((res = mgmt_read_pipe(watched_process_fd, (char *) &mh_hdr, sizeof(MgmtMessageHdr))) > 0) {
+          mh_full = (MgmtMessageHdr *) alloca(sizeof(MgmtMessageHdr) + mh_hdr.data_len);
+          memcpy(mh_full, &mh_hdr, sizeof(MgmtMessageHdr));
+          data_raw = (char *) mh_full + sizeof(MgmtMessageHdr);
+          if ((res = mgmt_read_pipe(watched_process_fd, data_raw, mh_hdr.data_len)) > 0) {
+            handleMgmtMsgFromProcesses(mh_full);
+          } else if (res < 0) {
+            mgmt_fatal(0, "[LocalManager::pollMgmtProcessServer] Error in read (errno: %d)\n", -res);
+          }
+        } else if (res < 0) {
+          mgmt_fatal(0, "[LocalManager::pollMgmtProcessServer] Error in read (errno: %d)\n", -res);
+        }
+        // handle EOF
+        if (res == 0) {
+          int estatus;
+          pid_t tmp_pid = watched_process_pid;
+
+          Debug("lm", "[LocalManager::pollMgmtProcessServer] Lost process EOF!\n");
+
+          close_socket(watched_process_fd);
+
+          waitpid(watched_process_pid, &estatus, 0);    /* Reap child */
+          if (WIFSIGNALED(estatus)) {
+            int sig = WTERMSIG(estatus);
+            mgmt_elog(stderr, 0, "[LocalManager::pollMgmtProcessServer] "
+                      "Server Process terminated due to Sig %d: %s\n", sig, strsignal(sig));
+          }
+
+          if (lmgmt->run_proxy) {
+            mgmt_elog(0, "[Alarms::signalAlarm] Server Process was reset\n");
+            lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_PROCESS_DIED, NULL);
+          } else {
+            mgmt_log("[TrafficManager] Server process shutdown\n");
+          }
+
+          watched_process_fd = watched_process_pid = -1;
+          if (tmp_pid != -1) {  /* Incremented after a pid: message is sent */
+            proxy_running--;
+          }
+          proxy_started_at = -1;
+          RecSetRecordInt("proxy.node.proxy_running", 0);
+        }
+
+        num--;
+
+      }
+      ink_assert(num == 0);     /* Invariant */
+
+    } else if (num < 0) {       /* Error */
+      mgmt_elog(stderr, 0, "[LocalManager::pollMgmtProcessServer] select failed or was interrupted (%d)\n", errno);
+    }
+
+  }
+}
+
+
+void
+LocalManager::handleMgmtMsgFromProcesses(MgmtMessageHdr * mh)
+{
+  char *data_raw = (char *) mh + sizeof(MgmtMessageHdr);
+  switch (mh->msg_id) {
+  case MGMT_SIGNAL_PID:
+    watched_process_pid = *((pid_t *) data_raw);
+    lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_PROCESS_BORN, NULL);
+    proxy_running++;
+    proxy_launch_pid = -1;
+    proxy_launch_outstanding = false;
+    RecSetRecordInt("proxy.node.proxy_running", 1);
+    break;
+
+  case MGMT_SIGNAL_MACHINE_UP:
+    /*
+       {
+       struct in_addr addr;
+       addr.s_addr = *((unsigned int*)data_raw);
+       alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_PEER_BORN, inet_ntoa(addr));
+       }
+     */
+    break;
+  case MGMT_SIGNAL_MACHINE_DOWN:
+    /*
+       {
+       struct in_addr addr;
+       addr.s_addr = *((unsigned int*)data_raw);
+       alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_PEER_DIED, inet_ntoa(addr));
+       }
+     */
+    break;
+
+    // FIX: This is very messy need to correlate mgmt signals and
+    // alarms better
+  case MGMT_SIGNAL_CONFIG_ERROR:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_CONFIG_ERROR, data_raw);
+    break;
+  case MGMT_SIGNAL_SYSTEM_ERROR:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_SYSTEM_ERROR, data_raw);
+    break;
+  case MGMT_SIGNAL_LOG_SPACE_CRISIS:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_LOG_SPACE_CRISIS, data_raw);
+    break;
+  case MGMT_SIGNAL_CACHE_ERROR:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_CACHE_ERROR, data_raw);
+    break;
+  case MGMT_SIGNAL_CACHE_WARNING:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_CACHE_WARNING, data_raw);
+    break;
+  case MGMT_SIGNAL_LOGGING_ERROR:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_LOGGING_ERROR, data_raw);
+    break;
+  case MGMT_SIGNAL_LOGGING_WARNING:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_LOGGING_WARNING, data_raw);
+    break;
+  case MGMT_SIGNAL_CONFIG_FILE_READ:
+    mgmt_log(stderr, "[LocalManager::handleMgmtMsgFromProcesses] File done '%d'\n", data_raw);
+    break;
+  case MGMT_SIGNAL_PLUGIN_SET_CONFIG:
+    {
+      char var_name[256];
+      char var_value[256];
+      MgmtType stype;
+      // stype is an enum type, so cast to an int* to avoid warnings. /leif
+      int tokens = sscanf(data_raw, "%255s %d %255s", var_name, (int *) &stype, var_value);
+      if (tokens != 3) {
+        stype = MGMT_INVALID;
+      }
+      switch (stype) {
+      case MGMT_INT:
+        RecSetRecordInt(var_name, ink_atoi64(var_value));
+        break;
+      case MGMT_COUNTER:
+      case MGMT_FLOAT:
+      case MGMT_STRING:
+      case MGMT_INVALID:
+      default:
+        mgmt_elog(stderr, 0,
+                  "[LocalManager::handleMgmtMsgFromProcesses] " "Invalid plugin set-config msg '%s'\n", data_raw);
+        break;
+      }
+    }
+  case MGMT_SIGNAL_LOG_FILES_ROLLED:
+    {
+      Debug("lm", "Rolling logs %s", (char *) data_raw);
+      break;
+    }
+  case MGMT_SIGNAL_LIBRECORDS:
+    if (mh->data_len > 0) {
+      executeMgmtCallback(MGMT_SIGNAL_LIBRECORDS, data_raw, mh->data_len);
+    } else {
+      executeMgmtCallback(MGMT_SIGNAL_LIBRECORDS, NULL, 0);
+    }
+    break;
+    // Congestion Control - begin
+  case MGMT_SIGNAL_HTTP_CONGESTED_SERVER:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_HTTP_CONGESTED_SERVER, data_raw);
+    break;
+  case MGMT_SIGNAL_HTTP_ALLEVIATED_SERVER:
+    alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_HTTP_ALLEVIATED_SERVER, data_raw);
+    break;
+    // Congestion Control - end
+  case INK_MGMT_SIGNAL_SAC_SERVER_DOWN:
+    alarm_keeper->signalAlarm(MGMT_ALARM_SAC_SERVER_DOWN, data_raw);
+    break;
+
+  default:
+    break;
+  }
+}
+
+
+void
+LocalManager::sendMgmtMsgToProcesses(int msg_id, const char *data_str)
+{
+  sendMgmtMsgToProcesses(msg_id, data_str, strlen(data_str) + 1);
+  return;
+}
+
+
+void
+LocalManager::sendMgmtMsgToProcesses(int msg_id, const char *data_raw, int data_len)
+{
+  MgmtMessageHdr *mh;
+
+  mh = (MgmtMessageHdr *) alloca(sizeof(MgmtMessageHdr) + data_len);
+  mh->msg_id = msg_id;
+  mh->data_len = data_len;
+  memcpy((char *) mh + sizeof(MgmtMessageHdr), data_raw, data_len);
+  sendMgmtMsgToProcesses(mh);
+  return;
+}
+
+
+void
+LocalManager::sendMgmtMsgToProcesses(MgmtMessageHdr * mh)
+{
+  switch (mh->msg_id) {
+  case MGMT_EVENT_SHUTDOWN:{
+      run_proxy = false;
+      if (lmgmt->virt_map) {
+        lmgmt->virt_map->downAddrs();   /* Down all known addrs to be safe */
+      }
+      this->closeProxyPorts();
+      break;
+    }
+  case MGMT_EVENT_RESTART:
+    run_proxy = true;
+    listenForProxy();
+    return;
+  case MGMT_EVENT_BOUNCE:      /* Just bouncing the cluster, have it exit well restart */
+    mh->msg_id = MGMT_EVENT_SHUTDOWN;
+    break;
+  case MGMT_EVENT_ROLL_LOG_FILES:
+    mgmt_log("[LocalManager::SendMgmtMsgsToProcesses]Event is being constructed .\n");
+    break;
+  case MGMT_EVENT_CONFIG_FILE_UPDATE:
+  case MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION:
+    bool found;
+    char *fname;
+    Rollback *rb;
+    char *data_raw;
+
+    data_raw = (char *) mh + sizeof(MgmtMessageHdr);
+    fname = REC_readString(data_raw, &found);
+
+    RecT rec_type;
+    if (RecGetRecordType(data_raw, &rec_type) == REC_ERR_OKAY && rec_type == RECT_CONFIG) {
+      RecSetSyncRequired(data_raw);
+    } else {
+      mgmt_elog(stderr, 0, "[LocalManager:sendMgmtMsgToProcesses] Unknown file change: '%s'\n", data_raw);
+    }
+    ink_assert(found);
+    if (!(configFiles->getRollbackObj(fname, &rb)) &&
+        (strcmp(data_raw, "proxy.config.cluster.cluster_configuration") != 0) &&
+        (strcmp(data_raw, "proxy.config.arm.acl_filename_master") != 0) &&
+        (strcmp(data_raw, "proxy.config.body_factory.template_sets_dir") != 0)) {
+      mgmt_elog(stderr, 0, "[LocalManager::sendMgmtMsgToProcesses] "
+                "Invalid 'data_raw' for MGMT_EVENT_CONFIG_FILE_UPDATE\n");
+      ink_assert(false);
+    }
+    ats_free(fname);
+    break;
+  }
+
+  if (watched_process_fd != -1) {
+    if (mgmt_write_pipe(watched_process_fd, (char *) mh, sizeof(MgmtMessageHdr) + mh->data_len) <= 0) {
+      // In case of Linux, sometimes when the TS dies, the connection between TS and TM
+      // is not closed properly. the socket does not receive an EOF. So, the TM does
+      // not detect that the connection and hence TS has gone down. Hence it still
+      // tries to send a message to TS, but encounters an error and enters here
+      // Also, ensure that this whole thing is done only once because there will be a
+      // deluge of message in the traffic.log otherwise
+
+      static pid_t check_prev_pid = watched_process_pid;
+      static pid_t check_current_pid = watched_process_pid;
+      if (check_prev_pid != watched_process_pid) {
+        check_prev_pid = watched_process_pid;
+        check_current_pid = watched_process_pid;
+      }
+
+      if (check_prev_pid == check_current_pid) {
+        check_current_pid = -1;
+        int lerrno = errno;
+        mgmt_elog(stderr, errno, "[LocalManager::sendMgmtMsgToProcesses] Error writing message\n");
+        if (lerrno == ECONNRESET || lerrno == EPIPE) {  // Connection closed by peer or Broken pipe
+          if ((kill(watched_process_pid, 0) < 0) && (errno == ESRCH)) {
+            // TS is down
+            pid_t tmp_pid = watched_process_pid;
+            close_socket(watched_process_fd);
+            mgmt_elog(stderr, 0, "[LocalManager::pollMgmtProcessServer] " "Server Process has been terminated\n");
+            if (lmgmt->run_proxy) {
+              mgmt_elog(0, "[Alarms::signalAlarm] Server Process was reset\n");
+              lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_PROCESS_DIED, NULL);
+            } else {
+              mgmt_log("[TrafficManager] Server process shutdown\n");
+            }
+            watched_process_fd = watched_process_pid = -1;
+            if (tmp_pid != -1) {        /* Incremented after a pid: message is sent */
+              proxy_running--;
+            }
+            proxy_started_at = -1;
+            RecSetRecordInt("proxy.node.proxy_running", 0);
+            // End of TS down
+          } else {
+            // TS is still up, but the connection is lost
+            const char *err_msg =
+              "The TS-TM connection is broken for some reason. Either restart TS and TM or correct this error for TM to display TS statistics correctly";
+            lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_SYSTEM_ERROR, err_msg);
+          }
+
+          // check if the TS is down, by checking the pid
+          // if TS is down, then,
+          //     raise an alarm
+          //     set the variables so that TS is restarted later
+          // else (TS is still up)
+          //     raise an alarm stating the problem
+        }
+      }
+    }
+  }
+}
+
+
+void
+LocalManager::signalFileChange(const char *var_name, bool incVersion)
+{
+  if (incVersion) {
+    signalEvent(MGMT_EVENT_CONFIG_FILE_UPDATE, var_name);
+  }
+  else {
+    signalEvent(MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION, var_name);
+  }
+  return;
+}
+
+
+void
+LocalManager::signalEvent(int msg_id, const char *data_str)
+{
+  signalEvent(msg_id, data_str, strlen(data_str) + 1);
+  return;
+}
+
+
+void
+LocalManager::signalEvent(int msg_id, const char *data_raw, int data_len)
+{
+  MgmtMessageHdr *mh;
+
+  mh = (MgmtMessageHdr *)ats_malloc(sizeof(MgmtMessageHdr) + data_len);
+  mh->msg_id = msg_id;
+  mh->data_len = data_len;
+  memcpy((char *) mh + sizeof(MgmtMessageHdr), data_raw, data_len);
+  ink_assert(enqueue(mgmt_event_queue, mh));
+
+  return;
+}
+
+
+/*
+ * processEventQueue()
+ *   Function drains and processes the mgmt event queue
+ * notifying any registered callback functions and performing
+ * any mgmt tasks for each event.
+ */
+void
+LocalManager::processEventQueue()
+{
+  bool handled_by_mgmt;
+
+  while (!queue_is_empty(mgmt_event_queue)) {
+    handled_by_mgmt = false;
+
+    MgmtMessageHdr *mh = (MgmtMessageHdr *) dequeue(mgmt_event_queue);
+    char *data_raw = (char *) mh + sizeof(MgmtMessageHdr);
+
+    // check if we have a local file update
+    if (mh->msg_id == MGMT_EVENT_CONFIG_FILE_UPDATE || mh->msg_id == MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION) {
+      // records.config
+      if (!(strcmp(data_raw, "records.config"))) {
+        bool incVersion = mh->msg_id == MGMT_EVENT_CONFIG_FILE_UPDATE;
+        if (RecReadConfigFile(incVersion) != REC_ERR_OKAY) {
+          mgmt_elog(stderr, errno, "[fileUpdated] Config update failed for records.config\n");
+        }
+        handled_by_mgmt = true;
+      }
+    }
+
+    if (!handled_by_mgmt) {
+      if (processRunning() == false) {
+        // Fix INKqa04984
+        // If traffic server hasn't completely come up yet,
+        // we will hold off until next round.
+        ink_assert(enqueue(mgmt_event_queue, mh));
+        return;
+      }
+      Debug("lm", "[TrafficManager] ==> Sending signal event '%d' payload=%d\n", mh->msg_id, mh->data_len);
+      lmgmt->sendMgmtMsgToProcesses(mh);
+    }
+    ats_free(mh);
+  }
+}
+
+
+/*
+ * startProxy()
+ *   Function fires up a proxy process.
+ */
+bool
+LocalManager::startProxy()
+{
+  if (proxy_launch_outstanding) {
+    return false;
+  }
+  mgmt_log(stderr, "[LocalManager::startProxy] Launching ts process\n");
+
+  pid_t pid;
+
+  // Before we do anything lets check for the existence of
+  // the traffic server binary along with it's execute permmissions
+  if (access(absolute_proxy_binary, F_OK) < 0) {
+    // Error can't find traffic_server
+    mgmt_elog(stderr, errno, "[LocalManager::startProxy] Unable to find traffic server at %s\n", absolute_proxy_binary);
+    return false;
+  }
+  // traffic server binary exists, check permissions
+  else if (access(absolute_proxy_binary, R_OK | X_OK) < 0) {
+    // Error don't have proper permissions
+    mgmt_elog(stderr, errno, "[LocalManager::startProxy] Unable to access %s due to bad permisssions \n",
+              absolute_proxy_binary);
+    return false;
+  }
+
+  if (env_prep) {
+#ifdef POSIX_THREAD
+    if ((pid = fork()) < 0)
+#else
+    if ((pid = fork1()) < 0)
+#endif
+    {
+      mgmt_elog(stderr, errno, "[LocalManager::startProxy] Unable to fork1 prep process\n");
+      return false;
+    } else if (pid > 0) {
+      int estatus;
+      waitpid(pid, &estatus, 0);
+    } else {
+      int res;
+
+      char env_prep_bin[MAXPATHLEN];
+      xptr<char> bindir(RecConfigReadBinDir());
+
+      ink_filepath_make(env_prep_bin, sizeof(env_prep_bin), bindir, env_prep);
+      res = execl(env_prep_bin, env_prep_bin, (char*)NULL);
+      _exit(res);
+    }
+  }
+#ifdef POSIX_THREAD
+  if ((pid = fork()) < 0)
+#else
+  if ((pid = fork1()) < 0)
+#endif
+  {
+    mgmt_elog(stderr, errno, "[LocalManager::startProxy] Unable to fork1 process\n");
+    return false;
+  } else if (pid > 0) {         /* Parent */
+    proxy_launch_pid = pid;
+    proxy_launch_outstanding = true;
+    proxy_started_at = time(NULL);
+    ++proxy_launch_count;
+    RecSetRecordInt("proxy.node.restarts.proxy.start_time", proxy_started_at);
+    RecSetRecordInt("proxy.node.restarts.proxy.restart_count", proxy_launch_count);
+  } else {
+    int res, i = 0;
+    char *options[32], *last, *tok;
+    bool open_ports_p = false;
+
+    Vec<char> real_proxy_options;
+
+    real_proxy_options.append(proxy_options, strlen(proxy_options));
+
+    // Check if we need to pass down port/fd information to
+    // traffic_server by seeing if there are any open ports.
+    for ( int i = 0, limit = m_proxy_ports.length() ; !open_ports_p && i < limit ; ++i) {
+      if (ts::NO_FD != m_proxy_ports[i].m_fd) {
+        open_ports_p = true;
+      }
+    }
+
+    if (open_ports_p) {
+      char portbuf[128];
+      bool need_comma_p = false;
+      real_proxy_options.append(" --httpport ", strlen(" --httpport "));
+      for ( int i = 0, limit = m_proxy_ports.length() ; i < limit ; ++i ) {
+        HttpProxyPort& p = m_proxy_ports[i];
+        if (ts::NO_FD != p.m_fd) {
+          if (need_comma_p) {
+            real_proxy_options.append(',');
+          }
+          need_comma_p = true;
+          p.print(portbuf, sizeof(portbuf));
+          real_proxy_options.append((const char *)portbuf, strlen(portbuf));
+        }
+      }
+    }
+
+    // NUL-terminate for the benefit of strtok and printf.
+    real_proxy_options.add(0);
+
+    Debug("lm", "[LocalManager::startProxy] Launching %s with options '%s'\n",
+          absolute_proxy_binary, &real_proxy_options[0]);
+
+    ink_zero(options);
+    options[0] = absolute_proxy_binary;
+    i = 1;
+    tok = strtok_r(&real_proxy_options[0], " ", &last);
+    options[i++] = tok;
+    while (i < 32 && (tok = strtok_r(NULL, " ", &last))) {
+      Debug("lm", "opt %d = '%s'\n", i, tok);
+      options[i++] = tok;
+    }
+
+    if (!strstr(proxy_options, "-M")) { // Make sure we're starting the proxy in mgmt mode
+      mgmt_fatal(stderr, 0, "[LocalManager::startProxy] ts options must contain -M");
+    }
+
+    res = execv(absolute_proxy_binary, options);
+    mgmt_elog(stderr, errno, "[LocalManager::startProxy] Exec of %s failed\n", absolute_proxy_binary);
+    _exit(res);
+  }
+  return true;
+}
+
+/** Close all open ports.
+ */
+void
+LocalManager::closeProxyPorts() {
+  for ( int i = 0, n = lmgmt->m_proxy_ports.length() ; i < n ; ++i ) {
+    HttpProxyPort& p = lmgmt->m_proxy_ports[i];
+    if (ts::NO_FD != p.m_fd) {
+      close_socket(p.m_fd);
+      p.m_fd = ts::NO_FD;
+    }
+  }
+}
+/*
+ * listenForProxy()
+ *  Function listens on the accept port of the proxy, so users aren't dropped.
+ */
+void
+LocalManager::listenForProxy()
+{
+  if (!run_proxy)
+    return;
+
+  // We are not already bound, bind the port
+  for ( int i = 0, n = lmgmt->m_proxy_ports.length() ; i < n ; ++i ) {
+    HttpProxyPort& p = lmgmt->m_proxy_ports[i];
+    if (ts::NO_FD == p.m_fd) {
+      this->bindProxyPort(p);
+    }
+
+    // read backlong configuration value and overwrite the default value if found
+    int backlog = 1024;
+    bool found;
+    RecInt config_backlog = REC_readInteger("proxy.config.net.listen_backlog", &found);
+    if (found) {
+      backlog = config_backlog;
+    }
+
+    if ((listen(p.m_fd, backlog)) < 0) {
+      mgmt_fatal(stderr, errno, "[LocalManager::listenForProxy] Unable to listen on socket: %d\n", p.m_port);
+    }
+    mgmt_log(stderr, "[LocalManager::listenForProxy] Listening on port: %d\n", p.m_port);
+  }
+  return;
+}
+
+
+/*
+ * bindProxyPort()
+ *  Function binds the accept port of the proxy
+ */
+void
+LocalManager::bindProxyPort(HttpProxyPort& port)
+{
+  int one = 1;
+
+#if !TS_USE_POSIX_CAP
+  bool privBoost = false;
+  uid_t euid = geteuid();
+  uid_t saved_euid = 0;
+
+  if (port.m_port < 1024 && euid != 0) {
+    if (restoreRootPriv(&saved_euid) == false) {
+      mgmt_elog(stderr, 0, "[bindProxyPort] Unable to get root priviledges to bind port %d. euid is %d.  Exiting\n",
+                port.m_port, euid);
+      _exit(0);
+    } else {
+      privBoost = true;
+    }
+  }
+#endif
+
+  /* Setup reliable connection, for large config changes */
+  if ((port.m_fd = socket(port.m_family, SOCK_STREAM, 0)) < 0) {
+    mgmt_elog(stderr, 0, "[bindProxyPort] Unable to create socket : %s\n", strerror(errno));
+    _exit(1);
+  }
+
+  if (port.m_type == HttpProxyPort::TRANSPORT_DEFAULT) {
+    int should_filter_int = 0;
+    bool found;
+    should_filter_int = REC_readInteger("proxy.config.net.defer_accept", &found);
+    if (found && should_filter_int > 0) {
+#if defined(SOL_FILTER) && defined(FIL_ATTACH)
+      (void)setsockopt(port.m_fd, SOL_FILTER, FIL_ATTACH, "httpfilt", 9);
+#endif
+    }
+  }
+
+  if (port.m_family == AF_INET6) {
+    if (setsockopt(port.m_fd, IPPROTO_IPV6, IPV6_V6ONLY, SOCKOPT_ON, sizeof(int)) < 0) {
+      mgmt_elog(stderr, 0, "[bindProxyPort] Unable to set socket options: %d : %s\n", port.m_port, strerror(errno));
+    }
+  }
+  if (setsockopt(port.m_fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(int)) < 0) {
+    mgmt_elog(stderr, 0, "[bindProxyPort] Unable to set socket options: %d : %s\n", port.m_port, strerror(errno));
+    _exit(1);
+  }
+
+  if (port.m_inbound_transparent_p) {
+#if TS_USE_TPROXY
+    Debug("http_tproxy", "Listen port %d inbound transparency enabled.\n", port.m_port);
+    if (setsockopt(port.m_fd, SOL_IP, TS_IP_TRANSPARENT, &one, sizeof(one)) == -1) {
+      mgmt_elog(stderr, 0, "[bindProxyPort] Unable to set transparent socket option [%d] %s\n", errno, strerror(errno));
+      _exit(1);
+    }
+#else
+    Debug("lm", "[bindProxyPort] Transparency requested but TPROXY not configured\n");
+#endif
+  }
+
+  IpEndpoint ip;
+  if (port.m_inbound_ip.isValid()) {
+    ip.assign(port.m_inbound_ip);
+  } else if (AF_INET6 == port.m_family) {
+    if (m_inbound_ip6.isValid()) ip.assign(m_inbound_ip6);
+    else ip.setToAnyAddr(AF_INET6);
+  } else if (AF_INET == port.m_family) {
+    if (m_inbound_ip4.isValid()) ip.assign(m_inbound_ip4);
+    else ip.setToAnyAddr(AF_INET);
+  } else {
+    mgmt_elog(stderr, 0, "[bindProxyPort] Proxy port with invalid address type %d\n", port.m_family);
+    _exit(1);
+  }
+  ip.port() = htons(port.m_port);
+  if (bind(port.m_fd, &ip.sa, ats_ip_size(&ip)) < 0) {
+    mgmt_elog(stderr, 0, "[bindProxyPort] Unable to bind socket: %d : %s\n", port.m_port, strerror(errno));
+    _exit(1);
+  }
+
+  Debug("lm", "[bindProxyPort] Successfully bound proxy port %d\n", port.m_port);
+
+#if !TS_USE_POSIX_CAP
+  if (port.m_port < 1024 && euid != 0) {
+    if (privBoost == true) {
+      if (removeRootPriv(saved_euid) == false) {
+        mgmt_elog(stderr, 0, "[bindProxyPort] Unable to reset permissions to euid %d.  Exiting...\n", getuid());
+        _exit(1);
+      }
+    }
+  }
+#endif
+}
+
+void
+LocalManager::signalAlarm(int alarm_id, const char *desc, const char *ip)
+{
+  if (alarm_keeper)
+    alarm_keeper->signalAlarm((alarm_t) alarm_id, desc, ip);
+}
diff --git a/mgmt/LocalManager.h b/mgmt/LocalManager.h
new file mode 100644
index 00000000..08a01040
--- /dev/null
+++ b/mgmt/LocalManager.h
@@ -0,0 +1,158 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *
+ * LocalManager.h
+ *   Definitions for the LocalManager class.
+ *
+ * $Date: 2007-10-05 16:56:44 $
+ *
+ *
+ */
+
+#ifndef _LOCAL_MANAGER_H
+#define _LOCAL_MANAGER_H
+
+#include "Main.h"
+#include "Alarms.h"
+#include "BaseManager.h"
+#include "ClusterCom.h"
+#include "VMap.h"
+#include <records/I_RecHttp.h>
+#if TS_HAS_WCCP
+#include <wccp/Wccp.h>
+#endif
+
+#define ink_get_hrtime ink_get_hrtime_internal
+#define ink_get_based_hrtime ink_get_based_hrtime_internal
+
+class LocalManager: public BaseManager
+{
+public:
+  LocalManager(bool proxy_on);
+
+  ~LocalManager()
+  {
+    delete alarm_keeper;
+    delete virt_map;
+    delete ccom;
+    ats_free(absolute_proxy_binary);
+    ats_free(proxy_name);
+    ats_free(proxy_binary);
+    ats_free(proxy_options);
+    ats_free(env_prep);
+  };
+
+  void initAlarm();
+  void initCCom(int mcport, char *addr, int rsport);
+  void initMgmtProcessServer();
+  void pollMgmtProcessServer();
+  void handleMgmtMsgFromProcesses(MgmtMessageHdr * mh);
+  void sendMgmtMsgToProcesses(int msg_id, const char *data_str);
+  void sendMgmtMsgToProcesses(int msg_id, const char *data_raw, int data_len);
+  void sendMgmtMsgToProcesses(MgmtMessageHdr * mh);
+
+  void signalFileChange(const char *var_name, bool incVersion = true);
+  void signalEvent(int msg_id, const char *data_str);
+  void signalEvent(int msg_id, const char *data_raw, int data_len);
+  void signalAlarm(int alarm_id, const char *desc = NULL, const char *ip = NULL);
+
+  void processEventQueue();
+  bool startProxy();
+  void listenForProxy();
+  void bindProxyPort(HttpProxyPort&);
+  void closeProxyPorts();
+
+  void mgmtCleanup();
+  void mgmtShutdown(bool mainThread = false);
+  void processShutdown(bool mainThread = false);
+  void processRestart();
+  void processBounce();
+  void rollLogFiles();
+  void clearStats(const char *name = NULL);
+
+  bool processRunning();
+  bool clusterOk();
+  bool SetForDup(void *hIOCPort, long lTProcId, void *hTh);
+
+  void tick()
+  {
+    ++internal_ticker;
+  };
+  void resetTicker()
+  {
+    internal_ticker = 0;
+  }
+
+  void syslogThrInit();
+
+  volatile bool run_proxy;
+  volatile time_t manager_started_at;
+  volatile time_t proxy_started_at;
+  volatile int proxy_launch_count;
+  volatile bool proxy_launch_outstanding;
+  volatile bool mgmt_shutdown_outstanding;
+  volatile int proxy_running;
+  HttpProxyPort::Group m_proxy_ports;
+  // Local inbound addresses to bind, if set.
+  IpAddr m_inbound_ip4;
+  IpAddr m_inbound_ip6;
+
+  int process_server_timeout_secs;
+  int process_server_timeout_msecs;
+
+  char *absolute_proxy_binary;
+  char *proxy_name;
+  char *proxy_binary;
+  char *proxy_options;
+  char *env_prep;
+
+  int process_server_sockfd;
+  volatile int watched_process_fd;
+  volatile pid_t proxy_launch_pid;
+
+  int mgmt_sync_key;
+
+  Alarms *alarm_keeper;
+  VMap *virt_map;
+
+  ClusterCom *ccom;
+
+  volatile int internal_ticker;
+  volatile pid_t watched_process_pid;
+
+#ifdef MGMT_USE_SYSLOG
+  int syslog_facility;
+#endif
+
+#if TS_HAS_WCCP
+  wccp::Cache wccp_cache;
+# endif
+private:
+};                              /* End class LocalManager */
+
+extern LocalManager *lmgmt;
+
+
+#endif /* _LOCAL_MANAGER_H */
diff --git a/mgmt/Main.cc b/mgmt/Main.cc
new file mode 100644
index 00000000..b0c352f3
--- /dev/null
+++ b/mgmt/Main.cc
@@ -0,0 +1,1239 @@
+/** @file
+
+  Entry point to the traffic manager.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "ink_platform.h"
+#include "ink_sys_control.h"
+
+#include "Main.h"
+#include "MgmtUtils.h"
+#include "WebMgmtUtils.h"
+#include "WebIntrMain.h"
+#include "WebOverview.h"
+#include "FileManager.h"
+#include "I_Layout.h"
+#include "I_Version.h"
+#include "ink_syslog.h"
+#include "ink_lockfile.h"
+#include "Diags.h"
+#include "DiagsConfig.h"
+#include "URL.h"
+#include "MIME.h"
+#include "HTTP.h"
+
+// Needs LibRecordsConfigInit()
+#include "RecordsConfig.h"
+
+#if defined(MGMT_API)
+#include "TSControlMain.h"
+#endif
+
+
+#include "StatProcessor.h"
+#include "P_RecLocal.h"
+#include "P_RecCore.h"
+
+#if TS_USE_POSIX_CAP
+#include <sys/capability.h>
+#endif
+#include <grp.h>
+
+#define FD_THROTTLE_HEADROOM (128 + 64) // TODO: consolidate with THROTTLE_FD_HEADROOM
+#define DIAGS_LOG_FILENAME "manager.log"
+
+#if defined(freebsd)
+extern "C" int getpwnam_r(const char *name, struct passwd *result, char *buffer, size_t buflen, struct passwd **resptr);
+#endif
+
+static void extractConfigInfo(char *mgmt_path, const char *recs_conf, char *userName, int *fds_throttle);
+
+LocalManager *lmgmt = NULL;
+FileManager *configFiles;
+
+StatProcessor *statProcessor;   // Statistics Processors
+AppVersionInfo appVersionInfo;  // Build info for this application
+
+int diags_init = 0;
+
+static inkcoreapi DiagsConfig *diagsConfig;
+static char debug_tags[1024] = "";
+static char action_tags[1024] = "";
+static bool proxy_on = true;
+
+char mgmt_path[PATH_NAME_MAX + 1];
+
+// By default, set the current directory as base
+static const char *recs_conf = "records.config";
+
+static int fds_limit;
+
+// TODO: Use positive instead negative selection
+//       Thsis should just be #if defined(solaris)
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+static void SignalHandler(int sig, siginfo_t * t, void *f);
+static void SignalAlrmHandler(int sig, siginfo_t * t, void *f);
+#else
+static void SignalHandler(int sig);
+static void SignalAlrmHandler(int sig);
+#endif
+
+static volatile int sigHupNotifier = 0;
+static volatile int sigUsr2Notifier = 0;
+static void SigChldHandler(int sig);
+
+static void
+check_lockfile()
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  char lockfile[PATH_NAME_MAX];
+  int err;
+  pid_t holding_pid;
+
+  //////////////////////////////////////
+  // test for presence of server lock //
+  //////////////////////////////////////
+  Layout::relative_to(lockfile, sizeof(lockfile), rundir, SERVER_LOCK);
+  Lockfile server_lockfile(lockfile);
+  err = server_lockfile.Open(&holding_pid);
+  if (err == 1) {
+    server_lockfile.Close();    // no server running
+  } else {
+    char *reason = strerror(-err);
+    if (err == 0) {
+      // TODO: Add PID_FMT_T instead duplicating code just for printing
+#if defined(solaris)
+      fprintf(stderr, "FATAL: Lockfile '%s' says server already running as PID %d\n", lockfile, (int)holding_pid);
+#else
+      fprintf(stderr, "FATAL: Lockfile '%s' says server already running as PID %d\n", lockfile, holding_pid);
+#endif
+      mgmt_elog(stderr, 0, "FATAL: Lockfile '%s' says server already running as PID %d\n", lockfile, holding_pid);
+    } else {
+      fprintf(stderr, "FATAL: Can't open server lockfile '%s' (%s)\n", lockfile, (reason ? reason : "Unknown Reason"));
+      mgmt_elog(stderr, 0, "FATAL: Can't open server lockfile '%s' (%s)\n",
+                lockfile, (reason ? reason : "Unknown Reason"));
+    }
+    exit(1);
+  }
+
+  ///////////////////////////////////////////
+  // try to get the exclusive manager lock //
+  ///////////////////////////////////////////
+  Layout::relative_to(lockfile, sizeof(lockfile), rundir, MANAGER_LOCK);
+  Lockfile manager_lockfile(lockfile);
+  err = manager_lockfile.Get(&holding_pid);
+  if (err != 1) {
+    char *reason = strerror(-err);
+    fprintf(stderr, "FATAL: Can't acquire manager lockfile '%s'", lockfile);
+    mgmt_elog(stderr, 0, "FATAL: Can't acquire manager lockfile '%s'", lockfile);
+    if (err == 0) {
+#if defined(solaris)
+      fprintf(stderr, " (Lock file held by process ID %d)\n", (int)holding_pid);
+#else
+      fprintf(stderr, " (Lock file held by process ID %d)\n", holding_pid);
+#endif
+      mgmt_elog(stderr, 0, " (Lock file held by process ID %d)\n", holding_pid);
+    } else if (reason) {
+      fprintf(stderr, " (%s)\n", reason);
+      mgmt_elog(stderr, 0, " (%s)\n", reason);
+    } else {
+      fprintf(stderr, "\n");
+    }
+    exit(1);
+
+    fprintf(stderr, "unable to acquire manager lock [%d]\n", -err);
+    exit(1);
+  }
+}
+
+
+static void
+initSignalHandlers()
+{
+  struct sigaction sigHandler, sigChldHandler, sigAlrmHandler;
+  sigset_t sigsToBlock;
+
+  // Set up the signal handler
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  sigHandler.sa_handler = NULL;
+  sigHandler.sa_sigaction = SignalHandler;
+#else
+  sigHandler.sa_handler = SignalHandler;
+#endif
+  sigemptyset(&sigHandler.sa_mask);
+
+  // We want the handler to remain in place on
+  //  SIGHUP to avoid any races with the signals
+  //  coming too quickly.  Also restart systems calls
+  //  after the signal since not all calls are wrapped
+  //  to check errno for EINTR
+  sigHandler.sa_flags = SA_RESTART;
+  sigaction(SIGHUP, &sigHandler, NULL);
+  sigaction(SIGUSR2, &sigHandler, NULL);
+
+  // Don't block the signal on entry to the signal
+  //   handler so we can reissue it and get a core
+  //   file in the appropriate circumstances
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  sigHandler.sa_flags = SA_RESETHAND | SA_SIGINFO;
+#else
+  sigHandler.sa_flags = SA_RESETHAND;
+#endif
+  sigaction(SIGINT, &sigHandler, NULL);
+  sigaction(SIGQUIT, &sigHandler, NULL);
+  sigaction(SIGILL, &sigHandler, NULL);
+  sigaction(SIGBUS, &sigHandler, NULL);
+  sigaction(SIGSEGV, &sigHandler, NULL);
+  sigaction(SIGTERM, &sigHandler, NULL);
+
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  sigAlrmHandler.sa_handler = NULL;
+  sigAlrmHandler.sa_sigaction = SignalAlrmHandler;
+#else
+  sigAlrmHandler.sa_handler = SignalAlrmHandler;
+#endif
+
+  sigemptyset(&sigAlrmHandler.sa_mask);
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  sigAlrmHandler.sa_flags = SA_SIGINFO;
+#else
+  sigAlrmHandler.sa_flags = 0;
+#endif
+  sigaction(SIGALRM, &sigAlrmHandler, NULL);
+
+  // Block the delivery of any signals we are not catching
+  //
+  //  except for SIGALARM since we use it
+  //    to break out of deadlock on semaphore
+  //    we share with the proxy
+  //
+  sigfillset(&sigsToBlock);
+  sigdelset(&sigsToBlock, SIGHUP);
+  sigdelset(&sigsToBlock, SIGUSR2);
+  sigdelset(&sigsToBlock, SIGINT);
+  sigdelset(&sigsToBlock, SIGQUIT);
+  sigdelset(&sigsToBlock, SIGILL);
+  sigdelset(&sigsToBlock, SIGABRT);
+  sigdelset(&sigsToBlock, SIGBUS);
+  sigdelset(&sigsToBlock, SIGSEGV);
+  sigdelset(&sigsToBlock, SIGTERM);
+  sigdelset(&sigsToBlock, SIGALRM);
+  ink_thread_sigsetmask(SIG_SETMASK, &sigsToBlock, NULL);
+
+  // Set up the SIGCHLD handler so we do not get into
+  //   a problem with Solaris 2.6 and strange waitpid()
+  //   behavior
+  sigChldHandler.sa_handler = SigChldHandler;
+  sigChldHandler.sa_flags = SA_RESTART;
+  sigemptyset(&sigChldHandler.sa_mask);
+  sigaction(SIGCHLD, &sigChldHandler, NULL);
+}
+
+#if defined(linux)
+#include <sys/prctl.h>
+#endif
+static int
+setup_coredump()
+{
+#if defined(linux)
+#ifndef PR_SET_DUMPABLE
+#define PR_SET_DUMPABLE 4       /* Ugly, but we cannot compile with 2.2.x otherwise.
+                                   Should be removed when we compile only on 2.4.x */
+#endif
+  prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
+#endif  // linux check
+  return 0;
+}
+
+static void
+init_dirs()
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+
+  if (access(Layout::get()->sysconfdir, R_OK) == -1) {
+    mgmt_elog(0, "unable to access() config dir '%s': %d, %s\n", Layout::get()->sysconfdir, errno, strerror(errno));
+    mgmt_elog(0, "please set the 'TS_ROOT' environment variable\n");
+    _exit(1);
+  }
+
+  if (access(rundir, R_OK) == -1) {
+    mgmt_elog(0, "unable to access() local state dir '%s': %d, %s\n", (const char *)rundir, errno, strerror(errno));
+    mgmt_elog(0, "please set 'proxy.config.local_state_dir'\n");
+    _exit(1);
+  }
+}
+
+static void
+chdir_root()
+{
+  const char * prefix = Layout::get()->prefix;
+
+  if (chdir(prefix) < 0) {
+    mgmt_elog(0, "unable to change to root directory \"%s\" [%d '%s']\n", prefix, errno, strerror(errno));
+    mgmt_elog(0, " please set correct path in env variable TS_ROOT \n");
+    exit(1);
+  } else {
+    mgmt_log("[TrafficManager] using root directory '%s'\n", prefix);
+  }
+}
+
+
+static void
+set_process_limits(int fds_throttle)
+{
+  struct rlimit lim;
+
+  // Set needed rlimits (root)
+  ink_max_out_rlimit(RLIMIT_NOFILE, true, false);
+  ink_max_out_rlimit(RLIMIT_STACK, true, true);
+  ink_max_out_rlimit(RLIMIT_DATA, true, true);
+  ink_max_out_rlimit(RLIMIT_FSIZE, true, false);
+#ifdef RLIMIT_RSS
+  ink_max_out_rlimit(RLIMIT_RSS, true, true);
+#endif
+
+#if defined(linux)
+  float file_max_pct = 0.9;
+  FILE *fd;
+
+  if ((fd = fopen("/proc/sys/fs/file-max","r"))) {
+    ATS_UNUSED_RETURN(fscanf(fd, "%lu", &lim.rlim_max));
+    fclose(fd);
+    REC_ReadConfigFloat(file_max_pct, "proxy.config.system.file_max_pct");
+    lim.rlim_cur = lim.rlim_max = static_cast<rlim_t>(lim.rlim_max * file_max_pct);
+    if (!setrlimit(RLIMIT_NOFILE, &lim) && !getrlimit(RLIMIT_NOFILE, &lim)) {
+      fds_limit = (int) lim.rlim_cur;
+#ifdef MGMT_USE_SYSLOG
+      syslog(LOG_NOTICE, "NOTE: RLIMIT_NOFILE(%d):cur(%d),max(%d)",RLIMIT_NOFILE, (int)lim.rlim_cur, (int)lim.rlim_max);
+    } else {
+      syslog(LOG_NOTICE, "NOTE: Unable to set RLIMIT_NOFILE(%d):cur(%d),max(%d)", RLIMIT_NOFILE, (int)lim.rlim_cur, (int)lim.rlim_max);
+#endif
+    }
+#ifdef MGMT_USE_SYSLOG
+  } else {
+    syslog(LOG_NOTICE, "NOTE: Unable to open /proc/sys/fs/file-max");
+#endif
+  }
+#endif // linux
+
+  if (!getrlimit(RLIMIT_NOFILE, &lim)) {
+    if (fds_throttle > (int) (lim.rlim_cur + FD_THROTTLE_HEADROOM)) {
+      lim.rlim_cur = (lim.rlim_max = (rlim_t) fds_throttle);
+      if (!setrlimit(RLIMIT_NOFILE, &lim) && !getrlimit(RLIMIT_NOFILE, &lim)) {
+        fds_limit = (int) lim.rlim_cur;
+#ifdef MGMT_USE_SYSLOG
+	syslog(LOG_NOTICE, "NOTE: RLIMIT_NOFILE(%d):cur(%d),max(%d)",RLIMIT_NOFILE, (int)lim.rlim_cur, (int)lim.rlim_max);
+#endif
+      }
+    }
+  }
+
+}
+
+#if TS_HAS_WCCP
+static void
+Errata_Logger(ts::Errata const& err) {
+  size_t n;
+  static size_t const SIZE = 4096;
+  char buff[SIZE];
+  if (err.size()) {
+    ts::Errata::Code code = err.top().getCode();
+    n = err.write(buff, SIZE, 1, 0, 2, "> ");
+    // strip trailing newlines.
+    while (n && (buff[n-1] == '\n' || buff[n-1] == '\r'))
+      buff[--n] = 0;
+    // log it.
+    if (code > 1) mgmt_elog(0, "[WCCP]%s", buff);
+    else if (code > 0) mgmt_log("[WCCP]%s", buff);
+    else Debug("WCCP", "%s", buff);
+  }
+}
+
+static void
+Init_Errata_Logging() {
+  ts::Errata::registerSink(&Errata_Logger);
+}
+#endif
+
+int
+main(int argc, char **argv)
+{
+  // Before accessing file system initialize Layout engine
+  Layout::create();
+  ink_strlcpy(mgmt_path, Layout::get()->sysconfdir, sizeof(mgmt_path));
+
+  // change the directory to the "root" directory
+  chdir_root();
+
+  // Line buffer standard output & standard error
+  int status;
+  status = setvbuf(stdout, NULL, _IOLBF, 0);
+  if (status != 0)
+    perror("WARNING: can't line buffer stdout");
+  status = setvbuf(stderr, NULL, _IOLBF, 0);
+  if (status != 0)
+    perror("WARNING: can't line buffer stderr");
+
+  bool found = false;
+  int just_started = 0;
+  int cluster_mcport = -1, cluster_rsport = -1;
+  // TODO: This seems completely incomplete, disabled for now
+  //  int dump_config = 0, dump_process = 0, dump_node = 0, dump_cluster = 0, dump_local = 0;
+  char* proxy_port = 0;
+  int proxy_backdoor = -1;
+  char *envVar = NULL, *group_addr = NULL, *tsArgs = NULL;
+  bool log_to_syslog = true;
+  char userToRunAs[80];
+  int  fds_throttle = -1;
+  time_t ticker;
+  ink_thread webThrId;
+
+
+  // Set up the application version info
+  appVersionInfo.setup(PACKAGE_NAME,"traffic_manager", PACKAGE_VERSION,
+                       __DATE__, __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+  initSignalHandlers();
+
+  // Process Environment Variables
+  if ((envVar = getenv("MGMT_ACONF_PORT")) != NULL) {
+    aconf_port_arg = atoi(envVar);
+  }
+
+  if ((envVar = getenv("MGMT_CLUSTER_MC_PORT")) != NULL) {
+    cluster_mcport = atoi(envVar);
+  }
+
+  if ((envVar = getenv("MGMT_CLUSTER_RS_PORT")) != NULL) {
+    cluster_rsport = atoi(envVar);
+  }
+
+  if ((envVar = getenv("MGMT_GROUP_ADDR")) != NULL) {
+    group_addr = envVar;
+  }
+
+  for (int i = 1; i < argc; i++) {      /* Process command line args */
+
+    if (argv[i][0] == '-') {
+      if ((strcmp(argv[i], "-version") == 0) || (strcmp(argv[i], "-V") == 0)) {
+        fprintf(stderr, "%s\n", appVersionInfo.FullVersionInfoStr);
+        exit(0);
+      } else if (strcmp(argv[i], "-proxyOff") == 0) {
+        proxy_on = false;
+      } else if (strcmp(argv[i], "-nosyslog") == 0) {
+        log_to_syslog = false;
+      } else {
+        // The rest of the options require an argument in the form of -<Flag> <val>
+        if ((i + 1) < argc) {
+
+          if (strcmp(argv[i], "-aconfPort") == 0) {
+            ++i;
+            aconf_port_arg = atoi(argv[i]);
+          } else if (strcmp(argv[i], "-clusterMCPort") == 0) {
+            ++i;
+            cluster_mcport = atoi(argv[i]);
+          } else if (strcmp(argv[i], "-groupAddr") == 0) {
+            ++i;
+            group_addr = argv[i];
+          } else if (strcmp(argv[i], "-clusterRSPort") == 0) {
+            ++i;
+            cluster_rsport = atoi(argv[i]);
+#if TS_USE_DIAGS
+          } else if (strcmp(argv[i], "-debug") == 0) {
+            ++i;
+            ink_strlcpy(debug_tags, argv[i], sizeof(debug_tags));
+          } else if (strcmp(argv[i], "-action") == 0) {
+            ++i;
+            ink_strlcpy(action_tags, argv[i], sizeof(debug_tags));
+#endif
+          } else if (strcmp(argv[i], "-path") == 0) {
+            ++i;
+            //bugfixed by YTS Team, yamsat(id-59703)
+            if ((strlen(argv[i]) > PATH_NAME_MAX)) {
+              fprintf(stderr, "\n   Path exceeded the maximum allowed characters.\n");
+              exit(1);
+            }
+
+            ink_strlcpy(mgmt_path, argv[i], sizeof(mgmt_path));
+            /*
+               } else if(strcmp(argv[i], "-lmConf") == 0) {
+               ++i;
+               lm_conf = argv[i];
+             */
+          } else if (strcmp(argv[i], "-recordsConf") == 0) {
+            ++i;
+            recs_conf = argv[i];
+            // TODO: This seems completely incomplete, disabled for now
+#if 0
+          } else if (strcmp(argv[i], "-printRecords") == 0) {
+            ++i;
+            while (i < argc && argv[i][0] != '-') {
+              if (strcasecmp(argv[i], "config") == 0) {
+                dump_config = 1;
+              } else if (strcasecmp(argv[i], "process") == 0) {
+                dump_process = 1;
+              } else if (strcasecmp(argv[i], "node") == 0) {
+                dump_node = 1;
+              } else if (strcasecmp(argv[i], "cluster") == 0) {
+                dump_cluster = 1;
+              } else if (strcasecmp(argv[i], "local") == 0) {
+                dump_local = 1;
+              } else if (strcasecmp(argv[i], "all") == 0) {
+                dump_config = dump_node = dump_process = dump_cluster = dump_local = 1;
+              }
+              ++i;
+            }
+            --i;
+#endif
+          } else if (strcmp(argv[i], "-tsArgs") == 0) {
+            int size_of_args = 0, j = (++i);
+            while (j < argc) {
+              size_of_args += 1;
+              size_of_args += strlen((argv[j++]));
+            }
+            tsArgs = (char *)ats_malloc(size_of_args + 1);
+
+            j = 0;
+            while (i < argc) {
+              snprintf(&tsArgs[j], ((size_of_args + 1) - j), " %s", argv[i]);
+              j += strlen(argv[i]) + 1;
+              ++i;
+            }
+          } else if (strcmp(argv[i], "-proxyPort") == 0) {
+            ++i;
+            proxy_port = argv[i];
+          } else if (strcmp(argv[i], "-proxyBackDoor") == 0) {
+            ++i;
+            proxy_backdoor = atoi(argv[i]);
+          } else {
+            printUsage();
+          }
+        } else {
+          printUsage();
+        }
+      }
+    }
+  }
+
+
+#ifdef MGMT_USE_SYSLOG
+  // Bootstrap with LOG_DAEMON until we've read our configuration
+  if (log_to_syslog) {
+    openlog("traffic_manager", LOG_PID | LOG_NDELAY | LOG_NOWAIT, LOG_DAEMON);
+    mgmt_use_syslog();
+    syslog(LOG_NOTICE, "NOTE: --- Manager Starting ---");
+    syslog(LOG_NOTICE, "NOTE: Manager Version: %s", appVersionInfo.FullVersionInfoStr);
+  }
+#endif /* MGMT_USE_SYSLOG */
+
+  // Bootstrap the Diags facility so that we can use it while starting
+  //  up the manager
+  diagsConfig = new DiagsConfig(DIAGS_LOG_FILENAME, debug_tags, action_tags, false);
+  diags = diagsConfig->diags;
+  diags->prefix_str = "Manager ";
+
+  RecLocalInit();
+  LibRecordsConfigInit();
+  RecordsConfigOverrideFromEnvironment();
+
+  init_dirs();// setup critical directories, needs LibRecords
+
+  // Get the config info we need while we are still root
+  extractConfigInfo(mgmt_path, recs_conf, userToRunAs, &fds_throttle);
+
+  set_process_limits(fds_throttle); // as root
+  runAsUser(userToRunAs);
+  setup_coredump();
+  check_lockfile();
+
+  url_init();
+  mime_init();
+  http_init();
+
+#if defined(MGMT_API)
+  // initialize alarm queue
+  int ret;
+
+  ret = init_mgmt_alarm_q(mgmt_alarm_event_q);
+  if (ret < 0)
+    mgmt_alarm_event_q = NULL;
+
+#endif
+
+#if TS_HAS_WCCP
+  Init_Errata_Logging();
+#endif
+  ts_host_res_global_init();
+  ts_session_protocol_well_known_name_indices_init();
+  lmgmt = new LocalManager(proxy_on);
+  RecLocalInitMessage();
+  lmgmt->initAlarm();
+
+  if (diags) {
+    delete diagsConfig;
+    // diagsConfig->reconfigure_diags(); INKqa11968
+    /*
+       delete diags;
+       diags = new Diags(debug_tags,action_tags);
+     */
+  }
+  // INKqa11968: need to set up callbacks and diags data structures
+  // using configuration in records.config
+  diagsConfig = new DiagsConfig(DIAGS_LOG_FILENAME, debug_tags, action_tags, true);
+  diags = diagsConfig->diags;
+  RecSetDiags(diags);
+  diags->prefix_str = "Manager ";
+
+  if (is_debug_tag_set("diags"))
+    diags->dump();
+  diags->cleanup_func = mgmt_cleanup;
+  diags_init = 1;
+
+  // Setup the exported manager version records.
+  RecSetRecordString("proxy.node.version.manager.short", appVersionInfo.VersionStr);
+  RecSetRecordString("proxy.node.version.manager.long", appVersionInfo.FullVersionInfoStr);
+  RecSetRecordString("proxy.node.version.manager.build_number", appVersionInfo.BldNumStr);
+  RecSetRecordString("proxy.node.version.manager.build_time", appVersionInfo.BldTimeStr);
+  RecSetRecordString("proxy.node.version.manager.build_date", appVersionInfo.BldDateStr);
+  RecSetRecordString("proxy.node.version.manager.build_machine", appVersionInfo.BldMachineStr);
+  RecSetRecordString("proxy.node.version.manager.build_person", appVersionInfo.BldPersonStr);
+//    RecSetRecordString("proxy.node.version.manager.build_compile_flags",
+//                       appVersionInfo.BldCompileFlagsStr);
+
+#ifdef MGMT_USE_SYSLOG
+  if (log_to_syslog) {
+    char sys_var[] = "proxy.config.syslog_facility";
+    char *facility_str = NULL;
+    int facility_int;
+    facility_str = REC_readString(sys_var, &found);
+    ink_assert(found);
+
+    if (!found) {
+      mgmt_elog(0, "Could not read %s.  Defaulting to DAEMON\n", sys_var);
+      facility_int = LOG_DAEMON;
+    } else {
+      facility_int = facility_string_to_int(facility_str);
+      ats_free(facility_str);
+      if (facility_int < 0) {
+        mgmt_elog(0, "Bad syslog facility specified.  Defaulting to DAEMON\n");
+        facility_int = LOG_DAEMON;
+      }
+    }
+
+    // NOTE: do NOT call closelog() here.  Solaris gets confused
+    //   and some how it hoses later calls to readdir_r.
+    openlog("traffic_manager", LOG_PID | LOG_NDELAY | LOG_NOWAIT, facility_int);
+
+    lmgmt->syslog_facility = facility_int;
+  } else {
+    lmgmt->syslog_facility = -1;
+  }
+#endif /* MGMT_USE_SYSLOG */
+
+  // Find out our hostname so we can use it as part of the initialization
+  setHostnameVar();
+
+  // Create the data structure for overview page
+  //   Do this before the rest of the set up since it needs
+  //   to created to handle any alarms thrown by later
+  //   initialization
+  overviewGenerator = new overviewPage();
+
+  // Initialize the Config Object bindings before
+  //   starting any other threads
+  configFiles = new FileManager();
+  initializeRegistry();
+  configFiles->registerCallback(fileUpdated);
+
+  // RecLocal's 'sync_thr' depends on 'configFiles', so we can't
+  // stat the 'sync_thr' until 'configFiles' has been initialized.
+  RecLocalStart();
+
+  /* Update cmd line overrides/environmental overrides/etc */
+  if (tsArgs) {                 /* Passed command line args for proxy */
+    ats_free(lmgmt->proxy_options);
+    lmgmt->proxy_options = tsArgs;
+    mgmt_log(stderr, "[main] Traffic Server Args: '%s'\n", lmgmt->proxy_options);
+  }
+  if (proxy_port) {
+    HttpProxyPort::loadValue(lmgmt->m_proxy_ports, proxy_port);
+  }
+
+  if (proxy_backdoor != -1) {
+    RecSetRecordInt("proxy.config.process_manager.mgmt_port", proxy_backdoor);
+  }
+
+  if (cluster_rsport == -1) {
+    cluster_rsport = REC_readInteger("proxy.config.cluster.rsport", &found);
+    ink_assert(found);
+  }
+
+  if (cluster_mcport == -1) {
+    cluster_mcport = REC_readInteger("proxy.config.cluster.mcport", &found);
+    ink_assert(found);
+  }
+
+  if (!group_addr) {
+    group_addr = REC_readString("proxy.config.cluster.mc_group_addr", &found);
+    ink_assert(found);
+  }
+
+  in_addr_t min_ip = inet_network("224.0.0.255");
+  in_addr_t max_ip = inet_network("239.255.255.255");
+  in_addr_t group_addr_ip = inet_network(group_addr);
+
+  if (!(min_ip < group_addr_ip && group_addr_ip < max_ip)) {
+    mgmt_fatal(0, "[TrafficManager] Multi-Cast group addr '%s' is not in the permitted range of %s\n",
+               group_addr, "224.0.1.0 - 239.255.255.255");
+  }
+
+  /* TODO: Do we really need to init cluster communication? */
+  lmgmt->initCCom(cluster_mcport, group_addr, cluster_rsport);       /* Setup cluster communication */
+
+  lmgmt->initMgmtProcessServer();       /* Setup p-to-p process server */
+
+
+  // Now that we know our cluster ip address, add the
+  //   UI record for this machine
+  overviewGenerator->addSelfRecord();
+
+  lmgmt->listenForProxy();
+
+  //
+  // As listenForProxy() may change/restore euid, we should put
+  // the creation of webIntr_main thread after it. So that we
+  // can keep a consistent euid when create mgmtapi/eventapi unix
+  // sockets in webIntr_main thread.
+  //
+  webThrId = ink_thread_create(webIntr_main, NULL);     /* Spin web agent thread */
+  Debug("lm", "Created Web Agent thread (%"  PRId64 ")", (int64_t)webThrId);
+
+  ticker = time(NULL);
+  mgmt_log("[TrafficManager] Setup complete\n");
+
+  statProcessor = new StatProcessor();
+
+  for (;;) {
+    lmgmt->processEventQueue();
+    lmgmt->pollMgmtProcessServer();
+
+    // Check for a SIGHUP
+    if (sigHupNotifier != 0) {
+      mgmt_log(stderr, "[main] Reading Configuration Files due to SIGHUP\n");
+      configFiles->rereadConfig();
+      lmgmt->signalEvent(MGMT_EVENT_PLUGIN_CONFIG_UPDATE, "*");
+      sigHupNotifier = 0;
+      mgmt_log(stderr, "[main] Reading Configuration Files Reread\n");
+    }
+    // Check for SIGUSR2
+    if (sigUsr2Notifier != 0) {
+      ink_stack_trace_dump();
+      sigUsr2Notifier = 0;
+    }
+
+    lmgmt->ccom->generateClusterDelta();
+
+    if (lmgmt->run_proxy && lmgmt->processRunning()) {
+      lmgmt->ccom->sendSharedData();
+      lmgmt->virt_map->lt_runGambit();
+    } else {
+      if (!lmgmt->run_proxy) {  /* Down if we are not going to start another immed. */
+        /* Proxy is not up, so no addrs should be */
+        lmgmt->virt_map->downOurAddrs();
+      }
+
+      /* Proxy is not up, but we should still exchange config and alarm info */
+      lmgmt->ccom->sendSharedData(false);
+    }
+
+    lmgmt->ccom->checkPeers(&ticker);
+    overviewGenerator->checkForUpdates();
+
+    if (statProcessor) {
+      statProcessor->processStat();
+    }
+
+    if (lmgmt->mgmt_shutdown_outstanding == true) {
+      lmgmt->mgmtShutdown(true);
+      _exit(0);
+    }
+
+    if (lmgmt->run_proxy && !lmgmt->processRunning()) { /* Make sure we still have a proxy up */
+      if (lmgmt->startProxy())
+        just_started = 0;
+      else
+        just_started++;
+    } else {                    /* Give the proxy a chance to fire up */
+      just_started++;
+    }
+
+    /* This will catch the case were the proxy dies before it can connect to manager */
+    if (lmgmt->proxy_launch_outstanding && !lmgmt->processRunning() && just_started >= 120) {
+      just_started = 0;
+      lmgmt->proxy_launch_outstanding = false;
+      if (lmgmt->proxy_launch_pid != -1) {
+        int res;
+        kill(lmgmt->proxy_launch_pid, 9);
+        waitpid(lmgmt->proxy_launch_pid, &res, 0);
+        if (WIFSIGNALED(res)) {
+          int sig = WTERMSIG(res);
+#ifdef NEED_PSIGNAL
+          mgmt_log(stderr, "[main] Proxy terminated due to Sig %d\n", sig);
+#else
+          mgmt_log(stderr, "[main] Proxy terminated due to Sig %d: %s\n", sig, strsignal(sig));
+#endif /* NEED_PSIGNAL */
+        }
+      }
+      mgmt_log(stderr, "[main] Proxy launch failed, retrying...\n");
+    }
+
+  }
+
+  if (statProcessor) {
+    delete(statProcessor);
+  }
+
+#ifndef MGMT_SERVICE
+  return 0;
+#endif
+
+}                               /* End main */
+
+
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+static void
+SignalAlrmHandler(int /* sig ATS_UNUSED */, siginfo_t * t, void * /* c ATS_UNUSED */)
+#else
+static void
+SignalAlrmHandler(int /* sig ATS_UNUSED */)
+#endif
+{
+  /*
+     fprintf(stderr, "[TrafficManager] ==> SIGALRM received\n");
+     mgmt_elog(stderr, 0, "[TrafficManager] ==> SIGALRM received\n");
+   */
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  if (t) {
+    if (t->si_code <= 0) {
+#if defined(solaris)
+      fprintf(stderr, "[TrafficManager] ==> User Alarm from pid: %d uid: %d\n", (int)t->si_pid, t->si_uid);
+#else
+      fprintf(stderr, "[TrafficManager] ==> User Alarm from pid: %d uid: %d\n", t->si_pid, t->si_uid);
+#endif
+      mgmt_elog(stderr, 0, "[TrafficManager] ==> User Alarm from pid: %d uid: %d\n", t->si_pid, t->si_uid);
+    } else {
+      fprintf(stderr, "[TrafficManager] ==> Kernel Alarm Reason: %d\n", t->si_code);
+      mgmt_elog(stderr, 0, "[TrafficManager] ==> Kernel Alarm Reason: %d\n", t->si_code);
+    }
+  }
+#endif
+
+  return;
+}
+
+
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+static void
+SignalHandler(int sig, siginfo_t * t, void *c)
+#else
+static void
+SignalHandler(int sig)
+#endif
+{
+  static int clean = 0;
+  int status;
+
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  if (t) {
+    if (t->si_code <= 0) {
+#if defined(solaris)
+      fprintf(stderr, "[TrafficManager] ==> User Sig %d from pid: %d uid: %d\n", sig, (int)t->si_pid, t->si_uid);
+#else
+      fprintf(stderr, "[TrafficManager] ==> User Sig %d from pid: %d uid: %d\n", sig, t->si_pid, t->si_uid);
+#endif
+      mgmt_elog(stderr, 0, "[TrafficManager] ==> User Sig %d from pid: %d uid: %d\n", sig, t->si_pid, t->si_uid);
+    } else {
+      fprintf(stderr, "[TrafficManager] ==> Kernel Sig %d; Reason: %d\n", sig, t->si_code);
+      mgmt_elog(stderr, 0, "[TrafficManager] ==> Kernel Sig %d; Reason: %d\n", sig, t->si_code);
+    }
+  }
+#endif
+
+
+  if (sig == SIGHUP) {
+    sigHupNotifier = 1;
+    return;
+  }
+
+  if (sig == SIGUSR2) {
+    sigUsr2Notifier = 1;
+    return;
+  }
+  fprintf(stderr, "[TrafficManager] ==> Cleaning up and reissuing signal #%d\n", sig);
+  mgmt_elog(stderr, 0, "[TrafficManager] ==> Cleaning up and reissuing signal #%d\n", sig);
+
+  if (lmgmt && !clean) {
+    clean = 1;
+    if (lmgmt->watched_process_pid != -1) {
+
+      if (sig == SIGTERM || sig == SIGINT) {
+        kill(lmgmt->watched_process_pid, sig);
+        waitpid(lmgmt->watched_process_pid, &status, 0);
+      }
+    }
+    lmgmt->mgmtCleanup();
+  }
+
+  switch (sig) {
+  case SIGQUIT:
+  case SIGILL:
+  case SIGTRAP:
+#if !defined(linux)
+  case SIGEMT:
+  case SIGSYS:
+#endif
+  case SIGFPE:
+  case SIGBUS:
+  case SIGSEGV:
+  case SIGXCPU:
+  case SIGXFSZ:
+    abort();
+  default:
+    fprintf(stderr, "[TrafficManager] ==> signal #%d\n", sig);
+    mgmt_elog(stderr, 0, "[TrafficManager] ==> signal #%d\n", sig);
+    _exit(sig);
+  }
+  fprintf(stderr, "[TrafficManager] ==> signal2 #%d\n", sig);
+  mgmt_elog(stderr, 0, "[TrafficManager] ==> signal2 #%d\n", sig);
+  _exit(sig);
+}                               /* End SignalHandler */
+
+
+// void SigChldHandler(int sig)
+//
+//   An empty handler needed so that we catch SIGCHLD
+//    With Solaris 2.6, ignoring sig child changes the behavior
+//    of waitpid() so that if there are no unwaited children,
+//    waitpid() blocks until all child are transformed into
+//    zombies which is bad for us
+//
+static void
+SigChldHandler(int /* sig ATS_UNUSED */)
+{
+}
+
+void
+printUsage()
+{
+  fprintf(stderr, "----------------------------------------------------------------------------\n");
+  fprintf(stderr, " Traffic Manager Usage: (all args are optional)\n");
+  fprintf(stderr, "\n");
+  fprintf(stderr, "   traffic_manager [options]\n");
+  fprintf(stderr, "     -proxyPort     <port>  Port to have proxy listen on, overrides records.config.\n");
+  /* Function is currently #ifdef'ed out so no reason to advertise
+     fprintf(stderr,
+     "     -proxyBackdoor <port>  Port to put proxy mgmt port on.\n");
+   */
+  /* Commented out because this option is used for debugging only.
+     fprintf(stderr,
+     "     -noProxy               Do not launch the proxy process.\n");
+   */
+  fprintf(stderr, "     -tsArgs        [...]   Args to proxy, everything till eol is passed.\n");
+  fprintf(stderr, "     -webPort       <port>  Port for web interface.\n");
+  /*
+     fprintf(stderr,
+     "     -graphPort     <port>  Port for dynamic graphs.\n");
+   */
+  fprintf(stderr, "     -clusterPort   <port>  Cluster Multicast port\n");
+  fprintf(stderr, "     -groupAddr     <addr>  Cluster Multicast group, example: \"225.0.0.37\".\n");
+  fprintf(stderr, "     -clusterRSPort <port>  Cluster Multicast port.\n");
+  fprintf(stderr, "     -path          <path>  Root path for config files.\n");
+  /*
+     fprintf(stderr,
+     "     -lmConf        <fname> Local Management config file.\n");
+   */
+  fprintf(stderr, "     -recordsConf   <fname> General config file.\n");
+  // TODO: This seems completely incomplete, disabled for now
+  // fprintf(stderr, "     -printRecords  [...]   Print flags, default all are off.\n");
+  fprintf(stderr, "     -debug         <tags>  Enable the given debug tags\n");
+  fprintf(stderr, "     -action        <tags>  Enable the given action tags.\n");
+  fprintf(stderr, "     -version or -V         Print version id and exit.\n");
+  fprintf(stderr, "\n");
+  fprintf(stderr, "   [...] can be one+ of: [config process node cluster local all]\n");
+  fprintf(stderr, "----------------------------------------------------------------------------\n");
+  exit(0);
+}                               /* End printUsage */
+
+void
+fileUpdated(char *fname, bool incVersion)
+{
+  if (strcmp(fname, "cluster.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.cluster.cluster_configuration");
+
+  } else if (strcmp(fname, "remap.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.url_remap.filename");
+
+  } else if (strcmp(fname, "socks.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.socks.socks_config_file");
+
+  } else if (strcmp(fname, "records.config") == 0) {
+    lmgmt->signalFileChange("records.config", incVersion);
+
+  } else if (strcmp(fname, "cache.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.cache.control.filename");
+
+  } else if (strcmp(fname, "parent.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.http.parent_proxy.file");
+
+  } else if (strcmp(fname, "ip_allow.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.cache.ip_allow.filename");
+  } else if (strcmp(fname, "vaddrs.config") == 0) {
+    mgmt_log(stderr, "[fileUpdated] vaddrs.config updated\n");
+    lmgmt->virt_map->lt_readAListFile(fname);
+
+  } else if (strcmp(fname, "storage.config") == 0) {
+    mgmt_log(stderr, "[fileUpdated] storage.config changed, need restart auto-rebuild mode\n");
+
+  } else if (strcmp(fname, "proxy.pac") == 0) {
+    mgmt_log(stderr, "[fileUpdated] proxy.pac file has been modified\n");
+
+  } else if (strcmp(fname, "icp.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.icp.icp_configuration");
+
+  } else if (strcmp(fname, "update.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.update.update_configuration");
+
+  } else if (strcmp(fname, "volume.config") == 0) {
+    mgmt_log(stderr, "[fileUpdated] volume.config changed, need restart\n");
+
+  } else if (strcmp(fname, "hosting.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.cache.hosting_filename");
+
+  } else if (strcmp(fname, "log_hosts.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.log.hosts_config_file");
+
+  } else if (strcmp(fname, "logs_xml.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.log.xml_config_file");
+
+  } else if (strcmp(fname, "splitdns.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.dns.splitdns.filename");
+
+  } else if (strcmp(fname, "plugin.config") == 0) {
+    mgmt_log(stderr, "[fileUpdated] plugin.config file has been modified\n");
+
+  } else if (strcmp(fname, "ssl_multicert.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.ssl.server.multicert.filename");
+
+  } else if (strcmp(fname, "proxy.config.body_factory.template_sets_dir") == 0) {
+    lmgmt->signalFileChange("proxy.config.body_factory.template_sets_dir");
+
+  } else if (strcmp(fname, "stats.config.xml") == 0) {
+    if (statProcessor) {
+      statProcessor->rereadConfig();
+    }
+    mgmt_log(stderr, "[fileUpdated] stats.config.xml file has been modified\n");
+  } else if (strcmp(fname, "congestion.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.http.congestion_control.filename");
+  } else if (strcmp(fname, "prefetch.config") == 0) {
+    lmgmt->signalFileChange("proxy.config.prefetch.config_file");
+  } else {
+    mgmt_elog(stderr, 0, "[fileUpdated] Unknown config file updated '%s'\n", fname);
+
+  }
+  return;
+}                               /* End fileUpdate */
+
+#if TS_USE_POSIX_CAP
+/** Restore capabilities after user id change.
+    This manipulates LINUX capabilities so that this process
+    can perform certain privileged operations even if it is
+    no longer running as a privilege user.
+
+    @internal
+    I tried using
+    @code
+    prctl(PR_SET_KEEPCAPS, 1);
+    @endcode
+    but that had no effect even though the call reported success.
+    Only explicit capability manipulation was effective.
+
+    It does not appear to be necessary to set the capabilities on the
+    executable if originally run as root. That may be needed if
+    started as a user without that capability.
+ */
+
+int
+restoreCapabilities() {
+  int zret = 0; // return value.
+  cap_t cap_set = cap_get_proc(); // current capabilities
+  // Make a list of the capabilities we want turned on.
+  cap_value_t cap_list[] = {
+    CAP_NET_ADMIN, ///< Set socket transparency.
+    CAP_NET_BIND_SERVICE, ///< Low port (e.g. 80) binding.
+    CAP_IPC_LOCK ///< Lock IPC objects.
+  };
+  static int const CAP_COUNT = sizeof(cap_list)/sizeof(*cap_list);
+
+  cap_set_flag(cap_set, CAP_EFFECTIVE, CAP_COUNT, cap_list, CAP_SET);
+  zret = cap_set_proc(cap_set);
+  cap_free(cap_set);
+  return zret;
+}
+#endif
+
+//  void runAsUser(...)
+//
+//  If we are root, switched to user to run as
+//    specified in records.config
+//
+//  If we are not root, do nothing
+//
+void
+runAsUser(char *userName)
+{
+  uid_t uid, euid;
+  struct passwd *result;
+  const int bufSize = 1024;
+  char buf[bufSize];
+
+  uid = getuid();
+  euid = geteuid();
+
+  if (uid == 0 || euid == 0) {
+
+    /* Figure out what user we should run as */
+
+    Debug("lm", "[runAsUser] Attempting to run as user '%s'\n", userName);
+
+
+    if (userName == NULL || userName[0] == '\0') {
+      mgmt_elog(stderr, 0, "[runAsUser] Fatal Error: proxy.config.admin.user_id is not set\n");
+      _exit(1);
+    }
+
+    struct passwd passwdInfo;
+    struct passwd *ppasswd = NULL;
+    result = NULL;
+    int res;
+    if (*userName == '#') {
+      int uuid = atoi(userName + 1);
+      if (uuid == -1)
+        uuid = (int)uid;
+      res = getpwuid_r((uid_t)uuid, &passwdInfo, buf, bufSize, &ppasswd);
+    }
+    else {
+      res = getpwnam_r(&userName[0], &passwdInfo, buf, bufSize, &ppasswd);
+    }
+
+    if (!res && ppasswd) {
+      result = ppasswd;
+    }
+
+    if (result == NULL) {
+      mgmt_elog(stderr, 0, "[runAsUser] Fatal Error: Unable to get info about user %s : %s\n", userName, strerror(errno));
+      _exit(1);
+    }
+
+    if (setegid(result->pw_gid) != 0 || seteuid(result->pw_uid) != 0) {
+      mgmt_elog(stderr, 0, "[runAsUser] Fatal Error: Unable to switch to user %s : %s\n", userName, strerror(errno));
+      _exit(1);
+    }
+
+    uid = getuid();
+    euid = geteuid();
+
+
+    Debug("lm", "[runAsUser] Running with uid: '%d' euid: '%d'\n", uid, euid);
+
+    if (uid != result->pw_uid && euid != result->pw_uid) {
+      mgmt_elog(stderr, 0, "[runAsUser] Fatal Error: Failed to switch to user %s\n", userName);
+      _exit(1);
+    }
+
+    // setup supplementary groups if it is not set.
+    if (0 == getgroups(0, NULL)) {
+      initgroups(&userName[0],result->pw_gid);
+    }
+
+#if TS_USE_POSIX_CAP
+    if (0 != restoreCapabilities()) {
+      mgmt_elog(stderr, 0, "[runAsUser] Error: Failed to restore capabilities after switch to user %s.\n", userName);
+    }
+#endif
+
+  }
+}                               /* End runAsUser() */
+
+
+//  void extractConfigInfo(...)
+//
+//  We need to get certain records.config values while we are
+//   root.  We can not use LMRecords to get them because the constructor
+//   for LMRecords creates the mgmt DBM and we do not want that to
+//   be owned as root.  This function extracts that info from
+//   records.config
+//
+//
+void
+extractConfigInfo(char *mgmt_path, const char *recs_conf, char *userName, int *fds_throttle)
+{
+  char file[1024];
+  bool useridFound = false;
+  bool throttleFound = false;
+
+  /* Figure out what user we should run as */
+  if (mgmt_path && recs_conf) {
+    FILE *fin;
+    snprintf(file, sizeof(file), "%s/%s.shadow", mgmt_path, recs_conf);
+    if (!(fin = fopen(file, "r"))) {
+      ink_filepath_make(file, sizeof(file), mgmt_path, recs_conf);
+      if (!(fin = fopen(file, "r"))) {
+        mgmt_elog(stderr, errno, "[extractConfigInfo] Unable to open config file(%s)\n", file);
+        _exit(1);
+      }
+    }
+    // Get 'user id' and 'network connections throttle limit'
+    while (((!useridFound) || (!throttleFound)) && fgets(file, 1024, fin)) {
+      if (strstr(file, "CONFIG proxy.config.admin.user_id STRING")) {
+        //coverity[secure_coding]
+        if ((sscanf(file, "CONFIG proxy.config.admin.user_id STRING %1023s\n", userName) == 1) &&
+            strcmp(userName, "NULL") != 0) {
+          useridFound = true;
+        }
+      } else if (strstr(file, "CONFIG proxy.config.net.connections_throttle INT")) {
+        if ((sscanf(file, "CONFIG proxy.config.net.connections_throttle INT %d\n", fds_throttle) == 1)) {
+          throttleFound = true;
+        }
+      }
+
+    }
+    fclose(fin);
+  } else {
+    mgmt_elog(stderr, 0, "[extractConfigInfo] Fatal Error: unable to access records file\n");
+    _exit(1);
+  }
+
+  if (useridFound == false) {
+    mgmt_elog(stderr, 0, "[extractConfigInfo] Fatal Error: proxy.config.admin.user_id is not set\n");
+    _exit(1);
+  }
+
+}                               /* End extractConfigInfo() */
diff --git a/mgmt/Main.h b/mgmt/Main.h
new file mode 100644
index 00000000..ec372267
--- /dev/null
+++ b/mgmt/Main.h
@@ -0,0 +1,53 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _MAIN_H_
+#define _MAIN_H_
+
+#include "FileManager.h"
+#include "I_Version.h"
+
+// TODO: consolidate location of these defaults
+#define DEFAULT_ROOT_DIRECTORY            PREFIX
+#define DEFAULT_LOCAL_STATE_DIRECTORY     "var/trafficserver"
+#define DEFAULT_SYSTEM_CONFIG_DIRECTORY   "etc/trafficserver"
+#define DEFAULT_LOG_DIRECTORY             "var/log/trafficserver"
+
+void MgmtShutdown(int status);
+void fileUpdated(char *fname, bool incVersion);
+void runAsUser(char *userName);
+void printUsage(void);
+
+extern FileManager *configFiles;
+//extern overviewPage *overviewGenerator;
+extern AppVersionInfo appVersionInfo;
+
+// Global strings
+extern char mgmt_path[];
+
+// Global variable to replace ifdef MGMT_LAUNCH_PROXY so that
+// we can turn on/off proxy launch at runtime to facilitate
+// manager only testing.
+extern bool mgmt_launch_proxy;
+
+#endif /* _MAIN_H_ */
diff --git a/mgmt/Makefile.am b/mgmt/Makefile.am
new file mode 100644
index 00000000..a2622f9c
--- /dev/null
+++ b/mgmt/Makefile.am
@@ -0,0 +1,117 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = cluster utils web2 stats api
+
+# This is for traffic_manager only (local manager)
+AM_CPPFLAGS = $(ink_with_modules_local) \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/stats \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+MGMT_DEFS = @MGMT_DEFS@
+DEFS += $(MGMT_DEFS)
+
+noinst_LIBRARIES = libmgmt_p.a
+
+bin_PROGRAMS = traffic_manager
+
+# Compile this for "process manager"
+libmgmt_p_a_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+libmgmt_p_a_SOURCES = \
+  BaseManager.cc \
+  BaseManager.h \
+  MgmtDefs.h \
+  ProcessManager.cc \
+  ProcessManager.h \
+  ProxyConfig.cc \
+  ProxyConfig.h \
+  RecordsConfig.cc \
+  RecordsConfig.h
+
+traffic_manager_SOURCES = \
+  AddConfigFilesHere.cc \
+  Alarms.cc \
+  Alarms.h \
+  BaseManager.cc \
+  BaseManager.h \
+  FileManager.cc \
+  FileManager.h \
+  LocalManager.cc \
+  LocalManager.h \
+  Main.cc \
+  Main.h \
+  MgmtDefs.h \
+  MultiFile.cc \
+  MultiFile.h \
+  RecordsConfig.cc \
+  RecordsConfig.h \
+  Rollback.cc \
+  Rollback.h
+
+traffic_manager_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @EXPAT_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_manager_LDADD = \
+  cluster/libcluster.a \
+  stats/libstats.a \
+  web2/libweb.a \
+  api/libmgmtapilocal.a \
+  api/libtsmgmtshare.la \
+  utils/libutils_lm.a \
+  $(top_builddir)/proxy/hdrs/libhdrs.a \
+  $(top_builddir)/lib/records/libreclocal.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/proxy/shared/liberror.a \
+  $(top_builddir)/proxy/shared/libdiagsconfig.a \
+  @LIBRESOLV@ @LIBEXPAT@ @LIBPCRE@ @LIBTCL@ @LIBCAP@ @HWLOC_LIBS@ \
+  -lm
+
+# Must do it this way or the dependencies aren't detected.
+if BUILD_WCCP
+traffic_manager_LDADD += \
+  $(top_builddir)/lib/wccp/libwccp.a \
+  $(top_builddir)/lib/tsconfig/libtsconfig.la
+endif
+
+traffic_manager_LDADD += @OPENSSL_LIBS@
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diff --git a/mgmt/Makefile.in b/mgmt/Makefile.in
new file mode 100644
index 00000000..f15192fa
--- /dev/null
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+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+SUBDIRS = cluster utils web2 stats api
+
+# This is for traffic_manager only (local manager)
+AM_CPPFLAGS = $(ink_with_modules_local) \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/stats \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+noinst_LIBRARIES = libmgmt_p.a
+
+# Compile this for "process manager"
+libmgmt_p_a_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+libmgmt_p_a_SOURCES = \
+  BaseManager.cc \
+  BaseManager.h \
+  MgmtDefs.h \
+  ProcessManager.cc \
+  ProcessManager.h \
+  ProxyConfig.cc \
+  ProxyConfig.h \
+  RecordsConfig.cc \
+  RecordsConfig.h
+
+traffic_manager_SOURCES = \
+  AddConfigFilesHere.cc \
+  Alarms.cc \
+  Alarms.h \
+  BaseManager.cc \
+  BaseManager.h \
+  FileManager.cc \
+  FileManager.h \
+  LocalManager.cc \
+  LocalManager.h \
+  Main.cc \
+  Main.h \
+  MgmtDefs.h \
+  MultiFile.cc \
+  MultiFile.h \
+  RecordsConfig.cc \
+  RecordsConfig.h \
+  Rollback.cc \
+  Rollback.h
+
+traffic_manager_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @EXPAT_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_manager_LDADD = cluster/libcluster.a stats/libstats.a \
+	web2/libweb.a api/libmgmtapilocal.a api/libtsmgmtshare.la \
+	utils/libutils_lm.a $(top_builddir)/proxy/hdrs/libhdrs.a \
+	$(top_builddir)/lib/records/libreclocal.a \
+	$(top_builddir)/lib/ts/libtsutil.la \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/proxy/shared/liberror.a \
+	$(top_builddir)/proxy/shared/libdiagsconfig.a @LIBRESOLV@ \
+	@LIBEXPAT@ @LIBPCRE@ @LIBTCL@ @LIBCAP@ @HWLOC_LIBS@ -lm \
+	$(am__append_1) @OPENSSL_LIBS@
+all: all-recursive
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign mgmt/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign mgmt/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libmgmt_p.a: $(libmgmt_p_a_OBJECTS) $(libmgmt_p_a_DEPENDENCIES) $(EXTRA_libmgmt_p_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libmgmt_p.a
+	$(AM_V_AR)$(libmgmt_p_a_AR) libmgmt_p.a $(libmgmt_p_a_OBJECTS) $(libmgmt_p_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libmgmt_p.a
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
+	for p in $$list; do echo "$$p $$p"; done | \
+	sed 's/$(EXEEXT)$$//' | \
+	while read p p1; do if test -f $$p \
+	 || test -f $$p1 \
+	  ; then echo "$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n;h' \
+	    -e 's|.*|.|' \
+	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
+	sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) files[d] = files[d] " " $$1; \
+	    else { print "f", $$3 "/" $$4, $$1; } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	    if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	    test -z "$$files" || { \
+	    echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(bindir)$$dir'"; \
+	    $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
+	    } \
+	; done
+
+uninstall-binPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
+	test -n "$$list" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(bindir)" && rm -f $$files
+
+clean-binPROGRAMS:
+	@list='$(bin_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+traffic_manager$(EXEEXT): $(traffic_manager_OBJECTS) $(traffic_manager_DEPENDENCIES) $(EXTRA_traffic_manager_DEPENDENCIES) 
+	@rm -f traffic_manager$(EXEEXT)
+	$(AM_V_CXXLD)$(traffic_manager_LINK) $(traffic_manager_OBJECTS) $(traffic_manager_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/AddConfigFilesHere.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Alarms.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/BaseManager.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/FileManager.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LocalManager.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Main.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/MultiFile.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/RecordsConfig.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Rollback.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libmgmt_p_a-BaseManager.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libmgmt_p_a-ProcessManager.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libmgmt_p_a-ProxyConfig.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libmgmt_p_a-RecordsConfig.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+libmgmt_p_a-BaseManager.o: BaseManager.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libmgmt_p_a-BaseManager.o -MD -MP -MF $(DEPDIR)/libmgmt_p_a-BaseManager.Tpo -c -o libmgmt_p_a-BaseManager.o `test -f 'BaseManager.cc' || echo '$(srcdir)/'`BaseManager.cc
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libmgmt_p_a-BaseManager.Tpo $(DEPDIR)/libmgmt_p_a-BaseManager.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='BaseManager.cc' object='libmgmt_p_a-BaseManager.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o libmgmt_p_a-BaseManager.o `test -f 'BaseManager.cc' || echo '$(srcdir)/'`BaseManager.cc
+
+libmgmt_p_a-BaseManager.obj: BaseManager.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libmgmt_p_a-BaseManager.obj -MD -MP -MF $(DEPDIR)/libmgmt_p_a-BaseManager.Tpo -c -o libmgmt_p_a-BaseManager.obj `if test -f 'BaseManager.cc'; then $(CYGPATH_W) 'BaseManager.cc'; else $(CYGPATH_W) '$(srcdir)/BaseManager.cc'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libmgmt_p_a-BaseManager.Tpo $(DEPDIR)/libmgmt_p_a-BaseManager.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='BaseManager.cc' object='libmgmt_p_a-BaseManager.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o libmgmt_p_a-BaseManager.obj `if test -f 'BaseManager.cc'; then $(CYGPATH_W) 'BaseManager.cc'; else $(CYGPATH_W) '$(srcdir)/BaseManager.cc'; fi`
+
+libmgmt_p_a-ProcessManager.o: ProcessManager.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libmgmt_p_a-ProcessManager.o -MD -MP -MF $(DEPDIR)/libmgmt_p_a-ProcessManager.Tpo -c -o libmgmt_p_a-ProcessManager.o `test -f 'ProcessManager.cc' || echo '$(srcdir)/'`ProcessManager.cc
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libmgmt_p_a-ProcessManager.Tpo $(DEPDIR)/libmgmt_p_a-ProcessManager.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='ProcessManager.cc' object='libmgmt_p_a-ProcessManager.o' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -c -o libmgmt_p_a-ProcessManager.o `test -f 'ProcessManager.cc' || echo '$(srcdir)/'`ProcessManager.cc
+
+libmgmt_p_a-ProcessManager.obj: ProcessManager.cc
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libmgmt_p_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libmgmt_p_a-ProcessManager.obj -MD -MP -MF $(DEPDIR)/libmgmt_p_a-ProcessManager.Tpo -c -o libmgmt_p_a-ProcessManager.obj `if test -f 'ProcessManager.cc'; then $(CYGPATH_W) 'ProcessManager.cc'; else $(CYGPATH_W) '$(srcdir)/ProcessManager.cc'; fi`
+@am__fastdepCXX_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libmgmt_p_a-ProcessManager.Tpo $(DEPDIR)/libmgmt_p_a-ProcessManager.Po
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run 'make' without going through this Makefile.
+# To change the values of 'make' variables: instead of editing Makefiles,
+# (1) if the variable is set in 'config.status', edit 'config.status'
+#     (which will cause the Makefiles to be regenerated when you run 'make');
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+	case "$@" in \
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+	  *) list='$(SUBDIRS)' ;; \
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+
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+	  sed -e "s|^$$srcdirstrip/||;t" \
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+	  fi; \
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diff --git a/mgmt/MgmtDefs.h b/mgmt/MgmtDefs.h
new file mode 100644
index 00000000..ff8650db
--- /dev/null
+++ b/mgmt/MgmtDefs.h
@@ -0,0 +1,88 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *
+ * MgmtDef.h
+ *   Some mgmt definitions for relatively general use.
+ *
+ * $Date: 2006-03-08 19:40:20 $
+ *
+ *
+ */
+
+#ifndef _MGMT_DEF_H
+#define _MGMT_DEF_H
+
+/*
+ * Type definitions.
+ */
+#include "ink_defs.h"
+#include "ink_hrtime.h"
+
+typedef int64_t MgmtIntCounter;
+typedef int64_t MgmtInt;
+typedef int8_t MgmtByte;
+typedef float MgmtFloat;
+typedef char *MgmtString;
+
+typedef enum
+{
+  MGMT_INVALID = -1,
+  MGMT_INT = 0,
+  MGMT_FLOAT = 1,
+  MGMT_STRING = 2,
+  MGMT_COUNTER = 3,
+  MGMT_TYPE_MAX = 4
+} MgmtType;
+
+/*
+ * MgmtCallback
+ *   Management Callback functions.
+ */
+typedef void *(*MgmtCallback) (void *opaque_cb_data, char *data_raw, int data_len);
+
+#define MGMT_SEMID_DEFAULT            11452
+#define MGMT_DB_FILENAME              "mgmt_db"
+#define LM_CONNECTION_SERVER          "process_server"
+
+/* Structs used in Average Statistics calculations */
+struct StatTwoIntSamples
+{
+  const char *lm_record_name;
+  ink_hrtime previous_time;
+  ink_hrtime current_time;
+  MgmtInt previous_value;
+  MgmtInt current_value;
+
+  MgmtInt diff_value()
+  {
+    return (current_value - previous_value);
+  }
+  ink_hrtime diff_time()
+  {
+    return (current_time - previous_time);
+  }
+};
+
+#endif /* _MGMT_DEF_H */
diff --git a/mgmt/MultiFile.cc b/mgmt/MultiFile.cc
new file mode 100644
index 00000000..07d60603
--- /dev/null
+++ b/mgmt/MultiFile.cc
@@ -0,0 +1,247 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_assert.h"
+#include "ink_error.h"
+#include "ink_file.h"
+#include "ink_string.h"
+#include "ink_time.h"
+
+#include "Compatability.h"
+#include "MgmtUtils.h"
+#include "MultiFile.h"
+#include "ExpandingArray.h"
+#include "TextBuffer.h"
+#include "WebMgmtUtils.h"
+
+/****************************************************************************
+ *
+ *  MultiFile.cc - base class to handle reading and displaying config
+ *                 files and directories
+ *
+ *
+ ****************************************************************************/
+
+MultiFile::MultiFile()
+{
+  managedDir = NULL;
+  dirDescript = NULL;
+}
+
+// void MultiFile::addTableEntries(ExpandingArray* fileList, textBuffer* output)
+//
+//   Adds table entries to output from the result of WalkFiles
+//
+void
+MultiFile::addTableEntries(ExpandingArray * fileList, textBuffer * output)
+{
+  int numFiles = fileList->getNumEntries();
+  fileEntry *current;
+  char *safeName;
+  char dateBuf[64];
+  const char dataOpen[] = "\t<td>";
+  const char dataClose[] = "</td>\n";
+  const int dataOpenLen = strlen(dataOpen);
+  const int dataCloseLen = strlen(dataClose);
+
+  for (int i = 0; i < numFiles; i++) {
+    current = (fileEntry *) ((*fileList)[i]);
+
+    output->copyFrom("<tr>\n", 5);
+    output->copyFrom(dataOpen, dataOpenLen);
+    safeName = substituteForHTMLChars(current->name);
+    output->copyFrom(safeName, strlen(safeName));
+    delete[]safeName;
+    output->copyFrom(dataClose, dataCloseLen);
+    output->copyFrom(dataOpen, dataOpenLen);
+
+    if (ink_ctime_r(&current->c_time, dateBuf) == NULL) {
+      ink_strlcpy(dateBuf, "<em>No time-stamp</em>", sizeof(dateBuf));
+    }
+    output->copyFrom(dateBuf, strlen(dateBuf));
+    output->copyFrom(dataClose, dataCloseLen);
+    output->copyFrom("</tr>\n", 6);
+  }
+
+}
+
+// Mfresult MultiFile::WalkFiles(ExpandingArray* fileList)
+//
+//   Iterates through the managed directory and adds every managed file
+//     into the parameter snapList
+//
+
+MFresult
+MultiFile::WalkFiles(ExpandingArray * fileList)
+{
+  struct dirent *dirEntry;
+  DIR *dir;
+  char *fileName;
+  char *filePath;
+  char *records_config_filePath = NULL;
+  struct stat fileInfo;
+  struct stat records_config_fileInfo;
+  fileEntry *fileListEntry;
+
+  if ((dir = opendir(managedDir)) == NULL) {
+    mgmt_log(stderr, "[MultiFile::WalkFiles] Unable to open %s directory: %s: %s\n",
+             dirDescript, managedDir, strerror(errno));
+    return MF_NO_DIR;
+  }
+  // The fun of Solaris - readdir_r requires a buffer passed into it
+  //   The man page says this obscene expression gives us the proper
+  //     size
+  dirEntry = (struct dirent *)ats_malloc(sizeof(struct dirent) + pathconf(".", _PC_NAME_MAX) + 1);
+
+  struct dirent *result;
+  while (readdir_r(dir, dirEntry, &result) == 0) {
+    if (!result)
+      break;
+    fileName = dirEntry->d_name;
+    filePath = newPathString(managedDir, fileName);
+    records_config_filePath = newPathString(filePath, "records.config");
+    if (stat(filePath, &fileInfo) < 0) {
+      mgmt_log(stderr, "[MultiFile::WalkFiles] Stat of a %s failed %s: %s\n", dirDescript, fileName, strerror(errno));
+    } else {
+      if (stat(records_config_filePath, &records_config_fileInfo) < 0) {
+        delete[]filePath;
+        continue;
+      }
+      // Ignore ., .., and any dot files
+      if (*fileName != '.' && isManaged(fileName)) {
+        fileListEntry = (fileEntry *)ats_malloc(sizeof(fileEntry));
+        fileListEntry->c_time = fileInfo.st_ctime;
+        ink_strlcpy(fileListEntry->name, fileName, sizeof(fileListEntry->name));
+        fileList->addEntry(fileListEntry);
+      }
+    }
+    delete[]filePath;
+  }
+
+  ats_free(dirEntry);
+  closedir(dir);
+
+  fileList->sortWithFunction(fileEntryCmpFunc);
+  delete[]records_config_filePath;
+  return MF_OK;
+}
+
+
+bool
+MultiFile::isManaged(const char *fileName)
+{
+  if (fileName == NULL) {
+    return false;
+  } else {
+    return true;
+  }
+}
+
+void
+MultiFile::addSelectOptions(textBuffer * output, ExpandingArray * options)
+{
+  const char selectEnd[] = "</select>\n";
+  const char option[] = "\t<option value='";
+  const int optionLen = strlen(option);
+  const char option_end[] = "'>";
+  char *safeCurrent;
+
+  int numOptions = options->getNumEntries();
+
+  for (int i = 0; i < numOptions; i++) {
+    output->copyFrom(option, optionLen);
+    safeCurrent = substituteForHTMLChars((char *) ((*options)[i]));
+    output->copyFrom(safeCurrent, strlen(safeCurrent));
+    output->copyFrom(option_end, strlen(option_end));
+    output->copyFrom(safeCurrent, strlen(safeCurrent));
+    delete[]safeCurrent;
+    output->copyFrom("\n", 1);
+  }
+  output->copyFrom(selectEnd, strlen(selectEnd));
+}
+
+//  int fileEntryCmpFunc(void* e1, void* e2)
+//
+//  a cmp function for fileEntry structs that can
+//     used with qsort
+//
+//  compares c_time
+//
+int
+fileEntryCmpFunc(const void *e1, const void *e2)
+{
+  fileEntry *entry1 = (fileEntry *) * (void **) e1;
+  fileEntry *entry2 = (fileEntry *) * (void **) e2;
+
+  if (entry1->c_time > entry2->c_time) {
+    return 1;
+  } else if (entry1->c_time < entry2->c_time) {
+    return -1;
+  } else {
+    return 0;
+  }
+}
+
+// char* MultiFile::newPathString(const char* s1, const char* s2)
+//
+//   creates a new string that is composed of s1/s2
+//     Callee is responsible for deleting storage
+//     Method makes sure there is no double slash between s1 and s2
+//     The code is borrowed from ink_filepath_make with dynamic allocation.
+//
+char *
+MultiFile::newPathString(const char *s1, const char *s2)
+{
+  char *newStr;
+  int  srcLen; // is the length of the src rootpath
+  int  addLen; // maximum total path length
+
+  // Treat null as an empty path.
+  if (!s2)
+    s2 = "";
+  addLen = strlen(s2) + 1;
+  if (*s2 == '/') {
+    // If addpath is rooted, then rootpath is unused.
+    newStr = new char[addLen];
+    ink_strlcpy(newStr, s2, addLen);
+    return newStr;
+  }
+  if (!s1 || !*s1) {
+    // If there's no rootpath return the addpath
+    newStr = new char[addLen];
+    ink_strlcpy(newStr, s2, addLen);
+    return newStr;
+  }
+  srcLen = strlen(s1);
+  newStr = new char[srcLen + addLen + 1];
+  ink_assert(newStr != NULL);
+
+  ink_strlcpy(newStr, s1, addLen);
+  if (newStr[srcLen - 1] != '/')
+    newStr[srcLen++] = '/';
+  ink_strlcpy(&newStr[srcLen], s2, addLen - srcLen);
+
+  return newStr;
+}
diff --git a/mgmt/MultiFile.h b/mgmt/MultiFile.h
new file mode 100644
index 00000000..d4984868
--- /dev/null
+++ b/mgmt/MultiFile.h
@@ -0,0 +1,77 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _MULTI_FILE_H_
+#define _MULTI_FILE_H_
+
+/****************************************************************************
+ *
+ *  MultiFile.h - base class to handle reading and displaying config
+ *                 files and directories
+ *
+ *
+ ****************************************************************************/
+
+//#include "libts.h"
+#include "WebGlobals.h"
+
+class ExpandingArray;
+class textBuffer;
+
+struct fileEntry
+{
+  char name[FILE_NAME_MAX];
+  time_t c_time;
+};
+
+enum MFresult
+{ MF_OK, MF_NO_DIR };
+
+// class MultiFile
+//
+//  The purpose of this class is to allow Snapshots and
+//    Autoconfig to share common code for reading directories
+//    and displaying editing information
+//
+//  Locking issues are up to the child class
+//  No Virtual Functions.  There is not a reason to for anyone to
+//    use MultiFile* so I'm saving the overhead of virtual tables
+//
+class MultiFile
+{
+public:
+  MultiFile();
+protected:
+
+  MFresult WalkFiles(ExpandingArray * fileList);
+  void addTableEntries(ExpandingArray * fileList, textBuffer * output);
+  char *newPathString(const char *s1, const char *s2);
+  bool isManaged(const char *fileName);
+  void addSelectOptions(textBuffer * output, ExpandingArray * options);
+  char *managedDir;
+  const char *dirDescript;
+};
+
+int fileEntryCmpFunc(const void *e1, const void *e2);
+
+#endif
diff --git a/mgmt/ProcessManager.cc b/mgmt/ProcessManager.cc
new file mode 100644
index 00000000..03288932
--- /dev/null
+++ b/mgmt/ProcessManager.cc
@@ -0,0 +1,343 @@
+/** @file
+
+  File contains the member function defs and thread loop for the process manager.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "libts.h"
+#undef HTTP_CACHE
+#include "InkAPIInternal.h"
+#include "MgmtUtils.h"
+#define _PROCESS_MANAGER
+#include "ProcessManager.h"
+
+#include "ink_apidefs.h"
+#include "MgmtSocket.h"
+#include "I_Layout.h"
+
+/*
+ * Global ProcessManager
+ */
+inkcoreapi ProcessManager *pmgmt = NULL;
+
+/*
+ * startProcessManager(...)
+ *   The start function and thread loop for the process manager.
+ */
+void *
+startProcessManager(void *arg)
+{
+  void *ret = arg;
+
+  while (!pmgmt) {              /* Avert race condition, thread spun during constructor */
+    Debug("pmgmt", "[startProcessManager] Waiting for initialization of object...\n");
+    mgmt_sleep_sec(1);
+  }
+  if (pmgmt->require_lm) {      /* Allow p. process to run w/o a lm */
+    pmgmt->initLMConnection();
+  }
+
+  for (;;) {
+    if (pmgmt->require_lm) {
+      pmgmt->pollLMConnection();
+    }
+    pmgmt->processEventQueue();
+    pmgmt->processSignalQueue();
+    mgmt_sleep_sec(pmgmt->timeout);
+  }
+  return ret;
+}                               /* End startProcessManager */
+
+ProcessManager::ProcessManager(bool rlm):
+BaseManager(), require_lm(rlm), mgmt_sync_key(0), local_manager_sockfd(0), cbtable(NULL)
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+
+  ink_strlcpy(pserver_path, rundir, sizeof(pserver_path));
+  mgmt_signal_queue = create_queue();
+
+  // Set temp. process/manager timeout. Will be reconfigure later.
+  // Making the process_manager thread a spinning thread to start traffic server
+  // as quickly as possible. Will reset this timeout when reconfigure()
+  timeout = 0;
+  pid = getpid();
+}                               /* End ProcessManager::ProcessManager */
+
+
+void
+ProcessManager::reconfigure()
+{
+  bool found;
+  timeout = REC_readInteger("proxy.config.process_manager.timeout", &found);
+  ink_assert(found);
+
+  return;
+}                               /* End ProcessManager::reconfigure */
+
+
+void
+ProcessManager::signalManager(int msg_id, const char *data_str)
+{
+  signalManager(msg_id, data_str, strlen(data_str) + 1);
+  return;
+}                               /* End ProcessManager::signalManager */
+
+
+void
+ProcessManager::signalManager(int msg_id, const char *data_raw, int data_len)
+{
+
+  MgmtMessageHdr *mh;
+
+  mh = (MgmtMessageHdr *)ats_malloc(sizeof(MgmtMessageHdr) + data_len);
+  mh->msg_id = msg_id;
+  mh->data_len = data_len;
+  memcpy((char *) mh + sizeof(MgmtMessageHdr), data_raw, data_len);
+  ink_assert(enqueue(mgmt_signal_queue, mh));
+  return;
+
+}                               /* End ProcessManager::signalManager */
+
+
+bool
+ProcessManager::processEventQueue()
+{
+  bool ret = false;
+
+  while (!queue_is_empty(mgmt_event_queue)) {
+    MgmtMessageHdr *mh = (MgmtMessageHdr *) dequeue(mgmt_event_queue);
+
+    Debug("pmgmt", "[ProcessManager] ==> Processing event id '%d' payload=%d\n", mh->msg_id, mh->data_len);
+    if (mh->data_len > 0) {
+      executeMgmtCallback(mh->msg_id, (char *) mh + sizeof(MgmtMessageHdr), mh->data_len);
+    } else {
+      executeMgmtCallback(mh->msg_id, NULL, 0);
+    }
+    if (mh->msg_id == MGMT_EVENT_SHUTDOWN) {
+      mgmt_log(stderr, "[ProcessManager::processEventQueue] Shutdown msg received, exiting\n");
+      _exit(0);
+    }                           /* Exit on shutdown */
+    ats_free(mh);
+    ret = true;
+  }
+  return ret;
+}                               /* End ProcessManager::processEventQueue */
+
+
+bool
+ProcessManager::processSignalQueue()
+{
+  bool ret = false;
+
+  while (!queue_is_empty(mgmt_signal_queue)) {
+    MgmtMessageHdr *mh = (MgmtMessageHdr *) dequeue(mgmt_signal_queue);
+
+    Debug("pmgmt", "[ProcessManager] ==> Signalling local manager '%d'\n", mh->msg_id);
+
+    if (require_lm && mgmt_write_pipe(local_manager_sockfd, (char *) mh, sizeof(MgmtMessageHdr) + mh->data_len) <= 0) {
+      mgmt_fatal(stderr, errno, "[ProcessManager::processSignalQueue] Error writing message!");
+      //ink_assert(enqueue(mgmt_signal_queue, mh));
+    } else {
+      ats_free(mh);
+      ret = true;
+    }
+  }
+
+  return ret;
+}                               /* End ProcessManager::processSignalQueue */
+
+
+void
+ProcessManager::initLMConnection()
+{
+  char message[1024];
+
+  MgmtMessageHdr mh_hdr;
+  MgmtMessageHdr *mh_full;
+  int data_len;
+  char *sync_key_raw = NULL;
+
+  int servlen;
+  struct sockaddr_un serv_addr;
+
+  /* Setup Connection to LocalManager */
+  memset((char *) &serv_addr, 0, sizeof(serv_addr));
+  serv_addr.sun_family = AF_UNIX;
+
+  snprintf(message, sizeof(message), "%s/%s", pserver_path, LM_CONNECTION_SERVER);
+  ink_strlcpy(serv_addr.sun_path, message, sizeof(serv_addr.sun_path));
+#if defined(darwin) || defined(freebsd)
+  servlen = sizeof(sockaddr_un);
+#else
+  servlen = strlen(serv_addr.sun_path) + sizeof(serv_addr.sun_family);
+#endif
+  if ((local_manager_sockfd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
+    mgmt_fatal(stderr, errno, "[ProcessManager::initLMConnection] Unable to create socket\n");
+  }
+
+  if (fcntl(local_manager_sockfd, F_SETFD, 1) < 0) {
+    mgmt_fatal(stderr, errno, "[ProcessManager::initLMConnection] Unable to set close-on-exec\n");
+  }
+
+  if ((connect(local_manager_sockfd, (struct sockaddr *) &serv_addr, servlen)) < 0) {
+    mgmt_fatal(stderr, errno, "[ProcessManager::initLMConnection] Connect failed\n");
+  }
+
+  data_len = sizeof(pid_t);
+  mh_full = (MgmtMessageHdr *) alloca(sizeof(MgmtMessageHdr) + data_len);
+  mh_full->msg_id = MGMT_SIGNAL_PID;
+  mh_full->data_len = data_len;
+  memcpy((char *) mh_full + sizeof(MgmtMessageHdr), &(pid), data_len);
+  if (mgmt_write_pipe(local_manager_sockfd, (char *) mh_full, sizeof(MgmtMessageHdr) + data_len) <= 0) {
+    mgmt_fatal(stderr, errno, "[ProcessManager::initLMConnection] Error writing message!\n");
+  }
+
+  /* Read SYNC_KEY from manager */
+  if (mgmt_read_pipe(local_manager_sockfd, (char *) &mh_hdr, sizeof(MgmtMessageHdr)) <= 0) {
+    mgmt_fatal(stderr, errno, "[ProcessManager::initLMConnection] Error reading sem message!\n");
+  } else {
+    // coverity[uninit_use]
+    mh_full = (MgmtMessageHdr *) alloca(sizeof(MgmtMessageHdr) + mh_hdr.data_len);
+    memcpy(mh_full, &mh_hdr, sizeof(MgmtMessageHdr));
+    sync_key_raw = (char *) mh_full + sizeof(MgmtMessageHdr);
+    if (mgmt_read_pipe(local_manager_sockfd, sync_key_raw, mh_hdr.data_len) < 0) {
+      mgmt_fatal(stderr, errno, "[ProcessManager::initLMConnection] Error reading sem message!\n");
+    }
+  }
+
+
+
+  if (sync_key_raw)
+    memcpy(&mgmt_sync_key, sync_key_raw, sizeof(mgmt_sync_key));
+  Debug("pmgmt", "[ProcessManager::initLMConnection] Received key: %d\n", mgmt_sync_key);
+
+}                               /* End ProcessManager::initLMConnection */
+
+
+void
+ProcessManager::pollLMConnection()
+{
+  int res;
+  struct timeval poll_timeout;
+
+  MgmtMessageHdr mh_hdr;
+  MgmtMessageHdr *mh_full;
+  char *data_raw;
+
+  int num;
+  fd_set fdlist;
+
+  while (1) {
+
+    // poll only
+    poll_timeout.tv_sec = 0;
+    poll_timeout.tv_usec = 1000;
+
+    FD_ZERO(&fdlist);
+    FD_SET(local_manager_sockfd, &fdlist);
+    num = mgmt_select(FD_SETSIZE, &fdlist, NULL, NULL, &poll_timeout);
+    if (num == 0) {             /* Have nothing */
+
+      break;
+
+    } else if (num > 0) {       /* We have a message */
+
+      if ((res = mgmt_read_pipe(local_manager_sockfd, (char *) &mh_hdr, sizeof(MgmtMessageHdr))) > 0) {
+        mh_full = (MgmtMessageHdr *) alloca(sizeof(MgmtMessageHdr) + mh_hdr.data_len);
+        memcpy(mh_full, &mh_hdr, sizeof(MgmtMessageHdr));
+        data_raw = (char *) mh_full + sizeof(MgmtMessageHdr);
+        if ((res = mgmt_read_pipe(local_manager_sockfd, data_raw, mh_hdr.data_len)) > 0) {
+          Debug("pmgmt", "[ProcessManager::pollLMConnection] Message: '%d'", mh_full->msg_id);
+          handleMgmtMsgFromLM(mh_full);
+        } else if (res < 0) {
+          mgmt_fatal(stderr, errno, "[ProcessManager::pollLMConnection] Error in read!");
+        }
+      } else if (res < 0) {
+        mgmt_fatal(stderr, errno, "[ProcessManager::pollLMConnection] Error in read!");
+      }
+      // handle EOF
+      if (res == 0) {
+        close_socket(local_manager_sockfd);
+        mgmt_fatal(stderr, 0, "[ProcessManager::pollLMConnection] Lost Manager EOF!");
+      }
+
+    } else if (num < 0) {       /* Error */
+      mgmt_elog(stderr, 0, "[ProcessManager::pollLMConnection] select failed or was interrupted (%d)\n", errno);
+    }
+
+  }
+
+}                               /* End ProcessManager::pollLMConnection */
+
+void
+ProcessManager::handleMgmtMsgFromLM(MgmtMessageHdr * mh)
+{
+  char *data_raw = (char *) mh + sizeof(MgmtMessageHdr);
+
+  switch (mh->msg_id) {
+  case MGMT_EVENT_SHUTDOWN:
+    signalMgmtEntity(MGMT_EVENT_SHUTDOWN);
+    break;
+  case MGMT_EVENT_RESTART:
+    signalMgmtEntity(MGMT_EVENT_RESTART);
+    break;
+  case MGMT_EVENT_CLEAR_STATS:
+    signalMgmtEntity(MGMT_EVENT_CLEAR_STATS);
+    break;
+  case MGMT_EVENT_ROLL_LOG_FILES:
+    signalMgmtEntity(MGMT_EVENT_ROLL_LOG_FILES);
+    break;
+  case MGMT_EVENT_PLUGIN_CONFIG_UPDATE:
+    if (data_raw != NULL && data_raw[0] != '\0' && this->cbtable) {
+      this->cbtable->invoke(data_raw);
+    }
+    break;
+  case MGMT_EVENT_HTTP_CLUSTER_DELTA:
+    signalMgmtEntity(MGMT_EVENT_HTTP_CLUSTER_DELTA, data_raw);
+    break;
+  case MGMT_EVENT_CONFIG_FILE_UPDATE:
+  case MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION:
+    /*
+      librecords -- we don't do anything in here because we are traffic_server
+      and we are not the owner of proxy.config.* variables.
+      Even if we trigger the sync_required bit, by
+      RecSetSynRequired, the sync. message will send back to
+      traffic_manager. And traffic_manager founds out that, the
+      actual value of the config variable didn't changed.
+      At the end, the sync_required bit is not set and we will
+      never get notified and callbacks are never invoked.
+
+      The solution is to set the sync_required bit on the
+      manager side. See LocalManager::sendMgmtMsgToProcesses()
+      for details.
+    */
+    break;
+  case MGMT_EVENT_LIBRECORDS:
+    signalMgmtEntity(MGMT_EVENT_LIBRECORDS, data_raw, mh->data_len);
+    break;
+  case MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE:
+    signalMgmtEntity(MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE, data_raw, mh->data_len);
+    break;
+  default:
+    mgmt_elog(stderr, 0, "[ProcessManager::pollLMConnection] unknown type %d\n", mh->msg_id);
+    break;
+  }
+}
diff --git a/mgmt/ProcessManager.h b/mgmt/ProcessManager.h
new file mode 100644
index 00000000..9696b6d2
--- /dev/null
+++ b/mgmt/ProcessManager.h
@@ -0,0 +1,109 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *
+ * ProcessManager.h
+ *   Process Manager Class, derived from BaseManager. Class provides callback
+ * registration for management events as well as the interface to the outside
+ * world.
+ *
+ * $Date: 2003-06-01 18:37:18 $
+ *
+ *
+ */
+
+#ifndef _PROCESS_MANAGER_H
+#define _PROCESS_MANAGER_H
+
+#include "MgmtUtils.h"
+#include "BaseManager.h"
+#include "ink_sock.h"
+
+#include "ink_apidefs.h"
+
+class ConfigUpdateCbTable;
+
+void *startProcessManager(void *arg);
+class ProcessManager:public BaseManager
+{
+
+public:
+  ProcessManager(bool rlm);
+  ~ProcessManager()
+  {
+    close_socket(local_manager_sockfd);
+    while (!queue_is_empty(mgmt_signal_queue)) {
+      char *sig = (char *) dequeue(mgmt_signal_queue);
+      ats_free(sig);
+    }
+    ats_free(mgmt_signal_queue);
+  }
+
+  void start()
+  {
+    ink_thread_create(startProcessManager, 0);
+  }
+
+  void stop()
+  {
+    mgmt_log(stderr, "[ProcessManager::stop] Bringing down connection\n");
+    close_socket(local_manager_sockfd);
+  }
+
+  inkcoreapi void signalManager(int msg_id, const char *data_str);
+  inkcoreapi void signalManager(int msg_id, const char *data_raw, int data_len);
+
+  void reconfigure();
+  void initLMConnection();
+  void pollLMConnection();
+  void handleMgmtMsgFromLM(MgmtMessageHdr * mh);
+
+  bool processEventQueue();
+  bool processSignalQueue();
+
+  void registerPluginCallbacks(ConfigUpdateCbTable * _cbtable) {
+    cbtable = _cbtable;
+  }
+
+  bool require_lm;
+  time_t timeout;
+  char pserver_path[1024];
+  int mgmt_sync_key;
+
+  LLQ *mgmt_signal_queue;
+
+  pid_t pid;
+
+  int local_manager_sockfd;
+
+private:
+  ConfigUpdateCbTable * cbtable;
+};                              /* End class ProcessManager */
+
+#ifndef _PROCESS_MANAGER
+#define _PROCESS_MANAGER
+inkcoreapi extern ProcessManager *pmgmt;
+#endif /* _PROCESS_MANAGER */
+
+#endif /* _PROCESS_MANAGER_H */
diff --git a/mgmt/ProxyConfig.cc b/mgmt/ProxyConfig.cc
new file mode 100644
index 00000000..9576f582
--- /dev/null
+++ b/mgmt/ProxyConfig.cc
@@ -0,0 +1,365 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "ProxyConfig.h"
+#include "P_EventSystem.h"
+#include "ts/TestBox.h"
+
+ConfigProcessor configProcessor;
+
+
+void *
+config_int_cb(void *data, void *value)
+{
+  *(int *) data = *(int64_t *) value;
+  return NULL;
+}
+
+void *
+config_float_cb(void *data, void *value)
+{
+  *(float *) data = *(float *) value;
+  return NULL;
+}
+
+void *
+config_long_long_cb(void *data, void *value)
+{
+  *(int64_t *) data = *(int64_t *) value;
+  return NULL;
+}
+
+/////////////////////////////////////////////////////////////
+//
+//  config_string_alloc_cb()
+//
+//  configuration callback function. The function is called
+//  by the manager when a string configuration variable
+//  changed. It allocates new memory for the new data.
+//  the old variable is scheduled to be freed using
+//  ConfigFreerContinuation which will free the memory
+//  used for this variable after long time, assuming that
+//  during all this time all the users of this memory will
+//  disappear.
+/////////////////////////////////////////////////////////////
+void *
+config_string_alloc_cb(void *data, void *value)
+{
+  char *_ss = (char *) value;
+  char *_new_value = 0;
+
+//#define DEBUG_CONFIG_STRING_UPDATE
+#if defined (DEBUG_CONFIG_STRING_UPDATE)
+  printf("config callback [new, old] = [%s : %s]\n",
+         (_ss) ? (_ss) : (""), (*(char **) data) ? (*(char **) data) : (""));
+#endif
+  int len = -1;
+  if (_ss) {
+    len = strlen(_ss);
+    _new_value = (char *)ats_malloc(len + 1);
+    memcpy(_new_value, _ss, len + 1);
+  }
+
+  char *_temp2 = *(char **) data;
+  *(char **) data = _new_value;
+
+  // free old data
+  if (_temp2 != 0)
+    new_Freer(_temp2, HRTIME_DAY);
+
+  return NULL;
+}
+
+
+class ConfigInfoReleaser:public Continuation
+{
+public:
+  ConfigInfoReleaser(unsigned int id, ConfigInfo * info)
+    : Continuation(new_ProxyMutex()), m_id(id), m_info(info)
+  {
+    SET_HANDLER(&ConfigInfoReleaser::handle_event);
+  }
+
+  int handle_event(int /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+  {
+    configProcessor.release(m_id, m_info);
+    delete this;
+    return EVENT_DONE;
+  }
+
+public:
+  unsigned int m_id;
+  ConfigInfo *m_info;
+};
+
+
+ConfigProcessor::ConfigProcessor()
+  : ninfos(0)
+{
+  int i;
+
+  for (i = 0; i < MAX_CONFIGS; i++) {
+    infos[i] = NULL;
+  }
+}
+
+unsigned int
+ConfigProcessor::set(unsigned int id, ConfigInfo * info, unsigned timeout_secs)
+{
+  ConfigInfo *old_info;
+  int idx;
+
+  if (id == 0) {
+    id = ink_atomic_increment((int *) &ninfos, 1) + 1;
+    ink_assert(id != 0);
+    ink_assert(id <= MAX_CONFIGS);
+  }
+
+  // Don't be an idiot and use a zero timeout ...
+  ink_assert(timeout_secs > 0);
+
+  // New objects *must* start with a zero refcount. The config
+  // processor holds it's own refcount. We should be the only
+  // refcount holder at this point.
+  ink_release_assert(info->refcount_inc() == 1);
+
+  if (id > MAX_CONFIGS) {
+    // invalid index
+    Error("[ConfigProcessor::set] invalid index");
+    return 0;
+  }
+
+  idx = id - 1;
+
+  do {
+    old_info = infos[idx];
+  } while (!ink_atomic_cas(&infos[idx], old_info, info));
+
+  if (old_info) {
+    // The ConfigInfoReleaser now takes our refcount, but
+    // someother thread might also have one ...
+    ink_assert(old_info->refcount() > 0);
+    eventProcessor.schedule_in(new ConfigInfoReleaser(id, old_info), HRTIME_SECONDS(timeout_secs));
+  }
+
+  return id;
+}
+
+ConfigInfo *
+ConfigProcessor::get(unsigned int id)
+{
+  ConfigInfo *info;
+  int idx;
+
+  ink_assert(id != 0);
+  ink_assert(id <= MAX_CONFIGS);
+
+  if (id == 0 || id > MAX_CONFIGS) {
+    // return NULL, because we of an invalid index
+    return NULL;
+  }
+
+  idx = id - 1;
+  info = infos[idx];
+
+  // Hand out a refcount to the caller. We should still have out
+  // own refcount, so it should be at least 2.
+  ink_release_assert(info->refcount_inc() > 1);
+  return info;
+}
+
+void
+ConfigProcessor::release(unsigned int id, ConfigInfo * info)
+{
+  int idx;
+
+  ink_assert(id != 0);
+  ink_assert(id <= MAX_CONFIGS);
+
+  if (id == 0 || id > MAX_CONFIGS) {
+    // nothing to delete since we have an invalid index
+    return;
+  }
+
+  idx = id - 1;
+
+  if (info->refcount_dec() == 0) {
+    // When we release, we should already have replaced this object in the index.
+    ink_release_assert(info != this->infos[idx]);
+    delete info;
+  }
+}
+
+#if TS_HAS_TESTS
+
+enum {
+  REGRESSION_CONFIG_FIRST   = 1,   // last config in a sequence
+  REGRESSION_CONFIG_LAST    = 2,   // last config in a sequence
+  REGRESSION_CONFIG_SINGLE  = 4, // single-owner config
+};
+
+struct RegressionConfig : public ConfigInfo
+{
+  static volatile int nobjects; // count of outstanding RegressionConfig objects (not-reentrant)
+
+  // DeferredCall is a simple function call wrapper that defers itself until the RegressionConfig
+  // object count drops below the specified count.
+  template <typename CallType>
+  struct DeferredCall : public Continuation
+  {
+    DeferredCall(int _r, CallType _c) : remain(_r), call(_c) {
+      SET_HANDLER(&DeferredCall::handleEvent);
+    }
+
+    int handleEvent(int event ATS_UNUSED, Event * e) {
+      if (RegressionConfig::nobjects > this->remain) {
+        e->schedule_in(HRTIME_MSECONDS(500));
+        return EVENT_CONT;
+      }
+
+      call();
+      delete this;
+      return EVENT_DONE;
+    }
+
+    int       remain; // Number of remaining RegressionConfig objects to wait for.
+    CallType  call;
+  };
+
+  template <typename CallType>
+  static void defer(int count, CallType call) {
+      eventProcessor.schedule_in(new RegressionConfig::DeferredCall<CallType>(count, call), HRTIME_MSECONDS(500));
+  }
+
+  RegressionConfig(RegressionTest * r, int * ps, unsigned f)
+      : test(r), pstatus(ps), flags(f) {
+    if (this->flags & REGRESSION_CONFIG_SINGLE) {
+      TestBox box(this->test, this->pstatus);
+      box.check(this->refcount() == 1, "invalid refcount %d (should be 1)", this->refcount());
+    }
+
+    ink_atomic_increment(&nobjects, 1);
+  }
+
+  ~RegressionConfig() {
+    TestBox box(this->test, this->pstatus);
+
+    box.check(this->refcount() == 0, "invalid refcount %d (should be 0)", this->refcount());
+
+    // If we are the last config to be scheduled, pass the test.
+    // Otherwise, verify that the test is still running ...
+    if (REGRESSION_CONFIG_LAST & flags) {
+      *this->pstatus = REGRESSION_TEST_PASSED;
+    } else {
+      box.check(*this->pstatus == REGRESSION_TEST_INPROGRESS, "intermediate config out of sequence, *pstatus is %d", *pstatus);
+    }
+
+    ink_atomic_increment(&nobjects, -1);
+  }
+
+  RegressionTest * test;
+  int *     pstatus;
+  unsigned  flags;
+};
+
+volatile int RegressionConfig::nobjects = 0;
+
+struct ProxyConfig_Set_Completion
+{
+  ProxyConfig_Set_Completion(int _id, RegressionConfig * _c)
+    : configid(_id), config(_c) {
+  }
+
+  void operator() (void) const {
+    // Push one more RegressionConfig to force the LAST-tagged one to get destroyed.
+    rprintf(config->test, "setting LAST config object %p\n", config);
+    configProcessor.set(configid, config, 1);
+  }
+
+  int configid;
+  RegressionConfig * config;
+};
+
+// Test that ConfigProcessor::set() correctly releases the old ConfigInfo after a timeout.
+EXCLUSIVE_REGRESSION_TEST(ProxyConfig_Set)(RegressionTest * test, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  int configid = 0;
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  RegressionConfig::nobjects = 0;
+
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_LAST), 1);
+
+  // Wait until there's only 2 objects remaining, the one in ConfigProcessor, and the one we make here.
+  RegressionConfig::defer(2, ProxyConfig_Set_Completion(configid, new RegressionConfig(test, pstatus, 0)));
+}
+
+struct ProxyConfig_Release_Completion
+{
+  ProxyConfig_Release_Completion(int _id, RegressionConfig * _c)
+    : configid(_id), config(_c) {
+  }
+
+  void operator() (void) const {
+    // Release the reference count. Since we were keeping this alive, it should be the last to die.
+    configProcessor.release(configid, config);
+  }
+
+  int configid;
+  RegressionConfig * config;
+};
+
+// Test that ConfigProcessor::release() correctly releases the old ConfigInfo across an implicit
+// release timeout.
+EXCLUSIVE_REGRESSION_TEST(ProxyConfig_Release)(RegressionTest * test, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  int configid = 0;
+  RegressionConfig * config;
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  RegressionConfig::nobjects = 0;
+
+  // Set an initial config, then get it back to hold a reference count.
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_LAST), 1);
+  config = (RegressionConfig *)configProcessor.get(configid);
+
+  // Now update the config a few times.
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, REGRESSION_CONFIG_FIRST), 1);
+
+  configid = configProcessor.set(configid, new RegressionConfig(test, pstatus, 0), 1);
+
+  // Defer the release of the object that we held back until there are only 2 left. The one we are holding
+  // and the one in the ConfigProcessor. Then releasing the one we hold will trigger the LAST check
+  RegressionConfig::defer(2, ProxyConfig_Release_Completion(configid, config));
+}
+
+#endif /* TS_HAS_TESTS */
diff --git a/mgmt/ProxyConfig.h b/mgmt/ProxyConfig.h
new file mode 100644
index 00000000..39afd928
--- /dev/null
+++ b/mgmt/ProxyConfig.h
@@ -0,0 +1,143 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ProxyConfig.h
+
+
+  ****************************************************************************/
+
+#ifndef _Proxy_Config_h
+#define _Proxy_Config_h
+
+#include "libts.h"
+#include "ProcessManager.h"
+#include "I_EventSystem.h"
+
+class ProxyMutex;
+
+void *config_int_cb(void *data, void *value);
+void *config_long_long_cb(void *data, void *value);
+void *config_float_cb(void *data, void *value);
+void *config_string511_cb(void *data, void *value);
+void *config_string_alloc_cb(void *data, void *value);
+
+//
+// Macros that spin waiting for the data to be bound
+//
+#define SignalManager(_n,_d) pmgmt->signalManager(_n,(char*)_d)
+#define SignalWarning(_n,_s) { Warning("%s", _s); SignalManager(_n,_s); }
+
+#define RegisterMgmtCallback(_signal,_fn,_data) \
+pmgmt->registerMgmtCallback(_signal,_fn,_data)
+
+#define MAX_CONFIGS  100
+
+typedef RefCountObj ConfigInfo;
+
+class ConfigProcessor
+{
+public:
+  ConfigProcessor();
+
+  enum {
+    // The number of seconds to wait before garbage collecting stale ConfigInfo objects. There's
+    // no good reason to tune this, outside of regression tests, so don't.
+    CONFIG_PROCESSOR_RELEASE_SECS = 60
+  };
+
+  template <typename ClassType, typename ConfigType>
+  struct scoped_config {
+    scoped_config() : ptr(ClassType::acquire()) {}
+    ~scoped_config() { ClassType::release(ptr); }
+
+    operator bool() const { return ptr != 0; }
+    operator const ConfigType * () const { return ptr; }
+    const ConfigType * operator->() const { return ptr; }
+
+  private:
+    ConfigType * ptr;
+  };
+
+  unsigned int set(unsigned int id, ConfigInfo * info, unsigned timeout_secs = CONFIG_PROCESSOR_RELEASE_SECS);
+  ConfigInfo *get(unsigned int id);
+  void release(unsigned int id, ConfigInfo * data);
+
+public:
+  ConfigInfo *infos[MAX_CONFIGS];
+  int ninfos;
+};
+
+// A Continuation wrapper that calls the static reconfigure() method of the given class.
+template <typename UpdateClass>
+struct ConfigUpdateContinuation : public Continuation
+{
+
+  int update(int /* etype */, void * /* data */) {
+    UpdateClass::reconfigure();
+    delete this;
+    return EVENT_DONE;
+  }
+
+  ConfigUpdateContinuation(ProxyMutex * m) : Continuation(m) {
+    SET_HANDLER(&ConfigUpdateContinuation::update);
+  }
+
+};
+
+template <typename UpdateClass> int
+ConfigScheduleUpdate(ProxyMutex * mutex) {
+  eventProcessor.schedule_imm(new ConfigUpdateContinuation<UpdateClass>(mutex), ET_CALL);
+  return 0;
+}
+
+template <typename UpdateClass>
+struct ConfigUpdateHandler
+{
+  ConfigUpdateHandler() : mutex(new_ProxyMutex()) {
+  }
+
+  ~ConfigUpdateHandler() {
+    mutex->free();
+  }
+
+  int attach(const char * name) {
+    return REC_RegisterConfigUpdateFunc(name, ConfigUpdateHandler::update, this);
+  }
+
+private:
+  static int update(const char * name, RecDataT /* data_type ATS_UNUSED */, RecData /* data ATS_UNUSED */,
+                    void * cookie) {
+    ConfigUpdateHandler * self = static_cast<ConfigUpdateHandler *>(cookie);
+
+    Debug("config", "%s(%s)", __PRETTY_FUNCTION__, name);
+    return ConfigScheduleUpdate<UpdateClass>(self->mutex);
+  }
+
+  Ptr<ProxyMutex> mutex;
+};
+
+extern ConfigProcessor configProcessor;
+
+#endif
diff --git a/mgmt/RecordsConfig.cc b/mgmt/RecordsConfig.cc
new file mode 100644
index 00000000..f02912ac
--- /dev/null
+++ b/mgmt/RecordsConfig.cc
@@ -0,0 +1,2141 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "ink_config.h"
+#include "RecordsConfig.h"
+#include "ParseRules.h"
+
+//-------------------------------------------------------------------------
+// RecordsConfig
+//-------------------------------------------------------------------------
+
+RecordElement RecordsConfig[] = {
+  //##############################################################################
+  //#
+  //# records.config items
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.product_company", RECD_STRING, "Apache Software Foundation", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.product_vendor", RECD_STRING, "Apache", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.product_name", RECD_STRING, "Traffic Server", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.proxy_name", RECD_STRING, "<proxy_name>", RECU_DYNAMIC, RR_REQUIRED, RECC_STR, ".+", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.bin_path", RECD_STRING, "bin", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.proxy_binary", RECD_STRING, "traffic_server", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.manager_binary", RECD_STRING, "traffic_manager", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.proxy_binary_opts", RECD_STRING, "-M", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.env_prep", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.config_dir", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // Jira TS-21
+  {RECT_CONFIG, "proxy.config.local_state_dir", RECD_STRING, TS_BUILD_RUNTIMEDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.alarm_email", RECD_STRING, TS_PKGSYSUSER, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.syslog_facility", RECD_STRING, "LOG_DAEMON", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Negative core limit means max out limit
+  {RECT_CONFIG, "proxy.config.core_limit", RECD_INT, "-1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.stack_dump_enabled", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // 0 - Disabled, 1 - enabled for important pages (e.g. cache directory), 2 - enabled for all pages
+  {RECT_CONFIG, "proxy.config.mlock_enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cop.core_signal", RECD_INT, "0", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,                             // needed by traffic_cop
+  {RECT_CONFIG, "proxy.config.cop.linux_min_swapfree_kb", RECD_INT, "0", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,                             // needed by traffic_cop
+  {RECT_CONFIG, "proxy.config.cop.linux_min_memfree_kb", RECD_INT, "0", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,                             // needed by traffic_cop
+  //# 0 = disable (seconds)
+  {RECT_CONFIG, "proxy.config.dump_mem_info_frequency", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# 0 = disable
+  {RECT_CONFIG, "proxy.config.http_ui_enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.max_disk_errors", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.output.logfile", RECD_STRING, "traffic.out", RECU_RESTART_TC, RR_REQUIRED, RECC_NULL, NULL,
+   RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.snapshot_dir", RECD_STRING, "snapshots", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net_snapshot_filename", RECD_STRING, "net.config.xml", RECU_NULL, RR_NULL, RECC_NULL, NULL,
+   RECA_NULL}
+  ,
+  //# 0 = disable
+  {RECT_CONFIG, "proxy.config.res_track_memory", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //##############################################################################
+  //# Traffic Server system settings
+  //##############################################################################
+  // The maximum number of chunks to allocate with mmap. Setting this to zero disables all use of mmap. (Unix only)
+  {RECT_CONFIG, "proxy.config.system.mmap_max", RECD_INT, "2097152", RECU_RESTART_TS, RR_NULL, RECC_INT, NULL, RECA_READ_ONLY}
+  ,
+  // The percent of the /proc/sys/fs/file-max value to set the RLIMIT_NOFILE cur/max to
+  {RECT_CONFIG, "proxy.config.system.file_max_pct", RECD_FLOAT, "0.9", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_READ_ONLY}
+  ,
+  // Traffic Server Execution threads configuration
+  // By default Traffic Server set number of execution threads equal to total CPUs
+  {RECT_CONFIG, "proxy.config.exec_thread.autoconfig", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-65535]", RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.exec_thread.autoconfig.scale", RECD_FLOAT, "1.5", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.exec_thread.limit", RECD_INT, "2", RECU_RESTART_TS, RR_NULL, RECC_INT, "[1-1024]", RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.exec_thread.affinity", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.accept_threads", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.task_threads", RECD_INT, "2", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-99999]", RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.thread.default.stacksize", RECD_INT, "1048576", RECU_RESTART_TS, RR_NULL, RECC_INT, "[131072-104857600]", RECA_READ_ONLY}
+  ,
+  {RECT_CONFIG, "proxy.config.user_name", RECD_STRING, "nobody", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Support for SRV records
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.srv_enabled", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Support for disabling check for Accept-* / Content-* header mismatch
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_accept_mismatch", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_accept_language_mismatch", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_accept_encoding_mismatch", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_accept_charset_mismatch", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Redirection
+  //#
+  //# 1. redirection_enabled: if set to 1, redirection is enabled.
+  //# 2. number_of_redirectionse: The maximum number of redirections TS permits
+  //# 3. post_copy_size: The maximum POST data size TS permits to copy
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.http.redirection_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.number_of_redirections", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.redirect_host_no_port", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.post_copy_size", RECD_INT, "2048", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Diagnostics
+  //#
+  //# Enable by setting proxy.config.diags.debug.enabled to 1
+  //# Route each type of diagnostic with a string, each character representing:
+  //#    O  stdout
+  //#    E  stderr
+  //#    S  syslog
+  //#    L  diags.log
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.diags.debug.enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.debug.tags", RECD_STRING, "http.*|dns.*", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.action.enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.action.tags", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.show_location", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.diag", RECD_STRING, "E", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.debug", RECD_STRING, "E", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.status", RECD_STRING, "L", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.note", RECD_STRING, "L", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.warning", RECD_STRING, "L", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.error", RECD_STRING, "SL", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.fatal", RECD_STRING, "SL", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.alert", RECD_STRING, "L", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.diags.output.emergency", RECD_STRING, "SL", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Local Manager
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.lm.pserver_timeout_secs", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.lm.pserver_timeout_msecs", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.lm.sem_id", RECD_INT, "11452", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,                             // needed by cop
+  {RECT_CONFIG, "proxy.config.cluster.delta_thresh", RECD_INT, "30", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.peer_timeout", RECD_INT, "30", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.mc_send_interval", RECD_INT, "2", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.mc_poll_timeout", RECD_INT, "5", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.startup_timeout", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# cluster type requires restart to change
+  //# 1 is full clustering, 2 is mgmt only, 3 is no clustering
+  {RECT_LOCAL, "proxy.local.cluster.type", RECD_INT, "3", RECU_RESTART_TM, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.rsport", RECD_INT, "8088", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.mcport", RECD_INT, "8089", RECU_DYNAMIC, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.mc_group_addr", RECD_STRING, "224.0.1.37", RECU_DYNAMIC, RR_REQUIRED, RECC_IP, "[0-255]\\.[0-255]\\.[0-255]\\.[0-255]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.mc_ttl", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.log_bogus_mc_msgs", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.autoconf_port", RECD_INT, "8083", RECU_RESTART_TM, RR_REQUIRED, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.autoconf.doc_root", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.autoconf.localhost_only", RECD_INT, "1", RECU_RESTART_TM, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.autoconf.pac_filename", RECD_STRING, "proxy.pac", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.admin_user", RECD_STRING, "admin", RECU_DYNAMIC, RR_REQUIRED, RECC_STR, ".+", RECA_NO_ACCESS}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.number_config_bak", RECD_INT, "3", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.user_id", RECD_STRING, TS_PKGSYSUSER, RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.admin.cli_path", RECD_STRING, "cli", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# UDP configuration stuff: hidden variables
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.udp.free_cancelled_pkts_sec", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.udp.periodic_cleanup", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.udp.send_retries", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.udp.threads", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Process Manager
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.process_manager.timeout", RECD_INT, "5", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.process_manager.enable_mgmt_port", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.process_manager.mgmt_port", RECD_INT, "8084", RECU_NULL, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Virtual IP Manager
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.vmap.enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.vmap.addr_file", RECD_STRING, "vaddrs.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.vmap.down_up_timeout", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ping.npacks_to_trans", RECD_INT, "5", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ping.timeout_sec", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Alarm Configuration
+  //#
+  //##############################################################################
+  //        #################################################################
+  //        # execute alarm as "<abs_path>/<bin> "<MSG_STRING_FROM_PROXY>"" #
+  //        #################################################################
+  {RECT_CONFIG, "proxy.config.alarm.bin", RECD_STRING, "example_alarm_bin.sh", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.alarm.abs_path", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.alarm.script_runtime", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-300]", RECA_NULL}
+  ,
+
+  //####################################################################
+  //# congestion control
+  //####################################################################
+  {RECT_CONFIG, "proxy.config.http.congestion_control.enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.localtime", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.filename", RECD_STRING, "congestion.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.max_connection_failures", RECD_INT, "5", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.fail_window", RECD_INT, "120", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.proxy_retry_interval", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.client_wait_interval", RECD_INT, "300", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.wait_interval_alpha", RECD_INT, "30", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.live_os_conn_timeout", RECD_INT, "60", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.live_os_conn_retries", RECD_INT, "2", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.dead_os_conn_timeout", RECD_INT, "15", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.dead_os_conn_retries", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.max_connection", RECD_INT, "-1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.error_page", RECD_STRING, "congestion#retryAfter", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.congestion_control.default.congestion_scheme", RECD_STRING, "per_ip", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        ###########
+  //        # Parsing #
+  //        ###########
+  {RECT_CONFIG, "proxy.config.header.parse.no_host_url_redirect", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# HTTP Engine
+  //#
+  //##############################################################################
+  //        ##########
+  //        # basics #
+  //        ##########
+  //       #
+  //       # The main server_port is listed here, other server ports is a
+  //       # string of ports, separated by whitespace.
+  //       #
+  {RECT_CONFIG, "proxy.config.http.enabled", RECD_INT, "1", RECU_RESTART_TM, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_ports", RECD_STRING, "8080", RECU_RESTART_TM, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_port", RECD_INT, "-1", RECU_RESTART_TM, RR_NULL, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_port_attr", RECD_STRING, "X", RECU_RESTART_TM, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.wait_for_cache", RECD_INT, "0", RECU_RESTART_TM, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.insert_request_via_str", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.insert_response_via_str", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //        # verbose via string
+  //        #
+  //        # 0 - no extra info added to string
+  //        # 1 - all extra information added
+  //        # 2 - some extra info added
+  {RECT_CONFIG, "proxy.config.http.request_via_str", RECD_STRING, "ApacheTrafficServer/" PACKAGE_VERSION, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.response_via_str", RECD_STRING, "ApacheTrafficServer/" PACKAGE_VERSION, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.response_server_enabled", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.response_server_str", RECD_STRING, "ATS/" PACKAGE_VERSION, RECU_DYNAMIC, RR_NULL, RECC_NULL, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.enable_url_expandomatic", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.no_dns_just_forward_to_parent", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.uncacheable_requests_bypass_parent", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.no_origin_server_dns", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.use_client_target_addr", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.use_client_source_port", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.keep_alive_enabled_in", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.keep_alive_enabled_out", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.keep_alive_post_out", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.chunking_enabled", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.chunking.size", RECD_INT, "4096", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.flow_control.enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.flow_control.high_water", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.flow_control.low_water", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # Send http11 requests
+  //       #
+  //       #   0 - Never
+  //       #   1 - Always
+  //       #   2 - if the server has returned http1.1 before
+  //       #   3 - if the client request is 1.1 & the server
+  //       #         has returned 1.1 before
+  //       #
+  {RECT_CONFIG, "proxy.config.http.send_http11_requests", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.send_100_continue_response", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.share_server_sessions", RECD_INT, "2", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_session_sharing.match", RECD_STRING, "both", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_session_sharing.pool", RECD_STRING, "thread", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.record_heartbeat", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.record_tcp_mem_hit", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.default_buffer_size", RECD_INT, "8", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.default_buffer_water_mark", RECD_INT, "32768", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.enable_http_info", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_max_connections", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.server_tcp_init_cwnd", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "[0-16]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.origin_max_connections", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.origin_min_keep_alive_connections", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.attach_server_session_to_client", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+
+  //       ##########################
+  //       # HTTP referer filtering #
+  //       ##########################
+  {RECT_CONFIG, "proxy.config.http.referer_filter", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.referer_format_redirect", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.referer_default_redirect", RECD_STRING, "http://www.example.com/", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        ##############################
+  //        # parent proxy configuration #
+  //        ##############################
+  {RECT_CONFIG, "proxy.config.http.parent_proxy_routing_enable", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.parent_proxies", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.parent_proxy.file", RECD_STRING, "parent.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.parent_proxy.retry_time", RECD_INT, "300", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Parent fail threshold is the number of request that must fail within
+  //#  the retry window for the parent to be marked down
+  {RECT_CONFIG, "proxy.config.http.parent_proxy.fail_threshold", RECD_INT, "10", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.parent_proxy.total_connect_attempts", RECD_INT, "4", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.parent_proxy.per_parent_connect_attempts", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.parent_proxy.connect_attempts_timeout", RECD_INT, "30", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.forward.proxy_auth_to_parent", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        ###################################
+  //        # NO DNS DOC IN CACHE             #
+  //        ###################################
+  {RECT_CONFIG, "proxy.config.http.doc_in_cache_skip_dns", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+
+  //        ###################################
+  //        # HTTP connection timeouts (secs) #
+  //        ###################################
+  //       #
+  //       # out: proxy -> os connection
+  //       # in : ua -> proxy connection
+  //       #
+  {RECT_CONFIG, "proxy.config.http.keep_alive_no_activity_timeout_in", RECD_INT, "115", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.keep_alive_no_activity_timeout_out", RECD_INT, "120", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.transaction_no_activity_timeout_in", RECD_INT, "30", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.transaction_no_activity_timeout_out", RECD_INT, "30", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.transaction_active_timeout_in", RECD_INT, "900", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.transaction_active_timeout_out", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.accept_no_activity_timeout", RECD_INT, "120", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.background_fill_active_timeout", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.background_fill_completed_threshold", RECD_FLOAT, "0.0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        ##################################
+  //        # origin server connect attempts #
+  //        ##################################
+  {RECT_CONFIG, "proxy.config.http.connect_attempts_max_retries", RECD_INT, "6", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.connect_attempts_max_retries_dead_server", RECD_INT, "3", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.connect_attempts_rr_retries", RECD_INT, "3", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.connect_attempts_timeout", RECD_INT, "30", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.post_connect_attempts_timeout", RECD_INT, "1800", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.down_server.cache_time", RECD_INT, "300", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.down_server.abort_threshold", RECD_INT, "10", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.negative_revalidating_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.negative_revalidating_lifetime", RECD_INT, "1800", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.negative_caching_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.negative_caching_lifetime", RECD_INT, "1800", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        #########################
+  //        # proxy users variables #
+  //        #########################
+  {RECT_CONFIG, "proxy.config.http.anonymize_remove_from", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.anonymize_remove_referer", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.anonymize_remove_user_agent", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.anonymize_remove_cookie", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.anonymize_remove_client_ip", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.anonymize_insert_client_ip", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.anonymize_other_header_list", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.insert_squid_x_forwarded_for", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.insert_age_in_response", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.enable_http_stats", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.normalize_ae_gzip", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+
+  //        ####################################################
+  //        # Global User-Agent header                         #
+  //        ####################################################
+  {RECT_CONFIG, "proxy.config.http.global_user_agent_header", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+
+  //        ############
+  //        # security #
+  //        ############
+  {RECT_CONFIG, "proxy.config.http.request_header_max_size", RECD_INT, "131072", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.response_header_max_size", RECD_INT, "131072", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.push_method_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+
+  //        #################
+  //        # cache control #
+  //        #################
+  {RECT_CONFIG, "proxy.config.http.cache.http", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  // Enabling this setting allows the proxy to cache empty documents. This currently requires
+  // that the response has a Content-Length: header, with a value of "0".
+  {RECT_CONFIG, "proxy.config.http.cache.allow_empty_doc", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL }
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.cluster_cache_local", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_client_no_cache", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_client_cc_max_age", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ims_on_client_no_cache", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_server_no_cache", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # cache responses to cookies has 4 options
+  //       #
+  //       #  0 - do not cache any responses to cookies
+  //       #  1 - cache for any content-type (ignore cookies)
+  //       #  2 - cache only for image types
+  //       #  3 - cache for all but text content-types
+  //       #  4 - cache for all but text content-types except OS response without "Set-Cookie" or with "Cache-Control: public"
+  {RECT_CONFIG, "proxy.config.http.cache.cache_responses_to_cookies", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-4]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.ignore_authentication", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.cache_urls_that_look_dynamic", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.enable_default_vary_headers", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.max_open_read_retries", RECD_INT, "-1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.open_read_retry_time", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.max_open_write_retries", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       #  when_to_revalidate has 4 options:
+  //       #
+  //       #  0 - default. use use cache directives or heuristic
+  //       #  1 - stale if heuristic
+  //       #  2 - always stale (always revalidate)
+  //       #  3 - never stale
+  //       #
+  {RECT_CONFIG, "proxy.config.http.cache.when_to_revalidate", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //
+  //       #  required headers: three options
+  //       #
+  //       #  0 - No required headers to make document cachable
+  //       #  1 - at least, "Last-Modified:" header required
+  //       #  2 - explicit lifetime required, "Expires:" or "Cache-Control:"
+  //       #
+  {RECT_CONFIG, "proxy.config.http.cache.required_headers", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.max_stale_age", RECD_INT, "604800", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.range.lookup", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.range.write", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        ########################
+  //        # heuristic expiration #
+  //        ########################
+  {RECT_CONFIG, "proxy.config.http.cache.heuristic_min_lifetime", RECD_INT, "3600", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.heuristic_max_lifetime", RECD_INT, "86400", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.heuristic_lm_factor", RECD_FLOAT, "0.10", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.guaranteed_min_lifetime", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.guaranteed_max_lifetime", RECD_INT, "31536000", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.fuzz.time", RECD_INT, "240", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.fuzz.min_time", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.fuzz.probability", RECD_FLOAT, "0.005", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        #########################################
+  //        # dynamic content & content negotiation #
+  //        #########################################
+  {RECT_CONFIG, "proxy.config.http.cache.vary_default_text", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.vary_default_images", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.cache.vary_default_other", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+
+  //        ###################
+  //        # Error Reporting #
+  //        ###################
+  {RECT_CONFIG, "proxy.config.http.errors.log_error_pages", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.http.slow.log.threshold", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Customizable User Response Pages
+  //#
+  //##############################################################################
+  //# 1 - enable customizable user response pages in only the "default" directory
+  //# 2 - enable language-targeted user response pages
+  {RECT_CONFIG, "proxy.config.body_factory.enable_customizations", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT,
+    "[1-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.body_factory.enable_logging", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.body_factory.template_sets_dir", RECD_STRING, TS_BUILD_SYSCONFDIR "/body_factory", RECU_RESTART_TS, RR_NULL, RECC_STR, "^[^[:space:]]+$", RECA_NULL}
+  ,
+  //# 0 - never suppress generated responses
+  //# 1 - always suppress generated responses
+  //# 2 - suppress responses for intercepted traffic
+  {RECT_CONFIG, "proxy.config.body_factory.response_suppression_mode", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# SOCKS Processor
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.socks.socks_needed", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.socks_version", RECD_INT, "4", RECU_RESTART_TS, RR_NULL, RECC_INT, "[4-5]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.socks_config_file", RECD_STRING, "socks.config", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.socks_timeout", RECD_INT, "100", RECU_RESTART_TS, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.server_connect_timeout", RECD_INT, "10", RECU_RESTART_TS, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.per_server_connection_attempts", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.connection_attempts", RECD_INT, "4", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.server_retry_timeout", RECD_INT, "300", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.default_servers", RECD_STRING, "", RECU_RESTART_TS, RR_NULL, RECC_STR, "^([^[:space:]]+:[0-9]+;?)*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.server_retry_time", RECD_INT, "300", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.server_fail_threshold", RECD_INT, "2", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.accept_enabled", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.accept_port", RECD_INT, "1080", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.socks.http_port", RECD_INT, "80", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# I/O Subsystem
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.io.max_buffer_size", RECD_INT, "32768", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Net Subsystem
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.net.connections_throttle", RECD_INT, "30000", RECU_RESTART_TS, RR_REQUIRED, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.listen_backlog", RECD_INT, "1024", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // This option takes different defaults depending on features / platform. TODO: This should use the
+  // autoconf stuff probably ?
+  {RECT_CONFIG, "proxy.config.net.defer_accept", RECD_INT,
+#ifdef TCP_DEFER_ACCEPT
+   "45",
+#else
+   "1",
+#endif
+   RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_recv_buffer_size_in", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_send_buffer_size_in", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_option_flag_in", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_packet_mark_in", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_packet_tos_in", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_recv_buffer_size_out", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_send_buffer_size_out", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_option_flag_out", RECD_INT, "0x1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_packet_mark_out", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_packet_tos_out", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.sock_mss_in", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.poll_timeout", RECD_INT, "10", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.net.default_inactivity_timeout", RECD_INT, "86400", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# Cluster Subsystem
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.cluster.threads", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-512]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.cluster_port", RECD_INT, "8086", RECU_RESTART_TS, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.cluster_configuration", RECD_STRING, "cluster.config", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.ethernet_interface", RECD_STRING, TS_BUILD_DEFAULT_LOOPBACK_IFACE, RECU_RESTART_TS, RR_REQUIRED, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.enable_monitor", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.monitor_interval_secs", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.send_buffer_size", RECD_INT, "10485760", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.receive_buffer_size", RECD_INT, "10485760", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.sock_option_flag", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.sock_packet_mark", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.sock_packet_tos", RECD_INT, "0x0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.rpc_cache_cluster", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##################################################################
+  //# Cluster interconnect load monitoring configuration options.
+  //# Internal use only
+  //##################################################################
+  //# load monitor_enabled: -1 = compute only, 0 = disable, 1 = compute and act
+  {RECT_CONFIG, "proxy.config.cluster.load_monitor_enabled", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.ping_send_interval_msecs", RECD_INT, "100", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.ping_response_buckets", RECD_INT, "100", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.msecs_per_ping_response_bucket", RECD_INT, "50", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.ping_latency_threshold_msecs", RECD_INT, "500", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.load_compute_interval_msecs", RECD_INT, "5000", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.periodic_timer_interval_msecs", RECD_INT, "100", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.ping_history_buf_length", RECD_INT, "120", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.cluster_load_clear_duration", RECD_INT, "24", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cluster.cluster_load_exceed_duration", RECD_INT, "4", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //##############################################################################
+  //#
+  //# Hit Evacuation
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.cache.hit_evacuate_percent", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.hit_evacuate_size_limit", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //##############################################################################
+  //#
+  //# Cache
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.cache.storage_filename", RECD_STRING, "storage.config", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.control.filename", RECD_STRING, "cache.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.ip_allow.filename", RECD_STRING, "ip_allow.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.hosting_filename", RECD_STRING, "hosting.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.volume_filename", RECD_STRING, "volume.config", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.permit.pinning", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.vary_on_user_agent", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //  # default the ram cache size to AUTO_SIZE (-1)
+  //  # alternatively: 20971520 (20MB)
+  {RECT_CONFIG, "proxy.config.cache.ram_cache.size", RECD_INT, "-1", RECU_RESTART_TS, RR_NULL, RECC_STR, "^-?[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.ram_cache.algorithm", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.ram_cache.use_seen_filter", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.ram_cache.compress", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-3]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.ram_cache.compress_percent", RECD_INT, "90", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //  # how often should the directory be synced (seconds)
+  {RECT_CONFIG, "proxy.config.cache.dir.sync_frequency", RECD_INT, "60", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.hostdb.disable_reverse_lookup", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.select_alternate", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.ram_cache_cutoff", RECD_INT, "4194304", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //  # The maximum number of alternates that are allowed for any given URL.
+  //  # It is not possible to strictly enforce this if the variable
+  //  #   'proxy.config.cache.vary_on_user_agent' is set to 1.
+  //  # (0 disables the maximum number of alts check)
+  {RECT_CONFIG, "proxy.config.cache.limits.http.max_alts", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.force_sector_size", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.target_fragment_size", RECD_INT, "1048576", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // # only be used when compiled with --enable-interim-cache
+  {RECT_LOCAL, "proxy.config.cache.interim.storage", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // # only be used when compiled with --enable-interim-cache
+  {RECT_CONFIG, "proxy.config.cache.interim.migrate_threshold", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //  # The maximum size of a document that will be stored in the cache.
+  //  # (0 disables the maximum document size check)
+  {RECT_CONFIG, "proxy.config.cache.max_doc_size", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.min_average_object_size", RECD_INT, "8000", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.threads_per_disk", RECD_INT, "8", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.agg_write_backlog", RECD_INT, "5242880", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.enable_checksum", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.alt_rewrite_max_size", RECD_INT, "4096", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.enable_read_while_writer", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.cache.mutex_retry_delay", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# DNS
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.dns.lookup_timeout", RECD_INT, "20", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.retries", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_NULL, "[0-9]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.search_default_domains", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.failover_number", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.failover_period", RECD_INT, "60", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.max_dns_in_flight", RECD_INT, "2048", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.validate_query_name", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.splitDNS.enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.splitdns.filename", RECD_STRING, "splitdns.config", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.url_expansions", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.nameservers", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.local_ipv6", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.local_ipv4", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.resolv_conf", RECD_STRING, "/etc/resolv.conf", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.round_robin_nameservers", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.dns.dedicated_thread", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.ip_resolve", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# HostDB
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.hostdb", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL}
+  ,
+  //       # up to 511 characters, may not be changed while running
+  {RECT_CONFIG, "proxy.config.hostdb.filename", RECD_STRING, "host.db", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # in entries, may not be changed while running
+  {RECT_CONFIG, "proxy.config.hostdb.size", RECD_INT, "120000", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.storage_path", RECD_STRING, TS_BUILD_CACHEDIR, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.storage_size", RECD_INT, "33554432", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # in minutes (all three)
+  //       #  0 = obey, 1 = ignore, 2 = min(X,ttl), 3 = max(X,ttl)
+  {RECT_CONFIG, "proxy.config.hostdb.ttl_mode", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, "[0-3]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.lookup_timeout", RECD_INT, "120", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.timeout", RECD_INT, "1440", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.verify_after", RECD_INT, "720", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.fail.timeout", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.re_dns_on_reload", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.serve_stale_for", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # move entries to the owner on a lookup?
+  {RECT_CONFIG, "proxy.config.hostdb.migrate_on_demand", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # find DNS results on another node in the cluster?
+  {RECT_CONFIG, "proxy.config.hostdb.cluster", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # find DNS results for round-robin hosts on another node in the cluster?
+  {RECT_CONFIG, "proxy.config.hostdb.cluster.round_robin", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # round-robin addresses for single clients
+  //       # (can cause authentication problems)
+  {RECT_CONFIG, "proxy.config.hostdb.strict_round_robin", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.hostdb.timed_round_robin", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //       # how often should the hostdb be synced (seconds)
+  {RECT_CONFIG, "proxy.config.cache.hostdb.sync_frequency", RECD_INT, "120", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##########################################################################
+  //#
+  //# HTTP
+  //#
+  //##########################################################################
+  //##########################################################################
+  //        ###########
+  //        # CONNECT #
+  //        ###########
+  {RECT_CONFIG, "proxy.config.http.connect_ports", RECD_STRING, "443", RECU_DYNAMIC, RR_NULL, RECC_STR, "^(\\*|[[:digit:][:space:]]+)$", RECA_NULL}
+  ,
+  //        ##########################
+  //        # Various update periods #
+  //        ##########################
+  // Periods of update threads
+  {RECT_CONFIG, "proxy.config.config_update_interval_ms", RECD_INT, "3000", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.raw_stat_sync_interval_ms", RECD_INT, "5000", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.remote_sync_interval_ms", RECD_INT, "5000", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //        #########
+  //        # Stats #
+  //        #########
+  //# frequency is in seconds
+  {RECT_CONFIG, "proxy.config.stats.snap_frequency", RECD_INT, "60", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.stats.config_file", RECD_STRING, "stats.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // Jira TS-21
+  {RECT_CONFIG, "proxy.config.stats.snap_file", RECD_STRING, "stats.snap", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //        ###########
+  //        # Parsing #
+  //        ###########
+  //##############################################################################
+  //#
+  //# New Logging Config
+  //#
+  //##############################################################################
+  //# possible values for logging_enabled
+  //# 0: no logging at all
+  //# 1: log errors only
+  //# 2: full logging
+  {RECT_CONFIG, "proxy.config.log.logging_enabled", RECD_INT, "3", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-4]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.log_buffer_size", RECD_INT, "9216", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.max_secs_per_buffer", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.max_space_mb_for_logs", RECD_INT, "25000", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.max_space_mb_for_orphan_logs", RECD_INT, "25", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.max_space_mb_headroom", RECD_INT, "1000", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.hostname", RECD_STRING, "localhost", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.logfile_dir", RECD_STRING, TS_BUILD_LOGDIR, RECU_DYNAMIC, RR_NULL, RECC_STR, "^[^[:space:]]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.logfile_perm", RECD_STRING, "rw-r--r--", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.custom_logs_enabled", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.xml_config_file", RECD_STRING, "logs_xml.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.hosts_config_file", RECD_STRING, "log_hosts.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.squid_log_enabled", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.squid_log_is_ascii", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.squid_log_name", RECD_STRING, "squid", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.squid_log_header", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.common_log_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.common_log_is_ascii", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.common_log_name", RECD_STRING, "common", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.common_log_header", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended_log_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended_log_is_ascii", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended_log_name", RECD_STRING, "extended", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended_log_header", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended2_log_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended2_log_is_ascii", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended2_log_name", RECD_STRING, "extended2", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.extended2_log_header", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.separate_icp_logs", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.separate_host_logs", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_host", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_port", RECD_INT, "8085", RECU_DYNAMIC, RR_REQUIRED, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_secret", RECD_STRING, "foobar", RECU_DYNAMIC, RR_NULL, RECC_STR, ".*", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_host_tagged", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_retry_sec", RECD_INT, "5", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_max_send_buffers", RECD_INT, "16", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.collation_preproc_threads", RECD_INT, "1", RECU_DYNAMIC, RR_REQUIRED, RECC_INT, "[1-128]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.rolling_enabled", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-4]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.rolling_interval_sec", RECD_INT, "86400", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.rolling_offset_hr", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.rolling_size_mb", RECD_INT, "10", RECU_DYNAMIC, RR_NULL, RECC_STR, "^0*[1-9][0-9]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.auto_delete_rolled_files", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.sampling_frequency", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.space_used_frequency", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.file_stat_frequency", RECD_INT, "32", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.ascii_buffer_size", RECD_INT, "36864", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.max_line_size", RECD_INT, "9216", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // Begin  HCL Modifications.
+  {RECT_CONFIG, "proxy.config.log.search_rolling_interval_sec", RECD_INT, "86400", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.search_log_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.search_server_ip_addr", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.search_server_port", RECD_INT, "8080", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.search_top_sites", RECD_INT, "100", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.search_url_filter", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.log.search_log_filters", RECD_STRING, NULL, RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  // End    HCL Modifications.
+
+  //##############################################################################
+  //#
+  //# Reverse Proxy
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.reverse_proxy.enabled", RECD_INT, "1", RECU_DYNAMIC, RR_REQUIRED, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.url_remap.default_to_server_pac", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.url_remap.default_to_server_pac_port", RECD_INT, "-1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.url_remap.filename", RECD_STRING, "remap.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.url_remap.remap_required", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.url_remap.pristine_host_hdr", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  // url remap mode
+  // # 0 - same as URL_REMAP_ALL (instead of disabling all remapping)
+  // # 1 - URL_REMAP_ALL remap url's of all requests
+  // # 2 - URL_REMAP_FOR_OS remap url's for requests to OS's only
+  {RECT_CONFIG, "proxy.config.url_remap.url_remap_mode", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.url_remap.handle_backdoor_urls", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# SSL Termination
+  //#
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.ssl.enabled", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.SSLv2", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.SSLv3", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.TLSv1", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.TLSv1_1", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  // Disable this when using some versions of OpenSSL that causes crashes. See TS-2355.
+  {RECT_CONFIG, "proxy.config.ssl.TLSv1_2", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.compression", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.number.threads", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server.cipher_suite", RECD_STRING, "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:AES128-GCM-SHA256:AES256-GCM-SHA384:ECDHE-RSA-RC4-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:RC4-SHA:RC4-MD5:AES128-SHA:AES256-SHA:DES-CBC3-SHA!SRP:!DSS:!PSK:!aNULL:!eNULL:!SSLv2", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server.honor_cipher_order", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server_port", RECD_INT, "-1", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.certification_level", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server.cert.path", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server.cert_chain.filename", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server.multicert.filename", RECD_STRING, "ssl_multicert.config", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.server.private_key.path", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.CA.cert.filename", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.CA.cert.path", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.verify.server", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.cert.filename", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.cert.path", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.private_key.filename", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.private_key.path", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.CA.cert.filename", RECD_STRING, NULL, RECU_RESTART_TS, RR_NULL, RECC_STR, "^[^[:space:]]*$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.client.CA.cert.path", RECD_STRING, TS_BUILD_SYSCONFDIR, RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.session_cache", RECD_INT, "1", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.session_cache.size", RECD_INT, "20480", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.max_record_size", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.session_cache.timeout", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.hsts_max_age", RECD_INT, "-1", RECU_DYNAMIC, RR_NULL, RECC_STR, "^-?[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.hsts_include_subdomains", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.allow_client_renegotiation", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  //##############################################################################
+  //# ICP Configuration
+  //##############################################################################
+  //#       enabled=0 ICP disabled
+  //#       enabled=1 Allow receive of ICP queries
+  //#       enabled=2 Allow send/receive of ICP queries
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.icp.enabled", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_INT, "[0-2]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.stale_icp_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.icp_interface", RECD_STRING, NULL, RECU_RESTART_TS, RR_REQUIRED, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.icp_port", RECD_INT, "3130", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-65535]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.multicast_enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.query_timeout", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.icp_configuration", RECD_STRING, "icp.config", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.lookup_local", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.reply_to_unknown_peer", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.icp.default_reply_port", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.ssl.cert.load_elevated", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL}
+  ,
+
+  //############################################################################
+  //#
+  //# WCCP
+  //#
+  //############################################################################
+  {RECT_LOCAL, "proxy.config.wccp.addr", RECD_STRING, "", RECU_RESTART_TM, RR_NULL, RECC_STR, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.wccp.services", RECD_STRING, "", RECU_RESTART_TM, RR_NULL, RECC_STR, NULL, RECA_NULL }
+  ,
+
+  //##############################################################################
+  //# Scheduled Update Configuration
+  //##############################################################################
+  {RECT_CONFIG, "proxy.config.update.enabled", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.update_configuration", RECD_STRING, "update.config", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.force", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.retry_count", RECD_INT, "10", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.retry_interval", RECD_INT, "2", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.concurrent_updates", RECD_INT, "100", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.max_update_state_machines", RECD_INT, "500", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.update.memory_use_mb", RECD_INT, "50", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //# Plug-in Configuration
+  //##############################################################################
+  //# Directory in which to find plugins
+  {RECT_CONFIG, "proxy.config.plugin.plugin_dir", RECD_STRING, TS_BUILD_LIBEXECDIR, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.plugin.plugin_mgmt_dir", RECD_STRING, TS_BUILD_SYSCONFDIR "/plugins_mgmt", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.plugin.load_elevated", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL}
+  ,
+
+
+  //##############################################################################
+  //#
+  //# Local Manager Specific Records File
+  //#
+  //# <RECORD-TYPE> <NAME> <TYPE> <VALUE (till end of line)>
+  //#
+  //# *NOTE*: All NODE Records must be placed continuously!
+  //#
+  //# Add NODE       Records Here
+  //##############################################################################
+  {RECT_NODE, "proxy.node.num_processes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostname_FQ", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostname", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //#
+  //# Restart Stats
+  //#
+  {RECT_NODE, "proxy.node.restarts.manager.start_time", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.restarts.proxy.start_time", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.restarts.proxy.cache_ready_time", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.restarts.proxy.stop_time", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.restarts.proxy.restart_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //#
+  //# Manager Version Info
+  //#
+  {RECT_NODE, "proxy.node.version.manager.short", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.version.manager.long", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.version.manager.build_number", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.version.manager.build_time", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.version.manager.build_date", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.version.manager.build_machine", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.version.manager.build_person", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //#
+  //# Dash Board Stats
+  //#
+  //# Valid Per Node - Can Not Sum For Cluster Stats
+  //#
+  {RECT_NODE, "proxy.node.bandwidth_hit_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.bandwidth_hit_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostdb.hit_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostdb.hit_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.proxy_running", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache.percent_free", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_ratio_avg_10s_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_mem_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_mem_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_mem_ratio_avg_10s_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.bandwidth_hit_ratio_avg_10s_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //#
+  //# Node page 5 minute average stats
+  //# Valid Per Node - Can Not Sum For Cluster Stats
+  //#
+  {RECT_NODE, "proxy.node.bandwidth_hit_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_hit_fresh_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_hit_mem_fresh_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_hit_revalidated_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_hit_ims_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_hit_stale_served_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_miss_cold_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_miss_changed_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_miss_not_cacheable_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_miss_client_no_cache_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_miss_ims_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_read_error_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_total_hits_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_total_hits_mem_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_total_misses_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_hit_mem_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostdb.total_lookups_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostdb.total_hits_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostdb.hit_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //# Protocol Stats
+  //#
+  //# Valid Per Node - Can Not Sum For Cluster Stats
+  //#
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.hit_fresh", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.hit_revalidated", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.miss_cold", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.miss_changed", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.connect_failed", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.aborts", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.early_hangups", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.errors.other", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_counts_avg_10s.other.unclassified", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.hit_fresh", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.hit_revalidated", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_cold", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_not_cacheable", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_changed", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_client_no_cache", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.connect_failed", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.aborts", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.possible_aborts", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.pre_accept_hangups", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.early_hangups", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.empty_hangups", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.other", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.other.unclassified", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.hit_fresh_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.hit_revalidated_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_cold_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_not_cacheable_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_changed_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.miss_client_no_cache_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.connect_failed_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.aborts_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.possible_aborts_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.pre_accept_hangups_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.early_hangups_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.empty_hangups_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.errors.other_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_frac_avg_10s.other.unclassified_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.hit_fresh", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.hit_revalidated", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.miss_cold", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.miss_not_cacheable", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.miss_changed", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.miss_client_no_cache", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.connect_failed", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.aborts", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.possible_aborts", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.pre_accept_hangups", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.early_hangups", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.empty_hangups", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.errors.other", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.transaction_msec_avg_10s.other.unclassified", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //#
+  //# Can Sum For Cluster Stats
+  //#
+  //
+  //# HTTP
+  {RECT_NODE, "proxy.node.http.throughput", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.user_agent_xacts_per_second", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.user_agent_current_connections_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.user_agent_total_request_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.user_agent_total_response_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.user_agents_total_transactions_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.user_agents_total_documents_served", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.origin_server_current_connections_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.origin_server_total_request_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.origin_server_total_response_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.parent_proxy_total_request_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.parent_proxy_total_response_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.origin_server_total_transactions_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.cache_current_connections_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.http.current_parent_proxy_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Cache
+  {RECT_NODE, "proxy.node.cache.contents.num_docs", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache.bytes_total", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache.bytes_total_mb", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache.bytes_free", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache.bytes_free_mb", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache.percent_free_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_total_hits", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_total_hits_mem", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.cache_total_misses", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.current_cache_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# DNS
+  {RECT_NODE, "proxy.node.dns.lookups_per_second", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.dns.lookup_avg_time_ms", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.dns.total_dns_lookups", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# HostDB
+  {RECT_NODE, "proxy.node.hostdb.total_lookups", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.hostdb.total_hits", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Cluster
+  {RECT_NODE, "proxy.node.cluster.nodes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Overall
+  {RECT_NODE, "proxy.node.client_throughput_out", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.client_throughput_out_kbit", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.current_client_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.current_server_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.user_agent_total_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.origin_server_total_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.user_agent_total_bytes_avg_10s", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.origin_server_total_bytes_avg_10s", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.user_agent_xacts_per_second", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.user_agents_total_documents_served", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //
+  //#
+  //# Logging stats on NODE
+  //#
+  {RECT_NODE, "proxy.node.log.event_log_error_ok", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_error_skip", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_error_aggr", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_error_full", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_error_fail", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_access_ok", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_access_skip", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_access_aggr", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_access_full", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.event_log_access_fail", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.num_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.num_lost_before_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.num_received_from_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.num_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.num_lost_before_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_lost_before_preproc", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_lost_before_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_sent_to_network_avg_10s", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_received_from_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_received_from_network_avg_10s", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_lost_before_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_written_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_NODE, "proxy.node.log.bytes_lost_before_written_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //#
+  //# Add CLUSTER    Records Here
+  //#
+  //# For Node page
+  {RECT_CLUSTER, "proxy.cluster.user_agent_total_bytes_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.origin_server_total_bytes_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.bandwidth_hit_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.bandwidth_hit_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.bandwidth_hit_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# HTTP
+  {RECT_CLUSTER, "proxy.cluster.http.throughput", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.user_agent_xacts_per_second", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.user_agent_current_connections_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.user_agent_total_request_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.user_agent_total_response_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.user_agents_total_transactions_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.user_agents_total_documents_served", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.origin_server_current_connections_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.origin_server_total_request_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.origin_server_total_response_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.origin_server_total_transactions_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.cache_current_connections_count", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.current_parent_proxy_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.parent_proxy_total_request_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.http.parent_proxy_total_response_bytes", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Cache
+  {RECT_CLUSTER, "proxy.cluster.cache.contents.num_docs", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache.bytes_free", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache.bytes_free_mb", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache.percent_free", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache.percent_free_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_hit_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_hit_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_hit_mem_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_hit_mem_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_total_hits", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_total_hits_mem", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_total_misses", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.current_cache_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_total_hits_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_total_hits_mem_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_total_misses_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_hit_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.cache_hit_mem_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# DNS
+  {RECT_CLUSTER, "proxy.cluster.dns.lookups_per_second", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.dns.total_dns_lookups", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# HostDB
+  {RECT_CLUSTER, "proxy.cluster.hostdb.hit_ratio", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.hostdb.hit_ratio_int_pct", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.hostdb.total_lookups_avg_10s", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.hostdb.total_hits_avg_10s", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.hostdb.hit_ratio_avg_10s", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Overall
+  {RECT_CLUSTER, "proxy.cluster.user_agent_xacts_per_second", RECD_FLOAT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.client_throughput_out", RECD_FLOAT, "0.0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.client_throughput_out_kbit", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.current_client_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.current_server_connections", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //
+  //#
+  //# Logging stats on CLUSTER
+  //#
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_error_ok", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_error_skip", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_error_aggr", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_error_full", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_error_fail", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_access_ok", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_access_skip", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_access_aggr", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_access_full", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.event_log_access_fail", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.num_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.num_lost_before_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.num_received_from_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.num_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.num_lost_before_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_lost_before_preproc", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_lost_before_sent_to_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_sent_to_network_avg_10s", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_received_from_network", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_received_from_network_avg_10s", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_lost_before_flush_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_written_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CLUSTER, "proxy.cluster.log.bytes_lost_before_written_to_disk", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //#
+  //# SSL parent proxying info
+  //#
+  //# Set the value of this variable to 1 if this node
+  //#  is also the default parent for all ssl requests
+  //#  in a cluster. Setting the value to 1 will prevent
+  //#  SSL requests from this proxy to a parent from
+  //#  self-looping.
+  //#
+  {RECT_LOCAL, "proxy.local.http.parent_proxy.disable_connect_tunneling", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //############
+  //#
+  //# SPDY global configuration.
+  //#
+  //############
+  {RECT_CONFIG, "proxy.config.spdy.max_concurrent_streams_in", RECD_INT, "100", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.spdy.no_activity_timeout_in", RECD_INT, "115", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.spdy.initial_window_size_in", RECD_INT, "65536", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.spdy.accept_no_activity_timeout", RECD_INT, "120", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
+  ,
+
+  //# Add LOCAL Records Here
+  {RECT_LOCAL, "proxy.local.incoming_ip_to_bind", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_LOCAL, "proxy.local.outgoing_ip_to_bind", RECD_STRING, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_LOCAL, "proxy.local.log.collation_mode", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_INT, "[0-4]", RECA_NULL}
+  ,
+
+  //#Prefetch configuration
+  {RECT_CONFIG, "proxy.config.prefetch.prefetch_enabled", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.child_port", RECD_INT, "39679", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.config_file", RECD_STRING, "prefetch.config", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.url_buffer_size", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.url_buffer_timeout", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.keepalive_timeout", RECD_INT, "900", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.push_cached_objects", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.default_url_proto", RECD_STRING, "tcp", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.default_data_proto", RECD_STRING, "tcp", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.max_object_size", RECD_INT, "1000000000", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.max_recursion", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.prefetch.redirection", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  //# Librecords based stats system (new as of v2.1.3)
+  {RECT_CONFIG, "proxy.config.stat_api.max_stats_allowed", RECD_INT, "256", RECU_RESTART_TS, RR_NULL, RECC_INT, "[256-1000]", RECA_NULL}
+  ,
+
+  //############
+  //#
+  //# Using for Reclaimable InkFreeList memory pool
+  //#
+  //############
+  {RECT_CONFIG, "proxy.config.allocator.enable_reclaim", RECD_INT, "1", RECU_NULL, RR_NULL, RECC_NULL, "[0-1]", RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.allocator.max_overage", RECD_INT, "3", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.allocator.reclaim_factor", RECD_FLOAT, "0.3", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+  {RECT_CONFIG, "proxy.config.allocator.debug_filter", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, "[0-3]", RECA_NULL}
+  ,
+
+  //############
+  //#
+  //# Per-thread freelist / allocator controls
+  //#
+  //############
+  {RECT_CONFIG, "proxy.config.allocator.thread_freelist_size", RECD_INT, "512", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //############
+  //#
+  //# Eric's super cool remap processor
+  //#
+  //############
+  {RECT_CONFIG, "proxy.config.remap.num_remap_threads", RECD_INT, "0", RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+  ,
+
+  //##############################################################################
+  //#
+  //# The End
+  //#
+  //##############################################################################
+  {RECT_CONFIG, NULL, RECD_NULL, NULL, RECU_NULL, RR_NULL, RECC_NULL, NULL, RECA_NULL}
+};
+
+//-------------------------------------------------------------------------
+// RecordsConfigOverrideFromEnvironment
+//-------------------------------------------------------------------------
+
+// We process environment variable overrides when we parse the records.config configuration file, but the
+// operator might choose to override a variable that is not present in records.config so we have to post-
+// process the full set of configuration valriables as well.
+void
+RecordsConfigOverrideFromEnvironment()
+{
+  ink_mutex_acquire(&g_rec_config_lock);
+
+  for (const RecordElement * record = RecordsConfig; record->value_type != RECD_NULL; ++record) {
+    const char * value;
+    RecData data = {0};
+
+    if (record->type != RECT_CONFIG && record->type != RECT_LOCAL) {
+      continue;
+    }
+
+    if ((value = RecConfigOverrideFromEnvironment(record->name, NULL))) {
+      if (RecDataSetFromString(record->value_type, &data, value)) {
+          RecSetRecord(record->type, record->name, record->value_type, &data, NULL, false);
+          RecDataClear(record->value_type, &data);
+      }
+    }
+  }
+
+  ink_mutex_release(&g_rec_config_lock);
+}
+
+
+//-------------------------------------------------------------------------
+// LibRecordsConfigInit
+//-------------------------------------------------------------------------
+void
+LibRecordsConfigInit()
+{
+  int r = 0;
+  RecInt tempInt = 0;
+  RecFloat tempFloat = 0.0;
+  RecCounter tempCounter = 0;
+
+  RecUpdateT update;
+  RecCheckT check;
+  RecAccessT access;
+  RecT type;
+
+  for (r = 0; RecordsConfig[r].value_type != RECD_NULL; r++) {
+    // Less typing ...
+    type = RecordsConfig[r].type;
+    update = RecordsConfig[r].update;
+    check = RecordsConfig[r].check;
+    access = RecordsConfig[r].access;
+
+    if (type == RECT_CONFIG || type == RECT_LOCAL) {
+      switch (RecordsConfig[r].value_type) {
+      case RECD_INT:
+        tempInt = (RecInt) ink_atoi64(RecordsConfig[r].value);
+        RecRegisterConfigInt(type, RecordsConfig[r].name, tempInt, update, check, RecordsConfig[r].regex, access);
+        break;
+
+      case RECD_FLOAT:
+        tempFloat = (RecFloat) atof(RecordsConfig[r].value);
+        RecRegisterConfigFloat(type, RecordsConfig[r].name, tempFloat, update, check, RecordsConfig[r].regex, access);
+        break;
+
+      case RECD_STRING:
+        RecRegisterConfigString(type, RecordsConfig[r].name, RecordsConfig[r].value, update, check,
+                                RecordsConfig[r].regex, access);
+        break;
+
+      case RECD_COUNTER:
+        tempCounter = (RecCounter) ink_atoi64(RecordsConfig[r].value);
+        RecRegisterConfigCounter(type, RecordsConfig[r].name, tempCounter, update, check,
+                                 RecordsConfig[r].regex, access);
+        break;
+
+      default:
+        ink_assert(true);
+        break;
+
+      }                         // switch
+    } else { // Everything else, except PROCESS, are stats. TODO: Should modularize this too like PROCESS was done.
+      switch (RecordsConfig[r].value_type) {
+
+      case RECD_INT:
+        tempInt = (RecInt) ink_atoi64(RecordsConfig[r].value);
+        RecRegisterStatInt(type, RecordsConfig[r].name, tempInt, RECP_NON_PERSISTENT);
+        break;
+
+      case RECD_FLOAT:
+        tempFloat = (RecFloat) atof(RecordsConfig[r].value);
+        RecRegisterStatFloat(type, RecordsConfig[r].name, tempFloat, RECP_NON_PERSISTENT);
+        break;
+
+      case RECD_STRING:
+        RecRegisterStatString(type, RecordsConfig[r].name, (RecString)RecordsConfig[r].value, RECP_NON_PERSISTENT);
+        break;
+
+      case RECD_COUNTER:
+        tempCounter = (RecCounter) ink_atoi64(RecordsConfig[r].value);
+        RecRegisterStatCounter(type, RecordsConfig[r].name, tempCounter, RECP_NON_PERSISTENT);
+        break;
+
+      default:
+        ink_assert(true);
+        break;
+      }                         // switch
+    }
+  }
+
+  // test_librecords();
+}
+
+void
+test_librecords()
+{
+  RecRegisterStatInt(RECT_PROCESS, "proxy.process.librecords.testing.int", (RecInt) 100, RECP_NON_PERSISTENT);
+  RecRegisterStatFloat(RECT_NODE, "proxy.node.librecords.testing.float", (RecFloat) 100.1, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_CLUSTER, "proxy.cluster.librecords.testing.string", (RecString) "Hello World\n", RECP_NON_PERSISTENT);
+  RecRegisterStatCounter(RECT_LOCAL, "proxy.local.librecords.testing.counter", (RecCounter) 99, RECP_NON_PERSISTENT);
+}
+
diff --git a/mgmt/RecordsConfig.h b/mgmt/RecordsConfig.h
new file mode 100644
index 00000000..d10f56eb
--- /dev/null
+++ b/mgmt/RecordsConfig.h
@@ -0,0 +1,56 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#if !defined (_RECORDS_CONFIG_H_)
+#define _RECORDS_CONFIG_H_
+
+#include "MgmtDefs.h"
+#include "MgmtHashTable.h"
+#include "P_RecCore.h"
+
+enum RecordRequiredType {
+  RR_NULL,                      // config is _not_ required to be defined in records.config
+  RR_REQUIRED                   // config _is_ required to be defined in record.config
+};
+
+// Retain this struct for ease of CVS merging
+struct RecordElement
+{
+  RecT type;                    // type of the record (CONFIG, PROCESS, etc)
+  const char *name;             // name of the record
+  RecDataT value_type;          // type of the record value (INT, FLOAT, etc)
+  const char *value;            // default value for the record
+  RecUpdateT update;            // action necessary to change a configuration
+  RecordRequiredType required;  // is records required to be in records.config?
+  RecCheckT check;
+  const char *regex;
+  RecAccessT access;            // access level of the record
+};
+
+void LibRecordsConfigInit();                  // initializes RecordsConfigIndex
+void RecordsConfigOverrideFromEnvironment();  // Override records from the environment
+void test_librecords();
+
+#endif
diff --git a/mgmt/Rollback.cc b/mgmt/Rollback.cc
new file mode 100644
index 00000000..4489a182
--- /dev/null
+++ b/mgmt/Rollback.cc
@@ -0,0 +1,1031 @@
+/** @file
+
+  This file contains code for class to allow rollback of configuration files 
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "LocalManager.h"
+#include "Rollback.h"
+#include "WebMgmtUtils.h"
+#include "WebGlobals.h"
+#include "MgmtUtils.h"
+#include "ExpandingArray.h"
+#include "MgmtSocket.h"
+#include "ink_cap.h"
+#include "I_Layout.h"
+
+#define MAX_VERSION_DIGITS 11
+#define DEFAULT_BACKUPS 2
+
+// Error Strings
+const char *RollbackStrings[] = { "Rollback Ok",
+  "File was not found",
+  "Version was out of date",
+  "System Call Error",
+  "Invalid Version - Version Numbers Must Increase"
+};
+
+Rollback::Rollback(const char *baseFileName, bool root_access_needed_)
+  : root_access_needed(root_access_needed_)
+{
+  version_t highestSeen;        // the highest backup version
+  ExpandingArray existVer(25, true);    // Exsisting versions
+  struct stat fileInfo;
+  MgmtInt numBak;
+  char *alarmMsg;
+
+  // To Test, Read/Write access to the file
+  int testFD;                   // For open test
+  int testErrno;                // For open test
+
+  // In case the file is missing
+  char *highestSeenStr;
+  char *activeVerStr;
+  bool needZeroLength;
+
+  ink_assert(baseFileName != NULL);
+
+  // Copy the file name
+  fileNameLen = strlen(baseFileName);
+  fileName = new char[fileNameLen + 1];
+  ink_strlcpy(fileName, baseFileName, fileNameLen + 1);
+
+  // TODO: Use the runtime directory for storing mutable data
+  // XXX: Sysconfdir should be imutable!!!
+
+  if (access(Layout::get()->sysconfdir, F_OK) < 0) {
+    mgmt_elog(0, "[Rollback::Rollback] unable to access() directory '%s': %d, %s\n",
+              Layout::get()->sysconfdir, errno, strerror(errno));
+    mgmt_elog(0, "[Rollback::Rollback] please set the 'TS_ROOT' environment variable\n");
+    _exit(1);
+  }
+
+  if (varIntFromName("proxy.config.admin.number_config_bak", &numBak) == true) {
+    if (numBak > 1) {
+      numberBackups = (int) numBak;
+    } else {
+      numberBackups = 1;
+    }
+  } else {
+    numberBackups = DEFAULT_BACKUPS;
+  }
+
+  ink_mutex_init(&fileAccessLock, "RollBack Mutex");
+
+  currentVersion = 0;           // Prevent UMR with stat file
+  highestSeen = findVersions_ml(versionQ);
+
+  // Check to make sure that our configuratio file exists
+  //
+  //  If we can't find our file, do our best to rollback
+  //    or create an empty one.  If that fails, just
+  //    give up
+  //
+  if (statFile(ACTIVE_VERSION, &fileInfo) < 0) {
+
+    // If we can't find an active version because there is not
+    //   one, attempt to rollback to a previous verision if one exists
+    //
+    // If it does not, create a zero length file to prevent total havoc
+    //
+    if (errno == ENOENT) {
+      mgmt_log(stderr, "[RollBack::Rollback] Missing Configuration File: %s\n", fileName);
+
+      if (highestSeen > 0) {
+        highestSeenStr = createPathStr(highestSeen);
+        activeVerStr = createPathStr(ACTIVE_VERSION);
+
+        if (rename(highestSeenStr, activeVerStr) < 0) {
+          mgmt_log(stderr, "[RollBack::Rollback] Automatic Rollback to prior version failed for %s : %s\n",
+                   fileName, strerror(errno));
+          needZeroLength = true;
+        } else {
+          mgmt_log(stderr, "[RollBack::Rollback] Automatic Rollback to version succeded for %s\n",
+                   fileName, strerror(errno));
+          needZeroLength = false;
+          highestSeen--;
+          // Since we've made the highestVersion active
+          //  remove it from the backup verision q
+          versionQ.remove(versionQ.tail);
+        }
+        delete[]highestSeenStr;
+        delete[]activeVerStr;
+      } else {
+        needZeroLength = true;
+      }
+
+      if (needZeroLength == true) {
+        int fd = openFile(ACTIVE_VERSION, O_RDWR | O_CREAT);
+        if (fd >= 0) {
+          alarmMsg = (char *)ats_malloc(2048);
+          snprintf(alarmMsg, 2048, "Created zero length place holder for config file %s", fileName);
+          mgmt_log(stderr, "[RollBack::Rollback] %s\n", alarmMsg);
+          lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_CONFIG_UPDATE_FAILED, alarmMsg);
+          ats_free(alarmMsg);
+          closeFile(fd, true);
+        } else {
+          mgmt_fatal(stderr, 0,
+                     "[RollBack::Rollback] Unable to find configuration file %s.\n\tCreation of a placeholder failed : %s\n",
+                     fileName, strerror(errno));
+        }
+      }
+
+      currentVersion = highestSeen + 1;
+      setLastModifiedTime();
+    } else {
+      // If is there but we can not stat it, it is unusable to manager
+      //   probably due to permissions problems.  Bail!
+      mgmt_fatal(stderr, 0, "[RollBack::Rollback] Unable to find configuration file %s.\n\tStat failed : %s\n",
+                 fileName, strerror(errno));
+    }
+  } else {
+
+    fileLastModified = TS_ARCHIVE_STAT_MTIME(fileInfo);
+    currentVersion = highestSeen + 1;
+
+    // Make sure that we have a backup of the file
+    if (highestSeen == 0) {
+      textBuffer *version0 = NULL;
+      char failStr[] = "[Rollback::Rollback] Automatic Roll of Version 1 failed: %s";
+      if (getVersion_ml(ACTIVE_VERSION, &version0) != OK_ROLLBACK) {
+        mgmt_log(stderr, failStr, fileName);
+      } else {
+        if (forceUpdate_ml(version0) != OK_ROLLBACK) {
+          mgmt_log(stderr, failStr, fileName);
+        }
+      }
+      if (version0 != NULL) {
+        delete version0;
+      }
+    }
+
+    Debug("rollback", "[Rollback::Rollback] Current Version of %s is %d\n", fileName, currentVersion);
+  }
+
+  // Now that we'll got every thing set up, try opening
+  //   the file to make sure that we will actually be able to
+  //   read and write it
+  testFD = openFile(ACTIVE_VERSION, O_RDWR, &testErrno);
+  if (testFD < 0) {
+    // We failed to open read-write
+    alarmMsg = (char *)ats_malloc(2048);
+    testFD = openFile(ACTIVE_VERSION, O_RDONLY, &testErrno);
+
+    if (testFD < 0) {
+
+      // We are unable to either read or write the file
+      snprintf(alarmMsg, 2048, "Unable to read or write config file");
+      mgmt_log(stderr, "[Rollback::Rollback] %s %s: %s\n", alarmMsg, fileName, strerror(errno));
+      lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_CONFIG_UPDATE_FAILED, alarmMsg);
+
+    } else {
+      // Read is OK and write fails
+      snprintf(alarmMsg, 2048, "Config file is read-only");
+      mgmt_log(stderr, "[Rollback::Rollback] %s : %s\n", alarmMsg, fileName);
+      lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_CONFIG_UPDATE_FAILED, alarmMsg);
+      closeFile(testFD, false);
+    }
+    ats_free(alarmMsg);
+  } else {
+    closeFile(testFD, true);
+  }
+}
+
+Rollback::~Rollback()
+{
+  delete[]fileName;
+}
+
+
+ // Rollback::createPathStr(version_t version)
+//
+//   CALLEE DELETES STORAGE
+//
+char *
+Rollback::createPathStr(version_t version)
+{
+
+  char *buffer;
+  int bufSize = strlen(Layout::get()->sysconfdir) + fileNameLen + MAX_VERSION_DIGITS + 1;
+
+  buffer = new char[bufSize];
+
+  Layout::get()->relative_to(buffer, bufSize, Layout::get()->sysconfdir, fileName);
+
+  if (version != ACTIVE_VERSION) {
+    size_t pos = strlen(buffer);
+    snprintf(buffer + pos, bufSize - pos, "_%d", version);
+  }
+
+  return buffer;
+}
+
+//
+//
+// int Rollback::statFile(version_t)
+//
+//  A wrapper for stat()
+//
+int
+Rollback::statFile(version_t version, struct stat *buf)
+{
+  char *filePath;
+  int statResult;
+#if !TS_USE_POSIX_CAP
+  uid_t saved_euid = 0;
+#endif
+
+  if (version == this->currentVersion) {
+    version = ACTIVE_VERSION;
+  }
+  filePath = createPathStr(version);
+
+  if (root_access_needed) {
+    if (
+#if TS_USE_POSIX_CAP
+      elevateFileAccess(true)
+#else
+      restoreRootPriv(&saved_euid)
+#endif
+	!= true) {
+      mgmt_log(stderr, "[Rollback] Unable to acquire root privileges.\n");
+    }
+  }
+
+  statResult = stat(filePath, buf);
+
+  if (root_access_needed) {
+    if (
+#if TS_USE_POSIX_CAP
+      elevateFileAccess(false)
+#else
+      removeRootPriv(saved_euid)
+#endif
+      != true) {
+      mgmt_log(stderr, "[Rollback] Unable to restore non-root privileges.\n");
+    }
+  }
+
+  delete[]filePath;
+  return statResult;
+}
+
+//
+// int Rollback::openFile(version_t)
+//
+//  a wrapper for open()
+//
+int
+Rollback::openFile(version_t version, int oflags, int *errnoPtr)
+{
+  char *filePath;
+  int fd;
+#if !TS_USE_POSIX_CAP
+  uid_t saved_euid = 0;
+#endif
+
+  filePath = createPathStr(version);
+
+  if (root_access_needed) {
+    if (
+#if TS_USE_POSIX_CAP
+      elevateFileAccess(true)
+#else
+      restoreRootPriv(&saved_euid)
+#endif
+      != true) {
+      mgmt_log(stderr, "[Rollback] Unable to acquire root privileges.\n");
+    }
+  }
+
+  // TODO: Use the original permissions
+  //       Anyhow the _1 files should not be created inside Syconfdir.
+  //
+  fd = mgmt_open_mode(filePath, oflags, 0644);
+  if (root_access_needed) {
+    if (
+#if TS_USE_POSIX_CAP
+      elevateFileAccess(false)
+#else
+      removeRootPriv(saved_euid)
+#endif
+      != true) {
+      mgmt_log(stderr, "[Rollback] Unable to restore non-root privileges.\n");
+    }
+  }
+
+  if (fd < 0) {
+    if (errnoPtr != NULL) {
+      *errnoPtr = errno;
+    }
+    mgmt_log(stderr, "[Rollback::openFile] Open of %s failed: %s\n", fileName, strerror(errno));
+  }
+  else {
+    fcntl(fd, F_SETFD, 1);
+  }
+
+  delete[]filePath;
+
+  return fd;
+}
+
+int
+Rollback::closeFile(int fd, bool callSync)
+{
+  int result = 0;
+  if (callSync && fsync(fd) < 0) {
+    result = -1;
+    mgmt_log(stderr, "[Rollback::closeFile] fsync failed for file '%s' (%d: %s)\n", fileName, errno, strerror(errno));
+  }
+
+  if (result == 0) {
+    result = close(fd);
+  }
+  else {
+    close(fd);
+  }
+  return result;
+}
+
+
+RollBackCodes
+Rollback::updateVersion(textBuffer * buf, version_t basedOn, version_t newVersion, bool notifyChange, bool incVersion)
+{
+  RollBackCodes returnCode;
+
+  this->acquireLock();
+  returnCode = this->updateVersion_ml(buf, basedOn, newVersion, notifyChange, incVersion);
+  this->releaseLock();
+
+  return returnCode;
+}
+
+RollBackCodes
+Rollback::updateVersion_ml(textBuffer * buf, version_t basedOn, version_t newVersion, bool notifyChange, bool incVersion)
+{
+
+  RollBackCodes returnCode;
+
+  if (basedOn != currentVersion) {
+    returnCode = VERSION_NOT_CURRENT_ROLLBACK;
+  } else {
+    returnCode = internalUpdate(buf, newVersion, notifyChange, incVersion);
+  }
+
+  return returnCode;
+}
+
+
+RollBackCodes
+Rollback::forceUpdate(textBuffer * buf, version_t newVersion)
+{
+
+  RollBackCodes r;
+
+  ink_mutex_acquire(&fileAccessLock);
+  r = this->forceUpdate_ml(buf, newVersion);
+  ink_mutex_release(&fileAccessLock);
+
+  return r;
+}
+
+RollBackCodes
+Rollback::forceUpdate_ml(textBuffer * buf, version_t newVersion)
+{
+  return this->internalUpdate(buf, newVersion);
+}
+
+// Rollback::internalUpdate()
+//
+//  Creates a version from buf.  Callee must be holding the lock
+//
+RollBackCodes
+Rollback::internalUpdate(textBuffer * buf, version_t newVersion, bool notifyChange, bool incVersion)
+{
+  RollBackCodes returnCode;
+  char *activeVersion;
+  char *currentVersion_local;
+  char *nextVersion;
+  int writeBytes;
+  int diskFD;
+  int ret;
+  versionInfo *toRemove;
+  versionInfo *newBak;
+  bool failedLink = false;
+  char *alarmMsg = NULL;
+
+
+  // Check to see if the callee has specified a newVersion number
+  //   If the newVersion argument is less than zero, the callee
+  //   is telling us to use the next version in squence
+  if (newVersion < 0) {
+    newVersion = this->currentVersion + 1;
+    if (incVersion) {
+      incVersion = false;  //because the version already increment
+    }
+  } else {
+    // We need to make sure that the specified version is valid
+    //  We can NOT go back in time to a smaller version number
+    //  than the one we have now
+    if (newVersion <= this->currentVersion) {
+      return INVALID_VERSION_ROLLBACK;
+    }
+  }
+
+  Debug("rollback",
+        "[Rollback::internalUpdate] Moving %s from version %d to version %d\n",
+        this->fileName, this->currentVersion, newVersion);
+
+  currentVersion_local = createPathStr(this->currentVersion);
+  activeVersion = createPathStr(ACTIVE_VERSION);
+  nextVersion = createPathStr(newVersion);
+
+  // Create the new configuration file
+  // TODO: Make sure they are not created in Sysconfigdir!
+  diskFD = openFile(newVersion, O_WRONLY | O_CREAT | O_TRUNC);
+
+  if (diskFD < 0) {
+    // Could not create the new file.  The operation is aborted
+    mgmt_log(stderr, "[Rollback::internalUpdate] Unable to create new version of %s : %s\n", fileName, strerror(errno));
+    returnCode = SYS_CALL_ERROR_ROLLBACK;
+    goto UPDATE_CLEANUP;
+  }
+  // Write the buffer into the new configuration file
+  writeBytes = write(diskFD, buf->bufPtr(), buf->spaceUsed());
+  ret = closeFile(diskFD, true);
+  if ((ret < 0) || (writeBytes != buf->spaceUsed())) {
+    mgmt_log(stderr, "[Rollback::internalUpdate] Unable to write new version of %s : %s\n", fileName, strerror(errno));
+    returnCode = SYS_CALL_ERROR_ROLLBACK;
+    goto UPDATE_CLEANUP;
+  }
+
+  // Now that we got a the new version on the disk lets do some renaming
+  if (link(activeVersion, currentVersion_local) < 0) {
+    mgmt_log(stderr, "[Rollback::internalUpdate] Link failed : %s\n", strerror(errno));
+
+    // If the file was lost, it is lost and log the error and
+    //    install a new file so that we do not go around in
+    //    an endless loop
+    if (errno == ENOENT) {
+      mgmt_log(stderr,
+               "[Rollback::internalUpdate] The active version of %s was lost.\n\tThe updated copy was installed.\n",
+               fileName);
+      failedLink = true;
+    } else {
+      returnCode = SYS_CALL_ERROR_ROLLBACK;
+      goto UPDATE_CLEANUP;
+    }
+  }
+
+  if (rename(nextVersion, activeVersion) < 0) {
+    mgmt_log(stderr, "[Rollback::internalUpdate] Rename failed : %s\n", strerror(errno));
+    mgmt_log(stderr, "[Rollback::internalUpdate] Unable to create new version of %s.  Using prior version\n", fileName);
+
+    returnCode = SYS_CALL_ERROR_ROLLBACK;
+    goto UPDATE_CLEANUP;
+  }
+
+  setLastModifiedTime();
+  // Check to see if we need to delete an excess backup versions
+  //
+  //  We subtract one from numVersions to exclude the active
+  //   copy we just created.  If we subtracted two, but left
+  //   the toRemove calculation the same, version one would
+  //   never get deleted
+  //
+  if (numVersions >= this->numberBackups && failedLink == false) {
+    toRemove = versionQ.head;
+    ink_assert(toRemove != NULL);
+    ink_assert((toRemove->version) < this->currentVersion);
+    if (toRemove != NULL) {
+      removeVersion_ml(toRemove->version);
+    }
+  }
+  // If we created a backup version add it to the
+  //  List of backup Versions
+  if (failedLink == false) {
+    newBak = new versionInfo;
+    newBak->version = this->currentVersion;
+    newBak->modTime = 0;
+    versionQ.enqueue(newBak);
+  }
+  // Update instance varibles
+  this->numVersions++;
+  this->currentVersion = newVersion;
+
+
+  returnCode = OK_ROLLBACK;
+
+  // Post the change to the config file manager
+  if (notifyChange) {
+    configFiles->fileChanged(fileName, incVersion);
+  }
+
+UPDATE_CLEANUP:
+
+  // Signal an alarm if we failed since if we are unable
+  //   to manipulate the disk, the error might not get
+  //   written to disk
+  if (returnCode != OK_ROLLBACK) {
+    alarmMsg = (char *)ats_malloc(1024);
+    snprintf(alarmMsg, 1024, "[TrafficManager] Configuration File Update Failed: %s", strerror(errno));
+    lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_CONFIG_UPDATE_FAILED, alarmMsg);
+    ats_free(alarmMsg);
+
+    // Remove both the link from currentVersion_local
+    // to the active version and the new version
+    //  that they will not screw up our version id on restart
+    unlink(currentVersion_local);
+    unlink(nextVersion);
+  }
+
+  delete[]currentVersion_local;
+  delete[]activeVersion;
+  delete[]nextVersion;
+  return returnCode;
+}
+
+
+
+RollBackCodes
+Rollback::getVersion(version_t version, textBuffer ** buffer)
+{
+
+  RollBackCodes r;
+
+  this->acquireLock();
+  r = getVersion_ml(version, buffer);
+  this->releaseLock();
+
+  return r;
+}
+
+// CALLEE DELETES STORAGE
+RollBackCodes
+Rollback::getVersion_ml(version_t version, textBuffer ** buffer)
+{
+
+  int diskFD;                   // file descriptor for version of the file we are fetching
+  RollBackCodes returnCode;     // our eventual return value
+  struct stat fileInfo;         // Info from fstat
+  int readResult;               // return val of (indirect) read calls
+  textBuffer *newBuffer;        // return buffer
+
+  *buffer = NULL;
+
+  if (version == currentVersion) {
+    version = ACTIVE_VERSION;
+  }
+  diskFD = openFile(version, O_RDONLY);
+
+  if (diskFD < 0) {
+    returnCode = FILE_NOT_FOUND_ROLLBACK;
+    goto GET_CLEANUP;
+  }
+  // fstat the file so that we know what size is supposed to be
+  if (fstat(diskFD, &fileInfo) < 0) {
+    mgmt_log(stderr, "[Rollback::getVersion] fstat on %s version %d failed: %s\n", fileName, version, strerror(errno));
+    returnCode = FILE_NOT_FOUND_ROLLBACK;
+    goto GET_CLEANUP;
+  }
+  // Create a textbuffer of the
+  newBuffer = new textBuffer(fileInfo.st_size + 1);
+
+  do {
+
+    readResult = newBuffer->readFromFD(diskFD);
+
+    if (readResult < 0) {
+      mgmt_log(stderr, "[Rollback::getVersion] read failed on %s version %d: %s\n", fileName, version, strerror(errno));
+      returnCode = SYS_CALL_ERROR_ROLLBACK;
+      delete newBuffer;
+      goto GET_CLEANUP;
+    }
+  } while (readResult > 0);
+
+  if (newBuffer->spaceUsed() != fileInfo.st_size) {
+    mgmt_log(stderr,
+             "[Rollback::getVersion] Incorrect amount of data retrieved from %s version %d.  Expected: %d   Got: %d\n",
+             fileName, version, fileInfo.st_size, newBuffer->spaceUsed());
+    returnCode = SYS_CALL_ERROR_ROLLBACK;
+    delete newBuffer;
+    goto GET_CLEANUP;
+  }
+
+  *buffer = newBuffer;
+
+  returnCode = OK_ROLLBACK;
+
+GET_CLEANUP:
+
+  if (diskFD >= 0) {
+    closeFile(diskFD, false);
+  }
+
+  return returnCode;
+}
+
+RollBackCodes
+Rollback::revertToVersion(version_t version)
+{
+
+  RollBackCodes r;
+
+  ink_mutex_acquire(&fileAccessLock);
+  r = this->revertToVersion_ml(version);
+  ink_mutex_release(&fileAccessLock);
+
+  return r;
+}
+
+// Rollback::revertToVersion_ml(version_t version)
+//
+//  assumes callee is holding this->fileAccessLock
+//
+//  moves the current version to fileName_currentVersion
+//  copies fileName_revertToVersion fileName
+//  increases this->currentVersion, this->numVersion
+//
+RollBackCodes
+Rollback::revertToVersion_ml(version_t version)
+{
+
+  RollBackCodes returnCode;
+  textBuffer *revertTo;
+
+  returnCode = this->getVersion_ml(version, &revertTo);
+  if (returnCode != OK_ROLLBACK) {
+    mgmt_log(stderr, "[Rollback::revertToVersion] Unable to open version %d of %s\n", version, fileName);
+    return returnCode;
+  }
+
+  returnCode = forceUpdate_ml(revertTo);
+  if (returnCode != OK_ROLLBACK) {
+    mgmt_log(stderr, "[Rollback::revertToVersion] Unable to revert to version %d of %s\n", version, fileName);
+  }
+
+  delete revertTo;
+  return OK_ROLLBACK;
+}
+
+version_t
+Rollback::findVersions(ExpandingArray * listNames)
+{
+
+  version_t result;
+
+  ink_mutex_acquire(&fileAccessLock);
+  result = this->findVersions_ml(listNames);
+  ink_mutex_release(&fileAccessLock);
+
+  return result;
+}
+
+// Rollback::findVersions_ml()
+//
+// scans the configuration directory and returns the high
+//   version number encountered.  If no versions of the
+//   file were found, zero is returned
+//
+version_t
+Rollback::findVersions_ml(ExpandingArray * listNames)
+{
+
+  int count = 0;
+  version_t highestSeen = 0, version = 0;
+
+  DIR *dir;
+  struct dirent *dirEntrySpace;
+  struct dirent *entryPtr;
+
+  dir = opendir(Layout::get()->sysconfdir);
+
+  if (dir == NULL) {
+    mgmt_log(stderr, "[Rollback::findVersions] Unable to open configuration directory: %s: %s\n",
+             Layout::get()->sysconfdir, strerror(errno));
+    return INVALID_VERSION;
+  }
+  // The fun of Solaris - readdir_r requires a buffer passed into it
+  //   The man page says this obscene expression gives us the proper
+  //     size
+  dirEntrySpace = (struct dirent *)ats_malloc(sizeof(struct dirent) + pathconf(".", _PC_NAME_MAX) + 1);
+
+  while (readdir_r(dir, dirEntrySpace, &entryPtr) == 0) {
+    if (!entryPtr)
+      break;
+
+    if ((version = extractVersionInfo(listNames, entryPtr->d_name))
+        != INVALID_VERSION) {
+      count++;
+
+      if (version > highestSeen) {
+        highestSeen = version;
+      }
+
+    }
+
+  }
+
+  ats_free(dirEntrySpace);
+  closedir(dir);
+
+  numVersions = count;
+  return highestSeen;
+}
+
+// version_t Rollback::extractVersionInfo(ExpandingArray* listNames,
+//                                        const char* testFileName)
+//
+//   Extracts the version number out of testFileName if it matches
+//     with the fileName_version format; adds the fileInfo to
+//     listNames if there is a match; returns INVALID_VERSION
+//     if there is no match.
+//
+version_t
+Rollback::extractVersionInfo(ExpandingArray * listNames, const char *testFileName)
+{
+  const char *currentVersionStr, *str;
+  version_t version = INVALID_VERSION;
+
+  // Check to see if the current entry is a rollback file
+  //   fileFormat: fileName_version
+  //
+  // Check to see if the prefix of the current entry
+  //  is the same as our fileName
+  if (strlen(testFileName) > fileNameLen) {
+    if (strncmp(testFileName, fileName, fileNameLen) == 0) {
+
+      // Check for the underscore
+      if (*(testFileName + fileNameLen) == '_') {
+        // Check for the integer version number
+        currentVersionStr = str = testFileName + fileNameLen + 1;
+
+        for (; isdigit(*str) && *str != '\0'; str++);
+
+        // Do not tolerate anything but numbers on the end
+        //   of the file
+        if (*str == '\0') {
+
+          version = atoi(currentVersionStr);
+
+          // Add info about version number and modTime
+          if (listNames != NULL) {
+            struct stat fileInfo;
+            versionInfo *verInfo;
+
+            if (statFile(version, &fileInfo) >= 0) {
+              verInfo = (versionInfo *)ats_malloc(sizeof(versionInfo));
+              verInfo->version = version;
+              verInfo->modTime = fileInfo.st_mtime;
+              listNames->addEntry((void *) verInfo);
+            }
+          }
+        }
+      }
+    }
+  }
+
+  return version;
+}
+
+// version_t Rollback::findVersions_ml(Queue<versionInfo>& q)
+//
+//   Add wrapper to
+//     version_t Rollback::findVersions_ml(ExpandingArray* listNames)
+//
+//   Puts the data in a queue rather than an ExpaningArray
+//
+version_t
+Rollback::findVersions_ml(Queue<versionInfo> &q)
+{
+  ExpandingArray versions(25, true);
+  int num;
+  versionInfo *foundVer;
+  versionInfo *addInfo;
+  version_t highest;
+
+  // Get the version info and sort it
+  highest = this->findVersions_ml(&versions);
+  num = versions.getNumEntries();
+  versions.sortWithFunction(versionCmp);
+
+  // Add the entries on to our passed in q
+  for (int i = 0; i < num; i++) {
+    foundVer = (versionInfo *) versions[i];
+    //  We need to create our own copy so that
+    //   constructor gets run
+    addInfo = new versionInfo;
+    addInfo->version = foundVer->version;
+    addInfo->modTime = foundVer->modTime;
+    q.enqueue(addInfo);
+  }
+
+  return highest;
+}
+
+
+RollBackCodes
+Rollback::removeVersion(version_t version)
+{
+  RollBackCodes r;
+
+  ink_mutex_acquire(&fileAccessLock);
+  r = this->removeVersion_ml(version);
+  ink_mutex_release(&fileAccessLock);
+
+  return r;
+}
+
+RollBackCodes
+Rollback::removeVersion_ml(version_t version)
+{
+
+  struct stat statInfo;
+  char *versionPath;
+  versionInfo *removeInfo = NULL;
+  bool infoFound = false;
+
+  if (this->statFile(version, &statInfo) < 0) {
+    mgmt_log(stderr, "[Rollback::removeVersion] Stat failed on %s version %d\n", fileName, version);
+    return FILE_NOT_FOUND_ROLLBACK;
+  }
+
+  versionPath = createPathStr(version);
+  if (unlink(versionPath) < 0) {
+    delete[]versionPath;
+    mgmt_log(stderr, "[Rollback::removeVersion] Unlink failed on %s version %d: %s\n",
+             fileName, version, strerror(errno));
+    return SYS_CALL_ERROR_ROLLBACK;
+  }
+  // Take the version we just removed off of the backup queue
+  //   We are doing a linear search but since we almost always
+  //    are deleting the oldest version, the head of the queue
+  //    should be what we are looking for
+  for (removeInfo = versionQ.head; removeInfo != NULL; removeInfo = removeInfo->link.next) {
+    if (removeInfo->version == version) {
+      infoFound = true;
+      break;
+    }
+  }
+  if (infoFound == true) {
+    versionQ.remove(removeInfo);
+    delete removeInfo;
+  } else {
+    mgmt_log(stderr, "[Rollback::removeVersion] Unable to find info about %s version %d\n", fileName, version);
+  }
+
+  numVersions--;
+
+  delete[]versionPath;
+  return OK_ROLLBACK;
+}
+
+time_t
+Rollback::versionTimeStamp(version_t version)
+{
+  time_t t;
+
+  ink_mutex_acquire(&fileAccessLock);
+  t = versionTimeStamp_ml(version);
+  ink_mutex_release(&fileAccessLock);
+
+  return t;
+}
+
+time_t
+Rollback::versionTimeStamp_ml(version_t version)
+{
+
+  struct stat buf;
+
+  if (this->statFile(version, &buf) < 0) {
+    return -1;
+  } else {
+    return buf.st_mtime;
+  }
+}
+
+int
+Rollback::statVersion(version_t version, struct stat *buf)
+{
+  int r;
+
+  ink_mutex_acquire(&fileAccessLock);
+  r = this->statFile(version, buf);
+  ink_mutex_release(&fileAccessLock);
+
+  return r;
+}
+
+bool
+Rollback::setLastModifiedTime()
+{
+  struct stat fileInfo;
+
+  // Now we need to get the modification time off of the new active file
+  if (statFile(ACTIVE_VERSION, &fileInfo) >= 0) {
+    fileLastModified = TS_ARCHIVE_STAT_MTIME(fileInfo);
+    return true;
+  } else {
+    // We really shoudn't fail to stat the file since we just
+    //  created it.  If we do, just punt and just use the current
+    //  time.
+    fileLastModified = (time(NULL) - ink_timezone()) * 1000000000;
+    return false;
+  }
+}
+
+// bool Rollback::checkForUserUpdate()
+//
+//  Called to check if the file has been changed
+//    by the user.  Timestamps are compared to see if a
+//    change occured
+//
+//  If the file has been changed, a new version is rolled.
+//    The new current version and its predicessor will
+//    be the same in this case.  While this is pointless,
+//    for Rolling backward, we need to the version number
+//    to up'ed so that WebFileEdit knows that the file has
+//    changed.  Rolling a new verion also has the effect
+//    of creating a new timestamp
+//
+bool
+Rollback::checkForUserUpdate()
+{
+
+  struct stat fileInfo;
+  bool result;
+
+  // Variables to roll the current version
+  version_t currentVersion_local;
+  textBuffer *buf;
+  RollBackCodes r;
+
+  ink_mutex_acquire(&fileAccessLock);
+
+  if (this->statFile(ACTIVE_VERSION, &fileInfo) < 0) {
+    ink_mutex_release(&fileAccessLock);
+    return false;
+  }
+
+  if (fileLastModified < TS_ARCHIVE_STAT_MTIME(fileInfo)) {
+
+    // We've been modified, Roll a new version
+    currentVersion_local = this->getCurrentVersion();
+    r = this->getVersion_ml(currentVersion_local, &buf);
+    if (r == OK_ROLLBACK) {
+      r = this->updateVersion_ml(buf, currentVersion_local);
+      delete buf;
+    }
+    if (r != OK_ROLLBACK) {
+      mgmt_log(stderr, "[Rollback::checkForUserUpdate] Failed to roll changed user file %s: %s",
+               fileName, RollbackStrings[r]);
+    }
+
+    mgmt_log(stderr, "User has changed config file %s\n", fileName);
+
+    result = true;
+  } else {
+    result = false;
+  }
+
+  ink_mutex_release(&fileAccessLock);
+  return result;
+}
+
+// int versionCmp(const void* i1, const void* i2) {
+//   A function that can be passed to qsort to sort arrays
+//     of versionInfo ptrs
+//
+int
+versionCmp(const void *i1, const void *i2)
+{
+  versionInfo *v1 = (versionInfo *) * (void **) i1;
+  versionInfo *v2 = (versionInfo *) * (void **) i2;
+
+  if ((v1->version) < v2->version) {
+    return -1;
+  } else if (v1->version == v2->version) {
+    return 0;
+  } else {
+    return 1;
+  }
+}
diff --git a/mgmt/Rollback.h b/mgmt/Rollback.h
new file mode 100644
index 00000000..7b877a01
--- /dev/null
+++ b/mgmt/Rollback.h
@@ -0,0 +1,224 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ROLLBACK_H_
+#define _ROLLBACK_H_
+
+/****************************************************************************
+ *
+ *  Rollback.h - Interface for class to allow rollback of configuration
+ *                  files
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_mutex.h"
+#include "ink_assert.h"
+#include "TextBuffer.h"
+#include "List.h"
+
+#define ACTIVE_VERSION 0
+#define INVALID_VERSION -1
+
+#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
+#define TS_ARCHIVE_STAT_MTIME(t)    ((t).st_mtime * 1000000000 + (t).st_mtimespec.tv_nsec)
+#elif HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+#define TS_ARCHIVE_STAT_MTIME(t)    ((t).st_mtime * 1000000000 + (t).st_mtim.tv_nsec)
+#else
+#define TS_ARCHIVE_STAT_MTIME(t)    ((t).st_mtime * 1000000000)
+#endif
+
+typedef int version_t;
+
+enum RollBackCodes
+{ OK_ROLLBACK, FILE_NOT_FOUND_ROLLBACK,
+  VERSION_NOT_CURRENT_ROLLBACK, SYS_CALL_ERROR_ROLLBACK,
+  INVALID_VERSION_ROLLBACK
+};
+
+class ExpandingArray;
+
+// Stores info about a backup version
+//   Can be put in to List.h lists
+struct versionInfo
+{
+  version_t version;
+  time_t modTime;
+  LINK(versionInfo, link);
+};
+
+//
+//  class Rollback
+//
+//  public functions
+//
+//  _ml functions assume the callee is handling locking issues
+//    via acquireLock() and releaseLock().  The non _ml
+//    simply grab the lock, call the corresponding _ml function,
+//    and then release the lock
+//
+//  removeVersion(version_t ) - removes the specified version from the
+//    configuration directory
+//
+//  revertToVersion(version_t) - rolls the active version to a new file
+//    The specified version of the file is copied to the active version
+//
+//  getVersion(version_t version, textBuffer** buffer, version_t) -
+//    creates a new textBuffer that contains the contents of the specified
+//    version.  CALLEE MUST DELETE the buffer
+//
+//  updateVersion(textBuffer* buf, version_t basedOn) - checks to
+//    if basedOn is the current version.  If it is not, the update
+//    rejected.  If it is current, the active file is versioned and
+//    the contents of buf become the new active file. newVersion tells us what
+//    the new version number should be.  -1 means the next in sequence
+//
+//  forceUpdate(textBuffer* buf, version_t) - Does not check is the new version
+//    is based on the current version, which can lead to data loss.  versions
+//    the active file and places the contents of buf into the active file
+//
+//  getCurrentVersion() - returns the current version number.  Unless the
+//    callee was acquired the fileAccessLock, the return value only represents
+//    a snap shot in time
+//
+//  numberOfVersions() - returns the number of versions in the config dir.
+//    Unless the callee was acquired the fileAccessLock, the return value
+//    only represents a snap shot in time
+//
+//  checkForUserUpdate() - compares the last known modification time
+//    of the active version of the file with that files current modification
+//    time.  Returns true if the file has been chaged manually or false
+//    if it hasn't
+//
+//  versionTimeStamp(version_t) - returns the modification time (mtime)
+//    of the version passed in.  If the version is not foundl, -1 is
+//    returned
+//
+//  findVersions(ExpandingArray* listNames) - scans the config directory for
+//    all versions of the file.  If listNames is not NULL, pointers to versionInfo
+//    structures are inserted into it.  If is the callee's responsibility
+//    to ats_free the versionInfo structures.  They are allocated by ats_malloc
+//
+// private functions
+//
+//  CURRENT_VERSION means the active version.  The active version does not
+//    have _version appended to its name.  All prior versions are stored
+//    as fileName_version.  Calling file operations with CURRENT_VERSION
+//    and this->currentVersion have different meanings.  this->currentVersion
+//    refers to a file with an _version which does not exist for the active
+//    version.
+//
+//  findVersions() - scans the configuration directory and returns
+//    the highest version number encountered
+//
+//  openFile(version_t version, int oflags) - a wrapper for open
+//    opens a file based on version number
+//
+//  statFile(version_t, struct stat*) - a wrapper for stat that
+//    that stats the specified version
+//
+//  createPathStr(version_t) - creates a string to the specified
+//    version of the file.  CALLEE DELETES storage
+//
+//  internalUpdate(textBuffer*, version_t) - does the really work of the
+//    public update functions.  newVersion tells us what the new
+//    version number should be.  -1 means the next in sequence
+
+class Rollback
+{
+public:
+  Rollback(const char *baseFileName, bool root_access_needed);
+   ~Rollback();
+
+  // Manual take out of lock required
+  void acquireLock()
+  {
+    ink_mutex_acquire(&fileAccessLock);
+  };
+  void releaseLock()
+  {
+    ink_mutex_release(&fileAccessLock);
+  };
+  RollBackCodes removeVersion_ml(version_t version);
+  RollBackCodes revertToVersion_ml(version_t version);
+  RollBackCodes getVersion_ml(version_t version, textBuffer ** buffer);
+  RollBackCodes updateVersion_ml(textBuffer * buf, version_t basedOn,
+                                 version_t newVersion = -1, bool notifyChange = true, bool incVersion = true);
+  RollBackCodes forceUpdate_ml(textBuffer * buf, version_t newVersion = -1);
+  version_t findVersions_ml(ExpandingArray * listNames);
+  version_t findVersions_ml(Queue<versionInfo> &q);
+  time_t versionTimeStamp_ml(version_t version);
+  version_t extractVersionInfo(ExpandingArray * listNames, const char *testFileName);
+
+  // Automatically take out lock
+  bool checkForUserUpdate();
+  RollBackCodes removeVersion(version_t version);
+  RollBackCodes revertToVersion(version_t version);
+  RollBackCodes getVersion(version_t version, textBuffer ** buffer);
+  RollBackCodes updateVersion(textBuffer * buf, version_t basedOn, version_t newVersion = -1, bool notifyChange = true, bool incVersion = true);
+  RollBackCodes forceUpdate(textBuffer * buf, version_t newVersion = -1);
+  version_t findVersions(ExpandingArray *);
+  time_t versionTimeStamp(version_t version);
+  int statVersion(version_t, struct stat *buf);
+  bool setLastModifiedTime();
+
+  // Lock not necessary since these are only valid for a
+  //  snap shot in time
+  version_t getCurrentVersion()
+  {
+    return currentVersion;
+  };
+  int numberOfVersions()
+  {
+    return numVersions;
+  };
+
+  // Not file based so no lock necessary
+  const char *getBaseName()
+  {
+    return fileName;
+  };
+
+private:
+  Rollback(const Rollback &);
+  int openFile(version_t version, int oflags, int *errnoPtr = NULL);
+  int closeFile(int fd, bool callSync);
+  int statFile(version_t version, struct stat *buf);
+  char *createPathStr(version_t version);
+  RollBackCodes internalUpdate(textBuffer * buf, version_t newVersion, bool notifyChange = true, bool incVersion = true);
+  ink_mutex fileAccessLock;
+  char *fileName;
+  size_t fileNameLen;
+  bool root_access_needed;
+  version_t currentVersion;
+  time_t fileLastModified;
+  int numVersions;
+  int numberBackups;
+  Queue<versionInfo> versionQ;       // stores the backup version info
+};
+
+// qSort comptable function to sort versionInfo*
+//   based on version number
+int versionCmp(const void *i1, const void *i2);
+#endif
diff --git a/mgmt/api/APITestCliRemote.cc b/mgmt/api/APITestCliRemote.cc
new file mode 100644
index 00000000..115dea84
--- /dev/null
+++ b/mgmt/api/APITestCliRemote.cc
@@ -0,0 +1,2441 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: APITestCliRemote.cc
+ * Purpose: An interactive cli to test remote mgmt API; UNIT TEST for mgmtAPI
+ * Created: lant
+ *
+ ***************************************************************************/
+
+/***************************************************************************
+ * Possible Commands:
+ ***************************************************************************
+ * Control Operations:
+ * -------------------
+ * state:   returns ON (proxy is on) or OFF (proxy is off)
+ * start:<tsArgs>  -   turns Proxy on, the tsArgs is optional;
+ *                     it can either be  "hostdb" or "all",
+ *                 eg. start, start:hostdb, start:all
+ * stop:    turns Proxy off
+ * restart: restarts Traffic Manager (Traffic Cop must be running)
+ *
+ * File operations:
+ * ---------------
+ * read_file:  reads hosting.config file
+ * write_file: write some made-up text to hosting.config file
+ * proxy.config.xxx (a records.config variable): returns value of that record
+ * records: tests get/set/get a record of each different type
+ *          (int, float, counter, string)
+ * err_recs: stress test record get/set functions by purposely entering
+ *              invalid record names and/or values
+ * get_mlt: tests TSRecordGetMlt
+ * set_mlt: tests TSRecordSetMlt
+ *
+ * read_url: tests TSReadFromUrl works by retrieving two valid urls
+ * test_url: tests robustness of TSReadFromUrl using invalid urls
+ *
+ * CfgContext operations:
+ * ---------------------
+ * cfg_get:<config-filename>: prints out the rules in confg-filename
+ * cfg:<config-filename>: switches the position of first and last rule of
+ *                        <config-filename>
+ * cfg_context: calls all the TSCfgCOntext helper function calls using
+ *              vaddrs.config
+ * cfg_socks: does some basic testing of socks.config (reads in file,
+ *            modifies it, eg. add new rules, then commits changes)
+ *
+ * Event Operations:
+ * ----------------
+ * active_events: lists the names of all currently active events
+ * MGMT_ALARM_xxx (event_name specified in CoreAPIShared.h or Alarms.h):
+ *                 resolves the specified event
+ * register: registers a generic callback (=eventCallbackFn) which
+ *           prints out the event name whenever an event is signalled
+ * unregister: unregisters the generic callback function eventCallbackFn
+ *
+ * Snapshot Operations:
+ * --------------------
+ * take_snap:<snap_name> - takes the snapshot snap_name
+ * restore_snap:<snap_name> restores the snapshot snap_name
+ * remove_snap:<snap_name> - removes the snapshot snap_name
+ * snapshots - lists all snapshots in etc/trafficserver/snapshot directory
+ *
+ * Diags
+ * ----
+ * diags - uses STATUS, NOTE, FATAL, ERROR diags
+ *
+ * Statistics
+ * ----------
+ * set_stats - sets dummy values for selected group of NODE, CLUSTER, PROCESS
+ *             records
+ * print_stats - prints the values for the same selected group of records
+ * reset_stats - resets all statistics to default values
+ */
+
+#include "ink_config.h"
+#include "ink_defs.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <strings.h>
+#include "ink_string.h"
+
+#include "mgmtapi.h"
+#include "CfgContextUtils.h"
+
+// refer to test_records() function
+#define TEST_STRING     1
+#define TEST_FLOAT      1
+#define TEST_INT        1
+#define TEST_COUNTER    1
+#define TEST_REC_SET    1
+#define TEST_REC_GET    0
+#define TEST_REC_GET_2  0
+
+#define SET_INT         0
+
+// set to 1 if running as part of installation package
+// set to 0 if being tested in developer environment
+#define INSTALL_TEST    0
+
+/***************************************************************************
+ * Printing Helper Functions
+ ***************************************************************************/
+
+/* ------------------------------------------------------------------------
+ * print_err
+ * ------------------------------------------------------------------------
+ * used to print the error description associated with the TSMgmtError err
+ */
+void
+print_err(const char *module, TSMgmtError err)
+{
+  char *err_msg;
+
+  err_msg = TSGetErrorMessage(err);
+  printf("(%s) ERROR: %s\n", module, err_msg);
+
+  if (err_msg)
+    TSfree(err_msg);
+}
+
+
+/*--------------------------------------------------------------
+ * print_ports
+ *--------------------------------------------------------------*/
+void
+print_ports(TSPortList list)
+{
+  int i, count;
+  TSPortEle *port_ele;
+
+  count = TSPortListLen(list);
+  for (i = 0; i < count; i++) {
+    port_ele = TSPortListDequeue(list);
+    printf(" %d \n", port_ele->port_a);
+    if (port_ele->port_b != -1)
+      printf(" %d - %d \n", port_ele->port_a, port_ele->port_b);
+    TSPortListEnqueue(list, port_ele);
+  }
+
+  return;
+}
+
+/*-------------------------------------------------------------
+ * print_string_list
+ *-------------------------------------------------------------*/
+void
+print_string_list(TSStringList list)
+{
+  int i, count, buf_pos = 0;
+  char *str;
+  char buf[1000];
+
+  if (!list)
+    return;
+  count = TSStringListLen(list);
+  for (i = 0; i < count; i++) {
+    str = TSStringListDequeue(list);
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s,", str);
+    buf_pos = strlen(buf);
+    TSStringListEnqueue(list, str);
+  }
+  printf("%s \n", buf);
+}
+
+/*-------------------------------------------------------------
+ * print_int_list
+ *-------------------------------------------------------------*/
+void
+print_int_list(TSIntList list)
+{
+  int i, count, buf_pos = 0;
+  int *elem;
+  char buf[1000];
+
+  count = TSIntListLen(list);
+  for (i = 0; i < count; i++) {
+    elem = TSIntListDequeue(list);
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%d:", *elem);
+    buf_pos = strlen(buf);
+    TSIntListEnqueue(list, elem);
+  }
+  printf("Int List: %s \n", buf);
+}
+
+/*-------------------------------------------------------
+ * print_domain_list
+ *-------------------------------------------------------*/
+void
+print_domain_list(TSDomainList list)
+{
+  int i, count;
+  TSDomain *proxy;
+
+  count = TSDomainListLen(list);
+  for (i = 0; i < count; i++) {
+    proxy = TSDomainListDequeue(list);
+    if (proxy->domain_val)
+      printf("%s:%d\n", proxy->domain_val, proxy->port);
+    TSDomainListEnqueue(list, proxy);
+  }
+}
+
+
+void
+print_ip_addr_ele(TSIpAddrEle * ele)
+{
+  if (!ele)
+    return;
+
+  if (ele->type == TS_IP_RANGE) {
+    if (ele->cidr_a != -1)
+      printf("IP_addr: %s/%d - %s/%d\n", ele->ip_a, ele->cidr_a, ele->ip_b, ele->cidr_b);
+    else
+      printf("IP_addr: %s - %s\n", ele->ip_a, ele->ip_b);
+  } else {
+    if (ele->cidr_a != -1)
+      printf("IP_addr: %s/%d \n", ele->ip_a, ele->cidr_a);
+    else
+      printf("IP_addr: %s \n", ele->ip_a);
+  }
+}
+
+/*-------------------------------------------------------
+ * print_ip_list
+ *-------------------------------------------------------*/
+void
+print_ip_list(TSIpAddrList list)
+{
+  int i, count;
+  TSIpAddrEle *ele;
+
+  count = TSIpAddrListLen(list);
+  for (i = 0; i < count; i++) {
+    ele = TSIpAddrListDequeue(list);
+    print_ip_addr_ele(ele);
+
+    TSIpAddrListEnqueue(list, ele);
+  }
+}
+
+/*-------------------------------------------------------
+ * print_list_of_ip_list
+ *-------------------------------------------------------*/
+void
+print_list_of_ip_list(TSList list)
+{
+  int i, count;
+  TSIpAddrList ele;
+
+  count = TSIpAddrListLen(list);
+  for (i = 0; i < count; i++) {
+    ele = TSListDequeue(list);
+    printf("\n");
+    print_ip_list(ele);
+    printf("\n");
+    TSListEnqueue(list, ele);
+  }
+
+}
+
+
+/*-------------------------------------------------------
+ * print_pd_sspec
+ *-------------------------------------------------------*/
+void
+print_pd_sspec(TSPdSsFormat info)
+{
+  switch (info.pd_type) {
+  case TS_PD_DOMAIN:
+    printf("Prime Dest: dest_domain=%s\n", info.pd_val);
+    break;
+  case TS_PD_HOST:
+    printf("Prime Host: dest_host=%s\n", info.pd_val);
+    break;
+  case TS_PD_IP:
+    printf("Prime IP: dest_ip=%s\n", info.pd_val);
+    break;
+  case TS_PD_URL_REGEX:
+    printf("Prime Url regex: url_regex=%s\n", info.pd_val);
+    break;
+  case TS_PD_URL:
+    printf("Prime Url: url=%s\n", info.pd_val);
+    break;
+  default:
+    break;
+  }
+
+  printf("Secondary Specifiers:\n");
+  printf("\ttime: %d:%d-%d:%d\n",
+         info.sec_spec.time.hour_a, info.sec_spec.time.min_a, info.sec_spec.time.hour_b, info.sec_spec.time.min_b);
+
+  if (info.sec_spec.src_ip)
+    printf("\tsrc_ip: %s\n", info.sec_spec.src_ip);
+
+  if (info.sec_spec.prefix)
+    printf("\tprefix: %s\n", info.sec_spec.prefix);
+
+  if (info.sec_spec.suffix)
+    printf("\tsuffix: %s\n", info.sec_spec.suffix);
+
+  printf("\tport-a: %d\n", info.sec_spec.port->port_a);
+  printf("\tport-b: %d\n", info.sec_spec.port->port_b);
+
+  printf("\tmethod: ");
+  switch (info.sec_spec.method) {
+  case TS_METHOD_NONE:
+    printf("NONE");
+    break;
+  case TS_METHOD_GET:
+    printf("GET");
+    break;
+  case TS_METHOD_POST:
+    printf("POST");
+    break;
+  case TS_METHOD_PUT:
+    printf("PUT");
+    break;
+  case TS_METHOD_TRACE:
+    printf("TRACE");
+    break;
+  case TS_METHOD_UNDEFINED:
+    printf("UNDEFINED");
+    break;
+  default:
+    // Handled here:
+    // TS_METHOD_PUSH
+    break;
+  }
+  printf("\n");
+
+
+  printf("\tscheme: ");
+  switch (info.sec_spec.scheme) {
+  case TS_SCHEME_NONE:
+    printf("NONE\n");
+    break;
+  case TS_SCHEME_HTTP:
+    printf("HTTP\n");
+    break;
+  case TS_SCHEME_HTTPS:
+    printf("HTTPS\n");
+    break;
+  case TS_SCHEME_UNDEFINED:
+    printf("UNDEFINED\n");
+    break;
+  }
+
+  return;
+}
+
+
+void
+print_cache_ele(TSCacheEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  char *pd_str, *time_str;
+
+  char buf[MAX_BUF_SIZE];
+  int buf_pos = 0;
+
+  bzero(buf, MAX_BUF_SIZE);
+
+  pd_str = pdest_sspec_to_string(ele->cache_info.pd_type, ele->cache_info.pd_val, &(ele->cache_info.sec_spec));
+  if (!pd_str) {
+    printf("pd_str is null.\n");
+    return;
+  }
+
+  snprintf(buf, sizeof(buf), "%s ", pd_str);
+  buf_pos = strlen(buf);
+  ats_free(pd_str);
+
+  // now format the message
+  switch (ele->cfg_ele.type) {
+  case TS_CACHE_NEVER:
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "action=never-cache");
+    break;
+  case TS_CACHE_IGNORE_NO_CACHE:
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "action=ignore-no-cache");
+    break;
+  case TS_CACHE_CLUSTER_CACHE_LOCAL:
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "action=cluster-cache-local");
+    break;
+  case TS_CACHE_IGNORE_CLIENT_NO_CACHE:
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "action=ignore-server-no-cache");
+    break;
+  case TS_CACHE_IGNORE_SERVER_NO_CACHE:
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "action=ignore-client-no-cache");
+    break;
+  case TS_CACHE_PIN_IN_CACHE:
+    time_str = hms_time_to_string(ele->time_period);
+    if (!time_str)
+      return;
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "pin-in-cache=%s", time_str);
+    ats_free(time_str);
+    break;
+  case TS_CACHE_REVALIDATE:
+    time_str = hms_time_to_string(ele->time_period);
+    if (!time_str)
+      return;
+    snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "revalidate=%s", time_str);
+    ats_free(time_str);
+    break;
+  default:                     /* invalid action directive */
+    printf("hello..\n");
+    return;
+  }
+  printf("%s\n", buf);
+
+  /*
+     print_pd_sspec(ele->cache_info);
+     printf("Time: %d day, %d hr, %d min, %d sec\n", ele->time_period.d, ele->time_period.h,
+     ele->time_period.m, ele->time_period.s);
+   */
+  return;
+}
+
+
+void
+print_hosting_ele(TSHostingEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  switch (ele->pd_type) {
+  case TS_PD_DOMAIN:
+    printf("dest_domain=%s\n", ele->pd_val);
+    break;
+  case TS_PD_HOST:
+    printf("dest_host=%s\n", ele->pd_val);
+    break;
+  case TS_PD_IP:
+    printf("ip=%s\n", ele->pd_val);
+    break;
+  case TS_PD_URL_REGEX:
+    printf("url_regex=%s\n", ele->pd_val);
+    break;
+  case TS_PD_URL:
+    printf("url=%s\n", ele->pd_val);
+    break;
+  default:
+    printf("INVALID Prime Dest specifier\n");
+    break;
+  }
+
+  print_int_list(ele->volumes);
+}
+
+void
+print_icp_ele(TSIcpEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  int peer_type;
+
+  switch (ele->peer_type) {
+  case TS_ICP_PARENT:
+    peer_type = 1;
+    break;
+  case TS_ICP_SIBLING:
+    peer_type = 2;
+    break;
+
+  default:
+    peer_type = 10;
+  }
+
+  printf("%s:%s:%d:%d:%d:%d:%s:%d:\n",
+         ele->peer_hostname,
+         ele->peer_host_ip_addr,
+         peer_type,
+         ele->peer_proxy_port,
+         ele->peer_icp_port,
+         (ele->is_multicast ? 1 : 0), ele->mc_ip_addr, (ele->mc_ttl == TS_MC_TTL_SINGLE_SUBNET ? 1 : 2)
+    );
+}
+
+void
+print_ip_allow_ele(TSIpAllowEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  print_ip_addr_ele(ele->src_ip_addr);
+}
+
+void
+print_parent_ele(TSParentProxyEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  printf("parent rule type: %d\n", ele->cfg_ele.type);
+  print_pd_sspec(ele->parent_info);
+  printf("round robin? %d\n", ele->rr);
+  print_domain_list(ele->proxy_list);
+  printf("direct? %d\n", ele->direct);
+
+}
+
+void
+print_volume_ele(TSVolumeEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  printf("volume #: %d\n", ele->volume_num);
+  printf("scheme: %d\n", ele->scheme);
+  switch (ele->size_format) {
+  case TS_SIZE_FMT_ABSOLUTE:
+    printf("volume_size=%d\n", ele->volume_size);
+    break;
+  case TS_SIZE_FMT_PERCENT:
+    printf("volume_size=%% %d\n", ele->volume_size);
+    break;
+  default:
+    // Handled here:
+    // TS_SIZE_FMT_UNDEFINED
+    break;
+  }
+}
+
+void
+print_plugin_ele(TSPluginEle * ele)
+{
+  if (!ele) {
+    printf("can't print plugin ele\n");
+  }
+
+  printf("name: %s\t\t", ele->name);
+  if (ele->args) {
+    printf("args: ");
+    print_string_list(ele->args);
+  } else {
+    printf("NO ARGS\n");
+  }
+}
+
+void
+print_remap_ele(TSRemapEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  char buf[MAX_BUF_SIZE];
+  bzero(buf, MAX_BUF_SIZE);
+
+  switch (ele->cfg_ele.type) {
+  case TS_REMAP_MAP:
+    ink_strlcat(buf, "map", sizeof(buf));
+    break;
+  case TS_REMAP_REVERSE_MAP:
+    ink_strlcat(buf, "reverse_map", sizeof(buf));
+    break;
+  case TS_REMAP_REDIRECT:
+    ink_strlcat(buf, "redirect", sizeof(buf));
+    break;
+  case TS_REMAP_REDIRECT_TEMP:
+    ink_strlcat(buf, "redirect_temporary", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // Lots of cases...
+    break;
+  }
+  // space delimitor
+  ink_strlcat(buf, " ", sizeof(buf));
+
+  // from scheme
+  switch (ele->from_scheme) {
+  case TS_SCHEME_HTTP:
+    ink_strlcat(buf, "http", sizeof(buf));
+    break;
+  case TS_SCHEME_HTTPS:
+    ink_strlcat(buf, "https", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_SCHEME_NONE, TS_SCHEME_UNDEFINED, TS_SCHEME_NONE,
+    // TS_SCHEME_UNDEFINED
+    break;
+  }
+  ink_strlcat(buf, "://", sizeof(buf));
+
+  // from host
+  if (ele->from_host) {
+    ink_strlcat(buf, ele->from_host, sizeof(buf));
+  }
+  // from port
+  if (ele->from_port != TS_INVALID_PORT) {
+    snprintf(buf, sizeof(buf), "%s:%d", buf, ele->from_port);
+  }
+  // from host path
+  if (ele->from_path_prefix) {
+    ink_strlcat(buf, "/", sizeof(buf));
+    ink_strlcat(buf, ele->from_path_prefix, sizeof(buf));
+  }
+  // space delimitor
+  ink_strlcat(buf, " ", sizeof(buf));
+
+  // to scheme
+  switch (ele->to_scheme) {
+  case TS_SCHEME_HTTP:
+    ink_strlcat(buf, "http", sizeof(buf));
+    break;
+  case TS_SCHEME_HTTPS:
+    ink_strlcat(buf, "https", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_SCHEME_NONE, TS_SCHEME_UNDEFINED
+    break;
+  }
+  ink_strlcat(buf, "://", sizeof(buf));
+
+  // to host
+  if (ele->to_host) {
+    ink_strlcat(buf, ele->to_host, sizeof(buf));
+  }
+  // to port
+  if (ele->to_port != TS_INVALID_PORT) {
+    snprintf(buf, sizeof(buf), "%s:%d", buf, ele->to_port);
+  }
+  // to host path
+  if (ele->to_path_prefix) {
+    ink_strlcat(buf, "/", sizeof(buf));
+    ink_strlcat(buf, ele->to_path_prefix, sizeof(buf));
+  }
+
+  printf("%s\n", buf);
+  return;
+}
+
+void
+print_socks_ele(TSSocksEle * ele)
+{
+  printf("\n");
+  if (!ele) {
+    printf("can't print ele\n");
+  } else if (ele->ip_addrs) {
+    print_ip_list(ele->ip_addrs);
+    printf("\n");
+  } else {
+    print_ip_addr_ele(ele->dest_ip_addr);
+    print_domain_list(ele->socks_servers);
+    printf("round_robin=%d\n", ele->rr);
+  }
+}
+
+void
+print_split_dns_ele(TSSplitDnsEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+    return;
+  }
+
+  char *str;
+  char buf[MAX_BUF_SIZE];
+  bzero(buf, MAX_BUF_SIZE);
+
+  char *pd_name = 0;
+  switch (ele->pd_type) {
+  case TS_PD_DOMAIN:
+    pd_name = ats_strdup("dest_domain");
+    break;
+  case TS_PD_HOST:
+    pd_name = ats_strdup("dest_host");
+    break;
+  case TS_PD_URL_REGEX:
+    pd_name = ats_strdup("url_regex");
+    break;
+  case TS_PD_URL:
+    pd_name = ats_strdup("url");
+    break;
+  default:
+    pd_name = ats_strdup("?????");
+    // Handled here:
+    // TS_PD_IP, TS_PD_UNDEFINED
+    break;
+  }
+
+  if (ele->pd_val) {
+    ink_strlcat(buf, pd_name, sizeof(buf));
+    ink_strlcat(buf, "=", sizeof(buf));
+    ink_strlcat(buf, ele->pd_val, sizeof(buf));
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+
+  if (ele->dns_servers_addrs) {
+    ink_strlcat(buf, "named=", sizeof(buf));
+    str = ip_addr_list_to_string((LLQ *) ele->dns_servers_addrs, " ");
+    ink_strlcat(buf, str, sizeof(buf));
+    ats_free(str);
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+
+  if (ele->def_domain) {
+    ink_strlcat(buf, "dns_server=", sizeof(buf));
+    ink_strlcat(buf, ele->def_domain, sizeof(buf));
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+
+  if (ele->search_list) {
+    ink_strlcat(buf, "search_list=", sizeof(buf));
+    str = domain_list_to_string(ele->search_list, " ");
+    ink_strlcat(buf, str, sizeof(buf));
+    ats_free(str);
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+  printf("%s\n", buf);
+  ats_free(pd_name);
+
+  return;
+}
+
+void
+print_storage_ele(TSStorageEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  if (ele->pathname)
+    printf("pathname=%s, size=%d\n", ele->pathname, ele->size);
+}
+
+void
+print_update_ele(TSUpdateEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  printf("url: %s\n", ele->url);
+  printf("headers: ");
+  print_string_list(ele->headers);
+  printf("%d: %d: %d\n", ele->offset_hour, ele->interval, ele->recursion_depth);
+}
+
+void
+print_vaddrs_ele(TSVirtIpAddrEle * ele)
+{
+  if (!ele) {
+    printf("can't print ele\n");
+  }
+
+  printf("ip=%s, intr=%s, sub_intr=%d\n", ele->ip_addr, ele->intr, ele->sub_intr);
+}
+
+//
+// print_ele_list
+//
+// prints a list of Ele's
+//
+
+void
+print_ele_list(TSFileNameT file, TSCfgContext ctx)
+{
+  TSFileNameT filename = file;
+  TSCfgEle *ele;
+
+  if (!ctx) {
+    printf("[print_ele_list] invalid TSCFgContext\n");
+    return;
+  }
+
+  int count = TSCfgContextGetCount(ctx);
+  printf("\n[print_ele_list] %d rules\n", count);
+  for (int i = 0; i < count; i++) {
+    ele = TSCfgContextGetEleAt(ctx, i);
+
+    switch (filename) {
+    case TS_FNAME_CACHE_OBJ:
+      print_cache_ele((TSCacheEle *) ele);
+      break;
+    case TS_FNAME_HOSTING:
+      print_hosting_ele((TSHostingEle *) ele);
+      break;
+    case TS_FNAME_ICP_PEER:
+      print_icp_ele((TSIcpEle *) ele);
+      break;
+    case TS_FNAME_IP_ALLOW:
+      print_ip_allow_ele((TSIpAllowEle *) ele);
+      break;
+    case TS_FNAME_LOGS_XML:
+      break;                    /*NOT DONE */
+    case TS_FNAME_PARENT_PROXY:
+      print_parent_ele((TSParentProxyEle *) ele);
+      break;
+    case TS_FNAME_VOLUME:
+      print_volume_ele((TSVolumeEle *) ele);
+      break;
+    case TS_FNAME_PLUGIN:
+      print_plugin_ele((TSPluginEle *) ele);
+      break;
+    case TS_FNAME_REMAP:
+      print_remap_ele((TSRemapEle *) ele);
+      break;
+    case TS_FNAME_SOCKS:
+      print_socks_ele((TSSocksEle *) ele);
+      break;
+    case TS_FNAME_SPLIT_DNS:
+      print_split_dns_ele((TSSplitDnsEle *) ele);
+      break;
+    case TS_FNAME_STORAGE:
+      print_storage_ele((TSStorageEle *) ele);
+      break;
+    case TS_FNAME_UPDATE_URL:
+      print_update_ele((TSUpdateEle *) ele);
+      break;
+    case TS_FNAME_VADDRS:
+      print_vaddrs_ele((TSVirtIpAddrEle *) ele);
+    default:
+      printf("[print_ele_list] invalid file type \n");
+      return;
+    }
+  }
+
+  return;
+}
+
+
+/***************************************************************************
+ * Control Testing
+ ***************************************************************************/
+void
+print_proxy_state()
+{
+  TSProxyStateT state = TSProxyStateGet();
+
+  switch (state) {
+  case TS_PROXY_ON:
+    printf("Proxy State = ON\n");
+    break;
+  case TS_PROXY_OFF:
+    printf("Proxy State = OFF\n");
+    break;
+  default:
+    printf("ERROR: Proxy State Undefined!\n");
+    break;
+  }
+}
+
+// starts Traffic Server (turns proxy on)
+void
+start_TS(char *tsArgs)
+{
+  TSMgmtError ret;
+  TSCacheClearT clear = TS_CACHE_CLEAR_OFF;
+
+  char *args = strtok(tsArgs, ":");
+  args = strtok(NULL, ":");
+  if (args) {
+    if (strcmp(args, "all\n") == 0)
+      clear = TS_CACHE_CLEAR_ON;
+    else if (strcmp(args, "hostdb\n") == 0)
+      clear = TS_CACHE_CLEAR_HOSTDB;
+  } else {
+    clear = TS_CACHE_CLEAR_OFF;
+  }
+
+  printf("STARTING PROXY with cache: %d\n", clear);
+  if ((ret = TSProxyStateSet(TS_PROXY_ON, clear)) != TS_ERR_OKAY)
+    printf("[TSProxyStateSet] turn on FAILED\n");
+  print_err("start_TS", ret);
+}
+
+// stops Traffic Server (turns proxy off)
+void
+stop_TS()
+{
+  TSMgmtError ret;
+
+  printf("STOPPING PROXY\n");
+  if ((ret = TSProxyStateSet(TS_PROXY_OFF, TS_CACHE_CLEAR_OFF)) != TS_ERR_OKAY)
+    printf("[TSProxyStateSet] turn off FAILED\n");
+  print_err("stop_TS", ret);
+}
+
+// restarts Traffic Manager cluster wide (Traffic Cop must be running)
+void
+restart()
+{
+  TSMgmtError ret;
+
+  printf("RESTART - Cluster wide\n");
+  if ((ret = TSRestart(true)) != TS_ERR_OKAY)
+    printf("[TSRestart] FAILED\n");
+
+  print_err("restart", ret);
+}
+
+// rereads all the configuration files
+void
+reconfigure()
+{
+  TSMgmtError ret;
+
+  printf("RECONFIGURE\n");
+  if ((ret = TSReconfigure()) != TS_ERR_OKAY)
+    printf("[TSReconfigure] FAILED\n");
+
+  print_err("reconfigure", ret);
+}
+
+/* ------------------------------------------------------------------------
+ * test_action_need
+ * ------------------------------------------------------------------------
+ * tests if correct action need is returned when requested record is set
+ */
+void
+test_action_need(void)
+{
+  TSActionNeedT action;
+
+  // RU_NULL record
+  TSRecordSetString("proxy.config.proxy_name", "proxy_dorky", &action);
+  printf("[TSRecordSetString] proxy.config.proxy_name \n\tAction Should: [%d]\n\tAction is    : [%d]\n",
+         TS_ACTION_UNDEFINED, action);
+
+  // RU_RESTART_TS record
+  TSRecordSetInt("proxy.config.cluster.cluster_port", 6666, &action);
+  printf("[TSRecordSetInt] proxy.config.cluster.cluster_port\n\tAction Should: [%d]\n\tAction is    : [%d]\n",
+         TS_ACTION_RESTART, action);
+
+}
+
+/* Bouncer the traffic_server process(es) */
+void
+bounce()
+{
+  TSMgmtError ret;
+
+  printf("BOUNCER - Cluster wide\n");
+  if ((ret = TSBounce(true)) != TS_ERR_OKAY)
+    printf("[TSBounce] FAILED\n");
+
+  print_err("bounce", ret);
+}
+
+/***************************************************************************
+ * Record Testing
+ ***************************************************************************/
+
+/* ------------------------------------------------------------------------
+ * test_error_records
+ * ------------------------------------------------------------------------
+ * stress test error handling by purposely being dumb; send requests to
+ * get invalid record names
+ */
+void
+test_error_records()
+{
+  TSInt port1, new_port = 8080;
+  TSActionNeedT action;
+  TSMgmtError ret;
+  TSFloat flt1;
+  TSCounter ctr1;
+
+  printf("\n");
+  // test get integer
+  fprintf(stderr, "Test invalid record names\n");
+
+  ret = TSRecordGetInt("proy.config.cop.core_signal", &port1);
+  if (ret != TS_ERR_OKAY) {
+    print_err("TSRecordGetInt", ret);
+  } else
+    printf("[TSRecordGetInt] proxy.config.cop.core_signal=%" PRId64 " \n", port1);
+
+  // test set integer
+  ret = TSRecordSetInt("proy.config.cop.core_signal", new_port, &action);
+  print_err("TSRecordSetInt", ret);
+
+
+  printf("\n");
+  if (TSRecordGetCounter("proxy.press.socks.connections_successful", &ctr1) != TS_ERR_OKAY)
+    printf("TSRecordGetCounter FAILED!\n");
+  else
+    printf("[TSRecordGetCounter]proxy.process.socks.connections_successful=%" PRId64 " \n", ctr1);
+
+  printf("\n");
+  if (TSRecordGetFloat("proxy.conig.http.cache.fuzz.probability", &flt1) != TS_ERR_OKAY)
+    printf("TSRecordGetFloat FAILED!\n");
+  else
+    printf("[TSRecordGetFloat] proxy.config.http.cache.fuzz.probability=%f\n", flt1);
+
+}
+
+/* ------------------------------------------------------------------------
+ * test_records
+ * ------------------------------------------------------------------------
+ * stress test record functionality by getting and setting different
+ * records types; use the #defines defined above to determine which
+ * type of tests you'd like turned on/off
+ */
+void
+test_records()
+{
+  TSActionNeedT action;
+  char *rec_value;
+  char new_str[] = "new_record_value";
+  TSInt port1, port2, new_port = 52432;
+  TSFloat flt1, flt2, new_flt = 1.444;
+  TSCounter ctr1, ctr2, new_ctr = 6666;
+  TSMgmtError err;
+
+  /********************* START TEST SECTION *****************/
+  printf("\n\n");
+
+#if SET_INT
+  // test set integer
+  if (TSRecordSetInt("proxy.config.cop.core_signal", new_port, &action) != TS_ERR_OKAY)
+    printf("TSRecordSetInt FAILED!\n");
+  else
+    printf("[TSRecordSetInt] proxy.config.cop.core_signal=%" PRId64 " \n", new_port);
+#endif
+
+
+#if TEST_REC_GET
+  TSRecordEle *rec_ele;
+  // retrieve a string value record using generic RecordGet
+  rec_ele = TSRecordEleCreate();
+  if (TSRecordGet("proxy.config.http.cache.vary_default_other", rec_ele) != TS_ERR_OKAY)
+    printf("TSRecordGet FAILED!\n");
+  else
+    printf("[TSRecordGet] proxy.config.http.cache.vary_default_other=%s\n", rec_ele->string_val);
+
+  TSRecordEleDestroy(rec_ele);
+  printf("\n\n");
+#endif
+
+
+#if TEST_REC_GET_2
+  // retrieve a string value record using generic RecordGet
+  rec_ele = TSRecordEleCreate();
+  if (TSRecordGet("proxy.config.proxy_name", rec_ele) != TS_ERR_OKAY)
+    printf("TSRecordGet FAILED!\n");
+  else
+    printf("[TSRecordGet] proxy.config.proxy_name=%s\n", rec_ele->string_val);
+
+  TSRecordEleDestroy(rec_ele);
+  printf("\n\n");
+#endif
+
+#if TEST_STRING
+  // retrieve an string value record using GetString
+  err = TSRecordGetString("proxy.config.proxy_name", &rec_value);
+  if (err != TS_ERR_OKAY)
+    print_err("TSRecordGetString", err);
+  else
+    printf("[TSRecordGetString] proxy.config.proxy_name=%s\n", rec_value);
+  TSfree(rec_value);
+
+  // test RecordSet
+  err = TSRecordSetString("proxy.config.proxy_name", (TSString) new_str, &action);
+  if (err != TS_ERR_OKAY)
+    print_err("TSRecordSetString", err);
+  else
+    printf("[TSRecordSetString] proxy.config.proxy_name=%s\n", new_str);
+
+
+  // get
+  err = TSRecordGetString("proxy.config.proxy_name", &rec_value);
+  if (err != TS_ERR_OKAY)
+    print_err("TSRecordGetString", err);
+  else
+    printf("[TSRecordGetString] proxy.config.proxy_name=%s\n", rec_value);
+  printf("\n");
+  TSfree(rec_value);
+#endif
+
+#if TEST_INT
+  printf("\n");
+  // test get integer
+  if (TSRecordGetInt("proxy.config.cop.core_signal", &port1) != TS_ERR_OKAY)
+    printf("TSRecordGetInt FAILED!\n");
+  else
+    printf("[TSRecordGetInt] proxy.config.cop.core_signal=%" PRId64 " \n", port1);
+
+  // test set integer
+  if (TSRecordSetInt("proxy.config.cop.core_signal", new_port, &action) != TS_ERR_OKAY)
+    printf("TSRecordSetInt FAILED!\n");
+  else
+    printf("[TSRecordSetInt] proxy.config.cop.core_signal=%" PRId64 " \n", new_port);
+
+  if (TSRecordGetInt("proxy.config.cop.core_signal", &port2) != TS_ERR_OKAY)
+    printf("TSRecordGetInt FAILED!\n");
+  else
+    printf("[TSRecordGetInt] proxy.config.cop.core_signal=%" PRId64 " \n", port2);
+  printf("\n");
+#endif
+
+#if TEST_COUNTER
+  printf("\n");
+
+  if (TSRecordGetCounter("proxy.process.socks.connections_successful", &ctr1) != TS_ERR_OKAY)
+    printf("TSRecordGetCounter FAILED!\n");
+  else
+    printf("[TSRecordGetCounter]proxy.process.socks.connections_successful=%" PRId64 " \n", ctr1);
+
+  if (TSRecordSetCounter("proxy.process.socks.connections_successful", new_ctr, &action) != TS_ERR_OKAY)
+    printf("TSRecordSetCounter FAILED!\n");
+  else
+    printf("[TSRecordSetCounter] proxy.process.socks.connections_successful=%" PRId64 " \n", new_ctr);
+
+  if (TSRecordGetCounter("proxy.process.socks.connections_successful", &ctr2) != TS_ERR_OKAY)
+    printf("TSRecordGetCounter FAILED!\n");
+  else
+    printf("[TSRecordGetCounter]proxy.process.socks.connections_successful=%" PRId64 " \n", ctr2);
+  printf("\n");
+#endif
+
+#if TEST_FLOAT
+  printf("\n");
+  if (TSRecordGetFloat("proxy.config.http.cache.fuzz.probability", &flt1) != TS_ERR_OKAY)
+    printf("TSRecordGetFloat FAILED!\n");
+  else
+    printf("[TSRecordGetFloat] proxy.config.http.cache.fuzz.probability=%f\n", flt1);
+
+  if (TSRecordSetFloat("proxy.config.http.cache.fuzz.probability", new_flt, &action) != TS_ERR_OKAY)
+    printf("TSRecordSetFloat FAILED!\n");
+  else
+    printf("[TSRecordSetFloat] proxy.config.http.cache.fuzz.probability=%f\n", new_flt);
+
+  if (TSRecordGetFloat("proxy.config.http.cache.fuzz.probability", &flt2) != TS_ERR_OKAY)
+    printf("TSRecordGetFloat FAILED!\n");
+  else
+    printf("[TSRecordGetFloat] proxy.config.http.cache.fuzz.probability=%f\n", flt2);
+  printf("\n");
+#endif
+
+#if TEST_REC_SET
+  printf("\n");
+  if (TSRecordSet("proxy.config.http.cache.fuzz.probability", "-0.3456", &action) != TS_ERR_OKAY)
+    printf("TSRecordSet FAILED!\n");
+  else
+    printf("[TSRecordSet] proxy.config.http.cache.fuzz.probability=-0.3456\n");
+
+  if (TSRecordGetFloat("proxy.config.http.cache.fuzz.probability", &flt2) != TS_ERR_OKAY)
+    printf("TSRecordGetFloat FAILED!\n");
+  else
+    printf("[TSRecordGetFloat] proxy.config.http.cache.fuzz.probability=%f\n", flt2);
+#endif
+
+}
+
+// retrieves the value of the "proxy.config.xxx" record requested at input
+void
+test_rec_get(char *rec_name)
+{
+  TSRecordEle *rec_ele;
+  TSMgmtError ret;
+  char *name;
+
+  name = ats_strdup(rec_name);
+  printf("[test_rec_get] Get Record: %s\n", name);
+
+  // retrieve a string value record using generic RecordGet
+  rec_ele = TSRecordEleCreate();
+  if ((ret = TSRecordGet(name, rec_ele)) != TS_ERR_OKAY)
+    printf("TSRecordGet FAILED!\n");
+  else {
+    switch (rec_ele->rec_type) {
+    case TS_REC_INT:
+      printf("[TSRecordGet] %s=%" PRId64 "\n", name, rec_ele->valueT.int_val);
+      break;
+    case TS_REC_COUNTER:
+      printf("[TSRecordGet] %s=%" PRId64 "\n", name, rec_ele->valueT.counter_val);
+      break;
+    case TS_REC_FLOAT:
+      printf("[TSRecordGet] %s=%f\n", name, rec_ele->valueT.float_val);
+      break;
+    case TS_REC_STRING:
+      printf("[TSRecordGet] %s=%s\n", name, rec_ele->valueT.string_val);
+      break;
+    default:
+      // Handled here:
+      // TS_REC_UNDEFINED
+      break;
+    }
+  }
+
+  print_err("TSRecordGet", ret);
+
+  TSRecordEleDestroy(rec_ele);
+  TSfree(name);
+}
+
+/* ------------------------------------------------------------------------
+ * test_record_get_mlt
+ * ------------------------------------------------------------------------
+ * Creates a list of record names to retrieve, and then batch request to
+ * get list of records
+ */
+void
+test_record_get_mlt(void)
+{
+  TSRecordEle *rec_ele;
+  TSStringList name_list;
+  TSList rec_list;
+  int i, num;
+  char *v1, *v2, *v3, *v6, *v7, *v8;
+  TSMgmtError ret;
+
+  name_list = TSStringListCreate();
+  rec_list = TSListCreate();
+
+  const size_t v1_size = (sizeof(char) * (strlen("proxy.config.proxy_name") + 1));
+  v1 = (char *) TSmalloc(v1_size);
+  ink_strlcpy(v1, "proxy.config.proxy_name", v1_size);
+  const size_t v2_size = (sizeof(char) * (strlen("proxy.config.bin_path") + 1));
+  v2 = (char *) TSmalloc(v2_size);
+  ink_strlcpy(v2, "proxy.config.bin_path", v2_size);
+  const size_t v3_size = (sizeof(char) * (strlen("proxy.config.manager_binary") + 1));
+  v3 = (char *) TSmalloc(v3_size);
+  ink_strlcpy(v3, "proxy.config.manager_binary", v3_size);
+  const size_t v6_size = (sizeof(char) * (strlen("proxy.config.env_prep") + 1));
+  v6 = (char *) TSmalloc(v6_size);
+  ink_strlcpy(v6, "proxy.config.env_prep", v6_size);
+  const size_t v7_size = (sizeof(char) * (strlen("proxy.config.cop.core_signal") + 1));
+  v7 = (char *) TSmalloc(v7_size);
+  ink_strlcpy(v7, "proxy.config.cop.core_signal", v7_size);
+  const size_t v8_size = (sizeof(char) * (strlen("proxy.config.http.cache.fuzz.probability") + 1));
+  v8 = (char *) TSmalloc(v8_size);
+  ink_strlcpy(v8, "proxy.config.http.cache.fuzz.probability", v8_size);
+
+  // add the names to the get_list
+  TSStringListEnqueue(name_list, v1);
+  TSStringListEnqueue(name_list, v2);
+  TSStringListEnqueue(name_list, v3);
+  TSStringListEnqueue(name_list, v6);
+  TSStringListEnqueue(name_list, v7);
+  TSStringListEnqueue(name_list, v8);
+
+
+  num = TSStringListLen(name_list);
+  printf("Num Records to Get: %d\n", num);
+  ret = TSRecordGetMlt(name_list, rec_list);
+  // free the string list
+  TSStringListDestroy(name_list);
+  if (ret != TS_ERR_OKAY) {
+    print_err("TSStringListDestroy", ret);
+  }
+
+  for (i = 0; i < num; i++) {
+    rec_ele = (TSRecordEle *) TSListDequeue(rec_list);
+    if (!rec_ele) {
+      printf("ERROR\n");
+      break;
+    }
+    printf("Record: %s = ", rec_ele->rec_name);
+    switch (rec_ele->rec_type) {
+    case TS_REC_INT:
+      printf("%" PRId64 "\n", rec_ele->valueT.int_val);
+      break;
+    case TS_REC_COUNTER:
+      printf("%" PRId64 "\n", rec_ele->valueT.counter_val);
+      break;
+    case TS_REC_FLOAT:
+      printf("%f\n", rec_ele->valueT.float_val);
+      break;
+    case TS_REC_STRING:
+      printf("%s\n", rec_ele->valueT.string_val);
+      break;
+    default:
+      // Handled here:
+      // TS_REC_UNDEFINED
+      break;
+    }
+    TSRecordEleDestroy(rec_ele);
+  }
+
+  TSListDestroy(rec_list);     // must dequeue and free each string individually
+
+  return;
+}
+
+/* ------------------------------------------------------------------------
+ * test_record_set_mlt
+ * ------------------------------------------------------------------------
+ * Creates a list of TSRecordEle's, and then batch request to set records
+ * Also checks to make sure correct action_need type is set.
+ */
+void
+test_record_set_mlt(void)
+{
+  TSList list;
+  TSRecordEle *ele1, *ele2, *ele3, *ele4, *ele5;
+  TSActionNeedT action = TS_ACTION_UNDEFINED;
+  TSMgmtError err;
+
+  list = TSListCreate();
+
+  ele1 = TSRecordEleCreate();  // TS_TYPE_UNDEFINED action
+  ele1->rec_name = TSstrdup("proxy.config.cli_binary");
+  ele1->rec_type = TS_REC_STRING;
+  ele1->valueT.string_val = TSstrdup(ele1->rec_name);
+
+  ele2 = TSRecordEleCreate();  // reread action
+  ele2->rec_name = TSstrdup("proxy.config.http.cache.fuzz.probability");
+  ele2->rec_type = TS_REC_FLOAT;
+  ele2->valueT.float_val = 0.1234;
+
+  ele3 = TSRecordEleCreate();  // undefined action
+  ele3->rec_name = TSstrdup("proxy.config.cop.core_signal");
+  ele3->rec_type = TS_REC_INT;
+  ele3->valueT.int_val = -4;
+
+  ele4 = TSRecordEleCreate();  //restart TM
+  ele4->rec_name = (char *) TSstrdup("proxy.local.cluster.type");
+  ele4->rec_type = TS_REC_INT;
+  ele4->valueT.int_val = 2;
+
+  ele5 = TSRecordEleCreate();  // reread action
+  ele5->rec_name = (char *) TSstrdup("proxy.config.cluster.mc_ttl");
+  ele5->rec_type = TS_REC_INT;
+  ele5->valueT.int_val = 555;
+
+
+  TSListEnqueue(list, ele4);
+  TSListEnqueue(list, ele1);
+  TSListEnqueue(list, ele2);
+  TSListEnqueue(list, ele3);
+  TSListEnqueue(list, ele5);
+
+  err = TSRecordSetMlt(list, &action);
+  print_err("TSRecordSetMlt", err);
+  fprintf(stderr, "[TSRecordSetMlt] Action Required: %d\n", action);
+
+  // cleanup: need to iterate through list and delete each ele
+  int count = TSListLen(list);
+  for (int i = 0; i < count; i++) {
+    TSRecordEle *ele = (TSRecordEle *) TSListDequeue(list);
+    TSRecordEleDestroy(ele);
+  }
+  TSListDestroy(list);
+}
+
+
+/***************************************************************************
+ * File I/O Testing
+ ***************************************************************************/
+
+// if valid==true, then use a valid url to read
+void
+test_read_url(bool valid)
+{
+  char *header = NULL;
+  int headerSize;
+  char *body = NULL;
+  int bodySize;
+  TSMgmtError err;
+
+  if (!valid) {
+    // first try
+
+    err = TSReadFromUrlEx("hsdfasdf.com:80/index.html", &header, &headerSize, &body, &bodySize, 50000);
+    if (err != TS_ERR_OKAY) {
+      print_err("TSReadFromUrlEx", err);
+    } else {
+      printf("--------------------------------------------------------------\n");
+      //  printf("The header...\n%s\n%d\n", *header, *headerSize);
+      printf("--------------------------------------------------------------\n");
+      printf("The body...\n%s\n%d\n", body, bodySize);
+    }
+    if (body)
+      TSfree(body);
+    if (header)
+      TSfree(header);
+
+    err = TSReadFromUrlEx("http://sadfasdfi.com:80/", &header, &headerSize, &body, &bodySize, 50000);
+    if (err != TS_ERR_OKAY) {
+      print_err("TSReadFromUrlEx", err);
+    } else {
+      printf("---------------------------------------------------------------\n");
+      printf("The header...\n%s\n%d\n", header, headerSize);
+      printf("-------------------------------------------------------------\n");
+      printf("The body...\n%s\n%d\n", body, bodySize);
+    }
+    if (header)
+      TSfree(header);
+    if (body)
+      TSfree(body);
+
+  } else {                      // use valid urls
+    err = TSReadFromUrlEx("lakota.example.com:80/", &header, &headerSize, &body, &bodySize, 50000);
+
+    if (err != TS_ERR_OKAY) {
+      print_err("TSReadFromUrlEx", err);
+    } else {
+      printf("---------------------------------------------------------------\n");
+      printf("The header...\n%s\n%d\n", header, headerSize);
+      printf("-------------------------------------------------------------\n");
+      printf("The body...\n%s\n%d\n", body, bodySize);
+    }
+    if (header)
+      TSfree(header);
+    if (body)
+      TSfree(body);
+
+    // read second url
+    err = TSReadFromUrlEx("http://www.apache.org:80/index.html", &header, &headerSize, &body, &bodySize, 50000);
+    if (err != TS_ERR_OKAY) {
+      print_err("TSReadFromUrlEx", err);
+    } else {
+      printf("---------------------------------------------------------------\n");
+      printf("The header...\n%s\n%d\n", header, headerSize);
+      printf("-------------------------------------------------------------\n");
+      printf("The body...\n%s\n%d\n", body, bodySize);
+    }
+    if (header)
+      TSfree(header);
+    if (body)
+      TSfree(body);
+  }
+}
+
+/* ------------------------------------------------------------------------
+ * test_read_file
+ * ------------------------------------------------------------------------
+ * reads hosting.config file and prints it out
+ */
+void
+test_read_file()
+{
+  char *f_text = NULL;
+  int f_size = -1;
+  int f_ver = -1;
+
+  printf("\n");
+  if (TSConfigFileRead(TS_FNAME_HOSTING, &f_text, &f_size, &f_ver) != TS_ERR_OKAY)
+    printf("[TSConfigFileRead] FAILED!\n");
+  else {
+    printf("[TSConfigFileRead]\n\tFile Size=%d, Version=%d\n%s\n", f_size, f_ver, f_text);
+    TSfree(f_text);
+  }
+
+}
+
+/* ------------------------------------------------------------------------
+ * test_write_file
+ * ------------------------------------------------------------------------
+ * writes hosting.config with some garbage text then reads the file and
+ * prints the new file to stdout
+ */
+void
+test_write_file()
+{
+  char *f_text = NULL;
+  int f_size = -1;
+  int f_ver = -1;
+  char new_f_text[] = "blah, blah blah\n I hope this works. please!!!   \n";
+  int new_f_size = strlen(new_f_text);
+
+  printf("\n");
+  if (TSConfigFileWrite(TS_FNAME_HOSTING, new_f_text, new_f_size, -1) != TS_ERR_OKAY)
+    printf("[TSConfigFileWrite] FAILED!\n");
+  else
+    printf("[TSConfigFileWrite] SUCCESS!\n");
+  printf("\n");
+
+  // should free f_text???
+  if (TSConfigFileRead(TS_FNAME_HOSTING, &f_text, &f_size, &f_ver) != TS_ERR_OKAY)
+    printf("[TSConfigFileRead] FAILED!\n");
+  else {
+    printf("[TSConfigFileRead]\n\tFile Size=%d, Version=%d\n%s\n", f_size, f_ver, f_text);
+    TSfree(f_text);
+  }
+}
+
+/***************************************************************************
+ * TSCfgContext Testing
+ ***************************************************************************/
+// tests the TSCfgContextMoveEleUp/Down functions (which end up calling
+// the new "copy" utility functions in CfgContextUtils.cc
+
+// uses TSCfgContextGet to read in a file and print out all the rules
+void
+test_cfg_context_get(char *args)
+{
+  TSCfgContext ctx;
+  TSFileNameT file;
+
+  char *filename = strtok(args, ":");
+  filename = strtok(NULL, ":");
+  fprintf(stderr, "modify file: %s\n", filename);
+  char *name = TSstrdup(filename);
+
+  // convert file name to TSFileNameT
+  if (strcmp(name, "cache.config") == 0) {
+    file = TS_FNAME_CACHE_OBJ;
+  } else if (strcmp(name, "congestion.config") == 0) {
+    file = TS_FNAME_CONGESTION;
+  } else if (strcmp(name, "hosting.config") == 0) {
+    file = TS_FNAME_HOSTING;
+  } else if (strcmp(name, "icp.config") == 0) {
+    file = TS_FNAME_ICP_PEER;
+  } else if (strcmp(name, "ip_allow.config") == 0) {
+    file = TS_FNAME_IP_ALLOW;
+  } else if (strcmp(name, "logs_xml.config") == 0) {
+    file = TS_FNAME_LOGS_XML;
+  } else if (strcmp(name, "parent.config") == 0) {
+    file = TS_FNAME_PARENT_PROXY;
+  } else if (strcmp(name, "volume.config") == 0) {
+    file = TS_FNAME_VOLUME;
+  } else if (strcmp(name, "plugin.config") == 0) {
+    file = TS_FNAME_PLUGIN;
+  } else if (strcmp(name, "remap.config") == 0) {
+    file = TS_FNAME_REMAP;
+  } else if (strcmp(name, "socks.config") == 0) {
+    file = TS_FNAME_SOCKS;
+  } else if (strcmp(name, "storage.config") == 0) {
+    file = TS_FNAME_STORAGE;
+  } else if (strcmp(name, "splitdns.config") == 0) {
+    file = TS_FNAME_SPLIT_DNS;
+  } else if (strcmp(name, "update.config") == 0) {
+    file = TS_FNAME_UPDATE_URL;
+  } else if (strcmp(name, "vaddrs.config") == 0) {
+    file = TS_FNAME_VADDRS;
+  } else {
+    TSfree(name);
+    return;
+  }
+
+  ctx = TSCfgContextCreate(file);
+  if (TSCfgContextGet(ctx) != TS_ERR_OKAY)
+    printf("ERROR READING FILE\n");
+
+  int count = TSCfgContextGetCount(ctx);
+  printf("%d rules in file: %s\n", count, name);
+
+  print_ele_list(file, ctx);
+
+  TSCfgContextDestroy(ctx);
+  TSfree(name);
+  return;
+}
+
+//
+// tests the TSCfgContextMoveEleUp/Down functions (which end up calling
+// the new "copy" utility functions in CfgContextUtils.cc
+// depending on the file specified, this will move the top rule to the bottom,
+// and the second to the last rule to the top
+// essentially, the original top and bottom rules switch places!!
+//
+void
+test_cfg_context_move(char *args)
+{
+  TSCfgContext ctx;
+  TSFileNameT file;
+  int i;
+  TSMgmtError err;
+
+  char *filename = strtok(args, ":");
+  filename = strtok(NULL, ":");
+  fprintf(stderr, "modify file: %s\n", filename);
+  char *name =TSstrdup(filename);
+
+  // convert file name to TSFileNameT
+  if (strcmp(name, "cache.config") == 0) {
+    file = TS_FNAME_CACHE_OBJ;
+  } else if (strcmp(name, "congestion.config") == 0) {
+    file = TS_FNAME_CONGESTION;
+  } else if (strcmp(name, "hosting.config") == 0) {
+    file = TS_FNAME_HOSTING;
+  } else if (strcmp(name, "icp.config") == 0) {
+    file = TS_FNAME_ICP_PEER;
+  } else if (strcmp(name, "ip_allow.config") == 0) {
+    file = TS_FNAME_IP_ALLOW;
+  } else if (strcmp(name, "logs_xml.config") == 0) {
+    file = TS_FNAME_LOGS_XML;
+  } else if (strcmp(name, "parent.config") == 0) {
+    file = TS_FNAME_PARENT_PROXY;
+  } else if (strcmp(name, "volume.config") == 0) {
+    file = TS_FNAME_VOLUME;
+  } else if (strcmp(name, "remap.config") == 0) {
+    file = TS_FNAME_REMAP;
+  } else if (strcmp(name, "socks.config") == 0) {
+    file = TS_FNAME_SOCKS;
+  } else if (strcmp(name, "storage.config") == 0) {
+    file = TS_FNAME_STORAGE;
+  } else if (strcmp(name, "splitdns.config") == 0) {
+    file = TS_FNAME_SPLIT_DNS;
+  } else if (strcmp(name, "update.config") == 0) {
+    file = TS_FNAME_UPDATE_URL;
+  } else if (strcmp(name, "vaddrs.config") == 0) {
+    file = TS_FNAME_VADDRS;
+  } else {
+    TSfree(name);
+    return;
+  }
+
+  ctx = TSCfgContextCreate(file);
+  if (TSCfgContextGet(ctx) != TS_ERR_OKAY)
+    printf("ERROR READING FILE\n");
+
+  int count = TSCfgContextGetCount(ctx);
+  printf("%d rules in file: %s\n", count, name);
+
+  // shift all the ele's up so that the top ele is now the bottom ele
+  printf("\nShift all ele's up so that top ele is now bottom ele\n");
+  for (i = 1; i < count; i++) {
+    err = TSCfgContextMoveEleUp(ctx, i);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR moving ele at index %d up \n", i);
+      goto END;
+    }
+  }
+
+  // shift all the ele's down so that the next to bottom ele is now top ele
+  // move all ele's above the last ele down; bottom ele becomes top ele
+  printf("\nShift all Ele's above second to last ele down; bottom ele becomes top ele\n");
+  for (i = count - 3; i >= 0; i--) {
+    err = TSCfgContextMoveEleDown(ctx, i);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR: moving ele down at index %d\n", i);
+      goto END;
+    }
+  }
+
+  // clean up; commit change
+  TSCfgContextCommit(ctx, NULL, NULL);
+
+END:
+  TSCfgContextDestroy(ctx);
+  TSfree(name);
+  return;
+}
+
+void
+test_cfg_context_ops()
+{
+  // Not used here.
+  //TSCfgIterState iter_state;
+  //TSCfgEle *cfg_ele;
+  TSMgmtError err;
+  TSCfgContext ctx;
+  TSVirtIpAddrEle *ele;
+  int rm_index = 0, i;
+  int insert_at;
+
+  ctx = TSCfgContextCreate(TS_FNAME_VADDRS);
+
+  if (TSCfgContextGet(ctx) != TS_ERR_OKAY)
+    printf("ERROR READING FILE\n");
+
+  printf("\nBEFORE CHANGE:\n");
+  //  print_VirtIpAddr_ele_list(ctx);
+
+  int count = TSCfgContextGetCount(ctx);
+  printf("# ele's = %d\n", count);
+
+  printf("\nShifted all Ele's < %d up\n", rm_index);
+  // move all ele's below rm_index up one; this shifts the rm_index ele to
+  // bottom of TSCfgContext
+  for (i = (rm_index + 1); i < count; i++) {
+    err = TSCfgContextMoveEleUp(ctx, i);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR moving ele at index %d up \n", i);
+      goto END;
+    }
+  }
+  //print_VirtIpAddr_ele_list(ctx);
+
+  printf("\nREMOVE LAST ELE (originally the first ele)\n");
+  // remove the last ele (which was originally the first ele)
+  err = TSCfgContextRemoveEleAt(ctx, (count - 1));
+  if (err != TS_ERR_OKAY) {
+    printf("ERROR: removing ele at index %d\n", count - 1);
+    goto END;
+  }
+
+  printf("\nRemoving second to last Ele \n");
+  err = TSCfgContextRemoveEleAt(ctx, (count - 2));
+  if (err != TS_ERR_OKAY) {
+    printf("ERROR: removing ele at index %d\n", count - 2);
+    goto END;
+  }
+
+  // append a new ele
+  printf("\nappend new ele\n");
+  ele = TSVirtIpAddrEleCreate();
+  if (ele) {
+    ele->ip_addr = TSstrdup("201.201.201.201");
+    ele->intr = TSstrdup("appended");
+    ele->sub_intr = 201;
+    err = TSCfgContextAppendEle(ctx, (TSCfgEle *) ele);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR: append ele\n");
+      TSVirtIpAddrEleDestroy(ele);
+      goto END;
+    }
+  } else {
+    printf("Can't create VirtIpAddrEle\n");
+  }
+  //print_VirtIpAddr_ele_list(ctx);
+
+  insert_at = 1;
+  // insert a new ele in insert_at index
+  printf("\nINSERT NEW ELE at %d index\n", insert_at);
+  ele = TSVirtIpAddrEleCreate();
+  if (ele) {
+    ele->ip_addr = TSstrdup("101.101.101.101");
+    ele->intr = (char *) TSstrdup("inserted");
+    ele->sub_intr = 100;
+    err = TSCfgContextInsertEleAt(ctx, (TSCfgEle *) ele, insert_at);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR: insert ele  at index %d\n", insert_at);
+      TSVirtIpAddrEleDestroy(ele);
+      goto END;
+    }
+  } else {
+    printf("Can't create VirtIpAddrEle\n");
+  }
+  //print_VirtIpAddr_ele_list(ctx);
+
+
+  printf("\nMove ele at index %d to botoom of list\n", insert_at);
+  for (i = insert_at; i < TSCfgContextGetCount(ctx); i++) {
+    err = TSCfgContextMoveEleDown(ctx, i);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR: moving ele down at index %d\n", i);
+      goto END;
+    }
+  }
+  //print_VirtIpAddr_ele_list(ctx);
+
+  printf("\nShift all Ele's above last ele down; bottom ele becomes top ele\n");
+  count = TSCfgContextGetCount(ctx);
+  for (i = count - 2; i >= 0; i--) {
+    err = TSCfgContextMoveEleDown(ctx, i);
+    if (err != TS_ERR_OKAY) {
+      printf("ERROR: moving ele down at index %d\n", i);
+      goto END;
+    }
+  }
+  //print_VirtIpAddr_ele_list(ctx);
+
+
+  // commit change
+  TSCfgContextCommit(ctx, NULL, NULL);
+
+  printf("\nAFTER CHANGE:\n");
+  //print_VirtIpAddr_ele_list(ctx);
+
+END:
+  TSCfgContextDestroy(ctx);
+
+}
+
+/* ------------------------------------------------------------------------
+ * test_cfg_plugin
+ * ------------------------------------------------------------------------
+ * Gets all the Ele's from plugin.config, modifies them, and commits the changes
+ * to file
+ */
+void
+test_cfg_plugin()
+{
+  // Not used here.
+  //TSCfgIterState iter_state;
+  TSCfgContext ctx;
+  TSCfgEle *cfg_ele;
+  TSPluginEle *ele;
+
+  ctx = TSCfgContextCreate(TS_FNAME_PLUGIN);
+  if (TSCfgContextGet(ctx) != TS_ERR_OKAY)
+    printf("ERROR READING FILE\n");
+
+  // retrieve and modify ele
+  printf("test_cfg_plugin: modifying the first ele...\n");
+  cfg_ele = TSCfgContextGetEleAt(ctx, 0);
+  ele = (TSPluginEle *) cfg_ele;
+  if (ele) {
+    //free(ele->name);
+    ele->name = ats_strdup("change-plugin.so");
+  }
+
+  // remove the second ele
+  printf("test_cfg_plugin: removing the second ele...\n");
+  TSCfgContextRemoveEleAt(ctx, 1);
+
+  // create and add new ele
+  printf("test_socks_set: appending a new ele...\n");
+  ele = TSPluginEleCreate();
+
+  ele->name = ats_strdup("new-plugin.so");
+
+  ele->args = TSStringListCreate();
+  TSStringListEnqueue(ele->args, ats_strdup("arg1"));
+  TSStringListEnqueue(ele->args, ats_strdup("arg2"));
+  TSCfgContextAppendEle(ctx, (TSCfgEle *) ele);
+
+  // commit change
+  TSCfgContextCommit(ctx, NULL, NULL);
+
+  TSCfgContextDestroy(ctx);
+
+}
+
+/* ------------------------------------------------------------------------
+ * test_cfg_socks
+ * ------------------------------------------------------------------------
+ * Gets all the Ele's from socks, modifies them, and commits the changes
+ * to file
+ */
+void
+test_cfg_socks()
+{
+  // Not used here.
+  //TSCfgIterState iter_state;
+  TSCfgContext ctx;
+  TSCfgEle *cfg_ele;
+  TSSocksEle *ele;
+
+  ctx = TSCfgContextCreate(TS_FNAME_SOCKS);
+  if (TSCfgContextGet(ctx) != TS_ERR_OKAY)
+    printf("ERROR READING FILE\n");
+
+  // retrieving an ele
+  printf("test_socks_set: modifying the fourth ele...\n");
+  cfg_ele = TSCfgContextGetEleAt(ctx, 3);
+  ele = (TSSocksEle *) cfg_ele;
+  if (ele) {
+    if (ele->rr != TS_RR_NONE)
+      ele->rr = TS_RR_FALSE;
+  }
+
+  // remove the second ele
+  printf("test_socks_set: removing the second ele...\n");
+  TSCfgContextRemoveEleAt(ctx, 1);
+
+  // create new structs for new rules
+  TSIpAddrEle *ip1 = TSIpAddrEleCreate();
+  ip1->type = TS_IP_SINGLE;
+  ip1->ip_a = TSstrdup("1.1.1.1");
+
+  TSDomainList dlist = TSDomainListCreate();
+  TSDomain *dom1 = TSDomainCreate();
+  dom1->domain_val = TSstrdup("www.mucky.com");
+  dom1->port = 8888;
+  TSDomainListEnqueue(dlist, dom1);
+
+  TSDomain *dom2 = TSDomainCreate();
+  dom2->domain_val = TSstrdup("freakazoid.com");
+  dom2->port = 2222;
+  TSDomainListEnqueue(dlist, dom2);
+
+  TSDomain *dom3 = TSDomainCreate();
+  dom3->domain_val = TSstrdup("hong.kong.com");
+  dom3->port = 3333;
+  TSDomainListEnqueue(dlist, dom3);
+
+  // create and add new ele
+  printf("test_socks_set: appending a new ele...\n");
+  ele = TSSocksEleCreate(TS_TYPE_UNDEFINED);
+  if (ele) {
+    ele->cfg_ele.type = TS_SOCKS_MULTIPLE;
+    ele->dest_ip_addr = ip1;
+    ele->socks_servers = dlist;
+    ele->rr = TS_RR_STRICT;
+
+    TSCfgContextAppendEle(ctx, (TSCfgEle *) ele);
+  } else {
+    printf("Can't create SocksEle\n");
+  }
+
+  // commit change
+  TSCfgContextCommit(ctx, NULL, NULL);
+
+  TSCfgContextDestroy(ctx);
+}
+
+
+
+/***************************************************************************
+ * Events Testing
+ ***************************************************************************/
+/* ------------------------------------------------------------------------
+ * print_active_events
+ * ------------------------------------------------------------------------
+ * retrieves a list of all active events and prints out each event name,
+ * one event per line
+ */
+void
+print_active_events()
+{
+  TSList events;
+  TSMgmtError ret;
+  int count, i;
+  char *name;
+
+  printf("[print_active_events]\n");
+
+  events = TSListCreate();
+  ret = TSActiveEventGetMlt(events);
+  if (ret != TS_ERR_OKAY) {
+    print_err("TSActiveEventGetMlt", ret);
+    goto END;
+  } else {                      // successful get
+    count = TSListLen(events);
+    for (i = 0; i < count; i++) {
+      name = (char *) TSListDequeue(events);
+      printf("\t%s\n", name);
+      TSfree(name);
+    }
+  }
+
+END:
+  TSListDestroy(events);
+  return;
+}
+
+/* ------------------------------------------------------------------------
+ * check_active
+ * ------------------------------------------------------------------------
+ * returns true if the event named event_name is currently active (unresolved)
+ * returns false otherwise
+ */
+bool
+check_active(char *event_name)
+{
+  bool active;
+  TSMgmtError ret;
+
+  ret = TSEventIsActive(event_name, &active);
+  print_err("TSEventIsActive", ret);
+
+  if (active)
+    printf("%s is ACTIVE\n", event_name);
+  else
+    printf("%s is NOT-ACTIVE\n", event_name);
+
+  return active;
+}
+
+/* ------------------------------------------------------------------------
+ * try_resolve
+ * ------------------------------------------------------------------------
+ * checks if the event_name is still unresolved; if it is, it then
+ * resolves it, and checks the status of the event again to make sure
+ * the event was actually resolved
+ *
+ * NOTE: all the special string manipulation is needed because the CLI
+ * appends extra newline character to end of the user input; normally
+ * do not have to do all this special string manipulation
+ */
+void
+try_resolve(char *event_name)
+{
+  TSMgmtError ret;
+  char *name;
+
+  name = TSstrdup(event_name);
+  printf("[try_resolve] Resolving event: %s\n", name);
+
+  if (check_active(name)) {     // resolve events
+    ret = TSEventResolve(name);
+    print_err("TSEventResolve", ret);
+    check_active(name);         // should be non-active now
+  }
+
+  TSfree(name);
+}
+
+/* ------------------------------------------------------------------------
+ * eventCallbackFn
+ * ------------------------------------------------------------------------
+ * the callback function; when called, it just prints out the name
+ * of the event that was signalled
+ */
+void
+eventCallbackFn(char *name, char *msg, int /* pri ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  printf("[eventCallbackFn] EVENT: %s, %s\n", name, msg);
+  return;
+}
+
+/* ------------------------------------------------------------------------
+ * register_event_callback
+ * ------------------------------------------------------------------------
+ * registers the eventCallbackFn above for all events; this just means
+ * that for any event that's signalled, the callback fn will also be called
+ */
+void
+register_event_callback(void)
+{
+  TSMgmtError err;
+
+  printf("\n[register_event_callback] \n");
+  err = TSEventSignalCbRegister(NULL, eventCallbackFn, NULL);
+  print_err("TSEventSignalCbRegister", err);
+}
+
+/* ------------------------------------------------------------------------
+ * unregister_event_callback
+ * ------------------------------------------------------------------------
+ * unregisters the eventCallbackFn above for all events; this just means
+ * that it will remove this eventCallbackFn entirely so that for any
+ * event called, the eventCallbackFn will NOT be called
+ */
+void
+unregister_event_callback(void)
+{
+  TSMgmtError err;
+
+  printf("\n[unregister_event_callback]\n");
+  err = TSEventSignalCbUnregister(NULL, eventCallbackFn);
+  print_err("TSEventSignalCbUnregister", err);
+}
+
+/***************************************************************************
+ * Snapshots Testing
+ ***************************************************************************/
+
+void
+print_snapshots()
+{
+  TSStringList list;
+  TSMgmtError err;
+  char *name;
+
+  list = TSStringListCreate();
+  err = TSSnapshotGetMlt(list);
+  print_err("TSSnapshotGetMlt", err);
+
+  printf("All Snapshots:\n");
+  if (err == TS_ERR_OKAY) {
+    int num = TSStringListLen(list);
+    for (int i = 0; i < num; i++) {
+      name = TSStringListDequeue(list);
+      if (name)
+        printf("%s\n", name);
+      TSfree(name);
+    }
+  }
+
+  TSStringListDestroy(list);
+  return;
+}
+
+void
+add_snapshot(char *args)
+{
+  char *snap_name = strtok(args, ":");
+  snap_name = strtok(NULL, ":");
+  fprintf(stderr, "add snapshot: %s\n", snap_name);
+  char *name = TSstrdup(snap_name);
+
+  TSMgmtError err = TSSnapshotTake(name);
+  print_err("TSSnapshotTake", err);
+
+  TSfree(name);
+}
+
+void
+remove_snapshot(char *args)
+{
+  char *snap_name = strtok(args, ":");
+  snap_name = strtok(NULL, ":");
+  fprintf(stderr, "remove snapshot: %s\n", snap_name);
+  char *name = TSstrdup(snap_name);
+
+  TSMgmtError err = TSSnapshotRemove(name);
+  print_err("TSSnapshotRemove", err);
+
+  TSfree(name);
+}
+
+void
+restore_snapshot(char *args)
+{
+  char *snap_name = strtok(args, ":");
+  snap_name = strtok(NULL, ":");
+  fprintf(stderr, "resotre snapshot: %s\n", snap_name);
+  char *name = TSstrdup(snap_name);
+
+  TSMgmtError err = TSSnapshotRestore(name);
+  print_err("TSSnapshotRestore", err);
+
+  TSfree(name);
+}
+
+/***************************************************************************
+ * Diags Testing
+ ***************************************************************************/
+
+void
+test_diags()
+{
+  // status
+  for (int i = 0; i < 5; i++) {
+    TSDiags(TS_DIAG_STATUS, "[remote]status diag %d", i);
+  }
+
+  // warning
+  TSDiags(TS_DIAG_WARNING, "[remote]warning msg %s %s", "I am", "a fiue");
+
+  // fatal
+  TSDiags(TS_DIAG_FATAL, "[remote]FATAL, FATAL: Nuclear meltdown in %d seconds", 10);
+
+  // error
+  TSDiags(TS_DIAG_ERROR, "[remote]error msg shouldn't have printed this %s", "argument");
+
+  // debug
+  TSDiags(TS_DIAG_DEBUG, "[remote]debug ... wish I was good at it");
+
+}
+
+/***************************************************************************
+ * Statistics
+ ***************************************************************************/
+
+// generate dummy values for statistics
+void
+set_stats()
+{
+  TSActionNeedT action;
+
+  fprintf(stderr, "[set_stats] Set Dummy Stat Values\n");
+
+
+  TSRecordSetInt("proxy.process.http.user_agent_response_document_total_size", 100, &action);
+  TSRecordSetInt("proxy.process.http.user_agent_response_header_total_size", 100, &action);
+  TSRecordSetInt("proxy.process.http.current_client_connections", 100, &action);
+  TSRecordSetInt("proxy.process.http.current_client_transactions", 100, &action);
+  TSRecordSetInt("proxy.process.http.origin_server_response_document_total_size", 100, &action);
+  TSRecordSetInt("proxy.process.http.origin_server_response_header_total_size", 100, &action);
+  TSRecordSetInt("proxy.process.http.current_server_connections", 100, &action);
+  TSRecordSetInt("proxy.process.http.current_server_transactions", 100, &action);
+
+
+  TSRecordSetFloat("proxy.node.bandwidth_hit_ratio", 110, &action);
+  TSRecordSetFloat("proxy.node.hostdb.hit_ratio", 110, &action);
+  TSRecordSetFloat("proxy.node.cache.percent_free", 110, &action);
+  TSRecordSetFloat("proxy.node.cache_hit_ratio", 110, &action);
+  TSRecordSetFloat("proxy.node.cache_hit_mem_ratio", 110, &action);
+  TSRecordSetFloat("proxy.node.bandwidth_hit_ratio_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.node.http.cache_hit_fresh_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.node.http.cache_hit_mem_fresh_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.node.http.cache_hit_revalidated_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.node.http.cache_hit_ims_avg_10s", 100, &action);
+  TSRecordSetFloat("proxy.node.client_throughput_out", 110, &action);
+
+  TSRecordSetInt("proxy.node.cache_hit_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.node.cache_hit_mem_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.node.bandwidth_hit_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.node.hostdb.hit_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.node.proxy_running", 110, &action);
+  TSRecordSetInt("proxy.node.hostdb.hit_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.node.proxy_running", 110, &action);
+  TSRecordSetInt("proxy.node.current_client_connections", 110, &action);
+  TSRecordSetInt("proxy.node.current_cache_connections", 110, &action);
+
+  TSRecordSetFloat("proxy.cluster.user_agent_total_bytes_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.cluster.origin_server_total_bytes_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.cluster.bandwidth_hit_ratio", 110, &action);
+  TSRecordSetFloat("proxy.cluster.bandwidth_hit_ratio_avg_10s", 110, &action);
+  TSRecordSetFloat("proxy.cluster.cache_hit_ratio", 110, &action);
+  TSRecordSetFloat("proxy.cluster.cache_hit_mem_ratio", 110, &action);
+
+  TSRecordSetInt("proxy.cluster.cache_hit_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.cluster.cache_hit_mem_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.cluster.bandwidth_hit_ratio_int_pct", 110, &action);
+  TSRecordSetInt("proxy.cluster.cache_total_hits", 110, &action);
+  TSRecordSetInt("proxy.cluster.cache_total_hits_mem", 110, &action);
+  TSRecordSetInt("proxy.cluster.cache_total_misses", 110, &action);
+  TSRecordSetInt("proxy.cluster.http.throughput", 110, &action);
+}
+
+void
+print_stats()
+{
+  TSFloat f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11;
+  TSInt i1, i2, i3, i4, i5, i6, i7, i8, i9;
+
+  fprintf(stderr, "[print_stats]\n");
+
+
+  TSRecordGetInt("proxy.process.http.user_agent_response_document_total_size", &i1);
+  TSRecordGetInt("proxy.process.http.user_agent_response_header_total_size", &i2);
+  TSRecordGetInt("proxy.process.http.current_client_connections", &i3);
+  TSRecordGetInt("proxy.process.http.current_client_transactions", &i4);
+  TSRecordGetInt("proxy.process.http.origin_server_response_document_total_size", &i5);
+  TSRecordGetInt("proxy.process.http.origin_server_response_header_total_size", &i6);
+  TSRecordGetInt("proxy.process.http.current_server_connections", &i7);
+  TSRecordGetInt("proxy.process.http.current_server_transactions", &i8);
+
+  fprintf(stderr, "%" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 "\n", i1, i2, i3, i4, i5, i6, i7, i8);
+
+  TSRecordGetFloat("proxy.node.bandwidth_hit_ratio", &f1);
+  TSRecordGetFloat("proxy.node.hostdb.hit_ratio", &f2);
+  TSRecordGetFloat("proxy.node.cache.percent_free", &f3);
+  TSRecordGetFloat("proxy.node.cache_hit_ratio", &f4);
+  TSRecordGetFloat("proxy.node.cache_hit_mem_ratio", &f10);
+  TSRecordGetFloat("proxy.node.bandwidth_hit_ratio_avg_10s", &f5);
+  TSRecordGetFloat("proxy.node.http.cache_hit_fresh_avg_10s", &f6);
+  TSRecordGetFloat("proxy.node.http.cache_hit_mem_fresh_avg_10s", &f11);
+  TSRecordGetFloat("proxy.node.http.cache_hit_revalidated_avg_10s", &f7);
+  TSRecordGetFloat("proxy.node.http.cache_hit_ims_avg_10s", &f8);
+  TSRecordGetFloat("proxy.node.client_throughput_out", &f9);
+
+  fprintf(stderr, "NODE stats: \n%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f\n",
+          f1, f2, f3, f4, f10, f5, f6, f11, f7, f8, f9);
+
+  TSRecordGetInt("proxy.node.cache_hit_ratio_int_pct", &i1);
+  TSRecordGetInt("proxy.node.cache_hit_mem_ratio_int_pct", &i7);
+  TSRecordGetInt("proxy.node.bandwidth_hit_ratio_int_pct", &i2);
+  TSRecordGetInt("proxy.node.hostdb.hit_ratio_int_pct", &i3);
+  TSRecordGetInt("proxy.node.proxy_running", &i4);
+  TSRecordGetInt("proxy.node.hostdb.hit_ratio_int_pct", &i5);
+  TSRecordGetInt("proxy.node.proxy_running", &i6);
+  TSRecordGetInt("proxy.node.current_client_connections", &i8);
+  TSRecordGetInt("proxy.node.current_cache_connections", &i9);
+
+  fprintf(stderr, "%" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 "\n",
+          i1, i7, i2, i3, i4, i5, i6, i8, i9);
+
+  TSRecordGetFloat("proxy.cluster.user_agent_total_bytes_avg_10s", &f1);
+  TSRecordGetFloat("proxy.cluster.origin_server_total_bytes_avg_10s", &f2);
+  TSRecordGetFloat("proxy.cluster.bandwidth_hit_ratio", &f3);
+  TSRecordGetFloat("proxy.cluster.bandwidth_hit_ratio_avg_10s", &f4);
+  TSRecordGetFloat("proxy.cluster.cache_hit_ratio", &f5);
+  TSRecordGetFloat("proxy.cluster.cache_hit_mem_ratio", &f6);
+
+  TSRecordGetInt("proxy.cluster.cache_hit_ratio_int_pct", &i1);
+  TSRecordGetInt("proxy.cluster.cache_hit_mem_ratio_int_pct", &i6);
+  TSRecordGetInt("proxy.cluster.bandwidth_hit_ratio_int_pct", &i2);
+  TSRecordGetInt("proxy.cluster.cache_total_hits", &i3);
+  TSRecordGetInt("proxy.cluster.cache_total_hits_mem", &i7);
+  TSRecordGetInt("proxy.cluster.cache_total_misses", &i4);
+  TSRecordGetInt("proxy.cluster.http.throughput", &i5);
+
+  fprintf(stderr, "CLUSTER stats: \n");
+  fprintf(stderr, "%f, %f, %f, %f, %f, %f\n", f1, f2, f3, f4, f5, f6);
+  fprintf(stderr, "%" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 "\n", i1, i6, i2, i3, i7, i4, i5);
+
+  fprintf(stderr, "PROCESS stats: \n");
+  fprintf(stderr, "%f, %f\n", f1, f2);
+  fprintf(stderr, "%" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 "\n", i1, i2, i3, i4);
+
+}
+
+void
+reset_stats()
+{
+  TSMgmtError err = TSStatsReset(false, NULL);
+  print_err("TSStatsReset", err);
+  return;
+}
+
+void
+sync_test()
+{
+  TSActionNeedT action;
+
+  TSRecordSetString("proxy.config.proxy_name", "dorkface", &action);
+  printf("[TSRecordSetString] proxy.config.proxy_name \n\tAction Should: [%d]\n\tAction is    : [%d]\n",
+         TS_ACTION_UNDEFINED, action);
+
+  TSRecordSetInt("proxy.config.cluster.cluster_port", 3333, &action);
+  printf("[TSRecordSetInt] proxy.config.cluster.cluster_port\n\tAction Should: [%d]\n\tAction is    : [%d]\n",
+         TS_ACTION_RESTART, action);
+
+  if (TSRecordSet("proxy.config.http.cache.fuzz.probability", "-0.3333", &action) != TS_ERR_OKAY)
+    printf("TSRecordSet FAILED!\n");
+  else
+    printf("[TSRecordSet] proxy.config.http.cache.fuzz.probability=-0.3333\n");
+
+  TSMgmtError ret;
+  if ((ret = TSProxyStateSet(TS_PROXY_OFF, TS_CACHE_CLEAR_OFF)) != TS_ERR_OKAY)
+    printf("[TSProxyStateSet] turn off FAILED\n");
+  print_err("stop_TS", ret);
+}
+
+/* ########################################################################*/
+/* ------------------------------------------------------------------------
+ * runInteractive
+ * ------------------------------------------------------------------------
+ * the loop that processes the commands inputted by user
+ */
+static void
+runInteractive()
+{
+  char buf[512];                // holds request from interactive prompt
+
+  // process input from command line
+  while (1) {
+    // Display a prompt
+    printf("api_cli-> ");
+
+    // get input from command line
+    ATS_UNUSED_RETURN(fgets(buf, 512, stdin));
+
+    // check status of 'stdin' after reading
+    if (feof(stdin) != 0) {
+      printf("EXIT api_cli_remote\n");
+      return;
+    } else if (ferror(stdin) != 0) {
+      printf("EXIT api_cli_remote\n");
+      return;
+    }
+    // continue on newline
+    if (strcmp(buf, "\n") == 0) {
+      continue;
+    }
+    // exiting/quitting?
+    if (strcasecmp("quit\n", buf) == 0 || strcasecmp("exit\n", buf) == 0) {
+      // Don't wait for response LM
+      //exit(0);
+      return;
+    }
+    // check what operation user typed in
+    if (strstr(buf, "state")) {
+      print_proxy_state();
+    } else if (strncmp(buf, "start", 5) == 0) {
+      start_TS(buf);
+    } else if (strstr(buf, "stop")) {
+      stop_TS();
+    } else if (strstr(buf, "restart")) {
+      restart();
+    } else if (strstr(buf, "reconfig")) {
+      reconfigure();
+    } else if (strstr(buf, "records")) {
+      test_records();
+    } else if (strstr(buf, "err_recs")) {
+      test_error_records();
+    } else if (strstr(buf, "get_mlt")) {
+      test_record_get_mlt();
+    } else if (strstr(buf, "set_mlt")) {
+      test_record_set_mlt();
+    } else if (strstr(buf, "read_file")) {
+      test_read_file();
+    } else if (strstr(buf, "write_file")) {
+      test_write_file();
+    } else if (strstr(buf, "proxy.")) {
+      test_rec_get(buf);
+    } else if (strstr(buf, "active_events")) {
+      print_active_events();
+    } else if (strstr(buf, "MGMT_ALARM_")) {
+      try_resolve(buf);
+    } else if (strncmp(buf, "register", 8) == 0) {
+      register_event_callback();
+    } else if (strstr(buf, "unregister")) {
+      unregister_event_callback();
+    } else if (strstr(buf, "snapshots")) {
+      print_snapshots();
+    } else if (strstr(buf, "take_snap")) {
+      add_snapshot(buf);
+    } else if (strstr(buf, "remove_snap")) {
+      remove_snapshot(buf);
+    } else if (strstr(buf, "restore_snap")) {
+      restore_snapshot(buf);
+    } else if (strstr(buf, "diags")) {
+      test_diags();
+    } else if (strstr(buf, "read_url")) {
+      test_read_url(true);
+    } else if (strstr(buf, "test_url")) {
+      test_read_url(false);
+    } else if (strstr(buf, "cfg_get:")) {
+      test_cfg_context_get(buf);
+    } else if (strstr(buf, "cfg:")) {
+      test_cfg_context_move(buf);
+    } else if (strstr(buf, "cfg_context")) {
+      test_cfg_context_ops();
+    } else if (strstr(buf, "cfg_socks")) {
+      test_cfg_socks();
+    } else if (strstr(buf, "cfg_plugin")) {
+      test_cfg_plugin();
+    } else if (strstr(buf, "reset_stats")) {
+      reset_stats();
+    } else if (strstr(buf, "set_stats")) {
+      set_stats();
+    } else if (strstr(buf, "print_stats")) {
+      print_stats();
+    } else {
+      sync_test();
+    }
+
+
+
+
+  }                             // end while(1)
+
+}                               // end runInteractive
+
+
+/* ------------------------------------------------------------------------
+ * main
+ * ------------------------------------------------------------------------
+ * Main entry point which connects the client to the API, does any
+ * clean up on exit, and gets the interactive command-line running
+ */
+int
+main(int /* argc ATS_UNUSED */, char ** /* argv ATS_UNUSED */)
+{
+  TSMgmtError ret;
+
+  if ((ret = TSInit(NULL, TS_MGMT_OPT_DEFAULTS)) == TS_ERR_OKAY) {
+    runInteractive();
+    TSTerminate();
+    printf("END REMOTE API TEST\n");
+  } else {
+    print_err("main", ret);
+  }
+
+  return 0;
+}                               // end main()
diff --git a/mgmt/api/CfgContextDefs.h b/mgmt/api/CfgContextDefs.h
new file mode 100644
index 00000000..ea1a4663
--- /dev/null
+++ b/mgmt/api/CfgContextDefs.h
@@ -0,0 +1,74 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ * Type Definitions
+ ***************************************************************************/
+#ifndef _MGMT_API_DEFS_
+#define _MGMT_API_DEFS_
+
+#include "mgmtapi.h"
+#include "ink_llqueue.h"
+
+// for buffer used temporarily to parse incoming commands.
+#ifndef MAX_BUF_SIZE
+#define MAX_BUF_SIZE 4098
+#endif
+
+#ifndef MAX_FILE_SIZE
+#define MAX_FILE_SIZE 4098
+#endif
+
+#ifndef MAX_RULE_SIZE
+#define MAX_RULE_SIZE 1024
+#endif
+
+#define NUM_SEC_SPECS 8
+
+#define DELIMITER            '#'
+#define DELIMITER_STR        "#"
+#define RANGE_DELIMITER      '-'
+#define RANGE_DELIMITER_STR  "- "
+#define CIDR_DELIMITER       '/'
+#define CIDR_DELIMITER_STR   "/"
+#define IP_END_DELIMITER     "#"
+#define LIST_DELIMITER       ", "
+
+/* Each opaque List handle in the mgmtapi should have
+ * a corresponding typedef here. Using LLQ's to implement the
+ * lists
+ */
+typedef LLQ PortList;
+typedef LLQ IpAddrList;
+typedef LLQ DomainList;
+typedef LLQ StringList;
+
+/* INKCommentEle only used internally by the CfgContext */
+/* should this be defined in CfgContextUtils.h ?? */
+typedef struct
+{
+  TSCfgEle cfg_ele;
+  char *comment;
+} INKCommentEle;
+
+#endif
diff --git a/mgmt/api/CfgContextImpl.cc b/mgmt/api/CfgContextImpl.cc
new file mode 100644
index 00000000..61439da4
--- /dev/null
+++ b/mgmt/api/CfgContextImpl.cc
@@ -0,0 +1,2592 @@
+/** @file
+
+  Implementation of CfgContext class and all the CfgEleObj subclasses
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "libts.h"
+#include "ink_platform.h"
+
+#include "CfgContextImpl.h"
+#include "CfgContextUtils.h"
+#include "mgmtapi.h"
+
+//--------------------------------------------------------------------------
+// Defines
+//--------------------------------------------------------------------------
+
+#define TIGHT_RULE_CHECK true
+
+//--------------------------------------------------------------------------
+// CommentObj
+//--------------------------------------------------------------------------
+CommentObj::CommentObj(char *comment)
+{
+  m_ele = comment_ele_create(comment);
+  m_valid = (comment ? true : false);
+}
+
+CommentObj::~CommentObj()
+{
+  comment_ele_destroy(m_ele);
+}
+
+char *
+CommentObj::formatEleToRule()
+{
+  return ats_strdup(m_ele->comment);
+}
+
+bool CommentObj::isValid()
+{
+  return m_valid;
+}
+
+TSCfgEle *
+CommentObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_comment_ele(m_ele);
+}
+
+
+//--------------------------------------------------------------------------
+// CacheObj
+//--------------------------------------------------------------------------
+CacheObj::CacheObj(TSCacheEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+// assumes the specifiers are specified in specific order!!
+CacheObj::CacheObj(TokenList * tokens)
+{
+  Token *tok;
+  m_ele = TSCacheEleCreate(TS_TYPE_UNDEFINED);
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_CACHE_OBJ);
+
+  // if any invalid values, set m_valid=false
+  // convert token name and value into ele field
+  tok = tokens->first();
+  tok = tokens_to_pdss_format(tokens, tok, &(m_ele->cache_info));
+
+  if (!tok) {                   // INVALID FORMAT
+    goto FORMAT_ERR;
+  }
+
+  tok = tokens->next(tok);
+  if (m_ele->cfg_ele.type == TS_CACHE_REVALIDATE ||
+      m_ele->cfg_ele.type == TS_CACHE_PIN_IN_CACHE || m_ele->cfg_ele.type == TS_CACHE_TTL_IN_CACHE) {
+    // must have a time specified
+    if (strcmp(tok->name, "pin-in-cache") != 0 && strcmp(tok->name, "revalidate") != 0 &&
+        strcmp(tok->name, "ttl-in-cache") != 0) {
+      goto FORMAT_ERR;          // wrong token!!
+    }
+    if (string_to_hms_time(tok->value, &(m_ele->time_period)) != TS_ERR_OKAY) {
+      goto FORMAT_ERR;
+    }
+  }
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+CacheObj::~CacheObj()
+{
+  TSCacheEleDestroy(m_ele);
+}
+
+char *
+CacheObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char *pd_str, *time_str;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  pd_str = pdest_sspec_to_string(m_ele->cache_info.pd_type, m_ele->cache_info.pd_val, &(m_ele->cache_info.sec_spec));
+  if (!pd_str) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+  ink_strlcat(buf, pd_str, sizeof(buf));
+  ats_free(pd_str);
+
+  switch (m_ele->cfg_ele.type) {
+  case TS_CACHE_NEVER:
+    ink_strlcat(buf, "action=never-cache ", sizeof(buf));
+    break;
+  case TS_CACHE_IGNORE_NO_CACHE:
+    ink_strlcat(buf, "action=ignore-no-cache ", sizeof(buf));
+    break;
+  case TS_CACHE_CLUSTER_CACHE_LOCAL:
+    ink_strlcat(buf, "action=cluster-cache-local ", sizeof(buf));
+    break;
+  case TS_CACHE_IGNORE_CLIENT_NO_CACHE:
+    ink_strlcat(buf, "action=ignore-client-no-cache ", sizeof(buf));
+    break;
+  case TS_CACHE_IGNORE_SERVER_NO_CACHE:
+    ink_strlcat(buf, "action=ignore-server-no-cache ", sizeof(buf));
+    break;
+  case TS_CACHE_AUTH_CONTENT:
+    ink_strlcat(buf, "action=cache-auth-content ", sizeof(buf));
+    break;
+  case TS_CACHE_PIN_IN_CACHE:
+    ink_strlcat(buf, "pin-in-cache=", sizeof(buf));
+    time_str = hms_time_to_string(m_ele->time_period);
+    if (time_str) {
+      ink_strlcat(buf, time_str, sizeof(buf));
+      ats_free(time_str);
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+    break;
+  case TS_CACHE_REVALIDATE:
+    ink_strlcat(buf, "revalidate=", sizeof(buf));
+    time_str = hms_time_to_string(m_ele->time_period);
+    if (time_str) {
+      ink_strlcat(buf, time_str, sizeof(buf));
+      ats_free(time_str);
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+    break;
+  case TS_CACHE_TTL_IN_CACHE:
+    ink_strlcat(buf, "ttl-in-cache=", sizeof(buf));
+    time_str = hms_time_to_string(m_ele->time_period);
+    if (time_str) {
+      ink_strlcat(buf, time_str, sizeof(buf));
+      ats_free(time_str);
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // Lots of cases...
+    break;
+  }
+
+  return ats_strdup(buf);
+}
+
+bool CacheObj::isValid()
+{
+  char *
+    timeStr;
+
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // all Cache Ele's should have a prim dest, sec specs are optional
+  if (!ccu_checkPdSspec(m_ele->cache_info)) {
+    m_valid = false;
+  }
+  // only pin-in-cache, ttl, and revalidate rules have time period
+  switch (m_ele->cfg_ele.type) {
+  case TS_CACHE_NEVER:
+  case TS_CACHE_IGNORE_NO_CACHE:
+  case TS_CACHE_CLUSTER_CACHE_LOCAL:
+  case TS_CACHE_IGNORE_CLIENT_NO_CACHE:
+  case TS_CACHE_IGNORE_SERVER_NO_CACHE:
+  case TS_CACHE_AUTH_CONTENT:
+    break;
+  case TS_CACHE_PIN_IN_CACHE:
+  case TS_CACHE_REVALIDATE:
+  case TS_CACHE_TTL_IN_CACHE:
+    timeStr = hms_time_to_string(m_ele->time_period);
+    if (!timeStr) {
+      m_valid = false;
+    }
+    ats_free(timeStr);
+  default:
+    // Handled here:
+    // Lots of cases ...
+    break;
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+CacheObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_cache_ele(m_ele);
+}
+
+
+//--------------------------------------------------------------------------
+// CongestionObj
+//--------------------------------------------------------------------------
+CongestionObj::CongestionObj(TSCongestionEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+CongestionObj::CongestionObj(TokenList * tokens)
+{
+  Token *tok;
+  m_ele = TSCongestionEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_CONGESTION);
+
+  // if any invalid values, set m_valid=false
+  // convert token name and value into ele field
+  tok = tokens->first();
+  //tok = tokens_to_pdss_format(tokens, tok, &(m_ele->congestion_info));
+
+  if (!tok) {                   // INVALID FORMAT
+    goto FORMAT_ERR;
+  }
+
+  if (strcmp(tok->name, "dest_domain") == 0) {
+    m_ele->pd_type = TS_PD_DOMAIN;
+  } else if (strcmp(tok->name, "dest_host") == 0) {
+    m_ele->pd_type = TS_PD_HOST;
+  } else if (strcmp(tok->name, "dest_ip") == 0) {
+    m_ele->pd_type = TS_PD_IP;
+  } else if (strcmp(tok->name, "host_regex") == 0) {
+    m_ele->pd_type = TS_PD_URL_REGEX;
+  }
+  m_ele->pd_val = ats_strdup(tok->value);
+
+  // check for remaining tags
+  tok = tokens->next(tok);
+  while (tok) {
+    if (!tok->name || !tok->value) {
+      goto FORMAT_ERR;
+    }
+    if (strcmp(tok->name, "prefix") == 0) {
+      m_ele->prefix = ats_strdup(tok->value);
+    } else if (strcmp(tok->name, "port") == 0) {
+      m_ele->port = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "congestion_scheme") == 0) {
+      if (strcmp(tok->value, "per_ip") == 0) {
+        m_ele->scheme = TS_HTTP_CONGEST_PER_IP;
+      } else if (strcmp(tok->value, "per_host") == 0) {
+        m_ele->scheme = TS_HTTP_CONGEST_PER_HOST;
+      } else {
+        goto FORMAT_ERR;
+      }
+    } else if (strcmp(tok->name, "max_connection_failures") == 0) {
+      m_ele->max_connection_failures = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "fail_window") == 0) {
+      m_ele->fail_window = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "proxy_retry_interval") == 0) {
+      m_ele->proxy_retry_interval = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "client_wait_interval") == 0) {
+      m_ele->client_wait_interval = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "wait_interval_alpha") == 0) {
+      m_ele->wait_interval_alpha = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "live_os_conn_timeout") == 0) {
+      m_ele->live_os_conn_timeout = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "live_os_conn_retries") == 0) {
+      m_ele->live_os_conn_retries = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "dead_os_conn_timeout") == 0) {
+      m_ele->dead_os_conn_timeout = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "dead_os_conn_retries") == 0) {
+      m_ele->dead_os_conn_retries = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "max_connection") == 0) {
+      m_ele->max_connection = ink_atoi(tok->value);
+    } else if (strcmp(tok->name, "error_page_uri") == 0) {
+      m_ele->error_page_uri = ats_strdup(tok->value);
+    } else {
+      goto FORMAT_ERR;
+    }
+    tok = tokens->next(tok);
+  }
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+CongestionObj::~CongestionObj()
+{
+  TSCongestionEleDestroy(m_ele);
+}
+
+//
+// will always print defaults in the rule
+//
+char *
+CongestionObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char buf[MAX_BUF_SIZE];
+  size_t pos = 0;
+  int psize;
+  memset(buf, 0, MAX_BUF_SIZE);
+
+  // push in primary destination
+  if (pos < sizeof(buf)) {
+    switch (m_ele->pd_type) {
+    case TS_PD_DOMAIN:
+      psize = snprintf(buf + pos, sizeof(buf) - pos, "dest_domain=%s ", m_ele->pd_val);
+      break;
+    case TS_PD_HOST:
+      psize = snprintf(buf + pos, sizeof(buf) - pos, "dest_host=%s ", m_ele->pd_val);
+      break;
+    case TS_PD_IP:
+      psize = snprintf(buf + pos, sizeof(buf) - pos, "dest_ip=%s ", m_ele->pd_val);
+      break;
+    case TS_PD_URL_REGEX:
+      psize = snprintf(buf + pos, sizeof(buf) - pos, "host_regex=%s ", m_ele->pd_val);
+      break;
+    default:
+      psize = 0;
+      // Handled here:
+      // TS_PD_UNDEFINED
+      break;
+    }
+    if (psize > 0)
+      pos += psize;
+  }
+  // secondary specifiers
+  if (m_ele->prefix) {
+    if (pos < sizeof(buf) && (psize = snprintf(buf + pos, sizeof(buf) - pos, "prefix=%s ", m_ele->prefix)) > 0)
+      pos += psize;
+  }
+  if (m_ele->port > 0) {
+    if (pos < sizeof(buf) && (psize = snprintf(buf + pos, sizeof(buf) - pos, "port=%d ", m_ele->port)) > 0)
+      pos += psize;
+  }
+
+
+  if (pos < sizeof(buf) &&
+      (psize =
+       snprintf(buf + pos, sizeof(buf) - pos, "max_connection_failures=%d ", m_ele->max_connection_failures)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "fail_window=%d ", m_ele->fail_window)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "proxy_retry_interval=%d ", m_ele->proxy_retry_interval)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "client_wait_interval=%d ", m_ele->client_wait_interval)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "wait_interval_alpha=%d ", m_ele->wait_interval_alpha)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "live_os_conn_timeout=%d ", m_ele->live_os_conn_timeout)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "live_os_conn_retries=%d ", m_ele->live_os_conn_retries)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "dead_os_conn_timeout=%d ", m_ele->dead_os_conn_timeout)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "dead_os_conn_retries=%d ", m_ele->dead_os_conn_retries)) > 0)
+    pos += psize;
+  if (pos < sizeof(buf) &&
+      (psize = snprintf(buf + pos, sizeof(buf) - pos, "max_connection=%d ", m_ele->max_connection)) > 0)
+    pos += psize;
+  if (m_ele->error_page_uri) {
+    if (pos < sizeof(buf) &&
+        (psize = snprintf(buf + pos, sizeof(buf) - pos, "error_page=%s ", m_ele->error_page_uri)) > 0)
+      pos += psize;
+  }
+  switch (m_ele->scheme) {
+  case TS_HTTP_CONGEST_PER_IP:
+    if (pos<sizeof(buf) && (psize = snprintf(buf + pos, sizeof(buf) - pos, "congestion_scheme=per_ip "))> 0)
+      pos += psize;
+    break;
+  case TS_HTTP_CONGEST_PER_HOST:
+    if (pos<sizeof(buf) && (psize = snprintf(buf + pos, sizeof(buf) - pos, "congestion_scheme=per_host "))> 0)
+      pos += psize;
+    break;
+  default:
+    ;
+  }
+
+  return ats_strdup(buf);
+}
+
+bool CongestionObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // all Congestion Ele's should have a prim dest, sec specs are optional
+  if (!m_ele->pd_val)
+    m_valid = false;
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  return m_valid;
+}
+
+TSCfgEle *
+CongestionObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_congestion_ele(m_ele);
+}
+
+
+//--------------------------------------------------------------------------
+// HostingObj
+//--------------------------------------------------------------------------
+HostingObj::HostingObj(TSHostingEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+HostingObj::HostingObj(TokenList * tokens)
+{
+  Token *token;
+
+  m_ele = TSHostingEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || tokens->length != 2) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_HOSTING);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // First Token
+  token = tokens->first();
+  if (!token->value) {
+    goto FORMAT_ERR;
+  }
+  if (strcmp(token->name, "hostname") == 0) {
+    m_ele->pd_type = TS_PD_HOST;
+  } else if (strcmp(token->name, "domain") == 0) {
+    m_ele->pd_type = TS_PD_DOMAIN;
+  } else {
+    goto FORMAT_ERR;
+  }
+  m_ele->pd_val = ats_strdup(token->value);
+
+  // Second Token
+  token = tokens->next(token);
+  if (!token->value) {
+    goto FORMAT_ERR;
+  }
+  if (strcmp(token->name, "volume") != 0) {
+    goto FORMAT_ERR;
+  }
+  m_ele->volumes = string_to_int_list(token->value, LIST_DELIMITER);
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+
+}
+
+HostingObj::~HostingObj()
+{
+  TSHostingEleDestroy(m_ele);
+}
+
+char *
+HostingObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char *list_str;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  switch (m_ele->pd_type) {
+  case TS_PD_HOST:
+    ink_strlcat(buf, "hostname=", sizeof(buf));
+    break;
+  case TS_PD_DOMAIN:
+    ink_strlcat(buf, "domain=", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // Lots of cases...
+    break;
+  }
+
+  list_str = int_list_to_string(m_ele->volumes, ",");
+  ink_strlcat(buf, m_ele->pd_val, sizeof(buf));
+  ink_strlcat(buf, " volume=", sizeof(buf));
+  ink_strlcat(buf, list_str, sizeof(buf));
+  ats_free(list_str);
+
+  return ats_strdup(buf);
+}
+
+bool HostingObj::isValid()
+{
+  int *
+    part;
+  int
+    len,
+    i;
+
+  if (m_ele->pd_type == TS_PD_UNDEFINED) {
+    m_valid = false;
+    goto Lend;
+  }
+
+  if (!m_ele->pd_val) {
+    m_valid = false;
+    goto Lend;
+  }
+
+  if (!m_ele->volumes || !TSIntListIsValid(m_ele->volumes, 0, 50000)) {
+    m_valid = false;
+    goto Lend;
+  }
+  // check that each volume is between 1-255
+  len = TSIntListLen(m_ele->volumes);
+  for (i = 0; i < len; i++) {
+    part = TSIntListDequeue(m_ele->volumes);
+    if (*part<1 || *part> 255) {
+      TSIntListEnqueue(m_ele->volumes, part);
+      m_valid = false;
+      goto Lend;
+    }
+    TSIntListEnqueue(m_ele->volumes, part);
+  }
+
+Lend:
+  if (!m_valid) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  }
+  return m_valid;
+}
+
+TSCfgEle *
+HostingObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_hosting_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// IcpObj
+//--------------------------------------------------------------------------
+IcpObj::IcpObj(TSIcpEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+IcpObj::IcpObj(TokenList * tokens)
+{
+  Token *token;
+  int i;
+
+  m_ele = TSIcpEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || tokens->length < 8) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_ICP_PEER);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+
+  token = tokens->first();
+
+  for (i = 0; i < 8; i++) {
+    if (!token->name || token->value) {
+      goto FORMAT_ERR;
+    }
+    char *alias = token->name;
+
+    unsigned short cache_type;
+    int mc_ttl;
+    int is_multicast;
+
+    switch (i) {
+    case 0:
+      if (strlen(alias) > 0)
+        m_ele->peer_hostname = ats_strdup(alias);
+      break;
+    case 1:
+      if (strlen(alias) > 0) {
+        m_ele->peer_host_ip_addr = string_to_ip_addr(alias);
+        if (!m_ele->peer_host_ip_addr)
+          goto FORMAT_ERR;
+      }
+      break;
+    case 2:
+      cache_type = ink_atoi(alias);     // what if failed?
+      switch (cache_type) {
+      case 1:
+        m_ele->peer_type = TS_ICP_PARENT;
+        break;
+      case 2:
+        m_ele->peer_type = TS_ICP_SIBLING;
+        break;
+      default:
+        m_ele->peer_type = TS_ICP_UNDEFINED;
+      }
+      break;
+    case 3:
+      m_ele->peer_proxy_port = ink_atoi(alias);
+      break;
+    case 4:
+      m_ele->peer_icp_port = ink_atoi(alias);
+      break;
+    case 5:
+      is_multicast = ink_atoi(alias);
+      switch (is_multicast) {
+      case 0:
+        m_ele->is_multicast = false;
+        break;
+      case 1:
+        m_ele->is_multicast = true;
+        break;
+      default:
+        // ERROR:MC_on can only be either 0 or 1
+        goto FORMAT_ERR;
+      }
+      break;
+    case 6:
+      m_ele->mc_ip_addr = string_to_ip_addr(alias);
+      if (!m_ele->mc_ip_addr)
+        goto FORMAT_ERR;
+      break;
+    case 7:
+      mc_ttl = ink_atoi(alias);
+      switch (mc_ttl) {
+      case 1:
+        m_ele->mc_ttl = TS_MC_TTL_SINGLE_SUBNET;
+        break;
+      case 2:
+        m_ele->mc_ttl = TS_MC_TTL_MULT_SUBNET;
+        break;
+      default:
+        m_ele->mc_ttl = TS_MC_TTL_UNDEFINED;
+      }
+      break;
+    default:
+      goto FORMAT_ERR;
+    }
+    token = tokens->next(token);
+  }
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+IcpObj::~IcpObj()
+{
+  TSIcpEleDestroy(m_ele);
+}
+
+char *
+IcpObj::formatEleToRule()
+{
+  char *ip_str1, *ip_str2;
+  char buf[MAX_RULE_SIZE];
+  int peer_type = 0;
+
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  switch (m_ele->peer_type) {
+  case TS_ICP_PARENT:
+    peer_type = 1;
+    break;
+  case TS_ICP_SIBLING:
+    peer_type = 2;
+    break;
+  default:
+    // Handled here:
+    // TS_ICP_UNDEFINED
+    break;
+  }
+
+  // optional field
+  if (m_ele->peer_host_ip_addr)
+    ip_str1 = ip_addr_to_string(m_ele->peer_host_ip_addr);
+  else
+    ip_str1 = ats_strdup("");
+
+  // optional field
+  if (m_ele->mc_ip_addr)
+    ip_str2 = ip_addr_to_string(m_ele->mc_ip_addr);
+  else
+    ip_str2 = ats_strdup("0.0.0.0");
+
+  if (m_ele->peer_hostname) {
+    snprintf(buf, sizeof(buf), "%s:%s:%d:%d:%d:%d:%s:",
+             m_ele->peer_hostname,
+             ip_str1, peer_type, m_ele->peer_proxy_port, m_ele->peer_icp_port, (m_ele->is_multicast ? 1 : 0), ip_str2);
+  } else {
+    snprintf(buf, sizeof(buf), ":%s:%d:%d:%d:%d:%s:",
+             ip_str1, peer_type, m_ele->peer_proxy_port, m_ele->peer_icp_port, (m_ele->is_multicast ? 1 : 0), ip_str2);
+  }
+
+  switch (m_ele->mc_ttl) {
+  case TS_MC_TTL_SINGLE_SUBNET:
+    ink_strlcat(buf, "1:", sizeof(buf));
+    break;
+  case TS_MC_TTL_MULT_SUBNET:
+    ink_strlcat(buf, "2:", sizeof(buf));
+    break;
+  case TS_MC_TTL_UNDEFINED:
+    ink_strlcat(buf, "0:", sizeof(buf));
+    break;
+  }
+
+  ats_free(ip_str1);
+  ats_free(ip_str2);
+
+  return ats_strdup(buf);
+}
+
+bool IcpObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // either hostname or IP must be specified
+  if (!m_ele->peer_hostname && !m_ele->peer_host_ip_addr) {
+    m_valid = false;
+  }
+  // check valid host IP
+  if (m_ele->peer_host_ip_addr && !ccu_checkIpAddr(m_ele->peer_host_ip_addr)) {
+    m_valid = false;
+  }
+  // check valid cache type
+  if (m_ele->peer_type == TS_ICP_UNDEFINED) {
+    m_valid = false;
+  }
+  // check valid ports
+  if (!ccu_checkPortNum(m_ele->peer_proxy_port)) {
+    m_valid = false;
+  }
+
+  if (!ccu_checkPortNum(m_ele->peer_icp_port)) {
+    m_valid = false;
+  }
+  // check valid multicast values: mc_ttl, mc_ip, if enabled
+  if (m_ele->is_multicast) {
+    // a valid multicast address must be between 224.0.0.0-239.255.255.255
+    if (!ccu_checkIpAddr(m_ele->mc_ip_addr, "224.0.0.0", "239.255.255.255") || m_ele->mc_ttl == TS_MC_TTL_UNDEFINED)
+      m_valid = false;
+  } else {                      // multicast disabled; only valid mc ip is "0.0.0.0"
+    if (m_ele->mc_ip_addr && strcmp(m_ele->mc_ip_addr, "0.0.0.0") != 0)
+      m_valid = false;
+  }
+
+  if (!m_valid) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  }
+
+  return m_valid;
+}
+
+TSCfgEle *
+IcpObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_icp_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// IpAllowObj
+//--------------------------------------------------------------------------
+IpAllowObj::IpAllowObj(TSIpAllowEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+IpAllowObj::IpAllowObj(TokenList * tokens)
+{
+  Token *token;
+
+  m_ele = TSIpAllowEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || (tokens->length != 2)) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_IP_ALLOW);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+
+  token = tokens->first();
+  if (!token->name || strcmp(token->name, "src_ip")) {
+    goto FORMAT_ERR;
+  }
+  if (!token->value) {
+    goto FORMAT_ERR;
+  } else {
+    m_ele->src_ip_addr = string_to_ip_addr_ele(token->value);
+  }
+
+  token = tokens->next(token);
+  if (!token->name || strcmp(token->name, "action")) {
+    goto FORMAT_ERR;
+  }
+  if (!token->value) {
+    goto FORMAT_ERR;
+  } else {
+    if (!strcmp(token->value, "ip_allow")) {
+      m_ele->action = TS_IP_ALLOW_ALLOW;
+    } else if (strcmp(token->value, "ip_deny") == 0) {
+      m_ele->action = TS_IP_ALLOW_DENY;
+    } else {
+      m_ele->action = TS_IP_ALLOW_UNDEFINED;
+    }
+  }
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+IpAllowObj::~IpAllowObj()
+{
+  TSIpAllowEleDestroy(m_ele);
+}
+
+char *
+IpAllowObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;;
+  }
+
+  char *rule;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  ink_strlcpy(buf, "src_ip=", sizeof(buf));
+  if (m_ele->src_ip_addr) {
+    char *ip_str = ip_addr_ele_to_string(m_ele->src_ip_addr);
+    if (ip_str) {
+      ink_strlcat(buf, ip_str, sizeof(buf));
+      ats_free(ip_str);
+    }
+  }
+
+  ink_strlcat(buf, " action=", sizeof(buf));
+  switch (m_ele->action) {
+  case TS_IP_ALLOW_ALLOW:
+    ink_strlcat(buf, "ip_allow", sizeof(buf));
+    break;
+  case TS_IP_ALLOW_DENY:
+    ink_strlcat(buf, "ip_deny", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_IP_ALLOW_UNDEFINED
+    break;
+  }
+
+  rule = ats_strdup(buf);
+  return rule;
+}
+
+bool IpAllowObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+
+  if (!m_ele->src_ip_addr) {
+    m_valid = false;
+  }
+
+  switch (m_ele->action) {
+  case TS_IP_ALLOW_ALLOW:
+  case TS_IP_ALLOW_DENY:
+    break;
+  default:
+    m_valid = false;
+  }
+
+  if (!m_valid) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  }
+  return m_valid;
+}
+
+TSCfgEle *
+IpAllowObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_ip_allow_ele(m_ele);
+}
+
+
+//--------------------------------------------------------------------------
+// ParentProxyObj
+//--------------------------------------------------------------------------
+ParentProxyObj::ParentProxyObj(TSParentProxyEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+ParentProxyObj::ParentProxyObj(TokenList * tokens)
+{
+  Token *tok;
+  m_ele = TSParentProxyEleCreate(TS_TYPE_UNDEFINED);
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || tokens->length < 1) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_PARENT_PROXY);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+
+  tok = tokens->first();
+  tok = tokens_to_pdss_format(tokens, tok, &(m_ele->parent_info));
+  if (tok == NULL) {
+    goto FORMAT_ERR;
+  }
+  // search parent and round_robin action tags
+  for (tok = tokens->next(tok); tok; tok = tokens->next(tok)) {
+    if (strcmp(tok->name, "round_robin") == 0) {
+      // sanity check
+      if (!tok->value) {
+        goto FORMAT_ERR;
+      }
+      if (strcmp(tok->value, "true") == 0) {
+        m_ele->rr = TS_RR_TRUE;
+      } else if (strcmp(tok->value, "strict") == 0) {
+        m_ele->rr = TS_RR_STRICT;
+      } else if (strcmp(tok->value, "false") == 0) {
+        m_ele->rr = TS_RR_FALSE;
+      } else {
+        m_ele->rr = TS_RR_NONE;
+        goto FORMAT_ERR;
+      }
+
+    } else if (strcmp(tok->name, "parent") == 0) {
+      // sanity check
+      if (!tok->value) {
+        goto FORMAT_ERR;
+      }
+      m_ele->proxy_list = string_to_domain_list(tok->value, ";");
+
+    } else if (strcmp(tok->name, "go_direct") == 0) {
+      // sanity check
+      if (!tok->value) {
+        goto FORMAT_ERR;
+      }
+      if (!strcmp(tok->value, "true")) {
+        m_ele->direct = true;
+      } else if (!strcmp(tok->value, "false")) {
+        m_ele->direct = false;
+      } else {
+        goto FORMAT_ERR;
+      }
+    } else {
+      goto FORMAT_ERR;
+    }
+  }
+
+  // the rule type should tell us whether go_direct or not
+  // the "go_direct" action tag recognization is done in get_rule_type
+  switch (m_ele->cfg_ele.type) {
+  case TS_PP_GO_DIRECT:
+    m_ele->direct = true;
+    break;
+  case TS_PP_PARENT:
+    m_ele->direct = false;
+    break;
+  default:
+    // Handled here:
+    // Lots of cases
+    break;
+  }
+
+  return;
+
+FORMAT_ERR:
+  m_valid = false;
+}
+
+ParentProxyObj::~ParentProxyObj()
+{
+  TSParentProxyEleDestroy(m_ele);
+}
+
+char *
+ParentProxyObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char *pd_str, *list_str;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  pd_str = pdest_sspec_to_string(m_ele->parent_info.pd_type, m_ele->parent_info.pd_val, &(m_ele->parent_info.sec_spec));
+  if (!pd_str)
+    return NULL;
+  ink_strlcat(buf, pd_str, sizeof(buf));
+  ats_free(pd_str);
+
+  // round_robin
+  if ((m_ele->rr != TS_RR_NONE) && (m_ele->rr != TS_RR_UNDEFINED)) {
+    if (!isspace(buf[strlen(buf) - 1])) {
+      ink_strlcat(buf, " ", sizeof(buf));
+    }
+    ink_strlcat(buf, "round_robin=", sizeof(buf));
+    switch (m_ele->rr) {
+    case TS_RR_TRUE:
+      ink_strlcat(buf, "true", sizeof(buf));
+      break;
+    case TS_RR_STRICT:
+      ink_strlcat(buf, "strict", sizeof(buf));
+      break;
+    case TS_RR_FALSE:
+      ink_strlcat(buf, "false", sizeof(buf));
+      break;
+    default:
+      // Handled here:
+      // TS_RR_NONE, TS_RR_UNDEFINED
+      break;
+    }
+  }
+
+  if (m_ele->proxy_list != NULL) {
+    // include space delimiter if not already exist
+    if (!isspace(buf[strlen(buf) - 1])) {
+      ink_strlcat(buf, " ", sizeof(buf));
+    }
+    list_str = domain_list_to_string(m_ele->proxy_list, ";");
+    ink_strlcat(buf, "parent=\"", sizeof(buf));
+    if (list_str) {
+      ink_strlcat(buf, list_str, sizeof(buf));
+      ats_free(list_str);
+    }
+    ink_strlcat(buf, "\"", sizeof(buf));
+
+  }
+
+  if (m_ele->direct) {
+    // include space delimiter if not already exist
+    if (!isspace(buf[strlen(buf) - 1])) {
+      ink_strlcat(buf, " ", sizeof(buf));
+    }
+    ink_strlcat(buf, "go_direct=true", sizeof(buf));
+  } else {
+    if (!isspace(buf[strlen(buf) - 1])) {
+      ink_strlcat(buf, " ", sizeof(buf));
+    }
+    ink_strlcat(buf, "go_direct=false", sizeof(buf));
+  }
+
+  return ats_strdup(buf);
+}
+
+bool ParentProxyObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+
+  if (!ccu_checkPdSspec(m_ele->parent_info)) {
+    m_valid = false;
+  }
+
+  if (m_ele->proxy_list && !TSDomainListIsValid(m_ele->proxy_list)) {
+    m_valid = false;
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+ParentProxyObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_parent_proxy_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// VolumeObj
+//--------------------------------------------------------------------------
+VolumeObj::VolumeObj(TSVolumeEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+VolumeObj::VolumeObj(TokenList * tokens)
+{
+  Token *token;
+
+  m_ele = TSVolumeEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || tokens->length != 3) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_VOLUME);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+
+  token = tokens->first();
+  if (strcmp(token->name, "volume") || !token->value) {
+    goto FORMAT_ERR;
+  }
+  m_ele->volume_num = ink_atoi(token->value);
+
+  token = tokens->next(token);
+  if (strcmp(token->name, "scheme") || !token->value) {
+    goto FORMAT_ERR;
+  }
+  if (!strcmp(token->value, "http")) {
+    m_ele->scheme = TS_VOLUME_HTTP;
+  } else {
+    m_ele->scheme = TS_VOLUME_UNDEFINED;
+  }
+
+  token = tokens->next(token);
+  if (strcmp(token->name, "size") || !token->value) {
+    goto FORMAT_ERR;
+  }
+  // CAUTION: we may need a tigher error check
+  if (strstr(token->value, "%")) {
+    m_ele->size_format = TS_SIZE_FMT_PERCENT;
+  } else {
+    m_ele->size_format = TS_SIZE_FMT_ABSOLUTE;
+  }
+  m_ele->volume_size = ink_atoi(token->value);
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+VolumeObj::~VolumeObj()
+{
+  TSVolumeEleDestroy(m_ele);
+}
+
+char *
+VolumeObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  snprintf(buf, sizeof(buf), "volume=%d scheme=", m_ele->volume_num);
+
+  switch (m_ele->scheme) {
+  case TS_VOLUME_HTTP:
+    ink_strlcat(buf, "http", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_VOLUME_UNDEFINED, TS_SIZE_FMT_ABSOLUTE, TS_SIZE_FMT_UNDEFINED
+    break;
+  }
+
+  size_t pos = strlen(buf);
+  snprintf(buf + pos, sizeof(buf) - pos, " size=%d", m_ele->volume_size);
+  switch (m_ele->size_format) {
+  case TS_SIZE_FMT_PERCENT:
+    ink_strlcat(buf, "%", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_SIZE_FMT_ABSOLUTE, TS_SIZE_FMT_UNDEFINED
+    break;
+  }
+
+  return ats_strdup(buf);
+}
+
+bool VolumeObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // volume nubmer must be between 1-255 inclusive
+  if (m_ele->volume_num < 1 || m_ele->volume_num > 255) {
+    m_valid = false;
+  }
+
+  switch (m_ele->scheme) {
+  case TS_VOLUME_HTTP:
+    break;
+  default:
+    m_valid = false;
+  }
+
+  // absolute size must be multiple of 128; percentage size <= 100
+  if (m_ele->size_format == TS_SIZE_FMT_ABSOLUTE) {
+    if ((m_ele->volume_size < 0) || (m_ele->volume_size % 128)) {
+      m_valid = false;
+    }
+  } else if (m_ele->size_format == TS_SIZE_FMT_PERCENT) {
+    if ((m_ele->volume_size < 0) || (m_ele->volume_size > 100)) {
+      m_valid = false;
+    }
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+VolumeObj::getCfgEleCopy()
+{
+  return (TSCfgEle *)copy_volume_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// PluginObj
+//--------------------------------------------------------------------------
+PluginObj::PluginObj(TSPluginEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+PluginObj::PluginObj(TokenList * tokens)
+{
+  Token *token;
+
+  m_ele = TSPluginEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || tokens->length < 1) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_PLUGIN);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // plugin name
+  token = tokens->first();
+  if (strcmp(token->name, "") == 0) {
+    goto FORMAT_ERR;
+  }
+  m_ele->name = ats_strdup(token->name);
+
+  // arguments
+  token = tokens->next(token);
+  while (token) {
+    if (m_ele->args == TS_INVALID_LIST)
+      m_ele->args = TSStringListCreate();
+    if (token->name)
+      TSStringListEnqueue(m_ele->args, ats_strdup(token->name));
+    token = tokens->next(token);
+  }
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+PluginObj::~PluginObj()
+{
+  TSPluginEleDestroy(m_ele);
+}
+
+char *
+PluginObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char *list_str;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  list_str = string_list_to_string(m_ele->args, " ");
+  if (list_str) {
+    snprintf(buf, sizeof(buf), "%s %s", m_ele->name, list_str);
+    ats_free(list_str);
+  } else {
+    snprintf(buf, sizeof(buf), "%s", m_ele->name);
+  }
+
+  return ats_strdup(buf);
+}
+
+bool PluginObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // check plugin name
+  if (!m_ele->name || strcmp(m_ele->name, "") == 0) {
+    m_valid = false;
+  }
+
+  return m_valid;
+}
+
+TSCfgEle *
+PluginObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_plugin_ele(m_ele);
+}
+
+
+//--------------------------------------------------------------------------
+// RemapObj
+//--------------------------------------------------------------------------
+RemapObj::RemapObj(TSRemapEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+RemapObj::RemapObj(TokenList * tokens)
+{
+  Token *token;
+  short current;                // current token index
+  Tokenizer fromTok(":/");
+  Tokenizer toTok(":/");
+  char buf[MAX_RULE_SIZE];
+
+  m_ele = TSRemapEleCreate(TS_TYPE_UNDEFINED);
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || ((tokens->length != 2) && (tokens->length != 3))) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_REMAP);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // The first token must either be "map, "reverse_map", "redirect", and redirect_temporary
+  token = tokens->first();
+
+  // target
+  token = tokens->next(token);
+
+  if (!ccu_checkUrl(token->name)) {
+    goto FORMAT_ERR;
+  }
+
+  // TODO: Should we check the return value (count) here?
+  fromTok.Initialize(token->name, ALLOW_EMPTY_TOKS);       // allow empty token for parse sanity check
+
+  if (strcmp(fromTok[0], "http") == 0) {
+    m_ele->from_scheme = TS_SCHEME_HTTP;
+  } else if (strcmp(fromTok[0], "https") == 0) {
+    m_ele->from_scheme = TS_SCHEME_HTTPS;
+  } else {
+    m_ele->from_scheme = TS_SCHEME_UNDEFINED;
+    goto FORMAT_ERR;
+  }
+
+  // from host
+  m_ele->from_host = ats_strdup(fromTok[3]);
+
+  current = 4;
+  if (fromTok[4]) {
+
+    // from port
+    m_ele->from_port = ink_atoi(fromTok[4]);
+    if (m_ele->from_port != 0) {        // Does it have a port
+      current++;
+    } else {                    // No ports
+      m_ele->from_port = TS_INVALID_PORT;
+    }
+
+    // from prefix
+    if (fromTok[current]) {
+
+      memset(buf, 0, MAX_RULE_SIZE);
+
+      for (int i = current; fromTok[i]; i++) {
+        ink_strlcat(buf, fromTok[i], sizeof(buf));
+        ink_strlcat(buf, "/", sizeof(buf));
+      }
+
+      if ((token->name)[strlen(token->name) - 1] != '/') {
+        buf[strlen(buf) - 1] = '\0';    // truncate the last '/'
+      }
+
+      m_ele->from_path_prefix = ats_strdup(buf);
+    }
+  } else {
+    if ((token->name)[strlen(token->name) - 1] == '/') {
+      memset(buf, 0, MAX_RULE_SIZE);
+      ink_strlcpy(buf, m_ele->from_host, sizeof(buf));
+      ats_free(m_ele->from_host);
+      ink_strlcat(buf, "/", sizeof(buf));
+      m_ele->from_host = ats_strdup(buf);
+    }
+  }
+
+  if (!ccu_checkUrl(token->value)) {
+    goto FORMAT_ERR;
+  }
+
+  // TODO: Should we check the return value (count) here?
+  toTok.Initialize(token->value, ALLOW_EMPTY_TOKS);  // allow empty token for parse sanity check
+
+  if (strcmp(toTok[0], "http") == 0) {
+    m_ele->to_scheme = TS_SCHEME_HTTP;
+  } else if (strcmp(toTok[0], "https") == 0) {
+    m_ele->to_scheme = TS_SCHEME_HTTPS;
+  } else {
+    m_ele->to_scheme = TS_SCHEME_UNDEFINED;
+    goto FORMAT_ERR;
+  }
+
+  // to host
+  m_ele->to_host = ats_strdup(toTok[3]);
+
+  current = 4;
+  if (toTok[4]) {
+
+    // to port
+    m_ele->to_port = ink_atoi(toTok[4]);
+    if (m_ele->to_port != 0) {  // Does it have a port
+      current++;
+    } else {                    // No ports
+      m_ele->to_port = TS_INVALID_PORT;
+    }
+
+    // to prefix
+    if (toTok[current]) {
+
+      memset(buf, 0, MAX_RULE_SIZE);
+
+      for (int i = current; toTok[i]; i++) {
+        ink_strlcat(buf, toTok[i], sizeof(buf));
+        ink_strlcat(buf, "/", sizeof(buf));
+      }
+
+      if ((token->name)[strlen(token->name) - 1] != '/') {
+        buf[strlen(buf) - 1] = '\0';    // truncate the last '/'
+      }
+
+      m_ele->to_path_prefix = ats_strdup(buf);
+    }
+  } else {
+    if ((token->value)[strlen(token->value) - 1] == '/') {
+
+      memset(buf, 0, MAX_RULE_SIZE);
+      ink_strlcpy(buf, m_ele->to_host, sizeof(buf));
+      ats_free(m_ele->to_host);
+      ink_strlcat(buf, "/", sizeof(buf));
+      m_ele->to_host = ats_strdup(buf);
+
+    }
+  }
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+RemapObj::~RemapObj()
+{
+  TSRemapEleDestroy(m_ele);
+}
+
+char *
+RemapObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  switch (m_ele->cfg_ele.type) {
+  case TS_REMAP_MAP:
+    ink_strlcat(buf, "map", sizeof(buf));
+    break;
+  case TS_REMAP_REVERSE_MAP:
+    ink_strlcat(buf, "reverse_map", sizeof(buf));
+    break;
+  case TS_REMAP_REDIRECT:
+    ink_strlcat(buf, "redirect", sizeof(buf));
+    break;
+  case TS_REMAP_REDIRECT_TEMP:
+    ink_strlcat(buf, "redirect_temporary", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // Lots of cases...
+    break;
+  }
+  // space delimitor
+  ink_strlcat(buf, " ", sizeof(buf));
+
+  // from scheme
+  switch (m_ele->from_scheme) {
+  case TS_SCHEME_HTTP:
+    ink_strlcat(buf, "http", sizeof(buf));
+    break;
+  case TS_SCHEME_HTTPS:
+    ink_strlcat(buf, "https", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_SCHEME_NONE, TS_SCHEME_UNDEFINED
+    break;
+  }
+  ink_strlcat(buf, "://", sizeof(buf));
+
+  // from host
+  if (m_ele->from_host) {
+    ink_strlcat(buf, m_ele->from_host, sizeof(buf));
+  }
+  // from port
+  if (m_ele->from_port != TS_INVALID_PORT) {
+    snprintf(buf, sizeof(buf), "%s:%d", buf, m_ele->from_port);
+  }
+  // from host path
+  if (m_ele->from_path_prefix) {
+    ink_strlcat(buf, "/", sizeof(buf));
+    ink_strlcat(buf, m_ele->from_path_prefix, sizeof(buf));
+  }
+  // space delimitor
+  ink_strlcat(buf, " ", sizeof(buf));
+
+  // to scheme
+  switch (m_ele->to_scheme) {
+  case TS_SCHEME_HTTP:
+    ink_strlcat(buf, "http", sizeof(buf));
+    break;
+  case TS_SCHEME_HTTPS:
+    ink_strlcat(buf, "https", sizeof(buf));
+    break;
+  default:
+    // Handled here:
+    // TS_SCHEME_NONE, TS_SCHEME_UNDEFINED
+    break;
+  }
+  ink_strlcat(buf, "://", sizeof(buf));
+
+  // to host
+  if (m_ele->to_host) {
+    ink_strlcat(buf, m_ele->to_host, sizeof(buf));
+  }
+  // to port
+  if (m_ele->to_port != TS_INVALID_PORT) {
+    snprintf(buf, sizeof(buf), "%s:%d", buf, m_ele->to_port);
+  }
+  // to host path
+  if (m_ele->to_path_prefix) {
+    ink_strlcat(buf, "/", sizeof(buf));
+    ink_strlcat(buf, m_ele->to_path_prefix, sizeof(buf));
+  }
+
+  return ats_strdup(buf);
+}
+
+bool RemapObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // rule type
+  switch (m_ele->cfg_ele.type) {
+  case TS_REMAP_MAP:
+  case TS_REMAP_REVERSE_MAP:
+  case TS_REMAP_REDIRECT:
+  case TS_REMAP_REDIRECT_TEMP:
+    break;
+  default:
+    m_valid = false;
+  }
+
+  // from scheme
+  switch (m_ele->from_scheme) {
+  case TS_SCHEME_HTTP:
+  case TS_SCHEME_HTTPS:
+    break;
+  default:
+    m_valid = false;
+  }
+
+  switch (m_ele->to_scheme) {
+  case TS_SCHEME_HTTP:
+  case TS_SCHEME_HTTPS:
+    break;
+  default:
+    m_valid = false;
+  }
+
+  // mandatory field
+  if (!m_ele->from_host || strstr(m_ele->from_host, ":/")) {
+    m_valid = false;
+  }
+  // mandatory field
+  if (!m_ele->to_host || strstr(m_ele->to_host, ":/")) {
+    m_valid = false;
+  }
+
+  if ((m_ele->from_path_prefix && strstr(m_ele->from_path_prefix, ":")) ||
+      (m_ele->to_path_prefix && strstr(m_ele->to_path_prefix, ":"))) {
+    m_valid = false;
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+RemapObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_remap_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// SocksObj
+//--------------------------------------------------------------------------
+SocksObj::SocksObj(TSSocksEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+SocksObj::SocksObj(TokenList * tokens)
+{
+  Token *tok;
+
+  m_ele = TSSocksEleCreate(TS_TYPE_UNDEFINED);
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_SOCKS);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // Determine if it's  a "no-socks" rule or a "parent socks servers" rule
+  tok = tokens->first();
+  if (strcmp(tok->name, "no_socks") == 0) {     // no-socks rule; TS_SOCKS_BYPASS
+
+    if (m_ele->ip_addrs != NULL) {
+      goto FORMAT_ERR;
+    }
+    m_ele->ip_addrs = string_to_ip_addr_list(tok->value, ",");
+  } else if (strcmp(tok->name, "auth") == 0) {  // TS_SOCKS_AUTH rule
+    if (strcmp(tok->value, "u") == 0) {
+      tok = tokens->next(tok);
+      if (tok && tok->name) {
+        m_ele->username = ats_strdup(tok->name);
+      } else {
+        goto FORMAT_ERR;
+      }
+      if (tok && tok->name) {
+        tok = tokens->next(tok);
+        m_ele->password = ats_strdup(tok->name);
+      } else {
+        goto FORMAT_ERR;
+      }
+    } else {
+      goto FORMAT_ERR;
+    }
+  } else {                      // multiple socks servers rule; TS_SOCKS_MULTIPLE
+    // should be dest_ip tag
+    if (strcmp(tok->name, "dest_ip") == 0) {
+      m_ele->dest_ip_addr = string_to_ip_addr_ele(tok->value);
+    } else {
+      goto FORMAT_ERR;
+    }
+
+    // search dest_ip, parent and round_robin action tags
+    for (tok = tokens->next(tok); tok; tok = tokens->next(tok)) {
+      if (strcmp(tok->name, "round_robin") == 0) {
+        // sanity check
+        if (!tok->value) {
+          goto FORMAT_ERR;
+        }
+
+        if (strcmp(tok->value, "true") == 0) {
+          m_ele->rr = TS_RR_TRUE;
+        } else if (strcmp(tok->value, "strict") == 0) {
+          m_ele->rr = TS_RR_STRICT;
+        } else if (strcmp(tok->value, "false") == 0) {
+          m_ele->rr = TS_RR_FALSE;
+        } else {
+          m_ele->rr = TS_RR_NONE;
+          goto FORMAT_ERR;      // missing value for round_robin tag
+        }
+
+      } else if (strcmp(tok->name, "parent") == 0) {
+        // sanity check
+        if (!tok->value) {
+          goto FORMAT_ERR;
+        }
+        m_ele->socks_servers = string_to_domain_list(tok->value, ";");
+      }
+    }                           // end for loop
+
+  }
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+SocksObj::~SocksObj()
+{
+  TSSocksEleDestroy(m_ele);
+}
+
+char *
+SocksObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  if (m_ele->ip_addrs != NULL) {        // TS_SOCKS_BYPASS rule
+    char *str_list = ip_addr_list_to_string((LLQ *) m_ele->ip_addrs, ",");
+    if (str_list) {
+      snprintf(buf, sizeof(buf), "no_socks %s", str_list);
+      ats_free(str_list);
+    } else {
+      return NULL;              // invalid ip_addr_list
+    }
+  } else if (m_ele->username != NULL) { // TS_SOCKS_AUTH rule
+    snprintf(buf, sizeof(buf), "auth u %s %s", m_ele->username, m_ele->password);
+  } else {                      // TS_SOCKS_MULTIPLE rule
+    // destination ip
+    char *ip_str = ip_addr_ele_to_string((TSIpAddrEle *) m_ele->dest_ip_addr);
+    if (ip_str) {
+      ink_strlcat(buf, "dest_ip=", sizeof(buf));
+      ink_strlcat(buf, ip_str, sizeof(buf));
+      ats_free(ip_str);
+    } else {
+      return NULL;              // invalid IP
+    }
+
+    // parent server list
+    if (m_ele->socks_servers != NULL) {
+      // include space delimiter if not already exist
+      if (!isspace(buf[strlen(buf) - 1])) {
+        ink_strlcat(buf, " ", sizeof(buf));
+      }
+      char *list_str = domain_list_to_string(m_ele->socks_servers, ";");
+      if (list_str) {
+        ink_strlcat(buf, "parent=\"", sizeof(buf));
+        ink_strlcat(buf, list_str, sizeof(buf));
+        ink_strlcat(buf, "\"", sizeof(buf));
+        ats_free(list_str);
+      } else {
+        return NULL;            // invalid list
+      }
+    }
+    // round-robin, if specified
+    if ((m_ele->rr != TS_RR_NONE) && (m_ele->rr != TS_RR_UNDEFINED)) {
+      if (!isspace(buf[strlen(buf) - 1])) {
+        ink_strlcat(buf, " ", sizeof(buf));
+      }
+      ink_strlcat(buf, "round_robin=", sizeof(buf));
+      switch (m_ele->rr) {
+      case TS_RR_TRUE:
+        ink_strlcat(buf, "true", sizeof(buf));
+        break;
+      case TS_RR_STRICT:
+        ink_strlcat(buf, "strict", sizeof(buf));
+        break;
+      case TS_RR_FALSE:
+        ink_strlcat(buf, "false", sizeof(buf));
+        break;
+      default:
+        // Handled here:
+        // TS_RR_NONE, TS_RR_UNDEFINED
+        break;
+      }
+    }
+  }
+
+  return ats_strdup(buf);
+}
+
+// the rule must either have an ip addr list (exclusive) OR
+// the dest_ip_addr * socks_servers OR
+// the username and password
+bool SocksObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+
+  switch (m_ele->cfg_ele.type) {
+  case TS_SOCKS_BYPASS:
+    if (m_ele->dest_ip_addr || m_ele->username || m_ele->password || !TSIpAddrListIsValid(m_ele->ip_addrs)) {
+      m_valid = false;
+    } else {
+      m_valid = true;
+    }
+    break;
+  case TS_SOCKS_AUTH:
+    if (m_ele->username == NULL || m_ele->password == NULL || m_ele->ip_addrs || m_ele->dest_ip_addr) {
+      m_valid = false;
+    } else {
+      m_valid = true;
+    }
+    break;
+  case TS_SOCKS_MULTIPLE:
+    if (m_ele->ip_addrs || m_ele->username ||
+        !(m_ele->dest_ip_addr && m_ele->socks_servers) ||
+        !ccu_checkIpAddrEle(m_ele->dest_ip_addr) || !TSDomainListIsValid(m_ele->socks_servers)) {
+      m_valid = false;
+    } else {
+      m_valid = true;
+    }
+    break;
+  default:
+    m_valid = false;
+    break;
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+SocksObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_socks_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// SplitDnsObj
+//--------------------------------------------------------------------------
+SplitDnsObj::SplitDnsObj(TSSplitDnsEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+SplitDnsObj::SplitDnsObj(TokenList * tokens)
+{
+  Token *tok;
+
+  m_ele = TSSplitDnsEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || (tokens->length > 6)) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_SPLIT_DNS);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+
+  tok = tokens->first();
+  while (tok) {
+    if (!strcmp(tok->name, "dest_domain")) {
+      if ((m_ele->pd_type != TS_PD_UNDEFINED) || (m_ele->pd_val != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->pd_type = TS_PD_DOMAIN;
+      m_ele->pd_val = ats_strdup(tok->value);
+    } else if (strcmp(tok->name, "dest_host") == 0) {
+      if ((m_ele->pd_type != TS_PD_UNDEFINED) || (m_ele->pd_val != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->pd_type = TS_PD_HOST;
+      m_ele->pd_val = ats_strdup(tok->value);
+    } else if (strcmp(tok->name, "url_regex") == 0) {
+      if ((m_ele->pd_type != TS_PD_UNDEFINED) || (m_ele->pd_val != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->pd_type = TS_PD_URL_REGEX;
+      m_ele->pd_val = ats_strdup(tok->value);
+    } else if (strcmp(tok->name, "url") == 0) {
+      if ((m_ele->pd_type != TS_PD_UNDEFINED) || (m_ele->pd_val != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->pd_type = TS_PD_URL;
+      m_ele->pd_val = ats_strdup(tok->value);
+    } else if (strcmp(tok->name, "named") == 0) {
+      if ((m_ele->dns_servers_addrs != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->dns_servers_addrs = (TSDomainList) string_to_domain_list(tok->value, "; ");
+    } else if (strcmp(tok->name, "def_domain") == 0) {
+      if ((m_ele->def_domain != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->def_domain = ats_strdup(tok->value);
+    } else if (strcmp(tok->name, "search_list") == 0) {
+      if ((m_ele->search_list != NULL) || (!tok->value)) {
+        // fields are already defined!!
+        goto FORMAT_ERR;
+      }
+      m_ele->search_list = (TSDomainList) string_to_domain_list(tok->value, "; ");
+    } else {
+      // Not able to recongize token name
+      goto FORMAT_ERR;
+    }
+
+    tok = tokens->next(tok);
+  }
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+SplitDnsObj::~SplitDnsObj()
+{
+  TSSplitDnsEleDestroy(m_ele);
+}
+
+char *
+SplitDnsObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  char *pd_name;
+  switch (m_ele->pd_type) {
+  case TS_PD_DOMAIN:
+    pd_name = ats_strdup("dest_domain");
+    break;
+  case TS_PD_HOST:
+    pd_name = ats_strdup("dest_host");
+    break;
+  case TS_PD_URL_REGEX:
+    pd_name = ats_strdup("url_regex");
+    break;
+  case TS_PD_URL:
+    pd_name = ats_strdup("url");
+    break;
+  default:
+    pd_name = ats_strdup("");      // lv: just to make this junk workable
+    // Handled here:
+    // TS_PD_IP, TS_PD_UNDEFINED
+    break;
+  }
+
+  if (m_ele->pd_val) {
+    ink_strlcat(buf, pd_name, sizeof(buf));
+    ink_strlcat(buf, "=", sizeof(buf));
+    if (strstr(m_ele->pd_val, " ")) {
+      ink_strlcat(buf, "\"", sizeof(buf));
+    }
+    ink_strlcat(buf, m_ele->pd_val, sizeof(buf));
+    if (strstr(m_ele->pd_val, " ")) {
+      ink_strlcat(buf, "\"", sizeof(buf));
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+
+  if (m_ele->dns_servers_addrs) {
+    ink_strlcat(buf, "named=", sizeof(buf));
+    char *temp = domain_list_to_string((LLQ *) m_ele->dns_servers_addrs, ";");
+    if (temp) {
+      if (strstr(temp, " ")) {
+        ink_strlcat(buf, "\"", sizeof(buf));
+      }
+      ink_strlcat(buf, temp, sizeof(buf));
+      if (strstr(temp, " ")) {
+        ink_strlcat(buf, "\"", sizeof(buf));
+      }
+      ats_free(temp);
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+
+  if (m_ele->def_domain) {
+    ink_strlcat(buf, "def_domain=", sizeof(buf));
+    if (strstr(m_ele->def_domain, " ")) {
+      ink_strlcat(buf, "\"", sizeof(buf));
+    }
+    ink_strlcat(buf, m_ele->def_domain, sizeof(buf));
+    if (strstr(m_ele->def_domain, " ")) {
+      ink_strlcat(buf, "\"", sizeof(buf));
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+
+  if (m_ele->search_list) {
+    ink_strlcat(buf, "search_list=", sizeof(buf));
+    char *temp = domain_list_to_string(m_ele->search_list, ";");
+    if (temp) {
+      if (strstr(temp, " ")) {
+        ink_strlcat(buf, "\"", sizeof(buf));
+      }
+      ink_strlcat(buf, temp, sizeof(buf));
+      if (strstr(temp, " ")) {
+        ink_strlcat(buf, "\"", sizeof(buf));
+      }
+      ats_free(temp);
+    }
+    ink_strlcat(buf, " ", sizeof(buf));
+  }
+  // chop the last space
+  while (isspace(buf[strlen(buf) - 1])) {
+    buf[strlen(buf) - 1] = '\0';
+  }
+
+  ats_free(pd_name);
+
+  return ats_strdup(buf);
+}
+
+bool SplitDnsObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+
+  switch (m_ele->pd_type) {
+  case TS_PD_DOMAIN:
+  case TS_PD_HOST:
+  case TS_PD_URL_REGEX:
+    break;
+  default:
+    m_valid = false;
+  }
+
+  if (!m_ele->pd_val) {
+    m_valid = false;
+  }
+
+  if (!TSDomainListIsValid(m_ele->dns_servers_addrs)) {
+    m_valid = false;
+  }
+  // search_list is optional
+  if (m_ele->search_list && !TSDomainListIsValid(m_ele->search_list)) {
+    m_valid = false;
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+SplitDnsObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_split_dns_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// StorageObj
+//--------------------------------------------------------------------------
+StorageObj::StorageObj(TSStorageEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();          // now validate
+}
+
+// must have at least 1 token (token-name = pathname, token-value = size (if any) )
+StorageObj::StorageObj(TokenList * tokens)
+{
+  Token *tok;
+
+  m_ele = TSStorageEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || (tokens->length > 6)) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_STORAGE);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // check first token; must exist
+  tok = tokens->first();
+  if (!tok->name) {
+    goto FORMAT_ERR;            // no pathname specified
+  } else {
+    m_ele->pathname = ats_strdup(tok->name);
+  }
+
+  // check if size is specified
+  if (tok->value)               // size is specified in second token
+    m_ele->size = ink_atoi(tok->value);
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+StorageObj::~StorageObj()
+{
+  TSStorageEleDestroy(m_ele);
+}
+
+char *
+StorageObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  if (m_ele->size < 0) {        // if size < 0, then raw volume
+    snprintf(buf, sizeof(buf), "%s", m_ele->pathname);
+  } else {
+    snprintf(buf, sizeof(buf), "%s %d", m_ele->pathname, m_ele->size);
+  }
+
+  return ats_strdup(buf);
+}
+
+bool StorageObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+
+  if (!(m_ele->pathname))
+    m_valid = false;
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+StorageObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_storage_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// UpdateObj
+//--------------------------------------------------------------------------
+UpdateObj::UpdateObj(TSUpdateEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+UpdateObj::UpdateObj(TokenList * tokens)
+{
+  Token *token;
+
+  m_ele = TSUpdateEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || tokens->length < 5) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_UPDATE_URL);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // URL
+  token = tokens->first();
+  if (strcmp(token->name, "") == 0) {
+    goto FORMAT_ERR;
+  }
+  m_ele->url = ats_strdup(token->name);
+
+  // Request_headers
+  token = tokens->next(token);
+  m_ele->headers = string_to_string_list(token->name, ";");
+
+  // Offset_hour
+  token = tokens->next(token);
+  if (strcmp(token->name, "") == 0) {
+    goto FORMAT_ERR;
+  }
+  m_ele->offset_hour = ink_atoi(token->name);
+
+  // Interval
+  token = tokens->next(token);
+  if (strcmp(token->name, "") == 0) {
+    goto FORMAT_ERR;
+  }
+  m_ele->interval = ink_atoi(token->name);
+
+  // Recursion_depth
+  token = tokens->next(token);
+  if (strcmp(token->name, "") == 0) {
+    goto FORMAT_ERR;
+  }
+  m_ele->recursion_depth = ink_atoi(token->name);
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+UpdateObj::~UpdateObj()
+{
+  TSUpdateEleDestroy(m_ele);
+}
+
+char *
+UpdateObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char *list_str;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  list_str = string_list_to_string(m_ele->headers, ";");
+  if (list_str) {
+    snprintf(buf, sizeof(buf), "%s\\%s\\%d\\%d\\%d\\",
+             m_ele->url, list_str, m_ele->offset_hour, m_ele->interval, m_ele->recursion_depth);
+    ats_free(list_str);
+  } else {
+    snprintf(buf, sizeof(buf), "%s\\\\%d\\%d\\%d\\",
+             m_ele->url, m_ele->offset_hour, m_ele->interval, m_ele->recursion_depth);
+  }
+
+  return ats_strdup(buf);
+}
+
+bool UpdateObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+  // check url
+  if (!m_ele->url || strcmp(m_ele->url, "") == 0 ||
+      strstr(m_ele->url, "\\") ||
+      (!strstr(m_ele->url, "http"))) {
+    m_valid = false;
+  }
+  // bug 49322: check that there are no "\" in the url or headers
+  char *
+    list_str = string_list_to_string(m_ele->headers, ";");
+  if (list_str) {
+    if (strstr(list_str, "\\"))
+      m_valid = false;
+    ats_free(list_str);
+  }
+  // offset hour range is 00-23
+  if (m_ele->offset_hour < 0 || m_ele->offset_hour > 23)
+    m_valid = false;
+
+  if (m_ele->interval < 0)
+    m_valid = false;
+
+  // optional - default is 0
+  if (m_ele->recursion_depth < 0) {
+    m_valid = false;
+  }
+  // recursion depth can only be specified for http
+  if (m_ele->recursion_depth > 0) {
+    if (!m_ele->url || !strstr(m_ele->url, "http")) {
+      m_valid = false;
+    }
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+UpdateObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_update_ele(m_ele);
+}
+
+//--------------------------------------------------------------------------
+// VirtIpAddrObj
+//--------------------------------------------------------------------------
+VirtIpAddrObj::VirtIpAddrObj(TSVirtIpAddrEle * ele)
+{
+  m_ele = ele;
+  m_valid = true;
+  m_valid = isValid();
+}
+
+VirtIpAddrObj::VirtIpAddrObj(TokenList * tokens)
+{
+  Token *tok;
+
+  m_ele = TSVirtIpAddrEleCreate();
+  m_ele->cfg_ele.error = TS_ERR_OKAY;
+  m_valid = true;
+
+  if (!tokens || (tokens->length != 3)) {
+    goto FORMAT_ERR;
+  }
+
+  m_ele->cfg_ele.type = get_rule_type(tokens, TS_FNAME_VADDRS);
+  if (m_ele->cfg_ele.type == TS_TYPE_UNDEFINED) {
+    goto FORMAT_ERR;
+  }
+  // IP Address
+  tok = tokens->first();
+  if (tok->value != NULL) {
+    goto FORMAT_ERR;
+  }
+  m_ele->ip_addr = string_to_ip_addr(tok->name);
+
+  // Device
+  tok = tokens->next(tok);
+  if (tok->value != NULL) {
+    goto FORMAT_ERR;
+  }
+  m_ele->intr = ats_strdup(tok->name);
+
+  // Subinterface
+  tok = tokens->next(tok);
+  if (tok->value != NULL) {
+    goto FORMAT_ERR;
+  }
+  m_ele->sub_intr = ink_atoi(tok->name);        // ERROR: can't convert?
+
+  return;
+
+FORMAT_ERR:
+  m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+  m_valid = false;
+}
+
+VirtIpAddrObj::~VirtIpAddrObj()
+{
+  TSVirtIpAddrEleDestroy(m_ele);
+}
+
+char *
+VirtIpAddrObj::formatEleToRule()
+{
+  if (!isValid()) {
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+    return NULL;
+  }
+
+  char *ip_str;
+  char buf[MAX_RULE_SIZE];
+  memset(buf, 0, MAX_RULE_SIZE);
+
+  ip_str = ip_addr_to_string(m_ele->ip_addr);
+  snprintf(buf, sizeof(buf), "%s %s %d", ip_str, m_ele->intr, m_ele->sub_intr);
+  ats_free(ip_str);
+
+  return ats_strdup(buf);
+}
+
+bool VirtIpAddrObj::isValid()
+{
+  if (m_ele->cfg_ele.error != TS_ERR_OKAY) {
+    m_valid = false;
+  }
+
+  if (!ccu_checkIpAddr(m_ele->ip_addr)) {
+    m_valid = false;
+  }
+
+  if (!m_ele->intr) {
+    m_valid = false;
+  }
+
+  if ((m_ele->sub_intr < 1) || (m_ele->sub_intr > 255)) {
+    m_valid = false;
+  }
+
+  if (!m_valid)
+    m_ele->cfg_ele.error = TS_ERR_INVALID_CONFIG_RULE;
+
+  return m_valid;
+}
+
+TSCfgEle *
+VirtIpAddrObj::getCfgEleCopy()
+{
+  return (TSCfgEle *) copy_virt_ip_addr_ele(m_ele);
+}
+
+
+/*****************************************************************
+ * CfgContext
+ *****************************************************************/
+CfgContext::CfgContext(TSFileNameT filename)
+{
+  m_file = filename;
+  m_ver = -1;
+}
+
+CfgContext::~CfgContext()
+{
+  CfgEleObj *ele;
+  while ((ele = m_eles.dequeue())) {
+    delete ele;
+  }
+}
+
+TSMgmtError CfgContext::addEle(CfgEleObj * ele)
+{
+  ink_assert(ele != NULL);
+  m_eles.enqueue(ele);          // enqueue CfgEleObj at end of Queue
+  return TS_ERR_OKAY;
+}
+
+TSMgmtError CfgContext::removeEle(CfgEleObj * ele)
+{
+  ink_assert(ele != NULL);
+  m_eles.remove(ele);
+  delete
+    ele;
+
+  return TS_ERR_OKAY;
+}
+
+TSMgmtError CfgContext::insertEle(CfgEleObj * ele, CfgEleObj * after_ele)
+{
+  ink_assert(ele != NULL && after_ele != NULL);
+  m_eles.insert(ele, after_ele);
+
+  return TS_ERR_OKAY;
+}
+
+// insert Ele at front of the Queue
+TSMgmtError CfgContext::pushEle(CfgEleObj * ele)
+{
+  ink_assert(ele != NULL);
+  m_eles.push(ele);
+
+  return TS_ERR_OKAY;
+}
diff --git a/mgmt/api/CfgContextImpl.h b/mgmt/api/CfgContextImpl.h
new file mode 100644
index 00000000..dd05314e
--- /dev/null
+++ b/mgmt/api/CfgContextImpl.h
@@ -0,0 +1,560 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***********************************************************************
+ * CfgContext.h
+ *
+ * Describes the CfgContext class. CfgContext has file name and set of Ele's
+ ***********************************************************************/
+
+#ifndef _CFG_CONTEXT_IMPL_H_
+#define _CFG_CONTEXT_IMPL_H_
+
+#include "mgmtapi.h"
+#include "CfgContextDefs.h"
+#include "GenericParser.h"      /* use for TokenList */
+
+#include "List.h"
+
+
+/**********************************************************************
+ * CfgEleObj
+ *
+ * abstract base class; basic element in a CfgContext
+ **********************************************************************/
+class CfgEleObj
+{
+public:
+  /* Each subclass must provide two constructors:
+     using INK<file>Ele or a TokenList */
+
+  virtual ~ CfgEleObj()
+  {
+  }                             // virtual destructor
+
+  virtual char *formatEleToRule() = 0;
+  virtual bool isValid() = 0;
+
+  /* these are implemented as inline functons by subclasses */
+  virtual TSCfgEle *getCfgEle() = 0;   /* returns actual ele */
+  virtual TSCfgEle *getCfgEleCopy() = 0;       /* returns copy of ele */
+  virtual TSRuleTypeT getRuleType() = 0;
+
+  LINK(CfgEleObj, link);
+
+protected:
+  bool m_valid;                 /* stores if Ele has valid fields; by default true */
+};
+
+/********************************************************************
+ * Ele Subclasses
+ ********************************************************************/
+/* Each subclass can be constructed from a TokenList (creates the Ele)
+ * or from passing in the Ele itself. Typically, objects with dynamically
+ * allocated memory should also have a copy constructor and an
+ * overloaded assignment operator. However, sine these subclasses function
+ * more as wrappers for the C based Ele structs, we only require that
+ * each subclass implements a function which returns a dynamic copy of
+ * its m_ele data member
+ */
+
+/* CommentEle */
+class CommentObj:public CfgEleObj
+{
+public:
+  CommentObj(char *comment);
+   ~CommentObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  INKCommentEle * m_ele;
+
+};
+
+/* cache.config ***************************************************/
+class CacheObj:public CfgEleObj
+{
+public:
+  CacheObj(TSCacheEle * ele);
+  CacheObj(TokenList * tokens); //creates the ele
+  ~CacheObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSCacheEle * m_ele;
+};
+
+/* congestion.config ***************************************************/
+class CongestionObj:public CfgEleObj
+{
+public:
+  CongestionObj(TSCongestionEle * ele);
+  CongestionObj(TokenList * tokens);    //creates the ele
+  ~CongestionObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSCongestionEle * m_ele;
+};
+
+/* hosting.config ************************************************/
+class HostingObj:public CfgEleObj
+{
+public:
+  HostingObj(TSHostingEle * ele);
+  HostingObj(TokenList * tokens);       //creates the ele
+  ~HostingObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSHostingEle * m_ele;
+};
+
+/* icp.config ************************************************/
+class IcpObj:public CfgEleObj
+{
+public:
+  IcpObj(TSIcpEle * ele);
+  IcpObj(TokenList * tokens);   //creates the ele
+  ~IcpObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSIcpEle * m_ele;
+};
+
+/* ip_allow.config    *********************************************/
+class IpAllowObj:public CfgEleObj
+{
+public:
+  IpAllowObj(TSIpAllowEle * ele);
+  IpAllowObj(TokenList * tokens);
+  ~IpAllowObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSIpAllowEle * m_ele;
+};
+
+/* logs_xml.config    ********************************************/
+class LogFilterObj:public CfgEleObj
+{
+public:
+  LogFilterObj(TSLogFilterEle * ele);
+  LogFilterObj(TokenList * tokens);
+  ~LogFilterObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSLogFilterEle * m_ele;
+};
+
+class LogFormatObj:public CfgEleObj
+{
+public:
+  LogFormatObj(TSLogFilterEle * ele);
+  LogFormatObj(TokenList * tokens);
+  ~LogFormatObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSLogFormatEle * m_ele;
+};
+
+/* logs.config ***************************************************/
+class LogObjectObj:public CfgEleObj
+{
+public:
+  LogObjectObj(TSLogObjectEle * ele);
+  LogObjectObj(TokenList * tokens);
+  ~LogObjectObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSLogObjectEle * m_ele;
+};
+
+
+/* parent.config       *******************************************/
+class ParentProxyObj:public CfgEleObj
+{
+public:
+  ParentProxyObj(TSParentProxyEle * ele);
+  ParentProxyObj(TokenList * tokens);
+  ~ParentProxyObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSParentProxyEle * m_ele;
+};
+
+/* volume.config    *******************************************/
+class VolumeObj:public CfgEleObj
+{
+public:
+  VolumeObj(TSVolumeEle * ele);
+  VolumeObj(TokenList * tokens);
+  ~VolumeObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSVolumeEle * m_ele;
+};
+
+/* plugin.config    *******************************************/
+class PluginObj:public CfgEleObj
+{
+public:
+  PluginObj(TSPluginEle * ele);
+  PluginObj(TokenList * tokens);
+  ~PluginObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSPluginEle * m_ele;
+};
+
+/* remap.config        *******************************************/
+class RemapObj:public CfgEleObj
+{
+public:
+  RemapObj(TSRemapEle * ele);
+  RemapObj(TokenList * tokens);
+  ~RemapObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSRemapEle * m_ele;
+};
+
+/* socks.config        *******************************************/
+class SocksObj:public CfgEleObj
+{
+public:
+  SocksObj(TSSocksEle * ele);
+  SocksObj(TokenList * tokens);
+  ~SocksObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSSocksEle * m_ele;
+};
+
+
+/* splitdns.config     *******************************************/
+class SplitDnsObj:public CfgEleObj
+{
+public:
+  SplitDnsObj(TSSplitDnsEle * ele);
+  SplitDnsObj(TokenList * tokens);
+  ~SplitDnsObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSSplitDnsEle * m_ele;
+};
+
+/* storage.config      *******************************************/
+class StorageObj:public CfgEleObj
+{
+public:
+  StorageObj(TSStorageEle * ele);
+  StorageObj(TokenList * tokens);
+  ~StorageObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSStorageEle * m_ele;
+};
+
+
+/* update.config       *******************************************/
+class UpdateObj:public CfgEleObj
+{
+public:
+  UpdateObj(TSUpdateEle * ele);
+  UpdateObj(TokenList * tokens);
+  ~UpdateObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSUpdateEle * m_ele;
+};
+
+/* vaddrs.config       *******************************************/
+class VirtIpAddrObj:public CfgEleObj
+{
+public:
+  VirtIpAddrObj(TSVirtIpAddrEle * ele);
+  VirtIpAddrObj(TokenList * tokens);
+  ~VirtIpAddrObj();
+
+  virtual char *formatEleToRule();
+  virtual bool isValid();
+  virtual TSCfgEle *getCfgEleCopy();
+  virtual TSCfgEle *getCfgEle()
+  {
+    return (TSCfgEle *) m_ele;
+  }
+  virtual TSRuleTypeT getRuleType()
+  {
+    return m_ele->cfg_ele.type;
+  }
+
+private:
+  TSVirtIpAddrEle * m_ele;
+};
+
+
+/*****************************************************************
+ * CfgContext
+ *****************************************************************/
+class CfgContext
+{
+public:
+  CfgContext(TSFileNameT filename);
+  ~CfgContext();
+
+  TSFileNameT getFilename()
+  {
+    return m_file;
+  }
+  int getVersion()
+  {
+    return m_ver;
+  }
+  void setVersion(int ver)
+  {
+    m_ver = ver;
+  }
+
+  CfgEleObj *first()
+  {
+    return m_eles.head;
+  }
+  CfgEleObj *next(CfgEleObj * here)
+  {
+    return (here->link).next;
+  }
+
+  TSMgmtError addEle(CfgEleObj * ele);     /* enqueue EleObj at end of Queue */
+  TSMgmtError removeEle(CfgEleObj * ele);
+  TSMgmtError insertEle(CfgEleObj * ele, CfgEleObj * after_ele);
+  TSMgmtError pushEle(CfgEleObj * ele);
+
+private:
+  TSFileNameT m_file;
+  int m_ver;                    /* version of the file read */
+  Queue<CfgEleObj> m_eles;
+};
+
+
+
+#endif
diff --git a/mgmt/api/CfgContextManager.cc b/mgmt/api/CfgContextManager.cc
new file mode 100644
index 00000000..2085a0e8
--- /dev/null
+++ b/mgmt/api/CfgContextManager.cc
@@ -0,0 +1,621 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: ContextManager.cc
+ * ------------------------------------------------------------------------
+ * Purpose:
+ * 1) CfgContext class manipulations
+ * 2) conversions from parser value tags into Ele value format
+ *
+ * Created by: Lan Tran
+ *
+ ***************************************************************************/
+#include "ink_platform.h"
+#include "ink_string.h"
+#include "CfgContextManager.h"
+#include "CfgContextUtils.h"
+#include "CoreAPI.h"
+#include "GenericParser.h"
+
+//--------------------------------------------------------------------------
+// Defines
+//--------------------------------------------------------------------------
+
+#define FORMAT_TO_RULE_ERROR "# ERROR: Can't convert Ele to rule format."
+
+/* ---------------------------------------------------------------
+ * CfgContextCreate
+ * ---------------------------------------------------------------
+ * Allocates memory for a CfgContext struct and initializes its members.
+ * Must pass in a valid file name type; TS_FNAME_UNDEFINED is
+ * considered valid.
+ */
+CfgContext *
+CfgContextCreate(TSFileNameT file)
+{
+  CfgContext *ctx = NULL;
+  ctx = new CfgContext(file);
+  return ctx;
+}
+
+/* ---------------------------------------------------------------
+ * CfgContextDestroy
+ * ---------------------------------------------------------------
+ * frees all memory allocated for the CfgContext
+ */
+TSMgmtError
+CfgContextDestroy(CfgContext * ctx)
+{
+  if (!ctx)
+    return TS_ERR_PARAMS;
+  delete ctx;
+  return TS_ERR_OKAY;
+}
+
+/* ---------------------------------------------------------------
+ * CfgContextCommit
+ * ---------------------------------------------------------------
+ * Convert CfgContext into file, and write the file.
+ * Return TS_ERR_FAIL if completely fail to commit changes (eg.
+ * write new file). Returns TS_ERR_INVALID_CONFIG_RULE if succeeded
+ * in commiting changes, but at least one rule was invalid.
+ * errRules is an optional argument - if specified, then a
+ * list of the indices of the invalid rules will be stored in it
+ */
+TSMgmtError
+CfgContextCommit(CfgContext * ctx, LLQ * errRules)
+{
+  int ret;
+  char *new_text = NULL;
+  char *rule = NULL;
+  CfgEleObj *ele;
+  int ver, size = 0, index;
+  int *iPtr;
+  TSMgmtError err = TS_ERR_OKAY;
+  int max_file_size = MAX_FILE_SIZE;
+  int len = 0;
+
+  ink_assert(ctx);
+  if (!ctx)
+    return TS_ERR_PARAMS;
+
+  new_text = (char *)ats_malloc(max_file_size + 1);
+  new_text[0] = '\0';
+  ele = ctx->first();
+  index = 0;
+  while (ele) {
+    rule = ele->formatEleToRule();      // use polymorphism
+    if (!rule) {
+      err = TS_ERR_INVALID_CONFIG_RULE;
+      rule = ats_strdup(FORMAT_TO_RULE_ERROR);
+      if (errRules) {
+        iPtr = (int *)ats_malloc(sizeof(int));
+        *iPtr = index;
+        enqueue(errRules, (void *) iPtr);
+      }
+    }
+    // write the rule to end of the file
+    len = strlen(rule);
+    size += len + 1;
+    if (size > max_file_size) {
+      max_file_size *= 2;
+      new_text = (char *)ats_realloc(new_text, max_file_size + 1);
+    }
+    ink_strlcat(new_text, rule, max_file_size + 1);
+    ink_strlcat(new_text, "\n", max_file_size + 1);
+
+    ats_free(rule);
+    if (ele->getRuleType() != TS_TYPE_COMMENT)
+      index++;
+    ele = ctx->next(ele);
+  }
+
+  // commit new file
+  ver = ctx->getVersion();
+  ret = WriteFile(ctx->getFilename(), new_text, size, ver);
+  ats_free(new_text);
+  if (ret != TS_ERR_OKAY)
+    return TS_ERR_FAIL;        // couldn't write file
+
+  return err;
+}
+
+
+/* ---------------------------------------------------------------
+ * CfgContextGet
+ * ---------------------------------------------------------------
+ * Read the file, get a copy of it, parse the file, convert the
+ * parse structure into ones which will be stored by ctx. The
+ * ctx should also store the version number of the file being read.
+ * If invalid rule, it is skipped and not added to the CfgContext.
+ */
+TSMgmtError
+CfgContextGet(CfgContext * ctx)
+{
+  TSMgmtError ret;
+  int size, ver;
+  char *old_text = NULL;
+  RuleList *rule_list = NULL;
+  CfgEleObj *ele = NULL;
+
+  ink_assert(ctx);
+  if (!ctx)
+    return TS_ERR_PARAMS;
+
+  // get copy of the file
+  ret = ReadFile(ctx->getFilename(), &old_text, &size, &ver);
+  if (ret != TS_ERR_OKAY) {
+    // TODO: Hmmm, this looks almost like a memory leak, why the strcmp ??
+    if (old_text && strcmp(old_text, "") != 0)
+      ats_free(old_text);          // need to free memory
+    return ret;                 // Pass the error code along
+  }
+  // store version number
+  ctx->setVersion(ver);
+
+  rule_list = new RuleList();
+  rule_list->parse(old_text, (ctx->getFilename()));
+
+  // iterate through each TokenList in rule_list
+  for (Rule * rule_node = rule_list->first(); rule_node; rule_node = rule_list->next(rule_node)) {
+    //rule_node->Print();
+    ele = create_ele_obj_from_rule_node(rule_node);
+    if (ele == NULL) {          // invalid rule; skip it
+      continue;
+    }
+
+    ret = ctx->addEle(ele);
+    if (ret != TS_ERR_OKAY) {
+      ats_free(old_text);        // need to free memory
+      return ret;
+    }
+  }
+  delete(rule_list);            // free RuleList memory
+  // TODO: Hmmm, this looks almost like a memory leak, why the strcmp ??
+  if (old_text && strcmp(old_text, "") != 0)
+    ats_free(old_text);            // need to free memory
+  return TS_ERR_OKAY;
+}
+
+
+
+/***************************************************************
+ * CfgContext Operations
+ ***************************************************************/
+/*--------------------------------------------------------------
+ * CfgContextGetCount
+ *--------------------------------------------------------------
+ * returns number of (non-comment) ele's in the CfgContext*;
+ * returns -1 if an error
+ */
+int
+CfgContextGetCount(CfgContext * ctx)
+{
+  CfgEleObj *curr_ele;
+  int count = 0;
+
+  ink_assert(ctx);
+  if (!ctx)
+    return -1;
+
+  // iterate CfgContext; return the first EleObj that's not a comment
+  curr_ele = ctx->first();      // get head of ele
+  while (curr_ele) {
+    if (curr_ele->getRuleType() != TS_TYPE_COMMENT) {
+      count++;                  // only count non-comments
+    }
+    curr_ele = ctx->next(curr_ele);
+  }
+
+  return count;
+}
+
+/*--------------------------------------------------------------
+ * CfgContextGetObjAt
+ *--------------------------------------------------------------
+ * user must typecast the TSCfgObj to appropriate TSObj before using;
+ * iterate through the CfgContext, until the count of NON-Comment ObjObj's
+ * equals index specified (remember to start counting from 0)
+ */
+CfgEleObj *
+CfgContextGetObjAt(CfgContext * ctx, int index)
+{
+  CfgEleObj *curr_ele;
+  int count = 0;                // start counting from 0
+
+  ink_assert(ctx);
+  if (!ctx)
+    return NULL;
+
+  // iterate through the ctx, keep count of all NON-Comment Obj Objects
+  curr_ele = ctx->first();      // get head of ele
+  while (curr_ele) {
+    if (curr_ele->getRuleType() == TS_TYPE_COMMENT) {  /* a comment ele */
+      curr_ele = ctx->next(curr_ele);
+      continue;
+    } else {
+      if (count == index) {     // got right ele
+        return curr_ele;
+      }
+      curr_ele = ctx->next(curr_ele);
+      count++;
+    }
+  }
+
+  return NULL;                  // invalid index
+}
+
+
+/*--------------------------------------------------------------
+ * CfgContextGetEleAt
+ *--------------------------------------------------------------
+ * user must typecast the TSCfgEle to appropriate TSEle before using;
+ * iterate through the CfgContext, until the count of NON-Comment EleObj's
+ * equals index specified (remember to start counting from 0)
+ */
+TSCfgEle *
+CfgContextGetEleAt(CfgContext * ctx, int index)
+{
+  TSCfgEle *cfg_ele;
+  CfgEleObj *curr_ele;
+  int count = 0;                // start counting from 0
+
+  ink_assert(ctx);
+  if (!ctx)
+    return NULL;
+
+  // iterate through the ctx, keep count of all NON-Comment Ele Objects
+  curr_ele = ctx->first();      // get head of ele
+  while (curr_ele) {
+    if (curr_ele->getRuleType() == TS_TYPE_COMMENT) {  /* a comment ele */
+      curr_ele = ctx->next(curr_ele);
+      continue;
+    } else {
+      if (count == index) {     // got right ele
+        //Debug("config", "Get ele at index = %d\n", index);
+        cfg_ele = curr_ele->getCfgEle();
+        return cfg_ele;
+      }
+      curr_ele = ctx->next(curr_ele);
+      count++;
+    }
+  }
+
+  return NULL;                  // invalid index
+}
+
+
+/*--------------------------------------------------------------
+ * CfgContextGetFirst
+ *--------------------------------------------------------------
+ * Returns pointer to first Non-comment Ele in the CfgContext.
+ * Used as part of iterator
+ */
+TSCfgEle *
+CfgContextGetFirst(CfgContext * ctx, TSCfgIterState * state)
+{
+  CfgEleObj *curr_ele;
+
+  ink_assert(ctx && state);
+  if (!ctx || !state)
+    return NULL;
+
+  // iterate; return the first CfgEleObj that's not a comment
+  curr_ele = ctx->first();      // get head of ele
+  while (curr_ele) {
+    if (curr_ele->getRuleType() == TS_TYPE_COMMENT) {  //a comment ele
+      curr_ele = ctx->next(curr_ele);
+      continue;
+    } else {
+      *state = curr_ele;
+      return (curr_ele->getCfgEle());
+    }
+  }
+
+  return NULL;
+}
+
+/*--------------------------------------------------------------
+ * CfgContextGetNext
+ *--------------------------------------------------------------
+ * Returns pointer to next Non-comment Ele in the CfgContext.
+ * Used as part of iterator.
+ */
+TSCfgEle *
+CfgContextGetNext(CfgContext * ctx, TSCfgIterState * state)
+{
+  CfgEleObj *curr_ele;
+
+  ink_assert(ctx && state);
+  if (!ctx || !state)
+    return NULL;
+
+  // iterate through the ctx, keep count of all NON-Comment Ele Objects
+  // when count == state->index, then return next ele
+  curr_ele = (CfgEleObj *) * state;
+  curr_ele = ctx->next(curr_ele);       // get next ele
+  while (curr_ele) {
+    if (curr_ele->getRuleType() != TS_TYPE_COMMENT) {  // a non-comment ele
+      *state = curr_ele;
+      return curr_ele->getCfgEle();
+    }
+    curr_ele = ctx->next(curr_ele);     // get next ele
+
+    /*
+       if (curr_ele->getRuleType() == TS_TYPE_COMMENT) { // a comment ele
+       continue;
+       } else {
+       *state = curr_ele;
+       return curr_ele->getCfgEle();
+       }
+       curr_ele = ctx->next(curr_ele); // get next ele
+     */
+  }
+
+  return NULL;                  // ERROR
+}
+
+
+/*--------------------------------------------------------------
+ * CfgContextMoveEleUp
+ *--------------------------------------------------------------
+ * Remove the EleObj at the specified index (but make a copy of it's m_ele
+ * first), and insert the copy at the position of index-1.
+ * THIS IS REALLY INEFFICIENT!!!
+ */
+TSMgmtError
+CfgContextMoveEleUp(CfgContext * ctx, int index)
+{
+  CfgEleObj *curr_ele_obj;
+  TSCfgEle *ele_copy = 0;      /* lv: just to make gcc happy */
+  int count = 0;                // start counting from 0
+  TSMgmtError ret;
+
+  ink_assert(ctx && index >= 0);
+  if (!ctx || index < 0)
+    return TS_ERR_PARAMS;
+
+  // moving the first Ele up does nothing
+  if (index == 0)
+    return TS_ERR_OKAY;
+
+  // retrieve the ELe and make a copy of it
+  curr_ele_obj = ctx->first();  // get head of ele
+  while (curr_ele_obj) {
+    if (curr_ele_obj->getRuleType() == TS_TYPE_COMMENT) {      // a comment ele
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      continue;
+    } else {
+      if (count == index) {
+        //make a copy of ele
+        ele_copy = curr_ele_obj->getCfgEleCopy();
+
+        // remove the ele
+        ctx->removeEle(curr_ele_obj);
+        break;
+      }
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      count++;
+    }
+  }
+  // reached end of CfgContext before hit index
+  if (count != index)
+    return TS_ERR_FAIL;
+
+  // reinsert  the ele at index-1
+  ret = CfgContextInsertEleAt(ctx, ele_copy, index - 1);
+
+  return ret;
+}
+
+/*--------------------------------------------------------------
+ * CfgContextMoveEleDown
+ *--------------------------------------------------------------
+ * Locate the EleObj at position index. Remove and delete the EleObj.
+ * Make a copy of the ele stored in the EleObj before deleting it and
+ * reinserts the new EleObj in the index+1 position.
+ */
+TSMgmtError
+CfgContextMoveEleDown(CfgContext * ctx, int index)
+{
+  CfgEleObj *curr_ele_obj;
+  TSCfgEle *ele_copy = 0;      /* lv: just to make gcc happy */
+  int count = 0;                // start counting from 0
+  TSMgmtError ret;
+  int tot_ele;
+
+  ink_assert(ctx);
+  if (!ctx)
+    return TS_ERR_PARAMS;
+
+  tot_ele = CfgContextGetCount(ctx);    // inefficient!
+  if (index<0 || index>= tot_ele)
+    return TS_ERR_PARAMS;
+
+  // moving the last ele down does nothing
+  if (index == (tot_ele - 1))
+    return TS_ERR_OKAY;
+
+  // retrieve the ELe and make a copy of it
+  curr_ele_obj = ctx->first();  // get head of ele
+  while (curr_ele_obj) {
+    if (curr_ele_obj->getRuleType() == TS_TYPE_COMMENT) {      /* a comment ele */
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      continue;
+    } else {
+      if (count == index) {
+        //make a copy of ele
+        ele_copy = curr_ele_obj->getCfgEleCopy();
+
+        // remove the ele
+        ctx->removeEle(curr_ele_obj);
+        break;
+      }
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      count++;
+    }
+  }
+  // reached end of CfgContext before hit index
+  if (count != index)
+    return TS_ERR_FAIL;
+
+  // reinsert  the ele at index+1
+  ret = CfgContextInsertEleAt(ctx, ele_copy, index + 1);
+
+  return ret;
+}
+
+/*--------------------------------------------------------------
+ * CfgContextAppendEle
+ *--------------------------------------------------------------
+ * Appends the ele to the end of the CfgContext. First must
+ * wrap the ele in an CfgEleObj class before can append to CfgContext
+ */
+TSMgmtError
+CfgContextAppendEle(CfgContext * ctx, TSCfgEle * ele)
+{
+  CfgEleObj *ele_obj;
+
+  ele_obj = create_ele_obj_from_ele(ele);
+  ctx->addEle(ele_obj);
+
+  return TS_ERR_OKAY;
+}
+
+/*--------------------------------------------------------------
+ * CfgContextInsertEleAt
+ *--------------------------------------------------------------
+ * Inserts the ele into specified position of the CfgContext.  First must
+ * wrap the ele in an CfgEleObj class before can insert.
+ * If there are comments, before the index specified, the
+ * ele will be inserted after the comments.
+ * Note: In the special case of inserting in the first position of the list;
+ * if there are comments before the current non-comment CfgEleObj,
+ * then can just push the new Ele onto the CfgContext. If there are
+ * comments before the first non-comment CfgEleObj, then insert the
+ * new EleObj right after the last comment
+ */
+TSMgmtError
+CfgContextInsertEleAt(CfgContext * ctx, TSCfgEle * ele, int index)
+{
+  CfgEleObj *ele_obj, *curr_ele_obj, *last_comment = NULL;
+  int count = 0;
+  TSMgmtError err = TS_ERR_OKAY;
+  bool has_comment = false;
+
+  // need to convert the ele into appropriate Ele object type
+  ele_obj = create_ele_obj_from_ele(ele);
+
+  // iterate through the ctx, keep count of all NON-Comment Ele Objects
+  // when count == index, then insert the new ele object there
+  curr_ele_obj = ctx->first();  // get head of ele
+  while (curr_ele_obj) {
+    if (curr_ele_obj->getRuleType() == TS_TYPE_COMMENT) {      /* a comment ele */
+      last_comment = curr_ele_obj;
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      has_comment = true;
+      continue;
+    } else {
+      // special case if inserting the ele at head of CfgContext
+      if (index == 0) {
+        if (has_comment) {
+          // insert the ele after the last comment
+          err = ctx->insertEle(ele_obj, last_comment);
+          return err;
+        } else {                // has no comments preceding first ele object
+          err = ctx->pushEle(ele_obj);
+          return err;
+        }
+      }
+
+      if (count == index - 1) { // insert the ele after this one
+        err = ctx->insertEle(ele_obj, curr_ele_obj);
+        return err;             // DONE!
+      }
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      count++;
+    }
+  }
+
+  return TS_ERR_FAIL;          // invalid index
+}
+
+/*--------------------------------------------------------------
+ * CfgContextRemoveEleAt
+ *--------------------------------------------------------------
+ * Removes the non-comment Ele at the specified index. start couting
+ * non-comment ele's from 0, eg. if index = 3, that means remove the
+ * fourth non-comment ELe in the CfgContext
+ */
+TSMgmtError
+CfgContextRemoveEleAt(CfgContext * ctx, int index)
+{
+  CfgEleObj *curr_ele_obj;
+  int count = 0;
+
+  // iterate through the ctx, keep count of all NON-Comment Ele Objects
+  // when count == index, then insert the new ele object there
+  curr_ele_obj = ctx->first();  // get head of ele
+  while (curr_ele_obj) {
+    if (curr_ele_obj->getRuleType() == TS_TYPE_COMMENT) {      /* a comment ele */
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      continue;
+    } else {
+      if (count == index) {     // reached the Ele
+        ctx->removeEle(curr_ele_obj);
+        return TS_ERR_OKAY;    // DONE!
+      }
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      count++;
+    }
+  }
+
+  return TS_ERR_FAIL;          // invalid index
+}
+
+/*--------------------------------------------------------------
+ * CfgContextRemoveAll
+ *--------------------------------------------------------------
+ * Removes all the Ele rules from Cfg Context leaving all the
+ * comments behind
+ */
+TSMgmtError
+CfgContextRemoveAll(CfgContext * ctx)
+{
+  CfgEleObj *curr_ele_obj, *ele_obj_ptr;
+
+  curr_ele_obj = ctx->first();
+  while (curr_ele_obj) {
+    if (curr_ele_obj->getRuleType() == TS_TYPE_COMMENT) {      // skip comments
+      curr_ele_obj = ctx->next(curr_ele_obj);
+      continue;
+    } else {
+      ele_obj_ptr = ctx->next(curr_ele_obj);
+      ctx->removeEle(curr_ele_obj);
+    }
+    curr_ele_obj = ele_obj_ptr;
+  }
+
+  return TS_ERR_OKAY;
+}
diff --git a/mgmt/api/CfgContextManager.h b/mgmt/api/CfgContextManager.h
new file mode 100644
index 00000000..a5b136ec
--- /dev/null
+++ b/mgmt/api/CfgContextManager.h
@@ -0,0 +1,77 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: CfgContextManager.h (based on FileOp.h)
+ * ------------------------------------------------------------------------
+ * Purpose:
+ *    Implements some of TSCfgContext functionality in the API; deals only
+ *    with the CfgContext class though, not the TSCfgContext; typically
+ *    the TSCfgContext function is a wrapper for the function whose purpose
+ *    is to make the appropriate typecast to a CfgContext*
+ *
+ ***************************************************************************/
+
+#ifndef _CFG_CONTEXT_MANAGER_H
+#define _CFG_CONTEXT_MANAGER_H
+
+#include "mgmtapi.h"
+#include "CfgContextImpl.h"
+#include "CfgContextDefs.h"
+
+
+/***************************************************************************
+ * CfgContext Operations
+ ***************************************************************************/
+/* based on file to change, dequeues the add/rm rule, and translates it
+ * into CoreAPI terms; because the file name stored , knows the format
+ * of the rules in the queue
+ */
+CfgContext *CfgContextCreate(TSFileNameT filetype);
+TSMgmtError CfgContextDestroy(CfgContext * ctx);
+TSMgmtError CfgContextCommit(CfgContext * ctx, LLQ * errRules = NULL);
+TSMgmtError CfgContextGet(CfgContext * ctx);
+
+
+/***************************************************************************
+ * CfgContext Operations
+ ***************************************************************************/
+/* returns number of ele's in the CfgContext * */
+int CfgContextGetCount(CfgContext * ctx);
+
+/* user must typecast the TSCfgEle to appropriate TSEle before using */
+TSCfgEle *CfgContextGetEleAt(CfgContext * ctx, int index);
+CfgEleObj *CfgContextGetObjAt(CfgContext * ctx, int index);
+
+TSCfgEle *CfgContextGetFirst(CfgContext * ctx, TSCfgIterState * state);
+TSCfgEle *CfgContextGetNext(CfgContext * ctx, TSCfgIterState * state);
+
+TSMgmtError CfgContextMoveEleUp(CfgContext * ctx, int index);
+TSMgmtError CfgContextMoveEleDown(CfgContext * ctx, int index);
+
+TSMgmtError CfgContextAppendEle(CfgContext * ctx, TSCfgEle * ele);
+TSMgmtError CfgContextInsertEleAt(CfgContext * ctx, TSCfgEle * ele, int index);
+TSMgmtError CfgContextRemoveEleAt(CfgContext * ctx, int index);
+TSMgmtError CfgContextRemoveAll(CfgContext * ctx);
+
+#endif
diff --git a/mgmt/api/CfgContextUtils.cc b/mgmt/api/CfgContextUtils.cc
new file mode 100644
index 00000000..599d13fa
--- /dev/null
+++ b/mgmt/api/CfgContextUtils.cc
@@ -0,0 +1,2854 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "ink_platform.h"
+#include "CfgContextUtils.h"
+#include "Tokenizer.h"
+/***************************************************************************
+ * Conversion Functions
+ ***************************************************************************/
+/* ---------------------------------------------------------------------------
+ * string_to_ip_addr_ele
+ * ---------------------------------------------------------------------------
+ * Converts ip address string format to an TSIpAddrEle.
+ * Determines if single/range, cidr/not-cidr based on format of string.
+ *
+ * if SINGLE =  ip_a/cidr_a
+ * if RANGE =   ip_a/cidr_a-ip_b/cidr_b (possible to have spaces next to dash)
+ * Returns NULL if invalid ele (eg. if ip's are invalid)
+ */
+TSIpAddrEle *
+string_to_ip_addr_ele(const char *str)
+{
+  Tokenizer range_tokens(RANGE_DELIMITER_STR);
+  Tokenizer cidr_tokens(CIDR_DELIMITER_STR);
+  Tokenizer cidr_tokens2(CIDR_DELIMITER_STR);
+  TSIpAddrEle *ele;
+  const char *const_ip_a, *const_ip_b;
+  char *ip_a = NULL, *ip_b = NULL;
+  int numTokens = 0;
+  char buf[MAX_BUF_SIZE];
+
+  //ink_assert(str);
+  if (!str)
+    return NULL;
+
+  ele = TSIpAddrEleCreate();
+  if (!ele)
+    return NULL;
+
+  memset(buf, 0, MAX_BUF_SIZE);
+  snprintf(buf, sizeof(buf), "%s", str);
+
+  // determine if range or single type
+  range_tokens.Initialize(buf, COPY_TOKS);
+  numTokens = range_tokens.getNumber();
+  if (numTokens == 1) {         // SINGLE TYPE
+    ele->type = TS_IP_SINGLE;
+    // determine if cidr type
+    cidr_tokens.Initialize(buf, COPY_TOKS);
+    numTokens = cidr_tokens.getNumber();
+    if (numTokens == 1) {       // Single, NON-CIDR TYPE
+      ele->ip_a = string_to_ip_addr(str);
+    } else {                    // Single, CIDR TYPE
+      if (!isNumber(cidr_tokens[1]))
+        goto Lerror;
+      ele->ip_a = string_to_ip_addr(cidr_tokens[0]);
+      ele->cidr_a = ink_atoi(cidr_tokens[1]);
+    }
+    if (!ele->ip_a)             // ERROR: Invalid ip
+      goto Lerror;
+  } else {                      // RANGE TYPE
+    ele->type = TS_IP_RANGE;
+    const_ip_a = range_tokens[0];
+    const_ip_b = range_tokens[1];
+    ip_a = ats_strdup(const_ip_a);
+    ip_b = ats_strdup(const_ip_b);
+
+    // determine if ip's are cidr type; only test if ip_a is cidr, assume both are same
+    cidr_tokens.Initialize(ip_a, COPY_TOKS);
+    numTokens = cidr_tokens.getNumber();
+    if (numTokens == 1) {       // Range, NON-CIDR TYPE
+      ele->ip_a = string_to_ip_addr(ip_a);
+      ele->ip_b = string_to_ip_addr(ip_b);
+    } else {                    // Range, CIDR TYPE */
+      ele->ip_a = string_to_ip_addr(cidr_tokens[0]);
+      ele->cidr_a = ink_atoi(cidr_tokens[1]);
+      cidr_tokens2.Initialize(ip_b, COPY_TOKS);
+      ele->ip_b = string_to_ip_addr(cidr_tokens2[0]);
+      ele->cidr_b = ink_atoi(cidr_tokens2[1]);
+      if (!isNumber(cidr_tokens[1]) || !isNumber(cidr_tokens2[1]))
+        goto Lerror;
+    }
+    if (!ele->ip_a || !ele->ip_b)       // ERROR: invalid IP
+      goto Lerror;
+  }
+
+  ats_free(ip_a);
+  ats_free(ip_b);
+  return ele;
+
+Lerror:
+  ats_free(ip_a);
+  ats_free(ip_b);
+  TSIpAddrEleDestroy(ele);
+
+  return NULL;
+}
+
+
+/* ----------------------------------------------------------------------------
+ * ip_addr_ele_to_string
+ * ---------------------------------------------------------------------------
+ * Converts an  TSIpAddrEle to following string format:
+ * Output:
+ * if SINGLE =             ip_a/cidr_a
+ * if RANGE =              ip_a/cidr_a-ip_b/cidr_b
+ * If there is no cidr =   ip_a-ip_b
+ * Returns NULL if invalid ele (needs to check that the ip's are valid too)
+ */
+char *
+ip_addr_ele_to_string(TSIpAddrEle * ele)
+{
+  char buf[MAX_BUF_SIZE];
+  char *str, *ip_a_str = NULL, *ip_b_str = NULL;
+
+  //ink_assert(ele);
+  if (!ele)
+    goto Lerror;
+
+  memset(buf, 0, MAX_BUF_SIZE);
+
+  if (ele->ip_a == TS_INVALID_IP_ADDR)
+    goto Lerror;                // invalid ip_addr
+
+  if (ele->type == TS_IP_SINGLE) {     // SINGLE TYPE
+    ip_a_str = ip_addr_to_string(ele->ip_a);
+    if (!ip_a_str)              // ERROR: invalid IP address
+      goto Lerror;
+    if (ele->cidr_a != TS_INVALID_IP_CIDR) {   // a cidr type
+      snprintf(buf, sizeof(buf), "%s%c%d", ip_a_str, CIDR_DELIMITER, ele->cidr_a);
+    } else {                    // not cidr type
+      snprintf(buf, sizeof(buf), "%s", ip_a_str);
+    }
+
+    ats_free(ip_a_str);
+    str = ats_strdup(buf);
+
+    return str;
+  } else if (ele->type == TS_IP_RANGE) {       // RANGE TYPE
+    ip_a_str = ip_addr_to_string(ele->ip_a);
+    ip_b_str = ip_addr_to_string(ele->ip_b);
+
+    if (!ip_a_str || !ip_b_str)
+      goto Lerror;
+
+    if (ele->cidr_a != TS_INVALID_IP_CIDR && ele->cidr_b != TS_INVALID_IP_CIDR) {
+      // a cidr type
+      snprintf(buf, sizeof(buf), "%s%c%d%c%s%c%d",
+               ip_a_str, CIDR_DELIMITER, ele->cidr_a, RANGE_DELIMITER, ip_b_str, CIDR_DELIMITER, ele->cidr_b);
+    } else {                    // not cidr type
+      snprintf(buf, sizeof(buf), "%s%c%s", ip_a_str, RANGE_DELIMITER, ip_b_str);
+    }
+    ats_free(ip_a_str);
+    ats_free(ip_b_str);
+    str = ats_strdup(buf);
+
+    return str;
+  }
+
+Lerror:
+  ats_free(ip_a_str);
+  ats_free(ip_b_str);
+  return NULL;
+}
+
+/* ----------------------------------------------------------------------------
+ * ip_addr_to_string
+ * ---------------------------------------------------------------------------
+ * Converts an  TSIpAddr (char*) to dotted decimal string notation. Allocates
+ * memory for the new TSIpAddr.
+ * Returns NULL if invalid TSIpAddr
+ */
+char *
+ip_addr_to_string(TSIpAddr ip)
+{
+  //ink_assert(ip != TS_INVALID_IP_ADDR);
+  if (ip == TS_INVALID_IP_ADDR) {
+    return NULL;
+  }
+  if (!ccu_checkIpAddr(ip)) {
+    return NULL;
+  }
+  return ats_strdup((char *) ip);
+}
+
+/* ----------------------------------------------------------------------------
+ * string_to_ip_addr
+ * ---------------------------------------------------------------------------
+ * Converts an ip address in dotted-decimal string format into a string;
+ * allocates memory for string. If IP is invalid, then returns TS_INVALID_IP_ADDR.
+ */
+TSIpAddr
+string_to_ip_addr(const char *str)
+{
+  //ink_assert(str);
+  if (!ccu_checkIpAddr(str))
+    return TS_INVALID_IP_ADDR;
+
+  char *copy;
+  copy = ats_strdup(str);
+  return (TSIpAddr) copy;
+}
+
+/* ---------------------------------------------------------------
+ * ip_addr_list_to_string
+ * ---------------------------------------------------------------
+ * converts TSIpAddrList <==> ip_addr1<delim>ip_addr2<delim>ip_addr3, ...
+ * Returns TSIpAddrList with original elements.
+ * If encounters invalid TSIpAddrEle, returns NULL.
+ */
+char *
+ip_addr_list_to_string(IpAddrList * list, const char *delimiter)
+{
+  char buf[MAX_BUF_SIZE];
+  int buf_pos = 0;
+  TSIpAddrEle *ip_ele;
+  char *ip_str, *new_str;
+  int num, i;
+
+  //ink_assert(list && delimiter);
+  if (!list || !delimiter)
+    return NULL;
+
+  num = queue_len((LLQ *) list);
+
+  for (i = 0; i < num; i++) {
+    ip_ele = (TSIpAddrEle *) dequeue((LLQ *) list);    //read next ip
+    ip_str = ip_addr_ele_to_string(ip_ele);
+
+    if (!ip_str) {
+      enqueue((LLQ *) list, ip_ele);
+      return NULL;
+    }
+    if (i == num - 1)
+      snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s", ip_str);
+    else
+      snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s%s", ip_str, delimiter);
+    buf_pos = strlen(buf);
+    ats_free(ip_str);
+
+    enqueue((LLQ *) list, ip_ele);      // return ip to list
+  }
+
+  new_str = ats_strdup(buf);
+
+  return new_str;
+}
+
+/* ---------------------------------------------------------------
+ * string_to_ip_addr_list
+ * ---------------------------------------------------------------
+ * Converts ip_addr1<delim>ip_addr2<delim>ip_addr3, ...==> TSIpAddrList
+ * Does checking to make sure that each ip_addr is valid; if encounter
+ * an invalid ip addr, then returns TS_INVALID_LIST
+ */
+TSIpAddrList
+string_to_ip_addr_list(const char *str_list, const char *delimiter)
+{
+  Tokenizer tokens(delimiter);
+  int numToks, i;
+  TSIpAddrList ip_list;
+  TSIpAddrEle *ip_ele;
+
+  //ink_assert(str_list && delimiter);
+  if (!str_list || !delimiter)
+    return TS_INVALID_LIST;
+
+  tokens.Initialize(str_list);
+  numToks = tokens.getNumber();
+
+  ip_list = TSIpAddrListCreate();
+
+  for (i = 0; i < numToks; i++) {
+    ip_ele = string_to_ip_addr_ele(tokens[i]);
+    if (ip_ele) {
+      TSIpAddrListEnqueue(ip_list, ip_ele);
+    } else {                    // Error: invalid IP
+      TSIpAddrListDestroy(ip_list);
+      return TS_INVALID_LIST;
+    }
+  }
+  return ip_list;
+}
+
+/* ---------------------------------------------------------------
+ * port_list_to_string (REPLACE BY sprintf_ports)
+ * ---------------------------------------------------------------
+ * Purpose: prints a list of ports in a PortList into string delimited format
+ * Input:  ports - the queue of TSPortEle *'s.
+ * Output: port_0<delim>port_1<delim>...<delim>port_n
+ *         (each port can refer to a port range, eg 80-90)
+ *         Return NULL if encounter invalid port or empty port list
+ */
+char *
+port_list_to_string(PortList * ports, const char *delimiter)
+{
+  int num_ports;
+  size_t pos = 0;
+  int i, psize;
+  TSPortEle *port_ele;
+  char buf[MAX_BUF_SIZE];
+  char *str;
+
+  //ink_assert(ports && delimiter);
+  if (!ports || !delimiter)
+    goto Lerror;
+
+  num_ports = queue_len((LLQ *) ports);
+  if (num_ports <= 0) {         // no ports specified
+    goto Lerror;
+  }
+  // now list all the ports, including ranges
+  for (i = 0; i < num_ports; i++) {
+    port_ele = (TSPortEle *) dequeue((LLQ *) ports);
+    if (!ccu_checkPortEle(port_ele)) {
+      enqueue((LLQ *) ports, port_ele); // return TSPortEle to list
+      goto Lerror;
+    }
+
+    if (pos < sizeof(buf) && (psize = snprintf(buf + pos, sizeof(buf) - pos, "%d", port_ele->port_a)) > 0) {
+      pos += psize;
+    }
+    if (port_ele->port_b != TS_INVALID_PORT) { //. is this a range
+      // add in range delimiter & end of range
+      if (pos < sizeof(buf) &&
+          (psize = snprintf(buf + pos, sizeof(buf) - pos, "%c%d", RANGE_DELIMITER, port_ele->port_b)) > 0) {
+        pos += psize;
+      }
+    }
+
+    if (i != num_ports - 1) {
+      if (pos < sizeof(buf) && (psize = snprintf(buf + pos, sizeof(buf) - pos, "%s", delimiter))> 0) {
+        pos += psize;
+      }
+    }
+
+    enqueue((LLQ *) ports, port_ele);   // return TSPortEle to list
+  }
+
+  str = ats_strdup(buf);
+  return str;
+
+Lerror:
+  return NULL;
+}
+
+/* ---------------------------------------------------------------
+ * string_to_port_list
+ * ---------------------------------------------------------------
+ * Converts port1<delim>port2<delim>port3, ...==> TSPortList
+ * Does checking to make sure that each ip_addr is valid; if encounter
+ * an invalid ip addr, then returns TST_INVALID_LIST
+ */
+TSPortList
+string_to_port_list(const char *str_list, const char *delimiter)
+{
+  Tokenizer tokens(delimiter);
+  int numToks, i;
+  TSPortList port_list;
+  TSPortEle *port_ele;
+
+  //ink_assert(str_list && delimiter);
+  if (!str_list || !delimiter)
+    return TS_INVALID_LIST;
+
+  tokens.Initialize(str_list);
+
+  numToks = tokens.getNumber();
+
+  port_list = TSPortListCreate();
+
+  for (i = 0; i < numToks; i++) {
+    port_ele = string_to_port_ele(tokens[i]);
+    if (port_ele) {
+      TSPortListEnqueue(port_list, port_ele);
+    } else {                    // error - invalid port ele
+      TSPortListDestroy(port_list);
+      return TS_INVALID_LIST;
+    }
+  }
+
+  return port_list;
+}
+
+/* ---------------------------------------------------------------------------
+ * port_ele_to_string
+ * ---------------------------------------------------------------------------
+ * Converts a port_ele to string format: <port_a> or <port_a>-<port_b>
+ * Returns NULL if invalid PortEle
+ */
+char *
+port_ele_to_string(TSPortEle * ele)
+{
+  char buf[MAX_BUF_SIZE];
+  char *str;
+
+  //ink_assert(ele);
+  if (!ele || !ccu_checkPortEle(ele))
+    return NULL;
+
+  memset(buf, 0, MAX_BUF_SIZE);
+
+  if (ele->port_b == TS_INVALID_PORT) {        // Not a range
+    snprintf(buf, sizeof(buf), "%d", ele->port_a);
+  } else {
+    snprintf(buf, sizeof(buf), "%d%c%d", ele->port_a, RANGE_DELIMITER, ele->port_b);
+  }
+
+  str = ats_strdup(buf);
+  return str;
+}
+
+/*----------------------------------------------------------------------------
+ * string_to_port_ele
+ *---------------------------------------------------------------------------
+ * Converts a string formatted port_ele into actual port_ele. Returns NULL if
+ * invalid port(s). It is okay to have a single port specified.
+ */
+TSPortEle *
+string_to_port_ele(const char *str)
+{
+  Tokenizer tokens(RANGE_DELIMITER_STR);
+  TSPortEle *ele;
+  char copy[MAX_BUF_SIZE];
+
+  //ink_assert(str);
+  if (!str)
+    return NULL;
+
+  memset(copy, 0, MAX_BUF_SIZE);
+  snprintf(copy, sizeof(copy), "%s", str);
+
+  ele = TSPortEleCreate();
+  if (tokens.Initialize(copy, COPY_TOKS) > 2)
+    goto Lerror;
+  if (tokens.getNumber() == 1) {        // Not a Range of ports
+    if (!isNumber(str))
+      goto Lerror;
+    ele->port_a = ink_atoi(str);
+  } else {
+    if (!isNumber(tokens[0]) || !isNumber(tokens[1]))
+      goto Lerror;
+    ele->port_a = ink_atoi(tokens[0]);
+    ele->port_b = ink_atoi(tokens[1]);
+  }
+
+  if (!ccu_checkPortEle(ele)) {
+    goto Lerror;
+  }
+
+  return ele;
+
+Lerror:
+  TSPortEleDestroy(ele);
+  return NULL;
+}
+
+/*----------------------------------------------------------------------------
+ * string_list_to_string
+ *----------------------------------------------------------------------------
+ * Converts str list to delimited string. Does not alter the
+ * StringList passed in.
+ * eg. str1<delim>str2<delim>str3...
+ */
+char *
+string_list_to_string(TSStringList str_list, const char *delimiter)
+{
+  char buf[MAX_BUF_SIZE];
+  size_t buf_pos = 0;
+  int i, numElems, psize;
+  char *str_ele, *list_str;
+
+  //ink_assert(str_list != TS_INVALID_LIST && delimiter);
+  if (str_list == TS_INVALID_LIST || !delimiter)
+    return NULL;
+
+  memset(buf, 0, MAX_BUF_SIZE);
+  numElems = queue_len((LLQ *) str_list);
+  for (i = 0; i < numElems; i++) {
+    str_ele = (char *) dequeue((LLQ *) str_list);
+
+    if (i == numElems - 1) {    // the last element shouldn't print comma
+      if (buf_pos<sizeof(buf) && (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s", str_ele))> 0)
+        buf_pos += psize;
+    } else {
+      if (buf_pos < sizeof(buf) &&
+          (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s%s", str_ele, delimiter)) > 0)
+        buf_pos += psize;
+    }
+
+    enqueue((LLQ *) str_list, str_ele);
+  }
+
+  list_str = ats_strdup(buf);
+  return list_str;
+}
+
+/* ---------------------------------------------------------------
+ * string_to_string_list
+ * ---------------------------------------------------------------
+ * Converts port1<delim>port2<delim>port3, ...==> TSStringList
+ * Does checking to make sure that each ip_addr is valid; if encounter
+ * an invalid ip addr, then returns INVALID_HANDLE
+ */
+TSStringList
+string_to_string_list(const char *str, const char *delimiter)
+{
+  Tokenizer tokens(delimiter);
+  tokens.Initialize(str);
+
+  //ink_assert(str && delimiter);
+  if (!str || !delimiter)
+    return TS_INVALID_LIST;
+
+  TSStringList str_list = TSStringListCreate();
+  for (int i = 0; i < tokens.getNumber(); i++) {
+    TSStringListEnqueue(str_list, ats_strdup(tokens[i]));
+  }
+
+  return str_list;
+}
+
+/*----------------------------------------------------------------------------
+ * int_list_to_string
+ *----------------------------------------------------------------------------
+ * TSList(of char*'s only)==> elem1<delimiter>elem2<delimiter>elem3<delimiter>
+ * Note: the string always ends with the delimiter
+ * The list and its elements are not changed in any way.
+ * Returns NULL if error.
+ */
+char *
+int_list_to_string(TSIntList list, const char *delimiter)
+{
+  char buf[MAX_BUF_SIZE];
+  size_t buf_pos = 0;
+  int numElems, i, psize;
+  int *elem;
+
+  //ink_assert(list != TS_INVALID_LIST && delimiter);
+  if (list == TS_INVALID_LIST || !delimiter)
+    return NULL;
+
+
+  numElems = queue_len((LLQ *) list);
+
+  memset(buf, 0, MAX_BUF_SIZE);
+  for (i = 0; i < numElems; i++) {
+    elem = (int *) dequeue((LLQ *) list);
+    if (i == numElems - 1) {
+      if (buf_pos<sizeof(buf) && (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%d", *elem))> 0)
+        buf_pos += psize;
+    } else {
+      if (buf_pos < sizeof(buf) &&
+          (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%d%s", *elem, delimiter)) > 0)
+        buf_pos += psize;
+    }
+    enqueue((LLQ *) list, elem);
+  }
+  return ats_strdup(buf);
+}
+
+/* ---------------------------------------------------------------
+ * string_to_int_list
+ * ---------------------------------------------------------------
+ * converts domain1<delim>domain2<delim>domain3, ... ==> TSList
+ * Does checking to make sure that each integer is valid; if encounter
+ * an invalid int, then returns TS_INVALID_LIST
+ */
+TSIntList
+string_to_int_list(const char *str_list, const char *delimiter)
+{
+  Tokenizer tokens(delimiter);
+  int numToks, i;
+  TSList list;
+  int *ele;
+
+  //ink_assert (str_list  && delimiter);
+  if (!str_list || !delimiter)
+    return TS_INVALID_LIST;
+
+  tokens.Initialize(str_list);
+
+  numToks = tokens.getNumber();
+  list = TSIntListCreate();
+
+  for (i = 0; i < numToks; i++) {
+    if (!isNumber(tokens[i]))
+      goto Lerror;
+    ele = (int *)ats_malloc(sizeof(int));
+    *ele = ink_atoi(tokens[i]);       // What about we can't convert? ERROR?
+    TSIntListEnqueue(list, ele);
+  }
+
+  return list;
+
+Lerror:
+  TSIntListDestroy(list);
+  return TS_INVALID_LIST;
+}
+
+
+/* ---------------------------------------------------------------
+ * string_to_domain_list
+ * ---------------------------------------------------------------
+ * Converts domain1<delim>domain2<delim>domain3, ... ==> TSDomainList
+ * Returns TS_INVALID_LIST if encounter an invalid Domain.
+ */
+TSDomainList
+string_to_domain_list(const char *str_list, const char *delimiter)
+{
+  Tokenizer tokens(delimiter);
+  int numToks, i;
+  TSDomainList list;
+  TSDomain *ele;
+
+  //ink_assert(str_list && delimiter);
+  if (!str_list || !delimiter)
+    return TS_INVALID_LIST;
+
+  tokens.Initialize(str_list);
+
+  numToks = tokens.getNumber();
+
+  list = TSDomainListCreate();
+
+  for (i = 0; i < numToks; i++) {
+    ele = string_to_domain(tokens[i]);
+    if (ele) {
+      TSDomainListEnqueue(list, ele);
+    } else {                    // Error: invalid domain
+      TSDomainListDestroy(list);
+      return TS_INVALID_LIST;
+    }
+  }
+
+  return list;
+}
+
+
+/*----------------------------------------------------------------------------
+ * domain_list_to_string
+ *----------------------------------------------------------------------------
+ * TSList(of char*'s only)==> elem1<delimiter>elem2<delimiter>elem3<delimiter>
+ * Note: the string always ends with the delimiter
+ * The list and its elements are not changed in any way.
+ * Returns NULL if encounter an invalid TSDomain.
+ */
+char *
+domain_list_to_string(TSDomainList list, const char *delimiter)
+{
+  char buf[MAX_BUF_SIZE];
+  size_t buf_pos = 0;
+  int numElems, i, psize;
+  char *list_str, *dom_str;
+  TSDomain *domain;
+
+  //ink_assert(list != TS_INVALID_LIST && delimiter);
+  if (list == TS_INVALID_LIST || !delimiter)
+    return NULL;
+
+  numElems = queue_len((LLQ *) list);
+
+  memset(buf, 0, MAX_BUF_SIZE);
+
+  for (i = 0; i < numElems; i++) {
+    domain = (TSDomain *) dequeue((LLQ *) list);
+
+    dom_str = domain_to_string(domain);
+    if (!dom_str) {
+      return NULL;
+    }
+    if (i == numElems - 1) {    // the last element shouldn't print comma
+      if (buf_pos<sizeof(buf) && (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s", dom_str))> 0)
+        buf_pos += psize;
+    } else {
+      if (buf_pos < sizeof(buf) &&
+          (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%s%s", dom_str, delimiter)) > 0)
+        buf_pos += psize;
+    }
+
+    ats_free(dom_str);
+    enqueue((LLQ *) list, domain);
+  }
+
+  list_str = ats_strdup(buf);
+  return list_str;
+}
+
+/*----------------------------------------------------------------------------
+ * domain_to_string
+ *----------------------------------------------------------------------------
+ * Converts an TSDomain into string format, eg. www.host.com:8080
+ * Return NULL if invalid TSDomain (eg. missing domain value).
+ */
+char *
+domain_to_string(TSDomain * domain)
+{
+  char buf[MAX_BUF_SIZE];
+  char *dom_str;
+
+  //ink_assert(domain);
+  if (!domain)
+    return NULL;
+
+  if (domain->domain_val) {
+    if (domain->port != TS_INVALID_PORT)       // host:port
+      snprintf(buf, sizeof(buf), "%s:%d", domain->domain_val, domain->port);
+    else                        // host
+      snprintf(buf, sizeof(buf), "%s", domain->domain_val);
+  } else {
+    return NULL;                // invalid TSDomain
+  }
+
+  dom_str = ats_strdup(buf);
+
+  return dom_str;
+}
+
+/*----------------------------------------------------------------------------
+ * string_to_domain
+ *----------------------------------------------------------------------------
+ * Converts string format, eg. www.host.com:8080, into TSDomain.
+ * The string can consist of just the host (which can be a name or an IP)
+ * or of the host and port.
+ * Return NULL if invalid TSDomain (eg. missing domain value).
+ */
+TSDomain *
+string_to_domain(const char *str)
+{
+  TSDomain *dom;
+  char *token, *remain, *token_pos;
+  char buf[MAX_BUF_SIZE];
+
+  //ink_assert(str);
+  if (!str)
+    return NULL;
+
+  dom = TSDomainCreate();
+
+  // get hostname
+  ink_strlcpy(buf, str, sizeof(buf));
+  token = strtok_r(buf, ":", &token_pos);
+  remain = token_pos;
+  if (token)
+    dom->domain_val = ats_strdup(token);
+  else
+    goto Lerror;
+
+  // get port, if exists
+  if (remain) {
+    // check if the "remain" consist of all integers
+    if (!isNumber(remain))
+      goto Lerror;
+    dom->port = ink_atoi(remain);
+  } else {
+    dom->port = TS_INVALID_PORT;
+  }
+
+  return dom;
+
+Lerror:
+  TSDomainDestroy(dom);
+  return NULL;
+}
+
+/* ---------------------------------------------------------------
+ * pdest_sspec_to_string
+ * ---------------------------------------------------------------
+ * Converts the TSPrimeDest, primary dest, secondary spec struct
+ * into string format: <pdT>:pdst_val:sspec1:sspec2:...:
+ * <pdT> - dest_domain, dest_host, dest_ip, url_regex
+ * even if sspec is missing the delimter is included; so if no
+ * sspecs, then : ::: ::: will appear
+ */
+char *
+pdest_sspec_to_string(TSPrimeDestT pd, char *pd_val, TSSspec * sspec)
+{
+  char buf[MAX_BUF_SIZE];
+  size_t buf_pos = 0;
+  int psize;
+  char hour_a[3], hour_b[3], min_a[3], min_b[3];
+  char *src_ip, *str;
+
+  //ink_assert(pd != TS_PD_UNDEFINED && pd_val && sspec);
+  if (pd == TS_PD_UNDEFINED || !pd_val || !sspec)
+    return NULL;
+
+  memset(buf, 0, MAX_BUF_SIZE);
+
+  do {
+    // push in primary destination
+    switch (pd) {
+    case TS_PD_DOMAIN:
+      psize = snprintf(buf, sizeof(buf), "dest_domain=%s ", pd_val);
+      break;
+    case TS_PD_HOST:
+      psize = snprintf(buf, sizeof(buf), "dest_host=%s ", pd_val);
+      break;
+    case TS_PD_IP:
+      psize = snprintf(buf, sizeof(buf), "dest_ip=%s ", pd_val);
+      break;
+    case TS_PD_URL_REGEX:
+      psize = snprintf(buf, sizeof(buf), "url_regex=%s ", pd_val);
+      break;
+    case TS_PD_URL:
+      psize = snprintf(buf, sizeof(buf), "url=%s ", pd_val);
+      break;
+    default:
+      psize = 0;
+      // Handled here:
+      // TS_PD_UNDEFINED
+      break;
+    }
+    if (psize > 0)
+      buf_pos += psize;
+    if (buf_pos + 1 >= sizeof(buf))
+      break;
+
+    // if there are secondary specifiers
+    if (sspec) {
+      // convert the time into a string, eg. 8 to "08"
+      if (sspec->time.hour_a == 0) {
+        snprintf(hour_a, sizeof(hour_a), "00");
+      } else {
+        if (sspec->time.hour_a < 10) {
+          snprintf(hour_a, sizeof(hour_a), "0%d", sspec->time.hour_a);
+        } else {
+          snprintf(hour_a, sizeof(hour_a), "%d", sspec->time.hour_a);
+        }
+      }
+      if (sspec->time.min_a == 0) {
+        snprintf(min_a, sizeof(min_a), "00");
+      } else {
+        if (sspec->time.min_a < 10) {
+          snprintf(min_a, sizeof(min_a), "0%d", sspec->time.min_a);
+        } else {
+          snprintf(min_a, sizeof(min_a), "%d", sspec->time.min_a);
+        }
+      }
+      if (sspec->time.hour_b == 0) {
+        snprintf(hour_b, sizeof(hour_b), "00");
+      } else {
+        if (sspec->time.hour_b < 10) {
+          snprintf(hour_b, sizeof(hour_b), "0%d", sspec->time.hour_b);
+        } else {
+          snprintf(hour_b, sizeof(hour_b), "%d", sspec->time.hour_b);
+        }
+      }
+      if (sspec->time.min_b == 0) {
+        snprintf(min_b, sizeof(min_b), "00");
+      } else {
+        if (sspec->time.min_b < 10) {
+          snprintf(min_b, sizeof(min_b), "0%d", sspec->time.min_b);
+        } else {
+          snprintf(min_b, sizeof(min_b), "%d", sspec->time.min_b);
+        }
+      }
+
+      if (!(sspec->time.hour_a == 0 && sspec->time.min_a == 0 && sspec->time.hour_b == 0 && sspec->time.min_b == 0)) {
+        // time is specified
+        if (buf_pos < sizeof(buf) &&
+            (psize =
+             snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "time=%s:%s-%s:%s ", hour_a, min_a, hour_b, min_b)) > 0)
+          buf_pos += psize;
+      }
+      // src_ip
+      if (sspec->src_ip != TS_INVALID_IP_ADDR) {
+        src_ip = ip_addr_to_string(sspec->src_ip);
+        if (!src_ip) {
+          return NULL;
+        }
+        if (buf_pos<sizeof(buf) && (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "src_ip=%s ", src_ip))> 0)
+          buf_pos += psize;
+        ats_free(src_ip);
+      }
+      // prefix?
+      if (sspec->prefix) {
+        if (buf_pos < sizeof(buf) &&
+            (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "prefix=%s ", sspec->prefix)) > 0)
+          buf_pos += psize;
+      }
+      // suffix?
+      if (sspec->suffix) {
+        if (buf_pos < sizeof(buf) &&
+            (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "suffix=%s ", sspec->suffix)) > 0)
+          buf_pos += psize;
+      }
+      // port?
+      if (sspec->port) {
+        char *portStr = port_ele_to_string(sspec->port);
+        if (portStr) {
+          if (buf_pos < sizeof(buf) &&
+              (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "port=%s ", portStr)) > 0)
+            buf_pos += psize;
+          ats_free(portStr);
+        }
+      }
+      // method
+      if (buf_pos < sizeof(buf)) {
+        switch (sspec->method) {
+        case TS_METHOD_GET:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "method=get ");
+          break;
+        case TS_METHOD_POST:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "method=post ");
+          break;
+        case TS_METHOD_PUT:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "method=put ");
+          break;
+        case TS_METHOD_TRACE:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "method=trace ");
+          break;
+        case TS_METHOD_PUSH:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "method=PUSH ");
+          break;
+        default:
+          psize = 0;
+          break;
+        }
+        if (psize > 0)
+          buf_pos += psize;
+      } else
+        break;
+
+      // scheme
+      if (buf_pos < sizeof(buf)) {
+        switch (sspec->scheme) {
+        case TS_SCHEME_NONE:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%c", DELIMITER);
+          break;
+        case TS_SCHEME_HTTP:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "scheme=http ");
+          break;
+        case TS_SCHEME_HTTPS:
+          psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "scheme=https ");
+          break;
+        default:
+          psize = 0;
+          break;
+        }
+        if (psize > 0)
+          buf_pos += psize;
+      }
+    }
+  } while (0);
+
+  str = ats_strdup(buf);
+  return str;
+}
+
+
+/*----------------------------------------------------------------------------
+ * string_to_pdss_format
+ *----------------------------------------------------------------------------
+ * <pd_type>#<pd_value>#<sspecs> --> TSPdSsFormat
+ * NOTE that the entire data line, including the action type is being passed in
+ */
+TSMgmtError
+string_to_pdss_format(const char *str, TSPdSsFormat * pdss)
+{
+  Tokenizer tokens(DELIMITER_STR);
+  Tokenizer time_tokens(":-");
+  char copy[MAX_BUF_SIZE];
+
+  //ink_assert(str && pdss);
+  if (!str || !pdss)
+    return TS_ERR_PARAMS;
+
+  memset(copy, 0, MAX_BUF_SIZE);
+  snprintf(copy, sizeof(copy), "%s", str);
+
+  tokens.Initialize(copy, ALLOW_EMPTY_TOKS);
+
+  // pd type
+  if (strcmp(tokens[1], "dest_domain") == 0) {
+    pdss->pd_type = TS_PD_DOMAIN;
+  } else if (strcmp(tokens[1], "dest_host") == 0) {
+    pdss->pd_type = TS_PD_HOST;
+  } else if (strcmp(tokens[1], "dest_ip") == 0) {
+    pdss->pd_type = TS_PD_IP;
+  } else if (strcmp(tokens[1], "url_regex") == 0) {
+    pdss->pd_type = TS_PD_URL_REGEX;
+  } else if (strcmp(tokens[1], "url") == 0) {
+    pdss->pd_type = TS_PD_URL;
+  } else {
+    goto Lerror;
+  }
+
+  // pd_value
+  if (!tokens[2])
+    goto Lerror;
+  pdss->pd_val = ats_strdup(tokens[2]);
+
+  // check secondary specifiers; exists only if not empty string
+  // time
+  if (strlen(tokens[3]) > 0) {
+    if (string_to_time_struct(tokens[3], &(pdss->sec_spec)) != TS_ERR_OKAY)
+      goto Lerror;
+  }
+  // src_ip
+  if (strlen(tokens[4]) > 0) {
+    pdss->sec_spec.src_ip = ats_strdup(tokens[4]);
+  }
+  // prefix
+  if (strlen(tokens[5]) > 0) {
+    pdss->sec_spec.prefix = ats_strdup(tokens[5]);
+  }
+  // suffix
+  if (strlen(tokens[6]) > 0) {
+    pdss->sec_spec.suffix = ats_strdup(tokens[6]);
+  }
+  // port
+  if (strlen(tokens[7]) > 0) {  // no port
+    pdss->sec_spec.port = string_to_port_ele(tokens[7]);
+  }
+  // method
+  if (strlen(tokens[8]) > 0) {
+    pdss->sec_spec.method = string_to_method_type(tokens[8]);
+  }
+  // scheme
+  if (strlen(tokens[9]) > 0) {
+    pdss->sec_spec.scheme = string_to_scheme_type(tokens[9]);
+  }
+  return TS_ERR_OKAY;
+
+Lerror:
+  return TS_ERR_FAIL;
+}
+
+
+/*----------------------------------------------------------------------------
+ * hms_time_to_string
+ *----------------------------------------------------------------------------
+ * Converts an TSHmsTime structure to string format: eg. 5h15m20s
+ */
+char *
+hms_time_to_string(TSHmsTime time)
+{
+  char *str;
+  char buf[MAX_BUF_SIZE];
+  size_t buf_pos = 0;
+  int psize = 0;
+
+  memset(buf, 0, MAX_BUF_SIZE);
+  if (time.d > 0 && buf_pos < sizeof(buf) &&
+      (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%dd", time.d)) > 0)
+    buf_pos += psize;
+  if (time.h > 0 && buf_pos < sizeof(buf) &&
+      (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%dh", time.h)) > 0)
+    buf_pos += psize;
+  if (time.m > 0 && buf_pos < sizeof(buf) &&
+      (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%dm", time.m)) > 0)
+    buf_pos += psize;
+  if (time.s > 0 && buf_pos < sizeof(buf) &&
+      (psize = snprintf(buf + buf_pos, sizeof(buf) - buf_pos, "%ds", time.s)) > 0)
+    buf_pos += psize;
+
+  str = ats_strdup(buf);
+
+  return str;
+}
+
+/*----------------------------------------------------------------------------
+ * string_to_hms_time
+ *----------------------------------------------------------------------------
+ * Convert ?d?h?m?s ==> TSHmsTime
+ * Returns TS_ERR_FAIL if invalid hms format, eg. if there are invalid
+ * characters, eg. "10xh", "10h15m30s34", or repeated values, eg. "10h15h"
+ */
+TSMgmtError
+string_to_hms_time(const char *str, TSHmsTime * time)
+{
+  int i, pos = 0;
+  int len;
+  char unit[10];
+  bool valid = false;
+
+  //ink_assert(str && time);
+  if (!str || !time)
+    return TS_ERR_PARAMS;
+
+  memset(unit, 0, 10);
+  len = strlen(str);
+  time->d = time->h = time->m = time->s = 0;
+  for (i = 0; i < len; i++) {
+    valid = false;
+    if ((*str) == 'd') {
+      if (time->d > 0 || !isNumber(unit))
+        goto Lerror;
+      time->d = ink_atoi(unit);
+      memset(unit, 0, 10);
+      pos = 0;
+      valid = true;
+    } else if ((*str) == 'h') {
+      if (time->h > 0 || !isNumber(unit))
+        goto Lerror;
+      time->h = ink_atoi(unit);
+      memset(unit, 0, 10);
+      pos = 0;
+      valid = true;
+    } else if ((*str) == 'm') {
+      if (time->m > 0 || !isNumber(unit))
+        goto Lerror;
+      time->m = ink_atoi(unit);
+      memset(unit, 0, 10);
+      pos = 0;
+      valid = true;
+    } else if ((*str) == 's') {
+      if (time->s > 0 || !isNumber(unit))
+        goto Lerror;
+      time->s = ink_atoi(unit);
+      memset(unit, 0, 10);
+      pos = 0;
+      valid = true;
+    } else {
+      unit[pos] = *str;
+      pos++;
+    }
+
+    ++str;
+  }
+
+  if (!valid)
+    goto Lerror;
+  return TS_ERR_OKAY;
+
+Lerror:
+  return TS_ERR_FAIL;
+}
+
+/*----------------------------------------------------------------------------
+ * string_to_time_struct
+ *----------------------------------------------------------------------------
+ * convert string "09:00-23:00" to time struct
+ *  struct {
+ *   int hour_a;
+ *   int min_a;
+ *   int hour_b;
+ *   int min_b;
+ *  } time
+ * Returns TS_ERR_FAIL if invalid time string.
+ */
+TSMgmtError
+string_to_time_struct(const char *str, TSSspec * sspec)
+{
+  Tokenizer time_tokens(":-");
+
+  if (time_tokens.Initialize(str) != 4) {
+    return TS_ERR_FAIL;
+  }
+
+  if (strcmp(time_tokens[0], "00") == 0) {
+    sspec->time.hour_a = 0;
+  } else {
+    if (!isNumber(time_tokens[0]))
+      goto Lerror;
+    sspec->time.hour_a = ink_atoi(time_tokens[0]);
+  }
+  if (strcmp(time_tokens[1], "00") == 0) {
+    sspec->time.min_a = 0;
+  } else {
+    if (!isNumber(time_tokens[1]))
+      goto Lerror;
+    sspec->time.min_a = ink_atoi(time_tokens[1]);
+  }
+  if (strcmp(time_tokens[2], "00") == 0) {
+    sspec->time.hour_b = 0;
+  } else {
+    if (!isNumber(time_tokens[2]))
+      goto Lerror;
+    sspec->time.hour_b = ink_atoi(time_tokens[2]);
+  }
+  if (strcmp(time_tokens[3], "00") == 0) {
+    sspec->time.min_b = 0;
+  } else {
+    if (!isNumber(time_tokens[3]))
+      goto Lerror;
+    sspec->time.min_b = ink_atoi(time_tokens[3]);
+  }
+
+  // check valid time values
+  if (!ccu_checkTimePeriod(sspec))
+    goto Lerror;
+
+  return TS_ERR_OKAY;
+
+Lerror:
+  return TS_ERR_FAIL;
+}
+
+
+/*----------------------------------------------------------------------------
+ * string_to_header_type
+ *----------------------------------------------------------------------------
+ * string ==> TSHdrT
+ */
+TSHdrT
+string_to_header_type(const char *str)
+{
+  //ink_assert(str);
+  if (!str)
+    return TS_HDR_UNDEFINED;
+
+  if (strcmp(str, "date") == 0) {
+    return TS_HDR_DATE;
+  } else if (strcmp(str, "host") == 0) {
+    return TS_HDR_HOST;
+  } else if (strcmp(str, "cookie") == 0) {
+    return TS_HDR_COOKIE;
+  } else if (strcmp(str, "client_ip") == 0) {
+    return TS_HDR_CLIENT_IP;
+  }
+
+  return TS_HDR_UNDEFINED;
+}
+
+char *
+header_type_to_string(TSHdrT hdr)
+{
+  // header type
+  switch (hdr) {
+  case TS_HDR_DATE:
+    return ats_strdup("date");
+  case TS_HDR_HOST:
+    return ats_strdup("host");
+  case TS_HDR_COOKIE:
+    return ats_strdup("cookie");
+  case TS_HDR_CLIENT_IP:
+    return ats_strdup("client_ip");
+  default:
+    break;
+  }
+
+  return NULL;
+}
+
+/*----------------------------------------------------------------------------
+ * string_to_scheme_type
+ *----------------------------------------------------------------------------
+ * converts scheme string into a TSSchemeT type
+ */
+TSSchemeT
+string_to_scheme_type(const char *scheme)
+{
+  if (strcasecmp(scheme, "http") == 0) {
+    return TS_SCHEME_HTTP;
+  } else if (strcasecmp(scheme, "https") == 0) {
+    return TS_SCHEME_HTTPS;
+  }
+  return TS_SCHEME_UNDEFINED;
+}
+
+
+char *
+scheme_type_to_string(TSSchemeT scheme)
+{
+  switch (scheme) {
+  case TS_SCHEME_HTTP:
+    return ats_strdup("http");
+  case TS_SCHEME_HTTPS:
+    return ats_strdup("https");
+  default:
+    break;
+  }
+
+  return NULL;
+}
+
+/*----------------------------------------------------------------------------
+ * string_to_method_type
+ *----------------------------------------------------------------------------
+ * converts scheme string into a TSSchemeT type
+ */
+TSMethodT
+string_to_method_type(const char *method)
+{
+  if (strcasecmp(method, "get") == 0) {
+    return TS_METHOD_GET;
+  } else if (strcasecmp(method, "post") == 0) {
+    return TS_METHOD_POST;
+  } else if (strcasecmp(method, "put") == 0) {
+    return TS_METHOD_PUT;
+  } else if (strcasecmp(method, "trace") == 0) {
+    return TS_METHOD_TRACE;
+  } else if (strcasecmp(method, "push") == 0) { // could be "push" or "PUSH"
+    return TS_METHOD_PUSH;
+  }
+
+  return TS_METHOD_UNDEFINED;
+}
+
+char *
+method_type_to_string(TSMethodT method)
+{
+  switch (method) {
+  case TS_METHOD_GET:
+    return ats_strdup("get");
+  case TS_METHOD_POST:
+    return ats_strdup("post");
+  case TS_METHOD_PUT:
+    return ats_strdup("put");
+  case TS_METHOD_TRACE:
+    return ats_strdup("trace");
+  case TS_METHOD_PUSH:
+    return ats_strdup("push");
+  default:
+    break;
+  }
+
+  return NULL;
+}
+
+/*----------------------------------------------------------------------------
+ * connect_type_to_string
+ *----------------------------------------------------------------------------
+ */
+char *
+connect_type_to_string(TSConnectT conn)
+{
+  switch (conn) {
+  case TS_CON_UDP:
+    return ats_strdup("udp");
+  case TS_CON_TCP:
+    return ats_strdup("tcp");
+  default:
+    break;
+  }
+  return NULL;
+}
+
+TSConnectT
+string_to_connect_type(const char *conn)
+{
+  if (strcmp(conn, "tcp") == 0) {
+    return TS_CON_TCP;
+  } else {
+    return TS_CON_UDP;
+  }
+
+  return TS_CON_UNDEFINED;
+}
+
+/*----------------------------------------------------------------------------
+ * multicast_type_to_string
+ *----------------------------------------------------------------------------
+ */
+char *
+multicast_type_to_string(TSMcTtlT mc)
+{
+  switch (mc) {
+  case TS_MC_TTL_SINGLE_SUBNET:
+    return ats_strdup("single_subnet");
+  case TS_MC_TTL_MULT_SUBNET:
+    return ats_strdup("multiple_subnet");
+  default:
+    break;
+  }
+  return NULL;
+}
+
+/* -------------------------------------------------------------------------
+ * string_to_round_robin_type
+ * -------------------------------------------------------------------------
+ */
+TSRrT
+string_to_round_robin_type(const char *rr)
+{
+  if (strcmp(rr, "true") == 0)
+    return TS_RR_TRUE;
+  else if (strcmp(rr, "false") == 0)
+    return TS_RR_FALSE;
+  else if (strcmp(rr, "strict") == 0)
+    return TS_RR_STRICT;
+
+  return TS_RR_UNDEFINED;
+}
+
+char *
+round_robin_type_to_string(TSRrT rr)
+{
+  switch (rr) {
+  case TS_RR_TRUE:
+    return ats_strdup("true");
+  case TS_RR_FALSE:
+    return ats_strdup("false");
+  case TS_RR_STRICT:
+    return ats_strdup("strict");
+  default:
+    break;
+  }
+
+  return NULL;
+}
+
+/*----------------------------------------------------------------------------
+ * filename_to_string
+ *----------------------------------------------------------------------------
+ * TSFileNameT ==> string
+ */
+const char *
+filename_to_string(TSFileNameT file)
+{
+  switch (file) {
+  case TS_FNAME_CACHE_OBJ:    return "cache.config";
+  case TS_FNAME_CONGESTION:   return "congestion.config";
+  case TS_FNAME_HOSTING:      return "hosting.config";
+  case TS_FNAME_ICP_PEER:     return "icp.config";
+  case TS_FNAME_IP_ALLOW:     return "ip_allow.config";
+  case TS_FNAME_LOGS_XML:     return "logs_xml.config";
+  case TS_FNAME_PARENT_PROXY: return "parent.config";
+  case TS_FNAME_VOLUME:       return "volume.config";
+  case TS_FNAME_PLUGIN:       return "plugin.config";
+  case TS_FNAME_REMAP:        return "remap.config";
+  case TS_FNAME_SOCKS:        return "socks.config";
+  case TS_FNAME_SPLIT_DNS:    return "splitdns.config";
+  case TS_FNAME_STORAGE:      return "storage.config";
+  case TS_FNAME_UPDATE_URL:   return "update.config";
+  case TS_FNAME_VADDRS:       return "vaddrs.config";
+  default:                     /* no such config file */
+    return NULL;
+  }
+}
+
+/* -------------------------------------------------------------------------
+ * string_to_congest_scheme_type
+ * -------------------------------------------------------------------------
+ */
+TSCongestionSchemeT
+string_to_congest_scheme_type(const char *scheme)
+{
+  if (strcmp(scheme, "per_ip") == 0) {
+    return TS_HTTP_CONGEST_PER_IP;
+  } else if (strcmp(scheme, "per_host") == 0) {
+    return TS_HTTP_CONGEST_PER_HOST;
+  }
+
+  return TS_HTTP_CONGEST_UNDEFINED;
+}
+
+/* -------------------------------------------------------------------------
+ * string_to_admin_acc_type
+ * -------------------------------------------------------------------------
+ */
+TSAccessT
+string_to_admin_acc_type(const char *access)
+{
+  if (strcmp(access, "none") == 0) {
+    return TS_ACCESS_NONE;
+  } else if (strcmp(access, "monitor_only") == 0) {
+    return TS_ACCESS_MONITOR;
+  } else if (strcmp(access, "monitor_config_view") == 0) {
+    return TS_ACCESS_MONITOR_VIEW;
+  } else if (strcmp(access, "monitor_config_change") == 0) {
+    return TS_ACCESS_MONITOR_CHANGE;
+  }
+
+  return TS_ACCESS_UNDEFINED;
+}
+
+char *
+admin_acc_type_to_string(TSAccessT access)
+{
+  switch (access) {
+  case TS_ACCESS_NONE:
+    return ats_strdup("none");
+  case TS_ACCESS_MONITOR:
+    return ats_strdup("monitor_only");
+  case TS_ACCESS_MONITOR_VIEW:
+    return ats_strdup("monitor_config_view");
+  case TS_ACCESS_MONITOR_CHANGE:
+    return ats_strdup("monitor_config_change");
+  default:
+    break;
+  }
+
+  return NULL;
+}
+
+
+/***************************************************************************
+ * Tokens-to-Struct Converstion Functions
+ ***************************************************************************/
+/* -------------------------------------------------------------------------
+ * tokens_to_pdss_format
+ * -------------------------------------------------------------------------
+ * Pass in the TokenList and a pointer to first Token to start iterating from.
+ * Iterates through the tokens, checking
+ * for tokens that are either primary destination specifiers and secondary
+ * specfiers. Returns pointer to the last valid pointer; eg. the last sec
+ * spec that was in the list. If there are no primary dest or sec specs,
+ * then just returns same pointer originally passed in.
+ *
+ * Returns NULL, if the first token IS NOT a  Primary Dest Specifier
+ */
+Token *
+tokens_to_pdss_format(TokenList * tokens, Token * first_tok, TSPdSsFormat * pdss)
+{
+  Token *tok, *last_tok;
+  int i = 0;
+  const char *sspecs[NUM_SEC_SPECS] = { "time", "src_ip", "prefix", "suffix", "port", "method", "scheme", "tag" };
+
+  //ink_assert(tokens && first_tok && pdss);
+  if (!tokens || !first_tok || !pdss)
+    return NULL;
+
+  //tokens->Print();
+
+  // first token must be primary destination specifier
+  if (strcmp(first_tok->name, "dest_domain") == 0) {
+    pdss->pd_type = TS_PD_DOMAIN;
+  } else if (strcmp(first_tok->name, "dest_host") == 0) {
+    pdss->pd_type = TS_PD_HOST;
+  } else if (strcmp(first_tok->name, "dest_ip") == 0) {
+    pdss->pd_type = TS_PD_IP;
+  } else if (strcmp(first_tok->name, "url_regex") == 0) {
+    pdss->pd_type = TS_PD_URL_REGEX;
+  } else if (strcmp(first_tok->name, "url") == 0) {
+    pdss->pd_type = TS_PD_URL;
+  } else {
+    return NULL;                //INVALID primary destination specifier
+  }
+  pdss->pd_val = ats_strdup(first_tok->value);
+
+
+  // iterate through tokens checking for sec specifiers
+  // state determines which sec specifier being checked
+  // the state is only set if there's a sec spec match
+  last_tok = first_tok;
+  tok = tokens->next(first_tok);
+  while (tok) {
+
+    bool matchFound = false;
+    for (i = 0; i < NUM_SEC_SPECS; i++) {
+      if (strcmp(tok->name, sspecs[i]) == 0) {  // sec spec
+        matchFound = true;
+        switch (i) {
+        case 0:                // time
+          // convert the time value
+          string_to_time_struct(tok->value, &(pdss->sec_spec));
+          goto next_token;
+        case 1:                // src_ip
+          pdss->sec_spec.src_ip = ats_strdup(tok->value);
+          goto next_token;
+        case 2:                // prefix
+          pdss->sec_spec.prefix = ats_strdup(tok->value);
+          goto next_token;
+        case 3:                // suffix
+          pdss->sec_spec.suffix = ats_strdup(tok->value);
+          goto next_token;
+        case 4:                // port
+          pdss->sec_spec.port = string_to_port_ele(tok->value);
+          goto next_token;
+        case 5:                // method
+          pdss->sec_spec.method = string_to_method_type(tok->value);
+          goto next_token;
+        case 6:                // scheme
+          pdss->sec_spec.scheme = string_to_scheme_type(tok->value);
+          goto next_token;
+        default:
+          // This should never happen
+          break;
+        }
+      }                         // end if statement
+    }                           // end for loop
+
+    // No longer in the secondary specifer region,
+    // return the last valid secondary specifer
+    if (!matchFound) {
+      return last_tok;
+    }
+
+  next_token:                  // Get the next token
+    last_tok = tok;
+    tok = tokens->next(tok);
+
+  }                             // end while loop
+
+  return NULL;
+}
+
+/***************************************************************************
+ * Validation Functions
+ ***************************************************************************/
+
+/* -------------------------------------------------------------------------
+ * isNumber
+ * -------------------------------------------------------------------------
+ * Returns true if the entire string is numerical
+ */
+bool
+isNumber(const char *strNum)
+{
+  for (int i = 0; strNum[i] != '\0'; i++) {
+    if (!isdigit(strNum[i])) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+/* -------------------------------------------------------------------------
+ * ccu_checkIpAddr (from WebFileEdit.cc)
+ * -------------------------------------------------------------------------
+ *   Checks to see if the passed in string represents a valid
+ *     ip address in dot notation (ie 209.1.33.20)
+ *   If the min_addr and max_addr are specified, then it checks
+ *   that the ip address falls within the range; Otherwise
+ *   the min_addr = 0.0.0.0 and max_addr = 255.255.255.255
+ *
+ *   Returns true if it does and false if it does not
+ */
+bool
+ccu_checkIpAddr(const char *addr, const char *min_addr, const char *max_addr)
+{
+  Tokenizer addrToks(".");
+  Tokenizer minToks(".");
+  Tokenizer maxToks(".");
+  int len, addrQ, minQ, maxQ;
+
+  if (!addr || !min_addr || !max_addr)
+    return false;
+  // BZ47440
+  // truncate any leading or trailing white spaces from addr,
+  // which can occur if IP is from a list of IP addresses
+  char *new_addr = chopWhiteSpaces_alloc((char *) addr);
+  if (new_addr == NULL)
+    return false;
+
+  if ((addrToks.Initialize(new_addr, ALLOW_EMPTY_TOKS)) != 4 ||
+      (minToks.Initialize((char *) min_addr, ALLOW_EMPTY_TOKS)) != 4 ||
+      (maxToks.Initialize((char *) max_addr, ALLOW_EMPTY_TOKS)) != 4) {
+    ats_free(new_addr);
+    return false;               // Wrong number of parts
+  }
+  // IP can't end in a "." either
+  len = strlen(new_addr);
+  if (new_addr[len - 1] == '.') {
+    ats_free(new_addr);
+    return false;
+  }
+  // Check all four parts of the ip address to make
+  //  sure that they are valid
+  for (int i = 0; i < 4; i++) {
+    if (!isNumber(addrToks[i])) {
+      ats_free(new_addr);
+      return false;
+    }
+    // coverity[secure_coding]
+    if (sscanf(addrToks[i], "%d", &addrQ) != 1 ||
+        sscanf(minToks[i], "%d", &minQ) != 1 || sscanf(maxToks[i], "%d", &maxQ) != 1) {
+      ats_free(new_addr);
+      return false;
+    }
+
+    if (addrQ<minQ || addrQ> maxQ) {
+      ats_free(new_addr);
+      return false;
+    }
+  }
+
+  ats_free(new_addr);
+  return true;
+}
+
+/* ----------------------------------------------------------------------------
+ * ccu_checkIpAddrEle
+ * ---------------------------------------------------------------------------
+ * very similar to the ip_addr_ele_to_string function
+ */
+bool
+ccu_checkIpAddrEle(TSIpAddrEle * ele)
+{
+  if (!ele || ele->ip_a == TS_INVALID_IP_ADDR)
+    return false;
+
+  if (ele->type == TS_IP_SINGLE) {     // SINGLE TYPE
+    return (ccu_checkIpAddr(ele->ip_a));
+  } else if (ele->type == TS_IP_RANGE) {       // RANGE TYPE
+    return (ccu_checkIpAddr(ele->ip_a) && ccu_checkIpAddr(ele->ip_b));
+  } else {
+    return false;
+  }
+}
+
+bool
+ccu_checkPortNum(int port)
+{
+  return ((port > 0) && (port < 65535));        // What is max. port number?
+}
+
+// port_b can be "unspecified"; however if port_b is specified, it must
+// be greater than port_a
+bool
+ccu_checkPortEle(TSPortEle * ele)
+{
+  if (!ele)
+    return false;
+
+  if (ele->port_b == 0) {       // single port
+    return (ccu_checkPortNum(ele->port_a));
+  } else {                      // range of ports
+    if (ele->port_a >= ele->port_b)
+      return false;
+    return (ccu_checkPortNum(ele->port_a) && ccu_checkPortNum(ele->port_b));
+  }
+}
+
+/* ---------------------------------------------------------------
+ * checkPdSspec
+ * ---------------------------------------------------------------
+ * must have a prim dest value spsecified and have valid prim dest type
+ */
+bool
+ccu_checkPdSspec(TSPdSsFormat pdss)
+{
+  if (pdss.pd_type != TS_PD_DOMAIN && pdss.pd_type != TS_PD_HOST &&
+      pdss.pd_type != TS_PD_IP && pdss.pd_type != TS_PD_URL_REGEX) {
+    goto Lerror;
+  }
+
+  if (!pdss.pd_val) {
+    goto Lerror;
+  }
+  // primary destination cannot have spaces
+  if (strstr(pdss.pd_val, " ")) {
+    goto Lerror;
+  }
+  // if pdest is IP type, check if valid IP (could be single or range)
+  if (pdss.pd_type == TS_PD_IP) {
+    TSIpAddrEle *ip = string_to_ip_addr_ele(pdss.pd_val);
+    if (!ip)
+      goto Lerror;
+    else
+      TSIpAddrEleDestroy(ip);
+  }
+  // if src_ip specified, check if valid IP address
+  if (pdss.sec_spec.src_ip) {
+    if (!ccu_checkIpAddr(pdss.sec_spec.src_ip))
+      goto Lerror;
+  }
+
+  if (!ccu_checkTimePeriod(&(pdss.sec_spec)))
+    goto Lerror;
+
+  return true;
+
+Lerror:
+  return false;
+}
+
+/* ---------------------------------------------------------------
+ * ccu_checkUrl
+ * ---------------------------------------------------------------
+ * Checks that there is not more than one instance of  ":/" in
+ * the url.
+ */
+bool
+ccu_checkUrl(char *url)
+{
+  // Chop the protocol part, if it exists
+  char *slashStr = strstr(url, "://");
+  if (!slashStr) {
+    return false;               // missing protocol
+  } else {
+    url = slashStr + 3;         // advance two positions to get rid of leading '://'
+  }
+
+  // check if there's a second occurrence
+  slashStr = strstr(url, ":/");
+  if (slashStr)
+    return false;
+
+  // make sure that after the first solo "/", there are no more ":"
+  // to specify ports
+  slashStr = strstr(url, "/");  // begin path prefix
+  if (slashStr) {
+    url = slashStr++;
+    if (strstr(url, ":"))
+      return false;             // the port must be specified before the prefix
+  }
+
+  return true;
+}
+
+/* ---------------------------------------------------------------
+ * ccu_checkTimePeriod
+ * ---------------------------------------------------------------
+ * Checks that the time struct used to specify the time period in the
+ * TSSspec has valid time values (eg. 0-23 hr, 0-59 min) and that
+ * time A <= time B
+ */
+bool
+ccu_checkTimePeriod(TSSspec * sspec)
+{
+  // check valid time values
+  if (sspec->time.hour_a < 0 || sspec->time.hour_a > 23 ||
+      sspec->time.hour_b < 0 || sspec->time.hour_b > 23 ||
+      sspec->time.min_a < 0 || sspec->time.min_a > 59 || sspec->time.min_b < 0 || sspec->time.min_b > 59)
+    return false;
+
+  // check time_a < time_b
+  if (sspec->time.hour_a > sspec->time.hour_b) {
+    return false;
+  } else if (sspec->time.hour_a == sspec->time.hour_b) {
+    if (sspec->time.min_a > sspec->time.min_b)
+      return false;
+  }
+
+  return true;
+}
+
+/* ----------------------------------------------------------------------------
+ * chopWhiteSpaces_alloc
+ * ---------------------------------------------------------------------------
+ * eliminates any leading and trailing white spaces from str; returns
+ * the new allocated string
+ */
+char *
+chopWhiteSpaces_alloc(char *str)
+{
+  int len;
+
+  if (!str)
+    return NULL;
+
+  // skip any leading white spaces
+  while (*str != '\0') {
+    if ((*str) == ' ') {
+      ++str;
+      continue;
+    }
+    break;
+  }
+
+  // eliminate trailing white spaces
+  len = strcspn(str, " ");
+
+  return ats_strndup(str, len + 1);
+}
+
+/***************************************************************
+ * General Helper Functions
+ ***************************************************************/
+/*--------------------------------------------------------------
+ * create_ele_obj_from_rule_node
+ *--------------------------------------------------------------
+ * Calls the appropriate subclasses' constructor using TokenList.
+ * Returns NULL if invalid Ele.
+ */
+CfgEleObj *
+create_ele_obj_from_rule_node(Rule * rule)
+{
+  TSRuleTypeT rule_type;
+  TokenList *token_list;
+  CfgEleObj *ele = NULL;
+
+  // sanity check
+  //ink_assert(rule != NULL);
+  if (!rule)
+    return NULL;
+
+  // first check if the rule node is a comment
+  if (rule->getComment()) {
+    ele = (CfgEleObj *) new CommentObj(rule->getComment());
+    return ele;
+  }
+
+  token_list = rule->tokenList;
+  // determine what rule type the TokenList refers to
+  rule_type = get_rule_type(token_list, rule->getFiletype());
+
+  // convert TokenList into an Ele
+  // need switch statement to determine which Ele constructor to call
+  switch (rule_type) {
+  case TS_CACHE_NEVER:        /* all cache rules use same constructor */
+  case TS_CACHE_IGNORE_NO_CACHE:
+  case TS_CACHE_CLUSTER_CACHE_LOCAL:
+  case TS_CACHE_IGNORE_CLIENT_NO_CACHE:
+  case TS_CACHE_IGNORE_SERVER_NO_CACHE:
+  case TS_CACHE_PIN_IN_CACHE:
+  case TS_CACHE_TTL_IN_CACHE:
+  case TS_CACHE_REVALIDATE:
+  case TS_CACHE_AUTH_CONTENT:
+    ele = (CfgEleObj *) new CacheObj(token_list);
+    break;
+  case TS_CONGESTION:
+    ele = (CfgEleObj *) new CongestionObj(token_list);
+    break;
+  case TS_HOSTING:            /* hosting.config */
+    ele = (CfgEleObj *) new HostingObj(token_list);
+    break;
+  case TS_ICP:                /* icp.config */
+    ele = (CfgEleObj *) new IcpObj(token_list);
+    break;
+  case TS_IP_ALLOW:           /* ip_allow.config */
+    ele = (CfgEleObj *) new IpAllowObj(token_list);
+    break;
+
+  case TS_LOG_FILTER:         /* logs_xml.config */
+  case TS_LOG_OBJECT:
+  case TS_LOG_FORMAT:
+    //ele = (CfgEleObj *) new LogFilterObj(token_list);
+    break;
+  case TS_PP_PARENT:          /* parent.config */
+  case TS_PP_GO_DIRECT:
+    ele = (CfgEleObj *) new ParentProxyObj(token_list);
+    break;
+  case TS_VOLUME:          /* volume.config */
+    ele = (CfgEleObj *) new VolumeObj(token_list);
+    break;
+  case TS_PLUGIN:
+    ele = (CfgEleObj *) new PluginObj(token_list);
+    break;
+  case TS_REMAP_MAP:          /* remap.config */
+  case TS_REMAP_REVERSE_MAP:
+  case TS_REMAP_REDIRECT:
+  case TS_REMAP_REDIRECT_TEMP:
+    ele = (CfgEleObj *) new RemapObj(token_list);
+    break;
+  case TS_SOCKS_BYPASS:       /* socks.config */
+  case TS_SOCKS_AUTH:
+  case TS_SOCKS_MULTIPLE:
+    ele = (CfgEleObj *) new SocksObj(token_list);
+    break;
+  case TS_SPLIT_DNS:          /* splitdns.config */
+    ele = (CfgEleObj *) new SplitDnsObj(token_list);
+    break;
+  case TS_STORAGE:
+    ele = (CfgEleObj *) new StorageObj(token_list);
+    break;
+  case TS_UPDATE_URL:         /* update.config */
+    ele = (CfgEleObj *) new UpdateObj(token_list);
+    break;
+  case TS_VADDRS:             /* vaddrs.config */
+    ele = (CfgEleObj *) new VirtIpAddrObj(token_list);
+    break;
+  default:
+    return NULL;                //invalid rule type
+  }
+  if (!ele || !ele->isValid()) {
+    return NULL;
+  }
+  return ele;
+}
+
+/*--------------------------------------------------------------
+ * create_ele_obj_from_ele
+ *--------------------------------------------------------------
+ * calls the appropriate subclasses' constructor using actual TSEle
+ * need to convert the ele into appropriate Ele object type
+ * Note: the ele is not copied, it is actually used, so caller
+ * shouldn't free it!
+ */
+CfgEleObj *
+create_ele_obj_from_ele(TSCfgEle * ele)
+{
+  CfgEleObj *ele_obj = NULL;
+
+  if (!ele)
+    return NULL;
+
+  switch (ele->type) {
+  case TS_CACHE_NEVER:        /* cache.config */
+  case TS_CACHE_IGNORE_NO_CACHE:      // fall-through
+  case TS_CACHE_CLUSTER_CACHE_LOCAL:
+  case TS_CACHE_IGNORE_CLIENT_NO_CACHE:       // fall-through
+  case TS_CACHE_IGNORE_SERVER_NO_CACHE:       // fall-through
+  case TS_CACHE_PIN_IN_CACHE: // fall-through
+  case TS_CACHE_REVALIDATE:   // fall-through
+  case TS_CACHE_TTL_IN_CACHE:
+  case TS_CACHE_AUTH_CONTENT:
+    ele_obj = (CfgEleObj *) new CacheObj((TSCacheEle *) ele);
+    break;
+
+  case TS_CONGESTION:
+    ele_obj = (CfgEleObj *) new CongestionObj((TSCongestionEle *) ele);
+    break;
+
+  case TS_HOSTING:            /* hosting.config */
+    ele_obj = (CfgEleObj *) new HostingObj((TSHostingEle *) ele);
+    break;
+
+  case TS_ICP:                /* icp.config */
+    ele_obj = (CfgEleObj *) new IcpObj((TSIcpEle *) ele);
+    break;
+
+  case TS_IP_ALLOW:           /* ip_allow.config */
+    ele_obj = (CfgEleObj *) new IpAllowObj((TSIpAllowEle *) ele);
+    break;
+
+  case TS_LOG_FILTER:         /* logs_xml.config */
+  case TS_LOG_OBJECT:         // fall-through
+  case TS_LOG_FORMAT:         // fall-through
+    //ele_obj = (CfgEleObj*) new LogFilterObj((TSLogFilterEle*)ele);
+    break;
+
+  case TS_PP_PARENT:          /* parent.config */
+  case TS_PP_GO_DIRECT:       // fall-through
+    ele_obj = (CfgEleObj *) new ParentProxyObj((TSParentProxyEle *) ele);
+    break;
+
+  case TS_VOLUME:          /* volume.config */
+    ele_obj = (CfgEleObj *) new VolumeObj((TSVolumeEle *) ele);
+    break;
+
+  case TS_PLUGIN:
+    ele_obj = (CfgEleObj *) new PluginObj((TSPluginEle *) ele);
+    break;
+
+  case TS_REMAP_MAP:          /* remap.config */
+  case TS_REMAP_REVERSE_MAP:  // fall-through
+  case TS_REMAP_REDIRECT:     // fall-through
+  case TS_REMAP_REDIRECT_TEMP:        // fall-through
+    ele_obj = (CfgEleObj *) new RemapObj((TSRemapEle *) ele);
+    break;
+
+  case TS_SOCKS_BYPASS:       /* socks.config */
+  case TS_SOCKS_AUTH:
+  case TS_SOCKS_MULTIPLE:
+    ele_obj = (CfgEleObj *) new SocksObj((TSSocksEle *) ele);
+    break;
+
+  case TS_SPLIT_DNS:          /* splitdns.config */
+    ele_obj = (CfgEleObj *) new SplitDnsObj((TSSplitDnsEle *) ele);
+    break;
+
+  case TS_STORAGE:            /* storage.config */
+    ele_obj = (CfgEleObj *) new StorageObj((TSStorageEle *) ele);
+    break;
+
+  case TS_UPDATE_URL:         /* update.config */
+    ele_obj = (CfgEleObj *) new UpdateObj((TSUpdateEle *) ele);
+    break;
+
+  case TS_VADDRS:             /* vaddrs.config */
+    ele_obj = (CfgEleObj *) new VirtIpAddrObj((TSVirtIpAddrEle *) ele);
+    break;
+  case TS_TYPE_UNDEFINED:
+  default:
+    return NULL;                // error
+  }
+
+  return ele_obj;
+}
+
+/*--------------------------------------------------------------
+ * get_rule_type
+ *--------------------------------------------------------------
+ * determine what rule type the TokenList refers to by examining
+ * the appropriate token-value pair in the TokenList
+ */
+TSRuleTypeT
+get_rule_type(TokenList * token_list, TSFileNameT file)
+{
+  Token *tok;
+
+  //ink_asser(ttoken_list);
+  if (!token_list)
+    return TS_TYPE_UNDEFINED;
+
+  /* Depending on the file and rule type, need to find out which
+     token specifies which type of rule it is */
+  switch (file) {
+  case TS_FNAME_CACHE_OBJ:    /* cache.config */
+    tok = token_list->first();
+    while (tok != NULL) {
+      if (strcmp(tok->name, "action") == 0) {
+        if (strcmp(tok->value, "never-cache") == 0) {
+          return TS_CACHE_NEVER;
+        } else if (strcmp(tok->value, "ignore-no-cache") == 0) {
+          return TS_CACHE_IGNORE_NO_CACHE;
+        } else if (strcmp(tok->value, "cluster-cache-local") == 0) {
+          return TS_CACHE_CLUSTER_CACHE_LOCAL;
+        } else if (strcmp(tok->value, "ignore-client-no-cache") == 0) {
+          return TS_CACHE_IGNORE_CLIENT_NO_CACHE;
+        } else if (strcmp(tok->value, "ignore-server-no-cache") == 0) {
+          return TS_CACHE_IGNORE_SERVER_NO_CACHE;
+        } else if (strcmp(tok->value, "cache-auth-content") == 0) {
+          return TS_CACHE_AUTH_CONTENT;
+        } else {
+          return TS_TYPE_UNDEFINED;
+        }
+      } else if (strcmp(tok->name, "pin-in-cache") == 0) {
+        return TS_CACHE_PIN_IN_CACHE;
+      } else if (strcmp(tok->name, "revalidate") == 0) {
+        return TS_CACHE_REVALIDATE;
+      } else if (strcmp(tok->name, "ttl-in-cache") == 0) {
+        return TS_CACHE_TTL_IN_CACHE;
+      } else {                  // try next token
+        tok = token_list->next(tok);
+      }
+    }
+    // if reached this point, there is no action specified
+    return TS_TYPE_UNDEFINED;
+
+  case TS_FNAME_CONGESTION:   /* congestion.config */
+    return TS_CONGESTION;
+
+  case TS_FNAME_HOSTING:      /* hosting.config */
+    return TS_HOSTING;
+
+  case TS_FNAME_ICP_PEER:     /* icp.config */
+    return TS_ICP;
+
+  case TS_FNAME_IP_ALLOW:     /* ip_allow.config */
+    return TS_IP_ALLOW;
+
+
+  case TS_FNAME_LOGS_XML:     /* logs_xml.config */
+    printf(" *** CfgContextUtils.cc: NOT DONE YET! **\n");
+    //  TS_LOG_FILTER,             /* logs_xml.config */
+    //  TS_LOG_OBJECT,
+    //  TS_LOG_FORMAT,
+    return TS_LOG_FILTER;
+
+  case TS_FNAME_PARENT_PROXY: /* parent.config */
+    // search fro go_direct action name and recongize the value-> ture or false
+    for (tok = token_list->first(); tok; tok = token_list->next(tok)) {
+      if ((strcmp(tok->name, "go_direct") == 0) && (strcmp(tok->value, "true") == 0)) {
+        return TS_PP_GO_DIRECT;
+      }
+    }
+    return TS_PP_PARENT;
+
+  case TS_FNAME_VOLUME:    /* volume.config */
+    return TS_VOLUME;
+
+  case TS_FNAME_PLUGIN:       /* plugin.config */
+    return TS_PLUGIN;
+
+  case TS_FNAME_REMAP:        /* remap.config */
+    tok = token_list->first();
+    if (strcmp(tok->name, "map") == 0) {
+      return TS_REMAP_MAP;
+    } else if (strcmp(tok->name, "reverse_map") == 0) {
+      return TS_REMAP_REVERSE_MAP;
+    } else if (strcmp(tok->name, "redirect") == 0) {
+      return TS_REMAP_REDIRECT;
+    } else if (strcmp(tok->name, "redirect_temporary") == 0) {
+      return TS_REMAP_REDIRECT_TEMP;
+    } else {
+      return TS_TYPE_UNDEFINED;
+    }
+  case TS_FNAME_SOCKS:        /* socks.config */
+    tok = token_list->first();
+    if (strcmp(tok->name, "no_socks") == 0) {
+      return TS_SOCKS_BYPASS;
+    } else if (strcmp(tok->name, "auth") == 0) {
+      return TS_SOCKS_AUTH;
+    } else if (strcmp(tok->name, "dest_ip") == 0) {
+      return TS_SOCKS_MULTIPLE;
+    } else {
+      return TS_TYPE_UNDEFINED;
+    }
+  case TS_FNAME_SPLIT_DNS:    /* splitdns.config */
+    return TS_SPLIT_DNS;
+
+  case TS_FNAME_STORAGE:      /* storage.config */
+    return TS_STORAGE;
+
+  case TS_FNAME_UPDATE_URL:   /* update.config */
+    return TS_UPDATE_URL;
+
+  case TS_FNAME_VADDRS:       /* vaddrs.config */
+    return TS_VADDRS;
+  case TS_FNAME_UNDEFINED:
+  default:
+    return TS_TYPE_UNDEFINED;
+  }
+
+  return TS_TYPE_UNDEFINED;    // Should not reach here
+}
+
+///////////////////////////////////////////////////////////////////
+// Since we are using the ele's as C structures wrapped in C++ classes
+// we need to write copy function that "copy" the C structures
+// 1) need copy functions for each helper information struct which
+//    are typically embedded in the Ele's (eg. any lists, TSSspec)
+// 2) need copy functions for each Ele; these functiosn will actually
+// be called by teh copy constructors and overloaded assignment
+// operators in each CfgEleObj subclass!!
+///////////////////////////////////////////////////////////////////
+void
+copy_cfg_ele(TSCfgEle * src_ele, TSCfgEle * dst_ele)
+{
+  //ink_assert (src_ele && dst_ele);
+  if (!src_ele || !dst_ele)
+    return;
+
+  dst_ele->type = src_ele->type;
+  dst_ele->error = src_ele->error;
+}
+
+
+void
+copy_sspec(TSSspec * src, TSSspec * dst)
+{
+  //ink_assert(src && dst);
+  if (!src || !dst)
+    return;
+
+  dst->active = src->active;
+  dst->time.hour_a = src->time.hour_a;
+  dst->time.min_a = src->time.min_a;
+  dst->time.hour_b = src->time.hour_b;
+  dst->time.min_b = src->time.min_b;
+  if (src->src_ip)
+    dst->src_ip = ats_strdup(src->src_ip);
+  if (src->prefix)
+    dst->prefix = ats_strdup(src->prefix);
+  if (src->suffix)
+    dst->suffix = ats_strdup(src->suffix);
+  dst->port = copy_port_ele(src->port);
+  dst->method = src->method;
+  dst->scheme = src->scheme;
+}
+
+void
+copy_pdss_format(TSPdSsFormat * src_pdss, TSPdSsFormat * dst_pdss)
+{
+  //ink_assert (src_pdss && dst_pdss);
+  if (!src_pdss || !dst_pdss)
+    return;
+
+  dst_pdss->pd_type = src_pdss->pd_type;
+  if (src_pdss->pd_val)
+    dst_pdss->pd_val = ats_strdup(src_pdss->pd_val);
+  copy_sspec(&(src_pdss->sec_spec), &(dst_pdss->sec_spec));
+}
+
+void
+copy_hms_time(TSHmsTime * src, TSHmsTime * dst)
+{
+  if (!src || !dst)
+    return;
+
+  dst->d = src->d;
+  dst->h = src->h;
+  dst->m = src->m;
+  dst->s = src->s;
+}
+
+TSIpAddrEle *
+copy_ip_addr_ele(TSIpAddrEle * src_ele)
+{
+  TSIpAddrEle *dst_ele;
+
+  if (!src_ele)
+    return NULL;
+
+  dst_ele = TSIpAddrEleCreate();
+  dst_ele->type = src_ele->type;
+  if (src_ele->ip_a)
+    dst_ele->ip_a = ats_strdup(src_ele->ip_a);
+  dst_ele->cidr_a = src_ele->cidr_a;
+  dst_ele->port_a = src_ele->port_a;
+  if (src_ele->ip_b)
+    dst_ele->ip_b = ats_strdup(src_ele->ip_b);
+  dst_ele->cidr_b = src_ele->cidr_b;
+  dst_ele->port_b = src_ele->port_b;
+
+  return dst_ele;
+}
+
+TSPortEle *
+copy_port_ele(TSPortEle * src_ele)
+{
+  TSPortEle *dst_ele;
+
+  if (!src_ele)
+    return NULL;
+
+  dst_ele = TSPortEleCreate();
+  dst_ele->port_a = src_ele->port_a;
+  dst_ele->port_b = src_ele->port_b;
+
+  return dst_ele;
+}
+
+TSDomain *
+copy_domain(TSDomain * src_dom)
+{
+  TSDomain *dst_dom;
+
+  if (!src_dom)
+    return NULL;
+
+  dst_dom = TSDomainCreate();
+  if (src_dom->domain_val)
+    dst_dom->domain_val = ats_strdup(src_dom->domain_val);
+  dst_dom->port = src_dom->port;
+
+  return dst_dom;
+}
+
+TSIpAddrList
+copy_ip_addr_list(TSIpAddrList list)
+{
+  TSIpAddrList nlist;
+  TSIpAddrEle *ele, *nele;
+  int count, i;
+
+  if (list == TS_INVALID_LIST)
+    return TS_INVALID_LIST;
+
+  nlist = TSIpAddrListCreate();
+  count = TSIpAddrListLen(list);
+  for (i = 0; i < count; i++) {
+    ele = TSIpAddrListDequeue(list);
+    nele = copy_ip_addr_ele(ele);
+    TSIpAddrListEnqueue(list, ele);
+    TSIpAddrListEnqueue(nlist, nele);
+  }
+
+  return nlist;
+}
+
+TSPortList
+copy_port_list(TSPortList list)
+{
+  TSPortList nlist;
+  TSPortEle *ele, *nele;
+  int count, i;
+
+  if (list == TS_INVALID_LIST)
+    return TS_INVALID_LIST;
+
+  nlist = TSPortListCreate();
+  count = TSPortListLen(list);
+  for (i = 0; i < count; i++) {
+    ele = TSPortListDequeue(list);
+    nele = copy_port_ele(ele);
+    TSPortListEnqueue(list, ele);
+    TSPortListEnqueue(nlist, nele);
+  }
+
+  return nlist;
+}
+
+TSDomainList
+copy_domain_list(TSDomainList list)
+{
+  TSDomainList nlist;
+  TSDomain *ele, *nele;
+  int count, i;
+
+  if (list == TS_INVALID_LIST)
+    return TS_INVALID_LIST;
+
+  nlist = TSDomainListCreate();
+  count = TSDomainListLen(list);
+  for (i = 0; i < count; i++) {
+    ele = TSDomainListDequeue(list);
+    nele = copy_domain(ele);
+    TSDomainListEnqueue(list, ele);
+    TSDomainListEnqueue(nlist, nele);
+  }
+
+  return nlist;
+}
+
+TSStringList
+copy_string_list(TSStringList list)
+{
+  TSStringList nlist;
+  char *ele, *nele;
+  int count, i;
+
+  if (list == TS_INVALID_LIST)
+    return TS_INVALID_LIST;
+
+  nlist = TSStringListCreate();
+  count = TSStringListLen(list);
+  for (i = 0; i < count; i++) {
+    ele = TSStringListDequeue(list);
+    nele = ats_strdup(ele);
+    TSStringListEnqueue(list, ele);
+    TSStringListEnqueue(nlist, nele);
+  }
+
+  return nlist;
+
+}
+
+TSIntList
+copy_int_list(TSIntList list)
+{
+  TSIntList nlist;
+  int *elem, *nelem;
+  int count, i;
+
+  if (list == TS_INVALID_LIST)
+    return TS_INVALID_LIST;
+
+  nlist = TSIntListCreate();
+  count = TSIntListLen(list);
+  for (i = 0; i < count; i++) {
+    elem = TSIntListDequeue(list);
+    nelem = (int *)ats_malloc(sizeof(int));
+    *nelem = *elem;
+    TSIntListEnqueue(list, elem);
+    TSIntListEnqueue(nlist, nelem);
+  }
+
+  return nlist;
+}
+
+TSCacheEle *
+copy_cache_ele(TSCacheEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSCacheEle *nele = TSCacheEleCreate(ele->cfg_ele.type);
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  copy_pdss_format(&(ele->cache_info), &(nele->cache_info));
+  copy_hms_time(&(ele->time_period), &(nele->time_period));
+
+  return nele;
+}
+
+TSCongestionEle *
+copy_congestion_ele(TSCongestionEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSCongestionEle *nele = TSCongestionEleCreate();
+  if (!nele)
+    return NULL;
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  //copy_pdss_format(&(ele->congestion_info), &(nele->congestion_info));
+  nele->pd_type = ele->pd_type;
+  nele->pd_val = ats_strdup(ele->pd_val);
+  if (ele->prefix)
+    nele->prefix = ats_strdup(ele->prefix);
+  nele->port = ele->port;
+  nele->scheme = ele->scheme;
+  nele->max_connection_failures = ele->max_connection_failures;
+  nele->fail_window = ele->fail_window;
+  nele->proxy_retry_interval = ele->proxy_retry_interval;
+  nele->client_wait_interval = ele->client_wait_interval;
+  nele->wait_interval_alpha = ele->wait_interval_alpha;
+  nele->live_os_conn_timeout = ele->live_os_conn_timeout;
+  nele->live_os_conn_retries = ele->live_os_conn_retries;
+  nele->dead_os_conn_timeout = ele->dead_os_conn_timeout;
+  nele->dead_os_conn_retries = ele->dead_os_conn_retries;
+  nele->max_connection = ele->max_connection;
+  if (ele->error_page_uri)
+    nele->error_page_uri = ats_strdup(ele->error_page_uri);
+
+  return nele;
+}
+
+
+TSHostingEle *
+copy_hosting_ele(TSHostingEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSHostingEle *nele = TSHostingEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  nele->pd_type = ele->pd_type;
+  if (ele->pd_val)
+    nele->pd_val = ats_strdup(ele->pd_val);
+  ele->volumes = copy_int_list(ele->volumes);
+
+  return nele;
+}
+
+TSIcpEle *
+copy_icp_ele(TSIcpEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSIcpEle *nele = TSIcpEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  if (ele->peer_hostname)
+    nele->peer_hostname = ats_strdup(ele->peer_hostname);
+  if (ele->peer_host_ip_addr)
+    nele->peer_host_ip_addr = ats_strdup(ele->peer_host_ip_addr);
+  nele->peer_type = ele->peer_type;
+  nele->peer_proxy_port = ele->peer_proxy_port;
+  nele->peer_icp_port = ele->peer_icp_port;
+  nele->is_multicast = ele->is_multicast;
+  if (ele->mc_ip_addr)
+    nele->mc_ip_addr = ats_strdup(ele->mc_ip_addr);
+  nele->mc_ttl = ele->mc_ttl;
+
+  return nele;
+}
+
+TSIpAllowEle *
+copy_ip_allow_ele(TSIpAllowEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSIpAllowEle *nele = TSIpAllowEleCreate();
+  if (!nele)
+    return NULL;
+  if (ele->src_ip_addr)
+    nele->src_ip_addr = copy_ip_addr_ele(ele->src_ip_addr);
+  nele->action = ele->action;
+  return nele;
+}
+
+TSLogFilterEle *
+copy_log_filter_ele(TSLogFilterEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSLogFilterEle *nele = TSLogFilterEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  nele->action = ele->action;
+  if (ele->filter_name)
+    ele->filter_name = ats_strdup(nele->filter_name);
+  if (ele->log_field)
+    nele->log_field = ats_strdup(ele->log_field);
+  nele->compare_op = ele->compare_op;
+  if (ele->compare_str)
+    nele->compare_str = ats_strdup(ele->compare_str);
+  nele->compare_int = ele->compare_int;
+
+  return nele;
+}
+
+TSLogFormatEle *
+copy_log_format_ele(TSLogFormatEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSLogFormatEle *nele = TSLogFormatEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  if (ele->name)
+    nele->name = ats_strdup(ele->name);
+  if (ele->format)
+    nele->format = ats_strdup(ele->format);
+  nele->aggregate_interval_secs = ele->aggregate_interval_secs;
+
+  return nele;
+}
+
+TSLogObjectEle *
+copy_log_object_ele(TSLogObjectEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSLogObjectEle *nele = TSLogObjectEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  if (ele->format_name)
+    nele->format_name = ats_strdup(ele->format_name);
+  if (ele->file_name)
+    nele->file_name = ats_strdup(ele->file_name);
+  nele->log_mode = ele->log_mode;
+  nele->collation_hosts = copy_domain_list(ele->collation_hosts);
+  nele->filters = copy_string_list(ele->filters);
+  nele->protocols = copy_string_list(ele->protocols);
+  nele->server_hosts = copy_string_list(ele->server_hosts);
+
+  return nele;
+}
+
+TSParentProxyEle *
+copy_parent_proxy_ele(TSParentProxyEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSParentProxyEle *nele = TSParentProxyEleCreate(TS_TYPE_UNDEFINED);
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  copy_pdss_format(&(ele->parent_info), &(nele->parent_info));
+  nele->rr = ele->rr;
+  nele->proxy_list = copy_domain_list(ele->proxy_list);
+  nele->direct = ele->direct;
+
+  return nele;
+}
+
+TSVolumeEle *
+copy_volume_ele(TSVolumeEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSVolumeEle *nele = TSVolumeEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  nele->volume_num = ele->volume_num;
+  nele->scheme = ele->scheme;
+  nele->volume_size = ele->volume_size;
+  nele->size_format = ele->size_format;
+
+  return nele;
+}
+
+TSPluginEle *
+copy_plugin_ele(TSPluginEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSPluginEle *nele = TSPluginEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  if (ele->name)
+    nele->name = ats_strdup(ele->name);
+  nele->args = copy_string_list(ele->args);
+
+  return nele;
+}
+
+TSRemapEle *
+copy_remap_ele(TSRemapEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSRemapEle *nele = TSRemapEleCreate(TS_TYPE_UNDEFINED);
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  nele->map = ele->map;
+  nele->from_scheme = ele->from_scheme;
+  if (ele->from_host)
+    nele->from_host = ats_strdup(ele->from_host);
+  nele->from_port = ele->from_port;
+  if (ele->from_path_prefix)
+    nele->from_path_prefix = ats_strdup(ele->from_path_prefix);
+  nele->to_scheme = ele->to_scheme;
+  if (ele->to_host)
+    nele->to_host = ats_strdup(ele->to_host);
+  nele->to_port = ele->to_port;
+  if (ele->to_path_prefix)
+    nele->to_path_prefix = ats_strdup(ele->to_path_prefix);
+
+  return nele;
+}
+
+TSSocksEle *
+copy_socks_ele(TSSocksEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSSocksEle *nele = TSSocksEleCreate(TS_TYPE_UNDEFINED);
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  nele->ip_addrs = copy_ip_addr_list(ele->ip_addrs);
+  nele->dest_ip_addr = copy_ip_addr_ele(ele->dest_ip_addr);
+  nele->socks_servers = copy_domain_list(ele->socks_servers);
+  nele->rr = ele->rr;
+  if (ele->username)
+    nele->username = ats_strdup(ele->username);
+  if (ele->password)
+    nele->password = ats_strdup(ele->password);
+
+  return nele;
+}
+
+TSSplitDnsEle *
+copy_split_dns_ele(TSSplitDnsEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSSplitDnsEle *nele = TSSplitDnsEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  nele->pd_type = ele->pd_type;
+  if (ele->pd_val)
+    nele->pd_val = ats_strdup(ele->pd_val);
+  nele->dns_servers_addrs = copy_domain_list(ele->dns_servers_addrs);
+  if (ele->def_domain)
+    nele->def_domain = ats_strdup(ele->def_domain);
+  nele->search_list = copy_domain_list(ele->search_list);
+
+  return nele;
+}
+
+TSStorageEle *
+copy_storage_ele(TSStorageEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSStorageEle *nele = TSStorageEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  if (ele->pathname)
+    nele->pathname = ats_strdup(ele->pathname);
+  nele->size = ele->size;
+
+  return nele;
+}
+
+TSUpdateEle *
+copy_update_ele(TSUpdateEle * ele)
+{
+  if (!ele) {
+    return NULL;
+  }
+
+  TSUpdateEle *nele = TSUpdateEleCreate();
+  if (!nele)
+    return NULL;
+
+  copy_cfg_ele(&(ele->cfg_ele), &(nele->cfg_ele));
+  if (ele->url)
+    nele->url = ats_strdup(ele->url);
+  nele->headers = copy_string_list(ele->headers);
+  nele->offset_hour = ele->offset_hour;
+  nele->interval = ele->interval;
+  nele->recursion_depth = ele->recursion_depth;
+
+  return nele;
+}
+
+TSVirtIpAddrEle *
+copy_virt_ip_addr_ele(TSVirtIpAddrEle * ele)
+{
+  TSVirtIpAddrEle *new_ele;
+
+  if (!ele) {
+    return NULL;
+  }
+
+  new_ele = TSVirtIpAddrEleCreate();
+  if (!new_ele)
+    return NULL;
+
+  // copy cfg ele
+  copy_cfg_ele(&(ele->cfg_ele), &(new_ele->cfg_ele));
+  new_ele->ip_addr = ats_strdup(ele->ip_addr);
+  new_ele->intr = ats_strdup(ele->intr);
+  new_ele->sub_intr = ele->sub_intr;
+
+  return new_ele;
+}
+
+INKCommentEle *
+copy_comment_ele(INKCommentEle * ele)
+{
+  if (!ele)
+    return NULL;
+
+  INKCommentEle *nele = comment_ele_create(ele->comment);
+  return nele;
+}
+
+/***************************************************************************
+ * Functions needed by implementation but must be hidden from user
+ ***************************************************************************/
+INKCommentEle *
+comment_ele_create(char *comment)
+{
+  INKCommentEle *ele;
+
+  ele = (INKCommentEle *)ats_malloc(sizeof(INKCommentEle));
+
+  ele->cfg_ele.type = TS_TYPE_COMMENT;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  if (comment)
+    ele->comment = ats_strdup(comment);
+  else                          // comment is NULL
+    ele->comment = NULL;
+
+  return ele;
+}
+
+void
+comment_ele_destroy(INKCommentEle * ele)
+{
+  if (ele) {
+    ats_free(ele->comment);
+    ats_free(ele);
+  }
+
+  return;
+}
diff --git a/mgmt/api/CfgContextUtils.h b/mgmt/api/CfgContextUtils.h
new file mode 100644
index 00000000..390759fe
--- /dev/null
+++ b/mgmt/api/CfgContextUtils.h
@@ -0,0 +1,202 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: CfgContextUtils.h (based on FileOp.h)
+ * ------------------------------------------------------------------------
+ * Purpose:
+ * 1) Contains helper functions to convert "values" from TokenList to Ele
+ * format and from Ele Format to file Rule Format
+ * 2) contains helper functions to check for valid info
+ *
+ ***************************************************************************/
+
+#ifndef _CONTEXT_UTILS_H_
+#define _CONTEXT_UTILS_H_
+
+#include "CfgContextDefs.h"
+#include "mgmtapi.h"
+#include "GenericParser.h"
+#include "CfgContextImpl.h"
+
+/***************************************************************************
+ * Conversion Functions
+ ***************************************************************************/
+/* INKIpAddrEle <==> (single type)  ip_a/cidr_a
+ *                   (range type)   ip_a/cidr_a-ip_b/cidr_b */
+TSIpAddrEle *string_to_ip_addr_ele(const char *str);
+char *ip_addr_ele_to_string(TSIpAddrEle * ele);
+
+/* INKIpAddr <==> ip_addr_string */
+char *ip_addr_to_string(TSIpAddr ip);
+TSIpAddr string_to_ip_addr(const char *str);
+
+/* IpAddrList <==> ip_addr1, ip_addr2, ip_addr3, ... */
+char *ip_addr_list_to_string(IpAddrList * list, const char *delimiter);
+TSIpAddrList string_to_ip_addr_list(const char *str_list, const char *delimiter);
+
+/* PortList <==> port_1<delim>port_2<delim>port_3<delim>...<delim>port_n
+ * (Note: each port can be a port range */
+char *port_list_to_string(PortList * ports, const char *delimiter);
+TSPortList string_to_port_list(const char *str_list, const char *delimiter);
+
+/* TSPortEle <==> port_a / port_a#port_b */
+char *port_ele_to_string(TSPortEle * ele);
+TSPortEle *string_to_port_ele(const char *str);
+
+/* TSProxyList <==> proxy_1, proxy_2,... */
+//char* proxy_list_to_string(ProxyList *list);
+
+/* TSStringList(of char*'s)==> elem1<delimiter>elem2<delimiter>elem3 */
+char *string_list_to_string(TSStringList list, const char *delimiter);
+TSStringList string_to_string_list(const char *str, const char *delimiter);
+
+/* TSIntList(of char*'s)==> elem1<delimiter>elem2<delimiter>elem3 */
+char *int_list_to_string(TSIntList list, const char *delimiter);
+TSIntList string_to_int_list(const char *str, const char *delimiter);
+
+/* TSDomain */
+TSDomain *string_to_domain(const char *str);
+char *domain_to_string(TSDomain * domain);
+
+/* TSDomainList */
+TSDomainList string_to_domain_list(const char *str_list, const char *delimiter);
+char *domain_list_to_string(TSDomainList list, const char *delimiter);
+
+/* pd, pd_val, TSSspec ==> <pd_type>#<pd_value>#<sspecs> */
+char *pdest_sspec_to_string(TSPrimeDestT pd, char *prim_dest_val, TSSspec * sspec);
+/* <pd_type>#<pd_value>#<sspecs> ==> TSPdSsFormat */
+TSMgmtError string_to_pdss_format(const char *str, TSPdSsFormat * pdss);
+
+/* ?h?m?s <==> TSHmsTime */
+char *hms_time_to_string(TSHmsTime time);
+TSMgmtError string_to_hms_time(const char *str, TSHmsTime * time);
+
+/* string ==> time struct */
+TSMgmtError string_to_time_struct(const char *str, TSSspec * sspec);
+
+/* string ==> TSHdrT */
+TSHdrT string_to_header_type(const char *str);
+char *header_type_to_string(TSHdrT hdr);
+
+/* TSSchemeT <==> string */
+TSSchemeT string_to_scheme_type(const char *scheme);
+char *scheme_type_to_string(TSSchemeT scheme);
+
+/* TSMethodT <==> string */
+TSMethodT string_to_method_type(const char *method);
+char *method_type_to_string(TSMethodT method);
+
+/* TSConnectT <==> string */
+char *connect_type_to_string(TSConnectT conn);
+TSConnectT string_to_connect_type(const char *conn);
+
+/* TSMcTtlt <==> string */
+char *multicast_type_to_string(TSMcTtlT mc);
+
+/* TSRrT <==> string */
+TSRrT string_to_round_robin_type(const char *rr);
+char *round_robin_type_to_string(TSRrT rr);
+
+/* TSFileNameT <==> string */
+const char *filename_to_string(TSFileNameT file);
+
+TSCongestionSchemeT string_to_congest_scheme_type(const char *scheme);
+
+TSAccessT string_to_admin_acc_type(const char *access);
+char *admin_acc_type_to_string(TSAccessT access);
+
+/***************************************************************************
+ * Tokens-to-Struct Conversion Functions
+ ***************************************************************************/
+Token *tokens_to_pdss_format(TokenList * tokens, Token * first_tok, TSPdSsFormat * pdss);
+
+
+/***************************************************************************
+ * Validation Functions
+ ***************************************************************************/
+bool isNumber(const char *strNum);
+bool ccu_checkIpAddr(const char *addr, const char *min_addr = "0.0.0.0", const char *max_addr = "255.255.255.255");
+bool ccu_checkIpAddrEle(TSIpAddrEle * ele);
+bool ccu_checkPortNum(int port);
+bool ccu_checkPortEle(TSPortEle * ele);
+bool ccu_checkPdSspec(TSPdSsFormat pdss);
+bool ccu_checkUrl(char *url);
+bool ccu_checkTimePeriod(TSSspec * sspec);
+
+char *chopWhiteSpaces_alloc(char *str);
+
+/***************************************************************************
+ * General Helper Functions
+ ***************************************************************************/
+CfgEleObj *create_ele_obj_from_rule_node(Rule * rule);
+CfgEleObj *create_ele_obj_from_ele(TSCfgEle * ele);
+TSRuleTypeT get_rule_type(TokenList * token_list, TSFileNameT file);
+
+
+/***************************************************************************
+ * Copy Helper Functions
+ ***************************************************************************/
+// these are mainly used by the C++ CfgEleObj subclasses when they need
+// to make copies of their m_ele data class member
+
+void copy_cfg_ele(TSCfgEle * src_ele, TSCfgEle * dst_ele);
+void copy_sspec(TSSspec * src, TSSspec * dst);
+void copy_pdss_format(TSPdSsFormat * src_pdss, TSPdSsFormat * dst_pdss);
+void copy_hms_time(TSHmsTime * src, TSHmsTime * dst);
+TSIpAddrEle *copy_ip_addr_ele(TSIpAddrEle * src_ele);
+TSPortEle *copy_port_ele(TSPortEle * src_ele);
+TSDomain *copy_domain(TSDomain * src_dom);
+
+TSIpAddrList copy_ip_addr_list(TSIpAddrList list);
+TSPortList copy_port_list(TSPortList list);
+TSDomainList copy_domain_list(TSDomainList list);
+TSStringList copy_string_list(TSStringList list);
+TSIntList copy_int_list(TSIntList list);
+
+TSCacheEle *copy_cache_ele(TSCacheEle * ele);
+TSCongestionEle *copy_congestion_ele(TSCongestionEle * ele);
+TSHostingEle *copy_hosting_ele(TSHostingEle * ele);
+TSIcpEle *copy_icp_ele(TSIcpEle * ele);
+TSIpAllowEle *copy_ip_allow_ele(TSIpAllowEle * ele);
+TSLogFilterEle *copy_log_filter_ele(TSLogFilterEle * ele);
+TSLogFormatEle *copy_log_format_ele(TSLogFormatEle * ele);
+TSLogObjectEle *copy_log_object_ele(TSLogObjectEle * ele);
+TSParentProxyEle *copy_parent_proxy_ele(TSParentProxyEle * ele);
+TSVolumeEle *copy_volume_ele(TSVolumeEle * ele);
+TSPluginEle *copy_plugin_ele(TSPluginEle * ele);
+TSRemapEle *copy_remap_ele(TSRemapEle * ele);
+TSSocksEle *copy_socks_ele(TSSocksEle * ele);
+TSSplitDnsEle *copy_split_dns_ele(TSSplitDnsEle * ele);
+TSStorageEle *copy_storage_ele(TSStorageEle * ele);
+TSUpdateEle *copy_update_ele(TSUpdateEle * ele);
+TSVirtIpAddrEle *copy_virt_ip_addr_ele(TSVirtIpAddrEle * ele);
+INKCommentEle *copy_comment_ele(INKCommentEle * ele);
+
+/***************************************************************************
+ * Functions needed by implementation but must be hidden from user
+ ***************************************************************************/
+INKCommentEle *comment_ele_create(char *comment);
+void comment_ele_destroy(INKCommentEle * ele);
+
+#endif
diff --git a/mgmt/api/CoreAPI.cc b/mgmt/api/CoreAPI.cc
new file mode 100644
index 00000000..505ec6da
--- /dev/null
+++ b/mgmt/api/CoreAPI.cc
@@ -0,0 +1,908 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * CoreAPI.cc
+ *
+ * Implementation of many of TSMgmtAPI functions, but from local side.
+ *
+ *
+ ***************************************************************************/
+
+#include "ink_platform.h"
+#include "Main.h"
+#include "MgmtUtils.h"
+#include "LocalManager.h"
+#include "FileManager.h"
+#include "Rollback.h"
+#include "WebMgmtUtils.h"
+#include "Diags.h"
+#include "ink_hash_table.h"
+#include "ExpandingArray.h"
+//#include "I_AccCrypto.h"
+
+#include "CoreAPI.h"
+#include "CoreAPIShared.h"
+#include "CfgContextUtils.h"
+#include "EventCallback.h"
+#include "I_Layout.h"
+
+extern int diags_init;          // from Main.cc
+
+// global variable
+CallbackTable *local_event_callbacks;
+
+/*-------------------------------------------------------------------------
+ * Init
+ *-------------------------------------------------------------------------
+ * performs any necesary initializations for the local API client,
+ * eg. set up global structures; called by the TSMgmtAPI::TSInit()
+ */
+TSMgmtError
+Init(const char * /* socket_path ATS_UNUSED */, TSInitOptionT options)
+{
+  // socket_path should be null; only applies to remote clients
+  if (0 == (options & TS_MGMT_OPT_NO_EVENTS)) {
+    local_event_callbacks = create_callback_table("local_callbacks");
+    if (!local_event_callbacks)
+      return TS_ERR_SYS_CALL;
+  } else {
+    local_event_callbacks = NULL;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * Terminate
+ *-------------------------------------------------------------------------
+ * performs any necesary cleanup of global structures, etc,
+ * for the local API client,
+ */
+TSMgmtError
+Terminate()
+{
+  delete_callback_table(local_event_callbacks);
+
+  return TS_ERR_OKAY;
+}
+
+
+/*-------------------------------------------------------------------------
+ * Diags
+ *-------------------------------------------------------------------------
+ * Uses the Traffic Manager diags object to display the diags output.
+ */
+void
+Diags(TSDiagsT mode, const char *fmt, va_list ap)
+{
+  // Mapping TSDiagsT to Diags.h:DiagsLevel
+  // Simple casting would work, but not inflexible
+  DiagsLevel level = DL_Undefined;
+  switch (mode) {
+  case TS_DIAG_DIAG:
+    level = DL_Diag;
+    break;
+  case TS_DIAG_DEBUG:
+    level = DL_Debug;
+    break;
+  case TS_DIAG_STATUS:
+    level = DL_Status;
+    break;
+  case TS_DIAG_NOTE:
+    level = DL_Note;
+    break;
+  case TS_DIAG_WARNING:
+    level = DL_Warning;
+    break;
+  case TS_DIAG_ERROR:
+    level = DL_Error;
+    break;
+  case TS_DIAG_FATAL:
+    level = DL_Fatal;
+    break;
+  case TS_DIAG_ALERT:
+    level = DL_Alert;
+    break;
+  case TS_DIAG_EMERGENCY:
+    level = DL_Emergency;
+    break;
+  default:
+    level = DL_Diag;
+  }
+
+  if (diags_init) {             // check that diags is initialized
+    diags->print_va("TSMgmtAPI", level, NULL, fmt, ap);
+    va_end(ap);
+  }
+}
+
+
+/***************************************************************************
+ * Control Operations
+ ***************************************************************************/
+/*-------------------------------------------------------------------------
+ * ProxyStateGet
+ *-------------------------------------------------------------------------
+ * return TS_PROXY_OFF if  Traffic Server is off.
+ * return TS_PROXY_ON if Traffic Server is on.
+ */
+TSProxyStateT
+ProxyStateGet()
+{
+  if (!lmgmt->processRunning())
+    return TS_PROXY_OFF;
+  else
+    return TS_PROXY_ON;
+}
+
+/*-------------------------------------------------------------------------
+ * ProxyStateSet
+ *-------------------------------------------------------------------------
+ * If state == TS_PROXY_ON, will turn on TS (unless it's already running).
+ * If steat == TS_PROXY_OFF, will turn off TS (unless it's already off).
+ * tsArgs  - (optional) a string with space delimited options that user
+ *            wants to start traffic Server with
+ */
+TSMgmtError
+ProxyStateSet(TSProxyStateT state, TSCacheClearT clear)
+{
+  int i = 0;
+  char tsArgs[MAX_BUF_SIZE];
+  char *proxy_options;
+  bool found;
+
+  memset(tsArgs, 0, MAX_BUF_SIZE);
+
+  switch (state) {
+  case TS_PROXY_OFF:
+    if (!ProxyShutdown())       // from WebMgmtUtils
+      goto Lerror;              // unsuccessful shutdown
+    break;
+  case TS_PROXY_ON:
+    if (lmgmt->processRunning())        // already on
+      break;
+
+    // taken from mgmt/Main.cc when check the -tsArgs option
+    // Update cmd line overrides/environmental overrides/etc
+    switch (clear) {
+    case TS_CACHE_CLEAR_ON:   // traffic_server -K
+      snprintf(tsArgs, sizeof(tsArgs), "-K -M");
+      break;
+    case TS_CACHE_CLEAR_HOSTDB:       // traffic_server -k
+      snprintf(tsArgs, sizeof(tsArgs), "-k -M");
+      break;
+    case TS_CACHE_CLEAR_OFF:
+      // use default tsargs in records.config
+      int rec_err = RecGetRecordString_Xmalloc("proxy.config.proxy_binary_opts", &proxy_options);
+      found = (rec_err == REC_ERR_OKAY);
+      if (!found)
+        goto Lerror;
+
+      snprintf(tsArgs, MAX_BUF_SIZE, "%s", proxy_options);
+      ats_free(proxy_options);
+      break;
+    }
+
+    if (strlen(tsArgs) > 0) {   /* Passed command line args for proxy */
+      ats_free(lmgmt->proxy_options);
+      lmgmt->proxy_options = ats_strdup(tsArgs);
+      mgmt_log("[ProxyStateSet] Traffic Server Args: '%s'\n", lmgmt->proxy_options);
+    }
+
+    lmgmt->run_proxy = true;
+    lmgmt->listenForProxy();
+    do {
+      mgmt_sleep_sec(1);
+    } while (i++ < 20 && (lmgmt->proxy_running == 0));
+    if (!lmgmt->processRunning())
+      goto Lerror;
+    break;
+  default:
+    goto Lerror;
+  }
+
+  return TS_ERR_OKAY;
+
+Lerror:
+  return TS_ERR_FAIL;          /* failed to set proxy  state */
+}
+
+/*-------------------------------------------------------------------------
+ * Reconfigure
+ *-------------------------------------------------------------------------
+ * Rereads configuration files
+ */
+TSMgmtError
+Reconfigure()
+{
+  configFiles->rereadConfig();  // TM rereads
+  lmgmt->signalEvent(MGMT_EVENT_PLUGIN_CONFIG_UPDATE, "*");     // TS rereads
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * Restart
+ *-------------------------------------------------------------------------
+ * Restarts Traffic Manager. Traffic Cop must be running in order to
+ * restart Traffic Manager!!
+ */
+TSMgmtError
+Restart(bool cluster)
+{
+  if (cluster) {                // Enqueue an event to restart the proxies across the cluster
+    // this will kill TM completely;traffic_cop will restart TM/TS
+    lmgmt->ccom->sendClusterMessage(CLUSTER_MSG_SHUTDOWN_MANAGER);
+  } else {                      // just bounce local proxy
+    lmgmt->mgmtShutdown();
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * Bouncer
+ *-------------------------------------------------------------------------
+ * Bounces traffic_server process(es).
+ */
+TSMgmtError
+Bounce(bool cluster)
+{
+  if (cluster) {
+    lmgmt->ccom->sendClusterMessage(CLUSTER_MSG_BOUNCE_PROCESS);
+  } else {
+    lmgmt->processBounce();
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * StorageDeviceCmdOffline
+ *-------------------------------------------------------------------------
+ * Disable a storage device.
+ * [amc] I don't think this is called but is required because of the way the
+ * CoreAPI is linked (it must match the remote CoreAPI signature so compiling
+ * this source or CoreAPIRemote.cc yields the same set of symbols).
+ */
+TSMgmtError
+StorageDeviceCmdOffline(char const* dev)
+{
+  lmgmt->signalEvent(MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE, dev);
+  return TS_ERR_OKAY;
+}
+/**************************************************************************
+ * RECORD OPERATIONS
+ *************************************************************************/
+/*-------------------------------------------------------------------------
+ * MgmtRecordGet
+ *-------------------------------------------------------------------------
+ * rec_ele has allocated memory already but with all empty fields.
+ * The record info associated with rec_name will be returned in rec_ele.
+ */
+TSMgmtError
+MgmtRecordGet(const char *rec_name, TSRecordEle * rec_ele)
+{
+  RecDataT rec_type;
+  char rec_val[MAX_BUF_SIZE];
+  char *str_val;
+  MgmtIntCounter counter_val;
+  MgmtInt int_val;
+
+  Debug("RecOp", "[MgmtRecordGet] Start\n");
+
+  // initialize the record name
+  rec_ele->rec_name = ats_strdup(rec_name);
+  memset(rec_val, 0, MAX_BUF_SIZE);
+
+  // get variable type; returns INVALID if invalid rec_name
+  rec_type = varType(rec_name);
+  switch (rec_type) {
+  case RECD_COUNTER:
+    rec_ele->rec_type = TS_REC_COUNTER;
+    if (!varCounterFromName(rec_name, &(counter_val)))
+      return TS_ERR_FAIL;
+    rec_ele->valueT.counter_val = (TSCounter) counter_val;
+
+    Debug("RecOp", "[MgmtRecordGet] Get Counter Var %s = %" PRId64"\n", rec_ele->rec_name,
+          rec_ele->valueT.counter_val);
+    break;
+
+  case RECD_INT:
+    rec_ele->rec_type = TS_REC_INT;
+    if (!varIntFromName(rec_name, &(int_val)))
+      return TS_ERR_FAIL;
+    rec_ele->valueT.int_val = (TSInt) int_val;
+
+    Debug("RecOp", "[MgmtRecordGet] Get Int Var %s = %" PRId64"\n", rec_ele->rec_name, rec_ele->valueT.int_val);
+    break;
+
+  case RECD_FLOAT:
+    rec_ele->rec_type = TS_REC_FLOAT;
+    if (!varFloatFromName(rec_name, &(rec_ele->valueT.float_val)))
+      return TS_ERR_FAIL;
+
+    Debug("RecOp", "[MgmtRecordGet] Get Float Var %s = %f\n", rec_ele->rec_name, rec_ele->valueT.float_val);
+    break;
+
+  case RECD_STRING:
+    if (!varStrFromName(rec_name, rec_val, MAX_BUF_SIZE))
+      return TS_ERR_FAIL;
+
+
+    if (rec_val[0] != '\0') {   // non-NULL string value
+      // allocate memory & duplicate string value
+      str_val = ats_strdup(rec_val);
+    } else {
+      str_val = ats_strdup("NULL");
+    }
+
+    rec_ele->rec_type = TS_REC_STRING;
+    rec_ele->valueT.string_val = str_val;
+    Debug("RecOp", "[MgmtRecordGet] Get String Var %s = %s\n", rec_ele->rec_name, rec_ele->valueT.string_val);
+    break;
+
+  default:                     // UNKOWN TYPE
+    Debug("RecOp", "[MgmtRecordGet] Get Failed : %d is Unknown Var type %s\n", rec_type, rec_name);
+    return TS_ERR_FAIL;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+// This is not implemented in the Core side of the API because we don't want
+// to buffer up all the matching records in memory. We stream the records
+// directory onto the management socket in handle_record_match(). This stub
+// is just here for link time dependencies.
+TSMgmtError
+MgmtRecordGetMatching(const char * /* regex */, TSList /* rec_vals */)
+{
+  return TS_ERR_FAIL;
+}
+
+/*-------------------------------------------------------------------------
+ * reads the RecordsConfig info to determine which type of action is needed
+ * when the record rec_name is changed; if the rec_name is invalid,
+ * then returns TS_ACTION_UNDEFINED
+ */
+TSActionNeedT
+determine_action_need(const char *rec_name)
+{
+  RecUpdateT update_t;
+
+  if (REC_ERR_OKAY != RecGetRecordUpdateType(rec_name, &update_t))
+    return TS_ACTION_UNDEFINED;
+
+  switch (update_t) {
+  case RECU_NULL:                // default:don't know behaviour
+    return TS_ACTION_UNDEFINED;
+
+  case RECU_DYNAMIC:             // update dynamically by rereading config files
+    return TS_ACTION_RECONFIGURE;
+
+  case RECU_RESTART_TS:          // requires TS restart
+    return TS_ACTION_RESTART;
+
+  case RECU_RESTART_TM:          // requires TM/TS restart
+    return TS_ACTION_RESTART;
+
+  default:                     // shouldn't get here actually
+    return TS_ACTION_UNDEFINED;
+  }
+
+  return TS_ACTION_UNDEFINED;  // ERROR
+}
+
+
+/*-------------------------------------------------------------------------
+ * MgmtRecordSet
+ *-------------------------------------------------------------------------
+ * Uses bool WebMgmtUtils::varSetFromStr(const char*, const char* )
+ * Sets the named local manager variable from the value string
+ * passed in.  Does the appropriate type conversion on
+ * value string to get it to the type of the local manager
+ * variable
+ *
+ *  returns true if the variable was successfully set
+ *   and false otherwise
+ */
+TSMgmtError
+MgmtRecordSet(const char *rec_name, const char *val, TSActionNeedT * action_need)
+{
+  Debug("RecOp", "[MgmtRecordSet] Start\n");
+
+  if (!rec_name || !val || !action_need)
+    return TS_ERR_PARAMS;
+
+  *action_need = determine_action_need(rec_name);
+
+  if (recordValidityCheck(rec_name, val)) {
+    if (varSetFromStr(rec_name, val))
+      return TS_ERR_OKAY;
+  }
+
+  return TS_ERR_FAIL;
+}
+
+
+/*-------------------------------------------------------------------------
+ * MgmtRecordSetInt
+ *-------------------------------------------------------------------------
+ * Use the record's name to look up the record value and its type.
+ * Returns TS_ERR_FAIL if the type is not a valid integer.
+ * Converts the integer value to a string and call MgmtRecordSet
+ */
+TSMgmtError
+MgmtRecordSetInt(const char *rec_name, MgmtInt int_val, TSActionNeedT * action_need)
+{
+  if (!rec_name || !action_need)
+    return TS_ERR_PARAMS;
+
+  // convert int value to string for validity check
+  char str_val[MAX_RECORD_SIZE];
+
+  memset(str_val, 0, MAX_RECORD_SIZE);
+  snprintf(str_val, sizeof(str_val), "%" PRId64 "", int_val);
+
+  return MgmtRecordSet(rec_name, str_val, action_need);
+}
+
+
+/*-------------------------------------------------------------------------
+ * MgmtRecordSetCounter
+ *-------------------------------------------------------------------------
+ * converts the counter_val to a string and uses MgmtRecordSet
+ */
+TSMgmtError
+MgmtRecordSetCounter(const char *rec_name, MgmtIntCounter counter_val, TSActionNeedT * action_need)
+{
+  if (!rec_name || !action_need)
+    return TS_ERR_PARAMS;
+
+  // convert int value to string for validity check
+  char str_val[MAX_RECORD_SIZE];
+
+  memset(str_val, 0, MAX_RECORD_SIZE);
+  snprintf(str_val, sizeof(str_val), "%" PRId64 "", counter_val);
+
+  return MgmtRecordSet(rec_name, str_val, action_need);
+}
+
+
+/*-------------------------------------------------------------------------
+ * MgmtRecordSetFloat
+ *-------------------------------------------------------------------------
+ * converts the float value to string (to do record validity check)
+ * and calls MgmtRecordSet
+ */
+TSMgmtError
+MgmtRecordSetFloat(const char *rec_name, MgmtFloat float_val, TSActionNeedT * action_need)
+{
+  if (!rec_name || !action_need)
+    return TS_ERR_PARAMS;
+
+  // convert float value to string for validity check
+  char str_val[MAX_RECORD_SIZE];
+
+  memset(str_val, 0, MAX_RECORD_SIZE);
+  snprintf(str_val, sizeof(str_val), "%f", float_val);
+
+  return MgmtRecordSet(rec_name, str_val, action_need);
+}
+
+
+/*-------------------------------------------------------------------------
+ * MgmtRecordSetString
+ *-------------------------------------------------------------------------
+ * The string value is copied so it's okay to free the string later
+ */
+TSMgmtError
+MgmtRecordSetString(const char *rec_name, const char *string_val, TSActionNeedT * action_need)
+{
+  return MgmtRecordSet(rec_name, string_val, action_need);
+}
+
+
+/**************************************************************************
+ * FILE OPERATIONS
+ *************************************************************************/
+
+/*-------------------------------------------------------------------------
+ * ReadFile (MgmtAPILocal::get_lines_from_file)
+ *-------------------------------------------------------------------------
+ * Purpose: returns copy of the most recent version of the file
+ * Input:   file - the config file to read
+ *          text - a buffer is allocated on the text char* pointer
+ *          size - the size of the buffer is returned
+ *          ver  - the version number of file being read
+ * Note: CALLEE must DEALLOCATE text memory returned
+ */
+TSMgmtError
+ReadFile(TSFileNameT file, char **text, int *size, int *version)
+{
+  const char *fname;
+  Rollback *file_rb;
+  int ret, old_file_len;
+  textBuffer *old_file_content;
+  char *old_file_lines;
+  version_t ver;
+
+  Debug("FileOp", "[get_lines_from_file] START\n");
+
+
+  fname = filename_to_string(file);
+  if (!fname)
+    return TS_ERR_READ_FILE;
+
+  ret = configFiles->getRollbackObj(fname, &file_rb);
+  if (ret != true) {
+    Debug("FileOp", "[get_lines_from_file] Can't get Rollback for file: %s\n", fname);
+    return TS_ERR_READ_FILE;
+  }
+  ver = file_rb->getCurrentVersion();
+  file_rb->getVersion(ver, &old_file_content);
+  *version = ver;
+
+  // don't need to allocate memory b/c "getVersion" allocates memory
+  old_file_lines = old_file_content->bufPtr();
+  old_file_len = strlen(old_file_lines);
+
+  *text = ats_strdup(old_file_lines);      //make copy before deleting textBuffer
+  *size = old_file_len;
+
+  delete old_file_content;      // delete textBuffer
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * WriteFile
+ *-------------------------------------------------------------------------
+ * Purpose: replaces the current file with the file passed in;
+ *  does forceUpdate for Rollback and FileManager so correct file
+ *  versioning is maintained
+ * Input: file - the config file to write
+ *        text - text buffer to write
+ *        size - the size of the buffer to write
+ *        version - the current version level; new file will have the
+ *                  version number above this one
+ */
+TSMgmtError
+WriteFile(TSFileNameT file, char *text, int size, int version)
+{
+  const char *fname;
+  Rollback *file_rb;
+  textBuffer *file_content;
+  int ret;
+  version_t ver;
+
+
+  fname = filename_to_string(file);
+  if (!fname)
+    return TS_ERR_WRITE_FILE;
+
+  // get rollback object for config file
+  mgmt_log(stderr, "[CfgFileIO::WriteFile] %s\n", fname);
+  if (!(configFiles->getRollbackObj(fname, &file_rb))) {
+    mgmt_log(stderr, "[CfgFileIO::WriteFile] ERROR getting rollback object\n");
+    //goto generate_error_msg;
+  }
+
+  // if version < 0 then, just use next version in sequence;
+  // otherwise check if trying to commit an old version
+  if (version >= 0) {
+    // check that the current version is equal to or less than the version
+    // that wants to be written
+    ver = file_rb->getCurrentVersion();
+    if (ver != version)         // trying to commit an old version
+      return TS_ERR_WRITE_FILE;
+  }
+  // use rollback object to update file with new content
+  file_content = new textBuffer(size + 1);
+  ret = file_content->copyFrom(text, size);
+  if (ret < 0) {
+    delete file_content;
+    return TS_ERR_WRITE_FILE;
+  }
+
+  if ((file_rb->forceUpdate(file_content, -1)) != OK_ROLLBACK) {
+    delete file_content;
+    return TS_ERR_WRITE_FILE;
+  }
+
+  delete file_content;
+  return TS_ERR_OKAY;
+}
+
+/**************************************************************************
+ * EVENTS
+ *************************************************************************/
+/*-------------------------------------------------------------------------
+ * EventSignal
+ *-------------------------------------------------------------------------
+ * LAN: THIS FUNCTION IS HACKED AND INCOMPLETE!!!!!
+ * with the current alarm processor system, the argument list is NOT
+ * used; a set description is associated with each alarm already;
+ * be careful because this alarm description is used to keep track
+ * of alarms in the current alarm processor
+ */
+TSMgmtError
+EventSignal(char * /* event_name ATS_UNUSED */, va_list /* ap ATS_UNUSED */)
+{
+  //char *text;
+  //int id;
+
+  //id = get_event_id(event_name);
+  //text = get_event_text(event_name);
+  //lmgmt->alarm_keeper->signalAlarm(id, text, NULL);
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * EventResolve
+ *-------------------------------------------------------------------------
+ * Resolves the event of the given event_name. If the event is already
+ * unresolved, just return TS_ERR_OKAY.
+
+ */
+TSMgmtError
+EventResolve(char *event_name)
+{
+  alarm_t a;
+
+  if (!event_name)
+    return TS_ERR_PARAMS;
+
+  a = get_event_id(event_name);
+  lmgmt->alarm_keeper->resolveAlarm(a);
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * ActiveEventGetMlt
+ *-------------------------------------------------------------------------
+ * returns failure, and an incomplete active_alarms list if any of
+ * functions fail for a single event
+ * note: returns list of local alarms at that instant of fn call (snapshot)
+ */
+TSMgmtError
+ActiveEventGetMlt(LLQ * active_events)
+{
+  InkHashTable *event_ht;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+  int event_id;
+  char *event_name;
+
+  if (!active_events)
+    return TS_ERR_PARAMS;
+
+  // Alarms stores a hashtable of all active alarms where:
+  // key = alarm_t,
+  // value = alarm_description defined in Alarms.cc alarmText[] array
+  event_ht = lmgmt->alarm_keeper->getLocalAlarms();
+
+  // iterate through hash-table and insert event_name's into active_events list
+  for (entry = ink_hash_table_iterator_first(event_ht, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(event_ht, &iterator_state)) {
+
+    char *key = (char *) ink_hash_table_entry_key(event_ht, entry);
+
+    // convert key to int; insert into llQ
+    event_id = ink_atoi(key);
+    event_name = get_event_name(event_id);
+    if (event_name) {
+      if (!enqueue(active_events, event_name))  // returns true if successful
+        return TS_ERR_FAIL;
+    }
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * EventIsActive
+ *-------------------------------------------------------------------------
+ * Sets *is_current to true if the event named event_name is currently
+ * unresolved; otherwise sets *is_current to false.
+ */
+TSMgmtError
+EventIsActive(char *event_name, bool * is_current)
+{
+  alarm_t a;
+
+  if (!event_name || !is_current)
+    return TS_ERR_PARAMS;
+
+  a = get_event_id(event_name);
+  // consider an invalid event_name an error
+  if (a < 0)
+    return TS_ERR_PARAMS;
+  if (lmgmt->alarm_keeper->isCurrentAlarm(a))
+    *is_current = true;         // currently an event
+  else
+    *is_current = false;
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * EventSignalCbRegister
+ *-------------------------------------------------------------------------
+ * This differs from the remote side callback registered. Technically, I think
+ * we need to redesign the alarm processor before we can handle the callback
+ * functionality we want to accomplish. Because currently the alarm processor
+ * only allow registering callbacks for general alarms.
+ * Mimic remote side and have a separate structure (eg. hashtable) of
+ * event callback functions for each type of event. The functions are also
+ * stored in the the hashtable, not in the TM alarm processor model
+ */
+TSMgmtError
+EventSignalCbRegister(char *event_name, TSEventSignalFunc func, void *data)
+{
+  return cb_table_register(local_event_callbacks, event_name, func, data, NULL);
+
+}
+
+/*-------------------------------------------------------------------------
+ * EventSignalCbUnregister
+ *-------------------------------------------------------------------------
+ * Removes the callback function from the local side CallbackTable
+ */
+TSMgmtError
+EventSignalCbUnregister(char *event_name, TSEventSignalFunc func)
+{
+  return cb_table_unregister(local_event_callbacks, event_name, func);
+}
+
+/***************************************************************************
+ * Snapshots
+ ***************************************************************************/
+TSMgmtError
+SnapshotTake(char *snapshot_name)
+{
+  char *snapDirFromRecordsConf;
+  bool found;
+  char snapDir[PATH_NAME_MAX + 1];
+
+  if (!snapshot_name)
+    return TS_ERR_PARAMS;
+
+  int rec_err = RecGetRecordString_Xmalloc("proxy.config.snapshot_dir", &snapDirFromRecordsConf);
+  found = (rec_err == REC_ERR_OKAY);
+  ink_release_assert(found);
+  // XXX: Why was that offset to config dir?
+  //      Any path should be prefix relative thought
+  //
+  Layout::relative_to(snapDir, sizeof(snapDir), Layout::get()->sysconfdir, snapDirFromRecordsConf);
+  ats_free(snapDirFromRecordsConf);
+
+  SnapResult result = configFiles->takeSnap(snapshot_name, snapDir);
+  if (result != SNAP_OK)
+    return TS_ERR_FAIL;
+  else
+    return TS_ERR_OKAY;
+}
+
+TSMgmtError
+SnapshotRestore(char *snapshot_name)
+{
+  char *snapDirFromRecordsConf;
+  bool found;
+  char snapDir[PATH_NAME_MAX + 1];
+
+  if (!snapshot_name)
+    return TS_ERR_PARAMS;
+
+  int rec_err = RecGetRecordString_Xmalloc("proxy.config.snapshot_dir", &snapDirFromRecordsConf);
+  found = (rec_err == REC_ERR_OKAY);
+  ink_release_assert(found);
+  // XXX: Why was that offset to config dir?
+  //      Any path should be prefix relative thought
+  //
+  Layout::relative_to(snapDir, sizeof(snapDir), Layout::get()->sysconfdir, snapDirFromRecordsConf);
+  ats_free(snapDirFromRecordsConf);
+
+  SnapResult result = configFiles->restoreSnap(snapshot_name, snapDir);
+  ats_free(snapDirFromRecordsConf);
+  if (result != SNAP_OK)
+    return TS_ERR_FAIL;
+  else
+    return TS_ERR_OKAY;
+}
+
+TSMgmtError
+SnapshotRemove(char *snapshot_name)
+{
+  char *snapDirFromRecordsConf;
+  bool found;
+  char snapDir[PATH_NAME_MAX + 1];
+
+  if (!snapshot_name)
+    return TS_ERR_PARAMS;
+
+  int rec_err = RecGetRecordString_Xmalloc("proxy.config.snapshot_dir", &snapDirFromRecordsConf);
+  found = (rec_err == REC_ERR_OKAY);
+  ink_release_assert(found);
+  // XXX: Why was that offset to config dir?
+  //      Any path should be prefix relative thought
+  //
+  Layout::relative_to(snapDir, sizeof(snapDir), Layout::get()->sysconfdir, snapDirFromRecordsConf);
+  ats_free(snapDirFromRecordsConf);
+
+  SnapResult result = configFiles->removeSnap(snapshot_name, snapDir);
+  ats_free(snapDirFromRecordsConf);
+  if (result != SNAP_OK)
+    return TS_ERR_FAIL;
+  else
+    return TS_ERR_OKAY;
+}
+
+/* based on FileManager.cc::displaySnapOption() */
+TSMgmtError
+SnapshotGetMlt(LLQ * snapshots)
+{
+  ExpandingArray snap_list(25, true);
+  SnapResult snap_result;
+  int num_snaps;
+  char *snap_name;
+
+  snap_result = configFiles->WalkSnaps(&snap_list);
+  if (snap_result != SNAP_OK)
+    return TS_ERR_FAIL;
+
+  num_snaps = snap_list.getNumEntries();
+  for (int i = 0; i < num_snaps; i++) {
+    snap_name = (char *) (snap_list[i]);
+    if (snap_name)
+      enqueue(snapshots, ats_strdup(snap_name));
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * StatsReset
+ *-------------------------------------------------------------------------
+ * Iterates through the RecordsConfig table, and for all stats
+ * (type PROCESS, NODE, CLUSTER), sets them back to their default value
+ * If one stat fails to be set correctly, then continues onto next one,
+ * but will return TS_ERR_FAIL. Only returns TS_ERR_OKAY if all
+ * stats are set back to defaults successfully.
+ */
+TSMgmtError
+StatsReset(bool cluster, const char *name)
+{
+  if (cluster)
+    lmgmt->ccom->sendClusterMessage(CLUSTER_MSG_CLEAR_STATS, name);
+  else
+    lmgmt->clearStats(name);
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------
+ * rmserver.cfg
+ *-------------------------------------------------------------*/
diff --git a/mgmt/api/CoreAPI.h b/mgmt/api/CoreAPI.h
new file mode 100644
index 00000000..5b55e24b
--- /dev/null
+++ b/mgmt/api/CoreAPI.h
@@ -0,0 +1,105 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef _CORE_API_H
+#define _CORE_API_H
+
+#include <stdarg.h>             // for va_list
+
+#include "ink_llqueue.h"
+#include "MgmtDefs.h"           // MgmtInt, MgmtFloat, etc
+
+#include "mgmtapi.h"
+#include "CfgContextDefs.h"
+#include "Tokenizer.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+TSMgmtError Init(const char *socket_path = NULL, TSInitOptionT options = TS_MGMT_OPT_DEFAULTS);
+TSMgmtError Terminate();
+
+void Diags(TSDiagsT mode, const char *fmt, va_list ap);
+
+/***************************************************************************
+ * Control Operations
+ ***************************************************************************/
+TSProxyStateT ProxyStateGet();
+TSMgmtError ProxyStateSet(TSProxyStateT state, TSCacheClearT clear);
+
+TSMgmtError Reconfigure();         // TS reread config files
+TSMgmtError Restart(bool cluster); //restart TM
+TSMgmtError Bounce(bool cluster);  //restart traffic_server
+TSMgmtError StorageDeviceCmdOffline(char const* dev); // Storage device operation.
+
+/***************************************************************************
+ * Record Operations
+ ***************************************************************************/
+/* For remote implementation of this interface, these functions will have
+   to marshal/unmarshal and send request across the network */
+TSMgmtError MgmtRecordGet(const char *rec_name, TSRecordEle * rec_ele);
+
+TSMgmtError MgmtRecordSet(const char *rec_name, const char *val, TSActionNeedT * action_need);
+TSMgmtError MgmtRecordSetInt(const char *rec_name, MgmtInt int_val, TSActionNeedT * action_need);
+TSMgmtError MgmtRecordSetCounter(const char *rec_name, MgmtIntCounter counter_val, TSActionNeedT *action_need);
+TSMgmtError MgmtRecordSetFloat(const char *rec_name, MgmtFloat float_val, TSActionNeedT * action_need);
+TSMgmtError MgmtRecordSetString(const char *rec_name, const char*string_val, TSActionNeedT * action_need);
+TSMgmtError MgmtRecordGetMatching(const char * regex, TSList rec_vals);
+
+
+/***************************************************************************
+ * File Operations
+ ***************************************************************************/
+TSMgmtError ReadFile(TSFileNameT file, char **text, int *size, int *version);
+TSMgmtError WriteFile(TSFileNameT file, char *text, int size, int version);
+
+/***************************************************************************
+ * Events
+ ***************************************************************************/
+
+TSMgmtError EventSignal(char *event_name, va_list ap);
+TSMgmtError EventResolve(char *event_name);
+TSMgmtError ActiveEventGetMlt(LLQ * active_events);
+TSMgmtError EventIsActive(char *event_name, bool * is_current);
+TSMgmtError EventSignalCbRegister(char *event_name, TSEventSignalFunc func, void *data);
+TSMgmtError EventSignalCbUnregister(char *event_name, TSEventSignalFunc func);
+
+/***************************************************************************
+ * Snapshots
+ ***************************************************************************/
+TSMgmtError SnapshotTake(char *snapshot_name);
+TSMgmtError SnapshotRestore(char *snapshot_name);
+TSMgmtError SnapshotRemove(char *snapshot_name);
+TSMgmtError SnapshotGetMlt(LLQ * snapshots);
+
+TSMgmtError StatsReset(bool cluster, const char* name = NULL);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
diff --git a/mgmt/api/CoreAPIRemote.cc b/mgmt/api/CoreAPIRemote.cc
new file mode 100644
index 00000000..117a74f1
--- /dev/null
+++ b/mgmt/api/CoreAPIRemote.cc
@@ -0,0 +1,851 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: CoreAPIRemote.cc
+ * Purpose: Implementation of CoreAPI.h interface but from remote client
+ *          perspective, so must also add networking calls. Basically, any
+ *          TSMgmtAPI calls which are "special" for remote clients
+ *          need to be implemented here.
+ * Note: For remote implementation of this interface, most functions will:
+ *  1) marshal: create the message to send across network
+ *  2) connect and send request
+ *  3) unmarshal: parse the reply (checking for TSMgmtError)
+ *
+ * Created: lant
+ *
+ ***************************************************************************/
+
+#include "ink_config.h"
+#include "ink_defs.h"
+#include <strings.h>
+#include "ink_string.h"
+#include "I_Layout.h"
+#include "ParseRules.h"
+#include "CoreAPI.h"
+#include "CoreAPIShared.h"
+#include "CfgContextUtils.h"
+#include "NetworkUtilsRemote.h"
+#include "NetworkUtilsDefs.h"
+#include "EventRegistration.h"
+#include "EventCallback.h"
+
+// extern variables
+extern CallbackTable *remote_event_callbacks;   // from EventRegistration
+extern int main_socket_fd;      // from NetworkUtils
+extern int event_socket_fd;
+
+// forward declarations
+TSMgmtError send_and_parse_basic(OpType op);
+TSMgmtError send_and_parse_list(OpType op, LLQ * list);
+TSMgmtError send_and_parse_name(OpType op, char *name);
+TSMgmtError mgmt_record_set(const char *rec_name, const char *rec_val, TSActionNeedT * action_need);
+
+// global variables
+// need to store the thread id associated with socket_test_thread
+// in case we want to  explicitly stop/cancel the testing thread
+ink_thread ts_test_thread;
+ink_thread ts_event_thread;
+TSInitOptionT ts_init_options;
+
+/***************************************************************************
+ * Helper Functions
+ ***************************************************************************/
+/*-------------------------------------------------------------------------
+ * send_and_parse_basic (helper function)
+ *-------------------------------------------------------------------------
+ * helper function used by operations which only require sending a simple
+ * operation type and parsing a simple error return value
+ */
+TSMgmtError
+send_and_parse_basic(OpType op)
+{
+  TSMgmtError err;
+
+  err = send_request(main_socket_fd, op);
+  if (err != TS_ERR_OKAY)
+    return err;                 // networking error
+
+  err = parse_reply(main_socket_fd);
+
+  return err;
+}
+
+/*-------------------------------------------------------------------------
+ * send_and_parse_list (helper function)
+ *-------------------------------------------------------------------------
+ * helper function used by operations which only require sending a simple
+ * operation type and parsing a string delimited list
+ * (delimited with REMOTE_DELIM_STR) and storing the tokens in the list
+ * parameter
+ */
+TSMgmtError
+send_and_parse_list(OpType op, LLQ * list)
+{
+  TSMgmtError ret;
+  char *list_str;
+  const char *tok;
+  Tokenizer tokens(REMOTE_DELIM_STR);
+  tok_iter_state i_state;
+
+  if (!list)
+    return TS_ERR_PARAMS;
+
+  // create and send request
+  ret = send_request(main_socket_fd, op);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  // parse the reply = delimited list of ids of active event names
+  ret = parse_reply_list(main_socket_fd, &list_str);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  // tokenize the list_str and put into LLQ; use Tokenizer
+  if (!list_str)
+    return TS_ERR_FAIL;
+
+  tokens.Initialize(list_str, COPY_TOKS);
+  tok = tokens.iterFirst(&i_state);
+  while (tok != NULL) {
+    enqueue(list, ats_strdup(tok));        // add token to LLQ
+    tok = tokens.iterNext(&i_state);
+  }
+
+  ats_free(list_str);
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * send_and_parse_name (helper function)
+ *-------------------------------------------------------------------------
+ * helper function used by operations which only require sending a simple
+ * operation type with one string name argument and then parsing a simple
+ * TSMgmtError reply
+ * NOTE: name can be a NULL parameter!
+ */
+TSMgmtError
+send_and_parse_name(OpType op, char *name)
+{
+  TSMgmtError ret;
+
+  // create and send request
+  ret = send_request_name(main_socket_fd, op, name);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  // parse the reply
+  ret = parse_reply(main_socket_fd);
+
+  return ret;
+}
+
+
+/*-------------------------------------------------------------------------
+ * mgmt_record_set (helper function)
+ *-------------------------------------------------------------------------
+ * Helper function for all Set functions:
+ * NOTE: regardless of the type of the record being set,
+ * it is converted to a string. Then on the local side, the
+ * CoreAPI::MgmtRecordSet function will do the appropriate type
+ * converstion from the string to the record's type (eg. MgmtInt, MgmtString..)
+ * Hence, on the local side, don't have to worry about typecasting a
+ * void*. Just read out the string from socket and pass it MgmtRecordSet.
+ */
+TSMgmtError
+mgmt_record_set(const char *rec_name, const char *rec_val, TSActionNeedT * action_need)
+{
+  TSMgmtError err;
+
+  if (!rec_name || !rec_val || !action_need)
+    return TS_ERR_PARAMS;
+
+  // create and send request
+  err = send_request_name_value(main_socket_fd, RECORD_SET, rec_name, rec_val);
+  if (err != TS_ERR_OKAY)
+    return err;
+
+  // parse the reply to get TSMgmtError response and TSActionNeedT
+  err = parse_record_set_reply(main_socket_fd, action_need);
+
+  return err;
+}
+
+
+
+/***************************************************************************
+ * SetUp Operations
+ ***************************************************************************/
+TSMgmtError
+Init(const char *socket_path, TSInitOptionT options)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+
+  ts_init_options = options;
+
+  // XXX This should use RecConfigReadRuntimeDir(), but that's not linked into the management
+  // libraries. The caller has to pass down the right socket path :(
+  if (!socket_path) {
+    Layout::create();
+    socket_path = Layout::get()->runtimedir;
+  }
+
+  // store socket_path
+  set_socket_paths(socket_path);
+
+  // need to ignore SIGPIPE signal; in the case that TM is restarted
+  signal(SIGPIPE, SIG_IGN);
+
+  // EVENT setup - initialize callback queue
+  if (0 == (ts_init_options & TS_MGMT_OPT_NO_EVENTS)) {
+    remote_event_callbacks = create_callback_table("remote_callbacks");
+    if (!remote_event_callbacks)
+      return TS_ERR_SYS_CALL;
+  } else {
+    remote_event_callbacks = NULL;
+  }
+
+  // try to connect to traffic manager
+  // do this last so that everything else on client side is set up even if
+  // connection fails; this might happen if client is set up and running
+  // before TM
+  err = ts_connect();
+  if (err != TS_ERR_OKAY)
+    goto END;
+
+  // if connected, create event thread that listens for events from TM
+  if (0 == (ts_init_options & TS_MGMT_OPT_NO_EVENTS)) {
+    ts_event_thread = ink_thread_create(event_poll_thread_main, &event_socket_fd, 0, DEFAULT_STACK_SIZE);
+  } else {
+    ts_event_thread = static_cast<ink_thread>(NULL);
+  }
+
+END:
+
+  // create thread that periodically checks the socket connection
+  // with TM alive - reconnects if not alive
+  if (0 == (ts_init_options & TS_MGMT_OPT_NO_SOCK_TESTS)) {
+    ts_test_thread = ink_thread_create(socket_test_thread, NULL, 0, DEFAULT_STACK_SIZE);
+  } else {
+    ts_test_thread = static_cast<ink_thread>(NULL);
+  }
+
+  return err;
+
+}
+
+// does clean up for remote API client; destroy structures and disconnects
+TSMgmtError
+Terminate()
+{
+  TSMgmtError err;
+
+  if (remote_event_callbacks)
+    delete_callback_table(remote_event_callbacks);
+
+  // be sure to do this before reset socket_fd's
+  err = disconnect();
+  if (err != TS_ERR_OKAY)
+    return err;
+
+  // cancel the listening socket thread
+  // it's important to call this before setting paths to NULL because the
+  // socket_test_thread actually will try to reconnect() and this funntion
+  // will seg fault if the socket paths are NULL while it is connecting;
+  // the thread will be cancelled at a cancellation point in the
+  // socket_test_thread, eg. sleep
+  if (ts_test_thread)
+    ink_thread_cancel(ts_test_thread);
+  if (ts_event_thread)
+    ink_thread_cancel(ts_event_thread);
+
+  // Before clear, we should confirm these
+  // two threads have finished. Or the clear
+  // operation may lead them crash.
+  if (ts_test_thread)
+    ink_thread_join(ts_test_thread);
+  if (ts_event_thread)
+    ink_thread_join(ts_event_thread);
+
+  // Clear operation
+  ts_test_thread = static_cast<ink_thread>(NULL);
+  ts_event_thread = static_cast<ink_thread>(NULL);
+  set_socket_paths(NULL);       // clear the socket_path
+
+  return TS_ERR_OKAY;
+}
+
+// ONLY have very basic diag functionality for remote cliets.
+// When a remote client tries to use diags (wants to output runtime
+// diagnostics, the diagnostics will be outputted to the machine
+// the remote client is logged into (the one TM is running on)
+void
+Diags(TSDiagsT mode, const char *fmt, va_list ap)
+{
+  char diag_msg[MAX_BUF_SIZE];
+
+  // format the diag message now so it can be sent
+  // vsnprintf does not compile on DEC
+  vsnprintf(diag_msg, MAX_BUF_SIZE - 1, fmt, ap);
+  TSMgmtError ret = send_diags_msg(main_socket_fd, mode, diag_msg);
+  if (ret != TS_ERR_OKAY) {
+    //fprintf(stderr, "[Diags] error sending diags message\n");
+  }
+}
+
+/***************************************************************************
+ * Control Operations
+ ***************************************************************************/
+TSProxyStateT
+ProxyStateGet()
+{
+  TSMgmtError ret;
+  TSProxyStateT state;
+
+  ret = send_request(main_socket_fd, PROXY_STATE_GET);
+  if (ret != TS_ERR_OKAY)      // Networking error
+    return TS_PROXY_UNDEFINED;
+
+  ret = parse_proxy_state_get_reply(main_socket_fd, &state);
+  if (ret != TS_ERR_OKAY)      // Newtorking error
+    return TS_PROXY_UNDEFINED;
+
+  return state;
+}
+
+TSMgmtError
+ProxyStateSet(TSProxyStateT state, TSCacheClearT clear)
+{
+  TSMgmtError ret;
+
+  ret = send_proxy_state_set_request(main_socket_fd, state, clear);
+  if (ret != TS_ERR_OKAY)
+    return ret;                 // networking error
+
+  ret = parse_reply(main_socket_fd);
+
+  return ret;
+}
+
+TSMgmtError
+Reconfigure()
+{
+  return send_and_parse_basic(RECONFIGURE);
+}
+
+/*-------------------------------------------------------------------------
+ * Restart
+ *-------------------------------------------------------------------------
+ * if restart of TM is successful, need to reconnect to TM;
+ * it's possible that the SUCCESS msg is received before the
+ * restarting of TM is totally complete(?) b/c the core Restart call
+ * only signals the event putting it in a msg queue;
+ * so keep trying to reconnect until successful or for MAX_CONN_TRIES
+ */
+TSMgmtError
+Restart(bool cluster)
+{
+  TSMgmtError ret;
+
+  ret = send_request_bool(main_socket_fd, RESTART, cluster);
+  if (ret != TS_ERR_OKAY)
+    return ret;                 // networking error
+
+  ret = parse_reply(main_socket_fd);
+
+  if (ret == TS_ERR_OKAY) {
+    ret = reconnect_loop(MAX_CONN_TRIES);
+  }
+
+  return ret;
+}
+
+
+/*-------------------------------------------------------------------------
+ * Bounce
+ *-------------------------------------------------------------------------
+ * Restart the traffic_server process(es) only.
+ */
+TSMgmtError
+Bounce(bool cluster)
+{
+  TSMgmtError ret;
+
+  ret = send_request_bool(main_socket_fd, BOUNCE, cluster);
+  if (ret != TS_ERR_OKAY)
+    return ret;                 // networking error
+
+  return parse_reply(main_socket_fd);
+}
+
+
+/*-------------------------------------------------------------------------
+ * StorageDeviceCmdOffline
+ *-------------------------------------------------------------------------
+ * Disable a storage device.
+ */
+TSMgmtError
+StorageDeviceCmdOffline(char const* dev)
+{
+  TSMgmtError ret;
+  ret = send_request_name(main_socket_fd, STORAGE_DEVICE_CMD_OFFLINE, dev);
+  return TS_ERR_OKAY != ret ? ret : parse_reply(main_socket_fd);
+}
+
+/***************************************************************************
+ * Record Operations
+ ***************************************************************************/
+static TSMgmtError
+mgmt_record_get_reply(TSRecordEle * rec_ele)
+{
+  TSMgmtError ret;
+  void *val;
+  char *name;
+
+  ink_zero(*rec_ele);
+  rec_ele->rec_type = TS_REC_UNDEFINED;
+
+  // parse the reply to get record value and type
+  ret = parse_record_get_reply(main_socket_fd, &(rec_ele->rec_type), &val, &name);
+  if (ret != TS_ERR_OKAY) {
+    return ret;
+  }
+
+  // convert the record value to appropriate type
+  if (val) {
+    switch (rec_ele->rec_type) {
+    case TS_REC_INT:
+      rec_ele->valueT.int_val = *(TSInt *) val;
+      break;
+    case TS_REC_COUNTER:
+      rec_ele->valueT.counter_val = *(TSCounter *) val;
+      break;
+    case TS_REC_FLOAT:
+      rec_ele->valueT.float_val = *(TSFloat *) val;
+      break;
+    case TS_REC_STRING:
+      rec_ele->valueT.string_val = ats_strdup((char *) val);
+      break;
+    default:
+      ; // nothing ... shut up compiler!
+    }
+  }
+
+  if (name) {
+    rec_ele->rec_name = name;
+  }
+
+  ats_free(val);
+  return TS_ERR_OKAY;
+}
+
+// note that the record value is being sent as chunk of memory, regardless of
+// record type; it's not being converted to a string!!
+TSMgmtError
+MgmtRecordGet(const char *rec_name, TSRecordEle * rec_ele)
+{
+  TSMgmtError ret;
+
+  if (!rec_name || !rec_ele) {
+    return TS_ERR_PARAMS;
+  }
+
+  // create and send request
+  ret = send_record_get_request(main_socket_fd, rec_name);
+  if (ret != TS_ERR_OKAY) {
+    return ret;
+  }
+
+  return mgmt_record_get_reply(rec_ele);
+}
+
+TSMgmtError
+MgmtRecordGetMatching(const char * regex, TSList rec_vals)
+{
+  TSMgmtError       ret;
+  TSRecordEle * rec_ele;
+
+  ret = send_record_match_request(main_socket_fd, regex);
+  if (ret != TS_ERR_OKAY) {
+    return ret;
+  }
+
+  for (;;) {
+    rec_ele = TSRecordEleCreate();
+
+    // parse the reply to get record value and type
+    ret = mgmt_record_get_reply(rec_ele);
+    if (ret != TS_ERR_OKAY) {
+      goto fail;
+    }
+
+    // A NULL record ends the list.
+    if (rec_ele->rec_type == TS_REC_UNDEFINED) {
+      break;
+    }
+
+    enqueue((LLQ *) rec_vals, rec_ele);
+  }
+
+  return TS_ERR_OKAY;
+
+fail:
+
+  TSRecordEleDestroy(rec_ele);
+  for (rec_ele = (TSRecordEle *) dequeue((LLQ *) rec_vals); rec_ele; rec_ele = (TSRecordEle *) dequeue((LLQ *) rec_vals)) {
+      TSRecordEleDestroy(rec_ele);
+  }
+
+  return ret;
+}
+
+TSMgmtError
+MgmtRecordSet(const char *rec_name, const char *val, TSActionNeedT * action_need)
+{
+  TSMgmtError ret;
+
+  if (!rec_name || !val || !action_need)
+    return TS_ERR_PARAMS;
+
+  ret = mgmt_record_set(rec_name, val, action_need);
+  return ret;
+}
+
+// first convert the MgmtInt into a string
+// NOTE: use long long, not just long, MgmtInt = int64_t
+TSMgmtError
+MgmtRecordSetInt(const char *rec_name, MgmtInt int_val, TSActionNeedT * action_need)
+{
+  char str_val[MAX_RECORD_SIZE];
+  TSMgmtError ret;
+
+  if (!rec_name || !action_need)
+    return TS_ERR_PARAMS;
+
+  bzero(str_val, MAX_RECORD_SIZE);
+  snprintf(str_val, sizeof(str_val), "%" PRId64 "", int_val);
+  ret = mgmt_record_set(rec_name, str_val, action_need);
+
+  return ret;
+}
+
+// first convert the MgmtIntCounter into a string
+TSMgmtError
+MgmtRecordSetCounter(const char *rec_name, MgmtIntCounter counter_val, TSActionNeedT * action_need)
+{
+  char str_val[MAX_RECORD_SIZE];
+  TSMgmtError ret;
+
+  if (!rec_name || !action_need)
+    return TS_ERR_PARAMS;
+
+  bzero(str_val, MAX_RECORD_SIZE);
+  snprintf(str_val, sizeof(str_val), "%" PRId64 "", counter_val);
+  ret = mgmt_record_set(rec_name, str_val, action_need);
+
+  return ret;
+}
+
+// first convert the MgmtFloat into string
+TSMgmtError
+MgmtRecordSetFloat(const char *rec_name, MgmtFloat float_val, TSActionNeedT * action_need)
+{
+  char str_val[MAX_RECORD_SIZE];
+  TSMgmtError ret;
+
+  bzero(str_val, MAX_RECORD_SIZE);
+  if (snprintf(str_val, sizeof(str_val), "%f", float_val) < 0)
+    return TS_ERR_SYS_CALL;
+  ret = mgmt_record_set(rec_name, str_val, action_need);
+
+  return ret;
+}
+
+
+TSMgmtError
+MgmtRecordSetString(const char *rec_name, const char *string_val, TSActionNeedT * action_need)
+{
+  TSMgmtError ret;
+
+  if (!rec_name || !action_need)
+    return TS_ERR_PARAMS;
+
+  ret = mgmt_record_set(rec_name, string_val, action_need);
+  return ret;
+}
+
+
+/***************************************************************************
+ * File Operations
+ ***************************************************************************/
+/*-------------------------------------------------------------------------
+ * ReadFile
+ *-------------------------------------------------------------------------
+ * Purpose: returns copy of the most recent version of the file
+ * Input:   file - the config file to read
+ *          text - a buffer is allocated on the text char* pointer
+ *          size - the size of the buffer is returned
+ * Output:
+ *
+ * Marshals a read file request that can be sent over the unix domain socket.
+ * Connects to the socket and sends request over. Parses the response from
+ * Traffic Manager.
+ */
+TSMgmtError
+ReadFile(TSFileNameT file, char **text, int *size, int *version)
+{
+  TSMgmtError ret;
+
+  // marshal data into message request to be sent over socket
+  // create connection and send request
+  ret = send_file_read_request(main_socket_fd, file);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  // read response from socket and unmarshal the response
+  ret = parse_file_read_reply(main_socket_fd, version, size, text);
+
+  return ret;
+}
+
+/*-------------------------------------------------------------------------
+ * WriteFile
+ *-------------------------------------------------------------------------
+ * Purpose: replaces the current file with the file passed in;
+ *  does forceUpdate for Rollback and FileManager so correct file
+ *  versioning is maintained
+ * Input: file - the config file to write
+ *        text - text buffer to write
+ *        size - the size of the buffer to write
+ *
+ * Marshals a write file request that can be sent over the unix domain socket.
+ * Connects to the socket and sends request over. Parses the response from
+ * Traffic Manager.
+ */
+TSMgmtError
+WriteFile(TSFileNameT file, char *text, int size, int version)
+{
+  TSMgmtError ret;
+
+  ret = send_file_write_request(main_socket_fd, file, version, size, text);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  ret = parse_reply(main_socket_fd);
+
+  return ret;
+}
+
+
+/***************************************************************************
+ * Events
+ ***************************************************************************/
+/*-------------------------------------------------------------------------
+ * EventSignal
+ *-------------------------------------------------------------------------
+ * LAN - need to implement
+ */
+TSMgmtError
+EventSignal(char */* event_name ATS_UNUSED */, va_list /* ap ATS_UNUSED */)
+{
+  return TS_ERR_FAIL;
+}
+
+/*-------------------------------------------------------------------------
+ * EventResolve
+ *-------------------------------------------------------------------------
+ * purpose: Resolves the event of the specified name
+ * note:    when sending the message request, actually sends the event name,
+ *          not the event id
+ */
+TSMgmtError
+EventResolve(char *event_name)
+{
+  if (!event_name)
+    return TS_ERR_PARAMS;
+
+  return (send_and_parse_name(EVENT_RESOLVE, event_name));
+}
+
+/*-------------------------------------------------------------------------
+ * ActiveEventGetMlt
+ *-------------------------------------------------------------------------
+ * purpose: Retrieves a list of active(unresolved) events
+ * note:    list of event names returned in network msg which must be tokenized
+ */
+TSMgmtError
+ActiveEventGetMlt(LLQ * active_events)
+{
+  if (!active_events)
+    return TS_ERR_PARAMS;
+
+  return (send_and_parse_list(EVENT_GET_MLT, active_events));
+}
+
+/*-------------------------------------------------------------------------
+ * EventIsActive
+ *-------------------------------------------------------------------------
+ * determines if the event_name is active; sets result in is_current
+ */
+TSMgmtError
+EventIsActive(char *event_name, bool * is_current)
+{
+  TSMgmtError ret;
+
+  if (!event_name || !is_current)
+    return TS_ERR_PARAMS;
+
+  // create and send request
+  ret = send_request_name(main_socket_fd, EVENT_ACTIVE, event_name);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  // parse the reply
+  ret = parse_event_active_reply(main_socket_fd, is_current);
+  if (ret != TS_ERR_OKAY)
+    return ret;
+
+  return ret;
+}
+
+/*-------------------------------------------------------------------------
+ * EventSignalCbRegister
+ *-------------------------------------------------------------------------
+ * Adds the callback function in appropriate places in the remote side
+ * callback table.
+ * If this is the first callback to be registered for a certain event type,
+ * then sends a callback registration notification to TM so that TM will know
+ * which events have remote callbacks registered on it.
+ */
+TSMgmtError
+EventSignalCbRegister(char *event_name, TSEventSignalFunc func, void *data)
+{
+  bool first_time = 0;
+  TSMgmtError err;
+
+  if (func == NULL)
+    return TS_ERR_PARAMS;
+  if (!remote_event_callbacks)
+    return TS_ERR_FAIL;
+
+  err = cb_table_register(remote_event_callbacks, event_name, func, data, &first_time);
+  if (err != TS_ERR_OKAY)
+    return err;
+
+  // if we need to notify traffic manager of the event then send msg
+  if (first_time) {
+    err = send_request_name(event_socket_fd, EVENT_REG_CALLBACK, event_name);
+    if (err != TS_ERR_OKAY)
+      return err;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/*-------------------------------------------------------------------------
+ * EventSignalCbUnregister
+ *-------------------------------------------------------------------------
+ * Removes the callback function from the remote side callback table.
+ * After removing the callback function, needs to check which events now
+ * no longer have any callbacks registered at all; sends an unregister callback
+ * notification to TM so that TM knows that that event doesn't have any
+ * remote callbacks registered for it
+ * Input: event_name - the event to unregister the callback from; if NULL,
+ *                     unregisters the specified func from all events
+ *        func       - the callback function to unregister; if NULL, then
+ *                     unregisters all callback functions for the event_name
+ *                     specified
+ */
+TSMgmtError
+EventSignalCbUnregister(char *event_name, TSEventSignalFunc func)
+{
+  TSMgmtError err;
+
+  if (!remote_event_callbacks)
+    return TS_ERR_FAIL;
+
+  // remove the callback function from the table
+  err = cb_table_unregister(remote_event_callbacks, event_name, func);
+  if (err != TS_ERR_OKAY)
+    return err;
+
+  // check if we need to notify traffic manager of the event (notify TM
+  // only if the event has no callbacks)
+  err = send_unregister_all_callbacks(event_socket_fd, remote_event_callbacks);
+  if (err != TS_ERR_OKAY)
+    return err;
+
+  return TS_ERR_OKAY;
+}
+
+/***************************************************************************
+ * Snapshots
+ ***************************************************************************/
+TSMgmtError
+SnapshotTake(char *snapshot_name)
+{
+  if (!snapshot_name)
+    return TS_ERR_PARAMS;
+
+  return send_and_parse_name(SNAPSHOT_TAKE, snapshot_name);
+}
+
+TSMgmtError
+SnapshotRestore(char *snapshot_name)
+{
+  if (!snapshot_name)
+    return TS_ERR_PARAMS;
+
+  return send_and_parse_name(SNAPSHOT_RESTORE, snapshot_name);
+}
+
+TSMgmtError
+SnapshotRemove(char *snapshot_name)
+{
+  if (!snapshot_name)
+    return TS_ERR_PARAMS;
+
+  return send_and_parse_name(SNAPSHOT_REMOVE, snapshot_name);
+}
+
+TSMgmtError
+SnapshotGetMlt(LLQ * snapshots)
+{
+  return send_and_parse_list(SNAPSHOT_GET_MLT, snapshots);
+}
+
+TSMgmtError
+StatsReset(bool cluster, const char* name)
+{
+  TSMgmtError ret;
+
+  if (cluster) {
+    ret = send_request_name(main_socket_fd, STATS_RESET_CLUSTER, name);
+  } else {
+    ret = send_request_name(main_socket_fd, STATS_RESET_NODE, name);
+  }
+  if (ret != TS_ERR_OKAY)
+    return ret;                 // networking error
+
+  return parse_reply(main_socket_fd);
+}
diff --git a/mgmt/api/CoreAPIShared.cc b/mgmt/api/CoreAPIShared.cc
new file mode 100644
index 00000000..f1c00339
--- /dev/null
+++ b/mgmt/api/CoreAPIShared.cc
@@ -0,0 +1,468 @@
+/** @file
+
+  This file contains functions that are shared by local and remote
+  API; in particular it has helper functions used by TSMgmtAPI.cc
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "libts.h"
+
+#include "CoreAPIShared.h"
+#include "MgmtSocket.h"
+
+// Forward declarations, used to be in the CoreAPIShared.h include file but
+// that doesn't make any sense since these are both statically declared. /leif
+static int poll_write(int fd, int timeout);
+static int poll_read(int fd, int timeout);
+
+/* parseHTTPResponse
+ * - parse the response buffer into header and body and calculate
+ *   the correct size of the header and body.
+ * INPUT:  buffer   -- response buffer to be parsed
+ *         header   -- pointer to the head of the header
+ *         hdr_size -- size of the header
+ *         body     -- pointer to the head of the body
+ *         bdy_size -- size of the body
+ * OUTPUT: TSMgmtError -- error status
+ */
+TSMgmtError
+parseHTTPResponse(char *buffer, char **header, int *hdr_size, char **body, int *bdy_size)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+  char *buf;
+
+  // locate HTTP divider
+  if (!(buf = strstr(buffer, HTTP_DIVIDER))) {
+    err = TS_ERR_FAIL;
+    goto END;
+  }
+  // calculate header info
+  if (header)
+    *header = buffer;
+  if (hdr_size)
+    *hdr_size = buf - buffer;
+
+  // calculate body info
+  buf += strlen(HTTP_DIVIDER);
+  if (body)
+    *body = buf;
+  if (bdy_size)
+    *bdy_size = strlen(buf);
+
+END:
+  return err;
+}
+
+/* readHTTPResponse
+ * - read from an openned socket to memory-allocated buffer and close the
+ *   socket regardless success or failure.
+ * INPUT:  sock -- the socket to read the response from
+ *         buffer -- the buffer to be filled with the HTTP response
+ *         bufsize -- the size allocated for the buffer
+ * OUTPUT: bool -- true if everything went well. false otherwise
+ */
+TSMgmtError
+readHTTPResponse(int sock, char *buffer, int bufsize, uint64_t timeout)
+{
+  int64_t err, idx;
+
+  idx = 0;
+  for (;;) {
+    //      printf("%d\n", idx);
+    if (idx >= bufsize) {
+      //      printf("(test) response is too large [%d] %d\n", idx, bufsize);
+      goto error;
+    }
+    //      printf("before poll_read\n");
+    err = poll_read(sock, timeout);
+    if (err < 0) {
+      //      printf("(test) poll read failed [%d '%s']\n", errno, strerror (errno));
+      goto error;
+    } else if (err == 0) {
+      //      printf("(test) read timeout\n");
+      goto error;
+    }
+    //      printf("before do\n");
+    do {
+      //      printf("in do\n");
+      err = read(sock, &buffer[idx], bufsize - idx);
+    } while ((err < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+    //       printf("content: %s\n", buffer);
+
+    if (err < 0) {
+      //      printf("(test) read failed [%d '%s']\n", errno, strerror (errno));
+      goto error;
+    } else if (err == 0) {
+      buffer[idx] = '\0';
+      close(sock);
+      return TS_ERR_OKAY;
+    } else {
+      idx += err;
+    }
+  }
+
+error:                         /* "Houston, we have a problem!" (Apollo 13) */
+  if (sock >= 0) {
+    close_socket(sock);
+  }
+  return TS_ERR_NET_READ;
+}
+
+/* sendHTTPRequest
+ * - Compose a HTTP GET request and sent it via an openned socket.
+ * INPUT:  sock -- the socket to send the message to
+ *         req  -- the request to send
+ * OUTPUT: bool -- true if everything went well. false otherwise (and sock is
+ *                 closed)
+ */
+TSMgmtError
+sendHTTPRequest(int sock, char *req, uint64_t timeout)
+{
+  char request[BUFSIZ];
+  char *requestPtr;
+  size_t length = 0;
+
+  memset(request, 0, BUFSIZ);
+  snprintf(request, BUFSIZ, "GET %s HTTP/1.0\r\n\r\n", req);
+  length = strlen(request);
+
+  int err = poll_write(sock, timeout);
+  if (err < 0) {
+    //      printf("(test) poll write failed [%d '%s']\n", errno, strerror (errno));
+    goto error;
+  } else if (err == 0) {
+    //      printf("(test) write timeout\n");
+    goto error;
+  }
+  // Write the request to the server.
+  requestPtr = request;
+  while (length > 0) {
+    do {
+      err = write(sock, request, length);
+    } while ((err < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+    if (err < 0) {
+      //      printf("(test) write failed [%d '%s']\n", errno, strerror (errno));
+      goto error;
+    }
+    requestPtr += err;
+    length -= err;
+  }
+
+  /* everything went well */
+  return TS_ERR_OKAY;
+
+error:                         /* "Houston, we have a problem!" (Apollo 13) */
+  if (sock >= 0) {
+    close_socket(sock);
+  }
+  return TS_ERR_NET_WRITE;
+}
+
+
+
+/* Modified from TrafficCop.cc (open_socket) */
+int
+connectDirect(const char *host, int port, uint64_t /* timeout ATS_UNUSED */)
+{
+  int sock;
+
+  // Create a socket
+  do {
+    sock = socket(AF_INET, SOCK_STREAM, 0);
+  } while ((sock < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+  if (sock < 0) {
+    //        printf("(test) unable to create socket [%d '%s']\n", errno, strerror(errno));
+    goto error;
+  }
+
+  struct sockaddr_in name;
+  memset((void *) &name, 0, sizeof(sockaddr_in));
+
+  int err;
+
+  // Put the socket in non-blocking mode...just to be extra careful
+  // that we never block.
+  do {
+    err = fcntl(sock, F_SETFL, O_NONBLOCK);
+  } while ((err < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+  if (err < 0) {
+    //        printf("(test) unable to put socket in non-blocking mode [%d '%s']\n", errno, strerror (errno));
+    goto error;
+  }
+  // Connect to the specified port on the machine we're running on.
+  name.sin_family = AF_INET;
+  name.sin_port = htons(port);
+
+  struct hostent *pHostent;
+  pHostent = gethostbyname(host);
+  if (!pHostent) {
+    goto error;
+  }
+  memcpy((caddr_t)&(name.sin_addr), pHostent->h_addr, pHostent->h_length);
+
+  do {
+    err = connect(sock, (struct sockaddr *) &name, sizeof(name));
+  } while ((err < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+  if ((err < 0) && (errno != EINPROGRESS)) {
+    //        printf("(test) unable to connect to server [%d '%s'] at port %d\n", errno, strerror (errno), port);
+    goto error;
+  }
+  return sock;
+
+error:
+  if (sock >= 0) {
+    close_socket(sock);
+  }
+  return -1;
+}                               /* connectDirect */
+
+/* COPIED direclty form TrafficCop.cc */
+static int
+poll_read(int fd, int timeout)
+{
+  struct pollfd info;
+  int err;
+
+  info.fd = fd;
+  info.events = POLLIN;
+  info.revents = 0;
+
+  do {
+    err = poll(&info, 1, timeout);
+  } while ((err < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+  if ((err > 0) && (info.revents & POLLIN)) {
+    return 1;
+  }
+
+  return err;
+}
+
+static int
+poll_write(int fd, int timeout)
+{
+  struct pollfd info;
+  int err;
+
+  info.fd = fd;
+  info.events = POLLOUT;
+  info.revents = 0;
+
+  do {
+    err = poll(&info, 1, timeout);
+  } while ((err < 0) && ((errno == EINTR) || (errno == EAGAIN)));
+
+
+  if ((err > 0) && (info.revents & POLLOUT)) {
+    return 1;
+  }
+
+  return err;
+}
+
+/***************************************************************************
+ * socket_read_timeout
+ *
+ * purpose: need timeout for socket after sending a request and waiting to
+ *          read reply check to see if anything to read;
+ *          but only wait for fixed time specified in timeout struct
+ * input: fd   - the socket to wait for
+ *        sec  - time to wait in secs
+ *        usec - time to wait in usecs
+ * output: returns 0 if time expires and the fd is not ready
+ *         return > 0 (actually 1) if fd is ready to read
+ * reason: the client could send a reply, but if TM is down or has
+ *         problems sending a reply then the client could end up hanging,
+ *         waiting to read a replay from the local side
+ ***************************************************************************/
+int
+socket_read_timeout(int fd, int sec, int usec)
+{
+  struct timeval timeout;
+  fd_set readSet;
+  timeout.tv_sec = sec;
+  timeout.tv_usec = usec;
+
+  if (fd < 0)
+    return -1;                  //ERROR: invalid fd
+
+  FD_ZERO(&readSet);
+  FD_SET(fd, &readSet);
+
+  return (mgmt_select(fd + 1, &readSet, NULL, NULL, &timeout));
+}
+
+/***************************************************************************
+ * socket_write_timeout
+ *
+ * purpose: checks if the specified socket is ready to be written too; only
+ *          checks for the specified time
+ * input: fd   - the socket to wait for
+ *        sec  - time to wait in secs
+ *        usec - time to wait in usecs
+ * output: return   0 if time expires and the fd is not ready to be written
+ *         return > 0 (actually 1) if fd is ready to be written
+ *         return < 0 if error
+ ***************************************************************************/
+int
+socket_write_timeout(int fd, int sec, int usec)
+{
+  struct timeval timeout;
+  fd_set writeSet;
+  timeout.tv_sec = sec;
+  timeout.tv_usec = usec;
+
+  if (fd < 0)
+    return -1;
+
+  FD_ZERO(&writeSet);
+  FD_SET(fd, &writeSet);
+
+  if (sec < 0 && usec < 0)
+    //blocking select; only returns when fd is ready to write
+    return (mgmt_select(fd + 1, NULL, &writeSet, NULL, NULL));
+  else
+    return (mgmt_select(fd + 1, NULL, &writeSet, NULL, &timeout));
+}
+
+
+
+/**********************************************************************
+ * Events
+ **********************************************************************/
+/**********************************************************************
+ * get_event_id
+ *
+ * Purpose: Given the event_name, returns the event's corresponding
+ *          event id
+ * Note: this conversion is based on list defined in Alarms.h and
+ *       the identical list defined in CoreAPIShared.cc
+ *********************************************************************/
+int
+get_event_id(const char *event_name)
+{
+  if (strcmp("MGMT_ALARM_PROXY_PROCESS_DIED", event_name) == 0) {
+    return MGMT_ALARM_PROXY_PROCESS_DIED;
+  } else if (strcmp("MGMT_ALARM_PROXY_PROCESS_BORN", event_name) == 0) {
+    return MGMT_ALARM_PROXY_PROCESS_BORN;
+  } else if (strcmp("MGMT_ALARM_PROXY_PEER_BORN", event_name) == 0) {
+    return MGMT_ALARM_PROXY_PEER_BORN;
+  } else if (strcmp("MGMT_ALARM_PROXY_PEER_DIED", event_name) == 0) {
+    return MGMT_ALARM_PROXY_PEER_DIED;
+  } else if (strcmp("MGMT_ALARM_PROXY_CONFIG_ERROR", event_name) == 0) {
+    return MGMT_ALARM_PROXY_CONFIG_ERROR;
+  } else if (strcmp("MGMT_ALARM_PROXY_SYSTEM_ERROR", event_name) == 0) {
+    return MGMT_ALARM_PROXY_SYSTEM_ERROR;
+  } else if (strcmp("MGMT_ALARM_PROXY_LOG_SPACE_CRISIS", event_name) == 0) {
+    return MGMT_ALARM_PROXY_LOG_SPACE_CRISIS;
+  } else if (strcmp("MGMT_ALARM_PROXY_CACHE_ERROR", event_name) == 0) {
+    return MGMT_ALARM_PROXY_CACHE_ERROR;
+  } else if (strcmp("MGMT_ALARM_PROXY_CACHE_WARNING", event_name) == 0) {
+    return MGMT_ALARM_PROXY_CACHE_WARNING;
+  } else if (strcmp("MGMT_ALARM_PROXY_LOGGING_ERROR", event_name) == 0) {
+    return MGMT_ALARM_PROXY_LOGGING_ERROR;
+  } else if (strcmp("MGMT_ALARM_PROXY_LOGGING_WARNING", event_name) == 0) {
+    return MGMT_ALARM_PROXY_LOGGING_WARNING;
+  } else if (strcmp("MGMT_ALARM_MGMT_TEST", event_name) == 0) {
+    return MGMT_ALARM_MGMT_TEST;
+  } else if (strcmp("MGMT_ALARM_CONFIG_UPDATE_FAILED", event_name) == 0) {
+    return MGMT_ALARM_CONFIG_UPDATE_FAILED;
+  } else if (strcmp("MGMT_ALARM_WEB_ERROR", event_name) == 0) {
+    return MGMT_ALARM_WEB_ERROR;
+  } else if (strcmp("MGMT_ALARM_PING_FAILURE", event_name) == 0) {
+    return MGMT_ALARM_PING_FAILURE;
+  }
+
+  return -1;
+}
+
+/**********************************************************************
+ * get_event_id
+ *
+ * Purpose: based on alarm_id, determine the corresonding alarm name
+ * Note:    allocates memory for the name returned
+ *********************************************************************/
+char *
+get_event_name(int id)
+{
+  char name[MAX_EVENT_NAME_SIZE];
+
+  memset(name, 0, MAX_EVENT_NAME_SIZE);
+  switch (id) {
+  case MGMT_ALARM_PROXY_PROCESS_DIED:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_PROCESS_DIED", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_PROCESS_BORN:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_PROCESS_BORN", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_PEER_BORN:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_PEER_BORN", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_PEER_DIED:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_PEER_DIED", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_CONFIG_ERROR:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_CONFIG_ERROR", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_SYSTEM_ERROR:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_SYSTEM_ERROR", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_LOG_SPACE_CRISIS:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_LOG_SPACE_CRISIS", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_CACHE_ERROR:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_CACHE_ERROR", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_CACHE_WARNING:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_CACHE_WARNING", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_LOGGING_ERROR:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_LOGGING_ERROR", sizeof(name));
+    break;
+  case MGMT_ALARM_PROXY_LOGGING_WARNING:
+    ink_strlcpy(name, "MGMT_ALARM_PROXY_LOGGING_WARNING", sizeof(name));
+    break;
+  case MGMT_ALARM_MGMT_TEST:
+    ink_strlcpy(name, "MGMT_ALARM_MGMT_TEST", sizeof(name));
+    break;
+  case MGMT_ALARM_CONFIG_UPDATE_FAILED:
+    ink_strlcpy(name, "MGMT_ALARM_CONFIG_UPDATE_FAILED", sizeof(name));
+    break;
+  case MGMT_ALARM_WEB_ERROR:
+    ink_strlcpy(name, "MGMT_ALARM_WEB_ERROR", sizeof(name));
+    break;
+  case MGMT_ALARM_PING_FAILURE:
+    ink_strlcpy(name, "MGMT_ALARM_PING_FAILURE", sizeof(name));
+    break;
+  case MGMT_ALARM_MGMT_CONFIG_ERROR:
+    ink_strlcpy(name, "MGMT_ALARM_MGMT_CONFIG_ERROR", sizeof(name));
+    break;
+  case MGMT_ALARM_ADD_ALARM:
+    ink_strlcpy(name, "MGMT_ALARM_ADD_ALARM", sizeof(name));
+    break;
+  default:
+    return NULL;
+  }
+
+  return ats_strdup(name);
+}
diff --git a/mgmt/api/CoreAPIShared.h b/mgmt/api/CoreAPIShared.h
new file mode 100644
index 00000000..f36d5f9c
--- /dev/null
+++ b/mgmt/api/CoreAPIShared.h
@@ -0,0 +1,88 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: CoreAPIShared.h
+ * Purpose: This file contains functions that are same for local and remote API
+ * Created: 01/29/00
+ * Created by: Lan Tran
+ *
+ *
+ ***************************************************************************/
+
+#ifndef _CORE_API_SHARED_H_
+#define _CORE_API_SHARED_H_
+
+#include "mgmtapi.h"
+
+#define NUM_EVENTS          19  // number of predefined TM events
+#define MAX_EVENT_NAME_SIZE 100 // max length for an event name
+#define MAX_RECORD_SIZE     20  // max length of buffer to hold record values
+
+// LAN - BAD BHACK; copied from Alarms.h !!!!!
+/* Must be same as defined in Alarms.h; the reason we had to
+ * redefine them here is because the remote client also needs
+ * access to these values for its event handling
+ */
+#define MGMT_ALARM_UNDEFINED                     0
+#define MGMT_ALARM_PROXY_PROCESS_DIED            1
+#define MGMT_ALARM_PROXY_PROCESS_BORN            2
+#define MGMT_ALARM_PROXY_PEER_BORN               3
+#define MGMT_ALARM_PROXY_PEER_DIED               4
+#define MGMT_ALARM_PROXY_CONFIG_ERROR            5
+#define MGMT_ALARM_PROXY_SYSTEM_ERROR            6
+#define MGMT_ALARM_PROXY_LOG_SPACE_CRISIS        7
+#define MGMT_ALARM_PROXY_CACHE_ERROR             8
+#define MGMT_ALARM_PROXY_CACHE_WARNING           9
+#define MGMT_ALARM_PROXY_LOGGING_ERROR           10
+#define MGMT_ALARM_PROXY_LOGGING_WARNING         11
+// Currently unused: 12
+#define MGMT_ALARM_MGMT_TEST                     13
+#define MGMT_ALARM_CONFIG_UPDATE_FAILED          14
+#define MGMT_ALARM_WEB_ERROR                     15
+#define MGMT_ALARM_PING_FAILURE	                 16
+#define MGMT_ALARM_MGMT_CONFIG_ERROR             17
+#define MGMT_ALARM_ADD_ALARM                     18
+
+// used by TSReadFromUrl
+#define HTTP_DIVIDER "\r\n\r\n"
+#define URL_BUFSIZE  65536      // the max. lenght of URL obtainable (in bytes)
+#define URL_TIMEOUT  5000       // the timeout value for send/recv HTTP in ms
+#define HTTP_PORT    80
+#define BUFSIZE      1024
+
+// used by TSReadFromUrl
+TSMgmtError parseHTTPResponse(char *buffer, char **header, int *hdr_size, char **body, int *bdy_size);
+TSMgmtError readHTTPResponse(int sock, char *buffer, int bufsize, uint64_t timeout);
+TSMgmtError sendHTTPRequest(int sock, char *request, uint64_t timeout);
+int connectDirect(const char *host, int port, uint64_t timeout);
+
+// used by NetworkUtilRemote.cc and NetworkUtilLocal.cc
+int socket_read_timeout(int fd, int sec, int usec);
+int socket_write_timeout(int fd, int sec, int usec);
+
+// used for Events
+int get_event_id(const char *event_name);
+char *get_event_name(int id);
+
+#endif
diff --git a/mgmt/api/EventCallback.cc b/mgmt/api/EventCallback.cc
new file mode 100644
index 00000000..8183f1ce
--- /dev/null
+++ b/mgmt/api/EventCallback.cc
@@ -0,0 +1,346 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: EventCallback.cc
+ * Purpose: Generic module that deals with callbacks and a callback table
+ * Created: 01/08/01
+ * Created by: lant
+ *
+ ***************************************************************************/
+
+#include "ink_config.h"
+#include "ink_memory.h"
+
+#include "EventCallback.h"
+#include "CoreAPIShared.h"
+
+
+/**********************************************************************
+ * create_event_callback
+ *
+ * purpose: allocates and initializes members of EventCallbackT
+ * input: None
+ * output: EventCallbackT
+ * notes: None
+ **********************************************************************/
+EventCallbackT *
+create_event_callback(TSEventSignalFunc func, void *data)
+{
+  EventCallbackT *event_cb = (EventCallbackT *)ats_malloc(sizeof(EventCallbackT));
+
+  event_cb->func = func;
+  event_cb->data = data;
+
+  return event_cb;
+}
+
+/**********************************************************************
+ * delete_event_callback
+ *
+ * purpose:frees EventCallbackT
+ * input: None
+ * output: EventCallbackT
+ * notes: also frees memory for the data passed in; ASSUMES data was
+ *        dynamically allocated
+ **********************************************************************/
+void
+delete_event_callback(EventCallbackT * event_cb)
+{
+
+  ats_free(event_cb);
+  return;
+}
+
+/**********************************************************************
+ * create_callback_table
+ *
+ * purpose: initializes the structures used to deal with events
+ * input: None
+ * output: TS_ERR_xx
+ * notes: None
+ **********************************************************************/
+CallbackTable *
+create_callback_table(const char *lock_name)
+{
+  CallbackTable *cb_table = (CallbackTable *)ats_malloc(sizeof(CallbackTable));
+
+  for (int i = 0; i < NUM_EVENTS; i++)
+    cb_table->event_callback_l[i] = NULL;
+
+  // initialize the mutex
+  ink_mutex_init(&cb_table->event_callback_lock, lock_name);
+  return cb_table;
+}
+
+
+/**********************************************************************
+ * delete_callback_table
+ *
+ * purpose: frees the memory allocated for a CallbackTable; also
+ *          destroys the lock
+ * input: None
+ * output: None
+ * notes: doesn't free pointers to functions
+ **********************************************************************/
+void
+delete_callback_table(CallbackTable * cb_table)
+{
+  EventCallbackT *event_cb;
+
+  // get lock
+  ink_mutex_acquire(&cb_table->event_callback_lock);
+
+  // for each event
+  for (int i = 0; i < NUM_EVENTS; i++) {
+    if (cb_table->event_callback_l[i]) {
+      // remove and delete each EventCallbackT for that event
+      while (!queue_is_empty(cb_table->event_callback_l[i])) {
+        event_cb = (EventCallbackT *) dequeue(cb_table->event_callback_l[i]);
+        delete_event_callback(event_cb);
+      }
+
+      delete_queue(cb_table->event_callback_l[i]);
+    }
+  }
+
+  // release lock
+  ink_mutex_release(&cb_table->event_callback_lock);
+
+  //destroy lock
+  ink_mutex_destroy(&cb_table->event_callback_lock);
+
+  ats_free(cb_table);
+
+  return;
+}
+
+/**********************************************************************
+ * get_events_with_callbacks
+ *
+ * purpose:  returns a list of the event_id's that have at least
+ *           one callback registered for that event
+ * input: cb_list - the table of callbacks to check
+ * output: returns a list of event_ids with at least one callback fun;
+ *         returns NULL if all the events have a registered callback
+ * notes:
+ **********************************************************************/
+LLQ *
+get_events_with_callbacks(CallbackTable * cb_table)
+{
+  LLQ *cb_ev_list;
+  bool all_events = true;       //set to false if at least one event doesn't have registered callback
+
+  cb_ev_list = create_queue();
+  for (int i = 0; i < NUM_EVENTS; i++) {
+    if (!cb_table->event_callback_l[i]) {
+      all_events = false;
+      continue;                 // no callbacks registered
+    }
+
+    enqueue(cb_ev_list, &i);
+  }
+
+  if (all_events) {
+    delete_queue(cb_ev_list);
+    return NULL;
+  }
+
+  return cb_ev_list;
+}
+
+/**********************************************************************
+ * cb_table_register
+ *
+ * purpose: Registers the specified function for the specified event in
+ *          the specified callback list
+ * input: cb_list - the table of callbacks to store the callback fn
+ *        event_name - the event to store the callback for (if NULL, register for all events)
+ *        func - the callback function
+ *        first_cb - true only if this is the event's first callback
+ * output: TS_ERR_xx
+ * notes:
+ **********************************************************************/
+TSMgmtError
+cb_table_register(CallbackTable * cb_table, char *event_name, TSEventSignalFunc func, void *data, bool * first_cb)
+{
+  bool first_time = 0;
+  int id;
+  EventCallbackT *event_cb;     // create new EventCallbackT EACH TIME enqueue
+
+  // the data and event_name can be NULL
+  if (func == NULL || !cb_table)
+    return TS_ERR_PARAMS;
+
+  ink_mutex_acquire(&(cb_table->event_callback_lock));
+
+  // got lock, add it
+  if (event_name == NULL) {     // register for all alarms
+    //printf("[EventSignalCbRegister] Register callback for all alarms\n");
+    for (int i = 0; i < NUM_EVENTS; i++) {
+      if (!cb_table->event_callback_l[i]) {
+        cb_table->event_callback_l[i] = create_queue();
+        first_time = 1;
+      }
+
+      if (!cb_table->event_callback_l[i]) {
+        ink_mutex_release(&cb_table->event_callback_lock);
+        return TS_ERR_SYS_CALL;
+      }
+
+      event_cb = create_event_callback(func, data);
+      enqueue(cb_table->event_callback_l[i], event_cb);
+    }
+  } else {                      // register callback for specific alarm
+    //printf("[EventSignalCbRegister] Register callback for %s\n", event_name);
+    id = get_event_id(event_name);
+    if (!cb_table->event_callback_l[id]) {
+      cb_table->event_callback_l[id] = create_queue();
+      first_time = 1;
+    }
+
+    if (!cb_table->event_callback_l[id]) {
+      ink_mutex_release(&cb_table->event_callback_lock);
+      return TS_ERR_SYS_CALL;
+    }
+    // now add to list
+    event_cb = create_event_callback(func, data);
+    enqueue(cb_table->event_callback_l[id], event_cb);
+  }
+
+  // release lock on callback table
+  ink_mutex_release(&cb_table->event_callback_lock);
+
+  if (first_cb)
+    *first_cb = first_time;
+
+  return TS_ERR_OKAY;
+}
+
+
+/**********************************************************************
+ * cb_table_unregister
+ *
+ * purpose: Unregisters the specified function for the specified event in
+ *          the specified callback list
+ * input: cb_table - the table of callbacks to store the callback fn
+ *        event_name - the event to store the callback for (if NULL, register for all events)
+ *        func - the callback function
+ *        first_cb - true only if this is the event's first callback
+ * output: TS_ERR_xx
+ * notes:
+ **********************************************************************/
+TSMgmtError
+cb_table_unregister(CallbackTable * cb_table, char *event_name, TSEventSignalFunc func)
+{
+  TSEventSignalFunc cb_fun;
+  EventCallbackT *event_cb;
+
+  ink_mutex_acquire(&cb_table->event_callback_lock);
+
+  // got lock, add it
+  if (event_name == NULL) {     // unregister the callback for ALL EVENTS
+    // for each event
+    for (int i = 0; i < NUM_EVENTS; i++) {
+      if (!cb_table->event_callback_l[i])       // this event has no callbacks
+        continue;
+
+      // func == NULL means unregister all functions associated with alarm
+      if (func == NULL) {
+        while (!queue_is_empty(cb_table->event_callback_l[i])) {
+          event_cb = (EventCallbackT *) dequeue(cb_table->event_callback_l[i]);
+          delete_event_callback(event_cb);
+        }
+        // clean up queue and set to NULL
+        delete_queue(cb_table->event_callback_l[i]);
+        cb_table->event_callback_l[i] = NULL;
+      } else {                  // only remove the func passed in
+        int queue_depth;
+
+        queue_depth = queue_len(cb_table->event_callback_l[i]);
+        // remove this function
+        for (int j = 0; j < queue_depth; j++) {
+          event_cb = (EventCallbackT *) dequeue(cb_table->event_callback_l[i]);
+          cb_fun = event_cb->func;
+
+          // the pointers are the same so don't enqueue the fn back on
+          if (*cb_fun == *func) {
+            delete_event_callback(event_cb);
+            continue;
+          }
+
+          enqueue(cb_table->event_callback_l[i], event_cb);
+        }
+
+        // is queue empty now? then clean up
+        if (queue_is_empty(cb_table->event_callback_l[i])) {
+          delete_queue(cb_table->event_callback_l[i]);
+          cb_table->event_callback_l[i] = NULL;
+        }
+      }
+    }                           // end for (int i = 0; i < NUM_EVENTS; i++) {
+  } else {
+    // unregister for specific event
+    int id = get_event_id(event_name);
+    if (cb_table->event_callback_l[id]) {
+      int queue_depth;
+
+      queue_depth = queue_len(cb_table->event_callback_l[id]);
+      // func == NULL means unregister all functions associated with alarm
+      if (func == NULL) {
+        while (!queue_is_empty(cb_table->event_callback_l[id])) {
+          event_cb = (EventCallbackT *) dequeue(cb_table->event_callback_l[id]);
+          delete_event_callback(event_cb);
+        }
+
+        // clean up queue and set to NULL
+        delete_queue(cb_table->event_callback_l[id]);
+        cb_table->event_callback_l[id] = NULL;
+      } else {
+        // remove this function
+        for (int j = 0; j < queue_depth; j++) {
+          event_cb = (EventCallbackT *) dequeue(cb_table->event_callback_l[id]);
+          cb_fun = event_cb->func;
+
+          // the pointers are the same
+          if (*cb_fun == *func) {
+            delete_event_callback(event_cb);
+            continue;
+          }
+
+          enqueue(cb_table->event_callback_l[id], event_cb);
+        }
+
+        // is queue empty now?
+        if (queue_is_empty(cb_table->event_callback_l[id])) {
+          delete_queue(cb_table->event_callback_l[id]);
+          cb_table->event_callback_l[id] = NULL;
+        }
+      }                         // end if NULL else
+    }
+  }
+
+  ink_mutex_release(&cb_table->event_callback_lock);
+
+  return TS_ERR_OKAY;
+}
diff --git a/mgmt/api/EventCallback.h b/mgmt/api/EventCallback.h
new file mode 100644
index 00000000..6c50f963
--- /dev/null
+++ b/mgmt/api/EventCallback.h
@@ -0,0 +1,85 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ * EventCallback.h
+ * Purpose:  defines the CallbackTable which stores callback functions for
+ *           specific events
+ *
+ *
+ ***************************************************************************/
+/*
+ * EventCallback.h
+ *
+ * defines the CallbackTable which stores callback functions for
+ * specific events. Used by both local api and remote api.
+ */
+
+#ifndef _EVENT_CALLBACK_H_
+#define _EVENT_CALLBACK_H_
+
+#include "ink_llqueue.h"
+
+#include "mgmtapi.h"
+#include "CoreAPIShared.h"
+
+// when registering the callback function, can pass in void* data which
+// will then be passed to the callback function; need to store this data with
+// the callback in a struct
+typedef struct
+{
+  TSEventSignalFunc func;
+  void *data;
+} EventCallbackT;
+
+// event_call_back_l is a queue of EventCallbackT
+typedef struct
+{
+  LLQ *event_callback_l[NUM_EVENTS];
+  ink_mutex event_callback_lock;
+} CallbackTable;
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+EventCallbackT *create_event_callback(TSEventSignalFunc func, void *data);
+void delete_event_callback(EventCallbackT * event_cb);
+
+CallbackTable *create_callback_table(const char *lock_name);
+
+void delete_callback_table(CallbackTable * cb_table);
+
+// returns list of event_id that have at least one callback registered for it
+LLQ *get_events_with_callbacks(CallbackTable * cb_table);
+
+TSMgmtError cb_table_register(CallbackTable * cb_table, char *event_name, TSEventSignalFunc func, void *data,
+                           bool * first_cb);
+TSMgmtError cb_table_unregister(CallbackTable * cb_table, char *event_name, TSEventSignalFunc func);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
diff --git a/mgmt/api/EventControlMain.cc b/mgmt/api/EventControlMain.cc
new file mode 100644
index 00000000..882cb4e9
--- /dev/null
+++ b/mgmt/api/EventControlMain.cc
@@ -0,0 +1,502 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: EventControlMain.cc
+ * Purpose: Handles all event requests from the user.
+ * Created: 01/08/01
+ * Created by: lant
+ *
+ ***************************************************************************/
+
+#include "libts.h"
+#include "LocalManager.h"
+#include "MgmtSocket.h"
+#include "EventControlMain.h"
+#include "CoreAPI.h"
+#include "NetworkUtilsLocal.h"
+#include "NetworkUtilsDefs.h"
+
+
+// variables that are very important
+ink_mutex mgmt_events_lock;
+LLQ *mgmt_events;
+InkHashTable *accepted_clients; // list of all accepted client connections
+
+/*********************************************************************
+ * new_event_client
+ *
+ * purpose: creates a new EventClientT and return pointer to it
+ * input: None
+ * output: EventClientT
+ * note: None
+ *********************************************************************/
+EventClientT *
+new_event_client()
+{
+  EventClientT *ele = (EventClientT *)ats_malloc(sizeof(EventClientT));
+
+  // now set the alarms registered section
+  for (int i = 0; i < NUM_EVENTS; i++)
+    ele->events_registered[i] = 0;
+
+  ele->adr = (struct sockaddr *)ats_malloc(sizeof(struct sockaddr));
+  return ele;
+}
+
+/*********************************************************************
+ * delete_event_client
+ *
+ * purpose: frees memory allocated for an EventClientT
+ * input: EventClientT
+ * output: None
+ * note: None
+ *********************************************************************/
+void
+delete_event_client(EventClientT * client)
+{
+  if (client) {
+    ats_free(client->adr);
+    ats_free(client);
+  }
+  return;
+}
+
+/*********************************************************************
+ * remove_event_client
+ *
+ * purpose: removes the EventClientT from the specified hashtable; includes
+ *          removing the binding and freeing the ClientT
+ * input: client - the ClientT to remove
+ * output:
+ *********************************************************************/
+void
+remove_event_client(EventClientT * client, InkHashTable * table)
+{
+  // close client socket
+  close_socket(client->sock_info.fd);       // close client socket
+
+  // remove client binding from hash table
+  ink_hash_table_delete(table, (char *) &client->sock_info.fd);
+
+  // free ClientT
+  delete_event_client(client);
+
+  return;
+}
+
+/*********************************************************************
+ * init_mgmt_events
+ *
+ * purpose: initializes the mgmt_events queue which is intended to hold
+ *          TM events.
+ * input:
+ * output: TS_ERR_xx
+ * note: None
+ *********************************************************************/
+TSMgmtError
+init_mgmt_events()
+{
+  int ret;
+
+  ret = ink_mutex_init(&mgmt_events_lock, "mgmt_event_notice");
+
+  if (ret)
+    return TS_ERR_SYS_CALL;
+
+  // initialize queue
+  mgmt_events = create_queue();
+  if (!mgmt_events) {
+    ink_mutex_destroy(&mgmt_events_lock);
+    return TS_ERR_SYS_CALL;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+
+/*********************************************************************
+ * delete_mgmt_events
+ *
+ * purpose: frees the mgmt_events queue.
+ * input:
+ * output: None
+ * note: None
+ *********************************************************************/
+void
+delete_mgmt_events()
+{
+  // obtain lock
+  ink_mutex_acquire(&mgmt_events_lock);
+
+  // delete the queue associated with the queue of events
+  delete_event_queue(mgmt_events);
+
+  // release it
+  ink_mutex_release(&mgmt_events_lock);
+
+  // kill lock
+  ink_mutex_destroy(&mgmt_events_lock);
+
+  delete_queue(mgmt_events);
+
+  return;
+}
+
+/*********************************************************************
+ * delete_event_queue
+ *
+ * purpose: frees queue where the elements are of type TSMgmtEvent* 's
+ * input: LLQ * q - a queue with entries of TSMgmtEvent*'s
+ * output: None
+ * note: None
+ *********************************************************************/
+void
+delete_event_queue(LLQ * q)
+{
+  if (!q)
+    return;
+
+  // now for every element, dequeue and free
+  TSMgmtEvent *ele;
+
+  while (!queue_is_empty(q)) {
+    ele = (TSMgmtEvent *) dequeue(q);
+    ats_free(ele);
+  }
+
+  delete_queue(q);
+  return;
+}
+
+/*********************************************************************
+ * apiEventCallback
+ *
+ * purpose: callback function registered with alarm processor so that
+ *          each time alarm is signalled, can enqueue it in the mgmt_events
+ *          queue
+ * input:
+ * output: None
+ * note: None
+ *********************************************************************/
+void
+apiEventCallback(alarm_t newAlarm, const char * /* ip ATS_UNUSED */, const char *desc)
+{
+  // create an TSMgmtEvent
+  // addEvent(new_alarm, ip, desc) // adds event to mgmt_events
+  TSMgmtEvent *newEvent;
+
+  newEvent = TSEventCreate();
+  newEvent->id = newAlarm;
+  newEvent->name = get_event_name(newEvent->id);
+  //newEvent->ip   = ats_strdup(ip);
+  if (desc)
+    newEvent->description = ats_strdup(desc);
+  else
+    newEvent->description = ats_strdup("None");
+
+  //add it to the mgmt_events list
+  ink_mutex_acquire(&mgmt_events_lock);
+  enqueue(mgmt_events, newEvent);
+  ink_mutex_release(&mgmt_events_lock);
+
+  return;
+}
+
+/*********************************************************************
+ * event_callback_main
+ *
+ * This function is run as a thread in WebIntrMain.cc that listens on a
+ * specified socket. It loops until Traffic Manager dies.
+ * In the loop, it just listens on a socket, ready to accept any connections,
+ * until receives a request from the remote API client. Parse the request
+ * to determine which CoreAPI call to make.
+ *********************************************************************/
+void *
+event_callback_main(void *arg)
+{
+  int ret;
+  OpType op_t;                  // what kind of operation?
+  int *socket_fd;
+  int con_socket_fd;            // main socket for listening to new connections
+  char *req;                    // the request msg sent over from client
+
+  socket_fd = (int *) arg;
+  con_socket_fd = *socket_fd;   // the socket for event callbacks
+
+  Debug("event", "[event_callback_main] listen on socket = %d\n", con_socket_fd);
+
+  // initialize queue for accepted con
+  accepted_clients = ink_hash_table_create(InkHashTableKeyType_Word);
+  if (!accepted_clients) {
+    return NULL;
+  }
+  // initialize queue for holding mgmt events
+  if ((ret = init_mgmt_events()) != TS_ERR_OKAY) {
+    ink_hash_table_destroy(accepted_clients);
+    return NULL;
+  }
+  // register callback with alarms processor
+  lmgmt->alarm_keeper->registerCallback(apiEventCallback);
+
+  // now we can start listening, accepting connections and servicing requests
+  int new_con_fd;               // new connection fd when socket accepts connection
+
+  fd_set selectFDs;             // for select call
+  InkHashTableEntry *con_entry; // used to obtain fd to alarms mapping
+  EventClientT *client_entry;   // an entry of fd to alarms mapping
+  InkHashTableIteratorState con_state;  // used to iterate through hash table
+  int fds_ready;                // return value for select go here
+  struct timeval timeout;
+  int addr_len = (sizeof(struct sockaddr));
+
+  while (1) {
+    // LINUX fix: to prevent hard-spin reset timeout on each loop
+    timeout.tv_sec = 1;
+    timeout.tv_usec = 0;
+
+    FD_ZERO(&selectFDs);
+
+    if (con_socket_fd >= 0) {
+      FD_SET(con_socket_fd, &selectFDs);
+      Debug("event", "[event_callback_main] add fd %d to select set\n", con_socket_fd);
+    }
+    // see if there are more fd to set
+    con_entry = ink_hash_table_iterator_first(accepted_clients, &con_state);
+
+    // iterate through all entries in hash table
+    while (con_entry) {
+      client_entry = (EventClientT *) ink_hash_table_entry_value(accepted_clients, con_entry);
+      if (client_entry->sock_info.fd >= 0) {    // add fd to select set
+        FD_SET(client_entry->sock_info.fd, &selectFDs);
+      }
+      con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+    }
+
+    // select call - timeout is set so we can check events at regular intervals
+    fds_ready = mgmt_select(FD_SETSIZE, &selectFDs, (fd_set *) NULL, (fd_set *) NULL, &timeout);
+
+    // check return
+    if (fds_ready > 0) {
+      // we got connections or requests!
+
+      // first check for connections!
+      if (con_socket_fd >= 0 && FD_ISSET(con_socket_fd, &selectFDs)) {
+        fds_ready--;
+
+        // create a new instance of the fd to alarms registered mapping
+        EventClientT *new_client_con = new_event_client();
+
+        if (!new_client_con) {
+          //Debug ("TS_Control_Main", "can't create new EventClientT for new connection\n");
+        } else {
+          // accept connection
+          new_con_fd = mgmt_accept(con_socket_fd, new_client_con->adr, &addr_len);
+          new_client_con->sock_info.fd = new_con_fd;
+          new_client_con->sock_info.SSLcon = NULL;
+          ink_hash_table_insert(accepted_clients, (char *) &new_client_con->sock_info.fd, new_client_con);
+          Debug("event", "[event_callback_main] Accept new connection: fd=%d\n", new_con_fd);
+        }
+      }                         // end if (new_con_fd >= 0 && FD_ISSET(new_con_fd, &selectFDs))
+
+      // some other file descriptor; for each one, service request
+      if (fds_ready > 0) {      // RECEIVED A REQUEST from remote API client
+        // see if there are more fd to set - iterate through all entries in hash table
+        con_entry = ink_hash_table_iterator_first(accepted_clients, &con_state);
+        while (con_entry) {
+          client_entry = (EventClientT *) ink_hash_table_entry_value(accepted_clients, con_entry);
+          // got information check
+          if (client_entry->sock_info.fd && FD_ISSET(client_entry->sock_info.fd, &selectFDs)) {
+            // SERVICE REQUEST - read the op and message into a buffer
+            // clear the fields first
+            op_t = UNDEFINED_OP;
+            ret = preprocess_msg(client_entry->sock_info, (OpType *) & op_t, &req);
+            if (ret == TS_ERR_NET_READ || ret == TS_ERR_NET_EOF) {    // preprocess_msg FAILED!
+              Debug("event", "[event_callback_main] preprocess_msg FAILED; skip! \n");
+              remove_event_client(client_entry, accepted_clients);
+              con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+              continue;
+            }
+            // determine which handler function to call based on operation
+            switch (op_t) {
+
+            case EVENT_REG_CALLBACK:
+              handle_event_reg_callback(client_entry, req);
+              ats_free(req);     // free the request allocated by preprocess_msg
+              if (ret == TS_ERR_NET_WRITE || ret == TS_ERR_NET_EOF) {
+                Debug("event", "[event_callback_main] ERROR: handle_event_reg_callback\n");
+                remove_event_client(client_entry, accepted_clients);
+                con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+                continue;
+              }
+              break;
+
+            case EVENT_UNREG_CALLBACK:
+
+              handle_event_unreg_callback(client_entry, req);
+              ats_free(req);     // free the request allocated by preprocess_msg
+              if (ret == TS_ERR_NET_WRITE || ret == TS_ERR_NET_EOF) {
+                Debug("event", "[event_callback_main] ERROR: handle_event_unreg_callback\n");
+                remove_event_client(client_entry, accepted_clients);
+                con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+                continue;
+              }
+              break;
+
+            default:
+              break;
+
+            }                   // end switch (op_t)
+
+          }                     // end if(client_entry->sock_info.fd && FD_ISSET(client_entry->sock_info.fd, &selectFDs))
+
+          con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+        }                       // end while (con_entry)
+      }                         // end if (fds_ready > 0)
+
+    }                           // end if (fds_ready > 0)
+
+    // ------------ service loop is done, check for events now -------------
+    // for each event in the mgmt_events list, uses the event id to check the
+    // events_registered queue for each client connection to see if that client
+    // has a callback registered for that event_id
+
+    TSMgmtEvent *event;
+
+    if (!mgmt_events || queue_is_empty(mgmt_events)) {  //no events to process
+      //fprintf(stderr, "[event_callback_main] NO EVENTS TO PROCESS\n");
+      Debug("event", "[event_callback_main] NO EVENTS TO PROCESS\n");
+      continue;
+    }
+    // iterate through each event in mgmt_events
+    while (!queue_is_empty(mgmt_events)) {
+      ink_mutex_acquire(&mgmt_events_lock);     //acquire lock
+      event = (TSMgmtEvent *) dequeue(mgmt_events);        // get what we want
+      ink_mutex_release(&mgmt_events_lock);     // release lock
+
+      if (!event)
+        continue;
+
+      //fprintf(stderr, "[event_callback_main] have an EVENT TO PROCESS\n");
+
+      // iterate through all entries in hash table, if any
+      con_entry = ink_hash_table_iterator_first(accepted_clients, &con_state);
+      while (con_entry) {
+        client_entry = (EventClientT *) ink_hash_table_entry_value(accepted_clients, con_entry);
+        if (client_entry->events_registered[event->id]) {
+          ret = send_event_notification(client_entry->sock_info, event);
+          if (ret != TS_ERR_OKAY) {    // send_event_notification failed!
+            Debug("event", "sending even notification to fd [%d] failed.\n", client_entry->sock_info.fd);
+          }
+        }
+        // get next client connection, if any
+        con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+      }                         // end while(con_entry)
+
+      // now we can delete the event
+      //fprintf(stderr, "[event_callback_main] DELETE EVENT\n");
+      TSEventDestroy(event);
+    }                           // end while (!queue_is_empty)
+
+  }                             // end while (1)
+
+  // delete tables
+  delete_mgmt_events();
+
+  // iterate through hash table; close client socket connections and remove entry
+  con_entry = ink_hash_table_iterator_first(accepted_clients, &con_state);
+  while (con_entry) {
+    client_entry = (EventClientT *) ink_hash_table_entry_value(accepted_clients, con_entry);
+    if (client_entry->sock_info.fd >= 0) {
+      close_socket(client_entry->sock_info.fd);     // close socket
+    }
+    ink_hash_table_delete(accepted_clients, (char *) &client_entry->sock_info.fd);      // remove binding
+    delete_event_client(client_entry);  // free ClientT
+    con_entry = ink_hash_table_iterator_next(accepted_clients, &con_state);
+  }
+  // all entries should be removed and freed already
+  ink_hash_table_destroy(accepted_clients);
+
+  ink_thread_exit(NULL);
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+                             HANDLER FUNCTIONS
+ --------------------------------------------------------------------------*/
+
+/**************************************************************************
+ * handle_event_reg_callback
+ *
+ * purpose: handles request to register a callback for a specific event (or all events)
+ * input: client - the client currently reading the msg from
+ *        req    - the event_name
+ * output: TS_ERR_xx
+ * note: the req should be the event name; does not send a reply to client
+ *************************************************************************/
+TSMgmtError
+handle_event_reg_callback(EventClientT * client, char *req)
+{
+  // mark the specified alarm as "wanting to be notified" in the client's alarm_registered list
+  if (req == NULL) {            // mark all alarms
+    for (int i = 0; i < NUM_EVENTS; i++) {
+      client->events_registered[i] = true;
+    }
+  } else {
+    int id = get_event_id(req); // req == event_name
+    if (id < 0) {
+      return TS_ERR_FAIL;
+    }
+    client->events_registered[id] = true;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/**************************************************************************
+ * handle_event_unreg_callback
+ *
+ * purpose: handles request to unregister a callback for a specific event (or all events)
+ * input: client - the client currently reading the msg from
+ *        req    - the event_name
+ * output: TS_ERR_xx
+ * note: the req should be the event name; does not send reply to client
+ *************************************************************************/
+TSMgmtError
+handle_event_unreg_callback(EventClientT * client, char *req)
+{
+  // mark the specified alarm as "wanting to be notified" in the client's alarm_registered list
+  if (req == NULL) {            // mark all alarms
+    for (int i = 0; i < NUM_EVENTS; i++) {
+      client->events_registered[i] = false;
+    }
+  } else {
+    int id = get_event_id(req); // req == event_name
+    if (id < 0) {
+      return TS_ERR_FAIL;
+    }
+    client->events_registered[id] = false;
+  }
+
+  return TS_ERR_OKAY;
+}
diff --git a/mgmt/api/EventControlMain.h b/mgmt/api/EventControlMain.h
new file mode 100644
index 00000000..edd5aa7b
--- /dev/null
+++ b/mgmt/api/EventControlMain.h
@@ -0,0 +1,63 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: EventControlMain.h
+ * Purpose: Handles event callbacks only
+ * Created: 6/26/00
+ * Created by: lant
+ *
+ ***************************************************************************/
+
+#ifndef EVENT_CONTROL_MAIN_H
+#define EVENT_CONTROL_MAIN_H
+
+#include "mgmtapi.h"         //add the include path b/c included in web dir
+#include "CoreAPIShared.h"      // for NUM_EVENTS
+
+#include "WebUtils.h"           // for SocketInfo
+
+//use events_registered[event_id] as index to check if alarm is registered
+typedef struct
+{
+  SocketInfo sock_info;         // stores event socket info
+  struct sockaddr *adr;
+  bool events_registered[NUM_EVENTS];
+} EventClientT;
+
+EventClientT *new_event_client();
+void delete_event_client(EventClientT * client);
+void remove_event_client(EventClientT * client, InkHashTable * table);
+
+TSMgmtError init_mgmt_events();
+void delete_mgmt_events();
+void delete_event_queue(LLQ * q);
+
+void apiAlarmCallback(alarm_t newAlarm, char *ip, char *desc);
+void *event_callback_main(void *arg);
+
+TSMgmtError handle_event_reg_callback(EventClientT * client, char *req);
+TSMgmtError handle_event_unreg_callback(EventClientT * client, char *req);
+
+
+#endif
diff --git a/mgmt/api/EventRegistration.cc b/mgmt/api/EventRegistration.cc
new file mode 100644
index 00000000..7d97bccf
--- /dev/null
+++ b/mgmt/api/EventRegistration.cc
@@ -0,0 +1,166 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: EventRegistration.cc
+ * Purpose: This file contains functions and structures used in event
+ *          notification and callbacks for remote clients; also has the
+ *          thread that services event notification.
+ * Created: 2/15/01
+ *
+ *
+ ***************************************************************************/
+
+#include "libts.h"
+#include <stdio.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <string.h>
+
+#include "ink_thread.h"
+
+#include "MgmtSocket.h"
+
+#include "mgmtapi.h"
+#include "EventRegistration.h"
+#include "CoreAPIShared.h"
+#include "NetworkUtilsDefs.h"
+#include "NetworkUtilsRemote.h"
+#include "EventCallback.h"
+
+CallbackTable *remote_event_callbacks;
+
+/**********************************************************************
+ * event_poll_thread_main
+ *
+ * purpose: thread listens on the client's event socket connection;
+ *          only reads from the event_socket connection and
+ *          processes EVENT_NOTIFY messages; each time client
+ *          makes new event-socket connection to TM, must launch
+ *          a new event_poll_thread_main thread
+ * input:   arg - contains the socket_fd to listen on
+ * output:  NULL - if error
+ * notes:   each time the client's socket connection to TM is reset
+ *          a new thread will be launched as old one dies; there are
+ *          only two places where a new thread is created:
+ *          1) when client first connects (TSInit call)
+ *          2) client reconnects() due to a TM restart
+ * Uses blocking socket; so blocks until receives an event notification.
+ * Shouldn't need to use select since only waiting for a notification
+ * message from event_callback_main thread!
+ **********************************************************************/
+void *
+event_poll_thread_main(void *arg)
+{
+  TSMgmtError err;
+  int sock_fd;
+  TSMgmtEvent *event_notice = NULL;
+
+  sock_fd = *((int *) arg);     // should be same as event_socket_fd
+
+  // the sock_fd is going to be the one we listen for events on
+  while (1) {
+    // possible sock_fd is invalid if TM restarts and client reconnects
+    if (sock_fd < 0) {
+      break;
+    }
+
+    // read the entire message, so create TSMgmtEvent for the callback
+    event_notice = TSEventCreate();
+    err = parse_event_notification(sock_fd, event_notice);
+    if (err == TS_ERR_NET_READ || err == TS_ERR_NET_EOF) {
+      break;
+    } else if (err != TS_ERR_OKAY) {
+      TSEventDestroy(event_notice);
+      continue;                 // skip the message
+    }
+    // got event notice; spawn new thread to handle the event's callback functions
+    ink_thread_create(event_callback_thread, (void *) event_notice, 0, DEFAULT_STACK_SIZE);
+  }
+
+  if (event_notice)
+    TSEventDestroy(event_notice);
+  ink_thread_exit(NULL);
+  return NULL;
+}
+
+/**********************************************************************
+ * event_callback_thread
+ *
+ * purpose: Given an event, determines and calls the registered cb functions
+ *          in the CallbackTable for remote events
+ * input: arg - should be an TSMgmtEvent with the event info sent from TM msg
+ * output: returns when done calling all the callbacks
+ * notes: None
+ **********************************************************************/
+void *
+event_callback_thread(void *arg)
+{
+  TSMgmtEvent *event_notice;
+  EventCallbackT *event_cb;
+  int index;
+
+  event_notice = (TSMgmtEvent *) arg;
+  index = (int) event_notice->id;
+  LLQ *func_q;                  // list of callback functions need to call
+
+  func_q = create_queue();
+  if (!func_q) {
+    if (event_notice)
+      TSEventDestroy(event_notice);
+    return NULL;
+  }
+
+  // obtain lock
+  ink_mutex_acquire(&remote_event_callbacks->event_callback_lock);
+
+  TSEventSignalFunc cb;
+
+  // check if we have functions to call
+  if (remote_event_callbacks->event_callback_l[index] && (!queue_is_empty(remote_event_callbacks->event_callback_l[index]))) {
+    int queue_depth = queue_len(remote_event_callbacks->event_callback_l[index]);
+
+    for (int i = 0; i < queue_depth; i++) {
+      event_cb = (EventCallbackT *) dequeue(remote_event_callbacks->event_callback_l[index]);
+      cb = event_cb->func;
+      enqueue(remote_event_callbacks->event_callback_l[index], event_cb);
+      enqueue(func_q, (void *) cb);     // add callback function only to list
+    }
+  }
+  // release lock
+  ink_mutex_release(&remote_event_callbacks->event_callback_lock);
+
+  // execute the callback function
+  while (!queue_is_empty(func_q)) {
+    cb = (TSEventSignalFunc) dequeue(func_q);
+    (*cb) (event_notice->name, event_notice->description, event_notice->priority, NULL);
+  }
+
+  // clean up event notice
+  TSEventDestroy(event_notice);
+  delete_queue(func_q);
+
+  // all done!
+  ink_thread_exit(NULL);
+  return NULL;
+}
diff --git a/mgmt/api/EventRegistration.h b/mgmt/api/EventRegistration.h
new file mode 100644
index 00000000..fe4bb893
--- /dev/null
+++ b/mgmt/api/EventRegistration.h
@@ -0,0 +1,49 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: EventRegistration.h
+ * Purpose: This file contains sturctures intended for event notification
+ * Created: 8/8/00
+ * Created by: Stephanie Song
+ *
+ ***************************************************************************/
+
+#ifndef _EVENT_REGISTRATION_H
+#define _EVENT_REGISTRATION_H
+
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+void *event_callback_thread(void *arg);
+void *event_poll_thread_main(void *arg);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _EVENT_REGISTRATION_H */
diff --git a/mgmt/api/GenericParser.cc b/mgmt/api/GenericParser.cc
new file mode 100644
index 00000000..49ec6fca
--- /dev/null
+++ b/mgmt/api/GenericParser.cc
@@ -0,0 +1,1060 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "GenericParser.h"
+
+/***************************************************************************
+ * Token
+ *   a token is a name/value pairs of data. The data are of the type char *.
+ *   The setName and setValue are not meant for data encapsulation, but
+ *   free callers from allocating the memory.
+ ***************************************************************************/
+
+Token::Token():name(NULL), value(NULL)
+{
+}
+
+Token::~Token()
+{
+  ats_free(name);
+  ats_free(value);
+}
+
+void
+Token::setName(const char *str)
+{
+  name = (char *) strtrim(str);
+  //name = ats_strdup(str_copy); DOESN't WORK
+}
+
+//
+// need to allocate more memory than the actual str len in case
+// more characters are appended to the value
+//
+void
+Token::setValue(const char *str)
+{
+  char *str_copy = (char *) strtrim(str);
+  // Can't use ats_strdup after strtrim?
+  //  value = ats_strdup(str);
+  ink_assert(value == NULL);
+  if (str_copy) {
+    size_t len = strlen(str_copy);
+    value = (char *)ats_malloc(sizeof(char) * (BUFSIZ));
+    len = (len < BUFSIZ) ? len : BUFSIZ - 1;
+    memcpy(value, str_copy, len);
+    value[len] = '\0';
+    ats_free(str_copy);
+  }
+}
+
+void
+Token::appendValue(const char *str)
+{
+  char *str_copy = (char *) strtrim(str);
+  static bool firstTime = true;
+
+  if (value == NULL) {
+    setValue(str_copy);
+  } else {
+    if (!firstTime) {
+      ink_strlcat(value, " ", BUFSIZ);
+    }
+    ink_strlcat(value, str_copy, BUFSIZ);
+  }
+  firstTime = false;
+  ats_free(str_copy);
+}
+
+void
+Token::Print()
+{
+  ink_assert(name != NULL);
+  printf(" (%s", name);
+  if (value != NULL) {
+    printf(", %s", value);
+  }
+  printf("),");
+}
+
+/***************************************************************************
+ * TokenList
+ *   a token list is a list of token (obviously). It uses List.h to link
+ *   the tokens together. This object includes some queue and stack manlipuation
+ *   function calls in addition to the common length() and the debugging
+ *   print() member functions.
+ ***************************************************************************/
+TokenList::TokenList():length(0)
+{
+}
+
+TokenList::~TokenList()
+{
+  Token *token = NULL;
+
+  while ((token = dequeue())) {
+    delete(token);
+  }
+}
+
+void
+TokenList::Print()
+{
+  printf("\tRULE -->");
+  for (Token * token = first(); token; token = next(token)) {
+    token->Print();
+  }
+  printf("\n");
+}
+
+/***************************************************************************
+ * Rule
+ *   a rule is nothing more than just a token list. This object also
+ *   contains a very important member function -- parse(). Depending on
+ *   on the configuration file type, a specific parse function is invoked.
+ *   Since the user of "Rule" are not expected to access the member data
+ *   driectly, the get/set member functions are used for data encapsulation.
+ ***************************************************************************/
+
+Rule::Rule()
+  : tokenList(NULL),
+    m_filetype(TS_FNAME_UNDEFINED), m_filename(NULL), m_ruleStr(NULL), m_comment(NULL), m_errorHint(NULL)
+{
+}
+
+void
+Rule::setRuleStr(const char *str)
+{
+  ink_assert(m_comment == NULL);
+  m_ruleStr = ats_strdup(str);
+}
+
+void
+Rule::setComment(const char *str)
+{
+  ink_assert(m_comment == NULL);
+  m_comment = ats_strdup(str);
+}
+
+void
+Rule::setErrorHint(const char *str)
+{
+  ink_assert(m_errorHint == NULL);
+  m_errorHint = ats_strdup(str);
+}
+
+Rule::~Rule()
+{
+  delete tokenList;
+  ats_free(m_comment);
+  ats_free(m_errorHint);
+  ats_free(m_ruleStr);
+  ats_free(m_filename);
+}
+
+void
+Rule::Print()
+{
+  if (tokenList) {
+    tokenList->Print();
+  }
+  if (m_errorHint) {
+    printf("\treason: %s\n", m_errorHint);
+  }
+}
+
+TokenList *
+Rule::parse(const char *const_rule, TSFileNameT filetype)
+{
+  char *rule = (char *) const_rule;
+  m_filetype = filetype;
+
+  switch (m_filetype) {
+  case TS_FNAME_CACHE_OBJ:    /* cache.config */
+    return cacheParse(rule);
+  case TS_FNAME_CONGESTION:   /* congestion.config */
+    return congestionParse(rule, 1, 15);
+  case TS_FNAME_HOSTING:      /* hosting.config */
+    return hostingParse(rule);
+  case TS_FNAME_ICP_PEER:     /* icp.config */
+    return icpParse(rule, 8, 8);
+  case TS_FNAME_IP_ALLOW:     /* ip_allow.config */
+    return ip_allowParse(rule);
+  case TS_FNAME_LOGS_XML:     /* logs_xml.config */
+    return logs_xmlParse(rule);
+  case TS_FNAME_PARENT_PROXY: /* parent.config */
+    return parentParse(rule);
+  case TS_FNAME_VOLUME:    /* volume.config */
+    return volumeParse(rule);
+  case TS_FNAME_PLUGIN:       /* plugin.config */
+    return pluginParse(rule);
+  case TS_FNAME_REMAP:        /* remap.config */
+    return remapParse(rule);
+  case TS_FNAME_SOCKS:        /* socks.config */
+    return socksParse(rule);
+  case TS_FNAME_SPLIT_DNS:    /* splitdns.config */
+    return splitdnsParse(rule);
+  case TS_FNAME_STORAGE:      /* storage.config */
+    return storageParse(rule);
+  case TS_FNAME_UPDATE_URL:   /* update.config */
+    return updateParse(rule);
+  case TS_FNAME_VADDRS:       /* vaddrs.config */
+    return vaddrsParse(rule);
+  default:
+    return NULL;
+  }
+}
+
+
+/**
+ * arm_securityParse
+ **/
+TokenList *
+Rule::arm_securityParse(char *rule)
+{
+  Tokenizer ruleTok(" \t");
+  ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token = (Token *) NULL;
+  TokenList *m_tokenList = new TokenList();
+
+  // ASSUMPTIONS:
+  //   every token starts with a non-digit character is a "name"
+  //   every token starts with a digit is a "value" or part of a "value"
+  //   NO SPACE for port/ip range
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+
+    // If 1st element is non-digit, it is a value
+    if (!ParseRules::is_digit(tokenStr[0])) {
+
+      // it is a name
+      if (token != (Token *) NULL) {
+        // We have a token that hasn't been enqueue, enqueue it
+        m_tokenList->enqueue(token);
+      }
+
+      token = new Token(); // Create a new token
+      token->setName(tokenStr); // Set token Name
+    } else if (token != (Token *) NULL) {
+      // it is a value or part of a value
+      token->appendValue(tokenStr);     // ISA port# or IP; append to value
+    }
+  }
+
+  if (token != (Token *) NULL) {        // Enqueue the last token -- we haven't done it yet.
+    m_tokenList->enqueue(token);
+  }
+
+  return m_tokenList;
+}
+
+
+/**
+ * cacheParse
+ * CAUTION: This function is used for number of similar formatted
+ *          configureation file parsing. Modification to this function
+ *          will manifest changes to other parsing function.
+ **/
+TokenList *
+Rule::cacheParse(char *rule, unsigned short minNumToken, unsigned short maxNumToken)
+{
+  Tokenizer ruleTok(" \t");
+  int numRuleTok = ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token = NULL;
+  bool insideQuote = false;
+  const char *newStr;
+
+  // Sanity Check -- number of token
+  if (numRuleTok < minNumToken) {
+    setErrorHint("Expecting more space delimited tokens!");
+    return NULL;
+  }
+  if (numRuleTok > maxNumToken) {
+    setErrorHint("Expecting less space delimited tokens!");
+    return NULL;
+  }
+  // Sanity Check -- no space before or after '='
+  if (strstr(rule, " =")) {
+    setErrorHint("Expected space before '='");
+    return NULL;
+  }
+  if (strstr(rule, "= ")) {
+    setErrorHint("Expected space after '='");
+    return NULL;
+  }
+
+  TokenList *m_tokenList = new TokenList();
+
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+
+    if (!insideQuote) {
+      Tokenizer subruleTok("=");
+      int numSubRuleTok = subruleTok.Initialize(tokenStr);
+      tok_iter_state subruleTok_state;
+      const char *subtoken = subruleTok.iterFirst(&subruleTok_state);
+
+      // Every token must have a '=' sign
+      if (numSubRuleTok < 2) {
+        setErrorHint("'=' is expected in space-delimited token");
+        return NULL;
+      }
+
+      token = new Token();
+      /* set the name */
+      token->setName(subtoken);
+
+      /* set the value */
+      if (numSubRuleTok == 2) {
+        subtoken = subruleTok.iterNext(&subruleTok_state);
+      } else {
+        /* Ignore the first "=" sign and treat the rest as one token
+           for TSqa09488 */
+        const char *secondEqual = strstr(strstr(tokenStr, "="), "=");
+        secondEqual++;
+        subtoken = ats_strdup(secondEqual);
+      }
+      insideQuote = inQuote(subtoken);
+
+      newStr = strtrim(subtoken, '\"');
+      if (!insideQuote) {
+        //          printf("!insideQuote: %s\n", subtoken);
+        token->setValue(newStr);
+        m_tokenList->enqueue(token);
+      } else {
+        //          printf("insideQuote: %s\n", subtoken);
+        //          printf("%s 1\n", subtoken);
+        token->appendValue(newStr);
+      }
+      ats_free((void*)newStr);
+
+    } else {
+      //      printf("%s 2\n", tokenStr);
+      newStr = strtrim(tokenStr, '\"');
+      token->appendValue(newStr);
+      ats_free((void*)newStr);
+      insideQuote = inQuote(tokenStr);
+      if (insideQuote) {
+        //              printf("enqueue\n");
+        m_tokenList->enqueue(token);
+        insideQuote = false;
+      } else {
+        insideQuote = true;
+      }
+    }
+  }
+  return m_tokenList;
+}
+
+
+
+/**
+ * congestionParse
+ **/
+TokenList *
+Rule::congestionParse(char *rule, unsigned short minNumToken, unsigned short maxNumToken)
+{
+  return cacheParse(rule, minNumToken, maxNumToken);
+}
+
+/**
+ * hostingParse
+ **/
+TokenList *
+Rule::hostingParse(char *rule)
+{
+  // ASSUMPTIONS:
+  //   NO SPACE around "=" sign
+  //   NO SPACE around ","
+  return cacheParse(rule, 2, 2);
+}
+
+
+/**
+ * icpParse
+ *   - mimic proxy/ICPConfig/icp_config_change_callback
+ **/
+TokenList *
+Rule::icpParse(char *rule, unsigned short minNumToken, unsigned short maxNumToken)
+{
+  Tokenizer ruleTok(":");
+  int numRuleTok = ruleTok.Initialize(rule, ALLOW_EMPTY_TOKS);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token;
+  TokenList *m_tokenList = new TokenList();
+
+  // Sanity Check -- number of token
+  if (numRuleTok < minNumToken) {
+    setErrorHint("Expecting more ':' delimited tokens!");
+    return NULL;
+  }
+  if (numRuleTok > maxNumToken + 1 ||
+      (numRuleTok == maxNumToken + 1 && strspn(ruleTok[maxNumToken], " ") != strlen(ruleTok[maxNumToken]))) {
+    setErrorHint("Expecting less ':' delimited tokens!");
+    return NULL;
+  }
+
+
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+    token = new Token();
+    token->setName(tokenStr);
+    m_tokenList->enqueue(token);
+  }
+
+  return m_tokenList;
+}
+
+
+/**
+ * ip_allowParse
+ **/
+TokenList *
+Rule::ip_allowParse(char *rule)
+{
+  // ASSUMPTIONS:
+  //   NO SPACE around "=" sign
+  //   NO SPACE around "-"
+  return cacheParse(rule, 2, 2);
+}
+
+
+/**
+ * logsParse
+ **/
+TokenList *
+Rule::logsParse(char * /* rule ATS_UNUSED */)
+{
+  return NULL;
+}
+
+
+/**
+ * log_hostsParse
+ **/
+TokenList *
+Rule::log_hostsParse(char *rule)
+{
+  if (strstr(rule, " ")) {
+    return NULL;
+  }
+
+  Token *token = new Token();
+  TokenList *m_tokenList = new TokenList();
+  token->setName(rule);
+  m_tokenList->enqueue(token);
+
+  return m_tokenList;
+}
+
+
+/**
+ * logs_xmlParse
+ **/
+TokenList *
+Rule::logs_xmlParse(char * /* rule ATS_UNUSED */)
+{
+  return NULL;
+}
+
+
+/**
+ * parentParse
+ **/
+TokenList *
+Rule::parentParse(char *rule)
+{
+  return cacheParse(rule, 2);
+}
+
+
+/**
+ * volumeParse
+ **/
+TokenList *
+Rule::volumeParse(char *rule)
+{
+  return cacheParse(rule, 3, 3);
+}
+
+
+/**
+ * pluginParse
+ **/
+TokenList *
+Rule::pluginParse(char *rule)
+{
+  Tokenizer ruleTok(" \t");
+  ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token;
+  TokenList *m_tokenList = new TokenList();
+
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+    token = new Token();
+    token->setName(tokenStr);
+    m_tokenList->enqueue(token);
+  }
+
+  return m_tokenList;
+}
+
+
+/**
+ * remapParse
+ **/
+TokenList *
+Rule::remapParse(char *rule)
+{
+  Tokenizer ruleTok(" \t");
+  int numRuleTok = ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+
+  if ((numRuleTok != 3) && (numRuleTok != 4)) {
+    setErrorHint("Expecting exactly 4 space delimited tokens");
+    return NULL;
+  }
+
+  Token *token;
+  TokenList *m_tokenList = new TokenList();
+
+  token = new Token();
+  token->setName(tokenStr);
+  m_tokenList->enqueue(token);
+  tokenStr = ruleTok.iterNext(&ruleTok_state);
+
+  token = new Token();
+  token->setName(tokenStr);
+  tokenStr = ruleTok.iterNext(&ruleTok_state);
+  token->setValue(tokenStr);
+  m_tokenList->enqueue(token);
+
+  // Just to make sure that there are no left overs
+  tokenStr = ruleTok.iterNext(&ruleTok_state);
+  if (tokenStr) {
+    token = new Token();
+    token->setName(tokenStr);
+    m_tokenList->enqueue(token);
+    ruleTok.iterNext(&ruleTok_state);
+  }
+  return m_tokenList;
+}
+
+
+/**
+ * socksParse
+ **/
+TokenList *
+Rule::socksParse(char *rule)
+{
+  Tokenizer ruleTok(" \t");
+  int numRuleTok = ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token = NULL;
+  bool insideQuote = false;
+  const char *newStr;
+
+
+  if (numRuleTok < 2) {
+    setErrorHint("Expecting at least 2 space delimited tokens");
+    return NULL;
+  }
+
+  TokenList *m_tokenList = new TokenList();
+
+  /* check which rule type it is */
+  if (strcmp(tokenStr, "no_socks") == 0) {      /* TS_SOCKS_BYPASS rule type */
+    /* the token name = "no socks", the value = "list of ip addresses" */
+    token = new Token();
+    token->setName(tokenStr);
+
+    for (; (tokenStr = ruleTok.iterNext(&ruleTok_state));) {
+      token->appendValue(tokenStr);
+    }
+    m_tokenList->enqueue(token);
+  } else if (strcmp(tokenStr, "auth") == 0) {   /* TS_SOCKS_AUTH rule type */
+    /* first token:  name = "auth", value = "u"
+       second token: name = <username>
+       third token:  name = <password> */
+    token = new Token();
+    token->setName(tokenStr);
+    tokenStr = ruleTok.iterNext(&ruleTok_state);
+    token->setValue(tokenStr);  /* should be "u" authoriziation type */
+    m_tokenList->enqueue(token);
+
+    /* create tokens for username and password */
+    for (; (tokenStr = ruleTok.iterNext(&ruleTok_state));) {
+      token = new Token();
+      token->setName(tokenStr);
+      m_tokenList->enqueue(token);
+    }
+
+  } else {                      /* TS_SOCKS_MULTIPLE rule type */
+    for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+      /* token is a name-value pair separated with = sign */
+      if (!insideQuote) {
+        Tokenizer subruleTok("=");
+        int numSubRuleTok = subruleTok.Initialize(tokenStr);
+        tok_iter_state subruleTok_state;
+        const char *subtoken = subruleTok.iterFirst(&subruleTok_state);
+
+        // Every token must have a '=' sign
+        if (numSubRuleTok < 2) {
+          setErrorHint("'=' is expected in space-delimited token");
+          return NULL;
+        }
+
+        token = new Token();
+        /* set the name */
+        token->setName(subtoken);
+
+        /* set the value */
+        if (numSubRuleTok == 2) {
+          subtoken = subruleTok.iterNext(&subruleTok_state);
+        } else {
+          /* Ignore the first "=" sign and treat the rest as one token
+             for TSqa09488 */
+          const char *secondEqual = strstr(strstr(tokenStr, "="), "=");
+          secondEqual++;
+          subtoken = ats_strdup(secondEqual);
+        }
+        insideQuote = inQuote(subtoken);
+
+        newStr = strtrim(subtoken, '\"');
+        if (!insideQuote) {
+          //          printf("!insideQuote: %s\n", subtoken);
+          token->setValue(newStr);
+          m_tokenList->enqueue(token);
+        } else {
+          //          printf("insideQuote: %s\n", subtoken);
+          //          printf("%s 1\n", subtoken);
+          token->appendValue(newStr);
+        }
+        ats_free((void*)newStr);
+
+      } else {
+        //      printf("%s 2\n", tokenStr);
+        newStr = strtrim(tokenStr, '\"');
+        token->appendValue(newStr);
+        ats_free((void*)newStr);
+        insideQuote = inQuote(tokenStr);
+        if (insideQuote) {
+          //              printf("enqueue\n");
+          m_tokenList->enqueue(token);
+          insideQuote = false;
+        } else {
+          insideQuote = true;
+        }
+      }
+    }                           /* end for loop */
+
+  }
+
+  return m_tokenList;
+}
+
+
+/**
+ * splitdnsParse
+ **/
+TokenList *
+Rule::splitdnsParse(char *rule)
+{
+  Tokenizer ruleTok(" \t");
+  int numRuleTok = ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token = NULL;
+  bool insideQuote = false;
+  const char *newStr;
+
+  // Sanity Check -- number of token
+  if (numRuleTok < 0) {
+    setErrorHint("Expecting more space delimited tokens!");
+    return NULL;
+  }
+  if (numRuleTok > 10) {
+    setErrorHint("Expecting less space delimited tokens!");
+    return NULL;
+  }
+  // Sanity Check -- no space before or after '='
+  if (strstr(rule, " =")) {
+    setErrorHint("Expected space before '='");
+    return NULL;
+  }
+  if (strstr(rule, "= ")) {
+    setErrorHint("Expected space after '='");
+    return NULL;
+  }
+
+  TokenList *m_tokenList = new TokenList();
+
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+
+    if (!insideQuote) {
+      Tokenizer subruleTok("=");
+      int numSubRuleTok = subruleTok.Initialize(tokenStr);
+      tok_iter_state subruleTok_state;
+      const char *subtoken = subruleTok.iterFirst(&subruleTok_state);
+
+      // Every token must have a '=' sign
+      if (numSubRuleTok < 2) {
+        setErrorHint("'=' is expected in space-delimited token");
+        return NULL;
+      }
+
+      token = new Token();
+      token->setName(subtoken);
+      subtoken = subruleTok.iterNext(&subruleTok_state);
+
+      insideQuote = inQuote(subtoken);
+
+      newStr = strtrim(subtoken, '\"');
+      if (!insideQuote) {
+        token->setValue(newStr);
+        m_tokenList->enqueue(token);
+      } else {
+        //          printf("%s 1\n", subtoken);
+        token->appendValue(newStr);
+      }
+      ats_free((void*)newStr);
+
+    } else {
+      //            printf("%s 2\n", tokenStr);
+      newStr = strtrim(tokenStr, '\"');
+      token->appendValue(newStr);
+      ats_free((void*)newStr);
+      insideQuote = inQuote(tokenStr);
+      if (insideQuote) {
+        //              printf("enqueue\n");
+        m_tokenList->enqueue(token);
+        insideQuote = false;
+      } else {
+        insideQuote = true;
+      }
+    }
+  }
+
+  return m_tokenList;
+  //  return cacheParse(rule, 2);
+}
+
+
+/**
+ * updateParse
+ **/
+TokenList *
+Rule::updateParse(char *rule)
+{
+  Tokenizer ruleTok("\\");
+  int numRuleTok = ruleTok.Initialize(rule, ALLOW_EMPTY_TOKS);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+
+  // NOTE: ignore white spaces before/after the '\'
+  // There should only be 5 tokens; if there are 6 tokens, the
+  // sixth token must be all white spaces
+  if (numRuleTok<5 || numRuleTok> 6 || (numRuleTok == 6 && strspn(ruleTok[5], " ") != strlen(ruleTok[5]))) {
+    setErrorHint("Expecting exactly 5 '\' delimited tokens");
+    return NULL;
+  }
+
+  Token *token;
+  TokenList *m_tokenList = new TokenList();
+
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+    token = new Token();
+    token->setName(tokenStr);
+    m_tokenList->enqueue(token);
+  }
+
+  return m_tokenList;
+}
+
+
+/**
+ * vaddrsParse
+ **/
+TokenList *
+Rule::vaddrsParse(char *rule)
+{
+  // ASSUMPTIONS:
+  //   UNIX: IP_address device subinterface
+  //   Win:  IP_address interface
+  Tokenizer ruleTok(" \t");
+  ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+  Token *token;
+  TokenList *m_tokenList = new TokenList();
+
+  for (; tokenStr; tokenStr = ruleTok.iterNext(&ruleTok_state)) {
+    token = new Token();
+    token->setName(tokenStr);
+    m_tokenList->enqueue(token);
+  }
+
+  return m_tokenList;
+}
+
+
+/**
+ * storageParse
+ * ------------
+ * the token value is pathname; if a size is specified, that is stored as
+ * the token's value
+ **/
+TokenList *
+Rule::storageParse(char *rule)
+{
+  Tokenizer ruleTok(" \t");
+  int numRuleTok = ruleTok.Initialize(rule);
+  tok_iter_state ruleTok_state;
+  const char *tokenStr = ruleTok.iterFirst(&ruleTok_state);
+
+  if ((numRuleTok != 1) && (numRuleTok != 2)) {
+    setErrorHint("Expecting one or two tokens");
+    return NULL;
+  }
+
+  Token *token;
+  TokenList *m_tokenList = new TokenList();
+
+  // at least one token, anyways
+  token = new Token();
+  token->setName(tokenStr);
+  if (numRuleTok > 1) {         // numRulTok == 2
+    tokenStr = ruleTok.iterNext(&ruleTok_state);
+    token->setValue(tokenStr);
+  }
+  m_tokenList->enqueue(token);
+
+  return m_tokenList;
+}
+
+
+/*
+ * bool Rule::inQuote(char *str)
+ *   Counts the number of quote found in "str"
+ *   RETURN true  if "str" contains odd  number of quotes (")
+ *          false if "str" contains even number of quotes (including zero)
+ */
+bool Rule::inQuote(const char *str)
+{
+  unsigned
+    numQuote = 0;
+  for (const char *ptr = str; *ptr != '\0'; ptr++) {
+    if (*ptr == '\"') {
+      numQuote++;
+    }
+  }
+  return (numQuote & 1);
+}
+
+
+/***************************************************************************
+ * RuleList
+ *   a rule list is a list of rule; which compose to a configuration file.
+ *   Again some queue and stack manlipation member functions are included.
+ *   The important function is this object is also parse() which breaks up
+ *   the file into individual lines and passes on to the Rule object to
+ *   continue parsing each rule.
+ *   NOTE: a rule that spans more than one line would be a problem in here.
+ ***************************************************************************/
+RuleList::RuleList()
+ : length(0), m_filename(NULL)
+{
+  m_filetype = TS_FNAME_UNDEFINED;
+}
+
+RuleList::~RuleList()
+{
+  ats_free(m_filename);
+
+  Rule *rule = NULL;
+  while ((rule = dequeue())) {
+    delete rule;
+  }
+}
+
+void
+RuleList::Print()
+{
+  printf("RULELIST-->\n");
+  for (Rule * rule = first(); rule; rule = next(rule)) {
+    rule->Print();
+  }
+  printf("length: %u\n", length);
+}
+
+/*
+ * void RuleList::parse(char *fileBuf, const char *filename)
+ *   Takes configuration file buffer, tokenize the buffer according carriage
+ *   return. For each line, pasre it.
+ *
+ */
+void
+RuleList::parse(char *fileBuf, const char *filename)
+{
+  m_filename = ats_strdup(filename);
+
+  if (strstr(filename, "cache.config")) {
+    m_filetype = TS_FNAME_CACHE_OBJ;   /* cache.config */
+  } else if (strstr(filename, "congestion.config")) {
+    m_filetype = TS_FNAME_CONGESTION;  /* congestion.config */
+  } else if (strstr(filename, "hosting.config")) {
+    m_filetype = TS_FNAME_HOSTING;     /* hosting.config */
+  } else if (strstr(filename, "icp.config")) {
+    m_filetype = TS_FNAME_ICP_PEER;    /* icp.config */
+  } else if (strstr(filename, "ip_allow.config")) {
+    m_filetype = TS_FNAME_IP_ALLOW;    /* ip_allow.config */
+  } else if (strstr(filename, "logs_xml.config")) {
+    m_filetype = TS_FNAME_LOGS_XML;    /* logs_xml.config */
+  } else if (strstr(filename, "parent.config")) {
+    m_filetype = TS_FNAME_PARENT_PROXY;        /* parent.config */
+  } else if (strstr(filename, "volume.config")) {
+    m_filetype = TS_FNAME_VOLUME;   /* volume.config */
+  } else if (strstr(filename, "plugin.config")) {
+    m_filetype = TS_FNAME_PLUGIN;      /* plugin.config */
+  } else if (strstr(filename, "remap.config")) {
+    m_filetype = TS_FNAME_REMAP;       /* remap.config */
+  } else if (strstr(filename, "socks.config")) {
+    m_filetype = TS_FNAME_SOCKS;       /* socks.config */
+  } else if (strstr(filename, "splitdns.config")) {
+    m_filetype = TS_FNAME_SPLIT_DNS;   /* splitdns.config */
+  } else if (strstr(filename, "update.config")) {
+    m_filetype = TS_FNAME_UPDATE_URL;  /* update.config */
+  } else if (strstr(filename, "vaddrs.config")) {
+    m_filetype = TS_FNAME_VADDRS;      /* vaddrs.config */
+  } else if (strstr(filename, "plugin.config")) {
+    m_filetype = TS_FNAME_UNDEFINED;   /* plugin.config */
+  } else if (strstr(filename, "storage.config")) {
+    m_filetype = TS_FNAME_STORAGE;     /* storage.config */
+  }
+  else {
+    m_filetype = TS_FNAME_UNDEFINED;
+  }
+
+  // Call the proper function
+  this->parse(fileBuf, m_filetype);
+}
+
+/*
+ * void RuleList::parse(char *fileBuf, TSFileNameT filetype)
+ *   Takes configuration file buffer, tokenize the buffer according carriage
+ *   return. For each line, pasre it.
+ *   NOTE: (1) comment line must start with '#' as the first character without
+ *             leading spaces
+ *         (2) a line must
+ *
+ */
+void
+RuleList::parse(char *fileBuf, TSFileNameT filetype)
+{
+  Tokenizer lineTok("\n");
+  tok_iter_state lineTok_state;
+  const char *line;
+
+  if (filetype == TS_FNAME_LOGS_XML) {
+    printf("Yes Yes! XML!\n");
+    //      InkXmlConfigFile(NULL);
+    return;
+  }
+
+  lineTok.Initialize(fileBuf);
+  line = lineTok.iterFirst(&lineTok_state);
+  while (line) {
+    Rule *rule = new Rule();
+
+    if (line[0] == '#') {       // is this comment
+      rule->setComment(line);
+    } else {
+      TokenList *m_tokenList = rule->parse(line, filetype);
+      if (m_tokenList) {
+        rule->setRuleStr(line);
+        rule->tokenList = m_tokenList;
+      } else {
+        //rule->setComment("## WARNING: The following configuration rule is invalid!");
+        size_t error_rule_size = sizeof(char) * (strlen(line) + strlen("#ERROR: ") + 1);
+        char *error_rule = (char *)ats_malloc(error_rule_size);
+
+        snprintf(error_rule, error_rule_size, "#ERROR: %s", line);
+        rule->setComment(error_rule);
+        ats_free(error_rule);
+      }
+    }
+
+    //rule->Print();
+    this->enqueue(rule);
+
+    // Get next line
+    line = lineTok.iterNext(&lineTok_state);
+  }
+  //this->Print();
+}
+
+
+/***************************************************************************
+ * General Routines
+ ***************************************************************************/
+// Concatenate two strings together and return the resulting string
+
+/*
+char *
+strtrim(char *str) {
+  while(isspace(*str)) {
+	str++;
+  }
+  while(isspace(str[strlen(str)-1])) {
+	str[strlen(str)-1] = '\0';
+  }
+  return str;
+}
+*/
+
+//
+// This function ALLOCATES MEMORY FOR A NEW STRING!!
+//
+const char *
+strtrim(const char *str_in, char chr)
+{
+  char *str = ats_strdup(str_in);
+
+  char *str_ptr = str;          // so we can free str later if it changes
+  while (*str == chr) {
+    str++;
+  }
+  while (str[strlen(str) - 1] == chr) {
+    str[strlen(str) - 1] = '\0';
+  }
+
+  char *newStr = ats_strdup(str);
+  ats_free(str_ptr);
+  return newStr;
+}
diff --git a/mgmt/api/GenericParser.h b/mgmt/api/GenericParser.h
new file mode 100644
index 00000000..baa5e9ec
--- /dev/null
+++ b/mgmt/api/GenericParser.h
@@ -0,0 +1,304 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ GenericParser.h
+
+
+ ***************************************************************************/
+#ifndef _STATTYPE_H_
+#define	_STATTYPE_H_
+
+#include <string.h>
+#include "ink_assert.h"
+#include "Tokenizer.h"
+#include "List.h"
+#include "mgmtapi.h"         // INKFileNameT
+
+
+#define MIN_CONFIG_TOKEN       1
+#define MAX_CONFIG_TOKEN       30
+
+/***************************************************************************
+ * Token
+ *   a token is a name/value pairs of data. The data are of the type char *.
+ *   The setName and setValue are not meant for data encapsulation, but
+ *   free callers from allocating the memory.
+ ***************************************************************************/
+class Token
+{
+public:
+  Token();
+  Token(char *);
+   ~Token();
+  void setName(const char *);
+  void setValue(const char *);
+  void appendValue(const char *);
+  void Print();
+
+  char *name;
+  char *value;
+  LINK(Token, link);
+};
+
+/***************************************************************************
+ * TokenList
+ *   a token list is a list of token (obviously). It uses List.h to link
+ *   the tokens together. This object includes some queue and stack manlipuation
+ *   function calls in addition to the common length() and the debugging
+ *   print() member functions.
+ ***************************************************************************/
+class TokenList
+{
+public:
+  TokenList();
+  ~TokenList();
+
+  unsigned length;
+
+  /**
+   * Queue method
+   */
+  inline Token *first()
+  {
+    return m_nameList.head;
+  };
+  inline Token *last()
+  {
+    return m_nameList.tail;
+  };
+  inline void enqueue(Token * entry)
+  {
+    length++;
+    m_nameList.enqueue(entry);
+  };
+  inline Token *dequeue()
+  {
+    length--;
+    return (Token *) m_nameList.dequeue();
+  };
+  inline void remove(Token * entry)
+  {
+    length--;
+    m_nameList.remove(entry);
+  };
+  /**
+   * Stack method
+   */
+  inline Token *top()
+  {
+    return m_nameList.tail;
+  };
+  inline Token *bottom()
+  {
+    return m_nameList.head;
+  };
+  inline void push(Token * entry)
+  {
+    length++;
+    m_nameList.push(entry);
+  };
+  inline Token *pop()
+  {
+    length--;
+    return m_nameList.pop();
+  };
+  /**
+   * General method
+   */
+  inline void insert(Token * newNode, Token * current)
+  {
+    m_nameList.insert(newNode, current);
+  };
+  inline Token *next(Token * current)
+  {
+    return (current->link).next;
+  };
+
+  void Print();                 /* debugging use only */
+
+private:
+  Queue<Token> m_nameList;
+};
+
+
+/***************************************************************************
+ * Rule
+ *   a rule is nothing more than just a token list. This object also
+ *   contains a very important member function -- parse(). Depending on
+ *   on the configuration file type, a specific parse function is invoked.
+ *   Since the user of "Rule" are not expected to access the member data
+ *   driectly, the get/set member functions are used for data encapsulation.
+ ***************************************************************************/
+class Rule
+{
+public:
+  TokenList * tokenList;
+
+  inline TSFileNameT getFiletype()
+  {
+    return m_filetype;
+  };
+  void setRuleStr(const char *);
+  inline char *getRuleStr()
+  {
+    return m_ruleStr;
+  };
+  void setComment(const char *);
+  inline char *getComment()
+  {
+    return m_comment;
+  };
+  void setErrorHint(const char *);
+  inline char *getErrorHint()
+  {
+    return m_errorHint;
+  };
+
+  Rule();
+  ~Rule();
+  void Print();
+  TokenList *parse(const char *buf, TSFileNameT filetype);
+
+  LINK(Rule, link);
+private:
+
+  TSFileNameT m_filetype;
+  char *m_filename;
+  char *m_ruleStr;
+  char *m_comment;
+  char *m_errorHint;
+
+  TokenList *cacheParse(char *rule, unsigned short minNumToken = MIN_CONFIG_TOKEN, unsigned short maxNumToken = MAX_CONFIG_TOKEN);
+  TokenList *congestionParse(char *rule, unsigned short minNumToken = MIN_CONFIG_TOKEN, unsigned short maxNumToken = MAX_CONFIG_TOKEN);
+  TokenList *icpParse(char *rule, unsigned short minNumToken = MIN_CONFIG_TOKEN, unsigned short maxNumToken = MAX_CONFIG_TOKEN);
+  TokenList *parentParse(char *rule);
+  TokenList *remapParse(char *rule);
+  TokenList *socksParse(char *rule);
+  TokenList *splitdnsParse(char *rule);
+  TokenList *updateParse(char *rule);
+  TokenList *vaddrsParse(char *rule);
+  TokenList *arm_securityParse(char *rule);
+  TokenList *hostingParse(char *rule);
+  TokenList *ip_allowParse(char *rule);
+  TokenList *logs_xmlParse(char *rule);
+  TokenList *volumeParse(char *rule);
+  TokenList *logsParse(char *rule);
+  TokenList *pluginParse(char *rule);
+  TokenList *storageParse(char *rule);
+  TokenList *log_hostsParse(char *rule);
+  bool inQuote(const char *str);
+};
+
+/***************************************************************************
+ * RuleList
+ *   a rule list is a list of rule; which compose to a configuration file.
+ *   Again some queue and stack manlipation member functions are included.
+ *   The important function is this object is also parse() which breaks up
+ *   the file into individual lines and passes on to the Rule object to
+ *   continue parsing each rule.
+ *   NOTE: a rule that spans more than one line would be a problem in here.
+ ***************************************************************************/
+class RuleList
+{
+
+public:
+
+  RuleList();
+  ~RuleList();
+
+  unsigned length;
+
+  /**
+   * Queue method
+   */
+  inline Rule *first()
+  {
+    return m_lineList.head;
+  }
+  inline Rule *last()
+  {
+    return m_lineList.tail;
+  }
+  inline void enqueue(Rule * entry)
+  {
+    if (!entry->getComment()) {
+      length++;
+    }
+    m_lineList.enqueue(entry);
+  }
+  inline Rule *dequeue()
+  {
+    length--;
+    return (Rule *) m_lineList.dequeue();
+  }
+  /**
+   * Stack method
+   */
+  inline Rule *top()
+  {
+    return m_lineList.tail;
+  }
+  inline Rule *bottom()
+  {
+    return m_lineList.head;
+  }
+  inline void push(Rule * entry)
+  {
+    if (!entry->getComment()) {
+      length++;
+    }
+    m_lineList.push(entry);
+  }
+  inline Rule *pop()
+  {
+    length--;
+    return m_lineList.pop();
+  }
+  /**
+   * General method
+   */
+  inline Rule *next(Rule * current)
+  {
+    return (current->link).next;
+  }
+  inline void insert(Rule * newNode, Rule * current)
+  {
+    m_lineList.insert(newNode, current);
+  }
+  void Print();                 /* debugging use only */
+  void parse(char *buf, TSFileNameT filetype);
+  void parse(char *buf, const char *filename);
+
+private:
+  TSFileNameT m_filetype;
+  char *m_filename;
+  Queue<Rule> m_lineList;
+};
+
+/*****************************************************************************************
+ * General Routines
+ *****************************************************************************************/
+//char *strtrim(char *);
+const char *strtrim(const char *, char chr = ' ');
+#endif
diff --git a/mgmt/api/INKMgmtAPI.cc b/mgmt/api/INKMgmtAPI.cc
new file mode 100644
index 00000000..c436652e
--- /dev/null
+++ b/mgmt/api/INKMgmtAPI.cc
@@ -0,0 +1,2483 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: InkMgmtAPI.cc
+ * Purpose: This file implements all traffic server management functions.
+ * Created: 9/11/00
+ * Created by: Lan Tran
+ *
+ *
+ ***************************************************************************/
+#include "libts.h"
+#include <limits.h>
+#include "I_Layout.h"
+
+#include "mgmtapi.h"
+#include "CfgContextManager.h"
+#include "CfgContextImpl.h"
+#include "CfgContextUtils.h"
+#include "CoreAPI.h"
+#include "CoreAPIShared.h"
+
+#include "TextBuffer.h"
+
+// forward declarations
+void init_pdss_format(TSPdSsFormat * info);
+
+
+/***************************************************************************
+ * API Memory Management
+ ***************************************************************************/
+void *
+_TSmalloc(unsigned int size, const char * /* path ATS_UNUSED */ )
+{
+  return ats_malloc(size);
+}
+
+void *
+_TSrealloc(void *ptr, unsigned int size, const char * /* path ATS_UNUSED */)
+{
+  return ats_realloc(ptr, size);
+}
+
+char *
+_TSstrdup(const char *str, int length, const char * /* path ATS_UNUSED */)
+{
+  return ats_strndup(str, length);
+}
+
+void
+_TSfree(void *ptr)
+{
+  ats_free(ptr);
+}
+
+
+/***************************************************************************
+ * API Helper Functions for Data Carrier Structures
+ ***************************************************************************/
+
+/*--- TSList operations -------------------------------------------------*/
+tsapi TSList
+TSListCreate(void)
+{
+  return (void *) create_queue();
+}
+
+/* NOTE: The List must be EMPTY */
+tsapi void
+TSListDestroy(TSList l)
+{
+  if (!l)
+    return;
+
+  delete_queue((LLQ *) l);
+  return;
+}
+
+tsapi TSMgmtError
+TSListEnqueue(TSList l, void *data)
+{
+  int ret;
+
+  ink_assert(l && data);
+  if (!l || !data)
+    return TS_ERR_PARAMS;
+
+  ret = enqueue((LLQ *) l, data);       /* returns TRUE=1 or FALSE=0 */
+  if (ret == 0) {
+    return TS_ERR_FAIL;
+  } else {
+    return TS_ERR_OKAY;
+  }
+}
+
+tsapi void *
+TSListDequeue(TSList l)
+{
+  ink_assert(l);
+  if (!l || queue_is_empty((LLQ *) l))
+    return NULL;
+
+  return dequeue((LLQ *) l);
+}
+
+tsapi bool
+TSListIsEmpty(TSList l)
+{
+  int ret;
+
+  ink_assert(l);
+  if (!l)
+    return true;                // list doesn't exist, so it's empty
+
+  ret = queue_is_empty((LLQ *) l);      /* returns 0 if empty, non-zero if not empty */
+  if (ret == 0) {               /* empty */
+    return true;
+  } else {
+    return false;
+  }
+}
+
+tsapi int
+TSListLen(TSList l)
+{
+  ink_assert(l);
+  if (!l)
+    return -1;
+
+  return queue_len((LLQ *) l);
+}
+
+tsapi bool
+TSListIsValid(TSList l)
+{
+  int i, len;
+  void *ele;
+
+  if (!l)
+    return false;
+
+  len = queue_len((LLQ *) l);
+  for (i = 0; i < len; i++) {
+    ele = (void *) dequeue((LLQ *) l);
+    if (!ele)
+      return false;
+    enqueue((LLQ *) l, ele);
+  }
+  return true;
+}
+
+/*--- TSIpAddrList operations -------------------------------------------------*/
+tsapi TSIpAddrList
+TSIpAddrListCreate(void)
+{
+  return (void *) create_queue();       /* this queue will be a list of IpAddrEle* */
+}
+
+tsapi void
+TSIpAddrListDestroy(TSIpAddrList ip_addrl)
+{
+  TSIpAddrEle *ipaddr_ele;
+
+  if (!ip_addrl) {
+    return;
+  }
+
+  /* dequeue each element and free it;
+     currently, an element can only be an TSIpAddrEle
+     or it can be an TSIpAddr ?? */
+  while (!queue_is_empty((LLQ *) ip_addrl)) {
+    ipaddr_ele = (TSIpAddrEle *) dequeue((LLQ *) ip_addrl);
+
+    if (!ipaddr_ele)
+      continue;
+
+    TSIpAddrEleDestroy(ipaddr_ele);
+  }
+
+  /* we have removed everything on the list so free list */
+  delete_queue((LLQ *) ip_addrl);
+  return;
+}
+
+tsapi TSMgmtError
+TSIpAddrListEnqueue(TSIpAddrList ip_addrl, TSIpAddrEle * ip_addr)
+{
+  int ret;
+
+  ink_assert(ip_addrl && ip_addr);
+  if (!ip_addrl || !ip_addr)
+    return TS_ERR_PARAMS;
+
+  ret = enqueue((LLQ *) ip_addrl, ip_addr);
+  if (ret == 0) {
+    return TS_ERR_FAIL;
+  } else {
+    return TS_ERR_OKAY;
+  }
+}
+
+
+/* The the TSIpAddrEle returned is actually removed from the end of list */
+tsapi TSIpAddrEle *
+TSIpAddrListDequeue(TSIpAddrList ip_addrl)
+{
+  ink_assert(ip_addrl);
+  if (!ip_addrl || queue_is_empty((LLQ *) ip_addrl))
+    return NULL;
+
+  return (TSIpAddrEle *) dequeue((LLQ *) ip_addrl);
+}
+
+
+tsapi int
+TSIpAddrListLen(TSIpAddrList ip_addrl)
+{
+  ink_assert(ip_addrl);
+  if (!ip_addrl)
+    return -1;
+
+  return queue_len((LLQ *) ip_addrl);
+}
+
+tsapi bool
+TSIpAddrListIsEmpty(TSIpAddrList ip_addrl)
+{
+  ink_assert(ip_addrl);
+  if (!ip_addrl)
+    return true;
+
+  return queue_is_empty((LLQ *) ip_addrl);
+}
+
+// returns false if any of the IpAddrEle is not an valid IP address by making
+// use of ccu_checkIpAddrEle; if return false, the ip's may be reordered
+// from the original list
+tsapi bool
+TSIpAddrListIsValid(TSIpAddrList ip_addrl)
+{
+  int i, len;
+  TSIpAddrEle *ele;
+
+  if (!ip_addrl)
+    return false;
+
+  len = queue_len((LLQ *) ip_addrl);
+  for (i = 0; i < len; i++) {
+    ele = (TSIpAddrEle *) dequeue((LLQ *) ip_addrl);
+    if (!ccu_checkIpAddrEle(ele)) {
+      enqueue((LLQ *) ip_addrl, ele);
+      return false;
+    }
+    enqueue((LLQ *) ip_addrl, ele);
+  }
+  return true;
+}
+
+/*--- TSPortList operations ----------------------------------------------*/
+tsapi TSPortList
+TSPortListCreate()
+{
+  return (void *) create_queue();       /* this queue will be a list of TSPortEle* */
+}
+
+tsapi void
+TSPortListDestroy(TSPortList portl)
+{
+  TSPortEle *port_ele;
+
+  if (!portl) {
+    return;
+  }
+  // dequeue each element and free it
+  while (!queue_is_empty((LLQ *) portl)) {
+    port_ele = (TSPortEle *) dequeue((LLQ *) portl);
+
+    if (!port_ele)
+      continue;
+
+    TSPortEleDestroy(port_ele);
+  }
+
+  /* we have removed everything on the list so free list */
+  delete_queue((LLQ *) portl);
+  return;
+}
+
+tsapi TSMgmtError
+TSPortListEnqueue(TSPortList portl, TSPortEle * port)
+{
+  int ret;
+
+  ink_assert(portl && port);
+  if (!portl || !port)
+    return TS_ERR_PARAMS;
+
+  ret = enqueue((LLQ *) portl, port);   /* returns TRUE=1 or FALSE=0 */
+  if (ret == 0) {
+    return TS_ERR_FAIL;
+  } else {
+    return TS_ERR_OKAY;
+  }
+}
+
+tsapi TSPortEle *
+TSPortListDequeue(TSPortList portl)
+{
+  ink_assert(portl);
+  if (!portl || queue_is_empty((LLQ *) portl))
+    return NULL;
+
+  return (TSPortEle *) dequeue((LLQ *) portl);
+}
+
+tsapi int
+TSPortListLen(TSPortList portl)
+{
+  ink_assert(portl);
+  if (!portl)
+    return -1;
+
+  return queue_len((LLQ *) portl);
+}
+
+tsapi bool
+TSPortListIsEmpty(TSPortList portl)
+{
+  ink_assert(portl);
+  if (!portl)
+    return true;
+
+  return queue_is_empty((LLQ *) portl);
+}
+
+// returns false if any of the PortEle's has a port_a <= 0;
+// if returns false, then will return the entire port list
+// intact, although the ports may not be ordered in the same way
+tsapi bool
+TSPortListIsValid(TSPortList portl)
+{
+  int i, len;
+  TSPortEle *ele;
+
+  if (!portl)
+    return false;
+
+  len = queue_len((LLQ *) portl);
+  for (i = 0; i < len; i++) {
+    ele = (TSPortEle *) dequeue((LLQ *) portl);
+    if (!ccu_checkPortEle(ele)) {
+      enqueue((LLQ *) portl, ele);
+      return false;
+    }
+    enqueue((LLQ *) portl, ele);
+  }
+  return true;
+}
+
+
+/*--- TSDomainList operations -----------------------------------------*/
+tsapi TSDomainList
+TSDomainListCreate()
+{
+  return (void *) create_queue();       /* this queue will be a list of char* */
+}
+
+tsapi void
+TSDomainListDestroy(TSDomainList domainl)
+{
+  TSDomain *domain;
+
+  if (!domainl) {
+    return;
+  }
+
+  /* dequeue each element and free it */
+  while (!queue_is_empty((LLQ *) domainl)) {
+    domain = (TSDomain *) dequeue((LLQ *) domainl);
+
+    if (!domain)
+      continue;
+
+    TSDomainDestroy(domain);
+  }
+
+  delete_queue((LLQ *) domainl);
+}
+
+tsapi TSMgmtError
+TSDomainListEnqueue(TSDomainList domainl, TSDomain * domain)
+{
+  int ret;
+
+  ink_assert(domainl && domain);
+  if (!domainl || !domain)
+    return TS_ERR_PARAMS;
+
+  ret = enqueue((LLQ *) domainl, domain);       /* returns TRUE=1 or FALSE=0 */
+  if (ret == 0) {
+    return TS_ERR_FAIL;
+  } else {
+    return TS_ERR_OKAY;
+  }
+}
+
+tsapi TSDomain *
+TSDomainListDequeue(TSDomainList domainl)
+{
+  ink_assert(domainl);
+  if (!domainl || queue_is_empty((LLQ *) domainl))
+    return NULL;
+
+  return (TSDomain *) dequeue((LLQ *) domainl);
+}
+
+tsapi bool
+TSDomainListIsEmpty(TSDomainList domainl)
+{
+  ink_assert(domainl);
+  if (!domainl)
+    return true;
+
+  return queue_is_empty((LLQ *) domainl);
+}
+
+tsapi int
+TSDomainListLen(TSDomainList domainl)
+{
+  ink_assert(domainl);
+  if (!domainl)
+    return -1;
+
+  return queue_len((LLQ *) domainl);
+}
+
+// returns false if encounter a NULL hostname and ip
+tsapi bool
+TSDomainListIsValid(TSDomainList domainl)
+{
+  int i, len;
+  TSDomain *dom;
+
+  if (!domainl)
+    return false;
+
+  len = queue_len((LLQ *) domainl);
+  for (i = 0; i < len; i++) {
+    dom = (TSDomain *) dequeue((LLQ *) domainl);
+    if (!dom) {
+      return false;
+    }
+    if (!dom->domain_val) {
+      return false;
+    }
+    enqueue((LLQ *) domainl, dom);
+  }
+  return true;
+
+}
+
+/*--- TSStringList operations --------------------------------------*/
+tsapi TSStringList
+TSStringListCreate()
+{
+  return (void *) create_queue();       /* this queue will be a list of char* */
+}
+
+/* usually, must be an empty list before destroying*/
+tsapi void
+TSStringListDestroy(TSStringList strl)
+{
+  char *str;
+
+  if (!strl) {
+    return;
+  }
+
+  /* dequeue each element and free it */
+  while (!queue_is_empty((LLQ *) strl)) {
+    str = (char *) dequeue((LLQ *) strl);
+    ats_free(str);
+  }
+
+  delete_queue((LLQ *) strl);
+}
+
+tsapi TSMgmtError
+TSStringListEnqueue(TSStringList strl, char *str)
+{
+  int ret;
+
+  ink_assert(strl && str);
+  if (!strl || !str)
+    return TS_ERR_PARAMS;
+
+  ret = enqueue((LLQ *) strl, str);     /* returns TRUE=1 or FALSE=0 */
+  if (ret == 0) {
+    return TS_ERR_FAIL;
+  } else {
+    return TS_ERR_OKAY;
+  }
+}
+
+tsapi char *
+TSStringListDequeue(TSStringList strl)
+{
+  ink_assert(strl);
+  if (!strl || queue_is_empty((LLQ *) strl))
+    return NULL;
+
+  return (char *) dequeue((LLQ *) strl);
+}
+
+tsapi bool
+TSStringListIsEmpty(TSStringList strl)
+{
+  ink_assert(strl);
+  if (!strl)
+    return true;
+
+  return queue_is_empty((LLQ *) strl);
+}
+
+tsapi int
+TSStringListLen(TSStringList strl)
+{
+  ink_assert(strl);
+  if (!strl)
+    return -1;
+
+  return queue_len((LLQ *) strl);
+}
+
+// returns false if any element is NULL string
+tsapi bool
+TSStringListIsValid(TSStringList strl)
+{
+  int i, len;
+  char *str;
+
+  if (!strl)
+    return false;
+
+  len = queue_len((LLQ *) strl);
+  for (i = 0; i < len; i++) {
+    str = (char *) dequeue((LLQ *) strl);
+    if (!str)
+      return false;
+    enqueue((LLQ *) strl, str);
+  }
+  return true;
+}
+
+/*--- TSIntList operations --------------------------------------*/
+tsapi TSIntList
+TSIntListCreate()
+{
+  return (void *) create_queue();       /* this queue will be a list of int* */
+}
+
+/* usually, must be an empty list before destroying*/
+tsapi void
+TSIntListDestroy(TSIntList intl)
+{
+  int *iPtr;
+
+  if (!intl)
+    return;
+
+  /* dequeue each element and free it */
+  while (!queue_is_empty((LLQ *) intl)) {
+    iPtr = (int *) dequeue((LLQ *) intl);
+    ats_free(iPtr);
+  }
+
+  delete_queue((LLQ *) intl);
+  return;
+}
+
+tsapi TSMgmtError
+TSIntListEnqueue(TSIntList intl, int *elem)
+{
+  int ret;
+
+  ink_assert(intl && elem);
+  if (!intl || !elem)
+    return TS_ERR_PARAMS;
+
+  ret = enqueue((LLQ *) intl, elem);    /* returns TRUE=1 or FALSE=0 */
+  if (ret == 0) {
+    return TS_ERR_FAIL;
+  } else {
+    return TS_ERR_OKAY;
+  }
+}
+
+tsapi int *
+TSIntListDequeue(TSIntList intl)
+{
+  ink_assert(intl);
+  if (!intl || queue_is_empty((LLQ *) intl))
+    return NULL;
+
+  return (int *) dequeue((LLQ *) intl);
+}
+
+tsapi bool
+TSIntListIsEmpty(TSIntList intl)
+{
+  ink_assert(intl);
+  if (!intl)
+    return true;
+
+  return queue_is_empty((LLQ *) intl);
+}
+
+tsapi int
+TSIntListLen(TSIntList intl)
+{
+  ink_assert(intl);
+  if (!intl)
+    return -1;
+
+  return queue_len((LLQ *) intl);
+}
+
+tsapi bool
+TSIntListIsValid(TSIntList intl, int min, int max)
+{
+  if (!intl)
+    return false;
+
+  for (unsigned long i = 0; i < queue_len((LLQ *) intl); i++) {
+    int *item = (int *) dequeue((LLQ *) intl);
+    if (*item < min) {
+      return false;
+    }
+    if (*item > max) {
+      return false;
+    }
+    enqueue((LLQ *) intl, item);
+  }
+  return true;
+}
+
+
+// helper fn that sets default values for the info passed in
+void
+init_pdss_format(TSPdSsFormat * info)
+{
+  info->pd_type = TS_PD_UNDEFINED;
+  info->pd_val = NULL;
+  info->sec_spec.active = 0;
+  info->sec_spec.time.hour_a = 0;
+  info->sec_spec.time.min_a = 0;
+  info->sec_spec.time.hour_b = 0;
+  info->sec_spec.time.min_b = 0;
+  info->sec_spec.src_ip = TS_INVALID_IP_ADDR;
+  info->sec_spec.prefix = NULL;
+  info->sec_spec.suffix = NULL;
+  info->sec_spec.port = TS_INVALID_PORT;
+  info->sec_spec.method = TS_METHOD_UNDEFINED;
+  info->sec_spec.scheme = TS_SCHEME_UNDEFINED;
+}
+
+/*--- allocate/deallocate operations --------------------------------------*/
+tsapi TSMgmtEvent *
+TSEventCreate(void)
+{
+  TSMgmtEvent *event = (TSMgmtEvent *)ats_malloc(sizeof(TSMgmtEvent));
+
+  event->id = -1;
+  event->name = NULL;
+  event->description = NULL;
+  event->priority = TS_EVENT_PRIORITY_UNDEFINED;
+
+  return event;
+}
+
+tsapi void
+TSEventDestroy(TSMgmtEvent * event)
+{
+  if (event) {
+    ats_free(event->name);
+    ats_free(event->description);
+    ats_free(event);
+  }
+  return;
+}
+
+tsapi TSRecordEle *
+TSRecordEleCreate(void)
+{
+  TSRecordEle *ele = (TSRecordEle *)ats_malloc(sizeof(TSRecordEle));
+
+  ele->rec_name = NULL;
+  ele->rec_type = TS_REC_UNDEFINED;
+
+  return ele;
+}
+
+tsapi void
+TSRecordEleDestroy(TSRecordEle * ele)
+{
+  if (ele) {
+    ats_free(ele->rec_name);
+    if (ele->rec_type == TS_REC_STRING && ele->valueT.string_val)
+      ats_free(ele->valueT.string_val);
+    ats_free(ele);
+  }
+  return;
+}
+
+tsapi TSIpAddrEle *
+TSIpAddrEleCreate(void)
+{
+  TSIpAddrEle *ele = (TSIpAddrEle *)ats_malloc(sizeof(TSIpAddrEle));
+
+  /* set default values */
+  ele->type = TS_IP_UNDEFINED;
+  ele->ip_a = TS_INVALID_IP_ADDR;
+  ele->cidr_a = TS_INVALID_IP_CIDR;
+  ele->port_a = TS_INVALID_PORT;
+  ele->ip_b = TS_INVALID_IP_ADDR;
+  ele->cidr_b = TS_INVALID_IP_CIDR;
+  ele->port_b = TS_INVALID_PORT;
+  return ele;
+}
+
+tsapi void
+TSIpAddrEleDestroy(TSIpAddrEle * ele)
+{
+  if (ele) {
+    ats_free(ele->ip_a);
+    ats_free(ele->ip_b);
+    ats_free(ele);
+  }
+
+  return;
+}
+
+tsapi TSPortEle *
+TSPortEleCreate(void)
+{
+  TSPortEle *ele = (TSPortEle *)ats_malloc(sizeof(TSPortEle));
+
+  ele->port_a = TS_INVALID_PORT;
+  ele->port_b = TS_INVALID_PORT;
+
+  return ele;
+}
+
+tsapi void
+TSPortEleDestroy(TSPortEle * ele)
+{
+  ats_free(ele);
+  return;
+}
+
+tsapi TSDomain *
+TSDomainCreate()
+{
+  TSDomain *ele = (TSDomain *)ats_malloc(sizeof(TSDomain));
+
+  ele->domain_val = NULL;
+  ele->port = TS_INVALID_PORT;
+
+  return ele;
+}
+
+tsapi void
+TSDomainDestroy(TSDomain * ele)
+{
+  if (ele) {
+    ats_free(ele->domain_val);
+    ats_free(ele);
+  }
+}
+
+tsapi TSSspec *
+TSSspecCreate(void)
+{
+  TSSspec *sec_spec = (TSSspec *)ats_malloc(sizeof(TSSspec));
+
+  /* set defaults */
+  sec_spec->active = 0;
+  (sec_spec->time).hour_a = 0;
+  (sec_spec->time).min_a = 0;
+  (sec_spec->time).hour_b = 0;
+  (sec_spec->time).min_b = 0;
+  sec_spec->src_ip = TS_INVALID_IP_ADDR;
+  sec_spec->prefix = NULL;
+  sec_spec->suffix = NULL;
+  sec_spec->port = NULL;
+  sec_spec->method = TS_METHOD_UNDEFINED;
+  sec_spec->scheme = TS_SCHEME_UNDEFINED;
+  return sec_spec;
+}
+
+tsapi void
+TSSspecDestroy(TSSspec * ele)
+{
+  if (ele) {
+    ats_free(ele->prefix);
+    ats_free(ele->suffix);
+    if (ele->port)
+      TSPortEleDestroy(ele->port);
+    ats_free(ele);
+  }
+  return;
+}
+
+tsapi TSPdSsFormat *
+TSPdSsFormatCreate(void)
+{
+  TSPdSsFormat *ele = (TSPdSsFormat *)ats_malloc(sizeof(TSPdSsFormat));
+
+  /* should set default values here */
+  ele->pd_type = TS_PD_UNDEFINED;
+  ele->pd_val = NULL;
+
+  ele->sec_spec.active = 0;
+  (ele->sec_spec.time).hour_a = -1;
+  (ele->sec_spec.time).min_a = -1;
+  (ele->sec_spec.time).hour_b = -1;
+  (ele->sec_spec.time).min_b = -1;
+  ele->sec_spec.src_ip = TS_INVALID_IP_ADDR;
+  ele->sec_spec.prefix = NULL;
+  ele->sec_spec.suffix = NULL;
+  ele->sec_spec.port = NULL;
+  ele->sec_spec.method = TS_METHOD_UNDEFINED;
+  ele->sec_spec.scheme = TS_SCHEME_UNDEFINED;
+
+  return ele;
+}
+
+tsapi void
+TSPdSsFormatDestroy(TSPdSsFormat * ele)
+{
+  if (ele) {
+    ats_free(ele->pd_val);
+    ats_free(ele->sec_spec.src_ip);
+    ats_free(ele->sec_spec.prefix);
+    ats_free(ele->sec_spec.suffix);
+    if (ele->sec_spec.port)
+      TSPortEleDestroy(ele->sec_spec.port);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * CacheObj
+ *-------------------------------------------------------------*/
+tsapi TSCacheEle *
+TSCacheEleCreate(TSRuleTypeT type)
+{
+  TSCacheEle *ele;
+
+  if (type != TS_CACHE_NEVER &&
+      type != TS_CACHE_IGNORE_NO_CACHE &&
+      type != TS_CACHE_CLUSTER_CACHE_LOCAL &&
+      type != TS_CACHE_IGNORE_CLIENT_NO_CACHE &&
+      type != TS_CACHE_IGNORE_SERVER_NO_CACHE &&
+      type != TS_CACHE_PIN_IN_CACHE &&
+      type != TS_CACHE_REVALIDATE &&
+      type != TS_CACHE_TTL_IN_CACHE && type != TS_CACHE_AUTH_CONTENT && type != TS_TYPE_UNDEFINED)
+    return NULL;                // invalid type
+
+  ele = (TSCacheEle *)ats_malloc(sizeof(TSCacheEle));
+
+  /* set defaults */
+  ele->cfg_ele.type = type;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  init_pdss_format(&(ele->cache_info));
+  ele->time_period.d = 0;
+  ele->time_period.h = 0;
+  ele->time_period.m = 0;
+  ele->time_period.s = 0;
+
+  return ele;
+}
+
+tsapi void
+TSCacheEleDestroy(TSCacheEle * ele)
+{
+  if (ele) {
+    TSPdSsFormatDestroy(&(ele->cache_info));
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * CongestionObj
+ *-------------------------------------------------------------*/
+// FIXME: for now use defaults specified in feature spec; the
+// defaults though are configurable as records, so should use
+// records values instead
+tsapi TSCongestionEle *
+TSCongestionEleCreate()
+{
+  TSCongestionEle *ele = (TSCongestionEle *)ats_malloc(sizeof(TSCongestionEle));
+
+  /* set defaults */
+  ele->cfg_ele.type = TS_CONGESTION;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  //init_pdss_format(&(ele->congestion_info));
+  ele->pd_type = TS_PD_UNDEFINED;
+  ele->pd_val = NULL;
+  ele->prefix = NULL;
+  ele->port = TS_INVALID_PORT;
+  ele->scheme = TS_HTTP_CONGEST_PER_IP;
+  ele->max_connection_failures = 5;
+  ele->fail_window = 120;
+  ele->proxy_retry_interval = 10;
+  ele->client_wait_interval = 300;
+  ele->wait_interval_alpha = 30;
+  ele->live_os_conn_timeout = 60;
+  ele->live_os_conn_retries = 2;
+  ele->dead_os_conn_timeout = 15;
+  ele->dead_os_conn_retries = 1;
+  ele->max_connection = -1;
+  ele->error_page_uri = ats_strdup("congestion#retryAfter");
+
+  return ele;
+}
+
+tsapi void
+TSCongestionEleDestroy(TSCongestionEle * ele)
+{
+  if (ele) {
+    ats_free(ele->pd_val);
+    ats_free(ele->prefix);
+    ats_free(ele->error_page_uri);
+    ats_free(ele);
+  }
+  return;
+}
+
+
+/*-------------------------------------------------------------
+ * HostingObj
+ *-------------------------------------------------------------*/
+tsapi TSHostingEle *
+TSHostingEleCreate()
+{
+  TSHostingEle *ele = (TSHostingEle *)ats_malloc(sizeof(TSHostingEle));
+
+  ele->cfg_ele.type = TS_HOSTING;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->pd_type = TS_PD_UNDEFINED;
+  ele->pd_val = NULL;
+  ele->volumes = TS_INVALID_LIST;
+
+  return ele;
+}
+
+tsapi void
+TSHostingEleDestroy(TSHostingEle * ele)
+{
+  if (ele) {
+    ats_free(ele->pd_val);
+    if (ele->volumes)
+      TSIntListDestroy(ele->volumes);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * IcpObject
+ *-------------------------------------------------------------*/
+tsapi TSIcpEle *
+TSIcpEleCreate()
+{
+  TSIcpEle *ele = (TSIcpEle *)ats_malloc(sizeof(TSIcpEle));
+
+  /* set defaults */
+  ele->cfg_ele.type = TS_ICP;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->peer_hostname = NULL;
+  ele->peer_host_ip_addr = TS_INVALID_IP_ADDR;
+  ele->peer_type = TS_ICP_UNDEFINED;
+  ele->peer_proxy_port = TS_INVALID_PORT;
+  ele->peer_icp_port = TS_INVALID_PORT;
+  ele->is_multicast = false;
+  ele->mc_ip_addr = TS_INVALID_IP_ADDR;
+  ele->mc_ttl = TS_MC_TTL_SINGLE_SUBNET;       // default value
+
+  return ele;
+
+}
+
+tsapi void
+TSIcpEleDestroy(TSIcpEle * ele)
+{
+  if (ele) {
+    ats_free(ele->peer_hostname);
+    ats_free(ele->peer_host_ip_addr);
+    ats_free(ele->mc_ip_addr);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSIpAllowEle
+ *-------------------------------------------------------------*/
+tsapi TSIpAllowEle *
+TSIpAllowEleCreate()
+{
+
+  TSIpAllowEle *ele = (TSIpAllowEle *)ats_malloc(sizeof(TSIpAllowEle));
+
+  ele->cfg_ele.type = TS_IP_ALLOW;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->src_ip_addr = TS_INVALID_IP_ADDR;
+  ele->action = TS_IP_ALLOW_UNDEFINED;
+
+  return ele;
+}
+
+tsapi void
+TSIpAllowEleDestroy(TSIpAllowEle * ele)
+{
+  if (ele) {
+    if (ele->src_ip_addr)
+      TSIpAddrEleDestroy(ele->src_ip_addr);
+    ats_free(ele);
+  }
+  return;
+
+}
+
+
+/*-------------------------------------------------------------
+ * TSLogFilterEle
+ *-------------------------------------------------------------*/
+tsapi TSLogFilterEle *
+TSLogFilterEleCreate()
+{
+  TSLogFilterEle *ele = (TSLogFilterEle *)ats_malloc(sizeof(TSLogFilterEle));
+
+  ele->cfg_ele.type = TS_LOG_FILTER;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->action = TS_LOG_FILT_UNDEFINED;
+  ele->filter_name = NULL;
+  ele->log_field = NULL;
+  ele->compare_op = TS_LOG_COND_UNDEFINED;
+  ele->compare_str = NULL;
+  ele->compare_int = -1;
+  return ele;
+}
+
+tsapi void
+TSLogFilterEleDestroy(TSLogFilterEle * ele)
+{
+  if (ele) {
+    ats_free(ele->filter_name);
+    ats_free(ele->log_field);
+    ats_free(ele->compare_str);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSLogFormatEle
+ *-------------------------------------------------------------*/
+tsapi TSLogFormatEle *
+TSLogFormatEleCreate()
+{
+  TSLogFormatEle *ele = (TSLogFormatEle *)ats_malloc(sizeof(TSLogFormatEle));
+
+  ele->cfg_ele.type = TS_LOG_FORMAT;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->name = NULL;
+  ele->format = NULL;
+  ele->aggregate_interval_secs = 0;
+
+  return ele;
+}
+
+tsapi void
+TSLogFormatEleDestroy(TSLogFormatEle * ele)
+{
+  if (ele) {
+    ats_free(ele->name);
+    ats_free(ele->format);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSLogObjectEle
+ *-------------------------------------------------------------*/
+tsapi TSLogObjectEle *
+TSLogObjectEleCreate()
+{
+  TSLogObjectEle *ele = (TSLogObjectEle *)ats_malloc(sizeof(TSLogObjectEle));
+
+  ele->cfg_ele.type = TS_LOG_OBJECT;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->format_name = NULL;
+  ele->file_name = NULL;
+  ele->log_mode = TS_LOG_MODE_UNDEFINED;
+  ele->collation_hosts = TS_INVALID_LIST;
+  ele->filters = TS_INVALID_LIST;
+  ele->protocols = TS_INVALID_LIST;
+  ele->server_hosts = TS_INVALID_LIST;
+
+  return ele;
+}
+
+tsapi void
+TSLogObjectEleDestroy(TSLogObjectEle * ele)
+{
+  if (ele) {
+    ats_free(ele->format_name);
+    ats_free(ele->file_name);
+    if (ele->collation_hosts)
+      TSDomainListDestroy(ele->collation_hosts);
+    if (ele->filters)
+      TSStringListDestroy(ele->filters);
+    if (ele->protocols)
+      TSStringListDestroy(ele->protocols);
+    if (ele->server_hosts)
+      TSStringListDestroy(ele->server_hosts);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSParentProxyEleCreate
+ *-------------------------------------------------------------*/
+tsapi TSParentProxyEle *
+TSParentProxyEleCreate(TSRuleTypeT type)
+{
+  TSParentProxyEle *ele;
+
+  if (type != TS_PP_PARENT && type != TS_PP_GO_DIRECT && type != TS_TYPE_UNDEFINED)
+    return NULL;
+
+  ele = (TSParentProxyEle *)ats_malloc(sizeof(TSParentProxyEle));
+
+  ele->cfg_ele.type = type;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  init_pdss_format(&(ele->parent_info));
+  ele->rr = TS_RR_NONE;
+  ele->proxy_list = TS_INVALID_LIST;
+  ele->direct = false;
+
+  return ele;
+}
+
+tsapi void
+TSParentProxyEleDestroy(TSParentProxyEle * ele)
+{
+  if (ele) {
+    TSPdSsFormatDestroy(&(ele->parent_info));
+    if (ele->proxy_list)
+      TSDomainListDestroy(ele->proxy_list);
+    ats_free(ele);
+  }
+
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSVolumeEle
+ *-------------------------------------------------------------*/
+tsapi TSVolumeEle *
+TSVolumeEleCreate()
+{
+  TSVolumeEle *ele = (TSVolumeEle *)ats_malloc(sizeof(TSVolumeEle));
+
+  ele->cfg_ele.type = TS_VOLUME;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->volume_num = 0;
+  ele->scheme = TS_VOLUME_UNDEFINED;
+  ele->volume_size = 0;
+  ele->size_format = TS_SIZE_FMT_UNDEFINED;
+
+  return ele;
+}
+
+tsapi void
+TSVolumeEleDestroy(TSVolumeEle * ele)
+{
+  ats_free(ele);
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSPluginEle
+ *-------------------------------------------------------------*/
+tsapi TSPluginEle *
+TSPluginEleCreate()
+{
+  TSPluginEle *ele = (TSPluginEle *)ats_malloc(sizeof(TSPluginEle));
+
+  ele->cfg_ele.type = TS_PLUGIN;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->name = NULL;
+  ele->args = TS_INVALID_LIST;
+
+  return ele;
+}
+
+tsapi void
+TSPluginEleDestroy(TSPluginEle * ele)
+{
+  if (ele) {
+    ats_free(ele->name);
+    if (ele->args)
+      TSStringListDestroy(ele->args);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSRemapEle
+ *-------------------------------------------------------------*/
+TSRemapEle *
+TSRemapEleCreate(TSRuleTypeT type)
+{
+  TSRemapEle *ele;
+
+  if (type != TS_REMAP_MAP &&
+      type != TS_REMAP_REVERSE_MAP &&
+      type != TS_REMAP_REDIRECT && type != TS_REMAP_REDIRECT_TEMP && type != TS_TYPE_UNDEFINED)
+    return NULL;
+
+  ele = (TSRemapEle *)ats_malloc(sizeof(TSRemapEle));
+  ele->cfg_ele.type = type;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->map = true;
+  ele->from_scheme = TS_SCHEME_UNDEFINED;
+  ele->from_host = NULL;
+  ele->from_port = TS_INVALID_PORT;
+  ele->from_path_prefix = NULL;
+  ele->to_scheme = TS_SCHEME_UNDEFINED;
+  ele->to_host = NULL;
+  ele->to_port = TS_INVALID_PORT;
+  ele->to_path_prefix = NULL;
+
+  return ele;
+}
+
+void
+TSRemapEleDestroy(TSRemapEle * ele)
+{
+  if (ele) {
+    ats_free(ele->from_host);
+    ats_free(ele->from_path_prefix);
+    ats_free(ele->to_host);
+    ats_free(ele->to_path_prefix);
+    ats_free(ele);
+  }
+}
+
+/*-------------------------------------------------------------
+ * TSSocksEle
+ *-------------------------------------------------------------*/
+TSSocksEle *
+TSSocksEleCreate(TSRuleTypeT type)
+{
+  TSSocksEle *ele = (TSSocksEle *)ats_malloc(sizeof(TSSocksEle));
+
+  ele->cfg_ele.type = type;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->ip_addrs = TS_INVALID_LIST;
+  ele->dest_ip_addr = TS_INVALID_IP_ADDR;
+  ele->socks_servers = TS_INVALID_LIST;
+  ele->rr = TS_RR_NONE;
+  ele->username = NULL;
+  ele->password = NULL;
+
+  return ele;
+}
+
+void
+TSSocksEleDestroy(TSSocksEle * ele)
+{
+  if (ele) {
+    if (ele->ip_addrs)
+      TSIpAddrListDestroy(ele->ip_addrs);
+    if (ele->dest_ip_addr)
+      TSIpAddrEleDestroy(ele->dest_ip_addr);
+    if (ele->socks_servers)
+      TSDomainListDestroy(ele->socks_servers);
+    ats_free(ele->username);
+    ats_free(ele->password);
+    ats_free(ele);
+  }
+}
+
+/*-------------------------------------------------------------
+ * TSSplitDnsEle
+ *-------------------------------------------------------------*/
+TSSplitDnsEle *
+TSSplitDnsEleCreate()
+{
+  TSSplitDnsEle *ele = (TSSplitDnsEle *)ats_malloc(sizeof(TSSplitDnsEle));
+
+  ele->cfg_ele.type = TS_SPLIT_DNS;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->pd_type = TS_PD_UNDEFINED;
+  ele->pd_val = NULL;
+  ele->dns_servers_addrs = TS_INVALID_LIST;
+  ele->def_domain = NULL;
+  ele->search_list = TS_INVALID_LIST;
+
+  return ele;
+}
+
+void
+TSSplitDnsEleDestroy(TSSplitDnsEle * ele)
+{
+  if (ele) {
+    ats_free(ele->pd_val);
+    if (ele->dns_servers_addrs)
+      TSDomainListDestroy(ele->dns_servers_addrs);
+    ats_free(ele->def_domain);
+    if (ele->search_list)
+      TSDomainListDestroy(ele->search_list);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSStorageEle
+ *-------------------------------------------------------------*/
+TSStorageEle *
+TSStorageEleCreate()
+{
+  TSStorageEle *ele = (TSStorageEle *)ats_malloc(sizeof(TSStorageEle));
+
+  ele->cfg_ele.type = TS_STORAGE;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->pathname = NULL;
+  ele->size = -1;
+
+  return ele;
+}
+
+void
+TSStorageEleDestroy(TSStorageEle * ele)
+{
+  if (ele) {
+    ats_free(ele->pathname);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSUpdateEle
+ *-------------------------------------------------------------*/
+TSUpdateEle *
+TSUpdateEleCreate()
+{
+  TSUpdateEle *ele = (TSUpdateEle *)ats_malloc(sizeof(TSUpdateEle));
+
+  ele->cfg_ele.type = TS_UPDATE_URL;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->url = NULL;
+  ele->headers = TS_INVALID_LIST;
+  ele->offset_hour = -1;
+  ele->interval = -1;
+  ele->recursion_depth = 0;
+
+  return ele;
+}
+
+void
+TSUpdateEleDestroy(TSUpdateEle * ele)
+{
+  if (ele) {
+    ats_free(ele->url);
+    if (ele->headers)
+      TSStringListDestroy(ele->headers);
+    ats_free(ele);
+  }
+  return;
+}
+
+/*-------------------------------------------------------------
+ * TSVirtIpAddrEle
+ *-------------------------------------------------------------*/
+TSVirtIpAddrEle *
+TSVirtIpAddrEleCreate()
+{
+  TSVirtIpAddrEle *ele = (TSVirtIpAddrEle *)ats_malloc(sizeof(TSVirtIpAddrEle));
+
+  ele->cfg_ele.type = TS_VADDRS;
+  ele->cfg_ele.error = TS_ERR_OKAY;
+  ele->intr = NULL;
+  ele->sub_intr = -1;
+  ele->ip_addr = TS_INVALID_IP_ADDR;
+
+  return ele;
+}
+
+void
+TSVirtIpAddrEleDestroy(TSVirtIpAddrEle * ele)
+{
+  if (ele) {
+    ats_free(ele->intr);
+    ats_free(ele->ip_addr);
+    ats_free(ele);
+  }
+}
+
+/***************************************************************************
+ * API Core
+ ***************************************************************************/
+
+/*--- statistics operations ----------------------------------------------- */
+tsapi TSMgmtError
+TSStatsReset(bool cluster, const char *name)
+{
+  return StatsReset(cluster, name);
+}
+
+/*--- variable operations ------------------------------------------------- */
+/* Call the CfgFileIO variable operations */
+
+tsapi TSMgmtError
+TSRecordGet(char *rec_name, TSRecordEle * rec_val)
+{
+  return MgmtRecordGet(rec_name, rec_val);
+}
+
+TSMgmtError
+TSRecordGetInt(const char *rec_name, TSInt * int_val)
+{
+  TSMgmtError ret = TS_ERR_OKAY;
+
+  TSRecordEle *ele = TSRecordEleCreate();
+  ret = MgmtRecordGet(rec_name, ele);
+  if (ret != TS_ERR_OKAY)
+    goto END;
+
+  *int_val = ele->valueT.int_val;
+
+END:
+  TSRecordEleDestroy(ele);
+  return ret;
+}
+
+TSMgmtError
+TSRecordGetCounter(const char *rec_name, TSCounter * counter_val)
+{
+  TSMgmtError ret;
+
+  TSRecordEle *ele = TSRecordEleCreate();
+  ret = MgmtRecordGet(rec_name, ele);
+  if (ret != TS_ERR_OKAY)
+    goto END;
+  *counter_val = ele->valueT.counter_val;
+
+END:
+  TSRecordEleDestroy(ele);
+  return ret;
+}
+
+TSMgmtError
+TSRecordGetFloat(const char *rec_name, TSFloat * float_val)
+{
+  TSMgmtError ret;
+
+  TSRecordEle *ele = TSRecordEleCreate();
+  ret = MgmtRecordGet(rec_name, ele);
+  if (ret != TS_ERR_OKAY)
+    goto END;
+  *float_val = ele->valueT.float_val;
+
+END:
+  TSRecordEleDestroy(ele);
+  return ret;
+}
+
+TSMgmtError
+TSRecordGetString(const char *rec_name, TSString *string_val)
+{
+  TSMgmtError ret;
+
+  TSRecordEle *ele = TSRecordEleCreate();
+  ret = MgmtRecordGet(rec_name, ele);
+  if (ret != TS_ERR_OKAY)
+    goto END;
+
+  *string_val = ats_strdup(ele->valueT.string_val);
+
+END:
+  TSRecordEleDestroy(ele);
+  return ret;
+}
+
+
+/*-------------------------------------------------------------------------
+ * TSRecordGetMlt
+ *-------------------------------------------------------------------------
+ * Purpose: Retrieves list of record values specified in the rec_names list
+ * Input: rec_names - list of record names to retrieve
+ *        rec_vals  - queue of TSRecordEle* that correspons to rec_names
+ * Output: If at any point, while retrieving one of the records there's a
+ *         a failure then the entire process is aborted, all the allocated
+ *         TSRecordEle's are deallocated and TS_ERR_FAIL is returned.
+ * Note: rec_names is not freed; if function is successful, the rec_names
+ *       list is unchanged!
+ *
+ * IS THIS FUNCTION AN ATOMIC TRANSACTION? Technically, all the variables
+ * requested should refer to the same config file. But a lock is only
+ * put on each variable it is looked up. Need to be able to lock
+ * a file while retrieving all the requested records!
+ */
+
+tsapi TSMgmtError
+TSRecordGetMlt(TSStringList rec_names, TSList rec_vals)
+{
+  TSRecordEle *ele;
+  char *rec_name;
+  int num_recs, i, j;
+  TSMgmtError ret;
+
+  if (!rec_names || !rec_vals)
+    return TS_ERR_PARAMS;
+
+  num_recs = queue_len((LLQ *) rec_names);
+  for (i = 0; i < num_recs; i++) {
+    rec_name = (char *) dequeue((LLQ *) rec_names);     // remove name from list
+    if (!rec_name)
+      return TS_ERR_PARAMS;    // NULL is invalid record name
+
+    ele = TSRecordEleCreate();
+
+    ret = MgmtRecordGet(rec_name, ele);
+    enqueue((LLQ *) rec_names, rec_name);       // return name to list
+
+    if (ret != TS_ERR_OKAY) {  // RecordGet failed
+      // need to free all the ele's allocated by MgmtRecordGet so far
+      TSRecordEleDestroy(ele);
+      for (j = 0; j < i; j++) {
+        ele = (TSRecordEle *) dequeue((LLQ *) rec_vals);
+        if (ele)
+          TSRecordEleDestroy(ele);
+      }
+      return ret;
+    }
+    enqueue((LLQ *) rec_vals, ele);     // all is good; add ele to end of list
+  }
+
+  return TS_ERR_OKAY;
+}
+
+tsapi TSMgmtError
+TSRecordGetMatchMlt(const char * regex, TSList rec_vals)
+{
+  if (!regex || !rec_vals) {
+    return TS_ERR_PARAMS;
+  }
+
+  return MgmtRecordGetMatching(regex, rec_vals);
+}
+
+tsapi TSMgmtError
+TSRecordSet(const char *rec_name, const char *val, TSActionNeedT * action_need)
+{
+  return MgmtRecordSet(rec_name, val, action_need);
+}
+
+
+tsapi TSMgmtError
+TSRecordSetInt(const char *rec_name, TSInt int_val, TSActionNeedT * action_need)
+{
+  return MgmtRecordSetInt(rec_name, int_val, action_need);
+}
+
+tsapi TSMgmtError
+TSRecordSetCounter(const char *rec_name, TSCounter counter_val, TSActionNeedT * action_need)
+{
+  return MgmtRecordSetCounter(rec_name, counter_val, action_need);
+}
+
+tsapi TSMgmtError
+TSRecordSetFloat(const char *rec_name, TSFloat float_val, TSActionNeedT * action_need)
+{
+  return MgmtRecordSetFloat(rec_name, float_val, action_need);
+}
+
+tsapi TSMgmtError
+TSRecordSetString(const char *rec_name, const char *str_val, TSActionNeedT * action_need)
+{
+  return MgmtRecordSetString(rec_name, str_val, action_need);
+}
+
+
+/*-------------------------------------------------------------------------
+ * TSRecordSetMlt
+ *-------------------------------------------------------------------------
+ * Basically iterates through each RecordEle in rec_list and calls the
+ * appropriate "MgmtRecordSetxx" function for that record
+ * Input: rec_list - queue of TSRecordEle*; each TSRecordEle* must have
+ *        a valid record name (remains unchanged on return)
+ * Output: if there is an error during the setting of one of the variables then
+ *         will continue to try to set the other variables. Error response will
+ *         indicate though that not all set operations were successful.
+ *         TS_ERR_OKAY is returned if all the records are set successfully
+ * Note: Determining the action needed is more complex b/c need to keep
+ * track of which record change is the most drastic out of the group of
+ * records; action_need will be set to the most severe action needed of
+ * all the "Set" calls
+ */
+tsapi TSMgmtError
+TSRecordSetMlt(TSList rec_list, TSActionNeedT * action_need)
+{
+  int num_recs, ret, i;
+  TSRecordEle *ele;
+  TSMgmtError status = TS_ERR_OKAY;
+  TSActionNeedT top_action_req = TS_ACTION_UNDEFINED;
+
+  if (!rec_list || !action_need)
+    return TS_ERR_PARAMS;
+
+  num_recs = queue_len((LLQ *) rec_list);
+
+  for (i = 0; i < num_recs; i++) {
+    ele = (TSRecordEle *) dequeue((LLQ *) rec_list);
+    if (ele) {
+      switch (ele->rec_type) {
+      case TS_REC_INT:
+        ret = MgmtRecordSetInt(ele->rec_name, ele->valueT.int_val, action_need);
+        break;
+      case TS_REC_COUNTER:
+        ret = MgmtRecordSetCounter(ele->rec_name, ele->valueT.counter_val, action_need);
+        break;
+      case TS_REC_FLOAT:
+        ret = MgmtRecordSetFloat(ele->rec_name, ele->valueT.float_val, action_need);
+        break;
+      case TS_REC_STRING:
+        ret = MgmtRecordSetString(ele->rec_name, ele->valueT.string_val, action_need);
+        break;
+      default:
+        ret = TS_ERR_FAIL;
+        break;
+      };                        /* end of switch (ele->rec_type) */
+      if (ret != TS_ERR_OKAY)
+        status = TS_ERR_FAIL;
+
+      // keep track of most severe action; reset if needed
+      // the TSACtionNeedT should be listed such that most severe actions have
+      // a lower number (so most severe action == 0)
+      if (*action_need < top_action_req)        // a more severe action
+        top_action_req = *action_need;
+    }
+    enqueue((LLQ *) rec_list, ele);
+  }
+
+  // set the action_need to be the most sever action needed of all the "set" calls
+  *action_need = top_action_req;
+
+  return status;
+}
+
+/*--- api initialization and shutdown -------------------------------------*/
+tsapi TSMgmtError
+TSInit(const char *socket_path, TSInitOptionT options)
+{
+  return Init(socket_path, options);
+}
+
+tsapi TSMgmtError
+TSTerminate()
+{
+  return Terminate();
+}
+
+/*--- plugin initialization -----------------------------------------------*/
+inkexp extern void
+TSPluginInit(int /* argc ATS_UNUSED */, const char */* argv ATS_UNUSED */[])
+{
+}
+
+/*--- network operations --------------------------------------------------*/
+tsapi TSMgmtError
+TSConnect(TSIpAddr /* ip_addr ATS_UNUSED */, int /* port ATS_UNUSED */)
+{
+  return TS_ERR_OKAY;
+}
+tsapi TSMgmtError
+TSDisconnectCbRegister(TSDisconnectFunc * /* func ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  return TS_ERR_OKAY;
+}
+tsapi TSMgmtError
+TSDisconnectRetrySet(int /* retries ATS_UNUSED */, int /* retry_sleep_msec ATS_UNUSED */)
+{
+  return TS_ERR_OKAY;
+}
+tsapi TSMgmtError
+TSDisconnect()
+{
+  return TS_ERR_OKAY;
+}
+
+/*--- control operations --------------------------------------------------*/
+/* NOTE: these operations are wrappers that make direct calls to the CoreAPI */
+
+/* TSProxyStateGet: get the proxy state (on/off)
+ * Input:  <none>
+ * Output: proxy state (on/off)
+ */
+tsapi TSProxyStateT
+TSProxyStateGet()
+{
+  return ProxyStateGet();
+}
+
+/* TSProxyStateSet: set the proxy state (on/off)
+ * Input:  proxy_state - set to on/off
+ *         clear - start TS with cache clearing option,
+ *                 when stopping TS should always be TS_CACHE_CLEAR_OFF
+ * Output: TSMgmtError
+ */
+tsapi TSMgmtError
+TSProxyStateSet(TSProxyStateT proxy_state, TSCacheClearT clear)
+{
+  return ProxyStateSet(proxy_state, clear);
+}
+
+/* TSReconfigure: tell traffic_server to re-read its configuration files
+ * Input:  <none>
+ * Output: TSMgmtError
+ */
+tsapi TSMgmtError
+TSReconfigure()
+{
+  return Reconfigure();
+}
+
+/* TSRestart: restarts Traffic Server
+ * Input:  cluster - local or cluster-wide
+ * Output: TSMgmtError
+ */
+tsapi TSMgmtError
+TSRestart(bool cluster)
+{
+  return Restart(cluster);
+}
+
+/* TSActionDo: based on TSActionNeedT, will take appropriate action
+ * Input: action - action that needs to be taken
+ * Output: TSMgmtError
+ */
+tsapi TSMgmtError
+TSActionDo(TSActionNeedT action)
+{
+  TSMgmtError ret;
+
+  switch (action) {
+  case TS_ACTION_RESTART:
+    ret = Restart(true);        // cluster wide by default?
+    break;
+  case TS_ACTION_RECONFIGURE:
+    ret = Reconfigure();
+    break;
+  case TS_ACTION_DYNAMIC:
+    /* do nothing - change takes effect immediately */
+    return TS_ERR_OKAY;
+  case TS_ACTION_SHUTDOWN:
+  default:
+    return TS_ERR_FAIL;
+  }
+
+  return ret;
+}
+
+/* TSBouncer: restarts the traffic_server process(es)
+ * Input:  cluster - local or cluster-wide
+ * Output: TSMgmtError
+ */
+tsapi TSMgmtError
+TSBounce(bool cluster)
+{
+  return Bounce(cluster);
+}
+
+tsapi TSMgmtError
+TSStorageDeviceCmdOffline(char const* dev)
+{
+  return StorageDeviceCmdOffline(dev);
+}
+
+
+/*--- diags output operations ---------------------------------------------*/
+tsapi void
+TSDiags(TSDiagsT mode, const char *fmt, ...)
+{
+  // need to find way to pass arguments to the function
+  va_list ap;
+
+  va_start(ap, fmt);            // initialize the argument pointer ap
+  Diags(mode, fmt, ap);
+  va_end(ap);
+
+  return;
+}
+
+/* NOTE: user must deallocate the memory for the string returned */
+char *
+TSGetErrorMessage(TSMgmtError err_id)
+{
+  char msg[1024];               // need to define a MAX_ERR_MSG_SIZE???
+  char *err_msg = NULL;
+
+  switch (err_id) {
+  case TS_ERR_OKAY:
+    snprintf(msg, sizeof(msg), "[%d] Everything's looking good.", err_id);
+    break;
+  case TS_ERR_READ_FILE:      /* Error occur in reading file */
+    snprintf(msg, sizeof(msg), "[%d] Unable to find/open file for reading.", err_id);
+    break;
+  case TS_ERR_WRITE_FILE:     /* Error occur in writing file */
+    snprintf(msg, sizeof(msg), "[%d] Unable to find/open file for writing.", err_id);
+    break;
+  case TS_ERR_PARSE_CONFIG_RULE:      /* Error in parsing configuration file */
+    snprintf(msg, sizeof(msg), "[%d] Error parsing configuration file.", err_id);
+    break;
+  case TS_ERR_INVALID_CONFIG_RULE:    /* Invalid Configuration Rule */
+    snprintf(msg, sizeof(msg), "[%d] Invalid configuration rule reached.", err_id);
+    break;
+  case TS_ERR_NET_ESTABLISH:
+    snprintf(msg, sizeof(msg), "[%d] Error establishing socket connection.", err_id);
+    break;
+  case TS_ERR_NET_READ:       /* Error reading from socket */
+    snprintf(msg, sizeof(msg), "[%d] Error reading from socket.", err_id);
+    break;
+  case TS_ERR_NET_WRITE:      /* Error writing to socket */
+    snprintf(msg, sizeof(msg), "[%d] Error writing to socket.", err_id);
+    break;
+  case TS_ERR_NET_EOF:        /* Hit socket EOF */
+    snprintf(msg, sizeof(msg), "[%d] Reached socket EOF.", err_id);
+    break;
+  case TS_ERR_NET_TIMEOUT:    /* Timed out waiting for socket read */
+    snprintf(msg, sizeof(msg), "[%d] Timed out waiting for socket read.", err_id);
+    break;
+  case TS_ERR_SYS_CALL:       /* Error in sys/utility call, eg.malloc */
+    snprintf(msg, sizeof(msg), "[%d] Error in basic system/utility call.", err_id);
+    break;
+  case TS_ERR_PARAMS:         /* Invalid parameters for a fn */
+    snprintf(msg, sizeof(msg), "[%d] Invalid parameters passed into function call.", err_id);
+    break;
+  case TS_ERR_FAIL:
+    snprintf(msg, sizeof(msg), "[%d] Generic Fail message (ie. CoreAPI call).", err_id);
+    break;
+
+  default:
+    snprintf(msg, sizeof(msg), "[%d] Invalid error type.", err_id);
+    break;
+  }
+
+  err_msg = ats_strdup(msg);
+  return err_msg;
+}
+
+
+/*--- password operations -------------------------------------------------*/
+tsapi TSMgmtError
+TSEncryptPassword(char *passwd, char **e_passwd)
+{
+  INK_DIGEST_CTX md5_context;
+  char passwd_md5[16];
+  char *passwd_md5_str;
+  int passwd_md5_str_len = 32;
+
+  ink_assert(passwd);
+  ink_assert(TS_ENCRYPT_PASSWD_LEN <= passwd_md5_str_len);
+
+  const size_t md5StringSize = (passwd_md5_str_len + 1) * sizeof(char);
+  passwd_md5_str = (char *)ats_malloc(md5StringSize);
+
+  ink_code_incr_md5_init(&md5_context);
+  ink_code_incr_md5_update(&md5_context, passwd, strlen(passwd));
+  ink_code_incr_md5_final(passwd_md5, &md5_context);
+  ink_code_md5_stringify(passwd_md5_str, md5StringSize, passwd_md5);
+
+  // use only a subset of the MD5 string
+  passwd_md5_str[TS_ENCRYPT_PASSWD_LEN] = '\0';
+  *e_passwd = passwd_md5_str;
+
+  return TS_ERR_OKAY;
+}
+
+/*--- direct file operations ----------------------------------------------*/
+tsapi TSMgmtError
+TSConfigFileRead(TSFileNameT file, char **text, int *size, int *version)
+{
+  return ReadFile(file, text, size, version);
+}
+
+tsapi TSMgmtError
+TSConfigFileWrite(TSFileNameT file, char *text, int size, int version)
+{
+  return WriteFile(file, text, size, version);
+}
+
+
+/* ReadFromUrl: reads a remotely located config file into a buffer
+ * Input:  url        - remote location of the file
+ *         header     - a buffer is allocated on the header char* pointer
+ *         headerSize - the size of the header buffer is returned
+ *         body       - a buffer is allocated on the body char* pointer
+ *         bodySize   - the size of the body buffer is returned
+ * Output: TSMgmtError   - TS_ERR_OKAY if succeed, TS_ERR_FAIL otherwise
+ * Obsolete:  tsapi TSMgmtError TSReadFromUrl (char *url, char **text, int *size);
+ * NOTE: The URL can be expressed in the following forms:
+ *       - http://www.example.com:80/products/network/index.html
+ *       - http://www.example.com/products/network/index.html
+ *       - http://www.example.com/products/network/
+ *       - http://www.example.com/
+ *       - http://www.example.com
+ *       - www.example.com
+ * NOTE: header and headerSize can be NULL
+ */
+tsapi TSMgmtError
+TSReadFromUrl(char *url, char **header, int *headerSize, char **body, int *bodySize)
+{
+  //return ReadFromUrl(url, header, headerSize, body, bodySize);
+  return TSReadFromUrlEx(url, header, headerSize, body, bodySize, URL_TIMEOUT);
+
+}
+
+tsapi TSMgmtError
+TSReadFromUrlEx(const char *url, char **header, int *headerSize, char **body, int *bodySize, int timeout)
+{
+  int hFD = -1;
+  char *httpHost = NULL;
+  char *httpPath = NULL;
+  int httpPort = HTTP_PORT;
+  int bufsize = URL_BUFSIZE;
+  char buffer[URL_BUFSIZE];
+  char request[BUFSIZE];
+  char *hdr_temp;
+  char *bdy_temp;
+  TSMgmtError status = TS_ERR_OKAY;
+
+  // Sanity check
+  if (!url)
+    return TS_ERR_FAIL;
+  if (timeout < 0) {
+    timeout = URL_TIMEOUT;
+  }
+  // Chop the protocol part, if it exists
+  const char *doubleSlash = strstr(url, "//");
+  if (doubleSlash) {
+    url = doubleSlash + 2;      // advance two positions to get rid of leading '//'
+  }
+  // the path starts after the first occurrence of '/'
+  const char *tempPath = strstr(url, "/");
+  char *host_and_port;
+  if (tempPath) {
+    host_and_port = ats_strndup(url, strlen(url) - strlen(tempPath));
+    tempPath += 1;              // advance one position to get rid of leading '/'
+    httpPath = ats_strdup(tempPath);
+  } else {
+    host_and_port = ats_strdup(url);
+    httpPath = ats_strdup("");
+  }
+
+  // the port proceed by a ":", if it exists
+  char *colon = strstr(host_and_port, ":");
+  if (colon) {
+    httpHost = ats_strndup(host_and_port, strlen(host_and_port) - strlen(colon));
+    colon += 1;                 // advance one position to get rid of leading ':'
+    httpPort = ink_atoi(colon);
+    if (httpPort <= 0)
+      httpPort = HTTP_PORT;
+  } else {
+    httpHost = ats_strdup(host_and_port);
+  }
+  ats_free(host_and_port);
+
+  hFD = connectDirect(httpHost, httpPort, timeout);
+  if (hFD == -1) {
+    status = TS_ERR_NET_ESTABLISH;
+    goto END;
+  }
+
+  /* sending the HTTP request via the established socket */
+  snprintf(request, BUFSIZE, "http://%s:%d/%s", httpHost, httpPort, httpPath);
+  if ((status = sendHTTPRequest(hFD, request, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  memset(buffer, 0, bufsize);   /* empty the buffer */
+  if ((status = readHTTPResponse(hFD, buffer, bufsize, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((status = parseHTTPResponse(buffer, &hdr_temp, headerSize, &bdy_temp, bodySize))
+      != TS_ERR_OKAY)
+    goto END;
+
+  if (header && headerSize)
+    *header = ats_strndup(hdr_temp, *headerSize);
+  *body = ats_strndup(bdy_temp, *bodySize);
+
+END:
+  ats_free(httpHost);
+  ats_free(httpPath);
+
+  return status;
+}
+
+/*--- cache inspector operations -------------------------------------------*/
+
+tsapi TSMgmtError
+TSLookupFromCacheUrl(TSString url, TSString * info)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+  int fd;
+  char request[BUFSIZE];
+  char response[URL_BUFSIZE];
+  char *header;
+  char *body;
+  int hdr_size;
+  int bdy_size;
+  int timeout = URL_TIMEOUT;
+  TSInt ts_port = 8080;
+
+  if ((err = TSRecordGetInt("proxy.config.http.server_port", &ts_port)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((fd = connectDirect("localhost", ts_port, timeout)) < 0) {
+    err = TS_ERR_FAIL;
+    goto END;
+  }
+  snprintf(request, BUFSIZE, "http://{cache}/lookup_url?url=%s", url);
+  if ((err = sendHTTPRequest(fd, request, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  memset(response, 0, URL_BUFSIZE);
+  if ((err = readHTTPResponse(fd, response, URL_BUFSIZE, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((err = parseHTTPResponse(response, &header, &hdr_size, &body, &bdy_size)) != TS_ERR_OKAY)
+    goto END;
+
+  *info = ats_strndup(body, bdy_size);
+
+END:
+  return err;
+}
+
+tsapi TSMgmtError
+TSLookupFromCacheUrlRegex(TSString url_regex, TSString * list)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+  int fd = -1;
+  char request[BUFSIZE];
+  char response[URL_BUFSIZE];
+  char *header;
+  char *body;
+  int hdr_size;
+  int bdy_size;
+  int timeout = -1;
+  TSInt ts_port = 8080;
+
+  if ((err = TSRecordGetInt("proxy.config.http.server_port", &ts_port)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((fd = connectDirect("localhost", ts_port, timeout)) < 0) {
+    err = TS_ERR_FAIL;
+    goto END;
+  }
+  snprintf(request, BUFSIZE, "http://{cache}/lookup_regex?url=%s", url_regex);
+  if ((err = sendHTTPRequest(fd, request, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  memset(response, 0, URL_BUFSIZE);
+  if ((err = readHTTPResponse(fd, response, URL_BUFSIZE, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((err = parseHTTPResponse(response, &header, &hdr_size, &body, &bdy_size)) != TS_ERR_OKAY)
+    goto END;
+
+  *list = ats_strndup(body, bdy_size);
+END:
+  return err;
+}
+
+tsapi TSMgmtError
+TSDeleteFromCacheUrl(TSString url, TSString * info)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+  int fd = -1;
+  char request[BUFSIZE];
+  char response[URL_BUFSIZE];
+  char *header;
+  char *body;
+  int hdr_size;
+  int bdy_size;
+  int timeout = URL_TIMEOUT;
+  TSInt ts_port = 8080;
+
+  if ((err = TSRecordGetInt("proxy.config.http.server_port", &ts_port)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((fd = connectDirect("localhost", ts_port, timeout)) < 0) {
+    err = TS_ERR_FAIL;
+    goto END;
+  }
+  snprintf(request, BUFSIZE, "http://{cache}/delete_url?url=%s", url);
+  if ((err = sendHTTPRequest(fd, request, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  memset(response, 0, URL_BUFSIZE);
+  if ((err = readHTTPResponse(fd, response, URL_BUFSIZE, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((err = parseHTTPResponse(response, &header, &hdr_size, &body, &bdy_size)) != TS_ERR_OKAY)
+    goto END;
+
+  *info = ats_strndup(body, bdy_size);
+
+END:
+  return err;
+}
+
+tsapi TSMgmtError
+TSDeleteFromCacheUrlRegex(TSString url_regex, TSString * list)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+  int fd = -1;
+  char request[BUFSIZE];
+  char response[URL_BUFSIZE];
+  char *header;
+  char *body;
+  int hdr_size;
+  int bdy_size;
+  int timeout = -1;
+  TSInt ts_port = 8080;
+
+  if ((err = TSRecordGetInt("proxy.config.http.server_port", &ts_port)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((fd = connectDirect("localhost", ts_port, timeout)) < 0) {
+    err = TS_ERR_FAIL;
+    goto END;
+  }
+  snprintf(request, BUFSIZE, "http://{cache}/delete_regex?url=%s", url_regex);
+  if ((err = sendHTTPRequest(fd, request, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  memset(response, 0, URL_BUFSIZE);
+  if ((err = readHTTPResponse(fd, response, URL_BUFSIZE, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((err = parseHTTPResponse(response, &header, &hdr_size, &body, &bdy_size)) != TS_ERR_OKAY)
+    goto END;
+
+  *list = ats_strndup(body, bdy_size);
+END:
+  return err;
+}
+
+tsapi TSMgmtError
+TSInvalidateFromCacheUrlRegex(TSString url_regex, TSString * list)
+{
+  TSMgmtError err = TS_ERR_OKAY;
+  int fd = -1;
+  char request[BUFSIZE];
+  char response[URL_BUFSIZE];
+  char *header;
+  char *body;
+  int hdr_size;
+  int bdy_size;
+  int timeout = -1;
+  TSInt ts_port = 8080;
+
+  if ((err = TSRecordGetInt("proxy.config.http.server_port", &ts_port)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((fd = connectDirect("localhost", ts_port, timeout)) < 0) {
+    err = TS_ERR_FAIL;
+    goto END;
+  }
+  snprintf(request, BUFSIZE, "http://{cache}/invalidate_regex?url=%s", url_regex);
+  if ((err = sendHTTPRequest(fd, request, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  memset(response, 0, URL_BUFSIZE);
+  if ((err = readHTTPResponse(fd, response, URL_BUFSIZE, (uint64_t) timeout)) != TS_ERR_OKAY)
+    goto END;
+
+  if ((err = parseHTTPResponse(response, &header, &hdr_size, &body, &bdy_size)) != TS_ERR_OKAY)
+    goto END;
+
+  *list = ats_strndup(body, bdy_size);
+END:
+  return err;
+}
+
+/*--- snapshot operations -------------------------------------------------*/
+tsapi TSMgmtError
+TSSnapshotTake(char *snapshot_name)
+{
+  return SnapshotTake(snapshot_name);
+}
+
+tsapi TSMgmtError
+TSSnapshotRestore(char *snapshot_name)
+{
+  return SnapshotRestore(snapshot_name);
+}
+
+tsapi TSMgmtError
+TSSnapshotRemove(char *snapshot_name)
+{
+  return SnapshotRemove(snapshot_name);
+}
+
+tsapi TSMgmtError
+TSSnapshotGetMlt(TSStringList snapshots)
+{
+  return SnapshotGetMlt((LLQ *) snapshots);
+}
+
+/*--- events --------------------------------------------------------------*/
+tsapi TSMgmtError
+TSEventSignal(char *event_name, ...)
+{
+  va_list ap;
+  TSMgmtError ret;
+
+  va_start(ap, event_name);     // initialize the argument pointer ap
+  ret = EventSignal(event_name, ap);
+  va_end(ap);
+  return ret;
+}
+
+tsapi TSMgmtError
+TSEventResolve(char *event_name)
+{
+  return EventResolve(event_name);
+}
+
+tsapi TSMgmtError
+TSActiveEventGetMlt(TSList active_events)
+{
+  return ActiveEventGetMlt((LLQ *) active_events);
+}
+
+tsapi TSMgmtError
+TSEventIsActive(char *event_name, bool * is_current)
+{
+  return EventIsActive(event_name, is_current);
+}
+
+tsapi TSMgmtError
+TSEventSignalCbRegister(char *event_name, TSEventSignalFunc func, void *data)
+{
+  return EventSignalCbRegister(event_name, func, data);
+}
+
+tsapi TSMgmtError
+TSEventSignalCbUnregister(char *event_name, TSEventSignalFunc func)
+{
+  return EventSignalCbUnregister(event_name, func);
+}
+
+/***************************************************************************
+ * API Helper Functions for Data Carrier Structures
+ ***************************************************************************/
+
+/*--- abstracted file operations ------------------------------------------*/
+
+/* calls teh CfgContext class constructor */
+tsapi TSCfgContext
+TSCfgContextCreate(TSFileNameT file)
+{
+  return ((void *) CfgContextCreate(file));
+}
+
+/* calls the CfgContext class destructor */
+tsapi TSMgmtError
+TSCfgContextDestroy(TSCfgContext ctx)
+{
+  return (CfgContextDestroy((CfgContext *) ctx));
+}
+
+tsapi TSMgmtError
+TSCfgContextCommit(TSCfgContext ctx, TSActionNeedT * /* action_need ATS_UNUSED */, TSIntList errRules)
+{
+  return (CfgContextCommit((CfgContext *) ctx, (LLQ *) errRules));
+}
+
+tsapi TSMgmtError
+TSCfgContextGet(TSCfgContext ctx)
+{
+  return (CfgContextGet((CfgContext *) ctx));
+}
+
+/*--- helper operations ---------------------------------------------------*/
+/* returns number of ele's in the TSCfgContext */
+int
+TSCfgContextGetCount(TSCfgContext ctx)
+{
+  return CfgContextGetCount((CfgContext *) ctx);
+}
+
+/* user must typecast the TSCfgEle to appropriate TSEle before using */
+TSCfgEle *
+TSCfgContextGetEleAt(TSCfgContext ctx, int index)
+{
+  return CfgContextGetEleAt((CfgContext *) ctx, index);
+}
+
+/* iterator */
+TSCfgEle *
+TSCfgContextGetFirst(TSCfgContext ctx, TSCfgIterState * state)
+{
+  return CfgContextGetFirst((CfgContext *) ctx, state);
+}
+
+TSCfgEle *
+TSCfgContextGetNext(TSCfgContext ctx, TSCfgIterState * state)
+{
+  return CfgContextGetNext((CfgContext *) ctx, state);
+}
+
+TSMgmtError
+TSCfgContextMoveEleUp(TSCfgContext ctx, int index)
+{
+  return CfgContextMoveEleUp((CfgContext *) ctx, index);
+}
+
+TSMgmtError
+TSCfgContextMoveEleDown(TSCfgContext ctx, int index)
+{
+  return CfgContextMoveEleDown((CfgContext *) ctx, index);
+}
+
+
+TSMgmtError
+TSCfgContextAppendEle(TSCfgContext ctx, TSCfgEle * ele)
+{
+  return CfgContextAppendEle((CfgContext *) ctx, ele);
+}
+
+TSMgmtError
+TSCfgContextInsertEleAt(TSCfgContext ctx, TSCfgEle * ele, int index)
+{
+  return CfgContextInsertEleAt((CfgContext *) ctx, ele, index);
+}
+
+TSMgmtError
+TSCfgContextRemoveEleAt(TSCfgContext ctx, int index)
+{
+  return CfgContextRemoveEleAt((CfgContext *) ctx, index);
+}
+
+TSMgmtError
+TSCfgContextRemoveAll(TSCfgContext ctx)
+{
+  return CfgContextRemoveAll((CfgContext *) ctx);
+}
+
+/* checks if the fields in the ele are all valid */
+bool
+TSIsValid(TSCfgEle * ele)
+{
+  CfgEleObj *ele_obj;
+
+  if (!ele)
+    return false;
+
+  ele_obj = create_ele_obj_from_ele(ele);
+  return (ele_obj->isValid());
+}
+
+/* Network conifguration functions */
+
+// close all file descriptors belong to process specified by pid
+void
+closeAllFds()
+{
+  const int BUFFLEN = 200;
+  char command[BUFFLEN];
+  char buffer[BUFFLEN];         // this is assumption.. so would break if some one try to hack this.
+  int num;
+
+  // WARNING:  this part of code doesn't work yet.  for some strange reason, we can not upgrade
+  //           to root
+  if (getuid() != 0) {          // if not super user, need to upgrade to root
+    //printf("before upgrade:current uid%d, euid %d\n", getuid(), geteuid()); fflush(stdout);
+    if(seteuid(0) != 0 || setreuid(0, 0) != 0)
+      perror("[closeAllFds] unable to restore root privilege.");
+    //printf("after upgrade:current uid %d, euid %d\n", getuid(), geteuid()); fflush(stdout);
+  }
+
+  if (getuid() == 0 || geteuid() == 0) {        // only if it's successful
+    snprintf(command, sizeof(command), "/bin/ls -1 /proc/%" PRId64 "/fd", (int64_t)getpid());
+    FILE *fd = popen(command, "r");
+    if (fd) {
+      while (!feof(fd)) {
+        ATS_UNUSED_RETURN(fgets(buffer, BUFFLEN, fd));
+        num = atoi(buffer);
+        if (num != fileno(fd) && num != 0 && num != 1 && num != 2) {   // for out put
+          //printf("closing fd (%d)\n", num); fflush(stdout);
+          close(num);
+        }
+      }
+      pclose(fd);
+    }
+  }
+}
+
+tsapi TSMgmtError rm_start_proxy()
+{
+
+#if defined(linux)
+  static time_t rm_last_stop = 0;
+
+  time_t time_diff = time(NULL) - rm_last_stop;
+
+  if (time_diff > 60 || time_diff < 0) {        // wrap around??  shall never happen
+    pid_t pid;
+    const char *argv[3];
+    argv[0] = "net_config";
+    argv[1] = "7";
+    argv[2] = NULL;
+    char command_path[PATH_NAME_MAX + 1];
+    Layout::relative_to(command_path, sizeof(command_path),
+                        Layout::get()->bindir, "net_config");
+
+    rm_last_stop = time(NULL);
+
+    if ((pid = fork()) < 0) {
+      exit(1);
+    } else if (pid > 0) {
+      // do not wait
+    } else {
+      closeAllFds();
+      close(1);                 // close STDOUT
+      close(2);                 // close STDERR
+
+      int res = execv(command_path, (char* const*)argv);
+      if (res != 0) {
+        perror("[rm_start_proxy] net_config stop_proxy failed! ");
+      }
+      _exit(res);
+    }
+  }                             // else already try to stop within 60s Window, skip
+#endif
+  return TS_ERR_OKAY;
+}
diff --git a/mgmt/api/INKMgmtAPIStub.cc b/mgmt/api/INKMgmtAPIStub.cc
new file mode 100644
index 00000000..36219cd2
--- /dev/null
+++ b/mgmt/api/INKMgmtAPIStub.cc
@@ -0,0 +1,799 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: InkMgmtAPIStub.cc
+ * Purpose: This file implements the management api stub functions
+ * Created: 12/17/00
+ * Created by: Eric Wong
+ *
+ ***************************************************************************/
+
+#include "mgmtapi.h"
+
+/***************************************************************************
+ * API Helper Functions for Data Carrier Structures
+ ***************************************************************************/
+
+/*--- INKList operations --------------------------------------------------*/
+inkapi INKList
+INKListCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKListDestroy(INKList l)
+{
+  return;
+}
+
+inkapi INKError
+INKListEnqueue(INKList l, void *data)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi void *
+INKListDequeue(INKList l)
+{
+  return NULL;
+}
+
+inkapi bool
+INKListIsEmpty(INKList l)
+{
+  return true;
+}
+
+inkapi int
+INKListLen(INKList l)
+{
+  return 0;
+}
+
+/*--- INKIpAddr operations ------------------------------------------------*/
+inkapi INKIpAddrList
+INKIpAddrListCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKIpAddrListDestroy(INKIpAddrList ip_addrl)
+{
+  return;
+}
+
+inkapi INKError
+INKIpAddrListEnqueue(INKIpAddrList ip_addrl, INKIpAddrEle * ip_addr)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKIpAddrEle *
+INKIpAddrListDequeue(INKIpAddrList ip_addrl)
+{
+  return NULL;
+}
+
+inkapi int
+INKIpAddrListLen(INKIpAddrList ip_addrl)
+{
+  return 0;
+}
+
+inkapi bool
+INKIpAddrListIsEmpty(INKIpAddrList ip_addrl)
+{
+  return true;
+}
+
+/*--- INKPortList operations ----------------------------------------------*/
+inkapi INKPortList
+INKPortListCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKPortListDestroy(INKPortList portl)
+{
+  return;
+}
+
+inkapi INKError
+INKPortListEnqueue(INKPortList portl, INKPortEle * port)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKPortEle *
+INKPortListDequeue(INKPortList portl)
+{
+  return NULL;
+}
+
+inkapi int
+INKPortListLen(INKPortList portl)
+{
+  return 0;
+}
+
+inkapi bool
+INKPortListIsEmpty(INKPortList portl)
+{
+  return true;
+}
+
+/*--- INKStringList operations --------------------------------------------*/
+inkapi INKStringList
+INKStringListCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKStringListDestroy(INKStringList strl)
+{
+  return;
+}
+
+inkapi INKError
+INKStringListEnqueue(INKStringList strl, char *wildmat_ele)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi char *
+INKStringListDequeue(INKStringList strl)
+{
+  return NULL;
+}
+
+inkapi bool
+INKStringListIsEmpty(INKStringList strl)
+{
+  return true;
+}
+
+inkapi int
+INKStringListLen(INKStringList strl)
+{
+  return 0;
+}
+
+/*--- INKDomainList operations --------------------------------------------*/
+inkapi INKDomainList
+INKDomainListCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKDomainListDestroy(INKDomainList domainl)
+{
+  return;
+}
+
+inkapi INKError
+INKDomainListEnqueue(INKDomainList domainl, INKDomain * domain)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKDomain *
+INKDomainListDequeue(INKDomainList domainl)
+{
+  return NULL;
+}
+
+inkapi bool
+INKDomainListIsEmpty(INKDomainList domainl)
+{
+  return true;
+}
+
+inkapi int
+INKDomainListLen(INKDomainList domainl)
+{
+  return 0;
+}
+
+/*--- allocate/deallocate operations --------------------------------------*/
+inkapi INKRecordEle *
+INKRecordEleCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKRecordEleDestroy(INKRecordEle * ele)
+{
+  return;
+}
+
+inkapi INKIpAddrEle *
+INKIpAddrEleCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKIpAddrEleDestroy(INKIpAddrEle * ele)
+{
+  return;
+}
+
+inkapi INKPortEle *
+INKPortEleCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKPortEleDestroy(INKPortEle * ele)
+{
+  return;
+}
+
+inkapi INKDomain *
+INKDomainCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKDomainDestroy(INKDomain * ele)
+{
+  return;
+}
+
+inkapi INKSspec *
+INKSspecCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKSspecDestroy(INKSspec * ele)
+{
+  return;
+}
+
+inkapi INKPdSsFormat *
+INKPdSsFormatCreate(void)
+{
+  return NULL;
+}
+
+inkapi void
+INKPdSsFormatDestroy(INKPdSsFormat * ele)
+{
+  return;
+}
+
+inkapi INKAdminAccessEle *
+INKAdminAccessEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKAdminAccessEleDestroy(INKAdminAccessEle * ele)
+{
+  return;
+}
+
+inkapi INKArmSecurityEle *
+INKArmSecurityEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKArmSecurityEleDestroy(INKArmSecurityEle * ele)
+{
+  return;
+}
+
+inkapi INKBypassEle *
+INKBypassEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKBypassEleDestroy(INKBypassEle * ele)
+{
+  return;
+}
+
+inkapi INKCacheEle *
+INKCacheEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKCacheEleDestroy(INKCacheEle * ele)
+{
+  return;
+}
+
+inkapi INKCongestionEle *
+INKCongestionEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKCongestionEleDestroy(INKCongestionEle * ele)
+{
+  return;
+}
+
+inkapi INKHostingEle *
+INKHostingEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKHostingEleDestroy(INKHostingEle * ele)
+{
+  return;
+}
+
+inkapi INKIcpEle *
+INKIcpEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKIcpEleDestory(INKIcpEle * ele)
+{
+  return;
+}
+
+inkapi INKLogFilterEle *
+INKLogFilterEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKLogFilterEleDestroy(INKLogFilterEle * ele)
+{
+  return;
+}
+
+inkapi INKLogFormatEle *
+INKLogFormatEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKLogFormatEleDestroy(INKLogFormatEle * ele)
+{
+  return;
+}
+
+inkapi INKLogObjectEle *
+INKLogObjectEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKLogObjectEleDestroy(INKLogObjectEle * ele)
+{
+  return;
+}
+
+inkapi INKParentProxyEle *
+INKParentProxyEleCreate()
+{
+  return NULL;
+}
+
+inkapi void
+INKParentProxyEleDestroy(INKParentProxyEle * ele)
+{
+  return;
+}
+
+INKRemapEle *
+INKRemapEleCreate()
+{
+  return NULL;
+}
+
+void
+INKRemapEleDestroy(INKRemapEle * ele)
+{
+  return;
+}
+
+INKSplitDnsEle *
+INKSplitDnsEleCreate()
+{
+  return NULL;
+}
+
+void
+INKSplitDnsDestroy(INKSplitDnsEle * ele)
+{
+  return;
+}
+
+INKUpdateEle *
+INKUpdateEleCreate()
+{
+  return NULL;
+}
+
+void
+INKUpdateEleDestroy(INKUpdateEle * ele)
+{
+  return;
+}
+
+INKVirtIpAddrEle *
+INKVirtIpAddrEleCreate()
+{
+  return NULL;
+}
+
+void
+INKVirtIpAddrEleDestroy(INKVirtIpAddrEle * ele)
+{
+  return;
+}
+
+/***************************************************************************
+ * API Core
+ ***************************************************************************/
+
+/*--- api initialization and shutdown -------------------------------------*/
+inkapi INKError
+INKInit()
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKTerminate()
+{
+  return INK_ERR_OKAY;
+}
+
+/*--- network operations --------------------------------------------------*/
+inkapi INKError
+INKConnect(INKIpAddr ip_addr, int port)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKDisconnectCbRegister(INKDisconnectFunc * func, void *data)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKDisconnectRetrySet(int retries, int retry_sleep_msec)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKDisconnect()
+{
+  return INK_ERR_OKAY;
+}
+
+/*--- control operations --------------------------------------------------*/
+inkapi INKProxyStateT
+INKProxyStateGet()
+{
+  return INK_PROXY_ON;
+}
+
+inkapi INKError
+INKProxyStateSet(INKProxyStateT proxy_state)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKReconfigure()
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRestart(bool cluster)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKActionDo(INKActionNeedT action)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKBounce(bool cluster)
+{
+  return INK_ERR_OKAY;
+}
+
+/*--- diags output operations ---------------------------------------------*/
+inkapi void
+INKDiags(INKDiagsT mode, const char *fmt, ...)
+{
+  return;
+}
+
+/*--- direct file operations ----------------------------------------------*/
+inkapi INKError
+INKConfigFileRead(INKFileNameT file, char **text, int *size, int *version)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKConfigFileWrite(INKFileNameT file, char *text, int size, int version)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKReadFromUrl(char *url, char **header, int *headerSize, char **body, int *bodySize)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKReadFromUrlEx(char *url, char **header, int *headerSize, char **body, int *bodySize, int timeout)
+{
+  return INK_ERR_OKAY;
+}
+
+/*--- snapshot operations -------------------------------------------------*/
+inkapi INKError
+INKSnapshotTake(char *snapshot_name)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKSnapshotRestore(char *snapshot_name)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKSnapshotsGet(INKStringList snapshots)
+{
+  return INK_ERR_OKAY;
+}
+
+/*--- variable operations -------------------------------------------------*/
+inkapi INKError
+INKRecordGet(char *rec_name, INKRecordEle * rec_val)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKRecordGetInt(char *rec_name, INKInt * int_val)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKRecordGetCounter(char *rec_name, INKCounter * counter_val)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKRecordGetFloat(char *rec_name, INKFloat * float_val)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKRecordGetString(char *rec_name, INKString * string_val)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRecordGetMlt(INKList rec_list)
+{
+  return INK_ERR_OKAY;
+}
+
+
+inkapi INKError
+INKRecordSet(char *rec_name, INKString val, INKActionNeedT * action_need)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRecordSetInt(char *rec_name, INKInt int_val, INKActionNeedT * action_need)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRecordSetCounter(char *rec_name, INKCounter counter_val, INKActionNeedT * action_nee)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRecordSetFloat(char *rec_name, INKFloat float_val, INKActionNeedT * action_nee)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRecordSetString(const char *rec_name, const char *str_val, INKActionNeedT * action_nee)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKRecordSetMlt(INKList rec_list, INKActionNeedT * action_need)
+{
+  return INK_ERR_OKAY;
+}
+
+
+/*--- alarms --------------------------------------------------------------*/
+inkapi INKError
+INKAlarmResolve(char *alarm_name)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKActiveAlarmGetMlt(INKList active_alarms)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKAlarmIsActive(char *alarm_name, bool * is_current)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKAlarmSignalCbRegister(char *alarm_name, INKAlarmSignalFunc * func, void *data)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKAlarmSignalCbUnregister(char *alarm_name, INKAlarmSignalFunc * func)
+{
+  return INK_ERR_OKAY;
+}
+
+
+/*--- abstracted file operations ------------------------------------------*/
+
+inkapi INKCfgContext
+INKCfgContextCreate(INKFileNameT file)
+{
+  return NULL;
+}
+
+inkapi INKError
+INKCfgContextDestroy(INKCfgContext ctx)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKCfgContextCommit(INKCfgContext ctx, INKActionNeedT * action_need)
+{
+  return INK_ERR_OKAY;
+}
+
+inkapi INKError
+INKCfgContextGet(INKCfgContext ctx)
+{
+  return INK_ERR_OKAY;
+}
+
+/*--- INKCfgContext Operations ---------------------------------------------*/
+int
+INKCfgContextGetCount(INKCfgContext ctx)
+{
+  return 0;
+}
+
+INKCfgEle *
+INKCfgContextGetEleAt(INKCfgContext ctx, int index)
+{
+  return NULL;
+}
+
+INKCfgEle *
+INKCfgContextGetFirst(INKCfgContext ctx, INKCfgIterState * state)
+{
+  return NULL;
+}
+
+INKCfgEle *
+INKCfgContextGetNext(INKCfgContext ctx, INKCfgIterState * state)
+{
+  return NULL;
+}
+
+INKError
+INKCfgContextMoveEleUp(INKCfgContext ctx, int index)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKCfgContextMoveEleDown(INKCfgContext ctx, int index)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKCfgContextAppendEle(INKCfgContext ctx, INKCfgEle * ele)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKCfgContextInsertEleAt(INKCfgContext ctx, INKCfgEle * ele, int index)
+{
+  return INK_ERR_OKAY;
+}
+
+INKError
+INKCfgContextRemoveEleAt(INKCfgContext ctx, int index)
+{
+  return INK_ERR_OKAY;
+}
+
+bool
+INKIsValid(INKCfgEle * ele)
+{
+  return true;
+}
+
diff --git a/mgmt/api/Makefile.am b/mgmt/api/Makefile.am
new file mode 100644
index 00000000..20d1c49b
--- /dev/null
+++ b/mgmt/api/Makefile.am
@@ -0,0 +1,93 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = include
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+MGMT_DEFS = @MGMT_DEFS@
+DEFS += $(MGMT_DEFS)
+
+noinst_LIBRARIES = libmgmtapilocal.a
+libmgmtapilocal_a_SOURCES = \
+  CfgContextDefs.h \
+  CoreAPI.cc \
+  EventControlMain.cc \
+  EventControlMain.h \
+  NetworkUtilsDefs.h \
+  NetworkUtilsLocal.cc \
+  NetworkUtilsLocal.h \
+  TSControlMain.cc \
+  TSControlMain.h
+
+lib_LTLIBRARIES = libtsmgmtshare.la libtsmgmt.la
+libtsmgmtshare_la_SOURCES = \
+  CfgContextImpl.cc \
+  CfgContextImpl.h \
+  CfgContextManager.cc \
+  CfgContextManager.h \
+  CfgContextUtils.cc \
+  CfgContextUtils.h \
+  CoreAPIShared.cc \
+  CoreAPIShared.h \
+  EventCallback.cc \
+  EventCallback.h \
+  GenericParser.cc \
+  GenericParser.h \
+  include/mgmtapi.h \
+  CoreAPI.h \
+  INKMgmtAPI.cc
+
+if BUILD_TESTS
+  noinst_PROGRAMS = traffic_api_cli_remote
+endif
+
+libtsmgmtshare_la_LDFLAGS = -version-info @TS_LIBTOOL_VERSION@
+
+libtsmgmt_la_LDFLAGS = -version-info @TS_LIBTOOL_VERSION@
+libtsmgmt_la_LIBADD = @LIBOBJS@ \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  libtsmgmtshare.la
+
+libtsmgmt_la_SOURCES = \
+  CoreAPIRemote.cc \
+  EventRegistration.cc \
+  EventRegistration.h \
+  NetworkUtilsRemote.cc \
+  NetworkUtilsRemote.h
+
+if BUILD_TESTS
+  traffic_api_cli_remote_SOURCES = APITestCliRemote.cc
+endif
+
+traffic_api_cli_remote_LDADD = \
+  libtsmgmtshare.la \
+  libtsmgmt.la \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBTCL@ @OPENSSL_LIBS@
diff --git a/mgmt/api/Makefile.in b/mgmt/api/Makefile.in
new file mode 100644
index 00000000..50a57f8f
--- /dev/null
+++ b/mgmt/api/Makefile.in
@@ -0,0 +1,1167 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+
+
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+host_triplet = @host@
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+CONFIG_CLEAN_FILES =
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+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
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+  CoreAPI.cc \
+  EventControlMain.cc \
+  EventControlMain.h \
+  NetworkUtilsDefs.h \
+  NetworkUtilsLocal.cc \
+  NetworkUtilsLocal.h \
+  TSControlMain.cc \
+  TSControlMain.h
+
+lib_LTLIBRARIES = libtsmgmtshare.la libtsmgmt.la
+libtsmgmtshare_la_SOURCES = \
+  CfgContextImpl.cc \
+  CfgContextImpl.h \
+  CfgContextManager.cc \
+  CfgContextManager.h \
+  CfgContextUtils.cc \
+  CfgContextUtils.h \
+  CoreAPIShared.cc \
+  CoreAPIShared.h \
+  EventCallback.cc \
+  EventCallback.h \
+  GenericParser.cc \
+  GenericParser.h \
+  include/mgmtapi.h \
+  CoreAPI.h \
+  INKMgmtAPI.cc
+
+libtsmgmtshare_la_LDFLAGS = -version-info @TS_LIBTOOL_VERSION@
+libtsmgmt_la_LDFLAGS = -version-info @TS_LIBTOOL_VERSION@
+libtsmgmt_la_LIBADD = @LIBOBJS@ \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  libtsmgmtshare.la
+
+libtsmgmt_la_SOURCES = \
+  CoreAPIRemote.cc \
+  EventRegistration.cc \
+  EventRegistration.h \
+  NetworkUtilsRemote.cc \
+  NetworkUtilsRemote.h
+
+@BUILD_TESTS_TRUE@traffic_api_cli_remote_SOURCES = APITestCliRemote.cc
+traffic_api_cli_remote_LDADD = \
+  libtsmgmtshare.la \
+  libtsmgmt.la \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBTCL@ @OPENSSL_LIBS@
+
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+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign mgmt/api/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign mgmt/api/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
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+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
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+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libmgmtapilocal.a: $(libmgmtapilocal_a_OBJECTS) $(libmgmtapilocal_a_DEPENDENCIES) $(EXTRA_libmgmtapilocal_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libmgmtapilocal.a
+	$(AM_V_AR)$(libmgmtapilocal_a_AR) libmgmtapilocal.a $(libmgmtapilocal_a_OBJECTS) $(libmgmtapilocal_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libmgmtapilocal.a
+
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
+	}
+
+uninstall-libLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(libdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$f"; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+
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diff --git a/mgmt/api/NetworkUtilsDefs.h b/mgmt/api/NetworkUtilsDefs.h
new file mode 100644
index 00000000..bd94fdc4
--- /dev/null
+++ b/mgmt/api/NetworkUtilsDefs.h
@@ -0,0 +1,87 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ * NetworkUtilsDefs.h
+ *
+ * contains general definitions used by both NetworkUtilsRemote and
+ * NetworkUtilsLocal
+ *
+ *
+ ***************************************************************************/
+
+#ifndef _NETWORK_UTILS_DEFS_H_
+#define _NETWORK_UTILS_DEFS_H_
+
+#define REMOTE_DELIM ':'
+#define REMOTE_DELIM_STR ":"
+
+#define MAX_CONN_TRIES 10       // maximum number of attemps to reconnect to TM
+#define MAX_TIME_WAIT  60       // num secs for a timeout on a select call (remote only)
+
+// measure in bytes used in construcing network messages
+#define SIZE_OP_T     2         // num bytes used to specify OpType
+#define SIZE_FILE_T   2         // num bytes used to specify INKFileNameT
+#define SIZE_LEN      4         // max num bytes used to specify length of anything
+#define SIZE_ERR_T    2         // num bytes used to specify INKError return value
+#define SIZE_VER      2         // num bytes used to specify file version
+#define SIZE_REC_T    2         // num bytes used to specify INKRecordT
+#define SIZE_PROXY_T  2         // num bytes used to specify INKProxyStateT
+#define SIZE_TS_ARG_T 2         // num bytes used to specify INKCacheClearT
+#define SIZE_DIAGS_T  2         // num bytes used to specify INKDiagsT
+#define SIZE_BOOL     2
+#define SIZE_ACTION_T 2         // num bytes used to specify INKActionNeedT
+#define SIZE_EVENT_ID 2         // num bytes used to specify event_id
+
+
+// the possible operations or msg types sent from remote client to TM
+typedef enum
+{
+  FILE_READ,
+  FILE_WRITE,
+  RECORD_SET,
+  RECORD_GET,
+  PROXY_STATE_GET,
+  PROXY_STATE_SET,
+  RECONFIGURE,
+  RESTART,
+  BOUNCE,
+  EVENT_RESOLVE,
+  EVENT_GET_MLT,
+  EVENT_ACTIVE,
+  EVENT_REG_CALLBACK,
+  EVENT_UNREG_CALLBACK,
+  EVENT_NOTIFY,                 /* only msg sent from TM to client */
+  SNAPSHOT_TAKE,
+  SNAPSHOT_RESTORE,
+  SNAPSHOT_REMOVE,
+  SNAPSHOT_GET_MLT,
+  DIAGS,
+  STATS_RESET_NODE,
+  STATS_RESET_CLUSTER,
+  STORAGE_DEVICE_CMD_OFFLINE,
+  RECORD_MATCH_GET,
+  UNDEFINED_OP /* This must be last */
+} OpType;
+
+#endif
diff --git a/mgmt/api/NetworkUtilsLocal.cc b/mgmt/api/NetworkUtilsLocal.cc
new file mode 100644
index 00000000..0f57932e
--- /dev/null
+++ b/mgmt/api/NetworkUtilsLocal.cc
@@ -0,0 +1,775 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ * NetworkUtilsLocal.cc
+ *
+ * contains implementation of local networking utility functions, such as
+ * unmarshalling requests from a remote client and marshalling replies
+ *
+ *
+ ***************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_sock.h"
+#include "Diags.h"
+#include "MgmtUtils.h"
+#include "CoreAPIShared.h"
+#include "NetworkUtilsLocal.h"
+
+#ifndef MAX_BUF_SIZE
+#define MAX_BUF_SIZE 4096
+#endif
+
+/**************************************************************************
+ * socket_flush
+ *
+ * flushes the socket by reading the entire message out of the socket
+ * and then gets rid of the msg
+ **************************************************************************/
+TSMgmtError
+socket_flush(struct SocketInfo sock_info)
+{
+  int ret, byte_read = 0;
+  char buf[MAX_BUF_SIZE];
+
+  // check to see if anything to read; wait only for specified time
+  if (socket_read_timeout(sock_info.fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+  // read entire message
+  while (byte_read < MAX_BUF_SIZE) {
+
+    ret = socket_read(sock_info, buf + byte_read, MAX_BUF_SIZE - byte_read);
+
+    if (ret < 0) {
+      if (errno == EAGAIN)
+        continue;
+
+      Debug("ts_main", "[socket_read_n] socket read for version byte failed.\n");
+      mgmt_elog(0, "[socket_flush] (TS_ERR_NET_READ) %s\n", strerror(errno));
+      return TS_ERR_NET_READ;
+    }
+
+    if (ret == 0) {
+      Debug("ts_main", "[socket_read_n] returned 0 on reading: %s.\n", strerror(errno));
+      return TS_ERR_NET_EOF;
+    }
+    // we are all good here
+    byte_read += ret;
+  }
+
+  mgmt_elog(0, "[socket_flush] uh oh! didn't finish flushing socket!\n");
+  return TS_ERR_FAIL;
+}
+
+/**************************************************************************
+ * socket_read_n
+ *
+ * purpose: guarantees reading of n bytes or return error.
+ * input:   socket info struct, buffer to read into and number of bytes to read
+ * output:  number of bytes read
+ * note:    socket_read is implemented in WebUtils.cc
+ *************************************************************************/
+TSMgmtError
+socket_read_n(struct SocketInfo sock_info, char *buf, int bytes)
+{
+  int ret, byte_read = 0;
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(sock_info.fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+  // read until we fulfill the number
+  while (byte_read < bytes) {
+    ret = socket_read(sock_info, buf + byte_read, bytes - byte_read);
+
+    // error!
+    if (ret < 0) {
+      if (errno == EAGAIN)
+        continue;
+
+      Debug("ts_main", "[socket_read_n] socket read for version byte failed.\n");
+      mgmt_elog(0, "[socket_read_n] (TS_ERR_NET_READ) %s\n", strerror(errno));
+      return TS_ERR_NET_READ;
+    }
+
+    if (ret == 0) {
+      Debug("ts_main", "[socket_read_n] returned 0 on reading: %s.\n", strerror(errno));
+      return TS_ERR_NET_EOF;
+    }
+    // we are all good here
+    byte_read += ret;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/**************************************************************************
+ * socket_write_n
+ *
+ * purpose: guarantees writing of n bytes or return error
+ * input:   socket info struct, buffer to write from & number of bytes to write
+ * output:  TS_ERR_xx (depends on num bytes written)
+ * note:    socket_read is implemented in WebUtils.cc
+ *************************************************************************/
+TSMgmtError
+socket_write_n(struct SocketInfo sock_info, const char *buf, int bytes)
+{
+  int ret, byte_wrote = 0;
+
+  // makes sure the socket descriptor is writable
+  if (socket_write_timeout(sock_info.fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+  // read until we fulfill the number
+  while (byte_wrote < bytes) {
+    ret = socket_write(sock_info, buf + byte_wrote, bytes - byte_wrote);
+
+    if (ret < 0) {
+      Debug("ts_main", "[socket_write_n] return error %s \n", strerror(errno));
+      mgmt_elog(0, "[socket_write_n] %s\n", strerror(errno));
+      if (errno == EAGAIN)
+        continue;
+
+      return TS_ERR_NET_WRITE;
+    }
+
+    if (ret == 0) {
+      mgmt_elog(0, "[socket_write_n] %s\n", strerror(errno));
+      return TS_ERR_NET_EOF;
+    }
+    // we are all good here
+    byte_wrote += ret;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+
+/**********************************************************************
+ * preprocess_msg
+ *
+ * purpose: reads in all the message; parses the message into header info
+ *          (OpType + msg_len) and the request portion (used by the handle_xx fns)
+ * input: sock_info - socket msg is read from
+ *        op_t      - the operation type specified in the msg
+ *        msg       - the data from the network message (no OpType or msg_len)
+ * output: TS_ERR_xx ( if TS_ERR_OKAY, then parameters set successfully)
+ * notes: Since preprocess_msg already removes the OpType and msg_len, this part o
+ *        the message is not dealt with by the other parsing functions
+ **********************************************************************/
+TSMgmtError
+preprocess_msg(struct SocketInfo sock_info, OpType * op_t, char **req)
+{
+  TSMgmtError ret;
+  int req_len;
+  int16_t op;
+
+  // read operation type
+  ret = socket_read_n(sock_info, (char *) &op, SIZE_OP_T);
+  if (ret != TS_ERR_OKAY) {
+    Debug("ts_main", "[preprocess_msg] ERROR %d reading op type\n", ret);
+    goto Lerror;
+  }
+
+  Debug("ts_main", "[preprocess_msg] operation = %d", op);
+  *op_t = (OpType) op;          // convert to proper format
+
+  // check if invalid op type
+  if ((int) op > UNDEFINED_OP) {
+    mgmt_elog(0, "[preprocess_msg] ERROR: %d is invalid op type\n", op);
+
+    // need to flush the invalid message from the socket
+    if ((ret = socket_flush(sock_info)) != TS_ERR_NET_EOF)
+      mgmt_log("[preprocess_msg] unsuccessful socket flushing\n");
+    else
+      mgmt_log("[preprocess_msg] successfully flushed the socket\n");
+
+    goto Lerror;
+  }
+  // now read the request msg size
+  ret = socket_read_n(sock_info, (char *) &req_len, SIZE_LEN);
+  if (ret != TS_ERR_OKAY) {
+    mgmt_elog(0, "[preprocess_msg] ERROR %d reading msg size\n", ret);
+    Debug("ts_main", "[preprocess_msg] ERROR %d reading msg size\n", ret);
+    goto Lerror;
+  }
+
+  Debug("ts_main", "[preprocess_msg] length = %d\n", req_len);
+
+  // use req msg length to fetch the rest of the message
+  // first check that there is a "rest of the msg", some msgs just
+  // have the op specified
+  if (req_len == 0) {
+    *req = NULL;
+    Debug("ts_main", "[preprocess_msg] request message = NULL\n");
+  } else {
+    *req = (char *)ats_malloc(sizeof(char) * (req_len + 1));
+    ret = socket_read_n(sock_info, *req, req_len);
+    if (ret != TS_ERR_OKAY) {
+      ats_free(*req);
+      goto Lerror;
+    }
+    // add end of string to end of msg
+    (*req)[req_len] = '\0';
+    Debug("ts_main", "[preprocess_msg] request message = %s\n", *req);
+  }
+
+  return TS_ERR_OKAY;
+
+Lerror:
+  return ret;
+}
+
+
+/**********************************************************************
+ * Unmarshal Requests
+ **********************************************************************/
+
+/**********************************************************************
+ * parse_file_read_request
+ *
+ * purpose: parses a file read request from a remote API client
+ * input: req - data that needs to be parsed
+ *        file - the file type sent in the request
+ * output: TS_ERR_xx
+ * notes: request format = <TSFileNameT>
+ **********************************************************************/
+TSMgmtError
+parse_file_read_request(char *req, TSFileNameT * file)
+{
+  int16_t file_t;
+
+  if (!req || !file)
+    return TS_ERR_PARAMS;
+
+  // get file type - copy first 2 bytes of request
+  memcpy(&file_t, req, SIZE_FILE_T);
+  *file = (TSFileNameT) file_t;
+
+  return TS_ERR_OKAY;
+}
+
+/**********************************************************************
+ * parse_file_write_request
+ *
+ * purpose: parses a file write request from a remote API client
+ * input: socket info
+ *        file - the file type to write that was sent in the request
+ *        text - the text that needs to be written
+ *        size - length of the text
+ *        ver  - version of the file that is to be written
+ * output: TS_ERR_xx
+ * notes: request format = <TSFileNameT> <version> <size> <text>
+ **********************************************************************/
+TSMgmtError
+parse_file_write_request(char *req, TSFileNameT * file, int *ver, int *size, char **text)
+{
+  int16_t file_t, f_ver;
+  int32_t f_size;
+
+  // check input is non-NULL
+  if (!req || !file || !ver || !size || !text)
+    return TS_ERR_PARAMS;
+
+  // get file type - copy first 2 bytes of request
+  memcpy(&file_t, req, SIZE_FILE_T);
+  *file = (TSFileNameT) file_t;
+
+  // get file version - copy next 2 bytes
+  memcpy(&f_ver, req + SIZE_FILE_T, SIZE_VER);
+  *ver = (int) f_ver;
+
+  // get file size - copy next 4 bytes
+  memcpy(&f_size, req + SIZE_FILE_T + SIZE_VER, SIZE_LEN);
+  *size = (int) f_size;
+
+  // get file text
+  *text = (char *)ats_malloc(sizeof(char) * (f_size + 1));
+  memcpy(*text, req + SIZE_FILE_T + SIZE_VER + SIZE_LEN, f_size);
+  (*text)[f_size] = '\0';       // end buffer
+
+  return TS_ERR_OKAY;
+}
+
+/**********************************************************************
+ * parse_request_name_value
+ *
+ * purpose: parses a request w/ 2 args from a remote API client
+ * input: req - request info from requestor
+ *        name - first arg
+ *        val  - second arg
+ * output: TS_ERR_xx
+ * notes: format= <name_len> <val_len> <name> <val>
+ **********************************************************************/
+TSMgmtError
+parse_request_name_value(char *req, char **name_1, char **val_1)
+{
+  int32_t name_len, val_len;
+  char *name, *val;
+
+  if (!req || !name_1 || !val_1)
+    return TS_ERR_PARAMS;
+
+  // get record name length
+  memcpy(&name_len, req, SIZE_LEN);
+
+  // get record value length
+  memcpy(&val_len, req + SIZE_LEN, SIZE_LEN);
+
+  // get record name
+  name = (char *)ats_malloc(sizeof(char) * (name_len + 1));
+  memcpy(name, req + SIZE_LEN + SIZE_LEN, name_len);
+  name[name_len] = '\0';        // end string
+  *name_1 = name;
+
+  // get record value - can be a MgmtInt, MgmtCounter ...
+  val = (char *)ats_malloc(sizeof(char) * (val_len + 1));
+  memcpy(val, req + SIZE_LEN + SIZE_LEN + name_len, val_len);
+  val[val_len] = '\0';          // end string
+  *val_1 = val;
+
+  return TS_ERR_OKAY;
+}
+
+
+/**********************************************************************
+ * parse_diags_request
+ *
+ * purpose: parses a diags request
+ * input: diag_msg - the diag msg to be outputted
+ *        mode     - indicates what type of diag message
+ * output: TS_ERR_xx
+ * notes: request format = <TSDiagsT> <diag_msg_len> <diag_msg>
+ **********************************************************************/
+TSMgmtError
+parse_diags_request(char *req, TSDiagsT * mode, char **diag_msg)
+{
+  int16_t diag_t;
+  int32_t msg_len;
+
+  // check input is non-NULL
+  if (!req || !mode || !diag_msg)
+    return TS_ERR_PARAMS;
+
+  // get diags type - copy first 2 bytes of request
+  memcpy(&diag_t, req, SIZE_DIAGS_T);
+  *mode = (TSDiagsT) diag_t;
+
+  // get msg size - copy next 4 bytes
+  memcpy(&msg_len, req + SIZE_DIAGS_T, SIZE_LEN);
+
+  // get msg
+  *diag_msg = (char *)ats_malloc(sizeof(char) * (msg_len + 1));
+  memcpy(*diag_msg, req + SIZE_DIAGS_T + SIZE_LEN, msg_len);
+  (*diag_msg)[msg_len] = '\0';  // end buffer
+
+  return TS_ERR_OKAY;
+}
+
+/**********************************************************************
+ * parse_proxy_state_request
+ *
+ * purpose: parses a request to set the proxy state
+ * input: diag_msg - the diag msg to be outputted
+ *        mode     - indicates what type of diag message
+ * output: TS_ERR_xx
+ * notes: request format = <TSProxyStateT> <TSCacheClearT>
+ **********************************************************************/
+TSMgmtError
+parse_proxy_state_request(char *req, TSProxyStateT * state, TSCacheClearT * clear)
+{
+  int16_t state_t, cache_t;
+
+  // check input is non-NULL
+  if (!req || !state || !clear)
+    return TS_ERR_PARAMS;
+
+  // get proxy on/off
+  memcpy(&state_t, req, SIZE_PROXY_T);
+  *state = (TSProxyStateT) state_t;
+
+  // get cahce-clearing type
+  memcpy(&cache_t, req + SIZE_PROXY_T, SIZE_TS_ARG_T);
+  *clear = (TSCacheClearT) cache_t;
+
+  return TS_ERR_OKAY;
+}
+
+/**********************************************************************
+ * Marshal Replies
+ **********************************************************************/
+/* NOTE: if the send function "return"s before writing to the socket
+  then that means that an error occurred, and so the calling function
+  must send_reply with the error that occurred. */
+
+/**********************************************************************
+ * send_reply
+ *
+ * purpose: sends a simple TS_ERR_* reply to the request made
+ * input: return value - could be extended to support more complex
+ *        error codes but for now use only TS_ERR_FAIL, TS_ERR_OKAY
+ *        int fd - socket fd to use.
+ * output: TS_ERR_*
+ * notes: this function does not need to go through the internal structure
+ *        so no cleaning up is done.
+ **********************************************************************/
+TSMgmtError
+send_reply(struct SocketInfo sock_info, TSMgmtError retval)
+{
+  TSMgmtError ret;
+  char msg[SIZE_ERR_T];
+  int16_t ret_val;
+
+  // write the return value
+  ret_val = (int16_t) retval;
+  memcpy(msg, (void *) &ret_val, SIZE_ERR_T);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, SIZE_ERR_T);
+
+  return ret;
+}
+
+/**********************************************************************
+ * send_reply_list
+ *
+ * purpose: sends the reply in response to a request to get list of string
+ *          tokens (delimited by REMOTE_DELIM_STR)
+ * input: sock_info -
+ *        retval - TSMgmtError return type for the CoreAPI call
+ *        list - string delimited list of string tokens
+ * output: TS_ERR_*
+ * notes:
+ * format: <TSMgmtError> <string_list_len> <delimited_string_list>
+ **********************************************************************/
+TSMgmtError
+send_reply_list(struct SocketInfo sock_info, TSMgmtError retval, char *list)
+{
+  TSMgmtError ret;
+  int msg_pos = 0, total_len;
+  char *msg;
+  int16_t ret_val;
+  int32_t list_size;              // to be safe, typecast
+
+  if (!list) {
+    return TS_ERR_PARAMS;
+  }
+
+  total_len = SIZE_ERR_T + SIZE_LEN + strlen(list);
+  msg = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // write the return value
+  ret_val = (int16_t) retval;
+  memcpy(msg, (void *) &ret_val, SIZE_ERR_T);
+  msg_pos += SIZE_ERR_T;
+
+  // write the length of the string list
+  list_size = (int32_t) strlen(list);
+  memcpy(msg + msg_pos, (void *) &list_size, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // write the event string list
+  memcpy(msg + msg_pos, list, list_size);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, total_len);
+  ats_free(msg);
+
+  return ret;
+}
+
+
+/**********************************************************************
+ * send_record_get_reply
+ *
+ * purpose: sends reply to the record_get request made
+ * input: retval   - result of the record get request
+ *        int fd   - socket fd to use.
+ *        val      - the value of the record requested
+ *        val_size - num bytes the value occupies
+ *        rec_type - the type of the record value requested
+ * output: TS_ERR_*
+ * notes: this function does not need to go through the internal structure
+ *        so no cleaning up is done.
+ *        format = <TSMgmtError> <rec_val_len> <name_size> <rec_type> <rec_val> <rec_name>
+ **********************************************************************/
+TSMgmtError
+send_record_get_reply(struct SocketInfo sock_info, TSMgmtError retval, void *val, int val_size,
+    TSRecordT rec_type, const char *rec_name)
+{
+  TSMgmtError ret;
+  int msg_pos = 0, total_len;
+  char *msg;
+  int16_t record_t, ret_val;
+  int32_t v_size = (int32_t) val_size; // to be safe, typecast
+  int32_t n_size = rec_name ? (int32_t)strlen(rec_name) : 0;
+
+  total_len = SIZE_ERR_T + SIZE_LEN + SIZE_LEN + SIZE_REC_T + v_size + n_size;
+  msg = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // write the return value
+  ret_val = (int16_t) retval;
+  memcpy(msg, (void *) &ret_val, SIZE_ERR_T);
+  msg_pos += SIZE_ERR_T;
+
+  // write the size of the record value
+  memcpy(msg + msg_pos, (void *) &v_size, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // write the size of the record name
+  memcpy(msg + msg_pos, (void *) &n_size, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // write the record type
+  record_t = (int16_t) rec_type;
+  memcpy(msg + msg_pos, (void *) &record_t, SIZE_REC_T);
+  msg_pos += SIZE_REC_T;
+
+  // write the record value
+  if (v_size) {
+    memcpy(msg + msg_pos, val, v_size);
+    msg_pos += v_size;
+  }
+
+  // write the record name
+  if (n_size) {
+    memcpy(msg + msg_pos, rec_name, n_size);
+    msg_pos += n_size;
+  }
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, total_len);
+  ats_free(msg);
+
+  return ret;
+}
+
+/**********************************************************************
+ * send_record_set_reply
+ *
+ * purpose: sends reply to the record_set request made
+ * input:
+ * output: TS_ERR_*
+ * notes: this function does not need to go through the internal structure
+ *        so no cleaning up is done.
+ *        format =
+ **********************************************************************/
+TSMgmtError
+send_record_set_reply(struct SocketInfo sock_info, TSMgmtError retval, TSActionNeedT action_need)
+{
+  TSMgmtError ret;
+  int total_len;
+  char *msg;
+  int16_t action_t, ret_val;
+
+  total_len = SIZE_ERR_T + SIZE_ACTION_T;
+  msg = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // write the return value
+  ret_val = (int16_t) retval;
+  memcpy(msg, (void *) &ret_val, SIZE_ERR_T);
+
+  // write the action needed
+  action_t = (int16_t) action_need;
+  memcpy(msg + SIZE_ERR_T, (void *) &action_t, SIZE_ACTION_T);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, total_len);
+  ats_free(msg);
+
+  return ret;
+}
+
+
+/**********************************************************************
+ * send_file_read_reply
+ *
+ * purpose: sends the reply in response to a file read request
+ * input: return value - could be extended to support more complex
+ *        error codes but for now use only TS_ERR_FAIL, TS_ERR_OKAY
+ *        int fd - socket fd to use.
+ * output: TS_ERR_*
+ * notes: this function does not need to go through the internal structure
+ *        so no cleaning up is done.
+ *        reply format = <TSMgmtError> <file_ver> <file_size> <file_text>
+ **********************************************************************/
+TSMgmtError
+send_file_read_reply(struct SocketInfo sock_info, TSMgmtError retval, int ver, int size, char *text)
+{
+  TSMgmtError ret;
+  int msg_pos = 0, msg_len;
+  char *msg;
+  int16_t ret_val, f_ver;
+  int32_t f_size;                 // to be safe
+
+  if (!text)
+    return TS_ERR_PARAMS;
+
+  // allocate space for buffer
+  msg_len = SIZE_ERR_T + SIZE_VER + SIZE_LEN + size;
+  msg = (char *)ats_malloc(sizeof(char) * msg_len);
+
+  // write the return value
+  ret_val = (int16_t) retval;
+  memcpy(msg, (void *) &ret_val, SIZE_ERR_T);
+  msg_pos += SIZE_ERR_T;
+
+  // write file version
+  f_ver = (int16_t) ver;
+  memcpy(msg + msg_pos, (void *) &f_ver, SIZE_VER);
+  msg_pos += SIZE_VER;
+
+  // write file size
+  f_size = (int32_t) size;
+  memcpy(msg + msg_pos, (void *) &f_size, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // write the file text
+  memcpy(msg + msg_pos, text, size);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, msg_len);
+  ats_free(msg);
+
+  return ret;
+}
+
+
+/**********************************************************************
+ * send_proxy_state_get_reply
+ *
+ * purpose: sends the reply in response to a request to get state of proxy
+ * input:
+ *        int fd - socket fd to use.
+ * output: TS_ERR_*
+ * notes: this function DOES NOT HAVE IT"S OWN TSMgmtError TO SEND!!!!
+ *        reply format = <TSProxyStateT>
+ **********************************************************************/
+TSMgmtError
+send_proxy_state_get_reply(struct SocketInfo sock_info, TSProxyStateT state)
+{
+  TSMgmtError ret;
+  char msg[SIZE_PROXY_T];
+  int16_t state_t;
+
+  // write the state
+  state_t = (int16_t) state;
+  memcpy(msg, (void *) &state_t, SIZE_PROXY_T);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, SIZE_PROXY_T);
+
+  return ret;
+}
+
+
+/**********************************************************************
+ * send_event_active_reply
+ *
+ * purpose: sends the reply in response to a request check if event is active
+ * input: sock_info -
+ *        retval - TSMgmtError return type for the EventIsActive core call
+ *        active - is the requested event active or not?
+ * output: TS_ERR_*
+ * notes:
+ * format: <TSMgmtError> <bool>
+ **********************************************************************/
+TSMgmtError
+send_event_active_reply(struct SocketInfo sock_info, TSMgmtError retval, bool active)
+{
+  TSMgmtError ret;
+  int total_len;
+  char *msg;
+  int16_t is_active, ret_val;
+
+  total_len = SIZE_ERR_T + SIZE_BOOL;
+  msg = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // write the return value
+  ret_val = (int16_t) retval;
+  memcpy(msg, (void *) &ret_val, SIZE_ERR_T);
+
+  // write the boolean active state
+  is_active = (int16_t) active;
+  memcpy(msg + SIZE_ERR_T, (void *) &is_active, SIZE_BOOL);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, total_len);
+  ats_free(msg);
+
+  return ret;
+}
+
+/**********************************************************************
+ * send_event_notification
+ *
+ * purpose: sends to the client a msg indicating that a certain event
+ *          has occurred (this msg will be received by the event_poll_thread)
+ * input: fd - file descriptor to use for writing
+ *        event - the event that was signalled on TM side
+ * output: TS_ERR_xx
+ * note: format: <OpType> <event_name_len> <event_name> <desc_len> <desc>
+ **********************************************************************/
+TSMgmtError
+send_event_notification(struct SocketInfo sock_info, TSMgmtEvent * event)
+{
+  TSMgmtError ret;
+  int total_len, name_len, desc_len;
+  char *msg;
+  int16_t op_t;
+  int32_t len;
+
+  if (!event || !event->name || !event->description)
+    return TS_ERR_PARAMS;
+
+  name_len = strlen(event->name);
+  desc_len = strlen(event->description);
+  total_len = SIZE_OP_T + (SIZE_LEN * 2) + name_len + desc_len;
+  msg = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // write the operation
+  op_t = (int16_t) EVENT_NOTIFY;
+  memcpy(msg, (void *) &op_t, SIZE_OP_T);
+
+  // write the size of the event name
+  len = (int32_t) name_len;
+  memcpy(msg + SIZE_OP_T, (void *) &len, SIZE_LEN);
+
+  // write the event name
+  memcpy(msg + SIZE_OP_T + SIZE_LEN, event->name, name_len);
+
+  // write size of description
+  len = (int32_t) desc_len;
+  memcpy(msg + SIZE_OP_T + SIZE_LEN + name_len, (void *) &len, SIZE_LEN);
+
+  // write the description
+  memcpy(msg + SIZE_OP_T + SIZE_LEN + name_len + SIZE_LEN, event->description, desc_len);
+
+  // now push it to the socket
+  ret = socket_write_n(sock_info, msg, total_len);
+  ats_free(msg);
+
+  return ret;
+}
diff --git a/mgmt/api/NetworkUtilsLocal.h b/mgmt/api/NetworkUtilsLocal.h
new file mode 100644
index 00000000..b2d75f40
--- /dev/null
+++ b/mgmt/api/NetworkUtilsLocal.h
@@ -0,0 +1,81 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ * NetworkUtils.h
+ *
+ * Defines interface for marshalling requests and unmarshalling responses
+ * between the remote API client and Traffic Manager
+ *
+ *
+ ***************************************************************************/
+
+/*****************************************************************************
+ * NetworkUtils.h
+ *
+ * Defines interface for marshalling requests and unmarshalling responses
+ * between the remote API client and Traffic Manager
+ *****************************************************************************/
+
+#ifndef _NETWORK_UTILS_H_
+#define _NETWORK_UTILS_H_
+
+#include "ink_defs.h"
+#include "WebUtils.h"           // for SocketInfo, socket_read, socket_write
+
+#include "mgmtapi.h"
+#include "NetworkUtilsDefs.h"
+
+/*****************************************************************************
+ * general socket functions
+ *****************************************************************************/
+TSMgmtError socket_flush(struct SocketInfo sock_info);
+TSMgmtError socket_read_n(struct SocketInfo sock_info, char *buf, int bytes);
+TSMgmtError socket_write_n(struct SocketInfo sock_info, const char *buf, int bytes);
+
+/*****************************************************************************
+ * Unmarshalling/marshalling
+ *****************************************************************************/
+TSMgmtError preprocess_msg(struct SocketInfo sock_info, OpType * op_t, char **msg);
+
+TSMgmtError parse_request_name_value(char *req, char **name, char **val);
+TSMgmtError parse_record_get_request(char *req, char **rec_name);
+TSMgmtError parse_file_read_request(char *req, TSFileNameT * file);
+TSMgmtError parse_file_write_request(char *req, TSFileNameT * file, int *ver, int *size, char **text);
+TSMgmtError parse_diags_request(char *req, TSDiagsT * mode, char **diag_msg);
+TSMgmtError parse_proxy_state_request(char *req, TSProxyStateT * state, TSCacheClearT * clear);
+
+TSMgmtError send_reply(struct SocketInfo sock_info, TSMgmtError retval);
+TSMgmtError send_reply_list(struct SocketInfo sock_info, TSMgmtError retval, char *list);
+
+TSMgmtError send_record_get_reply(struct SocketInfo sock_info, TSMgmtError retval, void *val, int val_size,
+                               TSRecordT rec_type, const char *rec_name);
+TSMgmtError send_record_set_reply(struct SocketInfo sock_info, TSMgmtError retval, TSActionNeedT action_need);
+TSMgmtError send_file_read_reply(struct SocketInfo sock_info, TSMgmtError retval, int ver, int size, char *text);
+TSMgmtError send_proxy_state_get_reply(struct SocketInfo sock_info, TSProxyStateT state);
+
+TSMgmtError send_event_active_reply(struct SocketInfo sock_info, TSMgmtError retval, bool active);
+
+TSMgmtError send_event_notification(struct SocketInfo sock_info, TSMgmtEvent * event);
+
+#endif
diff --git a/mgmt/api/NetworkUtilsRemote.cc b/mgmt/api/NetworkUtilsRemote.cc
new file mode 100644
index 00000000..b0038dae
--- /dev/null
+++ b/mgmt/api/NetworkUtilsRemote.cc
@@ -0,0 +1,1559 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: NetworkUtilsRemote.cc
+ * Purpose: This file contains functions used by remote api client to
+ *          marshal requests to TM and unmarshal replies from TM.
+ *          Also stores the information about the client's current
+ *          socket connection to Traffic Manager
+ * Created: 8/9/00
+ *
+ *
+ ***************************************************************************/
+
+#include "ink_config.h"
+#include "ink_defs.h"
+#include "ink_sock.h"
+#include "ink_string.h"
+#include "ink_memory.h"
+#include "I_Layout.h"
+#include "NetworkUtilsRemote.h"
+#include "CoreAPI.h"
+#include "CoreAPIShared.h"
+#include "EventRegistration.h"
+#include "MgmtSocket.h"
+
+extern CallbackTable *remote_event_callbacks;
+
+int main_socket_fd = -1;
+int event_socket_fd = -1;
+
+// need to store for reconnecting scenario
+char *main_socket_path = NULL;  // "<path>/mgmtapisocket"
+char *event_socket_path = NULL; // "<path>/eventapisocket"
+
+// From CoreAPIRemote.cc
+extern ink_thread ts_test_thread;
+extern ink_thread ts_event_thread;
+extern TSInitOptionT ts_init_options;
+
+
+/**********************************************************************
+ * Socket Helper Functions
+ **********************************************************************/
+void
+set_socket_paths(const char *path)
+{
+  // free previously set paths if needed
+  ats_free(main_socket_path);
+  ats_free(event_socket_path);
+
+  // construct paths based on user input
+  // form by replacing "mgmtapisocket" with "eventapisocket"
+  if (path) {
+    main_socket_path = Layout::relative_to(path, "mgmtapisocket");
+    event_socket_path = Layout::relative_to(path, "eventapisocket");
+  } else {
+    main_socket_path = NULL;
+    event_socket_path = NULL;
+  }
+
+  return;
+}
+
+/**********************************************************************
+ * socket_test
+ *
+ * purpose: performs socket write to check status of other end of connection
+ * input: None
+ * output: return   0 if other end of connection closed;
+ *         return < 0 if socket write failed due to some other error
+ *         return > 0 if socket write successful
+ * notes: send the test msg: UNDEFINED_OP 0(=msg_len)
+ **********************************************************************/
+int
+socket_test(int fd)
+{
+  char msg[6];                  /* 6 = SIZE_OP + SIZE_LEN */
+  int16_t op;
+  int32_t msg_len = 0;
+  int ret, amount_read = 0;
+
+  // write the op
+  op = (int16_t) UNDEFINED_OP;
+  memcpy(msg, (void *) &op, SIZE_OP_T);
+
+  // write msg-len = 0
+  memcpy(msg + SIZE_OP_T, &msg_len, SIZE_LEN);
+
+  while (amount_read < 6) {
+    ret = write(fd, msg + amount_read, 6 - amount_read);
+    if (ret < 0) {
+      if (errno == EAGAIN)
+        continue;
+
+      if (errno == EPIPE || errno == ENOTCONN) {        // other socket end is closed
+        return 0;
+      }
+
+      return -1;
+    }
+    amount_read += ret;
+  }
+
+  return 1;                     // write was successful; connection still open
+}
+
+
+/***************************************************************************
+ * connect
+ *
+ * purpose: connects to the port on traffic server that listens to mgmt
+ *          requests & issues out responses and alerts
+ * 1) create and set the client socket_fd; connect to TM
+ * 2) create and set the client's event_socket_fd; connect to TM
+ * output: TS_ERR_OKAY          - if both sockets sucessfully connect to TM
+ *         TS_ERR_NET_ESTABLISH - at least one unsuccessful connection
+ * notes: If connection breaks it is responsibility of client to reconnect
+ *        otherwise traffic server will assume mgmt stopped request and
+ *        goes back to just sitting and listening for connection.
+ ***************************************************************************/
+TSMgmtError
+ts_connect()
+{
+  struct sockaddr_un client_sock;
+  struct sockaddr_un client_event_sock;
+
+  int sockaddr_len;
+
+  // make sure a socket path is set up
+  if (!main_socket_path || !event_socket_path)
+    goto ERROR;
+
+  // create a socket
+  main_socket_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+  if (main_socket_fd < 0) {
+    //fprintf(stderr, "[connect] ERROR: can't open socket\n");
+    goto ERROR;                 // ERROR - can't open socket
+  }
+  // setup Unix domain socket
+  memset(&client_sock, 0, sizeof(sockaddr_un));
+  client_sock.sun_family = AF_UNIX;
+  ink_strlcpy(client_sock.sun_path, main_socket_path, sizeof(client_sock.sun_path));
+#if defined(darwin) || defined(freebsd)
+  sockaddr_len = sizeof(sockaddr_un);
+#else
+  sockaddr_len = sizeof(client_sock.sun_family) + strlen(client_sock.sun_path);
+#endif
+  // connect call
+  if (connect(main_socket_fd, (struct sockaddr *) &client_sock, sockaddr_len) < 0) {
+    fprintf(stderr, "[connect] ERROR (main_socket_fd %d): %s\n", main_socket_fd, strerror(int(errno)));
+    close(main_socket_fd);
+    main_socket_fd = -1;
+    goto ERROR;                 //connection is down
+  }
+  // -------- set up the event socket ------------------
+  // create a socket
+  event_socket_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+  if (event_socket_fd < 0) {
+    //fprintf(stderr, "[connect] ERROR: can't open event socket\n");
+    close(main_socket_fd);      // close the other socket too!
+    main_socket_fd = -1;
+    goto ERROR;                 // ERROR - can't open socket
+  }
+  // setup Unix domain socket
+  memset(&client_event_sock, 0, sizeof(sockaddr_un));
+  client_event_sock.sun_family = AF_UNIX;
+  ink_strlcpy(client_event_sock.sun_path, event_socket_path, sizeof(client_sock.sun_path));
+#if defined(darwin) || defined(freebsd)
+  sockaddr_len = sizeof(sockaddr_un);
+#else
+  sockaddr_len = sizeof(client_event_sock.sun_family) + strlen(client_event_sock.sun_path);
+#endif
+  // connect call
+  if (connect(event_socket_fd, (struct sockaddr *) &client_event_sock, sockaddr_len) < 0) {
+    //fprintf(stderr, "[connect] ERROR (event_socket_fd %d): %s\n", event_socket_fd, strerror(int(errno)));
+    close(event_socket_fd);
+    close(main_socket_fd);
+    event_socket_fd = -1;
+    main_socket_fd = -1;
+    goto ERROR;                 //connection is down
+  }
+
+  return TS_ERR_OKAY;
+
+ERROR:
+  return TS_ERR_NET_ESTABLISH;
+}
+
+/***************************************************************************
+ * disconnect
+ *
+ * purpose: disconnect from traffic server; closes sockets and resets their values
+ * input: None
+ * output: TS_ERR_FAIL, TS_ERR_OKAY
+ * notes: doesn't do clean up - all cleanup should be done before here
+ ***************************************************************************/
+TSMgmtError
+disconnect()
+{
+  int ret;
+
+  if (main_socket_fd > 0) {
+    ret = close(main_socket_fd);
+    main_socket_fd = -1;
+    if (ret < 0)
+      return TS_ERR_FAIL;
+  }
+
+  if (event_socket_fd > 0) {
+    ret = close(event_socket_fd);
+    event_socket_fd = -1;
+    if (ret < 0)
+      return TS_ERR_FAIL;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/***************************************************************************
+ * reconnect
+ *
+ * purpose: reconnects to TM (eg. when TM restarts); does all the necesarry
+ *          set up for reconnection
+ * input: None
+ * output: TS_ERR_FAIL, TS_ERR_OKAY
+ * notes: necessarry events for a new client-TM connection:
+ * 1) get new socket_fd using old socket_path by calling connect()
+ * 2) relaunch event_poll_thread_main with new socket_fd
+ * 3) re-notify TM of all the client's registered callbacks by send msg
+ ***************************************************************************/
+TSMgmtError
+reconnect()
+{
+  TSMgmtError err;
+
+  err = disconnect();
+  if (err != TS_ERR_OKAY)      // problem disconnecting
+    return err;
+
+  // use the socket_path that was called by remote client on first init
+  // use connect instead of TSInit() b/c if TM restarted, client-side tables
+  // would be recreated; just want to reconnect to same socket_path
+  err = ts_connect();
+  if (err != TS_ERR_OKAY)      // problem establishing connection
+    return err;
+
+  // relaunch a new event thread since socket_fd changed
+  if (0 == (ts_init_options & TS_MGMT_OPT_NO_EVENTS)) {
+    ts_event_thread = ink_thread_create(event_poll_thread_main, &event_socket_fd, 0, DEFAULT_STACK_SIZE);
+    // reregister the callbacks on the TM side for this new client connection
+    if (remote_event_callbacks) {
+      err = send_register_all_callbacks(event_socket_fd, remote_event_callbacks);
+      if (err != TS_ERR_OKAY)      // problem establishing connection
+        return err;
+    }
+  } else {
+    ts_event_thread = static_cast<ink_thread>(NULL);
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/***************************************************************************
+ * reconnect_loop
+ *
+ * purpose: attempts to reconnect to TM (eg. when TM restarts) for the
+ *          specified number of times
+ * input:  num_attempts - number of reconnection attempts to try before quit
+ * output: TS_ERR_OKAY - if successfully reconnected within num_attempts
+ *         TS_ERR_xx - the reason the reconnection failed
+ * notes:
+ ***************************************************************************/
+TSMgmtError
+reconnect_loop(int num_attempts)
+{
+  int numTries = 0;
+  TSMgmtError err = TS_ERR_FAIL;
+
+  while (numTries < num_attempts) {
+    numTries++;
+    err = reconnect();
+    if (err == TS_ERR_OKAY) {
+      //fprintf(stderr, "[reconnect_loop] Successful reconnction; Leave loop\n");
+      return TS_ERR_OKAY;      // successful connection
+    }
+    sleep(1);                   // to make it slower
+  }
+
+  //fprintf(stderr, "[reconnect_loop] FAIL TO CONNECT after %d tries\n", num_attempts);
+  return err;                   // unsuccessful connection after num_attempts
+}
+
+/*************************************************************************
+ * connect_and_send
+ *
+ * purpose:
+ * When sending a request, it's possible that the user had restarted
+ * Traffic Manager. This means that the connection between TM and
+ * the remote client has been broken, so the client needs to re-"connect"
+ * to Traffic Manager. So, after "writing" to the socket in each
+ * "send_xx_request" function, need to check if the TM socket has
+ * been closed or not; the "write" function's errno will indicate if
+ * the other end of the socket has been closed or not. If it is closed,
+ * then need to try to re"connect", then resend the message request if
+ * the "connect" was successful.
+ * 1) try connect()
+ * 2) if connect() success, then resend the request.
+ * output: TS_ERR_NET_xx - connection problem or TS_ERR_OKAY
+ * notes:
+ * This function is basically called by the special "socket_write_conn" fn
+ * which will call this fn if it tries to write to the socket and discovers
+ * the local end of the socket is closed
+ * Warning: system also sends a SIGPIPE error when try to write to socket
+ * which is not open; which will by default terminate the process;
+ * client needs to "ignore" the SIGPIPE signal
+ **************************************************************************/
+TSMgmtError
+connect_and_send(const char *msg, int msg_len)
+{
+  TSMgmtError err;
+  int total_wrote = 0, ret;
+
+  // connects to TM and does all necessary event updates required
+  err = reconnect();
+  if (err != TS_ERR_OKAY)
+    return err;
+
+  // makes sure the descriptor is writable
+  if (socket_write_timeout(main_socket_fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+  // connection successfully established; resend msg
+  // socket_fd should be new fd
+  while (total_wrote < msg_len) {
+    ret = write(main_socket_fd, msg + total_wrote, msg_len - total_wrote);
+
+    if (ret == 0) {
+      return TS_ERR_NET_EOF;
+    }
+
+    if (ret < 0) {
+      if (errno == EAGAIN)
+        continue;
+      else if (errno == EPIPE || errno == ENOTCONN) {
+        // clean-up sockets
+        close(main_socket_fd);
+        close(event_socket_fd);
+        main_socket_fd = -1;
+        event_socket_fd = -1;
+
+        return TS_ERR_NET_ESTABLISH;   // can't establish connection
+
+      } else
+        return TS_ERR_NET_WRITE;       // general socket writing error
+
+    }
+
+    total_wrote += ret;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+static TSMgmtError
+socket_read_conn(int fd, uint8_t * buf, size_t needed)
+{
+  size_t consumed = 0;
+  ssize_t ret;
+
+  while (needed > consumed) {
+    ret = read(fd, buf, needed - consumed);
+
+    if (ret < 0) {
+      if (errno == EAGAIN) {
+        continue;
+      } else {
+        return TS_ERR_NET_READ;
+      }
+    }
+
+    if (ret == 0) {
+      return TS_ERR_NET_EOF;
+    }
+
+    buf += ret;
+    consumed += ret;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/**************************************************************************
+ * socket_write_conn
+ *
+ * purpose: guarantees writing of n bytes; if connection error, tries
+ *          reconnecting to TM again (in case TM was restarted)
+ * input:   fd to write to, buffer to write from & number of bytes to write
+ * output:  TS_ERR_xx
+ * note:   EPIPE - this happens if client makes a call after stopping then
+ *         starting TM again.
+ *         ENOTCONN - this happens if the client tries to make a call after
+ *         stopping TM, but before starting it; then restarts TM and makes a
+ *          new call
+ * In the send_xx_request function, use a special socket writing function
+ * which calls connect_and_send() instead of just the basic connect():
+ * 1) if the write returns EPIPE error, then call connect_and_send()
+ * 2) return the value returned from EPIPE
+ *************************************************************************/
+static TSMgmtError
+socket_write_conn(int fd, const char *msg_buf, int bytes)
+{
+  int ret, byte_wrote = 0;
+
+  // makes sure the descriptor is writable
+  if (socket_write_timeout(fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+  // write until we fulfill the number
+  while (byte_wrote < bytes) {
+    ret = write(fd, msg_buf + byte_wrote, bytes - byte_wrote);
+
+    if (ret == 0) {
+      return TS_ERR_NET_EOF;
+    }
+
+    if (ret < 0) {
+      if (errno == EAGAIN)
+        continue;
+
+      else if (errno == EPIPE || errno == ENOTCONN) {   // other socket end is closed
+        // clean-up of sockets is done in reconnect()
+        return connect_and_send(msg_buf, bytes);
+      } else
+        return TS_ERR_NET_WRITE;
+    }
+    // we are all good here
+    byte_wrote += ret;
+  }
+
+  return TS_ERR_OKAY;
+}
+
+/**********************************************************************
+ * socket_test_thread
+ *
+ * purpose: continually polls to check if local end of socket connection
+ *          is still open; this thread is created when the client calls
+ *          Init() to initialize the API; and will not
+ *          die until the client process dies
+ * input: none
+ * output: if other end is closed, it reconnects to TM
+ * notes: uses the current main_socket_fd because the main_socket_fd could be
+ *        in flux; basically it is possible that the client will reconnect
+ *        from some other call, thus making the main_socket_fd actually
+ *        valid when socket_test is called
+ * reason: decided to create this "watcher" thread for the socket
+ *         connection because if TM is restarted or the client process
+ *         is started before the TM process, then the client will not
+ *         be able to receive any event notifications until a "request"
+ *         is issued. In order to prevent losing an event notifications
+ *         that are called in between the time TM is restarted and
+ *         client issues a first request, we just run this thread which
+ *         will try to reconnect to TM if it is not already connected
+ **********************************************************************/
+void *
+socket_test_thread(void *)
+{
+  // loop until client process dies
+  while (1) {
+    if (main_socket_fd == -1 || socket_test(main_socket_fd) <= 0) {
+      // ASSUMES that in between the time the socket_test is made
+      // and this reconnect call is made, the main_socket_fd remains
+      // the same (eg. no one else called reconnect to TM successfully!!
+      // WHAT IF in between this time, the client had issued a request
+      // calling socket_write_conn which then calls reconnect(); then
+      // reconnect will return an "ALREADY CONNECTED" error when it
+      // tries to connect, and on the next loop iteration, the socket_test
+      // will actually pass because main_socket_fd is valid!!
+      if (reconnect() == TS_ERR_OKAY) {
+        //fprintf(stderr, "[socket_test_thread] reconnect succeeds\n");
+      }
+    }
+
+    sleep(5);
+  }
+
+  ink_thread_exit(NULL);
+  return NULL;
+}
+
+/**********************************************************************
+ * MARSHALL REQUESTS
+ **********************************************************************/
+/**********************************************************************
+ * send_request
+ *
+ * purpose: sends file read request to Traffic Manager
+ * input:   fd - file descriptor to use to send to
+ *          op - the type of OpType request sending
+ * output:  TS_ERR_xx
+ * notes:  used by operations which don't need to send any additional
+ *         parameters
+ * format: <OpType> <msg_len=0>
+ **********************************************************************/
+TSMgmtError
+send_request(int fd, OpType op)
+{
+  int16_t op_t;
+  int32_t msg_len;
+  char msg_buf[SIZE_OP_T + SIZE_LEN];
+  TSMgmtError err;
+
+  // fill in op type
+  op_t = (int16_t) op;
+  memcpy(msg_buf, &op_t, SIZE_OP_T);
+
+  // fill in msg_len == 0
+  msg_len = 0;
+  memcpy(msg_buf + SIZE_OP_T, &msg_len, SIZE_LEN);
+
+  // send message
+  err = socket_write_conn(fd, msg_buf, SIZE_OP_T + SIZE_LEN);
+  return err;
+}
+
+/**********************************************************************
+ * send_request_name (helper fn)
+ *
+ * purpose: sends generic  request with one string argument name
+ * input: fd - file descriptor to use
+ *        op - .
+ * output: TS_ERR_xx
+ * note: format: <OpType> <str_len> <string>
+ **********************************************************************/
+TSMgmtError
+send_request_name(int fd, OpType op, const char *name)
+{
+  char *msg_buf;
+  int16_t op_t;
+  int32_t msg_len;
+  int total_len;
+  TSMgmtError err;
+
+  if (name == NULL) {           //reg callback for all events when op==EVENT_REG_CALLBACK
+    msg_len = 0;
+  } else {
+    msg_len = (int32_t) strlen(name);
+  }
+
+  total_len = SIZE_OP_T + SIZE_LEN + msg_len;
+  msg_buf = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // fill in op type
+  op_t = (int16_t) op;
+  memcpy(msg_buf, (void *) &op_t, SIZE_OP_T);
+
+  // fill in msg_len
+  memcpy(msg_buf + SIZE_OP_T, (void *) &msg_len, SIZE_LEN);
+
+  // fill in name (if NOT NULL)
+  if (name)
+    memcpy(msg_buf + SIZE_OP_T + SIZE_LEN, name, msg_len);
+
+
+  // send message
+  err = socket_write_conn(fd, msg_buf, total_len);
+  ats_free(msg_buf);
+  return err;
+}
+
+/**********************************************************************
+ * send_request_name_value (helper fn)
+ *
+ * purpose: sends generic request with 2 str arguments; a name-value pair
+ * input: fd - file descriptor to use
+ *        op - Op type
+ * output: TS_ERR_xx
+ * note: format: <OpType> <name-len> <val-len> <name> <val>
+ **********************************************************************/
+TSMgmtError
+send_request_name_value(int fd, OpType op, const char *name, const char *value)
+{
+  char *msg_buf;
+  int msg_pos = 0, total_len;
+  int32_t msg_len, name_len, val_size;    // these are written to msg
+  int16_t op_t;
+  TSMgmtError err;
+
+  if (!name || !value)
+    return TS_ERR_PARAMS;
+
+  // set the sizes
+  name_len = strlen(name);
+  val_size = strlen(value);
+  msg_len = (SIZE_LEN * 2) + name_len + val_size;
+  total_len = SIZE_OP_T + SIZE_LEN + msg_len;
+  msg_buf = (char *)ats_malloc(sizeof(char) * (total_len));
+
+  // fill in op type
+  op_t = (int16_t) op;
+  memcpy(msg_buf + msg_pos, (void *) &op_t, SIZE_OP_T);
+  msg_pos += SIZE_OP_T;
+
+  // fill in msg length
+  memcpy(msg_buf + msg_pos, (void *) &msg_len, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in record name length
+  memcpy(msg_buf + msg_pos, (void *) &name_len, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in record value length
+  memcpy(msg_buf + msg_pos, (void *) &val_size, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in record name
+  memcpy(msg_buf + msg_pos, name, name_len);
+  msg_pos += name_len;
+
+  // fill in record value
+  memcpy(msg_buf + msg_pos, value, val_size);
+
+  // send message
+  err = socket_write_conn(fd, msg_buf, total_len);
+  ats_free(msg_buf);
+  return err;
+}
+
+/**********************************************************************
+ * send_request_bool (helper)
+ *
+ * purpose: sends a simple op with a boolean flag argument
+ * input: fd      - file descriptor to use
+ *        flag    - boolean flag
+ * output: TS_ERR_xx
+ **********************************************************************/
+TSMgmtError
+send_request_bool(int fd, OpType op, bool flag)
+{
+  char msg_buf[SIZE_OP_T + SIZE_LEN + SIZE_BOOL];
+  int16_t flag_t;
+  int32_t msg_len;
+
+  // Fill in the operator
+  memcpy(msg_buf, (void *) &op, SIZE_OP_T);
+
+  // fill in msg_len = SIZE_BOOL
+  msg_len = (int32_t) SIZE_BOOL;
+  memcpy(msg_buf + SIZE_OP_T, (void *)&msg_len, SIZE_LEN);
+
+  // Fill in the argument (the boolean flag)
+  flag_t = flag ? 1 : 0;
+  memcpy(msg_buf + SIZE_OP_T + SIZE_LEN, (void *) &flag_t, SIZE_BOOL);
+
+  // send message
+  return socket_write_conn(fd, msg_buf, SIZE_OP_T + SIZE_LEN + SIZE_BOOL);
+}
+
+/**********************************************************************
+ * send_file_read_request
+ *
+ * purpose: sends file read request to Traffic Manager
+ * input:   fd - file descriptor to use to send to
+ *          file - file to read
+ * output:  TS_ERR_xx
+ * notes:   first must create the message and then send it across network
+ *          msg format = <OpType> <msg_len> <TSFileNameT>
+ **********************************************************************/
+TSMgmtError
+send_file_read_request(int fd, TSFileNameT file)
+{
+  char msg_buf[SIZE_OP_T + SIZE_LEN + SIZE_FILE_T];
+  int msg_pos = 0;
+  int32_t msg_len = (int32_t) SIZE_FILE_T;  //marshalled values
+  int16_t op, file_t;
+
+  // fill in op type
+  op = (int16_t) FILE_READ;
+  memcpy(msg_buf + msg_pos, &op, SIZE_OP_T);
+  msg_pos += SIZE_OP_T;
+
+  // fill in msg length
+  memcpy(msg_buf + msg_pos, &msg_len, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in file type
+  file_t = (int16_t) file;
+  memcpy(msg_buf + msg_pos, &file_t, SIZE_FILE_T);
+
+  // send message
+  return socket_write_conn(fd, msg_buf, SIZE_OP_T + SIZE_LEN + SIZE_FILE_T);
+}
+
+/**********************************************************************
+ * send_file_write_request
+ *
+ * purpose: sends file write request to Traffic Manager
+ * input: fd - file descriptor to use
+ *        file - file to read
+ *        text - new text to write to specified file
+ *        size - length of the text
+ *        ver  - version of the file to be written
+ * output: TS_ERR_xx
+ * notes: format - FILE_WRITE <msg_len> <file_type> <file_ver> <file_size> <text>
+ **********************************************************************/
+TSMgmtError
+send_file_write_request(int fd, TSFileNameT file, int ver, int size, char *text)
+{
+  char *msg_buf;
+  int msg_pos = 0, total_len;
+  int32_t msg_len, f_size;        //marshalled values
+  int16_t op, file_t, f_ver;
+  TSMgmtError err;
+
+  if (!text)
+    return TS_ERR_PARAMS;
+
+  msg_len = SIZE_FILE_T + SIZE_VER + SIZE_LEN + size;
+  total_len = SIZE_OP_T + SIZE_LEN + msg_len;
+  msg_buf = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // fill in op type
+  op = (int16_t) FILE_WRITE;
+  memcpy(msg_buf + msg_pos, &op, SIZE_OP_T);
+  msg_pos += SIZE_OP_T;
+
+  // fill in msg length
+  memcpy(msg_buf + msg_pos, &msg_len, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in file type
+  file_t = (int16_t) file;
+  memcpy(msg_buf + msg_pos, &file_t, SIZE_FILE_T);
+  msg_pos += SIZE_FILE_T;
+
+  // fill in file version
+  f_ver = (int16_t) ver;
+  memcpy(msg_buf + msg_pos, &f_ver, SIZE_VER);
+  msg_pos += SIZE_VER;
+
+  // fill in file size
+  f_size = (int32_t) size;        //typecase to be safe
+  memcpy(msg_buf + msg_pos, &f_size, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in text of file
+  memcpy(msg_buf + msg_pos, text, size);
+
+  // send message
+  err = socket_write_conn(fd, msg_buf, total_len);
+  ats_free(msg_buf);
+  return err;
+}
+
+static TSMgmtError
+send_record_get_x_request(OpType optype, int fd, const char *rec_name)
+{
+  char *msg_buf;
+  int msg_pos = 0, total_len;
+  int16_t op = (int16_t)optype;
+  int32_t msg_len;
+  TSMgmtError err;
+
+  ink_assert(op == RECORD_GET || op == RECORD_MATCH_GET);
+
+  if (!rec_name) {
+    return TS_ERR_PARAMS;
+  }
+
+  total_len = SIZE_OP_T + SIZE_LEN + strlen(rec_name);
+  msg_buf = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // fill in op type
+  memcpy(msg_buf + msg_pos, (void *) &op, SIZE_OP_T);
+  msg_pos += SIZE_OP_T;
+
+  // fill in msg length
+  msg_len = (int32_t) strlen(rec_name);
+  memcpy(msg_buf + msg_pos, (void *) &msg_len, SIZE_LEN);
+  msg_pos += SIZE_LEN;
+
+  // fill in record name
+  memcpy(msg_buf + msg_pos, rec_name, strlen(rec_name));
+
+  // send message
+  err = socket_write_conn(fd, msg_buf, total_len);
+  ats_free(msg_buf);
+  return err;
+}
+
+/**********************************************************************
+ * send_record_get_request
+ *
+ * purpose: sends request to get record value from Traffic Manager
+ * input: fd       - file descriptor to use
+ *        rec_name - name of record to retrieve value for
+ * output: TS_ERR_xx
+ * format: RECORD_GET <msg_len> <rec_name>
+ **********************************************************************/
+TSMgmtError
+send_record_get_request(int fd, const char *rec_name)
+{
+  return send_record_get_x_request(RECORD_GET, fd, rec_name);
+}
+
+/**********************************************************************
+ * send_record_match_request
+ *
+ * purpose: sends request to get a list of matching record values from Traffic Manager
+ * input: fd       - file descriptor to use
+ *        rec_name - regex to match against record names
+ * output: TS_ERR_xx
+ * format: sequence of RECORD_GET <msg_len> <rec_name>
+ **********************************************************************/
+TSMgmtError
+send_record_match_request(int fd, const char *rec_regex)
+{
+  return send_record_get_x_request(RECORD_MATCH_GET, fd, rec_regex);
+}
+
+/*------ control functions -------------------------------------------*/
+/**********************************************************************
+ * send_proxy_state_get_request
+ *
+ * purpose: sends request to get the proxy state (on/off)
+ * input: fd       - file descriptor to use
+ * output: TS_ERR_xx
+ * note: format: PROXY_STATE_GET 0(=msg_len)
+ **********************************************************************/
+TSMgmtError
+send_proxy_state_get_request(int fd)
+{
+  TSMgmtError err;
+
+  err = send_request(fd, PROXY_STATE_GET);
+  return err;
+}
+
+/**********************************************************************
+ * send_proxy_state_set_request
+ *
+ * purpose: sends request to set the proxy state (on/off)
+ * input: fd    - file descriptor to use
+ *        state - TS_PROXY_ON, TS_PROXY_OFF
+ * output: TS_ERR_xx
+ * note: format: PROXY_STATE_SET  <msg_len> <TSProxyStateT> <TSCacheClearT>
+ **********************************************************************/
+TSMgmtError
+send_proxy_state_set_request(int fd, TSProxyStateT state, TSCacheClearT clear)
+{
+  char msg_buf[SIZE_OP_T + SIZE_LEN + SIZE_PROXY_T + SIZE_TS_ARG_T];
+  int16_t op, state_t, cache_t;
+  int32_t msg_len;
+
+  // fill in op type
+  op = (int16_t) PROXY_STATE_SET;
+  memcpy(msg_buf, (void *) &op, SIZE_OP_T);
+
+  // fill in msg_len
+  msg_len = (int32_t) (SIZE_PROXY_T + SIZE_TS_ARG_T);
+  memcpy(msg_buf + SIZE_OP_T, (void *) &msg_len, SIZE_LEN);
+
+  // fill in proxy state
+  state_t = (int16_t) state;
+  memcpy(msg_buf + SIZE_OP_T + SIZE_LEN, (void *) &state_t, SIZE_PROXY_T);
+
+  // fill in cache clearing option
+  cache_t = (int16_t) clear;
+  memcpy(msg_buf + SIZE_OP_T + SIZE_LEN + SIZE_PROXY_T, (void *) &cache_t, SIZE_TS_ARG_T);
+
+  // send message
+  return socket_write_conn(fd, msg_buf, SIZE_OP_T + SIZE_LEN + SIZE_PROXY_T + SIZE_TS_ARG_T);
+}
+
+
+/*------ events -------------------------------------------------------*/
+
+/**********************************************************************
+ * send_register_all_callbacks
+ *
+ * purpose: determines all events which have at least one callback registered
+ *          and sends message to notify TM that this client has a callback
+ *          registered for each event
+ * input: None
+ * output: return TS_ERR_OKAY only if ALL events sent okay
+ * notes: could create a function which just sends a list of all the events to
+ * reregister; but actually just reuse the function
+ * send_request_name(EVENT_REG_CALLBACK) and call it for each event
+ * 1) get list of all events with callbacks
+ * 2) for each event, call send_request_name
+ **********************************************************************/
+TSMgmtError
+send_register_all_callbacks(int fd, CallbackTable * cb_table)
+{
+  LLQ *events_with_cb;
+  TSMgmtError err, send_err = TS_ERR_FAIL;
+  bool no_errors = true;        // set to false if one send is not okay
+
+  events_with_cb = get_events_with_callbacks(cb_table);
+  // need to check that the list has all the events registered
+  if (!events_with_cb) {        // all events have registered callback
+    err = send_request_name(fd, EVENT_REG_CALLBACK, NULL);
+    if (err != TS_ERR_OKAY)
+      return err;
+  } else {
+    char *event_name;
+    int event_id;
+    int num_events = queue_len(events_with_cb);
+    // iterate through the LLQ and send request for each event
+    for (int i = 0; i < num_events; i++) {
+      event_id = *(int *) dequeue(events_with_cb);
+      event_name = (char *) get_event_name(event_id);
+      if (event_name) {
+        err = send_request_name(fd, EVENT_REG_CALLBACK, event_name);
+        ats_free(event_name);      // free memory
+        if (err != TS_ERR_OKAY) {
+          send_err = err;       // save the type of send error
+          no_errors = false;
+        }
+      }
+      // REMEMBER: WON"T GET A REPLY from TM side!
+    }
+  }
+
+  if (events_with_cb)
+    delete_queue(events_with_cb);
+
+  if (no_errors)
+    return TS_ERR_OKAY;
+  else
+    return send_err;
+}
+
+/**********************************************************************
+ * send_unregister_all_callbacks
+ *
+ * purpose: determines all events which have no callback registered
+ *          and sends message to notify TM that this client has no
+ *          callbacks registered for that event
+ * input: None
+ * output: TS_ERR_OKAY only if all send requests are okay
+ * notes: could create a function which just sends a list of all the events to
+ * unregister; but actually just reuse the function
+ * send_request_name(EVENT_UNREG_CALLBACK) and call it for each event
+ **********************************************************************/
+TSMgmtError
+send_unregister_all_callbacks(int fd, CallbackTable * cb_table)
+{
+  char *event_name;
+  int event_id;
+  LLQ *events_with_cb;          // list of events with at least one callback
+  int reg_callback[NUM_EVENTS];
+  TSMgmtError err, send_err = TS_ERR_FAIL;
+  bool no_errors = true;        // set to false if at least one send fails
+
+  // init array so that all events don't have any callbacks
+  for (int i = 0; i < NUM_EVENTS; i++) {
+    reg_callback[i] = 0;
+  }
+
+  events_with_cb = get_events_with_callbacks(cb_table);
+  if (!events_with_cb) {        // all events have a registered callback
+    return TS_ERR_OKAY;
+  } else {
+    int num_events = queue_len(events_with_cb);
+    // iterate through the LLQ and mark events that have a callback
+    for (int i = 0; i < num_events; i++) {
+      event_id = *(int *) dequeue(events_with_cb);
+      reg_callback[event_id] = 1;       // mark the event as having a callback
+    }
+    delete_queue(events_with_cb);
+  }
+
+  // send message to TM to mark unregister
+  for (int k = 0; k < NUM_EVENTS; k++) {
+    if (reg_callback[k] == 0) { // event has no registered callbacks
+      event_name = get_event_name(k);
+      err = send_request_name(fd, EVENT_UNREG_CALLBACK, event_name);
+      ats_free(event_name);
+      if (err != TS_ERR_OKAY) {
+        send_err = err;         //save the type of the sending error
+        no_errors = false;
+      }
+      // REMEMBER: WON"T GET A REPLY!
+      // only the event_poll_thread_main does any reading of the event_socket;
+      // so DO NOT parse reply b/c a reply won't be sent
+    }
+  }
+
+  if (no_errors)
+    return TS_ERR_OKAY;
+  else
+    return send_err;
+}
+
+/**********************************************************************
+ * send_diags_msg
+ *
+ * purpose: sends the diag msg across along with they diag msg type
+ * input: mode - type of diags msg
+ *        msg  - the diags msg
+ * output: TS_ERR_xx
+ * note: format: <OpType> <msg_len> <TSDiagsT> <diag_msg_len> <diag_msg>
+ **********************************************************************/
+TSMgmtError
+send_diags_msg(int fd, TSDiagsT mode, const char *diag_msg)
+{
+  char *msg_buf;
+  int16_t op_t, diag_t;
+  int32_t msg_len, diag_msg_len;
+  int total_len;
+  TSMgmtError err;
+
+  if (!diag_msg)
+    return TS_ERR_PARAMS;
+
+  diag_msg_len = (int32_t) strlen(diag_msg);
+  msg_len = SIZE_DIAGS_T + SIZE_LEN + diag_msg_len;
+  total_len = SIZE_OP_T + SIZE_LEN + msg_len;
+  msg_buf = (char *)ats_malloc(sizeof(char) * total_len);
+
+  // fill in op type
+  op_t = (int16_t) DIAGS;
+  memcpy(msg_buf, (void *) &op_t, SIZE_OP_T);
+
+  // fill in entire msg len
+  memcpy(msg_buf + SIZE_OP_T, (void *) &msg_len, SIZE_LEN);
+
+  // fill in TSDiagsT
+  diag_t = (int16_t) mode;
+  memcpy(msg_buf + SIZE_OP_T + SIZE_LEN, (void *) &diag_t, SIZE_DIAGS_T);
+
+  // fill in diags msg_len
+  memcpy(msg_buf + SIZE_OP_T + SIZE_LEN + SIZE_DIAGS_T, (void *) &diag_msg_len, SIZE_LEN);
+
+  // fill in diags msg
+  memcpy(msg_buf + SIZE_OP_T + SIZE_LEN + SIZE_DIAGS_T + SIZE_LEN, diag_msg, diag_msg_len);
+
+  // send message
+  err = socket_write_conn(fd, msg_buf, total_len);
+  ats_free(msg_buf);
+  return err;
+}
+
+
+/**********************************************************************
+ * UNMARSHAL REPLIES
+ **********************************************************************/
+
+/* Error handling implementation:
+ * All the parsing functions which parse the reply returned from local side
+ * also must read the TSERror return value sent from local side; this return
+ * value is the same value that will be returned by the parsing function.
+ * ALL PARSING FUNCTIONS MUST FIRST CHECK that the retval is TS_ERR_OKAY;
+ * if it is not, then DON"T PARSE THE REST OF THE REPLY!!
+ */
+
+/* Reading replies:
+ * The reading is done in while loop in the parse_xx_reply functions;
+ * need to add a timeout so that the function is not left looping and
+ * waiting if a msg isn't sent to the socket from local side (eg. TM died)
+ */
+
+/**********************************************************************
+ * parse_reply
+ *
+ * purpose: parses a reply from traffic manager. return that error
+ * input: fd
+ * output: errors on error or fill up class with response &
+ *         return TS_ERR_xx
+ * notes: only returns an TSMgmtError
+ **********************************************************************/
+TSMgmtError
+parse_reply(int fd)
+{
+  TSMgmtError ret;
+  int16_t ret_val;
+
+  // check to see if anything to read; wait for specified time = 1 sec
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) { // time expires before ready to read
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  ret = socket_read_conn(fd, (uint8_t *)&ret_val, SIZE_ERR_T);
+  if (ret != TS_ERR_OKAY) {
+    return ret;
+  }
+
+  return (TSMgmtError) ret_val;
+}
+
+/**********************************************************************
+ * parse_reply_list
+ *
+ * purpose: parses a TM reply to a request to get a list of string tokens
+ * input: fd - socket to read
+ *        list - will contain delimited string list of tokens
+ * output: TS_ERR_xx
+ * notes:
+ * format: <TSMgmtError> <string_list_len> <delimited_string_list>
+ **********************************************************************/
+TSMgmtError
+parse_reply_list(int fd, char **list)
+{
+  int16_t ret_val;
+  int32_t list_size;
+  TSMgmtError err_t;
+
+  if (!list) {
+    return TS_ERR_PARAMS;
+  }
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  // get the return value (TSMgmtError type)
+  err_t = socket_read_conn(fd, (uint8_t *)&ret_val, SIZE_ERR_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // if !TS_ERR_OKAY, stop reading rest of msg
+  err_t = (TSMgmtError) ret_val;
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // now get size of string event list
+  err_t = socket_read_conn(fd, (uint8_t *)&list_size, SIZE_LEN);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // get the delimited event list string
+  *list = (char *)ats_malloc(sizeof(char) * (list_size + 1));
+  err_t = socket_read_conn(fd, (uint8_t *)(*list), list_size);
+  if (err_t != TS_ERR_OKAY) {
+    ats_free(*list);
+    *list = NULL;
+    return err_t;
+  }
+
+  // add end of string to end of the record value
+  ((char *) (*list))[list_size] = '\0';
+  return err_t;
+}
+
+
+/**********************************************************************
+ * parse_file_read_reply
+ *
+ * purpose: parses a file read reply from traffic manager.
+ * input: fd
+ *        ver -
+ *        size - size of text
+ *        text -
+ * output: errors on error or fill up class with response &
+ *         return TS_ERR_xx
+ * notes: reply format = <TSMgmtError> <file_version> <file_size> <text>
+ **********************************************************************/
+TSMgmtError
+parse_file_read_reply(int fd, int *ver, int *size, char **text)
+{
+  int32_t f_size;
+  int16_t ret_val, f_ver;
+  TSMgmtError err_t;
+
+  if (!ver || !size || !text)
+    return TS_ERR_PARAMS;
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) { // time expires before ready to read
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  // get the error return value
+  err_t = socket_read_conn(fd, (uint8_t *)&ret_val, SIZE_ERR_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // if !TS_ERR_OKAY, stop reading rest of msg
+  err_t = (TSMgmtError) ret_val;
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // now get file version
+  err_t = socket_read_conn(fd, (uint8_t *)&f_ver, SIZE_VER);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  *ver = (int) f_ver;
+
+  // now get file size
+  err_t = socket_read_conn(fd, (uint8_t *)&f_size, SIZE_LEN);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  *size = (int) f_size;
+
+  // check size before reading text
+  if ((*size) <= 0) {
+    *text = ats_strndup("", 1);                 // set to empty string
+    return TS_ERR_OKAY;
+  }
+
+  // now we got the size, we can read everything into our msg * then parse it
+  *text = (char *)ats_malloc(sizeof(char) * (f_size + 1));
+  err_t = socket_read_conn(fd, (uint8_t *)(*text), f_size);
+  if (err_t != TS_ERR_OKAY) {
+    ats_free(*text);
+    *text = NULL;
+    return err_t;
+  }
+
+  (*text)[f_size] = '\0';     // end the string
+  return TS_ERR_OKAY;
+}
+
+/**********************************************************************
+ * parse_record_get_reply
+ *
+ * purpose: parses a record_get reply from traffic manager.
+ * input: fd
+ *        retval   -
+ *        rec_type - the type of the record
+ *        rec_value - the value of the record in string format
+ * output: errors on error or fill up class with response &
+ *         return SUCC
+ * notes: reply format = <TSMgmtError> <val_size> <name_size> <rec_type> <record_value> <record_name>
+ * Zero-length values and names are supported. If the size field is 0, the corresponding
+ * value field is not transmitted.
+ * It's the responsibility of the calling function to conver the rec_value
+ * based on the rec_type!!
+ **********************************************************************/
+TSMgmtError
+parse_record_get_reply(int fd, TSRecordT * rec_type, void **rec_val, char **rec_name)
+{
+  int16_t ret_val, rec_t;
+  int32_t val_size, name_size;
+  TSMgmtError err_t;
+
+  if (!rec_type || !rec_val) {
+    return TS_ERR_PARAMS;
+  }
+
+  *rec_name = NULL;
+  *rec_val = NULL;
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) { //time expired before ready to read
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  // get the return value (TSMgmtError type)
+  err_t = socket_read_conn(fd, (uint8_t *)&ret_val, SIZE_ERR_T);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  // if !TS_ERR_OKAY, stop reading rest of msg
+  err_t = (TSMgmtError) ret_val;
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  // now get size of record_value
+  err_t = socket_read_conn(fd, (uint8_t *)&val_size, SIZE_LEN);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  // now get size of record name
+  err_t = socket_read_conn(fd, (uint8_t *)&name_size, SIZE_LEN);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  // get the record type
+  err_t = socket_read_conn(fd, (uint8_t *)&rec_t, SIZE_REC_T);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  *rec_type = (TSRecordT) rec_t;
+
+  // get record value (if there is one)
+  if (val_size) {
+    if (*rec_type == TS_REC_STRING) {
+      *rec_val = ats_malloc(sizeof(char) * (val_size + 1));
+    } else {
+      *rec_val = ats_malloc(sizeof(char) * (val_size));
+    }
+
+    err_t = socket_read_conn(fd, (uint8_t *)(*rec_val), val_size);
+    if (err_t != TS_ERR_OKAY) {
+      goto fail;
+    }
+
+    // add end of string to end of the record value
+    if (*rec_type == TS_REC_STRING) {
+      ((char *) (*rec_val))[val_size] = '\0';
+    }
+  }
+
+  // get the record name (if there is one)
+  if (name_size) {
+    *rec_name = (char *)ats_malloc(sizeof(char) * (name_size + 1));
+    err_t = socket_read_conn(fd, (uint8_t *)(*rec_name), name_size);
+    if (err_t != TS_ERR_OKAY) {
+      goto fail;
+    }
+
+    (*rec_name)[name_size] = '\0';
+  }
+
+  return TS_ERR_OKAY;
+
+fail:
+  ats_free(*rec_val);
+  ats_free(*rec_name);
+  *rec_val = NULL;
+  *rec_name = NULL;
+  return err_t;
+}
+
+/**********************************************************************
+ * parse_record_set_reply
+ *
+ * purpose: parses a record_set reply from traffic manager.
+ * input: fd
+ *        action_need - will contain the type of action needed from the set
+ * output: TS_ERR_xx
+ * notes: reply format = <TSMgmtError> <val_size> <rec_type> <record_value>
+ * It's the responsibility of the calling function to conver the rec_value
+ * based on the rec_type!!
+ **********************************************************************/
+TSMgmtError
+parse_record_set_reply(int fd, TSActionNeedT * action_need)
+{
+  int16_t ret_val, action_t;
+  TSMgmtError err_t;
+
+  if (!action_need)
+    return TS_ERR_PARAMS;
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  // get the return value (TSMgmtError type)
+  err_t = socket_read_conn(fd, (uint8_t *)&ret_val, SIZE_ERR_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // if !TS_ERR_OKAY, stop reading rest of msg
+  err_t = (TSMgmtError) ret_val;
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // now get the action needed
+  err_t = socket_read_conn(fd, (uint8_t *)&action_t, SIZE_ACTION_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  *action_need = (TSActionNeedT) action_t;
+  return err_t;
+}
+
+
+/**********************************************************************
+ * parse_proxy_state_get_reply
+ *
+ * purpose: parses a TM reply to a PROXY_STATE_GET request
+ * input: fd
+ *        state - will contain the state of the proxy
+ * output: TS_ERR_xx
+ * notes: function is DIFFERENT becuase it has NO TSMgmtError at head of msg
+ * format: <TSProxyStateT>
+ **********************************************************************/
+TSMgmtError
+parse_proxy_state_get_reply(int fd, TSProxyStateT * state)
+{
+  TSMgmtError err_t;
+  int16_t state_t;
+
+  if (!state)
+    return TS_ERR_PARAMS;
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) { // time expires before ready to read
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  // now get proxy state
+  err_t = socket_read_conn(fd, (uint8_t *)&state_t, SIZE_PROXY_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  *state = (TSProxyStateT) state_t;
+  return TS_ERR_OKAY;
+}
+
+/*------------- events ---------------------------------------------*/
+
+/**********************************************************************
+ * parse_event_active_reply
+ *
+ * purpose: parses a TM reply to a request to get status of an event
+ * input: fd - socket to read
+ *        is_active - set to true if event is active; false otherwise
+ * output: TS_ERR_xx
+ * notes:
+ * format: reply format = <TSMgmtError> <bool>
+ **********************************************************************/
+TSMgmtError
+parse_event_active_reply(int fd, bool * is_active)
+{
+  int16_t ret_val, active;
+  TSMgmtError err_t;
+
+  if (!is_active)
+    return TS_ERR_PARAMS;
+
+  // check to see if anything to read; wait for specified time
+  if (socket_read_timeout(fd, MAX_TIME_WAIT, 0) <= 0) {
+    return TS_ERR_NET_TIMEOUT;
+  }
+
+  // get the return value (TSMgmtError type)
+  err_t = socket_read_conn(fd, (uint8_t *)&ret_val, SIZE_ERR_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // if !TS_ERR_OKAY, stop reading rest of msg
+  err_t = (TSMgmtError) ret_val;
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // now get the boolean
+  err_t = socket_read_conn(fd, (uint8_t *)&active, SIZE_BOOL);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  *is_active = (bool) active;
+  return err_t;
+}
+
+/**********************************************************************
+ * parse_event_notification
+ *
+ * purpose: parses the event notification message from TM when an event
+ *          is signalled; stores the event info in the TSMgmtEvent
+ * input: fd - socket to read
+ *        event - where the event info from msg is stored
+ * output:TS_ERR_OKAY, TS_ERR_NET_READ, TS_ERR_NET_EOF, TS_ERR_PARAMS
+ * notes:
+ * format: <OpType> <event_name_len> <event_name> <desc_len> <desc>
+ **********************************************************************/
+TSMgmtError
+parse_event_notification(int fd, TSMgmtEvent * event)
+{
+  OpType msg_type;
+  int16_t type_op;
+  int32_t msg_len;
+  char *event_name = NULL, *desc = NULL;
+  TSMgmtError err_t;
+
+  if (!event)
+    return TS_ERR_PARAMS;
+
+  // read the operation type; should be EVENT_NOTIFY
+  err_t = socket_read_conn(fd, (uint8_t *)&type_op, SIZE_OP_T);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // got the message type; the msg_type should be EVENT_NOTIFY
+  msg_type = (OpType) type_op;
+  if (msg_type != EVENT_NOTIFY) {
+    return TS_ERR_FAIL;
+  }
+
+  // read in event name length
+  err_t = socket_read_conn(fd, (uint8_t *)&msg_len, SIZE_LEN);
+  if (err_t != TS_ERR_OKAY) {
+    return err_t;
+  }
+
+  // read the event name
+  event_name = (char *)ats_malloc(sizeof(char) * (msg_len + 1));
+  err_t = socket_read_conn(fd, (uint8_t *)event_name, msg_len);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  event_name[msg_len] = '\0';   // end the string
+
+  // read in event description length
+  err_t = socket_read_conn(fd, (uint8_t *)&msg_len, SIZE_LEN);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  // read the event description
+  desc = (char *)ats_malloc(sizeof(char) * (msg_len + 1));
+  err_t = socket_read_conn(fd, (uint8_t *)desc, msg_len);
+  if (err_t != TS_ERR_OKAY) {
+    goto fail;
+  }
+
+  desc[msg_len] = '\0';         // end the string
+
+  // fill in event info
+  event->name = event_name;
+  event->id = (int) get_event_id(event_name);
+  event->description = desc;
+
+  return TS_ERR_OKAY;
+
+fail:
+  ats_free(event_name);
+  ats_free(desc);
+  return err_t;
+}
diff --git a/mgmt/api/NetworkUtilsRemote.h b/mgmt/api/NetworkUtilsRemote.h
new file mode 100644
index 00000000..9a2ac7d9
--- /dev/null
+++ b/mgmt/api/NetworkUtilsRemote.h
@@ -0,0 +1,109 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: NetworkUtilsRemote.h
+ * Purpose: This file contains functions used by remote api client to
+ *          marshal requests to TM and unmarshal replies from TM.
+ *          Also contains functions used to store information specific
+ *          to a remote client connection.
+ * Created: 8/9/00
+ * Created by: lant
+ *
+ ***************************************************************************/
+
+#ifndef _NETWORK_UTILS_H_
+#define _NETWORK_UTILS_H_
+
+#include "ink_defs.h"
+#include "ink_mutex.h"
+
+#include "mgmtapi.h"
+#include "NetworkUtilsDefs.h"
+#include "EventCallback.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+const int DEFAULT_STACK_SIZE = 1048576; // 1MB stack
+
+/**********************************************************************
+ * Socket Helper Functions
+ **********************************************************************/
+void set_socket_paths(const char *path);
+int socket_test(int fd);
+
+/* The following functions are specific for a client connection; uses
+ * the client connection information stored in the variables in
+ * NetworkUtilsRemote.cc
+ */
+TSMgmtError ts_connect(); /* TODO: update documenation, Renamed due to conflict with connect() in <sys/socket.h> on some platforms*/
+TSMgmtError disconnect();
+TSMgmtError reconnect();
+TSMgmtError reconnect_loop(int num_attempts);
+TSMgmtError connect_and_send(const char *msg, int msg_len);
+void *socket_test_thread(void *arg);
+
+/*****************************************************************************
+ * Marshalling (create requests)
+ *****************************************************************************/
+TSMgmtError send_request(int fd, OpType op);
+TSMgmtError send_request_name(int fd, OpType op, const char *name);
+TSMgmtError send_request_name_value(int fd, OpType op, const char *name, const char *value);
+TSMgmtError send_request_bool(int fd, OpType op, bool flag);
+
+TSMgmtError send_file_read_request(int fd, TSFileNameT file);
+TSMgmtError send_file_write_request(int fd, TSFileNameT file, int ver, int size, char *text);
+TSMgmtError send_record_get_request(int fd, const char *rec_name);
+TSMgmtError send_record_match_request(int fd, const char *rec_regex);
+
+TSMgmtError send_proxy_state_set_request(int fd, TSProxyStateT state, TSCacheClearT clear);
+
+TSMgmtError send_register_all_callbacks(int fd, CallbackTable * cb_table);
+TSMgmtError send_unregister_all_callbacks(int fd, CallbackTable * cb_table);
+
+TSMgmtError send_diags_msg(int fd, TSDiagsT mode, const char *diag_msg);
+
+/*****************************************************************************
+ * Un-marshalling (parse responses)
+ *****************************************************************************/
+TSMgmtError parse_reply(int fd);
+TSMgmtError parse_reply_list(int fd, char **list);
+
+TSMgmtError parse_file_read_reply(int fd, int *version, int *size, char **text);
+
+TSMgmtError parse_record_get_reply(int fd, TSRecordT * rec_type, void **rec_val, char **rec_name);
+TSMgmtError parse_record_set_reply(int fd, TSActionNeedT * action_need);
+
+TSMgmtError parse_proxy_state_get_reply(int fd, TSProxyStateT * state);
+
+TSMgmtError parse_event_active_reply(int fd, bool * is_active);
+TSMgmtError parse_event_notification(int fd, TSMgmtEvent * event);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif
diff --git a/mgmt/api/TSControlMain.cc b/mgmt/api/TSControlMain.cc
new file mode 100644
index 00000000..67fe691d
--- /dev/null
+++ b/mgmt/api/TSControlMain.cc
@@ -0,0 +1,1002 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: TSControlMain.cc
+ * Purpose: The main section for traffic server that handles all the requests
+ *          from the user.
+ * Created: 01/08/01
+ * Created by: Stephanie Song
+ *
+ ***************************************************************************/
+
+#include "libts.h"
+#include "LocalManager.h"
+#include "Main.h"
+#include "MgmtUtils.h"
+#include "MgmtSocket.h"
+#include "TSControlMain.h"
+#include "CoreAPI.h"
+#include "CoreAPIShared.h"
+#include "NetworkUtilsLocal.h"
+#include "NetworkUtilsDefs.h"
+
+#define TIMEOUT_SECS 1;         // the num secs for select timeout
+
+extern int diags_init;          // from Main.cc
+
+InkHashTable *accepted_con;     // a list of all accepted client connections
+
+/*********************************************************************
+ * create_client
+ *
+ * purpose: creates a new ClientT and return pointer to it
+ * input: None
+ * output: ClientT
+ * note: created for each accepted client connection
+ *********************************************************************/
+ClientT *
+create_client()
+{
+  ClientT *ele = (ClientT *)ats_malloc(sizeof(ClientT));
+
+  ele->adr = (struct sockaddr *)ats_malloc(sizeof(struct sockaddr));
+  return ele;
+}
+
+/*********************************************************************
+ * delete_client
+ *
+ * purpose: frees dynamic memory allocated for a ClientT
+ * input: client - the ClientT to free
+ * output:
+ *********************************************************************/
+void
+delete_client(ClientT * client)
+{
+  if (client) {
+    ats_free(client->adr);
+    ats_free(client);
+  }
+  return;
+}
+
+/*********************************************************************
+ * remove_client
+ *
+ * purpose: removes the ClientT from the specified hashtable; includes
+ *          removing the binding and freeing the ClientT
+ * input: client - the ClientT to remove
+ * output:
+ *********************************************************************/
+void
+remove_client(ClientT * client, InkHashTable * table)
+{
+  // close client socket
+  close_socket(client->sock_info.fd);       // close client socket
+
+  // remove client binding from hash table
+  ink_hash_table_delete(table, (char *) &client->sock_info.fd);
+
+  // free ClientT
+  delete_client(client);
+
+  return;
+}
+
+/*********************************************************************
+ * ts_ctrl_main
+ *
+ * This function is run as a thread in WebIntrMain.cc that listens on a
+ * specified socket. It loops until Traffic Manager dies.
+ * In the loop, it just listens on a socket, ready to accept any connections,
+ * until receives a request from the remote API client. Parse the request
+ * to determine which CoreAPI call to make.
+ *********************************************************************/
+void *
+ts_ctrl_main(void *arg)
+{
+  int ret;
+  OpType op_t;                  // operation type for a request; NetworkUtilsDefs.h
+  int *socket_fd;
+  int con_socket_fd;            // main socket for listening to new connections
+  char *req = NULL;             // the request msg sent over from client (not include header)
+
+  socket_fd = (int *) arg;
+  con_socket_fd = *socket_fd;
+
+  // initialize queue for accepted con
+  accepted_con = ink_hash_table_create(InkHashTableKeyType_Word);
+  if (!accepted_con) {
+    return NULL;
+  }
+  // now we can start listening, accepting connections and servicing requests
+  int new_con_fd;               // new socket fd when accept connection
+
+  fd_set selectFDs;             // for select call
+  InkHashTableEntry *con_entry; // used to obtain client connection info
+  ClientT *client_entry;        // an entry of fd to alarms mapping
+  InkHashTableIteratorState con_state;  // used to iterate through hash table
+  int fds_ready;                // stores return value for select
+  struct timeval timeout;
+  int addr_len = (sizeof(struct sockaddr));
+
+  // loops until TM dies; waits for and processes requests from clients
+  while (1) {
+    // LINUX: to prevent hard-spin of CPU,  reset timeout on each loop
+    timeout.tv_sec = TIMEOUT_SECS;
+    timeout.tv_usec = 0;
+
+    FD_ZERO(&selectFDs);
+
+    if (con_socket_fd >= 0) {
+      FD_SET(con_socket_fd, &selectFDs);
+      //Debug("ts_main", "[ts_ctrl_main] add fd %d to select set\n", con_socket_fd);
+    }
+    // see if there are more fd to set
+    con_entry = ink_hash_table_iterator_first(accepted_con, &con_state);
+
+    // iterate through all entries in hash table
+    while (con_entry) {
+      client_entry = (ClientT *) ink_hash_table_entry_value(accepted_con, con_entry);
+      if (client_entry->sock_info.fd >= 0) {    // add fd to select set
+        FD_SET(client_entry->sock_info.fd, &selectFDs);
+        Debug("ts_main", "[ts_ctrl_main] add fd %d to select set\n", client_entry->sock_info.fd);
+      }
+      con_entry = ink_hash_table_iterator_next(accepted_con, &con_state);
+    }
+
+    // select call - timeout is set so we can check events at regular intervals
+    fds_ready = mgmt_select(FD_SETSIZE, &selectFDs, (fd_set *) NULL, (fd_set *) NULL, &timeout);
+
+    // check if have any connections or requests
+    if (fds_ready > 0) {
+      // first check for connections!
+      if (con_socket_fd >= 0 && FD_ISSET(con_socket_fd, &selectFDs)) {
+        fds_ready--;
+
+        // create a new instance to store client connection info
+        ClientT *new_client_con = create_client();
+        if (!new_client_con) {
+          // return TS_ERR_SYS_CALL; WHAT TO DO? just keep going
+          Debug("ts_main", "[ts_ctrl_main] can't allocate new ClientT\n");
+        } else {                // accept connection
+          new_con_fd = mgmt_accept(con_socket_fd, new_client_con->adr, &addr_len);
+          new_client_con->sock_info.fd = new_con_fd;
+          new_client_con->sock_info.SSLcon = NULL;
+          ink_hash_table_insert(accepted_con, (char *) &new_client_con->sock_info.fd, new_client_con);
+          Debug("ts_main", "[ts_ctrl_main] Add new client connection \n");
+        }
+      }                         // end if(new_con_fd >= 0 && FD_ISSET(new_con_fd, &selectFDs))
+
+      // some other file descriptor; for each one, service request
+      if (fds_ready > 0) {      // RECEIVED A REQUEST from remote API client
+        // see if there are more fd to set - iterate through all entries in hash table
+        con_entry = ink_hash_table_iterator_first(accepted_con, &con_state);
+        while (con_entry) {
+          Debug("ts_main", "[ts_ctrl_main] We have a remote client request!\n");
+          client_entry = (ClientT *) ink_hash_table_entry_value(accepted_con, con_entry);
+          // got information; check
+          if (client_entry->sock_info.fd && FD_ISSET(client_entry->sock_info.fd, &selectFDs)) {
+            // SERVICE REQUEST - read the op and message into a buffer
+            // clear the fields first
+            op_t = UNDEFINED_OP;
+            ret = preprocess_msg(client_entry->sock_info, (OpType *) & op_t, &req);
+            if (ret == TS_ERR_NET_READ || ret == TS_ERR_NET_EOF) {
+              // occurs when remote API client terminates connection
+              Debug("ts_main", "[ts_ctrl_main] ERROR: preprocess_msg - remove client %d \n", client_entry->sock_info.fd);
+              remove_client(client_entry, accepted_con);
+              // get next client connection (if any)
+              con_entry = ink_hash_table_iterator_next(accepted_con, &con_state);
+              continue;
+            }
+
+            // determine which handler function to call based on operation
+            switch (op_t) {
+            case RECORD_GET:
+              ret = handle_record_get(client_entry->sock_info, req);
+              break;
+
+            case RECORD_MATCH_GET:
+              ret = handle_record_match(client_entry->sock_info, req);
+              break;
+
+            case RECORD_SET:
+              ret = handle_record_set(client_entry->sock_info, req);
+              break;
+
+            case FILE_READ:
+              ret = handle_file_read(client_entry->sock_info, req);
+              break;
+
+            case FILE_WRITE:
+              ret = handle_file_write(client_entry->sock_info, req);
+              break;
+
+            case PROXY_STATE_GET:
+              ret = handle_proxy_state_get(client_entry->sock_info);
+              break;
+
+            case PROXY_STATE_SET:
+              ret = handle_proxy_state_set(client_entry->sock_info, req);
+              break;
+
+            case RECONFIGURE:
+              ret = handle_reconfigure(client_entry->sock_info);
+              break;
+
+            case RESTART:
+              ret = handle_restart(client_entry->sock_info, req, false);
+              break;
+
+            case BOUNCE:
+              ret = handle_restart(client_entry->sock_info, req, true);
+              break;
+
+            case STORAGE_DEVICE_CMD_OFFLINE:
+              ret = handle_storage_device_cmd_offline(client_entry->sock_info, req);
+              break;
+
+            case EVENT_RESOLVE:
+              ret = handle_event_resolve(client_entry->sock_info, req);
+              break;
+
+            case EVENT_GET_MLT:
+              ret = handle_event_get_mlt(client_entry->sock_info);
+              break;
+
+            case EVENT_ACTIVE:
+              ret = handle_event_active(client_entry->sock_info, req);
+              break;
+
+            case SNAPSHOT_TAKE:
+            case SNAPSHOT_RESTORE:
+            case SNAPSHOT_REMOVE:
+              ret = handle_snapshot(client_entry->sock_info, req, op_t);
+              break;
+
+            case SNAPSHOT_GET_MLT:
+              ret = handle_snapshot_get_mlt(client_entry->sock_info);
+              break;
+
+            case DIAGS:
+              ret = handle_diags(client_entry->sock_info, req);
+              break;
+
+            case STATS_RESET_CLUSTER:
+            case STATS_RESET_NODE:
+              ret = handle_stats_reset(client_entry->sock_info, req, op_t);
+              break;
+
+            case UNDEFINED_OP:
+            default:
+              break;
+
+            }                   // end switch (op_t)
+
+            ats_free(req);
+
+            if (ret == TS_ERR_NET_WRITE || ret == TS_ERR_NET_EOF) {
+              Debug("ts_main", "[ts_ctrl_main] ERROR: sending response for message op %d\n", (int)op_t);
+              remove_client(client_entry, accepted_con);
+              con_entry = ink_hash_table_iterator_next(accepted_con, &con_state);
+              continue;
+            }
+
+          }                     // end if(client_entry->sock_info.fd && FD_ISSET(client_entry->sock_info.fd, &selectFDs))
+
+          con_entry = ink_hash_table_iterator_next(accepted_con, &con_state);
+        }                       // end while (con_entry)
+      }                         // end if (fds_ready > 0)
+
+    }                           // end if (fds_ready > 0)
+
+  }                             // end while (1)
+
+  // if we get here something's wrong, just clean up
+  Debug("ts_main", "[ts_ctrl_main] CLOSING AND SHUTTING DOWN OPERATIONS\n");
+  close_socket(con_socket_fd);
+
+  // iterate through hash table; close client socket connections and remove entry
+  con_entry = ink_hash_table_iterator_first(accepted_con, &con_state);
+  while (con_entry) {
+    client_entry = (ClientT *) ink_hash_table_entry_value(accepted_con, con_entry);
+    if (client_entry->sock_info.fd >= 0) {
+      close_socket(client_entry->sock_info.fd);     // close socket
+    }
+    ink_hash_table_delete(accepted_con, (char *) &client_entry->sock_info.fd);  // remove binding
+    delete_client(client_entry);        // free ClientT
+    con_entry = ink_hash_table_iterator_next(accepted_con, &con_state);
+  }
+  // all entries should be removed and freed already
+  ink_hash_table_destroy(accepted_con);
+
+  ink_thread_exit(NULL);
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+                             HANDLER FUNCTIONS
+ --------------------------------------------------------------------------*/
+/* NOTE: all the handle_xx functions basically, take the request, parse it,
+ * and send a reply back to the remote client. So even if error occurs,
+ * each handle functions MUST SEND A REPLY BACK!! If an error occurs during
+ * parsing the request, or while doing the API call, then must send reply back
+ * with only the error return value in the msg!!! It's important that if
+ * an error does occur, the "send_reply" function is used; otherwise the socket
+ * will get written with too much extraneous stuff; the remote side will
+ * only read the TSMgmtError type since that's all it expects to be in the message
+ * (for an TSMgmtError != TS_ERR_OKAY).
+ */
+
+/**************************************************************************
+ * handle_record_get
+ *
+ * purpose: handles requests to retrieve values of certain variables
+ *          in TM. (see local/TSCtrlFunc.cc)
+ * input: socket information
+ *        req - the msg sent (should = record name to get)
+ * output: SUCC or ERR
+ * note:
+ *************************************************************************/
+TSMgmtError
+handle_record_get(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret;
+  TSRecordEle *ele;
+
+  // parse msg - don't really need since the request itself is the record name
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_FAIL);
+    return ret;
+  }
+  // call CoreAPI call on Traffic Manager side
+  ele = TSRecordEleCreate();
+  ret = MgmtRecordGet(req, ele);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    TSRecordEleDestroy(ele);
+    return ret;
+  }
+  // create and send reply back to client
+  switch (ele->rec_type) {
+  case TS_REC_INT:
+    ret = send_record_get_reply(sock_info, ret, &(ele->valueT.int_val), sizeof(TSInt), ele->rec_type, ele->rec_name);
+    break;
+  case TS_REC_COUNTER:
+    ret = send_record_get_reply(sock_info, ret, &(ele->valueT.counter_val), sizeof(TSCounter),
+                                ele->rec_type, ele->rec_name);
+    break;
+  case TS_REC_FLOAT:
+    ret = send_record_get_reply(sock_info, ret, &(ele->valueT.float_val), sizeof(TSFloat), ele->rec_type, ele->rec_name);
+    break;
+  case TS_REC_STRING:
+    ret = send_record_get_reply(sock_info, ret, ele->valueT.string_val, strlen(ele->valueT.string_val),
+                                ele->rec_type, ele->rec_name);
+    break;
+  default:                     // invalid record type
+    ret = send_reply(sock_info, TS_ERR_FAIL);
+    TSRecordEleDestroy(ele);
+    return ret;
+  }
+
+  if (ret != TS_ERR_OKAY) {    // error sending reply
+    ret = send_reply(sock_info, ret);
+  }
+
+  TSRecordEleDestroy(ele);     // free any memory allocated by CoreAPI call
+
+  return ret;
+}
+
+struct record_match_state {
+  TSMgmtError     err;
+  SocketInfo  sock;
+  DFA         regex;
+};
+
+static void
+send_record_match(RecT /* rec_type */, void *edata, int /* registered */, const char *name, int data_type, RecData *rec_val)
+{
+  record_match_state *match = (record_match_state *)edata ;
+
+  if (match->err != TS_ERR_OKAY) {
+    return;
+  }
+
+  if (match->regex.match(name) >= 0) {
+    switch (data_type) {
+    case RECD_INT:
+      match->err = send_record_get_reply(match->sock, TS_ERR_OKAY, &(rec_val->rec_int), sizeof(TSInt), TS_REC_INT, name);
+      break;
+    case RECD_COUNTER:
+      match->err = send_record_get_reply(match->sock, TS_ERR_OKAY, &(rec_val->rec_counter), sizeof(TSCounter), TS_REC_COUNTER, name);
+      break;
+    case RECD_STRING:
+      // For NULL string parameters, end the literal "NULL" to match the behavior of MgmtRecordGet().
+      if (rec_val->rec_string) {
+        match->err = send_record_get_reply(match->sock, TS_ERR_OKAY, rec_val->rec_string, strlen(rec_val->rec_string), TS_REC_STRING, name);
+      } else {
+        match->err = send_record_get_reply(match->sock, TS_ERR_OKAY, (void *)"NULL", strlen("NULL"), TS_REC_STRING, name);
+      }
+      break;
+    case RECD_FLOAT:
+      match->err = send_record_get_reply(match->sock, TS_ERR_OKAY, &(rec_val->rec_float), sizeof(TSFloat), TS_REC_FLOAT, name);
+      break;
+    default:
+      break; // skip it
+    }
+  }
+}
+
+TSMgmtError
+handle_record_match(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret;
+  record_match_state match;
+
+  // parse msg - don't really need since the request itself is the regex itself
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_FAIL);
+    return ret;
+  }
+
+  if (match.regex.compile(req, RE_CASE_INSENSITIVE) != 0) {
+    ret = send_reply(sock_info, TS_ERR_FAIL);
+    return ret;
+  }
+
+  match.err = TS_ERR_OKAY;
+  match.sock = sock_info;
+
+  RecDumpRecords(RECT_NULL, send_record_match, &match);
+
+  // If successful, send a list terminator.
+  if (match.err == TS_ERR_OKAY) {
+    return send_record_get_reply(sock_info, TS_ERR_OKAY, NULL, 0, TS_REC_UNDEFINED, NULL);
+  }
+
+  return match.err;
+}
+
+/**************************************************************************
+ * handle_record_set
+ *
+ * purpose: handles a set request sent by the client
+ * input: sock_info
+ * output: SUCC or ERR
+ * note: request format = <record name>DELIMITER<record_value>
+ *************************************************************************/
+TSMgmtError
+handle_record_set(struct SocketInfo sock_info, char *req)
+{
+  char *name, *val;
+  TSMgmtError ret;
+  TSActionNeedT action = TS_ACTION_UNDEFINED;
+
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;
+  }
+  // parse request msg
+  ret = parse_request_name_value(req, &name, &val);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    ats_free(name);
+    return ret;
+  }
+  // call CoreAPI call on Traffic Manager side
+  ret = MgmtRecordSet(name, val, &action);
+  ats_free(name);
+  ats_free(val);
+
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    return ret;
+  }
+  // create and send reply back to client
+  ret = send_record_set_reply(sock_info, ret, action);
+
+  return ret;
+}
+
+/**************************************************************************
+ * handle_file_read
+ *
+ * purpose: handles request to read a file
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: SUCC or ERR
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_file_read(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret;
+  int size, version;
+  TSFileNameT file;
+  char *text;
+
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;
+  }
+  // first parse the message to retrieve needed data
+  ret = parse_file_read_request(req, &file);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    return ret;
+  }
+  // make CoreAPI call on Traffic Manager side
+  ret = ReadFile(file, &text, &size, &version);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    return ret;
+  }
+  // marshal the file info message that can be returned to client
+  ret = send_file_read_reply(sock_info, ret, version, size, text);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+  }
+  ats_free(text);                // free memory allocated by ReadFile
+
+  return ret;
+}
+
+/**************************************************************************
+ * handle_file_write
+ *
+ * purpose: handles request to write a file
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: SUCC or ERR
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_file_write(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret;
+  int size, version;
+  TSFileNameT file;
+  char *text;
+
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;
+  }
+  // first parse the message
+  ret = parse_file_write_request(req, &file, &version, &size, &text);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    return ret;
+  }
+  // make CoreAPI call on Traffic Manager side
+  ret = WriteFile(file, text, size, version);
+  ret = send_reply(sock_info, ret);
+  ats_free(text);                // free memory allocated by parsing fn.
+
+  return ret;
+}
+
+
+/**************************************************************************
+ * handle_proxy_state_get
+ *
+ * purpose: handles request to get the state of the proxy (TS)
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_proxy_state_get(struct SocketInfo sock_info)
+{
+  TSProxyStateT state;
+  TSMgmtError ret;
+
+  // make coreAPI call on local side
+  state = ProxyStateGet();
+
+  // send reply back
+  ret = send_proxy_state_get_reply(sock_info, state);
+
+  return ret;                   //shouldn't get here
+}
+
+/**************************************************************************
+ * handle_proxy_state_set
+ *
+ * purpose: handles the request to set the state of the proxy (TS)
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ *        req - indicates which state to set it to (on/off?) and specifies
+ *        what to set the ts options too (optional)
+ * output: TS_ERR_xx
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_proxy_state_set(struct SocketInfo sock_info, char *req)
+{
+  TSProxyStateT state;
+  TSCacheClearT clear;
+  TSMgmtError ret;
+
+  if (!req) {
+    ret = TS_ERR_FAIL;
+    goto END;
+  }
+  // the req should specify the state and any cache clearing options
+  ret = parse_proxy_state_request(req, &state, &clear);
+  if (ret != TS_ERR_OKAY) {
+    goto END;
+  }
+
+  ret = ProxyStateSet(state, clear);
+
+END:
+  ret = send_reply(sock_info, ret);
+  return ret;
+}
+
+/**************************************************************************
+ * handle_reconfigure
+ *
+ * purpose: handles request to reread the config files
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_reconfigure(struct SocketInfo sock_info)
+{
+  TSMgmtError ret;
+
+  // make local side coreAPI call
+  ret = Reconfigure();
+
+  ret = send_reply(sock_info, ret);
+  return ret;
+}
+
+/**************************************************************************
+ * handle_restart
+ *
+ * purpose: handles request to restart TM and TS
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ *        req - indicates if restart should be cluster wide or not
+ *        bounce - indicate if the restart is a traffic_server bounce only
+ * output: TS_ERR_xx
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_restart(struct SocketInfo sock_info, char *req, bool bounce)
+{
+  int16_t cluster;
+  TSMgmtError ret;
+
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;                 // shouldn't get here
+  }
+  // the req should be a boolean value - typecase it
+  memcpy(&cluster, req, SIZE_BOOL);
+
+  // cluster == 0 means no cluster
+  if (bounce)
+    ret = Bounce(0 != cluster);
+  else
+    ret = Restart(0 != cluster);
+
+  ret = send_reply(sock_info, ret);
+  return ret;
+}
+
+/**************************************************************************
+ * handle_storage_device_cmd_offline
+ *
+ * purpose: handle storage offline command.
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: None
+ *************************************************************************/
+TSMgmtError
+handle_storage_device_cmd_offline(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret = TS_ERR_OKAY;
+
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;                 // shouldn't get here
+  }
+  // forward to server
+  lmgmt->signalEvent(MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE, req);
+  ret = send_reply(sock_info, ret);
+  return ret;
+}
+
+/**************************************************************************
+ * handle_event_resolve
+ *
+ * purpose: handles request to resolve an event
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: the req should be the event name
+ *************************************************************************/
+TSMgmtError
+handle_event_resolve(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret;
+
+  // parse msg - don't really need since the request itself is the record name
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;                 // shouldn't get here
+  }
+  // call CoreAPI call on Traffic Manager side; req == event_name
+  ret = EventResolve(req);
+  ret = send_reply(sock_info, ret);
+
+  return ret;
+}
+
+/**************************************************************************
+ * handle_event_get_mlt
+ *
+ * purpose: handles request to get list of active events
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: the req should be the event name
+ *************************************************************************/
+TSMgmtError
+handle_event_get_mlt(struct SocketInfo sock_info)
+{
+  TSMgmtError ret;
+  LLQ *event_list;
+  char buf[MAX_BUF_SIZE];
+  char *event_name;
+  int buf_pos = 0;
+
+  event_list = create_queue();
+
+  // call CoreAPI call on Traffic Manager side; req == event_name
+  ret = ActiveEventGetMlt(event_list);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    delete_queue(event_list);
+    return ret;
+  }
+  // iterate through list and put into a delimited string list
+  memset(buf, 0, MAX_BUF_SIZE);
+  while (!queue_is_empty(event_list)) {
+    event_name = (char *) dequeue(event_list);
+    if (event_name) {
+      snprintf(buf + buf_pos, (MAX_BUF_SIZE - buf_pos), "%s%c", event_name, REMOTE_DELIM);
+      buf_pos += (strlen(event_name) + 1);
+      ats_free(event_name);        //free the llq entry
+    }
+  }
+  buf[buf_pos] = '\0';          //end the string
+
+  ret = send_reply_list(sock_info, ret, buf);
+
+  delete_queue(event_list);
+  return ret;
+}
+
+/**************************************************************************
+ * handle_event_active
+ *
+ * purpose: handles request to resolve an event
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: the req should be the event name
+ *************************************************************************/
+TSMgmtError
+handle_event_active(struct SocketInfo sock_info, char *req)
+{
+  TSMgmtError ret;
+  bool active;
+
+  // parse msg - don't really need since the request itself is the record name
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;                 // shouldn't get here
+  }
+  // call CoreAPI call on Traffic Manager side; req == event_name
+  ret = EventIsActive(req, &active);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    return ret;                 //shouldn't get here
+  }
+
+  ret = send_event_active_reply(sock_info, ret, active);
+
+  return ret;
+}
+
+
+/**************************************************************************
+ * handle_snapshot
+ *
+ * purpose: handles request to take/remove/restore a snapshot
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ *        req - the snapshot name
+ *        op  - SNAPSHOT_TAKE, SNAPSHOT_REMOVE, or SNAPSHOT_RESTORE
+ * output: TS_ERR_xx
+ *************************************************************************/
+TSMgmtError
+handle_snapshot(struct SocketInfo sock_info, char *req, OpType op)
+{
+  TSMgmtError ret;
+
+  if (!req) {
+    ret = send_reply(sock_info, TS_ERR_PARAMS);
+    return ret;
+  }
+  // call CoreAPI call on Traffic Manager side; req == snap_name
+  switch (op) {
+  case SNAPSHOT_TAKE:
+    ret = SnapshotTake(req);
+    break;
+  case SNAPSHOT_RESTORE:
+    ret = SnapshotRestore(req);
+    break;
+  case SNAPSHOT_REMOVE:
+    ret = SnapshotRemove(req);
+    break;
+  default:
+    ret = TS_ERR_FAIL;
+    break;
+  }
+
+  ret = send_reply(sock_info, ret);
+  return ret;
+}
+
+/**************************************************************************
+ * handle_snapshot_get_mlt
+ *
+ * purpose: handles request to get list of snapshots
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ * output: TS_ERR_xx
+ * note: the req should be the event name
+ *************************************************************************/
+TSMgmtError
+handle_snapshot_get_mlt(struct SocketInfo sock_info)
+{
+  TSMgmtError ret;
+  LLQ *snap_list;
+  char buf[MAX_BUF_SIZE];
+  char *snap_name;
+  int buf_pos = 0;
+
+  snap_list = create_queue();
+
+  // call CoreAPI call on Traffic Manager side; req == event_name
+  ret = SnapshotGetMlt(snap_list);
+  if (ret != TS_ERR_OKAY) {
+    ret = send_reply(sock_info, ret);
+    delete_queue(snap_list);
+    return ret;
+  }
+  // iterate through list and put into a delimited string list
+  memset(buf, 0, MAX_BUF_SIZE);
+  while (!queue_is_empty(snap_list)) {
+    snap_name = (char *) dequeue(snap_list);
+    if (snap_name) {
+      snprintf(buf + buf_pos, (MAX_BUF_SIZE - buf_pos), "%s%c", snap_name, REMOTE_DELIM);
+      buf_pos += (strlen(snap_name) + 1);
+      ats_free(snap_name);         //free the llq entry
+    }
+  }
+  buf[buf_pos] = '\0';          //end the string
+
+  ret = send_reply_list(sock_info, ret, buf);
+
+  delete_queue(snap_list);
+  return ret;
+}
+
+
+/**************************************************************************
+ * handle_diags
+ *
+ * purpose: handles diags request
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ *        req - the diag message (already formatted with arguments)
+ * output: TS_ERR_xx
+ *************************************************************************/
+TSMgmtError
+handle_diags(struct SocketInfo /* sock_info ATS_UNUSED */, char *req)
+{
+  TSMgmtError ret;
+  TSDiagsT mode;
+  char *diag_msg = NULL;
+  DiagsLevel level;
+
+  if (!req)
+    goto Lerror;
+
+  ret = parse_diags_request(req, &mode, &diag_msg);
+  if (ret != TS_ERR_OKAY)
+    goto Lerror;
+
+
+  switch (mode) {
+  case TS_DIAG_DIAG:
+    level = DL_Diag;
+    break;
+  case TS_DIAG_DEBUG:
+    level = DL_Debug;
+    break;
+  case TS_DIAG_STATUS:
+    level = DL_Status;
+    break;
+  case TS_DIAG_NOTE:
+    level = DL_Note;
+    break;
+  case TS_DIAG_WARNING:
+    level = DL_Warning;
+    break;
+  case TS_DIAG_ERROR:
+    level = DL_Error;
+    break;
+  case TS_DIAG_FATAL:
+    level = DL_Fatal;
+    break;
+  case TS_DIAG_ALERT:
+    level = DL_Alert;
+    break;
+  case TS_DIAG_EMERGENCY:
+    level = DL_Emergency;
+    break;
+  default:
+    level = DL_Diag;            //default value should be Diag not UNDEFINED
+  }
+
+  if (diags_init) {
+    diags->print("TSMgmtAPI", DTA(level), "%s", diag_msg);
+    ats_free(diag_msg);
+    return TS_ERR_OKAY;
+  }
+
+Lerror:
+  ats_free(diag_msg);
+  return TS_ERR_FAIL;
+}
+
+/**************************************************************************
+ * handle_stats_reset
+ *
+ * purpose: handles request to reset statistics to default values
+ * input: struct SocketInfo sock_info - the socket to use to talk to client
+ *        req - should be NULL
+ *        op - reset type (cluster or node)
+ * output: TS_ERR_xx
+ *************************************************************************/
+TSMgmtError
+handle_stats_reset(struct SocketInfo sock_info, char *req, OpType op)
+{
+  TSMgmtError ret;
+
+  ret = StatsReset(op == STATS_RESET_CLUSTER, req);
+  ret = send_reply(sock_info, ret);
+
+  return ret;
+}
diff --git a/mgmt/api/TSControlMain.h b/mgmt/api/TSControlMain.h
new file mode 100644
index 00000000..59dfa8a7
--- /dev/null
+++ b/mgmt/api/TSControlMain.h
@@ -0,0 +1,76 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ * Filename: TSControlMain.h
+ * Purpose: The main section for traffic server that handles all the request
+ *          from the user.
+ * Created: 6/26/00
+ * Created by: Stephanie Song
+ *
+ ***************************************************************************/
+
+#ifndef TS_CONTROL_MAIN_H
+#define TS_CONTROL_MAIN_H
+
+#include "WebUtils.h"           // for SocketInfo
+#include "mgmtapi.h"
+#include "NetworkUtilsDefs.h"
+
+typedef struct
+{
+  SocketInfo sock_info;
+  struct sockaddr *adr;
+} ClientT;
+
+ClientT *create_client();
+void delete_client(ClientT * client);
+
+void *ts_ctrl_main(void *arg);
+
+TSMgmtError handle_record_get(struct SocketInfo sock_info, char *req);
+TSMgmtError handle_record_match(struct SocketInfo sock_info, char *req);
+TSMgmtError handle_record_set(struct SocketInfo sock_info, char *req);
+
+TSMgmtError handle_file_read(struct SocketInfo sock_info, char *req);
+TSMgmtError handle_file_write(struct SocketInfo sock_info, char *req);
+
+TSMgmtError handle_proxy_state_get(struct SocketInfo sock_info);
+TSMgmtError handle_proxy_state_set(struct SocketInfo sock_info, char *req);
+TSMgmtError handle_reconfigure(struct SocketInfo sock_info);
+TSMgmtError handle_restart(struct SocketInfo sock_info, char *req, bool bounce);
+TSMgmtError handle_storage_device_cmd_offline(struct SocketInfo sock_info, char *req);
+
+TSMgmtError handle_event_resolve(struct SocketInfo sock_info, char *req);
+TSMgmtError handle_event_get_mlt(struct SocketInfo sock_info);
+TSMgmtError handle_event_active(struct SocketInfo sock_info, char *req);
+
+TSMgmtError handle_snapshot(struct SocketInfo sock_info, char *req, OpType op);
+TSMgmtError handle_snapshot_get_mlt(struct SocketInfo sock_info);
+
+TSMgmtError handle_diags(struct SocketInfo sock_info, char *req);
+
+TSMgmtError handle_stats_reset(struct SocketInfo sock_info, char *req, OpType op);
+
+
+#endif
diff --git a/mgmt/api/include/Makefile.am b/mgmt/api/include/Makefile.am
new file mode 100644
index 00000000..31762e40
--- /dev/null
+++ b/mgmt/api/include/Makefile.am
@@ -0,0 +1,22 @@
+# mgmt/api/include Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+library_includedir=$(includedir)/ts
+
+library_include_HEADERS = \
+  mgmtapi.h
diff --git a/mgmt/api/include/Makefile.in b/mgmt/api/include/Makefile.in
new file mode 100644
index 00000000..66535ec5
--- /dev/null
+++ b/mgmt/api/include/Makefile.in
@@ -0,0 +1,811 @@
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+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
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+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
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+
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+#      http://www.apache.org/licenses/LICENSE-2.0
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+  mgmtapi.h
+
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+
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign mgmt/api/include/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign mgmt/api/include/Makefile
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+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
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+	done
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+	$(am__define_uniq_tagged_files); \
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+	      "$$@" $$unique; \
+	  else \
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+	      $$unique; \
+	  fi; \
+	fi
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+
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+	     $$unique
+
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
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+
+distdir: $(DISTFILES)
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+	list='$(DISTFILES)'; \
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+	  sed -e "s|^$$srcdirstrip/||;t" \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+			   sort -u` ;; \
+	esac; \
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+	    || exit 1; \
+	  fi; \
+	done
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+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
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+
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/mgmt/api/include/mgmtapi.h b/mgmt/api/include/mgmtapi.h
new file mode 100644
index 00000000..c9fc90d4
--- /dev/null
+++ b/mgmt/api/include/mgmtapi.h
@@ -0,0 +1,1389 @@
+/** @file
+
+  Definitions for internal management API.
+
+  Purpose: This file contains all API wrapper functions in one class. In
+  order to eliminate the interdependencies of other library calls, new
+  types and structs will be defined and used in the wrapper function calls.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __TS_MGMT_API_H__
+#define __TS_MGMT_API_H__
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/***************************************************************************
+ * System Specific Items
+ ***************************************************************************/
+
+#define tsapi
+#define inkexp
+#define inkimp
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+#define __TS_RES_PATH(x)   #x
+#define _TS_RES_PATH(x)    __TS_RES_PATH (x)
+#define TS_RES_PATH(x)     x __FILE__ ":" _TS_RES_PATH (__LINE__)
+#define TS_RES_MEM_PATH    TS_RES_PATH ("memory/")
+
+/***************************************************************************
+ * Error and Return Values
+ ***************************************************************************/
+
+  typedef enum
+  {
+    TS_ERR_OKAY = 0,
+
+    TS_ERR_READ_FILE,          /* Error occur in reading file */
+    TS_ERR_WRITE_FILE,         /* Error occur in writing file */
+    TS_ERR_PARSE_CONFIG_RULE,  /* Error in parsing configuration file */
+    TS_ERR_INVALID_CONFIG_RULE,        /* Invalid Configuration Rule */
+
+    TS_ERR_NET_ESTABLISH,      /* Problem in establishing a TCP socket */
+    TS_ERR_NET_READ,           /* Problem reading from socket */
+    TS_ERR_NET_WRITE,          /* Problem writing to socket */
+    TS_ERR_NET_EOF,            /* Hit socket EOF */
+    TS_ERR_NET_TIMEOUT,        /* Timed out while waiting for socket read */
+
+    TS_ERR_SYS_CALL,           /* Error in basic system call, eg. malloc */
+    TS_ERR_PARAMS,             /* Invalid parameters for a fn */
+
+    TS_ERR_FAIL
+  } TSMgmtError;
+
+/***************************************************************************
+ * Constants
+ ***************************************************************************/
+
+#define TS_INVALID_HANDLE       NULL
+#define TS_INVALID_LIST         TS_INVALID_HANDLE
+#define TS_INVALID_CFG_CONTEXT  TS_INVALID_HANDLE
+#define TS_INVALID_THREAD       TS_INVALID_HANDLE
+#define TS_INVALID_MUTEX        TS_INVALID_HANDLE
+
+#define TS_INVALID_IP_ADDR      NULL
+#define TS_INVALID_IP_CIDR      -1
+#define TS_INVALID_PORT         0
+
+#define TS_SSPEC_TIME           0x1
+#define TS_SSPEC_SRC_IP         0x2
+#define TS_SSPEC_PREFIX         0x4
+#define TS_SSPEC_SUFFIX         0x8
+#define TS_SSPEC_PORT           0x10
+#define TS_SSPEC_METHOD         0x20
+#define TS_SSPEC_SCHEME         0x40
+
+#define TS_ENCRYPT_PASSWD_LEN   23
+
+/***************************************************************************
+ * Types
+ ***************************************************************************/
+
+  typedef int64_t TSInt;
+  typedef int64_t TSCounter;
+  typedef float TSFloat;
+  typedef char *TSString;
+  typedef char *TSIpAddr;
+
+  typedef void *TSHandle;
+  typedef TSHandle TSList;
+  typedef TSHandle TSIpAddrList;      /* contains TSIpAddrEle *'s */
+  typedef TSHandle TSPortList;        /* conatins TSPortEle *'s   */
+  typedef TSHandle TSDomainList;      /* contains TSDomain *'s    */
+  typedef TSHandle TSStringList;      /* contains char* 's         */
+  typedef TSHandle TSIntList; /* contains int* 's          */
+
+  typedef TSHandle TSCfgContext;
+  typedef TSHandle TSCfgIterState;
+
+/*--- basic control operations --------------------------------------------*/
+
+  typedef enum
+  {
+    TS_ACTION_SHUTDOWN,        /* change requires user to stop then start the Traffic Server and Manager (restart Traffic Cop) */
+    TS_ACTION_RESTART,         /* change requires restart Traffic Server and Traffic Manager */
+    TS_ACTION_DYNAMIC,         /* change is already made in function call */
+    TS_ACTION_RECONFIGURE,     /* change requires TS to reread configuration files */
+    TS_ACTION_UNDEFINED
+  } TSActionNeedT;
+
+  typedef enum
+  {
+    TS_PROXY_ON,
+    TS_PROXY_OFF,
+    TS_PROXY_UNDEFINED
+  } TSProxyStateT;
+
+/* used when starting Traffic Server process */
+  typedef enum
+  {
+    TS_CACHE_CLEAR_ON,         /* run TS in  "clear entire cache" mode */
+    TS_CACHE_CLEAR_HOSTDB,     /* run TS in "only clear the host db cache" mode */
+    TS_CACHE_CLEAR_OFF         /* starts TS in regualr mode w/o any options */
+  } TSCacheClearT;
+
+/*--- diagnostic output operations ----------------------------------------*/
+
+  typedef enum
+  {
+    TS_DIAG_DIAG,
+    TS_DIAG_DEBUG,
+    TS_DIAG_STATUS,
+    TS_DIAG_NOTE,
+    TS_DIAG_WARNING,
+    TS_DIAG_ERROR,
+    TS_DIAG_FATAL,             /* >= FATAL severity causes process termination */
+    TS_DIAG_ALERT,
+    TS_DIAG_EMERGENCY,
+    TS_DIAG_UNDEFINED
+  } TSDiagsT;
+
+/*--- event operations ----------------------------------------------------*/
+  typedef enum
+  {
+    TS_EVENT_PRIORITY_WARNING,
+    TS_EVENT_PRIORITY_ERROR,
+    TS_EVENT_PRIORITY_FATAL,
+    TS_EVENT_PRIORITY_UNDEFINED
+  } TSEventPriorityT;
+
+/*--- abstract file operations --------------------------------------------*/
+
+  typedef enum
+  {
+    TS_ACCESS_NONE,            /* no access */
+    TS_ACCESS_MONITOR,         /* monitor only access */
+    TS_ACCESS_MONITOR_VIEW,    /* monitor and view configuration access */
+    TS_ACCESS_MONITOR_CHANGE,  /* monitor and change configuration access */
+    TS_ACCESS_UNDEFINED
+  } TSAccessT;
+
+  typedef enum
+  {
+    TS_REC_INT,
+    TS_REC_COUNTER,
+    TS_REC_FLOAT,
+    TS_REC_STRING,
+    TS_REC_UNDEFINED
+  } TSRecordT;
+
+  typedef enum
+  {
+    TS_IP_SINGLE,              /* single ip address */
+    TS_IP_RANGE,               /* range ip address, eg. 1.1.1.1-2.2.2.2 */
+    TS_IP_UNDEFINED
+  } TSIpAddrT;
+
+  typedef enum
+  {
+    TS_CON_TCP,                /* TCP connection */
+    TS_CON_UDP,                /* UDP connection */
+    TS_CON_UNDEFINED
+  } TSConnectT;
+
+  typedef enum                  /* primary destination types */
+  {
+    TS_PD_DOMAIN,              /* domain name */
+    TS_PD_HOST,                /* hostname */
+    TS_PD_IP,                  /* ip address */
+    TS_PD_URL_REGEX,           /* regular expression in url */
+    TS_PD_URL,           /* regular expression in url */
+    TS_PD_UNDEFINED
+  } TSPrimeDestT;
+
+  typedef enum                  /* header information types */
+  {
+    TS_HDR_DATE,
+    TS_HDR_HOST,
+    TS_HDR_COOKIE,
+    TS_HDR_CLIENT_IP,
+    TS_HDR_UNDEFINED
+  } TSHdrT;
+
+  typedef enum                  /* indicate if ICP parent cache or ICP sibling cache */
+  {
+    TS_ICP_PARENT,
+    TS_ICP_SIBLING,
+    TS_ICP_UNDEFINED
+  } TSIcpT;
+
+  /* TODO: This should be removed */
+  typedef enum                  /* access privileges to news articles cached by Traffic Server  */
+  {
+    TS_IP_ALLOW_ALLOW,
+    TS_IP_ALLOW_DENY,
+    TS_IP_ALLOW_UNDEFINED
+  } TSIpAllowT;
+
+  typedef enum                  /* multicast time to live options */
+  {
+    TS_MC_TTL_SINGLE_SUBNET,   /* forward multicast datagrams to single subnet */
+    TS_MC_TTL_MULT_SUBNET,     /* deliver multicast to more than one subnet */
+    TS_MC_TTL_UNDEFINED
+  } TSMcTtlT;
+
+  typedef enum                  /* tells Traffic Server to accept or reject records satisfying filter condition */
+  {
+    TS_LOG_FILT_ACCEPT,
+    TS_LOG_FILT_REJECT,
+    TS_LOG_FILT_UNDEFINED
+  } TSLogFilterActionT;
+
+  typedef enum                  /* possible conditional operators used in filters */
+  {
+    TS_LOG_COND_MATCH,         /* true if filter's field and value are idential; case-sensitive */
+    TS_LOG_COND_CASE_INSENSITIVE_MATCH,
+    TS_LOG_COND_CONTAIN,       /* true if field contains the value; case-sensitive */
+    TS_LOG_COND_CASE_INSENSITIVE_CONTAIN,
+    TS_LOG_COND_UNDEFINED
+  } TSLogConditionOpT;
+
+  typedef enum                  /* valid logging modes for LogObject's */
+  {
+    TS_LOG_MODE_ASCII,
+    TS_LOG_MODE_BINARY,
+    TS_LOG_ASCII_PIPE,
+    TS_LOG_MODE_UNDEFINED
+  } TSLogModeT;
+
+  typedef enum                  /* methods of specifying groups of clients */
+  {
+    TS_CLIENT_GRP_IP,          /* ip range */
+    TS_CLIENT_GRP_DOMAIN,      /* domain */
+    TS_CLIENT_GRP_HOSTNAME,    /* hostname */
+    TS_CLIENT_GRP_UNDEFINED
+  } TSClientGroupT;
+
+  typedef enum
+  {
+    TS_RR_TRUE,                /* go through parent cache list in round robin */
+    TS_RR_STRICT,              /* Traffic Server machines serve requests striclty in turn */
+    TS_RR_FALSE,               /* no round robin selection */
+    TS_RR_NONE,                /* no round-robin action tag specified */
+    TS_RR_UNDEFINED
+  } TSRrT;
+
+  typedef enum                  /* a request URL method; used in Secondary Specifiers */
+  {
+    TS_METHOD_NONE,
+    TS_METHOD_GET,
+    TS_METHOD_POST,
+    TS_METHOD_PUT,
+    TS_METHOD_TRACE,
+    TS_METHOD_PUSH,
+    TS_METHOD_UNDEFINED
+  } TSMethodT;
+
+  typedef enum                  /*  possible URL schemes */
+  {
+    TS_SCHEME_NONE,
+    TS_SCHEME_HTTP,
+    TS_SCHEME_HTTPS,
+    TS_SCHEME_UNDEFINED
+  } TSSchemeT;
+
+  typedef enum                  /* possible schemes to divide volume by */
+  {
+    TS_VOLUME_HTTP,
+    TS_VOLUME_UNDEFINED
+  } TSVolumeSchemeT;
+
+  typedef enum                  /* specifies how size is specified */
+  {
+    TS_SIZE_FMT_PERCENT,       /* as a percentage */
+    TS_SIZE_FMT_ABSOLUTE,      /* as an absolute value */
+    TS_SIZE_FMT_UNDEFINED
+  } TSSizeFormatT;
+
+  typedef enum
+  {
+    TS_HTTP_CONGEST_PER_IP,
+    TS_HTTP_CONGEST_PER_HOST,
+    TS_HTTP_CONGEST_UNDEFINED
+  } TSCongestionSchemeT;
+
+  typedef enum
+  {
+    TS_PROTOCOL_DNS,
+    TS_PROTOCOL_UNDEFINED
+  } TSProtocolT;
+
+  typedef enum
+  {
+    TS_FNAME_CACHE_OBJ,        /* cache.config */
+    TS_FNAME_CONGESTION,       /* congestion.config */
+    TS_FNAME_HOSTING,          /* hosting.config */
+    TS_FNAME_ICP_PEER,         /* icp.config */
+    TS_FNAME_IP_ALLOW,         /* ip_allow.config */
+    TS_FNAME_LOGS_XML,         /* logs_xml.config */
+    TS_FNAME_PARENT_PROXY,     /* parent.config */
+    TS_FNAME_VOLUME,           /* volume.config */
+    TS_FNAME_PLUGIN,           /* plugin.config */
+    TS_FNAME_REMAP,            /* remap.config */
+    TS_FNAME_SOCKS,            /* socks.config */
+    TS_FNAME_SPLIT_DNS,        /* splitdns.config */
+    TS_FNAME_STORAGE,          /* storage.config */
+    TS_FNAME_UPDATE_URL,       /* update.config */
+    TS_FNAME_VADDRS,           /* vaddrs.config */
+    TS_FNAME_VSCAN,            /* vscan.config */
+    TS_FNAME_VS_TRUSTED_HOST,  /* trusted-host.config */
+    TS_FNAME_VS_EXTENSION,     /* extensions.config */
+    TS_FNAME_UNDEFINED
+  } TSFileNameT;
+
+
+/* Each rule type within a file has its own enumeration.
+ * Need this enumeration because it's possible there are different Ele's used
+ * for rule types within the same file
+ */
+  typedef enum
+  {
+    TS_CACHE_NEVER,            /* cache.config */
+    TS_CACHE_IGNORE_NO_CACHE,
+    TS_CACHE_CLUSTER_CACHE_LOCAL,
+    TS_CACHE_IGNORE_CLIENT_NO_CACHE,
+    TS_CACHE_IGNORE_SERVER_NO_CACHE,
+    TS_CACHE_PIN_IN_CACHE,
+    TS_CACHE_REVALIDATE,
+    TS_CACHE_TTL_IN_CACHE,
+    TS_CACHE_AUTH_CONTENT,
+    TS_CONGESTION,             /* congestion.config */
+    TS_HOSTING,                /* hosting.config */
+    TS_ICP,                    /* icp.config */
+    TS_IP_ALLOW,               /* ip_allow.config */
+    TS_LOG_FILTER,             /* logs_xml.config */
+    TS_LOG_OBJECT,
+    TS_LOG_FORMAT,
+    TS_PP_PARENT,              /* parent.config */
+    TS_PP_GO_DIRECT,
+    TS_VOLUME,              /* volume.config */
+    TS_PLUGIN,                 /* plugin.config */
+    TS_REMAP_MAP,              /* remap.config */
+    TS_REMAP_REVERSE_MAP,
+    TS_REMAP_REDIRECT,
+    TS_REMAP_REDIRECT_TEMP,
+    TS_SOCKS_BYPASS,           /* socks.config */
+    TS_SOCKS_AUTH,
+    TS_SOCKS_MULTIPLE,
+    TS_SPLIT_DNS,              /* splitdns.config */
+    TS_STORAGE,                /* storage.config */
+    TS_UPDATE_URL,             /* update.config */
+    TS_VADDRS,                 /* vaddrs.config */
+    TS_TYPE_UNDEFINED,
+    TS_TYPE_COMMENT            /* for internal use only */
+  } TSRuleTypeT;
+
+  /* These are initialization options for the Init() function. */
+  typedef enum
+  {
+    TS_MGMT_OPT_DEFAULTS = 0,
+    TS_MGMT_OPT_NO_EVENTS,      /* No event callbacks and threads */
+    TS_MGMT_OPT_NO_SOCK_TESTS  /* No socket test thread */
+  } TSInitOptionT;
+
+
+/***************************************************************************
+ * Structures
+ ***************************************************************************/
+
+/*--- general -------------------------------------------------------------*/
+
+  typedef struct
+  {
+    int d;                      /* days */
+    int h;                      /* hours */
+    int m;                      /* minutes */
+    int s;                      /* seconds */
+  } TSHmsTime;
+
+/*--- records -------------------------------------------------------------*/
+
+  typedef struct
+  {
+    char *rec_name;             /* record name */
+    TSRecordT rec_type;        /* record type {TS_REC_INT...} */
+    union
+    {                           /* record value */
+      TSInt int_val;
+      TSCounter counter_val;
+      TSFloat float_val;
+      TSString string_val;
+    } valueT;
+  } TSRecordEle;
+
+/*--- events --------------------------------------------------------------*/
+
+/* Note: Each event has a format String associated with it from which the
+ *       description is constructed when an event is signalled. This format
+ *       string though can be retrieved from the event-mapping table which
+ *       is stored both locally and remotely.
+ */
+
+  typedef struct
+  {
+    int id;
+    char *name;                 /* pre-set, immutable for PREDEFINED events */
+    char *description;          /* predefined events have default */
+    TSEventPriorityT priority; /* WARNING, ERROR, FATAL */
+  } TSMgmtEvent;
+
+/* Will not be used until new Cougar Event Processor */
+  typedef struct
+  {
+    char *name;
+    /*int signalCount; *//* 0 is inactive, >= 1 is active event */
+    /*unsigned long timestamp; *//* only applies to active events */
+  } TSActiveEvent;
+
+
+/*--- abstract file operations --------------------------------------------*/
+
+  typedef struct
+  {
+    TSIpAddrT type;            /* single ip or an ip-range */
+    TSIpAddr ip_a;             /* first ip */
+    int cidr_a;                 /* CIDR value, 0 if not defined */
+    int port_a;                 /* port, 0 if not defined */
+    TSIpAddr ip_b;             /* second ip (if ip-range) */
+    int cidr_b;                 /* CIDR value, 0 if not defined */
+    int port_b;                 /* port, 0 if not defined */
+  } TSIpAddrEle;
+
+  typedef struct
+  {
+    int port_a;                 /* first port */
+    int port_b;                 /* second port (0 if not a port range) */
+  } TSPortEle;
+
+  typedef struct
+  {
+    char *domain_val;           /* a server name can be specified by name or IP address */
+    /* used for www.host.com:8080 or 11.22.33.44:8000 */
+    int port;                   /* (optional) */
+  } TSDomain;
+
+/* there are a variety of secondary specifiers that can be used in a rule; more than
+ * one secondary specifier can be used per rule, but a secondary specifier can only
+ * be used once per rule (eg. time, src_ip, prefix, suffix, port, method, scheme)
+ */
+  typedef struct
+  {
+    uint32_t active;              /* valid field: TS_SSPEC_xxx */
+    struct
+    {                           /* time range */
+      int hour_a;
+      int min_a;
+      int hour_b;
+      int min_b;
+    } time;
+    TSIpAddr src_ip;           /* client/source ip */
+    char *prefix;               /* prefix in path part of URL */
+    char *suffix;               /* suffix in the URL */
+    TSPortEle *port;           /* requested URL port */
+    TSMethodT method;          /* get, post, put, trace */
+    TSSchemeT scheme;          /* HTTP */
+  } TSSspec;                   /* Sspec = Secondary Specifier */
+
+  typedef struct
+  {
+    TSPrimeDestT pd_type;      /* primary destination type: TS_PD_xxx */
+    char *pd_val;               /* primary destination value; refers to the requested domain name,
+                                   host name, ip address, or regular expression to
+                                   be found in a URL  */
+    TSSspec sec_spec;          /* secondary specifier */
+  } TSPdSsFormat;              /* PdSs = Primary Destination Secondary Specifier */
+
+
+/* Generic Ele struct which is used as first member in all other Ele structs.
+ * The TSCfgContext operations deal with TSCfgEle* type, so must typecast
+ * all Ele's to an TSCfgEle*
+ */
+  typedef struct
+  {
+    TSRuleTypeT type;
+    TSMgmtError error;
+  } TSCfgEle;
+
+/* cache.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSPdSsFormat cache_info;   /* general PdSs information */
+    TSHmsTime time_period;     /* only valid if cache_act == TS_CACHE_PIN_IN_CACHE */
+  } TSCacheEle;
+
+/* congestion.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSPrimeDestT pd_type;
+    char *pd_val;
+    char *prefix;               /* optional */
+    int port;                   /* optional */
+    TSCongestionSchemeT scheme;        /* per_ip or per_host */
+    int max_connection_failures;
+    int fail_window;
+    int proxy_retry_interval;
+    int client_wait_interval;
+    int wait_interval_alpha;
+    int live_os_conn_timeout;
+    int live_os_conn_retries;
+    int dead_os_conn_timeout;
+    int dead_os_conn_retries;
+    int max_connection;
+    char *error_page_uri;
+  } TSCongestionEle;
+
+/* hosting.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSPrimeDestT pd_type;
+    char *pd_val;               /* domain or hostname  */
+    TSIntList volumes;      /* must be a list of ints */
+  } TSHostingEle;
+
+/* icp.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *peer_hostname;        /* hostname of icp peer; ("localhost" name reserved for Traffic Server) */
+    TSIpAddr peer_host_ip_addr;        /* ip address of icp peer (not required if peer_hostname) */
+    TSIcpT peer_type;          /* 1: icp parent, 2: icp sibling */
+    int peer_proxy_port;        /* port number of the TCP port used by the ICP peer for proxy communication */
+    int peer_icp_port;          /* port number of the UDP port used by the ICP peer for ICP communication  */
+    bool is_multicast;          /* false: multicast not enabled; true: multicast enabled */
+    TSIpAddr mc_ip_addr;       /* multicast ip (can be 0 if is_multicast == false */
+    TSMcTtlT mc_ttl;           /* multicast time to live; either IP multicast datagrams will not
+                                   be forwarded beyond a single subnetwork, or allow delivery
+                                   of IP multicast datagrams to more than one subnet
+                                   (can be UNDEFINED if is_multicast == false */
+  } TSIcpEle;
+
+/* ip_allow.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSIpAddrEle *src_ip_addr;  /* source ip address (single or range) */
+    TSIpAllowT action;
+  } TSIpAllowEle;
+
+/* logs_xml.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSLogFilterActionT action; /* accept or reject records satisfying filter condition */
+    char *filter_name;
+    char *log_field;            /* possible choices listed on p.250 */
+    TSLogConditionOpT compare_op;
+    char *compare_str;          /* the comparison value can be any string or integer */
+    int compare_int;            /* if int, then all the TSLogConditionOpT operations mean "equal" */
+  } TSLogFilterEle;
+
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *name;                 /* must be unique; can't be a pre-defined format */
+    char *format;
+    int aggregate_interval_secs;        /* (optional) use if format contains aggregate ops */
+  } TSLogFormatEle;
+
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *format_name;
+    char *file_name;
+    TSLogModeT log_mode;
+    TSDomainList collation_hosts;      /* list of hosts (by name or IP addr) */
+    TSStringList filters;      /* list of filter names that already exist */
+    TSStringList protocols;    /* list of protocols, eg. http, nttp, icp */
+    TSStringList server_hosts; /* list of host names */
+  } TSLogObjectEle;
+
+/* parent.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSPdSsFormat parent_info;  /* general PdSs information */
+    TSRrT rr;                  /*  possible values are TS_RRT_TRUE (go through proxy
+                                   parent list in round robin),TS_RRT_STRICT (server
+                                   requests striclty in turn), or TS_RRT_FALSE (no
+                                   round robin selection) */
+    TSDomainList proxy_list;   /* ordered list of parent proxies */
+    bool direct;                /* indicate if go directly to origin server, default = false and does
+                                   not bypass parent heirarchies */
+  } TSParentProxyEle;          /* exactly one of rr or parent_proxy_act must be defined */
+
+/* volume.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    int volume_num;          /* must be in range 1 - 255 */
+    TSVolumeSchemeT scheme; /* http */
+    int volume_size;         /* >= 128 MB, multiple of 128 */
+    TSSizeFormatT size_format; /* percentage or absolute */
+  } TSVolumeEle;
+
+/* plugin.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *name;                 /* name of plugin */
+    TSStringList args;         /* list of arguments */
+  } TSPluginEle;
+
+/* remap.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    bool map;                   /* if true: map, if false: remap */
+    TSSchemeT from_scheme;     /* http, https, <scheme>://<host>:<port>/<path_prefix> */
+    char *from_host;            /* from host */
+    int from_port;              /* from port (can be 0) */
+    char *from_path_prefix;     /* from path_prefix (can be NULL) */
+    TSSchemeT to_scheme;
+    char *to_host;              /* to host */
+    int to_port;                /* to port (can be 0) */
+    char *to_path_prefix;       /* to path_prefix (can be NULL) */
+  } TSRemapEle;
+
+/* socks.config */
+/* TSqa10915: supports two rules types - the first rule type specifies the
+   IP addresses of origin servers that TS should bypass SOCKS and access
+   directly (this is when ip_addrs is used); the second rule
+   type specifies which SOCKS servers to use for the addresses specified
+   in dest_ip_addr; so this means that either ip_addrs is specified OR
+   dest_ip_addr/socks_servers/rr are */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSIpAddrList ip_addrs;     /* list of ip addresses to bypass SOCKS server (TS_SOCKS_BYPASS) */
+    TSIpAddrEle *dest_ip_addr; /* ip address(es) that will use the socks server
+                                   specified in parent_list (TS_SOCKS_MULTIPLE rule) */
+    TSDomainList socks_servers;        /* ordered list of SOCKS servers (TS_SOCKS_MULTIPLE rule) */
+    TSRrT rr;                  /* possible values are TS_RRT_TRUE (go through proxy
+                                   parent list in round robin),TS_RRT_STRICT (server
+                                   requests striclty in turn), or TS_RRT_FALSE (no
+                                   round robin selection) (TS_SOCKS_MULTIPLE rule) */
+    char *username;             /* used for TS_SOCKS_AUTH rule */
+    char *password;             /* used for TS_SOCKS_AUTH rule */
+  } TSSocksEle;
+
+/* splitdns.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSPrimeDestT pd_type;      /* TS_PD_DOMAIN, TS_PD_HOST, TS_PD_URL_REGEX only */
+    char *pd_val;               /* primary destination value */
+    TSDomainList dns_servers_addrs;    /* list of dns servers */
+    char *def_domain;           /* (optional) default domain name (can be NULL) */
+    TSDomainList search_list;  /* (optinal) domain search list (can be INVALID) */
+  } TSSplitDnsEle;
+
+/* storage.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *pathname;             /* the name of a disk partition, directory, or file */
+    int size;                   /* size of the named pathname (in bytes); optional if raw disk partitions */
+  } TSStorageEle;
+
+/* update.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *url;                  /* url to update (HTTP based URLs) */
+    TSStringList headers;      /* list of headers, separated by semicolons (can be NULL) */
+    int offset_hour;            /* offset hour to start update; must be 00-23 hrs  */
+    int interval;               /* in secs, frequency of updates starting at offset_hour */
+    int recursion_depth;        /* starting at given URL, the depth to which referenced URLs are recursively updated */
+  } TSUpdateEle;
+
+/* vaddrs.config */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    TSIpAddr ip_addr;          /* virtual ip address */
+    char *intr;                 /* network interface name (hme0) */
+    int sub_intr;               /* the sub-interface number; must be between 1 and 255 */
+  } TSVirtIpAddrEle;
+
+/* rmserver.cfg */
+  typedef struct
+  {
+    TSCfgEle cfg_ele;
+    char *Vname;
+    char *str_val;
+    int int_val;
+  } TSRmServerEle;
+
+/***************************************************************************
+ * Function Types
+ ***************************************************************************/
+
+  typedef void (*TSEventSignalFunc) (char *name, char *msg, int pri, void *data);
+  typedef void (*TSDisconnectFunc) (void *data);
+
+/***************************************************************************
+ * API Memory Management
+ ***************************************************************************/
+#define TSmalloc(s)      _TSmalloc ((s), TS_RES_MEM_PATH)
+#define TSrealloc(p,s)   _TSrealloc ((p), (s), TS_RES_MEM_PATH)
+#define TSstrdup(p)      _TSstrdup ((p), -1, TS_RES_MEM_PATH)
+#define TSstrndup(p,n)   _TSstrdup ((p), (n), TS_RES_MEM_PATH)
+#define TSfree(p)        _TSfree (p)
+
+  tsapi void *_TSmalloc(unsigned int size, const char *path);
+  tsapi void *_TSrealloc(void *ptr, unsigned int size, const char *path);
+  tsapi char *_TSstrdup(const char *str, int length, const char *path);
+  tsapi void _TSfree(void *ptr);
+
+/***************************************************************************
+ * API Helper Functions for Data Carrier Structures
+ ***************************************************************************/
+
+/*--- TSList operations --------------------------------------------------*/
+  tsapi TSList TSListCreate();
+  tsapi void TSListDestroy(TSList l);        /* list must be empty */
+  tsapi TSMgmtError TSListEnqueue(TSList l, void *data);
+  tsapi void *TSListDequeue(TSList l);
+  tsapi bool TSListIsEmpty(TSList l);
+  tsapi int TSListLen(TSList l);     /* returns -1 if list is invalid */
+  tsapi bool TSListIsValid(TSList l);
+
+/*--- TSIpAddrList operations --------------------------------------------*/
+  tsapi TSIpAddrList TSIpAddrListCreate();
+  tsapi void TSIpAddrListDestroy(TSIpAddrList ip_addrl);
+  tsapi TSMgmtError TSIpAddrListEnqueue(TSIpAddrList ip_addrl, TSIpAddrEle * ip_addr);
+  tsapi TSIpAddrEle *TSIpAddrListDequeue(TSIpAddrList ip_addrl);
+  tsapi int TSIpAddrListLen(TSIpAddrList ip_addrl);
+  tsapi bool TSIpAddrListIsEmpty(TSIpAddrList ip_addrl);
+  tsapi int TSIpAddrListLen(TSIpAddrList ip_addrl);
+  tsapi bool TSIpAddrListIsValid(TSIpAddrList ip_addrl);
+
+/*--- TSPortList operations ----------------------------------------------*/
+  tsapi TSPortList TSPortListCreate();
+  tsapi void TSPortListDestroy(TSPortList portl);
+  tsapi TSMgmtError TSPortListEnqueue(TSPortList portl, TSPortEle * port);
+  tsapi TSPortEle *TSPortListDequeue(TSPortList portl);
+  tsapi bool TSPortListIsEmpty(TSPortList portl);
+  tsapi int TSPortListLen(TSPortList portl);
+  tsapi bool TSPortListIsValid(TSPortList portl);
+
+/*--- TSStringList operations --------------------------------------------*/
+  tsapi TSStringList TSStringListCreate();
+  tsapi void TSStringListDestroy(TSStringList strl);
+  tsapi TSMgmtError TSStringListEnqueue(TSStringList strl, char *str);
+  tsapi char *TSStringListDequeue(TSStringList strl);
+  tsapi bool TSStringListIsEmpty(TSStringList strl);
+  tsapi int TSStringListLen(TSStringList strl);
+  tsapi bool TSStringListIsValid(TSStringList strl);
+
+/*--- TSIntList operations --------------------------------------------*/
+  tsapi TSIntList TSIntListCreate();
+  tsapi void TSIntListDestroy(TSIntList intl);
+  tsapi TSMgmtError TSIntListEnqueue(TSIntList intl, int *str);
+  tsapi int *TSIntListDequeue(TSIntList intl);
+  tsapi bool TSIntListIsEmpty(TSIntList intl);
+  tsapi int TSIntListLen(TSIntList intl);
+  tsapi bool TSIntListIsValid(TSIntList intl, int min, int max);
+
+/*--- TSDomainList operations --------------------------------------------*/
+  tsapi TSDomainList TSDomainListCreate();
+  tsapi void TSDomainListDestroy(TSDomainList domainl);
+  tsapi TSMgmtError TSDomainListEnqueue(TSDomainList domainl, TSDomain * domain);
+  tsapi TSDomain *TSDomainListDequeue(TSDomainList domainl);
+  tsapi bool TSDomainListIsEmpty(TSDomainList domainl);
+  tsapi int TSDomainListLen(TSDomainList domainl);
+  tsapi bool TSDomainListIsValid(TSDomainList domainl);
+
+/*--- allocate/deallocate operations -------------------------------------*/
+/* NOTE:
+ * 1) Default values for TSxxEleCreate functions:
+ *    - for all lists, default value is TS_INVALID_LIST. NO memory is
+ *      allocated for an Ele's  list type member. The user must
+ *      explicity call the TSxxListCreate() function to initialize it.
+ *    - for char*'s and TSIpAddr the default is NULL (or TS_INVALID_IP_ADDR
+ *      for TSIpAddr's); user must assign allocated memory to initialize any
+ *      string or TSIpAddr members of an TSxxxEle
+ *
+ * 2) An Ele corresponds to a rule type in a file; this is why each Ele has an
+ * TSRuleType to identify which type of rule it corresponds to.
+ * For config files which only have one rule type, we can easily set the
+ * rule type of the Ele in the EleCreate function since there's only one possible
+ * option. However, note that for those config files with more than one rule
+ * type, we cannot set the rule type in the EleCreate function since
+ * we don't know which rule type the Ele corresponds to yet. Thus, the user must
+ * specify the TSRuleTypeT when he/she creates the Ele.
+ */
+
+  tsapi TSMgmtEvent *TSEventCreate();
+  tsapi void TSEventDestroy(TSMgmtEvent * event);
+  tsapi TSRecordEle *TSRecordEleCreate();
+  tsapi void TSRecordEleDestroy(TSRecordEle * ele);
+  tsapi TSIpAddrEle *TSIpAddrEleCreate();
+  tsapi void TSIpAddrEleDestroy(TSIpAddrEle * ele);
+  tsapi TSPortEle *TSPortEleCreate();
+  tsapi void TSPortEleDestroy(TSPortEle * ele);
+  tsapi TSDomain *TSDomainCreate();
+  tsapi void TSDomainDestroy(TSDomain * ele);
+  tsapi TSSspec *TSSspecCreate();
+  tsapi void TSSspecDestroy(TSSspec * ele);
+  tsapi TSPdSsFormat *TSPdSsFormatCreate();
+  tsapi void TSPdSsFormatDestroy(TSPdSsFormat * ele);
+  tsapi TSCacheEle *TSCacheEleCreate(TSRuleTypeT type);
+  tsapi void TSCacheEleDestroy(TSCacheEle * ele);
+  tsapi TSCongestionEle *TSCongestionEleCreate();
+  tsapi void TSCongestionEleDestroy(TSCongestionEle * ele);
+  tsapi TSHostingEle *TSHostingEleCreate();
+  tsapi void TSHostingEleDestroy(TSHostingEle * ele);
+  tsapi TSIcpEle *TSIcpEleCreate();
+  tsapi void TSIcpEleDestroy(TSIcpEle * ele);
+  tsapi TSIpAllowEle *TSIpAllowEleCreate();
+  tsapi void TSIpAllowEleDestroy(TSIpAllowEle * ele);
+  tsapi TSLogFilterEle *TSLogFilterEleCreate();
+  tsapi void TSLogFilterEleDestroy(TSLogFilterEle * ele);
+  tsapi TSLogFormatEle *TSLogFormatEleCreate();
+  tsapi void TSLogFormatEleDestroy(TSLogFormatEle * ele);
+  tsapi TSLogObjectEle *TSLogObjectEleCreate();
+  tsapi void TSLogObjectEleDestroy(TSLogObjectEle * ele);
+  tsapi TSParentProxyEle *TSParentProxyEleCreate(TSRuleTypeT type);
+  tsapi void TSParentProxyEleDestroy(TSParentProxyEle * ele);
+  tsapi TSVolumeEle *TSVolumeEleCreate();
+  tsapi void TSVolumeEleDestroy(TSVolumeEle * ele);
+  tsapi TSPluginEle *TSPluginEleCreate();
+  tsapi void TSPluginEleDestroy(TSPluginEle * ele);
+  tsapi TSRemapEle *TSRemapEleCreate(TSRuleTypeT type);
+  tsapi void TSRemapEleDestroy(TSRemapEle * ele);
+  tsapi TSSocksEle *TSSocksEleCreate(TSRuleTypeT type);
+  tsapi void TSSocksEleDestroy(TSSocksEle * ele);
+  tsapi TSSplitDnsEle *TSSplitDnsEleCreate();
+  tsapi void TSSplitDnsEleDestroy(TSSplitDnsEle * ele);
+  tsapi TSStorageEle *TSStorageEleCreate();
+  tsapi void TSStorageEleDestroy(TSStorageEle * ele);
+  tsapi TSUpdateEle *TSUpdateEleCreate();
+  tsapi void TSUpdateEleDestroy(TSUpdateEle * ele);
+  tsapi TSVirtIpAddrEle *TSVirtIpAddrEleCreate();
+  tsapi void TSVirtIpAddrEleDestroy(TSVirtIpAddrEle * ele);
+/*--- Ele helper operations -------------------------------------*/
+
+/* TSIsValid: checks if the fields in the ele are all valid
+ * Input:  ele - the ele to check (typecast any of the TSxxxEle's to an TSCfgEle)
+ * Output: true if ele has valid fields for its rule type, false otherwise
+ */
+  bool TSIsValid(TSCfgEle * ele);
+
+/***************************************************************************
+ * API Core
+ ***************************************************************************/
+
+/*--- api initialization and shutdown -------------------------------------*/
+/* TSInit: initializations required for API clients
+ * Input: socket_path - not applicable for local clients
+ *                      for remote users, the path to the config directory.
+ *                      If == NULL, we use the Layout engine by default.
+ *        options - Control some features of the APIs
+ * Output: TS_ERR_xx
+ * Note: If remote client successfully connects, returns TS_ERR_OKAY; but
+ *       even if not successful connection (eg. client program is started
+ *       before TM) then can still make API calls and will try connecting then
+ */
+  tsapi TSMgmtError TSInit(const char *socket_path, TSInitOptionT options);
+
+/* TSTerminate: does clean up for API clients
+ * Input: <none>
+ * Output: <none>
+ */
+  tsapi TSMgmtError TSTerminate();
+
+/*--- plugin initialization -----------------------------------------------*/
+/* TSPluginInit: called by traffic_manager to initialize the plugin
+ * Input:  argc - argument count
+ *         argv - argument array
+ * Output: <none>
+ * Note: To implement a program as a plugin, need to implement the TSPluginInit
+ *       function and then add the plugin's name (eg. test-plugin.so) and argument
+ *       list (if any) to the list in the plugin_mgmt.config file. The location of the
+ *       mgmt plugins should be specified in the records.config variable
+ *       "proxy.config.plugin.plugin_mgmt_dir" (if this directory is a relative
+ *       pathname then, it is assumed that it is relative to the root directory
+ *       defined in TS_ROOT). The default value is "etc/trafficserver/plugins_mgmt",
+ *       which tells Traffic Manager to use the directory plugins_mgmt located in the
+ *       same directory as records.config. You should place your shared library (*.so)
+ *       into the directory you have specified.
+ */
+  inkexp extern void TSPluginInit(int argc, const char *argv[]);
+
+/*--- network operations --------------------------------------------------*/
+/* UNIMPLEMENTED: used for remote clients on a different machine */
+  tsapi TSMgmtError TSConnect(TSIpAddr ip_addr, int port);
+  tsapi TSMgmtError TSDisconnectCbRegister(TSDisconnectFunc * func, void *data);
+  tsapi TSMgmtError TSDisconnectRetrySet(int retries, int retry_sleep_msec);
+  tsapi TSMgmtError TSDisconnect();
+
+
+/*--- control operations --------------------------------------------------*/
+/* TSProxyStateGet: get the proxy state (on/off)
+ * Input:  <none>
+ * Output: proxy state (on/off)
+ */
+  tsapi TSProxyStateT TSProxyStateGet();
+
+/* TSProxyStateSet: set the proxy state (on/off)
+ * Input:  proxy_state - set to on/off
+ *         clear - specifies if want to start TS with clear_cache or
+ *                 clear_cache_hostdb option, or just run TS with no options;
+ *                  only applies when turning proxy on
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSProxyStateSet(TSProxyStateT proxy_state, TSCacheClearT clear);
+
+/* TSReconfigure: tell traffic_server to re-read its configuration files
+ * Input:  <none>
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSReconfigure();
+
+/* TSRestart: restarts Traffic Manager and Traffic Server
+ * Input:  cluster - local or cluster-wide
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSRestart(bool cluster);
+
+/* TSActionDo: based on TSActionNeedT, will take appropriate action
+ * Input: action - action that needs to be taken
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSActionDo(TSActionNeedT action);
+
+/* TSBounce: restart the traffic_server process(es).
+ * Input: cluster - local or cluster-wide
+ * Output TSMgmtError
+ */
+  tsapi TSMgmtError TSBounce(bool cluster);
+
+/* TSStorageDeviceOp: Request an operation on a storage device.
+ * @arg dev Target device, specified by path to device.
+ * @return Success.
+ */
+  tsapi TSMgmtError TSStorageDeviceCmdOffline(char const* dev);
+
+/*--- diags output operations ---------------------------------------------*/
+/* TSDiags: enables users to manipulate run-time diagnostics, and print
+ *           user-formatted notices, warnings and errors
+ * Input:  mode - diags mode
+ *         fmt  - printf style format
+ * Output: <none>
+ */
+  tsapi void TSDiags(TSDiagsT mode, const char *fmt, ...);
+
+/* TSGetErrorMessage: convert error id to error message
+ * Input:  error id (defined in TSMgmtError)
+ * Output: corresponding error message (allocated memory)
+ */
+  char *TSGetErrorMessage(TSMgmtError error_id);
+
+/*--- password operations -------------------------------------------------*/
+/* TSEncryptPassword: encrypts a password
+ * Input: passwd - a password string to encrypt (can be NULL)
+ * Output: e_passwd - an encrypted passwd (ats_malloc's memory)
+ */
+  tsapi TSMgmtError TSEncryptPassword(char *passwd, char **e_passwd);
+
+/*--- direct file operations ----------------------------------------------*/
+/* TSConfigFileRead: reads a config file into a buffer
+ * Input:  file - the config file to read
+ *         text - a buffer is allocated on the text char* pointer
+ *         size - the size of the buffer is returned
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSConfigFileRead(TSFileNameT file, char **text, int *size, int *version);
+
+/* TSConfigFileWrite: writes a config file into a buffer
+ * Input:  file - the config file to write
+ *         text - text buffer to write
+ *         size - the size of the buffer to write
+ *         version - the current version level; new file will have the
+ *                  version number above this one  (if version < 0, then
+ *                  just uses the next version number in the sequence)
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSConfigFileWrite(TSFileNameT file, char *text, int size, int version);
+
+/* TSReadFromUrl: reads a remotely located config file into a buffer
+ * Input:  url        - remote location of the file
+ *         header     - a buffer is allocated on the header char* pointer
+ *         headerSize - the size of the header buffer is returned
+ *         body       - a buffer is allocated on the body char* pointer
+ *         bodySize   - the size of the body buffer is returned
+ * Output: TSMgmtError   - TS_ERR_OKAY if succeed, TS_ERR_FAIL otherwise
+ * Obsolete:  tsapi TSMgmtError TSReadFromUrl (char *url, char **text, int *size);
+ * NOTE: The URL can be expressed in the following forms:
+ *       - http://www.example.com:80/products/network/index.html
+ *       - http://www.example.com/products/network/index.html
+ *       - http://www.example.com/products/network/
+ *       - http://www.example.com/
+ *       - http://www.example.com
+ *       - www.example.com
+ * NOTE: header and headerSize can be NULL
+ */
+  tsapi TSMgmtError TSReadFromUrl(char *url, char **header, int *headerSize, char **body, int *bodySize);
+
+/* TSReadFromUrl: reads a remotely located config file into a buffer
+ * Input:  url        - remote location of the file
+ *         header     - a buffer is allocated on the header char* pointer
+ *         headerSize - the size of the header buffer is returned
+ *         body       - a buffer is allocated on the body char* pointer
+ *         bodySize   - the size of the body buffer is returned
+ *         timeout    - the max. connection timeout value before aborting.
+ * Output: TSMgmtError   - TS_ERR_OKAY if succeed, TS_ERR_FAIL otherwise
+ * NOTE: The URL can be expressed in the following forms:
+ *       - http://www.example.com:80/products/network/index.html
+ *       - http://www.example.com/products/network/index.html
+ *       - http://www.example.com/products/network/
+ *       - http://www.example.com/
+ *       - http://www.example.com
+ *       - www.example.com
+ * NOTE: header and headerSize can be NULL
+ */
+  tsapi TSMgmtError TSReadFromUrlEx(const char *url, char **header, int *headerSize, char **body, int *bodySize, int timeout);
+
+/*--- snapshot operations -------------------------------------------------*/
+/* TSSnapshotTake: takes snapshot of configuration at that instant in time
+ * Input:  snapshot_name - name to call new snapshot
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSSnapshotTake(char *snapshot_name);
+
+/* TSSnapshotRestore: restores configuration to when the snapshot was taken
+ * Input:  snapshot_name - name of snapshot to restore
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSSnapshotRestore(char *snapshot_name);
+
+/* TSSnapshotRemove: removes the snapshot
+ * Input:  snapshot_name - name of snapshot to remove
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSSnapshotRemove(char *snapshot_name);
+
+/* TSSnapshotsGet: restores configuration to when the snapshot was taken
+ * Input:  snapshots - the list which will store all snapshot names currently taken
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSSnapshotGetMlt(TSStringList snapshots);
+
+
+/*--- statistics operations -----------------------------------------------*/
+/* TSStatsReset: sets all the statistics variables to their default values
+ * Input: cluster - Reset the stats clusterwide or not
+ * Outpue: TSErrr
+ */
+  tsapi TSMgmtError TSStatsReset(bool cluster, const char *name);
+
+
+/*--- variable operations -------------------------------------------------*/
+/* TSRecordGet: gets a record
+ * Input:  rec_name - the name of the record (proxy.config.record_name)
+ *         rec_val  - allocated TSRecordEle structure, value stored inside
+ * Output: TSMgmtError (if the rec_name does not exist, returns TS_ERR_FAIL)
+ */
+  tsapi TSMgmtError TSRecordGet(char *rec_name, TSRecordEle * rec_val);
+
+/* TSRecordGet*: gets a record w/ a known type
+ * Input:  rec_name - the name of the record (proxy.config.record_name)
+ *         *_val    - allocated TSRecordEle structure, value stored inside
+ * Output: TSMgmtError
+ * Note: For TSRecordGetString, the function will allocate memory for the
+ *       *string_val, so the caller must free (*string_val);
+ */
+  tsapi TSMgmtError TSRecordGetInt(const char *rec_name, TSInt * int_val);
+  tsapi TSMgmtError TSRecordGetCounter(const char *rec_name, TSCounter * counter_val);
+  tsapi TSMgmtError TSRecordGetFloat(const char *rec_name, TSFloat * float_val);
+  tsapi TSMgmtError TSRecordGetString(const char *rec_name, TSString * string_val);
+
+/* TSRecordGetMlt: gets a set of records
+ * Input:  rec_list - list of record names the user wants to retrieve;
+ *                    resulting gets will be stored in the same list;
+ *                    if one get fails, transaction will be aborted
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSRecordGetMlt(TSStringList rec_names, TSList rec_vals);
+
+/* TSRecordGetMatchMlt: gets a set of records
+ * Input:  rec_regex - regular expression to match against record names
+ * Output: TSMgmtError, TSList of TSRecordEle
+ */
+  tsapi TSMgmtError TSRecordGetMatchMlt(const char *rec_regex, TSList list);
+
+/* TSRecordSet*: sets a record w/ a known type
+ * Input:  rec_name     - the name of the record (proxy.config.record_name)
+ *         *_val        - the value to set the record to
+ *         *action_need - indicates which operation required by user for changes to take effect
+ * Output: TSMgmtError
+ */
+
+  tsapi TSMgmtError TSRecordSet(const char *rec_name, const char *val, TSActionNeedT * action_need);
+  tsapi TSMgmtError TSRecordSetInt(const char *rec_name, TSInt int_val, TSActionNeedT * action_need);
+  tsapi TSMgmtError TSRecordSetCounter(const char *rec_name, TSCounter counter_val, TSActionNeedT * action_need);
+  tsapi TSMgmtError TSRecordSetFloat(const char *rec_name, TSFloat float_val, TSActionNeedT * action_need);
+  tsapi TSMgmtError TSRecordSetString(const char *rec_name, const char *string_val, TSActionNeedT * action_need);
+
+/* TSRecordSetMlt: sets a set of records
+ * Input:  rec_list     - list of record names the user wants to set;
+ *                        if one set fails, transaction will be aborted
+ *         *action_need - indicates which operation required by user for changes to take effect
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSRecordSetMlt(TSList rec_list, TSActionNeedT * action_need);
+
+/*--- events --------------------------------------------------------------*/
+/* Only a set of statically defined events exist. An event is either
+ * active or inactive. An event is active when it is triggered, and
+ * becomes inactive when resolved. Events are triggered and resolved
+ * by specifying the event's name (which is predefined and immutable).
+ */
+
+/* UNIMPLEMENTED - wait for new alarm processor */
+/* TSEventSignal: enables the user to trigger an event
+ * Input:  event_name - "MGMT_ALARM_ADD_ALARM"
+ *         ...        - variable argument list of parameters that go
+ *                       go into event description when it is signalled
+ * Output: TSMgmtError
+ */
+/*tsapi TSMgmtError               TSEventSignal (char *event_name, ...); */
+
+
+/* TSEventResolve: enables the user to resolve an event
+ * Input:  event_name - event to resolve
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSEventResolve(char *event_name);
+
+/* TSActiveEventGetMlt: query for a list of all the currently active events
+ * Input:  active_events - an empty TSList; if function call is successful,
+ *                         active_events will contain names of the currently
+ *                         active events
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSActiveEventGetMlt(TSList active_events);
+
+/* TSEventIsActive: check if the specified event is active
+ * Input:  event_name - name of event to check if active; must be one of
+ *                      the predefined names
+ *         is_current - when function completes, if true, then the event is
+ *                      active
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSEventIsActive(char *event_name, bool * is_current);
+
+/* TSEventSignalCbRegister: register a callback for a specific event or
+ *                           for any event
+ * Input:  event_name - the name of event to register callback for;
+ *                      if NULL, the callback is registered for all events
+ *         func       - callback function
+ *         data       - data to pass to callback
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSEventSignalCbRegister(char *event_name, TSEventSignalFunc func, void *data);
+
+/* TSEventSignalCbUnregister: unregister a callback for a specific event
+ *                             or for any event
+ * Input: event_name - the name of event to unregister callback for;
+ *                     if NULL, the callback is unregistered for all events
+ *         func       - callback function
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSEventSignalCbUnregister(char *event_name, TSEventSignalFunc func);
+
+
+/*--- abstracted file operations ------------------------------------------*/
+/* TSCfgContextCreate: allocates memory for an empty TSCfgContext for the specified file
+ * Input:  file - the file
+ * Output: TSCfgContext
+ * Note: This function does not read the current rules in the file into
+ * the TSCfgContext (must call TSCfgContextGet to do this). If you
+ * do not call TSCfgContextGet before calling TSCfgContextCommit, then
+ * you will overwite all the old rules in the config file!
+ */
+  tsapi TSCfgContext TSCfgContextCreate(TSFileNameT file);
+
+/* TSCfgContextDestroy: deallocates all memory for the TSCfgContext
+ * Input:  ctx - the TSCfgContext to destroy
+ * Output: TSMgmtError
+ */
+  tsapi TSMgmtError TSCfgContextDestroy(TSCfgContext ctx);
+
+/* TSCfgContextCommit: write new file copy based on ele's listed in ctx
+ * Input:  ctx - where all the file's eles are stored
+ *         *action_need - indicates which operation required by user for changes to take effect
+ * Output: TSMgmtError
+ * Note: If you do not call TSCfgContextGet before calling TSCfgContextCommit, then
+ * you could possibly overwrite all the old rules in the config file!!
+ */
+  tsapi TSMgmtError TSCfgContextCommit(TSCfgContext ctx, TSActionNeedT * action_need, TSIntList errRules);
+
+
+/* TSCfgContextGet: retrieves all the Ele's for the file specified in the ctx and
+ *                puts them into ctx; note that the ele's in the TSCfgContext don't
+ *                all have to be of the same ele type
+ * Input: ctx - where all the most currfile's eles are stored
+ * Output: TSMgmtError
+ *
+ */
+  tsapi TSMgmtError TSCfgContextGet(TSCfgContext ctx);
+
+
+/*--- TSCfgContext Operations --------------------------------------------*/
+/*
+ * These operations are used to manipulate the opaque TSCfgContext type,
+ * eg. when want to modify a file
+ */
+
+/* TSCfgContextGetCount: returns number of Ele's in the TSCfgContext
+ * Input:  ctx - the TSCfgContext to count the number of ele's in
+ * Output: the number of Ele's
+ */
+  int TSCfgContextGetCount(TSCfgContext ctx);
+
+/* TSCfgContextGetEleAt: retrieves the Ele at the specified index; user must
+ *                        typecast the TSCfgEle to appropriate TSEle before using
+ * Input:  ctx   - the TSCfgContext to retrieve the ele from
+ *         index - the Ele position desired; first Ele located at index 0
+ * Output: the Ele (typecasted as an TSCfgEle)
+ */
+  TSCfgEle *TSCfgContextGetEleAt(TSCfgContext ctx, int index);
+
+/* TSCfgContextGetFirst: retrieves the first Ele in the TSCfgContext
+ * Input:  ctx   - the TSCfgContext
+ *         state - the current position in the Ele that the iterator is at
+ * Output: returns first Ele in the ctx (typecasted as an TSCfgEle)
+ */
+  TSCfgEle *TSCfgContextGetFirst(TSCfgContext ctx, TSCfgIterState * state);
+
+/* TSCfgContextGetNext: retrieves the next ele in the ctx that's located after
+ *                       the one pointed to by the TSCfgIterState
+ * Input:  ctx   - the TSCfgContext
+ *         state - the current position in the Ele that the iterator is at
+ * Output: returns the next Ele in the ctx (typecasted as an TSCfgEle)
+ */
+  TSCfgEle *TSCfgContextGetNext(TSCfgContext ctx, TSCfgIterState * state);
+
+/* TSCfgContextMoveEleUp: shifts the Ele at the specified index one position up;
+ *                         does nothing if Ele is at first position in the TSCfgContext
+ * Input:  ctx   - the TSCfgContext
+ *         index - the position of the Ele that needs to be shifted up
+ * Output: TSMgmtError
+ */
+  TSMgmtError TSCfgContextMoveEleUp(TSCfgContext ctx, int index);
+
+/* TSCfgContextMoveEleDown: shifts the Ele at the specified index one position down;
+ *                           does nothing if Ele is last in the TSCfgContext
+ * Input:  ctx   - the TSCfgContext
+ *         index - the position of the Ele that needs to be shifted down
+ * Output: TSMgmtError
+ */
+  TSMgmtError TSCfgContextMoveEleDown(TSCfgContext ctx, int index);
+
+/* TSCfgContextAppendEle: appends the ele to the end of the TSCfgContext
+ * Input:  ctx   - the TSCfgContext
+ *         ele - the Ele (typecasted as an TSCfgEle) to append to ctx
+ * Output: TSMgmtError
+ * Note: When appending the ele to the TSCfgContext, this function does NOT
+ *       make a copy of the ele passed in; it uses the same memory! So you probably
+ *       do not want to append the ele and then free the memory for the ele
+ *       without first removing the ele from the TSCfgContext
+ */
+  TSMgmtError TSCfgContextAppendEle(TSCfgContext ctx, TSCfgEle * ele);
+
+/* TSCfgContextInsertEleAt: inserts the ele at the specified index
+ * Input:  ctx   - the TSCfgContext
+ *         ele   - the Ele (typecasted as an TSCfgEle) to insert into ctx
+ *         index - the position in ctx to insert the Ele
+ * Output: TSMgmtError
+ * Note: When inserting the ele into the TSCfgContext, this function does NOT
+ *       make a copy of the ele passed in; it uses the same memory! So you probably
+ *       do not want to insert the ele and then free the memory for the ele
+ *       without first removing the ele from the TSCfgContext
+ */
+  TSMgmtError TSCfgContextInsertEleAt(TSCfgContext ctx, TSCfgEle * ele, int index);
+
+/* TSCfgContextRemoveEleAt: removes the Ele at the specified index from the TSCfgContext
+ * Input:  ctx   - the TSCfgContext
+ *         index - the position of the Ele in the ctx to remove
+ * Output: TSMgmtError
+ */
+  TSMgmtError TSCfgContextRemoveEleAt(TSCfgContext ctx, int index);
+
+  /* TSCfgContextRemoveAll: removes all Eles from the TSCfgContext
+   * Input:  ctx   - the TSCfgContext
+   * Output: TSMgmtError
+   */
+  TSMgmtError TSCfgContextRemoveAll(TSCfgContext ctx);
+
+/*--- TS Cache Inspector Operations --------------------------------------------*/
+
+/* TSLookupFromCacheUrl
+ *   Function takes an url and an 'info' buffer as input,
+ *   lookups cache information of the url and saves the
+ *   cache info to the info buffer
+ */
+  tsapi TSMgmtError TSLookupFromCacheUrl(TSString url, TSString * info);
+
+/* TSLookupFromCacheUrlRegex
+ *   Function takes a string in a regex form and returns
+ *   a list of urls that match the regex
+ ********************************************************/
+
+  tsapi TSMgmtError TSLookupFromCacheUrlRegex(TSString url_regex, TSString * list);
+
+/* TSDeleteFromCacheUrl
+ *   Function takes an url and an 'info' buffer as input,
+ *   deletes the url from cache if it's in the cache and
+ *   returns the status of deletion
+ ********************************************************/
+
+  tsapi TSMgmtError TSDeleteFromCacheUrl(TSString url, TSString * info);
+
+/* TSDeleteFromCacheUrlRegex
+ *   Function takes a string in a regex form and returns
+ *   a list of urls deleted from cache
+ ********************************************************/
+
+  tsapi TSMgmtError TSDeleteFromCacheUrlRegex(TSString url_regex, TSString * list);
+
+/* TSInvalidateFromCacheUrlRegex
+ *   Function takes a string in a regex form and returns
+ *   a list of urls invalidated from cache
+ ********************************************************/
+
+  tsapi TSMgmtError TSInvalidateFromCacheUrlRegex(TSString url_regex, TSString * list);
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+
+#endif                          /* __TS_MGMT_API_H__ */
diff --git a/mgmt/cluster/ClusterCom.cc b/mgmt/cluster/ClusterCom.cc
new file mode 100644
index 00000000..fceb0dcf
--- /dev/null
+++ b/mgmt/cluster/ClusterCom.cc
@@ -0,0 +1,2468 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************
+ *
+ * ClusterCom.cc
+ *   Member function definitions for Cluster communication class.
+ *
+ * $Date: 2008-05-20 17:26:19 $
+ *
+ *
+ */
+
+#include "libts.h"
+
+#include "I_Version.h"
+
+#include "TextBuffer.h"
+#include "MgmtSocket.h"
+
+#include "Main.h"
+#include "LocalManager.h"
+#include "ClusterCom.h"
+#include "MgmtUtils.h"
+#include "WebMgmtUtils.h"
+#include "MgmtHashTable.h"
+
+int MultiCastMessages = 0;
+long LastHighestDelta = -1L;
+
+
+void *
+drainIncomingChannel_broadcast(void *arg)
+{
+  char message[61440];
+  fd_set fdlist;
+  void *ret = arg;
+
+  time_t t;
+  time_t last_multicast_receive_time = time(NULL);
+  struct timeval tv;
+
+  /* Avert race condition, thread spun during constructor */
+  while (!lmgmt->ccom || !lmgmt->ccom->init) {
+    mgmt_sleep_sec(1);
+  }
+
+  lmgmt->syslogThrInit();
+
+  for (;;) {                    /* Loop draining mgmt network channels */
+    // linux: set tv.tv_set in select() loop, since linux's select()
+    // will update tv with the amount of time not slept (most other
+    // implementations do not do this)
+    tv.tv_sec = lmgmt->ccom->mc_poll_timeout;             // interface not-responding timeout
+    tv.tv_usec = 0;
+
+    memset(message, 0, 61440);
+    FD_ZERO(&fdlist);
+
+    if (lmgmt->ccom->cluster_type != NO_CLUSTER) {
+      if (lmgmt->ccom->receive_fd > 0) {
+        FD_SET(lmgmt->ccom->receive_fd, &fdlist);       /* Multicast fd */
+      }
+    }
+
+    mgmt_select(FD_SETSIZE, &fdlist, NULL, NULL, &tv);
+
+    if (lmgmt->ccom->cluster_type != NO_CLUSTER) {
+      // Multicast timeout considerations
+      if ((lmgmt->ccom->receive_fd < 0) || !FD_ISSET(lmgmt->ccom->receive_fd, &fdlist)) {
+        t = time(NULL);
+        if ((t - last_multicast_receive_time) > (tv.tv_sec - 1)) {
+          // Timeout on multicast receive channel, reset channel.
+          if (lmgmt->ccom->receive_fd > 0) {
+            close(lmgmt->ccom->receive_fd);
+          }
+          lmgmt->ccom->receive_fd = -1;
+          Debug("ccom", "Timeout, resetting multicast receive channel");
+          if (lmgmt->ccom->establishReceiveChannel(0)) {
+            Debug("ccom", "establishReceiveChannel failed");
+            lmgmt->ccom->receive_fd = -1;
+          }
+          last_multicast_receive_time = t;      // next action at next interval
+        }
+      } else {
+        last_multicast_receive_time = time(NULL);       // valid multicast msg
+      }
+    }
+
+    /* Broadcast message */
+    if (lmgmt->ccom->cluster_type != NO_CLUSTER &&
+        lmgmt->ccom->receive_fd > 0 &&
+        FD_ISSET(lmgmt->ccom->receive_fd, &fdlist) &&
+        (lmgmt->ccom->receiveIncomingMessage(message, 61440) > 0)) {
+      lmgmt->ccom->handleMultiCastMessage(message);
+    }
+  }
+  return ret;
+}                               /* End drainIncomingChannel */
+
+/*
+ * drainIncomingChannel
+ *   This function is blocking, it never returns. It is meant to allow for
+ * continuous draining of the network. It drains and handles requests made on
+ * the reliable and multicast channels between all the peers.
+ */
+void *
+drainIncomingChannel(void *arg)
+{
+  char message[61440];
+  fd_set fdlist;
+  void *ret = arg;
+  struct sockaddr_in cli_addr;
+
+  // Fix for INKqa07688: There was a problem at Genuity where if you
+  // pulled out the cable on the cluster interface (or just ifconfig'd
+  // down/up the cluster interface), the fd associated with that
+  // interface would somehow get into a bad state... and the multicast
+  // packets from other nodes wouldn't be received anymore.
+  //
+  // The fix for the problem was to close() and re-open the multicast
+  // socket if we detected that no activity has occurred for 30
+  // seconds.  30 seconds was based on the default peer_timeout
+  // (proxy.config.cluster.peer_timeout) value.  davey showed that
+  // this value worked out well experimentally (though more testing
+  // and experimentation would be beneficial).
+  //
+  // traffic_manager running w/ no cop: In this case, our select()
+  // call will hang if the fd gets into the bad state.  The solution
+  // is to timeout select if nothing comes in off the network for
+  // sometime.. wake up, and close/open the multicast channel.
+  //
+  // traffic_manager running w/ cop: In this case, our select() will
+  // never timeout (since cop will be heartbeating us).  Some
+  // additional logic was added to keep track of the last successful
+  // mulitcast receive.
+  //
+  // after closing the channel, some addition logic was put into place
+  // to reopen the channel (e.g. opening the socket would fail if the
+  // interface was down).  In this case, the ccom->receive_fd is set
+  // to '-1' and the open is retried until it succeeds.
+  struct timeval tv;
+
+  /* Avert race condition, thread spun during constructor */
+  while (!lmgmt->ccom || !lmgmt->ccom->init) {
+    mgmt_sleep_sec(1);
+  }
+
+  lmgmt->syslogThrInit();
+
+  for (;;) {                    /* Loop draining mgmt network channels */
+    // linux: set tv.tv_set in select() loop, since linux's select()
+    // will update tv with the amount of time not slept (most other
+    // implementations do not do this)
+    tv.tv_sec = lmgmt->ccom->mc_poll_timeout;             // interface not-responding timeout
+    tv.tv_usec = 0;
+
+    memset(message, 0, 61440);
+    FD_ZERO(&fdlist);
+
+    if (lmgmt->ccom->cluster_type != NO_CLUSTER) {
+      FD_SET(lmgmt->ccom->reliable_server_fd, &fdlist);   /* TCP Server fd */
+    }
+
+    mgmt_select(FD_SETSIZE, &fdlist, NULL, NULL, &tv);
+
+    if (FD_ISSET(lmgmt->ccom->reliable_server_fd, &fdlist)) {
+      /* Reliable(TCP) request */
+      int clilen = sizeof(cli_addr);
+      int req_fd = mgmt_accept(lmgmt->ccom->reliable_server_fd, (struct sockaddr *) &cli_addr, &clilen);
+      if (req_fd < 0) {
+        mgmt_elog(stderr, errno, "[drainIncomingChannel] error accepting " "reliable connection\n");
+        continue;
+      }
+      if (fcntl(req_fd, F_SETFD, 1) < 0) {
+        mgmt_elog(stderr, errno, "[drainIncomingChannel] Unable to set close " "on exec flag\n");
+        close(req_fd);
+        continue;
+      }
+
+      // In no cluster mode, the rsport should not be listening.
+      ink_release_assert(lmgmt->ccom->cluster_type != NO_CLUSTER);
+
+      /* Handle Request */
+      if (mgmt_readline(req_fd, message, 61440) > 0) {
+        if (strstr(message, "aresolv: ")) {
+          /* Peer is Resolving our alarm */
+          alarm_t a;
+
+          // coverity[secure_coding]
+          if (sscanf(message, "aresolv: %d", &a) != 1) {
+            close_socket(req_fd);
+            continue;
+          }
+          lmgmt->alarm_keeper->resolveAlarm(a);
+        } else if (strstr(message, "unmap: ")) {
+          /*
+           * Explicit virtual ip unmap request. Note order unmap then
+           * map for strstr.
+           */
+          char msg_ip[80];
+          const char *msg;
+          if (sscanf(message, "unmap: %79s", msg_ip) != 1) {
+            close_socket(req_fd);
+            continue;
+          }
+
+          mgmt_log("[drainIncomingChannel] Got unmap request: '%s'\n", message);
+
+          ink_mutex_acquire(&(lmgmt->ccom->mutex));   /* Grab the lock */
+          if (lmgmt->virt_map->rl_unmap(msg_ip)) {    /* Requires lock */
+            msg = "unmap: done";
+          } else {
+            msg = "unmap: failed";
+          }
+          ink_mutex_release(&(lmgmt->ccom->mutex));   /* Release the lock */
+
+          mgmt_writeline(req_fd, msg, strlen(msg));
+
+          /* Wait for peer to read status */
+          if (mgmt_readline(req_fd, message, 61440) != 0) {
+            mgmt_elog(0, "[drainIncomingChannel] Connection not closed\n");
+          }
+        } else if (strstr(message, "map: ")) {
+          /* Explicit virtual ip map request */
+          char msg_ip[80];
+          const char *msg;
+          if (sscanf(message, "map: %79s", msg_ip) != 1) {
+            close_socket(req_fd);
+            continue;
+          }
+
+          mgmt_log("[drainIncomingChannel] Got map request: '%s'\n", message);
+
+          if (lmgmt->run_proxy) {
+
+            ink_mutex_acquire(&(lmgmt->ccom->mutex)); /* Grab the lock */
+            if (lmgmt->virt_map->rl_map(msg_ip)) {    /* Requires the lock */
+              msg = "map: done";
+            } else {
+              msg = "map: failed";
+            }
+            ink_mutex_release(&(lmgmt->ccom->mutex)); /* Release the lock */
+          } else {
+            msg = "map: failed";
+          }
+
+          mgmt_writeline(req_fd, msg, strlen(msg));
+
+          /* Wait for peer to read status */
+          if (mgmt_readline(req_fd, message, 61440) != 0) {
+            mgmt_elog(0, "[drainIncomingChannel] Connection not closed\n");
+          }
+
+        } else if (strstr(message, "file: ")) {
+          /* Requesting a config file from us */
+          bool stat = false;
+          char fname[1024];
+          version_t ver;
+          textBuffer *buff = NULL;
+          Rollback *rb;
+
+          /* Get the file and blast it back */
+          if (sscanf(message, "file: %1023s %d", fname, &ver) != 2) {
+            close_socket(req_fd);
+            continue;
+          }
+
+          if (configFiles->getRollbackObj(fname, &rb) &&
+              (rb->getCurrentVersion() == ver) && (rb->getVersion(ver, &buff) == OK_ROLLBACK)) {
+            size_t bytes_written = 0;
+            stat = true;
+            bytes_written = write_socket(req_fd, buff->bufPtr(), strlen(buff->bufPtr()));
+            if (bytes_written != strlen(buff->bufPtr())) {
+              stat = false;
+              mgmt_log(stderr, "[drainIncomingChannel] Failed file req: %s v: %d\n", fname, ver);
+            } else {
+              Debug("ccom", "[drainIncomingChannel] file req: %s v: %d bytes: %d\n", fname, ver, (int)strlen(buff->bufPtr()));
+            }
+          } else {
+            mgmt_elog(0, "[drainIncomingChannel] Error file req: %s ver: %d\n", fname, ver);
+          }
+
+          if (!stat) {
+            const char *msg = "file: failed";
+            mgmt_writeline(req_fd, msg, strlen(msg));
+          }
+          if (buff)
+            delete buff;
+        } else if (strstr(message, "cmd: shutdown_manager")) {
+          mgmt_log("[ClusterCom::drainIncomingChannel] Received manager shutdown request\n");
+          lmgmt->mgmtShutdown();
+        } else if (strstr(message, "cmd: shutdown_process")) {
+          mgmt_log("[ClusterCom::drainIncomingChannel] Received process shutdown request\n");
+          lmgmt->processShutdown();
+        } else if (strstr(message, "cmd: restart_process")) {
+          mgmt_log("[ClusterCom::drainIncomingChannel] Received restart process request\n");
+          lmgmt->processRestart();
+        } else if (strstr(message, "cmd: bounce_process")) {
+          mgmt_log("[ClusterCom::drainIncomingChannel] Received bounce process request\n");
+          lmgmt->processBounce();
+        } else if (strstr(message, "cmd: clear_stats")) {
+          char sname[1024];
+          mgmt_log("[ClusterCom::drainIncomingChannel] Received clear stats request\n");
+          if (sscanf(message, "cmd: clear_stats %1023s", sname) != 1) {
+              lmgmt->clearStats(sname);
+          } else {
+              lmgmt->clearStats();
+          }
+        } else if (!checkBackDoor(req_fd, message)) { /* Heh... */
+          mgmt_log("[ClusterCom::drainIncomingChannel] Unexpected message on cluster" " port.  Possibly an attack\n");
+          Debug("ccom", "Unknown message to rsport received: %s", message);
+          close_socket(req_fd);
+          continue;
+        }
+      }
+      close_socket(req_fd);
+    }
+  }
+  return ret;
+}                               /* End drainIncomingChannel */
+
+
+/*
+ * cluster_com_port_watcher(...)
+ *   This function watches updates and changes that are made to the
+ * cluster port. Reconfiguring it if need be.
+ *
+ * Note: the cluster port here is the cluster port for the proxy not
+ * the manager.
+ */
+int
+cluster_com_port_watcher(const char *name, RecDataT /* data_type ATS_UNUSED */, RecData data,
+                         void * /* cookie ATS_UNUSED */)
+{
+  ink_assert(!name);
+
+  ink_mutex_acquire(&(lmgmt->ccom->mutex));     /* Grab cluster lock */
+  lmgmt->ccom->cluster_port = (RecInt) data.rec_int;
+  ink_mutex_release(&(lmgmt->ccom->mutex));     /* Release cluster lock */
+
+  return 0;
+}                               /* End cluster_com_port_watcher */
+
+
+ClusterCom::ClusterCom(unsigned long oip, char *host, int mcport, char *group, int rsport, char *p)
+  : our_wall_clock(0), alive_peers_count(0), reliable_server_fd(0), broadcast_fd(0), receive_fd(0)
+{
+  int rec_err;
+  bool found = false;
+
+  init = false;
+  if (strlen(host) >= 1024) {
+    mgmt_fatal(stderr, 0, "[ClusterCom::ClusterCom] Hostname too large: %s\n", host);
+  }
+  // the constructor does a memset() on broadcast_addr and receive_addr, initializing them
+  // coverity[uninit_member]
+  memset(&broadcast_addr, 0, sizeof(broadcast_addr));
+  memset(&receive_addr, 0, sizeof(receive_addr));
+
+  ink_strlcpy(our_host, host, sizeof(our_host));
+  our_ip = oip;
+
+  /* Get the cluster type */
+  cluster_type = CLUSTER_INVALID;
+  RecInt rec_int;
+
+  rec_err = RecGetRecordInt("proxy.local.cluster.type", &rec_int);
+  cluster_type = (MgmtClusterType) rec_int;
+  found = (rec_err == REC_ERR_OKAY);
+  ink_assert(found);
+
+  switch (cluster_type) {
+  case FULL_CLUSTER:
+  case MGMT_CLUSTER:
+  case NO_CLUSTER:
+    break;
+  case CLUSTER_INVALID:
+  default:
+    mgmt_log(stderr, "[ClusterCom::ClusterCom] Invalid cluster type.  " "Defaulting to full clustering\n");
+    cluster_type = FULL_CLUSTER;
+    break;
+  }
+  /* Get the cluster config file name + path */
+  RecString cluster_file;
+
+  rec_err = RecGetRecordString_Xmalloc("proxy.config.cluster.cluster_configuration", &cluster_file);
+  found = (rec_err == REC_ERR_OKAY);
+
+  if (!found) {
+    mgmt_fatal(stderr, 0, "[ClusterCom::ClusterCom] no cluster_configuration filename configured\n");
+  }
+
+  if (strlen(p) + strlen(cluster_file) >= 1024) {
+    mgmt_fatal(stderr, 0, "[ClusterCom::ClusterCom] path + filename too large\n");
+  }
+  // XXX: This allows to have absolute config cluster_configuration directive.
+  //      If that file must be inside config directory (p) use
+  //      ink_filepath_make
+  ink_filepath_merge(cluster_conf, sizeof(cluster_conf), p, cluster_file, INK_FILEPATH_TRUENAME);
+  // XXX: Shouldn't we pass the cluster_conf to the Rollback ???
+  //
+  Debug("ccom", "[ClusterCom::ClusterCom] Using cluster file: %s", cluster_file);
+  Debug("ccom", "[ClusterCom::ClusterCom] Using cluster conf: %s", cluster_conf);
+  cluster_file_rb = new Rollback(cluster_file, false);
+
+  ats_free(cluster_file);
+
+  if (ink_sys_name_release(sys_name, sizeof(sys_name), sys_release, sizeof(sys_release)) >= 0) {
+    mgmt_log("[ClusterCom::ClusterCom] Node running on OS: '%s' Release: '%s'\n", sys_name, sys_release);
+  } else {
+    sys_name[0] = sys_release[0] = '\0';
+    mgmt_elog(errno, "[ClusterCom::ClusterCom] Unable to determime OS and release info\n");
+  }
+
+  /* Grab the proxy cluster port */
+  cluster_port = REC_readInteger("proxy.config.cluster.cluster_port", &found);
+  RecRegisterConfigUpdateCb("proxy.config.cluster.cluster_port", cluster_com_port_watcher, NULL);
+
+  if (!(strlen(group) < (MAX_MC_GROUP_LEN - 1))) {
+    mgmt_fatal(stderr, 0, "[ClusterCom::ClusterCom] mc group length too large!\n");
+  }
+
+  ink_strlcpy(mc_group, group, sizeof(mc_group));
+  mc_port = mcport;
+  reliable_server_port = rsport;
+
+  mc_ttl = REC_readInteger("proxy.config.cluster.mc_ttl", &found);
+  ink_assert(found);
+
+  log_bogus_mc_msgs = REC_readInteger("proxy.config.cluster.log_bogus_mc_msgs", &found);
+  ink_assert(found);
+
+  /* Timeout between config changes, basically a clock noise filter */
+  delta_thresh = REC_readInteger("proxy.config.cluster.delta_thresh", &found);
+  ink_assert(found);
+
+  /* The timeout before marking a peer as dead */
+  peer_timeout = REC_readInteger("proxy.config.cluster.peer_timeout", &found);
+  ink_assert(found);
+
+  mc_send_interval = REC_readInteger("proxy.config.cluster.mc_send_interval", &found);
+  ink_assert(found);
+
+  mc_poll_timeout = REC_readInteger("proxy.config.cluster.mc_poll_timeout", &found);
+  ink_assert(found);
+
+  /* Launch time */
+  startup_time = time(NULL);
+
+  /* Timeout before broadcasting virtual ip information */
+  startup_timeout = REC_readInteger("proxy.config.cluster.startup_timeout", &found);
+  ink_assert(found);
+
+  last_shared_send = 0;
+
+  ink_mutex_init(&mutex, "ccom-mutex");
+  peers = ink_hash_table_create(InkHashTableKeyType_String);
+  mismatchLog = ink_hash_table_create(InkHashTableKeyType_String);
+
+  if (cluster_type != NO_CLUSTER) {
+    ink_thread_create(drainIncomingChannel_broadcast, 0);   /* Spin drainer thread */
+    ink_thread_create(drainIncomingChannel, 0);   /* Spin drainer thread */
+  }
+  return;
+}                               /* End ClusterCom::ClusterCom */
+
+
+/*
+ * checkPeers(...)
+ *   Function checks on our peers by racing through the peer list(ht) and
+ * marking nodes as idle/dead if we have not heard from them in awhile.
+ */
+void
+ClusterCom::checkPeers(time_t * ticker)
+{
+  static int number_of_nodes = -1;
+  bool signal_alarm = false;
+  time_t t = time(NULL);
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if (cluster_type == NO_CLUSTER)
+    return;
+
+  if ((t - *ticker) > 5) {
+    int num_peers = 0;
+    long idle_since;
+    textBuffer *buff;
+
+    Debug("ccom", "MultiCast Messages received: %d", MultiCastMessages);
+
+    /*
+     * Need the lock here so that someone doesn't change the peer hash
+     * table out from underneath you.
+     */
+    ink_mutex_acquire(&(mutex));        /* Grab cluster lock */
+    for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+         entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+      ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+      if ((idle_since = t - tmp->idle_ticks) > peer_timeout) {
+        char cip[80];
+        struct in_addr addr;
+        addr.s_addr = tmp->inet_address;
+
+        ink_strlcpy(cip, inet_ntoa(addr), sizeof(cip));
+
+        Debug("ccom",
+              "[ClusterCom::checkPeers] DEAD! %s idle since: %ld naddrs: %d\n", cip, idle_since, tmp->num_virt_addrs);
+
+        if ((idle_since = t - tmp->manager_idle_ticks) > peer_timeout) {
+          if (tmp->manager_alive > 0) {
+            Note("marking manager on node %s as down", cip);
+          }
+          tmp->manager_alive = -1;
+          Debug("ccom", "[ClusterCom::checkPeers] Manager DEAD! %s idle since: %ld\n", cip, idle_since);
+        }
+
+        if (tmp->num_virt_addrs >= 0) {
+          Note("marking server on node %s as down", cip);
+        }
+
+        tmp->num_virt_addrs = -1;       /* This is basically the I'm dead flag */
+        if (tmp->num_virt_addrs) {
+          lmgmt->virt_map->rl_resetSeenFlag(cip);
+          lmgmt->virt_map->rl_clearUnSeen(cip);
+        }
+      }
+    }
+
+    /* Create the base for the cluster file(inserting header comment) */
+    buff = new textBuffer(strlen(CLUSTER_CONFIG_FILE_BLURB) + 1024);
+    buff->copyFrom(CLUSTER_CONFIG_FILE_BLURB, strlen(CLUSTER_CONFIG_FILE_BLURB));
+
+    if (cluster_type == FULL_CLUSTER) {
+      /*
+       * Two pass loop. First loop over the peers hash table and count
+       * the number of peers. Second construct the new cluster config
+       * file for the proxy.
+       */
+      for (int c = 0; c <= 1; c++) {
+        bool flag = false;      /* Used to mark first loop on second pass */
+
+        for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+             entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+          char str_number[80];
+          char *key = (char *) ink_hash_table_entry_key(peers, entry);
+          ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+
+          if (!c) {             /* First pass */
+            if (tmp->num_virt_addrs != -1) {    /* Count if not dead */
+              num_peers++;
+            }
+          } else if (!flag) {
+
+            /*
+             * First time through second pass, cluster config file needs
+             * to start with the number of nodes in the cluster, so we
+             * stick this in the file
+             */
+            snprintf(str_number, sizeof(str_number), "%d\n", num_peers);
+            buff->copyFrom(str_number, strlen(str_number));
+            flag = true;
+          } else if (num_peers == number_of_nodes) {
+            /*
+             * If the number of peers in the hash_table is the same as the
+             * last time we checked, then we have emitted this file before.
+             *
+             * FIX: there is potentially a case where a node comes in and
+             *      a node leaves(for good) and we don't notice the change
+             *      of guard.
+             */
+            break;
+          }
+
+          if (c && tmp->num_virt_addrs != -1) {
+
+            /* Second pass, add entry to the file "ip:port" */
+            buff->copyFrom(key, strlen(key));
+            snprintf(str_number, sizeof(str_number), ":%d\n", tmp->port);
+            buff->copyFrom(str_number, strlen(str_number));
+          }
+        }
+
+
+        if (num_peers == number_of_nodes) {
+          /*
+           * If the number of peers in the hash_table is the same as the
+           * last time we checked, then we have emitted this file before.
+           *
+           * FIX: there is potentially a case where a node comes in and
+           *      a node leaves(for good) and we don't notice the change
+           *      of guard.
+           */
+          break;
+        } else if (num_peers == 0 && !c) {
+          /*
+           *Handle the standalone case, you are on the second pass and
+           * there are no peers. Proxy expects 0 to be in the file to
+           * signify standalone case.
+           */
+          buff->copyFrom("0\n", strlen("0\n"));
+          break;
+        }
+      }
+    } else {
+      // We are not doing full clustering so we also tell the
+      //   proxy there are zero nodes in the cluster
+      buff->copyFrom("0\n", strlen("0\n"));
+    }
+    /*
+     * The number of peers have changed, output the new file, this will
+     * trigger an update callback which will eveutually signal the proxy.
+     */
+    if (num_peers != number_of_nodes) {
+      if (cluster_file_rb->forceUpdate(buff) != OK_ROLLBACK) {
+        mgmt_elog(0, "[ClusterCom::checkPeers] Failed update: cluster.config\n");
+        signal_alarm = true;    /* Throw the alarm after releasing the lock */
+      } else {
+        number_of_nodes = num_peers;    /* Update the static count */
+        alive_peers_count = num_peers;
+      }
+    }
+    delete buff;
+    ink_mutex_release(&(mutex));        /* Release cluster lock */
+    if (signal_alarm) {
+      /*
+      lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_SYSTEM_ERROR,
+                                       "[TrafficManager] Unable to write cluster.config, membership unchanged");
+      */
+      mgmt_elog(0, "[TrafficManager] Unable to write cluster.config, membership unchanged");
+    }
+    *ticker = t;
+  }
+
+  /*
+   * Here we aggregate cluster stats from the stored peers stats and our
+   * node stats.
+   */
+  // fix me -- what does aggregated_node_data do?
+
+  ink_mutex_acquire(&(mutex));  /* Grab the cluster lock */
+  for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+    ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+
+    /* Skip nodes we've flagged as dead */
+    if (tmp->num_virt_addrs == -1) {
+      continue;
+    }
+    // fix me -- what does aggregated_node_data do?
+  }
+  ink_mutex_release(&(mutex));  /* Release the cluster lock */
+
+  return;
+}                               /* End ClusterCom::checkPeers */
+
+
+void
+ClusterCom::generateClusterDelta(void)
+{
+  long highest_delta = 0L;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if (cluster_type == NO_CLUSTER)
+    return;
+
+  ink_mutex_acquire(&(mutex));
+  for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+    ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+
+    // is the node alive?
+    if (tmp->num_virt_addrs != -1) {
+      highest_delta = max(highest_delta, tmp->delta);
+    }
+  }
+  ink_mutex_release(&(mutex));
+
+  // only transmit if different
+  if (highest_delta != LastHighestDelta) {
+    LastHighestDelta = highest_delta;
+    char highest_delta_str[32];
+    snprintf(highest_delta_str, 31, "%ld", highest_delta);
+    lmgmt->signalEvent(MGMT_EVENT_HTTP_CLUSTER_DELTA, highest_delta_str);
+  }
+
+}                               /* End ClusterCom::generateClusterDelta */
+
+
+/*
+ * handleMultCastMessage(...)
+ *   Function is called to handle(parse) messages received from the broadcast
+ * channel.
+ */
+void
+ClusterCom::handleMultiCastMessage(char *message)
+{
+  int peer_cluster_port, ccom_port;
+  char *last, *line, ip[1024], hostname[1024];
+  char tsver[128] = "Before 2.X";
+  char cluster_name[1024] = "UNKNOWN";
+  RecT type;
+  ClusterPeerInfo *p;
+  time_t peer_wall_clock,t;
+  InkHashTableValue hash_value;
+
+  ++MultiCastMessages;
+
+  t = time(NULL);               /* Get current time for determining most recent changes */
+  our_wall_clock = t;
+
+  /* Grab the ip address, we need to know this so that we only complain
+     once about a cluster name or traffic server version mismatch */
+  if ((line = strtok_r(message, "\n", &last)) == NULL)
+    goto Lbogus;                /* IP of sender */
+
+  // coverity[secure_coding]
+  if (strlen(line) >= sizeof(ip) || sscanf(line, "ip: %s", ip) != 1)
+    goto Lbogus;
+
+  // FIX THIS: elam 02/23/1999
+  //   Loopback disable is currently not working on NT.
+  //   We will ignore our own multicast messages.
+  if (inet_addr(ip) == our_ip) {
+    return;
+  }
+
+  /* Make sure this is a message for the cluster we belong to */
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* ClusterName of sender */
+
+  // coverity[secure_coding]
+  if (strlen(line) >= sizeof(cluster_name) || sscanf(line, "cluster: %s", cluster_name) != 1)
+    goto Lbogus;
+
+  if (strcmp(cluster_name, lmgmt->proxy_name) != 0) {
+    logClusterMismatch(ip, TS_NAME_MISMATCH, cluster_name);
+    return;
+  }
+
+  /* Make sure this a message from a Traffic Server of the same version */
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* TS version of sender */
+
+  // coverity[secure_coding]
+  if (strlen(line) >= sizeof(tsver) || sscanf(line, "tsver: %s", tsver) != 1 || strcmp(line + 7, appVersionInfo.VersionStr) != 0) {
+    logClusterMismatch(ip, TS_VER_MISMATCH, tsver);
+    return;
+  }
+
+  /* Figure out what type of message this is */
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;
+  if (strcmp("type: files", line) == 0) {       /* Config Files report */
+    handleMultiCastFilePacket(last, ip);
+    return;
+  } else if (strcmp("type: stat", line) == 0) { /* Statistics report */
+    type = RECT_CLUSTER;
+  } else if (strcmp("type: alarm", line) == 0) {        /* Alarm report */
+    handleMultiCastAlarmPacket(last, ip);
+    return;
+  } else if (strcmp("type: vmap", line) == 0) { /* Virtual Map report */
+    handleMultiCastVMapPacket(last, ip);
+    return;
+  } else {
+    mgmt_elog(0, "[ClusterCom::handleMultiCastMessage] Invalid type msg: '%s'\n", line);
+    return;
+  }
+
+  /* Check OS and version info */
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* OS of sender */
+  if (!strstr(line, "os: ") || !strstr(line, sys_name)) {
+    /*
+    lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_SYSTEM_ERROR,
+                                     "Received Multicast message from peer running mis-match"
+                                     " Operating system, please investigate");
+    */
+    Debug("ccom", "[ClusterCom::handleMultiCastMessage] Received message from peer "
+              "running different os/release '%s'(ours os: '%s' rel: '%s'\n", line, sys_name, sys_release);
+  }
+
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* OS-Version of sender */
+  if (!strstr(line, "rel: ") || !strstr(line, sys_release)) {
+    /*
+    lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_PROXY_SYSTEM_ERROR,
+                                     "Received Multicast message from peer running mis-match"
+                                     " Operating system release, please investigate");
+    */
+    Debug("ccom", "[ClusterCom::handleMultiCastMessage] Received message from peer "
+              "running different os/release '%s'(ours os: '%s' rel: '%s'\n", line, sys_name, sys_release);
+  }
+
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* Hostname of sender */
+  if (strlen(line) >= sizeof(hostname) || sscanf(line, "hostname: %s", hostname) != 1) {
+    mgmt_elog(0, "[ClusterCom::handleMultiCastMessage] Invalid message-line(%d) '%s'\n", __LINE__, line);
+    return;
+  }
+
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* mc_port of sender */
+  if (sscanf(line, "port: %d", &peer_cluster_port) != 1) {
+    mgmt_elog(0, "[ClusterCom::handleMultiCastMessage] Invalid message-line(%d) '%s'\n", __LINE__, line);
+    return;
+  }
+
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;                /* rs_port of sender */
+  if (sscanf(line, "ccomport: %d", &ccom_port) != 1) {
+    mgmt_elog(0, "[ClusterCom::handleMultiCastMessage] Invalid message-line(%d) '%s'\n", __LINE__, line);
+    return;
+  }
+
+  /* Their wall clock time and last config change time */
+  if ((line = strtok_r(NULL, "\n", &last)) == NULL)
+    goto Lbogus;
+  int64_t tt;
+  if (sscanf(line, "time: %" PRId64 "", &tt) != 1) {
+    mgmt_elog(0, "[ClusterCom::handleMultiCastMessage] Invalid message-line(%d) '%s'\n", __LINE__, line);
+    return;
+  }
+  peer_wall_clock = (time_t)tt;
+
+  /* Have we see this guy before? */
+  ink_mutex_acquire(&(mutex));  /* Grab cluster lock to access hash table */
+  if (ink_hash_table_lookup(peers, (InkHashTableKey) ip, &hash_value) == 0) {
+    ink_assert((p = (ClusterPeerInfo *)ats_malloc(sizeof(ClusterPeerInfo))));
+    p->inet_address = inet_addr(ip);
+    p->num_virt_addrs = 0;
+
+    // Safe since these are completely static
+    // TODO: This might no longer be completely optimal, since we don't keep track of
+    // how many RECT_NODE stats there are. I'm hoping it's negligible though, but worst
+    // case we can reoptimize this later (and more efficiently).
+    int cnt = 0;
+    p->node_rec_data.recs = (RecRecord *)ats_malloc(sizeof(RecRecord) * g_num_records);
+    for (int j = 0; j < g_num_records; j++) {
+      RecRecord *rec = &(g_records[j]);
+
+      /*
+       * The following code make sence only when RECT_NODE records
+       * defined in mgmt/RecordsConfig.cc are placed continuously.
+       */
+      if (rec->rec_type == RECT_NODE) {
+        p->node_rec_data.recs[cnt].rec_type = rec->rec_type;
+        p->node_rec_data.recs[cnt].name = rec->name;
+        p->node_rec_data.recs[cnt].data_type = rec->data_type;
+        memset(&p->node_rec_data.recs[cnt].data, 0, sizeof(rec->data));
+        memset(&p->node_rec_data.recs[cnt].data_default, 0, sizeof(rec->data_default));
+        p->node_rec_data.recs[cnt].lock = rec->lock;
+        p->node_rec_data.recs[cnt].sync_required = rec->sync_required;
+        ++cnt;
+      }
+    }
+    p->node_rec_data.num_recs = cnt;
+
+    ink_hash_table_insert(peers, (InkHashTableKey) ip, (p));
+    ink_hash_table_delete(mismatchLog, ip);
+
+    Note("adding node %s to the cluster", ip);
+  } else {
+    p = (ClusterPeerInfo *) hash_value;
+    if (p->manager_alive < 0) {
+      Note("marking manager on node %s as up", ip);
+    }
+    if (our_wall_clock - p->idle_ticks > peer_timeout) {
+      Note("marking server on node %s as up", ip);
+    }
+  }
+  p->port = peer_cluster_port;
+  p->ccom_port = ccom_port;
+  p->idle_ticks = p->manager_idle_ticks = our_wall_clock;
+  p->last_time_recorded = peer_wall_clock;
+  p->delta = peer_wall_clock - our_wall_clock;
+  p->manager_alive = 1;
+
+  ink_assert(type == RECT_CLUSTER);
+  handleMultiCastStatPacket(last, p);
+  ink_mutex_release(&(mutex));  /* Release cluster lock */
+
+  return;
+
+Lbogus:
+  if (log_bogus_mc_msgs) {
+    mgmt_elog(0, "[ClusterCom::handleMultiCastMessage] Bogus mc message-line\n");
+    if (line) {
+      Debug("ccom", "[ClusterCom::handleMultiCastMessage] Bogus mc message-line %s\n", line);
+    }
+    return;
+  }
+}                               /* End ClusterCom::handleMultiCastMessage */
+
+
+/*
+ * handleMultiCastStatPacket(...)
+ *   Function groks the stat packets received on the mc channel and updates
+ * our local copy of our peers stats.
+ */
+void
+ClusterCom::handleMultiCastStatPacket(char *last, ClusterPeerInfo * peer)
+{
+  char *line;
+  RecRecords *rec_ptr = NULL;
+  int tmp_id = -1;
+  RecDataT tmp_type = RECD_NULL;
+  RecRecord *rec = NULL;
+
+  /* Loop over records, updating peer copy(summed later) */
+  rec_ptr = &(peer->node_rec_data);
+  for (int i = 0; (line = strtok_r(NULL, "\n", &last)) && i < rec_ptr->num_recs; i++) {
+
+    tmp_id = -1;
+    tmp_type = RECD_NULL;
+    rec = &(rec_ptr->recs[i]);
+    //    rec      = &(g_records[g_type_records[RECT_NODE][i]]);
+
+    switch (rec->data_type) {
+    case RECD_INT:
+    case RECD_COUNTER:{
+        RecInt tmp_msg_val = -1;
+        tmp_id = ink_atoi(line);
+        char *v2 = strchr(line, ':'), *v3 = NULL;
+        if (v2) {
+          tmp_type = (RecDataT) ink_atoi(v2 + 1);
+          v3 = strchr(v2 + 1, ':');
+          if (v3)
+            tmp_msg_val = ink_atoi64(v3 + 1);
+        }
+        if (!v2 || !v3) {
+          mgmt_elog(0, "[ClusterCom::handleMultiCastStatPacket] Invalid message-line(%d) '%s'\n", __LINE__, line);
+          return;
+        }
+        ink_assert(i == tmp_id && rec->data_type == tmp_type);
+        ink_release_assert(i == tmp_id && rec->data_type == tmp_type);
+        if (!(i == tmp_id && rec->data_type == tmp_type)) {
+          return;
+        }
+
+        if (rec->data_type == RECD_INT) {
+          rec->data.rec_int = tmp_msg_val;
+        } else {
+          rec->data.rec_counter = tmp_msg_val;
+        }
+        break;
+      }
+    case RECD_FLOAT:{
+        MgmtFloat tmp_msg_val = -1.0;
+        // the types specified are all have a defined constant size
+        // coverity[secure_coding]
+        if (sscanf(line, "%d:%d: %f", &tmp_id, (int *) &tmp_type, &tmp_msg_val) != 3) {
+          mgmt_elog(0, "[ClusterCom::handleMultiCastStatPacket] Invalid message-line(%d) '%s'\n", __LINE__, line);
+          return;
+        }
+        ink_assert(i == tmp_id && rec->data_type == tmp_type);
+        ink_release_assert(i == tmp_id && rec->data_type == tmp_type);
+        if (!(i == tmp_id && rec->data_type == tmp_type)) {
+          return;
+        }
+
+        rec->data.rec_float = tmp_msg_val;
+        break;
+      }
+    case RECD_STRING:{         /* String stats not supported for cluster passing */
+        int ccons;
+        char *tmp_msg_val = NULL;
+
+        // the types specified are all have a defined constant size
+        // coverity[secure_coding]
+        if (sscanf(line, "%d:%d: %n", &tmp_id, (int *) &tmp_type, &ccons) != 2) {
+          mgmt_elog(0, "[ClusterCom::handleMultiCastStatPacket] Invalid message-line(%d) '%s'\n", __LINE__, line);
+          return;
+        }
+        tmp_msg_val = &line[ccons];
+        ink_assert(i == tmp_id && rec->data_type == tmp_type);
+        ink_release_assert(i == tmp_id && rec->data_type == tmp_type);
+        if (!(i == tmp_id && rec->data_type == tmp_type)) {
+          return;
+        }
+
+        if (strcmp(tmp_msg_val, "NULL") == 0 && rec->data.rec_string) {
+          ats_free(rec->data.rec_string);
+          rec->data.rec_string = NULL;
+        } else if (!(strcmp(tmp_msg_val, "NULL") == 0)) {
+          ats_free(rec->data.rec_string);
+          int rec_string_size = strlen(tmp_msg_val) + 1;
+          ink_assert((rec->data.rec_string = (RecString)ats_malloc(rec_string_size)));
+          ink_strlcpy(rec->data.rec_string, tmp_msg_val, rec_string_size);
+        }
+        break;
+      }
+    default:
+      ink_assert(false);
+      break;
+    }
+  }
+  return;
+}                               /* End ClusterCom::handleMultiCastStatPacket */
+
+//-------------------------------------------------------------------------
+// INKqa08381 - These functions are called by
+// ClusterCom::handleMultiCastFilePacket(); required so that we only
+// sync records.config CONFIG values (not LOCAL values) across a
+// records.config cluster syncronize operation.
+//-------------------------------------------------------------------------
+bool
+scan_and_terminate(char *&p, char a, char b)
+{
+  bool eob = false;             // 'eob' is end-of-buffer
+  while ((*p != a) && (*p != b) && (*p != '\0'))
+    p++;
+  if (*p == '\0') {
+    eob = true;
+  } else {
+    *(p++) = '\0';
+    while ((*p == a) || ((*p == b) && (*p != '\0')))
+      p++;
+    if (*p == '\0')
+      eob = true;
+  }
+  return eob;
+}
+
+void
+extract_locals(MgmtHashTable * local_ht, char *record_buffer)
+{
+  char *p, *q, *line, *line_cp, *name;
+  bool eof;
+  p = record_buffer;
+  for (eof = false; !eof;) {
+    line = q = p;
+    eof = scan_and_terminate(p, '\r', '\n');
+    Debug("ccom_rec", "[extract_locals] %s\n", line);
+    while ((*q == ' ') || (*q == '\t'))
+      q++;
+    // is this line a LOCAL?
+    if (strncmp(q, "LOCAL", strlen("LOCAL")) == 0) {
+      line_cp = ats_strdup(line);
+      q += strlen("LOCAL");
+      while ((*q == ' ') || (*q == '\t'))
+        q++;
+      name = q;
+      if (scan_and_terminate(q, ' ', '\t')) {
+        Debug("ccom_rec", "[extract_locals] malformed line: %s\n", name);
+        ats_free(line_cp);
+        continue;
+      }
+      local_ht->mgmt_hash_table_insert(name, line_cp);
+    }
+  }
+}
+
+bool
+insert_locals(textBuffer * rec_cfg_new, textBuffer * rec_cfg, MgmtHashTable * local_ht)
+{
+  char *p, *q, *line, *name;
+  bool eof;
+  InkHashTableEntry *hte;
+  InkHashTableIteratorState htis;
+  MgmtHashTable *local_access_ht = new MgmtHashTable("local_access_ht", false, InkHashTableKeyType_String);
+  p = rec_cfg->bufPtr();
+  for (eof = false; !eof;) {
+    line = q = p;
+    eof = scan_and_terminate(p, '\r', '\n');
+    Debug("ccom_rec", "[insert_locals] %s\n", line);
+    while ((*q == ' ') || (*q == '\t'))
+      q++;
+    // is this line a local?
+    if (strncmp(q, "LOCAL", strlen("LOCAL")) == 0) {
+      q += strlen("LOCAL");
+      while ((*q == ' ') || (*q == '\t'))
+        q++;
+      name = q;
+      if (scan_and_terminate(q, ' ', '\t')) {
+        Debug("ccom_rec", "[insert_locals] malformed line: %s\n", name);
+        continue;
+      }
+      if (local_ht->mgmt_hash_table_lookup(name, (void **) &line)) {
+        // LOCAL found in hash-table; 'line' points to our LOCAL
+        // value; keep track that we accessed this LOCAL already;
+        // later, we need to iterate through all of our un-accessed
+        // LOCALs and add them to the bottom of the remote config
+        local_access_ht->mgmt_hash_table_insert(name, 0);
+      } else {
+        // LOCAL didn't exist in our config, don't merge into the
+        // remote config
+        continue;
+      }
+    }
+    // copy the whole line over
+    rec_cfg_new->copyFrom(line, strlen(line));
+    rec_cfg_new->copyFrom("\n", strlen("\n"));
+  }
+  // remove any of our accessed LOCALs from local_ht
+  for (hte = local_access_ht->mgmt_hash_table_iterator_first(&htis);
+       hte != NULL; hte = local_access_ht->mgmt_hash_table_iterator_next(&htis)) {
+    name = (char *) local_access_ht->mgmt_hash_table_entry_key(hte);
+    local_ht->mgmt_hash_table_delete(name);
+  }
+  // add our un-accessed LOCALs to the remote config
+  for (hte = local_ht->mgmt_hash_table_iterator_first(&htis);
+       hte != NULL; hte = local_ht->mgmt_hash_table_iterator_next(&htis)) {
+    line = (char *) local_ht->mgmt_hash_table_entry_value(hte);
+    rec_cfg_new->copyFrom(line, strlen(line));
+    rec_cfg_new->copyFrom("\n", strlen("\n"));
+  }
+  // clean-up and return
+  delete local_access_ht;
+  return true;
+}
+
+/*
+ * handleMultiCastFilePacket(...)
+ *   Functions handles file packets that come over the mc channel. Its
+ * basic job is to determine whether or not the timestamps/version
+ * numbers that its peers are reporting are newer than the timestamps
+ * and versions of the local config files. If there is a mis-match and
+ * their files are newer then we initiate a request to get the newer file
+ * and then roll that into our own config files.
+ */
+void
+ClusterCom::handleMultiCastFilePacket(char *last, char *ip)
+{
+  char *line, file[1024];
+  version_t ver, our_ver;
+  int64_t tt;
+  InkHashTableValue hash_value;
+  bool file_update_failure;
+
+  while ((line = strtok_r(NULL, "\n", &last))) {
+    Rollback *rb;
+
+    file_update_failure = false;
+    // coverity[secure_coding]
+    if (sscanf(line, "%1023s %d %" PRId64 "\n", file, &ver, &tt) != 3) {
+      mgmt_elog(0, "[ClusterCom::handleMultiCastFilePacket] Invalid message-line(%d) '%s'\n", __LINE__, line);
+      return;
+    }
+
+    if (configFiles->getRollbackObj(file, &rb)) {
+
+      our_ver = rb->getCurrentVersion();
+      if (ver > our_ver) {      /* Their version is newer */
+        /*
+         * FIX: we have the timestamp from them as well, should we also
+         * figure that into this? or are version numbers sufficient?
+         *
+         * (mod > rb->versionTimeStamp(our_ver)
+         *
+         * When fixing this, watch out for the workaround put in place
+         * for INKqa08567.  File timestamps aren't sent around the
+         * cluster anymore.
+         */
+        char message[1024];
+        textBuffer *reply = new textBuffer(2048);       /* Start with 2k file size */
+        snprintf(message, sizeof(message), "file: %s %d", file, ver);
+
+        /* Send request, read response, write new file. */
+        if (!(sendReliableMessageReadTillClose(inet_addr(ip), message, strlen(message), reply)) || (reply->spaceUsed() <= 0)) {
+          delete reply;
+          return;
+        }
+
+        if (strstr(reply->bufPtr(), "file: failed")) {
+          file_update_failure = true;
+        }
+        // INKqa08381: Special case for records.config; we only want
+        // to syncronize CONFIG records from remote machine, not LOCAL
+        // records; store our LOCAL records in a hash-table, and then
+        // merge our LOCALs into the newly acquired remote config.
+        if (!file_update_failure && (strcmp(file, "records.config") == 0)) {
+          textBuffer *our_rec_cfg;
+          char *our_rec_cfg_cp;
+          textBuffer *reply_new;
+          MgmtHashTable *our_locals_ht;
+
+          if (rb->getVersion(our_ver, &our_rec_cfg) != OK_ROLLBACK) {
+            file_update_failure = true;
+          } else {
+            our_locals_ht = new MgmtHashTable("our_locals_ht", true, InkHashTableKeyType_String);
+            our_rec_cfg_cp = ats_strdup(our_rec_cfg->bufPtr());
+            extract_locals(our_locals_ht, our_rec_cfg_cp);
+            reply_new = new textBuffer(reply->spaceUsed());
+            if (!insert_locals(reply_new, reply, our_locals_ht)) {
+              file_update_failure = true;
+              delete reply_new;
+              reply_new = 0;
+            } else {
+              delete reply;
+              reply = reply_new;
+            }
+            ats_free(our_rec_cfg_cp);
+            delete our_rec_cfg;
+            delete our_locals_ht;
+          }
+        }
+
+        if (!file_update_failure && (rb->updateVersion(reply, our_ver, ver, true, false) != OK_ROLLBACK)) {
+          file_update_failure = true;
+        }
+
+        if (file_update_failure) {
+          mgmt_elog(0, "[ClusterCom::handleMultiCastFilePacket] Update failed\n");
+        } else {
+          mgmt_log(stderr, "[ClusterCom::handleMultiCastFilePacket] " "Updated '%s' o: %d n: %d\n", file, our_ver, ver);
+        }
+
+        delete reply;
+
+      }
+    } else {
+      mgmt_elog(0, "[ClusterCom::handleMultiCastFilePacket] Unknown file seen: '%s'\n", file);
+    }
+  }
+
+  ink_mutex_acquire(&(mutex));  /* Grab cluster lock to access hash table */
+  if (ink_hash_table_lookup(peers, (InkHashTableKey) ip, &hash_value) != 0) {
+    ((ClusterPeerInfo *) hash_value)->manager_idle_ticks = time(NULL);
+    if (((ClusterPeerInfo *) hash_value)->manager_alive < 0) {
+      Note("marking manager on node %s as up", ip);
+    }
+    ((ClusterPeerInfo *) hash_value)->manager_alive = 1;
+  }
+  ink_mutex_release(&(mutex));  /* Release cluster lock */
+
+  return;
+}                               /* End ClusterCom::handleMultiCastFilePacket */
+
+
+/*
+ * handleMultiCastAlarmPacket(...)
+ *   Function receives incoming alarm messages and updates the alarms class.
+ */
+void
+ClusterCom::handleMultiCastAlarmPacket(char *last, char *ip)
+{
+  char *line;
+
+  /* Allows us to expire stale alarms */
+  lmgmt->alarm_keeper->resetSeenFlag(ip);
+  while ((line = strtok_r(NULL, "\n", &last))) {
+    int ccons;
+    alarm_t a;
+    char *desc;
+
+    if (strcmp(line, "alarm: none") == 0) {
+      break;
+    }
+    // both types have a finite size
+    // coverity[secure_coding]
+    if (sscanf(line, "alarm: %d %n", &a, &ccons) != 1) {
+      mgmt_elog(0, "[ClusterCom::handleMultiCastAlarmPacket] Invalid message-line(%d) '%s'\n", __LINE__, line);
+      return;
+    }
+
+    desc = &line[ccons];
+
+    /* Signalling will only re-issue if new */
+    lmgmt->alarm_keeper->signalAlarm(a, desc, ip);
+    Debug("ccom", "[ClusterCom::handleMultiCastAlarmPacket] Alarm: ip: '%s' '%s'\n", ip, line);
+  }
+  lmgmt->alarm_keeper->clearUnSeen(ip); /* Purge expired alarms */
+  return;
+}                               /* End ClusterCom::handleMultiCastAlarmPacket */
+
+
+/*
+ * handleMultiCastVMapPacket(...)
+ *   Handles incoming reports from peers about which virtual interfaces
+ * they are servicing. This then updates the VMap class to indicate who
+ * is holding what.
+ */
+void
+ClusterCom::handleMultiCastVMapPacket(char *last, char *ip)
+{
+  char *line;
+  InkHashTableValue hash_value;
+
+  ink_mutex_acquire(&(mutex));  /* VMap class uses cluster mutex */
+  lmgmt->virt_map->rl_resetSeenFlag(ip);        /* Ala alarms */
+  ink_mutex_release(&(mutex));
+
+  while ((line = strtok_r(NULL, "\n", &last))) {
+    char vaddr[80];
+
+    if (strcmp(line, "virt: none") == 0) {
+      break;
+    }
+    // coverity[secure_coding]
+    if (sscanf(line, "virt: %79s", vaddr) != 1) {
+      mgmt_elog(0, "[ClusterCom::handleMultiCastVMapPacket] Invalid message-line(%d) '%s'\n", __LINE__, line);
+      return;
+    }
+
+    ink_mutex_acquire(&(mutex));
+    lmgmt->virt_map->rl_map(vaddr, ip); /* Record this nodes map */
+    ink_mutex_release(&(mutex));
+  }
+
+  ink_mutex_acquire(&(mutex));
+  if (ink_hash_table_lookup(peers, ip, &hash_value) != 0) {
+    ((ClusterPeerInfo *) hash_value)->num_virt_addrs = lmgmt->virt_map->rl_clearUnSeen(ip);
+  }
+  ink_mutex_release(&(mutex));
+  return;
+}                               /* End ClusterCom::handleMultiCastVMapPacket */
+
+
+/*
+ * sendSharedData
+ *   Function serves as aggregator of NODE data to be shared with the
+ * cluster. It collects the data, formats the message, and finally broadcasts
+ * the message.
+ */
+bool
+ClusterCom::sendSharedData(bool send_proxy_heart_beat)
+{
+  char message[61440], addr[80];
+  struct in_addr resolved_addr;
+  time_t now;
+
+  if (cluster_type == NO_CLUSTER) {
+    return true;
+  }
+
+  now = time(NULL);
+  if (now == -1) {
+    // The time call failed
+    last_shared_send = 0;
+  } else {
+    int time_since_last_send = now - last_shared_send;
+    if (last_shared_send != 0 && time_since_last_send > peer_timeout) {
+      Warning("multicast send timeout exceeded.  %d seconds since" " last send.", time_since_last_send);
+    } else if (last_shared_send != 0 && time_since_last_send < mc_send_interval) {
+      return true;
+    }
+    last_shared_send = now;
+  }
+
+  /* Config Files Message */
+  memset(message, 0, 61440);
+  constructSharedFilePacket(message, 61440);
+  sendOutgoingMessage(message, strlen(message));
+
+  /* Alarm Message */
+  memset(message, 0, 61440);
+  resolved_addr.s_addr = our_ip;
+  ink_strlcpy(addr, inet_ntoa(resolved_addr), sizeof(addr));
+  lmgmt->alarm_keeper->constructAlarmMessage(addr, message, 61440);
+  sendOutgoingMessage(message, strlen(message));
+
+  /*
+   * Send alarms and file config information always, if we are not running
+   * a proxy we should not send a stat packet(no stats to report since no
+   * proxy is running). The stat packet is used to hearbeat that the node
+   * is alive, since this packet is not sent the master peer will not assign
+   * us ip addresses and if we are the master peer someone will take over our
+   * duties.
+   */
+  if (!send_proxy_heart_beat) {
+    return true;
+  }
+
+  /* Stat Message */
+  memset(message, 0, 61440);
+  constructSharedStatPacket(message, 61440);
+  sendOutgoingMessage(message, strlen(message));
+
+  /* VMap Message */
+  memset(message, 0, 61440);
+  lmgmt->virt_map->lt_constructVMapMessage(addr, message, 61440);
+  sendOutgoingMessage(message, strlen(message));
+
+  return true;
+}                               /* End ClusterCom::sendSharedData */
+
+
+/*
+ * constructSharedGenericPacket(...)
+ *   A generic packet builder that can construct config or stat
+ * broadcast packets. Basically the smarts to read the records values.
+ */
+void
+ClusterCom::constructSharedGenericPacket(char *message, int max, RecT packet_type)
+{
+  int running_sum = 0;          /* Make sure we never go over max */
+  char tmp[1024];
+  struct in_addr resolved_addr;
+
+  /* Insert the standard packet header */
+  resolved_addr.s_addr = our_ip;
+  running_sum = constructSharedPacketHeader(message, inet_ntoa(resolved_addr), max);
+
+  if (packet_type == RECT_NODE) {
+    ink_strlcpy(&message[running_sum], "type: stat\n", (max - running_sum));
+    running_sum += strlen("type: stat\n");
+    ink_release_assert(running_sum < max);
+  } else {
+    mgmt_elog(0, "[ClusterCom::constructSharedGenericPacket] Illegal type seen '%d'\n", packet_type);
+    return;
+  }
+
+  if (sys_name[0]) {
+    snprintf(tmp, sizeof(tmp), "os: %s\n", sys_name);
+  } else {
+    snprintf(tmp, sizeof(tmp), "os: unknown\n");
+  }
+  ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+  running_sum += strlen(tmp);
+  ink_release_assert(running_sum < max);
+
+
+  if (sys_release[0]) {
+    snprintf(tmp, sizeof(tmp), "rel: %s\n", sys_release);
+  } else {
+    snprintf(tmp, sizeof(tmp), "rel: unknown\n");
+  }
+  ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+  running_sum += strlen(tmp);
+  ink_release_assert(running_sum < max);
+
+  snprintf(tmp, sizeof(tmp), "hostname: %s\n", our_host);
+  ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+  running_sum += strlen(tmp);
+  ink_release_assert(running_sum < max);
+
+  snprintf(tmp, sizeof(tmp), "port: %d\n", cluster_port);
+  ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+  running_sum += strlen(tmp);
+  ink_release_assert(running_sum < max);
+
+  snprintf(tmp, sizeof(tmp), "ccomport: %d\n", reliable_server_port);
+  ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+  running_sum += strlen(tmp);
+  ink_release_assert(running_sum < max);
+
+  /* Current time stamp, for xntp like synching */
+  if (time(NULL) > 0) {
+    snprintf(tmp, sizeof(tmp), "time: %" PRId64 "\n", (int64_t)time(NULL));
+    ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+    running_sum += strlen(tmp);
+  } else {
+    mgmt_elog(stderr, errno, "[ClusterCom::constructSharedPacket] time failed\n");
+  }
+  ink_release_assert(running_sum < max);
+
+  int cnt = 0;
+  for (int j = 0; j < g_num_records; j++) {
+    RecRecord *rec = &(g_records[j]);
+
+    if (rec->rec_type == RECT_NODE) {
+      switch (rec->data_type) {
+      case RECD_COUNTER:
+        snprintf(tmp, sizeof(tmp), "%d:%d: %" PRId64 "\n", cnt, rec->data_type, rec->data.rec_counter);
+        ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+        running_sum += strlen(tmp);
+        break;
+      case RECD_INT:
+        snprintf(tmp, sizeof(tmp), "%d:%d: %" PRId64 "\n", cnt, rec->data_type, rec->data.rec_int);
+        ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+        running_sum += strlen(tmp);
+        break;
+      case RECD_FLOAT:
+        snprintf(tmp, sizeof(tmp), "%d:%d: %f\n", cnt, rec->data_type, rec->data.rec_float);
+        ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+        running_sum += strlen(tmp);
+        break;
+      case RECD_STRING:
+        if (rec->data.rec_string) {
+          snprintf(tmp, sizeof(tmp), "%d:%d: %s\n", cnt, rec->data_type, rec->data.rec_string);
+        } else {
+          snprintf(tmp, sizeof(tmp), "%d:%d: NULL\n", cnt, rec->data_type);
+        }
+        ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+        running_sum += strlen(tmp);
+        break;
+      default:
+        break;
+      }
+      ++cnt;
+    }
+    ink_release_assert(running_sum < max);
+  }
+
+  return;
+}                               /* End ClusterCom::constructSharedGenericPacket */
+
+
+void
+ClusterCom::constructSharedStatPacket(char *message, int max)
+{
+  constructSharedGenericPacket(message, max, RECT_NODE);
+  return;
+}                               /* End ClusterCom::constructSharedStatPacket */
+
+
+/* static int constructSharedPacketHeader(...)
+ *   Each multicast packet needs to have the following
+ *   header info.  Ip, Cluster Name, TS Version.  This function
+ *   Inserts that information.  Returns the nubmer of bytes inserted
+ */
+int
+ClusterCom::constructSharedPacketHeader(char *message, char *ip, int max)
+{
+  int running_sum = 0;
+
+  /* Insert the IP Address of this node */
+  /* Insert the name of this cluster for cluster-identification of mc packets */
+  /* Insert the Traffic Server verison */
+  snprintf(message, max, "ip: %s\ncluster: %s\ntsver: %s\n", ip, lmgmt->proxy_name, appVersionInfo.VersionStr);
+  running_sum = strlen(message);
+  ink_release_assert(running_sum < max);
+
+  return running_sum;
+}                               /* End ClusterCom::constructSharedPacketHeader */
+
+
+/*
+ * constructSharedFilePacket(...)
+ *   Foreach of the config files we are holding build a packet that
+ * can be used to share the current version and time stamp of the
+ * files, so others can tell if ours our newer.
+ */
+void
+ClusterCom::constructSharedFilePacket(char *message, int max)
+{
+  int running_sum = 0;
+  char tmp[1024], *files, *line, *last;
+  struct in_addr resolved_addr;
+  textBuffer *buff;
+
+  /* Insert the standard packet header */
+  resolved_addr.s_addr = our_ip;
+  running_sum = constructSharedPacketHeader(message, inet_ntoa(resolved_addr), max);
+
+  ink_strlcpy(&message[running_sum], "type: files\n", (max - running_sum));
+  running_sum += strlen("type: files\n");
+  ink_release_assert(running_sum < max);
+
+  buff = configFiles->filesManaged();
+  files = buff->bufPtr();
+  line = strtok_r(files, "\n", &last);
+  if (line == NULL) {
+    delete buff;
+    return;
+  }
+
+  /* Loop over the known files building the packet */
+  do {
+    Rollback *rb;
+
+    /* Some files are local only */
+    if (strcmp(line, "storage.config") == 0) {
+      continue;
+    }
+
+    if (configFiles->getRollbackObj(line, &rb)) {
+      version_t ver = rb->getCurrentVersion();
+
+      // Workaround INKqa08567: Calling versionTimeStamp here causes
+      // traffic_manager to periodically switch to be a root user (as
+      // it needs to stat() some snmp related configuration files).
+      // This caused a race-condition to occur if some configuration
+      // were being written to disk (files would be written as owned
+      // by root instead of being owned by inktomi... thus causing
+      // general permissions badness everywhere).  Because the
+      // timestamp isn't actually used by the peer cluster nodes to
+      // determine which config files are newer, the workaround is to
+      // remove the unnecessary call to versionTimeStamp().
+
+      //time_t mod = rb->versionTimeStamp(ver);
+      time_t mod = 0;
+
+      snprintf(tmp, sizeof(tmp), "%s %d %" PRId64 "\n", line, ver, (int64_t)mod);
+      ink_strlcpy(&message[running_sum], tmp, (max - running_sum));
+      running_sum += strlen(tmp);
+      ink_release_assert(running_sum < max);
+    } else {
+      mgmt_elog(0, "[ClusterCom::constructSharedFilePacket] Invalid base name? '%s'\n", line);
+    }
+  } while ((line = strtok_r(NULL, "\n", &last)));
+
+  delete buff;
+  return;
+}                               /* End ClusterCom::constructSharedFilePacket */
+
+
+/*
+ * estabilishChannels(...)
+ *   Sets up the multi-cast and reliable tcp channels for cluster
+ * communication. But only if clustering is enabled in some shape.
+ */
+void
+ClusterCom::establishChannels()
+{
+  int one = 1;
+  struct sockaddr_in serv_addr;
+
+  if (cluster_type != NO_CLUSTER) {
+    establishBroadcastChannel();
+    establishReceiveChannel();
+
+    if (reliable_server_port > 0) {
+      /* Setup reliable connection, for large config changes */
+      if ((reliable_server_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+        mgmt_fatal(errno, "[ClusterCom::establishChannels] Unable to create socket\n");
+      }
+      if (fcntl(reliable_server_fd, F_SETFD, 1) < 0) {
+        mgmt_fatal(errno, "[ClusterCom::establishChannels] Unable to set close-on-exec.\n");
+      }
+
+      if (setsockopt(reliable_server_fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(int)) < 0) {
+        mgmt_fatal(errno, "[ClusterCom::establishChannels] Unable to set socket options.\n");
+      }
+
+      memset(&serv_addr, 0, sizeof(serv_addr));
+      serv_addr.sin_family = AF_INET;
+      serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+      serv_addr.sin_port = htons(reliable_server_port);
+
+      if ((bind(reliable_server_fd, (struct sockaddr *) &serv_addr, sizeof(serv_addr))) < 0) {
+        mgmt_fatal(errno, "[ClusterCom::establishChannels] Unable to bind socket (port:%d)\n", reliable_server_port);
+      }
+
+      if ((listen(reliable_server_fd, 10)) < 0) {
+        mgmt_fatal(errno, "[ClusterCom::establishChannels] Unable to listen on socket\n");
+      }
+    }
+  }
+
+  Debug("ccom", "[ClusterCom::establishChannels] Channels setup\n");
+  init = true;
+  return;
+}
+
+
+/*
+ * establishBroadcastChannel()
+ *   Setup our multicast channel for broadcasting.
+ */
+void
+ClusterCom::establishBroadcastChannel(void)
+{
+  if ((broadcast_fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+    mgmt_fatal(errno, "[ClusterCom::establishBroadcastChannel] Unable to open socket.\n");
+  }
+
+  if (fcntl(broadcast_fd, F_SETFD, 1) < 0) {
+    mgmt_fatal(errno, "[ClusterCom::establishBroadcastChannel] Unable to set close-on-exec.\n");
+  }
+
+  int one = 1;
+  if (setsockopt(broadcast_fd, SOL_SOCKET, SO_REUSEADDR, (const char *) &one, sizeof(one)) < 0) {
+    mgmt_fatal(errno, "[ClusterCom::establishBroadcastChannel] Unable to set socket options.\n");
+  }
+
+  memset(&broadcast_addr, 0, sizeof(broadcast_addr));
+  broadcast_addr.sin_family = AF_INET;
+  broadcast_addr.sin_addr.s_addr = inet_addr(mc_group);
+  broadcast_addr.sin_port = htons(mc_port);
+
+  u_char ttl = mc_ttl, loop = 0;
+
+  /* Set ttl(max forwards), 1 should be default(same subnetwork). */
+  if (setsockopt(broadcast_fd, IPPROTO_IP, IP_MULTICAST_TTL, (const char *) &ttl, sizeof(ttl)) < 0) {
+    mgmt_fatal(errno, "[ClusterCom::establishBroadcastChannel] Unable to setsocketopt, ttl\n");
+  }
+
+  /* Disable broadcast loopback, that is broadcasting to self */
+  if (setsockopt(broadcast_fd, IPPROTO_IP, IP_MULTICAST_LOOP, (const char *) &loop, sizeof(loop)) < 0) {
+    mgmt_fatal(errno, "[ClusterCom::establishBroadcastChannel] Unable to disable loopback\n");
+  }
+
+  return;
+}                               /* End ClusterCom::establishBroadcastChannel */
+
+
+/*
+ * establishReceiveChannel()
+ *   Setup our multicast channel for receiving incoming broadcasts
+ * from other peers.
+ */
+
+int
+ClusterCom::establishReceiveChannel(int fatal_on_error)
+{
+  if ((receive_fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+    if (!fatal_on_error) {
+      Debug("ccom", "establishReceiveChannel: Unable to open socket");
+      return 1;
+    }
+    mgmt_fatal(errno, "[ClusterCom::establishReceiveChannel] Unable to open socket\n");
+  }
+
+  if (fcntl(receive_fd, F_SETFD, 1) < 0) {
+    if (!fatal_on_error) {
+      close(receive_fd);
+      receive_fd = -1;
+      Debug("ccom", "establishReceiveChannel: Unable to set close-on-exec");
+      return 1;
+    }
+    mgmt_fatal(errno, "[ClusterCom::establishReceiveChannel] Unable to set close-on-exec.\n");
+  }
+
+  int one = 1;
+  if (setsockopt(receive_fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(int)) < 0) {
+    if (!fatal_on_error) {
+      close(receive_fd);
+      receive_fd = -1;
+      Debug("ccom", "establishReceiveChannel: Unable to set socket to reuse addr");
+      return 1;
+    }
+    mgmt_fatal(errno, "[ClusterCom::establishReceiveChannel] Unable to set socket to reuse addr.\n");
+  }
+
+  memset(&receive_addr, 0, sizeof(receive_addr));
+  receive_addr.sin_family = AF_INET;
+  receive_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+  receive_addr.sin_port = htons(mc_port);
+
+  if (bind(receive_fd, (struct sockaddr *) &receive_addr, sizeof(receive_addr)) < 0) {
+    if (!fatal_on_error) {
+      close(receive_fd);
+      receive_fd = -1;
+      Debug("ccom", "establishReceiveChannel: Unable to bind to socket, port %d", mc_port);
+      return 1;
+    }
+    mgmt_fatal(errno, "[ClusterCom::establishReceiveChannel] Unable to bind to socket, port %d\n", mc_port);
+  }
+  /* Add ourselves to the group */
+  struct ip_mreq mc_request;
+  mc_request.imr_multiaddr.s_addr = inet_addr(mc_group);
+  mc_request.imr_interface.s_addr = htonl(INADDR_ANY);
+  if (setsockopt(receive_fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const char *) &mc_request, sizeof(mc_request)) < 0) {
+    if (!fatal_on_error) {
+      close(receive_fd);
+      receive_fd = -1;
+      Debug("ccom", "establishReceiveChannel: Can't add ourselves to multicast group %s", mc_group);
+
+      return 1;
+    }
+    mgmt_fatal(errno, "[ClusterCom::establishReceiveChannel] Can't add ourselves to multicast group %s\n", mc_group);
+  }
+
+  return 0;
+}                               /* End ClusterCom::establishReceiveChannel */
+
+
+/*
+ * sendOutgoingMessage
+ *   Function basically writes a message to the broadcast_fd, it is blocking,
+ * but since the drainer thread is constantly draining the network for all
+ * local managers it should not block for very long.
+ */
+bool
+ClusterCom::sendOutgoingMessage(char *buf, int len)
+{
+  if (mgmt_sendto(broadcast_fd, buf, len, 0, (struct sockaddr *) &broadcast_addr, sizeof(broadcast_addr)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendOutgoingMessage] Message send failed\n");
+    return false;
+  }
+  return true;
+}                               /* End ClusterCom::sendOutgoingMessage */
+
+
+bool
+ClusterCom::sendClusterMessage(int msg_type, const char *args)
+{
+  bool ret = true, tmp_ret;
+  char msg[1124] = {0};
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  switch (msg_type) {
+  case CLUSTER_MSG_SHUTDOWN_MANAGER:
+    ink_strlcpy(msg, "cmd: shutdown_manager", sizeof(msg));
+    break;
+  case CLUSTER_MSG_SHUTDOWN_PROCESS:
+    ink_strlcpy(msg, "cmd: shutdown_process", sizeof(msg));
+    break;
+  case CLUSTER_MSG_RESTART_PROCESS:
+    ink_strlcpy(msg, "cmd: restart_process", sizeof(msg));
+    break;
+  case CLUSTER_MSG_BOUNCE_PROCESS:
+    ink_strlcpy(msg, "cmd: bounce_process", sizeof(msg));
+    break;
+  case CLUSTER_MSG_CLEAR_STATS:
+    if (args) {
+      snprintf(msg, sizeof(msg), "cmd: clear_stats %1023s\n", args);
+    } else {
+      ink_strlcpy(msg, "cmd: clear_stats", sizeof(msg));
+    }
+    break;
+  default:
+    mgmt_log(stderr, "[ClusterCom::sendClusterMessage] Invalid message type '%d'\n", msg_type);
+    return false;
+  }
+
+  ink_mutex_acquire(&(mutex));  /* Grab cluster lock */
+  for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+    ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+
+    tmp_ret = rl_sendReliableMessage(tmp->inet_address, msg, strlen(msg));
+    if (tmp->num_virt_addrs != -1) {
+      /* Only change return val if he is not dead, if dead manager could be up. */
+      ret = tmp_ret;
+    }
+  }
+  ink_mutex_release(&(mutex));
+
+  switch (msg_type) {
+  case CLUSTER_MSG_SHUTDOWN_MANAGER:
+    lmgmt->mgmtShutdown();
+    break;
+  case CLUSTER_MSG_SHUTDOWN_PROCESS:
+    lmgmt->processShutdown();
+    break;
+  case CLUSTER_MSG_RESTART_PROCESS:
+    lmgmt->processRestart();
+    break;
+  case CLUSTER_MSG_BOUNCE_PROCESS:
+    lmgmt->processBounce();
+    break;
+  case CLUSTER_MSG_CLEAR_STATS:
+    lmgmt->clearStats(args);
+    break;
+  }
+
+  return ret;
+}                               /* End ClusterCom::sendClusterMessage */
+
+
+bool
+ClusterCom::sendReliableMessage(unsigned long addr, char *buf, int len)
+{
+  bool ret = false;
+  ink_mutex_acquire(&mutex);
+  ret = rl_sendReliableMessage(addr, buf, len);
+  ink_mutex_release(&mutex);
+  return ret;
+}                               /* End ClusterCom::sendReliableMessage */
+
+/*
+ * rl_sendReliableMessage(...)
+ *   Used to send a string across the reliable fd.
+ */
+bool
+ClusterCom::rl_sendReliableMessage(unsigned long addr, const char *buf, int len)
+{
+  int fd, cport;
+  char string_addr[80];
+  struct sockaddr_in serv_addr;
+  struct in_addr address;
+  InkHashTableValue hash_value;
+
+  address.s_addr = addr;
+
+  ink_strlcpy(string_addr, inet_ntoa(address), sizeof(string_addr));
+  if (ink_hash_table_lookup(peers, string_addr, &hash_value) == 0) {
+    return false;
+  }
+  cport = ((ClusterPeerInfo *) hash_value)->ccom_port;
+
+  memset(&serv_addr, 0, sizeof(serv_addr));
+  serv_addr.sin_family = AF_INET;
+  serv_addr.sin_addr.s_addr = addr;
+  serv_addr.sin_port = htons(cport);
+
+
+  if ((fd = mgmt_socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::rl_sendReliableMessage] Unable to create socket\n");
+    return false;
+  }
+  if (fcntl(fd, F_SETFD, 1) < 0) {
+    mgmt_log("[ClusterCom::rl_sendReliableMessage] Unable to set close-on-exec.\n");
+    close(fd);
+    return false;
+  }
+
+  if (connect(fd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::rl_sendReliableMessage] Unable to connect to peer\n");
+    close_socket(fd);
+    return false;
+  }
+
+  if (mgmt_writeline(fd, buf, len) != 0) {
+    mgmt_elog(stderr, errno, "[ClusterCom::rl_sendReliableMessage] Write failed\n");
+    close_socket(fd);
+    return false;
+  }
+  close_socket(fd);
+  return true;
+}                               /* End ClusterCom::rl_sendReliableMessage */
+
+
+/*
+ * sendReliableMessage(...)
+ *   Used to send a string across the reliable fd.
+ */
+bool
+ClusterCom::sendReliableMessage(unsigned long addr, char *buf, int len, char *reply, int len2, bool take_lock)
+{
+  int fd, cport;
+  char string_addr[80];
+  struct sockaddr_in serv_addr;
+  struct in_addr address;
+  InkHashTableValue hash_value;
+
+  address.s_addr = addr;
+  if (take_lock) {
+    ink_mutex_acquire(&mutex);
+  }
+  ink_strlcpy(string_addr, inet_ntoa(address), sizeof(string_addr));
+  if (ink_hash_table_lookup(peers, string_addr, &hash_value) == 0) {
+    if (take_lock) {
+      ink_mutex_release(&mutex);
+    }
+    return false;
+  }
+  cport = ((ClusterPeerInfo *) hash_value)->ccom_port;
+
+  memset(&serv_addr, 0, sizeof(serv_addr));
+  serv_addr.sin_family = AF_INET;
+  serv_addr.sin_addr.s_addr = addr;
+  serv_addr.sin_port = htons(cport);
+
+  if ((fd = mgmt_socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessage] Unable to create socket\n");
+    if (take_lock) {
+      ink_mutex_release(&mutex);
+    }
+    return false;
+  }
+  if (fcntl(fd, F_SETFD, 1) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessage] Unable to set close-on-exec.\n");
+    if (take_lock) {
+      ink_mutex_release(&mutex);
+    }
+    close(fd);
+    return false;
+  }
+
+  if (connect(fd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessage] Unable to connect to peer\n");
+    if (take_lock) {
+      ink_mutex_release(&mutex);
+    }
+    close_socket(fd);
+    return false;
+  }
+
+  if (mgmt_writeline(fd, buf, len) != 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessage] Write failed\n");
+    if (take_lock) {
+      ink_mutex_release(&mutex);
+    }
+    close_socket(fd);
+    return false;
+  }
+
+  if (mgmt_readline(fd, reply, len2) == -1) {
+    mgmt_elog(stderr, errno, "[ClusterCom::sendReliableMessage] Read failed\n");
+    perror("ClusterCom::sendReliableMessage");
+    reply[0] = '\0';
+    if (take_lock) {
+      ink_mutex_release(&mutex);
+    }
+    close_socket(fd);
+    return false;
+  }
+
+  close_socket(fd);
+  if (take_lock) {
+    ink_mutex_release(&mutex);
+  }
+  return true;
+}                               /* End ClusterCom::sendReliableMessage */
+
+
+/*
+ * sendReliableMessage(...)
+ *   Used to send a string across the reliable fd.
+ */
+bool
+ClusterCom::sendReliableMessageReadTillClose(unsigned long addr, char *buf, int len, textBuffer * reply)
+{
+  int fd, cport, res;
+  char string_addr[80], tmp_reply[1024];
+  struct sockaddr_in serv_addr;
+  struct in_addr address;
+  InkHashTableValue hash_value;
+
+  address.s_addr = addr;
+  ink_mutex_acquire(&mutex);
+  ink_strlcpy(string_addr, inet_ntoa(address), sizeof(string_addr));
+  if (ink_hash_table_lookup(peers, string_addr, &hash_value) == 0) {
+    ink_mutex_release(&mutex);
+    return false;
+  }
+  cport = ((ClusterPeerInfo *) hash_value)->ccom_port;
+
+  memset(&serv_addr, 0, sizeof(serv_addr));
+  serv_addr.sin_family = AF_INET;
+  serv_addr.sin_addr.s_addr = addr;
+  serv_addr.sin_port = htons(cport);
+
+  if ((fd = mgmt_socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessageReadTillClose] Unable create sock\n");
+    ink_mutex_release(&mutex);
+    return false;
+  }
+  if (fcntl(fd, F_SETFD, 1) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessageReadTillClose] Unable to set close-on-exec.\n");
+    ink_mutex_release(&mutex);
+    close(fd);
+    return false;
+  }
+
+  if (connect(fd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessageReadTillClose] Unable to connect\n");
+    ink_mutex_release(&mutex);
+    close_socket(fd);
+    return false;
+  }
+
+  if (mgmt_writeline(fd, buf, len) != 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessageReadTillClose] Write failed\n");
+    ink_mutex_release(&mutex);
+    close_socket(fd);
+    return false;
+  } else {
+    Debug("ccom", "[ClusterCom::sendReliableMessageREadTillClose] Sent '%s' len: %d on fd: %d\n", buf, len, fd);
+  }
+
+  memset(tmp_reply, 0, 1024);
+  while ((res = read_socket(fd, tmp_reply, 1022) > 0)) {
+    if (tmp_reply[0] == (char)EOF) {
+      break;
+    }
+    reply->copyFrom(tmp_reply, strlen(tmp_reply));
+    memset(tmp_reply, 0, 1024);
+  }
+
+  if (res < 0) {
+    mgmt_elog(errno, "[ClusterCom::sendReliableMessageReadTillClose] Read failed\n");
+    perror("ClusterCom::sendReliableMessageReadTillClose");
+    ink_mutex_release(&mutex);
+    close_socket(fd);
+    return false;
+  }
+
+  close_socket(fd);
+  ink_mutex_release(&mutex);
+  return true;
+}                               /* End ClusterCom::sendReliableMessageReadTillClose */
+
+
+/*
+ * receiveIncomingMessage
+ *   This function reads from the incoming channel. It is blocking,
+ * this is ok since the channel is drained by an independent thread.
+ */
+int
+ClusterCom::receiveIncomingMessage(char *buf, int max)
+{
+  int nbytes = 0, addr_len = sizeof(receive_addr);
+
+  if ((nbytes = recvfrom(receive_fd, buf, max, 0, (struct sockaddr *) &receive_addr, (socklen_t *) & addr_len)) < 0) {
+    mgmt_elog(stderr, errno, "[ClusterCom::receiveIncomingMessage] Receive failed\n");
+  }
+  return nbytes;
+}                               /* End ClusterCom::processIncomingMessages */
+
+
+/*
+ * isMaster()
+ *   Function checks known hosts and decides whether this local manager is
+ * the current cluster master.
+ */
+bool
+ClusterCom::isMaster()
+{
+  bool init_flag = false;
+  unsigned long min = 0;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+    ClusterPeerInfo *pinfo = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+
+    if (!pinfo || pinfo->num_virt_addrs == -1) {
+      continue;
+    } else if (!init_flag) {
+      init_flag = true;
+      min = pinfo->inet_address;
+    } else if (min > pinfo->inet_address) {
+      min = pinfo->inet_address;
+    }
+  }
+
+  if (our_ip == min || !init_flag || our_ip < min) {
+    return true;
+  }
+  return false;
+}                               /* End ClusterCom::isMaster */
+
+
+/*
+ * lowestPeer()
+ *   Function finds the peer with the lowest number of current virtual
+ * interfaces. It returns the ip and sets num to the no. of connections.
+ */
+unsigned long
+ClusterCom::lowestPeer(int *no)
+{
+  bool flag = true;
+  int naddrs = -1;
+  unsigned long min_ip = 0;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+    ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+    if (tmp->num_virt_addrs == -1) {
+      continue;
+    } else if (flag) {
+      flag = false;
+      min_ip = tmp->inet_address;
+      naddrs = tmp->num_virt_addrs;
+    } else if (naddrs > tmp->num_virt_addrs) {
+      min_ip = tmp->inet_address;
+      naddrs = tmp->num_virt_addrs;
+    } else if (naddrs == tmp->num_virt_addrs && min_ip > tmp->inet_address) {
+      min_ip = tmp->inet_address;
+      naddrs = tmp->num_virt_addrs;
+    }
+  }
+  *no = naddrs;
+  return min_ip;
+}                               /* End ClusterCom::lowestPeer */
+
+
+void
+ClusterCom::logClusterMismatch(const char *ip, ClusterMismatch type, char *data)
+{
+  void *value;
+  ClusterMismatch stored_type;
+
+  // Check to see if we have have already logged a message of time type
+  //   for this node
+  if (ink_hash_table_lookup(mismatchLog, ip, &value)) {
+    stored_type = (ClusterMismatch) (long) value;
+
+    if (type == stored_type) {
+      return;
+    } else {
+      // The message logged is of a different type so delete the entry
+      ink_hash_table_delete(mismatchLog, ip);
+    }
+  }
+  // Log the message and store the that we've logged it in
+  //   our hash table
+  switch (type) {
+  case TS_NAME_MISMATCH:
+    mgmt_log(stderr, "[ClusterCom::logClusterMismatch] Found node with ip %s.  Ignoring"
+             " since it is part of cluster %s\n", ip, data);
+    break;
+  case TS_VER_MISMATCH:
+    mgmt_log(stderr, "[ClusterCom::logClusterMismatch] Found node with ip %s.  Ignoring"
+             " since it is version %s (our version: %s)\n", ip, data, appVersionInfo.VersionStr);
+    break;
+  default:
+    ink_assert(0);
+  }
+
+  ink_hash_table_insert(mismatchLog, ip, (void *) type);
+}
+
+
+/*
+ * highestPeer()
+ *   Function finds the peer with the highest number of current virtual
+ * interfaces. It returns the ip and sets num to the no. of connections.
+ */
+unsigned long
+ClusterCom::highestPeer(int *no)
+{
+  bool flag = true;
+  int naddrs = -1;
+  unsigned long max_ip = 0;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(peers, &iterator_state)) {
+
+    ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(peers, entry);
+    if (tmp->num_virt_addrs == -1) {
+      continue;
+    } else if (flag) {
+      flag = false;
+      max_ip = tmp->inet_address;
+      naddrs = tmp->num_virt_addrs;
+    } else if (naddrs < tmp->num_virt_addrs) {
+      max_ip = tmp->inet_address;
+      naddrs = tmp->num_virt_addrs;
+    } else if (naddrs == tmp->num_virt_addrs && max_ip > tmp->inet_address) {
+      max_ip = tmp->inet_address;
+      naddrs = tmp->num_virt_addrs;
+    }
+  }
+  *no = naddrs;
+
+  return max_ip;
+}                               /* End ClusterCom::highestPeer */
+
+
+/*
+ * checkBackDoor(...)
+ *   Function checks for "backdoor" commands on the cluster port.
+ */
+bool
+checkBackDoor(int req_fd, char *message)
+{
+  char reply[4096];
+
+  if (strstr(message, "show_map")) {
+    const char *tmp_msg;
+    bool map_empty = true;
+    InkHashTableEntry *entry;
+    InkHashTableIteratorState iterator_state;
+
+    ink_mutex_acquire(&(lmgmt->ccom->mutex));
+    tmp_msg = "\nLocal Map (virtual-ip):\n-----------------------\n";
+    mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+    for (entry = ink_hash_table_iterator_first(lmgmt->virt_map->our_map,
+                                               &iterator_state);
+         entry != NULL; entry = ink_hash_table_iterator_next(lmgmt->virt_map->our_map, &iterator_state)) {
+      char *tmp = (char *) ink_hash_table_entry_key(lmgmt->virt_map->our_map, entry);
+      mgmt_writeline(req_fd, tmp, strlen(tmp));
+      map_empty = false;
+    }
+
+    if (map_empty) {
+      tmp_msg = "(No interfaces mapped)";
+      mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+    }
+
+    map_empty = true;
+    tmp_msg = "\nPeer Map (virtual-ip real-ip):\n------------------------------\n";
+    mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+    for (entry = ink_hash_table_iterator_first(lmgmt->virt_map->ext_map,
+                                               &iterator_state);
+         entry != NULL; entry = ink_hash_table_iterator_next(lmgmt->virt_map->ext_map, &iterator_state)) {
+      char *tmp = (char *) ink_hash_table_entry_key(lmgmt->virt_map->ext_map, entry);
+      mgmt_writeline(req_fd, tmp, strlen(tmp));
+      map_empty = false;
+    }
+
+    if (map_empty) {
+      tmp_msg = "(No interfaces mapped)\n";
+      mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+    } else {
+      tmp_msg = "\n\n";
+      mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+    }
+    ink_mutex_release(&(lmgmt->ccom->mutex));
+    return true;
+  } else if (strstr(message, "read ")) {
+    char variable[1024];
+
+    // coverity[secure_coding]
+    if (sscanf(message, "read %s\n", variable) != 1) {
+      mgmt_elog(0, "[ClusterCom::CBD] Invalid message-line(%d) '%s'\n", __LINE__, message);
+      return false;
+    }
+
+    RecDataT stype = RECD_NULL;
+    if (RecGetRecordDataType(variable, &stype) == REC_ERR_OKAY) {
+      bool found = false;
+      int rep_len = 0;
+
+      switch (stype) {
+      case RECD_COUNTER:
+      case RECD_INT:
+        {
+          int64_t val = (stype == RECD_COUNTER ? REC_readCounter(variable, &found) : REC_readInteger(variable, &found));
+          if (found) {
+            rep_len = snprintf(reply, sizeof(reply), "\nRecord '%s' Val: '%" PRId64 "'\n", variable, val);
+          }
+          break;
+        }
+      case RECD_FLOAT:
+        {
+          RecFloat val = REC_readFloat(variable, &found);
+          if (found) {
+            rep_len = snprintf(reply, sizeof(reply), "\nRecord '%s' Val: '%f'\n", variable, val);
+          }
+          break;
+        }
+      case RECD_STRING:
+        {
+          char *val = REC_readString(variable, &found);
+          if (found) {
+            rep_len = snprintf(reply, sizeof(reply), "\nRecord '%s' Val: '%s'\n", variable, val);
+            ats_free(val);
+          }
+          break;
+        }
+      default:
+        break;
+      }
+      if (found) {
+        mgmt_writeline(req_fd, reply, rep_len);
+      } else {
+        mgmt_elog(0, "[checkBackDoor] record not found '%s'\n", variable);
+      }
+    } else {
+      mgmt_elog(0, "[checkBackDoor] Unknown variable requested '%s'\n", variable);
+    }
+    return true;
+  } else if (strstr(message, "write ")) {
+    char variable[1024], value[1024];
+
+    if (sscanf(message, "write %s %s", variable, value) != 2) {
+      mgmt_elog(0, "[ClusterCom::CBD] Invalid message-line(%d) '%s'\n", __LINE__, message);
+      return false;
+    }
+    // TODO: I think this is correct, it used to do lmgmt->record_data-> ...
+    if (RecSetRecordConvert(variable, value, true, false) == REC_ERR_OKAY) {
+      ink_strlcpy(reply, "\nRecord Updated\n\n", sizeof(reply));
+      mgmt_writeline(req_fd, reply, strlen(reply));
+    } else {
+      mgmt_elog(0, "[checkBackDoor] Assignment to unknown variable requested '%s'\n", variable);
+    }
+    return true;
+  } else if (strstr(message, "peers")) {
+    InkHashTableEntry *entry;
+    InkHashTableIteratorState iterator_state;
+
+    ink_mutex_acquire(&(lmgmt->ccom->mutex));
+
+    for (entry = ink_hash_table_iterator_first(lmgmt->ccom->peers, &iterator_state);
+         entry != NULL; entry = ink_hash_table_iterator_next(lmgmt->ccom->peers, &iterator_state)) {
+      const char *tmp_msg;
+      char ip_addr[80];
+      struct in_addr addr;
+
+      ClusterPeerInfo *tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(lmgmt->ccom->peers, entry);
+
+      tmp_msg = "---------------------------";
+      mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+
+      addr.s_addr = tmp->inet_address;
+      ink_strlcpy(ip_addr, inet_ntoa(addr), sizeof(ip_addr));
+      snprintf(reply, sizeof(reply), "Peer: %s   naddrs: %d", ip_addr, tmp->num_virt_addrs);
+      mgmt_writeline(req_fd, reply, strlen(reply));
+
+      snprintf(reply, sizeof(reply), "Cluster Port(proxy): %d  RS Port(mgmt): %d", tmp->port, tmp->ccom_port);
+      mgmt_writeline(req_fd, reply, strlen(reply));
+
+      snprintf(reply, sizeof(reply),
+               "Idle-Our-WC: %" PRId64 "   Peer-WC-Last-Time: %ld  Delta: %ld Mgmt-Idle: %" PRId64 " M-Alive: %d",
+               (int64_t)tmp->idle_ticks, tmp->last_time_recorded, tmp->delta, (int64_t)tmp->manager_idle_ticks, tmp->manager_alive);
+      mgmt_writeline(req_fd, reply, strlen(reply));
+
+
+      tmp_msg = "---------------------------\n";
+      mgmt_writeline(req_fd, tmp_msg, strlen(tmp_msg));
+
+    }
+    ink_mutex_release(&(lmgmt->ccom->mutex));
+    return true;
+  } else if (strstr(message, "dump: lm")) {
+
+    ink_strlcpy(reply, "---------------------------", sizeof(reply));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+    ink_strlcpy(reply, "Local Manager:\n", sizeof(reply));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    snprintf(reply, sizeof(reply), "\tproxy_running: %s", (lmgmt->proxy_running ? "true" : "false"));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    snprintf(reply, sizeof(reply), "\tproxy_started_at: %" PRId64 "", (int64_t)lmgmt->proxy_started_at);
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    snprintf(reply, sizeof(reply), "\trun_proxy: %s", (lmgmt->run_proxy ? "true" : "false"));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    snprintf(reply, sizeof(reply), "\tproxy_launch_oustanding: %s",
+             (lmgmt->proxy_launch_outstanding ? "true" : "false"));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    snprintf(reply, sizeof(reply), "\tmgmt_shutdown_outstanding: %s\n",
+             (lmgmt->mgmt_shutdown_outstanding ? "true" : "false"));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    // XXX: Again multiple code caused by misssing PID_T_FMT
+// TODO: Was #if defined(solaris) && (!defined(_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64)
+#if defined(solaris)
+    snprintf(reply, sizeof(reply), "\twatched_process_fd: %d  watched_process_pid: %ld\n",
+             lmgmt->watched_process_fd, (long int)lmgmt->watched_process_pid);
+#else
+    snprintf(reply, sizeof(reply), "\twatched_process_fd: %d  watched_process_pid: %d\n",
+             lmgmt->watched_process_fd, lmgmt->watched_process_pid);
+#endif
+    mgmt_writeline(req_fd, reply, strlen(reply));
+
+    ink_strlcpy(reply, "---------------------------\n", sizeof(reply));
+    mgmt_writeline(req_fd, reply, strlen(reply));
+    return true;
+  } else if (strstr(message, "cluster: ")) {
+    int msg_type;
+    char *args = NULL;
+
+    if (strstr(message, "cluster: shutdown_manager")) {
+      msg_type = CLUSTER_MSG_SHUTDOWN_MANAGER;
+    } else if (strstr(message, "cluster: shutdown_process")) {
+      msg_type = CLUSTER_MSG_SHUTDOWN_PROCESS;
+    } else if (strstr(message, "cluster: restart_process")) {
+      msg_type = CLUSTER_MSG_RESTART_PROCESS;
+    } else if (strstr(message, "cluster: bounce_process")) {
+      msg_type = CLUSTER_MSG_BOUNCE_PROCESS;
+    } else if (strstr(message, "cluster: clear_stats")) {
+      if (strlen(message) > sizeof("cluster: clear_stats") + 1) {
+        args =  message + sizeof("cluster: clear_stats") + 1;
+      }
+      msg_type = CLUSTER_MSG_CLEAR_STATS;
+    } else {
+      return false;
+    }
+    lmgmt->ccom->sendClusterMessage(msg_type, args);
+    return true;
+  }
+  return false;
+}                               /* End checkBackDoor */
diff --git a/mgmt/cluster/ClusterCom.h b/mgmt/cluster/ClusterCom.h
new file mode 100644
index 00000000..4dda298c
--- /dev/null
+++ b/mgmt/cluster/ClusterCom.h
@@ -0,0 +1,188 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************
+ *
+ * ClusterCom.h
+ *   Cluster communications class. Wrapper around communication
+ * channel used. This class is basically another agent in that it
+ * synthezises out bound data and collects incoming(user in the case
+ * of other agents, other nodes in this case) data.
+ *
+ * A thread is spun up at runtime to drain the incoming channel, and
+ * integrate it with other node data. Out bound is done by the main
+ * mgmt thread. This scheme should insure that the read buffer is always
+ * drained.
+ *
+ * $Date: 2007-10-05 16:56:45 $
+ *
+ *
+ */
+
+#ifndef _CLUSTER_COM_H
+#define _CLUSTER_COM_H
+
+#include "ink_platform.h"
+#include "P_RecDefs.h"
+#include "Rollback.h"
+
+#define CLUSTER_MSG_SHUTDOWN_MANAGER  1000
+#define CLUSTER_MSG_SHUTDOWN_PROCESS  1001
+#define CLUSTER_MSG_RESTART_PROCESS   1002
+#define CLUSTER_MSG_BOUNCE_PROCESS    1003
+#define CLUSTER_MSG_CLEAR_STATS       1004
+
+#define MAX_MC_GROUP_LEN 20
+#define MAX_NODE_SYSINFO_STRING 32
+
+#define CLUSTER_CONFIG_FILE_BLURB "# Cluster Configuration file\n#\n# This file is machine generated and machine parsed.\n# Please do not change this file by hand.\n#\n# This file designates the machines which make up the cluster\n# proper.  Data and load are distributed among these machines.\n#\n############################################################################\n# Number\n# IP:Port \n# ...\n############################################################################\n# Number = { 0, 1 ... } where 0 is a stand-alone proxy\n# IP:Port = IP address: cluster accept port number\n#\n# Example 1: stand-alone proxy\n# 0\n#\n# Example 2: 3 machines\n# 3\n# 127.1.2.3:83\n# 127.1.2.4:83\n# 127.1.2.5:83\n#\n"
+
+enum MgmtClusterType
+{
+  CLUSTER_INVALID = 0,
+  FULL_CLUSTER,
+  MGMT_CLUSTER,
+  NO_CLUSTER
+};
+
+enum ClusterMismatch
+{ TS_NAME_MISMATCH, TS_VER_MISMATCH };
+
+typedef struct _cluster_peer_info
+{
+  unsigned long inet_address;   /* IP addr of node */
+  int port;                     /* Cluster port */
+  int ccom_port;                /* CCom reliable port */
+  time_t idle_ticks;            /* Number of ticks since last heard */
+  time_t manager_idle_ticks;    /* Time last manager heartbeat received */
+  int manager_alive;
+
+  long last_time_recorded;
+  long delta;
+
+  int num_virt_addrs;
+
+  RecRecords node_rec_data;
+
+} ClusterPeerInfo;
+
+void *drainIncomingChannel(void *arg);
+bool checkBackDoor(int req_fd, char *message);
+
+
+class ClusterCom
+{
+public:
+
+  ClusterCom(unsigned long oip, char *hname, int mcport, char *group, int rsport, char *p);
+   ~ClusterCom()
+  {
+  };
+
+  void checkPeers(time_t * ticker);
+  void generateClusterDelta(void);
+  void handleMultiCastMessage(char *message);
+  void handleMultiCastFilePacket(char *last, char *from_ip);
+  void handleMultiCastStatPacket(char *last, ClusterPeerInfo * peer);
+  void handleMultiCastAlarmPacket(char *last, char *from_ip);
+  void handleMultiCastVMapPacket(char *last, char *from_ip);
+
+  void establishChannels();
+  void establishBroadcastChannel();
+  int establishReceiveChannel(int fatal_on_error = 1);
+
+  bool sendSharedData(bool send_proxy_heart_beat = true);
+  void constructSharedGenericPacket(char *message, int max, RecT packet_type);
+  void constructSharedStatPacket(char *message, int max);
+  void constructSharedFilePacket(char *message, int max);
+  static int constructSharedPacketHeader(char *message, char *ip, int max);
+
+  bool sendClusterMessage(int msg_type, const char *args = NULL);
+  bool sendOutgoingMessage(char *buf, int len);
+  bool sendReliableMessage(unsigned long addr, char *buf, int len);
+
+  bool rl_sendReliableMessage(unsigned long addr, const char *buf, int len);
+  bool sendReliableMessage(unsigned long addr, char *buf, int len, char *reply, int len2, bool take_lock);
+  bool sendReliableMessageReadTillClose(unsigned long addr, char *buf, int len, textBuffer * reply);
+
+  int receiveIncomingMessage(char *buf, int max);
+
+  bool isMaster();
+  unsigned long lowestPeer(int *no);
+  unsigned long highestPeer(int *no);
+
+  unsigned long getIP()
+  {
+    return our_ip;
+  }
+
+  void logClusterMismatch(const char *ip, ClusterMismatch type, char *data);
+
+  InkHashTable *mismatchLog;    // drainer thread use only
+
+  bool init;
+
+  MgmtClusterType cluster_type;
+
+  unsigned long our_ip;
+  char our_host[1024];
+
+  char sys_name[MAX_NODE_SYSINFO_STRING];
+  char sys_release[MAX_NODE_SYSINFO_STRING];
+
+  time_t delta_thresh;
+  time_t peer_timeout;
+  time_t mc_send_interval;
+  time_t mc_poll_timeout;
+  time_t our_wall_clock;
+  time_t startup_timeout;
+  time_t startup_time;
+  time_t last_shared_send;
+
+  int log_bogus_mc_msgs;
+
+  ink_mutex mutex;
+  InkHashTable *peers;
+  volatile int alive_peers_count;
+
+  char cluster_conf[1024];
+  Rollback *cluster_file_rb;
+
+  int cluster_port;
+  int reliable_server_port;
+  int reliable_server_fd;
+  int broadcast_fd;
+  int receive_fd;
+
+  int mc_port;
+  int mc_ttl;
+  char mc_group[MAX_MC_GROUP_LEN];
+
+  struct sockaddr_in broadcast_addr;
+  struct sockaddr_in receive_addr;
+
+};                              /* End class ClusterCom */
+
+struct in_addr *mgmt_sortipaddrs(int num, struct in_addr **list);
+
+#endif /* _CLUSTER_COM_H */
diff --git a/mgmt/cluster/Makefile.am b/mgmt/cluster/Makefile.am
new file mode 100644
index 00000000..52fe2624
--- /dev/null
+++ b/mgmt/cluster/Makefile.am
@@ -0,0 +1,39 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+MGMT_DEFS = @MGMT_DEFS@
+DEFS += $(MGMT_DEFS)
+
+noinst_LIBRARIES = libcluster.a
+
+libcluster_a_SOURCES = \
+  ClusterCom.cc \
+  ClusterCom.h \
+  VMap.cc \
+  VMap.h
diff --git a/mgmt/cluster/Makefile.in b/mgmt/cluster/Makefile.in
new file mode 100644
index 00000000..3e85c277
--- /dev/null
+++ b/mgmt/cluster/Makefile.in
@@ -0,0 +1,873 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
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+
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+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/mgmt/cluster/VMap.cc b/mgmt/cluster/VMap.cc
new file mode 100644
index 00000000..43cba206
--- /dev/null
+++ b/mgmt/cluster/VMap.cc
@@ -0,0 +1,892 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/************************************** */
+/*
+ * VMap.c
+ *   Function defs for the virtual mapping mgmt stuff.
+ *
+ *
+ */
+#include "ink_platform.h"
+
+#include "Main.h"
+#include "LocalManager.h"
+#include "VMap.h"
+#include "MgmtUtils.h"
+#include "P_RecLocal.h"
+#include "I_Layout.h"
+
+// for linux and freebsd
+#ifndef C_ISUID
+#define C_ISUID S_ISUID
+#endif
+
+int
+vmapEnableHandler(const char *tok, RecDataT /* data_type ATS_UNUSED */, RecData data, void * /* cookie ATS_UNUSED */)
+{
+  bool before = true;
+  ink_assert(!tok);
+  if (!lmgmt->virt_map->enabled)
+    before = false;
+  lmgmt->virt_map->enabled = (RecInt) data.rec_int;
+  if (!lmgmt->virt_map->enabled && before) {
+    lmgmt->virt_map->turning_off = true;        // turing VIP from off to on
+    lmgmt->virt_map->downAddrs();
+  }
+  return 0;
+}                               /* End vmapEnableHandler */
+
+
+VMap::VMap(char *interface, unsigned long ip, ink_mutex * m)
+{
+  bool found;
+
+  while (!m) {
+    mgmt_sleep_sec(1);
+  }                             // Wait until mutex pointer is initialized
+  mutex = m;
+
+  our_ip = ip;
+  num_interfaces = 0;
+  id_map = NULL;
+  interface_realip_map = ink_hash_table_create(InkHashTableKeyType_String);
+  our_map = ink_hash_table_create(InkHashTableKeyType_String);
+  ext_map = ink_hash_table_create(InkHashTableKeyType_String);
+  addr_list = NULL;
+  num_addrs = 0;
+  num_nics = 0;
+
+
+  this->interface = ats_strdup(interface);
+  turning_off = false;          // we are not turning off VIP
+
+  enabled = REC_readInteger("proxy.config.vmap.enabled", &found);
+  /*
+   * Perpetuating a hack for the cluster interface. Here I want to loop
+   * at startup(before any virtual ips have been brought up) and get the real
+   * IP address for each interface.
+   *
+   * Later this will be used to ping the interfaces that have virtual IP addrs
+   * associated with them to detect if the interface is down.
+   */
+  {                             /* First Add the cluster interface */
+    RealIPInfo *tmp_realip_info;
+    struct in_addr tmp_addr;
+
+    tmp_addr.s_addr = ip;
+
+    tmp_realip_info = (RealIPInfo *)ats_malloc(sizeof(RealIPInfo));
+    tmp_realip_info->real_ip = tmp_addr;
+    tmp_realip_info->mappings_for_interface = true;
+
+    num_nics++;
+    ink_hash_table_insert(interface_realip_map, interface, (void *) tmp_realip_info);
+    if (enabled) {
+      mgmt_log("[VMap::Vmap] Added cluster interface '%s' real ip: '%s' to known interfaces\n",
+               interface, inet_ntoa(tmp_realip_info->real_ip));
+    }
+  }
+  {
+    int tmp_socket;
+    struct sockaddr_in *tmp;    // a tmp ptr for addresses
+    struct ifconf ifc;          // ifconf information
+    char *ifbuf;                // ifconf buffer
+    struct ifreq *ifr, *ifend;  // pointer to individual inferface info
+    int lastlen;
+    int len;
+
+    if ((tmp_socket = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+      mgmt_fatal(stderr, errno, "[VMap::VMap] Unable to create socket for interface ioctls\n");
+    }
+    // INKqa06739
+    // Fetch the list of network interfaces
+    // . from Stevens, Unix Network Prog., pg 434-435
+    ifbuf = 0;
+    lastlen = 0;
+    len = 128 * sizeof(struct ifreq);   // initial buffer size guess
+    for (;;) {
+      ifbuf = (char *)ats_malloc(len);
+      memset(ifbuf, 0, len);    // prevent UMRs
+      ifc.ifc_len = len;
+      ifc.ifc_buf = ifbuf;
+      if (ioctl(tmp_socket, SIOCGIFCONF, &ifc) < 0) {
+        if (errno != EINVAL || lastlen != 0) {
+          mgmt_fatal(stderr, errno, "[VMap::VMap] Unable to read network interface configuration\n");
+        }
+      } else {
+        if (ifc.ifc_len == lastlen) {
+          break;
+        }
+        lastlen = ifc.ifc_len;
+      }
+      len *= 2;
+      ats_free(ifbuf);
+    }
+
+    ifr = ifc.ifc_req;
+    ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
+    // Loop through the list of interfaces
+    for (ifr = ifc.ifc_req; ifr < ifend;) {
+      if (ifr->ifr_addr.sa_family == AF_INET && strcmp(ifr->ifr_name, "lo0") != 0 && !strstr(ifr->ifr_name, ":")) {     // Don't count the loopback interface
+
+        // Get the address of the interface
+        if (ioctl(tmp_socket, SIOCGIFADDR, (char *) ifr) < 0) {
+          mgmt_log("[VMap::VMap] Unable obtain address for network interface %s, presuming unused\n", ifr->ifr_name);
+        } else {
+          InkHashTableValue hash_value;
+
+          // Only look at the address if it an internet address
+          if (ifr->ifr_ifru.ifru_addr.sa_family == AF_INET) {
+            RealIPInfo *tmp_realip_info;
+
+            tmp = (struct sockaddr_in *) &ifr->ifr_ifru.ifru_addr;
+
+            tmp_realip_info = (RealIPInfo *)ats_malloc(sizeof(RealIPInfo));
+            tmp_realip_info->real_ip = tmp->sin_addr;
+            tmp_realip_info->mappings_for_interface = false;
+
+            if (ink_hash_table_lookup(interface_realip_map, ifr->ifr_name, &hash_value) != 0) {
+              if (enabled) {
+                mgmt_log("[VMap::VMap] Already added interface '%s'. Not adding for"
+                         " real IP '%s'\n", ifr->ifr_name, inet_ntoa(tmp_realip_info->real_ip));
+              }
+              ats_free(tmp_realip_info);
+            } else {
+              ink_hash_table_insert(interface_realip_map, ifr->ifr_name, (void *) tmp_realip_info);
+              num_nics++;
+              if (enabled) {
+                mgmt_log("[VMap::Vmap] Added interface '%s' real ip: '%s' to known interfaces\n",
+                         ifr->ifr_name, inet_ntoa(tmp_realip_info->real_ip));
+              }
+            }
+          } else {
+            if (enabled) {
+              mgmt_log(stderr, "[VMap::VMap] Interface %s is not configured for IP.\n", ifr->ifr_name);
+            }
+          }
+        }
+      }
+#if defined(freebsd) || defined(darwin)
+      ifr = (struct ifreq *) ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len);
+#else
+      ifr = (struct ifreq *) (((char *) ifr) + sizeof(*ifr));
+#endif
+    }
+    ats_free(ifbuf);
+    close(tmp_socket);
+  }
+
+
+  RecRegisterConfigUpdateCb("proxy.config.vmap.enabled", vmapEnableHandler, NULL);
+
+  down_up_timeout = REC_readInteger("proxy.config.vmap.down_up_timeout", &found);
+  addr_list_fname = REC_readString("proxy.config.vmap.addr_file", &found);
+  lt_readAListFile(addr_list_fname);
+
+  map_change_thresh = 10;
+  last_map_change = time(NULL);
+
+  return;
+
+}                               /* End VMap::VMap */
+
+
+VMap::~VMap()
+{
+  if (id_map)
+    ink_hash_table_destroy_and_xfree_values(id_map);
+
+  ink_hash_table_destroy_and_xfree_values(interface_realip_map);
+  ink_hash_table_destroy(our_map);
+  ink_hash_table_destroy(ext_map);
+  ats_free(this->interface);
+  ats_free(addr_list);
+}                               /* End VMap::~VMap */
+
+
+/*
+ * lt_runGambit()
+ *   Function basically runs the virtual ip assignment gambit. If you are
+ * the current cluster master you will check for rebalancing or un-assigned
+ * interfaces and distribute them. Both cluster master and other nodes will
+ * check for conflicts between their virtual interfaces and other nodes in the
+ * cluster.
+ */
+void
+VMap::lt_runGambit()
+{
+  int i, no = 0;
+  char vaddr[80], raddr[80], *conf_addr = NULL;
+  bool init = false;
+  struct in_addr virtual_addr, real_addr;
+
+
+  if (!enabled) {
+    return;
+  }
+  if (!((time(NULL) - lmgmt->ccom->startup_time) > lmgmt->ccom->startup_timeout)) {
+    return;
+  }
+  if (num_addrs == 0) {
+    return;
+  }
+
+  ink_mutex_acquire(mutex);
+  if (lmgmt->ccom->isMaster()) {        /* Are we the cluster master? */
+
+    for (i = 0; i < num_addrs; i++) {   /* See if there is an unbound interface */
+      virtual_addr.s_addr = addr_list[i];
+      ink_strlcpy(vaddr, inet_ntoa(virtual_addr), sizeof(vaddr));
+      if (rl_boundAddr(vaddr) == 0) {
+        mgmt_log(stderr, "[VMap::lt_runGambit] Unmapped vaddr: '%s'\n", vaddr);
+        break;
+      }
+    }
+
+    if (i != num_addrs) {                /* Got one to map, find a candidate and map it */
+      real_addr.s_addr = lmgmt->ccom->lowestPeer(&no);
+      if (no != -1) {           /* Make sure we have peers to map interfaces to */
+        init = true;
+      }
+
+      if (init && ((no < num_interfaces) || (no == num_interfaces && real_addr.s_addr < our_ip))) {
+        ink_strlcpy(raddr, inet_ntoa(real_addr), sizeof(raddr));
+        rl_remote_map(vaddr, raddr);
+      } else if (!rl_map(vaddr)) {      /* We are the winner, map it to us */
+        mgmt_elog(stderr, 0, "[VMap::lt_runGambit] Map failed for vaddr: %s\n", vaddr);
+      } else {
+        mgmt_log(stderr, "[VMap::lt_runGambit] Map succeeded for vaddr: %s\n", vaddr);
+      }
+    }
+  }
+
+
+  for (i = 0; i < num_addrs; i++) {     /* Check for conflicts with your interfaces */
+    virtual_addr.s_addr = addr_list[i];
+    ink_strlcpy(vaddr, inet_ntoa(virtual_addr), sizeof(vaddr));
+
+    if ((conf_addr = rl_checkConflict(vaddr))) {
+      mgmt_log(stderr, "[VMap::lt_runGambit] Conflict w/addr: '%s' - Unable to use virtual address.\n", vaddr);
+      ats_free(conf_addr);
+      break;
+    }
+  }
+
+  ink_mutex_release(mutex);
+  return;
+}                               /* End VMap::lt_runGambit */
+
+
+/*
+ * lt_readAListFile(...)
+ *   Function reads in the virtual ip list, basically a parsing routine for the
+ * vaddr file.
+ */
+void
+VMap::lt_readAListFile(char * data)
+{
+  int tmp_num_addrs = 0;
+  char buf[1024];
+  char tmp_addr[1024], tmp_interface[1024];
+  FILE *fin;
+  char tmp_id[1024];
+  xptr<char> vaddr_path(Layout::get()->relative_to(Layout::get()->sysconfdir, data));
+
+  if (!(fin = fopen(vaddr_path, "r"))) {
+    mgmt_log(stderr, "[VMap::lt_readAListFile] Unable to open file: %s, addr list unchanged\n", (const char *)vaddr_path);
+    return;
+  }
+
+  ink_mutex_acquire(mutex);
+  rl_downAddrs();               /* Down everything before we re-init */
+  if (id_map) {
+    ink_hash_table_destroy_and_xfree_values(id_map);
+  }
+
+  id_map = ink_hash_table_create(InkHashTableKeyType_String);
+  while (fgets(buf, 1024, fin)) {
+    // since each of the tmp_addr, tmp_interface, tmp_id has length 1024 which is not less than buf
+    // so here we don't need to worry about overflow, disable coverity check for this line
+    // coverity[secure_coding]
+    if (buf[0] != '#' && isascii(buf[0]) && isdigit(buf[0]) &&
+        (sscanf(buf, "%s %s %s\n", tmp_addr, tmp_interface, tmp_id) == 3)) {
+      tmp_num_addrs++;
+    }
+  }
+
+  num_addrs = tmp_num_addrs;
+  if (num_addrs) {
+    addr_list = (unsigned long *)ats_malloc(sizeof(unsigned long) * num_addrs);
+  } else {                      /* Handle the case where there are no addrs in the file */
+    addr_list = NULL;
+    fclose(fin);
+    ink_mutex_release(mutex);
+    return;
+  }
+
+  tmp_num_addrs = 0;
+  rewind(fin);
+  while (fgets(buf, 1024, fin)) {
+    VIPInfo *tmp_val;
+    InkHashTableValue hash_value;
+
+    /* Make sure we have a valid line and its not commented */
+    // since each of the tmp_addr, tmp_interface, tmp_id has length 1024 which is not less than buf
+    // so here we don't need to worry about overflow, disable coverity check for this line
+    // coverity[secure_coding]
+    if (!isascii(buf[0]) || !isdigit(buf[0]) || (sscanf(buf, "%s %s %s\n", tmp_addr, tmp_interface, tmp_id) != 3)) {
+      continue;
+    }
+    mgmt_log("[VMap::lt_readAListFile] Adding virtual address '%s' interface: '%s'"
+             " sub-interface-id '%s'\n", tmp_addr, tmp_interface, tmp_id);
+
+    addr_list[tmp_num_addrs++] = inet_addr(tmp_addr);
+
+    tmp_val = (VIPInfo *)ats_malloc(sizeof(VIPInfo));
+
+    ink_strlcpy(tmp_val->interface, tmp_interface, sizeof(tmp_val->interface));
+    ink_strlcpy(tmp_val->sub_interface_id, tmp_id, sizeof(tmp_val->sub_interface_id));
+    ink_hash_table_insert(id_map, tmp_addr, (void *) tmp_val);
+
+    // we don't need to do mgmt ping stuff on NT the way its done on UNIX
+    if (ink_hash_table_lookup(interface_realip_map, tmp_interface, &hash_value) != 0) {
+
+      if (!((RealIPInfo *) hash_value)->mappings_for_interface) {
+        ((RealIPInfo *) hash_value)->mappings_for_interface = true;
+        mgmt_log(stderr, "[VMap::lt_readAListFile] Interface '%s' marked as having potential"
+                 " virtual ips\n", tmp_interface);
+      }
+    } else {
+      mgmt_elog(stderr, 0, "[VMap::lt_readAListFile] VIP in config file but no interface"
+                " '%s' present on node.\n", tmp_interface);
+    }
+  }
+  fclose(fin);
+
+  ink_mutex_release(mutex);
+  return;
+}                               /* End VMap::lt_readAListFile */
+
+
+/*
+ * rl_resetSeenFlag(...)
+ *   Function resets the "seen" flag for a given peer's mapped addrs.
+ */
+void
+VMap::rl_resetSeenFlag(char *ip)
+{
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(ext_map, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(ext_map, &iterator_state)) {
+
+    char *key = (char *) ink_hash_table_entry_key(ext_map, entry);
+    bool *tmp = (bool *) ink_hash_table_entry_value(ext_map, entry);
+
+    if (strstr(key, ip)) {
+      *tmp = false;
+    }
+  }
+  return;
+}                               /* End VMap::rl_resetSeenFlag */
+
+
+/*
+ * rl_clearUnSeen(...)
+ *   This function is a sweeper function to clean up the map.
+ */
+int
+VMap::rl_clearUnSeen(char *ip)
+{
+  int numAddrs = 0;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(ext_map, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(ext_map, &iterator_state)) {
+
+    char *key = (char *) ink_hash_table_entry_key(ext_map, entry);
+    bool *tmp = (bool *) ink_hash_table_entry_value(ext_map, entry);
+
+    if (strstr(key, ip)) {
+      if (!*tmp) {
+        ink_hash_table_delete(ext_map, key);    /* Safe in iterator? */
+        ats_free(tmp);
+      } else {
+        numAddrs++;
+      }
+    }
+  }
+  return numAddrs;
+}                               /* End VMap::rl_clearUnSeen */
+
+
+/*
+ * rl_remote_map(...)
+ *   Function sends the up interface command to a remote node.
+ */
+bool
+VMap::rl_remote_map(char *virt_ip, char *real_ip)
+{
+  char buf[1024], reply[4096];
+
+  snprintf((char *) buf, sizeof(buf), "map: %s", virt_ip);
+  if (!(lmgmt->ccom->sendReliableMessage(inet_addr(real_ip), buf, strlen(buf), reply, 4096, false))) {
+    mgmt_elog(stderr, errno, "[VMap::rl_remote_map] Reliable send failed\n");
+    return false;
+  } else if (strcmp(reply, "map: failed") == 0) {
+    mgmt_log(stderr, "[VMap::rl_remote_map] Mapping failed\n");
+    return false;
+  }
+  rl_map(virt_ip, real_ip);
+  return true;
+}                               /* End VMap::rl_remote_map */
+
+
+/*
+ * rl_remote_unmap(...)
+ *   Function sends the up interface command to a remote node.
+ */
+bool
+VMap::rl_remote_unmap(char *virt_ip, char *real_ip)
+{
+  char buf[1024], reply[4096];
+
+  snprintf((char *) buf, sizeof(buf), "unmap: %s", virt_ip);
+  if (!(lmgmt->ccom->sendReliableMessage(inet_addr(real_ip), buf, strlen(buf), reply, 4096, false))) {
+    mgmt_elog(stderr, errno, "[VMap::rl_remote_unmap] Reliable send failed\n");
+    return false;
+  } else if (strcmp((char *) reply, "unmap: failed") == 0) {
+    mgmt_log(stderr, "[VMap::rl_remote_unmap] Mapping failed\n");
+    return false;
+  }
+  return true;
+}                               /* End VMap::rl_remote_unmap */
+
+
+/*
+ * rl_map(...)
+ *   Function maps a virt_ip to a real_ip, if real_ip is NULL it maps it
+ *   to the local node itself. Otherwise it means another node within
+ *   the multicast cluster has it.
+ */
+bool
+VMap::rl_map(char *virt_ip, char *real_ip)
+{
+  char buf[80];
+  bool *entry;
+  InkHashTable *tmp;
+  InkHashTableValue hash_value;
+
+  if (real_ip) {
+    tmp = ext_map;
+    snprintf(buf, sizeof(buf), "%s %s", virt_ip, real_ip);
+  } else {
+    tmp = our_map;
+    ink_strlcpy(buf, virt_ip, sizeof(buf));
+  }
+
+  if (ink_hash_table_lookup(tmp, buf, &hash_value) != 0) {
+    *((bool *) hash_value) = true;
+    return false;
+  }
+
+  entry = (bool *)ats_malloc(sizeof(bool));
+  *entry = true;
+
+  if (!real_ip) {
+    mgmt_elog(0, "[VMap::rl_map] no real ip associated with virtual ip %s, mapping to local\n", buf);
+    last_map_change = time(NULL);
+  }
+  ink_hash_table_insert(tmp, buf, (void *) entry);
+  return true;
+}                               /* End VMap::rl_map */
+
+
+bool
+VMap::rl_unmap(char *virt_ip, char *real_ip)
+{
+  char buf[80];
+  InkHashTable *tmp;
+  InkHashTableValue hash_value;
+
+  if (real_ip) {
+    tmp = ext_map;
+    snprintf(buf, sizeof(buf), "%s %s", virt_ip, real_ip);
+  } else {
+    tmp = our_map;
+    ink_strlcpy(buf, virt_ip, sizeof(buf));
+  }
+
+  if (ink_hash_table_lookup(tmp, buf, &hash_value) == 0) {
+    return false;
+  }
+
+  if (!real_ip) {
+    last_map_change = time(NULL);
+  }
+  ink_hash_table_delete(tmp, buf);
+  ats_free(hash_value);
+  return true;
+}                               /* End VMap::rl_unmap */
+
+
+/*
+ * rl_checkConflict(...)
+ *   This function checks for virt conflicts between the local node and
+ * any peers. It returns NULL on no conflict or the real ip of the peer
+ * the local node is in contention with.
+ */
+char *
+VMap::rl_checkConflict(char *virt_ip)
+{
+  char *key = NULL;
+  bool in_our_map = false, in_ext_map = false;
+  InkHashTableValue hash_value;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if ((time(NULL) - last_map_change) < map_change_thresh) {
+    return NULL;
+  }
+
+  for (entry = ink_hash_table_iterator_first(ext_map, &iterator_state);
+       (entry != NULL && !in_ext_map); entry = ink_hash_table_iterator_next(ext_map, &iterator_state)) {
+
+    key = (char *) ink_hash_table_entry_key(ext_map, entry);
+    if (strstr(key, virt_ip)) {
+      in_ext_map = true;
+    }
+  }
+
+  if (ink_hash_table_lookup(our_map, virt_ip, &hash_value) != 0) {
+    in_our_map = true;
+  }
+
+  if (in_our_map && in_ext_map) {
+    char *buf, buf2[80];
+
+    if ((buf = strstr(key, " ")) != NULL) {
+      buf++;
+      ink_strlcpy(buf2, buf, sizeof(buf2));
+    } else {
+      mgmt_fatal(stderr, 0, "[VMap::rl_checkConflict] Corrupt VMap entry('%s'), bailing\n", key);
+    }
+    return ats_strdup(buf2);
+  }
+  return NULL;
+}                               /* End VMap::rl_checkConflict */
+
+
+/*
+ * checkGlobConflict(...)
+ *   This function checks for conflict in the local map as well as the
+ * global map. It returns false on no conflict and true on conflict.
+ */
+bool
+VMap::rl_checkGlobConflict(char *virt_ip)
+{
+  bool in_ext_map = false, ret = false;
+  InkHashTableValue hash_value;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  for (entry = ink_hash_table_iterator_first(ext_map, &iterator_state);
+       (entry != NULL && !in_ext_map); entry = ink_hash_table_iterator_next(ext_map, &iterator_state)) {
+
+    char *key = (char *) ink_hash_table_entry_key(ext_map, entry);
+    if (strstr(key, virt_ip)) {
+      if (!in_ext_map) {
+        in_ext_map = true;
+      }
+    }
+  }
+
+  if (in_ext_map) {
+    ret = true;
+  }
+
+  if (ret) {
+    return ret;
+  }
+
+  if (ink_hash_table_lookup(our_map, virt_ip, &hash_value) != 0) {
+    if (in_ext_map) {
+      ret = true;
+    } else {
+      ret = false;
+    }
+  }
+
+  return ret;
+}                               /* End VMap::rl_checkGlobConflict */
+
+/*
+ * remap(...)
+ *   Function attempts to remap virt_ip. If dest is NULL, test to see if local
+ * node should grab the addr.
+ */
+bool
+VMap::rl_remap(char *virt_ip, char *cur_ip, char *dest_ip, int cur_naddr, int dest_naddr)
+{
+  char buf[1024];
+  InkHashTable *tmp;
+  InkHashTableValue hash_value;
+
+  if (inet_addr(cur_ip) != our_ip) {
+    snprintf(buf, sizeof(buf), "%s %s", cur_ip, dest_ip);
+    tmp = ext_map;
+  } else {
+    struct in_addr addr;
+    addr.s_addr = our_ip;
+
+    ink_strlcpy(buf, inet_ntoa(addr), sizeof(buf));
+    tmp = our_map;
+  }
+
+  /* Verify the map is correct and has not changed */
+  if (ink_hash_table_lookup(tmp, buf, &hash_value) != 0) {
+    mgmt_log(stderr, "[VMap::rl_remap] Map has changed for ip: '%s' virt: '%s'\n", cur_ip, virt_ip);
+    return false;
+  } else if (cur_naddr <= dest_naddr) {
+    return false;
+  }
+
+  /* Down interface on cur_ip, wait for completion */
+  if (inet_addr(cur_ip) == our_ip) {
+    if (!rl_unmap(virt_ip)) {
+      return false;
+    }
+  } else {
+    if (!rl_remote_unmap(virt_ip, cur_ip)) {
+      return false;
+    }
+  }
+
+  /* Up interface on dest_ip, again wait for completion */
+  if (inet_addr(dest_ip) == our_ip) {
+    if (!rl_map(virt_ip)) {
+      return false;
+    }
+  } else {
+    if (!rl_remote_map(virt_ip, dest_ip)) {
+      return false;
+    }
+  }
+  return true;
+}                               /* End VMap::rl_remap */
+
+
+/*
+ * boundAddr(...)
+ *   Function tests whether or not the addr is bound. Returns 0(not bound),
+ * 1(bound locally), 2(bound in cluster).
+ */
+int
+VMap::rl_boundAddr(char *virt_ip)
+{
+  InkHashTableValue hash_value;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if (ink_hash_table_lookup(our_map, virt_ip, &hash_value) != 0) {
+    return 1;
+  }
+
+  for (entry = ink_hash_table_iterator_first(ext_map, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(ext_map, &iterator_state)) {
+    char *key = (char *) ink_hash_table_entry_key(ext_map, entry);
+
+    if (strstr(key, virt_ip)) {
+      return 2;
+    }
+  }
+  return 0;
+}                               /* End VMap::rl_boundAddr */
+
+
+/*
+ * boundTo(...)
+ *   Function returns ip addr(string form) of the node that the virt address
+ * is bound to. Returning NULL if it is unbound.
+ */
+unsigned long
+VMap::rl_boundTo(char *virt_ip)
+{
+  InkHashTableValue hash_value;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if (ink_hash_table_lookup(our_map, virt_ip, &hash_value) != 0) {
+    return our_ip;
+  }
+
+  for (entry = ink_hash_table_iterator_first(ext_map, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(ext_map, &iterator_state)) {
+    char *key = (char *) ink_hash_table_entry_key(ext_map, entry);
+
+    if (strstr(key, virt_ip)) {
+      char *buf, buf2[80];
+      if ((buf = strstr(key, " ")) != NULL) {
+        buf++;
+        ink_strlcpy(buf2, buf, sizeof(buf2));
+      } else {
+        mgmt_fatal(stderr, 0, "[VMap::rl_boundTo] Corrupt VMap entry('%s'), bailing\n", key);
+      }
+      return (inet_addr(buf2));
+    }
+  }
+  return 0;
+}                               /* End VMap::rl_boundTo */
+
+
+/*
+ * constructVMapMessage(...)
+ *   Constructs the broadcast message of the local nodes virtual ip map.
+ */
+void
+VMap::lt_constructVMapMessage(char *ip, char *message, int max)
+{
+  int n = 0, bsum = 0;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  if (!ip) {
+    return;
+  }
+  // Insert the standard mcast packet header
+  n = ClusterCom::constructSharedPacketHeader(message, ip, max);
+
+  if (!((n + (int) strlen("type: vmap\n")) < max)) {
+    if (max >= 1) {
+      message[0] = '\0';
+    }
+    return;
+  }
+
+  ink_strlcpy(&message[n], "type: vmap\n", max - n);
+  n += strlen("type: vmap\n");
+  bsum = n;
+
+  ink_mutex_acquire(mutex);
+  for (entry = ink_hash_table_iterator_first(our_map, &iterator_state);
+       (entry != NULL && n < max); entry = ink_hash_table_iterator_next(our_map, &iterator_state)) {
+
+    char buf[1024];
+    char *key = (char *) ink_hash_table_entry_key(our_map, entry);
+
+    snprintf(buf, sizeof(buf), "virt: %s\n", key);
+    if (!((n + (int) strlen(buf)) < max)) {
+      break;
+    }
+    ink_strlcpy(&message[n], buf, max - n);
+    n += strlen(buf);
+  }
+  ink_mutex_release(mutex);
+
+  if (n == bsum) {              /* No alarms */
+    if (!((n + (int) strlen("virt: none\n")) < max)) {
+      if (max >= 1) {
+        message[0] = '\0';
+      }
+      return;
+    }
+    ink_strlcpy(&message[n], "virt: none\n", max - n);
+    n += strlen("virt: none\n");
+  }
+  return;
+}                               /* End VMap::constructVMapMessage */
+
+void
+VMap::rl_downAddrs()
+{
+
+  for (int i = 0; i < num_addrs; i++) {
+    char str_addr[1024];
+    struct in_addr address;
+    address.s_addr = addr_list[i];
+    ink_strlcpy(str_addr, inet_ntoa(address), sizeof(str_addr));
+    rl_unmap(str_addr);
+  }
+  return;
+}                               /* End VMap::rl_downAddrs */
+
+void
+VMap::downAddrs()
+{
+  ink_mutex_acquire(mutex);
+  for (int i = 0; i < num_addrs; i++) {
+    removeAddressMapping(i);
+  }
+
+  // Reset On->Off flag
+  turning_off = false;
+
+  num_interfaces = 0;
+  ink_mutex_release(mutex);
+  return;
+}                               /* End VMap::downAddrs */
+
+
+void
+VMap::downOurAddrs()
+{
+  bool some_address_mapped = false;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+
+  ink_mutex_acquire(mutex);
+  for (entry = ink_hash_table_iterator_first(our_map, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(our_map, &iterator_state)) {
+    some_address_mapped = true;
+  }
+
+  /*
+   * If any address was mapped, take no chance and down
+   * everything we know about
+   */
+  if (some_address_mapped) {
+
+
+    for (int i = 0; i < num_addrs; i++) {
+      removeAddressMapping(i);
+    }
+  }
+  num_interfaces = 0;
+  ink_mutex_release(mutex);
+}                               /* End VMap::downOurAddrs */
+
+/*
+ * Remove a virtual address from our map
+ */
+void
+VMap::removeAddressMapping(int i)
+{
+  char str_addr[1024];
+  struct in_addr address;
+  address.s_addr = addr_list[i];
+  ink_strlcpy(str_addr, inet_ntoa(address), sizeof(str_addr));
+  ink_hash_table_delete(our_map, str_addr); /* Make sure removed */
+}
diff --git a/mgmt/cluster/VMap.h b/mgmt/cluster/VMap.h
new file mode 100644
index 00000000..1860720c
--- /dev/null
+++ b/mgmt/cluster/VMap.h
@@ -0,0 +1,125 @@
+/** @file
+
+  Class definition for virtual ip cluster mgmt. Maintains the virtual
+  map for the cluster and provides support for mapping operations.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#ifndef _VMAP_H
+#define _VMAP_H
+
+#include "libts.h"
+
+#define MAX_INTERFACE  16
+#define MAX_SUB_ID      8
+
+
+typedef struct _vip_info
+{
+  char interface[MAX_INTERFACE];
+  char sub_interface_id[MAX_SUB_ID];
+} VIPInfo;
+
+
+typedef struct _realip_info
+{
+  struct in_addr real_ip;
+  bool mappings_for_interface;
+} RealIPInfo;
+
+
+/*
+ * class VMap
+ *   Class implements the protocol and support functions for mapping the
+ * clusters virtual addresses. Member functions names are important here,
+ * since this class shares a lock with the ClusterCom class:
+ *
+ *      lt_   "Lock Taken"   -- release the lock prior to invoking
+ *      rl_   "Require Lock" -- acquire the lock prior to invoking
+ *
+ *   Care should also be taken when accessing any of the member variables,
+ * a lock is generally required before modification should be made to them.
+ *
+ */
+class VMap
+{
+
+public:
+
+  VMap(char *interface, unsigned long ip, ink_mutex * m);
+   ~VMap();
+
+  void downAddrs();
+  void downOurAddrs();
+  void rl_downAddrs();
+  void removeAddressMapping(int i);
+  void lt_runGambit();
+  void lt_readAListFile(char *data);
+  void lt_constructVMapMessage(char *ip, char *message, int max);
+
+  bool rl_remote_map(char *virt_ip, char *real_ip);
+  bool rl_remote_unmap(char *virt_ip, char *real_ip);
+
+  bool rl_map(char *virt_ip, char *real_ip = NULL);
+  bool rl_unmap(char *virt_ip, char *real_ip = NULL);
+  bool rl_remap(char *virt_ip, char *cur_ip, char *dest_ip, int cur_naddr, int dest_naddr);
+
+  char *rl_checkConflict(char *virt_ip);
+  bool rl_checkGlobConflict(char *virt_ip);
+
+  int rl_boundAddr(char *virt_ip);
+  unsigned long rl_boundTo(char *virt_ip);
+  int rl_clearUnSeen(char *ip);
+  void rl_resetSeenFlag(char *ip);
+
+  char vip_conf[PATH_NAME_MAX];
+  char absolute_vipconf_binary[PATH_NAME_MAX];
+
+  int enabled;
+  bool turning_off;             /* are we turning off VIP but haven't down'd the addr? */
+  /* map_init has never been used, remove it to avoid coverity complain */
+  int map_change_thresh;
+  time_t last_map_change;
+  time_t down_up_timeout;
+
+  char *addr_list_fname;
+
+  int num_addrs;
+  int num_nics;
+  unsigned long *addr_list;
+
+  int num_interfaces;
+  unsigned long our_ip;
+
+  ink_mutex *mutex;
+  // Map of virtual ip addresses assigned to the local node
+  InkHashTable *our_map;
+  // Map of virtual ip addresses assigned to other nodes; as indicated through multicast messages; used
+  // to detect conflicts
+  InkHashTable *ext_map;
+  InkHashTable *id_map;
+  InkHashTable *interface_realip_map;
+
+  char *interface;              /* used to passed the interface from VMap::VMap to VMap::init */
+
+private:
+
+};                              /* End class VMap */
+
+#endif /* _VMAP_H */
diff --git a/mgmt/stats/Makefile.am b/mgmt/stats/Makefile.am
new file mode 100644
index 00000000..5d501502
--- /dev/null
+++ b/mgmt/stats/Makefile.am
@@ -0,0 +1,43 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+MGMT_DEFS = @MGMT_DEFS@
+DEFS += $(MGMT_DEFS)
+
+noinst_LIBRARIES = libstats.a
+
+libstats_a_SOURCES = \
+  StatProcessor.cc \
+  StatProcessor.h \
+  StatType.cc \
+  StatType.h \
+  StatXML.cc \
+  StatXML.h
diff --git a/mgmt/stats/Makefile.in b/mgmt/stats/Makefile.in
new file mode 100644
index 00000000..2e8a0f28
--- /dev/null
+++ b/mgmt/stats/Makefile.in
@@ -0,0 +1,879 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
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+  esac; \
+  has_opt=no; \
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+  if $(am__is_gnu_make); then \
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+  strip_trailopt () \
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+  for flg in $$sane_makeflags; do \
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+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+pkgincludedir = $(includedir)/@PACKAGE@
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+transform = $(program_transform_name)
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+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
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+build_triplet = @build@
+host_triplet = @host@
+subdir = mgmt/stats
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp
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+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
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+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
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+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
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+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
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+ARFLAGS = cru
+AM_V_AR = $(am__v_AR_@AM_V@)
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+am__v_AR_0 = @echo "  AR      " $@;
+am__v_AR_1 = 
+libstats_a_AR = $(AR) $(ARFLAGS)
+libstats_a_LIBADD =
+am_libstats_a_OBJECTS = StatProcessor.$(OBJEXT) StatType.$(OBJEXT) \
+	StatXML.$(OBJEXT)
+libstats_a_OBJECTS = $(am_libstats_a_OBJECTS)
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+mostlyclean-libtool:
+	-rm -f *.lo
+
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+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
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+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
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+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/mgmt/stats/StatProcessor.cc b/mgmt/stats/StatProcessor.cc
new file mode 100644
index 00000000..000209e1
--- /dev/null
+++ b/mgmt/stats/StatProcessor.cc
@@ -0,0 +1,358 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+/****************************************************************************
+ *
+ *  StatProcessor.cc - Functions for computing node and cluster stat
+ *                          aggregation
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include "StatProcessor.h"
+
+#define STAT_CONFIG_FILE "stats.config.xml"
+
+StatObjectList statObjectList;
+StatXMLTag currentTag = INVALID_TAG;
+StatObject *statObject = NULL;
+char *exprContent = NULL;
+static unsigned statCount = 0;  // global statistics object counter
+bool nodeVar;
+bool sumClusterVar;
+
+// These helpers are used to work around the unsigned char'iness of xmlchar when
+// using libxml2. We don't have any tags (now) which uses UTF8.
+static int
+xml_atoi(const xmlchar *nptr)
+{
+  return atoi((const char*)nptr);
+}
+
+static double
+xml_atof(const xmlchar *nptr)
+{
+  return atof((const char*)nptr);
+}
+
+static int
+xml_strcmp(const xmlchar *s1, const char *s2)
+{
+  return strcmp((const char *)s1, s2);
+}
+
+
+static void
+elementStart(void * /* userData ATS_UNUSED */, const xmlchar *name, const xmlchar **atts)
+{
+  int i = 0;
+
+  if (!xml_strcmp(name, "ink:statistics"))
+    currentTag = ROOT_TAG;
+  else if (!xml_strcmp(name, "statistics"))
+    currentTag = STAT_TAG;
+  else if (!xml_strcmp(name, "destination"))
+    currentTag = DST_TAG;
+  else if (!xml_strcmp(name, "expression"))
+    currentTag = EXPR_TAG;
+  else
+    currentTag = INVALID_TAG;
+
+  switch (currentTag) {
+  case STAT_TAG:
+    statObject = new StatObject(++statCount);
+    Debug(MODULE_INIT, "\nStat #: ----------------------- %d -----------------------\n", statCount);
+
+    if (atts)
+     for (i = 0; atts[i]; i += 2) {
+      ink_assert(atts[i + 1]);    // Attribute comes in pairs, hopefully.
+
+      if (!xml_strcmp(atts[i], "minimum")) {
+        statObject->m_stats_min = (MgmtFloat) xml_atof(atts[i + 1]);
+        statObject->m_has_min = true;
+      } else if (!xml_strcmp(atts[i], "maximum")) {
+        statObject->m_stats_max = (MgmtFloat) xml_atof(atts[i + 1]);
+        statObject->m_has_max = true;
+      } else if (!xml_strcmp(atts[i], "interval")) {
+        statObject->m_update_interval = (ink_hrtime) xml_atoi(atts[i + 1]);
+      } else if (!xml_strcmp(atts[i], "debug")) {
+        statObject->m_debug = (atts[i + 1] && atts[i + 1][0] == '1');
+      }
+
+      Debug(MODULE_INIT, "\tDESTINTATION w/ attribute: %s -> %s\n", atts[i], atts[i + 1]);
+    }
+    break;
+
+  case EXPR_TAG:
+    exprContent = (char*)ats_malloc(BUFSIZ * 10);
+    memset(exprContent, 0, BUFSIZ * 10);
+    break;
+
+  case DST_TAG:
+    nodeVar = true;
+    sumClusterVar = true;       // Should only be used with cluster variable
+
+    if (atts)
+     for (i = 0; atts[i]; i += 2) {
+      ink_assert(atts[i + 1]);    // Attribute comes in pairs, hopefully.
+      if (!xml_strcmp(atts[i], "scope")) {
+        nodeVar = (!xml_strcmp(atts[i + 1], "node") ? true : false);
+      } else if (!xml_strcmp(atts[i], "operation")) {
+        sumClusterVar = (!xml_strcmp(atts[i + 1], "sum") ? true : false);
+      }
+
+      Debug(MODULE_INIT, "\tDESTINTATION w/ attribute: %s -> %s\n", atts[i], atts[i + 1]);
+    }
+
+    break;
+
+  case INVALID_TAG:
+    Debug(MODULE_INIT, "==========================================>%s<=\n", name);
+    break;
+
+  default:
+    break;
+  }
+}
+
+
+static void
+elementEnd(void * /* userData ATS_UNUSED */, const xmlchar */* name ATS_UNUSED */)
+{
+  switch (currentTag) {
+  case STAT_TAG:
+    statObjectList.enqueue(statObject);
+    currentTag = ROOT_TAG;
+    break;
+
+  case EXPR_TAG:
+    statObject->assignExpr(exprContent); // This hands over ownership of exprContent
+    // fall through
+
+  default:
+    currentTag = STAT_TAG;
+    break;
+  }
+}
+
+
+static void
+charDataHandler(void * /* userData ATS_UNUSED */, const xmlchar * name, int /* len ATS_UNUSED */)
+{
+  if (currentTag != EXPR_TAG && currentTag != DST_TAG) {
+    return;
+  }
+
+  char content[BUFSIZ * 10];
+  if (XML_extractContent((const char*)name, content, BUFSIZ * 10) == 0) {
+    return;
+  }
+
+  if (currentTag == EXPR_TAG) {
+    ink_strlcat(exprContent, content, BUFSIZ * 10); // see above for the size
+
+  } else {
+    statObject->assignDst(content, nodeVar, sumClusterVar);
+  }
+}
+
+
+StatProcessor::StatProcessor():m_lmgmt(NULL), m_overviewGenerator(NULL)
+{
+  rereadConfig();
+}
+
+
+void
+StatProcessor::rereadConfig()
+{
+  textBuffer *fileContent = NULL;
+  Rollback *fileRB = NULL;
+  char *fileBuffer = NULL;
+  version_t fileVersion;
+  int fileLen;
+
+  statObjectList.clean();
+  statCount = 0;                // reset statistics counter
+
+  int ret = configFiles->getRollbackObj(STAT_CONFIG_FILE, &fileRB);
+  if (!ret) {
+    Debug(MODULE_INIT, " Can't get Rollback for file: %s\n", STAT_CONFIG_FILE);
+  }
+  fileVersion = fileRB->getCurrentVersion();
+  fileRB->getVersion(fileVersion, &fileContent);
+  fileBuffer = fileContent->bufPtr();
+  fileLen = strlen(fileBuffer);
+
+#if HAVE_LIBEXPAT
+  /*
+   * Start the XML Praser -- the package used is EXPAT
+   */
+  XML_Parser parser = XML_ParserCreate(NULL);
+  XML_SetUserData(parser, NULL);
+  XML_SetElementHandler(parser, elementStart, elementEnd);
+  XML_SetCharacterDataHandler(parser, charDataHandler);
+
+  /*
+   * Substiture every newline with a space to get around
+   * the SetCharacterDataHandler problem.
+   */
+  char *newlinePtr;
+  while ((newlinePtr = strchr(fileBuffer, '\n')) != NULL || (newlinePtr = strchr(fileBuffer, '\r')) != NULL) {
+    *newlinePtr = ' ';
+  }
+
+  /*
+   * Parse the input file according to XML standard.
+   * Print error if we encounter any
+   */
+  int status = XML_Parse(parser, fileBuffer, fileLen, true);
+  if (!status) {
+    mgmt_log(stderr, "%s at line %d\n", XML_ErrorString(XML_GetErrorCode(parser)), XML_GetCurrentLineNumber(parser));
+  }
+
+  /*
+   * Cleaning upt
+   */
+  XML_ParserFree(parser);
+#else
+  /* Parse XML with libxml2 */
+  xmlSAXHandler sax;
+  memset(&sax, 0, sizeof(xmlSAXHandler));
+  sax.startElement = elementStart;
+  sax.endElement = elementEnd;
+  sax.characters = charDataHandler;
+  sax.initialized = 1;
+  xmlParserCtxtPtr parser = xmlCreatePushParserCtxt(&sax, NULL, NULL, 0, NULL);
+
+  int status = xmlParseChunk(parser, fileBuffer, fileLen, 1);
+  if (status != 0) {
+    xmlErrorPtr errptr = xmlCtxtGetLastError(parser);
+    mgmt_log(stderr, "%s at %s:%d\n", errptr->message, errptr->file, errptr->line);
+  }
+  xmlFreeParserCtxt(parser);
+#endif
+
+
+  delete fileContent;
+
+  Debug(MODULE_INIT, "\n\n---------- END OF PARSING & INITIALIZING ---------\n\n");
+}
+
+
+StatProcessor::~StatProcessor()
+{
+
+  Debug(MODULE_INIT, "[StatProcessor] Destructing Statistics Processor\n");
+
+}
+
+
+void
+setTest()
+{
+  char var_name[64];
+
+  for (int i = 1; i <= 5; i++) {
+    memset(var_name, 0, 64);
+    snprintf(var_name, sizeof(var_name), "proxy.node.stats.test%d", i);
+    if (i == 4) {
+      MgmtFloat tmp;
+      varFloatFromName("proxy.node.stats.test4", &tmp);
+      varSetFloat(var_name, tmp + 1, true);
+    } else {
+      varSetFloat(var_name, i, true);
+    }
+  }
+}
+
+
+void
+verifyTest()
+{
+  MgmtFloat tmp1, tmp2;
+
+  // 1. simple copy
+  varFloatFromName("proxy.node.stats.test1", &tmp1);
+  varFloatFromName("proxy.node.stats.test2", &tmp2);
+  if (tmp1 == tmp2) {
+    Debug(MODULE_INIT, "PASS -- simple copy");
+  } else {
+    Debug(MODULE_INIT, "FAIL -- simple copy");
+  }
+
+  // 2. simple interval
+  varFloatFromName("proxy.node.stats.test3", &tmp2);
+  if (tmp2 >= 10) {
+    Debug(MODULE_INIT, "PASS -- simple interval & constant");
+  } else {
+    Debug(MODULE_INIT, "FAIL -- simple interval & constant %f", tmp2);
+  }
+
+  // 3. delta
+  varFloatFromName("proxy.node.stats.test4", &tmp2);
+  if ((tmp2 > 150) && (tmp2 < 250)) {
+    Debug(MODULE_INIT, "PASS -- delta");
+  } else {
+    Debug(MODULE_INIT, "FAIL -- delta %f", tmp2);
+  }
+}
+
+
+/**
+ * Updating the statistics NOW.
+ **/
+unsigned short
+StatProcessor::processStat()
+{
+  unsigned short result = 0;
+
+  Debug(MODULE_INIT, "[StatProcessor] Processing Statistics....\n");
+
+//    setTest();
+  statObjectList.Eval();
+//    verifyTest();
+
+  return (result);
+}
+
+
+/**
+ * ExpressionEval
+ * --------------
+ *
+ */
+RecData
+ExpressionEval(char *exprString)
+{
+  RecDataT result_type;
+  StatObject statObject;
+
+  char content[BUFSIZ * 10];
+  XML_extractContent(exprString, content, BUFSIZ * 10);
+
+  statObject.assignExpr(content);
+  return statObject.NodeStatEval(&result_type, false);
+}
diff --git a/mgmt/stats/StatProcessor.h b/mgmt/stats/StatProcessor.h
new file mode 100644
index 00000000..5a3f37d4
--- /dev/null
+++ b/mgmt/stats/StatProcessor.h
@@ -0,0 +1,94 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _STAT_PROCESSOR_H_
+#define _STAT_PROCESSOR_H_
+
+/****************************************************************************
+ *
+ *  StatProcessor.h - Functions for computing node and cluster stat
+ *                          aggregation
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include <stdarg.h>
+#include "MgmtUtils.h"
+#include "MgmtDefs.h"
+#include "WebMgmtUtils.h"
+#include "ink_hrtime.h"
+#include "LocalManager.h"
+#include "WebOverview.h"
+
+#define _HEADER
+#define _D(x)
+#define _FOOTER
+#include "DynamicStats.h"
+#include "StatType.h"
+
+#if HAVE_LIBEXPAT
+#include "expat.h"
+typedef XML_Char xmlchar;
+#elif HAVE_LIBXML2
+#include <libxml/parser.h>
+#include <libxml/SAX.h>
+typedef xmlChar xmlchar;
+#else
+# error "No XML parser - please configure expat or libxml2"
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+
+class StatProcessor
+{
+public:
+
+  StatProcessor();
+  ~StatProcessor();
+
+  // Member Fuctions
+  unsigned short processStat();
+  void rereadConfig();
+
+  LocalManager *m_lmgmt;
+  overviewPage *m_overviewGenerator;
+};
+
+
+/**
+ * External expression evaluation API.
+ *
+ * INPUT: an expression string, e.g.:
+ * "(proxy.node.user_agent_total_bytes-proxy.node.origin_server_total_bytes)
+ *  / proxy.node.user_agent_total_bytes"
+ *
+ * RETURN: the resulting value of the expression.
+ * NOTE: it returns -9999.0 if there is an error.
+ *
+ */
+
+RecData ExpressionEval(char *);
+
+#endif
diff --git a/mgmt/stats/StatType.cc b/mgmt/stats/StatType.cc
new file mode 100644
index 00000000..1c51b958
--- /dev/null
+++ b/mgmt/stats/StatType.cc
@@ -0,0 +1,1199 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+/****************************************************************************
+ *
+ *  StatType.cc - Functions for computing node and cluster stat
+ *                          aggregation
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include "StatType.h"
+#include "MgmtUtils.h"
+#include "ink_hrtime.h"
+#include "WebOverview.h"
+
+bool StatError = false;         // global error flag
+bool StatDebug = false;         // global debug flag
+
+/**
+ * StatExprToken()
+ * ---------------
+ */
+StatExprToken::StatExprToken()
+  : m_arith_symbol('\0'),
+    m_token_name(NULL),
+    m_token_type(RECD_NULL),
+    m_sum_var(false), m_node_var(true)
+{
+  RecDataClear(RECD_NULL, &m_token_value);
+  RecDataClear(RECD_NULL, &m_token_value_max);
+  RecDataClear(RECD_NULL, &m_token_value_min);
+  memset(&m_token_value_delta, 0, sizeof(m_token_value_delta));
+}
+
+
+/**
+ * StatExprToken::copy()
+ * ---------------------
+ */
+void
+StatExprToken::copy(const StatExprToken & source)
+{
+  m_arith_symbol = source.m_arith_symbol;
+
+  if (source.m_token_name != NULL) {
+    m_token_name = ats_strdup(source.m_token_name);
+  }
+
+  m_token_type = source.m_token_type;
+  m_token_value = source.m_token_value;
+  m_token_value_min = source.m_token_value_min;
+  m_token_value_max = source.m_token_value_max;
+
+  if (source.m_token_value_delta) {
+    m_token_value_delta = new StatDataSamples();
+    m_token_value_delta->previous_time = source.m_token_value_delta->previous_time;
+    m_token_value_delta->current_time = source.m_token_value_delta->current_time;
+    m_token_value_delta->previous_value = source.m_token_value_delta->previous_value;
+    m_token_value_delta->current_value = source.m_token_value_delta->current_value;
+  }
+
+  m_node_var = source.m_node_var;
+  m_sum_var = source.m_sum_var;
+}
+
+
+/**
+ * StatExprToken::assignTokenName()
+ * --------------------------------
+ *  Assign the token name. If the token is a predefined constant,
+ *  assign the value as well. Also, assign the token type as well.
+ */
+void
+StatExprToken::assignTokenName(const char *name)
+{
+
+  if (isdigit(name[0])) {
+    // numerical constant
+    m_token_name = ats_strdup("CONSTANT");
+    m_token_type = RECD_CONST;
+  } else {
+    m_token_name = ats_strdup(name);
+    assignTokenType();
+  }
+
+  switch (m_token_type) {
+  case RECD_INT:
+  case RECD_COUNTER:
+  case RECD_FLOAT:
+    break;
+  case RECD_CONST:
+    // assign pre-defined constant in here
+    // constant will be stored as RecFloat type.
+    if (!strcmp(m_token_name, "CONSTANT")) {
+      m_token_value.rec_float = (RecFloat) atof(name);
+    } else if (!strcmp(m_token_name, "$BYTES_TO_MB_SCALE")) {
+      m_token_value.rec_float = (RecFloat) BYTES_TO_MB_SCALE;
+    } else if (!strcmp(m_token_name, "$MBIT_TO_KBIT_SCALE")) {
+      m_token_value.rec_float = (RecFloat) MBIT_TO_KBIT_SCALE;
+    } else if (!strcmp(m_token_name, "$SECOND_TO_MILLISECOND_SCALE")) {
+      m_token_value.rec_float = (RecFloat) SECOND_TO_MILLISECOND_SCALE;
+    } else if (!strcmp(m_token_name, "$PCT_TO_INTPCT_SCALE")) {
+      m_token_value.rec_float = (RecFloat) PCT_TO_INTPCT_SCALE;
+    } else if (!strcmp(m_token_name, "$HRTIME_SECOND")) {
+      m_token_value.rec_float = (RecFloat) HRTIME_SECOND;
+    } else if (!strcmp(m_token_name, "$BYTES_TO_MBIT_SCALE")) {
+      m_token_value.rec_float = (RecFloat) BYTES_TO_MBIT_SCALE;
+    } else {
+      mgmt_log(stderr, "[StatPro] ERROR: Undefined constant: %s\n", m_token_name);
+      StatError = true;
+    }
+  case RECD_FX:
+  default:
+    break;
+  }
+}
+
+
+/**
+ * assignTokenType()
+ * -----------------
+ * Assign the proper token type based on the token name.
+ * Do some token type conversion if necessary. Return true
+ * if the token type is recognizable; false otherwise.
+ */
+bool StatExprToken::assignTokenType()
+{
+  ink_assert(m_token_name != NULL);
+  m_token_type = varType(m_token_name);
+
+  if (m_token_name[0] == '$') {
+    m_token_type = RECD_CONST;
+  } else if (m_token_name[0] == '_') {
+    m_token_type = RECD_FX;
+  }
+
+  if (m_token_value_delta) {
+    m_token_value_delta->data_type = m_token_type;
+  }
+
+  // I'm guessing here that we want to check if we're still RECD_NULL,
+  // it used to be INVALID, which is not in the m_token_type's enum. /leif
+  return (m_token_type != RECD_NULL);
+}
+
+
+void
+StatExprToken::clean()
+{
+  ats_free(m_token_name);
+  delete m_token_value_delta;
+}
+
+
+/**
+ * FOR DEBUGGING ONLY
+ * Print the token according to its type in a human-readable format. :)
+ */
+void
+StatExprToken::print(const char *prefix)
+{
+  if (m_token_name != NULL) {
+    printf("%s\t%s\n", prefix, m_token_name);
+  } else {
+    printf("%s\t%c\n", prefix, m_arith_symbol);
+  }
+}
+
+
+/**
+ * StatExprToken::precedence()
+ * ---------------------------
+ * Return the binary operator precedence. The higher returning value,
+ * the higher the precedence value.
+ */
+short
+StatExprToken::precedence()
+{
+  switch (m_arith_symbol) {
+  case '(':
+    return 4;
+  case '^':                    // fall through
+  case '!':
+    return 3;
+  case '*':                    // fall through
+  case '/':
+    return 2;
+  case '+':                    // fall through
+  case '-':
+    return 1;
+  default:
+    return -1;
+  }
+}
+
+
+/**
+ * StatExprToken::statVarSet()
+ * ---------------------------
+ * This method is responsible for ensuring the assigning value
+ * fall within the min. and max. bound. If it's smaller than min.
+ * or larger than max, then the error value is assigned. If no
+ * error value is assigned, either min. or max. is assigned.
+ */
+bool StatExprToken::statVarSet(RecDataT type, RecData value)
+{
+  RecData converted_value;
+
+  if (StatError) {
+    /* fix this after librecords is done
+       mgmt_log(stderr,
+       "[StatPro] ERROR in a statistics aggregation operations\n");
+     */
+    RecData err_value;
+    RecDataClear(m_token_type, &err_value);
+    return varSetData(m_token_type, m_token_name, err_value);
+  }
+
+  /*
+   * do conversion if necessary.
+   */
+  if (m_token_type != type) {
+    switch (m_token_type) {
+    case RECD_INT:
+    case RECD_COUNTER:
+      if (type == RECD_NULL)
+        converted_value = value;
+      else if (type == RECD_INT || type == RECD_COUNTER || type == RECD_FX)
+        converted_value.rec_int = value.rec_int;
+      else if (type == RECD_FLOAT || type == RECD_CONST)
+        converted_value.rec_int = (RecInt)value.rec_float;
+      else
+        Fatal("%s, invalid value type:%d\n", m_token_name, type);
+      break;
+    case RECD_FLOAT:
+      if (type == RECD_NULL)
+        converted_value = value;
+      else if (type == RECD_INT || type == RECD_COUNTER || type == RECD_FX)
+        converted_value.rec_float = (RecFloat)value.rec_int;
+      else if (type == RECD_FLOAT || type == RECD_CONST)
+        converted_value.rec_float = value.rec_float;
+      else
+        Fatal("%s, invalid value type:%d\n", m_token_name, type);
+      break;
+    default:
+      Fatal("%s, unsupported token type:%d\n", m_token_name, m_token_type);
+    }
+  } else {
+    converted_value = value;
+  }
+
+  if (RecDataCmp(m_token_type, converted_value, m_token_value_min) < 0) {
+    value = m_token_value_min;
+  }
+  else if (RecDataCmp(m_token_type, converted_value, m_token_value_max) > 0) {
+    value = m_token_value_max;
+  }
+
+  return varSetData(m_token_type, m_token_name, converted_value);
+}
+
+
+/***********************************************************************
+					    	 StatExprList
+ **********************************************************************/
+
+/**
+ * StatExprList::StatExprList()
+ * ----------------------------
+ */
+StatExprList::StatExprList()
+ : m_size(0)
+{
+}
+
+
+/**
+ * StatExprList::clean()
+ * ---------------------
+ */
+void
+StatExprList::clean()
+{
+  StatExprToken *temp = NULL;
+
+  while ((temp = m_tokenList.dequeue())) {
+    delete(temp);
+    m_size -= 1;
+  }
+  ink_assert(m_size == 0);
+}
+
+
+void
+StatExprList::enqueue(StatExprToken * entry)
+{
+  ink_assert(entry);
+  m_tokenList.enqueue(entry);
+  m_size += 1;
+}
+
+
+void
+StatExprList::push(StatExprToken * entry)
+{
+  ink_assert(entry);
+  m_tokenList.push(entry);
+  m_size += 1;
+}
+
+
+StatExprToken *
+StatExprList::dequeue()
+{
+  if (m_size == 0) {
+    return NULL;
+  }
+  m_size -= 1;
+  return (StatExprToken *) m_tokenList.dequeue();
+}
+
+
+StatExprToken *
+StatExprList::pop()
+{
+  if (m_size == 0) {
+    return NULL;
+  }
+  m_size -= 1;
+  return m_tokenList.pop();
+}
+
+
+StatExprToken *
+StatExprList::top()
+{
+  if (m_size == 0) {
+    return NULL;
+  }
+  return m_tokenList.head;
+}
+
+
+StatExprToken *
+StatExprList::first()
+{
+  if (m_size == 0) {
+    return NULL;
+  }
+  return m_tokenList.head;
+}
+
+
+StatExprToken *
+StatExprList::next(StatExprToken * current)
+{
+  if (!current) {
+    return NULL;
+  }
+  return (current->link).next;
+}
+
+
+/**
+ * StatExprList::print()
+ * ---------------------
+ *  Print the token in the expression in a human-readable format. :)
+ */
+void
+StatExprList::print(const char *prefix)
+{
+  for (StatExprToken * token = first(); token; token = next(token)) {
+    token->print(prefix);
+  }
+}
+
+
+/**
+ * StatExprToken::count()
+ * ----------------------
+ * Counts the number of token in the expression list and return it.
+ */
+unsigned
+StatExprList::count()
+{
+  return m_size;
+}
+
+
+/***********************************************************************
+ 					    	     StatObject
+ **********************************************************************/
+
+
+/**
+ * StatObject::StatObject()
+ * ------------------------
+ */
+
+StatObject::StatObject()
+ : m_id(1),
+   m_debug(false),
+   m_expr_string(NULL),
+   m_node_dest(NULL),
+   m_cluster_dest(NULL),
+   m_expression(NULL),
+   m_postfix(NULL),
+   m_last_update(-1),
+   m_current_time(-1), m_update_interval(-1),
+   m_stats_max(FLT_MAX), m_stats_min(FLT_MIN),
+   m_has_max(false), m_has_min(false), m_has_delta(false)
+{
+}
+
+
+StatObject::StatObject(unsigned identifier)
+  : m_id(identifier),
+    m_debug(false),
+    m_expr_string(NULL),
+    m_node_dest(NULL),
+    m_cluster_dest(NULL),
+    m_expression(NULL),
+    m_postfix(NULL),
+    m_last_update(-1),
+    m_current_time(-1), m_update_interval(-1),
+    m_stats_max(FLT_MAX), m_stats_min(FLT_MIN),
+    m_has_max(false), m_has_min(false), m_has_delta(false)
+{
+}
+
+
+/**
+ * StatObject::clean()
+ * -------------------
+ */
+void
+StatObject::clean()
+{
+  ats_free(m_expr_string);
+  delete m_node_dest;
+  delete m_cluster_dest;
+  delete m_postfix;
+}
+
+
+/**
+ * StatObject::assignDst()
+ * -----------------------
+ */
+void
+StatObject::assignDst(const char *str, bool m_node_var, bool m_sum_var)
+{
+  if (StatDebug) {
+    Debug(MODULE_INIT, "DESTINTATION: %s\n", str);
+  }
+
+  StatExprToken *statToken = new StatExprToken();
+
+  statToken->assignTokenName(str);
+  statToken->m_node_var = m_node_var;
+  statToken->m_sum_var = m_sum_var;
+
+  // The type of dst token should be always not NULL
+  if (statToken->m_token_type == RECD_NULL) {
+    Fatal("token:%s, invalid token type!", statToken->m_token_name);
+  }
+
+  // Set max/min value
+  if (m_has_max)
+    RecDataSetFromFloat(statToken->m_token_type, &statToken->m_token_value_max,
+                        m_stats_max);
+  else
+    RecDataSetMax(statToken->m_token_type, &statToken->m_token_value_max);
+
+  if (m_has_min)
+    RecDataSetFromFloat(statToken->m_token_type, &statToken->m_token_value_min,
+                        m_stats_min);
+  else
+    RecDataSetMin(statToken->m_token_type, &statToken->m_token_value_min);
+
+  if (m_node_var) {
+    ink_assert(m_node_dest == NULL);
+    m_node_dest = statToken;
+  } else {
+    ink_assert(m_cluster_dest == NULL);
+    m_cluster_dest = statToken;
+  }
+}
+
+
+/**
+ * StatObject::assignExpr()
+ * ------------------------
+ */
+void
+StatObject::assignExpr(char *str)
+{
+  StatExprToken *statToken = NULL;
+
+  if (StatDebug) {
+    Debug(MODULE_INIT, "EXPRESSION: %s\n", str);
+  }
+  ink_assert(m_expr_string == NULL);
+  // We take ownership here
+  m_expr_string = str;
+
+  Tokenizer exprTok(" ");
+  exprTok.Initialize(str);
+  tok_iter_state exprTok_state;
+  const char *token = exprTok.iterFirst(&exprTok_state);
+
+  ink_assert(m_expression == NULL);
+  m_expression = new StatExprList();
+
+  while (token) {
+
+    statToken = new StatExprToken();
+
+    if (isOperator(token[0])) {
+
+      statToken->m_arith_symbol = token[0];
+      ink_assert(statToken->m_token_name == NULL);
+
+      if (StatDebug) {
+        Debug(MODULE_INIT, "\toperator: ->%c<-\n", statToken->m_arith_symbol);
+      }
+
+    } else {
+
+      ink_assert(statToken->m_arith_symbol == '\0');
+
+      // delta
+      if (token[0] == '#') {
+
+        token += 1;             // skip '#'
+        statToken->m_token_value_delta = new StatDataSamples();
+        statToken->m_token_value_delta->previous_time = (ink_hrtime) 0;
+        statToken->m_token_value_delta->current_time = (ink_hrtime) 0;
+        statToken->m_token_value_delta->data_type = RECD_NULL;
+        RecDataClear(RECD_NULL, &statToken->m_token_value_delta->previous_value);
+        RecDataClear(RECD_NULL, &statToken->m_token_value_delta->current_value);
+
+      }
+
+      statToken->assignTokenName(token);
+
+      if (StatDebug) {
+        Debug(MODULE_INIT, "\toperand:  ->%s<-\n", token);
+      }
+
+    }
+
+    token = exprTok.iterNext(&exprTok_state);
+    m_expression->enqueue(statToken);
+
+  }
+
+  infix2postfix();
+
+}
+
+
+/**
+ * StatObject::infix2postfix()
+ * ---------------------------
+ * Takes the infix "expression" and convert it to a postfix for future
+ * evaluation.
+ *
+ * SIDE EFFECT: consume all token in "expression"
+ */
+void
+StatObject::infix2postfix()
+{
+  StatExprList stack;
+  StatExprToken *tempToken = NULL;
+  StatExprToken *curToken = NULL;
+  m_postfix = new StatExprList();
+
+  while (m_expression->top()) {
+    curToken = m_expression->dequeue();
+
+    if (!isOperator(curToken->m_arith_symbol)) {
+      //printf("I2P~: enqueue %s\n", curToken->m_token_name);
+      m_postfix->enqueue(curToken);
+
+    } else {
+      ink_assert(curToken->m_arith_symbol != '\0');
+
+      if (curToken->m_arith_symbol == '(') {
+        stack.push(curToken);
+      } else if (curToken->m_arith_symbol == ')') {
+        tempToken = (StatExprToken *) stack.pop();
+
+        while (tempToken->m_arith_symbol != '(') {
+          //printf("I2P@: enqueue %c\n", tempToken->m_arith_symbol);
+          m_postfix->enqueue(tempToken);
+          tempToken = (StatExprToken *) stack.pop();
+        }
+
+        // Free up memory for ')'
+        delete(curToken);
+        delete(tempToken);
+
+      } else {
+        if (stack.count() == 0) {
+          stack.push(curToken);
+        } else {
+          tempToken = (StatExprToken *) stack.top();
+
+          while ((tempToken->m_arith_symbol != '(') && (tempToken->precedence() >= curToken->precedence())) {
+            tempToken = (StatExprToken *) stack.pop();  // skip the (
+            //printf("I2P$: enqueue %c\n", tempToken->m_arith_symbol);
+            m_postfix->enqueue(tempToken);
+            if (stack.count() == 0) {
+              break;
+            }
+            tempToken = (StatExprToken *) stack.top();
+          }                     // while
+
+          stack.push(curToken);
+        }
+      }
+    }
+  }
+
+  while (stack.count() > 0) {
+    tempToken = (StatExprToken *) stack.pop();
+    //printf("I2P?: enqueue %c\n", tempToken->m_arith_symbol);
+    m_postfix->enqueue(tempToken);
+  }
+
+  // dump infix expression
+  delete(m_expression);
+  m_expression = NULL;
+}
+
+
+/**
+ * StatObject::NodeStatEval()
+ * --------------------------
+ *
+ *
+ */
+RecData StatObject::NodeStatEval(RecDataT *result_type, bool cluster)
+{
+  StatExprList stack;
+  StatExprToken *left = NULL;
+  StatExprToken *right = NULL;
+  StatExprToken *result = NULL;
+  StatExprToken *curToken = NULL;
+  RecData tempValue;
+  RecDataClear(RECD_NULL, &tempValue);
+
+  *result_type = RECD_NULL;
+
+  /* Express checkout lane -- Stat. object with on 1 source variable */
+  if (m_postfix->count() == 1) {
+    StatExprToken * src = m_postfix->top();
+
+    // in librecords, not all statistics are register at initialization
+    // must assign proper type if it is undefined.
+    if (src->m_token_type == RECD_NULL) {
+      src->assignTokenType();
+    }
+
+    *result_type = src->m_token_type;
+    if (src->m_token_type == RECD_CONST) {
+      tempValue = src->m_token_value;
+    } else if (src->m_token_value_delta) {
+      tempValue = src->m_token_value_delta->diff_value(src->m_token_name);
+    } else if (!cluster) {
+      if (!varDataFromName(src->m_token_type, src->m_token_name, &tempValue)) {
+        RecDataClear(src->m_token_type, &tempValue);
+      }
+    } else {
+      if (!overviewGenerator->varClusterDataFromName(src->m_token_type,
+                                                     src->m_token_name,
+                                                     &tempValue)) {
+        RecDataClear(src->m_token_type, &tempValue);
+      }
+    }
+  } else {
+
+    /* standard postfix evaluation */
+    for (StatExprToken * token = m_postfix->first(); token; token = m_postfix->next(token)) {
+      /* carbon-copy the token. */
+      curToken = new StatExprToken();
+      curToken->copy(*token);
+
+      if (!isOperator(curToken->m_arith_symbol)) {
+        stack.push(curToken);
+      } else {
+        ink_assert(isOperator(curToken->m_arith_symbol));
+        right = stack.pop();
+        left = stack.pop();
+
+        if (left->m_token_type == RECD_NULL) {
+          left->assignTokenType();
+        }
+        if (right->m_token_type == RECD_NULL) {
+          right->assignTokenType();
+        }
+
+        result = StatBinaryEval(left, curToken->m_arith_symbol, right, cluster);
+
+        stack.push(result);
+        delete(curToken);
+        delete(left);
+        delete(right);
+      }
+    }
+
+    /* should only be 1 value left on stack -- the resulting value */
+    if (stack.count() > 1) {
+      stack.print("\t");
+      ink_assert(false);
+    }
+
+    *result_type = stack.top()->m_token_type;
+    tempValue = stack.top()->m_token_value;
+  }
+
+  return tempValue;
+
+}
+
+
+/**
+ * StatObject::ClusterStatEval()
+ * -----------------------------
+ *
+ *
+ */
+RecData StatObject::ClusterStatEval(RecDataT *result_type)
+{
+  /* Sanity check */
+  ink_assert(m_cluster_dest && !m_cluster_dest->m_node_var);
+
+  // what is this?
+  if ((m_node_dest == NULL) || (m_cluster_dest->m_sum_var == false)) {
+    return NodeStatEval(result_type, true);
+  } else {
+    RecData tempValue;
+
+    if (!overviewGenerator->varClusterDataFromName(m_node_dest->m_token_type,
+                                                   m_node_dest->m_token_name,
+                                                   &tempValue)) {
+      *result_type = RECD_NULL;
+      RecDataClear(*result_type, &tempValue);
+    }
+
+    return (tempValue);
+  }
+}
+
+
+/**
+ * StatObject::setTokenValue()
+ * ---------------------------
+ * The logic of the following code segment is the following.
+ * The objective is to extract the appropriate right->m_token_value.
+ * If 'right' is an intermediate value, nothing to do.
+ * If m_token_type is RECD_CONST, nothing to do.
+ * If m_token_type is RECD_FX, right->m_token_value is the diff. in time.
+ * If m_token_type is either RECD_INT or RECD_FLOAT, it can either
+ * by a cluster variable or a node variable.
+ *     If it is a cluster variable, just use varClusterFloatFromName
+ *     to set right->m_token_value.
+ *     If it is a node variable, then it can either be a variable
+ *     with delta. To determine whether it has a delta, simply search
+ *     the m_token_name in the delta list. If found then it has delta.
+ *     If it has delta then use the delta's diff. in value,
+ *     otherwise simply set right->m_token_value with varFloatFromName.
+ */
+void
+StatObject::setTokenValue(StatExprToken * token, bool cluster)
+{
+  if (token->m_token_name) {
+    // it is NOT an intermediate value
+
+    switch (token->m_token_type) {
+    case RECD_CONST:
+      break;
+
+    case RECD_FX:
+      // only support time function
+      // use rec_int to store time value
+      token->m_token_value.rec_int = (m_current_time - m_last_update);
+      break;
+
+    case RECD_INT:             // fallthought
+    case RECD_COUNTER:
+    case RECD_FLOAT:
+      if (cluster) {
+        if (!overviewGenerator->varClusterDataFromName(token->m_token_type,
+                                                       token->m_token_name,
+                                                       &(token->m_token_value)))
+        {
+          RecDataClear(token->m_token_type, &token->m_token_value);
+        }
+      } else {
+        if (token->m_token_value_delta) {
+          token->m_token_value =
+            token->m_token_value_delta->diff_value(token->m_token_name);
+        } else {
+          if (!varDataFromName(token->m_token_type, token->m_token_name,
+                               &(token->m_token_value))) {
+            RecDataClear(token->m_token_type, &token->m_token_value);
+          }
+        }                       // delta?
+      }                         // cluster?
+      break;
+
+    default:
+      if (StatDebug) {
+        Debug(MODULE, "Unrecognized token \"%s\" of type %d.\n",
+              token->m_token_name, token->m_token_type);
+      }
+    }                           // switch
+  }                             // m_token_name?
+}
+
+
+/**
+ * StatObject::StatBinaryEval()
+ * ------------------------
+ * Take the left token, the right token, an binary operation and perform an
+ * arithmatic operations on them. This function is responsible for getting the
+ * correct value from:
+ * - (1) node variable
+ * - (2) node variable with a delta structure
+ * - (3) cluster variable
+ * - (4) an immediate value
+ */
+StatExprToken *StatObject::StatBinaryEval(StatExprToken * left, char op,
+                                          StatExprToken * right, bool cluster)
+{
+  RecData l, r;
+  StatExprToken *result = new StatExprToken();
+  result->m_token_type = RECD_INT;
+
+  if (left->m_token_type == RECD_NULL
+      && right->m_token_type == RECD_NULL) {
+    return result;
+  }
+
+  if (left->m_token_type != RECD_NULL) {
+    setTokenValue(left, cluster);
+    result->m_token_type = left->m_token_type;
+  }
+
+  if (right->m_token_type != RECD_NULL) {
+    setTokenValue(right, cluster);
+    switch (result->m_token_type) {
+    case RECD_NULL:
+      result->m_token_type = right->m_token_type;
+      break;
+    case RECD_FX:
+    case RECD_INT:
+    case RECD_COUNTER:
+      /*
+       * When types of left and right are different, select RECD_FLOAT
+       * as result type. It's may lead to loss of precision when do
+       * conversion, be careful!
+       */
+      if (right->m_token_type == RECD_FLOAT
+          || right->m_token_type == RECD_CONST) {
+        result->m_token_type = right->m_token_type;
+      }
+      break;
+    case RECD_CONST:
+    case RECD_FLOAT:
+      break;
+    default:
+      Fatal("Unexpected RecData Type:%d", result->m_token_type);
+      break;
+    }
+  }
+
+  /*
+   * We should make the operands with the same type before calculating.
+   */
+  RecDataClear(RECD_NULL, &l);
+  RecDataClear(RECD_NULL, &r);
+
+  if (left->m_token_type == right->m_token_type ) {
+    l = left->m_token_value;
+    r = right->m_token_value;
+  } else if (result->m_token_type != left->m_token_type) {
+    if (left->m_token_type != RECD_NULL) {
+      ink_assert(result->m_token_type == RECD_FLOAT
+                 || result->m_token_type == RECD_CONST);
+
+      l.rec_float = (RecFloat)left->m_token_value.rec_int;
+    }
+    r = right->m_token_value;
+    ink_assert(result->m_token_type == right->m_token_type);
+  } else {
+    l = left->m_token_value;
+    if (right->m_token_type != RECD_NULL) {
+      ink_assert(result->m_token_type == RECD_FLOAT
+                 || result->m_token_type == RECD_CONST);
+
+      r.rec_float = (RecFloat)right->m_token_value.rec_int;
+    }
+    ink_assert(result->m_token_type == left->m_token_type);
+  }
+
+  /*
+   * Start to calculate
+   */
+  switch (op) {
+  case '+':
+    result->m_token_value = RecDataAdd(result->m_token_type, l, r);
+    break;
+
+  case '-':
+    result->m_token_value = RecDataSub(result->m_token_type, l, r);
+    break;
+
+  case '*':
+    result->m_token_value = RecDataMul(result->m_token_type, l, r);
+    break;
+
+  case '/':
+    RecData recTmp;
+    RecDataClear(RECD_NULL, &recTmp);
+
+    /*
+     * Force the type of result to be RecFloat on div operation
+     */
+    if (result->m_token_type != RECD_FLOAT && result->m_token_type != RECD_CONST) {
+      RecFloat t;
+
+      result->m_token_type = RECD_FLOAT;
+
+      t = (RecFloat)l.rec_int;
+      l.rec_float = t;
+
+      t = (RecFloat)r.rec_int;
+      r.rec_float = t;
+    }
+
+    if (RecDataCmp(result->m_token_type, r, recTmp)) {
+      result->m_token_value = RecDataDiv(result->m_token_type, l, r);
+    }
+    break;
+
+  default:
+    // should never reach here
+    StatError = true;
+  }
+
+  return (result);
+}
+
+
+/***********************************************************************
+ 					    	   StatObjectList
+ **********************************************************************/
+
+StatObjectList::StatObjectList()
+ : m_size(0)
+{
+}
+
+
+void
+StatObjectList::clean()
+{
+  StatObject *temp = NULL;
+
+  while ((temp = m_statList.dequeue())) {
+    m_size -= 1;
+    delete(temp);
+  }
+
+  ink_assert(m_size == 0);
+}
+
+
+void
+StatObjectList::enqueue(StatObject * object)
+{
+  for (StatExprToken * token = object->m_postfix->first(); token; token = object->m_postfix->next(token)) {
+    if (token->m_token_value_delta) {
+      object->m_has_delta = true;
+      break;
+    }
+  }
+
+  m_statList.enqueue(object);
+  m_size += 1;
+}
+
+
+StatObject *
+StatObjectList::first()
+{
+  return m_statList.head;
+}
+
+
+StatObject *
+StatObjectList::next(StatObject * current)
+{
+  return (current->link).next;
+}
+
+
+/**
+ * StatObjectList::Eval()
+ * ----------------------
+ * The statisitic processor entry point to perform the calculation.
+ */
+short
+StatObjectList::Eval()
+{
+  RecData tempValue;
+  RecData result;
+  RecDataT result_type;
+  ink_hrtime threshold = 0;
+  ink_hrtime delta = 0;
+  short count = 0;
+
+  RecDataClear(RECD_NULL, &tempValue);
+  RecDataClear(RECD_NULL, &result);
+
+  for (StatObject * object = first(); object; object = next(object)) {
+    StatError = false;
+    StatDebug = object->m_debug;
+
+    if (StatDebug) {
+      Debug(MODULE, "\n##### %d #####\n", object->m_id);
+    }
+
+    if (object->m_update_interval <= 0) {
+      // non-time statistics
+      object->m_current_time = ink_get_hrtime_internal();
+
+      if (object->m_node_dest) {
+        result = object->NodeStatEval(&result_type, false);
+        object->m_node_dest->statVarSet(result_type, result);
+      }
+
+      if (object->m_cluster_dest) {
+        result = object->ClusterStatEval(&result_type);
+        object->m_cluster_dest->statVarSet(result_type, result);
+      }
+
+      object->m_last_update = object->m_current_time;
+    } else {
+      // timed statisitics
+      object->m_current_time = ink_get_hrtime_internal();
+
+      threshold = object->m_update_interval * HRTIME_SECOND;
+      delta = object->m_current_time - object->m_last_update;
+
+      if (StatDebug) {
+        Debug(MODULE, "\tUPDATE:%" PRId64 " THRESHOLD:%" PRId64 ", DELTA:%" PRId64 "\n", object->m_update_interval, threshold, delta);
+      }
+
+      /* Should we do the calculation? */
+      if ((delta > threshold) ||        /* sufficient elapsed time? */
+          (object->m_last_update == -1) ||      /*       first time?       */
+          (object->m_last_update > object->m_current_time)) {   /*wrapped */
+
+        if (StatDebug) {
+          if (delta > threshold) {
+            Debug(MODULE, "\t\tdelta > threshold IS TRUE!\n");
+          }
+          if (object->m_last_update == -1) {
+            Debug(MODULE, "\t\tm_last_update = -1 IS TRUE!\n");
+          }
+          if (object->m_last_update > object->m_current_time) {
+            Debug(MODULE, "\t\tm_last_update > m_current_time IS TRUE\n");
+          }
+        }
+
+        if (!object->m_has_delta) {
+
+          if (StatDebug) {
+            Debug(MODULE, "\tEVAL: Simple time-condition.\n");
+          }
+
+          if (object->m_node_dest) {
+            result = object->NodeStatEval(&result_type, false);
+            object->m_node_dest->statVarSet(result_type, result);
+          }
+
+          if (object->m_cluster_dest) {
+            result = object->ClusterStatEval(&result_type);
+            object->m_cluster_dest->statVarSet(result_type, result);
+          }
+
+          object->m_last_update = object->m_current_time;
+        } else {
+          /* has delta */
+          if (StatDebug) {
+            Debug(MODULE, "\tEVAL: Complicated time-condition.\n");
+          }
+          // scroll old values
+          for (StatExprToken * token = object->m_postfix->first(); token; token = object->m_expression->next(token)) {
+
+            // in librecords, not all statistics are register at initialization
+            // must assign proper type if it is undefined.
+            if (!isOperator(token->m_arith_symbol) && token->m_token_type == RECD_NULL) {
+              token->assignTokenType();
+            }
+
+            if (token->m_token_value_delta) {
+              if (!varDataFromName(token->m_token_type, token->m_token_name,
+                                   &tempValue)) {
+                RecDataClear(RECD_NULL, &tempValue);
+              }
+
+              token->m_token_value_delta->previous_time = token->m_token_value_delta->current_time;
+              token->m_token_value_delta->previous_value = token->m_token_value_delta->current_value;
+              token->m_token_value_delta->current_time = object->m_current_time;
+              token->m_token_value_delta->current_value = tempValue;
+            }
+          }
+
+          if (delta > threshold) {
+            if (object->m_node_dest) {
+              result = object->NodeStatEval(&result_type, false);
+              object->m_node_dest->statVarSet(result_type, result);
+            }
+
+            if (object->m_cluster_dest) {
+              result = object->ClusterStatEval(&result_type);
+              object->m_cluster_dest->statVarSet(result_type, result);
+            }
+
+            object->m_last_update = object->m_current_time;
+          } else {
+            if (StatDebug) {
+              Debug(MODULE, "\tEVAL: Timer not expired, do nothing\n");
+            }
+          }
+        }                       /* delta? */
+      } else {
+        if (StatDebug) {
+          Debug(MODULE, "\tEVAL: Timer not expired, nor 1st time, nor wrapped, SORRY!\n");
+        }
+      }                         /* timed event */
+    }
+    count += 1;
+  }                             /* for */
+
+  return count;
+}                               /* Eval() */
+
+
+/**
+ * StatObjectList::print()
+ * --------------------------
+ * Print the list of of statistics object in a human-readable format. :)
+ */
+void
+StatObjectList::print(const char *prefix)
+{
+  for (StatObject * object = first(); object; object = next(object)) {
+    if (StatDebug) {
+      Debug(MODULE, "\n%sSTAT OBJECT#: %d\n", prefix, object->m_id);
+    }
+
+    if (object->m_expression) {
+      object->m_expression->print("\t");
+    }
+
+    if (object->m_postfix) {
+      object->m_postfix->print("\t");
+    }
+  }
+}
diff --git a/mgmt/stats/StatType.h b/mgmt/stats/StatType.h
new file mode 100644
index 00000000..673e1e7a
--- /dev/null
+++ b/mgmt/stats/StatType.h
@@ -0,0 +1,231 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************/
+/****************************************************************************
+ *
+ *  StatType.h - Functions for computing node and cluster stat
+ *                          aggregation
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _STATTYPE_H_
+#define	_STATTYPE_H_
+
+#include "StatXML.h"
+#include "Main.h"               // Debug()
+#include "WebMgmtUtils.h"
+
+#define BYTES_TO_MBIT_SCALE (8/1000000.0)
+
+/* Structs used in Average Statistics calculations */
+struct StatDataSamples
+{
+  ink_hrtime previous_time;
+  ink_hrtime current_time;
+  RecDataT data_type;
+  RecData previous_value;
+  RecData current_value;
+
+  RecData diff_value(const char *name)
+  {
+    RecData tmp;
+
+    if (data_type == RECD_NULL) {
+      data_type = varType(name);
+    }
+
+    if (data_type != RECD_NULL)
+      return RecDataSub(data_type, current_value, previous_value);
+    else {
+      RecDataClear(RECD_NULL, &tmp);
+      return tmp;
+    }
+  }
+  ink_hrtime diff_time()
+  {
+    return (current_time - previous_time);
+  }
+};
+
+// Urgly workaround -- no optimization in HPUX
+#if defined(hpux)
+#define inline
+#endif
+
+#define MODULE      "StatPro"   // Statistics processor debug tag
+#define MODULE_INIT "StatProInit"       // Statistics processor debug tag
+
+/***************************************************************
+ *                       StatExprToken
+ * a statistics expression token can either be a binary operator,
+ * name '+', '-', '*', '/', or parenthesis '(', ')' or a TS variable.
+ * In the former case, the arithSymbol stores the operator or
+ * paranthesis; otherwise arithSymbol is '/0';
+ ***************************************************************/
+class StatExprToken
+{
+
+public:
+
+  char m_arith_symbol;
+  char *m_token_name;
+  RecDataT m_token_type;
+  RecData m_token_value;
+  RecData m_token_value_max;
+  RecData m_token_value_min;
+  StatDataSamples *m_token_value_delta;
+  bool m_sum_var;
+  bool m_node_var;
+
+  // Member Functions
+  void assignTokenName(const char *);
+  bool assignTokenType();
+  void print(const char *);
+  short precedence();
+  void copy(const StatExprToken &);
+
+  LINK(StatExprToken, link);
+  StatExprToken();
+  inline ~ StatExprToken()
+  {
+    clean();
+  };
+  void clean();
+
+  bool statVarSet(RecDataT, RecData);
+};
+
+
+/**
+ * StatExprList
+ *   simply a list of StatExprToken.
+ **/
+class StatExprList
+{
+
+public:
+
+  StatExprList();
+  inline ~ StatExprList()
+  {
+    clean();
+  };
+  void clean();
+
+  void enqueue(StatExprToken *);
+  void push(StatExprToken *);
+  StatExprToken *dequeue();
+  StatExprToken *pop();
+  StatExprToken *top();
+  StatExprToken *first();
+  StatExprToken *next(StatExprToken *);
+  unsigned count();
+  void print(const char *);
+
+private:
+
+  size_t m_size;
+  Queue<StatExprToken> m_tokenList;
+};
+
+/***************************************************************
+ *                        StatObject
+ * Each entry in the statistics XML file is represented by a
+ * StatObject.
+ ***************************************************************/
+class StatObject
+{
+
+public:
+
+  unsigned m_id;
+  bool m_debug;
+  char *m_expr_string;          /* for debugging using only */
+  StatExprToken *m_node_dest;
+  StatExprToken *m_cluster_dest;
+  StatExprList *m_expression;
+  StatExprList *m_postfix;
+  ink_hrtime m_last_update;
+  ink_hrtime m_current_time;
+  ink_hrtime m_update_interval;
+  RecFloat m_stats_max;
+  RecFloat m_stats_min;
+  bool m_has_max;
+  bool m_has_min;
+  bool m_has_delta;
+  LINK(StatObject, link);
+
+  // Member functions
+  StatObject();
+  StatObject(unsigned);
+  inline ~ StatObject()
+  {
+    clean();
+  };
+  void clean();
+  void assignDst(const char *, bool, bool);
+  void assignExpr(char *);
+
+  StatExprToken *StatBinaryEval(StatExprToken *, char, StatExprToken *, bool cluster = false);
+  RecData NodeStatEval(RecDataT *result_type, bool cluster);
+  RecData ClusterStatEval(RecDataT *result_type);
+  void setTokenValue(StatExprToken *, bool cluster = false);
+
+private:
+
+  void infix2postfix();
+};
+
+
+/**
+ * StatObjectList
+ *    simply a list of StatObject.
+ **/
+class StatObjectList
+{
+
+public:
+
+  // Member functions
+  StatObjectList();
+  inline ~ StatObjectList()
+  {
+    clean();
+  };
+  void clean();
+  void enqueue(StatObject * object);
+  StatObject *first();
+  StatObject *next(StatObject * current);
+  void print(const char *prefix = "");
+  short Eval();                 // return the number of statistics object processed
+
+  size_t m_size;
+
+private:
+
+  Queue<StatObject> m_statList;
+};
+
+#endif
diff --git a/mgmt/stats/StatXML.cc b/mgmt/stats/StatXML.cc
new file mode 100644
index 00000000..277b84a4
--- /dev/null
+++ b/mgmt/stats/StatXML.cc
@@ -0,0 +1,82 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "StatXML.h"
+#include <stdlib.h>
+#include <ctype.h>
+
+//
+// Extract the text between a pair of XML tag and returns the length
+// of the extracted text.
+//
+unsigned short
+XML_extractContent(const char *name, char *content, size_t result_len)
+{
+
+  char c;
+  int contentIndex = 0;
+
+  memset(content, 0, result_len);
+  for (unsigned short nameIndex = 0; name[nameIndex] != '<'; nameIndex += 1) {
+    c = name[nameIndex];
+
+    if (isspace(c)) {
+      continue;
+    }
+
+    if (isOperator(c)) {
+      content[contentIndex++] = ' ';
+      content[contentIndex++] = c;
+      content[contentIndex++] = ' ';
+    } else {
+      content[contentIndex++] = c;
+    }
+  }
+
+  return (strlen(content));
+
+}
+
+
+//
+// Returns true  if 'c'is an operator (in our definition),
+//         false otherwise
+//
+bool
+isOperator(char c)
+{
+
+  switch (c) {
+  case '+':
+  case '-':
+  case '*':
+  case '/':
+  case '(':
+  case ')':
+    return true;
+  default:
+    return false;
+  }
+
+}
diff --git a/mgmt/stats/StatXML.h b/mgmt/stats/StatXML.h
new file mode 100644
index 00000000..b31063ba
--- /dev/null
+++ b/mgmt/stats/StatXML.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef _STATXML_H_
+#define	_STATXML_H_
+
+#include "WebMgmtUtils.h"
+#include "List.h"
+
+typedef enum
+{
+  INVALID_TAG = -1,
+  ROOT_TAG,
+  STAT_TAG,
+  DST_TAG,
+  EXPR_TAG
+} StatXMLTag;
+
+/***************************************************************
+ *                      General Methods
+ ***************************************************************/
+bool isOperator(char);
+int XML_getContent(const char *, int, char *, StatXMLTag);
+unsigned short XML_extractContent(const char *, char *, size_t);
+
+#endif
diff --git a/mgmt/stats/spec b/mgmt/stats/spec
new file mode 100644
index 00000000..97bdb904
--- /dev/null
+++ b/mgmt/stats/spec
@@ -0,0 +1,236 @@
+//-----------------------------------------------------------------------------
+//
+// Statistics Processor
+//
+// Last Update: 04/11/2001
+//
+//-----------------------------------------------------------------------------
+// -*- coding: utf-8 -*-
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+//-----------------------------------------------------------------------------
+// Design
+//-----------------------------------------------------------------------------
+
+This statistics processor is a Cougar II (Tsunami) feature. 
+It is designed to replace the StatAggregate.cc and portion of WebOverview.cc 
+for scalability, maintainability, and ability to customize reasons.
+
+The statistics processor aggregate/calculate traffic server statistics based
+on a XML-based configuration file. At the processor's initialization, the 
+configuration file is read and parsed. Each set of calculation is then stored
+as a C++ object, called StatObject; and each StatObject is linked into a list,
+called StatObjectList.
+
+The mgmt/traffic_manager threads will invoke the StatObjectList->Eval() to
+perform the statistics aggregation and calculation within its event loop. As
+Eval() is call, each StatObject in StatObjectList is evaluated.
+
+Recall: StatAggregate.cc aggregates/calculates/copies proxy.process.* TS
+variables to proxy.node.* variables. Similarly, WebOverview.cc aggregate
+proxy.node.* variables to their corresponding proxy.cluster.* variable.
+
+So there are two types of calculations in the statistics processor: NodeEval
+and ClusterEval. As their names imply, they aggregate node-based statistics
+and clsuter-based statistics, respectively. We call the different basis of 
+statistics aggregation as "scope". (See "Destination Attributes")
+
+In the cluster-based statistics, the aggregation is further divided into two
+types: sum and re-calculate. Sum refers calculating the proxy.cluster.* 
+variable by simply summing all required proxy.node.* variables from nodes in
+the cluster. Re-calculate refers to summing all proxy.nodes.* variables that 
+are used in the process of calculation before performing the calculation. 
+An analogy would be, summing all open connection in the cluster vs. the 
+average hit rate in the cluster.
+
+//-----------------------------------------------------------------------------
+// Destination Attributes
+//-----------------------------------------------------------------------------
+	
+	"scope" 
+	- "node"
+	- "cluster"
+
+	"operation"
+	- "sum"
+		summing the corresponding node variable across all nodes in the cluster.
+	- "re-calculate"
+		
+
+	"define"
+	- "custom"
+	- "built-in"
+
+//-----------------------------------------------------------------------------
+// Predefined Constants and Functions
+//-----------------------------------------------------------------------------
+	
+	Predefined Constants
+
+	. BYTES_TO_MB_SCALE (1/(1024*1024.0))
+	  - convert bytes to mega-bytes
+
+	. MBIT_TO_KBIT_SCALE (1000.0)
+	  - convert mega-bits to kilo-bits
+
+	. SECOND_TO_MILLISECOND_SCALE (1000.0)
+	  - convert seconds to milliseconds
+
+	. PCT_TO_INTPCT_SCALE (100.0)
+	  - convert ratios to percentage
+
+	. HRTIME_SECOND
+	  - converting milli-seconds to seconds
+
+	. BYTES_TO_MBIT_SCALE (8/1000000.0)
+	  - convert bytes to mega-bits
+
+	Predefined Functions
+	. DIFFTIME
+	  - the number of milliseconds since last update. Usually used in 
+        combination of HRTIME_SECOND which computes the number of seconds
+        since last update.
+
+//-----------------------------------------------------------------------------
+// Unit test plan
+//-----------------------------------------------------------------------------
+
+The statistics processor is designed to replace StatAggregate.cc and part of
+the WebOverview. The first thing to test StatProcessor is to comment the 
+aggregateNodeRecords() and doClusterAg() calls from mgmt/Main.cc.
+
+The next step is to replace the above function calls with StatProcessor::
+processStat().
+
+This statistics processor is a rather complicated module in traffic manager.
+Hence it can't be easily tested. We divided the test into multiple sections.
+
+1) Node-based Simple Aggregation
+	- simply performs those aggregation that are node-based and the aggregation
+      is performed every time statProcess() is invoked.
+	  E.g.: hit rate = doc. hit / doc. served.
+
+2) Node-based Time-Delta Aggregation
+	- performs those aggregation that are node-based but the operation is only
+      perform in a regular interval AND one of more variables in the 
+      calculation is obtained by calculating the difference between the last
+      updated value and the current value. E.g. average connections per second
+      is calculated by subtracting the 10 seconds ago connection count from the
+      current connection count and divide the quotient by 10.
+
+Repeat the about 2 testes with cluster-based variables. So, we have, at least,
+4 test cases.
+
+Developing a PASS/FAIL unit test that will test the statistics processor is not 
+cost-efficient. The approach we are going to use is to display the input value
+and the output value before and after the calculation is done.
+
+Let's subdivide the testes in two stages:
+
+Stage 1 : Synthetic Data
+------------------------
+We control the testing environment by setting the input values. This will test
+the correctness of the statistics processor in a controlled environment. PASS/
+FAIL is determined by matching the input/output values.
+
+Stage 2 : Load Data
+-------------------
+Submitting network traffic through traffic server with load tools like jtest and
+ftest, dumps the statistics to a text file, periodically and examines the
+resulting values
+
+//-----------------------------------------------------------------------------
+// For QA Engineer
+//-----------------------------------------------------------------------------
+The most concerning question for QA engineers is "how can I tell if the 
+Statistics Processor is working correctly?"
+
+Recall, the new Statistics Processor is meant to replace the StatAggregate.cc
+and part of the WebOverview.cc. In essence, you should not see any apparent
+change.
+
+If you ever see a value of -9999.0 (or -9999), then there is an error in
+computing that value.
+
+
+<expr>
+    - %d
+    - %f
+    - %k
+
+<dst>
+    - specifies the variable that stores that result value.
+    - ATTRIBUTE: type
+        built-in: variables that are built-in/defined in traffic server
+        custom: variables that are introducted to be temporary storage or
+                variables that are introdcuted by the client.
+    - default attributes:
+	type = built-in  
+
+<src>
+    - variable need to computer the <dst>
+    - ATTRIBUTE: type
+	node: this is a proxy.node.* variables
+	cluster: the is a proxy.node.* variables but summing over all
+                 nodes in the cluster.
+    - default attributes:
+	type = node
+
+<min>
+    - specifics what is the smallest possible value for <dst>. For values
+      smaller than <min>, the <defualt> is used.
+
+<max>
+    - specifics what is the largest possible value for <dst>. For values
+      larger than <max>, the <defualt> is used.
+
+<default>
+    - specifics what value to be assigned to <dst> is the result <dst>
+      value is smaller then <min> or larger then <max>
+
+RULES: (some of these are enfored by the DTD anyways)
+- all operator and operand in <expr> MUST BE separated by a single space.
+- the order of the tags matters
+- the order of each entry matters
+- each statistics entry has have at most 1 <dst>
+
+
+DEFINED CONSTANT (in alphabetical order)
+* _BYTES_TO_MB_SCALE
+	* Origin: utils/WebMgmtUtils.h
+	* Value:  (1/(1024*1024.0))
+
+*  _HRTIME_SECOND
+	* Origin:
+	* Value: 
+
+*  _MBIT_TO_KBIT_SCALE
+	* Origin: utils/WebMgmtUtils.h
+	* Value:  (1000.0);
+
+*  _PCT_TO_INTPCT_SCALE
+	* Origin: utils/WebMgmtUtils.h
+	* Value:  (100.0);
+
+*  _SECOND_TO_MILLISECOND_SCALE
+	* Origin: utils/WebMgmtUtils.h
+	* Value:  (1000.0);
+
+
+            __DIFFTIME
diff --git a/mgmt/utils/ExpandingArray.cc b/mgmt/utils/ExpandingArray.cc
new file mode 100644
index 00000000..09ba6797
--- /dev/null
+++ b/mgmt/utils/ExpandingArray.cc
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_platform.h"
+#include "ink_memory.h"
+#include "ExpandingArray.h"
+
+ExpandingArray::ExpandingArray(int initialSize, bool freeContents)
+{
+
+  if (initialSize < EA_MIN_SIZE) {
+    initialSize = EA_MIN_SIZE;
+  }
+
+  internalArray = (void **)ats_malloc(initialSize * sizeof(void *));
+
+  freeContentsOnDestruct = freeContents;
+  internalArraySize = initialSize;
+  numValidValues = 0;
+}
+
+ExpandingArray::~ExpandingArray()
+{
+
+  if (freeContentsOnDestruct == true) {
+    for (int i = 0; i < numValidValues; i++) {
+      ats_free(internalArray[i]);
+    }
+  }
+  ats_free(internalArray);
+}
+
+void *
+ExpandingArray::operator [] (int index)
+{
+
+  if (index < numValidValues) {
+    return internalArray[index];
+  } else {
+    return NULL;
+  }
+}
+
+int
+ExpandingArray::addEntry(void *entry)
+{
+
+  if (numValidValues == internalArraySize) {
+    // Time to increase the size of the array
+    internalArray = (void **)ats_realloc(internalArray, 2 * sizeof(void *) * internalArraySize);
+    internalArraySize *= 2;
+  }
+
+  internalArray[numValidValues] = entry;
+
+  return numValidValues++;
+}
+
+void
+ExpandingArray::sortWithFunction(int (sortFunc) (const void *, const void *))
+{
+  qsort(internalArray, numValidValues, sizeof(void *), sortFunc);
+}
diff --git a/mgmt/utils/ExpandingArray.h b/mgmt/utils/ExpandingArray.h
new file mode 100644
index 00000000..1f8b9277
--- /dev/null
+++ b/mgmt/utils/ExpandingArray.h
@@ -0,0 +1,62 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _EXPANDING_ARRAY_H_
+#define _EXPANDING_ARRAY_H_
+
+/****************************************************************************
+ *
+ *  ExpandingArray.h - interface for a simple expanding array class
+ *
+ *  Thread-Safe: no
+ *
+ *
+ ****************************************************************************/
+
+#define EA_MIN_SIZE 4
+
+class ExpandingArray
+{
+public:
+  ExpandingArray(int initialSize, bool freeContents);
+   ~ExpandingArray();
+  void *operator [] (int index);
+  int addEntry(void *entry);
+  void sortWithFunction(int (sortFunc) (const void *, const void *));
+  int getNumEntries()
+  {
+    return numValidValues;
+  };
+  // INTERNAL DataStructure access, use with care
+  void **getArray()
+  {
+    return internalArray;
+  };
+private:
+  int internalArraySize;
+  void **internalArray;
+  int numValidValues;
+  bool freeContentsOnDestruct;
+};
+
+#endif
diff --git a/mgmt/utils/Makefile.am b/mgmt/utils/Makefile.am
new file mode 100644
index 00000000..91c81fe2
--- /dev/null
+++ b/mgmt/utils/Makefile.am
@@ -0,0 +1,53 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/utils \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/lib/tsconfig \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib
+
+MGMT_DEFS = @MGMT_DEFS@
+DEFS += $(MGMT_DEFS)
+
+# header files used by other libraries
+EXTRA_DIST = MgmtHashTable.h MgmtSocket.h
+
+noinst_LIBRARIES = libutils_lm.a libutils_p.a
+
+libutils_lm_a_CPPFLAGS = $(ink_with_modules_local) $(AM_CPPFLAGS)
+libutils_lm_a_SOURCES = \
+  ExpandingArray.cc \
+  ExpandingArray.h \
+  MgmtUtils.cc \
+  MgmtUtils.h \
+  WebMgmtUtils.cc \
+  WebMgmtUtils.h
+
+libutils_p_a_SOURCES = \
+  MgmtUtils.cc \
+  MgmtUtils.h
diff --git a/mgmt/utils/Makefile.in b/mgmt/utils/Makefile.in
new file mode 100644
index 00000000..593dfd19
--- /dev/null
+++ b/mgmt/utils/Makefile.in
@@ -0,0 +1,942 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
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+
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+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/utils \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/lib/tsconfig \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib
+
+
+# header files used by other libraries
+EXTRA_DIST = MgmtHashTable.h MgmtSocket.h
+noinst_LIBRARIES = libutils_lm.a libutils_p.a
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+  ExpandingArray.cc \
+  ExpandingArray.h \
+  MgmtUtils.cc \
+  MgmtUtils.h \
+  WebMgmtUtils.cc \
+  WebMgmtUtils.h
+
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+  MgmtUtils.cc \
+  MgmtUtils.h
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+.SUFFIXES: .cc .lo .o .obj
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign mgmt/utils/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign mgmt/utils/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
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+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libutils_lm.a: $(libutils_lm_a_OBJECTS) $(libutils_lm_a_DEPENDENCIES) $(EXTRA_libutils_lm_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libutils_lm.a
+	$(AM_V_AR)$(libutils_lm_a_AR) libutils_lm.a $(libutils_lm_a_OBJECTS) $(libutils_lm_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libutils_lm.a
+
+libutils_p.a: $(libutils_p_a_OBJECTS) $(libutils_p_a_DEPENDENCIES) $(EXTRA_libutils_p_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libutils_p.a
+	$(AM_V_AR)$(libutils_p_a_AR) libutils_p.a $(libutils_p_a_OBJECTS) $(libutils_p_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libutils_p.a
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/MgmtUtils.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libutils_lm_a-ExpandingArray.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libutils_lm_a-MgmtUtils.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libutils_lm_a-WebMgmtUtils.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
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+@am__fastdepCXX_TRUE@	$(AM_V_CXX)$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libutils_lm_a_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) -MT libutils_lm_a-ExpandingArray.o -MD -MP -MF $(DEPDIR)/libutils_lm_a-ExpandingArray.Tpo -c -o libutils_lm_a-ExpandingArray.o `test -f 'ExpandingArray.cc' || echo '$(srcdir)/'`ExpandingArray.cc
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+libutils_lm_a-MgmtUtils.obj: MgmtUtils.cc
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
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+	-rm -rf .libs _libs
+
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+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+
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+	     $$unique
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+	list='$(am__tagged_files)'; \
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
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+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+	fi
+mostlyclean-generic:
+
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+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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diff --git a/mgmt/utils/MgmtHashTable.h b/mgmt/utils/MgmtHashTable.h
new file mode 100644
index 00000000..5718dba2
--- /dev/null
+++ b/mgmt/utils/MgmtHashTable.h
@@ -0,0 +1,187 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ *
+ * MgmtHashTable.h
+ *
+ * $Date: 2003-06-01 18:38:21 $
+ *
+ *
+ */
+
+#ifndef _MGMT_HASH_TABLE_H
+#define _MGMT_HASH_TABLE_H
+
+#include "ink_memory.h"
+#include "ink_hash_table.h"
+#include "ink_mutex.h"
+
+class MgmtHashTable
+{
+
+public:
+
+  MgmtHashTable(const char *name, bool xfree_on_delete, InkHashTableKeyType type)
+  {
+    ink_mutex_init(&mutex, name);
+    destroy_and_free = xfree_on_delete;
+    ht = ink_hash_table_create(type);
+  }
+
+   ~MgmtHashTable()
+  {
+    ink_mutex_acquire(&mutex);
+    if (destroy_and_free) {
+      ink_hash_table_destroy_and_xfree_values(ht);
+    } else {
+      ink_hash_table_destroy(ht);
+    }
+    ink_mutex_release(&mutex);
+  }
+
+  int mgmt_hash_table_isbound(InkHashTableKey key)
+  {
+    int ret;
+
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_isbound(ht, key);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_isbound */
+
+  int mgmt_hash_table_lookup(const char *key, InkHashTableValue * value_ptr)
+  {
+    int ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_lookup(ht, key, value_ptr);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_lookup */
+
+  int mgmt_hash_table_delete(InkHashTableKey key)
+  {
+    InkHashTableEntry *entry;
+    int ret;
+    ink_mutex_acquire(&mutex);
+    if (destroy_and_free) {
+      entry = ink_hash_table_lookup_entry(ht, key);
+      if (entry != NULL) {
+        InkHashTableValue value = ink_hash_table_entry_value(ht, entry);
+        if (value != NULL) {
+          ats_free(value);
+        }
+        ret = ink_hash_table_delete(ht, key);
+      }
+      else {  //not found
+        ret = 0;
+      }
+    }
+    else {
+      ret = ink_hash_table_delete(ht, key);
+    }
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_delete */
+
+  InkHashTableEntry *mgmt_hash_table_lookup_entry(InkHashTableKey key)
+  {
+    InkHashTableEntry *ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_lookup_entry(ht, key);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_lookup_entry */
+
+  InkHashTableEntry *mgmt_hash_table_get_entry(InkHashTableKey key, int *new_value)
+  {
+    InkHashTableEntry *ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_get_entry(ht, key, new_value);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_get_entry */
+
+  void mgmt_hash_table_insert(const char *key, InkHashTableValue value)
+  {
+    ink_mutex_acquire(&mutex);
+    ink_hash_table_insert(ht, key, value);
+    ink_mutex_release(&mutex);
+    return;
+  }                             /* End MgmtHashTable::mgmt_hash_table_insert */
+
+  InkHashTableEntry *mgmt_hash_table_iterator_first(InkHashTableIteratorState * state_ptr)
+  {
+    InkHashTableEntry *ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_iterator_first(ht, state_ptr);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_iterator_first */
+
+  InkHashTableEntry *mgmt_hash_table_iterator_next(InkHashTableIteratorState * state_ptr)
+  {
+    InkHashTableEntry *ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_iterator_next(ht, state_ptr);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_iterator_next */
+
+  InkHashTableKey mgmt_hash_table_entry_key(InkHashTableEntry * entry_ptr)
+  {
+    InkHashTableKey ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_entry_key(ht, entry_ptr);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_entry_key */
+
+  InkHashTableValue mgmt_hash_table_entry_value(InkHashTableEntry * entry_ptr)
+  {
+    InkHashTableValue ret;
+    ink_mutex_acquire(&mutex);
+    ret = ink_hash_table_entry_value(ht, entry_ptr);
+    ink_mutex_release(&mutex);
+    return ret;
+  }                             /* End MgmtHashTable::mgmt_hash_table_entry_value */
+
+  void mgmt_hash_table_dump_strings()
+  {
+    ink_mutex_acquire(&mutex);
+    ink_hash_table_dump_strings(ht);
+    ink_mutex_release(&mutex);
+    return;
+  }                             /* End MgmtHashTable::mgmt_hash_Table_dump_strings */
+
+private:
+
+  bool destroy_and_free;
+
+  InkHashTable *ht;
+  ink_mutex mutex;
+
+};                              /* End class MgmtHashTable */
+
+
+#endif /* _MGMT_HASH_TABLE_H */
diff --git a/mgmt/utils/MgmtSocket.h b/mgmt/utils/MgmtSocket.h
new file mode 100644
index 00000000..fd3d835d
--- /dev/null
+++ b/mgmt/utils/MgmtSocket.h
@@ -0,0 +1,199 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _MGMT_SOCKET_H_
+#define _MGMT_SOCKET_H_
+
+#include "ink_platform.h"
+
+//-------------------------------------------------------------------------
+// defines
+//-------------------------------------------------------------------------
+
+#define MGMT_MAX_TRANSIENT_ERRORS 64
+
+//-------------------------------------------------------------------------
+// transient_error
+//-------------------------------------------------------------------------
+
+inline bool
+mgmt_transient_error()
+{
+  bool transient = false;
+  transient = (errno == EINTR);
+#ifdef ENOMEM
+  transient = transient || (errno == ENOMEM);
+#endif
+#ifdef ENOBUF
+  transient = transient || (errno == ENOBUF);
+#endif
+  return transient;
+}
+
+//-------------------------------------------------------------------------
+// system calls (based on implementation from UnixSocketManager)
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// mgmt_accept
+//-------------------------------------------------------------------------
+
+inline int
+mgmt_accept(int s, struct sockaddr *addr, int *addrlen)
+{
+  int r, retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    r =::accept(s, addr, (socklen_t *) addrlen);
+    if (r >= 0)
+      return r;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return r;
+}
+
+//-------------------------------------------------------------------------
+// mgmt_fopen
+//-------------------------------------------------------------------------
+
+inline FILE *
+mgmt_fopen(const char *filename, const char *mode)
+{
+  FILE *f;
+  int retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    // no leak here as f will be returned if it is > 0
+    // coverity[overwrite_var]
+    f =::fopen(filename, mode);
+    if (f > 0)
+      return f;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return f;
+}
+
+//-------------------------------------------------------------------------
+// mgmt_open
+//-------------------------------------------------------------------------
+
+inline int
+mgmt_open(const char *path, int oflag)
+{
+  int r, retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    r =::open(path, oflag);
+    if (r >= 0)
+      return r;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return r;
+}
+
+//-------------------------------------------------------------------------
+// mgmt_open_mode
+//-------------------------------------------------------------------------
+
+inline int
+mgmt_open_mode(const char *path, int oflag, mode_t mode)
+{
+  int r, retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    r =::open(path, oflag, mode);
+    if (r >= 0)
+      return r;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return r;
+}
+
+//-------------------------------------------------------------------------
+// mgmt_select
+//-------------------------------------------------------------------------
+
+inline int
+mgmt_select(int nfds, fd_set * readfds, fd_set * writefds, fd_set * errorfds, struct timeval *timeout)
+{
+  // Note: Linux select() has slight different semantics.  From the
+  // man page: "On Linux, timeout is modified to reflect the amount of
+  // time not slept; most other implementations do not do this."
+  // Linux select() can also return ENOMEM, so we espeically need to
+  // protect the call with the transient error retry loop.
+  // Fortunately, because of the Linux timeout handling, our
+  // mgmt_select call will still timeout correctly, rather than
+  // possibly extending our timeout period by up to
+  // MGMT_MAX_TRANSIENT_ERRORS times.
+#if defined(linux)
+  int r, retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    r =::select(nfds, readfds, writefds, errorfds, timeout);
+    if (r >= 0)
+      return r;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return r;
+#else
+  return::select(nfds, readfds, writefds, errorfds, timeout);
+#endif
+}
+
+//-------------------------------------------------------------------------
+// mgmt_sendto
+//-------------------------------------------------------------------------
+
+inline int
+mgmt_sendto(int fd, void *buf, int len, int flags, struct sockaddr *to, int tolen)
+{
+  int r, retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    r =::sendto(fd, (char *) buf, len, flags, to, tolen);
+    if (r >= 0)
+      return r;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return r;
+}
+
+//-------------------------------------------------------------------------
+// mgmt_socket
+//-------------------------------------------------------------------------
+
+inline int
+mgmt_socket(int domain, int type, int protocol)
+{
+  int r, retries;
+  for (retries = 0; retries < MGMT_MAX_TRANSIENT_ERRORS; retries++) {
+    r =::socket(domain, type, protocol);
+    if (r >= 0)
+      return r;
+    if (!mgmt_transient_error())
+      break;
+  }
+  return r;
+}
+
+#endif // _MGMT_SOCKET_H_
diff --git a/mgmt/utils/MgmtUtils.cc b/mgmt/utils/MgmtUtils.cc
new file mode 100644
index 00000000..275ff3e8
--- /dev/null
+++ b/mgmt/utils/MgmtUtils.cc
@@ -0,0 +1,622 @@
+/** @file
+
+  Some utility and support functions for the management module.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "libts.h"
+#include "MgmtUtils.h"
+#include "Diags.h"
+
+#ifdef LOCAL_MANAGER
+// mgmt/Main.h
+#include "LocalManager.h"
+//#include "../Main.h"
+#else
+// proxy/Main.h
+#include "../../proxy/Main.h"
+#endif
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+// diags_init defined in mgmt/Main.cc.
+extern int diags_init;
+#endif
+
+static int use_syslog = 0;
+
+/* mgmt_use_syslog()
+ *
+ *    Called to indicate that the syslog should be used and
+ *       the log has been opened
+ */
+void
+mgmt_use_syslog()
+{
+  use_syslog = 1;
+}
+
+/*
+ * mgmt_readline(...)
+ *   Simple, inefficient, read line function. Takes a socket to read
+ * from, a char * to write into, and a max len to read. The newline
+ * is stripped.
+ *
+ * Returns:  num bytes read
+ *           -1  error
+ */
+int
+mgmt_readline(int soc, char *buf, int maxlen)
+{
+  int n, rc;
+  char c;
+
+  for (n = 1; n < maxlen; n++) {
+
+    if ((rc = read_socket(soc, &c, 1)) == 1) {
+
+      *buf++ = c;
+      if (c == '\n') {
+        --buf;
+        *buf = '\0';
+        if (*(buf - 1) == '\r') {
+          --buf;
+          *buf = '\0';
+        }
+        break;
+      }
+    } else if (rc == 0) {
+
+      if (n == 1) {             /* EOF */
+        return 0;
+      } else {
+        break;
+      }
+    } else {                    /* Error */
+      return -1;
+    }
+  }
+  return n;
+}                               /* End mgmt_readline */
+
+
+/*
+ * mgmt_writeline(...)
+ *   Simple, inefficient, write line function. Takes a soc to write to,
+ * a char * containing the data, and the number of bytes to write.
+ * It sends nbytes + 1 bytes worth of data, the + 1 being the newline
+ * character.
+ *
+ * Returns:    num bytes not written
+ *             -1  error
+ */
+int
+mgmt_writeline(int soc, const char *data, int nbytes)
+{
+  int nleft, nwritten, n;
+  const char *tmp = data;
+
+  nleft = nbytes;
+  while (nleft > 0) {
+    nwritten = write_socket(soc, tmp, nleft);
+    if (nwritten <= 0) {        /* Error or nothing written */
+      return nwritten;
+    }
+    nleft -= nwritten;
+    tmp += nwritten;
+  }
+
+  if ((n = write_socket(soc, "\n", 1)) <= 0) {      /* Terminating newline */
+    if (n < 0) {
+      return n;
+    } else {
+      return (nbytes - nleft);
+    }
+  }
+
+  return (nleft);               /* Paranoia */
+}                               /* End mgmt_writeline */
+
+/*
+ * mgmt_read_pipe()
+ * - Reads from a pipe
+ *
+ * Returns: bytes read
+ *          0 on EOF
+ *          -errno on error
+ */
+
+int
+mgmt_read_pipe(int fd, char *buf, int bytes_to_read)
+{
+  int err = 0;
+  char *p = buf;
+  int bytes_read = 0;
+  while (bytes_to_read > 0) {
+    err = read_socket(fd, p, bytes_to_read);
+    if (err == 0) {
+      return err;
+    } else if (err < 0) {
+      switch (errno) {
+      case EINTR:
+      case EAGAIN:
+#if defined(hpux)
+      case EWOULDBLOCK:
+#endif
+        mgmt_sleep_msec(1);
+        continue;
+      default:
+        return -errno;
+      }
+    }
+    bytes_to_read -= err;
+    bytes_read += err;
+    p += err;
+  }
+  /*
+     Ldone:
+   */
+  return bytes_read;
+}
+
+/*
+ * mgmt_write_pipe()
+ * - Writes to a pipe
+ *
+ * Returns: bytes written
+ *          0 on EOF
+ *          -errno on error
+ */
+
+int
+mgmt_write_pipe(int fd, char *buf, int bytes_to_write)
+{
+  int err = 0;
+  char *p = buf;
+  int bytes_written = 0;
+  while (bytes_to_write > 0) {
+    err = write_socket(fd, p, bytes_to_write);
+    if (err == 0) {
+      return err;
+    } else if (err < 0) {
+      switch (errno) {
+      case EINTR:
+      case EAGAIN:
+#if defined(hpux)
+      case EWOULDBLOCK:
+#endif
+        mgmt_sleep_msec(1);
+        continue;
+      default:
+        return -errno;
+      }
+    }
+    bytes_to_write -= err;
+    bytes_written += err;
+    p += err;
+  }
+  /*
+     Ldone:
+   */
+  return bytes_written;
+}
+
+
+
+void
+mgmt_blockAllSigs()
+{
+#if !defined(linux)
+  // Start by blocking all signals
+  sigset_t allSigs;             // Set of all signals
+  sigfillset(&allSigs);
+  if (ink_thread_sigsetmask(SIG_SETMASK, &allSigs, NULL) < 0) {
+    perror("ink_thread_sigsetmask");
+  }
+#endif
+}
+
+/*
+ * mgmt_log(...)
+ *   Really just a print wrapper, function takes a string and outputs the
+ * result to log. Written so that we could turn off all output or at least
+ * better control it.
+ */
+void
+mgmt_log(FILE * log, const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  va_start(ap, message_format);
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  if (diags_init) {
+    diags->print_va(NULL, DL_Note, NULL, message_format, ap);
+  } else {
+#endif
+
+    if (use_syslog) {
+      snprintf(extended_format, sizeof(extended_format), "log ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      syslog(LOG_WARNING, "%s", message);
+    } else {
+      snprintf(extended_format, sizeof(extended_format), "[E. Mgmt] log ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      ink_assert(fwrite(message, strlen(message), 1, log) == 1);
+    }
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  }
+#endif
+
+  va_end(ap);
+  return;
+}                               /* End mgmt_log */
+
+void
+mgmt_log(const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  va_start(ap, message_format);
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  if (diags_init) {
+    diags->print_va(NULL, DL_Note, NULL, message_format, ap);
+  } else {
+#endif
+
+    if (use_syslog) {
+      snprintf(extended_format, sizeof(extended_format), "log ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      syslog(LOG_WARNING, "%s", message);
+    } else {
+      snprintf(extended_format, sizeof(extended_format), "[E. Mgmt] log ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      ink_assert(fwrite(message, strlen(message), 1, stderr) == 1);
+    }
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  }
+#endif
+
+  va_end(ap);
+  return;
+}                               /* End mgmt_log */
+
+
+/*
+ * mgmt_log(...)
+ *   Same as above, but intended for errors.
+ */
+void
+mgmt_elog(FILE * log, const int lerrno, const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  va_start(ap, message_format);
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  if (diags_init) {
+    diags->print_va(NULL, DL_Error, NULL, message_format, ap);
+    if (lerrno != 0) {
+      diags->print(NULL, DTA(DL_Error), " (last system error %d: %s)\n", lerrno, strerror(lerrno));
+    }
+  } else {
+#endif
+    if (use_syslog) {
+      snprintf(extended_format, sizeof(extended_format), "ERROR ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      syslog(LOG_ERR, "%s", message);
+      if (lerrno != 0) {
+        syslog(LOG_ERR, " (last system error %d: %s)", lerrno, strerror(lerrno));
+      }
+    } else {
+      snprintf(extended_format, sizeof(extended_format), "[E. Mgmt] ERROR ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      ink_assert(fwrite(message, strlen(message), 1, log) == 1);
+      if (lerrno != 0) {
+        snprintf(message, sizeof(message), "(last system error %d: %s)", lerrno, strerror(lerrno));
+        ink_assert(fwrite(message, strlen(message), 1, log) == 1);
+      }
+    }
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  }
+#endif
+  va_end(ap);
+
+  return;
+}                               /* End mgmt_elog */
+
+
+void
+mgmt_elog(const int lerrno, const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  va_start(ap, message_format);
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  if (diags_init) {
+    diags->print_va(NULL, DL_Error, NULL, message_format, ap);
+    if (lerrno != 0) {
+      diags->print(NULL, DTA(DL_Error), " (last system error %d: %s)\n", lerrno, strerror(lerrno));
+    }
+  } else {
+#endif
+
+    if (use_syslog) {
+      snprintf(extended_format, sizeof(extended_format), "ERROR ==> %s", message_format);
+      vsprintf(message, extended_format, ap);
+      syslog(LOG_ERR, "%s", message);
+      if (lerrno != 0) {
+        syslog(LOG_ERR, " (last system error %d: %s)", lerrno, strerror(lerrno));
+      }
+    } else {
+      snprintf(extended_format, sizeof(extended_format), "Manager ERROR: %s", message_format);
+      vsprintf(message, extended_format, ap);
+      ink_assert(fwrite(message, strlen(message), 1, stderr) == 1);
+      if (lerrno != 0) {
+        snprintf(message, sizeof(message), "(last system error %d: %s)", lerrno, strerror(lerrno));
+        ink_assert(fwrite(message, strlen(message), 1, stderr) == 1);
+      }
+    }
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  }
+#endif
+  va_end(ap);
+  return;
+}                               /* End mgmt_elog */
+
+
+/*
+ * mgmt_fatal(...)
+ *   Same as above, but for fatal errors. Logs error, calls perror, and
+ * asserts false.
+ */
+void
+mgmt_fatal(FILE * log, const int lerrno, const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  va_start(ap, message_format);
+
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  if (diags_init) {
+    diags->print_va(NULL, DL_Fatal, NULL, message_format, ap);
+    if (lerrno != 0) {
+      diags->print(NULL, DTA(DL_Fatal), " (last system error %d: %s)\n", lerrno, strerror(lerrno));
+    }
+  } else {
+#endif
+
+    snprintf(extended_format, sizeof(extended_format), "FATAL ==> %s", message_format);
+    vsprintf(message, extended_format, ap);
+
+    ink_assert(fwrite(message, strlen(message), 1, log) == 1);
+
+    if (use_syslog) {
+      syslog(LOG_ERR, "%s", message);
+    }
+
+    if (lerrno != 0) {
+      fprintf(stderr, "[E. Mgmt] last system error %d: %s", lerrno, strerror(lerrno));
+      if (use_syslog) {
+        syslog(LOG_ERR, " (last system error %d: %s)", lerrno, strerror(lerrno));
+      }
+    }
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  }
+#endif
+
+  va_end(ap);
+
+  mgmt_cleanup();
+  _exit(1);
+}                               /* End mgmt_fatal */
+
+
+
+void
+mgmt_fatal(const int lerrno, const char *message_format, ...)
+{
+  va_list ap;
+  char extended_format[4096], message[4096];
+
+  va_start(ap, message_format);
+
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  if (diags_init) {
+    diags->print_va(NULL, DL_Fatal, NULL, message_format, ap);
+    if (lerrno != 0) {
+      diags->print(NULL, DTA(DL_Fatal), " (last system error %d: %s)\n", lerrno, strerror(lerrno));
+    }
+  } else {
+#endif
+
+    snprintf(extended_format, sizeof(extended_format), "FATAL ==> %s", message_format);
+    vsprintf(message, extended_format, ap);
+
+    ink_assert(fwrite(message, strlen(message), 1, stderr) == 1);
+
+    if (use_syslog) {
+      syslog(LOG_ERR, "%s", message);
+    }
+
+    if (lerrno != 0) {
+      fprintf(stderr, "[E. Mgmt] last system error %d: %s", lerrno, strerror(lerrno));
+
+      if (use_syslog) {
+        syslog(LOG_ERR, " (last system error %d: %s)", lerrno, strerror(lerrno));
+      }
+    }
+#if defined(LOCAL_MANAGER) || defined(PROCESS_MANAGER)
+  }
+#endif
+
+  va_end(ap);
+
+  mgmt_cleanup();
+  _exit(1);
+}                               /* End mgmt_fatal */
+
+void
+mgmt_cleanup()
+{
+#if defined(LOCAL_MANAGER)
+  if (lmgmt != NULL) {
+    lmgmt->mgmtShutdown(true);
+  }
+#endif
+}
+
+static inline int
+get_interface_mtu(int sock_fd, struct ifreq *ifr)
+{
+  if (ioctl(sock_fd, SIOCGIFMTU, ifr) < 0) {
+    mgmt_log(stderr, "[getAddrForIntr] Unable to obtain MTU for " "interface '%s'", ifr->ifr_name);
+    return 0;
+  } else
+#if defined(solaris) || defined(hpux)
+    return ifr->ifr_metric;
+#else
+    return ifr->ifr_mtu;
+#endif
+}
+
+bool
+mgmt_getAddrForIntr(char *intrName, sockaddr* addr, int *mtu)
+{
+  bool found = false;
+
+  if (intrName == NULL) {
+    return false;
+  }
+
+  int fakeSocket;               // a temporary socket to pass to ioctl
+  struct ifconf ifc;            // ifconf information
+  char *ifbuf;                  // ifconf buffer
+  struct ifreq *ifr, *ifend;    // pointer to individual inferface info
+  int lastlen;
+  int len;
+
+  // Prevent UMRs
+  memset(addr, 0, sizeof(struct in_addr));
+
+  if ((fakeSocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+    mgmt_fatal(stderr, errno, "[getAddrForIntr] Unable to create socket\n");
+  }
+  // INKqa06739
+  // Fetch the list of network interfaces
+  // . from Stevens, Unix Network Prog., pg 434-435
+  ifbuf = 0;
+  lastlen = 0;
+  len = 128 * sizeof(struct ifreq);     // initial buffer size guess
+  for (;;) {
+    ifbuf = (char *)ats_malloc(len);
+    memset(ifbuf, 0, len);      // prevent UMRs
+    ifc.ifc_len = len;
+    ifc.ifc_buf = ifbuf;
+    if (ioctl(fakeSocket, SIOCGIFCONF, &ifc) < 0) {
+      if (errno != EINVAL || lastlen != 0) {
+        mgmt_fatal(stderr, errno, "[getAddrForIntr] Unable to read network interface configuration\n");
+      }
+    } else {
+      if (ifc.ifc_len == lastlen) {
+        break;
+      }
+      lastlen = ifc.ifc_len;
+    }
+    len *= 2;
+    ats_free(ifbuf);
+  }
+
+  ifr = ifc.ifc_req;
+  found = false;
+  // Loop through the list of interfaces
+  ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
+  for (ifr = ifc.ifc_req; ifr < ifend;) {
+    if (ifr->ifr_addr.sa_family == AF_INET && strcmp(ifr->ifr_name, intrName) == 0) {
+      // Get the address of the interface
+      if (ioctl(fakeSocket, SIOCGIFADDR, (char *) ifr) < 0) {
+        mgmt_log(stderr, "[getAddrForIntr] Unable obtain address for network interface %s\n", intrName);
+      } else {
+        // Only look at the address if it an internet address
+        if (ifr->ifr_ifru.ifru_addr.sa_family == AF_INET) {
+          ats_ip_copy(addr, &ifr->ifr_ifru.ifru_addr);
+          found = true;
+
+          if (mtu)
+            *mtu = get_interface_mtu(fakeSocket, ifr);
+
+          break;
+        } else {
+          mgmt_log(stderr, "[getAddrForIntr] Interface %s is not configured for IP.\n", intrName);
+        }
+      }
+    }
+#if defined(freebsd) || defined(darwin)
+    ifr = (struct ifreq *) ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len);
+#else
+    ifr = (struct ifreq *) (((char *) ifr) + sizeof(*ifr));
+#endif
+  }
+  ats_free(ifbuf);
+  close(fakeSocket);
+
+  return found;
+}                               /* End mgmt_getAddrForIntr */
+
+/*
+ * mgmt_sortipaddrs(...)
+ *   Routine to sort and pick smallest ip addr.
+ */
+struct in_addr *
+mgmt_sortipaddrs(int num, struct in_addr **list)
+{
+  int i = 0;
+  unsigned long min;
+  struct in_addr *entry, *tmp;
+
+  min = (list[0])->s_addr;
+  entry = list[0];
+  while (i < num && (tmp = (struct in_addr *) list[i]) != NULL) {
+    i++;
+    if (min > tmp->s_addr) {
+      min = tmp->s_addr;
+      entry = tmp;
+    }
+  }
+  return entry;
+}                               /* End mgmt_sortipaddrs */
+
+void
+mgmt_sleep_sec(int seconds)
+{
+  sleep(seconds);
+}
+
+void
+mgmt_sleep_msec(int msec)
+{
+  usleep(msec * 1000);
+}
diff --git a/mgmt/utils/MgmtUtils.h b/mgmt/utils/MgmtUtils.h
new file mode 100644
index 00000000..cad15e27
--- /dev/null
+++ b/mgmt/utils/MgmtUtils.h
@@ -0,0 +1,70 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************
+ *
+ * MgmtUtils.h
+ *   Some utility and support functions for the management module.
+ *
+ * $Date: 2007-10-05 16:56:46 $
+ *
+ *
+ */
+
+#ifndef _MGMT_UTILS_H
+#define _MGMT_UTILS_H
+
+#include "ink_platform.h"
+#include "Diags.h"
+
+#include "P_RecCore.h"
+
+void mgmt_blockAllSigs();
+
+int mgmt_readline(int fd, char *buf, int maxlen);
+int mgmt_writeline(int fd, const char *data, int nbytes);
+
+int mgmt_read_pipe(int fd, char *buf, int bytes_to_read);
+int mgmt_write_pipe(int fd, char *buf, int bytes_to_write);
+
+void mgmt_use_syslog();
+void mgmt_cleanup();
+
+struct in_addr *mgmt_sortipaddrs(int num, struct in_addr **list);
+bool mgmt_getAddrForIntr(char *intrName, sockaddr* addr, int *mtu = 0);
+
+/* the following functions are all DEPRECATED.  The Diags
+   interface should be used exclusively in the future */
+void mgmt_log(FILE * log, const char *message_format, ...);
+void mgmt_elog(FILE * log, const int lerrno, const char *message_format, ...);
+void mgmt_fatal(FILE * log, const int lerrno, const char *message_format, ...);
+void mgmt_log(const char *message_format, ...);
+void mgmt_elog(const int lerrno, const char *message_format, ...);
+void mgmt_fatal(const int lerrno, const char *message_format, ...);
+void mgmt_log_output(FILE * stdio_or_null, DiagsLevel type, const char *format, ...);
+void mgmt_log_output_va(FILE * stdio_or_null, DiagsLevel type, const char *format, va_list ap);
+
+void mgmt_sleep_sec(int);
+void mgmt_sleep_msec(int);
+
+#endif /* _MGMT_UTILS_H */
diff --git a/mgmt/utils/WebMgmtUtils.cc b/mgmt/utils/WebMgmtUtils.cc
new file mode 100644
index 00000000..ed82b091
--- /dev/null
+++ b/mgmt/utils/WebMgmtUtils.cc
@@ -0,0 +1,1377 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "LocalManager.h"
+#include "MgmtUtils.h"
+#include "WebMgmtUtils.h"
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+
+/****************************************************************************
+ *
+ *  WebMgmtUtils.cc - Functions for interfacing to management records
+ *
+ *
+ *
+ ****************************************************************************/
+
+
+// bool varSetFromStr(const char*, const char* )
+//
+// Sets the named local manager variable from the value string
+// passed in.  Does the appropriate type conversion on
+// value string to get it to the type of the local manager
+// variable
+//
+//  returns true if the variable was successfully set
+//   and false otherwise
+//
+bool
+varSetFromStr(const char *varName, const char *value)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int err = REC_ERR_FAIL;
+  RecData data;
+
+  memset(&data, 0, sizeof(RecData));
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+  if (err != REC_ERR_OKAY) {
+    return found;
+  }
+  // Use any empty string if we get a NULL so
+  //  sprintf does puke.  However, we need to
+  //  switch this back to NULL for STRING types
+  if (value == NULL) {
+    value = "";
+  }
+
+  switch (varDataType) {
+  case RECD_INT:
+    if (sscanf(value, "%" PRId64 "", &data.rec_int) == 1) {
+      RecSetRecordInt((char *) varName, data.rec_int);
+    } else {
+      found = false;
+    }
+    break;
+  case RECD_COUNTER:
+    if (sscanf(value, "%" PRId64 "", &data.rec_counter) == 1) {
+      RecSetRecordCounter((char *) varName, data.rec_counter);
+    } else {
+      found = false;
+    }
+    break;
+  case RECD_FLOAT:
+    // coverity[secure_coding]
+    if (sscanf(value, "%f", &data.rec_float) == 1) {
+      RecSetRecordFloat((char *) varName, data.rec_float);
+    } else {
+      found = false;
+    }
+    break;
+  case RECD_STRING:
+    if (*value == '\0') {
+      RecSetRecordString((char *) varName, NULL);
+    } else {
+      RecSetRecordString((char *) varName, (char *) value);
+    }
+    break;
+  case RECD_NULL:
+  default:
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+// bool varSetFloat(const char* varName, RecFloat value)
+//
+//  Sets the variable specifed by varName to value.  varName
+//   must be a RecFloat variable.  No conversion is done for
+//   other types unless convert is set to ture. In the case
+//   of convert is ture, type conversion is perform if applicable.
+//   By default, convert is set to be false and can be overrided
+//   when the function is called.
+//
+bool
+varSetFloat(const char *varName, RecFloat value, bool convert)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int err = REC_ERR_FAIL;
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+  if (err != REC_ERR_OKAY) {
+    return found;
+  }
+
+  switch (varDataType) {
+  case RECD_FLOAT:
+    RecSetRecordFloat((char *) varName, (RecFloat) value);
+    break;
+  case RECD_INT:
+    if (convert) {
+      value += 0.5;             // rounding up
+      RecSetRecordInt((char *) varName, (RecInt) value);
+      break;
+    }
+  case RECD_COUNTER:
+    if (convert) {
+      RecSetRecordCounter((char *) varName, (RecCounter) value);
+      break;
+    }
+  case RECD_STRING:
+  case RECD_NULL:
+  default:
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+// bool varSetCounter(const char* varName, RecCounter value)
+//
+//  Sets the variable specifed by varName to value.  varName
+//   must be an RecCounter variable.  No conversion is done for
+//   other types unless convert is set to ture. In the case
+//   of convert is ture, type conversion is perform if applicable.
+//   By default, convert is set to be false and can be overrided
+//   when the function is called.
+//
+bool
+varSetCounter(const char *varName, RecCounter value, bool convert)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int err = REC_ERR_FAIL;
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+  if (err != REC_ERR_OKAY) {
+    return found;
+  }
+
+  switch (varDataType) {
+  case RECD_COUNTER:
+    RecSetRecordCounter((char *) varName, (RecCounter) value);
+    break;
+  case RECD_INT:
+    if (convert) {
+      RecSetRecordInt((char *) varName, (RecInt) value);
+      break;
+    }
+  case RECD_FLOAT:
+    if (convert) {
+      RecSetRecordFloat((char *) varName, (RecFloat) value);
+      break;
+    }
+  case RECD_STRING:
+  case RECD_NULL:
+  default:
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+// bool varSetInt(const char* varName, RecInt value)
+//
+//  Sets the variable specifed by varName to value.  varName
+//   must be an RecInt variable.  No conversion is done for
+//   other types unless convert is set to ture. In the case
+//   of convert is ture, type conversion is perform if applicable.
+//   By default, convert is set to be false and can be overrided
+//   when the function is called.
+//
+bool
+varSetInt(const char *varName, RecInt value, bool convert)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int err = REC_ERR_FAIL;
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+  if (err != REC_ERR_OKAY) {
+    return found;
+  }
+
+  switch (varDataType) {
+  case RECD_INT:
+    RecSetRecordInt((char *) varName, (RecInt) value);
+    break;
+  case RECD_COUNTER:
+    if (convert) {
+      RecSetRecordCounter((char *) varName, (RecCounter) value);
+      break;
+    }
+  case RECD_FLOAT:
+    if (convert) {
+      RecSetRecordFloat((char *) varName, (RecFloat) value);
+      break;
+    }
+  case RECD_STRING:
+  case RECD_NULL:
+  default:
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+// bool varSetData(RecDataT varType, const char *varName, RecData value)
+//
+//  Sets the variable specifed by varName to value. value and varName
+//   must be varType variables.
+//
+bool
+varSetData(RecDataT varType, const char *varName, RecData value)
+{
+  int err = REC_ERR_FAIL;
+
+  switch (varType) {
+  case RECD_INT:
+    err = RecSetRecordInt((char *)varName, value.rec_int);
+    break;
+  case RECD_COUNTER:
+    err = RecSetRecordCounter((char *)varName, value.rec_counter);
+    break;
+  case RECD_FLOAT:
+    err = RecSetRecordFloat((char *)varName, value.rec_float);
+    break;
+  default:
+    Fatal("unsupport type:%d\n", varType);
+  }
+  return (err == REC_ERR_OKAY);
+}
+
+// bool varDataFromName(RecDataT varType, const char *varName, RecData *value)
+//
+//   Sets the *value to value of the varName according varType.
+//
+//  return true if bufVal was succefully set
+//    and false otherwise
+//
+bool
+varDataFromName(RecDataT varType, const char *varName, RecData *value)
+{
+  int err;
+
+  err = RecGetRecord_Xmalloc(varName, varType, value, true);
+
+  return (err == REC_ERR_OKAY);
+}
+
+
+// bool varCounterFromName (const char*, RecFloat* )
+//
+//   Sets the *value to value of the varName.
+//
+//  return true if bufVal was succefully set
+//    and false otherwise
+//
+bool
+varCounterFromName(const char *varName, RecCounter * value)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int err = REC_ERR_FAIL;
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+
+  if (err == REC_ERR_FAIL) {
+    return false;
+  }
+
+  switch (varDataType) {
+  case RECD_INT:{
+      RecInt tempInt = 0;
+      RecGetRecordInt((char *) varName, &tempInt);
+      *value = (RecCounter) tempInt;
+      break;
+    }
+  case RECD_COUNTER:{
+      *value = 0;
+      RecGetRecordCounter((char *) varName, value);
+      break;
+    }
+  case RECD_FLOAT:{
+      RecFloat tempFloat = 0.0;
+      RecGetRecordFloat((char *) varName, &tempFloat);
+      *value = (RecCounter) tempFloat;
+      break;
+    }
+  case RECD_STRING:
+  case RECD_NULL:
+  default:
+    *value = -1;
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+// bool varFloatFromName (const char*, RecFloat* )
+//
+//   Sets the *value to value of the varName.
+//
+//  return true if bufVal was succefully set
+//    and false otherwise
+//
+bool
+varFloatFromName(const char *varName, RecFloat * value)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+
+  int err = REC_ERR_FAIL;
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+
+  if (err == REC_ERR_FAIL) {
+    return false;
+  }
+
+  switch (varDataType) {
+  case RECD_INT:{
+      RecInt tempInt = 0;
+      RecGetRecordInt((char *) varName, &tempInt);
+      *value = (RecFloat) tempInt;
+      break;
+    }
+  case RECD_COUNTER:{
+      RecCounter tempCounter = 0;
+      RecGetRecordCounter((char *) varName, &tempCounter);
+      *value = (RecFloat) tempCounter;
+      break;
+    }
+  case RECD_FLOAT:{
+      *value = 0.0;
+      RecGetRecordFloat((char *) varName, value);
+      break;
+    }
+  case RECD_STRING:
+  case RECD_NULL:
+  default:
+    *value = -1.0;
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+// bool varIntFromName (const char*, RecInt* )
+//
+//   Sets the *value to value of the varName.
+//
+//  return true if bufVal was succefully set
+//    and false otherwise
+//
+bool
+varIntFromName(const char *varName, RecInt * value)
+{
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int err = REC_ERR_FAIL;
+
+  err = RecGetRecordDataType((char *) varName, &varDataType);
+
+  if (err != REC_ERR_OKAY) {
+    return false;
+  }
+
+  switch (varDataType) {
+  case RECD_INT:{
+      *value = 0;
+      RecGetRecordInt((char *) varName, value);
+      break;
+    }
+  case RECD_COUNTER:{
+      RecCounter tempCounter = 0;
+      RecGetRecordCounter((char *) varName, &tempCounter);
+      *value = (RecInt) tempCounter;
+      break;
+    }
+  case RECD_FLOAT:{
+      RecFloat tempFloat = 0.0;
+      RecGetRecordFloat((char *) varName, &tempFloat);
+      *value = (RecInt) tempFloat;
+      break;
+    }
+  case RECD_STRING:
+  case RECD_NULL:
+  default:
+    *value = -1;
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+
+// void percentStrFromFloat(MgmtFloat, char* bufVal)
+//
+//  Converts a float to a percent string
+//
+//     bufVal must point to adequate space a la sprintf
+//
+void
+percentStrFromFloat(RecFloat val, char *bufVal)
+{
+  int percent;
+
+  percent = (int) ((val * 100.0) + 0.5);
+  snprintf(bufVal, 4, "%d%%", percent);
+}
+
+// void commaStrFromInt(RecInt bytes, char* bufVal)
+//   Converts an Int to string with commas in it
+//
+//     bufVal must point to adequate space a la sprintf
+//
+void
+commaStrFromInt(RecInt bytes, char *bufVal)
+{
+  int len;
+  int numCommas;
+  char *curPtr;
+
+  sprintf(bufVal, "%" PRId64 "", bytes);
+  len = strlen(bufVal);
+
+  // The string is too short to need commas
+  if (len < 4) {
+    return;
+  }
+
+  numCommas = (len - 1) / 3;
+  curPtr = bufVal + (len + numCommas);
+  *curPtr = '\0';
+  curPtr--;
+
+  for (int i = 0; i < len; i++) {
+    *curPtr = bufVal[len - 1 - i];
+
+    if ((i + 1) % 3 == 0 && curPtr != bufVal) {
+      curPtr--;
+      *curPtr = ',';
+    }
+    curPtr--;
+  }
+
+  ink_assert(curPtr + 1 == bufVal);
+}
+
+// void MbytesFromInt(RecInt bytes, char* bufVal)
+//     Converts into a string in units of megabytes
+//      No unit specification is added
+//
+//     bufVal must point to adequate space a la sprintf
+//
+void
+MbytesFromInt(RecInt bytes, char *bufVal)
+{
+  RecInt mBytes = bytes / 1048576;
+
+  sprintf(bufVal, "%" PRId64 "", mBytes);
+}
+
+// void bytesFromInt(RecInt bytes, char* bufVal)
+//
+//    Converts mgmt into a string with one of
+//       GB, MB, KB, B units
+//
+//     bufVal must point to adequate space a la sprintf
+void
+bytesFromInt(RecInt bytes, char *bufVal)
+{
+  const int64_t gb = 1073741824;
+  const long int mb = 1048576;
+  const long int kb = 1024;
+  int bytesP;
+  double unitBytes;
+
+  if (bytes >= gb) {
+    unitBytes = bytes / (double) gb;
+    snprintf(bufVal, 15, "%.1f GB", unitBytes);
+  } else {
+    // Reduce the precision of the bytes parameter
+    //   because we know that it less than 1GB which
+    //   has plenty of precision for a regular int
+    //   and saves from 64 bit arithmetic which may
+    //   be expensive on some processors
+    bytesP = (int) bytes;
+    if (bytesP >= mb) {
+      unitBytes = bytes / (double) mb;
+      snprintf(bufVal, 15, "%.1f MB", unitBytes);
+    } else if (bytesP >= kb) {
+      unitBytes = bytes / (double) kb;
+      snprintf(bufVal, 15, "%.1f KB", unitBytes);
+    } else {
+      snprintf(bufVal, 15, "%d", bytesP);
+    }
+  }
+}
+
+// bool varStrFromName (const char*, char*, int)
+//
+//   Sets the bufVal string to the value of the local manager
+//     named by varName.  bufLen is size of bufVal
+//
+//  return true if bufVal was succefully set
+//    and false otherwise
+//
+//  EVIL ALERT: overviewRecord::varStrFromName is extremely
+//    similar to this function except in how it gets it's
+//    data.  Changes to this fuction must be propogated
+//    to its twin.  Cut and Paste sucks but there is not
+//    an easy way to merge the functions
+//
+bool
+varStrFromName(const char *varNameConst, char *bufVal, int bufLen)
+{
+  char *varName = NULL;
+  RecDataT varDataType = RECD_NULL;
+  bool found = true;
+  int varNameLen = 0;
+  char formatOption = '\0';
+  RecData data;
+  int err = REC_ERR_FAIL;
+
+  memset(&data, 0, sizeof(RecData));
+
+  // Check to see if there is a \ option on the end of variable
+  //   \ options indicate that we need special formatting
+  //   of the results.  Supported \ options are
+  //
+  ///  b - bytes.  Ints and Counts only.  Amounts are
+  //       transformed into one of GB, MB, KB, or B
+  //
+  varName = ats_strdup(varNameConst);
+  varNameLen = strlen(varName);
+  if (varNameLen > 3 && varName[varNameLen - 2] == '\\') {
+    formatOption = varName[varNameLen - 1];
+
+    // Now that we know the format option, terminate the string
+    //   to make the option disappear
+    varName[varNameLen - 2] = '\0';
+
+    // Return not found for unknown format options
+    if (formatOption != 'b' && formatOption != 'm' && formatOption != 'c' && formatOption != 'p') {
+      ats_free(varName);
+      return false;
+    }
+  }
+
+  err = RecGetRecordDataType(varName, &varDataType);
+  if (err == REC_ERR_FAIL) {
+    ats_free(varName);
+    return false;
+  }
+
+  switch (varDataType) {
+  case RECD_INT:
+    RecGetRecordInt(varName, &data.rec_int);
+    if (formatOption == 'b') {
+      bytesFromInt(data.rec_int, bufVal);
+    } else if (formatOption == 'm') {
+      MbytesFromInt(data.rec_int, bufVal);
+    } else if (formatOption == 'c') {
+      commaStrFromInt(data.rec_int, bufVal);
+    } else {
+      snprintf(bufVal, bufLen, "%" PRId64 "", data.rec_int);
+    }
+    break;
+
+  case RECD_COUNTER:
+    RecGetRecordCounter(varName, &data.rec_counter);
+    if (formatOption == 'b') {
+      bytesFromInt((MgmtInt) data.rec_counter, bufVal);
+    } else if (formatOption == 'm') {
+      MbytesFromInt((MgmtInt) data.rec_counter, bufVal);
+    } else if (formatOption == 'c') {
+      commaStrFromInt(data.rec_counter, bufVal);
+    } else {
+      snprintf(bufVal, bufLen, "%" PRId64 "", data.rec_counter);
+    }
+    break;
+  case RECD_FLOAT:
+    RecGetRecordFloat(varName, &data.rec_float);
+    if (formatOption == 'p') {
+      percentStrFromFloat(data.rec_float, bufVal);
+    } else {
+      snprintf(bufVal, bufLen, "%.2f", data.rec_float);
+    }
+    break;
+  case RECD_STRING:
+    RecGetRecordString_Xmalloc(varName, &data.rec_string);
+    if (data.rec_string == NULL) {
+      bufVal[0] = '\0';
+    } else if (strlen(data.rec_string) < (size_t) (bufLen - 1)) {
+      ink_strlcpy(bufVal, data.rec_string, bufLen);
+    } else {
+      ink_strlcpy(bufVal, data.rec_string, bufLen);
+    }
+    ats_free(data.rec_string);
+    break;
+  default:
+    found = false;
+    break;
+  }
+
+  ats_free(varName);
+  return found;
+}
+
+// bool MgmtData::setFromName(const char*)
+//
+//    Fills in class variables from the given
+//      variable name
+//
+//    Returns true if the information could be set
+//     and false otherwise
+//
+bool
+MgmtData::setFromName(const char *varName)
+{
+  bool found = true;
+  int err;
+
+  err = RecGetRecordDataType((char *) varName, &this->type);
+
+  if (err == REC_ERR_FAIL) {
+    return found;
+  }
+
+  switch (this->type) {
+  case RECD_INT:
+    RecGetRecordInt((char *) varName, &this->data.rec_int);
+    break;
+  case RECD_COUNTER:
+    RecGetRecordCounter((char *) varName, &this->data.rec_counter);
+    break;
+  case RECD_FLOAT:
+    RecGetRecordFloat((char *) varName, &this->data.rec_float);
+    break;
+  case RECD_STRING:
+    RecGetRecordString_Xmalloc((char *) varName, &this->data.rec_string);
+    break;
+  case RECD_NULL:
+  default:
+    found = false;
+    break;
+  }
+
+  return found;
+}
+
+MgmtData::MgmtData()
+{
+  type = RECD_NULL;
+  memset(&data, 0, sizeof(RecData));
+}
+
+MgmtData::~MgmtData()
+{
+  if (type == RECD_STRING)
+    ats_free(data.rec_string);
+}
+
+// MgmtData::compareFromString(const char* str, strLen)
+//
+//  Compares the value of string converted to
+//    data type of this_>type with value
+//    held in this->data
+//
+bool
+MgmtData::compareFromString(const char *str)
+{
+  RecData compData;
+  bool compare = false;
+  float floatDiff;
+
+  switch (this->type) {
+  case RECD_INT:
+    // TODO: Add SI decimal multipliers rule ?
+    if (str && recordRegexCheck("^[0-9]+$", str)) {
+      compData.rec_int = ink_atoi64(str);
+      if (data.rec_int == compData.rec_int) {
+        compare = true;
+      }
+    }
+    break;
+  case RECD_COUNTER:
+    if (str && recordRegexCheck("^[0-9]+$", str)) {
+      compData.rec_counter = ink_atoi64(str);
+      if (data.rec_counter == compData.rec_counter) {
+        compare = true;
+      }
+    }
+    break;
+  case RECD_FLOAT:
+    compData.rec_float = atof(str);
+    // HACK - There are some rounding problems with
+    //   floating point numbers so say we have a match if there difference
+    //   is small
+    floatDiff = data.rec_float - compData.rec_float;
+    if (floatDiff > -0.001 && floatDiff < 0.001) {
+      compare = true;
+    }
+    break;
+  case RECD_STRING:
+    if (str == NULL || *str == '\0') {
+      if (data.rec_string == NULL) {
+        compare = true;
+      }
+    } else {
+      if ((data.rec_string != NULL) && (strcmp(str, data.rec_string) == 0)) {
+        compare = true;
+      }
+    }
+    break;
+  case RECD_NULL:
+  default:
+    compare = false;
+    break;
+  }
+
+  return compare;
+}
+
+// void RecDataT varType(const char* varName)
+//
+//   Simply return the variable type
+//
+RecDataT
+varType(const char *varName)
+{
+  RecDataT data_type;
+  int err;
+
+  err = RecGetRecordDataType((char *) varName, &data_type);
+
+  if (err == REC_ERR_FAIL) {
+    return RECD_NULL;
+  }
+
+  Debug("RecOp", "[varType] %s is of type %d\n", varName, data_type);
+  return data_type;
+}
+
+
+// InkHashTable* processFormSubmission(char* submission)
+//
+//  A generic way to handle a HTML form submission.
+//  Creates a hash table with name value pairs
+//
+//  CALLEE must deallocate the returned hash table with
+//   ink_hash_table_destroy_and_xfree_values(InkHashTable *ht_ptr)
+//
+
+InkHashTable *
+processFormSubmission(char *submission)
+{
+  InkHashTable *nameVal = ink_hash_table_create(InkHashTableKeyType_String);
+  Tokenizer updates("&\n\r");
+  Tokenizer pair("=");
+  int numUpdates;
+  char *name;
+  char *value;
+  char *submission_copy;
+  int pairNum;
+
+  if (submission == NULL) {
+    ink_hash_table_destroy(nameVal);
+    return NULL;
+  }
+
+  submission_copy = ats_strdup(submission);
+  numUpdates = updates.Initialize(submission_copy, SHARE_TOKS);
+
+  for (int i = 0; i < numUpdates; i++) {
+    pairNum = pair.Initialize(updates[i]);
+
+    // We should have gotten either either 1 or 2 tokens
+    //    One token indicates an variable being set to
+    //    blank.  Two indicates the variable being set to
+    //    a value.  If the submission is invalid, just forget
+    //    about it.
+    if (pairNum == 1 || pairNum == 2) {
+      name = ats_strdup(pair[0]);
+      substituteUnsafeChars(name);
+
+      // If the value is blank, store it as a null
+      if (pairNum == 1) {
+        value = NULL;
+      } else {
+        value = ats_strdup(pair[1]);
+        substituteUnsafeChars(value);
+      }
+
+      ink_hash_table_insert(nameVal, name, value);
+      ats_free(name);
+    }
+  }
+  ats_free(submission_copy);
+
+  return nameVal;
+}
+
+// InkHashTable* processFormSubmission_noSubstitute(char* submission)
+//
+//  A generic way to handle a HTML form submission.
+//  Creates a hash table with name value pairs
+//
+//  CALLEE must deallocate the returned hash table with
+//   ink_hash_table_destroy_and_xfree_values(InkHashTable *ht_ptr)
+//
+//  Note: This function will _not_ substituteUnsafeChars()
+InkHashTable *
+processFormSubmission_noSubstitute(char *submission)
+{
+
+  InkHashTable *nameVal = ink_hash_table_create(InkHashTableKeyType_String);
+  Tokenizer updates("&\n\r");
+  Tokenizer pair("=");
+  int numUpdates;
+  char *name;
+  char *value;
+  char *submission_copy;
+  int pairNum;
+
+  if (submission == NULL) {
+    ink_hash_table_destroy(nameVal);
+    return NULL;
+  }
+
+  submission_copy = ats_strdup(submission);
+  numUpdates = updates.Initialize(submission_copy, SHARE_TOKS);
+
+  for (int i = 0; i < numUpdates; i++) {
+    pairNum = pair.Initialize(updates[i]);
+
+    // We should have gotten either either 1 or 2 tokens
+    //    One token indicates an variable being set to
+    //    blank.  Two indicates the variable being set to
+    //    a value.  If the submission is invalid, just forget
+    //    about it.
+    if (pairNum == 1 || pairNum == 2) {
+      name = ats_strdup(pair[0]);
+
+      // If the value is blank, store it as a null
+      if (pairNum == 1) {
+        value = NULL;
+      } else {
+        value = ats_strdup(pair[1]);
+      }
+
+      ink_hash_table_insert(nameVal, name, value);
+      ats_free(name);
+    }
+  }
+  ats_free(submission_copy);
+
+  return nameVal;
+}
+
+//
+// Removes any cr/lf line breaks from the text data
+//
+int
+convertHtmlToUnix(char *buffer)
+{
+  char *read = buffer;
+  char *write = buffer;
+  int numSub = 0;
+
+  while (*read != '\0') {
+    if (*read == '\015') {
+      *write = ' ';
+      read++;
+      write++;
+      numSub++;
+    } else {
+      *write = *read;
+      write++;
+      read++;
+    }
+  }
+  *write = '\0';
+  return numSub;
+}
+
+//  Substitutes HTTP unsafe character representations
+//   with their actual values.  Modifies the passed
+//   in string
+//
+int
+substituteUnsafeChars(char *buffer)
+{
+  char *read = buffer;
+  char *write = buffer;
+  char subStr[3];
+  long charVal;
+  int numSub = 0;
+
+  subStr[2] = '\0';
+  while (*read != '\0') {
+    if (*read == '%') {
+      subStr[0] = *(++read);
+      subStr[1] = *(++read);
+      charVal = strtol(subStr, (char **) NULL, 16);
+      *write = (char) charVal;
+      read++;
+      write++;
+      numSub++;
+    } else if (*read == '+') {
+      *write = ' ';
+      write++;
+      read++;
+    } else {
+      *write = *read;
+      write++;
+      read++;
+    }
+  }
+  *write = '\0';
+  return numSub;
+}
+
+// Substitutes for characters that can be misconstrued
+//   as part of an HTML tag
+// Allocates a new string which the
+//   the CALLEE MUST DELETE
+//
+char *
+substituteForHTMLChars(const char *buffer)
+{
+
+  char *safeBuf;                // the return "safe" character buffer
+  char *safeCurrent;            // where we are in the return buffer
+  const char *inCurrent = buffer;       // where we are in the original buffer
+  int inLength = strlen(buffer);        // how long the orig buffer in
+
+  // Maximum character expansion is one to three
+  unsigned int bufferToAllocate = (inLength * 5) + 1;
+  safeBuf = new char[bufferToAllocate];
+  safeCurrent = safeBuf;
+
+  while (*inCurrent != '\0') {
+    switch (*inCurrent) {
+    case '"':
+      ink_strlcpy(safeCurrent, "&quot;", bufferToAllocate);
+      safeCurrent += 6;
+      break;
+    case '<':
+      ink_strlcpy(safeCurrent, "&lt;", bufferToAllocate);
+      safeCurrent += 4;
+      break;
+    case '>':
+      ink_strlcpy(safeCurrent, "&gt;", bufferToAllocate);
+      safeCurrent += 4;
+      break;
+    case '&':
+      ink_strlcpy(safeCurrent, "&amp;", bufferToAllocate);
+      safeCurrent += 5;
+      break;
+    default:
+      *safeCurrent = *inCurrent;
+      safeCurrent += 1;
+      break;
+    }
+
+    inCurrent++;
+  }
+  *safeCurrent = '\0';
+  return safeBuf;
+}
+
+
+// bool ProxyShutdown()
+//
+//  Attempts to turn the proxy off.  Returns
+//    true if the proxy is off when the call returns
+//    and false if it is still on
+//
+bool
+ProxyShutdown()
+{
+  int i = 0;
+
+  // Check to make sure that we are not already down
+  if (!lmgmt->processRunning()) {
+    return true;
+  }
+  // Send the shutdown event
+  lmgmt->signalEvent(MGMT_EVENT_SHUTDOWN, "shutdown");
+
+  // Wait for awhile for shtudown to happen
+  do {
+    mgmt_sleep_sec(1);
+    i++;
+  } while (i < 10 && lmgmt->processRunning());
+
+  // See if we succeeded
+  if (lmgmt->processRunning()) {
+    return false;
+  } else {
+    return true;
+  }
+}
+
+//
+//
+//  Sets the LocalManager variable:  proxy.node.hostname
+//
+//    To the fully qualified hostname for the machine
+//       that we are running on
+int
+setHostnameVar()
+{
+  char ourHostName[MAXDNAME];
+  char *firstDot;
+
+  // Get Our HostName
+  if (gethostname(ourHostName, MAXDNAME) < 0) {
+    mgmt_fatal(stderr, errno, "[setHostnameVar] Can not determine our hostname");
+  }
+
+  res_init();
+  appendDefaultDomain(ourHostName, MAXDNAME);
+
+  // FQ is a Fully Qualified hostname (ie: proxydev.example.com)
+  varSetFromStr("proxy.node.hostname_FQ", ourHostName);
+
+  // non-FQ is just the hostname (ie: proxydev)
+  firstDot = strchr(ourHostName, '.');
+  if (firstDot != NULL) {
+    *firstDot = '\0';
+  }
+  varSetFromStr("proxy.node.hostname", ourHostName);
+
+  return 0;
+}
+
+// void appendDefautDomain(char* hostname, int bufLength)
+//
+//   Appends the pasted in hostname with the default
+//     domain if the hostname is an unqualified name
+//
+//   The default domain is obtained from the resolver libraries
+//    data structure
+//
+//   Truncates the domain name if bufLength is too small
+//
+//
+void
+appendDefaultDomain(char *hostname, int bufLength)
+{
+
+  int len = strlen(hostname);
+  const char msg[] = "Nodes will be know by their unqualified host name";
+  static int error_before = 0;  // Race ok since effect is multple error msg
+
+  ink_assert(len < bufLength);
+  ink_assert(bufLength >= 64);
+
+  // Ensure null termination of the result string
+  hostname[bufLength - 1] = '\0';
+
+  if (strchr(hostname, '.') == NULL) {
+    if (_res.defdname[0] != '\0') {
+      if (bufLength - 2 >= (int) (strlen(hostname) + strlen(_res.defdname))) {
+        ink_strlcat(hostname, ".", bufLength);
+        ink_strlcat(hostname, _res.defdname, bufLength);
+      } else {
+        if (error_before == 0) {
+          mgmt_log(stderr, "%s %s\n", "[appendDefaultDomain] Domain name is too long.", msg);
+          error_before++;
+        }
+      }
+    } else {
+      if (error_before == 0) {
+        mgmt_log(stderr, "%s %s\n", "[appendDefaultDomain] Unable to determine default domain name.", msg);
+        error_before++;
+      }
+    }
+  }
+}
+
+bool
+recordValidityCheck(const char *varName, const char *value)
+{
+  RecCheckT check_t;
+  char *pattern;
+
+  if (RecGetRecordCheckType((char *) varName, &check_t) != REC_ERR_OKAY) {
+    return false;
+  }
+  if (RecGetRecordCheckExpr((char *) varName, &pattern) != REC_ERR_OKAY) {
+    return false;
+  }
+
+  switch (check_t) {
+  case RECC_STR:
+    if (recordRegexCheck(pattern, value)) {
+      return true;
+    }
+    break;
+  case RECC_INT:
+    if (recordRangeCheck(pattern, value)) {
+      return true;
+    }
+    break;
+  case RECC_IP:
+    if (recordIPCheck(pattern, value)) {
+      return true;
+    }
+    break;
+  case RECC_NULL:
+    // skip checking
+    return true;
+  default:
+    // unknown RecordCheckType...
+    mgmt_log(stderr, "[WebMgmtUtil] error, unknown RecordCheckType for record %s\n", varName);
+  }
+
+  return false;
+
+
+}
+
+bool
+recordRegexCheck(const char *pattern, const char *value)
+{
+  pcre* regex;
+  const char* error;
+  int erroffset;
+
+  regex = pcre_compile(pattern, 0, &error, &erroffset, NULL);
+  if (!regex) {
+    return false;
+  } else {
+    int r = pcre_exec(regex, NULL, value, strlen(value), 0, 0, NULL, 0);
+
+    pcre_free(regex);
+    return (r != -1) ? true : false;
+  }
+
+  return false; //no-op
+}
+
+bool
+recordRangeCheck(const char *pattern, const char *value)
+{
+  int l_limit;
+  int u_limit;
+  int val;
+  char *p = (char *) pattern;
+  Tokenizer dashTok("-");
+
+  if (recordRegexCheck("^[0-9]+$", value)) {
+    while (*p != '[') {
+      p++;
+    }                           // skip to '['
+    if (dashTok.Initialize(++p, COPY_TOKS) == 2) {
+      l_limit = atoi(dashTok[0]);
+      u_limit = atoi(dashTok[1]);
+      val = atoi(value);
+      if (val >= l_limit && val <= u_limit) {
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+bool
+recordIPCheck(const char *pattern, const char *value)
+{
+  //  regex_t regex;
+  //  int result;
+  bool check;
+  const char *range_pattern =
+    "\\[[0-9]+\\-[0-9]+\\]\\\\\\.\\[[0-9]+\\-[0-9]+\\]\\\\\\.\\[[0-9]+\\-[0-9]+\\]\\\\\\.\\[[0-9]+\\-[0-9]+\\]";
+  const char *ip_pattern = "[0-9]*[0-9]*[0-9].[0-9]*[0-9]*[0-9].[0-9]*[0-9]*[0-9].[0-9]*[0-9]*[0-9]";
+
+  Tokenizer dotTok1(".");
+  Tokenizer dotTok2(".");
+  int i;
+
+  check = true;
+  if (recordRegexCheck(range_pattern, pattern) && recordRegexCheck(ip_pattern, value)) {
+    if (dotTok1.Initialize((char *) pattern, COPY_TOKS) == 4 && dotTok2.Initialize((char *) value, COPY_TOKS) == 4) {
+      for (i = 0; i < 4 && check; i++) {
+        if (!recordRangeCheck(dotTok1[i], dotTok2[i])) {
+          check = false;
+        }
+      }
+      if (check) {
+        return true;
+      }
+    }
+  } else if (strcmp(value, "") == 0) {
+    return true;
+  }
+  return false;
+}
+
+bool
+recordRestartCheck(const char *varName)
+{
+
+  RecUpdateT update_t;
+
+  if (RecGetRecordUpdateType((char *) varName, &update_t) != REC_ERR_OKAY) {
+    return false;
+  }
+
+  if (update_t == RECU_RESTART_TS || update_t == RECU_RESTART_TM || update_t == RECU_RESTART_TC) {
+    return true;
+  }
+
+  return false;
+
+}
+
+void
+fileCheckSum(char *buffer, int size, char *checksum, const size_t checksumSize)
+{
+  INK_DIGEST_CTX md5_context;
+  char checksum_md5[16];
+
+  ink_code_incr_md5_init(&md5_context);
+  ink_code_incr_md5_update(&md5_context, buffer, size);
+  ink_code_incr_md5_final(checksum_md5, &md5_context);
+  ink_code_md5_stringify(checksum, checksumSize, checksum_md5);
+}
+
+//-------------------------------------------------------------------------
+// getFilesInDirectory
+//
+// copied from MultiFiles::WalkFiles - but slightly modified
+// returns -1 if directory does not exit
+// returns 1 if everything is ok
+//-------------------------------------------------------------------------
+int
+getFilesInDirectory(char *managedDir, ExpandingArray * fileList)
+{
+  struct dirent *dirEntry;
+  DIR *dir;
+
+  char *fileName;
+  char *filePath;
+  struct stat fileInfo;
+  //  struct stat records_config_fileInfo;
+  fileEntry *fileListEntry;
+
+  if ((dir = opendir(managedDir)) == NULL) {
+    mgmt_log(stderr, "[getFilesInDirectory] Unable to open %s directory: %s\n", managedDir, strerror(errno));
+    return -1;
+  }
+  // The fun of Solaris - readdir_r requires a buffer passed into it
+  //   The man page says this obscene expression gives us the proper
+  //     size
+  dirEntry = (struct dirent *)alloca(sizeof(struct dirent) + pathconf(".", _PC_NAME_MAX) + 1);
+
+  struct dirent *result;
+  while (readdir_r(dir, dirEntry, &result) == 0) {
+    if (!result)
+      break;
+    fileName = dirEntry->d_name;
+    if (!fileName || !*fileName) {
+      continue;
+    }
+    filePath = newPathString(managedDir, fileName);
+    if (stat(filePath, &fileInfo) < 0) {
+      mgmt_log(stderr, "[getFilesInDirectory] Stat of a %s failed : %s\n", fileName, strerror(errno));
+    } else {
+      // Ignore ., .., and any dot files
+      if (fileName && *fileName != '.') {
+        fileListEntry = (fileEntry *)ats_malloc(sizeof(fileEntry));
+        fileListEntry->c_time = fileInfo.st_ctime;
+        ink_strlcpy(fileListEntry->name, fileName, sizeof(fileListEntry->name));
+        fileList->addEntry(fileListEntry);
+      }
+    }
+    delete[]filePath;
+  }
+
+  closedir(dir);
+
+  fileList->sortWithFunction(fileEntryCmpFunc);
+  return 1;
+}
+
+//-------------------------------------------------------------------------
+// newPathString
+//
+// copied from MultiFile::newPathString
+// Note: uses C++ new/delete for memory allocation/deallocation
+//-------------------------------------------------------------------------
+char *
+newPathString(const char *s1, const char *s2)
+{
+  char *newStr;
+  int  srcLen; // is the length of the src rootpath
+  int  addLen; // maximum total path length
+
+  // Treat null as an empty path.
+  if (!s2)
+    s2 = "";
+  addLen = strlen(s2) + 1;
+  if (*s2 == '/') {
+    // If addpath is rooted, then rootpath is unused.
+    newStr = new char[addLen];
+    ink_strlcpy(newStr, s2, addLen);
+    return newStr;
+  }
+  if (!s1 || !*s1) {
+    // If there's no rootpath return the addpath
+    newStr = new char[addLen];
+    ink_strlcpy(newStr, s2, addLen);
+    return newStr;
+  }
+  srcLen = strlen(s1);
+  newStr = new char[srcLen + addLen + 1];
+  ink_assert(newStr != NULL);
+
+  ink_strlcpy(newStr, s1, srcLen + addLen + 1);
+  if (newStr[srcLen - 1] != '/')
+    newStr[srcLen++] = '/';
+  ink_strlcpy(&newStr[srcLen], s2, srcLen + addLen + 1);
+
+  return newStr;
+}
diff --git a/mgmt/utils/WebMgmtUtils.h b/mgmt/utils/WebMgmtUtils.h
new file mode 100644
index 00000000..503aec51
--- /dev/null
+++ b/mgmt/utils/WebMgmtUtils.h
@@ -0,0 +1,124 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _WEB_MGMT_UTILS_
+#define _WEB_MGMT_UTILS_
+
+#include "MgmtDefs.h"
+
+/****************************************************************************
+ *
+ *  WebMgmtUtils.h - Functions for interfacing to management records
+ *
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_hash_table.h"
+#include "TextBuffer.h"
+#include "ExpandingArray.h"
+
+#include "P_RecCore.h"
+
+// class MgmtData - stores information from local manager
+//    variables in its native type
+//
+#include "P_RecCore.h"
+class MgmtData
+{
+public:
+  MgmtData();
+  ~MgmtData();
+  bool compareFromString(const char *str);
+  bool setFromName(const char *varName);
+  RecDataT type;
+  RecData data;
+};
+
+// Convert to byte units (GB, MB, KB)
+void bytesFromInt(RecInt bytes, char *bufVal);
+
+// Convert to MB
+void MbytesFromInt(RecInt bytes, char *bufVal);
+
+// Create comma string from int
+void commaStrFromInt(RecInt bytes, char *bufVal);
+
+// Create percent string from float
+void percentStrFromFloat(RecFloat val, char *bufVal);
+
+// All types converted to/from strings where appropriate
+bool varStrFromName(const char *varName, char *bufVal, int bufLen);
+bool varSetFromStr(const char *varName, const char *value);
+
+// Converts where applicable to specified type
+bool varIntFromName(const char *varName, RecInt * value);
+bool varFloatFromName(const char *varName, RecFloat * value);
+bool varCounterFromName(const char *varName, RecCounter * value);
+bool varDataFromName(RecDataT varType, const char *varName, RecData *value);
+
+// No conversion done.  varName must represnt a value of the appropriate
+//  type
+// Default arguement "convert" added to allow great flexiblity in type checking
+bool varSetInt(const char *varName, RecInt value, bool convert = false);
+bool varSetCounter(const char *varName, RecCounter value, bool convert = false);
+bool varSetFloat(const char *varName, RecFloat value, bool convert = false);
+bool varSetData(RecDataT varType, const char *varName, RecData value);
+
+// Return the type of the variable named
+RecDataT varType(const char *varName);
+
+int convertHtmlToUnix(char *buffer);
+int substituteUnsafeChars(char *buffer);
+char *substituteForHTMLChars(const char *buffer);
+
+// Produce a hash table based on a HTML form submission
+//
+//  CALLEE deallocates hashtable
+InkHashTable *processFormSubmission(char *submission);
+InkHashTable *processFormSubmission_noSubstitute(char *submission);
+
+// Shutdown the proxy
+bool ProxyShutdown();
+int setHostnameVar();
+void appendDefaultDomain(char *hostname, int bufLength);
+
+// Some scaling constants
+#define BYTES_TO_MB_SCALE (1/(1024*1024.0))
+#define MBIT_TO_KBIT_SCALE (1000.0)
+#define SECOND_TO_MILLISECOND_SCALE (1000.0)
+#define PCT_TO_INTPCT_SCALE (100.0)
+
+bool recordValidityCheck(const char *varName, const char *value);
+bool recordRegexCheck(const char *pattern, const char *value);
+bool recordRangeCheck(const char *pattern, const char *value);
+bool recordIPCheck(const char *pattern, const char *value);
+bool recordRestartCheck(const char *varName);
+
+void fileCheckSum(char *buffer, int size, char *checksum, const size_t checksumSize);
+
+// file management
+int getFilesInDirectory(char *managedDir, ExpandingArray * fileList);
+char *newPathString(const char *s1, const char *s2);
+
+#endif
diff --git a/mgmt/web2/Makefile.am b/mgmt/web2/Makefile.am
new file mode 100644
index 00000000..3de8c686
--- /dev/null
+++ b/mgmt/web2/Makefile.am
@@ -0,0 +1,54 @@
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/utils \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+MGMT_DEFS = @MGMT_DEFS@
+DEFS  += $(MGMT_DEFS)
+
+noinst_LIBRARIES = libweb.a
+libweb_a_SOURCES = \
+  WebCompatibility.cc \
+  WebCompatibility.h \
+  WebGlobals.h \
+  WebHttp.cc \
+  WebHttp.h \
+  WebHttpContext.cc \
+  WebHttpContext.h \
+  WebHttpMessage.cc \
+  WebHttpMessage.h \
+  WebHttpSession.cc \
+  WebHttpSession.h \
+  WebIntrMain.cc \
+  WebIntrMain.h \
+  WebOverview.cc \
+  WebOverview.h \
+  WebUtils.cc \
+  WebUtils.h
diff --git a/mgmt/web2/Makefile.in b/mgmt/web2/Makefile.in
new file mode 100644
index 00000000..49c8389d
--- /dev/null
+++ b/mgmt/web2/Makefile.in
@@ -0,0 +1,898 @@
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+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
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+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Makefile.am for the Enterprise Management module.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
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+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
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+AM_CPPFLAGS = \
+  -I$(top_srcdir)/iocore/utils \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/api \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+noinst_LIBRARIES = libweb.a
+libweb_a_SOURCES = \
+  WebCompatibility.cc \
+  WebCompatibility.h \
+  WebGlobals.h \
+  WebHttp.cc \
+  WebHttp.h \
+  WebHttpContext.cc \
+  WebHttpContext.h \
+  WebHttpMessage.cc \
+  WebHttpMessage.h \
+  WebHttpSession.cc \
+  WebHttpSession.h \
+  WebIntrMain.cc \
+  WebIntrMain.h \
+  WebOverview.cc \
+  WebOverview.h \
+  WebUtils.cc \
+  WebUtils.h
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign mgmt/web2/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign mgmt/web2/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libweb.a: $(libweb_a_OBJECTS) $(libweb_a_DEPENDENCIES) $(EXTRA_libweb_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libweb.a
+	$(AM_V_AR)$(libweb_a_AR) libweb.a $(libweb_a_OBJECTS) $(libweb_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libweb.a
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebCompatibility.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebHttp.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebHttpContext.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebHttpMessage.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebHttpSession.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebIntrMain.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebOverview.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/WebUtils.Po@am__quote@
+
+.cc.o:
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
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+
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+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+
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+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+
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+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
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+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
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+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+	distclean-tags
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+info: info-am
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+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
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+ps: ps-am
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+ps-am:
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+uninstall-am:
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+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
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+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/mgmt/web2/WebCompatibility.cc b/mgmt/web2/WebCompatibility.cc
new file mode 100644
index 00000000..0262b7ba
--- /dev/null
+++ b/mgmt/web2/WebCompatibility.cc
@@ -0,0 +1,227 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+ *
+ *  WebCompatibility.cc - cross platform issues dealt with here
+ *
+ *
+ ****************************************************************************/
+
+#include "WebCompatibility.h"
+#include "MgmtSocket.h"
+
+//-------------------------------------------------------------------------
+// WebGetHostname_Xmalloc
+//-------------------------------------------------------------------------
+
+char *
+WebGetHostname_Xmalloc(sockaddr_in * client_info)
+{
+  ink_gethostbyaddr_r_data data;
+  char *hostname_tmp;
+
+  struct hostent *r = ink_gethostbyaddr_r((char *) &client_info->sin_addr.s_addr,
+                                          sizeof(client_info->sin_addr.s_addr),
+                                          AF_INET,
+                                          &data);
+
+  hostname_tmp = r ? r->h_name : inet_ntoa(client_info->sin_addr);
+  return ats_strdup(hostname_tmp);
+
+}
+
+//-------------------------------------------------------------------------
+// WebFileOpenR
+//-------------------------------------------------------------------------
+
+WebHandle
+WebFileOpenR(const char *file)
+{
+
+  WebHandle h_file;
+  if ((h_file = mgmt_open(file, O_RDONLY)) <= 0) {
+    return WEB_HANDLE_INVALID;
+  }
+  return h_file;
+}
+
+//-------------------------------------------------------------------------
+// WebFileOpenW
+//-------------------------------------------------------------------------
+
+WebHandle
+WebFileOpenW(const char *file)
+{
+
+  WebHandle h_file;
+
+  if ((h_file = mgmt_open_mode(file, O_WRONLY | O_APPEND | O_CREAT, 0644)) < 0) {
+    return WEB_HANDLE_INVALID;
+  }
+  fcntl(h_file, F_SETFD, 1);
+
+  return h_file;
+
+}
+
+//-------------------------------------------------------------------------
+// WebFileClose
+//-------------------------------------------------------------------------
+
+void
+WebFileClose(WebHandle h_file)
+{
+
+  close(h_file);
+}
+
+//-------------------------------------------------------------------------
+// WebFileRead
+//-------------------------------------------------------------------------
+
+int
+WebFileRead(WebHandle h_file, char *buf, int size, int *bytes_read)
+{
+
+  if ((*bytes_read =::read(h_file, buf, size)) < 0) {
+    *bytes_read = 0;
+    return WEB_HTTP_ERR_FAIL;
+  }
+  return WEB_HTTP_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// WebFileWrite
+//-------------------------------------------------------------------------
+
+int
+WebFileWrite(WebHandle h_file, char *buf, int size, int *bytes_written)
+{
+
+  if ((*bytes_written =::write(h_file, buf, size)) < 0) {
+    *bytes_written = 0;
+    return WEB_HTTP_ERR_FAIL;
+  }
+  return WEB_HTTP_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// WebFileImport_Xmalloc
+//-------------------------------------------------------------------------
+
+int
+WebFileImport_Xmalloc(const char *file, char **file_buf, int *file_size)
+{
+
+  int err = WEB_HTTP_ERR_OKAY;
+  WebHandle h_file = WEB_HANDLE_INVALID;
+  int bytes_read;
+
+  *file_buf = 0;
+  *file_size = 0;
+
+  if ((h_file = WebFileOpenR(file)) == WEB_HANDLE_INVALID)
+    goto Lerror;
+  *file_size = WebFileGetSize(h_file);
+  *file_buf = (char *)ats_malloc(*file_size + 1);
+  if (WebFileRead(h_file, *file_buf, *file_size, &bytes_read) == WEB_HTTP_ERR_FAIL)
+    goto Lerror;
+  if (bytes_read != *file_size)
+    goto Lerror;
+  (*file_buf)[*file_size] = '\0';
+
+  goto Ldone;
+
+Lerror:
+
+  ats_free(*file_buf);
+  *file_buf = 0;
+  *file_size = 0;
+  err = WEB_HTTP_ERR_FAIL;
+
+Ldone:
+  if (h_file != WEB_HANDLE_INVALID)
+    WebFileClose(h_file);
+
+  return err;
+
+}
+
+//-------------------------------------------------------------------------
+// WebFileGetSize
+//-------------------------------------------------------------------------
+
+int
+WebFileGetSize(WebHandle h_file)
+{
+
+  int size;
+
+  struct stat fileStats;
+  fstat(h_file, &fileStats);
+  size = fileStats.st_size;
+  return size;
+
+}
+
+//-------------------------------------------------------------------------
+// WebFileGetDateGmt
+//-------------------------------------------------------------------------
+
+time_t
+WebFileGetDateGmt(WebHandle h_file)
+{
+
+  time_t date;
+
+  struct stat fileStats;
+  fstat(h_file, &fileStats);
+  date = fileStats.st_mtime + ink_timezone();
+  return date;
+
+}
+
+//-------------------------------------------------------------------------
+// WebSeedRand
+//-------------------------------------------------------------------------
+
+void
+WebSeedRand(long seed)
+{
+  srand48(seed);
+  return;
+
+}
+
+//-------------------------------------------------------------------------
+// WebRand
+//-------------------------------------------------------------------------
+
+long
+WebRand()
+{
+  // we may want to fix this later
+  // coverity[secure_coding]
+  return lrand48();
+}
diff --git a/mgmt/web2/WebCompatibility.h b/mgmt/web2/WebCompatibility.h
new file mode 100644
index 00000000..36662084
--- /dev/null
+++ b/mgmt/web2/WebCompatibility.h
@@ -0,0 +1,89 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+ *
+ *  WebCompatibility.h - cross platform issues dealt with here
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _WEB_COMPATIBILITY_H_
+#define _WEB_COMPATIBILITY_H_
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_inet.h"
+#include "ink_string.h"
+#include "ink_time.h"
+
+#include "WebGlobals.h"
+
+//-------------------------------------------------------------------------
+// types/defines
+//-------------------------------------------------------------------------
+
+#define WEB_HANDLE_INVALID -1
+typedef int WebHandle;
+
+//-------------------------------------------------------------------------
+// WebGetHostname
+//-------------------------------------------------------------------------
+
+#if defined(freebsd)
+//extern "C" struct hostent *gethostbyaddr_r(const char *addr, int length, int type,
+//                                  struct hostent *result, char *buffer, int buflen, int *h_errnop);
+#endif
+
+#if defined(solaris)
+extern "C"
+{
+  struct hostent *gethostbyaddr_r(const char *addr,
+                                  int length, int type, struct hostent *result,
+                                  char *buffer, int buflen, int *h_errnop);
+}
+#endif
+
+char *WebGetHostname_Xmalloc(sockaddr_in * client_info);
+
+//-------------------------------------------------------------------------
+// WebFile
+//-------------------------------------------------------------------------
+
+WebHandle WebFileOpenR(const char *file);
+WebHandle WebFileOpenW(const char *file);
+void WebFileClose(WebHandle h_file);
+int WebFileRead(WebHandle h_file, char *buf, int size, int *bytes_read);
+int WebFileWrite(WebHandle h_file, char *buf, int size, int *bytes_written);
+int WebFileImport_Xmalloc(const char *file, char **file_buf, int *file_size);
+int WebFileGetSize(WebHandle h_file);
+time_t WebFileGetDateGmt(WebHandle h_file);
+
+//-------------------------------------------------------------------------
+// Random Numbers
+//-------------------------------------------------------------------------
+
+void WebSeedRand(long seed);
+long WebRand();
+
+#endif // _WEB_COMPATIBILITY_H_
diff --git a/mgmt/web2/WebGlobals.h b/mgmt/web2/WebGlobals.h
new file mode 100644
index 00000000..2ff3dc9b
--- /dev/null
+++ b/mgmt/web2/WebGlobals.h
@@ -0,0 +1,144 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _WEB_GLOBALS_H_
+#define _WEB_GLOBALS_H_
+
+#include <sys/types.h>
+#include <time.h>
+#include <stdio.h>
+#include "ink_thread.h"
+
+#ifdef MGMT_WEB_TUNE
+#include "ink_hrtime.h"
+#include "WebTune.h"
+#endif
+
+/****************************************************************************
+ *
+ *  WebGlobals.h - Global Variables and types for the Web Interface
+ *
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_mutex.h"
+#include "MgmtHashTable.h"
+
+extern "C"
+{
+  struct sockaddr_in;
+}
+
+// DG: Added NO_THR state for init in compile warning
+enum UIthr_t
+{
+  NO_THR = 0,
+  AUTOCONF_THR
+};
+
+struct serviceThr_t
+{
+  ink_thread threadId;
+  int fd;                       // Client file descriptor the thread is working
+  // with
+  time_t startTime;
+
+  UIthr_t type;
+  bool waitingForJoin;
+  bool alreadyShutdown;
+  struct sockaddr_in *clientInfo;
+#ifdef MGMT_WEB_TUNE
+  WebTune *timing;
+  int xactNumber;
+#endif
+};
+
+// Each port that we server documents on
+//   has context associated with it which
+//   contains information for that interface
+//
+// Within the secure adminstration context, security
+//  parameters can change at run time.  The struct
+//  is copied for each connection.  Therefore, all
+//  fields that need to change CAN NOT BE POINTERS
+//  since prior transactions in the system will STILL
+//  BE USING the memory pointed to.
+//
+struct WebContext
+{
+  const char *defaultFile;
+  char *docRoot;
+  int docRootLen;
+};
+
+struct WebInterFaceGlobals
+{
+  ink_mutex serviceThrLock;
+  ink_mutex submitLock;
+#if defined(darwin)
+  ink_sem *serviceThrCount;
+#else
+  ink_sem serviceThrCount;
+#endif
+  serviceThr_t *serviceThrArray;
+};
+
+extern WebInterFaceGlobals wGlobals;
+extern WebContext autoconfContext;
+
+#define MAX_SERVICE_THREADS 100
+#define FILE_NAME_MAX       255
+
+//-------------------------------------------------------------------------
+// web2 items
+//-------------------------------------------------------------------------
+
+#define WEB_HTTP_ERR_OKAY                    0
+#define WEB_HTTP_ERR_FAIL                   -1
+#define WEB_HTTP_ERR_REQUEST_ERROR          -2
+#define WEB_HTTP_ERR_REQUEST_FATAL          -3
+#define WEB_HTTP_ERR_SESSION_EXPIRED        -4
+#define WEB_HTTP_ERR_INVALID_CFG_RULE       -5
+
+#define WEB_HTTP_SERVER_STATE_WIN32        0x01
+#define WEB_HTTP_SERVER_STATE_UNIX         0x02
+#define WEB_HTTP_SERVER_STATE_AUTH_ENABLED 0x08
+#define WEB_HTTP_SERVER_STATE_AUTOCONF     0x20
+
+#define WEB_HTTP_STATE_CONFIGURE           0x01 // MONITOR if bit is 0
+#define WEB_HTTP_STATE_MORE_DETAIL         0x02 // LESS_DETAIL if bit is 0
+#define WEB_HTTP_STATE_SUBMIT_WARN         0x04 // set if submission warning
+#define WEB_HTTP_STATE_SUBMIT_NOTE         0x08 // set if submission note
+
+#define WEB_MAX_PAGE_QUERY_LEN             (32+1)
+#define WEB_MAX_EDIT_FILE_SIZE             (32*1024)    // Some browsers limit you to this
+
+struct WebHttpConInfo
+{
+  int fd;
+  WebContext *context;
+  sockaddr_in *clientInfo;
+};
+
+#endif
diff --git a/mgmt/web2/WebHttp.cc b/mgmt/web2/WebHttp.cc
new file mode 100644
index 00000000..17b75e5a
--- /dev/null
+++ b/mgmt/web2/WebHttp.cc
@@ -0,0 +1,631 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+ /***************************************/
+/****************************************************************************
+ *
+ *  WebHttp.cc - code to process requests, and create responses
+ *
+ *
+ ****************************************************************************/
+
+#include "libts.h"
+#include "ink_platform.h"
+
+#include "SimpleTokenizer.h"
+
+#include "WebCompatibility.h"
+#include "WebHttp.h"
+#include "WebHttpContext.h"
+#include "WebHttpMessage.h"
+#include "WebHttpSession.h"
+#include "WebOverview.h"
+
+#include "mgmtapi.h"
+#include "WebMgmtUtils.h"
+#include "MgmtUtils.h"
+#include "CfgContextUtils.h"
+
+//-------------------------------------------------------------------------
+// defines
+//-------------------------------------------------------------------------
+
+#define DIR_MODE S_IRWXU
+#define FILE_MODE S_IRWXU
+
+#define MAX_ARGS         10
+#define MAX_TMP_BUF_LEN  1024
+
+//-------------------------------------------------------------------------
+// types
+//-------------------------------------------------------------------------
+
+typedef int (*WebHttpHandler) (WebHttpContext * whc, const char *file);
+
+//-------------------------------------------------------------------------
+// globals
+//-------------------------------------------------------------------------
+
+// only allow access to specific files on the autoconf port
+static InkHashTable *g_autoconf_allow_ht = 0;
+
+static InkHashTable *g_file_bindings_ht = 0;
+
+//-------------------------------------------------------------------------
+// handle_record_info
+//
+// Warning!!! This is really hacky since we should not be directly
+// accessing the librecords data structures.  Just do this here
+// tempoarily until we can have something better.
+//-------------------------------------------------------------------------
+
+#include "P_RecCore.h"
+
+#define LINE_SIZE 512
+#define BUF_SIZE 128
+#define NULL_STR "NULL"
+
+#undef LINE_SIZE
+#undef BUF_SIZE
+#undef NULL_STR
+
+//-------------------------------------------------------------------------
+// handle_synthetic
+//-------------------------------------------------------------------------
+
+static int
+handle_synthetic(WebHttpContext * whc, const char * /* file ATS_UNUSED */)
+{
+  char buffer[28];
+  char cur = 'a';
+  whc->response_hdr->setContentType(TEXT_PLAIN);
+  whc->response_hdr->setStatus(STATUS_OK);
+  buffer[26] = '\n';
+  buffer[27] = '\0';
+  for (int i = 0; i < 26; i++) {
+    *(buffer + i) = cur;
+    cur++;
+  }
+  for (int j = 0; j < 60; j++) {
+    whc->response_bdy->copyFrom(buffer, 27);
+  }
+  return WEB_HTTP_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// handle_default
+//-------------------------------------------------------------------------
+
+static int
+handle_default(WebHttpContext * whc, const char *file)
+{
+  char *doc_root_file;
+  int file_size;
+  time_t file_date_gmt;
+  WebHandle h_file;
+
+  httpMessage *request = whc->request;
+  httpResponse *response_hdr = whc->response_hdr;
+  textBuffer *response_bdy = whc->response_bdy;
+
+  const char *request_file = file;
+  time_t request_file_ims;
+  int request_file_len;
+
+  // requests are supposed to begin with a "/"
+  if (*request_file != '/') {
+    response_hdr->setStatus(STATUS_NOT_FOUND);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_FOUND);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+  // first, make sure there are no ..'s in path or root directory
+  // access in name for security reasons
+  if (strstr(request_file, "..") != NULL || strncmp(request_file, "//", 2) == 0) {
+    response_hdr->setStatus(STATUS_FORBIDDEN);
+    WebHttpSetErrorResponse(whc, STATUS_FORBIDDEN);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+
+  if (strcmp("/", request_file) == 0) {
+    request_file = whc->default_file;
+  }
+  // check file type and set document type if appropiate
+  request_file_len = strlen(request_file);
+  if (strcmp(request_file + (request_file_len - 4), ".htm") == 0) {
+    response_hdr->setContentType(TEXT_HTML);
+  } else if (strcmp(request_file + (request_file_len - 5), ".html") == 0) {
+    response_hdr->setContentType(TEXT_HTML);
+  } else if (strcmp(request_file + (request_file_len - 4), ".css") == 0) {
+    response_hdr->setContentType(TEXT_CSS);
+  } else if (strcmp(request_file + (request_file_len - 4), ".gif") == 0) {
+    response_hdr->setContentType(IMAGE_GIF);
+  } else if (strcmp(request_file + (request_file_len - 4), ".jpg") == 0) {
+    response_hdr->setContentType(IMAGE_JPEG);
+  } else if (strcmp(request_file + (request_file_len - 5), ".jpeg") == 0) {
+    response_hdr->setContentType(IMAGE_JPEG);
+  } else if (strcmp(request_file + (request_file_len - 4), ".png") == 0) {
+    response_hdr->setContentType(IMAGE_PNG);
+  } else if (strcmp(request_file + (request_file_len - 4), ".jar") == 0) {
+    response_hdr->setContentType(APP_JAVA);
+  } else if (strcmp(request_file + (request_file_len - 3), ".js") == 0) {
+    response_hdr->setContentType(APP_JAVASCRIPT);
+  } else if (strcmp(request_file + (request_file_len - 4), ".der") == 0) {
+    response_hdr->setContentType(APP_X509);
+  } else if (strcmp(request_file + (request_file_len - 4), ".dat") == 0) {
+    response_hdr->setContentType(APP_AUTOCONFIG);
+    response_hdr->setCachable(0);
+  } else if (strcmp(request_file + (request_file_len - 4), ".pac") == 0) {
+    response_hdr->setContentType(APP_AUTOCONFIG);
+    // Fixed INKqa04312 - 02/21/1999 elam
+    // We don't want anyone to cache .pac files.
+    response_hdr->setCachable(0);
+  } else if (strcmp(request_file + (request_file_len - 4), ".zip") == 0) {
+    response_hdr->setContentType(APP_ZIP);
+  } else {
+    // don't serve file types that we don't know about; helps to lock
+    // down the webserver.  for example, when serving files out the
+    // etc/trafficserver/plugins directory, we don't want to allow the users to
+    // access the .so plugin files.
+    response_hdr->setStatus(STATUS_NOT_FOUND);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_FOUND);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+
+  // append the appropriate doc_root on to the file
+  doc_root_file = WebHttpAddDocRoot_Xmalloc(whc, request_file, request_file_len);
+
+  // open the requested file
+  if ((h_file = WebFileOpenR(doc_root_file)) == WEB_HANDLE_INVALID) {
+    //could not find file
+    ats_free(doc_root_file);
+    response_hdr->setStatus(STATUS_NOT_FOUND);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_FOUND);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+  // get the file
+  file_size = WebFileGetSize(h_file);
+  file_date_gmt = WebFileGetDateGmt(h_file);
+  request_file_ims = request->getModTime();
+
+  // special logic for the autoconf port
+  if ((whc->server_state & WEB_HTTP_SERVER_STATE_AUTOCONF) && (file_size == 0)) {
+    response_hdr->setStatus(STATUS_NOT_FOUND);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_FOUND);
+    WebFileClose(h_file);
+    ats_free(doc_root_file);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+  // Check to see if the clients copy is up to date.  Ignore the
+  // stupid content length that Netscape Navigator sends on the
+  // If-Modified-Since line since it not in the HTTP 1.0 standard
+
+  // Since the client sends If-Modified-Since in GMT, make sure that
+  // we transform mtime to GMT
+  if (request_file_ims != -1 && request_file_ims >= file_date_gmt) {
+    response_hdr->setStatus(STATUS_NOT_MODIFIED);
+  } else {
+    // fetch the file from disk to memory
+    response_hdr->setStatus(STATUS_OK);
+    response_hdr->setLength(file_size);
+    while (response_bdy->rawReadFromFile(h_file) > 0);
+  }
+  // set the document last-modified header
+  response_hdr->setLastMod(file_date_gmt);
+
+  WebFileClose(h_file);
+  ats_free(doc_root_file);
+
+  return WEB_HTTP_ERR_OKAY;
+
+}
+
+
+//-------------------------------------------------------------------------
+// read_request
+//-------------------------------------------------------------------------
+int
+read_request(WebHttpContext * whc)
+{
+  const int buffer_size = 2048;
+  char *buffer = (char *) alloca(buffer_size);
+
+  httpMessage *request = whc->request;
+  httpResponse *response_hdr = whc->response_hdr;
+
+  // first get the request line
+  if (sigfdrdln(whc->si, buffer, buffer_size) < 0) {
+    // if we can not get the request line, update the status code so
+    // it can get logged correctly but do not bother trying to send a
+    // response
+    response_hdr->setStatus(STATUS_BAD_REQUEST);
+    return WEB_HTTP_ERR_REQUEST_FATAL;
+  }
+
+
+  if (request->addRequestLine(buffer) != 0) {
+    response_hdr->setStatus(STATUS_BAD_REQUEST);
+    WebHttpSetErrorResponse(whc, STATUS_BAD_REQUEST);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+
+  // Check for a scheme we do not understand
+  //
+  //  If we undertand the scheme, it has
+  //   to be HTTP
+  if (request->getScheme() == SCHEME_UNKNOWN) {
+    response_hdr->setStatus(STATUS_NOT_IMPLEMENTED);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_IMPLEMENTED);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+
+  if (request->getMethod() != METHOD_GET && request->getMethod() != METHOD_POST && request->getMethod() != METHOD_HEAD) {
+    response_hdr->setStatus(STATUS_NOT_IMPLEMENTED);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_IMPLEMENTED);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+  // Read the headers of http request line by line until
+  //   we get a line that is solely composed of "\r" (or
+  //   just "" since not everyone follows the HTTP standard
+  //
+  do {
+    if (sigfdrdln(whc->si, buffer, buffer_size) < 0) {
+      response_hdr->setStatus(STATUS_BAD_REQUEST);
+      return WEB_HTTP_ERR_REQUEST_FATAL;
+    }
+    request->addHeader(buffer);
+  } while (strcmp(buffer, "\r") != 0 && *buffer != '\0');
+
+  // If there is a content body, read it in
+  if (request->addRequestBody(whc->si) < 0) {
+    // There was error on reading the response body
+    response_hdr->setStatus(STATUS_BAD_REQUEST);
+    WebHttpSetErrorResponse(whc, STATUS_NOT_IMPLEMENTED);
+    return WEB_HTTP_ERR_REQUEST_ERROR;
+  }
+
+  // Drain read channel: In the case of Linux, OS sends reset to the
+  // socket if we close it when there is data left on it ot be read
+  // (in compliance with TCP). This causes problems with the "POST"
+  // method. (for example with update.html). With IE, we found ending
+  // "\r\n" were not read.  The following work around is to read all
+  // that is left in the socket before closing it.
+#define MAX_DRAIN_BYTES 32
+  // INKqa11524: If the user is malicious and keeps sending us data,
+  // we'll go into an infinite spin here.  Fix is to only drain up
+  // to 32 bytes to allow for funny browser behavior but to also
+  // prevent reading forever.
+  int drain_bytes = 0;
+  if (fcntl(whc->si.fd, F_SETFL, O_NONBLOCK) >= 0) {
+    char ch;
+    while ((read(whc->si.fd, &ch, 1) > 0) && (drain_bytes < MAX_DRAIN_BYTES)) {
+      drain_bytes++;
+    }
+  }
+
+  return WEB_HTTP_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// write_response
+//-------------------------------------------------------------------------
+
+int
+write_response(WebHttpContext * whc)
+{
+  char *buf_p;
+  int bytes_to_write;
+  int bytes_written;
+
+  // Make sure that we have a content length
+  if (whc->response_hdr->getLength() < 0) {
+    whc->response_hdr->setLength(whc->response_bdy->spaceUsed());
+  }
+  whc->response_hdr->writeHdr(whc->si);
+  if (whc->request->getMethod() != METHOD_HEAD) {
+    buf_p = whc->response_bdy->bufPtr();
+    bytes_to_write = whc->response_bdy->spaceUsed();
+    bytes_written = 0;
+    while (bytes_to_write) {
+      bytes_written = socket_write(whc->si, buf_p, bytes_to_write);
+      if (bytes_written < 0) {
+        if (errno == EINTR || errno == EAGAIN)
+          continue;
+        else
+          return WEB_HTTP_ERR_FAIL;
+      } else {
+        bytes_to_write -= bytes_written;
+        buf_p += bytes_written;
+      }
+    }
+  }
+  return WEB_HTTP_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// process_query
+//-------------------------------------------------------------------------
+
+int
+process_query(WebHttpContext * whc)
+{
+  int err;
+  InkHashTable *ht;
+  char *value;
+  // processFormSubmission will substituteUnsafeChars()
+  if ((ht = processFormSubmission((char *) (whc->request->getQuery()))) != NULL) {
+    whc->query_data_ht = ht;
+    // extract some basic info for easier access later
+    if (ink_hash_table_lookup(ht, "mode", (void **) &value)) {
+      if (strcmp(value, "1") == 0)
+        whc->request_state |= WEB_HTTP_STATE_CONFIGURE;
+    }
+    if (ink_hash_table_lookup(ht, "detail", (void **) &value)) {
+      if (strcmp(value, "more") == 0)
+        whc->request_state |= WEB_HTTP_STATE_MORE_DETAIL;
+    }
+    err = WEB_HTTP_ERR_OKAY;
+  } else {
+    err = WEB_HTTP_ERR_FAIL;
+  }
+  return err;
+}
+
+//-------------------------------------------------------------------------
+// process_post
+//-------------------------------------------------------------------------
+int
+process_post(WebHttpContext * whc)
+{
+  int err;
+  InkHashTable *ht;
+  // processFormSubmission will substituteUnsafeChars()
+  if ((ht = processFormSubmission(whc->request->getBody())) != NULL) {
+    whc->post_data_ht = ht;
+    err = WEB_HTTP_ERR_OKAY;
+  } else {
+    err = WEB_HTTP_ERR_FAIL;
+  }
+  return err;
+}
+
+//-------------------------------------------------------------------------
+// signal_handler_init
+//-------------------------------------------------------------------------
+
+void
+signal_handler_do_nothing(int /* x ATS_UNUSED */)
+{
+  //  A small function thats whole purpose is to give the signal
+  //  handler for breaking out of a network read, somethng to call
+}
+
+int
+signal_handler_init()
+{
+  // Setup signal handling.  We want to able to unstick stuck socket
+  // connections.  This is accomplished by a watcher thread doing a
+  // half close on the incoming socket after a timeout.  To break, out
+  // the current read which is likely stuck we have a signal handler
+  // on SIGUSR1 which does nothing except by side effect of break the
+  // read.  All future reads from the socket should fail since
+  // incoming traffic is shutdown on the connection and thread should
+  // exit normally
+  sigset_t sigsToBlock;
+  // FreeBSD and Linux use SIGUSR1 internally in the threads library
+#if !defined(linux) && !defined(freebsd) && !defined(darwin)
+  // Set up the handler for SIGUSR1
+  struct sigaction sigHandler;
+  sigHandler.sa_handler = signal_handler_do_nothing;
+  sigemptyset(&sigHandler.sa_mask);
+  sigHandler.sa_flags = 0;
+  sigaction(SIGUSR1, &sigHandler, NULL);
+#endif
+  // Block all other signals
+  sigfillset(&sigsToBlock);
+  sigdelset(&sigsToBlock, SIGUSR1);
+  ink_thread_sigsetmask(SIG_SETMASK, &sigsToBlock, NULL);
+  return WEB_HTTP_ERR_OKAY;
+}
+
+//-------------------------------------------------------------------------
+// WebHttpInit
+//-------------------------------------------------------------------------
+
+void
+WebHttpInit()
+{
+  static int initialized = 0;
+
+  if (initialized != 0) {
+    mgmt_log(stderr, "[WebHttpInit] error, initialized twice (%d)", initialized);
+  }
+  initialized++;
+
+  // initialize allow files
+  g_autoconf_allow_ht = ink_hash_table_create(InkHashTableKeyType_String);
+  ink_hash_table_insert(g_autoconf_allow_ht, "/proxy.pac", NULL);
+  ink_hash_table_insert(g_autoconf_allow_ht, "/public_key.der", NULL);
+  ink_hash_table_insert(g_autoconf_allow_ht, "/synthetic.txt", NULL);
+
+  // initialize file bindings
+  g_file_bindings_ht = ink_hash_table_create(InkHashTableKeyType_String);
+  ink_hash_table_insert(g_file_bindings_ht, "/synthetic.txt", (void *) handle_synthetic);
+
+  // initialize other modules
+  WebHttpSessionInit();
+}
+
+//-------------------------------------------------------------------------
+// WebHttpHandleConnection
+//
+// Handles http requests across the web management port
+//-------------------------------------------------------------------------
+void
+WebHttpHandleConnection(WebHttpConInfo * whci)
+{
+  int err = WEB_HTTP_ERR_OKAY;
+  WebHttpContext *whc;
+  WebHttpHandler handler;
+  char *file;
+  char *extn;
+  int drain_bytes;
+  char ch;
+
+  // initialization
+  if ((whc = WebHttpContextCreate(whci)) == NULL)
+    goto Ltransaction_close;
+  if (signal_handler_init() != WEB_HTTP_ERR_OKAY)
+    goto Ltransaction_close;
+
+  // read request
+  if ((err = read_request(whc)) != WEB_HTTP_ERR_OKAY)
+    goto Lerror_switch;
+
+  // get our file information
+  file = (char *) (whc->request->getFile());
+  if (strcmp("/", file) == 0) {
+    file = (char *) (whc->default_file);
+  }
+
+  Debug("web2", "[WebHttpHandleConnection] request file: %s", file);
+
+  if (whc->server_state & WEB_HTTP_SERVER_STATE_AUTOCONF) {
+
+    // security concern: special treatment if we're handling a request
+    // on the autoconf port.  can't have users downloading arbitrary
+    // files under the config directory!
+    if (!ink_hash_table_isbound(g_autoconf_allow_ht, file)) {
+      mgmt_elog(stderr, 0, "[WebHttpHandleConnection] %s not valid autoconf file", file);
+      whc->response_hdr->setStatus(STATUS_NOT_FOUND);
+      WebHttpSetErrorResponse(whc, STATUS_NOT_FOUND);
+      goto Ltransaction_send;
+    }
+  }
+
+  // process query
+  process_query(whc);
+
+  // Lookup file handler
+  if (!ink_hash_table_lookup(g_file_bindings_ht, file, (void **) &handler)) {
+    extn = file;
+    while (*extn != '\0')
+      extn++;
+    while ((extn > file) && (*extn != '.'))
+      extn--;
+    handler = handle_default;
+  }
+  err = handler(whc, file);
+
+Lerror_switch:
+
+  switch (err) {
+  case WEB_HTTP_ERR_OKAY:
+  case WEB_HTTP_ERR_REQUEST_ERROR:
+    goto Ltransaction_send;
+  case WEB_HTTP_ERR_FAIL:
+  case WEB_HTTP_ERR_REQUEST_FATAL:
+  default:
+    goto Ltransaction_close;
+  }
+
+Ltransaction_send:
+
+  // write response
+  if ((err = write_response(whc)) != WEB_HTTP_ERR_OKAY)
+    goto Ltransaction_close;
+
+  // close the connection before logging it to reduce latency
+  shutdown(whc->si.fd, 1);
+  drain_bytes = 0;
+  if (fcntl(whc->si.fd, F_SETFL, O_NONBLOCK) >= 0) {
+    while ((read(whc->si.fd, &ch, 1) > 0) && (drain_bytes < MAX_DRAIN_BYTES)) {
+      drain_bytes++;
+    }
+  }
+  close_socket(whc->si.fd);
+  whc->si.fd = -1;
+
+Ltransaction_close:
+
+  // if we didn't close already, close connection
+  if (whc->si.fd != -1) {
+    shutdown(whc->si.fd, 1);
+    drain_bytes = 0;
+    if (fcntl(whc->si.fd, F_SETFL, O_NONBLOCK) >= 0) {
+      while ((read(whc->si.fd, &ch, 1) > 0) && (drain_bytes < MAX_DRAIN_BYTES)) {
+        drain_bytes++;
+      }
+    }
+    close_socket(whc->si.fd);
+  }
+
+  // clean up memory
+  WebHttpContextDestroy(whc);
+}
+
+//-------------------------------------------------------------------------
+// WebHttpSetErrorResponse
+//
+// Formulates a page to return on an HttpStatus condition
+//-------------------------------------------------------------------------
+
+void
+WebHttpSetErrorResponse(WebHttpContext * whc, HttpStatus_t error)
+{
+  //-----------------------------------------------------------------------
+  // FIXME: HARD-CODED HTML HELL!!!
+  //-----------------------------------------------------------------------
+
+  static const char a[] = "<HTML>\n<Head>\n<TITLE>";
+  static const char b[] = "</TITLE>\n</HEAD>\n<BODY bgcolor=\"#FFFFFF\"><h1>\n";
+  static const char c[] = "</h1>\n</BODY>\n</HTML>\n";
+  int errorMsgLen = strlen(httpStatStr[error]);
+
+  // reset the buffer
+  whc->response_bdy->reUse();
+
+  // fill in the buffer
+  whc->response_bdy->copyFrom(a, strlen(a));
+  whc->response_bdy->copyFrom(httpStatStr[error], errorMsgLen);
+  whc->response_bdy->copyFrom(b, strlen(b));
+  whc->response_bdy->copyFrom(httpStatStr[error], errorMsgLen);
+  whc->response_bdy->copyFrom(c, strlen(c));
+}
+
+//-------------------------------------------------------------------------
+// WebHttpAddDocRoot_Xmalloc
+//-------------------------------------------------------------------------
+
+char *
+WebHttpAddDocRoot_Xmalloc(WebHttpContext * whc, const char *file, int file_len)
+{
+  char *doc_root_file = (char *)ats_malloc(file_len + whc->doc_root_len + 1);
+
+  memcpy(doc_root_file, whc->doc_root, whc->doc_root_len);
+  memcpy(doc_root_file + whc->doc_root_len, file, file_len);
+  *(doc_root_file + whc->doc_root_len + file_len) = '\0';
+
+  Debug("web2", "DocRoot request file: %s", doc_root_file);
+  
+  return doc_root_file;
+}
diff --git a/mgmt/web2/WebHttp.h b/mgmt/web2/WebHttp.h
new file mode 100644
index 00000000..00beb852
--- /dev/null
+++ b/mgmt/web2/WebHttp.h
@@ -0,0 +1,45 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+ *
+ *  WebHttp.h - code to process requests, and create responses
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _WEB_HTTP_H_
+#define _WEB_HTTP_H_
+
+#include "WebGlobals.h"
+#include "WebHttpContext.h"
+#include "WebHttpMessage.h"
+
+#include "P_RecCore.h"
+
+void WebHttpInit();
+void WebHttpHandleConnection(WebHttpConInfo * whci);
+
+void WebHttpSetErrorResponse(WebHttpContext * whc, HttpStatus_t error);
+char *WebHttpAddDocRoot_Xmalloc(WebHttpContext * whc, const char *file, int file_len);
+#endif // _WEB_HTTP_H_
diff --git a/mgmt/web2/WebHttpContext.cc b/mgmt/web2/WebHttpContext.cc
new file mode 100644
index 00000000..cc09a6bc
--- /dev/null
+++ b/mgmt/web2/WebHttpContext.cc
@@ -0,0 +1,108 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/************* ***************************
+ *
+ *  WebHttpContext.cc - the http web-ui transaction state
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include "WebHttpContext.h"
+
+//-------------------------------------------------------------------------
+// WebHttpContextCreate
+//
+// Wraps a WebHttpContext around a WebHttpConInfo and WebHttpConInfo's
+// internal WebContext.  Note that the returned WebHttpContext will
+// keep pointers into the WebHttpConInfo and WebContext structures.
+// Be careful not to delete/free the WebHttpConInfo or WebContext
+// before WebHttpContext is done with them.
+//-------------------------------------------------------------------------
+
+WebHttpContext *
+WebHttpContextCreate(WebHttpConInfo * whci)
+{
+
+  WebHttpContext *whc = (WebHttpContext *)ats_malloc(sizeof(WebHttpContext));
+
+  // memset to 0; note strings are zero'd too
+  memset(whc, 0, sizeof(WebHttpContext));
+
+  whc->request = new httpMessage();
+  whc->response_hdr = new httpResponse();
+  whc->response_bdy = new textBuffer(8192);
+  whc->submit_warn = new textBuffer(256);
+  whc->submit_note = new textBuffer(256);
+  whc->submit_warn_ht = ink_hash_table_create(InkHashTableKeyType_String);
+  whc->submit_note_ht = ink_hash_table_create(InkHashTableKeyType_String);
+  whc->si.fd = whci->fd;
+
+  // keep pointers into the context passed to us
+  whc->client_info = whci->clientInfo;
+  whc->default_file = whci->context->defaultFile;
+  whc->doc_root = whci->context->docRoot;
+  whc->doc_root_len = whci->context->docRootLen;
+
+  // set server_state
+  if (whci->context == &autoconfContext) {
+    whc->server_state |= WEB_HTTP_SERVER_STATE_AUTOCONF;
+  }
+
+  return whc;
+
+}
+
+//-------------------------------------------------------------------------
+// WebHttpContextDestroy
+//-------------------------------------------------------------------------
+
+void
+WebHttpContextDestroy(WebHttpContext * whc)
+{
+  if (whc) {
+    if (whc->request)
+      delete(whc->request);
+    if (whc->response_hdr)
+      delete(whc->response_hdr);
+    if (whc->response_bdy)
+      delete(whc->response_bdy);
+    if (whc->submit_warn)
+      delete(whc->submit_warn);
+    if (whc->submit_note)
+      delete(whc->submit_note);
+    if (whc->query_data_ht)
+      ink_hash_table_destroy_and_xfree_values(whc->query_data_ht);
+    if (whc->post_data_ht)
+      ink_hash_table_destroy_and_xfree_values(whc->post_data_ht);
+    if (whc->submit_warn_ht)
+      ink_hash_table_destroy(whc->submit_warn_ht);
+    if (whc->submit_note_ht)
+      ink_hash_table_destroy(whc->submit_note_ht);
+
+    ats_free(whc->top_level_render_file);
+    ats_free(whc->cache_query_result);
+    ats_free(whc);
+  }
+}
diff --git a/mgmt/web2/WebHttpContext.h b/mgmt/web2/WebHttpContext.h
new file mode 100644
index 00000000..7dca0f14
--- /dev/null
+++ b/mgmt/web2/WebHttpContext.h
@@ -0,0 +1,69 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/************* ***************************
+ *
+ *  WebHttpContext.h - the http web-ui transaction state
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _WEB_HTTP_CONTEXT_H_
+#define _WEB_HTTP_CONTEXT_H_
+
+#include "ink_hash_table.h"
+#include "TextBuffer.h"
+
+#include "WebGlobals.h"
+#include "mgmtapi.h"
+#include "WebHttpMessage.h"
+#include "WebUtils.h"
+
+struct WebHttpContext
+{
+  uint32_t request_state;         // client request state
+  uint32_t server_state;          // bit-mask of enabled server features
+  httpMessage *request;         // client request
+  httpResponse *response_hdr;   // server response headers
+  textBuffer *response_bdy;     // server repsonse body
+  textBuffer *submit_warn;      // submit warn text
+  textBuffer *submit_note;      // submit info text
+  InkHashTable *query_data_ht;  // client query name/value hash-table
+  InkHashTable *post_data_ht;   // client POST name/value hash-table
+  InkHashTable *submit_warn_ht; // ht of warn submission records
+  InkHashTable *submit_note_ht; // ht of info submission records
+  sockaddr_in *client_info;     // client conection information
+  SocketInfo si;                // socket information
+
+  char *top_level_render_file;  // top-level file to render
+  char *cache_query_result;     // cache inspector query result
+
+  const char *default_file;     // default file
+  const char *doc_root;         // document root
+  int doc_root_len;             // length of doc_root
+};
+
+WebHttpContext *WebHttpContextCreate(WebHttpConInfo * whci);
+void WebHttpContextDestroy(WebHttpContext * whc);
+
+#endif // _WEB_HTTP_CONTEXT_H_
diff --git a/mgmt/web2/WebHttpMessage.cc b/mgmt/web2/WebHttpMessage.cc
new file mode 100644
index 00000000..9a7336bf
--- /dev/null
+++ b/mgmt/web2/WebHttpMessage.cc
@@ -0,0 +1,576 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_string.h"
+#include "ink_time.h"
+
+#include "WebUtils.h"
+#include "WebHttpMessage.h"
+#include "TextBuffer.h"
+#include "MIME.h"
+#include "I_Version.h"
+#include "Main.h"
+
+/****************************************************************************
+ *
+ *  WebHttpMessage.cc - classes to store information about incoming requests
+ *                        and create hdrs for outgoing requests
+ *
+ *
+ *
+ ****************************************************************************/
+
+const char *const httpStatStr[] = {
+  "100 Continue\r\n",
+  "101 Switching Protocols\r\n",
+  "200 OK\r\n",
+  "201 Created\r\n",
+  "202 Accepted\r\n",
+  "203 Non-Authorative Information\r\n",
+  "204 No Content\r\n",
+  "205 Reset Content\r\n",
+  "206 Partial Content\r\n",
+  "300 Multiple Choices\r\n",
+  "301 Moved Permanently\r\n",
+  "302 Moved Temporarily\r\n",
+  "303 See Other\r\n",
+  "304 Not Modified\r\n",
+  "305 Use Proxy\r\n",
+  "400 Bad Request\r\n",
+  "401 Unauthorized\r\n",
+  "402 Payment Required\r\n",
+  "403 Forbidden\r\n",
+  "404 Not Found\r\n",
+  "500 Internal Server Error\r\n",
+  "501 Not Implemented\r\n",
+  "502 Bad Gateway\r\n",
+  "503 Service Unvailable\r\n",
+  "504 Gateway Timeout\r\n",
+  "505 HTTP Version Not Supported\r\n"
+};
+
+const char *const httpStatCode[] = {
+  "100",
+  "101",
+  "200",
+  "201",
+  "202",
+  "203",
+  "204",
+  "205",
+  "206",
+  "300",
+  "301",
+  "302",
+  "303",
+  "304",
+  "305",
+  "400",
+  "401",
+  "402",
+  "403",
+  "404",
+  "500",
+  "501",
+  "502",
+  "503",
+  "504",
+  "505"
+};
+
+const char *const contentTypeStr[] = {
+  "text/plain",
+  "text/html",
+  "text/css",
+  "text/unknown",
+  "image/gif",
+  "image/jpeg",
+  "image/png",
+  "application/java-vm",
+  "application/x-javascript",
+  "application/x-x509-ca-cert",
+  "application/x-ns-proxy-autoconfig",
+  "application/zip"
+};
+
+
+// httpMessage::httpMessage()
+//
+httpMessage::httpMessage()
+{
+
+  method = METHOD_NONE;
+  header = NULL;
+  body = NULL;
+  scheme = SCHEME_NONE;
+  file = NULL;
+  query = NULL;
+  conLen = -1;
+  referer = NULL;
+  conType_str = NULL;
+  authMessage = NULL;
+  parser = new Tokenizer(" \t\n\r");
+  modificationTime = -1;
+  modContentLength = -1;
+  client_request = NULL;
+}
+
+void
+httpMessage::getLogInfo(const char **request)
+{
+  *request = client_request;
+}
+
+// returns zero if everything was OK or non-zero if
+// the request was malformed
+int
+httpMessage::addRequestLine(char *request)
+{
+
+  const char *method_str;
+  const char *scheme_str;
+  const char *URI;
+  char *tmp;
+  int requestLen;
+
+  // Make a copy of the string so that we
+  //   log it later
+  client_request = ats_strdup(request);
+  requestLen = strlen(client_request);
+  if (requestLen > 0 && client_request[requestLen - 1] == '\r') {
+    client_request[requestLen - 1] = '\0';
+  }
+
+  parser->Initialize(request, SHARE_TOKS);
+  method_str = (*parser)[0];
+  URI = (*parser)[1];
+  scheme_str = (*parser)[2];
+
+  // Check for an empty request
+  if (method_str == NULL) {
+    return 1;
+  }
+  // Determine Method
+  if (strcmp(method_str, "GET") == 0) {
+    method = METHOD_GET;
+  } else if (strcmp(method_str, "POST") == 0) {
+    method = METHOD_POST;
+  } else if (strcmp(method_str, "HEAD") == 0) {
+    method = METHOD_HEAD;
+  } else {
+    method = METHOD_NONE;
+  }
+
+  if (URI == NULL) {
+    return 1;
+  }
+  // Get the scheme
+  //
+  //  We only understand HTTP/1.0
+  //
+  //  If a browser asks for HTTP, we send back 1.0
+  //  If there is no scheme, assume HTTP
+  //  If there is another scheme, mark it unknown
+  //
+  if (scheme_str == NULL) {
+    scheme = SCHEME_NONE;
+  } else {
+
+    if (strncasecmp(scheme_str, "HTTP", 4) == 0) {
+      scheme = SCHEME_HTTP;
+    } else if (strncasecmp(scheme_str, "SHTTP", 5) == 0) {
+      scheme = SCHEME_SHTTP;
+    } else {
+      scheme = SCHEME_UNKNOWN;
+    }
+  }
+
+  // Now sort out the file verses query portion of the
+  // the request
+  //
+  // First check to see if the client sent us a full URL
+  if (strncmp("http://", URI, 7) == 0) {
+    URI = strstr(URI + 7, "/");
+    if (URI == NULL) {
+      return 1;
+    }
+  }
+  // Now allocate space for the document path portion
+  //  of the URI along with the query if any
+  unsigned int amtToAllocate = strlen(URI) + 1;
+  file = new char[amtToAllocate];
+  ink_strlcpy(file, URI, amtToAllocate + 1);
+  tmp = strstr(file, "?");
+  if (tmp != NULL) {
+    // There is a form submission
+    *tmp = '\0';
+    query = tmp + 1;
+    // Remove trailing "\"
+    query[strlen(query)] = '\0';
+  }
+
+  return 0;
+}
+
+void
+httpMessage::addHeader(char *hdr)
+{
+
+  const char *authType;
+  const char *auth;
+  int len;
+  const char *hdrName;
+  const char *hdrArg1;
+
+  parser->Initialize(hdr, SHARE_TOKS);
+  hdrName = (*parser)[0];
+  hdrArg1 = (*parser)[1];
+
+  // All headers require at least tokens
+  if (hdrName == NULL || hdrArg1 == NULL) {
+    return;
+  }
+
+  if (strncasecmp("Content-length:", hdrName, 15) == 0) {
+    conLen = atoi(hdrArg1);
+  } else if (strncasecmp("Referer:", hdrName, 8) == 0) {
+      unsigned int amtToAllocate = strlen(hdrArg1);
+      referer = new char[amtToAllocate + 1];
+      ink_strlcpy(referer, hdrArg1, amtToAllocate + 1);
+  } else if (strncasecmp("Content-type:", hdrName, 13) == 0) {
+    unsigned int amtToAllocate = strlen(hdrArg1);
+    conType_str = new char[amtToAllocate + 1];
+    ink_strlcpy(conType_str, hdrArg1, amtToAllocate + 1);
+  } else if (strncasecmp("Authorization:", hdrName, 14) == 0) {
+    authType = hdrArg1;
+    if (strcmp(authType, "Basic") == 0) {
+      auth = (*parser)[2];
+      len = strlen(auth) + 1;
+      authMessage = new char[len];
+      ink_strlcpy(authMessage, auth, len);
+    }
+  } else if (strncasecmp("If-Modified-Since:", hdrName, 18) == 0) {
+    // Disabled due to thread safety issues
+    getModDate();
+  }
+}
+
+
+// httpMessage::getModDate()
+//
+//  A function to extract info from the If-Modified-Since http
+//   header.
+//
+//  Currently brokens since both strptime and mktime are not thread
+//   safe
+//
+void
+httpMessage::getModDate()
+{
+
+  // Since the dates have spaces in them, we have to recontruct
+  //   them.  Sigh.
+  int i = 1;
+  int numDateFields;
+  int dateSize = 0;
+  char *dateStr;
+  const char *clStr;
+  int tmpLen;
+  Tokenizer *equalTok = NULL;
+
+  // First, figure out the number of fields
+  for (i = 1; (*parser)[i] != NULL && strstr((*parser)[i++], ";") == NULL;);
+  numDateFields = i - 1;
+
+  if (numDateFields > 0) {
+
+    // Next, figure out the size of the string we need
+    for (i = 0; i < numDateFields; i++) {
+      dateSize += strlen((*parser)[i + 1]);
+    }
+    dateStr = new char[dateSize + 1 + numDateFields];
+    *dateStr = '\0';
+
+    // Rebuild the date string from the parsed
+    //   stuff
+    for (i = 0; i < numDateFields; i++) {
+      ink_strlcat(dateStr, (*parser)[i + 1], dateSize + 1);
+      tmpLen = strlen(dateStr);
+      dateStr[tmpLen] = ' ';
+      dateStr[tmpLen + 1] = '\0';
+    }
+
+    // There could be junk of the end of array like a ;
+    tmpLen = strlen(dateStr);
+    while (!isalpha(dateStr[tmpLen])) {
+      dateStr[tmpLen] = '\0';
+      tmpLen--;
+    }
+
+    modificationTime = mime_parse_date(dateStr);
+    delete[]dateStr;
+
+    // Now figure out the content length from if modified
+    if (parser->getNumber() > numDateFields + 1) {
+      clStr = (*parser)[numDateFields + 1];
+      equalTok = new Tokenizer("=\r\n");
+      equalTok->Initialize(clStr);
+      if (strcasecmp("length", (*equalTok)[0]) == 0) {
+        modContentLength = atoi((*equalTok)[1]);
+      }
+      delete equalTok;
+    }
+  }
+}
+
+// httpMessage::addRequestBody(int fd)
+//
+//  Read the request body of of the socket and make a local
+//     copy of the entire thing.  Return zero if all went ok
+//     or return -1 with there was an error
+int
+httpMessage::addRequestBody(SocketInfo socketD)
+{
+  char *nextRead;
+  int bytesRead = 0;
+  int readResult;
+
+  if (conLen < 0) {
+    return 0;
+  }
+
+  body = new char[conLen + 1];
+  nextRead = body;
+
+  while (bytesRead < conLen) {
+    readResult = socket_read(socketD, nextRead, conLen - bytesRead);
+
+    if (readResult <= 0) {
+      // There was an error on the read.
+      *nextRead = '\0';
+      return -1;
+    } else {
+      bytesRead += readResult;
+      nextRead += readResult;
+    }
+  }
+  *nextRead = '\0';
+  return 0;
+}
+
+httpMessage::~httpMessage()
+{
+  delete[]body;
+  delete[]file;
+  delete[]referer;
+  delete[]conType_str;
+  delete[]authMessage;
+
+  ats_free(client_request);
+  delete parser;
+}
+
+/* 01/14/99 elam -
+ * Commented out because g++ is not happy with iostream.h
+void httpMessage::Print() {
+  cout << "Method: " << method << endl;
+  cout << "File: " << file << endl;
+  cout << "Query: " << query << endl;
+  cout << "Scheme: " << scheme << endl;
+  cout << "Content Length: " << conLen << endl;
+  cout << "First Header: " << header << endl;
+  cout << "Message Body: " << body << endl << endl;
+}
+ */
+
+httpResponse::httpResponse()
+{
+  // Default is no refresh header;
+  refresh = -1;
+  conLen = -1;
+  conType = TEXT_HTML;
+  explicitConType = NULL;
+  refreshURL = NULL;
+  lastMod = -1;
+  authRealm = NULL;
+  dateResponse = NULL;
+  status = STATUS_INTERNAL_SERVER_ERROR;
+  locationURL = NULL;
+  cachable = 1;
+}
+
+httpResponse::~httpResponse()
+{
+  ats_free(explicitConType);
+  ats_free(authRealm);
+  ats_free(refreshURL);
+  ats_free(locationURL);
+  ats_free(dateResponse);
+}
+
+int
+httpResponse::writeHdr(SocketInfo socketD)
+{
+  const char versionStr[] = "HTTP/1.0 ";
+  const char serverStr[] = "Server: ";
+  const char managerStr[] = "Traffic Manager ";
+  const char noStoreStr[] = "Cache-Control: no-store\r\n";
+  const char noCacheStr[] = "Pragma: no-cache\r\n";
+  const char lenStr[] = "Content-length: ";
+  const char refreshStr[] = "Refresh: ";
+  const char authStr[] = "WWW-Authenticate: Basic realm=\"";
+  const char dateStr[] = "Date: ";
+  const char lastModStr[] = "Last-modified: ";
+  const char locationStr[] = "Location: ";
+  const char refreshURLStr[] = "; URL=";
+  time_t currentTime;
+  const int bufSize = 512;
+  char buffer[bufSize];
+  char *reply;
+  int bytesWritten;
+  textBuffer hdr(4096);
+
+  hdr.copyFrom(versionStr, strlen(versionStr));
+
+  // Record the status
+  hdr.copyFrom(httpStatStr[status], strlen(httpStatStr[status]));
+
+  // Record Server Name
+  hdr.copyFrom(serverStr, strlen(serverStr));
+  hdr.copyFrom(managerStr, strlen(managerStr));
+  hdr.copyFrom(appVersionInfo.VersionStr, strlen(appVersionInfo.VersionStr));
+  hdr.copyFrom("\r\n", 2);
+
+  // Record refresh
+  if (refresh >= 0) {
+    hdr.copyFrom(refreshStr, strlen(refreshStr));
+    snprintf(buffer, bufSize - 1, "%d", refresh);
+    hdr.copyFrom(buffer, strlen(buffer));
+    if (refreshURL != NULL) {
+      hdr.copyFrom(refreshURLStr, strlen(refreshURLStr));
+      hdr.copyFrom(refreshURL, strlen(refreshURL));
+    }
+    hdr.copyFrom("\r\n", 2);
+  }
+
+  // Location Header
+  if (locationURL != NULL) {
+    hdr.copyFrom(locationStr, strlen(locationStr));
+    hdr.copyFrom(locationURL, strlen(locationURL));
+    hdr.copyFrom("\r\n", 2);
+  }
+
+  // Always send the current time
+  currentTime = time(NULL);
+  mime_format_date(buffer, currentTime);
+  // We were able to genarate the date string
+  hdr.copyFrom(dateStr, strlen(dateStr));
+  hdr.copyFrom(buffer, strlen(buffer));
+  hdr.copyFrom("\r\n", 2);
+  dateResponse = ats_strdup(buffer);
+
+  // Not cachable if marked not cachable, or has no L-M date
+  if ((getCachable() == 0) || (lastMod == -1)) {
+    // Use "Control-Control: no-store" for HTTP 1.1
+    // compliant browsers.
+    hdr.copyFrom(noStoreStr, strlen(noStoreStr));
+    // For non-1.1 compliant browsers, we'll set
+    // "Pragma: no-cache" just to be safe
+    hdr.copyFrom(noCacheStr, strlen(noCacheStr));
+  } else if (lastMod != -1) {
+    // Send the last modified time if we have it
+    mime_format_date(buffer, lastMod);
+    // We were able to genarate the date string
+    hdr.copyFrom(lastModStr, strlen(lastModStr));
+    hdr.copyFrom(buffer, strlen(buffer));
+    hdr.copyFrom("\r\n", 2);
+  }
+
+  snprintf(buffer, sizeof(buffer), "Content-type: %s\r\n", contentTypeStr[conType]);
+  hdr.copyFrom(buffer, strlen(buffer));
+
+  // Issue an authentication challenge if we are
+  //  authorized
+  if (status == STATUS_UNAUTHORIZED) {
+    hdr.copyFrom(authStr, strlen(authStr));
+    hdr.copyFrom(authRealm, strlen(authRealm));
+    hdr.copyFrom("\"\r\n", 3);
+  }
+
+  if (conLen >= 0) {
+    hdr.copyFrom(lenStr, strlen(lenStr));
+    snprintf(buffer, sizeof(buffer), "%d", conLen);
+    hdr.copyFrom(buffer, strlen(buffer));
+    hdr.copyFrom("\r\n", 2);
+  }
+  // End of Header marked by empty line
+  hdr.copyFrom("\r\n", 2);
+
+  reply = hdr.bufPtr();
+  bytesWritten = socket_write(socketD, reply, strlen(reply));
+  return bytesWritten;
+}
+
+
+void
+httpResponse::setContentType(const char *str)
+{
+  if (str != NULL) {
+    explicitConType = ats_strdup(str);
+  }
+}
+
+void
+httpResponse::setRealm(const char *realm)
+{
+  if (realm != NULL) {
+    authRealm = ats_strdup(realm);
+  }
+}
+
+void
+httpResponse::setRefreshURL(const char *url)
+{
+  if (url != NULL) {
+    refreshURL = ats_strdup(url);
+  }
+}
+
+void
+httpResponse::setLocationURL(const char *url)
+{
+  if (url != NULL) {
+    locationURL = ats_strdup(url);
+  }
+}
+
+
+void
+httpResponse::getLogInfo(const char **date, HttpStatus_t * statusIn, int *length)
+{
+  *date = dateResponse;
+  *statusIn = status;
+  *length = conLen;
+}
diff --git a/mgmt/web2/WebHttpMessage.h b/mgmt/web2/WebHttpMessage.h
new file mode 100644
index 00000000..4649dda4
--- /dev/null
+++ b/mgmt/web2/WebHttpMessage.h
@@ -0,0 +1,287 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _WEB_HTTP_MESSAGE
+#define _WEB_HTTP_MESSAGE
+
+#include <time.h>
+#include "Tokenizer.h"
+#include "WebUtils.h"
+
+/****************************************************************************
+ *
+ *  WebHttpMessage.h - classes to store information about incoming requests
+ *                        and create hdrs for outgoing requests
+ *
+ *
+ *
+ ****************************************************************************/
+
+/* define method       */
+enum Method_t
+{
+  METHOD_NONE = 0,
+  METHOD_OPTIONS,
+  METHOD_GET,
+  METHOD_HEAD,
+  METHOD_POST,
+  METHOD_PUT,
+  METHOD_DELETE,
+  METHOD_TRACE,
+  METHOD_CONNECT
+};
+
+/* defined http status codes constants */
+enum HttpStatus_t
+{
+  STATUS_CONTINUE = 0,
+  STATUS_SWITCHING_PROTOCOL,
+
+  STATUS_OK,
+  STATUS_CREATED,
+  STATUS_ACCEPTED,
+  STATUS_NON_AUTHORITATIVE_INFORMATION,
+  STATUS_NO_CONTENT,
+  STATUS_RESET_CONTENT,
+  STATUS_PARTIAL_CONTENT,
+
+  STATUS_MULTIPLE_CHOICES,
+  STATUS_MOVED_PERMANENTLY,
+  STATUS_MOVED_TEMPORARILY,
+  STATUS_SEE_OTHER,
+  STATUS_NOT_MODIFIED,
+  STATUS_USE_PROXY,
+
+  STATUS_BAD_REQUEST,
+  STATUS_UNAUTHORIZED,
+  STATUS_PAYMENT_REQUIRED,
+  STATUS_FORBIDDEN,
+  STATUS_NOT_FOUND,
+
+  STATUS_INTERNAL_SERVER_ERROR,
+  STATUS_NOT_IMPLEMENTED,
+  STATUS_BAD_GATEWAY,
+  STATUS_SERVICE_UNAVAILABLE,
+  STATUS_GATEWAY_TIMEOUT,
+  STATUS_HTTPVER_NOT_SUPPORTED
+};
+
+/* define scheme type */
+enum Scheme_t
+{
+  SCHEME_UNKNOWN = -1,
+  SCHEME_NONE = 0,
+  SCHEME_HTTP,
+  SCHEME_SHTTP
+};
+
+enum Content_t
+{
+  TEXT_PLAIN = 0,
+  TEXT_HTML,
+  TEXT_CSS,
+  TEXT_UNKNOWN,
+  IMAGE_GIF,
+  IMAGE_JPEG,
+  IMAGE_PNG,
+  APP_JAVA,
+  APP_JAVASCRIPT,
+  APP_X509,
+  APP_AUTOCONFIG,
+  APP_ZIP
+};
+
+extern const char *const httpStatStr[];
+extern const char *const httpStatCode[];
+extern const char *const contentTypeStr[];
+
+class httpMessage
+{
+public:
+  httpMessage();
+  ~httpMessage();
+
+  Method_t getMethod()
+  {
+    return method;
+  };
+  const char *getFile()
+  {
+    return file;
+  };
+  const char *getQuery()
+  {
+    return query;
+  };
+  Scheme_t getScheme()
+  {
+    return scheme;
+  };
+  const char *getHeader()
+  {
+    return header;
+  };
+  char *getBody()
+  {
+    return body;
+  };
+  int getConLen()
+  {
+    return conLen;
+  };
+  const char *getReferer()
+  {
+    if (referer != NULL) {
+      return referer;
+    }
+    return NULL;
+  };
+  const char *getContentType()
+  {
+    return conType_str;
+  };
+  const char *getAuthMessage()
+  {
+    return authMessage;
+  };
+  time_t getModTime()
+  {
+    return modificationTime;
+  };
+
+  int addRequestLine(char *);
+  void addHeader(char *);
+  int addRequestBody(SocketInfo socketD);
+
+//  void Print();
+  void getLogInfo(const char **request);
+private:
+  httpMessage(const httpMessage &);
+  void getModDate();
+  Method_t method;
+  char *file;
+  //char* referer;
+  char *query;
+  Scheme_t scheme;
+  char *header;
+  char *body;
+  int conLen;
+  char *referer;
+  char *conType_str;
+  char *authMessage;
+  Tokenizer *parser;
+  time_t modificationTime;
+  int modContentLength;
+  char *client_request;         // Request as the client sent it.  For logs
+};
+
+class httpResponse
+{
+public:
+  httpResponse();
+  ~httpResponse();
+
+  void setContentType(Content_t ct)
+  {
+    conType = ct;
+  };
+  // If this method is called, it will override the content type
+  // stored in conType. Example: "Content-type: text/html\r\n".
+  void setContentType(const char *str);
+
+  void setLength(int x)
+  {
+    conLen = x;
+  };
+  int getLength()
+  {
+    return conLen;
+  };
+
+  void setStatus(HttpStatus_t s)
+  {
+    status = s;
+  };
+  HttpStatus_t getStatus()
+  {
+    return status;
+  };
+
+
+  void setRefresh(int i)
+  {
+    refresh = i;
+  };
+  int getRefresh()
+  {
+    return refresh;
+  };
+
+  const char *getRefreshURL()
+  {
+    return refreshURL;
+  };
+  void setRefreshURL(const char *url);
+
+  const char *getLocationURL()
+  {
+    return locationURL;
+  };
+  void setLocationURL(const char *url);
+
+  void setRealm(const char *);
+  void setLastMod(time_t lm)
+  {
+    lastMod = lm;
+  };
+
+  void setCachable(int c)
+  {
+    if ((cachable = c) == 0) {
+      lastMod = -1;
+    }
+  }
+  int getCachable()
+  {
+    return cachable;
+  }
+
+  int writeHdr(SocketInfo socketD);
+  void getLogInfo(const char **date, HttpStatus_t * status, int *legth);
+
+private:
+  httpResponse(const httpResponse &);
+  HttpStatus_t status;
+  int refresh;
+  int conLen;
+  Content_t conType;
+  char *explicitConType;
+  char *authRealm;
+  char *refreshURL;
+  char *locationURL;
+  time_t lastMod;
+  int cachable;
+  char *dateResponse;           // for logs
+};
+
+#endif
diff --git a/mgmt/web2/WebHttpSession.cc b/mgmt/web2/WebHttpSession.cc
new file mode 100644
index 00000000..ed45f81a
--- /dev/null
+++ b/mgmt/web2/WebHttpSession.cc
@@ -0,0 +1,218 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+ *
+ *  WebHttpSession.cc - Manage session data
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include "ink_hash_table.h"
+#include "ink_hash_table.h"
+
+#include "mgmtapi.h"
+#include "MgmtUtils.h"
+#include "WebCompatibility.h"
+#include "WebGlobals.h"
+#include "WebHttpSession.h"
+
+//#include "LocalManager.h"
+
+#define SESSION_EXPIRES 600     // 10 minutes
+#define CURRENT_SESSION_EXPIRES 100     // 10 minutes
+#define SESSION_KEY_LEN 8
+
+static InkHashTable *g_session_ht = 0;
+static ink_mutex g_session_mutex;
+
+struct session_ele
+{
+  time_t created;
+  void *data;
+  WebHttpSessionDeleter deleter_func;
+};
+
+//-------------------------------------------------------------------------
+// deleter_main
+//-------------------------------------------------------------------------
+
+static void *
+deleter_main(void *)
+{
+  time_t now;
+  InkHashTableIteratorState htis;
+  InkHashTableEntry *hte;
+  char *key;
+  session_ele *session;
+  int session_count;
+  while (1) {
+    time(&now);
+    ink_mutex_acquire(&wGlobals.submitLock);
+    // mutex_try_acquire to avoid potential deadlocking; not so
+    // critical that we don't delete these objects right now.
+    session_count = 0;
+    if (ink_mutex_try_acquire(&g_session_mutex)) {
+      for (hte = ink_hash_table_iterator_first(g_session_ht, &htis);
+           hte != NULL; hte = ink_hash_table_iterator_next(g_session_ht, &htis)) {
+        key = (char *) ink_hash_table_entry_key(g_session_ht, hte);
+        session = (session_ele *) ink_hash_table_entry_value(g_session_ht, hte);
+        if (now - session->created > SESSION_EXPIRES) {
+          ink_hash_table_delete(g_session_ht, key);
+          session->deleter_func(session->data);
+          ats_free(session);
+        } else {
+          session_count++;
+        }
+      }
+      ink_mutex_release(&g_session_mutex);
+    }
+    ink_mutex_release(&wGlobals.submitLock);
+    // random arbitrary heuristic
+    mgmt_sleep_sec(SESSION_EXPIRES / 10);
+  }
+  return NULL;
+}
+
+//-------------------------------------------------------------------------
+// InkMgmtApiCtxDeleter
+//-------------------------------------------------------------------------
+
+void
+InkMgmtApiCtxDeleter(void *data)
+{
+  TSCfgContextDestroy((TSCfgContext) data);
+}
+
+//-------------------------------------------------------------------------
+// WebHttpSessionInit
+//-------------------------------------------------------------------------
+
+void
+WebHttpSessionInit()
+{
+  time_t now;
+  time(&now);
+  WebSeedRand((long) now);
+  g_session_ht = ink_hash_table_create(InkHashTableKeyType_String);
+  ink_mutex_init(&g_session_mutex, "g_session_mutex");
+  ink_thread_create(deleter_main, NULL);
+}
+
+//-------------------------------------------------------------------------
+// WebHttpSessionStore
+//-------------------------------------------------------------------------
+
+int
+WebHttpSessionStore(char *key, void *data, WebHttpSessionDeleter deleter_func)
+{
+  int err = WEB_HTTP_ERR_OKAY;
+  session_ele *session;
+  void *dummy;
+  time_t now;
+
+  if (!key || !data || !deleter_func) {
+    return WEB_HTTP_ERR_FAIL;
+  }
+  ink_mutex_acquire(&g_session_mutex);
+  if (ink_hash_table_lookup(g_session_ht, key, &dummy)) {
+    err = WEB_HTTP_ERR_FAIL;
+    goto Ldone;
+  }
+  time(&now);
+  session = (session_ele *)ats_malloc(sizeof(session_ele));
+  session->created = now;
+  session->data = data;
+  session->deleter_func = deleter_func;
+  ink_hash_table_insert(g_session_ht, key, (void *) session);
+
+Ldone:
+  ink_mutex_release(&g_session_mutex);
+  return err;
+}
+
+//-------------------------------------------------------------------------
+// WebHttpSessionRetrieve
+//-------------------------------------------------------------------------
+
+int
+WebHttpSessionRetrieve(char *key, void **data)
+{
+  int err;
+  session_ele *session;
+  if (!key) {
+    return WEB_HTTP_ERR_FAIL;
+  }
+  ink_mutex_acquire(&g_session_mutex);
+  if (!ink_hash_table_lookup(g_session_ht, key, (void **) &session)) {
+    err = WEB_HTTP_ERR_FAIL;
+  } else {
+    *data = session->data;
+    err = WEB_HTTP_ERR_OKAY;
+  }
+  ink_mutex_release(&g_session_mutex);
+  return err;
+}
+
+//-------------------------------------------------------------------------
+// WebHttpSessionDelete
+//-------------------------------------------------------------------------
+
+int
+WebHttpSessionDelete(char *key)
+{
+  int err = WEB_HTTP_ERR_OKAY;
+  session_ele *session;
+  if (!key) {
+    return WEB_HTTP_ERR_FAIL;
+  }
+  ink_mutex_acquire(&g_session_mutex);
+  if (!ink_hash_table_lookup(g_session_ht, key, (void **) &session)) {
+    err = WEB_HTTP_ERR_FAIL;
+    goto Ldone;
+  }
+  ink_hash_table_delete(g_session_ht, key);
+  session->deleter_func(session->data);
+  ats_free(session);
+Ldone:
+  ink_mutex_release(&g_session_mutex);
+  return err;
+}
+
+char *
+WebHttpMakeSessionKey_Xmalloc()
+{
+  char *session_key_str = (char *)ats_malloc(SESSION_KEY_LEN + 2);
+  long session_key = WebRand();
+  // note: snprintf takes the buffer length, not the string
+  // length? Add 2 to ats_malloc above to be safe.  ^_^
+  snprintf(session_key_str, SESSION_KEY_LEN + 1, "%lx", session_key);
+  return session_key_str;
+}
+
+
+
+
+
+
diff --git a/mgmt/web2/WebHttpSession.h b/mgmt/web2/WebHttpSession.h
new file mode 100644
index 00000000..e1ec9ade
--- /dev/null
+++ b/mgmt/web2/WebHttpSession.h
@@ -0,0 +1,46 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+ *
+ *  WebHttpSession.h - Manage session data
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _WEB_HTTP_SESSION_
+#define _WEB_HTTP_SESSION_
+
+#include "P_RecCore.h"
+
+typedef void (*WebHttpSessionDeleter) (void *data);
+void InkMgmtApiCtxDeleter(void *data);
+
+void WebHttpSessionInit();
+int WebHttpSessionStore(char *key, void *data, WebHttpSessionDeleter deleter_func);
+int WebHttpSessionRetrieve(char *key, void **data);
+int WebHttpSessionDelete(char *key);
+
+char *WebHttpMakeSessionKey_Xmalloc();
+
+#endif // _WEB_HTTP_SESSION_
diff --git a/mgmt/web2/WebIntrMain.cc b/mgmt/web2/WebIntrMain.cc
new file mode 100644
index 00000000..3cd6988f
--- /dev/null
+++ b/mgmt/web2/WebIntrMain.cc
@@ -0,0 +1,617 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/************* ***************************
+ *
+ *  WebIntrMain.cc - main loop for the Web Interface
+ *
+ *
+ *
+ ****************************************************************************/
+
+#include "libts.h"
+#include "I_Layout.h"
+#include "LocalManager.h"
+#include "Alarms.h"
+#include "WebHttp.h"
+#include "WebGlobals.h"
+#include "MgmtUtils.h"
+#include "WebMgmtUtils.h"
+#include "WebIntrMain.h"
+#include "Diags.h"
+#include "MgmtSocket.h"
+
+//INKqa09866
+#include "TSControlMain.h"
+#include "EventControlMain.h"
+
+#if !defined(linux)
+// Solaris header files forget this one
+extern "C"
+{
+  int usleep(unsigned int useconds);
+}
+#endif
+
+typedef int fd;
+static RecInt autoconf_localhost_only = 1;
+
+#define SOCKET_TIMEOUT 10*60
+
+
+WebInterFaceGlobals wGlobals;
+
+// There are two web ports maintained
+//
+//  One is for administration.  This port serves
+//     all the configuration and monitoring info.
+//     Most sites will have some security features
+//     (authentication and SSL) active on this
+//     port since it system administrator access
+//  The other is for things that we want to serve
+//     insecurely.  Client auto configuration falls
+//     in this category.  The public key for the
+//     administration server is another example
+//
+WebContext autoconfContext;
+
+// Used for storing argument values
+int aconf_port_arg = -1;
+
+// int checkWebContext(WebContext* wctx, char* desc)
+//
+//    Checks out a WebContext to make sure that the
+//      directory exists and that the default file
+//      exists
+//
+//    returns 0 if everything is OK
+//    returns 1 if something is missing
+//
+int
+checkWebContext(WebContext * wctx, const char *desc)
+{
+
+  struct stat fInfo;
+  textBuffer defaultFile(256);
+
+  if (wctx->docRoot == NULL) {
+    mgmt_log(stderr, "[checkWebContext] No document root specified for %s\n", desc);
+    return 1;
+  }
+
+  if (stat(wctx->docRoot, &fInfo) < 0) {
+    mgmt_log(stderr, "[checkWebContext] Unable to access document root '%s' for %s : %s\n",
+             wctx->docRoot, desc, strerror(errno));
+    return 1;
+  }
+
+  if (!(fInfo.st_mode & S_IFDIR)) {
+    mgmt_log(stderr, "[checkWebContext] Document root '%s' for %s is not a directory\n", wctx->docRoot, desc);
+    return 1;
+  }
+
+  if (wctx->defaultFile == NULL) {
+    mgmt_log(stderr, "[checkWebContext] No default document specified for %s\n", desc);
+    return 1;
+  }
+
+  defaultFile.copyFrom(wctx->docRoot, strlen(wctx->docRoot));
+  defaultFile.copyFrom("/", 1);
+  defaultFile.copyFrom(wctx->defaultFile, strlen(wctx->defaultFile));
+
+  if (stat(defaultFile.bufPtr(), &fInfo) < 0) {
+    mgmt_log(stderr, "Unable to access default document, %s, for %s : %s\n", wctx->defaultFile, desc, strerror(errno));
+    return 1;
+  }
+
+  if (!(fInfo.st_mode & S_IFREG)) {
+    mgmt_log(stderr, "[checkWebContext] Default document for %s is not a file\n", desc);
+    return 1;
+  }
+
+  return 0;
+}
+
+
+//  fd newUNIXsocket(char* fpath)
+//
+//  returns a file descriptor associated with a new socket
+//    with the specified file path
+//
+//  returns -1 if socket could not be created
+//
+//  Thread Safe: NO!  Call only from main Web interface thread
+//
+static fd
+newUNIXsocket(char *fpath)
+{
+  // coverity[var_decl]
+  struct sockaddr_un serv_addr;
+  int servlen;
+  fd socketFD;
+  int one = 1;
+
+  unlink(fpath);
+  socketFD = socket(AF_UNIX, SOCK_STREAM, 0);
+
+  if (socketFD < 0) {
+    mgmt_log(stderr, "[newUNIXsocket] Unable to create socket: %s", strerror(errno));
+    return socketFD;
+  }
+
+  ink_zero(serv_addr);
+  serv_addr.sun_family = AF_UNIX;
+  ink_strlcpy(serv_addr.sun_path, fpath, sizeof(serv_addr.sun_path));
+#if defined(darwin) || defined(freebsd)
+  servlen = sizeof(struct sockaddr_un);
+#else
+  servlen = strlen(serv_addr.sun_path) + sizeof(serv_addr.sun_family);
+#endif
+  if (setsockopt(socketFD, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(int)) < 0) {
+    mgmt_log(stderr, "[newUNIXsocket] Unable to set socket options: %s\n", strerror(errno));
+  }
+
+  if ((bind(socketFD, (struct sockaddr *) &serv_addr, servlen)) < 0) {
+    mgmt_log(stderr, "[newUNIXsocket] Unable to bind socket: %s\n", strerror(errno));
+    close_socket(socketFD);
+    return -1;
+  }
+
+  if (chmod(fpath, 00755) < 0) {
+    mgmt_log(stderr, "[newUNIXsocket] Unable to chmod unix-domain socket: %s\n", strerror(errno));
+    close_socket(socketFD);
+    return -1;
+  }
+
+  if ((listen(socketFD, 5)) < 0) {
+    mgmt_log(stderr, "[newUNIXsocket] Unable to listen on socket: %s", strerror(errno));
+    close_socket(socketFD);
+    return -1;
+  }
+  // Set the close on exec flag so our children do not
+  //  have this socket open
+  if (fcntl(socketFD, F_SETFD, 1) < 0) {
+    mgmt_elog(stderr, errno, "[newUNIXSocket] Unable to set close on exec flag\n");
+  }
+
+  return socketFD;
+}
+
+//  fd newTcpSocket(int port)
+//
+//  returns a file descriptor associated with a new socket
+//    on the specified port
+//
+//  If the socket could not be created, returns -1
+//
+//  Thread Safe: NO!  Call only from main Web interface thread
+//
+static fd
+newTcpSocket(int port)
+{
+  struct sockaddr_in socketInfo;
+  fd socketFD;
+  int one = 1;
+
+  memset(&socketInfo, 0, sizeof(sockaddr_in));
+
+  // Create the new TCP Socket
+  if ((socketFD = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
+    mgmt_fatal(stderr, errno, "[newTcpSocket]: %s", "Unable to Create Socket\n");
+    return -1;
+  }
+  // Specify our port number is network order
+  memset(&socketInfo, 0, sizeof(socketInfo));
+  socketInfo.sin_family = AF_INET;
+  socketInfo.sin_port = htons(port);
+  if (autoconf_localhost_only == 1) {
+    socketInfo.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+  } else {
+    socketInfo.sin_addr.s_addr = htonl(INADDR_ANY);
+  }
+
+  // Allow for immediate re-binding to port
+  if (setsockopt(socketFD, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof(int)) < 0) {
+    mgmt_fatal(stderr, errno, "[newTcpSocket] Unable to set socket options.\n");
+  }
+  // Bind the port to the socket
+  if (bind(socketFD, (sockaddr *) & socketInfo, sizeof(socketInfo)) < 0) {
+    mgmt_elog(stderr, 0, "[newTcpSocket] Unable to bind port %d to socket: %s\n", port, strerror(errno));
+    close_socket(socketFD);
+    return -1;
+  }
+  // Listen on the new socket
+  if (listen(socketFD, 5) < 0) {
+    mgmt_elog(stderr, errno, "[newTcpSocket] %s\n", "Unable to listen on the socket");
+    close_socket(socketFD);
+    return -1;
+  }
+  // Set the close on exec flag so our children do not
+  //  have this socket open
+  if (fcntl(socketFD, F_SETFD, 1) < 0) {
+    mgmt_elog(stderr, errno, "[newTcpSocket] Unable to set close on exec flag\n");
+  }
+
+  return socketFD;
+}
+
+// Keep track of the number of service threads for debugging
+//  purposes
+static volatile int32_t numServiceThr = 0;
+
+void *
+serviceThrReaper(void * /* arg ATS_UNUSED */)
+{
+  int numJoined;
+
+  lmgmt->syslogThrInit();
+
+  while (1) {
+    numJoined = 0;
+
+    // coverity[lock][lockagain]
+    ink_mutex_acquire(&wGlobals.serviceThrLock);
+
+    for (int i = 0; i < MAX_SERVICE_THREADS; i++) {
+      if (wGlobals.serviceThrArray[i].threadId != 0) {
+        if (wGlobals.serviceThrArray[i].waitingForJoin == true) {
+
+          //fprintf(stderr, "Joining on thread %d in slot %d\n",
+          //       wGlobals.serviceThrArray[i].threadId, i);
+
+          // Join on threads that have exited so we recycle their thrIds and
+          //     stack space
+          ink_assert(wGlobals.serviceThrArray[i].threadId > 0);
+          ink_thread_join(wGlobals.serviceThrArray[i].threadId);
+
+          wGlobals.serviceThrArray[i].fd = -1;
+          wGlobals.serviceThrArray[i].threadId = 0;
+          wGlobals.serviceThrArray[i].startTime = 0;
+          wGlobals.serviceThrArray[i].waitingForJoin = false;
+          wGlobals.serviceThrArray[i].alreadyShutdown = false;
+
+          numJoined++;
+        }
+      }
+    }
+
+    ink_mutex_release(&wGlobals.serviceThrLock);
+
+    for (int j = 0; j < numJoined; j++) {
+#if defined(darwin)
+      ink_sem_post(wGlobals.serviceThrCount);
+#else
+      ink_sem_post(&wGlobals.serviceThrCount);
+#endif
+      ink_atomic_increment((int32_t *) & numServiceThr, -1);
+    }
+
+    usleep(300000);
+  }
+
+  return NULL;
+}                               // END serviceThrReaper()
+
+void *
+webIntr_main(void *)
+{
+  fd socketFD = -1;             // FD for incoming HTTP connections
+  fd autoconfFD = -1;           // FD for incoming autoconf connections
+  fd clientFD = -1;             // FD for accepted connections
+  fd mgmtapiFD = -1;            // FD for the api interface to issue commands
+  fd eventapiFD = -1;           // FD for the api and clients to handle event callbacks
+
+  // dg: added init to get rid of compiler warnings
+  fd acceptFD = 0;              // FD that is ready for accept
+  UIthr_t serviceThr = NO_THR;  // type for new service thread
+
+  struct sockaddr_in *clientInfo;       // Info about client connection
+  ink_thread thrId;             // ID of service thread we just spawned
+  fd_set selectFDs;             // FD set passed to select
+  int publicPort = -1;          // Port for incoming autoconf connections
+#if !defined(linux)
+  sigset_t allSigs;             // Set of all signals
+#endif
+  char pacFailMsg[] = "Auto-Configuration Service Failed to Initialize";
+  //  char gphFailMsg[] = "Dynamic Graph Service Failed to Initialize";
+  char mgmtapiFailMsg[] = "Traffic server management API service Interface Failed to Initialize.";
+
+  RecInt tempInt;
+  bool found;
+
+  int addrLen;
+  int i;
+
+#if !defined(linux)
+  // Start by blocking all signals
+  sigfillset(&allSigs);
+  ink_thread_sigsetmask(SIG_SETMASK, &allSigs, NULL);
+#endif
+
+  lmgmt->syslogThrInit();
+
+  // Set up the threads management
+#if defined(darwin)
+  static int qnum = 0;
+  char sname[NAME_MAX];
+  qnum++;
+  snprintf(sname,NAME_MAX,"%s%d","WebInterfaceMutex",qnum);
+  ink_sem_unlink(sname); // FIXME: remove, semaphore should be properly deleted after usage
+  wGlobals.serviceThrCount = ink_sem_open(sname, O_CREAT | O_EXCL, 0777, MAX_SERVICE_THREADS);
+#else /* !darwin */
+  ink_sem_init(&wGlobals.serviceThrCount, MAX_SERVICE_THREADS);
+#endif /* !darwin */
+  ink_mutex_init(&wGlobals.serviceThrLock, "Web Interface Mutex");
+  wGlobals.serviceThrArray = new serviceThr_t[MAX_SERVICE_THREADS];
+  for (i = 0; i < MAX_SERVICE_THREADS; i++) {
+    // coverity[missing_lock]
+    wGlobals.serviceThrArray[i].threadId = 0;
+    // coverity[missing_lock]
+    wGlobals.serviceThrArray[i].fd = -1;
+    // coverity[missing_lock]
+    wGlobals.serviceThrArray[i].startTime = 0;
+    // coverity[missing_lock]
+    wGlobals.serviceThrArray[i].waitingForJoin = false;
+  }
+  ink_thread_create(serviceThrReaper, NULL);
+
+  // Init mutex to only allow one submissions at a time
+  ink_mutex_init(&wGlobals.submitLock, "Submission Mutex");
+
+  // Fix for INKqa10514
+  found = (RecGetRecordInt("proxy.config.admin.autoconf.localhost_only", &autoconf_localhost_only) == REC_ERR_OKAY);
+  ink_assert(found);
+
+  // Set up the client autoconfiguration context
+  //
+  //  Since autoconf is public access, turn security
+  //     features off
+  if (aconf_port_arg > 0) {
+    publicPort = aconf_port_arg;
+  } else {
+    found = (RecGetRecordInt("proxy.config.admin.autoconf_port", &tempInt) == REC_ERR_OKAY);
+    publicPort = (int) tempInt;
+    ink_assert(found);
+  }
+  Debug("ui", "[WebIntrMain] Starting Client AutoConfig Server on Port %d", publicPort);
+
+  found = (RecGetRecordString_Xmalloc("proxy.config.admin.autoconf.doc_root", &(autoconfContext.docRoot)) == REC_ERR_OKAY);
+  ink_assert(found);
+
+  if (autoconfContext.docRoot == NULL) {
+    mgmt_fatal(stderr, 0, "[WebIntrMain] No Client AutoConf Root\n");
+  } else {
+    struct stat s;
+    int err;
+
+    if ((err = stat(autoconfContext.docRoot, &s)) < 0) {
+      ats_free(autoconfContext.docRoot);
+      autoconfContext.docRoot = ats_strdup(Layout::get()->sysconfdir);
+      if ((err = stat(autoconfContext.docRoot, &s)) < 0) {
+        mgmt_elog(0, "[WebIntrMain] unable to stat() directory '%s': %d %d, %s\n",
+                autoconfContext.docRoot, err, errno, strerror(errno));
+        mgmt_elog(0, "[WebIntrMain] please set the 'TS_ROOT' environment variable\n");
+        mgmt_fatal(stderr, 0, "[WebIntrMain] No Client AutoConf Root\n");
+      }
+    }
+    autoconfContext.docRootLen = strlen(autoconfContext.docRoot);
+  }
+  autoconfContext.defaultFile = "/proxy.pac";
+
+  // INKqa09866
+  // fire up interface for ts configuration through API; use absolute path from root to
+  // set up socket paths;
+  char api_sock_path[1024];
+  char event_sock_path[1024];
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+
+  bzero(api_sock_path, 1024);
+  bzero(event_sock_path, 1024);
+  snprintf(api_sock_path, sizeof(api_sock_path), "%s/mgmtapisocket", (const char *)rundir);
+  snprintf(event_sock_path, sizeof(event_sock_path), "%s/eventapisocket", (const char *)rundir);
+
+  // INKqa12562: MgmtAPI sockets should be created with 775 permission
+  mode_t oldmask = umask(S_IWOTH);
+  if ((mgmtapiFD = newUNIXsocket(api_sock_path)) < 0) {
+    mgmt_log(stderr, "[WebIntrMain] Unable to set up socket for handling management API calls. API socket path = %s\n",
+             api_sock_path);
+    lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_WEB_ERROR, mgmtapiFailMsg);
+  }
+
+  if ((eventapiFD = newUNIXsocket(event_sock_path)) < 0) {
+    mgmt_log(stderr,
+             "[WebIntrMain] Unable to set up so for handling management API event calls. Event Socket path: %s\n",
+             event_sock_path);
+  }
+  umask(oldmask);
+
+  // launch threads
+  // create thread for mgmtapi
+  ink_thread_create(ts_ctrl_main, &mgmtapiFD);
+  ink_thread_create(event_callback_main, &eventapiFD);
+
+  // initialize mgmt api plugins
+  // mgmt_plugin_init(config_path);
+
+  // Check our web contexts to make sure everything is
+  //  OK.  If it is, go ahead and fire up the interfaces
+  if (checkWebContext(&autoconfContext, "Browser Auto-Configuration") != 0) {
+    lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_WEB_ERROR, pacFailMsg);
+  } else {
+    if ((autoconfFD = newTcpSocket(publicPort)) < 0) {
+      mgmt_elog(stderr, errno, "[WebIntrMain] Unable to start client autoconf server\n");
+      lmgmt->alarm_keeper->signalAlarm(MGMT_ALARM_WEB_ERROR, pacFailMsg);
+    }
+  }
+
+  // Initialze WebHttp Module
+  WebHttpInit();
+
+  while (1) {
+    FD_ZERO(&selectFDs);
+
+    if (socketFD >= 0) {
+      FD_SET(socketFD, &selectFDs);
+    }
+
+    if (autoconfFD >= 0) {
+      FD_SET(autoconfFD, &selectFDs);
+    }
+
+    // TODO: Should we check return value?
+    mgmt_select(FD_SETSIZE, &selectFDs, (fd_set *) NULL, (fd_set *) NULL, NULL);
+
+    if (autoconfFD >= 0 && FD_ISSET(autoconfFD, &selectFDs)) {
+      acceptFD = autoconfFD;
+      serviceThr = AUTOCONF_THR;
+    } else {
+      ink_assert(!"[webIntrMain] Error on mgmt_select()\n");
+    }
+#if defined(darwin)
+    ink_sem_wait(wGlobals.serviceThrCount);
+#else
+    ink_sem_wait(&wGlobals.serviceThrCount);
+#endif
+    ink_atomic_increment((int32_t *) & numServiceThr, 1);
+
+    // coverity[alloc_fn]
+    clientInfo = (struct sockaddr_in *)ats_malloc(sizeof(struct sockaddr_in));
+    addrLen = sizeof(struct sockaddr_in);
+
+    // coverity[noescape]
+    if ((clientFD = mgmt_accept(acceptFD, (sockaddr *) clientInfo, &addrLen)) < 0) {
+      mgmt_log(stderr, "[WebIntrMain]: %s%s\n", "Accept on incoming connection failed: ", strerror(errno));
+#if defined(darwin)
+      ink_sem_post(wGlobals.serviceThrCount);
+#else
+      ink_sem_post(&wGlobals.serviceThrCount);
+#endif
+      ink_atomic_increment((int32_t *) & numServiceThr, -1);
+    } else {                    // Accept succeeded
+      if (safe_setsockopt(clientFD, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int)) < 0) {
+        mgmt_log(stderr, "[WebIntrMain]Failed to set sock options: %s\n", strerror(errno));
+      }
+
+      // Accept OK
+      ink_mutex_acquire(&wGlobals.serviceThrLock);
+
+      // If this a web manager, make sure that it is from an allowed ip addr
+      if (serviceThr == AUTOCONF_THR && autoconf_localhost_only != 0 &&
+          strcmp(inet_ntoa(clientInfo->sin_addr), "127.0.0.1") != 0) {
+        mgmt_log("WARNING: connect by disallowed client %s, closing\n", inet_ntoa(clientInfo->sin_addr));
+#if defined(darwin)
+        ink_sem_post(wGlobals.serviceThrCount);
+#else
+        ink_sem_post(&wGlobals.serviceThrCount);
+#endif
+        ink_atomic_increment((int32_t *) & numServiceThr, -1);
+        ats_free(clientInfo);
+        close_socket(clientFD);
+      } else {                  // IP is allowed
+
+        for (i = 0; i < MAX_SERVICE_THREADS; i++) {
+          if (wGlobals.serviceThrArray[i].threadId == 0) {
+            //
+            wGlobals.serviceThrArray[i].fd = clientFD;
+            wGlobals.serviceThrArray[i].startTime = time(NULL);
+            wGlobals.serviceThrArray[i].waitingForJoin = false;
+            wGlobals.serviceThrArray[i].alreadyShutdown = false;
+            wGlobals.serviceThrArray[i].type = serviceThr;
+            wGlobals.serviceThrArray[i].clientInfo = clientInfo;
+            thrId = ink_thread_create(serviceThrMain, &wGlobals.serviceThrArray[i], 0);
+            // fprintf (stderr, "New Service Thread %d in slot %d\n", thrId, i);
+
+            if (thrId > 0) {
+              wGlobals.serviceThrArray[i].threadId = thrId;
+            } else {
+              // Failed to create thread
+              mgmt_elog(stderr, errno, "[WebIntrMain] Failed to create service thread\n");
+              wGlobals.serviceThrArray[i].threadId = 0;
+              wGlobals.serviceThrArray[i].fd = -1;
+              close_socket(clientFD);
+#if defined(darwin)
+              ink_sem_post(wGlobals.serviceThrCount);
+#else
+              ink_sem_post(&wGlobals.serviceThrCount);
+#endif
+              ink_atomic_increment((int32_t *) & numServiceThr, -1);
+            }
+
+            break;
+          } else if (i == MAX_SERVICE_THREADS - 1) {
+            mgmt_fatal(stderr, 0, "[WebIntrMain] Syncronizaion Failure\n");
+            _exit(1);
+          }
+        }
+      }
+
+      ink_mutex_release(&wGlobals.serviceThrLock);
+    }
+  }                             // end while(1)
+  ink_release_assert(!"impossible");    // should never get here
+  return NULL;
+}
+
+// void* serviceThrMain(void* info)
+//
+// Thread main for any type of service thread
+//
+void *
+serviceThrMain(void *info)
+{
+  serviceThr_t *threadInfo = (serviceThr_t *) info;
+  WebHttpConInfo httpInfo;
+
+  lmgmt->syslogThrInit();
+
+  // Do our work
+  switch (threadInfo->type) {
+  case NO_THR:                 // dg: added to handle init value
+    ink_assert(false);
+    break;
+  case AUTOCONF_THR:
+    httpInfo.fd = threadInfo->fd;
+    httpInfo.context = &autoconfContext;
+    httpInfo.clientInfo = threadInfo->clientInfo;
+    WebHttpHandleConnection(&httpInfo);
+    break;
+  default:
+    // Handled here:
+    // GRAPH_THR
+    break;
+  }
+
+  ats_free(threadInfo->clientInfo);
+
+  // Mark ourselves ready to be reaped
+  ink_mutex_acquire(&wGlobals.serviceThrLock);
+
+  threadInfo->waitingForJoin = true;
+  threadInfo->fd = -1;
+
+  ink_mutex_release(&wGlobals.serviceThrLock);
+
+  // Call exit so that we properly release system resources
+  ink_thread_exit(NULL);
+  return NULL;                  // No Warning
+}
diff --git a/mgmt/web2/WebIntrMain.h b/mgmt/web2/WebIntrMain.h
new file mode 100644
index 00000000..ce78f1b4
--- /dev/null
+++ b/mgmt/web2/WebIntrMain.h
@@ -0,0 +1,42 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _WEB_INTR_MAIN_H_
+#define _WEB_INTR_MAIN_H_
+
+/****************************************************************************
+ *
+ *  WebIntrMain.h - main loop for the Web Interface
+ *
+ ****************************************************************************/
+
+struct WebContext;
+
+#include "P_RecCore.h"
+
+void *webIntr_main(void *);
+void *serviceThrMain(void *info);
+
+extern int aconf_port_arg;
+
+#endif
diff --git a/mgmt/web2/WebOverview.cc b/mgmt/web2/WebOverview.cc
new file mode 100644
index 00000000..3084eb88
--- /dev/null
+++ b/mgmt/web2/WebOverview.cc
@@ -0,0 +1,846 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+ *
+ *  WebOverview.cc - code to overview page
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_platform.h"
+
+#include "WebOverview.h"
+#include "WebGlobals.h"
+#include "WebMgmtUtils.h"
+
+#include "LocalManager.h"
+#include "ClusterCom.h"
+#include "MgmtUtils.h"
+#include "MgmtDefs.h"
+#include "Diags.h"
+
+// Make this pointer to avoid nasty destruction
+//   problems do to alarm
+//   fork, execl, exit squences
+overviewPage *overviewGenerator;
+
+overviewRecord::overviewRecord(unsigned long inet_addr, bool local, ClusterPeerInfo * cpi)
+{
+
+  char *name_l;                 // hostname looked up from node record
+  bool name_found;
+  struct in_addr nameFailed;
+
+  inetAddr = inet_addr;
+
+  this->up = false;
+  this->localNode = local;
+
+  // If this is the local node, there is no cluster peer info
+  //   record.  Remote nodes require a cluster peer info record
+  ink_assert((local == false && cpi != NULL)
+             || (local == true && cpi == NULL));
+
+  // Set up the copy of the records array and initialize it
+  if (local == true) {
+    node_rec_data.num_recs = 0;
+    node_rec_data.recs = NULL;
+    recordArraySize = 0;
+    node_rec_first_ix = 0;
+  } else {
+    node_rec_data.num_recs = cpi->node_rec_data.num_recs;
+    recordArraySize = node_rec_data.num_recs * sizeof(RecRecord);
+    node_rec_data.recs = new RecRecord[recordArraySize];
+    memcpy(node_rec_data.recs, cpi->node_rec_data.recs, recordArraySize);
+
+    // Recaculate the old relative index
+    RecGetRecordOrderAndId(node_rec_data.recs[0].name, &node_rec_first_ix, NULL);
+  }
+
+
+  // Query for the name of the node.  If it is not there, some
+  //   their cluster ip address
+  name_l = this->readString("proxy.node.hostname_FQ", &name_found);
+  if (name_found == false || name_l == NULL) {
+    nameFailed.s_addr = inetAddr;
+    mgmt_log("[overviewRecord::overviewRecord] Unable to find hostname for %s\n", inet_ntoa(nameFailed));
+    ats_free(name_l);              // about to overwrite name_l, so we need to free it first
+    name_l = ats_strdup(inet_ntoa(nameFailed));
+  }
+
+  const size_t hostNameLen = strlen(name_l) + 1;
+  this->hostname = new char[hostNameLen];
+  ink_strlcpy(this->hostname, name_l, hostNameLen);
+  ats_free(name_l);
+}
+
+overviewRecord::~overviewRecord()
+{
+
+  delete[]hostname;
+
+  if (localNode == false) {
+    delete[]node_rec_data.recs;
+  }
+}
+
+// void overviewRecord::updateStatus(time_t, ClusterPeerInfo*)
+// updates up/down status based on the cluster peer info record
+//
+//   currentTime is the value of localtime(time()) - sent in as
+//     a parameter so we do not have to make repetitive system calls.
+//     overviewPage::checkForUpdates can just make one call
+//
+//   cpi - is a pointer to a structure we got from ClusterCom that represnets
+//         information about this node
+//
+//   a machine is up if we have heard from it in the last 15 seconds
+//
+void
+overviewRecord::updateStatus(time_t currentTime, ClusterPeerInfo * cpi)
+{
+
+  // Update if the node is up or down
+  if (currentTime - cpi->idle_ticks > 15) {
+    up = false;
+  } else {
+    up = true;
+  }
+
+  // Update the node records by copying them from cpi
+  //  (remote nodes only)
+  if (localNode == false) {
+    memcpy(node_rec_data.recs, cpi->node_rec_data.recs, recordArraySize);
+    RecGetRecordOrderAndId(node_rec_data.recs[0].name, &node_rec_first_ix, NULL);
+  }
+}
+
+// bool overviewRecord::ipMatch(char* ipStr)
+//
+//   Returns true if the passed in string matches
+//     the ip address for this node
+bool
+overviewRecord::ipMatch(char *ipStr)
+{
+  if (inet_addr(ipStr) == inetAddr) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+//  overview::readCounter, overview::readInteger
+//
+//  Accessor functions for node records.  For remote node,
+//    we get the value in the node_data array we maintain
+//    in this object.  For the node, we do not maintain any data
+//    and rely on lmgmt->record_data for both the retrieval
+//    code and the records array
+//
+//  Locking should be done by overviewPage::accessLock.
+//  CALLEE is responsible for obtaining and releasing the lock
+//
+RecCounter
+overviewRecord::readCounter(const char *name, bool * found)
+{
+  RecCounter rec = 0;
+  int rec_status = REC_ERR_OKAY;
+  int order = -1;
+  if (localNode == false) {
+    rec_status = RecGetRecordOrderAndId(name, &order, NULL);
+    if (rec_status == REC_ERR_OKAY) {
+      order -= node_rec_first_ix; // Offset
+      ink_release_assert(order < node_rec_data.num_recs);
+      ink_assert(order < node_rec_data.num_recs);
+      rec = node_rec_data.recs[order].data.rec_counter;
+    } else {
+      mgmt_log(stderr, "node variables '%s' not found!\n");
+    }
+  }
+
+  if (found) {
+    *found = (rec_status == REC_ERR_OKAY);
+  } else {
+    mgmt_log(stderr, "node variables '%s' not found!\n");
+  }
+  return rec;
+}
+
+RecInt
+overviewRecord::readInteger(const char *name, bool * found)
+{
+  RecInt rec = 0;
+  int rec_status = REC_ERR_OKAY;
+  int order = -1;
+  if (localNode == false) {
+    rec_status = RecGetRecordOrderAndId(name, &order, NULL);
+    if (rec_status == REC_ERR_OKAY) {
+      order -= node_rec_first_ix; // Offset
+      ink_release_assert(order < node_rec_data.num_recs);
+      ink_assert(order < node_rec_data.num_recs);
+      rec = node_rec_data.recs[order].data.rec_int;
+    }
+  } else {
+    rec_status = RecGetRecordInt(name, &rec);
+  }
+
+  if (found) {
+    *found = (rec_status == REC_ERR_OKAY);
+  } else {
+    mgmt_log(stderr, "node variables '%s' not found!\n");
+  }
+  return rec;
+}
+
+RecFloat
+overviewRecord::readFloat(const char *name, bool * found)
+{
+  RecFloat rec = 0.0;
+  int rec_status = REC_ERR_OKAY;
+  int order = -1;
+  if (localNode == false) {
+    rec_status = RecGetRecordOrderAndId(name, &order, NULL);
+    if (rec_status == REC_ERR_OKAY) {
+      order -= node_rec_first_ix; // Offset
+      ink_release_assert(order < node_rec_data.num_recs);
+      ink_assert(order < node_rec_data.num_recs);
+      rec = node_rec_data.recs[order].data.rec_float;
+    }
+  } else {
+    rec_status = RecGetRecordFloat(name, &rec);
+  }
+
+  if (found) {
+    *found = (rec_status == REC_ERR_OKAY);
+  } else {
+    mgmt_log(stderr, "node variables '%s' not found!\n");
+  }
+  return rec;
+}
+
+RecString
+overviewRecord::readString(const char *name, bool * found)
+{
+  RecString rec = NULL;
+  int rec_status = REC_ERR_OKAY;
+  int order = -1;
+  if (localNode == false) {
+    rec_status = RecGetRecordOrderAndId(name, &order, NULL);
+    if (rec_status == REC_ERR_OKAY) {
+      order -= node_rec_first_ix; // Offset
+      ink_release_assert(order < node_rec_data.num_recs);
+      ink_assert(order < node_rec_data.num_recs);
+      rec = ats_strdup(node_rec_data.recs[order].data.rec_string);
+    }
+  } else {
+    rec_status = RecGetRecordString_Xmalloc(name, &rec);
+  }
+
+  if (found) {
+    *found = (rec_status == REC_ERR_OKAY);
+  } else {
+    mgmt_log(stderr, "node variables '%s' not found!\n");
+  }
+  return rec;
+}
+
+//  overview::readData, read RecData according varType
+//
+//  Accessor functions for node records.  For remote node,
+//    we get the value in the node_data array we maintain
+//    in this object.  For the node, we do not maintain any data
+//    and rely on lmgmt->record_data for both the retrieval
+//    code and the records array
+//
+//  Locking should be done by overviewPage::accessLock.
+//  CALLEE is responsible for obtaining and releasing the lock
+//
+RecData
+overviewRecord::readData(RecDataT varType, const char *name, bool * found)
+{
+  int rec_status = REC_ERR_OKAY;
+  int order = -1;
+  RecData rec;
+  RecDataClear(RECD_NULL, &rec);
+
+  if (localNode == false) {
+    rec_status = RecGetRecordOrderAndId(name, &order, NULL);
+    if (rec_status == REC_ERR_OKAY) {
+      order -= node_rec_first_ix; // Offset
+      ink_release_assert(order < node_rec_data.num_recs);
+      ink_assert(order < node_rec_data.num_recs);
+      RecDataSet(varType, &rec, &node_rec_data.recs[order].data);
+    } else {
+      Fatal("node variables '%s' not found!\n", name);
+    }
+  } else
+    rec_status = RecGetRecord_Xmalloc(name, varType, &rec, true);
+
+  if (found) {
+    *found = (rec_status == REC_ERR_OKAY);
+  } else {
+    mgmt_log(stderr, "node variables '%s' not found!\n");
+  }
+  return rec;
+}
+
+// bool overviewRecord::varStrFromName (char*, char*bufVal, char*, int)
+//
+//  Accessor function for node records.  Looks up varName for
+//    this node and if found, turns it value into a string
+//    and places it in bufVal
+//
+//  return true if bufVal was succefully set
+//    and false otherwise
+//
+//  EVIL ALERT: varStrFromName in WebMgmtUtils.cc is extremely
+//    similar to this function except in how it gets it's
+//    data.  Changes to this fuction must be propogated
+//    to its twin.  Cut and Paste sucks but there is not
+//    an easy way to merge the functions
+//
+bool
+overviewRecord::varStrFromName(const char *varNameConst, char *bufVal, int bufLen)
+{
+  char *varName;
+  RecDataT varDataType;
+  bool found = true;
+  int varNameLen;
+  char formatOption = '\0';
+
+  union
+  {
+    MgmtIntCounter counter_data;        /* Data */
+    MgmtInt int_data;
+    MgmtFloat float_data;
+    MgmtString string_data;
+  } data;
+
+  // Check to see if there is a \ option on the end of variable
+  //   \ options indicate that we need special formatting
+  //   of the results.  Supported \ options are
+  //
+  ///  b - bytes.  Ints and Counts only.  Amounts are
+  //       transformed into one of GB, MB, KB, or B
+  //
+  varName = ats_strdup(varNameConst);
+  varNameLen = strlen(varName);
+  if (varNameLen > 3 && varName[varNameLen - 2] == '\\') {
+    formatOption = varName[varNameLen - 1];
+
+    // Now that we know the format option, terminate the string
+    //   to make the option disappear
+    varName[varNameLen - 2] = '\0';
+
+    // Return not found for unknown format options
+    if (formatOption != 'b' && formatOption != 'm' && formatOption != 'c' && formatOption != 'p') {
+      ats_free(varName);
+      return false;
+    }
+  }
+  if (RecGetRecordDataType(varName, &varDataType) == REC_ERR_FAIL) {
+    ats_free(varName);
+    return false;
+  }
+
+  switch (varDataType) {
+  case RECD_INT:
+    data.int_data = this->readInteger(varName, &found);
+    if (formatOption == 'b') {
+      bytesFromInt(data.int_data, bufVal);
+    } else if (formatOption == 'm') {
+      MbytesFromInt(data.int_data, bufVal);
+    } else if (formatOption == 'c') {
+      commaStrFromInt(data.int_data, bufVal);
+    } else {
+      snprintf(bufVal, bufLen, "%" PRId64 "", data.int_data);
+    }
+    break;
+  case RECD_COUNTER:
+    data.counter_data = this->readCounter(varName, &found);
+    if (formatOption == 'b') {
+      bytesFromInt((MgmtInt) data.counter_data, bufVal);
+    } else if (formatOption == 'm') {
+      MbytesFromInt((MgmtInt) data.counter_data, bufVal);
+    } else if (formatOption == 'c') {
+      commaStrFromInt(data.counter_data, bufVal);
+    } else {
+      snprintf(bufVal, bufLen, "%" PRId64 "", data.counter_data);
+    }
+    break;
+  case RECD_FLOAT:
+    data.float_data = this->readFloat(varName, &found);
+    if (formatOption == 'p') {
+      percentStrFromFloat(data.float_data, bufVal);
+    } else {
+      snprintf(bufVal, bufLen, "%.2f", data.float_data);
+    }
+    break;
+  case RECD_STRING:
+    data.string_data = this->readString(varName, &found);
+    if (data.string_data == NULL) {
+      bufVal[0] = '\0';
+    } else {
+      ink_strlcpy(bufVal, data.string_data, bufLen);
+    }
+    ats_free(data.string_data);
+    break;
+  case RECD_NULL:
+  default:
+    found = false;
+    break;
+  }
+
+  ats_free(varName);
+  return found;
+}
+
+bool
+overviewRecord::varCounterFromName(const char *name, MgmtIntCounter * value)
+{
+  bool found = false;
+
+  if (value)
+    *value = readCounter((char *) name, &found);
+  return found;
+}
+
+bool
+overviewRecord::varIntFromName(const char *name, MgmtInt * value)
+{
+  bool found = false;
+
+  if (value)
+    *value = readInteger((char *) name, &found);
+  return found;
+}
+
+bool
+overviewRecord::varFloatFromName(const char *name, MgmtFloat * value)
+{
+  bool found = false;
+
+  if (value)
+    *value = readFloat((char *) name, &found);
+
+  return found;
+}
+
+overviewPage::overviewPage():sortRecords(10, false)
+{
+
+  ink_mutex_init(&accessLock, "overviewRecord");
+  nodeRecords = ink_hash_table_create(InkHashTableKeyType_Word);
+  numHosts = 0;
+  ourAddr = 0;                  // We will update this when we add the record for
+  //  this machine
+}
+
+overviewPage::~overviewPage()
+{
+
+  // Since we only have one global object and we never destruct it
+  //  do not actually free memeory since it causes problems the
+  //  process is vforked, and the child execs something
+  // The below code is DELIBERTLY commented out
+  //
+  // ink_mutex_destroy(&accessLock);
+  // ink_hash_table_destroy(nodeRecords);
+}
+
+// overviewPage::checkForUpdates - updates node records as to whether peers
+//    are up or down
+void
+overviewPage::checkForUpdates()
+{
+
+  ClusterPeerInfo *tmp;
+  InkHashTableEntry *entry;
+  InkHashTableIteratorState iterator_state;
+  overviewRecord *current;
+  time_t currentTime;
+  bool newHostAdded = false;
+
+  // grok through the cluster communication stuff and update information
+  //  about hosts in the cluster
+  //
+  ink_mutex_acquire(&accessLock);
+  ink_mutex_acquire(&(lmgmt->ccom->mutex));
+  currentTime = time(NULL);
+  for (entry = ink_hash_table_iterator_first(lmgmt->ccom->peers, &iterator_state);
+       entry != NULL; entry = ink_hash_table_iterator_next(lmgmt->ccom->peers, &iterator_state)) {
+
+    tmp = (ClusterPeerInfo *) ink_hash_table_entry_value(lmgmt->ccom->peers, entry);
+
+    if (ink_hash_table_lookup(nodeRecords, (InkHashTableKey) tmp->inet_address, (InkHashTableValue *) & current) == 0) {
+      this->addRecord(tmp);
+      newHostAdded = true;
+    } else {
+      current->updateStatus(currentTime, tmp);
+    }
+  }
+  ink_mutex_release(&lmgmt->ccom->mutex);
+
+  // If we added a new host we must resort sortRecords
+  if (newHostAdded) {
+    this->sortHosts();
+  }
+
+  ink_mutex_release(&accessLock);
+}
+
+
+// overrviewPage::sortHosts()
+//
+// resorts sortRecords, but always leaves the local node
+//   as the first record
+//
+// accessLock must be held by callee
+void
+overviewPage::sortHosts()
+{
+  void **array = sortRecords.getArray();
+
+  qsort(array + 1, numHosts - 1, sizeof(void *), hostSortFunc);
+}
+
+// overviewPage::addRecord(ClusterPerrInfo* cpi)
+//   Adds a new node record
+//   Assuems that this->accessLock is already held
+//
+void
+overviewPage::addRecord(ClusterPeerInfo * cpi)
+{
+
+  overviewRecord *newRec;
+
+  ink_assert(cpi != NULL);
+
+  newRec = new overviewRecord(cpi->inet_address, false, cpi);
+  newRec->updateStatus(time(NULL), cpi);
+
+  ink_hash_table_insert(nodeRecords, (InkHashTableKey) cpi->inet_address, (InkHashTableEntry *) newRec);
+
+  sortRecords.addEntry(newRec);
+  numHosts++;
+}
+
+// adds a record to nodeRecords for the local machine.
+//   gets IP addr from lmgmt->ccom so cluster communtication
+//   must be intialized before calling this function
+//
+//
+void
+overviewPage::addSelfRecord()
+{
+
+  overviewRecord *newRec;
+
+  ink_mutex_acquire(&accessLock);
+
+  // We should not have been called before
+  ink_assert(ourAddr == 0);
+
+  // Find out what our cluster addr is from
+  //   from cluster com
+  this->ourAddr = lmgmt->ccom->getIP();
+
+  newRec = new overviewRecord(ourAddr, true);
+  newRec->up = true;
+
+  ink_hash_table_insert(nodeRecords, (InkHashTableKey) this->ourAddr, (InkHashTableEntry *) newRec);
+
+  sortRecords.addEntry(newRec);
+  numHosts++;
+  ink_mutex_release(&accessLock);
+}
+
+// int overviewPage::getClusterHosts(Expanding Array* hosts)
+//
+//   The names of all the cluster members are inserted
+//     into parameter hosts.  The callee is responsible
+//     for freeing the strings
+//
+int
+overviewPage::getClusterHosts(ExpandingArray * hosts)
+{
+  int number = 0;
+
+  overviewRecord *current;
+
+  ink_mutex_acquire(&accessLock);
+  number = sortRecords.getNumEntries();
+
+  for (int i = 0; i < number; i++) {
+    current = (overviewRecord *) sortRecords[i];
+    hosts->addEntry(ats_strdup(current->hostname));
+  }
+
+  ink_mutex_release(&accessLock);
+  return number;
+}
+
+// overviewRecord* overviewPage::findNodeByName(const char* nodeName)
+//
+//   Returns a pointer to node name nodeName
+//     If node name is not found, returns NULL
+//
+//   CALLEE MUST BE HOLDING this->accessLock
+//
+overviewRecord *
+overviewPage::findNodeByName(const char *nodeName)
+{
+  overviewRecord *current = NULL;
+  bool nodeFound = false;
+
+  // Do a linear search of the nodes for this nodeName.
+  //   Yes, I know this is slow but the current word is ten
+  //   nodes would be a huge cluster so this should not
+  //   be a problem
+  //
+  for (int i = 0; i < numHosts; i++) {
+    current = (overviewRecord *) sortRecords[i];
+    if (strcmp(nodeName, current->hostname) == 0) {
+      nodeFound = true;
+      break;
+    }
+  }
+
+  if (nodeFound == true) {
+    return current;
+  } else {
+    return NULL;
+  }
+}
+
+// MgmtString overviewPage::readString(const char* nodeName, char* *name, bool *found = NULL)
+//
+//   Looks up a node record for a specific by nodeName
+//    CALLEE deallocates the string with free()
+//
+MgmtString
+overviewPage::readString(const char *nodeName, const char *name, bool * found)
+{
+  MgmtString r = NULL;
+  //  bool nodeFound = false;
+  bool valueFound = false;
+  overviewRecord *node;
+
+  ink_mutex_acquire(&accessLock);
+
+  node = this->findNodeByName(nodeName);
+
+  if (node != NULL) {
+    r = node->readString(name, &valueFound);
+  }
+  ink_mutex_release(&accessLock);
+
+  if (found != NULL) {
+    *found = valueFound;
+  }
+
+  return r;
+}
+
+// MgmtInt overviewPage::readInteger(const char* nodeName, char* *name, bool *found = NULL)
+//
+//   Looks up a node record for a specific by nodeName
+//
+MgmtInt
+overviewPage::readInteger(const char *nodeName, const char *name, bool * found)
+{
+  MgmtInt r = -1;
+  //  bool nodeFound = false;
+  bool valueFound = false;
+  overviewRecord *node;
+
+  ink_mutex_acquire(&accessLock);
+
+  node = this->findNodeByName(nodeName);
+
+  if (node != NULL) {
+    r = node->readInteger(name, &valueFound);
+  }
+  ink_mutex_release(&accessLock);
+
+  if (found != NULL) {
+    *found = valueFound;
+  }
+
+  return r;
+}
+
+// MgmtFloat overviewPage::readFloat(const char* nodeName, char* *name, bool *found = NULL)
+//
+//   Looks up a node record for a specific by nodeName
+//
+RecFloat
+overviewPage::readFloat(const char *nodeName, const char *name, bool * found)
+{
+  RecFloat r = -1.0;
+  //  bool nodeFound = false;
+  bool valueFound = false;
+  overviewRecord *node;
+
+  ink_mutex_acquire(&accessLock);
+
+  node = this->findNodeByName(nodeName);
+
+  if (node != NULL) {
+    r = node->readFloat(name, &valueFound);
+  }
+  ink_mutex_release(&accessLock);
+
+  if (found != NULL) {
+    *found = valueFound;
+  }
+
+  return r;
+}
+
+// int overviewPage::clusterSumData(RecDataT varType, const char* nodeVar,
+//                                  RecData* sum)
+//
+//   Sums nodeVar for every up node in the cluster and stores the
+//     sum in *sum.  Returns the number of nodes summed over
+//
+//   CALLEE MUST HOLD this->accessLock
+//
+int
+overviewPage::clusterSumData(RecDataT varType, const char *nodeVar,
+                             RecData *sum)
+{
+  int numUsed = 0;
+  int numHosts_local = sortRecords.getNumEntries();
+  overviewRecord *current;
+  bool found;
+  RecData recTmp;
+
+  ink_assert(sum != NULL);
+  RecDataClear(varType, sum);
+
+  for (int i = 0; i < numHosts_local; i++) {
+    current = (overviewRecord *) sortRecords[i];
+    if (current->up == true) {
+      numUsed++;
+      recTmp = current->readData(varType, nodeVar, &found);
+      *sum = RecDataAdd(varType, *sum, recTmp);
+      if (found == false) {
+      }
+    }
+  }
+  return numUsed;
+}
+
+int
+overviewPage::varClusterDataFromName(RecDataT varType, char *nodeVar,
+                                     RecData *sum)
+{
+  int status = 0;
+
+  ink_mutex_acquire(&accessLock);
+
+  status = clusterSumData(varType, nodeVar, sum);
+
+  ink_mutex_release(&accessLock);
+
+  return (status);
+}
+
+// Moved from the now removed StatAggregation.cc
+void
+AgFloat_generic_scale_to_int(const char *processVar, const char *nodeVar, double factor)
+{
+  MgmtFloat tmp;
+
+  if (varFloatFromName(processVar, &tmp)) {
+    tmp = tmp * factor;
+    tmp = tmp + 0.5;            // round up.
+    varSetInt(nodeVar, (int) tmp);
+  } else {
+    varSetInt(nodeVar, -20);
+  }
+}
+
+// char* overviewPage::resolvePeerHostname(char* peerIP)
+//
+//   A locking interface to overviewPage::resolvePeerHostname_ml
+//
+char *
+overviewPage::resolvePeerHostname(const char *peerIP)
+{
+  char *r;
+
+  ink_mutex_acquire(&accessLock);
+  r = this->resolvePeerHostname_ml(peerIP);
+  ink_mutex_release(&accessLock);
+
+  return r;
+}
+
+// char* overviewPage::resolvePeerHostname_ml(char* peerIP)
+//
+// Resolves the peer the hostname from its IP address
+//   The hostname is resolved by finding the overviewRecord
+//   Associated with the IP address and copying its hostname
+//
+// CALLEE frees storage
+// CALLEE is responsible for locking
+//
+char *
+overviewPage::resolvePeerHostname_ml(const char *peerIP)
+{
+  unsigned long int ipAddr;
+  InkHashTableValue lookup;
+  overviewRecord *peerRecord;
+  char *returnName = NULL;
+
+  ipAddr = inet_addr(peerIP);
+
+  // Check to see if our address is malformed
+  if ((long int) ipAddr == -1) {
+    return NULL;
+  }
+
+  if (ink_hash_table_lookup(nodeRecords, (InkHashTableKey) ipAddr, &lookup)) {
+    peerRecord = (overviewRecord *) lookup;
+    returnName = ats_strdup(peerRecord->hostname);
+  }
+
+  return returnName;
+}
+
+// int hostSortFunc(const void* arg1, const void* arg2)
+//
+//   A compare function that we can to qsort that sorts
+//    overviewRecord*
+//
+int
+hostSortFunc(const void *arg1, const void *arg2)
+{
+  overviewRecord *rec1 = (overviewRecord *) * (void **) arg1;
+  overviewRecord *rec2 = (overviewRecord *) * (void **) arg2;
+
+  return strcmp(rec1->hostname, rec2->hostname);
+}
diff --git a/mgmt/web2/WebOverview.h b/mgmt/web2/WebOverview.h
new file mode 100644
index 00000000..59927559
--- /dev/null
+++ b/mgmt/web2/WebOverview.h
@@ -0,0 +1,151 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _WEB_OVERVIEW_H_
+#define _WEB_OVERVIEW_H_
+
+#include "ink_hash_table.h"
+#include "ink_mutex.h"
+#include "WebGlobals.h"
+#include "TextBuffer.h"
+#include "List.h"
+
+#include "WebHttpContext.h"
+#include "WebHttpMessage.h"
+#include "ExpandingArray.h"
+#include "ClusterCom.h"
+
+#include "P_RecCore.h"
+
+/****************************************************************************
+ *
+ *  WebOverview.h - code to overview page
+ *
+ *
+ ****************************************************************************/
+
+//
+//  There is one instance of the class overviewPage in the LocalManger
+//    process.  The overviewPage instance stores a record of type
+//    overviewRecord for each node that has been seen in the cluster.
+//    The node records contain a list of active alarms on that node.
+//
+//  overviewPage is responsible for the synchronization issues for both
+//    it self and all of its overviewRecords.  Whenever updates are made
+//    to instances of either class, overviewPage's accessLock must be held.
+//
+//  Pointers to overviewRecords are stored in overviewPage::nodeRecords
+//    hash table which is indexed on the nodes ip address (as an
+//    unsigned long).  A second mapping is also maintained in sortRecords.
+//
+//
+//  Additional Notes
+//
+//  These classes have expanded over time.  overviewPage and
+//    overviewRecord are now clearing houses of cluster information
+//    for the UI.
+//  To simplify the locking issues, pointer to overviewRecords should
+//    NOT be returned by overviewPage.  overviewRecords are internal
+//    to overviewPage and any data needed from an overviewRecord
+//    should be returned as a copy (or a const ptr)
+//    through an accessor function
+
+enum PowerLampState
+{ LAMP_ON, LAMP_OFF, LAMP_WARNING };
+
+// information about a specific node in the cluster
+class overviewRecord
+{
+public:
+  overviewRecord(unsigned long inet_addr, bool local, ClusterPeerInfo * cpi = NULL);
+   ~overviewRecord();
+  void updateStatus(time_t currentTime, ClusterPeerInfo * cpi);
+  void getStatus(char **hotsname, bool * up, bool * alarms, PowerLampState * proxyUp);
+  bool ipMatch(char *ipStr);    // is this the ip address of this node
+  bool up;
+  bool localNode;
+  char *hostname;               // FQ hostname of the node
+  unsigned long inetAddr;       // IP address of the node
+  bool varStrFromName(const char *varName, char *bufVal, int bufLen);
+  RecCounter readCounter(const char *name, bool * found);
+  RecInt readInteger(const char *name, bool * found);
+  RecFloat readFloat(const char *name, bool * found);
+  RecString readString(const char *name, bool * found);
+  RecData readData(RecDataT varType, const char *name, bool * found);
+  bool varIntFromName(const char *varName, RecInt * value);
+  bool varFloatFromName(const char *varName, RecFloat * value);
+  bool varCounterFromName(const char *varName, RecCounter * value);
+
+private:
+  RecRecords node_rec_data;   // a copy from ClusterPeerInfo
+  int recordArraySize;          // the size of node_data.recs
+  int node_rec_first_ix; // Kludge, but store the first order ix for later use
+  overviewRecord(const overviewRecord &);
+};
+
+// information about the entire cluster
+class overviewPage
+{
+public:
+  overviewPage();
+  ~overviewPage();
+
+  void checkForUpdates();
+  char *resolvePeerHostname(const char *peerIP);
+  char *resolvePeerHostname_ml(const char *peerIP);
+  int getClusterHosts(ExpandingArray * hosts);
+  MgmtInt readInteger(const char *nodeName, const char *name, bool * found = NULL);
+  MgmtFloat readFloat(const char *nodeName, const char *name, bool * found = NULL);
+  MgmtString readString(const char *nodeName, const char *name, bool * found = NULL);
+  void addSelfRecord();
+
+  int varClusterDataFromName(RecDataT varType, char *nodeVar, RecData *sum);
+
+private:
+  ink_mutex accessLock;
+
+  // Private fcns
+    overviewPage(const overviewPage &);
+  void addRecord(ClusterPeerInfo * cpi);
+  overviewRecord *findNodeByName(const char *nodeName);
+  void addReading(MgmtInt reading, textBuffer * output, int nDigits, const char **gifs, const char **alts);
+  void addLoadBar(textBuffer * output, MgmtInt load);
+  void sortHosts();
+  bool moreInfoButton(const char *submission, textBuffer * output);
+  void addHostPanel(WebHttpContext * whc, overviewRecord * host);
+
+  // Private variables
+  InkHashTable *nodeRecords;    // container for overviewRecords
+  unsigned long ourAddr;        // the IP address of this node
+  ExpandingArray sortRecords;   // A second, sorted container for nodeRecords
+  int numHosts;                 // number of peers we know about including ourself
+
+  int clusterSumData(RecDataT varType, const char *nodeVar, RecData *sum);
+};
+
+extern overviewPage *overviewGenerator; // global handle to overiewPage?
+                                        // defn found in WebOverview.cc
+
+int hostSortFunc(const void *arg1, const void *arg2);
+
+#endif
diff --git a/mgmt/web2/WebUtils.cc b/mgmt/web2/WebUtils.cc
new file mode 100644
index 00000000..806849c2
--- /dev/null
+++ b/mgmt/web2/WebUtils.cc
@@ -0,0 +1,115 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+
+#include "ink_assert.h"
+#include "ink_sock.h"
+#include "WebUtils.h"
+#include "WebGlobals.h"
+#include "MgmtUtils.h"
+
+/****************************************************************************
+ *
+ *  WebUtils.cc - Misc Utility Functions for the web server internface
+ *
+ *
+ *
+ ****************************************************************************/
+
+#include "openssl/ssl.h"
+
+ssize_t
+socket_write(SocketInfo socketD, const char *buf, size_t nbyte)
+{
+  if (socketD.SSLcon != NULL) {
+    return SSL_write((SSL *) socketD.SSLcon, (char *) buf, nbyte);
+  } else {
+    return write_socket(socketD.fd, buf, nbyte);
+  }
+  return -1;
+}
+
+ssize_t
+socket_read(SocketInfo socketD, char *buf, size_t nbyte)
+{
+  if (socketD.SSLcon != NULL) {
+    return SSL_read((SSL *) socketD.SSLcon, (char *) buf, nbyte);
+  } else {
+    return read_socket(socketD.fd, buf, nbyte);
+  }
+  return -1;
+}
+
+
+// int sigfdreadln(int fd, char *s, int len)
+//
+//  An inefficient way to read a line from a socket
+//     within the constrants of the Web Administration
+//     interface
+//  reads from the passed in file descriptor to a
+//    new line or until all space in the buffer is exhausted
+//  returns the number of characters read
+//
+//  Intentially, stops if the read is interrupted by a signal
+//    The reaper will interupt us with a signal if we
+//     are stuck
+//
+//  Returns -1 if the read fails
+//
+int
+sigfdrdln(SocketInfo socketD, char *s, int len)
+{
+  char c;
+  int result;
+  char *bufStart = s;
+
+  do {
+
+    do {
+      result = socket_read(socketD, &c, 1);
+    } while (result < 0 && errno == EAGAIN);
+
+    // If we are out of bytes or there is an
+    //   error, we are done
+    if (result < 0 || result == 0) {
+      c = '\n';
+    }
+
+    *s++ = c;
+    len--;
+  } while (c != '\n' && len > 1);
+
+  if (c == '\n') {
+    s--;
+    *s = '\0';
+  } else {
+    *s = '\0';
+  }
+
+  if (result < 0) {
+    return -1;
+  } else {
+    return (s - bufStart);
+  }
+}
diff --git a/mgmt/web2/WebUtils.h b/mgmt/web2/WebUtils.h
new file mode 100644
index 00000000..f5df7984
--- /dev/null
+++ b/mgmt/web2/WebUtils.h
@@ -0,0 +1,53 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _WEB_UTILS_H_
+#define _WEB_UTILS_H_
+
+/****************************************************************************
+ *
+ *  WebUtils.h - Misc Utility Functions for the web server internface
+ *
+ ****************************************************************************/
+
+#include "ink_platform.h"
+#include "MgmtDefs.h"
+
+struct WebContext;
+
+/* Ugly Hack - declare
+ *  SSLcon as void* instead of SSL since this prevents  us from
+ *  including ssl.h right here which creates a whole bunch of
+ *  nasty problem to MD5 conflicts with ink_code.h.
+ */
+struct SocketInfo
+{
+  int fd;
+  void *SSLcon; /* Currently unused */
+};
+
+ssize_t socket_write(SocketInfo socketD, const char *buf, size_t nbyte);
+ssize_t socket_read(SocketInfo socketD, char *buf, size_t nbyte);
+int sigfdrdln(SocketInfo socketD, char *s, int len);
+
+#endif
diff --git a/plugins/Makefile.am b/plugins/Makefile.am
new file mode 100644
index 00000000..f2912d03
--- /dev/null
+++ b/plugins/Makefile.am
@@ -0,0 +1,33 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Add new plugins in alphabetic order, but keep experimental always at the bottom.
+
+SUBDIRS = \
+  cacheurl \
+  conf_remap \
+  gzip \
+  header_rewrite \
+  libloader \
+  regex_remap \
+  stats_over_http \
+  tcpinfo
+
+if BUILD_EXPERIMENTAL_PLUGINS
+SUBDIRS += experimental
+endif
+
+DIST_SUBDIRS = $(SUBDIRS)
diff --git a/plugins/Makefile.in b/plugins/Makefile.in
new file mode 100644
index 00000000..5229bffa
--- /dev/null
+++ b/plugins/Makefile.in
@@ -0,0 +1,869 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Add new plugins in alphabetic order, but keep experimental always at the bottom.
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
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+	  include_option=--etags-include; \
+	  empty_fix=.; \
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+	  include_option=--include; \
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+	  if test "$$subdir" = .; then :; else \
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+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
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+	list='$(am__tagged_files)'; \
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
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+distdir: $(DISTFILES)
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+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	  sed -e "s|^$$srcdirstrip/||;t" \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
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+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
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+	    $(am__make_dryrun) \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+mostlyclean-generic:
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+clean-generic:
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
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diff --git a/plugins/cacheurl/Makefile.am b/plugins/cacheurl/Makefile.am
new file mode 100644
index 00000000..f5907fe4
--- /dev/null
+++ b/plugins/cacheurl/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = cacheurl.la
+cacheurl_la_SOURCES = cacheurl.cc
+cacheurl_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/cacheurl/Makefile.in b/plugins/cacheurl/Makefile.in
new file mode 100644
index 00000000..c03e8c49
--- /dev/null
+++ b/plugins/cacheurl/Makefile.in
@@ -0,0 +1,934 @@
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+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
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+am__installdirs = "$(DESTDIR)$(pkglibdir)"
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+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(cacheurl_la_LDFLAGS) $(LDFLAGS) -o $@
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+DIST_SOURCES = $(cacheurl_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
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+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
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+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
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+ETAGS = etags
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+PACKAGE_NAME = @PACKAGE_NAME@
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+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
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+PYTHON_VERSION = @PYTHON_VERSION@
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+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
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+TCL_LIB_SPEC = @TCL_LIB_SPEC@
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+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
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+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
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+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
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+am__quote = @am__quote@
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+arpa_nameser_compath = @arpa_nameser_compath@
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+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
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+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
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+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
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+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
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+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = cacheurl.la
+cacheurl_la_SOURCES = cacheurl.cc
+cacheurl_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/cacheurl/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/cacheurl/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+cacheurl.la: $(cacheurl_la_OBJECTS) $(cacheurl_la_DEPENDENCIES) $(EXTRA_cacheurl_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(cacheurl_la_LINK) -rpath $(pkglibdir) $(cacheurl_la_OBJECTS) $(cacheurl_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cacheurl.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/cacheurl/cacheurl.cc b/plugins/cacheurl/cacheurl.cc
new file mode 100644
index 00000000..c32d52d7
--- /dev/null
+++ b/plugins/cacheurl/cacheurl.cc
@@ -0,0 +1,445 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/* cacheurl.cc - Plugin to modify the URL used as a cache key for certain
+ * requests, without modifying the URL used for actually fetching data from
+ * the origin server.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "ink_config.h"
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+#include "ink_defs.h"
+#include <string>
+#include <vector>
+
+#define TOKENCOUNT 10
+#define OVECOUNT 30
+#define PLUGIN_NAME "cacheurl"
+
+struct regex_info
+{
+  pcre *re;                     /* Compiled regular expression */
+  int tokcount;                 /* Token count */
+  char *pattern;                /* Pattern string */
+  char *replacement;            /* Replacement string */
+  int *tokens;                  /* Array of $x token values */
+  int *tokenoffset;             /* Array of $x token offsets */
+};
+
+struct pr_list
+{
+  std::vector<regex_info*>pr;
+
+  pr_list()
+  {
+  }
+
+  ~pr_list()
+  {
+    for (std::vector < regex_info * >::iterator info = this->pr.begin(); info != this->pr.end(); ++info) {
+      TSfree((*info)->tokens);
+      TSfree((*info)->tokenoffset);
+      pcre_free((*info)->re);
+      TSfree(*info);
+    }
+  }
+};
+
+static int
+regex_substitute(char **buf, char *str, regex_info * info)
+{
+  int matchcount;
+  int ovector[OVECOUNT];        /* Locations of matches in regex */
+
+  int replacelen;               /* length of replacement string */
+  int i;
+  int offset;
+  int prev;
+
+  /* Perform the regex matching */
+  matchcount = pcre_exec(info->re, NULL, str, strlen(str), 0, 0, ovector, OVECOUNT);
+  if (matchcount < 0) {
+    switch (matchcount) {
+    case PCRE_ERROR_NOMATCH:
+      break;
+    default:
+      TSError("[%s] Matching error: %d\n", PLUGIN_NAME, matchcount);
+      break;
+    }
+    return 0;
+  }
+
+  /* Verify the replacement has the right number of matching groups */
+  for (i = 0; i < info->tokcount; i++) {
+    if (info->tokens[i] >= matchcount) {
+      TSError("[%s] Invalid reference int replacement: $%d\n", PLUGIN_NAME, info->tokens[i]);
+      return 0;
+    }
+  }
+
+  /* malloc the replacement string */
+  replacelen = strlen(info->replacement);
+  replacelen -= info->tokcount * 2;     /* Subtract $1, $2 etc... */
+  for (i = 0; i < info->tokcount; i++) {
+    replacelen += (ovector[info->tokens[i] * 2 + 1] - ovector[info->tokens[i] * 2]);
+  }
+  replacelen++;                 /* Null terminator */
+  *buf = (char *) TSmalloc(replacelen);
+
+  /* perform string replacement */
+  offset = 0;                   /* Where we are adding new data in the string */
+  prev = 0;
+  for (i = 0; i < info->tokcount; i++) {
+    memcpy(*buf + offset, info->replacement + prev, info->tokenoffset[i] - prev);
+    offset += (info->tokenoffset[i] - prev);
+    prev = info->tokenoffset[i] + 2;
+
+    memcpy(*buf + offset, str + ovector[info->tokens[i] * 2],
+           ovector[info->tokens[i] * 2 + 1] - ovector[info->tokens[i] * 2]);
+    offset += (ovector[info->tokens[i] * 2 + 1] - ovector[info->tokens[i] * 2]);
+  }
+  memcpy(*buf + offset, info->replacement + prev, strlen(info->replacement) - prev);
+  offset += strlen(info->replacement) - prev;
+  (*buf)[offset] = 0;           /* Null termination */
+  return 1;
+}
+
+static int
+regex_compile(regex_info ** buf, char *pattern, char *replacement)
+{
+  const char *reerror;          /* Error string from pcre */
+  int reerroffset;              /* Offset where any pcre error occured */
+
+  int tokcount;
+  int *tokens;
+  int *tokenoffset;
+
+  int status = 1;               /* Status (return value) of the function */
+  regex_info *info = (regex_info *) TSmalloc(sizeof(regex_info));
+
+  /* Precompile the regular expression */
+  info->re = pcre_compile(pattern, 0, &reerror, &reerroffset, NULL);
+  if (!info->re) {
+    TSError("[%s] Compilation of regex '%s' failed at char %d: %s\n", PLUGIN_NAME, pattern, reerroffset, reerror);
+    status = 0;
+  }
+
+  /* Precalculate the location of $X tokens in the replacement */
+  tokcount = 0;
+  if (status) {
+    tokens = (int *) TSmalloc(sizeof(int) * TOKENCOUNT);
+    tokenoffset = (int *) TSmalloc(sizeof(int) * TOKENCOUNT);
+    for (unsigned i = 0; i < strlen(replacement); i++) {
+      if (replacement[i] == '$') {
+        if (tokcount >= TOKENCOUNT) {
+          TSError("[%s] Error: too many tokens in replacement " "string: %s\n", PLUGIN_NAME, replacement);
+          status = 0;
+          break;
+        } else if (replacement[i + 1] < '0' || replacement[i + 1] > '9') {
+          TSError("[%s] Error: Invalid replacement token $%c in %s: should be $0 - $9\n",
+                  PLUGIN_NAME, replacement[i + 1], replacement);
+          status = 0;
+          break;
+        } else {
+          /* Store the location of the replacement */
+          /* Convert '0' to 0 */
+          tokens[tokcount] = replacement[i + 1] - '0';
+          tokenoffset[tokcount] = i;
+          tokcount++;
+          /* Skip the next char */
+          i++;
+        }
+      }
+    }
+  }
+
+  if (status) {
+    /* Everything went OK */
+    info->tokcount = tokcount;
+    info->tokens = tokens;
+    info->tokenoffset = tokenoffset;
+
+    info->pattern = TSstrdup(pattern);
+    info->replacement = TSstrdup(replacement);
+
+    *buf = info;
+  } else {
+    /* Something went wrong, clean up */
+    if (info->tokens)
+      TSfree(info->tokens);
+    if (info->tokenoffset)
+      TSfree(info->tokenoffset);
+    if (info->re)
+      pcre_free(info->re);
+    if (info)
+      TSfree(info);
+  }
+  return status;
+}
+
+static pr_list *
+load_config_file(const char *config_file)
+{
+  char buffer[1024];
+  std::string path;
+  TSFile fh;
+  pr_list *prl = new pr_list();
+
+  /* locations in a config file line, end of line, split start, split end */
+  char *eol, *spstart, *spend;
+  int lineno = 0;
+  int retval;
+  regex_info *info = 0;
+
+  if (config_file == NULL) {
+    /* Default config file of plugins/cacheurl.config */
+    path = TSPluginDirGet();
+    path += "/cacheurl.config";
+  } else if (*config_file != '/') {
+    // Relative paths are relative to the config directory
+    path = TSConfigDirGet();
+    path += "/";
+    path += config_file;
+  } else {
+    // Absolute path ...
+    path = config_file;
+  }
+
+  TSDebug(PLUGIN_NAME, "Opening config file: %s", path.c_str());
+  fh = TSfopen(path.c_str(), "r");
+
+  if (!fh) {
+    TSError("[%s] Unable to open %s. No patterns will be loaded\n", PLUGIN_NAME, path.c_str());
+    return prl;
+  }
+
+  while (TSfgets(fh, buffer, sizeof(buffer) - 1)) {
+    lineno++;
+    if (*buffer == '#') {
+      /* # Comments, only at line beginning */
+      continue;
+    }
+    eol = strstr(buffer, "\n");
+    if (eol) {
+      *eol = 0;                 /* Terminate string at newline */
+    } else {
+      /* Malformed line - skip */
+      continue;
+    }
+    /* Split line into two parts based on whitespace */
+    /* Find first whitespace */
+    spstart = strstr(buffer, " ");
+    if (!spstart) {
+      spstart = strstr(buffer, "\t");
+    }
+    if (!spstart) {
+      TSError("[%s] ERROR: Invalid format on line %d. Skipping\n", PLUGIN_NAME, lineno);
+      continue;
+    }
+    /* Find part of the line after any whitespace */
+    spend = spstart + 1;
+    while (*spend == ' ' || *spend == '\t') {
+      spend++;
+    }
+    if (*spend == 0) {
+      /* We reached the end of the string without any non-whitepace */
+      TSError("[%s] ERROR: Invalid format on line %d. Skipping\n", PLUGIN_NAME, lineno);
+      continue;
+    }
+
+    *spstart = 0;
+    /* We have the pattern/replacement, now do precompilation.
+     * buffer is the first part of the line. spend is the second part just
+     * after the whitespace */
+    TSDebug(PLUGIN_NAME, "Adding pattern/replacement pair: '%s' -> '%s'", buffer, spend);
+    retval = regex_compile(&info, buffer, spend);
+    if (!retval) {
+      TSError("[%s] Error precompiling regex/replacement. Skipping.\n", PLUGIN_NAME);
+    }
+
+    prl->pr.push_back(info);
+  }
+  TSfclose(fh);
+
+  TSDebug(PLUGIN_NAME, "loaded %u regexes", (unsigned) prl->pr.size());
+  return prl;
+}
+
+static int
+rewrite_cacheurl(pr_list * prl, TSHttpTxn txnp)
+{
+  int ok = 1;
+  char *newurl = 0;
+  int retval;
+  char *url;
+  int url_length;
+
+  url = TSHttpTxnEffectiveUrlStringGet(txnp, &url_length);
+  if (!url) {
+    TSError("[%s] couldn't retrieve request url\n", PLUGIN_NAME);
+    ok = 0;
+  }
+
+  if (ok) {
+    for (std::vector<regex_info*>::iterator info = prl->pr.begin(); info != prl->pr.end(); ++info) {
+      retval = regex_substitute(&newurl, url, *info);
+      if (retval) {
+        /* Successful match/substitution */
+        break;
+      }
+    }
+    if (newurl) {
+      TSDebug(PLUGIN_NAME, "Rewriting cache URL for %s to %s", url, newurl);
+      if (TSCacheUrlSet(txnp, newurl, strlen(newurl))
+          != TS_SUCCESS) {
+        TSError("[%s] Unable to modify cache url from " "%s to %s\n", PLUGIN_NAME, url, newurl);
+        ok = 0;
+      }
+    }
+  }
+
+  /* Clean up */
+  if (url)
+    TSfree(url);
+  if (newurl)
+    TSfree(newurl);
+
+  return ok;
+}
+
+static int
+handle_hook(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  pr_list *prl;
+  int ok = 1;
+
+  prl = (pr_list *) TSContDataGet(contp);
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    ok = rewrite_cacheurl(prl, txnp);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+  default:
+    TSAssert(!"Unexpected event");
+    ok = 0;
+    break;
+  }
+
+  return ok;
+}
+
+/* Generic error message function for errors in plugin initialization */
+static void
+initialization_error(const char *msg)
+{
+  TSError("[%s] %s\n", PLUGIN_NAME, msg);
+  TSError("[%s] Unable to initialize plugin (disabled).\n", PLUGIN_NAME);
+}
+
+TSReturnCode
+TSRemapInit(TSRemapInterface * api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[tsremap_init] Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    strncpy(errbuf, "[tsremap_init] Incorrect size of TSRemapInterface structure", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[tsremap_init] Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  TSDebug(PLUGIN_NAME, "remap plugin is successfully initialized");
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void **ih, char *errbuf ATS_UNUSED, int errbuf_size ATS_UNUSED)
+{
+  *ih = load_config_file(argc > 2 ? argv[2] : NULL);
+  return TS_SUCCESS;
+}
+
+
+void
+TSRemapDeleteInstance(void *ih)
+{
+  pr_list *prl = (pr_list *) ih;
+
+  TSDebug(PLUGIN_NAME, "Deleting remap instance");
+
+  TSfree(prl);
+  delete prl;
+}
+
+TSRemapStatus
+TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo * rri ATS_UNUSED)
+{
+  int ok;
+
+  ok = rewrite_cacheurl((pr_list *) ih, rh);
+  if (ok) {
+    return TSREMAP_NO_REMAP;
+  } else {
+    return TSREMAP_ERROR;
+  }
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+  TSCont contp;
+  pr_list *prl;
+
+  info.plugin_name = (char *) PLUGIN_NAME;
+  info.vendor_name = (char *) "Apache Software Foundation";
+  info.support_email = (char *) "dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    initialization_error("Plugin registration failed.");
+    return;
+  }
+
+  prl = load_config_file(argc > 1 ? argv[1] : NULL);
+
+  contp = TSContCreate((TSEventFunc) handle_hook, NULL);
+  /* Store the pattern replacement list in the continuation */
+  TSContDataSet(contp, prl);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, contp);
+}
diff --git a/plugins/cacheurl/cacheurl.config.example b/plugins/cacheurl/cacheurl.config.example
new file mode 100644
index 00000000..67a91a76
--- /dev/null
+++ b/plugins/cacheurl/cacheurl.config.example
@@ -0,0 +1,39 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Configuration file format:
+#
+# url_pattern   cache_key_replacement
+#
+# The url_pattern is a regular expression (pcre). The replacement can contain
+# $1, $2 and so on, which will be replaced with the appropriate matching group
+# from the pattern.
+
+# Make files from s1.example.com, s2.example.com and s3.example.com all
+# be cached with the same key.
+# Adding a unique suffix (TSINTERNAL in this example) to the cache key
+# guarantees that it won't clash with a real URL should s.example.com exist.
+http://s[123].example.com/(.*)  http://s.example.com.TSINTERNAL/$1
+
+# Cache based on only some parts of a query string (e.g. ignore session
+# information). This plucks out the id and format query string variables and
+# only considers those when making the cache key.
+http://www.example.com/video\?.*?\&?(id=[0-9a-f]*).*?\&(format=[a-z]*) http://video-srv.example.com.ATSINTERNAL/$1&$2
+
+# Completely ignore a query string for a specific page
+http://www.example.com/some/page.html(?:\?|$) http://www.example.com/some/page.html
diff --git a/plugins/conf_remap/Makefile.am b/plugins/conf_remap/Makefile.am
new file mode 100644
index 00000000..48843d3f
--- /dev/null
+++ b/plugins/conf_remap/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = conf_remap.la
+conf_remap_la_SOURCES = conf_remap.cc
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diff --git a/plugins/conf_remap/Makefile.in b/plugins/conf_remap/Makefile.in
new file mode 100644
index 00000000..5adcfa8d
--- /dev/null
+++ b/plugins/conf_remap/Makefile.in
@@ -0,0 +1,935 @@
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+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = conf_remap.la
+conf_remap_la_SOURCES = conf_remap.cc
+conf_remap_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/conf_remap/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/conf_remap/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+conf_remap.la: $(conf_remap_la_OBJECTS) $(conf_remap_la_DEPENDENCIES) $(EXTRA_conf_remap_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(conf_remap_la_LINK) -rpath $(pkglibdir) $(conf_remap_la_OBJECTS) $(conf_remap_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conf_remap.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
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+install-data-am:
+
+install-dvi: install-dvi-am
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+install-dvi-am:
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+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
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+install-info: install-info-am
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+install-pdf: install-pdf-am
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+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+mostlyclean: mostlyclean-am
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+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
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+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/conf_remap/conf_remap.cc b/plugins/conf_remap/conf_remap.cc
new file mode 100644
index 00000000..ecdbe359
--- /dev/null
+++ b/plugins/conf_remap/conf_remap.cc
@@ -0,0 +1,349 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+#include "ink_defs.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string>
+
+static const char PLUGIN_NAME[] = "conf_remap";
+
+// This makes the plugin depend on the version of traffic server installed, but that's
+// OK, since this plugin is distributed only with the "core" (it's a core piece).
+#define MAX_OVERRIDABLE_CONFIGS TS_CONFIG_LAST_ENTRY
+
+
+// Class to hold a set of configurations (one for each remap rule instance)
+struct RemapConfigs
+{
+  struct Item {
+    TSOverridableConfigKey _name;
+    TSRecordDataType _type;
+    TSRecordData _data;
+    int _data_len; // Used when data is a string
+  };
+
+  RemapConfigs()
+    : _current(0)
+  {
+    memset(_items, 0, sizeof(_items));
+  };
+
+  bool parse_file(const char *filename);
+  bool parse_inline(const char *arg);
+
+  Item _items[MAX_OVERRIDABLE_CONFIGS];
+  int _current;
+};
+
+// Helper functionfor the parser
+inline TSRecordDataType
+str_to_datatype(const char* str)
+{
+  TSRecordDataType type = TS_RECORDDATATYPE_NULL;
+
+  if (!str || !*str)
+    return TS_RECORDDATATYPE_NULL;
+
+  if (!strcmp(str, "INT")) {
+    type = TS_RECORDDATATYPE_INT;
+  } else if (!strcmp(str, "STRING")) {
+    type = TS_RECORDDATATYPE_STRING;
+  }
+
+  return type;
+}
+
+// Parse an inline key=value config pair.
+bool
+RemapConfigs::parse_inline(const char *arg)
+{
+  const char * sep;
+  std::string key;
+  std::string value;
+
+  TSOverridableConfigKey name;
+  TSRecordDataType type;
+
+  // Each token should be a status code then a URL, separated by '='.
+  sep = strchr(arg, '=');
+  if (sep == NULL) {
+    return false;
+  }
+
+  key = std::string(arg, std::distance(arg, sep));
+  value = std::string(sep + 1, std::distance(sep + 1, arg + strlen(arg)));
+
+  if (TSHttpTxnConfigFind(key.c_str(), -1 /* len */, &name, &type) != TS_SUCCESS) {
+    TSError("%s: invalid configuration variable '%s'", PLUGIN_NAME, key.c_str());
+    return false;
+  }
+
+  switch (type) {
+    case TS_RECORDDATATYPE_INT:
+      _items[_current]._data.rec_int = strtoll(value.c_str(), NULL, 10);
+      break;
+    case TS_RECORDDATATYPE_STRING:
+      _items[_current]._data.rec_string = TSstrdup(value.c_str());
+      _items[_current]._data_len = value.size();
+      break;
+    default:
+      TSError("%s: configuration variable '%s' is of an unsupported type", PLUGIN_NAME, key.c_str());
+      return false;
+  }
+
+  _items[_current]._name = name;
+  _items[_current]._type = type;
+  ++_current;
+  return true;
+}
+
+// Config file parser, somewhat borrowed from P_RecCore.i
+bool
+RemapConfigs::parse_file(const char* filename)
+{
+  int line_num = 0;
+  TSFile file;
+  char buf[8192];
+  TSOverridableConfigKey name;
+  TSRecordDataType type, expected_type;
+
+  std::string path;
+
+  if (!filename || ('\0' == *filename))
+    return false;
+
+  if (*filename == '/') {
+    // Absolute path, just use it.
+    path = filename;
+  } else {
+    // Relative path. Make it relative to the configuration directory.
+    path = TSConfigDirGet();
+    path += "/";
+    path += filename;
+  }
+
+  if (NULL == (file = TSfopen(path.c_str(), "r"))) {
+    TSError("%s: could not open config file %s", PLUGIN_NAME, path.c_str());
+    return false;
+  }
+
+  TSDebug(PLUGIN_NAME, "loading configuration file %s", path.c_str());
+
+  while (NULL != TSfgets(file, buf, sizeof(buf))) {
+    char *ln, *tok;
+    char *s = buf;
+
+    ++line_num; // First line is #1 ...
+    while (isspace(*s))
+      ++s;
+    tok = strtok_r(s, " \t", &ln);
+
+    // check for blank lines and comments
+    if ((!tok) || (tok && ('#' == *tok)))
+      continue;
+
+    if (strncmp(tok, "CONFIG", 6)) {
+      TSError("%s: file %s, line %d: non-CONFIG line encountered", PLUGIN_NAME, path.c_str(), line_num);
+      continue;
+    }
+
+    // Find the configuration name
+    tok = strtok_r(NULL, " \t", &ln);
+    if (TSHttpTxnConfigFind(tok, -1, &name, &expected_type) != TS_SUCCESS) {
+      TSError("%s: file %s, line %d: no records.config name given", PLUGIN_NAME, path.c_str(), line_num);
+      continue;
+    }
+    
+    // Find the type (INT or STRING only)
+    tok = strtok_r(NULL, " \t", &ln);
+    if (TS_RECORDDATATYPE_NULL == (type = str_to_datatype(tok))) {
+      TSError("%s: file %s, line %d: only INT and STRING types supported", PLUGIN_NAME, path.c_str(), line_num);
+      continue;
+    }
+
+    if (type != expected_type) {
+      TSError("%s: file %s, line %d: mismatch between provide data type, and expected type", PLUGIN_NAME, path.c_str(), line_num);
+      continue;
+    }
+
+    // Find the value (which depends on the type above)
+    if (ln) {
+      while (isspace(*ln))
+        ++ln;
+      if ('\0' == *ln) {
+        tok = NULL;
+      } else {
+        tok = ln;
+        while (*ln != '\0')
+          ++ln;
+        --ln;
+        while (isspace(*ln) && (ln > tok))
+          --ln;
+        ++ln;
+        *ln = '\0';
+      }
+    } else {
+      tok = NULL;
+    }
+    if (!tok) {
+      TSError("%s: file %s, line %d: the configuration must provide a value", PLUGIN_NAME, path.c_str(), line_num);
+      continue;
+    }
+
+    // Now store the new config
+    switch (type) {
+    case TS_RECORDDATATYPE_INT:
+      _items[_current]._data.rec_int = strtoll(tok, NULL, 10);
+      break;
+    case TS_RECORDDATATYPE_STRING:
+      _items[_current]._data.rec_string = TSstrdup(tok);
+      _items[_current]._data_len = strlen(tok);
+      break;
+    default:
+      TSError("%s: file %s, line %d: type not support (unheard of)", PLUGIN_NAME, path.c_str(), line_num);
+      continue;
+      break;
+    }
+    _items[_current]._name = name;
+    _items[_current]._type = type;
+    ++_current;
+  }
+
+  TSfclose(file);
+  return (_current > 0);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin as a remap plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    TSstrlcpy(errbuf, "[TSRemapInit] - Invalid TSRemapInterface argument", errbuf_size);
+    return TS_ERROR;
+  }
+
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    TSstrlcpy(errbuf, "[TSRemapInit] - Incorrect size of TSRemapInterface structure", errbuf_size);
+    return TS_ERROR;
+  }
+
+  TSDebug(PLUGIN_NAME, "remap plugin is successfully initialized");
+  return TS_SUCCESS;                     /* success */
+}
+
+
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** ih, char* /* errbuf ATS_UNUSED */, int /* errbuf_size ATS_UNUSED */)
+{
+  RemapConfigs* conf = new(RemapConfigs);
+
+  if (argc < 3) {
+    TSError("Unable to create remap instance, need configuration file");
+    return TS_ERROR;
+  }
+
+  for (int i = 2; i < argc; ++i) {
+    if (strchr(argv[i], '=') != NULL) {
+      // Parse as an inline key=value pair ...
+      if (!conf->parse_inline(argv[i])) {
+        goto fail;
+      }
+    } else {
+      // Parse as a config file ...
+      if (!conf->parse_file(argv[i])) {
+        goto fail;
+      }
+    }
+  }
+
+  *ih = static_cast<void*>(conf);
+  return TS_SUCCESS;
+
+fail:
+  delete conf;
+  return TS_ERROR;
+}
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  RemapConfigs* conf = static_cast<RemapConfigs*>(ih);
+
+  for (int ix=0; ix < conf->_current; ++ix) {
+    if (TS_RECORDDATATYPE_STRING == conf->_items[ix]._type)
+      TSfree(conf->_items[ix]._data.rec_string);
+  }
+
+  delete conf;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Main entry point when used as a remap plugin.
+//
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo * /* rri ATS_UNUSED */)
+{
+  if (NULL != ih) {
+    RemapConfigs* conf = static_cast<RemapConfigs*>(ih);
+    TSHttpTxn txnp = static_cast<TSHttpTxn>(rh);
+
+    for (int ix=0; ix < conf->_current; ++ix) {
+      switch (conf->_items[ix]._type) {
+      case TS_RECORDDATATYPE_INT:
+        TSHttpTxnConfigIntSet(txnp, conf->_items[ix]._name, conf->_items[ix]._data.rec_int);
+        TSDebug(PLUGIN_NAME, "Setting config id %d to %" PRId64"", conf->_items[ix]._name, conf->_items[ix]._data.rec_int);
+        break;
+      case TS_RECORDDATATYPE_STRING:
+        TSHttpTxnConfigStringSet(txnp, conf->_items[ix]._name, conf->_items[ix]._data.rec_string, conf->_items[ix]._data_len);
+        TSDebug(PLUGIN_NAME, "Setting config id %d to %s", conf->_items[ix]._name, conf->_items[ix]._data.rec_string);
+        break;
+      default:
+        break; // Error ?
+      }
+    }
+  }
+
+  return TSREMAP_NO_REMAP; // This plugin never rewrites anything.
+}
+
+
+
+/*
+  local variables:
+  mode: C++
+  indent-tabs-mode: nil
+  c-basic-offset: 2
+  c-comment-only-line-offset: 0
+  c-file-offsets: ((statement-block-intro . +)
+  (label . 0)
+  (statement-cont . +)
+  (innamespace . 0))
+  end:
+
+  Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
+*/
diff --git a/plugins/experimental/Makefile.am b/plugins/experimental/Makefile.am
new file mode 100644
index 00000000..225feea9
--- /dev/null
+++ b/plugins/experimental/Makefile.am
@@ -0,0 +1,40 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = \
+ authproxy \
+ background_fetch \
+ balancer \
+ buffer_upload \
+ channel_stats \
+ collapsed_connection \
+ custom_redirect \
+ escalate \
+ esi \
+ geoip_acl \
+ healthchecks \
+ hipes \
+ metalink \
+ regex_revalidate \
+ remap_stats \
+ s3_auth \
+ stale_while_revalidate \
+ url_sig \
+ xdebug
+
+if BUILD_LUAJIT
+  SUBDIRS += ts_lua
+endif
diff --git a/plugins/experimental/Makefile.in b/plugins/experimental/Makefile.in
new file mode 100644
index 00000000..571b1404
--- /dev/null
+++ b/plugins/experimental/Makefile.in
@@ -0,0 +1,874 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
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diff --git a/plugins/experimental/authproxy/Makefile.am b/plugins/experimental/authproxy/Makefile.am
new file mode 100644
index 00000000..844511a5
--- /dev/null
+++ b/plugins/experimental/authproxy/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = authproxy.la
+authproxy_la_SOURCES = authproxy.cc utils.cc utils.h
+authproxy_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
diff --git a/plugins/experimental/authproxy/Makefile.in b/plugins/experimental/authproxy/Makefile.in
new file mode 100644
index 00000000..eb2ed279
--- /dev/null
+++ b/plugins/experimental/authproxy/Makefile.in
@@ -0,0 +1,953 @@
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+
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+
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+@SET_MAKE@
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+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
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+#
+#      http://www.apache.org/licenses/LICENSE-2.0
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+#  Unless required by applicable law or agreed to in writing, software
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+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
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+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+
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+ink_with_modules_process = @ink_with_modules_process@
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+sys_eventh = @sys_eventh@
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+sys_sysinfoh = @sys_sysinfoh@
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+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = authproxy.la
+authproxy_la_SOURCES = authproxy.cc utils.cc utils.h
+authproxy_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/authproxy/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/authproxy/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+authproxy.la: $(authproxy_la_OBJECTS) $(authproxy_la_DEPENDENCIES) $(EXTRA_authproxy_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(authproxy_la_LINK) -rpath $(pkglibdir) $(authproxy_la_OBJECTS) $(authproxy_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/authproxy.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
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+info: info-am
+
+info-am:
+
+install-data-am:
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+install-dvi: install-dvi-am
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+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
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+install-html-am:
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+install-man:
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+install-pdf: install-pdf-am
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+install-pdf-am:
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+install-ps: install-ps-am
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+install-ps-am:
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+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
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+pdf-am:
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+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/authproxy/authproxy.cc b/plugins/experimental/authproxy/authproxy.cc
new file mode 100644
index 00000000..a27614d7
--- /dev/null
+++ b/plugins/experimental/authproxy/authproxy.cc
@@ -0,0 +1,887 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// AuthProxy - An authorization plugin for Apache Traffic Server that delegates
+// the authorization decision to a separate web service. The web service
+// (which we refer to here as the Authorization Proxy) is expected to authorize
+// the request (or not) by consulting some authoritative source.
+//
+// This plugin follows the pattern of the basic-auth sample code. We use the
+// TS_HTTP_OS_DNS_HOOK to perform the initial authorization, and the
+// TS_HTTP_SEND_RESPONSE_HDR_HOOK to send an error response if necessary.
+
+#include "utils.h"
+#include <string>
+#include <memory> // placement new
+#include <limits>
+#include <cstring>
+#include <cstdlib>
+#include <cstdio>
+
+#include <getopt.h>
+#include <arpa/inet.h>
+#include <sys/param.h>
+#include <ts/remap.h>
+#include <ink_config.h>
+
+using std::strlen;
+
+struct AuthRequestContext;
+
+typedef bool (*AuthRequestTransform)(AuthRequestContext * auth, const sockaddr * saddr);
+
+// We can operate in global plugin mode or remap plugin mode. If we are in
+// global mode, then we will authorize every request. In remap mode, we will
+// only authorize tagged requests.
+static bool         AuthTaggedRequestOnly = false;
+static int          AuthTaggedRequestArg = -1;
+
+static TSCont       AuthOsDnsContinuation;
+
+struct AuthOptions
+{
+    char *  hostname;
+    int     hostport;
+    bool    force;
+    AuthRequestTransform transform;
+
+    AuthOptions() : hostname(NULL), hostport(8080), force(false), transform(NULL) {
+    }
+
+    ~AuthOptions() {
+        TSfree(hostname);
+    }
+};
+
+// Global options; used when we are in global authorization mode.
+static AuthOptions * AuthGlobalOptions;
+
+// Generic state handler callback. This should handle the event, and return a
+// new event. The return value controls the subsequent state transition:
+//      TS_EVENT_CONTINUE   Continue the state machine, returning to the ATS event loop
+//      TS_EVENT_NONE       Stop processing (because a nested dispatch occurred)
+//      Anything else       Continue the state machine with this event
+typedef TSEvent (*StateHandler)(struct AuthRequestContext *, void * edata);
+
+struct StateTransition {
+    TSEvent                 event;
+    StateHandler            handler;
+    const StateTransition * next;
+};
+
+static TSEvent StateAuthProxyConnect(AuthRequestContext *, void *);
+static TSEvent StateAuthProxyResolve(AuthRequestContext *, void *);
+static TSEvent StateAuthProxyWriteComplete(AuthRequestContext *, void *);
+static TSEvent StateUnauthorized(AuthRequestContext *, void *);
+static TSEvent StateAuthorized(AuthRequestContext *, void *);
+
+static TSEvent StateAuthProxyReadHeaders(AuthRequestContext *, void *);
+static TSEvent StateAuthProxyCompleteHeaders(AuthRequestContext *, void *);
+static TSEvent StateAuthProxyReadContent(AuthRequestContext *, void *);
+static TSEvent StateAuthProxyCompleteContent(AuthRequestContext *, void *);
+
+static TSEvent StateAuthProxySendResponse(AuthRequestContext *, void *);
+
+// Trampoline state that just returns TS_EVENT_CONTINUE. We need this to be
+// able to transition between state tables when we are in a loop.
+static TSEvent StateContinue(AuthRequestContext *, void *)
+{
+    return TS_EVENT_CONTINUE;
+}
+
+// State table for sending the auth proxy response to the client.
+static const StateTransition StateTableSendResponse[] =
+{
+    { TS_EVENT_HTTP_SEND_RESPONSE_HDR, StateAuthProxySendResponse, NULL },
+    { TS_EVENT_NONE, NULL, NULL }
+};
+
+// State table for reading the proxy response body content.
+static const StateTransition StateTableProxyReadContent[] =
+{
+    { TS_EVENT_VCONN_READ_READY, StateAuthProxyReadContent, StateTableProxyReadContent },
+    { TS_EVENT_VCONN_READ_COMPLETE, StateAuthProxyReadContent, StateTableProxyReadContent },
+    { TS_EVENT_VCONN_EOS, StateAuthProxyCompleteContent, StateTableProxyReadContent  },
+    { TS_EVENT_HTTP_SEND_RESPONSE_HDR, StateContinue, StateTableSendResponse },
+    { TS_EVENT_ERROR, StateUnauthorized, NULL },
+    { TS_EVENT_IMMEDIATE, StateAuthorized, NULL },
+    { TS_EVENT_NONE, NULL, NULL }
+};
+
+// State table for reading the auth proxy response header.
+static const StateTransition StateTableProxyReadHeader[] =
+{
+    { TS_EVENT_VCONN_READ_READY, StateAuthProxyReadHeaders, StateTableProxyReadHeader },
+    { TS_EVENT_VCONN_READ_COMPLETE, StateAuthProxyReadHeaders, StateTableProxyReadHeader },
+    { TS_EVENT_HTTP_READ_REQUEST_HDR, StateAuthProxyCompleteHeaders, StateTableProxyReadHeader },
+    { TS_EVENT_HTTP_SEND_RESPONSE_HDR, StateContinue, StateTableSendResponse },
+    { TS_EVENT_HTTP_CONTINUE, StateAuthProxyReadContent, StateTableProxyReadContent },
+    { TS_EVENT_VCONN_EOS, StateUnauthorized, NULL }, // XXX Should we check headers on EOS?
+    { TS_EVENT_ERROR, StateUnauthorized, NULL },
+    { TS_EVENT_IMMEDIATE, StateAuthorized, NULL },
+    { TS_EVENT_NONE, NULL, NULL }
+};
+
+// State table for sending the request to the auth proxy.
+static const StateTransition StateTableProxyRequest[] =
+{
+    { TS_EVENT_HOST_LOOKUP, StateAuthProxyConnect, StateTableProxyRequest },
+    { TS_EVENT_VCONN_WRITE_COMPLETE, StateAuthProxyWriteComplete, StateTableProxyReadHeader },
+    { TS_EVENT_ERROR, StateUnauthorized, NULL },
+    { TS_EVENT_NONE, NULL, NULL }
+};
+
+// Initial state table.
+static const StateTransition StateTableInit[] =
+{
+    { TS_EVENT_HTTP_OS_DNS, StateAuthProxyResolve, StateTableProxyRequest },
+    { TS_EVENT_ERROR, StateUnauthorized, NULL },
+    { TS_EVENT_NONE, NULL, NULL }
+};
+
+struct AuthRequestContext
+{
+    TSHttpTxn       txn;    // Original client transaction we are authorizing.
+    TSCont          cont;   // Continuation for this state machine.
+    TSVConn         vconn;  // Virtual connection to the auth proxy.
+    TSHttpParser    hparser;// HTTP response header parser.
+    HttpHeader      rheader;// HTTP response header.
+    HttpIoBuffer    iobuf;
+    bool            is_head;// This is a HEAD request
+    bool            read_body;
+
+    const StateTransition * state;
+
+    AuthRequestContext()
+            : txn(NULL), cont(NULL), vconn(NULL), hparser(TSHttpParserCreate()),
+                rheader(), iobuf(TS_IOBUFFER_SIZE_INDEX_4K), is_head(false), read_body(true), state(NULL) {
+        this->cont = TSContCreate(dispatch, TSMutexCreate());
+        TSContDataSet(this->cont, this);
+    }
+
+    ~AuthRequestContext() {
+        TSContDataSet(this->cont, NULL);
+        TSContDestroy(this->cont);
+        TSHttpParserDestroy(this->hparser);
+        if (this->vconn) {
+            TSVConnClose(this->vconn);
+        }
+    }
+
+    const AuthOptions * options() const {
+        AuthOptions * opt;
+
+        opt = (AuthOptions *)TSHttpTxnArgGet(this->txn, AuthTaggedRequestArg);
+        return opt ? opt : AuthGlobalOptions;
+    }
+
+    static AuthRequestContext * allocate();
+    static void destroy(AuthRequestContext *);
+    static int dispatch(TSCont, TSEvent, void *);
+};
+
+AuthRequestContext *
+AuthRequestContext::allocate()
+{
+    void * ptr = TSmalloc(sizeof(AuthRequestContext));
+    return new(ptr) AuthRequestContext();
+}
+
+void
+AuthRequestContext::destroy(AuthRequestContext * auth)
+{
+    if (auth) {
+        auth->~AuthRequestContext();
+        TSfree(auth);
+    }
+}
+
+int
+AuthRequestContext::dispatch(TSCont cont, TSEvent event, void * edata)
+{
+    AuthRequestContext * auth = (AuthRequestContext *)TSContDataGet(cont);
+    const StateTransition * s;
+
+pump:
+    for (s = auth->state; s && s->event; ++s) {
+        if (s->event == event) {
+            break;
+        }
+    }
+
+    // If we don't have a handler, the state machine is borked.
+    TSReleaseAssert(s->handler != NULL);
+
+    // Move to the next state. We have to set this *before* invoking the
+    // handler because the handler itself can invoke the next handler.
+    auth->state = s->next;
+    event = s->handler(auth, edata);
+
+    // If the handler returns TS_EVENT_NONE, it means that a re-entrant event
+    // was dispatched. In this case, the state machine continues from the
+    // nested call to dispatch.
+    if (event == TS_EVENT_NONE) {
+        return TS_EVENT_NONE;
+    }
+
+    // If there are no more states, the state machine has terminated.
+    if (auth->state == NULL) {
+        AuthRequestContext::destroy(auth);
+    }
+
+    // If the handler gave us an event, pump the it back into the current state
+    // table, otherwise we will return back to the ATS event loop.
+    if (event != TS_EVENT_CONTINUE) {
+        goto pump;
+    }
+
+    return TS_EVENT_NONE;
+}
+
+// Return whether the client request was a HEAD request.
+static bool
+AuthRequestIsHead(TSHttpTxn txn)
+{
+    TSMBuffer   mbuf;
+    TSMLoc      mhdr;
+    int         len;
+    bool        is_head;
+
+    TSReleaseAssert(
+        TSHttpTxnClientReqGet(txn, &mbuf, &mhdr) == TS_SUCCESS
+    );
+
+    is_head = (TSHttpHdrMethodGet(mbuf, mhdr, &len) == TS_HTTP_METHOD_HEAD);
+
+    TSHandleMLocRelease(mbuf, TS_NULL_MLOC, mhdr);
+    return is_head;
+}
+
+// Chain the response header hook to send the proxy's authorization response.
+static void
+AuthChainAuthorizationResponse(AuthRequestContext * auth)
+{
+    if (auth->vconn) {
+        TSVConnClose(auth->vconn);
+        auth->vconn = NULL;
+    }
+
+    TSHttpTxnHookAdd(auth->txn, TS_HTTP_SEND_RESPONSE_HDR_HOOK, auth->cont);
+    TSHttpTxnReenable(auth->txn, TS_EVENT_HTTP_ERROR);
+}
+
+// Transform the client request into a HEAD request and write it out.
+static bool
+AuthWriteHeadRequest(AuthRequestContext * auth, const sockaddr * /* saddr ATS_UNUSED */)
+{
+    HttpHeader  rq;
+    TSMBuffer   mbuf;
+    TSMLoc      mhdr;
+
+    TSReleaseAssert(
+        TSHttpTxnClientReqGet(auth->txn, &mbuf, &mhdr) == TS_SUCCESS
+    );
+
+    // First, copy the whole client request to our new auth proxy request.
+    TSReleaseAssert(
+        TSHttpHdrCopy(rq.buffer, rq.header, mbuf, mhdr) == TS_SUCCESS
+    );
+
+    // Next, we need to rewrite the client request URL to be a HEAD request.
+    TSReleaseAssert(
+        TSHttpHdrMethodSet(rq.buffer, rq.header, TS_HTTP_METHOD_HEAD, -1) == TS_SUCCESS
+    );
+
+    HttpSetMimeHeader(rq.buffer, rq.header, TS_MIME_FIELD_CONTENT_LENGTH, 0u);
+    HttpSetMimeHeader(rq.buffer, rq.header, TS_MIME_FIELD_CACHE_CONTROL, "no-cache");
+
+    HttpDebugHeader(rq.buffer, rq.header);
+
+    // Serialize the HTTP request to the write IO buffer.
+    TSHttpHdrPrint(rq.buffer, rq.header, auth->iobuf.buffer);
+
+    // We have to tell the auth context not to try to ready the response
+    // body (since HEAD can have a content-length but must not have any
+    // content).
+    auth->read_body = false;
+
+    TSHandleMLocRelease(mbuf, TS_NULL_MLOC, mhdr);
+    return true;
+}
+
+// Transform the client request into a form that the auth proxy can consume and
+// write it out.
+static bool
+AuthWriteRedirectedRequest(AuthRequestContext * auth, const sockaddr * saddr)
+{
+    HttpHeader  rq;
+    TSMBuffer   mbuf;
+    TSMLoc      mhdr;
+    TSMLoc      murl;
+
+    char addrbuf[INET6_ADDRSTRLEN];
+    char hostbuf[INET6_ADDRSTRLEN + sizeof("[]") + sizeof(":65536")];
+    uint16_t hostport;
+
+    TSReleaseAssert(
+        TSHttpTxnClientReqGet(auth->txn, &mbuf, &mhdr) == TS_SUCCESS
+    );
+
+    // First, copy the whole client request to our new auth proxy request.
+    TSReleaseAssert(
+        TSHttpHdrCopy(rq.buffer, rq.header, mbuf, mhdr) == TS_SUCCESS
+    );
+
+    hostport = SockaddrGetPort(saddr);
+    inet_ntop(saddr->sa_family, SockaddrGetAddress(saddr), addrbuf, sizeof(addrbuf));
+    if (saddr->sa_family == PF_INET6) {
+        snprintf(hostbuf, sizeof(hostbuf), "[%s]:%d", addrbuf, hostport);
+    } else {
+        snprintf(hostbuf, sizeof(hostbuf), "%s:%d", addrbuf, hostport);
+    }
+
+    // Next, we need to rewrite the client request URL so that the request goes to
+    // the auth proxy instead of the original request.
+    TSReleaseAssert(
+        TSHttpHdrUrlGet(rq.buffer, rq.header, &murl) == TS_SUCCESS
+    );
+
+    // XXX Possibly we should rewrite the URL to remove the host, port and
+    // scheme, forcing ATS to go to the Host header. I wonder how HTTPS would
+    // work in that case. At any rate, we should add a new header containing
+    // the original host so that the auth proxy can examine it.
+    TSUrlHostSet(rq.buffer, murl, addrbuf, -1);
+    TSUrlPortSet(rq.buffer, murl, hostport);
+    TSHandleMLocRelease(rq.buffer,rq.header, murl);
+
+    HttpSetMimeHeader(rq.buffer, rq.header, TS_MIME_FIELD_HOST, hostbuf);
+    HttpSetMimeHeader(rq.buffer, rq.header, TS_MIME_FIELD_CONTENT_LENGTH, 0u);
+    HttpSetMimeHeader(rq.buffer, rq.header, TS_MIME_FIELD_CACHE_CONTROL, "no-cache");
+
+    HttpDebugHeader(rq.buffer, rq.header);
+
+    // Serialize the HTTP request to the write IO buffer.
+    TSHttpHdrPrint(rq.buffer, rq.header, auth->iobuf.buffer);
+
+    TSHandleMLocRelease(mbuf, TS_NULL_MLOC, mhdr);
+    TSHandleMLocRelease(rq.buffer, rq.header, murl);
+    return true;
+}
+
+static TSEvent
+StateAuthProxyResolve(AuthRequestContext * auth, void *)
+{
+    TSAction            lookup;
+    const AuthOptions * options = auth->options();
+
+    // If we are authorizing with a HEAD request we want to send that to the
+    // origin; other requests we want to send to the authorization proxy.
+    if (options->transform == AuthWriteHeadRequest) {
+        char        hostname[TS_MAX_HOST_NAME_LEN * 2];
+        TSMBuffer   mbuf;
+        TSMLoc      mhdr;
+
+        TSReleaseAssert(
+            TSHttpTxnClientReqGet(auth->txn, &mbuf, &mhdr) == TS_SUCCESS
+        );
+
+        if (HttpGetOriginHost(mbuf, mhdr, hostname, sizeof(hostname))) {
+            AuthLogDebug("resolving authorization host %s", hostname);
+            lookup = TSHostLookup(auth->cont, hostname, strlen(hostname));
+            TSHandleMLocRelease(mbuf, TS_NULL_MLOC, mhdr);
+        } else {
+            AuthLogError("failed to extract origin host name from client request");
+            TSHandleMLocRelease(mbuf, TS_NULL_MLOC, mhdr);
+            return TS_EVENT_ERROR;
+        }
+
+    } else {
+        AuthLogDebug("resolving authorization proxy host %s", options->hostname);
+        lookup = TSHostLookup(auth->cont, options->hostname, strlen(options->hostname));
+    }
+
+    if (TSActionDone(lookup)) {
+        AuthLogDebug("host lookup was executed in line");
+        return TS_EVENT_NONE;
+    }
+
+    return TS_EVENT_CONTINUE;
+}
+
+static TSEvent
+StateAuthProxyConnect(AuthRequestContext * auth, void * edata)
+{
+    const AuthOptions * options = auth->options();
+    TSHostLookupResult  dns;
+    const sockaddr *    saddr;
+
+    union {
+        sockaddr            sa;
+        sockaddr_in         sin;
+        sockaddr_in6        sin6;
+        sockaddr_storage    storage;
+    } addr;
+
+    dns = (TSHostLookupResult)edata;
+    if (dns == NULL) {
+        AuthLogError("failed to resolve authorization proxy at %s", options->hostname);
+        return TS_EVENT_ERROR;
+    }
+
+    // Copy the resolved address and add the port.
+    saddr = TSHostLookupResultAddrGet(dns);
+    switch (saddr->sa_family) {
+    case PF_INET:
+        memcpy(&addr.sin, saddr, sizeof(sockaddr_in));
+        addr.sin.sin_port = options->hostport;
+        break;
+    case PF_INET6:
+        memcpy(&addr.sin6, saddr, sizeof(sockaddr_in6));
+        addr.sin6.sin6_port = options->hostport;
+        break;
+    }
+
+    auth->is_head = AuthRequestIsHead(auth->txn);
+    AuthLogDebug("client request %s a HEAD request", auth->is_head ? "is" : "is not");
+
+    auth->vconn = TSHttpConnect(&addr.sa);
+    if (auth->vconn == NULL) {
+        return TS_EVENT_ERROR;
+    }
+
+    // Transform the client request into an auth proxy request and write it
+    // out to the auth proxy vconn.
+    if (!options->transform(auth, &addr.sa)) {
+        return TS_EVENT_ERROR;
+    }
+
+    // Start a write and transition to WriteAuthProxyState.
+    TSVConnWrite(auth->vconn, auth->cont, auth->iobuf.reader, TSIOBufferReaderAvail(auth->iobuf.reader));
+    return TS_EVENT_CONTINUE;
+}
+
+static TSEvent
+StateAuthProxyCompleteHeaders(AuthRequestContext * auth, void * /* edata ATS_UNUSED */)
+{
+    TSHttpStatus status;
+    unsigned nbytes;
+
+    HttpDebugHeader(auth->rheader.buffer, auth->rheader.header);
+
+    status = TSHttpHdrStatusGet(auth->rheader.buffer, auth->rheader.header);
+    AuthLogDebug("authorization proxy returned status %d", (int)status);
+
+    // Authorize the original request on a 2xx response.
+    if (status >= 200 && status < 300) {
+        return TS_EVENT_IMMEDIATE;
+    }
+
+    if (auth->read_body) {
+        // We can't support sending the auth proxy response back to the client
+        // without writing a transform. Since that's more trouble than I want to
+        // deal with right now, let's just fail fast ...
+        if (HttpIsChunkedEncoding(auth->rheader.buffer, auth->rheader.header)) {
+            AuthLogDebug("ignoring chunked authorization proxy response");
+        } else {
+            // OK, we have a non-chunked response. If there's any content, let's go and
+            // buffer it so that we can send it on to the client.
+            nbytes = HttpGetContentLength(auth->rheader.buffer, auth->rheader.header);
+            if (nbytes > 0) {
+                AuthLogDebug("content length is %u", nbytes);
+                return TS_EVENT_HTTP_CONTINUE;
+            }
+        }
+    }
+
+    // We are going to reply with the auth proxy's response. The response body
+    // is empty in this case.
+    AuthChainAuthorizationResponse(auth);
+    return TS_EVENT_HTTP_SEND_RESPONSE_HDR;
+}
+
+static TSEvent
+StateAuthProxySendResponse(AuthRequestContext * auth, void * /* edata ATS_UNUSED */)
+{
+    TSMBuffer mbuf;
+    TSMLoc mhdr;
+    TSHttpStatus status;
+    char msg[128];
+
+    // The auth proxy denied this request. We need to copy the auth proxy
+    // response header to the client response header, then read any available
+    // body data and copy that as well.
+
+    // There's only a client response if the auth proxy sent one. There
+    TSReleaseAssert(
+        TSHttpTxnClientRespGet(auth->txn, &mbuf, &mhdr) == TS_SUCCESS
+    );
+
+    TSReleaseAssert(
+        TSHttpHdrCopy(mbuf, mhdr, auth->rheader.buffer, auth->rheader.header) == TS_SUCCESS
+    );
+
+    status = TSHttpHdrStatusGet(mbuf, mhdr),
+    snprintf(msg, sizeof(msg), "%d %s\n", status, TSHttpHdrReasonLookup(status));
+
+    TSHttpTxnErrorBodySet(auth->txn, TSstrdup(msg), strlen(msg), TSstrdup("text/plain"));
+
+    // We must not whack the content length for HEAD responses, since the
+    // client already knows that there is no body. Forcing content length to
+    // zero breaks hdiutil(1) on Mac OS X.
+    if (!auth->is_head) {
+        HttpSetMimeHeader(mbuf, mhdr, TS_MIME_FIELD_CONTENT_LENGTH, 0u);
+    }
+
+    AuthLogDebug("sending auth proxy response for status %d", status);
+
+    TSHttpTxnReenable(auth->txn, TS_EVENT_HTTP_CONTINUE);
+    TSHandleMLocRelease(mbuf, TS_NULL_MLOC, mhdr);
+    return TS_EVENT_CONTINUE;
+}
+
+static TSEvent
+StateAuthProxyReadHeaders(AuthRequestContext * auth, void * /* edata ATS_UNUSED */)
+{
+    TSIOBufferBlock blk;
+    ssize_t         consumed = 0;
+    bool            complete = false;
+
+    AuthLogDebug("reading header data, %u bytes available", (unsigned)TSIOBufferReaderAvail(auth->iobuf.reader));
+
+    for (blk = TSIOBufferReaderStart(auth->iobuf.reader); blk; blk = TSIOBufferBlockNext(blk)) {
+        const char *    ptr;
+        const char *    end;
+        int64_t         nbytes;
+        TSParseResult   result;
+
+        ptr = TSIOBufferBlockReadStart(blk, auth->iobuf.reader, &nbytes);
+        if (ptr == NULL || nbytes == 0) {
+            continue;
+        }
+
+        end = ptr + nbytes;
+        result = TSHttpHdrParseResp(auth->hparser, auth->rheader.buffer, auth->rheader.header, &ptr, end);
+        switch (result) {
+        case TS_PARSE_ERROR:
+            return TS_EVENT_ERROR;
+        case TS_PARSE_DONE:
+        case TS_PARSE_OK:
+            // We consumed the buffer we got minus the remainder.
+            consumed += (nbytes - std::distance(ptr, end));
+            complete = true;
+            break;
+        case TS_PARSE_CONT:
+            consumed += (nbytes - std::distance(ptr, end));
+            break;
+        }
+
+        if (complete) {
+            break;
+        }
+    }
+
+    AuthLogDebug("consuming %u bytes, %u remain",
+            (unsigned)consumed, (unsigned)TSIOBufferReaderAvail(auth->iobuf.reader));
+    TSIOBufferReaderConsume(auth->iobuf.reader, consumed);
+
+    // If the headers are complete, send a completion event.
+    return complete ? TS_EVENT_HTTP_READ_REQUEST_HDR : TS_EVENT_CONTINUE;
+}
+
+static TSEvent
+StateAuthProxyWriteComplete(AuthRequestContext * auth, void * /* edata ATS_UNUSED */)
+{
+    // We finished writing the auth proxy request. Kick off a read to get the response.
+    auth->iobuf.reset();
+
+    TSVConnRead(auth->vconn, auth->cont, auth->iobuf.buffer, std::numeric_limits<int64_t>::max());
+
+    // XXX Do we need to keep the read and write VIOs and close them?
+
+    return TS_EVENT_CONTINUE;
+}
+
+static TSEvent
+StateAuthProxyReadContent(AuthRequestContext * auth, void * /* edata ATS_UNUSED */)
+{
+    unsigned        needed;
+    int64_t         avail = 0;
+
+    avail = TSIOBufferReaderAvail(auth->iobuf.reader);
+    needed = HttpGetContentLength(auth->rheader.buffer, auth->rheader.header);
+
+    AuthLogDebug("we have %u of %u needed bytes", (unsigned)avail, needed);
+
+    if (avail >= needed) {
+        // OK, we have what we need. Let's respond to the client request.
+        AuthChainAuthorizationResponse(auth);
+        return TS_EVENT_HTTP_SEND_RESPONSE_HDR;
+    }
+
+    return TS_EVENT_CONTINUE;
+}
+
+static TSEvent
+StateAuthProxyCompleteContent(AuthRequestContext * auth, void * /* edata ATS_UNUSED */)
+{
+    unsigned        needed;
+    int64_t         avail;
+
+    avail = TSIOBufferReaderAvail(auth->iobuf.reader);
+    needed = HttpGetContentLength(auth->rheader.buffer, auth->rheader.header);
+
+    AuthLogDebug("we have %u of %u needed bytes", (unsigned)avail, needed);
+
+    if (avail >= needed) {
+        // OK, we have what we need. Let's respond to the client request.
+        AuthChainAuthorizationResponse(auth);
+        return TS_EVENT_HTTP_SEND_RESPONSE_HDR;
+    }
+
+    // We got EOS before reading all the content we expected.
+    return TS_EVENT_ERROR;
+}
+
+// Terminal state. Force a 403 Forbidden response.
+static TSEvent
+StateUnauthorized(AuthRequestContext * auth, void *)
+{
+    static const char msg[] = "authorization denied\n";
+
+    TSHttpTxnSetHttpRetStatus(auth->txn, TS_HTTP_STATUS_FORBIDDEN);
+    TSHttpTxnErrorBodySet(auth->txn, TSstrdup(msg), sizeof(msg) - 1, TSstrdup("text/plain"));
+
+    TSHttpTxnReenable(auth->txn, TS_EVENT_HTTP_ERROR);
+    return TS_EVENT_CONTINUE;
+}
+
+// Terminal state. Allow the original request to proceed.
+static TSEvent
+StateAuthorized(AuthRequestContext * auth, void *)
+{
+    const AuthOptions * options = auth->options();
+
+    AuthLogDebug("request authorized");
+
+    // Since the original request might have authentication headers, we may
+    // need to force ATS to ignore those in order to make it cacheable.
+    if (options->force) {
+        TSHttpTxnConfigIntSet(auth->txn, TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION, 1);
+    }
+
+    TSHttpTxnReenable(auth->txn, TS_EVENT_HTTP_CONTINUE);
+    return TS_EVENT_CONTINUE;
+}
+
+// Return true if the given request was tagged by a remap rule as needing
+// authorization.
+static bool
+AuthRequestIsTagged(TSHttpTxn txn)
+{
+    return AuthTaggedRequestArg != -1 &&
+        TSHttpTxnArgGet(txn, AuthTaggedRequestArg) != NULL;
+}
+
+static int
+AuthProxyGlobalHook(TSCont /* cont ATS_UNUSED */, TSEvent event, void * edata)
+{
+    AuthRequestContext * auth;
+    union {
+        TSHostLookupResult  dns;
+        TSHttpTxn           txn;
+        void *              edata;
+    } ptr;
+
+    ptr.edata = edata;
+    AuthLogDebug("handling event=%d edata=%p", (int)event, edata);
+
+    switch (event) {
+    case TS_EVENT_HTTP_OS_DNS:
+        // Ignore internal requests since we generated them.
+        if (TSHttpIsInternalRequest(ptr.txn) == TS_SUCCESS) {
+            // All our internal requests *must* hit the origin since it is the
+            // agent that needs to make the authorization decision. We can't
+            // allow that to be cached.
+            TSHttpTxnReqCacheableSet(ptr.txn, 0);
+
+            AuthLogDebug("re-enabling internal transaction");
+            TSHttpTxnReenable(ptr.txn, TS_EVENT_HTTP_CONTINUE);
+            return TS_EVENT_NONE;
+        }
+
+        // Hook this request if we are in global authorization mode or if a
+        // remap rule tagged it.
+        if (AuthGlobalOptions != NULL || AuthRequestIsTagged(ptr.txn)) {
+            auth = AuthRequestContext::allocate();
+            auth->state = StateTableInit;
+            auth->txn = ptr.txn;
+            return AuthRequestContext::dispatch(auth->cont, event, edata);
+        }
+
+        // fallthru
+
+    default:
+        return TS_EVENT_NONE;
+    }
+
+}
+
+static AuthOptions *
+AuthParseOptions(int argc, const char ** argv)
+{
+  // The const_cast<> here is magic to work around a flaw in the definition of struct option
+  // on some platforms (e.g. Solaris / Illumos). On sane platforms (e.g. linux), it'll get
+  // automatically casted back to the const char*, as the struct is defined in <getopt.h>.
+    static const struct option longopt[] =
+    {
+        { const_cast<char *>("auth-host"), required_argument, 0, 'h' },
+        { const_cast<char *>("auth-port"), required_argument, 0, 'p' },
+        { const_cast<char *>("auth-transform"), required_argument, 0, 't' },
+        { const_cast<char *>("force-cacheability"), no_argument, 0, 'c' },
+        {0, 0, 0, 0 }
+    };
+
+    AuthOptions * options = AuthNew<AuthOptions>();
+
+    options->transform = AuthWriteRedirectedRequest;
+    options->hostname = TSstrdup("127.0.0.1");
+
+    // We might parse arguments multiple times if we are loaded as a global
+    // plugin and a remap plugin. Reset optind so that getopt_long() does the
+    // right thing (ie. work instead of crash).
+    optind = 0;
+
+    for (;;) {
+        int opt;
+
+        opt = getopt_long(argc, (char * const *)argv, "", longopt, NULL);
+        switch (opt) {
+        case 'h':
+            TSfree(options->hostname);
+            options->hostname = TSstrdup(optarg);
+            break;
+        case 'p':
+            options->hostport = std::atoi(optarg);
+            break;
+        case 'c':
+            options->force = true;
+            break;
+        case 't':
+            if (strcasecmp(optarg, "redirect") == 0) {
+                options->transform = AuthWriteRedirectedRequest;
+            } else if (strcasecmp(optarg, "head") == 0) {
+                options->transform = AuthWriteHeadRequest;
+            } else {
+                AuthLogError("invalid authorization transform '%s'", optarg);
+                // XXX make this a fatal error?
+            }
+
+            break;
+        }
+
+        if (opt == -1) {
+            break;
+        }
+    }
+
+    return options;
+}
+#undef LONGOPT_OPTION_CAST
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+    TSPluginRegistrationInfo info;
+
+    info.plugin_name = (char *)"AuthProxy";
+    info.vendor_name = (char *)"Apache Software Foundation";
+    info.support_email = (char *)"dev@trafficserver.apache.org";
+
+    if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+        AuthLogError("plugin registration failed");
+    }
+
+    TSReleaseAssert(
+        TSHttpArgIndexReserve("AuthProxy", "AuthProxy authorization tag", &AuthTaggedRequestArg) == TS_SUCCESS
+    );
+
+    // We are in global mode. Authorize all requests.
+    AuthTaggedRequestOnly = false;
+
+    AuthOsDnsContinuation = TSContCreate(AuthProxyGlobalHook, NULL);
+    AuthGlobalOptions = AuthParseOptions(argc, argv);
+    AuthLogDebug("using authorization proxy at %s:%d", AuthGlobalOptions->hostname, AuthGlobalOptions->hostport);
+
+    // Catch the DNS hook. This triggers after reading the headers and
+    // resolving the requested host, but before performing any cache lookups.
+    TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, AuthOsDnsContinuation);
+}
+
+TSReturnCode
+TSRemapInit(TSRemapInterface * api, char * err, int errsz)
+{
+    (void)api;
+    (void)err;
+    (void)errsz;
+
+    TSReleaseAssert(
+        TSHttpArgIndexReserve("AuthProxy", "AuthProxy authorization tag", &AuthTaggedRequestArg) == TS_SUCCESS
+    );
+
+    // We are in remap mode. Only authorize tagged requests.
+    AuthTaggedRequestOnly = true;
+    AuthOsDnsContinuation = TSContCreate(AuthProxyGlobalHook, NULL);
+    return TS_SUCCESS;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char * argv[], void ** instance, char * /* err ATS_UNUSED */, int /* errsz ATS_UNUSED */)
+{
+    AuthOptions * options;
+
+    AuthLogDebug("using authorization proxy for remapping %s -> %s", argv[0], argv[1]);
+
+    // The first two arguments are the "from" and "to" URL string. We need to
+    // skip them, but we also require that there be an option to masquerade as
+    // argv[0], so we increment the argument indexes by 1 rather than by 2.
+    argc--;
+    argv++;
+    options = AuthParseOptions(argc, (const char **)argv);
+
+    *instance = options;
+    return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void * instance)
+{
+    AuthOptions * options = (AuthOptions *)instance;
+    AuthDelete(options);
+}
+
+TSRemapStatus
+TSRemapDoRemap(void * instance, TSHttpTxn txn, TSRemapRequestInfo * /* rri ATS_UNUSED */)
+{
+    AuthOptions * options = (AuthOptions *)instance;
+
+    TSHttpTxnArgSet(txn, AuthTaggedRequestArg, options);
+    TSHttpTxnHookAdd(txn, TS_HTTP_OS_DNS_HOOK, AuthOsDnsContinuation);
+    return TSREMAP_NO_REMAP;
+}
+
+// vim: set ts=4 sw=4 et :
diff --git a/plugins/experimental/authproxy/utils.cc b/plugins/experimental/authproxy/utils.cc
new file mode 100644
index 00000000..d55e1afd
--- /dev/null
+++ b/plugins/experimental/authproxy/utils.cc
@@ -0,0 +1,216 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "utils.h"
+
+#include <string>
+#include <cstring>
+#include <cstdlib>
+#include <cstdio>
+
+#include <getopt.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+const void *
+SockaddrGetAddress(const sockaddr * saddr)
+{
+    union {
+        const sockaddr *        sa;
+        const sockaddr_in *     sin;
+        const sockaddr_in6 *    sin6;
+    } addr;
+
+    addr.sa = saddr;
+    if (addr.sa->sa_family == PF_INET6) {
+        return &addr.sin6->sin6_addr;
+    } else {
+        TSReleaseAssert(addr.sin->sin_family == PF_INET);
+        return &addr.sin->sin_addr;
+    }
+}
+
+uint16_t
+SockaddrGetPort(const sockaddr * saddr)
+{
+    union {
+        const sockaddr *        sa;
+        const sockaddr_in *     sin;
+        const sockaddr_in6 *    sin6;
+    } addr;
+
+    addr.sa = saddr;
+    if (addr.sa->sa_family == PF_INET6) {
+        return addr.sin6->sin6_port;
+    } else {
+        TSReleaseAssert(addr.sin->sin_family == PF_INET);
+        return addr.sin->sin_port;
+    }
+}
+
+void
+HttpDebugHeader(TSMBuffer mbuf, TSMLoc mhdr)
+{
+    HttpIoBuffer    iobuf;
+    int64_t         nbytes;
+    int64_t         avail;
+    const char *    ptr;
+    TSIOBufferBlock blk;
+
+    TSHttpHdrPrint(mbuf, mhdr, iobuf.buffer);
+
+    blk = TSIOBufferReaderStart(iobuf.reader);
+    avail = TSIOBufferBlockReadAvail(blk, iobuf.reader);
+    ptr = (const char *)TSIOBufferBlockReadStart(blk, iobuf.reader, &nbytes);
+
+    AuthLogDebug(
+        "http request (%u of %u bytes):\n%*.*s",
+        (unsigned)nbytes, (unsigned)avail, (int)nbytes, (int)nbytes, ptr);
+}
+
+void
+HttpSetMimeHeader(TSMBuffer mbuf, TSMLoc mhdr, const char * name, unsigned value)
+{
+    TSMLoc mloc;
+
+    mloc = TSMimeHdrFieldFind(mbuf, mhdr, name, -1);
+    if (mloc == TS_NULL_MLOC) {
+        TSReleaseAssert(
+            TSMimeHdrFieldCreateNamed(mbuf, mhdr, name, -1, &mloc) == TS_SUCCESS
+        );
+    } else {
+        TSReleaseAssert(
+            TSMimeHdrFieldValuesClear(mbuf, mhdr, mloc) == TS_SUCCESS
+        );
+    }
+
+    TSReleaseAssert(
+        TSMimeHdrFieldValueUintInsert(mbuf, mhdr, mloc, 0 /* index */, value) == TS_SUCCESS
+    );
+
+    TSReleaseAssert(
+        TSMimeHdrFieldAppend(mbuf, mhdr, mloc) == TS_SUCCESS
+    );
+
+    TSHandleMLocRelease(mbuf, mhdr, mloc);
+}
+
+void
+HttpSetMimeHeader(TSMBuffer mbuf, TSMLoc mhdr, const char * name, const char * value)
+{
+    TSMLoc mloc;
+
+    mloc = TSMimeHdrFieldFind(mbuf, mhdr, name, -1);
+    if (mloc == TS_NULL_MLOC) {
+        TSReleaseAssert(
+            TSMimeHdrFieldCreateNamed(mbuf, mhdr, name, -1, &mloc) == TS_SUCCESS
+        );
+    } else {
+        TSReleaseAssert(
+            TSMimeHdrFieldValuesClear(mbuf, mhdr, mloc) == TS_SUCCESS
+        );
+    }
+
+    TSReleaseAssert(
+        TSMimeHdrFieldValueStringInsert(mbuf, mhdr, mloc, 0 /* index */, value, -1) == TS_SUCCESS
+    );
+
+    TSReleaseAssert(
+        TSMimeHdrFieldAppend(mbuf, mhdr, mloc) == TS_SUCCESS
+    );
+
+    TSHandleMLocRelease(mbuf, mhdr, mloc);
+}
+
+unsigned
+HttpGetContentLength(TSMBuffer mbuf, TSMLoc mhdr)
+{
+    TSMLoc      mloc;
+    unsigned    value = 0;
+
+    mloc = TSMimeHdrFieldFind(mbuf, mhdr, TS_MIME_FIELD_CONTENT_LENGTH, -1);
+    if (mloc != TS_NULL_MLOC) {
+        value = TSMimeHdrFieldValueUintGet(mbuf, mhdr, mloc, 0 /* index */);
+    }
+
+    TSHandleMLocRelease(mbuf, mhdr, mloc);
+    return value;
+}
+
+bool
+HttpIsChunkedEncoding(TSMBuffer mbuf, TSMLoc mhdr)
+{
+    TSMLoc  mloc;
+    bool    ischunked = false;
+
+    mloc = TSMimeHdrFieldFind(mbuf, mhdr, TS_MIME_FIELD_TRANSFER_ENCODING, -1);
+    if (mloc != TS_NULL_MLOC) {
+        const char * str;
+        int len;
+
+        str = TSMimeHdrFieldValueStringGet(mbuf, mhdr, mloc, -1 /* index */, &len);
+        if (str && len) {
+            ischunked = (strncmp("chunked", str, len) == 0);
+        }
+    }
+
+    TSHandleMLocRelease(mbuf, mhdr, mloc);
+    return ischunked;
+}
+
+bool
+HttpGetOriginHost(TSMBuffer mbuf, TSMLoc mhdr, char * name, size_t namelen)
+{
+    const char *    host;
+    int             len;
+    TSMLoc          mloc;
+
+    // First, try to get it from the Host header. The Host header this returns
+    // depends on whether pristine_host_hdr is set.
+    mloc = TSMimeHdrFieldFind(mbuf, mhdr, TS_MIME_FIELD_HOST, -1);
+    if (mloc != TS_NULL_MLOC) {
+        host = TSMimeHdrFieldValueStringGet(mbuf, mhdr, mloc, -1 /* index */, &len);
+        TSHandleMLocRelease(mbuf, mhdr, mloc);
+
+        if (host) {
+            AuthLogDebug("using origin %.*s from host header", len, host);
+            len = std::min(len, (int)namelen - 1);
+            memcpy(name, host, len);
+            name[len] = '\0';
+            return true;
+        }
+    }
+
+    // If that didn't work, try to get the origin host from the request URL.
+    if (TSHttpHdrUrlGet(mbuf, mhdr, &mloc) == TS_SUCCESS) {
+        host = TSUrlHostGet(mbuf, mloc, &len);
+        TSHandleMLocRelease(mbuf, mhdr, mloc);
+
+        if (host) {
+            AuthLogDebug("using origin %.*s from request URL", len, host);
+            len = std::min(len, (int)namelen - 1);
+            memcpy(name, host, len);
+            name[len] = '\0';
+            return true;
+        }
+    }
+
+    return false;
+}
+
+// vim: set ts=4 sw=4 et :
diff --git a/plugins/experimental/authproxy/utils.h b/plugins/experimental/authproxy/utils.h
new file mode 100644
index 00000000..06861713
--- /dev/null
+++ b/plugins/experimental/authproxy/utils.h
@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ts/ts.h>
+#include <netinet/in.h>
+#include <memory>
+
+#define AuthLogDebug(fmt, ...) TSDebug("AuthProxy", "%s: " fmt, __func__, ##__VA_ARGS__)
+#define AuthLogError(fmt, ...) TSError(fmt, ##__VA_ARGS__)
+
+template <typename T>
+T * AuthNew() {
+    return new(TSmalloc(sizeof(T))) T();
+}
+
+template <typename T>
+void AuthDelete(T * ptr) {
+    ptr->~T();
+    TSfree(ptr);
+}
+
+struct HttpIoBuffer
+{
+    TSIOBuffer          buffer;
+    TSIOBufferReader    reader;
+
+    explicit HttpIoBuffer(TSIOBufferSizeIndex size = TS_IOBUFFER_SIZE_INDEX_32K) {
+        this->buffer = TSIOBufferSizedCreate(size);
+        this->reader = TSIOBufferReaderAlloc(this->buffer);
+    }
+
+    ~HttpIoBuffer() {
+        TSIOBufferReaderFree(this->reader);
+        TSIOBufferDestroy(this->buffer);
+    }
+
+    void reset(TSIOBufferSizeIndex size = TS_IOBUFFER_SIZE_INDEX_32K) {
+        TSIOBufferReaderFree(this->reader);
+        TSIOBufferDestroy(this->buffer);
+        this->buffer = TSIOBufferSizedCreate(size);
+        this->reader = TSIOBufferReaderAlloc(this->buffer);
+    }
+
+    void consume(size_t nbytes) {
+        TSIOBufferReaderConsume(this->reader, nbytes);
+    }
+
+private:
+    HttpIoBuffer(const HttpIoBuffer&); //delete
+    HttpIoBuffer& operator=(const HttpIoBuffer&); //delete
+};
+
+struct HttpHeader
+{
+    HttpHeader()
+        : buffer(TSMBufferCreate()), header(TSHttpHdrCreate(buffer)) {
+    }
+
+    ~HttpHeader() {
+        TSHttpHdrDestroy(this->buffer, this->header);
+
+        TSHandleMLocRelease(this->buffer, TS_NULL_MLOC, this->header);
+        TSMBufferDestroy(this->buffer);
+    }
+
+    TSMBuffer   buffer;
+    TSMLoc      header;
+
+private:
+    HttpHeader(const HttpHeader&); // delete
+    HttpHeader& operator=(const HttpHeader&); // delete
+};
+
+// Return true if the given HTTP header specified chunked transfer encoding.
+bool HttpIsChunkedEncoding(TSMBuffer mbuf, TSMLoc mhdr);
+
+// Return the value of the Content-Length header.
+unsigned HttpGetContentLength(TSMBuffer mbuf, TSMLoc mhdr);
+
+// Set the value of an arbitrary HTTP header.
+void HttpSetMimeHeader(TSMBuffer mbuf, TSMLoc mhdr, const char * name, const char * value);
+void HttpSetMimeHeader(TSMBuffer mbuf, TSMLoc mhdr, const char * name, unsigned value);
+
+// Get the origin server name for the given request. Takes the URL and the Host
+// header into account (preferring the former).
+bool HttpGetOriginHost(TSMBuffer mbuf, TSMLoc mhdr, char * name, size_t namelen);
+
+// Dump the given HTTP header to the debug log.
+void HttpDebugHeader(TSMBuffer mbuf, TSMLoc mhdr);
+
+// Return the sockaddr port (if any);
+uint16_t SockaddrGetPort(const sockaddr * saddr);
+// Return a pointer to the sockaddr address.
+const void * SockaddrGetAddress(const sockaddr * saddr);
+
+// vim: set ts=4 sw=4 et :
diff --git a/plugins/experimental/background_fetch/Makefile.am b/plugins/experimental/background_fetch/Makefile.am
new file mode 100644
index 00000000..fef8d44a
--- /dev/null
+++ b/plugins/experimental/background_fetch/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = background_fetch.la
+background_fetch_la_SOURCES = background_fetch.cc
+background_fetch_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/background_fetch/Makefile.in b/plugins/experimental/background_fetch/Makefile.in
new file mode 100644
index 00000000..49becca2
--- /dev/null
+++ b/plugins/experimental/background_fetch/Makefile.in
@@ -0,0 +1,935 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = plugins/experimental/background_fetch
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
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+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/background_fetch/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/background_fetch/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+background_fetch.la: $(background_fetch_la_OBJECTS) $(background_fetch_la_DEPENDENCIES) $(EXTRA_background_fetch_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(background_fetch_la_LINK) -rpath $(pkglibdir) $(background_fetch_la_OBJECTS) $(background_fetch_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/background_fetch.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
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+install-man:
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+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
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+pdf-am:
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+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/background_fetch/background_fetch.cc b/plugins/experimental/background_fetch/background_fetch.cc
new file mode 100644
index 00000000..334caa58
--- /dev/null
+++ b/plugins/experimental/background_fetch/background_fetch.cc
@@ -0,0 +1,630 @@
+/** @file
+
+    Plugin to perform background fetches of certain content that would
+    otherwise not be cached. For example, Range: requests / responses.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+*/
+#include <stdio.h>
+#include <string.h>
+#include <string>
+#include <stdarg.h>
+#include <getopt.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+#include "ink_defs.h"
+
+
+// Some wonkiness around compiler version and the unordered map (hash)
+#if HAVE_UNORDERED_MAP
+#  include <unordered_map>
+   typedef std::unordered_map<std::string, bool> OutstandingRequests;
+#else
+#  include <map>
+   typedef std::map<std::string, bool> OutstandingRequests;
+#endif
+
+// Constants
+const char PLUGIN_NAME[] = "background_fetch";
+
+
+///////////////////////////////////////////////////////////////////////////
+// Remove a header (fully) from an TSMLoc / TSMBuffer. Return the number
+// of fields (header values) we removed.
+int
+remove_header(TSMBuffer bufp, TSMLoc hdr_loc, const char* header, int len)
+{
+  TSMLoc field = TSMimeHdrFieldFind(bufp, hdr_loc, header, len);
+  int c = 0;
+
+  while (field) {
+    ++c;
+    TSMLoc tmp = TSMimeHdrFieldNextDup(bufp, hdr_loc, field);
+
+    TSMimeHdrFieldDestroy(bufp, hdr_loc, field);
+    TSHandleMLocRelease(bufp, hdr_loc, field);
+    field = tmp;
+  }
+
+  return c;
+}
+
+///////////////////////////////////////////////////////////////////////////
+// Set a header to a specific value. This will avoid going to through a
+// remove / add sequence in case of an existing header.
+// but clean.
+bool
+set_header(TSMBuffer bufp, TSMLoc hdr_loc, const char* header, int len, const char* val, int val_len)
+{
+  if (!bufp || !hdr_loc || !header || len <= 0 || !val || val_len <= 0) {
+    return false;
+  }
+
+  bool ret = false;
+  TSMLoc field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, header, len);
+
+  if (!field_loc) {
+    // No existing header, so create one
+    if (TS_SUCCESS == TSMimeHdrFieldCreateNamed(bufp, hdr_loc, header, len, &field_loc)) {
+      if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(bufp, hdr_loc, field_loc, -1, val, val_len)) {
+        TSMimeHdrFieldAppend(bufp, hdr_loc, field_loc);
+        ret = true;
+      }
+      TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    }
+  } else {
+    TSMLoc tmp = NULL;
+    bool first = true;
+
+    while (field_loc) {
+      if (first) {
+        first = false;
+        if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(bufp, hdr_loc, field_loc, -1, val, val_len)) {
+          ret = true;
+        }
+      } else {
+        TSMimeHdrFieldDestroy(bufp, hdr_loc, field_loc);
+      }
+      tmp = TSMimeHdrFieldNextDup(bufp, hdr_loc, field_loc);
+      TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+      field_loc = tmp;
+    }
+  }
+
+  return ret;
+}
+
+
+///////////////////////////////////////////////////////////////////////////
+// Dump a header on stderr, useful together with TSDebug().
+void
+dump_headers(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  TSIOBuffer output_buffer;
+  TSIOBufferReader reader;
+  TSIOBufferBlock block;
+  const char* block_start;
+  int64_t block_avail;
+
+  output_buffer = TSIOBufferCreate();
+  reader = TSIOBufferReaderAlloc(output_buffer);
+
+  /* This will print  just MIMEFields and not the http request line */
+  TSMimeHdrPrint(bufp, hdr_loc, output_buffer);
+
+  /* We need to loop over all the buffer blocks, there can be more than 1 */
+  block = TSIOBufferReaderStart(reader);
+  do {
+    block_start = TSIOBufferBlockReadStart(block, reader, &block_avail);
+    if (block_avail > 0) {
+      TSDebug(PLUGIN_NAME, "Headers are:\n%.*s", static_cast<int>(block_avail), block_start);
+    }
+    TSIOBufferReaderConsume(reader, block_avail);
+    block = TSIOBufferReaderStart(reader);
+  } while (block && block_avail != 0);
+
+  /* Free up the TSIOBuffer that we used to print out the header */
+  TSIOBufferReaderFree(reader);
+  TSIOBufferDestroy(output_buffer);
+}
+
+
+///////////////////////////////////////////////////////////////////////////
+// Struct to hold configurations and state. This can be global, or per
+// remap rule. This also holds the list of currently outstanding URLs,
+// such that we can avoid sending more than one background fill per URL at
+// any given time.
+class BGFetchConfig {
+public:
+  BGFetchConfig()
+    : log(NULL)
+  {
+    _lock = TSMutexCreate();
+  }
+
+  ~BGFetchConfig()
+  {
+    // ToDo: Destroy mutex ? TS-1432
+  }
+
+  void create_log(const char* log_name)
+  {
+    TSDebug(PLUGIN_NAME, "Creating log name %s\n", log_name);
+    TSAssert(TS_SUCCESS == TSTextLogObjectCreate(log_name, TS_LOG_MODE_ADD_TIMESTAMP, &log));
+  }
+
+  bool acquire(const std::string &url)
+  {
+    bool ret;
+
+    TSMutexLock(_lock);
+    if (_urls.end() == _urls.find(url)) {
+      _urls[url] = true;
+      ret = true;
+    } else {
+      ret = false;
+    }
+    TSMutexUnlock(_lock);
+
+    return ret;
+  }
+
+  bool release(const std::string &url)
+  {
+    bool ret;
+
+    TSMutexLock(_lock);
+    if (_urls.end() == _urls.find(url)) {
+      ret = false;
+    } else {
+      _urls.erase(url);
+      ret = true;
+    }
+    TSMutexUnlock(_lock);
+
+    return ret;
+  }
+
+  TSTextLogObject log;
+
+private:
+  OutstandingRequests _urls;
+  TSMutex _lock;
+};
+
+BGFetchConfig* gConfig;
+
+//////////////////////////////////////////////////////////////////////////////
+// Hold and manage some state for the background fetch continuation
+// This is necessary, because the TXN is likely to not be available
+// during the time we fetch from origin.
+static int cont_bg_fetch(TSCont contp, TSEvent event, void* edata);
+
+struct BGFetchData
+{
+  BGFetchData(BGFetchConfig* cfg=gConfig)
+    : hdr_loc(TS_NULL_MLOC), url_loc(TS_NULL_MLOC), vc(NULL), _bytes(0), _cont(NULL),  _config(cfg)
+  {
+    mbuf = TSMBufferCreate();
+  }
+
+  ~BGFetchData()
+  {
+    release_url();
+
+    TSHandleMLocRelease(mbuf, TS_NULL_MLOC, hdr_loc);
+    TSHandleMLocRelease(mbuf, TS_NULL_MLOC, url_loc);
+
+    TSMBufferDestroy(mbuf);
+
+    if (vc) {
+      TSError("%s: Destroyed BGFetchDATA while VC was alive", PLUGIN_NAME);
+      TSVConnClose(vc);
+      vc = NULL;
+    }
+
+    // If we got schedule, also clean that up
+    if (_cont) {
+      TSContDestroy(_cont);
+
+      TSIOBufferReaderFree(req_io_buf_reader);
+      TSIOBufferDestroy(req_io_buf);
+      TSIOBufferReaderFree(resp_io_buf_reader);
+      TSIOBufferDestroy(resp_io_buf);
+    }
+  }
+
+  bool acquire_url() const { return _config->acquire(_url); }
+  bool release_url() const { return _config->release(_url); }
+
+  const char* get_url() const { return _url.c_str(); }
+  void add_bytes(int64_t b) { _bytes += b; }
+
+  bool initialize(TSMBuffer request, TSMLoc req_hdr, TSHttpTxn txnp);
+  void schedule();
+  void log(TSEvent event) const;
+
+  TSMBuffer mbuf;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+  struct sockaddr_storage client_ip;
+
+  // This is for the actual background fetch / NetVC
+  TSVConn vc;
+  TSIOBuffer req_io_buf, resp_io_buf;
+  TSIOBufferReader req_io_buf_reader, resp_io_buf_reader;
+  TSVIO r_vio, w_vio;
+
+private:
+  std::string _url;
+  int64_t _bytes;
+  TSCont _cont;
+  BGFetchConfig* _config;
+};
+
+
+// This sets up the data and continuation properly, this is done outside
+// of the CTor, since this can actually fail. If we fail, the data is
+// useless, and should be delete'd.
+//
+// This needs the txnp temporarily, so it can copy the pristine request
+// URL. The txnp is not used once initialize() returns.
+//
+// Upon succesful completion, the struct should be ready to start a
+// background fetch.
+bool
+BGFetchData::initialize(TSMBuffer request, TSMLoc req_hdr, TSHttpTxn txnp)
+{
+  TSAssert(TS_NULL_MLOC == hdr_loc);
+  TSAssert(TS_NULL_MLOC == url_loc);
+  struct sockaddr const* ip = TSHttpTxnClientAddrGet(txnp);
+
+  if (ip) {
+    if (ip->sa_family == AF_INET) {
+      memcpy(&client_ip, ip, sizeof(sockaddr_in));
+    } else if (ip->sa_family == AF_INET6) {
+      memcpy(&client_ip, ip, sizeof(sockaddr_in6));
+    } else {
+      TSError("%s: Unknown address family %d", PLUGIN_NAME, ip->sa_family);
+    }
+  } else {
+    TSError("%s: failed to get client host info", PLUGIN_NAME);
+    return false;
+  }
+
+  hdr_loc = TSHttpHdrCreate(mbuf);
+  if (TS_SUCCESS == TSHttpHdrCopy(mbuf, hdr_loc, request, req_hdr)) {
+    TSMLoc purl;
+    int len;
+
+    // Now copy the pristine request URL into our MBuf
+    if ((TS_SUCCESS == TSHttpTxnPristineUrlGet(txnp, &request, &purl)) &&
+        (TS_SUCCESS == TSUrlClone(mbuf, request, purl, &url_loc))) {
+      char* url = TSUrlStringGet(mbuf, url_loc, &len);
+
+      _url.append(url, len); // Save away the URL for later use when acquiring lock
+      TSfree(static_cast<void*>(url));
+
+      if (TS_SUCCESS == TSHttpHdrUrlSet(mbuf, hdr_loc, url_loc)) {
+        // Make sure we have the correct Host: header for this request.
+        const char *hostp = TSUrlHostGet(mbuf, url_loc, &len);
+
+        if (set_header(mbuf, hdr_loc, TS_MIME_FIELD_HOST, TS_MIME_LEN_HOST, hostp, len)) {
+          TSDebug(PLUGIN_NAME, "Set header Host: %.*s", len, hostp);
+        }
+
+        // Next, remove any Range: headers from our request.
+        if (remove_header(mbuf, hdr_loc, TS_MIME_FIELD_RANGE, TS_MIME_LEN_RANGE) > 0) {
+          TSDebug(PLUGIN_NAME, "Removed the Range: header from request");
+        }
+
+        return true;
+      }
+    }
+  }
+
+  // Something failed.
+  return false;
+}
+
+
+// Create, setup and schedule the background fetch continuation.
+void
+BGFetchData::schedule()
+{
+  TSAssert(NULL == _cont);
+
+  // Setup the continuation
+  _cont = TSContCreate(cont_bg_fetch, TSMutexCreate());
+  TSContDataSet(_cont, static_cast<void*>(this));
+
+  // Initialize the VIO stuff (for the fetch)
+  req_io_buf = TSIOBufferCreate();
+  req_io_buf_reader = TSIOBufferReaderAlloc(req_io_buf);
+  resp_io_buf = TSIOBufferCreate();
+  resp_io_buf_reader = TSIOBufferReaderAlloc(resp_io_buf);
+
+  // Schedule
+  TSContSchedule(_cont, 0, TS_THREAD_POOL_NET);
+}
+
+
+// Log format is:
+//    remap-tag bytes status url
+void
+BGFetchData::log(TSEvent event) const
+{
+  BGFetchConfig* conf = _config ? _config : gConfig;
+
+  if (conf->log) {
+    const char* status;
+
+    switch (event) {
+    case TS_EVENT_VCONN_EOS:
+      status = "EOS";
+      break;
+    case TS_EVENT_VCONN_INACTIVITY_TIMEOUT:
+      status = "TIMEOUT";
+      break;
+    case TS_EVENT_ERROR:
+      status = "ERROR";
+    case TS_EVENT_VCONN_READ_COMPLETE:
+      status = "READ_COMP";
+      break;
+    default:
+      status = "UNKNOWN";
+      break;
+    }
+
+    // ToDo: Also deal with per-remap tagging
+    TSTextLogObjectWrite(conf->log, "%s %" PRId64 " %s %s", "-", _bytes, status, _url.c_str());
+  }
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+// Continuation to perform a background fill of a URL. This is pretty
+// expensive (memory allocations etc.), we could eliminate maybe the
+// std::string, but I think it's fine for now.
+static int
+cont_bg_fetch(TSCont contp, TSEvent event, void* /* edata ATS_UNUSED */)
+{
+  BGFetchData* data = static_cast<BGFetchData*>(TSContDataGet(contp));
+  int64_t avail;
+
+  switch (event) {
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_TIMEOUT:
+    // Debug info for this particular bg fetch (put all debug in here please)
+    if (TSIsDebugTagSet(PLUGIN_NAME)) {
+      char buf[INET6_ADDRSTRLEN];
+      const sockaddr* sockaddress = (const sockaddr*)&data->client_ip;
+
+      switch (sockaddress->sa_family) {
+      case AF_INET:
+        inet_ntop(AF_INET, &(((struct sockaddr_in *) sockaddress)->sin_addr), buf, INET_ADDRSTRLEN);
+        TSDebug(PLUGIN_NAME, "Client IPv4 = %s", buf);
+        break;
+      case AF_INET6:
+        inet_ntop(AF_INET6, &(((struct sockaddr_in6 *) sockaddress)->sin6_addr), buf, INET6_ADDRSTRLEN);
+        TSDebug(PLUGIN_NAME, "Client IPv6 = %s", buf);
+        break;
+      default:
+        TSError("%s: Unknown address family %d", PLUGIN_NAME, sockaddress->sa_family);
+        break;
+      }
+      TSDebug(PLUGIN_NAME, "Starting bg fetch on: %s", data->get_url());
+      dump_headers(data->mbuf, data->hdr_loc);
+    }
+
+    // Setup the NetVC for background fetch
+    TSAssert(NULL == data->vc);
+    if ((data->vc = TSHttpConnect((sockaddr*)&data->client_ip)) != NULL) {
+      TSHttpHdrPrint(data->mbuf, data->hdr_loc, data->req_io_buf);
+      // We never send a body with the request. ToDo: Do we ever need to support that ?
+      TSIOBufferWrite(data->req_io_buf, "\r\n", 2);
+
+      data->r_vio = TSVConnRead(data->vc, contp, data->resp_io_buf, INT64_MAX);
+      data->w_vio = TSVConnWrite(data->vc, contp, data->req_io_buf_reader,
+                                 TSIOBufferReaderAvail(data->req_io_buf_reader));
+    } else {
+      delete data;
+      TSError("%s: failed to connect to internal process, major malfunction", PLUGIN_NAME);
+    }
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug(PLUGIN_NAME, "Write Complete");
+    break;
+
+  case TS_EVENT_VCONN_READ_READY:
+    avail = TSIOBufferReaderAvail(data->resp_io_buf_reader);
+    data->add_bytes(avail);
+    TSIOBufferReaderConsume(data->resp_io_buf_reader, avail);
+    TSVIONDoneSet(data->r_vio, TSVIONDoneGet(data->r_vio) + avail);
+    TSVIOReenable(data->r_vio);
+    break;
+
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+  case TS_EVENT_VCONN_INACTIVITY_TIMEOUT:
+  case TS_EVENT_ERROR:
+    if (event == TS_EVENT_VCONN_INACTIVITY_TIMEOUT) {
+      TSDebug(PLUGIN_NAME, "Encountered Inactivity Timeout");
+      TSVConnAbort(data->vc, TS_VC_CLOSE_ABORT);
+    } else {
+      TSVConnClose(data->vc);
+    }
+
+    TSDebug(PLUGIN_NAME, "Closing down background transaction, event= %s(%d)", TSHttpEventNameLookup(event), event);
+    avail = TSIOBufferReaderAvail(data->resp_io_buf_reader);
+    data->add_bytes(avail);
+    TSIOBufferReaderConsume(data->resp_io_buf_reader, avail);
+    TSVIONDoneSet(data->r_vio, TSVIONDoneGet(data->r_vio) + avail);
+
+    data->log(event);
+    data->vc = NULL;
+    // Close, release and cleanup
+    delete data;
+    break;
+
+  default:
+    TSDebug(PLUGIN_NAME, "Unhandled event: %s (%d)", TSHttpEventNameLookup(event), event);
+    break;
+  }
+
+  return 0;
+}
+
+///////////////////////////////////////////////////////////////////////////
+// This is a TXN hook, used to verify that the response (before sending to
+// originating client) is indeed cacheable. This has to be deferred, because
+// we might have plugins that changes the cacheability of an Origin response.
+//
+static int
+cont_check_cacheable(TSCont contp, TSEvent /* event ATS_UNUSED */, void* edata)
+{
+  // ToDo: If we want to support per-remap configurations, we have to pass along the data here
+  TSHttpTxn txnp = static_cast<TSHttpTxn>(edata);
+  TSMBuffer response, request;
+  TSMLoc resp_hdr, req_hdr;
+
+  if (TS_SUCCESS == TSHttpTxnServerRespGet(txnp, &response, &resp_hdr)) {
+    if (TS_SUCCESS == TSHttpTxnClientReqGet(txnp, &request, &req_hdr)) {
+      // Temporarily change the response status to 200 OK, so we can reevaluate cacheability.
+      TSHttpHdrStatusSet(response, resp_hdr, TS_HTTP_STATUS_OK);
+      bool cacheable = TSHttpTxnIsCacheable(txnp, NULL, response);
+      TSHttpHdrStatusSet(response, resp_hdr, TS_HTTP_STATUS_PARTIAL_CONTENT);
+
+      TSDebug(PLUGIN_NAME, "Testing: request / response is cacheable?");
+      if (cacheable) {
+        BGFetchData* data = new BGFetchData();
+
+        // Initialize the data structure (can fail) and acquire a privileged lock on the URL
+        if (data->initialize(request, req_hdr, txnp) && data->acquire_url()) {
+          data->schedule();
+        } else {
+          delete data; // Not sure why this would happen, but ok.
+        }
+      }
+      // Release the request MLoc
+      TSHandleMLocRelease(request, TS_NULL_MLOC, req_hdr);
+    }
+    // Release the response MLoc
+    TSHandleMLocRelease(response, TS_NULL_MLOC, resp_hdr);
+  }
+
+  // Reenable and continue with the state machine.
+  TSContDestroy(contp);
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+
+  return 0;
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+// Main "plugin", which is a global READ_RESPONSE_HDR hook. Before
+// initiating a background fetch, this checks:
+//
+//     1. Is this an internal request? This avoid infinite loops...
+// and
+//     2. Is the response from origin a 206 (Partial)?
+//
+// We defer the check on cacheability to the SEND_RESPONSE_HDR hook, since
+// there could be other plugins that modifies the response after us.
+//
+static int
+cont_handle_response(TSCont /* contp ATS_UNUSED */, TSEvent /* event ATS_UNUSED */, void* edata)
+{
+  // ToDo: If we want to support per-remap configurations, we have to pass along the data here
+  TSHttpTxn txnp = static_cast<TSHttpTxn>(edata);
+
+  // 1. Make sure it's not an internal request first.
+  TSDebug(PLUGIN_NAME, "Testing: request is internal?");
+  if (TSHttpIsInternalRequest(txnp) != TS_SUCCESS) {
+    TSMBuffer response;
+    TSMLoc resp_hdr;
+
+    if (TS_SUCCESS == TSHttpTxnServerRespGet(txnp, &response, &resp_hdr)) {
+      // ToDo: Check the MIME type first, to see if it's a type we care about.
+      // ToDo: Such MIME types should probably be per remap rule.
+
+      // 2. Only deal with 206 responses from Origin
+      TSDebug(PLUGIN_NAME, "Testing: response is 206?");
+      if (TS_HTTP_STATUS_PARTIAL_CONTENT == TSHttpHdrStatusGet(response, resp_hdr)) {
+        // Everything looks good so far, add a TXN hook for SEND_RESPONSE_HDR
+        TSCont contp = TSContCreate(cont_check_cacheable, NULL);
+
+        TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+      }
+      // Release the response MLoc
+      TSHandleMLocRelease(response, TS_NULL_MLOC, resp_hdr);
+    }
+  }
+
+  // Reenable and continue with the state machine.
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return 0;
+}
+
+
+///////////////////////////////////////////////////////////////////////////
+// Setup global hooks
+void
+TSPluginInit(int argc, const char* argv[])
+{
+  TSPluginRegistrationInfo info;
+  static const struct option longopt[] = {
+    { "log", required_argument, NULL, 'l' },
+    {NULL, no_argument, NULL, '\0' }
+  };
+
+  info.plugin_name = (char*)PLUGIN_NAME;
+  info.vendor_name = (char*)"Apache Software Foundation";
+  info.support_email = (char*)"dev@trafficserver.apache.org";
+
+  if (TS_SUCCESS != TSPluginRegister(TS_SDK_VERSION_3_0 , &info)) {
+    TSError("%s: plugin registration failed.\n", PLUGIN_NAME);
+  }
+
+  gConfig = new BGFetchConfig();
+  optind = 1;
+
+  while (true) {
+    int opt = getopt_long(argc, (char * const *)argv, "l", longopt, NULL);
+
+    switch (opt) {
+    case 'l':
+      gConfig->create_log(optarg);
+      break;
+    }
+
+    if (opt == -1) {
+      break;
+    }
+  }
+
+
+  TSDebug(PLUGIN_NAME, "Initialized");
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, TSContCreate(cont_handle_response, NULL));
+}
diff --git a/plugins/experimental/balancer/Makefile.am b/plugins/experimental/balancer/Makefile.am
new file mode 100644
index 00000000..02df2b95
--- /dev/null
+++ b/plugins/experimental/balancer/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = balancer.la
+balancer_la_SOURCES = balancer.cc roundrobin.cc hash.cc balancer.h
+balancer_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
diff --git a/plugins/experimental/balancer/Makefile.in b/plugins/experimental/balancer/Makefile.in
new file mode 100644
index 00000000..8f8ef921
--- /dev/null
+++ b/plugins/experimental/balancer/Makefile.in
@@ -0,0 +1,954 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = plugins/experimental/balancer
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
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+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
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+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+balancer_la_LIBADD =
+am_balancer_la_OBJECTS = balancer.lo roundrobin.lo hash.lo
+balancer_la_OBJECTS = $(am_balancer_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
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+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
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+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
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+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
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+  -module \
+  -shared \
+  -avoid-version
+
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+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
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+balancer_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/balancer/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/balancer/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
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+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+balancer.la: $(balancer_la_OBJECTS) $(balancer_la_DEPENDENCIES) $(EXTRA_balancer_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(balancer_la_LINK) -rpath $(pkglibdir) $(balancer_la_OBJECTS) $(balancer_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/balancer.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hash.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/roundrobin.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/balancer/balancer.cc b/plugins/experimental/balancer/balancer.cc
new file mode 100644
index 00000000..1eb0077b
--- /dev/null
+++ b/plugins/experimental/balancer/balancer.cc
@@ -0,0 +1,133 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "balancer.h"
+#include <ts/remap.h>
+#include <stdio.h>
+#include <getopt.h>
+#include <string.h>
+#include <iterator>
+
+// The policy type is the first comma-separated token.
+static BalancerInstance *
+MakeBalancerInstance(const char * opt)
+{
+  const char * end = strchr(opt, ',');
+  size_t len = end ? std::distance(opt, end) : strlen(opt);
+
+  if (len == lengthof("hash") && strncmp(opt, "hash", len) == 0) {
+    return MakeHashBalancer(end ? end + 1 : NULL);
+  } else if (len == lengthof("roundrobin") && strncmp(opt, "roundrobin", len) == 0) {
+    return MakeRoundRobinBalancer(end ? end + 1 : NULL);
+  } else {
+    TSError("balancer: invalid balancing policy '%.*s'", (int)len, opt);
+    return NULL;
+  }
+
+}
+
+TSReturnCode
+TSRemapInit(TSRemapInterface * /* api */, char * /* errbuf */, int /* bufsz */)
+{
+  return TS_SUCCESS;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// One instance per remap.config invocation.
+//
+TSReturnCode
+TSRemapNewInstance(int argc, char * argv[], void ** instance, char * errbuf, int errbuf_size)
+{
+  static const struct option longopt[] = {
+    { const_cast<char *>("policy"), required_argument, 0, 'p' },
+    {0, 0, 0, 0 }
+  };
+
+  BalancerInstance * balancer = NULL;
+
+  // The first two arguments are the "from" and "to" URL string. We need to
+  // skip them, but we also require that there be an option to masquerade as
+  // argv[0], so we increment the argument indexes by 1 rather than by 2.
+  argc--;
+  argv++;
+
+  optind = 0;
+  for (;;) {
+    int opt;
+
+    opt = getopt_long(argc, (char * const *)argv, "", longopt, NULL);
+    switch (opt) {
+    case 'p':
+      balancer = MakeBalancerInstance(optarg);
+      break;
+    case -1:
+      break;
+    default:
+      snprintf(errbuf, errbuf_size, "invalid balancer option '%d'", opt);
+      return TS_ERROR;
+    }
+
+    if (opt == -1) {
+        break;
+    }
+  }
+
+  if (!balancer) {
+    strncpy(errbuf, "missing balancer policy", errbuf_size);
+    return TS_ERROR;
+  }
+
+  // Pick up the remaining options as balance targets.
+  for (int i = optind; i < argc; ++i) {
+    balancer->push_target(argv[i]);
+  }
+
+  *instance = balancer;
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void * instance)
+{
+  delete (BalancerInstance *)instance;
+}
+
+TSRemapStatus
+TSRemapDoRemap(void * instance, TSHttpTxn txn, TSRemapRequestInfo * rri)
+{
+  BalancerInstance * balancer = (BalancerInstance *)instance;
+  const char * target;
+
+  target = balancer->balance(txn, rri);
+  if (TSIsDebugTagSet("balancer")) {
+    char * url;
+    int len;
+
+    url = TSHttpTxnEffectiveUrlStringGet(txn, &len);
+    TSDebug("balancer", "%s <- %.*s", target, len, url);
+    TSfree(url);
+  }
+
+  TSUrlHostSet(rri->requestBufp, rri->requestUrl, target, -1);
+  return TSREMAP_DID_REMAP;
+}
diff --git a/plugins/experimental/balancer/balancer.h b/plugins/experimental/balancer/balancer.h
new file mode 100644
index 00000000..710e629e
--- /dev/null
+++ b/plugins/experimental/balancer/balancer.h
@@ -0,0 +1,46 @@
+/** @file
+ *
+ *  A brief file description
+ *
+ *  @section license License
+ *
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef BALANCER_H_29177589_32F1_4D93_AE4F_1E140EDCC273
+#define BALANCER_H_29177589_32F1_4D93_AE4F_1E140EDCC273
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+
+// Return the length of a string literal.
+template <int N> unsigned
+lengthof(const char (&)[N]) {
+  return N - 1;
+}
+
+struct BalancerInstance
+{
+  virtual ~BalancerInstance() {}
+  virtual void push_target(const char *) = 0;
+  virtual const char * balance(TSHttpTxn, TSRemapRequestInfo *) = 0;
+};
+
+BalancerInstance * MakeHashBalancer(const char *);
+BalancerInstance * MakeRoundRobinBalancer(const char *);
+
+#endif /* BALANCER_H_29177589_32F1_4D93_AE4F_1E140EDCC273 */
diff --git a/plugins/experimental/balancer/hash.cc b/plugins/experimental/balancer/hash.cc
new file mode 100644
index 00000000..9d2a2041
--- /dev/null
+++ b/plugins/experimental/balancer/hash.cc
@@ -0,0 +1,207 @@
+/** @file
+ *
+ *  A brief file description
+ *
+ *  @section license License
+ *
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "balancer.h"
+#include <stdlib.h>
+#include <openssl/md5.h>
+#include <netinet/in.h>
+#include <string.h>
+#include <map>
+#include <string>
+#include <vector>
+
+namespace {
+
+size_t
+sockaddrlen(const struct sockaddr * sa)
+{
+  switch (sa->sa_family) {
+    case AF_INET: return sizeof(struct sockaddr_in);
+    case AF_INET6: return sizeof(struct sockaddr_in6);
+    default: TSReleaseAssert(0 && "unsupported socket type");
+  }
+}
+
+struct md5_key {
+
+  md5_key() {}
+
+  md5_key(const std::string& str, unsigned i) {
+    MD5_CTX ctx;
+
+    MD5_Init(&ctx);
+    MD5_Update(&ctx, str.data(), str.size());
+    MD5_Update(&ctx, &i, sizeof(i));
+    MD5_Final(this->key, &ctx);
+  }
+
+  bool operator < (const md5_key& rhs) const {
+    return memcmp(this->key, rhs.key, sizeof(this->key)) < 0;
+  }
+
+  unsigned char key[MD5_DIGEST_LENGTH];
+};
+
+typedef void (*HashComponent)(TSHttpTxn txn, TSRemapRequestInfo *, MD5_CTX *);
+
+// Hash on the source IP address;
+void
+HashTxnSrcaddr(TSHttpTxn txn, TSRemapRequestInfo *, MD5_CTX * ctx)
+{
+  struct sockaddr const * sa;
+
+  sa = TSHttpTxnIncomingAddrGet(txn);
+  if (txn) {
+    MD5_Update(ctx, sa, sockaddrlen(sa));
+    TSDebug("balancer", "%s(addr[%zu]]", __func__, sockaddrlen(sa));
+  }
+}
+
+// Hash on the request URL.
+void
+HashTxnUrl(TSHttpTxn txn, TSRemapRequestInfo *, MD5_CTX * ctx)
+{
+  char * url;
+  int len;
+
+  url = TSHttpTxnEffectiveUrlStringGet(txn, &len);
+  if (url && len) {
+    MD5_Update(ctx, url, len);
+    TSDebug("balancer", "%s(%.*s)", __func__, len, url);
+  }
+
+  TSfree(url);
+}
+
+// Hash on the cache key. This is not typically set at remap time, unless by another plugin.
+void
+HashTxnKey(TSHttpTxn txn, TSRemapRequestInfo * rri , MD5_CTX * ctx)
+{
+  TSMLoc  url = TS_NULL_MLOC;
+  char *  str = NULL;
+  int     len;
+
+  if (TSUrlCreate(rri->requestBufp, &url) != TS_SUCCESS) {
+    goto done;
+  }
+
+  if (TSHttpTxnCacheLookupUrlGet(txn, rri->requestBufp, url) != TS_SUCCESS) {
+    TSDebug("balancer", "no cache key");
+    goto done;
+  }
+
+  str = TSUrlStringGet(rri->requestBufp, url, &len);
+  if (str && len) {
+    TSDebug("balancer", "%s(%.*s)", __func__, len, str);
+    MD5_Update(ctx, str, len);
+  }
+
+done:
+  if (url != TS_NULL_MLOC) {
+    TSHandleMLocRelease(rri->requestBufp, TS_NULL_MLOC, url);
+  }
+
+  TSfree(str);
+}
+
+struct HashBalancer : public BalancerInstance
+{
+  typedef std::map<md5_key, std::string>  hash_ring_type;
+  typedef std::vector<HashComponent>      hash_part_type;
+
+  enum { iterations = 10 };
+
+  HashBalancer() {
+    this->hash_parts.push_back(HashTxnUrl);
+  }
+
+  void push_target(const char * target) {
+    for (unsigned i = 0; i < iterations; ++i) {
+      this->hash_ring.insert(std::make_pair(md5_key(target, i), target));
+    }
+  }
+
+  const char * balance(TSHttpTxn txn, TSRemapRequestInfo * rri) {
+    md5_key key;
+    MD5_CTX ctx;
+    hash_ring_type::const_iterator loc;
+
+    // We'd better have some hash functions set by now ...
+    TSReleaseAssert(!hash_parts.empty());
+
+    MD5_Init(&ctx);
+
+    for (hash_part_type::const_iterator i = this->hash_parts.begin(); i != this->hash_parts.end(); ++i) {
+      (*i)(txn, rri, &ctx);
+    }
+
+    MD5_Final(key.key, &ctx);
+
+    // OK, now look up this hash in the hash ring. lower_bound() finds the first element that is not less than the
+    // target, so the element we find is the first key that is greater than our target. To visualize this in the
+    // hash ring, that means that each node owns the preceeding keyspace (ie. the node is at the end of each keyspace
+    // range). This means that when we wrap, the first node owns the wrapping portion of the keyspace.
+    loc = this->hash_ring.lower_bound(key);
+    if (loc == this->hash_ring.end()) {
+      loc = this->hash_ring.begin();
+    }
+
+    return loc->second.c_str();
+  }
+
+  hash_ring_type hash_ring;
+  hash_part_type hash_parts;
+};
+
+} // namespace
+
+BalancerInstance *
+MakeHashBalancer(const char * options)
+{
+  HashBalancer * hash = new HashBalancer();
+  char * opt;
+  char * tmp;
+
+  TSDebug("balancer", "making hash balancer with options '%s'", options);
+
+  if (options) {
+    hash->hash_parts.clear(); // clear the default hash type if we have options
+    options = tmp = strdup(options);
+    while ((opt = strsep(&tmp, ",")) != NULL) {
+      if (strcmp(opt, "key") == 0) {
+        hash->hash_parts.push_back(HashTxnKey);
+      } else if (strcmp(opt, "url") == 0) {
+        hash->hash_parts.push_back(HashTxnUrl);
+      } else if (strcmp(opt, "srcaddr") == 0) {
+        hash->hash_parts.push_back(HashTxnSrcaddr);
+      } else {
+        TSError("balancer: ignoring invalid hash field '%s'", opt);
+      }
+    }
+
+    free((void *)options);
+  }
+
+  return hash;
+}
+
diff --git a/plugins/experimental/balancer/roundrobin.cc b/plugins/experimental/balancer/roundrobin.cc
new file mode 100644
index 00000000..fa8900fe
--- /dev/null
+++ b/plugins/experimental/balancer/roundrobin.cc
@@ -0,0 +1,72 @@
+/** @file
+ *
+ *  A brief file description
+ *
+ *  @section license License
+ *
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "balancer.h"
+#include <stdlib.h>
+#include <string.h>
+#include <map>
+#include <string>
+#include <vector>
+
+namespace {
+
+struct RoundRobinBalancer : public BalancerInstance
+{
+  RoundRobinBalancer() : targets(), next(0) {
+  }
+
+  void push_target(const char * target) {
+    this->targets.push_back(target);
+  }
+
+  const char * balance(TSHttpTxn, TSRemapRequestInfo *) {
+    return this->targets[++next % this->targets.size()].c_str();
+  }
+
+  std::vector<std::string> targets;
+  unsigned next;
+};
+
+} // namespace
+
+BalancerInstance *
+MakeRoundRobinBalancer(const char * options)
+{
+  RoundRobinBalancer * hash = new RoundRobinBalancer();
+  char * opt;
+  char * tmp;
+
+  TSDebug("balancer", "making round robin balancer with options '%s'", options);
+
+  if (options) {
+    options = tmp = strdup(options);
+    while ((opt = strsep(&tmp, ",")) != NULL) {
+      TSError("balancer: ignoring invalid round robin field '%s'", opt);
+    }
+
+    free((void *)options);
+  }
+
+  return hash;
+}
+
diff --git a/plugins/experimental/buffer_upload/Makefile.am b/plugins/experimental/buffer_upload/Makefile.am
new file mode 100644
index 00000000..d21c09e9
--- /dev/null
+++ b/plugins/experimental/buffer_upload/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = buffer_upload.la
+buffer_upload_la_SOURCES = buffer_upload.cc
+buffer_upload_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/buffer_upload/Makefile.in b/plugins/experimental/buffer_upload/Makefile.in
new file mode 100644
index 00000000..ac5af903
--- /dev/null
+++ b/plugins/experimental/buffer_upload/Makefile.in
@@ -0,0 +1,935 @@
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+
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+
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+# with or without modifications, as long as this notice is preserved.
+
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+@SET_MAKE@
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+#  limitations under the License.
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+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
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+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
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+	      exit 1;; \
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+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/buffer_upload/Makefile
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+	@case '$?' in \
+	  *config.status*) \
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+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+	    list2="$$list2 $$p"; \
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+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
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+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
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+clean-pkglibLTLIBRARIES:
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+	@list='$(pkglib_LTLIBRARIES)'; \
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+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
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+	test -z "$$locs" || { \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/buffer_upload/README b/plugins/experimental/buffer_upload/README
new file mode 100644
index 00000000..d09b8b2c
--- /dev/null
+++ b/plugins/experimental/buffer_upload/README
@@ -0,0 +1,77 @@
+Version 0.3 (11/02/11)
+  - fixed some pointer comparisons in an attempt to prevent a crash where INKHandleStringRelease was called on a bad char*
+
+Version 0.2 (10/31/11)
+  - fixed lots of memory leaks
+
+Version 0.1 (04/20/10)
+  - initial version
+
+Upload proxy specs for phase I:
+
+1. Memory buffering (buffer the entire POST data in IOBuffer before connecting to OS) 
+  1.1. Memory buffer size is configured with "mem_buffer_size" in config file. Default and minimum value is 32K
+       You can increase it in the config file. If a request's size is larger than "mem_buffer_size" specifiied
+       in config file, then the upload proxy feature will be disabled for this particular request
+
+2. Disk buffering (buffer the entire POST data on disk before connecting to OS) 
+  2.1. Use disk async IO. This involved some changes in ATS core
+    . new APIs wrapping around ink_aio_read() and ink_aio_write()
+    . change to distinguish between api call's AIO and cache's AIO 
+    . guarantee api call's AIO only involves certain amount of threads
+    . the number of threads is configurable in plugin's config file (default is 4)
+
+  2.2. Directories and files generated on disk
+    . base directory: FOOBAR/var/buffer_upload_tmp/ (configurable in config file)
+    . number of subdirectories: 64 (configurable in config file)
+    . filename are randomly generated
+    . files will be removed when the entire data have been sent out to OS
+    . remove dangling files (left on disk due to transaction interruption or traffic server crash) at startup time
+
+  2.3. Default chunk size when reading from disk: 16K, configurable in config file
+
+3. Default buffering mode: disk aio buffering mode
+  3.1. to turn off disk buffering, add a "use_disk_buffer 0" line in config file
+
+4. Trigger POST buffering on certain URLs
+  4.1. certain URLs will be provided in a plain text file (one URL each line)
+  4.2. specify filename in config file by "url_list_file"
+  4.3. max length of each URL: 4096 (configurable in config file)
+  4.4. use exact match, don't support regex for now 
+
+5. URL conversion for Mail's specific URL format
+  5.1. for now check if the "host" part in the URL is same as the proxy server name, then will do this conversion
+  5.2. To turn on URL conversion feature, set "convert_url 1" in config file
+
+6. All request headers inlcuding cookies plus the entire POST data will be buffered (either in memory or on disk)
+
+7. Config file can be explicitly sepcified as a parameter in command line (in plugin.config file)
+
+
+a sample config file:
+
+use_disk_buffer         1
+convert_url             1
+chunk_size              1024
+url_list_file           /tmp/url_list.conf
+max_url_length          10000
+base_dir                /tmp/test1
+subdir_num              100
+thread_num              10
+mem_buffer_size         40000
+
+
+default config file:    FOOBAR/etc/upload.conf
+
+default config values:
+use_disk_buffer         1
+convert_url             0
+chunk_size              16384
+url_list_file           none
+max_url_length          4096
+base_dir                FOOBAR/var/buffer_upload_tmp
+subdir_num              64
+thread_num              4
+mem_buffer_size         32768
+
+
diff --git a/plugins/experimental/buffer_upload/buffer_upload.cc b/plugins/experimental/buffer_upload/buffer_upload.cc
new file mode 100644
index 00000000..2e7b9442
--- /dev/null
+++ b/plugins/experimental/buffer_upload/buffer_upload.cc
@@ -0,0 +1,1225 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*   buffer_upload.c - plugin for buffering POST data on proxy server
+ *   before connecting to origin server. It supports two types of buffering:
+ *   memory-only buffering and disk buffering
+ * 
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <limits.h>
+#include <ts/ts.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+/* #define DEBUG 1 */
+#define DEBUG_TAG "buffer_upload-dbg"
+
+/**************************************************
+   Log macros for error code return verification 
+**************************************************/
+#define PLUGIN_NAME "buffer_upload"
+//#define LOG_SET_FUNCTION_NAME(NAME) const char * FUNCTION_NAME = NAME
+#define LOG_ERROR(API_NAME) {						\
+    TSError("%s: %s %s %s File %s, line number %d", PLUGIN_NAME, API_NAME, "APIFAIL", \
+             __FUNCTION__, __FILE__, __LINE__);			\
+  }
+#define LOG_ERROR_AND_RETURN(API_NAME) {	\
+    LOG_ERROR(API_NAME);			\
+    return TS_ERROR;				\
+  }
+
+#define VALID_PTR(X) (NULL != X)
+#define NOT_VALID_PTR(X) (NULL == X)
+
+struct upload_config_t
+{
+  bool use_disk_buffer;
+  bool convert_url;
+  int64_t mem_buffer_size;
+  int64_t chunk_size;
+  char *url_list_file;
+  int64_t max_url_length;
+  int url_num;
+  char **urls;
+  char *base_dir;
+  int subdir_num;
+  int thread_num;
+};
+
+typedef struct upload_config_t upload_config;
+
+enum config_type
+{
+  TYPE_INT,
+  TYPE_UINT,
+  TYPE_LONG,
+  TYPE_ULONG,
+  TYPE_STRING,
+  TYPE_BOOL,
+};
+
+struct config_val_ul
+{
+  const char *str;
+  enum config_type type;
+  void *val;
+};
+
+static int upload_vc_count;
+
+static upload_config *uconfig = NULL;
+
+struct pvc_state_t
+{
+  TSVConn p_vc;
+  TSVIO p_read_vio;
+  TSVIO p_write_vio;
+
+  TSVConn net_vc;
+  TSVIO n_read_vio;
+  TSVIO n_write_vio;
+
+  TSIOBuffer req_buffer;
+  TSIOBufferReader req_reader;
+
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  TSIOBufferReader req_hdr_reader;
+  TSIOBuffer req_hdr_buffer;
+
+  TSMutex disk_io_mutex;
+
+  int fd;
+
+  int64_t req_finished;
+  int64_t resp_finished;
+  int64_t nbytes_to_consume;
+  int64_t req_size;
+  int64_t size_written;
+  int64_t size_read;
+
+  int64_t write_offset;
+  int64_t read_offset;
+
+  char *chunk_buffer;           // buffer to store the data read from disk
+  int is_reading_from_disk;
+
+  TSHttpTxn http_txnp;
+};
+
+typedef struct pvc_state_t pvc_state;
+
+// print IOBuffer for test purpose
+/*
+static void
+print_buffer(TSIOBufferReader reader)
+{
+  TSIOBufferBlock block;
+  int64_t size;
+  const char *ptr;
+
+  block = TSIOBufferReaderStart(reader);
+  while (block != NULL) {
+    ptr = TSIOBufferBlockReadStart(block, reader, &size);
+    TSDebug(DEBUG_TAG, "buffer size: %d", size);
+    TSDebug(DEBUG_TAG, "buffer: %.*s", size, ptr);
+    block = TSIOBufferBlockNext(block);
+  }
+}
+*/
+
+static int
+write_buffer_to_disk(TSIOBufferReader reader, pvc_state * my_state, TSCont contp)
+{
+  TSIOBufferBlock block;
+  int64_t size;
+  const char *ptr;
+  char *pBuf;
+
+  //LOG_SET_FUNCTION_NAME("write_buffer_to_disk");
+  block = TSIOBufferReaderStart(reader);
+  while (block != NULL) {
+    ptr = TSIOBufferBlockReadStart(block, reader, &size);
+    pBuf = (char *) TSmalloc(sizeof(char) * size);
+    if (pBuf == NULL) {
+      LOG_ERROR_AND_RETURN("TSAIOWrite");
+    }
+    memcpy(pBuf, ptr, size);
+    if (TSAIOWrite(my_state->fd, my_state->write_offset, pBuf, size, contp) == TS_ERROR) {
+      LOG_ERROR_AND_RETURN("TSAIOWrite");
+    }
+    my_state->write_offset += size;
+    block = TSIOBufferBlockNext(block);
+  }
+  return TS_SUCCESS;
+}
+
+static int
+call_httpconnect(TSCont contp, pvc_state * my_state)
+{
+  //LOG_SET_FUNCTION_NAME("call_httpconnect");
+
+  //unsigned int client_ip = TSHttpTxnClientIPGet(my_state->http_txnp);
+  sockaddr const *client_ip = TSHttpTxnClientAddrGet(my_state->http_txnp);
+
+  TSDebug(DEBUG_TAG, "call TSHttpConnect() ...");
+  if ((my_state->net_vc = TSHttpConnect(client_ip)) == NULL) {
+    LOG_ERROR_AND_RETURN("TSHttpConnect");
+  }
+  my_state->p_write_vio = TSVConnWrite(my_state->p_vc, contp, my_state->resp_reader, INT_MAX);
+  if (my_state->p_write_vio == NULL) {
+    LOG_ERROR_AND_RETURN("TSVConnWrite");
+  }
+  my_state->n_read_vio = TSVConnRead(my_state->net_vc, contp, my_state->resp_buffer, INT_MAX);
+  if (my_state->n_read_vio == NULL) {
+    LOG_ERROR_AND_RETURN("TSVConnRead");
+  }
+  my_state->n_write_vio = TSVConnWrite(my_state->net_vc, contp, my_state->req_reader, INT_MAX);
+  if (my_state->n_write_vio == NULL) {
+    LOG_ERROR_AND_RETURN("TSVConnWrite");
+  }
+  return TS_SUCCESS;
+}
+
+static void
+pvc_cleanup(TSCont contp, pvc_state * my_state)
+{
+  if (my_state->req_buffer) {
+    TSIOBufferReaderFree(my_state->req_reader);
+    my_state->req_reader = NULL;
+    TSIOBufferDestroy(my_state->req_buffer);
+    my_state->req_buffer = NULL;
+  }
+
+  if (my_state->resp_buffer) {
+    TSIOBufferReaderFree(my_state->resp_reader);
+    my_state->resp_reader = NULL;
+    TSIOBufferDestroy(my_state->resp_buffer);
+    my_state->resp_buffer = NULL;
+  }
+
+  if (my_state->req_hdr_buffer) {
+    TSIOBufferReaderFree(my_state->req_hdr_reader);
+    my_state->req_hdr_reader = NULL;
+    TSIOBufferDestroy(my_state->req_hdr_buffer);
+    my_state->req_hdr_buffer = NULL;
+  }
+
+  if (uconfig->use_disk_buffer && my_state->fd != -1) {
+    close(my_state->fd);
+    my_state->fd = -1;
+  }
+
+  if (my_state->chunk_buffer) {
+    TSfree(my_state->chunk_buffer);
+    my_state->chunk_buffer = NULL;
+  }
+
+  TSfree(my_state);
+  TSContDestroy(contp);
+
+  /* Decrement upload_vc_count */
+  TSStatIntDecrement(upload_vc_count, 1);
+}
+
+static void
+pvc_check_done(TSCont contp, pvc_state * my_state)
+{
+  if (my_state->req_finished && my_state->resp_finished) {
+    TSVConnClose(my_state->p_vc);
+    TSVConnClose(my_state->net_vc);
+    pvc_cleanup(contp, my_state);
+  }
+}
+
+static void
+pvc_process_accept(TSCont contp, int event, void *edata, pvc_state * my_state)
+{
+  TSDebug(DEBUG_TAG, "plugin called: pvc_process_accept with event %d", event);
+
+  if (event == TS_EVENT_NET_ACCEPT) {
+    my_state->p_vc = (TSVConn) edata;
+
+    my_state->req_buffer = TSIOBufferCreate();
+    my_state->req_reader = TSIOBufferReaderAlloc(my_state->req_buffer);
+    // set the maximum memory buffer size for request (both request header and post data), default is 32K
+    // only apply to memory buffer mode
+    if (uconfig->use_disk_buffer == 0) { 
+      TSIOBufferWaterMarkSet(my_state->req_buffer, uconfig->mem_buffer_size);
+    }
+    my_state->resp_buffer = TSIOBufferCreate();
+    my_state->resp_reader = TSIOBufferReaderAlloc(my_state->resp_buffer);
+
+    if ((my_state->req_buffer == NULL) || (my_state->req_reader == NULL)
+        || (my_state->resp_buffer == NULL) || (my_state->resp_reader == NULL)) {
+      LOG_ERROR("TSIOBufferCreate || TSIOBufferReaderAlloc");
+      TSVConnClose(my_state->p_vc);
+      pvc_cleanup(contp, my_state);
+    } else {
+      my_state->p_read_vio = TSVConnRead(my_state->p_vc, contp, my_state->req_buffer, INT_MAX);
+      if (my_state->p_read_vio == NULL) {
+        LOG_ERROR("TSVConnRead");
+      }
+    }
+  } else if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+    pvc_cleanup(contp, my_state);
+  } else {
+    TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+static void
+pvc_process_p_read(TSCont contp, TSEvent event, pvc_state * my_state)
+{
+  int size, consume_size;
+
+  //TSDebug(DEBUG_TAG, "plugin called: pvc_process_p_read with event %d", event);
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+    // Here we need to replace the server request header with client request header
+    // print_buffer(my_state->req_reader);
+    if (my_state->nbytes_to_consume == -1) {    // -1 is the initial value
+      my_state->nbytes_to_consume = TSHttpTxnServerReqHdrBytesGet(my_state->http_txnp);
+    }
+    size = TSIOBufferReaderAvail(my_state->req_reader);
+    if (my_state->nbytes_to_consume > 0) {
+      consume_size = (my_state->nbytes_to_consume < size) ? my_state->nbytes_to_consume : size;
+      TSIOBufferReaderConsume(my_state->req_reader, consume_size);
+      my_state->nbytes_to_consume -= consume_size;
+      size -= consume_size;
+    }
+    if (my_state->nbytes_to_consume == 0) {     // the entire server request header has been consumed
+      if (uconfig->use_disk_buffer) {
+        TSMutexLock(my_state->disk_io_mutex);
+        if (write_buffer_to_disk(my_state->req_hdr_reader, my_state, contp) == TS_ERROR) {
+          LOG_ERROR("write_buffer_to_disk");
+          uconfig->use_disk_buffer = 0;
+          close(my_state->fd);
+          my_state->fd = -1;
+        }
+        TSMutexUnlock(my_state->disk_io_mutex);
+      }
+      if (size > 0) {
+        if (uconfig->use_disk_buffer) {
+          TSMutexLock(my_state->disk_io_mutex);
+          if (write_buffer_to_disk(my_state->req_reader, my_state, contp) == TS_ERROR) {
+            TSDebug(DEBUG_TAG, "Error in writing to disk");
+          }
+          TSMutexUnlock(my_state->disk_io_mutex);
+        } else {
+          // never get chance to test this line, didn't get a test case to fall into this situation
+          TSIOBufferCopy(my_state->req_hdr_buffer, my_state->req_reader, size, 0);
+        }
+        TSIOBufferReaderConsume(my_state->req_reader, size);
+      }
+      if (!uconfig->use_disk_buffer) {
+        size = TSIOBufferReaderAvail(my_state->req_hdr_reader);
+        TSIOBufferCopy(my_state->req_buffer, my_state->req_hdr_reader, size, 0);
+      }
+      my_state->nbytes_to_consume = -2; // -2 indicates the header replacement is done
+    }
+    if (my_state->nbytes_to_consume == -2) {
+      size = TSIOBufferReaderAvail(my_state->req_reader);
+      if (uconfig->use_disk_buffer) {
+        if (size > 0) {
+          TSMutexLock(my_state->disk_io_mutex);
+          if (write_buffer_to_disk(my_state->req_reader, my_state, contp) == TS_ERROR) {
+            TSDebug(DEBUG_TAG, "Error in writing to disk");
+          }
+          TSIOBufferReaderConsume(my_state->req_reader, size);
+          TSMutexUnlock(my_state->disk_io_mutex);
+        }
+      } else {
+        // if the entire post data had been read in memory, then connect to origin server.
+        if (size >= my_state->req_size) {
+          if (call_httpconnect(contp, my_state) == TS_ERROR) {
+            LOG_ERROR("call_httpconnect");
+          }
+        }
+      }
+    }
+
+    break;
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+  case TS_EVENT_ERROR:
+    {
+
+      /* We're finished reading from the plugin vc */
+      int ndone;
+
+      ndone = TSVIONDoneGet(my_state->p_read_vio);
+      if (ndone == TS_ERROR) {
+        LOG_ERROR("TSVIODoneGet");
+      }
+
+      my_state->p_read_vio = NULL;
+
+      TSVConnShutdown(my_state->p_vc, 1, 0);
+      // if client aborted the uploading in middle, need to cleanup the file from disk
+      if (event == TS_EVENT_VCONN_EOS && uconfig->use_disk_buffer && my_state->fd != -1) {
+        close(my_state->fd);
+        my_state->fd = -1;
+      }
+
+      break;
+    }
+  default:
+    TSReleaseAssert(!"Unexpected Event");
+    break;
+  }
+}
+
+static void
+pvc_process_n_write(TSCont contp, TSEvent event, pvc_state * my_state)
+{
+  int size;
+
+  //TSDebug(DEBUG_TAG, "plugin called: pvc_process_n_write with event %d", event);
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    // print_buffer(my_state->req_reader);
+    if (uconfig->use_disk_buffer) {
+      TSMutexLock(my_state->disk_io_mutex);
+      size =
+        (my_state->req_size - my_state->read_offset) >
+        uconfig->chunk_size ? uconfig->chunk_size : (my_state->req_size - my_state->read_offset);
+      if (size > 0 && !my_state->is_reading_from_disk) {
+        my_state->is_reading_from_disk = 1;
+        TSAIORead(my_state->fd, my_state->read_offset, my_state->chunk_buffer, size, contp);
+        my_state->read_offset += size;
+      }
+      TSMutexUnlock(my_state->disk_io_mutex);
+    }
+    break;
+  case TS_EVENT_ERROR:
+    if (my_state->p_read_vio) {
+      TSVConnShutdown(my_state->p_vc, 1, 0);
+      my_state->p_read_vio = NULL;
+    }
+    /* FALL THROUGH */
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    /* We should have already shutdown read pvc side */
+    TSAssert(my_state->p_read_vio == NULL);
+    TSVConnShutdown(my_state->net_vc, 0, 1);
+    my_state->req_finished = 1;
+
+    if (uconfig->use_disk_buffer && my_state->fd != -1) {
+      close(my_state->fd);
+      my_state->fd = -1;
+    }
+    pvc_check_done(contp, my_state);
+    break;
+
+  default:
+    TSReleaseAssert(!"Unexpected Event");
+    break;
+  }
+}
+
+static void
+pvc_process_n_read(TSCont contp, TSEvent event, pvc_state * my_state)
+{
+  //TSDebug(DEBUG_TAG, "plugin called: pvc_process_n_read with event %d", event);
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+    // print_buffer(my_state->resp_reader);
+    TSVIOReenable(my_state->p_write_vio);
+    break;
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+  case TS_EVENT_ERROR:
+    {
+      /* We're finished reading from the plugin vc */
+      int ndone;
+      int todo;
+
+      ndone = TSVIONDoneGet(my_state->n_read_vio);
+      if (ndone == TS_ERROR) {
+        LOG_ERROR("TSVIODoneGet");
+      }
+
+      my_state->n_read_vio = NULL;
+      TSVIONBytesSet(my_state->p_write_vio, ndone);
+      TSVConnShutdown(my_state->net_vc, 1, 0);
+
+      todo = TSVIONTodoGet(my_state->p_write_vio);
+      if (todo == TS_ERROR) {
+        LOG_ERROR("TSVIOTodoGet");
+        /* Error so set it to 0 to cleanup */
+        todo = 0;
+      }
+
+      if (todo == 0) {
+        my_state->resp_finished = 1;
+        TSVConnShutdown(my_state->p_vc, 0, 1);
+        pvc_check_done(contp, my_state);
+      } else {
+        TSVIOReenable(my_state->p_write_vio);
+      }
+
+      break;
+    }
+  default:
+    TSReleaseAssert(!"Unexpected Event");
+    break;
+  }
+}
+
+static void
+pvc_process_p_write(TSCont contp, TSEvent event, pvc_state * my_state)
+{
+  //TSDebug(DEBUG_TAG, "plugin called: pvc_process_p_write with event %d", event);
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    if (my_state->n_read_vio) {
+      TSVIOReenable(my_state->n_read_vio);
+    }
+    break;
+  case TS_EVENT_ERROR:
+    if (my_state->n_read_vio) {
+      TSVConnShutdown(my_state->net_vc, 1, 0);
+      my_state->n_read_vio = NULL;
+    }
+    /* FALL THROUGH */
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    /* We should have already shutdown read net side */
+    TSAssert(my_state->n_read_vio == NULL);
+    TSVConnShutdown(my_state->p_vc, 0, 1);
+    my_state->resp_finished = 1;
+    pvc_check_done(contp, my_state);
+    break;
+  default:
+    TSReleaseAssert(!"Unexpected Event");
+    break;
+  }
+}
+
+static int
+pvc_plugin(TSCont contp, TSEvent event, void *edata)
+{
+  pvc_state *my_state = static_cast<pvc_state*>(TSContDataGet(contp));
+  TSAIOCallback callback = static_cast<TSAIOCallback>(edata);
+
+  if (my_state == NULL) {
+    TSReleaseAssert(!"Unexpected: my_state is NULL");
+    return 0;
+  }
+
+  if (event == TS_EVENT_NET_ACCEPT || event == TS_EVENT_NET_ACCEPT_FAILED) {
+    pvc_process_accept(contp, event, edata, my_state);
+  } else if (edata == my_state->p_read_vio) {
+    pvc_process_p_read(contp, event, my_state);
+  } else if (edata == my_state->p_write_vio) {
+    pvc_process_p_write(contp, event, my_state);
+  } else if (edata == my_state->n_read_vio) {
+    pvc_process_n_read(contp, event, my_state);
+  } else if (edata == my_state->n_write_vio) {
+    pvc_process_n_write(contp, event, my_state);
+  } else if (event == TS_AIO_EVENT_DONE && uconfig->use_disk_buffer) {
+    TSMutexLock(my_state->disk_io_mutex);
+    int size = TSAIONBytesGet(callback);
+    char *buf = TSAIOBufGet(callback);
+    if (buf != my_state->chunk_buffer) {
+      // this TS_AIO_EVENT_DONE event is from TSAIOWrite()
+      TSDebug(DEBUG_TAG, "aio write size: %d", size);
+      my_state->size_written += size;
+      if (buf != NULL) {
+        TSfree(buf);
+      }
+      if (my_state->size_written >= my_state->req_size) {
+        // the entire post data had been written to disk  already, make the connection now
+        if (call_httpconnect(contp, my_state) == TS_ERROR) {
+          TSDebug(DEBUG_TAG, "call_httpconnect");
+        }
+      }
+    } else {
+      // this TS_AIO_EVENT_DONE event is from TSAIORead()
+      TSDebug(DEBUG_TAG, "aio read size: %d", size);
+      TSIOBufferWrite(my_state->req_buffer, my_state->chunk_buffer, size);
+      my_state->size_read += size;
+      if (my_state->size_read >= my_state->req_size && my_state->fd != -1) {
+        close(my_state->fd);
+        my_state->fd = -1;
+      }
+      my_state->is_reading_from_disk = 0;
+      TSVIOReenable(my_state->n_write_vio);
+    }
+    TSMutexUnlock(my_state->disk_io_mutex);
+
+  } else {
+    TSDebug(DEBUG_TAG, "event: %d", event);
+    TSReleaseAssert(!"Unexpected Event");
+  }
+
+  return 0;
+}
+
+/*
+ *  Convert specific URL format
+ */
+static void
+convert_url_func(TSMBuffer req_bufp, TSMLoc req_loc)
+{
+  TSMLoc url_loc;
+  TSMLoc field_loc;
+  const char *str;
+  int len, port;
+
+  if (TSHttpHdrUrlGet(req_bufp, req_loc, &url_loc) == TS_ERROR)
+    return;
+
+  char *hostname = (char *) getenv("HOSTNAME");
+
+  // in reverse proxy mode, TSUrlHostGet returns NULL here
+  str = TSUrlHostGet(req_bufp, url_loc, &len);
+
+  port = TSUrlPortGet(req_bufp, url_loc);
+
+  // for now we assume the <upload proxy service domain> in the format is the hostname
+  // but this needs to be verified later
+  if ((NOT_VALID_PTR(str) || !strncmp(str, hostname, len)) && strlen(hostname) == (size_t)len) {
+    const char *slash;
+    const char *colon;
+    //if (VALID_PTR(str))
+    //  TSHandleStringRelease(req_bufp, url_loc, str);
+    str = TSUrlPathGet(req_bufp, url_loc, &len);
+    slash = strstr(str, "/");
+    if (slash == NULL) {
+      //if (VALID_PTR(str))
+      //  TSHandleStringRelease(req_bufp, url_loc, str);
+      TSHandleMLocRelease(req_bufp, req_loc, url_loc);
+      return;
+    }
+    char pathTmp[len + 1];
+    memset(pathTmp, 0, sizeof pathTmp);
+    memcpy(pathTmp, str, len);
+    TSDebug(DEBUG_TAG, "convert_url_func working on path: %s", pathTmp);
+    colon = strstr(str, ":");
+    if (colon != NULL && colon < slash) {
+      char *port_str = (char *) TSmalloc(sizeof(char) * (slash - colon));
+      strncpy(port_str, colon + 1, slash - colon - 1);
+      port_str[slash - colon - 1] = '\0';
+      TSUrlPortSet(req_bufp, url_loc, atoi(port_str));
+      TSfree(port_str);
+    } else {
+      if (port != 80) {
+        TSUrlPortSet(req_bufp, url_loc, 80);
+      }
+      colon = slash;
+    }
+
+    TSUrlHostSet(req_bufp, url_loc, str, colon - str);
+    TSUrlPathSet(req_bufp, url_loc, slash + 1, len - (slash - str) - 1);
+    if ((field_loc = TSMimeHdrFieldFind(req_bufp, req_loc, TS_MIME_FIELD_HOST, TS_MIME_LEN_HOST)) != TS_NULL_MLOC &&
+        field_loc != NULL) {
+      TSMimeHdrFieldValueStringSet(req_bufp, req_loc, field_loc, 0, str, slash - str);
+      TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+    }
+  } else {
+    //if (VALID_PTR(str))
+    //  TSHandleStringRelease(req_bufp, url_loc, str);
+  }
+
+  TSHandleMLocRelease(req_bufp, req_loc, url_loc);
+}
+
+static int
+attach_pvc_plugin(TSCont /* contp ATS_UNUSED */, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  TSMutex mutex;
+  TSCont new_cont;
+  pvc_state *my_state;
+  TSMBuffer req_bufp;
+  TSMLoc req_loc;
+  TSMLoc field_loc;
+  TSMLoc url_loc;
+  char *url;
+  int url_len;
+  int content_length = 0;
+  const char *method;
+  int method_len;
+  const char *host_str;
+  int host_str_len;
+  const char *host_hdr_str_val;
+  int host_hdr_str_val_len;
+
+  TSDebug(DEBUG_TAG, "inside attach_pvc_plugin");
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_PRE_REMAP:
+
+    // if the request is issued by the TSHttpConnect() in this plugin, don't get in the endless cycle.
+    if (TSHttpIsInternalRequest(txnp) == TS_SUCCESS) {
+      TSDebug(DEBUG_TAG, "internal request");
+      break;
+    }
+
+    if (TSHttpTxnClientReqGet(txnp, &req_bufp, &req_loc) == TS_ERROR) {
+      LOG_ERROR("Error while retrieving client request header");
+      break;
+    }
+
+    method = TSHttpHdrMethodGet(req_bufp, req_loc, &method_len);
+    TSDebug(DEBUG_TAG, "inside handler");
+
+    if (NOT_VALID_PTR(method) || method_len == 0) {
+      TSDebug(DEBUG_TAG, "invalid method");
+
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      break;
+    }
+    // only deal with POST method
+    TSDebug(DEBUG_TAG, "method: %s", method);
+
+    if (static_cast<size_t>(method_len) != strlen(TS_HTTP_METHOD_POST) || strncasecmp(method, TS_HTTP_METHOD_POST, method_len) != 0) {
+      TSDebug(DEBUG_TAG, "Not POST method");
+
+      //TSHandleStringRelease(req_bufp, req_loc, method);
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      break;
+    }
+
+    //TSHandleStringRelease(req_bufp, req_loc, method);
+
+    TSDebug(DEBUG_TAG, "Got POST req");
+    if (uconfig->url_list_file != NULL) {
+      TSDebug(DEBUG_TAG, "url_list_file != NULL");
+      // check against URL list
+      if (TSHttpHdrUrlGet(req_bufp, req_loc, &url_loc) == TS_ERROR) {
+        LOG_ERROR("Couldn't get the url");
+        TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+        break;
+      }
+      host_str = TSUrlHostGet(req_bufp, url_loc, &host_str_len);
+      if (NOT_VALID_PTR(host_str) || host_str_len <= 0) {
+        // reverse proxy mode
+        field_loc = TSMimeHdrFieldFind(req_bufp, req_loc, TS_MIME_FIELD_HOST, -1);
+        if (NOT_VALID_PTR(field_loc)) {
+          //if (VALID_PTR(str))
+          //  TSHandleStringRelease(req_bufp, url_loc, str);
+          LOG_ERROR("Host field not found.");
+          TSHandleMLocRelease(req_bufp, req_loc, url_loc);
+          TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+          break;
+        }
+        host_hdr_str_val = TSMimeHdrFieldValueStringGet(req_bufp, req_loc, field_loc, -1, &host_hdr_str_val_len);
+        if (NOT_VALID_PTR(host_hdr_str_val) || host_hdr_str_val_len <= 0) {
+          //if (VALID_PTR(str))
+          //  TSHandleStringRelease(req_bufp, field_loc, str);
+          TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+          TSHandleMLocRelease(req_bufp, req_loc, url_loc);
+          TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+          break;
+        }
+
+        char replacement_host_str[host_hdr_str_val_len + 1];
+        memset(replacement_host_str, 0, sizeof replacement_host_str);
+        memcpy(replacement_host_str, host_hdr_str_val, host_hdr_str_val_len);
+        TSDebug(DEBUG_TAG, "Adding host to request url: %s", replacement_host_str);
+
+        TSUrlHostSet(req_bufp, url_loc, host_hdr_str_val, host_hdr_str_val_len);
+
+        //TSHandleStringRelease(req_bufp, field_loc, str);
+        TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+      } else {
+        //TSHandleStringRelease(req_bufp, url_loc, str);
+      }
+
+      int i = uconfig->url_num;
+      url = TSUrlStringGet(req_bufp, url_loc, &url_len);
+      if (VALID_PTR(url)) {
+        char urlStr[url_len + 1];
+        memset(urlStr, 0, sizeof urlStr);
+        memcpy(urlStr, url, url_len);
+        TSDebug(DEBUG_TAG, "Request url: %s", urlStr);
+
+        for (i = 0; i < uconfig->url_num; i++) {
+          TSDebug(DEBUG_TAG, "uconfig url: %s", uconfig->urls[i]);
+          if (strncmp(url, uconfig->urls[i], url_len) == 0) {
+            break;
+          }
+        }
+
+        TSfree(url);
+      }
+      TSHandleMLocRelease(req_bufp, req_loc, url_loc);
+
+      if (uconfig->url_num > 0 && i == uconfig->url_num) {
+        TSDebug(DEBUG_TAG, "breaking: url_num > 0 and i== url_num, URL match not found");
+        TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+        break;
+      }
+    }
+
+    if (uconfig->convert_url) {
+      TSDebug(DEBUG_TAG, "doing convert url");
+      convert_url_func(req_bufp, req_loc);
+    }
+
+    field_loc = TSMimeHdrFieldFind(req_bufp, req_loc, TS_MIME_FIELD_CONTENT_LENGTH, TS_MIME_LEN_CONTENT_LENGTH);
+    if(field_loc == NULL) {
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      LOG_ERROR("TSMimeHdrFieldRetrieve");
+      break;
+    }
+
+    content_length = TSMimeHdrFieldValueIntGet(req_bufp, req_loc, field_loc, 0);
+        /*{
+      TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      LOG_ERROR("TSMimeFieldValueGet");
+    } else
+        */
+    //  content_length = value;
+
+    mutex = TSMutexCreate();
+    if (NOT_VALID_PTR(mutex)) {
+      TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      LOG_ERROR("TSMutexCreate");
+      break;
+    }
+
+    new_cont = TSContCreate(pvc_plugin, mutex);
+    if (NOT_VALID_PTR(new_cont)) {
+      TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      LOG_ERROR("TSContCreate");
+      break;
+    }
+
+    my_state = (pvc_state *) TSmalloc(sizeof(pvc_state));
+    my_state->req_size = content_length;
+    my_state->p_vc = NULL;
+    my_state->p_read_vio = NULL;
+    my_state->p_write_vio = NULL;
+
+    my_state->net_vc = NULL;
+    my_state->n_read_vio = NULL;
+    my_state->n_write_vio = NULL;
+
+    my_state->req_buffer = NULL;
+    my_state->req_reader = NULL;
+    my_state->resp_buffer = NULL;
+    my_state->resp_reader = NULL;
+    my_state->fd = -1;
+    my_state->disk_io_mutex = NULL;
+
+    my_state->http_txnp = txnp; // not in use now, may need in the future
+
+    my_state->req_finished = 0;
+    my_state->resp_finished = 0;
+    my_state->nbytes_to_consume = -1;   // the length of server request header to remove from incoming stream (will replace with client request header)
+
+    my_state->size_written = 0;
+    my_state->size_read = 0;
+    my_state->write_offset = 0;
+    my_state->read_offset = 0;
+    my_state->is_reading_from_disk = 0;
+
+    my_state->chunk_buffer = (char *) TSmalloc(sizeof(char) * uconfig->chunk_size);
+
+    my_state->disk_io_mutex = TSMutexCreate();
+    if (NOT_VALID_PTR(my_state->disk_io_mutex)) {
+      LOG_ERROR("TSMutexCreate");
+    }
+
+    my_state->req_hdr_buffer = TSIOBufferCreate();
+    my_state->req_hdr_reader = TSIOBufferReaderAlloc(my_state->req_hdr_buffer);
+    TSHttpHdrPrint(req_bufp, req_loc, my_state->req_hdr_buffer);
+    // print_buffer(my_state->req_hdr_reader);
+
+    my_state->req_size += TSIOBufferReaderAvail(my_state->req_hdr_reader);
+
+    /* Increment upload_vc_count */
+    TSStatIntIncrement(upload_vc_count, 1);
+
+    if (!uconfig->use_disk_buffer && my_state->req_size > uconfig->mem_buffer_size) {
+      TSDebug(DEBUG_TAG,
+              "The request size %" PRId64 " is larger than memory buffer size %" PRId64 ", bypass upload proxy feature for this request.",
+              my_state->req_size, uconfig->mem_buffer_size);
+
+      pvc_cleanup(new_cont, my_state);
+      TSHandleMLocRelease(req_bufp, req_loc, field_loc);
+      TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_loc);
+      break;
+    }
+
+    TSContDataSet(new_cont, my_state);
+
+    if (uconfig->use_disk_buffer) {
+      char path[500];
+      int index = (int) (random() % uconfig->subdir_num);
+
+      sprintf(path, "%s/%02X/tmp-XXXXXX", uconfig->base_dir, index);
+
+      my_state->fd = mkstemp(path);
+      unlink(path);
+      if (my_state->fd < 0) {
+        LOG_ERROR("open");
+        uconfig->use_disk_buffer = 0;
+        my_state->fd = -1;
+      } else {
+        TSDebug(DEBUG_TAG, "temp filename: %s", path);
+      }
+    }
+
+
+    TSDebug(DEBUG_TAG, "calling TSHttpTxnIntercept() ...");
+    TSHttpTxnIntercept(new_cont, txnp);
+
+    break;
+  default:
+    TSReleaseAssert(!"Unexpected Event");
+    break;
+  }
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return 0;
+}
+
+static int
+create_directory()
+{
+  char str[10];
+  char cwd[4096];
+  int i;
+  DIR *dir;
+  struct dirent *d;
+
+  if (getcwd(cwd, 4096) == NULL) {
+    TSError("getcwd fails");
+    return 0;
+  }
+
+  if (chdir(uconfig->base_dir) < 0) {
+    if (mkdir(uconfig->base_dir, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
+      TSError("Unable to enter or create %s", uconfig->base_dir);
+      goto error_out;
+    }
+    if (chdir(uconfig->base_dir) < 0) {
+      TSError("Unable enter %s", uconfig->base_dir);
+      goto error_out;
+    }
+  }
+  for (i = 0; i < uconfig->subdir_num; i++) {
+    snprintf(str, 10, "%02X", i);
+    if (chdir(str) < 0) {
+      if (mkdir(str, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
+        TSError("Unable to enter or create %s/%s", uconfig->base_dir, str);
+        goto error_out;
+      }
+      if (chdir(str) < 0) {
+        TSError("Unable to enter %s/%s", uconfig->base_dir, str);
+        goto error_out;
+      }
+    }
+    dir = opendir(".");
+    while ((d = readdir(dir))) {
+      remove(d->d_name);
+    }
+    if (chdir("..") == -1) return 0;
+  }
+
+  if (chdir(cwd) == -1) return 0;
+  return 1;
+
+error_out:
+  /*  Debian's compiler chain complains about not using the return
+      value of chdir() and cannot be silenced
+      The reason is the combination of -D_FORTIFY_SOURCE=2 -O
+   */
+  if(chdir(cwd) == -1) return 0;
+  return 0;
+
+}
+
+static void
+load_urls(char *filename)
+{
+  TSFile file;
+  char *url_buf;
+  char *eol;
+  int i;
+
+  url_buf = (char *) TSmalloc(sizeof(char) * (uconfig->max_url_length + 1));
+  url_buf[uconfig->max_url_length] = '\0';
+
+  for (i = 0; i < 2; i++) {
+    if ((file = TSfopen(filename, "r")) == NULL) {
+      TSfree(url_buf);
+      TSError("Fail to open %s", filename);
+      return;
+    }
+    if (i == 0) {               //first round
+      uconfig->url_num = 0;
+      while (TSfgets(file, url_buf, uconfig->max_url_length) != NULL) {
+        uconfig->url_num++;
+      }
+      uconfig->urls = (char **) TSmalloc(sizeof(char *) * uconfig->url_num);
+    } else {                    //second round
+      int idx = 0;
+      while (TSfgets(file, url_buf, uconfig->max_url_length) != NULL && idx < uconfig->url_num) {
+        if ((eol = strstr(url_buf, "\r\n")) != NULL) {
+          /* To handle newlines on Windows */
+          *eol = '\0';
+        } else if ((eol = strchr(url_buf, '\n')) != NULL) {
+          *eol = '\0';
+        } else {
+          /* Not a valid line, skip it */
+          continue;
+        }
+        uconfig->urls[idx] = TSstrdup(url_buf);
+        idx++;
+      }
+      uconfig->url_num = idx;
+    }
+    TSfclose(file);
+  }
+  TSfree(url_buf);
+}
+
+
+void
+parse_config_line(char *line, const struct config_val_ul *cv)
+{
+  const char *delim = "\t\r\n ";
+  char *save = NULL;
+  char *tok = strtok_r(line, delim, &save);
+
+  if (tok != NULL) {
+    while (cv->str) {
+      if (!strcmp(tok, cv->str)) {
+        tok = strtok_r(NULL, delim, &save);
+        if (tok) {
+          switch (cv->type) {
+          case TYPE_INT:{
+              char *end = tok;
+              int iv = strtol(tok, &end, 10);
+              if (end && *end == '\0') {
+                *((int *) cv->val) = iv;
+                TSError("Parsed int config value %s : %d", cv->str, iv);
+                TSDebug(DEBUG_TAG, "Parsed int config value %s : %d", cv->str, iv);
+              }
+              break;
+            }
+          case TYPE_UINT:{
+              char *end = tok;
+              unsigned int uiv = strtoul(tok, &end, 10);
+              if (end && *end == '\0') {
+                *((unsigned int *) cv->val) = uiv;
+                TSError("Parsed uint config value %s : %u", cv->str, uiv);
+                TSDebug(DEBUG_TAG, "Parsed uint config value %s : %u", cv->str, uiv);
+              }
+              break;
+            }
+          case TYPE_LONG:{
+              char *end = tok;
+              long lv = strtol(tok, &end, 10);
+              if (end && *end == '\0') {
+                *((long *) cv->val) = lv;
+                TSError("Parsed long config value %s : %ld", cv->str, lv);
+                TSDebug(DEBUG_TAG, "Parsed long config value %s : %ld", cv->str, lv);
+              }
+              break;
+            }
+          case TYPE_ULONG:{
+              char *end = tok;
+              unsigned long ulv = strtoul(tok, &end, 10);
+              if (end && *end == '\0') {
+                *((unsigned long *) cv->val) = ulv;
+                TSError("Parsed ulong config value %s : %lu", cv->str, ulv);
+                TSDebug(DEBUG_TAG, "Parsed ulong config value %s : %lu", cv->str, ulv);
+              }
+              break;
+            }
+          case TYPE_STRING:{
+              size_t len = strlen(tok);
+              if (len > 0) {
+                *((char **) cv->val) = (char *) TSmalloc(len + 1);
+                strcpy(*((char **) cv->val), tok);
+                TSError("Parsed string config value %s : %s", cv->str, tok);
+                TSDebug(DEBUG_TAG, "Parsed string config value %s : %s", cv->str, tok);
+              }
+              break;
+            }
+          case TYPE_BOOL:{
+              size_t len = strlen(tok);
+              if (len > 0) {
+                if (*tok == '1' || *tok == 't')
+                  *((bool *) cv->val) = true;
+                else
+                  *((bool *) cv->val) = false;
+                TSError("Parsed bool config value %s : %d", cv->str, *((bool *) cv->val));
+                TSDebug(DEBUG_TAG, "Parsed bool config value %s : %d", cv->str, *((bool *) cv->val));
+              }
+              break;
+            }
+          default:
+            break;
+          }
+        }
+      }
+      cv++;
+    }
+  }
+}
+
+bool
+read_upload_config(const char *file_name)
+{
+  TSDebug(DEBUG_TAG, "read_upload_config: %s", file_name);
+  uconfig = (upload_config *) TSmalloc(sizeof(upload_config));
+  uconfig->use_disk_buffer = true;
+  uconfig->convert_url = false;
+  uconfig->chunk_size = 16 * 1024;
+  uconfig->mem_buffer_size = 32 * 1024;
+  uconfig->url_list_file = NULL;
+  uconfig->max_url_length = 4096;
+  uconfig->url_num = 0;
+  uconfig->urls = NULL;
+  uconfig->base_dir = NULL;
+  uconfig->subdir_num = 64;
+  uconfig->thread_num = 4;
+
+  struct config_val_ul config_vals[] = {
+    {"use_disk_buffer", TYPE_BOOL, &(uconfig->use_disk_buffer)},
+    {"convert_url", TYPE_BOOL, &(uconfig->convert_url)},
+    {"chunk_size", TYPE_ULONG, &(uconfig->chunk_size)},
+    {"mem_buffer_size", TYPE_ULONG, &(uconfig->mem_buffer_size)},
+    {"url_list_file", TYPE_STRING, &(uconfig->url_list_file)},
+    {"max_url_length", TYPE_ULONG, &(uconfig->max_url_length)},
+    {"base_dir", TYPE_STRING, &(uconfig->base_dir)},
+    {"subdir_num", TYPE_UINT, &(uconfig->subdir_num)},
+    {"thread_num", TYPE_UINT, &(uconfig->thread_num)},
+    {NULL, TYPE_LONG, NULL}
+  };
+  TSFile conf_file;
+  conf_file = TSfopen(file_name, "r");
+
+  if (conf_file != NULL) {
+    TSDebug(DEBUG_TAG, "opened config: %s", file_name);
+    char buf[1024];
+    while (TSfgets(conf_file, buf, sizeof(buf) - 1) != NULL) {
+      if (buf[0] != '#') {
+        parse_config_line(buf, config_vals);
+      }
+    }
+    TSfclose(conf_file);
+  } else {
+    TSError("Failed to open upload config file %s", file_name);
+    // if fail to open config file, use the default config
+  }
+
+  if (uconfig->base_dir == NULL) {
+    uconfig->base_dir = TSstrdup("/FOOBAR/var/buffer_upload_tmp");
+  } else {
+    // remove the "/" at the end.
+    if (uconfig->base_dir[strlen(uconfig->base_dir) - 1] == '/') {
+      uconfig->base_dir[strlen(uconfig->base_dir) - 1] = '\0';
+    }
+  }
+
+  if (uconfig->subdir_num <= 0) {
+    // default value
+    uconfig->subdir_num = 64;
+  }
+
+  if (uconfig->thread_num <= 0) {
+    // default value
+    uconfig->thread_num = 4;
+  }
+
+  return true;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+  TSCont contp;
+  char default_filename[1024];
+  const char *conf_filename;
+
+  if (argc > 1) {
+    conf_filename = argv[1];
+  } else {
+    sprintf(default_filename, "%s/upload.conf", TSPluginDirGet());
+    conf_filename = default_filename;
+  }
+
+  if (!read_upload_config(conf_filename) || !uconfig) {
+    if (argc > 1) {
+      TSError("Failed to read upload config %s\n", argv[1]);
+    } else {
+      TSError("No config file specified. Specify conf file in plugin.conf: "
+              "'buffer_upload.so /path/to/upload.conf'\n");
+    }
+  }
+  // set the num of threads for disk AIO
+  if (TSAIOThreadNumSet(uconfig->thread_num) == TS_ERROR) {
+    TSError("Failed to set thread number.");
+  }
+
+  TSDebug(DEBUG_TAG, "uconfig->url_list_file: %s", uconfig->url_list_file);
+  if (uconfig->url_list_file) {
+    load_urls(uconfig->url_list_file);
+    TSDebug(DEBUG_TAG, "loaded uconfig->url_list_file, num urls: %d", uconfig->url_num);
+  }
+
+  info.plugin_name = const_cast<char*>("buffer_upload");
+  info.vendor_name = const_cast<char*>("Apache Software Foundation");
+  info.support_email = const_cast<char*>("dev@trafficserver.apache.org");
+
+  if (uconfig->use_disk_buffer && !create_directory()) {
+    TSError("Directory creation failed.");
+    uconfig->use_disk_buffer = 0;
+  }
+
+  if (TSPluginRegister(TS_SDK_VERSION_2_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed.");
+  }
+
+  /* create the statistic variables */
+  upload_vc_count = TSStatCreate("upload_vc.count", TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+
+  contp = TSContCreate(attach_pvc_plugin, NULL);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK, contp);
+}
+
diff --git a/plugins/experimental/channel_stats/Makefile.am b/plugins/experimental/channel_stats/Makefile.am
new file mode 100644
index 00000000..032a8b2d
--- /dev/null
+++ b/plugins/experimental/channel_stats/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = channel_stats.la
+channel_stats_la_SOURCES = channel_stats.cc
+channel_stats_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/channel_stats/Makefile.in b/plugins/experimental/channel_stats/Makefile.in
new file mode 100644
index 00000000..5cfdadc0
--- /dev/null
+++ b/plugins/experimental/channel_stats/Makefile.in
@@ -0,0 +1,935 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
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+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
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+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
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+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
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+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
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+am_channel_stats_la_OBJECTS = channel_stats.lo
+channel_stats_la_OBJECTS = $(am_channel_stats_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
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+am__v_lt_0 = --silent
+am__v_lt_1 = 
+channel_stats_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(channel_stats_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
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+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
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+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(channel_stats_la_SOURCES)
+DIST_SOURCES = $(channel_stats_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
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+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
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+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
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+use_tproxy = @use_tproxy@
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+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
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+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
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+channel_stats_la_SOURCES = channel_stats.cc
+channel_stats_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
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+
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/channel_stats/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/channel_stats/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+channel_stats.la: $(channel_stats_la_OBJECTS) $(channel_stats_la_DEPENDENCIES) $(EXTRA_channel_stats_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(channel_stats_la_LINK) -rpath $(pkglibdir) $(channel_stats_la_OBJECTS) $(channel_stats_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/channel_stats.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
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+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
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+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
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+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
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+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+install-exec: install-exec-am
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+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
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+dvi: dvi-am
+
+dvi-am:
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+html: html-am
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+html-am:
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+info: info-am
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+install-data-am:
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+install-exec-am: install-pkglibLTLIBRARIES
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+	-rm -rf ./$(DEPDIR)
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+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/channel_stats/Makefile.tsxs b/plugins/experimental/channel_stats/Makefile.tsxs
new file mode 100644
index 00000000..20217a18
--- /dev/null
+++ b/plugins/experimental/channel_stats/Makefile.tsxs
@@ -0,0 +1,28 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+TSXS?=tsxs
+
+%.so: %.cc
+	$(TSXS) -o $@ $<
+
+all: channel_stats.so
+
+install: all
+	$(TSXS) -i -o channel_stats.so
+
+clean:
+	rm -f *.lo *.so
diff --git a/plugins/experimental/channel_stats/README b/plugins/experimental/channel_stats/README
new file mode 100644
index 00000000..5c444ec6
--- /dev/null
+++ b/plugins/experimental/channel_stats/README
@@ -0,0 +1,105 @@
+channel_stats plugin for Apache Traffic Server 3.0.0+
+
+About channel_stats plugin
+==========================
+channel_stats plugin collect the runtime statistics (speed, request count and
+more in the future) for each channel. The stats is exposed with http interface
+in json. (The code of interface is from 'stats_over_http' plugin.)
+
+In general, the plugin could be used on reverse proxy with a **fixed** number
+of remap rules. It's not designed for the proxy which serves unlimited channels
+(like open-relay forward proxy).
+
+
+Installation
+==========================
+Compile:
+  make -f Makefile.tsxs
+  sudo make install -f Makefile.tsxs
+(if 'tsxs' is not in your PATH, run make by appending TSXS=/path/to/ts/bin/tsxs)
+
+Edit:
+  Add 'channel_stats.so' to plugins.config.
+  By default, the path of http interface is '_cstats'. For safety, you should
+  change it by adding a parameter after 'channel_stats.so'.
+  Example: 'channel_stats.so _my_cstats'.
+
+Start:
+  Restart Traffic Server: sudo traffic_line -L or sudo trafficserver restart
+
+
+Viewing Stats
+==========================
+Visit http://local_IP:port/_cstats (or as you configured in plugin.config)
+Output will be in json:
+
+{
+  "channel": {
+    "www.example.com": {
+      "response.bytes.content": "3486995502046",
+      "response.count.2xx.get": "64040675",
+      "response.count.5xx.get": "1404",
+      "speed.ua.bytes_per_sec_64k": "3972287"
+    },
+    "www.test.com": {
+      "response.bytes.content": "3349404916760",
+      "response.count.2xx.get": "64038172",
+      "response.count.5xx.get": "30",
+      "speed.ua.bytes_per_sec_64k": "3989255"
+    }
+  },
+ "global": {
+    "response.count.2xx.get": "268516715",
+    "response.bytes.content": "58537730819906",
+    "channel.count": "10",
+    "server": "3.0.4"
+  }
+}
+
+Available stats:
+ - response.bytes.content: transferred content length (not including header)
+ - response.count.2xx.get: 2xx transaction count
+ - response.count.5xx.get: 5xx transaction count
+ - speed.ua.bytes_per_sec_64k: count of transaction whose speed is < 64KBps
+
+Additional parameters:
+ - topn: only output top N channels order by response count
+ - channel: only output the channels which contain specific string
+ - global: also display TS internal stats as 'stats_over_http' plugin
+ Example:
+ - http://127.0.0.1/_cstats?global
+ - http://127.0.0.1/_cstats?topn=5
+ - http://127.0.0.1/_cstats?channel=test.com
+ - http://127.0.0.1/_cstats?channel=test.com&topn=5&global
+If you have a large number of channels (e.g. more than 10k), those parameters
+may not be heavily used due to extra overhead.
+
+
+Warning
+==========================
+Security
+ - As mentioned above, you should change default path of http interface to make
+   other people harder to access your channel stats.
+ - For IPv4, plugin will make sure visitor is from private network.
+   (http://en.wikipedia.org/wiki/Private_network#Private_IPv4_address_spaces)
+   In addition, you should deny the request to http interface on your L7 front-
+   end because your L7 server and TS are probably in a same local network. And
+   currently plugin will deny the request from IPv6 address.
+ - The number of channels is limited to 100000.
+Performance
+ - According to load test, QPS will decrease by around 5% after enabling plugin.
+
+
+DEV
+==========================
+See also "Get Involved" on http://trafficserver.apache.org/
+
+
+ChangeLog
+==========================
+
+Version 0.2
+  - Count 5xx response
+
+Version 0.1 (11/26/12)
+  - Initial release
diff --git a/plugins/experimental/channel_stats/channel_stats.cc b/plugins/experimental/channel_stats/channel_stats.cc
new file mode 100644
index 00000000..d2ee2285
--- /dev/null
+++ b/plugins/experimental/channel_stats/channel_stats.cc
@@ -0,0 +1,825 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include "ink_platform.h"
+#include "ink_defs.h"
+
+#include <cstdio>
+#include <cstring>
+#include <cctype>
+#include <string>
+#include <map> // may optimize by using hash_map, but mind compiler portability
+#include <vector>
+#include <algorithm>
+#include <sstream>
+#include <arpa/inet.h>
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+
+#include <ts/ts.h>
+#if (TS_VERSION_NUMBER < 3003001)
+// get TSHttpTxnStartTimeGet
+#include <ts/experimental.h>
+#endif
+
+#include "debug_macros.h"
+
+#define PLUGIN_NAME     "channel_stats"
+#define PLUGIN_VERSION  "0.2"
+
+#define MAX_SPEED 999999999
+
+/* limit the number of channels (items) to avoid potential attack,
+   regex_map rule can also generate infinite channels (hosts) */
+#define MAX_MAP_SIZE 100000
+
+static std::string api_path("_cstats");
+
+// global stats
+static uint64_t global_response_count_2xx_get = 0;  // 2XX GET response count
+static uint64_t global_response_bytes_content = 0;  // transferred bytes
+
+// channel stats
+struct channel_stat {
+  channel_stat()
+      : response_bytes_content(0),
+        response_count_2xx(0),
+        response_count_5xx(0),
+        speed_ua_bytes_per_sec_64k(0) {
+  }
+
+  inline void increment(uint64_t rbc, uint64_t rc2,
+                        uint64_t rc5, uint64_t sbps6) {
+    if (rbc) __sync_fetch_and_add(&response_bytes_content, rbc);
+    if (rc2) __sync_fetch_and_add(&response_count_2xx, rc2);
+    if (rc5) __sync_fetch_and_add(&response_count_5xx, rc5);
+    if (sbps6) __sync_fetch_and_add(&speed_ua_bytes_per_sec_64k, sbps6);
+  }
+
+  inline void debug_channel() {
+    debug("response.bytes.content: %" PRIu64 "", response_bytes_content);
+    debug("response.count.2xx: %" PRIu64 "", response_count_2xx);
+    debug("response.count.5xx: %" PRIu64 "", response_count_5xx);
+    debug("speed.ua.bytes_per_sec_64k: %" PRIu64 "", speed_ua_bytes_per_sec_64k);
+  }
+
+  uint64_t response_bytes_content;
+  uint64_t response_count_2xx;
+  uint64_t response_count_5xx;
+  uint64_t speed_ua_bytes_per_sec_64k;
+};
+
+typedef std::map<std::string, channel_stat *> stats_map_t;
+typedef stats_map_t::iterator smap_iterator;
+
+static stats_map_t channel_stats;
+static TSMutex stats_map_mutex;
+
+// api Intercept Data
+typedef struct intercept_state_t
+{
+  TSVConn net_vc;
+  TSVIO read_vio;
+  TSVIO write_vio;
+
+  TSIOBuffer req_buffer;
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  int output_bytes;
+  int body_written;
+
+  int show_global; // default 0
+  char * channel; // default ""
+  int topn; // default -1
+  int deny; // default 0
+} intercept_state;
+
+struct private_seg_t {
+  const in_addr_t net;
+  const in_addr_t mask;
+};
+
+// don't put inet_addr("255.255.255.255"), see BUGS in 'man 3 inet_addr'
+static struct private_seg_t private_segs[] = {
+  {inet_addr("10.0.0.0"), inet_addr("255.0.0.0")},
+  {inet_addr("127.0.0.0"), inet_addr("255.0.0.0")},
+  {inet_addr("172.16.0.0"), inet_addr("255.240.0.0")},
+  {inet_addr("192.168.0.0"), inet_addr("255.255.0.0")}
+};
+
+static int num_private_segs = sizeof(private_segs) / sizeof(private_seg_t);
+
+// all parameters are in network byte order
+static bool
+is_in_net(const in_addr_t addr,
+          const in_addr_t netaddr,
+          const in_addr_t netmask)
+{
+  return (addr & netmask) == (netaddr & netmask);
+}
+
+static bool
+is_private_ip(const in_addr_t addr)
+{
+  for (int i = 0; i < num_private_segs; i++) {
+    if (is_in_net(addr, private_segs[i].net, private_segs[i].mask))
+      return true;
+  }
+  return false;
+}
+
+static int handle_event(TSCont contp, TSEvent event, void *edata);
+static int api_handle_event(TSCont contp, TSEvent event, void *edata);
+
+/*
+  Get the value of parameter in url querystring
+  Return 0 and a null string if not find the parameter.
+  Return 1 and a value string, normally
+  Return 2 and a max_length value string if the length of the value exceeds.
+
+  Possible appearance: ?param=value&fake_param=value&param=value
+*/
+static int
+get_query_param(const char *query, const char *param,
+                char *result, int max_length)
+{
+  const char *pos = 0;
+
+  pos = strstr(query, param); // try to find in querystring of url
+  if (pos != query) {
+    // if param is not prefix of querystring
+    while (pos && *(pos - 1) != '&') { // param must be after '&'
+        pos = strstr(pos + strlen(param), param); // try next
+    }
+  }
+
+  if (!pos) {
+    // set it null string if not found
+    result[0] = '\0';
+    return 0;
+  }
+
+  pos += strlen(param); // skip 'param='
+
+  // copy value of param
+  int now = 0;
+  while (*pos != '\0' && *pos != '&' && now < max_length) {
+    result[now++] = *pos;
+    pos++;
+  }
+  result[now] = '\0'; // make sure null-terminated
+
+  if (*pos != '\0' && *pos != '&' && now == max_length)
+    return 2;
+  else
+    return 1;
+}
+
+/*
+  check if exist param in query string
+
+  Possible querystring: ?param1=value1&param2
+  (param2 is a param which "has_no_value")
+*/
+static int
+has_query_param(const char *query, const char *param, int has_no_value)
+{
+  const char *pos = 0;
+
+  pos = strstr(query, param); // try to find in querystring of url
+  if (pos != query) {
+    // if param is not prefix of querystring
+    while (pos && *(pos - 1) != '&') { // param must be after '&'
+        pos = strstr(pos + strlen(param), param); // try next
+    }
+  }
+
+  if (!pos)
+    return 0;
+
+  pos += strlen(param); // skip 'param='
+
+  if (has_no_value) {
+    if (*pos == '\0' || *pos == '&') return 1;
+  } else {
+    if (*pos == '=') return 1;
+  }
+
+  return 0;
+}
+
+static void
+get_api_params(TSMBuffer   bufp,
+               TSMLoc      url_loc,
+               int *       show_global,
+               char **     channel,
+               int *       topn)
+{
+  const char * query; // not null-terminated, get from TS api
+  char * tmp_query = NULL; // null-terminated
+  int query_len = 0;
+
+  *show_global = 0;
+  *topn = -1;
+
+  query = TSUrlHttpQueryGet(bufp, url_loc, &query_len);
+  if (query_len == 0)
+    return;
+  tmp_query = TSstrndup(query, query_len);
+  debug_api("querystring: %s", tmp_query);
+
+  if (has_query_param(tmp_query, "global", 1)) {
+    debug_api("found 'global' param");
+    *show_global = 1;
+  }
+
+  *channel = (char *) TSmalloc(query_len);
+  if (get_query_param(tmp_query, "channel=", *channel, query_len)) {
+    debug_api("found 'channel' param: %s", *channel);
+  }
+
+  std::stringstream ss;
+  char * tmp_topn = (char *) TSmalloc(query_len);
+  if (get_query_param(tmp_query, "topn=", tmp_topn, 10)) {
+    if (strlen(tmp_topn) > 0) {
+      ss.str(tmp_topn);
+      ss >> *topn;
+    }
+    debug_api("found 'topn' param: %d", *topn);
+  }
+
+  TSfree(tmp_query);
+  TSfree(tmp_topn);
+}
+
+static void
+handle_read_req(TSCont /* contp ATS_UNUSED */, TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc = NULL;
+  TSMLoc url_loc = NULL;
+  const char *method;
+  int method_length = 0;
+  TSCont txn_contp;
+
+  const char * path;
+  int path_len;
+  struct sockaddr * client_addr;
+  struct sockaddr_in * client_addr4;
+  TSCont api_contp;
+  char * client_ip;
+  intercept_state *api_state;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    error("couldn't retrieve client's request");
+    goto cleanup;
+  }
+
+  method = TSHttpHdrMethodGet(bufp, hdr_loc, &method_length);
+  if (0 != strncmp(method, TS_HTTP_METHOD_GET, method_length)) {
+    debug("do not count %.*s method", method_length, method);
+    goto cleanup;
+  }
+
+  if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) != TS_SUCCESS)
+    goto cleanup;
+
+  path = TSUrlPathGet(bufp, url_loc, &path_len);
+  if (path_len == 0 || (unsigned)path_len != api_path.length() ||
+        strncmp(api_path.c_str(), path, path_len) != 0) {
+    goto not_api;
+  }
+
+  // register our intercept
+  debug_api("Intercepting request");
+  api_state = (intercept_state *) TSmalloc(sizeof(*api_state));
+  memset(api_state, 0, sizeof(*api_state));
+  get_api_params(bufp, url_loc,
+                 &api_state->show_global, &api_state->channel,
+                 &api_state->topn);
+
+  // check private ip
+  client_addr = (struct sockaddr *) TSHttpTxnClientAddrGet(txnp);
+  if (client_addr->sa_family == AF_INET) {
+    client_addr4 = (struct sockaddr_in *) client_addr;
+    if (!is_private_ip(client_addr4->sin_addr.s_addr)) {
+      client_ip = (char *) TSmalloc(INET_ADDRSTRLEN);
+      inet_ntop(AF_INET, &client_addr4->sin_addr, client_ip, INET_ADDRSTRLEN);
+      debug_api("%s is not a private IP, request denied", client_ip);
+      api_state->deny = 1;
+      TSfree(client_ip);
+    }
+  } else {
+    debug_api("not IPv4, request denied"); // TODO check AF_INET6's private IP?
+    api_state->deny = 1;
+  }
+
+  TSSkipRemappingSet(txnp, 1); //not strictly necessary
+
+  api_contp = TSContCreate(api_handle_event, TSMutexCreate());
+  TSContDataSet(api_contp, api_state);
+  TSHttpTxnIntercept(api_contp, txnp);
+
+  goto cleanup;
+
+not_api:
+  txn_contp = TSContCreate(handle_event, NULL); // reuse global handler
+  TSHttpTxnHookAdd(txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_contp);
+
+cleanup:
+  if (url_loc) TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+  if (hdr_loc) TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+}
+
+static bool
+get_pristine_host(TSHttpTxn txnp, TSMBuffer bufp, std::string &host)
+{
+  TSMLoc purl_loc;
+  const char * pristine_host;
+  int pristine_host_len = 0;
+  int pristine_port;
+
+  if (TSHttpTxnPristineUrlGet(txnp, &bufp, &purl_loc) != TS_SUCCESS) {
+    debug("couldn't retrieve pristine url");
+    return false;
+  }
+
+  pristine_host = TSUrlHostGet(bufp, purl_loc, &pristine_host_len);
+  if (pristine_host_len == 0) {
+    debug("couldn't retrieve pristine host");
+    return false;
+  }
+
+  pristine_port = TSUrlPortGet(bufp, purl_loc);
+  host = std::string(pristine_host, pristine_host_len);
+  if (pristine_port != 80) {
+    char buf[12];
+    if (!sprintf(buf, ":%d", pristine_port))
+      return false;
+    host.append(buf);
+  }
+
+  debug("pristine host: %.*s", pristine_host_len, pristine_host);
+  debug("pristine port: %d", pristine_port);
+  debug("host to lookup: %s", host.c_str());
+
+  return true;
+}
+
+static bool
+get_channel_stat(const std::string &host,
+                 channel_stat *    &stat,
+                 int    status_code_type)
+{
+  smap_iterator stat_it;
+
+  stat_it = channel_stats.find(host);
+
+  if (stat_it != channel_stats.end()) {
+    stat = stat_it->second;
+  } else {
+    if (status_code_type != 2) {
+      // if request's host isn't in your remap.config, response code will be 404
+      // we should not count that channel in this situation
+      debug("not 2xx response, do not create stat for this channel now");
+      return false;
+    }
+    if (channel_stats.size() >= MAX_MAP_SIZE) {
+      warning("channel_stats map exceeds max size");
+      return false;
+    }
+
+    stat = new channel_stat();
+    std::pair<smap_iterator, bool> insert_ret;
+    TSMutexLock(stats_map_mutex);
+    insert_ret = channel_stats.insert(std::make_pair(host, stat));
+    TSMutexUnlock(stats_map_mutex);
+    if (insert_ret.second == true) {
+      // insert successfully
+      debug("******** new channel(#%zu) ********", channel_stats.size());
+    } else {
+      warning("stat of this channel already existed");
+      delete stat;
+      stat = insert_ret.first->second;
+    }
+  }
+
+  return true;
+}
+
+static uint64_t
+get_txn_user_speed(TSHttpTxn txnp, uint64_t body_bytes)
+{
+  uint64_t user_speed = 0;
+  TSHRTime start_time = 0;
+  TSHRTime end_time = 0;
+  TSHRTime interval_time = 0;
+
+#if (TS_VERSION_NUMBER < 3003001)
+  TSHttpTxnStartTimeGet(txnp, &start_time);
+  TSHttpTxnEndTimeGet(txnp, &end_time);
+#else
+  TSHttpTxnMilestoneGet(txnp, TS_MILESTONE_UA_BEGIN, &start_time);
+  TSHttpTxnMilestoneGet(txnp, TS_MILESTONE_UA_CLOSE, &end_time);
+#endif
+
+  if (start_time != 0 && end_time != 0 && end_time >= start_time) {
+    interval_time = end_time - start_time;
+  } else {
+    warning("invalid time, start: %" PRId64", end: %" PRId64"", start_time, end_time);
+    return 0;
+  }
+
+  if (interval_time == 0 || body_bytes == 0)
+    user_speed = MAX_SPEED;
+  else
+    user_speed = (uint64_t)((float)body_bytes / interval_time * HRTIME_SECOND);
+
+  debug("start time: %" PRId64 "", start_time);
+  debug("end time: %" PRId64 "", end_time);
+  debug("interval time: %" PRId64 "", interval_time);
+  debug("interval seconds: %.5f", interval_time / (float)HRTIME_SECOND);
+  debug("speed bytes per second: %" PRIu64 "", user_speed);
+
+  return user_speed;
+}
+
+static void
+handle_txn_close(TSCont /* contp ATS_UNUSED */, TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSHttpStatus status_code;
+  int status_code_type;
+  uint64_t user_speed;
+  uint64_t body_bytes;
+  channel_stat *stat;
+  std::string host;
+
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    debug("couldn't retrieve final response");
+    return;
+  }
+
+  status_code = TSHttpHdrStatusGet(bufp, hdr_loc);
+  status_code_type = status_code / 100;
+  body_bytes = TSHttpTxnClientRespBodyBytesGet(txnp);
+
+  __sync_fetch_and_add(&global_response_bytes_content, body_bytes);
+  if (status_code_type == 2)
+    __sync_fetch_and_add(&global_response_count_2xx_get, 1);
+
+  debug("body bytes: %" PRIu64 "", body_bytes);
+  debug("2xx req count: %" PRIu64 "", global_response_count_2xx_get);
+
+  if (!get_pristine_host(txnp, bufp, host))
+    goto cleanup;
+
+  // get or create the stat
+  if (!get_channel_stat(host, stat, status_code_type))
+    goto cleanup;
+
+  user_speed = get_txn_user_speed(txnp, body_bytes);
+
+  stat->increment(body_bytes,
+                  status_code_type == 2 ? 1 : 0,
+                  status_code_type == 5 ? 1 : 0,
+                  (user_speed < 64000 && user_speed > 0) ? 1 : 0);
+  stat->debug_channel();
+
+cleanup:
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+}
+
+static int
+handle_event(TSCont contp, TSEvent event, void *edata) {
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  switch (event) {
+    case TS_EVENT_HTTP_READ_REQUEST_HDR: // for global contp
+      debug("---------- new request ----------");
+      handle_read_req(contp, txnp);
+      break;
+    case TS_EVENT_HTTP_TXN_CLOSE: // for txn contp
+      handle_txn_close(contp, txnp);
+      TSContDestroy(contp);
+      break;
+    default:
+      error("unknown event for this plugin");
+  }
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+
+  return 0;
+}
+
+// below is api part
+
+static void
+stats_cleanup(TSCont contp, intercept_state * api_state)
+{
+  if (api_state->req_buffer) {
+    TSIOBufferDestroy(api_state->req_buffer);
+    api_state->req_buffer = NULL;
+  }
+
+  if (api_state->resp_buffer) {
+    TSIOBufferDestroy(api_state->resp_buffer);
+    api_state->resp_buffer = NULL;
+  }
+
+  TSfree(api_state->channel);
+  TSVConnClose(api_state->net_vc);
+  TSfree(api_state);
+  TSContDestroy(contp);
+}
+
+static void
+stats_process_accept(TSCont contp, intercept_state * api_state)
+{
+
+  api_state->req_buffer = TSIOBufferCreate();
+  api_state->resp_buffer = TSIOBufferCreate();
+  api_state->resp_reader = TSIOBufferReaderAlloc(api_state->resp_buffer);
+  api_state->read_vio = TSVConnRead(api_state->net_vc, contp, api_state->req_buffer, INT64_MAX);
+}
+
+static int
+stats_add_data_to_resp_buffer(const char *s, intercept_state * api_state)
+{
+  int s_len = strlen(s);
+
+  TSIOBufferWrite(api_state->resp_buffer, s, s_len);
+
+  return s_len;
+}
+
+static const char RESP_HEADER[] =
+  "HTTP/1.0 200 Ok\r\nContent-Type: application/json\r\nCache-Control: no-cache\r\n\r\n";
+
+static int
+stats_add_resp_header(intercept_state * api_state)
+{
+  return stats_add_data_to_resp_buffer(RESP_HEADER, api_state);
+}
+
+static void
+stats_process_read(TSCont contp, TSEvent event, intercept_state * api_state)
+{
+  debug_api("stats_process_read(%d)", event);
+  if (event == TS_EVENT_VCONN_READ_READY) {
+    api_state->output_bytes = stats_add_resp_header(api_state);
+    TSVConnShutdown(api_state->net_vc, 1, 0);
+    api_state->write_vio = TSVConnWrite(api_state->net_vc, contp, api_state->resp_reader, INT64_MAX);
+  } else if (event == TS_EVENT_ERROR) {
+    error_api("stats_process_read: Received TS_EVENT_ERROR\n");
+  } else if (event == TS_EVENT_VCONN_EOS) {
+    // client may end the connection, simply return
+    return;
+  } else if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+    error_api("stats_process_read: Received TS_EVENT_NET_ACCEPT_FAILED\n");
+  } else {
+    error_api("Unexpected Event %d\n", event);
+    // TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+#define APPEND(a) api_state->output_bytes += stats_add_data_to_resp_buffer(a, api_state)
+#define APPEND_STAT(a, fmt, v) do { \
+  char b[256]; \
+  if(snprintf(b, sizeof(b), "\"%s\": \"" fmt "\",\n", a, v) < (signed)sizeof(b)) \
+    APPEND(b); \
+} while(0)
+#define APPEND_END_STAT(a, fmt, v) do { \
+  char b[256]; \
+  if(snprintf(b, sizeof(b), "\"%s\": \"" fmt "\"\n", a, v) < (signed)sizeof(b)) \
+    APPEND(b); \
+} while(0)
+#define APPEND_DICT_NAME(a) do { \
+  char b[256]; \
+  if(snprintf(b, sizeof(b), "\"%s\": {\n", a) < (signed)sizeof(b)) \
+    APPEND(b); \
+} while(0)
+
+static void
+json_out_stat(TSRecordType /* rec_type ATS_UNUSED */, void *edata, int /* registered ATS_UNUSED */, const char *name,
+              TSRecordDataType data_type, TSRecordData *datum) {
+  intercept_state *api_state = (intercept_state *) edata;
+
+  switch(data_type) {
+  case TS_RECORDDATATYPE_COUNTER:
+    APPEND_STAT(name, "%" PRId64, datum->rec_counter); break;
+  case TS_RECORDDATATYPE_INT:
+    APPEND_STAT(name, "%" PRIu64, datum->rec_int); break;
+  case TS_RECORDDATATYPE_FLOAT:
+    APPEND_STAT(name, "%f", datum->rec_float); break;
+  case TS_RECORDDATATYPE_STRING:
+    APPEND_STAT(name, "%s", datum->rec_string); break;
+  default:
+    debug_api("unknown type for %s: %d", name, data_type);
+    break;
+  }
+}
+
+template<class T>
+struct compare
+: std::binary_function<T,T,bool>
+{
+   inline bool operator()(const T& lhs, const T& rhs) {
+      return lhs.second->response_count_2xx > rhs.second->response_count_2xx;
+   }
+};
+
+static void
+append_channel_stat(intercept_state * api_state,
+                    const std::string channel, channel_stat * cs,
+                    int is_last)
+{
+  APPEND_DICT_NAME(channel.c_str());
+  APPEND_STAT("response.bytes.content", "%" PRIu64, cs->response_bytes_content);
+  APPEND_STAT("response.count.2xx.get", "%" PRIu64, cs->response_count_2xx);
+  APPEND_STAT("response.count.5xx.get", "%" PRIu64, cs->response_count_5xx);
+  APPEND_END_STAT("speed.ua.bytes_per_sec_64k", "%" PRIu64, cs->speed_ua_bytes_per_sec_64k);
+  if (is_last)
+    APPEND("}\n");
+  else
+    APPEND("},\n");
+}
+
+static void
+json_out_channel_stats(intercept_state * api_state) {
+  if (channel_stats.empty())
+    return;
+
+  typedef std::pair<std::string, channel_stat *> data_pair;
+  typedef std::vector<data_pair> stats_vec_t;
+  smap_iterator it;
+
+  debug("appending channel stats");
+
+  if (api_state->topn > -1 ||
+      (api_state->channel && strlen(api_state->channel) > 0)) {
+    // will use vector to output
+
+    if (api_state->topn == 0)
+      return;
+
+    stats_vec_t stats_vec; // a tmp vector to sort or filter
+    if (strlen(api_state->channel) > 0) {
+      // filter by channel
+      size_t found;
+      for (it=channel_stats.begin(); it != channel_stats.end(); it++) {
+        found = it->first.find(api_state->channel);
+        if (found != std::string::npos)
+          stats_vec.push_back(*it);
+      }
+    } else {
+      for (it=channel_stats.begin(); it != channel_stats.end(); it++)
+        stats_vec.push_back(*it);
+      /* stats_vec.assign is not safe when map is being inserted concurrently */
+    }
+
+    if (stats_vec.empty())
+      return;
+
+    stats_vec_t::size_type out_st = stats_vec.size();
+    if (api_state->topn > 0) { // need sort and limit output size
+      if ((unsigned)api_state->topn < stats_vec.size())
+        out_st = (unsigned)api_state->topn;
+      else
+        api_state->topn = stats_vec.size();
+      std::partial_sort(stats_vec.begin(), stats_vec.begin() + api_state->topn,
+                        stats_vec.end(), compare<data_pair>());
+    } // else will output whole vector without sort
+
+    stats_vec_t::size_type i;
+    for (i = 0; i < out_st - 1; i++) {
+      append_channel_stat(api_state, stats_vec[i].first, stats_vec[i].second, 0);
+    }
+    append_channel_stat(api_state, stats_vec[i].first, stats_vec[i].second, 1);
+
+  } else {
+    smap_iterator last_it = channel_stats.end();
+    last_it--;
+    for (it = channel_stats.begin(); it != last_it; it++) {
+      append_channel_stat(api_state, it->first, it->second, 0);
+    }
+    append_channel_stat(api_state, it->first, it->second, 1);
+  }
+}
+
+static void
+json_out_stats(intercept_state * api_state)
+{
+  const char *version;
+
+  APPEND("{ \"channel\": {\n");
+  json_out_channel_stats(api_state);
+  APPEND("  },\n");
+
+  APPEND(" \"global\": {\n");
+  APPEND_STAT("response.count.2xx.get", "%" PRIu64, global_response_count_2xx_get);
+  APPEND_STAT("response.bytes.content", "%" PRIu64, global_response_bytes_content);
+  APPEND_STAT("channel.count", "%zu", channel_stats.size());
+
+  if (api_state->show_global)
+    TSRecordDump(TS_RECORDTYPE_PROCESS, json_out_stat, api_state); // internal stats
+
+  version = TSTrafficServerVersionGet();
+  APPEND("\"server\": \"");
+  APPEND(version);
+  APPEND("\"\n");
+
+  APPEND("  }\n}\n");
+}
+
+static void
+stats_process_write(TSCont contp, TSEvent event, intercept_state * api_state)
+{
+  if (event == TS_EVENT_VCONN_WRITE_READY) {
+    if (api_state->body_written == 0) {
+      debug_api("plugin adding response body");
+      api_state->body_written = 1;
+      if (!api_state->deny)
+        json_out_stats(api_state);
+      else
+        APPEND("forbidden");
+      TSVIONBytesSet(api_state->write_vio, api_state->output_bytes);
+    }
+    TSVIOReenable(api_state->write_vio);
+  } else if (TS_EVENT_VCONN_WRITE_COMPLETE) {
+    stats_cleanup(contp, api_state);
+  } else if (event == TS_EVENT_ERROR) {
+    error_api("stats_process_write: Received TS_EVENT_ERROR\n");
+  } else {
+    error_api("Unexpected Event %d\n", event);
+    // TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+static int
+api_handle_event(TSCont contp, TSEvent event, void *edata)
+{
+  intercept_state *api_state = (intercept_state *) TSContDataGet(contp);
+  if (event == TS_EVENT_NET_ACCEPT) {
+    api_state->net_vc = (TSVConn) edata;
+    stats_process_accept(contp, api_state);
+  } else if (edata == api_state->read_vio) {
+    stats_process_read(contp, event, api_state);
+  } else if (edata == api_state->write_vio) {
+    stats_process_write(contp, event, api_state);
+  } else {
+    error_api("Unexpected Event %d\n", event);
+    // TSReleaseAssert(!"Unexpected Event");
+  }
+  return 0;
+}
+
+// initial part
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  if (argc > 2) {
+    fatal("plugin does not accept more than 1 argument");
+  } else if (argc == 2) {
+    api_path = std::string(argv[1]);
+    debug_api("stats api path: %s", api_path.c_str());
+  }
+
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = (char *)PLUGIN_NAME;
+  info.vendor_name = (char *)"Apache Software Foundation";
+  info.support_email = (char *)"dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    fatal("plugin registration failed.");
+  }
+
+  info("%s(%s) plugin starting...", PLUGIN_NAME, PLUGIN_VERSION);
+
+  stats_map_mutex = TSMutexCreate();
+
+  TSCont cont = TSContCreate(handle_event, NULL);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
+}
+
+/* vim: set sw=2 tw=79 ts=2 et ai : */
diff --git a/plugins/experimental/channel_stats/debug_macros.h b/plugins/experimental/channel_stats/debug_macros.h
new file mode 100644
index 00000000..90d9f9d3
--- /dev/null
+++ b/plugins/experimental/channel_stats/debug_macros.h
@@ -0,0 +1,73 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#ifndef _DBG_MACROS_H
+#define _DBG_MACROS_H
+
+#include "ink_defs.h"
+
+#define TAG PLUGIN_NAME
+#define API_TAG PLUGIN_NAME ".api"
+
+#define debug_tag(tag, fmt, ...) do { \
+    if (unlikely(TSIsDebugTagSet(tag))) { \
+        TSDebug(tag, fmt, ##__VA_ARGS__); \
+    } \
+} while(0)
+
+#define debug(fmt, ...) \
+  debug_tag(TAG, "DEBUG: [%s:%d] [%s] " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__);
+
+#define info(fmt, ...) \
+  debug_tag(TAG, "INFO: " fmt, ##__VA_ARGS__);
+
+#define warning(fmt, ...) \
+  debug_tag(TAG, "WARNING: " fmt, ##__VA_ARGS__);
+
+#define error(fmt, ...) do { \
+  TSError("[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
+  debug_tag(TAG, "[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
+} while (0)
+
+#define fatal(fmt, ...) do { \
+  TSError("[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
+  debug_tag(TAG, "[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
+  exit(-1); \
+} while (0)
+
+#define debug_api(fmt, ...) \
+  debug_tag(API_TAG, "DEBUG: [%s:%d] [%s] " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__);
+
+#define error_api(fmt, ...) do { \
+  TSError("[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
+  debug_tag(API_TAG, "ERROR: [%s:%d] [%s] " fmt, __FILE__, __LINE__, __FUNCTION__ , ##__VA_ARGS__); \
+} while (0)
+
+#define HRTIME_FOREVER  (10*HRTIME_DECADE)
+#define HRTIME_DECADE   (10*HRTIME_YEAR)
+#define HRTIME_YEAR     (365*HRTIME_DAY+HRTIME_DAY/4)
+#define HRTIME_WEEK     (7*HRTIME_DAY)
+#define HRTIME_DAY      (24*HRTIME_HOUR)
+#define HRTIME_HOUR     (60*HRTIME_MINUTE)
+#define HRTIME_MINUTE   (60*HRTIME_SECOND)
+#define HRTIME_SECOND   (1000*HRTIME_MSECOND)
+#define HRTIME_MSECOND  (1000*HRTIME_USECOND)
+#define HRTIME_USECOND  (1000*HRTIME_NSECOND)
+#define HRTIME_NSECOND	(1LL)
+
+#endif //_DBG_MACROS_H
diff --git a/plugins/experimental/collapsed_connection/LICENSE b/plugins/experimental/collapsed_connection/LICENSE
new file mode 100644
index 00000000..3eebad27
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/LICENSE
@@ -0,0 +1,203 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      including but not limited to software source code, documentation
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+
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+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
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+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
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+      of this License, Derivative Works shall not include works that remain
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+      the original version of the Work and any modifications or additions
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+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright (C) 2014 Yahoo! Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
diff --git a/plugins/experimental/collapsed_connection/Makefile.am b/plugins/experimental/collapsed_connection/Makefile.am
new file mode 100644
index 00000000..6269cdae
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/Makefile.am
@@ -0,0 +1,25 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+if BUILD_COLLAPSED_CONNECTION_PLUGIN
+
+pkglib_LTLIBRARIES = collapsed_connection.la
+collapsed_connection_la_SOURCES = collapsed_connection.cc MurmurHash3.cc
+collapsed_connection_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+endif
diff --git a/plugins/experimental/collapsed_connection/Makefile.in b/plugins/experimental/collapsed_connection/Makefile.in
new file mode 100644
index 00000000..8b3a1d2c
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/Makefile.in
@@ -0,0 +1,942 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
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+
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+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
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+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
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+collapsed_connection_la_LIBADD =
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+	MurmurHash3.cc
+@BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE@am_collapsed_connection_la_OBJECTS = collapsed_connection.lo \
+@BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE@	MurmurHash3.lo
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+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(collapsed_connection_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
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+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
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+@BUILD_COLLAPSED_CONNECTION_PLUGIN_TRUE@collapsed_connection_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
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+
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+	  case '$(am__configure_deps)' in \
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+	      exit 1;; \
+	  esac; \
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+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/collapsed_connection/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/collapsed_connection/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
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+	esac;
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+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
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+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+collapsed_connection.la: $(collapsed_connection_la_OBJECTS) $(collapsed_connection_la_DEPENDENCIES) $(EXTRA_collapsed_connection_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(collapsed_connection_la_LINK) $(am_collapsed_connection_la_rpath) $(collapsed_connection_la_OBJECTS) $(collapsed_connection_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
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+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/MurmurHash3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/collapsed_connection.Plo@am__quote@
+
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+	$(am__define_uniq_tagged_files); \
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+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
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+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
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+	esac; \
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+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
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+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
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+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
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+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/collapsed_connection/MurmurHash3.cc b/plugins/experimental/collapsed_connection/MurmurHash3.cc
new file mode 100644
index 00000000..228ba9e8
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/MurmurHash3.cc
@@ -0,0 +1,234 @@
+//-----------------------------------------------------------------------------
+// MurmurHash3 was written by Austin Appleby, and is placed in the public
+// domain. The author hereby disclaims copyright to this source code.
+
+// Note - The x86 and x64 versions do _not_ produce the same results, as the
+// algorithms are optimized for their respective platforms. You can still
+// compile and run any of them on any platform, but your performance with the
+// non-native version will be less than optimal.
+
+#include "MurmurHash3.h"
+
+//-----------------------------------------------------------------------------
+#define	FORCE_INLINE inline __attribute__((always_inline))
+
+inline uint32_t rotl32 ( uint32_t x, int8_t r )
+{
+  return (x << r) | (x >> (32 - r));
+}
+
+inline uint64_t rotl64 ( uint64_t x, int8_t r )
+{
+  return (x << r) | (x >> (64 - r));
+}
+
+#define	ROTL32(x,y)	rotl32(x,y)
+#define ROTL64(x,y)	rotl64(x,y)
+
+#define BIG_CONSTANT(x) (x##LLU)
+
+
+//-----------------------------------------------------------------------------
+// Block read - if your platform needs to do endian-swapping or can only
+// handle aligned reads, do the conversion here
+
+FORCE_INLINE uint32_t getblock32 ( const uint32_t * p, int i )
+{
+  return p[i];
+}
+
+FORCE_INLINE uint64_t getblock64 ( const uint64_t * p, int i )
+{
+  return p[i];
+}
+
+//-----------------------------------------------------------------------------
+// Finalization mix - force all bits of a hash block to avalanche
+
+FORCE_INLINE uint32_t fmix32 ( uint32_t h )
+{
+  h ^= h >> 16;
+  h *= 0x85ebca6b;
+  h ^= h >> 13;
+  h *= 0xc2b2ae35;
+  h ^= h >> 16;
+
+  return h;
+}
+
+//----------
+
+FORCE_INLINE uint64_t fmix64 ( uint64_t k )
+{
+  k ^= k >> 33;
+  k *= BIG_CONSTANT(0xff51afd7ed558ccd);
+  k ^= k >> 33;
+  k *= BIG_CONSTANT(0xc4ceb9fe1a85ec53);
+  k ^= k >> 33;
+
+  return k;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_32 ( const void * key, int len,
+                          uint32_t seed, void * out )
+{
+  const uint8_t * data = (const uint8_t*)key;
+  const int nblocks = len / 4;
+
+  uint32_t h1 = seed;
+
+  const uint32_t c1 = 0xcc9e2d51;
+  const uint32_t c2 = 0x1b873593;
+
+  //----------
+  // body
+
+  const uint32_t * blocks = (const uint32_t *)(data + nblocks*4);
+
+  for(int i = -nblocks; i; i++)
+  {
+    uint32_t k1 = getblock32(blocks,i);
+
+    k1 *= c1;
+    k1 = ROTL32(k1,15);
+    k1 *= c2;
+
+    h1 ^= k1;
+    h1 = ROTL32(h1,13);
+    h1 = h1*5+0xe6546b64;
+  }
+
+  //----------
+  // tail
+
+  const uint8_t * tail = (const uint8_t*)(data + nblocks*4);
+
+  uint32_t k1 = 0;
+
+  switch(len & 3)
+  {
+  case 3: k1 ^= tail[2] << 16;
+  case 2: k1 ^= tail[1] << 8;
+  case 1: k1 ^= tail[0];
+          k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+  };
+
+  //----------
+  // finalization
+
+  h1 ^= len;
+
+  h1 = fmix32(h1);
+
+  *(uint32_t*)out = h1;
+}
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_128 ( const void * key, const int len,
+                           uint32_t seed, void * out )
+{
+  const uint8_t * data = (const uint8_t*)key;
+  const int nblocks = len / 16;
+
+  uint32_t h1 = seed;
+  uint32_t h2 = seed;
+  uint32_t h3 = seed;
+  uint32_t h4 = seed;
+
+  const uint32_t c1 = 0x239b961b;
+  const uint32_t c2 = 0xab0e9789;
+  const uint32_t c3 = 0x38b34ae5;
+  const uint32_t c4 = 0xa1e38b93;
+
+  //----------
+  // body
+
+  const uint32_t * blocks = (const uint32_t *)(data + nblocks*16);
+
+  for(int i = -nblocks; i; i++)
+  {
+    uint32_t k1 = getblock32(blocks,i*4+0);
+    uint32_t k2 = getblock32(blocks,i*4+1);
+    uint32_t k3 = getblock32(blocks,i*4+2);
+    uint32_t k4 = getblock32(blocks,i*4+3);
+
+    k1 *= c1; k1  = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+
+    h1 = ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b;
+
+    k2 *= c2; k2  = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+    h2 = ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747;
+
+    k3 *= c3; k3  = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+    h3 = ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35;
+
+    k4 *= c4; k4  = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+    h4 = ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17;
+  }
+
+  //----------
+  // tail
+
+  const uint8_t * tail = (const uint8_t*)(data + nblocks*16);
+
+  uint32_t k1 = 0;
+  uint32_t k2 = 0;
+  uint32_t k3 = 0;
+  uint32_t k4 = 0;
+
+  switch(len & 15)
+  {
+  case 15: k4 ^= tail[14] << 16;
+  case 14: k4 ^= tail[13] << 8;
+  case 13: k4 ^= tail[12] << 0;
+           k4 *= c4; k4  = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+  case 12: k3 ^= tail[11] << 24;
+  case 11: k3 ^= tail[10] << 16;
+  case 10: k3 ^= tail[ 9] << 8;
+  case  9: k3 ^= tail[ 8] << 0;
+           k3 *= c3; k3  = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+  case  8: k2 ^= tail[ 7] << 24;
+  case  7: k2 ^= tail[ 6] << 16;
+  case  6: k2 ^= tail[ 5] << 8;
+  case  5: k2 ^= tail[ 4] << 0;
+           k2 *= c2; k2  = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+  case  4: k1 ^= tail[ 3] << 24;
+  case  3: k1 ^= tail[ 2] << 16;
+  case  2: k1 ^= tail[ 1] << 8;
+  case  1: k1 ^= tail[ 0] << 0;
+           k1 *= c1; k1  = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+  };
+
+  //----------
+  // finalization
+
+  h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len;
+
+  h1 += h2; h1 += h3; h1 += h4;
+  h2 += h1; h3 += h1; h4 += h1;
+
+  h1 = fmix32(h1);
+  h2 = fmix32(h2);
+  h3 = fmix32(h3);
+  h4 = fmix32(h4);
+
+  h1 += h2; h1 += h3; h1 += h4;
+  h2 += h1; h3 += h1; h4 += h1;
+
+  ((uint32_t*)out)[0] = h1;
+  ((uint32_t*)out)[1] = h2;
+  ((uint32_t*)out)[2] = h3;
+  ((uint32_t*)out)[3] = h4;
+}
+
+//-----------------------------------------------------------------------------
+
diff --git a/plugins/experimental/collapsed_connection/MurmurHash3.h b/plugins/experimental/collapsed_connection/MurmurHash3.h
new file mode 100644
index 00000000..cf11c84c
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/MurmurHash3.h
@@ -0,0 +1,20 @@
+//-----------------------------------------------------------------------------
+// MurmurHash3 was written by Austin Appleby, and is placed in the public
+// domain. The author hereby disclaims copyright to this source code.
+
+#ifndef _MURMURHASH3_H_
+#define _MURMURHASH3_H_
+
+//-----------------------------------------------------------------------------
+#include <stdint.h>
+
+//-----------------------------------------------------------------------------
+
+void MurmurHash3_x86_32  ( const void * key, int len, uint32_t seed, void * out );
+
+void MurmurHash3_x86_128 ( const void * key, int len, uint32_t seed, void * out );
+
+//-----------------------------------------------------------------------------
+
+#endif // _MURMURHASH3_H_
+//-----------------------------------------------------------------------------
diff --git a/plugins/experimental/collapsed_connection/NOTICE b/plugins/experimental/collapsed_connection/NOTICE
new file mode 100644
index 00000000..6fef4b12
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/NOTICE
@@ -0,0 +1,9 @@
+=======================================================================
+NOTICE file for use with, and corresponding to Section 4 of,            
+the Apache License, Version 2.0,                                  
+in this case for the collapsed connection plugin project.               
+=======================================================================
+
+   This product includes software developed by
+   Yahoo! Inc. (www.yahoo.com)
+   Copyright (c) 2014 Yahoo! Inc.  All rights reserved.
diff --git a/plugins/experimental/collapsed_connection/P_collapsed_connection.h b/plugins/experimental/collapsed_connection/P_collapsed_connection.h
new file mode 100644
index 00000000..9e1f1596
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/P_collapsed_connection.h
@@ -0,0 +1,123 @@
+/** @file
+
+  Implements Collapsed connection
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdint.h>
+#include <map>
+#include <list>
+#include <utility>
+
+#ifndef ATS_COLLAPSED_CONNECTION_PLUGIN_H_
+#define ATS_COLLAPSED_CONNECTION_PLUGIN_H_
+
+#define PLUGIN_NAME     "collapsed_connection"
+#define PLUGIN_VENDOR   "Yahoo! Inc"
+#define PLUGIN_SUPPORT  "yzlai@yahoo-inc.com"
+
+#define DEFAULT_INSERT_LOCK_RETRY_TIME  10
+#define DEFAULT_MAX_LOCK_RETRY_TIMEOUT  2000
+#define DEFAULT_KEEP_PASS_RECORD_TIME   5000
+
+typedef enum
+{
+  CcEnabled,
+  CcRequiredHeader,
+  CcInsertLockRetryTime,
+  CcMaxLockRetryTimeout,
+  CcKeepPassRecordTime,
+} CcConfigKey;
+
+typedef enum
+{
+  CC_NONE,
+  CC_LOCKED,
+  CC_INSERT,
+  CC_PASS,
+  CC_PASSED,
+  CC_REMOVE,
+  CC_DONE,
+} CcTxnState;
+
+struct PassRecord
+{
+  int64_t timeout;
+  uint32_t hash_key;
+};
+
+typedef std::map<uint32_t, int8_t> UintMap;
+typedef std::list<PassRecord> UsecList;
+
+typedef struct
+{
+  bool enabled;
+  TSMgmtString required_header;
+  int required_header_len;
+  TSMgmtInt insert_lock_retry_time;
+  TSMgmtInt max_lock_retry_timeout;
+  TSMgmtInt keep_pass_record_time;
+} CcPluginConfig;
+
+typedef struct
+{
+  UintMap *active_hash_map;
+  TSMutex mutex;
+  uint64_t seq_id;
+  int txn_slot;
+  CcPluginConfig *global_config;
+  UsecList *keep_pass_list;
+  TSHRTime last_gc_time;
+  bool read_while_writer;
+  int tol_global_hook_reqs;
+  int tol_remap_hook_reqs;
+  int tol_collapsed_reqs;
+  int tol_non_cacheable_reqs;
+  int tol_got_passed_reqs;
+  int cur_hash_entries;
+  int cur_keep_pass_entries;
+  int max_hash_entries;
+  int max_keep_pass_entries;
+} CcPluginData;
+
+typedef struct
+{
+  uint64_t seq_id;
+  TSHttpTxn txnp;
+  TSCont contp;
+  CcPluginConfig *config;
+  uint32_t hash_key;
+  CcTxnState cc_state;
+  TSHRTime wait_time;
+} CcTxnData;
+
+typedef struct
+{
+  TSEvent event;
+  CcTxnData *txn_data;
+} TryLockData;
+
+// hash seed for MurmurHash3_x86_32, must be a prime number
+const unsigned int c_hashSeed = 27240313;
+
+static CcPluginData *getCcPlugin();
+static int collapsedConnectionMainHandler(TSCont contp, TSEvent event, void *edata);
+
+#endif // ATS_COLLAPSED_CONNECTION_PLUGIN_H_
diff --git a/plugins/experimental/collapsed_connection/README b/plugins/experimental/collapsed_connection/README
new file mode 100644
index 00000000..1eed6024
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/README
@@ -0,0 +1,71 @@
+ATS (Apache Traffic Server) Collapsed Connection Handling Plugin
+------------------------------------------------------------------------------
+
+This plugin collapses connections with identical CacheUrl/EffectiveUrl.
+
+If an entry was created for a given CacheUrl/EffectiveUrl in our global hashTable,
+successive GET requests with identical CacheUrl/EffectiveUrl will be blocked in 
+POST_REMAP hook until the hash entry was removed.  (POST_REMAP hook is the last 
+hook before 'cache lookup')
+
+For requests going into 'cache lookup' stage,
+  if CacheLookupStatus is HIT_FRESH,
+    hash entry will be removed at earliest possible time.
+
+For requests going into 'read server response header' stage,
+  if response is not 200 OK,
+    hash entry will be removed at earliest possible time.
+  if response is public cacheable, (by checking 'Expires' header and 'Cache-Control' header with 'public' & 'max-age=...' values),
+    if proxy.config.cache.enable_read_while_writer is enabled,
+      hash entry will be removed at earliest possible time.
+    else
+      hash entry will be removed in TXN_CLOSE hook. 
+  if response is not public cacheable,
+    we will update hash entry with a special value to let successive requests pass collapsed check,
+    this special hash entry will be removed in TXN_CLOSE hook if value of keep_pass_record_time is 0,
+    else it will be added into a list with timeout and removed by later collapsed requests.
+
+To view full state diagram, please view state.png
+
+
+CONFIGURATION
+
+To have trafficserver use this plugin, add a line for 'collapsed_connection.so' in the 'plugin.config' file.
+The plugin can be configured with only 1 argument, which is location of its configuration file.
+
+Example plugin.config:
+    collapsed_connection.so conf/collapsed_connection/check_X_CC_header.config
+
+This plugin can be added in remap.config as well.
+Thus, it can have different configurations or only be enabled/disabled for specific remap rules.
+If the only argument for this plugin is "0" or "1", it means just "disable" or "enable" this plugin with default config value.
+
+Example remap.config:
+    map http://no-collapse1.www.example.com/ http://www.example.com/ @plugin=connection_collapsing.so @pparam=0
+    map http://no-collapse2.www.example.com/ http://www.example.com/ @plugin=connection_collapsing.so @pparam=conf/collapsed_connection/disable.config
+
+Its configuration file can have 5 configurable options:
+    CONFIG proxy.config.http.collapsed_connection.enabled INT 1
+    CONFIG proxy.config.http.collapsed_connection.required_header STRING NULL
+    CONFIG proxy.config.http.collapsed_connection.insert_lock_retry_time INT 10
+    CONFIG proxy.config.http.collapsed_connection.max_lock_retry_timeout INT 2000
+    CONFIG proxy.config.http.collapsed_connection.keep_pass_record_time INT 5000
+
+Meaning of these configurable options:
+    enabled
+        enable collapsing or not, useful in remap rules if we want to disable/enable specific remap rules.
+    required_header
+        only collapse requests with 'required_header' http header present.
+    insert_lock_retry_time
+        if hash entry was locked, retry to get lock after insert_lock_retry_time millisecond.
+    max_lock_retry_timeout
+        if request was unable to get lock more than max_lock_retry_timeout millisecond, it will be unblocked anyway.
+    keep_pass_record_time
+        if response is not public cacheable,
+        the pass sentinel will be kept in hash table for at least keep_pass_record_time millisecond before be removed.
+
+
+3rd party open source code
+----------------------------------------------------------------------------------
+MurmurHash3 by Austin Appleby, https://code.google.com/p/smhasher/wiki/MurmurHash3
+   * Calculate hash key for CacheUrl
diff --git a/plugins/experimental/collapsed_connection/collapsed_connection.cc b/plugins/experimental/collapsed_connection/collapsed_connection.cc
new file mode 100644
index 00000000..9e62b0ff
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/collapsed_connection.cc
@@ -0,0 +1,1157 @@
+/** @file
+
+  Implements Collapsed connection
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+#include <ts/experimental.h>
+#include "MurmurHash3.h"
+#include <inttypes.h>
+
+#include "P_collapsed_connection.h"
+
+/**
+ * Helper function for the config parser
+ *  copied from plugins/conf_remap/conf_remap.cc
+ *
+ * @param const char *str config data type
+ *
+ * @return TSRecordDataType config data type
+ */
+inline TSRecordDataType
+str_to_datatype(const char *str)
+{
+  TSRecordDataType type = TS_RECORDDATATYPE_NULL;
+
+  if (!str || !*str)
+    return TS_RECORDDATATYPE_NULL;
+
+  if (!strcmp(str, "INT")) {
+    type = TS_RECORDDATATYPE_INT;
+  } else if (!strcmp(str, "STRING")) {
+    type = TS_RECORDDATATYPE_STRING;
+  }
+
+  return type;
+}
+
+/**
+ * Find collapsed_connection transaction config option
+ *  modified from InkAPI.cc:TSHttpTxnConfigFind
+ *
+ * @param const char       *name  name of config options
+ * @param int              length length of *name
+ * @param CcConfigKey      *conf  config key
+ * @param TSRecordDataType *type  config option data type
+ *
+ * @return CcTxnState hashEntry added, should be ignore and pass, or fail
+ */
+static TSReturnCode
+CcHttpTxnConfigFind(const char *name, int length, CcConfigKey * conf, TSRecordDataType * type)
+{
+  *type = TS_RECORDDATATYPE_NULL;
+
+  if (length == -1)
+    length = strlen(name);
+
+  switch (length) {
+  case 46:
+    if (!strncmp(name, "proxy.config.http.collapsed_connection.enabled", length)) {
+      *conf = CcEnabled;
+      *type = TS_RECORDDATATYPE_INT;
+    }
+    break;
+  case 54:
+    if (!strncmp(name, "proxy.config.http.collapsed_connection.required_header", length)) {
+      *conf = CcRequiredHeader;
+      *type = TS_RECORDDATATYPE_STRING;
+    }
+    break;
+  case 60:
+    if (!strncmp(name, "proxy.config.http.collapsed_connection.keep_pass_record_time", length)) {
+      *conf = CcKeepPassRecordTime;
+      *type = TS_RECORDDATATYPE_INT;
+    }
+    break;
+  case 61:
+    if (!strncmp(name, "proxy.config.http.collapsed_connection.insert_lock_retry_time", length)) {
+      *conf = CcInsertLockRetryTime;
+      *type = TS_RECORDDATATYPE_INT;
+    } else if (!strncmp(name, "proxy.config.http.collapsed_connection.max_lock_retry_timeout", length)) {
+      *conf = CcMaxLockRetryTimeout;
+      *type = TS_RECORDDATATYPE_INT;
+    }
+    break;
+  default:
+    break;
+  }
+
+  return ((*type != TS_RECORDDATATYPE_NULL) ? TS_SUCCESS : TS_ERROR);
+}
+
+/**
+ * Initial collapsed_connection plugin with config file
+ *  modified from plugins/conf_remap/conf_remap.cc, RemapConfigs::parse_file
+ *
+ * @param const char *fn filename of config file
+ *
+ * @return CcPluginConfig *config object
+ */
+static CcPluginConfig *
+initConfig(const char *fn)
+{
+  CcPluginData *plugin_data = getCcPlugin();
+  CcPluginConfig *config = static_cast < CcPluginConfig * >(TSmalloc(sizeof(CcPluginConfig)));
+
+  // Default config
+  if (NULL == plugin_data || NULL == plugin_data->global_config) {
+    config->enabled = true;
+    config->required_header = NULL;
+    config->insert_lock_retry_time = DEFAULT_INSERT_LOCK_RETRY_TIME;
+    config->max_lock_retry_timeout = DEFAULT_MAX_LOCK_RETRY_TIMEOUT;
+    config->keep_pass_record_time = DEFAULT_KEEP_PASS_RECORD_TIME;
+  } else {
+    // Inherit from global config
+    CcPluginConfig *global_config = plugin_data->global_config;
+
+    config->enabled = global_config->enabled;
+    config->required_header = TSstrdup(global_config->required_header);
+    config->insert_lock_retry_time = global_config->insert_lock_retry_time;
+    config->max_lock_retry_timeout = global_config->max_lock_retry_timeout;
+    config->keep_pass_record_time = global_config->keep_pass_record_time;
+  }
+
+  if (NULL != fn) {
+    if (1 == strlen(fn)) {
+      if (0 == strcmp("0", fn)) {
+        config->enabled = false;
+      } else if (0 == strcmp("1", fn)) {
+        config->enabled = true;
+      } else {
+        TSError("parameter '%s' ignored", fn);
+      }
+    } else {
+      int line_num = 0;
+      TSFile file;
+      char buf[8192];
+      CcConfigKey name;
+      TSRecordDataType type, expected_type;
+
+      if (NULL == (file = TSfopen(fn, "r"))) {
+        TSError("could not open config file %s", fn);
+      } else {
+        while (NULL != TSfgets(file, buf, sizeof(buf))) {
+          char *ln, *tok;
+          char *s = buf;
+
+          ++line_num;           // First line is #1 ...
+          while (isspace(*s))
+            ++s;
+          tok = strtok_r(s, " \t", &ln);
+
+          // check for blank lines and comments
+          if ((!tok) || (tok && ('#' == *tok)))
+            continue;
+
+          if (strncmp(tok, "CONFIG", 6)) {
+            TSError("file %s, line %d: non-CONFIG line encountered", fn, line_num);
+            continue;
+          }
+          // Find the configuration name
+          tok = strtok_r(NULL, " \t", &ln);
+          if (CcHttpTxnConfigFind(tok, -1, &name, &expected_type) != TS_SUCCESS) {
+            TSError("file %s, line %d: no records.config name given", fn, line_num);
+            continue;
+          }
+          // Find the type (INT or STRING only)
+          tok = strtok_r(NULL, " \t", &ln);
+          if (TS_RECORDDATATYPE_NULL == (type = str_to_datatype(tok))) {
+            TSError("file %s, line %d: only INT and STRING types supported", fn, line_num);
+            continue;
+          }
+
+          if (type != expected_type) {
+            TSError("file %s, line %d: mismatch between provide data type, and expected type", fn, line_num);
+            continue;
+          }
+          // Find the value (which depends on the type above)
+          if (ln) {
+            while (isspace(*ln))
+              ++ln;
+            if ('\0' == *ln) {
+              tok = NULL;
+            } else {
+              tok = ln;
+              while (*ln != '\0')
+                ++ln;
+              --ln;
+              while (isspace(*ln) && (ln > tok))
+                --ln;
+              ++ln;
+              *ln = '\0';
+            }
+          } else {
+            tok = NULL;
+          }
+          if (!tok) {
+            TSError("file %s, line %d: the configuration must provide a value", fn, line_num);
+            continue;
+          }
+          // Now store the new config
+          switch (name) {
+          case CcRequiredHeader:
+            if (NULL != config->required_header) {
+              TSfree(config->required_header);
+            }
+            if (4 == strlen(tok) && 0 == strcmp(tok, "NULL")) {
+              config->required_header = NULL;
+            } else {
+              config->required_header = TSstrdup(tok);
+            }
+            break;
+          case CcEnabled:
+            config->enabled = strtoll(tok, NULL, 10);
+            break;
+          case CcInsertLockRetryTime:
+            config->insert_lock_retry_time = strtoll(tok, NULL, 10);
+            break;
+          case CcMaxLockRetryTimeout:
+            config->max_lock_retry_timeout = strtoll(tok, NULL, 10);
+            break;
+          case CcKeepPassRecordTime:
+            config->keep_pass_record_time = strtoll(tok, NULL, 10);
+            break;
+          default:
+            break;
+          }
+        }
+
+        TSfclose(file);
+      }
+    }
+  }
+  if (config->required_header) {
+    config->required_header_len = strlen(config->required_header);
+  } else {
+    config->required_header_len = 0;
+  }
+
+  TSDebug(PLUGIN_NAME, "enabled = %d", static_cast < int >(config->enabled));
+  TSDebug(PLUGIN_NAME, "required_header = %s", config->required_header);
+  TSDebug(PLUGIN_NAME, "insert_lock_retry_time = %d", static_cast < int >(config->insert_lock_retry_time));
+  TSDebug(PLUGIN_NAME, "max_lock_retry_timeout = %d", static_cast < int >(config->max_lock_retry_timeout));
+  TSDebug(PLUGIN_NAME, "keep_pass_record_time = %d", static_cast < int >(config->keep_pass_record_time));
+
+  return config;
+}
+
+/**
+ * Update and get current size in map
+ *  it's ok to use static variable here because already protected by plugin_data->mutex
+ *
+ * @param UintMap *map Hash Map
+ *
+ * @return int64_t current Hash Map size
+ */
+static int64_t
+getCurrentHashEntries(UintMap * map)
+{
+  static int64_t cur = 0;
+  static int64_t max = 0;
+  int64_t size = map->size();
+  int64_t diff = size - cur;
+
+  cur = size;
+  if (diff != 0) {
+    CcPluginData *plugin_data = getCcPlugin();
+
+    TSStatIntSet(plugin_data->cur_hash_entries, cur);
+    if (cur > max) {
+      TSStatIntSet(plugin_data->max_hash_entries, cur);
+      max = cur;
+    }
+  }
+
+  return cur;
+}
+
+/**
+ * Update and get current size in list
+ *  it's ok to use static variable here because already protected by plugin_data->mutex
+ *
+ * @param UsecList *list List
+ *
+ * @return int64_t current List size
+ */
+static int64_t
+getCurrentKeepPassEntries(UsecList * list)
+{
+  CcPluginData *plugin_data = getCcPlugin();
+  static int64_t cur = 0;
+  static int64_t max = 0;
+  int64_t size = list->size();
+  int64_t diff = size - cur;
+
+  cur = size;
+  if (diff != 0) {
+    TSStatIntSet(plugin_data->cur_keep_pass_entries, cur);
+    if (cur > max) {
+      TSStatIntSet(plugin_data->max_keep_pass_entries, cur);
+      max = cur;
+    }
+  }
+
+  return cur;
+}
+
+/**
+ * Add Or Check keep pass records from list
+ *
+ * @param uint32_t hash_key new hash_key to add
+ * @param int64_t  timeout  timeout of this record
+ *
+ * @return TSReturnCode success or not
+ */
+static TSReturnCode
+addOrCheckKeepPassRecords(uint32_t hash_key, int64_t timeout)
+{
+  CcPluginData *plugin_data = getCcPlugin();
+  UintMap *active_hash_map = plugin_data->active_hash_map;
+  UsecList *keep_pass_list = plugin_data->keep_pass_list;
+  std::list < PassRecord >::iterator it;
+  PassRecord passRecord;
+  bool added = true;
+  TSHRTime cur_ms = TShrtime() / TS_HRTIME_MSECOND;     // TS-2200, ats_dev-4.1+
+
+  // Only gc per 0.1ms
+  if (0 == hash_key && timeout == 0) {
+    if (cur_ms - plugin_data->last_gc_time < 100) {
+      return TS_SUCCESS;
+    }
+  }
+
+  passRecord.timeout = cur_ms + timeout;
+  passRecord.hash_key = hash_key;
+
+  if (hash_key > 0) {
+    bool push_back = false;
+
+    if (keep_pass_list->empty()) {
+      push_back = true;
+    } else {
+      PassRecord & lastRecord = *(keep_pass_list->end());
+
+      if (lastRecord.timeout <= passRecord.timeout) {
+        push_back = true;
+      }
+    }
+
+    if (push_back) {
+      keep_pass_list->push_back(passRecord);
+      getCurrentKeepPassEntries(keep_pass_list);
+      TSDebug(PLUGIN_NAME,
+              "push_back pass entry with timeout = %zd, hash_key = %u", passRecord.timeout, passRecord.hash_key);
+    } else {
+      added = false;
+    }
+  }
+
+  for (it = keep_pass_list->begin(); it != keep_pass_list->end(); ++it) {
+    PassRecord & thisRecord = *it;
+
+    if (thisRecord.timeout <= cur_ms) {
+      UintMap::iterator pos = active_hash_map->find(thisRecord.hash_key);
+      if (pos != active_hash_map->end()) {
+        active_hash_map->erase(pos);
+        getCurrentHashEntries(active_hash_map);
+      }
+      keep_pass_list->erase(it++);
+      getCurrentKeepPassEntries(keep_pass_list);
+      TSDebug(PLUGIN_NAME,
+              "remove pass entry with timeout = %zd, hash_key = %u", thisRecord.timeout, thisRecord.hash_key);
+    } else if (false == added) {
+      if (thisRecord.timeout >= passRecord.timeout) {
+        keep_pass_list->insert(it, passRecord);
+        getCurrentKeepPassEntries(keep_pass_list);
+        TSDebug(PLUGIN_NAME,
+                "insert pass entry with timeout = %zd, hash_key = %u", passRecord.timeout, passRecord.hash_key);
+        added = true;
+        break;
+      }
+    } else {
+      break;
+    }
+  }
+  plugin_data->last_gc_time = cur_ms;
+
+  return TS_SUCCESS;
+}
+
+/**
+ * Insert new hashEntry into hashTable
+ *
+ * @param CcTxnData *txn_data transaction data
+ *
+ * @return CcTxnState hashEntry added, should be ignore and pass, or fail
+ */
+static CcTxnState
+insertNewHashEntry(CcTxnData * txn_data)
+{
+  CcPluginData *plugin_data = getCcPlugin();
+  CcTxnState ret = CC_NONE;
+  UintMap *active_hash_map = plugin_data->active_hash_map;
+
+  if (0 == txn_data->hash_key) {
+    return ret;
+  }
+
+  if (TS_SUCCESS == TSMutexLockTry(plugin_data->mutex)) {
+    std::pair < std::map < uint32_t, int8_t >::iterator, bool > map_ret;
+    int64_t size = 0;
+    addOrCheckKeepPassRecords(0, 0);
+    map_ret = active_hash_map->insert(std::make_pair(txn_data->hash_key, CC_INSERT));
+    size = getCurrentHashEntries(active_hash_map);
+    TSMutexUnlock(plugin_data->mutex);
+    if (false != map_ret.second) {
+      TSDebug(PLUGIN_NAME, "[%" PRIu64 "] hash_key inserted, active_hash_map.size = %zd", txn_data->seq_id, size);
+      ret = CC_INSERT;
+    } else if (CC_PASS == map_ret.first->second) {
+      TSDebug(PLUGIN_NAME, "hash value = %d, previous request mark it non-cacheable", map_ret.first->second);
+      ret = CC_PASS;
+    } else {
+      TSDebug(PLUGIN_NAME, "hash value = %d, hash_key already exists, wait next schedule", map_ret.first->second);
+      ret = CC_LOCKED;
+    }
+  } else {
+    TSDebug(PLUGIN_NAME, "[%" PRIu64 "] Unable to get mutex", txn_data->seq_id);
+  }
+
+  if (CC_INSERT != ret && CC_PASS != ret) {
+    TSHRTime cur_ms = TShrtime() / TS_HRTIME_MSECOND;   // TS-2200, ats_dev-4.1+
+
+    if (0 == txn_data->wait_time) {
+      txn_data->wait_time = cur_ms;
+    } else if (cur_ms - txn_data->wait_time > txn_data->config->max_lock_retry_timeout) {
+      txn_data->wait_time = cur_ms - txn_data->wait_time;
+      // Pass cache lock
+      ret = CC_PASS;
+      TSDebug(PLUGIN_NAME, "timeout (%zd > %d), pass plugin",
+              txn_data->wait_time, static_cast < int32_t > (txn_data->config->max_lock_retry_timeout));
+    }
+  } else if (0 != txn_data->wait_time) {
+    txn_data->wait_time = TShrtime() / 1000000 - txn_data->wait_time;
+    TSDebug(PLUGIN_NAME, "waited for %zd ms", txn_data->wait_time);
+  }
+
+  return ret;
+}
+
+/**
+ * Update or remove hashEntry from hashTable
+ *
+ * @param CcTxnData *txn_data transaction data
+ *
+ * @return TSReturnCode Success or failure
+ */
+static TSReturnCode
+updateOrRemoveHashEntry(CcTxnData * txn_data)
+{
+  TSReturnCode ret = TS_ERROR;
+  CcPluginData *plugin_data = getCcPlugin();
+  UintMap *active_hash_map = plugin_data->active_hash_map;
+
+  if (0 == txn_data->hash_key || CC_PASSED == txn_data->cc_state) {
+    return TS_SUCCESS;
+  }
+
+  if (CC_PASS != txn_data->cc_state && CC_REMOVE != txn_data->cc_state) {
+    return ret;
+  }
+
+  if (TS_SUCCESS == TSMutexLockTry(plugin_data->mutex)) {
+    UintMap::iterator pos = active_hash_map->find(txn_data->hash_key);
+    int64_t size = 0;
+    if (pos != active_hash_map->end()) {
+      active_hash_map->erase(pos);
+    }
+    if (CC_PASS == txn_data->cc_state) {
+      active_hash_map->insert(std::make_pair(txn_data->hash_key, CC_PASS));
+      addOrCheckKeepPassRecords(txn_data->hash_key, txn_data->config->keep_pass_record_time);
+      size = getCurrentHashEntries(active_hash_map);
+      TSMutexUnlock(plugin_data->mutex);
+
+      TSDebug(PLUGIN_NAME, "[%" PRIu64 "] hashEntry updated, active_hash_map.size = %zd", txn_data->seq_id, size);
+      txn_data->cc_state = CC_PASSED;
+    } else {
+      addOrCheckKeepPassRecords(0, 0);
+      size = getCurrentHashEntries(active_hash_map);
+      TSMutexUnlock(plugin_data->mutex);
+
+      TSDebug(PLUGIN_NAME, "[%" PRIu64 "] hashEntry removed, active_hash_map.size = %zd", txn_data->seq_id, size);
+      txn_data->cc_state = CC_DONE;
+    }
+    ret = TS_SUCCESS;
+  } else {
+    TSDebug(PLUGIN_NAME, "[%" PRIu64 "] Unable to get mutex", txn_data->seq_id);
+  }
+
+  return ret;
+}
+
+/**
+ * Get hash_key from CacheUrl
+ *
+ * @param TSHttpTxn txnp    Transaction ptr
+ * @param TSMBuffer bufp    TS memory buffer
+ * @param TSMLoc    hdr_loc TS memory loc
+ *
+ * @return uint32_t hash_key
+ */
+static uint32_t
+getCacheUrlHashKey(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc /* hdr_loc ATS_UNUSED */)
+{
+  TSMLoc url_loc = TS_NULL_MLOC;
+  int url_len;
+  char *url = NULL;
+  uint32_t hash_key = 0;
+
+  if (TS_SUCCESS != TSUrlCreate(bufp, &url_loc)) {
+    TSDebug(PLUGIN_NAME, "unable to create url");
+    return 0;
+  }
+
+  if (TS_SUCCESS == TSHttpTxnCacheLookupUrlGet(txnp, bufp, url_loc)) {
+    url = TSUrlStringGet(bufp, url_loc, &url_len);
+  } else {
+    TSDebug(PLUGIN_NAME, "use EffectiveUrl as CacheLookupUrl instead");
+    url = TSHttpTxnEffectiveUrlStringGet(txnp, &url_len);
+  }
+
+  MurmurHash3_x86_32(url, url_len, c_hashSeed, &hash_key);
+  TSDebug(PLUGIN_NAME, "CacheLookupUrl = %s, hash_key = %u", url, hash_key);
+  TSfree(url);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, url_loc);
+
+  return hash_key;
+}
+
+/**
+ * Is response public cacheable or not
+ *  try to find Expires and Cache-Control: public, max-age=... headers from server response
+ *
+ * @param TSMBuffer bufp    TS memory buffer
+ * @param TSMLoc    hdr_loc TS memory loc
+ *
+ * @return bool
+ */
+static bool
+isResponseCacheable(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  bool cacheable = false;
+  bool found_public = false;
+  bool found_maxage = false;
+  bool found_expire = false;
+  TSMLoc field_loc = TS_NULL_MLOC;
+
+  if (0 != (field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_EXPIRES, TS_MIME_LEN_EXPIRES))) {
+    found_expire = true;
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  }
+
+  if (0 != (field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_CACHE_CONTROL, TS_MIME_LEN_CACHE_CONTROL))) {
+    int field_cnt = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+
+    for (int i = 0; i < field_cnt; i++) {
+      int len = 0;
+      const char *val = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, i, &len);
+      if (0 == i) {
+        TSDebug(PLUGIN_NAME, "Cache-Control: %s", val);
+      }
+      if (len == TS_HTTP_LEN_PUBLIC && 0 == strncasecmp(val, TS_HTTP_VALUE_PUBLIC, TS_HTTP_LEN_PUBLIC)) {
+        found_public = true;
+      }
+      if (len > TS_HTTP_LEN_MAX_AGE && 0 == strncasecmp(val, TS_HTTP_VALUE_MAX_AGE, TS_HTTP_LEN_MAX_AGE)) {
+        found_maxage = true;
+      }
+    }
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  }
+
+  if (found_public && (found_expire || found_maxage)) {
+    TSDebug(PLUGIN_NAME, "Response is public cacheable");
+    cacheable = true;
+  } else {
+    TSDebug(PLUGIN_NAME, "Response is non-cacheable");
+  }
+
+  return cacheable;
+}
+
+/**
+ * Retry CacheUrl lock event handler
+ *
+ * @param TSCont  contp  Continuation ptr
+ * @param TSEvent event  TS event
+ * @param void    *edata event Data
+ *
+ * @return int
+ */
+static int
+retryCacheUrlLock(TSCont contp, TSEvent /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  TryLockData *data = reinterpret_cast < TryLockData * >(TSContDataGet(contp));
+  TSDebug(PLUGIN_NAME, "[%" PRIu64 "] event = %d retry", data->txn_data->seq_id, data->event);
+  collapsedConnectionMainHandler(NULL, data->event, data->txn_data->txnp);
+  TSfree(data);
+  TSContDataSet(contp, NULL);
+  TSContDestroy(contp);
+
+  return 0;
+}
+
+/**
+ * Add TS Cont Schedule to retry mutex lock/update
+ *
+ * @param CcTxnData *txn_data transaction data
+ * @param TSEvent   event     TS Event
+ * @param TSHRTime  timeout   schedule timeout
+ *
+ * @return void
+ */
+static void
+addMutexRetry(CcTxnData * txn_data, TSEvent event, TSHRTime timeout)
+{
+  TSCont contp = TSContCreate(retryCacheUrlLock, NULL);
+  TryLockData *data = static_cast < TryLockData * >(TSmalloc(sizeof(TryLockData)));
+
+  data->event = event;
+  data->txn_data = txn_data;
+  TSContDataSet(contp, data);
+  TSContSchedule(contp, timeout, TS_THREAD_POOL_DEFAULT);
+}
+
+/**
+ * Try to get Collapsed Connection transaction data
+ *  if is first entry hook, allocate it
+ *  else try to get it back from TxnArg
+ *
+ * @param TSHttpTxn txnp   Transaction ptr
+ * @param bool      create Should create new CcTxnData if NULL
+ * @param bool      remap  Calling from remap
+ *
+ * @return *CcTxnData
+ */
+static CcTxnData *
+getCcTxnData(TSHttpTxn txnp, bool create, bool remap)
+{
+  CcPluginData *plugin_data = getCcPlugin();
+  CcTxnData *txn_data = NULL;
+
+  txn_data = reinterpret_cast < CcTxnData * >(TSHttpTxnArgGet(txnp, plugin_data->txn_slot));
+  if (NULL == txn_data && true == create) {
+    txn_data = static_cast < CcTxnData * >(TSmalloc(sizeof(CcTxnData)));
+    txn_data->config = plugin_data->global_config;
+    txn_data->seq_id = plugin_data->seq_id++;
+    txn_data->txnp = txnp;
+    txn_data->contp = NULL;
+    txn_data->hash_key = 0;
+    txn_data->cc_state = CC_NONE;
+    txn_data->wait_time = 0;
+    TSHttpTxnArgSet(txnp, plugin_data->txn_slot, txn_data);
+    if (remap) {
+      TSStatIntIncrement(plugin_data->tol_remap_hook_reqs, 1);
+    } else {
+      TSStatIntIncrement(plugin_data->tol_global_hook_reqs, 1);
+    }
+    TSDebug(PLUGIN_NAME, "txn_data created, active_hash_map.size = %zu", plugin_data->active_hash_map->size());
+  }
+
+  return txn_data;
+}
+
+/**
+ * Free Collapsed Connection transaction data
+ *
+ * @param CcTxnData *txn_data transaction data
+ *
+ * @return void
+ */
+static void
+freeCcTxnData(CcTxnData * txn_data)
+{
+  CcPluginData *plugin_data = getCcPlugin();
+
+  if (txn_data->contp) {
+    TSContDataSet(txn_data->contp, NULL);
+    TSContDestroy(txn_data->contp);
+  }
+  if (txn_data->txnp) {
+    TSHttpTxnArgSet(txn_data->txnp, plugin_data->txn_slot, NULL);
+    TSHttpTxnReenable(txn_data->txnp, TS_EVENT_HTTP_CONTINUE);
+  }
+  TSDebug(PLUGIN_NAME, "[%" PRIu64 "] txn_data released", txn_data->seq_id);
+  TSfree(txn_data);
+}
+
+/**
+ * Lookup CacheUrl in hashTable and lock it in hashTable for collapsed connection
+ *
+ * @param CcTxnData *txn_data transaction data
+ * @param TSEvent   event     TS event
+ *
+ * @return TSReturnCode
+ */
+static TSReturnCode
+lookupAndTryLockCacheUrl(CcTxnData * txn_data, TSEvent event)
+{
+  CcTxnState ret;
+  CcPluginData *plugin_data = getCcPlugin();
+
+  if (0 == txn_data->hash_key) {
+    // New request, check is GET method and gen hash_key
+    TSMBuffer bufp = (TSMBuffer) NULL;
+    TSMLoc hdr_loc = TS_NULL_MLOC;
+    int method_len;
+    const char *method = NULL;
+
+    if (TS_SUCCESS != TSHttpTxnClientReqGet(txn_data->txnp, &bufp, &hdr_loc)) {
+      TSDebug(PLUGIN_NAME, "unable to get client request");
+      freeCcTxnData(txn_data);
+      return TS_ERROR;
+    }
+
+    if (txn_data->config->required_header_len > 0) {
+      TSMLoc field_loc = TSMimeHdrFieldFind(bufp,
+                                            hdr_loc,
+                                            txn_data->config->required_header,
+                                            txn_data->config->required_header_len);
+      if (!field_loc) {
+        TSDebug(PLUGIN_NAME, "%s header not found, ignore it", txn_data->config->required_header);
+        TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+        freeCcTxnData(txn_data);
+        return TS_SUCCESS;
+      }
+      TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    }
+
+    method = TSHttpHdrMethodGet(bufp, hdr_loc, &method_len);
+    if (TS_HTTP_LEN_GET != method_len || 0 != memcmp(method, TS_HTTP_METHOD_GET, TS_HTTP_LEN_GET)) {
+      TSDebug(PLUGIN_NAME, "method is not GET, ignore it");
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+      freeCcTxnData(txn_data);
+      return TS_SUCCESS;
+    }
+
+    txn_data->hash_key = getCacheUrlHashKey(txn_data->txnp, bufp, hdr_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    if (0 == txn_data->hash_key) {
+      freeCcTxnData(txn_data);
+      return TS_ERROR;
+    }
+    TSStatIntIncrement(plugin_data->tol_collapsed_reqs, 1);
+  }
+
+  /*
+   * CC_NONE:   unable to get mutex, try next time
+   * CC_PASS:   previous request mark it non-cacheable, pass, do NOT collapse
+   * CC_LOCKED: hash entry found, wait for release
+   * CC_INSERT: hash entry added, must remove it after receiving response
+   */
+  ret = insertNewHashEntry(txn_data);
+  if (CC_NONE == ret || CC_LOCKED == ret) {
+    addMutexRetry(txn_data, event, txn_data->config->insert_lock_retry_time);
+  } else if (CC_PASS == ret) {
+    TSStatIntIncrement(plugin_data->tol_got_passed_reqs, 1);
+    freeCcTxnData(txn_data);
+  } else if (CC_INSERT == ret) {
+    if (!txn_data->contp) {
+      // txn contp is already created from remap, but only global contp for global hook
+      txn_data->contp = TSContCreate(collapsedConnectionMainHandler, NULL);
+    }
+    txn_data->cc_state = ret;
+    TSHttpTxnHookAdd(txn_data->txnp, TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, txn_data->contp);
+    TSHttpTxnHookAdd(txn_data->txnp, TS_HTTP_READ_RESPONSE_HDR_HOOK, txn_data->contp);
+    TSHttpTxnHookAdd(txn_data->txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_data->contp);
+    TSHttpTxnReenable(txn_data->txnp, TS_EVENT_HTTP_CONTINUE);
+  } else {
+    TSAssert(!"Unexpected return code");
+  }
+
+  return TS_SUCCESS;
+}
+
+/**
+ * Test origin server response is STATUS_OK & Cacheable or not
+ *  if ! STATUS_OK, try to remove it from hashTable
+ *  if ! cacheable, try to mark it uncacheable in hashTable to let further request pass
+ *  if read_while_writer, try to remove it from hashTable
+ *
+ * @param CcTxnData *txn_data transaction data
+ *
+ * @return TSReturnCode
+ */
+static TSReturnCode
+testResponseCacheable(CcTxnData * txn_data)
+{
+  TSMBuffer bufp = (TSMBuffer) NULL;
+  TSMLoc hdr_loc = TS_NULL_MLOC;
+  TSHttpStatus resp_status;
+
+  if (0 == txn_data->hash_key) {
+    return TS_ERROR;
+  }
+
+  if (TS_SUCCESS != TSHttpTxnServerRespGet(txn_data->txnp, &bufp, &hdr_loc)) {
+    TSDebug(PLUGIN_NAME, "unable to get server response");
+    return TS_ERROR;
+  }
+  resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+
+  if (TS_HTTP_STATUS_OK != resp_status) {
+    TSDebug(PLUGIN_NAME, "[%" PRIu64 "] response status is not 200 OK, ignore it", txn_data->seq_id);
+    txn_data->cc_state = CC_REMOVE;
+  } else {
+    CcPluginData *plugin_data = getCcPlugin();
+    if (!isResponseCacheable(bufp, hdr_loc)) {
+      TSDebug(PLUGIN_NAME, "[%" PRIu64 "] response is not public cacheable, let all requests pass", txn_data->seq_id);
+
+      txn_data->cc_state = CC_PASS;
+      TSStatIntIncrement(plugin_data->tol_non_cacheable_reqs, 1);
+    } else if (plugin_data->read_while_writer) {
+      txn_data->cc_state = CC_REMOVE;
+    }
+  }
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+  if (CC_PASS == txn_data->cc_state || CC_REMOVE == txn_data->cc_state) {
+    if (TS_SUCCESS != updateOrRemoveHashEntry(txn_data)) {
+      // It's ok to unable to update/remove it here, can update it at next stage
+      TSHttpTxnHookAdd(txn_data->txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, txn_data->contp);
+    }
+  }
+
+  return TS_SUCCESS;
+}
+
+/**
+ * Test cache lookup result is hit_fresh or not
+ *  if hit_fresh, try to remove it from hashTable
+ *
+ * @param CcTxnData *txn_data transaction data
+ *
+ * @return TSReturnCode
+ */
+static TSReturnCode
+testCacheLookupResult(CcTxnData * txn_data)
+{
+  int status = 0;
+
+  if (TS_SUCCESS != TSHttpTxnCacheLookupStatusGet(txn_data->txnp, &status)) {
+    TSDebug(PLUGIN_NAME, "unable to get cache lookup result");
+    return TS_ERROR;
+  }
+
+  if (TS_CACHE_LOOKUP_HIT_FRESH == status || TS_CACHE_LOOKUP_SKIPPED == status) {
+    if (TS_CACHE_LOOKUP_HIT_FRESH == status) {
+      TSDebug(PLUGIN_NAME, "[%" PRIu64 "] cache lookup hit fresh", txn_data->seq_id);
+    } else if (TS_CACHE_LOOKUP_SKIPPED == status) {
+      // client request is not lookupable(no-cache) or in proxy mode only
+      TSDebug(PLUGIN_NAME, "[%" PRIu64 "] cache lookup skipped", txn_data->seq_id);
+    }
+    txn_data->cc_state = CC_REMOVE;
+    // whether success or not, we'll remove it at TXN_CLOSE stage anyway
+    updateOrRemoveHashEntry(txn_data);
+  }
+
+  return TS_SUCCESS;
+}
+
+/**
+ * CollapsedConnection event handler
+ *
+ * @param TSCont  contp  Continuation ptr
+ * @param TSEvent event  TS event
+ * @param void    *edata TS Http transaction
+ *
+ * @return int
+ */
+static int
+collapsedConnectionMainHandler(TSCont /* contp ATS_UNUSED */, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = reinterpret_cast < TSHttpTxn > (edata);
+  CcTxnData *txn_data = getCcTxnData(txnp, TS_EVENT_HTTP_POST_REMAP == event, false);
+
+  if (NULL != txn_data) {
+    TSDebug(PLUGIN_NAME,
+            "[%" PRIu64 "], event = %d, txn_data-> hash_key = %u, cc_state = %d",
+            txn_data->seq_id, event, txn_data->hash_key, txn_data->cc_state);
+
+    switch (event) {
+    case TS_EVENT_HTTP_POST_REMAP:
+      // hook in global but disabled in remap
+      if (0 == txn_data->config->enabled) {
+        freeCcTxnData(txn_data);
+        return TS_SUCCESS;
+      }
+      lookupAndTryLockCacheUrl(txn_data, event);
+      break;
+    case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+      testCacheLookupResult(txn_data);
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      break;
+    case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+      testResponseCacheable(txn_data);
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      break;
+    case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+      // whether success or not, we'll remove it at TXN_CLOSE stage anyway
+      updateOrRemoveHashEntry(txn_data);
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      break;
+    case TS_EVENT_HTTP_TXN_CLOSE:
+      if (CC_DONE == txn_data->cc_state) {
+        freeCcTxnData(txn_data);
+        TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      } else if (CC_PASS == txn_data->cc_state || CC_PASSED == txn_data->cc_state) {
+        // keep pass sentinel for config->keep_pass_record_time
+        if (txn_data->config->keep_pass_record_time > 0) {
+          if (CC_PASS == txn_data->cc_state && TS_SUCCESS != updateOrRemoveHashEntry(txn_data)) {
+            addMutexRetry(txn_data, event, 0);
+          } else {
+            freeCcTxnData(txn_data);
+          }
+        } else {
+          txn_data->cc_state = CC_REMOVE;
+        }
+      }
+      if (CC_INSERT == txn_data->cc_state || CC_REMOVE == txn_data->cc_state) {
+        txn_data->cc_state = CC_REMOVE;
+        if (TS_SUCCESS == updateOrRemoveHashEntry(txn_data)) {
+          freeCcTxnData(txn_data);
+        } else {
+          // We're at the last stage, must remove hashEntry anyway
+          addMutexRetry(txn_data, event, 0);
+        }
+      }
+      break;
+    default:
+      TSAssert(!"Unexpected event");
+      break;
+    }
+  } else {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  }
+
+  return 0;
+}
+
+/**
+ * Try to get Collapsed Connection plugin data
+ *  if is first entry hook, allocate it
+ *
+ * @return *CcPluginData
+ */
+static CcPluginData *
+getCcPlugin()
+{
+  static CcPluginData *data = NULL;
+
+  if (NULL == data) {
+    TSMgmtInt read_while_writer = 0;
+    data = static_cast < CcPluginData * >(TSmalloc(sizeof(CcPluginData)));
+    data->mutex = TSMutexCreate();
+    data->active_hash_map = new UintMap();
+    data->keep_pass_list = new UsecList();
+    data->seq_id = 0;
+    data->global_config = NULL;
+    TSHttpArgIndexReserve(PLUGIN_NAME, "reserve txn_data slot", &(data->txn_slot));
+
+    if (TS_SUCCESS == TSMgmtIntGet("proxy.config.cache.enable_read_while_writer",
+                                   &read_while_writer) && read_while_writer > 0) {
+      data->read_while_writer = true;
+    }
+
+    data->tol_global_hook_reqs =
+      TSStatCreate("collapsed_connection.total.global.reqs",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->tol_remap_hook_reqs =
+      TSStatCreate("collapsed_connection.total.remap.reqs",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->tol_collapsed_reqs =
+      TSStatCreate("collapsed_connection.total.collapsed.reqs",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->tol_non_cacheable_reqs =
+      TSStatCreate("collapsed_connection.total.noncacheable.reqs",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->tol_got_passed_reqs =
+      TSStatCreate("collapsed_connection.total.got_passed.reqs",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->cur_hash_entries =
+      TSStatCreate("collapsed_connection.current.hash.entries",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->cur_keep_pass_entries =
+      TSStatCreate("collapsed_connection.current.keep_pass.entries",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->max_hash_entries =
+      TSStatCreate("collapsed_connection.max.hash.entries",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+    data->max_keep_pass_entries =
+      TSStatCreate("collapsed_connection.max.keep_pass.entries",
+                   TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM);
+  }
+
+  return data;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the TSRemapAPI plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface * api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[TSRemapInit] - Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    strncpy(errbuf, "[TSRemapInit] - Incorrect size of TSRemapInterface structure", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapInit] - Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  CcPluginData *plugin_data = getCcPlugin();
+
+  TSDebug(PLUGIN_NAME, "Remap plugin is succesfully initialized, txn_slot = %d", plugin_data->txn_slot);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void **ih, char *, int)
+{
+  if (argc > 2) {
+    *ih = static_cast < CcPluginConfig * >(initConfig(argv[2]));
+  } else {
+    *ih = static_cast < CcPluginConfig * >(initConfig(NULL));
+  }
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void *ih)
+{
+  CcPluginConfig *config = static_cast < CcPluginConfig * >(ih);
+
+  if (NULL != config->required_header) {
+    TSfree(config->required_header);
+  }
+
+  TSfree(config);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// This is the main "entry" point for the plugin, called for every request.
+//
+TSRemapStatus
+TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo * /* rri ATS_UNUSED */)
+{
+  TSHttpTxn txnp = static_cast < TSHttpTxn > (rh);
+  CcPluginData *plugin_data = getCcPlugin();
+  CcTxnData *txn_data = getCcTxnData(txnp, true, true);
+
+  txn_data->config = reinterpret_cast < CcPluginConfig * >(ih);
+
+  if (!plugin_data->global_config || !plugin_data->global_config->enabled) {
+    if (txn_data->config->enabled) {
+      TSCont contp = TSContCreate(collapsedConnectionMainHandler, NULL);
+      TSHttpTxnHookAdd(txnp, TS_HTTP_POST_REMAP_HOOK, contp);
+
+      txn_data->contp = contp;
+      TSHttpTxnArgSet(txnp, plugin_data->txn_slot, txn_data);
+    } else {
+      // global & remap were both disabled
+      txn_data->txnp = NULL;
+      freeCcTxnData(txn_data);
+    }
+  } else {
+    // if globally enabled, set txn_data for remap config
+    TSHttpTxnArgSet(txnp, plugin_data->txn_slot, txn_data);
+  }
+
+  return TSREMAP_NO_REMAP;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the TSAPI plugin for the global hooks we support.
+//
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+  TSMgmtInt http_cache = 0;
+  TSCont contp = NULL;
+
+  info.plugin_name = const_cast < char *>(PLUGIN_NAME);
+  info.vendor_name = const_cast < char *>(PLUGIN_VENDOR);
+  info.support_email = const_cast < char *>(PLUGIN_SUPPORT);
+
+  if (TS_SUCCESS != TSPluginRegister(TS_SDK_VERSION_3_0, &info)) {
+    TSError("Plugin registration failed");
+    return;
+  }
+
+  if (TS_SUCCESS != TSMgmtIntGet("proxy.config.http.cache.http", &http_cache) || 0 == http_cache) {
+    TSError("Http cache is disabled, plugin would not work");
+    return;
+  }
+
+  if (!(contp = TSContCreate(collapsedConnectionMainHandler, NULL))) {
+    TSError("Could not create continuation");
+    return;
+  }
+
+  CcPluginData *plugin_data = getCcPlugin();
+  if (argc > 1) {
+    plugin_data->global_config = initConfig(argv[1]);
+  } else {
+    plugin_data->global_config = initConfig(NULL);
+  }
+
+  if (plugin_data->global_config->enabled) {
+    // Last API hook before cache lookup
+    TSHttpHookAdd(TS_HTTP_POST_REMAP_HOOK, contp);
+    TSDebug(PLUGIN_NAME, "TS_HTTP_POST_REMAP_HOOK added, txn_slot = %d", plugin_data->txn_slot);
+  } else {
+    TSDebug(PLUGIN_NAME, "plugin generally disabled");
+  }
+}
diff --git a/plugins/experimental/collapsed_connection/default.config b/plugins/experimental/collapsed_connection/default.config
new file mode 100644
index 00000000..ce37b716
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/default.config
@@ -0,0 +1,5 @@
+CONFIG proxy.config.http.collapsed_connection.enabled INT 1
+CONFIG proxy.config.http.collapsed_connection.required_header STRING NULL
+CONFIG proxy.config.http.collapsed_connection.insert_lock_retry_time INT 10
+CONFIG proxy.config.http.collapsed_connection.max_lock_retry_timeout INT 2000
+CONFIG proxy.config.http.collapsed_connection.keep_pass_record_time INT 5000
diff --git a/plugins/experimental/collapsed_connection/state.dot b/plugins/experimental/collapsed_connection/state.dot
new file mode 100644
index 00000000..5ce368e0
--- /dev/null
+++ b/plugins/experimental/collapsed_connection/state.dot
@@ -0,0 +1,40 @@
+digraph collapsed_connection {
+  accept -> TS_HTTP_POST_REMAP_HOOK;
+  TS_HTTP_POST_REMAP_HOOK -> "check request method (and header)";
+
+  "check request method (and header)" -> "get CacheUrl hash_key using MurmurHash3" [label = "GET request (required_header present)"];
+  "check request method (and header)" -> "pass request" [label = "others"];
+  "get CacheUrl hash_key using MurmurHash3" -> "check hash_key from hashTable";
+  "check hash_key from hashTable" -> "lock URL in hashTable" [label = "not found"];
+  "check hash_key from hashTable" -> "pass request" [label = "found, but marked pass"];
+  "check hash_key from hashTable" -> "check hash_key from hashTable" [label = "locked or unable to get mutex, wait insert_lock_retry_time"];
+  "lock URL in hashTable" -> TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK;
+  TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK -> "remove URL from hashTable(1)" [label = "hit_fresh or skipped"];
+  TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK -> "request origin server" [label = "miss or stale"];
+  "request origin server" -> TS_HTTP_READ_RESPONSE_HDR_HOOK;
+  TS_HTTP_READ_RESPONSE_HDR_HOOK -> "remove URL from hashTable(1)" [label = "not 200/OK response"];
+  TS_HTTP_READ_RESPONSE_HDR_HOOK -> "check read_while_writer config";
+  "check read_while_writer config" -> "remove URL from hashTable(1)" [label = "enabled"];
+  "check read_while_writer config" -> TS_HTTP_TXN_CLOSE_HOOK [label = "disabled"];
+  TS_HTTP_READ_RESPONSE_HDR_HOOK -> "mark pass in hashTable" [label = "non-cacheable"];
+  "remove URL from hashTable(1)" -> TS_HTTP_TXN_CLOSE_HOOK;
+  "mark pass in hashTable" -> TS_HTTP_TXN_CLOSE_HOOK;
+  "pass request" -> TS_HTTP_TXN_CLOSE_HOOK;
+  TS_HTTP_TXN_CLOSE_HOOK -> "remove URL from hashTable(2)";
+  TS_HTTP_TXN_CLOSE_HOOK -> "check keep_pass_record_time" [label = "non-cacheable"];
+  "check keep_pass_record_time" -> "add into KeepPassList" [label = "> 0"];
+  "check keep_pass_record_time" -> "remove URL from hashTable(2)" [label = "= 0"];
+  "add into KeepPassList" -> "transaction close";
+  "remove URL from hashTable(2)" -> "transaction close";
+  "transaction close" -> accept;
+
+  TS_HTTP_POST_REMAP_HOOK [shape = box];
+  TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK[shape = box];
+  TS_HTTP_READ_RESPONSE_HDR_HOOK [shape = box];
+  TS_HTTP_TXN_CLOSE_HOOK [shape = box];
+
+  "check request method (and header)" [shape = diamond];
+  "check hash_key from hashTable" [shape = diamond];
+  "check read_while_writer config" [shape = diamond];
+  "check keep_pass_record_time" [shape = diamond];
+}
diff --git a/plugins/experimental/custom_redirect/Makefile.am b/plugins/experimental/custom_redirect/Makefile.am
new file mode 100644
index 00000000..302244f0
--- /dev/null
+++ b/plugins/experimental/custom_redirect/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = custom_redirect.la
+custom_redirect_la_SOURCES = custom_redirect.cc
+custom_redirect_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
diff --git a/plugins/experimental/custom_redirect/Makefile.in b/plugins/experimental/custom_redirect/Makefile.in
new file mode 100644
index 00000000..48069417
--- /dev/null
+++ b/plugins/experimental/custom_redirect/Makefile.in
@@ -0,0 +1,935 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/custom_redirect/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/custom_redirect/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+custom_redirect.la: $(custom_redirect_la_OBJECTS) $(custom_redirect_la_DEPENDENCIES) $(EXTRA_custom_redirect_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(custom_redirect_la_LINK) -rpath $(pkglibdir) $(custom_redirect_la_OBJECTS) $(custom_redirect_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/custom_redirect.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/custom_redirect/README b/plugins/experimental/custom_redirect/README
new file mode 100644
index 00000000..05bf4479
--- /dev/null
+++ b/plugins/experimental/custom_redirect/README
@@ -0,0 +1,41 @@
+In /home/y/conf/yts/plugin.config, you can add 
+  1) custom_redirect.so
+  or
+  2) custom_redirect.so wretch-redirect-url
+  or
+  3) custom_redirect.so 507
+
+Case 1) means using the default header (x-redirect-url) to specify a URL to redirect to;
+Case 2) user specifies their specific header name (to replace the default one) to specify a URL to redirect to;
+Case 3) user sepcifies the specific return code, if return code matches, then plugin will force to redirect to the 
+URL specified in standard "Location" header.
+
+For simplicity, we recommend to use case 1)
+
+Version 1.0.0 (8/9/2012, bcall)
+ - Ported to ATS
+
+Version 0.5.1 (12/07/10, vmamidi)
+ - fixing the bug with redirect
+
+Version 0.4 (12/06/10, vmamidi)
+  - enabling the redirect only for GETs
+
+Version 0.3 (11/19/09, wenjing)
+  - Remove verbose log
+
+Version 0.2 (11/09/09, wenjing)
+  - Add more instruction
+
+This is a plugin for YTS (Yahoo Traffic Server) that allows OS (Origin Server)
+to do either of the following two things: 
+
+  1) specify a particular response header (default: x-redirect-url) with a URL 
+     that forces YTS redirect to that URL;
+
+  2) specify a particular return error code (such as 507) with a standard Location
+     header which forces YTS to redirect to that location URL.
+
+Version 0.1 (09/17/09, wenjing)
+  - Initial version.
+ 
diff --git a/plugins/experimental/custom_redirect/custom_redirect.cc b/plugins/experimental/custom_redirect/custom_redirect.cc
new file mode 100644
index 00000000..5af9a83c
--- /dev/null
+++ b/plugins/experimental/custom_redirect/custom_redirect.cc
@@ -0,0 +1,173 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* custom_redirect.cc: Allows read header set by origin for internal redirects
+ */
+
+#include <stdio.h>
+#include <string>
+#include <iostream>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <ts/ts.h>
+#include <string.h>
+#include <stdlib.h>
+
+static char* redirect_url_header = NULL;
+static int redirect_url_header_len = 0;
+static int return_code = TS_HTTP_STATUS_NONE;
+
+static void
+handle_response (TSHttpTxn txnp, TSCont /* contp ATS_UNUSED */)
+{
+    TSMBuffer resp_bufp;
+    TSMLoc resp_loc;
+    TSMBuffer req_bufp;
+    TSMLoc req_loc;
+    TSMLoc redirect_url_loc;
+    TSHttpStatus status;
+    const char *redirect_url_str;
+    int redirect_url_length;
+
+    if (TSHttpTxnServerRespGet (txnp, &resp_bufp, &resp_loc) != TS_SUCCESS) {
+        TSError ("couldn't retrieve server response header\n");
+    }
+    else {
+        if ( (status = TSHttpHdrStatusGet (resp_bufp, resp_loc)) == TS_HTTP_STATUS_NONE ) {
+            TSError ("couldn't retrieve status from client response header\n");
+        }
+        else {
+            if(TSHttpTxnClientReqGet (txnp, &req_bufp, &req_loc) != TS_SUCCESS) {
+                TSError ("couldn't retrieve server response header\n");
+            }
+            else {
+                int method_len;
+                const char *method = TSHttpHdrMethodGet(req_bufp, req_loc, &method_len);
+                if ((return_code == TS_HTTP_STATUS_NONE || return_code == status) && ((strncasecmp(method, TS_HTTP_METHOD_GET, TS_HTTP_LEN_GET) == 0))) {
+                  redirect_url_loc = TSMimeHdrFieldFind (resp_bufp, resp_loc, redirect_url_header, redirect_url_header_len);
+
+                    if (redirect_url_loc) {
+                        redirect_url_str = TSMimeHdrFieldValueStringGet (resp_bufp, resp_loc, redirect_url_loc, -1, &redirect_url_length);
+                        if (redirect_url_str) {
+                            if (redirect_url_length > 0) {
+                              char* url = (char*)TSmalloc(redirect_url_length+1);
+
+                              TSstrlcpy(url, redirect_url_str, redirect_url_length + 1);
+                              TSHttpTxnRedirectUrlSet(txnp, url, redirect_url_length);
+                            }
+                        }
+                        TSHandleMLocRelease (resp_bufp, resp_loc, redirect_url_loc);
+                    }
+                }
+                //TSHandleStringRelease(req_bufp, req_loc, method);
+                TSHandleMLocRelease (req_bufp, TS_NULL_MLOC, req_loc);
+            }
+        }
+        TSHandleMLocRelease (resp_bufp, TS_NULL_MLOC, resp_loc);
+    }
+    TSHttpTxnReenable (txnp, TS_EVENT_HTTP_CONTINUE);
+}
+
+
+static int
+plugin_main_handler (TSCont contp, TSEvent event, void *edata)
+{
+    switch (event)
+    {
+        case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+        {
+            TSHttpTxn txnp = (TSHttpTxn) edata;
+            TSDebug( "[custom_redirect1]", "MAIN_HANDLER::TS_HTTP_READ_RESPONSE_HDR_HOOK" );
+            handle_response(txnp, contp);
+            break;
+        }
+        
+        
+        default:
+        {
+            TSDebug( "[custom_redirect]", "default event"); 
+            break;
+        }
+    }
+
+    return 0;
+}
+
+bool
+isNumber(const char *str)
+{
+    for (int i=0; str[i] != '\0'; i++) {
+        if (!isdigit(str[i])) {
+            return false;
+        }
+    }
+    return true;
+}
+
+void
+TSPluginInit (int argc, const char *argv[])
+{
+  //TSPluginRegistrationInfo info;
+
+/*
+    info.plugin_name = (char*)"";
+    info.vendor_name = (char*)"Apache Software Foundation";
+    info.support_email = (char*)"dev@trafficserver.apache.org";
+*/ 
+    /* This plugin supports following types of url redirect here:
+     * 
+     * 1. User can specify a particular redirect-url header name in the plugin command line, 
+     *    in which case plugin will just look for that header in response and redirect to it.
+     *
+     *OR:
+     * 2. User can also specify a return error code, in which case if the code matches with 
+     *    the response, plugin will look for the standard "Location" header and redirect to it
+     *
+     *OR:
+     * 3. If nothing specified, plugin will assume the first case and use the default redirect-url
+     *    header name "x-redirect-url"
+    */
+    if (argc > 1) {
+        if (isNumber(argv[1])) {
+            return_code = atoi(argv[1]);
+            redirect_url_header = TSstrdup(TS_MIME_FIELD_LOCATION);
+        } else {
+            redirect_url_header = TSstrdup(argv[1]);
+        }
+    }
+    else {
+        // default header name is x-redirect-url
+        redirect_url_header = TSstrdup("x-redirect-url");
+        redirect_url_header_len = strlen(redirect_url_header);
+    }
+    /*
+    if (TSPluginRegister (TS_SDK_VERSION_5_2 , &info) != TS_SUCCESS) {
+        TSError ("[custom_redirect] Plugin registration failed.");
+    }
+    */
+    TSError("[custom_redirect] Plugin registered successfully.");
+    TSCont mainCont = TSContCreate(plugin_main_handler, NULL);
+    TSHttpHookAdd (TS_HTTP_READ_RESPONSE_HDR_HOOK, mainCont);
+}
+
diff --git a/plugins/experimental/escalate/Makefile.am b/plugins/experimental/escalate/Makefile.am
new file mode 100644
index 00000000..1537847c
--- /dev/null
+++ b/plugins/experimental/escalate/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = escalate.la
+escalate_la_SOURCES = escalate.cc
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diff --git a/plugins/experimental/escalate/Makefile.in b/plugins/experimental/escalate/Makefile.in
new file mode 100644
index 00000000..d2f9167b
--- /dev/null
+++ b/plugins/experimental/escalate/Makefile.in
@@ -0,0 +1,934 @@
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+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = escalate.la
+escalate_la_SOURCES = escalate.cc
+escalate_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/escalate/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/escalate/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+escalate.la: $(escalate_la_OBJECTS) $(escalate_la_DEPENDENCIES) $(EXTRA_escalate_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(escalate_la_LINK) -rpath $(pkglibdir) $(escalate_la_OBJECTS) $(escalate_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/escalate.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
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+info: info-am
+
+info-am:
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+install-data-am:
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+install-dvi: install-dvi-am
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+install-dvi-am:
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+install-exec-am: install-pkglibLTLIBRARIES
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+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+mostlyclean: mostlyclean-am
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+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+
+ps-am:
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+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/escalate/escalate.cc b/plugins/experimental/escalate/escalate.cc
new file mode 100644
index 00000000..ebc6e2b3
--- /dev/null
+++ b/plugins/experimental/escalate/escalate.cc
@@ -0,0 +1,220 @@
+/** @file
+
+  This plugin allows retrying requests against different destinations.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include <ts/ts.h>
+#include <ts/remap.h>
+#include <ts/experimental.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <getopt.h>
+#include <string.h>
+#include <string>
+#include <iterator>
+#include <map>
+
+
+// Constants and some declarations
+const char PLUGIN_NAME[] = "escalate";
+static int EscalateResponse(TSCont, TSEvent, void *);
+
+
+//////////////////////////////////////////////////////////////////////////////////////////
+// Hold information about the escalation / retry states for a remap rule.
+//
+struct EscalationState
+{
+  enum RetryType {
+    RETRY_URL,
+    RETRY_HOST
+  };
+
+  struct RetryInfo
+  {
+    RetryType type;
+    std::string target;
+  };
+
+  typedef std::map<unsigned, RetryInfo*> StatusMapType;
+
+  EscalationState()
+  {
+    cont = TSContCreate(EscalateResponse, NULL);
+    TSContDataSet(cont, this);
+  }
+
+  ~EscalationState()
+  {
+    for (StatusMapType::iterator iter = status_map.begin(); iter != status_map.end(); ++iter) {
+      delete(iter->second);
+    }
+    TSContDestroy(cont);
+  }
+
+  TSCont cont;
+  StatusMapType status_map;
+};
+
+
+//////////////////////////////////////////////////////////////////////////////////////////
+// Main continuation for the plugin, examining an origin response for a potential retry.
+//
+static int
+EscalateResponse(TSCont cont, TSEvent event, void* edata)
+{
+  TSHttpTxn txn = (TSHttpTxn)edata;
+  EscalationState* es = static_cast<EscalationState*>(TSContDataGet(cont));
+  EscalationState::StatusMapType::iterator entry;
+  TSMBuffer mbuf;
+  TSMLoc hdrp, url;
+  TSHttpStatus status;
+  char* url_str = NULL;
+  int url_len, tries;
+
+  TSAssert(event == TS_EVENT_HTTP_READ_RESPONSE_HDR);
+
+  // First, we need the server response ...
+  if (TS_SUCCESS != TSHttpTxnServerRespGet(txn, &mbuf, &hdrp)) {
+    goto no_action;
+  }
+
+  tries = TSHttpTxnRedirectRetries(txn);
+  if (0 != tries) { // ToDo: Future support for more than one retry-URL
+    goto no_action;
+  }
+  TSDebug(PLUGIN_NAME, "This is try %d, proceeding", tries);
+
+  // Next, the response status ...
+  status = TSHttpHdrStatusGet(mbuf, hdrp);
+  TSHandleMLocRelease(mbuf, TS_NULL_MLOC, hdrp);  // Don't need this any more
+
+  // See if we have an escalation retry config for this response code
+  entry  = es->status_map.find((unsigned)status);
+  if (entry == es->status_map.end()) {
+    goto no_action;
+  }
+
+  TSDebug(PLUGIN_NAME, "Found an entry for HTTP status %u", (unsigned)status);
+  if (EscalationState::RETRY_URL == entry->second->type) {
+    url_str = TSstrdup(entry->second->target.c_str());
+    url_len = entry->second->target.size();
+    TSDebug(PLUGIN_NAME, "Setting new URL to %.*s", url_len, url_str);
+  } else if (EscalationState::RETRY_HOST == entry->second->type) {
+    if (TS_SUCCESS == TSHttpTxnClientReqGet(txn, &mbuf, &hdrp)) {
+      if (TS_SUCCESS == TSHttpHdrUrlGet(mbuf, hdrp, &url)) {
+        // Update the request URL with the new Host to try.
+        TSUrlHostSet(mbuf, url, entry->second->target.c_str(), entry->second->target.size());
+        url_str = TSUrlStringGet(mbuf, url, &url_len);
+        TSDebug(PLUGIN_NAME, "Setting new Host: to %.*s", url_len, url_str);
+      }
+      // Release the request MLoc
+      TSHandleMLocRelease(mbuf, TS_NULL_MLOC, hdrp);
+    }
+  }
+
+  // Now update the Redirect URL, if set
+  if (url_str) {
+    TSHttpTxnRedirectUrlSet(txn, url_str, url_len); // Transfers ownership
+  }
+
+  // Set the transaction free ...
+ no_action:
+  TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+  return TS_EVENT_NONE;
+}
+
+
+TSReturnCode
+TSRemapInit(TSRemapInterface* /* api */, char* /* errbuf */, int /* bufsz */)
+{
+  return TS_SUCCESS;
+}
+
+
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** instance, char* errbuf, int errbuf_size)
+{
+  EscalationState* es = new EscalationState();
+
+  // The first two arguments are the "from" and "to" URL string. We can just
+  // skip those, since we only ever remap on the error path.
+  for (int i = 2; i < argc; ++i) {
+    char *sep, *token, *save;
+
+    // Each token should be a status code then a URL, separated by ':'.
+    sep = strchr(argv[i], ':');
+    if (sep == NULL) {
+      snprintf(errbuf, errbuf_size, "malformed status:target config: %s", argv[i]);
+      goto fail;
+    }
+
+    *sep = '\0';
+    ++sep; // Skip over the ':' (which is now \0)
+
+    // OK, we have a valid status/URL pair.
+    EscalationState::RetryInfo* info = new EscalationState::RetryInfo();
+
+    info->target = sep;
+    if (std::string::npos != info->target.find('/')) {
+      info->type = EscalationState::RETRY_URL;
+      TSDebug(PLUGIN_NAME, "Creating Redirect rule with URL = %s", sep);
+    } else {
+      info->type = EscalationState::RETRY_HOST;
+      TSDebug(PLUGIN_NAME, "Creating Redirect rule with Host = %s", sep);
+    }
+
+    for (token = strtok_r(argv[i], ",", &save); token; token = strtok_r(NULL, ",", &save)) {
+      unsigned status = strtol(token, NULL, 10);
+
+      if (status < 100 || status > 599) {
+        snprintf(errbuf, errbuf_size, "invalid status code: %.*s", (int)std::distance(argv[i], sep), argv[i]);
+        goto fail;
+      }
+
+      TSDebug(PLUGIN_NAME, "      added status = %d to rule", status);
+      es->status_map[status] = info;
+    }
+  }
+
+  *instance = es;
+  return TS_SUCCESS;
+
+fail:
+  delete es;
+  return TS_ERROR;
+}
+
+
+void
+TSRemapDeleteInstance(void* instance)
+{
+  delete static_cast<EscalationState*>(instance);
+}
+
+
+TSRemapStatus
+TSRemapDoRemap(void* instance, TSHttpTxn txn, TSRemapRequestInfo* /* rri */)
+{
+  EscalationState* es = static_cast<EscalationState*>(instance);
+
+  TSHttpTxnHookAdd(txn, TS_HTTP_READ_RESPONSE_HDR_HOOK, es->cont);
+  return TSREMAP_NO_REMAP;
+}
diff --git a/plugins/experimental/esi/Makefile.am b/plugins/experimental/esi/Makefile.am
new file mode 100644
index 00000000..1677d511
--- /dev/null
+++ b/plugins/experimental/esi/Makefile.am
@@ -0,0 +1,99 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+AM_CPPFLAGS += \
+  -I$(srcdir)/lib \
+  -I$(srcdir)/fetcher \
+  -I$(srcdir)/test
+
+AM_CXXFLAGS = \
+  -Wno-deprecated
+
+noinst_LTLIBRARIES = libesicore.la libtest.la
+pkglib_LTLIBRARIES = esi.la combo_handler.la
+
+check_PROGRAMS = docnode_test parser_test processor_test utils_test vars_test
+
+libesicore_la_SOURCES = \
+	lib/DocNode.cc \
+	lib/EsiParser.cc \
+	lib/EsiGzip.cc \
+	lib/EsiProcessor.cc \
+	lib/Expression.cc \
+	lib/FailureInfo.cc \
+	lib/HandlerManager.cc \
+	lib/Stats.cc \
+	lib/Utils.cc \
+	lib/Variables.cc \
+	lib/gzip.cc
+
+# NOTE: HandlerManager::getHandler() is implemented differently in
+# HandlerManager.cc and TestHandlerManager.cc. The unit tests depend
+# on the TestHandlerManager.cc implementation, so don't accidentally
+# link the wrong one into libtest.
+
+libtest_la_SOURCES = \
+	lib/DocNode.cc \
+	lib/EsiParser.cc \
+	lib/EsiGzip.cc \
+	lib/EsiProcessor.cc \
+	lib/Expression.cc \
+	lib/FailureInfo.cc \
+	lib/Stats.cc \
+	lib/Utils.cc \
+	lib/Variables.cc \
+	lib/gzip.cc \
+	test/print_funcs.cc \
+	test/HandlerMap.cc \
+	test/StubIncludeHandler.cc \
+	test/TestHandlerManager.cc
+
+esi_la_SOURCES =  \
+	esi.cc \
+	fetcher/HttpDataFetcherImpl.cc \
+	serverIntercept.cc
+
+combo_handler_la_SOURCES = \
+	combo_handler.cc \
+	fetcher/HttpDataFetcherImpl.cc
+
+esi_la_LIBADD = libesicore.la
+esi_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+combo_handler_la_LIBADD = libesicore.la
+combo_handler_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+docnode_test_SOURCES = test/docnode_test.cc
+docnode_test_LDADD = libtest.la -lz
+
+parser_test_SOURCES = test/parser_test.cc
+parser_test_LDADD = libtest.la -lz
+
+processor_test_SOURCES = test/processor_test.cc
+processor_test_LDADD = libtest.la -lz
+
+utils_test_SOURCES = test/utils_test.cc
+utils_test_LDADD = libtest.la -lz
+
+vars_test_SOURCES = test/vars_test.cc
+vars_test_LDADD = libtest.la -lz
+
+TESTS = $(check_PROGRAMS)
+
+test:: $(TESTS)
+	for f in $(TESTS) ; do ./$$f; if [ $$? -ne 0 ]; then break; fi done
diff --git a/plugins/experimental/esi/Makefile.in b/plugins/experimental/esi/Makefile.in
new file mode 100644
index 00000000..f716e373
--- /dev/null
+++ b/plugins/experimental/esi/Makefile.in
@@ -0,0 +1,1557 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
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+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
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+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
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+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
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+      -*I?*) strip_trailopt 'I';; \
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+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
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+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp \
+	$(top_srcdir)/build/aux/test-driver README
+check_PROGRAMS = docnode_test$(EXEEXT) parser_test$(EXEEXT) \
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
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+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
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+  esac;
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+am__install_max = 40
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+am__nobase_strip = \
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+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
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+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
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+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
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+am__installdirs = "$(DESTDIR)$(pkglibdir)"
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+am__dirstamp = $(am__leading_dot)dirstamp
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+	fetcher/HttpDataFetcherImpl.lo
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+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
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+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(combo_handler_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
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+	serverIntercept.lo
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+	lib/EsiGzip.lo lib/EsiProcessor.lo lib/Expression.lo \
+	lib/FailureInfo.lo lib/HandlerManager.lo lib/Stats.lo \
+	lib/Utils.lo lib/Variables.lo lib/gzip.lo
+libesicore_la_OBJECTS = $(am_libesicore_la_OBJECTS)
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+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
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+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
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+	$(libesicore_la_SOURCES) $(libtest_la_SOURCES) \
+	$(docnode_test_SOURCES) $(parser_test_SOURCES) \
+	$(processor_test_SOURCES) $(utils_test_SOURCES) \
+	$(vars_test_SOURCES)
+DIST_SOURCES = $(combo_handler_la_SOURCES) $(esi_la_SOURCES) \
+	$(libesicore_la_SOURCES) $(libtest_la_SOURCES) \
+	$(docnode_test_SOURCES) $(parser_test_SOURCES) \
+	$(processor_test_SOURCES) $(utils_test_SOURCES) \
+	$(vars_test_SOURCES)
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+# e.g., the same source file might be shared among _SOURCES variables
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+am__define_uniq_tagged_files = \
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+    mgn=''; \
+    brg=''; \
+    std=''; \
+  fi; \
+}
+am__recheck_rx = ^[ 	]*:recheck:[ 	]*
+am__global_test_result_rx = ^[ 	]*:global-test-result:[ 	]*
+am__copy_in_global_log_rx = ^[ 	]*:copy-in-global-log:[ 	]*
+# A command that, given a newline-separated list of test names on the
+# standard input, print the name of the tests that are to be re-run
+# upon "make recheck".
+am__list_recheck_tests = $(AWK) '{ \
+  recheck = 1; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+        { \
+          if ((getline line2 < ($$0 ".log")) < 0) \
+	    recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[nN][Oo]/) \
+        { \
+          recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[yY][eE][sS]/) \
+        { \
+          break; \
+        } \
+    }; \
+  if (recheck) \
+    print $$0; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# A command that, given a newline-separated list of test names on the
+# standard input, create the global log from their .trs and .log files.
+am__create_global_log = $(AWK) ' \
+function fatal(msg) \
+{ \
+  print "fatal: making $@: " msg | "cat >&2"; \
+  exit 1; \
+} \
+function rst_section(header) \
+{ \
+  print header; \
+  len = length(header); \
+  for (i = 1; i <= len; i = i + 1) \
+    printf "="; \
+  printf "\n\n"; \
+} \
+{ \
+  copy_in_global_log = 1; \
+  global_test_result = "RUN"; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+         fatal("failed to read from " $$0 ".trs"); \
+      if (line ~ /$(am__global_test_result_rx)/) \
+        { \
+          sub("$(am__global_test_result_rx)", "", line); \
+          sub("[ 	]*$$", "", line); \
+          global_test_result = line; \
+        } \
+      else if (line ~ /$(am__copy_in_global_log_rx)[nN][oO]/) \
+        copy_in_global_log = 0; \
+    }; \
+  if (copy_in_global_log) \
+    { \
+      rst_section(global_test_result ": " $$0); \
+      while ((rc = (getline line < ($$0 ".log"))) != 0) \
+      { \
+        if (rc < 0) \
+          fatal("failed to read from " $$0 ".log"); \
+        print line; \
+      }; \
+      printf "\n"; \
+    }; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# Restructured Text title.
+am__rst_title = { sed 's/.*/   &   /;h;s/./=/g;p;x;s/ *$$//;p;g' && echo; }
+# Solaris 10 'make', and several other traditional 'make' implementations,
+# pass "-e" to $(SHELL), and POSIX 2008 even requires this.  Work around it
+# by disabling -e (using the XSI extension "set +e") if it's set.
+am__sh_e_setup = case $$- in *e*) set +e;; esac
+# Default flags passed to test drivers.
+am__common_driver_flags = \
+  --color-tests "$$am__color_tests" \
+  --enable-hard-errors "$$am__enable_hard_errors" \
+  --expect-failure "$$am__expect_failure"
+# To be inserted before the command running the test.  Creates the
+# directory for the log if needed.  Stores in $dir the directory
+# containing $f, in $tst the test, in $log the log.  Executes the
+# developer- defined test setup AM_TESTS_ENVIRONMENT (if any), and
+# passes TESTS_ENVIRONMENT.  Set up options for the wrapper that
+# will run the test scripts (or their associated LOG_COMPILER, if
+# thy have one).
+am__check_pre = \
+$(am__sh_e_setup);					\
+$(am__vpath_adj_setup) $(am__vpath_adj)			\
+$(am__tty_colors);					\
+srcdir=$(srcdir); export srcdir;			\
+case "$@" in						\
+  */*) am__odir=`echo "./$@" | sed 's|/[^/]*$$||'`;;	\
+    *) am__odir=.;; 					\
+esac;							\
+test "x$$am__odir" = x"." || test -d "$$am__odir" 	\
+  || $(MKDIR_P) "$$am__odir" || exit $$?;		\
+if test -f "./$$f"; then dir=./;			\
+elif test -f "$$f"; then dir=;				\
+else dir="$(srcdir)/"; fi;				\
+tst=$$dir$$f; log='$@'; 				\
+if test -n '$(DISABLE_HARD_ERRORS)'; then		\
+  am__enable_hard_errors=no; 				\
+else							\
+  am__enable_hard_errors=yes; 				\
+fi; 							\
+case " $(XFAIL_TESTS) " in				\
+  *[\ \	]$$f[\ \	]* | *[\ \	]$$dir$$f[\ \	]*) \
+    am__expect_failure=yes;;				\
+  *)							\
+    am__expect_failure=no;;				\
+esac; 							\
+$(AM_TESTS_ENVIRONMENT) $(TESTS_ENVIRONMENT)
+# A shell command to get the names of the tests scripts with any registered
+# extension removed (i.e., equivalently, the names of the test logs, with
+# the '.log' extension removed).  The result is saved in the shell variable
+# '$bases'.  This honors runtime overriding of TESTS and TEST_LOGS.  Sadly,
+# we cannot use something simpler, involving e.g., "$(TEST_LOGS:.log=)",
+# since that might cause problem with VPATH rewrites for suffix-less tests.
+# See also 'test-harness-vpath-rewrite.sh' and 'test-trs-basic.sh'.
+am__set_TESTS_bases = \
+  bases='$(TEST_LOGS)'; \
+  bases=`for i in $$bases; do echo $$i; done | sed 's/\.log$$//'`; \
+  bases=`echo $$bases`
+RECHECK_LOGS = $(TEST_LOGS)
+AM_RECURSIVE_TARGETS = check recheck
+TEST_SUITE_LOG = test-suite.log
+TEST_EXTENSIONS = @EXEEXT@ .test
+LOG_DRIVER = $(SHELL) $(top_srcdir)/build/aux/test-driver
+LOG_COMPILE = $(LOG_COMPILER) $(AM_LOG_FLAGS) $(LOG_FLAGS)
+am__set_b = \
+  case '$@' in \
+    */*) \
+      case '$*' in \
+        */*) b='$*';; \
+          *) b=`echo '$@' | sed 's/\.log$$//'`; \
+       esac;; \
+    *) \
+      b='$*';; \
+  esac
+am__test_logs1 = $(TESTS:=.log)
+am__test_logs2 = $(am__test_logs1:@EXEEXT@.log=.log)
+TEST_LOGS = $(am__test_logs2:.test.log=.log)
+TEST_LOG_DRIVER = $(SHELL) $(top_srcdir)/build/aux/test-driver
+TEST_LOG_COMPILE = $(TEST_LOG_COMPILER) $(AM_TEST_LOG_FLAGS) \
+	$(TEST_LOG_FLAGS)
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+pkgdatadir = @pkgdatadir@
+pkglibdir = $(pkglibexecdir)
+pkglibexecdir = @pkglibexecdir@
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_CFLAGS = @AM_CFLAGS@
+AM_CXXFLAGS = \
+  -Wno-deprecated
+
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+API_DEFS = @API_DEFS@
+AR = @AR@
+ASCPP = @ASCPP@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BOOST_CPPFLAGS = @BOOST_CPPFLAGS@
+BOOST_LDFLAGS = @BOOST_LDFLAGS@
+CC = @CC@
+CCACHE = @CCACHE@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CURL_CFLAGS = @CURL_CFLAGS@
+CURL_CONFIG = @CURL_CONFIG@
+CURL_LIBS = @CURL_LIBS@
+CURSES_LIB = @CURSES_LIB@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+EXPAT_LDFLAGS = @EXPAT_LDFLAGS@
+EXTRA_CC_LDFLAGS = @EXTRA_CC_LDFLAGS@
+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
+FGREP = @FGREP@
+FLEX_CFLAGS = @FLEX_CFLAGS@
+GEOIP_LIBS = @GEOIP_LIBS@
+GREP = @GREP@
+HOST_GUESS = @HOST_GUESS@
+HWLOC_CFLAGS = @HWLOC_CFLAGS@
+HWLOC_LIBS = @HWLOC_LIBS@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS) -I$(srcdir)/lib \
+	-I$(srcdir)/fetcher -I$(srcdir)/test
+noinst_LTLIBRARIES = libesicore.la libtest.la
+pkglib_LTLIBRARIES = esi.la combo_handler.la
+libesicore_la_SOURCES = \
+	lib/DocNode.cc \
+	lib/EsiParser.cc \
+	lib/EsiGzip.cc \
+	lib/EsiProcessor.cc \
+	lib/Expression.cc \
+	lib/FailureInfo.cc \
+	lib/HandlerManager.cc \
+	lib/Stats.cc \
+	lib/Utils.cc \
+	lib/Variables.cc \
+	lib/gzip.cc
+
+
+# NOTE: HandlerManager::getHandler() is implemented differently in
+# HandlerManager.cc and TestHandlerManager.cc. The unit tests depend
+# on the TestHandlerManager.cc implementation, so don't accidentally
+# link the wrong one into libtest.
+libtest_la_SOURCES = \
+	lib/DocNode.cc \
+	lib/EsiParser.cc \
+	lib/EsiGzip.cc \
+	lib/EsiProcessor.cc \
+	lib/Expression.cc \
+	lib/FailureInfo.cc \
+	lib/Stats.cc \
+	lib/Utils.cc \
+	lib/Variables.cc \
+	lib/gzip.cc \
+	test/print_funcs.cc \
+	test/HandlerMap.cc \
+	test/StubIncludeHandler.cc \
+	test/TestHandlerManager.cc
+
+esi_la_SOURCES = \
+	esi.cc \
+	fetcher/HttpDataFetcherImpl.cc \
+	serverIntercept.cc
+
+combo_handler_la_SOURCES = \
+	combo_handler.cc \
+	fetcher/HttpDataFetcherImpl.cc
+
+esi_la_LIBADD = libesicore.la
+esi_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+combo_handler_la_LIBADD = libesicore.la
+combo_handler_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
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+processor_test_LDADD = libtest.la -lz
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+utils_test_LDADD = libtest.la -lz
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+vars_test_LDADD = libtest.la -lz
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+all: all-am
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
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+	      exit 1;; \
+	  esac; \
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+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/esi/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/esi/Makefile
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+	@case '$?' in \
+	  *config.status*) \
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+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
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+	locs=`for p in $$list; do echo $$p; done | \
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+	  result_count $$1 "XFAIL:" $$xfail "$$lgn"; \
+	  result_count $$1 "FAIL: " $$fail  "$$red"; \
+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
+	  echo;								\
+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary for $(PACKAGE_STRING)$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS:
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	trs_list=`for i in $$bases; do echo $$i.trs; done`; \
+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all $(check_PROGRAMS)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+docnode_test.log: docnode_test$(EXEEXT)
+	@p='docnode_test$(EXEEXT)'; \
+	b='docnode_test'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+parser_test.log: parser_test$(EXEEXT)
+	@p='parser_test$(EXEEXT)'; \
+	b='parser_test'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+processor_test.log: processor_test$(EXEEXT)
+	@p='processor_test$(EXEEXT)'; \
+	b='processor_test'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+utils_test.log: utils_test$(EXEEXT)
+	@p='utils_test$(EXEEXT)'; \
+	b='utils_test'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+vars_test.log: vars_test$(EXEEXT)
+	@p='vars_test$(EXEEXT)'; \
+	b='vars_test'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+.test.log:
+	@p='$<'; \
+	$(am__set_b); \
+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+@am__EXEEXT_TRUE@	--log-file $$b.log --trs-file $$b.trs \
+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f fetcher/$(DEPDIR)/$(am__dirstamp)
+	-rm -f fetcher/$(am__dirstamp)
+	-rm -f lib/$(DEPDIR)/$(am__dirstamp)
+	-rm -f lib/$(am__dirstamp)
+	-rm -f test/$(DEPDIR)/$(am__dirstamp)
+	-rm -f test/$(am__dirstamp)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-noinstLTLIBRARIES clean-pkglibLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR) fetcher/$(DEPDIR) lib/$(DEPDIR) test/$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR) fetcher/$(DEPDIR) lib/$(DEPDIR) test/$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-TESTS check-am clean \
+	clean-checkPROGRAMS clean-generic clean-libtool \
+	clean-noinstLTLIBRARIES clean-pkglibLTLIBRARIES cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am recheck tags tags-am uninstall \
+	uninstall-am uninstall-pkglibLTLIBRARIES
+
+
+test:: $(TESTS)
+	for f in $(TESTS) ; do ./$$f; if [ $$? -ne 0 ]; then break; fi done
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/esi/README b/plugins/experimental/esi/README
new file mode 100644
index 00000000..8d88daa2
--- /dev/null
+++ b/plugins/experimental/esi/README
@@ -0,0 +1,5 @@
+ESI plugin
+--------------------
+
+This plugin implements the ESI specification.
+
diff --git a/plugins/experimental/esi/README.combo b/plugins/experimental/esi/README.combo
new file mode 100644
index 00000000..0cb37742
--- /dev/null
+++ b/plugins/experimental/esi/README.combo
@@ -0,0 +1,106 @@
+Combohandler
+--------------------
+
+This plugin provides that functionality (and more) with the same
+interface but with these differences in configuration:
+
+The arguments in the plugin.config line in order represent
+
+1) The path that should triggers combo handler (defaults to
+   "admin/v1/combo")
+
+2) The name of the key used for signature verification (disabled
+   by default) [verification not implemented yet]
+
+3) A colon separated list of headers which, if present on atleast one 
+   response, will be added to the combo response.
+
+A "-" can be supplied as a value for any of these arguments to request
+default value be applied.
+
+Also, just like the original combohandler, this plugin generates URLs
+of the form 'http://localhost/<dir>/<file-path>'. <dir> here defaults
+to "Host" header unless specified by the file path in the query parameter using
+a colon. For example:
+
+http://combo.com/admin/v1/combo?filepath1&dir1:filepath2&filepath3
+
+Will result in these three pages being fetched:
+
+http://localhost/combo.com/filepath1
+http://localhost/dir1/filepath2
+http://localhost/combo.com/filepath3
+
+Remap rules have to be specified to map the above URLs to desired
+content servers.
+
+From 1.1.0, the plugin also supports a prefix parameter. Common parts
+of successive file paths can be extracted and specified separately
+using a 'p' query parameter. Successive file path parameters are
+appended to this prefix to create complete file paths. The prefix will
+remain active until changed or cleared (set to an empty string). For
+example, the query
+
+"/file1&p=/path1/&file2&file3&p=&/file4&p=/dir:path2/&file5&file6"
+
+results in these file paths being "reconstructed":
+
+/file1
+/path1/file2
+/path1/file3
+/file4
+/dir:path2/file5
+/dir:path2/file6
+
+Config sample
+------
+ [plugin.config]
+  combo_handler.so admin/v1/combo
+
+ [remap.config]
+  map http://combo.com           http://os.combo.com  @plugin=combo_handler.so
+  map http://localhost/combo.com http://os.combo.com
+  map http://localhost/dir1      http://os1.combo.com
+
+  (note that if pristine_host_hdr is enabled in records.config, the Host header
+   of request to your combo origin server is 'localhost')
+
+Version 1.2.0
+- ported to ATS-3.3.3
+- per-map enabled (disabled for all map by default)
+- use full Host header as default bucket
+- limit sub-file's max count(30) and querystring's max length(3000)
+
+Version 1.1.2
+- Use the Bucket visited(instead of 'l' as the default) as the nickname if nickname is not passed.
+
+Version 1.1.1
+-------------
+- Using yts_http_fetcher_impl package instead of yts_esi_lib
+
+Version 1.1.0
+-------------
+- Support for 'p=' prefix parameters
+
+Version 1.0.4
+-------------
+- Checking vconn before closing (triggered on cache hits)
+
+Version 1.0.3
+-------------
+- Defaulting to '/l' as the path if no colon prefix path
+  is specified
+
+Version 1.0.2
+-------------
+- Using localhost as content server (relying on remap rules)
+  and generalizing the colon prefix paths
+
+Version 1.0.1
+-------------
+- Using d.yimg.com for "d:" prefixed file paths
+
+Version 1.0.0
+-------------
+- Initial version
+
diff --git a/plugins/experimental/esi/combo_handler.cc b/plugins/experimental/esi/combo_handler.cc
new file mode 100644
index 00000000..c2ecacee
--- /dev/null
+++ b/plugins/experimental/esi/combo_handler.cc
@@ -0,0 +1,989 @@
+/** @file
+
+    ATS plugin to do combo handling.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include <list>
+#include <string>
+#include <sstream>
+#include <vector>
+#include <time.h>
+#include <pthread.h>
+#include <arpa/inet.h>
+
+#include "ts/ts.h"
+#include "ts/experimental.h"
+#include "ts/remap.h"
+#include "ink_defs.h"
+
+#include "HttpDataFetcherImpl.h"
+#include "gzip.h"
+#include "Utils.h"
+
+using namespace std;
+using namespace EsiLib;
+
+#define DEBUG_TAG "combo_handler"
+
+#define MAX_FILE_COUNT 30
+#define MAX_QUERY_LENGTH 3000
+
+int arg_idx;
+static string SIG_KEY_NAME;
+static vector<string> HEADER_WHITELIST;
+
+#define DEFAULT_COMBO_HANDLER_PATH "admin/v1/combo"
+static string COMBO_HANDLER_PATH;
+static int COMBO_HANDLER_PATH_SIZE;
+
+#define LOG_ERROR(fmt, args...) do {                                    \
+    TSError("[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+    TSDebug(DEBUG_TAG, "[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+  } while (0)
+
+#define LOG_DEBUG(fmt, args...) do {                                    \
+    TSDebug(DEBUG_TAG, "[%s:%d] [%s] DEBUG: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+  } while (0)
+
+typedef list<string> StringList;
+
+struct ClientRequest {
+  TSHttpStatus status;
+  const sockaddr *client_addr;
+  StringList file_urls;
+  bool gzip_accepted;
+  string defaultBucket; // default Bucket will be set to HOST header
+  ClientRequest()
+    : status(TS_HTTP_STATUS_OK), client_addr(NULL), gzip_accepted(false), defaultBucket("l") { };
+};
+
+struct InterceptData {
+  TSVConn net_vc;
+  TSCont contp;
+
+  struct IoHandle {
+    TSVIO vio;
+    TSIOBuffer buffer;
+    TSIOBufferReader reader;
+
+    IoHandle()
+      : vio(0), buffer(0), reader(0) { };
+
+    ~IoHandle() {
+      if (reader) {
+        TSIOBufferReaderFree(reader);
+      }
+      if (buffer) {
+        TSIOBufferDestroy(buffer);
+      }
+    };
+  };
+
+  IoHandle input;
+  IoHandle output;
+  TSHttpParser http_parser;
+
+  string body;
+  TSMBuffer req_hdr_bufp;
+  TSMLoc req_hdr_loc;
+  bool req_hdr_parsed;
+  bool initialized;
+  ClientRequest creq;
+  HttpDataFetcherImpl *fetcher;
+  bool read_complete;
+  bool write_complete;
+  string gzipped_data;
+
+  InterceptData(TSCont cont)
+    : net_vc(0), contp(cont), input(), output(), req_hdr_bufp(0), req_hdr_loc(0), req_hdr_parsed(false),
+      initialized(false), fetcher(0), read_complete(false), write_complete(false) {
+    http_parser = TSHttpParserCreate();
+  }
+
+  bool init(TSVConn vconn);
+  void setupWrite();
+
+  ~InterceptData();
+};
+
+bool
+InterceptData::init(TSVConn vconn)
+{
+  if (initialized) {
+    LOG_ERROR("InterceptData already initialized!");
+    return false;
+  }
+
+  net_vc = vconn;
+
+  input.buffer = TSIOBufferCreate();
+  input.reader = TSIOBufferReaderAlloc(input.buffer);
+  input.vio = TSVConnRead(net_vc, contp, input.buffer, INT64_MAX);
+
+  req_hdr_bufp = TSMBufferCreate();
+  req_hdr_loc = TSHttpHdrCreate(req_hdr_bufp);
+  TSHttpHdrTypeSet(req_hdr_bufp, req_hdr_loc, TS_HTTP_TYPE_REQUEST);
+
+  fetcher = new HttpDataFetcherImpl(contp, creq.client_addr, "combohandler_fetcher");
+
+  initialized = true;
+  LOG_DEBUG("InterceptData initialized!");
+  return true;
+}
+
+void
+InterceptData::setupWrite()
+{
+  TSAssert(output.buffer == 0);
+  output.buffer = TSIOBufferCreate();
+  output.reader = TSIOBufferReaderAlloc(output.buffer);
+  output.vio = TSVConnWrite(net_vc, contp, output.reader, INT64_MAX);
+}
+
+InterceptData::~InterceptData()
+{
+  if (req_hdr_loc) {
+    TSHandleMLocRelease(req_hdr_bufp, TS_NULL_MLOC, req_hdr_loc);
+  }
+  if (req_hdr_bufp) {
+    TSMBufferDestroy(req_hdr_bufp);
+  }
+  if (fetcher) {
+    delete fetcher;
+  }
+  TSHttpParserDestroy(http_parser);
+  if (net_vc) {
+    TSVConnClose(net_vc);
+  }
+}
+
+// forward declarations
+static int handleReadRequestHeader(TSCont contp, TSEvent event, void *edata);
+static bool isComboHandlerRequest(TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc url_loc);
+static void getClientRequest(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc url_loc,
+                             ClientRequest &creq);
+static void parseQueryParameters(const char *query, int query_len, ClientRequest &creq);
+static void checkGzipAcceptance(TSMBuffer bufp, TSMLoc hdr_loc, ClientRequest &creq);
+static int handleServerEvent(TSCont contp, TSEvent event, void *edata);
+static bool initRequestProcessing(InterceptData &int_data, void *edata, bool &write_response);
+static bool readInterceptRequest(InterceptData &int_data);
+static bool writeResponse(InterceptData &int_data);
+static bool writeErrorResponse(InterceptData &int_data, int &n_bytes_written);
+static bool writeStandardHeaderFields(InterceptData &int_data, int &n_bytes_written);
+static void prepareResponse(InterceptData &int_data, ByteBlockList &body_blocks, string &resp_header_fields);
+static bool getContentType(TSMBuffer bufp, TSMLoc hdr_loc, string &resp_header_fields);
+static bool getDefaultBucket(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc hdr_obj, ClientRequest &creq);
+
+// libesi TLS key.
+pthread_key_t threadKey = 0;
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  if ((argc > 1) && (strcmp(argv[1], "-") != 0)) {
+    COMBO_HANDLER_PATH =  argv[1];
+    if (COMBO_HANDLER_PATH == "/") {
+      COMBO_HANDLER_PATH.clear();
+    } else {
+      if (COMBO_HANDLER_PATH[0] == '/') {
+        COMBO_HANDLER_PATH.erase(0, 1);
+      }
+      if (COMBO_HANDLER_PATH[COMBO_HANDLER_PATH.size() - 1] == '/') {
+        COMBO_HANDLER_PATH.erase(COMBO_HANDLER_PATH.size() - 1, 1);
+      }
+    }
+  } else {
+    COMBO_HANDLER_PATH = DEFAULT_COMBO_HANDLER_PATH;
+  }
+  COMBO_HANDLER_PATH_SIZE = static_cast<int>(COMBO_HANDLER_PATH.size());
+  LOG_DEBUG("Combo handler path is [%s]", COMBO_HANDLER_PATH.c_str());
+
+  SIG_KEY_NAME = ((argc > 2) && (strcmp(argv[2], "-") != 0)) ? argv[2] : "";
+  LOG_DEBUG("Signature key is [%s]", SIG_KEY_NAME.c_str());
+
+  if ((argc > 3) && (strcmp(argv[3], "-") != 0)) {
+    stringstream strstream(argv[3]);
+    string header;
+    while (getline(strstream, header, ':')) {
+      HEADER_WHITELIST.push_back(header);
+    }
+  }
+
+  for (unsigned int i = 0; i < HEADER_WHITELIST.size(); i++) {
+    LOG_DEBUG("WhiteList: %s", HEADER_WHITELIST[i].c_str());
+  }
+
+  TSReleaseAssert(pthread_key_create(&threadKey, NULL) == 0);
+
+  TSCont rrh_contp = TSContCreate(handleReadRequestHeader, NULL);
+  if (!rrh_contp) {
+    LOG_ERROR("Could not create read request header continuation");
+    return;
+  }
+
+  TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, rrh_contp);
+
+  if (TSHttpArgIndexReserve(DEBUG_TAG, "will save plugin-enable flag here", &arg_idx) != TS_SUCCESS) {
+    LOG_ERROR("failed to reserve private data slot");
+    return;
+  } else {
+    LOG_DEBUG("arg_idx: %d", arg_idx);
+  }
+
+  Utils::init(&TSDebug, &TSError);
+  LOG_DEBUG("Plugin started");
+}
+
+/*
+  Handle TS_EVENT_HTTP_OS_DNS event after TS_EVENT_HTTP_POST_REMAP and
+  TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE in order to make this plugin
+  "per-remap configurable", that is, we enable combo for specific channels,
+  and disable for other channels.
+
+  In yahoo's original code, this function handle TS_EVENT_HTTP_READ_REQUEST_HDR.
+  Because TS_EVENT_HTTP_READ_REQUEST_HDR is before TSRemapDoRemap, we can not
+  read "plugin_enable" flag in the READ_REQUEST_HDR event.
+*/
+static int
+handleReadRequestHeader(TSCont /* contp ATS_UNUSED */, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = static_cast<TSHttpTxn>(edata);
+
+  if (event != TS_EVENT_HTTP_OS_DNS) {
+    LOG_ERROR("unknown event for this plugin %d", event);
+    return 0;
+  }
+
+  if (1 != reinterpret_cast<intptr_t>(TSHttpTxnArgGet(txnp, arg_idx))) {
+    LOG_DEBUG("combo is disabled for this channel");
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  }
+  
+  LOG_DEBUG("combo is enabled for this channel");
+  LOG_DEBUG("handling TS_EVENT_HTTP_OS_DNS event...");
+
+  TSEvent reenable_to_event = TS_EVENT_HTTP_CONTINUE;
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) == TS_SUCCESS) {
+    TSMLoc url_loc;
+    if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) == TS_SUCCESS) {
+      if (isComboHandlerRequest(bufp, hdr_loc, url_loc)) {
+        TSCont contp = TSContCreate(handleServerEvent, TSMutexCreate());
+        if (!contp) {
+          LOG_ERROR("[%s] Could not create intercept request", __FUNCTION__);
+          reenable_to_event = TS_EVENT_HTTP_ERROR;
+        } else {
+          TSHttpTxnServerIntercept(contp, txnp);
+          InterceptData *int_data = new InterceptData(contp);
+          TSContDataSet(contp, int_data);
+          // todo: check if these two cacheable sets are required
+          TSHttpTxnReqCacheableSet(txnp, 1);
+          TSHttpTxnRespCacheableSet(txnp, 1);
+          getClientRequest(txnp, bufp, hdr_loc, url_loc, int_data->creq);
+          LOG_DEBUG("Setup server intercept to handle client request");
+        }
+      }
+      TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+    } else {
+      LOG_ERROR("Could not get request URL");
+    }
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  } else {
+    LOG_ERROR("Could not get client request");
+  }
+
+  TSHttpTxnReenable(txnp, reenable_to_event);
+  return 1;
+}
+
+static bool
+isComboHandlerRequest(TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc url_loc)
+{
+  int method_len;
+  bool retval = false;
+  const char *method = TSHttpHdrMethodGet(bufp, hdr_loc, &method_len);
+
+  if (!method) {
+    LOG_ERROR("Could not obtain method!");
+  } else {
+    if ((method_len != TS_HTTP_LEN_GET) || (strncasecmp(method, TS_HTTP_METHOD_GET, TS_HTTP_LEN_GET) != 0)) {
+      LOG_DEBUG("Unsupported method [%.*s]", method_len, method);
+    } else {
+      retval = true;
+    }
+
+    if (retval) {
+      int path_len;
+      const char *path = TSUrlPathGet(bufp, url_loc, &path_len);
+      if (!path) {
+        LOG_ERROR("Could not get path from request URL");
+        retval = false;
+      } else {
+        retval = (path_len == COMBO_HANDLER_PATH_SIZE) &&
+          (strncasecmp(path, COMBO_HANDLER_PATH.c_str(), COMBO_HANDLER_PATH_SIZE) == 0);
+        LOG_DEBUG("Path [%.*s] is %s combo handler path", path_len, path, (retval ? "a" : "not a"));
+      }
+    }
+  }
+  return retval;
+}
+
+static bool
+getDefaultBucket(TSHttpTxn /* txnp ATS_UNUSED */, TSMBuffer bufp, TSMLoc hdr_obj, ClientRequest &creq)
+{
+  LOG_DEBUG("In getDefaultBucket");
+  TSMLoc field_loc;
+  const char* host;
+  int host_len = 0;
+  bool defaultBucketFound = false;
+
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_obj, TS_MIME_FIELD_HOST, -1);
+  if (field_loc == TS_NULL_MLOC) {
+    LOG_ERROR("Host field not found.");
+    return false;
+  }
+
+  host = TSMimeHdrFieldValueStringGet(bufp, hdr_obj, field_loc, -1, &host_len);
+  if (!host || host_len <= 0) {
+    LOG_ERROR("Error Extracting Host Header");
+    TSHandleMLocRelease (bufp, hdr_obj, field_loc);
+    return false;
+  }
+
+  LOG_DEBUG("host: %.*s", host_len, host);
+  creq.defaultBucket = string(host, host_len);
+  defaultBucketFound = true;
+
+  /*
+  for(int i = 0 ; i < host_len; i++)
+    {
+      if (host[i] == '.')
+        {
+          creq.defaultBucket = string(host, i);
+          defaultBucketFound = true;
+          break;
+        }
+    }
+  */
+
+  TSHandleMLocRelease (bufp, hdr_obj, field_loc);
+
+  LOG_DEBUG("defaultBucket: %s", creq.defaultBucket.data());
+  return defaultBucketFound;
+}
+
+static void
+getClientRequest(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc hdr_loc, TSMLoc url_loc, ClientRequest &creq)
+{
+  int query_len;
+  const char *query = TSUrlHttpQueryGet(bufp, url_loc, &query_len);
+
+  if (!query) {
+    LOG_ERROR("Could not get query from request URL");
+    creq.status = TS_HTTP_STATUS_BAD_REQUEST;
+    return;
+  } else {
+    if (!getDefaultBucket(txnp, bufp, hdr_loc, creq))
+      {
+        LOG_ERROR("failed getting Default Bucket for the request");
+        return;
+      }
+    if (query_len > MAX_QUERY_LENGTH) {
+      creq.status = TS_HTTP_STATUS_BAD_REQUEST;
+      LOG_ERROR("querystring too long");
+      return;
+    }
+    parseQueryParameters(query, query_len, creq);
+    creq.client_addr = TSHttpTxnClientAddrGet(txnp);
+    checkGzipAcceptance(bufp, hdr_loc, creq);
+  }
+}
+
+static void
+parseQueryParameters(const char *query, int query_len, ClientRequest &creq)
+{
+  creq.status = TS_HTTP_STATUS_OK;
+  int param_start_pos = 0;
+  bool sig_verified = false;
+  int colon_pos = -1;
+  string file_url("http://localhost/");
+  size_t file_base_url_size = file_url.size();
+  const char *common_prefix = 0;
+  int common_prefix_size = 0;
+  const char *common_prefix_path = 0;
+  int common_prefix_path_size = 0;
+
+  for (int i = 0; i <= query_len; ++i) {
+    if ((i == query_len) || (query[i] == '&')) {
+      int param_len = i - param_start_pos;
+      if (param_len) {
+        const char *param = query + param_start_pos;
+        if ((param_len >= 4) && (strncmp(param, "sig=", 4) == 0)) {
+          if (SIG_KEY_NAME.size()) {
+            if (!param_start_pos) {
+              LOG_DEBUG("Signature cannot be the first parameter in query [%.*s]", query_len, query);
+            } else if (param_len == 4) {
+              LOG_DEBUG("Signature empty in query [%.*s]", query_len, query);
+            } else {
+              // TODO - really verify the signature
+              LOG_DEBUG("Verified signature successfully");
+              sig_verified = true;
+            }
+            if (!sig_verified) {
+              LOG_DEBUG("Signature [%.*s] on query [%.*s] is invalid", param_len - 4, param + 4,
+                        param_start_pos, query);
+            }
+          } else {
+            LOG_DEBUG("Verification not configured; ignoring signature...");
+          }
+          break; // nothing useful after the signature
+      }
+      if ((param_len >= 2) && (param[0] == 'p') && (param[1] == '=')) {
+        common_prefix_size = param_len - 2;
+        common_prefix_path_size = 0;
+        if (common_prefix_size) {
+          common_prefix = param + 2;
+          for (int i = 0; i < common_prefix_size; ++i) {
+            if (common_prefix[i] == ':') {
+              common_prefix_path = common_prefix;
+              common_prefix_path_size = i;
+              ++i; // go beyond the ':'
+              common_prefix += i;
+              common_prefix_size -= i;
+              break;
+            }
+          }
+        }
+        LOG_DEBUG("Common prefix is [%.*s], common prefix path is [%.*s]", common_prefix_size, common_prefix,
+                  common_prefix_path_size, common_prefix_path);
+      }
+      else {
+        if (common_prefix_path_size) {
+          if (colon_pos >= param_start_pos) { // we have a colon in this param as well?
+            LOG_ERROR("Ambiguous 'bucket': [%.*s] specified in common prefix and [%.*s] specified in "
+                      "current parameter [%.*s]", common_prefix_path_size, common_prefix_path,
+                      colon_pos - param_start_pos, param, param_len, param);
+            creq.file_urls.clear();
+            break;
+          }
+          file_url.append(common_prefix_path, common_prefix_path_size);
+        }
+        else if (colon_pos >= param_start_pos) { // we have a colon
+          if ((colon_pos == param_start_pos) || (colon_pos == (i - 1))) {
+            LOG_ERROR("Colon-separated path [%.*s] has empty part(s)", param_len, param);
+            creq.file_urls.clear();
+            break;
+          }
+          file_url.append(param, colon_pos - param_start_pos); // appending pre ':' part first
+
+          // modify these to point to the "actual" file path
+          param_start_pos = colon_pos + 1;
+          param_len = i - param_start_pos;
+          param = query + param_start_pos;
+        } else {
+          file_url += creq.defaultBucket; // default path
+        }
+        file_url += '/';
+        if (common_prefix_size) {
+          file_url.append(common_prefix, common_prefix_size);
+        }
+        file_url.append(param, param_len);
+        creq.file_urls.push_back(file_url);
+        LOG_DEBUG("Added file path [%s]", file_url.c_str());
+        file_url.resize(file_base_url_size);
+      }
+    }
+    param_start_pos = i + 1;
+  } else if (query[i] == ':') {
+    colon_pos = i;
+  }
+}
+if (!creq.file_urls.size()) {
+  creq.status = TS_HTTP_STATUS_BAD_REQUEST;
+ } else if (SIG_KEY_NAME.size() && !sig_verified) {
+  LOG_DEBUG("Invalid/empty signature found; Need valid signature");
+  creq.status = TS_HTTP_STATUS_FORBIDDEN;
+  creq.file_urls.clear();
+ }
+
+if (creq.file_urls.size() > MAX_FILE_COUNT) {
+  creq.status = TS_HTTP_STATUS_BAD_REQUEST;
+  LOG_ERROR("too many files in url");
+  creq.file_urls.clear();
+}
+
+}
+
+static void
+checkGzipAcceptance(TSMBuffer bufp, TSMLoc hdr_loc, ClientRequest &creq)
+{
+  creq.gzip_accepted = false;
+  TSMLoc field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_ACCEPT_ENCODING,
+                                          TS_MIME_LEN_ACCEPT_ENCODING);
+  if (field_loc != TS_NULL_MLOC) {
+    const char *value;
+    int value_len;
+    int n_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+
+    for (int i = 0; i < n_values; ++i) {
+      value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, i, &value_len);
+      if (value) {
+        if ((value_len == TS_HTTP_LEN_GZIP) && (strncasecmp(value, TS_HTTP_VALUE_GZIP, value_len) == 0)) {
+          creq.gzip_accepted = true;
+        }
+      } else {
+        LOG_DEBUG("Error while getting value # %d of header [%.*s]", i, TS_MIME_LEN_ACCEPT_ENCODING,
+                  TS_MIME_FIELD_ACCEPT_ENCODING);
+      }
+      if (creq.gzip_accepted) {
+        break;
+      }
+    }
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  }
+  LOG_DEBUG("Client %s gzip encoding", (creq.gzip_accepted ? "accepts" : "does not accept"));
+}
+
+static int
+handleServerEvent(TSCont contp, TSEvent event, void *edata)
+{
+  InterceptData *int_data = static_cast<InterceptData *>(TSContDataGet(contp));
+  bool write_response = false;
+
+  switch (event) {
+  case TS_EVENT_NET_ACCEPT_FAILED:
+    LOG_DEBUG("Received net accept failed event; going to abort continuation");
+    int_data->read_complete = int_data->write_complete = true;
+    break;
+
+  case TS_EVENT_NET_ACCEPT:
+    LOG_DEBUG("Received net accept event");
+    if (!initRequestProcessing(*int_data, edata, write_response)) {
+      LOG_ERROR("Could not initialize request processing");
+      return 0;
+    }
+    break;
+
+  case TS_EVENT_VCONN_READ_READY:
+    LOG_DEBUG("Received read ready event");
+    if (!readInterceptRequest(*int_data)) {
+      LOG_ERROR("Error while reading from input vio");
+      return 0;
+    }
+    break;
+
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+    LOG_DEBUG("Received read complete/eos event %d", event);
+    int_data->read_complete = true;
+    break;
+
+  case TS_EVENT_VCONN_WRITE_READY:
+    LOG_DEBUG("Received write ready event");
+    break;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    LOG_DEBUG("Received write complete event");
+    int_data->write_complete = true;
+    break;
+
+  case TS_EVENT_ERROR:
+    LOG_ERROR("Received error event!");
+    break;
+
+  default:
+    if (int_data->fetcher && int_data->fetcher->isFetchEvent(event)) {
+      if (!int_data->fetcher->handleFetchEvent(event, edata)) {
+        LOG_ERROR("Couldn't handle fetch request event %d", event);
+      }
+      write_response = int_data->fetcher->isFetchComplete();
+    } else {
+      LOG_DEBUG("Unexpected event %d", event);
+    }
+    break;
+  }
+
+  if (write_response) {
+    if (!writeResponse(*int_data)) {
+      LOG_ERROR("Couldn't write response");
+      int_data->write_complete = true;
+    } else {
+      LOG_DEBUG("Wrote response successfully");
+    }
+  }
+
+  if (int_data->read_complete && int_data->write_complete) {
+    LOG_DEBUG("Completed request processing. Shutting down...");
+    delete int_data;
+    TSContDestroy(contp);
+  }
+
+  return 1;
+}
+
+static bool
+initRequestProcessing(InterceptData &int_data, void *edata, bool &write_response)
+{
+  TSAssert(int_data.initialized == false);
+  if (!int_data.init(static_cast<TSVConn>(edata))) {
+    LOG_ERROR("Could not initialize intercept data!");
+    return false;
+  }
+
+  if (int_data.creq.status == TS_HTTP_STATUS_OK) {
+    for (StringList::iterator iter = int_data.creq.file_urls.begin();
+         iter != int_data.creq.file_urls.end(); ++iter) {
+      if (!int_data.fetcher->addFetchRequest(*iter)) {
+        LOG_ERROR("Couldn't add fetch request for URL [%s]", iter->c_str());
+      } else {
+        LOG_DEBUG("Added fetch request for URL [%s]", iter->c_str());
+      }
+    }
+  } else {
+    LOG_DEBUG("Client request status [%d] not ok; Not fetching URLs", int_data.creq.status);
+    write_response = true;
+  }
+  return true;
+}
+
+static bool
+readInterceptRequest(InterceptData &int_data)
+{
+  TSAssert(!int_data.read_complete);
+  int avail = TSIOBufferReaderAvail(int_data.input.reader);
+  if (avail == TS_ERROR) {
+    LOG_ERROR("Error while getting number of bytes available");
+    return false;
+  }
+
+  int consumed = 0;
+  if (avail > 0) {
+    int64_t data_len;
+    const char *data;
+    TSIOBufferBlock block = TSIOBufferReaderStart(int_data.input.reader);
+    while (block != NULL) {
+      data = TSIOBufferBlockReadStart(block, int_data.input.reader, &data_len);
+      const char *endptr = data + data_len;
+      if (TSHttpHdrParseReq(int_data.http_parser, int_data.req_hdr_bufp, int_data.req_hdr_loc,
+                             &data, endptr) == TS_PARSE_DONE) {
+        int_data.read_complete = true;
+      }
+      consumed += data_len;
+      block = TSIOBufferBlockNext(block);
+    }
+  }
+  LOG_DEBUG("Consumed %d bytes from input vio", consumed);
+
+  TSIOBufferReaderConsume(int_data.input.reader, consumed);
+
+  // Modify the input VIO to reflect how much data we've completed.
+  TSVIONDoneSet(int_data.input.vio, TSVIONDoneGet(int_data.input.vio) + consumed);
+
+  if (!int_data.read_complete) {
+    LOG_DEBUG("Re-enabling input VIO as request header not completely read yet");
+    TSVIOReenable(int_data.input.vio);
+  }
+  return true;
+}
+
+static const string OK_REPLY_LINE("HTTP/1.0 200 OK\r\n");
+static const string BAD_REQUEST_RESPONSE("HTTP/1.0 400 Bad Request\r\n\r\n");
+static const string ERROR_REPLY_RESPONSE("HTTP/1.0 500 Internal Server Error\r\n\r\n");
+static const string FORBIDDEN_RESPONSE("HTTP/1.0 403 Forbidden\r\n\r\n");
+static const char GZIP_ENCODING_FIELD[] = { "Content-Encoding: gzip\r\n" };
+static const int GZIP_ENCODING_FIELD_SIZE = sizeof(GZIP_ENCODING_FIELD) - 1;
+
+static bool
+writeResponse(InterceptData &int_data)
+{
+  int_data.setupWrite();
+
+  ByteBlockList body_blocks;
+  string resp_header_fields;
+  prepareResponse(int_data, body_blocks, resp_header_fields);
+
+  int n_bytes_written = 0;
+  if (int_data.creq.status != TS_HTTP_STATUS_OK) {
+    if (!writeErrorResponse(int_data, n_bytes_written)) {
+      LOG_ERROR("Couldn't write response error");
+      return false;
+    }
+  } else {
+    n_bytes_written = OK_REPLY_LINE.size();
+    if (TSIOBufferWrite(int_data.output.buffer, OK_REPLY_LINE.data(), n_bytes_written) == TS_ERROR) {
+      LOG_ERROR("Error while writing reply line");
+      return false;
+    }
+
+    if (!writeStandardHeaderFields(int_data, n_bytes_written)) {
+      LOG_ERROR("Could not write standard header fields");
+      return false;
+    }
+
+    if (resp_header_fields.size()) {
+      if (TSIOBufferWrite(int_data.output.buffer, resp_header_fields.data(),
+                           resp_header_fields.size()) == TS_ERROR) {
+        LOG_ERROR("Error while writing additional response header fields");
+        return false;
+      }
+      n_bytes_written += resp_header_fields.size();
+    }
+
+    if (TSIOBufferWrite(int_data.output.buffer, "\r\n", 2) == TS_ERROR) {
+      LOG_ERROR("Error while writing header terminator");
+      return false;
+    }
+    n_bytes_written += 2;
+
+    for (ByteBlockList::iterator iter = body_blocks.begin(); iter != body_blocks.end(); ++iter) {
+      if (TSIOBufferWrite(int_data.output.buffer, iter->data, iter->data_len) == TS_ERROR) {
+        LOG_ERROR("Error while writing content");
+        return false;
+      }
+      n_bytes_written += iter->data_len;
+    }
+  }
+
+  LOG_DEBUG("Wrote reply of size %d", n_bytes_written);
+  TSVIONBytesSet(int_data.output.vio, n_bytes_written);
+
+  TSVIOReenable(int_data.output.vio);
+  return true;
+}
+
+static void
+prepareResponse(InterceptData &int_data, ByteBlockList &body_blocks, string &resp_header_fields)
+{
+  bool got_content_type = false;
+
+  if (int_data.creq.status == TS_HTTP_STATUS_OK) {
+    HttpDataFetcherImpl::ResponseData resp_data;
+    TSMLoc field_loc;
+    time_t expires_time;
+    bool got_expires_time = false;
+    int num_headers = HEADER_WHITELIST.size();
+    int flags_list[num_headers];
+
+    for (int i = 0; i < num_headers; i++) {
+      flags_list[i] = 0;
+    }
+
+    for (StringList::iterator iter = int_data.creq.file_urls.begin(); iter != int_data.creq.file_urls.end();
+         ++iter) {
+      if (int_data.fetcher->getData(*iter, resp_data) && resp_data.status == TS_HTTP_STATUS_OK) {
+        body_blocks.push_back(ByteBlock(resp_data.content, resp_data.content_len));
+        if (!got_content_type) {
+          got_content_type = getContentType(resp_data.bufp, resp_data.hdr_loc, resp_header_fields);
+        }
+        field_loc = TSMimeHdrFieldFind(resp_data.bufp, resp_data.hdr_loc, TS_MIME_FIELD_EXPIRES,
+                                        TS_MIME_LEN_EXPIRES);
+        if (field_loc != TS_NULL_MLOC) {
+          time_t curr_field_expires_time;
+          int n_values = TSMimeHdrFieldValuesCount(resp_data.bufp, resp_data.hdr_loc, field_loc);
+          if ((n_values != TS_ERROR) && (n_values > 0)) {
+            curr_field_expires_time = TSMimeHdrFieldValueDateGet(resp_data.bufp, resp_data.hdr_loc, field_loc);
+            if (!got_expires_time) {
+              expires_time = curr_field_expires_time;
+              got_expires_time = true;
+            } else if (curr_field_expires_time < expires_time) {
+              expires_time = curr_field_expires_time;
+            }
+          }
+          TSHandleMLocRelease(resp_data.bufp, resp_data.hdr_loc, field_loc);
+        }
+
+        for (int i = 0; i < num_headers; i++) {
+          if (flags_list[i]) {
+            continue;
+          }
+
+          const string& header = HEADER_WHITELIST[i];
+
+          field_loc = TSMimeHdrFieldFind(resp_data.bufp, resp_data.hdr_loc, header.c_str(), header.size());
+          if (field_loc != TS_NULL_MLOC) {
+            int hdr_len = 0;
+            const char* hdr = TSMimeHdrFieldValueStringGet(resp_data.bufp, resp_data.hdr_loc, field_loc, 0, &hdr_len);
+            if (hdr) {
+              string hdr_value = string(hdr, hdr_len);
+              resp_header_fields.append(header + ": " + hdr_value + "\r\n");
+              flags_list[i] = 1;
+            }
+            TSHandleMLocRelease(resp_data.bufp, resp_data.hdr_loc, field_loc);
+          }
+        }
+
+      } else {
+        LOG_ERROR("Could not get content for requested URL [%s]", iter->c_str());
+        int_data.creq.status = TS_HTTP_STATUS_BAD_REQUEST;
+        break;
+      }
+    }
+    if (int_data.creq.status == TS_HTTP_STATUS_OK) {
+      if (got_expires_time) {
+        if (expires_time <= 0) {
+          resp_header_fields.append("Expires: 0\r\n");
+        } else {
+          char line_buf[128];
+          int line_size = strftime(line_buf, 128, "Expires: %a, %d %b %Y %T GMT\r\n", gmtime(&expires_time));
+          resp_header_fields.append(line_buf, line_size);
+        }
+      }
+      LOG_DEBUG("Prepared response header field\n%s", resp_header_fields.c_str());
+    }
+  }
+
+  if ((int_data.creq.status == TS_HTTP_STATUS_OK) && int_data.creq.gzip_accepted) {
+    if (!gzip(body_blocks, int_data.gzipped_data)) {
+      LOG_ERROR("Could not gzip content!");
+      int_data.creq.status = TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+    } else {
+      body_blocks.clear();
+      body_blocks.push_back(ByteBlock(int_data.gzipped_data.data(), int_data.gzipped_data.size()));
+      resp_header_fields.append(GZIP_ENCODING_FIELD, GZIP_ENCODING_FIELD_SIZE);
+    }
+  }
+}
+
+static bool
+getContentType(TSMBuffer bufp, TSMLoc hdr_loc, string &resp_header_fields)
+{
+  bool retval = false;
+  TSMLoc field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE,
+                                          TS_MIME_LEN_CONTENT_TYPE);
+  if (field_loc != TS_NULL_MLOC) {
+    bool values_added = false;
+    const char *value;
+    int value_len;
+    int n_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+    for (int i = 0; i < n_values; ++i) {
+      value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, i, &value_len);
+      if (!values_added) {
+        resp_header_fields.append("Content-Type: ");
+        values_added = true;
+      } else {
+        resp_header_fields.append(", ");
+      }
+      resp_header_fields.append(value, value_len);
+    }
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    if (values_added) {
+      resp_header_fields.append("\r\n");
+      retval = true;
+    }
+  }
+  return retval;
+}
+
+static const char INVARIANT_FIELD_LINES[] = { "Vary: Accept-Encoding\r\n"
+                                              "Cache-Control: max-age=315360000\r\n" };
+static const char INVARIANT_FIELD_LINES_SIZE = sizeof(INVARIANT_FIELD_LINES) - 1;
+
+static bool
+writeStandardHeaderFields(InterceptData &int_data, int &n_bytes_written)
+{
+  if (TSIOBufferWrite(int_data.output.buffer, INVARIANT_FIELD_LINES,
+                       INVARIANT_FIELD_LINES_SIZE) == TS_ERROR) {
+    LOG_ERROR("Error while writing invariant fields");
+    return false;
+  }
+  n_bytes_written += INVARIANT_FIELD_LINES_SIZE;
+  time_t time_now = static_cast<time_t>(TShrtime() / 1000000000); // it returns nanoseconds!
+  char last_modified_line[128];
+  int last_modified_line_size = strftime(last_modified_line, 128, "Last-Modified: %a, %d %b %Y %T GMT\r\n",
+                                         gmtime(&time_now));
+  if (TSIOBufferWrite(int_data.output.buffer, last_modified_line, last_modified_line_size) == TS_ERROR) {
+    LOG_ERROR("Error while writing last-modified fields");
+    return false;
+  }
+  n_bytes_written += last_modified_line_size;
+  return true;
+}
+
+static bool
+writeErrorResponse(InterceptData &int_data, int &n_bytes_written)
+{
+  const string *response;
+  switch (int_data.creq.status) {
+  case TS_HTTP_STATUS_BAD_REQUEST:
+    response = &BAD_REQUEST_RESPONSE;
+    break;
+  case TS_HTTP_STATUS_FORBIDDEN:
+    response = &FORBIDDEN_RESPONSE;
+    break;
+  default:
+    response = &ERROR_REPLY_RESPONSE;
+    break;
+  }
+  if (TSIOBufferWrite(int_data.output.buffer, response->data(), response->size()) == TS_ERROR) {
+    LOG_ERROR("Error while writing error response");
+    return false;
+  }
+  n_bytes_written += response->size();
+  return true;
+}
+
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo* rri)
+{
+  TSHttpTxnArgSet(rh, arg_idx, (void*)1); /* Save for later hooks */
+  return TSREMAP_NO_REMAP;  /* Continue with next remap plugin in chain */
+}
+
+/*
+  Initialize the plugin as a remap plugin.
+*/
+TSReturnCode
+TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[TSRemapInit] - Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    strncpy(errbuf, "[TSRemapInit] - Incorrect size of TSRemapInterface structure", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  TSDebug(DEBUG_TAG, "%s plugin's remap part is initialized", DEBUG_TAG);
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** ih, char* errbuf,
+                   int errbuf_size)
+{
+  *ih = NULL;
+
+  TSDebug(DEBUG_TAG, "%s Remap Instance for '%s' created", DEBUG_TAG, argv[0]);
+  return TS_SUCCESS;
+}
+
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  return;
+}
diff --git a/plugins/experimental/esi/esi.cc b/plugins/experimental/esi/esi.cc
new file mode 100644
index 00000000..d8665cbf
--- /dev/null
+++ b/plugins/experimental/esi/esi.cc
@@ -0,0 +1,1811 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_defs.h"   
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include <string>
+#include <list>
+#include <arpa/inet.h>
+#include <pthread.h>
+#include <getopt.h>
+
+#include "ts/ts.h"
+#include "ts/experimental.h"
+#include "ts/remap.h"
+
+#include "lib/Utils.h"
+#include "lib/gzip.h"
+#include "EsiGzip.h"
+#include "EsiProcessor.h"
+#include "HttpDataFetcher.h"
+#include "HandlerManager.h"
+#include "serverIntercept.h"
+#include "Stats.h"
+#include "HttpDataFetcherImpl.h"
+#include "FailureInfo.h"
+using std::string;
+using std::list;
+using namespace EsiLib;
+using namespace Stats;
+
+struct OptionInfo
+{
+  bool packed_node_support;
+  bool private_response;
+  bool disable_gzip_output;
+  bool first_byte_flush;
+};
+
+static HandlerManager *gHandlerManager = NULL;
+
+#define DEBUG_TAG "plugin_esi"
+#define PROCESSOR_DEBUG_TAG "plugin_esi_processor"
+#define GZIP_DEBUG_TAG "plugin_esi_gzip"
+#define PARSER_DEBUG_TAG "plugin_esi_parser"
+#define FETCHER_DEBUG_TAG "plugin_esi_fetcher"
+#define VARS_DEBUG_TAG "plugin_esi_vars"
+#define HANDLER_MGR_DEBUG_TAG "plugin_esi_handler_mgr"
+#define EXPR_DEBUG_TAG VARS_DEBUG_TAG
+
+#define MIME_FIELD_XESI "X-Esi"
+#define MIME_FIELD_XESI_LEN 5
+
+#define HTTP_VALUE_PRIVATE_EXPIRES "-1"
+#define HTTP_VALUE_PRIVATE_CC      "max-age=0, private"
+
+enum DataType { DATA_TYPE_RAW_ESI = 0, DATA_TYPE_GZIPPED_ESI = 1, DATA_TYPE_PACKED_ESI = 2 };
+static const char *DATA_TYPE_NAMES_[] = {
+  "RAW_ESI",
+  "GZIPPED_ESI",
+  "PACKED_ESI"
+};
+
+static const char *HEADER_MASK_PREFIX = "Mask-";
+static const int HEADER_MASK_PREFIX_SIZE = 5;
+
+struct ContData
+{
+  enum STATE { READING_ESI_DOC, FETCHING_DATA, PROCESSING_COMPLETE };
+  STATE curr_state;
+  TSVIO input_vio;
+  TSIOBufferReader input_reader;
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+  Variables *esi_vars;
+  HttpDataFetcherImpl *data_fetcher;
+  EsiProcessor *esi_proc;
+  EsiGzip *esi_gzip;
+  TSCont contp;
+  TSHttpTxn txnp;
+  const struct OptionInfo *option_info;
+  char *request_url;
+  sockaddr const* client_addr;
+  DataType input_type;
+  string packed_node_list;
+  string gzipped_data;
+  char debug_tag[32];
+  bool gzip_output;
+  bool initialized;
+  bool xform_closed;
+  bool intercept_header;
+  bool cache_txn;
+  bool head_only;
+
+  bool os_response_cacheable;
+  list<string> post_headers;
+
+  ContData(TSCont contptr, TSHttpTxn tx)
+    : curr_state(READING_ESI_DOC), input_vio(NULL), output_vio(NULL),
+      output_buffer(NULL), output_reader(NULL),
+      esi_vars(NULL), data_fetcher(NULL), esi_proc(NULL), esi_gzip(NULL), 
+      contp(contptr), txnp(tx), request_url(NULL),
+      input_type(DATA_TYPE_RAW_ESI), packed_node_list(""),
+      gzipped_data(""), gzip_output(false),
+      initialized(false), xform_closed(false),
+      intercept_header(false), cache_txn(false), head_only(false)
+      , os_response_cacheable(true)
+  {
+    client_addr = TSHttpTxnClientAddrGet(txnp);
+    *debug_tag = '\0';
+  }
+
+  void fillPostHeader(TSMBuffer bufp, TSMLoc hdr_loc);
+
+  void getClientState();
+
+  void getServerState();
+
+  void checkXformStatus();
+
+  bool init();
+
+  ~ContData();
+};
+
+class TSStatSystem : public StatSystem {
+public:
+  void create(int handle) {
+        g_stat_indices[handle]=TSStatCreate(Stats::STAT_NAMES[handle], TS_RECORDDATATYPE_INT, TS_STAT_PERSISTENT, TS_STAT_SYNC_COUNT);
+  }
+//  void increment(int handle, TSMgmtInt step = 1) {
+  void increment(int handle, int step = 1) {
+    TSStatIntIncrement(g_stat_indices[handle], step);
+  }
+};
+
+
+static const char *
+createDebugTag(const char *prefix, TSCont contp, string &dest)
+{
+  char buf[1024];
+  snprintf(buf, 1024, "%s_%p", prefix, contp);
+  dest.assign(buf);
+  return dest.c_str();
+}
+
+static bool
+checkHeaderValue(TSMBuffer bufp, TSMLoc hdr_loc, const char *name, int name_len,
+                 const char *exp_value = 0, int exp_value_len = 0, bool prefix = false); // forward decl
+
+static bool
+checkForCacheHeader(const char *name, int name_len, const char *value, int value_len, bool &cacheable);
+
+void
+ContData::checkXformStatus() {
+  if (!xform_closed) {
+    int retval = TSVConnClosedGet(contp);
+    if ((retval == TS_ERROR) || retval) {
+      if (retval == TS_ERROR) {
+        TSDebug(debug_tag, "[%s] Error while getting close status of transformation at state %d",
+                 __FUNCTION__, curr_state);
+      } else {
+        TSDebug(debug_tag, "[%s] Vconn closed", __FUNCTION__);
+      }
+      xform_closed = true;
+    }
+  }
+}
+
+bool
+ContData::init()
+{
+  if (initialized) {
+    TSError("[%s] ContData already initialized!", __FUNCTION__);
+    return false;
+  }
+
+  string tmp_tag;
+  createDebugTag(DEBUG_TAG, contp, tmp_tag);
+  memcpy(debug_tag, tmp_tag.c_str(), tmp_tag.length() + 1);
+
+  checkXformStatus();
+
+  bool retval = false;
+
+  if (!xform_closed) {
+    // Get upstream VIO
+    input_vio = TSVConnWriteVIOGet(contp);
+    if (!input_vio) {
+      TSError("[%s] Error while getting input vio", __FUNCTION__);
+      goto lReturn;
+    }
+    input_reader = TSVIOReaderGet(input_vio);
+
+    // get downstream VIO
+    TSVConn output_conn;
+    output_conn = TSTransformOutputVConnGet(contp);
+    if(!output_conn) {
+      TSError("[%s] Error while getting transform VC", __FUNCTION__);
+      goto lReturn;
+    }
+    output_buffer = TSIOBufferCreate();
+    output_reader = TSIOBufferReaderAlloc(output_buffer);
+
+    // we don't know how much data we are going to write, so INT_MAX
+    output_vio = TSVConnWrite(output_conn, contp, output_reader, INT64_MAX);
+
+    string fetcher_tag, vars_tag, expr_tag, proc_tag, gzip_tag;
+    if (!data_fetcher) {
+      data_fetcher = new HttpDataFetcherImpl(contp, client_addr,
+                                             createDebugTag(FETCHER_DEBUG_TAG, contp, fetcher_tag));
+    }
+    if (!esi_vars) {
+      esi_vars = new Variables(createDebugTag(VARS_DEBUG_TAG, contp, vars_tag), &TSDebug, &TSError);
+    }
+
+    esi_proc = new EsiProcessor(createDebugTag(PROCESSOR_DEBUG_TAG, contp, proc_tag),
+                                createDebugTag(PARSER_DEBUG_TAG, contp, fetcher_tag),
+                                createDebugTag(EXPR_DEBUG_TAG, contp, expr_tag),
+                                &TSDebug, &TSError, *data_fetcher, *esi_vars, *gHandlerManager);
+    
+    esi_gzip = new EsiGzip(createDebugTag(GZIP_DEBUG_TAG, contp, gzip_tag), &TSDebug, &TSError);
+
+    TSDebug(debug_tag, "[%s] Set input data type to [%s]", __FUNCTION__,
+             DATA_TYPE_NAMES_[input_type]);
+
+    retval = true;
+  } else {
+    TSDebug(debug_tag, "[%s] Transformation closed during initialization; Returning false",
+             __FUNCTION__);
+  }
+
+lReturn:
+  initialized = true;
+  return retval;
+}
+
+void
+ContData::getClientState() {
+  TSMBuffer req_bufp;
+  TSMLoc req_hdr_loc;
+  if (TSHttpTxnClientReqGet(txnp, &req_bufp, &req_hdr_loc) != TS_SUCCESS) {
+    TSError("[%s] Error while retrieving client request", __FUNCTION__);
+    return;
+  }
+
+  if (!esi_vars) {
+    string vars_tag;
+    esi_vars = new Variables(createDebugTag(VARS_DEBUG_TAG, contp, vars_tag), &TSDebug, &TSError);
+  }
+  if (!data_fetcher) {
+    string fetcher_tag;
+    data_fetcher = new HttpDataFetcherImpl(contp, client_addr,
+                                           createDebugTag(FETCHER_DEBUG_TAG, contp, fetcher_tag));
+  }
+  if (req_bufp && req_hdr_loc) {
+    TSMBuffer bufp;
+    TSMLoc url_loc;
+    if(TSHttpTxnPristineUrlGet(txnp, &bufp, &url_loc) != TS_SUCCESS) {
+        TSError("[%s] Error while retrieving hdr url", __FUNCTION__);
+        return;
+    }
+    if (url_loc) {
+      if (request_url) {
+        TSfree(request_url);
+      }
+      int length;
+      request_url = TSUrlStringGet(bufp, url_loc, &length);
+      TSDebug(DEBUG_TAG, "[%s] Got request URL [%s]", __FUNCTION__, request_url ? request_url : "(null)");
+      int query_len;
+      const char *query = TSUrlHttpQueryGet(bufp, url_loc, &query_len);
+      if (query) {
+        esi_vars->populate(query, query_len);
+      }
+      TSHandleMLocRelease(bufp, req_hdr_loc, url_loc);
+    }
+    TSMLoc field_loc = TSMimeHdrFieldGet(req_bufp, req_hdr_loc, 0);
+    while (field_loc) {
+      TSMLoc next_field_loc;
+      const char *name;
+      int name_len;
+
+      name = TSMimeHdrFieldNameGet(req_bufp, req_hdr_loc, field_loc, &name_len);
+      if (name) {
+        int n_values;
+        n_values = TSMimeHdrFieldValuesCount(req_bufp, req_hdr_loc, field_loc);
+        if (n_values && (n_values != TS_ERROR)) {
+          const char *value = NULL;
+          int value_len = 0;
+          if (n_values == 1) {
+              value = TSMimeHdrFieldValueStringGet(req_bufp, req_hdr_loc, field_loc, 0, &value_len);
+
+              if ( NULL != value || value_len ) {
+                if (Utils::areEqual(name, name_len, TS_MIME_FIELD_ACCEPT_ENCODING,
+                      TS_MIME_LEN_ACCEPT_ENCODING) &&
+                    Utils::areEqual(value, value_len, TS_HTTP_VALUE_GZIP,
+                      TS_HTTP_LEN_GZIP)) {
+                  gzip_output = true;
+                }
+              }
+          } else {
+            for (int i = 0; i < n_values; ++i) {
+              value = TSMimeHdrFieldValueStringGet(req_bufp, req_hdr_loc, field_loc, i, &value_len);
+              if ( NULL != value || value_len ) {
+                if (Utils::areEqual(name, name_len, TS_MIME_FIELD_ACCEPT_ENCODING,
+                      TS_MIME_LEN_ACCEPT_ENCODING) &&
+                    Utils::areEqual(value, value_len, TS_HTTP_VALUE_GZIP,
+                      TS_HTTP_LEN_GZIP)) {
+                  gzip_output = true;
+                }
+              }
+            }
+
+            value = TSMimeHdrFieldValueStringGet(req_bufp, req_hdr_loc, field_loc, -1, &value_len);
+          }
+
+          if (value != NULL) {
+            HttpHeader header(name, name_len, value, value_len);
+            data_fetcher->useHeader(header);
+            esi_vars->populate(header);
+          }
+        }
+      }
+
+      next_field_loc = TSMimeHdrFieldNext(req_bufp, req_hdr_loc, field_loc);
+      TSHandleMLocRelease(req_bufp, req_hdr_loc, field_loc);
+      field_loc = next_field_loc;
+    }
+  }
+
+  if (gzip_output) {
+    if (option_info->disable_gzip_output) {
+      TSDebug(DEBUG_TAG, "[%s] disable gzip output", __FUNCTION__);
+      gzip_output = false;
+    } else {
+      TSDebug(DEBUG_TAG, "[%s] Client accepts gzip encoding; will compress output", __FUNCTION__);
+    }
+  }
+
+  TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_hdr_loc);
+}
+
+void
+ContData::fillPostHeader(TSMBuffer bufp, TSMLoc hdr_loc) {
+  int n_mime_headers = TSMimeHdrFieldsCount(bufp, hdr_loc);
+  TSMLoc field_loc;
+  const char *name, *value;
+  int name_len, value_len;
+  string header;
+  for (int i = 0; i < n_mime_headers; ++i) {
+    field_loc = TSMimeHdrFieldGet(bufp, hdr_loc, i);
+    if (!field_loc) {
+      TSDebug(DEBUG_TAG, "[%s] Error while obtaining header field #%d", __FUNCTION__, i);
+      continue;
+    }
+    name = TSMimeHdrFieldNameGet(bufp, hdr_loc, field_loc, &name_len);
+    if (name) {
+      if (Utils::areEqual(name, name_len, TS_MIME_FIELD_TRANSFER_ENCODING, TS_MIME_LEN_TRANSFER_ENCODING)) {
+        TSDebug(DEBUG_TAG, "[%s] Not retaining transfer encoding header", __FUNCTION__);
+      } else if (Utils::areEqual(name, name_len, MIME_FIELD_XESI, MIME_FIELD_XESI_LEN)) {
+        TSDebug(DEBUG_TAG, "[%s] Not retaining 'X-Esi' header", __FUNCTION__);
+      } else if (Utils::areEqual(name, name_len, TS_MIME_FIELD_CONTENT_LENGTH, TS_MIME_LEN_CONTENT_LENGTH)) {
+        TSDebug(DEBUG_TAG, "[%s] Not retaining 'Content-length' header", __FUNCTION__);
+      }  else {
+        header.assign(name, name_len);
+        header.append(": ");
+        int n_field_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+        for (int j = 0; j < n_field_values; ++j) {
+          value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, j, &value_len);
+          if ( NULL == value || !value_len ) {
+            TSDebug(DEBUG_TAG, "[%s] Error while getting value #%d of header [%.*s]",
+                     __FUNCTION__, j, name_len, name);
+          } else {
+            if (Utils::areEqual(name, name_len, TS_MIME_FIELD_VARY, TS_MIME_LEN_VARY) &&
+                Utils::areEqual(value, value_len, TS_MIME_FIELD_ACCEPT_ENCODING,
+                                TS_MIME_LEN_ACCEPT_ENCODING)) {
+              TSDebug(DEBUG_TAG, "[%s] Not retaining 'vary: accept-encoding' header", __FUNCTION__);
+            } else if (Utils::areEqual(name, name_len, TS_MIME_FIELD_CONTENT_ENCODING,
+                                       TS_MIME_LEN_CONTENT_ENCODING) &&
+                       Utils::areEqual(value, value_len, TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP)) {
+              TSDebug(DEBUG_TAG, "[%s] Not retaining 'content-encoding: gzip' header", __FUNCTION__);
+            } else {
+              if (header[header.size() - 2] != ':') {
+                header.append(", ");
+              }
+              header.append(value, value_len);
+              checkForCacheHeader(name, name_len, value, value_len,
+                                  os_response_cacheable);
+              if (!os_response_cacheable) {
+                TSDebug(DEBUG_TAG, "[%s] Header [%.*s] with value [%.*s] is a no-cache header",
+                         __FUNCTION__, name_len, name, value_len, value);
+                break;
+              }
+            }
+          } // end if got value string
+        } // end value iteration
+
+        if (static_cast<int>(header.size()) > (name_len + 2 /* for ': ' */ )) {
+          header.append("\r\n");
+          post_headers.push_back(header);
+        }
+      } // end if processable header
+    } // end if got header name
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    if (!os_response_cacheable) {
+      post_headers.clear();
+      break;
+    }
+  } // end header iteration
+}
+
+void
+ContData::getServerState() {
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+
+  if (cache_txn) {
+    if (intercept_header) {
+      input_type = DATA_TYPE_PACKED_ESI;
+      return;
+    } else if (TSHttpTxnCachedRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+      TSError("[%s] Could not get server response; set input type to RAW_ESI", __FUNCTION__);
+      input_type = DATA_TYPE_RAW_ESI;
+      return;
+    }
+  } else if (TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("[%s] Could not get server response; set input type to RAW_ESI", __FUNCTION__);
+    input_type = DATA_TYPE_RAW_ESI;
+    return;
+  }
+
+  if (checkHeaderValue(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_ENCODING,
+                       TS_MIME_LEN_CONTENT_ENCODING, TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP)) {
+    input_type = DATA_TYPE_GZIPPED_ESI;
+  } else {
+    input_type = DATA_TYPE_RAW_ESI;
+  }
+
+  if (option_info->packed_node_support && !cache_txn && !head_only) {
+    fillPostHeader(bufp, hdr_loc);
+  }
+
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+}
+
+ContData::~ContData()
+{
+  TSDebug(debug_tag, "[%s] Destroying continuation data", __FUNCTION__);
+  if (output_reader) {
+    TSIOBufferReaderFree(output_reader);
+  }
+  if (output_buffer) {
+    TSIOBufferDestroy(output_buffer);
+  }
+  if (request_url) {
+    TSfree(request_url);
+  }
+  if (esi_vars) {
+    delete esi_vars;
+  }
+  if (data_fetcher) {
+    delete data_fetcher;
+  }
+  if (esi_proc) {
+    delete esi_proc;
+  }
+  if(esi_gzip) {
+    delete esi_gzip;
+  }
+}
+
+static int removeCacheHandler(TSCont contp, TSEvent /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */) {
+    //TSDebug(DEBUG_TAG, "[%s] event: %d", __FUNCTION__, (int)event);
+    TSContDestroy(contp);
+    //just ignore cache remove message
+    return 0;
+}
+
+static bool removeCacheKey(TSHttpTxn txnp) {
+  TSMBuffer req_bufp;
+  TSMLoc req_hdr_loc;
+  TSMLoc url_loc = NULL;
+  TSCont contp = NULL;
+  TSCacheKey cacheKey = NULL;
+  bool result = false;
+
+  if (TSHttpTxnClientReqGet(txnp, &req_bufp, &req_hdr_loc) != TS_SUCCESS) {
+    TSError("[%s] Error while retrieving client request", __FUNCTION__);
+    return false;
+  }
+
+  do {
+    if(TSHttpTxnPristineUrlGet(txnp, &req_bufp, &url_loc) != TS_SUCCESS) {
+      TSError("[%s] Error while retrieving hdr url", __FUNCTION__);
+      break;
+    }
+
+    contp = TSContCreate(removeCacheHandler, NULL);
+    if (contp == NULL) {
+      TSError("[%s] Could not create continuation", __FUNCTION__);
+      break;
+    }
+
+    cacheKey = TSCacheKeyCreate();
+    if (cacheKey == NULL) {
+      TSError("[%s] TSCacheKeyCreate fail", __FUNCTION__);
+      break;
+    }
+
+    if (TSCacheKeyDigestFromUrlSet(cacheKey, url_loc) != TS_SUCCESS) {
+      TSError("[%s] TSCacheKeyDigestFromUrlSet fail", __FUNCTION__);
+      break;
+    }
+
+    TSCacheRemove(contp, cacheKey);
+    result = true;
+    TSError("[%s] TSCacheRemoved", __FUNCTION__);
+  } while (0);
+
+  if (cacheKey != NULL) {
+      TSCacheKeyDestroy(cacheKey);
+  }
+  if (!result) {
+    if (contp != NULL) {
+      TSContDestroy(contp);
+    }
+  }
+
+  TSHandleMLocRelease(req_bufp, req_hdr_loc, url_loc);
+  if (url_loc != NULL) {
+    TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, req_hdr_loc);
+  }
+
+  return result;
+}
+
+static void
+cacheNodeList(ContData *cont_data) {
+  if (TSHttpTxnAborted(cont_data->txnp) == TS_SUCCESS) {
+    TSDebug(cont_data->debug_tag, "[%s] Not caching node list as txn has been aborted", __FUNCTION__);
+    return;
+  }
+  string post_request("");
+  post_request.append(TS_HTTP_METHOD_POST);
+  post_request.append(" ");
+  post_request.append(cont_data->request_url);
+  post_request.append(" HTTP/1.0\r\n");
+  post_request.append(SERVER_INTERCEPT_HEADER);
+  post_request.append(": cache=1\r\n");
+  for (list<string>::iterator list_iter = cont_data->post_headers.begin();
+       list_iter != cont_data->post_headers.end(); ++list_iter) {
+    post_request.append(ECHO_HEADER_PREFIX);
+
+  //TSDebug(cont_data->debug_tag, "[%s] header == %s", __FUNCTION__, list_iter->c_str());
+    if (((int)list_iter->length() > HEADER_MASK_PREFIX_SIZE) &&
+            (strncmp(list_iter->c_str(), HEADER_MASK_PREFIX, HEADER_MASK_PREFIX_SIZE) == 0)) {
+      post_request.append(list_iter->c_str() + HEADER_MASK_PREFIX_SIZE, list_iter->length() - HEADER_MASK_PREFIX_SIZE);
+    } else {
+      post_request.append(*list_iter);
+    }
+  }
+  post_request.append(TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING);
+  post_request.append(": ");
+  post_request.append(TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP);
+  post_request.append("\r\n");
+
+  string body("");
+  cont_data->esi_proc->packNodeList(body, false);
+  char buf[64];
+  snprintf(buf, 64, "%s: %d\r\n\r\n", TS_MIME_FIELD_CONTENT_LENGTH, (int)body.size());
+
+  post_request.append(buf);
+  post_request.append(body);
+
+  //TSError("[%s] DO caching node list size=%d", __FUNCTION__, (int)body.size());
+  //TSDebug(cont_data->debug_tag, "[%s] caching node list size=%d", __FUNCTION__, (int)body.size());
+
+  TSFetchEvent event_ids = {0};
+  TSFetchUrl(post_request.data(), post_request.size(), cont_data->client_addr,
+                  cont_data->contp, NO_CALLBACK, event_ids);
+}
+
+static int
+transformData(TSCont contp)
+{
+  ContData *cont_data;
+  int64_t toread, consumed = 0, avail;
+  bool input_vio_buf_null = false;
+  bool process_input_complete = false;
+
+  // Get the output (downstream) vconnection where we'll write data to.
+  cont_data = static_cast<ContData *>(TSContDataGet(contp));
+
+  // If the input VIO's buffer is NULL, we need to terminate the transformation
+  if (!TSVIOBufferGet(cont_data->input_vio)) {
+    input_vio_buf_null = true;
+    if (cont_data->curr_state == ContData::PROCESSING_COMPLETE) {
+      TSDebug(cont_data->debug_tag, "[%s] input_vio NULL, marking transformation to be terminated",
+               __FUNCTION__);
+      return 1;
+    } else if (cont_data->curr_state == ContData::READING_ESI_DOC) {
+      TSDebug(cont_data->debug_tag, "[%s] input_vio NULL while in read state. Assuming end of input",
+               __FUNCTION__);
+      process_input_complete = true;
+    } else {
+      if (!cont_data->data_fetcher->isFetchComplete()) {
+        TSDebug(cont_data->debug_tag,
+                 "[%s] input_vio NULL, but data needs to be fetched. Returning control", __FUNCTION__);
+        if(!cont_data->option_info->first_byte_flush) {
+          return 1;
+        }
+      } else {
+        TSDebug(cont_data->debug_tag,
+                 "[%s] input_vio NULL, but processing needs to (and can) be completed", __FUNCTION__);
+      }
+    }
+  }
+
+  if (!process_input_complete && (cont_data->curr_state == ContData::READING_ESI_DOC)) {
+    // Determine how much data we have left to read.
+    toread = TSVIONTodoGet(cont_data->input_vio);
+    TSDebug(cont_data->debug_tag, "[%s] upstream VC has %" PRId64" bytes available to read",
+             __FUNCTION__, toread);
+
+    if (toread > 0) {
+      avail = TSIOBufferReaderAvail(cont_data->input_reader);
+      if (avail == TS_ERROR) {
+        TSError("[%s] Error while getting number of bytes available", __FUNCTION__);
+        return 0;
+      }
+
+      // There are some data available for reading. Let's parse it
+      if (avail > 0) {
+        int64_t data_len;
+        const char *data;
+        TSIOBufferBlock block = TSIOBufferReaderStart(cont_data->input_reader);
+        // Now start extraction
+        while (block != NULL) {
+          data = TSIOBufferBlockReadStart(block, cont_data->input_reader, &data_len);
+          if (cont_data->input_type == DATA_TYPE_RAW_ESI) {
+            cont_data->esi_proc->addParseData(data, data_len);
+          } else if (cont_data->input_type == DATA_TYPE_GZIPPED_ESI) {
+            cont_data->gzipped_data.append(data, data_len);
+          } else {
+            cont_data->packed_node_list.append(data, data_len);
+          }
+          TSDebug(cont_data->debug_tag,
+                   "[%s] Added chunk of %" PRId64" bytes starting with [%.10s] to parse list",
+                   __FUNCTION__, data_len, (data_len ? data : "(null)"));
+          consumed += data_len;
+
+          block = TSIOBufferBlockNext(block);
+        }
+      }
+      TSDebug(cont_data->debug_tag, "[%s] Consumed %" PRId64" bytes from upstream VC",
+               __FUNCTION__, consumed);
+
+      TSIOBufferReaderConsume(cont_data->input_reader, consumed);
+
+      // Modify the input VIO to reflect how much data we've completed.
+      TSVIONDoneSet(cont_data->input_vio, TSVIONDoneGet(cont_data->input_vio) + consumed);
+
+      toread = TSVIONTodoGet(cont_data->input_vio); // set this for the test after this if block
+    }
+
+    if (toread > 0) { // testing this again because it might have changed in previous if block
+      // let upstream know we are ready to read new data
+      TSContCall(TSVIOContGet(cont_data->input_vio), TS_EVENT_VCONN_WRITE_READY, cont_data->input_vio);
+    } else {
+      // we have consumed everything that there was to read
+      process_input_complete = true;
+    }
+  }
+  if (process_input_complete) {
+    TSDebug(cont_data->debug_tag, "[%s] Completed reading input...", __FUNCTION__);
+    if (cont_data->input_type == DATA_TYPE_PACKED_ESI) {
+      TSDebug(DEBUG_TAG, "[%s] Going to use packed node list of size %d",
+               __FUNCTION__, (int) cont_data->packed_node_list.size());
+      if (cont_data->esi_proc->usePackedNodeList(cont_data->packed_node_list) == EsiProcessor::UNPACK_FAILURE) {
+        removeCacheKey(cont_data->txnp);
+
+        cont_data->input_type = DATA_TYPE_RAW_ESI;
+        cont_data->esi_proc->start();
+        cont_data->esi_proc->addParseData(cont_data->packed_node_list.data(), cont_data->packed_node_list.size());
+      }
+    }
+
+    if (cont_data->input_type != DATA_TYPE_PACKED_ESI) {
+      if (cont_data->input_type == DATA_TYPE_GZIPPED_ESI) {
+        BufferList buf_list;
+        if (gunzip(cont_data->gzipped_data.data(), cont_data->gzipped_data.size(), buf_list)) {
+          for (BufferList::iterator iter = buf_list.begin(); iter != buf_list.end(); ++iter) {
+            cont_data->esi_proc->addParseData(iter->data(), iter->size());
+          }
+        } else {
+          TSError("[%s] Error while gunzipping data", __FUNCTION__);
+        }
+      }
+      if (cont_data->esi_proc->completeParse()) {
+        if (cont_data->option_info->packed_node_support && cont_data->os_response_cacheable
+            && !cont_data->cache_txn && !cont_data->head_only)
+        {
+          cacheNodeList(cont_data);
+        }
+      }
+    }
+
+    cont_data->curr_state = ContData::FETCHING_DATA;
+    if (!input_vio_buf_null) {
+      TSContCall(TSVIOContGet(cont_data->input_vio), TS_EVENT_VCONN_WRITE_COMPLETE,
+                  cont_data->input_vio);
+    }
+  }
+
+  if ((cont_data->curr_state == ContData::FETCHING_DATA) &&
+      (!cont_data->option_info->first_byte_flush)) { // retest as state may have changed in previous block
+    if (cont_data->data_fetcher->isFetchComplete()) {
+      TSDebug(cont_data->debug_tag, "[%s] data ready; going to process doc", __FUNCTION__);
+      const char *out_data;
+      int out_data_len;
+      EsiProcessor::ReturnCode retval = cont_data->esi_proc->process(out_data, out_data_len);
+      TSDebug(cont_data->debug_tag, "[%s] data length: %d, retval: %d", __FUNCTION__, out_data_len, retval);
+      if (retval == EsiProcessor::NEED_MORE_DATA) {
+        TSDebug(cont_data->debug_tag, "[%s] ESI processor needs more data; "
+                 "will wait for all data to be fetched", __FUNCTION__);
+        return 1;
+      }
+      cont_data->curr_state = ContData::PROCESSING_COMPLETE;
+      if (retval == EsiProcessor::SUCCESS) {
+        TSDebug(cont_data->debug_tag,
+                 "[%s] ESI processor output document of size %d starting with [%.10s]",
+                 __FUNCTION__, out_data_len, (out_data_len ? out_data : "(null)"));
+      } else {
+        TSError("[%s] ESI processor failed to process document; will return empty document", __FUNCTION__);
+        out_data = "";
+        out_data_len = 0;
+      }
+
+      // make sure transformation has not been prematurely terminated
+      if (!cont_data->xform_closed) {
+        string cdata;
+        if (cont_data->gzip_output) {
+          if (!gzip(out_data, out_data_len, cdata)) {
+            TSError("[%s] Error while gzipping content", __FUNCTION__);
+            out_data_len = 0;
+            out_data = "";
+          } else {
+            TSDebug(cont_data->debug_tag, "[%s] Compressed document from size %d to %d bytes",
+                     __FUNCTION__, out_data_len, (int) cdata.size());
+            out_data_len = cdata.size();
+            out_data = cdata.data();
+          }
+        }
+
+        // Get downstream VIO
+        TSVConn output_conn;
+        output_conn = TSTransformOutputVConnGet(contp);
+        if (!output_conn) {
+          TSError("[%s] Error while getting transform VC", __FUNCTION__);
+          return 0;
+        }
+
+        TSVIO output_vio;
+        output_vio = TSVConnWrite(output_conn, contp, cont_data->output_reader, out_data_len);
+
+        if (TSIOBufferWrite(TSVIOBufferGet(output_vio), out_data, out_data_len) == TS_ERROR) {
+          TSError("[%s] Error while writing bytes to downstream VC", __FUNCTION__);
+          return 0;
+        }
+
+        TSVIONBytesSet(output_vio, out_data_len);
+
+        // Reenable the output connection so it can read the data we've produced.
+        TSVIOReenable(output_vio);
+      }
+    } else {
+      TSDebug(cont_data->debug_tag, "[%s] Data not available yet; cannot process document",
+               __FUNCTION__);
+    }
+  }
+
+  if ((cont_data->curr_state == ContData::FETCHING_DATA) &&
+      (cont_data->option_info->first_byte_flush)) { // retest as state may have changed in previous block
+    TSDebug(cont_data->debug_tag, "[%s] trying to process doc", __FUNCTION__);
+    string out_data;
+    string cdata;
+    int overall_len;
+    EsiProcessor::ReturnCode retval = cont_data->esi_proc->flush(out_data, overall_len);
+
+    if (cont_data->data_fetcher->isFetchComplete()) {
+      TSDebug(cont_data->debug_tag, "[%s] data ready; last process() will have finished the entire processing", __FUNCTION__);
+      cont_data->curr_state = ContData::PROCESSING_COMPLETE;
+    }
+
+    if (retval == EsiProcessor::SUCCESS) {
+      TSDebug(cont_data->debug_tag,
+                 "[%s] ESI processor output document of size %d starting with [%.10s]",
+                 __FUNCTION__, (int) out_data.size(), (out_data.size() ? out_data.data() : "(null)"));
+    } else {
+      TSError("[%s] ESI processor failed to process document; will return empty document", __FUNCTION__);
+      out_data.assign("");
+        
+      if(!cont_data->xform_closed) {
+        TSVIONBytesSet(cont_data->output_vio, 0);
+        TSVIOReenable(cont_data->output_vio);
+      }
+    }
+
+    // make sure transformation has not been prematurely terminated
+    if (!cont_data->xform_closed && out_data.size() > 0) {
+      if (cont_data->gzip_output) {
+        if (!cont_data->esi_gzip->stream_encode(out_data, cdata)) {
+          TSError("[%s] Error while gzipping content", __FUNCTION__);
+        } else {
+          TSDebug(cont_data->debug_tag, "[%s] Compressed document from size %d to %d bytes",
+                     __FUNCTION__, (int) out_data.size(), (int) cdata.size());
+        }
+      }
+
+      if (cont_data->gzip_output) {
+        if (TSIOBufferWrite(TSVIOBufferGet(cont_data->output_vio), cdata.data(), cdata.size()) == TS_ERROR) {
+          TSError("[%s] Error while writing bytes to downstream VC", __FUNCTION__);
+          return 0;
+        }
+      } else {
+        if (TSIOBufferWrite(TSVIOBufferGet(cont_data->output_vio), out_data.data(), out_data.size()) == TS_ERROR) {
+          TSError("[%s] Error while writing bytes to downstream VC", __FUNCTION__);
+          return 0;
+        }
+      }
+    }
+    if(!cont_data->xform_closed) {     
+      // should not set any fixed length
+      if(cont_data->curr_state == ContData::PROCESSING_COMPLETE) {
+        if(cont_data->gzip_output) {
+          string cdata;
+          int downstream_length;
+          if(!cont_data->esi_gzip->stream_finish(cdata, downstream_length)) {
+            TSError("[%s] Error while finishing gzip", __FUNCTION__);
+            return 0;  
+          } else {   
+            if (TSIOBufferWrite(TSVIOBufferGet(cont_data->output_vio), cdata.data(), cdata.size()) == TS_ERROR) {
+              TSError("[%s] Error while writing bytes to downstream VC", __FUNCTION__);
+              return 0;
+            }
+            TSDebug(cont_data->debug_tag,
+                 "[%s] ESI processed overall/gzip: %d",
+                 __FUNCTION__, downstream_length );
+            TSVIONBytesSet(cont_data->output_vio, downstream_length);          
+          }
+        } else {
+          TSDebug(cont_data->debug_tag,
+                 "[%s] ESI processed overall: %d",
+                 __FUNCTION__, overall_len );
+          TSVIONBytesSet(cont_data->output_vio, overall_len);
+        }
+      } 
+   
+      // Reenable the output connection so it can read the data we've produced.
+      TSVIOReenable(cont_data->output_vio);
+    }
+  }
+
+  return 1;
+}
+
+static int
+transformHandler(TSCont contp, TSEvent event, void *edata)
+{
+  TSVIO input_vio;
+  ContData *cont_data;
+  cont_data = static_cast<ContData *>(TSContDataGet(contp));
+
+  // we need these later, but declaring now avoid compiler warning w.r.t. goto
+  bool process_event = true;
+  const char *cont_debug_tag;
+  bool shutdown, is_fetch_event;
+
+  if (!cont_data->initialized) {
+    if (!cont_data->init()) {
+      TSError("[%s] Could not initialize continuation data; shutting down transformation", __FUNCTION__);
+      goto lShutdown;
+    }
+    TSDebug(cont_data->debug_tag, "[%s] initialized continuation data", __FUNCTION__);
+  }
+
+  cont_debug_tag = cont_data->debug_tag; // just a handy reference
+
+  cont_data->checkXformStatus();
+
+  is_fetch_event = cont_data->data_fetcher->isFetchEvent(event);
+
+
+  if (cont_data->xform_closed) {
+    TSDebug(cont_debug_tag, "[%s] Transformation closed. Post-processing...", __FUNCTION__);
+    if (cont_data->curr_state == ContData::PROCESSING_COMPLETE) {
+      TSDebug(cont_debug_tag, "[%s] Processing is complete, not processing current event %d",
+               __FUNCTION__, event);
+      process_event = false;
+    } else if (cont_data->curr_state == ContData::READING_ESI_DOC) {
+      TSDebug(cont_debug_tag, "[%s] Parsing is incomplete, will force end of input",
+               __FUNCTION__);
+      cont_data->curr_state = ContData::FETCHING_DATA;
+    }
+    if (cont_data->curr_state == ContData::FETCHING_DATA) { // retest as it may be modified in prev. if block
+      if (cont_data->data_fetcher->isFetchComplete()) {
+        TSDebug(cont_debug_tag,
+                 "[%s] Requested data has been fetched; will skip event and marking processing as complete ",
+                 __FUNCTION__);
+        cont_data->curr_state = ContData::PROCESSING_COMPLETE;
+        process_event = false;
+      } else {
+        if (is_fetch_event) {
+          TSDebug(cont_debug_tag, "[%s] Going to process received data",
+                   __FUNCTION__);
+        } else {
+          // transformation is over, but data hasn't been fetched;
+          // let's wait for data to be fetched - we will be called
+          // by Fetch API and go through this loop again
+          TSDebug(cont_debug_tag, "[%s] Ignoring event %d; Will wait for pending data",
+                   __FUNCTION__, event);
+          process_event = false;
+        }
+      }
+    }
+  }
+
+  if (process_event) {
+    switch (event) {
+    case TS_EVENT_ERROR:
+      // doubt: what is this code doing?
+      input_vio = TSVConnWriteVIOGet(contp);
+      if (!input_vio) {
+        TSError("[%s] Error while getting upstream vio", __FUNCTION__);
+      } else {
+        TSContCall(TSVIOContGet(input_vio), TS_EVENT_ERROR, input_vio);
+      }
+      // FetchSM also might send this; let's just output whatever we have
+      cont_data->curr_state = ContData::FETCHING_DATA;
+      transformData(contp);
+      break;
+
+    case TS_EVENT_VCONN_WRITE_READY:
+      TSDebug(cont_debug_tag, "[%s] WRITE_READY", __FUNCTION__);
+      if(!cont_data->option_info->first_byte_flush) {
+        TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      }
+      break;
+
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      TSDebug(cont_debug_tag, "[%s] shutting down transformation", __FUNCTION__);
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+
+    case TS_EVENT_IMMEDIATE:
+      TSDebug(cont_debug_tag, "[%s] handling TS_EVENT_IMMEDIATE...", __FUNCTION__);
+      transformData(contp);
+      break;
+
+    default:
+      if (is_fetch_event) {
+        TSDebug(cont_debug_tag, "[%s] Handling fetch event %d...", __FUNCTION__, event);
+        if (cont_data->data_fetcher->handleFetchEvent(event, edata)) {
+          if (cont_data->curr_state == ContData::FETCHING_DATA) {
+            // there's a small chance that fetcher is ready even before
+            // parsing is complete; hence we need to check the state too
+            if(cont_data->option_info->first_byte_flush ||
+               cont_data->data_fetcher->isFetchComplete()){
+              TSDebug(cont_debug_tag, "[%s] fetcher is ready with data, going into process stage",
+                     __FUNCTION__);
+              transformData(contp);
+            }
+          }
+        } else {
+          TSError("[%s] Could not handle fetch event!", __FUNCTION__);
+        }
+      } else {
+        TSAssert(!"Unexpected event");
+      }
+      break;
+    }
+  }
+
+  TSDebug(cont_data->debug_tag, "[%s] transformHandler, event: %d, curr_state: %d", __FUNCTION__, (int)event, (int)cont_data->curr_state);
+
+  shutdown = (cont_data->xform_closed && (cont_data->curr_state == ContData::PROCESSING_COMPLETE));
+  if (shutdown) {
+    if (process_event && is_fetch_event) {
+      // we need to return control to the fetch API to give up it's
+      // lock on our continuation which will fail if we destroy
+      // ourselves right now
+      TSDebug(cont_debug_tag, "[%s] Deferring shutdown as data event was just processed", __FUNCTION__);
+      TSContSchedule(contp, 10, TS_THREAD_POOL_TASK);
+    } else {
+      goto lShutdown;
+    }
+  }
+
+  return 1;
+
+lShutdown:
+  TSDebug(cont_data->debug_tag, "[%s] transformation closed; cleaning up data...", __FUNCTION__);
+  delete cont_data;
+  TSContDestroy(contp);
+  return 1;
+}
+
+struct RespHdrModData {
+  bool cache_txn;
+  bool gzip_encoding;
+  bool head_only;
+  const struct OptionInfo *option_info;
+};
+
+static void
+addMimeHeaderField(TSMBuffer bufp, TSMLoc hdr_loc, const char *name, int name_len,
+                   const char *value, int value_len) {
+  TSMLoc field_loc = (TSMLoc)NULL;
+  TSMimeHdrFieldCreate(bufp, hdr_loc, &field_loc);
+  if (!field_loc) {
+    TSError("[%s] Error while creating mime field", __FUNCTION__);
+  } else {
+    if (TSMimeHdrFieldNameSet(bufp, hdr_loc, field_loc, name, name_len) != TS_SUCCESS) {
+      TSError("[%s] Error while setting name [%.*s] for MIME header field", __FUNCTION__, name_len, name);
+    } else {
+      if (TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, field_loc, 0, value, value_len) != TS_SUCCESS) {
+        TSError("[%s] Error while inserting value [%.*s] string to MIME field [%.*s]", __FUNCTION__,
+                 value_len, value, name_len, name);
+      } else {
+        if (TSMimeHdrFieldAppend(bufp, hdr_loc, field_loc) != TS_SUCCESS) {
+          TSError("[%s] Error while appending MIME field with name [%.*s] and value [%.*s]", __FUNCTION__,
+                   name_len, name, value_len, value);
+        }
+      }
+    }
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  }
+}
+
+static int
+modifyResponseHeader(TSCont contp, TSEvent event, void *edata) {
+  int retval = 0;
+  RespHdrModData *mod_data = static_cast<RespHdrModData *>(TSContDataGet(contp));
+  TSHttpTxn txnp = static_cast<TSHttpTxn>(edata);
+  if (event != TS_EVENT_HTTP_SEND_RESPONSE_HDR) {
+    TSError("[%s] Unexpected event (%d)", __FUNCTION__, event);
+    goto lReturn;
+  }
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) == TS_SUCCESS) {
+    int n_mime_headers = TSMimeHdrFieldsCount(bufp, hdr_loc);
+    TSMLoc field_loc;
+    const char *name, *value;
+    int name_len, value_len;
+    bool have_content_length = false;
+    for (int i = 0; i < n_mime_headers; ++i) {
+      field_loc = TSMimeHdrFieldGet(bufp, hdr_loc, i);
+      if (!field_loc) {
+        TSDebug(DEBUG_TAG, "[%s] Error while obtaining header field #%d", __FUNCTION__, i);
+        continue;
+      }
+      name = TSMimeHdrFieldNameGet(bufp, hdr_loc, field_loc, &name_len);
+      if (name) {
+        bool destroy_header = false;
+
+        if (Utils::areEqual(name, name_len, SERVER_INTERCEPT_HEADER, SERVER_INTERCEPT_HEADER_LEN)) {
+          destroy_header = true;
+        } else if (Utils::areEqual(name, name_len, TS_MIME_FIELD_AGE, TS_MIME_LEN_AGE)) {
+          destroy_header = true;
+        } else if (Utils::areEqual(name, name_len, MIME_FIELD_XESI, MIME_FIELD_XESI_LEN)) {
+          destroy_header = true;
+        } else if ((name_len > HEADER_MASK_PREFIX_SIZE) &&
+                   (strncmp(name, HEADER_MASK_PREFIX, HEADER_MASK_PREFIX_SIZE) == 0))
+         {
+          destroy_header = true;
+        } else if (mod_data->option_info->private_response && (Utils::areEqual(name,
+                name_len, TS_MIME_FIELD_CACHE_CONTROL, TS_MIME_LEN_CACHE_CONTROL)
+              || Utils::areEqual(name, name_len, TS_MIME_FIELD_EXPIRES,
+                TS_MIME_LEN_EXPIRES)))
+        {
+          destroy_header = true;
+        } else if (Utils::areEqual(name, name_len, TS_MIME_FIELD_CONTENT_LENGTH,
+              TS_MIME_LEN_CONTENT_LENGTH))
+        {
+          have_content_length = true;
+          if (mod_data->head_only) {
+            destroy_header = true;
+            TSError("[%s] remove Content-Length", __FUNCTION__);
+          }
+        } else {
+          int n_field_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+          for (int j = 0; j < n_field_values; ++j) {
+            value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, j, &value_len);
+            if ( NULL == value || !value_len ) {
+              TSDebug(DEBUG_TAG, "[%s] Error while getting value #%d of header [%.*s]",
+                       __FUNCTION__, j, name_len, name);
+            } else {
+              if (!mod_data->option_info->packed_node_support || mod_data->cache_txn) {
+                bool response_cacheable, is_cache_header;
+                is_cache_header = checkForCacheHeader(name, name_len, value, value_len, response_cacheable);
+                if (is_cache_header && response_cacheable) {
+                  destroy_header = true;
+                }
+              }
+            } // if got valid value for header
+          } // end for
+        }
+        if (destroy_header) {
+          TSDebug(DEBUG_TAG, "[%s] Removing header with name [%.*s]", __FUNCTION__, name_len, name);
+          TSMimeHdrFieldDestroy(bufp, hdr_loc, field_loc);
+          --n_mime_headers;
+          --i;
+        }
+      }
+      TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    }
+    if (mod_data->gzip_encoding &&
+        !checkHeaderValue(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_ENCODING,
+          TS_MIME_LEN_CONTENT_ENCODING, TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP))
+    {
+      addMimeHeaderField(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_ENCODING,
+          TS_MIME_LEN_CONTENT_ENCODING, TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP);
+    }
+
+    if (!have_content_length) {
+      TSError("[%s] no Content-Length!", __FUNCTION__);
+    }
+
+    if (mod_data->option_info->packed_node_support && mod_data->cache_txn) {
+      addMimeHeaderField(bufp, hdr_loc, TS_MIME_FIELD_VARY,
+          TS_MIME_LEN_VARY, TS_MIME_FIELD_ACCEPT_ENCODING,
+          TS_MIME_LEN_ACCEPT_ENCODING);
+    }
+
+    if (mod_data->option_info->private_response) {
+      addMimeHeaderField(bufp, hdr_loc, TS_MIME_FIELD_EXPIRES,
+          TS_MIME_LEN_EXPIRES, HTTP_VALUE_PRIVATE_EXPIRES,
+          sizeof(HTTP_VALUE_PRIVATE_EXPIRES) - 1);
+      addMimeHeaderField(bufp, hdr_loc, TS_MIME_FIELD_CACHE_CONTROL,
+          TS_MIME_LEN_CACHE_CONTROL, HTTP_VALUE_PRIVATE_CC,
+          sizeof(HTTP_VALUE_PRIVATE_CC) - 1);
+    }
+
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    TSDebug(DEBUG_TAG, "[%s] Inspected client-bound headers", __FUNCTION__);
+    retval = 1;
+  } else {
+    TSError("[%s] Error while getting response from txn", __FUNCTION__);
+  }
+
+lReturn:
+  delete mod_data;
+  TSContDestroy(contp);
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return retval;
+}
+
+static bool
+checkHeaderValue(TSMBuffer bufp, TSMLoc hdr_loc, const char *name, int name_len,
+                 const char *exp_value, int exp_value_len, bool prefix) {
+  TSMLoc field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, name, name_len);
+  if (!field_loc) {
+    return false;
+  }
+  bool retval = false;
+  if (exp_value && exp_value_len) {
+    const char *value;
+    int value_len;
+    int n_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+    for (int i = 0; i < n_values; ++i) {
+      value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, i, &value_len);
+      if ( NULL != value || value_len ) {
+        if (prefix) {
+          if ((value_len >= exp_value_len) &&
+              (strncasecmp(value, exp_value, exp_value_len) == 0)) {
+            retval = true;
+          }
+        } else if (Utils::areEqual(value, value_len, exp_value, exp_value_len)) {
+          retval = true;
+        }
+      } else {
+        TSDebug(DEBUG_TAG, "[%s] Error while getting value # %d of header [%.*s]", __FUNCTION__,
+                 i, name_len, name);
+      }
+      if (retval) {
+        break;
+      }
+    }
+  } else { // only presence required
+    retval = true;
+  }
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  return retval;
+}
+
+static void
+maskOsCacheHeaders(TSHttpTxn txnp) {
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  if (TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("[%s] Couldn't get server response from txn", __FUNCTION__);
+    return;
+  }
+  int n_mime_headers = TSMimeHdrFieldsCount(bufp, hdr_loc);
+  TSMLoc field_loc;
+  const char *name, *value;
+  int name_len, value_len, n_field_values;
+  bool os_response_cacheable, is_cache_header, mask_header;
+  string masked_name;
+  os_response_cacheable = true;
+  for (int i = 0; i < n_mime_headers; ++i) {
+    field_loc = TSMimeHdrFieldGet(bufp, hdr_loc, i);
+    if (!field_loc) {
+      TSDebug(DEBUG_TAG, "[%s] Error while obtaining header field #%d", __FUNCTION__, i);
+      continue;
+    }
+    name = TSMimeHdrFieldNameGet(bufp, hdr_loc, field_loc, &name_len);
+    if (name) {
+      mask_header = is_cache_header = false;
+      n_field_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+      for (int j = 0; j < n_field_values; ++j) {
+        value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, j, &value_len);
+        if ( NULL == value || !value_len ) {
+          TSDebug(DEBUG_TAG, "[%s] Error while getting value #%d of header [%.*s]",
+                   __FUNCTION__, j, name_len, name);
+        } else {
+          is_cache_header = checkForCacheHeader(name, name_len, value, value_len, os_response_cacheable);
+          if (!os_response_cacheable) {
+            break;
+          }
+          if (is_cache_header) {
+            TSDebug(DEBUG_TAG, "[%s] Masking OS cache header [%.*s] with value [%.*s]. ",
+                     __FUNCTION__, name_len, name, value_len, value);
+            mask_header = true;
+          }
+        } // end if got value string
+      } // end value iteration
+      if (mask_header) {
+        masked_name.assign(HEADER_MASK_PREFIX);
+        masked_name.append(name, name_len);
+        if (TSMimeHdrFieldNameSet(bufp, hdr_loc, field_loc, masked_name.data(),
+                                   masked_name.size()) != TS_SUCCESS) {
+          TSError("[%s] Couldn't rename header [%.*s]", __FUNCTION__, name_len, name);
+        }
+      }
+    } // end if got header name
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    if (!os_response_cacheable) {
+      break;
+    }
+  } // end header iteration
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+}
+
+static bool
+isTxnTransformable(TSHttpTxn txnp, bool is_cache_txn, bool * intercept_header, bool * head_only) {
+  //  We are only interested in transforming "200 OK" responses with a
+  //  Content-Type: text/ header and with X-Esi header
+
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSHttpStatus resp_status;
+  TSReturnCode header_obtained;
+  bool retval = false;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("[%s] Couldn't get txn header", __FUNCTION__);
+    return false;
+  }
+
+  int method_len;
+  const char *method;
+  method = TSHttpHdrMethodGet(bufp, hdr_loc, &method_len);
+  if (method == NULL) {
+    TSError("[%s] Couldn't get method", __FUNCTION__);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return false;
+  }
+
+  if (method_len >= TS_HTTP_LEN_HEAD && memcmp(method, TS_HTTP_METHOD_HEAD, TS_HTTP_LEN_HEAD) == 0) {
+    *head_only = true;
+  }
+  else if (!(((method_len >= TS_HTTP_LEN_POST && memcmp(method, TS_HTTP_METHOD_POST, TS_HTTP_LEN_POST) == 0)) ||
+        ((method_len >= TS_HTTP_LEN_GET && memcmp(method, TS_HTTP_METHOD_GET, TS_HTTP_LEN_GET) == 0))))
+  {
+    TSDebug(DEBUG_TAG, "[%s] method %.*s will be ignored", __FUNCTION__, method_len, method);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return false;
+  }
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+  header_obtained = is_cache_txn ? TSHttpTxnCachedRespGet(txnp, &bufp, &hdr_loc) :
+    TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+  if (header_obtained != TS_SUCCESS) {
+    TSError("[%s] Couldn't get txn header", __FUNCTION__);
+    return false;
+  }
+
+  do {
+    *intercept_header = checkHeaderValue(bufp, hdr_loc, SERVER_INTERCEPT_HEADER, SERVER_INTERCEPT_HEADER_LEN);
+    if (*intercept_header) {
+      if (is_cache_txn) {
+        TSDebug(DEBUG_TAG, "[%s] Packed ESI document found in cache; will process", __FUNCTION__);
+        retval = true;
+      } else {
+        TSDebug(DEBUG_TAG, "[%s] Found Intercept header in server response; document not processable",
+            __FUNCTION__);
+      }
+      break; // found internal header; no other detection required
+    }
+
+    // allow response with valid status code to be transformable
+    resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+    if (static_cast<int>(resp_status) == static_cast<int>(TS_ERROR)) {
+      TSError("[%s] Error while getting http status", __FUNCTION__);
+      break;
+    }
+    if (resp_status != TS_HTTP_STATUS_OK) {
+      TSDebug(DEBUG_TAG, "[%s] non-OK response status %d", __FUNCTION__, resp_status);
+    }
+
+    if ((!checkHeaderValue(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE, TS_MIME_LEN_CONTENT_TYPE,
+          "text/", 5, true)) &&
+        (!checkHeaderValue(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE, TS_MIME_LEN_CONTENT_TYPE,
+          "application/javascript", 22, true)) &&
+        (!checkHeaderValue(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE, TS_MIME_LEN_CONTENT_TYPE,
+          "application/x-javascript", 24, true)) &&
+        (!checkHeaderValue(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE, TS_MIME_LEN_CONTENT_TYPE,
+          "multipart/mixed", 15, true))) {
+      TSDebug(DEBUG_TAG, "[%s] Not text content", __FUNCTION__);
+      break;
+    }
+    if (!checkHeaderValue(bufp, hdr_loc, MIME_FIELD_XESI, MIME_FIELD_XESI_LEN)) {
+      TSDebug(DEBUG_TAG, "[%s] ESI header [%s] not found", __FUNCTION__, MIME_FIELD_XESI);
+      break;
+    }
+
+    retval = true;
+  } while (0);
+
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  return retval;
+}
+
+static bool
+isCacheObjTransformable(TSHttpTxn txnp, bool * intercept_header, bool * head_only) {
+  int obj_status;
+  if (TSHttpTxnCacheLookupStatusGet(txnp, &obj_status) == TS_ERROR) {
+    TSError("[%s] Couldn't get cache status of object", __FUNCTION__);
+    return false;
+  }
+  if ((obj_status == TS_CACHE_LOOKUP_HIT_FRESH) || (obj_status == TS_CACHE_LOOKUP_HIT_STALE)) {
+    /*
+    time_t respTime;
+    if (TSHttpTxnCachedRespTimeGet(txnp, &respTime) == TS_SUCCESS) {
+      TSError("[%s] RespTime; %d", __FUNCTION__, (int)respTime);
+    }
+    */
+
+    TSDebug(DEBUG_TAG, "[%s] doc found in cache, will add transformation", __FUNCTION__);
+    return isTxnTransformable(txnp, true, intercept_header, head_only);
+  }
+  TSDebug(DEBUG_TAG, "[%s] cache object's status is %d; not transformable",
+           __FUNCTION__, obj_status);
+  return false;
+}
+
+static bool
+isInterceptRequest(TSHttpTxn txnp) {
+  if (TSHttpIsInternalRequest(txnp) != TS_SUCCESS) {
+    TSDebug(DEBUG_TAG, "[%s] Skipping external request", __FUNCTION__);
+    return false;
+  }
+
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("[%s] Could not get client request", __FUNCTION__);
+    return false;
+  }
+
+  bool valid_request = false;
+  bool retval = false;
+  int method_len;
+  const char *method = TSHttpHdrMethodGet(bufp, hdr_loc, &method_len);
+  if (!method) {
+    TSError("[%s] Could not obtain method!", __FUNCTION__);
+  } else {
+    if ((method_len != TS_HTTP_LEN_POST) ||
+        (strncasecmp(method, TS_HTTP_METHOD_POST, TS_HTTP_LEN_POST))) {
+      TSDebug(DEBUG_TAG, "[%s] Method [%.*s] invalid, [%s] expected", __FUNCTION__, method_len, method,
+               TS_HTTP_METHOD_POST);
+    } else {
+      TSDebug(DEBUG_TAG, "[%s] Valid server intercept method found", __FUNCTION__);
+      valid_request = true;
+    }
+  }
+
+  if (valid_request) {
+    retval = checkHeaderValue(bufp, hdr_loc, SERVER_INTERCEPT_HEADER, SERVER_INTERCEPT_HEADER_LEN);
+  }
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  return retval;
+}
+
+static bool
+checkForCacheHeader(const char *name, int name_len, const char *value, int value_len, bool &cacheable) {
+  cacheable = true;
+  if (Utils::areEqual(name, name_len, TS_MIME_FIELD_EXPIRES, TS_MIME_LEN_EXPIRES)) {
+    if ((value_len == 1) && (*value == '0')) {
+      cacheable = false;
+    }else if (Utils::areEqual(value, value_len, "-1",2)) {
+      cacheable = false;
+    }
+    return true;
+  }
+  if (Utils::areEqual(name, name_len, TS_MIME_FIELD_CACHE_CONTROL, TS_MIME_LEN_CACHE_CONTROL)) {
+    if (Utils::areEqual(value, value_len, TS_HTTP_VALUE_PRIVATE, TS_HTTP_LEN_PRIVATE)) {
+      cacheable = false;
+    }
+    return true;
+  }
+  return false;
+}
+
+static bool
+addSendResponseHeaderHook(TSHttpTxn txnp, const ContData * src_cont_data) {
+  TSCont contp = TSContCreate(modifyResponseHeader, NULL);
+  if (!contp) {
+    TSError("[%s] Could not create continuation", __FUNCTION__);
+    return false;
+  }
+  TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+  RespHdrModData *cont_data = new RespHdrModData();
+  cont_data->option_info = src_cont_data->option_info;
+  cont_data->cache_txn = src_cont_data->cache_txn;
+  cont_data->head_only = src_cont_data->head_only;
+  cont_data->gzip_encoding = src_cont_data->gzip_output;
+  TSContDataSet(contp, cont_data);
+  return true;
+}
+
+static bool
+addTransform(TSHttpTxn txnp, const bool processing_os_response,
+    const bool intercept_header, const bool head_only,
+    const struct OptionInfo *pOptionInfo)
+{
+  TSCont contp = 0;
+  ContData *cont_data = 0;
+
+  contp = TSTransformCreate(transformHandler, txnp);
+  if (!contp) {
+    TSError("[%s] Error while creating a new transformation", __FUNCTION__);
+    goto lFail;
+  }
+
+  cont_data = new ContData(contp, txnp);
+  TSContDataSet(contp, cont_data);
+
+  cont_data->option_info = pOptionInfo;
+  cont_data->cache_txn = !processing_os_response;
+  cont_data->intercept_header = intercept_header;
+  cont_data->head_only = head_only;
+  cont_data->getClientState();
+  cont_data->getServerState();
+
+  if (cont_data->cache_txn) {
+    if (cont_data->option_info->packed_node_support) {
+      if (cont_data->input_type != DATA_TYPE_PACKED_ESI) {
+        removeCacheKey(txnp);
+      }
+    } else {
+      if (cont_data->input_type == DATA_TYPE_PACKED_ESI) {
+        removeCacheKey(txnp);
+      }
+    }
+  }
+
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, contp);
+
+  if (!addSendResponseHeaderHook(txnp, cont_data)) {
+    TSError("[%s] Couldn't add send response header hook", __FUNCTION__);
+    goto lFail;
+  }
+
+  TSHttpTxnTransformedRespCache(txnp, 0);
+  if (cont_data->option_info->packed_node_support) {
+    TSHttpTxnUntransformedRespCache(txnp, 0);
+  } else {
+    TSHttpTxnUntransformedRespCache(txnp, 1);
+  }
+
+  TSDebug(DEBUG_TAG, "[%s] Added transformation (0x%p)", __FUNCTION__, contp);
+  return true;
+
+lFail:
+  if (contp) {
+    TSContDestroy(contp);
+  }
+  if (cont_data) {
+    delete cont_data;
+  }
+  return false;
+}
+
+pthread_key_t threadKey = 0;
+static int
+globalHookHandler(TSCont contp, TSEvent event, void *edata) {
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  bool intercept_header = false;
+  bool head_only = false;
+  bool intercept_req = isInterceptRequest(txnp);
+  struct OptionInfo *pOptionInfo = (struct OptionInfo *)TSContDataGet(contp);
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    TSDebug(DEBUG_TAG, "[%s] handling read request header event...", __FUNCTION__);
+    if (intercept_req) {
+      if (!setupServerIntercept(txnp)) {
+        TSError("[%s] Could not setup server intercept", __FUNCTION__);
+      } else {
+        TSDebug(DEBUG_TAG, "[%s] Setup server intercept", __FUNCTION__);
+      }
+    } else {
+      TSDebug(DEBUG_TAG, "[%s] Not setting up intercept", __FUNCTION__);
+    }
+    break;
+
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+    if (!intercept_req) {
+      if (event == TS_EVENT_HTTP_READ_RESPONSE_HDR) {
+        bool mask_cache_headers = false;
+        TSDebug(DEBUG_TAG, "[%s] handling read response header event...", __FUNCTION__);
+        if (isCacheObjTransformable(txnp, &intercept_header, &head_only)) {
+          // transformable cache object will definitely have a
+          // transformation already as cache_lookup_complete would
+          // have been processed before this
+          TSDebug(DEBUG_TAG, "[%s] xform should already have been added on cache lookup. Not adding now",
+                   __FUNCTION__);
+          mask_cache_headers = true;
+        } else if (isTxnTransformable(txnp, false, &intercept_header, &head_only)) {
+          addTransform(txnp, true, intercept_header, head_only, pOptionInfo);
+          Stats::increment(Stats::N_OS_DOCS);
+          mask_cache_headers = true;
+        }
+        if (pOptionInfo->packed_node_support && mask_cache_headers) {
+          // we'll 'mask' OS cache headers so that traffic server will
+          // not try to cache this. We cannot outright delete them
+          // because we need them in our POST request; hence the 'masking'
+          maskOsCacheHeaders(txnp);
+        }
+      } else {
+        TSDebug(DEBUG_TAG, "[%s] handling cache lookup complete event...", __FUNCTION__);
+        if (isCacheObjTransformable(txnp, &intercept_header, &head_only)) {
+          // we make the assumption above that a transformable cache
+          // object would already have a tranformation. We should revisit
+          // that assumption in case we change the statement below
+          addTransform(txnp, false, intercept_header, head_only, pOptionInfo);
+          Stats::increment(Stats::N_CACHE_DOCS);
+        }
+      }
+    }
+    break;
+
+  default:
+    TSDebug(DEBUG_TAG, "[%s] Don't know how to handle event type %d", __FUNCTION__, event);
+    break;
+  }
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return 0;
+}
+
+static void
+loadHandlerConf(const char *file_name, Utils::KeyValueMap &handler_conf) {
+  std::list<string> conf_lines;
+  TSFile conf_file = TSfopen(file_name, "r");
+  if (conf_file != NULL) {
+    char buf[1024];
+    while (TSfgets(conf_file, buf, sizeof(buf) - 1) != NULL) {
+      conf_lines.push_back(string(buf));
+    }
+    TSfclose(conf_file);
+    Utils::parseKeyValueConfig(conf_lines, handler_conf);
+    TSDebug(DEBUG_TAG, "[%s] Loaded handler conf file [%s]", __FUNCTION__, file_name);
+  } else {
+    TSError("[%s] Failed to open handler config file [%s]", __FUNCTION__, file_name);
+  }
+}
+
+static int esiPluginInit(int argc, const char *argv[], struct OptionInfo *pOptionInfo) {
+  static TSStatSystem *statSystem = NULL;
+
+  if (statSystem == NULL) {
+    statSystem = new TSStatSystem();
+    Utils::init(&TSDebug, &TSError);
+    Stats::init(statSystem);
+  }
+
+  if (gHandlerManager == NULL) {
+    gHandlerManager = new HandlerManager(HANDLER_MGR_DEBUG_TAG, &TSDebug, &TSError);
+  }
+
+  memset(pOptionInfo, 0, sizeof(struct OptionInfo));
+
+  if (argc > 1) {
+    int c;
+    static const struct option longopts[] = {
+      { const_cast<char *>("packed-node-support"), no_argument, NULL, 'n' },
+      { const_cast<char *>("private-response"), no_argument, NULL, 'p' },
+      { const_cast<char *>("disable-gzip-output"), no_argument, NULL, 'z' },
+      { const_cast<char *>("first-byte-flush"), no_argument, NULL, 'b' },
+      { const_cast<char *>("handler-filename"), required_argument, NULL, 'f' },
+      { NULL, 0, NULL, 0 }
+    };
+
+    optarg = NULL;
+    optind = opterr = optopt = 0;
+    int longindex = 0;
+    while ((c = getopt_long(argc, (char * const*) argv, "npzbf:", longopts, &longindex)) != -1) {
+      switch (c) {
+        case 'n':
+          pOptionInfo->packed_node_support = true;
+          break;
+        case 'p':
+          pOptionInfo->private_response = true;
+          break;
+        case 'z':
+          pOptionInfo->disable_gzip_output = true;
+          break;
+        case 'b':
+          pOptionInfo->first_byte_flush = true;
+          break;
+        case 'f':
+          {
+            Utils::KeyValueMap handler_conf;
+            loadHandlerConf(optarg, handler_conf);
+            gHandlerManager->loadObjects(handler_conf);
+            break;
+          }
+        default:
+          break;
+      }
+    }
+  }
+
+  int result = 0;
+  bool bKeySet;
+  if (threadKey == 0) {
+    bKeySet = true;
+    if ((result=pthread_key_create(&threadKey, NULL)) != 0) {
+      TSError("[%s] Could not create key", __FUNCTION__);
+      TSDebug(DEBUG_TAG, "[%s] Could not create key", __FUNCTION__);
+    }
+  }
+  else {
+    bKeySet = false;
+  }
+
+  if (result == 0) {
+    TSDebug(DEBUG_TAG, "[%s] Plugin started%s, " \
+        "packed-node-support: %d, private-response: %d, " \
+        "disable-gzip-output: %d, first-byte-flush: %d ", __FUNCTION__, bKeySet ? " and key is set" : "",
+        pOptionInfo->packed_node_support, pOptionInfo->private_response,
+        pOptionInfo->disable_gzip_output, pOptionInfo->first_byte_flush);
+  }
+
+  return result;
+}
+
+void
+TSPluginInit(int argc, const char *argv[]) {
+  struct OptionInfo *pOptionInfo = (struct OptionInfo *)TSmalloc(sizeof(struct OptionInfo));
+  if (pOptionInfo == NULL) {
+    TSError("[%s] malloc %d bytes fail", __FUNCTION__, (int)sizeof(struct OptionInfo));
+    return;
+  }
+  if (esiPluginInit(argc, argv, pOptionInfo) != 0) {
+    return;
+  }
+
+  TSCont global_contp = TSContCreate(globalHookHandler, NULL);
+  if (!global_contp) {
+    TSError("[%s] Could not create global continuation", __FUNCTION__);
+    return;
+  }
+  TSContDataSet(global_contp, pOptionInfo);
+
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, global_contp);
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, global_contp);
+  TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, global_contp);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin as a remap plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    snprintf(errbuf, errbuf_size, "[TSRemapInit] - Invalid TSRemapInterface argument");
+    TSError("[TSRemapInit] - Invalid TSRemapInterface argument");
+    return TS_ERROR;
+  }
+
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    snprintf(errbuf, errbuf_size, "[TSRemapInit] - Incorrect size of TSRemapInterface structure");
+    TSError("[TSRemapInit] - Incorrect size of TSRemapInterface structure");
+    return TS_ERROR;
+  }
+
+  TSDebug(DEBUG_TAG, "esi remap plugin is successfully initialized");
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** ih, char* errbuf, int errbuf_size)
+{
+  if (argc < 2) {
+    snprintf(errbuf, errbuf_size, "Unable to create remap instance, " \
+        "argc: %d < 2", argc);
+    TSError("Unable to create remap instance! argc: %d < 2", argc);
+    return TS_ERROR;
+  }
+
+  int index = 0;
+  const char *new_argv[argc];
+
+  new_argv[index++] = "esi.so";
+  for (int i=2; i<argc; i++) {
+    new_argv[index++] = argv[i];
+  }
+  new_argv[index] = NULL;
+
+  struct OptionInfo *pOptionInfo = (struct OptionInfo *)TSmalloc(sizeof(struct OptionInfo));
+  if (pOptionInfo == NULL) {
+    snprintf(errbuf, errbuf_size, "malloc %d bytes fail", (int)sizeof(struct OptionInfo));
+    TSError("[%s] malloc %d bytes fail", __FUNCTION__, (int)sizeof(struct OptionInfo));
+    return TS_ERROR;
+  }
+  if (esiPluginInit(index, new_argv, pOptionInfo) != 0) {
+    snprintf(errbuf, errbuf_size, "esiPluginInit fail!");
+    return TS_ERROR;
+  }
+  TSCont contp = TSContCreate(globalHookHandler, NULL);
+  TSContDataSet(contp, pOptionInfo);
+  *ih = static_cast<void*>(contp);
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  TSCont contp = static_cast<TSCont>(ih);
+  if (contp != NULL) {
+    TSContDestroy(contp);
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Main entry point when used as a remap plugin.
+//
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn txnp, TSRemapRequestInfo * /* rri ATS_UNUSED */)
+{
+  if (NULL != ih) {
+    TSCont contp = static_cast<TSCont>(ih);
+    TSHttpTxnHookAdd(txnp, TS_HTTP_READ_RESPONSE_HDR_HOOK, contp);
+    TSHttpTxnHookAdd(txnp, TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, contp);
+
+    if (isInterceptRequest(txnp)) {
+      if (!setupServerIntercept(txnp)) {
+        TSError("[%s] Could not setup server intercept", __FUNCTION__);
+      } else {
+        TSDebug(DEBUG_TAG, "[%s] Setup server intercept", __FUNCTION__);
+      }
+    } else {
+      TSDebug(DEBUG_TAG, "[%s] Not setting up intercept", __FUNCTION__);
+    }
+  }
+
+  return TSREMAP_NO_REMAP; // This plugin never rewrites anything.
+}
+
diff --git a/plugins/experimental/esi/fetcher/FetchedDataProcessor.h b/plugins/experimental/esi/fetcher/FetchedDataProcessor.h
new file mode 100644
index 00000000..eaff1891
--- /dev/null
+++ b/plugins/experimental/esi/fetcher/FetchedDataProcessor.h
@@ -0,0 +1,41 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _FETCHED_DATA_PROCESSOR_H
+
+#define _FETCHED_DATA_PROCESSOR_H
+
+class FetchedDataProcessor { 
+
+public:
+
+  FetchedDataProcessor() { };
+
+  virtual void processData(const char *reqeust_url, int request_url_len, 
+                           const char *response_data, int response_data_len) = 0;
+
+  virtual ~FetchedDataProcessor() { };
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/fetcher/HttpDataFetcher.h b/plugins/experimental/esi/fetcher/HttpDataFetcher.h
new file mode 100644
index 00000000..bda0e0ec
--- /dev/null
+++ b/plugins/experimental/esi/fetcher/HttpDataFetcher.h
@@ -0,0 +1,74 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _HTTP_DATA_FETCHER_H
+#define _HTTP_DATA_FETCHER_H
+
+#include <string>
+
+#include "FetchedDataProcessor.h"
+
+enum DataStatus { STATUS_ERROR = -1, STATUS_DATA_AVAILABLE = 0, STATUS_DATA_PENDING = 1  };
+
+class HttpDataFetcher
+{
+
+public:
+
+  virtual bool addFetchRequest(const char *url, int url_len, FetchedDataProcessor *callback_obj = 0) {
+    return addFetchRequest(std::string(url, url_len), callback_obj);
+  }
+
+  virtual bool addFetchRequest(const char *url, FetchedDataProcessor *callback_obj = 0) {
+    return addFetchRequest(std::string(url), callback_obj);
+  }
+
+  virtual bool addFetchRequest(const std::string &url, FetchedDataProcessor *callback_obj = 0) = 0;
+
+  virtual DataStatus getRequestStatus(const char *url, int url_len) const {
+    return getRequestStatus(std::string(url, url_len));
+  }
+
+  virtual DataStatus getRequestStatus(const char *url) const {
+    return getRequestStatus(std::string(url));
+  }
+
+  virtual DataStatus getRequestStatus(const std::string &url) const = 0;
+
+  virtual int getNumPendingRequests() const = 0;
+
+  virtual bool getContent(const char *url, int url_len, const char *&content, int &content_len) const {
+    return getContent(std::string(url, url_len), content, content_len);
+  }
+
+  virtual bool getContent(const char *url, const char *&content, int &content_len) const {
+    return getContent(std::string(url), content, content_len);
+  }
+
+  virtual bool getContent(const std::string &url, const char *&content, int &content_len) const = 0;
+
+  virtual ~HttpDataFetcher() { };
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/fetcher/HttpDataFetcherImpl.cc b/plugins/experimental/esi/fetcher/HttpDataFetcherImpl.cc
new file mode 100644
index 00000000..762bf052
--- /dev/null
+++ b/plugins/experimental/esi/fetcher/HttpDataFetcherImpl.cc
@@ -0,0 +1,357 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HttpDataFetcherImpl.h"
+#include "lib/Utils.h"
+#include "lib/gzip.h"
+
+#include <arpa/inet.h>
+#include <stdlib.h>
+
+using std::string;
+using namespace EsiLib;
+
+const int HttpDataFetcherImpl::FETCH_EVENT_ID_BASE = 10000;
+
+inline void HttpDataFetcherImpl::_release(RequestData &req_data)
+{
+  if (req_data.bufp) {
+    if (req_data.hdr_loc) {
+      TSHandleMLocRelease(req_data.bufp, TS_NULL_MLOC, req_data.hdr_loc);
+      req_data.hdr_loc = 0;
+    }
+    TSMBufferDestroy(req_data.bufp);
+    req_data.bufp = 0;
+  }
+}
+
+HttpDataFetcherImpl::HttpDataFetcherImpl(TSCont contp,sockaddr const* client_addr,
+                                         const char *debug_tag)
+  : _contp(contp), _n_pending_requests(0), _curr_event_id_base(FETCH_EVENT_ID_BASE),
+    _headers_str(""),_client_addr(client_addr)
+{
+  _http_parser = TSHttpParserCreate();
+  snprintf(_debug_tag, sizeof(_debug_tag), "%s", debug_tag);
+}
+
+HttpDataFetcherImpl::~HttpDataFetcherImpl()
+{ 
+  clear(); 
+  TSHttpParserDestroy(_http_parser); 
+}
+
+bool
+HttpDataFetcherImpl::addFetchRequest(const string &url, FetchedDataProcessor *callback_obj /* = 0 */)
+{
+  // do we already have a request for this?
+  std::pair<UrlToContentMap::iterator, bool> insert_result = 
+    _pages.insert(UrlToContentMap::value_type(url, RequestData()));
+  if (callback_obj) {
+    ((insert_result.first)->second).callback_objects.push_back(callback_obj);
+  }
+  if (!insert_result.second) {
+    TSDebug(_debug_tag, "[%s] Fetch request for url [%s] already added", __FUNCTION__,
+             url.data());
+    return true;
+  }
+
+  char buff[1024]; 
+  char *http_req;
+  int length;
+
+  length = sizeof("GET ") - 1 + url.length() + sizeof(" HTTP/1.0\r\n") - 1 + _headers_str.length() + sizeof("\r\n") - 1;
+  if (length < (int)sizeof(buff)) {
+    http_req = buff;
+  }else {
+    http_req = (char *)malloc(length + 1);
+    if (http_req == NULL) {
+      TSError("[%s] malloc %d bytes fail", __FUNCTION__, length + 1);
+      return false;
+    }
+  }
+
+  sprintf(http_req, "GET %s HTTP/1.0\r\n%s\r\n", url.c_str(), _headers_str.c_str());
+
+  TSFetchEvent event_ids;
+  event_ids.success_event_id = _curr_event_id_base;
+  event_ids.failure_event_id = _curr_event_id_base + 1;
+  event_ids.timeout_event_id = _curr_event_id_base + 2;
+  _curr_event_id_base += 3;
+
+  TSFetchUrl(http_req, length, _client_addr, _contp, AFTER_BODY, event_ids);
+  if (http_req != buff) {
+    free(http_req);
+  }
+  
+  TSDebug(_debug_tag, "[%s] Successfully added fetch request for URL [%s]", __FUNCTION__, url.data());
+  _page_entry_lookup.push_back(insert_result.first);
+  ++_n_pending_requests;
+  return true;
+}
+
+bool
+HttpDataFetcherImpl::_isFetchEvent(TSEvent event, int &base_event_id) const
+{
+  base_event_id = _getBaseEventId(event);
+  if ((base_event_id < 0) || (base_event_id >= static_cast<int>(_page_entry_lookup.size()))) {
+    TSDebug(_debug_tag, "[%s] Event id %d not within fetch event id range [%d, %ld)",
+             __FUNCTION__, event, FETCH_EVENT_ID_BASE,
+             static_cast<long int>(FETCH_EVENT_ID_BASE + (_page_entry_lookup.size() * 3)));
+    return false;
+  }
+  return true;
+}
+
+bool
+HttpDataFetcherImpl::handleFetchEvent(TSEvent event, void *edata)
+{
+  int base_event_id;
+  if (!_isFetchEvent(event, base_event_id)) {
+    TSError("[%s] Event %d is not a fetch event", __FUNCTION__, event);
+    return false;
+  }
+
+  UrlToContentMap::iterator &req_entry = _page_entry_lookup[base_event_id];
+  const string &req_str = req_entry->first;
+  RequestData &req_data = req_entry->second;
+
+  if (req_data.complete) {
+    // can only happen if there's a bug in this or fetch API code
+    TSError("[%s] URL [%s] already completed; Retaining original data", __FUNCTION__, req_str.c_str());
+    return false;
+  }
+
+  --_n_pending_requests;
+  req_data.complete = true;
+
+  int event_id = (static_cast<int>(event) - FETCH_EVENT_ID_BASE) % 3;
+  if (event_id != 0) { // failure or timeout
+    TSError("[%s] Received failure/timeout event id %d for request [%s]", __FUNCTION__, event_id, req_str.data());
+    return true;
+  }
+
+  int page_data_len;
+  const char *page_data = TSFetchRespGet(static_cast<TSHttpTxn>(edata), &page_data_len);
+  req_data.response.assign(page_data, page_data_len);
+  bool valid_data_received = false;
+  const char *startptr = req_data.response.data(), *endptr = startptr + page_data_len;
+
+  req_data.bufp = TSMBufferCreate();
+  req_data.hdr_loc = TSHttpHdrCreate(req_data.bufp);
+  TSHttpHdrTypeSet(req_data.bufp, req_data.hdr_loc, TS_HTTP_TYPE_RESPONSE);
+  TSHttpParserClear(_http_parser);
+  
+  if (TSHttpHdrParseResp(_http_parser, req_data.bufp, req_data.hdr_loc, &startptr, endptr) == TS_PARSE_DONE) {
+    req_data.resp_status = TSHttpHdrStatusGet(req_data.bufp, req_data.hdr_loc);
+    valid_data_received = true;
+    if (req_data.resp_status == TS_HTTP_STATUS_OK) {
+      req_data.body_len = endptr - startptr;
+      req_data.body = startptr;
+      TSDebug(_debug_tag,
+               "[%s] Inserted page data of size %d starting with [%.6s] for request [%s]", __FUNCTION__,
+               req_data.body_len, (req_data.body_len ? req_data.body : "(null)"), req_str.c_str());
+
+      if (_checkHeaderValue(req_data.bufp, req_data.hdr_loc,
+                       TS_MIME_FIELD_CONTENT_ENCODING,
+                       TS_MIME_LEN_CONTENT_ENCODING,
+                       TS_HTTP_VALUE_GZIP, TS_HTTP_LEN_GZIP, false)) {
+        BufferList buf_list;
+        req_data.raw_response = "";
+        if (gunzip(req_data.body, req_data.body_len, buf_list)) {
+          for (BufferList::iterator iter = buf_list.begin(); iter != buf_list.end(); ++iter) {
+            req_data.raw_response.append(iter->data(),iter->size());
+          }
+        } else {
+          TSError("[%s] Error while gunzipping data", __FUNCTION__);
+        }
+        req_data.body_len = req_data.raw_response.size();
+        req_data.body = req_data.raw_response.data();
+      }
+
+      for (CallbackObjectList::iterator list_iter = req_data.callback_objects.begin();
+           list_iter != req_data.callback_objects.end(); ++list_iter) {
+        (*list_iter)->processData(req_str.data(), req_str.size(), req_data.body, req_data.body_len);
+      }
+
+    } else {
+      TSDebug(_debug_tag, "[%s] Received non-OK status %d for request [%s]",
+               __FUNCTION__, req_data.resp_status, req_str.data());
+
+      string empty_response = "";
+      for (CallbackObjectList::iterator list_iter = req_data.callback_objects.begin();
+           list_iter != req_data.callback_objects.end(); ++list_iter) {
+         (*list_iter)->processData(req_str.data(), req_str.size(), empty_response.data(), empty_response.size());
+      }
+    }
+  } else {
+    TSDebug(_debug_tag, "[%s] Could not parse response for request [%s]",
+             __FUNCTION__, req_str.data());
+  }
+
+  if (!valid_data_received) {
+    _release(req_data);
+    req_data.response.clear();
+  }
+
+  return true;
+}
+
+bool
+HttpDataFetcherImpl::_checkHeaderValue(TSMBuffer bufp, TSMLoc hdr_loc, const char *name, int name_len,
+                 const char *exp_value, int exp_value_len, bool prefix) const
+{
+  TSMLoc field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, name, name_len);
+  if (!field_loc) {
+    return false;
+  }
+
+  bool retval = false;
+
+  if (exp_value && exp_value_len) {
+    const char *value;
+    int value_len;
+    int n_values = TSMimeHdrFieldValuesCount(bufp, hdr_loc, field_loc);
+
+    for (int i = 0; i < n_values; ++i) {
+      value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, i, &value_len);
+      if ( NULL != value || value_len ) {
+        if (prefix) {
+          if ((value_len >= exp_value_len) &&
+              (strncasecmp(value, exp_value, exp_value_len) == 0)) {
+            retval = true;
+          }
+        } else if (Utils::areEqual(value, value_len, exp_value, exp_value_len)) {
+          retval = true;
+        }
+      } else {
+        TSDebug(_debug_tag, "[%s] Error while getting value # %d of header [%.*s]", __FUNCTION__,
+                 i, name_len, name);
+      }
+      if (retval) {
+        break;
+      }
+    }
+  } else { // only presence required
+    retval = true;
+  }
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  return retval;
+}
+
+bool
+HttpDataFetcherImpl::getData(const string &url, ResponseData &resp_data) const
+{
+  UrlToContentMap::const_iterator iter = _pages.find(url);
+
+  if (iter == _pages.end()) {
+    TSError("Content being requested for unregistered URL [%s]", url.data());
+    return false;
+  }
+  const RequestData &req_data = iter->second; // handy reference
+  if (!req_data.complete) {
+    // request not completed yet
+    TSError("Request for URL [%s] not complete", url.data());
+    return false;
+  }
+  if (req_data.response.empty()) {
+    // did not receive valid data
+    TSError("No valid data received for URL [%s]; returning empty data to be safe", url.data());
+    resp_data.clear();
+    return false;
+  }
+
+  resp_data.set(req_data.body, req_data.body_len, req_data.bufp, req_data.hdr_loc, req_data.resp_status);
+  TSDebug(_debug_tag, "[%s] Found data for URL [%s] of size %d starting with [%.5s]",
+           __FUNCTION__, url.data(), req_data.body_len, req_data.body);
+  return true;
+}
+
+void
+HttpDataFetcherImpl::clear()
+{
+  for (UrlToContentMap::iterator iter = _pages.begin(); iter != _pages.end(); ++iter) {
+    _release(iter->second);
+  }
+  _n_pending_requests = 0;
+  _pages.clear();
+  _page_entry_lookup.clear();
+  _headers_str.clear();
+  _curr_event_id_base = FETCH_EVENT_ID_BASE;
+}
+
+DataStatus
+HttpDataFetcherImpl::getRequestStatus(const string &url) const
+{
+  UrlToContentMap::const_iterator iter = _pages.find(url);
+  if (iter == _pages.end()) {
+    TSError("Status being requested for unregistered URL [%s]", url.data());
+    return STATUS_ERROR;
+  }
+
+  if (!(iter->second).complete) {
+    return STATUS_DATA_PENDING;
+  }
+
+  if ((iter->second).resp_status != TS_HTTP_STATUS_OK) {
+    return STATUS_ERROR;
+  }
+
+  return STATUS_DATA_AVAILABLE;
+}
+
+void
+HttpDataFetcherImpl::useHeader(const HttpHeader &header)
+{
+  // request data body would not be passed to async request and so we should not pass on the content length
+  if (Utils::areEqual(header.name, header.name_len, TS_MIME_FIELD_CONTENT_LENGTH, TS_MIME_LEN_CONTENT_LENGTH)) {
+    return;
+  }
+
+  // should not support partial request for async request
+  if (Utils::areEqual(header.name, header.name_len, TS_MIME_FIELD_RANGE, TS_MIME_LEN_RANGE)) {
+    return;
+  }
+
+  // should not support keep-alive for async requests
+  if (Utils::areEqual(header.name, header.name_len, TS_MIME_FIELD_CONNECTION, TS_MIME_LEN_CONNECTION)) {
+      return;
+  }
+
+  // should not support keep-alive for async requests
+  if (Utils::areEqual(header.name, header.name_len, TS_MIME_FIELD_PROXY_CONNECTION, TS_MIME_LEN_PROXY_CONNECTION)) {
+      return;
+  }
+
+  _headers_str.append(header.name, header.name_len);
+  _headers_str.append(": ");
+  _headers_str.append(header.value, header.value_len);
+  _headers_str.append("\r\n");
+}
+
+void
+HttpDataFetcherImpl::useHeaders(const HttpHeaderList &headers)
+{
+  for (HttpHeaderList::const_iterator iter = headers.begin(); iter != headers.end(); ++iter) {
+    useHeader(*iter);
+  }
+}
diff --git a/plugins/experimental/esi/fetcher/HttpDataFetcherImpl.h b/plugins/experimental/esi/fetcher/HttpDataFetcherImpl.h
new file mode 100644
index 00000000..29dccaaa
--- /dev/null
+++ b/plugins/experimental/esi/fetcher/HttpDataFetcherImpl.h
@@ -0,0 +1,148 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _HTTP_DATA_FETCHER_IMPL_H
+#define _HTTP_DATA_FETCHER_IMPL_H
+
+#include <string>
+#include <list>
+#include <vector>
+
+#include "ts/ts.h"
+#include "lib/StringHash.h"
+#include "lib/HttpHeader.h"
+#include "HttpDataFetcher.h"
+
+class HttpDataFetcherImpl : public HttpDataFetcher
+{
+
+public:
+
+  HttpDataFetcherImpl(TSCont contp, sockaddr const* client_addr, const char *debug_tag);
+
+  void useHeader(const EsiLib::HttpHeader &header);
+  
+  void useHeaders(const EsiLib::HttpHeaderList &headers);
+
+  bool addFetchRequest(const std::string &url, FetchedDataProcessor *callback_obj = 0);
+  
+  bool handleFetchEvent(TSEvent event, void *edata);
+
+  bool isFetchEvent(TSEvent event) const {
+    int base_event_id;
+    return _isFetchEvent(event, base_event_id);
+  }
+
+  bool isFetchComplete() const { return (_n_pending_requests == 0); };
+
+  DataStatus getRequestStatus(const std::string &url) const;
+
+  int getNumPendingRequests() const { return _n_pending_requests; };
+
+  // used to return data to callers
+  struct ResponseData {
+    const char *content;
+    int content_len;
+    TSMBuffer bufp;
+    TSMLoc hdr_loc;
+    TSHttpStatus status;
+    ResponseData() { set(0, 0, 0, 0, TS_HTTP_STATUS_NONE); }
+    inline void set(const char *c, int clen, TSMBuffer b, TSMLoc loc, TSHttpStatus s);
+    void clear() { set(0, 0, 0, 0, TS_HTTP_STATUS_NONE); }
+  };
+
+  bool getData(const std::string &url, ResponseData &resp_data) const;
+
+  bool getContent(const std::string &url, const char *&content, int &content_len) const {
+    ResponseData resp;
+    if (getData(url, resp)) {
+      content = resp.content;
+      content_len = resp.content_len;
+      return true;
+    }
+    return false;
+  }
+
+  void clear();
+
+  ~HttpDataFetcherImpl();
+
+private:
+  
+  TSCont _contp;
+  char _debug_tag[64];
+
+  typedef std::list<FetchedDataProcessor *> CallbackObjectList;
+ 
+  // used to track a request that was made
+  struct RequestData {
+    std::string response;
+    std::string raw_response;
+    const char *body;
+    int body_len;
+    TSHttpStatus resp_status;
+    CallbackObjectList callback_objects;
+    bool complete;
+    TSMBuffer bufp;
+    TSMLoc hdr_loc;
+
+    RequestData() : body(0), body_len(0), resp_status(TS_HTTP_STATUS_NONE), complete(false), bufp(0), hdr_loc(0) { }
+  };
+
+  typedef __gnu_cxx::hash_map<std::string, RequestData, EsiLib::StringHasher> UrlToContentMap;
+  UrlToContentMap _pages;
+
+  typedef std::vector<UrlToContentMap::iterator> IteratorArray;
+  IteratorArray _page_entry_lookup; // used to map event ids to requests
+
+  int _n_pending_requests;
+  int _curr_event_id_base;
+  TSHttpParser _http_parser;
+
+  static const int FETCH_EVENT_ID_BASE;
+
+  int _getBaseEventId(TSEvent event) const {
+    return (static_cast<int>(event) - FETCH_EVENT_ID_BASE) / 3; // integer division
+  }
+
+  bool _isFetchEvent(TSEvent event, int &base_event_id) const;
+  bool _checkHeaderValue(TSMBuffer bufp, TSMLoc hdr_loc, const char *name, int name_len, const char *exp_value, int exp_value_len, bool prefix) const;
+
+
+  std::string _headers_str;
+  
+  inline void _release(RequestData &req_data);
+
+  sockaddr const* _client_addr;
+};
+
+inline void
+HttpDataFetcherImpl::ResponseData::set(const char *c, int clen, TSMBuffer b, TSMLoc loc, TSHttpStatus s) {
+  content = c;
+  content_len = clen;
+  bufp = b;
+  hdr_loc = loc;
+  status = s;
+}
+
+#endif
diff --git a/plugins/experimental/esi/handlers.cfg b/plugins/experimental/esi/handlers.cfg
new file mode 100644
index 00000000..abc39186
--- /dev/null
+++ b/plugins/experimental/esi/handlers.cfg
@@ -0,0 +1,27 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
+# Format of this file:
+# 
+# <include-handler-id> <full-path-to-shared-object>
+#
+#
+# Example:
+#
+# ads /home/y/libexec/yts/esi_ads.so
+#
diff --git a/plugins/experimental/esi/lib/Attribute.h b/plugins/experimental/esi/lib/Attribute.h
new file mode 100644
index 00000000..0b284e0b
--- /dev/null
+++ b/plugins/experimental/esi/lib/Attribute.h
@@ -0,0 +1,44 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_ATTRIBUTE_H
+#define _ESI_ATTRIBUTE_H
+
+#include <list>
+
+namespace EsiLib {
+
+struct Attribute {
+  const char *name;
+  int32_t name_len;
+  const char *value;
+  int32_t value_len;
+  Attribute(const char *n = 0, int32_t n_len = 0, const char *v = 0, int32_t v_len = 0)
+    : name(n), name_len(n_len), value(v), value_len(v_len) { };
+};
+
+typedef std::list<Attribute> AttributeList;
+
+};
+
+#endif // _ESI_ATTRIBUTE_H
diff --git a/plugins/experimental/esi/lib/ComponentBase.h b/plugins/experimental/esi/lib/ComponentBase.h
new file mode 100644
index 00000000..487a6c93
--- /dev/null
+++ b/plugins/experimental/esi/lib/ComponentBase.h
@@ -0,0 +1,60 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_COMPONENT_BASE_H
+#define _ESI_COMPONENT_BASE_H
+
+#include <stdio.h>
+#include <string>
+
+namespace EsiLib {
+
+#define DEBUG_TAG_MAX_SIZE 64
+
+/** class that has common private characteristics */
+class ComponentBase
+{
+
+public:
+
+  typedef void (*Debug)(const char *, const char *, ...);
+  typedef void (*Error)(const char *, ...);
+
+protected:
+  
+  ComponentBase(const char *debug_tag, Debug debug_func, Error error_func) 
+    : _debugLog(debug_func), _errorLog(error_func) {
+      snprintf(_debug_tag, sizeof(_debug_tag), "%s", debug_tag);
+  };
+  
+  char _debug_tag[DEBUG_TAG_MAX_SIZE];
+  Debug _debugLog;
+  Error _errorLog;
+  
+  virtual ~ComponentBase() { };
+
+};
+
+};
+
+#endif // _ESI_COMPONENT_BASE_H
diff --git a/plugins/experimental/esi/lib/DocNode.cc b/plugins/experimental/esi/lib/DocNode.cc
new file mode 100644
index 00000000..c35f28ab
--- /dev/null
+++ b/plugins/experimental/esi/lib/DocNode.cc
@@ -0,0 +1,162 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "DocNode.h"
+#include "Utils.h"
+
+using std::string;
+using namespace EsiLib;
+
+const char *DocNode::type_names_[] = { "UNKNOWN",
+                                       "PRE",
+                                       "INCLUDE",
+                                       "COMMENT",
+                                       "REMOVE",
+                                       "VARS",
+                                       "CHOOSE",
+                                       "WHEN",
+                                       "OTHERWISE",
+                                       "TRY",
+                                       "ATTEMPT",
+                                       "EXCEPT",
+                                       "HTML_COMMENT",
+                                       "SPECIAL_INCLUDE"
+};
+
+// helper functions 
+
+inline void
+packString(const char *str, int32_t str_len, string &buffer) {
+  buffer.append(reinterpret_cast<const char *>(&str_len), sizeof(str_len));
+  if (str_len) {
+    buffer.append(str, str_len);
+  }
+}
+
+inline void
+unpackString(const char *&packed_data, const char *&item, int32_t &item_len) {
+  item_len = *(reinterpret_cast<const int32_t *>(packed_data));
+  packed_data += sizeof(int32_t);
+  item = item_len ? packed_data : 0;
+  packed_data += item_len;
+}
+
+template<typename T> inline void
+unpackItem(const char *&packed_data, T &item) {
+  item = *(reinterpret_cast<const T *>(packed_data));
+  packed_data += sizeof(T);
+}
+
+void
+DocNode::pack(string &buffer) const {
+  int32_t orig_buf_size = buffer.size();
+  buffer += DOCNODE_VERSION;
+  buffer.append(sizeof(int32_t), ' '); // reserve space for length
+  buffer.append(reinterpret_cast<const char *>(&type), sizeof(type));
+  packString(data, data_len, buffer);
+  int32_t n_elements = attr_list.size();
+  buffer.append(reinterpret_cast<const char *>(&n_elements), sizeof(n_elements));
+  for (AttributeList::const_iterator iter = attr_list.begin(); iter != attr_list.end(); ++iter) {
+    packString(iter->name, iter->name_len, buffer);
+    packString(iter->value, iter->value_len, buffer);
+  }
+  child_nodes.packToBuffer(buffer);
+  *(reinterpret_cast<int32_t *>(&buffer[orig_buf_size + 1])) = buffer.size() - orig_buf_size;
+}
+
+bool
+DocNode::unpack(const char *packed_data, int packed_data_len, int &node_len) {
+  const char *packed_data_start = packed_data;
+
+  if (!packed_data || (packed_data_len < static_cast<int>((sizeof(char) + sizeof(int32_t))))) {
+    Utils::ERROR_LOG("[%s] Invalid arguments (%p, %d)", __FUNCTION__, packed_data, packed_data_len);
+    return false;
+  }
+  if (*packed_data != DOCNODE_VERSION) {
+    Utils::ERROR_LOG("[%s] Version %d not in supported set (%d)",
+                     __FUNCTION__, static_cast<int>(*packed_data), static_cast<int>(DOCNODE_VERSION));
+    return false;
+  }
+  ++packed_data;
+
+  int32_t node_size;
+  unpackItem(packed_data, node_size);
+  if (node_size > packed_data_len) {
+    Utils::ERROR_LOG("[%s] Data size (%d) not sufficient to hold node of size %d",
+                     __FUNCTION__, packed_data_len, node_size);
+    return false;
+  }
+  node_len = node_size;
+
+  unpackItem(packed_data, type);
+
+  unpackString(packed_data, data, data_len);
+
+  int32_t n_elements;
+  unpackItem(packed_data, n_elements);
+  Attribute attr;
+  attr_list.clear();
+  for (int i = 0; i < n_elements; ++i) {
+    unpackString(packed_data, attr.name, attr.name_len);
+    unpackString(packed_data, attr.value, attr.value_len);
+    attr_list.push_back(attr);
+  }
+
+  if (!child_nodes.unpack(packed_data, packed_data_len - (packed_data - packed_data_start))) {
+    Utils::ERROR_LOG("[%s] Could not unpack child nodes", __FUNCTION__);
+    return false;
+  }
+  return true;
+}
+
+void
+DocNodeList::packToBuffer(string &buffer) const {
+  int32_t n_elements = size();
+  buffer.append(reinterpret_cast<const char *>(&n_elements), sizeof(n_elements));
+  for (DocNodeList::const_iterator iter = begin(); iter != end(); ++iter) {
+    iter->pack(buffer);
+  }
+}
+
+bool
+DocNodeList::unpack(const char *data, int data_len) {
+  if (!data || (data_len < static_cast<int>(sizeof(int32_t)))) {
+    Utils::ERROR_LOG("[%s] Invalid arguments", __FUNCTION__);
+    return false;
+  }
+  const char *data_start = data;
+  int32_t n_elements;
+  unpackItem(data, n_elements);
+  clear();
+  int data_offset = data - data_start, node_size;
+  DocNode node;
+  for (int i = 0; i < n_elements; ++i) {
+    if (!node.unpack(data_start + data_offset, data_len - data_offset, node_size)) {
+      Utils::ERROR_LOG("[%s] Could not unpack node", __FUNCTION__);
+      return false;
+    }
+    data_offset += node_size;
+    push_back(node);
+  }
+  return true;
+}
diff --git a/plugins/experimental/esi/lib/DocNode.h b/plugins/experimental/esi/lib/DocNode.h
new file mode 100644
index 00000000..fa1986ff
--- /dev/null
+++ b/plugins/experimental/esi/lib/DocNode.h
@@ -0,0 +1,114 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _FETCHER_DOC_NODE_H
+#define _FETCHER_DOC_NODE_H
+
+#include <stdint.h>
+#include <list>
+#include <string>
+
+#include "Attribute.h"
+
+namespace EsiLib {
+
+class DocNode;
+
+class DocNodeList : public std::list<DocNode> {
+
+public:
+
+  inline void pack(std::string &buffer, bool retain_buffer_data = false) const {
+    if (!retain_buffer_data) {
+      buffer.clear();
+    }
+    packToBuffer(buffer);
+  }
+
+  inline std::string pack() const {
+    std::string buffer("");
+    pack(buffer);
+    return buffer;
+  }
+  
+  bool unpack(const char *data, int data_len);
+  
+  inline bool unpack(const std::string &data) {
+    return unpack(data.data(), data.size());
+  }
+
+private:
+
+  void packToBuffer(std::string &buffer) const;
+  
+  friend class DocNode; // to use the method above
+
+};
+
+
+class DocNode
+{
+  
+public:
+  enum TYPE {
+    TYPE_UNKNOWN = 0,
+    TYPE_PRE = 1,
+    TYPE_INCLUDE = 2,
+    TYPE_COMMENT = 3,
+    TYPE_REMOVE = 4,
+    TYPE_VARS = 5,
+    TYPE_CHOOSE = 6,
+    TYPE_WHEN = 7,
+    TYPE_OTHERWISE = 8,
+    TYPE_TRY = 9,
+    TYPE_ATTEMPT = 10,
+    TYPE_EXCEPT = 11,
+    TYPE_HTML_COMMENT = 12,
+    TYPE_SPECIAL_INCLUDE = 13,
+  };
+
+  // Use with care - only types defined above will have valid names 
+  static const char *type_names_[];
+
+  TYPE type;
+  const char *data;
+  int32_t data_len;
+
+  AttributeList attr_list;
+
+  DocNodeList child_nodes;
+
+  DocNode(TYPE _type = TYPE_UNKNOWN, const char *_data = 0, int32_t _data_len = 0) 
+    : type(_type), data(_data), data_len(_data_len) { };
+
+  void pack(std::string &buffer) const;
+
+  bool unpack(const char *data, int data_len, int &node_len);
+
+private:
+  static const char DOCNODE_VERSION = 1;
+};
+
+};
+
+#endif // _FETCHER_DOC_NODE_H
diff --git a/plugins/experimental/esi/lib/EsiGzip.cc b/plugins/experimental/esi/lib/EsiGzip.cc
new file mode 100644
index 00000000..c7d5534a
--- /dev/null
+++ b/plugins/experimental/esi/lib/EsiGzip.cc
@@ -0,0 +1,151 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "EsiGzip.h"
+#include "gzip.h"
+#include <ctype.h>
+#include <stdint.h>
+
+using std::string;
+using namespace EsiLib;
+
+EsiGzip::EsiGzip(const char *debug_tag,
+                           ComponentBase::Debug debug_func, ComponentBase::Error error_func)
+  : ComponentBase(debug_tag, debug_func, error_func),
+    _downstream_length(0), 
+    _total_data_length(0) {
+}
+
+template<typename T>
+inline void append(string &out, T data) {
+  for (unsigned int i = 0; i < sizeof(data); ++i) {
+    out += static_cast<char>(data & 0xff);
+    data = data >> 8;
+  }
+}
+
+inline int runDeflateLoop(z_stream &zstrm, int flush, std::string &cdata) {
+  char buf[BUF_SIZE];
+  int deflate_result = Z_OK;
+  do {
+    zstrm.next_out = reinterpret_cast<Bytef *>(buf);
+    zstrm.avail_out = BUF_SIZE;
+    deflate_result = deflate(&zstrm, flush);
+    if ((deflate_result == Z_OK) || (deflate_result == Z_STREAM_END)) {
+      cdata.append(buf, BUF_SIZE - zstrm.avail_out);
+      if ((deflate_result == Z_STREAM_END) || zstrm.avail_out > 6) {
+        break;
+      }
+    } else {
+      break;
+    }
+  } while (true);
+  return deflate_result;
+}
+
+bool
+EsiGzip::stream_encode(const char *data, int data_len, std::string &cdata) {
+  if(_downstream_length == 0) {
+    cdata.assign(GZIP_HEADER_SIZE, 0); // reserving space for the header
+    cdata[0] = MAGIC_BYTE_1;
+    cdata[1] = MAGIC_BYTE_2;
+    cdata[2] = Z_DEFLATED;
+    cdata[9] = OS_TYPE;
+
+    //_zstrm.zalloc = Z_NULL;
+    //_zstrm.zfree = Z_NULL;
+    //_zstrm.opaque = Z_NULL;
+    //if (deflateInit2(&_zstrm, COMPRESSION_LEVEL, Z_DEFLATED, -MAX_WBITS,
+    //               ZLIB_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK) {
+    //  _errorLog("[%s] deflateInit2 failed!", __FUNCTION__);
+    //  return false;
+    //}
+
+    _crc = crc32(0, Z_NULL, 0);
+  }
+  
+    _zstrm.zalloc = Z_NULL;
+    _zstrm.zfree = Z_NULL;
+    _zstrm.opaque = Z_NULL;
+    if (deflateInit2(&_zstrm, COMPRESSION_LEVEL, Z_DEFLATED, -MAX_WBITS,
+                   ZLIB_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK) {
+      _errorLog("[%s] deflateInit2 failed!", __FUNCTION__);
+      return false;
+    }
+
+  int deflate_result = Z_OK;
+  if (data && (data_len > 0)) {
+    _zstrm.next_in = reinterpret_cast<Bytef *>(const_cast<char *>(data));
+    _zstrm.avail_in = data_len;
+    deflate_result = runDeflateLoop(_zstrm, Z_FULL_FLUSH, cdata);
+    if (deflate_result != Z_OK) {
+      _errorLog("[%s] runDeflateLoop failed!", __FUNCTION__);
+
+      deflateEnd(&_zstrm);
+
+      return false;
+    }
+    _crc = crc32(_crc, reinterpret_cast<const Bytef *>(data), data_len);
+    _downstream_length += cdata.size();
+    _total_data_length += data_len;
+  }
+
+    deflateEnd(&_zstrm);    
+
+  return true;
+}
+
+bool EsiGzip::stream_finish(std::string &cdata, int&downstream_length) {
+  char buf[BUF_SIZE];
+
+    _zstrm.zalloc = Z_NULL;
+    _zstrm.zfree = Z_NULL;
+    _zstrm.opaque = Z_NULL;
+    if (deflateInit2(&_zstrm, COMPRESSION_LEVEL, Z_DEFLATED, -MAX_WBITS,
+                   ZLIB_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK) {
+      _errorLog("[%s] deflateInit2 failed!", __FUNCTION__);
+      return false;
+    }
+
+  _zstrm.next_in = reinterpret_cast<Bytef *>(buf);
+  _zstrm.avail_in = 0; 
+  // required for the "finish" loop as no data has been given so far
+  int deflate_result = runDeflateLoop(_zstrm, Z_FINISH, cdata);
+  deflateEnd(&_zstrm);
+  if (deflate_result != Z_STREAM_END) {
+    _errorLog("[%s] deflateEnd failed!", __FUNCTION__);
+    downstream_length = 0;
+    return false;
+  }
+  append(cdata, static_cast<uint32_t>(_crc));
+  append(cdata, static_cast<int32_t>(_total_data_length));
+  _downstream_length += cdata.size();
+  downstream_length = _downstream_length;
+  return true;
+}
+
+EsiGzip::~EsiGzip() {
+  _downstream_length = 0;
+  _total_data_length = 0;
+}
+
diff --git a/plugins/experimental/esi/lib/EsiGzip.h b/plugins/experimental/esi/lib/EsiGzip.h
new file mode 100644
index 00000000..1032d9ec
--- /dev/null
+++ b/plugins/experimental/esi/lib/EsiGzip.h
@@ -0,0 +1,60 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_GZIP_H
+#define _ESI_GZIP_H
+
+#include "ComponentBase.h"
+#include <zlib.h>
+#include <string>
+
+class EsiGzip : private EsiLib::ComponentBase
+{
+
+public:
+
+  EsiGzip(const char *debug_tag,
+               EsiLib::ComponentBase::Debug debug_func, EsiLib::ComponentBase::Error error_func);
+
+  virtual ~EsiGzip();
+
+  bool stream_encode(const char *data, int data_len, std::string &cdata);
+
+  inline bool stream_encode(std::string data, std::string &cdata) {
+    return stream_encode(data.data(), data.size(), cdata);
+  }
+
+  bool stream_finish(std::string &cdata, int&downstream_length);
+
+private:
+
+  //int runDeflateLoop(z_stream &zstrm, int flush, std::string &cdata);
+  int _downstream_length;
+  int _total_data_length;
+  z_stream _zstrm;
+  uLong _crc;
+};
+
+
+#endif // _ESI_GZIP_H
+
diff --git a/plugins/experimental/esi/lib/EsiParser.cc b/plugins/experimental/esi/lib/EsiParser.cc
new file mode 100644
index 00000000..22b68564
--- /dev/null
+++ b/plugins/experimental/esi/lib/EsiParser.cc
@@ -0,0 +1,656 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "EsiParser.h"
+#include "Utils.h"
+
+#include <ctype.h>
+
+using std::string;
+using namespace EsiLib;
+
+
+const char *EsiParser::ESI_TAG_PREFIX = "<esi:";
+const int EsiParser::ESI_TAG_PREFIX_LEN = 5;
+
+const string EsiParser::SRC_ATTR_STR("src");
+const string EsiParser::TEST_ATTR_STR("test");
+const string EsiParser::HANDLER_ATTR_STR("handler");
+
+const unsigned int EsiParser::MAX_DOC_SIZE = 1024 * 1024;
+
+const EsiParser::EsiNodeInfo EsiParser::ESI_NODES[] = {
+  EsiNodeInfo(DocNode::TYPE_INCLUDE, "include", 7, "/>", 2),
+  EsiNodeInfo(DocNode::TYPE_REMOVE, "remove>", 7, "</esi:remove>", 13),
+  EsiNodeInfo(DocNode::TYPE_COMMENT, "comment", 7, "/>", 2),
+  EsiNodeInfo(DocNode::TYPE_VARS, "vars>", 5, "</esi:vars>", 11),
+  EsiNodeInfo(DocNode::TYPE_CHOOSE, "choose>", 7, "</esi:choose>", 13),
+  EsiNodeInfo(DocNode::TYPE_WHEN, "when", 4, "</esi:when>", 11),
+  EsiNodeInfo(DocNode::TYPE_OTHERWISE, "otherwise>", 10, "</esi:otherwise>", 16),
+  EsiNodeInfo(DocNode::TYPE_TRY, "try>", 4, "</esi:try>", 10),
+  EsiNodeInfo(DocNode::TYPE_ATTEMPT, "attempt>", 8, "</esi:attempt>", 14),
+  EsiNodeInfo(DocNode::TYPE_EXCEPT, "except>", 7, "</esi:except>", 13),
+  EsiNodeInfo(DocNode::TYPE_SPECIAL_INCLUDE, "special-include", 15, "/>", 2),
+  EsiNodeInfo(DocNode::TYPE_UNKNOWN, "", 0, "", 0)  // serves as end marker
+};
+
+const EsiParser::EsiNodeInfo EsiParser::HTML_COMMENT_NODE_INFO(DocNode::TYPE_HTML_COMMENT,
+                                                               "<!--esi", 7, "-->", 3);
+
+EsiParser::EsiParser(const char *debug_tag, 
+                     ComponentBase::Debug debug_func, 
+                     ComponentBase::Error error_func) 
+  : ComponentBase(debug_tag, debug_func, error_func), _parse_start_pos(-1) {
+  // do this so that object doesn't move around in memory;
+  // (because we return pointers into this object)
+  _data.reserve(MAX_DOC_SIZE);
+}
+
+bool
+EsiParser::_setup(string &data, int &parse_start_pos, size_t &orig_output_list_size,
+                  DocNodeList &node_list, const char *data_ptr, int &data_len) const {
+  bool retval = true;
+  if (!data_ptr || !data_len) {
+    _debugLog(_debug_tag, "[%s] Returning true for empty data", __FUNCTION__);
+  }
+  else {
+    if (data_len == -1) {
+      data_len = strlen(data_ptr);
+    }
+    if ((data.size() + data_len) > MAX_DOC_SIZE) {
+      _errorLog("[%s] Cannot allow attempted doc of size %d; Max allowed size is %d", __FUNCTION__,
+                data.size() + data_len, MAX_DOC_SIZE);
+      retval = false;
+    }
+    else {
+      data.append(data_ptr, data_len);
+    }
+  }
+  if (parse_start_pos == -1) { // first time this cycle that input is being provided
+    parse_start_pos = 0;
+    orig_output_list_size = node_list.size();
+  }
+  return retval;
+}
+
+bool
+EsiParser::parseChunk(const char *data, DocNodeList &node_list, int data_len /* = -1 */) {
+  if (!_setup(_data, _parse_start_pos, _orig_output_list_size, node_list, data, data_len)) {
+    return false;
+  }
+  if (!_parse(_data, _parse_start_pos, node_list)) {
+    _errorLog("[%s] Failed to parse chunk of size %d starting with [%.5s]...", __FUNCTION__, data_len,
+              (data_len ? data : "(null)"));
+    return false;
+  }
+  return true;
+}
+
+bool
+EsiParser::_completeParse(string &data, int &parse_start_pos, size_t &orig_output_list_size,
+                          DocNodeList &node_list, const char *data_ptr /* = 0 */,
+                          int data_len /* = -1 */) const {
+  if (!_setup(data, parse_start_pos, orig_output_list_size, node_list, data_ptr, data_len)) {
+    return false;
+  }
+  if (!data.size()) {
+    _debugLog(_debug_tag, "[%s] No data to parse!", __FUNCTION__);
+    return true;
+  }
+  if (!_parse(data, parse_start_pos, node_list, true)) {
+    _errorLog("[%s] Failed to complete parse of data of total size %d starting with [%.5s]...", 
+              __FUNCTION__, data.size(), (data.size() ? data.data() : "(null)"));
+    node_list.resize(orig_output_list_size);
+    return false;
+  }
+  return true;
+}
+
+EsiParser::MATCH_TYPE
+EsiParser::_searchData(const string &data, size_t start_pos, const char *str, int str_len, size_t &pos) const {
+  const char *data_ptr = data.data() + start_pos;
+  int data_len = data.size() - start_pos;
+  int i_data = 0, i_str = 0; 
+
+  while (i_data < data_len) {
+    if (data_ptr[i_data] == str[i_str]) {
+      ++i_str;
+      if (i_str == str_len) {
+        break;
+      }
+    } else {
+      i_data -= i_str;
+      i_str = 0;
+    }
+    ++i_data;
+  }
+
+  if (i_str == str_len) {
+    pos = start_pos + i_data + 1 - i_str;
+    _debugLog(_debug_tag, "[%s] Found full match of %.*s in [%.5s...] at position %d", 
+              __FUNCTION__, str_len, str, data_ptr, pos);
+    return COMPLETE_MATCH;
+  } else if (i_str) {
+    pos = start_pos + i_data - i_str;
+    _debugLog(_debug_tag, "[%s] Found partial match of %.*s in [%.5s...] at position %d", 
+              __FUNCTION__, str_len, str, data_ptr, pos);
+    return PARTIAL_MATCH;
+  } else {
+    _debugLog(_debug_tag, "[%s] Found no match of %.*s in [%.5s...]", __FUNCTION__, str_len, str, data_ptr);
+    return NO_MATCH;
+  }
+}
+
+EsiParser::MATCH_TYPE
+EsiParser::_compareData(const string &data, size_t pos, const char *str, int str_len) const {
+  int i_str = 0;
+  size_t i_data = pos;
+  for (; i_data < data.size(); ++i_data) {
+    if (data[i_data] == str[i_str]) {
+      ++i_str;
+      if (i_str == str_len) {
+        _debugLog(_debug_tag, "[%s] string [%.*s] is equal to data at position %d", 
+                  __FUNCTION__, str_len, str, pos);
+        return COMPLETE_MATCH;
+      }
+    }
+    else {
+      /*
+      _debugLog(_debug_tag, "[%s] string [%.*s] is not equal to data at position %d", 
+                __FUNCTION__, str_len, str, pos);
+      */
+      return NO_MATCH;
+    }
+  }
+  _debugLog(_debug_tag, "[%s] string [%.*s] is partially equal to data at position %d", 
+            __FUNCTION__, str_len, str, pos);
+  return PARTIAL_MATCH;
+}
+
+/** This implementation is optimized but not completely correct.  If
+ * the opening tag were to have a repeating opening sequence ('<e<esi'
+ * or something like that), this will break. However that is not the
+ * case for the two opening tags we are looking for */
+EsiParser::MATCH_TYPE
+EsiParser::_findOpeningTag(const string &data, size_t start_pos,
+                           size_t &opening_tag_pos, bool &is_html_comment_node) const {
+  size_t i_data = start_pos;
+  int i_esi = 0, i_html_comment = 0;
+
+  while (i_data < data.size()) {
+    if (data[i_data] == ESI_TAG_PREFIX[i_esi]) {
+      if (++i_esi == ESI_TAG_PREFIX_LEN) {
+        is_html_comment_node = false;
+        opening_tag_pos = i_data - i_esi + 1;
+        return COMPLETE_MATCH;
+      }
+    } else {
+      if (i_esi) {
+        i_esi = 0;
+        --i_data;  // we do this to reexamine the current char as target string might start from here
+        if (i_html_comment) {
+          --i_html_comment; // in case other target string has started matching, adjust it's index
+        }
+      }
+    }
+    // doing the exact same thing for the other target string
+    if (i_html_comment < HTML_COMMENT_NODE_INFO.tag_suffix_len &&
+        data[i_data] == HTML_COMMENT_NODE_INFO.tag_suffix[i_html_comment]) {
+      if (++i_html_comment == HTML_COMMENT_NODE_INFO.tag_suffix_len &&
+          i_data + 1 < data.size()) {
+        char ch = data[i_data + 1];  //<!--esi must follow by a space char
+        if (ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n') {
+          is_html_comment_node = true;
+          opening_tag_pos = i_data - i_html_comment + 1;
+          return COMPLETE_MATCH;
+        }
+      }
+    } else {
+      if (i_html_comment) {
+        i_html_comment = 0;
+        --i_data; // same comments from above applies
+        if (i_esi) {
+          --i_esi;
+        }
+      }
+    }
+    ++i_data;
+  }
+  // partial matches; with the nature of our current opening tags, the
+  // only way we can have a partial match for both target strings is
+  // if the last char of the input string is '<' and that is not
+  // enough information to differentiate the tags; Anyway, the parser
+  // takes no action for a partial match
+  if (i_esi) {
+    is_html_comment_node = false;
+    opening_tag_pos = i_data - i_esi;
+    return PARTIAL_MATCH;
+  }
+  if (i_html_comment) {
+    is_html_comment_node = true;
+    opening_tag_pos = i_data - i_html_comment;
+    return PARTIAL_MATCH;
+  }
+  return NO_MATCH;
+}
+
+inline bool
+EsiParser::_processSimpleContentTag(DocNode::TYPE node_type, const char *data, int data_len,
+                                    DocNodeList &node_list) const {
+  DocNode new_node(node_type);
+  if (!parse(new_node.child_nodes, data, data_len)) {
+    _errorLog("[%s] Could not parse simple content of [%s] node", __FUNCTION__,
+              DocNode::type_names_[node_type]);
+    return false;
+  }
+  node_list.push_back(new_node);
+  return true;
+}
+
+bool
+EsiParser::_parse(const string &data, int &parse_start_pos,
+                  DocNodeList &node_list, bool last_chunk /* = false */) const {
+  size_t orig_list_size = node_list.size();
+  size_t curr_pos, end_pos;
+  const char *data_ptr;
+  const char *const data_start_ptr = data.data();
+  size_t data_size = data.size();
+  const EsiNodeInfo *node_info;
+  MATCH_TYPE search_result;
+  bool is_html_comment_node;
+  bool parse_result;
+
+  while (parse_start_pos < static_cast<int>(data_size)) {
+    search_result = _findOpeningTag(data, static_cast<int>(parse_start_pos), curr_pos, is_html_comment_node);
+    if (search_result == NO_MATCH) {
+      // we could add this chunk as a PRE node, but it might be
+      // possible that the next chunk is also a PRE node, in which
+      // case it is more correct to create one PRE node than two PRE
+      // nodes even though processing would result in the same final
+      // output in either case.  we are sacrificing a little
+      // performance (we'll have to parse this chunk again next time)
+      // for correctness
+      break;
+    }
+    if (search_result == PARTIAL_MATCH) {
+      goto lPartialMatch;
+    }
+
+    // we have a complete match of the opening tag
+    if ((curr_pos - parse_start_pos) > 0) {
+      // add text till here as a PRE node
+      _debugLog(_debug_tag, "[%s], Adding data of size %d before (newly found) ESI tag as PRE node", 
+                __FUNCTION__, curr_pos - parse_start_pos);
+      node_list.push_back(DocNode(DocNode::TYPE_PRE, 
+                                  data_start_ptr + parse_start_pos, curr_pos - parse_start_pos));
+      parse_start_pos = curr_pos;
+    }
+    
+    if (is_html_comment_node) {
+      _debugLog(_debug_tag, "[%s] Found html comment tag at position %d", __FUNCTION__, curr_pos);
+      data_ptr = data_start_ptr + curr_pos;
+      node_info = &HTML_COMMENT_NODE_INFO;
+      ++curr_pos;
+    } else {
+      curr_pos += ESI_TAG_PREFIX_LEN;
+      data_ptr = data_start_ptr + curr_pos;
+      
+      for (node_info = ESI_NODES; node_info->type != DocNode::TYPE_UNKNOWN; ++node_info) {
+        search_result = _compareData(data, curr_pos, node_info->tag_suffix, node_info->tag_suffix_len);
+        if (search_result == COMPLETE_MATCH) {
+          if (node_info->tag_suffix[node_info->tag_suffix_len - 1] == '>') {
+            _debugLog(_debug_tag, "[%s] Found [%s] tag at position %d",
+                __FUNCTION__, DocNode::type_names_[node_info->type], curr_pos - ESI_TAG_PREFIX_LEN);
+            break;
+          } else {
+            if (curr_pos + node_info->tag_suffix_len < data_size) {
+              char ch = data_start_ptr[curr_pos + node_info->tag_suffix_len];
+              if (ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n') {
+                _debugLog(_debug_tag, "[%s] Found [%s] tag at position %d",
+                    __FUNCTION__, DocNode::type_names_[node_info->type], curr_pos - ESI_TAG_PREFIX_LEN);
+                ++curr_pos; //skip the space char
+                break;
+              } else if(ch == '/' || ch == '>') {
+                _debugLog(_debug_tag, "[%s] Found [%s] tag at position %d",
+                    __FUNCTION__, DocNode::type_names_[node_info->type], curr_pos - ESI_TAG_PREFIX_LEN);
+                break;
+              }
+            } else {
+              goto lPartialMatch;
+            }
+          }
+        } else if (search_result == PARTIAL_MATCH) {
+          goto lPartialMatch;
+        }
+      }
+      if (node_info->type == DocNode::TYPE_UNKNOWN) {
+        _errorLog("[%s] Unknown ESI tag starting with [%.10s]...", __FUNCTION__, data_ptr - ESI_TAG_PREFIX_LEN);
+        goto lFail;
+      }
+    }
+
+    curr_pos += node_info->tag_suffix_len;
+    search_result = _searchData(data, curr_pos, node_info->closing_tag, node_info->closing_tag_len, end_pos);
+
+    if ((search_result == NO_MATCH) || (search_result == PARTIAL_MATCH)) {
+      if (last_chunk) {
+        _errorLog("[%s] ESI tag starting with [%.10s]... has no matching closing tag [%.*s]", __FUNCTION__, 
+                  data_ptr - ESI_TAG_PREFIX_LEN, node_info->closing_tag_len, node_info->closing_tag);
+        goto lFail;
+      }
+      else {
+        goto lPartialMatch;
+      }
+    }
+
+    // now we process only complete nodes
+    switch(node_info->type) {
+      case DocNode::TYPE_INCLUDE:
+        _debugLog(_debug_tag, "[%s] Handling include tag...", __FUNCTION__);
+        parse_result = _processIncludeTag(data, curr_pos, end_pos, node_list);
+        break;
+      case DocNode::TYPE_COMMENT:
+      case DocNode::TYPE_REMOVE:
+        _debugLog(_debug_tag, "[%s] Adding node [%s]", __FUNCTION__,
+            DocNode::type_names_[node_info->type]);
+        node_list.push_back(DocNode(node_info->type)); // no data required
+        parse_result = true;
+        break;
+      case DocNode::TYPE_WHEN:
+        _debugLog(_debug_tag, "[%s] Handling when tag...", __FUNCTION__);
+        parse_result = _processWhenTag(data, curr_pos, end_pos, node_list);
+        break;
+      case DocNode::TYPE_TRY:
+        _debugLog(_debug_tag, "[%s] Handling try tag...", __FUNCTION__);
+        parse_result = _processTryTag(data, curr_pos, end_pos, node_list);
+        break;
+      case DocNode::TYPE_CHOOSE:
+        _debugLog(_debug_tag, "[%s] Handling choose tag...", __FUNCTION__);
+        parse_result = _processChooseTag(data, curr_pos, end_pos, node_list);
+        break;
+      case DocNode::TYPE_OTHERWISE:
+      case DocNode::TYPE_ATTEMPT:
+      case DocNode::TYPE_EXCEPT:
+        _debugLog(_debug_tag, "[%s] Handling %s tag...", __FUNCTION__,
+            DocNode::type_names_[node_info->type]);
+        parse_result = _processSimpleContentTag(node_info->type, data.data() + curr_pos,
+            end_pos - curr_pos, node_list);
+        break;
+      case DocNode::TYPE_VARS:
+      case DocNode::TYPE_HTML_COMMENT:
+        _debugLog(_debug_tag, "[%s] added string of size %d starting with [%.5s] for node %s",
+            __FUNCTION__, end_pos - curr_pos, data.data() + curr_pos,
+            DocNode::type_names_[node_info->type]);
+        node_list.push_back(DocNode(node_info->type, data.data() + curr_pos, end_pos - curr_pos));
+        parse_result = true;
+        break;
+      case DocNode::TYPE_SPECIAL_INCLUDE:
+        _debugLog(_debug_tag, "[%s] Handling special include tag...", __FUNCTION__);
+        parse_result = _processSpecialIncludeTag(data, curr_pos, end_pos, node_list);
+        break;
+      default:
+        parse_result = false;
+        break;
+    }
+
+    if (!parse_result) {
+      _errorLog("[%s] Cannot handle ESI tag [%.*s]", __FUNCTION__, 
+                node_info->tag_suffix_len, node_info->tag_suffix);
+      goto lFail;
+    }
+
+    parse_start_pos = end_pos + node_info->closing_tag_len;
+    continue;
+
+  lPartialMatch:
+    if (last_chunk) {
+      _debugLog(_debug_tag, "[%s] Found a partial ESI tag - will be treated as PRE text", __FUNCTION__);
+    } else {
+      _debugLog(_debug_tag, "[%s] Deferring to next chunk to find complete tag", __FUNCTION__);
+    }
+    break;
+  }
+  if (last_chunk && (parse_start_pos < static_cast<int>(data_size))) {
+    _debugLog(_debug_tag, "[%s] Adding trailing text of size %d starting at [%.5s] as a PRE node", 
+              __FUNCTION__, data_size - parse_start_pos, data_start_ptr + parse_start_pos);
+    node_list.push_back(DocNode(DocNode::TYPE_PRE, 
+                                data_start_ptr + parse_start_pos, data_size - parse_start_pos));
+  }
+  _debugLog(_debug_tag, "[%s] Added %d node(s) during parse", __FUNCTION__, node_list.size() - orig_list_size);
+  return true;
+
+lFail:
+  node_list.resize(orig_list_size);   // delete whatever nodes we have added so far
+  return false;
+}
+
+bool
+EsiParser::_processIncludeTag(const string &data, size_t curr_pos, size_t end_pos,
+                              DocNodeList &node_list) const {
+  Attribute src_info;
+  if (!Utils::getAttribute(data, SRC_ATTR_STR, curr_pos, end_pos, src_info)) {
+    _errorLog("[%s] Could not find src attribute", __FUNCTION__);
+    return false;
+  }
+  node_list.push_back(DocNode(DocNode::TYPE_INCLUDE));
+  node_list.back().attr_list.push_back(src_info);
+  _debugLog(_debug_tag, "[%s] Added include tag with url [%.*s]",
+            __FUNCTION__, src_info.value_len, src_info.value);
+  return true;
+}
+
+bool
+EsiParser::_processSpecialIncludeTag(const string &data, size_t curr_pos, size_t end_pos,
+                                     DocNodeList &node_list) const {
+  Attribute handler_info;
+  if (!Utils::getAttribute(data, HANDLER_ATTR_STR, curr_pos, end_pos, handler_info)) {
+    _errorLog("[%s] Could not find handler attribute", __FUNCTION__);
+    return false;
+  }
+  node_list.push_back(DocNode(DocNode::TYPE_SPECIAL_INCLUDE));
+  DocNode &node = node_list.back();
+  node.attr_list.push_back(handler_info);
+  node.data = data.data() + curr_pos;
+  node.data_len = end_pos - curr_pos;
+  _debugLog(_debug_tag, "[%s] Added special include tag with handler [%.*s] and data [%.*s]",
+            __FUNCTION__, handler_info.value_len, handler_info.value, node.data_len, node.data);
+  return true;
+}
+
+inline bool
+EsiParser::_isWhitespace(const char *data, int data_len) const {
+  for (int i = 0; i < data_len; ++i) {
+    if (!isspace(data[i])) {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool
+EsiParser::_processWhenTag(const string &data, size_t curr_pos, size_t end_pos,
+                           DocNodeList &node_list) const {
+  Attribute test_expr;
+  size_t term_pos;
+  if (!Utils::getAttribute(data, TEST_ATTR_STR, curr_pos, end_pos, test_expr, &term_pos, '>')) {
+    _errorLog("[%s] Could not find test attribute", __FUNCTION__);
+    return false;
+  }
+  ++term_pos; // go past the terminator
+  const char *data_start_ptr = data.data() + term_pos;
+  int data_size = end_pos - term_pos;
+  if (!_processSimpleContentTag(DocNode::TYPE_WHEN, data_start_ptr, data_size, node_list)) {
+    _errorLog("[%s] Could not parse when node's content", __FUNCTION__);
+    return false;
+  }
+  node_list.back().attr_list.push_back(test_expr);
+  _debugLog(_debug_tag, "[%s] Added when tag with expression [%.*s] and data starting with [%.5s]",
+            __FUNCTION__, test_expr.value_len, test_expr.value, data_start_ptr);
+  return true;
+}
+
+bool
+EsiParser::_processTryTag(const string &data, size_t curr_pos, size_t end_pos,
+                          DocNodeList &node_list) const {
+  const char *data_start_ptr = data.data() + curr_pos;
+  int data_size = end_pos - curr_pos;
+  DocNode try_node(DocNode::TYPE_TRY);
+  if (!parse(try_node.child_nodes, data_start_ptr, data_size)) {
+    _errorLog("[%s] Could not parse try node's content", __FUNCTION__);
+    return false;
+  }
+
+  DocNodeList::iterator iter, end_node, attempt_node, except_node, temp_iter;
+  end_node = try_node.child_nodes.end();
+  attempt_node = except_node = end_node;
+  iter = try_node.child_nodes.begin();
+  while (iter != end_node) {
+    if (iter->type == DocNode::TYPE_ATTEMPT) {
+      if (attempt_node != end_node) {
+        _errorLog("[%s] Can have exactly one attempt node in try block", __FUNCTION__);
+        return false;
+      }
+      attempt_node = iter;
+    } else if (iter->type == DocNode::TYPE_EXCEPT) {
+      if (except_node != end_node) {
+        _errorLog("[%s] Can have exactly one except node in try block", __FUNCTION__);
+        return false;
+      }
+      except_node = iter;
+    } else if (iter->type == DocNode::TYPE_PRE) {
+      if (!_isWhitespace(iter->data, iter->data_len)) {
+        _errorLog("[%s] Cannot have non-whitespace raw text as top level node in try block", __FUNCTION__);
+        return false;
+      }
+      _debugLog(_debug_tag, "[%s] Ignoring top-level whitespace raw text", __FUNCTION__); 
+      temp_iter = iter;
+      ++temp_iter;
+      try_node.child_nodes.erase(iter);
+      iter = temp_iter;
+      continue; // skip the increment
+    } else {
+      _errorLog("[%s] Only attempt/except/text nodes allowed in try block; [%s] node invalid",
+                __FUNCTION__, DocNode::type_names_[iter->type]);
+      return false;
+    }
+    ++iter;
+  }
+  if ((attempt_node == end_node) || (except_node == end_node)) {
+    _errorLog("[%s] try block must contain one each of attempt and except nodes", __FUNCTION__);
+    return false;
+  }
+  node_list.push_back(try_node);
+  _debugLog(_debug_tag, "[%s] Added try node successfully", __FUNCTION__);
+  return true;
+}
+
+bool
+EsiParser::_processChooseTag(const string &data, size_t curr_pos, size_t end_pos,
+                             DocNodeList &node_list) const {
+  const char *data_start_ptr = data.data() + curr_pos;
+  size_t data_size = end_pos - curr_pos;
+  DocNode choose_node(DocNode::TYPE_CHOOSE);
+  if (!parse(choose_node.child_nodes, data_start_ptr, data_size)) {
+    _errorLog("[%s] Couldn't parse choose node content", __FUNCTION__);
+    return false;
+  }
+  DocNodeList::iterator end_node = choose_node.child_nodes.end();
+  DocNodeList::iterator otherwise_node = end_node, iter, temp_iter;
+  iter = choose_node.child_nodes.begin();
+  while (iter != end_node) {
+    if (iter->type == DocNode::TYPE_OTHERWISE) {
+      if (otherwise_node != end_node) {
+        _errorLog("[%s] Cannot have more than one esi:otherwise node in an esi:choose node", __FUNCTION__);
+        return false;
+      }
+      otherwise_node = iter;
+    } else if (iter->type == DocNode::TYPE_PRE) {
+      if (!_isWhitespace(iter->data, iter->data_len)) {
+        _errorLog("[%s] Cannot have non-whitespace raw text as top-level node in choose data",
+                  __FUNCTION__, DocNode::type_names_[iter->type]);
+        return false;
+      }
+      _debugLog(_debug_tag, "[%s] Ignoring top-level whitespace raw text", __FUNCTION__); 
+      temp_iter = iter;
+      ++temp_iter;
+      choose_node.child_nodes.erase(iter);
+      iter = temp_iter;
+      continue; // skip the increment
+    } else if (iter->type != DocNode::TYPE_WHEN) {
+      _errorLog("[%s] Cannot have %s as top-level node in choose data; only when/otherwise/whitespace-text "
+                "permitted", __FUNCTION__, DocNode::type_names_[iter->type]);
+      return false;
+    }
+    ++iter;
+  }
+  node_list.push_back(choose_node);
+  return true;
+}
+
+void
+EsiParser::clear() {
+  _data.clear();
+  _parse_start_pos = -1;
+}
+
+EsiParser::~EsiParser() {
+}
+
+inline void
+EsiParser::_adjustPointers(DocNodeList::iterator node_iter, DocNodeList::iterator end,
+                           const char *ext_data_ptr, const char *int_data_start) const {
+  AttributeList::iterator attr_iter;
+  for (; node_iter != end; ++node_iter) {
+    if (node_iter->data_len) {
+      node_iter->data = ext_data_ptr + (node_iter->data - int_data_start);
+    }
+    for (attr_iter = node_iter->attr_list.begin(); attr_iter != node_iter->attr_list.end(); ++attr_iter) {
+      if (attr_iter->name_len) {
+        attr_iter->name = ext_data_ptr + (attr_iter->name - int_data_start);
+      }
+      if (attr_iter->value_len) {
+        attr_iter->value = ext_data_ptr + (attr_iter->value - int_data_start);
+      }
+    }
+    if (node_iter->child_nodes.size()) {
+      _adjustPointers(node_iter->child_nodes.begin(), node_iter->child_nodes.end(),
+                      ext_data_ptr, int_data_start);
+    }
+  }
+}
+
+bool
+EsiParser::parse(DocNodeList &node_list, const char *ext_data_ptr, int data_len /* = -1 */) const {
+  string data;
+  size_t orig_output_list_size;
+  int parse_start_pos = -1;
+  bool retval = _completeParse(data, parse_start_pos, orig_output_list_size, node_list, ext_data_ptr, data_len);
+  if (retval && (node_list.size() - orig_output_list_size)) {
+    // adjust all pointers to addresses in input parameter
+    const char *int_data_start = data.data();
+    DocNodeList::iterator node_iter = node_list.begin();
+    for (size_t i = 0; i < orig_output_list_size; ++i, ++node_iter);
+    _adjustPointers(node_iter, node_list.end(), ext_data_ptr, int_data_start);
+  }
+  return retval;
+}
diff --git a/plugins/experimental/esi/lib/EsiParser.h b/plugins/experimental/esi/lib/EsiParser.h
new file mode 100644
index 00000000..2dffc59f
--- /dev/null
+++ b/plugins/experimental/esi/lib/EsiParser.h
@@ -0,0 +1,152 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_PARSER_H
+#define _ESI_PARSER_H
+
+#include <string>
+
+#include "lib/ComponentBase.h"
+#include "lib/DocNode.h"
+
+class EsiParser : private EsiLib::ComponentBase
+{
+
+public:
+
+  EsiParser(const char *debug_tag, EsiLib::ComponentBase::Debug debug_func,
+            EsiLib::ComponentBase::Error error_func);
+
+  /** clears state */
+  void clear();
+
+  /** parses a chunk of the document; adds complete nodes found;
+   * data is assumed to be NULL-terminated is data_len is set to -1.
+   *
+   * Output nodes contain pointers to internal data; use with care */
+  bool parseChunk(const char *data, EsiLib::DocNodeList &node_list, int data_len = -1);
+
+  /** convenient alternative to method above */
+  bool parseChunk(const std::string &data, EsiLib::DocNodeList &node_list) {
+    return parseChunk(data.data(), node_list, data.size());
+  };
+
+  /** completes the parse including data from previous chunk(s);
+   * adds newly found nodes to list. optionally a final or the 
+   * only chunk can be provided.
+   *
+   * Output nodes contain pointers to internal data; use with care. */
+  bool completeParse(EsiLib::DocNodeList &node_list, const char *data = 0, int data_len = -1) {
+    return _completeParse(_data, _parse_start_pos, _orig_output_list_size, node_list, data, data_len);
+  }
+  
+  /** convenient alternative to method above */
+  bool completeParse(EsiLib::DocNodeList &node_list, const std::string &data) {
+    return completeParse(node_list, data.data(), data.size());
+  }
+
+  /** stateless method that parses data and returns output nodes that
+   * point to addresses in caller space */
+  bool parse(EsiLib::DocNodeList &node_list, const char *ext_data_ptr, int data_len = -1) const;
+
+  /** convenient alternative to method above */
+  bool parse(EsiLib::DocNodeList &node_list, const std::string &ext_data) const {
+    return parse(node_list, ext_data.data(), ext_data.size());
+  }
+
+  virtual ~EsiParser();
+
+private:
+
+  struct EsiNodeInfo 
+  {
+    EsiLib::DocNode::TYPE type;
+    const char *tag_suffix;
+    int tag_suffix_len;
+    const char *closing_tag;
+    int closing_tag_len; 
+    EsiNodeInfo(EsiLib::DocNode::TYPE t, const char *s, int s_len, const char *ct, int ct_len)
+      : type(t), tag_suffix(s), tag_suffix_len(s_len), closing_tag(ct), closing_tag_len(ct_len) { };
+  };
+  
+  std::string _data;
+  int _parse_start_pos;
+  size_t _orig_output_list_size;
+
+  static const EsiNodeInfo ESI_NODES[];
+  static const EsiNodeInfo HTML_COMMENT_NODE_INFO;
+  
+  static const char *ESI_TAG_PREFIX;
+  static const int ESI_TAG_PREFIX_LEN;
+
+  static const std::string SRC_ATTR_STR;
+  static const std::string TEST_ATTR_STR;
+  static const std::string HANDLER_ATTR_STR;
+
+  static const unsigned int MAX_DOC_SIZE;
+
+  enum MATCH_TYPE { NO_MATCH, COMPLETE_MATCH, PARTIAL_MATCH };
+  
+  MATCH_TYPE _searchData(const std::string &data, size_t start_pos, const char *str, int str_len,
+                         size_t &pos) const;
+
+  MATCH_TYPE _compareData(const std::string &data, size_t pos, const char *str, int str_len) const;
+  
+  MATCH_TYPE _findOpeningTag(const std::string &data, size_t start_pos,
+                             size_t &opening_tag_pos, bool &is_html_comment_node) const;
+
+  bool _parse(const std::string &data, int &parse_start_pos, EsiLib::DocNodeList &node_list,
+              bool last_chunk = false) const;
+  
+  bool _processIncludeTag(const std::string &data, size_t curr_pos, size_t end_pos,
+                          EsiLib::DocNodeList &node_list) const;
+
+  bool _processSpecialIncludeTag(const std::string &data, size_t curr_pos, size_t end_pos,
+                                 EsiLib::DocNodeList &node_list) const;
+
+  inline bool _isWhitespace(const char *data, int data_len) const;
+
+  bool _processWhenTag(const std::string &data, size_t curr_pos, size_t end_pos,
+                       EsiLib::DocNodeList &node_list) const;
+
+  bool _processChooseTag(const std::string &data, size_t curr_pos, size_t end_pos,
+                         EsiLib::DocNodeList &node_list) const;
+
+  bool _processTryTag(const std::string &data, size_t curr_pos, size_t end_pos,
+                      EsiLib::DocNodeList &node_list) const;
+
+  inline bool _processSimpleContentTag(EsiLib::DocNode::TYPE node_type, const char *data, int data_len,
+                                       EsiLib::DocNodeList &node_list) const;
+
+  bool _setup(std::string &data, int &parse_start_pos, size_t &orig_output_list_size,
+              EsiLib::DocNodeList &node_list, const char *data_ptr, int &data_len) const;
+
+  bool _completeParse(std::string &data, int &parse_start_pos, size_t &orig_output_list_size,
+                      EsiLib::DocNodeList &node_list, const char *data_ptr = 0, int data_len = -1) const;
+
+  inline void _adjustPointers(EsiLib::DocNodeList::iterator node_iter, EsiLib::DocNodeList::iterator end,
+                              const char *ext_data_ptr, const char *int_data_start) const;
+
+};
+
+#endif // _ESI_PARSER_H
diff --git a/plugins/experimental/esi/lib/EsiProcessor.cc b/plugins/experimental/esi/lib/EsiProcessor.cc
new file mode 100644
index 00000000..77f13b08
--- /dev/null
+++ b/plugins/experimental/esi/lib/EsiProcessor.cc
@@ -0,0 +1,853 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "EsiProcessor.h"
+#include "Stats.h"
+#include "FailureInfo.h"
+#include <ctype.h>
+
+using std::string;
+using namespace EsiLib;
+extern pthread_key_t threadKey;
+// this needs to be a fixed address as only the address is used for comparision
+const char *EsiProcessor::INCLUDE_DATA_ID_ATTR = reinterpret_cast<const char *>(0xbeadface);
+
+#define FAILURE_INFO_TAG "plugin_esi_failureInfo"
+
+
+EsiProcessor::EsiProcessor(const char *debug_tag, const char *parser_debug_tag,
+                           const char *expression_debug_tag,
+                           ComponentBase::Debug debug_func, ComponentBase::Error error_func,
+                           HttpDataFetcher &fetcher, Variables &variables,
+                           const HandlerManager &handler_mgr)
+  : ComponentBase(debug_tag, debug_func, error_func),
+    _curr_state(STOPPED),
+    _parser(parser_debug_tag, debug_func, error_func),
+    _n_prescanned_nodes(0),
+    _n_processed_nodes(0),
+    _n_processed_try_nodes(0),
+    _overall_len(0),
+    _fetcher(fetcher),
+    _reqAdded(false),
+    _usePackedNodeList(false),
+    _esi_vars(variables),
+    _expression(expression_debug_tag, debug_func, error_func, _esi_vars), _n_try_blocks_processed(0),
+    _handler_manager(handler_mgr) {
+}
+
+bool
+EsiProcessor::start() {
+  if (_curr_state != STOPPED) {
+    _debugLog(_debug_tag, "[%s] Implicit call to stop()", __FUNCTION__);
+    stop();
+  }
+  _curr_state = PARSING;
+  _usePackedNodeList = false;
+  return true;
+}
+
+bool
+EsiProcessor::addParseData(const char *data, int data_len) {
+  if (_curr_state == ERRORED) {
+    return false;
+  }
+  if (_curr_state == STOPPED) {
+    _debugLog(_debug_tag, "[%s] Implicit call to start()", __FUNCTION__);
+    start();
+  } else if (_curr_state != PARSING) {
+    _debugLog(_debug_tag, "[%s] Can only parse in parse stage", __FUNCTION__);
+    return false;
+  }
+  
+  if (!_parser.parseChunk(data, _node_list, data_len)) {
+    _errorLog("[%s] Failed to parse chunk; Stopping processor...", __FUNCTION__);
+    error();
+    Stats::increment(Stats::N_PARSE_ERRS);
+    return false;
+  }
+  if (!_preprocess(_node_list, _n_prescanned_nodes)) {
+    _errorLog("[%s] Failed to preprocess parsed nodes; Stopping processor...", __FUNCTION__);
+    error();
+    return false;
+  }
+  return true;
+}
+
+bool
+EsiProcessor::completeParse(const char *data /* = 0 */, int data_len /* = -1 */) {
+  if (_curr_state == ERRORED) {
+    return false;
+  }
+  if (_curr_state == STOPPED) {
+    _debugLog(_debug_tag, "[%s] Implicit call to start()", __FUNCTION__);
+    start();
+  } else if (_curr_state != PARSING) {
+    _debugLog(_debug_tag, "[%s] Can only parse in parse stage", __FUNCTION__);
+    return false;
+  }
+
+  if (!_parser.completeParse(_node_list, data, data_len)) {
+    _errorLog("[%s] Couldn't parse ESI document", __FUNCTION__);
+    error();
+    Stats::increment(Stats::N_PARSE_ERRS);
+    return false;
+  }
+  return _handleParseComplete();
+}
+
+EsiProcessor::UsePackedNodeResult
+EsiProcessor::usePackedNodeList(const char *data, int data_len) {
+  if (_curr_state != STOPPED) {
+    _errorLog("[%s] Cannot use packed node list whilst processing other data", __FUNCTION__);
+    return PROCESS_IN_PROGRESS;
+  }
+  start();
+  if (!_node_list.unpack(data, data_len)) {
+    _errorLog("[%s] Could not unpack node list from provided data!", __FUNCTION__);
+    error();
+    return UNPACK_FAILURE;
+  }
+  _usePackedNodeList = true;
+  return _handleParseComplete() ? PROCESS_SUCCESS : PROCESS_FAILURE;
+}
+
+bool
+EsiProcessor::_handleParseComplete() {
+  if (_curr_state != PARSING) {
+    _debugLog(_debug_tag, "[%s] Cannot handle parse complete in state %d", __FUNCTION__, _curr_state);
+    return false;
+  }
+  if (!_preprocess(_node_list, _n_prescanned_nodes)) {
+    _errorLog("[%s] Failed to preprocess parsed nodes; Stopping processor...", __FUNCTION__);
+    error();
+    return false;
+  }
+  for (IncludeHandlerMap::iterator map_iter = _include_handlers.begin();
+       map_iter != _include_handlers.end(); ++map_iter) {
+    map_iter->second->handleParseComplete();
+  }
+
+  _debugLog(_debug_tag, "[%s] Parsed ESI document with %d nodes", __FUNCTION__, _node_list.size());
+  _curr_state = WAITING_TO_PROCESS;
+  
+  return true;
+}
+
+DataStatus
+EsiProcessor::_getIncludeStatus(const DocNode &node) {
+  _debugLog(_debug_tag, "[%s] inside getIncludeStatus", __FUNCTION__);
+  if (node.type == DocNode::TYPE_INCLUDE) {
+    const Attribute &url = node.attr_list.front();
+
+    if(url.value_len == 0) { //allow empty url
+      return STATUS_DATA_AVAILABLE;
+    }
+
+    string raw_url(url.value, url.value_len);
+    StringHash::iterator iter = _include_urls.find(raw_url);
+    if (iter == _include_urls.end()) {
+      _errorLog("[%s] Data not requested for URL [%.*s]; no data to include",
+                __FUNCTION__, url.value_len, url.value);
+      return STATUS_ERROR;
+    }
+    const string &processed_url = iter->second;
+    DataStatus status = _fetcher.getRequestStatus(processed_url);
+    _debugLog(_debug_tag, "[%s] Got status %d successfully for URL [%.*s]", __FUNCTION__, status, 
+              processed_url.size(), processed_url.data());
+    return status;
+  } else if (node.type == DocNode::TYPE_SPECIAL_INCLUDE) {
+    AttributeList::const_iterator attr_iter;
+    for (attr_iter = node.attr_list.begin(); attr_iter != node.attr_list.end(); ++attr_iter) {
+      if (attr_iter->name == INCLUDE_DATA_ID_ATTR) {
+        break;
+      }
+    }
+    int include_data_id = attr_iter->value_len;
+    SpecialIncludeHandler *handler = 
+      reinterpret_cast<SpecialIncludeHandler *>(const_cast<char *>(attr_iter->value));
+    DataStatus status = handler->getIncludeStatus(include_data_id);
+    _debugLog(_debug_tag, "[%s] Successfully got status for special include with id %d",
+              __FUNCTION__, status, include_data_id);
+
+    return status;
+  }
+  _debugLog(_debug_tag, "[%s] node of type %s",
+            __FUNCTION__, DocNode::type_names_[node.type]);
+  return STATUS_DATA_AVAILABLE;
+}
+
+bool
+EsiProcessor::_getIncludeData(const DocNode &node, const char **content_ptr /* = 0 */,
+                              int *content_len_ptr /* = 0 */) {
+  if (node.type == DocNode::TYPE_INCLUDE) {
+    const Attribute &url = node.attr_list.front();
+
+    if (url.value_len == 0) {  //allow empty url
+      if (content_ptr && content_len_ptr) {
+        *content_ptr = NULL;
+        *content_len_ptr = 0;
+        return true;
+      }
+      else {
+        return false;
+      }
+    }
+
+    string raw_url(url.value, url.value_len);
+    StringHash::iterator iter = _include_urls.find(raw_url);
+    if (iter == _include_urls.end()) {
+      _errorLog("[%s] Data not requested for URL [%.*s]; no data to include",
+                __FUNCTION__, url.value_len, url.value);
+      return false;
+    }
+    const string &processed_url = iter->second;
+    bool result;
+    if (content_ptr && content_len_ptr) {
+      result = _fetcher.getContent(processed_url, *content_ptr, *content_len_ptr);
+    } else {
+      result = (_fetcher.getRequestStatus(processed_url) == STATUS_DATA_AVAILABLE);
+    }
+    if (!result) {
+      _errorLog("[%s] Couldn't get content for URL [%.*s]", 
+                __FUNCTION__, processed_url.size(), processed_url.data());
+      Stats::increment(Stats::N_INCLUDE_ERRS);
+      return false;
+    }
+    _debugLog(_debug_tag, "[%s] Got content successfully for URL [%.*s]", __FUNCTION__, 
+              processed_url.size(), processed_url.data());
+    return true;
+  } else if (node.type == DocNode::TYPE_SPECIAL_INCLUDE) {
+    AttributeList::const_iterator attr_iter;
+    for (attr_iter = node.attr_list.begin(); attr_iter != node.attr_list.end(); ++attr_iter) {
+      if (attr_iter->name == INCLUDE_DATA_ID_ATTR) {
+        break;
+      }
+    }
+    int include_data_id = attr_iter->value_len;
+    SpecialIncludeHandler *handler = 
+      reinterpret_cast<SpecialIncludeHandler *>(const_cast<char *>(attr_iter->value));
+    bool result;
+    if (content_ptr && content_len_ptr) {
+      result = handler->getData(include_data_id, *content_ptr, *content_len_ptr);
+    } else {
+      result = (handler->getIncludeStatus(include_data_id) == STATUS_DATA_AVAILABLE);
+    }
+    if (!result) {
+      _errorLog("[%s] Couldn't get content for special include with id %d", __FUNCTION__, include_data_id);
+      Stats::increment(Stats::N_SPCL_INCLUDE_ERRS);
+      return false;
+    }
+    _debugLog(_debug_tag, "[%s] Successfully got content for special include with id %d",
+              __FUNCTION__, include_data_id);
+    return true;
+  }
+  _errorLog("[%s] Cannot get include data for node of type %s",
+            __FUNCTION__, DocNode::type_names_[node.type]);
+  return false;
+}
+
+EsiProcessor::ReturnCode
+EsiProcessor::process(const char *&data, int &data_len) {
+
+  if (_curr_state == ERRORED) {
+    return FAILURE;
+  }
+  if (_curr_state != WAITING_TO_PROCESS) {
+    _errorLog("[%s] Processor has to finish parsing via completeParse() before process() call", __FUNCTION__);
+    return FAILURE;
+  }
+  DocNodeList::iterator node_iter,iter;
+  bool attempt_succeeded;
+  std::vector<std::string> attemptUrls;
+  TryBlockList::iterator try_iter = _try_blocks.begin();
+  for (int i = 0; i < _n_try_blocks_processed; ++i, ++try_iter);
+  for (; _n_try_blocks_processed < static_cast<int>(_try_blocks.size()); ++try_iter) {
+    ++_n_try_blocks_processed;
+    attempt_succeeded = true;
+    for (node_iter = try_iter->attempt_nodes.begin(); node_iter != try_iter->attempt_nodes.end(); ++node_iter) {
+      if ((node_iter->type == DocNode::TYPE_INCLUDE) ||
+          (node_iter->type == DocNode::TYPE_SPECIAL_INCLUDE)) {
+          const Attribute &url = (*node_iter).attr_list.front();              
+          string raw_url(url.value, url.value_len);
+          attemptUrls.push_back(_expression.expand(raw_url));
+        if (!_getIncludeData(*node_iter)) {
+          attempt_succeeded = false;
+          _errorLog("[%s] attempt section errored; due to url [%s]", __FUNCTION__, raw_url.c_str());
+          break;
+        }
+      }
+    }
+          
+    /* FAILURE CACHE */
+    FailureData* data=static_cast<FailureData*>(pthread_getspecific(threadKey));
+    _debugLog("plugin_esi_failureInfo","[%s]Fetched data related to thread specfic %p",__FUNCTION__,data);
+    
+    for (iter=try_iter->attempt_nodes.begin(); iter != try_iter->attempt_nodes.end(); ++iter) {
+      if ((iter->type == DocNode::TYPE_INCLUDE) || iter->type == DocNode::TYPE_SPECIAL_INCLUDE)
+      {
+          if(!attempt_succeeded && iter==node_iter)
+              continue;
+          const Attribute &url = (*iter).attr_list.front();              
+          string raw_url(url.value, url.value_len);
+          attemptUrls.push_back(_expression.expand(raw_url));
+      }
+    }
+   
+    if(attemptUrls.size()>0 && data)
+    { 
+        FailureData::iterator it =data->find(attemptUrls[0]);
+        FailureInfo* info;
+    
+        if(it == data->end())
+        {
+            _debugLog("plugin_esi_failureInfo","[%s]Inserting object for the attempt URLS",__FUNCTION__);
+            info=new FailureInfo(FAILURE_INFO_TAG,_debugLog,_errorLog);
+            for(int i=0;i<static_cast<int>(attemptUrls.size());i++)
+            {
+                _debugLog("plugin_esi_failureInfo", "[%s] Urls [%.*s]",__FUNCTION__,attemptUrls[i].size(),attemptUrls[i].data());
+                (*data)[attemptUrls[i]]=info;
+            }
+    
+            info->registerSuccFail(attempt_succeeded);
+
+        } else {
+            info=it->second;
+            //Should be registered only if attemp was made
+            //and it failed
+            if(_reqAdded)
+                info->registerSuccFail(attempt_succeeded);   
+    
+        }
+    }
+    if (attempt_succeeded) {
+      _debugLog(_debug_tag, "[%s] attempt section succeded; using attempt section", __FUNCTION__);
+      _node_list.splice(try_iter->pos, try_iter->attempt_nodes);
+    } else {
+      _debugLog(_debug_tag, "[%s] attempt section errored; trying except section", __FUNCTION__); 
+      int n_prescanned_nodes = 0;
+      if (!_preprocess(try_iter->except_nodes, n_prescanned_nodes)) {
+        _errorLog("[%s] Failed to preprocess except nodes", __FUNCTION__);
+        stop();
+        return FAILURE;
+      }
+      _node_list.splice(try_iter->pos, try_iter->except_nodes);
+      if (_fetcher.getNumPendingRequests()) { 
+        _debugLog(_debug_tag, "[%s] New fetch requests were triggered by except block; "
+                  "Returning NEED_MORE_DATA...", __FUNCTION__);
+        return NEED_MORE_DATA;
+      }
+    }
+  }
+  _curr_state = PROCESSED;
+  for (node_iter = _node_list.begin(); node_iter != _node_list.end(); ++node_iter) {
+    DocNode &doc_node = *node_iter; // handy reference
+    _debugLog(_debug_tag, "[%s] Processing ESI node [%s] with data of size %d starting with [%.10s...]",
+              __FUNCTION__, DocNode::type_names_[doc_node.type], doc_node.data_len,
+              (doc_node.data_len ? doc_node.data : "(null)"));
+    if (doc_node.type == DocNode::TYPE_PRE) {
+      // just copy the data
+      _output_data.append(doc_node.data, doc_node.data_len);
+    } else if (!_processEsiNode(node_iter)) {
+      _errorLog("[%s] Failed to process ESI node [%.*s]", __FUNCTION__, doc_node.data_len, doc_node.data);
+      stop();
+      return FAILURE;
+    }
+  }
+  _addFooterData();
+  data = _output_data.c_str();
+  data_len = _output_data.size();
+  _debugLog(_debug_tag, "[%s] ESI processed document of size %d starting with [%.10s]",
+            __FUNCTION__, data_len, (data_len ? data : "(null)"));
+  return SUCCESS;
+}
+
+EsiProcessor::ReturnCode
+EsiProcessor::flush(string &data, int &overall_len) {
+
+  if (_curr_state == ERRORED) {
+    return FAILURE;
+  }
+  if(_curr_state == PROCESSED) {
+    overall_len = _overall_len;
+    data.assign("");
+    return SUCCESS;
+  }
+  if (_curr_state != WAITING_TO_PROCESS) {
+    _errorLog("[%s] Processor has to finish parsing via completeParse() before process() call", __FUNCTION__);
+    return FAILURE;
+  }
+  DocNodeList::iterator node_iter,iter;
+  bool attempt_succeeded;
+  bool attempt_pending;
+  bool node_pending;
+  std::vector<std::string> attemptUrls;
+  _output_data.clear();
+  TryBlockList::iterator try_iter = _try_blocks.begin();
+  for (int i = 0; i < _n_try_blocks_processed; ++i, ++try_iter);
+  for (; _n_try_blocks_processed < static_cast<int>(_try_blocks.size()); ++try_iter) {
+    attempt_pending=false;
+    for(node_iter=try_iter->attempt_nodes.begin(); node_iter!=try_iter->attempt_nodes.end(); ++node_iter) {
+      if((node_iter->type == DocNode::TYPE_INCLUDE) ||
+         (node_iter->type == DocNode::TYPE_SPECIAL_INCLUDE)) {
+        if(_getIncludeStatus(*node_iter) == STATUS_DATA_PENDING) {
+          attempt_pending = true;
+          break;
+        }
+      }
+    }
+    if(attempt_pending) {
+      break;
+    }
+  
+    ++_n_try_blocks_processed;
+    attempt_succeeded = true;
+    for (node_iter = try_iter->attempt_nodes.begin(); node_iter != try_iter->attempt_nodes.end(); ++node_iter) {
+      if ((node_iter->type == DocNode::TYPE_INCLUDE) ||
+          (node_iter->type == DocNode::TYPE_SPECIAL_INCLUDE)) {
+          const Attribute &url = (*node_iter).attr_list.front();              
+          string raw_url(url.value, url.value_len);
+          attemptUrls.push_back(_expression.expand(raw_url));
+        if (_getIncludeStatus(*node_iter) != STATUS_DATA_AVAILABLE) {
+          attempt_succeeded = false;
+          _errorLog("[%s] attempt section errored; due to url [%s]", __FUNCTION__, raw_url.c_str());
+          break;
+        }
+      }
+    }
+          
+    /* FAILURE CACHE */
+    FailureData* fdata=static_cast<FailureData*>(pthread_getspecific(threadKey));
+    _debugLog("plugin_esi_failureInfo","[%s]Fetched data related to thread specfic %p",__FUNCTION__,fdata);
+    
+    for (iter=try_iter->attempt_nodes.begin(); iter != try_iter->attempt_nodes.end(); ++iter) {
+      if ((iter->type == DocNode::TYPE_INCLUDE) || iter->type == DocNode::TYPE_SPECIAL_INCLUDE)
+      {
+          if(!attempt_succeeded && iter==node_iter)
+              continue;
+          const Attribute &url = (*iter).attr_list.front();              
+          string raw_url(url.value, url.value_len);
+          attemptUrls.push_back(_expression.expand(raw_url));
+      }
+    }
+   
+    if(attemptUrls.size()>0 && fdata)
+    { 
+        FailureData::iterator it =fdata->find(attemptUrls[0]);
+        FailureInfo* info;
+    
+        if(it == fdata->end())
+        {
+            _debugLog("plugin_esi_failureInfo","[%s]Inserting object for the attempt URLS",__FUNCTION__);
+            info=new FailureInfo(FAILURE_INFO_TAG,_debugLog,_errorLog);
+            for(int i=0;i<static_cast<int>(attemptUrls.size());i++)
+            {
+                _debugLog("plugin_esi_failureInfo", "[%s] Urls [%.*s]",__FUNCTION__,attemptUrls[i].size(),attemptUrls[i].data());
+                (*fdata)[attemptUrls[i]]=info;
+            }
+    
+            info->registerSuccFail(attempt_succeeded);
+
+        } else {
+            info=it->second;
+            //Should be registered only if attemp was made
+            //and it failed
+            if(_reqAdded)
+                info->registerSuccFail(attempt_succeeded);   
+    
+        }
+    }
+    if (attempt_succeeded) {
+      _debugLog(_debug_tag, "[%s] attempt section succeded; using attempt section", __FUNCTION__);
+      _node_list.splice(try_iter->pos, try_iter->attempt_nodes);
+    } else {
+      _debugLog(_debug_tag, "[%s] attempt section errored; trying except section", __FUNCTION__); 
+      int n_prescanned_nodes = 0;
+      if (!_preprocess(try_iter->except_nodes, n_prescanned_nodes)) {
+        _errorLog("[%s] Failed to preprocess except nodes", __FUNCTION__);
+      }
+      _node_list.splice(try_iter->pos, try_iter->except_nodes);
+      if (_fetcher.getNumPendingRequests()) { 
+        _debugLog(_debug_tag, "[%s] New fetch requests were triggered by except block; "
+                  "Returning NEED_MORE_DATA...", __FUNCTION__);
+      }
+    }
+  }
+
+  node_pending = false;
+  node_iter=_node_list.begin();
+  for(int i = 0;i< _n_processed_nodes;++i,++node_iter);
+  for(;node_iter!= _node_list.end(); ++node_iter) {
+    DocNode &doc_node = *node_iter; // handy reference
+    _debugLog(_debug_tag, "[%s] Processing ESI node [%s] with data of size %d starting with [%.10s...]",
+              __FUNCTION__, DocNode::type_names_[doc_node.type], doc_node.data_len,
+              (doc_node.data_len ? doc_node.data : "(null)"));
+
+    if(_getIncludeStatus(doc_node) == STATUS_DATA_PENDING) {
+      node_pending = true;
+      break;
+    }
+
+    _debugLog(_debug_tag, "[%s] processed node: %d, try blocks processed: %d, processed try nodes: %d", __FUNCTION__, _n_processed_nodes, _n_try_blocks_processed, _n_processed_try_nodes);
+    if(doc_node.type == DocNode::TYPE_TRY) {
+      if(_n_try_blocks_processed <= _n_processed_try_nodes) {
+        node_pending = true;
+        break;
+      } else {
+        ++_n_processed_try_nodes;
+      }
+    }
+   
+    _debugLog(_debug_tag, "[%s] really Processing ESI node [%s] with data of size %d starting with [%.10s...]", __FUNCTION__, DocNode::type_names_[doc_node.type], doc_node.data_len, (doc_node.data_len ? doc_node.data: "(null)"));
+
+    if (doc_node.type == DocNode::TYPE_PRE) {
+      // just copy the data
+      _output_data.append(doc_node.data, doc_node.data_len);
+      ++_n_processed_nodes;
+    } else if (!_processEsiNode(node_iter)) {
+      _errorLog("[%s] Failed to process ESI node [%.*s]", __FUNCTION__, doc_node.data_len, doc_node.data);
+      ++_n_processed_nodes;
+    } else {
+      ++_n_processed_nodes;
+    }
+  }
+
+  if(!node_pending) {
+    _curr_state = PROCESSED;
+    _addFooterData();
+  }
+  data.assign(_output_data);
+  _overall_len = _overall_len + data.size();
+  overall_len = _overall_len;
+
+  _debugLog(_debug_tag, "[%s] ESI processed document of size %d starting with [%.10s]",
+            __FUNCTION__, data.size(), (data.size() ? data.data() : "(null)"));
+  return SUCCESS;
+}
+
+void
+EsiProcessor::stop() {
+  _output_data.clear();
+  _node_list.clear();
+  _include_urls.clear();
+  _try_blocks.clear();
+  _n_prescanned_nodes = 0;
+  _n_try_blocks_processed = 0;
+  _overall_len = 0;
+  for (IncludeHandlerMap::iterator map_iter = _include_handlers.begin();
+       map_iter != _include_handlers.end(); ++map_iter) {
+    delete map_iter->second;
+  }
+  _include_handlers.clear();
+  _curr_state = STOPPED;
+}
+
+EsiProcessor::~EsiProcessor() {
+  if (_curr_state != STOPPED) {
+    stop();
+  }
+}
+
+bool
+EsiProcessor::_processEsiNode(const DocNodeList::iterator &iter) {
+  bool retval;
+  const DocNode &node = *iter;
+  if ((node.type == DocNode::TYPE_INCLUDE) || (node.type == DocNode::TYPE_SPECIAL_INCLUDE)) {
+    const char *content;
+    int content_len;
+    if ((retval = _getIncludeData(node, &content, &content_len))) {
+      if (content_len > 0) {
+        _output_data.append(content, content_len);
+      }
+    }
+  } else if ((node.type == DocNode::TYPE_COMMENT) || (node.type == DocNode::TYPE_REMOVE) ||
+             (node.type == DocNode::TYPE_TRY) || (node.type == DocNode::TYPE_CHOOSE) ||
+             (node.type == DocNode::TYPE_HTML_COMMENT)) {
+    // choose, try and html-comment would've been dealt with earlier
+    _debugLog(_debug_tag, "[%s] No-op for [%s] node", __FUNCTION__, DocNode::type_names_[node.type]);
+    retval = true;
+  } else if (node.type == DocNode::TYPE_VARS) {
+    retval = _handleVars(node.data, node.data_len);
+  } else {
+    _errorLog("[%s] Unknown ESI Doc node type %d", __FUNCTION__, node.type);
+    retval = false;
+  }
+  if (retval) {
+    _debugLog(_debug_tag, "[%s] Processed ESI [%s] node", __FUNCTION__, DocNode::type_names_[node.type]);
+  } else {
+    _errorLog("[%s] Failed to process ESI doc node of type %d", __FUNCTION__, node.type);
+  }
+  return retval;
+}
+
+inline bool
+EsiProcessor::_isWhitespace(const char *data, int data_len) {
+  for (int i = 0; i < data_len; ++i) {
+    if (!isspace(data[i])) {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool
+EsiProcessor::_handleChoose(DocNodeList::iterator &curr_node) {
+  DocNodeList::iterator iter, otherwise_node, winning_node, end_node;
+  end_node = curr_node->child_nodes.end();
+  otherwise_node = end_node;
+  for (iter = curr_node->child_nodes.begin(); iter != end_node; ++iter) {
+    if (iter->type == DocNode::TYPE_OTHERWISE) {
+      otherwise_node = iter;
+      break;
+    }
+  }
+  winning_node = end_node;
+  for (iter = curr_node->child_nodes.begin(); iter != end_node; ++iter) {
+    if (iter->type == DocNode::TYPE_WHEN) {
+      const Attribute &test_expr = iter->attr_list.front();
+      if (_expression.evaluate(test_expr.value, test_expr.value_len)) {
+        winning_node = iter;
+        break;
+      }
+    }
+  }
+  if (winning_node == end_node) {
+    _debugLog(_debug_tag, "[%s] All when nodes failed to evaluate to true", __FUNCTION__);
+    if (otherwise_node != end_node) {
+      _debugLog(_debug_tag, "[%s] Using otherwise node...", __FUNCTION__);
+      winning_node = otherwise_node;
+    } else {
+      _debugLog(_debug_tag, "[%s] No otherwise node, nothing to do...", __FUNCTION__);
+      return true;
+    }
+  }
+  // splice() inserts elements *before* given position, but we need to
+  // insert new nodes after the choose node for them to be seen by
+  // preprocess(); hence...
+  DocNodeList::iterator next_node = curr_node;
+  ++next_node;
+  _node_list.splice(next_node, winning_node->child_nodes);
+  return true;
+}
+
+bool
+EsiProcessor::_handleTry(DocNodeList::iterator &curr_node) {
+  DocNodeList::iterator iter, end_node = curr_node->child_nodes.end();
+  DocNodeList::iterator attempt_node = end_node, except_node = end_node;
+  for (iter = curr_node->child_nodes.begin(); iter != end_node; ++iter) {
+    if (iter->type == DocNode::TYPE_ATTEMPT) {
+      attempt_node = iter;
+    } else if (iter->type == DocNode::TYPE_EXCEPT) {
+      except_node = iter;
+    }
+  }
+  TryBlock try_info(attempt_node->child_nodes, except_node->child_nodes, curr_node);
+  int n_prescanned_nodes = 0;
+  if (!_preprocess(try_info.attempt_nodes, n_prescanned_nodes)) {
+    _errorLog("[%s] Couldn't preprocess attempt node of try block", __FUNCTION__);
+    return false;
+  }
+  _try_blocks.push_back(try_info);
+  return true;
+}
+
+bool
+EsiProcessor::_handleVars(const char *str, int str_len) {
+  const string &str_value = _expression.expand(str, str_len);
+  _debugLog(_debug_tag, "[%s] Vars expression [%.*s] expanded to [%.*s]",
+            __FUNCTION__, str_len, str, str_value.size(), str_value.data());
+  _output_data.append(str_value);
+  return true;
+}
+
+bool
+EsiProcessor::_handleHtmlComment(const DocNodeList::iterator &curr_node) {
+  DocNodeList inner_nodes;
+  if (!_parser.parse(inner_nodes, curr_node->data, curr_node->data_len)) {
+    _errorLog("[%s] Couldn't parse html comment node content", __FUNCTION__);
+    Stats::increment(Stats::N_PARSE_ERRS);
+    return false;
+  }
+  _debugLog(_debug_tag, "[%s] parsed %d inner nodes from html comment node", __FUNCTION__, inner_nodes.size());
+  DocNodeList::iterator next_node = curr_node;
+  ++next_node;
+  _node_list.splice(next_node, inner_nodes); // insert after curr node for preprocessing
+  return true;
+}
+
+bool
+EsiProcessor::_preprocess(DocNodeList &node_list, int &n_prescanned_nodes) {
+  DocNodeList::iterator list_iter = node_list.begin();
+  StringHash::iterator hash_iter;
+  string raw_url;
+  
+  // skip previously examined nodes
+  for (int i = 0; i < n_prescanned_nodes; ++i, ++list_iter);
+  
+  for (; list_iter != node_list.end(); ++list_iter, ++n_prescanned_nodes) {
+    switch (list_iter->type) {
+      case DocNode::TYPE_CHOOSE:
+        if (!_handleChoose(list_iter)) {
+          _errorLog("[%s] Failed to preprocess choose node", __FUNCTION__);
+          return false;
+        }
+        _debugLog(_debug_tag, "[%s] handled choose node successfully", __FUNCTION__);
+        break;
+      case DocNode::TYPE_TRY:
+        if (!_handleTry(list_iter)) {
+          _errorLog("[%s] Failed to preprocess try node", __FUNCTION__);
+          return false;
+        }
+        _debugLog(_debug_tag, "[%s] handled try node successfully", __FUNCTION__);
+        break;
+      case DocNode::TYPE_HTML_COMMENT:
+        /**
+         * the html comment <!--esi innertext--> is a container.
+         * the esi processor will remove the starting tag "<!--esi" and the
+         * closure tag "-->", then keep the innertext (the content within it).
+         *
+         * we should call _handleHtmlComment when the node list is parsed
+         * from the content,
+         * but we should NOT call _handleHtmlComment again when the node list
+         * is unpacked from the cache because the node list has been parsed.
+         */
+        if (!_usePackedNodeList && !_handleHtmlComment(list_iter)) {
+          _errorLog("[%s] Failed to preprocess try node", __FUNCTION__);
+          return false;
+        }
+        break;
+      case DocNode::TYPE_INCLUDE:
+        {
+          Stats::increment(Stats::N_INCLUDES);
+          const Attribute &src = list_iter->attr_list.front();
+          raw_url.assign(src.value, src.value_len);
+          _debugLog(_debug_tag, "[%s] Adding fetch request for url [%.*s]",
+              __FUNCTION__, raw_url.size(), raw_url.data());
+          hash_iter = _include_urls.find(raw_url);
+          if (hash_iter != _include_urls.end()) { // we have already processed this URL
+            _debugLog(_debug_tag, "[%s] URL [%.*s] already processed",
+                __FUNCTION__, raw_url.size(), raw_url.data());
+            continue;
+          }
+          const string &expanded_url = _expression.expand(raw_url);
+          if (!expanded_url.size()) {
+            _errorLog("[%s] Couldn't expand raw URL [%.*s]", __FUNCTION__, raw_url.size(), raw_url.data());
+            Stats::increment(Stats::N_INCLUDE_ERRS);
+            continue;
+          }
+
+          bool fetch=true;
+          FailureData* threadData;
+          /* FAILURE CACHE */
+          if((threadData=static_cast<FailureData*>(pthread_getspecific(threadKey))) == NULL){
+            threadData=new FailureData();
+            if(pthread_setspecific(threadKey,threadData))
+            {
+              _errorLog("[%s] Unable to set the key", __FUNCTION__);
+              abort();
+            }
+            _debugLog("plugin_esi_failureInfo", "[%s] Data is set for this thread [threadData]%p [threadID]%u [%.*s]", __FUNCTION__,threadData,pthread_self(),expanded_url.size(),expanded_url.data());
+          }else {
+
+            _debugLog("plugin_esi_failureInfo", "[%s] URL request [%.*s] %u",
+                __FUNCTION__, expanded_url.size(), expanded_url.data(),pthread_self());
+
+            FailureData::iterator it =threadData->find(expanded_url);
+            FailureInfo* info;
+
+            if(it != threadData->end()) {
+              info=it->second; 
+              fetch=_reqAdded=info->isAttemptReq();
+              _debugLog(_debug_tag,"[%s] Fetch result is %d",__FUNCTION__,fetch);
+            }
+          }
+
+          if(fetch){
+            if (!_fetcher.addFetchRequest(expanded_url)) {
+              _errorLog("[%s] Couldn't add fetch request for URL [%.*s]",
+                  __FUNCTION__, raw_url.size(), raw_url.data());
+              Stats::increment(Stats::N_INCLUDE_ERRS);
+              continue;
+            }
+            _include_urls.insert(StringHash::value_type(raw_url, expanded_url));
+          }
+          else{
+            _debugLog("plugin_esi_failureInfo","[%s] Not adding fetch request for [%.*s]",__FUNCTION__,expanded_url.size(),expanded_url.data());
+            continue;
+          }
+          break;
+        }
+      case DocNode::TYPE_SPECIAL_INCLUDE:
+        {
+          Stats::increment(Stats::N_SPCL_INCLUDES);
+          const Attribute &handler_attr = list_iter->attr_list.front();
+          string handler_id(handler_attr.value, handler_attr.value_len);
+          SpecialIncludeHandler *handler;
+          IncludeHandlerMap::const_iterator map_iter = _include_handlers.find(handler_id);
+          if (map_iter == _include_handlers.end()) {
+            handler = _handler_manager.getHandler(_esi_vars, _expression, _fetcher, handler_id);
+            if (!handler) {
+              _errorLog("[%s] Couldn't create handler with id [%s]", __FUNCTION__, handler_id.c_str());
+              Stats::increment(Stats::N_SPCL_INCLUDE_ERRS);
+              return false;
+            }
+            _include_handlers.insert(IncludeHandlerMap::value_type(handler_id, handler));
+            _debugLog(_debug_tag, "[%s] Created new special include handler object for id [%s]",
+                __FUNCTION__, handler_id.c_str());
+          } else {
+            handler = map_iter->second;
+          }
+          int special_data_id = handler->handleInclude(list_iter->data, list_iter->data_len);
+          if (special_data_id == -1) {
+            _errorLog("[%s] Include handler [%s] couldn't process include with data [%.*s]",
+                __FUNCTION__, handler_id.c_str(), list_iter->data_len, list_iter->data);
+            Stats::increment(Stats::N_SPCL_INCLUDE_ERRS);
+            return false;
+          }
+          // overloading this structure's members
+          // handler will be in value and include id will be in value_len of the structure
+          list_iter->attr_list.push_back(Attribute(INCLUDE_DATA_ID_ATTR, 0,
+                reinterpret_cast<const char *>(handler),
+                special_data_id));
+          _debugLog(_debug_tag, "[%s] Got id %d for special include at node %d from handler [%s]",
+              __FUNCTION__, special_data_id, n_prescanned_nodes + 1, handler_id.c_str());
+        }
+        break;
+      default:
+        break;
+    }
+  }
+
+  return true;
+}
+
+void
+EsiProcessor::_addFooterData() {
+  const char *footer;
+  int footer_len;
+  for (IncludeHandlerMap::iterator iter = _include_handlers.begin(); iter != _include_handlers.end(); ++iter) {
+    iter->second->getFooter(footer, footer_len);
+    if (footer_len > 0) {
+      _output_data.append(footer, footer_len);
+    }
+  }
+}
diff --git a/plugins/experimental/esi/lib/EsiProcessor.h b/plugins/experimental/esi/lib/EsiProcessor.h
new file mode 100644
index 00000000..16004c67
--- /dev/null
+++ b/plugins/experimental/esi/lib/EsiProcessor.h
@@ -0,0 +1,168 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_PROCESSOR_H
+#define _ESI_PROCESSOR_H
+
+#include <string>
+#include <map>
+#include<pthread.h>
+#include "lib/ComponentBase.h"
+#include "lib/StringHash.h"
+#include "lib/DocNode.h"
+#include "EsiParser.h"
+#include "HttpDataFetcher.h"
+#include "Variables.h"
+#include "Expression.h"
+#include "SpecialIncludeHandler.h"
+#include "HandlerManager.h"
+
+extern pthread_key_t key;
+class EsiProcessor : private EsiLib::ComponentBase
+{
+
+public:
+  enum UsePackedNodeResult { PROCESS_IN_PROGRESS, UNPACK_FAILURE, PROCESS_SUCCESS, PROCESS_FAILURE };
+
+  EsiProcessor(const char *debug_tag, const char *parser_debug_tag, const char *expression_debug_tag,
+               EsiLib::ComponentBase::Debug debug_func, EsiLib::ComponentBase::Error error_func,
+               HttpDataFetcher &fetcher, EsiLib::Variables &variables,
+               const EsiLib::HandlerManager &handler_mgr);
+  
+  /** Initializes the processor with the context of the request to be processed */
+  bool start();
+
+  /** Adds data to be parsed */
+  bool addParseData(const char *data, int data_len = -1);
+
+  /** convenient alternative to method above */ 
+  bool addParseData(const std::string &data) {
+    return addParseData(data.data(), data.size());
+  }
+  
+  /** Tells processor to wrap-up parsing; a final or the only piece of
+   * data can be optionally provided */
+  bool completeParse(const char *data = 0, int data_len = -1);
+  
+  /** convenient alternative to method above */ 
+  bool completeParse(const std::string &data) {
+    return completeParse(data.data(), data.size());
+  }
+  
+  enum ReturnCode { FAILURE, SUCCESS, NEED_MORE_DATA };
+  
+  /** Processes the currently parsed ESI document and returns processed 
+   * data in supplied out-parameters. Should be called when fetcher has 
+   * finished pulling in all data. 
+   * 
+   * try/attempt/except construct can generate new fetch requests
+   * during processing. Only in such cases is NEED_MORE_DATA returned;
+   * else FAILURE/SUCCESS is returned. */
+  ReturnCode process(const char *&data, int &data_len);
+
+  /** Process the ESI document and flush processed data as much as 
+   * possible. Can be called when fetcher hasn't finished pulling 
+   * in all data. */
+  ReturnCode flush(std:: string &data, int &overall_len);
+ 
+  /** returns packed version of document currently being processed */
+  void packNodeList(std::string &buffer, bool retain_buffer_data) {
+    return _node_list.pack(buffer, retain_buffer_data);
+  }
+  
+  /** Unpacks previously parsed and packed ESI node list from given
+   * buffer and preps for process(); Unpacked document will point to
+   * data in argument (i.e., caller space) */
+  UsePackedNodeResult usePackedNodeList(const char *data, int data_len);
+
+  /** convenient alternative to method above */
+  inline UsePackedNodeResult usePackedNodeList(const std::string &data) {
+    return usePackedNodeList(data.data(), data.size());
+  }
+
+  /** Clears state from current request */
+  void stop(); 
+
+  virtual ~EsiProcessor();
+
+private:
+  
+  enum EXEC_STATE { STOPPED, PARSING, WAITING_TO_PROCESS, PROCESSED, ERRORED };
+  EXEC_STATE _curr_state;
+
+  std::string _output_data;
+
+  EsiParser _parser;
+  EsiLib::DocNodeList _node_list;
+  int _n_prescanned_nodes;
+  int _n_processed_nodes;
+  int _n_processed_try_nodes;
+  int _overall_len;
+
+  HttpDataFetcher &_fetcher;
+  EsiLib::StringHash _include_urls;
+
+  bool _reqAdded;
+  bool _usePackedNodeList;
+  
+  bool _processEsiNode(const EsiLib::DocNodeList::iterator &iter);
+  bool _handleParseComplete();
+  bool _getIncludeData(const EsiLib::DocNode &node, const char **content_ptr = 0, int *content_len_ptr = 0);
+  DataStatus _getIncludeStatus(const EsiLib::DocNode &node);
+  bool _handleVars(const char *str, int str_len);
+  bool _handleChoose(EsiLib::DocNodeList::iterator &curr_node);
+  bool _handleTry(EsiLib::DocNodeList::iterator &curr_node);
+  bool _handleHtmlComment(const EsiLib::DocNodeList::iterator &curr_node);
+  bool _preprocess(EsiLib::DocNodeList &node_list, int &n_prescanned_nodes);
+  inline bool _isWhitespace(const char *data, int data_len);
+  void _addFooterData();
+
+  EsiLib::Variables &_esi_vars;
+  EsiLib::Expression _expression;
+
+  struct TryBlock {
+    EsiLib::DocNodeList &attempt_nodes;
+    EsiLib::DocNodeList &except_nodes;
+    EsiLib::DocNodeList::iterator pos;
+    TryBlock(EsiLib::DocNodeList &att, EsiLib::DocNodeList &exc, EsiLib::DocNodeList::iterator p) 
+      : attempt_nodes(att), except_nodes(exc), pos(p) { };
+  };
+  typedef std::list<TryBlock> TryBlockList;
+  TryBlockList _try_blocks;
+  int _n_try_blocks_processed;
+
+  const EsiLib::HandlerManager &_handler_manager;
+
+  static const char *INCLUDE_DATA_ID_ATTR; 
+
+  typedef std::map<std::string, EsiLib::SpecialIncludeHandler *> IncludeHandlerMap;
+  IncludeHandlerMap _include_handlers;
+
+  void error() {
+    stop();
+    _curr_state = ERRORED;
+  }
+};
+
+
+#endif // _ESI_PROCESSOR_H
diff --git a/plugins/experimental/esi/lib/Expression.cc b/plugins/experimental/esi/lib/Expression.cc
new file mode 100644
index 00000000..72b1580c
--- /dev/null
+++ b/plugins/experimental/esi/lib/Expression.cc
@@ -0,0 +1,256 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Expression.h"
+#include "Utils.h"
+
+using std::string;
+using namespace EsiLib;
+
+const string Expression::EMPTY_STRING("");
+const string Expression::TRUE_STRING("true");
+const Expression::OperatorString Expression::OPERATOR_STRINGS[N_OPERATORS] = { 
+  Expression::OperatorString("==", 2),
+  Expression::OperatorString("!=", 2),
+  Expression::OperatorString("<=", 2),
+  Expression::OperatorString(">=", 2),
+  Expression::OperatorString("<", 1),
+  Expression::OperatorString(">", 1),
+  Expression::OperatorString("!", 1),
+  Expression::OperatorString("|", 1),
+  Expression::OperatorString("&", 1) 
+};
+
+Expression::Expression(const char *debug_tag, ComponentBase::Debug debug_func, 
+                             ComponentBase::Error error_func, Variables &variables) 
+  : ComponentBase(debug_tag, debug_func, error_func), _variables(variables), _value("") {
+}
+  
+inline bool
+Expression::_stripQuotes(const char *&expr, int &expr_len) const {
+  char quote_char = 0;
+  if (expr[0] == '\'') {
+    quote_char = '\'';
+  } else if (expr[0] == '"') {
+    quote_char = '"';
+  }
+  if (quote_char) {
+    if (expr[expr_len - 1] != quote_char) {
+      _errorLog("[%s] Unterminated quote in expression [%.*s]", __FUNCTION__, expr_len, expr);
+      return false;
+    }
+    expr_len -= 2;
+    ++expr;
+  }
+  return true;
+}
+
+const string &
+Expression::expand(const char *expr, int expr_len /* = -1 */) {
+  int var_start_index = -1, var_size;
+  Utils::trimWhiteSpace(expr, expr_len);
+  if (!expr_len) {
+    _debugLog(_debug_tag, "[%s] Returning empty string for empty expression", __FUNCTION__);
+    goto lFail;
+  }
+  if (!_stripQuotes(expr, expr_len)) {
+    goto lFail;
+  }
+  _value.clear();
+  bool last_variable_expanded;
+  for (int i = 0; i < expr_len; ++i) {
+    if ((expr[i] == '$') && ((expr_len - i) >= 3) && (expr[i + 1] == '(')) {
+      if (var_start_index != -1) {
+        _debugLog(_debug_tag, "[%s] Cannot have nested variables in expression [%.*s]",
+                  __FUNCTION__, expr_len, expr);
+        goto lFail;
+      }
+      var_start_index = i + 2; // skip the '$('
+      ++i; // skip past '$'; for loop's incrementor will skip past '('
+    } else if (((expr[i] == ')') || (expr[i] == '|')) && (var_start_index != -1)) {
+      last_variable_expanded = false;
+      var_size = i - var_start_index;
+      if (var_size) {
+        const string &var_value = _variables.getValue(expr + var_start_index, var_size);
+        _debugLog(_debug_tag, "[%s] Got value [%.*s] for variable [%.*s]",
+                  __FUNCTION__, var_value.size(), var_value.data(), var_size, expr + var_start_index);
+        last_variable_expanded = (var_value.size() > 0);
+        _value += var_value;
+      } else {
+        _debugLog(_debug_tag, "[%s] Parsing out empty variable", __FUNCTION__);
+      }
+      if (expr[i] == '|') {
+        int default_value_start = ++i;
+        while (i < expr_len) {
+          if (expr[i] == ')') {
+            break;
+          }
+          ++i;
+        }
+        if (i == expr_len) {
+          _debugLog(_debug_tag, "[%s] Expression [%.*s] has unterminated variable (with default value)",
+                    __FUNCTION__, expr_len, expr);
+          goto lFail;
+        }
+        const char *default_value = expr + default_value_start;
+        int default_value_len = i - default_value_start;
+        if (!_stripQuotes(default_value, default_value_len)) {
+          goto lFail;
+        }
+        if (!last_variable_expanded) {
+          _debugLog(_debug_tag, "[%s] Using default value [%.*s] as variable expanded to empty string",
+                    __FUNCTION__, default_value_len, default_value);
+          _value.append(default_value, default_value_len);
+        }
+      }
+      var_start_index = -1;
+    } else if (var_start_index == -1) {
+      _value += expr[i];
+    }
+  }
+  if (var_start_index != -1) {
+    _debugLog(_debug_tag, "[%s] Returning empty string for expression with unterminated variable [%.*s]",
+              __FUNCTION__, expr_len - var_start_index, expr + var_start_index);
+    goto lFail;
+  }
+  _debugLog(_debug_tag, "[%s] Returning final expanded expression [%.*s]",
+            __FUNCTION__, _value.size(), _value.data());
+  return _value;
+
+lFail:
+  return EMPTY_STRING;
+}
+
+inline int
+Expression::_findOperator(const char *expr, int expr_len, Operator &op) const {
+  string expr_str(expr, expr_len);
+  size_t sep;
+  for (int i = 0; i < N_OPERATORS; ++i) {
+    const OperatorString &op_str = OPERATOR_STRINGS[i];
+    sep = (op_str.str_len == 1) ? expr_str.find(op_str.str[0]) : expr_str.find(op_str.str);
+    if (sep < expr_str.size()) {
+      op = static_cast<Operator>(i);
+      return static_cast<int>(sep);
+    }
+  }
+  return -1;
+}
+
+inline bool
+Expression::_evalSimpleExpr(const char *expr, int expr_len) {
+  const string &lhs = expand(expr, expr_len);
+  _debugLog(_debug_tag, "[%s] simple expression [%.*s] evaluated to [%.*s]",
+            __FUNCTION__, expr_len, expr, lhs.size(), lhs.data());
+  double val;
+  return _convert(lhs, val) ? val : !lhs.empty();
+}
+
+
+bool
+Expression::evaluate(const char *expr, int expr_len /* = -1 */) {
+  Utils::trimWhiteSpace(expr, expr_len);
+  if (!expr_len) {
+    _debugLog(_debug_tag, "[%s] Returning false for empty expression", __FUNCTION__);
+    return false;
+  }
+  Operator op = OP_EQ; // stupid initialized checking, make gcc happy
+  const char *subexpr;
+  int subexpr_len;
+  string lhs, rhs;
+  bool retval = false;
+  int sep = _findOperator(expr, expr_len, op);
+
+  if (sep == -1) {
+    retval = _evalSimpleExpr(expr, expr_len);
+  } else if (_isBinaryOperator(op)) {
+    subexpr = expr;
+    subexpr_len = sep;
+    lhs = expand(subexpr, subexpr_len);
+    _debugLog(_debug_tag, "[%s] LHS [%.*s] expanded to [%.*s]",
+              __FUNCTION__, subexpr_len, subexpr, lhs.size(), lhs.data());
+    subexpr = expr + sep + OPERATOR_STRINGS[op].str_len;
+    subexpr_len = expr_len - subexpr_len - OPERATOR_STRINGS[op].str_len;
+    rhs = expand(subexpr, subexpr_len);
+    _debugLog(_debug_tag, "[%s] RHS [%.*s] expanded to [%.*s]",
+              __FUNCTION__, subexpr_len, subexpr, rhs.size(), rhs.data());
+    double lhs_numerical = 0;
+    double rhs_numerical = 0;
+    bool are_numerical = _convert(lhs, lhs_numerical);
+    are_numerical = are_numerical ? _convert(rhs, rhs_numerical) : false;
+    switch (op) {
+    case OP_EQ:
+      retval = are_numerical ? (lhs_numerical == rhs_numerical) : (lhs == rhs);
+      break;
+    case OP_NEQ:
+      retval = are_numerical ? (lhs_numerical != rhs_numerical) : (lhs != rhs);
+      break;
+    case OP_OR:
+      retval = are_numerical ? (lhs_numerical || rhs_numerical) : (lhs.size() || rhs.size());
+      break;
+    case OP_AND:
+      retval = are_numerical ? (lhs_numerical && rhs_numerical) : (lhs.size() && rhs.size());
+      break;
+    default:
+      if (lhs.empty() || rhs.empty()) {
+        // one of the sides expanded to nothing; invalid comparison
+        _debugLog(_debug_tag, "[%s] LHS/RHS empty. Cannot evaluate comparisons", __FUNCTION__);
+        retval = false;
+      } else {
+        switch (op) {
+        case OP_LT:
+          retval = are_numerical ? (lhs_numerical < rhs_numerical) : (lhs < rhs);
+          break;
+        case OP_GT:
+          retval = are_numerical ? (lhs_numerical > rhs_numerical) : (lhs > rhs);
+          break;
+        case OP_LTEQ:
+          retval = are_numerical ? (lhs_numerical <= rhs_numerical) : (lhs <= rhs);
+          break;
+        case OP_GTEQ:
+          retval = are_numerical ? (lhs_numerical >= rhs_numerical) : (lhs >= rhs);
+          break;
+        default:
+          _debugLog(_debug_tag, "[%s] Unknown operator in expression [%.*s]; returning false",
+                    __FUNCTION__, expr_len, expr);
+        }
+      }
+      break;
+    }
+  } else if (op == OP_NOT) {
+    if (sep == 0) {
+      subexpr = expr + 1;
+      subexpr_len = expr_len - 1;
+      retval = !_evalSimpleExpr(expr + 1, expr_len - 1);
+    } else {
+      _debugLog(_debug_tag, "[%s] Unary negation not preceding literal in expression [%.*s]; assuming true",
+                __FUNCTION__, expr_len, expr);
+      retval = true;
+    }
+  } else {
+    _debugLog(_debug_tag, "[%s] Unknown operator in expression [%.*s]; returning false",
+              __FUNCTION__, expr_len, expr);
+  }
+  _debugLog(_debug_tag, "[%s] Returning [%s] for expression [%.*s]",
+            __FUNCTION__, (retval ? "true" : "false"), expr_len, expr);
+  return retval;
+}
diff --git a/plugins/experimental/esi/lib/Expression.h b/plugins/experimental/esi/lib/Expression.h
new file mode 100644
index 00000000..ad982dcb
--- /dev/null
+++ b/plugins/experimental/esi/lib/Expression.h
@@ -0,0 +1,108 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_EXPRESSION_H
+
+#define _ESI_EXPRESSION_H
+
+#include <string>
+#include <stdlib.h>
+
+#include "ComponentBase.h"
+#include "Variables.h"
+
+namespace EsiLib { 
+
+class Expression : private ComponentBase {
+
+public:
+
+  Expression(const char *debug_tag, ComponentBase::Debug debug_func, ComponentBase::Error error_func,
+             Variables &variables);
+  
+  /** substitutes variables (if any) in given expression */
+  const std::string &expand(const char *expr, int expr_len = -1);
+
+  /** convenient alternative for method above */
+  const std::string &expand(const std::string &expr) {
+    return expand(expr.data(), expr.size());
+  }
+
+  /** evaluates boolean value of given expression */
+  bool evaluate(const char *expr, int expr_len = -1);
+
+  /** convenient alternative for method above */
+  bool evaluate(const std::string &expr) {
+    return evaluate(expr.data(), expr.size());
+  }
+
+  virtual ~Expression() { };
+
+private:
+
+  static const std::string EMPTY_STRING;
+  static const std::string TRUE_STRING;
+
+  Variables &_variables;
+  std::string _value;
+
+  // these are arranged in parse priority format indices correspond to op strings array 
+  enum Operator { OP_EQ, OP_NEQ, OP_LTEQ, OP_GTEQ, OP_LT, OP_GT, OP_NOT, OP_OR, OP_AND, N_OPERATORS };
+
+  struct OperatorString {
+    const char *str;
+    int str_len;
+    OperatorString(const char *s = 0, int s_len = -1) : str(s), str_len(s_len) { };
+  };
+  
+  static const OperatorString OPERATOR_STRINGS[N_OPERATORS];
+
+  inline void _trimWhiteSpace(const char *&expr, int &expr_len) const;
+  
+  inline bool _stripQuotes(const char *&expr, int &expr_len) const;
+  
+  inline int _findOperator(const char *expr, int expr_len, Operator &op) const;
+  
+  inline bool _isBinaryOperator(Operator &op) const {
+    return ((op == OP_EQ) || (op == OP_NEQ) || (op == OP_LT) || (op == OP_GT) ||
+            (op == OP_LTEQ) || (op == OP_GTEQ) || (op == OP_OR) || (op == OP_AND));
+  }
+
+  inline bool _convert(const std::string &str, double &value) {
+    size_t str_size = str.size();
+    if (str_size) {
+      char *endp;
+      const char *str_ptr = str.c_str();
+      // Solaris is messed up, in that strtod() does not honor C99/SUSv3 mode.
+      value = strtold(str_ptr, &endp);
+      return (static_cast<unsigned int>(endp - str_ptr) == str_size);
+    }
+    return false;
+  }
+
+  inline bool _evalSimpleExpr(const char *expr, int expr_len);
+};
+
+};
+
+#endif // _ESI_EXPRESSION_H
diff --git a/plugins/experimental/esi/lib/FailureInfo.cc b/plugins/experimental/esi/lib/FailureInfo.cc
new file mode 100644
index 00000000..24954ab8
--- /dev/null
+++ b/plugins/experimental/esi/lib/FailureInfo.cc
@@ -0,0 +1,109 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "FailureInfo.h"
+#include <cstdlib>
+
+static int LOWER_CUT_OFF=300;
+static int HIGHER_CUT_OFF=1000;
+
+void FailureInfo::registerSuccFail(bool isSuccess)
+{
+    struct timeval currTime,result;
+    gettimeofday(&currTime,NULL);
+    timersub(&currTime,&_start,&result);
+
+    if( ( result.tv_sec*1000000+result.tv_usec )   > (WINDOW_SIZE*1000) )
+    {
+        ++_windowMarker;
+        _windowMarker%=_totalSlots;
+      
+        if(_windowMarker==_totalSlots-1)
+        {
+            ++_windowsPassed;
+            double avg=0;
+            for(size_t i=0;i<_totalSlots;i++)
+            {
+                if(_statistics[i].first >0)
+                {
+                    avg+=_statistics[i].first/(_statistics[i].first+_statistics[i].second);
+                }
+            }
+            _avgOverWindow+=avg/_windowsPassed;
+            _debugLog(_debug_tag,"[%s] current average over window is %lf",__FUNCTION__,_avgOverWindow);
+        }
+    
+        gettimeofday(&_start,NULL);
+    }
+
+   if(isSuccess)
+   {
+       _statistics[_windowMarker].second++;
+   }
+   
+   else
+   {
+       _statistics[_windowMarker].first++;
+   }
+}
+    
+bool FailureInfo::isAttemptReq()
+{
+    double avg=0;
+    for(size_t i=0;i<_totalSlots;i++)
+    {
+        if(_statistics[i].first >0)
+        {
+            avg+=_statistics[i].first/(_statistics[i].first+_statistics[i].second);
+            
+        }
+    }
+    
+    if(avg) { 
+        //Average it out for time being
+        avg=avg/_totalSlots;
+        double prob;
+
+        if(avg*1000<LOWER_CUT_OFF) {
+            prob=avg;
+
+        } else {
+            double mapFactor=( ( (avg*1000-LOWER_CUT_OFF)*(avg*1000-LOWER_CUT_OFF) ) / (HIGHER_CUT_OFF-LOWER_CUT_OFF ) )+LOWER_CUT_OFF;
+            prob=mapFactor/1000;
+        }
+        
+        if(static_cast<int>(prob))
+            prob=_avgOverWindow;
+        
+        _debugLog(_debug_tag,"[%s] Calculated probability is %lf",__FUNCTION__,prob);
+        int decision=rand()%100;
+
+        if(decision<prob*100) {
+            _debugLog(_debug_tag,"[%s] fetch request will not be added for an attempt request",__FUNCTION__);
+            return (_requestMade=false);
+        }
+    }
+        
+    _debugLog(_debug_tag,"[%s] fetch request will be added for an attempt request",__FUNCTION__);
+    return true;
+}
diff --git a/plugins/experimental/esi/lib/FailureInfo.h b/plugins/experimental/esi/lib/FailureInfo.h
new file mode 100644
index 00000000..8f4705b0
--- /dev/null
+++ b/plugins/experimental/esi/lib/FailureInfo.h
@@ -0,0 +1,113 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef FAILURE_INFO_H
+#define FAILURE_INFO_H
+#include <time.h>
+#include <vector>
+#include <map>
+#include <sys/time.h>
+#if defined(solaris) && !defined(timersub)
+#define timersub(a, b, result) \
+  do { \
+    (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
+    (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
+    if ((result)->tv_usec < 0) { \
+      --(result)->tv_sec; \
+      (result)->tv_usec += 1000000; \
+    } \
+  } while (0)
+#endif
+#include <string>
+#include <pthread.h>
+#include "ComponentBase.h"
+using namespace std;
+
+typedef std::vector <std::pair <double , double > > FailureToSuccess;
+typedef std::map<std::string,class FailureInfo*> FailureData;
+
+static const int WINDOW_SIZE=200;
+static const int TOTAL_DURATION=2000;
+
+class FailureInfo : private EsiLib::ComponentBase
+{
+public:
+
+    FailureInfo(const char* debug_tag,ComponentBase::Debug debug_func,ComponentBase::Error error_func)
+            :ComponentBase(debug_tag,debug_func,error_func),_windowsPassed(0),_avgOverWindow(0),_requestMade(true)
+    {
+        _totalSlots=TOTAL_DURATION/WINDOW_SIZE;
+        _windowMarker=0;
+        for(size_t i=0;i<_totalSlots;i++) {
+            _statistics.push_back(make_pair(0,0));
+        }
+        _debugLog(_debug_tag,"FailureInfo Ctor:inserting URL object into the statistics map [FailureInfo object]%p",this);
+    };
+
+    ~FailureInfo(){}
+
+    /* Fills the statistics vector depending
+     * upon the position of the window marker
+     */
+    void registerSuccFail(bool isSuccess);
+
+    /*
+     * Decides if an attempt shud be made
+     * for the attempt tag or except tag
+     * depending upon the statistics
+     */
+    bool isAttemptReq();
+
+private:
+    /*
+     * Keeps track of failures of attempt
+     * vs success
+     */
+    FailureToSuccess _statistics;
+
+    /* Slot on which to register success/failures
+     * Changes as soon as time has passed windowSize
+     */
+    size_t _windowMarker;
+
+    /* Number of slots to be filled over time */
+    size_t _totalSlots;
+
+    /* Start time for the window slots */
+    struct timeval _start;
+
+    /* Keep track of the number of windows filled prev*/
+    size_t _windowsPassed;
+    
+    /*Used as a deciding factor between attempt/except
+     * incase prob is complete truth
+     */
+    double _avgOverWindow;
+    
+public:
+    /*Was a reqeust made*/
+    bool _requestMade;
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/lib/HandlerManager.cc b/plugins/experimental/esi/lib/HandlerManager.cc
new file mode 100644
index 00000000..b0d96016
--- /dev/null
+++ b/plugins/experimental/esi/lib/HandlerManager.cc
@@ -0,0 +1,92 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <dlfcn.h>
+
+#include "HandlerManager.h"
+
+using std::map;
+using std::string;
+using namespace EsiLib;
+
+#define CLASS_NAME "HandlerManager"
+
+const char *const HandlerManager::FACTORY_FUNCTION_NAME = "createSpecialIncludeHandler";
+
+void
+HandlerManager::loadObjects(const Utils::KeyValueMap &handlers) {
+
+  ModuleHandleMap::iterator path_map_iter;
+
+  for (Utils::KeyValueMap::const_iterator id_map_iter = handlers.begin();
+       id_map_iter != handlers.end(); ++id_map_iter) {
+
+    const string &id = id_map_iter->first;
+    const string &path = id_map_iter->second;
+
+    path_map_iter = _path_to_module_map.find(path);
+
+    if (path_map_iter != _path_to_module_map.end()) {
+      // we have already loaded this object; just point id to original handle
+      _id_to_function_map.insert(FunctionHandleMap::value_type(id, (path_map_iter->second).function));
+    } else {
+      // no, we have to load this object
+      void *obj_handle = dlopen(path.c_str(), RTLD_LAZY | RTLD_LOCAL);
+      if (!obj_handle) {
+        _errorLog("[%s::%s] Could not load module [%s]. Error [%s]",
+                  CLASS_NAME, __FUNCTION__, path.c_str(), dlerror());
+      } else {
+        SpecialIncludeHandlerCreator func_handle =
+          (SpecialIncludeHandlerCreator)(dlsym(obj_handle, FACTORY_FUNCTION_NAME));
+        if (!func_handle) {
+          _errorLog("[%s::%s] Could not find factory function [%s] in module [%s]. Error [%s]",
+                    CLASS_NAME, __FUNCTION__, FACTORY_FUNCTION_NAME, path.c_str(), dlerror());
+          dlclose(obj_handle);
+        } else {
+          _id_to_function_map.insert(FunctionHandleMap::value_type(id, func_handle));
+          _path_to_module_map.insert(ModuleHandleMap::value_type(path, ModuleHandles(obj_handle, func_handle)));
+          _debugLog(_debug_tag, "[%s] Loaded handler module [%s]", __FUNCTION__, path.c_str());
+        }
+      }
+    }
+  }
+}
+
+SpecialIncludeHandler *
+HandlerManager::getHandler(Variables &esi_vars, Expression &esi_expr, HttpDataFetcher &fetcher,
+                           const std::string &id) const {
+  FunctionHandleMap::const_iterator iter = _id_to_function_map.find(id);
+  if (iter == _id_to_function_map.end()) {
+    _errorLog("[%s::%s] handler id [%s] does not map to any loaded object",
+              CLASS_NAME, __FUNCTION__, id.c_str());
+    return 0;
+  }
+  return (*(iter->second))(esi_vars, esi_expr, fetcher, id);
+}
+
+HandlerManager::~HandlerManager() {
+  for (ModuleHandleMap::iterator map_iter = _path_to_module_map.begin();
+       map_iter != _path_to_module_map.end(); ++map_iter) {
+    dlclose((map_iter->second).object);
+  }
+}
diff --git a/plugins/experimental/esi/lib/HandlerManager.h b/plugins/experimental/esi/lib/HandlerManager.h
new file mode 100644
index 00000000..5aab0b7d
--- /dev/null
+++ b/plugins/experimental/esi/lib/HandlerManager.h
@@ -0,0 +1,75 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _HANDLER_MANAGER_H
+
+#define _HANDLER_MANAGER_H
+
+#include <string>
+#include <map>
+
+#include "ComponentBase.h"
+#include "Utils.h"
+#include "SpecialIncludeHandler.h"
+#include "IncludeHandlerFactory.h"
+#include "Variables.h"
+#include "HttpDataFetcher.h"
+
+namespace EsiLib {
+
+class HandlerManager : protected ComponentBase {
+
+public:
+
+  HandlerManager(const char *debug_tag, Debug debug_func, Error error_func) :
+    ComponentBase(debug_tag, debug_func, error_func) {
+  };
+
+  void loadObjects(const Utils::KeyValueMap &handlers);
+
+  SpecialIncludeHandler *getHandler(Variables &esi_vars, Expression &esi_expr,
+                                    HttpDataFetcher &http_fetcher, const std::string &id) const;
+
+  ~HandlerManager();
+
+private:
+
+  typedef std::map<std::string, SpecialIncludeHandlerCreator> FunctionHandleMap;
+
+  struct ModuleHandles {
+    void *object;
+    SpecialIncludeHandlerCreator function;
+    ModuleHandles(void *o = 0, SpecialIncludeHandlerCreator f = 0) : object(o), function(f) { };
+  };
+
+  typedef std::map<std::string, ModuleHandles> ModuleHandleMap;
+
+  FunctionHandleMap _id_to_function_map;
+  ModuleHandleMap _path_to_module_map;
+
+  static const char *const FACTORY_FUNCTION_NAME;
+};
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/lib/HttpHeader.h b/plugins/experimental/esi/lib/HttpHeader.h
new file mode 100644
index 00000000..bdef5ce0
--- /dev/null
+++ b/plugins/experimental/esi/lib/HttpHeader.h
@@ -0,0 +1,45 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_HTTP_HEADER_H
+
+#define _ESI_HTTP_HEADER_H
+
+#include <list>
+
+namespace EsiLib {
+
+struct HttpHeader {
+  const char *name;
+  int name_len;
+  const char *value;
+  int value_len;
+  HttpHeader(const char *n = 0, int n_len = -1, const char *v = 0, int v_len = -1) 
+    : name(n), name_len(n_len), value(v), value_len(v_len) { };
+};
+
+typedef std::list<HttpHeader> HttpHeaderList;
+
+};
+
+#endif // _ESI_HTTP_HEADER_H
diff --git a/plugins/experimental/esi/lib/IncludeHandlerFactory.h b/plugins/experimental/esi/lib/IncludeHandlerFactory.h
new file mode 100644
index 00000000..2845d495
--- /dev/null
+++ b/plugins/experimental/esi/lib/IncludeHandlerFactory.h
@@ -0,0 +1,54 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _INCLUDE_HANDLER_FACTORY_H
+
+#define _INCLUDE_HANDLER_FACTORY_H
+
+#include <string>
+#include "SpecialIncludeHandler.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EsiLib::SpecialIncludeHandler *createSpecialIncludeHandler(EsiLib::Variables &esi_vars,
+                                                           EsiLib::Expression &esi_expr,
+                                                           HttpDataFetcher &fetcher,
+                                                           const std::string &id);
+  
+#ifdef __cplusplus
+}
+#endif
+
+namespace EsiLib {
+
+typedef SpecialIncludeHandler *(*SpecialIncludeHandlerCreator)(Variables &esi_vars,
+                                                               Expression &esi_expr,
+                                                               HttpDataFetcher &fetcher,
+                                                               const std::string &id);
+
+};
+
+#endif
+
diff --git a/plugins/experimental/esi/lib/SpecialIncludeHandler.h b/plugins/experimental/esi/lib/SpecialIncludeHandler.h
new file mode 100644
index 00000000..e3ba5a9b
--- /dev/null
+++ b/plugins/experimental/esi/lib/SpecialIncludeHandler.h
@@ -0,0 +1,73 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_SPECIAL_INCLUDE_HANDLER
+
+#define _ESI_SPECIAL_INCLUDE_HANDLER
+
+#include "HttpDataFetcher.h"
+#include "Variables.h"
+#include "Expression.h"
+
+namespace EsiLib {
+
+class SpecialIncludeHandler {
+
+public:
+
+  SpecialIncludeHandler(Variables &esi_vars,
+                        Expression &esi_expr, HttpDataFetcher &http_fetcher)
+    : _esi_vars(esi_vars), _esi_expr(esi_expr), _http_fetcher(http_fetcher) {
+  }
+
+  virtual int handleInclude(const char *data, int data_len) = 0;
+
+  virtual void handleParseComplete() = 0;
+
+  /** trivial implementation */
+  virtual DataStatus getIncludeStatus(int include_id) {
+    const char *data;
+    int data_len;
+    return getData(include_id, data, data_len) ? STATUS_DATA_AVAILABLE : STATUS_ERROR;
+  }
+
+  virtual bool getData(int include_id, const char *&data, int &data_len) = 0;
+
+  virtual void getFooter(const char *&footer, int &footer_len) {
+    footer = NULL;
+    footer_len = 0;
+  }
+
+  virtual ~SpecialIncludeHandler() { };
+
+protected:
+
+  Variables &_esi_vars;
+  Expression &_esi_expr;
+  HttpDataFetcher &_http_fetcher;
+
+};
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/lib/Stats.cc b/plugins/experimental/esi/lib/Stats.cc
new file mode 100644
index 00000000..9da3cb51
--- /dev/null
+++ b/plugins/experimental/esi/lib/Stats.cc
@@ -0,0 +1,69 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Stats.h"
+
+using namespace EsiLib;
+
+namespace EsiLib {
+namespace Stats {
+const char *STAT_NAMES[Stats::MAX_STAT_ENUM] = {
+  "esi.n_os_docs",
+  "esi.n_cache_docs",
+  "esi.n_parse_errs",
+  "esi.n_includes",
+  "esi.n_include_errs",
+  "esi.n_spcl_includes",
+  "esi.n_spcl_include_errs"
+};
+
+int g_stat_indices[Stats::MAX_STAT_ENUM] = {0};
+StatSystem *g_system = 0;
+
+void init(StatSystem *system) {
+  g_system = system;
+  if (g_system) {
+    for (int i = 0; i < Stats::MAX_STAT_ENUM; ++i) {
+//FIXME doesn't return avalue.
+g_system->create(i);
+/*      if (!g_system->create(i)) {
+        Utils::ERROR_LOG("[%s] Unable to create stat [%s]", __FUNCTION__, Stats::STAT_NAMES[i]);
+      }*/
+    }
+  }
+}
+
+//FIXME step should be TSMgmtInt but for some reason the linker is having some strange int vs long name mangling issue.
+void increment(Stats::STAT st, int step/* = 1 */) {
+  if (g_system) {
+//FIXME doesn't return avalue.
+g_system->increment(st, step);
+/*
+    if (!g_system->increment(st, step)) {
+      Utils::ERROR_LOG("[%s] Unable to increment stat [%s] by step [%d]", __FUNCTION__, step,
+                       Stats::STAT_NAMES[st]);
+    }
+*/
+  }
+}
+}}
diff --git a/plugins/experimental/esi/lib/Stats.h b/plugins/experimental/esi/lib/Stats.h
new file mode 100644
index 00000000..0d8dd676
--- /dev/null
+++ b/plugins/experimental/esi/lib/Stats.h
@@ -0,0 +1,65 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_STATS_H
+
+#define _ESI_STATS_H
+
+#include "Utils.h"
+
+namespace EsiLib {
+
+/** interface that stat systems should implement */
+class StatSystem {
+public:
+  virtual void create(int handle) = 0;
+//FIXME step should be TSMgmtInt
+  virtual void increment(int handle, int step = 1) = 0;
+  virtual ~StatSystem() { };
+};
+
+namespace Stats {
+
+enum STAT { N_OS_DOCS = 0,
+            N_CACHE_DOCS = 1,
+            N_PARSE_ERRS = 2,
+            N_INCLUDES = 3,
+            N_INCLUDE_ERRS = 4,
+            N_SPCL_INCLUDES = 5,
+            N_SPCL_INCLUDE_ERRS = 6,
+            MAX_STAT_ENUM = 7 };
+
+extern const char *STAT_NAMES[MAX_STAT_ENUM];
+extern int g_stat_indices[Stats::MAX_STAT_ENUM];
+extern StatSystem *g_system;
+
+void init(StatSystem *system);
+
+void increment(STAT st, int step = 1);
+
+};
+
+};
+              
+
+#endif
diff --git a/plugins/experimental/esi/lib/StringHash.h b/plugins/experimental/esi/lib/StringHash.h
new file mode 100644
index 00000000..6739cefb
--- /dev/null
+++ b/plugins/experimental/esi/lib/StringHash.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _STRING_HASH_H
+
+#define _STRING_HASH_H
+
+#include <string>
+#include <ext/hash_map>
+
+namespace EsiLib {
+
+struct StringHasher {
+  inline size_t operator ()(const std::string &str) const {
+    return __gnu_cxx::hash<const char *>()(str.c_str());
+  };
+};
+
+typedef __gnu_cxx::hash_map<std::string, std::string, StringHasher> StringHash;
+
+template<typename T>
+class StringKeyHash : public __gnu_cxx::hash_map<std::string, T, StringHasher> {
+};
+
+};
+
+#endif // _STRING_HASH_H
diff --git a/plugins/experimental/esi/lib/Utils.cc b/plugins/experimental/esi/lib/Utils.cc
new file mode 100644
index 00000000..047fbe6c
--- /dev/null
+++ b/plugins/experimental/esi/lib/Utils.cc
@@ -0,0 +1,195 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Utils.h"
+
+#include <sstream>
+
+using namespace EsiLib;
+
+ComponentBase::Debug Utils::DEBUG_LOG(0);
+ComponentBase::Error Utils::ERROR_LOG(0);
+
+#define DEBUG_TAG "EsiUtils"
+
+using std::string;
+
+void
+Utils::init(ComponentBase::Debug debug_func, ComponentBase::Error error_func) {
+  DEBUG_LOG = debug_func;
+  ERROR_LOG = error_func;
+}
+
+bool
+Utils::getAttribute(const string &data, const string &attr, size_t curr_pos, size_t end_pos,
+                    Attribute &attr_info,
+                    size_t *term_pos /* = 0 */, char terminator /* = 0 */) {
+  size_t attr_start = data.find(attr, curr_pos);
+  if (attr_start >= end_pos) {
+    ERROR_LOG("[%s] Tag has no [%.*s] attribute", __FUNCTION__, attr.size(), attr.data());
+    return false;
+  }
+  curr_pos = attr_start + attr.size();
+  bool equals_found = false;
+  for (; curr_pos < end_pos; ++curr_pos) {
+    if (data[curr_pos] == ' ') {
+      continue;
+    } else {
+      if (data[curr_pos] == '=') {
+        equals_found = true;
+      }
+      break;
+    }
+  }
+  if (!equals_found) {
+    ERROR_LOG("[%s] Attribute [%.*s] has no value", __FUNCTION__, attr.size(), attr.data());
+    return false;
+  }
+  ++curr_pos;
+  if (curr_pos == end_pos) {
+    ERROR_LOG("[%s] No space for value after [%.*s] attribute", __FUNCTION__, attr.size(), attr.data());
+    return false;
+  }
+  bool in_quoted_part = false;
+  bool quoted = false;
+  size_t i;
+  for (i = curr_pos; i < end_pos; ++i) {
+    if (data[i] == '"') {
+      quoted = true;
+      in_quoted_part = !in_quoted_part;
+    }
+    else if (data[i] == ' ') {
+      if (!in_quoted_part) {
+        break;
+      }
+    } else if (terminator && !in_quoted_part && (data[i] == terminator)) {
+      break;
+    }
+  }
+  const char *data_start_ptr = data.data();
+  if (in_quoted_part) {
+    ERROR_LOG("[%s] Unterminated quote in value for attribute [%.*s] starting at [%.10s]",
+              __FUNCTION__, attr.size(), attr.data(), data_start_ptr + curr_pos);
+    return false;
+  }
+  if (terminator && term_pos) {
+    *term_pos = data.find(terminator, i);
+    if (*term_pos >= end_pos) {
+      ERROR_LOG("[%s] Unterminated attribute [%.*s]", __FUNCTION__, attr.size(), attr.data());
+      return false;
+    }
+  }
+  attr_info.name = data_start_ptr + attr_start;
+  attr_info.name_len = attr.size();
+  attr_info.value = data_start_ptr + curr_pos;
+  attr_info.value_len = i - curr_pos;
+  if (quoted) {
+    ++attr_info.value;
+    attr_info.value_len -= 2;
+  }
+  return true;
+}
+
+void
+Utils::parseKeyValueConfig(const std::list<string> &lines, KeyValueMap &kvMap) {
+  string key, value;
+  std::istringstream iss;
+  for (std::list<string>::const_iterator list_iter = lines.begin(); list_iter != lines.end(); ++list_iter) {
+    const string &conf_line = *list_iter; // handy reference
+    if (!conf_line.size() || (conf_line[0] == '#')) {
+      continue;
+    }
+    iss.clear();
+    iss.str(conf_line);
+    if (iss.good()) {
+      iss >> key;
+      iss >> value;
+      if (key.size() && value.size()) {
+        kvMap.insert(KeyValueMap::value_type(key, value));
+        DEBUG_LOG(DEBUG_TAG, "[%s] Read value [%s] for key [%s]", __FUNCTION__, value.c_str(), key.c_str());
+      }
+    }
+    key.clear();
+    value.clear();
+  }
+}
+
+void
+Utils::parseAttributes(const char *data, int data_len, AttributeList &attr_list,
+                       const char *pair_separators /* = " " */) {
+  attr_list.clear();
+  if (!data || (data_len <= 0)) {
+    return;
+  }
+  char separator_lookup[256] = { 0 };
+  int i;
+  for (i = 0; pair_separators[i]; ++i) {
+    separator_lookup[static_cast<unsigned int>(pair_separators[i])] = 1;
+  }
+  Attribute attr;
+  bool inside_quotes = false, end_of_attribute;
+  bool escape_on = false;
+  for (i = 0; (i < data_len) && ((isspace(data[i]) || separator_lookup[static_cast<unsigned int>(data[i])]));
+       ++i);
+  attr.name = data + i;
+  attr.value = 0;
+  for (; i <= data_len; ++i) {
+    end_of_attribute = false;
+    if (i == data_len) {
+      end_of_attribute = true;
+    } else if (separator_lookup[static_cast<unsigned int>(data[i])] && !inside_quotes) {
+      end_of_attribute = true;
+    } // else ignore separator when in quotes
+    if (end_of_attribute) {
+      if (!inside_quotes) {
+        if (attr.value > attr.name) {
+          attr.value_len = data + i - attr.value;
+          trimWhiteSpace(attr.name, attr.name_len);
+          trimWhiteSpace(attr.value, attr.value_len);
+          if (attr.value[0] == '"') {
+            ++attr.value;
+            attr.value_len -= 2;
+          }
+          if (attr.name_len && attr.value_len) {
+            DEBUG_LOG(DEBUG_TAG, "[%s] Added attribute with name [%.*s] and value [%.*s]",
+                      __FUNCTION__, attr.name_len, attr.name, attr.value_len, attr.value);
+            attr_list.push_back(attr);
+          } // else ignore empty name/value
+        } // else ignore attribute with no value
+      } // else ignore variable with unterminated quotes
+      for(; (i < data_len) && ((isspace(data[i]) || separator_lookup[static_cast<unsigned int>(data[i])]));
+          ++i);
+      attr.name = data + i;
+      attr.value = 0;
+      inside_quotes = false;
+    } else if (data[i] == '"') {
+      if (!escape_on) { 
+        inside_quotes = !inside_quotes;
+      }
+    } else if ((data[i] == '=') && !attr.value && !inside_quotes) {
+      attr.value = data + i + 1;
+      attr.name_len = data + i - attr.name;
+    }
+    escape_on = (data[i] == '\\') ? true : false;
+  }
+}
diff --git a/plugins/experimental/esi/lib/Utils.h b/plugins/experimental/esi/lib/Utils.h
new file mode 100644
index 00000000..6308e7c1
--- /dev/null
+++ b/plugins/experimental/esi/lib/Utils.h
@@ -0,0 +1,118 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_UTILS_H 
+
+#define _ESI_UTILS_H
+
+#include "DocNode.h"
+#include "ComponentBase.h"
+
+#include <cstring>
+#include <string>
+#include <map>
+#include <list>
+#include <ctype.h>
+
+namespace EsiLib {
+
+namespace Utils {
+
+  extern ComponentBase::Debug DEBUG_LOG;
+
+  extern ComponentBase::Error ERROR_LOG;
+
+  void init(ComponentBase::Debug debug_func, ComponentBase::Error error_func);
+
+  // looks for the given attribute in given data; a terminator can
+  // also be specified apart from the end_pos; attr_info will point
+  // to data inside data string
+  bool getAttribute(const std::string &data, const std::string &attr, size_t curr_pos, size_t end_pos,
+                    Attribute &attr_info, size_t *term_pos = 0, char terminator = 0);
+  
+  // less specialized version of method above
+  inline bool getAttribute(const std::string &data, const char *attr, Attribute &attr_info) {
+    return getAttribute(data, std::string(attr), 0, data.size(), attr_info);
+  }
+
+  // trims leading and trailing white space; input arguments
+  // will be modified to reflect trimmed data
+  inline void trimWhiteSpace(const char *&data, int &data_len) {
+    if (!data) {
+      data_len = 0;
+    } else {
+      if (data_len == -1) {
+        data_len = strlen(data);
+      }
+      int i, j;
+      for (i = 0; ((i < data_len) && isspace(data[i])); ++i);
+      for (j = (data_len - 1); ((j > i) && isspace(data[j])); --j);
+      data += i;
+      data_len = j - i + 1;
+    }
+  }
+
+  // does case insensitive comparison
+  inline bool areEqual(const char *str1, int str1_len, const char *str2, int str2_len) {
+    if (str1_len == str2_len) {
+      return (strncasecmp(str1, str2, str1_len) == 0);
+    }
+    return false;
+  }
+
+  inline bool areEqual(const char *str1, int str1_len, const std::string &str2) {
+    return areEqual(str1, str1_len, str2.data(), static_cast<int>(str2.size()));
+  }
+
+  // parses a string of name=value attributes separated by any character in pair_separators;
+  void parseAttributes(const char *data, int data_len, AttributeList &attr_list,
+                       const char *pair_separators = " ");
+
+  inline void parseAttributes(const std::string &data, AttributeList &attr_list,
+                              const char *pair_separators = " ") {
+    parseAttributes(data.data(), data.size(), attr_list, pair_separators);
+  }
+
+  typedef std::map<std::string, std::string> KeyValueMap;
+
+  // parses given lines (assumes <key><whitespace><value> format) and
+  // stores them in supplied map; Lines beginning with '#' are ignored
+  void parseKeyValueConfig(const std::list<std::string> &lines, KeyValueMap &kvMap);
+  
+  inline std::string unescape(const char *str, int len = -1) {
+    std::string retval("");
+    if (str) { 
+      for (int i = 0; (((len == -1) && (str[i] != '\0')) || (i < len)); ++i) {
+        if (str[i] != '\\') {
+          retval += str[i];
+        }
+      }
+    }
+    return retval;
+  }
+
+};
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/lib/Variables.cc b/plugins/experimental/esi/lib/Variables.cc
new file mode 100644
index 00000000..0bf93dd9
--- /dev/null
+++ b/plugins/experimental/esi/lib/Variables.cc
@@ -0,0 +1,446 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Variables.h"
+#include "Attribute.h"
+#include "Utils.h"
+
+#include <errno.h>
+
+using std::list;
+using std::pair;
+using std::string;
+using namespace EsiLib;
+
+const string Variables::EMPTY_STRING("");
+const string Variables::TRUE_STRING("true");
+const string Variables::VENDOR_STRING("vendor");
+const string Variables::VERSION_STRING("version");
+const string Variables::PLATFORM_STRING("platform");
+const string Variables::SIMPLE_HEADERS[] = { string("HOST"),
+                                             string("REFERER"),
+                                             string("") };
+
+const string Variables::SPECIAL_HEADERS[] = { string("ACCEPT-LANGUAGE"),
+                                              string("COOKIE"),
+                                              string("USER-AGENT"),
+                                              string("QUERY_STRING"),
+                                              string("") };
+
+const string Variables::NORM_SIMPLE_HEADERS[] = { string("HTTP_HOST"),
+                                                  string("HTTP_REFERER"),
+                                                  string("") };
+
+const string Variables::NORM_SPECIAL_HEADERS[] = { string("HTTP_ACCEPT_LANGUAGE"),
+                                                   string("HTTP_COOKIE"),
+                                                   string("HTTP_USER_AGENT"),
+                                                   string("QUERY_STRING"),
+                                                   string("") };
+
+inline string &
+Variables::_toUpperCase(string &str) const {
+  for (size_t i = 0; i < str.size(); ++i) {
+    if ((str[i] >= 'a') && (str[i] <= 'z')) {
+      str[i] = 'A' + (str[i] - 'a');
+    }
+  }
+  return str;
+}
+
+inline int 
+Variables::_searchHeaders(const string headers[], const char *name, int name_len) const {
+  int curr_header_size;
+  for (int i = 0; (curr_header_size = static_cast<int>(headers[i].size())); ++i) {
+    if ((name_len == curr_header_size) && 
+        (strncasecmp(headers[i].data(), name, curr_header_size) == 0)) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+inline void
+Variables::_insert(StringHash &hash, const std::string &key, const std::string &value) {
+  std::pair<StringHash::iterator, bool> result = hash.insert(StringHash::value_type(key, value));
+  if (!result.second) {
+    result.first->second = value;
+  }
+}
+
+void
+Variables::populate(const HttpHeader &header) {
+  if (header.name && header.name_len && header.value && header.value_len) {
+
+    // doing this because we can't change our const input arg
+    int name_len = (header.name_len == -1) ? strlen(header.name) : header.name_len;
+    int value_len = (header.value_len == -1) ? strlen(header.value) : header.value_len;
+
+    // we need to save the cookie string to build the jar from
+    if ((name_len == 6) && (strncasecmp(header.name, "Cookie", 6) == 0)) {
+      _releaseCookieJar();
+      if (_cookie_str.size()) {
+        _cookie_str.append(", ");
+      }
+      _cookie_str.append(header.value, value_len);
+    }
+
+    if (_headers_parsed) {
+      _parseHeader(header.name, name_len, header.value, value_len);
+    } else {
+      int match_index = _searchHeaders(SIMPLE_HEADERS, header.name, name_len);
+      if (match_index != -1) {
+        _cached_simple_headers[match_index].push_back(string(header.value, value_len));
+      } else {
+        match_index = _searchHeaders(SPECIAL_HEADERS, header.name, name_len);
+        if (match_index != -1) {
+          _cached_special_headers[match_index].push_back(string(header.value, value_len));
+        } else {
+          _debugLog(_debug_tag, "[%s] Not retaining header [%.*s]", __FUNCTION__, name_len,
+                    header.name);
+        }
+      }
+    }
+  }
+}
+
+inline void
+Variables::_parseSimpleHeader(SimpleHeader hdr, const string &value) {
+  _debugLog(_debug_tag, "[%s] Inserting value for simple header [%s]",
+            __FUNCTION__, SIMPLE_HEADERS[hdr].c_str());
+  _simple_data[NORM_SIMPLE_HEADERS[hdr]] = value;
+}
+
+inline void
+Variables::_parseSimpleHeader(SimpleHeader hdr, const char *value, int value_len) {
+  _parseSimpleHeader(hdr, string(value, value_len));
+}
+
+void
+Variables::_parseSpecialHeader(SpecialHeader hdr, const char *value, int value_len) {
+  switch (hdr) {
+  case HTTP_ACCEPT_LANGUAGE:
+    _parseAcceptLangString(value, value_len);
+    break;
+  case HTTP_COOKIE:
+    _parseCookieString(value, value_len);
+    break;
+  case HTTP_USER_AGENT:
+    _parseUserAgentString(value, value_len);
+    break;
+  default:
+    _debugLog(_debug_tag, "[%s] Skipping unrecognized header", __FUNCTION__);
+    break;
+  }
+}
+
+void
+Variables::_parseHeader(const char *name, int name_len, const char *value, int value_len) {
+  int match_index = _searchHeaders(SIMPLE_HEADERS, name, name_len);
+  if (match_index != -1) {
+    _parseSimpleHeader(static_cast<SimpleHeader>(match_index), value, value_len);
+  } else {
+    match_index = _searchHeaders(SPECIAL_HEADERS, name, name_len);
+    if (match_index != -1) {
+      _parseSpecialHeader(static_cast<SpecialHeader>(match_index), value, value_len);
+    } else {
+      _debugLog(_debug_tag, "[%s] Unrecognized header [%.*s]", __FUNCTION__, value_len, value);
+    }
+  }
+}
+
+void
+Variables::_parseQueryString(const char *query_string, int query_string_len) {
+  _insert(_simple_data, string("QUERY_STRING"), string(query_string, query_string_len));
+  AttributeList attr_list;
+  Utils::parseAttributes(query_string, query_string_len, attr_list, "&");
+  for (AttributeList::iterator iter = attr_list.begin(); iter != attr_list.end(); ++iter) {
+    _debugLog(_debug_tag, "[%s] Inserting query string variable [%.*s] with value [%.*s]",
+              __FUNCTION__, iter->name_len, iter->name, iter->value_len, iter->value);
+    _insert(_dict_data[QUERY_STRING], string(iter->name, iter->name_len),
+            string(iter->value, iter->value_len));
+  }
+}
+
+void
+Variables::_parseCachedHeaders() {
+  _debugLog(_debug_tag, "[%s] Parsing headers", __FUNCTION__);
+  for (int i = 0; i < N_SIMPLE_HEADERS; ++i) {
+    for (HeaderValueList::iterator value_iter = _cached_simple_headers[i].begin();
+         value_iter != _cached_simple_headers[i].end(); ++value_iter) {
+      _parseSimpleHeader(static_cast<SimpleHeader>(i), *value_iter);
+    }
+  }
+  for (int i = 0; i < N_SPECIAL_HEADERS; ++i) {
+    for (HeaderValueList::iterator value_iter = _cached_special_headers[i].begin();
+         value_iter != _cached_special_headers[i].end(); ++value_iter) {
+      _parseSpecialHeader(static_cast<SpecialHeader>(i), value_iter->data(), value_iter->size());
+    }
+  }
+}
+
+const std::string &
+Variables::getValue(const string &name) const {
+  if (!_headers_parsed || !_query_string_parsed) {
+    // we need to do this because we want to
+    // 1) present const getValue() to clients
+    // 2) parse lazily (only on demand)
+    Variables &non_const_self = const_cast<Variables &>(*this);
+    if (!_headers_parsed) {
+      non_const_self._parseCachedHeaders();
+      non_const_self._headers_parsed = true;
+    }
+    if (!_query_string_parsed) {
+      int query_string_size = static_cast<int>(_query_string.size());
+      if (query_string_size) {
+        non_const_self._parseQueryString(_query_string.data(), query_string_size);
+        non_const_self._query_string_parsed = true;
+      }
+    }
+  }
+  string search_key(name);
+  _toUpperCase(search_key);
+  StringHash::const_iterator iter = _simple_data.find(search_key);
+  if (iter != _simple_data.end()) {
+    _debugLog(_debug_tag, "[%s] Found value [%.*s] for variable [%.*s] in simple data", 
+              __FUNCTION__, iter->second.size(), iter->second.data(), name.size(), name.data());
+    return iter->second;
+  }
+  const char *header;
+  int header_len;
+  const char *attr;
+  int attr_len;
+  if (!_parseDictVariable(name, header, header_len, attr, attr_len)) {
+    _debugLog(_debug_tag, "[%s] Unmatched simple variable [%.*s] not in dict variable form",
+              __FUNCTION__, name.size(), name.data());
+    return EMPTY_STRING;
+  }
+  int dict_index = _searchHeaders(NORM_SPECIAL_HEADERS, header, header_len); // ignore the HTTP_ prefix
+  if (dict_index == -1) {
+    _debugLog(_debug_tag, "[%s] Dict variable [%.*s] refers to unknown dictionary",
+              __FUNCTION__, name.size(), name.data());
+    return EMPTY_STRING;
+  }
+
+  // change variable name to use only the attribute field
+  search_key.assign(attr, attr_len);
+
+  iter = _dict_data[dict_index].find(search_key);
+
+  if (dict_index == HTTP_ACCEPT_LANGUAGE) {
+    _debugLog(_debug_tag, "[%s] Returning boolean literal for lang variable [%.*s]",
+              __FUNCTION__, search_key.size(), search_key.data());
+    return (iter == _dict_data[dict_index].end()) ? EMPTY_STRING : TRUE_STRING;
+  }
+  
+  if (iter != _dict_data[dict_index].end()) {
+    _debugLog(_debug_tag, "[%s] Found variable [%.*s] in %s dictionary with value [%.*s]",
+              __FUNCTION__, search_key.size(), search_key.data(), NORM_SPECIAL_HEADERS[dict_index].c_str(), 
+              iter->second.size(), iter->second.data());
+    return iter->second;
+  }
+
+  size_t cookie_part_divider = (dict_index == HTTP_COOKIE) ? search_key.find(';') : search_key.size();
+  if (cookie_part_divider && (cookie_part_divider < (search_key.size() - 1))) {
+    _debugLog(_debug_tag, "[%s] Cookie variable [%s] refers to sub cookie", 
+              __FUNCTION__, search_key.c_str());
+    return _getSubCookieValue(search_key, cookie_part_divider);
+  }
+  
+  _debugLog(_debug_tag, "[%s] Found no value for dict variable [%s]", __FUNCTION__, name.c_str());
+  return EMPTY_STRING;
+}
+
+void Variables::_parseSubCookies() {
+  StringHash & cookies = _dict_data[HTTP_COOKIE];
+  for (StringHash::const_iterator it_cookie=cookies.begin(); it_cookie != cookies.end(); ++it_cookie) {
+      const std::string & name = it_cookie->first;
+      const std::string & value = it_cookie->second;
+      if (strchr(value.c_str(), '=') == NULL) {
+          continue;
+      }
+
+      StringHash & subcookies = _sub_cookies[name];
+      AttributeList attr_list;
+      Utils::parseAttributes(value.c_str(), value.length(), attr_list, "&");
+      for (AttributeList::iterator iter = attr_list.begin(); iter != attr_list.end(); ++iter) {
+          _debugLog(_debug_tag, "[%s] Inserting query string variable [%.*s] with value [%.*s]",
+                  __FUNCTION__, iter->name_len, iter->name, iter->value_len, iter->value);
+          _insert(subcookies, string(iter->name, iter->name_len),
+                  string(iter->value, iter->value_len));
+      }
+  }
+}
+
+const string &
+Variables::_getSubCookieValue(const string &cookie_str, size_t cookie_part_divider) const {
+  if (!_cookie_jar_created) {
+    if (_cookie_str.size() == 0) {
+      _debugLog(_debug_tag, "[%s] Cookie string empty; nothing to construct jar from", __FUNCTION__);
+      return EMPTY_STRING;
+    }
+
+    Variables &non_const_self = const_cast<Variables &>(*this); // same reasoning as in getValue()
+    non_const_self._parseSubCookies();
+    non_const_self._cookie_jar_created = true;
+  }
+
+  // we need to do this as we are going to manipulate the 'divider'
+  // character, and we don't need to create a copy of the string for
+  // that; hence this shortcut
+  string &non_const_cookie_str = const_cast<string &>(cookie_str);
+  StringHash::const_iterator it_part;
+    
+  non_const_cookie_str[cookie_part_divider] = '\0'; // make sure cookie name is NULL terminated
+  const char *cookie_name = non_const_cookie_str.data(); /* above NULL will take effect */
+  const char *part_name = non_const_cookie_str.c_str() + cookie_part_divider + 1;
+
+  StringKeyHash<StringHash>::const_iterator it_cookie = _sub_cookies.find(cookie_name);
+  if (it_cookie == _sub_cookies.end()) {
+      _debugLog(_debug_tag, "[%s] Could not find value for cookie [%s]", 
+              __FUNCTION__, cookie_name);
+      goto fail;
+  }
+
+  it_part = it_cookie->second.find(part_name);
+  if (it_part == it_cookie->second.end()) {
+      _debugLog(_debug_tag, "[%s] Could not find value for part [%s] of cookie [%.*s]", __FUNCTION__,
+              part_name, cookie_part_divider, cookie_name);
+      goto fail;
+  }
+
+  _debugLog(_debug_tag, "[%s] Got value [%s] for cookie name [%.*s] and part [%s]",
+          __FUNCTION__, it_part->second.c_str(), cookie_part_divider, cookie_name, part_name);
+
+  non_const_cookie_str[cookie_part_divider] = ';'; // restore before returning
+
+  this->_cached_sub_cookie_value.assign(it_part->second);
+  return this->_cached_sub_cookie_value;
+
+fail:
+  non_const_cookie_str[cookie_part_divider] = ';'; // restore before returning
+  return EMPTY_STRING;
+}
+
+void
+Variables::clear() {
+  _simple_data.clear();
+  for (int i = 0; i < N_SPECIAL_HEADERS; ++i) {
+    _dict_data[i].clear();
+    _cached_special_headers[i].clear();
+  }
+  for (int i = 0; i < N_SIMPLE_HEADERS; ++i) {
+    _cached_simple_headers[i].clear();
+  }
+  _query_string.clear();
+  _headers_parsed = _query_string_parsed = false;
+  _cookie_str.clear();
+  _releaseCookieJar();
+}
+
+void
+Variables::_parseCookieString(const char *str, int str_len) {
+  AttributeList cookies;
+  Utils::parseAttributes(str, str_len, cookies, ";,");
+  for (AttributeList::iterator iter = cookies.begin(); iter != cookies.end(); ++iter) {
+    _insert(_dict_data[HTTP_COOKIE], string(iter->name, iter->name_len), string(iter->value, iter->value_len));
+    _debugLog(_debug_tag, "[%s] Inserted cookie with name [%.*s] and value [%.*s]", __FUNCTION__,
+              iter->name_len, iter->name, iter->value_len, iter->value);
+  }
+}
+
+void
+Variables::_parseUserAgentString(const char */* str ATS_UNUSED */, int /* str_len ATS_UNUSED */) {
+  /*
+  string user_agent_str(str, str_len); // need NULL-terminated version
+  // TODO - code was here
+  char version_buf[64];
+  // TODO - code was here
+  _insert(_dict_data[HTTP_USER_AGENT], VERSION_STRING, version_buf);
+  */
+}
+
+void
+Variables::_parseAcceptLangString(const char *str, int str_len) {
+  int i;
+  for(i = 0; (i < str_len) && ((isspace(str[i]) || str[i] == ',')); ++i);
+  const char *lang = str + i;
+  int lang_len;
+  for (; i <= str_len; ++i) {
+    if ((i == str_len) || (str[i] == ',')) {
+      lang_len = str + i - lang;
+      for (; lang_len && isspace(lang[lang_len - 1]); --lang_len);
+      if (lang_len) {
+        _insert(_dict_data[HTTP_ACCEPT_LANGUAGE], string(lang, lang_len), EMPTY_STRING);
+        _debugLog(_debug_tag, "[%s] Added language [%.*s]", __FUNCTION__, lang_len, lang);
+      }
+      for(; (i < str_len) && ((isspace(str[i]) || str[i] == ',')); ++i);
+      lang = str + i;
+    }
+  }
+}
+
+bool
+Variables::_parseDictVariable(const std::string &variable, const char *&header, int &header_len,
+                              const char *&attr, int &attr_len) const {
+  const char *var_ptr = variable.data();
+  int var_size = variable.size();
+  if ((var_size <= 4) || (variable[var_size - 1] != '}')) {
+    return false;
+  }
+  int paranth_index = -1;
+  for (int i = 0; i < (var_size - 1); ++i) {
+    if (variable[i] == '{') {
+      if (paranth_index != -1) {
+        _debugLog(_debug_tag, "[%s] Cannot have multiple paranthesis in dict variable [%.*s]",
+                  __FUNCTION__, var_size, var_ptr);
+        return false;
+      }
+      paranth_index = i;
+    }
+    if (variable[i] == '}') {
+      _debugLog(_debug_tag, "[%s] Cannot have multiple paranthesis in dict variable [%.*s]",
+                __FUNCTION__, var_size, var_ptr);
+      return false;
+    }
+  }
+  if (paranth_index == -1) {
+    _debugLog(_debug_tag, "[%s] Could not find opening paranthesis in variable [%.*s]",
+              __FUNCTION__, var_size, var_ptr);
+    return false;
+  }
+  if (paranth_index == 0) {
+    _debugLog(_debug_tag, "[%s] Dict variable has no dict name [%.*s]",
+              __FUNCTION__, var_size, var_ptr);
+    return false;
+  }
+  if (paranth_index == (var_size - 2)) {
+    _debugLog(_debug_tag, "[%s] Dict variable has no attribute name [%.*s]",
+              __FUNCTION__, var_size, var_ptr);
+    return false;
+  }
+  header = var_ptr;
+  header_len = paranth_index;
+  attr = var_ptr + paranth_index + 1;
+  attr_len = var_size - header_len - 2;
+  return true;
+}
diff --git a/plugins/experimental/esi/lib/Variables.h b/plugins/experimental/esi/lib/Variables.h
new file mode 100644
index 00000000..6462662b
--- /dev/null
+++ b/plugins/experimental/esi/lib/Variables.h
@@ -0,0 +1,161 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_VARIABLES_H
+
+#define _ESI_VARIABLES_H
+
+#include <list>
+
+#include <cstring>
+#include "ComponentBase.h"
+#include "StringHash.h"
+#include "HttpHeader.h"
+
+namespace EsiLib {
+
+class Variables : private ComponentBase {
+
+public:
+
+  Variables(const char *debug_tag, ComponentBase::Debug debug_func, ComponentBase::Error error_func)
+    : ComponentBase(debug_tag, debug_func, error_func), _headers_parsed(false), _query_string(""),
+      _query_string_parsed(false), _cookie_jar_created(false) { };
+  
+  /** currently 'host', 'referer', 'accept-language', 'cookie' and 'user-agent' headers are parsed */
+  void populate(const HttpHeader &header);
+
+  void populate(const HttpHeaderList &headers) {
+    for (HttpHeaderList::const_iterator iter = headers.begin(); iter != headers.end(); ++iter) {
+      populate(*iter);
+    }
+  };
+
+  void populate(const char *query_string, int query_string_len = -1) {
+    if (query_string && (query_string_len != 0)) {
+      if (query_string_len == -1) {
+        query_string_len = strlen(query_string);
+      }
+      if (_query_string_parsed) {
+        _parseQueryString(query_string, query_string_len);
+      } else {
+        _query_string.assign(query_string, query_string_len);
+      }
+    }
+  }
+
+  /** returns value of specified variable; empty string returned for unknown variable; key
+   * has to be prefixed with 'http_' string for all variable names except 'query_string' */
+  const std::string &getValue(const std::string &name) const;
+
+  /** convenient alternative for method above */
+  const std::string &getValue(const char *name, int name_len = -1) const {
+    if (!name) {
+      return EMPTY_STRING;
+    }
+    std::string var_name;
+    if (name_len == -1) {
+      var_name.assign(name);
+    } else {
+      var_name.assign(name, name_len);
+    }
+    return getValue(var_name);
+  }
+
+  void clear();
+
+  virtual ~Variables() { _releaseCookieJar(); };
+
+private:
+
+  Variables(const Variables&); // non-copyable
+  Variables& operator=(const Variables&); // non-copyable
+
+  static const std::string EMPTY_STRING;
+  static const std::string TRUE_STRING;
+  static const std::string VENDOR_STRING;
+  static const std::string VERSION_STRING;
+  static const std::string PLATFORM_STRING;
+
+  enum SimpleHeader { HTTP_HOST = 0, HTTP_REFERER = 1 };
+  static const std::string SIMPLE_HEADERS[];  // indices should map to enum values above
+
+  enum SpecialHeader { HTTP_ACCEPT_LANGUAGE = 0, HTTP_COOKIE = 1, HTTP_USER_AGENT = 2, QUERY_STRING = 3 };
+  static const std::string SPECIAL_HEADERS[];  // indices should map to enum values above
+
+  // normalized versions of the headers above; indices should correspond correctly
+  static const std::string NORM_SIMPLE_HEADERS[];
+  static const std::string NORM_SPECIAL_HEADERS[]; // indices should again map to enum values
+
+  static const int N_SIMPLE_HEADERS = HTTP_REFERER + 1;
+  static const int N_SPECIAL_HEADERS = QUERY_STRING + 1;
+
+  StringHash _simple_data;
+  StringHash _dict_data[N_SPECIAL_HEADERS];
+
+  inline std::string &_toUpperCase(std::string &str) const;
+  inline int _searchHeaders(const std::string headers[], const char *name, int name_len) const;
+  bool _parseDictVariable(const std::string &variable, const char *&header, int &header_len,
+                                 const char *&attr, int &attr_len) const;
+  void _parseCookieString(const char *str, int str_len);
+  void _parseUserAgentString(const char *str, int str_len);
+  void _parseAcceptLangString(const char *str, int str_len);
+  inline void _parseSimpleHeader(SimpleHeader hdr, const std::string &value);
+  inline void _parseSimpleHeader(SimpleHeader hdr, const char *value, int value_len);
+  void _parseSpecialHeader(SpecialHeader hdr, const char *value, int value_len);
+  void _parseCachedHeaders();
+
+  inline void _insert(StringHash &hash, const std::string &key, const std::string &value);
+
+  typedef std::list<std::string> HeaderValueList;
+  HeaderValueList _cached_simple_headers[N_SIMPLE_HEADERS];
+  HeaderValueList _cached_special_headers[N_SPECIAL_HEADERS];
+  
+  std::string _cookie_str;
+  bool _headers_parsed;
+  std::string _query_string;
+  bool _query_string_parsed;
+
+  void _parseHeader(const char *name, int name_len, const char *value, int value_len);
+  void _parseQueryString(const char *query_string, int query_string_len);
+ 
+  StringKeyHash<StringHash> _sub_cookies;
+  bool _cookie_jar_created;
+
+  void _parseSubCookies();
+
+  inline void _releaseCookieJar() {
+    if (_cookie_jar_created) {
+      _sub_cookies.clear();
+      _cookie_jar_created = false;
+    }
+  }
+
+  mutable std::string _cached_sub_cookie_value;
+  const std::string &_getSubCookieValue(const std::string &cookie_str, size_t cookie_part_divider) const;
+
+};
+
+};
+
+#endif // _ESI_VARIABLES_H
diff --git a/plugins/experimental/esi/lib/gzip.cc b/plugins/experimental/esi/lib/gzip.cc
new file mode 100644
index 00000000..9a38ce4f
--- /dev/null
+++ b/plugins/experimental/esi/lib/gzip.cc
@@ -0,0 +1,197 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include "gzip.h"
+#include <zlib.h>
+
+#include "Utils.h"
+
+using namespace EsiLib;
+using std::string;
+
+template<typename T>
+inline void append(string &out, T data) {
+  for (unsigned int i = 0; i < sizeof(data); ++i) {
+    out += static_cast<char>(data & 0xff);
+    data = data >> 8;
+  }
+}
+
+template<typename T>
+inline void extract(const char *in, T &data) {
+  data = 0;
+  for (int i = (sizeof(data) - 1); i >= 0; --i) {
+    data = data << 8;
+    data = data | static_cast<unsigned char>(*(in + i));
+  }
+}
+
+inline int runDeflateLoop(z_stream &zstrm, int flush, std::string &cdata) {
+  char buf[BUF_SIZE];
+  int deflate_result = Z_OK;
+  do {
+    zstrm.next_out = reinterpret_cast<Bytef *>(buf);
+    zstrm.avail_out = BUF_SIZE;
+    deflate_result = deflate(&zstrm, flush);
+    if ((deflate_result == Z_OK) || (deflate_result == Z_STREAM_END)) {
+      cdata.append(buf, BUF_SIZE - zstrm.avail_out);
+      if ((deflate_result == Z_STREAM_END) || zstrm.avail_out) {
+        break;
+      }
+    } else {
+      break;
+    }
+  } while (true);
+  return deflate_result;
+}
+
+bool
+EsiLib::gzip(const ByteBlockList& blocks, std::string &cdata) {
+  cdata.assign(GZIP_HEADER_SIZE, 0); // reserving space for the header
+  z_stream zstrm;
+  zstrm.zalloc = Z_NULL;
+  zstrm.zfree = Z_NULL;
+  zstrm.opaque = Z_NULL;
+  if (deflateInit2(&zstrm, COMPRESSION_LEVEL, Z_DEFLATED, -MAX_WBITS,
+                   ZLIB_MEM_LEVEL, Z_DEFAULT_STRATEGY) != Z_OK) {
+    Utils::ERROR_LOG("[%s] deflateInit2 failed!", __FUNCTION__);
+    return false;
+  }
+
+  int total_data_len = 0;
+  uLong crc = crc32(0, Z_NULL, 0);
+  int deflate_result = Z_OK;
+  int in_data_size = 0;
+  for (ByteBlockList::const_iterator iter = blocks.begin(); iter != blocks.end(); ++iter) {
+    if (iter->data && (iter->data_len > 0)) {
+      zstrm.next_in = reinterpret_cast<Bytef *>(const_cast<char *>(iter->data));
+      zstrm.avail_in = iter->data_len;
+      in_data_size += iter->data_len;
+      deflate_result = runDeflateLoop(zstrm, 0, cdata);
+      if (deflate_result != Z_OK) {
+        break; // break out of the blocks iteration
+      }
+      crc = crc32(crc, reinterpret_cast<const Bytef *>(iter->data), iter->data_len);
+      total_data_len += iter->data_len;
+    }
+  }
+  if (!in_data_size) {
+      zstrm.avail_in = 0; // required for the "finish" loop as no data has been given so far
+  }
+  if (deflate_result == Z_OK) {
+    deflate_result = runDeflateLoop(zstrm, Z_FINISH, cdata);
+  }
+  deflateEnd(&zstrm);
+  if (deflate_result != Z_STREAM_END) {
+    Utils::ERROR_LOG("[%s] Failure while deflating; error code %d", __FUNCTION__, deflate_result);
+    return false;
+  }
+  cdata[0] = MAGIC_BYTE_1;
+  cdata[1] = MAGIC_BYTE_2;
+  cdata[2] = Z_DEFLATED;
+  cdata[9] = OS_TYPE;
+  append(cdata, static_cast<uint32_t>(crc));
+  append(cdata, static_cast<int32_t>(total_data_len));
+  return true;
+}
+
+bool
+EsiLib::gunzip(const char *data, int data_len, BufferList &buf_list) {
+  if (!data || (data_len <= (GZIP_HEADER_SIZE + GZIP_TRAILER_SIZE))) {
+    Utils::ERROR_LOG("[%s] Invalid arguments: 0x%p, %d", __FUNCTION__, data, data_len);
+    return false;
+  }
+  if ((data[0] != MAGIC_BYTE_1) || (data[1] != MAGIC_BYTE_2) || (data[2] != Z_DEFLATED) ||
+      (data[9] != OS_TYPE)) {
+    Utils::ERROR_LOG("[%s] Header check failed!", __FUNCTION__);
+    return false;
+  }
+  data += GZIP_HEADER_SIZE;
+  data_len -= (GZIP_HEADER_SIZE + GZIP_TRAILER_SIZE);
+  buf_list.clear();
+  z_stream zstrm;
+  zstrm.zalloc = Z_NULL;
+  zstrm.zfree = Z_NULL;
+  zstrm.opaque = Z_NULL;
+  zstrm.next_in = 0;
+  zstrm.avail_in = 0;
+  if (inflateInit2(&zstrm, -MAX_WBITS) != Z_OK) {
+    Utils::ERROR_LOG("[%s] inflateInit2 failed!", __FUNCTION__);
+    return false;
+  }
+  zstrm.next_in = reinterpret_cast<Bytef *>(const_cast<char *>(data));
+  zstrm.avail_in = data_len;
+  char raw_buf[BUF_SIZE];
+  int inflate_result;
+  int32_t unzipped_data_size = 0;
+  int32_t curr_buf_size;
+  uLong crc = crc32(0, Z_NULL, 0);
+  do {
+    zstrm.next_out = reinterpret_cast<Bytef *>(raw_buf);
+    zstrm.avail_out = BUF_SIZE;
+    inflate_result = inflate(&zstrm, Z_SYNC_FLUSH);
+    curr_buf_size = -1;
+    if ((inflate_result == Z_OK) || (inflate_result == Z_BUF_ERROR)) {
+      curr_buf_size = BUF_SIZE;
+    } else if (inflate_result == Z_STREAM_END) {
+      curr_buf_size = BUF_SIZE - zstrm.avail_out;
+    }
+    if (curr_buf_size > BUF_SIZE) {
+      Utils::ERROR_LOG("[%s] buf too large", __FUNCTION__);
+      break;
+    }
+    if (curr_buf_size < 1) {
+      Utils::ERROR_LOG("[%s] buf below zero", __FUNCTION__);
+      break;
+    }
+    unzipped_data_size += curr_buf_size;
+    crc = crc32(crc, reinterpret_cast<const Bytef *>(raw_buf), curr_buf_size);
+
+    // push empty object onto list and add data to in-list object to
+    // avoid data copy for temporary
+    buf_list.push_back(string());
+    string &curr_buf = buf_list.back();
+    curr_buf.assign(raw_buf, curr_buf_size); 
+
+    if (inflate_result == Z_STREAM_END) {
+      break;
+    }
+  } while (zstrm.avail_in > 0);
+  inflateEnd(&zstrm);
+  if (inflate_result != Z_STREAM_END) {
+    Utils::ERROR_LOG("[%s] Failure while inflating; error code %d", __FUNCTION__, inflate_result);
+    return false;
+  }
+  int32_t orig_size;
+  uint32_t orig_crc;
+  extract(data + data_len, orig_crc);
+  extract(data + data_len + 4, orig_size);
+  if ((crc != orig_crc) || (unzipped_data_size != orig_size)) {
+    Utils::ERROR_LOG("[%s] CRC/size error. Expecting (CRC, size) (0x%x, 0x%x); computed (0x%x, 0x%x)",
+                     __FUNCTION__, orig_crc, orig_size, crc, unzipped_data_size);
+    return false;
+  }
+  return true;
+}
diff --git a/plugins/experimental/esi/lib/gzip.h b/plugins/experimental/esi/lib/gzip.h
new file mode 100644
index 00000000..13906b80
--- /dev/null
+++ b/plugins/experimental/esi/lib/gzip.h
@@ -0,0 +1,69 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _GZIP_H
+
+#define _GZIP_H 
+
+#include <string>
+#include <list>
+
+// Defines for various GZIP constants
+static const int COMPRESSION_LEVEL = 6;
+static const int ZLIB_MEM_LEVEL = 8;
+
+static const int GZIP_HEADER_SIZE = 10;
+static const int GZIP_TRAILER_SIZE = 8;
+
+static const char MAGIC_BYTE_1 = 0x1f;
+static const char MAGIC_BYTE_2 = 0x8b;
+static const char OS_TYPE = 3; // Unix
+
+static const int BUF_SIZE = 1 << 15; // 32k buffer
+
+
+namespace EsiLib {
+
+struct ByteBlock {
+  const char *data;
+  int data_len;
+  ByteBlock(const char *d = 0, int d_len = 0) : data(d), data_len(d_len) { };
+};
+
+typedef std::list<ByteBlock> ByteBlockList;
+
+bool gzip(const ByteBlockList& blocks, std::string &cdata);
+
+inline bool gzip(const char *data, int data_len, std::string &cdata) {
+  ByteBlockList blocks;
+  blocks.push_back(ByteBlock(data, data_len));
+  return gzip(blocks, cdata);
+}
+
+typedef std::list<std::string> BufferList;
+
+bool gunzip(const char *data, int data_len, BufferList &buf_list);
+
+}
+
+#endif // _GZIP_H
diff --git a/plugins/experimental/esi/serverIntercept.cc b/plugins/experimental/esi/serverIntercept.cc
new file mode 100644
index 00000000..c8b46f51
--- /dev/null
+++ b/plugins/experimental/esi/serverIntercept.cc
@@ -0,0 +1,357 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_defs.h"
+#include "serverIntercept.h"
+
+#include <string>
+#include <limits.h>
+#include <strings.h>
+#include <stdio.h>
+
+const char *ECHO_HEADER_PREFIX = "Echo-";
+const int ECHO_HEADER_PREFIX_LEN = 5;
+const char *SERVER_INTERCEPT_HEADER = "Esi-Internal";
+const int SERVER_INTERCEPT_HEADER_LEN = 12;
+
+using std::string;
+
+#define DEBUG_TAG "plugin_esi_intercept"
+
+struct SContData {
+  TSVConn net_vc;
+  TSCont contp;
+
+  struct IoHandle {
+    TSVIO vio;
+    TSIOBuffer buffer;
+    TSIOBufferReader reader;
+    IoHandle()
+      : vio(0), buffer(0), reader(0) { };
+    ~IoHandle() {
+      if (reader) {
+        TSIOBufferReaderFree(reader);
+      }
+      if (buffer) {
+        TSIOBufferDestroy(buffer);
+      }
+    };
+  };
+
+  IoHandle input;
+  IoHandle output;
+
+  TSHttpParser http_parser;
+  string body;
+  int req_content_len;
+  TSMBuffer req_hdr_bufp;
+  TSMLoc req_hdr_loc;
+  bool req_hdr_parsed;
+  bool initialized;
+
+  SContData(TSCont cont) 
+    : net_vc(0), contp(cont), input(), output(), body(""), req_content_len(0), req_hdr_bufp(0), req_hdr_loc(0),
+      req_hdr_parsed(false), initialized(false) {
+    http_parser = TSHttpParserCreate();
+  }
+
+  bool init(TSVConn vconn);
+
+  void setupWrite();
+
+  ~SContData() {
+    TSDebug(DEBUG_TAG, "[%s] Destroying continuation data", __FUNCTION__);
+    TSHttpParserDestroy(http_parser); 
+    if (req_hdr_loc) {
+      TSHandleMLocRelease(req_hdr_bufp, TS_NULL_MLOC, req_hdr_loc);
+    }
+    if (req_hdr_bufp) {
+      TSMBufferDestroy(req_hdr_bufp);
+    }
+  };
+};
+
+bool
+SContData::init(TSVConn vconn)
+{
+  if (initialized) {
+    TSError("[%s] SContData already initialized!", __FUNCTION__);
+    return false;
+  }
+  
+  net_vc = vconn;
+
+  input.buffer = TSIOBufferCreate();
+  input.reader = TSIOBufferReaderAlloc(input.buffer);
+  input.vio = TSVConnRead(net_vc, contp, input.buffer, INT_MAX);
+
+  req_hdr_bufp = TSMBufferCreate();
+  req_hdr_loc = TSHttpHdrCreate(req_hdr_bufp);
+  TSHttpHdrTypeSet(req_hdr_bufp, req_hdr_loc, TS_HTTP_TYPE_REQUEST);
+
+  initialized = true;
+  TSDebug(DEBUG_TAG, "[%s] SContData initialized!", __FUNCTION__);
+  return true;
+}
+
+void
+SContData::setupWrite() {
+  TSAssert(output.buffer == 0);
+  output.buffer = TSIOBufferCreate();
+  output.reader = TSIOBufferReaderAlloc(output.buffer);
+  output.vio = TSVConnWrite(net_vc, contp, output.reader, INT_MAX);
+}
+
+static bool
+handleRead(SContData *cont_data, bool &read_complete) {
+  int avail = TSIOBufferReaderAvail(cont_data->input.reader);
+  if (avail == TS_ERROR) {
+    TSError("[%s] Error while getting number of bytes available", __FUNCTION__);
+    return false;
+  }
+  
+          TSDebug(DEBUG_TAG, "[%s] Parsed header, avail: %d", __FUNCTION__, avail);
+
+  int consumed = 0;
+  if (avail > 0) {
+    int64_t data_len;
+    const char *data;
+    TSIOBufferBlock block = TSIOBufferReaderStart(cont_data->input.reader);
+    while (block != NULL) {
+      data = TSIOBufferBlockReadStart(block, cont_data->input.reader, &data_len);
+      if (!cont_data->req_hdr_parsed) {
+        const char *endptr = data + data_len;
+        if (TSHttpHdrParseReq(cont_data->http_parser, cont_data->req_hdr_bufp, cont_data->req_hdr_loc,
+                               &data, endptr) == TS_PARSE_DONE) {
+          TSDebug(DEBUG_TAG, "[%s] Parsed header", __FUNCTION__);
+          TSMLoc content_len_loc = TSMimeHdrFieldFind(cont_data->req_hdr_bufp, cont_data->req_hdr_loc,
+                                                        TS_MIME_FIELD_CONTENT_LENGTH, -1);
+          if (!content_len_loc) {
+            TSError("[%s] Error while searching content length header [%s]",
+                     __FUNCTION__, TS_MIME_FIELD_CONTENT_LENGTH);
+            return false;
+          }
+          if (!content_len_loc) {
+            TSError("[%s] request doesn't contain content length header [%s]",
+                     __FUNCTION__, TS_MIME_FIELD_CONTENT_TYPE);
+            return false;
+          }
+          cont_data->req_content_len=TSMimeHdrFieldValueIntGet(cont_data->req_hdr_bufp, cont_data->req_hdr_loc,
+                                         content_len_loc, 0);
+          TSHandleMLocRelease(cont_data->req_hdr_bufp, cont_data->req_hdr_loc, content_len_loc);
+          TSDebug(DEBUG_TAG, "[%s] Got content length as %d", __FUNCTION__, cont_data->req_content_len);
+          if (cont_data->req_content_len <= 0) {
+            TSError("[%s] Invalid content length [%d]", __FUNCTION__, cont_data->req_content_len);
+            return false;
+          }
+          if (endptr - data) {
+            TSDebug(DEBUG_TAG, "[%s] Appending %ld bytes to body", __FUNCTION__, static_cast<long int>(endptr - data));
+            cont_data->body.append(data, endptr - data);
+          }
+          cont_data->req_hdr_parsed = true;
+        }
+      } else {
+        TSDebug(DEBUG_TAG, "[%s] Appending %" PRId64" bytes to body", __FUNCTION__, data_len);
+        cont_data->body.append(data, data_len);
+      }
+      consumed += data_len;
+      block = TSIOBufferBlockNext(block);
+    }
+  }
+  
+  TSIOBufferReaderConsume(cont_data->input.reader, consumed);
+
+  TSDebug(DEBUG_TAG, "[%s] Consumed %d bytes from input vio, avail: %d", __FUNCTION__, consumed, avail);
+  
+  // Modify the input VIO to reflect how much data we've completed.
+  TSVIONDoneSet(cont_data->input.vio, TSVIONDoneGet(cont_data->input.vio) + consumed);
+
+  if (static_cast<int>(cont_data->body.size()) == cont_data->req_content_len) {
+    TSDebug(DEBUG_TAG, "[%s] Completely read body of size %d", __FUNCTION__, cont_data->req_content_len);
+    read_complete = true;
+  } else {
+    read_complete = false;
+    TSDebug(DEBUG_TAG, "[%s] Reenabling input vio as %ld bytes still need to be read",
+             __FUNCTION__, static_cast<long int>(cont_data->req_content_len - cont_data->body.size()));
+    TSVIOReenable(cont_data->input.vio);
+  }
+  return true;
+}
+
+static bool
+processRequest(SContData *cont_data) {
+  string reply_header("HTTP/1.1 200 OK\r\n");
+  
+  TSMLoc field_loc = TSMimeHdrFieldGet(cont_data->req_hdr_bufp, cont_data->req_hdr_loc, 0);
+  while (field_loc) {
+    TSMLoc next_field_loc;
+    const char *name;
+    int name_len;
+    name = TSMimeHdrFieldNameGet(cont_data->req_hdr_bufp, cont_data->req_hdr_loc, field_loc, &name_len);
+    if (name) {
+      bool echo_header = false;
+      if ((name_len > ECHO_HEADER_PREFIX_LEN) &&
+          (strncasecmp(name, ECHO_HEADER_PREFIX, ECHO_HEADER_PREFIX_LEN) == 0)) {
+        echo_header = true;
+        reply_header.append(name + ECHO_HEADER_PREFIX_LEN, name_len - ECHO_HEADER_PREFIX_LEN);
+      } else if ((name_len == SERVER_INTERCEPT_HEADER_LEN) &&
+                 (strncasecmp(name, SERVER_INTERCEPT_HEADER, name_len) == 0)) {
+        echo_header = true;
+        reply_header.append(name, name_len);
+      }
+      if (echo_header) {
+        reply_header.append(": ");
+        int n_field_values = TSMimeHdrFieldValuesCount(cont_data->req_hdr_bufp, cont_data->req_hdr_loc,
+                                                        field_loc);
+        for (int i = 0; i < n_field_values; ++i) {
+          const char *value;
+          int value_len;
+          value=TSMimeHdrFieldValueStringGet(cont_data->req_hdr_bufp, cont_data->req_hdr_loc, field_loc,
+                                            i, &value_len);
+          if (!value_len) {
+            TSDebug(DEBUG_TAG, "[%s] Error while getting value #%d of header [%.*s]",
+                     __FUNCTION__, i, name_len, name);
+          } else {
+            if (reply_header[reply_header.size() - 2] != ':') {
+              reply_header.append(", ");
+            }
+            reply_header.append(value, value_len);
+          }
+        }
+        reply_header.append("\r\n");
+      }
+    }
+    next_field_loc = TSMimeHdrFieldNext(cont_data->req_hdr_bufp, cont_data->req_hdr_loc, field_loc);
+    TSHandleMLocRelease(cont_data->req_hdr_bufp, cont_data->req_hdr_loc, field_loc);
+    field_loc = next_field_loc;
+  }
+  
+  int body_size = static_cast<int>(cont_data->body.size());
+  if (cont_data->req_content_len != body_size) {
+    TSError("[%s] Read only %d bytes of body; expecting %d bytes", __FUNCTION__, body_size,
+             cont_data->req_content_len);
+  }
+
+  char buf[64];
+  snprintf(buf, 64, "%s: %d\r\n\r\n", TS_MIME_FIELD_CONTENT_LENGTH, body_size);
+  reply_header.append(buf);
+
+  //TSError("[%s] reply header: \n%s", __FUNCTION__, reply_header.data());
+
+  cont_data->setupWrite();
+  if (TSIOBufferWrite(cont_data->output.buffer, reply_header.data(), reply_header.size()) == TS_ERROR) {
+    TSError("[%s] Error while writing reply header", __FUNCTION__);
+    return false;
+  }
+  if (TSIOBufferWrite(cont_data->output.buffer, cont_data->body.data(), body_size) == TS_ERROR) {
+    TSError("[%s] Error while writing content", __FUNCTION__);
+    return false;
+  }
+  int total_bytes_written = reply_header.size() + body_size;
+  TSDebug(DEBUG_TAG, "[%s] Wrote reply of size %d", __FUNCTION__, total_bytes_written);
+  TSVIONBytesSet(cont_data->output.vio, total_bytes_written);
+  
+  TSVIOReenable(cont_data->output.vio);
+  return true;
+}
+
+static int
+serverIntercept(TSCont contp, TSEvent event, void *edata) {
+    TSDebug(DEBUG_TAG, "[%s] Received event: %d", __FUNCTION__, (int)event);
+
+  SContData *cont_data = static_cast<SContData *>(TSContDataGet(contp));
+  bool read_complete = false;
+  bool shutdown = false;
+  switch (event) {
+  case TS_EVENT_NET_ACCEPT:
+    TSDebug(DEBUG_TAG, "[%s] Received net accept event", __FUNCTION__);
+    TSAssert(cont_data->initialized == false);
+    if (!cont_data->init(static_cast<TSVConn>(edata))) {
+      TSError("[%s] Could not initialize continuation data!", __FUNCTION__);
+      return 1;
+    }
+    break;
+  case TS_EVENT_VCONN_READ_READY:
+    TSDebug(DEBUG_TAG, "[%s] Received read ready event", __FUNCTION__);
+    if (!handleRead(cont_data, read_complete)) {
+      TSError("[%s] Error while reading from input vio", __FUNCTION__);
+      return 0;
+    }
+    break;
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+    // intentional fall-through
+    TSDebug(DEBUG_TAG, "[%s] Received read complete/eos event %d", __FUNCTION__, event);
+    read_complete = true;
+    break;
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSDebug(DEBUG_TAG, "[%s] Received write ready event", __FUNCTION__);
+    break;
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug(DEBUG_TAG, "[%s] Received write complete event", __FUNCTION__);
+    shutdown = true;
+    break;
+  case TS_EVENT_ERROR:
+    // todo: do some error handling here
+    TSError("[%s] Received error event; going to shutdown, event: %d", __FUNCTION__, event);
+    shutdown = true;
+    break;
+  default:
+    break;
+  }
+
+  if (read_complete) {
+    if (!processRequest(cont_data)) {
+      TSError("[%s] Failed to process process", __FUNCTION__);
+    } else {
+      TSDebug(DEBUG_TAG, "[%s] Processed request successfully", __FUNCTION__);
+    }
+  }
+
+  if (shutdown) {
+    TSDebug(DEBUG_TAG, "[%s] Completed request processing. Shutting down...", __FUNCTION__);
+    if (cont_data->net_vc) {
+      TSVConnClose(cont_data->net_vc);
+    }
+    delete cont_data;
+    TSContDestroy(contp);
+  }
+
+  return 1;
+}
+
+bool
+setupServerIntercept(TSHttpTxn txnp) {
+  TSCont contp = TSContCreate(serverIntercept, TSMutexCreate());
+  if (!contp) {
+    TSError("[%s] Could not create intercept request", __FUNCTION__);
+    return false;
+  }
+  SContData *cont_data = new SContData(contp);
+  TSContDataSet(contp, cont_data);
+  TSHttpTxnServerIntercept(contp, txnp);
+  TSHttpTxnReqCacheableSet(txnp, 1);
+  TSHttpTxnRespCacheableSet(txnp, 1);
+  TSDebug(DEBUG_TAG, "[%s] Setup server intercept successfully", __FUNCTION__);
+  return true;
+}
diff --git a/plugins/experimental/esi/serverIntercept.h b/plugins/experimental/esi/serverIntercept.h
new file mode 100644
index 00000000..0e4145ff
--- /dev/null
+++ b/plugins/experimental/esi/serverIntercept.h
@@ -0,0 +1,38 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ESI_SERVER_INTERCEPT_H
+
+#define _ESI_SERVER_INTERCEPT_H
+
+#include "ts/ts.h"
+
+bool setupServerIntercept(TSHttpTxn txnp);
+
+extern const char *ECHO_HEADER_PREFIX;
+extern const char *SERVER_INTERCEPT_HEADER;
+
+extern const int ECHO_HEADER_PREFIX_LEN;
+extern const int SERVER_INTERCEPT_HEADER_LEN;
+
+#endif
diff --git a/plugins/experimental/esi/test/HandlerMap.cc b/plugins/experimental/esi/test/HandlerMap.cc
new file mode 100644
index 00000000..9f2bad0f
--- /dev/null
+++ b/plugins/experimental/esi/test/HandlerMap.cc
@@ -0,0 +1,26 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HandlerMap.h"
+
+HandlerMap gHandlerMap;
diff --git a/plugins/experimental/esi/test/HandlerMap.h b/plugins/experimental/esi/test/HandlerMap.h
new file mode 100644
index 00000000..faaf6690
--- /dev/null
+++ b/plugins/experimental/esi/test/HandlerMap.h
@@ -0,0 +1,37 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _HANDLER_MAP_H
+
+#define _HANDLER_MAP_H
+
+#include <string>
+#include <map>
+
+#include "StubIncludeHandler.h"
+
+typedef std::map<std::string, StubIncludeHandler *> HandlerMap;
+
+extern HandlerMap gHandlerMap;
+
+#endif
diff --git a/plugins/experimental/esi/test/StubIncludeHandler.cc b/plugins/experimental/esi/test/StubIncludeHandler.cc
new file mode 100644
index 00000000..4c6798d1
--- /dev/null
+++ b/plugins/experimental/esi/test/StubIncludeHandler.cc
@@ -0,0 +1,73 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include <stdio.h>
+#include "StubIncludeHandler.h"
+#include "TestHttpDataFetcher.h"
+
+using namespace EsiLib;
+
+bool StubIncludeHandler::includeResult = true;
+const char *const StubIncludeHandler::DATA_PREFIX = "Special data for include id ";
+const int StubIncludeHandler::DATA_PREFIX_SIZE = strlen(StubIncludeHandler::DATA_PREFIX);
+
+const char *StubIncludeHandler::FOOTER = 0;
+int StubIncludeHandler::FOOTER_SIZE = 0;
+
+int
+StubIncludeHandler::handleInclude(const char *data, int data_len) {
+  if (includeResult) {
+    _http_fetcher.addFetchRequest(data, data_len);
+    return ++n_includes;
+  }
+  return -1;
+}
+
+void
+StubIncludeHandler::handleParseComplete() {
+  parseCompleteCalled = true;
+}
+  
+bool
+StubIncludeHandler::getData(int include_id, const char *&data, int &data_len) {
+  TestHttpDataFetcher &test_fetcher = dynamic_cast<TestHttpDataFetcher &>(_http_fetcher);
+  if (test_fetcher.getReturnData()) {
+    char *buf = new char[1024];
+    data_len = snprintf(buf, 1024, "%s%d", DATA_PREFIX, include_id);
+    data = buf;
+    heap_strings.push_back(buf);
+    return true;
+  }
+  return false;
+}
+
+void
+StubIncludeHandler::getFooter(const char *&footer, int &footer_len) {
+  footer = FOOTER;
+  footer_len = FOOTER_SIZE;
+}
+  
+StubIncludeHandler::~StubIncludeHandler() {
+  for (std::list<char *>::iterator iter = heap_strings.begin(); iter != heap_strings.end(); ++iter) {
+    delete[] *iter;
+  }
+}
diff --git a/plugins/experimental/esi/test/StubIncludeHandler.h b/plugins/experimental/esi/test/StubIncludeHandler.h
new file mode 100644
index 00000000..576834bd
--- /dev/null
+++ b/plugins/experimental/esi/test/StubIncludeHandler.h
@@ -0,0 +1,66 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _STUB_INCLUDE_HANDLER_H
+
+#define _STUB_INCLUDE_HANDLER_H
+
+#include <list>
+#include "SpecialIncludeHandler.h"
+
+class StubIncludeHandler : public EsiLib::SpecialIncludeHandler {
+
+public:
+
+  StubIncludeHandler(EsiLib::Variables &esi_vars, EsiLib::Expression &esi_expr, 
+                     HttpDataFetcher &http_fetcher)
+    : EsiLib::SpecialIncludeHandler(esi_vars, esi_expr, http_fetcher),
+      parseCompleteCalled(false), n_includes(0) {
+  }
+
+  int handleInclude(const char *data, int data_len);
+
+  bool parseCompleteCalled;
+  void handleParseComplete();
+  
+  bool getData(int include_id, const char *&data, int &data_len);
+
+  void getFooter(const char *&footer, int &footer_len);
+  
+  ~StubIncludeHandler();
+  
+  static bool includeResult;
+  static const char *const DATA_PREFIX;
+  static const int DATA_PREFIX_SIZE;
+
+  static const char *FOOTER;
+  static int FOOTER_SIZE;
+
+private:
+
+  int n_includes;
+  std::list<char *> heap_strings;
+
+};
+
+#endif
diff --git a/plugins/experimental/esi/test/TestHandlerManager.cc b/plugins/experimental/esi/test/TestHandlerManager.cc
new file mode 100644
index 00000000..9d854711
--- /dev/null
+++ b/plugins/experimental/esi/test/TestHandlerManager.cc
@@ -0,0 +1,42 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HandlerManager.h"
+#include "HandlerMap.h"
+
+using namespace EsiLib;
+
+void
+HandlerManager::loadObjects(const Utils::KeyValueMap & /* handlers ATS_UNUSED */) {
+}
+
+SpecialIncludeHandler *
+HandlerManager::getHandler(Variables &esi_vars, Expression &esi_expr, HttpDataFetcher &fetcher,
+                           const std::string &id) const {
+  StubIncludeHandler *handler = new StubIncludeHandler(esi_vars, esi_expr, fetcher);
+  gHandlerMap[id] = handler;
+  return handler;
+}
+
+HandlerManager::~HandlerManager() {
+}
diff --git a/plugins/experimental/esi/test/TestHttpDataFetcher.h b/plugins/experimental/esi/test/TestHttpDataFetcher.h
new file mode 100644
index 00000000..1df387ee
--- /dev/null
+++ b/plugins/experimental/esi/test/TestHttpDataFetcher.h
@@ -0,0 +1,79 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _TEST_HTTP_DATA_FETCHER_H
+#define _TEST_HTTP_DATA_FETCHER_H
+
+#include <string>
+
+#include "HttpDataFetcher.h"
+
+class TestHttpDataFetcher : public HttpDataFetcher
+{
+  
+public:
+  
+  TestHttpDataFetcher() :  _n_pending_requests(0), _return_data(true) { }
+  
+  bool addFetchRequest(const std::string &url, FetchedDataProcessor *callback_obj = 0) {
+    ++_n_pending_requests;
+    return true;
+  }
+
+  DataStatus getRequestStatus(const std::string &url) const {
+    if (_return_data) {
+      return STATUS_DATA_AVAILABLE;
+    }
+    --(const_cast<int &>(_n_pending_requests));
+    return STATUS_ERROR;
+  }
+
+  int getNumPendingRequests() const { return _n_pending_requests; };
+
+  bool getContent(const std::string &url, const char *&content, int &content_len) const {
+    TestHttpDataFetcher &curr_obj = const_cast<TestHttpDataFetcher &>(*this);
+    --curr_obj._n_pending_requests;
+    if (_return_data) {
+      curr_obj._data.clear();
+      curr_obj._data.append(">>>>> Content for URL [");
+      curr_obj._data.append(url);
+      curr_obj._data.append("] <<<<<");
+      content = curr_obj._data.data();
+      content_len = curr_obj._data.size();
+      return true;
+    }
+    return false;
+  }
+
+  void setReturnData(bool rd) { _return_data = rd; };
+
+  bool getReturnData() const { return _return_data; };
+
+private:
+  int _n_pending_requests;
+  std::string _data;
+  bool _return_data;
+  
+};
+
+#endif
diff --git a/plugins/experimental/esi/test/docnode_test.cc b/plugins/experimental/esi/test/docnode_test.cc
new file mode 100644
index 00000000..19967d8f
--- /dev/null
+++ b/plugins/experimental/esi/test/docnode_test.cc
@@ -0,0 +1,249 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <assert.h>
+#include <string>
+
+#include "EsiParser.h"
+#include "print_funcs.h"
+#include "Utils.h"
+
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::string;
+using namespace EsiLib;
+
+void check_node_attr(const Attribute &attr, const char *name, const char *value) {
+  int name_len = strlen(name);
+  int value_len = strlen(value);
+  assert(attr.name_len == name_len);
+  assert(attr.value_len == value_len);
+  assert(strncmp(attr.name, name, name_len) == 0);
+  assert(strncmp(attr.value, value, value_len) == 0);
+}
+
+void checkNodeList1(const DocNodeList &node_list) {
+  DocNodeList::const_iterator list_iter = node_list.begin();
+  assert(list_iter->type == DocNode::TYPE_PRE);
+  assert(list_iter->data_len == 4);
+  assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+  ++list_iter;
+  assert(list_iter->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter->data_len == 0);
+  assert(list_iter->attr_list.size() == 1);
+  check_node_attr(list_iter->attr_list.front(), "src", "blah");
+  ++list_iter;
+  assert(list_iter->type == DocNode::TYPE_PRE);
+  assert(list_iter->data_len == 4);
+  assert(strncmp(list_iter->data, " bar", list_iter->data_len) == 0);
+  assert((list_iter->child_nodes).size() == 0);
+}
+
+void checkNodeList2(const DocNodeList &node_list) {
+  assert(node_list.size() == 1);
+  DocNodeList::const_iterator list_iter = node_list.begin(), list_iter2, list_iter3;
+  assert(list_iter->type == DocNode::TYPE_CHOOSE);
+
+  list_iter2 = list_iter->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_WHEN);
+  assert(list_iter2->attr_list.size() == 1);
+  check_node_attr(list_iter2->attr_list.front(), "test", "c1");
+  list_iter2 = list_iter2->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_TRY);
+  list_iter2 = list_iter2->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+  assert(list_iter2->child_nodes.size() == 2);
+  list_iter3 = list_iter2->child_nodes.begin();
+  assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter3->data_len == 0);
+  assert(list_iter3->attr_list.size() == 1);
+  check_node_attr(list_iter3->attr_list.front(), "src", "foo1");
+  ++list_iter3;
+  assert(list_iter3->type == DocNode::TYPE_PRE);
+  assert(list_iter3->data_len == static_cast<int>(strlen("raw1")));
+  assert(strncmp(list_iter3->data, "raw1", list_iter3->data_len) == 0);
+  ++list_iter2;
+  assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+  list_iter3 = list_iter2->child_nodes.begin();
+  assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter3->data_len == 0);
+  assert(list_iter3->attr_list.size() == 1);
+  check_node_attr(list_iter3->attr_list.front(), "src", "bar1");
+
+  list_iter2 = list_iter->child_nodes.begin();
+  ++list_iter2;
+  assert(list_iter2->type == DocNode::TYPE_WHEN);
+  assert(list_iter2->attr_list.size() == 1);
+  check_node_attr(list_iter2->attr_list.front(), "test", "c2");
+  list_iter2 = list_iter2->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_TRY);
+  list_iter2 = list_iter2->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+  list_iter3 = list_iter2->child_nodes.begin();
+  assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter3->data_len == 0);
+  assert(list_iter3->attr_list.size() == 1);
+  check_node_attr(list_iter3->attr_list.front(), "src", "foo2");
+  ++list_iter2;
+  assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+  assert(list_iter2->child_nodes.size() == 2);
+  list_iter3 = list_iter2->child_nodes.begin();
+  assert(list_iter3->type == DocNode::TYPE_PRE);
+  assert(list_iter3->data_len == static_cast<int>(strlen("raw2")));
+  assert(strncmp(list_iter3->data, "raw2", list_iter3->data_len) == 0);
+  ++list_iter3;
+  assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter3->data_len == 0);
+  assert(list_iter3->attr_list.size() == 1);
+  check_node_attr(list_iter3->attr_list.front(), "src", "bar2");
+
+  list_iter2 = list_iter->child_nodes.begin();
+  ++list_iter2;
+  ++list_iter2;
+  assert(list_iter2->type == DocNode::TYPE_OTHERWISE);
+  assert(list_iter2->attr_list.size() == 0);
+  list_iter2 = list_iter2->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_TRY);
+  list_iter2 = list_iter2->child_nodes.begin();
+  assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+  list_iter3 = list_iter2->child_nodes.begin();
+  assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter3->data_len == 0);
+  assert(list_iter3->attr_list.size() == 1);
+  check_node_attr(list_iter3->attr_list.front(), "src", "foo3");
+  ++list_iter2;
+  assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+  list_iter3 = list_iter2->child_nodes.begin();
+  assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+  assert(list_iter3->data_len == 0);
+  assert(list_iter3->attr_list.size() == 1);
+  check_node_attr(list_iter3->attr_list.front(), "src", "bar3");
+}
+
+pthread_key_t threadKey;
+
+int main() 
+{
+  pthread_key_create(&threadKey, NULL);
+  Utils::init(&Debug, &Error);
+  
+  {
+    cout << endl << "==================== Test 1" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "foo <esi:include src=blah /> bar";
+
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    checkNodeList1(node_list);
+    assert(node_list.size() == 3);
+    string packed = node_list.pack();
+    node_list.clear();
+
+    DocNodeList node_list2;
+    assert(node_list2.unpack(packed) == true);
+    assert(node_list2.size() == 3);
+    checkNodeList1(node_list2);
+
+    DocNodeList node_list3;
+    assert(node_list3.unpack(0, 90) == false);
+    assert(node_list3.unpack(packed.data(), 3) == false);
+    *(reinterpret_cast<int *>(&packed[0])) = -1;
+    assert(node_list3.unpack(packed) == true);
+    assert(node_list3.size() == 0);
+    *(reinterpret_cast<int *>(&packed[0])) = 3;
+    
+    DocNodeList node_list4;
+    assert(node_list4.unpack(packed) == true);
+    assert(node_list4.size() == 3);
+    checkNodeList1(node_list4);
+  }
+
+  { 
+    cout << endl << "==================== Test 2" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:when test=c1>"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=foo1 />"
+                      "raw1"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=bar1 />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "</esi:when>"
+                      "<esi:when test=c2>"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=foo2 />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "raw2"
+                      "<esi:include src=bar2 />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "</esi:when>"
+                      "<esi:otherwise>"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=foo3 />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=bar3 />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    checkNodeList2(node_list);
+
+    string packed = node_list.pack();
+    DocNodeList node_list2;
+    assert(node_list2.unpack(packed) == true);
+    checkNodeList2(node_list2);
+
+    string packed2;
+    node_list.pack(packed2);
+    assert(packed == packed2);
+    node_list2.clear();
+    assert(node_list2.unpack(packed2) == true);
+    checkNodeList2(node_list2);
+
+    string packed3("hello");
+    node_list.pack(packed3, true);
+    assert(packed3.size() == (packed.size() + 5));
+    node_list2.clear();
+    assert(node_list2.unpack(packed3) == false);
+    assert(node_list2.unpack(packed3.data() + 5, packed3.size() - 5) == true);
+    checkNodeList2(node_list2);
+  }
+  
+  cout << "All tests passed" << endl;
+  return 0;
+}
+
diff --git a/plugins/experimental/esi/test/parser_test.cc b/plugins/experimental/esi/test/parser_test.cc
new file mode 100644
index 00000000..a2e5eb05
--- /dev/null
+++ b/plugins/experimental/esi/test/parser_test.cc
@@ -0,0 +1,1591 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <assert.h>
+#include <string>
+
+#include "EsiParser.h"
+#include "print_funcs.h"
+#include "Utils.h"
+
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::string;
+using namespace EsiLib;
+
+void check_node_attr(const Attribute &attr, const char *name, const char *value) {
+  int name_len = strlen(name);
+  int value_len = strlen(value);
+  assert(attr.name_len == name_len);
+  assert(attr.value_len == value_len);
+  assert(strncmp(attr.name, name, name_len) == 0);
+  assert(strncmp(attr.value, value, value_len) == 0);
+}
+
+pthread_key_t threadKey;
+
+int main() 
+{
+  pthread_key_create(&threadKey, NULL);
+  Utils::init(&Debug, &Error);
+  
+  {
+    cout << endl << "==================== Test 1: No src attr test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 2: Empty src test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=/>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+  
+  {
+    cout << endl << "==================== Test 3: Valid src test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=abc />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNode &node = node_list.back();
+    assert(node.type == DocNode::TYPE_INCLUDE);
+    assert(node.data_len == 0);
+    assert(node.attr_list.size() == 1);
+    assert(node.child_nodes.size() == 0);
+    check_node_attr(node.attr_list.front(), "src", "abc");
+  }
+
+  {
+    cout << endl << "==================== Test 4: Invalid Quoted URL test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=\"abc def />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 5: Invalid Quoted URL test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=abcdef\" />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 6: Invalid Quoted URL test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=abc\"\"de\"f />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 7: Quoted URL test " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=\"abc def\" />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNode &node = node_list.back();
+    assert(node.type == DocNode::TYPE_INCLUDE);
+    assert(node.data_len == 0);
+    assert(node.attr_list.size() == 1);
+    check_node_attr(node.attr_list.front(), "src", "abc def");
+    assert(node.child_nodes.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 8: Invalid tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "bleh <esi:blah /> flah";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 9: Invalid Comment tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:comment></esi:comment>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 10: Valid Comment tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:comment text=\"blah\"/>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    assert(node_list.begin()->child_nodes.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 11: Invalid remove tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:remove />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 12: Valid remove tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:remove> </esi:remove>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+  }
+
+  {
+    cout << endl << "==================== Test 13: Interleaving raw text " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "foo <esi:remove> </esi:remove> bar";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 3);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->data  == 0);
+    assert((list_iter->child_nodes).size() == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, " bar", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 14: Interleaving different nodes" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "foo <esi:remove> </esi:remove> bar <esi:include src=blah /><esi:vars>bleh</esi:vars>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 5);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->data  == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 5);
+    assert(strncmp(list_iter->data, " bar ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "blah");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_VARS);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "bleh", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 15: empty parse" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list) == true);
+  }
+
+  {
+    cout << endl << "==================== Test 16: clear() test" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    string input_data = "foo <esi:remove> </esi:remove> bar <esi:include src=blah />";
+
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 4);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->data  == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 5);
+    assert(strncmp(list_iter->data, " bar ", list_iter->data_len) == 0);
+    assert((list_iter->child_nodes).size() == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "blah");
+
+    parser.clear();
+    node_list.clear();
+
+    input_data = "foo <esi:remove> </esi:remove> bar";
+
+    assert(parser.parseChunk(input_data.c_str(), node_list, -1) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 3);
+    list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    assert((list_iter->child_nodes).size() == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->data == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, " bar", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 17: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <esi:include src=url1/> bar1\n";
+    char line2[] = "foo2 <esi:include src=url2/> bar2\n";
+    char line3[] = "<esi:include src=\"blah bleh\"/>";
+    char line4[] = "<esi:comment text=\"bleh\"/>";
+    char line5[] = "<esi:remove> <a href=> </esi:remove>";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 4);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 6);
+    assert(parser.parseChunk(line4, node_list) == true);
+    assert(node_list.size() == 7);
+    assert(parser.parseChunk(line5, node_list) == true);
+    assert(node_list.size() == 8);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 8);
+  }
+
+  {
+    cout << endl << "==================== Test 18: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <esi:include";
+    char line2[] = "src=url2/>";
+    char line3[] = "bar3";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 1);
+    assert(parser.parseChunk(line2, node_list) == false);
+    assert(node_list.size() == 1);
+    assert(parser.parseChunk(line3, node_list) == false);
+    assert(node_list.size() == 1);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 19: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <esi:include ";
+    char line2[] = "src=url2/>";
+    char line3[] = "bar3";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 1);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 3);
+  }
+
+  {
+    cout << endl << "==================== Test 20: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <e";
+    char line2[] = "si:include src=url2/>";
+    char line3[] = "bar3";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 3);
+  }
+
+  {
+    cout << endl << "==================== Test 21: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <e";
+    char line2[] = "xsi:include src=url2/>";
+    char line3[] = "bar3";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+  }
+
+  {
+    cout << endl << "==================== Test 22: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <e";
+    char line2[] = "si:include src=ur";
+    char line3[] = "l2/>bar3";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 1);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 3);
+
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 5);
+    assert(strncmp(list_iter->data, "foo1 ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url2");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "bar3", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 23: multi-chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <e";
+    char line2[] = "si:include src=ur";
+    char line3[] = "l2/>bar3";
+    char line4[] = "<esi:remove>blah</esi:remove> <esi:comment";
+    char line5[] = " text=\"foo\"/>";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 1);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.parseChunk(line4, node_list) == true);
+    assert(node_list.size() == 5);
+    assert(parser.parseChunk(line5, node_list) == true);
+    assert(node_list.size() == 6);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 6);
+
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 5);
+    assert(strncmp(list_iter->data, "foo1 ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url2");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "bar3", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 1);
+    assert(strncmp(list_iter->data, " ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_COMMENT);
+    assert(list_iter->data_len == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 24: one-shot parse" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "foo <esi:include src=blah /> bar";
+
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    assert(node_list.size() == 3);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "blah");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, " bar", list_iter->data_len) == 0);
+    assert((list_iter->child_nodes).size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 25: final chunk" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    char line1[] = "foo1 <e";
+    char line2[] = "si:include src=ur";
+    char line3[] = "l2/>bar3";
+    char line4[] = "<esi:remove>blah</esi:remove> <esi:comment";
+    char line5[] = " bar/>";
+    assert(parser.parseChunk(line1, node_list) == true);
+    assert(node_list.size() == 0);
+    assert(parser.parseChunk(line2, node_list) == true);
+    assert(node_list.size() == 1);
+    assert(parser.parseChunk(line3, node_list) == true);
+    assert(node_list.size() == 2);
+    assert(parser.parseChunk(line4, node_list) == true);
+    assert(node_list.size() == 5);
+    assert(parser.completeParse(node_list, line5, sizeof(line5) - 1) == true);
+    assert(node_list.size() == 6);
+
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 5);
+    assert(strncmp(list_iter->data, "foo1 ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url2");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "bar3", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 1);
+    assert(strncmp(list_iter->data, " ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_COMMENT);
+    assert(list_iter->data_len == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 26: partial trailing tag" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "foo <esi:include src=blah /> <esi";
+
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    assert(node_list.size() == 3);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "blah");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 5);
+    assert(strncmp(list_iter->data, " <esi", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 27: partial trailing tag" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "foo <esi:include src=blah /> <esi:remov";
+
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    assert(node_list.size() == 4);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 4);
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "blah");
+    ++list_iter;
+    // parsing code adds the space and partial tag as two separate nodes
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 1);
+    assert(strncmp(list_iter->data, " ", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 10);
+    assert(strncmp(list_iter->data, "<esi:remov", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 28: empty vars tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:vars></esi:vars>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_VARS);
+    assert(list_iter->data_len == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 29: non-empty vars tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:vars>$(HTTP_COOKIE)</esi:vars>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_VARS);
+    assert(list_iter->data_len == 14);
+    assert(strncmp(list_iter->data, "$(HTTP_COOKIE)", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 30: choose tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = 
+      "<esi:choose>"
+      "<esi:when test=blah><esi:include src=url /></esi:when>"
+      "</esi:choose>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_CHOOSE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    assert(list_iter->attr_list.size() == 0);
+    DocNodeList::iterator list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_WHEN);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 1);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "test", "blah");
+    DocNodeList::iterator list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->child_nodes.size() == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "url");
+  }
+
+  {
+    cout << endl << "==================== Test 31: when tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:when test=blah><esi:include src=url /></esi:when>";
+    
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_WHEN);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "test", "blah");
+  }
+
+  {
+    cout << endl << "==================== Test 32: otherwise tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:otherwise><esi:include src=url /></esi:otherwise>";
+    
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_OTHERWISE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->child_nodes.size() == 1);
+  }
+
+  {
+    cout << endl << "==================== Test 33: try tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = 
+      "<esi:try>"
+      "<esi:attempt><esi:include src=url1 /></esi:attempt>"
+      "<esi:except><esi:include src=url2 /></esi:except>"
+      "</esi:try>";
+    
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_TRY);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->child_nodes.size() == 2);
+    DocNodeList &child_nodes = list_iter->child_nodes;
+    assert(child_nodes.size() == 2);
+    list_iter = child_nodes.begin();
+    assert(list_iter->type == DocNode::TYPE_ATTEMPT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    DocNodeList::iterator list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 0);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "src", "url1");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_EXCEPT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    assert(list_iter->attr_list.size() == 0);
+    list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 0);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "src", "url2");
+  }
+
+  {
+    cout << endl << "==================== Test 34: attempt/except tags " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data =
+      "<esi:attempt><esi:include src=url1 /></esi:attempt>"
+      "<esi:except><esi:include src=url2 /></esi:except>";
+    
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 2);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_ATTEMPT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    DocNodeList::iterator list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 0);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "src", "url1");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_EXCEPT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 0);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "src", "url2");
+  }
+
+  {
+    cout << endl << "==================== Test 35: internal data pointer " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=abc />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNode &node = node_list.back();
+    assert(node.type == DocNode::TYPE_INCLUDE);
+    assert(node.data_len == 0);
+    assert(node.attr_list.size() == 1);
+    check_node_attr(node.attr_list.front(), "src", "abc");
+    input_data = "blah";
+    assert(node.type == DocNode::TYPE_INCLUDE);
+    assert(node.data_len == 0);
+    assert(node.attr_list.size() == 1);
+    check_node_attr(node.attr_list.front(), "src", "abc");
+  }
+
+  {
+    cout << endl << "==================== Test 36: external data pointer " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:include src=abc />";
+
+    DocNodeList orig_node_list;
+    assert(parser.parseChunk(input_data, orig_node_list) == true);
+    assert(parser.completeParse(orig_node_list) == true);
+    assert(orig_node_list.size() == 1);
+    DocNode &orig_node = orig_node_list.back();
+    assert(orig_node.type == DocNode::TYPE_INCLUDE);
+    assert(orig_node.data_len == 0);
+    assert(orig_node.attr_list.size() == 1);
+    check_node_attr(orig_node.attr_list.front(), "src", "abc");
+
+    DocNodeList new_node_list;
+    input_data = "foo<esi:try><esi:attempt></esi:attempt><esi:except></esi:except></esi:try>";
+    assert(parser.parse(new_node_list, input_data) == true);
+
+    // make sure orig pointers are still valid
+    assert(orig_node.type == DocNode::TYPE_INCLUDE);
+    assert(orig_node.data_len == 0);
+    assert(orig_node.attr_list.size() == 1);
+    check_node_attr(orig_node.attr_list.front(), "src", "abc");
+
+    // check new pointers
+    assert(new_node_list.size() == 2);
+    DocNodeList::iterator list_iter = new_node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == static_cast<int>(strlen("foo")));
+    assert(strncmp(list_iter->data, "foo", list_iter->data_len) == 0);
+    
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_TRY);
+    DocNodeList &child_nodes = list_iter->child_nodes;
+    assert(child_nodes.size() == 2);
+    assert(list_iter->attr_list.size() == 0);
+    DocNodeList::iterator list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 0);
+    assert(list_iter2->attr_list.size() == 0);
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+    assert(list_iter2->data_len == 0);
+    assert(list_iter2->child_nodes.size() == 0);
+    assert(list_iter2->attr_list.size() == 0);
+    input_data[0] = 'b';
+    input_data[1] = 'a';
+    input_data[2] = 'r';
+    list_iter = new_node_list.begin();
+    assert(strncmp(list_iter->data, "bar", 3) == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 37: html comment tag " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = 
+      "foo <esi:comment text=\"blah\"/><!--esi <p><esi:vars>Hello, $(HTTP_COOKIE{name})!</esi:vars></p>-->" 
+      "<esi:include src=url /> bar";
+    
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 5);
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == static_cast<int>(strlen("foo ")));
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_COMMENT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("<p><esi:vars>Hello, $(HTTP_COOKIE{name})!</esi:vars></p>")));
+    assert(strncmp(list_iter->data, "<p><esi:vars>Hello, $(HTTP_COOKIE{name})!</esi:vars></p>",
+                   list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == static_cast<int>(strlen(" bar")));
+    assert(strncmp(list_iter->data, " bar", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 38: html comment tag - partial chunks " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    const char *lines[] = {
+      "foo ",
+      "<es",
+      "i:comment text=\"blah\"/><esi:include src=url1/>",
+      "<!--",
+      "esi <p><esi:vars>Hello, $(HTTP_COOKIE{name})!</esi:vars></p>-->",
+      "<esi:include src=url2 /><!--e",
+      "si foo--><!--esi bar-->",
+      "<!--esi blah--><esi:com",
+      "ment text=\"bleh\" /> <esi:remove> </esi:remove><!--esi bleh -->",
+      "<!--esi blooh--><esi:include src=url3/>",
+      0 
+    };
+    
+    DocNodeList node_list;
+    for (int i = 0; lines[i]; ++i) {
+      assert(parser.parseChunk(lines[i], node_list) == true);
+    }
+    assert(parser.completeParse(node_list) == true);
+
+    assert(node_list.size() == 14);
+
+    DocNodeList::iterator list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == static_cast<int>(strlen("foo ")));
+    assert(strncmp(list_iter->data, "foo ", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_COMMENT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url1");
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("<p><esi:vars>Hello, $(HTTP_COOKIE{name})!</esi:vars></p>")));
+    assert(strncmp(list_iter->data, "<p><esi:vars>Hello, $(HTTP_COOKIE{name})!</esi:vars></p>",
+                   list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url2");
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("foo")));
+    assert(strncmp(list_iter->data, "foo", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("bar")));
+    assert(strncmp(list_iter->data, "bar", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("blah")));
+    assert(strncmp(list_iter->data, "blah", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_COMMENT);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == static_cast<int>(strlen(" ")));
+    assert(strncmp(list_iter->data, " ", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_REMOVE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("bleh ")));
+    assert(strncmp(list_iter->data, "bleh ", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("blooh")));
+    assert(strncmp(list_iter->data, "blooh", list_iter->data_len) == 0);
+    assert(list_iter->attr_list.size() == 0);
+    ++list_iter;
+
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url3");
+    ++list_iter;
+  }
+
+  {
+    cout << endl << "==================== Test 39: opening tag corner cases" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    DocNodeList node_list;
+    DocNodeList::iterator list_iter;
+
+    assert(parser.parse(node_list, "<<esi:include src=url/>") == true);
+    assert(node_list.size() == 2);
+    list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 1);
+    assert(list_iter->data[0] == '<');
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->data_len == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "url");
+
+    assert(parser.parse(node_list, "<<!--esi <esi:comment text=blah/>-->") == true);
+    assert(node_list.size() == 4);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 1);
+    assert(list_iter->data[0] == '<');
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_HTML_COMMENT);
+    assert(list_iter->data_len == static_cast<int>(strlen("<esi:comment text=blah/>")));
+    assert(strncmp(list_iter->data, "<esi:comment text=blah/>", list_iter->data_len) == 0);
+
+    assert(parser.parse(node_list, "<!<esi:comment text=blah/>") == true);
+    assert(node_list.size() == 6);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->data_len == 2);
+    assert(strncmp(list_iter->data, "<!", list_iter->data_len) == 0);
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_COMMENT);
+
+    assert(parser.parse(node_list, "<esi<!--esi <esi:comment text=blah/>") == false);
+    assert(node_list.size() == 6);
+
+    assert(parser.parse(node_list, "<esi:<!--esi <esi:comment text=blah/>-->/>") == false);
+    assert(node_list.size() == 6);
+  }
+
+  {
+    cout << endl << "==================== Test 40: No handler attr " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:special-include />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "==================== Test 41: Empty handle " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:special-include handler=/>";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+  
+  {
+    cout << endl << "==================== Test 42: Valid special include " << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data = "<esi:special-include handler=ads pos=SKY />";
+
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNode &node = node_list.back();
+    assert(node.type == DocNode::TYPE_SPECIAL_INCLUDE);
+    assert(node.data_len == static_cast<int>(strlen("handler=ads pos=SKY ")));
+    assert(strncmp(node.data, "handler=ads pos=SKY ", node.data_len) == 0);
+    assert(node.attr_list.size() == 1);
+    check_node_attr(node.attr_list.front(), "handler", "ads");
+  }
+
+  {
+    cout << endl << "===================== Test 43) choose-when" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string 
+      input_data1("<esi:choose>"
+                  "<esi:when test=cond1>"
+                  "<esi:include src=foo />"
+                  "</esi:when>"
+                  "<esi:when test=cond2>"
+                  "<esi:include src=bar />"),
+      input_data2("</esi:when>"
+                  "<esi:otherwise>"
+                  "<esi:include src=otherwise />"
+                  "</esi:otherwise>"
+                  "</esi:choose>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data1, node_list) == true);
+    assert(parser.parseChunk(input_data2, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNode *node = &(*(node_list.begin()));
+    assert(node->type == DocNode::TYPE_CHOOSE);
+    assert((node->child_nodes).size() == 3);
+    DocNodeList::iterator list_iter = (node->child_nodes).begin();
+    assert(list_iter->type == DocNode::TYPE_WHEN);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "test", "cond1");
+    assert(list_iter->child_nodes.size() == 1);
+    node = &(*(list_iter->child_nodes.begin()));
+    assert(node->type == DocNode::TYPE_INCLUDE);
+    assert(node->attr_list.size() == 1);
+    check_node_attr(node->attr_list.front(), "src", "foo");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_WHEN);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "test", "cond2");
+    assert(list_iter->child_nodes.size() == 1);
+    node = &(*(list_iter->child_nodes.begin()));
+    assert(node->type == DocNode::TYPE_INCLUDE);
+    assert(node->attr_list.size() == 1);
+    check_node_attr(node->attr_list.front(), "src", "bar");
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_OTHERWISE);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->child_nodes.size() == 1);
+    node = &(*(list_iter->child_nodes.begin()));
+    assert(node->type == DocNode::TYPE_INCLUDE);
+    assert(node->attr_list.size() == 1);
+    check_node_attr(node->attr_list.front(), "src", "otherwise");
+  }
+
+  {
+    cout << endl << "===================== Test 44) invalid choose; non when/otherwise node" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:comment text=\"blah\" />"
+                      "<esi:when test=foo>"
+                      "<esi:include src=foo />"
+                      "</esi:when>"
+                      "<esi:when test=bar>"
+                      "<esi:include src=bar />"
+                      "</esi:when>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 45) invalid choose; multiple otherwise" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:when test=foo>"
+                      "<esi:include src=foo />"
+                      "</esi:when>"
+                      "<esi:when test=bar>"
+                      "<esi:include src=bar />"
+                      "</esi:when>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 46) choose-when" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 1);
+    DocNode *node = &(*(node_list.begin()));
+    assert(node->type == DocNode::TYPE_CHOOSE);
+    assert((node->child_nodes).size() == 1);
+    DocNodeList::iterator list_iter = (node->child_nodes).begin();
+    assert(list_iter->type == DocNode::TYPE_OTHERWISE);
+    assert(list_iter->child_nodes.size() == 1);
+    node = &(*(list_iter->child_nodes.begin()));
+    assert(node->type == DocNode::TYPE_INCLUDE);
+    assert(node->attr_list.size() == 1);
+    check_node_attr(node->attr_list.front(), "src", "otherwise");
+  }
+
+  {
+    cout << endl << "===================== Test 47) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "</esi:try>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 48) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:try>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 49) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:comment text=blah/>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 50) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 51) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 52) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:include src=pre />"
+                      "foo"
+                      "<esi:try>"
+                      "foo"
+                      "<esi:attempt>"
+                      "bar"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "bar");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 53) try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string
+      input_data1("<esi:include src=pre />"
+                  "foo"
+                  "<esi:try>\n\t  "
+                  "<esi:attempt>"
+                  "bar"
+                  "<esi:include src=attempt />"
+                  "</esi:attempt>"
+                  "\n\n\t   "),
+      input_data2("<esi:except>"
+                  "<esi:include src=except />"
+                  "</esi:except>"
+                  "\n\t "
+                  "</esi:try>"
+                  "bar");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data1, node_list) == true);
+    assert(parser.parseChunk(input_data2, node_list) == true);
+    assert(parser.completeParse(node_list) == true);
+    assert(node_list.size() == 4);
+    DocNodeList::iterator list_iter, list_iter2, list_iter3;
+    list_iter = node_list.begin();
+    assert(list_iter->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter->child_nodes.size() == 0);
+    assert(list_iter->attr_list.size() == 1);
+    check_node_attr(list_iter->attr_list.front(), "src", "pre");
+    
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->child_nodes.size() == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->data_len == static_cast<int>(strlen("foo")));
+    assert(strncmp(list_iter->data, "foo", list_iter->data_len) == 0);
+
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_TRY);
+    assert(list_iter->child_nodes.size() == 2);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->data_len == 0);
+
+    list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+    assert(list_iter2->child_nodes.size() == 2);
+    assert(list_iter2->attr_list.size() == 0);
+    assert(list_iter2->data_len == 0);
+    
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_PRE);
+    assert(list_iter3->child_nodes.size() == 0);
+    assert(list_iter3->attr_list.size() == 0);
+    assert(list_iter3->data_len == static_cast<int>(strlen("bar")));
+    assert(strncmp(list_iter3->data, "bar", list_iter3->data_len) == 0);
+    
+    ++list_iter3;
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->child_nodes.size() == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    assert(list_iter3->data_len == 0);
+    check_node_attr(list_iter3->attr_list.front(), "src", "attempt");
+    
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+    assert(list_iter2->child_nodes.size() == 1);
+    assert(list_iter2->attr_list.size() == 0);
+    assert(list_iter2->data_len == 0);
+    
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->child_nodes.size() == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    assert(list_iter3->data_len == 0);
+    check_node_attr(list_iter3->attr_list.front(), "src", "except");
+    
+    ++list_iter;
+    assert(list_iter->type == DocNode::TYPE_PRE);
+    assert(list_iter->child_nodes.size() == 0);
+    assert(list_iter->attr_list.size() == 0);
+    assert(list_iter->data_len == static_cast<int>(strlen("bar")));
+    assert(strncmp(list_iter->data, "bar", list_iter->data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 54) invalid choose-when" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:when test=foo>"
+                      "<esi:include src=foo />"
+                      "</esi:when>"
+                      "<esi:when test=bar>"
+                      "<esi:include src=bar />"
+                      "</esi:when>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>foo"
+                      "</esi:choose>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 55) invalid choose; multiple otherwise" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>\n"
+                      "\t<esi:when test=foo>"
+                      "<esi:include src=foo />"
+                      "</esi:when>\n"
+                      "\t<esi:when test=bar>"
+                      "<esi:include src=bar />"
+                      "</esi:when>\n"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 56) invalid try block" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:try>"
+                      "</esi:try>");
+    DocNodeList node_list;
+    assert(parser.parseChunk(input_data, node_list) == false);
+    assert(parser.completeParse(node_list) == false);
+    assert(node_list.size() == 0);
+  }
+  
+  {
+    cout << endl << "===================== Test 57) choose/try combo" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:when test=c1>"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=foo1 />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=bar1 />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "</esi:when>"
+                      "<esi:when test=c2>"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=foo2 />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=bar2 />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "</esi:when>"
+                      "<esi:otherwise>"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=foo3 />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=bar3 />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    assert(node_list.size() == 1);
+    DocNodeList::iterator list_iter = node_list.begin(), list_iter2, list_iter3;
+    assert(list_iter->type == DocNode::TYPE_CHOOSE);
+
+    list_iter2 = list_iter->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_WHEN);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "test", "c1");
+    list_iter2 = list_iter2->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_TRY);
+    list_iter2 = list_iter2->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "foo1");
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "bar1");
+
+    list_iter2 = list_iter->child_nodes.begin();
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_WHEN);
+    assert(list_iter2->attr_list.size() == 1);
+    check_node_attr(list_iter2->attr_list.front(), "test", "c2");
+    list_iter2 = list_iter2->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_TRY);
+    list_iter2 = list_iter2->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "foo2");
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "bar2");
+
+    list_iter2 = list_iter->child_nodes.begin();
+    ++list_iter2;
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_OTHERWISE);
+    assert(list_iter2->attr_list.size() == 0);
+    list_iter2 = list_iter2->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_TRY);
+    list_iter2 = list_iter2->child_nodes.begin();
+    assert(list_iter2->type == DocNode::TYPE_ATTEMPT);
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "foo3");
+    ++list_iter2;
+    assert(list_iter2->type == DocNode::TYPE_EXCEPT);
+    list_iter3 = list_iter2->child_nodes.begin();
+    assert(list_iter3->type == DocNode::TYPE_INCLUDE);
+    assert(list_iter3->data_len == 0);
+    assert(list_iter3->attr_list.size() == 1);
+    check_node_attr(list_iter3->attr_list.front(), "src", "bar3");
+  }
+
+  {
+    cout << endl << "===================== Test 58) '>' and '>=' operators" << endl;
+    EsiParser parser("parser_test", &Debug, &Error);
+    string input_data("<esi:choose>"
+                      "<esi:when test=\"a>b\">foo</esi:when>"
+                      "<esi:when test=\"c >= d\">bar</esi:when>"
+                      "</esi:choose>");
+    DocNodeList node_list;
+    assert(parser.completeParse(node_list, input_data) == true);
+    DocNodeList::iterator list_iter = node_list.begin()->child_nodes.begin();
+    AttributeList::iterator attr_iter = list_iter->attr_list.begin();
+    assert(attr_iter->value_len == 3);
+    assert(strncmp(attr_iter->value, "a>b", attr_iter->value_len) == 0);
+    ++list_iter;
+    attr_iter = list_iter->attr_list.begin();
+    assert(attr_iter->value_len == 6);
+    assert(strncmp(attr_iter->value, "c >= d", attr_iter->value_len) == 0);
+
+    node_list.clear();
+    parser.clear();
+    input_data.assign("<esi:choose>"
+                      "<esi:when test=a>b>foo</esi:when>"
+                      "<esi:when test=\"c >= d\">bar</esi:when>"
+                      "</esi:choose>");
+    assert(parser.completeParse(node_list, input_data) == true);
+    list_iter = node_list.begin()->child_nodes.begin();
+    attr_iter = list_iter->attr_list.begin();
+    assert(attr_iter->value_len == 1);
+    assert(strncmp(attr_iter->value, "a", attr_iter->value_len) == 0);
+    ++list_iter;
+    attr_iter = list_iter->attr_list.begin();
+    assert(attr_iter->value_len == 6);
+    assert(strncmp(attr_iter->value, "c >= d", attr_iter->value_len) == 0);
+  }
+  
+  cout << endl << "All tests passed!" << endl;
+  return 0;
+}
diff --git a/plugins/experimental/esi/test/print_funcs.cc b/plugins/experimental/esi/test/print_funcs.cc
new file mode 100644
index 00000000..7acc06f3
--- /dev/null
+++ b/plugins/experimental/esi/test/print_funcs.cc
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "print_funcs.h"
+
+static const int LINE_SIZE = 1024 * 1024;
+
+void Debug(const char *tag, const char *fmt, ...) {
+  char buf[LINE_SIZE];
+  va_list ap;
+  va_start(ap, fmt);
+  vsnprintf(buf, LINE_SIZE, fmt, ap);
+  printf("Debug (%s): %s\n", tag, buf);
+  va_end(ap);
+}
+
+void Error(const char *fmt, ...) {
+  char buf[LINE_SIZE];
+  va_list ap;
+  va_start(ap, fmt);
+  vsnprintf(buf, LINE_SIZE, fmt, ap);
+  printf("Error: %s\n", buf);
+  va_end(ap);
+}
diff --git a/plugins/experimental/esi/test/print_funcs.h b/plugins/experimental/esi/test/print_funcs.h
new file mode 100644
index 00000000..81b6383d
--- /dev/null
+++ b/plugins/experimental/esi/test/print_funcs.h
@@ -0,0 +1,31 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _PRINT_FUNCS_H
+#define _PRINT_FUNCS_H
+
+void Debug(const char *tag, const char *fmt, ...);
+
+void Error(const char *fmt, ...);
+
+#endif // _PRINT_FUNCS_H
diff --git a/plugins/experimental/esi/test/processor_test.cc b/plugins/experimental/esi/test/processor_test.cc
new file mode 100644
index 00000000..cb9cf120
--- /dev/null
+++ b/plugins/experimental/esi/test/processor_test.cc
@@ -0,0 +1,1134 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <assert.h>
+#include <string>
+
+#include "EsiProcessor.h"
+#include "TestHttpDataFetcher.h"
+#include "print_funcs.h"
+#include "Utils.h"
+#include "HandlerMap.h"
+
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::string;
+using namespace EsiLib;
+
+pthread_key_t threadKey;
+
+static const int FETCHER_STATIC_DATA_SIZE = 30;
+
+int main() 
+{
+  Variables esi_vars("vars", &Debug, &Error);
+  HandlerManager handler_mgr("handler_mgr", &Debug, &Error);
+
+  pthread_key_create(&threadKey, NULL);
+  Utils::init(&Debug, &Error);
+
+  {
+    cout << endl << "===================== Test 1) call sequence" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("");
+    const char *output_data;
+    int output_data_len=0;
+
+    cout << "Negative test - process()ing without completeParse()ing..." << endl;
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::FAILURE);
+    esi_proc.stop();
+
+    cout << "Implicit call to start() #1..." << endl;
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+    esi_proc.stop();
+
+    cout << "Implicit call to start() #2..." << endl;
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+    esi_proc.stop();
+
+    cout << "Negative test: calling process() before start()" << endl;
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::FAILURE);
+
+    cout << "Negative test: calling addParseData() after process()" << endl;
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == false);
+    esi_proc.stop();
+
+    cout << "Negative test: calling completeParse() after process()" << endl;
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+    assert(esi_proc.completeParse() == false);
+    esi_proc.stop();
+
+    cout << "Good call sequence with no data" << endl;
+    assert(esi_proc.start() == true);
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 2) Negative test: invalid ESI tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo<esi:blah/>bar");
+    
+    const char *output_data;
+    int output_data_len = 10;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::FAILURE);
+    assert(output_data_len == 10); // should remain unchanged
+  }
+
+  {
+    cout << endl << "===================== Test 3) comment tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo<esi:comment text=\"bleh\"/>bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 6);
+    assert(strncmp(output_data, "foobar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 4) comment tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:comment text=\"bleh\"/>bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 3);
+    assert(strncmp(output_data, "bar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 5) comment tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo<esi:comment text=\"bleh\"/>");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 3);
+    assert(strncmp(output_data, "foo", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 6) multi-line comment tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo\n<esi:comment text=\"\nbleh\"/>\nbar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8);
+    assert(strncmp(output_data, "foo\n\nbar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 7) multi-line remove tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo\n<esi:remove><img src=\"http://www.example.com\"></esi:remove>\nbar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8);
+    assert(strncmp(output_data, "foo\n\nbar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 8) remove and comment tags" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo\n<esi:remove><img src=\"http://www.example.com\"></esi:remove>\nbar"
+                      "foo2\n<esi:comment text=\"bleh\"/>\nbar2");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 18);
+    assert(strncmp(output_data, "foo\n\nbarfoo2\n\nbar2", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 9) multiple remove and comment tags" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo1<esi:remove><img src=\"http://www.example.com\"></esi:remove>bar1\n"
+                      "foo1<esi:comment text=\"bleh\"/>bar1\n"
+                      "foo2<esi:remove><img src=\"http://www.example.com\"></esi:remove>bar2\n"
+                      "foo2<esi:comment text=\"bleh\"/>bar2\n"
+                      "foo3<esi:remove><img src=\"http://www.example.com\"></esi:remove>bar3\n"
+                      "foo3<esi:comment text=\"bleh\"/>bar3\n");
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 54);
+    assert(strncmp(output_data, "foo1bar1\nfoo1bar1\nfoo2bar2\nfoo2bar2\nfoo3bar3\nfoo3bar3\n", 
+                   output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 10) include tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:include src=url1/> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8 + 4 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, "foo >>>>> Content for URL [url1] <<<<< bar", output_data_len) == 0);
+  }
+  
+  {
+    cout << endl << "===================== Test 11) include tag with no URL" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:include src=/> bar");
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == false);
+  }
+
+  {
+    cout << endl << "===================== Test 12) include tag with no src" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:include /> bar");
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == false);
+  }
+
+  {
+    cout << endl << "===================== Test 13) multiple include tags" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo1 <esi:include src=url1/> bar1\n"
+                      "foo2 <esi:include src=url2/> bar2\n"
+                      "<esi:include src=\"blah bleh\"/>");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 11 + 4 + FETCHER_STATIC_DATA_SIZE + 11 + 4 + FETCHER_STATIC_DATA_SIZE +
+           9 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, 
+                   "foo1 >>>>> Content for URL [url1] <<<<< bar1\n"
+                   "foo2 >>>>> Content for URL [url2] <<<<< bar2\n"
+                   ">>>>> Content for URL [blah bleh] <<<<<", output_data_len) == 0);
+  }
+  
+  {
+    cout << endl << "===================== Test 14) remove, comment and include tags" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo1 <esi:include src=url1/> bar1\n"
+                      "foo2 <esi:include src=url2/> bar2\n"
+                      "<esi:include src=\"blah bleh\"/>"
+                      "<esi:comment text=\"bleh\"/>"
+                      "<esi:remove> <a href=> </esi:remove>");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 11 + 4 + FETCHER_STATIC_DATA_SIZE + 11 + 4 + FETCHER_STATIC_DATA_SIZE +
+           9 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, 
+                   "foo1 >>>>> Content for URL [url1] <<<<< bar1\n"
+                   "foo2 >>>>> Content for URL [url2] <<<<< bar2\n"
+                   ">>>>> Content for URL [blah bleh] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 15) multiple addParseData calls" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    char line1[] = "foo1 <esi:include src=url1/> bar1\n";
+    char line2[] = "foo2 <esi:include src=url2/> bar2\n";
+    char line3[] = "<esi:include src=\"blah bleh\"/>";
+    char line4[] = "<esi:comment text=\"bleh\"/>";
+    char line5[] = "<esi:remove> <a href=>";
+    char line6[] = "</esi:remove>";
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(line1, sizeof(line1) - 1) == true);
+    assert(esi_proc.addParseData(line2, sizeof(line2) - 1) == true);
+    assert(esi_proc.addParseData(line3, sizeof(line3) - 1) == true);
+    assert(esi_proc.addParseData(line4, sizeof(line4) - 1) == true);
+    assert(esi_proc.addParseData(line5, sizeof(line5) - 1) == true);
+    assert(esi_proc.addParseData(line6, 13) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 11 + 4 + FETCHER_STATIC_DATA_SIZE + 11 + 4 + FETCHER_STATIC_DATA_SIZE +
+           9 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, 
+                   "foo1 >>>>> Content for URL [url1] <<<<< bar1\n"
+                   "foo2 >>>>> Content for URL [url2] <<<<< bar2\n"
+                   ">>>>> Content for URL [blah bleh] <<<<<", output_data_len) == 0);
+  }
+  
+  {
+    cout << endl << "===================== Test 16) one-shot parse" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo1 <esi:include src=url1/> bar1\n"
+                      "foo2 <esi:include src=url2/> bar2\n"
+                      "<esi:include src=\"blah bleh\"/>"
+                      "<esi:comment text=\"bleh\"/>"
+                      "<esi:remove> <a href=> </esi:remove>");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.completeParse(input_data.data(), input_data.size()) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 11 + 4 + FETCHER_STATIC_DATA_SIZE + 11 + 4 + FETCHER_STATIC_DATA_SIZE +
+           9 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, 
+                   "foo1 >>>>> Content for URL [url1] <<<<< bar1\n"
+                   "foo2 >>>>> Content for URL [url2] <<<<< bar2\n"
+                   ">>>>> Content for URL [blah bleh] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 17) final chunk call" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    char line1[] = "foo1 <esi:include src=url1/> bar1\n";
+    char line2[] = "foo2 <esi:include src=url2/> bar2\n";
+    char line3[] = "<esi:include src=\"blah bleh\"/>";
+    char line4[] = "<esi:comment text=\"bleh\"/>";
+    char line5[] = "<esi:remove> <a href=>";
+    char line6[] = "</esi:remove>";
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(line1, sizeof(line1) - 1) == true);
+    assert(esi_proc.addParseData(line2, sizeof(line2) - 1) == true);
+    assert(esi_proc.addParseData(line3, sizeof(line3) - 1) == true);
+    assert(esi_proc.addParseData(line4, sizeof(line4) - 1) == true);
+    assert(esi_proc.addParseData(line5, sizeof(line5) - 1) == true);
+    assert(esi_proc.completeParse(line6, sizeof(line6) - 1) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 11 + 4 + FETCHER_STATIC_DATA_SIZE + 11 + 4 + FETCHER_STATIC_DATA_SIZE +
+           9 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, 
+                   "foo1 >>>>> Content for URL [url1] <<<<< bar1\n"
+                   "foo2 >>>>> Content for URL [url2] <<<<< bar2\n"
+                   ">>>>> Content for URL [blah bleh] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 18) no length arg" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:include src=url1/> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8 + 4 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, "foo >>>>> Content for URL [url1] <<<<< bar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 19) std::string arg" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:include src=url1/> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8 + 4 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, "foo >>>>> Content for URL [url1] <<<<< bar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 20) one-shot parse, std::string arg" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo1 <esi:include src=url1/> bar1\n"
+                      "foo2 <esi:include src=url2/> bar2\n"
+                      "<esi:include src=\"blah bleh\"/>"
+                      "<esi:comment text=bleh />"
+                      "<esi:remove> <a href=> </esi:remove>");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 11 + 4 + FETCHER_STATIC_DATA_SIZE + 11 + 4 + FETCHER_STATIC_DATA_SIZE +
+           9 + FETCHER_STATIC_DATA_SIZE);
+    assert(strncmp(output_data, 
+                   "foo1 >>>>> Content for URL [url1] <<<<< bar1\n"
+                   "foo2 >>>>> Content for URL [url2] <<<<< bar2\n"
+                   ">>>>> Content for URL [blah bleh] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 21) invalidly expanding url" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:include src=$(HTTP_HOST) /> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::FAILURE);
+    assert(output_data_len == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 22) vars node with simple expression" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:vars>HTTP_HOST</esi:vars> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 17);
+    assert(strncmp(output_data, "foo HTTP_HOST bar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 23) vars node expression with valid variable" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:vars>$(HTTP_HOST)</esi:vars> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8);
+    assert(strncmp(output_data, "foo  bar", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 24) vars node with invalid expression" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:vars>$(HTTP_HOST</esi:vars> bar");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 8);
+    assert(strncmp(output_data, "foo  bar", output_data_len) == 0);
+  }
+ 
+  {
+    cout << endl << "===================== Test 25) choose-when" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:choose>"
+                      "<esi:when test=foo>"
+                      "<esi:include src=foo />"
+                      "</esi:when>"
+                      "<esi:when test=bar>"
+                      "<esi:include src=bar />"
+                      "</esi:when>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    const char *output_data;
+    int output_data_len=0;
+    
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == FETCHER_STATIC_DATA_SIZE + 3);
+    assert(strncmp(output_data, ">>>>> Content for URL [foo] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 26) choose-when" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:choose>"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>"
+                      "</esi:choose>");
+    const char *output_data;
+    int output_data_len=0;
+    
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == FETCHER_STATIC_DATA_SIZE + 9);
+    assert(strncmp(output_data, ">>>>> Content for URL [otherwise] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 27) try block" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == FETCHER_STATIC_DATA_SIZE + 7);
+    assert(strncmp(output_data, ">>>>> Content for URL [attempt] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 28) try block" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::FAILURE);
+    data_fetcher.setReturnData(true);
+    assert(output_data_len == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 29) try block" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    data_fetcher.setReturnData(true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == FETCHER_STATIC_DATA_SIZE + 6);
+    assert(strncmp(output_data, ">>>>> Content for URL [except] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 30) try block" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "except"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    data_fetcher.setReturnData(true);
+    assert(output_data_len == 6);
+    assert(strncmp(output_data, "except", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 31) try block" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:include src=pre />"
+                      "foo"
+                      "<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:include src=attempt />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:include src=except />"
+                      "</esi:except>"
+                      "</esi:try>"
+                      "bar");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    data_fetcher.setReturnData(true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == FETCHER_STATIC_DATA_SIZE + 3 + 3 + FETCHER_STATIC_DATA_SIZE + 6 + 3);
+    assert(strncmp(output_data,
+                   ">>>>> Content for URL [pre] <<<<<foo>>>>> Content for URL [except] <<<<<bar",
+                   output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 32) html comment node" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:include src=helloworld />"
+                      "foo"
+                      "<!--esi <esi:vars>blah</esi:vars>-->"
+                      "bar");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == FETCHER_STATIC_DATA_SIZE + 10 + 3 + 4 + 3);
+    assert(strncmp(output_data,
+                   ">>>>> Content for URL [helloworld] <<<<<fooblahbar",
+                   output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 33) invalid html comment node" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:include src=helloworld />"
+                      "foo"
+                      "<!--esi <esi:vars>blah</esi:var>-->"
+                      "bar");
+
+    assert(esi_proc.completeParse(input_data) == false);
+  }
+
+  {
+    cout << endl << "===================== Test 34) choose-when" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:choose>\n\t"
+                      "<esi:when test=foo>"
+                      "\t<esi:include src=foo />"
+                      "</esi:when>\n"
+                      "<esi:when test=bar>"
+                      "<esi:include src=bar />"
+                      "</esi:when>\n"
+                      "<esi:otherwise>"
+                      "<esi:include src=otherwise />"
+                      "</esi:otherwise>\n"
+                      "</esi:choose>");
+    const char *output_data;
+    int output_data_len=0;
+    
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 1 + FETCHER_STATIC_DATA_SIZE + 3);
+    assert(strncmp(output_data, "\t>>>>> Content for URL [foo] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 35) special-include 1" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:special-include handler=stub/>");
+    gHandlerMap.clear();
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(gHandlerMap.size() == 1);
+    assert(gHandlerMap.begin()->first == "stub");
+    StubIncludeHandler *handler = gHandlerMap["stub"];
+    assert(handler->parseCompleteCalled == false);
+    assert(esi_proc.completeParse() == true);
+    assert(handler->parseCompleteCalled == true);
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == StubIncludeHandler::DATA_PREFIX_SIZE + 1);
+    assert(strncmp(output_data, "Special data for include id 1", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 36) special-include 2" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:special-include handler=stub/> <esi:special-include handler=stub/> bar");
+    gHandlerMap.clear();
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(gHandlerMap.size() == 1);
+    assert(gHandlerMap.begin()->first == "stub");
+    StubIncludeHandler *handler = gHandlerMap["stub"];
+    assert(handler->parseCompleteCalled == false);
+    assert(esi_proc.completeParse() == true);
+    assert(handler->parseCompleteCalled == true);
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == (4 + StubIncludeHandler::DATA_PREFIX_SIZE + 1 + 1 +
+                               StubIncludeHandler::DATA_PREFIX_SIZE + 1 + 4));
+    assert(strncmp(output_data, "foo Special data for include id 1 Special data for include id 2 bar",
+                   output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 37) special-include 3" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("foo <esi:special-include handler=ads/> <esi:special-include handler=udb/> bar");
+    gHandlerMap.clear();
+    assert(esi_proc.addParseData(input_data) == true);
+    assert(gHandlerMap.size() == 2);
+    assert(gHandlerMap.find(string("ads")) != gHandlerMap.end());
+    assert(gHandlerMap.find(string("udb")) != gHandlerMap.end());
+    StubIncludeHandler *ads_handler = gHandlerMap["ads"];
+    StubIncludeHandler *udb_handler = gHandlerMap["udb"];
+    assert(ads_handler->parseCompleteCalled == false);
+    assert(udb_handler->parseCompleteCalled == false);
+    assert(esi_proc.completeParse() == true);
+    assert(ads_handler->parseCompleteCalled == true);
+    assert(udb_handler->parseCompleteCalled == true);
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == (4 + StubIncludeHandler::DATA_PREFIX_SIZE + 1 + 1 +
+                               StubIncludeHandler::DATA_PREFIX_SIZE + 1 + 4));
+    assert(strncmp(output_data, "foo Special data for include id 1 Special data for include id 1 bar",
+                   output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 38) special-include negative" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:special-include handler=stub/>");
+    gHandlerMap.clear();
+    StubIncludeHandler::includeResult = false;
+    assert(esi_proc.addParseData(input_data) == false);
+    assert(gHandlerMap.size() == 1); // it'll still be created
+    assert(gHandlerMap.begin()->first == "stub");
+    StubIncludeHandler::includeResult = true;
+  }
+
+  {
+    cout << endl << "===================== Test 39) try block with special include" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == StubIncludeHandler::DATA_PREFIX_SIZE + 1);
+    assert(strncmp(output_data, "Special data for include id 1", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 40) try block with special include" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::FAILURE);
+    data_fetcher.setReturnData(true);
+    assert(output_data_len == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 41) try block with special include" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    data_fetcher.setReturnData(true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == StubIncludeHandler::DATA_PREFIX_SIZE + 1);
+    assert(strncmp(output_data, "Special data for include id 2", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 42) special include try block" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "except"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    assert(esi_proc.completeParse(input_data) == true);
+
+     // this is to make the StubHandler return failure
+    data_fetcher.setReturnData(false);
+    
+     // this is to decrement HttpDataFetcher's pending request count - argument content doesn't matter
+    data_fetcher.getContent("blah", output_data, output_data_len);
+
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    data_fetcher.setReturnData(true);
+    assert(output_data_len == 6);
+    assert(strncmp(output_data, "except", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 43) comment tag" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:comment text=\"bleh\"/>");
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 44) using packed node list" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiParser parser("parser", &Debug, &Error);
+    DocNodeList node_list;
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+    assert(parser.parse(node_list, input_data) == true);
+
+    string packedNodeList = node_list.pack();
+
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+
+    assert(esi_proc.usePackedNodeList(packedNodeList) == EsiProcessor::PROCESS_SUCCESS);
+    const char *output_data;
+    int output_data_len=0;
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    data_fetcher.setReturnData(true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == StubIncludeHandler::DATA_PREFIX_SIZE + 1);
+    assert(strncmp(output_data, "Special data for include id 2", output_data_len) == 0);
+
+    esi_proc.stop();
+    node_list.clear();
+    input_data = 
+      "<esi:choose>\n\t"
+      "<esi:when test=foo>"
+      "\t<esi:include src=foo />"
+      "</esi:when>\n"
+      "<esi:when test=bar>"
+      "<esi:include src=bar />"
+      "</esi:when>\n"
+      "<esi:otherwise>"
+      "<esi:include src=otherwise />"
+      "</esi:otherwise>\n"
+      "</esi:choose>";
+    assert(parser.parse(node_list, input_data) == true);
+    packedNodeList = node_list.pack();
+    assert(esi_proc.usePackedNodeList(packedNodeList) == EsiProcessor::PROCESS_SUCCESS);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 1 + FETCHER_STATIC_DATA_SIZE + 3);
+    assert(strncmp(output_data, "\t>>>>> Content for URL [foo] <<<<<", output_data_len) == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 45) using packed node list" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:comment text=\"bleh\"/>");
+
+    EsiParser parser("parser", &Debug, &Error);
+    DocNodeList node_list;
+    string input_data2("<esi:try>"
+                       "<esi:attempt>"
+                       "<esi:special-include handler=stub />"
+                       "</esi:attempt>"
+                       "<esi:except>"
+                       "<esi:special-include handler=stub />"
+                       "</esi:except>"
+                       "</esi:try>");
+    assert(parser.parse(node_list, input_data2) == true);
+
+    string packedNodeList = node_list.pack();
+
+    
+    const char *output_data;
+    int output_data_len=0;
+
+    assert(esi_proc.addParseData(input_data.c_str(), input_data.size()) == true);
+    assert(esi_proc.usePackedNodeList(packedNodeList) == EsiProcessor::PROCESS_IN_PROGRESS);
+    assert(esi_proc.completeParse() == true);
+    assert(esi_proc.usePackedNodeList(packedNodeList) == EsiProcessor::PROCESS_IN_PROGRESS);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == 0);
+  }
+
+  {
+    cout << endl << "===================== Test 46) special include with footer" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+
+    const char *output_data;
+    int output_data_len=0;
+    StubIncludeHandler::FOOTER = "<!--footer-->";
+    StubIncludeHandler::FOOTER_SIZE = strlen(StubIncludeHandler::FOOTER);
+    assert(esi_proc.completeParse(input_data) == true);
+    data_fetcher.setReturnData(false);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::NEED_MORE_DATA);
+    data_fetcher.setReturnData(true);
+    assert(esi_proc.process(output_data, output_data_len) == EsiProcessor::SUCCESS);
+    assert(output_data_len == StubIncludeHandler::DATA_PREFIX_SIZE + 1 + StubIncludeHandler::FOOTER_SIZE);
+    assert(strncmp(output_data, "Special data for include id 2",
+                   output_data_len - StubIncludeHandler::FOOTER_SIZE) == 0);
+    assert(strncmp(output_data + StubIncludeHandler::DATA_PREFIX_SIZE + 1, StubIncludeHandler::FOOTER,
+                   StubIncludeHandler::FOOTER_SIZE) == 0);
+    StubIncludeHandler::FOOTER = 0;
+    StubIncludeHandler::FOOTER_SIZE = 0;
+  }
+
+  {
+    cout << endl << "===================== Test 47) using packed node list" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiParser parser("parser", &Debug, &Error);
+    DocNodeList node_list;
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+    assert(parser.parse(node_list, input_data) == true);
+
+    string packedNodeList = node_list.pack();
+
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+
+    assert(esi_proc.usePackedNodeList(0, packedNodeList.size()) == EsiProcessor::UNPACK_FAILURE);
+  }
+
+  {
+    cout << endl << "===================== Test 48) using packed node list" << endl;
+    TestHttpDataFetcher data_fetcher;
+    EsiParser parser("parser", &Debug, &Error);
+    DocNodeList node_list;
+    string input_data("<esi:try>"
+                      "<esi:attempt>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:attempt>"
+                      "<esi:except>"
+                      "<esi:special-include handler=stub />"
+                      "</esi:except>"
+                      "</esi:try>");
+    assert(parser.parse(node_list, input_data) == true);
+
+    string packedNodeList = node_list.pack();
+
+    EsiProcessor esi_proc("processor", "parser", "expression", &Debug, &Error, data_fetcher, esi_vars,
+                          handler_mgr);
+
+    assert(esi_proc.usePackedNodeList(packedNodeList.data(), 0) == EsiProcessor::UNPACK_FAILURE);
+  }
+
+  cout << endl << "All tests passed!" << endl;
+  return 0;
+}
diff --git a/plugins/experimental/esi/test/sampleProb.cc b/plugins/experimental/esi/test/sampleProb.cc
new file mode 100644
index 00000000..a303e0d0
--- /dev/null
+++ b/plugins/experimental/esi/test/sampleProb.cc
@@ -0,0 +1,228 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <time.h>
+#include <stdint.h>
+#include <iostream>
+#include <utility>
+#include <vector>
+#include <map>
+#include <sys/time.h>
+using namespace std;
+
+static int windowSize=200;//ms
+static int totalDuration=2000;//seconds
+static int lowerCutOff=300;
+static int higherCutOff=1000;
+
+class FailureInfo
+{
+public:
+
+    FailureInfo()
+    {
+        gettimeofday(&_start,NULL);
+        _totalSlot=totalDuration/windowSize;//INtegral multiple
+        _marker=0;
+        for(int i=0;i<_totalSlot;i++)
+            _passFail.push_back(make_pair(0,0));
+
+        _avgOverWindow=0;
+        _windowPassed=0;
+    };
+
+    ~FailureInfo() 
+    {
+    }
+    
+    //Whenever the window time expires u start filling the count
+    //by taking a mod
+    //so what u get is over a window of 200 ms and 10 rounds
+    //the no of failures
+    //Introduce a variable which will be a function of
+    //failure and which will lead to points in graph 
+    //according to which the probability of serving the 
+    // data from cache or contacting the origin server
+    // will be decided
+    std::vector <std::pair < double,double > > _passFail;
+
+    int _marker;
+
+    int _totalSlot;
+    
+    struct timeval _start;
+
+    double _avgOverWindow;
+
+    int _windowPassed;
+
+};
+
+
+typedef std::map<std::string,class FailureInfo*> FailureData;
+
+void registerSuccFail(string URL,FailureData& data,bool isSuccess)
+{
+    struct timeval currTime,result,startTime;
+    int marker;
+    FailureData::iterator it;
+    it=data.find(URL);
+    vector < pair < double , double > > & passFail=it->second->_passFail;
+    marker=it->second->_marker;
+ 
+ 
+    startTime=it->second->_start;  
+     
+    gettimeofday(&currTime,NULL);
+    
+    timersub(&currTime,&startTime,&result);
+
+
+
+    if( ( result.tv_sec*1000000+result.tv_usec )   > (windowSize*1000) )
+    {
+        marker=++marker%it->second->_totalSlot;
+        if(marker==it->second->_totalSlot-1)
+        {
+            ++it->second->_windowPassed;
+            double avg=0;
+            for(int i=0;i<it->second->_totalSlot;i++)
+            {
+                if(passFail[i].first >0)
+                {
+                    avg+=passFail[i].first/(passFail[i].first+passFail[i].second);
+                }
+            }
+            it->second->_avgOverWindow+=avg/it->second->_windowPassed;
+        }
+        it->second->_marker=marker;
+        gettimeofday(&it->second->_start,NULL);
+    }
+    
+
+   if(isSuccess)
+   {
+       passFail[marker].second++;
+   }
+   
+   else
+   {
+       passFail[marker].first++;
+   }
+}
+
+    
+bool isAttemptReq(string URL,FailureData& data)
+{
+    FailureData::iterator it;
+    it=data.find(URL);
+    if(it != data.end())
+    {
+        double avg=0;
+        vector < pair < double , double > > & passFail=it->second->_passFail;
+
+        for(int i=0;i<it->second->_totalSlot;i++)
+        {
+            //cout<<"Failure:"<<passFail[i].first<< "Total"<< (passFail[i].first+passFail[i].second )<<endl;
+            if(passFail[i].first >0)
+            {
+                avg+=passFail[i].first/(passFail[i].first+passFail[i].second);
+                //cout<<"Prob of faillure:"<<passFail[i].first/(passFail[i].first+passFail[i].second)<<endl;
+            }
+        }
+ 
+       if(avg)
+       { 
+           avg=avg/it->second->_totalSlot;
+           double prob;
+
+        
+           if(avg*1000<lowerCutOff)
+           {
+               prob=avg;
+           }
+ 
+        
+           else
+           {
+               double mapFactor=( ( (avg*1000-lowerCutOff)*(avg*1000-lowerCutOff) ) / ( higherCutOff-lowerCutOff ) )+lowerCutOff;
+               prob=mapFactor/1000;
+               cout<<prob<<endl;
+           }
+
+           if(prob==1)
+           {
+               prob=it->second->_avgOverWindow;
+               cout<<"Average"<<prob<<endl;
+           }
+        
+           int decision=rand()%100;
+
+      
+           if(decision<prob*100)
+               return false;
+        
+           return true;
+       }
+       return true;
+
+    }
+    else
+    {
+        FailureInfo* info=new FailureInfo();
+        data[URL]=info;
+        return true;
+    }
+}
+
+
+const std::string fetchURL="www.example.com";
+int main(int argc,char**argv)
+{
+    //Simulate the scenario
+    FailureData data;
+    int noOfAttempt=0,noOfExcept=0;
+
+    int count=atoi(argv[1]); 
+    while(count--)
+    {
+        int decision=rand()%100;
+
+        if(isAttemptReq(fetchURL,data))
+        {
+            noOfAttempt++;
+            if(decision>=atoi(argv[2]) && 0)
+                registerSuccFail(fetchURL,data,true);
+    
+            else
+                registerSuccFail(fetchURL,data,false);
+        }
+        else
+            noOfExcept++;
+   
+    }
+
+    cout<<" SERVED FROM ATTEMPT "<<noOfAttempt<<" TOTAL "<<atoi(argv[1])<<endl;
+    cout<<" SERVED FROM EXCEPT "<<noOfExcept<<" TOTAL "<<atoi(argv[1])<<endl;
+       
+}
diff --git a/plugins/experimental/esi/test/utils_test.cc b/plugins/experimental/esi/test/utils_test.cc
new file mode 100644
index 00000000..469d5a84
--- /dev/null
+++ b/plugins/experimental/esi/test/utils_test.cc
@@ -0,0 +1,119 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream>
+#include <assert.h>
+#include <string>
+
+#include "print_funcs.h"
+#include "Utils.h"
+
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::string;
+using namespace EsiLib;
+
+void checkAttributes(const char *check_id, const AttributeList &attr_list, const char *attr_info[]) {
+  cout << check_id << ": checking attributes" << endl;
+  AttributeList::const_iterator iter = attr_list.begin();
+  for (int i = 0; attr_info[i]; i += 2, ++iter) {
+    assert(iter->name_len == static_cast<int>(strlen(attr_info[i])));
+    assert(strncmp(iter->name, attr_info[i], iter->name_len) == 0);
+    assert(iter->value_len == static_cast<int>(strlen(attr_info[i + 1])));
+    assert(strncmp(iter->value, attr_info[i + 1], iter->value_len) == 0);
+  }
+  assert(iter == attr_list.end());
+}
+
+pthread_key_t threadKey;
+
+int main() 
+{
+  pthread_key_create(&threadKey, NULL);
+  Utils::init(&Debug, &Error);
+
+  AttributeList attr_list;
+
+  string str1("pos=SKY spaceid=12123");
+  Utils::parseAttributes(str1, attr_list);
+  const char *expected_strs1[] = { "pos", "SKY", "spaceid", "12123", 0 };
+  checkAttributes("test1", attr_list, expected_strs1);
+
+  string str2("  pos=SKY	  spaceid=12123 ");
+  Utils::parseAttributes(str2, attr_list);
+  const char *expected_strs2[] = { "pos", "SKY", "spaceid", "12123", 0 };
+  checkAttributes("test2", attr_list, expected_strs2);
+
+  string str3("  pos=\"SKY\"	  spaceid=12123 ");
+  Utils::parseAttributes(str3, attr_list);
+  const char *expected_strs3[] = { "pos", "SKY", "spaceid", "12123", 0 };
+  checkAttributes("test3", attr_list, expected_strs3);
+
+  string str4("  pos=\" SKY BAR \"	  spaceid=12123 blah=\"foo");
+  Utils::parseAttributes(str4, attr_list);
+  const char *expected_strs4[] = { "pos", " SKY BAR ", "spaceid", "12123", 0 };
+  checkAttributes("test4", attr_list, expected_strs4);
+
+  string str5("a=\"b & xyz\"&c=d&e=f&g=h\"");
+  Utils::parseAttributes(str5, attr_list, "&");
+  const char *expected_strs5[] = { "a", "b & xyz", "c", "d", "e", "f", 0 };
+  checkAttributes("test5", attr_list, expected_strs5);
+
+  string str6("abcd=&");
+  Utils::parseAttributes(str6, attr_list, "&");
+  const char *expected_strs6[] = { 0 };
+  checkAttributes("test6", attr_list, expected_strs6);
+
+  string str7("&& abcd=& key1=val1 &=val2&val3&&");
+  Utils::parseAttributes(str7, attr_list, "&");
+  const char *expected_strs7[] = { "key1", "val1", 0 };
+  checkAttributes("test7", attr_list, expected_strs7);
+  
+  const char *escaped_sequence = "{\\\"site-attribute\\\":\\\"content=no_expandable; ajax_cert_expandable\\\"}";
+  string str8("pos=\"FPM1\" spaceid=96584352 extra_mime=\"");
+  str8.append(escaped_sequence);
+  str8.append("\" foo=bar a=\"b\"");
+  const char *expected_strs8[] = {
+    "pos", "FPM1", "spaceid", "96584352", "extra_mime", escaped_sequence, "foo", "bar", "a", "b", 0
+  };
+  Utils::parseAttributes(str8, attr_list);
+  checkAttributes("test8", attr_list, expected_strs8);
+
+  assert(Utils::unescape(escaped_sequence) ==
+         "{\"site-attribute\":\"content=no_expandable; ajax_cert_expandable\"}");
+  assert(Utils::unescape(0) == "");
+  assert(Utils::unescape("\\", 0) == "");
+  assert(Utils::unescape("\\hello\"", 3) == "he");
+  assert(Utils::unescape("\\hello\"", -3) == "");
+  assert(Utils::unescape("hello") == "hello");
+
+  string str9("n1=v1; n2=v2;, n3=v3, ;n4=v4=extrav4");
+  Utils::parseAttributes(str9, attr_list, ";,");
+  const char *expected_strs9[] = { "n1", "v1", "n2", "v2", "n3", "v3", "n4", "v4=extrav4", 0 };
+  checkAttributes("test9", attr_list, expected_strs9);
+
+  cout << endl << "All tests passed!" << endl;
+  return 0;
+}
+  
diff --git a/plugins/experimental/esi/test/vars_test.cc b/plugins/experimental/esi/test/vars_test.cc
new file mode 100644
index 00000000..c420bc34
--- /dev/null
+++ b/plugins/experimental/esi/test/vars_test.cc
@@ -0,0 +1,405 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include <stdio.h>
+#include <iostream>
+#include <assert.h>
+#include <string>
+#include <stdarg.h>
+
+#include "print_funcs.h"
+#include "Variables.h"
+#include "Expression.h"
+#include "Utils.h"
+
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::string;
+using namespace EsiLib;
+
+pthread_key_t threadKey;
+
+void
+addToHeaderList(const char *strings[], HttpHeaderList &headers) {
+  for (int i = 0; strings[i]; i += 2) {
+    if (i % 4 == 0) {
+      headers.push_back(HttpHeader(strings[i], -1, strings[i + 1], -1));
+      headers.push_back(HttpHeader());
+    } else {
+      headers.push_back(HttpHeader(strings[i], strlen(strings[i]),
+                                   strings[i + 1], strlen(strings[i + 1])));
+    }
+  }
+}
+
+string gFakeDebugLog;
+
+void
+fakeDebug(const char *tag, const char *fmt, ...) {
+  static const int LINE_SIZE = 1024;
+  char buf[LINE_SIZE];
+  va_list ap;
+  va_start(ap, fmt);
+  vsnprintf(buf, LINE_SIZE, fmt, ap);
+  printf("Debug (%s): %s\n", tag, buf);
+  va_end(ap);
+  gFakeDebugLog.append(buf);
+}
+
+int main() 
+{
+  pthread_key_create(&threadKey, NULL);
+  Utils::init(&Debug, &Error);
+
+  {
+    cout << endl << "===================== Test 1" << endl;
+    Variables esi_vars("vars_test", &Debug, &Error);
+    const char *strings[] = { "Cookie", "; c1=v1; c2=v2; ;   c3; c4=;    c5=v5  ",
+                              "Host", "example.com",
+                              "Referer", "google.com",
+                              "Blah", "Blah",
+                              "Accept-Language", "en-gb , en-us ,  ,",
+                              "Accept-Language", "ka-in",
+                              0 };
+
+    HttpHeaderList headers;
+    addToHeaderList(strings, headers);
+    esi_vars.populate(headers);
+    esi_vars.populate("a=b&c=d&e=f");
+
+    assert(esi_vars.getValue("HTTP_COOKIE{c1}") == "v1");
+    assert(esi_vars.getValue("HTTP_COOKIE{c2}") == "v2");
+    assert(esi_vars.getValue("HTTP_COOKIE{c3}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c4}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c5}") == "v5");
+    assert(esi_vars.getValue("HTTP_COOKIE{c2}") != "v1");
+    assert(esi_vars.getValue("HTTP_COOKIE{C1}") != "v1");
+    assert(esi_vars.getValue("HTTP_USER_AGENT").size() == 0);
+    assert(esi_vars.getValue("BLAH").size() == 0);
+    assert(esi_vars.getValue("HTTP_HOST") == "example.com");
+    assert(esi_vars.getValue("HTTP_host") == "example.com");
+    assert(esi_vars.getValue("HTTP_REFERER") == "google.com");
+    assert(esi_vars.getValue("HTTP_BLAH").size() == 0);
+    assert(esi_vars.getValue("HTTP_ACCEPT_LANGUAGE{en-gb}") == "true");
+    assert(esi_vars.getValue("HTTP_ACCEPT_LANGUAGE{en-us}") == "true");
+    assert(esi_vars.getValue("HTTP_ACCEPT_LANGUAGE{es-us}") == "");
+    assert(esi_vars.getValue("QUERY_STRING") == "a=b&c=d&e=f");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "b");
+    assert(esi_vars.getValue("QUERY_STRING{e}") == "f");
+    assert(esi_vars.getValue("QUERY_STRING{z}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1") == "");
+    assert(esi_vars.getValue("HTTP_COOKIEc1") == "");
+    assert(esi_vars.getValue("HTTP_COOKIEc1}") == "");
+    assert(esi_vars.getValue("{c1}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1{c2}}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1{c2}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1c}2}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1c2}") == "");
+    assert(esi_vars.getValue("{c1c2}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1}c") == "");
+    esi_vars.populate(HttpHeader("hosT", -1, "localhost", -1));
+    assert(esi_vars.getValue("HTTP_HOST") == "localhost");
+
+    esi_vars.populate(HttpHeader("User-agent", -1, 
+                                 "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.6) "
+                                 "Gecko/20091201 Firefox/3.5.6 (.NETgecko CLR 3.5.30729)", -1));
+
+    /*
+    assert(esi_vars.getValue("HTTP_USER_AGENT{vendor}") == "Gecko");
+    assert(esi_vars.getValue("HTTP_USER_AGENT{platform}") == "windows_xp");
+    assert(esi_vars.getValue("HTTP_USER_AGENT{version}") == "1.9");
+    assert(esi_vars.getValue("HTTP_USER_AGENT{blah}") == "");
+    */
+
+    assert(esi_vars.getValue("HTTP_ACCEPT_LANGUAGE{ka-in}") == "true");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING") == "");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "");
+    assert(esi_vars.getValue("HTTP_COOKIE{c1}") == "");
+    esi_vars.populate(headers);
+    esi_vars.populate("a=b&c=d&e=f");
+
+    Expression esi_expr("vars_test", &Debug, &Error, esi_vars);
+    assert(esi_expr.expand(0) == "");
+    assert(esi_expr.expand("") == "");
+    assert(esi_expr.expand("blah") == "blah");
+    assert(esi_expr.expand("blah$(HTTP_HOST") == "");
+    assert(esi_expr.expand("blah$A(HTTP_HOST)") == "blah$A(HTTP_HOST)");
+    assert(esi_expr.expand("blah$()") == "blah");
+    assert(esi_expr.expand("blah-$(HTTP_HOST)") == "blah-example.com");
+    assert(esi_expr.expand("blah-$(HTTP_REFERER)") == "blah-google.com");
+    assert(esi_expr.expand("blah-$(HTTP_COOKIE{c1})") == "blah-v1");
+    assert(esi_expr.expand("blah-$(HTTP_COOKIE{c1a})") == "blah-");
+    assert(esi_expr.expand("blah-$(HTTP_COOKIE{c1}$(HTTP_HOST))") == "");
+    assert(esi_expr.expand("blah-$(HTTP_COOKIE{c1})-$(HTTP_HOST)") == "blah-v1-example.com");
+    assert(esi_expr.expand("$()") == "");
+    assert(esi_expr.expand("$(HTTP_COOKIE{c1})$(HTTP_COOKIE{c2})$(HTTP_HOST)") == "v1v2example.com");
+
+    // quotes
+    assert(esi_expr.expand("'blah") == ""); // unterminated quote
+    assert(esi_expr.expand("\"blah") == ""); // unterminated quote
+    assert(esi_expr.expand("'blah'") == "blah");
+    assert(esi_expr.expand("\"blah\"") == "blah");
+    assert(esi_expr.expand("'$(HTTP_COOKIE{c1})'") == "v1");
+    assert(esi_expr.expand("\"$(HTTP_HOST)\"") == "example.com");
+
+    // leading/trailing whitespace
+    assert(esi_expr.expand("   blah  ") == "blah");
+    assert(esi_expr.expand("   $(HTTP_REFERER) $(HTTP_HOST)  ") == "google.com example.com");
+    assert(esi_expr.expand(" ' foo ' ") == " foo ");
+    assert(esi_expr.expand(" ' foo '") == " foo ");
+    assert(esi_expr.expand("bar ") == "bar");
+
+    // evaluate tests
+    assert(esi_expr.evaluate("foo") == true);
+    assert(esi_expr.evaluate("") == false);
+    assert(esi_expr.evaluate("$(HTTP_HOST)") == true);
+    assert(esi_expr.evaluate("$(HTTP_XHOST)") == false);
+    assert(esi_expr.evaluate("foo == foo") == true);
+    assert(esi_expr.evaluate("'foo' == \"foo\"") == true);
+    assert(esi_expr.evaluate("foo == foo1") == false);
+    assert(esi_expr.evaluate("'foo' == \"foo1\"") == false);
+    assert(esi_expr.evaluate("$(HTTP_REFERER) == google.com") == true);
+    assert(esi_expr.evaluate("$(HTTP_HOST)=='example.com'") == true);
+    assert(esi_expr.evaluate("$(HTTP_REFERER) != google.com") == false);
+    assert(esi_expr.evaluate("$(HTTP_HOST)!='example.com'") == false);
+    assert(esi_expr.evaluate("$(HTTP_HOST) == 'facebook.com'") == false);
+    assert(esi_expr.evaluate("!") == true);
+    assert(esi_expr.evaluate("!abc") == false);
+    assert(esi_expr.evaluate("!$(FOO_BAR)") == true);
+    assert(esi_expr.evaluate("!$(HTTP_HOST)") == false);
+    assert(esi_expr.evaluate("abc!abc") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) == 'v1'") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1b}) == 'v1'") == false);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) <= 'v2'") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) < 'v2'") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) >= 'v0'") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) > 'v2'") == false);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) & 'v2'") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{foo}) & $(HTTP_COOKIE{bar})") == false);
+    assert(esi_expr.evaluate("'' | $(HTTP_COOKIE{c1})") == true);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{foo}) | $(HTTP_COOKIE{bar})") == false);
+
+    // default value tests
+    assert(esi_expr.expand("foo|bar") == "foo|bar");
+    assert(esi_expr.expand("$(HTTP_HOST|") == "");
+    assert(esi_expr.expand("$(HTTP_HOST|foo") == "");
+    assert(esi_expr.expand("$(HTTP_HOST|foo)") == "example.com");
+    assert(esi_expr.expand("$(HTTP_XHOST|foo)") == "foo");
+    assert(esi_expr.expand("$(|foo)") == "foo");
+    assert(esi_expr.expand("$(HTTP_ACCEPT_LANGUAGE{en-uk})") == "");
+    assert(esi_expr.expand("$(HTTP_ACCEPT_LANGUAGE{en-uk}|'yes')") == "yes");
+    assert(esi_expr.expand("$(HTTP_ACCEPT_LANGUAGE{en-uk}|'yes with space')") == "yes with space");
+    assert(esi_expr.expand("$(HTTP_ACCEPT_LANGUAGE{en-gb}|'yes')") == "true");
+    assert(esi_expr.expand("$(HTTP_ACCEPT_LANGUAGE{en-gb}|'yes)") == "");
+    assert(esi_expr.expand("$(HTTP_ACCEPT_LANGUAGE{en-uk}|'yes)") == "");
+
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{non-existent}) < 7") == false);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) > $(HTTP_COOKIE{non-existent})") == false);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{non-existent}) <= 7") == false);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) >= $(HTTP_COOKIE{non-existent})") == false);
+
+    // query string tests
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("a");
+    assert(esi_vars.getValue("QUERY_STRING") == "a");
+    assert(esi_vars.getValue("QUERY_STRING{a}").size() == 0);
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("");
+    assert(esi_vars.getValue("QUERY_STRING") == "");
+    assert(esi_vars.getValue("QUERY_STRING{a}").size() == 0);
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("a=b");
+    assert(esi_vars.getValue("QUERY_STRING") == "a=b");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "b");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("a=b&");
+    assert(esi_vars.getValue("QUERY_STRING") == "a=b&");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "b");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("&a=b&");
+    assert(esi_vars.getValue("QUERY_STRING") == "&a=b&");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "b");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("name1=value1&name2=value2&name3=val%32ue");
+    assert(esi_vars.getValue("QUERY_STRING") == "name1=value1&name2=value2&name3=val%32ue");
+    assert(esi_vars.getValue("QUERY_STRING{name1}") == "value1");
+    assert(esi_vars.getValue("QUERY_STRING{name2}") == "value2");
+    assert(esi_vars.getValue("QUERY_STRING{name3}") == "val%32ue");
+    assert(esi_vars.getValue("QUERY_STRING{name4}") == "");
+    assert(esi_vars.getValue("QUERY_STRING{}") == "");
+    assert(esi_vars.getValue("QUERY_STRING{foo}") == "");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("=");
+    assert(esi_vars.getValue("QUERY_STRING") == "=");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("a=&");
+    assert(esi_vars.getValue("QUERY_STRING") == "a=&");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("=b&");
+    assert(esi_vars.getValue("QUERY_STRING") == "=b&");
+    assert(esi_vars.getValue("QUERY_STRING{a}") == "");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("foo=bar&blah=&");
+    assert(esi_vars.getValue("QUERY_STRING") == "foo=bar&blah=&");
+    assert(esi_vars.getValue("QUERY_STRING{foo}") == "bar");
+    assert(esi_vars.getValue("QUERY_STRING{blah}") == "");
+
+    esi_vars.clear();
+    assert(esi_vars.getValue("QUERY_STRING").size() == 0);
+    esi_vars.populate("=blah&foo=bar");
+    assert(esi_vars.getValue("QUERY_STRING") == "=blah&foo=bar");
+    assert(esi_vars.getValue("QUERY_STRING{foo}") == "bar");
+    assert(esi_vars.getValue("QUERY_STRING{blah}") == "");
+  }
+
+  {
+    cout << endl << "===================== Test 2" << endl;
+    gFakeDebugLog.assign("");
+    Variables esi_vars("vars_test", &fakeDebug, &Error);
+
+    esi_vars.populate(HttpHeader("Host", -1, "example.com", -1));
+    esi_vars.populate(HttpHeader("Referer", -1, "google.com", -1));
+    const char *PARSING_DEBUG_MESSAGE = "Parsing headers";
+    assert(gFakeDebugLog.find(PARSING_DEBUG_MESSAGE) >= gFakeDebugLog.size()); // shouldn't have parsed yet
+
+    assert(esi_vars.getValue("HTTP_HOST") == "example.com");
+    size_t str_pos = gFakeDebugLog.find(PARSING_DEBUG_MESSAGE);
+    assert(str_pos < gFakeDebugLog.size()); // should've parsed now
+
+    assert(esi_vars.getValue("HTTP_REFERER") == "google.com");
+    assert(gFakeDebugLog.rfind(PARSING_DEBUG_MESSAGE) == str_pos); // shouldn't have parsed again
+
+    esi_vars.populate(HttpHeader("Host", -1, "localhost", -1));
+    assert(esi_vars.getValue("HTTP_HOST") == "localhost");
+    assert(gFakeDebugLog.rfind(PARSING_DEBUG_MESSAGE) == str_pos); // should not have parsed all headers
+    assert(esi_vars.getValue("HTTP_HOST") == "localhost"); // only this one
+    assert(esi_vars.getValue("HTTP_REFERER") == "google.com");
+
+    esi_vars.clear();
+    esi_vars.populate(HttpHeader("Host", -1, "home", -1));
+    assert(esi_vars.getValue("HTTP_HOST") == "home");
+    assert(gFakeDebugLog.rfind(PARSING_DEBUG_MESSAGE) != str_pos); // should have parsed again
+    assert(esi_vars.getValue("HTTP_REFERER") == "");
+  }
+
+  {
+    cout << endl << "===================== Test 3" << endl;
+    Variables esi_vars("vars_test", &Debug, &Error);
+
+    esi_vars.populate(HttpHeader("Host", -1, "example.com", -1));
+    esi_vars.populate(HttpHeader("Referer", -1, "google.com", -1));
+    esi_vars.populate(HttpHeader("Cookie", -1, "age=21; grade=-5; avg=4.3; t1=\" \"; t2=0.0", -1));
+    esi_vars.populate(HttpHeader("Cookie", -1, "t3=-0; t4=0; t5=6", -1));
+
+    Expression esi_expr("vars_test", &Debug, &Error, esi_vars);
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{age}) >= -9"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{age}) > 9"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{age}) < 22"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{age}) <= 22.1"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{age}) > 100a")); // non-numerical
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{t1})")); // non-numerical
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{grade})"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{grade}) == -5"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{grade}) != -5.1"));
+    assert(esi_expr.evaluate("!$(HTTP_COOKIE{t2})"));
+    assert(esi_expr.evaluate("!$(HTTP_COOKIE{t3})"));
+    assert(esi_expr.evaluate("!$(HTTP_COOKIE{t4})"));
+    assert(esi_expr.evaluate("+4.3 == $(HTTP_COOKIE{avg})"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{grade}) < -0x2"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{t2}) | 1"));
+    assert(!esi_expr.evaluate("$(HTTP_COOKIE{t3}) & 1"));
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{t5}) == 6"));
+
+    string strange_cookie("c1=123");
+    strange_cookie[4] = '\0';
+    esi_vars.populate(HttpHeader("Cookie", -1, strange_cookie.data(), strange_cookie.size()));
+    assert(esi_vars.getValue("HTTP_COOKIE{c1}").size() == 3);
+    assert(esi_vars.getValue("HTTP_COOKIE{c1}")[1] == '\0');
+    assert(esi_expr.evaluate("$(HTTP_COOKIE{c1}) != 1"));
+  }
+
+  {
+    cout << endl << "===================== Test 4" << endl;
+    Variables esi_vars("vars_test", &Debug, &Error);
+    string cookie_str("FPS=dl; mb=d=OPsv7rvU4FFaAOoIRi75BBuqdMdbMLFuDwQmk6nKrCgno7L4xuN44zm7QBQJRmQSh8ken6GSVk8-&v=1; C=mg=1; Y=v=1&n=fmaptagvuff50&l=fc0d94i7/o&p=m2f0000313000400&r=8j&lg=en-US&intl=us; F=a=4KvLV9IMvTJnIAqCk25y9Use6hnPALtUf3n78PihlcIqvmzoW.Ax8UyW8_oxtgFNrrdmooqZmPa7WsX4gE.6sI69wuNwRKrRPFT29h9lhwuxxLz0RuQedVXhJhc323Q-&b=8gQZ"); // TODO - might need to 
+    esi_vars.populate(HttpHeader("Cookie", -1, cookie_str.data(), cookie_str.size()));
+
+    assert(esi_vars.getValue("HTTP_COOKIE{FPS}") == "dl");
+    assert(esi_vars.getValue("HTTP_COOKIE{mb}") ==
+           "d=OPsv7rvU4FFaAOoIRi75BBuqdMdbMLFuDwQmk6nKrCgno7L4xuN44zm7QBQJRmQSh8ken6GSVk8-&v=1");
+    assert(esi_vars.getValue("HTTP_COOKIE{Y;n}") == "fmaptagvuff50");
+    assert(esi_vars.getValue("HTTP_COOKIE{Y;l}") == "fc0d94i7/o");
+    assert(esi_vars.getValue("HTTP_COOKIE{Y;intl}") == "us");
+    assert(esi_vars.getValue("HTTP_COOKIE{C}") == "mg=1");
+    assert(esi_vars.getValue("HTTP_COOKIE{non-existent}") == "");
+
+    assert(esi_vars.getValue("HTTP_COOKIE{Y}") ==
+           "v=1&n=fmaptagvuff50&l=fc0d94i7/o&p=m2f0000313000400&r=8j&lg=en-US&intl=us");
+
+    esi_vars.populate(HttpHeader("Host", -1, "www.example.com", -1));
+    assert(esi_vars.getValue("HTTP_COOKIE{F}") == "a=4KvLV9IMvTJnIAqCk25y9Use6hnPALtUf3n78PihlcIqvmzoW."
+           "Ax8UyW8_oxtgFNrrdmooqZmPa7WsX4gE.6sI69wuNwRKrRPFT29h9lhwuxxLz0RuQedVXhJhc323Q-&b=8gQZ");
+    assert(esi_vars.getValue("HTTP_HOST") == "www.example.com");
+
+    esi_vars.populate(HttpHeader("Cookie", -1, "a=b; c=d", -1));
+    assert(esi_vars.getValue("HTTP_COOKIE{Y;intl}") == "us");
+    assert(esi_vars.getValue("HTTP_COOKIE{F}") == "a=4KvLV9IMvTJnIAqCk25y9Use6hnPALtUf3n78PihlcIqvmzoW."
+           "Ax8UyW8_oxtgFNrrdmooqZmPa7WsX4gE.6sI69wuNwRKrRPFT29h9lhwuxxLz0RuQedVXhJhc323Q-&b=8gQZ");
+    assert(esi_vars.getValue("HTTP_COOKIE{a}") == "b");
+    assert(esi_vars.getValue("HTTP_COOKIE{c}") == "d");
+    assert(esi_vars.getValue("HTTP_HOST") == "www.example.com");
+    assert(esi_vars.getValue("HTTP_COOKIE{Y;blah}") == "");
+
+    esi_vars.clear();
+    esi_vars.populate(HttpHeader("Cookie", -1, "Y=junk", -1));
+    assert(esi_vars.getValue("HTTP_COOKIE{Y}") == "junk");
+    assert(esi_vars.getValue("HTTP_COOKIE{Y;intl}") == "");
+  }
+
+  cout << endl << "All tests passed!" << endl;
+  return 0;
+}
diff --git a/plugins/experimental/geoip_acl/Makefile.am b/plugins/experimental/geoip_acl/Makefile.am
new file mode 100644
index 00000000..0b4e4ff7
--- /dev/null
+++ b/plugins/experimental/geoip_acl/Makefile.am
@@ -0,0 +1,26 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+if BUILD_GEOIP_PLUGIN
+
+pkglib_LTLIBRARIES = geoip_acl.la
+geoip_acl_la_SOURCES = acl.cc geoip_acl.cc
+geoip_acl_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+geoip_acl_la_LIBADD = $(GEOIP_LIBS)
+
+endif
diff --git a/plugins/experimental/geoip_acl/Makefile.in b/plugins/experimental/geoip_acl/Makefile.in
new file mode 100644
index 00000000..0bfd29e5
--- /dev/null
+++ b/plugins/experimental/geoip_acl/Makefile.in
@@ -0,0 +1,940 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+@BUILD_GEOIP_PLUGIN_TRUE@pkglib_LTLIBRARIES = geoip_acl.la
+@BUILD_GEOIP_PLUGIN_TRUE@geoip_acl_la_SOURCES = acl.cc geoip_acl.cc
+@BUILD_GEOIP_PLUGIN_TRUE@geoip_acl_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+@BUILD_GEOIP_PLUGIN_TRUE@geoip_acl_la_LIBADD = $(GEOIP_LIBS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/geoip_acl/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/geoip_acl/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
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+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
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+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
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+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+geoip_acl.la: $(geoip_acl_la_OBJECTS) $(geoip_acl_la_DEPENDENCIES) $(EXTRA_geoip_acl_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(geoip_acl_la_LINK) $(am_geoip_acl_la_rpath) $(geoip_acl_la_OBJECTS) $(geoip_acl_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/acl.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geoip_acl.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+
+.cc.obj:
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+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
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+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
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+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
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+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
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+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
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+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+	list='$(am__tagged_files)'; \
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+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
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+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
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+	done
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+install-exec: install-exec-am
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+install-am: all-am
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+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
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+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
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+	install-exec-am install-html install-html-am install-info \
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/geoip_acl/README b/plugins/experimental/geoip_acl/README
new file mode 100644
index 00000000..96942183
--- /dev/null
+++ b/plugins/experimental/geoip_acl/README
@@ -0,0 +1,85 @@
+Apache Traffic Server GeoIP ACLs
+================================
+
+This is a simple ATS plugin for denying (or allowing) requests based on the
+source IP geo-location. Currently only the Maxmind APIs are supported, but
+we'd be happy to other other (open) APIs if you let us know.
+
+
+Building
+========
+
+The build and installation requires a full installation of Apache Traffic
+Server v3.0.0 or later. A prerequisite for this is an installation of the
+MaxMind GeoIP libraries and include files. E.g. GeoIP-devel.
+
+    
+Configuration
+=============
+
+Once installed, there are three primary use cases, which we will discuss in
+details. Note that in all configurations, the first plugin parameter must
+specify what the matches should be applied to. Currently, only one rule set
+is supported, for Country ISO codes. This is specified with a parameter of
+
+   @pparam=country
+
+
+Future additions to this plugin could include other regions, such as city,
+state, continent etc.
+
+The three typical use cases are as follows:
+
+1. Per remap configurations, applicable to the entire remap rule. This is
+useful when you can partition your content so that entire prefix paths
+should be filtered. For example, lets assume that http://example.com/music
+is restricted to US customers only, and everything else is world wide
+accessible. In remap.config, you would have something like
+
+    map http://example.com/music http://music.example.com \
+        @plugin=geoip_acl.so @pparam=country @pparam=allow @pparam=US
+
+    map http://example.com  http://other.example.com
+
+2. If you can not partition the data with a path prefix, you can specify a
+separate regex mapping filter. The remap.config file might then look like
+
+    map http://example.com http://music.example.com \
+        @plugin=geoip_acl.so @pparam=country @pparam=regex::/etc/music.regex
+
+
+where music.regex is a format with PCRE (perl compatible) regular
+expressions, and unique rules for match. E.g.
+
+    .*\.mp3	 allow	US
+    .*\.ogg	 deny	US
+
+
+Note that the default in the case of no matches on the regular expressions
+is to "allow" the request. This can be overriden, see next use case.
+
+
+3. You can also combine 1) and 2), and provide defaults in the remap.config
+configuration, which then applies for the cases where no regular expressions
+matches at all. This would be useful to override the default which is to
+allow all requests that don't match. For example
+
+
+    map http://example.com http://music.example.com \
+        @plugin=geoip_acl.so @pparam=country @pparam=allow @pparam= US \
+        @pparam=regex::/etc/music.regex 
+
+
+This tells the plugin that in the situation where there is no matching
+regular expression, only allow requests originating from the US.
+
+
+Finally, there's one additional parameter option that can be used:
+
+    @pparam=html::/some/path.html
+
+
+This will override the default reponse body for the denied responses with a
+custom piece of HTML. This can be useful to explain to your users why they
+are getting denied access to a particular piece of content. This
+configuration can be used with any of the use cases described above.
diff --git a/plugins/experimental/geoip_acl/acl.cc b/plugins/experimental/geoip_acl/acl.cc
new file mode 100644
index 00000000..90bbe79a
--- /dev/null
+++ b/plugins/experimental/geoip_acl/acl.cc
@@ -0,0 +1,248 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#include <arpa/inet.h>
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "acl.h"
+#include "lulu.h"
+
+// Global GeoIP object.
+GeoIP* gGI;
+
+// Implementation of the ACL base class.
+void
+Acl::read_html(const char* fn)
+{
+  std::ifstream f;
+
+  f.open(fn, std::ios::in);
+  if (f.is_open()) {
+    _html.append(std::istreambuf_iterator<char>(f), std::istreambuf_iterator<char>());
+    f.close();
+    TSDebug(PLUGIN_NAME, "Loaded HTML from %s", fn);
+  } else {
+    TSError("Unable to open HTML file %s", fn);
+  }
+}
+
+
+// Implementations for the RegexAcl class
+bool
+RegexAcl::parse_line(const char* filename, const std::string& line, int lineno)
+{
+  static const char _SEPARATOR[] = " \t\n";
+  std::string regex, tmp;
+  std::string::size_type pos1, pos2;
+
+  if (line.empty())
+    return false;
+  pos1 = line.find_first_not_of(_SEPARATOR);
+  if (line[pos1] == '#' || pos1 == std::string::npos)
+    return false;
+
+  pos2 = line.find_first_of(_SEPARATOR, pos1);
+  if (pos2 != std::string::npos) {
+    regex = line.substr(pos1, pos2-pos1);
+    pos1 = line.find_first_not_of(_SEPARATOR, pos2);
+    if (pos1 != std::string::npos) {
+      pos2 = line.find_first_of(_SEPARATOR, pos1);
+      if (pos2 != std::string::npos) {
+        tmp = line.substr(pos1, pos2-pos1);
+        if (tmp == "allow")
+          _acl->set_allow(true);
+        else if (tmp == "deny")
+          _acl->set_allow(false);
+        else {
+          TSError("Bad action on in %s:line %d: %s", filename, lineno, tmp.c_str());
+          return false;
+        }
+        // The rest are "tokens"
+        while ((pos1 = line.find_first_not_of(_SEPARATOR, pos2)) != std::string::npos) {
+          pos2 = line.find_first_of(_SEPARATOR, pos1);
+          tmp = line.substr(pos1, pos2-pos1);
+          _acl->add_token(tmp);
+        }
+        compile(regex, filename, lineno);
+        TSDebug(PLUGIN_NAME, "Added regex rule for /%s/", regex.c_str());
+        return true;
+      }
+    }
+  }
+
+  return false;
+}
+
+bool
+RegexAcl::compile(const std::string& str, const char* filename, int lineno)
+{
+  const char* error;
+  int erroffset;
+  
+  _regex_s = str;
+  _rex = pcre_compile(_regex_s.c_str(), 0, &error, &erroffset, NULL);
+
+  if (NULL != _rex) {
+    _extra = pcre_study(_rex, 0, &error);
+    if ((NULL == _extra) && error && (*error != 0)) {
+      TSError("Failed to study regular expression in %s:line %d at offset %d: %s\n", filename, lineno, erroffset, error);
+      return false;
+    }
+  } else {
+    TSError("Failed to compile regular expression in %s:line %d: %s\n", filename, lineno, error);
+    return false;
+  }
+
+  return true;
+}
+
+void
+RegexAcl::append(RegexAcl* ra)
+{
+  if (NULL == _next) {
+    _next = ra;
+  } else {
+    RegexAcl* cur = _next;
+
+    while (cur->_next)
+      cur = cur->_next;
+    cur->_next = ra;
+  }
+}
+
+
+
+// Implementation of the Country ACL class.
+void
+CountryAcl::add_token(const std::string& str)
+{
+  int iso = -1;
+
+  Acl::add_token(str);
+  iso = GeoIP_id_by_code(str.c_str());
+
+  if (iso > 0 && iso < NUM_ISO_CODES) {
+    _iso_country_codes[iso] = true;
+    TSDebug(PLUGIN_NAME, "Added %s(%d) to remap rule, ACL=%d", str.c_str(), iso, _allow);
+  } else {
+    TSError("Tried setting an ISO code (%d) outside the supported range", iso);
+  }
+}
+
+void
+CountryAcl::read_regex(const char* fn)
+{
+  std::ifstream f;
+  int lineno = 0;
+
+  f.open(fn, std::ios::in);
+  if (f.is_open()) {
+    std::string line;
+    RegexAcl* acl = NULL;
+
+    while (!f.eof()) {
+      getline(f, line);
+      ++lineno;
+      if (!acl)
+        acl = new RegexAcl(new CountryAcl());
+      if (acl->parse_line(fn, line, lineno)) {
+        if (NULL == _regexes)
+          _regexes = acl;
+        else
+          _regexes->append(acl);
+        acl = NULL;
+      }
+    }
+    f.close();
+    TSDebug(PLUGIN_NAME, "Loaded regex rules from %s", fn);
+  } else {
+    TSError("Unable to open regex file %s", fn);
+  }
+}
+
+bool
+CountryAcl::eval(TSRemapRequestInfo *rri, TSHttpTxn txnp) const
+{
+  // If there are regex rules, they take priority first. If a regex matches, we will
+  // honor it's eval() rule. If no regexes matches, fall back on the default (which is
+  // "allow" if nothing else is specified).
+  if (NULL != _regexes) {
+    RegexAcl* acl = _regexes;
+    int path_len;
+    const char* path = TSUrlPathGet(rri->requestBufp, rri->requestUrl, &path_len);
+
+    do {
+      if (acl->match(path, path_len)) {
+        TSDebug(PLUGIN_NAME, "Path = %.*s matched /%s/", path_len, path, acl->get_regex().c_str());
+        return acl->eval(rri, txnp);
+      }
+    } while ((acl = acl->next()));
+  }
+
+  // This is a special case for when there are no ISO codes. It got kinda wonky without it.
+  if (0 == _added_tokens)
+    return _allow;
+
+  // None of the regexes (if any) matched, so fallback to the remap defaults if there are any.
+  int iso = -1;
+  const sockaddr* addr = TSHttpTxnClientAddrGet(txnp);
+
+  switch (addr->sa_family) {
+  case AF_INET:
+    {
+      uint32_t ip = ntohl(reinterpret_cast<const struct sockaddr_in *>(addr)->sin_addr.s_addr);
+
+      iso = GeoIP_id_by_ipnum(gGI, ip);
+      if (TSIsDebugTagSet(PLUGIN_NAME)) {
+        const char* c = GeoIP_country_code_by_ipnum(gGI, ip);
+        TSDebug(PLUGIN_NAME, "eval(): IP=%u seems to come from ISO=%d / %s", ip, iso, c);
+      }
+    }
+    break;
+  case AF_INET6:
+    return true;
+  default:
+    break;
+  }
+
+  if ((iso <= 0) || (!_iso_country_codes[iso]))
+    return !_allow;
+    
+  return _allow;
+}
+
+
+void
+CountryAcl::process_args(int argc, char* argv[])
+{
+  for(int i=3; i < argc; ++i) {
+    if (!strncmp(argv[i], "allow", 5)) {
+      _allow = true;
+    } else if (!strncmp(argv[i], "deny", 4)) {
+      _allow = false;
+    } else if (!strncmp(argv[i], "regex::", 7)) {
+      read_regex(argv[i] + 7);
+    } else if (!strncmp(argv[i], "html::", 6)) {
+      read_html(argv[i]+ 6);
+    } else { // ISO codes assumed for the rest
+      add_token(argv[i]);
+    }
+  }
+}
diff --git a/plugins/experimental/geoip_acl/acl.h b/plugins/experimental/geoip_acl/acl.h
new file mode 100644
index 00000000..ee7657a7
--- /dev/null
+++ b/plugins/experimental/geoip_acl/acl.h
@@ -0,0 +1,130 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#include <stdio.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+#include <pcre.h>
+
+#include <string>
+
+#include "lulu.h"
+
+#if HAVE_GEOIP_H
+#include <GeoIP.h>
+#endif
+
+extern GeoIP* gGI;
+
+// See http://www.iso.org/iso/english_country_names_and_code_elements
+// Maxmind allocates 253 country codes,even though there are only 248 according to the above
+static const int NUM_ISO_CODES = 253;
+
+
+// Base class for all ACLs
+class Acl
+{
+public:
+  Acl()
+    : _allow(true), _added_tokens(0)
+  { }
+
+  virtual ~Acl()
+  { }
+
+  // These have to be implemented for each ACL type
+  virtual void read_regex(const char* fn) = 0;
+  virtual void process_args(int argc, char* argv[]) = 0;
+  virtual bool eval(TSRemapRequestInfo *rri, TSHttpTxn txnp) const = 0;
+
+  virtual void add_token(const std::string& /* str */) { ++_added_tokens; }
+  void set_allow(bool allow) { _allow = allow; }
+
+  void send_html(TSHttpTxn txnp) const
+  {
+    if (_html.size() > 0) {
+      char* msg = TSstrdup(_html.c_str());
+
+      TSHttpTxnErrorBodySet(txnp, msg, _html.size(), NULL); // Defaults to text/html
+    }
+  }
+
+  void read_html(const char* fn);
+
+protected:
+  std::string _html;
+  bool _allow;
+  int _added_tokens;
+};
+
+
+// Base class for all Regex ACLs (which contain Acl() subclassed instances)
+class RegexAcl
+{
+public:
+  RegexAcl(Acl* acl)
+    : _next(NULL), _acl(acl)
+  { }
+
+  const std::string& get_regex() const { return _regex_s; };
+  bool eval(TSRemapRequestInfo *rri, TSHttpTxn txnp) const { return _acl->eval(rri, txnp); }
+  RegexAcl* next() const { return _next; }
+
+  bool match(const char* str, int len) const
+  {
+    // TODO: Not 100% sure this is absolutely correct, and not sure why adding
+    // PCRE_NOTEMPTY to the options doesn't work ...
+    if (0 == len)
+      return false;
+    return (pcre_exec(_rex, _extra, str, len, 0, PCRE_NOTEMPTY, NULL, 0) != -1);
+  }
+
+  void append(RegexAcl* ra);
+  bool parse_line(const char* filename, const std::string& line, int lineno);
+
+private:
+  bool compile(const std::string& str, const char* filename, int lineno);
+  std::string _regex_s;
+  pcre* _rex;
+  pcre_extra* _extra;
+  RegexAcl *_next;
+  Acl* _acl;
+};
+
+
+// ACLs based on ISO country codes.
+class CountryAcl : public Acl
+{
+public:
+  CountryAcl()
+    : _regexes(NULL)
+  {
+    memset(_iso_country_codes, 0, sizeof(_iso_country_codes));
+  }
+
+  void read_regex(const char* fn);
+  void process_args(int argc, char* argv[]);
+  bool eval(TSRemapRequestInfo *rri, TSHttpTxn txnp) const;
+  void add_token(const std::string& str);
+
+private:
+  bool _iso_country_codes[NUM_ISO_CODES];
+  RegexAcl* _regexes;
+};
diff --git a/plugins/experimental/geoip_acl/examples b/plugins/experimental/geoip_acl/examples
new file mode 100644
index 00000000..77ea5517
--- /dev/null
+++ b/plugins/experimental/geoip_acl/examples
@@ -0,0 +1,40 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+@plugin=geoip_acl.so @pparam=country @pparam=deny @pparam=US @pparam=SE
+
+-- or --
+
+@plugin=geoip_acl.so @pparam=country @pparam=regex::/tmp/foo.conf @pparam=html::/tmp/foo.html
+
+foo.conf:
+
+.*\.exe		deny	SE
+[a-z]/foo	allow	US UK SE
+.		deny	SE
+
+
+-- or --
+
+@plugin=geoip_acl.so @pparam=country @pparam=deny @pparam=SE @pparam=regex::/tmp/foo.conf
+
+foo.conf:
+
+.*\.exe		deny	SE
+[a-z]/foo	allow	US UK SE
+.		deny	SE
diff --git a/plugins/experimental/geoip_acl/geoip_acl.cc b/plugins/experimental/geoip_acl/geoip_acl.cc
new file mode 100644
index 00000000..87e4d035
--- /dev/null
+++ b/plugins/experimental/geoip_acl/geoip_acl.cc
@@ -0,0 +1,127 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+// 
+// Main entry points for the plugin hooks etc.
+//
+#include <ts/ts.h>
+#include <ts/remap.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "lulu.h"
+#include "acl.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin as a remap plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
+{
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    strncpy(errbuf, "[tsremap_init] - Incorrect size of TSRemapInterface structure", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[tsremap_init] - Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  //gGI = GeoIP_new(GEOIP_STANDARD); // This seems to break on threaded apps
+  gGI = GeoIP_new(GEOIP_MMAP_CACHE);
+
+  TSDebug(PLUGIN_NAME, "remap plugin is successfully initialized");
+  return TS_SUCCESS;                     /* success */
+}
+
+
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** ih, char* /* errbuf */, int /* errbuf_size */)
+{
+  if (argc < 3) {
+    TSError("Unable to create remap instance, need more parameters");
+    return TS_ERROR;
+  } else {
+    Acl* a = NULL;
+
+    if (!strncmp(argv[2], "country", 11)) {
+      TSDebug(PLUGIN_NAME, "creating an ACL rule with ISO country codes");
+      a = new CountryAcl();
+    }
+
+    if (a) {
+      a->process_args(argc, argv);
+      *ih = static_cast<void*>(a);
+    } else {
+      TSError("Unable to create remap instance, no supported ACL specified as first parameter");
+      return TS_ERROR;
+    }
+  }
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  Acl* a = static_cast<Acl*>(ih);
+
+  delete a;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Main entry point when used as a remap plugin.
+//
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
+{
+  if (NULL == ih) {
+    TSDebug(PLUGIN_NAME, "No ACLs configured, this is probably a plugin bug");
+  } else {
+    Acl* a = static_cast<Acl*>(ih);
+
+    if (!a->eval(rri, rh)) {
+      TSHttpTxnSetHttpRetStatus((TSHttpTxn)rh, (TSHttpStatus)403);
+      a->send_html((TSHttpTxn)rh);
+    }
+  }
+
+  return TSREMAP_NO_REMAP;
+}
+
+
+/*
+  local variables:
+  mode: C++
+  indent-tabs-mode: nil
+  c-basic-offset: 2
+  c-comment-only-line-offset: 0
+  c-file-offsets: ((statement-block-intro . +)
+  (label . 0)
+  (statement-cont . +)
+  (innamespace . 0))
+  end:
+
+  Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
+*/
diff --git a/plugins/experimental/geoip_acl/lulu.h b/plugins/experimental/geoip_acl/lulu.h
new file mode 100644
index 00000000..0ede84b3
--- /dev/null
+++ b/plugins/experimental/geoip_acl/lulu.h
@@ -0,0 +1,52 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+// 
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __LULU_H__
+#define __LULU_H__ 1
+
+#include <sys/types.h>
+
+#include "ink_defs.h"
+#include "ink_atomic.h"
+
+// Used for Debug etc.
+static const char* PLUGIN_NAME = "geoip_acl";
+
+#endif // __LULU_H__
+
+
+
+/*
+  local variables:
+  mode: C++
+  indent-tabs-mode: nil
+  c-basic-offset: 2
+  c-comment-only-line-offset: 0
+  c-file-offsets: ((statement-block-intro . +)
+  (label . 0)
+  (statement-cont . +)
+  (innamespace . 0))
+  end:
+
+  Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
+*/
diff --git a/plugins/experimental/healthchecks/Makefile.am b/plugins/experimental/healthchecks/Makefile.am
new file mode 100644
index 00000000..9af3a5ed
--- /dev/null
+++ b/plugins/experimental/healthchecks/Makefile.am
@@ -0,0 +1,25 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+if BUILD_HEALTHCHECK_PLUGIN
+
+pkglib_LTLIBRARIES = healthchecks.la
+healthchecks_la_SOURCES = healthchecks.c
+healthchecks_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+endif
diff --git a/plugins/experimental/healthchecks/Makefile.in b/plugins/experimental/healthchecks/Makefile.in
new file mode 100644
index 00000000..4b135dfc
--- /dev/null
+++ b/plugins/experimental/healthchecks/Makefile.in
@@ -0,0 +1,939 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp README
+subdir = plugins/experimental/healthchecks
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
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+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
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+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+@BUILD_HEALTHCHECK_PLUGIN_TRUE@pkglib_LTLIBRARIES = healthchecks.la
+@BUILD_HEALTHCHECK_PLUGIN_TRUE@healthchecks_la_SOURCES = healthchecks.c
+@BUILD_HEALTHCHECK_PLUGIN_TRUE@healthchecks_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/healthchecks/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/healthchecks/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+healthchecks.la: $(healthchecks_la_OBJECTS) $(healthchecks_la_DEPENDENCIES) $(EXTRA_healthchecks_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(healthchecks_la_LINK) $(am_healthchecks_la_rpath) $(healthchecks_la_OBJECTS) $(healthchecks_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/healthchecks.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+
+.c.obj:
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+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
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+	done
+install: install-am
+install-exec: install-exec-am
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+install-am: all-am
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+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
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+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
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+dvi: dvi-am
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+info: info-am
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+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
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+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
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+	uninstall-pkglibLTLIBRARIES
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/healthchecks/README b/plugins/experimental/healthchecks/README
new file mode 100644
index 00000000..e3e97911
--- /dev/null
+++ b/plugins/experimental/healthchecks/README
@@ -0,0 +1,21 @@
+This is a simple plugin, to provide basic (but configurable) health checks.
+This is a server intercept plugin, and it takes one single  configuration
+option in plugin.config, the configuration file name. 
+
+This configuration contains one, or several, lines of the format
+
+   <URI-path> <file-path> <mime> <file-exists-code> <file-missing-code>
+
+The URI-path can *not* be "/" only.
+
+
+Examples:
+
+   /__hc  /var/run/ts-alive  text/plain 200  403
+
+
+The content of the file, if any, is sent as the body of the response. The
+existence of the file is sufficient to get an "OK" status. Performance wise,
+everything is served out of memory, and it only stats / opens files as
+necessary. However, the content of the status file is limited to 16KB, so
+this is not a generic static file serving plugin.
diff --git a/plugins/experimental/healthchecks/healthchecks.c b/plugins/experimental/healthchecks/healthchecks.c
new file mode 100644
index 00000000..89ee7a95
--- /dev/null
+++ b/plugins/experimental/healthchecks/healthchecks.c
@@ -0,0 +1,585 @@
+/** @file
+
+This is an origin server / intercept plugin, which implements flexible health checks.
+
+@section license
+
+Copyright 2012 Go Daddy Operating Company, LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <limits.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <inttypes.h>
+
+/* ToDo: Linux specific */
+#include <sys/inotify.h>
+#include <libgen.h>
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+static const char PLUGIN_NAME[] = "healthchecks";
+static const char SEPARATORS[] = " \t\n";
+
+#define MAX_PATH_LEN  4096
+#define MAX_FILENAME_LEN 2048
+#define MAX_BODY_LEN 16384
+#define FREELIST_TIMEOUT 300
+
+/* Some atomic stuff, from ATS core */
+typedef volatile void *vvoidp;
+
+static inline
+void *ink_atomic_swap_ptr(vvoidp mem, void *value)
+{
+  return __sync_lock_test_and_set((void**)mem, value);
+}
+
+/* Directories that we are watching for inotify IN_CREATE events. */
+typedef struct HCDirEntry_t
+{
+  char dname[MAX_FILENAME_LEN];   /* Directory name */
+  int wd;                         /* Watch descriptor */
+  struct HCDirEntry_t *_next;     /* Linked list */
+} HCDirEntry;
+
+/* Information about a status file. This is never modified (only replaced, see HCFileInfo_t) */
+typedef struct HCFileData_t
+{
+  int exists;                     /* Does this file exist */
+  char body[MAX_BODY_LEN];        /* Body from fname. NULL means file is missing */
+  int b_len;                      /* Length of data */
+  time_t remove;                  /* Used for deciding when the old object can be permanently removed */
+  struct HCFileData_t *_next;     /* Only used when these guys end up on the freelist */
+} HCFileData;
+
+/* The only thing that should change in this struct is data, atomically swapping ptrs */
+typedef struct HCFileInfo_t
+{
+  char fname[MAX_FILENAME_LEN];   /* Filename */
+  char *basename;                 /* The "basename" of the file */
+  char path[MAX_PATH_LEN];        /* URL path for this HC */
+  int p_len;                      /* Length of path */
+  const char *ok;                 /* Header for an OK result */
+  int o_len;                      /* Length of OK header */
+  const char *miss;               /* Header for miss results */
+  int m_len;                      /* Length of miss header */
+  HCFileData *data;               /* Holds the current data for this health check file */
+  int wd;                         /* Watch descriptor */
+  HCDirEntry *dir;                /* Reference to the directory this file resides in */
+  struct HCFileInfo_t *_next;     /* Linked list */
+} HCFileInfo;
+
+/* Global configuration */
+HCFileInfo *g_config;
+
+/* State used for the intercept plugin. ToDo: Can this be improved ? */
+typedef struct HCState_t
+{
+  TSVConn net_vc;
+  TSVIO read_vio;
+  TSVIO write_vio;
+
+  TSIOBuffer req_buffer;
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  int output_bytes;
+
+  /* We actually need both here, so that our lock free switches works safely */
+  HCFileInfo *info;
+  HCFileData *data;
+} HCState;
+
+/* Read / check the status files */
+static
+void
+reload_status_file(HCFileInfo *info, HCFileData *data)
+{
+  struct stat buf;
+
+  memset(data, 0, sizeof(HCFileData));
+  if (!stat(info->fname, &buf)) {
+    FILE *fd;
+
+    if (NULL != (fd = fopen(info->fname, "r"))) {
+      data->exists = 1;
+      do {
+        data->b_len = fread(data->body, 1, MAX_BODY_LEN, fd);
+      } while (!feof(fd)); /*  Only save the last 16KB of the file ... */
+      fclose(fd);
+    }
+  }
+}
+
+/* Find a HCDirEntry from the linked list */
+static HCDirEntry*
+find_direntry(const char *dname, HCDirEntry *dir)
+{
+  while (dir) {
+    if (!strncmp(dname, dir->dname, MAX_FILENAME_LEN))
+      return dir;
+    dir = dir->_next;
+  }
+  return NULL;
+}
+
+/* Setup up watchers, directory as well as initial files */
+static HCDirEntry*
+setup_watchers(int fd)
+{
+  HCFileInfo *conf = g_config;
+  HCDirEntry *head_dir = NULL, *last_dir = NULL, *dir;
+  char fname[MAX_FILENAME_LEN];
+  char *dname;
+
+  while (conf) {
+    conf->wd = inotify_add_watch(fd, conf->fname, IN_DELETE_SELF|IN_CLOSE_WRITE|IN_ATTRIB);
+    TSDebug(PLUGIN_NAME, "Setting up a watcher for %s", conf->fname);
+    strncpy(fname, conf->fname, MAX_FILENAME_LEN - 1);
+    dname = dirname(fname);
+    /* Make sure to only watch each directory once */
+    if (!(dir = find_direntry(dname, head_dir))) {
+      TSDebug(PLUGIN_NAME, "Setting up a watcher for directory %s", dname);
+      dir = TSmalloc(sizeof(HCDirEntry));
+      memset(dir, 0, sizeof(HCDirEntry));
+      strncpy(dir->dname, dname, MAX_FILENAME_LEN - 1);
+      dir->wd = inotify_add_watch(fd, dname, IN_CREATE|IN_MOVED_FROM|IN_MOVED_TO|IN_ATTRIB);
+      if (!head_dir)
+        head_dir = dir;
+      else
+        last_dir->_next = dir;
+      last_dir = dir;
+    }
+    conf->dir = dir;
+    conf = conf->_next;
+  }
+
+  return head_dir;
+}
+
+/* Separate thread to monitor status files for reload */
+#define INOTIFY_BUFLEN (1024 * sizeof(struct inotify_event))
+
+static void *
+hc_thread(void *data ATS_UNUSED)
+{
+  int fd = inotify_init();
+  HCDirEntry *dirs;
+  int len;
+  HCFileData *fl_head = NULL;
+  char buffer[INOTIFY_BUFLEN];
+  struct timeval last_free, now;
+
+  gettimeofday(&last_free, NULL);
+
+  /* Setup watchers for the directories, these are a one time setup */
+  dirs = setup_watchers(fd);
+
+  while (1) {
+    HCFileData *fdata = fl_head, *fdata_prev = NULL;
+
+    /* Read the inotify events, blocking until we get something */
+    len  = read(fd, buffer, INOTIFY_BUFLEN);
+    gettimeofday(&now, NULL);
+
+    /* The fl_head is a linked list of previously released data entries. They
+       are ordered "by time", so once we find one that is scheduled for deletion,
+       we can also delete all entries after it in the linked list. */
+    while (fdata) {
+      if (now.tv_sec > fdata->remove) {
+        /* Now drop off the "tail" from the freelist */
+        if (fdata_prev)
+          fdata_prev->_next = NULL;
+        else
+          fl_head = NULL;
+
+        /* free() everything in the "tail" */
+        do {
+          HCFileData *next = fdata->_next;
+
+          TSDebug(PLUGIN_NAME, "Cleaning up entry from frelist");
+          TSfree(fdata);
+          fdata = next;
+        } while (fdata);
+        break; /* Stop the loop, there's nothing else left to examine */
+      }
+      fdata_prev = fdata;
+      fdata = fdata->_next;
+    }
+
+    if (len >= 0) {
+      int i = 0;
+
+      while (i < len) {
+        struct inotify_event *event = (struct inotify_event *)&buffer[i];
+        HCFileInfo *finfo = g_config;
+
+        while (finfo && !((event->wd == finfo->wd) ||
+                          ((event->wd == finfo->dir->wd) && !strncmp(event->name, finfo->basename, event->len)))) {
+          finfo = finfo->_next;
+        }
+        if (finfo) {
+          HCFileData *new_data = TSmalloc(sizeof(HCFileData));
+          HCFileData *old_data;
+
+          if (event->mask & (IN_CLOSE_WRITE|IN_ATTRIB)) {
+            TSDebug(PLUGIN_NAME, "Modify file event (%d) on %s", event->mask, finfo->fname);
+          } else if (event->mask & (IN_CREATE|IN_MOVED_TO)) {
+            TSDebug(PLUGIN_NAME, "Create file event (%d) on %s", event->mask, finfo->fname);
+            finfo->wd = inotify_add_watch(fd, finfo->fname, IN_DELETE_SELF|IN_CLOSE_WRITE|IN_ATTRIB);
+          } else if (event->mask & (IN_DELETE_SELF|IN_MOVED_FROM)) {
+            TSDebug(PLUGIN_NAME, "Delete file event (%d) on %s", event->mask, finfo->fname);
+            finfo->wd = inotify_rm_watch(fd, finfo->wd);
+          }
+          /* Load the new data and then swap this atomically */
+          memset(new_data, 0, sizeof(HCFileData));
+          reload_status_file(finfo, new_data);
+          TSDebug(PLUGIN_NAME, "Reloaded %s, len == %d, exists == %d", finfo->fname, new_data->b_len, new_data->exists);
+          old_data = ink_atomic_swap_ptr(&(finfo->data), new_data);
+
+          /* Add the old data to the head of the freelist */
+          old_data->remove = now.tv_sec + FREELIST_TIMEOUT;
+          old_data->_next = fl_head;
+          fl_head = old_data;
+        }
+        i += sizeof(struct inotify_event) + event->len;
+      }
+    }
+  }
+
+  /* Cleanup, in case we later exit this thread ... */
+  while (dirs) {
+    HCDirEntry *d = dirs;
+
+    dirs = dirs->_next;
+    TSfree(d);
+  }
+
+  return NULL; /* Yeah, that never happens */
+}
+
+/* Config file parsing */
+static const char HEADER_TEMPLATE[] = "HTTP/1.1 %d %s\r\nContent-Type: %s\r\nCache-Control: no-cache\r\n";
+
+static char *
+gen_header(char *status_str, char *mime, int *header_len)
+{
+  TSHttpStatus status;
+  char * buf = NULL;
+
+  status = atoi(status_str);
+  if (status > TS_HTTP_STATUS_NONE && status < (TSHttpStatus)999) {
+    const char* status_reason;
+    int len = sizeof(HEADER_TEMPLATE) + 3 + 1;
+
+    status_reason = TSHttpHdrReasonLookup(status);
+    len += strlen(status_reason);
+    len += strlen(mime);
+    buf = TSmalloc(len);
+    *header_len = snprintf(buf, len, HEADER_TEMPLATE, status, status_reason, mime);
+  } else {
+    *header_len = 0;
+  }
+
+  return buf;
+}
+
+static HCFileInfo*
+parse_configs(const char* fname)
+{
+  FILE *fd;
+  char buf[2*1024];
+  HCFileInfo *head_finfo = NULL, *finfo = NULL, *prev_finfo = NULL;
+
+  if (NULL == (fd = fopen(fname, "r")))
+    return NULL;
+
+  while (!feof(fd)) {
+    char *str, *save;
+    int state = 0;
+    char *ok=NULL, *miss=NULL, *mime=NULL;
+
+    /* Allocate a new config-info, if we don't have one already */
+    if (!finfo) {
+      finfo = TSmalloc(sizeof(HCFileInfo));
+      memset(finfo, 0, sizeof(HCFileInfo));
+    }
+
+    if (fgets(buf, sizeof(buf) - 1, fd)) {
+      str = strtok_r(buf, SEPARATORS, &save);
+      while (NULL != str) {
+        if (strlen(str) > 0) {
+          switch (state) {
+          case 0:
+            if ('/' == *str)
+              ++str;
+            strncpy(finfo->path, str, MAX_PATH_LEN - 1);
+            finfo->p_len = strlen(finfo->path);
+            break;
+          case 1:
+            strncpy(finfo->fname, str, MAX_FILENAME_LEN - 1);
+            finfo->basename = strrchr(finfo->fname, '/');
+            if (finfo->basename)
+              ++(finfo->basename);
+            break;
+          case 2:
+            mime = str;
+            break;
+          case 3:
+            ok = str;
+            break;
+          case 4:
+            miss = str;
+            break;
+          }
+          ++state;
+        }
+        str = strtok_r(NULL, SEPARATORS, &save);
+      }
+
+      /* Fill in the info if everything was ok */
+      if (state > 4) {
+        TSDebug(PLUGIN_NAME, "Parsed: %s %s %s %s %s", finfo->path, finfo->fname, mime, ok, miss);
+        finfo->ok = gen_header(ok, mime, &finfo->o_len);
+        finfo->miss = gen_header(miss, mime, &finfo->m_len);
+        finfo->data = TSmalloc(sizeof(HCFileData));
+        memset(finfo->data, 0, sizeof(HCFileData));
+        reload_status_file(finfo, finfo->data);
+
+        /* Add it the linked list */
+        TSDebug(PLUGIN_NAME, "Adding path=%s to linked list", finfo->path);
+        if (NULL == head_finfo) {
+          head_finfo = finfo;
+        } else {
+          prev_finfo->_next = finfo;
+        }
+        prev_finfo = finfo;
+        finfo = NULL; /* We used this one up, get a new one next iteration */
+      }
+    }
+  }
+  fclose(fd);
+
+  return head_finfo;
+}
+
+/* Cleanup after intercept has completed */
+static void
+cleanup(TSCont contp, HCState *my_state)
+{
+  if (my_state->req_buffer) {
+    TSIOBufferDestroy(my_state->req_buffer);
+    my_state->req_buffer = NULL;
+  }
+
+  if (my_state->resp_buffer) {
+    TSIOBufferDestroy(my_state->resp_buffer);
+    my_state->resp_buffer = NULL;
+  }
+
+  TSVConnClose(my_state->net_vc);
+  TSfree(my_state);
+  TSContDestroy(contp);
+}
+
+/* Add data to the output */
+inline static int
+add_data_to_resp(const char *buf, int len, HCState *my_state)
+{
+  TSIOBufferWrite(my_state->resp_buffer, buf, len);
+  return len;
+}
+
+/* Process a read event from the SM */
+static void
+hc_process_read(TSCont contp, TSEvent event, HCState *my_state)
+{
+  if (event == TS_EVENT_VCONN_READ_READY) {
+    if (my_state->data->exists) {
+      TSDebug(PLUGIN_NAME, "Setting OK response header");
+      my_state->output_bytes = add_data_to_resp(my_state->info->ok, my_state->info->o_len, my_state);
+    } else {
+      TSDebug(PLUGIN_NAME, "Setting MISS response header");
+      my_state->output_bytes = add_data_to_resp(my_state->info->miss, my_state->info->m_len, my_state);
+    }
+    TSVConnShutdown(my_state->net_vc, 1, 0);
+    my_state->write_vio = TSVConnWrite(my_state->net_vc, contp, my_state->resp_reader, INT64_MAX);
+  } else if (event == TS_EVENT_ERROR) {
+    TSError("hc_process_read: Received TS_EVENT_ERROR\n");
+  } else if (event == TS_EVENT_VCONN_EOS) {
+    /* client may end the connection, simply return */
+    return;
+  } else if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+    TSError("hc_process_read: Received TS_EVENT_NET_ACCEPT_FAILED\n");
+  } else {
+    TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+/* Process a write event from the SM */
+static void
+hc_process_write(TSCont contp, TSEvent event, HCState *my_state)
+{
+  if (event == TS_EVENT_VCONN_WRITE_READY) {
+    char buf[48];
+    int len;
+
+    len = snprintf(buf, sizeof(buf)-1, "Content-Length: %d\r\n\r\n", my_state->data->b_len);
+    my_state->output_bytes += add_data_to_resp(buf, len, my_state);
+    if (my_state->data->b_len > 0)
+      my_state->output_bytes += add_data_to_resp(my_state->data->body, my_state->data->b_len, my_state);
+    else
+      my_state->output_bytes += add_data_to_resp("\r\n", 2, my_state);
+    TSVIONBytesSet(my_state->write_vio, my_state->output_bytes);
+    TSVIOReenable(my_state->write_vio);
+  } else if (TS_EVENT_VCONN_WRITE_COMPLETE) {
+    cleanup(contp, my_state);
+  } else if (event == TS_EVENT_ERROR) {
+    TSError("hc_process_write: Received TS_EVENT_ERROR\n");
+  } else {
+    TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+/* Process the accept event from the SM */
+static void
+hc_process_accept(TSCont contp, HCState *my_state)
+{
+  my_state->req_buffer = TSIOBufferCreate();
+  my_state->resp_buffer = TSIOBufferCreate();
+  my_state->resp_reader = TSIOBufferReaderAlloc(my_state->resp_buffer);
+  my_state->read_vio = TSVConnRead(my_state->net_vc, contp, my_state->req_buffer, INT64_MAX);
+}
+
+/* Imlement the server intercept */
+static int
+hc_intercept(TSCont contp, TSEvent event, void *edata)
+{
+  HCState *my_state = TSContDataGet(contp);
+
+  if (event == TS_EVENT_NET_ACCEPT) {
+    my_state->net_vc = (TSVConn)edata;
+    hc_process_accept(contp, my_state);
+  } else if (edata == my_state->read_vio) { /* All read events */
+    hc_process_read(contp, event, my_state);
+  } else if (edata == my_state->write_vio) { /* All write events */
+    hc_process_write(contp, event, my_state);
+  } else {
+    TSReleaseAssert(!"Unexpected Event");
+  }
+
+  return 0;
+}
+
+/* Read-request header continuation, used to kick off the server intercept if necessary */
+static int
+health_check_origin(TSCont contp ATS_UNUSED, TSEvent event ATS_UNUSED, void *edata)
+{
+  TSMBuffer reqp;
+  TSMLoc hdr_loc = NULL, url_loc = NULL;
+  TSCont icontp;
+  HCState *my_state;
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  HCFileInfo *info = g_config;
+
+  if ((TS_SUCCESS == TSHttpTxnClientReqGet(txnp, &reqp, &hdr_loc)) &&
+      (TS_SUCCESS == TSHttpHdrUrlGet(reqp, hdr_loc, &url_loc))) {
+    int path_len = 0;
+    const char* path = TSUrlPathGet(reqp, url_loc, &path_len);
+
+    /* Short circuit the / path, common case, and we won't allow healthecks on / */
+    if (!path || !path_len)
+      goto cleanup;
+
+    while (info) {
+      if (info->p_len == path_len && !memcmp(info->path, path, path_len)) {
+        TSDebug(PLUGIN_NAME, "Found match for /%.*s", path_len, path);
+        break;
+      }
+      info = info->_next;
+    }
+
+    if (!info)
+      goto cleanup;
+
+    TSSkipRemappingSet(txnp, 1); /* not strictly necessary, but speed is everything these days */
+
+    /* This is us -- register our intercept */
+    icontp = TSContCreate(hc_intercept, TSMutexCreate());
+    my_state = (HCState *)TSmalloc(sizeof(*my_state));
+    memset(my_state, 0, sizeof(*my_state));
+    my_state->info = info;
+    my_state->data = info->data;
+    TSContDataSet(icontp, my_state);
+    TSHttpTxnIntercept(icontp, txnp);
+  }
+
+ cleanup:
+  if (url_loc)
+    TSHandleMLocRelease(reqp, hdr_loc, url_loc);
+  if (hdr_loc)
+    TSHandleMLocRelease(reqp, TS_NULL_MLOC, hdr_loc);
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+
+  return 0;
+}
+
+/* Initialize the plugin / global continuation hook */
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+
+  if (2 != argc) {
+    TSError("Must specify a configuration file.\n");
+    return;
+  }
+
+  info.plugin_name = "health_checks";
+  info.vendor_name = "Apache Software Foundation";
+  info.support_email = "dev@trafficserver.apache.org";
+
+  if (TS_SUCCESS != TSPluginRegister(TS_SDK_VERSION_3_0, &info)) {
+    TSError("Plugin registration failed. \n");
+    return;
+  }
+
+  /* This will update the global configuration file, and is not reloaded at run time */
+  /* ToDo: Support reloading with traffic_line -x  ? */
+  if (NULL == (g_config = parse_configs(argv[1]))) {
+    TSError("Unable to read / parse %s config file", argv[1]);
+    return;
+  }
+
+  /* Setup the background thread */
+  if (!TSThreadCreate(hc_thread, NULL)) {
+    TSError("Failure in thread creation");
+    return;
+  }
+
+  /* Create a continuation with a mutex as there is a shared global structure
+     containing the headers to add */
+  TSDebug(PLUGIN_NAME, "Started %s plugin", PLUGIN_NAME);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, TSContCreate(health_check_origin, NULL));
+}
diff --git a/plugins/experimental/hipes/Makefile.am b/plugins/experimental/hipes/Makefile.am
new file mode 100644
index 00000000..650ce567
--- /dev/null
+++ b/plugins/experimental/hipes/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = hipes.la
+
+hipes_la_SOURCES = hipes.cc
+hipes_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/hipes/Makefile.in b/plugins/experimental/hipes/Makefile.in
new file mode 100644
index 00000000..2e0c1026
--- /dev/null
+++ b/plugins/experimental/hipes/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp README
+subdir = plugins/experimental/hipes
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
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+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
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+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+hipes_la_LIBADD =
+am_hipes_la_OBJECTS = hipes.lo
+hipes_la_OBJECTS = $(am_hipes_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+hipes_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(hipes_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
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+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
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+  -D__STDC_FORMAT_MACROS=1 \
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+  -I$(top_srcdir)/lib/ts
+
+
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/hipes/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/hipes/Makefile
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+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
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+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+hipes.la: $(hipes_la_OBJECTS) $(hipes_la_DEPENDENCIES) $(EXTRA_hipes_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(hipes_la_LINK) -rpath $(pkglibdir) $(hipes_la_OBJECTS) $(hipes_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
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+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hipes.Plo@am__quote@
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+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/hipes/README b/plugins/experimental/hipes/README
new file mode 100644
index 00000000..b12f7227
--- /dev/null
+++ b/plugins/experimental/hipes/README
@@ -0,0 +1,25 @@
+This plugin implements the HIPES system.
+
+Plugin configuration
+--------------------
+
+   server:<host>	Name of the server to send this request to
+   urlp:<name>		Name of the query parameter for the service URL [url]
+   path:<path>		Path to use for the service URL [/]
+   ssl			Use SSL when connecting to the service [no]
+   service		Service server, host[:port]  [no default]
+   server		Name of HIPES server, host[:port]   [hipes.yimg.com]
+   active_timeout	The active connection timeout in ms [no default]
+   no_activity_timeout	The no activity timeout in ms [no default]
+   connect_timeout	The connect timeout in ms [no default]
+   dns_timeout		The DNS timeout [no default]
+
+
+The timeout options override the server defaults (from records.config),
+and only apply to the connection to the specific "service" host.
+
+RELEASES
+--------
+
+Version 1.0 (??/??/10)
+  - First release.
diff --git a/plugins/experimental/hipes/gen_escape.c b/plugins/experimental/hipes/gen_escape.c
new file mode 100644
index 00000000..e1373721
--- /dev/null
+++ b/plugins/experimental/hipes/gen_escape.c
@@ -0,0 +1,49 @@
+/** @file
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#include <stdio.h>
+#include <string.h>
+
+
+int main() {
+  unsigned char codes[32];
+  unsigned char hex;
+  int c;
+
+  memset(codes, 0, sizeof(codes));
+
+  for (c = 0; c <= 255; ++c) {
+    if ( ( (c >= '0') && (c <= '9') ) ||
+         ( (c >= 'A') && (c <= 'Z') ) ||
+         ( (c >= 'a') && (c <= 'z') ) ||
+         ( (c == '_') ) ||
+         ( (c == '-') ) ||
+         ( (c == '.') ) ) {
+    } else {
+      codes[c / 8] |= (1 << (7 - c % 8));
+    }
+  }
+
+  for (hex = 0; hex < 32; ++hex) {
+    printf("0x%02lX, ", codes[hex]);
+    if (!((hex+1) % 4))
+      printf("\n");
+  }
+}
diff --git a/plugins/experimental/hipes/hipes.cc b/plugins/experimental/hipes/hipes.cc
new file mode 100644
index 00000000..03908b7f
--- /dev/null
+++ b/plugins/experimental/hipes/hipes.cc
@@ -0,0 +1,563 @@
+/** @file
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#include <stdio.h>
+#include <sys/time.h>
+#include <string.h>
+#include <stdlib.h>
+#include <string>
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+
+static const char* PLUGIN_NAME = "hipes";
+static const char* HIPES_SERVER_NAME = "hipes.example.com";
+
+static const int MAX_PATH_SIZE = 2048;
+static const int MAX_REDIRECT_URL = 2048;
+
+///////////////////////////////////////////////////////////////////////////////
+// Escape a URL string.
+//
+int
+escapify_url(const char *src, int src_len, char* dst, int dst_len)
+{
+  // This bitmap is generated using the gen_escape.c prog.
+  static unsigned char codes_to_escape[32] = {
+    0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xF9, 0x00, 0x3F, 
+    0x80, 0x00, 0x00, 0x1E, 
+    0x80, 0x00, 0x00, 0x1F, 
+    0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF, 
+    0xFF, 0xFF, 0xFF, 0xFF
+  };
+
+  static char hex_digit[16] = {
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C',
+    'D', 'E', 'F'
+  };
+
+  const char* from = src;
+  char* to = dst;
+  int len = 0;
+
+  // Sanity check
+  if (!src)
+    return -1;
+
+  while (from < (src + src_len)) {
+    unsigned char c = *from;
+
+    if (len >= dst_len)
+      return -1; // Does not fit.... abort!
+
+    if (codes_to_escape[c / 8] & (1 << (7 - c % 8))) {
+      *to++ = '%';
+      *to++ = hex_digit[c / 16];
+      *to++ = hex_digit[c % 16];
+      len += 3;
+    } else {
+      *to++ = *from;
+      ++len;
+    }
+    ++from;
+  }
+  *to = '\0';
+
+  return len;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Unescape a string. Have to make sure the destination buffer is at least as
+// long as the source buffer.
+//
+char*
+unescapify(const char* src, char* dst, int len) {
+  const char* cur = src;
+  char* next;
+  char subStr[3];
+  int size;
+
+  subStr[2] = '\0';
+  while ((next = (char*)memchr(cur, '%', len))) {
+    size = next - cur;
+    if (size > 0) {
+      memcpy(dst, cur, size);
+      dst += size;
+      cur += size;
+      len -= size;
+    }
+
+    if (len > 2  && (*cur+1) != '\0' && *(cur+2) != '\0') {
+      subStr[0] = *(++cur);
+      subStr[1] = *(++cur);
+      len -= 2;
+      *dst = (char)strtol(subStr, (char**)NULL, 16);
+    } else {
+      *dst = *cur;
+    }
+    ++dst;
+    ++cur;
+    --len;
+  }
+
+  if (len > 0) {
+    memcpy(dst, cur, len);
+    dst += len;
+  }
+
+  return dst;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Class encapsulating one service configuration
+//
+struct HIPESService
+{
+  HIPESService()
+    : url_param("url"), path(""), svc_server(""), svc_port(80), ssl(false), hipes_server(HIPES_SERVER_NAME),
+      hipes_port(80), default_redirect_flag(1), x_hipes_header("X-HIPES-Redirect"),
+      active_timeout(-1), no_activity_timeout(-1), connect_timeout(-1), dns_timeout(-1)
+  { };
+
+  std::string url_param;
+  std::string path;
+  std::string svc_server;
+  int svc_port;
+  bool ssl;
+  std::string hipes_server;
+  int hipes_port;
+  unsigned int default_redirect_flag;
+  std::string x_hipes_header;
+  int active_timeout;
+  int no_activity_timeout;
+  int connect_timeout;
+  int dns_timeout;
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[tsremap_init] - Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[tsremap_init] - Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  TSDebug(PLUGIN_NAME, "plugin is successfully initialized");
+  return TS_SUCCESS;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// One instance per remap.config invocation.
+//
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void** ih, char* /* errbuf ATS_UNUSED */, int /* errbuf_size ATS_UNUSED */)
+{
+  HIPESService* ri = new HIPESService();
+
+  *ih = (void*)ri;
+
+  if (ri == NULL) {
+    TSError("Unable to create remap instance");
+    return TS_ERROR;
+  }
+
+  for (int ix=2; ix < argc; ++ix) {
+    std::string arg = argv[ix];
+    std::string::size_type sep = arg.find_first_of(":");
+
+    if (sep == std::string::npos) {
+      TSError("Malformed options in url_remap: %s", argv[ix]);
+    } else {
+      std::string arg_val = arg.substr(sep + 1, std::string::npos);
+
+      if (arg.compare(0, 4, "urlp") == 0) {
+        ri->url_param = arg_val;
+      } else if (arg.compare(0, 4, "path") == 0) {
+        ri->path = arg_val;
+        if (arg_val[0] == '/')
+          ri->path = arg_val.substr(1);
+        else
+          ri->path = arg_val;
+      } else if (arg.compare(0, 3, "ssl") == 0) {
+        ri->ssl = true;
+      } else if (arg.compare(0, 7, "service") == 0) {
+        std::string::size_type port = arg_val.find_first_of(":");
+
+        if (port == std::string::npos) {
+          ri->svc_server = arg_val;
+        } else {
+          ri->svc_server = arg_val.substr(0, port);
+          ri->svc_port = atoi(arg_val.substr(port+1).c_str());
+        }
+      } else if (arg.compare(0, 6, "server") == 0) {
+        std::string::size_type port = arg_val.find_first_of(":");
+
+        if (port == std::string::npos) {
+          ri->hipes_server = arg_val;
+        } else {
+          ri->hipes_server = arg_val.substr(0, port);
+          ri->hipes_port = atoi(arg_val.substr(port+1).c_str());
+        }
+      } else if (arg.compare(0, 14, "active_timeout") == 0) {
+        ri->active_timeout = atoi(arg_val.c_str());
+      } else if (arg.compare(0, 19, "no_activity_timeout") == 0) {
+        ri->no_activity_timeout = atoi(arg_val.c_str());
+      } else if (arg.compare(0, 15, "connect_timeout") == 0) {
+        ri->connect_timeout = atoi(arg_val.c_str());
+      } else if (arg.compare(0, 11, "dns_timeout") == 0) {
+        ri->dns_timeout = atoi(arg_val.c_str());
+      } else {
+        TSError("Unknown url_remap option: %s", argv[ix]);
+      }
+    }
+  }
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  HIPESService* ri = static_cast<HIPESService*>(ih);
+
+  delete ri;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// This is the main "entry" point for the plugin, called for every request.
+//
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
+{
+  const char* slash;
+  char* ptr;
+  HIPESService* h_conf = (HIPESService*)ih;
+
+  char new_query[MAX_PATH_SIZE];
+  int new_query_size;
+  char redirect_url[MAX_REDIRECT_URL];
+  int redirect_url_size;
+
+  if (NULL == h_conf) {
+    TSDebug(PLUGIN_NAME, "Falling back to default URL on URL remap without rules");
+    return TSREMAP_NO_REMAP;
+  }
+
+  int param_len = 0;
+  const char *param = TSUrlHttpParamsGet(rri->requestBufp, rri->requestUrl, &param_len);
+
+  // Make sure we have a matrix parameter, anything without is a bogus request.
+  if (param_len <= 0) {
+    TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST);
+    return TSREMAP_NO_REMAP;
+  }
+
+  if(param_len > MAX_PATH_SIZE) {
+    TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_REQUEST_URI_TOO_LONG);
+    return TSREMAP_NO_REMAP;
+  }
+
+  // If there is a '/' in the matrix parameters, we know there are multiple service requests in
+  // the incoming URL, so nibble off the first one, and pass the rest as a HIPES URL to the service.
+  if ((slash = static_cast<const char*>(memchr(param, '/', param_len)))) {
+    char svc_url[MAX_PATH_SIZE + 1];
+    char svc_url_esc[MAX_PATH_SIZE + 1];
+    int len, query_len;
+
+    // Create the escaped URL, which gets passed over to the service as a url= param.
+    char port[6];
+    snprintf(port, 6, ":%d", h_conf->hipes_port);
+
+    if(h_conf->hipes_port != 80) {
+      len = 8 + h_conf->hipes_server.size() + strlen(port) + (param_len - (slash - param) - 1);
+    } else {
+      len = 8 + h_conf->hipes_server.size() + (param_len - (slash - param) - 1);
+    } 
+    if (len > MAX_PATH_SIZE) {
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_REQUEST_URI_TOO_LONG);
+      return TSREMAP_NO_REMAP;
+    }  
+    if(h_conf->hipes_port != 80) {
+      snprintf(svc_url, MAX_PATH_SIZE, "http://%s%s/%.*s", h_conf->hipes_server.c_str(), port, len, slash + 1);
+    } else {
+      snprintf(svc_url, MAX_PATH_SIZE, "http://%s/%.*s", h_conf->hipes_server.c_str(), len, slash + 1);
+    }
+    TSDebug(PLUGIN_NAME, "Service URL is %s", svc_url);
+
+    len = escapify_url(svc_url, len, svc_url_esc, MAX_PATH_SIZE);
+    if (len < 0) {
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST); 
+      return TSREMAP_NO_REMAP;
+    }
+    TSDebug(PLUGIN_NAME, "Escaped service URL is %s(%d)", svc_url_esc, len);
+
+    // Prepare the new query arguments, make sure it fits
+    if (( (slash - param) + 2 + (int) h_conf->url_param.size() + len) > MAX_PATH_SIZE) {
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_REQUEST_URI_TOO_LONG);
+      return TSREMAP_NO_REMAP;
+    }
+
+    query_len = (slash - param);
+    memcpy(new_query, param, query_len);
+    ptr = new_query;
+    while ((ptr = static_cast<char*>(memchr(ptr, ';', (new_query + query_len) - ptr))))
+      *ptr = '&';
+
+    new_query[query_len++] = '&';
+    memcpy(new_query + query_len, h_conf->url_param.c_str(), h_conf->url_param.size());
+    query_len += h_conf->url_param.size();
+    new_query[query_len++] = '=';
+
+    memcpy(new_query + query_len, svc_url_esc, len);
+    new_query_size = query_len + len;
+    TSDebug(PLUGIN_NAME, "New query is %.*s(%d)", new_query_size, new_query, new_query_size);
+  } else {
+    // This is the "final" step in this HIPES URL, so don't point back to HIPES (or we'll never leave)
+    new_query_size = param_len;
+    memcpy(new_query, param, param_len);
+    ptr = new_query;
+    while ((ptr = static_cast<char*>(memchr(ptr, ';', (new_query + new_query_size) - ptr))))
+      *ptr = '&';
+
+    TSDebug(PLUGIN_NAME, "New query is %.*s(%d)", new_query_size, new_query, new_query_size);
+  }
+
+  // Test if we should redirect or not
+  bool do_redirect = false;
+  int redirect_flag = h_conf->default_redirect_flag;
+  char* pos = new_query;
+
+  while (pos && (pos = (char*)memchr(pos, '_', new_query_size - (pos - new_query)))) {
+    if (pos) {
+      ++pos;
+      if ((new_query_size - (pos - new_query)) < 10) { // redirect=n
+        pos = NULL;
+      } else {
+        if ((*pos == 'r') && (!strncmp(pos, "redirect=", 9))) {
+          redirect_flag = *(pos + 9) - '0';
+          if ((redirect_flag < 0) || (redirect_flag > 2))
+            redirect_flag = h_conf->default_redirect_flag;
+          TSDebug(PLUGIN_NAME, "Found _redirect flag in URL: %d\n", redirect_flag);
+          pos = NULL;
+        }
+      }
+    }
+  }
+
+  if (redirect_flag > 0) {
+    // Now check the incoming request header, and match up.
+    TSMBuffer bufp;
+    TSMLoc hdr_loc, field_loc;
+    bool has_error = false;
+
+    if (TSHttpTxnClientReqGet(rh, &bufp, &hdr_loc) == TS_SUCCESS) {
+      field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, h_conf->x_hipes_header.c_str(), h_conf->x_hipes_header.size());
+      if (field_loc) {
+        int hdr_flag;
+
+        hdr_flag = TSMimeHdrFieldValueIntGet(bufp, hdr_loc, field_loc, 0);
+        // Alright, now match up this header flag with the request (or default) flag
+        TSDebug(PLUGIN_NAME, "Extracted %s header with value %d", h_conf->x_hipes_header.c_str(), hdr_flag);
+        switch (redirect_flag) {
+        case 0:
+          if (hdr_flag == 2) {
+            TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST);
+            has_error = true;
+          } // Everything else is a "no"
+          break;
+        case 1:
+          if (hdr_flag == 2) {
+            do_redirect = true;
+          } // Everything else is a "no"
+          break;
+        case 2:
+          if (hdr_flag == 2) {
+            do_redirect = true;
+          } else {
+            TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST);
+            has_error = true;
+          }
+          break;
+        default:
+          TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST);
+          has_error = true;
+          break;
+        }
+        TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+      } else {
+        if(redirect_flag == 2) {
+          TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST);
+          has_error=true;
+        }
+      }
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    } else {
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_BAD_REQUEST);
+      has_error=true;
+    }
+    if (has_error)
+      return TSREMAP_NO_REMAP;
+  }
+
+  // If we redirect, just generate a 302 URL, otherwise update the RRI struct properly.
+  if (do_redirect) {
+    int len; 
+
+    if (h_conf->ssl) {
+      // https://<host>:<port>/<path>?<query?\0
+      len = 5 + 3 + h_conf->svc_server.size() + 6 + 1 + h_conf->path.size() + 1 + new_query_size + 1;
+    } else {
+      // http://<host>:<port>/<path>?<query?\0
+      len = 4 + 3 + h_conf->svc_server.size() + 6 + 1 + h_conf->path.size() + 1 + new_query_size + 1;
+    }
+
+    if (len > MAX_REDIRECT_URL) {
+      TSError("Redirect in HIPES URL too long");
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_REQUEST_URI_TOO_LONG);
+    } else {
+      int port = -1;
+
+      pos = redirect_url;
+
+      // HTTP vs HTTPS
+      if (h_conf->ssl) {
+        memcpy(pos, "https://", 8);
+        pos += 8;
+        if (h_conf->svc_port != 443)
+          port = h_conf->svc_port;
+      } else {
+        memcpy(pos, "http://", 7);
+        pos += 7;
+        if (h_conf->svc_port != 80)
+          port = h_conf->svc_port;
+      }
+
+      // Server
+      memcpy(pos, h_conf->svc_server.c_str(), h_conf->svc_server.size());
+      pos += h_conf->svc_server.size();
+
+      // Port
+      if (port != -1)
+        pos += snprintf(pos, 6, ":%d", port);
+
+      // Path
+      *(pos++) = '/';
+      if (h_conf->path.size() > 0) {
+        memcpy(pos, h_conf->path.c_str(), h_conf->path.size());
+        pos += h_conf->path.size();
+      }
+
+      // Query
+      if (new_query_size > 0) {
+        *(pos++) = '?';
+        memcpy(pos, new_query, new_query_size);
+        pos += new_query_size;
+      }
+
+      // NULL terminate the URL.
+      *pos = '\0';
+
+      redirect_url_size = pos - redirect_url + 1;
+      TSDebug(PLUGIN_NAME, "Redirecting to %.*s", redirect_url_size, redirect_url);
+      const char *start = redirect_url; 
+      const char *end = start + redirect_url_size;
+      rri->redirect = 1;
+      TSUrlParse(rri->requestBufp, rri->requestUrl, &start, end);  
+      TSHttpTxnSetHttpRetStatus(rh, TS_HTTP_STATUS_MOVED_TEMPORARILY);
+    }
+  } else { // Not a redirect, so proceed normally
+    // Set timeouts (if requested)
+    if (h_conf->active_timeout > -1) {
+      TSDebug(PLUGIN_NAME, "Setting active timeout to %d", h_conf->active_timeout);
+      TSHttpTxnActiveTimeoutSet(rh, h_conf->active_timeout);
+    }
+    if (h_conf->no_activity_timeout > -1) {
+      TSDebug(PLUGIN_NAME, "Setting no activity timeout to %d", h_conf->no_activity_timeout);
+      TSHttpTxnNoActivityTimeoutSet(rh, h_conf->no_activity_timeout);
+    }
+    if (h_conf->connect_timeout > -1) {
+      TSDebug(PLUGIN_NAME, "Setting connect timeout to %d", h_conf->connect_timeout);
+      TSHttpTxnConnectTimeoutSet(rh, h_conf->connect_timeout);
+    }
+    if (h_conf->dns_timeout > -1) {
+      TSDebug(PLUGIN_NAME, "Setting DNS timeout to %d", h_conf->dns_timeout);
+      TSHttpTxnDNSTimeoutSet(rh, h_conf->dns_timeout);
+    }
+
+    // Set server ...
+    TSUrlHostSet(rri->requestBufp, rri->requestUrl, h_conf->svc_server.c_str(), h_conf->svc_server.size()); 
+    TSDebug(PLUGIN_NAME, "New server is %.*s", (int) h_conf->svc_server.size(), h_conf->svc_server.c_str());
+
+    // ... and port
+    TSUrlPortSet(rri->requestBufp, rri->requestUrl, h_conf->svc_port);
+    TSDebug(PLUGIN_NAME, "New port is %d", h_conf->svc_port);
+
+    // Update the path
+    TSUrlPathSet(rri->requestBufp, rri->requestUrl, h_conf->path.c_str(), h_conf->path.size());
+    TSDebug(PLUGIN_NAME, "New path is %.*s", (int) h_conf->path.size(), h_conf->path.c_str());
+
+    // Enable SSL?
+    if (h_conf->ssl)
+      TSUrlSchemeSet(rri->requestBufp, rri->requestUrl, "https", 5);
+
+    // Clear previous matrix params
+    TSUrlHttpParamsSet(rri->requestBufp, rri->requestUrl, "", 0);
+
+    // set query
+    TSUrlHttpQuerySet(rri->requestBufp, rri->requestUrl, new_query, new_query_size);
+  }
+
+  // Step 3: Profit
+  return TSREMAP_DID_REMAP;
+}
+
+
+
+/*
+  local variables:
+  mode: C++
+  indent-tabs-mode: nil
+  c-basic-offset: 2
+  c-comment-only-line-offset: 0
+  c-file-offsets: ((statement-block-intro . +)
+  (label . 0)
+  (statement-cont . +)
+
+  end:
+
+  Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
+*/
diff --git a/plugins/experimental/memcached_remap/AUTHORS b/plugins/experimental/memcached_remap/AUTHORS
new file mode 100644
index 00000000..945968f5
--- /dev/null
+++ b/plugins/experimental/memcached_remap/AUTHORS
@@ -0,0 +1,7 @@
+Author: opensource@navyaprabha.com
+
+memcached_remap plugin
+
+========= CREDITS ===============
+Eric Balsa <ericb@apache.org>
+Original concept via mysql_remap plugin
diff --git a/plugins/experimental/memcached_remap/Changelog b/plugins/experimental/memcached_remap/Changelog
new file mode 100644
index 00000000..3d16c80a
--- /dev/null
+++ b/plugins/experimental/memcached_remap/Changelog
@@ -0,0 +1,2 @@
+1.0.0 20-May-2011
+	* Initial Release for 2.1.8-unstable apache release
diff --git a/plugins/experimental/memcached_remap/NOTICE b/plugins/experimental/memcached_remap/NOTICE
new file mode 100644
index 00000000..c19f064e
--- /dev/null
+++ b/plugins/experimental/memcached_remap/NOTICE
@@ -0,0 +1,5 @@
+Apache Traffic Server
+Copyright 2010 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/plugins/experimental/memcached_remap/README b/plugins/experimental/memcached_remap/README
new file mode 100644
index 00000000..11de80c1
--- /dev/null
+++ b/plugins/experimental/memcached_remap/README
@@ -0,0 +1,122 @@
+Apache Traffic Server Memcached-based remap plugin
+==============================================
+
+This is a plugin which is based on the mysql_remap code (http://svn.apache.org/repos/asf/trafficserver/plugins/mysql_remap/)
+that allows us to do dynamic reverse proxy (dynamic remap) based on the
+information present in the memcached database.
+
+                                     (decision via memcached)
+[Browser] <----> [Apache Traffic Server] <----------> [Backend Servers]
+                                     (decision via memcached)
+
+NOTE: memcached is used only as decision making place. All communication
+happens via HTTP between above components
+
+##################
+#   QUICK HOWTO  #
+##################
+
+The following steps are for Fedora-14 System, same will apply to your
+server too (please change things accordingly, if any)
+
+1. Install memcached
+
+sudo yum install memcached python-memcached
+
+2. Compile and Install the memcached_remap plugin
+
+[user@ memcached_remap]$ gmake
+/usr/local/bin/tsxs -o memcached_remap.so memcached_remap.cc
+  compiling memcached_remap.cc -> memcached_remap.lo
+  linking -> memcached_remap.so
+
+[user@ memcached_remap]$ sudo gmake install
+/usr/local/bin/tsxs -o memcached_remap.so memcached_remap.cc
+  compiling memcached_remap.cc -> memcached_remap.lo
+  linking -> memcached_remap.so
+/usr/local/bin/tsxs -i -o memcached_remap.so
+  installing memcached_remap.so ->
+/usr/local/libexec/trafficserver/memcached_remap.so
+
+3. Start the Traffic Server in Plugin Mode (to debug any issues)
+
+/usr/local/bin/traffic_server -T "memcached_remap"
+
+3. Start the memcached
+
+sudo service memcached
+
+4. Start apache on port 8080 (change configs accordingly)
+
+sudo service httpd start
+
+5. Add some keys into the memcached for testing (via python shell)
+
+[user@ memcached_remap]$ python
+Python 2.7 (r27:82500, Sep 16 2010, 18:02:00) 
+[GCC 4.5.1 20100907 (Red Hat 4.5.1-3)] on linux2
+Type "help", "copyright", "credits" or "license" for more information.
+>>> import memcache
+>>> mc = memcache.Client(['127.0.0.1:11211'], debug=0)
+>>> print mc.get("http://localhost:80/")
+http://localhost:8080/
+>>> print mc.get("http://localhost:80/")
+http://localhost:8080/
+>>> mc.set("http://127.0.0.1:80/", "http://127.0.0.1:8080");
+True
+>>> print mc.get("http://127.0.0.1:80/")
+http://127.0.0.1:8080
+>>> 
+
+6. Do sample query on localhost port 80
+
+[user@ ~]$ curl -v http://127.0.0.1/ -s > /dev/null
+* About to connect() to 127.0.0.1 port 80 (#0)
+*   Trying 127.0.0.1... connected
+* Connected to 127.0.0.1 (127.0.0.1) port 80 (#0)
+> GET / HTTP/1.1
+> User-Agent: curl/7.21.0 (x86_64-redhat-linux-gnu) libcurl/7.21.0
+> NSS/3.12.8.0 zlib/1.2.5 libidn/1.18 libssh2/1.2.4
+> Host: 127.0.0.1
+> Accept: */*
+> 
+< HTTP/1.1 200 OK
+< Date: Wed, 09 Mar 2011 15:48:25 GMT
+< Server: ATS/2.1.6-unstable
+< Last-Modified: Sat, 05 Mar 2011 16:15:13 GMT
+< ETag: "618ef-38b-49dbe914322ed"
+< Accept-Ranges: bytes
+< Content-Length: 907
+< Content-Type: text/html; charset=UTF-8
+< Age: 0
+< Connection: keep-alive
+< 
+{ [data not shown]
+* Connection #0 to host 127.0.0.1 left intact
+* Closing connection #0
+
+7. Thats it !
+
+################################
+#  SUPPORTED KEYS IN MEMCACHED #
+################################
+
+The advantage of memcached is that, its a hash table.
+
+KEY FORMAT:    [PROTOCOL]://[SERVER]:[PORT]/
+--------------------------------------------
+(Even ending / is important!)
+
+PROTOCOL can be any word in a-z, A-Z chars
+SERVER   can be any string which isn't a colon character
+PORT     should be a number
+/        should end with a slash
+
+VALUE FORMAT:  [PROTOCOL]://[SERVER]:[PORT]/
+--------------------------------------------
+(Even ending / is important!)
+
+PROTOCOL can be any word created from a-z, A-Z chars
+SERVER   can be any string which isn't a colon character
+PORT     should be a number
+/        should end with a slash
diff --git a/plugins/experimental/memcached_remap/memcached_remap.cc b/plugins/experimental/memcached_remap/memcached_remap.cc
new file mode 100644
index 00000000..d7495c20
--- /dev/null
+++ b/plugins/experimental/memcached_remap/memcached_remap.cc
@@ -0,0 +1,242 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+// change this on your box
+#include <libmemcached/memcached.h>
+
+// global settings
+static const char *PLUGIN_NAME = "memcached_remap";
+
+// memcached related global variables
+memcached_server_st *servers;
+memcached_st *memc;
+
+bool do_memcached_remap(TSCont contp, TSHttpTxn txnp)
+{
+    TSMBuffer reqp;
+    TSMLoc hdr_loc, url_loc, field_loc;
+    bool ret_val = false;
+
+    const char *request_host;
+    int request_host_length = 0;
+    const char *request_scheme;
+    int request_scheme_length = 0;
+    int request_port = 80;
+    char ikey[1024];
+    char *m_result = NULL;
+    size_t oval_length;
+    uint32_t flags;
+    memcached_return_t lrc;
+
+    if (TSHttpTxnClientReqGet((TSHttpTxn) txnp, &reqp, &hdr_loc) !=
+        TS_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "could not get request data");
+        return false;
+    }
+
+    if (TSHttpHdrUrlGet(reqp, hdr_loc, &url_loc) != TS_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "couldn't retrieve request url");
+        goto release_hdr;
+    }
+
+
+    field_loc =
+        TSMimeHdrFieldFind(reqp, hdr_loc, TS_MIME_FIELD_HOST,
+                           TS_MIME_LEN_HOST);
+
+    if (!field_loc) {
+        TSDebug(PLUGIN_NAME, "couldn't retrieve request HOST header");
+        goto release_url;
+    }
+
+    request_host = TSMimeHdrFieldValueStringGet(reqp, hdr_loc, field_loc, -1, &request_host_length);
+    if (request_host == NULL || strlen(request_host) < 1) {
+        TSDebug(PLUGIN_NAME, "couldn't find request HOST header");
+        goto release_field;
+    }
+
+    request_scheme = TSUrlSchemeGet(reqp, url_loc, &request_scheme_length);
+    request_port = TSUrlPortGet(reqp, url_loc);
+
+    TSDebug(PLUGIN_NAME, "      +++++MEMCACHED REMAP+++++      ");
+
+    TSDebug(PLUGIN_NAME,
+            "\nINCOMING REQUEST ->\n ::: from_scheme_desc: %.*s\n ::: from_hostname: %.*s\n ::: from_port: %d",
+            request_scheme_length, request_scheme, request_host_length,
+            request_host, request_port);
+
+    snprintf(ikey, 1024, "%.*s://%.*s:%d/", request_scheme_length,
+             request_scheme, request_host_length, request_host,
+             request_port);
+
+    TSDebug(PLUGIN_NAME, "querying for the key %s\n", ikey);
+    m_result =
+        memcached_get(memc, ikey, strlen(ikey), &oval_length, &flags,
+                      &lrc);
+
+    char oscheme[1024], ohost[1024];
+    int oport;
+
+    if (lrc == MEMCACHED_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "got the response from server : %s\n",
+                m_result);
+        TSDebug(PLUGIN_NAME, "scanf result : %d\n",
+                sscanf(m_result, "%[a-zA-Z]://%[^:]:%d", oscheme, ohost,
+                       &oport));
+        if (sscanf
+            (m_result, "%[a-zA-Z]://%[^:]:%d", oscheme, ohost,
+             &oport) == 3) {
+            if (m_result)
+                free(m_result);
+            TSDebug(PLUGIN_NAME, "\nOUTGOING REQUEST ->\n ::: to_scheme_desc: %s\n ::: to_hostname: %s\n ::: to_port: %d", oscheme, ohost, oport);      //row[0],row[1],row[2]);
+            TSMimeHdrFieldValueStringSet(reqp, hdr_loc, field_loc, 0,
+                                         ohost, -1);
+            TSUrlHostSet(reqp, url_loc, ohost, -1);
+            TSUrlSchemeSet(reqp, url_loc, oscheme, -1);
+            TSUrlPortSet(reqp, url_loc, oport);
+            ret_val = true;
+        } else {
+            if (m_result)
+                free(m_result);
+            goto not_found;
+        }
+    } else {
+        TSDebug(PLUGIN_NAME,
+                "didn't get any response from the server %d, %d, %d\n",
+                lrc, flags, oval_length);
+        goto not_found;
+    }
+
+    goto free_stuff;            // free the result set after processed
+
+  not_found:
+    //lets build up a nice 404 message for someone
+    if (!ret_val) {
+        TSHttpHdrStatusSet(reqp, hdr_loc, TS_HTTP_STATUS_NOT_FOUND);
+        TSHttpTxnSetHttpRetStatus(txnp, TS_HTTP_STATUS_NOT_FOUND);
+    }
+  free_stuff:
+#if (TS_VERSION_NUMBER < 2001005)
+    if (request_host)
+        TSHandleStringRelease(reqp, hdr_loc, request_host);
+    if (request_scheme)
+        TSHandleStringRelease(reqp, hdr_loc, request_scheme);
+#endif
+  release_field:
+    if (field_loc)
+        TSHandleMLocRelease(reqp, hdr_loc, field_loc);
+  release_url:
+    if (url_loc)
+        TSHandleMLocRelease(reqp, hdr_loc, url_loc);
+  release_hdr:
+    if (hdr_loc)
+        TSHandleMLocRelease(reqp, TS_NULL_MLOC, hdr_loc);
+
+    return ret_val;
+}
+
+static int memcached_remap(TSCont contp, TSEvent event, void *edata)
+{
+    TSHttpTxn txnp = (TSHttpTxn) edata;
+    TSEvent reenable = TS_EVENT_HTTP_CONTINUE;
+
+    if (event == TS_EVENT_HTTP_READ_REQUEST_HDR) {
+        TSDebug(PLUGIN_NAME, "Reading Request");
+        TSSkipRemappingSet(txnp, 1);
+        if (!do_memcached_remap(contp, txnp)) {
+            reenable = TS_EVENT_HTTP_ERROR;
+        }
+    }
+
+    TSHttpTxnReenable(txnp, reenable);
+    return 1;
+}
+
+void TSPluginInit(int argc, const char *argv[])
+{
+    TSPluginRegistrationInfo info;
+    memcached_return_t rc;
+    //FILE *fp;
+    //char servers_string[8192];
+
+    info.plugin_name = const_cast < char *>(PLUGIN_NAME);
+    info.vendor_name = const_cast < char *>("Apache Software Foundation");
+    info.support_email = const_cast < char *>("dev@trafficserver.apache.org");
+
+    TSDebug(PLUGIN_NAME, "about to init memcached\n");
+    if (TSPluginRegister(TS_SDK_VERSION_2_0, &info) != TS_SUCCESS) {
+        TSError("memcached_remap: plugin registration failed.\n");
+        return;
+    }
+
+    // parse the configuration file
+    // TODO: this is still under testing 1.0.2 version should have this feature
+    /*
+    if(argc < 1) {
+        TSError("memcached_remap: you should pass a configuration file as argument to plugin with list of servers.\n");
+        return;
+    }
+
+    fp = fopen(argv[0], "r");
+    if(!fp) {
+        TSError("memcached_remap: Failed to open the configuration file %s\n", argv[0]);
+        return;
+    }
+
+    while(!feof(fp)) {
+        fscanf(fp,"servers=%[^\n] ", servers_string);
+    }
+
+    fclose(fp);
+    */
+
+    // initialize the memcache
+    //fp = NULL;
+    //snprintf(servers_string, 1,"%c",'h');
+    memc = memcached_create(NULL);
+
+    //servers = memcached_servers_parse(servers_string);
+
+    servers = memcached_server_list_append(NULL, "localhost", 11211, &rc);
+    if (rc != MEMCACHED_SUCCESS) {
+        TSError
+            ("memcached_remap: plugin registration failed while adding servers.\n");
+        return;
+    }
+
+    rc = memcached_server_push(memc, servers);
+    if (rc != MEMCACHED_SUCCESS) {
+        TSError
+            ("memcached_remap: plugin registration failed while adding to pool.\n");
+        return;
+    }
+
+    TSCont cont = TSContCreate(memcached_remap, TSMutexCreate());
+
+    TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
+
+    TSDebug(PLUGIN_NAME,
+            "plugin is successfully initialized [plugin mode]");
+    return;
+}
diff --git a/plugins/experimental/memcached_remap/sample.py b/plugins/experimental/memcached_remap/sample.py
new file mode 100755
index 00000000..3fa1bd79
--- /dev/null
+++ b/plugins/experimental/memcached_remap/sample.py
@@ -0,0 +1,34 @@
+#!/usr/bin/python
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Author: opensource@navyaprabha.com
+# Description: Sample script to add keys to memcached for use with YTS/memcached_remap plugin
+
+import memcache
+
+# connect to local server
+mc = memcache.Client(['127.0.0.1:11211'], debug=0)
+
+# Add couple of keys
+mc.set("http://127.0.0.1:80/", "http://127.0.0.1:8080");
+mc.set("http://localhost:80/", "http://localhost:8080");
+
+# Print the keys that are saved
+print "response-1 is '%s'" %(mc.get("http://127.0.0.1:80/"))
+print "response-2 is '%s'" %(mc.get("http://localhost:80/"))
+
diff --git a/plugins/experimental/metalink/Makefile.am b/plugins/experimental/metalink/Makefile.am
new file mode 100644
index 00000000..490c9800
--- /dev/null
+++ b/plugins/experimental/metalink/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = metalink.la
+metalink_la_SOURCES = metalink.cc
+metalink_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/metalink/Makefile.in b/plugins/experimental/metalink/Makefile.in
new file mode 100644
index 00000000..46747992
--- /dev/null
+++ b/plugins/experimental/metalink/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
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+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
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+am_metalink_la_OBJECTS = metalink.lo
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+am__v_lt_0 = --silent
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+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(metalink_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
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+am__depfiles_maybe = depfiles
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+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
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+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
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+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(metalink_la_SOURCES)
+DIST_SOURCES = $(metalink_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
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+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
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+ETAGS = etags
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+YACC = @YACC@
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+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
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+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
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+cpioh = @cpioh@
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+datarootdir = @datarootdir@
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+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
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+has_tests = @has_tests@
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+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
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+iocore_include_dirs = @iocore_include_dirs@
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+netdbh = @netdbh@
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+use_tls_eckey = @use_tls_eckey@
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+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
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+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = metalink.la
+metalink_la_SOURCES = metalink.cc
+metalink_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/metalink/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/metalink/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+metalink.la: $(metalink_la_OBJECTS) $(metalink_la_DEPENDENCIES) $(EXTRA_metalink_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(metalink_la_LINK) -rpath $(pkglibdir) $(metalink_la_OBJECTS) $(metalink_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/metalink.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
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+.cc.lo:
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
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+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
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+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
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+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+dvi: dvi-am
+
+dvi-am:
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+html: html-am
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+info: info-am
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+	install-info-am install-man install-pdf install-pdf-am \
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+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/metalink/README b/plugins/experimental/metalink/README
new file mode 100644
index 00000000..46fdd7cd
--- /dev/null
+++ b/plugins/experimental/metalink/README
@@ -0,0 +1,78 @@
+
+                               Metalink
+
+   Try not to download the same file twice.  Improve cache efficiency
+   and speed up downloads.
+
+   Take standard headers and knowledge about objects in the cache and
+   potentially rewrite those headers so that a client will use a URL
+   that's already cached instead of one that isn't.  The headers are
+   specified in [RFC 6249] (Metalink/HTTP: Mirrors and Hashes) and
+   [RFC 3230] (Instance Digests in HTTP) and are sent by various
+   download redirectors or content distribution networks.
+
+
+1.  Who Cares?
+
+   More important than saving a little bandwidth, this saves users
+   from frustration.
+
+   A lot of download sites distribute the same files from many
+   different mirrors and users don't know which mirrors are already
+   cached.  These sites often present users with a simple download
+   button, but the button doesn't predictably access the same mirror,
+   or a mirror that's already cached.  To users it seems like the
+   download works sometimes (takes seconds) and not others (takes
+   hours), which is frustrating.
+
+   An extreme example of this happens when users share a limited,
+   possibly unreliable internet connection, as is common in parts of
+   Africa for example.
+
+   [How to cache openSUSE repositories with Squid] is another,
+   different example of a use case where picking a URL that's already
+   cached is valuable.
+
+
+2.  What it Does
+
+   When it sees a response with a "Location: ..." header and a
+   "Digest: SHA-256=..." header, it checks if the URL in the Location
+   header is already cached.  If it isn't, then it tries to find a URL
+   that is cached to use instead.  It looks in the cache for some
+   object that matches the digest in the Digest header and if it
+   succeeds, then it rewites the Location header with that object's
+   URL.
+
+   This way a client should get sent to a URL that's already cached
+   and won't download the file again.
+
+
+3.  How to Use it
+
+   Just build the plugin and add it to your plugin.config file.
+
+   The code is distributed along with recent versions of Traffic
+   Server, in the "plugins/experimental/metalink" directory.  To build
+   it, pass the "--enable-experimental-plugins" option to the
+   configure script when you build Traffic Server:
+
+   <pre>$ ./configure --enable-experimental-plugins</pre>
+
+   When you're done building Traffic Server, add "metalink.so" to your
+   plugin.config file to start using the plugin.
+
+
+4.  Read More
+
+   More details are on the [wiki page] in the Traffic Server wiki.
+
+
+   [RFC 6249]    http://tools.ietf.org/html/rfc6249
+
+   [RFC 3230]    http://tools.ietf.org/html/rfc3230
+
+   [How to cache openSUSE repositories with Squid]
+                 http://wiki.jessen.ch/index/How_to_cache_openSUSE_repositories_with_Squid
+
+   [wiki page]   https://cwiki.apache.org/confluence/display/TS/Metalink
diff --git a/plugins/experimental/metalink/metalink.cc b/plugins/experimental/metalink/metalink.cc
new file mode 100644
index 00000000..207fdf18
--- /dev/null
+++ b/plugins/experimental/metalink/metalink.cc
@@ -0,0 +1,916 @@
+/** @file
+ *
+ * Try not to download the same file twice.  Improve cache efficiency
+ * and speed up downloads.
+ *
+ * @section license License
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership.  The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License.  You may obtain a copy of
+ * the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied.  See the License for the specific language governing
+ * permissions and limitations under the License. */
+
+#include <strings.h>
+
+#include <openssl/sha.h>
+
+#include "ts/ts.h"
+
+/* Implement TS_HTTP_READ_RESPONSE_HDR_HOOK to implement a null
+ * transformation.  Compute the SHA-256 digest of the content, write
+ * it to the cache and store the request URL at that key.
+ *
+ * Implement TS_HTTP_SEND_RESPONSE_HDR_HOOK to check the Location and
+ * Digest headers.  Use TSCacheRead() to check if the URL in the
+ * Location header is already cached.  If not, potentially rewrite
+ * that header.  Do this after responses are cached because the cache
+ * will change.
+ *
+ * More details are on the [wiki page] in the Traffic Server wiki.
+ *
+ *    [wiki page]   https://cwiki.apache.org/confluence/display/TS/Metalink */
+
+/* TSCacheWrite() and TSVConnWrite() data: Write the digest to the
+ * cache and store the request URL at that key */
+
+typedef struct {
+  TSHttpTxn txnp;
+
+  TSCacheKey key;
+
+  TSVConn connp;
+  TSIOBuffer cache_bufp;
+
+} WriteData;
+
+/* TSTransformCreate() data: Compute the SHA-256 digest of the content */
+
+typedef struct {
+  TSHttpTxn txnp;
+
+  /* Null transformation */
+  TSIOBuffer output_bufp;
+  TSVIO output_viop;
+
+  /* Message digest handle */
+  SHA256_CTX c;
+
+} TransformData;
+
+/* TSCacheRead() and TSVConnRead() data: Check the Location and Digest
+ * headers */
+
+typedef struct {
+  TSHttpTxn txnp;
+
+  TSMBuffer resp_bufp;
+  TSMLoc hdr_loc;
+
+  /* Location header */
+  TSMLoc location_loc;
+
+  /* Cache key */
+  TSMLoc url_loc;
+  TSCacheKey key;
+
+  /* Digest header */
+  TSMLoc digest_loc;
+
+  /* Digest header field value index */
+  int idx;
+
+  TSIOBuffer cache_bufp;
+
+  const char *value;
+  int64_t length;
+
+} SendData;
+
+/* Implement TS_HTTP_READ_RESPONSE_HDR_HOOK to implement a null
+ * transformation */
+
+/* Write the digest to the cache and store the request URL at that key */
+
+static int
+cache_open_write(TSCont contp, void *edata)
+{
+  TSMBuffer req_bufp;
+
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+
+  char *value;
+  int length;
+
+  WriteData *data = (WriteData *) TSContDataGet(contp);
+  data->connp = (TSVConn) edata;
+
+  TSCacheKeyDestroy(data->key);
+
+  if (TSHttpTxnClientReqGet(data->txnp, &req_bufp, &hdr_loc) != TS_SUCCESS) {
+    TSError("Couldn't retrieve client request header");
+
+    TSContDestroy(contp);
+
+    TSfree(data);
+
+    return 0;
+  }
+
+  if (TSHttpHdrUrlGet(req_bufp, hdr_loc, &url_loc) != TS_SUCCESS) {
+    TSContDestroy(contp);
+
+    TSfree(data);
+
+    TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, hdr_loc);
+
+    return 0;
+  }
+
+  /* Allocation!  Must free! */
+  value = TSUrlStringGet(req_bufp, url_loc, &length);
+  if (!value) {
+    TSContDestroy(contp);
+
+    TSfree(data);
+
+    TSHandleMLocRelease(req_bufp, hdr_loc, url_loc);
+    TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, hdr_loc);
+
+    return 0;
+  }
+
+  TSHandleMLocRelease(req_bufp, hdr_loc, url_loc);
+  TSHandleMLocRelease(req_bufp, TS_NULL_MLOC, hdr_loc);
+
+  /* Store the request URL */
+
+  data->cache_bufp = TSIOBufferCreate();
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(data->cache_bufp);
+
+  int nbytes = TSIOBufferWrite(data->cache_bufp, value, length);
+
+  TSfree(value);
+
+  /* Reuse the TSCacheWrite() continuation */
+  TSVConnWrite(data->connp, contp, readerp, nbytes);
+
+  return 0;
+}
+
+/* Do nothing */
+
+static int
+cache_open_write_failed(TSCont contp, void */* edata ATS_UNUSED */)
+{
+  WriteData *data = (WriteData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  TSCacheKeyDestroy(data->key);
+  TSfree(data);
+
+  return 0;
+}
+
+static int
+write_vconn_write_complete(TSCont contp, void */* edata ATS_UNUSED */)
+{
+  WriteData *data = (WriteData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  /* The object is not committed to the cache until the VConnection is
+   * closed.  When all the data has been transferred, the user (contp)
+   * must do a TSVConnClose() */
+  TSVConnClose(data->connp);
+
+  TSIOBufferDestroy(data->cache_bufp);
+  TSfree(data);
+
+  return 0;
+}
+
+/* TSCacheWrite() and TSVConnWrite() handler: Write the digest to the
+ * cache and store the request URL at that key */
+
+static int
+write_handler(TSCont contp, TSEvent event, void *edata)
+{
+  switch (event) {
+  case TS_EVENT_CACHE_OPEN_WRITE:
+    return cache_open_write(contp, edata);
+
+  case TS_EVENT_CACHE_OPEN_WRITE_FAILED:
+    return cache_open_write_failed(contp, edata);
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    return write_vconn_write_complete(contp, edata);
+
+  default:
+    TSAssert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+/* Copy content from the input buffer to the output buffer without
+ * modification and feed it through the message digest at the same
+ * time.
+ *
+ *    1.  Check if we are "closed" before doing anything else to avoid
+ *        errors.
+ *    2.  Then deal with any input that's available now.
+ *    3.  Check if the input is complete after dealing with any
+ *        available input in case it was the last of it.  If it is
+ *        complete, tell downstream, thank upstream, and finish
+ *        computing the digest.  Otherwise either wait for more input
+ *        or abort if upstream is "closed".
+ *
+ * The handler is guaranteed to get called at least once, even if the
+ * response is 304 Not Modified, so we are guaranteed an opportunity
+ * to clean up e.g. data that we allocated when we called
+ * TSTransformCreate().
+ *
+ * TS_EVENT_VCONN_WRITE_READY and TS_EVENT_VCONN_WRITE_COMPLETE events
+ * are sent from downstream, e.g. by
+ * TransformTerminus::handle_event().  TS_EVENT_IMMEDIATE events are
+ * sent by INKVConnInternal::do_io_write(),
+ * INKVConnInternal::do_io_close(), and INKVConnInternal::reenable()
+ * which are called from upstream, e.g. by
+ * TransformVConnection::do_io_write(),
+ * TransformVConnection::do_io_close(), and
+ * HttpTunnel::producer_handler().
+ *
+ * Clean up the output buffer on TS_EVENT_VCONN_WRITE_COMPLETE and not
+ * before.  We are guaranteed a TS_EVENT_VCONN_WRITE_COMPLETE event
+ * *unless* we are "closed".  In that case we instead get a
+ * TS_EVENT_IMMEDIATE event where TSVConnClosedGet() is one.  We'll
+ * only ever get one event where TSVConnClosedGet() is one and it will
+ * be our last, so we *must* check for this case and clean up then
+ * too.  Because we'll only ever get one such event and it will be our
+ * last, there's no risk of double freeing.
+ *
+ * The response headers get sent when TSVConnWrite() gets called and
+ * not before.  (We could potentially edit them until then.)
+ *
+ * The events say nothing about the state of the input.  Gather this
+ * instead from TSVConnClosedGet(), TSVIOReaderGet(), and
+ * TSVIONTodoGet() and handle the end of the input independently from
+ * the TS_EVENT_VCONN_WRITE_COMPLETE event from downstream.
+ *
+ * When TSVConnClosedGet() is one, *we* are "closed".  We *must* check
+ * for this case, if only to clean up allocated data.  Some state is
+ * already inconsistent.  (This happens when the response is 304 Not
+ * Modified or when the client or origin disconnect before the message
+ * is complete.)
+ *
+ * When TSVIOReaderGet() is NULL, upstream is "closed".  In that case
+ * it's clearly an error to call TSIOBufferReaderAvail(), it's also an
+ * error at that point to send any events upstream with TSContCall().
+ * (This happens when the content length is zero or when we get the
+ * final chunk of a chunked response.)
+ *
+ * The input is complete only when TSVIONTodoGet() is zero.  (Don't
+ * update the downstream nbytes otherwise!)  Update the downstream
+ * nbytes when the input is complete in case the response is chunked
+ * (in which case nbytes is unknown until then).  Downstream will
+ * (normally) send the TS_EVENT_VCONN_WRITE_COMPLETE event (and the
+ * final chunk if the response is chunked) when ndone equals nbytes
+ * and not before.
+ *
+ * Send our own TS_EVENT_VCONN_WRITE_COMPLETE event upstream when the
+ * input is complete otherwise HttpSM::update_stats() won't get called
+ * and the transaction won't get logged.  (If there are upstream
+ * transformations they won't get a chance to clean up otherwise!)
+ *
+ * Summary of the cases into which each event can fall:
+ *
+ *    Closed        *We* are "closed".  Clean up allocated data.
+ *
+ *       Start      First (and last) time the handler was called.
+ *                  (This happens when the response is 304 Not Modified.)
+ *
+ *       Not start  (This happens when the client or origin disconnect
+ *                  before the message is complete.)
+ *
+ *    Start         First time the handler was called.  Initialize
+ *                  data here because we can't call TSVConnWrite()
+ *                  before TS_HTTP_RESPONSE_TRANSFORM_HOOK.
+ *
+ *       Content length
+ *
+ *       Chunked response
+ *
+ *    Upstream closed
+ *                  (This happens when the content length is zero or
+ *                  when we get the final chunk of a chunked
+ *                  response.)
+ *
+ *    Available input
+ *
+ *    Input complete
+ *
+ *       Deja vu    There might be multiple TS_EVENT_IMMEDIATE events
+ *                  between the end of the input and the
+ *                  TS_EVENT_VCONN_WRITE_COMPLETE event from
+ *                  downstream.
+ *
+ *       Not deja vu
+ *                  Tell downstream and thank upstream.
+ *
+ *    Downstream complete
+ *                  Clean up the output buffer. */
+
+static int
+vconn_write_ready(TSCont contp, void */* edata ATS_UNUSED */)
+{
+  const char *value;
+  int64_t length;
+
+  char digest[32]; /* SHA-256 */
+
+  TransformData *transform_data = (TransformData *) TSContDataGet(contp);
+
+  /* Check if we are "closed" before doing anything else to avoid
+   * errors.  We *must* check for this case, if only to clean up
+   * allocated data.  Some state is already inconsistent.  (This
+   * happens if the response is 304 Not Modified or if the client or
+   * origin disconnect before the message is complete.) */
+  int closed = TSVConnClosedGet(contp);
+  if (closed) {
+    TSContDestroy(contp);
+
+    /* Avoid failed assert "sdk_sanity_check_iocore_structure(bufp) ==
+     * TS_SUCCESS" in TSIOBufferDestroy() if the response is 304 Not
+     * Modified */
+    if (transform_data->output_bufp) {
+      TSIOBufferDestroy(transform_data->output_bufp);
+    }
+
+    TSfree(transform_data);
+
+    return 0;
+  }
+
+  TSVIO input_viop = TSVConnWriteVIOGet(contp);
+
+  /* Initialize data here because we can't call TSVConnWrite() before
+   * TS_HTTP_RESPONSE_TRANSFORM_HOOK */
+  if (!transform_data->output_bufp) {
+    TSVConn output_connp = TSTransformOutputVConnGet(contp);
+
+    transform_data->output_bufp = TSIOBufferCreate();
+    TSIOBufferReader readerp = TSIOBufferReaderAlloc(transform_data->output_bufp);
+
+    /* Determines the Content-Length header (or a chunked response) */
+
+    /* Avoid failed assert "nbytes >= 0" if the response is chunked */
+    int nbytes = TSVIONBytesGet(input_viop);
+    transform_data->output_viop = TSVConnWrite(output_connp, contp, readerp, nbytes < 0 ? INT64_MAX : nbytes);
+
+    SHA256_Init(&transform_data->c);
+  }
+
+  /* Then deal with any input that's available now.  Avoid failed
+   * assert "sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS"
+   * in TSIOBufferReaderAvail() if the content length is zero or when
+   * we get the final chunk of a chunked response. */
+  TSIOBufferReader readerp = TSVIOReaderGet(input_viop);
+  if (readerp) {
+
+    int avail = TSIOBufferReaderAvail(readerp);
+    if (avail) {
+      TSIOBufferCopy(transform_data->output_bufp, readerp, avail, 0);
+
+      /* Feed content to the message digest */
+      TSIOBufferBlock blockp = TSIOBufferReaderStart(readerp);
+      while (blockp) {
+
+        /* No allocation? */
+        value = TSIOBufferBlockReadStart(blockp, readerp, &length);
+        SHA256_Update(&transform_data->c, value, length);
+
+        blockp = TSIOBufferBlockNext(blockp);
+      }
+
+      TSIOBufferReaderConsume(readerp, avail);
+
+      /* Call TSVIONDoneSet() for TSVIONTodoGet() condition */
+      int ndone = TSVIONDoneGet(input_viop);
+      TSVIONDoneSet(input_viop, ndone + avail);
+    }
+  }
+
+  /* Check if the input is complete after dealing with any available
+   * input in case it was the last of it */
+  int ntodo = TSVIONTodoGet(input_viop);
+  if (ntodo) {
+    TSVIOReenable(transform_data->output_viop);
+
+    TSContCall(TSVIOContGet(input_viop), TS_EVENT_VCONN_WRITE_READY, input_viop);
+
+  /* Don't finish computing the digest (and tell downstream and thank
+   * upstream) more than once!  There might be multiple
+   * TS_EVENT_IMMEDIATE events between the end of the input and the
+   * TS_EVENT_VCONN_WRITE_COMPLETE event from downstream, e.g.
+   * INKVConnInternal::reenable() is called by
+   * HttpTunnel::producer_handler() when more input is available and
+   * TransformVConnection::do_io_shutdown() is called by
+   * HttpSM::tunnel_handler_transform_write() when we send our own
+   * TS_EVENT_VCONN_WRITE_COMPLETE event upstream. */
+  } else if (transform_data->txnp) {
+
+    int ndone = TSVIONDoneGet(input_viop);
+    TSVIONBytesSet(transform_data->output_viop, ndone);
+
+    TSVIOReenable(transform_data->output_viop);
+
+    /* Avoid failed assert "c->alive == true" in TSContCall() if the
+     * content length is zero or when we get the final chunk of a
+     * chunked response */
+    if (readerp) {
+      TSContCall(TSVIOContGet(input_viop), TS_EVENT_VCONN_WRITE_COMPLETE, input_viop);
+    }
+
+    /* Write the digest to the cache */
+
+    SHA256_Final((unsigned char *) digest, &transform_data->c);
+
+    WriteData *write_data = (WriteData *) TSmalloc(sizeof(WriteData));
+    write_data->txnp = transform_data->txnp;
+
+    /* Don't finish computing the digest more than once! */
+    transform_data->txnp = NULL;
+
+    write_data->key = TSCacheKeyCreate();
+    if (TSCacheKeyDigestSet(write_data->key, digest, sizeof(digest)) != TS_SUCCESS) {
+
+      TSCacheKeyDestroy(write_data->key);
+      TSfree(write_data);
+
+      return 0;
+    }
+
+    /* Can't reuse the TSTransformCreate() continuation because we
+     * don't know whether to destroy it in
+     * cache_open_write()/cache_open_write_failed() or
+     * transform_vconn_write_complete() */
+    contp = TSContCreate(write_handler, NULL);
+    TSContDataSet(contp, write_data);
+
+    TSCacheWrite(contp, write_data->key);
+  }
+
+  return 0;
+}
+
+static int
+transform_vconn_write_complete(TSCont contp, void */* edata ATS_UNUSED */)
+{
+  TransformData *data = (TransformData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  TSIOBufferDestroy(data->output_bufp);
+  TSfree(data);
+
+  return 0;
+}
+
+/* TSTransformCreate() handler: Compute the SHA-256 digest of the
+ * content */
+
+static int
+transform_handler(TSCont contp, TSEvent event, void *edata)
+{
+  switch (event) {
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_VCONN_WRITE_READY:
+    return vconn_write_ready(contp, edata);
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    return transform_vconn_write_complete(contp, edata);
+
+  default:
+    TSAssert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+/* Compute the SHA-256 digest of the content, write it to the cache
+ * and store the request URL at that key */
+
+static int
+http_read_response_hdr(TSCont /* contp ATS_UNUSED */, void *edata)
+{
+  TransformData *data = (TransformData *) TSmalloc(sizeof(TransformData));
+  data->txnp = (TSHttpTxn) edata;
+
+  /* Can't initialize data here because we can't call TSVConnWrite()
+   * before TS_HTTP_RESPONSE_TRANSFORM_HOOK */
+  data->output_bufp = NULL;
+
+  TSVConn connp = TSTransformCreate(transform_handler, data->txnp);
+  TSContDataSet(connp, data);
+
+  TSHttpTxnHookAdd(data->txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+
+  TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+
+  return 0;
+}
+
+/* Implement TS_HTTP_SEND_RESPONSE_HDR_HOOK to check the Location and
+ * Digest headers */
+
+/* Read the URL stored at the digest */
+
+static int
+cache_open_read(TSCont contp, void *edata)
+{
+  SendData *data = (SendData *) TSContDataGet(contp);
+
+  TSVConn connp = (TSVConn) edata;
+
+  data->cache_bufp = TSIOBufferCreate();
+
+  /* Reuse the TSCacheRead() continuation */
+  TSVConnRead(connp, contp, data->cache_bufp, INT64_MAX);
+
+  return 0;
+}
+
+/* Do nothing, just reenable the response */
+
+static int
+cache_open_read_failed(TSCont contp, void */* edata ATS_UNUSED */)
+{
+  SendData *data = (SendData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  TSCacheKeyDestroy(data->key);
+
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+  TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+  TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+  TSfree(data);
+
+  return 0;
+}
+
+/* TSCacheRead() handler: Check if the URL stored at the digest is
+ * cached */
+
+static int
+rewrite_handler(TSCont contp, TSEvent event, void */* edata ATS_UNUSED */)
+{
+  SendData *data = (SendData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  switch (event) {
+
+  /* Yes: Rewrite the Location header and reenable the response */
+  case TS_EVENT_CACHE_OPEN_READ:
+
+    TSMimeHdrFieldValuesClear(data->resp_bufp, data->hdr_loc, data->location_loc);
+    TSMimeHdrFieldValueStringInsert(data->resp_bufp, data->hdr_loc, data->location_loc, -1, data->value, data->length);
+
+    break;
+
+  /* No: Do nothing, just reenable the response */
+  case TS_EVENT_CACHE_OPEN_READ_FAILED:
+    break;
+
+  default:
+    TSAssert(!"Unexpected event");
+  }
+
+  TSIOBufferDestroy(data->cache_bufp);
+
+  TSCacheKeyDestroy(data->key);
+
+  TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+  TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+  TSfree(data);
+
+  return 0;
+}
+
+/* Read the URL stored at the digest */
+
+static int
+vconn_read_ready(TSCont contp, void */* edata ATS_UNUSED */)
+{
+  SendData *data = (SendData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(data->cache_bufp);
+
+  TSIOBufferBlock blockp = TSIOBufferReaderStart(readerp);
+
+  /* No allocation, freed with data->cache_bufp? */
+  const char *value = data->value = TSIOBufferBlockReadStart(blockp, readerp, &data->length);
+
+  /* The start pointer is both an input and an output parameter.
+   * After a successful parse the start pointer equals the end
+   * pointer. */
+  if (TSUrlParse(data->resp_bufp, data->url_loc, &value, value + data->length) != TS_PARSE_DONE) {
+    TSIOBufferDestroy(data->cache_bufp);
+
+    TSCacheKeyDestroy(data->key);
+
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+    TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+    TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+    TSfree(data);
+
+    return 0;
+  }
+
+  if (TSCacheKeyDigestFromUrlSet(data->key, data->url_loc) != TS_SUCCESS) {
+    TSIOBufferDestroy(data->cache_bufp);
+
+    TSCacheKeyDestroy(data->key);
+
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+    TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+    TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+    TSfree(data);
+
+    return 0;
+  }
+
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+
+  /* Check if the URL stored at the digest is cached */
+
+  contp = TSContCreate(rewrite_handler, NULL);
+  TSContDataSet(contp, data);
+
+  TSCacheRead(contp, data->key);
+
+  return 0;
+}
+
+/* TSCacheRead() and TSVConnRead() handler: Check if the digest
+ * already exists in the cache */
+
+static int
+digest_handler(TSCont contp, TSEvent event, void *edata)
+{
+  switch (event) {
+
+  /* Yes: Read the URL stored at that key */
+  case TS_EVENT_CACHE_OPEN_READ:
+    return cache_open_read(contp, edata);
+
+  /* No: Do nothing, just reenable the response */
+  case TS_EVENT_CACHE_OPEN_READ_FAILED:
+    return cache_open_read_failed(contp, edata);
+
+  case TS_EVENT_VCONN_READ_READY:
+    return vconn_read_ready(contp, edata);
+
+  default:
+    TSAssert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+/* TSCacheRead() handler: Check if the Location URL is already cached */
+
+static int
+location_handler(TSCont contp, TSEvent event, void */* edata ATS_UNUSED */)
+{
+  const char *value;
+  int length;
+
+  char digest[33]; /* ATS_BASE64_DECODE_DSTLEN() */
+
+  SendData *data = (SendData *) TSContDataGet(contp);
+  TSContDestroy(contp);
+
+  switch (event) {
+
+  /* Yes: Do nothing, just reenable the response */
+  case TS_EVENT_CACHE_OPEN_READ:
+    break;
+
+  /* No: Check if the digest already exists in the cache */
+  case TS_EVENT_CACHE_OPEN_READ_FAILED:
+
+    /* No allocation, freed with data->resp_bufp? */
+    value = TSMimeHdrFieldValueStringGet(data->resp_bufp, data->hdr_loc, data->digest_loc, data->idx, &length);
+    if (TSBase64Decode(value + 8, length - 8, (unsigned char *) digest, sizeof(digest), NULL) != TS_SUCCESS
+        || TSCacheKeyDigestSet(data->key, digest, 32 /* SHA-256 */ ) != TS_SUCCESS) {
+      break;
+    }
+
+    TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->digest_loc);
+
+    /* Check if the digest already exists in the cache */
+
+    contp = TSContCreate(digest_handler, NULL);
+    TSContDataSet(contp, data);
+
+    TSCacheRead(contp, data->key);
+
+    return 0;
+
+  default:
+    TSAssert(!"Unexpected event");
+  }
+
+  TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->digest_loc);
+
+  TSCacheKeyDestroy(data->key);
+
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+  TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+  TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+  TSfree(data);
+
+  return 0;
+}
+
+/* Use TSCacheRead() to check if the URL in the Location header is
+ * already cached.  If not, potentially rewrite that header.  Do this
+ * after responses are cached because the cache will change. */
+
+static int
+http_send_response_hdr(TSCont contp, void *edata)
+{
+  const char *value;
+  int length;
+
+  SendData *data = (SendData *) TSmalloc(sizeof(SendData));
+  data->txnp = (TSHttpTxn) edata;
+
+  if (TSHttpTxnClientRespGet(data->txnp, &data->resp_bufp, &data->hdr_loc) != TS_SUCCESS) {
+    TSError("Couldn't retrieve client response header");
+
+    TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+    TSfree(data);
+
+    return 0;
+  }
+
+  /* If Instance Digests are not provided by the Metalink servers, the
+   * Link header fields pertaining to this specification MUST be
+   * ignored */
+
+  /* Metalinks contain whole file hashes as described in Section 6,
+   * and MUST include SHA-256, as specified in [FIPS-180-3] */
+
+  /* Assumption: We want to minimize cache reads, so check first that
+   *
+   *    1.  the response has a Location header and
+   *    2.  the response has a Digest header.
+   *
+   * Then scan if the URL or digest already exist in the cache. */
+
+  /* If the response has a Location header */
+  data->location_loc = TSMimeHdrFieldFind(data->resp_bufp, data->hdr_loc, TS_MIME_FIELD_LOCATION, TS_MIME_LEN_LOCATION);
+  if (!data->location_loc) {
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+    TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+    TSfree(data);
+
+    return 0;
+  }
+
+  TSUrlCreate(data->resp_bufp, &data->url_loc);
+
+  /* If we can't parse or lookup the Location URL, should we still
+   * check if the response has a Digest header?  No: Can't parse or
+   * lookup the URL in the Location header is an error. */
+
+  /* No allocation, freed with data->resp_bufp? */
+  value = TSMimeHdrFieldValueStringGet(data->resp_bufp, data->hdr_loc, data->location_loc, -1, &length);
+  if (TSUrlParse(data->resp_bufp, data->url_loc, &value, value + length) != TS_PARSE_DONE) {
+
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+    TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+    TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+    TSfree(data);
+
+    return 0;
+  }
+
+  data->key = TSCacheKeyCreate();
+  if (TSCacheKeyDigestFromUrlSet(data->key, data->url_loc) != TS_SUCCESS) {
+    TSCacheKeyDestroy(data->key);
+
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+    TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+    TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+    TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+    TSfree(data);
+
+    return 0;
+  }
+
+  /* ... and a Digest header */
+  data->digest_loc = TSMimeHdrFieldFind(data->resp_bufp, data->hdr_loc, "Digest", 6);
+  while (data->digest_loc) {
+
+    int count = TSMimeHdrFieldValuesCount(data->resp_bufp, data->hdr_loc, data->digest_loc);
+    for (data->idx = 0; data->idx < count; data->idx += 1) {
+
+      /* No allocation, freed with data->resp_bufp? */
+      value = TSMimeHdrFieldValueStringGet(data->resp_bufp, data->hdr_loc, data->digest_loc, data->idx, &length);
+      if (length < 8 + 44 /* 32 bytes, Base64 */ || strncasecmp(value, "SHA-256=", 8)) {
+        continue;
+      }
+
+      /* Check if the Location URL is already cached */
+
+      contp = TSContCreate(location_handler, NULL);
+      TSContDataSet(contp, data);
+
+      TSCacheRead(contp, data->key);
+
+      return 0;
+    }
+
+    TSMLoc next_loc = TSMimeHdrFieldNextDup(data->resp_bufp, data->hdr_loc, data->digest_loc);
+
+    TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->digest_loc);
+
+    data->digest_loc = next_loc;
+  }
+
+  /* Didn't find a Digest header, just reenable the response */
+
+  TSCacheKeyDestroy(data->key);
+
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->url_loc);
+  TSHandleMLocRelease(data->resp_bufp, data->hdr_loc, data->location_loc);
+  TSHandleMLocRelease(data->resp_bufp, TS_NULL_MLOC, data->hdr_loc);
+
+  TSHttpTxnReenable(data->txnp, TS_EVENT_HTTP_CONTINUE);
+  TSfree(data);
+
+  return 0;
+}
+
+static int
+handler(TSCont contp, TSEvent event, void *edata)
+{
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    return http_read_response_hdr(contp, edata);
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    return http_send_response_hdr(contp, edata);
+
+  default:
+    TSAssert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+void
+TSPluginInit(int /* argc ATS_UNUSED */, const char */* argv ATS_UNUSED */[])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = (char *) "metalink";
+  info.vendor_name = (char *) "Apache Software Foundation";
+  info.support_email = (char *) "dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("Plugin registration failed");
+  }
+
+  TSCont contp = TSContCreate(handler, NULL);
+
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, contp);
+  TSHttpHookAdd(TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+}
diff --git a/plugins/experimental/metalink/test/chunkedEncoding b/plugins/experimental/metalink/test/chunkedEncoding
new file mode 100755
index 00000000..66c8d9bd
--- /dev/null
+++ b/plugins/experimental/metalink/test/chunkedEncoding
@@ -0,0 +1,99 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 chunkedEncoding
+# The proxy forwards the final chunk at the end of a chunked response'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - No final chunk yet'
+
+  reactor.stop()
+
+reactor.callLater(2, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('chunkedEncoding')
+
+        # If the proxy reads the final chunk before it sends the
+        # response headers, it may send a Content-Length header vs. a
+        # chunked response
+        reactor.callLater(1, ctx.finish)
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        print 'not ok 1 - Got a Content-Length header vs. a chunked response'
+
+        # No hope of a final chunk now
+        reactor.stop()
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message (if the proxy sent a Content-Length header vs. a chunked
+    # response).  (Override connectionLost() when the proxy crashes or
+    # we stop the reactor.)
+    #
+    # Data that was already received will get processed (the end of
+    # the headers), then shutdown events will fire (connections will
+    # get closed), and then finally the reactor will grind to a halt.
+    def handleResponseEnd(ctx):
+      pass
+
+    def handleResponsePart(ctx, data):
+      if data.endswith('0\r\n\r\n'):
+        print 'ok 1 - Got the final chunk'
+
+        reactor.stop()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/chunkedEncodingDisconnect b/plugins/experimental/metalink/test/chunkedEncodingDisconnect
new file mode 100755
index 00000000..e39549f7
--- /dev/null
+++ b/plugins/experimental/metalink/test/chunkedEncodingDisconnect
@@ -0,0 +1,97 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 chunkedEncodingDisconnect
+# The proxy closes the client connection and doesn't send a final
+# chunk if the origin disconnects without sending one'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - The client was left hanging'
+
+  reactor.stop()
+
+reactor.callLater(2, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('chunkedEncodingDisconnect')
+
+        # If the origin disconnects before the proxy sends the
+        # response headers, the proxy may send a Content-Length header
+        # vs. a chunked response
+        reactor.callLater(1, ctx.transport.loseConnection)
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'ok 1 - The client connection closed'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        print 'not ok 1 - Got a Content-Length header vs. a chunked response'
+
+        # Who cares what happens now?
+        reactor.stop()
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message (if the proxy sent a Content-Length header vs. a chunked
+    # response).  (Override connectionLost() when the proxy closes the
+    # client connection or we stop the reactor.)
+    def handleResponseEnd(ctx):
+      pass
+
+    def handleResponsePart(ctx, data):
+      if data.endswith('0\r\n\r\n'):
+        print 'not ok 1 - Got a final chunk'
+
+        # Who cares what happens now?
+        reactor.stop()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/clientDisconnect b/plugins/experimental/metalink/test/clientDisconnect
new file mode 100755
index 00000000..b9ff984c
--- /dev/null
+++ b/plugins/experimental/metalink/test/clientDisconnect
@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 clientDissconnect
+# The proxy doesn't crash if the client disconnects prematurely'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - Why didn\'t the test finish yet?'
+
+  reactor.stop()
+
+reactor.callLater(3, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('clientDisconnect')
+
+        # The proxy crashes only after the response is complete
+        def callback():
+          try:
+            ctx.finish()
+
+          except RuntimeError:
+            pass
+
+          # Open another connection
+          class factory(protocol.ClientFactory):
+            def clientConnectionFailed(ctx, connector, reason):
+              print 'not ok 1 - Did the proxy crash?  (Can\'t open another connection to it.)'
+
+              reactor.stop()
+
+            class protocol(protocol.Protocol):
+              def connectionMade(ctx):
+                print 'ok 1 - The proxy didn\'t crash (opened another connection to it)'
+
+                reactor.stop()
+
+          reactor.callLater(1, tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect)
+
+        reactor.callLater(1, callback)
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(protocol.Protocol):
+    def connectionMade(ctx):
+      ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+      # Disconnect after the proxy sends the response headers
+      reactor.callLater(1, ctx.transport.loseConnection)
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/contentLength b/plugins/experimental/metalink/test/contentLength
new file mode 100755
index 00000000..f53efe79
--- /dev/null
+++ b/plugins/experimental/metalink/test/contentLength
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 contentLength
+# The proxy forwards the Content-Length header to the client'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - Why didn\'t the test finish yet?'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.setHeader('Content-Length', 13)
+        ctx.write('contentLength')
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleEndHeaders(ctx):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - No Content-Length header'
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        if v != '13':
+          print 'not',
+
+        print 'ok 1 - Content-Length header'
+
+        reactor.stop()
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message.  (Override connectionLost() when the proxy crashes or
+    # we stop the reactor.)
+    #
+    # Data that was already received will get processed (the end of
+    # the headers), then shutdown events will fire (connections will
+    # get closed), and then finally the reactor will grind to a halt.
+    def handleResponseEnd(ctx):
+      pass
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/contentLengthDisconnect b/plugins/experimental/metalink/test/contentLengthDisconnect
new file mode 100755
index 00000000..17d927ff
--- /dev/null
+++ b/plugins/experimental/metalink/test/contentLengthDisconnect
@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..2 contentLengthDisconnect
+# The proxy closes the client connection if the origin disconnects
+# prematurely'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 2 - The client was left hanging'
+
+  reactor.stop()
+
+reactor.callLater(2, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.setHeader('Content-Length', 24)
+        ctx.write('contentLengthDisconnect')
+
+        # If the origin disconnects before the proxy sends the
+        # response headers, the proxy may send the wrong
+        # Content-Length header
+        reactor.callLater(1, ctx.transport.loseConnection)
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'ok 2 - The client connection closed'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        if v != '24':
+          print 'not',
+
+          # Who cares what happens now?
+          reactor.stop()
+
+        print 'ok 1 - Content-Length header'
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message (if the proxy sent the wrong Content-Length header).
+    # (Override connectionLost() when the proxy closes the client
+    # connection or we stop the reactor.)
+    def handleResponseEnd(ctx):
+      pass
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/finalChunkedEncodingDisconnect b/plugins/experimental/metalink/test/finalChunkedEncodingDisconnect
new file mode 100755
index 00000000..6185e9a5
--- /dev/null
+++ b/plugins/experimental/metalink/test/finalChunkedEncodingDisconnect
@@ -0,0 +1,112 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 finalChunkEncodingDisconnect
+# The proxy forwards the final chunk even if the origin disconnects
+# immediately afterward'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - No final chunk yet'
+
+  reactor.stop()
+
+reactor.callLater(2, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('finalChunkedEncodingDisconnect')
+
+        # If the proxy reads the final chunk before it sends the
+        # response headers, it may send a Content-Length header vs. a
+        # chunked response
+        def callback():
+          try:
+            ctx.finish()
+
+          except RuntimeError:
+            print 'not ok 1 - Did the proxy crash?  (The origin connection closed.)'
+
+            reactor.stop()
+
+          else:
+            ctx.transport.loseConnection()
+
+        reactor.callLater(1, callback)
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        print 'not ok 1 - Got a Content-Length header vs. a chunked response'
+
+        # No hope of a final chunk now
+        reactor.stop()
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message (if the proxy sent a Content-Length header vs. a chunked
+    # response).  (Override connectionLost() when the proxy crashes or
+    # we stop the reactor.)
+    #
+    # Data that was already received will get processed (the end of
+    # the headers), then shutdown events will fire (connections will
+    # get closed), and then finally the reactor will grind to a halt.
+    def handleResponseEnd(ctx):
+      pass
+
+    def handleResponsePart(ctx, data):
+      if data.endswith('0\r\n\r\n'):
+        print 'ok 1 - Got the final chunk'
+
+        reactor.stop()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/headers b/plugins/experimental/metalink/test/headers
new file mode 100755
index 00000000..717c0c32
--- /dev/null
+++ b/plugins/experimental/metalink/test/headers
@@ -0,0 +1,75 @@
+#!/usr/bin/env python
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+print '''1..1 headers
+# The response isn't held up until the server starts sending content'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - No response yet'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('')
+
+server = tcp.Port(0, factory())
+server.startListening()
+
+print '# Listening on {0}:{1}'.format(*server.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*server.socket.getsockname()))
+
+    def handleStatus(ctx, version, status, message):
+      print 'ok 1 - Got the response status'
+
+      reactor.stop()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/http09 b/plugins/experimental/metalink/test/http09
new file mode 100755
index 00000000..b53d2008
--- /dev/null
+++ b/plugins/experimental/metalink/test/http09
@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 http09
+# The proxy doesn't crash on an HTTP/0.9 response'''
+
+# http://www.w3.org/Protocols/HTTP/AsImplemented
+#
+# The proxy crashes only after the response is complete.  It closes
+# the client connection whether it crashes or not because an HTTP/0.9
+# response is complete only after the origin closes its connection,
+# and then the proxy normally does the same thing to the client
+# connection (although it upgrades the response to HTTP/1.1).  So the
+# only way to check that the proxy didn't crash is to open another
+# connection.
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - Why didn\'t the test finish yet?'
+
+  reactor.stop()
+
+reactor.callLater(2, callback)
+
+class factory(protocol.Factory):
+  class protocol(protocol.Protocol):
+    def connectionMade(ctx):
+      ctx.transport.write('http09\r\n')
+
+      # The proxy crashes only after the response is complete
+      ctx.transport.loseConnection()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(protocol.Protocol):
+    def connectionLost(ctx, reason):
+
+      # Open another connection
+      class factory(protocol.ClientFactory):
+        def clientConnectionFailed(ctx, connector, reason):
+          print 'not ok 1 - Did the proxy crash?  (Can\'t open another connection to it.)'
+
+          reactor.stop()
+
+        class protocol(protocol.Protocol):
+          def connectionMade(ctx):
+            print 'ok 1 - The proxy didn\'t crash (opened another connection to it)'
+
+            reactor.stop()
+
+      reactor.callLater(1, tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect)
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/location b/plugins/experimental/metalink/test/location
new file mode 100755
index 00000000..97eb32a6
--- /dev/null
+++ b/plugins/experimental/metalink/test/location
@@ -0,0 +1,124 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..2 location
+# The proxy rewrites the Location header if the file is already cached'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - Why didn\'t the test finish yet?'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        if target == '/location':
+
+          ctx.write('location')
+          ctx.finish()
+
+        else:
+
+          ctx.setHeader('Digest', 'SHA-256=5urqGOiF4QeIKbVt80iWvlq1FDno8LoAyxYkssVywQ4=')
+          ctx.setHeader('Location', 'http://example.com')
+          ctx.finish()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    # Get a response with a Location and a Digest header and check
+    # that the Location header is not rewritten.  Then get the same
+    # response after caching a matching file from a different URL and
+    # check that this time the header is rewritten.
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\nGET {0}:{1}/location HTTP/1.1\r\n\r\nGET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleResponsePart(ctx, data):
+      try:
+        h, r = data.split('0\r\n\r\n', 1)
+
+      except ValueError:
+        pass
+
+      else:
+
+        ctx.firstLine = True
+        ctx.setLineMode(r)
+
+    def handleStatus(ctx, version, status, message):
+      def handleHeader(k, v):
+        if k.lower() == 'location':
+          if v != 'http://example.com':
+            print 'not',
+
+          print 'ok 1 - Before'
+
+      ctx.handleHeader = handleHeader
+
+      def handleStatus(version, status, message):
+        del ctx.handleHeader
+
+        def handleStatus(version, staus, message):
+          def handleHeader(k, v):
+            if k.lower() == 'location':
+              if v != 'http://{0}:{1}/location'.format(*origin.socket.getsockname()):
+                print 'not',
+
+              print 'ok 2 - After'
+
+              reactor.stop()
+
+          ctx.handleHeader = handleHeader
+
+        ctx.handleStatus = handleStatus
+
+      ctx.handleStatus = handleStatus
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/longer b/plugins/experimental/metalink/test/longer
new file mode 100755
index 00000000..d2984512
--- /dev/null
+++ b/plugins/experimental/metalink/test/longer
@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 longer
+# The proxy doesn't choke if the origin sends more content than it
+# advertised'''
+
+# Unlike the contentLength test, don't stop the reactor at the end of
+# the headers.  Give the proxy time to choke.
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - No Content-Length header'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.setHeader('Content-Length', 1)
+        ctx.write('longer')
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        if v != '1':
+          print 'not',
+
+        print 'ok 1 - Content-Length header'
+
+        reactor.stop()
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message.  (Override connectionLost() when the proxy crashes or
+    # we stop the reactor.)
+    #
+    # Data that was already received will get processed (the end of
+    # the headers), then shutdown events will fire (connections will
+    # get closed), and then finally the reactor will grind to a halt.
+    def handleResponseEnd(ctx):
+      pass
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/notModified b/plugins/experimental/metalink/test/notModified
new file mode 100755
index 00000000..90c3a87b
--- /dev/null
+++ b/plugins/experimental/metalink/test/notModified
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..2 notModified
+# The proxy doesn't crash on a 304 Not Modified response'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'ok 2 - The proxy didn\'t crash (the client connection didn\'t close yet)'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.setResponseCode(304)
+        ctx.finish()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleStatus(ctx, version, status, message):
+      if status != '304':
+        print 'not',
+
+      print 'ok 1 - 304 Not Modified response status'
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/pipeliningDisconnect b/plugins/experimental/metalink/test/pipeliningDisconnect
new file mode 100755
index 00000000..2d97dc1b
--- /dev/null
+++ b/plugins/experimental/metalink/test/pipeliningDisconnect
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 pipeliningDisconnect
+# The proxy doesn't crash if INKVConnInternal::do_io_close() gets
+# called after a message is already complete'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'ok 1 - Did the connection close before the proxy made the second request?'
+
+  reactor.stop()
+
+reactor.callLater(2, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+        class requestFactory(http.Request):
+          def requestReceived(ctx, method, target, version):
+
+            ctx.client = None
+            ctx.clientproto = version
+
+            ctx.write('pipeliningDisconnect')
+            ctx.finish()
+
+            # Open another connection
+            class factory(protocol.ClientFactory):
+              def clientConnectionFailed(ctx, connector, reason):
+                print 'not ok 1 - Did the proxy crash?  (Can\'t open another connection to it.)'
+
+                reactor.stop()
+
+              class protocol(protocol.Protocol):
+                def connectionMade(ctx):
+                  print 'ok 1 - The proxy didn\'t crash (opened another connection to it)'
+
+                  reactor.stop()
+
+            reactor.callLater(1, tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect)
+
+        ctx.channel.requestFactory = requestFactory
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('pipeliningDisconnect')
+        ctx.finish()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(protocol.Protocol):
+    def connectionMade(ctx):
+
+      # Somehow these magic words frequently cause
+      # INKVConnInternal::do_io_close() to get called after a message
+      # is already complete
+      ctx.transport.write('GET {0}:{1}/pipeliningDisconnect0 HTTP/1.1\r\n\r\nGET {0}:{1}/pipeliningDisconnect1 HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+      ctx.transport.loseConnection()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/shortChunkedEncodingDisconnect b/plugins/experimental/metalink/test/shortChunkedEncodingDisconnect
new file mode 100755
index 00000000..14e5a6fd
--- /dev/null
+++ b/plugins/experimental/metalink/test/shortChunkedEncodingDisconnect
@@ -0,0 +1,96 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 shortChunkedEncodingDisconnect
+# The proxy closes the client connection and doesn't send a final
+# chunk if the origin disconnects without sending one, before the
+# proxy sends the response headers'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - The client was left hanging'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('shortChunkedEncodingDisconnect')
+
+        # Disconnect before the proxy sends the response headers
+        ctx.transport.loseConnection()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'ok 1 - The client connection closed'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        print 'not ok 1 - Got a Content-Length header vs. a chunked response'
+
+        # Who cares what happens now?
+        reactor.stop()
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message (if the proxy sent a Content-Length header vs. a chunked
+    # response).  (Override connectionLost() when the proxy closes the
+    # client connection or we stop the reactor.)
+    def handleResponseEnd(ctx):
+      pass
+
+    def handleResponsePart(ctx, data):
+      if data.endswith('0\r\n\r\n'):
+        print 'not ok 1 - Got a final chunk'
+
+        # Who cares what happens now?
+        reactor.stop()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/shortClientDisconnect b/plugins/experimental/metalink/test/shortClientDisconnect
new file mode 100755
index 00000000..a36169e8
--- /dev/null
+++ b/plugins/experimental/metalink/test/shortClientDisconnect
@@ -0,0 +1,85 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 shortClientDisconnect
+# The proxy doesn't crash if the client disconnects before the proxy
+# sends the response headers'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - Why didn\'t the test finish yet?'
+
+  reactor.stop()
+
+reactor.callLater(3, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.write('shortClientDisconnect0')
+
+        def callback():
+          ctx.write('shortClientDisconnect1')
+
+          # Open another connection
+          class factory(protocol.ClientFactory):
+            def clientConnectionFailed(ctx, connector, reason):
+              print 'not ok 1 - Did the proxy crash?  (Can\'t open another connection to it.)'
+
+              reactor.stop()
+
+            class protocol(protocol.Protocol):
+              def connectionMade(ctx):
+                print 'ok 1 - The proxy didn\'t crash (opened another connection to it)'
+
+                reactor.stop()
+
+          reactor.callLater(1, tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect)
+
+        reactor.callLater(1, callback)
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(protocol.Protocol):
+    def connectionMade(ctx):
+      ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+      # Disconnect before the proxy sends the response headers
+      ctx.transport.loseConnection()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/shortContentLengthDisconnect b/plugins/experimental/metalink/test/shortContentLengthDisconnect
new file mode 100755
index 00000000..b2a74fa6
--- /dev/null
+++ b/plugins/experimental/metalink/test/shortContentLengthDisconnect
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..2 shortContentLengthDisconnect
+# The proxy sends the right Content-Length header and closes the
+# client connection if the origin disconnects before the proxy sends
+# the response headers'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 2 - The client was left hanging'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.setHeader('Content-Length', 29)
+        ctx.write('shortContentLengthDisconnect')
+
+        # Disconnect before the proxy sends the response headers
+        ctx.transport.loseConnection()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'ok 2 - The client connection closed'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        if v != '29':
+          print 'not',
+
+          # Who cares what happens now?
+          reactor.stop()
+
+        print 'ok 1 - Content-Length header'
+
+    # Avoid calling undefined handleResponse() at the end of the
+    # message (if the proxy sent the wrong Content-Length header).
+    # (Override connectionLost() when the proxy closes the client
+    # connection or we stop the reactor.)
+    def handleResponseEnd(ctx):
+      pass
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/metalink/test/zero b/plugins/experimental/metalink/test/zero
new file mode 100755
index 00000000..3605a2be
--- /dev/null
+++ b/plugins/experimental/metalink/test/zero
@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed
+# with this work for additional information regarding copyright
+# ownership.  The ASF licenses this file to you under the Apache
+# License, Version 2.0 (the "License"); you may not use this file
+# except in compliance with the License.  You may obtain a copy of the
+# License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.  See the License for the specific language governing
+# permissions and limitations under the License.
+
+print '''1..1 zero
+# The proxy doesn't crash if the Content-Length is zero'''
+
+from twisted.internet import error, protocol, reactor, tcp
+from twisted.web import http
+
+def callback():
+  print 'not ok 1 - Why didn\'t the test finish yet?'
+
+  reactor.stop()
+
+reactor.callLater(1, callback)
+
+class factory(http.HTTPFactory):
+  class protocol(http.HTTPChannel):
+    class requestFactory(http.Request):
+      def requestReceived(ctx, method, target, version):
+
+        ctx.client = None
+        ctx.clientproto = version
+
+        ctx.setHeader('Content-Length', 0)
+        ctx.finish()
+
+origin = tcp.Port(0, factory())
+origin.startListening()
+
+print '# Listening on {0}:{1}'.format(*origin.socket.getsockname())
+
+class factory(protocol.ClientFactory):
+  def clientConnectionFailed(ctx, connector, reason):
+
+    print 'Bail out!'
+    reason.printTraceback()
+
+    reactor.stop()
+
+  class protocol(http.HTTPClient):
+    def connectionLost(ctx, reason):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - Did the proxy crash?  (The client connection closed.)'
+
+    connectionMade = lambda ctx: ctx.transport.write('GET {0}:{1} HTTP/1.1\r\n\r\n'.format(*origin.socket.getsockname()))
+
+    def handleEndHeaders(ctx):
+      try:
+        reactor.stop()
+
+      except error.ReactorNotRunning:
+        pass
+
+      else:
+        print 'not ok 1 - No Content-Length header'
+
+    def handleHeader(ctx, k, v):
+      if k.lower() == 'content-length':
+        if v != '0':
+          print 'not',
+
+        print 'ok 1 - Content-Length header'
+
+        reactor.stop()
+
+tcp.Connector('localhost', 8080, factory(), 30, None, reactor).connect()
+
+reactor.run()
diff --git a/plugins/experimental/mysql_remap/AUTHORS b/plugins/experimental/mysql_remap/AUTHORS
new file mode 100644
index 00000000..3c25016d
--- /dev/null
+++ b/plugins/experimental/mysql_remap/AUTHORS
@@ -0,0 +1,7 @@
+Author: Eric Balsa <ericb@apache.org>
+Original concept and code
+
+====
+
+Author: Nicolas Devillard
+INI parsing library
diff --git a/plugins/experimental/mysql_remap/README b/plugins/experimental/mysql_remap/README
new file mode 100644
index 00000000..ab224f42
--- /dev/null
+++ b/plugins/experimental/mysql_remap/README
@@ -0,0 +1,74 @@
+Apache Traffic Server MySQL-based remap plugin
+==============================================
+
+== Description ==
+  This is a basic plugin for doing dynamic "remaps" from a database. It essentially rewrites the incoming request's Host header / origin server connection
+to one retrieved from a database.
+
+The generic proxying setup is the following: 
+
+UA ----> Traffic Server ----> Origin Server
+
+Without the plugin a request like:
+
+GET /path/to/something HTTP/1.1
+Host: original.host.com
+
+Ends up requesting http://original.host.com/path/to/something
+
+With this plugin enabled, you can easily change that to anywhere you desire. Imagine the many possibilities....
+
+I have benchmarked this at about 9200 requests/sec (1.7k object) on a junky imac with mysql, ab & trafficserver local. Real performance
+is likely substantially higher up to your mysql's max queries / second. 
+
+== Build ==
+  A simple
+
+% make install
+
+should do it, assuming that you have the tsxs script in your search path. 
+This script is installed with your installation of Apache Traffic Server. 
+
+NOTE: you may need to open the Makefile and adjust the paths to MySQL client includes & libraries
+
+== Configuration ==
+Import the default schema to a database you create:
+
+mysql -u root -p -e "CREATE DATABASE mysql_remap;"   # create a new database
+mysql -u root -p mysql_remap < schema/import.sql     # import the provided schema
+
+insert some interesting values in mysql_remap.hostname & mysql_remap.map
+
+Traffic Server plugin configuration is done inside a global configuration file: /path/to/etc/trafficserver/plugin.config:
+
+  mysql_remap.so /path/to/sample.ini
+
+The INI file should contain the following values:
+
+[mysql_remap]
+mysql_host     = localhost   #default
+mysql_port     = 3306        #default
+mysql_username = root
+mysql_password = 
+mysql_database = mysql_remap #default
+
+To debug errors, start trafficserver manually using:
+
+/path/to/traffic_server -T "mysql_remap"
+
+And resolve any errors or warnings displayed.
+
+== Credits ==
+  * Eric Balsa
+  * ericb@apache.org / eric@ericbalsa.com
+  * http://www.ericbalsa.com
+
+== TODO == 
+  * some stupid bug in the ini parsing requiring a blank trailing \n
+  * make db backend pluggable
+  * handle mysql connections a bit more intelligently
+  * define a fallback host for missing remaps (instead of blindly issuing a 404)
+  * handle rewriting paths
+  * handle regexp in paths & hosts
+  * verify scheme switching
+  * ... many more ideas ...
diff --git a/plugins/experimental/mysql_remap/default.h b/plugins/experimental/mysql_remap/default.h
new file mode 100644
index 00000000..9ee6648f
--- /dev/null
+++ b/plugins/experimental/mysql_remap/default.h
@@ -0,0 +1,25 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#ifndef __DEFAULT_H__
+#define __DEFAULT_H__ 1
+
+static const char* PLUGIN_NAME = "mysql_remap";
+#define QSIZE 2048
+
+#endif // __DEFAULT_H__
diff --git a/plugins/experimental/mysql_remap/lib/dictionary.c b/plugins/experimental/mysql_remap/lib/dictionary.c
new file mode 100644
index 00000000..11a56a2d
--- /dev/null
+++ b/plugins/experimental/mysql_remap/lib/dictionary.c
@@ -0,0 +1,428 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*-------------------------------------------------------------------------*/
+/**
+   @file	dictionary.c
+   @author	N. Devillard
+   @date	Sep 2007
+   @version	$Revision: 1.27 $
+   @brief	Implements a dictionary for string variables.
+
+   This module implements a simple dictionary object, i.e. a list
+   of string/string associations. This object is useful to store e.g.
+   informations retrieved from a configuration file (ini files).
+*/
+/*--------------------------------------------------------------------------*/
+
+/*
+	$Id: dictionary.c,v 1.27 2007-11-23 21:39:18 ndevilla Exp $
+	$Revision: 1.27 $
+*/
+/*---------------------------------------------------------------------------
+   								Includes
+ ---------------------------------------------------------------------------*/
+#include "dictionary.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/** Maximum value size for integers and doubles. */
+#define MAXVALSZ	1024
+
+/** Minimal allocated number of entries in a dictionary */
+#define DICTMINSZ	128
+
+/** Invalid key token */
+#define DICT_INVALID_KEY    ((char*)-1)
+
+/*---------------------------------------------------------------------------
+  							Private functions
+ ---------------------------------------------------------------------------*/
+
+/* Doubles the allocated size associated to a pointer */
+/* 'size' is the current allocated size. */
+static void * mem_double(void * ptr, int size)
+{
+    void * newptr ;
+ 
+    newptr = calloc(2*size, 1);
+    if (newptr==NULL) {
+        return NULL ;
+    }
+    memcpy(newptr, ptr, size);
+    free(ptr);
+    return newptr ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Duplicate a string
+  @param    s String to duplicate
+  @return   Pointer to a newly allocated string, to be freed with free()
+
+  This is a replacement for strdup(). This implementation is provided
+  for systems that do not have it.
+ */
+/*--------------------------------------------------------------------------*/
+static char * xstrdup(char * s)
+{
+    char * t ;
+    if (!s)
+        return NULL ;
+    t = (char*)malloc(strlen(s)+1) ;
+    if (t) {
+        strcpy(t,s);
+    }
+    return t ;
+}
+
+/*---------------------------------------------------------------------------
+  							Function codes
+ ---------------------------------------------------------------------------*/
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Compute the hash key for a string.
+  @param	key		Character string to use for key.
+  @return	1 unsigned int on at least 32 bits.
+
+  This hash function has been taken from an Article in Dr Dobbs Journal.
+  This is normally a collision-free function, distributing keys evenly.
+  The key is stored anyway in the struct so that collision can be avoided
+  by comparing the key itself in last resort.
+ */
+/*--------------------------------------------------------------------------*/
+unsigned dictionary_hash(char * key)
+{
+	int			len ;
+	unsigned	hash ;
+	int			i ;
+
+	len = strlen(key);
+	for (hash=0, i=0 ; i<len ; i++) {
+		hash += (unsigned)key[i] ;
+		hash += (hash<<10);
+		hash ^= (hash>>6) ;
+	}
+	hash += (hash <<3);
+	hash ^= (hash >>11);
+	hash += (hash <<15);
+	return hash ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Create a new dictionary object.
+  @param	size	Optional initial size of the dictionary.
+  @return	1 newly allocated dictionary objet.
+
+  This function allocates a new dictionary object of given size and returns
+  it. If you do not know in advance (roughly) the number of entries in the
+  dictionary, give size=0.
+ */
+/*--------------------------------------------------------------------------*/
+dictionary * dictionary_new(int size)
+{
+	dictionary	*	d ;
+
+	/* If no size was specified, allocate space for DICTMINSZ */
+	if (size<DICTMINSZ) size=DICTMINSZ ;
+
+	if (!(d = (dictionary *)calloc(1, sizeof(dictionary)))) {
+		return NULL;
+	}
+	d->size = size ;
+	d->val  = (char **)calloc(size, sizeof(char*));
+	d->key  = (char **)calloc(size, sizeof(char*));
+	d->hash = (unsigned int *)calloc(size, sizeof(unsigned));
+	return d ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Delete a dictionary object
+  @param	d	dictionary object to deallocate.
+  @return	void
+
+  Deallocate a dictionary object and all memory associated to it.
+ */
+/*--------------------------------------------------------------------------*/
+void dictionary_del(dictionary * d)
+{
+	int		i ;
+
+	if (d==NULL) return ;
+	for (i=0 ; i<d->size ; i++) {
+		if (d->key[i]!=NULL)
+			free(d->key[i]);
+		if (d->val[i]!=NULL)
+			free(d->val[i]);
+	}
+	free(d->val);
+	free(d->key);
+	free(d->hash);
+	free(d);
+	return ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Get a value from a dictionary.
+  @param	d		dictionary object to search.
+  @param	key		Key to look for in the dictionary.
+  @param    def     Default value to return if key not found.
+  @return	1 pointer to internally allocated character string.
+
+  This function locates a key in a dictionary and returns a pointer to its
+  value, or the passed 'def' pointer if no such key can be found in
+  dictionary. The returned character pointer points to data internal to the
+  dictionary object, you should not try to free it or modify it.
+ */
+/*--------------------------------------------------------------------------*/
+char * dictionary_get(dictionary * d, char * key, char * def)
+{
+	unsigned	hash ;
+	int			i ;
+
+	hash = dictionary_hash(key);
+	for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]==NULL)
+            continue ;
+        /* Compare hash */
+		if (hash==d->hash[i]) {
+            /* Compare string, to avoid hash collisions */
+            if (!strcmp(key, d->key[i])) {
+				return d->val[i] ;
+			}
+		}
+	}
+	return def ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Set a value in a dictionary.
+  @param    d       dictionary object to modify.
+  @param    key     Key to modify or add.
+  @param    val     Value to add.
+  @return   int     0 if Ok, anything else otherwise
+
+  If the given key is found in the dictionary, the associated value is
+  replaced by the provided one. If the key cannot be found in the
+  dictionary, it is added to it.
+
+  It is Ok to provide a NULL value for val, but NULL values for the dictionary
+  or the key are considered as errors: the function will return immediately
+  in such a case.
+
+  Notice that if you dictionary_set a variable to NULL, a call to
+  dictionary_get will return a NULL value: the variable will be found, and
+  its value (NULL) is returned. In other words, setting the variable
+  content to NULL is equivalent to deleting the variable from the
+  dictionary. It is not possible (in this implementation) to have a key in
+  the dictionary without value.
+
+  This function returns non-zero in case of failure.
+ */
+/*--------------------------------------------------------------------------*/
+int dictionary_set(dictionary * d, char * key, char * val)
+{
+	int			i ;
+	unsigned	hash ;
+
+	if (d==NULL || key==NULL) return -1 ;
+	
+	/* Compute hash for this key */
+	hash = dictionary_hash(key) ;
+	/* Find if value is already in dictionary */
+	if (d->n>0) {
+		for (i=0 ; i<d->size ; i++) {
+            if (d->key[i]==NULL)
+                continue ;
+			if (hash==d->hash[i]) { /* Same hash value */
+				if (!strcmp(key, d->key[i])) {	 /* Same key */
+					/* Found a value: modify and return */
+					if (d->val[i]!=NULL)
+						free(d->val[i]);
+                    d->val[i] = val ? xstrdup(val) : NULL ;
+                    /* Value has been modified: return */
+					return 0 ;
+				}
+			}
+		}
+	}
+	/* Add a new value */
+	/* See if dictionary needs to grow */
+	if (d->n==d->size) {
+
+		/* Reached maximum size: reallocate dictionary */
+		d->val  = (char **)mem_double(d->val,  d->size * sizeof(char*)) ;
+		d->key  = (char **)mem_double(d->key,  d->size * sizeof(char*)) ;
+		d->hash = (unsigned int *)mem_double(d->hash, d->size * sizeof(unsigned)) ;
+        if ((d->val==NULL) || (d->key==NULL) || (d->hash==NULL)) {
+            /* Cannot grow dictionary */
+            return -1 ;
+        }
+		/* Double size */
+		d->size *= 2 ;
+	}
+
+    /* Insert key in the first empty slot */
+    for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]==NULL) {
+            /* Add key here */
+            break ;
+        }
+    }
+	/* Copy key */
+	d->key[i]  = xstrdup(key);
+    d->val[i]  = val ? xstrdup(val) : NULL ;
+	d->hash[i] = hash;
+	d->n ++ ;
+	return 0 ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Delete a key in a dictionary
+  @param	d		dictionary object to modify.
+  @param	key		Key to remove.
+  @return   void
+
+  This function deletes a key in a dictionary. Nothing is done if the
+  key cannot be found.
+ */
+/*--------------------------------------------------------------------------*/
+void dictionary_unset(dictionary * d, char * key)
+{
+	unsigned	hash ;
+	int			i ;
+
+	if (key == NULL) {
+		return;
+	}
+
+	hash = dictionary_hash(key);
+	for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]==NULL)
+            continue ;
+        /* Compare hash */
+		if (hash==d->hash[i]) {
+            /* Compare string, to avoid hash collisions */
+            if (!strcmp(key, d->key[i])) {
+                /* Found key */
+                break ;
+			}
+		}
+	}
+    if (i>=d->size)
+        /* Key not found */
+        return ;
+
+    free(d->key[i]);
+    d->key[i] = NULL ;
+    if (d->val[i]!=NULL) {
+        free(d->val[i]);
+        d->val[i] = NULL ;
+    }
+    d->hash[i] = 0 ;
+    d->n -- ;
+    return ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Dump a dictionary to an opened file pointer.
+  @param	d	Dictionary to dump
+  @param	f	Opened file pointer.
+  @return	void
+
+  Dumps a dictionary onto an opened file pointer. Key pairs are printed out
+  as @c [Key]=[Value], one per line. It is Ok to provide stdout or stderr as
+  output file pointers.
+ */
+/*--------------------------------------------------------------------------*/
+void dictionary_dump(dictionary * d, FILE * out)
+{
+	int		i ;
+
+	if (d==NULL || out==NULL) return ;
+	if (d->n<1) {
+		fprintf(out, "empty dictionary\n");
+		return ;
+	}
+	for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]) {
+            fprintf(out, "%20s\t[%s]\n",
+                    d->key[i],
+                    d->val[i] ? d->val[i] : "UNDEF");
+        }
+	}
+	return ;
+}
+
+
+/* Test code */
+#ifdef TESTDIC
+#define NVALS 20000
+int main(int argc, char *argv[])
+{
+	dictionary	*	d ;
+	char	*	val ;
+	int			i ;
+	char		cval[90] ;
+
+	/* Allocate dictionary */
+	printf("allocating...\n");
+	d = dictionary_new(0);
+	
+	/* Set values in dictionary */
+	printf("setting %d values...\n", NVALS);
+	for (i=0 ; i<NVALS ; i++) {
+		sprintf(cval, "%04d", i);
+		dictionary_set(d, cval, "salut");
+	}
+	printf("getting %d values...\n", NVALS);
+	for (i=0 ; i<NVALS ; i++) {
+		sprintf(cval, "%04d", i);
+		val = dictionary_get(d, cval, DICT_INVALID_KEY);
+		if (val==DICT_INVALID_KEY) {
+			printf("cannot get value for key [%s]\n", cval);
+		}
+	}
+    printf("unsetting %d values...\n", NVALS);
+	for (i=0 ; i<NVALS ; i++) {
+		sprintf(cval, "%04d", i);
+		dictionary_unset(d, cval);
+	}
+    if (d->n != 0) {
+        printf("error deleting values\n");
+    }
+	printf("deallocating...\n");
+	dictionary_del(d);
+	return 0 ;
+}
+#endif
+/* vim: set ts=4 et sw=4 tw=75 */
diff --git a/plugins/experimental/mysql_remap/lib/dictionary.h b/plugins/experimental/mysql_remap/lib/dictionary.h
new file mode 100644
index 00000000..0cd672d7
--- /dev/null
+++ b/plugins/experimental/mysql_remap/lib/dictionary.h
@@ -0,0 +1,197 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/*-------------------------------------------------------------------------*/
+/**
+   @file    dictionary.h
+   @author  N. Devillard
+   @date    Sep 2007
+   @version $Revision: 1.12 $
+   @brief   Implements a dictionary for string variables.
+
+   This module implements a simple dictionary object, i.e. a list
+   of string/string associations. This object is useful to store e.g.
+   informations retrieved from a configuration file (ini files).
+*/
+/*--------------------------------------------------------------------------*/
+
+/*
+	$Id: dictionary.h,v 1.12 2007-11-23 21:37:00 ndevilla Exp $
+	$Author: ndevilla $
+	$Date: 2007-11-23 21:37:00 $
+	$Revision: 1.12 $
+*/
+
+#ifndef _DICTIONARY_H_
+#define _DICTIONARY_H_
+
+/*---------------------------------------------------------------------------
+   								Includes
+ ---------------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/*---------------------------------------------------------------------------
+   								New types
+ ---------------------------------------------------------------------------*/
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Dictionary object
+
+  This object contains a list of string/string associations. Each
+  association is identified by a unique string key. Looking up values
+  in the dictionary is speeded up by the use of a (hopefully collision-free)
+  hash function.
+ */
+/*-------------------------------------------------------------------------*/
+typedef struct _dictionary_ {
+	int				n ;		/** Number of entries in dictionary */
+	int				size ;	/** Storage size */
+	char 		**	val ;	/** List of string values */
+	char 		**  key ;	/** List of string keys */
+	unsigned	 *	hash ;	/** List of hash values for keys */
+} dictionary ;
+
+
+/*---------------------------------------------------------------------------
+  							Function prototypes
+ ---------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Compute the hash key for a string.
+  @param    key     Character string to use for key.
+  @return   1 unsigned int on at least 32 bits.
+
+  This hash function has been taken from an Article in Dr Dobbs Journal.
+  This is normally a collision-free function, distributing keys evenly.
+  The key is stored anyway in the struct so that collision can be avoided
+  by comparing the key itself in last resort.
+ */
+/*--------------------------------------------------------------------------*/
+unsigned dictionary_hash(char * key);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Create a new dictionary object.
+  @param    size    Optional initial size of the dictionary.
+  @return   1 newly allocated dictionary objet.
+
+  This function allocates a new dictionary object of given size and returns
+  it. If you do not know in advance (roughly) the number of entries in the
+  dictionary, give size=0.
+ */
+/*--------------------------------------------------------------------------*/
+dictionary * dictionary_new(int size);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Delete a dictionary object
+  @param    d   dictionary object to deallocate.
+  @return   void
+
+  Deallocate a dictionary object and all memory associated to it.
+ */
+/*--------------------------------------------------------------------------*/
+void dictionary_del(dictionary * vd);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get a value from a dictionary.
+  @param    d       dictionary object to search.
+  @param    key     Key to look for in the dictionary.
+  @param    def     Default value to return if key not found.
+  @return   1 pointer to internally allocated character string.
+
+  This function locates a key in a dictionary and returns a pointer to its
+  value, or the passed 'def' pointer if no such key can be found in
+  dictionary. The returned character pointer points to data internal to the
+  dictionary object, you should not try to free it or modify it.
+ */
+/*--------------------------------------------------------------------------*/
+char * dictionary_get(dictionary * d, char * key, char * def);
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Set a value in a dictionary.
+  @param    d       dictionary object to modify.
+  @param    key     Key to modify or add.
+  @param    val     Value to add.
+  @return   int     0 if Ok, anything else otherwise
+
+  If the given key is found in the dictionary, the associated value is
+  replaced by the provided one. If the key cannot be found in the
+  dictionary, it is added to it.
+
+  It is Ok to provide a NULL value for val, but NULL values for the dictionary
+  or the key are considered as errors: the function will return immediately
+  in such a case.
+
+  Notice that if you dictionary_set a variable to NULL, a call to
+  dictionary_get will return a NULL value: the variable will be found, and
+  its value (NULL) is returned. In other words, setting the variable
+  content to NULL is equivalent to deleting the variable from the
+  dictionary. It is not possible (in this implementation) to have a key in
+  the dictionary without value.
+
+  This function returns non-zero in case of failure.
+ */
+/*--------------------------------------------------------------------------*/
+int dictionary_set(dictionary * vd, char * key, char * val);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Delete a key in a dictionary
+  @param    d       dictionary object to modify.
+  @param    key     Key to remove.
+  @return   void
+
+  This function deletes a key in a dictionary. Nothing is done if the
+  key cannot be found.
+ */
+/*--------------------------------------------------------------------------*/
+void dictionary_unset(dictionary * d, char * key);
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Dump a dictionary to an opened file pointer.
+  @param    d   Dictionary to dump
+  @param    f   Opened file pointer.
+  @return   void
+
+  Dumps a dictionary onto an opened file pointer. Key pairs are printed out
+  as @c [Key]=[Value], one per line. It is Ok to provide stdout or stderr as
+  output file pointers.
+ */
+/*--------------------------------------------------------------------------*/
+void dictionary_dump(dictionary * d, FILE * out);
+
+#endif
diff --git a/plugins/experimental/mysql_remap/lib/iniparser.c b/plugins/experimental/mysql_remap/lib/iniparser.c
new file mode 100644
index 00000000..14b8e3cf
--- /dev/null
+++ b/plugins/experimental/mysql_remap/lib/iniparser.c
@@ -0,0 +1,669 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/*-------------------------------------------------------------------------*/
+/**
+   @file    iniparser.c
+   @author  N. Devillard
+   @date    Sep 2007
+   @version 3.0
+   @brief   Parser for ini files.
+*/
+/*--------------------------------------------------------------------------*/
+/*
+    $Id: iniparser.c,v 2.18 2008-01-03 18:35:39 ndevilla Exp $
+    $Revision: 2.18 $
+    $Date: 2008-01-03 18:35:39 $
+*/
+/*---------------------------- Includes ------------------------------------*/
+#include <ctype.h>
+#include "iniparser.h"
+
+/*---------------------------- Defines -------------------------------------*/
+#define ASCIILINESZ         (1024)
+#define INI_INVALID_KEY     ((char*)-1)
+
+/*---------------------------------------------------------------------------
+                        Private to this module
+ ---------------------------------------------------------------------------*/
+/**
+ * This enum stores the status for each parsed line (internal use only).
+ */
+typedef enum _line_status_ {
+    LINE_UNPROCESSED,
+    LINE_ERROR,
+    LINE_EMPTY,
+    LINE_COMMENT,
+    LINE_SECTION,
+    LINE_VALUE
+} line_status ;
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Convert a string to lowercase.
+  @param	s	String to convert.
+  @return	ptr to statically allocated string.
+
+  This function returns a pointer to a statically allocated string
+  containing a lowercased version of the input string. Do not free
+  or modify the returned string! Since the returned string is statically
+  allocated, it will be modified at each function call (not re-entrant).
+ */
+/*--------------------------------------------------------------------------*/
+static char * strlwc(const char * s)
+{
+    static char l[ASCIILINESZ+1];
+    int i ;
+
+    if (s==NULL) return NULL ;
+    memset(l, 0, ASCIILINESZ+1);
+    i=0 ;
+    while (s[i] && i<ASCIILINESZ) {
+        l[i] = (char)tolower((int)s[i]);
+        i++ ;
+    }
+    l[ASCIILINESZ]=(char)0;
+    return l ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Remove blanks at the beginning and the end of a string.
+  @param	s	String to parse.
+  @return	ptr to statically allocated string.
+
+  This function returns a pointer to a statically allocated string,
+  which is identical to the input string, except that all blank
+  characters at the end and the beg. of the string have been removed.
+  Do not free or modify the returned string! Since the returned string
+  is statically allocated, it will be modified at each function call
+  (not re-entrant).
+ */
+/*--------------------------------------------------------------------------*/
+static char * strstrip(char * s)
+{
+    static char l[ASCIILINESZ+1];
+	char * last ;
+	
+    if (s==NULL) return NULL ;
+    
+	while (isspace((int)*s) && *s) s++;
+	memset(l, 0, ASCIILINESZ+1);
+	strcpy(l, s);
+	last = l + strlen(l);
+	while (last > l) {
+		if (!isspace((int)*(last-1)))
+			break ;
+		last -- ;
+	}
+	*last = (char)0;
+	return (char*)l ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get number of sections in a dictionary
+  @param    d   Dictionary to examine
+  @return   int Number of sections found in dictionary
+
+  This function returns the number of sections found in a dictionary.
+  The test to recognize sections is done on the string stored in the
+  dictionary: a section name is given as "section" whereas a key is
+  stored as "section:key", thus the test looks for entries that do not
+  contain a colon.
+
+  This clearly fails in the case a section name contains a colon, but
+  this should simply be avoided.
+
+  This function returns -1 in case of error.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_getnsec(dictionary * d)
+{
+    int i ;
+    int nsec ;
+
+    if (d==NULL) return -1 ;
+    nsec=0 ;
+    for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]==NULL)
+            continue ;
+        if (strchr(d->key[i], ':')==NULL) {
+            nsec ++ ;
+        }
+    }
+    return nsec ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get name for section n in a dictionary.
+  @param    d   Dictionary to examine
+  @param    n   Section number (from 0 to nsec-1).
+  @return   Pointer to char string
+
+  This function locates the n-th section in a dictionary and returns
+  its name as a pointer to a string statically allocated inside the
+  dictionary. Do not free or modify the returned string!
+
+  This function returns NULL in case of error.
+ */
+/*--------------------------------------------------------------------------*/
+char * iniparser_getsecname(dictionary * d, int n)
+{
+    int i ;
+    int foundsec ;
+
+    if (d==NULL || n<0) return NULL ;
+    foundsec=0 ;
+    for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]==NULL)
+            continue ;
+        if (strchr(d->key[i], ':')==NULL) {
+            foundsec++ ;
+            if (foundsec>n)
+                break ;
+        }
+    }
+    if (foundsec<=n) {
+        return NULL ;
+    }
+    return d->key[i] ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Dump a dictionary to an opened file pointer.
+  @param    d   Dictionary to dump.
+  @param    f   Opened file pointer to dump to.
+  @return   void
+
+  This function prints out the contents of a dictionary, one element by
+  line, onto the provided file pointer. It is OK to specify @c stderr
+  or @c stdout as output files. This function is meant for debugging
+  purposes mostly.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_dump(dictionary * d, FILE * f)
+{
+    int     i ;
+
+    if (d==NULL || f==NULL) return ;
+    for (i=0 ; i<d->size ; i++) {
+        if (d->key[i]==NULL)
+            continue ;
+        if (d->val[i]!=NULL) {
+            fprintf(f, "[%s]=[%s]\n", d->key[i], d->val[i]);
+        } else {
+            fprintf(f, "[%s]=UNDEF\n", d->key[i]);
+        }
+    }
+    return ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Save a dictionary to a loadable ini file
+  @param    d   Dictionary to dump
+  @param    f   Opened file pointer to dump to
+  @return   void
+
+  This function dumps a given dictionary into a loadable ini file.
+  It is Ok to specify @c stderr or @c stdout as output files.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_dump_ini(dictionary * d, FILE * f)
+{
+    int     i, j ;
+    char    keym[ASCIILINESZ+1];
+    int     nsec ;
+    char *  secname ;
+    int     seclen ;
+
+    if (d==NULL || f==NULL) return ;
+
+    nsec = iniparser_getnsec(d);
+    if (nsec<1) {
+        /* No section in file: dump all keys as they are */
+        for (i=0 ; i<d->size ; i++) {
+            if (d->key[i]==NULL)
+                continue ;
+            fprintf(f, "%s = %s\n", d->key[i], d->val[i]);
+        }
+        return ;
+    }
+    for (i=0 ; i<nsec ; i++) {
+        secname = iniparser_getsecname(d, i) ;
+        seclen  = (int)strlen(secname);
+        fprintf(f, "\n[%s]\n", secname);
+        sprintf(keym, "%s:", secname);
+        for (j=0 ; j<d->size ; j++) {
+            if (d->key[j]==NULL)
+                continue ;
+            if (!strncmp(d->key[j], keym, seclen+1)) {
+                fprintf(f,
+                        "%-30s = %s\n",
+                        d->key[j]+seclen+1,
+                        d->val[j] ? d->val[j] : "");
+            }
+        }
+    }
+    fprintf(f, "\n");
+    return ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key
+  @param    d       Dictionary to search
+  @param    key     Key string to look for
+  @param    def     Default value to return if key not found.
+  @return   pointer to statically allocated character string
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the pointer passed as 'def' is returned.
+  The returned char pointer is pointing to a string allocated in
+  the dictionary, do not free or modify it.
+ */
+/*--------------------------------------------------------------------------*/
+char * iniparser_getstring(dictionary * d, const char * key, char * def)
+{
+    char * lc_key ;
+    char * sval ;
+
+    if (d==NULL || key==NULL)
+        return def ;
+
+    lc_key = strlwc(key);
+    sval = dictionary_get(d, lc_key, def);
+    return sval ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key, convert to an int
+  @param    d Dictionary to search
+  @param    key Key string to look for
+  @param    notfound Value to return in case of error
+  @return   integer
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the notfound value is returned.
+
+  Supported values for integers include the usual C notation
+  so decimal, octal (starting with 0) and hexadecimal (starting with 0x)
+  are supported. Examples:
+
+  "42"      ->  42
+  "042"     ->  34 (octal -> decimal)
+  "0x42"    ->  66 (hexa  -> decimal)
+
+  Warning: the conversion may overflow in various ways. Conversion is
+  totally outsourced to strtol(), see the associated man page for overflow
+  handling.
+
+  Credits: Thanks to A. Becker for suggesting strtol()
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_getint(dictionary * d, const char * key, int notfound)
+{
+    char    *   str ;
+
+    str = iniparser_getstring(d, key, INI_INVALID_KEY);
+    if (str==INI_INVALID_KEY) return notfound ;
+    return (int)strtol(str, NULL, 0);
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key, convert to a double
+  @param    d Dictionary to search
+  @param    key Key string to look for
+  @param    notfound Value to return in case of error
+  @return   double
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the notfound value is returned.
+ */
+/*--------------------------------------------------------------------------*/
+double iniparser_getdouble(dictionary * d, char * key, double notfound)
+{
+    char    *   str ;
+
+    str = iniparser_getstring(d, key, INI_INVALID_KEY);
+    if (str==INI_INVALID_KEY) return notfound ;
+    return atof(str);
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key, convert to a boolean
+  @param    d Dictionary to search
+  @param    key Key string to look for
+  @param    notfound Value to return in case of error
+  @return   integer
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the notfound value is returned.
+
+  A true boolean is found if one of the following is matched:
+
+  - A string starting with 'y'
+  - A string starting with 'Y'
+  - A string starting with 't'
+  - A string starting with 'T'
+  - A string starting with '1'
+
+  A false boolean is found if one of the following is matched:
+
+  - A string starting with 'n'
+  - A string starting with 'N'
+  - A string starting with 'f'
+  - A string starting with 'F'
+  - A string starting with '0'
+
+  The notfound value returned if no boolean is identified, does not
+  necessarily have to be 0 or 1.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_getboolean(dictionary * d, const char * key, int notfound)
+{
+    char    *   c ;
+    int         ret ;
+
+    c = iniparser_getstring(d, key, INI_INVALID_KEY);
+    if (c==INI_INVALID_KEY) return notfound ;
+    if (c[0]=='y' || c[0]=='Y' || c[0]=='1' || c[0]=='t' || c[0]=='T') {
+        ret = 1 ;
+    } else if (c[0]=='n' || c[0]=='N' || c[0]=='0' || c[0]=='f' || c[0]=='F') {
+        ret = 0 ;
+    } else {
+        ret = notfound ;
+    }
+    return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Finds out if a given entry exists in a dictionary
+  @param    ini     Dictionary to search
+  @param    entry   Name of the entry to look for
+  @return   integer 1 if entry exists, 0 otherwise
+
+  Finds out if a given entry exists in the dictionary. Since sections
+  are stored as keys with NULL associated values, this is the only way
+  of querying for the presence of sections in a dictionary.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_find_entry(
+    dictionary  *   ini,
+    char        *   entry
+)
+{
+    int found=0 ;
+    if (iniparser_getstring(ini, entry, INI_INVALID_KEY)!=INI_INVALID_KEY) {
+        found = 1 ;
+    }
+    return found ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Set an entry in a dictionary.
+  @param    ini     Dictionary to modify.
+  @param    entry   Entry to modify (entry name)
+  @param    val     New value to associate to the entry.
+  @return   int 0 if Ok, -1 otherwise.
+
+  If the given entry can be found in the dictionary, it is modified to
+  contain the provided value. If it cannot be found, -1 is returned.
+  It is Ok to set val to NULL.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_set(dictionary * ini, char * entry, char * val)
+{
+    return dictionary_set(ini, strlwc(entry), val) ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Delete an entry in a dictionary
+  @param    ini     Dictionary to modify
+  @param    entry   Entry to delete (entry name)
+  @return   void
+
+  If the given entry can be found, it is deleted from the dictionary.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_unset(dictionary * ini, char * entry)
+{
+    dictionary_unset(ini, strlwc(entry));
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief	Load a single line from an INI file
+  @param    input_line  Input line, may be concatenated multi-line input
+  @param    section     Output space to store section
+  @param    key         Output space to store key
+  @param    value       Output space to store value
+  @return   line_status value
+ */
+/*--------------------------------------------------------------------------*/
+static line_status iniparser_line(
+    char * input_line,
+    char * section,
+    char * key,
+    char * value)
+{   
+    line_status sta ;
+    char        line[ASCIILINESZ+1];
+    int         len ;
+
+    strcpy(line, strstrip(input_line));
+    len = (int)strlen(line);
+
+    sta = LINE_UNPROCESSED ;
+    if (len<1) {
+        /* Empty line */
+        sta = LINE_EMPTY ;
+    } else if (line[0]=='#') {
+        /* Comment line */
+        sta = LINE_COMMENT ; 
+    } else if (line[0]=='[' && line[len-1]==']') {
+        /* Section name */
+        sscanf(line, "[%[^]]", section);
+        strcpy(section, strstrip(section));
+        strcpy(section, strlwc(section));
+        sta = LINE_SECTION ;
+    } else if (sscanf (line, "%[^=] = \"%[^\"]\"", key, value) == 2
+           ||  sscanf (line, "%[^=] = '%[^\']'",   key, value) == 2
+           ||  sscanf (line, "%[^=] = %[^;#]",     key, value) == 2) {
+        /* Usual key=value, with or without comments */
+        strcpy(key, strstrip(key));
+        strcpy(key, strlwc(key));
+        strcpy(value, strstrip(value));
+        /*
+         * sscanf cannot handle '' or "" as empty values
+         * this is done here
+         */
+        if (!strcmp(value, "\"\"") || (!strcmp(value, "''"))) {
+            value[0]=0 ;
+        }
+        sta = LINE_VALUE ;
+    } else if (sscanf(line, "%[^=] = %[;#]", key, value)==2
+           ||  sscanf(line, "%[^=] %[=]", key, value) == 2) {
+        /*
+         * Special cases:
+         * key=
+         * key=;
+         * key=#
+         */
+        strcpy(key, strstrip(key));
+        strcpy(key, strlwc(key));
+        value[0]=0 ;
+        sta = LINE_VALUE ;
+    } else {
+        /* Generate syntax error */
+        sta = LINE_ERROR ;
+    }
+    return sta ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Parse an ini file and return an allocated dictionary object
+  @param    ininame Name of the ini file to read.
+  @return   Pointer to newly allocated dictionary
+
+  This is the parser for ini files. This function is called, providing
+  the name of the file to be read. It returns a dictionary object that
+  should not be accessed directly, but through accessor functions
+  instead.
+
+  The returned dictionary must be freed using iniparser_freedict().
+ */
+/*--------------------------------------------------------------------------*/
+dictionary * iniparser_load(const char * ininame)
+{
+    FILE * in ;
+
+    char line    [ASCIILINESZ+1] ;
+    char section [ASCIILINESZ+1] ;
+    char key     [ASCIILINESZ+1] ;
+    char tmp     [ASCIILINESZ+1] ;
+    char val     [ASCIILINESZ+1] ;
+
+    int  last=0 ;
+    int  len ;
+    int  lineno=0 ;
+    int  errs=0;
+
+    dictionary * dict ;
+
+    if ((in=fopen(ininame, "r"))==NULL) {
+        fprintf(stderr, "iniparser: cannot open %s\n", ininame);
+        return NULL ;
+    }
+
+    dict = dictionary_new(0) ;
+    if (!dict) {
+        fclose(in);
+        return NULL ;
+    }
+
+    memset(line,    0, ASCIILINESZ);
+    memset(section, 0, ASCIILINESZ);
+    memset(key,     0, ASCIILINESZ);
+    memset(val,     0, ASCIILINESZ);
+    last=0 ;
+
+    while (fgets(line+last, ASCIILINESZ-last, in)!=NULL) {
+        lineno++ ;
+        len = (int)strlen(line)-1;
+        /* Safety check against buffer overflows */
+        if (line[len]!='\n') {
+            fprintf(stderr,
+                    "iniparser: input line too long in %s (%d)\n",
+                    ininame,
+                    lineno);
+            dictionary_del(dict);
+            fclose(in);
+            return NULL ;
+        }
+        /* Get rid of \n and spaces at end of line */
+        while ((len>=0) &&
+                ((line[len]=='\n') || (isspace(line[len])))) {
+            line[len]=0 ;
+            len-- ;
+        }
+        /* Detect multi-line */
+        if (line[len]=='\\') {
+            /* Multi-line value */
+            last=len ;
+            continue ;
+        } else {
+            last=0 ;
+        }
+        switch (iniparser_line(line, section, key, val)) {
+            case LINE_EMPTY:
+            case LINE_COMMENT:
+            break ;
+
+            case LINE_SECTION:
+            errs = dictionary_set(dict, section, NULL);
+            break ;
+
+            case LINE_VALUE:
+            sprintf(tmp, "%s:%s", section, key);
+            errs = dictionary_set(dict, tmp, val) ;
+            break ;
+
+            case LINE_ERROR:
+            fprintf(stderr, "iniparser: syntax error in %s (%d):\n",
+                    ininame,
+                    lineno);
+            fprintf(stderr, "-> %s\n", line);
+            errs++ ;
+            break;
+
+            default:
+            break ;
+        }
+        memset(line, 0, ASCIILINESZ);
+        last=0;
+        if (errs<0) {
+            fprintf(stderr, "iniparser: memory allocation failure\n");
+            break ;
+        }
+    }
+    if (errs) {
+        dictionary_del(dict);
+        dict = NULL ;
+    }
+    fclose(in);
+    return dict ;
+}
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Free all memory associated to an ini dictionary
+  @param    d Dictionary to free
+  @return   void
+
+  Free all memory associated to an ini dictionary.
+  It is mandatory to call this function before the dictionary object
+  gets out of the current context.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_freedict(dictionary * d)
+{
+    dictionary_del(d);
+}
+
+/* vim: set ts=4 et sw=4 tw=75 */
diff --git a/plugins/experimental/mysql_remap/lib/iniparser.h b/plugins/experimental/mysql_remap/lib/iniparser.h
new file mode 100644
index 00000000..033ac5d4
--- /dev/null
+++ b/plugins/experimental/mysql_remap/lib/iniparser.h
@@ -0,0 +1,303 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/*-------------------------------------------------------------------------*/
+/**
+   @file    iniparser.h
+   @author  N. Devillard
+   @date    Sep 2007
+   @version 3.0
+   @brief   Parser for ini files.
+*/
+/*--------------------------------------------------------------------------*/
+
+/*
+	$Id: iniparser.h,v 1.24 2007-11-23 21:38:19 ndevilla Exp $
+	$Revision: 1.24 $
+*/
+
+#ifndef _INIPARSER_H_
+#define _INIPARSER_H_
+
+/*---------------------------------------------------------------------------
+   								Includes
+ ---------------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * The following #include is necessary on many Unixes but not Linux.
+ * It is not needed for Windows platforms.
+ * Uncomment it if needed.
+ */
+/* #include <unistd.h> */
+
+#include "dictionary.h"
+
+/*---------------------------------------------------------------------------
+   								Macros
+ ---------------------------------------------------------------------------*/
+/** For backwards compatibility only */
+#define iniparser_getstr(d, k)  iniparser_getstring(d, k, NULL)
+#define iniparser_setstr        iniparser_setstring
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get number of sections in a dictionary
+  @param    d   Dictionary to examine
+  @return   int Number of sections found in dictionary
+
+  This function returns the number of sections found in a dictionary.
+  The test to recognize sections is done on the string stored in the
+  dictionary: a section name is given as "section" whereas a key is
+  stored as "section:key", thus the test looks for entries that do not
+  contain a colon.
+
+  This clearly fails in the case a section name contains a colon, but
+  this should simply be avoided.
+
+  This function returns -1 in case of error.
+ */
+/*--------------------------------------------------------------------------*/
+
+int iniparser_getnsec(dictionary * d);
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get name for section n in a dictionary.
+  @param    d   Dictionary to examine
+  @param    n   Section number (from 0 to nsec-1).
+  @return   Pointer to char string
+
+  This function locates the n-th section in a dictionary and returns
+  its name as a pointer to a string statically allocated inside the
+  dictionary. Do not free or modify the returned string!
+
+  This function returns NULL in case of error.
+ */
+/*--------------------------------------------------------------------------*/
+
+char * iniparser_getsecname(dictionary * d, int n);
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Save a dictionary to a loadable ini file
+  @param    d   Dictionary to dump
+  @param    f   Opened file pointer to dump to
+  @return   void
+
+  This function dumps a given dictionary into a loadable ini file.
+  It is Ok to specify @c stderr or @c stdout as output files.
+ */
+/*--------------------------------------------------------------------------*/
+
+void iniparser_dump_ini(dictionary * d, FILE * f);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Dump a dictionary to an opened file pointer.
+  @param    d   Dictionary to dump.
+  @param    f   Opened file pointer to dump to.
+  @return   void
+
+  This function prints out the contents of a dictionary, one element by
+  line, onto the provided file pointer. It is OK to specify @c stderr
+  or @c stdout as output files. This function is meant for debugging
+  purposes mostly.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_dump(dictionary * d, FILE * f);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key
+  @param    d       Dictionary to search
+  @param    key     Key string to look for
+  @param    def     Default value to return if key not found.
+  @return   pointer to statically allocated character string
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the pointer passed as 'def' is returned.
+  The returned char pointer is pointing to a string allocated in
+  the dictionary, do not free or modify it.
+ */
+/*--------------------------------------------------------------------------*/
+char * iniparser_getstring(dictionary * d, const char * key, char * def);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key, convert to an int
+  @param    d Dictionary to search
+  @param    key Key string to look for
+  @param    notfound Value to return in case of error
+  @return   integer
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the notfound value is returned.
+
+  Supported values for integers include the usual C notation
+  so decimal, octal (starting with 0) and hexadecimal (starting with 0x)
+  are supported. Examples:
+
+  - "42"      ->  42
+  - "042"     ->  34 (octal -> decimal)
+  - "0x42"    ->  66 (hexa  -> decimal)
+
+  Warning: the conversion may overflow in various ways. Conversion is
+  totally outsourced to strtol(), see the associated man page for overflow
+  handling.
+
+  Credits: Thanks to A. Becker for suggesting strtol()
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_getint(dictionary * d, const char * key, int notfound);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key, convert to a double
+  @param    d Dictionary to search
+  @param    key Key string to look for
+  @param    notfound Value to return in case of error
+  @return   double
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the notfound value is returned.
+ */
+/*--------------------------------------------------------------------------*/
+double iniparser_getdouble(dictionary * d, char * key, double notfound);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Get the string associated to a key, convert to a boolean
+  @param    d Dictionary to search
+  @param    key Key string to look for
+  @param    notfound Value to return in case of error
+  @return   integer
+
+  This function queries a dictionary for a key. A key as read from an
+  ini file is given as "section:key". If the key cannot be found,
+  the notfound value is returned.
+
+  A true boolean is found if one of the following is matched:
+
+  - A string starting with 'y'
+  - A string starting with 'Y'
+  - A string starting with 't'
+  - A string starting with 'T'
+  - A string starting with '1'
+
+  A false boolean is found if one of the following is matched:
+
+  - A string starting with 'n'
+  - A string starting with 'N'
+  - A string starting with 'f'
+  - A string starting with 'F'
+  - A string starting with '0'
+
+  The notfound value returned if no boolean is identified, does not
+  necessarily have to be 0 or 1.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_getboolean(dictionary * d, const char * key, int notfound);
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Set an entry in a dictionary.
+  @param    ini     Dictionary to modify.
+  @param    entry   Entry to modify (entry name)
+  @param    val     New value to associate to the entry.
+  @return   int 0 if Ok, -1 otherwise.
+
+  If the given entry can be found in the dictionary, it is modified to
+  contain the provided value. If it cannot be found, -1 is returned.
+  It is Ok to set val to NULL.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_setstring(dictionary * ini, char * entry, char * val);
+
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Delete an entry in a dictionary
+  @param    ini     Dictionary to modify
+  @param    entry   Entry to delete (entry name)
+  @return   void
+
+  If the given entry can be found, it is deleted from the dictionary.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_unset(dictionary * ini, char * entry);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Finds out if a given entry exists in a dictionary
+  @param    ini     Dictionary to search
+  @param    entry   Name of the entry to look for
+  @return   integer 1 if entry exists, 0 otherwise
+
+  Finds out if a given entry exists in the dictionary. Since sections
+  are stored as keys with NULL associated values, this is the only way
+  of querying for the presence of sections in a dictionary.
+ */
+/*--------------------------------------------------------------------------*/
+int iniparser_find_entry(dictionary * ini, char * entry) ;
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Parse an ini file and return an allocated dictionary object
+  @param    ininame Name of the ini file to read.
+  @return   Pointer to newly allocated dictionary
+
+  This is the parser for ini files. This function is called, providing
+  the name of the file to be read. It returns a dictionary object that
+  should not be accessed directly, but through accessor functions
+  instead.
+
+  The returned dictionary must be freed using iniparser_freedict().
+ */
+/*--------------------------------------------------------------------------*/
+dictionary * iniparser_load(const char * ininame);
+
+/*-------------------------------------------------------------------------*/
+/**
+  @brief    Free all memory associated to an ini dictionary
+  @param    d Dictionary to free
+  @return   void
+
+  Free all memory associated to an ini dictionary.
+  It is mandatory to call this function before the dictionary object
+  gets out of the current context.
+ */
+/*--------------------------------------------------------------------------*/
+void iniparser_freedict(dictionary * d);
+
+#endif
diff --git a/plugins/experimental/mysql_remap/mysql_remap.cc b/plugins/experimental/mysql_remap/mysql_remap.cc
new file mode 100644
index 00000000..3dcc3fa7
--- /dev/null
+++ b/plugins/experimental/mysql_remap/mysql_remap.cc
@@ -0,0 +1,249 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "mysql/mysql.h"
+#include "lib/iniparser.h"
+#include "default.h"
+
+MYSQL mysql;
+
+typedef struct {
+  char * query;
+} my_data;
+
+bool do_mysql_remap(TSCont contp,TSHttpTxn txnp) {
+  TSMBuffer reqp;
+  TSMLoc hdr_loc, url_loc, field_loc;
+  bool ret_val = false;
+
+  const char * request_host;
+  int request_host_length = 0;
+  const char * request_scheme;
+  int request_scheme_length = 0;
+  int request_port = 80;
+  char * query;
+
+  MYSQL_ROW row;
+  MYSQL_RES *res;
+
+  my_data * data = (my_data*) TSContDataGet(contp);
+  query = data->query;
+
+  if (TSHttpTxnClientReqGet(txnp, &reqp, &hdr_loc) != TS_SUCCESS) {
+    TSDebug(PLUGIN_NAME,"could not get request data");
+    return false;
+  }
+
+  TSHttpHdrUrlGet(reqp, hdr_loc,&url_loc);
+
+  if (!url_loc) {
+    TSDebug(PLUGIN_NAME,"couldn't retrieve request url");
+    goto release_hdr;
+  }
+
+  field_loc = TSMimeHdrFieldFind(reqp, hdr_loc, TS_MIME_FIELD_HOST, TS_MIME_LEN_HOST);
+
+  if (!field_loc) {
+      TSDebug(PLUGIN_NAME,"couldn't retrieve request HOST header");
+      goto release_url;
+  }
+
+  request_host = TSMimeHdrFieldValueStringGet (reqp, hdr_loc, field_loc, -1, &request_host_length);
+  if (!request_host_length) {
+    TSDebug(PLUGIN_NAME,"couldn't find request HOST header");
+    goto release_field;
+  }
+
+  request_scheme = TSUrlSchemeGet(reqp,url_loc,&request_scheme_length);
+  request_port   = TSUrlPortGet(reqp,url_loc);
+
+  TSDebug(PLUGIN_NAME,"      +++++MYSQL REMAP+++++      ");
+
+  TSDebug(PLUGIN_NAME,"\nINCOMING REQUEST ->\n ::: from_scheme_desc: %.*s\n ::: from_hostname: %.*s\n ::: from_port: %d",\
+    request_scheme_length,\
+    request_scheme,\
+    request_host_length,\
+    request_host,\
+    request_port
+  );
+
+  snprintf(query,QSIZE," \
+    SELECT \
+        t_scheme.scheme_desc, \
+        t_host.hostname, \
+        to_port \
+      FROM map \
+        INNER JOIN scheme as t_scheme ON (map.to_scheme_id = t_scheme.id) \
+        INNER JOIN scheme as f_scheme ON (map.from_scheme_id = f_scheme.id) \
+        INNER JOIN hostname as t_host ON (map.to_hostname_id = t_host.id) \
+        INNER JOIN hostname as f_host ON (map.from_hostname_id = f_host.id) \
+      WHERE \
+        is_enabled=1 \
+        AND f_host.hostname = '%.*s' \
+        AND f_scheme.id = %d \
+        AND from_port = %d \
+      LIMIT 1", \
+    request_host_length, \
+    request_host, \
+    (strcmp(request_scheme,"https") == 0) ? 2:1, \
+    request_port \
+  );
+
+  mysql_real_query(&mysql,query,(unsigned int)strlen(query));
+  res = mysql_use_result(&mysql);
+
+  if (!res) goto not_found; //TODO: define a fallback
+
+  do {
+    row = mysql_fetch_row(res);
+    if (!row) goto not_found;
+    TSDebug(PLUGIN_NAME,"\nOUTGOING REQUEST ->\n ::: to_scheme_desc: %s\n ::: to_hostname: %s\n ::: to_port: %s",row[0],row[1],row[2]);
+    TSMimeHdrFieldValueStringSet(reqp, hdr_loc, field_loc, 0,row[1],-1);
+    TSUrlHostSet(reqp,url_loc,row[1],-1);
+    TSUrlSchemeSet(reqp,url_loc,row[0],-1);
+    TSUrlPortSet(reqp,url_loc,atoi(row[2]));
+  } while(0);
+
+  ret_val = true;
+
+not_found:
+  if (!ret_val) {
+    //lets build up a nice 404 message for someone
+    TSHttpHdrStatusSet(reqp,hdr_loc,TS_HTTP_STATUS_NOT_FOUND);
+    TSHttpTxnSetHttpRetStatus(txnp,TS_HTTP_STATUS_NOT_FOUND);
+  }
+  if (res)
+    mysql_free_result(res);
+#if (TS_VERSION_NUMBER < 2001005)
+  if (request_host)
+    TSHandleStringRelease(reqp, hdr_loc, request_host);
+  if (request_scheme)
+    TSHandleStringRelease(reqp, hdr_loc, request_scheme);
+#endif
+release_field:
+  if (field_loc)
+    TSHandleMLocRelease(reqp, hdr_loc, field_loc);
+release_url:
+  if (url_loc)
+    TSHandleMLocRelease(reqp, hdr_loc, url_loc);
+release_hdr:
+  if (hdr_loc)
+    TSHandleMLocRelease(reqp, TS_NULL_MLOC, hdr_loc);
+
+  return ret_val;
+}
+
+static int
+mysql_remap (TSCont contp, TSEvent event, void *edata) {
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  TSEvent reenable = TS_EVENT_HTTP_CONTINUE;
+
+  switch(event) {
+    case TS_EVENT_HTTP_READ_REQUEST_HDR:
+      TSDebug(PLUGIN_NAME,"Reading Request");
+      TSSkipRemappingSet(txnp,1);
+      if (!do_mysql_remap(contp,txnp)) {
+        reenable = TS_EVENT_HTTP_ERROR;
+      }
+      break;
+    default:
+      break;
+  }
+
+  TSHttpTxnReenable(txnp, reenable);
+  return 1;
+}
+
+void
+TSPluginInit(int argc, const char *argv[]) {
+  dictionary * ini;
+  const char * host;
+  int port;
+  const char * username;
+  const char * password;
+  const char * db;
+
+  my_data * data = (my_data*) malloc(1*sizeof(my_data));
+
+  TSPluginRegistrationInfo info;
+  my_bool reconnect = 1;
+
+  info.plugin_name   = const_cast<char*>(PLUGIN_NAME);
+  info.vendor_name   = const_cast<char*>("Apache Software Foundation");
+  info.support_email = const_cast<char*>("dev@trafficserver.apache.org");
+
+  if (TSPluginRegister(TS_SDK_VERSION_2_0 , &info) != TS_SUCCESS) {
+    TSError("mysql_remap: plugin registration failed.\n");
+  }
+
+  if (argc != 2) {
+    TSError( "usage: %s /path/to/sample.ini\n", argv[0] );
+    return;
+  }
+
+  ini = iniparser_load(argv[1]);
+  if (!ini) {
+    TSError("Error with ini file (1)");
+    TSDebug(PLUGIN_NAME,"Error parsing ini file(1)");
+    return;
+  }
+
+  host     = iniparser_getstring(ini, "mysql_remap:mysql_host", (char*)"localhost");
+  port     =    iniparser_getint(ini,"mysql_remap:mysql_port",3306);
+  username = iniparser_getstring(ini, "mysql_remap:mysql_username", NULL);
+  password = iniparser_getstring(ini, "mysql_remap:mysql_password", NULL);
+  db       = iniparser_getstring(ini, "mysql_remap:mysql_database", (char*)"mysql_remap");
+
+  if (mysql_library_init(0, NULL, NULL)) {
+    TSError("Error initializing mysql client library");
+    TSDebug(PLUGIN_NAME,"Error initializing mysql client library");
+    return;
+  }
+
+  if (!mysql_init(&mysql)) {
+    TSError("Could not initialize MySQL");
+    TSDebug(PLUGIN_NAME,"Could not initialize MySQL");
+    return;
+  }
+
+  mysql_options(&mysql, MYSQL_OPT_RECONNECT, &reconnect);
+
+  if (!mysql_real_connect(&mysql,host,username,password,db,port,NULL,0)) {
+    TSError("Could not connect to mysql");
+    TSDebug(PLUGIN_NAME,"Could not connect to mysql: %s",mysql_error(&mysql));
+    return;
+  }
+
+  data->query = (char*)TSmalloc(QSIZE * sizeof(char)); //TODO: malloc smarter sizes
+
+  TSDebug(PLUGIN_NAME, "h: %s; u: %s; p: %s; p:%d; d:%s",host,username,password,port,db);
+  TSCont cont = TSContCreate(mysql_remap, TSMutexCreate());
+
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
+
+  TSContDataSet (cont, (void *)data);
+
+  TSDebug(PLUGIN_NAME, "plugin is successfully initialized [plugin mode]");
+  iniparser_freedict(ini);
+  return;
+}
diff --git a/plugins/experimental/mysql_remap/sample.ini b/plugins/experimental/mysql_remap/sample.ini
new file mode 100644
index 00000000..e7f7a607
--- /dev/null
+++ b/plugins/experimental/mysql_remap/sample.ini
@@ -0,0 +1,24 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+[mysql_remap]
+mysql_host     = localhost   #default
+mysql_port     = 3306        #default
+mysql_username = root
+mysql_password = 
+mysql_database = mysql_remap #default
diff --git a/plugins/experimental/mysql_remap/schema/import.sql b/plugins/experimental/mysql_remap/schema/import.sql
new file mode 100644
index 00000000..cbe331b7
--- /dev/null
+++ b/plugins/experimental/mysql_remap/schema/import.sql
@@ -0,0 +1,134 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--      http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+-- MySQL dump 10.13  Distrib 5.1.48, for apple-darwin10.4.0 (i386)
+--
+-- Host: localhost    Database: mysql_remap
+-- ------------------------------------------------------
+-- Server version	5.1.48-log
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
+/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
+/*!40101 SET NAMES utf8 */;
+/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
+/*!40103 SET TIME_ZONE='+00:00' */;
+/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
+/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
+/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
+
+--
+-- Table structure for table `hostname`
+--
+
+DROP TABLE IF EXISTS `hostname`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `hostname` (
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `hostname` varchar(255) NOT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `hostname` (`hostname`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `hostname`
+--
+
+LOCK TABLES `hostname` WRITE;
+/*!40000 ALTER TABLE `hostname` DISABLE KEYS */;
+INSERT INTO `hostname` VALUES (1,'www.ericbalsa.com'),(2,'www.google.com');
+/*!40000 ALTER TABLE `hostname` ENABLE KEYS */;
+UNLOCK TABLES;
+
+--
+-- Table structure for table `map`
+--
+
+DROP TABLE IF EXISTS `map`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `map` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `from_scheme_id` int(10) unsigned NOT NULL DEFAULT '1',
+  `from_hostname_id` int(10) unsigned NOT NULL,
+  `from_port` int(5) unsigned NOT NULL,
+  `to_scheme_id` int(10) unsigned NOT NULL DEFAULT '1',
+  `to_hostname_id` int(10) unsigned NOT NULL,
+  `to_port` int(5) unsigned NOT NULL DEFAULT '80',
+  `is_enabled` tinyint(1) unsigned NOT NULL DEFAULT '1',
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `from_unique` (`from_scheme_id`,`from_hostname_id`,`from_port`),
+  UNIQUE KEY `to_unique` (`to_scheme_id`,`to_hostname_id`,`to_port`),
+  UNIQUE KEY `unique_across_everything` (`from_scheme_id`,`from_hostname_id`,`from_port`,`to_scheme_id`,`to_hostname_id`,`to_port`),
+  KEY `to_hostname_id` (`to_hostname_id`),
+  KEY `from_hostname_id` (`from_hostname_id`),
+  CONSTRAINT `map_ibfk_1` FOREIGN KEY (`from_scheme_id`) REFERENCES `scheme` (`id`) ON UPDATE CASCADE,
+  CONSTRAINT `map_ibfk_3` FOREIGN KEY (`to_scheme_id`) REFERENCES `scheme` (`id`) ON UPDATE CASCADE,
+  CONSTRAINT `map_ibfk_4` FOREIGN KEY (`to_hostname_id`) REFERENCES `hostname` (`id`) ON UPDATE CASCADE,
+  CONSTRAINT `map_ibfk_5` FOREIGN KEY (`from_hostname_id`) REFERENCES `hostname` (`id`) ON UPDATE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `map`
+--
+
+LOCK TABLES `map` WRITE;
+/*!40000 ALTER TABLE `map` DISABLE KEYS */;
+INSERT INTO `map` VALUES (1,1,2,80,1,1,80,1);
+/*!40000 ALTER TABLE `map` ENABLE KEYS */;
+UNLOCK TABLES;
+
+--
+-- Table structure for table `scheme`
+--
+
+DROP TABLE IF EXISTS `scheme`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `scheme` (
+  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
+  `scheme_desc` varchar(5) NOT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `desc` (`scheme_desc`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+--
+-- Dumping data for table `scheme`
+--
+
+LOCK TABLES `scheme` WRITE;
+/*!40000 ALTER TABLE `scheme` DISABLE KEYS */;
+INSERT INTO `scheme` VALUES (1,'http'),(2,'https');
+/*!40000 ALTER TABLE `scheme` ENABLE KEYS */;
+UNLOCK TABLES;
+/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
+
+/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
+/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
+/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
+/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
+/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
+
+-- Dump completed on 2010-11-15 21:08:43
diff --git a/plugins/experimental/regex_revalidate/Makefile.am b/plugins/experimental/regex_revalidate/Makefile.am
new file mode 100644
index 00000000..0fa95d20
--- /dev/null
+++ b/plugins/experimental/regex_revalidate/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = regex_revalidate.la
+regex_revalidate_la_SOURCES = regex_revalidate.c
+regex_revalidate_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/regex_revalidate/Makefile.in b/plugins/experimental/regex_revalidate/Makefile.in
new file mode 100644
index 00000000..229c34c9
--- /dev/null
+++ b/plugins/experimental/regex_revalidate/Makefile.in
@@ -0,0 +1,935 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = plugins/experimental/regex_revalidate
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
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+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
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+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+regex_revalidate.la: $(regex_revalidate_la_OBJECTS) $(regex_revalidate_la_DEPENDENCIES) $(EXTRA_regex_revalidate_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(regex_revalidate_la_LINK) -rpath $(pkglibdir) $(regex_revalidate_la_OBJECTS) $(regex_revalidate_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/regex_revalidate.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
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+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
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+
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+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
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+pdf-am:
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+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/regex_revalidate/regex_revalidate.c b/plugins/experimental/regex_revalidate/regex_revalidate.c
new file mode 100644
index 00000000..eb41f4ca
--- /dev/null
+++ b/plugins/experimental/regex_revalidate/regex_revalidate.c
@@ -0,0 +1,594 @@
+/** @file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_defs.h"
+#include "ink_platform.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+#include <stdbool.h>
+#include <getopt.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <ts/ts.h>
+
+#ifdef HAVE_PCRE_PCRE_H
+#  include <pcre/pcre.h>
+#else
+#  include <pcre.h>
+#endif
+
+#define LOG_PREFIX        "regex_revalidate"
+#define CONFIG_TMOUT      60000
+#define FREE_TMOUT        300000
+#define OVECTOR_SIZE      30
+#define LOG_ROLL_INTERVAL 86400
+#define LOG_ROLL_OFFSET   0
+
+static inline void*
+ts_malloc(size_t s)
+{
+    return TSmalloc(s);
+}
+
+static inline void
+ts_free(void *s)
+{
+    return TSfree(s);
+}
+
+typedef struct invalidate_t
+{
+    const char *regex_text;
+    pcre *regex;
+    pcre_extra *regex_extra;
+    time_t epoch;
+    time_t expiry;
+    struct invalidate_t *next;
+} invalidate_t;
+
+typedef struct
+{
+    invalidate_t * volatile invalidate_list;
+    char *config_file;
+    volatile time_t last_load;
+    TSTextLogObject log;
+} plugin_state_t;
+
+static invalidate_t *
+init_invalidate_t(invalidate_t *i)
+{
+    i->regex_text = NULL;
+    i->regex = NULL;
+    i->regex_extra = NULL;
+    i->epoch = 0;
+    i->expiry = 0;
+    i->next = NULL;
+    return i;
+}
+
+static void
+free_invalidate_t(invalidate_t *i)
+{
+    if (i->regex_extra)
+#ifndef PCRE_STUDY_JIT_COMPILE
+        pcre_free(i->regex_extra);
+#else
+        pcre_free_study(i->regex_extra);
+#endif
+    if (i->regex)
+        pcre_free(i->regex);
+    if (i->regex_text)
+        pcre_free_substring(i->regex_text);
+    TSfree(i);
+}
+
+static void
+free_invalidate_t_list(invalidate_t *i)
+{
+    if (i->next)
+        free_invalidate_t_list(i->next);
+    free_invalidate_t(i);
+}
+
+static plugin_state_t *
+init_plugin_state_t(plugin_state_t *pstate)
+{
+    pstate->invalidate_list = NULL;
+    pstate->config_file = NULL;
+    pstate->last_load = 0;
+    pstate->log = NULL;
+    return pstate;
+}
+
+static void
+free_plugin_state_t(plugin_state_t *pstate)
+{
+    if (pstate->invalidate_list)
+        free_invalidate_t_list(pstate->invalidate_list);
+    if (pstate->config_file)
+        TSfree(pstate->config_file);
+    if (pstate->log)
+        TSTextLogObjectDestroy(pstate->log);
+    TSfree(pstate);
+}
+
+static invalidate_t *
+copy_invalidate_t(invalidate_t *i)
+{
+    invalidate_t *iptr;
+    const char *errptr;
+    int erroffset;
+
+    iptr = (invalidate_t *) TSmalloc(sizeof(invalidate_t));
+    iptr->regex_text = TSstrdup(i->regex_text);
+    iptr->regex = pcre_compile(iptr->regex_text, 0, &errptr, &erroffset, NULL); // There is no pcre_copy :-(
+    iptr->regex_extra = pcre_study(iptr->regex, 0, &errptr);                    // Assuming no errors since this worked before :-/
+    iptr->epoch = i->epoch;
+    iptr->expiry = i->expiry;
+    iptr->next = NULL;
+    return iptr;
+}
+
+static invalidate_t *
+copy_config(invalidate_t *old_list)
+{
+    invalidate_t *new_list = NULL;
+    invalidate_t *iptr_old, *iptr_new;
+
+    if (old_list)
+    {
+        new_list = copy_invalidate_t(old_list);
+        iptr_old = old_list->next;
+        iptr_new = new_list;
+        while (iptr_old)
+        {
+            iptr_new->next = copy_invalidate_t(iptr_old);
+            iptr_new = iptr_new->next;
+            iptr_old = iptr_old->next;
+        }
+    }
+
+    return new_list;
+}
+
+static bool
+prune_config(invalidate_t **i)
+{
+    invalidate_t *iptr, *ilast;
+    time_t now;
+    bool pruned = false;
+
+    now = time(NULL);
+
+    if (*i)
+    {
+        iptr = *i;
+        ilast = NULL;
+        while (iptr)
+        {
+            if (difftime(iptr->expiry, now) < 0)
+            {
+                TSDebug(LOG_PREFIX, "Removing %s expiry: %d now: %d", iptr->regex_text, (int) iptr->expiry, (int) now);
+                if (ilast)
+                {
+                    ilast->next = iptr->next;
+                    free_invalidate_t(iptr);
+                    iptr = ilast->next;
+                }
+                else
+                {
+                    *i = iptr->next;
+                    free_invalidate_t(iptr);
+                    iptr = *i;
+                }
+                pruned = true;
+            }
+            else
+            {
+                ilast = iptr;
+                iptr = iptr->next;
+            }
+        }
+    }
+    return pruned;
+}
+
+static bool
+load_config(plugin_state_t *pstate, invalidate_t **ilist)
+{
+    FILE *fs;
+    struct stat s;
+    size_t path_len;
+    char *path;
+    char line[LINE_MAX];
+    time_t now;
+    pcre *config_re;
+    const char *errptr;
+    int erroffset, ovector[OVECTOR_SIZE], rc;
+    int ln = 0;
+    invalidate_t *iptr, *i;
+
+    if (pstate->config_file[0] != '/')
+    {
+        path_len = strlen(TSConfigDirGet()) + strlen(pstate->config_file) + 2;
+        path = alloca(path_len);
+        snprintf(path, path_len, "%s/%s", TSConfigDirGet(), pstate->config_file);
+    }
+    else
+        path = pstate->config_file;
+    if (stat(path, &s) < 0)
+    {
+        TSDebug(LOG_PREFIX, "Could not stat %s", path);
+        return false;
+    }
+    if (s.st_mtime > pstate->last_load)
+    {
+        now = time(NULL);
+        if (!(fs = fopen(path, "r")))
+        {
+            TSDebug(LOG_PREFIX, "Could not open %s for reading", path);
+            return false;
+        }
+        config_re = pcre_compile("^([^#].+?)\\s+(\\d+)\\s*$", 0, &errptr, &erroffset, NULL);
+        while (fgets(line, LINE_MAX, fs) != NULL)
+        {
+            ln++;
+            TSDebug(LOG_PREFIX, "Processing: %d %s", ln, line);
+            rc = pcre_exec(config_re, NULL, line, strlen(line), 0, 0, ovector, OVECTOR_SIZE);
+            if (rc == 3)
+            {
+                i = (invalidate_t *) TSmalloc(sizeof(invalidate_t));
+                init_invalidate_t(i);
+                pcre_get_substring(line, ovector, rc, 1, &i->regex_text);
+                i->epoch = now;
+                i->expiry = atoi(line + ovector[4]);
+                i->regex = pcre_compile(i->regex_text, 0, &errptr, &erroffset, NULL);
+                if (i->expiry <= i->epoch)
+                {
+                    TSDebug(LOG_PREFIX, "Rule is already expired!");
+                    free_invalidate_t(i);
+                }
+                else if (i->regex == NULL)
+                {
+                    TSDebug(LOG_PREFIX, "%s did not compile", i->regex_text);
+                    free_invalidate_t(i);
+                }
+                else
+                {
+                    i->regex_extra = pcre_study(i->regex, 0, &errptr);
+                    if (!*ilist)
+                    {
+                        *ilist = i;
+                        TSDebug(LOG_PREFIX, "Created new list and Loaded %s %d %d", i->regex_text, (int) i->epoch, (int) i->expiry);
+                    }
+                    else
+                    {
+                        iptr = *ilist;
+                        while(1)
+                        {
+                            if (strcmp(i->regex_text, iptr->regex_text) == 0)
+                            {
+                                if (iptr->expiry != i->expiry)
+                                {
+                                    TSDebug(LOG_PREFIX, "Updating duplicate %s", i->regex_text);
+                                    iptr->epoch = i->epoch;
+                                    iptr->expiry = i->expiry;
+                                }
+                                free_invalidate_t(i);
+                                i = NULL;
+                                break;
+                            }
+                            else if (!iptr->next)
+                                break;
+                            else
+                                iptr = iptr->next;
+                        }
+                        if (i)
+                        {
+                            iptr->next = i;
+                            TSDebug(LOG_PREFIX, "Loaded %s %d %d", i->regex_text, (int) i->epoch, (int) i->expiry);
+                        }
+                    }
+                }
+            }
+            else
+                TSDebug(LOG_PREFIX, "Skipping line %d", ln);
+        }
+        pcre_free(config_re);
+        fclose(fs);
+        pstate->last_load = s.st_mtime;
+        return true;
+    }
+    else
+        TSDebug(LOG_PREFIX, "File mod time is not newer: %d >= %d", (int) pstate->last_load, (int) s.st_mtime);
+    return false;
+}
+
+static void
+list_config(plugin_state_t *pstate, invalidate_t *i)
+{
+    invalidate_t *iptr;
+
+    TSDebug(LOG_PREFIX, "Current config:");
+    if (pstate->log)
+        TSTextLogObjectWrite(pstate->log, "Current config:");
+    if (i)
+    {
+        iptr = i;
+        while (iptr)
+        {
+            TSDebug(LOG_PREFIX, "%s epoch: %d expiry: %d", iptr->regex_text, (int) iptr->epoch, (int) iptr->expiry);
+            if (pstate->log)
+                TSTextLogObjectWrite(pstate->log, "%s epoch: %d expiry: %d", iptr->regex_text, (int) iptr->epoch, (int) iptr->expiry);
+            iptr = iptr->next;
+        }
+    }
+    else
+    {
+        TSDebug(LOG_PREFIX, "EMPTY");
+        if (pstate->log)
+            TSTextLogObjectWrite(pstate->log, "EMPTY");
+    }
+}
+
+static int
+free_handler(TSCont cont, TSEvent event ATS_UNUSED, void *edata ATS_UNUSED)
+{
+    invalidate_t *iptr;
+
+    TSDebug(LOG_PREFIX, "Freeing old config");
+    iptr = (invalidate_t *) TSContDataGet(cont);
+    free_invalidate_t_list(iptr);
+    TSContDestroy(cont);
+    return 0;
+}
+
+static int
+config_handler(TSCont cont, TSEvent event ATS_UNUSED, void *edata ATS_UNUSED)
+{
+    plugin_state_t *pstate;
+    invalidate_t *i, *iptr;
+    TSCont free_cont;
+    bool updated;
+
+    TSDebug(LOG_PREFIX, "In config Handler");
+    pstate = (plugin_state_t *) TSContDataGet(cont);
+    i = copy_config(pstate->invalidate_list);
+
+    updated = prune_config(&i);
+    updated = load_config(pstate, &i) || updated;
+
+    if (updated)
+    {
+        list_config(pstate, i);
+        iptr = __sync_val_compare_and_swap(&(pstate->invalidate_list), pstate->invalidate_list, i);
+
+        if (iptr)
+        {
+            free_cont = TSContCreate(free_handler, NULL);
+            TSContDataSet(free_cont, (void *) iptr);
+            TSContSchedule(free_cont, FREE_TMOUT, TS_THREAD_POOL_TASK);
+        }
+    }
+    else
+    {
+        TSDebug(LOG_PREFIX, "No Changes");
+        if (i)
+            free_invalidate_t_list(i);
+    }
+
+    TSContSchedule(cont, CONFIG_TMOUT, TS_THREAD_POOL_TASK);
+    return 0;
+}
+
+static time_t
+get_date_from_cached_hdr(TSHttpTxn txn)
+{
+    TSMBuffer buf;
+    TSMLoc hdr_loc, date_loc;
+    time_t date = 0;
+
+    if (TSHttpTxnCachedRespGet(txn, &buf, &hdr_loc) == TS_SUCCESS)
+    {
+        date_loc = TSMimeHdrFieldFind(buf, hdr_loc, TS_MIME_FIELD_DATE, TS_MIME_LEN_DATE);
+        if (date_loc != TS_NULL_MLOC)
+        {
+            date = TSMimeHdrFieldValueDateGet(buf, hdr_loc, date_loc);
+             TSHandleMLocRelease(buf, hdr_loc, date_loc);
+        }
+        TSHandleMLocRelease(buf, TS_NULL_MLOC, hdr_loc);
+    }
+
+    return date;
+}
+
+static int
+main_handler(TSCont cont, TSEvent event, void *edata)
+{
+    TSHttpTxn txn = (TSHttpTxn) edata;
+    int status;
+    invalidate_t *iptr;
+    plugin_state_t *pstate;
+
+    time_t date = 0, now = 0;
+    char *url = NULL;
+    int url_len = 0;
+
+    switch (event)
+    {
+        case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+            if (TSHttpTxnCacheLookupStatusGet(txn, &status) == TS_SUCCESS)
+            {
+                if (status == TS_CACHE_LOOKUP_HIT_FRESH)
+                {
+                    pstate = (plugin_state_t *) TSContDataGet(cont);
+                    iptr = pstate->invalidate_list;
+                    while (iptr)
+                    {
+                        if (!date)
+                        {
+                            date = get_date_from_cached_hdr(txn);
+                            now = time(NULL);
+                        }
+                        if ((difftime(iptr->epoch, date) >= 0) && (difftime(iptr->expiry, now) >= 0))
+                        {
+                            if (!url)
+                                url = TSHttpTxnEffectiveUrlStringGet(txn, &url_len);
+                            if (pcre_exec(iptr->regex, iptr->regex_extra, url, url_len, 0, 0, NULL, 0) >= 0)
+                            {
+                                TSHttpTxnCacheLookupStatusSet(txn, TS_CACHE_LOOKUP_HIT_STALE);
+                                iptr = NULL;
+                                TSDebug(LOG_PREFIX, "Forced revalidate - %.*s", url_len, url);
+                            }
+                        }
+                        if (iptr)
+                            iptr = iptr->next;
+                    }
+                    if (url)
+                        TSfree(url);
+                }
+            }
+            break;
+        default:
+            break;
+    }
+
+    TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+}
+
+static bool
+check_ts_version()
+{
+    const char *ts_version = TSTrafficServerVersionGet();
+
+    if (ts_version)
+    {
+        int major_ts_version = 0;
+        int minor_ts_version = 0;
+        int micro_ts_version = 0;
+
+        if (sscanf(ts_version, "%d.%d.%d", &major_ts_version, &minor_ts_version, &micro_ts_version) != 3)
+        {
+            return false;
+        }
+
+        if ((TS_VERSION_MAJOR == major_ts_version) && (TS_VERSION_MINOR == minor_ts_version) && (TS_VERSION_MICRO == micro_ts_version))
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void
+TSPluginInit (int argc, const char *argv[])
+{
+    TSPluginRegistrationInfo info;
+    TSCont main_cont, config_cont;
+    plugin_state_t *pstate;
+    invalidate_t *iptr = NULL;
+
+    TSDebug(LOG_PREFIX, "Starting plugin init.");
+
+    pstate = (plugin_state_t *) TSmalloc(sizeof(plugin_state_t));
+    init_plugin_state_t(pstate);
+
+    int c;
+    optind = 1;
+    static const struct option longopts[] = {
+            { "config", required_argument, NULL, 'c' },
+            { "log", required_argument, NULL, 'l' },
+            { NULL, 0, NULL, 0 }
+        };
+
+    while ((c = getopt_long(argc, (char * const*) argv, "c:l:", longopts, NULL)) != -1)
+    {
+        switch (c)
+        {
+            case 'c':
+                pstate->config_file = TSstrdup(optarg);
+                break;
+            case 'l':
+                TSTextLogObjectCreate(optarg, TS_LOG_MODE_ADD_TIMESTAMP, &pstate->log);
+                TSTextLogObjectRollingEnabledSet(pstate->log, 1);
+                TSTextLogObjectRollingIntervalSecSet(pstate->log, LOG_ROLL_INTERVAL);
+                TSTextLogObjectRollingOffsetHrSet(pstate->log, LOG_ROLL_OFFSET);
+                break;
+            default:
+                break;
+        }
+    }
+
+    if (!pstate->config_file)
+    {
+        TSError("Plugin requires a --config option along with a config file name.");
+        free_plugin_state_t(pstate);
+        return;
+    }
+
+    if (!load_config(pstate, &iptr))
+        TSDebug(LOG_PREFIX, "Problem loading config from file %s", pstate->config_file);
+    else
+    {
+        pstate->invalidate_list = iptr;
+        list_config(pstate, iptr);
+    }
+
+    info.plugin_name = LOG_PREFIX;
+    info.vendor_name = "Comcast";
+    info.support_email = "sorber@apache.org";
+
+    if (TSPluginRegister(TS_SDK_VERSION_3_0 , &info) != TS_SUCCESS)
+    {
+        TSError("Plugin registration failed.");
+        free_plugin_state_t(pstate);
+        return;
+    }
+    else
+        TSDebug(LOG_PREFIX, "Plugin registration succeeded.");
+
+    if (!check_ts_version())
+    {
+        TSError("Plugin requires Traffic Server %d.%d.%d", TS_VERSION_MAJOR, TS_VERSION_MINOR, TS_VERSION_MICRO);
+        free_plugin_state_t(pstate);
+        return;
+    }
+
+    pcre_malloc = &ts_malloc;
+    pcre_free = &ts_free;
+
+    main_cont = TSContCreate(main_handler, NULL);
+    TSContDataSet(main_cont, (void *) pstate);
+    TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, main_cont);
+
+    config_cont = TSContCreate(config_handler, TSMutexCreate());
+    TSContDataSet(config_cont, (void *) pstate);
+    TSContSchedule(config_cont, CONFIG_TMOUT, TS_THREAD_POOL_TASK);
+
+    TSDebug(LOG_PREFIX, "Plugin Init Complete.");
+}
diff --git a/plugins/experimental/remap_stats/Makefile.am b/plugins/experimental/remap_stats/Makefile.am
new file mode 100644
index 00000000..a817bb83
--- /dev/null
+++ b/plugins/experimental/remap_stats/Makefile.am
@@ -0,0 +1,25 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+if BUILD_REMAP_STATS_PLUGIN
+
+pkglib_LTLIBRARIES = remap_stats.la
+remap_stats_la_SOURCES = remap_stats.c
+remap_stats_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+endif
diff --git a/plugins/experimental/remap_stats/Makefile.in b/plugins/experimental/remap_stats/Makefile.in
new file mode 100644
index 00000000..0e3ca6aa
--- /dev/null
+++ b/plugins/experimental/remap_stats/Makefile.in
@@ -0,0 +1,939 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = plugins/experimental/remap_stats
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+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+remap_stats_la_LIBADD =
+am__remap_stats_la_SOURCES_DIST = remap_stats.c
+@BUILD_REMAP_STATS_PLUGIN_TRUE@am_remap_stats_la_OBJECTS =  \
+@BUILD_REMAP_STATS_PLUGIN_TRUE@	remap_stats.lo
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+am__v_lt_0 = --silent
+am__v_lt_1 = 
+remap_stats_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+	$(AM_CFLAGS) $(CFLAGS) $(remap_stats_la_LDFLAGS) $(LDFLAGS) -o \
+	$@
+@BUILD_REMAP_STATS_PLUGIN_TRUE@am_remap_stats_la_rpath = -rpath \
+@BUILD_REMAP_STATS_PLUGIN_TRUE@	$(pkglibdir)
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+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
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+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
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+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(remap_stats_la_SOURCES)
+DIST_SOURCES = $(am__remap_stats_la_SOURCES_DIST)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
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+  { items[$$0] = 1; nonempty = 1; } \
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+  list='$(am__tagged_files)'; \
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+ETAGS = etags
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+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
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+PYTHON_VERSION = @PYTHON_VERSION@
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+SHARED_CFLAGS = @SHARED_CFLAGS@
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+SHARED_LDFLAGS = @SHARED_LDFLAGS@
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+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
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+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
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+YACC = @YACC@
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+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
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+datarootdir = @datarootdir@
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+has_profiler = @has_profiler@
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+use_reclaimable_freelist = @use_reclaimable_freelist@
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+use_tls_eckey = @use_tls_eckey@
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+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+@BUILD_REMAP_STATS_PLUGIN_TRUE@pkglib_LTLIBRARIES = remap_stats.la
+@BUILD_REMAP_STATS_PLUGIN_TRUE@remap_stats_la_SOURCES = remap_stats.c
+@BUILD_REMAP_STATS_PLUGIN_TRUE@remap_stats_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/remap_stats/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/remap_stats/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+remap_stats.la: $(remap_stats_la_OBJECTS) $(remap_stats_la_DEPENDENCIES) $(EXTRA_remap_stats_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(remap_stats_la_LINK) $(am_remap_stats_la_rpath) $(remap_stats_la_OBJECTS) $(remap_stats_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/remap_stats.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/remap_stats/remap_stats.c b/plugins/experimental/remap_stats/remap_stats.c
new file mode 100644
index 00000000..04b17238
--- /dev/null
+++ b/plugins/experimental/remap_stats/remap_stats.c
@@ -0,0 +1,305 @@
+/** @file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "ink_defs.h"
+
+#include "ts/ts.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <getopt.h>
+#include <search.h>
+
+#define PLUGIN_NAME "remap_stats"
+#define DEBUG_TAG PLUGIN_NAME
+
+#define MAX_STAT_LENGTH (1<<8)
+
+typedef struct
+{
+    bool post_remap_host;
+    int txn_slot;
+    TSStatPersistence persist_type;
+    TSMutex stat_creation_mutex;
+} config_t;
+
+static void
+stat_add(char *name, TSMgmtInt amount, TSStatPersistence persist_type, TSMutex create_mutex)
+{
+    intptr_t stat_id = -1;
+    ENTRY search, *result = NULL;
+    static __thread struct hsearch_data stat_cache;
+    static __thread bool hash_init = false;
+
+    if (unlikely(!hash_init))
+    {
+        hcreate_r(TS_MAX_API_STATS << 1, &stat_cache);
+        hash_init = true;
+        TSDebug(DEBUG_TAG, "stat cache hash init");
+    }
+
+    search.key = name;
+    hsearch_r(search, FIND, &result, &stat_cache);
+
+    if (unlikely(result == NULL))
+    {
+        // This is an unlikely path because we most likely have the stat cached
+        // so this mutex won't be much overhead and it fixes a race condition
+        // in the RecCore. Hopefully this can be removed in the future.
+        TSMutexLock(create_mutex);
+        if (TS_ERROR == TSStatFindName((const char *) name, (int *)&stat_id))
+        {
+            stat_id = TSStatCreate((const char *) name, TS_RECORDDATATYPE_INT, persist_type, TS_STAT_SYNC_SUM);
+            if (stat_id == TS_ERROR)
+                TSDebug(DEBUG_TAG, "Error creating stat_name: %s", name);
+            else
+                TSDebug(DEBUG_TAG, "Created stat_name: %s stat_id: %d", name, (int)stat_id);
+        }
+        TSMutexUnlock(create_mutex);
+
+        search.key = TSstrdup(name);
+        search.data = (void *) stat_id;
+        hsearch_r(search, ENTER, &result, &stat_cache);
+        TSDebug(DEBUG_TAG, "Cached stat_name: %s stat_id: %d", name, (int)stat_id);
+    }
+    else
+        stat_id = (intptr_t) result->data;
+
+    if (likely(stat_id >= 0))
+        TSStatIntIncrement((int)stat_id, amount);
+    else
+        TSDebug(DEBUG_TAG, "stat error! stat_name: %s stat_id: %d", name, (int)stat_id);
+}
+
+static char *
+get_effective_host(TSHttpTxn txn)
+{
+    char *effective_url, *tmp;
+    const char *host;
+    int len;
+    TSMBuffer buf;
+    TSMLoc url_loc;
+
+    effective_url = TSHttpTxnEffectiveUrlStringGet(txn, &len);
+    buf = TSMBufferCreate();
+    TSUrlCreate(buf, &url_loc);
+    tmp = effective_url;
+    TSUrlParse(buf, url_loc, (const char **) (&tmp), (const char *) (effective_url + len));
+    TSfree(effective_url);
+    host = TSUrlHostGet(buf, url_loc, &len);
+    tmp = TSstrndup(host, len);
+    TSHandleMLocRelease(buf, TS_NULL_MLOC, url_loc);
+    TSMBufferDestroy(buf);
+    return tmp;
+}
+
+static int
+handle_read_req_hdr(TSCont cont, TSEvent event ATS_UNUSED, void *edata)
+{
+    TSHttpTxn txn = (TSHttpTxn) edata;
+    config_t *config;
+    void *txnd;
+
+    config = (config_t *) TSContDataGet(cont);
+    txnd = (void *) get_effective_host(txn); // low bit left 0 because we do not know that remap succeeded yet
+    TSHttpTxnArgSet(txn, config->txn_slot, txnd);
+
+    TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+    TSDebug(DEBUG_TAG, "Read Req Handler Finished");
+    return 0;
+}
+
+static int
+handle_post_remap(TSCont cont, TSEvent event ATS_UNUSED, void *edata)
+{
+    TSHttpTxn txn = (TSHttpTxn) edata;
+    config_t *config;
+    void *txnd = (void *) 0x01; // low bit 1 because we are post remap and thus success
+
+    config = (config_t *) TSContDataGet(cont);
+
+    if (config->post_remap_host)
+        TSHttpTxnArgSet(txn, config->txn_slot, txnd);
+    else
+    {
+        txnd = (void *) ((intptr_t)txnd | (intptr_t)TSHttpTxnArgGet(txn, config->txn_slot)); // We need the hostname pre-remap
+        TSHttpTxnArgSet(txn, config->txn_slot, txnd);
+    }
+
+    TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+    TSDebug(DEBUG_TAG, "Post Remap Handler Finished");
+    return 0;
+}
+
+#define CREATE_STAT_NAME(s,h,b) snprintf(s, MAX_STAT_LENGTH, "plugin.%s.%s.%s", PLUGIN_NAME, h, b);
+
+static int
+handle_txn_close(TSCont cont, TSEvent event ATS_UNUSED, void *edata)
+{
+    TSHttpTxn txn = (TSHttpTxn) edata;
+    config_t *config;
+    void *txnd;
+    TSHttpStatus status_code = 0;
+    TSMBuffer buf;
+    TSMLoc hdr_loc;
+    uint64_t out_bytes, in_bytes;
+    char *remap, *hostname;
+    char *unknown = "unknown";
+    char stat_name[MAX_STAT_LENGTH];
+
+    config = (config_t *) TSContDataGet(cont);
+    txnd = TSHttpTxnArgGet(txn, config->txn_slot);
+
+    hostname = (char *) ((intptr_t)txnd & (~((intptr_t) 0x01))); // Get hostname
+
+    if (txnd)
+    {
+        if ((intptr_t) txnd & 0x01) // remap succeeded?
+        {
+            if (!config->post_remap_host)
+                remap = hostname;
+            else
+                remap = get_effective_host(txn);
+
+            if (!remap)
+                remap = unknown;
+
+            in_bytes = TSHttpTxnClientReqHdrBytesGet(txn);
+            in_bytes += TSHttpTxnClientReqBodyBytesGet(txn);
+
+            CREATE_STAT_NAME(stat_name, remap, "in_bytes")
+            stat_add(stat_name, (TSMgmtInt) in_bytes, config->persist_type, config->stat_creation_mutex);
+
+            out_bytes = TSHttpTxnClientRespHdrBytesGet(txn);
+            out_bytes += TSHttpTxnClientRespBodyBytesGet(txn);
+
+            CREATE_STAT_NAME(stat_name, remap, "out_bytes")
+            stat_add(stat_name, (TSMgmtInt) out_bytes, config->persist_type, config->stat_creation_mutex);
+
+            if (TSHttpTxnClientRespGet(txn, &buf, &hdr_loc) == TS_SUCCESS)
+            {
+                status_code = TSHttpHdrStatusGet(buf, hdr_loc);
+                TSHandleMLocRelease(buf, TS_NULL_MLOC, hdr_loc);
+
+                if ((status_code >= 200) && (status_code <= 299))
+                    CREATE_STAT_NAME(stat_name, remap, "status_2xx")
+                else if ((status_code >= 300) && (status_code <= 399))
+                    CREATE_STAT_NAME(stat_name, remap, "status_3xx")
+                else if ((status_code >= 400) && (status_code <= 499))
+                    CREATE_STAT_NAME(stat_name, remap, "status_4xx")
+                else if ((status_code >= 500) && ((int)status_code <= 599))
+                    CREATE_STAT_NAME(stat_name, remap, "status_5xx")
+                else
+                    CREATE_STAT_NAME(stat_name, remap, "status_other")
+
+                stat_add(stat_name, 1, config->persist_type, config->stat_creation_mutex);
+            }
+            else
+            {
+                CREATE_STAT_NAME(stat_name, remap, "status_unknown")
+                stat_add(stat_name, 1, config->persist_type, config->stat_creation_mutex);
+            }
+
+            if (remap != unknown)
+                TSfree(remap);
+        }
+        else if (hostname)
+            TSfree(hostname);
+    }
+
+    TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+    TSDebug(DEBUG_TAG, "Handler Finished");
+    return 0;
+}
+
+void
+TSPluginInit (int argc, const char *argv[])
+{
+    TSPluginRegistrationInfo info;
+    TSCont pre_remap_cont, post_remap_cont, global_cont;
+    config_t *config;
+
+    info.plugin_name = PLUGIN_NAME;
+    info.vendor_name = "Apache Software Foundation";
+    info.support_email = "dev@trafficserver.apache.org";
+
+    if (TSPluginRegister(TS_SDK_VERSION_3_0 , &info) != TS_SUCCESS)
+    {
+        TSError("Plugin registration failed.");
+        return;
+    }
+    else
+        TSDebug(DEBUG_TAG, "Plugin registration succeeded.");
+
+    config = TSmalloc(sizeof(config_t));
+    config->post_remap_host = false;
+    config->persist_type = TS_STAT_NON_PERSISTENT;
+    config->stat_creation_mutex = TSMutexCreate();
+
+    if (argc > 1)
+    {
+        int c;
+        optind = 1;
+        static const struct option longopts[] = {
+                { "post-remap-host", no_argument, NULL, 'P' },
+                { "persistent", no_argument, NULL, 'p' },
+                { NULL, 0, NULL, 0 }
+            };
+
+        while ((c = getopt_long(argc, (char * const*) argv, "Pp", longopts, NULL)) != -1)
+        {
+            switch (c)
+            {
+                case 'P':
+                    config->post_remap_host = true;
+                    TSDebug(DEBUG_TAG, "Using post remap hostname");
+                    break;
+                case 'p':
+                    config->persist_type = TS_STAT_PERSISTENT;
+                    TSDebug(DEBUG_TAG, "Using persistent stats");
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+    TSHttpArgIndexReserve(PLUGIN_NAME, "txn data", &(config->txn_slot));
+
+    if (!config->post_remap_host)
+    {
+        pre_remap_cont = TSContCreate(handle_read_req_hdr, NULL);
+        TSContDataSet(pre_remap_cont, (void *) config);
+        TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, pre_remap_cont);
+    }
+
+    post_remap_cont = TSContCreate(handle_post_remap, NULL);
+    TSContDataSet(post_remap_cont, (void *) config);
+    TSHttpHookAdd(TS_HTTP_POST_REMAP_HOOK, post_remap_cont);
+
+    global_cont = TSContCreate(handle_txn_close, NULL);
+    TSContDataSet(global_cont, (void *) config);
+    TSHttpHookAdd(TS_HTTP_TXN_CLOSE_HOOK, global_cont);
+
+    TSDebug(DEBUG_TAG, "Init complete");
+}
diff --git a/plugins/experimental/s3_auth/Makefile.am b/plugins/experimental/s3_auth/Makefile.am
new file mode 100644
index 00000000..d2d3172b
--- /dev/null
+++ b/plugins/experimental/s3_auth/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = s3_auth.la
+s3_auth_la_SOURCES = s3_auth.cc
+s3_auth_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/s3_auth/Makefile.in b/plugins/experimental/s3_auth/Makefile.in
new file mode 100644
index 00000000..69a66771
--- /dev/null
+++ b/plugins/experimental/s3_auth/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = plugins/experimental/s3_auth
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+  -D__STDC_FORMAT_MACROS=1 \
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+  -I$(top_srcdir)/proxy/api \
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+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/s3_auth/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
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+	}
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+uninstall-pkglibLTLIBRARIES:
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+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
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+	done
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+clean-pkglibLTLIBRARIES:
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+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
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+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+	fi
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+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/s3_auth/s3_auth.cc b/plugins/experimental/s3_auth/s3_auth.cc
new file mode 100644
index 00000000..c5ec0cc2
--- /dev/null
+++ b/plugins/experimental/s3_auth/s3_auth.cc
@@ -0,0 +1,528 @@
+/** @file
+
+  This is a simple URL signature generator for AWS S3 services.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#include <time.h>
+#include <string.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <limits.h>
+#include <ctype.h>
+
+#include <openssl/sha.h>
+#include <openssl/hmac.h>
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Some constants.
+//
+static const char PLUGIN_NAME[] = "s3_auth";
+static const char DATE_FMT[] = "%a, %d %b %Y %H:%M:%S %z";
+
+
+///////////////////////////////////////////////////////////////////////////////
+// One configuration setup
+//
+int event_handler(TSCont, TSEvent, void*); // Forward declaration
+
+class S3Config
+{
+public:
+  S3Config()
+    : _secret(NULL), _secret_len(0), _keyid(NULL), _keyid_len(0), _virt_host(false), _version(2), _cont(NULL)
+  {
+    _cont = TSContCreate(event_handler, NULL);
+    TSContDataSet(_cont, static_cast<void*>(this));
+  }
+
+  ~S3Config()
+  {
+    _secret_len = _keyid_len = 0;
+    TSfree(_secret);
+    TSfree(_keyid);
+    TSContDestroy(_cont);
+  }
+
+  // Is this configuration usable?
+  bool valid() const { return _secret && (_secret_len > 0) && _keyid && ( _keyid_len > 0) && (2 == _version); }
+
+  // Getters
+  bool virt_host() const { return _virt_host; }
+  const char* secret() const { return _secret; }
+  const char* keyid() const { return _keyid; }
+  int secret_len() const { return _secret_len; }
+  int keyid_len() const { return _keyid_len; }
+
+  // Setters
+  void set_secret(const char* s) { TSfree(_secret); _secret = TSstrdup(s); _secret_len = strlen(s); }
+  void set_keyid(const char* s) { TSfree(_keyid); _keyid = TSstrdup(s); _keyid_len = strlen(s); }
+  void set_virt_host(bool f = true) { _virt_host = f; }
+  void set_version(const char* s) { _version = strtol(s, NULL, 10); }
+
+  // Parse configs from an external file
+  bool parse_config(const char* config);
+
+  // This should be called from the remap plugin, to setup the TXN hook for
+  // SEND_REQUEST_HDR, such that we always attach the appropriate S3 auth.
+  void schedule(TSHttpTxn txnp) const { TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_REQUEST_HDR_HOOK, _cont); }
+
+private:
+  char* _secret;
+  size_t _secret_len;
+  char* _keyid;
+  size_t _keyid_len;
+  bool _virt_host;
+  int _version;
+  TSCont _cont;
+};
+
+
+bool
+S3Config::parse_config(const char* config)
+{
+  if (!config) {
+    TSError("%s: called without a config file, this is broken", PLUGIN_NAME);
+    return false;
+  } else {
+    char filename[PATH_MAX + 1];
+
+    if (*config != '/') {
+      snprintf(filename, sizeof(filename) - 1, "%s/%s", TSConfigDirGet(), config);
+      config = filename;
+    }
+
+    char line[512]; // These are long lines ...
+    FILE *file = fopen(config, "r");
+
+    if (NULL == file) {
+      TSError("%s: unable to open %s", PLUGIN_NAME, config);
+      return false;
+    }
+
+    while (fgets(line, sizeof(line), file) != NULL) {
+      char *pos1, *pos2;
+
+      // Skip leading white spaces
+      pos1 = line;
+      while (*pos1 && isspace(*pos1))
+        ++pos1;
+      if (! *pos1 || ('#' == *pos1)) {
+        continue;
+      }
+
+      // Skip trailig white spaces
+      pos2 = pos1;
+      pos1 = pos2 + strlen(pos2) - 1;
+      while ((pos1 > pos2) && isspace(*pos1))
+        *(pos1--) = '\0';
+      if (pos1 == pos2) {
+        continue;
+      }
+
+      // Identify the keys (and values if appropriate)
+      if (0 == strncasecmp(pos2, "secret_key=", 11)) {
+        set_secret(pos2 + 11);
+      } else if (0 == strncasecmp(pos2, "access_key=", 11)) {
+        set_keyid(pos2 + 11);
+      } else if (0 == strncasecmp(pos2, "version=", 8)) {
+        set_version(pos2 + 8);
+      } else if (0 == strncasecmp(pos2, "virtual_host", 12)) {
+        set_virt_host();
+      } else {
+        // ToDo: warnings?
+      }
+    }
+
+    fclose(file);
+  }
+
+  return true;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// This class is used to perform the S3 auth generation.
+//
+class S3Request
+{
+public:
+  S3Request(TSHttpTxn txnp)
+    :  _txnp(txnp), _bufp(NULL), _hdr_loc(TS_NULL_MLOC), _url_loc(TS_NULL_MLOC)
+  { }
+
+  ~S3Request()
+  {
+    TSHandleMLocRelease(_bufp, _hdr_loc, _url_loc);
+    TSHandleMLocRelease(_bufp, TS_NULL_MLOC, _hdr_loc);
+  }
+
+  bool
+  initialize()
+  {
+    if (TS_SUCCESS != TSHttpTxnServerReqGet(_txnp, &_bufp, &_hdr_loc)) {
+      return false;
+    }
+    if (TS_SUCCESS != TSHttpHdrUrlGet(_bufp, _hdr_loc, &_url_loc)) {
+      return false;
+    }
+
+    return true;
+  }
+
+  TSHttpStatus authorize(S3Config *s3);
+  bool set_header(const char* header, int header_len, const char* val, int val_len);
+
+private:
+  TSHttpTxn _txnp;
+  TSMBuffer _bufp;
+  TSMLoc _hdr_loc, _url_loc;
+};
+
+
+///////////////////////////////////////////////////////////////////////////
+// Set a header to a specific value. This will avoid going to through a
+// remove / add sequence in case of an existing header.
+// but clean.
+bool
+S3Request::set_header(const char* header, int header_len, const char* val, int val_len)
+{
+  if (!header || header_len <= 0 || !val || val_len <= 0) {
+    return false;
+  }
+
+  bool ret = false;
+  TSMLoc field_loc = TSMimeHdrFieldFind(_bufp, _hdr_loc, header, header_len);
+
+  if (!field_loc) {
+    // No existing header, so create one
+    if (TS_SUCCESS == TSMimeHdrFieldCreateNamed(_bufp, _hdr_loc, header, header_len, &field_loc)) {
+      if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(_bufp, _hdr_loc, field_loc, -1, val, val_len)) {
+        TSMimeHdrFieldAppend(_bufp, _hdr_loc, field_loc);
+        ret = true;
+      }
+      TSHandleMLocRelease(_bufp, _hdr_loc, field_loc);
+    }
+  } else {
+    TSMLoc tmp = NULL;
+    bool first = true;
+
+    while (field_loc) {
+      if (first) {
+        first = false;
+        if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(_bufp, _hdr_loc, field_loc, -1, val, val_len)) {
+          ret = true;
+        }
+      } else {
+        TSMimeHdrFieldDestroy(_bufp, _hdr_loc, field_loc);
+      }
+      tmp = TSMimeHdrFieldNextDup(_bufp, _hdr_loc, field_loc);
+      TSHandleMLocRelease(_bufp, _hdr_loc, field_loc);
+      field_loc = tmp;
+    }
+  }
+
+  if (ret) {
+    TSDebug(PLUGIN_NAME, "Set the header %.*s: %.*s", header_len, header, val_len, val);
+  }
+
+  return ret;
+}
+
+
+// Method to authorize the S3 request:
+//
+// StringToSign = HTTP-VERB + "\n" +
+//    Content-MD5 + "\n" +
+//    Content-Type + "\n" +
+//    Date + "\n" +
+//    CanonicalizedAmzHeaders +
+//    CanonicalizedResource;
+// 
+// ToDo:
+// -----
+//     1) UTF8
+//     2) Support POST type requests
+//     3) Canonicalize the Amz headers
+//
+//  Note: This assumes that the URI path has been appropriately canonicalized by remapping
+//
+TSHttpStatus
+S3Request::authorize(S3Config *s3)
+{
+  TSHttpStatus status = TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+  TSMLoc host_loc = TS_NULL_MLOC;
+  int method_len = 0, path_len = 0, host_len = 0, date_len = 0;
+  const char *method = NULL, *path = NULL, *host = NULL, *host_endp = NULL;
+  char date[128]; // Plenty of space for a Date value
+  time_t now = time(NULL);
+  struct tm now_tm;
+
+  // Start with some request resources we need
+  if (NULL == (method = TSHttpHdrMethodGet(_bufp, _hdr_loc, &method_len))) {
+    return TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+  }
+  if (NULL == (path = TSUrlPathGet(_bufp, _url_loc, &path_len))) {
+    return TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+  }
+
+  // Next, setup the Date: header, it's required.
+  if (NULL == gmtime_r(&now, &now_tm)) {
+    return TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+  }
+  if ((date_len = strftime(date, sizeof(date) - 1, DATE_FMT, &now_tm)) <= 0) {
+    return TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+  }
+
+  // Add the Date: header to the request (this overwrites any existing Date header)
+  set_header(TS_MIME_FIELD_DATE, TS_MIME_LEN_DATE, date, date_len);
+
+  // If the configuration is a "virtual host" (foo.s3.aws ...), extract the
+  // first portion into the Host: header.
+  if (s3->virt_host()) {
+    host_loc = TSMimeHdrFieldFind(_bufp, _hdr_loc, TS_MIME_FIELD_HOST, TS_MIME_LEN_HOST);
+    if (host_loc) {
+      host = TSMimeHdrFieldValueStringGet(_bufp, _hdr_loc, host_loc, -1, &host_len);
+      host_endp = static_cast<const char*>(memchr(host, '.', host_len));
+    } else {
+      return TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+    }
+  }
+
+  // For debugging, lets produce some nice output
+  if (TSIsDebugTagSet(PLUGIN_NAME)) {
+    TSDebug(PLUGIN_NAME, "Signature string is:");
+    // ToDo: This should include the Content-MD5 and Content-Type (for POST)
+    fprintf(stderr, "%.*s\n\n\n%.*s\n/", method_len, method, date_len, date);
+
+    // ToDo: What to do with the CanonicalizedAmzHeaders ...
+    if (host && host_endp) {
+      fprintf(stderr, "%.*s/", static_cast<int>(host_endp - host), host);
+    }
+    fprintf(stderr, "%.*s\n", path_len, path);
+  }
+
+  // Produce the SHA1 MAC digest
+  HMAC_CTX ctx;
+  unsigned int hmac_len;
+  size_t hmac_b64_len;
+  unsigned char hmac[SHA_DIGEST_LENGTH];
+  char hmac_b64[SHA_DIGEST_LENGTH * 2];
+
+  HMAC_CTX_init(&ctx);
+  HMAC_Init_ex(&ctx, s3->secret(), s3->secret_len(), EVP_sha1(), NULL);
+  HMAC_Update(&ctx, (unsigned char*)method, method_len);
+  HMAC_Update(&ctx, (unsigned char*)"\n\n\n", 3); // ToDo: This should be POST info (see above)
+  HMAC_Update(&ctx, (unsigned char*)date, date_len);
+  HMAC_Update(&ctx, (unsigned char*)"\n/", 2);
+
+  if (host && host_endp) {
+    HMAC_Update(&ctx, (unsigned char*)host, host_endp - host);
+    HMAC_Update(&ctx, (unsigned char*)"/", 1);
+  }
+
+  HMAC_Update(&ctx, (unsigned char*)path, path_len);
+  HMAC_Final(&ctx, hmac, &hmac_len);
+  HMAC_CTX_cleanup(&ctx);
+
+  // Do the Base64 encoding and set the Authorization header.
+  if (TS_SUCCESS == TSBase64Encode((const char*)hmac, hmac_len, hmac_b64, sizeof(hmac_b64) - 1, &hmac_b64_len)) {
+    char auth[256]; // This is way bigger than any string we can think of.
+    int auth_len = snprintf(auth, sizeof(auth), "AWS %s:%.*s", s3->keyid(), static_cast<int>(hmac_b64_len), hmac_b64);
+
+    if ((auth_len > 0) && (auth_len < static_cast<int>(sizeof(auth)))) {
+      set_header(TS_MIME_FIELD_AUTHORIZATION, TS_MIME_LEN_AUTHORIZATION, auth, auth_len);
+      status = TS_HTTP_STATUS_OK;
+    }
+  }
+
+  // Cleanup
+  TSHandleMLocRelease(_bufp, _hdr_loc, host_loc);
+
+  return status;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// This is the main continuation.
+int
+event_handler(TSCont cont, TSEvent /* event */, void* edata)
+{
+  TSHttpTxn txnp = static_cast<TSHttpTxn>(edata);
+  S3Request request(txnp);
+  TSHttpStatus status = TS_HTTP_STATUS_INTERNAL_SERVER_ERROR;
+
+  if (request.initialize()) {
+    status = request.authorize(static_cast<S3Config*>(TSContDataGet(cont)));
+  }
+
+  if (TS_HTTP_STATUS_OK == status) {
+    TSDebug(PLUGIN_NAME, "Succesfully signed the AWS S3 URL");
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  } else {
+    TSDebug(PLUGIN_NAME, "Failed to sign the AWS S3 URL, status = %d", status);
+    TSHttpTxnSetHttpRetStatus(txnp, status);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+  }
+
+  return 0;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[tsremap_init] - Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapInit] - Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  TSDebug(PLUGIN_NAME, "plugin is successfully initialized");
+  return TS_SUCCESS;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// One instance per remap.config invocation.
+//
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** ih, char* /* errbuf ATS_UNUSED */, int /* errbuf_size ATS_UNUSED */)
+{
+  static const struct option longopt[] = {
+    { const_cast<char *>("access_key"), required_argument, NULL, 'a' },
+    { const_cast<char *>("config"), required_argument, NULL, 'c' },
+    { const_cast<char *>("secret_key"), required_argument, NULL, 's' },
+    { const_cast<char *>("version"), required_argument, NULL, 'v' },
+    { const_cast<char *>("virtual_host"), no_argument, NULL, 'h' },
+    {NULL, no_argument, NULL, '\0' }
+  };
+
+  S3Config* s3 = new S3Config();
+
+  // argv contains the "to" and "from" URLs. Skip the first so that the
+  // second one poses as the program name.
+  --argc;
+  ++argv;
+  optind = 0;
+
+  while (true) {
+    int opt = getopt_long(argc, static_cast<char * const *>(argv), "", longopt, NULL);
+
+    switch (opt) {
+    case 'c':
+      s3->parse_config(optarg);
+      break;
+    case 'k':
+      s3->set_keyid(optarg);
+      break;
+    case 's':
+      s3->set_secret(optarg);
+      break;
+    case 'h':
+      s3->set_virt_host();
+      break;
+    case 'v':
+      s3->set_version(optarg);
+      break;
+    }
+
+    if (opt == -1) {
+      break;
+    }
+  }
+
+  // Make sure we got both the shared secret and the AWS secret
+  if (!s3->valid()) {
+    TSError("%s: requires both shared and AWS secret configuration", PLUGIN_NAME);
+    delete s3;
+    *ih = NULL;
+    return TS_ERROR;
+  }
+
+  *ih = static_cast<void*>(s3);
+  TSDebug(PLUGIN_NAME, "New rule: secret_key=%s, access_key=%s, virtual_host=%s",
+          s3->secret(), s3->keyid(), s3->virt_host() ? "yes" : "no");
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  S3Config* s3 = static_cast<S3Config*>(ih);
+
+  delete s3;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// This is the main "entry" point for the plugin, called for every request.
+//
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn txnp, TSRemapRequestInfo */* rri */)
+{
+  S3Config* s3 = static_cast<S3Config*>(ih);
+
+  TSAssert(s3->valid());
+  if (s3) {
+    // Now schedule the continuation to update the URL when going to origin.
+    // Note that in most cases, this is a No-Op, assuming you have reasonable
+    // cache hit ratio. However, the scheduling is next to free (very cheap).
+    // Another option would be to use a single global hook, and pass the "s3"
+    // configs via a TXN argument.
+    s3->schedule(txnp);
+  } else {
+    TSDebug(PLUGIN_NAME, "Remap context is invalid");
+    TSError("%s: No remap context available, check code / config", PLUGIN_NAME);
+    TSHttpTxnSetHttpRetStatus(txnp, TS_HTTP_STATUS_INTERNAL_SERVER_ERROR);
+  }
+
+  // This plugin actually doesn't do anything with remapping. Ever.
+  return TSREMAP_NO_REMAP;
+}
+
+
+
+/*
+  local variables:
+  mode: C++
+  indent-tabs-mode: nil
+  c-basic-offset: 2
+  c-comment-only-line-offset: 0
+  c-file-offsets: ((statement-block-intro . +)
+  (label . 0)
+  (statement-cont . +)
+  (innamespace . 0))
+  end:
+
+  Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
+*/
diff --git a/plugins/experimental/spdy/Makefile.am b/plugins/experimental/spdy/Makefile.am
new file mode 100644
index 00000000..2c323984
--- /dev/null
+++ b/plugins/experimental/spdy/Makefile.am
@@ -0,0 +1,56 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+if BUILD_HAVE_CXX_11
+
+pkglib_LTLIBRARIES = spdy.la
+noinst_LTLIBRARIES = libspdycore.la
+check_PROGRAMS = zstream_test
+
+AM_CPPFLAGS += \
+  -I$(srcdir)/lib
+
+if BUILD_HAVE_LIBCXX
+AM_CXXFLAGS += -stdlib=libc++
+endif
+
+spdy_la_SOURCES =  \
+  http.cc \
+  io.cc \
+  protocol.cc \
+  spdy.cc \
+  stream.cc \
+  strings.cc
+
+libspdycore_la_SOURCES = \
+  lib/base/logging.cc \
+  lib/spdy/message.cc \
+  lib/spdy/zstream.cc
+
+spdy_la_LIBADD = libspdycore.la
+spdy_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
+zstream_test_SOURCES = tests/zstream_test.cc tests/stubs.cc
+zstream_test_LDADD = libspdycore.la -lz
+
+TESTS = $(check_PROGRAMS)
+
+test:: $(TESTS)
+	for f in $(TESTS) ; do $$f ; done
+
+endif # BUILD_HAVE_CXX_11
diff --git a/plugins/experimental/spdy/TODO b/plugins/experimental/spdy/TODO
new file mode 100644
index 00000000..b0c08dd5
--- /dev/null
+++ b/plugins/experimental/spdy/TODO
@@ -0,0 +1,20 @@
+- Testing, testing, testing
+
+  Currently, this plugin always crashes when sending a response.
+  It's probably a small fix, but the whole thing is *very* lightly
+  tested.
+
+- SPDY/4 protocol support
+
+  If SPDY/4 ever gets any traction we should implement that. At this point,
+  it's probably worth using a third-party SPDY marshalling library.
+
+- Chunked encoding support
+
+  Figure out what's neede to support origin servers sending chunked
+  requests.
+
+- SPDY client suport
+
+  Is might be useful to support sending SPDY requests to origin
+  servers. This would be necessary for push support, for example.
diff --git a/plugins/experimental/spdy/http.cc b/plugins/experimental/spdy/http.cc
new file mode 100644
index 00000000..64d46deb
--- /dev/null
+++ b/plugins/experimental/spdy/http.cc
@@ -0,0 +1,307 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// http.cc - Low level routines to write HTTP messages.
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#include <spdy/spdy.h>
+#include <base/logging.h>
+#include "io.h"
+#include "http.h"
+#include "protocol.h"
+
+static void
+populate_http_headers(
+        TSMBuffer   buffer,
+        TSMLoc      header,
+        spdy::protocol_version version,
+        spdy::key_value_block& kvblock)
+{
+    char status[128];
+    char httpvers[sizeof("HTTP/xx.xx")];
+
+    int vers = TSHttpHdrVersionGet(buffer, header);
+    TSHttpStatus code = TSHttpHdrStatusGet(buffer, header);
+
+    snprintf(status, sizeof(status),
+            "%u %s", (unsigned)code, TSHttpHdrReasonLookup(code));
+    snprintf(httpvers, sizeof(httpvers),
+            "HTTP/%u.%u", TS_HTTP_MAJOR(vers), TS_HTTP_MINOR(vers));
+
+    if (version == spdy::PROTOCOL_VERSION_2) {
+        kvblock["status"] = status;
+        kvblock["version"] = httpvers;
+    } else {
+        kvblock[":status"] = status;
+        kvblock[":version"] = httpvers;
+    }
+}
+
+void
+http_send_response(
+        spdy_io_stream *    stream,
+        TSMBuffer           buffer,
+        TSMLoc              header)
+{
+    TSMLoc      field;
+    spdy::key_value_block kvblock;
+
+    debug_http_header(stream, buffer, header);
+
+    field = TSMimeHdrFieldGet(buffer, header, 0);
+    while (field) {
+        TSMLoc next;
+        std::pair<const char *, int> name;
+        std::pair<const char *, int> value;
+
+        name.first = TSMimeHdrFieldNameGet(buffer, header, field, &name.second);
+
+        // XXX zwoop says that pointer comparisons ought to be
+        // sufficient here. If we can test and confirm, we can
+        // remove all the strcmp()s.
+
+        //The Connection, Keep-Alive, Proxy-Connection, and
+        //Transfer-Encoding headers are not valid and MUST not be
+        //sent.
+        if (strcmp(name.first, TS_MIME_FIELD_CONNECTION) == 0 ||
+                strcmp(name.first, TS_MIME_FIELD_KEEP_ALIVE) == 0 ||
+                strcmp(name.first, TS_MIME_FIELD_PROXY_CONNECTION) == 0 ||
+                strcmp(name.first, TS_MIME_FIELD_TRANSFER_ENCODING) == 0) {
+            debug_http("[%p/%u] skipping %s header",
+                    stream->io, stream->stream_id, name.first);
+            goto skip;
+        }
+
+        value.first = TSMimeHdrFieldValueStringGet(buffer, header,
+                field, -1, &value.second);
+        kvblock.insert(std::string(name.first, name.second),
+                std::string(value.first, value.second));
+
+skip:
+       next = TSMimeHdrFieldNext(buffer, header, field);
+       TSHandleMLocRelease(buffer, header, field);
+       field = next;
+    }
+
+    populate_http_headers(buffer, header, stream->version, kvblock);
+    spdy_send_syn_reply(stream, kvblock);
+}
+
+void
+http_send_error(
+        spdy_io_stream  *   stream,
+        TSHttpStatus        status)
+{
+    scoped_mbuffer      buffer;
+    scoped_http_header  header(buffer.get());
+
+    TSHttpHdrTypeSet(buffer.get(), header.get(), TS_HTTP_TYPE_RESPONSE);
+    TSHttpHdrVersionSet(buffer.get(), header.get(), TS_HTTP_VERSION(1, 1));
+    TSHttpHdrStatusSet(buffer.get(), header.get(), status);
+
+    debug_http("[%p/%u] sending a HTTP %d result for %s %s://%s%s",
+            stream->io, stream->stream_id, status,
+            stream->kvblock.url().method.c_str(),
+            stream->kvblock.url().scheme.c_str(),
+            stream->kvblock.url().hostport.c_str(),
+            stream->kvblock.url().path.c_str());
+
+    http_send_response(stream, buffer.get(), header.get());
+    spdy_send_data_frame(stream, spdy::FLAG_FIN, nullptr, 0);
+}
+
+void
+http_send_content(
+        spdy_io_stream *    stream,
+        TSIOBufferReader    reader)
+{
+    TSIOBufferBlock blk;
+    int64_t         consumed = 0;
+
+    blk = TSIOBufferReaderStart(stream->input.reader);
+    while (blk) {
+        const char *    ptr;
+        int64_t         nbytes;
+
+        ptr = TSIOBufferBlockReadStart(blk, reader, &nbytes);
+        if (ptr && nbytes) {
+            spdy_send_data_frame(stream, 0 /* flags */, ptr, nbytes);
+            consumed += nbytes;
+        }
+
+        blk = TSIOBufferBlockNext(blk);
+    }
+
+    TSIOBufferReaderConsume(reader, consumed);
+}
+
+void
+debug_http_header(
+        const spdy_io_stream *  stream,
+        TSMBuffer               buffer,
+        TSMLoc                  header)
+{
+    if (unlikely(TSIsDebugTagSet("spdy.http"))) {
+        spdy_io_buffer  iobuf;
+        int64_t         nbytes;
+        int64_t         avail;
+        const char *    ptr;
+        TSIOBufferBlock blk;
+
+        TSHttpHdrPrint(buffer, header, iobuf.buffer);
+        blk = TSIOBufferReaderStart(iobuf.reader);
+        avail = TSIOBufferBlockReadAvail(blk, iobuf.reader);
+        ptr = (const char *)TSIOBufferBlockReadStart(blk, iobuf.reader, &nbytes);
+
+        debug_http(
+            "[%p/%u] http request (%" PRIu64 " of %" PRIu64 " bytes):\n%*.*s",
+            stream, stream->stream_id, nbytes, avail,
+            (int)nbytes, (int)nbytes, ptr);
+    }
+}
+
+http_parser::http_parser()
+    : parser(TSHttpParserCreate()), mbuffer(), header(mbuffer.get()), complete(false)
+{
+}
+
+http_parser::~http_parser()
+{
+    if (parser) {
+        TSHttpParserDestroy(parser);
+    }
+}
+
+ssize_t
+http_parser::parse(TSIOBufferReader reader)
+{
+    TSIOBufferBlock blk;
+    ssize_t         consumed = 0;
+
+    for (blk = TSIOBufferReaderStart(reader); blk;
+                blk = TSIOBufferBlockNext(blk)) {
+        const char *    ptr;
+        const char *    end;
+        int64_t         nbytes;
+        TSParseResult   result;
+
+        ptr = TSIOBufferBlockReadStart(blk, reader, &nbytes);
+        if (ptr == nullptr || nbytes == 0) {
+            continue;
+        }
+
+        end = ptr + nbytes;
+        result = TSHttpHdrParseResp(parser, mbuffer.get(), header.get(), &ptr, end);
+        switch (result) {
+        case TS_PARSE_ERROR:
+            return (ssize_t)result;
+        case TS_PARSE_DONE:
+        case TS_PARSE_OK:
+            this->complete = true;
+        case TS_PARSE_CONT:
+            // We consumed the buffer we got minus the remainder.
+            consumed += (nbytes - std::distance(ptr, end));
+        }
+
+        if (this->complete) {
+            break;
+        }
+    }
+
+    TSIOBufferReaderConsume(reader, consumed);
+    return consumed;
+}
+
+static void
+make_ts_http_url(
+        TSMBuffer   buffer,
+        TSMLoc      header,
+        const spdy::key_value_block& kvblock)
+{
+    TSReturnCode    tstatus;
+    TSMLoc          url;
+
+    tstatus = TSHttpHdrUrlGet(buffer, header, &url);
+    if (tstatus == TS_ERROR) {
+        tstatus = TSUrlCreate(buffer, &url);
+    }
+
+    TSUrlSchemeSet(buffer, url,
+            kvblock.url().scheme.data(), kvblock.url().scheme.size());
+    TSUrlHostSet(buffer, url,
+            kvblock.url().hostport.data(), kvblock.url().hostport.size());
+    TSUrlPathSet(buffer, url,
+            kvblock.url().path.data(), kvblock.url().path.size());
+    TSHttpHdrMethodSet(buffer, header,
+            kvblock.url().method.data(), kvblock.url().method.size());
+
+    TSHttpHdrUrlSet(buffer, header, url);
+
+    TSAssert(tstatus == TS_SUCCESS);
+}
+
+static TSMLoc
+make_ts_http_header(
+        TSMBuffer buffer,
+        const spdy::key_value_block& kvblock)
+{
+    scoped_http_header header(buffer);
+
+    TSHttpHdrTypeSet(buffer, header, TS_HTTP_TYPE_REQUEST);
+
+    // XXX extract the real HTTP version header from kvblock.url()
+    TSHttpHdrVersionSet(buffer, header, TS_HTTP_VERSION(1, 1));
+    make_ts_http_url(buffer, header, kvblock);
+
+    // Duplicate the header fields into the MIME header for the HTTP request we
+    // are building.
+    for (auto ptr(kvblock.begin()); ptr != kvblock.end(); ++ptr) {
+        if (ptr->first[0] != ':') {
+            TSMLoc field;
+
+            // XXX Need special handling for duplicate headers; we should
+            // append them as a multi-value
+
+            TSMimeHdrFieldCreateNamed(buffer, header,
+                    ptr->first.c_str(), -1, &field);
+            TSMimeHdrFieldValueStringInsert(buffer, header, field,
+                    -1, ptr->second.c_str(), -1);
+            TSMimeHdrFieldAppend(buffer, header, field);
+        }
+    }
+
+    return header.release();
+}
+
+scoped_http_header::scoped_http_header(
+        TSMBuffer b,
+        const spdy::key_value_block& kvblock)
+    : buffer(b)
+{
+    this->header = make_ts_http_header(buffer, kvblock);
+}
+
+scoped_http_header::scoped_http_header(TSMBuffer b)
+        : header(TS_NULL_MLOC), buffer(b)
+{
+    header = TSHttpHdrCreate(buffer);
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/http.h b/plugins/experimental/spdy/http.h
new file mode 100644
index 00000000..a0f1475e
--- /dev/null
+++ b/plugins/experimental/spdy/http.h
@@ -0,0 +1,89 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef HTTP_H_E7A06C65_4FCF_46C0_8C97_455BEB9A3DE8
+#define HTTP_H_E7A06C65_4FCF_46C0_8C97_455BEB9A3DE8
+
+struct spdy_io_stream;
+namespace spdy { struct key_value_block; }
+
+// Send a HTTP error response on the given SPDY stream.
+void http_send_error(spdy_io_stream *, TSHttpStatus);
+
+// Send a HTTP response (HTTP header + MIME headers).
+void http_send_response(spdy_io_stream *, TSMBuffer, TSMLoc);
+
+// Send a chunk of the HTTP body content.
+void http_send_content(spdy_io_stream *, TSIOBufferReader);
+
+void debug_http_header(const spdy_io_stream *, TSMBuffer, TSMLoc);
+
+struct scoped_http_header
+{
+    explicit scoped_http_header(TSMBuffer b);
+    scoped_http_header(TSMBuffer, const spdy::key_value_block&);
+
+    scoped_http_header(TSMBuffer b, TSMLoc h)
+            : header(h), buffer(b) {
+    }
+
+    ~scoped_http_header() {
+        if (header != TS_NULL_MLOC) {
+            TSHttpHdrDestroy(buffer, header);
+            TSHandleMLocRelease(buffer, TS_NULL_MLOC, header);
+        }
+    }
+
+    operator bool() const {
+        return buffer != nullptr && header != TS_NULL_MLOC;
+    }
+
+    operator TSMLoc() const {
+        return header;
+    }
+
+    TSMLoc get() {
+        return header;
+    }
+
+    TSMLoc release() {
+        TSMLoc tmp = TS_NULL_MLOC;
+        std::swap(tmp, header);
+        return tmp;
+    }
+
+private:
+    TSMLoc      header;
+    TSMBuffer   buffer;
+};
+
+struct http_parser
+{
+    http_parser();
+    ~http_parser();
+
+    ssize_t parse(TSIOBufferReader);
+
+    TSHttpParser        parser;
+    scoped_mbuffer      mbuffer;
+    scoped_http_header  header;
+    bool                complete;
+};
+
+#endif /* HTTP_H_E7A06C65_4FCF_46C0_8C97_455BEB9A3DE8 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/io.cc b/plugins/experimental/spdy/io.cc
new file mode 100644
index 00000000..4c8ea962
--- /dev/null
+++ b/plugins/experimental/spdy/io.cc
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ts/ts.h>
+#include <spdy/spdy.h>
+#include "io.h"
+#include <memory>
+
+spdy_io_control::spdy_io_control(TSVConn v)
+    : vconn(v), input(), output(), streams(), last_stream_id(0)
+{
+}
+
+spdy_io_control::~spdy_io_control()
+{
+    TSVConnClose(vconn);
+
+    for (auto ptr(streams.begin()); ptr != streams.end(); ++ptr) {
+        release(ptr->second);
+    }
+}
+
+void
+spdy_io_control::reenable()
+{
+
+    TSVIO vio = TSVConnWriteVIOGet(this->vconn);
+    TSMutex mutex = TSVIOMutexGet(vio);
+
+    TSMutexLock(mutex);
+    TSVIOReenable(vio);
+    TSMutexUnlock(mutex);
+}
+
+bool
+spdy_io_control::valid_client_stream_id(unsigned stream_id) const
+{
+    if (stream_id == 0) { return false; } // must not be zero
+    if ((stream_id % 2) == 0) { return false; } // must be odd
+    return stream_id > last_stream_id;
+}
+
+spdy_io_stream *
+spdy_io_control::create_stream(unsigned stream_id)
+{
+    std::auto_ptr<spdy_io_stream> ptr(new spdy_io_stream(stream_id));
+    std::pair<stream_map_type::iterator, bool> result;
+
+    result = streams.insert(std::make_pair(stream_id, ptr.get()));
+    if (result.second) {
+        // Insert succeeded, hold a refcount on the stream.
+        retain(ptr.get());
+        last_stream_id = stream_id;
+        return ptr.release();
+    }
+
+    // stream-id collision ... fail and autorelease.
+    return NULL;
+}
+
+void
+spdy_io_control::destroy_stream(unsigned stream_id)
+{
+    stream_map_type::iterator ptr(streams.find(stream_id));
+    if (ptr != streams.end()) {
+        std::lock_guard<spdy_io_stream::lock_type> lk(ptr->second->lock);
+        release(ptr->second);
+        streams.erase(ptr);
+    }
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/io.h b/plugins/experimental/spdy/io.h
new file mode 100644
index 00000000..99a1491e
--- /dev/null
+++ b/plugins/experimental/spdy/io.h
@@ -0,0 +1,164 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef IO_H_C3455D48_1D3C_49C0_BB81_844F4C7946A5
+#define IO_H_C3455D48_1D3C_49C0_BB81_844F4C7946A5
+
+struct spdy_io_stream;
+struct spdy_io_control;
+struct http_parser;
+
+template <typename T, T (*Alloc)(void), TSReturnCode (*Destroy)(T)>
+struct scoped_ts_object
+{
+    scoped_ts_object() : ts(Alloc()) {
+    }
+
+    ~scoped_ts_object() {
+        if (ts) {
+            Destroy(ts);
+        }
+    }
+
+    T get() const {
+        return ts;
+    }
+
+    T release() {
+        T tmp(nullptr);
+        std::swap(ts, tmp);
+        return tmp;
+    }
+
+private:
+    T ts;
+};
+
+typedef scoped_ts_object<TSMBuffer, TSMBufferCreate, TSMBufferDestroy> scoped_mbuffer;
+
+template<> std::string stringof<TSEvent>(const TSEvent&);
+
+#include <base/atomic.h>
+#include "http.h"
+
+struct spdy_io_buffer {
+    TSIOBuffer          buffer;
+    TSIOBufferReader    reader;
+
+    spdy_io_buffer() {
+        buffer = TSIOBufferCreate();
+        reader = TSIOBufferReaderAlloc(buffer);
+    }
+
+    ~spdy_io_buffer() {
+        TSIOBufferReaderFree(reader);
+        TSIOBufferDestroy(buffer);
+    }
+
+    void consume(size_t nbytes) {
+        TSIOBufferReaderConsume(reader, nbytes);
+    }
+
+    void watermark(size_t nbytes) {
+        TSIOBufferWaterMarkSet(buffer, nbytes);
+    }
+
+};
+
+struct spdy_io_stream : public countable
+{
+    enum http_state_type : unsigned {
+        http_resolve_host       = 0x0001,
+        http_send_headers       = 0x0002,
+        http_receive_headers    = 0x0004,
+        http_send_content       = 0x0008,
+        http_receive_content    = 0x0010,
+        http_closed             = 0x0020
+    };
+
+    enum open_options : unsigned {
+        open_none = 0x0000,
+        open_with_system_resolver = 0x0001
+    };
+
+    explicit spdy_io_stream(unsigned);
+    virtual ~spdy_io_stream();
+
+    // Move kv into the stream and start processing it. Return true if the
+    // stream transitions to open state.
+    bool open(spdy::key_value_block&, open_options);
+    void close();
+
+    bool is_closed() const  { return !this->is_open(); }
+    bool is_open() const  { return this->action || this->vconn; }
+
+    typedef std::mutex lock_type;
+
+    unsigned                stream_id;
+    unsigned                http_state;
+
+    // NOTE: The caller *must* hold the stream lock when calling open() or
+    // close(), or processing any stream events.
+    lock_type               lock;
+
+    spdy::protocol_version  version;
+    TSAction                action;
+    TSVConn                 vconn;
+    TSCont                  continuation;
+    spdy::key_value_block   kvblock;
+
+    spdy_io_control *       io;
+    spdy_io_buffer          input;
+    spdy_io_buffer          output;
+    http_parser             hparser;
+
+    static spdy_io_stream * get(TSCont contp) {
+        return (spdy_io_stream *)TSContDataGet(contp);
+    }
+};
+
+struct spdy_io_control : public countable
+{
+    spdy_io_control(TSVConn);
+    ~spdy_io_control();
+
+    // TSVIOReenable() the associated TSVConnection.
+    void reenable();
+
+    bool                valid_client_stream_id(unsigned stream_id) const;
+    spdy_io_stream *    create_stream(unsigned stream_id);
+    void                destroy_stream(unsigned stream_id);
+
+    typedef std::map<unsigned, spdy_io_stream *> stream_map_type;
+
+    TSVConn             vconn;
+    spdy_io_buffer      input;
+    spdy_io_buffer      output;
+    stream_map_type     streams;
+    unsigned            last_stream_id;
+
+    spdy::zstream<spdy::compress>   compressor;
+    spdy::zstream<spdy::decompress> decompressor;
+
+    static spdy_io_control * get(TSCont contp) {
+        return (spdy_io_control *)TSContDataGet(contp);
+    }
+};
+
+#endif /* IO_H_C3455D48_1D3C_49C0_BB81_844F4C7946A5 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/base/atomic.h b/plugins/experimental/spdy/lib/base/atomic.h
new file mode 100644
index 00000000..56c5ef4c
--- /dev/null
+++ b/plugins/experimental/spdy/lib/base/atomic.h
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ATOMIC_H_A14B912F_B134_4D38_8EC1_51C50EC0FBE6
+#define ATOMIC_H_A14B912F_B134_4D38_8EC1_51C50EC0FBE6
+
+#include <mutex>
+#include <atomic>
+#include <thread>
+
+// Base mixin for reference-countable objects.
+struct countable
+{
+    countable() : refcnt(0) {}
+    virtual ~countable() {}
+
+private:
+    std::atomic<unsigned> refcnt;
+
+    template <typename T> friend T * retain(T * ptr);
+    template <typename T> friend void release(T * ptr);
+};
+
+// Increment the reference count of a countable object, returning it.
+template <typename T> T * retain(T * ptr) {
+    std::atomic_fetch_add_explicit(&ptr->refcnt, 1u, std::memory_order_acq_rel);
+    return ptr;
+}
+
+// Decrement the reference count of a countable object, deleting it if it was
+// the last reference.
+template <typename T> void release(T * ptr) {
+    unsigned count = std::atomic_fetch_sub_explicit(&ptr->refcnt, 1u, std::memory_order_acq_rel);
+    // If the previous refcount was 1, then we have decremented it to 0. We
+    // want to delete in that case.
+    if (count == 1u) {
+        delete ptr;
+    }
+}
+
+#endif /* ATOMIC_H_A14B912F_B134_4D38_8EC1_51C50EC0FBE6 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/base/inet.h b/plugins/experimental/spdy/lib/base/inet.h
new file mode 100644
index 00000000..86fd3f91
--- /dev/null
+++ b/plugins/experimental/spdy/lib/base/inet.h
@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef INET_H_9452AE2E_D6D2_4B26_AF98_7550DC033E54
+#define INET_H_9452AE2E_D6D2_4B26_AF98_7550DC033E54
+
+#include <stdlib.h> // abort
+#include <sys/types.h>
+#include <netinet/in.h>
+
+struct inet_address
+{
+    explicit inet_address(const struct sockaddr * addr) {
+        switch (addr->sa_family) {
+        case AF_INET:
+            memcpy(&sa.storage, addr, sizeof(sockaddr_in));
+            break;
+        case AF_INET6:
+            memcpy(&sa.storage, addr, sizeof(sockaddr_in6));
+            break;
+        default:
+            memset(&sa, 0, sizeof(sa));
+        }
+    }
+
+    uint16_t& port() {
+        switch (sa.storage.ss_family) {
+        case AF_INET:
+            return sa.in.sin_port;
+        case AF_INET6:
+            return sa.in6.sin6_port;
+        default:
+            TSError("invalid inet address type %u", sa.storage.ss_family);
+            abort();
+        }
+    }
+
+    const sockaddr * saddr() const {
+        return &sa.sa;
+    }
+
+private:
+    union {
+        struct sockaddr_in  in;
+        struct sockaddr_in6 in6;
+        struct sockaddr     sa;
+        struct sockaddr_storage storage;
+    } sa;
+};
+
+template <> std::string
+stringof<inet_address>(const inet_address& inaddr) {
+    return cstringof(*inaddr.saddr());
+}
+
+#endif /* INET_H_9452AE2E_D6D2_4B26_AF98_7550DC033E54 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/base/logging.cc b/plugins/experimental/spdy/lib/base/logging.cc
new file mode 100644
index 00000000..4e892e57
--- /dev/null
+++ b/plugins/experimental/spdy/lib/base/logging.cc
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "logging.h"
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+template <> std::string
+stringof<struct sockaddr>(const sockaddr& sa)
+{
+    char buf[INET6_ADDRSTRLEN + 1];
+    union {
+        const in_addr * in;
+        const in6_addr * in6;
+    } ptr;
+
+    ptr.in = nullptr;
+    switch (sa.sa_family) {
+    case AF_INET:
+        ptr.in = &((const sockaddr_in *)(&sa))->sin_addr;
+        break;
+    case AF_INET6:
+        ptr.in6 = &((const sockaddr_in6 *)(&sa))->sin6_addr;
+        break;
+    }
+
+    inet_ntop(sa.sa_family, ptr.in, buf, sizeof(buf));
+    return std::string(buf);
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
+
diff --git a/plugins/experimental/spdy/lib/base/logging.h b/plugins/experimental/spdy/lib/base/logging.h
new file mode 100644
index 00000000..a4c065a7
--- /dev/null
+++ b/plugins/experimental/spdy/lib/base/logging.h
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LOGGING_H_E307AFC6_4429_42F6_8E66_4004C6A78795
+#define LOGGING_H_E307AFC6_4429_42F6_8E66_4004C6A78795
+
+#include <string>
+
+extern "C" {
+
+// TS logging APIs don't get format attributes, so make sure we have a
+// compatible forward declaration.
+void TSDebug(const char *, const char *, ...)
+    __attribute__((format(printf, 2, 3)));
+
+void TSError(const char *, ...)
+    __attribute__((format(printf, 1, 2)));
+
+int TSIsDebugTagSet(const char*);
+}
+
+template <typename T> std::string stringof(const T&);
+#define cstringof(x) stringof(x).c_str()
+
+#define debug_tag(tag, fmt, ...) do { \
+    if (unlikely(TSIsDebugTagSet(tag))) { \
+        TSDebug(tag, fmt, ##__VA_ARGS__); \
+    } \
+} while(0)
+
+#define debug_protocol(fmt, ...) \
+    debug_tag("spdy.protocol", "%s:%d " fmt, __func__, __LINE__, ##__VA_ARGS__)
+#define debug_plugin(fmt, ...) \
+    debug_tag("spdy.plugin", "%s:%d " fmt, __func__, __LINE__, ##__VA_ARGS__)
+#define debug_http(fmt, ...) \
+    debug_tag("spdy.http", "%s:%d " fmt, __func__, __LINE__, ##__VA_ARGS__)
+
+// Internal logging helpers
+namespace detail {
+
+template <typename T>
+struct named_value
+{
+    const char * name;
+    T value;
+};
+
+template <typename T, unsigned N> const char *
+match(const named_value<T> (&names)[N], const T& value)
+{
+    for (unsigned i = 0; i < N; ++i) {
+        if (names[i].value == value) {
+            return names[i].name;
+        }
+    }
+
+    return "";
+}
+
+}
+
+#endif /* LOGGING_H_E307AFC6_4429_42F6_8E66_4004C6A78795 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/spdy/message.cc b/plugins/experimental/spdy/lib/spdy/message.cc
new file mode 100644
index 00000000..96de42d8
--- /dev/null
+++ b/plugins/experimental/spdy/lib/spdy/message.cc
@@ -0,0 +1,535 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "spdy.h"
+#include "zstream.h"
+#include <base/logging.h>
+
+#include <stdexcept>
+#include <vector>
+#include <map>
+#include <algorithm>
+#include <functional>
+#include <string.h>
+#include <arpa/inet.h>
+
+template<> std::string
+stringof<spdy::control_frame_type>(const spdy::control_frame_type& ev)
+{
+    static const detail::named_value<unsigned> control_names[] =
+    {
+        { "CONTROL_SYN_STREAM", 1 },
+        { "CONTROL_SYN_REPLY", 2 },
+        { "CONTROL_RST_STREAM", 3 },
+        { "CONTROL_SETTINGS", 4 },
+        { "CONTROL_PING", 6 },
+        { "CONTROL_GOAWAY", 7 },
+        { "CONTROL_HEADERS", 8 },
+        { "CONTROL_WINDOW_UPDATE", 9}
+    };
+
+    return detail::match(control_names, (unsigned)ev);
+}
+
+template<> std::string
+stringof<spdy::error>(const spdy::error& e)
+{
+    static const detail::named_value<unsigned> error_names[] =
+    {
+        { "PROTOCOL_ERROR", 1 },
+        { "INVALID_STREAM", 2 },
+        { "REFUSED_STREAM", 3 },
+        { "UNSUPPORTED_VERSION", 4 },
+        { "CANCEL", 5 },
+        { "FLOW_CONTROL_ERROR", 6 },
+        { "STREAM_IN_USE", 7 },
+        { "STREAM_ALREADY_CLOSED", 8 }
+    };
+
+    return detail::match(error_names, (unsigned)e);
+}
+
+// XXX for the insert and extract we assume that the compiler uses an intrinsic
+// to inline the memcpy() calls. Need to verify this by examining the
+// assembler.
+
+template <typename T> T
+extract(const uint8_t * &ptr) {
+    T val;
+    memcpy(&val, ptr, sizeof(val));
+    std::advance(ptr, sizeof(val));
+    return val;
+}
+
+template <> uint8_t
+extract<uint8_t>(const uint8_t * &ptr) {
+    return *ptr++;
+}
+
+template <typename T> void
+insert(const T& val, uint8_t * &ptr) {
+    memcpy(ptr, &val, sizeof(val));
+    std::advance(ptr, sizeof(val));
+}
+
+static inline uint32_t
+extract_stream_id(const uint8_t * &ptr)
+{
+    return ntohl(extract<uint32_t>(ptr)) & 0x7fffffffu;
+}
+
+static inline void
+insert_stream_id(uint32_t stream_id, uint8_t * &ptr)
+{
+    insert<uint32_t>(htonl(stream_id & 0x7fffffffu), ptr);
+}
+
+spdy::message_header
+spdy::message_header::parse(
+        const uint8_t * ptr, size_t len)
+{
+    message_header header;
+
+    if (len < message_header::size) {
+        throw protocol_error(std::string("short frame header"));
+    }
+
+    header.is_control = ((*ptr) & 0x80u) ? true : false;
+    if (header.is_control) {
+        uint32_t val;
+        header.control.version = ntohs(extract<uint16_t>(ptr)) & 0x7fffu;
+        header.control.type = (control_frame_type)ntohs(extract<uint16_t>(ptr));
+        val = ntohl(extract<uint32_t>(ptr));
+        header.flags = (val >> 24);
+        header.datalen = (val & 0x00ffffffu);
+    } else {
+        uint32_t val;
+        header.data.stream_id = extract_stream_id(ptr);
+        val = ntohl(extract<uint32_t>(ptr));
+        header.flags = (val >> 24);
+        header.datalen = (val & 0x00ffffffu);
+    }
+
+    return header;
+}
+
+size_t
+spdy::message_header::marshall(
+        const message_header& msg, uint8_t * ptr, size_t len)
+{
+    if (len < message_header::size) {
+        throw protocol_error(std::string("short message_header buffer"));
+    }
+
+    if (msg.is_control) {
+        insert<uint16_t>(htons(0x8000u | msg.control.version), ptr);
+        insert<uint16_t>(htons(msg.control.type), ptr);
+        insert<uint32_t>(htonl((msg.flags << 24) | (msg.datalen & 0x00ffffffu)), ptr);
+    } else {
+        insert_stream_id(msg.data.stream_id, ptr);
+        insert<uint32_t>(htonl((msg.flags << 24) | (msg.datalen & 0x00ffffffu)), ptr);
+    }
+
+    return message_header::size;
+}
+
+spdy::syn_stream_message
+spdy::syn_stream_message::parse(
+        const uint8_t * ptr, size_t len)
+{
+    syn_stream_message msg;
+
+    if (len < syn_stream_message::size) {
+        throw protocol_error(std::string("short syn_stream message"));
+    }
+
+    msg.stream_id = extract_stream_id(ptr);
+    msg.associated_id = extract_stream_id(ptr);
+    msg.priority = extract<uint8_t>(ptr) >> 5;  // top 3 bits are priority
+    (void)extract<uint8_t>(ptr); // skip unused byte
+    return msg;
+}
+
+spdy::goaway_message
+spdy::goaway_message::parse(
+        const uint8_t * ptr, size_t len)
+{
+    goaway_message msg;
+
+    if (len < goaway_message::size) {
+        throw protocol_error(std::string("short goaway_stream message"));
+    }
+
+    msg.last_stream_id = extract_stream_id(ptr);
+    msg.status_code = extract_stream_id(ptr);
+    return msg;
+}
+
+spdy::rst_stream_message
+spdy::rst_stream_message::parse(
+        const uint8_t * ptr, size_t len)
+{
+    rst_stream_message msg;
+
+    if (len < rst_stream_message::size) {
+        throw protocol_error(std::string("short rst_stream message"));
+    }
+
+    msg.stream_id = extract_stream_id(ptr);
+    msg.status_code = extract_stream_id(ptr);
+    return msg;
+}
+
+size_t
+spdy::rst_stream_message::marshall(
+        const rst_stream_message& msg, uint8_t * ptr, size_t len)
+{
+    if (len < rst_stream_message::size) {
+        throw protocol_error(std::string("short rst_stream buffer"));
+    }
+
+    insert_stream_id(msg.stream_id, ptr);
+    insert<uint32_t>(msg.status_code, ptr);
+    return rst_stream_message::size;
+}
+
+size_t
+spdy::syn_reply_message::marshall(
+        protocol_version            version,
+        const syn_reply_message&    msg,
+        uint8_t *                   ptr,
+        size_t                      len)
+{
+    if (len < size(version)) {
+        throw protocol_error(std::string("short syn_reply buffer"));
+    }
+
+    if (version < PROTOCOL_VERSION_3) {
+        // SPDYv2 has 2 extraneous bytes at the end. How nice that the SPDYv2
+        // spec is no longer on the internets.
+        insert_stream_id(msg.stream_id, ptr);
+        insert<uint16_t>(0, ptr);
+    } else {
+        insert_stream_id(msg.stream_id, ptr);
+    }
+
+    return size(version);
+}
+
+// +------------------------------------+
+// | Number of Name/Value pairs (int32) |
+// +------------------------------------+
+// |     Length of name (int32)         |
+// +------------------------------------+
+// |           Name (string)            |
+// +------------------------------------+
+// |     Length of value  (int32)       |
+// +------------------------------------+
+// |          Value   (string)          |
+// +------------------------------------+
+// |           (repeats)                |
+
+static spdy::zstream_error
+decompress_headers(
+        spdy::zstream<spdy::decompress>& decompressor,
+        std::vector<uint8_t>& bytes)
+{
+    ssize_t nbytes;
+
+    do {
+        size_t avail;
+        size_t old = bytes.size();
+        bytes.resize(bytes.size() + getpagesize());
+        avail = bytes.size() - old;
+        nbytes = decompressor.consume(&bytes[old], avail);
+        if (nbytes > 0) {
+            bytes.resize(old + nbytes);
+        } else {
+            bytes.resize(old);
+        }
+    } while (nbytes > 0);
+
+    if (nbytes < 0) {
+        return (spdy::zstream_error)(-nbytes);
+    }
+
+    return spdy::z_ok;
+}
+
+static ssize_t
+marshall_string_v2(
+        spdy::zstream<spdy::compress>&  compressor,
+        const std::string&              strval,
+        uint8_t *                       ptr,
+        size_t                          len,
+        unsigned                        flags)
+{
+    size_t      nbytes = 0;
+    ssize_t     status;
+    uint16_t    tmp16;
+
+    tmp16 = htons(strval.size());
+    compressor.input(&tmp16, sizeof(tmp16));
+    status = compressor.consume(ptr + nbytes, len - nbytes, flags);
+    if (status < 0) {
+        return status;
+    }
+
+    nbytes += status;
+
+    compressor.input(strval.c_str(), strval.size());
+    status = compressor.consume(ptr + nbytes, len - nbytes, flags);
+    if (status < 0) {
+        return status;
+    }
+
+    nbytes += status;
+    return nbytes;
+}
+
+static ssize_t
+marshall_name_value_pairs_v2(
+        spdy::zstream<spdy::compress>&  compressor,
+        const spdy::key_value_block&    kvblock,
+        uint8_t *                       ptr,
+        size_t                          len)
+{
+    size_t      nbytes = 0;
+    ssize_t     status;
+    uint16_t    tmp16;
+
+    tmp16 = htons(kvblock.size());
+    compressor.input(&tmp16, sizeof(tmp16));
+    status = compressor.consume(ptr + nbytes, len - nbytes, 0);
+    if (status < 0) {
+        return status;
+    }
+
+    nbytes += status;
+
+    for (auto kv(kvblock.begin()); kv != kvblock.end(); ++kv) {
+        status = marshall_string_v2(
+                compressor, kv->first, ptr + nbytes, len - nbytes, 0);
+        if (status < 0) {
+            return status;
+        }
+
+        nbytes += status;
+
+        status = marshall_string_v2(
+                compressor, kv->second, ptr + nbytes, len - nbytes, 0);
+        if (status < 0) {
+            return status;
+        }
+
+        nbytes += status;
+    }
+
+    do  {
+        status = compressor.consume(ptr + nbytes, len - nbytes, Z_SYNC_FLUSH);
+        if (status < 0) {
+            return status;
+        }
+        nbytes += status;
+    } while (status != 0);
+
+    return nbytes;
+}
+
+static spdy::key_value_block
+parse_name_value_pairs_v2(
+        const uint8_t * ptr, size_t len)
+{
+    int32_t npairs;
+    const uint8_t * end = ptr + len;
+
+    spdy::key_value_block kvblock;
+
+    if (len < sizeof(int32_t)) {
+        // XXX throw
+    }
+
+    npairs = ntohs(extract<int16_t>(ptr));
+    if (npairs < 1) {
+        //
+    }
+
+    while (npairs--) {
+        std::string key;
+        std::string val;
+        int32_t nbytes;
+
+        if (std::distance(ptr, end) < 8) {
+            // XXX
+        }
+
+        nbytes = ntohs(extract<uint16_t>(ptr));
+        if (std::distance(ptr, end) < nbytes) {
+            // XXX
+        }
+
+        key.assign((const char *)ptr, nbytes);
+        std::advance(ptr, nbytes);
+
+        nbytes = ntohs(extract<uint16_t>(ptr));
+        if (std::distance(ptr, end) < nbytes) {
+            // XXX
+        }
+
+        val.assign((const char *)ptr, nbytes);
+        std::advance(ptr, nbytes);
+
+        // XXX Extract this assignment section into a lambda. This would let us
+        // parse the kvblock into a key_value_block, or straight into the
+        // corresponding ATS data structures.
+        if (key == "host") {
+            kvblock.url().hostport = val;
+        } else if (key == "scheme") {
+            kvblock.url().scheme = val;
+        } else if (key == "url") {
+            kvblock.url().path = val;
+        } else if (key == "method") {
+            kvblock.url().method = val;
+        } else if (key == "version") {
+            kvblock.url().version = val;
+        } else {
+            kvblock.headers[key] = val;
+        }
+    }
+
+    return kvblock;
+}
+
+spdy::key_value_block
+spdy::key_value_block::parse(
+        protocol_version            version,
+        zstream<decompress>&        decompressor,
+        const uint8_t *  ptr,
+        size_t                      len)
+{
+    std::vector<uint8_t>    bytes;
+    key_value_block         kvblock;
+
+    if (version != PROTOCOL_VERSION_2) {
+        // XXX support v3 and throw a proper damn error.
+        throw std::runtime_error("unsupported version");
+    }
+
+    decompressor.input(ptr, len);
+    if (decompress_headers(decompressor, bytes) != z_ok) {
+        // XXX
+    }
+
+    return parse_name_value_pairs_v2(&bytes[0], bytes.size());
+}
+
+size_t
+spdy::key_value_block::marshall(
+        protocol_version            version,
+        spdy::zstream<compress>&    compressor,
+        const key_value_block&      kvblock,
+        uint8_t *                   ptr,
+        size_t                      len)
+{
+    ssize_t nbytes;
+
+    if (version != PROTOCOL_VERSION_2) {
+        // XXX support v3 and throw a proper damn error.
+        throw std::runtime_error("unsupported version");
+    }
+
+    nbytes = marshall_name_value_pairs_v2(compressor, kvblock, ptr, len);
+    if (nbytes < 0) {
+        throw std::runtime_error("marshalling failure");
+    }
+
+    return nbytes;
+}
+
+size_t
+spdy::key_value_block::nbytes(protocol_version version) const
+{
+    size_t nbytes = 0;
+    size_t lensz;
+
+    // Length fields are 2 bytes in SPDYv2 and 4 in later versions.
+    switch (version) {
+    case PROTOCOL_VERSION_3: lensz = 4; break;
+    case PROTOCOL_VERSION_2: lensz = 2; break;
+    default:
+        throw std::runtime_error("unsupported version");
+    }
+
+    nbytes += lensz;
+    for (auto ptr(begin()); ptr != end(); ++ptr) {
+        nbytes += lensz + ptr->first.size();
+        nbytes += lensz + ptr->second.size();
+    }
+
+    return nbytes;
+}
+
+struct lowercase : public std::unary_function<char, char>
+{
+    char operator() (char c) const {
+        // Return the lowercase ASCII only if it's in the uppercase
+        // ASCII range.
+        if (c > 0x40 && c < 0x5b) {
+            return c + 0x20;
+        }
+
+        return c;
+    }
+};
+
+void
+spdy::key_value_block::insert(
+        std::string key,
+        std::string value)
+{
+    std::transform(key.begin(), key.end(), key.begin(), lowercase());
+    headers[key] = value;
+}
+
+spdy::ping_message
+spdy::ping_message::parse(
+        const uint8_t * ptr, size_t len)
+{
+    ping_message msg;
+
+    if (len < ping_message::size) {
+        throw protocol_error(std::string("short ping message"));
+    }
+
+    msg.ping_id = ntohl(extract<uint32_t>(ptr));
+    return msg;
+}
+
+size_t
+spdy::ping_message::marshall(
+        const ping_message& msg, uint8_t * ptr, size_t len)
+{
+    if (len < ping_message::size) {
+        throw protocol_error(std::string("short ping_message buffer"));
+    }
+
+    insert<uint32_t>(htonl(msg.ping_id), ptr);
+    return ping_message::size;
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/spdy/spdy.h b/plugins/experimental/spdy/lib/spdy/spdy.h
new file mode 100644
index 00000000..90bea0f9
--- /dev/null
+++ b/plugins/experimental/spdy/lib/spdy/spdy.h
@@ -0,0 +1,291 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SPDY_H_57211D6A_F320_42E3_8205_89E651B4A5DB
+#define SPDY_H_57211D6A_F320_42E3_8205_89E651B4A5DB
+
+#include <inttypes.h>
+#include <stddef.h>
+#include <stdexcept>
+#include <string>
+#include <map>
+
+#include "zstream.h"
+
+namespace spdy {
+
+    enum protocol_version : unsigned {
+        PROTOCOL_VERSION_2 = 2,
+        PROTOCOL_VERSION_3 = 3
+    };
+
+    enum : unsigned {
+        PROTOCOL_VERSION = 3,
+        MAX_FRAME_LENGTH = (1u << 24)
+    };
+
+    enum : unsigned {
+        FLAG_FIN            = 1,
+        FLAG_COMPRESSED     = 2
+   };
+
+    struct protocol_error : public std::runtime_error {
+        explicit protocol_error(const std::string& msg)
+            : std::runtime_error(msg) {
+        }
+    };
+
+    enum control_frame_type : unsigned {
+        CONTROL_SYN_STREAM      = 1,
+        CONTROL_SYN_REPLY       = 2,
+        CONTROL_RST_STREAM      = 3,
+        CONTROL_SETTINGS        = 4,
+        CONTROL_PING            = 6,
+        CONTROL_GOAWAY          = 7,
+        CONTROL_HEADERS         = 8,
+        CONTROL_WINDOW_UPDATE   = 9
+    };
+
+
+    enum error : unsigned {
+        PROTOCOL_ERROR        = 1,
+        INVALID_STREAM        = 2,
+        REFUSED_STREAM        = 3,
+        UNSUPPORTED_VERSION   = 4,
+        CANCEL                = 5,
+        FLOW_CONTROL_ERROR    = 6,
+        STREAM_IN_USE         = 7,
+        STREAM_ALREADY_CLOSED = 8
+    };
+
+    // Control frame header:
+    // +----------------------------------+
+    // |C| Version(15bits) | Type(16bits) |
+    // +----------------------------------+
+    // | Flags (8)  |  Length (24 bits)   |
+    // +----------------------------------+
+    // |               Data               |
+    // +----------------------------------+
+    //
+    // Data frame header:
+    // +----------------------------------+
+    // |C|       Stream-ID (31bits)       |
+    // +----------------------------------+
+    // | Flags (8)  |  Length (24 bits)   |
+    // +----------------------------------+
+    // |               Data               |
+    // +----------------------------------+
+
+    struct message_header
+    {
+        union {
+            struct {
+                unsigned version;
+                control_frame_type type;
+            } control;
+            struct {
+                unsigned stream_id;
+            } data;
+        };
+
+        bool        is_control;
+        uint8_t     flags;
+        uint32_t    datalen;
+
+        static message_header parse(const uint8_t *, size_t);
+        static size_t marshall(const message_header&, uint8_t *, size_t);
+        enum : unsigned { size = 8 }; /* bytes */
+    };
+
+    // SYN_STREAM frame:
+    //
+    // +------------------------------------+
+    // |1|    version    |         1        |
+    // +------------------------------------+
+    // |  Flags (8)  |  Length (24 bits)    |
+    // +------------------------------------+
+    // |X|           Stream-ID (31bits)     |
+    // +------------------------------------+
+    // |X| Associated-To-Stream-ID (31bits) |
+    // +------------------------------------+
+    // |  Pri | Unused | Header Count(int16)|
+    // +------------------------------------+   <+
+    // |     Length of name (int32)         |    | This section is the "Name/Value
+    // +------------------------------------+    | Header Block", and is compressed.
+    // |           Name (string)            |    |
+    // +------------------------------------+    |
+    // |     Length of value  (int32)       |    |
+    // +------------------------------------+    |
+    // |          Value   (string)          |    |
+    // +------------------------------------+    |
+    // |           (repeats)                |   <+
+
+    struct syn_stream_message
+    {
+        unsigned stream_id;
+        unsigned associated_id;
+        unsigned priority;
+        unsigned header_count;
+
+        static syn_stream_message parse(const uint8_t *, size_t);
+        enum : unsigned { size = 10 }; /* bytes */
+    };
+
+    // SYN_REPLY frame:
+    //
+    // +------------------------------------+
+    // |1|    version    |         2        |
+    // +------------------------------------+
+    // |  Flags (8)  |  Length (24 bits)    |
+    // +------------------------------------+
+    // |X|           Stream-ID (31bits)     |
+    // +------------------------------------+
+    // | Number of Name/Value pairs (int32) |   <+
+    // +------------------------------------+    |
+    // |     Length of name (int32)         |    | This section is the "Name/Value
+    // +------------------------------------+    | Header Block", and is compressed.
+    // |           Name (string)            |    |
+    // +------------------------------------+    |
+    // |     Length of value  (int32)       |    |
+    // +------------------------------------+    |
+    // |          Value   (string)          |    |
+    // +------------------------------------+    |
+    // |           (repeats)                |   <+
+
+    struct syn_reply_message
+    {
+        unsigned stream_id;
+
+        static syn_stream_message parse(const uint8_t *, size_t);
+        static size_t marshall(protocol_version, const syn_reply_message&, uint8_t *, size_t);
+
+        static unsigned size(protocol_version v) {
+            return (v == PROTOCOL_VERSION_2) ? 6 : 4; /* bytes */
+        }
+    };
+
+    // GOAWAY frame:
+    //
+    // +----------------------------------+
+    // |1|   version    |         7       |
+    // +----------------------------------+
+    // | 0 (flags) |     8 (length)       |
+    // +----------------------------------|
+    // |X|  Last-good-stream-ID (31 bits) |
+    // +----------------------------------+
+    // |          Status code             |
+    // +----------------------------------+
+
+    struct goaway_message
+    {
+        unsigned last_stream_id;
+        unsigned status_code;
+
+        static goaway_message parse(const uint8_t *, size_t);
+        enum : unsigned { size = 8 }; /* bytes */
+    };
+
+    struct rst_stream_message
+    {
+        unsigned stream_id;
+        unsigned status_code;
+
+        static rst_stream_message parse(const uint8_t *, size_t);
+        static size_t marshall(const rst_stream_message&, uint8_t *, size_t);
+        enum : unsigned { size = 8 }; /* bytes */
+    };
+
+    struct ping_message
+    {
+        unsigned ping_id;
+
+        static ping_message parse(const uint8_t *, size_t);
+        static size_t marshall(const ping_message&, uint8_t *, size_t);
+        enum : unsigned { size = 4 }; /* bytes */
+    };
+
+    struct url_components
+    {
+        std::string method;
+        std::string scheme;
+        std::string hostport;
+        std::string path;
+        std::string version;
+
+        bool is_complete() const {
+            return !(method.empty() && scheme.empty() && hostport.empty() &&
+                    path.empty() && version.empty());
+        }
+    };
+
+    struct key_value_block
+    {
+        typedef std::map<std::string, std::string> map_type;
+        typedef map_type::const_iterator const_iterator;
+        typedef map_type::iterator iterator;
+
+        map_type::size_type size() const {
+            return headers.size();
+        }
+
+        bool exists(const std::string& key) const {
+            return headers.find(key) != headers.end();
+        }
+
+        // Insert the lower-cased key.
+        void insert(std::string key, std::string value);
+
+        std::string& operator[] (const std::string& key) {
+            return headers[key];
+        }
+
+        const std::string& operator[] (const std::string& key) const {
+            return headers[key];
+        }
+
+        // Return the number of marshalling bytes this kvblock needs.
+        size_t nbytes(protocol_version) const;
+
+        const_iterator begin() const { return headers.begin(); }
+        const_iterator end() const { return headers.end(); }
+
+        url_components& url() { return components; }
+        const url_components& url() const { return components; }
+
+        url_components components;
+        mutable /* XXX */ map_type headers;
+
+        static key_value_block parse(protocol_version, zstream<decompress>&,
+                const uint8_t *, size_t);
+        static size_t marshall(protocol_version, zstream<compress>&,
+                const key_value_block&, uint8_t *, size_t);
+    };
+
+
+} // namespace spdy
+
+template <typename T> std::string stringof(const T&);
+
+template<> std::string
+stringof<spdy::control_frame_type>(const spdy::control_frame_type&);
+
+template<> std::string
+stringof<spdy::error>(const spdy::error&);
+
+#endif /* SPDY_H_57211D6A_F320_42E3_8205_89E651B4A5DB */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/spdy/zstream.cc b/plugins/experimental/spdy/lib/spdy/zstream.cc
new file mode 100644
index 00000000..3f67b011
--- /dev/null
+++ b/plugins/experimental/spdy/lib/spdy/zstream.cc
@@ -0,0 +1,123 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "zstream.h"
+
+namespace spdy {
+
+const uint8_t dictionary[] =
+"optionsgetheadpostputdeletetraceacceptaccept-charsetaccept-encodingaccept-"
+"languageauthorizationexpectfromhostif-modified-sinceif-matchif-none-matchi"
+"f-rangeif-unmodifiedsincemax-forwardsproxy-authorizationrangerefererteuser"
+"-agent10010120020120220320420520630030130230330430530630740040140240340440"
+"5406407408409410411412413414415416417500501502503504505accept-rangesageeta"
+"glocationproxy-authenticatepublicretry-afterservervarywarningwww-authentic"
+"ateallowcontent-basecontent-encodingcache-controlconnectiondatetrailertran"
+"sfer-encodingupgradeviawarningcontent-languagecontent-lengthcontent-locati"
+"oncontent-md5content-rangecontent-typeetagexpireslast-modifiedset-cookieMo"
+"ndayTuesdayWednesdayThursdayFridaySaturdaySundayJanFebMarAprMayJunJulAugSe"
+"pOctNovDecchunkedtext/htmlimage/pngimage/jpgimage/gifapplication/xmlapplic"
+"ation/xhtmltext/plainpublicmax-agecharset=iso-8859-1utf-8gzipdeflateHTTP/1"
+".1statusversionurl";
+
+#if NOTYET
+unsigned long dictionary_id()
+{
+    unsigned long id;
+
+    id = adler32(0L, Z_NULL, 0);
+    id = adler32(id, dictionary, sizeof(dictionary));
+    return id;
+}
+#endif
+
+static zstream_error map_zerror(int error)
+{
+    const zstream_error z_errors[] =
+    {
+        z_version_error,    // Z_VERSION_ERROR  (-6)
+        z_buffer_error,     // Z_BUF_ERROR      (-5)
+        z_memory_error,     // Z_MEM_ERROR      (-4)
+        z_data_error,       // Z_DATA_ERROR     (-3)
+        z_stream_error,     // Z_STREAM_ERROR   (-2)
+        z_errno,            // Z_ERRNO          (-1)
+        z_ok,               // Z_OK             ( 0)
+        z_stream_end,       // Z_STREAM_END     ( 1)
+        z_need_dict         // Z_NEED_DICT      ( 2)
+    };
+    const zstream_error * z = &z_errors[6];
+    return z[error];
+}
+
+zstream_error decompress::init(z_stream * zstr)
+{
+    return map_zerror(inflateInit(zstr));
+}
+
+zstream_error decompress::transact(z_stream * zstr, int flush)
+{
+    int ret = inflate(zstr, flush);
+    if (ret == Z_NEED_DICT) {
+        // The spec says that the trailing NULL is not included in the
+        // dictionary, but in practice, Chrome does include it.
+        ret = inflateSetDictionary(zstr, dictionary, sizeof(dictionary));
+        if (ret == Z_OK) {
+            ret = inflate(zstr, flush);
+        }
+    }
+
+    return map_zerror(ret);
+}
+
+zstream_error decompress::destroy(z_stream * zstr)
+{
+    return map_zerror(inflateEnd(zstr));
+}
+
+zstream_error compress::init(z_stream * zstr)
+{
+    zstream_error status;
+
+    status = map_zerror(deflateInit(zstr, Z_DEFAULT_COMPRESSION));
+    if (status != z_ok) {
+        return status;
+    }
+
+    return map_zerror(deflateSetDictionary(zstr, dictionary, sizeof(dictionary)));
+}
+
+zstream_error compress::transact(z_stream * zstr, int flush)
+{
+    int ret = deflate(zstr, flush);
+    if (ret == Z_NEED_DICT) {
+        ret = deflateSetDictionary(zstr, dictionary, sizeof(dictionary));
+        if (ret == Z_OK) {
+            ret = deflate(zstr, flush);
+        }
+    }
+
+    return map_zerror(ret);
+}
+
+zstream_error compress::destroy(z_stream * zstr)
+{
+    return map_zerror(deflateEnd(zstr));
+}
+
+} // namespace spdy
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/lib/spdy/zstream.h b/plugins/experimental/spdy/lib/spdy/zstream.h
new file mode 100644
index 00000000..d7ec6fc5
--- /dev/null
+++ b/plugins/experimental/spdy/lib/spdy/zstream.h
@@ -0,0 +1,119 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ZSTREAM_H_EA418AC6_C57B_4597_9748_7C11D04B6586
+#define ZSTREAM_H_EA418AC6_C57B_4597_9748_7C11D04B6586
+
+#include <inttypes.h>
+#include <zlib.h>
+#include <string.h>
+
+namespace spdy {
+
+enum zstream_error
+{
+    z_ok = 0,
+    z_stream_end,
+    z_need_dict,
+    z_errno,
+    z_stream_error,
+    z_data_error,
+    z_memory_error,
+    z_buffer_error,
+    z_version_error
+};
+
+template <typename ZlibMechanism>
+struct zstream : public ZlibMechanism
+{
+    zstream() {
+        memset(&stream, 0, sizeof(stream));
+        stream.zalloc = Z_NULL;
+        stream.zfree = Z_NULL;
+        stream.opaque = Z_NULL;
+        ZlibMechanism::init(&stream);
+    }
+
+    bool drained() const {
+        return stream.avail_in == 0;
+    }
+
+    template <typename T, typename N>
+    void input(T * ptr, N nbytes) {
+        stream.next_in = (uint8_t *)ptr;
+        stream.avail_in = nbytes;
+    }
+
+    // Consume the input without producing any output.
+    zstream_error consume() {
+        zstream_error ret;
+        stream.next_out = (uint8_t *)1;
+        stream.avail_out = 0;
+        ret = ZlibMechanism::transact(&stream, 0);
+        return (ret == z_buffer_error) ? z_ok : ret;
+    }
+
+    // Return the number of output bytes or negative zstream_error on failure.
+    template <typename T, typename N>
+    ssize_t consume(T * ptr, N nbytes, unsigned flags = Z_SYNC_FLUSH) {
+        zstream_error ret;
+        stream.next_out = (uint8_t *)ptr;
+        stream.avail_out = nbytes;
+
+        ret = ZlibMechanism::transact(&stream, flags);
+        if (ret == z_buffer_error) {
+            return 0;
+        }
+
+        if (ret == z_ok || ret == z_stream_end) {
+            // return the number of bytes produced
+            return nbytes - stream.avail_out;
+        }
+
+        return -ret;
+    }
+
+    ~zstream() {
+        ZlibMechanism::destroy(&stream);
+    }
+
+private:
+    zstream(const zstream&); // disable
+    zstream& operator=(const zstream&); // disable
+
+    z_stream stream;
+};
+
+struct decompress
+{
+    zstream_error init(z_stream * zstr);
+    zstream_error transact(z_stream * zstr, int flush);
+    zstream_error destroy(z_stream * zstr);
+};
+
+struct compress
+{
+    zstream_error init(z_stream * zstr);
+    zstream_error transact(z_stream * zstr, int flush);
+    zstream_error destroy(z_stream * zstr);
+};
+
+} // namespace spdy
+
+#endif /* ZSTREAM_H_EA418AC6_C57B_4597_9748_7C11D04B6586 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/protocol.cc b/plugins/experimental/spdy/protocol.cc
new file mode 100644
index 00000000..0dc5c339
--- /dev/null
+++ b/plugins/experimental/spdy/protocol.cc
@@ -0,0 +1,188 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// protocol.cc - Low level routines to write SPDY frames.
+
+#include <ts/ts.h>
+#include <spdy/spdy.h>
+#include <base/logging.h>
+#include "io.h"
+#include "protocol.h"
+
+#include <algorithm>
+#include <vector>
+
+#include "ink_defs.h" // MAX
+
+void
+spdy_send_reset_stream(
+        spdy_io_control *   io,
+        unsigned            stream_id,
+        spdy::error         status)
+{
+    spdy::message_header hdr;
+    spdy::rst_stream_message rst;
+
+    uint8_t     buffer[spdy::message_header::size + spdy::rst_stream_message::size];
+    uint8_t *   ptr = buffer;
+    size_t      nbytes = 0;
+
+    hdr.is_control = true;
+    hdr.control.version = spdy::PROTOCOL_VERSION;
+    hdr.control.type = spdy::CONTROL_RST_STREAM;
+    hdr.flags = 0;
+    hdr.datalen = spdy::rst_stream_message::size;
+    rst.stream_id = stream_id;
+    rst.status_code = status;
+
+    nbytes += spdy::message_header::marshall(hdr, ptr, sizeof(buffer));
+    nbytes += spdy::rst_stream_message::marshall(rst, ptr, sizeof(buffer) - nbytes);
+
+    debug_protocol("[%p/%u] sending %s stream %u with error %s",
+            io, stream_id, cstringof(hdr.control.type), stream_id, cstringof(status));
+    TSIOBufferWrite(io->output.buffer, buffer, nbytes);
+}
+
+void
+spdy_send_syn_reply(
+        spdy_io_stream * stream,
+        const spdy::key_value_block& kvblock)
+{
+    union {
+        spdy::message_header hdr;
+        spdy::syn_reply_message syn;
+    } msg;
+
+    uint8_t     buffer[
+        MAX((unsigned)spdy::message_header::size, (unsigned)spdy::syn_stream_message::size)];
+    size_t      nbytes = 0;
+
+    std::vector<uint8_t> hdrs;
+
+    // Compress the kvblock into a temp buffer before we start. We need to know
+    // the size of this so we can fill in the datalen field. Since there's no
+    // way to go back and rewrite the data length into the TSIOBuffer, we need
+    // to use a temporary copy.
+    hdrs.resize(kvblock.nbytes(stream->version));
+    nbytes = spdy::key_value_block::marshall(stream->version,
+            stream->io->compressor, kvblock, &hdrs[0], hdrs.capacity());
+    hdrs.resize(nbytes);
+
+    msg.hdr.is_control = true;
+    msg.hdr.control.version = stream->version;
+    msg.hdr.control.type = spdy::CONTROL_SYN_REPLY;
+    msg.hdr.flags = 0;
+    msg.hdr.datalen = spdy::syn_reply_message::size(stream->version) + hdrs.size();
+    nbytes = TSIOBufferWrite(stream->io->output.buffer, buffer,
+            spdy::message_header::marshall(msg.hdr, buffer, sizeof(buffer)));
+
+    msg.syn.stream_id = stream->stream_id;
+    nbytes += TSIOBufferWrite(stream->io->output.buffer, buffer,
+            spdy::syn_reply_message::marshall(stream->version,
+                        msg.syn, buffer, sizeof(buffer)));
+
+    nbytes += TSIOBufferWrite(stream->io->output.buffer, &hdrs[0], hdrs.size());
+    debug_protocol("[%p/%u] sending %s hdr.datalen=%u",
+           stream->io, stream->stream_id, cstringof(spdy::CONTROL_SYN_REPLY),
+           (unsigned)msg.hdr.datalen);
+}
+
+void
+spdy_send_data_frame(
+        spdy_io_stream *    stream,
+        unsigned            flags,
+        const void *        ptr,
+        size_t              nbytes)
+{
+    spdy::message_header    hdr;
+    uint8_t                 buffer[spdy::message_header::size];
+    std::vector<uint8_t>    tmp;
+    ssize_t                 ret;
+
+    TSReleaseAssert(nbytes < spdy::MAX_FRAME_LENGTH);
+
+    // XXX If we are compressing the data, we need to make a temporary copy.
+    // When there is an ATS API that will let us rewrite the header, then we
+    // can marshall straight into the TSIOBiffer.
+    if (flags & spdy::FLAG_COMPRESSED) {
+        tmp.resize(nbytes + 64);
+        stream->io->compressor.input(ptr, nbytes);
+        nbytes = 0;
+
+        do {
+            ret = stream->io->compressor.consume(&tmp[nbytes], tmp.size() - nbytes);
+            if (ret > 0) {
+                nbytes += ret;
+            }
+        } while (ret > 0);
+
+        tmp.resize(nbytes);
+    }
+
+    hdr.is_control = false;
+    hdr.flags = flags;
+    hdr.datalen = nbytes;
+    hdr.data.stream_id = stream->stream_id;
+
+    spdy::message_header::marshall(hdr, buffer, sizeof(buffer));
+    TSIOBufferWrite(stream->io->output.buffer, buffer, spdy::message_header::size);
+
+    if (nbytes) {
+        if (flags & spdy::FLAG_COMPRESSED) {
+            TSIOBufferWrite(stream->io->output.buffer, &tmp[0], nbytes);
+        } else {
+            TSIOBufferWrite(stream->io->output.buffer, ptr, nbytes);
+        }
+    }
+
+    debug_protocol("[%p/%u] sending DATA flags=%x hdr.datalen=%u",
+            stream->io, stream->stream_id, flags, (unsigned)hdr.datalen);
+}
+
+void
+spdy_send_ping(
+        spdy_io_control *       io,
+        spdy::protocol_version  version,
+        unsigned                ping_id)
+{
+    union {
+        spdy::message_header    hdr;
+        spdy::ping_message      ping;
+    } msg;
+
+    size_t                  nbytes = 0;
+    uint8_t buffer[spdy::ping_message::size + spdy::message_header::size];
+
+    msg.hdr.is_control = true;
+    msg.hdr.control.version = version;
+    msg.hdr.control.type = spdy::CONTROL_PING;
+    msg.hdr.flags = 0;
+    msg.hdr.datalen = spdy::ping_message::size;
+    nbytes += spdy::message_header::marshall(
+            msg.hdr, buffer + nbytes, sizeof(buffer) - nbytes);
+
+    msg.ping.ping_id = ping_id;
+    nbytes += spdy::ping_message::marshall(
+            msg.ping, buffer + nbytes, sizeof(buffer) - nbytes);
+
+    TSIOBufferWrite(io->output.buffer, buffer, nbytes);
+
+    debug_protocol("[%p] sending PING id=%u", io, msg.ping.ping_id);
+}
+
+/* vim: set sw=4 tw=79 ts=4 et ai : */
diff --git a/plugins/experimental/spdy/protocol.h b/plugins/experimental/spdy/protocol.h
new file mode 100644
index 00000000..2b1a4be5
--- /dev/null
+++ b/plugins/experimental/spdy/protocol.h
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PROTOCOL_H_46E29A3D_9EE6_4C4F_A355_FF42DE19EF18
+#define PROTOCOL_H_46E29A3D_9EE6_4C4F_A355_FF42DE19EF18
+
+void
+spdy_send_reset_stream(
+        spdy_io_control *   io,
+        unsigned            stream_id,
+        spdy::error         status);
+
+void
+spdy_send_syn_reply(
+        spdy_io_stream * stream,
+        const spdy::key_value_block& kvblock);
+
+void
+spdy_send_data_frame(
+        spdy_io_stream *    stream,
+        unsigned            flags,
+        const void *        ptr,
+        size_t              nbytes);
+
+void
+spdy_send_ping(
+        spdy_io_control *       io,
+        spdy::protocol_version  version,
+        unsigned                ping_id);
+
+#endif /* PROTOCOL_H_46E29A3D_9EE6_4C4F_A355_FF42DE19EF18 */
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/spdy.cc b/plugins/experimental/spdy/spdy.cc
new file mode 100644
index 00000000..e81a0805
--- /dev/null
+++ b/plugins/experimental/spdy/spdy.cc
@@ -0,0 +1,395 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#include <spdy/spdy.h>
+#include <base/logging.h>
+
+#include "io.h"
+#include "http.h"
+#include "protocol.h"
+
+#include <getopt.h>
+#include <limits>
+
+static bool use_system_resolver = false;
+
+static int spdy_vconn_io(TSCont, TSEvent, void *);
+
+static void
+recv_rst_stream(
+        const spdy::message_header& header,
+        spdy_io_control *           io,
+        const uint8_t *  ptr)
+{
+    spdy::rst_stream_message rst;
+
+    rst = spdy::rst_stream_message::parse(ptr, header.datalen);
+
+    debug_protocol("[%p/%u] received %s frame stream=%u status_code=%s (%u)",
+            io, rst.stream_id,
+            cstringof(header.control.type), rst.stream_id,
+            cstringof((spdy::error)rst.status_code), rst.status_code);
+
+    io->destroy_stream(rst.stream_id);
+}
+
+static void
+recv_syn_stream(
+        const spdy::message_header& header,
+        spdy_io_control *           io,
+        const uint8_t *  ptr)
+{
+    spdy::syn_stream_message    syn;
+    spdy_io_stream *            stream;
+
+    syn = spdy::syn_stream_message::parse(ptr, header.datalen);
+
+    debug_protocol(
+            "[%p/%u] received %s frame stream=%u associated=%u priority=%u",
+            io, syn.stream_id,
+            cstringof(header.control.type), syn.stream_id,
+            syn.associated_id, syn.priority);
+
+    if (!io->valid_client_stream_id(syn.stream_id)) {
+        debug_protocol("[%p/%u] invalid stream-id %u",
+                io, syn.stream_id, syn.stream_id);
+        spdy_send_reset_stream(io, syn.stream_id, spdy::PROTOCOL_ERROR);
+        return;
+    }
+
+    switch (header.control.version) {
+    case spdy::PROTOCOL_VERSION_2: // fallthru
+    case spdy::PROTOCOL_VERSION_3: break;
+    default:
+        debug_protocol("[%p/%u] bad protocol version %d",
+                io, syn.stream_id, header.control.version);
+        spdy_send_reset_stream(io, syn.stream_id, spdy::PROTOCOL_ERROR);
+        return;
+    }
+
+    spdy::key_value_block kvblock(
+            spdy::key_value_block::parse(
+                    (spdy::protocol_version)header.control.version,
+                    io->decompressor,
+                    ptr + spdy::syn_stream_message::size,
+                    header.datalen - spdy::syn_stream_message::size)
+    );
+
+    if ((stream = io->create_stream(syn.stream_id)) == 0) {
+        debug_protocol("[%p/%u] failed to create stream %u",
+                io, syn.stream_id, syn.stream_id);
+        spdy_send_reset_stream(io, syn.stream_id, spdy::INVALID_STREAM);
+        return;
+    }
+
+    stream->io = io;
+    stream->version = (spdy::protocol_version)header.control.version;
+
+    if (!kvblock.url().is_complete()) {
+        debug_protocol("[%p/%u] incomplete URL", io, stream->stream_id);
+        // 3.2.1; missing URL, protocol error; 400 Bad Request
+        http_send_error(stream, TS_HTTP_STATUS_BAD_REQUEST);
+        spdy_send_reset_stream(io, stream->stream_id, spdy::CANCEL);
+        io->destroy_stream(stream->stream_id);
+        return;
+    }
+
+    spdy_io_stream::open_options options = spdy_io_stream::open_none;
+    if (use_system_resolver) {
+        options = spdy_io_stream::open_with_system_resolver;
+    }
+
+    std::lock_guard<spdy_io_stream::lock_type> lk(stream->lock);
+    if (!stream->open(kvblock, options)) {
+        io->destroy_stream(stream->stream_id);
+    }
+}
+
+static void
+recv_ping(
+        const spdy::message_header& header,
+        spdy_io_control *           io,
+        const uint8_t *  ptr)
+{
+    spdy::ping_message ping;
+
+    ping = spdy::ping_message::parse(ptr, header.datalen);
+
+    debug_protocol("[%p] received PING id=%u", io, ping.ping_id);
+
+    // Client must send even ping-ids. Ignore the odd ones since
+    // we never send them.
+    if ((ping.ping_id % 2) == 0) {
+        return;
+    }
+
+    spdy_send_ping(io, (spdy::protocol_version)header.control.version, ping.ping_id);
+}
+
+static void
+dispatch_spdy_control_frame(
+        const spdy::message_header& header,
+        spdy_io_control *           io,
+        const uint8_t *  ptr)
+{
+    switch (header.control.type) {
+    case spdy::CONTROL_SYN_STREAM:
+        recv_syn_stream(header, io, ptr);
+        break;
+    case spdy::CONTROL_SYN_REPLY:
+    case spdy::CONTROL_RST_STREAM:
+        recv_rst_stream(header, io, ptr);
+        break;
+    case spdy::CONTROL_PING:
+        recv_ping(header, io, ptr);
+        break;
+    case spdy::CONTROL_SETTINGS:
+    case spdy::CONTROL_GOAWAY:
+    case spdy::CONTROL_HEADERS:
+    case spdy::CONTROL_WINDOW_UPDATE:
+        debug_protocol(
+            "[%p] SPDY control frame, version=%u type=%s flags=0x%x, %u bytes",
+            io, header.control.version, cstringof(header.control.type),
+            header.flags, header.datalen);
+        break;
+    default:
+        // SPDY 2.2.1 - MUST ignore unrecognized control frames
+        TSError("[spdy] ignoring invalid control frame type %u", header.control.type);
+    }
+
+    io->reenable();
+}
+
+static size_t
+count_bytes_available(
+        TSIOBufferReader reader)
+{
+    TSIOBufferBlock block;
+    size_t count = 0;
+
+    block = TSIOBufferReaderStart(reader);
+    while (block) {
+        const char * ptr;
+        int64_t nbytes;
+
+        ptr = TSIOBufferBlockReadStart(block, reader, &nbytes);
+        if (ptr && nbytes) {
+            count += nbytes;
+        }
+
+        block = TSIOBufferBlockNext(block);
+    }
+
+    return count;
+}
+
+static void
+consume_spdy_frame(spdy_io_control * io)
+{
+    spdy::message_header    header;
+    TSIOBufferBlock         blk;
+    const uint8_t *         ptr;
+    int64_t                 nbytes;
+
+next_frame:
+
+    blk = TSIOBufferReaderStart(io->input.reader);
+    ptr = (const uint8_t *)TSIOBufferBlockReadStart(blk, io->input.reader, &nbytes);
+    if (!ptr) {
+        // This should not fail because we only try to consume the header when
+        // there are enough bytes to read the header. Experimentally, however,
+        // it does fail. I wonder why.
+        TSError("TSIOBufferBlockReadStart failed unexpectedly");
+        return;
+    }
+
+    if (nbytes < spdy::message_header::size) {
+        // We should never get here, because we check for space before
+        // entering. Unfortunately this does happen :(
+        debug_plugin("short read %" PRId64 " bytes, expected at least %u, real count %zu",
+                nbytes, spdy::message_header::size,
+                count_bytes_available(io->input.reader));
+        return;
+    }
+
+    header = spdy::message_header::parse(ptr, (size_t)nbytes);
+    TSAssert(header.datalen > 0); // XXX
+
+    if (header.is_control) {
+        if (header.control.version != spdy::PROTOCOL_VERSION) {
+            TSError("[spdy] client is version %u, but we implement version %u",
+                header.control.version, spdy::PROTOCOL_VERSION);
+        }
+    } else {
+        debug_protocol("[%p] SPDY data frame, stream=%u flags=0x%x, %u bytes",
+            io, header.data.stream_id, header.flags, header.datalen);
+    }
+
+    if (header.datalen >= spdy::MAX_FRAME_LENGTH) {
+        // XXX puke
+    }
+
+    if (header.datalen <= (nbytes - spdy::message_header::size)) {
+        // We have all the data in-hand ... parse it.
+        io->input.consume(spdy::message_header::size);
+        io->input.consume(header.datalen);
+
+        ptr += spdy::message_header::size;
+
+        if (header.is_control) {
+            dispatch_spdy_control_frame(header, io, ptr);
+        } else {
+            TSError("[spdy] no data frame support yet");
+        }
+
+        if (TSIOBufferReaderAvail(io->input.reader) >= spdy::message_header::size) {
+            goto next_frame;
+        }
+    }
+
+    // Push the high water mark to the end of the frame so that we don't get
+    // called back until we have the whole thing.
+    io->input.watermark(spdy::message_header::size + header.datalen);
+}
+
+static int
+spdy_vconn_io(TSCont contp, TSEvent ev, void * edata)
+{
+    TSVIO               vio = (TSVIO)edata;
+    int                 nbytes;
+    spdy_io_control *   io;
+
+    (void)vio;
+
+    // Experimentally, we recieve the read or write TSVIO pointer as the
+    // callback data.
+    //debug_plugin("received IO event %s, VIO=%p", cstringof(ev), vio);
+
+    switch (ev) {
+    case TS_EVENT_VCONN_READ_READY:
+    case TS_EVENT_VCONN_READ_COMPLETE:
+        io = spdy_io_control::get(contp);
+        nbytes = TSIOBufferReaderAvail(io->input.reader);
+        debug_plugin("received %d bytes", nbytes);
+        if ((unsigned)nbytes >= spdy::message_header::size) {
+            consume_spdy_frame(io);
+        }
+
+        // XXX frame parsing can throw. If it does, best to catch it, log it
+        // and drop the connection.
+        break;
+    case TS_EVENT_VCONN_WRITE_READY:
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+        // No need to handle write events. We have already pushed all the data
+        // we have into the write buffer.
+        break;
+    case TS_EVENT_VCONN_EOS: // fallthru
+    default:
+        if (ev != TS_EVENT_VCONN_EOS) {
+            debug_plugin("unexpected accept event %s", cstringof(ev));
+        }
+        io = spdy_io_control::get(contp);
+        TSVConnClose(io->vconn);
+        release(io);
+    }
+
+    return TS_EVENT_NONE;
+}
+
+static int
+spdy_accept_io(TSCont contp, TSEvent ev, void * edata)
+{
+    TSVConn             vconn = (TSVConn)edata;;
+    spdy_io_control *   io = nullptr;
+
+    switch (ev) {
+    case TS_EVENT_NET_ACCEPT:
+        io = retain(new spdy_io_control(vconn));
+        io->input.watermark(spdy::message_header::size);
+        io->output.watermark(spdy::message_header::size);
+        // XXX is contp leaked here?
+        contp = TSContCreate(spdy_vconn_io, TSMutexCreate());
+        TSContDataSet(contp, io);
+        TSVConnRead(vconn, contp, io->input.buffer, std::numeric_limits<int64_t>::max());
+        TSVConnWrite(vconn, contp, io->output.reader, std::numeric_limits<int64_t>::max());
+        debug_protocol("accepted new SPDY session %p", io);
+        break;
+    default:
+        debug_plugin("unexpected accept event %s", cstringof(ev));
+    }
+
+    return TS_EVENT_NONE;
+}
+
+static int
+spdy_setup_protocol(TSCont /* contp ATS_UNUSED */, TSEvent ev, void * /* edata ATS_UNUSED */)
+{
+  switch (ev) {
+  case TS_EVENT_LIFECYCLE_PORTS_INITIALIZED:
+    TSReleaseAssert(TSNetAcceptNamedProtocol(TSContCreate(spdy_accept_io, TSMutexCreate()),
+                                             TS_NPN_PROTOCOL_SPDY_2) == TS_SUCCESS);
+    debug_plugin("registered named protocol endpoint for %s", TS_NPN_PROTOCOL_SPDY_2);
+    break;
+  default:
+    TSError("[spdy] Protocol registration failed");
+    break;
+  }
+
+  return TS_EVENT_NONE;
+}
+
+extern "C" void
+TSPluginInit(int argc, const char * argv[])
+{
+    static const struct option longopts[] = {
+        { const_cast<char *>("system-resolver"), no_argument, NULL, 's' },
+        { NULL, 0, NULL, 0 }
+    };
+
+    TSPluginRegistrationInfo info;
+
+    info.plugin_name = (char *)"spdy";
+    info.vendor_name = (char *)"Apache Software Foundation";
+    info.support_email = (char *)"dev@trafficserver.apache.org";
+
+    if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+        TSError("[spdy] Plugin registration failed");
+    }
+
+    debug_plugin("initializing");
+
+    for (;;) {
+        switch (getopt_long(argc, (char * const *)argv, "s", longopts, NULL)) {
+        case 's':
+            use_system_resolver = true;
+            break;
+        case -1:
+            goto init;
+        default:
+            TSError("[spdy] usage: spdy.so [--system-resolver]");
+        }
+    }
+
+init:
+    TSLifecycleHookAdd(TS_LIFECYCLE_PORTS_INITIALIZED_HOOK, TSContCreate(spdy_setup_protocol, NULL));
+}
+
+/* vim: set sw=4 tw=79 ts=4 et ai : */
diff --git a/plugins/experimental/spdy/stream.cc b/plugins/experimental/spdy/stream.cc
new file mode 100644
index 00000000..1d6fda93
--- /dev/null
+++ b/plugins/experimental/spdy/stream.cc
@@ -0,0 +1,371 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#include <spdy/spdy.h>
+#include <base/logging.h>
+#include <base/inet.h>
+#include "io.h"
+#include "protocol.h"
+#include "http.h"
+
+#include <netdb.h>
+#include <limits>
+
+// NOTE: Reference counting SPDY streams.
+//
+// First, the primary protocol handler owns a reference count on each
+// SPDY stream. However, this reference count can be released at almost
+// any time when a RST request is received. So when we submit a request
+// that for any asynchronous processing, we must hold an additional
+// reference count in order to keep the stream alive until the request
+// completes.
+//
+// Second, each stream keeps a reference to the SPDY IO control block
+// which has an independent lifetime. This means that when we keep the
+// stream alive (by taking a reference count), we also need to take a
+// reference on the control block.
+
+static int spdy_stream_io(TSCont, TSEvent, void *);
+
+static bool
+IN(const spdy_io_stream * s, spdy_io_stream::http_state_type h)
+{
+    return s->http_state & h;
+}
+
+static void
+ENTER(spdy_io_stream * s, spdy_io_stream::http_state_type h)
+{
+    s->http_state |= h;
+}
+
+static void
+LEAVE(spdy_io_stream * s, spdy_io_stream::http_state_type h)
+{
+    s->http_state &= ~h;
+}
+
+static bool
+initiate_client_request(
+        spdy_io_stream *        stream,
+        const struct sockaddr * addr,
+        TSCont                  contp)
+{
+    TSReleaseAssert(stream->vconn == nullptr);
+
+    stream->vconn = TSHttpConnectWithProtoStack(addr, TSClientProtoStackCreate(TS_PROTO_TLS, TS_PROTO_SPDY, TS_PROTO_NULL));
+    if (stream->vconn) {
+        TSVConnRead(stream->vconn, contp, stream->input.buffer, std::numeric_limits<int64_t>::max());
+        TSVConnWrite(stream->vconn, contp, stream->output.reader, std::numeric_limits<int64_t>::max());
+    }
+
+    return true;
+}
+
+static bool
+write_http_request(spdy_io_stream * stream)
+{
+    spdy_io_buffer      iobuf;
+    scoped_mbuffer      buffer;
+    scoped_http_header  header(buffer.get(), stream->kvblock);
+    int64_t             nwritten = 0;
+
+    if (!header) {
+        return false;
+    }
+
+    debug_http_header(stream, buffer.get(), header);
+
+    // XXX Surely there's a better way to send the HTTP headers than forcing
+    // ATS to reparse what we already have in pre-parsed form?
+    TSHttpHdrPrint(buffer.get(), header, iobuf.buffer);
+
+    TSIOBufferBlock blk = TSIOBufferReaderStart(iobuf.reader);
+    while (blk) {
+        const char *    ptr;
+        int64_t         nbytes;
+
+        ptr = TSIOBufferBlockReadStart(blk, iobuf.reader, &nbytes);
+        if (ptr == nullptr || nbytes == 0) {
+            goto next;
+        }
+
+        nwritten += TSIOBufferWrite(stream->output.buffer, ptr, nbytes);
+
+next:
+        blk = TSIOBufferBlockNext(blk);
+    }
+
+    // XXX is this needed?
+    TSIOBufferProduce(stream->output.buffer, nwritten);
+    return true;
+}
+
+static bool
+read_http_headers(spdy_io_stream * stream)
+{
+    if (TSIsDebugTagSet("spdy.http")) {
+        debug_http("[%p/%u] received %" PRId64 " header bytes",
+                stream, stream->stream_id,
+                TSIOBufferReaderAvail(stream->input.reader));
+    }
+
+    if (stream->hparser.parse(stream->input.reader) < 0) {
+        // XXX handle header parsing error
+        return false;
+    }
+
+    return true;
+}
+
+static int
+spdy_stream_io(TSCont contp, TSEvent ev, void * edata)
+{
+    union {
+        TSHostLookupResult dns;
+        TSVIO vio;
+    } context;
+
+    spdy_io_stream * stream = spdy_io_stream::get(contp);
+
+    debug_http("[%p/%u] received %s event",
+            stream, stream->stream_id, cstringof(ev));
+
+    if (!stream->is_open()) {
+        debug_protocol("[%p/%u] received %s on closed stream",
+                stream->io, stream->stream_id, cstringof(ev));
+        release(stream->io);
+        release(stream);
+        return TS_EVENT_NONE;
+    }
+
+    std::lock_guard<spdy_io_stream::lock_type> lk(stream->lock);
+
+    switch (ev) {
+    case TS_EVENT_HOST_LOOKUP:
+        context.dns = (TSHostLookupResult)edata;
+        stream->action = nullptr;
+
+        if (context.dns) {
+            inet_address addr(TSHostLookupResultAddrGet(context.dns));
+            debug_http("[%p/%u] resolved %s => %s",
+                    stream->io, stream->stream_id,
+                    stream->kvblock.url().hostport.c_str(), cstringof(addr));
+            addr.port() = htons(80); // XXX should be parsed from hostport
+            if (initiate_client_request(stream, addr.saddr(), contp)) {
+                ENTER(stream, spdy_io_stream::http_send_headers);
+                retain(stream);
+                retain(stream->io);
+            }
+
+        } else {
+            // Experimentally, if the DNS lookup fails, web proxies return 502
+            // Bad Gateway.
+            http_send_error(stream, TS_HTTP_STATUS_BAD_GATEWAY);
+        }
+
+        release(stream->io);
+        release(stream);
+        return TS_EVENT_NONE;
+
+    case TS_EVENT_VCONN_WRITE_READY:
+        context.vio = (TSVIO)edata;
+
+        if (IN(stream, spdy_io_stream::http_send_headers)) {
+            // The output VIO is ready. Write the HTTP request to the origin
+            // server and kick the VIO to send it.
+            if (write_http_request(stream)) {
+                TSVIOReenable(context.vio);
+                LEAVE(stream, spdy_io_stream::http_send_headers);
+                ENTER(stream, spdy_io_stream::http_receive_headers);
+            }
+        }
+
+        return TS_EVENT_NONE;
+
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+        debug_http("ignoring %s event", cstringof(ev));
+        return TS_EVENT_NONE;
+
+    case TS_EVENT_VCONN_READ_READY:
+    case TS_EVENT_VCONN_READ_COMPLETE:
+    case TS_EVENT_VCONN_EOS:
+        context.vio = (TSVIO)edata;
+
+        if (IN(stream, spdy_io_stream::http_receive_headers)) {
+            if (read_http_headers(stream)) {
+                LEAVE(stream, spdy_io_stream::http_receive_headers);
+                ENTER(stream, spdy_io_stream::http_send_headers);
+                ENTER(stream, spdy_io_stream::http_receive_content);
+            }
+        }
+
+        // Parsing the headers might have completed and had more data left
+        // over. If there's any data still buffered we can push it out now.
+        if (IN(stream, spdy_io_stream::http_send_headers)) {
+            http_send_response(stream, stream->hparser.mbuffer.get(),
+                        stream->hparser.header.get());
+            LEAVE(stream, spdy_io_stream::http_send_headers);
+        }
+
+        if (IN(stream, spdy_io_stream::http_receive_content)) {
+            http_send_content(stream, stream->input.reader);
+        }
+
+        if (ev == TS_EVENT_VCONN_EOS || ev == TS_EVENT_VCONN_READ_COMPLETE) {
+            stream->http_state = spdy_io_stream::http_closed;
+            spdy_send_data_frame(stream, spdy::FLAG_FIN, nullptr, 0);
+        }
+
+        // Kick the IO control block write VIO to make it send the
+        // SPDY frames we spooled.
+        stream->io->reenable();
+
+        if (IN(stream, spdy_io_stream::http_closed)) {
+            stream->close();
+        }
+
+        return TS_EVENT_NONE;
+
+    default:
+        debug_plugin("unexpected stream event %s", cstringof(ev));
+    }
+
+    return TS_EVENT_NONE;
+}
+
+static bool
+block_and_resolve_host(
+        spdy_io_stream * stream,
+        const std::string& hostport)
+{
+    int error;
+    struct addrinfo * res0 = NULL;
+
+    // XXX split the host and port and stash the port in the resulting sockaddr
+    error = getaddrinfo(hostport.c_str(), "80", NULL, &res0);
+    if (error != 0) {
+        debug_http("failed to resolve hostname '%s', %s",
+                hostport.c_str(), gai_strerror(error));
+        http_send_error(stream, TS_HTTP_STATUS_BAD_GATEWAY);
+        return false;
+    }
+
+    inet_address addr(res0->ai_addr);
+
+    freeaddrinfo(res0);
+
+    debug_http("[%p/%u] resolved %s => %s",
+            stream, stream->stream_id,
+            hostport.c_str(), cstringof(addr));
+    addr.port() = htons(80); // XXX should be parsed from hostport
+
+    if (initiate_client_request(stream, addr.saddr(), stream->continuation)) {
+        ENTER(stream, spdy_io_stream::http_send_headers);
+        return true;
+    }
+
+    return false;
+}
+
+static bool
+initiate_host_resolution(
+        spdy_io_stream * stream,
+        const std::string& hostport)
+{
+    // XXX split the host and port and stash the port in the resulting sockaddr
+    stream->action = TSHostLookup(stream->continuation, hostport.c_str(), hostport.size());
+    if (TSActionDone(stream->action)) {
+        stream->action = NULL;
+    }
+
+    debug_http("resolving hostname '%s'", hostport.c_str());
+    return true;
+}
+
+spdy_io_stream::spdy_io_stream(unsigned s)
+    : stream_id(s), http_state(0), action(nullptr), vconn(nullptr),
+    continuation(nullptr), kvblock(), io(nullptr),
+    input(), output(), hparser()
+{
+    this->continuation = TSContCreate(spdy_stream_io, TSMutexCreate());
+    TSContDataSet(this->continuation, this);
+}
+
+spdy_io_stream::~spdy_io_stream()
+{
+    TSReleaseAssert(this->action == nullptr);
+    TSReleaseAssert(this->vconn == nullptr);
+
+    if (this->continuation) {
+        TSContDestroy(this->continuation);
+    }
+}
+
+void
+spdy_io_stream::close()
+{
+    if (this->action) {
+        TSActionCancel(this->action);
+        this->action = nullptr;
+    }
+
+    if (this->vconn) {
+        TSVConnClose(this->vconn);
+        this->vconn = nullptr;
+    }
+
+    this->http_state = http_closed;
+}
+
+bool
+spdy_io_stream::open(
+        spdy::key_value_block& kv,
+        open_options options)
+{
+    TSReleaseAssert(this->io != nullptr);
+
+    if (this->is_closed()) {
+        this->kvblock = kv;
+
+        retain(this);
+        retain(this->io);
+
+        ENTER(this, spdy_io_stream::http_resolve_host);
+        bool success = (options & open_with_system_resolver)
+            ? block_and_resolve_host(this, kvblock.url().hostport)
+            : initiate_host_resolution(this, kvblock.url().hostport);
+
+        if (!success) {
+            release(this);
+            release(this->io);
+        }
+
+        // On the success path, the resulting continuation callback will
+        // release the refcount we are holding.
+
+        return success;
+    }
+
+    return false;
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/strings.cc b/plugins/experimental/spdy/strings.cc
new file mode 100644
index 00000000..f45005e2
--- /dev/null
+++ b/plugins/experimental/spdy/strings.cc
@@ -0,0 +1,100 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ts/ts.h>
+#include <spdy/spdy.h>
+#include <base/logging.h>
+
+template<> std::string
+stringof<TSEvent>(const TSEvent& ev)
+{
+    static const detail::named_value<unsigned> event_names[] =
+    {
+        { "TS_EVENT_NONE", 0 },
+        { "TS_EVENT_IMMEDIATE", 1 },
+        { "TS_EVENT_TIMEOUT", 2 },
+        { "TS_EVENT_ERROR", 3 },
+        { "TS_EVENT_CONTINUE", 4 },
+        { "TS_EVENT_VCONN_READ_READY", 100 },
+        { "TS_EVENT_VCONN_WRITE_READY", 101 },
+        { "TS_EVENT_VCONN_READ_COMPLETE", 102 },
+        { "TS_EVENT_VCONN_WRITE_COMPLETE", 103 },
+        { "TS_EVENT_VCONN_EOS", 104 },
+        { "TS_EVENT_VCONN_INACTIVITY_TIMEOUT", 105 },
+        { "TS_EVENT_NET_CONNECT", 200 },
+        { "TS_EVENT_NET_CONNECT_FAILED", 201 },
+        { "TS_EVENT_NET_ACCEPT", 202 },
+        { "TS_EVENT_NET_ACCEPT_FAILED", 204 },
+        { "TS_EVENT_INTERNAL_206", 206 },
+        { "TS_EVENT_INTERNAL_207", 207 },
+        { "TS_EVENT_INTERNAL_208", 208 },
+        { "TS_EVENT_INTERNAL_209", 209 },
+        { "TS_EVENT_INTERNAL_210", 210 },
+        { "TS_EVENT_INTERNAL_211", 211 },
+        { "TS_EVENT_INTERNAL_212", 212 },
+        { "TS_EVENT_HOST_LOOKUP", 500 },
+        { "TS_EVENT_CACHE_OPEN_READ", 1102 },
+        { "TS_EVENT_CACHE_OPEN_READ_FAILED", 1103 },
+        { "TS_EVENT_CACHE_OPEN_WRITE", 1108 },
+        { "TS_EVENT_CACHE_OPEN_WRITE_FAILED", 1109 },
+        { "TS_EVENT_CACHE_REMOVE", 1112 },
+        { "TS_EVENT_CACHE_REMOVE_FAILED", 1113 },
+        { "TS_EVENT_CACHE_SCAN", 1120 },
+        { "TS_EVENT_CACHE_SCAN_FAILED", 1121 },
+        { "TS_EVENT_CACHE_SCAN_OBJECT", 1122 },
+        { "TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED", 1123 },
+        { "TS_EVENT_CACHE_SCAN_OPERATION_FAILED", 1124 },
+        { "TS_EVENT_CACHE_SCAN_DONE", 1125 },
+        { "TS_EVENT_CACHE_LOOKUP", 1126 },
+        { "TS_EVENT_CACHE_READ", 1127 },
+        { "TS_EVENT_CACHE_DELETE", 1128 },
+        { "TS_EVENT_CACHE_WRITE", 1129 },
+        { "TS_EVENT_CACHE_WRITE_HEADER", 1130 },
+        { "TS_EVENT_CACHE_CLOSE", 1131 },
+        { "TS_EVENT_CACHE_LOOKUP_READY", 1132 },
+        { "TS_EVENT_CACHE_LOOKUP_COMPLETE", 1133 },
+        { "TS_EVENT_CACHE_READ_READY", 1134 },
+        { "TS_EVENT_CACHE_READ_COMPLETE", 1135 },
+        { "TS_EVENT_INTERNAL_1200", 1200 },
+        { "TS_AIO_EVENT_DONE", 3900 },
+        { "TS_EVENT_HTTP_CONTINUE", 60000 },
+        { "TS_EVENT_HTTP_ERROR", 60001 },
+        { "TS_EVENT_HTTP_READ_REQUEST_HDR", 60002 },
+        { "TS_EVENT_HTTP_OS_DNS", 60003 },
+        { "TS_EVENT_HTTP_SEND_REQUEST_HDR", 60004 },
+        { "TS_EVENT_HTTP_READ_CACHE_HDR", 60005 },
+        { "TS_EVENT_HTTP_READ_RESPONSE_HDR", 60006 },
+        { "TS_EVENT_HTTP_SEND_RESPONSE_HDR", 60007 },
+        { "TS_EVENT_HTTP_REQUEST_TRANSFORM", 60008 },
+        { "TS_EVENT_HTTP_RESPONSE_TRANSFORM", 60009 },
+        { "TS_EVENT_HTTP_SELECT_ALT", 60010 },
+        { "TS_EVENT_HTTP_TXN_START", 60011 },
+        { "TS_EVENT_HTTP_TXN_CLOSE", 60012 },
+        { "TS_EVENT_HTTP_SSN_START", 60013 },
+        { "TS_EVENT_HTTP_SSN_CLOSE", 60014 },
+        { "TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE", 60015 },
+        { "TS_EVENT_HTTP_PRE_REMAP", 60016 },
+        { "TS_EVENT_HTTP_POST_REMAP", 60017 },
+        { "TS_EVENT_MGMT_UPDATE", 60100 },
+        { "TS_EVENT_INTERNAL_60200", 60200 },
+        { "TS_EVENT_INTERNAL_60201", 60201 },
+        { "TS_EVENT_INTERNAL_60202", 60202 },
+    };
+
+    return detail::match(event_names, (unsigned)ev);
+}
diff --git a/plugins/experimental/spdy/tests/stubs.cc b/plugins/experimental/spdy/tests/stubs.cc
new file mode 100644
index 00000000..1bb8c695
--- /dev/null
+++ b/plugins/experimental/spdy/tests/stubs.cc
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+extern "C" int
+TSIsDebugTagSet(const char *)
+{
+    return 1;
+}
+
+extern "C" void
+TSDebug(const char * tag, const char * fmt, ...)
+{
+    if (TSIsDebugTagSet(tag)) {
+        va_list args;
+        va_start(args, fmt);
+        vfprintf(stderr, fmt, args);
+        va_end(args);
+    }
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/spdy/tests/zstream_test.cc b/plugins/experimental/spdy/tests/zstream_test.cc
new file mode 100644
index 00000000..1039a9c6
--- /dev/null
+++ b/plugins/experimental/spdy/tests/zstream_test.cc
@@ -0,0 +1,227 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <spdy/zstream.h>
+#include <spdy/spdy.h>
+#include <assert.h>
+#include <string.h>
+#include <vector>
+#include <array>
+#include <random>
+#include <algorithm>
+
+#define CHUNKSIZE 128
+
+// Test initial state invariants.
+void initstate()
+{
+    spdy::zstream<spdy::compress> zin;
+    spdy::zstream<spdy::decompress> zout;
+
+//    assert(zin.drained());
+//    assert(zout.drained());
+}
+
+// Test basic compress/decompress cycle.
+void roundtrip()
+{
+    ssize_t ret;
+    char text[CHUNKSIZE];
+    char inbuf[CHUNKSIZE];
+    char outbuf[CHUNKSIZE];
+
+    spdy::zstream<spdy::compress> zin;
+    spdy::zstream<spdy::decompress> zout;
+
+    memset(text, 0xaaaaaaaa, sizeof(text));
+    memset(inbuf, 0xaaaaaaaa, sizeof(inbuf));
+
+    memset(outbuf, 0, sizeof(outbuf));
+    zin.input(inbuf, sizeof(inbuf));
+    ret = zin.consume(outbuf, sizeof(outbuf));
+    assert(ret > 0); // no error
+
+    memset(inbuf, 0, sizeof(inbuf));
+    zout.input(outbuf, ret);
+    ret = zout.consume(inbuf, sizeof(inbuf));
+    assert(ret > 0); // no error
+
+    assert(memcmp(text, inbuf, sizeof(inbuf)) == 0);
+}
+
+void shortbuf()
+{
+    ssize_t ret;
+    char outbuf[8];
+    std::minstd_rand0 rand0;
+    spdy::zstream<spdy::compress> zin;
+    std::array<std::minstd_rand0::result_type, CHUNKSIZE> text;
+
+    // random fill so it doesn't compress well
+    std::for_each(text.begin(), text.end(),
+           [&rand0](decltype(text)::value_type& v) { v = rand0(); } );
+
+    zin.input(text.data(), text.size() * sizeof(decltype(text)::value_type));
+    do {
+        ret = zin.consume(outbuf, sizeof(outbuf));
+    } while (ret != 0);
+}
+
+void compress_kvblock()
+{
+    spdy::key_value_block           kvblock;
+    std::vector<uint8_t>            hdrs;
+    std::vector<uint8_t>            check;
+    spdy::zstream<spdy::compress>   compress;
+    spdy::zstream<spdy::decompress> expand;
+    ssize_t nbytes, ret;
+
+    kvblock["key1"] = "value1";
+    kvblock["key2"] = "value2";
+    kvblock["key3"] = "value3";
+    kvblock["key4"] = "value4";
+
+    hdrs.resize(kvblock.nbytes(spdy::PROTOCOL_VERSION_2));
+    nbytes = spdy::key_value_block::marshall(spdy::PROTOCOL_VERSION_2,
+            compress, kvblock, &hdrs[0], hdrs.capacity());
+    hdrs.resize(nbytes);
+
+    nbytes = 0;
+    check.resize(kvblock.nbytes(spdy::PROTOCOL_VERSION_2));
+    expand.input(&hdrs[0], hdrs.size());
+    do {
+        ret = expand.consume(&check[nbytes], check.size() - nbytes);
+        nbytes += ret;
+    } while (ret > 0);
+
+    assert(ret == 0);
+}
+
+void spdy_decompress()
+{
+    const uint8_t pkt[] =
+    {
+        /* SYN_REPLY header
+        0x80, 0x03, 0x00, 0x02, 0x00, 0x00, 0x00, 0xd8,
+        0x00, 0x00, 0x00, 0x01,
+        */
+
+                    0x78, 0x9c, 0x34, 0xcf, 0x41, 0x6b,
+        0xc2, 0x40, 0x10, 0x05, 0xe0, 0x01, 0xd3, 0xe2,
+        0xa1, 0x56, 0xe8, 0xa9, 0x17, 0x61, 0x7f, 0x40,
+        0x37, 0xee, 0x64, 0x89, 0x36, 0x11, 0x0f, 0xc1,
+        0x56, 0x2f, 0xea, 0xa1, 0x49, 0xed, 0x79, 0x93,
+        0x8c, 0x89, 0xa0, 0x1b, 0x49, 0x46, 0x69, 0xfe,
+        0x7d, 0xa5, 0xea, 0xe9, 0xc1, 0xe3, 0xe3, 0xc1,
+        0x83, 0x2e, 0xf4, 0xa2, 0x2c, 0xa3, 0x23, 0xcb,
+        0x2f, 0x63, 0x0b, 0x6a, 0xe0, 0x21, 0x6d, 0xf9,
+        0x12, 0x9d, 0xa8, 0x20, 0xe8, 0x20, 0x6a, 0x78,
+        0x9e, 0x55, 0x96, 0xc9, 0xb2, 0x5c, 0x92, 0x2d,
+        0xb8, 0x04, 0xc7, 0x0b, 0x46, 0x23, 0x78, 0xba,
+        0xb7, 0x49, 0x7b, 0x24, 0x78, 0x65, 0xfa, 0xe5,
+        0x61, 0xc9, 0x87, 0xfd, 0x44, 0x64, 0xa5, 0xa9,
+        0x1b, 0xe2, 0xe9, 0x77, 0x32, 0x97, 0xef, 0xe0,
+        0x7c, 0x18, 0x26, 0x18, 0xfc, 0x50, 0xfe, 0x26,
+        0xb4, 0x12, 0xeb, 0xea, 0x2c, 0x3c, 0x85, 0x28,
+        0x94, 0x1f, 0xaa, 0x20, 0xf4, 0xb5, 0x58, 0xac,
+        0x12, 0xe8, 0x2d, 0x4d, 0xc3, 0x72, 0x55, 0xe5,
+        0xbb, 0xed, 0x8e, 0xf2, 0x9b, 0x56, 0x81, 0x98,
+        0x53, 0x7a, 0xd5, 0x38, 0x0e, 0x51, 0x87, 0xe8,
+        0xff, 0xeb, 0xc7, 0x98, 0xea, 0x33, 0xd5, 0xf0,
+        0x12, 0x25, 0xf1, 0x50, 0xbb, 0xe8, 0xa2, 0x3c,
+        0xd9, 0x86, 0x4d, 0xba, 0x27, 0x70, 0x36, 0xa6,
+        0x6e, 0xa1, 0x7f, 0xbb, 0xf4, 0x69, 0xb3, 0xcb,
+        0xa6, 0x2d, 0xfe, 0x00, 0x00, 0x00, 0xff, 0xff
+    };
+
+
+    char outbuf[16384];
+    ssize_t ret;
+    spdy::zstream<spdy::decompress> zout;
+
+    zout.input(pkt, sizeof(pkt));
+    do {
+        ret = zout.consume(outbuf, sizeof(outbuf));
+    } while (ret > 0);
+
+    assert(ret == 0);
+}
+
+void spdy_headers()
+{
+
+    const uint8_t pkt[] =
+    {
+        /* SYN_STREAM header
+        0x80, 0x02, 0x00, 0x01, 0x01, 0x00, 0x00, 0xde,
+        0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+        0x80, 0x00,
+        */
+                    0x38, 0xea, 0xdf, 0xa2, 0x51, 0xb2,
+        0x62, 0xe0, 0x60, 0xe0, 0x47, 0xcb, 0x5a, 0x0c,
+        0x82, 0x20, 0x8d, 0x3a, 0x50, 0x9d, 0x3a, 0xc5,
+        0x29, 0xc9, 0x19, 0x0c, 0x7c, 0xa8, 0xc1, 0xcf,
+        0xc0, 0x68, 0xc0, 0xc0, 0x02, 0xca, 0x5c, 0x0c,
+        0x5c, 0x25, 0x19, 0x89, 0x85, 0x45, 0x15, 0x05,
+        0x45, 0x29, 0xf9, 0x0c, 0x6c, 0xb9, 0xc0, 0x0c,
+        0x9d, 0x9f, 0xc2, 0xc0, 0xe2, 0xe1, 0xea, 0xe8,
+        0xc2, 0xc0, 0x56, 0x0c, 0x4c, 0x04, 0xb9, 0xa9,
+        0x40, 0x75, 0x25, 0x25, 0x05, 0x0c, 0xcc, 0x20,
+        0xcb, 0x18, 0xf5, 0x19, 0xb8, 0x10, 0x39, 0x84,
+        0xa1, 0xd4, 0x37, 0xbf, 0x2a, 0x33, 0x27, 0x27,
+        0x51, 0xdf, 0x54, 0xcf, 0x40, 0x41, 0xc3, 0x37,
+        0x31, 0x39, 0x33, 0xaf, 0x24, 0xbf, 0x38, 0xc3,
+        0x5a, 0xc1, 0x13, 0x68, 0x57, 0x8e, 0x02, 0x50,
+        0x40, 0xc1, 0x3f, 0x58, 0x21, 0x42, 0xc1, 0xd0,
+        0x20, 0xde, 0x3c, 0xde, 0x48, 0x53, 0xc1, 0x11,
+        0x18, 0x1c, 0xa9, 0xe1, 0xa9, 0x49, 0xde, 0x99,
+        0x25, 0xfa, 0xa6, 0xc6, 0xa6, 0x7a, 0x46, 0x0a,
+        0x00, 0x69, 0x78, 0x7b, 0x84, 0xf8, 0xfa, 0xe8,
+        0x28, 0xe4, 0x64, 0x66, 0xa7, 0x2a, 0xb8, 0xa7,
+        0x26, 0x67, 0xe7, 0x6b, 0x2a, 0x38, 0x67, 0x00,
+        0x33, 0x7e, 0xaa, 0xbe, 0x21, 0xd0, 0x50, 0x3d,
+        0x0b, 0x73, 0x13, 0x3d, 0x43, 0x03, 0x33, 0x85,
+        0xe0, 0xc4, 0xb4, 0xc4, 0xa2, 0x4c, 0x88, 0x26,
+        0x06, 0x76, 0xa8, 0xf7, 0x19, 0x38, 0x60, 0xa1,
+        0x02, 0x00, 0x00, 0x00, 0xff, 0xff
+    };
+
+    char outbuf[16384];
+    ssize_t ret;
+    spdy::zstream<spdy::decompress> zout;
+
+    zout.input(pkt, sizeof(pkt));
+    do {
+        ret = zout.consume(outbuf, sizeof(outbuf));
+    } while (ret > 0);
+
+    assert(ret == 0);
+}
+
+int main(void)
+{
+    initstate();
+    roundtrip();
+    shortbuf();
+    compress_kvblock();
+    spdy_headers();
+    spdy_decompress();
+    return 0;
+}
+
+/* vim: set sw=4 ts=4 tw=79 et : */
diff --git a/plugins/experimental/stale_while_revalidate/Makefile.am b/plugins/experimental/stale_while_revalidate/Makefile.am
new file mode 100644
index 00000000..5bff627e
--- /dev/null
+++ b/plugins/experimental/stale_while_revalidate/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = stale_while_revalidate.la
+stale_while_revalidate_la_SOURCES = stale_while_revalidate.c
+stale_while_revalidate_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/stale_while_revalidate/Makefile.in b/plugins/experimental/stale_while_revalidate/Makefile.in
new file mode 100644
index 00000000..530eecf8
--- /dev/null
+++ b/plugins/experimental/stale_while_revalidate/Makefile.in
@@ -0,0 +1,936 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp README
+subdir = plugins/experimental/stale_while_revalidate
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	  if test -f $$p; then \
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+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+stale_while_revalidate.la: $(stale_while_revalidate_la_OBJECTS) $(stale_while_revalidate_la_DEPENDENCIES) $(EXTRA_stale_while_revalidate_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(stale_while_revalidate_la_LINK) -rpath $(pkglibdir) $(stale_while_revalidate_la_OBJECTS) $(stale_while_revalidate_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stale_while_revalidate.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
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+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/stale_while_revalidate/Makefile.tsxs b/plugins/experimental/stale_while_revalidate/Makefile.tsxs
new file mode 100644
index 00000000..30e651eb
--- /dev/null
+++ b/plugins/experimental/stale_while_revalidate/Makefile.tsxs
@@ -0,0 +1,27 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+PLUGIN=stale_while_revalidate
+TSXS?=tsxs
+
+all:	${PLUGIN}.c
+	$(TSXS) -v -o ${PLUGIN}.so $? 
+
+install:
+	$(TSXS) -i -o ${PLUGIN}.so
+
+clean:
+	rm -f *.lo *.so
diff --git a/plugins/experimental/stale_while_revalidate/README b/plugins/experimental/stale_while_revalidate/README
new file mode 100644
index 00000000..ef9e5aa0
--- /dev/null
+++ b/plugins/experimental/stale_while_revalidate/README
@@ -0,0 +1,26 @@
+This plugin was sponsored by Oregon Health & Science University.
+
+Quick install:
+
+Make sure devel packages for traffic-server are installed.
+Make sure that 'tsxs' is in your path.
+
+	make -f Makefile.tsxs
+	make -f Makefile.tsxs install
+
+Add 'stale_while_revalidate.so' to plugin.config.
+
+Restart traffic-server.
+
+test_server.js is a test server written in JavaScript and
+meant to be run under node.js.
+
+Logging:
+
+You can enable logging by adding parameters to the plugin.config
+line for the plugin.
+
+--log-all                       enable all logging
+--log-stale-while-revalidate    enable logging of stale-while-revalidate
+--log-stale-if-error            enable logging of stale-if-error
+--log-filename <name>           set the filename to log to (<name>.log)
diff --git a/plugins/experimental/stale_while_revalidate/stale_while_revalidate.c b/plugins/experimental/stale_while_revalidate/stale_while_revalidate.c
new file mode 100644
index 00000000..48c9cb84
--- /dev/null
+++ b/plugins/experimental/stale_while_revalidate/stale_while_revalidate.c
@@ -0,0 +1,744 @@
+/** @file
+
+  Implements RFC 5861 (HTTP Cache-Control Extensions for Stale Content)
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+#include <stdbool.h>
+#include <search.h>
+#include <getopt.h>
+#include <arpa/inet.h>
+
+#include "ink_defs.h"
+#include "ts/ts.h"
+#include "ts/experimental.h"
+
+#define PLUGIN_NAME "stale_while_revalidate"
+
+static const char HTTP_VALUE_STALE_WHILE_REVALIDATE[] = "stale-while-revalidate";
+static const char HTTP_VALUE_STALE_IF_ERROR[] = "stale-if-error";
+static const char HTTP_VALUE_STALE_WARNING[] = "110 Response is stale";
+
+typedef struct
+{
+    TSTextLogObject object;
+    bool all, stale_if_error, stale_while_revalidate;
+    char* filename;
+} log_info_t;
+
+typedef struct
+{
+    void *troot;
+    TSMutex troot_mutex;
+    int txn_slot;
+    time_t stale_if_error_override;
+    log_info_t log_info;
+} config_t;
+
+typedef struct
+{
+    time_t date, stale_while_revalidate, stale_on_error, max_age;
+} CachedHeaderInfo;
+
+typedef struct
+{
+    char *effective_url;
+    TSMBuffer buf;
+    TSMLoc http_hdr_loc;
+    struct sockaddr *client_addr;
+} RequestInfo;
+
+typedef struct
+{
+    TSMBuffer buf;
+    TSMLoc http_hdr_loc;
+    TSHttpParser parser;
+    bool parsed;
+    TSHttpStatus status;
+} ResponseInfo;
+
+typedef struct
+{
+    TSHttpTxn txn;
+    TSCont main_cont;
+    bool async_req;
+    TSIOBuffer req_io_buf, resp_io_buf;
+    TSIOBufferReader req_io_buf_reader, resp_io_buf_reader;
+    TSVIO r_vio, w_vio;
+    TSVConn vconn;
+    RequestInfo *req_info;
+    ResponseInfo *resp_info;
+    time_t txn_start;
+    config_t *plugin_config;
+} StateInfo;
+
+static ResponseInfo*
+create_response_info(void)
+{
+    ResponseInfo *resp_info;
+
+    resp_info = (ResponseInfo *) TSmalloc(sizeof(ResponseInfo));
+
+    resp_info->buf = TSMBufferCreate();
+    resp_info->http_hdr_loc = TSHttpHdrCreate(resp_info->buf);
+    resp_info->parser = TSHttpParserCreate();
+    resp_info->parsed = false;
+
+    return resp_info;
+}
+
+static void
+free_response_info(ResponseInfo *resp_info)
+{
+    TSHandleMLocRelease(resp_info->buf, TS_NULL_MLOC, resp_info->http_hdr_loc);
+    TSMBufferDestroy(resp_info->buf);
+    TSHttpParserDestroy(resp_info->parser);
+    TSfree(resp_info);
+}
+
+static RequestInfo*
+create_request_info(TSHttpTxn txn)
+{
+    RequestInfo *req_info;
+    char *url;
+    int url_len;
+    TSMBuffer buf;
+    TSMLoc loc;
+
+    req_info = (RequestInfo *) TSmalloc(sizeof(RequestInfo));
+
+    url = TSHttpTxnEffectiveUrlStringGet(txn, &url_len);
+    req_info->effective_url = TSstrndup(url, url_len);
+    TSfree(url);
+
+    TSHttpTxnClientReqGet(txn, &buf, &loc);
+    req_info->buf = TSMBufferCreate();
+    TSHttpHdrClone(req_info->buf, buf, loc, &(req_info->http_hdr_loc));
+    TSHandleMLocRelease(buf, TS_NULL_MLOC, loc);
+
+    req_info->client_addr = TSmalloc(sizeof(struct sockaddr));
+    memmove((void *) req_info->client_addr, (void *) TSHttpTxnClientAddrGet(txn), sizeof(struct sockaddr));
+
+    return req_info;
+}
+
+static void
+free_request_info(RequestInfo *req_info)
+{
+    TSfree(req_info->effective_url);
+    TSHandleMLocRelease(req_info->buf, TS_NULL_MLOC, req_info->http_hdr_loc);
+    TSMBufferDestroy(req_info->buf);
+    TSfree(req_info->client_addr);
+    TSfree(req_info);
+}
+
+static CachedHeaderInfo*
+get_cached_header_info(TSHttpTxn txn)
+{
+    CachedHeaderInfo* chi;
+    TSMBuffer cr_buf;
+    TSMLoc cr_hdr_loc, cr_date_loc, cr_cache_control_loc, cr_cache_control_dup_loc;
+    int cr_cache_control_count, val_len, i;
+    char *value, *ptr;
+
+    chi = (CachedHeaderInfo *) TSmalloc(sizeof(CachedHeaderInfo));
+    chi->date = 0;
+    chi->max_age = 0;
+    chi->stale_while_revalidate = 0;
+    chi->stale_on_error = 0;
+
+    if (TSHttpTxnCachedRespGet(txn, &cr_buf, &cr_hdr_loc) == TS_SUCCESS)
+    {
+        cr_date_loc = TSMimeHdrFieldFind(cr_buf, cr_hdr_loc, TS_MIME_FIELD_DATE, TS_MIME_LEN_DATE);
+        if (cr_date_loc != TS_NULL_MLOC)
+        {
+            TSDebug(PLUGIN_NAME, "Found a date");
+            chi->date = TSMimeHdrFieldValueDateGet(cr_buf, cr_hdr_loc, cr_date_loc);
+            TSHandleMLocRelease(cr_buf, cr_hdr_loc, cr_date_loc);
+        }
+
+        cr_cache_control_loc = TSMimeHdrFieldFind(cr_buf, cr_hdr_loc, TS_MIME_FIELD_CACHE_CONTROL, TS_MIME_LEN_CACHE_CONTROL);
+
+        while(cr_cache_control_loc != TS_NULL_MLOC)
+        {
+            TSDebug(PLUGIN_NAME, "Found cache-control");
+            cr_cache_control_count = TSMimeHdrFieldValuesCount(cr_buf, cr_hdr_loc, cr_cache_control_loc);
+
+            for (i = 0; i < cr_cache_control_count; i++)
+            {
+                value = (char *) TSMimeHdrFieldValueStringGet(cr_buf, cr_hdr_loc, cr_cache_control_loc, i, &val_len);
+                ptr = value;
+
+                if (strncmp(value, TS_HTTP_VALUE_MAX_AGE, TS_HTTP_LEN_MAX_AGE) == 0)
+                {
+                    TSDebug(PLUGIN_NAME, "Found max-age");
+                    ptr += TS_HTTP_LEN_MAX_AGE;
+                    if (*ptr == '=')
+                    {
+                        ptr++;
+                        chi->max_age = atol(ptr);
+                    }
+                    else
+                    {
+                        ptr = TSstrndup(value, TS_HTTP_LEN_MAX_AGE + 2);
+                        TSDebug(PLUGIN_NAME, "This is what I found: %s", ptr);
+                        TSfree(ptr);
+                    }
+                }
+                else if (strncmp(value, HTTP_VALUE_STALE_WHILE_REVALIDATE, strlen(HTTP_VALUE_STALE_WHILE_REVALIDATE)) == 0)
+                {
+                    TSDebug(PLUGIN_NAME, "Found stale-while-revalidate");
+                    ptr += strlen(HTTP_VALUE_STALE_WHILE_REVALIDATE);
+                    if (*ptr == '=')
+                    {
+                        ptr++;
+                        chi->stale_while_revalidate = atol(ptr);
+                    }
+                }
+                else if (strncmp(value, HTTP_VALUE_STALE_IF_ERROR, strlen(HTTP_VALUE_STALE_IF_ERROR)) == 0)
+                {
+                    TSDebug(PLUGIN_NAME, "Found stale-on-error");
+                    ptr += strlen(HTTP_VALUE_STALE_IF_ERROR);
+                    if (*ptr == '=')
+                    {
+                        ptr++;
+                        chi->stale_on_error = atol(ptr);
+                    }
+                }
+                else
+                {
+                    TSDebug(PLUGIN_NAME, "Unknown field value");
+                }
+            }
+
+            cr_cache_control_dup_loc = TSMimeHdrFieldNextDup(cr_buf, cr_hdr_loc, cr_cache_control_loc);
+            TSHandleMLocRelease(cr_buf, cr_hdr_loc, cr_cache_control_loc);
+            cr_cache_control_loc = cr_cache_control_dup_loc;
+        }
+        TSHandleMLocRelease(cr_buf, TS_NULL_MLOC, cr_hdr_loc);
+    }
+
+    return chi;
+}
+
+static int
+xstrcmp(const void *a, const void *b)
+{
+    return strcmp((const char *) a, (const char *) b);
+}
+
+static void
+parse_response(StateInfo *state)
+{
+    TSIOBufferBlock block;
+    TSParseResult pr = TS_PARSE_CONT;
+    int64_t avail;
+    char *start;
+
+    block = TSIOBufferReaderStart(state->resp_io_buf_reader);
+
+    while ((pr == TS_PARSE_CONT) && (block != NULL))
+    {
+        start = (char *) TSIOBufferBlockReadStart(block, state->resp_io_buf_reader, &avail);
+        if (avail > 0)
+        {
+            pr = TSHttpHdrParseResp(state->resp_info->parser, state->resp_info->buf, state->resp_info->http_hdr_loc, (const char **) &start, (const char *) (start + avail));
+        }
+        block = TSIOBufferBlockNext(block);
+    }
+
+    if (pr != TS_PARSE_CONT)
+    {
+        state->resp_info->status = TSHttpHdrStatusGet(state->resp_info->buf, state->resp_info->http_hdr_loc);
+        state->resp_info->parsed = true;
+        TSDebug(PLUGIN_NAME, "HTTP Status: %d", state->resp_info->status);
+    }
+}
+
+static int
+consume_resource(TSCont cont, TSEvent event ATS_UNUSED, void *edata ATS_UNUSED)
+{
+    StateInfo *state;
+    int64_t avail;
+    TSVConn vconn;
+    TSMLoc url_loc;
+    int lookup_count;
+
+    vconn = (TSVConn) edata;
+    state = (StateInfo *) TSContDataGet(cont);
+
+    switch (event)
+    {
+        case TS_EVENT_VCONN_WRITE_READY:
+            // We shouldn't get here because we specify the exact size of the buffer.
+            TSDebug(PLUGIN_NAME, "Write Ready");
+        case TS_EVENT_VCONN_WRITE_COMPLETE:
+            TSDebug(PLUGIN_NAME, "Write Complete");
+            //TSDebug(PLUGIN_NAME, "TSVConnShutdown()");
+            //TSVConnShutdown(state->vconn, 0, 1);
+            //TSVIOReenable(state->w_vio);
+            break;
+        case TS_EVENT_VCONN_READ_READY:
+            TSDebug(PLUGIN_NAME, "Read Ready");
+
+            avail = TSIOBufferReaderAvail(state->resp_io_buf_reader);
+
+            if ((state->resp_info) && !state->resp_info->parsed)
+            {
+                parse_response(state);
+            }
+
+            // Consume data
+            avail = TSIOBufferReaderAvail(state->resp_io_buf_reader);
+            TSIOBufferReaderConsume(state->resp_io_buf_reader, avail);
+            TSVIONDoneSet(state->r_vio, TSVIONDoneGet(state->r_vio) + avail);
+            TSVIOReenable(state->r_vio);
+            break;
+        case TS_EVENT_VCONN_READ_COMPLETE:
+        case TS_EVENT_VCONN_EOS:
+        case TS_EVENT_VCONN_INACTIVITY_TIMEOUT:
+            if (event == TS_EVENT_VCONN_INACTIVITY_TIMEOUT)
+            {
+                TSDebug(PLUGIN_NAME, "Inactivity Timeout");
+                TSVConnAbort(vconn, TS_VC_CLOSE_ABORT);
+            }
+            else
+            {
+                if (event == TS_EVENT_VCONN_READ_COMPLETE)
+                {
+                    TSDebug(PLUGIN_NAME, "Read Complete");
+                }
+                else if (event == TS_EVENT_VCONN_EOS)
+                {
+                    TSDebug(PLUGIN_NAME, "EOS");
+                }
+                TSVConnClose(state->vconn);
+            }
+
+            avail = TSIOBufferReaderAvail(state->resp_io_buf_reader);
+
+            if ((state->resp_info) && !state->resp_info->parsed)
+            {
+                parse_response(state);
+            }
+
+            // Consume data
+            avail = TSIOBufferReaderAvail(state->resp_io_buf_reader);
+            TSIOBufferReaderConsume(state->resp_io_buf_reader, avail);
+            TSVIONDoneSet(state->r_vio, TSVIONDoneGet(state->r_vio) + avail);
+            if (state->async_req)
+            {
+                TSDebug(PLUGIN_NAME, "Unlock URL");
+                TSMutexLock(state->plugin_config->troot_mutex);
+                tdelete(state->req_info->effective_url, &(state->plugin_config->troot), xstrcmp);
+                TSMutexUnlock(state->plugin_config->troot_mutex);
+            }
+            else
+            {
+                TSDebug(PLUGIN_NAME, "In sync path. setting fresh and re-enabling");
+                TSHttpTxnCacheLookupCountGet(state->txn, &lookup_count);
+                if ((state->resp_info->status == 500) || ((state->resp_info->status >= 502) && (state->resp_info->status <= 504)) || lookup_count > 2)
+                {
+                    TSDebug(PLUGIN_NAME, "Sending stale data as fresh");
+                    if (state->plugin_config->log_info.object && (state->plugin_config->log_info.all || state->plugin_config->log_info.stale_if_error))
+                    {
+                        CachedHeaderInfo *chi = get_cached_header_info(state->txn);
+                        TSTextLogObjectWrite(state->plugin_config->log_info.object, "stale-if-error: %d - %d < %d + %d %s", (int) state->txn_start, (int) chi->date, (int) chi->max_age, (int) chi->stale_on_error, state->req_info->effective_url);
+                        TSfree(chi);
+                    }
+                    TSHttpTxnHookAdd(state->txn, TS_HTTP_SEND_RESPONSE_HDR_HOOK, state->main_cont);
+                    TSHttpTxnCacheLookupStatusSet(state->txn, TS_CACHE_LOOKUP_HIT_FRESH);
+                }
+                else
+                {
+                    TSDebug(PLUGIN_NAME, "Attempting new cache lookup");
+                    TSHttpHdrUrlGet(state->req_info->buf, state->req_info->http_hdr_loc, &url_loc);
+                    TSHttpTxnNewCacheLookupDo(state->txn, state->req_info->buf, url_loc);
+                    TSHandleMLocRelease(state->req_info->buf, state->req_info->http_hdr_loc, url_loc);
+                    // TODO add txn translation hook and pass result along, maybe inside continuation?
+                    //TSHttpTxnHookAdd(state->txn, TS_HTTP_RESPONSE_TRANSFORM_HOOK, TSTransformCreate(replace_transform, state->txn));
+                }
+                TSHttpTxnReenable(state->txn, TS_EVENT_HTTP_CONTINUE);
+            }
+            free_request_info(state->req_info);
+            if (state->resp_info)
+            {
+                free_response_info(state->resp_info);
+            }
+            TSIOBufferReaderFree(state->req_io_buf_reader);
+            TSIOBufferDestroy(state->req_io_buf);
+            TSIOBufferReaderFree(state->resp_io_buf_reader);
+            TSIOBufferDestroy(state->resp_io_buf);
+            TSfree(state);
+            TSContDestroy(cont);
+            break;
+        default:
+            TSError("Unknown event %d.", event);
+            break;
+    }
+
+    return 0;
+}
+
+static int
+fetch_resource(TSCont cont, TSEvent event ATS_UNUSED, void *edata ATS_UNUSED)
+{
+    StateInfo *state;
+    TSCont consume_cont;
+    //struct sockaddr_in client_addr;
+    TSMLoc connection_hdr_loc, connection_hdr_dup_loc;
+
+    state = (StateInfo *) TSContDataGet(cont);
+
+    //li = (RequestInfo *) edata;
+    if (state->async_req)
+    {
+        TSMutexLock(state->plugin_config->troot_mutex);
+        // If already doing async lookup lets just close shop and go home
+        if (tfind(state->req_info->effective_url, &(state->plugin_config->troot), xstrcmp) != NULL)
+        {
+            TSDebug(PLUGIN_NAME, "Looks like an async is already in progress");
+            TSMutexUnlock(state->plugin_config->troot_mutex);
+            free_request_info(state->req_info);
+            TSfree(state);
+        }
+        // Otherwise lets do the lookup!
+        else
+        {
+            // Lock in tree
+            TSDebug(PLUGIN_NAME, "Locking URL");
+            tsearch(state->req_info->effective_url, &(state->plugin_config->troot), xstrcmp);
+            TSMutexUnlock(state->plugin_config->troot_mutex);
+        }
+    }
+
+    if (state)
+    {
+        TSDebug(PLUGIN_NAME, "Lets do the lookup");
+        consume_cont = TSContCreate(consume_resource, NULL);
+        TSContDataSet(consume_cont, (void *) state);
+
+        if (state->async_req)
+        {
+            state->resp_info = NULL;
+        }
+        else
+        {
+            state->resp_info = create_response_info();
+        }
+
+        TSDebug(PLUGIN_NAME, "Set Connection: close");
+        connection_hdr_loc = TSMimeHdrFieldFind(state->req_info->buf, state->req_info->http_hdr_loc, TS_MIME_FIELD_CONNECTION, TS_MIME_LEN_CONNECTION);
+
+        while(connection_hdr_loc != TS_NULL_MLOC)
+        {
+            TSDebug(PLUGIN_NAME, "Found old Connection hdr");
+
+            connection_hdr_dup_loc = TSMimeHdrFieldNextDup(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+            TSMimeHdrFieldRemove(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+            TSMimeHdrFieldDestroy(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+            TSHandleMLocRelease(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+            connection_hdr_loc = connection_hdr_dup_loc;
+        }
+
+        // This seems to have little effect
+        TSDebug(PLUGIN_NAME, "Creating Connection hdr");
+        TSMimeHdrFieldCreateNamed(state->req_info->buf, state->req_info->http_hdr_loc, TS_MIME_FIELD_CONNECTION, TS_MIME_LEN_CONNECTION, &connection_hdr_loc);
+        TSMimeHdrFieldValueStringInsert(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc, -1, TS_HTTP_VALUE_CLOSE, TS_HTTP_LEN_CLOSE);
+        TSMimeHdrFieldAppend(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+        TSHandleMLocRelease(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+
+        /*
+        TSDebug(PLUGIN_NAME, "Creating @stale_while_revalidate header");
+        TSMimeHdrFieldCreateNamed(state->req_info->buf, state->req_info->http_hdr_loc, TS_MIME_FIELD_CONNECTION, TS_MIME_LEN_CONNECTION, &connection_hdr_loc);
+        TSMimeHdrFieldValueStringInsert(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc, -1, TS_HTTP_VALUE_CLOSE, TS_HTTP_LEN_CLOSE);
+        TSMimeHdrFieldAppend(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+        TSHandleMLocRelease(state->req_info->buf, state->req_info->http_hdr_loc, connection_hdr_loc);
+        */
+
+        TSDebug(PLUGIN_NAME, "Create Buffers");
+        state->req_io_buf = TSIOBufferCreate();
+        state->req_io_buf_reader = TSIOBufferReaderAlloc(state->req_io_buf);
+        state->resp_io_buf = TSIOBufferCreate();
+        state->resp_io_buf_reader = TSIOBufferReaderAlloc(state->resp_io_buf);
+
+        TSHttpHdrPrint(state->req_info->buf, state->req_info->http_hdr_loc, state->req_io_buf);
+        TSIOBufferWrite(state->req_io_buf, "\r\n", 2);
+
+        //memmove((void *) &client_addr, (void *) state->req_info->client_addr, sizeof(struct sockaddr));
+        //TSDebug(PLUGIN_NAME, "client_addr: %s:%d", inet_ntoa(client_addr.sin_addr), client_addr.sin_port);
+        state->vconn = TSHttpConnect((struct sockaddr const *) state->req_info->client_addr);
+
+        state->r_vio = TSVConnRead(state->vconn, consume_cont, state->resp_io_buf, INT64_MAX);
+        state->w_vio = TSVConnWrite(state->vconn, consume_cont, state->req_io_buf_reader, TSIOBufferReaderAvail(state->req_io_buf_reader));
+    }
+
+    TSContDestroy(cont);
+
+    return 0;
+}
+
+static int
+main_plugin(TSCont cont, TSEvent event, void *edata)
+{
+    TSHttpTxn txn = (TSHttpTxn) edata;
+    int status, lookup_count;
+    CachedHeaderInfo *chi;
+    TSCont fetch_cont;
+    StateInfo *state;
+    TSMBuffer buf;
+    TSMLoc loc,warn_loc;
+    TSHttpStatus http_status;
+    config_t *plugin_config;
+
+    switch (event)
+    {
+        // Is this the proper event?
+        case TS_EVENT_HTTP_READ_REQUEST_HDR:
+
+            if (TSHttpIsInternalRequest(txn) != TS_SUCCESS)
+            {
+                TSDebug(PLUGIN_NAME, "External Request");
+                plugin_config = (config_t *) TSContDataGet(cont);
+                state = TSmalloc(sizeof(StateInfo));
+                state->plugin_config = plugin_config;
+                time(&state->txn_start);
+                state->req_info = create_request_info(txn);
+                TSHttpTxnArgSet(txn, state->plugin_config->txn_slot, (void *) state);
+                TSHttpTxnHookAdd(txn, TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, cont);
+            }
+            else
+            {
+                TSDebug(PLUGIN_NAME, "Internal Request"); // This is insufficient if there are other plugins using TSHttpConnect
+                TSHttpTxnConfigIntSet(txn, TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS, 1);
+                //TSHttpTxnHookAdd(txn, TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, cont);
+                TSHttpTxnHookAdd(txn, TS_HTTP_READ_RESPONSE_HDR_HOOK, cont);
+                // This might be needed in 3.2.0 to fix a timeout issue
+                //TSHttpTxnConfigIntSet(txn, TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN, 5);
+                //TSHttpTxnConfigIntSet(txn, TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT, 5);
+            }
+
+            TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+            break;
+        case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+            plugin_config = (config_t *) TSContDataGet(cont);
+            state = (StateInfo *) TSHttpTxnArgGet(txn, plugin_config->txn_slot);
+            TSHttpTxnCacheLookupCountGet(txn, &lookup_count);
+            if (TSHttpTxnCacheLookupStatusGet(txn, &status) == TS_SUCCESS)
+            {
+                // Are we stale?
+                if (status == TS_CACHE_LOOKUP_HIT_STALE)
+                {
+                    TSDebug(PLUGIN_NAME, "CacheLookupStatus is STALE");
+                    // Get headers
+                    chi = get_cached_header_info(txn);
+
+                    if (state->plugin_config->stale_if_error_override > chi->stale_on_error)
+                        chi->stale_on_error = state->plugin_config->stale_if_error_override;
+
+                    if ((state->txn_start - chi->date) < (chi->max_age + chi->stale_while_revalidate))
+                    {
+                        TSDebug(PLUGIN_NAME, "Looks like we can return fresh info and validate in the background");
+                        if (state->plugin_config->log_info.object && (state->plugin_config->log_info.all || state->plugin_config->log_info.stale_while_revalidate))
+                            TSTextLogObjectWrite(state->plugin_config->log_info.object, "stale-while-revalidate: %d - %d < %d + %d %s", (int) state->txn_start, (int) chi->date, (int) chi->max_age, (int) chi->stale_while_revalidate, state->req_info->effective_url);
+                        // lookup async
+
+#if (TS_VERSION_NUMBER >= 3003000)
+                        TSHttpTxnConfigIntSet(txn, TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE, 1);
+#endif
+                        // Set warning header
+                        TSHttpTxnHookAdd(txn, TS_HTTP_SEND_RESPONSE_HDR_HOOK, cont);
+
+                        TSDebug(PLUGIN_NAME, "set state as async");
+                        state->async_req = true;
+                        TSHttpTxnCacheLookupStatusSet(txn, TS_CACHE_LOOKUP_HIT_FRESH);
+                        //TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+                        fetch_cont = TSContCreate(fetch_resource, NULL);
+                        TSContDataSet(fetch_cont, (void *) state);
+                        TSContSchedule(fetch_cont, 0, TS_THREAD_POOL_TASK);
+                        TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+                    }
+                    else if ((state->txn_start - chi->date) < (chi->max_age + chi->stale_on_error))
+                    {
+                        TSDebug(PLUGIN_NAME, "Looks like we can return fresh data on 500 error");
+#if (TS_VERSION_NUMBER >= 3003000)
+                        TSHttpTxnConfigIntSet(txn, TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE, 1);
+#endif
+                        //lookup sync
+                        state->async_req = false;
+                        state->txn = txn;
+                        state->main_cont = cont; // we need this for the warning header callback. not sure i like it, but it works.
+                        fetch_cont = TSContCreate(fetch_resource, NULL);
+                        TSContDataSet(fetch_cont, (void *) state);
+                        TSContSchedule(fetch_cont, 0, TS_THREAD_POOL_NET);
+                    }
+                    else
+                    {
+                        TSDebug(PLUGIN_NAME, "No love? now: %d date: %d max-age: %d swr: %d soe: %d", (int) state->txn_start, (int) chi->date, (int) chi->max_age, (int) chi->stale_while_revalidate, (int) chi->stale_on_error);
+                        if (lookup_count == 1)
+                        {
+                            free_request_info(state->req_info);
+                            TSfree(state);
+                        }
+                        TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+                    }
+
+                    TSfree(chi);
+                }
+                else
+                {
+                    TSDebug(PLUGIN_NAME, "Not Stale!");
+                    if (lookup_count == 1)
+                    {
+                        free_request_info(state->req_info);
+                        TSfree(state);
+                    }
+                    TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+                }
+            }
+            else
+            {
+                TSDebug(PLUGIN_NAME, "Could not get CacheLookupStatus");
+                if (lookup_count == 1)
+                {
+                    free_request_info(state->req_info);
+                    TSfree(state);
+                }
+                TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+            }
+            break;
+        case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+            TSHttpTxnServerRespGet(txn, &buf, &loc);
+            http_status = TSHttpHdrStatusGet(buf, loc);
+            if ((http_status == 500) || ((http_status >= 502) && (http_status <= 504))) // 500, 502, 503, or 504
+            {
+                TSDebug(PLUGIN_NAME, "Set non-cachable");
+#if (TS_VERSION_NUMBER >= 3003000)
+                TSHttpTxnServerRespNoStoreSet(txn,1);
+#else
+                TSHttpTxnServerRespNoStore(txn);
+#endif
+            }
+            TSHandleMLocRelease(buf, TS_NULL_MLOC, loc);
+            TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+            break;
+        case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+            TSDebug(PLUGIN_NAME, "set warning header");
+            TSHttpTxnClientRespGet(txn, &buf, &loc);
+            TSMimeHdrFieldCreateNamed(buf, loc, TS_MIME_FIELD_WARNING, TS_MIME_LEN_WARNING, &warn_loc);
+            TSMimeHdrFieldValueStringInsert(buf, loc, warn_loc, -1, HTTP_VALUE_STALE_WARNING, strlen(HTTP_VALUE_STALE_WARNING));
+            TSMimeHdrFieldAppend(buf, loc, warn_loc);
+            TSHandleMLocRelease(buf, loc, warn_loc);
+            TSHandleMLocRelease(buf, TS_NULL_MLOC, loc);
+            TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+            break;
+        default:
+            TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+            break;
+    }
+
+    return 0;
+}
+
+void
+TSPluginInit (int argc, const char *argv[])
+{
+    config_t *plugin_config;
+    TSPluginRegistrationInfo info;
+    TSCont main_cont;
+
+    info.plugin_name = PLUGIN_NAME;
+    info.vendor_name = "Apache Software Foundation";
+    info.support_email = "dev@trafficserver.apache.org";
+
+    if (TSPluginRegister(TS_SDK_VERSION_3_0 , &info) != TS_SUCCESS)
+    {
+        TSError("Plugin registration failed.\n");
+        return;
+    }
+    else
+    {
+        TSDebug(PLUGIN_NAME, "Plugin registration succeeded.\n");
+    }
+
+    plugin_config = TSmalloc(sizeof(config_t));
+
+    plugin_config->troot = NULL;
+    plugin_config->troot_mutex = TSMutexCreate();
+    plugin_config->stale_if_error_override = 0;
+    plugin_config->log_info.object = NULL;
+    plugin_config->log_info.all = false;
+    plugin_config->log_info.stale_if_error = false;
+    plugin_config->log_info.stale_while_revalidate = false;
+    plugin_config->log_info.filename = PLUGIN_NAME;
+
+    if (argc > 1)
+    {
+        int c;
+        optind = 1;
+        static const struct option longopts[] = {
+                { "log-all", no_argument, NULL, 'a' },
+                { "log-stale-while-revalidate", no_argument, NULL, 'r' },
+                { "log-stale-if-error", no_argument, NULL, 'e' },
+                { "log-filename", required_argument, NULL, 'f' },
+                { "force-stale-if-error", required_argument, NULL, 'E' },
+                { NULL, 0, NULL, 0 }
+            };
+
+        while ((c = getopt_long(argc, (char * const*) argv, "aref:E:", longopts, NULL)) != -1)
+        {
+            switch (c)
+            {
+                case 'a':
+                    plugin_config->log_info.all = true;
+                    break;
+                case 'r':
+                    plugin_config->log_info.stale_while_revalidate = true;
+                    break;
+                case 'e':
+                    plugin_config->log_info.stale_if_error = true;
+                    break;
+                case 'f':
+                    plugin_config->log_info.filename = strdup(optarg);
+                    break;
+                case 'E':
+                    plugin_config->stale_if_error_override = atoi(optarg);
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        if (plugin_config->log_info.all || plugin_config->log_info.stale_while_revalidate || plugin_config->log_info.stale_if_error)
+            TSTextLogObjectCreate(plugin_config->log_info.filename, TS_LOG_MODE_ADD_TIMESTAMP, &(plugin_config->log_info.object));
+    }
+
+    // proxy.config.http.insert_age_in_response
+    TSHttpArgIndexReserve(PLUGIN_NAME, "txn state info", &(plugin_config->txn_slot));
+    main_cont = TSContCreate(main_plugin, NULL);
+    TSContDataSet(main_cont, (void *) plugin_config);
+    TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, main_cont);
+
+    TSDebug(PLUGIN_NAME, "Plugin Init Complete.\n");
+}
diff --git a/plugins/experimental/stale_while_revalidate/test_server.js b/plugins/experimental/stale_while_revalidate/test_server.js
new file mode 100755
index 00000000..6aebc27a
--- /dev/null
+++ b/plugins/experimental/stale_while_revalidate/test_server.js
@@ -0,0 +1,42 @@
+#! /usr/bin/env node
+
+/** @file
+
+  Implements Simple HTTP test server for the stale_while_revalidate plugin
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+var http = require('http');
+var url  = require('url');
+
+http.createServer(function (request, response) {
+  console.log(Date());
+  setTimeout( function (req, res) {
+    console.log(req.headers);
+    console.log(url.parse(req.url));
+    res.writeHead(200, {'Content-Type': 'text/plain', 'Cache-Control': 'max-age=5, stale-while-revalidate=55'});
+    //res.writeHead(500, {'Content-Type': 'text/plain', 'Cache-Control': 'max-age=5, stale-if-error=555'});
+    res.end(Date() + '\n');
+    console.log(Date() + '\n');
+  }, 50, request, response);
+}).listen(8081, '127.0.0.1');
+
+console.log('Proxy running at http://127.0.0.1:8080/');
+console.log('Server running at http://127.0.0.1:8081/');
diff --git a/plugins/experimental/ts_lua/Makefile.am b/plugins/experimental/ts_lua/Makefile.am
new file mode 100644
index 00000000..06cc4188
--- /dev/null
+++ b/plugins/experimental/ts_lua/Makefile.am
@@ -0,0 +1,50 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+tslua_la_CPPFLAGS = \
+  $(AM_CPPFLAGS) \
+  -I$(top_srcdir)/lib/luajit/src
+
+pkglib_LTLIBRARIES = tslua.la
+
+#tslua_la_LIBADD = $(top_builddir)/lib/luajit/src/libluajit.a
+
+tslua_la_SOURCES = \
+  ts_lua.c \
+  ts_lua_cached_response.c \
+  ts_lua_client_request.c \
+  ts_lua_client_response.c \
+  ts_lua_context.c \
+  ts_lua_hook.c \
+  ts_lua_http.c \
+  ts_lua_http_intercept.c \
+  ts_lua_log.c \
+  ts_lua_misc.c \
+  ts_lua_server_request.c \
+  ts_lua_server_response.c \
+  ts_lua_transform.c \
+  ts_lua_util.c \
+  ts_lua_remap.c \
+  ts_lua_http_cntl.c \
+  ts_lua_http_config.c \
+  ts_lua_mgmt.c \
+  ts_lua_package.c \
+  ts_lua_string.c \
+  ts_lua_crypto.c
+
+tslua_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/ts_lua/Makefile.in b/plugins/experimental/ts_lua/Makefile.in
new file mode 100644
index 00000000..327e1154
--- /dev/null
+++ b/plugins/experimental/ts_lua/Makefile.in
@@ -0,0 +1,1141 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
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+mkinstalldirs = $(install_sh) -d
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+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
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+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+tslua_la_LIBADD =
+am_tslua_la_OBJECTS = tslua_la-ts_lua.lo \
+	tslua_la-ts_lua_cached_response.lo \
+	tslua_la-ts_lua_client_request.lo \
+	tslua_la-ts_lua_client_response.lo tslua_la-ts_lua_context.lo \
+	tslua_la-ts_lua_hook.lo tslua_la-ts_lua_http.lo \
+	tslua_la-ts_lua_http_intercept.lo tslua_la-ts_lua_log.lo \
+	tslua_la-ts_lua_misc.lo tslua_la-ts_lua_server_request.lo \
+	tslua_la-ts_lua_server_response.lo \
+	tslua_la-ts_lua_transform.lo tslua_la-ts_lua_util.lo \
+	tslua_la-ts_lua_remap.lo tslua_la-ts_lua_http_cntl.lo \
+	tslua_la-ts_lua_http_config.lo tslua_la-ts_lua_mgmt.lo \
+	tslua_la-ts_lua_package.lo tslua_la-ts_lua_string.lo \
+	tslua_la-ts_lua_crypto.lo
+tslua_la_OBJECTS = $(am_tslua_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+tslua_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(tslua_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
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+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
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+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
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+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
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+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
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+DIST_SOURCES = $(tslua_la_SOURCES)
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+  case $$AM_UPDATE_INFO_DIR in \
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+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+tslua_la_CPPFLAGS = \
+  $(AM_CPPFLAGS) \
+  -I$(top_srcdir)/lib/luajit/src
+
+pkglib_LTLIBRARIES = tslua.la
+
+#tslua_la_LIBADD = $(top_builddir)/lib/luajit/src/libluajit.a
+tslua_la_SOURCES = \
+  ts_lua.c \
+  ts_lua_cached_response.c \
+  ts_lua_client_request.c \
+  ts_lua_client_response.c \
+  ts_lua_context.c \
+  ts_lua_hook.c \
+  ts_lua_http.c \
+  ts_lua_http_intercept.c \
+  ts_lua_log.c \
+  ts_lua_misc.c \
+  ts_lua_server_request.c \
+  ts_lua_server_response.c \
+  ts_lua_transform.c \
+  ts_lua_util.c \
+  ts_lua_remap.c \
+  ts_lua_http_cntl.c \
+  ts_lua_http_config.c \
+  ts_lua_mgmt.c \
+  ts_lua_package.c \
+  ts_lua_string.c \
+  ts_lua_crypto.c
+
+tslua_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/ts_lua/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/ts_lua/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+tslua.la: $(tslua_la_OBJECTS) $(tslua_la_DEPENDENCIES) $(EXTRA_tslua_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(tslua_la_LINK) -rpath $(pkglibdir) $(tslua_la_OBJECTS) $(tslua_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_cached_response.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_client_request.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_client_response.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_context.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_crypto.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_hook.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_http.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_http_cntl.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_http_config.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_http_intercept.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_log.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_mgmt.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_misc.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_package.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_remap.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_server_request.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_server_response.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_string.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_transform.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tslua_la-ts_lua_util.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+tslua_la-ts_lua.lo: ts_lua.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tslua_la-ts_lua.lo -MD -MP -MF $(DEPDIR)/tslua_la-ts_lua.Tpo -c -o tslua_la-ts_lua.lo `test -f 'ts_lua.c' || echo '$(srcdir)/'`ts_lua.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tslua_la-ts_lua.Tpo $(DEPDIR)/tslua_la-ts_lua.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ts_lua.c' object='tslua_la-ts_lua.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tslua_la-ts_lua.lo `test -f 'ts_lua.c' || echo '$(srcdir)/'`ts_lua.c
+
+tslua_la-ts_lua_cached_response.lo: ts_lua_cached_response.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tslua_la-ts_lua_cached_response.lo -MD -MP -MF $(DEPDIR)/tslua_la-ts_lua_cached_response.Tpo -c -o tslua_la-ts_lua_cached_response.lo `test -f 'ts_lua_cached_response.c' || echo '$(srcdir)/'`ts_lua_cached_response.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tslua_la-ts_lua_cached_response.Tpo $(DEPDIR)/tslua_la-ts_lua_cached_response.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ts_lua_cached_response.c' object='tslua_la-ts_lua_cached_response.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tslua_la-ts_lua_cached_response.lo `test -f 'ts_lua_cached_response.c' || echo '$(srcdir)/'`ts_lua_cached_response.c
+
+tslua_la-ts_lua_client_request.lo: ts_lua_client_request.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tslua_la-ts_lua_client_request.lo -MD -MP -MF $(DEPDIR)/tslua_la-ts_lua_client_request.Tpo -c -o tslua_la-ts_lua_client_request.lo `test -f 'ts_lua_client_request.c' || echo '$(srcdir)/'`ts_lua_client_request.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tslua_la-ts_lua_client_request.Tpo $(DEPDIR)/tslua_la-ts_lua_client_request.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ts_lua_client_request.c' object='tslua_la-ts_lua_client_request.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tslua_la-ts_lua_package.lo -MD -MP -MF $(DEPDIR)/tslua_la-ts_lua_package.Tpo -c -o tslua_la-ts_lua_package.lo `test -f 'ts_lua_package.c' || echo '$(srcdir)/'`ts_lua_package.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tslua_la-ts_lua_package.Tpo $(DEPDIR)/tslua_la-ts_lua_package.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ts_lua_package.c' object='tslua_la-ts_lua_package.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tslua_la-ts_lua_package.lo `test -f 'ts_lua_package.c' || echo '$(srcdir)/'`ts_lua_package.c
+
+tslua_la-ts_lua_string.lo: ts_lua_string.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tslua_la-ts_lua_string.lo -MD -MP -MF $(DEPDIR)/tslua_la-ts_lua_string.Tpo -c -o tslua_la-ts_lua_string.lo `test -f 'ts_lua_string.c' || echo '$(srcdir)/'`ts_lua_string.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tslua_la-ts_lua_string.Tpo $(DEPDIR)/tslua_la-ts_lua_string.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ts_lua_string.c' object='tslua_la-ts_lua_string.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tslua_la-ts_lua_string.lo `test -f 'ts_lua_string.c' || echo '$(srcdir)/'`ts_lua_string.c
+
+tslua_la-ts_lua_crypto.lo: ts_lua_crypto.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT tslua_la-ts_lua_crypto.lo -MD -MP -MF $(DEPDIR)/tslua_la-ts_lua_crypto.Tpo -c -o tslua_la-ts_lua_crypto.lo `test -f 'ts_lua_crypto.c' || echo '$(srcdir)/'`ts_lua_crypto.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/tslua_la-ts_lua_crypto.Tpo $(DEPDIR)/tslua_la-ts_lua_crypto.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='ts_lua_crypto.c' object='tslua_la-ts_lua_crypto.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(tslua_la_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o tslua_la-ts_lua_crypto.lo `test -f 'ts_lua_crypto.c' || echo '$(srcdir)/'`ts_lua_crypto.c
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/ts_lua/README.md b/plugins/experimental/ts_lua/README.md
new file mode 100644
index 00000000..4e1c4473
--- /dev/null
+++ b/plugins/experimental/ts_lua/README.md
@@ -0,0 +1,5 @@
+Name
+======
+
+ts-lua - Embed the Power of Lua into TrafficServer.
+
diff --git a/plugins/experimental/ts_lua/business/mediaslice.lua b/plugins/experimental/ts_lua/business/mediaslice.lua
new file mode 100644
index 00000000..c118445a
--- /dev/null
+++ b/plugins/experimental/ts_lua/business/mediaslice.lua
@@ -0,0 +1,155 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function media_transform(data, eos)
+    done = 0
+    slen = string.len(data)
+
+    if ts.ctx['fit'] > 0 then
+        if ts.ctx['fit'] + slen >= ts.ctx['len'] then
+            need = ts.ctx['len'] - ts.ctx['fit']
+            done = 1
+        else
+            need = slen
+        end
+
+        ts.ctx['fit'] = ts.ctx['fit'] + need
+        ts.ctx['passed'] = ts.ctx['passed'] + slen
+        return data:sub(1, need), done
+
+    elseif ts.ctx['passed'] + slen >= ts.ctx['offset'] then
+        spos = ts.ctx['offset'] - ts.ctx['passed'] + 1
+        need = ts.ctx['passed'] + slen - ts.ctx['offset']
+        if need >= ts.ctx['len'] then
+            need = ts.ctx['len']
+            done = 1
+        end
+
+        epos = spos + need - 1
+
+        ts.ctx['fit'] = ts.ctx['fit'] + need
+        ts.ctx['passed'] = ts.ctx['passed'] + slen
+
+        return data:sub(spos, epos), done
+    else
+        ts.ctx['passed'] = ts.ctx['passed'] + slen
+        return nil, eos
+    end
+
+end
+
+
+function read_response()
+    http_status = ts.server_response.header.get_status()
+    ts.debug(string.format('server_response status = %d', http_status))
+    if http_status ~= 200 then
+        return
+    end
+
+    ts.http.resp_cache_transformed(0)
+    ts.http.resp_cache_untransformed(1)
+
+    if ts.ctx['transform_add'] == 1 then
+        return
+    end
+
+    ts.hook(TS_LUA_RESPONSE_TRANSFORM, media_transform)
+    ts.ctx['fit'] = 0
+    ts.ctx['passed'] = 0
+end
+
+
+function cache_lookup()
+    status = ts.http.get_cache_lookup_status()
+    ts.debug(string.format('cache lookup status: %d', status))
+    if status ~= TS_LUA_CACHE_LOOKUP_HIT_FRESH and status ~= TS_LUA_CACHE_LOOKUP_HIT_STALE then
+        return
+    end
+
+    http_status = ts.cached_response.header.get_status()
+    ts.debug(string.format('cached_response http status: %d', http_status))
+    if http_status ~= 200 then
+        return
+    end
+
+    ts.http.resp_cache_transformed(0)
+    ts.hook(TS_LUA_RESPONSE_TRANSFORM, media_transform)
+
+    ts.ctx['transform_add'] = 1
+    ts.ctx['fit'] = 0
+    ts.ctx['passed'] = 0
+end
+
+
+function do_remap()
+
+    url = ts.client_request.get_url()
+    ts.debug(string.format('src_url = %s', url))
+
+    param_s = string.find(url, '?')
+    start_s, start_e, start_val = string.find(url, 'start=(%d+)', param_s)
+
+    if start_s ~= nil then
+        end_s, end_e, end_val = string.find(url, 'end=(%d+)', start_e)
+        offset_s, offset_e, offset_val = string.find(url, 'offset=(%d+)', end_e)
+        len_s, len_e, len_val = string.find(url, 'len=(%d+)', offset_e)
+        in_query = true
+    else
+        start_s, start_e, start_val = string.find(url, "/start_(%d+)")
+        end_s, end_e, end_val = string.find(url, "/end_(%d+)", start_e)
+        offset_s, offset_e, offset_val = string.find(url, "/offset_(%d+)", end_e)
+        len_s, len_e, len_val = string.find(url, "/len_(%d+)", offset_e)
+    end
+
+    start_val = tonumber(start_val)
+    end_val = tonumber(end_val)
+    offset_val = tonumber(offset_val)
+    len_val = tonumber(len_val)
+
+    if start_val == nil or end_val == nil or offset_val == nil or len_val == nil then
+        ts.http.set_resp(400, "params invalid\n")
+        return 0
+    end
+
+    if start_val < 0 or end_val < start_val or offset_val < 0 or len_val <= 0 then
+        ts.http.set_resp(400, "params invalid\n")
+        return 0
+    end
+
+    if in_query then
+        slash = url:len() - url:reverse():find("/") + 1
+        cache_url = string.format('%sstart_%d/end_%d/%s', string.sub(url, 1, slash), start_val, end_val, string.sub(url, slash+1, param_s-1))
+    else
+        cache_url = string.format('%s%s', string.sub(url, 1, end_e), string.sub(url, len_e))
+    end
+
+    ts.debug(string.format('cache_url = %s', cache_url))
+
+    ts.http.set_cache_url(cache_url)
+    ts.client_request.header['Range'] = nil
+
+    ts.ctx['start'] = start_val
+    ts.ctx['end'] = end_val
+    ts.ctx['offset'] = offset_val
+    ts.ctx['len'] = len_val
+
+    ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+    ts.hook(TS_LUA_HOOK_READ_RESPONSE_HDR, read_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/business/sethost.lua b/plugins/experimental/ts_lua/business/sethost.lua
new file mode 100644
index 00000000..f4f6bd8c
--- /dev/null
+++ b/plugins/experimental/ts_lua/business/sethost.lua
@@ -0,0 +1,41 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+local HOSTNAME = ''
+
+function __init__(argtb)
+
+    if (#argtb) < 1 then
+        print(argtb[0], 'hostname parameter required!!')
+        return -1
+    end
+
+    HOSTNAME = argtb[1]
+end
+
+function do_remap()
+    local req_host = ts.client_request.header.Host
+
+    if req_host == nil then
+        return 0
+    end
+
+    ts.client_request.header['Host'] = HOSTNAME
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_cache_lookup.lua b/plugins/experimental/ts_lua/example/test_cache_lookup.lua
new file mode 100644
index 00000000..c538c8e7
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_cache_lookup.lua
@@ -0,0 +1,44 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Rhost'] = ts.ctx['rhost']
+    ts.client_response.header['CStatus'] = ts.ctx['cstatus']
+end
+
+
+function cache_lookup()
+    local cache_status = ts.http.get_cache_lookup_status()
+    ts.ctx['cstatus'] = cache_status
+end
+
+
+function do_remap()
+    local req_host = ts.client_request.header.Host
+
+    if req_host == nil then
+        return 0
+    end
+
+    ts.ctx['rhost'] = string.reverse(req_host)
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+    ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_client_socket.lua b/plugins/experimental/ts_lua/example/test_client_socket.lua
new file mode 100644
index 00000000..0ef1a479
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_client_socket.lua
@@ -0,0 +1,40 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['CIP'] = ts.ctx['ip']
+    ts.client_response.header['CPort'] = ts.ctx['port']
+    ts.client_response.header['Now'] = ts.now()
+    return 0
+end
+
+
+function do_remap()
+    req_host = ts.client_request.header.Host
+
+    if req_host == nil then
+        return 0
+    end
+
+    ts.ctx['ip'] = ts.client_request.client_addr.get_ip()
+    ts.ctx['port'] = ts.client_request.client_addr.get_port()
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_closure.lua b/plugins/experimental/ts_lua/example/test_closure.lua
new file mode 100644
index 00000000..edd973dc
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_closure.lua
@@ -0,0 +1,23 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+ts.hook(TS_LUA_HOOK_READ_REQUEST_HDR, 
+    function()
+       ts.debug('read_request')
+       return 0
+    end
+)
+
diff --git a/plugins/experimental/ts_lua/example/test_creq_method.lua b/plugins/experimental/ts_lua/example/test_creq_method.lua
new file mode 100644
index 00000000..dee7d192
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_creq_method.lua
@@ -0,0 +1,40 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Method'] = ts.ctx['method']
+end
+
+
+function do_remap()
+    local method = ts.client_request.get_method()
+
+    if method == nil then
+        return 0
+    end
+
+    ts.ctx['method'] = method
+
+    if method ~= 'GET' then
+        ts.client_request.set_method('GET')
+    end
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_creq_uri.lua b/plugins/experimental/ts_lua/example/test_creq_uri.lua
new file mode 100644
index 00000000..9d00ba5f
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_creq_uri.lua
@@ -0,0 +1,40 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Uri'] = ts.ctx['uri']
+end
+
+
+function do_remap()
+    local uri = ts.client_request.get_uri()
+
+    if uri == nil then
+        return 0
+    end
+
+    ts.ctx['uri'] = uri
+
+    if uri == '/st' then
+        ts.client_request.set_uri('/echo/123456')
+    end
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_creq_uri_args.lua b/plugins/experimental/ts_lua/example/test_creq_uri_args.lua
new file mode 100644
index 00000000..15fad8e3
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_creq_uri_args.lua
@@ -0,0 +1,36 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Args'] = ts.ctx['args']
+end
+
+
+function do_remap()
+    local args = ts.client_request.get_uri_args()
+
+    if args ~= nil then
+        ts.ctx['args'] = args
+        ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+        return 0
+    end
+
+    ts.client_request.set_uri_args('hero=am&skill=burning')
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_global_hdr.lua b/plugins/experimental/ts_lua/example/test_global_hdr.lua
new file mode 100644
index 00000000..012dbcfa
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_global_hdr.lua
@@ -0,0 +1,37 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Rhost'] = ts.ctx['rhost']
+    return 0
+end
+
+
+function do_global_read_request()
+    local req_host = ts.client_request.header.Host
+
+    if req_host == nil then
+        return 0
+    end
+
+    ts.ctx['rhost'] = string.reverse(req_host)
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_global_hook.lua b/plugins/experimental/ts_lua/example/test_global_hook.lua
new file mode 100644
index 00000000..bf71f0cd
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_global_hook.lua
@@ -0,0 +1,88 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+function do_global_txn_start()
+    ts.debug('txn_start')
+
+    return 0
+end 
+
+function do_global_read_request()
+    ts.debug('read_request')
+
+    return 0
+end
+
+function do_global_send_request()
+    ts.debug('send_request')
+
+    return 0
+end
+
+function do_global_read_response()
+    ts.debug('read_response')
+
+    return 0
+end
+
+function do_global_send_response()
+    ts.debug('send_response')
+
+    return 0
+end
+
+function do_global_post_remap()
+    ts.debug('post_remap')
+
+    return 0
+end
+
+function do_global_pre_remap()
+    ts.debug('pre_remap')
+
+    return 0
+end
+
+function do_global_os_dns()
+    ts.debug('os_dns')
+
+    return 0
+end
+
+function do_global_cache_lookup_complete()
+    ts.debug('cache_lookup_complete')
+  
+    return 0
+end
+
+function do_global_select_alt()
+    ts.debug('select_alt')
+
+    return 0
+end
+
+function do_global_read_cache()
+    ts.debug('read_cache')
+
+    return 0
+end
+
+function do_global_txn_close()
+    ts.debug('txn_close')
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_hdr.lua b/plugins/experimental/ts_lua/example/test_hdr.lua
new file mode 100644
index 00000000..b79a63b8
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_hdr.lua
@@ -0,0 +1,37 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Rhost'] = ts.ctx['rhost']
+    return 0
+end
+
+
+function do_remap()
+    local req_host = ts.client_request.header.Host
+
+    if req_host == nil then
+        return 0
+    end
+
+    ts.ctx['rhost'] = string.reverse(req_host)
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_intercept.lua b/plugins/experimental/ts_lua/example/test_intercept.lua
new file mode 100644
index 00000000..730bb396
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_intercept.lua
@@ -0,0 +1,42 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+require 'os'
+
+function send_data()
+    local nt = os.time()..' Zheng.\n'
+
+    local resp =  'HTTP/1.1 200 OK\r\n' ..
+        'Server: ATS/3.2.0\r\n' ..
+        'Content-Type: text/plain\r\n' ..
+        'Content-Length: ' .. string.len(nt) .. '\r\n' ..
+        'Last-Modified: ' .. os.date("%a, %d %b %Y %H:%M:%S GMT", os.time()) .. '\r\n' ..
+        'Connection: keep-alive\r\n' ..
+        'Cache-Control: max-age=7200\r\n' ..
+        'Accept-Ranges: bytes\r\n\r\n' ..
+        nt
+
+    ts.sleep(1)
+    return resp
+end
+
+
+function do_remap()
+    ts.http.intercept(send_data)
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_post.lua b/plugins/experimental/ts_lua/example/test_post.lua
new file mode 100644
index 00000000..c1f16b12
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_post.lua
@@ -0,0 +1,48 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function post_transform(data, eos)
+    local already = ts.ctx['body']
+    ts.ctx['body'] = already..string.upper(data)
+    return data, eos
+end
+
+function send_response()
+    ts.client_response.header['Method'] = ts.ctx['method']
+    if ts.ctx['body'] ~= nil then
+        ts.client_response.header['Body'] = ts.ctx['body']
+    end
+    return 0
+end
+
+
+function do_remap()
+    local req_method = ts.client_request.get_method()
+
+    ts.ctx['method'] = req_method
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    if req_method ~= 'POST' then
+        return 0
+    end
+
+    ts.ctx['body'] = ''
+    ts.hook(TS_LUA_REQUEST_TRANSFORM, post_transform)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_ret_403.lua b/plugins/experimental/ts_lua/example/test_ret_403.lua
new file mode 100644
index 00000000..f90f7b85
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_ret_403.lua
@@ -0,0 +1,38 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function send_response()
+    ts.client_response.header['Now'] = ts.now()
+    return 0
+end
+
+
+function do_remap()
+
+    uri = ts.client_request.get_uri()
+
+    pos, len = string.find(uri, '/css/')
+    if pos ~= nil then
+        ts.http.set_resp(403, "Document access failed :)\n")
+        return 0
+    end
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_server_intercept.lua b/plugins/experimental/ts_lua/example/test_server_intercept.lua
new file mode 100644
index 00000000..ee073c83
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_server_intercept.lua
@@ -0,0 +1,41 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+require 'os'
+
+function send_data()
+    local nt = os.time()..'\n'
+
+    local resp =  'HTTP/1.1 200 OK\r\n' ..
+        'Server: ATS/3.2.0\r\n' ..
+        'Content-Type: text/plain\r\n' ..
+        'Content-Length: ' .. string.len(nt) .. '\r\n' ..
+        'Last-Modified: ' .. os.date("%a, %d %b %Y %H:%M:%S GMT", os.time()) .. '\r\n' ..
+        'Connection: keep-alive\r\n' ..
+        'Cache-Control: max-age=30\r\n' ..
+        'Accept-Ranges: bytes\r\n\r\n' ..
+        nt
+
+    return resp
+end
+
+
+function do_remap()
+    ts.http.server_intercept(send_data)
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_transform.lua b/plugins/experimental/ts_lua/example/test_transform.lua
new file mode 100644
index 00000000..599ab162
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_transform.lua
@@ -0,0 +1,49 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+
+function upper_transform(data, eos)
+    if eos == 1 then
+        return string.upper(data)..'S.H.E.\n', eos
+    else
+        return string.upper(data), eos
+    end
+end
+
+function send_response()
+    ts.client_response.header['SHE'] = ts.ctx['tb']['she']
+    return 0
+end
+
+
+function do_remap()
+    local req_host = ts.client_request.header.Host
+
+    if req_host == nil then
+        return 0
+    end
+
+    ts.ctx['tb'] = {}
+    ts.ctx['tb']['she'] = 'wo ai yu ye hua'
+
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+    ts.hook(TS_LUA_RESPONSE_TRANSFORM, upper_transform)
+
+    ts.http.resp_cache_transformed(0)
+    ts.http.resp_cache_untransformed(1)
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/example/test_txn_hook.lua b/plugins/experimental/ts_lua/example/test_txn_hook.lua
new file mode 100644
index 00000000..e95a4df6
--- /dev/null
+++ b/plugins/experimental/ts_lua/example/test_txn_hook.lua
@@ -0,0 +1,100 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you under the Apache License, Version 2.0 (the
+--  "License"); you may not use this file except in compliance
+--  with the License.  You may obtain a copy of the License at
+--
+--  http://www.apache.org/licenses/LICENSE-2.0
+--
+--  Unless required by applicable law or agreed to in writing, software
+--  distributed under the License is distributed on an "AS IS" BASIS,
+--  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+--  See the License for the specific language governing permissions and
+--  limitations under the License.
+
+function do_global_txn_start()
+    ts.debug('global_txn_start')
+
+    ts.hook(TS_LUA_HOOK_READ_REQUEST_HDR, read_request)
+    ts.hook(TS_LUA_HOOK_SEND_REQUEST_HDR, send_request)
+    ts.hook(TS_LUA_HOOK_SEND_RESPONSE_HDR, send_response)
+    ts.hook(TS_LUA_HOOK_READ_RESPONSE_HDR, read_response)
+    ts.hook(TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE, cache_lookup)
+    ts.hook(TS_LUA_HOOK_PRE_REMAP, pre_remap)
+    ts.hook(TS_LUA_HOOK_POST_REMAP, post_remap)
+    ts.hook(TS_LUA_HOOK_SELECT_ALT, select_alt)
+    ts.hook(TS_LUA_HOOK_OS_DNS, os_dns)
+    ts.hook(TS_LUA_HOOK_READ_CACHE_HDR, read_cache)
+    ts.hook(TS_LUA_HOOK_TXN_CLOSE, txn_close)
+
+    return 0
+end 
+
+function read_request()
+    ts.debug('read_request')
+
+    return 0
+end
+
+function send_request()
+    ts.debug('send_request')
+
+    return 0
+end
+
+function read_response()
+    ts.debug('read_response')
+
+    return 0
+end
+
+function send_response()
+    ts.debug('send_response')
+
+    return 0
+end
+
+function post_remap()
+    ts.debug('post_remap')
+
+    return 0
+end
+
+function pre_remap()
+    ts.debug('pre_remap')
+
+    return 0
+end
+
+function os_dns()
+    ts.debug('os_dns')
+
+    return 0
+end
+
+function cache_lookup()
+    ts.debug('cache_lookup_complete')
+  
+    return 0
+end
+
+function select_alt()
+    ts.debug('select_alt')
+
+    return 0
+end
+
+function read_cache()
+    ts.debug('read_cache')
+
+    return 0
+end
+
+function txn_close()
+    ts.debug('txn_close')
+
+    return 0
+end
+
diff --git a/plugins/experimental/ts_lua/ts_lua.c b/plugins/experimental/ts_lua/ts_lua.c
new file mode 100644
index 00000000..49930b75
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua.c
@@ -0,0 +1,467 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include <string.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include "ts_lua_util.h"
+
+#define TS_LUA_MAX_STATE_COUNT                  512
+
+static uint64_t ts_lua_http_next_id = 0;
+static uint64_t ts_lua_g_http_next_id = 0;
+
+static ts_lua_main_ctx *ts_lua_main_ctx_array;
+static ts_lua_main_ctx *ts_lua_g_main_ctx_array;
+
+
+TSReturnCode
+TSRemapInit(TSRemapInterface * api_info, char *errbuf, int errbuf_size)
+{
+  int ret;
+
+  if (!api_info || api_info->size < sizeof(TSRemapInterface)) {
+    strncpy(errbuf, "[TSRemapInit] - Incorrect size of TSRemapInterface structure", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (ts_lua_main_ctx_array != NULL)
+    return TS_SUCCESS;
+
+  ts_lua_main_ctx_array = TSmalloc(sizeof(ts_lua_main_ctx) * TS_LUA_MAX_STATE_COUNT);
+  memset(ts_lua_main_ctx_array, 0, sizeof(ts_lua_main_ctx) * TS_LUA_MAX_STATE_COUNT);
+
+  ret = ts_lua_create_vm(ts_lua_main_ctx_array, TS_LUA_MAX_STATE_COUNT);
+
+  if (ret) {
+    ts_lua_destroy_vm(ts_lua_main_ctx_array, TS_LUA_MAX_STATE_COUNT);
+    TSfree(ts_lua_main_ctx_array);
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void **ih, char *errbuf, int errbuf_size)
+{
+  int fn;
+  int ret;
+
+  if (argc < 3) {
+    strncpy(errbuf, "[TSRemapNewInstance] - lua script file or string is required !!", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  fn = 1;
+
+  if (argv[2][0] != '/') {
+    fn = 0;
+  } else if (strlen(argv[2]) >= TS_LUA_MAX_SCRIPT_FNAME_LENGTH - 16) {
+    return TS_ERROR;
+  }
+
+  ts_lua_instance_conf *conf = TSmalloc(sizeof(ts_lua_instance_conf));
+  if (!conf) {
+    strncpy(errbuf, "[TSRemapNewInstance] TSmalloc failed!!", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  memset(conf, 0, sizeof(ts_lua_instance_conf));
+
+  if (fn) {
+    sprintf(conf->script, "%s", argv[2]);
+
+  } else {
+    conf->content = argv[2];
+  }
+
+  ts_lua_init_instance(conf);
+
+  ret = ts_lua_add_module(conf, ts_lua_main_ctx_array, TS_LUA_MAX_STATE_COUNT, argc - 2, &argv[2]);
+
+  if (ret != 0) {
+    strncpy(errbuf, "[TSRemapNewInstance] ts_lua_add_module failed", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  *ih = conf;
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void *ih)
+{
+  ts_lua_del_module((ts_lua_instance_conf *) ih, ts_lua_main_ctx_array, TS_LUA_MAX_STATE_COUNT);
+  ts_lua_del_instance(ih);
+  TSfree(ih);
+  return;
+}
+
+TSRemapStatus
+TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo * rri)
+{
+  int ret;
+  uint64_t req_id;
+
+  TSCont contp;
+  lua_State *l;
+
+  ts_lua_main_ctx *main_ctx;
+  ts_lua_http_ctx *http_ctx;
+
+  ts_lua_instance_conf *instance_conf;
+
+  instance_conf = (ts_lua_instance_conf *) ih;
+  req_id = __sync_fetch_and_add(&ts_lua_http_next_id, 1);
+
+
+  main_ctx = &ts_lua_main_ctx_array[req_id % TS_LUA_MAX_STATE_COUNT];
+
+  TSMutexLock(main_ctx->mutexp);
+
+  http_ctx = ts_lua_create_http_ctx(main_ctx, instance_conf);
+
+  http_ctx->txnp = rh;
+  http_ctx->client_request_bufp = rri->requestBufp;
+  http_ctx->client_request_hdrp = rri->requestHdrp;
+  http_ctx->client_request_url = rri->requestUrl;
+  http_ctx->remap = 1;
+  http_ctx->has_hook = 0;
+
+  contp = TSContCreate(ts_lua_http_cont_handler, NULL);
+  TSContDataSet(contp, http_ctx);
+  http_ctx->main_contp = contp;
+
+  l = http_ctx->lua;
+
+  lua_getglobal(l, TS_LUA_FUNCTION_REMAP);
+  if (lua_type(l, -1) != LUA_TFUNCTION) {
+    TSMutexUnlock(main_ctx->mutexp);
+    return TSREMAP_NO_REMAP;
+  }
+
+  if (lua_pcall(l, 0, 1, 0) != 0) {
+    TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+  }
+
+  ret = lua_tointeger(l, -1);
+  lua_pop(l, 1);
+
+  if(http_ctx->has_hook) {
+    TSDebug(TS_LUA_DEBUG_TAG, "[%s] has txn hook -> adding txn close hook handler to release resources", __FUNCTION__);
+    TSHttpTxnHookAdd(rh, TS_HTTP_TXN_CLOSE_HOOK, contp);
+  } else {    
+    TSDebug(TS_LUA_DEBUG_TAG, "[%s] no txn hook -> release resources now", __FUNCTION__);
+    ts_lua_destroy_http_ctx(http_ctx); 
+    TSContDestroy(contp);
+  }
+
+  TSMutexUnlock(main_ctx->mutexp);
+
+  return ret;
+}
+
+static int
+globalHookHandler(TSCont contp, TSEvent event ATS_UNUSED, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc url_loc;
+
+  int ret;
+  uint64_t req_id;
+  TSCont txn_contp;
+
+  lua_State *l;
+
+  ts_lua_main_ctx *main_ctx;
+  ts_lua_http_ctx *http_ctx;
+
+  ts_lua_instance_conf *conf = (ts_lua_instance_conf *) TSContDataGet(contp);
+
+  req_id = __sync_fetch_and_add(&ts_lua_g_http_next_id, 1);
+
+  main_ctx = &ts_lua_g_main_ctx_array[req_id % TS_LUA_MAX_STATE_COUNT];
+
+  TSDebug(TS_LUA_DEBUG_TAG, "[%s] req_id: %" PRId64, __FUNCTION__, req_id);
+  TSMutexLock(main_ctx->mutexp);
+
+  http_ctx = ts_lua_create_http_ctx(main_ctx, conf);
+  http_ctx->txnp = txnp;
+  http_ctx->remap = 0;
+  http_ctx->has_hook = 0;
+
+  if (!http_ctx->client_request_bufp) {
+    if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) == TS_SUCCESS) {
+      http_ctx->client_request_bufp = bufp;
+      http_ctx->client_request_hdrp = hdr_loc;
+
+      if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) == TS_SUCCESS) {
+        http_ctx->client_request_url = url_loc;
+      }
+    }
+  }
+
+  if (!http_ctx->client_request_hdrp) {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  }
+
+  txn_contp = TSContCreate(ts_lua_http_cont_handler, NULL);
+  TSContDataSet(txn_contp, http_ctx);
+  http_ctx->main_contp = txn_contp;
+
+  l = http_ctx->lua;
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_READ_REQUEST);
+    break;
+
+  case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_SEND_REQUEST);
+    break;
+
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_READ_RESPONSE);
+    break;
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_SEND_RESPONSE);
+    break;
+
+  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_CACHE_LOOKUP_COMPLETE);
+    break;
+
+  case TS_EVENT_HTTP_TXN_START:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_TXN_START);
+    break;
+
+  case TS_EVENT_HTTP_PRE_REMAP:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_PRE_REMAP);
+    break;
+
+  case TS_EVENT_HTTP_POST_REMAP:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_POST_REMAP);
+    break;
+
+  case TS_EVENT_HTTP_SELECT_ALT:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_SELECT_ALT);
+    break;
+
+  case TS_EVENT_HTTP_OS_DNS:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_OS_DNS);
+    break;
+
+  case TS_EVENT_HTTP_READ_CACHE_HDR:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_READ_CACHE);
+    break;
+
+  case TS_EVENT_HTTP_TXN_CLOSE:
+    lua_getglobal(l, TS_LUA_FUNCTION_G_TXN_CLOSE);
+    break;
+
+  default:
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+    break;
+  }
+
+  if (lua_type(l, -1) != LUA_TFUNCTION) {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    lua_pop(l, 1);
+    return 0;
+  }
+
+  if (lua_pcall(l, 0, 1, 0) != 0) {
+    TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+  }
+
+  ret = lua_tointeger(l, -1);
+  lua_pop(l, 1);
+
+  if(http_ctx->has_hook) {
+    // add a hook to release resources for context
+    TSDebug(TS_LUA_DEBUG_TAG, "[%s] has txn hook -> adding txn close hook handler to release resources", __FUNCTION__);
+    TSHttpTxnHookAdd(txnp, TS_HTTP_TXN_CLOSE_HOOK, txn_contp);
+  } else {
+    TSDebug(TS_LUA_DEBUG_TAG, "[%s] no txn hook -> release resources now", __FUNCTION__);
+    ts_lua_destroy_http_ctx(http_ctx);
+    TSContDestroy(txn_contp);
+  }
+
+  TSMutexUnlock(main_ctx->mutexp);
+
+  if(ret) {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+  } else {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  }
+
+  return 0;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  int ret = 0;
+  ts_lua_g_main_ctx_array = TSmalloc(sizeof(ts_lua_main_ctx) * TS_LUA_MAX_STATE_COUNT);
+  memset(ts_lua_g_main_ctx_array, 0, sizeof(ts_lua_main_ctx) * TS_LUA_MAX_STATE_COUNT);
+
+  ret = ts_lua_create_vm(ts_lua_g_main_ctx_array, TS_LUA_MAX_STATE_COUNT);
+
+  if (ret) {
+    ts_lua_destroy_vm(ts_lua_g_main_ctx_array, TS_LUA_MAX_STATE_COUNT);
+    TSfree(ts_lua_g_main_ctx_array);
+    return;
+  }
+
+  if (argc < 2) {
+    TSError("[%s] lua script file required !!", __FUNCTION__);
+    return;
+  }
+
+  if (strlen(argv[1]) >= TS_LUA_MAX_SCRIPT_FNAME_LENGTH - 16) {
+    TSError("[%s] lua script file name too long !!", __FUNCTION__);
+    return;
+  }
+
+  ts_lua_instance_conf *conf = TSmalloc(sizeof(ts_lua_instance_conf));
+  if (!conf) {
+    TSError("[%s] TSmalloc failed !!", __FUNCTION__);
+    return;
+  }
+  memset(conf, 0, sizeof(ts_lua_instance_conf));
+
+  sprintf(conf->script, "%s", argv[1]);
+
+  ts_lua_init_instance(conf);
+
+  ret = ts_lua_add_module(conf, ts_lua_g_main_ctx_array, TS_LUA_MAX_STATE_COUNT, argc - 1, (char **) &argv[1]);
+
+  if (ret != 0) {
+    TSError("[%s] ts_lua_add_module failed", __FUNCTION__);
+    return;
+  }
+
+  TSCont global_contp = TSContCreate(globalHookHandler, NULL);
+  if (!global_contp) {
+    TSError("[%s] could not create transaction start continuation", __FUNCTION__);
+    return;
+  }
+  TSContDataSet(global_contp, conf);
+
+  //adding hook based on whether the lua global function exists.
+  ts_lua_main_ctx *main_ctx = &ts_lua_g_main_ctx_array[0];
+  ts_lua_http_ctx *http_ctx = ts_lua_create_http_ctx(main_ctx, conf);
+  lua_State *l = http_ctx->lua;
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_SEND_REQUEST);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_SEND_REQUEST_HDR_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "send_request_hdr_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_READ_RESPONSE);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "read_response_hdr_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_SEND_RESPONSE);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_SEND_RESPONSE_HDR_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "send_response_hdr_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_CACHE_LOOKUP_COMPLETE);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "cache_lookup_complete_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_READ_REQUEST);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "read_request_hdr_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_TXN_START);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_TXN_START_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "txn_start_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_PRE_REMAP);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_PRE_REMAP_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "pre_remap_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_POST_REMAP);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_POST_REMAP_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "post_remap_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_SELECT_ALT);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_SELECT_ALT_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "select_alt_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_OS_DNS);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "os_dns_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_READ_CACHE);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_READ_CACHE_HDR_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "read_cache_hdr_hook added");
+  }
+  lua_pop(l, 1);
+
+  lua_getglobal(l, TS_LUA_FUNCTION_G_TXN_CLOSE);
+  if (lua_type(l, -1) == LUA_TFUNCTION) {
+    TSHttpHookAdd(TS_HTTP_TXN_CLOSE_HOOK, global_contp);
+    TSDebug(TS_LUA_DEBUG_TAG, "txn_close_hook added");
+  }
+  lua_pop(l, 1);
+
+  ts_lua_destroy_http_ctx(http_ctx);
+
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_cached_response.c b/plugins/experimental/ts_lua/ts_lua_cached_response.c
new file mode 100644
index 00000000..3de9925b
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_cached_response.c
@@ -0,0 +1,223 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+
+#define TS_LUA_CHECK_CACHED_RESPONSE_HDR(http_ctx)   \
+do {                                                 \
+    TSMBuffer       bufp;                            \
+    TSMLoc          hdrp;                            \
+    if (!http_ctx->cached_response_hdrp) {           \
+        if (TSHttpTxnCachedRespGet(http_ctx->txnp,   \
+                    &bufp,                           \
+                    &hdrp) != TS_SUCCESS) {          \
+            return 0;                                \
+        }                                            \
+        http_ctx->cached_response_bufp = TSMBufferCreate();                                         \
+        http_ctx->cached_response_hdrp = TSHttpHdrCreate(http_ctx->cached_response_bufp);           \
+        TSHttpHdrCopy(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, bufp, hdrp);  \
+        TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdrp);                                              \
+    }   \
+} while(0)
+
+
+static void ts_lua_inject_cached_response_misc_api(lua_State * L);
+static void ts_lua_inject_cached_response_header_api(lua_State * L);
+static void ts_lua_inject_cached_response_headers_api(lua_State * L);
+
+static int ts_lua_cached_response_header_get(lua_State * L);
+static int ts_lua_cached_response_header_set(lua_State * L);
+static int ts_lua_cached_response_get_headers(lua_State * L);
+
+static int ts_lua_cached_response_get_status(lua_State * L);
+static int ts_lua_cached_response_get_version(lua_State * L);
+
+
+void
+ts_lua_inject_cached_response_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_cached_response_header_api(L);
+  ts_lua_inject_cached_response_headers_api(L);
+  ts_lua_inject_cached_response_misc_api(L);
+
+
+  lua_setfield(L, -2, "cached_response");
+}
+
+static void
+ts_lua_inject_cached_response_header_api(lua_State * L)
+{
+  lua_newtable(L);              /*  .header */
+
+  lua_createtable(L, 0, 2);
+
+  lua_pushcfunction(L, ts_lua_cached_response_header_get);
+  lua_setfield(L, -2, "__index");
+  lua_pushcfunction(L, ts_lua_cached_response_header_set);
+  lua_setfield(L, -2, "__newindex");
+
+  lua_setmetatable(L, -2);
+
+  lua_setfield(L, -2, "header");
+
+  return;
+}
+
+static void
+ts_lua_inject_cached_response_headers_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_cached_response_get_headers);
+  lua_setfield(L, -2, "get_headers");
+}
+
+static void
+ts_lua_inject_cached_response_misc_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_cached_response_get_status);
+  lua_setfield(L, -2, "get_status");
+
+  lua_pushcfunction(L, ts_lua_cached_response_get_version);
+  lua_setfield(L, -2, "get_version");
+}
+
+static int
+ts_lua_cached_response_get_status(lua_State * L)
+{
+  int status;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CACHED_RESPONSE_HDR(http_ctx);
+
+  status = TSHttpHdrStatusGet(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp);
+
+  lua_pushinteger(L, status);
+
+  return 1;
+}
+
+static int
+ts_lua_cached_response_get_version(lua_State * L)
+{
+  int version;
+  char buf[32];
+  int n;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CACHED_RESPONSE_HDR(http_ctx);
+
+  version = TSHttpHdrVersionGet(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp);
+
+  n = snprintf(buf, sizeof(buf) - 1, "%d.%d", TS_HTTP_MAJOR(version), TS_HTTP_MINOR(version));
+  lua_pushlstring(L, buf, n);
+
+  return 1;
+}
+
+static int
+ts_lua_cached_response_header_get(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  int val_len;
+  size_t key_len;
+
+  TSMLoc field_loc;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  /*   we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+
+  TS_LUA_CHECK_CACHED_RESPONSE_HDR(http_ctx);
+
+  if (key && key_len) {
+    field_loc = TSMimeHdrFieldFind(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, key, key_len);
+
+    if (field_loc) {
+      val =
+        TSMimeHdrFieldValueStringGet(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, field_loc, -1,
+                                     &val_len);
+      lua_pushlstring(L, val, val_len);
+      TSHandleMLocRelease(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, field_loc);
+
+    } else {
+      lua_pushnil(L);
+    }
+
+  } else {
+    lua_pushnil(L);
+  }
+  return 1;
+}
+
+static int
+ts_lua_cached_response_header_set(lua_State * L ATS_UNUSED)
+{
+  return 0;
+}
+
+static int
+ts_lua_cached_response_get_headers(lua_State * L)
+{
+  const char *name;
+  const char *value;
+  int name_len;
+  int value_len;
+  TSMLoc field_loc;
+  TSMLoc next_field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CACHED_RESPONSE_HDR(http_ctx);
+
+  lua_newtable(L);
+
+  field_loc = TSMimeHdrFieldGet(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, 0);
+
+  while (field_loc) {
+
+    name = TSMimeHdrFieldNameGet(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, field_loc, &name_len);
+    if (name && name_len) {
+
+      value =
+        TSMimeHdrFieldValueStringGet(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, field_loc, -1,
+                                     &value_len);
+      lua_pushlstring(L, name, name_len);
+      lua_pushlstring(L, value, value_len);
+      lua_rawset(L, -3);
+    }
+
+    next_field_loc = TSMimeHdrFieldNext(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, field_loc);
+    TSHandleMLocRelease(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp, field_loc);
+    field_loc = next_field_loc;
+  }
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_cached_response.h b/plugins/experimental/ts_lua/ts_lua_cached_response.h
new file mode 100644
index 00000000..6865ba58
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_cached_response.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_CACHED_RESPONSE_H
+#define _TS_LUA_CACHED_RESPONSE_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_cached_response_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_client_request.c b/plugins/experimental/ts_lua/ts_lua_client_request.c
new file mode 100644
index 00000000..d45e6e05
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_client_request.c
@@ -0,0 +1,784 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ink_platform.h"
+#include <netinet/in.h>
+#include "ts_lua_util.h"
+
+static void ts_lua_inject_client_request_client_addr_api(lua_State * L);
+static void ts_lua_inject_client_request_server_addr_api(lua_State * L);
+
+static int ts_lua_client_request_header_get(lua_State * L);
+static int ts_lua_client_request_header_set(lua_State * L);
+static int ts_lua_client_request_get_headers(lua_State * L);
+static int ts_lua_client_request_get_url(lua_State * L);
+static int ts_lua_client_request_get_pristine_url(lua_State * L);
+static int ts_lua_client_request_get_url_host(lua_State * L);
+static int ts_lua_client_request_set_url_host(lua_State * L);
+static int ts_lua_client_request_get_url_port(lua_State * L);
+static int ts_lua_client_request_set_url_port(lua_State * L);
+static int ts_lua_client_request_get_url_scheme(lua_State * L);
+static int ts_lua_client_request_set_url_scheme(lua_State * L);
+
+static int ts_lua_client_request_get_uri(lua_State * L);
+static int ts_lua_client_request_set_uri(lua_State * L);
+static int ts_lua_client_request_set_uri_args(lua_State * L);
+static int ts_lua_client_request_get_uri_args(lua_State * L);
+static int ts_lua_client_request_get_method(lua_State * L);
+static int ts_lua_client_request_set_method(lua_State * L);
+static int ts_lua_client_request_get_version(lua_State * L);
+static int ts_lua_client_request_set_version(lua_State * L);
+
+static int ts_lua_client_request_get_body_size(lua_State * L);
+static int ts_lua_client_request_get_header_size(lua_State * L);
+
+static void ts_lua_inject_client_request_socket_api(lua_State * L);
+static void ts_lua_inject_client_request_header_api(lua_State * L);
+static void ts_lua_inject_client_request_headers_api(lua_State * L);
+static void ts_lua_inject_client_request_url_api(lua_State * L);
+static void ts_lua_inject_client_request_uri_api(lua_State * L);
+static void ts_lua_inject_client_request_args_api(lua_State * L);
+static void ts_lua_inject_client_request_method_api(lua_State * L);
+static void ts_lua_inject_client_request_version_api(lua_State * L);
+static void ts_lua_inject_client_request_body_size_api(lua_State * L);
+static void ts_lua_inject_client_request_header_size_api(lua_State * L);
+
+
+static int ts_lua_client_request_client_addr_get_ip(lua_State * L);
+static int ts_lua_client_request_client_addr_get_port(lua_State * L);
+static int ts_lua_client_request_client_addr_get_addr(lua_State * L);
+
+
+void
+ts_lua_inject_client_request_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_client_request_socket_api(L);
+  ts_lua_inject_client_request_header_api(L);
+  ts_lua_inject_client_request_headers_api(L);
+  ts_lua_inject_client_request_url_api(L);
+  ts_lua_inject_client_request_uri_api(L);
+  ts_lua_inject_client_request_args_api(L);
+  ts_lua_inject_client_request_method_api(L);
+  ts_lua_inject_client_request_version_api(L);
+  ts_lua_inject_client_request_body_size_api(L);
+  ts_lua_inject_client_request_header_size_api(L);
+
+  lua_setfield(L, -2, "client_request");
+}
+
+static void
+ts_lua_inject_client_request_socket_api(lua_State * L)
+{
+  ts_lua_inject_client_request_client_addr_api(L);
+  ts_lua_inject_client_request_server_addr_api(L);
+}
+
+static void
+ts_lua_inject_client_request_client_addr_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  lua_pushcfunction(L, ts_lua_client_request_client_addr_get_ip);
+  lua_setfield(L, -2, "get_ip");
+
+  lua_pushcfunction(L, ts_lua_client_request_client_addr_get_port);
+  lua_setfield(L, -2, "get_port");
+
+  lua_pushcfunction(L, ts_lua_client_request_client_addr_get_addr);
+  lua_setfield(L, -2, "get_addr");
+
+  lua_setfield(L, -2, "client_addr");
+}
+
+static void
+ts_lua_inject_client_request_server_addr_api(lua_State * L ATS_UNUSED)
+{
+  return;
+}
+
+static void
+ts_lua_inject_client_request_header_api(lua_State * L)
+{
+  lua_newtable(L);              /* .header */
+
+  lua_createtable(L, 0, 2);     /* metatable for .header */
+
+  lua_pushcfunction(L, ts_lua_client_request_header_get);
+  lua_setfield(L, -2, "__index");
+  lua_pushcfunction(L, ts_lua_client_request_header_set);
+  lua_setfield(L, -2, "__newindex");
+
+  lua_setmetatable(L, -2);
+
+  lua_setfield(L, -2, "header");
+}
+
+static int
+ts_lua_client_request_header_get(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  int val_len;
+  size_t key_len;
+
+  TSMLoc field_loc;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  /*  we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+
+  if (key && key_len) {
+
+    field_loc = TSMimeHdrFieldFind(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, key, key_len);
+    if (field_loc) {
+      val =
+        TSMimeHdrFieldValueStringGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1,
+                                     &val_len);
+      lua_pushlstring(L, val, val_len);
+      TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
+
+    } else {
+      lua_pushnil(L);
+    }
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_header_set(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  size_t val_len;
+  size_t key_len;
+  int remove;
+
+  TSMLoc field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  remove = 0;
+  val = NULL;
+
+  /*   we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+  if (lua_isnil(L, 3)) {
+    remove = 1;
+  } else {
+    val = luaL_checklstring(L, 3, &val_len);
+  }
+
+  field_loc = TSMimeHdrFieldFind(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, key, key_len);
+
+  if (remove) {
+    if (field_loc) {
+      TSMimeHdrFieldDestroy(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
+    }
+
+  } else if (field_loc) {
+    TSMimeHdrFieldValueStringSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, 0, val,
+                                 val_len);
+
+  } else if (TSMimeHdrFieldCreateNamed(http_ctx->client_request_bufp, http_ctx->client_request_hdrp,
+                                       key, key_len, &field_loc) != TS_SUCCESS) {
+    TSError("[%s] TSMimeHdrFieldCreateNamed error", __FUNCTION__);
+    return 0;
+
+  } else {
+    TSMimeHdrFieldValueStringSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1, val,
+                                 val_len);
+    TSMimeHdrFieldAppend(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
+  }
+
+  if (field_loc)
+    TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
+
+  return 0;
+}
+
+static void
+ts_lua_inject_client_request_headers_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_get_headers);
+  lua_setfield(L, -2, "get_headers");
+}
+
+static int
+ts_lua_client_request_get_headers(lua_State * L)
+{
+  const char *name;
+  const char *value;
+  int name_len;
+  int value_len;
+  TSMLoc field_loc;
+  TSMLoc next_field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  lua_newtable(L);
+
+  field_loc = TSMimeHdrFieldGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, 0);
+
+  while (field_loc) {
+
+    name = TSMimeHdrFieldNameGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, &name_len);
+    if (name && name_len) {
+
+      value =
+        TSMimeHdrFieldValueStringGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc, -1,
+                                     &value_len);
+      lua_pushlstring(L, name, name_len);
+      lua_pushlstring(L, value, value_len);
+      lua_rawset(L, -3);
+    }
+
+    next_field_loc = TSMimeHdrFieldNext(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
+    TSHandleMLocRelease(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, field_loc);
+    field_loc = next_field_loc;
+  }
+
+  return 1;
+}
+
+static void
+ts_lua_inject_client_request_url_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_get_url);
+  lua_setfield(L, -2, "get_url");
+
+  lua_pushcfunction(L, ts_lua_client_request_get_pristine_url);
+  lua_setfield(L, -2, "get_pristine_url");
+
+  lua_pushcfunction(L, ts_lua_client_request_get_url_host);
+  lua_setfield(L, -2, "get_url_host");
+  lua_pushcfunction(L, ts_lua_client_request_set_url_host);
+  lua_setfield(L, -2, "set_url_host");
+
+  lua_pushcfunction(L, ts_lua_client_request_get_url_port);
+  lua_setfield(L, -2, "get_url_port");
+  lua_pushcfunction(L, ts_lua_client_request_set_url_port);
+  lua_setfield(L, -2, "set_url_port");
+
+  lua_pushcfunction(L, ts_lua_client_request_get_url_scheme);
+  lua_setfield(L, -2, "get_url_scheme");
+  lua_pushcfunction(L, ts_lua_client_request_set_url_scheme);
+  lua_setfield(L, -2, "set_url_scheme");
+}
+
+static void
+ts_lua_inject_client_request_uri_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_set_uri);
+  lua_setfield(L, -2, "set_uri");
+
+  lua_pushcfunction(L, ts_lua_client_request_get_uri);
+  lua_setfield(L, -2, "get_uri");
+}
+
+static int
+ts_lua_client_request_get_url(lua_State * L)
+{
+  char *url;
+  int url_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  url = TSUrlStringGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &url_len);
+
+  if (url) {
+    lua_pushlstring(L, url, url_len);
+    TSfree(url);
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_get_pristine_url(lua_State * L)
+{
+  char *url;
+  int url_len;
+
+  TSMBuffer bufp;
+  TSMLoc url_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  if (TSHttpTxnPristineUrlGet(http_ctx->txnp, &bufp, &url_loc) != TS_SUCCESS)
+    return 0;
+
+  url = TSUrlStringGet(bufp, url_loc, &url_len);
+
+  if (url) {
+    lua_pushlstring(L, url, url_len);
+    TSfree(url);
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  TSHandleMLocRelease(bufp, NULL, url_loc);
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_get_url_host(lua_State * L)
+{
+  const char *host;
+  int len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  host = TSUrlHostGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &len);
+
+  lua_pushlstring(L, host, len);
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_url_host(lua_State * L)
+{
+  const char *host;
+  size_t len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  host = luaL_checklstring(L, 1, &len);
+
+  TSUrlHostSet(http_ctx->client_request_bufp, http_ctx->client_request_url, host, len);
+
+  return 0;
+}
+
+static int
+ts_lua_client_request_get_url_port(lua_State * L)
+{
+  int port;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  port = TSUrlPortGet(http_ctx->client_request_bufp, http_ctx->client_request_url);
+
+  lua_pushnumber(L, port);
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_url_port(lua_State * L)
+{
+  int port;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  port = luaL_checkint(L, 1);
+
+  TSUrlPortSet(http_ctx->client_request_bufp, http_ctx->client_request_url, port);
+
+  return 0;
+}
+
+static int
+ts_lua_client_request_get_url_scheme(lua_State * L)
+{
+  const char *scheme;
+  int len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  scheme = TSUrlSchemeGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &len);
+
+  lua_pushlstring(L, scheme, len);
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_url_scheme(lua_State * L)
+{
+  const char *scheme;
+  size_t len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  scheme = luaL_checklstring(L, 1, &len);
+
+  TSUrlSchemeSet(http_ctx->client_request_bufp, http_ctx->client_request_url, scheme, len);
+
+  return 0;
+}
+
+static int
+ts_lua_client_request_get_uri(lua_State * L)
+{
+  char uri[TS_LUA_MAX_URL_LENGTH];
+  const char *path;
+  int path_len;
+  int uri_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  path = TSUrlPathGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &path_len);
+
+  uri_len = snprintf(uri, TS_LUA_MAX_URL_LENGTH, "/%.*s", path_len, path);
+
+  lua_pushlstring(L, uri, uri_len);
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_uri(lua_State * L)
+{
+  const char *path;
+  size_t path_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  path = luaL_checklstring(L, 1, &path_len);
+
+  if (*path == '/') {
+    path++;
+    path_len--;
+  }
+
+  TSUrlPathSet(http_ctx->client_request_bufp, http_ctx->client_request_url, path, path_len);
+
+  return 0;
+}
+
+
+static void
+ts_lua_inject_client_request_args_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_set_uri_args);
+  lua_setfield(L, -2, "set_uri_args");
+
+  lua_pushcfunction(L, ts_lua_client_request_get_uri_args);
+  lua_setfield(L, -2, "get_uri_args");
+}
+
+static int
+ts_lua_client_request_get_uri_args(lua_State * L)
+{
+  const char *param;
+  int param_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  param = TSUrlHttpQueryGet(http_ctx->client_request_bufp, http_ctx->client_request_url, &param_len);
+
+  if (param && param_len > 0) {
+    lua_pushlstring(L, param, param_len);
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_uri_args(lua_State * L)
+{
+  const char *param;
+  size_t param_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  param = luaL_checklstring(L, 1, &param_len);
+  TSUrlHttpQuerySet(http_ctx->client_request_bufp, http_ctx->client_request_url, param, param_len);
+
+  return 0;
+}
+
+static int
+ts_lua_client_request_client_addr_get_ip(lua_State * L)
+{
+  struct sockaddr const *client_ip;
+  char cip[128];
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);
+
+  if (client_ip == NULL) {
+    lua_pushnil(L);
+
+  } else {
+
+    if (client_ip->sa_family == AF_INET) {
+      inet_ntop(AF_INET, (const void *) &((struct sockaddr_in *) client_ip)->sin_addr, cip, sizeof(cip));
+    } else {
+      inet_ntop(AF_INET6, (const void *) &((struct sockaddr_in6 *) client_ip)->sin6_addr, cip, sizeof(cip));
+    }
+
+    lua_pushstring(L, cip);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_client_addr_get_port(lua_State * L)
+{
+  struct sockaddr const *client_ip;
+  ts_lua_http_ctx *http_ctx;
+  int port;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);
+
+  if (client_ip == NULL) {
+    lua_pushnil(L);
+
+  } else {
+
+    if (client_ip->sa_family == AF_INET) {
+      port = ((struct sockaddr_in *) client_ip)->sin_port;
+    } else {
+      port = ((struct sockaddr_in6 *) client_ip)->sin6_port;
+    }
+
+    lua_pushnumber(L, port);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_client_addr_get_addr(lua_State * L)
+{
+  struct sockaddr const *client_ip;
+  ts_lua_http_ctx *http_ctx;
+  int port;
+  int family;
+  char cip[128];
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  client_ip = TSHttpTxnClientAddrGet(http_ctx->txnp);
+
+  if (client_ip == NULL) {
+    lua_pushnil(L);
+    lua_pushnil(L);
+    lua_pushnil(L);
+
+  } else {
+
+    if (client_ip->sa_family == AF_INET) {
+      port = ((struct sockaddr_in *) client_ip)->sin_port;
+      inet_ntop(AF_INET, (const void *) &((struct sockaddr_in *) client_ip)->sin_addr, cip, sizeof(cip));
+      family = AF_INET;
+    } else {
+      port = ((struct sockaddr_in6 *) client_ip)->sin6_port;
+      inet_ntop(AF_INET6, (const void *) &((struct sockaddr_in6 *) client_ip)->sin6_addr, cip, sizeof(cip));
+      family = AF_INET6;
+    }
+
+    lua_pushstring(L, cip);
+    lua_pushnumber(L, port);
+    lua_pushnumber(L, family);
+  }
+
+  return 3;
+}
+
+static void
+ts_lua_inject_client_request_method_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_get_method);
+  lua_setfield(L, -2, "get_method");
+
+  lua_pushcfunction(L, ts_lua_client_request_set_method);
+  lua_setfield(L, -2, "set_method");
+}
+
+static int
+ts_lua_client_request_get_method(lua_State * L)
+{
+  const char *method;
+  int method_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  method = TSHttpHdrMethodGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, &method_len);
+
+  if (method && method_len) {
+    lua_pushlstring(L, method, method_len);
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_method(lua_State * L)
+{
+  const char *method;
+  size_t method_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  method = luaL_checklstring(L, 1, &method_len);
+
+  if (method) {
+    TSHttpHdrMethodSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, method, method_len);
+  }
+
+  return 0;
+}
+
+static void
+ts_lua_inject_client_request_body_size_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_get_body_size);
+  lua_setfield(L, -2, "get_body_size");
+}
+
+static int
+ts_lua_client_request_get_body_size(lua_State * L)
+{
+  int64_t body_size;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  body_size = TSHttpTxnClientReqBodyBytesGet(http_ctx->txnp);
+  lua_pushnumber(L, body_size);
+
+  return 1;
+}
+
+static void
+ts_lua_inject_client_request_version_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_get_version);
+  lua_setfield(L, -2, "get_version");
+
+  lua_pushcfunction(L, ts_lua_client_request_set_version);
+  lua_setfield(L, -2, "set_version");
+}
+
+static int
+ts_lua_client_request_get_version(lua_State * L)
+{
+  int version;
+  char buf[32];
+  int n;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  version = TSHttpHdrVersionGet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp);
+
+  n = snprintf(buf, sizeof(buf) - 1, "%d.%d", TS_HTTP_MAJOR(version), TS_HTTP_MINOR(version));
+  lua_pushlstring(L, buf, n);
+
+  return 1;
+}
+
+static int
+ts_lua_client_request_set_version(lua_State * L)
+{
+  const char *version;
+  size_t len;
+  int major, minor;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  version = luaL_checklstring(L, 1, &len);
+
+  sscanf(version, "%2u.%2u", &major, &minor);
+
+  TSHttpHdrVersionSet(http_ctx->client_request_bufp, http_ctx->client_request_hdrp, TS_HTTP_VERSION(major, minor));
+
+  return 0;
+}
+
+static void
+ts_lua_inject_client_request_header_size_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_request_get_header_size);
+  lua_setfield(L, -2, "get_header_size");
+}
+
+static int
+ts_lua_client_request_get_header_size(lua_State * L)
+{
+  int header_size;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  header_size = TSHttpTxnClientReqHdrBytesGet(http_ctx->txnp);
+  lua_pushnumber(L, header_size);
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_client_request.h b/plugins/experimental/ts_lua/ts_lua_client_request.h
new file mode 100644
index 00000000..d279b192
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_client_request.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_CLIENT_REQUEST_H
+#define _TS_LUA_CLIENT_REQUEST_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_client_request_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_client_response.c b/plugins/experimental/ts_lua/ts_lua_client_response.c
new file mode 100644
index 00000000..7e22eefd
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_client_response.c
@@ -0,0 +1,395 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+#define TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx)     \
+do {        \
+    if (!http_ctx->client_response_hdrp) {           \
+        if (TSHttpTxnClientRespGet(http_ctx->txnp,   \
+                    &http_ctx->client_response_bufp, \
+                    &http_ctx->client_response_hdrp) != TS_SUCCESS) {    \
+            return 0;   \
+        }   \
+    }   \
+} while(0)
+
+
+static int ts_lua_client_response_header_get(lua_State * L);
+static int ts_lua_client_response_header_set(lua_State * L);
+
+static int ts_lua_client_response_get_headers(lua_State * L);
+
+static int ts_lua_client_response_get_status(lua_State * L);
+static int ts_lua_client_response_set_status(lua_State * L);
+
+static int ts_lua_client_response_set_error_resp(lua_State * L);
+
+static int ts_lua_client_response_get_version(lua_State * L);
+static int ts_lua_client_response_set_version(lua_State * L);
+
+static void ts_lua_inject_client_response_header_api(lua_State * L);
+static void ts_lua_inject_client_response_headers_api(lua_State * L);
+static void ts_lua_inject_client_response_misc_api(lua_State * L);
+
+
+void
+ts_lua_inject_client_response_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_client_response_header_api(L);
+  ts_lua_inject_client_response_headers_api(L);
+  ts_lua_inject_client_response_misc_api(L);
+
+  lua_setfield(L, -2, "client_response");
+}
+
+static void
+ts_lua_inject_client_response_header_api(lua_State * L)
+{
+  lua_newtable(L);              /* .header */
+
+  lua_createtable(L, 0, 2);     /* metatable for .header */
+
+  lua_pushcfunction(L, ts_lua_client_response_header_get);
+  lua_setfield(L, -2, "__index");
+  lua_pushcfunction(L, ts_lua_client_response_header_set);
+  lua_setfield(L, -2, "__newindex");
+
+  lua_setmetatable(L, -2);
+
+  lua_setfield(L, -2, "header");
+}
+
+static int
+ts_lua_client_response_header_get(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  int val_len;
+  size_t key_len;
+
+  TSMLoc field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  /*  we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+
+  if (!http_ctx->client_response_hdrp) {
+    if (TSHttpTxnClientRespGet(http_ctx->txnp,
+                               &http_ctx->client_response_bufp, &http_ctx->client_response_hdrp) != TS_SUCCESS) {
+
+      lua_pushnil(L);
+      return 1;
+    }
+  }
+
+  if (key && key_len) {
+
+    field_loc = TSMimeHdrFieldFind(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, key, key_len);
+    if (field_loc) {
+      val =
+        TSMimeHdrFieldValueStringGet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc, -1,
+                                     &val_len);
+      lua_pushlstring(L, val, val_len);
+      TSHandleMLocRelease(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+
+    } else {
+      lua_pushnil(L);
+    }
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_client_response_header_set(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  size_t val_len;
+  size_t key_len;
+  int remove;
+
+  TSMLoc field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  remove = 0;
+  val = NULL;
+
+  /*  we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+  if (lua_isnil(L, 3)) {
+    remove = 1;
+  } else {
+    val = luaL_checklstring(L, 3, &val_len);
+  }
+
+  if (!http_ctx->client_response_hdrp) {
+    if (TSHttpTxnClientRespGet(http_ctx->txnp, &http_ctx->client_response_bufp,
+                               &http_ctx->client_response_hdrp) != TS_SUCCESS) {
+      return 0;
+    }
+  }
+
+  field_loc = TSMimeHdrFieldFind(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, key, key_len);
+
+  if (remove) {
+    if (field_loc) {
+      TSMimeHdrFieldDestroy(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+    }
+
+  } else if (field_loc) {
+    TSMimeHdrFieldValueStringSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc, 0, val,
+                                 val_len);
+
+  } else if (TSMimeHdrFieldCreateNamed(http_ctx->client_response_bufp, http_ctx->client_response_hdrp,
+                                       key, key_len, &field_loc) != TS_SUCCESS) {
+    TSError("[%s] TSMimeHdrFieldCreateNamed error", __FUNCTION__);
+    return 0;
+
+  } else {
+    TSMimeHdrFieldValueStringSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc, -1, val,
+                                 val_len);
+    TSMimeHdrFieldAppend(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+  }
+
+  if (field_loc)
+    TSHandleMLocRelease(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+
+  return 0;
+}
+
+static void
+ts_lua_inject_client_response_headers_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_response_get_headers);
+  lua_setfield(L, -2, "get_headers");
+}
+
+static int
+ts_lua_client_response_get_headers(lua_State * L)
+{
+  const char *name;
+  const char *value;
+  int name_len;
+  int value_len;
+  TSMLoc field_loc;
+  TSMLoc next_field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
+
+  lua_newtable(L);
+
+  field_loc = TSMimeHdrFieldGet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, 0);
+
+  while (field_loc) {
+
+    name = TSMimeHdrFieldNameGet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc, &name_len);
+    if (name && name_len) {
+
+      value =
+        TSMimeHdrFieldValueStringGet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc, -1,
+                                     &value_len);
+      lua_pushlstring(L, name, name_len);
+      lua_pushlstring(L, value, value_len);
+      lua_rawset(L, -3);
+    }
+
+    next_field_loc = TSMimeHdrFieldNext(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+    TSHandleMLocRelease(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+    field_loc = next_field_loc;
+  }
+
+  return 1;
+}
+
+static void
+ts_lua_inject_client_response_misc_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_client_response_get_status);
+  lua_setfield(L, -2, "get_status");
+  lua_pushcfunction(L, ts_lua_client_response_set_status);
+  lua_setfield(L, -2, "set_status");
+
+  lua_pushcfunction(L, ts_lua_client_response_get_version);
+  lua_setfield(L, -2, "get_version");
+  lua_pushcfunction(L, ts_lua_client_response_set_version);
+  lua_setfield(L, -2, "set_version");
+
+  lua_pushcfunction(L, ts_lua_client_response_set_error_resp);
+  lua_setfield(L, -2, "set_error_resp");
+
+  return;
+}
+
+static int
+ts_lua_client_response_get_status(lua_State * L)
+{
+  int status;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
+
+  status = TSHttpHdrStatusGet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp);
+
+  lua_pushinteger(L, status);
+
+  return 1;
+}
+
+static int
+ts_lua_client_response_set_status(lua_State * L)
+{
+  int status;
+  const char *reason;
+  int reason_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
+
+  status = luaL_checkint(L, 1);
+
+  reason = TSHttpHdrReasonLookup(status);
+  reason_len = strlen(reason);
+
+  TSHttpHdrStatusSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, status);
+  TSHttpHdrReasonSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, reason, reason_len);
+
+  return 0;
+}
+
+static int
+ts_lua_client_response_get_version(lua_State * L)
+{
+  int version;
+  char buf[32];
+  int n;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
+
+  version = TSHttpHdrVersionGet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp);
+
+  n = snprintf(buf, sizeof(buf) - 1, "%d.%d", TS_HTTP_MAJOR(version), TS_HTTP_MINOR(version));
+  lua_pushlstring(L, buf, n);
+
+  return 1;
+}
+
+static int
+ts_lua_client_response_set_version(lua_State * L)
+{
+  const char *version;
+  size_t len;
+  int major, minor;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
+
+  version = luaL_checklstring(L, 1, &len);
+
+  sscanf(version, "%2u.%2u", &major, &minor);
+
+  TSHttpHdrVersionSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, TS_HTTP_VERSION(major, minor));
+
+  return 0;
+}
+
+static int
+ts_lua_client_response_set_error_resp(lua_State * L)
+{
+  int n, status;
+  const char *body;
+  const char *reason;
+  int reason_len;
+  size_t body_len;
+  int resp_len;
+  char *resp_buf;
+  TSMLoc field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+  TS_LUA_CHECK_CLIENT_RESPONSE_HDR(http_ctx);
+
+  n = lua_gettop(L);
+
+  status = luaL_checkinteger(L, 1);
+
+  reason = TSHttpHdrReasonLookup(status);
+  reason_len = strlen(reason);
+
+  TSHttpHdrStatusSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, status);
+  TSHttpHdrReasonSet(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, reason, reason_len);
+
+  body_len = 0;
+
+  if (n == 2) {
+    body = luaL_checklstring(L, 2, &body_len);
+  }
+
+  if (body_len && body) {
+    resp_buf = TSmalloc(body_len);
+    memcpy(resp_buf, body, body_len);
+    resp_len = body_len;
+
+  } else {
+    resp_buf = TSmalloc(reason_len);
+    memcpy(resp_buf, reason, reason_len);
+    resp_len = reason_len;
+  }
+
+  field_loc = TSMimeHdrFieldFind(http_ctx->client_response_bufp, http_ctx->client_response_hdrp,
+                                 TS_MIME_FIELD_TRANSFER_ENCODING, TS_MIME_LEN_TRANSFER_ENCODING);
+
+  if (field_loc) {
+    TSMimeHdrFieldDestroy(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+    TSHandleMLocRelease(http_ctx->client_response_bufp, http_ctx->client_response_hdrp, field_loc);
+  }
+
+  TSHttpTxnErrorBodySet(http_ctx->txnp, resp_buf, resp_len, NULL);
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_client_response.h b/plugins/experimental/ts_lua/ts_lua_client_response.h
new file mode 100644
index 00000000..eb20467d
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_client_response.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_CLIENT_RESPONSE_H
+#define _TS_LUA_CLIENT_RESPONSE_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_client_response_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_common.h b/plugins/experimental/ts_lua/ts_lua_common.h
new file mode 100644
index 00000000..6c245f34
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_common.h
@@ -0,0 +1,220 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_COMMON_H
+#define _TS_LUA_COMMON_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+
+#include <ts/ts.h>
+#include <ts/experimental.h>
+#include <ts/remap.h>
+#include "ink_defs.h"
+
+#define TS_LUA_FUNCTION_REMAP                   "do_remap"
+#define TS_LUA_FUNCTION_CACHE_LOOKUP_COMPLETE   "do_cache_lookup_complete"
+#define TS_LUA_FUNCTION_SEND_REQUEST            "do_send_request"
+#define TS_LUA_FUNCTION_READ_RESPONSE           "do_read_response"
+#define TS_LUA_FUNCTION_SEND_RESPONSE           "do_send_response"
+#define TS_LUA_FUNCTION_READ_REQUEST            "do_read_request"
+#define TS_LUA_FUNCTION_TXN_START               "do_txn_start"
+#define TS_LUA_FUNCTION_PRE_REMAP               "do_pre_remap"
+#define TS_LUA_FUNCTION_POST_REMAP              "do_post_remap"
+#define TS_LUA_FUNCTION_OS_DNS                  "do_os_dns"
+#define TS_LUA_FUNCTION_SELECT_ALT              "do_select_alt"
+#define TS_LUA_FUNCTION_READ_CACHE              "do_read_cache"
+#define TS_LUA_FUNCTION_TXN_CLOSE               "do_txn_close"
+
+#define TS_LUA_FUNCTION_G_SEND_REQUEST "do_global_send_request"
+#define TS_LUA_FUNCTION_G_READ_REQUEST "do_global_read_request"
+#define TS_LUA_FUNCTION_G_SEND_RESPONSE "do_global_send_response"
+#define TS_LUA_FUNCTION_G_READ_RESPONSE "do_global_read_response"
+#define TS_LUA_FUNCTION_G_CACHE_LOOKUP_COMPLETE "do_global_cache_lookup_complete"
+#define TS_LUA_FUNCTION_G_TXN_START "do_global_txn_start"
+#define TS_LUA_FUNCTION_G_PRE_REMAP "do_global_pre_remap"
+#define TS_LUA_FUNCTION_G_POST_REMAP "do_global_post_remap"
+#define TS_LUA_FUNCTION_G_OS_DNS "do_global_os_dns"
+#define TS_LUA_FUNCTION_G_SELECT_ALT "do_global_select_alt"
+#define TS_LUA_FUNCTION_G_READ_CACHE "do_global_read_cache"
+#define TS_LUA_FUNCTION_G_TXN_CLOSE "do_global_txn_close"
+
+
+#define TS_LUA_DEBUG_TAG                        "ts_lua"
+
+#define TS_LUA_MAX_SCRIPT_FNAME_LENGTH          1024
+#define TS_LUA_MAX_CONFIG_VARS_COUNT            256
+#define TS_LUA_MAX_SHARED_DICT_NAME_LENGTH      128
+#define TS_LUA_MAX_SHARED_DICT_COUNT            32
+#define TS_LUA_MAX_URL_LENGTH                   2048
+#define TS_LUA_MAX_OVEC_SIZE                    (3 * 32)
+#define TS_LUA_MAX_RESIDENT_PCRE                64
+
+#define TS_LUA_MIN_ALIGN                        sizeof(void*)
+#define TS_LUA_MEM_ALIGN(size)                  (((size) + ((TS_LUA_MIN_ALIGN) - 1)) & ~((TS_LUA_MIN_ALIGN) - 1))
+#define TS_LUA_ALIGN_COUNT(size)                (size / TS_LUA_MIN_ALIGN)
+
+#define TS_LUA_MAKE_VAR_ITEM(X)                 {X, #X}
+
+/* for http config or cntl var */
+typedef struct
+{
+  int nvar;
+  char *svar;
+} ts_lua_var_item;
+
+typedef struct
+{
+  char *content;
+  char script[TS_LUA_MAX_SCRIPT_FNAME_LENGTH];
+  void *conf_vars[TS_LUA_MAX_CONFIG_VARS_COUNT];
+
+  int _first:1;                 // create current instance for 1st ts_lua_main_ctx
+  int _last:1;                  // create current instance for the last ts_lua_main_ctx
+} ts_lua_instance_conf;
+
+
+/* global lua state struct */
+typedef struct
+{
+  lua_State *lua;
+  TSMutex mutexp;
+  int gref;
+} ts_lua_main_ctx;
+
+/* lua state for http request */
+typedef struct
+{
+  lua_State *lua;
+  TSHttpTxn txnp;
+  TSCont main_contp;
+
+  TSMBuffer client_request_bufp;
+  TSMLoc client_request_hdrp;
+  TSMLoc client_request_url;
+
+  TSMBuffer server_request_bufp;
+  TSMLoc server_request_hdrp;
+  TSMLoc server_request_url;
+
+
+  TSMBuffer server_response_bufp;
+  TSMLoc server_response_hdrp;
+
+  TSMBuffer client_response_bufp;
+  TSMLoc client_response_hdrp;
+
+  TSMBuffer cached_response_bufp;
+  TSMLoc cached_response_hdrp;
+
+  ts_lua_main_ctx *mctx;
+
+  ts_lua_instance_conf *instance_conf;
+
+  int intercept_type;
+  int ref;
+
+  int remap;
+  int has_hook;
+
+} ts_lua_http_ctx;
+
+
+typedef struct
+{
+  TSVIO vio;
+  TSIOBuffer buffer;
+  TSIOBufferReader reader;
+} ts_lua_io_handle;
+
+typedef struct
+{
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+
+  int64_t total;
+  ts_lua_http_ctx *hctx;
+  int eos;
+
+} ts_lua_transform_ctx;
+
+/* for intercept */
+struct ict_item;
+struct ict_ctx;
+typedef int (*ict_clean) (struct ict_item * item);
+
+typedef struct ict_item
+{
+  struct ict_item *next;
+  struct ict_ctx *ictx;
+
+  TSCont contp;
+  ict_clean cleanup;
+  void *data;
+  int deleted:1;
+} ts_lua_http_intercept_item;
+
+typedef struct ict_ctx
+{
+  lua_State *lua;
+  TSCont contp;
+  ts_lua_io_handle input;
+  ts_lua_io_handle output;
+  TSVConn net_vc;
+
+  ts_lua_main_ctx *mctx;
+  ts_lua_http_ctx *hctx;
+
+  struct ict_item *ict_chain;
+
+  int64_t to_flush;
+  int ref;
+
+  int recv_complete:1;
+  int send_complete:1;
+  int all_ready:1;
+} ts_lua_http_intercept_ctx;
+
+#define TS_LUA_RELEASE_IO_HANDLE(ih) do {   \
+    if (ih->reader) {                       \
+        TSIOBufferReaderFree(ih->reader);   \
+        ih->reader = NULL;                  \
+    }                                       \
+    if (ih->buffer) {                       \
+        TSIOBufferDestroy(ih->buffer);      \
+        ih->buffer = NULL;                  \
+    }                                       \
+} while (0)
+
+#define TS_LUA_ADD_INTERCEPT_ITEM(ictx, item, contp, func, d)   \
+            {   item->cleanup = func;  \
+                item->data = d;  \
+                item->ictx = ictx;  \
+                item->contp = contp;  \
+                item->deleted = 0;  \
+                item->next = ictx->ict_chain;   \
+                ictx->ict_chain = item;}
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_context.c b/plugins/experimental/ts_lua/ts_lua_context.c
new file mode 100644
index 00000000..5d967a92
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_context.c
@@ -0,0 +1,93 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+static char ts_http_context_key;
+
+static int ts_lua_context_get(lua_State * L);
+static int ts_lua_context_set(lua_State * L);
+
+
+void
+ts_lua_inject_context_api(lua_State * L)
+{
+  lua_newtable(L);              /* .ctx */
+
+  lua_createtable(L, 0, 2);     /* metatable for context */
+
+  lua_pushcfunction(L, ts_lua_context_get);
+  lua_setfield(L, -2, "__index");
+  lua_pushcfunction(L, ts_lua_context_set);
+  lua_setfield(L, -2, "__newindex");
+
+  lua_setmetatable(L, -2);
+
+  lua_setfield(L, -2, "ctx");
+}
+
+void
+ts_lua_create_context_table(lua_State * L)
+{
+  lua_pushlightuserdata(L, &ts_http_context_key);
+  lua_newtable(L);
+  lua_rawset(L, LUA_GLOBALSINDEX);
+}
+
+
+static int
+ts_lua_context_get(lua_State * L)
+{
+  const char *key;
+  size_t key_len;
+
+  key = luaL_checklstring(L, 2, &key_len);
+
+  if (key && key_len) {
+    lua_pushlightuserdata(L, &ts_http_context_key);
+    lua_rawget(L, LUA_GLOBALSINDEX);    // get the context table
+
+    lua_pushlstring(L, key, key_len);
+    lua_rawget(L, -2);
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_context_set(lua_State * L)
+{
+  const char *key;
+  size_t key_len;
+
+  key = luaL_checklstring(L, 2, &key_len);
+
+  lua_pushlightuserdata(L, &ts_http_context_key);
+  lua_rawget(L, LUA_GLOBALSINDEX);      // get the context table    -3
+
+  lua_pushlstring(L, key, key_len);     // push key                 -2
+  lua_pushvalue(L, 3);          // push value               -1
+
+  lua_rawset(L, -3);
+  lua_pop(L, 1);                // pop the context table
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_context.h b/plugins/experimental/ts_lua/ts_lua_context.h
new file mode 100644
index 00000000..e77abfd7
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_context.h
@@ -0,0 +1,28 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_CONTEXT_H
+#define _TS_LUA_CONTEXT_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_context_api(lua_State * L);
+void ts_lua_create_context_table(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_crypto.c b/plugins/experimental/ts_lua/ts_lua_crypto.c
new file mode 100644
index 00000000..77718d45
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_crypto.c
@@ -0,0 +1,177 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include <openssl/md5.h>
+#include <openssl/sha.h>
+#include "ts_lua_string.h"
+#include "ts_lua_util.h"
+
+
+#define TS_LUA_MD5_DIGEST_LENGTH    16
+#define TS_LUA_SHA_DIGEST_LENGTH    20
+
+static int ts_lua_md5(lua_State * L);
+static int ts_lua_md5_bin(lua_State * L);
+
+static int ts_lua_sha1(lua_State * L);
+static int ts_lua_sha1_bin(lua_State * L);
+
+void
+ts_lua_inject_crypto_api(lua_State * L)
+{
+  /* ts.md5() */
+  lua_pushcfunction(L, ts_lua_md5);
+  lua_setfield(L, -2, "md5");
+
+  /* ts.md5_bin(...) */
+  lua_pushcfunction(L, ts_lua_md5_bin);
+  lua_setfield(L, -2, "md5_bin");
+
+  /* ts.sha1_bin(...) */
+  lua_pushcfunction(L, ts_lua_sha1);
+  lua_setfield(L, -2, "sha1");
+
+  /* ts.sha1_bin(...) */
+  lua_pushcfunction(L, ts_lua_sha1_bin);
+  lua_setfield(L, -2, "sha1_bin");
+}
+
+static int
+ts_lua_md5(lua_State * L)
+{
+  u_char *src;
+  size_t slen;
+
+  MD5_CTX md5_ctx;
+  u_char md5_buf[TS_LUA_MD5_DIGEST_LENGTH];
+  u_char hex_buf[2 * sizeof(md5_buf)];
+
+  if (lua_gettop(L) != 1) {
+    return luaL_error(L, "expecting one argument");
+  }
+
+  if (lua_isnil(L, 1)) {
+    src = (u_char *) "";
+    slen = 0;
+
+  } else {
+    src = (u_char *) luaL_checklstring(L, 1, &slen);
+  }
+
+  MD5_Init(&md5_ctx);
+  MD5_Update(&md5_ctx, src, slen);
+  MD5_Final(md5_buf, &md5_ctx);
+
+  ts_lua_hex_dump(hex_buf, md5_buf, sizeof(md5_buf));
+
+  lua_pushlstring(L, (char *) hex_buf, sizeof(hex_buf));
+
+  return 1;
+}
+
+static int
+ts_lua_md5_bin(lua_State * L)
+{
+  u_char *src;
+  size_t slen;
+
+  MD5_CTX md5_ctx;
+  u_char md5_buf[TS_LUA_MD5_DIGEST_LENGTH];
+
+  if (lua_gettop(L) != 1) {
+    return luaL_error(L, "expecting one argument");
+  }
+
+  if (lua_isnil(L, 1)) {
+    src = (u_char *) "";
+    slen = 0;
+
+  } else {
+    src = (u_char *) luaL_checklstring(L, 1, &slen);
+  }
+
+  MD5_Init(&md5_ctx);
+  MD5_Update(&md5_ctx, src, slen);
+  MD5_Final(md5_buf, &md5_ctx);
+
+  lua_pushlstring(L, (char *) md5_buf, sizeof(md5_buf));
+
+  return 1;
+}
+
+static int
+ts_lua_sha1(lua_State * L)
+{
+  u_char *src;
+  size_t slen;
+
+  SHA_CTX sha;
+  u_char sha_buf[TS_LUA_SHA_DIGEST_LENGTH];
+  u_char hex_buf[2 * sizeof(sha_buf)];
+
+  if (lua_gettop(L) != 1) {
+    return luaL_error(L, "expecting one argument");
+  }
+
+  if (lua_isnil(L, 1)) {
+    src = (u_char *) "";
+    slen = 0;
+
+  } else {
+    src = (u_char *) luaL_checklstring(L, 1, &slen);
+  }
+
+  SHA1_Init(&sha);
+  SHA1_Update(&sha, src, slen);
+  SHA1_Final(sha_buf, &sha);
+
+  ts_lua_hex_dump(hex_buf, sha_buf, sizeof(sha_buf));
+  lua_pushlstring(L, (char *) hex_buf, sizeof(hex_buf));
+
+  return 1;
+}
+
+static int
+ts_lua_sha1_bin(lua_State * L)
+{
+  u_char *src;
+  size_t slen;
+
+  SHA_CTX sha;
+  u_char sha_buf[TS_LUA_SHA_DIGEST_LENGTH];
+
+  if (lua_gettop(L) != 1) {
+    return luaL_error(L, "expecting one argument");
+  }
+
+  if (lua_isnil(L, 1)) {
+    src = (u_char *) "";
+    slen = 0;
+
+  } else {
+    src = (u_char *) luaL_checklstring(L, 1, &slen);
+  }
+
+  SHA1_Init(&sha);
+  SHA1_Update(&sha, src, slen);
+  SHA1_Final(sha_buf, &sha);
+
+  lua_pushlstring(L, (char *) sha_buf, sizeof(sha_buf));
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_crypto.h b/plugins/experimental/ts_lua/ts_lua_crypto.h
new file mode 100644
index 00000000..6f0da120
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_crypto.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_CRYPTO_H
+#define _TS_LUA_CRYPTO_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_crypto_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_hook.c b/plugins/experimental/ts_lua/ts_lua_hook.c
new file mode 100644
index 00000000..1b27cf15
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_hook.c
@@ -0,0 +1,281 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_hook.h"
+#include "ts_lua_transform.h"
+#include "ts_lua_util.h"
+
+
+typedef enum
+{
+  TS_LUA_HOOK_DUMMY = 0,
+  TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE,
+  TS_LUA_HOOK_SEND_REQUEST_HDR,
+  TS_LUA_HOOK_READ_RESPONSE_HDR,
+  TS_LUA_HOOK_SEND_RESPONSE_HDR,
+  TS_LUA_HOOK_READ_REQUEST_HDR,
+  TS_LUA_HOOK_TXN_START,
+  TS_LUA_HOOK_PRE_REMAP,
+  TS_LUA_HOOK_POST_REMAP,
+  TS_LUA_HOOK_OS_DNS,
+  TS_LUA_HOOK_SELECT_ALT,
+  TS_LUA_HOOK_READ_CACHE_HDR,
+  TS_LUA_HOOK_TXN_CLOSE,
+  TS_LUA_REQUEST_TRANSFORM,
+  TS_LUA_RESPONSE_TRANSFORM,
+  TS_LUA_HOOK_LAST
+} TSLuaHookID;
+
+
+char *ts_lua_hook_id_string[] = {
+  "TS_LUA_HOOK_DUMMY",
+  "TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE",
+  "TS_LUA_HOOK_SEND_REQUEST_HDR",
+  "TS_LUA_HOOK_READ_RESPONSE_HDR",
+  "TS_LUA_HOOK_SEND_RESPONSE_HDR",
+  "TS_LUA_HOOK_READ_REQUEST_HDR",
+  "TS_LUA_HOOK_TXN_START",
+  "TS_LUA_HOOK_PRE_REMAP",
+  "TS_LUA_HOOK_POST_REMAP",
+  "TS_LUA_HOOK_OS_DNS",
+  "TS_LUA_HOOK_SELECT_ALT",
+  "TS_LUA_HOOK_READ_CACHE_HDR",
+  "TS_LUA_HOOK_TXN_CLOSE",
+  "TS_LUA_REQUEST_TRANSFORM",
+  "TS_LUA_RESPONSE_TRANSFORM",
+  "TS_LUA_HOOK_LAST"
+};
+
+
+static int ts_lua_add_hook(lua_State * L);
+static void ts_lua_inject_hook_variables(lua_State * L);
+
+
+void
+ts_lua_inject_hook_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_add_hook);
+  lua_setfield(L, -2, "hook");
+
+  ts_lua_inject_hook_variables(L);
+}
+
+static void
+ts_lua_inject_hook_variables(lua_State * L)
+{
+  int i;
+
+  for (i = 0; i < sizeof(ts_lua_hook_id_string) / sizeof(char *); i++) {
+    lua_pushinteger(L, i);
+    lua_setglobal(L, ts_lua_hook_id_string[i]);
+  }
+}
+
+static int
+ts_lua_add_hook(lua_State * L)
+{
+  int type;
+  int entry;
+
+  TSVConn connp;
+  ts_lua_http_ctx *http_ctx;
+  ts_lua_transform_ctx *transform_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  entry = lua_tointeger(L, 1);  // get hook id
+
+  type = lua_type(L, 2);
+  if (type != LUA_TFUNCTION)
+    return 0;
+
+  switch (entry) {
+
+  case TS_LUA_HOOK_CACHE_LOOKUP_COMPLETE:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_CACHE_LOOKUP_COMPLETE);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_CACHE_LOOKUP_COMPLETE);
+    }
+    break;
+
+  case TS_LUA_HOOK_SEND_REQUEST_HDR:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_SEND_REQUEST_HDR_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_SEND_REQUEST);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_SEND_REQUEST);
+    }
+    break;
+
+  case TS_LUA_HOOK_READ_RESPONSE_HDR:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_READ_RESPONSE_HDR_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_READ_RESPONSE);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_READ_RESPONSE);
+    }
+    break;
+
+  case TS_LUA_HOOK_SEND_RESPONSE_HDR:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_SEND_RESPONSE);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_SEND_RESPONSE);
+    }
+    break;
+
+  case TS_LUA_HOOK_READ_REQUEST_HDR:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_READ_REQUEST_HDR_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_READ_REQUEST);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_READ_REQUEST);
+    }
+    break;
+
+  case TS_LUA_HOOK_TXN_START:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_TXN_START_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_TXN_START);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_TXN_START);
+    }
+    break;
+
+  case TS_LUA_HOOK_PRE_REMAP:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_PRE_REMAP_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_PRE_REMAP);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_PRE_REMAP);
+    }
+    break;
+
+  case TS_LUA_HOOK_POST_REMAP:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_POST_REMAP_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_POST_REMAP);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_POST_REMAP);
+    }    
+    break;
+
+  case TS_LUA_HOOK_OS_DNS:
+    if (http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_OS_DNS_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_OS_DNS);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_OS_DNS);
+    }
+    break;
+
+  case TS_LUA_HOOK_SELECT_ALT:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_SELECT_ALT_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_SELECT_ALT);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_SELECT_ALT);
+    }
+    break;
+
+  case TS_LUA_HOOK_READ_CACHE_HDR:
+    if(http_ctx) {
+      TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_READ_CACHE_HDR_HOOK, http_ctx->main_contp);
+      http_ctx->has_hook = 1;
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_READ_CACHE);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_READ_CACHE);
+    }
+    break;
+
+  case TS_LUA_HOOK_TXN_CLOSE:
+    if(http_ctx) {
+      // we don't need to add a hook because we already have added one by default
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_TXN_CLOSE);
+    } else {
+      lua_pushvalue(L, 2);
+      lua_setglobal(L, TS_LUA_FUNCTION_G_TXN_CLOSE);
+    }
+    break;
+
+  case TS_LUA_REQUEST_TRANSFORM:
+  case TS_LUA_RESPONSE_TRANSFORM:
+    if(http_ctx) {
+      http_ctx->has_hook = 1;
+      transform_ctx = (ts_lua_transform_ctx *) TSmalloc(sizeof(ts_lua_transform_ctx));
+      memset(transform_ctx, 0, sizeof(ts_lua_transform_ctx));
+      transform_ctx->hctx = http_ctx;
+
+      connp = TSTransformCreate(ts_lua_transform_entry, http_ctx->txnp);
+      TSContDataSet(connp, transform_ctx);
+
+      if (entry == TS_LUA_REQUEST_TRANSFORM) {
+        TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_REQUEST_TRANSFORM_HOOK, connp);
+      } else {
+        TSHttpTxnHookAdd(http_ctx->txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+      }
+
+      lua_pushlightuserdata(L, transform_ctx);
+      lua_pushvalue(L, 2);
+      lua_rawset(L, LUA_GLOBALSINDEX);
+    }
+    break;
+
+  default:
+    break;
+  }
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_hook.h b/plugins/experimental/ts_lua/ts_lua_hook.h
new file mode 100644
index 00000000..3996899d
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_hook.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_HOOK_H
+#define _TS_LUA_HOOK_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_hook_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_http.c b/plugins/experimental/ts_lua/ts_lua_http.c
new file mode 100644
index 00000000..0ceb0bb5
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http.c
@@ -0,0 +1,283 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+#include "ts_lua_http_intercept.h"
+#include "ts_lua_http_config.h"
+#include "ts_lua_http_cntl.h"
+
+typedef enum
+{
+  TS_LUA_CACHE_LOOKUP_MISS,
+  TS_LUA_CACHE_LOOKUP_HIT_STALE,
+  TS_LUA_CACHE_LOOKUP_HIT_FRESH,
+  TS_LUA_CACHE_LOOKUP_SKIPPED
+} TSLuaCacheLookupResult;
+
+char *ts_lua_cache_lookup_result_string[] = {
+  "TS_LUA_CACHE_LOOKUP_MISS",
+  "TS_LUA_CACHE_LOOKUP_HIT_STALE",
+  "TS_LUA_CACHE_LOOKUP_HIT_FRESH",
+  "TS_LUA_CACHE_LOOKUP_SKIPPED"
+};
+
+static void ts_lua_inject_http_retset_api(lua_State * L);
+static void ts_lua_inject_http_cache_api(lua_State * L);
+static void ts_lua_inject_http_transform_api(lua_State * L);
+static void ts_lua_inject_http_misc_api(lua_State * L);
+
+static int ts_lua_http_set_retstatus(lua_State * L);
+static int ts_lua_http_set_retbody(lua_State * L);
+static int ts_lua_http_set_resp(lua_State * L);
+
+static int ts_lua_http_get_cache_lookup_status(lua_State * L);
+static int ts_lua_http_set_cache_url(lua_State * L);
+
+static void ts_lua_inject_cache_lookup_result_variables(lua_State * L);
+
+static int ts_lua_http_resp_cache_transformed(lua_State * L);
+static int ts_lua_http_resp_cache_untransformed(lua_State * L);
+
+static int ts_lua_http_is_internal_request(lua_State * L);
+static int ts_lua_http_skip_remapping_set(lua_State * L);
+
+void
+ts_lua_inject_http_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_http_retset_api(L);
+  ts_lua_inject_http_cache_api(L);
+  ts_lua_inject_http_transform_api(L);
+  ts_lua_inject_http_intercept_api(L);
+  ts_lua_inject_http_config_api(L);
+  ts_lua_inject_http_cntl_api(L);
+  ts_lua_inject_http_misc_api(L);
+
+  lua_setfield(L, -2, "http");
+}
+
+static void
+ts_lua_inject_http_retset_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_http_set_retstatus);
+  lua_setfield(L, -2, "set_retstatus");
+
+  lua_pushcfunction(L, ts_lua_http_set_retbody);
+  lua_setfield(L, -2, "set_retbody");
+
+  lua_pushcfunction(L, ts_lua_http_set_resp);
+  lua_setfield(L, -2, "set_resp");
+}
+
+static void
+ts_lua_inject_http_cache_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_http_get_cache_lookup_status);
+  lua_setfield(L, -2, "get_cache_lookup_status");
+
+  lua_pushcfunction(L, ts_lua_http_set_cache_url);
+  lua_setfield(L, -2, "set_cache_url");
+
+  ts_lua_inject_cache_lookup_result_variables(L);
+}
+
+static void
+ts_lua_inject_http_transform_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_http_resp_cache_transformed);
+  lua_setfield(L, -2, "resp_cache_transformed");
+
+  lua_pushcfunction(L, ts_lua_http_resp_cache_untransformed);
+  lua_setfield(L, -2, "resp_cache_untransformed");
+}
+
+static void
+ts_lua_inject_http_misc_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_http_is_internal_request);
+  lua_setfield(L, -2, "is_internal_request");
+
+  lua_pushcfunction(L, ts_lua_http_skip_remapping_set);
+  lua_setfield(L, -2, "skip_remapping_set");
+}
+
+static void
+ts_lua_inject_cache_lookup_result_variables(lua_State * L)
+{
+  int i;
+
+  for (i = 0; i < sizeof(ts_lua_cache_lookup_result_string) / sizeof(char *); i++) {
+    lua_pushinteger(L, i);
+    lua_setglobal(L, ts_lua_cache_lookup_result_string[i]);
+  }
+}
+
+static int
+ts_lua_http_set_retstatus(lua_State * L)
+{
+  int status;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  status = luaL_checkinteger(L, 1);
+  TSHttpTxnSetHttpRetStatus(http_ctx->txnp, status);
+  return 0;
+}
+
+static int
+ts_lua_http_set_retbody(lua_State * L)
+{
+  const char *body;
+  size_t body_len;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  body = luaL_checklstring(L, 1, &body_len);
+  TSHttpTxnErrorBodySet(http_ctx->txnp, TSstrdup(body), body_len, NULL);        // Defaults to text/html
+  return 0;
+}
+
+static int
+ts_lua_http_set_resp(lua_State * L)
+{
+  int n, status;
+  const char *body;
+  size_t body_len;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  n = lua_gettop(L);
+
+  status = luaL_checkinteger(L, 1);
+  TSHttpTxnSetHttpRetStatus(http_ctx->txnp, status);
+
+  if (n == 2) {
+    body = luaL_checklstring(L, 2, &body_len);
+    TSHttpTxnErrorBodySet(http_ctx->txnp, TSstrdup(body), body_len, NULL);      // Defaults to text/html
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_http_get_cache_lookup_status(lua_State * L)
+{
+  int status;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  if (TSHttpTxnCacheLookupStatusGet(http_ctx->txnp, &status) == TS_ERROR) {
+    lua_pushnil(L);
+  } else {
+    lua_pushnumber(L, status);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_http_set_cache_url(lua_State * L)
+{
+  const char *url;
+  size_t url_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  url = luaL_checklstring(L, 1, &url_len);
+
+  if (url && url_len) {
+    TSCacheUrlSet(http_ctx->txnp, url, url_len);
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_http_resp_cache_transformed(lua_State * L)
+{
+  int action;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  action = luaL_checkinteger(L, 1);
+
+  TSHttpTxnTransformedRespCache(http_ctx->txnp, action);
+
+  return 0;
+}
+
+static int
+ts_lua_http_resp_cache_untransformed(lua_State * L)
+{
+  int action;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  action = luaL_checkinteger(L, 1);
+
+  TSHttpTxnUntransformedRespCache(http_ctx->txnp, action);
+
+  return 0;
+}
+
+static int
+ts_lua_http_is_internal_request(lua_State * L)
+{
+  TSReturnCode ret;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  ret = TSHttpIsInternalRequest(http_ctx->txnp);
+
+  if (ret == TS_SUCCESS) {
+    lua_pushnumber(L, 1);
+
+  } else {
+    lua_pushnumber(L, 0);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_http_skip_remapping_set(lua_State * L)
+{
+  int action;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  action = luaL_checkinteger(L, 1);
+
+  TSSkipRemappingSet(http_ctx->txnp, action);
+
+  return 0;
+}
+
diff --git a/plugins/experimental/ts_lua/ts_lua_http.h b/plugins/experimental/ts_lua/ts_lua_http.h
new file mode 100644
index 00000000..0b70a4a7
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_HTTP_H
+#define _TS_LUA_HTTP_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_http_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_http_cntl.c b/plugins/experimental/ts_lua/ts_lua_http_cntl.c
new file mode 100644
index 00000000..e88bf74d
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http_cntl.c
@@ -0,0 +1,101 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+typedef enum
+{
+  TS_LUA_HTTP_CNTL_GET_LOGGING_MODE = TS_HTTP_CNTL_GET_LOGGING_MODE,
+  TS_LUA_HTTP_CNTL_SET_LOGGING_MODE = TS_HTTP_CNTL_SET_LOGGING_MODE,
+  TS_LUA_HTTP_CNTL_GET_INTERCEPT_RETRY_MODE = TS_HTTP_CNTL_GET_INTERCEPT_RETRY_MODE,
+  TS_LUA_HTTP_CNTL_SET_INTERCEPT_RETRY_MODE = TS_HTTP_CNTL_SET_INTERCEPT_RETRY_MODE
+} TSLuaHttpCntlType;
+
+
+ts_lua_var_item ts_lua_http_cntl_type_vars[] = {
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_HTTP_CNTL_GET_LOGGING_MODE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_HTTP_CNTL_SET_LOGGING_MODE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_HTTP_CNTL_GET_INTERCEPT_RETRY_MODE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_HTTP_CNTL_SET_INTERCEPT_RETRY_MODE)
+};
+
+
+static void ts_lua_inject_http_cntl_variables(lua_State * L);
+
+static int ts_lua_http_cntl_set(lua_State * L);
+static int ts_lua_http_cntl_get(lua_State * L);
+
+
+void
+ts_lua_inject_http_cntl_api(lua_State * L)
+{
+  ts_lua_inject_http_cntl_variables(L);
+
+  lua_pushcfunction(L, ts_lua_http_cntl_set);
+  lua_setfield(L, -2, "cntl_set");
+
+  lua_pushcfunction(L, ts_lua_http_cntl_get);
+  lua_setfield(L, -2, "cntl_get");
+}
+
+static void
+ts_lua_inject_http_cntl_variables(lua_State * L)
+{
+  int i;
+
+  for (i = 0; i < sizeof(ts_lua_http_cntl_type_vars) / sizeof(ts_lua_var_item); i++) {
+    lua_pushinteger(L, ts_lua_http_cntl_type_vars[i].nvar);
+    lua_setglobal(L, ts_lua_http_cntl_type_vars[i].svar);
+  }
+}
+
+static int
+ts_lua_http_cntl_set(lua_State * L)
+{
+  int cntl_type;
+  int value;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  cntl_type = luaL_checkinteger(L, 1);
+  value = luaL_checkinteger(L, 2);
+
+  TSHttpTxnCntl(http_ctx->txnp, cntl_type, value ? TS_HTTP_CNTL_ON : TS_HTTP_CNTL_OFF);
+
+  return 0;
+}
+
+static int
+ts_lua_http_cntl_get(lua_State * L)
+{
+  int cntl_type;
+  int64_t value;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  cntl_type = luaL_checkinteger(L, 1);
+
+  TSHttpTxnCntl(http_ctx->txnp, cntl_type, &value);
+
+  lua_pushnumber(L, value);
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_http_cntl.h b/plugins/experimental/ts_lua/ts_lua_http_cntl.h
new file mode 100644
index 00000000..96130845
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http_cntl.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_HTTP_CNTL_H
+#define _TS_LUA_HTTP_CNTL_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_http_cntl_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_http_config.c b/plugins/experimental/ts_lua/ts_lua_http_config.c
new file mode 100644
index 00000000..9209e238
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http_config.c
@@ -0,0 +1,304 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+typedef enum
+{
+  TS_LUA_CONFIG_URL_REMAP_PRISTINE_HOST_HDR = TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR,
+  TS_LUA_CONFIG_HTTP_CHUNKING_ENABLED = TS_CONFIG_HTTP_CHUNKING_ENABLED,
+  TS_LUA_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED = TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED,
+  TS_LUA_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME = TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE,
+  TS_LUA_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE = TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE,
+  TS_LUA_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN = TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN,
+  TS_LUA_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT = TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT,
+  TS_LUA_CONFIG_HTTP_KEEP_ALIVE_POST_OUT = TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT,
+  TS_LUA_CONFIG_HTTP_SHARE_SERVER_SESSIONS = TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS,
+  TS_LUA_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT = TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT,
+  TS_LUA_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT = TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT,
+  TS_LUA_CONFIG_NET_SOCK_OPTION_FLAG_OUT = TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT,
+  TS_LUA_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT = TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT,
+  TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM,
+  TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER,
+  TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT,
+  TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE,
+  TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP,
+  TS_LUA_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP = TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP,
+  TS_LUA_CONFIG_HTTP_RESPONSE_SERVER_ENABLED = TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED,
+  TS_LUA_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR = TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR,
+  TS_LUA_CONFIG_HTTP_SERVER_TCP_INIT_CWND = TS_CONFIG_HTTP_SERVER_TCP_INIT_CWND,
+  TS_LUA_CONFIG_HTTP_SEND_HTTP11_REQUESTS = TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS,
+  TS_LUA_CONFIG_HTTP_CACHE_HTTP = TS_CONFIG_HTTP_CACHE_HTTP,
+  TS_LUA_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL = TS_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL,
+  TS_LUA_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE = TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE,
+  TS_LUA_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE = TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE,
+  TS_LUA_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE = TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE,
+  TS_LUA_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE = TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE,
+  TS_LUA_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES = TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES,
+  TS_LUA_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION = TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION,
+  TS_LUA_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC = TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC,
+  TS_LUA_CONFIG_HTTP_CACHE_REQUIRED_HEADERS = TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS,
+  TS_LUA_CONFIG_HTTP_INSERT_REQUEST_VIA_STR = TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR,
+  TS_LUA_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR = TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR,
+  TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME = TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME,
+  TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME = TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME,
+  TS_LUA_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME = TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME,
+  TS_LUA_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME = TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME,
+  TS_LUA_CONFIG_HTTP_CACHE_MAX_STALE_AGE = TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE,
+  TS_LUA_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN = TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN,
+  TS_LUA_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT = TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT,
+  TS_LUA_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN = TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN,
+  TS_LUA_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT = TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT,
+  TS_LUA_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT = TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT,
+  TS_LUA_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS = TS_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS,
+  TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES,
+  TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER,
+  TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES,
+  TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT,
+  TS_LUA_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT = TS_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT,
+  TS_LUA_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME = TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME,
+  TS_LUA_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD = TS_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD,
+  TS_LUA_CONFIG_HTTP_CACHE_FUZZ_TIME = TS_CONFIG_HTTP_CACHE_FUZZ_TIME,
+  TS_LUA_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME = TS_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME,
+  TS_LUA_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS = TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS,
+  TS_LUA_CONFIG_HTTP_RESPONSE_SERVER_STR = TS_CONFIG_HTTP_RESPONSE_SERVER_STR,
+  TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR = TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR,
+  TS_LUA_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY = TS_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY,
+  TS_LUA_CONFIG_NET_SOCK_PACKET_MARK_OUT = TS_CONFIG_NET_SOCK_PACKET_MARK_OUT,
+  TS_LUA_CONFIG_NET_SOCK_PACKET_TOS_OUT = TS_CONFIG_NET_SOCK_PACKET_TOS_OUT,
+  TS_LUA_CONFIG_LAST_ENTRY = TS_CONFIG_LAST_ENTRY
+} TSLuaOverridableConfigKey;
+
+
+ts_lua_var_item ts_lua_http_config_vars[] = {
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_URL_REMAP_PRISTINE_HOST_HDR),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CHUNKING_ENABLED),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_KEEP_ALIVE_POST_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_SHARE_SERVER_SESSIONS),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_NET_SOCK_OPTION_FLAG_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_RESPONSE_SERVER_ENABLED),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_SERVER_TCP_INIT_CWND),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_SEND_HTTP11_REQUESTS),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_HTTP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_REQUIRED_HEADERS),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_INSERT_REQUEST_VIA_STR),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_MAX_STALE_AGE),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_FUZZ_TIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_RESPONSE_SERVER_STR),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_NET_SOCK_PACKET_MARK_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_NET_SOCK_PACKET_TOS_OUT),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_CONFIG_LAST_ENTRY),
+};
+
+static void ts_lua_inject_http_config_variables(lua_State * L);
+
+static int ts_lua_http_config_int_set(lua_State * L);
+static int ts_lua_http_config_int_get(lua_State * L);
+static int ts_lua_http_config_float_set(lua_State * L);
+static int ts_lua_http_config_float_get(lua_State * L);
+static int ts_lua_http_config_string_set(lua_State * L);
+static int ts_lua_http_config_string_get(lua_State * L);
+
+
+void
+ts_lua_inject_http_config_api(lua_State * L)
+{
+  ts_lua_inject_http_config_variables(L);
+
+  lua_pushcfunction(L, ts_lua_http_config_int_set);
+  lua_setfield(L, -2, "config_int_set");
+
+  lua_pushcfunction(L, ts_lua_http_config_int_get);
+  lua_setfield(L, -2, "config_int_get");
+
+  lua_pushcfunction(L, ts_lua_http_config_float_set);
+  lua_setfield(L, -2, "config_float_set");
+
+  lua_pushcfunction(L, ts_lua_http_config_float_get);
+  lua_setfield(L, -2, "config_float_get");
+
+  lua_pushcfunction(L, ts_lua_http_config_string_set);
+  lua_setfield(L, -2, "config_string_set");
+
+  lua_pushcfunction(L, ts_lua_http_config_string_get);
+  lua_setfield(L, -2, "config_string_get");
+}
+
+static void
+ts_lua_inject_http_config_variables(lua_State * L)
+{
+  int i;
+
+  for (i = 0; i < sizeof(ts_lua_http_config_vars) / sizeof(ts_lua_var_item); i++) {
+    lua_pushinteger(L, ts_lua_http_config_vars[i].nvar);
+    lua_setglobal(L, ts_lua_http_config_vars[i].svar);
+  }
+}
+
+static int
+ts_lua_http_config_int_set(lua_State * L)
+{
+  int conf;
+  int value;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  conf = luaL_checkinteger(L, 1);
+  value = luaL_checkinteger(L, 2);
+
+  TSHttpTxnConfigIntSet(http_ctx->txnp, conf, value);
+
+  return 0;
+}
+
+static int
+ts_lua_http_config_int_get(lua_State * L)
+{
+  int conf;
+  int64_t value;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  conf = luaL_checkinteger(L, 1);
+
+  TSHttpTxnConfigIntGet(http_ctx->txnp, conf, &value);
+
+  lua_pushnumber(L, value);
+
+  return 1;
+}
+
+static int
+ts_lua_http_config_float_set(lua_State * L)
+{
+  int conf;
+  float value;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  conf = luaL_checkinteger(L, 1);
+  value = luaL_checknumber(L, 2);
+
+  TSHttpTxnConfigFloatSet(http_ctx->txnp, conf, value);
+
+  return 0;
+}
+
+static int
+ts_lua_http_config_float_get(lua_State * L)
+{
+  int conf;
+  float value;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  conf = luaL_checkinteger(L, 1);
+
+  TSHttpTxnConfigFloatGet(http_ctx->txnp, conf, &value);
+
+  lua_pushnumber(L, value);
+
+  return 1;
+}
+
+static int
+ts_lua_http_config_string_set(lua_State * L)
+{
+  int conf;
+  const char *value;
+  size_t value_len;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  conf = luaL_checkinteger(L, 1);
+  value = luaL_checklstring(L, 2, &value_len);
+
+  TSHttpTxnConfigStringSet(http_ctx->txnp, conf, value, value_len);
+
+  return 0;
+}
+
+static int
+ts_lua_http_config_string_get(lua_State * L)
+{
+  int conf;
+  const char *value;
+  int value_len;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  conf = luaL_checkinteger(L, 1);
+
+  TSHttpTxnConfigStringGet(http_ctx->txnp, conf, &value, &value_len);
+
+  lua_pushlstring(L, value, value_len);
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_http_config.h b/plugins/experimental/ts_lua/ts_lua_http_config.h
new file mode 100644
index 00000000..0cf00f83
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http_config.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_HTTP_CONFIG_H
+#define _TS_LUA_HTTP_CONFIG_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_http_config_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_http_intercept.c b/plugins/experimental/ts_lua/ts_lua_http_intercept.c
new file mode 100644
index 00000000..6693d7c1
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http_intercept.c
@@ -0,0 +1,335 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+#define TS_LUA_FUNCTION_HTTP_INTERCEPT            "do_intercept"
+#define TS_LUA_FUNCTION_HTTP_SERVER_INTERCEPT     "do_server_intercept"
+
+typedef enum
+{
+  TS_LUA_TYPE_HTTP_INTERCEPT = 0,
+  TS_LUA_TYPE_HTTP_SERVER_INTERCEPT = 1
+} TSInterceptType;
+
+static int ts_lua_http_intercept(lua_State * L);
+static int ts_lua_http_server_intercept(lua_State * L);
+static int ts_lua_http_intercept_entry(TSCont contp, TSEvent event, void *edata);
+static void ts_lua_http_intercept_process(ts_lua_http_ctx * http_ctx, TSVConn conn);
+static void ts_lua_http_intercept_setup_read(ts_lua_http_intercept_ctx * ictx);
+static void ts_lua_http_intercept_setup_write(ts_lua_http_intercept_ctx * ictx);
+static int ts_lua_http_intercept_handler(TSCont contp, TSEvent event, void *edata);
+static int ts_lua_http_intercept_run_coroutine(ts_lua_http_intercept_ctx * ictx, int n);
+static int ts_lua_http_intercept_process_read(TSEvent event, ts_lua_http_intercept_ctx * ictx);
+static int ts_lua_http_intercept_process_write(TSEvent event, ts_lua_http_intercept_ctx * ictx);
+
+extern int ts_lua_flush_launch(ts_lua_http_intercept_ctx * ictx);
+
+
+void
+ts_lua_inject_http_intercept_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_http_intercept);
+  lua_setfield(L, -2, "intercept");
+
+  lua_pushcfunction(L, ts_lua_http_server_intercept);
+  lua_setfield(L, -2, "server_intercept");
+}
+
+static int
+ts_lua_http_intercept(lua_State * L)
+{
+  TSCont contp;
+  int type;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+  http_ctx->has_hook = 1;
+
+  type = lua_type(L, 1);
+
+  if (type != LUA_TFUNCTION) {
+    TSError("[%s] param in ts.http.intercept should be a function", __FUNCTION__);
+    return 0;
+  }
+
+  lua_pushvalue(L, 1);
+  lua_setglobal(L, TS_LUA_FUNCTION_HTTP_INTERCEPT);
+
+  http_ctx->intercept_type = TS_LUA_TYPE_HTTP_INTERCEPT;
+
+  contp = TSContCreate(ts_lua_http_intercept_entry, TSMutexCreate());
+  TSContDataSet(contp, http_ctx);
+  TSHttpTxnIntercept(contp, http_ctx->txnp);
+
+  return 0;
+}
+
+static int
+ts_lua_http_server_intercept(lua_State * L)
+{
+  TSCont contp;
+  int type;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+  http_ctx->has_hook = 1;
+
+  type = lua_type(L, 1);
+
+  if (type != LUA_TFUNCTION) {
+    TSError("[%s] param in ts.http.server_intercept should be a function", __FUNCTION__);
+    return 0;
+  }
+
+  lua_pushvalue(L, 1);
+  lua_setglobal(L, TS_LUA_FUNCTION_HTTP_SERVER_INTERCEPT);
+
+  http_ctx->intercept_type = TS_LUA_TYPE_HTTP_SERVER_INTERCEPT;
+
+  contp = TSContCreate(ts_lua_http_intercept_entry, TSMutexCreate());
+  TSContDataSet(contp, http_ctx);
+  TSHttpTxnServerIntercept(contp, http_ctx->txnp);
+
+  return 0;
+}
+
+
+static int
+ts_lua_http_intercept_entry(TSCont contp, TSEvent event, void *edata)
+{
+  switch (event) {
+
+  case TS_EVENT_NET_ACCEPT_FAILED:
+    if (edata)
+      TSVConnClose((TSVConn) edata);
+    break;
+
+  case TS_EVENT_NET_ACCEPT:
+    ts_lua_http_intercept_process((ts_lua_http_ctx *) TSContDataGet(contp), (TSVConn) edata);
+    break;
+
+  default:
+    break;
+  }
+
+  TSContDestroy(contp);
+  return 0;
+}
+
+static void
+ts_lua_http_intercept_process(ts_lua_http_ctx * http_ctx, TSVConn conn)
+{
+  TSCont contp;
+  lua_State *l;
+  TSMutex mtxp;
+  ts_lua_http_intercept_ctx *ictx;
+
+  mtxp = http_ctx->mctx->mutexp;
+  TSMutexLock(mtxp);
+
+  ictx = ts_lua_create_http_intercept_ctx(http_ctx);
+
+  contp = TSContCreate(ts_lua_http_intercept_handler, TSMutexCreate());
+  TSContDataSet(contp, ictx);
+
+  ictx->contp = contp;
+  ictx->net_vc = conn;
+
+  l = ictx->lua;
+
+  // set up read.
+  ts_lua_http_intercept_setup_read(ictx);
+
+  // set up write.
+  ts_lua_http_intercept_setup_write(ictx);
+
+  // invoke function here
+  if (http_ctx->intercept_type == TS_LUA_TYPE_HTTP_INTERCEPT) {
+    lua_getglobal(l, TS_LUA_FUNCTION_HTTP_INTERCEPT);
+  } else {
+    lua_getglobal(l, TS_LUA_FUNCTION_HTTP_SERVER_INTERCEPT);
+  }
+
+  ts_lua_http_intercept_run_coroutine(ictx, 0);
+
+  TSMutexUnlock(mtxp);
+
+}
+
+static void
+ts_lua_http_intercept_setup_read(ts_lua_http_intercept_ctx * ictx)
+{
+  ictx->input.buffer = TSIOBufferCreate();
+  ictx->input.reader = TSIOBufferReaderAlloc(ictx->input.buffer);
+  ictx->input.vio = TSVConnRead(ictx->net_vc, ictx->contp, ictx->input.buffer, INT64_MAX);
+}
+
+static void
+ts_lua_http_intercept_setup_write(ts_lua_http_intercept_ctx * ictx)
+{
+  ictx->output.buffer = TSIOBufferCreate();
+  ictx->output.reader = TSIOBufferReaderAlloc(ictx->output.buffer);
+  ictx->output.vio = TSVConnWrite(ictx->net_vc, ictx->contp, ictx->output.reader, INT64_MAX);
+}
+
+static int
+ts_lua_http_intercept_handler(TSCont contp, TSEvent event, void *edata)
+{
+  int ret, n;
+  TSMutex mtxp;
+  ts_lua_http_intercept_ctx *ictx;
+
+  ictx = (ts_lua_http_intercept_ctx *) TSContDataGet(contp);
+  mtxp = NULL;
+
+  if (edata == ictx->input.vio) {
+    ret = ts_lua_http_intercept_process_read(event, ictx);
+
+  } else if (edata == ictx->output.vio) {
+    ret = ts_lua_http_intercept_process_write(event, ictx);
+
+  } else {
+    mtxp = ictx->mctx->mutexp;
+    n = (int64_t) edata & 0xFFFF;
+    TSMutexLock(mtxp);
+    ret = ts_lua_http_intercept_run_coroutine(ictx, n);
+  }
+
+  if (ret || (ictx->send_complete && ictx->recv_complete)) {
+
+    TSContDestroy(contp);
+
+    if (!mtxp) {
+      mtxp = ictx->mctx->mutexp;
+      TSMutexLock(mtxp);
+    }
+
+    ts_lua_destroy_http_intercept_ctx(ictx);
+  }
+
+  if (mtxp)
+    TSMutexUnlock(mtxp);
+
+  return 0;
+}
+
+static int
+ts_lua_http_intercept_run_coroutine(ts_lua_http_intercept_ctx * ictx, int n)
+{
+  int ret;
+  int64_t avail;
+  int64_t done;
+  lua_State *L;
+
+  L = ictx->lua;
+
+  ret = lua_resume(L, n);
+
+  switch (ret) {
+
+  case 0:                      // finished
+    avail = TSIOBufferReaderAvail(ictx->output.reader);
+    done = TSVIONDoneGet(ictx->output.vio);
+    TSVIONBytesSet(ictx->output.vio, avail + done);
+    ictx->all_ready = 1;
+
+    if (avail) {
+      TSVIOReenable(ictx->output.vio);
+
+    } else {
+      ictx->send_complete = 1;
+    }
+    break;
+
+  case 1:                      // yield
+    break;
+
+  default:                     // error
+    TSError("lua_resume failed: %s", lua_tostring(L, -1));
+    return -1;
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_http_intercept_process_read(TSEvent event, ts_lua_http_intercept_ctx * ictx)
+{
+  int64_t avail = TSIOBufferReaderAvail(ictx->input.reader);
+  TSIOBufferReaderConsume(ictx->input.reader, avail);
+
+  switch (event) {
+
+  case TS_EVENT_VCONN_READ_READY:
+    TSVConnShutdown(ictx->net_vc, 1, 0);
+
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+    ictx->recv_complete = 1;
+    break;
+
+  default:
+    return -1;
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_http_intercept_process_write(TSEvent event, ts_lua_http_intercept_ctx * ictx)
+{
+  int64_t done, avail;
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+
+    avail = TSIOBufferReaderAvail(ictx->output.reader);
+
+    if (ictx->all_ready) {
+      TSVIOReenable(ictx->output.vio);
+
+    } else if (ictx->to_flush > 0) {    // ts.flush()
+
+      done = TSVIONDoneGet(ictx->output.vio);
+
+      if (ictx->to_flush > done) {
+        TSVIOReenable(ictx->output.vio);
+
+      } else {                  // we had flush all the data we want
+        ictx->to_flush = 0;
+        ts_lua_flush_launch(ictx);      // wake up
+      }
+
+    } else if (avail > 0) {
+      TSVIOReenable(ictx->output.vio);
+    }
+    break;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    ictx->send_complete = 1;
+    break;
+
+  case TS_EVENT_ERROR:
+  default:
+    return -1;
+  }
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_http_intercept.h b/plugins/experimental/ts_lua/ts_lua_http_intercept.h
new file mode 100644
index 00000000..2403e111
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_http_intercept.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_HTTP_INTERCEPT_H
+#define _TS_LUA_HTTP_INTERCEPT_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_http_intercept_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_log.c b/plugins/experimental/ts_lua/ts_lua_log.c
new file mode 100644
index 00000000..b0861c25
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_log.c
@@ -0,0 +1,116 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+static TSTextLogObject log;
+
+static int ts_lua_log_object_creat(lua_State * L);
+static int ts_lua_log_object_write(lua_State * L);
+static int ts_lua_log_object_destroy(lua_State * L);
+
+
+static void ts_lua_inject_log_object_creat_api(lua_State * L);
+static void ts_lua_inject_log_object_write_api(lua_State * L);
+static void ts_lua_inject_log_object_destroy_api(lua_State * L);
+
+void
+ts_lua_inject_log_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_log_object_creat_api(L);
+  ts_lua_inject_log_object_write_api(L);
+  ts_lua_inject_log_object_destroy_api(L);
+
+  lua_setfield(L, -2, "log");
+}
+
+static void
+ts_lua_inject_log_object_creat_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_log_object_creat);
+  lua_setfield(L, -2, "object_creat");
+}
+
+static int
+ts_lua_log_object_creat(lua_State * L)
+{
+  const char *log_name;
+  size_t name_len;
+  int log_mode;
+  TSReturnCode error;
+
+  log_name = luaL_checklstring(L, -2, &name_len);
+
+  if (lua_isnil(L, 3)) {
+    TSError("no log name!!");
+    return -1;
+  } else {
+    log_mode = luaL_checknumber(L, 3);
+
+  }
+
+  error = TSTextLogObjectCreate(log_name, log_mode, &log);
+
+  if (!log || error == TS_ERROR) {
+    TSError("creat log error <%s>", log_name);
+    return -1;
+  }
+  return 0;
+}
+
+static void
+ts_lua_inject_log_object_write_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_log_object_write);
+  lua_setfield(L, -2, "object_write");
+}
+
+static int
+ts_lua_log_object_write(lua_State * L)
+{
+  const char *text;
+  size_t text_len;
+
+  text = luaL_checklstring(L, 1, &text_len);
+  if (log) {
+    TSTextLogObjectWrite(log, (char *) text, NULL);
+  } else {
+    TSError("[%s] log is not exsited!", __FUNCTION__);
+  }
+
+  return 0;
+}
+
+static void
+ts_lua_inject_log_object_destroy_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_log_object_destroy);
+  lua_setfield(L, -2, "object_destroy");
+}
+
+static int
+ts_lua_log_object_destroy(lua_State * L ATS_UNUSED)
+{
+  if (TSTextLogObjectDestroy(log) != TS_SUCCESS)
+    TSError("[%s] TSTextLogObjectDestroy error!", __FUNCTION__);
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_log.h b/plugins/experimental/ts_lua/ts_lua_log.h
new file mode 100644
index 00000000..4029c2d8
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_log.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_LOG_H
+#define _TS_LUA_LOG_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_log_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_mgmt.c b/plugins/experimental/ts_lua/ts_lua_mgmt.c
new file mode 100644
index 00000000..4cbbc83e
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_mgmt.c
@@ -0,0 +1,106 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+static int ts_lua_mgmt_get_int(lua_State * L);
+static int ts_lua_mgmt_get_counter(lua_State * L);
+static int ts_lua_mgmt_get_float(lua_State * L);
+static int ts_lua_mgmt_get_string(lua_State * L);
+
+
+void
+ts_lua_inject_mgmt_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  lua_pushcfunction(L, ts_lua_mgmt_get_int);
+  lua_setfield(L, -2, "get_int");
+
+  lua_pushcfunction(L, ts_lua_mgmt_get_counter);
+  lua_setfield(L, -2, "get_counter");
+
+  lua_pushcfunction(L, ts_lua_mgmt_get_float);
+  lua_setfield(L, -2, "get_float");
+
+  lua_pushcfunction(L, ts_lua_mgmt_get_string);
+  lua_setfield(L, -2, "get_string");
+
+  lua_setfield(L, -2, "mgmt");
+}
+
+static int
+ts_lua_mgmt_get_int(lua_State * L)
+{
+  const char *name;
+  size_t name_len;
+  TSMgmtInt int_val;
+
+  name = luaL_checklstring(L, 1, &name_len);
+  TSMgmtIntGet(name, &int_val);
+
+  lua_pushinteger(L, int_val);
+
+  return 1;
+}
+
+static int
+ts_lua_mgmt_get_counter(lua_State * L)
+{
+  const char *name;
+  size_t name_len;
+  TSMgmtCounter counter_val;
+
+  name = luaL_checklstring(L, 1, &name_len);
+  TSMgmtCounterGet(name, &counter_val);
+
+  lua_pushinteger(L, counter_val);
+
+  return 1;
+}
+
+static int
+ts_lua_mgmt_get_float(lua_State * L)
+{
+  const char *name;
+  size_t name_len;
+  TSMgmtFloat float_val;
+
+  name = luaL_checklstring(L, 1, &name_len);
+  TSMgmtFloatGet(name, &float_val);
+
+  lua_pushnumber(L, float_val);
+
+  return 1;
+}
+
+static int
+ts_lua_mgmt_get_string(lua_State * L)
+{
+  const char *name;
+  size_t name_len;
+  TSMgmtString str_val;
+
+  name = luaL_checklstring(L, 1, &name_len);
+  TSMgmtStringGet(name, &str_val);
+
+  lua_pushstring(L, str_val);
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_mgmt.h b/plugins/experimental/ts_lua/ts_lua_mgmt.h
new file mode 100644
index 00000000..d6d79e0c
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_mgmt.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_MGMT_H
+#define _TS_LUA_MGMT_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_mgmt_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_misc.c b/plugins/experimental/ts_lua/ts_lua_misc.c
new file mode 100644
index 00000000..f20a1dfb
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_misc.c
@@ -0,0 +1,230 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+
+static int ts_lua_get_now_time(lua_State * L);
+static int ts_lua_debug(lua_State * L);
+static int ts_lua_error(lua_State * L);
+static int ts_lua_sleep(lua_State * L);
+static int ts_lua_say(lua_State * L);
+static int ts_lua_flush(lua_State * L);
+
+static int ts_lua_sleep_cleanup(struct ict_item *item);
+static int ts_lua_sleep_handler(TSCont contp, TSEvent event, void *edata);
+
+int ts_lua_flush_launch(ts_lua_http_intercept_ctx * ictx);
+static int ts_lua_flush_cleanup(struct ict_item *item);
+static int ts_lua_flush_handler(TSCont contp, TSEvent event, void *edata);
+
+
+void
+ts_lua_inject_misc_api(lua_State * L)
+{
+  /* ts.now() */
+  lua_pushcfunction(L, ts_lua_get_now_time);
+  lua_setfield(L, -2, "now");
+
+  /* ts.debug(...) */
+  lua_pushcfunction(L, ts_lua_debug);
+  lua_setfield(L, -2, "debug");
+
+  /* ts.error(...) */
+  lua_pushcfunction(L, ts_lua_error);
+  lua_setfield(L, -2, "error");
+
+  /* ts.sleep(...) */
+  lua_pushcfunction(L, ts_lua_sleep);
+  lua_setfield(L, -2, "sleep");
+
+  /* ts.say(...) */
+  lua_pushcfunction(L, ts_lua_say);
+  lua_setfield(L, -2, "say");
+
+  /* ts.flush(...) */
+  lua_pushcfunction(L, ts_lua_flush);
+  lua_setfield(L, -2, "flush");
+}
+
+static int
+ts_lua_get_now_time(lua_State * L)
+{
+  time_t now;
+
+  now = TShrtime() / 1000000000;
+  lua_pushnumber(L, now);
+  return 1;
+}
+
+static int
+ts_lua_debug(lua_State * L)
+{
+  const char *msg;
+
+  msg = luaL_checkstring(L, 1);
+  TSDebug(TS_LUA_DEBUG_TAG, msg, NULL);
+  return 0;
+}
+
+static int
+ts_lua_error(lua_State * L)
+{
+  const char *msg;
+
+  msg = luaL_checkstring(L, 1);
+  TSError(msg, NULL);
+  return 0;
+}
+
+static int
+ts_lua_sleep(lua_State * L)
+{
+  int sec;
+  TSAction action;
+  TSCont contp;
+  ts_lua_http_intercept_item *node;
+  ts_lua_http_intercept_ctx *ictx;
+
+  ictx = ts_lua_get_http_intercept_ctx(L);
+  sec = luaL_checknumber(L, 1);
+
+  contp = TSContCreate(ts_lua_sleep_handler, TSContMutexGet(ictx->contp));
+  action = TSContSchedule(contp, sec * 1000, TS_THREAD_POOL_DEFAULT);
+
+  node = (ts_lua_http_intercept_item *) TSmalloc(sizeof(ts_lua_http_intercept_item));
+  TS_LUA_ADD_INTERCEPT_ITEM(ictx, node, contp, ts_lua_sleep_cleanup, action);
+  TSContDataSet(contp, node);
+
+  return lua_yield(L, 0);
+}
+
+static int
+ts_lua_say(lua_State * L)
+{
+  const char *data;
+  size_t len;
+
+  ts_lua_http_intercept_ctx *ictx;
+
+  ictx = ts_lua_get_http_intercept_ctx(L);
+
+  data = luaL_checklstring(L, 1, &len);
+
+  if (len > 0) {
+    TSIOBufferWrite(ictx->output.buffer, data, len);
+    TSVIOReenable(ictx->output.vio);
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_flush(lua_State * L)
+{
+  int64_t avail;
+  ts_lua_http_intercept_ctx *ictx;
+
+  ictx = ts_lua_get_http_intercept_ctx(L);
+  avail = TSIOBufferReaderAvail(ictx->output.reader);
+
+  if (avail > 0) {
+    ictx->to_flush = TSVIONDoneGet(ictx->output.vio) + TSIOBufferReaderAvail(ictx->output.reader);
+    TSVIOReenable(ictx->output.vio);
+
+    return lua_yield(L, 0);
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_sleep_handler(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  ts_lua_http_intercept_item *item = TSContDataGet(contp);
+
+  ts_lua_sleep_cleanup(item);
+
+  TSContCall(item->ictx->contp, event, 0);
+
+  return 0;
+}
+
+static int
+ts_lua_sleep_cleanup(struct ict_item *item)
+{
+  if (item->deleted)
+    return 0;
+
+  if (item->data) {
+    TSActionCancel((TSAction) item->data);
+    item->data = NULL;
+  }
+
+  TSContDestroy(item->contp);
+  item->deleted = 1;
+
+  return 0;
+}
+
+int
+ts_lua_flush_launch(ts_lua_http_intercept_ctx * ictx)
+{
+  TSAction action;
+  TSCont contp;
+  ts_lua_http_intercept_item *node;
+
+  contp = TSContCreate(ts_lua_flush_handler, TSContMutexGet(ictx->contp));
+  action = TSContSchedule(contp, 0, TS_THREAD_POOL_DEFAULT);
+
+  node = (ts_lua_http_intercept_item *) TSmalloc(sizeof(ts_lua_http_intercept_item));
+  TS_LUA_ADD_INTERCEPT_ITEM(ictx, node, contp, ts_lua_flush_cleanup, action);
+  TSContDataSet(contp, node);
+
+  return 0;
+}
+
+static int
+ts_lua_flush_cleanup(struct ict_item *item)
+{
+  if (item->deleted)
+    return 0;
+
+  if (item->data) {
+    TSActionCancel((TSAction) item->data);
+    item->data = NULL;
+  }
+
+  TSContDestroy(item->contp);
+  item->deleted = 1;
+
+  return 0;
+}
+
+static int
+ts_lua_flush_handler(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  ts_lua_http_intercept_item *item = TSContDataGet(contp);
+
+  ts_lua_flush_cleanup(item);
+
+  TSContCall(item->ictx->contp, event, 0);
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_misc.h b/plugins/experimental/ts_lua/ts_lua_misc.h
new file mode 100644
index 00000000..3ce86cc3
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_misc.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_MISC_H
+#define _TS_LUA_MISC_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_misc_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_package.c b/plugins/experimental/ts_lua/ts_lua_package.c
new file mode 100644
index 00000000..ab5096d2
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_package.c
@@ -0,0 +1,297 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+#define TS_LUA_MAX_PACKAGE_PATH_LEN     256
+#define TS_LUA_MAX_PACKAGE_NUM          64
+
+
+typedef struct
+{
+  size_t len;
+  char *name;
+} ts_lua_package_path;
+
+
+static int g_path_cnt = 0;
+static ts_lua_package_path g_path[TS_LUA_MAX_PACKAGE_NUM];
+
+static int g_cpath_cnt = 0;
+static ts_lua_package_path g_cpath[TS_LUA_MAX_PACKAGE_NUM];
+
+
+static int ts_lua_add_package_path(lua_State * L);
+static int ts_lua_add_package_cpath(lua_State * L);
+static int ts_lua_add_package_path_items(lua_State * L, ts_lua_package_path * pp, int n);
+static int ts_lua_add_package_cpath_items(lua_State * L, ts_lua_package_path * pp, int n);
+
+
+void
+ts_lua_inject_package_api(lua_State * L)
+{
+  /* ts.add_package_path() */
+  lua_pushcfunction(L, ts_lua_add_package_path);
+  lua_setfield(L, -2, "add_package_path");
+
+  /* ts.add_package_cpath(...) */
+  lua_pushcfunction(L, ts_lua_add_package_cpath);
+  lua_setfield(L, -2, "add_package_cpath");
+}
+
+static int
+ts_lua_add_package_path(lua_State * L)
+{
+  ts_lua_instance_conf *conf;
+  const char *data;
+  const char *ptr, *end, *hit;
+  size_t dlen;
+  size_t i, n, item_len;
+  ts_lua_package_path pp[TS_LUA_MAX_PACKAGE_NUM];
+  ts_lua_package_path *elt;
+
+  conf = ts_lua_get_instance_conf(L);
+  if (conf == NULL) {
+    return luaL_error(L, "cann't get the instance conf.");
+  }
+
+  data = luaL_checklstring(L, 1, &dlen);
+  end = data + dlen;
+
+  ptr = data;
+  n = 0;
+
+  while (ptr < end) {
+    hit = memchr(ptr, ';', end - ptr);
+
+    if (hit) {
+      item_len = hit - ptr;
+
+    } else {
+      item_len = end - ptr;
+    }
+
+    if (item_len > 0) {
+
+      for (i = 0; i < g_path_cnt; i++) {
+        if (g_path[i].len == item_len && memcmp(g_path[i].name, ptr, item_len) == 0)    // exist
+        {
+          break;
+        }
+      }
+
+      if (i >= g_path_cnt) {
+
+        if (n + i >= TS_LUA_MAX_PACKAGE_NUM)
+          return luaL_error(L, "extended package path number exceeds %d.", TS_LUA_MAX_PACKAGE_NUM);
+
+        pp[n].name = (char *) ptr;
+        pp[n].len = item_len;
+        n++;
+      }
+    }
+
+    ptr += item_len + 1;        // ??
+  }
+
+  if (n > 0) {
+    ts_lua_add_package_path_items(L, pp, n);
+
+    if (conf->_last) {
+      elt = &g_path[g_path_cnt];
+
+      for (i = 0; i < n; i++) {
+        elt->len = pp[i].len;
+        elt->name = (char *) TSmalloc(pp[i].len);
+        memcpy(elt->name, pp[i].name, pp[i].len);
+        elt++;
+      }
+
+      g_path_cnt += n;
+    }
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_add_package_path_items(lua_State * L, ts_lua_package_path * pp, int n)
+{
+  int i, base;
+  const char *old_path;
+  char new_path[2048];
+  size_t old_path_len, new_path_len;
+
+  base = lua_gettop(L);
+
+  lua_getglobal(L, "package");
+
+  if (!lua_istable(L, -1)) {
+    return luaL_error(L, "'package' table does not exist.");
+  }
+
+  lua_getfield(L, -1, "path");  /* get old package.path */
+
+  old_path = lua_tolstring(L, -1, &old_path_len);
+  if (old_path[old_path_len - 1] == ';')
+    old_path_len--;
+
+  new_path_len = snprintf(new_path, sizeof(new_path) - 32, "%.*s", (int) old_path_len, old_path);
+
+  for (i = 0; i < n; i++) {
+    if (new_path_len + pp[i].len + 1 >= sizeof(new_path)) {
+      TSError("extended package.path is too long.");
+      return -1;
+    }
+
+    new_path[new_path_len++] = ';';
+    memcpy(new_path + new_path_len, pp[i].name, pp[i].len);
+    new_path_len += pp[i].len;
+  }
+
+  new_path[new_path_len] = 0;
+
+  lua_pushlstring(L, new_path, new_path_len);
+  lua_setfield(L, -3, "path");
+
+  lua_settop(L, base);
+
+  return 0;
+}
+
+
+static int
+ts_lua_add_package_cpath(lua_State * L)
+{
+  ts_lua_instance_conf *conf;
+  const char *data;
+  const char *ptr, *end, *hit;
+  size_t dlen;
+  size_t i, n, item_len;
+  ts_lua_package_path pp[TS_LUA_MAX_PACKAGE_NUM];
+  ts_lua_package_path *elt;
+
+  conf = ts_lua_get_instance_conf(L);
+  if (conf == NULL) {
+    return luaL_error(L, "cann't get the instance conf.");
+  }
+
+  data = luaL_checklstring(L, 1, &dlen);
+  end = data + dlen;
+
+  ptr = data;
+  n = 0;
+
+  while (ptr < end) {
+    hit = memchr(ptr, ';', end - ptr);
+
+    if (hit) {
+      item_len = hit - ptr;
+
+    } else {
+      item_len = end - ptr;
+    }
+
+    if (item_len > 0) {
+
+      for (i = 0; i < g_cpath_cnt; i++) {
+        if (g_cpath[i].len == item_len && memcmp(g_cpath[i].name, ptr, item_len) == 0)  // exist
+        {
+          break;
+        }
+      }
+
+      if (i >= g_cpath_cnt) {
+
+        if (n + i >= TS_LUA_MAX_PACKAGE_NUM)
+          return luaL_error(L, "extended package cpath number exceeds %d.", TS_LUA_MAX_PACKAGE_NUM);
+
+        pp[n].name = (char *) ptr;
+        pp[n].len = item_len;
+        n++;
+      }
+    }
+
+    ptr += item_len + 1;        // ??
+  }
+
+  if (n > 0) {
+    ts_lua_add_package_cpath_items(L, pp, n);
+
+    if (conf->_last) {
+      elt = &g_cpath[g_cpath_cnt];
+
+      for (i = 0; i < n; i++) {
+        elt->len = pp[i].len;
+        elt->name = (char *) TSmalloc(pp[i].len);
+        memcpy(elt->name, pp[i].name, pp[i].len);
+        elt++;
+      }
+
+      g_cpath_cnt += n;
+    }
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_add_package_cpath_items(lua_State * L, ts_lua_package_path * pp, int n)
+{
+  int i, base;
+  const char *old_path;
+  char new_path[2048];
+  size_t old_path_len, new_path_len;
+
+  base = lua_gettop(L);
+
+  lua_getglobal(L, "package");
+
+  if (!lua_istable(L, -1)) {
+    return luaL_error(L, "'package' table does not exist.");
+  }
+
+  lua_getfield(L, -1, "cpath"); /* get old package.cpath */
+
+  old_path = lua_tolstring(L, -1, &old_path_len);
+  if (old_path[old_path_len - 1] == ';')
+    old_path_len--;
+
+  new_path_len = snprintf(new_path, sizeof(new_path) - 32, "%.*s", (int) old_path_len, old_path);
+
+  for (i = 0; i < n; i++) {
+    if (new_path_len + pp[i].len + 1 >= sizeof(new_path)) {
+      TSError("extended package.cpath is too long.");
+      return -1;
+    }
+
+    new_path[new_path_len++] = ';';
+    memcpy(new_path + new_path_len, pp[i].name, pp[i].len);
+    new_path_len += pp[i].len;
+  }
+
+  new_path[new_path_len] = 0;
+
+  lua_pushlstring(L, new_path, new_path_len);
+  lua_setfield(L, -3, "cpath");
+
+  lua_settop(L, base);
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_package.h b/plugins/experimental/ts_lua/ts_lua_package.h
new file mode 100644
index 00000000..ae5a4676
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_package.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_PACKAGE_H
+#define _TS_LUA_PACKAGE_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_package_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_remap.c b/plugins/experimental/ts_lua/ts_lua_remap.c
new file mode 100644
index 00000000..4df7ccf1
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_remap.c
@@ -0,0 +1,59 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_remap.h"
+
+
+typedef enum
+{
+  TS_LUA_REMAP_NO_REMAP = TSREMAP_NO_REMAP,
+  TS_LUA_REMAP_DID_REMAP = TSREMAP_DID_REMAP,
+  TS_LUA_REMAP_NO_REMAP_STOP = TSREMAP_NO_REMAP_STOP,
+  TS_LUA_REMAP_DID_REMAP_STOP = TSREMAP_DID_REMAP_STOP,
+  TS_LUA_REMAP_ERROR = TSREMAP_ERROR
+} TSLuaRemapStatus;
+
+ts_lua_var_item ts_lua_remap_status_vars[] = {
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_REMAP_NO_REMAP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_REMAP_DID_REMAP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_REMAP_NO_REMAP_STOP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_REMAP_DID_REMAP_STOP),
+  TS_LUA_MAKE_VAR_ITEM(TS_LUA_REMAP_ERROR)
+};
+
+
+static void ts_lua_inject_remap_variables(lua_State * L);
+
+
+void
+ts_lua_inject_remap_api(lua_State * L)
+{
+  ts_lua_inject_remap_variables(L);
+}
+
+static void
+ts_lua_inject_remap_variables(lua_State * L)
+{
+  int i;
+
+  for (i = 0; i < sizeof(ts_lua_remap_status_vars) / sizeof(ts_lua_var_item); i++) {
+    lua_pushinteger(L, ts_lua_remap_status_vars[i].nvar);
+    lua_setglobal(L, ts_lua_remap_status_vars[i].svar);
+  }
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_remap.h b/plugins/experimental/ts_lua/ts_lua_remap.h
new file mode 100644
index 00000000..ef24ac2f
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_remap.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_REMAP_H
+#define _TS_LUA_REMAP_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_remap_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_server_request.c b/plugins/experimental/ts_lua/ts_lua_server_request.c
new file mode 100644
index 00000000..4f43ea4c
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_server_request.c
@@ -0,0 +1,404 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include <arpa/inet.h>
+#include "ts_lua_util.h"
+
+#define TS_LUA_CHECK_SERVER_REQUEST_HDR(http_ctx)     \
+do {        \
+    if (!http_ctx->server_request_hdrp) {           \
+        if (TSHttpTxnServerReqGet(http_ctx->txnp,   \
+                    &http_ctx->server_request_bufp, \
+                    &http_ctx->server_request_hdrp) != TS_SUCCESS) {    \
+            return 0;   \
+        }   \
+    }   \
+} while(0)
+
+
+#define TS_LUA_CHECK_SERVER_REQUEST_URL(http_ctx)   \
+do {        \
+    if (!http_ctx->server_request_url) {            \
+        TS_LUA_CHECK_SERVER_REQUEST_HDR(http_ctx);  \
+        if (TSHttpHdrUrlGet(http_ctx->server_request_bufp,   \
+                    http_ctx->server_request_hdrp, \
+                    &http_ctx->server_request_url) != TS_SUCCESS) {    \
+            return 0;   \
+        }   \
+    }   \
+} while(0)
+
+
+static void ts_lua_inject_server_request_header_api(lua_State * L);
+static void ts_lua_inject_server_request_headers_api(lua_State * L);
+static void ts_lua_inject_server_request_get_header_size_api(lua_State * L);
+static void ts_lua_inject_server_request_get_body_size_api(lua_State * L);
+static void ts_lua_inject_server_request_uri_api(lua_State * L);
+static void ts_lua_inject_server_request_uri_args_api(lua_State * L);
+
+static int ts_lua_server_request_header_get(lua_State * L);
+static int ts_lua_server_request_header_set(lua_State * L);
+static int ts_lua_server_request_get_headers(lua_State * L);
+static int ts_lua_server_request_get_header_size(lua_State * L);
+static int ts_lua_server_request_get_body_size(lua_State * L);
+static int ts_lua_server_request_get_uri(lua_State * L);
+static int ts_lua_server_request_set_uri(lua_State * L);
+static int ts_lua_server_request_set_uri_args(lua_State * L);
+static int ts_lua_server_request_get_uri_args(lua_State * L);
+
+
+void
+ts_lua_inject_server_request_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_server_request_header_api(L);
+  ts_lua_inject_server_request_headers_api(L);
+  ts_lua_inject_server_request_get_header_size_api(L);
+  ts_lua_inject_server_request_get_body_size_api(L);
+
+  ts_lua_inject_server_request_uri_api(L);
+  ts_lua_inject_server_request_uri_args_api(L);
+
+  lua_setfield(L, -2, "server_request");
+}
+
+
+static void
+ts_lua_inject_server_request_header_api(lua_State * L)
+{
+  lua_newtable(L);              /* .header */
+
+  lua_createtable(L, 0, 2);     /* metatable for .header */
+
+  lua_pushcfunction(L, ts_lua_server_request_header_get);
+  lua_setfield(L, -2, "__index");
+  lua_pushcfunction(L, ts_lua_server_request_header_set);
+  lua_setfield(L, -2, "__newindex");
+
+  lua_setmetatable(L, -2);
+
+  lua_setfield(L, -2, "header");
+}
+
+static int
+ts_lua_server_request_header_get(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  int val_len;
+  size_t key_len;
+
+  TSMLoc field_loc;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  /*  we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+
+  if (!http_ctx->server_request_hdrp) {
+    if (TSHttpTxnServerReqGet(http_ctx->txnp,
+                              &http_ctx->server_request_bufp, &http_ctx->server_request_hdrp) != TS_SUCCESS) {
+
+      lua_pushnil(L);
+      return 1;
+    }
+  }
+
+  if (key && key_len) {
+
+    field_loc = TSMimeHdrFieldFind(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, key, key_len);
+    if (field_loc) {
+      val =
+        TSMimeHdrFieldValueStringGet(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc, -1,
+                                     &val_len);
+      lua_pushlstring(L, val, val_len);
+      TSHandleMLocRelease(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc);
+
+    } else {
+      lua_pushnil(L);
+    }
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_server_request_header_set(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  size_t val_len;
+  size_t key_len;
+  int remove;
+
+  TSMLoc field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  remove = 0;
+  val = NULL;
+
+  /*   we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+  if (lua_isnil(L, 3)) {
+    remove = 1;
+  } else {
+    val = luaL_checklstring(L, 3, &val_len);
+  }
+
+  if (!http_ctx->server_request_hdrp) {
+    if (TSHttpTxnServerReqGet(http_ctx->txnp,
+                              &http_ctx->server_request_bufp, &http_ctx->server_request_hdrp) != TS_SUCCESS) {
+      return 0;
+    }
+  }
+
+  field_loc = TSMimeHdrFieldFind(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, key, key_len);
+
+  if (remove) {
+    if (field_loc) {
+      TSMimeHdrFieldDestroy(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc);
+    }
+
+  } else if (field_loc) {
+    TSMimeHdrFieldValueStringSet(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc, 0, val,
+                                 val_len);
+
+  } else if (TSMimeHdrFieldCreateNamed(http_ctx->server_request_bufp, http_ctx->server_request_hdrp,
+                                       key, key_len, &field_loc) != TS_SUCCESS) {
+    TSError("[%s] TSMimeHdrFieldCreateNamed error", __FUNCTION__);
+    return 0;
+
+  } else {
+    TSMimeHdrFieldValueStringSet(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc, -1, val,
+                                 val_len);
+    TSMimeHdrFieldAppend(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc);
+  }
+
+  if (field_loc)
+    TSHandleMLocRelease(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc);
+
+  return 0;
+}
+
+static void
+ts_lua_inject_server_request_headers_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_request_get_headers);
+  lua_setfield(L, -2, "get_headers");
+}
+
+static int
+ts_lua_server_request_get_headers(lua_State * L)
+{
+  const char *name;
+  const char *value;
+  int name_len;
+  int value_len;
+  TSMLoc field_loc;
+  TSMLoc next_field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_REQUEST_HDR(http_ctx);
+
+  lua_newtable(L);
+
+  field_loc = TSMimeHdrFieldGet(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, 0);
+
+  while (field_loc) {
+
+    name = TSMimeHdrFieldNameGet(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc, &name_len);
+    if (name && name_len) {
+
+      value =
+        TSMimeHdrFieldValueStringGet(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc, -1,
+                                     &value_len);
+      lua_pushlstring(L, name, name_len);
+      lua_pushlstring(L, value, value_len);
+      lua_rawset(L, -3);
+    }
+
+    next_field_loc = TSMimeHdrFieldNext(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc);
+    TSHandleMLocRelease(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, field_loc);
+    field_loc = next_field_loc;
+  }
+
+  return 1;
+}
+
+static void
+ts_lua_inject_server_request_get_header_size_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_request_get_header_size);
+  lua_setfield(L, -2, "get_header_size");
+}
+
+static int
+ts_lua_server_request_get_header_size(lua_State * L)
+{
+  int header_size;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  header_size = TSHttpTxnServerReqHdrBytesGet(http_ctx->txnp);
+  lua_pushnumber(L, header_size);
+
+  return 1;
+}
+
+static void
+ts_lua_inject_server_request_get_body_size_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_request_get_body_size);
+  lua_setfield(L, -2, "get_body_size");
+}
+
+static int
+ts_lua_server_request_get_body_size(lua_State * L)
+{
+  int64_t body_size;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  body_size = TSHttpTxnServerReqBodyBytesGet(http_ctx->txnp);
+  lua_pushnumber(L, body_size);
+
+  return 1;
+}
+
+static void
+ts_lua_inject_server_request_uri_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_request_set_uri);
+  lua_setfield(L, -2, "set_uri");
+
+  lua_pushcfunction(L, ts_lua_server_request_get_uri);
+  lua_setfield(L, -2, "get_uri");
+}
+
+static int
+ts_lua_server_request_get_uri(lua_State * L)
+{
+  char uri[TS_LUA_MAX_URL_LENGTH];
+  const char *path;
+  int path_len;
+  int uri_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_REQUEST_URL(http_ctx);
+
+  path = TSUrlPathGet(http_ctx->server_request_bufp, http_ctx->server_request_url, &path_len);
+
+  uri_len = snprintf(uri, TS_LUA_MAX_URL_LENGTH, "/%.*s", path_len, path);
+
+  lua_pushlstring(L, uri, uri_len);
+
+  return 1;
+}
+
+static int
+ts_lua_server_request_set_uri(lua_State * L)
+{
+  const char *path;
+  size_t path_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_REQUEST_URL(http_ctx);
+
+  path = luaL_checklstring(L, 1, &path_len);
+
+  if (*path == '/') {
+    path++;
+    path_len--;
+  }
+
+  TSUrlPathSet(http_ctx->server_request_bufp, http_ctx->server_request_url, path, path_len);
+
+  return 0;
+}
+
+static void
+ts_lua_inject_server_request_uri_args_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_request_set_uri_args);
+  lua_setfield(L, -2, "set_uri_args");
+
+  lua_pushcfunction(L, ts_lua_server_request_get_uri_args);
+  lua_setfield(L, -2, "get_uri_args");
+}
+
+static int
+ts_lua_server_request_set_uri_args(lua_State * L)
+{
+  const char *param;
+  size_t param_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_REQUEST_URL(http_ctx);
+
+  param = luaL_checklstring(L, 1, &param_len);
+  TSUrlHttpQuerySet(http_ctx->server_request_bufp, http_ctx->server_request_url, param, param_len);
+
+  return 0;
+}
+
+static int
+ts_lua_server_request_get_uri_args(lua_State * L)
+{
+  const char *param;
+  int param_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_REQUEST_URL(http_ctx);
+
+  param = TSUrlHttpQueryGet(http_ctx->server_request_bufp, http_ctx->server_request_url, &param_len);
+
+  if (param && param_len > 0) {
+    lua_pushlstring(L, param, param_len);
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_server_request.h b/plugins/experimental/ts_lua/ts_lua_server_request.h
new file mode 100644
index 00000000..40d5d095
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_server_request.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_SERVER_REQUEST_H
+#define _TS_LUA_SERVER_REQUEST_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_server_request_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_server_response.c b/plugins/experimental/ts_lua/ts_lua_server_response.c
new file mode 100644
index 00000000..55a2a63a
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_server_response.c
@@ -0,0 +1,319 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+#define TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx)     \
+do {        \
+    if (!http_ctx->server_response_hdrp) {           \
+        if (TSHttpTxnServerRespGet(http_ctx->txnp,   \
+                    &http_ctx->server_response_bufp, \
+                    &http_ctx->server_response_hdrp) != TS_SUCCESS) {    \
+            return 0;   \
+        }   \
+    }   \
+} while(0)
+
+
+static void ts_lua_inject_server_response_header_api(lua_State * L);
+static void ts_lua_inject_server_response_headers_api(lua_State * L);
+static void ts_lua_inject_server_response_misc_api(lua_State * L);
+
+static int ts_lua_server_response_header_get(lua_State * L);
+static int ts_lua_server_response_header_set(lua_State * L);
+
+static int ts_lua_server_response_get_headers(lua_State * L);
+
+static int ts_lua_server_response_get_status(lua_State * L);
+static int ts_lua_server_response_set_status(lua_State * L);
+
+static int ts_lua_server_response_get_version(lua_State * L);
+static int ts_lua_server_response_set_version(lua_State * L);
+
+
+void
+ts_lua_inject_server_response_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_server_response_header_api(L);
+  ts_lua_inject_server_response_headers_api(L);
+  ts_lua_inject_server_response_misc_api(L);
+
+  lua_setfield(L, -2, "server_response");
+}
+
+
+static void
+ts_lua_inject_server_response_header_api(lua_State * L)
+{
+  lua_newtable(L);              /* .header */
+
+  lua_createtable(L, 0, 2);     /* metatable for .header */
+
+  lua_pushcfunction(L, ts_lua_server_response_header_get);
+  lua_setfield(L, -2, "__index");
+  lua_pushcfunction(L, ts_lua_server_response_header_set);
+  lua_setfield(L, -2, "__newindex");
+
+  lua_setmetatable(L, -2);
+
+  lua_setfield(L, -2, "header");
+}
+
+static void
+ts_lua_inject_server_response_headers_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_response_get_headers);
+  lua_setfield(L, -2, "get_headers");
+}
+
+static int
+ts_lua_server_response_get_headers(lua_State * L)
+{
+  const char *name;
+  const char *value;
+  int name_len;
+  int value_len;
+  TSMLoc field_loc;
+  TSMLoc next_field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  lua_newtable(L);
+
+  field_loc = TSMimeHdrFieldGet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, 0);
+
+  while (field_loc) {
+
+    name = TSMimeHdrFieldNameGet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc, &name_len);
+    if (name && name_len) {
+
+      value =
+        TSMimeHdrFieldValueStringGet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc, -1,
+                                     &value_len);
+      lua_pushlstring(L, name, name_len);
+      lua_pushlstring(L, value, value_len);
+      lua_rawset(L, -3);
+    }
+
+    next_field_loc = TSMimeHdrFieldNext(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc);
+    TSHandleMLocRelease(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc);
+    field_loc = next_field_loc;
+  }
+
+  return 1;
+}
+
+static void
+ts_lua_inject_server_response_misc_api(lua_State * L)
+{
+  lua_pushcfunction(L, ts_lua_server_response_get_status);
+  lua_setfield(L, -2, "get_status");
+  lua_pushcfunction(L, ts_lua_server_response_set_status);
+  lua_setfield(L, -2, "set_status");
+
+  lua_pushcfunction(L, ts_lua_server_response_get_version);
+  lua_setfield(L, -2, "get_version");
+  lua_pushcfunction(L, ts_lua_server_response_set_version);
+  lua_setfield(L, -2, "set_version");
+}
+
+static int
+ts_lua_server_response_header_get(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  int val_len;
+  size_t key_len;
+
+  TSMLoc field_loc;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  /*  we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  if (key && key_len) {
+
+    field_loc = TSMimeHdrFieldFind(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, key, key_len);
+    if (field_loc) {
+      val =
+        TSMimeHdrFieldValueStringGet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc, -1,
+                                     &val_len);
+      lua_pushlstring(L, val, val_len);
+      TSHandleMLocRelease(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc);
+
+    } else {
+      lua_pushnil(L);
+    }
+
+  } else {
+    lua_pushnil(L);
+  }
+
+  return 1;
+}
+
+static int
+ts_lua_server_response_header_set(lua_State * L)
+{
+  const char *key;
+  const char *val;
+  size_t val_len;
+  size_t key_len;
+  int remove;
+
+  TSMLoc field_loc;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  remove = 0;
+  val = NULL;
+
+  /*   we skip the first argument that is the table */
+  key = luaL_checklstring(L, 2, &key_len);
+  if (lua_isnil(L, 3)) {
+    remove = 1;
+  } else {
+    val = luaL_checklstring(L, 3, &val_len);
+  }
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  field_loc = TSMimeHdrFieldFind(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, key, key_len);
+
+  if (remove) {
+    if (field_loc) {
+      TSMimeHdrFieldDestroy(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc);
+    }
+
+  } else if (field_loc) {
+    TSMimeHdrFieldValueStringSet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc, 0, val,
+                                 val_len);
+
+  } else if (TSMimeHdrFieldCreateNamed(http_ctx->server_response_bufp, http_ctx->server_response_hdrp,
+                                       key, key_len, &field_loc) != TS_SUCCESS) {
+    TSError("[%s] TSMimeHdrFieldCreateNamed error", __FUNCTION__);
+    return 0;
+
+  } else {
+    TSMimeHdrFieldValueStringSet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc, -1, val,
+                                 val_len);
+    TSMimeHdrFieldAppend(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc);
+  }
+
+  if (field_loc)
+    TSHandleMLocRelease(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, field_loc);
+
+  return 0;
+}
+
+static int
+ts_lua_server_response_get_status(lua_State * L)
+{
+  int status;
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  status = TSHttpHdrStatusGet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp);
+
+  lua_pushinteger(L, status);
+
+  return 1;
+}
+
+static int
+ts_lua_server_response_set_status(lua_State * L)
+{
+  int status;
+  const char *reason;
+  int reason_len;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  status = luaL_checkint(L, 1);
+
+  reason = TSHttpHdrReasonLookup(status);
+  reason_len = strlen(reason);
+
+  TSHttpHdrStatusSet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, status);
+  TSHttpHdrReasonSet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, reason, reason_len);
+
+  return 0;
+}
+
+static int
+ts_lua_server_response_get_version(lua_State * L)
+{
+  int version;
+  char buf[32];
+  int n;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  version = TSHttpHdrVersionGet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp);
+
+  n = snprintf(buf, sizeof(buf) - 1, "%d.%d", TS_HTTP_MAJOR(version), TS_HTTP_MINOR(version));
+  lua_pushlstring(L, buf, n);
+
+  return 1;
+}
+
+static int
+ts_lua_server_response_set_version(lua_State * L)
+{
+  const char *version;
+  size_t len;
+  int major, minor;
+
+  ts_lua_http_ctx *http_ctx;
+
+  http_ctx = ts_lua_get_http_ctx(L);
+
+  TS_LUA_CHECK_SERVER_RESPONSE_HDR(http_ctx);
+
+  version = luaL_checklstring(L, 1, &len);
+
+  sscanf(version, "%2u.%2u", &major, &minor);
+
+  TSHttpHdrVersionSet(http_ctx->server_response_bufp, http_ctx->server_response_hdrp, TS_HTTP_VERSION(major, minor));
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_server_response.h b/plugins/experimental/ts_lua/ts_lua_server_response.h
new file mode 100644
index 00000000..9e890692
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_server_response.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_SERVER_RESPONSE_H
+#define _TS_LUA_SERVER_RESPONSE_H
+
+#include "ts_lua_common.h"
+
+void ts_lua_inject_server_response_api(lua_State * L);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_string.c b/plugins/experimental/ts_lua/ts_lua_string.c
new file mode 100644
index 00000000..40511c56
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_string.c
@@ -0,0 +1,32 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include "ts_lua_string.h"
+
+u_char *
+ts_lua_hex_dump(u_char * dst, u_char * src, size_t len)
+{
+  static u_char hex[] = "0123456789abcdef";
+
+  while (len--) {
+    *dst++ = hex[*src >> 4];
+    *dst++ = hex[*src++ & 0xf];
+  }
+
+  return dst;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_string.h b/plugins/experimental/ts_lua/ts_lua_string.h
new file mode 100644
index 00000000..2d674684
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_string.h
@@ -0,0 +1,30 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_STRING_H
+#define _TS_LUA_STRING_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <inttypes.h>
+
+u_char *ts_lua_hex_dump(u_char * dst, u_char * src, size_t len);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_transform.c b/plugins/experimental/ts_lua/ts_lua_transform.c
new file mode 100644
index 00000000..b480c860
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_transform.c
@@ -0,0 +1,172 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+
+
+static int ts_lua_transform_handler(TSCont contp, ts_lua_transform_ctx * transform_ctx);
+
+
+int
+ts_lua_transform_entry(TSCont contp, TSEvent event, void *edata ATS_UNUSED)
+{
+  TSVIO input_vio;
+
+  ts_lua_transform_ctx *transform_ctx = (ts_lua_transform_ctx *) TSContDataGet(contp);
+
+  if (TSVConnClosedGet(contp)) {
+    TSContDestroy(contp);
+    ts_lua_destroy_transform_ctx(transform_ctx);
+    return 0;
+  }
+
+  switch (event) {
+
+  case TS_EVENT_ERROR:
+    input_vio = TSVConnWriteVIOGet(contp);
+    TSContCall(TSVIOContGet(input_vio), TS_EVENT_ERROR, input_vio);
+    break;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+    break;
+
+  case TS_EVENT_VCONN_WRITE_READY:
+  default:
+    ts_lua_transform_handler(contp, transform_ctx);
+    break;
+  }
+
+  return 0;
+}
+
+static int
+ts_lua_transform_handler(TSCont contp, ts_lua_transform_ctx * transform_ctx)
+{
+  TSVConn output_conn;
+  TSVIO input_vio;
+  TSIOBufferReader input_reader;
+  TSIOBufferBlock blk;
+  int64_t towrite, blk_len, upstream_done, avail, left;
+  const char *start;
+  const char *res;
+  size_t res_len;
+  int ret, eos;
+
+  lua_State *L;
+  TSMutex mtxp;
+
+  L = transform_ctx->hctx->lua;
+  mtxp = transform_ctx->hctx->mctx->mutexp;
+
+  output_conn = TSTransformOutputVConnGet(contp);
+  input_vio = TSVConnWriteVIOGet(contp);
+  input_reader = TSVIOReaderGet(input_vio);
+
+  if (!transform_ctx->output_buffer) {
+    transform_ctx->output_buffer = TSIOBufferCreate();
+    transform_ctx->output_reader = TSIOBufferReaderAlloc(transform_ctx->output_buffer);
+    transform_ctx->output_vio = TSVConnWrite(output_conn, contp, transform_ctx->output_reader, INT64_MAX);
+  }
+
+  if (!TSVIOBufferGet(input_vio)) {
+    TSVIONBytesSet(transform_ctx->output_vio, transform_ctx->total);
+    TSVIOReenable(transform_ctx->output_vio);
+    return 1;
+  }
+
+  if (transform_ctx->eos) {
+    return 1;
+  }
+
+  left = towrite = TSVIONTodoGet(input_vio);
+  upstream_done = TSVIONDoneGet(input_vio);
+  avail = TSIOBufferReaderAvail(input_reader);
+  eos = 0;
+
+  if (left <= avail)
+    eos = 1;
+
+  if (towrite > avail)
+    towrite = avail;
+
+  TSMutexLock(mtxp);
+
+  blk = TSIOBufferReaderStart(input_reader);
+
+  do {
+    start = TSIOBufferBlockReadStart(blk, input_reader, &blk_len);
+
+    lua_pushlightuserdata(L, transform_ctx);
+    lua_rawget(L, LUA_GLOBALSINDEX);    /* push function */
+
+    if (towrite > blk_len) {
+      lua_pushlstring(L, start, (size_t) blk_len);
+      towrite -= blk_len;
+    } else {
+      lua_pushlstring(L, start, (size_t) towrite);
+      towrite = 0;
+    }
+
+    if (!towrite && eos) {
+      lua_pushinteger(L, 1);    /* second param, not finish */
+    } else {
+      lua_pushinteger(L, 0);    /* second param, not finish */
+    }
+
+    if (lua_pcall(L, 2, 2, 0)) {
+      TSError("lua_pcall failed: %s", lua_tostring(L, -1));
+    }
+
+    ret = lua_tointeger(L, -1); /* 0 is not finished, 1 is finished */
+    res = lua_tolstring(L, -2, &res_len);
+
+    if (res && res_len) {
+      TSIOBufferWrite(transform_ctx->output_buffer, res, res_len);
+      transform_ctx->total += res_len;
+    }
+
+    lua_pop(L, 2);
+
+    if (ret || (eos && !towrite)) {     // EOS
+      eos = 1;
+      break;
+    }
+
+    blk = TSIOBufferBlockNext(blk);
+
+  } while (blk && towrite > 0);
+
+  TSMutexUnlock(mtxp);
+
+  TSIOBufferReaderConsume(input_reader, avail);
+  TSVIONDoneSet(input_vio, upstream_done + avail);
+
+  if (eos) {
+    transform_ctx->eos = 1;
+    TSVIONBytesSet(transform_ctx->output_vio, transform_ctx->total);
+    TSVIOReenable(transform_ctx->output_vio);
+    TSContCall(TSVIOContGet(input_vio), TS_EVENT_VCONN_WRITE_COMPLETE, input_vio);
+  } else {
+    TSVIOReenable(transform_ctx->output_vio);
+    TSContCall(TSVIOContGet(input_vio), TS_EVENT_VCONN_WRITE_READY, input_vio);
+  }
+
+  return 1;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_transform.h b/plugins/experimental/ts_lua/ts_lua_transform.h
new file mode 100644
index 00000000..b05294ee
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_transform.h
@@ -0,0 +1,27 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_TRANSFORM_H
+#define _TS_LUA_TRANSFORM_H
+
+#include "ts_lua_common.h"
+
+int ts_lua_transform_entry(TSCont contp, TSEvent event, void *edata);
+
+#endif
diff --git a/plugins/experimental/ts_lua/ts_lua_util.c b/plugins/experimental/ts_lua/ts_lua_util.c
new file mode 100644
index 00000000..53045315
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_util.c
@@ -0,0 +1,715 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#include "ts_lua_util.h"
+#include "ts_lua_remap.h"
+#include "ts_lua_client_request.h"
+#include "ts_lua_server_request.h"
+#include "ts_lua_server_response.h"
+#include "ts_lua_client_response.h"
+#include "ts_lua_cached_response.h"
+#include "ts_lua_context.h"
+#include "ts_lua_hook.h"
+#include "ts_lua_http.h"
+#include "ts_lua_misc.h"
+#include "ts_lua_log.h"
+#include "ts_lua_crypto.h"
+#include "ts_lua_mgmt.h"
+#include "ts_lua_package.h"
+
+static lua_State *ts_lua_new_state();
+static void ts_lua_init_registry(lua_State * L);
+static void ts_lua_init_globals(lua_State * L);
+static void ts_lua_inject_ts_api(lua_State * L);
+
+
+int
+ts_lua_create_vm(ts_lua_main_ctx * arr, int n)
+{
+  int i;
+  lua_State *L;
+
+  for (i = 0; i < n; i++) {
+
+    L = ts_lua_new_state();
+
+    if (L == NULL)
+      return -1;
+
+    lua_pushvalue(L, LUA_GLOBALSINDEX);
+
+    arr[i].gref = luaL_ref(L, LUA_REGISTRYINDEX);       /* L[REG][gref] = L[GLOBAL] */
+    arr[i].lua = L;
+    arr[i].mutexp = TSMutexCreate();
+  }
+
+  return 0;
+}
+
+void
+ts_lua_destroy_vm(ts_lua_main_ctx * arr, int n)
+{
+  int i;
+  lua_State *L;
+
+  for (i = 0; i < n; i++) {
+
+    L = arr[i].lua;
+    if (L)
+      lua_close(L);
+  }
+
+  return;
+}
+
+lua_State *
+ts_lua_new_state()
+{
+  lua_State *L;
+
+  L = luaL_newstate();
+
+  if (L == NULL) {
+    return NULL;
+  }
+
+  luaL_openlibs(L);
+
+  ts_lua_init_registry(L);
+
+  ts_lua_init_globals(L);
+
+  return L;
+}
+
+int
+ts_lua_add_module(ts_lua_instance_conf * conf, ts_lua_main_ctx * arr, int n, int argc, char *argv[])
+{
+  int i, ret;
+  int t;
+  lua_State *L;
+
+  for (i = 0; i < n; i++) {
+    conf->_first = (i == 0) ? 1 : 0;
+    conf->_last = (i == n - 1) ? 1 : 0;
+
+    TSMutexLock(arr[i].mutexp);
+
+    L = arr[i].lua;
+
+    lua_newtable(L);            /* new TB1 */
+    lua_pushvalue(L, -1);       /* new TB2 */
+    lua_setfield(L, -2, "_G");  /* TB1[_G] = TB2 empty table, we can change _G to xx */
+    lua_newtable(L);            /* new TB3 */
+    lua_rawgeti(L, LUA_REGISTRYINDEX, arr[i].gref);     /* push L[GLOBAL] */
+    lua_setfield(L, -2, "__index");     /* TB3[__index] = L[GLOBAL] which has ts.xxx api */
+    lua_setmetatable(L, -2);    /* TB1[META]  = TB3 */
+    lua_replace(L, LUA_GLOBALSINDEX);   /* L[GLOBAL] = TB1 */
+
+    ts_lua_set_instance_conf(L, conf);
+
+    if (conf->content) {
+      if (luaL_loadstring(L, conf->content)) {
+        TSError("[%s] luaL_loadstring %s failed: %s", __FUNCTION__, conf->script, lua_tostring(L, -1));
+        lua_pop(L, 1);
+        TSMutexUnlock(arr[i].mutexp);
+        return -1;
+      }
+
+    } else if (conf->script) { 
+      if (luaL_loadfile(L, conf->script)) {
+        TSError("[%s] luaL_loadfile %s failed: %s", __FUNCTION__, conf->script, lua_tostring(L, -1));
+        lua_pop(L, 1);
+        TSMutexUnlock(arr[i].mutexp);
+        return -1;
+      }
+    }
+
+    if (lua_pcall(L, 0, 0, 0)) {
+      TSError("[%s] lua_pcall %s failed: %s", __FUNCTION__, conf->script, lua_tostring(L, -1));
+      lua_pop(L, 1);
+      TSMutexUnlock(arr[i].mutexp);
+      return -1;
+    }
+
+    /* call "__init__", to parse parameters */
+    lua_getglobal(L, "__init__");
+
+    if (lua_type(L, -1) == LUA_TFUNCTION) {
+
+      lua_newtable(L);
+
+      for (t = 0; t < argc; t++) {
+        lua_pushnumber(L, t);
+        lua_pushstring(L, argv[t]);
+        lua_rawset(L, -3);
+      }
+
+      if (lua_pcall(L, 1, 1, 0)) {
+        TSError("[%s] lua_pcall %s failed: %s", __FUNCTION__, conf->script, lua_tostring(L, -1));
+        lua_pop(L, 1);
+        TSMutexUnlock(arr[i].mutexp);
+        return -1;
+      }
+
+      ret = lua_tonumber(L, -1);
+      lua_pop(L, 1);
+
+      if (ret) {
+        TSMutexUnlock(arr[i].mutexp);
+        return -1;              /* script parse error */
+      }
+
+    } else {
+      lua_pop(L, 1);            /* pop nil */
+    }
+
+    lua_pushlightuserdata(L, conf);
+    lua_pushvalue(L, LUA_GLOBALSINDEX);
+    lua_rawset(L, LUA_REGISTRYINDEX);   /* L[REG][conf] = L[GLOBAL] */
+
+    lua_newtable(L);
+    lua_replace(L, LUA_GLOBALSINDEX);   /* L[GLOBAL] = EMPTY */
+
+    TSMutexUnlock(arr[i].mutexp);
+  }
+
+  return 0;
+}
+
+int
+ts_lua_del_module(ts_lua_instance_conf * conf, ts_lua_main_ctx * arr, int n)
+{
+  int i;
+  lua_State *L;
+
+  for (i = 0; i < n; i++) {
+
+    TSMutexLock(arr[i].mutexp);
+
+    L = arr[i].lua;
+
+    /* call "__clean__", to clean resources */
+    lua_pushlightuserdata(L, conf);
+    lua_rawget(L, LUA_REGISTRYINDEX);
+    lua_replace(L, LUA_GLOBALSINDEX);   /* L[GLOBAL] = L[REG][conf] */
+
+    lua_getglobal(L, "__clean__");      /* get __clean__ function */
+
+    if (lua_type(L, -1) == LUA_TFUNCTION) {
+
+      if (lua_pcall(L, 0, 0, 0)) {
+        TSError("[%s] lua_pcall %s failed: %s", __FUNCTION__, conf->script, lua_tostring(L, -1));
+      }
+
+    } else {
+      lua_pop(L, 1);            /* pop nil */
+    }
+
+    lua_pushlightuserdata(L, conf);
+    lua_pushnil(L);
+    lua_rawset(L, LUA_REGISTRYINDEX);   /* L[REG][conf] = nil */
+
+    lua_newtable(L);
+    lua_replace(L, LUA_GLOBALSINDEX);   /* L[GLOBAL] = EMPTY  */
+
+    TSMutexUnlock(arr[i].mutexp);
+  }
+
+  return 0;
+}
+
+int
+ts_lua_init_instance(ts_lua_instance_conf * conf ATS_UNUSED)
+{
+  return 0;
+}
+
+int
+ts_lua_del_instance(ts_lua_instance_conf * conf ATS_UNUSED)
+{
+  return 0;
+}
+
+static void
+ts_lua_init_registry(lua_State * L ATS_UNUSED)
+{
+  return;
+}
+
+static void
+ts_lua_init_globals(lua_State * L)
+{
+  ts_lua_inject_ts_api(L);
+}
+
+static void
+ts_lua_inject_ts_api(lua_State * L)
+{
+  lua_newtable(L);
+
+  ts_lua_inject_remap_api(L);
+
+  ts_lua_inject_client_request_api(L);
+  ts_lua_inject_server_request_api(L);
+  ts_lua_inject_server_response_api(L);
+  ts_lua_inject_client_response_api(L);
+  ts_lua_inject_cached_response_api(L);
+  ts_lua_inject_log_api(L);
+
+  ts_lua_inject_context_api(L);
+  ts_lua_inject_hook_api(L);
+
+  ts_lua_inject_http_api(L);
+  ts_lua_inject_misc_api(L);
+  ts_lua_inject_crypto_api(L);
+  ts_lua_inject_mgmt_api(L);
+  ts_lua_inject_package_api(L);
+
+  lua_getglobal(L, "package");
+  lua_getfield(L, -1, "loaded");
+  lua_pushvalue(L, -3);
+  lua_setfield(L, -2, "ts");
+  lua_pop(L, 2);
+
+  lua_setglobal(L, "ts");
+}
+
+void
+ts_lua_set_instance_conf(lua_State * L, ts_lua_instance_conf * conf)
+{
+  lua_pushliteral(L, "__ts_instance_conf");
+  lua_pushlightuserdata(L, conf);
+  lua_rawset(L, LUA_GLOBALSINDEX);
+}
+
+ts_lua_instance_conf *
+ts_lua_get_instance_conf(lua_State * L)
+{
+  ts_lua_instance_conf *conf;
+
+  lua_pushliteral(L, "__ts_instance_conf");
+  lua_rawget(L, LUA_GLOBALSINDEX);
+  conf = lua_touserdata(L, -1);
+
+  lua_pop(L, 1);                // pop the conf out
+
+  return conf;
+}
+
+void
+ts_lua_set_http_ctx(lua_State * L, ts_lua_http_ctx * ctx)
+{
+  lua_pushliteral(L, "__ts_http_ctx");
+  lua_pushlightuserdata(L, ctx);
+  lua_rawset(L, LUA_GLOBALSINDEX);
+}
+
+ts_lua_http_ctx *
+ts_lua_get_http_ctx(lua_State * L)
+{
+  ts_lua_http_ctx *ctx;
+
+  lua_pushliteral(L, "__ts_http_ctx");
+  lua_rawget(L, LUA_GLOBALSINDEX);
+  ctx = lua_touserdata(L, -1);
+
+  lua_pop(L, 1);                // pop the ctx out
+
+  return ctx;
+}
+
+ts_lua_http_ctx *
+ts_lua_create_http_ctx(ts_lua_main_ctx * main_ctx, ts_lua_instance_conf * conf)
+{
+  int i, size;
+  ts_lua_http_ctx *http_ctx;
+  lua_State *L;
+  lua_State *l;
+
+  L = main_ctx->lua;
+
+  size = TS_LUA_MEM_ALIGN(sizeof(ts_lua_http_ctx));
+  http_ctx = TSmalloc(size);
+
+  for (i = 0; i < TS_LUA_ALIGN_COUNT(size); i++) {
+    ((void **) http_ctx)[i] = 0;
+  }
+
+  http_ctx->lua = lua_newthread(L);
+  l = http_ctx->lua;
+
+  lua_pushlightuserdata(L, conf);
+  lua_rawget(L, LUA_REGISTRYINDEX);
+
+  /* new globals table for coroutine */
+  lua_newtable(l);
+  lua_pushvalue(l, -1);
+  lua_setfield(l, -2, "_G");
+  lua_newtable(l);
+  lua_xmove(L, l, 1);
+  lua_setfield(l, -2, "__index");
+  lua_setmetatable(l, -2);
+
+  lua_replace(l, LUA_GLOBALSINDEX);
+
+  http_ctx->ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+  http_ctx->mctx = main_ctx;
+  http_ctx->instance_conf = conf;
+
+  ts_lua_set_http_ctx(http_ctx->lua, http_ctx);
+  ts_lua_create_context_table(http_ctx->lua);
+
+  return http_ctx;
+}
+
+
+void
+ts_lua_destroy_http_ctx(ts_lua_http_ctx * http_ctx)
+{
+  ts_lua_main_ctx *main_ctx;
+
+  main_ctx = http_ctx->mctx;
+
+  if (!http_ctx->remap) {
+    if (http_ctx->client_request_bufp) {
+      TSHandleMLocRelease(http_ctx->client_request_bufp, TS_NULL_MLOC, http_ctx->client_request_hdrp);
+    }
+  }
+
+  if (http_ctx->server_request_url) {
+    TSHandleMLocRelease(http_ctx->server_request_bufp, http_ctx->server_request_hdrp, http_ctx->server_request_url);
+  }
+
+  if (http_ctx->server_request_bufp) {
+    TSHandleMLocRelease(http_ctx->server_request_bufp, TS_NULL_MLOC, http_ctx->server_request_hdrp);
+  }
+
+  if (http_ctx->server_response_bufp) {
+    TSHandleMLocRelease(http_ctx->server_response_bufp, TS_NULL_MLOC, http_ctx->server_response_hdrp);
+  }
+
+  if (http_ctx->client_response_bufp) {
+    TSHandleMLocRelease(http_ctx->client_response_bufp, TS_NULL_MLOC, http_ctx->client_response_hdrp);
+  }
+
+  if (http_ctx->cached_response_bufp) {
+    TSMimeHdrDestroy(http_ctx->cached_response_bufp, http_ctx->cached_response_hdrp);
+    TSHandleMLocRelease(http_ctx->cached_response_bufp, TS_NULL_MLOC, http_ctx->cached_response_hdrp);
+    TSMBufferDestroy(http_ctx->cached_response_bufp);
+  }
+
+  luaL_unref(main_ctx->lua, LUA_REGISTRYINDEX, http_ctx->ref);
+  TSfree(http_ctx);
+}
+
+void
+ts_lua_set_http_intercept_ctx(lua_State * L, ts_lua_http_intercept_ctx * ictx)
+{
+  lua_pushliteral(L, "__ts_http_intercept_ctx");
+  lua_pushlightuserdata(L, ictx);
+  lua_rawset(L, LUA_GLOBALSINDEX);
+}
+
+ts_lua_http_intercept_ctx *
+ts_lua_get_http_intercept_ctx(lua_State * L)
+{
+  ts_lua_http_intercept_ctx *ictx;
+
+  lua_pushliteral(L, "__ts_http_intercept_ctx");
+  lua_rawget(L, LUA_GLOBALSINDEX);
+  ictx = lua_touserdata(L, -1);
+
+  lua_pop(L, 1);                // pop the ictx out
+
+  return ictx;
+}
+
+ts_lua_http_intercept_ctx *
+ts_lua_create_http_intercept_ctx(ts_lua_http_ctx * http_ctx)
+{
+  int i, size;
+  lua_State *L;
+  ts_lua_http_intercept_ctx *ictx;
+
+  L = http_ctx->lua;
+
+  size = TS_LUA_MEM_ALIGN(sizeof(ts_lua_http_intercept_ctx));
+  ictx = TSmalloc(size);
+
+  for (i = 0; i < TS_LUA_ALIGN_COUNT(size); i++) {
+    ((void **) ictx)[i] = 0;
+  }
+
+  ictx->lua = lua_newthread(L);
+
+  ictx->ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+  ictx->mctx = http_ctx->mctx;
+  ictx->hctx = http_ctx;
+
+  ts_lua_set_http_intercept_ctx(ictx->lua, ictx);
+
+  return ictx;
+}
+
+void
+ts_lua_destroy_http_intercept_ctx(ts_lua_http_intercept_ctx * ictx)
+{
+  ts_lua_main_ctx *main_ctx;
+  struct ict_item *node, *snode;
+
+  main_ctx = ictx->mctx;
+
+  if (ictx->net_vc)
+    TSVConnClose(ictx->net_vc);
+
+  TS_LUA_RELEASE_IO_HANDLE((&ictx->input));
+  TS_LUA_RELEASE_IO_HANDLE((&ictx->output));
+
+  node = ictx->ict_chain;
+
+  while (node) {
+
+    if (node->cleanup)
+      node->cleanup(node);
+
+    snode = node;
+    node = node->next;
+
+    TSfree(snode);
+  }
+
+  luaL_unref(main_ctx->lua, LUA_REGISTRYINDEX, ictx->ref);
+  TSfree(ictx);
+  return;
+}
+
+void
+ts_lua_destroy_transform_ctx(ts_lua_transform_ctx * transform_ctx)
+{
+  if (!transform_ctx)
+    return;
+
+  if (transform_ctx->output_reader)
+    TSIOBufferReaderFree(transform_ctx->output_reader);
+
+  if (transform_ctx->output_buffer)
+    TSIOBufferDestroy(transform_ctx->output_buffer);
+
+  TSfree(transform_ctx);
+}
+
+int
+ts_lua_http_cont_handler(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  int ret;
+  lua_State *l;
+  ts_lua_http_ctx *http_ctx;
+  ts_lua_main_ctx *main_ctx;
+
+  http_ctx = (ts_lua_http_ctx *) TSContDataGet(contp);
+  main_ctx = http_ctx->mctx;
+
+  ret = 0;
+  l = http_ctx->lua;
+
+  TSMutexLock(main_ctx->mutexp);
+
+  switch (event) {
+
+  case TS_EVENT_HTTP_POST_REMAP:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_POST_REMAP);
+
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_CACHE_LOOKUP_COMPLETE);
+
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_SEND_REQUEST);
+
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_READ_RESPONSE);
+
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_SEND_RESPONSE);
+
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_READ_REQUEST);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_TXN_START:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_TXN_START);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_PRE_REMAP:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_PRE_REMAP);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+    
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_OS_DNS:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_OS_DNS);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_SELECT_ALT:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_SELECT_ALT);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_READ_CACHE_HDR:
+
+    lua_getglobal(l, TS_LUA_FUNCTION_READ_CACHE);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    break;
+
+  case TS_EVENT_HTTP_TXN_CLOSE:
+    lua_getglobal(l, TS_LUA_FUNCTION_TXN_CLOSE);
+    if (lua_type(l, -1) == LUA_TFUNCTION) {
+      if (lua_pcall(l, 0, 1, 0)) {
+        TSError("lua_pcall failed: %s", lua_tostring(l, -1));
+      }
+
+      ret = lua_tointeger(l, -1);
+    }
+
+    ts_lua_destroy_http_ctx(http_ctx);
+    TSContDestroy(contp);
+    break;
+
+  default:
+    break;
+  }
+
+  TSMutexUnlock(main_ctx->mutexp);
+
+  if (ret) {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+
+  } else {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  }
+
+  return 0;
+}
diff --git a/plugins/experimental/ts_lua/ts_lua_util.h b/plugins/experimental/ts_lua/ts_lua_util.h
new file mode 100644
index 00000000..efd1b3ac
--- /dev/null
+++ b/plugins/experimental/ts_lua/ts_lua_util.h
@@ -0,0 +1,52 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+ 
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+#ifndef _TS_LUA_UTIL_H
+#define _TS_LUA_UTIL_H
+
+#include "ts_lua_common.h"
+
+int ts_lua_create_vm(ts_lua_main_ctx * arr, int n);
+void ts_lua_destroy_vm(ts_lua_main_ctx * arr, int n);
+
+int ts_lua_add_module(ts_lua_instance_conf * conf, ts_lua_main_ctx * arr, int n, int argc, char *argv[]);
+
+int ts_lua_del_module(ts_lua_instance_conf * conf, ts_lua_main_ctx * arr, int n);
+
+int ts_lua_init_instance(ts_lua_instance_conf * conf);
+int ts_lua_del_instance(ts_lua_instance_conf * conf);
+
+void ts_lua_set_instance_conf(lua_State * L, ts_lua_instance_conf * conf);
+ts_lua_instance_conf *ts_lua_get_instance_conf(lua_State * L);
+
+void ts_lua_set_http_ctx(lua_State * L, ts_lua_http_ctx * ctx);
+ts_lua_http_ctx *ts_lua_get_http_ctx(lua_State * L);
+
+ts_lua_http_ctx *ts_lua_create_http_ctx(ts_lua_main_ctx * mctx, ts_lua_instance_conf * conf);
+void ts_lua_destroy_http_ctx(ts_lua_http_ctx * http_ctx);
+
+void ts_lua_destroy_transform_ctx(ts_lua_transform_ctx * transform_ctx);
+
+ts_lua_http_intercept_ctx *ts_lua_create_http_intercept_ctx(ts_lua_http_ctx * http_ctx);
+ts_lua_http_intercept_ctx *ts_lua_get_http_intercept_ctx(lua_State * L);
+void ts_lua_destroy_http_intercept_ctx(ts_lua_http_intercept_ctx * ictx);
+
+int ts_lua_http_cont_handler(TSCont contp, TSEvent event, void *edata);
+
+#endif
diff --git a/plugins/experimental/url_sig/Makefile.am b/plugins/experimental/url_sig/Makefile.am
new file mode 100644
index 00000000..a9011ffb
--- /dev/null
+++ b/plugins/experimental/url_sig/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = url_sig.la
+url_sig_la_SOURCES = url_sig.c
+url_sig_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/experimental/url_sig/Makefile.in b/plugins/experimental/url_sig/Makefile.in
new file mode 100644
index 00000000..9e5014bb
--- /dev/null
+++ b/plugins/experimental/url_sig/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp README
+subdir = plugins/experimental/url_sig
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
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+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+url_sig.la: $(url_sig_la_OBJECTS) $(url_sig_la_DEPENDENCIES) $(EXTRA_url_sig_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(url_sig_la_LINK) -rpath $(pkglibdir) $(url_sig_la_OBJECTS) $(url_sig_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/url_sig.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/url_sig/Makefile.tsxs b/plugins/experimental/url_sig/Makefile.tsxs
new file mode 100644
index 00000000..e3ee96ec
--- /dev/null
+++ b/plugins/experimental/url_sig/Makefile.tsxs
@@ -0,0 +1,26 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+TSXS?=tsxs
+
+all:	url_sig.c
+	$(TSXS) -v -o url_sig.so $?
+
+install:
+	$(TSXS) -i -o url_sig.so
+
+clean:
+	rm -f *.lo *.so
diff --git a/plugins/experimental/url_sig/README b/plugins/experimental/url_sig/README
new file mode 100644
index 00000000..d2a4ce03
--- /dev/null
+++ b/plugins/experimental/url_sig/README
@@ -0,0 +1,183 @@
+Signed URL plugin
+
+This ATS plugin checks a signature query string on the URL, and rejects (HTTP
+403), or redirects (HTTP 302) when this check fails. The signature is based on
+a secret (key) that a signing portal and the Traffic Server cache share. The
+algorithm for the signature can be MD5 or SHA1. When the check passes, the
+query string is stripped, and the request is handled as if there was no query
+string in the first place.
+
+This plugin comes with 2 example perl scripts. The sign.pl script shows how to
+sign a URL using the different options, this script is just an example, in any
+real usage scenario, the content owner will incorporate this functionality in
+their portal. The genkeys.pl script is a quick hack to generate a config file
+with random keys. Keep your keys to yourself (secret) if you are using this
+plugin, and only share them with the content owner.
+
+Signed URLs do not replace DRM.
+
+Quick install:
+	You can build with ./configure --enable-experimental-plugins or
+	with tsxs:
+
+		Make sure devel packages for traffic-server are installed.
+		Make sure that 'tsxs' is in your path.
+		Make sure versions of this plugin and ATS are compatible.
+
+			make -f Makefile.tsxs
+			make -f Makefile.tsxs install
+
+	add @plugin=url_sig.so @pparam=<config file> to the remap rule you want
+	to be signed
+
+
+Edge cache debugging
+	To enable the TSDebug verbose logging, change records.config to have:
+
+		CONFIG proxy.config.diags.debug.enabled INT 1
+		CONFIG proxy.config.diags.debug.tags STRING url_sig
+
+	and do a traffic_line -x; Debug output will go to traffic.out.
+	Failed transactions (signature check fails that is) will be logged
+	in to error.log.
+
+Signing a URL
+	At the signing portal take the full URL, without any query string, and
+	add on a query string with the following parameters:
+
+	Client IP address
+		The client IP address that this signature is valid for.
+		C=<client IP address>
+	Expiration
+		The Expiration time (seconds since epoch) of this signature.
+		E=<expiration time in secs since unix epoch>
+	Algorithm
+		The Algorithm used to create the signature. Only 1 (HMAC_SHA1)
+		and 2 (HMAC_MD5) are supported at this time
+		A=<algorithm number>
+	Key index
+		Index of the key used. This is the index of the key in the
+		configuration file on the cache. The set of keys is a shared
+		secret between the signing portal and the edge caches. There
+		is one set of keys per reverse proxy domain (fqdn).
+		K=<key index used>
+	Parts
+		Parts to use for the signature, always excluding the scheme
+		(http://).  parts0 = fqdn, parts1..x is the directory parts
+		of the path, if there are more parts to the path than letters
+		in the parts param, the last one is repeated for those.
+		Examples:
+			1: use fqdn and all of URl path
+			0110: use part1 and part 2 of path only
+			01: use everything except the fqdn
+		P=<parts string (0's and 1's>
+	Signature
+		The signature over the parts + the query string up to and
+		including "S=".
+		S=<signature>
+
+
+Example
+	Build, install
+
+		make -f Makefile.tsxs
+		make -f Makefile.tsxs install
+
+	Create the config file, using the genkeys script, or otherwise.
+
+		$ ./genkeys.pl  > /usr/local/trafficserver-master/etc/trafficserver/sign_test.config
+		$ cat /usr/local/trafficserver-master/etc/trafficserver/sign_test.config
+		key0 = YwG7iAxDo6Gaa38KJOceV4nsxiAJZ3DS
+		key1 = nLE3SZKRgaNM9hLz_HnIvrCw_GtTUJT1
+		key2 = YicZbmr6KlxfxPTJ3p9vYhARdPQ9WJYZ
+		key3 = DTV4Tcn046eM9BzJMeYrYpm3kbqOtBs7
+		key4 = C1r6R6MINoQd5YSH25fU66tuRhhz3fs_
+		key5 = l4dxe6YEpYbJtyiOmX5mafhwKImC5kej
+		key6 = ekKNHXu9_oOC5eqIGJVxV0vI9FYvKVya
+		key7 = BrjibTmpTTuhMHqphkQAuCWA0Zg97WQB
+		key8 = rEtWLb1jcYoq9VG8Z8TKgX4GxBuro20J
+		key9 = mrP_6ibDBG4iYpfDB6W8yn3ZyGmdwc6M
+		key10 = tbzoTTGZXPLcvpswCQCYz1DAIZcAOGyX
+		key11 = lWsn6gUeSEW79Fk2kwKVfzhVG87EXLna
+		key12 = Riox0SmGtBWsrieLUHVWtpj18STM4MP1
+		key13 = kBsn332B7yG3HdcV7Tw51pkvHod7_84l
+		key14 = hYI4GUoIlZRf0AyuXkT3QLvBMEoFxkma
+		key15 = EIgJKwIR0LU9CUeTUdVtjMgGmxeCIbdg
+		error_url = 403
+		$
+
+	Add the remap rule like
+
+		map http://test-remap.domain.com http://google.com @plugin=url_sig.so @pparam=sign_test.config
+
+	Restart traffic server or traffic_line -x - verify there are no errors in diags.log
+
+	Try the path unsigned:
+
+		$ curl -vs -H'Host: test-remap.domain.com' http://localhost:8080/
+		* Adding handle: conn: 0x200f8a0
+		* Adding handle: send: 0
+		* Adding handle: recv: 0
+		* Curl_addHandleToPipeline: length: 1
+		* - Conn 0 (0x200f8a0) send_pipe: 1, recv_pipe: 0
+		* About to connect() to localhost port 8080 (#0)
+		*   Trying 127.0.0.1...
+		* Connected to localhost (127.0.0.1) port 8080 (#0)
+		> GET / HTTP/1.1
+		> User-Agent: curl/7.32.0
+		> Accept: */*
+		> Host: test-remap.domain.com
+		>
+		< HTTP/1.1 403 Forbidden
+		< Date: Tue, 15 Apr 2014 22:57:32 GMT
+		< Connection: close
+		* Server ATS/5.0.0 is not blacklisted
+		< Server: ATS/5.0.0
+		< Cache-Control: no-store
+		< Content-Type: text/plain
+		< Content-Language: en
+		< Content-Length: 21
+		<
+		* Closing connection 0
+		Authorization Denied$
+		$
+
+	Sign the URL and try it again. Run the script with appropriate params, and it will output the curl line to run:
+
+		$ ./sign.pl --url http://test-remap.domain.com/ --useparts 1 --algorithm 1 --duration 60 --keyindex 3 --key DTV4Tcn046eM9BzJMeYrYpm3kbqOtBs7
+		curl -s -o /dev/null -v --max-redirs 0 'http://test-remap.domain.com/?E=1397603088&A=1&K=3&P=1&S=28d822f68ac7265db61a8441e0877a98fe1007cc'
+
+	Since test-remap.domain.com doesn't actually exist, we have to change that line slightly:
+
+		$ curl -s -o /dev/null -v --max-redirs 0 -H 'Host: test-remap.domain.com' 'http://localhost:8080/?E=1397603088&A=1&K=3&P=1&S=28d822f68ac7265db61a8441e0877a98fe1007cc'
+		* Adding handle: conn: 0xef0a90
+		* Adding handle: send: 0
+		* Adding handle: recv: 0
+		* Curl_addHandleToPipeline: length: 1
+		* - Conn 0 (0xef0a90) send_pipe: 1, recv_pipe: 0
+		* About to connect() to localhost port 8080 (#0)
+		*   Trying 127.0.0.1...
+		* Connected to localhost (127.0.0.1) port 8080 (#0)
+		> GET /?E=1397603088&A=1&K=3&P=1&S=28d822f68ac7265db61a8441e0877a98fe1007cc HTTP/1.1
+		> User-Agent: curl/7.32.0
+		> Accept: */*
+		> Host: test-remap.domain.com
+		>
+		< HTTP/1.1 200 OK
+		< Location: http://www.google.com/
+		< Content-Type: text/html; charset=UTF-8
+		< Date: Tue, 15 Apr 2014 23:04:36 GMT
+		< Expires: Thu, 15 May 2014 23:04:36 GMT
+		< Cache-Control: public, max-age=2592000
+		* Server ATS/5.0.0 is not blacklisted
+		< Server: ATS/5.0.0
+		< Content-Length: 219
+		< X-XSS-Protection: 1; mode=block
+		< X-Frame-Options: SAMEORIGIN
+		< Alternate-Protocol: 80:quic
+		< Age: 0
+		< Connection: keep-alive
+		<
+		{ [data not shown]
+		* Connection #0 to host localhost left intact
+		$
diff --git a/plugins/experimental/url_sig/genkeys.pl b/plugins/experimental/url_sig/genkeys.pl
new file mode 100755
index 00000000..ae5bc072
--- /dev/null
+++ b/plugins/experimental/url_sig/genkeys.pl
@@ -0,0 +1,29 @@
+#!/usr/bin/perl
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+my $len = 32;
+my @chars = ( 'a' .. 'z', 'A' .. 'Z', '0' .. '9', '_' );
+foreach my $i ( 0 .. 15 ) {
+    my $string = "";
+    foreach ( 1 .. $len ) {
+        $string .= $chars[ rand @chars ];
+    }
+    print "key" . $i . " = " . $string . "\n";
+}
+#print "error_url=302 http://www.domain.com/this/is/the/path/error.html\n";
+print "error_url = 403\n";
diff --git a/plugins/experimental/url_sig/sign.pl b/plugins/experimental/url_sig/sign.pl
new file mode 100755
index 00000000..d3fbdeb1
--- /dev/null
+++ b/plugins/experimental/url_sig/sign.pl
@@ -0,0 +1,101 @@
+#!/usr/bin/perl
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+use Digest::SHA qw(hmac_sha1 hmac_sha1_hex);
+use Digest::HMAC_MD5 qw(hmac_md5 hmac_md5_hex);
+use Getopt::Long;
+use strict;
+use warnings;
+my $key       = undef;
+my $string    = undef;
+my $useparts  = undef;
+my $result    = undef;
+my $duration  = undef;
+my $keyindex  = undef;
+my $verbose   = 0;
+my $url       = undef;
+my $client    = undef;
+my $algorithm = 1;
+
+$result = GetOptions(
+	"url=s"       => \$url,
+	"useparts=s"  => \$useparts,
+	"duration=i"  => \$duration,
+	"key=s"       => \$key,
+	"client=s"    => \$client,
+	"algorithm=i" => \$algorithm,
+	"keyindex=i"  => \$keyindex,
+	"verbose"     => \$verbose
+);
+
+if ( !defined($key) || !defined($url) || !defined($duration) || !defined($keyindex) ) {
+	&help();
+	exit(1);
+}
+
+$url =~ s/^http:\/\///;
+my $i              = 0;
+my $part_active    = 0;
+my $j              = 0;
+my @inactive_parts = ();
+foreach my $part ( split( /\//, $url ) ) {
+	if ( length($useparts) > $i ) {
+		$part_active = substr( $useparts, $i++, 1 );
+	}
+	if ($part_active) {
+		$string .= $part . "/";
+	}
+	else {
+		$inactive_parts[$j] = $part;
+	}
+	$j++;
+}
+chop($string);
+if ( defined($client) ) {
+	$string .= "?C=" . $client . "&E=" . ( time() + $duration ) . "&A=" . $algorithm . "&K=" . $keyindex . "&P=" . $useparts . "&S=";
+}
+else {
+	$string .= "?E=" . ( time() + $duration ) . "&A=" . $algorithm . "&K=" . $keyindex . "&P=" . $useparts . "&S=";
+}
+
+$verbose && print "signed string = " . $string . "\n";
+
+my $digest;
+if ( $algorithm == 1 ) {
+	$digest = hmac_sha1_hex( $string, $key );
+}
+else {
+	$digest = hmac_md5_hex( $string, $key );
+}
+my $qstring = ( split( /\?/, $string ) )[1];
+
+print "curl -s -o /dev/null -v --max-redirs 0 'http://" . $url . "?" . $qstring . $digest . "'\n";
+
+sub help {
+	print "sign.pl - Example signing utility in perl for signed URLs\n";
+	print "Usage: \n";
+	print "  ./sign.pl  --url <value> \\ \n";
+	print "             --useparts <value> \\ \n";
+	print "             --algorithm <value> \\ \n";
+	print "             --duration <value> \\ \n";
+	print "             --keyindex <value> \\ \n";
+	print "             [--client <value>] \\ \n";
+	print "             --key <value>  \\ \n";
+	print "             [--verbose] \n";
+	print "\n";
+}
diff --git a/plugins/experimental/url_sig/url_sig.c b/plugins/experimental/url_sig/url_sig.c
new file mode 100644
index 00000000..be85524e
--- /dev/null
+++ b/plugins/experimental/url_sig/url_sig.c
@@ -0,0 +1,476 @@
+/** @file
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "url_sig.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <time.h>
+#include <openssl/hmac.h>
+#include <openssl/evp.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <limits.h>
+#include <ctype.h>
+
+#include <ts/ts.h>
+#include <ts/remap.h>
+
+static const char *PLUGIN_NAME = "url_sig";
+
+struct config
+{
+  char *map_from;
+  char *map_to;
+  TSHttpStatus err_status;
+  char *err_url;
+  char keys[MAX_KEY_NUM][MAX_KEY_LEN];
+};
+
+TSReturnCode
+TSRemapInit(TSRemapInterface * api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[tsremap_init] - Invalid TSRemapInterface argument", (size_t) (errbuf_size - 1));
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapInit] - Incorrect API version %ld.%ld", api_info->tsremap_version >> 16,
+             (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  TSDebug(PLUGIN_NAME, "plugin is succesfully initialized");
+  return TS_SUCCESS;
+}
+
+// To force a config file reload touch remap.config and do a "traffic_line -x"
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void **ih, char *errbuf, int errbuf_size)
+{
+  char config_file[PATH_MAX];
+  struct config *cfg;
+
+  cfg = TSmalloc(sizeof(struct config));
+  *ih = (void *) cfg;
+
+  int i = 0;
+  for (i = 0; i < MAX_KEY_NUM; i++) {
+    cfg->keys[i][0] = '\0';
+  }
+
+  if (argc != 3) {
+    snprintf(errbuf, errbuf_size - 1,
+             "[TSRemapNewKeyInstance] - Argument count wrong (%d)... Need exactly two pparam= (config file name).",
+             argc);
+    return TS_ERROR;
+  }
+  TSDebug(PLUGIN_NAME, "Initializing remap function of %s -> %s with config from %s", argv[0], argv[1], argv[2]);
+  cfg->map_from = TSstrndup(argv[0], strlen(argv[0]));
+  cfg->map_to = TSstrndup(argv[0], strlen(argv[1]));
+
+  const char *install_dir = TSInstallDirGet();
+  snprintf(config_file, sizeof(config_file), "%s/%s/%s", install_dir, "etc/trafficserver", argv[2]);
+  TSDebug(PLUGIN_NAME, "config file name: %s", config_file);
+  FILE *file = fopen(config_file, "r");
+  if (file == NULL) {
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapNewInstance] - Error opening file %s.", config_file);
+    return TS_ERROR;
+  }
+
+  char line[260];
+  int line_no = 0;
+  int keynum;
+  while (fgets(line, sizeof(line), file) != NULL) {
+    TSDebug(PLUGIN_NAME, "LINE: %s (%d)", line, (int) strlen(line));
+    line_no++;
+    if (line[0] == '#' || strlen(line) <= 1)
+      continue;
+    char *pos = strchr(line, '=');
+    if (pos == NULL) {
+      TSError("Error parsing line %d of file %s (%s).", line_no, config_file, line);
+    }
+    *pos = '\0';
+    char *value = pos + 1;
+    while (isspace(*value))     // remove whitespace
+      value++;
+    pos = strchr(value, '\n');  // remove the new line, terminate the string
+    if (pos != NULL) {
+      *pos = '\0';
+    } else {
+      snprintf(errbuf, errbuf_size - 1, "[TSRemapNewInstance] - Maximum line (%d) exceeded on line %d.", MAX_KEY_LEN,
+               line_no);
+      return TS_ERROR;
+    }
+    if (strncmp(line, "key", 3) == 0) {
+      if (value != NULL) {
+        if (strncmp((char *) (line + 3), "0", 1) == 0) {
+          keynum = 0;
+        } else {
+          TSDebug(PLUGIN_NAME, ">>> %s <<<", line + 3);
+          keynum = atoi((char *) (line + 3));
+          if (keynum == 0) {
+            keynum = -1;        // Not a Number
+          }
+        }
+        TSDebug(PLUGIN_NAME, "key number %d == %s", keynum, value);
+        if (keynum > MAX_KEY_NUM || keynum == -1) {
+          snprintf(errbuf, errbuf_size - 1, "[TSRemapNewInstance] - Key number (%d) > MAX_KEY_NUM (%d) or NaN.", keynum,
+                   MAX_KEY_NUM);
+          return TS_ERROR;
+        }
+        strcpy(&cfg->keys[keynum][0], value);
+      }
+    } else if (strncmp(line, "error_url", 9) == 0) {
+      if (atoi(value)) {
+        cfg->err_status = atoi(value);
+      }
+      value += 3;
+      while (isspace(*value))
+        value++;
+//                      if (strncmp(value, "http://", strlen("http://")) != 0) {
+//                              snprintf(errbuf, errbuf_size - 1,
+//                                              "[TSRemapNewInstance] - Invalid config, err_status == 302, but err_url does not start with \"http://\"");
+//                              return TS_ERROR;
+//                      }
+      if (cfg->err_status == TS_HTTP_STATUS_MOVED_TEMPORARILY)
+        cfg->err_url = TSstrndup(value, strlen(value));
+      else
+        cfg->err_url = NULL;
+    } else {
+      TSError("Error parsing line %d of file %s (%s).", line_no, config_file, line);
+    }
+  }
+
+  switch (cfg->err_status) {
+  case TS_HTTP_STATUS_MOVED_TEMPORARILY:
+    if (cfg->err_url == NULL) {
+      snprintf(errbuf, errbuf_size - 1,
+               "[TSRemapNewInstance] - Invalid config, err_status == 302, but err_url == NULL");
+      return TS_ERROR;
+    }
+    printf("[url_sig] mapping {%s -> %s} with status %d and err url %s\n", argv[0], argv[1], cfg->err_status,
+           cfg->err_url);
+    break;
+  case TS_HTTP_STATUS_FORBIDDEN:
+    if (cfg->err_url != NULL) {
+      snprintf(errbuf, errbuf_size - 1,
+               "[TSRemapNewInstance] - Invalid config, err_status == 403, but err_url != NULL");
+      return TS_ERROR;
+    }
+    printf("[url_sig] mapping {%s -> %s} with status %d\n", argv[0], argv[1], cfg->err_status);
+    break;
+  default:
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapNewInstance] - Return code %d not supported.", cfg->err_status);
+    return TS_ERROR;
+
+  }
+
+  i = 0;
+  for (i = 0; i < MAX_KEY_NUM; i++) {
+    if (cfg->keys[i] != NULL && strlen(cfg->keys[i]) > 0)
+      printf("[url_sig] shared secret key[%d] = %s\n", i, cfg->keys[i]);
+  }
+  fclose(file);
+  printf("%s version %s initialized.\n", PLUGIN_NAME, VERSION);
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void *ih)
+{
+  struct config *cfg;
+  cfg = (struct config *) ih;
+
+  TSError("Cleaning up...");
+  TSfree(cfg->map_from);
+  TSfree(cfg->map_to);
+  TSfree(cfg->err_url);
+  TSfree(cfg);
+}
+
+void
+err_log(char *url, char *msg)
+{
+  if (msg && url) {
+    TSDebug(PLUGIN_NAME, "[URL=%s]: %s", url, msg);
+    TSError("[URL=%s]: %s", url, msg);  // This goes to error.log
+  } else {
+    TSError("Invalid err_log request");
+  }
+}
+
+TSRemapStatus
+TSRemapDoRemap(void *ih, TSHttpTxn txnp, TSRemapRequestInfo * rri)
+{
+  struct config *cfg;
+  cfg = (struct config *) ih;
+
+  int url_len = 0;
+  time_t expiration = 0;
+  int algorithm = -1;
+  int keyindex = -1;
+  int cmp_res;
+  int rval;
+  int i = 0;
+  int j = 0;
+  unsigned int sig_len = 0;
+
+  /* all strings are locally allocated except url... about 25k per instance */
+  char *url;
+  char signed_part[8192] = { '\0' };    // this initializes the whole array and is needed
+  char urltokstr[8192] = { '\0' };
+  char client_ip[CIP_STRLEN] = { '\0' };
+  char ipstr[CIP_STRLEN] = { '\0' };
+  unsigned char sig[MAX_SIG_SIZE + 1];
+  char sig_string[2 * MAX_SIG_SIZE + 1];
+
+  /* these are just pointers into other allocations */
+  char *signature = NULL;
+  char *parts = NULL;
+  char *part = NULL;
+  char *p = NULL, *pp = NULL;
+  char *query = NULL;
+
+  int retval, sockfd;
+  socklen_t peer_len;
+  struct sockaddr_in peer;
+
+  url = TSUrlStringGet(rri->requestBufp, rri->requestUrl, &url_len);
+
+  if (url_len >= MAX_REQ_LEN - 1) {
+    err_log(url, "URL string too long.");
+    goto deny;
+  }
+
+  TSDebug(PLUGIN_NAME, "%s", url);
+
+  query = strstr(url, "?");
+  if (query == NULL) {
+    err_log(url, "Has no query string.");
+    goto deny;
+  }
+
+  if (strncmp(url, "http://", strlen("http://")) != 0) {
+    err_log(url, "Invalid URL scheme - only http supported.");
+    goto deny;
+  }
+
+  /* first, parse the query string */
+  query++;                      /* get rid of the ? */
+  TSDebug(PLUGIN_NAME, "Query string is:%s", query);
+
+  // Client IP - this one is optional
+  p = strstr(query, CIP_QSTRING "=");
+  if (p != NULL) {
+
+    p += strlen(CIP_QSTRING + 1);
+    pp = strstr(p, "&");
+    if ((pp - p) > CIP_STRLEN - 1 || (pp - p) < 4) {
+      err_log(url, "IP address string too long or short.");
+      goto deny;
+    }
+    strncpy(client_ip, p + strlen(CIP_QSTRING) + 1, (pp - p - (strlen(CIP_QSTRING) + 1)));
+    client_ip[pp - p - (strlen(CIP_QSTRING) + 1)] = '\0';
+    TSDebug(PLUGIN_NAME, "CIP: -%s-", client_ip);
+    retval = TSHttpTxnClientFdGet(txnp, &sockfd);
+    if (retval != TS_SUCCESS) {
+      err_log(url, "Error getting sockfd.");
+      goto deny;
+    }
+    peer_len = sizeof(peer);
+    if (getpeername(sockfd, (struct sockaddr *) &peer, &peer_len) != 0) {
+      perror("Can't get peer address:");
+    }
+    struct sockaddr_in *s = (struct sockaddr_in *) &peer;
+    inet_ntop(AF_INET, &s->sin_addr, ipstr, sizeof ipstr);
+    TSDebug(PLUGIN_NAME, "Peer address: -%s-", ipstr);
+    if (strcmp(ipstr, client_ip) != 0) {
+      err_log(url, "Client IP doesn't match signature.");
+      goto deny;
+    }
+  }
+  // Expiration
+  p = strstr(query, EXP_QSTRING "=");
+  if (p != NULL) {
+    p += strlen(EXP_QSTRING) + 1;
+    expiration = atoi(p);
+    if (expiration == 0 || expiration < time(NULL)) {
+      err_log(url, "Invalid expiration, or expired.");
+      goto deny;
+    }
+    TSDebug(PLUGIN_NAME, "Exp: %d", (int) expiration);
+  } else {
+    err_log(url, "Expiration query string not found.");
+    goto deny;
+  }
+  // Algorithm
+  p = strstr(query, ALG_QSTRING "=");
+  if (p != NULL) {
+    p += strlen(ALG_QSTRING) + 1;
+    algorithm = atoi(p);
+    // The check for a valid algorithm is later.
+    TSDebug(PLUGIN_NAME, "Algorithm: %d", algorithm);
+  } else {
+    err_log(url, "Algorithm query string not found.");
+    goto deny;
+  }
+  // Key index
+  p = strstr(query, KIN_QSTRING "=");
+  if (p != NULL) {
+    p += strlen(KIN_QSTRING) + 1;
+    keyindex = atoi(p);
+    if (keyindex == -1) {
+      err_log(url, "Invalid key index.");
+      goto deny;
+    }
+    TSDebug(PLUGIN_NAME, "Key Index: %d", keyindex);
+  } else {
+    err_log(url, "KeyIndex query string not found.");
+    goto deny;
+  }
+  // Parts
+  p = strstr(query, PAR_QSTRING "=");
+  if (p != NULL) {
+    p += strlen(PAR_QSTRING) + 1;
+    parts = p;                  // NOTE parts is not NULL terminated it is terminated by "&" of next param
+    p = strstr(parts, "&");
+    TSDebug(PLUGIN_NAME, "Parts: %.*s", (int) (p - parts), parts);
+  } else {
+    err_log(url, "PartsSigned query string not found.");
+    goto deny;
+  }
+  // And finally, the sig (has to be last)
+  p = strstr(query, SIG_QSTRING "=");
+  if (p != NULL) {
+    p += strlen(SIG_QSTRING) + 1;
+    signature = p;              // NOTE sig is not NULL terminated, it has to be 20 chars
+    if ((algorithm == USIG_HMAC_SHA1 && strlen(signature) < SHA1_SIG_SIZE) ||
+        (algorithm == USIG_HMAC_MD5 && strlen(signature) < MD5_SIG_SIZE)) {
+      err_log(url, "Signature query string too short (< 20).");
+      goto deny;
+    }
+  } else {
+    err_log(url, "Signature query string not found.");
+    goto deny;
+  }
+
+  /* have the query string, and parameters passed initial checks */
+  TSDebug(PLUGIN_NAME, "Found all needed parameters: C=%s E=%d A=%d K=%d P=%s S=%s", client_ip, (int) expiration,
+          algorithm, keyindex, parts, signature);
+
+  /* find the string that was signed - cycle through the parts letters, adding the part of the fqdn/path if it is 1 */
+  p = strstr(url, "?");
+  memcpy(urltokstr, &url[strlen("http://")], p - url - strlen("http://"));
+  part = strtok_r(urltokstr, "/", &p);
+  while (part != NULL) {
+    if (parts[j] == '1') {
+      strcpy(signed_part + strlen(signed_part), part);
+      strcpy(signed_part + strlen(signed_part), "/");
+    }
+    if (parts[j + 1] == '0' || parts[j + 1] == '1')     // This remembers the last part, meaning, if there are no more valid letters in parts
+      j++;                      // will keep repeating the value of the last one
+    part = strtok_r(NULL, "/", &p);
+  }
+
+  signed_part[strlen(signed_part) - 1] = '?';   // chop off the last /, replace with '?'
+  p = strstr(query, SIG_QSTRING "=");
+  strncat(signed_part, query, (p - query) + strlen(SIG_QSTRING) + 1);
+
+  TSDebug(PLUGIN_NAME, "Signed string=\"%s\"", signed_part);
+
+  /* calculate the expected the signature with the right algorithm */
+  switch (algorithm) {
+  case USIG_HMAC_SHA1:
+    HMAC(EVP_sha1(), (const unsigned char *) cfg->keys[keyindex], strlen(cfg->keys[keyindex]),
+         (const unsigned char *) signed_part, strlen(signed_part), sig, &sig_len);
+    if (sig_len != SHA1_SIG_SIZE) {
+      TSDebug(PLUGIN_NAME, "sig_len: %d", sig_len);
+      err_log(url, "Calculated sig len !=  SHA1_SIG_SIZE !");
+      goto deny;
+    }
+
+    break;
+  case USIG_HMAC_MD5:
+    HMAC(EVP_md5(), (const unsigned char *) cfg->keys[keyindex], strlen(cfg->keys[keyindex]),
+         (const unsigned char *) signed_part, strlen(signed_part), sig, &sig_len);
+    if (sig_len != MD5_SIG_SIZE) {
+      TSDebug(PLUGIN_NAME, "sig_len: %d", sig_len);
+      err_log(url, "Calculated sig len !=  MD5_SIG_SIZE !");
+      goto deny;
+    }
+    break;
+  default:
+    err_log(url, "Algorithm not supported.");
+    goto deny;
+  }
+
+  for (i = 0; i < sig_len; i++) {
+    sprintf(&(sig_string[i * 2]), "%02x", sig[i]);
+  }
+
+  TSDebug(PLUGIN_NAME, "Expected signature: %s", sig_string);
+
+  /* and compare to signature that was sent */
+  cmp_res = strncmp(sig_string, signature, sig_len * 2);
+  if (cmp_res != 0) {
+    err_log(url, "Signature check failed.");
+    goto deny;
+  } else {
+    TSDebug(PLUGIN_NAME, "Signature check passed.");
+    goto allow;
+  }
+
+  /* ********* Deny ********* */
+deny:if (url)
+    TSfree(url);
+  switch (cfg->err_status) {
+  case TS_HTTP_STATUS_MOVED_TEMPORARILY:
+    TSDebug(PLUGIN_NAME, "Redirecting to %s", cfg->err_url);
+    char *start, *end;
+    start = cfg->err_url;
+    end = start + strlen(cfg->err_url);
+    if (TSUrlParse(rri->requestBufp, rri->requestUrl, (const char **) &start, end) != TS_PARSE_DONE) {
+      err_log("url", "Error inn TSUrlParse!");
+    }
+    rri->redirect = 1;
+    break;
+  case TS_HTTP_STATUS_FORBIDDEN:
+  default:
+    /* set status and body to be 403 */
+    TSHttpTxnSetHttpRetStatus(txnp, TS_HTTP_STATUS_FORBIDDEN);
+    TSHttpTxnErrorBodySet(txnp, TSstrdup("Authorization Denied"), strlen("Authorization Denied") - 1,
+                          TSstrdup("text/plain"));
+    break;
+  }
+  return TSREMAP_DID_REMAP;
+
+  /* ********* Allow ********* */
+allow:if (url)
+    TSfree(url);
+  /* drop the query string so we can cache-hit */
+  rval = TSUrlHttpQuerySet(rri->requestBufp, rri->requestUrl, NULL, 0);
+  if (rval != TS_SUCCESS) {
+    TSError("Error stripping query string: %d.", rval);
+  }
+  return TSREMAP_NO_REMAP;
+}
diff --git a/plugins/experimental/url_sig/url_sig.h b/plugins/experimental/url_sig/url_sig.h
new file mode 100644
index 00000000..dd24cc75
--- /dev/null
+++ b/plugins/experimental/url_sig/url_sig.h
@@ -0,0 +1,52 @@
+/** @file
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef URL_SIG_H_
+#define URL_SIG_H_
+
+#define VERSION     "1.0"
+/* in the query string that we add to sign the url: */
+#define CIP_QSTRING "C"         /* C=24.0.33.12 designates the client IP address */
+#define EXP_QSTRING "E"         /* E=1356128799 means expires at (seconds since Unix epoch) */
+#define ALG_QSTRING "A"         /* A=1 means hashing algorithm 1 */
+#define KIN_QSTRING "K"         /* K=3 means use key number 3 */
+#define PAR_QSTRING "P"         /* P=1110 means use parts 0, 1 and 2 (and no more) for the hashing of the url after removing the 'http://' */
+                         /* and making the parts by doing a split("/") */
+#define SIG_QSTRING "S"         /* S=9e2828d570a4bee3c964f698b0985ee58b9f6b64 means 9e2828d570a4bee3c964f698b0985ee58b9f6b64 is the sig
+                                   This one has to be the last one of the string */
+
+#define CIP_STRLEN 20
+#define EXP_STRLEN 16
+#define PAR_STRLEN 16
+#define MAX_PARTS 32
+
+#define MAX_HTTP_REQUEST_SIZE 8192      //
+
+#define MAX_SIG_SIZE 20
+#define SHA1_SIG_SIZE 20
+#define MD5_SIG_SIZE 16
+
+#define MAX_REQ_LEN 8192
+#define MAX_KEY_LEN 256
+#define MAX_KEY_NUM 16
+
+#define USIG_HMAC_SHA1  1
+#define USIG_HMAC_MD5  2
+
+
+#endif /* URL_SIG_H_ */
diff --git a/plugins/experimental/xdebug/Makefile.am b/plugins/experimental/xdebug/Makefile.am
new file mode 100644
index 00000000..452c2106
--- /dev/null
+++ b/plugins/experimental/xdebug/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = xdebug.la
+xdebug_la_SOURCES = xdebug.cc
+xdebug_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
diff --git a/plugins/experimental/xdebug/Makefile.in b/plugins/experimental/xdebug/Makefile.in
new file mode 100644
index 00000000..965aec3e
--- /dev/null
+++ b/plugins/experimental/xdebug/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
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+am__nobase_list = $(am__nobase_strip_setup); \
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+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+  test -z "$$files" \
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+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
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+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = xdebug.la
+xdebug_la_SOURCES = xdebug.cc
+xdebug_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/experimental/xdebug/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/experimental/xdebug/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+xdebug.la: $(xdebug_la_OBJECTS) $(xdebug_la_DEPENDENCIES) $(EXTRA_xdebug_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(xdebug_la_LINK) -rpath $(pkglibdir) $(xdebug_la_OBJECTS) $(xdebug_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xdebug.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/experimental/xdebug/xdebug.cc b/plugins/experimental/xdebug/xdebug.cc
new file mode 100644
index 00000000..7f64dd9d
--- /dev/null
+++ b/plugins/experimental/xdebug/xdebug.cc
@@ -0,0 +1,216 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ts/ts.h>
+#include <stdlib.h>
+#include <strings.h>
+
+// The name of the debug request header. This should probably be configurable.
+#define X_DEBUG_HEADER "X-Debug"
+
+#define XHEADER_X_CACHE_KEY   0x0004u
+
+static int XArgIndex = 0;
+static TSCont XInjectHeadersCont = NULL;
+
+// Return the length of a string literal.
+template <int N> unsigned
+lengthof(const char (&)[N]) {
+  return N - 1;
+}
+
+static TSMLoc
+FindOrMakeHdrField(TSMBuffer buffer, TSMLoc hdr, const char * name, unsigned len)
+{
+  TSMLoc field;
+
+  field = TSMimeHdrFieldFind(buffer, hdr, name, len);
+  if (field == TS_NULL_MLOC) {
+      if (TSMimeHdrFieldCreateNamed(buffer, hdr, name, len, &field) == TS_SUCCESS) {
+          TSReleaseAssert(TSMimeHdrFieldAppend(buffer, hdr, field) == TS_SUCCESS);
+      }
+  }
+
+  return field;
+}
+
+static void
+InjectCacheKeyHeader(TSHttpTxn txn, TSMBuffer buffer, TSMLoc hdr)
+{
+  TSMLoc url = TS_NULL_MLOC;
+  TSMLoc dst = TS_NULL_MLOC;
+
+  struct { char * ptr; int len; } strval = { NULL, 0 };
+
+  TSDebug("xdebug", "attempting to inject X-Cache-Key header");
+
+  if (TSUrlCreate(buffer, &url) != TS_SUCCESS) {
+    goto done;
+  }
+
+  if (TSHttpTxnCacheLookupUrlGet(txn, buffer, url) != TS_SUCCESS) {
+    goto done;
+  }
+
+  strval.ptr = TSUrlStringGet(buffer, url, &strval.len);
+  if (strval.ptr == NULL || strval.len == 0) {
+    goto done;
+  }
+
+  // Create a new response header field.
+  dst = FindOrMakeHdrField(buffer, hdr, "X-Cache-Key", lengthof("X-Cache-Key"));
+  if (dst == TS_NULL_MLOC) {
+    goto done;
+  }
+
+  // Now copy the cache lookup URL into the response header.
+  TSReleaseAssert(
+    TSMimeHdrFieldValueStringInsert(buffer, hdr, dst, 0 /* idx */, strval.ptr, strval.len) == TS_SUCCESS
+  );
+
+done:
+  if (dst != TS_NULL_MLOC) {
+    TSHandleMLocRelease(buffer, hdr, dst);
+  }
+
+  if (url != TS_NULL_MLOC) {
+    TSHandleMLocRelease(buffer, TS_NULL_MLOC, url);
+  }
+
+  TSfree(strval.ptr);
+}
+
+static int
+XInjectResponseHeaders(TSCont /* contp */, TSEvent event, void * edata)
+{
+  TSHttpTxn   txn = (TSHttpTxn)edata;
+  intptr_t    xheaders = 0;
+  TSMBuffer   buffer;
+  TSMLoc      hdr;
+
+  TSReleaseAssert(event == TS_EVENT_HTTP_SEND_RESPONSE_HDR);
+
+  xheaders = (intptr_t)TSHttpTxnArgGet(txn, XArgIndex);
+  if (xheaders == 0) {
+    goto done;
+  }
+
+  if (TSHttpTxnClientRespGet(txn, &buffer, &hdr) == TS_ERROR) {
+    goto done;
+  }
+
+  if (xheaders & XHEADER_X_CACHE_KEY) {
+    InjectCacheKeyHeader(txn, buffer, hdr);
+  }
+
+done:
+  TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+  return TS_EVENT_NONE;
+}
+
+// Scan the client request headers and determine which debug headers they
+// want in the response.
+static int
+XScanRequestHeaders(TSCont /* contp */, TSEvent event, void * edata)
+{
+  TSHttpTxn   txn = (TSHttpTxn)edata;
+  intptr_t    xheaders = 0;
+  TSMLoc      field, next;
+  TSMBuffer   buffer;
+  TSMLoc      hdr;
+
+  TSReleaseAssert(event == TS_EVENT_HTTP_READ_REQUEST_HDR);
+
+  if (TSHttpTxnClientReqGet(txn, &buffer, &hdr) == TS_ERROR) {
+    goto done;
+  }
+
+  TSDebug("xdebug", "scanning for %s header values", X_DEBUG_HEADER);
+
+  // Walk the X-Debug header values and determine what to inject into the response.
+  field = TSMimeHdrFieldFind(buffer, hdr, X_DEBUG_HEADER, lengthof(X_DEBUG_HEADER));
+  while (field != TS_NULL_MLOC) {
+    int count = TSMimeHdrFieldValuesCount(buffer, hdr, field);
+
+    for (int i = 0; i < count; ++i) {
+      const char * value;
+      int vsize;
+
+      value = TSMimeHdrFieldValueStringGet(buffer, hdr, field, i, &vsize);
+      if (value == NULL || vsize == 0) {
+        continue;
+      }
+
+      if (strncasecmp("x-cache-key", value, vsize) == 0) {
+        xheaders |= XHEADER_X_CACHE_KEY;
+      } else if (strncasecmp("via", value, vsize) == 0) {
+        // If the client requests the Via header, enable verbose Via debugging for this transaction.
+        TSHttpTxnConfigIntSet(txn, TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR, 3);
+      } else {
+        TSDebug("xdebug", "ignoring unrecognized debug tag '%.*s'", vsize, value);
+      }
+    }
+
+    // Get the next duplicate.
+    next = TSMimeHdrFieldNextDup(buffer, hdr, field);
+
+    // Destroy the current field that we have. We don't want this to go through and potentially confuse the origin.
+    TSMimeHdrFieldDestroy(buffer, hdr, field);
+
+    // Now release our reference.
+    TSHandleMLocRelease(buffer, hdr, field);
+
+    // And go to the next field.
+    field = next;
+  }
+
+  if (xheaders) {
+    TSHttpTxnHookAdd(txn, TS_HTTP_SEND_RESPONSE_HDR_HOOK, XInjectHeadersCont);
+    TSHttpTxnArgSet(txn, XArgIndex, (void *)xheaders);
+  }
+
+done:
+  TSHttpTxnReenable(txn, TS_EVENT_HTTP_CONTINUE);
+  return TS_EVENT_NONE;
+}
+
+void
+TSPluginInit(int /* argc */, const char * /*argv */ [])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = (char *)"xdebug";
+  info.vendor_name = (char *)"Apache Software Foundation";
+  info.support_email = (char *)"dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("xdebug plugin registration failed");
+  }
+
+  TSReleaseAssert(
+    TSHttpArgIndexReserve("xdebug", "xdebug header requests" , &XArgIndex) == TS_SUCCESS
+  );
+
+  TSReleaseAssert(
+    XInjectHeadersCont = TSContCreate(XInjectResponseHeaders, NULL)
+  );
+
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, TSContCreate(XScanRequestHeaders, NULL));
+}
+
+// vim: set ts=2 sw=2 et :
diff --git a/plugins/gzip/Makefile.am b/plugins/gzip/Makefile.am
new file mode 100644
index 00000000..3c7861b8
--- /dev/null
+++ b/plugins/gzip/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = gzip.la
+gzip_la_SOURCES = gzip.cc configuration.cc misc.cc
+gzip_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/gzip/Makefile.in b/plugins/gzip/Makefile.in
new file mode 100644
index 00000000..a9c10232
--- /dev/null
+++ b/plugins/gzip/Makefile.in
@@ -0,0 +1,936 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
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+am__nobase_strip = \
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+am__nobase_list = $(am__nobase_strip_setup); \
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+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
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+am__uninstall_files_from_dir = { \
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+         $(am__cd) "$$dir" && rm -f $$files; }; \
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+am__installdirs = "$(DESTDIR)$(pkglibdir)"
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+am__v_lt_1 = 
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+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(gzip_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
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+am__v_at_0 = @
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+am__depfiles_maybe = depfiles
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+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
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+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(gzip_la_SOURCES)
+DIST_SOURCES = $(gzip_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
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+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+pkgdatadir = @pkgdatadir@
+pkglibdir = $(pkglibexecdir)
+pkglibexecdir = @pkglibexecdir@
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+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
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+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
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+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
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+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
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+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
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+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
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+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
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+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = gzip.la
+gzip_la_SOURCES = gzip.cc configuration.cc misc.cc
+gzip_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/gzip/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/gzip/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+gzip.la: $(gzip_la_OBJECTS) $(gzip_la_DEPENDENCIES) $(EXTRA_gzip_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(gzip_la_LINK) -rpath $(pkglibdir) $(gzip_la_OBJECTS) $(gzip_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/configuration.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gzip.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/misc.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/gzip/README b/plugins/gzip/README
new file mode 100644
index 00000000..6f3268e1
--- /dev/null
+++ b/plugins/gzip/README
@@ -0,0 +1,72 @@
+What this plugin does:
+
+=====================
+this plugin gzips or deflates or deflates responses, whichever is applicable
+it can compress origin respones as well as cached responses
+
+installation:
+make && sudo make install
+
+if no makefile is present, you can compile it using
+    tsxs -o gzip.so *.cc
+and then install it using 
+    tsxs -i -o gzip.so
+
+after installation, add a line to plugin.config:
+gzip.so
+
+in this case, the plugin will use a default behaviour:
+- use caching
+- compress text/* for every origin
+- don't hide accept encoding from origin servers (for an offloading reverse proxy)
+- no urls are disallowed from compression
+
+alternatively, a configuration can also be specified:
+gzip.so <path-to-plugin>/sample.gzip.config
+
+after modifying plugin.cofnig, restart traffic server (sudo traffic_line -L)
+the configuration is re-read when a management update is given (sudo traffic_line -x)
+
+a sample configuration (sample.gzip.config):
+
+######################################################################
+#flags and options are:
+#
+# enable-gzip: default true, set true/false to enable/disable plugin for specific host
+#
+# remove-accept-encoding: this sets if the plugin should hide the accept encoding from origin servers
+# - to ease the load on the origins
+# - for when the proxy parses responses, and the resulting compression/decompression
+#   is wastefull
+#
+# cache: when set, the plugin stores the uncompressed and compressed response as alternates
+#
+# compressible-content-type: wildcard pattern for matching compressible content types
+#
+# disallow: wildcard pattern for disablign compression on urls
+######################################################################
+
+#first, we configure the default/global plugin behaviour
+enabled true
+remove-accept-encoding true
+cache false
+
+compressible-content-type text/*
+compressible-content-type *javascript*
+#disabling is possible too
+compressible-content-type !text/javascript
+
+disallow /notthis/*.js
+disallow /notthat*
+disallow */bla*
+
+#override the global configuration for a host. 
+#www.foo.nl does NOT inherit anything
+[www.foo.nl]
+enabled true
+remove-accept-encoding true
+compressible-content-type text/*
+
+cache false
+disallow /notthis/*.js
+disallow /notthat*
diff --git a/plugins/gzip/configuration.cc b/plugins/gzip/configuration.cc
new file mode 100644
index 00000000..5e69c5c1
--- /dev/null
+++ b/plugins/gzip/configuration.cc
@@ -0,0 +1,259 @@
+/** @file
+
+  Transforms content using gzip or deflate
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "configuration.h"
+#include <fstream>
+#include <algorithm>
+#include <vector>
+#include <fnmatch.h>
+
+namespace Gzip {
+  using namespace std;
+
+  void ltrim_if(string& s, int (* fp) (int)) {
+    for (size_t i = 0; i < s.size();) {
+      if (fp(s[i])) {
+        s.erase(i,1);
+      } else  {
+        break;
+      }
+    }
+  }
+
+  void rtrim_if(string& s, int (* fp) (int)) {
+    for (ssize_t i = (ssize_t)s.size() - 1; i >= 0; i--) {
+      if (fp(s[i])) {
+        s.erase(i,1);
+      } else  {
+        break;
+      }
+    }
+  }
+
+  void trim_if(string& s, int (* fp) (int)) {
+    ltrim_if(s, fp);
+    rtrim_if(s, fp);
+  }
+
+  vector<string> tokenize(const string &s, int (* fp) (int)) {
+    vector<string> r;
+    string tmp;
+
+    for (size_t i = 0; i < s.size(); i++) {
+      if ( fp(s[i]) ) {
+        if ( tmp.size()  ) {
+          r.push_back(tmp);
+          tmp = "";
+        }
+      } else {
+          tmp += s[i];
+      }
+    }
+
+    if ( tmp.size()  ) {
+      r.push_back(tmp);
+    }
+
+    return r;
+  }
+
+  enum ParserState {
+    kParseStart,
+    kParseCompressibleContentType,
+    kParseRemoveAcceptEncoding,
+    kParseEnable,
+    kParseCache,
+    kParseDisallow,
+  };
+
+  void Configuration::AddHostConfiguration(HostConfiguration * hc){
+    host_configurations_.push_back(hc);
+  }
+
+  void HostConfiguration::add_disallow(const std::string & disallow) {
+    disallows_.push_back(disallow);
+  }
+
+  void HostConfiguration::add_compressible_content_type(const std::string & content_type) {
+    compressible_content_types_.push_back(content_type);
+  }
+
+  HostConfiguration * Configuration::Find(const char * host, int host_length) {
+    HostConfiguration * host_configuration = host_configurations_[0];
+
+    std::string shost(host, host_length);
+
+    for (size_t i = 1; i < host_configurations_.size(); i++ ) {
+      if (host_configurations_[i]->host() == shost){
+        host_configuration = host_configurations_[i];
+        break;
+      }
+    }
+
+    return host_configuration;
+  }
+
+  bool HostConfiguration::IsUrlAllowed(const char * url, int url_len) {
+    string surl(url, url_len);
+
+    for (size_t i = 0; i < disallows_.size(); i++) {
+      if ( fnmatch (disallows_[i].c_str(), surl.c_str(), 0) == 0 ) {
+        info("url [%s] disabled for compression, matched on pattern [%s]",
+            surl.c_str(), disallows_[i].c_str());
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  bool HostConfiguration::ContentTypeIsCompressible(const char * content_type, int content_type_length) {
+    string scontent_type(content_type, content_type_length);
+    bool is_match = false;
+    
+    for (size_t i = 0; i < compressible_content_types_.size(); i++) {
+      const char* match_string = compressible_content_types_[i].c_str();
+      bool exclude = match_string[0] == '!';
+      if (exclude) {
+        match_string++;//skip '!'
+      }
+      if ( fnmatch (match_string, scontent_type.c_str(), 0) == 0 ) {
+        info("compressible content type [%s], matched on pattern [%s]",
+            scontent_type.c_str(), compressible_content_types_[i].c_str());
+        is_match = !exclude;
+      }
+    }
+
+    return is_match;
+  }
+
+  Configuration * Configuration::Parse(const char * path ) {
+    string pathstring(path);
+
+    // If we have a path and it's not an absolute path, make it relative to the
+    // configuration directory.
+    if (!pathstring.empty() && pathstring[0] != '/') {
+      pathstring.assign(TSConfigDirGet());
+      pathstring.append("/");
+      pathstring.append(path);
+    }
+
+    trim_if(pathstring, isspace);
+
+    Configuration * c = new Configuration();
+    HostConfiguration * current_host_configuration = new HostConfiguration("");
+    c->AddHostConfiguration(current_host_configuration);
+
+    if (pathstring.empty())  {
+      return c;
+    }
+
+    path = pathstring.c_str();
+    info("Parsing file \"%s\"", path);
+    std::ifstream f;
+
+    size_t lineno = 0;
+
+    f.open(path, std::ios::in);
+
+    if (!f.is_open()) {
+      warning("could not open file [%s], skip",path);
+      return c;
+    }
+
+    enum ParserState state = kParseStart;
+
+    while (!f.eof()) {
+      std::string line;
+      getline(f, line);
+      ++lineno;
+
+      trim_if(line, isspace);
+      if (line.size() == 0) {
+        continue;
+      }
+
+      vector<string> v = tokenize( line, isspace );
+
+      for(size_t i = 0; i < v.size(); i++ ) {
+        string token = v[i];
+        trim_if(token, isspace);
+
+        //should not happen
+        if (!token.size()) continue;
+
+        //once a comment is encountered, we are done processing the line
+        if (token[0] == '#') break;
+
+        switch(state) {
+        case kParseStart:
+          if ( (token[0] == '[') && (token[token.size()-1] == ']')){
+            std::string current_host = token.substr(1,token.size()-2);
+            current_host_configuration = new HostConfiguration(current_host);
+            c->AddHostConfiguration(current_host_configuration);
+          } else if (token == "compressible-content-type" ) {
+            state = kParseCompressibleContentType;
+          } else if (token == "remove-accept-encoding" ) {
+            state = kParseRemoveAcceptEncoding;
+          } else if (token == "enabled" ) {
+            state = kParseEnable;
+          } else if (token == "cache" ) {
+            state = kParseCache;
+          } else if (token == "disallow" ) {
+            state = kParseDisallow;
+          }
+          else {
+            warning("failed to interpret \"%s\" at line %zu", token.c_str(), lineno);
+          }
+          break;
+        case kParseCompressibleContentType:
+          current_host_configuration->add_compressible_content_type(token);
+          state = kParseStart;
+          break;
+        case kParseRemoveAcceptEncoding:
+          current_host_configuration->set_remove_accept_encoding(token == "true");
+          state = kParseStart;
+          break;
+        case kParseEnable:
+          current_host_configuration->set_enabled(token == "true");
+          state = kParseStart;
+          break;
+        case kParseCache:
+          current_host_configuration->set_cache(token == "true");
+          state = kParseStart;
+          break;
+        case kParseDisallow:
+          current_host_configuration->add_disallow(token);
+          state = kParseStart;
+          break;
+        }
+      }
+    }
+
+    if (state != kParseStart) {
+      warning("the parser state indicates that data was expected when it reached the end of the file (%d)", state);
+    }
+
+    return c;
+  } //Configuration::Parse
+} //namespace
diff --git a/plugins/gzip/configuration.h b/plugins/gzip/configuration.h
new file mode 100644
index 00000000..b38cb643
--- /dev/null
+++ b/plugins/gzip/configuration.h
@@ -0,0 +1,84 @@
+/** @file
+
+  Transforms content using gzip or deflate
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef GZIP_CONFIGURATION_H_
+#define GZIP_CONFIGURATION_H_
+
+#include <string>
+#include <vector>
+#include "debug_macros.h"
+
+namespace Gzip  { 
+  class HostConfiguration {
+  public: //todo -> only configuration should be able to construct hostconfig
+    explicit HostConfiguration(const std::string & host)
+      : host_(host)
+      , enabled_(true)
+      , cache_(true)
+      , remove_accept_encoding_(false)
+    {}
+
+    inline bool enabled() { return enabled_; }
+    inline void set_enabled(bool x) { enabled_ = x; } 
+    inline bool cache() { return cache_; }
+    inline void set_cache(bool x) { cache_ = x; } 
+    inline bool remove_accept_encoding() { return remove_accept_encoding_; }
+    inline void set_remove_accept_encoding(bool x) { remove_accept_encoding_ = x; } 
+    inline std::string host() { return host_; }
+    void add_disallow(const std::string & disallow);
+    void add_compressible_content_type(const std::string & content_type);
+    bool IsUrlAllowed(const char * url, int url_len);
+    bool ContentTypeIsCompressible(const char * content_type, int content_type_length);
+
+  private:
+    std::string host_;
+    bool enabled_;
+    bool cache_;
+    bool remove_accept_encoding_;
+    std::vector<std::string> compressible_content_types_;
+    std::vector<std::string> disallows_;
+    DISALLOW_COPY_AND_ASSIGN(HostConfiguration);
+  };//class HostConfiguration
+
+  class Configuration {
+    friend class HostConfiguration;
+  public:
+    static Configuration * Parse(const char * path);
+    HostConfiguration * Find(const char * host, int host_length); 
+    inline HostConfiguration * GlobalConfiguration() {
+      return host_configurations_[0];
+    }
+
+  private:
+    explicit Configuration()  {}
+    void AddHostConfiguration(HostConfiguration * hc);
+
+    std::vector<HostConfiguration *> host_configurations_;
+    //todo: destructor. delete owned host configurations
+    DISALLOW_COPY_AND_ASSIGN(Configuration);
+  }; //class Configuration
+
+}//namespace
+
+#endif
diff --git a/plugins/gzip/debug_macros.h b/plugins/gzip/debug_macros.h
new file mode 100644
index 00000000..151de31d
--- /dev/null
+++ b/plugins/gzip/debug_macros.h
@@ -0,0 +1,59 @@
+/** @file
+
+  Transforms content using gzip or deflate
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _DBG_MACROS_H
+#define _DBG_MACROS_H
+
+#include <ts/ts.h>
+
+#define TAG "gzip"
+
+#define debug(fmt, args...) do {                                    \
+  TSDebug(TAG, "DEBUG: [%s:%d] [%s] " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+  } while (0)
+
+#define info(fmt, args...) do {                                    \
+  TSDebug(TAG, "INFO: " fmt, ##args ); \
+  } while (0)
+
+#define warning(fmt, args...) do {                                    \
+  TSDebug(TAG, "WARNING: " fmt, ##args ); \
+} while (0)
+
+#define error(fmt, args...) do {                                    \
+  TSError("[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+  TSDebug(TAG, "[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+} while (0)
+
+#define fatal(fmt, args...) do {                                    \
+  TSError("[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+  TSDebug(TAG, "[%s:%d] [%s] ERROR: " fmt, __FILE__, __LINE__, __FUNCTION__ , ##args ); \
+  exit(-1); \
+} while (0)
+
+//FIXME: this one doesn't deserve to be here
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+  TypeName(const TypeName&);               \
+  void operator=(const TypeName&)
+
+#endif //_DBG_MACROS_H
diff --git a/plugins/gzip/gzip.cc b/plugins/gzip/gzip.cc
new file mode 100644
index 00000000..ac654f7f
--- /dev/null
+++ b/plugins/gzip/gzip.cc
@@ -0,0 +1,808 @@
+/** @file
+
+  Transforms content using gzip or deflate
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <string>
+#include <string.h>
+#include <zlib.h>
+#include <ts/ts.h>
+#include "debug_macros.h"
+#include "misc.h"
+#include "configuration.h"
+
+#include "ink_defs.h"
+
+using namespace std;
+using namespace Gzip;
+
+//FIXME: custom dictionaries would be nice. configurable/content-type?
+//FIXME: look into autoscaling the compression level based on connection speed
+// a gprs device might benefit from a higher compression ratio, whereas a desktop w. high bandwith
+// might be served better with little or no compression at all
+//FIXME: look into compressing from the task thread pool
+//FIXME: make normalizing accept encoding configurable
+
+// from mod_deflate:
+// ZLIB's compression algorithm uses a
+// 0-9 based scale that GZIP does where '1' is 'Best speed' 
+// and '9' is 'Best compression'. Testing has proved level '6' 
+// to be about the best level to use in an HTTP Server. 
+
+const int ZLIB_COMPRESSION_LEVEL = 6;
+
+int arg_idx_hooked;
+int arg_idx_host_configuration;
+int arg_idx_url_disallowed;
+
+
+const char * global_hidden_header_name;
+Configuration* config = NULL;
+const char *dictionary = NULL;
+
+static GzipData *
+gzip_data_alloc(int compression_type)
+{
+  GzipData *data;
+  int err;
+
+  data = (GzipData *) TSmalloc(sizeof(GzipData));
+  data->downstream_vio = NULL;
+  data->downstream_buffer = NULL;
+  data->downstream_reader = NULL;
+  data->downstream_length = 0;
+  data->state = transform_state_initialized;
+  data->compression_type = compression_type;
+  data->zstrm.next_in = Z_NULL;
+  data->zstrm.avail_in = 0;
+  data->zstrm.total_in = 0;
+  data->zstrm.next_out = Z_NULL;
+  data->zstrm.avail_out = 0;
+  data->zstrm.total_out = 0;
+  data->zstrm.zalloc = gzip_alloc;
+  data->zstrm.zfree = gzip_free;
+  data->zstrm.opaque = (voidpf) 0;
+  data->zstrm.data_type = Z_ASCII;
+
+  int window_bits = (compression_type == COMPRESSION_TYPE_GZIP) ? WINDOW_BITS_GZIP : WINDOW_BITS_DEFLATE;
+
+  err = deflateInit2(&data->zstrm, ZLIB_COMPRESSION_LEVEL, Z_DEFLATED, window_bits, ZLIB_MEMLEVEL, Z_DEFAULT_STRATEGY);
+
+  if (err != Z_OK) {
+    fatal("gzip-transform: ERROR: deflateInit (%d)!", err);
+  }
+
+  if (dictionary) {
+    err = deflateSetDictionary(&data->zstrm, (const Bytef *) dictionary, strlen(dictionary));
+    if (err != Z_OK) {
+      fatal("gzip-transform: ERROR: deflateSetDictionary (%d)!", err);
+    }
+  }
+
+  return data;
+}
+
+
+static void
+gzip_data_destroy(GzipData * data)
+{
+  TSReleaseAssert(data);
+
+  //deflateEnd returnvalue ignore is intentional
+  //it would spew log on every client abort
+  deflateEnd(&data->zstrm);
+
+  if (data->downstream_buffer) {
+    TSIOBufferDestroy(data->downstream_buffer);
+  }
+
+  TSfree(data);
+}
+
+static TSReturnCode
+gzip_content_encoding_header(TSMBuffer bufp, TSMLoc hdr_loc, const int compression_type)
+{
+  TSReturnCode ret;
+  TSMLoc ce_loc;
+
+  // Delete Content-Encoding if present???
+
+  if ((ret = TSMimeHdrFieldCreateNamed(bufp, hdr_loc, "Content-Encoding", sizeof("Content-Encoding") - 1, &ce_loc)) == TS_SUCCESS) {
+    if (compression_type == COMPRESSION_TYPE_DEFLATE) {
+      ret = TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, ce_loc, -1, "deflate", sizeof("deflate") - 1);
+    } else if (compression_type == COMPRESSION_TYPE_GZIP) {
+      ret = TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, ce_loc, -1, "gzip", sizeof("gzip") - 1);
+    }
+    if (ret == TS_SUCCESS) {
+      ret = TSMimeHdrFieldAppend(bufp, hdr_loc, ce_loc);
+    }
+    TSHandleMLocRelease(bufp, hdr_loc, ce_loc);
+  }
+
+  if (ret != TS_SUCCESS) {
+    error("cannot add the Content-Encoding header");
+  }
+
+  return ret;
+}
+
+static TSReturnCode
+gzip_vary_header(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  TSReturnCode ret;
+  TSMLoc ce_loc;
+
+  ce_loc = TSMimeHdrFieldFind(bufp, hdr_loc, "Vary", sizeof("Vary") - 1);
+  if (ce_loc) {
+    int idx, count, len; 
+    const char *value;
+
+    count = TSMimeHdrFieldValuesCount(bufp, hdr_loc, ce_loc);
+    for(idx=0; idx<count; idx++) {
+      value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, ce_loc, idx, &len);
+      if (len &&
+          strncasecmp("Accept-Encoding", value, len) == 0) {
+        // Bail, Vary: Accept-Encoding already sent from origin
+        TSHandleMLocRelease(bufp, hdr_loc, ce_loc);
+        return TS_SUCCESS;
+      }
+    }
+
+    ret = TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, ce_loc, -1, "Accept-Encoding", sizeof("Accept-Encoding") - 1);
+    TSHandleMLocRelease(bufp, hdr_loc, ce_loc);
+  } else {
+    if ((ret = TSMimeHdrFieldCreateNamed(bufp, hdr_loc, "Vary", sizeof("Vary") - 1, &ce_loc)) == TS_SUCCESS) {
+      if ((ret = TSMimeHdrFieldValueStringInsert(bufp, hdr_loc, ce_loc, -1, "Accept-Encoding", sizeof("Accept-Encoding") - 1)) == TS_SUCCESS) {
+        ret = TSMimeHdrFieldAppend(bufp, hdr_loc, ce_loc);
+      }
+
+      TSHandleMLocRelease(bufp, hdr_loc, ce_loc);
+    }
+  }
+
+  if (ret != TS_SUCCESS) {
+    error("cannot add/update the Vary header");
+  }
+
+  return ret;
+}
+
+//FIXME: the etag alteration isn't proper. it should modify the value inside quotes
+//       specify a very header..
+static TSReturnCode
+gzip_etag_header(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  TSReturnCode ret = TS_SUCCESS;
+  TSMLoc ce_loc;
+
+  ce_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_ETAG, TS_MIME_LEN_ETAG);
+
+  if (ce_loc) {
+    int changetag = 1;
+    int strl;
+    const char *strv = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, ce_loc, -1, &strl);
+    //do not alter weak etags.
+    //FIXME: consider just making the etag weak for compressed content
+    if (strl >= 2) {
+      if ((strv[0] == 'w' || strv[0] == 'W') && strv[1] == '/') {
+        changetag = 0;
+      }
+      if (changetag) {
+        ret = TSMimeHdrFieldValueAppend(bufp, hdr_loc, ce_loc, 0, "-df", 3);
+      }
+    }
+    TSHandleMLocRelease(bufp, hdr_loc, ce_loc);
+  }
+
+  if (ret != TS_SUCCESS) {
+    error("cannot handle the %s header", TS_MIME_FIELD_ETAG);
+  }
+
+  return ret;
+}
+
+//FIXME: some things are potentially compressible. those responses
+static void
+gzip_transform_init(TSCont contp, GzipData * data)
+{
+  //update the vary, content-encoding, and etag response headers
+  //prepare the downstream for transforming
+
+  TSVConn downstream_conn;
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+
+  data->state = transform_state_output;
+
+  if (TSHttpTxnTransformRespGet(data->txn, &bufp, &hdr_loc) != TS_SUCCESS) {
+    error("Error TSHttpTxnTransformRespGet");
+    return;
+  }
+
+  if (gzip_content_encoding_header(bufp, hdr_loc, data->compression_type) == TS_SUCCESS &&
+      gzip_vary_header(bufp, hdr_loc) == TS_SUCCESS &&
+      gzip_etag_header(bufp, hdr_loc) == TS_SUCCESS) {
+    downstream_conn = TSTransformOutputVConnGet(contp);
+    data->downstream_buffer = TSIOBufferCreate();
+    data->downstream_reader = TSIOBufferReaderAlloc(data->downstream_buffer);
+    data->downstream_vio = TSVConnWrite(downstream_conn, contp, data->downstream_reader, INT64_MAX);
+  }
+
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+}
+
+
+
+static void
+gzip_transform_one(GzipData * data, TSIOBufferReader upstream_reader, int amount)
+{
+  TSIOBufferBlock downstream_blkp;
+  const char *upstream_buffer;
+  char *downstream_buffer;
+  int64_t upstream_length, downstream_length;
+  int err;
+
+  while (amount > 0) {
+    downstream_blkp = TSIOBufferReaderStart(upstream_reader);
+    if (!downstream_blkp) {
+      error("couldn't get from IOBufferBlock");
+      return;
+    }
+
+    upstream_buffer = TSIOBufferBlockReadStart(downstream_blkp, upstream_reader, &upstream_length);
+    if (!upstream_buffer) {
+      error("couldn't get from TSIOBufferBlockReadStart");
+      return;
+    }
+
+    if (upstream_length > amount) {
+      upstream_length = amount;
+    }
+
+    data->zstrm.next_in = (unsigned char *) upstream_buffer;
+    data->zstrm.avail_in = upstream_length;
+
+    while (data->zstrm.avail_in > 0) {
+      downstream_blkp = TSIOBufferStart(data->downstream_buffer);
+      downstream_buffer = TSIOBufferBlockWriteStart(downstream_blkp, &downstream_length);
+
+      data->zstrm.next_out = (unsigned char *) downstream_buffer;
+      data->zstrm.avail_out = downstream_length;
+
+      err = deflate(&data->zstrm, Z_NO_FLUSH);
+
+      if (err != Z_OK)
+        warning("deflate() call failed: %d", err);
+
+      if (downstream_length > data->zstrm.avail_out) {
+        TSIOBufferProduce(data->downstream_buffer, downstream_length - data->zstrm.avail_out);
+        data->downstream_length += (downstream_length - data->zstrm.avail_out);
+      }
+
+      if (data->zstrm.avail_out > 0) {
+        if (data->zstrm.avail_in != 0) {
+          error("gzip-transform: ERROR: avail_in is (%d): should be 0", data->zstrm.avail_in);
+        }
+      }
+    }
+
+    TSIOBufferReaderConsume(upstream_reader, upstream_length);
+    amount -= upstream_length;
+  }
+}
+
+static void
+gzip_transform_finish(GzipData * data)
+{
+  if (data->state == transform_state_output) {
+    TSIOBufferBlock downstream_blkp;
+    char *downstream_buffer;
+    int64_t downstream_length;
+    int err;
+
+    data->state = transform_state_finished;
+
+    for (;;) {
+      downstream_blkp = TSIOBufferStart(data->downstream_buffer);
+
+      downstream_buffer = TSIOBufferBlockWriteStart(downstream_blkp, &downstream_length);
+      data->zstrm.next_out = (unsigned char *) downstream_buffer;
+      data->zstrm.avail_out = downstream_length;
+
+      err = deflate(&data->zstrm, Z_FINISH);
+
+      if (downstream_length > (int64_t) data->zstrm.avail_out) {
+        TSIOBufferProduce(data->downstream_buffer, downstream_length - data->zstrm.avail_out);
+        data->downstream_length += (downstream_length - data->zstrm.avail_out);
+      }
+
+      if (err == Z_OK) {        /* some more data to encode */
+        continue;
+      }
+
+      if (err != Z_STREAM_END) {
+        warning("deflate should report Z_STREAM_END");
+      }
+      break;
+    }
+
+    if (data->downstream_length != (int64_t) (data->zstrm.total_out)) {
+      error("gzip-transform: ERROR: output lengths don't match (%d, %ld)", data->downstream_length,
+            data->zstrm.total_out);
+    }
+
+    gzip_log_ratio(data->zstrm.total_in, data->downstream_length);
+  }
+}
+
+
+static void
+gzip_transform_do(TSCont contp)
+{
+  TSVIO upstream_vio;
+  GzipData *data;
+  int64_t upstream_todo;
+  int64_t upstream_avail;
+  int64_t downstream_bytes_written;
+
+  data = (GzipData*)TSContDataGet(contp);
+  if (data->state == transform_state_initialized) {
+    gzip_transform_init(contp, data);
+  }
+
+  upstream_vio = TSVConnWriteVIOGet(contp);
+  downstream_bytes_written = data->downstream_length;
+
+  if (!TSVIOBufferGet(upstream_vio)) {
+    gzip_transform_finish(data);
+
+    TSVIONBytesSet(data->downstream_vio, data->downstream_length);
+
+    if (data->downstream_length > downstream_bytes_written) {
+      TSVIOReenable(data->downstream_vio);
+    }
+    return;
+  }
+
+  upstream_todo = TSVIONTodoGet(upstream_vio);
+
+  if (upstream_todo > 0) {
+    upstream_avail = TSIOBufferReaderAvail(TSVIOReaderGet(upstream_vio));
+
+    if (upstream_todo > upstream_avail) {
+      upstream_todo = upstream_avail;
+    }
+
+    if (upstream_todo > 0) {
+      gzip_transform_one(data, TSVIOReaderGet(upstream_vio), upstream_todo);
+      TSVIONDoneSet(upstream_vio, TSVIONDoneGet(upstream_vio) + upstream_todo);
+    }
+  }
+
+  if (TSVIONTodoGet(upstream_vio) > 0) {
+    if (upstream_todo > 0) {
+      if (data->downstream_length > downstream_bytes_written) {
+        TSVIOReenable(data->downstream_vio);
+      }
+      TSContCall(TSVIOContGet(upstream_vio), TS_EVENT_VCONN_WRITE_READY, upstream_vio);
+    }
+  } else {
+    gzip_transform_finish(data);
+    TSVIONBytesSet(data->downstream_vio, data->downstream_length);
+
+    if (data->downstream_length > downstream_bytes_written) {
+      TSVIOReenable(data->downstream_vio);
+    }
+
+    TSContCall(TSVIOContGet(upstream_vio), TS_EVENT_VCONN_WRITE_COMPLETE, upstream_vio);
+  }
+}
+
+
+static int
+gzip_transform(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  if (TSVConnClosedGet(contp)) {
+    gzip_data_destroy((GzipData*)TSContDataGet(contp));
+    TSContDestroy(contp);
+    return 0;
+  } else {
+    switch (event) {
+    case TS_EVENT_ERROR:{
+        debug("gzip_transform: TS_EVENT_ERROR starts");
+        TSVIO upstream_vio = TSVConnWriteVIOGet(contp);
+        TSContCall(TSVIOContGet(upstream_vio), TS_EVENT_ERROR, upstream_vio);
+      }
+      break;
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+    case TS_EVENT_VCONN_WRITE_READY:
+      gzip_transform_do(contp);
+      break;
+    case TS_EVENT_IMMEDIATE:
+      gzip_transform_do(contp);
+      break;
+    default:
+      warning("unknown event [%d]", event);
+      gzip_transform_do(contp);
+      break;
+    }
+  }
+
+  return 0;
+}
+
+
+static int
+gzip_transformable(TSHttpTxn txnp, int server, HostConfiguration * host_configuration, int *compress_type)
+{
+  /* Server response header */
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc field_loc;
+
+  /* Client request header */
+  TSMBuffer cbuf;
+  TSMLoc chdr;
+  TSMLoc cfield;
+
+  const char *value;
+  int nvalues;
+  int i, compression_acceptable, len;
+
+  TSHttpStatus resp_status;
+  if (server) {
+    TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+  } else {
+    TSHttpTxnCachedRespGet(txnp, &bufp, &hdr_loc);
+  }
+  resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+
+  //conservatively pick some statusses to compress
+  if (!(resp_status == 200 || resp_status == 404 || resp_status == 500)) {
+    info("http response status [%d] is not compressible", resp_status);
+    return 0;
+  }
+
+  TSHttpTxnClientReqGet(txnp, &cbuf, &chdr);
+
+  //the only compressible method is currently GET.
+  int method_length;
+  const char *method = TSHttpHdrMethodGet(cbuf, chdr, &method_length);
+  if (!(method_length == TS_HTTP_LEN_GET && memcmp(method, TS_HTTP_METHOD_GET, TS_HTTP_LEN_GET) == 0)) {
+    debug("method is not GET, not compressible");
+    TSHandleMLocRelease(cbuf, TS_NULL_MLOC, chdr);
+    return 0;
+  }
+
+  cfield = TSMimeHdrFieldFind(cbuf, chdr, TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING);
+  if (cfield != TS_NULL_MLOC) {
+    compression_acceptable = 0;
+    nvalues = TSMimeHdrFieldValuesCount(cbuf, chdr, cfield);
+    for (i=0; i<nvalues; i++) {
+      value = TSMimeHdrFieldValueStringGet(cbuf, chdr, cfield, i, &len);
+      if (!value) {
+        continue;
+      }
+
+      if (strncasecmp(value, "deflate", sizeof("deflate") - 1) == 0) {
+        compression_acceptable = 1;
+        *compress_type = COMPRESSION_TYPE_DEFLATE;
+        break;
+      } else if (strncasecmp(value, "gzip", sizeof("gzip") - 1) == 0) {
+        compression_acceptable = 1;
+        *compress_type = COMPRESSION_TYPE_GZIP;
+        break;
+      }
+    }
+
+    TSHandleMLocRelease(cbuf, chdr, cfield);
+    TSHandleMLocRelease(cbuf, TS_NULL_MLOC, chdr);
+
+    if (!compression_acceptable) {
+      info("no acceptable encoding found in request header, not compressible");
+      return 0;
+    }
+  } else {
+    info("no acceptable encoding found in request header, not compressible");
+    TSHandleMLocRelease(cbuf, chdr, cfield);
+    TSHandleMLocRelease(cbuf, TS_NULL_MLOC, chdr);
+    return 0;
+  }
+
+  if (server) {
+    TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc);
+  } else {
+    TSHttpTxnCachedRespGet(txnp, &bufp, &hdr_loc);
+  }
+
+  /* If there already exists a content encoding then we don't want
+     to do anything. */
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_ENCODING, -1);
+  if (field_loc) {
+    info("response is already content encoded, not compressible");
+    TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return 0;
+  }
+
+  /* We only want to do gzip compression on documents that have a
+     content type of "text/" or "application/x-javascript". */
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_CONTENT_TYPE, -1);
+  if (!field_loc) {
+    info("no content type header found, not compressible");
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return 0;
+  }
+
+  value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, -1, &len);
+
+  int rv = host_configuration->ContentTypeIsCompressible(value, len);
+  if (!rv) { 
+    info("content-type [%.*s] not compressible", len, value);
+  }
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  return rv;
+}
+
+
+static void
+gzip_transform_add(TSHttpTxn txnp, int /* server ATS_UNUSED */, HostConfiguration * hc, int compress_type)
+{
+  int *tmp = (int *) TSHttpTxnArgGet(txnp, arg_idx_hooked);
+  if (tmp) {
+    //happens on cache_stale_hit
+    debug("transform hook already set, bail");
+    return;
+  } else {
+    TSHttpTxnArgSet(txnp, arg_idx_hooked, (void *) &GZIP_ONE);
+    info("adding compression transform");
+  }
+
+  TSHttpTxnUntransformedRespCache(txnp, 1);
+
+  if (!hc->cache()) {
+    TSHttpTxnTransformedRespCache(txnp, 0);
+  } else { 
+    TSHttpTxnTransformedRespCache(txnp, 1);
+  }
+
+  TSVConn connp;
+  GzipData *data;
+
+  connp = TSTransformCreate(gzip_transform, txnp);
+  data = gzip_data_alloc(compress_type);
+  data->txn = txnp;
+
+  TSContDataSet(connp, data);
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+}
+
+static int
+cache_transformable(TSHttpTxn txnp)
+{
+  int obj_status;
+
+  if (TSHttpTxnCacheLookupStatusGet(txnp, &obj_status) == TS_ERROR) {
+    warning("Couldn't get cache status of object");
+    return 0;
+  }
+  if (obj_status == TS_CACHE_LOOKUP_HIT_STALE) {
+    info("stale cache hit");
+    return 0;
+  }
+  if (obj_status == TS_CACHE_LOOKUP_HIT_FRESH) {
+    info("fresh cache hit");
+    return 1;
+  }
+
+  return 0;
+}
+
+HostConfiguration * 
+find_host_configuration(TSHttpTxn /* txnp ATS_UNUSED */, TSMBuffer bufp, TSMLoc locp)
+{
+  TSMLoc fieldp = TSMimeHdrFieldFind(bufp, locp, TS_MIME_FIELD_HOST, TS_MIME_LEN_HOST);
+
+  if (fieldp) {
+    int strl;
+    const char *strv = TSMimeHdrFieldValueStringGet(bufp, locp, fieldp, -1, &strl);
+    TSHandleMLocRelease(bufp, locp, fieldp);
+
+    HostConfiguration * host_configuration = config->Find(strv, strl);   
+    return host_configuration;
+  }
+
+  return config->GlobalConfiguration();
+}
+
+
+static int
+transform_plugin(TSCont /* contp ATS_UNUSED */, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  int compress_type = COMPRESSION_TYPE_DEFLATE;
+
+  switch (event) {
+    case TS_EVENT_HTTP_READ_REQUEST_HDR:
+      {
+        TSMBuffer req_buf;
+        TSMLoc req_loc;
+        if (TSHttpTxnClientReqGet(txnp, &req_buf, &req_loc) == TS_SUCCESS) {
+          int url_len;
+          char * url = TSHttpTxnEffectiveUrlStringGet(txnp, &url_len);
+          HostConfiguration * hc = find_host_configuration(txnp, req_buf, req_loc);
+          //we could clone the hosting configuration here, to make it deletable on reload?
+          TSHttpTxnArgSet(txnp, arg_idx_host_configuration, (void *) hc);
+
+          if (!hc->enabled() || !hc->IsUrlAllowed(url, url_len)) {
+            //FIXME: no double negatives
+            TSHttpTxnArgSet(txnp, arg_idx_url_disallowed, (void *) &GZIP_ONE);
+            info("url [%.*s] not allowed", url_len, url);
+          } else {
+            normalize_accept_encoding(txnp, req_buf, req_loc);	
+          }
+          TSfree(url);
+          TSHandleMLocRelease(req_buf, TS_NULL_MLOC, req_loc);
+        }
+        TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      }
+      break;
+
+    case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+      {
+        //os: the accept encoding header needs to be restored..
+        //otherwise the next request won't get a cache hit on this
+        HostConfiguration * hc = (HostConfiguration*)TSHttpTxnArgGet(txnp, arg_idx_host_configuration);
+        if (hc != NULL) { 
+          if (hc->remove_accept_encoding()) {
+            TSMBuffer req_buf;
+            TSMLoc req_loc;
+            if (TSHttpTxnServerReqGet(txnp, &req_buf, &req_loc) == TS_SUCCESS) {
+              restore_accept_encoding(txnp, req_buf, req_loc, global_hidden_header_name);
+              TSHandleMLocRelease(req_buf, TS_NULL_MLOC, req_loc);
+            }
+          }
+
+          int allowed = !TSHttpTxnArgGet(txnp, arg_idx_url_disallowed);
+          if ( allowed && gzip_transformable(txnp, 1, hc, &compress_type)) {
+            gzip_transform_add(txnp, 1, hc, compress_type);
+          }
+        }
+        TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      }
+      break;
+
+    case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+      {
+        HostConfiguration * hc = (HostConfiguration*)TSHttpTxnArgGet(txnp, arg_idx_host_configuration);
+        if (hc!=NULL) {
+          if (hc->remove_accept_encoding()) {
+            TSMBuffer req_buf;
+            TSMLoc req_loc;
+            if (TSHttpTxnServerReqGet(txnp, &req_buf, &req_loc) == TS_SUCCESS) {
+              hide_accept_encoding(txnp, req_buf, req_loc, global_hidden_header_name);
+              TSHandleMLocRelease(req_buf, TS_NULL_MLOC, req_loc);
+            }
+          }
+        }
+        TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      }
+      break;
+
+    case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+      {
+        int allowed = !TSHttpTxnArgGet(txnp, arg_idx_url_disallowed);
+        HostConfiguration * hc = (HostConfiguration*)TSHttpTxnArgGet(txnp, arg_idx_host_configuration);
+        if ( hc != NULL ) { 
+          if (allowed && cache_transformable(txnp) && gzip_transformable(txnp, 0, hc, &compress_type)) {
+            gzip_transform_add(txnp, 0, hc, compress_type);
+          }
+        }
+        TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      }
+      break;
+
+    default:
+      fatal("gzip transform unknown event");
+  }
+
+  return 0;
+}
+
+
+static void
+read_configuration(TSCont contp) {
+  const char * path = (const char *)TSContDataGet(contp);
+  Configuration * newconfig = Configuration::Parse(path);
+
+  Configuration * oldconfig =__sync_lock_test_and_set(&config, newconfig);
+  debug("config swapped,old config %p", oldconfig);
+
+  //FIXME: we have leaked.
+  //consider cloning or refcounting the configuration passed to the txn
+  //to make deleting the old configuration possible
+  //if (config != NULL )
+  //  delete config;
+}
+
+static int
+management_update(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  TSReleaseAssert(event == TS_EVENT_MGMT_UPDATE);
+  info("management update event received");
+  read_configuration(contp);
+  return 0;
+}
+
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  string config_path;
+
+  if (argc > 2)  {
+    fatal("the gzip plugin does not accept more than 1 plugin argument");
+  } else if (argc == 2) { 
+    config_path = std::string(argv[1]);
+  }
+
+  info("TSPluginInit %s", argv[0]);
+
+  if (!register_plugin()) {
+    fatal("The gzip plugin failed to register");
+  }
+
+  //if (argc == 2) {
+  //  dictionary = load_dictionary(argv[1]);
+  //}
+
+  if (TSHttpArgIndexReserve("gzip", "for remembering if the hook was set", &arg_idx_hooked) != TS_SUCCESS) {
+    fatal("failed to reserve an argument index");
+  }
+  if (TSHttpArgIndexReserve("gzip", "for storing if compression is applicable", &arg_idx_host_configuration) != TS_SUCCESS) {
+    fatal("failed to reserve an argument index");
+  }
+  if (TSHttpArgIndexReserve("gzip", "for storing if compression is disallowed for this txn", &arg_idx_url_disallowed) != TS_SUCCESS) {
+    fatal("failed to reserve an argument index");
+  }
+
+  global_hidden_header_name = init_hidden_header_name();
+
+  TSCont management_contp = TSContCreate(management_update, NULL);
+  //fixme: never freed. there is no shutdown event?
+  char * p = (char*)TSmalloc(config_path.size()+1);
+  strcpy(p,config_path.c_str());
+  TSContDataSet(management_contp,(void*)p);
+  TSMgmtUpdateRegister(management_contp, TAG);
+  read_configuration(management_contp);
+
+  TSCont transform_contp = TSContCreate(transform_plugin, NULL);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, transform_contp);
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, transform_contp);
+  TSHttpHookAdd(TS_HTTP_SEND_REQUEST_HDR_HOOK, transform_contp);
+  TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, transform_contp);
+
+  info("loaded");
+}
diff --git a/plugins/gzip/misc.cc b/plugins/gzip/misc.cc
new file mode 100644
index 00000000..aeb6f306
--- /dev/null
+++ b/plugins/gzip/misc.cc
@@ -0,0 +1,197 @@
+/** @file
+
+  Transforms content using gzip or deflate
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ts/ts.h"
+#include "ink_defs.h"
+
+#include "misc.h"
+#include <string.h>
+#include <inttypes.h>
+#include "debug_macros.h"
+
+voidpf
+gzip_alloc(voidpf /* opaque ATS_UNUSED */, uInt items, uInt size)
+{
+  return (voidpf) TSmalloc(items * size);
+}
+
+void
+gzip_free(voidpf /* opaque ATS_UNUSED */, voidpf address)
+{
+  TSfree(address);
+}
+
+void
+normalize_accept_encoding(TSHttpTxn /* txnp ATS_UNUSED */, TSMBuffer reqp, TSMLoc hdr_loc)
+{
+  TSMLoc field = TSMimeHdrFieldFind(reqp, hdr_loc, TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING);
+  int deflate = 0;
+  int gzip = 0;
+
+  //remove the accept encoding field(s), 
+  //while finding out if gzip or deflate is supported.    
+  while (field) {
+    TSMLoc tmp;
+
+    if (!deflate && !gzip) {
+      int value_count = TSMimeHdrFieldValuesCount(reqp, hdr_loc, field);
+
+      while (value_count > 0) {
+        int val_len = 0;
+        const char *val;
+
+        --value_count;
+        val = TSMimeHdrFieldValueStringGet(reqp, hdr_loc, field, value_count, &val_len);
+
+        if (val_len == (int) strlen("gzip"))
+          gzip = !strncmp(val, "gzip", val_len);
+        else if (val_len == (int) strlen("deflate"))
+          deflate = !strncmp(val, "deflate", val_len);
+      }
+    }
+
+    tmp = TSMimeHdrFieldNextDup(reqp, hdr_loc, field);
+    TSMimeHdrFieldDestroy(reqp, hdr_loc, field);        //catch retval?
+    TSHandleMLocRelease(reqp, hdr_loc, field);
+    field = tmp;
+  }
+
+  //append a new accept-encoding field in the header
+  if (deflate || gzip) {
+    TSMimeHdrFieldCreate(reqp, hdr_loc, &field);
+    TSMimeHdrFieldNameSet(reqp, hdr_loc, field, TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING);
+
+    if (gzip) {
+      TSMimeHdrFieldValueStringInsert(reqp, hdr_loc, field, -1, "gzip", strlen("gzip"));
+      info("normalized accept encoding to gzip");
+    } else if (deflate) {
+      TSMimeHdrFieldValueStringInsert(reqp, hdr_loc, field, -1, "deflate", strlen("deflate"));
+      info("normalized accept encoding to deflate");
+    }
+
+    TSMimeHdrFieldAppend(reqp, hdr_loc, field);
+    TSHandleMLocRelease(reqp, hdr_loc, field);
+  }
+}
+
+void
+hide_accept_encoding(TSHttpTxn /* txnp ATS_UNUSED */, TSMBuffer reqp, TSMLoc hdr_loc, const char * hidden_header_name)
+{
+  TSMLoc field = TSMimeHdrFieldFind(reqp, hdr_loc, TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING);
+  while (field) {
+    TSMLoc tmp;
+    tmp = TSMimeHdrFieldNextDup(reqp, hdr_loc, field);
+    TSMimeHdrFieldNameSet(reqp, hdr_loc, field, hidden_header_name, -1);
+    TSHandleMLocRelease(reqp, hdr_loc, field);
+    field = tmp;
+  }
+}
+
+void
+restore_accept_encoding(TSHttpTxn /* txnp ATS_UNUSED */, TSMBuffer reqp, TSMLoc hdr_loc, const char * hidden_header_name)
+{
+  TSMLoc field = TSMimeHdrFieldFind(reqp, hdr_loc, hidden_header_name, -1);
+
+  while (field) {
+    TSMLoc tmp;
+    tmp = TSMimeHdrFieldNextDup(reqp, hdr_loc, field);
+    TSMimeHdrFieldNameSet(reqp, hdr_loc, field, TS_MIME_FIELD_ACCEPT_ENCODING, TS_MIME_LEN_ACCEPT_ENCODING);
+    TSHandleMLocRelease(reqp, hdr_loc, field);
+    field = tmp;
+  }
+}
+
+const char *
+init_hidden_header_name()
+{
+  char * hidden_header_name;
+  const char *var_name = "proxy.config.proxy_name";
+  TSMgmtString result;
+
+  if (TSMgmtStringGet(var_name, &result) != TS_SUCCESS) {
+    fatal("failed to get server name");
+  } else {
+    int hidden_header_name_len = strlen("x-accept-encoding-") + strlen(result);
+    hidden_header_name = (char *) TSmalloc(hidden_header_name_len + 1);
+    hidden_header_name[hidden_header_name_len] = 0;
+    sprintf(hidden_header_name, "x-accept-encoding-%s", result);
+  }
+  return hidden_header_name;
+}
+
+int
+register_plugin()
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = (char*)"gzip";
+  info.vendor_name = (char*)"Apache Software Foundation";
+  info.support_email = (char*)"dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    return 0;
+  }
+  return 1;
+}
+
+const char *
+load_dictionary(const char *preload_file)
+{
+  char *dict = (char *) malloc(800000);
+  uLong dictId = adler32(0L, Z_NULL, 0);
+  uLong *adler = &dictId;
+
+  FILE *fp;
+  int i = 0;
+
+  fp = fopen(preload_file, "r");
+  if (!fp) {
+    fatal("gzip-transform: ERROR: Unable to open dict file %s", preload_file);
+  }
+
+  /* dict = (char *) calloc(8000, sizeof(char)); */
+
+  i = 0;
+  while (!feof(fp)) {
+    if (fscanf(fp, "%s\n", dict + i) == 1) {
+      i = strlen(dict);
+      strcat(dict + i, " ");
+      ++i;
+    }
+  }
+  dict[i - 1] = '\0';
+
+  /* TODO get the adler compute right */
+  *adler = adler32(*adler, (const Byte *) dict, sizeof(dict));
+  return dict;
+}
+
+void
+gzip_log_ratio(int64_t in, int64_t out)
+{
+  if (in) {
+    info("Compressed size %" PRId64" (bytes), Original size %" PRId64", ratio: %f", out, in, ((float) (in - out) / in));
+  } else {
+    debug("Compressed size %" PRId64" (bytes), Original size %" PRId64", ratio: %f", out, in, 0.0F);
+  }
+}
diff --git a/plugins/gzip/misc.h b/plugins/gzip/misc.h
new file mode 100644
index 00000000..aa2ae16f
--- /dev/null
+++ b/plugins/gzip/misc.h
@@ -0,0 +1,81 @@
+/** @file
+
+  Transforms content using gzip or deflate
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _GZIP_MISC_H_
+#define _GZIP_MISC_H_
+
+#include <zlib.h>
+#include <ts/ts.h>
+#include <stdlib.h>             //exit()
+#include <stdio.h>
+
+//zlib stuff, see [deflateInit2] at http://www.zlib.net/manual.html
+static const int ZLIB_MEMLEVEL = 9;     //min=1 (optimize for memory),max=9 (optimized for speed)
+static const int WINDOW_BITS_DEFLATE = -15;
+static const int WINDOW_BITS_GZIP = 31;
+
+//misc
+static const int COMPRESSION_TYPE_DEFLATE = 1;
+static const int COMPRESSION_TYPE_GZIP = 2;
+//this one is just for txnargset/get to point to
+static const int GZIP_ONE = 1;
+static const int DICT_PATH_MAX = 512;
+static const int DICT_ENTRY_MAX = 2048;
+
+//this one is used to rename the accept encoding header
+//it will be restored later on
+//to make it work, the name must be different then downstream proxies though
+//otherwise the downstream will restore the accept encoding header
+
+enum transform_state
+{
+  transform_state_initialized,
+  transform_state_output,
+  transform_state_finished
+};
+
+typedef struct
+{
+  TSHttpTxn txn;
+  TSVIO downstream_vio;
+  TSIOBuffer downstream_buffer;
+  TSIOBufferReader downstream_reader;
+  int downstream_length;
+  z_stream zstrm;
+  enum transform_state state;
+  int compression_type;
+} GzipData;
+
+
+voidpf gzip_alloc(voidpf opaque, uInt items, uInt size);
+void gzip_free(voidpf opaque, voidpf address);
+void normalize_accept_encoding(TSHttpTxn txnp, TSMBuffer reqp, TSMLoc hdr_loc);
+void hide_accept_encoding(TSHttpTxn txnp, TSMBuffer reqp, TSMLoc hdr_loc, const char * hidden_header_name);
+void restore_accept_encoding(TSHttpTxn txnp, TSMBuffer reqp, TSMLoc hdr_loc, const char * hidden_header_name);
+const char * init_hidden_header_name();
+int check_ts_version();
+int register_plugin();
+const char *load_dictionary(const char *preload_file);
+void gzip_log_ratio(int64_t in, int64_t out);
+
+#endif
diff --git a/plugins/gzip/sample.gzip.config b/plugins/gzip/sample.gzip.config
new file mode 100644
index 00000000..2dd34ae8
--- /dev/null
+++ b/plugins/gzip/sample.gzip.config
@@ -0,0 +1,57 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+######################################################################
+#flags and options are:
+#
+# enable-gzip: default true, set true/false to enable/disable plugin for specific host
+#
+# remove-accept-encoding: this sets if the plugin should hide the accept encoding from origin servers
+# - to ease the load on the origins
+# - for when the proxy parses responses, and the resulting compression/decompression
+#   is wastefull
+#
+# cache: when set, the plugin stores the uncompressed and compressed response as alternates
+#
+# compressible-content-type: wildcard pattern for matching compressible content types
+#
+# disallow: wildcard pattern for disablign compression on urls
+######################################################################
+
+#first, we configure the default/global plugin behaviour
+enabled true
+remove-accept-encoding true
+cache false
+
+compressible-content-type text/*
+compressible-content-type *javascript*
+disallow /notthis/*.js
+disallow /notthat*
+disallow */bla*
+
+#override the global configuration for a host. 
+#www.foo.nl does NOT inherit anything
+[www.foo.nl]
+enabled true
+remove-accept-encoding true
+compressible-content-type text/*
+#disable a content type
+compressible-content-type !text/javascript
+
+cache false
+disallow /notthis/*.js
+disallow /notthat*
diff --git a/plugins/header_rewrite/Examples/Force-close b/plugins/header_rewrite/Examples/Force-close
new file mode 100644
index 00000000..79c30ed6
--- /dev/null
+++ b/plugins/header_rewrite/Examples/Force-close
@@ -0,0 +1,21 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cond %{SEND_RESPONSE_HDR_HOOK}
+cond %{ACCESS:/url/local/www/html/status.html}    [NOT,OR]
+cond %{RANDOM:1000} =42
+add-header Connection "close"
diff --git a/plugins/header_rewrite/Examples/Regression b/plugins/header_rewrite/Examples/Regression
new file mode 100644
index 00000000..dc1c0f80
--- /dev/null
+++ b/plugins/header_rewrite/Examples/Regression
@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cond %{STATUS} =201
+set-status 999
+set-status-reason "YDoDed again ..."
+
+cond %{READ_REQUEST_HDR_HOOK}
+rm-header Set-Cookie
+rm-header WWW-Authenticate
+rm-header Connection
+add-header Connection "close"
+
+cond %{RANDOM:10} =4
+set-status 789
+
+cond %{ACCESS:/tmp/foobar} [NOT]
+set-status 666
diff --git a/plugins/header_rewrite/Examples/YCS-EC b/plugins/header_rewrite/Examples/YCS-EC
new file mode 100644
index 00000000..80b67033
--- /dev/null
+++ b/plugins/header_rewrite/Examples/YCS-EC
@@ -0,0 +1,36 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# The default hook is INK_HTTP_READ_RESPONSE_HDR_HOOK, so need to specify that
+# Remove any cookie/authentication headers from the origin server response
+rm-header Set-Cookie
+rm-header WWW-Authenticate
+
+# This technically violates RFC 2616, but allows us to calculate proper age / freshness
+# in YTS, even when the origin (*caugh* wikimedia) shows odd Date and Age responses.
+rm-header Date
+rm-header Age
+
+# If the origin responds with an HTTP status in the 400 range, normalize to a 404
+cond %{STATUS} >399 [AND]
+cond %{STATUS} <499
+set-status 404
+
+# Don't send these headers to the Origin server
+cond %{SEND_REQUEST_HDR_HOOK}
+rm-header Cache-Control
+rm-header Pragma
diff --git a/plugins/header_rewrite/Makefile.am b/plugins/header_rewrite/Makefile.am
new file mode 100644
index 00000000..4ba08758
--- /dev/null
+++ b/plugins/header_rewrite/Makefile.am
@@ -0,0 +1,42 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+if BUILD_HAVE_BOOST
+
+AM_CPPFLAGS += $(BOOST_CPPFLAGS)
+
+pkglib_LTLIBRARIES = header_rewrite.la
+header_rewrite_la_SOURCES = \
+  condition.cc \
+  conditions.cc \
+  expander.cc \
+  factory.cc \
+  header_rewrite.cc \
+  lulu.cc \
+  matcher.cc \
+  operator.cc \
+  operators.cc \
+  parser.cc \
+  regex_helper.cc \
+  resources.cc \
+  ruleset.cc \
+  statement.cc
+
+header_rewrite_la_LDFLAGS = $(BOOST_LDFLAGS) $(TS_PLUGIN_LDFLAGS)
+
+endif
diff --git a/plugins/header_rewrite/Makefile.in b/plugins/header_rewrite/Makefile.in
new file mode 100644
index 00000000..b17eae67
--- /dev/null
+++ b/plugins/header_rewrite/Makefile.in
@@ -0,0 +1,976 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp README \
+	TODO
+@BUILD_HAVE_BOOST_TRUE@am__append_1 = $(BOOST_CPPFLAGS)
+subdir = plugins/header_rewrite
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+header_rewrite_la_LIBADD =
+am__header_rewrite_la_SOURCES_DIST = condition.cc conditions.cc \
+	expander.cc factory.cc header_rewrite.cc lulu.cc matcher.cc \
+	operator.cc operators.cc parser.cc regex_helper.cc \
+	resources.cc ruleset.cc statement.cc
+@BUILD_HAVE_BOOST_TRUE@am_header_rewrite_la_OBJECTS = condition.lo \
+@BUILD_HAVE_BOOST_TRUE@	conditions.lo expander.lo factory.lo \
+@BUILD_HAVE_BOOST_TRUE@	header_rewrite.lo lulu.lo matcher.lo \
+@BUILD_HAVE_BOOST_TRUE@	operator.lo operators.lo parser.lo \
+@BUILD_HAVE_BOOST_TRUE@	regex_helper.lo resources.lo ruleset.lo \
+@BUILD_HAVE_BOOST_TRUE@	statement.lo
+header_rewrite_la_OBJECTS = $(am_header_rewrite_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+header_rewrite_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(header_rewrite_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+@BUILD_HAVE_BOOST_TRUE@am_header_rewrite_la_rpath = -rpath \
+@BUILD_HAVE_BOOST_TRUE@	$(pkglibdir)
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(header_rewrite_la_SOURCES)
+DIST_SOURCES = $(am__header_rewrite_la_SOURCES_DIST)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+pkgdatadir = @pkgdatadir@
+pkglibdir = $(pkglibexecdir)
+pkglibexecdir = @pkglibexecdir@
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_CFLAGS = @AM_CFLAGS@
+AM_CXXFLAGS = @AM_CXXFLAGS@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+API_DEFS = @API_DEFS@
+AR = @AR@
+ASCPP = @ASCPP@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BOOST_CPPFLAGS = @BOOST_CPPFLAGS@
+BOOST_LDFLAGS = @BOOST_LDFLAGS@
+CC = @CC@
+CCACHE = @CCACHE@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CURL_CFLAGS = @CURL_CFLAGS@
+CURL_CONFIG = @CURL_CONFIG@
+CURL_LIBS = @CURL_LIBS@
+CURSES_LIB = @CURSES_LIB@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+EXPAT_LDFLAGS = @EXPAT_LDFLAGS@
+EXTRA_CC_LDFLAGS = @EXTRA_CC_LDFLAGS@
+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
+FGREP = @FGREP@
+FLEX_CFLAGS = @FLEX_CFLAGS@
+GEOIP_LIBS = @GEOIP_LIBS@
+GREP = @GREP@
+HOST_GUESS = @HOST_GUESS@
+HWLOC_CFLAGS = @HWLOC_CFLAGS@
+HWLOC_LIBS = @HWLOC_LIBS@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
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+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
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+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
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+host_alias = @host_alias@
+host_cpu = @host_cpu@
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+ink_with_modules_local = @ink_with_modules_local@
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+iocore_include_dirs = @iocore_include_dirs@
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+lzmah = @lzmah@
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+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
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+netdbh = @netdbh@
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+netinet_tcph = @netinet_tcph@
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+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS) $(am__append_1)
+@BUILD_HAVE_BOOST_TRUE@pkglib_LTLIBRARIES = header_rewrite.la
+@BUILD_HAVE_BOOST_TRUE@header_rewrite_la_SOURCES = \
+@BUILD_HAVE_BOOST_TRUE@  condition.cc \
+@BUILD_HAVE_BOOST_TRUE@  conditions.cc \
+@BUILD_HAVE_BOOST_TRUE@  expander.cc \
+@BUILD_HAVE_BOOST_TRUE@  factory.cc \
+@BUILD_HAVE_BOOST_TRUE@  header_rewrite.cc \
+@BUILD_HAVE_BOOST_TRUE@  lulu.cc \
+@BUILD_HAVE_BOOST_TRUE@  matcher.cc \
+@BUILD_HAVE_BOOST_TRUE@  operator.cc \
+@BUILD_HAVE_BOOST_TRUE@  operators.cc \
+@BUILD_HAVE_BOOST_TRUE@  parser.cc \
+@BUILD_HAVE_BOOST_TRUE@  regex_helper.cc \
+@BUILD_HAVE_BOOST_TRUE@  resources.cc \
+@BUILD_HAVE_BOOST_TRUE@  ruleset.cc \
+@BUILD_HAVE_BOOST_TRUE@  statement.cc
+
+@BUILD_HAVE_BOOST_TRUE@header_rewrite_la_LDFLAGS = $(BOOST_LDFLAGS) $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/header_rewrite/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/header_rewrite/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+header_rewrite.la: $(header_rewrite_la_OBJECTS) $(header_rewrite_la_DEPENDENCIES) $(EXTRA_header_rewrite_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(header_rewrite_la_LINK) $(am_header_rewrite_la_rpath) $(header_rewrite_la_OBJECTS) $(header_rewrite_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/condition.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/conditions.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/expander.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/factory.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/header_rewrite.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/lulu.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/matcher.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/operator.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/operators.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parser.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/regex_helper.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/resources.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ruleset.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/statement.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/header_rewrite/README b/plugins/header_rewrite/README
new file mode 100644
index 00000000..40ea1746
--- /dev/null
+++ b/plugins/header_rewrite/README
@@ -0,0 +1,27 @@
+Apache Traffic Server Rewrite Header Plugin
+This is a plugin for ATS (Apache Traffic Server), that allows you to
+perform various header "rewrite" rules (operations) on a request or
+response. It is loosely modeled after Apache HTTPD's mod_rewrite.
+
+
+Using the plugin
+----------------
+
+This plugin can be used as both a global plugin, enabled in plugin.config:
+
+  header_rewrite.so config_file_1.conf config_file_2.conf ...
+
+These are global rules, which would apply to all requests. Another option is
+to use per remap rules in remap.config
+
+  map http://a http://b @plugin=header_rewrite.so @pparam=rules1.conf ...
+
+
+In the second example, hooks which are not to be executed during the remap
+phase (the default) causes a transaction hook to be instantiated and used
+at a later time. This allows you to setup e.g. a rule that gets executed
+during the origin response header parsing, using READ_RESPONSE_HDR_HOOK.
+
+For more information on how to use this plugin, please see
+
+  http://docs.trafficserver.apache.org/en/latest/reference/plugins/header_rewrite.en.html
diff --git a/plugins/header_rewrite/TODO b/plugins/header_rewrite/TODO
new file mode 100644
index 00000000..d71e1d4c
--- /dev/null
+++ b/plugins/header_rewrite/TODO
@@ -0,0 +1,29 @@
+* Add a new base class for extracting values (extractor)
+* Implement extractors for various values
+* Make the statement base class virtual inherited
+* In conditions / values, we can get the value by using the << or >> operator
+* Mark which conditions and operators work in what hooks
+* Better debugging on conditions.
+* Add descriptions to conditions and operators.
+* Support configurable timeouts
+* Support "super-conditions", or nested conditions (if (A) if (b) else if (c) )
+
+
+Conditions to add
+
+%{REQUEST-HEADER:<hdr>}
+%{RESPONSE-HEADER:<hdr>}
+
+%{CLIENT-URL}
+%{CLIENT-URL:HOST}
+%{CLIENT-URL:PORT}
+%{CLIENT-URL:PATH}
+%{CLIENT-URL:QUERY}
+%{CLIENT-URL:PARAMS}
+
+%{SERVER-URL}
+%{SERVER-URL:HOST}
+%{SERVER-URL:PORT}
+%{SERVER-URL:PATH}
+%{SERVER-URL:QUERY}
+%{SERVER-URL:PARAMS}
diff --git a/plugins/header_rewrite/condition.cc b/plugins/header_rewrite/condition.cc
new file mode 100644
index 00000000..e215dbf4
--- /dev/null
+++ b/plugins/header_rewrite/condition.cc
@@ -0,0 +1,81 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// condition.cc: Implementation of the condition base class
+//
+//
+#include <string>
+
+#include "ts/ts.h"
+
+#include "condition.h"
+
+
+static MatcherOps
+parse_matcher_op(std::string& arg)
+{
+  switch (arg[0]) {
+  case '=':
+    arg.erase(0, 1);
+    return MATCH_EQUAL;
+    break;
+  case '<':
+    arg.erase(0, 1);
+    return MATCH_LESS_THEN;
+    break;
+  case '>':
+    arg.erase(0, 1);
+    return MATCH_GREATER_THEN;
+    break;
+  case '/':
+    arg.erase(0, 1);
+    arg.erase(arg.length() - 1, arg.length());
+    return MATCH_REGULAR_EXPRESSION;
+    break;
+  default:
+    return MATCH_EQUAL;
+    break;
+  }
+}
+
+
+void
+Condition::initialize(Parser& p)
+{
+  Statement::initialize(p);
+
+  if (p.mod_exist("OR")) {
+    if (p.mod_exist("AND")) {
+      TSError("%s: Can't have both AND and OR in mods", PLUGIN_NAME);
+    } else {
+      _mods = static_cast<CondModifiers>(_mods | COND_OR);
+    }
+  } else if (p.mod_exist("AND")) {
+    _mods = static_cast<CondModifiers>(_mods | COND_AND);
+  }
+
+  if (p.mod_exist("NOT")) {
+    _mods = static_cast<CondModifiers>(_mods | COND_NOT);
+  }
+
+  if (p.mod_exist("L")) {
+    _mods = static_cast<CondModifiers>(_mods | COND_LAST);
+  }
+
+  _cond_op = parse_matcher_op(p.get_arg());
+}
diff --git a/plugins/header_rewrite/condition.h b/plugins/header_rewrite/condition.h
new file mode 100644
index 00000000..933ea097
--- /dev/null
+++ b/plugins/header_rewrite/condition.h
@@ -0,0 +1,116 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __CONDITION_H__
+#define __CONDITION_H__ 1
+
+#include <string>
+
+#include "ts/ts.h"
+
+#include "resources.h"
+#include "statement.h"
+#include "matcher.h"
+#include "parser.h"
+
+
+// Condition modifiers
+enum CondModifiers {
+  COND_NONE = 0,
+  COND_OR = 1,
+  COND_AND = 2,
+  COND_NOT = 4,
+  COND_NOCASE = 8, // Not implemented
+  COND_LAST = 16,
+  COND_CHAIN = 32  // Not implemented
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Base class for all Conditions (this is also the interface)
+//
+class Condition : public Statement
+{
+public:
+  Condition()
+    : _qualifier(""), _cond_op(MATCH_EQUAL), _matcher(NULL), _mods(COND_NONE)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Condition");
+  }
+
+  // Inline this, it's critical for speed (and only used twice)
+  bool do_eval(const Resources& res)
+  {
+    bool rt = eval(res);
+
+    if (_mods & COND_NOT)
+      rt = !rt;
+
+    if (_next) {
+      if (_mods & COND_OR) {
+        return rt || (static_cast<Condition*>(_next)->do_eval(res));
+      } else { // AND is the default
+        // Short circuit if we're an AND and the first condition is FALSE.
+        if (rt)
+          return static_cast<Condition*>(_next)->do_eval(res);
+        else
+          return false;
+      }
+    } else {
+      return rt;
+    }
+
+    return false; // Shouldn't happen.
+  }
+
+  bool last() const {
+    return _mods & COND_LAST;
+  }
+
+  // Setters
+  virtual void set_qualifier(const std::string& q) { _qualifier = q; }
+
+  // Some getters
+  const Matcher* get_matcher() const { return _matcher; }
+  const MatcherOps get_cond_op() const { return _cond_op; }
+  const std::string get_qualifier() const { return _qualifier; }
+
+  // Virtual methods, has to be implemented by each conditional;
+  virtual void initialize(Parser& p);
+  virtual void append_value(std::string& s, const Resources& res) = 0;
+
+protected:
+  // Evaluate the condition
+  virtual bool eval(const Resources& res) = 0;
+
+  std::string _qualifier;
+  MatcherOps _cond_op;
+  Matcher* _matcher;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(Condition);
+
+  CondModifiers _mods;
+};
+
+
+#endif // __CONDITION_H
+
diff --git a/plugins/header_rewrite/conditions.cc b/plugins/header_rewrite/conditions.cc
new file mode 100644
index 00000000..6bc97fa2
--- /dev/null
+++ b/plugins/header_rewrite/conditions.cc
@@ -0,0 +1,488 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// conditions.cc: Implementation of the condition classes
+//
+//
+#include <sys/time.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+
+#include "ts/ts.h"
+
+#include "conditions.h"
+#include "lulu.h"
+
+// ConditionStatus
+void
+ConditionStatus::initialize(Parser& p)
+{
+  Condition::initialize(p);
+
+  Matchers<TSHttpStatus>* match = new Matchers<TSHttpStatus>(_cond_op);
+
+  match->set(static_cast<TSHttpStatus>(strtol(p.get_arg().c_str(), NULL, 10)));
+  _matcher = match;
+
+  require_resources(RSRC_SERVER_RESPONSE_HEADERS);
+  require_resources(RSRC_CLIENT_RESPONSE_HEADERS);
+  require_resources(RSRC_RESPONSE_STATUS);
+}
+
+
+void
+ConditionStatus::initialize_hooks()
+{
+  add_allowed_hook(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+  add_allowed_hook(TS_HTTP_SEND_RESPONSE_HDR_HOOK);
+}
+
+
+bool
+ConditionStatus::eval(const Resources& res)
+{
+  TSDebug(PLUGIN_NAME, "Evaluating STATUS()"); // TODO: It'd be nice to get the args here ...
+  return static_cast<const Matchers<TSHttpStatus>*>(_matcher)->test(res.resp_status);
+}
+
+
+void
+ConditionStatus::append_value(std::string& s, const Resources& res)
+{
+  s += boost::lexical_cast<std::string>(res.resp_status);
+  TSDebug(PLUGIN_NAME, "Appending STATUS(%d) to evaluation value -> %s", res.resp_status, s.c_str());
+}
+
+
+// ConditionRandom: random 0 to (N-1)
+void
+ConditionRandom::initialize(Parser& p)
+{
+  struct timeval tv;
+
+  Condition::initialize(p);
+
+  gettimeofday(&tv, NULL);
+
+  Matchers<unsigned int>* match = new Matchers<unsigned int>(_cond_op);
+  _seed = getpid()* tv.tv_usec;
+  _max = strtol(_qualifier.c_str(), NULL, 10);
+
+  match->set(static_cast<unsigned int>(strtol(p.get_arg().c_str(), NULL, 10)));
+  _matcher = match;
+}
+
+
+bool
+ConditionRandom::eval(const Resources& /* res ATS_UNUSED */)
+{
+  TSDebug(PLUGIN_NAME, "Evaluating RANDOM(%d)", _max);
+  return static_cast<const Matchers<unsigned int>*>(_matcher)->test(rand_r(&_seed) % _max);
+}
+
+
+void
+ConditionRandom::append_value(std::string& s, const Resources& /* res ATS_UNUSED */)
+{
+  s += boost::lexical_cast<std::string>(rand_r(&_seed) % _max);
+  TSDebug(PLUGIN_NAME, "Appending RANDOM(%d) to evaluation value -> %s", _max, s.c_str());
+}
+
+
+// ConditionAccess: access(file)
+void
+ConditionAccess::initialize(Parser& p)
+{
+  struct timeval tv;
+
+  Condition::initialize(p);
+
+  gettimeofday(&tv, NULL);
+
+  _next = tv.tv_sec + 2;
+  _last = !access(_qualifier.c_str(), R_OK);
+}
+
+
+void
+ConditionAccess::append_value(std::string& s, const Resources& res)
+{
+  if (eval(res)) {
+    s += "OK";
+  } else {
+    s += "NOT OK";
+  }
+}
+
+
+bool
+ConditionAccess::eval(const Resources& /* res ATS_UNUSED */)
+{
+  struct timeval tv;
+
+  gettimeofday(&tv, NULL);
+
+  TSDebug(PLUGIN_NAME, "Evaluating ACCESS(%s)", _qualifier.c_str());
+  if (tv.tv_sec > _next) {
+    // There is a small "race" here, where we could end up calling access() a few times extra. I think
+    // that is OK, and not worth protecting with a lock.
+    bool check = !access(_qualifier.c_str(), R_OK);
+
+    tv.tv_sec += 2;
+    mb();
+    _next = tv.tv_sec; // I hope this is an atomic "set"...
+    _last = check; // This sure ought to be
+  }
+
+  return _last;
+}
+
+
+// ConditionHeader: request or response header
+void
+ConditionHeader::initialize(Parser& p)
+{
+  Condition::initialize(p);
+
+  Matchers<std::string>* match = new Matchers<std::string>(_cond_op);
+  match->set(p.get_arg());
+
+  _matcher = match;
+
+  require_resources(RSRC_CLIENT_REQUEST_HEADERS);
+  require_resources(RSRC_CLIENT_RESPONSE_HEADERS);
+  require_resources(RSRC_SERVER_REQUEST_HEADERS);
+  require_resources(RSRC_SERVER_RESPONSE_HEADERS);
+}
+
+
+void
+ConditionHeader::append_value(std::string& s, const Resources& res)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMLoc field_loc;
+  const char* value;
+  int len;
+
+  if (_client) {
+    bufp = res.client_bufp;
+    hdr_loc = res.client_hdr_loc;
+  } else {
+    bufp = res.bufp;
+    hdr_loc = res.hdr_loc;
+  }
+
+  if (bufp && hdr_loc) {
+    field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, _qualifier.c_str(), _qualifier.size());
+    TSDebug(PLUGIN_NAME, "Getting Header: %s, field_loc: %p", _qualifier.c_str(), field_loc);
+    if (field_loc != NULL) {
+      value = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, -1, &len);
+      TSDebug(PLUGIN_NAME, "Appending HEADER(%s) to evaluation value -> %.*s", _qualifier.c_str(), len, value);
+      s.append(value, len);
+      TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+    }
+  }
+}
+
+
+bool
+ConditionHeader::eval(const Resources& res)
+{
+  std::string s;
+
+  append_value(s, res);
+  bool rval = static_cast<const Matchers<std::string>*>(_matcher)->test(s);
+  TSDebug(PLUGIN_NAME, "Evaluating HEADER(): %s - rval: %d", s.c_str(), rval);
+  return rval;
+}
+
+// ConditionPath
+void
+ConditionPath::initialize(Parser& p)
+{
+  Condition::initialize(p);
+
+  Matchers<std::string>* match = new Matchers<std::string>(_cond_op);
+  match->set(p.get_arg());
+
+  _matcher = match;
+}
+
+void ConditionPath::append_value(std::string& s, const Resources& res) {
+  TSMBuffer bufp;
+  TSMLoc url_loc;
+
+  if (TSHttpTxnPristineUrlGet(res.txnp, &bufp, &url_loc) == TS_SUCCESS) {
+    int path_length;
+    const char *path = TSUrlPathGet(bufp, url_loc, &path_length);
+
+    if (path && path_length)
+      s.append(path, path_length);
+
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, url_loc);
+  }
+}
+
+bool
+ConditionPath::eval(const Resources& res)
+{
+  std::string s;
+
+  append_value(s, res);
+  TSDebug(PLUGIN_NAME, "Evaluating PATH");
+
+  return static_cast<const Matchers<std::string>*>(_matcher)->test(s);
+}
+
+// ConditionQuery
+void
+ConditionQuery::initialize(Parser& p)
+{
+  Condition::initialize(p);
+
+  Matchers<std::string>* match = new Matchers<std::string>(_cond_op);
+  match->set(p.get_arg());
+  _matcher = match;
+
+}
+
+void
+ConditionQuery::append_value(std::string& s, const Resources& res)
+{
+  int query_len = 0;
+  const char *query = TSUrlHttpQueryGet(res._rri->requestBufp, res._rri->requestUrl, &query_len);
+  TSDebug(PLUGIN_NAME, "Appending QUERY to evaluation value: %.*s", query_len, query);
+  s.append(query, query_len);
+}
+
+bool
+ConditionQuery::eval(const Resources& res)
+{
+  std::string s;
+
+  if (NULL == res._rri) {
+    TSDebug(PLUGIN_NAME, "QUERY requires remap initialization! Evaluating to false!");
+    return false;
+  }
+  append_value(s, res);
+  TSDebug(PLUGIN_NAME, "Evaluating QUERY - %s", s.c_str());
+  return static_cast<const Matchers<std::string>*>(_matcher)->test(s);
+}
+
+
+// ConditionUrl: request or response header. TODO: This is not finished, at all!!!
+void
+ConditionUrl::initialize(Parser& /* p ATS_UNUSED */)
+{
+}
+
+
+void
+ConditionUrl::set_qualifier(const std::string& q)
+{
+  Condition::set_qualifier(q);
+
+  _url_qual = parse_url_qualifier(q);
+}
+
+
+void
+ConditionUrl::append_value(std::string& /* s ATS_UNUSED */, const Resources& /* res ATS_UNUSED */)
+{
+}
+
+
+bool
+ConditionUrl::eval(const Resources& /* res ATS_UNUSED */)
+{
+  bool ret = false;
+
+  return ret;
+}
+
+
+// ConditionDBM: do a lookup against a DBM
+void
+ConditionDBM::initialize(Parser& p)
+{
+  Condition::initialize(p);
+
+  Matchers<std::string>* match = new Matchers<std::string>(_cond_op);
+  match->set(p.get_arg());
+  _matcher = match;
+
+  std::string::size_type pos = _qualifier.find_first_of(',');
+
+  if (pos != std::string::npos) {
+    _file = _qualifier.substr(0, pos);
+    //_dbm = mdbm_open(_file.c_str(), O_RDONLY, 0, 0, 0);
+    // if (NULL != _dbm) {
+    //   TSDebug(PLUGIN_NAME, "Opened DBM file %s\n", _file.c_str());
+    //   _key.set_value(_qualifier.substr(pos + 1));
+    // } else {
+    //   TSError("Failed to open DBM file: %s", _file.c_str());
+    // }
+  } else {
+    TSError("%s: Malformed DBM condition", PLUGIN_NAME);
+  }
+}
+
+
+void
+ConditionDBM::append_value(std::string& /* s ATS_UNUSED */, const Resources& /* res ATS_UNUSED */)
+{
+  // std::string key;
+
+  // if (!_dbm)
+  //   return;
+
+  // _key.append_value(key, res);
+  // if (key.size() > 0) {
+  //   datum k, v;
+
+  //   TSDebug(PLUGIN_NAME, "Looking up DBM(\"%s\")", key.c_str());
+  //   k.dptr = const_cast<char*>(key.c_str());
+  //   k.dsize = key.size();
+
+  //   TSMutexLock(_mutex);
+  //   //v = mdbm_fetch(_dbm, k);
+  //   TSMutexUnlock(_mutex);
+  //   if (v.dsize > 0) {
+  //     TSDebug(PLUGIN_NAME, "Appending DBM(%.*s) to evaluation value -> %.*s", k.dsize, k.dptr, v.dsize, v.dptr);
+  //     s.append(v.dptr, v.dsize);
+  //   }
+  // }
+}
+
+
+bool
+ConditionDBM::eval(const Resources& res)
+{
+  std::string s;
+
+  append_value(s, res);
+  TSDebug(PLUGIN_NAME, "Evaluating DBM(%s, \"%s\")", _file.c_str(), s.c_str());
+
+  return static_cast<const Matchers<std::string>*>(_matcher)->test(s);
+}
+
+
+// ConditionCookie: request or response header
+void
+ConditionCookie::initialize(Parser& p)
+{
+  Condition::initialize(p);
+
+  Matchers<std::string>* match = new Matchers<std::string>(_cond_op);
+  match->set(p.get_arg());
+
+  _matcher = match;
+
+  require_resources(RSRC_CLIENT_REQUEST_HEADERS);
+}
+
+void
+ConditionCookie::append_value(std::string& s, const Resources& res)
+{
+  TSMBuffer bufp = res.client_bufp;
+  TSMLoc hdr_loc = res.client_hdr_loc;
+  TSMLoc field_loc;
+  int error;
+  int cookies_len;
+  int cookie_value_len;
+  const char *cookies;
+  const char *cookie_value;
+  const char * const cookie_name = _qualifier.c_str();
+  const int cookie_name_len = _qualifier.length();
+
+  // Sanity
+  if (bufp == NULL || hdr_loc == NULL)
+    return;
+
+  // Find Cookie
+  field_loc = TSMimeHdrFieldFind(bufp, hdr_loc, TS_MIME_FIELD_COOKIE, TS_MIME_LEN_COOKIE);
+  if (field_loc == NULL)
+    return;
+
+  // Get all cookies
+  cookies = TSMimeHdrFieldValueStringGet(bufp, hdr_loc, field_loc, -1, &cookies_len);
+  if (cookies == NULL || cookies_len <= 0)
+    goto out_release_field;
+
+  // Find particular cookie's value
+  error = get_cookie_value(cookies, cookies_len, cookie_name, cookie_name_len, &cookie_value, &cookie_value_len);
+  if (error == TS_ERROR)
+    goto out_release_field;
+
+  TSDebug(PLUGIN_NAME, "Appending COOKIE(%s) to evaluation value -> %.*s", cookie_name, cookie_value_len, cookie_value);
+  s.append(cookie_value, cookie_value_len);
+
+  // Unwind
+out_release_field:
+  TSHandleMLocRelease(bufp, hdr_loc, field_loc);
+}
+
+bool
+ConditionCookie::eval(const Resources& res)
+{
+  std::string s;
+
+  append_value(s, res);
+  bool rval = static_cast<const Matchers<std::string>*>(_matcher)->test(s);
+  TSDebug(PLUGIN_NAME, "Evaluating COOKIE(%s): %s: rval: %d", _qualifier.c_str(), s.c_str(), rval);
+  return rval;
+}
+
+bool
+ConditionInternalTransaction::eval(const Resources& res)
+{
+  return TSHttpIsInternalRequest(res.txnp) == TS_SUCCESS;
+}
+
+void
+ConditionClientIp::initialize(Parser &p)
+{
+  Condition::initialize(p);
+
+  Matchers<std::string>* match = new Matchers<std::string>(_cond_op);
+  match->set(p.get_arg());
+
+  _matcher = match;
+}
+
+bool
+ConditionClientIp::eval(const Resources &res)
+{
+  std::string s;
+
+  append_value(s, res);
+  bool rval = static_cast<const Matchers<std::string>*>(_matcher)->test(s);
+  TSDebug(PLUGIN_NAME, "Evaluating CLIENT-IP(): %s: rval: %d", s.c_str(), rval);
+  return rval;
+}
+
+void
+ConditionClientIp::append_value(std::string &s, const Resources &res)
+{
+  char ip[INET6_ADDRSTRLEN];
+
+  if (getIP(TSHttpTxnClientAddrGet(res.txnp), ip)) {
+    s.append(ip);
+  }
+}
diff --git a/plugins/header_rewrite/conditions.h b/plugins/header_rewrite/conditions.h
new file mode 100644
index 00000000..55e01068
--- /dev/null
+++ b/plugins/header_rewrite/conditions.h
@@ -0,0 +1,352 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Declarations for all conditionals / conditional values we support.
+//
+#ifndef __CONDITIONS_H__
+#define __CONDITIONS_H__ 1
+
+#include <string>
+#include <boost/lexical_cast.hpp>
+#include <cstring>
+
+#include "ts/ts.h"
+
+#include "condition.h"
+#include "matcher.h"
+#include "value.h"
+#include "lulu.h"
+//#include <mdbm.h>
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Condition declarations.
+//
+
+// Always true
+class ConditionTrue : public Condition
+{
+public:
+  ConditionTrue()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionTrue");
+  }
+
+  void append_value(std::string& s, const Resources& /* res ATS_UNUSED */) { s += "TRUE";  }
+
+protected:
+  bool eval(const Resources& /* res ATS_UNUSED */) {
+    TSDebug(PLUGIN_NAME, "Evaluating TRUE()");
+    return true;
+  }
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionTrue);
+};
+
+
+// Always false
+class ConditionFalse : public Condition
+{
+public:
+  ConditionFalse()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionFalse");
+  }
+  void append_value(std::string& s, const Resources& /* res ATS_UNUSED */) { s += "FALSE"; }
+
+protected:
+  bool eval(const Resources& /* res ATS_UNUSED */) {
+    TSDebug(PLUGIN_NAME, "Evaluating FALSE()");
+    return false;
+  }
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionFalse);
+};
+
+
+// Check the HTTP return status
+class ConditionStatus : public Condition
+{
+public:
+  ConditionStatus()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionStatus");
+  }
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+  void initialize_hooks(); // Return status only valid in certain hooks
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionStatus);
+};
+
+
+// Random 0 to (N-1)
+class ConditionRandom : public Condition
+{
+public:
+  ConditionRandom()
+    : _seed(0), _max(0)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionRandom");
+  }
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionRandom);
+
+  unsigned int _seed;
+  unsigned int _max;
+};
+
+
+// access(file)
+class ConditionAccess : public Condition
+{
+public:
+  ConditionAccess()
+    : _next(0), _last(false)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionAccess");
+  }
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionAccess);
+
+  time_t _next;
+  bool _last;
+};
+
+
+// cookie(name)
+class ConditionCookie: public Condition
+{
+public:
+  ConditionCookie()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionCookie");
+  }
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionCookie);
+
+  // Nginx-style cookie parsing:
+  //   nginx/src/http/ngx_http_parse.c:ngx_http_parse_multi_header_lines()
+  inline int
+  get_cookie_value(const char *buf, int buf_len, const char *name, int name_len,
+        const char **value, int *value_len)
+  {
+    const char *start, *last, *end;
+
+    // Sanity
+    if (buf == NULL || name == NULL || value == NULL || value_len == NULL)
+      return TS_ERROR;
+
+    start = buf;
+    end = buf + buf_len;
+
+    while (start < end) {
+      if (strncasecmp(start, name, name_len) != 0)
+        goto skip;
+
+      for (start += name_len; start < end && *start == ' '; start++);
+
+      if (start == end || *start++ != '=')
+        goto skip;
+
+      while (start < end && *start == ' ') { start++; }
+      for (last = start; last < end && *last != ';'; last++);
+
+      *value_len = last - start;
+      *value = start;
+      return TS_SUCCESS;
+skip:
+      while (start < end) {
+        char ch = *start++;
+        if (ch == ';' || ch == ',')
+          break;
+      }
+      while (start < end && *start == ' ') { start++; }
+    }
+    return TS_ERROR;
+  };
+};
+
+// header
+class ConditionHeader : public Condition
+{
+public:
+  explicit ConditionHeader(bool client = false)
+    : _client(client)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionHeader, client %d", client);
+  };
+
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionHeader);
+
+  bool _client;
+};
+
+// path
+class ConditionPath : public Condition
+{
+public:
+  explicit ConditionPath()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionPath");
+  };
+
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionPath);
+};
+
+
+// query
+class ConditionQuery : public Condition
+{
+public:
+  explicit ConditionQuery()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionQuery");
+  };
+
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionQuery);
+
+};
+
+
+// url
+class ConditionUrl : public Condition
+{
+public:
+  explicit ConditionUrl(bool client = false)
+    : _url_qual(URL_QUAL_NONE), _client(client)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionUrl");
+  };
+
+  void initialize(Parser& p);
+  void set_qualifier(const std::string& q);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionUrl);
+
+  UrlQualifiers _url_qual;
+  bool _client;
+};
+
+
+// DBM lookups
+class ConditionDBM : public Condition
+{
+public:
+  ConditionDBM()
+    :
+    //_dbm(NULL),
+      _file("")
+  {
+    _mutex = TSMutexCreate();
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for ConditionDBM");
+  }
+
+  ~ConditionDBM() {
+    // if (_dbm) {
+    //   mdbm_close(_dbm);
+    //   _dbm = NULL;
+    // }
+  }
+
+  void initialize(Parser& p);
+  void append_value(std::string& s, const Resources& res);
+
+protected:
+  bool eval(const Resources& res);
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(ConditionDBM);
+
+  //MDBM* _dbm;
+  std::string _file;
+  Value _key;
+  TSMutex _mutex;
+};
+
+class ConditionInternalTransaction : public Condition
+{
+public:
+  void append_value(std::string &/* s ATS_UNUSED */, const Resources &/* res ATS_UNUSED */) { }
+
+protected:
+  bool eval(const Resources &res);
+};
+
+class ConditionClientIp : public Condition
+{
+public:
+  void initialize(Parser& p);
+  void append_value(std::string &s, const Resources &res);
+
+protected:
+  bool eval(const Resources &res);
+};
+
+#endif // __CONDITIONS_H
diff --git a/plugins/header_rewrite/expander.cc b/plugins/header_rewrite/expander.cc
new file mode 100644
index 00000000..7ab69a7f
--- /dev/null
+++ b/plugins/header_rewrite/expander.cc
@@ -0,0 +1,117 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+// expander.cc: Implementation of the Variable Expander base class
+//
+#include "ts/ts.h"
+
+#include <string>
+#include <sstream>
+
+#include "lulu.h"
+#include "statement.h"
+#include "parser.h"
+#include "expander.h"
+
+// Main expander method
+std::string
+VariableExpander::expand(const Resources& res)
+{
+  std::string result;
+
+  result.reserve(512); // TODO: Can be optimized
+  result.assign(_source);
+
+  while (true) {
+    std::string::size_type start = result.find("%<");
+    if (start == std::string::npos)
+      break;
+
+    std::string::size_type end = result.find(">", start);
+    if (end == std::string::npos)
+      break;
+
+    std::string first_part = result.substr(0, start);
+    std::string last_part = result.substr(end + 1);
+
+    // Now evaluate the variable
+    std::string variable = result.substr(start, end - start + 1);
+
+    // This will be the value to replace the "variable" section of the string with
+    std::string resolved_variable = "";
+
+    // Initialize some stuff
+    TSMBuffer bufp;
+    TSMLoc hdr_loc;
+    TSMLoc url_loc;
+
+    if (variable == "%<proto>") {
+      // Protocol of the incoming request
+      if (TSHttpTxnPristineUrlGet(res.txnp, &bufp, &url_loc) == TS_SUCCESS) {
+        int len;
+        resolved_variable = TSUrlSchemeGet(bufp, url_loc, &len);
+      }
+    } else if (variable == "%<port>") {
+      // Original port of the incoming request
+      if (TSHttpTxnClientReqGet(res.txnp, &bufp, &hdr_loc) == TS_SUCCESS) {
+        if (TSHttpHdrUrlGet(bufp, hdr_loc, &url_loc) == TS_SUCCESS) {
+          std::stringstream out;
+          out << TSUrlPortGet(bufp, url_loc);
+          resolved_variable = out.str();
+          TSHandleMLocRelease(bufp, hdr_loc, url_loc);
+        }
+        TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+      }
+    } else if (variable == "%<chi>") {
+      // IP address of the client's host machine
+      resolved_variable = getIP(TSHttpTxnClientAddrGet(res.txnp));
+    } else if (variable == "%<cqhl>") {
+      // The client request header length; the header length in the client request to Traffic Server.
+      std::stringstream out;
+      out << TSHttpHdrLengthGet(res.client_bufp, res.client_hdr_loc);
+      resolved_variable = out.str();
+    } else if (variable == "%<cqhm>") {
+      // The HTTP method in the client request to Traffic Server: GET, POST, and so on (subset of cqtx).
+      int method_len;
+      const char *methodp = TSHttpHdrMethodGet(res.client_bufp, res.client_hdr_loc, &method_len);
+      if (methodp && method_len) {
+        resolved_variable.assign(methodp, method_len);
+      }
+    } else if (variable == "%<cquup>") {
+      // The client request unmapped URL path. This field records a URL path
+      // before it is remapped (reverse proxy mode).
+      if (TSHttpTxnPristineUrlGet(res.txnp, &bufp, &url_loc) == TS_SUCCESS) {
+        int path_len;
+        const char *path = TSUrlPathGet(bufp, url_loc, &path_len);
+
+        if (path && path_len) {
+          resolved_variable.assign(path, path_len);
+        }
+        TSHandleMLocRelease(bufp, TS_NULL_MLOC, url_loc);
+      }
+    }
+
+    // TODO(SaveTheRbtz): Can be optimized
+    result.assign(first_part);
+    result.append(resolved_variable);
+    result.append(last_part);
+  }
+
+  return result;
+}
diff --git a/plugins/header_rewrite/expander.h b/plugins/header_rewrite/expander.h
new file mode 100644
index 00000000..50c0a87c
--- /dev/null
+++ b/plugins/header_rewrite/expander.h
@@ -0,0 +1,43 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+// Public interface for the Variable Expander
+//
+#ifndef __EXPANDER_H__
+#define __EXPANDER_H__ 1
+
+#include <string>
+
+#include "ts/ts.h"
+#include "resources.h"
+
+class VariableExpander {
+public:
+  VariableExpander(const std::string &source)
+    : _source(source)
+  { }
+
+  std::string expand(const Resources& res);
+
+private:
+  std::string _source;
+};
+
+
+#endif // __EXPANDER_H
diff --git a/plugins/header_rewrite/factory.cc b/plugins/header_rewrite/factory.cc
new file mode 100644
index 00000000..b9e2fa8d
--- /dev/null
+++ b/plugins/header_rewrite/factory.cc
@@ -0,0 +1,123 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// factory.cc: Factory functions for operators, conditions and condition variables.
+//
+//
+#include <string>
+
+#include "operators.h"
+#include "conditions.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// "Factory" functions, processing the parsed lines
+//
+Operator*
+operator_factory(const std::string& op)
+{
+  Operator* o = NULL;
+
+  if (op == "rm-header") {
+    o = new OperatorRMHeader();
+  } else if (op == "set-header") {
+    o = new OperatorSetHeader();
+  } else if (op == "add-header") {
+    o = new OperatorAddHeader();
+  } else if (op == "set-config") {
+    o = new OperatorSetConfig();
+  } else if (op == "set-status") {
+    o = new OperatorSetStatus();
+  } else if (op == "set-status-reason") {
+    o = new OperatorSetStatusReason();
+  } else if (op == "set-destination") {
+    o = new OperatorSetDestination();
+  } else if (op == "set-redirect") {
+    o = new OperatorSetRedirect();
+  } else if (op == "timeout-out") {
+    o = new OperatorSetTimeoutOut();
+  } else if (op == "skip-remap") {
+    o = new OperatorSkipRemap();
+  } else if (op == "no-op") {
+    o = new OperatorNoOp();
+  } else if (op == "counter") {
+    o = new OperatorCounter();
+  } else {
+    TSError("%s: unknown operator: %s", PLUGIN_NAME, op.c_str());
+    return NULL;
+  }
+
+  return o;
+}
+
+
+Condition*
+condition_factory(const std::string& cond)
+{
+  Condition* c = NULL;
+  std::string c_name, c_qual;
+  std::string::size_type pos = cond.find_first_of(':');
+
+  if (pos != std::string::npos) {
+    c_name = cond.substr(0, pos);
+    c_qual = cond.substr(pos + 1);
+  } else {
+    c_name = cond;
+    c_qual = "";
+  }
+
+  if (c_name == "TRUE") {
+    c = new ConditionTrue();
+  } else if (c_name == "FALSE") {
+    c = new ConditionFalse();
+  } else if (c_name == "STATUS") {
+    c = new ConditionStatus();
+  } else if (c_name == "RANDOM") {
+    c = new ConditionRandom();
+  } else if (c_name == "ACCESS") {
+    c = new ConditionAccess();
+  } else if (c_name == "COOKIE") {
+    c = new ConditionCookie();
+  } else if (c_name == "HEADER") { // This condition adapts to the hook
+    c = new ConditionHeader();
+  } else if (c_name == "PATH") {
+    c = new ConditionPath();
+  } else if (c_name == "CLIENT-HEADER") {
+    c = new ConditionHeader(true);
+  } else if (c_name == "QUERY") {
+    c = new ConditionQuery();
+  } else if (c_name == "URL") { // This condition adapts to the hook
+    c = new ConditionUrl();
+  } else if (c_name == "CLIENT-URL") {
+    c = new ConditionUrl(true);
+  } else if (c_name == "DBM") {
+    c = new ConditionDBM();
+  } else if (c_name == "INTERNAL-TRANSACTION") {
+    c = new ConditionInternalTransaction();
+  } else if (c_name == "CLIENT-IP") {
+    c = new ConditionClientIp();
+  } else {
+    TSError("%s: unknown condition: %s", PLUGIN_NAME, c_name.c_str());
+    return NULL;
+  }
+
+  if (c_qual != "")
+    c->set_qualifier(c_qual);
+
+  return c;
+}
diff --git a/plugins/header_rewrite/factory.h b/plugins/header_rewrite/factory.h
new file mode 100644
index 00000000..e2294493
--- /dev/null
+++ b/plugins/header_rewrite/factory.h
@@ -0,0 +1,34 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __FACTORY_H__
+#define __FACTORY_H__ 1
+
+#include <string>
+
+#include "operator.h"
+#include "condition.h"
+
+Operator* operator_factory(const std::string& op);
+Condition* condition_factory(const std::string& cond);
+
+
+#endif
diff --git a/plugins/header_rewrite/header_rewrite.cc b/plugins/header_rewrite/header_rewrite.cc
new file mode 100644
index 00000000..bb40398f
--- /dev/null
+++ b/plugins/header_rewrite/header_rewrite.cc
@@ -0,0 +1,446 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#include <fstream>
+#include <string>
+#include <boost/algorithm/string.hpp>
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+
+#include "parser.h"
+#include "ruleset.h"
+#include "resources.h"
+
+// Debugs
+const char PLUGIN_NAME[] = "header_rewrite";
+const char PLUGIN_NAME_DBG[] = "dbg_header_rewrite";
+
+const char* HOOK_NAMES[] = {
+  "TS_HTTP_READ_REQUEST_HDR_HOOK",
+  "TS_HTTP_OS_DNS_HOOK",
+  "TS_HTTP_SEND_REQUEST_HDR_HOOK",
+  "TS_HTTP_READ_CACHE_HDR_HOOK",
+  "TS_HTTP_READ_RESPONSE_HDR_HOOK",
+  "TS_HTTP_SEND_RESPONSE_HDR_HOOK",
+  "TS_HTTP_REQUEST_TRANSFORM_HOOK",
+  "TS_HTTP_RESPONSE_TRANSFORM_HOOK",
+  "TS_HTTP_SELECT_ALT_HOOK",
+  "TS_HTTP_TXN_START_HOOK",
+  "TS_HTTP_TXN_CLOSE_HOOK",
+  "TS_HTTP_SSN_START_HOOK",
+  "TS_HTTP_SSN_CLOSE_HOOK",
+  "TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK",
+  "TS_HTTP_PRE_REMAP_HOOK",
+  "TS_HTTP_POST_REMAP_HOOK",
+  "TS_HTTP_RESPONSE_CLIENT_HOOK",
+  "TS_HTTP_LAST_HOOK"
+};
+
+
+// Forward declaration for the main continuation.
+static int cont_rewrite_headers(TSCont, TSEvent, void *);
+
+
+// Simple wrapper around a configuration file / set. This is useful such that
+// we can reuse most of the code for both global and per-remap rule sets.
+class RulesConfig
+{
+public:
+  RulesConfig()
+  {
+    memset(_rules, 0, sizeof(_rules));
+    memset(_resids, 0, sizeof(_resids));
+
+    _cont = TSContCreate(cont_rewrite_headers, NULL);
+    TSContDataSet(_cont, static_cast<void*>(this));
+  }
+
+  ~RulesConfig()
+  {
+    for (int i=TS_HTTP_READ_REQUEST_HDR_HOOK; i<TS_HTTP_LAST_HOOK; ++i) {
+      delete _rules[i];
+    }
+
+    TSContDestroy(_cont);
+  }
+
+  TSCont continuation() const { return _cont; }
+
+  ResourceIDs resid(int hook) const { return _resids[hook]; }
+  RuleSet* rule(int hook) const { return _rules[hook]; }
+
+  bool parse_config(const std::string fname, TSHttpHookID default_hook);
+
+private:
+  bool add_rule(RuleSet* rule);
+
+  TSCont _cont;
+  RuleSet* _rules[TS_HTTP_LAST_HOOK+1];
+  ResourceIDs _resids[TS_HTTP_LAST_HOOK+1];
+};
+
+// Helper function to add a rule to the rulesets
+bool
+RulesConfig::add_rule(RuleSet* rule)
+{
+  if (rule && rule->has_operator()) {
+    TSDebug(PLUGIN_NAME_DBG, "   Adding rule to hook=%s\n", HOOK_NAMES[rule->get_hook()]);
+    if (NULL == _rules[rule->get_hook()]) {
+      _rules[rule->get_hook()] = rule;
+    } else {
+      _rules[rule->get_hook()]->append(rule);
+    }
+    return true;
+  }
+
+  return false;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Config parser, use to parse both the global, and per-remap, configurations.
+//
+// Note that this isn't particularly efficient, but it's a startup time cost
+// anyways (or reload for remap.config), so not really in the critical path.
+//
+bool
+RulesConfig::parse_config(const std::string fname, TSHttpHookID default_hook)
+{
+  RuleSet* rule = NULL;
+  std::string filename;
+  std::ifstream f;
+  int lineno = 0;
+
+  if (0 == fname.size()) {
+    TSError("%s: no config filename provided", PLUGIN_NAME);
+    return false;
+
+  }
+
+  if (fname[0] != '/') {
+    filename = TSConfigDirGet();
+    filename += "/" + fname;
+  } else {
+    filename = fname;
+  }
+
+  f.open(filename.c_str(), std::ios::in);
+  if (!f.is_open()) {
+    TSError("%s: unable to open %s", PLUGIN_NAME, filename.c_str());
+    return false;
+  }
+
+  while (!f.eof()) {
+    std::string line;
+
+    getline(f, line);
+    ++lineno; // ToDo: we should probably use this for error messages ...
+    TSDebug(PLUGIN_NAME_DBG, "Reading line: %d: %s", lineno, line.c_str());
+
+    boost::trim(line);
+    if (line.empty() || (line[0] == '#')) {
+      continue;
+    }
+
+    Parser p(line);  // Tokenize and parse this line
+    if (p.empty()) {
+      continue;
+    }
+
+    // If we are at the beginning of a new condition, save away the previous rule (but only if it has operators).
+    if (p.is_cond() && add_rule(rule)) {
+      rule = NULL;
+    }
+
+    if (NULL == rule) {
+      rule = new RuleSet();
+      rule->set_hook(default_hook);
+
+      // Special case for specifying the HOOK this rule applies to.
+      // These can only be at the beginning of a rule, and have an implicit [AND].
+      if (p.cond_op_is("READ_RESPONSE_HDR_HOOK")) {
+        rule->set_hook(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+        continue;
+      } else if (p.cond_op_is("READ_REQUEST_HDR_HOOK")) {
+        rule->set_hook(TS_HTTP_READ_REQUEST_HDR_HOOK);
+        continue;
+      } else if (p.cond_op_is("READ_REQUEST_PRE_REMAP_HOOK")) {
+        rule->set_hook(TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK);
+        continue;
+      } else if (p.cond_op_is("SEND_REQUEST_HDR_HOOK")) {
+        rule->set_hook(TS_HTTP_SEND_REQUEST_HDR_HOOK);
+        continue;
+      } else if (p.cond_op_is("SEND_RESPONSE_HDR_HOOK")) {
+        rule->set_hook(TS_HTTP_SEND_RESPONSE_HDR_HOOK);
+        continue;
+      } else if (p.cond_op_is("REMAP_PSEUDO_HOOK")) {
+        rule->set_hook(TS_REMAP_PSEUDO_HOOK);
+        continue;
+      }
+    }
+
+    if (p.is_cond()) {
+      rule->add_condition(p);
+    } else {
+      rule->add_operator(p);
+    }
+  }
+
+  // Add the last rule (possibly the only rule)
+  add_rule(rule);
+
+  // Collect all resource IDs that we need
+  for (int i=TS_HTTP_READ_REQUEST_HDR_HOOK; i<TS_HTTP_LAST_HOOK; ++i) {
+    if (_rules[i]) {
+      _resids[i] = _rules[i]->get_all_resource_ids();
+    }
+  }
+
+  return true;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Continuation
+//
+static int
+cont_rewrite_headers(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = static_cast<TSHttpTxn>(edata);
+  TSHttpHookID hook = TS_HTTP_LAST_HOOK;
+  RulesConfig* conf = static_cast<RulesConfig*>(TSContDataGet(contp));
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    hook = TS_HTTP_READ_RESPONSE_HDR_HOOK;
+    break;
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    hook = TS_HTTP_READ_REQUEST_HDR_HOOK;
+    break;
+  case TS_EVENT_HTTP_READ_REQUEST_PRE_REMAP:
+    hook = TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK;
+    break;
+  case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+    hook = TS_HTTP_SEND_REQUEST_HDR_HOOK;
+    break;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    hook = TS_HTTP_SEND_RESPONSE_HDR_HOOK;
+    break;
+  default:
+    TSError("%s: unknown event for this plugin", PLUGIN_NAME);
+    TSDebug(PLUGIN_NAME, "unknown event for this plugin");
+    break;
+  }
+
+  if (hook != TS_HTTP_LAST_HOOK) {
+    const RuleSet* rule = conf->rule(hook);
+    Resources res(txnp, contp);
+
+    // Get the resources necessary to process this event
+    res.gather(conf->resid(hook), hook);
+
+    // Evaluation of all rules. This code is sort of duplicate in DoRemap as well.
+    while (rule) {
+      if (rule->eval(res)) {
+        OperModifiers rt = rule->exec(res);
+
+        if (rule->last() || (rt & OPER_LAST)) {
+          break; // Conditional break, force a break with [L]
+        }
+      }
+      rule = rule->next;
+    }
+  }
+
+  TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  return 0;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the InkAPI plugin for the global hooks we support.
+//
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = (char*)PLUGIN_NAME;
+  info.vendor_name = (char*)"Apache Software Foundation";
+  info.support_email = (char*)"dev@trafficserver.apache.org";
+
+  if (TS_SUCCESS != TSPluginRegister(TS_SDK_VERSION_3_0 , &info)) {
+    TSError("%s: plugin registration failed.\n", PLUGIN_NAME);
+  }
+
+  // Parse the global config file(s). All rules are just appended
+  // to the "global" Rules configuration.
+  RulesConfig* conf = new RulesConfig;
+  bool got_config = false;
+
+  for (int i=1; i < argc; ++i) {
+    // Parse the config file(s). Note that multiple config files are
+    // just appended to the configurations.
+    TSDebug(PLUGIN_NAME, "Loading global configuration file %s", argv[i]);
+    if (conf->parse_config(argv[i], TS_HTTP_READ_RESPONSE_HDR_HOOK)) {
+      TSDebug(PLUGIN_NAME, "Succesfully loaded global config file %s", argv[i]);
+      got_config = true;
+    } else {
+      TSError("header_rewrite: failed to parse configuration file %s", argv[i]);
+    }
+  }
+
+  if (got_config) {
+    TSCont contp = TSContCreate(cont_rewrite_headers, NULL);
+    TSContDataSet(contp, conf);
+
+    for (int i=TS_HTTP_READ_REQUEST_HDR_HOOK; i<TS_HTTP_LAST_HOOK; ++i) {
+      if (conf->rule(i)) {
+        TSDebug(PLUGIN_NAME, "Adding global ruleset to hook=%s", HOOK_NAMES[i]);
+        TSHttpHookAdd(static_cast<TSHttpHookID>(i), contp);
+      }
+    }
+  } else {
+    // Didn't get anything, nuke it.
+    TSError("%s: failed to parse configuration file", PLUGIN_NAME);
+    delete conf;
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin as a remap plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[TSRemapInit] - Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->size < sizeof(TSRemapInterface)) {
+    strncpy(errbuf, "[TSRemapInit] - Incorrect size of TSRemapInterface structure", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapInit] - Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  TSDebug(PLUGIN_NAME, "Remap plugin is successfully initialized");
+  return TS_SUCCESS;
+}
+
+
+TSReturnCode
+TSRemapNewInstance(int argc, char *argv[], void **ih, char * /* errbuf ATS_UNUSED */, int /* errbuf_size ATS_UNUSED */)
+{
+  TSDebug(PLUGIN_NAME, "Instantiating a new remap.config plugin rule");
+
+  if (argc < 3) {
+    TSError("%s: Unable to create remap instance, need config file", PLUGIN_NAME);
+    return TS_ERROR;
+  }
+
+  RulesConfig* conf = new RulesConfig;
+
+  for (int i=2; i < argc; ++i) {
+    TSDebug(PLUGIN_NAME, "Loading remap configuration file %s", argv[i]);
+    if (!conf->parse_config(argv[i], TS_REMAP_PSEUDO_HOOK)) {
+      TSError("%s: Unable to create remap instance", PLUGIN_NAME);
+      return TS_ERROR;
+    } else {
+      TSDebug(PLUGIN_NAME, "Succesfully loaded remap config file %s", argv[i]);
+    }
+  }
+
+  // For debugging only
+  if (TSIsDebugTagSet(PLUGIN_NAME)) {
+    for (int i=TS_HTTP_READ_REQUEST_HDR_HOOK; i<TS_HTTP_LAST_HOOK; ++i) {
+      if (conf->rule(i)) {
+        TSDebug(PLUGIN_NAME, "Adding remap ruleset to hook=%s", HOOK_NAMES[i]);
+      }
+    }
+  }
+
+  *ih = static_cast<void*>(conf);
+
+  return TS_SUCCESS;
+}
+
+void
+TSRemapDeleteInstance(void *ih)
+{
+  RulesConfig* conf = static_cast<RulesConfig*>(ih);
+
+  delete conf;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// This is the main "entry" point for the plugin, called for every request.
+//
+TSRemapStatus
+TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
+{
+  // Make sure things are properly setup (this should never happen)
+  if (NULL == ih) {
+    TSDebug(PLUGIN_NAME, "No Rules configured, falling back to default");
+    return TSREMAP_NO_REMAP;
+  }
+
+  TSRemapStatus rval = TSREMAP_NO_REMAP;
+  RulesConfig* conf = static_cast<RulesConfig*>(ih);
+
+  // Go through all hooks we support, and setup the txn hook(s) as necessary
+  for (int i=TS_HTTP_READ_REQUEST_HDR_HOOK; i<TS_HTTP_LAST_HOOK; ++i) {
+    if (conf->rule(i)) {
+      TSHttpTxnHookAdd(rh, static_cast<TSHttpHookID>(i), conf->continuation());
+      TSDebug(PLUGIN_NAME, "Added remapped TXN hook=%s", HOOK_NAMES[i]);
+    }
+  }
+
+  // Now handle the remap specific rules for the "remap hook" (which is not a real hook).
+  // This is sufficiently differen than the normal cont_rewrite_headers() callback, and
+  // we can't (shouldn't) schedule this as a TXN hook.
+  RuleSet* rule = conf->rule(TS_REMAP_PSEUDO_HOOK);
+  Resources res(rh, rri);
+
+  res.gather(RSRC_CLIENT_REQUEST_HEADERS, TS_REMAP_PSEUDO_HOOK);
+  while (rule) {
+    if (rule->eval(res)) {
+      OperModifiers rt = rule->exec(res);
+
+      if (res.changed_url == true) {
+        rval = TSREMAP_DID_REMAP;
+      }
+
+      if (rule->last() || (rt & OPER_LAST)) {
+        break; // Conditional break, force a break with [L]
+      }
+    }
+    rule = rule->next;
+  }
+
+  TSDebug(PLUGIN_NAME_DBG, "Returing from TSRemapDoRemap with status: %d", rval);
+  return rval;
+}
+
diff --git a/plugins/header_rewrite/lulu.cc b/plugins/header_rewrite/lulu.cc
new file mode 100644
index 00000000..9db1f567
--- /dev/null
+++ b/plugins/header_rewrite/lulu.cc
@@ -0,0 +1,63 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+#include <string>
+
+#include "ts/ts.h"
+#include "lulu.h"
+
+// Helper function to cleanly get the IP as a string.
+char*
+getIP(sockaddr const* s_sockaddr, char res[INET6_ADDRSTRLEN])
+{
+  res[0] = '\0';
+
+  if (s_sockaddr == NULL) {
+    return NULL;
+  }
+
+  switch (s_sockaddr->sa_family) {
+  case AF_INET:
+    {
+      const struct sockaddr_in *s_sockaddr_in = reinterpret_cast<const struct sockaddr_in *>(s_sockaddr);
+      inet_ntop(AF_INET, &s_sockaddr_in->sin_addr, res, INET_ADDRSTRLEN);
+    }
+    break;
+  case AF_INET6:
+    {
+      const struct sockaddr_in6 *s_sockaddr_in6 = reinterpret_cast<const struct sockaddr_in6 *>(s_sockaddr);
+      inet_ntop(AF_INET6, &s_sockaddr_in6->sin6_addr, res, INET6_ADDRSTRLEN);
+    }
+    break;
+  }
+
+  return res[0] ? res : NULL;
+}
+
+// Return it as a std::string instead (more expensive, but sometimes convenient)
+std::string
+getIP(sockaddr const* s_sockaddr)
+{
+  char res[INET6_ADDRSTRLEN] = { '\0' };
+
+  if (getIP(s_sockaddr, res)) {
+    return res;
+  }
+
+  return "";
+}
diff --git a/plugins/header_rewrite/lulu.h b/plugins/header_rewrite/lulu.h
new file mode 100644
index 00000000..df6226a8
--- /dev/null
+++ b/plugins/header_rewrite/lulu.h
@@ -0,0 +1,70 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __LULU_H__
+#define __LULU_H__ 1
+
+#include <string>
+
+#include "ink_defs.h"
+#include "ink_platform.h"
+
+std::string getIP(sockaddr const* s_sockaddr);
+char* getIP(sockaddr const* s_sockaddr, char res[INET6_ADDRSTRLEN]);
+
+
+// Memory barriers
+#if defined(__i386__)
+#define mb()  __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
+#define rmb() __asm__ __volatile__ ( "lock; addl $0,0(%%esp)" : : : "memory" )
+#define wmb() __asm__ __volatile__ ( "" : : : "memory")
+#elif defined(__x86_64__)
+#define mb()  __asm__ __volatile__ ( "mfence" : : : "memory")
+#define rmb() __asm__ __volatile__ ( "lfence" : : : "memory")
+#define wmb() __asm__ __volatile__ ( "" : : : "memory")
+#elif defined(__mips__)
+#define mb()  __asm__ __volatile__ ( "sync" : : : "memory")
+#define rmb() __asm__ __volatile__ ( "sync" : : : "memory")
+#define wmb() __asm__ __volatile__ ( "" : : : "memory")
+#elif defined(__arm__)
+#define mb()  __asm__ __volatile__ ( "dmb" : : : "memory")
+#define rmb() __asm__ __volatile__ ( "dmb" : : : "memory")
+#define wmb() __asm__ __volatile__ ( "" : : : "memory")
+#elif defined(__mips__)
+#define mb()  __asm__ __volatile__ ( "sync" : : : "memory")
+#define rmb() __asm__ __volatile__ ( "sync" : : : "memory")
+#define wmb() __asm__ __volatile__ ( "" : : : "memory")
+#else
+#error "Define barriers"
+#endif
+
+extern const char PLUGIN_NAME[];
+extern const char PLUGIN_NAME_DBG[];
+
+
+// From google styleguide: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
+#define DISALLOW_COPY_AND_ASSIGN(TypeName)      \
+  TypeName(const TypeName&);                    \
+  void operator=(const TypeName&)
+
+
+#endif // __LULU_H__
diff --git a/plugins/header_rewrite/matcher.cc b/plugins/header_rewrite/matcher.cc
new file mode 100644
index 00000000..3c1f9b8f
--- /dev/null
+++ b/plugins/header_rewrite/matcher.cc
@@ -0,0 +1,26 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// matcher.cc: Implementation of the condition classes
+//
+//
+#include <string>
+
+#include "ts/ts.h"
+
+#include "matcher.h"
diff --git a/plugins/header_rewrite/matcher.h b/plugins/header_rewrite/matcher.h
new file mode 100644
index 00000000..7eb90647
--- /dev/null
+++ b/plugins/header_rewrite/matcher.h
@@ -0,0 +1,171 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __MATCHER_H__
+#define __MATCHER_H__ 1
+
+#include <string>
+#include <iostream> // For debugging
+
+#include "ts/ts.h"
+
+#include "regex_helper.h"
+#include "lulu.h"
+
+
+// Possible operators that we support (at least partially)
+enum MatcherOps {
+  MATCH_EQUAL,
+  MATCH_LESS_THEN,
+  MATCH_GREATER_THEN,
+  MATCH_REGULAR_EXPRESSION
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Base class for all Matchers (this is also the interface)
+//
+class Matcher
+{
+public:
+  explicit Matcher(const MatcherOps op)
+    : _pdata(NULL), _op(op)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Matcher");
+  }
+
+  virtual ~Matcher()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling DTOR for Matcher");
+    free_pdata();
+  }
+
+  void set_pdata(void* pdata) { _pdata = pdata; }
+  void* get_pdata() const { return _pdata; }
+  virtual void free_pdata() { TSfree(_pdata); _pdata = NULL; }
+
+protected:
+  void* _pdata;
+  const MatcherOps _op;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(Matcher);
+};
+
+// Template class to match on various types of data
+template<class T>
+class Matchers : public Matcher
+{
+public:
+  explicit Matchers<T>(const MatcherOps op)
+  : Matcher(op)
+  { }
+
+  // Getters / setters
+  const T get() const { return _data; };
+
+  void setRegex(const std::string /* data ATS_UNUSED */)
+  {
+    if (!helper.setRegexMatch(_data)) {
+      std::cout<<"Invalid regex:failed to precompile"<<std::endl;
+      abort();
+    }
+    TSDebug(PLUGIN_NAME,"Regex precompiled successfully");
+  }
+
+  void setRegex(const unsigned int /* t ATS_UNUSED */) { return; }
+  void setRegex(const TSHttpStatus /* t ATS_UNUSED */) { return; }
+
+  void set (const T d)
+  {
+    _data = d;
+    if(_op == MATCH_REGULAR_EXPRESSION)
+      setRegex(d);
+  }
+
+  // Evaluate this matcher
+  bool
+  test(const T t) const {
+    switch (_op) {
+    case MATCH_EQUAL:
+      return test_eq(t);
+      break;
+    case MATCH_LESS_THEN:
+      return test_lt(t);
+      break;
+    case MATCH_GREATER_THEN:
+      return test_gt(t);
+      break;
+    case MATCH_REGULAR_EXPRESSION:
+      return test_reg(t);
+      break;
+    default:
+      // ToDo: error
+      break;
+    }
+    return false;
+  }
+
+private:
+  // For basic types
+  bool test_eq(const T t) const
+  {
+    // std::cout << "Testing: " << t << " == " << _data << std::endl;
+    return t == _data;
+  }
+  bool test_lt(const T t) const
+  {
+    // std::cout << "Testing: " << t << " < " << _data << std::endl;
+    return t < _data;
+  }
+  bool test_gt(const T t) const
+  {
+    // std::cout << "Testing: " << t << " > " << _data << std::endl;
+    return t > _data;
+  }
+
+  bool test_reg(const unsigned int /* t ATS_UNUSED */) const
+  {
+    // Not supported
+    return false;
+  }
+
+  bool test_reg(const TSHttpStatus /* t ATS_UNUSED */) const
+  {
+   // Not supported
+   return false;
+ }
+
+  bool test_reg(const std::string t) const
+  {
+      TSDebug(PLUGIN_NAME, "Test regular expression %s : %s", _data.c_str(), t.c_str());
+          int ovector[OVECCOUNT];
+          if (helper.regexMatch(t.c_str(), t.length(), ovector) > 0) {
+              TSDebug(PLUGIN_NAME, "Successfully found regular expression match");
+              return true;
+    }
+      return false;
+  }
+  T _data;
+  regexHelper helper;
+};
+
+#endif // __MATCHER_H
diff --git a/plugins/header_rewrite/operator.cc b/plugins/header_rewrite/operator.cc
new file mode 100644
index 00000000..6109a866
--- /dev/null
+++ b/plugins/header_rewrite/operator.cc
@@ -0,0 +1,61 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+// operator.cc: Implementation of the operator base class
+//
+//
+#include "ts/ts.h"
+#include "operator.h"
+
+const OperModifiers
+Operator::get_oper_modifiers() const
+{
+  if (_next)
+    return static_cast<OperModifiers>(_mods | static_cast<Operator*>(_next)->get_oper_modifiers());
+
+  return _mods;
+}
+
+void
+Operator::initialize(Parser& p)
+{
+  Statement::initialize(p);
+
+  if (p.mod_exist("L")) {
+    _mods = static_cast<OperModifiers>(_mods | OPER_LAST);
+  }
+
+  if (p.mod_exist("QSA")) {
+    _mods = static_cast<OperModifiers>(_mods | OPER_QSA);
+  }
+
+}
+
+void
+OperatorHeaders::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  _header = p.get_arg();
+
+  require_resources(RSRC_SERVER_RESPONSE_HEADERS);
+  require_resources(RSRC_SERVER_REQUEST_HEADERS);
+  require_resources(RSRC_CLIENT_REQUEST_HEADERS);
+  require_resources(RSRC_CLIENT_RESPONSE_HEADERS);
+}
diff --git a/plugins/header_rewrite/operator.h b/plugins/header_rewrite/operator.h
new file mode 100644
index 00000000..b365d44c
--- /dev/null
+++ b/plugins/header_rewrite/operator.h
@@ -0,0 +1,97 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// Public interface for creating all operators. Don't user the operator.h interface
+// directly!
+//
+#ifndef __OPERATOR_H__
+#define __OPERATOR_H__ 1
+
+#include <string>
+
+#include "ts/ts.h"
+
+#include "resources.h"
+#include "statement.h"
+#include "parser.h"
+
+
+// Operator modifiers
+enum OperModifiers {
+  OPER_NONE = 0,
+  OPER_LAST = 1,
+  OPER_NEXT = 2,
+  OPER_QSA = 4
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Base class for all Operators (this is also the interface)
+//
+class Operator : public Statement
+{
+public:
+  Operator()
+    : _mods(OPER_NONE)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Operator");
+  }
+
+  void do_exec(const Resources& res) const {
+    exec(res);
+    if (NULL != _next)
+      static_cast<Operator*>(_next)->do_exec(res);
+  }
+
+  const OperModifiers get_oper_modifiers() const;
+
+  virtual void initialize(Parser& p);
+
+protected:
+  virtual void exec(const Resources& res) const = 0;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(Operator);
+
+  OperModifiers _mods;
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Base class for all Header based Operators, this is obviously also an
+// Operator interface.
+//
+class OperatorHeaders : public Operator
+{
+public:
+  OperatorHeaders()
+    : _header("")
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorHeaders");
+  }
+
+  void initialize(Parser& p);
+
+protected:
+  std::string _header;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorHeaders);
+};
+
+#endif // __OPERATOR_H
diff --git a/plugins/header_rewrite/operators.cc b/plugins/header_rewrite/operators.cc
new file mode 100644
index 00000000..22165ffe
--- /dev/null
+++ b/plugins/header_rewrite/operators.cc
@@ -0,0 +1,545 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// operators.cc: implementation of the operator classes
+//
+//
+#include <arpa/inet.h>
+#include <string.h>
+
+#include "ts/ts.h"
+
+#include "operators.h"
+#include "expander.h"
+
+// OperatorConfig
+void
+OperatorSetConfig::initialize(Parser& p)
+{
+  Operator::initialize(p);
+  _config = p.get_arg();
+
+  if (TS_SUCCESS == TSHttpTxnConfigFind(_config.c_str(), _config.size(), &_key, &_type)) {
+    _value.set_value(p.get_value());
+  } else {
+    _key = TS_CONFIG_NULL;
+    TSError("%s: no such records config: %s", PLUGIN_NAME, _config.c_str());
+  }
+}
+
+
+void
+OperatorSetConfig::exec(const Resources& res) const
+{
+  if (TS_CONFIG_NULL != _key) {
+    switch (_type) {
+    case TS_RECORDDATATYPE_INT:
+      if (TS_SUCCESS == TSHttpTxnConfigIntSet(res.txnp, _key, _value.get_int_value())) {
+        TSDebug(PLUGIN_NAME, "OperatorSetConfig::exec() invoked on %s=%d", _config.c_str(), _value.get_int_value());
+      }
+      break;
+    case TS_RECORDDATATYPE_FLOAT:
+      if (TS_SUCCESS == TSHttpTxnConfigFloatSet(res.txnp, _key, _value.get_float_value())) {
+        TSDebug(PLUGIN_NAME, "OperatorSetConfig::exec() invoked on %s=%f", _config.c_str(), _value.get_float_value());
+      }
+      break;
+    case TS_RECORDDATATYPE_STRING:
+      if (TS_SUCCESS == TSHttpTxnConfigStringSet(res.txnp, _key, _value.get_value().c_str(), _value.size())) {
+        TSDebug(PLUGIN_NAME, "OperatorSetConfig::exec() invoked on %s=%s", _config.c_str(), _value.get_value().c_str());
+      }
+      break;
+    default:
+      TSError("%s: unknown data type, whut?", PLUGIN_NAME);
+      break;
+    }
+  }
+}
+
+
+// OperatorSetStatus
+void
+OperatorSetStatus::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  _status.set_value(p.get_arg());
+
+  if (NULL == (_reason = TSHttpHdrReasonLookup((TSHttpStatus)_status.get_int_value()))) {
+    TSError("%s: unknown status %d", PLUGIN_NAME, _status.get_int_value());
+    _reason_len = 0;
+  } else {
+    _reason_len = strlen(_reason);
+  }
+
+  require_resources(RSRC_SERVER_RESPONSE_HEADERS);
+  require_resources(RSRC_CLIENT_RESPONSE_HEADERS);
+  require_resources(RSRC_RESPONSE_STATUS);
+}
+
+
+void
+OperatorSetStatus::initialize_hooks()
+{
+  add_allowed_hook(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+  add_allowed_hook(TS_HTTP_SEND_RESPONSE_HDR_HOOK);
+}
+
+
+void
+OperatorSetStatus::exec(const Resources& res) const
+{
+  if (res.bufp && res.hdr_loc) {
+    TSHttpHdrStatusSet(res.bufp, res.hdr_loc, (TSHttpStatus)_status.get_int_value());
+    if (_reason && _reason_len > 0)
+      TSHttpHdrReasonSet(res.bufp, res.hdr_loc, _reason, _reason_len);
+  }
+}
+
+
+// OperatorSetStatusReason
+void
+OperatorSetStatusReason::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  _reason.set_value(p.get_arg());
+  require_resources(RSRC_CLIENT_RESPONSE_HEADERS);
+  require_resources(RSRC_SERVER_RESPONSE_HEADERS);
+}
+
+
+void
+OperatorSetStatusReason::initialize_hooks()
+{
+  add_allowed_hook(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+  add_allowed_hook(TS_HTTP_SEND_RESPONSE_HDR_HOOK);
+}
+
+void
+OperatorSetStatusReason::exec(const Resources& res) const
+{
+  if (res.bufp && res.hdr_loc) {
+    std::string reason;
+
+    _reason.append_value(reason, res);
+    if (reason.size() > 0) {
+      TSDebug(PLUGIN_NAME, "Setting Status Reason to %s", reason.c_str());
+      TSHttpHdrReasonSet(res.bufp, res.hdr_loc, reason.c_str(), reason.size());
+    }
+  }
+}
+
+
+// OperatorSetDestination
+void
+OperatorSetDestination::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  _url_qual = parse_url_qualifier(p.get_arg());
+  _value.set_value(p.get_value());
+  require_resources(RSRC_CLIENT_REQUEST_HEADERS);
+  require_resources(RSRC_SERVER_REQUEST_HEADERS);
+}
+
+
+void
+OperatorSetDestination::exec(const Resources& res) const
+{
+  if (res._rri || (res.bufp && res.hdr_loc)) {
+    std::string value;
+
+    // Determine which TSMBuffer and TSMLoc to use
+    TSMBuffer bufp;
+    TSMLoc url_m_loc;
+    if (res._rri) {
+      bufp = res._rri->requestBufp;
+      url_m_loc = res._rri->requestUrl;
+    } else {
+      bufp = res.bufp;
+      if (TSHttpHdrUrlGet(res.bufp, res.hdr_loc, &url_m_loc) != TS_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "TSHttpHdrUrlGet was unable to return the url m_loc");
+        return;
+      }
+    }
+
+    // Never set an empty destination value (I don't think that ever makes sense?)
+    switch (_url_qual) {
+
+    case URL_QUAL_HOST:
+      _value.append_value(value, res);
+      if (value.empty()) {
+        TSDebug(PLUGIN_NAME, "Would set destination HOST to an empty value, skipping");
+      } else {
+        const_cast<Resources&>(res).changed_url = true;
+        TSUrlHostSet(bufp, url_m_loc, value.c_str(), value.size());
+        TSDebug(PLUGIN_NAME, "OperatorSetDestination::exec() invoked with HOST: %s", value.c_str());
+      }
+      break;
+
+    case URL_QUAL_PATH:
+      _value.append_value(value, res);
+      if (value.empty()) {
+        TSDebug(PLUGIN_NAME, "Would set destination PATH to an empty value, skipping");
+      } else {
+        const_cast<Resources&>(res).changed_url = true;
+        TSUrlPathSet(bufp, url_m_loc, value.c_str(), value.size());
+        TSDebug(PLUGIN_NAME, "OperatorSetDestination::exec() invoked with PATH: %s", value.c_str());
+      }
+      break;
+
+    case URL_QUAL_QUERY:
+      _value.append_value(value, res);
+      if (value.empty()) {
+        TSDebug(PLUGIN_NAME, "Would set destination QUERY to an empty value, skipping");
+      } else {
+        //1.6.4--Support for preserving QSA in case of set-destination
+        if (get_oper_modifiers() & OPER_QSA) {
+          int query_len = 0;
+          const char* query = TSUrlHttpQueryGet(bufp, url_m_loc, &query_len);
+          TSDebug(PLUGIN_NAME, "QSA mode, append original query string: %.*s", query_len, query);
+          //std::string connector = (value.find("?") == std::string::npos)? "?" : "&";
+          value.append("&");
+          value.append(query, query_len);
+        }
+
+        const_cast<Resources&>(res).changed_url = true;
+        TSUrlHttpQuerySet(bufp, url_m_loc, value.c_str(), value.size());
+        TSDebug(PLUGIN_NAME, "OperatorSetDestination::exec() invoked with QUERY: %s", value.c_str());
+      }
+      break;
+
+    case URL_QUAL_PORT:
+      if (_value.get_int_value() <= 0 || _value.get_int_value() > 0xFFFF) {
+        TSDebug(PLUGIN_NAME, "Would set destination PORT to an invalid range, skipping");
+      } else {
+        const_cast<Resources&>(res).changed_url = true;
+        TSUrlPortSet(bufp, url_m_loc, _value.get_int_value());
+        TSDebug(PLUGIN_NAME, "OperatorSetDestination::exec() invoked with PORT: %d", _value.get_int_value());
+      }
+      break;
+    case URL_QUAL_URL:
+      // TODO: Implement URL parser.
+      break;
+    default:
+      break;
+    }
+  } else {
+    TSDebug(PLUGIN_NAME, "OperatorSetDestination::exec() unable to continue due to missing bufp=%p or hdr_loc=%p, rri=%p!", res.bufp, res.hdr_loc, res._rri);
+  }
+}
+
+
+/// TODO and XXX: These currently only support when running as remap plugin.
+// OperatorSetRedirect
+void
+OperatorSetRedirect::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  _status.set_value(p.get_arg());
+  _location.set_value(p.get_value());
+
+  if ((_status.get_int_value() != (int)TS_HTTP_STATUS_MOVED_PERMANENTLY) &&
+      (_status.get_int_value() != (int)TS_HTTP_STATUS_MOVED_TEMPORARILY)) {
+    TSError("%s: unsupported redirect status %d", PLUGIN_NAME, _status.get_int_value());
+  }
+
+  require_resources(RSRC_SERVER_RESPONSE_HEADERS);
+  require_resources(RSRC_CLIENT_RESPONSE_HEADERS);
+  require_resources(RSRC_RESPONSE_STATUS);
+}
+
+
+void
+OperatorSetRedirect::exec(const Resources& res) const
+{
+  if (res._rri) {
+    if (res.bufp && res.hdr_loc) {
+      std::string value;
+
+      _location.append_value(value, res);
+
+      // Replace %{PATH} to original path
+      size_t pos_path = 0;
+
+      if ((pos_path = value.find("%{PATH}")) != std::string::npos) {
+          value.erase(pos_path, 7); // erase %{PATH} from the rewritten to url
+          int path_len = 0;
+          const char *path = TSUrlPathGet(res._rri->requestBufp, res._rri->requestUrl, &path_len);
+          if (path_len > 0) {
+            TSDebug(PLUGIN_NAME, "Find %%{PATH} in redirect url, replace it with: %.*s", path_len, path);
+            value.insert(pos_path, path, path_len);
+          }
+      }
+
+      // Append the original query string
+      int query_len = 0;
+      const char *query = TSUrlHttpQueryGet(res._rri->requestBufp, res._rri->requestUrl, &query_len);
+      if ((get_oper_modifiers() & OPER_QSA) && (query_len > 0)) {
+          TSDebug(PLUGIN_NAME, "QSA mode, append original query string: %.*s", query_len, query);
+          std::string connector = (value.find("?") == std::string::npos)? "?" : "&";
+          value.append(connector);
+          value.append(query, query_len);
+      }
+
+      TSHttpTxnSetHttpRetStatus(res.txnp,(TSHttpStatus)_status.get_int_value());
+      const_cast<Resources&>(res).changed_url = true;
+      res._rri->redirect = 1;
+
+      //TSHttpHdrStatusSet(res.bufp, res.hdr_loc, (TSHttpStatus)_status.get_int_value());
+      const char *start = value.c_str();
+      const char *end = value.size() + start;
+      TSUrlParse(res._rri->requestBufp, res._rri->requestUrl, &start, end);
+      TSDebug(PLUGIN_NAME, "OperatorSetRedirect::exec() invoked with destination=%s and status code=%d",
+              value.c_str(), _status.get_int_value());
+    }
+
+  } else {
+    // TODO: Handle the non-remap case here (InkAPI hooks)
+  }
+}
+
+
+// OperatorSetTimeoutOut
+void
+OperatorSetTimeoutOut::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  if (p.get_arg() == "active") {
+    _type = TO_OUT_ACTIVE;
+  } else if (p.get_arg() == "inactive") {
+    _type = TO_OUT_INACTIVE;
+  } else if (p.get_arg() == "connect") {
+    _type = TO_OUT_CONNECT;
+  } else if (p.get_arg() == "dns") {
+    _type = TO_OUT_DNS;
+  } else {
+    _type = TO_OUT_UNDEFINED;
+    TSError("%s: unsupported timeout qualifier: %s", PLUGIN_NAME, p.get_arg().c_str());
+  }
+
+  _timeout.set_value(p.get_value());
+}
+
+
+void
+OperatorSetTimeoutOut::exec(const Resources& res) const
+{
+  switch (_type) {
+  case TO_OUT_ACTIVE:
+    TSDebug(PLUGIN_NAME, "OperatorSetTimeoutOut::exec(active, %d)", _timeout.get_int_value());
+    TSHttpTxnActiveTimeoutSet(res.txnp, _timeout.get_int_value());
+    break;
+
+  case TO_OUT_INACTIVE:
+    TSDebug(PLUGIN_NAME, "OperatorSetTimeoutOut::exec(inactive, %d)", _timeout.get_int_value());
+    TSHttpTxnNoActivityTimeoutSet(res.txnp, _timeout.get_int_value());
+    break;
+
+  case TO_OUT_CONNECT:
+    TSDebug(PLUGIN_NAME, "OperatorSetTimeoutOut::exec(connect, %d)", _timeout.get_int_value());
+    TSHttpTxnConnectTimeoutSet(res.txnp, _timeout.get_int_value());
+    break;
+
+  case TO_OUT_DNS:
+    TSDebug(PLUGIN_NAME, "OperatorSetTimeoutOut::exec(dns, %d)", _timeout.get_int_value());
+    TSHttpTxnDNSTimeoutSet(res.txnp, _timeout.get_int_value());
+    break;
+  default:
+    TSError("%s: unsupported timeout", PLUGIN_NAME);
+    break;
+  }
+}
+
+// OperatorSkipRemap
+void
+OperatorSkipRemap::initialize(Parser& p)
+{
+  Operator::initialize(p);
+
+  if (p.get_arg() == "1" || p.get_arg() == "true" || p.get_arg() == "TRUE") {
+    _skip_remap = true;
+  }
+}
+
+void
+OperatorSkipRemap::exec(const Resources& res) const
+{
+  TSDebug(PLUGIN_NAME, "OperatorSkipRemap::exec() skipping remap: %s", _skip_remap ? "True" : "False");
+  TSSkipRemappingSet(res.txnp, _skip_remap ? 1 : 0);
+}
+
+
+// OperatorRMHeader
+void
+OperatorRMHeader::exec(const Resources& res) const
+{
+  TSMLoc field_loc, tmp;
+
+  if (res.bufp && res.hdr_loc) {
+    TSDebug(PLUGIN_NAME, "OperatorRMHeader::exec() invoked on header %s", _header.c_str());
+    field_loc = TSMimeHdrFieldFind(res.bufp, res.hdr_loc, _header.c_str(), _header.size());
+    while (field_loc) {
+      TSDebug(PLUGIN_NAME, "   Deleting header %s", _header.c_str());
+      tmp = TSMimeHdrFieldNextDup(res.bufp, res.hdr_loc, field_loc);
+      TSMimeHdrFieldDestroy(res.bufp, res.hdr_loc, field_loc);
+      TSHandleMLocRelease(res.bufp, res.hdr_loc, field_loc);
+      field_loc = tmp;
+    }
+  }
+}
+
+
+// OperatorAddHeader
+void
+OperatorAddHeader::initialize(Parser& p)
+{
+  OperatorHeaders::initialize(p);
+
+  _value.set_value(p.get_value());
+}
+
+void
+OperatorAddHeader::exec(const Resources& res) const
+{
+  std::string value;
+
+  _value.append_value(value, res);
+
+  if (_value.need_expansion()) {
+    VariableExpander ve(value);
+
+    value = ve.expand(res);
+  }
+
+  // Never set an empty header (I don't think that ever makes sense?)
+  if (value.empty()) {
+    TSDebug(PLUGIN_NAME, "Would set header %s to an empty value, skipping", _header.c_str());
+    return;
+  }
+
+  if (res.bufp && res.hdr_loc) {
+    TSDebug(PLUGIN_NAME, "OperatorAddHeader::exec() invoked on header %s: %s", _header.c_str(), value.c_str());
+    TSMLoc field_loc;
+
+    if (TS_SUCCESS == TSMimeHdrFieldCreateNamed(res.bufp, res.hdr_loc, _header.c_str(), _header.size(), &field_loc)) {
+      if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(res.bufp, res.hdr_loc, field_loc, -1, value.c_str(), value.size())) {
+        TSDebug(PLUGIN_NAME, "   Adding header %s", _header.c_str());
+        TSMimeHdrFieldAppend(res.bufp, res.hdr_loc, field_loc);
+      }
+      TSHandleMLocRelease(res.bufp, res.hdr_loc, field_loc);
+    }
+  }
+}
+
+
+// OperatorSetHeader
+void
+OperatorSetHeader::initialize(Parser& p)
+{
+  OperatorHeaders::initialize(p);
+
+  _value.set_value(p.get_value());
+}
+
+void
+OperatorSetHeader::exec(const Resources& res) const
+{
+  std::string value;
+
+  _value.append_value(value, res);
+
+  // Never set an empty header (I don't think that ever makes sense?)
+  if (value.empty()) {
+    TSDebug(PLUGIN_NAME, "Would set header %s to an empty value, skipping", _header.c_str());
+    return;
+  }
+
+  if (res.bufp && res.hdr_loc) {
+    TSMLoc field_loc = TSMimeHdrFieldFind(res.bufp, res.hdr_loc, _header.c_str(), _header.size());
+
+    TSDebug(PLUGIN_NAME, "OperatorSetHeader::exec() invoked on header %s: %s", _header.c_str(), value.c_str());
+
+    if (!field_loc) {
+      // No existing header, so create one
+      if (TS_SUCCESS == TSMimeHdrFieldCreateNamed(res.bufp, res.hdr_loc, _header.c_str(), _header.size(), &field_loc)) {
+        if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(res.bufp, res.hdr_loc, field_loc, -1, value.c_str(), value.size())) {
+          TSDebug(PLUGIN_NAME, "   Adding header %s", _header.c_str());
+          TSMimeHdrFieldAppend(res.bufp, res.hdr_loc, field_loc);
+        }
+        TSHandleMLocRelease(res.bufp, res.hdr_loc, field_loc);
+      }
+    } else {
+      TSMLoc tmp = NULL;
+      bool first = true;
+
+      while (field_loc) {
+        if (first) {
+          first = false;
+          if (TS_SUCCESS == TSMimeHdrFieldValueStringSet(res.bufp, res.hdr_loc, field_loc, -1, value.c_str(), value.size())) {
+            TSDebug(PLUGIN_NAME, "   Overwriting header %s", _header.c_str());
+          }
+        } else {
+          TSMimeHdrFieldDestroy(res.bufp, res.hdr_loc, field_loc);
+        }
+        tmp = TSMimeHdrFieldNextDup(res.bufp, res.hdr_loc, field_loc);
+        TSHandleMLocRelease(res.bufp, res.hdr_loc, field_loc);
+        field_loc = tmp;
+      }
+    }
+  }
+}
+
+// OperatorCounter
+void
+OperatorCounter::initialize(Parser& p) {
+  Operator::initialize(p);
+
+  _counter_name = p.get_arg();
+
+  // Sanity
+  if (_counter_name.length() == 0) {
+    TSError("%s: counter name is empty", PLUGIN_NAME);
+    return;
+  }
+
+  // Check if counter already created by another rule
+  if (TSStatFindName(_counter_name.c_str(), &_counter) == TS_ERROR) {
+    _counter = TSStatCreate(_counter_name.c_str(), TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_COUNT);
+    if (_counter == TS_ERROR) {
+      TSError("%s: TSStatCreate() failed. Can't create counter: %s", PLUGIN_NAME, _counter_name.c_str());
+      return;
+    }
+    TSDebug(PLUGIN_NAME, "OperatorCounter::initialize(%s) created counter with id: %d", _counter_name.c_str(), _counter);
+  } else {
+    TSDebug(PLUGIN_NAME, "OperatorCounter::initialize(%s) reusing id: %d", _counter_name.c_str(), _counter);
+  }
+}
+
+void
+OperatorCounter::exec(const Resources& /* ATS_UNUSED res */) const
+{
+  // Sanity
+  if (_counter == TS_ERROR)
+    return;
+
+  TSDebug(PLUGIN_NAME, "OperatorCounter::exec() invoked on counter %s", _counter_name.c_str());
+  TSStatIntIncrement(_counter, 1);
+}
diff --git a/plugins/header_rewrite/operators.h b/plugins/header_rewrite/operators.h
new file mode 100644
index 00000000..b41fe7fd
--- /dev/null
+++ b/plugins/header_rewrite/operators.h
@@ -0,0 +1,283 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __OPERATORS_H__
+#define __OPERATORS_H__ 1
+
+#include <string>
+
+#include "ts/ts.h"
+
+#include "operator.h"
+#include "resources.h"
+#include "value.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Operator declarations.
+//
+class OperatorSetConfig : public Operator
+{
+public:
+  OperatorSetConfig()
+    : _key(TS_CONFIG_NULL), _type(TS_RECORDDATATYPE_NULL)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetConfig");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetConfig);
+
+  TSOverridableConfigKey _key;
+  TSRecordDataType _type;
+
+  std::string _config;
+  Value _value;
+};
+
+
+class OperatorSetStatus : public Operator
+{
+public:
+  OperatorSetStatus()
+    : _reason(NULL), _reason_len(0)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetStatus");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void initialize_hooks();
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetStatus);
+
+  Value _status;
+  const char* _reason;
+  int _reason_len;
+};
+
+
+class OperatorSetStatusReason : public Operator
+{
+public:
+  OperatorSetStatusReason()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetStatusReason");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void initialize_hooks();
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetStatusReason);
+
+  Value _reason;
+};
+
+
+class OperatorSetDestination : public Operator
+{
+public:
+  OperatorSetDestination()
+    : _url_qual(URL_QUAL_NONE)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetDestination");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetDestination);
+
+  UrlQualifiers _url_qual;
+  Value _value;
+};
+
+
+class OperatorSetRedirect : public Operator
+{
+public:
+  OperatorSetRedirect()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetRedirect");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetRedirect);
+
+  Value _status;
+  Value _location;
+};
+
+
+class OperatorNoOp : public Operator
+{
+public:
+  OperatorNoOp()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorNoOp");
+  }
+
+protected:
+  void exec(const Resources& /* res ATS_UNUSED */) const { };
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorNoOp);
+};
+
+
+class OperatorSetTimeoutOut : public Operator
+{
+public:
+  OperatorSetTimeoutOut()
+    : _type(TO_OUT_UNDEFINED)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetTimeoutOut");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetTimeoutOut);
+
+  enum TimeoutOutType {
+    TO_OUT_UNDEFINED,
+    TO_OUT_ACTIVE,
+    TO_OUT_INACTIVE,
+    TO_OUT_CONNECT,
+    TO_OUT_DNS
+  };
+
+  TimeoutOutType _type;
+  Value _timeout;
+};
+
+class OperatorSkipRemap : public Operator
+{
+public:
+  OperatorSkipRemap()
+    : _skip_remap(false)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSkipRemap");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSkipRemap);
+
+  bool _skip_remap;
+};
+
+
+// All the header operators share a base class
+class OperatorRMHeader : public OperatorHeaders
+{
+public:
+  OperatorRMHeader()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorRMHeader");
+  }
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorRMHeader);
+};
+
+
+class OperatorAddHeader : public OperatorHeaders
+{
+public:
+  OperatorAddHeader()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorAddHeader");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorAddHeader);
+
+  Value _value;
+};
+
+
+class OperatorSetHeader : public OperatorHeaders
+{
+public:
+  OperatorSetHeader()
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorSetHeader");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorSetHeader);
+
+  Value _value;
+};
+
+class OperatorCounter : public Operator
+{
+public:
+  OperatorCounter()
+    : _counter_name(""), _counter(TS_ERROR)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for OperatorCounter");
+  }
+  void initialize(Parser& p);
+
+protected:
+  void exec(const Resources& res) const;
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(OperatorCounter);
+
+  std::string _counter_name;
+  int _counter;
+};
+
+#endif // __OPERATORS_H
diff --git a/plugins/header_rewrite/parser.cc b/plugins/header_rewrite/parser.cc
new file mode 100644
index 00000000..a50e4383
--- /dev/null
+++ b/plugins/header_rewrite/parser.cc
@@ -0,0 +1,121 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// parser.cc: implementation of the config parser
+//
+//
+#include <utility>
+#include <boost/tokenizer.hpp>
+
+#include "ts/ts.h"
+
+#include "parser.h"
+
+// Tokenizer separators
+static boost::escaped_list_separator<char> token_sep('\\', ' ', '\"');
+static boost::char_separator<char> comma_sep(",");
+
+
+// This is the core "parser", parsing rule sets
+void
+Parser::preprocess(std::vector<std::string>& tokens)
+{
+  // Special case for "conditional" values
+  if (tokens[0].substr(0, 2) == "%{") {
+    _cond = true;
+  } else if (tokens[0] == "cond") {
+    _cond = true;
+    tokens.erase(tokens.begin());
+  }
+
+  // Is it a condition or operator?
+  if (_cond) {
+    if ((tokens[0].substr(0, 2) == "%{") && (tokens[0][tokens[0].size() - 1] == '}')) {
+      std::string s = tokens[0].substr(2, tokens[0].size() - 3);
+
+      _op = s;
+      if (tokens.size() > 1)
+        _arg = tokens[1];
+      else
+        _arg = "";
+    } else {
+      TSError("%s: conditions must be embraced in %%{}", PLUGIN_NAME);
+      return;
+    }
+  } else {
+    // Operator has no qualifiers, but could take an optional second argumetn
+    _op = tokens[0];
+    if (tokens.size() > 1) {
+      _arg = tokens[1];
+      if (tokens.size() > 2)
+        _val = tokens[2];
+      else
+        _val = "";
+    } else {
+      _arg = "";
+      _val = "";
+    }
+  }
+
+  // The last token might be the "flags" section
+  if (tokens.size() > 0) {
+    std::string m  = tokens[tokens.size() - 1];
+
+    if (!m.empty() && (m[0] == '[')) {
+      if (m[m.size() - 1] == ']') {
+        m = m.substr(1, m.size() - 2);
+        if (m.find_first_of(',') != std::string::npos) {
+          boost::tokenizer<boost::char_separator<char> > mods(m, comma_sep);
+          std::copy(mods.begin(), mods.end(), std::back_inserter(_mods));
+        } else {
+          _mods.push_back(m);
+        }
+      } else {
+        // Syntax error
+        TSError("%s: mods have to be embraced in []", PLUGIN_NAME);
+        return;
+      }
+    }
+  }
+}
+
+
+Parser::Parser(const std::string& line) :
+  _cond(false), _empty(false)
+{
+  TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Parser");
+
+  if (line[0] == '#') {
+    _empty = true;
+  } else {
+    boost::tokenizer<boost::escaped_list_separator<char> > elem(line, token_sep);
+    std::vector<std::string> tokens;
+
+    for (boost::tokenizer<boost::escaped_list_separator<char> >::iterator it = elem.begin(); it != elem.end(); it++) {
+      // Skip "empty" tokens (tokenizer is a little brain dead IMO)
+      if ((*it) != "")
+        tokens.push_back(*it);
+    }
+
+    if (tokens.empty()) {
+      _empty = true;
+    } else {
+      preprocess(tokens);
+    }
+  }
+}
diff --git a/plugins/header_rewrite/parser.h b/plugins/header_rewrite/parser.h
new file mode 100644
index 00000000..65ff38a7
--- /dev/null
+++ b/plugins/header_rewrite/parser.h
@@ -0,0 +1,66 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Interface for the config line parser
+//
+#ifndef __PARSER_H__
+#define __PARSER_H__ 1
+
+#include <string>
+#include <vector>
+#include <algorithm>
+
+#include "lulu.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+class Parser
+{
+public:
+  explicit Parser(const std::string& line);
+
+  bool empty() const { return _empty; }
+  bool is_cond() const { return _cond; }
+
+  bool cond_op_is(const std::string s) const { return _cond && (_op == s); }
+  bool oper_op_is(const std::string s) const { return !_cond && (_op == s); }
+
+  const std::string& get_op() const { return _op; }
+  std::string& get_arg() { return _arg; }
+  const std::string& get_value() const { return _val; }
+
+  bool mod_exist(const std::string m) const {
+    return (std::find(_mods.begin(), _mods.end(), m) != _mods.end());
+  }
+
+private:
+  void preprocess(std::vector<std::string>& tokens);
+  DISALLOW_COPY_AND_ASSIGN(Parser);
+
+  bool _cond;
+  bool _empty;
+  std::vector<std::string> _mods;
+  std::string _op;
+  std::string _arg;
+  std::string _val;
+};
+
+
+#endif // __PARSER_H
diff --git a/plugins/header_rewrite/regex_helper.cc b/plugins/header_rewrite/regex_helper.cc
new file mode 100644
index 00000000..bf3eaca2
--- /dev/null
+++ b/plugins/header_rewrite/regex_helper.cc
@@ -0,0 +1,69 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#include "regex_helper.h"
+
+bool
+regexHelper::setRegexMatch(const std::string& s)
+{
+
+    const char* errorComp = NULL;
+    const char* errorStudy = NULL;
+    int erroffset;
+
+    regexString = s;
+    regex = pcre_compile(regexString.c_str(), 0, &errorComp, &erroffset, NULL);
+
+    if (regex == NULL)
+    {
+        return false;
+    }
+    regexExtra = pcre_study(regex, 0, &errorStudy);
+    if ((regexExtra == NULL) && (errorStudy != 0))
+    {
+        return false;
+    }
+    if (pcre_fullinfo(regex, regexExtra, PCRE_INFO_CAPTURECOUNT, &regexCcount) != 0)
+        return false;
+    return true;
+  }
+
+const std::string&
+regexHelper::getRegexString() const
+{
+    return regexString;
+}
+
+int
+regexHelper::getRegexCcount() const
+{
+    return regexCcount;
+}
+
+int
+regexHelper::regexMatch(const char* str, int len, int ovector[]) const {
+    return pcre_exec(regex,                // the compiled pattern
+          regexExtra,          // Extra data from study (maybe)
+          str,                  // the subject std::string
+          len,                  // the length of the subject
+          0,                    // start at offset 0 in the subject
+          0,                    // default options
+          ovector,              // output vector for substring information
+          OVECCOUNT);           // number of elements in the output vector
+  };
+
+
diff --git a/plugins/header_rewrite/regex_helper.h b/plugins/header_rewrite/regex_helper.h
new file mode 100644
index 00000000..7d24da4a
--- /dev/null
+++ b/plugins/header_rewrite/regex_helper.h
@@ -0,0 +1,62 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+#ifndef REGEX_HELPER_H
+#define REGEX_HELPER_H
+
+#include <pcre.h>
+
+#include <string>
+
+
+const int OVECCOUNT = 30; // We support $1 - $9 only, and this needs to be 3x that
+
+class regexHelper
+{
+public:
+    regexHelper():
+        regex(NULL),regexExtra(NULL),regexCcount(0)
+    {
+
+    }
+
+  ~regexHelper()
+  {
+      if (regex)
+          pcre_free(regex);
+
+      if (regexExtra)
+          pcre_free(regexExtra);
+  }
+
+
+
+bool setRegexMatch(const std::string &s);
+const std::string& getRegexString() const;
+int getRegexCcount() const;
+int regexMatch(const char*,int,int ovector[]) const;
+
+private:
+  pcre* regex;
+  pcre_extra* regexExtra;
+  std::string regexString;
+  int regexCcount;
+
+};
+
+
+#endif
diff --git a/plugins/header_rewrite/resources.cc b/plugins/header_rewrite/resources.cc
new file mode 100644
index 00000000..8e34d3be
--- /dev/null
+++ b/plugins/header_rewrite/resources.cc
@@ -0,0 +1,128 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// resources.cc: Implementation of the resources class.
+//
+//
+#include "ts/ts.h"
+
+#include "resources.h"
+#include "lulu.h"
+
+// This is defined in header_rewrite.cc, used here for debugging
+extern char* HOOK_NAMES[];
+
+
+// Collect all resources
+void
+Resources::gather(const ResourceIDs ids, TSHttpHookID hook)
+{
+  TSDebug(PLUGIN_NAME, "Building resources, hook=%s", HOOK_NAMES[hook]);
+
+  // If we need the client request headers, make sure it's also available in the client vars.
+  if (ids & RSRC_CLIENT_REQUEST_HEADERS) {
+    TSDebug(PLUGIN_NAME, "\tAdding TXN client request header buffers");
+    if (TSHttpTxnClientReqGet(txnp, &client_bufp, &client_hdr_loc) != TS_SUCCESS) {
+      TSDebug(PLUGIN_NAME, "could not gather bufp/hdr_loc for request");
+      return;
+    }
+  }
+
+  switch (hook) {
+  case TS_HTTP_READ_RESPONSE_HDR_HOOK:
+    // Read response headers from server
+    if (ids & RSRC_SERVER_RESPONSE_HEADERS) {
+      TSDebug(PLUGIN_NAME, "\tAdding TXN server response header buffers");
+      if (TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "could not gather bufp/hdr_loc for response");
+        return;
+      }
+    }
+    if (ids & RSRC_RESPONSE_STATUS) {
+      TSDebug(PLUGIN_NAME, "\tAdding TXN server response status resource");
+      resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+    }
+    break;
+
+  case TS_HTTP_SEND_REQUEST_HDR_HOOK:
+    // Read request headers to server
+    if (ids & RSRC_SERVER_REQUEST_HEADERS) {
+      TSDebug(PLUGIN_NAME, "\tAdding TXN server request header buffers");
+      if (!TSHttpTxnServerReqGet(txnp, &bufp, &hdr_loc)) {
+        TSDebug(PLUGIN_NAME, "could not gather bufp/hdr_loc for request");
+        return;
+      }
+    }
+    break;
+
+  case TS_HTTP_READ_REQUEST_HDR_HOOK:
+  case TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK:
+    // Read request from client
+    if (ids & RSRC_CLIENT_REQUEST_HEADERS) {
+      bufp = client_bufp;
+      hdr_loc = client_hdr_loc;
+    }
+    break;
+
+  case TS_HTTP_SEND_RESPONSE_HDR_HOOK:
+    // Send response headers to client
+    if (ids & RSRC_CLIENT_RESPONSE_HEADERS) {
+      TSDebug(PLUGIN_NAME, "\tAdding TXN client response header buffers");
+      if (TSHttpTxnClientRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+        TSDebug(PLUGIN_NAME, "could not gather bufp/hdr_loc for request");
+        return;
+      }
+      if (ids & RSRC_RESPONSE_STATUS) {
+        TSDebug(PLUGIN_NAME, "\tAdding TXN client esponse status resource");
+        resp_status = TSHttpHdrStatusGet(bufp, hdr_loc);
+      }
+    }
+    break;
+
+  case TS_REMAP_PSEUDO_HOOK:
+    // Pseudo-hook for a remap instance
+    if (client_bufp && client_hdr_loc) {
+      TSDebug(PLUGIN_NAME, "\tAdding TXN client request header buffers for remap instance");
+      bufp = client_bufp;
+      hdr_loc = client_hdr_loc;
+    }
+    break;
+
+
+  default:
+    break;
+  }
+
+    _ready  = true;
+}
+
+void
+Resources::destroy()
+{
+  if (bufp) {
+    if (hdr_loc)
+      TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  }
+
+  if (client_bufp && (client_bufp != bufp)) {
+    if (client_hdr_loc && (client_hdr_loc != hdr_loc)) // TODO: Is this check really necessary?
+      TSHandleMLocRelease(client_bufp, TS_NULL_MLOC, client_hdr_loc);
+  }
+
+  _ready = false;
+}
diff --git a/plugins/header_rewrite/resources.h b/plugins/header_rewrite/resources.h
new file mode 100644
index 00000000..ccb9e36e
--- /dev/null
+++ b/plugins/header_rewrite/resources.h
@@ -0,0 +1,89 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __RESOURCES_H__
+#define __RESOURCES_H__ 1
+
+#include <string>
+
+#include "ts/ts.h"
+#include "ts/remap.h"
+
+#include "lulu.h"
+
+
+#define TS_REMAP_PSEUDO_HOOK TS_HTTP_LAST_HOOK // Ugly, but use the "last hook" for remap instances.
+
+enum ResourceIDs {
+  RSRC_NONE = 0,
+  RSRC_SERVER_RESPONSE_HEADERS = 1,
+  RSRC_SERVER_REQUEST_HEADERS = 2,
+  RSRC_CLIENT_REQUEST_HEADERS = 4,
+  RSRC_CLIENT_RESPONSE_HEADERS = 8,
+  RSRC_RESPONSE_STATUS = 16,
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Resources holds the minimum resources required to process a request.
+//
+class Resources
+{
+public:
+  explicit Resources(TSHttpTxn txnptr, TSCont contptr)
+    : txnp(txnptr), contp(contptr), bufp(NULL), hdr_loc(NULL), client_bufp(NULL), client_hdr_loc(NULL),
+      resp_status(TS_HTTP_STATUS_NONE), _rri(NULL), changed_url(false), _ready(false)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Resources (InkAPI)");
+  }
+
+  Resources(TSHttpTxn txnptr, TSRemapRequestInfo *rri) :
+    txnp(txnptr), contp(NULL),
+    bufp(NULL), hdr_loc(NULL), client_bufp(NULL), client_hdr_loc(NULL), resp_status(TS_HTTP_STATUS_NONE),
+      _rri(rri), changed_url(false), _ready(false)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Resources (RemapAPI)");
+  }
+
+  ~Resources() { destroy(); }
+
+  void gather(const ResourceIDs ids, TSHttpHookID hook);
+  bool ready() const { return _ready; }
+
+  TSHttpTxn txnp;
+  TSCont contp;
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+  TSMBuffer client_bufp;
+  TSMLoc client_hdr_loc;
+  TSHttpStatus resp_status;
+  TSRemapRequestInfo *_rri;
+  bool changed_url;
+
+private:
+  void destroy();
+  DISALLOW_COPY_AND_ASSIGN(Resources);
+
+  bool _ready;
+};
+
+
+#endif // __RESOURCES_H
diff --git a/plugins/header_rewrite/ruleset.cc b/plugins/header_rewrite/ruleset.cc
new file mode 100644
index 00000000..e210e476
--- /dev/null
+++ b/plugins/header_rewrite/ruleset.cc
@@ -0,0 +1,92 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// ruleset.cc: implementation of the ruleset class
+//
+//
+#include <string>
+
+#include "ruleset.h"
+#include "factory.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Class implementation (no reason to have these inline)
+//
+void
+RuleSet::append(RuleSet* rule)
+{
+  RuleSet* tmp = this;
+
+  TSReleaseAssert(rule->next == NULL);
+
+  while (tmp->next)
+    tmp = tmp->next;
+  tmp->next = rule;
+}
+
+
+void
+RuleSet::add_condition(Parser& p)
+{
+  Condition* c = condition_factory(p.get_op());
+
+  if (NULL != c) {
+    TSDebug(PLUGIN_NAME, "   Adding condition: %%{%s} with arg: %s\n", p.get_op().c_str(), p.get_arg().c_str());
+    c->initialize(p);
+    if (!c->set_hook(_hook)) {
+      TSError("%s: can't use this condition in this hook", PLUGIN_NAME);
+      return;
+    }
+    if (NULL == _cond) {
+      _cond = c;
+    } else {
+      _cond->append(c);
+    }
+
+    // Update some ruleset state based on this new condition
+    _last |= c->last();
+    _ids = static_cast<ResourceIDs>(_ids | _cond->get_resource_ids());
+  }
+}
+
+
+void
+RuleSet::add_operator(Parser& p)
+{
+  Operator* o = operator_factory(p.get_op());
+
+  if (NULL != o) {
+    // TODO: This should be extended to show both the "argument" and the "value" (if both are used)
+    TSDebug(PLUGIN_NAME, "   Adding operator: %s(%s)\n", p.get_op().c_str(), p.get_arg().c_str());
+    o->initialize(p);
+    if (!o->set_hook(_hook)) {
+      TSError("%s: can't use this operator in this hook", PLUGIN_NAME);
+      return;
+    }
+    if (NULL == _oper) {
+      _oper = o;
+    } else {
+      _oper->append(o);
+    }
+
+    // Update some ruleset state based on this new operator
+    _opermods = static_cast<OperModifiers>(_opermods | _oper->get_oper_modifiers());
+    _ids = static_cast<ResourceIDs>(_ids | _oper->get_resource_ids());
+  }
+}
diff --git a/plugins/header_rewrite/ruleset.h b/plugins/header_rewrite/ruleset.h
new file mode 100644
index 00000000..5197a9d6
--- /dev/null
+++ b/plugins/header_rewrite/ruleset.h
@@ -0,0 +1,98 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Implement the classes for the various types of hash keys we support.
+//
+#ifndef __RULESET_H__
+#define __RULESET_H__ 1
+
+#include <string>
+
+#include "matcher.h"
+#include "factory.h"
+#include "resources.h"
+#include "parser.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Class holding one ruleset. A ruleset is one (or more) pre-conditions, and
+// one (or more) operators.
+//
+class RuleSet
+{
+public:
+  RuleSet()
+    : next(NULL), _cond(NULL), _oper(NULL), _hook(TS_HTTP_READ_RESPONSE_HDR_HOOK), _ids(RSRC_NONE),
+      _opermods(OPER_NONE), _last(false)
+  { };
+
+  // No reason to inline these
+  void append(RuleSet* rule);
+
+  void add_condition(Parser& p);
+  void add_operator(Parser& p);
+  bool has_operator() const { return NULL != _oper; }
+  bool has_condition() const { return NULL != _cond; }
+
+  void set_hook(TSHttpHookID hook) { _hook = hook; }
+  const TSHttpHookID get_hook() const { return _hook; }
+
+  // Inline
+  const ResourceIDs get_all_resource_ids() const
+  {
+    return _ids;
+  }
+
+  bool eval(const Resources& res) const
+  {
+    if (NULL == _cond) {
+      return true;
+    } else {
+      return _cond->do_eval(res);
+    }
+  }
+
+  bool last() const
+  {
+    return _last;
+  }
+
+  OperModifiers exec(const Resources& res) const
+  {
+    _oper->do_exec(res);
+    return _opermods;
+  }
+
+  RuleSet* next; // Linked list
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(RuleSet);
+
+  Condition* _cond; // First pre-condition (linked list)
+  Operator* _oper; // First operator (linked list)
+  TSHttpHookID _hook; // Which hook is this rule for
+
+  // State values (updated when conds / operators are added)
+  ResourceIDs _ids;
+  OperModifiers _opermods;
+  bool _last;
+};
+
+
+#endif // __RULESET_H
diff --git a/plugins/header_rewrite/statement.cc b/plugins/header_rewrite/statement.cc
new file mode 100644
index 00000000..439cdab4
--- /dev/null
+++ b/plugins/header_rewrite/statement.cc
@@ -0,0 +1,100 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// statement.cc: Implementation of the statement base class.
+//
+//
+#include "ts/ts.h"
+
+#include "statement.h"
+
+void
+Statement::append(Statement* stmt)
+{
+  Statement* tmp = this;
+
+  TSReleaseAssert(stmt->_next == NULL);
+  while (tmp->_next)
+    tmp = tmp->_next;
+  tmp->_next = stmt;
+}
+
+
+const ResourceIDs
+Statement::get_resource_ids() const
+{
+  const Statement* stmt = this;
+  ResourceIDs ids = RSRC_NONE;
+
+  while (stmt) {
+    ids = static_cast<ResourceIDs>(ids | stmt->_rsrc);
+    stmt = stmt->_next;
+  }
+
+  return ids;
+}
+
+
+bool
+Statement::set_hook(TSHttpHookID hook)
+{
+  bool ret = std::find(_allowed_hooks.begin(), _allowed_hooks.end(), hook) != _allowed_hooks.end();
+
+  if (ret)
+    _hook = hook;
+
+  return ret;
+}
+
+
+// This should be overridden for any Statement which only supports some hooks
+void
+Statement::initialize_hooks()
+{
+  add_allowed_hook(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+  add_allowed_hook(TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK);
+  add_allowed_hook(TS_HTTP_READ_REQUEST_HDR_HOOK);
+  add_allowed_hook(TS_HTTP_SEND_REQUEST_HDR_HOOK);
+  add_allowed_hook(TS_HTTP_SEND_RESPONSE_HDR_HOOK);
+  add_allowed_hook(TS_REMAP_PSEUDO_HOOK);
+}
+
+
+// Parse URL qualifiers
+UrlQualifiers
+Statement::parse_url_qualifier(const std::string& q)
+{
+  UrlQualifiers qual = URL_QUAL_NONE;
+
+  if (q == "HOST")
+    qual = URL_QUAL_HOST;
+  else if (q == "PORT")
+    qual = URL_QUAL_PORT;
+  else if (q == "PATH")
+    qual = URL_QUAL_PATH;
+  else if (q == "QUERY")
+    qual = URL_QUAL_QUERY;
+  else if (q == "MATRIX")
+    qual = URL_QUAL_MATRIX;
+  else if (q == "SCHEME")
+    qual = URL_QUAL_SCHEME;
+  else if (q == "URL")
+    qual = URL_QUAL_URL;
+
+  return qual;
+}
diff --git a/plugins/header_rewrite/statement.h b/plugins/header_rewrite/statement.h
new file mode 100644
index 00000000..8620543c
--- /dev/null
+++ b/plugins/header_rewrite/statement.h
@@ -0,0 +1,107 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+//
+// Base class for all Conditions and Operations. We share the "linked" list, and the
+// resource management / requirements.
+//
+#ifndef __STATEMENT_H__
+#define __STATEMENT_H__ 1
+
+#include <string>
+#include <vector>
+
+#include "ts/ts.h"
+
+#include "resources.h"
+#include "parser.h"
+#include "lulu.h"
+
+
+// URL data (both client and server)
+enum UrlQualifiers {
+  URL_QUAL_NONE,
+  URL_QUAL_HOST,
+  URL_QUAL_PORT,
+  URL_QUAL_PATH,
+  URL_QUAL_QUERY,
+  URL_QUAL_MATRIX,
+  URL_QUAL_SCHEME,
+  URL_QUAL_URL
+};
+
+
+class Statement
+{
+ public:
+  Statement()
+    : _next(NULL), _pdata(NULL), _rsrc(RSRC_NONE), _initialized(false), _hook(TS_HTTP_READ_RESPONSE_HDR_HOOK)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Statement");
+  }
+
+  virtual ~Statement() {
+    TSDebug(PLUGIN_NAME_DBG, "Calling DTOR for Statement");
+    free_pdata();
+  }
+
+  // Private data
+  void set_pdata(void* pdata) { _pdata = pdata; }
+  void* get_pdata() const { return(_pdata); }
+  virtual void free_pdata() { TSfree(_pdata); _pdata = NULL; }
+
+  // Which hook are we adding this statement to?
+  bool set_hook(TSHttpHookID hook);
+  const TSHttpHookID get_hook() const { return _hook; }
+
+  // Which hooks are this "statement" applicable for? Used during parsing only.
+  void add_allowed_hook(const TSHttpHookID hook) { _allowed_hooks.push_back(hook); }
+
+  // Linked list.
+  void append(Statement* stmt);
+
+  const ResourceIDs get_resource_ids() const;
+
+  virtual void initialize(Parser&) { // Parser &p
+    TSReleaseAssert(_initialized == false);
+    initialize_hooks();
+    _initialized = true;
+  }
+  bool initialized() const { return _initialized; }
+
+ protected:
+  virtual void initialize_hooks();
+
+  UrlQualifiers parse_url_qualifier(const std::string& q);
+  void require_resources(const ResourceIDs ids) { _rsrc = static_cast<ResourceIDs>(_rsrc | ids); }
+
+  Statement* _next; // Linked list
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(Statement);
+
+  void* _pdata;
+  ResourceIDs _rsrc;
+  bool _initialized;
+  std::vector<TSHttpHookID> _allowed_hooks;
+  TSHttpHookID _hook;
+};
+
+
+#endif // __STATEMENT_H
+
diff --git a/plugins/header_rewrite/value.h b/plugins/header_rewrite/value.h
new file mode 100644
index 00000000..8e6c8f9a
--- /dev/null
+++ b/plugins/header_rewrite/value.h
@@ -0,0 +1,101 @@
+/*
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+//////////////////////////////////////////////////////////////////////////////////////////////
+// Public interface for creating all values.
+//
+//
+#ifndef __VALUE_H__
+#define __VALUE_H__ 1
+
+#include <string>
+
+#include "ts/ts.h"
+
+#include "resources.h"
+#include "statement.h"
+#include "condition.h"
+#include "factory.h"
+#include "parser.h"
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Base class for all Values (this is also the interface).
+//
+// TODO: This is very incomplete, we need to support linked lists of these,
+// which evaluate each component and create a "joined" final string.
+//
+class Value : Statement
+{
+public:
+  Value()
+    : _need_expander(false), _value(""), _int_value(0), _float_value(0.0), _cond_val(NULL)
+  {
+    TSDebug(PLUGIN_NAME_DBG, "Calling CTOR for Value");
+  }
+
+  void
+  set_value(const std::string& val)
+  {
+    _value = val;
+    if (_value.substr(0,2) == "%{") {
+      Parser parser(_value);
+
+      _cond_val = condition_factory(parser.get_op());
+      if (_cond_val) {
+        _cond_val->initialize(parser);
+      }
+    } else if (_value.find("%<") != std::string::npos) { // It has a Variable to expand
+      _need_expander = true; // And this is clearly not an integer or float ...
+      // TODO: This is still not optimal, we should pre-parse the _value string here,
+      // and perhaps populate a per-Value VariableExpander that holds state.
+    } else {
+      _int_value = strtol(_value.c_str(), NULL, 10);
+      _float_value = strtod(_value.c_str(), NULL);
+    }
+  }
+
+  void
+  append_value(std::string& s, const Resources& res) const
+  {
+    if (_cond_val) {
+      _cond_val->append_value(s, res);
+    } else {
+      s += _value;
+    }
+  }
+
+  const std::string& get_value() const { return _value; }
+  size_t size() const { return _value.size(); }
+  int get_int_value() const { return _int_value; }
+  double get_float_value() const { return _float_value; }
+
+  bool empty() const { return _value.empty(); }
+  bool need_expansion() const { return _need_expander; }
+
+private:
+  DISALLOW_COPY_AND_ASSIGN(Value);
+
+  bool _need_expander;
+  std::string _value;
+  int _int_value;
+  double _float_value;
+  Condition* _cond_val;
+};
+
+
+#endif // __VALUE_H
diff --git a/plugins/libloader/Makefile.am b/plugins/libloader/Makefile.am
new file mode 100644
index 00000000..1a91a0f1
--- /dev/null
+++ b/plugins/libloader/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = libloader.la
+libloader_la_SOURCES = libloader.c
+libloader_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/libloader/Makefile.in b/plugins/libloader/Makefile.in
new file mode 100644
index 00000000..986ed7d8
--- /dev/null
+++ b/plugins/libloader/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp
+subdir = plugins/libloader
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+libloader_la_LIBADD =
+am_libloader_la_OBJECTS = libloader.lo
+libloader_la_OBJECTS = $(am_libloader_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+libloader_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(libloader_la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(libloader_la_SOURCES)
+DIST_SOURCES = $(libloader_la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+pkgdatadir = @pkgdatadir@
+pkglibdir = $(pkglibexecdir)
+pkglibexecdir = @pkglibexecdir@
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_CFLAGS = @AM_CFLAGS@
+AM_CXXFLAGS = @AM_CXXFLAGS@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+API_DEFS = @API_DEFS@
+AR = @AR@
+ASCPP = @ASCPP@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+BOOST_CPPFLAGS = @BOOST_CPPFLAGS@
+BOOST_LDFLAGS = @BOOST_LDFLAGS@
+CC = @CC@
+CCACHE = @CCACHE@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CURL_CFLAGS = @CURL_CFLAGS@
+CURL_CONFIG = @CURL_CONFIG@
+CURL_LIBS = @CURL_LIBS@
+CURSES_LIB = @CURSES_LIB@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+EXPAT_LDFLAGS = @EXPAT_LDFLAGS@
+EXTRA_CC_LDFLAGS = @EXTRA_CC_LDFLAGS@
+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
+FGREP = @FGREP@
+FLEX_CFLAGS = @FLEX_CFLAGS@
+GEOIP_LIBS = @GEOIP_LIBS@
+GREP = @GREP@
+HOST_GUESS = @HOST_GUESS@
+HWLOC_CFLAGS = @HWLOC_CFLAGS@
+HWLOC_LIBS = @HWLOC_LIBS@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
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+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
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+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = libloader.la
+libloader_la_SOURCES = libloader.c
+libloader_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/libloader/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/libloader/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+libloader.la: $(libloader_la_OBJECTS) $(libloader_la_DEPENDENCIES) $(EXTRA_libloader_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(libloader_la_LINK) -rpath $(pkglibdir) $(libloader_la_OBJECTS) $(libloader_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libloader.Plo@am__quote@
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/libloader/libloader.c b/plugins/libloader/libloader.c
new file mode 100644
index 00000000..5cf990ea
--- /dev/null
+++ b/plugins/libloader/libloader.c
@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * Copyright (C) 2011-13 Qualys, Inc
+ * Copyright (C) 2013 The Apache Software Foundation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * QUALYS licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ****************************************************************************/
+
+/* libloader: load libraries, making all symbols exported
+ * universally visible.  Equivalent to LoadFile in HTTPD.
+ *
+ * Written for ironbee plugin, whose module architecture
+ * is not compatible with trafficserver's plugins.
+ * May be useful for other plugins with non-trivial
+ * library dependencies.
+ */
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ts/ts.h>
+
+typedef struct {
+    void *handle;
+    void *next;
+} link_handle;
+
+static link_handle *libs = NULL;
+
+static void unloadlibs(void)
+{
+    link_handle *p = libs;
+    while (p != NULL) {
+        link_handle *next = p->next;
+        dlclose(p->handle);
+        TSfree(p);
+        p = next;
+    }
+    libs = NULL;
+}
+
+void TSPluginInit(int argc, const char *argv[])
+{
+    int i;
+    TSPluginRegistrationInfo info;
+
+    info.plugin_name = (char *)"libloader";
+    info.vendor_name = (char *)"Apache Software Foundation";
+    info.support_email = (char *)"dev@trafficserver.apache.org";
+
+    if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+        TSError("[libloader] Plugin registration failed.\n");
+        return;
+    }
+
+    atexit(unloadlibs);
+
+    for (i = 1; i < argc; ++i) {
+        const char *lib = argv[i];
+        void *handle = dlopen(lib, RTLD_GLOBAL|RTLD_NOW);
+        if (handle) {
+            link_handle *l = TSmalloc(sizeof(link_handle));
+            l->handle = handle;
+            l->next = libs;
+            libs = l;
+            TSDebug("libloader", " loaded %s\n", lib);
+        }
+        else {
+            TSError("[libloader] failed to load %s: %s\n", lib, dlerror());
+        }
+    }
+    return;
+}
diff --git a/plugins/regex_remap/Makefile.am b/plugins/regex_remap/Makefile.am
new file mode 100644
index 00000000..5a696cb9
--- /dev/null
+++ b/plugins/regex_remap/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = regex_remap.la
+regex_remap_la_SOURCES = regex_remap.cc
+regex_remap_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/regex_remap/Makefile.in b/plugins/regex_remap/Makefile.in
new file mode 100644
index 00000000..e704410c
--- /dev/null
+++ b/plugins/regex_remap/Makefile.in
@@ -0,0 +1,935 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
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+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = regex_remap.la
+regex_remap_la_SOURCES = regex_remap.cc
+regex_remap_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/regex_remap/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/regex_remap/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+regex_remap.la: $(regex_remap_la_OBJECTS) $(regex_remap_la_DEPENDENCIES) $(EXTRA_regex_remap_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(regex_remap_la_LINK) -rpath $(pkglibdir) $(regex_remap_la_OBJECTS) $(regex_remap_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/regex_remap.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/regex_remap/README b/plugins/regex_remap/README
new file mode 100644
index 00000000..2a981021
--- /dev/null
+++ b/plugins/regex_remap/README
@@ -0,0 +1,130 @@
+This is a plugin for the Apache Traffic Server, that allows you to
+configure mapping rules based on regular expressions. This is similar to
+what you can accomplish using mod_rewrite in apache, but obviously not
+as flexible or sophisticated (yet).
+
+To use this plugin, configure a remap.config rule like
+
+   map http://a.com http://b.com @plugin=regex_remap.so @pparam=maps.reg
+
+
+An optional argument (@@pparam) with the string "profile" will enable
+profiling of this regex remap rule, e.g.
+
+  ... @pparam=maps.reg @pparam=profile
+
+
+Profiling is very low overhead, and the information is dumped to
+traffic.out, typically in /usr/local/var/logs/trafficserver/traffic.out.
+In order to force a profile dump, you can do
+
+    $ sudo touch /usr/local/etc/trafficserver/remap.config
+    $ sudo traffic_line -x
+
+
+By default, only the path and query string of the URL is
+provided for the regular expressions to match. The following optional
+parameters can be used to modify the plugin instance behavior:
+
+    @pparam=[no-]method              [default: off]
+    @pparam=[no-]query-string        [default: on]
+    @pparam=[no-]matrix-parameters   [default: off]
+
+
+
+If you wish to match on the HTTP method used (e.g. "GET"), you must
+use the option @pparam=method. For example:
+
+   ... @pparam=maps.reg @pparam=method
+
+
+With this enabled, the string that you will need to match will look like
+
+    GET/path?query=bar
+
+
+The methods are always all upper-case, and always followed by one single
+space. There is no space between the method and the rest of the URL (or
+URI path).
+
+By default, the query string is part of the string that is matched again,
+to turn this off use the option 'no-query-string', e.g.
+
+   ... @pparam=maps.reg @pparam=no-query-string
+
+
+Finally, you can also include the matrix parameters in the string, using the
+option 'matrix-parameters', e.g.
+
+   ... @pparam=maps.reg @pparam=matrix-parameters
+
+
+Note that the path to the plugin must be absolute, and by default it is
+
+    /usr/local/libexec/trafficserver/regex_remap.so
+
+
+The config file (maps.reg above) can be placed anywhere, but unless you
+specify an absolute path (as above), it will default to the directory
+
+  /usr/local/etc/regex_remap
+
+
+A typical regex would look like
+
+    ^/(ogre.*)/more     http://www.ogre.com/$h/$0/$1
+
+
+The regular expression must not contain any white spaces!
+
+When the regular expression is matched, only the URL path + query string is
+matched (without any of the optional configuration options). The path
+will always start with a "/". Various substitution strings are allowed
+on the right hand side:
+
+    $0     - The entire matched string
+    $1-9   - Regular expression groups ($1 first group etc.)
+    $h     - The original host header from the request
+    $f     - The host as used in the "from" portion of the remap rule
+    $t     - The host as used in the "to" portion of the remap rule
+    $p     - The original port number
+    $s     - The scheme (e.g. http) of the request
+    $P     - The entire path of the request
+    $l     - The entire path of the request in lowercase
+    $q     - The query part of the request
+    $r     - The path parameters of the request (not implemented yet)
+    $c     - The cookie string from the request
+    $i     - The client IP for this request
+
+
+You can also provide options, similar to how you configure your
+remap.config. The following options are available
+
+    @status=<nnn>                   - Force the response code to <nnn>
+    @active_timeout=<nnn>           - Active timeout (in ms)
+    @no_activity_timeout=<nnn>      - No activity timeout (in ms)
+    @connect_timeout=<nnn>          - Connect timeouts (in ms)
+    @dns_timeout=<nnn>              - Connect timeouts (in ms)
+    @lowercase_substitutions=<0|1>  - Turn on lowercasing all the substitutions
+
+
+For example, this can be useful to force a particular response for some
+URLs, e.g.
+
+    ^/(ogre.*)/bad      http://www.examle.com/  @status=404
+
+
+Or, to force a 302 redirect
+
+    ^/oldurl/(.*)$      http://news.example.com/new/$1 @status=302
+
+
+Note: Setting the status to 301 or 302 will force the new URL to be used
+as a redirect (Location:).
+
+
+RELEASES
+--------
+
+Version 2.0
+  - Initial Open Source release.
diff --git a/plugins/regex_remap/regex_remap.cc b/plugins/regex_remap/regex_remap.cc
new file mode 100644
index 00000000..d489dc2b
--- /dev/null
+++ b/plugins/regex_remap/regex_remap.cc
@@ -0,0 +1,1053 @@
+/** @file
+
+    ATS plugin to do (simple) regular expression remap rules
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#include "ts/ts.h"
+#include "ts/remap.h"
+#include "ink_config.h"
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+#include <ctype.h>
+#include <unistd.h>
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <ctype.h>
+
+// Get some specific stuff from libts, yes, we can do that now that we build inside the core.
+#include "ink_platform.h"
+#include "ink_atomic.h"
+#include "ink_time.h"
+
+static const char* PLUGIN_NAME = "regex_remap";
+
+// Constants
+static const int OVECCOUNT = 30; // We support $0 - $9 x2 ints, and this needs to be 1.5x that
+static const int MAX_SUBS = 32;   // No more than 32 substitution variables in the subst string
+
+// Substitutions other than regex matches
+enum ExtraSubstitutions {
+  SUB_HOST = 11,
+  SUB_FROM_HOST = 12,
+  SUB_TO_HOST = 13,
+  SUB_PORT = 14,
+  SUB_SCHEME = 15,
+  SUB_PATH = 16,
+  SUB_QUERY = 17,
+  SUB_MATRIX = 18,
+  SUB_CLIENT_IP = 19,
+  SUB_LOWER_PATH = 20,
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Class holding one request URL's component, to simplify the code and
+// length calculations (we need all of them).
+//
+struct UrlComponents
+{
+  UrlComponents()
+    : scheme(NULL), host(NULL), path(NULL), query(NULL), matrix(NULL), port(0),
+      scheme_len(0), host_len(0), path_len(0), query_len(0), matrix_len(0), url_len(0)
+  {}
+
+  void populate(TSRemapRequestInfo *rri)
+  {
+    scheme = TSUrlSchemeGet(rri->requestBufp, rri->requestUrl, &scheme_len);
+    host = TSUrlHostGet(rri->requestBufp, rri->requestUrl, &host_len);
+    path = TSUrlPathGet(rri->requestBufp, rri->requestUrl, &path_len);
+    query = TSUrlHttpQueryGet(rri->requestBufp, rri->requestUrl, &query_len);
+    matrix = TSUrlHttpParamsGet(rri->requestBufp, rri->requestUrl, &matrix_len);
+    port = TSUrlPortGet(rri->requestBufp, rri->requestUrl);
+
+    url_len = scheme_len + host_len + path_len + query_len + matrix_len + 32;
+  }
+
+  const char* scheme;
+  const char* host;
+  const char* path;
+  const char* query;
+  const char* matrix;
+  int port;
+
+  int scheme_len;
+  int host_len;
+  int path_len;
+  int query_len;
+  int matrix_len;
+
+  int url_len; // Full length, of all components
+};
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Class encapsulating one regular expression (and the linked list).
+//
+class RemapRegex
+{
+ public:
+  RemapRegex() :
+    _num_subs(-1), _rex(NULL), _extra(NULL), _options(0), _order(-1),
+    _simple(false), _lowercase_substitutions(false),
+    _active_timeout(-1), _no_activity_timeout(-1), _connect_timeout(-1), _dns_timeout(-1),
+    _first_override(NULL)
+  {
+    TSDebug(PLUGIN_NAME, "Calling constructor");
+  }
+
+  ~RemapRegex()
+  {
+    TSDebug(PLUGIN_NAME, "Calling destructor");
+    TSfree(_rex_string);
+    TSfree(_subst);
+
+    if (_rex) {
+      pcre_free(_rex);
+    }
+    if (_extra) {
+      pcre_free(_extra);
+    }
+  }
+
+  bool initialize(const std::string& reg, const std::string& sub, const std::string& opt);
+
+  // For profiling information
+  void increment() { ink_atomic_increment(&(_hits), 1); }
+  void print(int ix, int max, const char* now)
+  {
+    fprintf(stderr, "[%s]:    Regex %d ( %s ): %.2f%%\n", now, ix, _rex_string, 100.0 * _hits / max);
+  }
+
+  int compile(const char** error, int* erroffset);
+
+  // Perform the regular expression matching against a string.
+  int
+  match(const char* str, int len, int ovector[])
+  {
+    return pcre_exec(_rex,                 // the compiled pattern
+                     _extra,               // Extra data from study (maybe)
+                     str,                  // the subject string
+                     len,                  // the length of the subject
+                     0,                    // start at offset 0 in the subject
+                     0,                    // default options
+                     ovector,              // output vector for substring information
+                     OVECCOUNT);           // number of elements in the output vector
+  }
+
+  // Substitutions
+  int get_lengths(const int ovector[], int lengths[], TSRemapRequestInfo *rri, UrlComponents *req_url);
+  int substitute(char dest[], const char *src, const int ovector[], const int lengths[],
+                 TSRemapRequestInfo *rri, UrlComponents *req_url, bool lowercase_substitutions);
+
+  // setter / getters for members the linked list.
+  inline void set_next(RemapRegex* next) { _next = next; }
+  inline RemapRegex* next() const { return _next; }
+
+  // setter / getters for order number within the linked list
+  inline void set_order(int order) { _order = order; }
+  inline int order() { return _order; }
+
+  // Various getters
+  inline const char* regex() const { return _rex_string;  }
+  inline const char* substitution() const { return _subst;  }
+  inline int substitutions_used() const { return _num_subs; }
+
+  inline bool is_simple() const { return _simple; }
+
+  inline TSHttpStatus status_option() const { return _status; }
+  inline int active_timeout_option() const  { return _active_timeout; }
+  inline int no_activity_timeout_option() const  { return _no_activity_timeout; }
+  inline int connect_timeout_option() const  { return _connect_timeout; }
+  inline int dns_timeout_option() const  { return _dns_timeout; }
+  inline bool lowercase_substitutions_option() const  { return _lowercase_substitutions; }
+
+  // Hold an overridable configurations
+  struct Override {
+    TSOverridableConfigKey key;
+    TSRecordDataType type;
+    TSRecordData data;
+    int data_len; // Used when data is a string
+    Override* next;
+  };
+
+  Override* get_overrides() const { return _first_override; }
+
+ private:
+  char* _rex_string;
+  char* _subst;
+  int _subst_len;
+  int _num_subs;
+  int _hits;
+
+  pcre* _rex;
+  pcre_extra* _extra;
+  int _options;
+  int _sub_pos[MAX_SUBS];
+  int _sub_ix[MAX_SUBS];
+  RemapRegex* _next;
+  int _order;
+  TSHttpStatus _status;
+  bool _simple;
+  bool _lowercase_substitutions;
+  int _active_timeout;
+  int _no_activity_timeout;
+  int _connect_timeout;
+  int _dns_timeout;
+
+  Override* _first_override;
+};
+
+bool
+RemapRegex::initialize(const std::string& reg, const std::string& sub, const std::string& opt)
+{
+  _status = static_cast<TSHttpStatus>(0);
+
+  if (!reg.empty()) {
+    if (reg == ".") {
+      TSDebug(PLUGIN_NAME, "Rule is simple, and fast!");
+      _simple = true;
+    }
+    _rex_string = TSstrdup(reg.c_str());
+  } else
+    _rex_string = NULL;
+
+  if (!sub.empty()) {
+    _subst = TSstrdup(sub.c_str());
+    _subst_len = sub.length();
+  } else {
+    _subst = NULL;
+    _subst_len = 0;
+  }
+
+  _hits = 0;
+
+  memset(_sub_pos, 0, sizeof(_sub_pos));
+  memset(_sub_ix, 0, sizeof(_sub_ix));
+  _next = NULL;
+
+  // Parse options
+  std::string::size_type start = opt.find_first_of("@");
+  std::string::size_type pos1, pos2;
+  Override* last_override = NULL;
+
+  while (start != std::string::npos) {
+    std::string opt_val;
+
+    ++start;
+    pos1 = opt.find_first_of("=", start);
+    pos2 = opt.find_first_of(" \t\n", pos1);
+    if (pos2 == std::string::npos) {
+      pos2 = opt.length();
+    }
+
+    if (pos1 != std::string::npos) {
+      // Get the value as well
+      ++pos1;
+      opt_val = opt.substr(pos1, pos2-pos1);
+    }
+
+    // These take an option 0|1 value, without value it implies 1
+    if (opt.compare(start, 8, "caseless") == 0) {
+      _options |= PCRE_CASELESS;
+    } else if (opt.compare(start, 23, "lowercase_substitutions") == 0) {
+      _lowercase_substitutions = true;
+    } else if (opt_val.size() <= 0) {
+      // All other options have a required value
+      TSError("Malformed options: %s", opt.c_str());
+      break;
+    } else if (opt.compare(start, 6, "status") == 0) {
+      _status = static_cast<TSHttpStatus>(strtol(opt_val.c_str(), NULL, 10));
+    } else if (opt.compare(start, 14, "active_timeout") == 0) {
+      _active_timeout = strtol(opt_val.c_str(), NULL, 10);
+    } else if (opt.compare(start, 19, "no_activity_timeout") == 0) {
+      _no_activity_timeout = strtol(opt_val.c_str(), NULL, 10);
+    } else if (opt.compare(start, 15, "connect_timeout") == 0) {
+      _connect_timeout = strtol(opt_val.c_str(), NULL, 10);
+    } else if (opt.compare(start, 11, "dns_timeout") == 0) {
+      _dns_timeout = strtol(opt_val.c_str(), NULL, 10);
+    } else {
+      TSOverridableConfigKey key;
+      TSRecordDataType type;
+      std::string opt_name = opt.substr(start, pos1-start-1);
+
+      if (TS_SUCCESS == TSHttpTxnConfigFind(opt_name.c_str(), opt_name.length(), &key, &type)) {
+        Override* cur = new Override;
+
+        switch (type) {
+        case TS_RECORDDATATYPE_INT:
+          cur->data.rec_int = strtoll(opt_val.c_str(), NULL, 10);
+          break;
+        case TS_RECORDDATATYPE_FLOAT:
+          cur->data.rec_float = strtof(opt_val.c_str(), NULL);
+          break;
+        case TS_RECORDDATATYPE_STRING:
+          cur->data.rec_string = TSstrdup(opt_val.c_str());
+          cur->data_len = opt_val.size();
+          break;
+        default:
+          TSError("%s: configuration variable '%s' is of an unsupported type", PLUGIN_NAME, opt_name.c_str());
+          return false;
+          break;
+        }
+        if (cur) {
+          TSDebug(PLUGIN_NAME, "Overridable config %s=%s", opt_name.c_str(), opt_val.c_str());
+          cur->key = key;
+          cur->type = type;
+          cur->next = NULL;
+          if (NULL == last_override) {
+            _first_override = cur;
+          } else {
+            last_override->next = cur;
+          }
+          last_override = cur;
+        }
+      } else {
+        TSError("Unknown options: %s", opt.c_str());
+      }
+    }
+    start = opt.find_first_of("@", pos2);
+  }
+
+  return true;
+}
+
+// Compile and study the regular expression.
+int
+RemapRegex::compile(const char** error, int* erroffset)
+{
+  char* str;
+  int ccount;
+
+  _rex = pcre_compile(_rex_string,          // the pattern
+                      _options,             // options
+                      error,                // for error message
+                      erroffset,            // for error offset
+                      NULL);                // use default character tables
+
+  if (NULL == _rex) {
+    return -1;
+  }
+
+  _extra = pcre_study(_rex, 0, error);
+  if ((_extra == NULL) && (*error != 0)) {
+    return -1;
+  }
+
+  if (pcre_fullinfo(_rex, _extra, PCRE_INFO_CAPTURECOUNT, &ccount) != 0) {
+    return -1;
+  }
+
+  // Get some info for the string substitutions
+  str = _subst;
+  _num_subs = 0;
+
+  while (str && *str) {
+    if ('$' == *str) {
+      int ix = -1;
+
+      if (isdigit(*(str+1))) {
+        ix = *(str + 1) - '0';
+      } else {
+        switch (*(str + 1)) {
+        case 'h':
+          ix = SUB_HOST;
+          break;
+        case 'f':
+          ix = SUB_FROM_HOST;
+          break;
+        case 't':
+          ix = SUB_TO_HOST;
+          break;
+        case 'p':
+          ix = SUB_PORT;
+          break;
+        case 's':
+          ix = SUB_SCHEME;
+          break;
+        case 'P':
+          ix = SUB_PATH;
+          break;
+        case 'l':
+          ix = SUB_LOWER_PATH;
+          break;
+        case 'q':
+          ix = SUB_QUERY;
+          break;
+        case 'm':
+          ix = SUB_MATRIX;
+          break;
+        case 'i':
+          ix = SUB_CLIENT_IP;
+          break;
+        default:
+          break;
+        }
+      }
+
+      if (ix > -1) {
+        if ((ix < 10) && (ix > ccount)) {
+          TSDebug(PLUGIN_NAME, "Trying to use unavailable substitution, check the regex!");
+          return -1; // No substitutions available other than $0
+        }
+
+        _sub_ix[_num_subs] = ix;
+        _sub_pos[_num_subs] = (str - _subst);
+        str += 2;
+        ++_num_subs;
+      } else { // Not a valid substitution character, so just ignore it
+        ++str;
+      }
+    } else {
+      ++str;
+    }
+  }
+  return 0;
+}
+
+// Get the lengths of the matching string(s), taking into account variable substitutions.
+// We also calculate a total length for the new string, which is the max length the
+// substituted string can have (use it to allocate a buffer before calling substitute() ).
+int
+RemapRegex::get_lengths(const int ovector[], int lengths[], TSRemapRequestInfo *rri, UrlComponents *req_url)
+{
+  int len = _subst_len + 1;   // Bigger then necessary
+
+  for (int i=0; i < _num_subs; i++) {
+    int ix = _sub_ix[i];
+
+    if (ix < 10) {
+      lengths[ix] = ovector[2*ix+1] - ovector[2*ix]; // -1 - -1 == 0
+      len += lengths[ix];
+    } else {
+      int tmp_len;
+
+      switch (ix) {
+      case SUB_HOST:
+        len += req_url->host_len;
+        break;
+      case SUB_FROM_HOST:
+        TSUrlHostGet(rri->requestBufp, rri->mapFromUrl, &tmp_len);
+        len += tmp_len;
+        break;
+      case SUB_TO_HOST:
+        TSUrlHostGet(rri->requestBufp, rri->mapToUrl, &tmp_len);
+        len += tmp_len;
+        break;
+      case SUB_PORT:
+        len += 6; // One extra for snprintf()
+        break;
+      case SUB_SCHEME:
+        len += req_url->scheme_len;
+        break;
+      case SUB_PATH:
+      case SUB_LOWER_PATH:
+        len += req_url->path_len;
+        break;
+      case SUB_QUERY:
+        len += req_url->query_len;
+        break;
+      case SUB_MATRIX:
+        len += req_url->matrix_len;
+        break;
+      case SUB_CLIENT_IP:
+        len += 15; // Allow for 255.255.255.255
+        break;
+      default:
+        break;
+      }
+    }
+  }
+
+  return len;
+}
+
+// Perform substitution on the $0 - $9 variables in the "src" string. $0 is the entire
+// regex that was matches, while $1 - $9 are the corresponding groups. Return the final
+// length of the string as written to dest (not including the trailing '0').
+int
+RemapRegex::substitute(char dest[], const char *src, const int ovector[], const int lengths[],
+                       TSRemapRequestInfo *rri, UrlComponents *req_url, bool lowercase_substitutions)
+{
+  if (_num_subs > 0) {
+    char* p1 = dest;
+    char* p2 = _subst;
+    int prev = 0;
+
+    for (int i=0; i < _num_subs; i++) {
+      char *start = p1;
+      int ix = _sub_ix[i];
+
+      memcpy(p1, p2, _sub_pos[i] - prev);
+      p1 += (_sub_pos[i] - prev);
+      if (ix < 10) {
+        memcpy(p1, src + ovector[2*ix], lengths[ix]);
+        p1 += lengths[ix];
+      } else {
+        const char* str = NULL;
+        int len = 0;
+
+        switch (ix) {
+        case SUB_HOST:
+          str = req_url->host;
+          len = req_url->host_len;
+          break;
+        case SUB_FROM_HOST:
+          str = TSUrlHostGet(rri->requestBufp, rri->mapFromUrl, &len);
+          break;
+        case SUB_TO_HOST:
+          str = TSUrlHostGet(rri->requestBufp, rri->mapToUrl, &len);
+          break;
+        case SUB_PORT:
+          p1 += snprintf(p1, 6, "%u", req_url->port);
+          break;
+        case SUB_SCHEME:
+          str = req_url->scheme;
+          len = req_url->scheme_len;
+          break;
+        case SUB_PATH:
+        case SUB_LOWER_PATH:
+          str = req_url->path;
+          len = req_url->path_len;
+          break;
+        case SUB_QUERY:
+          str = req_url->query;
+          len = req_url->query_len;
+          break;
+        case SUB_MATRIX:
+          str = req_url->matrix;
+          len = req_url->matrix_len;
+          break;
+        case SUB_CLIENT_IP:
+          {
+            // TODO: Finish implementing with the addr from above
+            // p1 += snprintf(p1, 15, "%d.%d.%d.%d", ip[0], ip[1], ip[2], ip[3]);
+          }
+          break;
+        default:
+          break;
+        }
+        // If one of the rules fetched a read-only string, copy it in.
+        if (str && len > 0) {
+          memcpy(p1, str, len);
+          p1 += len;
+        }
+      }
+      p2 += (_sub_pos[i] - prev + 2);
+      prev = _sub_pos[i] + 2;
+
+      if (lowercase_substitutions == true || ix == SUB_LOWER_PATH) {
+        while (start < p1) {
+          *start = tolower(*start);
+          start++;
+        }
+      }
+    }
+
+    memcpy(p1, p2, _subst_len - (p2 - _subst));
+    p1 += _subst_len - (p2 - _subst);
+    *p1 = 0; // Make sure it's NULL terminated (for safety).
+    return p1 - dest;
+  } else {
+    memcpy(dest, _subst, _subst_len + 1); // No substitutions in the string, copy it all
+    return _subst_len;
+  }
+
+  return 0; // Shouldn't happen.
+}
+
+
+// Hold one remap instance
+struct RemapInstance
+{
+  RemapInstance() :
+    first(NULL), last(NULL), profile(false), method(false), query_string(true),
+    matrix_params(false), hits(0), misses(0),
+    filename("unknown")
+  { }
+
+  RemapRegex* first;
+  RemapRegex* last;
+  bool profile;
+  bool method;
+  bool query_string;
+  bool matrix_params;
+  int hits;
+  int misses;
+  std::string filename;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// Helpers for memory management (to make sure pcre uses the TS APIs).
+//
+inline void*
+ts_malloc(size_t s)
+{
+  return TSmalloc(s);
+}
+
+inline void
+ts_free(void *s)
+{
+  return TSfree(s);
+}
+
+void
+setup_memory_allocation()
+{
+  pcre_malloc = &ts_malloc;
+  pcre_free = &ts_free;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the plugin.
+//
+TSReturnCode
+TSRemapInit(TSRemapInterface* api_info, char *errbuf, int errbuf_size)
+{
+  if (!api_info) {
+    strncpy(errbuf, "[tsremap_init] - Invalid TSRemapInterface argument", errbuf_size - 1);
+    return TS_ERROR;
+  }
+
+  if (api_info->tsremap_version < TSREMAP_VERSION) {
+    snprintf(errbuf, errbuf_size - 1, "[TSRemapInit] - Incorrect API version %ld.%ld",
+             api_info->tsremap_version >> 16, (api_info->tsremap_version & 0xffff));
+    return TS_ERROR;
+  }
+
+  setup_memory_allocation();
+  TSDebug(PLUGIN_NAME, "Plugin is successfully initialized");
+  return TS_SUCCESS;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// We don't have any specific "instances" here, at least not yet.
+//
+TSReturnCode
+TSRemapNewInstance(int argc, char* argv[], void** ih, char* /* errbuf ATS_UNUSED */, int /* errbuf_sizeATS_UNUSED */)
+{
+  const char* error;
+  int erroffset;
+  RemapInstance* ri = new RemapInstance();
+
+  std::ifstream f;
+  int lineno = 0;
+  int count = 0;
+
+  *ih = (void*)ri;
+  if (ri == NULL) {
+    TSError("Unable to create remap instance");
+    return TS_ERROR;
+  }
+
+  if (argc < 3) {
+    TSError("%s missing configuration file", PLUGIN_NAME);
+    return TS_ERROR;
+  }
+
+  // Really simple (e.g. basic) config parser
+  for (int i = 3; i < argc; ++i) {
+    if (strncmp(argv[i], "profile", 7) == 0) {
+      ri->profile = true;
+    } else if (strncmp(argv[i], "no-profile", 10) == 0) {
+      ri->profile = false;
+    } else if (strncmp(argv[i], "method", 6) == 0) {
+      ri->method = true;
+    } else if (strncmp(argv[i], "no-method", 9) == 0) {
+      ri->method = true;
+    } else if (strncmp(argv[i], "query-string", 12) == 0) {
+      ri->query_string = true;
+    } else if (strncmp(argv[i], "no-query-string", 15) == 0) {
+      ri->query_string = false;
+    } else if (strncmp(argv[i], "matrix-parameters", 15) == 0) {
+      ri->matrix_params = true;
+    } else if (strncmp(argv[i], "no-matrix-parameters", 18) == 0) {
+      ri->matrix_params = false;
+    } else {
+      TSError("%s: invalid option '%s'", PLUGIN_NAME, argv[i]);
+    }
+  }
+
+  if (*argv[2] == '/') {
+    // Absolute path, just use it.
+    ri->filename = argv[2];
+  } else {
+    // Relative path. Make it relative to the configuration directory.
+    ri->filename = TSConfigDirGet();
+    ri->filename += "/";
+    ri->filename += argv[2];
+  }
+
+  if (0 != access(ri->filename.c_str(), R_OK)) {
+    TSError("%s: failed to access %s: %s", PLUGIN_NAME, ri->filename.c_str(), strerror(errno));
+    return TS_ERROR;
+  }
+
+  f.open((ri->filename).c_str(), std::ios::in);
+  if (!f.is_open()) {
+    TSError("%s: unable to open %s", PLUGIN_NAME, (ri->filename).c_str());
+    return TS_ERROR;
+  }
+  TSDebug(PLUGIN_NAME, "Loading regular expressions from %s", (ri->filename).c_str());
+
+  while (!f.eof()) {
+    std::string line, regex, subst, options;
+    std::string::size_type pos1, pos2;
+
+    getline(f, line);
+    ++lineno;
+    if (line.empty()) {
+      continue;
+    }
+
+    pos1 = line.find_first_not_of(" \t\n");
+    if (pos1 != std::string::npos) {
+
+      if (line[pos1] == '#') {
+        continue;  // Skip comment lines
+      }
+
+      pos2 = line.find_first_of(" \t\n", pos1);
+      if (pos2 != std::string::npos) {
+        regex = line.substr(pos1, pos2-pos1);
+        pos1 = line.find_first_not_of(" \t\n#", pos2);
+        if (pos1 != std::string::npos) {
+          pos2 = line.find_first_of(" \t\n", pos1);
+          if (pos2 == std::string::npos)
+            pos2 = line.length();
+          subst = line.substr(pos1, pos2-pos1);
+          pos1 = line.find_first_not_of(" \t\n#", pos2);
+          if (pos1 != std::string::npos) {
+            pos2 = line.find_first_of("\n#", pos1);
+            if (pos2 == std::string::npos)
+              pos2 = line.length();
+            options = line.substr(pos1, pos2-pos1);
+          }
+        }
+      }
+    }
+
+    if (regex.empty()) {
+      // No regex found on this line
+      TSError("no regexp found in %s: line %d", (ri->filename).c_str(), lineno);
+      continue;
+    }
+    if (subst.empty() && options.empty()) {
+      // No substitution found on this line (and no options)
+      TSError("no substitution string found in %s: line %d", (ri->filename).c_str(), lineno);
+      continue;
+    }
+
+    // Got a regex and substitution string
+    RemapRegex* cur = new RemapRegex();
+
+    if (!cur->initialize(regex, subst, options)) {
+      TSError("%s: can't create a new regex remap rule", PLUGIN_NAME);
+      delete cur;
+      continue;
+    }
+
+    if (cur->compile(&error, &erroffset) < 0) {
+      TSError("%s: PCRE failed in %s (line %d) at offset %d: %s",
+          PLUGIN_NAME, (ri->filename).c_str(), lineno, erroffset, error);
+      delete(cur);
+    } else {
+      TSDebug(PLUGIN_NAME, "Added regex=%s with subs=%s and options `%s'",
+               regex.c_str(), subst.c_str(), options.c_str());
+      cur->set_order(++count);
+      if (ri->first == NULL) {
+        ri->first = cur;
+      } else {
+        ri->last->set_next(cur);
+      }
+      ri->last = cur;
+    }
+
+  }
+
+  // Make sure we got something...
+  if (ri->first == NULL) {
+    TSError("%s: no regular expressions from the maps", PLUGIN_NAME);
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+
+
+void
+TSRemapDeleteInstance(void* ih)
+{
+  RemapInstance* ri = static_cast<RemapInstance*>(ih);
+  RemapRegex* re;
+  RemapRegex* tmp;
+
+  if (ri->profile) {
+    char now[64];
+    const ink_time_t tim = time(NULL);
+
+    if (ink_ctime_r(&tim, now)) {
+      now[strlen(now) - 1] = '\0';
+    } else {
+      memcpy(now, "unknown time", 12);
+      *(now + 12) = '\0';
+    }
+
+    fprintf(stderr, "[%s]: Profiling information for regex_remap file `%s':\n", now, (ri->filename).c_str());
+    fprintf(stderr, "[%s]:    Total hits (matches): %d\n", now, ri->hits);
+    fprintf(stderr, "[%s]:    Total missed (no regex matches): %d\n", now, ri->misses);
+
+    if (ri->hits > 0) { // Avoid divide by zeros...
+      int ix = 1;
+
+      re = ri->first;
+      while (re) {
+        re->print(ix, ri->hits, now);
+        re = re->next();
+        ++ix;
+      }
+    }
+  }
+
+  re = ri->first;
+  while (re) {
+    RemapRegex::Override *override = re->get_overrides();
+
+    while (override) {
+      RemapRegex::Override* tmp = override;
+
+      if (TS_RECORDDATATYPE_STRING == override->type) {
+        TSfree(override->data.rec_string);
+      }
+      override = override->next;
+      delete tmp;
+    }
+    tmp = re;
+    re = re->next();
+    delete tmp;
+  }
+
+  delete ri;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// This is the main "entry" point for the plugin, called for every request.
+//
+TSRemapStatus
+TSRemapDoRemap(void* ih, TSHttpTxn txnp, TSRemapRequestInfo *rri)
+{
+  if (NULL == ih) {
+    TSDebug(PLUGIN_NAME, "Falling back to default URL on regex remap without rules");
+    return TSREMAP_NO_REMAP;
+  }
+
+  // Populate the request url
+  UrlComponents req_url;
+  req_url.populate(rri);
+
+  RemapInstance* ri = (RemapInstance*)ih;
+  int ovector[OVECCOUNT];
+  int lengths[OVECCOUNT/2 + 1];
+  int dest_len;
+  TSRemapStatus retval = TSREMAP_DID_REMAP;
+  RemapRegex* re = ri->first;
+  int match_len = 0;
+  char *match_buf;
+
+  match_buf = (char*)alloca(req_url.url_len + 32);
+
+  if (ri->method) { // Prepend the URI path or URL with the HTTP method
+    TSMBuffer mBuf;
+    TSMLoc reqHttpHdrLoc;
+    const char *method;
+
+    // Note that Method can not be longer than 16 bytes, or we'll simply truncate it
+    if (TS_SUCCESS == TSHttpTxnClientReqGet(static_cast<TSHttpTxn>(txnp), &mBuf, &reqHttpHdrLoc)) {
+      method = TSHttpHdrMethodGet(mBuf, reqHttpHdrLoc, &match_len);
+      if (method && (match_len > 0)) {
+        if (match_len > 16) {
+          match_len = 16;
+        }
+        memcpy(match_buf, method, match_len);
+      }
+    }
+  }
+
+  *(match_buf + match_len) = '/';
+  match_len++;
+  if (req_url.path && req_url.path_len > 0) {
+    memcpy(match_buf + match_len, req_url.path, req_url.path_len);
+    match_len += (req_url.path_len);
+  }
+
+  if (ri->matrix_params && req_url.matrix && req_url.matrix_len > 0) {
+    *(match_buf + match_len) = ';';
+    memcpy(match_buf + match_len + 1 , req_url.matrix, req_url.matrix_len);
+    match_len += (req_url.matrix_len + 1);
+  }
+
+  if (ri->query_string  && req_url.query && req_url.query_len > 0) {
+    *(match_buf + match_len) = '?';
+    memcpy(match_buf + match_len + 1 , req_url.query, req_url.query_len);
+    match_len += (req_url.query_len + 1);
+  }
+  match_buf[match_len] = '\0'; // NULL terminate the match string
+  TSDebug(PLUGIN_NAME, "Target match string is `%s'", match_buf);
+
+  // Apply the regular expressions, in order. First one wins.
+  while (re) {
+    // Since we check substitutions on parse time, we don't need to reset ovector
+    if (re->is_simple() || (re->match(match_buf, match_len, ovector) != -1)) {
+      int new_len = re->get_lengths(ovector, lengths, rri, &req_url);
+
+      // Set timeouts
+      if (re->active_timeout_option() > (-1)) {
+        TSDebug(PLUGIN_NAME, "Setting active timeout to %d", re->active_timeout_option());
+        TSHttpTxnActiveTimeoutSet(txnp, re->active_timeout_option());
+      }
+      if (re->no_activity_timeout_option() > (-1)) {
+        TSDebug(PLUGIN_NAME, "Setting no activity timeout to %d", re->no_activity_timeout_option());
+        TSHttpTxnNoActivityTimeoutSet(txnp, re->no_activity_timeout_option());
+      }
+      if (re->connect_timeout_option() > (-1)) {
+        TSDebug(PLUGIN_NAME, "Setting connect timeout to %d", re->connect_timeout_option());
+        TSHttpTxnConnectTimeoutSet(txnp, re->connect_timeout_option());
+      }
+      if (re->dns_timeout_option() > (-1)) {
+        TSDebug(PLUGIN_NAME, "Setting DNS timeout to %d", re->dns_timeout_option());
+        TSHttpTxnDNSTimeoutSet(txnp, re->dns_timeout_option());
+      }
+      bool lowercase_substitutions = false;
+      if (re->lowercase_substitutions_option() == true) {
+        TSDebug(PLUGIN_NAME, "Setting lowercasing substitutions on");
+        lowercase_substitutions = true;
+      }
+
+      RemapRegex::Override *override = re->get_overrides();
+
+      while (override) {
+        switch (override->type) {
+        case TS_RECORDDATATYPE_INT:
+          TSHttpTxnConfigIntSet(txnp, override->key, override->data.rec_int);
+          TSDebug(PLUGIN_NAME, "Setting config id %d to `%" PRId64 "'", override->key, override->data.rec_int);
+          break;
+        case TS_RECORDDATATYPE_FLOAT:
+          TSHttpTxnConfigFloatSet(txnp, override->key, override->data.rec_float);
+          TSDebug(PLUGIN_NAME, "Setting config id %d to `%f'", override->key, override->data.rec_float);
+          break;
+        case TS_RECORDDATATYPE_STRING:
+          TSHttpTxnConfigStringSet(txnp, override->key, override->data.rec_string, override->data_len);
+          TSDebug(PLUGIN_NAME, "Setting config id %d to `%s'", override->key, override->data.rec_string);
+          break;
+        default:
+          break; // Error ?
+        }
+        override = override->next;
+      }
+
+      // Update profiling if requested
+      if (ri->profile) {
+        re->increment();
+        ink_atomic_increment(&(ri->hits), 1);
+      }
+
+      if (new_len > 0) {
+        char* dest;
+
+        dest = (char*)alloca(new_len+8);
+        dest_len = re->substitute(dest, match_buf, ovector, lengths, rri, &req_url, lowercase_substitutions);
+
+        TSDebug(PLUGIN_NAME, "New URL is estimated to be %d bytes long, or less", new_len);
+        TSDebug(PLUGIN_NAME, "New URL is %s (length %d)", dest, dest_len);
+        TSDebug(PLUGIN_NAME, "    matched rule %d [%s]", re->order(), re->regex());
+
+        // Check for a quick response, if the status option is set
+        if (re->status_option() > 0) {
+          if (re->status_option() != TS_HTTP_STATUS_MOVED_PERMANENTLY &&
+              re->status_option() != TS_HTTP_STATUS_MOVED_TEMPORARILY) {
+            // Don't set the URL / Location for this.
+            TSHttpTxnSetHttpRetStatus(txnp, re->status_option());
+            break;
+          }
+
+          TSDebug(PLUGIN_NAME, "Redirecting URL, status=%d", re->status_option());
+          TSHttpTxnSetHttpRetStatus(txnp, re->status_option());
+          rri->redirect = 1;
+        }
+
+        // Now parse the new URL, which can also be the redirect URL
+        if (dest_len > 0) {
+          const char *start = dest;
+
+          // Setup the new URL
+          if (TS_PARSE_ERROR == TSUrlParse(rri->requestBufp, rri->requestUrl, &start, start + dest_len)) {
+            TSHttpTxnSetHttpRetStatus(txnp, TS_HTTP_STATUS_INTERNAL_SERVER_ERROR);
+            TSError("can't parse substituted URL string");
+          }
+        }
+        break;
+      }
+    }
+
+    // Try the next regex
+    re = re->next();
+    if (re == NULL) {
+      retval = TSREMAP_NO_REMAP; // No match
+      if (ri->profile) {
+        ink_atomic_increment(&(ri->misses), 1);
+      }
+    }
+  }
+
+  return retval;
+}
+
+
+
+/*
+  local variables:
+  mode: C++
+  indent-tabs-mode: nil
+  c-basic-offset: 2
+  c-comment-only-line-offset: 0
+  c-file-offsets: ((statement-block-intro . +)
+  (label . 0)
+  (statement-cont . +)
+  (innamespace . 0))
+  end:
+
+  Indent with: /usr/bin/indent -ncs -nut -npcs -l 120 logstats.cc
+*/
diff --git a/plugins/stats_over_http/Makefile.am b/plugins/stats_over_http/Makefile.am
new file mode 100644
index 00000000..a9c04d7d
--- /dev/null
+++ b/plugins/stats_over_http/Makefile.am
@@ -0,0 +1,21 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = stats_over_http.la
+stats_over_http_la_SOURCES = stats_over_http.c
+stats_over_http_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
diff --git a/plugins/stats_over_http/Makefile.in b/plugins/stats_over_http/Makefile.in
new file mode 100644
index 00000000..a82fcc77
--- /dev/null
+++ b/plugins/stats_over_http/Makefile.in
@@ -0,0 +1,935 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+DIST_COMMON = $(top_srcdir)/build/plugins.mk $(srcdir)/Makefile.in \
+	$(srcdir)/Makefile.am $(top_srcdir)/build/aux/depcomp README
+subdir = plugins/stats_over_http
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+	$(top_srcdir)/build/ltversion.m4 \
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+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(pkglibdir)"
+LTLIBRARIES = $(pkglib_LTLIBRARIES)
+stats_over_http_la_LIBADD =
+am_stats_over_http_la_OBJECTS = stats_over_http.lo
+stats_over_http_la_OBJECTS = $(am_stats_over_http_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+stats_over_http_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+	$(AM_CFLAGS) $(CFLAGS) $(stats_over_http_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(stats_over_http_la_SOURCES)
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+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/stats_over_http/README b/plugins/stats_over_http/README
new file mode 100644
index 00000000..2624b52e
--- /dev/null
+++ b/plugins/stats_over_http/README
@@ -0,0 +1,30 @@
+This plugin implements an HTTP interface to all Traffic Server statistics. The
+metrics returned are in a JSON format, for easy processing. This plugin is now
+part of the standard ATS build process, and should be available after install.
+
+To enable this plugin, add to the plugin.conf file:
+
+  stats_over_http.so
+
+
+After starting Traffic Server, the JSON metrics are now available on the
+default URL:
+
+    http://host:port/_stats
+
+
+where host and port is the hostname/IP and port number of the server. You can
+optionally modify the path to use, and this is highly recommended in a public
+facing server. For example:
+
+    stats_over_http.so 81c075bc0cca1435ea899ba4ad72766b
+
+
+and the URL would then be e.g.
+
+    https://host:port/81c075bc0cca1435ea899ba4ad72766b
+
+
+
+This is weak security at best, since the secret could possibly leak if you are
+careless and send it over clear text.
diff --git a/plugins/stats_over_http/stats_over_http.c b/plugins/stats_over_http/stats_over_http.c
new file mode 100644
index 00000000..80455baa
--- /dev/null
+++ b/plugins/stats_over_http/stats_over_http.c
@@ -0,0 +1,273 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/* stats.c:  expose traffic server stats over http
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <limits.h>
+#include <ts/ts.h>
+#include <string.h>
+
+#include <inttypes.h>
+
+#include "ink_defs.h"
+
+/* global holding the path used for access to this JSON data */
+static const char* url_path = "_stats";
+static int url_path_len;
+
+typedef struct stats_state_t
+{
+  TSVConn net_vc;
+  TSVIO read_vio;
+  TSVIO write_vio;
+
+  TSIOBuffer req_buffer;
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  int output_bytes;
+  int body_written;
+} stats_state;
+
+static void
+stats_cleanup(TSCont contp, stats_state * my_state)
+{
+  if (my_state->req_buffer) {
+    TSIOBufferDestroy(my_state->req_buffer);
+    my_state->req_buffer = NULL;
+  }
+
+  if (my_state->resp_buffer) {
+    TSIOBufferDestroy(my_state->resp_buffer);
+    my_state->resp_buffer = NULL;
+  }
+  TSVConnClose(my_state->net_vc);
+  TSfree(my_state);
+  TSContDestroy(contp);
+}
+
+static void
+stats_process_accept(TSCont contp, stats_state * my_state)
+{
+
+  my_state->req_buffer = TSIOBufferCreate();
+  my_state->resp_buffer = TSIOBufferCreate();
+  my_state->resp_reader = TSIOBufferReaderAlloc(my_state->resp_buffer);
+  my_state->read_vio = TSVConnRead(my_state->net_vc, contp, my_state->req_buffer, INT64_MAX);
+}
+
+static int
+stats_add_data_to_resp_buffer(const char *s, stats_state * my_state)
+{
+  int s_len = strlen(s);
+
+  TSIOBufferWrite(my_state->resp_buffer, s, s_len);
+
+  return s_len;
+}
+
+static const char RESP_HEADER[] =
+  "HTTP/1.0 200 Ok\r\nContent-Type: text/javascript\r\nCache-Control: no-cache\r\n\r\n";
+
+static int
+stats_add_resp_header(stats_state * my_state)
+{
+  return stats_add_data_to_resp_buffer(RESP_HEADER, my_state);
+}
+
+static void
+stats_process_read(TSCont contp, TSEvent event, stats_state * my_state)
+{
+  TSDebug("istats", "stats_process_read(%d)", event);
+  if (event == TS_EVENT_VCONN_READ_READY) {
+    my_state->output_bytes = stats_add_resp_header(my_state);
+    TSVConnShutdown(my_state->net_vc, 1, 0);
+    my_state->write_vio = TSVConnWrite(my_state->net_vc, contp, my_state->resp_reader, INT64_MAX);
+  } else if (event == TS_EVENT_ERROR) {
+    TSError("stats_process_read: Received TS_EVENT_ERROR\n");
+  } else if (event == TS_EVENT_VCONN_EOS) {
+    /* client may end the connection, simply return */
+    return;
+  } else if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+    TSError("stats_process_read: Received TS_EVENT_NET_ACCEPT_FAILED\n");
+  } else {
+    printf("Unexpected Event %d\n", event);
+    TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+#define APPEND(a) my_state->output_bytes += stats_add_data_to_resp_buffer(a, my_state)
+#define APPEND_STAT(a, fmt, v) do { \
+  char b[256]; \
+  if(snprintf(b, sizeof(b), "\"%s\": \"" fmt "\",\n", a, v) < sizeof(b)) \
+    APPEND(b); \
+} while(0)
+
+static void
+json_out_stat(TSRecordType rec_type ATS_UNUSED, void *edata, int registered ATS_UNUSED,
+              const char *name, TSRecordDataType data_type,
+              TSRecordData *datum) {
+  stats_state *my_state = edata;
+
+  switch(data_type) {
+  case TS_RECORDDATATYPE_COUNTER:
+    APPEND_STAT(name, "%" PRIu64, datum->rec_counter); break;
+  case TS_RECORDDATATYPE_INT:
+    APPEND_STAT(name, "%" PRIu64, datum->rec_int); break;
+  case TS_RECORDDATATYPE_FLOAT:
+    APPEND_STAT(name, "%f", datum->rec_float); break;
+  case TS_RECORDDATATYPE_STRING:
+    APPEND_STAT(name, "%s", datum->rec_string); break;
+  default:
+    TSDebug("istats", "unknown type for %s: %d", name, data_type);
+    break;
+  }
+}
+static void
+json_out_stats(stats_state * my_state)
+{
+  const char *version;
+  APPEND("{ \"global\": {\n");
+
+  TSRecordDump((TSRecordType)(TS_RECORDTYPE_PLUGIN | TS_RECORDTYPE_NODE | TS_RECORDTYPE_PROCESS), json_out_stat, my_state);
+  version = TSTrafficServerVersionGet();
+  APPEND("\"server\": \"");
+  APPEND(version);
+  APPEND("\"\n");
+  APPEND("  }\n}\n");
+}
+
+static void
+stats_process_write(TSCont contp, TSEvent event, stats_state * my_state)
+{
+  if (event == TS_EVENT_VCONN_WRITE_READY) {
+    if (my_state->body_written == 0) {
+      TSDebug("istats", "plugin adding response body");
+      my_state->body_written = 1;
+      json_out_stats(my_state);
+      TSVIONBytesSet(my_state->write_vio, my_state->output_bytes);
+    }
+    TSVIOReenable(my_state->write_vio);
+  } else if (TS_EVENT_VCONN_WRITE_COMPLETE) {
+    stats_cleanup(contp, my_state);
+  } else if (event == TS_EVENT_ERROR) {
+    TSError("stats_process_write: Received TS_EVENT_ERROR\n");
+  } else {
+    TSReleaseAssert(!"Unexpected Event");
+  }
+}
+
+static int
+stats_dostuff(TSCont contp, TSEvent event, void *edata)
+{
+  stats_state *my_state = TSContDataGet(contp);
+  if (event == TS_EVENT_NET_ACCEPT) {
+    my_state->net_vc = (TSVConn) edata;
+    stats_process_accept(contp, my_state);
+  } else if (edata == my_state->read_vio) {
+    stats_process_read(contp, event, my_state);
+  } else if (edata == my_state->write_vio) {
+    stats_process_write(contp, event, my_state);
+  } else {
+    TSReleaseAssert(!"Unexpected Event");
+  }
+  return 0;
+}
+
+static int
+stats_origin(TSCont contp ATS_UNUSED, TSEvent event ATS_UNUSED, void *edata)
+{
+  TSCont icontp;
+  stats_state *my_state;
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  TSMBuffer reqp;
+  TSMLoc hdr_loc = NULL, url_loc = NULL;
+  TSEvent reenable = TS_EVENT_HTTP_CONTINUE;
+
+  TSDebug("istats", "in the read stuff");
+ 
+  if (TSHttpTxnClientReqGet(txnp, &reqp, &hdr_loc) != TS_SUCCESS)
+    goto cleanup;
+  
+  if (TSHttpHdrUrlGet(reqp, hdr_loc, &url_loc) != TS_SUCCESS)
+    goto cleanup;
+  
+  int path_len = 0;
+  const char* path = TSUrlPathGet(reqp,url_loc,&path_len);
+  TSDebug("istats","Path: %.*s",path_len,path);
+  
+  if (! (path_len != 0 && path_len == url_path_len  && !memcmp(path,url_path,url_path_len)) ) {
+    goto notforme;
+  }
+  
+  TSSkipRemappingSet(txnp,1); //not strictly necessary, but speed is everything these days
+
+  /* This is us -- register our intercept */
+  TSDebug("istats", "Intercepting request");
+
+  icontp = TSContCreate(stats_dostuff, TSMutexCreate());
+  my_state = (stats_state *) TSmalloc(sizeof(*my_state));
+  memset(my_state, 0, sizeof(*my_state));
+  TSContDataSet(icontp, my_state);
+  TSHttpTxnIntercept(icontp, txnp);
+  goto cleanup;
+
+ notforme:
+
+ cleanup:
+#if (TS_VERSION_NUMBER < 2001005)
+  if(path) TSHandleStringRelease(reqp, url_loc, path);
+#endif
+  if(url_loc) TSHandleMLocRelease(reqp, hdr_loc, url_loc);
+  if(hdr_loc) TSHandleMLocRelease(reqp, TS_NULL_MLOC, hdr_loc);
+
+  TSHttpTxnReenable(txnp, reenable);
+  return 0;
+}
+
+void
+TSPluginInit(int argc, const char *argv[])
+{
+  TSPluginRegistrationInfo info;
+
+  info.plugin_name = "stats";
+  info.vendor_name = "Apache Software Foundation";
+  info.support_email = "dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_2_0, &info) != TS_SUCCESS)
+    TSError("Plugin registration failed. \n");
+
+  if (argc > 1) {
+    url_path = TSstrdup(argv[1] + ('/' == argv[1][0] ? 1 : 0)); /* Skip leading / */
+  }
+  url_path_len = strlen(url_path);
+
+  /* Create a continuation with a mutex as there is a shared global structure
+     containing the headers to add */
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, TSContCreate(stats_origin, NULL));
+  TSDebug("istats", "stats module registered");
+}
diff --git a/plugins/tcpinfo/Makefile.am b/plugins/tcpinfo/Makefile.am
new file mode 100644
index 00000000..ae1078b5
--- /dev/null
+++ b/plugins/tcpinfo/Makefile.am
@@ -0,0 +1,22 @@
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+include $(top_srcdir)/build/plugins.mk
+
+pkglib_LTLIBRARIES = tcpinfo.la
+tcpinfo_la_SOURCES = tcpinfo.cc
+tcpinfo_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+
diff --git a/plugins/tcpinfo/Makefile.in b/plugins/tcpinfo/Makefile.in
new file mode 100644
index 00000000..9c12a1ef
--- /dev/null
+++ b/plugins/tcpinfo/Makefile.in
@@ -0,0 +1,934 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# plugins.mk: Common automake build variables for Traffic Server plugins.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
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+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+TS_PLUGIN_LDFLAGS = \
+  -module \
+  -shared \
+  -avoid-version
+
+TS_PLUGIN_CPPFLAGS = \
+  -D__STDC_LIMIT_MACROS=1 \
+  -D__STDC_FORMAT_MACROS=1 \
+  -I$(top_builddir)/proxy/api \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_builddir)/lib/ts \
+  -I$(top_srcdir)/lib/ts
+
+
+# Provide a default AM_CPPFLAGS. Automake handles this correctly, but libtool
+# throws an error if we try to do the same with AM_LDFLAGS. Hence, we provide
+# TS_PLUGIN variables that can be used to construct the necessary automake
+# syntax.
+AM_CPPFLAGS = $(TS_PLUGIN_CPPFLAGS)
+pkglib_LTLIBRARIES = tcpinfo.la
+tcpinfo_la_SOURCES = tcpinfo.cc
+tcpinfo_la_LDFLAGS = $(TS_PLUGIN_LDFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am $(top_srcdir)/build/plugins.mk $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign plugins/tcpinfo/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign plugins/tcpinfo/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/plugins.mk:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+install-pkglibLTLIBRARIES: $(pkglib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkglibdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(pkglibdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(pkglibdir)"; \
+	}
+
+uninstall-pkglibLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkglib_LTLIBRARIES)'; test -n "$(pkglibdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(pkglibdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$f"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+tcpinfo.la: $(tcpinfo_la_OBJECTS) $(tcpinfo_la_DEPENDENCIES) $(EXTRA_tcpinfo_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(tcpinfo_la_LINK) -rpath $(pkglibdir) $(tcpinfo_la_OBJECTS) $(tcpinfo_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tcpinfo.Plo@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(pkglibdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pkglibLTLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-pkglibLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkglibLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-pkglibLTLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pkglibLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkglibLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/plugins/tcpinfo/tcpinfo.cc b/plugins/tcpinfo/tcpinfo.cc
new file mode 100644
index 00000000..481f553d
--- /dev/null
+++ b/plugins/tcpinfo/tcpinfo.cc
@@ -0,0 +1,431 @@
+/** @file
+
+  tcpinfo: A plugin to log TCP session information.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ts/ts.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <arpa/inet.h>
+
+#include "ink_defs.h"
+
+#if defined(TCP_INFO) && defined(HAVE_STRUCT_TCP_INFO)
+#define TCPI_PLUGIN_SUPPORTED 1
+#endif
+
+#define TCPI_HOOK_SSN_START     0x01u
+#define TCPI_HOOK_TXN_START     0x02u
+#define TCPI_HOOK_SEND_RESPONSE 0x04u
+#define TCPI_HOOK_SSN_CLOSE     0x08u
+#define TCPI_HOOK_TXN_CLOSE     0x10u
+
+// Log format headers. These are emitted once at the start of a log file. Note that we
+// carefully order the fields so the field ordering is compatible. This lets you change
+// the verbosity without breaking a perser that is moderately robust.
+static const char * tcpi_headers[] = {
+  "timestamp event client server rtt",
+  "timestamp event client server rtt rttvar last_sent last_recv "
+    "snd_ssthresh rcv_ssthresh unacked sacked lost retrans fackets",
+};
+
+struct Config {
+  int sample;
+  unsigned log_level;
+  TSTextLogObject log;
+
+  Config() : sample(1000), log_level(1), log(NULL) {
+  }
+
+  ~Config() {
+    if (log) {
+      TSTextLogObjectDestroy(log);
+    }
+  }
+};
+
+union const_sockaddr_ptr {
+  const struct sockaddr * sa;
+  const struct sockaddr_in * in;
+  const struct sockaddr_in6 * in6;
+
+  const void * addr() const {
+    switch (sa->sa_family) {
+    case AF_INET: return &(in->sin_addr);
+    case AF_INET6: return &(in6->sin6_addr);
+    default: return NULL;
+    }
+  }
+
+};
+
+#if TCPI_PLUGIN_SUPPORTED
+
+static void
+log_tcp_info(Config * config, const char * event_name, TSHttpSsn ssnp)
+{
+  char                client_str[INET6_ADDRSTRLEN];
+  char                server_str[INET6_ADDRSTRLEN];
+  const_sockaddr_ptr  client_addr;
+  const_sockaddr_ptr  server_addr;
+
+  struct tcp_info     info;
+  socklen_t           tcp_info_len = sizeof(info);
+  int                 fd;
+
+  TSReleaseAssert(config->log != NULL);
+
+  if (TSHttpSsnClientFdGet(ssnp, &fd) != TS_SUCCESS) {
+    TSDebug("tcpinfo", "error getting the client socket fd");
+    return;
+  }
+
+  if (getsockopt(fd, IPPROTO_TCP, TCP_INFO, &info, &tcp_info_len) != 0) {
+    TSDebug("tcpinfo", "getsockopt(%d, TCP_INFO) failed: %s", fd, strerror(errno));
+    return;
+  }
+
+  client_addr.sa = TSHttpSsnClientAddrGet(ssnp);
+  server_addr.sa = TSHttpSsnIncomingAddrGet(ssnp);
+
+  if (client_addr.sa == NULL || server_addr.sa == NULL) {
+    return;
+  }
+
+  // convert ip to string
+  inet_ntop(client_addr.sa->sa_family, client_addr.addr(), client_str, sizeof(client_str));
+  inet_ntop(server_addr.sa->sa_family, server_addr.addr(), server_str, sizeof(server_str));
+
+  TSReturnCode ret;
+
+  if (config->log_level == 2) {
+#if !defined(freebsd) || defined(__GLIBC__)
+    ret = TSTextLogObjectWrite(config->log, "%s %s %s %u %u %u %u %u %u %u %u %u %u %u %u",
+                     event_name,
+                     client_str,
+                     server_str,
+                     info.tcpi_rtt,
+                     info.tcpi_rttvar,
+                     info.tcpi_last_data_sent,
+                     info.tcpi_last_data_recv,
+                     info.tcpi_snd_cwnd,
+                     info.tcpi_snd_ssthresh,
+                     info.tcpi_rcv_ssthresh,
+                     info.tcpi_unacked,
+                     info.tcpi_sacked,
+                     info.tcpi_lost,
+                     info.tcpi_retrans,
+                     info.tcpi_fackets);
+#else
+    ret = TSTextLogObjectWrite(config->log, "%s %s %s %u %u %u %u %u %u %u %u %u %u %u %u",
+                     event_name,
+                     client_str,
+                     server_str,
+                     info.tcpi_rtt,
+                     info.tcpi_rttvar,
+                     info.__tcpi_last_data_sent,
+                     info.tcpi_last_data_recv,
+                     info.tcpi_snd_cwnd,
+                     info.tcpi_snd_ssthresh,
+                     info.__tcpi_rcv_ssthresh,
+                     info.__tcpi_unacked,
+                     info.__tcpi_sacked,
+                     info.__tcpi_lost,
+                     info.__tcpi_retrans,
+                     info.__tcpi_fackets);
+#endif
+  } else {
+    ret = TSTextLogObjectWrite(config->log, "%s %s %s %u",
+                     event_name,
+                     client_str,
+                     server_str,
+                     info.tcpi_rtt);
+  }
+
+  // It's really not clear how we should handle logging failures. It a failure transient
+  // or persistent? Should we try to re-open the logs? How frequently should we do that?
+  if (ret != TS_SUCCESS) {
+    TSError("[tcpinfo] log write failed, disabling logging");
+    TSTextLogObjectDestroy(config->log);
+    config->log = NULL;
+  }
+}
+
+#else /* TCPI_PLUGIN_SUPPORTED */
+
+static void
+log_tcp_info(Config * /* config */, const char * /* event_name */, TSHttpSsn /* ssnp */)
+{
+  return; // TCP metrics not supported.
+}
+
+#endif /* TCPI_PLUGIN_SUPPORTED */
+
+static int
+tcp_info_hook(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpSsn ssnp = NULL;
+  TSHttpTxn txnp = NULL;
+  int       random = 0;
+  Config *  config = (Config *)TSContDataGet(contp);
+
+  const char *event_name;
+  switch (event) {
+  case TS_EVENT_HTTP_SSN_START:
+    ssnp = (TSHttpSsn)edata;
+    event_name = "ssn_start";
+    break;
+  case TS_EVENT_HTTP_TXN_START:
+    txnp = (TSHttpTxn)edata;
+    ssnp = TSHttpTxnSsnGet(txnp);
+    event_name = "txn_start";
+    break;
+  case TS_EVENT_HTTP_TXN_CLOSE:
+    txnp = (TSHttpTxn)edata;
+    ssnp = TSHttpTxnSsnGet(txnp);
+    event_name = "txn_close";
+    break;
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    txnp = (TSHttpTxn)edata;
+    ssnp = TSHttpTxnSsnGet(txnp);
+    event_name = "send_resp_hdr";
+    break;
+  case TS_EVENT_HTTP_SSN_CLOSE:
+    ssnp = (TSHttpSsn)edata;
+    event_name = "ssn_close";
+    break;
+  default:
+    return 0;
+  }
+
+  TSDebug("tcpinfo", "logging hook called for %s (%s) with log object %p",
+      TSHttpEventNameLookup(event), event_name, config->log);
+
+  if (config->log == NULL) {
+    goto done;
+  }
+
+  // Don't try to sample internal requests. TCP metrics for loopback are not interesting.
+  if (TSHttpIsInternalSession(ssnp) == TS_SUCCESS) {
+    goto done;
+  }
+
+  // no need to run rand if we are always going log (100%)
+  if (config->sample < 1000) {
+    random = rand() % 1000;
+    TSDebug("tcpinfo", "random: %d, config->sample: %d", random, config->sample);
+  }
+
+  if (random < config->sample) {
+    TSDebug("tcpinfo", "sampling TCP metrics for %s event", event_name);
+    log_tcp_info(config, event_name, ssnp);
+  }
+
+done:
+  if (txnp != NULL) {
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+  } else if (ssnp != NULL) {
+    TSHttpSsnReenable(ssnp, TS_EVENT_HTTP_CONTINUE);
+  }
+
+  return TS_EVENT_NONE;
+}
+
+static bool
+parse_unsigned(const char * str, unsigned long& lval)
+{
+  char * end = NULL;
+
+  if (*str == '\0') {
+    return false;
+  }
+
+  lval = strtoul(str, &end, 0 /* base */);
+  if (end == str) {
+    // No valid characters.
+    return false;
+  }
+
+  if (end && *end != '\0') {
+    // Not all charaters consumed.
+    return false;
+  }
+
+  return true;
+}
+
+// Parse a comma-separated list of hook names into a hook bitmask.
+static unsigned
+parse_hook_list(const char * hook_list)
+{
+  unsigned mask = 0;
+  char * tok;
+  char * str;
+  char * last;
+
+  const struct hookmask { const char * name; unsigned mask; } hooks[] = {
+    { "ssn_start", TCPI_HOOK_SSN_START },
+    { "txn_start", TCPI_HOOK_TXN_START },
+    { "send_resp_hdr", TCPI_HOOK_SEND_RESPONSE },
+    { "ssn_close", TCPI_HOOK_SSN_CLOSE },
+    { "txn_close", TCPI_HOOK_TXN_CLOSE },
+    { NULL, 0u }
+  };
+
+  str = TSstrdup(hook_list);
+
+  for (tok = strtok_r(str, ",", &last); tok; tok = strtok_r(NULL, ",", &last)) {
+    bool match = false;
+
+    for (const struct hookmask * m = hooks; m->name != NULL; ++m) {
+      if (strcmp(m->name, tok) == 0) {
+        mask |= m->mask;
+        match = true;
+        break;
+      }
+    }
+
+    if (!match) {
+      TSError("[tcpinfo] invalid hook name '%s'", tok);
+    }
+  }
+
+  TSfree(str);
+  return mask;
+}
+
+void
+TSPluginInit(int argc, const char * argv[])
+{
+  static const char usage[] = "tcpinfo.so [--log-file=PATH] [--log-level=LEVEL] [--hooks=LIST] [--sample-rate=COUNT]";
+  static const struct option longopts[] = {
+    { const_cast<char *>("sample-rate"), required_argument, NULL, 'r' },
+    { const_cast<char *>("log-file"), required_argument, NULL, 'f' },
+    { const_cast<char *>("log-level"), required_argument, NULL, 'l' },
+    { const_cast<char *>("hooks"), required_argument, NULL, 'h' },
+    { NULL, 0, NULL, 0 }
+  };
+
+  TSPluginRegistrationInfo info;
+  Config *  config = new Config();
+  const char *  filename = "tcpinfo";
+  TSCont    cont;
+  unsigned  hooks = 0;
+
+  info.plugin_name = (char*)"tcpinfo";
+  info.vendor_name = (char*)"Apache Software Foundation";
+  info.support_email = (char*)"dev@trafficserver.apache.org";
+
+  if (TSPluginRegister(TS_SDK_VERSION_3_0, &info) != TS_SUCCESS) {
+    TSError("[tcpinfo] plugin registration failed");
+  }
+
+  optind = 0;
+  for (;;) {
+    unsigned long lval;
+
+    switch (getopt_long(argc, (char * const *)argv, "r:f:l:h:", longopts, NULL)) {
+    case 'r':
+      if (parse_unsigned(optarg, lval)) {
+        config->sample = atoi(optarg);
+      } else {
+        TSError("[tcpinfo] invalid sample rate '%s'", optarg);
+      }
+      break;
+    case 'f':
+      filename = optarg;
+      break;
+    case 'l':
+      if (parse_unsigned(optarg, lval) && (lval <= countof(tcpi_headers))) {
+        config->log_level = lval;
+      } else {
+        TSError("[tcpinfo] invalid log level '%s'", optarg);
+      }
+      break;
+    case 'h':
+      hooks = parse_hook_list(optarg);
+      break;
+    case -1:
+        goto init;
+    default:
+        TSError("[tcpinfo] usage: %s", usage);
+    }
+  }
+
+init:
+
+#if !TCPI_PLUGIN_SUPPORTED
+  TSError("[tcpinfo] TCP metrics are not supported on this platform");
+#endif
+
+  TSDebug("tcpinfo", "sample: %d", config->sample);
+  TSDebug("tcpinfo", "log filename: %s", filename);
+  TSDebug("tcpinfo", "log_level: %u", config->log_level);
+  TSDebug("tcpinfo", "hook mask: 0x%x", hooks);
+
+  if (TSTextLogObjectCreate(filename, TS_LOG_MODE_ADD_TIMESTAMP, &config->log) != TS_SUCCESS) {
+    TSError("[tcpinfo] failed to create log file '%s'", filename);
+    delete config;
+    return;
+  }
+
+  TSTextLogObjectHeaderSet(config->log, tcpi_headers[config->log_level - 1]);
+
+  cont = TSContCreate(tcp_info_hook, NULL);
+  TSContDataSet(cont, config);
+
+  if (hooks & TCPI_HOOK_SSN_START) {
+    TSHttpHookAdd(TS_HTTP_SSN_START_HOOK, cont);
+    TSDebug("tcpinfo", "added hook to the start of the TCP connection");
+  }
+
+  if (hooks & TCPI_HOOK_TXN_START) {
+    TSHttpHookAdd(TS_HTTP_TXN_START_HOOK, cont);
+    TSDebug("tcpinfo", "added hook to the start of the transaction");
+  }
+
+  if (hooks & TCPI_HOOK_SEND_RESPONSE) {
+    TSHttpHookAdd(TS_HTTP_SEND_RESPONSE_HDR_HOOK, cont);
+    TSDebug("tcpinfo", "added hook to the sending of the headers");
+  }
+
+  if (hooks & TCPI_HOOK_SSN_CLOSE) {
+    TSHttpHookAdd(TS_HTTP_SSN_CLOSE_HOOK, cont);
+    TSDebug("tcpinfo", "added hook to the close of the TCP connection");
+  }
+
+  if (hooks & TCPI_HOOK_TXN_CLOSE) {
+    TSHttpHookAdd(TS_HTTP_TXN_CLOSE_HOOK, cont);
+    TSDebug("tcpinfo", "added hook to the close of the transaction");
+  }
+
+}
diff --git a/proxy/AbstractBuffer.cc b/proxy/AbstractBuffer.cc
new file mode 100644
index 00000000..56aceb61
--- /dev/null
+++ b/proxy/AbstractBuffer.cc
@@ -0,0 +1,302 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include <assert.h>
+#include <string.h>
+#include "AbstractBuffer.h"
+/* #include "CacheAtomic.h" */
+#include "ink_align.h"
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+ABError AbstractBuffer::checkout_write(int *write_offset, int write_size, uint64_t retries)
+{
+  VolatileState
+    old_vs;
+  VolatileState
+    new_vs;
+
+  write_size = INK_ALIGN(write_size, alignment);
+
+  // Initialize the buffer if it currently isn't in use.
+  old_vs = vs;
+  new_vs = old_vs;
+
+  if (new_vs.s.state == AB_STATE_UNUSED) {
+    new_vs.s.state = AB_STATE_INITIALIZING;
+    if (switch_state(old_vs, new_vs)) {
+      vs_history[AB_STATE_INITIALIZING] = old_vs;
+      initialize();
+    }
+  }
+
+  while (retries-- > 0) {
+    old_vs = vs;
+    new_vs = old_vs;
+
+    if (new_vs.s.state != AB_STATE_READ_WRITE) {
+      return AB_ERROR_STATE;
+    }
+
+    if ((uint32_t) (new_vs.s.offset + write_size) > (uint32_t) size) {
+      new_vs.s.state = AB_STATE_READ_ONLY;
+      if (switch_state(old_vs, new_vs)) {
+        vs_history[AB_STATE_READ_ONLY] = old_vs;
+        full();
+      }
+      return AB_ERROR_FULL;
+    }
+
+    *write_offset = new_vs.s.offset;
+    new_vs.s.offset += write_size;
+    new_vs.s.writer_count += 1;
+
+    if (switch_state(old_vs, new_vs)) {
+      ink_assert((*write_offset + write_size) <= size);
+      return AB_ERROR_OK;
+    }
+  }
+
+  return AB_ERROR_BUSY;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+ABError AbstractBuffer::checkout_read(int read_offset, int read_size)
+{
+  VolatileState
+    old_vs;
+  VolatileState
+    new_vs;
+
+  do {
+    old_vs = vs;
+    new_vs = old_vs;
+
+    if ((new_vs.s.state != AB_STATE_READ_WRITE) &&
+        (new_vs.s.state != AB_STATE_READ_ONLY) && (new_vs.s.state != AB_STATE_FLUSH)) {
+      return AB_ERROR_STATE;
+    }
+
+    if ((uint32_t) (read_offset + read_size) > new_vs.s.offset) {
+      return AB_ERROR_OFFSET;
+    }
+
+    new_vs.s.reader_count += 1;
+  } while (!switch_state(old_vs, new_vs));
+
+  return AB_ERROR_OK;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+ABError AbstractBuffer::checkin_write(int write_offset)
+{
+  VolatileState
+    old_vs;
+  VolatileState
+    new_vs;
+
+  do {
+    old_vs = vs;
+    new_vs = old_vs;
+
+    ink_assert(new_vs.s.writer_count > 0);
+    ink_assert((new_vs.s.state == AB_STATE_READ_WRITE) || (new_vs.s.state == AB_STATE_READ_ONLY));
+    ink_assert((uint32_t) write_offset < new_vs.s.offset);
+
+    new_vs.s.writer_count -= 1;
+  } while (!switch_state(old_vs, new_vs));
+
+  old_vs = vs;
+  new_vs = old_vs;
+
+  while ((new_vs.s.state == AB_STATE_READ_ONLY) && (new_vs.s.writer_count == 0)) {
+    new_vs.s.state = AB_STATE_FLUSH;
+    if (switch_state(old_vs, new_vs)) {
+      vs_history[AB_STATE_FLUSH] = old_vs;
+      flush();
+      break;
+    }
+
+    old_vs = vs;
+    new_vs = old_vs;
+  }
+
+  return AB_ERROR_OK;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+ABError AbstractBuffer::checkin_read(int read_offset)
+{
+  VolatileState
+    old_vs;
+  VolatileState
+    new_vs;
+
+  do {
+    old_vs = vs;
+    new_vs = old_vs;
+
+    ink_assert(new_vs.s.reader_count > 0);
+    ink_assert(new_vs.s.state != AB_STATE_UNUSED);
+    ink_assert((uint32_t) read_offset < new_vs.s.offset);
+
+    new_vs.s.reader_count -= 1;
+  } while (!switch_state(old_vs, new_vs));
+
+  if ((new_vs.s.state == AB_STATE_FLUSH_COMPLETE) && (new_vs.s.reader_count == 0)) {
+    destroy();
+  }
+
+  return AB_ERROR_OK;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+AbstractBuffer::initialize()
+{
+  ink_assert(vs.s.state == AB_STATE_INITIALIZING);
+  ink_assert(vs.s.writer_count == 0);
+  ink_assert(vs.s.reader_count == 0);
+
+  if (!unaligned_buffer) {
+    unaligned_buffer = new char[size + 511];
+    buffer = (char *) align_pointer_forward(unaligned_buffer, 512);
+  }
+
+  vs_history[AB_STATE_READ_WRITE] = vs;
+
+  vs.s.offset = 0;
+  vs.s.state = AB_STATE_READ_WRITE;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+AbstractBuffer::full()
+{
+  if ((vs.s.state == AB_STATE_READ_ONLY) && (vs.s.writer_count == 0)) {
+    VolatileState old_vs(vs);
+    VolatileState new_vs(old_vs);
+
+    while ((new_vs.s.state == AB_STATE_READ_ONLY) && (new_vs.s.writer_count == 0)) {
+      new_vs.s.state = AB_STATE_FLUSH;
+      if (switch_state(old_vs, new_vs)) {
+        vs_history[AB_STATE_FLUSH] = old_vs;
+        flush();
+        break;
+      }
+
+      old_vs = vs;
+      new_vs = old_vs;
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+AbstractBuffer::flush()
+{
+  ink_assert(vs.s.state == AB_STATE_FLUSH);
+  ink_assert(vs.s.writer_count == 0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+AbstractBuffer::flush_complete()
+{
+
+  VolatileState old_vs;
+  VolatileState new_vs;
+
+  /* INKqa06826 - Race Condition. Must make sure that setting the new state is
+     atomic. If there is a context switch in the middle of setting the state to
+     AB_STATE_FLUSH_COMPLETE, the checkin_read would be lost, the reader_count
+     will never go to 0, resulting in memory leak */
+
+  do {
+    old_vs = vs;
+    new_vs = old_vs;
+
+    ink_assert(vs.s.state == AB_STATE_FLUSH);
+    ink_assert(vs.s.writer_count == 0);
+    new_vs.s.state = AB_STATE_FLUSH_COMPLETE;
+
+  } while (!switch_state(old_vs, new_vs));
+
+  vs_history[AB_STATE_FLUSH_COMPLETE] = vs;
+
+  if (vs.s.reader_count == 0) {
+    destroy();
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+AbstractBuffer::destroy()
+{
+  ink_assert(vs.s.state == AB_STATE_FLUSH_COMPLETE);
+  ink_assert(vs.s.writer_count == 0);
+  ink_assert(vs.s.reader_count == 0);
+
+  vs_history[AB_STATE_UNUSED] = vs;
+
+  vs.s.offset = 0;
+  vs.s.state = AB_STATE_UNUSED;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+AbstractBuffer::clear()
+{
+  if (unaligned_buffer) {
+    delete[]unaligned_buffer;
+  }
+  unaligned_buffer = buffer = NULL;
+
+  vs_history[AB_STATE_UNUSED] = vs;
+
+  vs.s.writer_count = 0;
+  vs.s.reader_count = 0;
+  vs.s.offset = 0;
+  vs.s.state = AB_STATE_UNUSED;
+}
diff --git a/proxy/AbstractBuffer.h b/proxy/AbstractBuffer.h
new file mode 100644
index 00000000..30e5b61c
--- /dev/null
+++ b/proxy/AbstractBuffer.h
@@ -0,0 +1,184 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __ABSTRACT_BUFFER_H__
+#define __ABSTRACT_BUFFER_H__
+
+
+#include "libts.h"
+
+
+enum ABError
+{
+  AB_ERROR_OK,
+  AB_ERROR_BUSY,
+  AB_ERROR_STATE,
+  AB_ERROR_FULL,
+  AB_ERROR_OFFSET
+};
+
+
+class AbstractBuffer
+{
+public:
+  enum AbstractBufferState
+  {
+    AB_STATE_UNUSED,
+    AB_STATE_INITIALIZING,
+    AB_STATE_READ_WRITE,
+    AB_STATE_READ_ONLY,
+    AB_STATE_FLUSH,
+    AB_STATE_FLUSH_COMPLETE
+  };
+
+protected:
+  union VolatileState
+  {
+    VolatileState()
+    {
+      ival = 0;
+    }
+
+    VolatileState(volatile VolatileState & vs)
+    {
+      ival = vs.ival;
+    }
+
+    VolatileState & operator =(volatile VolatileState & vs)
+    {
+      ival = vs.ival;
+      return *this;
+    }
+
+    int64_t ival;
+    struct
+    {
+      uint16_t reader_count;
+      uint16_t writer_count;
+      uint32_t offset:29;
+      uint32_t state:3;
+    } s;
+  };
+
+public:
+  AbstractBuffer(int xsize, int xalignment)
+  : buffer(NULL), unaligned_buffer(NULL), size(xsize), alignment(xalignment)
+  {
+    clear();
+  }
+  virtual ~ AbstractBuffer() {
+    clear();
+  }
+
+  char *data()
+  {
+    return buffer;
+  }
+  char &operator [] (int idx)
+  {
+    ink_assert(idx >= 0);
+    ink_assert(idx < size);
+    return buffer[idx];
+  }
+  int offset()
+  {
+    return vs.s.offset;
+  }
+
+  virtual ABError checkout_write(int *write_offset, int write_size, uint64_t retries = (uint64_t) - 1);
+  virtual ABError checkout_read(int read_offset, int read_size);
+  virtual ABError checkin_write(int write_offset);
+  virtual ABError checkin_read(int read_offset);
+
+  virtual void initialize();
+  virtual void full();
+  virtual void flush();
+  virtual void flush_complete();
+  virtual void destroy();
+  virtual void clear();
+
+  bool switch_state(VolatileState & old_state, VolatileState & new_state);
+
+public:
+  volatile VolatileState vs;
+  char *buffer;
+  char *unaligned_buffer;
+  int size;
+  int alignment;
+
+public:
+  VolatileState vs_history[AB_STATE_FLUSH_COMPLETE + 1];
+};
+
+
+class AbstractBufferReader
+{
+public:
+  AbstractBufferReader(AbstractBuffer * xbuffer, int xoffset)
+  : buffer(xbuffer), offset(xoffset)
+  {
+  }
+
+   ~AbstractBufferReader()
+  {
+    buffer->checkin_read(offset);
+  }
+
+private:
+  AbstractBuffer * buffer;
+  int offset;
+};
+
+
+class AbstractBufferWriter
+{
+public:
+  AbstractBufferWriter(AbstractBuffer * xbuffer, int xoffset)
+  : buffer(xbuffer), offset(xoffset)
+  {
+  }
+
+   ~AbstractBufferWriter()
+  {
+    buffer->checkin_write(offset);
+  }
+
+private:
+  AbstractBuffer * buffer;
+  int offset;
+};
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+AbstractBuffer::switch_state(VolatileState & old_vs, VolatileState & new_vs)
+{
+  if (ink_atomic_cas((int64_t *) & vs.ival, old_vs.ival, new_vs.ival)) {
+    return true;
+  }
+
+  return false;
+}
+
+#endif /* __ABSTRACT_BUFFER_H__ */
diff --git a/proxy/CacheControl.cc b/proxy/CacheControl.cc
new file mode 100644
index 00000000..50cb02d1
--- /dev/null
+++ b/proxy/CacheControl.cc
@@ -0,0 +1,502 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CacheControl.cc - Implementation to Cache Control systtem
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_config.h"
+
+#include <sys/types.h>
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+#include "CacheControl.h"
+#include "ControlMatcher.h"
+#include "Main.h"
+#include "Error.h"
+#include "P_EventSystem.h"
+#include "ProxyConfig.h"
+#include "HTTP.h"
+#include "HttpConfig.h"
+#include "StatSystem.h"
+#include "P_Cache.h"
+
+static const char modulePrefix[] = "[CacheControl]";
+
+# define TWEAK_CACHE_RESPONSES_TO_COOKIES "cache-responses-to-cookies"
+
+static const char *CC_directive_str[CC_NUM_TYPES] = {
+  "INVALID",
+  "REVALIDATE_AFTER",
+  "NEVER_CACHE",
+  "STANDARD_CACHE",
+  "IGNORE_NO_CACHE",
+  "CLUSTER_CACHE_LOCAL",
+  "IGNORE_CLIENT_NO_CACHE",
+  "IGNORE_SERVER_NO_CACHE",
+  "PIN_IN_CACHE",
+  "TTL_IN_CACHE"
+ // "CACHE_AUTH_CONTENT"
+};
+
+typedef ControlMatcher<CacheControlRecord, CacheControlResult> CC_table;
+
+// Global Ptrs
+static Ptr<ProxyMutex> reconfig_mutex;
+CC_table *CacheControlTable = NULL;
+
+void
+CC_delete_table()
+{
+  delete CacheControlTable;
+}
+
+// struct CC_FreerContinuation
+// Continuation to free old cache control lists after
+//  a timeout
+//
+struct CC_FreerContinuation;
+typedef int (CC_FreerContinuation::*CC_FreerContHandler) (int, void *);
+struct CC_FreerContinuation: public Continuation
+{
+  CC_table *p;
+  int freeEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    Debug("cache_control", "Deleting old table");
+    delete p;
+    delete this;
+    return EVENT_DONE;
+  }
+  CC_FreerContinuation(CC_table * ap):Continuation(NULL), p(ap)
+  {
+    SET_HANDLER((CC_FreerContHandler) & CC_FreerContinuation::freeEvent);
+  }
+};
+
+
+// struct CC_UpdateContinuation
+//
+//   Used to read the cache.conf file after the manager signals
+//      a change
+//
+struct CC_UpdateContinuation: public Continuation
+{
+  int file_update_handler(int /* etype ATS_UNUSED */, void * /* data ATS_UNUSED */)
+  {
+    reloadCacheControl();
+    delete this;
+    return EVENT_DONE;
+  }
+  CC_UpdateContinuation(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER(&CC_UpdateContinuation::file_update_handler);
+  }
+};
+
+int
+cacheControlFile_CB(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                    RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  eventProcessor.schedule_imm(new CC_UpdateContinuation(reconfig_mutex), ET_CACHE);
+  return 0;
+}
+
+//
+//   Begin API functions
+//
+bool
+host_rule_in_CacheControlTable()
+{
+  return (CacheControlTable->hostMatch ? true : false);
+}
+
+bool
+ip_rule_in_CacheControlTable()
+{
+  return (CacheControlTable->ipMatch ? true : false);
+}
+
+void
+initCacheControl()
+{
+  ink_assert(CacheControlTable == NULL);
+  reconfig_mutex = new_ProxyMutex();
+  CacheControlTable = new CC_table("proxy.config.cache.control.filename", modulePrefix, &http_dest_tags);
+  REC_RegisterConfigUpdateFunc("proxy.config.cache.control.filename", cacheControlFile_CB, NULL);
+}
+
+// void reloadCacheControl()
+//
+//  Called when the cache.conf file changes.  Since it called
+//   infrequently, we do the load of new file as blocking I/O and
+//   lock aquire is also blocking
+//
+void
+reloadCacheControl()
+{
+  CC_table *newTable;
+
+  Debug("cache_control", "cache.config updated, reloading");
+  eventProcessor.schedule_in(new CC_FreerContinuation(CacheControlTable), CACHE_CONTROL_TIMEOUT, ET_CACHE);
+  newTable = new CC_table("proxy.config.cache.control.filename", modulePrefix, &http_dest_tags);
+  ink_atomic_swap(&CacheControlTable, newTable);
+}
+
+void
+getCacheControl(CacheControlResult *result, HttpRequestData *rdata, OverridableHttpConfigParams *h_txn_conf, char *tag)
+{
+  rdata->tag = tag;
+  CacheControlTable->Match(rdata, result);
+
+  if (h_txn_conf->cache_cluster_cache_local) {
+    result->cluster_cache_local = true;
+  }
+
+  if (h_txn_conf->cache_ignore_client_no_cache) {
+    result->ignore_client_no_cache = true;
+  }
+
+  if (h_txn_conf->cache_ignore_server_no_cache) {
+    result->ignore_server_no_cache = true;
+  }
+
+  if (!h_txn_conf->cache_ignore_client_cc_max_age) {
+    result->ignore_client_cc_max_age = false;
+  }
+}
+
+bool 
+getClusterCacheLocal(URL *url, char * /* hostname ATS_UNUSED */)
+{
+  HttpRequestData rdata;
+  CacheControlResult result;
+  HTTPHdr req_hdr;  
+
+  req_hdr.create(HTTP_TYPE_REQUEST, NULL);
+  req_hdr.url_set(url);
+  rdata.hdr = &req_hdr;
+  CacheControlTable->Match(&rdata, &result);
+  req_hdr.clear();
+  return result.cluster_cache_local;
+}
+
+//
+//   End API functions
+//
+
+
+// void CacheControlResult::Print()
+//
+//  Debugging Method
+//
+void
+CacheControlResult::Print()
+{
+  printf("\t reval: %d, never-cache: %d, pin: %d, cluster-cache-c: %d ignore-c: %d ignore-s: %d\n",
+         revalidate_after, never_cache, pin_in_cache_for, cluster_cache_local, ignore_client_no_cache,
+         ignore_server_no_cache);
+}
+
+// void CacheControlRecord::Print()
+//
+//  Debugging Method
+//
+void
+CacheControlRecord::Print()
+{
+  switch (this->directive) {
+  case CC_REVALIDATE_AFTER:
+    printf("\t\tDirective: %s : %d\n", CC_directive_str[CC_REVALIDATE_AFTER], this->time_arg);
+    break;
+  case CC_PIN_IN_CACHE:
+    printf("\t\tDirective: %s : %d\n", CC_directive_str[CC_PIN_IN_CACHE], this->time_arg);
+    break;
+  case CC_TTL_IN_CACHE:
+    printf("\t\tDirective: %s : %d\n", CC_directive_str[CC_TTL_IN_CACHE], this->time_arg);
+    break;
+  case CC_CLUSTER_CACHE_LOCAL:
+  case CC_IGNORE_CLIENT_NO_CACHE:
+  case CC_IGNORE_SERVER_NO_CACHE:
+  case CC_NEVER_CACHE:
+  case CC_STANDARD_CACHE:
+  case CC_IGNORE_NO_CACHE:
+    printf("\t\tDirective: %s\n", CC_directive_str[this->directive]);
+    break;
+  case CC_INVALID:
+  case CC_NUM_TYPES:
+    printf("\t\tDirective: INVALID\n");
+    break;
+  }
+  if (cache_responses_to_cookies >= 0)
+    printf("\t\t  - " TWEAK_CACHE_RESPONSES_TO_COOKIES ":%d\n",
+      cache_responses_to_cookies
+    );
+  ControlBase::Print();
+}
+
+// bool CacheControlRecord::Init(matcher_line* line_info)
+//
+//    matcher_line* line_info - contains parsed label/value
+//      pairs of the current cache.config line
+//
+//    Returns NULL if everything is OK
+//      Otherwise, returns an error string that the caller MUST
+//        DEALLOCATE with free()
+//
+char *
+CacheControlRecord::Init(matcher_line * line_info)
+{
+  int time_in;
+  char *errBuf;
+  const int errBufLen = 1024;
+  const char *tmp;
+  char *label;
+  char *val;
+  bool d_found = false;
+
+  this->line_num = line_info->line_num;
+
+  // First pass for optional tweaks.
+  for (int i = 0; i < MATCHER_MAX_TOKENS && line_info->num_el ; ++i) {
+    bool used = false;
+    label = line_info->line[0][i];
+    val = line_info->line[1][i];
+    if (!label) continue;
+
+    if (strcasecmp(label, TWEAK_CACHE_RESPONSES_TO_COOKIES) == 0) {
+      char* ptr = 0;
+      int v = strtol(val, &ptr, 0);
+      if (!ptr || v < 0 || v > 4) {
+        errBuf = static_cast<char*>(ats_malloc(errBufLen * sizeof(char)));
+        snprintf(errBuf, errBufLen, "Value for " TWEAK_CACHE_RESPONSES_TO_COOKIES
+                 " must be an integer in the range 0..4");
+        return errBuf;
+      } else {
+        cache_responses_to_cookies = v;
+      }
+      used = true;
+    }
+
+    // Clip pair if used.
+    if (used) {
+      line_info->line[0][i] = 0;
+      --(line_info->num_el);
+    }
+  }
+
+  // Now look for the directive.
+  for (int i = 0; i < MATCHER_MAX_TOKENS; i++) {
+    label = line_info->line[0][i];
+    val = line_info->line[1][i];
+
+    if (label == NULL) {
+      continue;
+    }
+
+    if (strcasecmp(label, "action") == 0) {
+      if (strcasecmp(val, "never-cache") == 0) {
+        directive = CC_NEVER_CACHE;
+        d_found = true;
+      } else if (strcasecmp(val, "standard-cache") == 0) {
+        directive = CC_STANDARD_CACHE;
+        d_found = true;
+      } else if (strcasecmp(val, "ignore-no-cache") == 0) {
+        directive = CC_IGNORE_NO_CACHE;
+        d_found = true;
+      } else if (strcasecmp(val, "cluster-cache-local") == 0) {
+        directive = CC_CLUSTER_CACHE_LOCAL;;
+        d_found = true;
+      } else if (strcasecmp(val, "ignore-client-no-cache") == 0) {
+        directive = CC_IGNORE_CLIENT_NO_CACHE;
+        d_found = true;
+      } else if (strcasecmp(val, "ignore-server-no-cache") == 0) {
+        directive = CC_IGNORE_SERVER_NO_CACHE;
+        d_found = true;
+      } else {
+        errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+        snprintf(errBuf, errBufLen, "%s Invalid action at line %d in cache.config", modulePrefix, line_num);
+        return errBuf;
+      }
+    } else {
+
+      if (strcasecmp(label, "revalidate") == 0) {
+        directive = CC_REVALIDATE_AFTER;
+        d_found = true;
+      } else if (strcasecmp(label, "pin-in-cache") == 0) {
+        directive = CC_PIN_IN_CACHE;
+        d_found = true;
+      } else if (strcasecmp(label, "ttl-in-cache") == 0) {
+        directive = CC_TTL_IN_CACHE;
+        d_found = true;
+      }
+      // Process the time argument for the remaining directives
+      if (d_found == true) {
+        tmp = processDurationString(val, &time_in);
+        if (tmp == NULL) {
+          this->time_arg = time_in;
+
+        } else {
+          errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+          snprintf(errBuf, errBufLen, "%s %s at line %d in cache.config", modulePrefix, tmp, line_num);
+          return errBuf;
+        }
+      }
+    }
+
+    if (d_found == true) {
+      // Consume the label/value pair we used
+      line_info->line[0][i] = NULL;
+      line_info->num_el--;
+      break;
+    }
+  }
+
+  if (d_found == false) {
+    errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+    snprintf(errBuf, errBufLen, "%s No directive in cache.config at line %d", modulePrefix, line_num);
+    return errBuf;
+  }
+  // Process any modifiers to the directive, if they exist
+  if (line_info->num_el > 0) {
+    tmp = ProcessModifiers(line_info);
+
+    if (tmp != NULL) {
+      errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+      snprintf(errBuf, errBufLen, "%s %s at line %d in cache.config", modulePrefix, tmp, line_num);
+      return errBuf;
+    }
+  }
+
+  return NULL;
+}
+
+// void CacheControlRecord::UpdateMatch(CacheControlResult* result, RequestData* rdata)
+//
+//    Updates the parameters in result if the this element
+//     appears later in the file
+//
+void
+CacheControlRecord::UpdateMatch(CacheControlResult * result, RequestData * rdata)
+{
+  bool match = false;
+  HttpRequestData *h_rdata = (HttpRequestData *) rdata;
+
+  switch (this->directive) {
+  case CC_REVALIDATE_AFTER:
+    if (this->CheckForMatch(h_rdata, result->reval_line) == true) {
+      result->revalidate_after = time_arg;
+      result->reval_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_NEVER_CACHE:
+    if (this->CheckForMatch(h_rdata, result->never_line) == true) {
+      result->never_cache = true;
+      result->never_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_STANDARD_CACHE:
+    // Standard cache just overrides never-cache
+    if (this->CheckForMatch(h_rdata, result->never_line) == true) {
+      result->never_cache = false;
+      result->never_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_IGNORE_NO_CACHE:
+    // We cover both client & server cases for this directive
+    //  FALLTHROUGH
+  case CC_IGNORE_CLIENT_NO_CACHE:
+    if (this->CheckForMatch(h_rdata, result->ignore_client_line) == true) {
+      result->ignore_client_no_cache = true;
+      result->ignore_client_line = this->line_num;
+      match = true;
+    }
+    if (this->directive != CC_IGNORE_NO_CACHE) {
+      break;
+    }
+    // FALLTHROUGH
+  case CC_IGNORE_SERVER_NO_CACHE:
+    if (this->CheckForMatch(h_rdata, result->ignore_server_line) == true) {
+      result->ignore_server_no_cache = true;
+      result->ignore_server_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_CLUSTER_CACHE_LOCAL:
+    if (this->CheckForMatch(h_rdata, result->cluster_cache_local_line) == true) {
+      result->cluster_cache_local = true;
+      result->cluster_cache_local_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_PIN_IN_CACHE:
+    if (this->CheckForMatch(h_rdata, result->pin_line) == true) {
+      result->pin_in_cache_for = time_arg;
+      result->pin_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_TTL_IN_CACHE:
+    if (this->CheckForMatch(h_rdata, result->ttl_line) == true) {
+      result->ttl_in_cache = time_arg;
+      result->ttl_line = this->line_num;
+      // ttl-in-cache overrides never-cache
+      result->never_cache = false;
+      result->never_line = this->line_num;
+      match = true;
+    }
+    break;
+  case CC_INVALID:
+  case CC_NUM_TYPES:
+  default:
+    // Should not get here
+    Warning("Impossible directive in CacheControlRecord::UpdateMatch");
+    ink_assert(0);
+    break;
+  }
+
+  if (cache_responses_to_cookies >= 0)
+    result->cache_responses_to_cookies = cache_responses_to_cookies;
+
+  if (match == true) {
+    char crtc_debug[80];
+    if (result->cache_responses_to_cookies >= 0)
+      snprintf(crtc_debug, sizeof(crtc_debug), " [" TWEAK_CACHE_RESPONSES_TO_COOKIES "=%d]",
+               result->cache_responses_to_cookies);
+    else
+      crtc_debug[0] = 0;
+      
+    Debug("cache_control", "Matched with for %s at line %d%s", CC_directive_str[this->directive],
+          this->line_num, crtc_debug);
+  }
+}
diff --git a/proxy/CacheControl.h b/proxy/CacheControl.h
new file mode 100644
index 00000000..1bbe380c
--- /dev/null
+++ b/proxy/CacheControl.h
@@ -0,0 +1,156 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CacheControl.h - Interface to Cache Control systtem
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _CACHE_CONTROL_H_
+#define _CACHE_CONTROL_H_
+
+#include "Main.h"
+#include "P_EventSystem.h"
+#include "ControlBase.h"
+
+struct RequestData;
+
+const int CC_UNSET_TIME = -1;
+
+#define CACHE_CONTROL_TIMEOUT            (HRTIME_HOUR*1)
+
+//   Use 10 second time for purify testing under low
+//     load to verify memory allocation
+//#define CACHE_CONTROL_TIMEOUT            (HRTIME_SECOND*10)
+
+enum CacheControlType
+{
+  CC_INVALID = 0,
+  CC_REVALIDATE_AFTER,
+  CC_NEVER_CACHE,
+  CC_STANDARD_CACHE,
+  CC_IGNORE_NO_CACHE,
+  CC_CLUSTER_CACHE_LOCAL,
+  CC_IGNORE_CLIENT_NO_CACHE,
+  CC_IGNORE_SERVER_NO_CACHE,
+  CC_PIN_IN_CACHE,
+  CC_TTL_IN_CACHE,
+  CC_NUM_TYPES
+};
+
+struct matcher_line;
+
+class CacheControlResult
+{
+public:
+
+  inkcoreapi CacheControlResult();
+  void Print();
+
+  // Data for external use
+  //
+  //   Describes the cache-control for a specific URL
+  //
+  int revalidate_after;
+  int pin_in_cache_for;
+  int ttl_in_cache;
+  bool never_cache;
+  bool cluster_cache_local;
+  bool ignore_client_no_cache;
+  bool ignore_server_no_cache;
+  bool ignore_client_cc_max_age;
+  int cache_responses_to_cookies; ///< Override for caching cookied responses.
+
+  // Data for internal use only
+  //
+  //   Keeps track of the last line number
+  //    on which a parameter was set
+  //   Used to tell if a parameter needs to
+  //    be overriden by something that appeared
+  //    earlier in the the config file
+  //
+  int reval_line;
+  int never_line;
+  int pin_line;
+  int ttl_line;
+  int cluster_cache_local_line;
+  int ignore_client_line;
+  int ignore_server_line;
+};
+
+inline
+CacheControlResult::CacheControlResult()
+  : revalidate_after(CC_UNSET_TIME),
+    pin_in_cache_for(CC_UNSET_TIME),
+    ttl_in_cache(CC_UNSET_TIME),
+    never_cache(false),
+    cluster_cache_local(false),
+    ignore_client_no_cache(false),
+    ignore_server_no_cache(false),
+    ignore_client_cc_max_age(true),
+    cache_responses_to_cookies(-1), // do not change value
+    reval_line(-1),
+    never_line(-1),
+    pin_line(-1),
+    ttl_line(-1),
+    cluster_cache_local_line(-1),
+    ignore_client_line(-1),
+    ignore_server_line(-1)
+{ }
+
+class CacheControlRecord : public ControlBase
+{
+public:
+  CacheControlRecord();
+  CacheControlType directive;
+  int time_arg;
+  int cache_responses_to_cookies;
+  char *Init(matcher_line * line_info);
+  inkcoreapi void UpdateMatch(CacheControlResult * result, RequestData * rdata);
+  void Print();
+};
+
+inline
+CacheControlRecord::CacheControlRecord()
+  : ControlBase(), directive(CC_INVALID), time_arg(0) , cache_responses_to_cookies(-1)
+{ }
+
+//
+// API to outside world
+//
+class URL;
+struct HttpConfigParams;
+struct OverridableHttpConfigParams;
+
+inkcoreapi void getCacheControl(CacheControlResult *result, HttpRequestData * rdata,
+                                OverridableHttpConfigParams *h_txn_conf, char *tag = NULL);
+inkcoreapi bool getClusterCacheLocal(URL *url, char *hostname);
+inkcoreapi bool host_rule_in_CacheControlTable();
+inkcoreapi bool ip_rule_in_CacheControlTable();
+
+void initCacheControl();
+void reloadCacheControl();
+
+#endif /* _CACHE_CONTROL_H_ */
diff --git a/proxy/ClassH.txt b/proxy/ClassH.txt
new file mode 100644
index 00000000..95fbfc7c
--- /dev/null
+++ b/proxy/ClassH.txt
@@ -0,0 +1,97 @@
+        
+        
+             Thread      { thread_key, processor }
+
+               |
+               |
+
+          EventThread   { event_mutex,
+                          DLL<EventContinuation> timeout_events,
+                          DLL<EventContinuation> free_events
+                        }
+  
+               |
+               |
+
+           IOThread     { DLL<IOVConnection> io_events,
+                          DLL<Connection>     free_connections;
+                        }
+               
+           /     \
+          /       \
+    DNSThread   AcceptThread
+
+                
+      
+
+
+
+             VConnection
+    
+                  |
+                  |
+
+           EventContinuation
+     
+                /         \
+               /           \
+
+        IOVConnection   DNSEntry
+      
+           /    \    \
+          /      \    \
+                  \    \
+DiskIOVConnection  \    \
+        NetIOVConnection \
+                   DNSIOVConnection
+
+
+
+
+
+         Processor
+             
+             |
+             |
+       EventProcessor
+
+             |
+             |
+
+       IOProcessor
+
+         /     \
+        /       \
+                 \
+ DiskProcessor    
+          NetProcessor
+          
+                |
+                |
+                
+          DNSProcessor
+          
+
+
+
+                    
+class VConnection:
+==================
+vio_queue : queue of io operations.
+read_vio  : current read vio.
+wrire_vio : current write vio.
+
+
+Thread:
+=======
+Processor: a reference to the processor that started the thread.
+
+EventThread:
+============
+timeout_events: a list (DLL) of EventContinuation
+free_events:
+
+IOThread:
+=========
+io_events:  list of IOVConnection
+
diff --git a/proxy/CompletionUtil.h b/proxy/CompletionUtil.h
new file mode 100644
index 00000000..d942b5fc
--- /dev/null
+++ b/proxy/CompletionUtil.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _COMPLETION_UTIL_H_
+#define _COMPLETION_UTIL_H_
+// interface
+class completionUtil
+{
+public:
+  static Event *create();
+  static void destroy(Event * e);
+  static void setThread(Event * e, EThread * t);
+  static void setContinuation(Event * e, Continuation * c);
+  static void *getHandle(Event * e);
+  static void setHandle(Event * e, void *handle);
+  static void setInfo(Event * e, int fd, IOBufferBlock * buf, int actual, int errno_);
+  static void setInfo(Event * e, int fd, struct msghdr *msg, int actual, int errno_);
+  static int getBytesTransferred(Event * e);
+  static IOBufferBlock *getIOBufferBlock(Event * e);
+  static Continuation *getContinuation(Event * e);
+  static int getError(Event * e);
+  static void releaseReferences(Event * e);
+};
+
+#include "UnixCompletionUtil.h"
+
+#endif
diff --git a/proxy/ConfigParse.h b/proxy/ConfigParse.h
new file mode 100644
index 00000000..5d576af2
--- /dev/null
+++ b/proxy/ConfigParse.h
@@ -0,0 +1,41 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _CONFIG_PARSE_H_
+#define _CONFIG_PARSE_H_
+
+/****************************************************************************
+ *
+ *  ConfigParse.h -  Prototype for parsing functions in libpreparse.a
+ *
+ *
+ ****************************************************************************/
+
+char *parseStorageFile(FILE * fp);
+char *parseStorageFile(int fd);
+//char *SocksParser(FILE * fp);
+//char *SocksParser(int fd);
+char *parseRemapFile(FILE * fp);
+char *parseRemapFile(int fd);
+
+#endif
diff --git a/proxy/ControlBase.cc b/proxy/ControlBase.cc
new file mode 100644
index 00000000..33356163
--- /dev/null
+++ b/proxy/ControlBase.cc
@@ -0,0 +1,661 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  ControlBase.cc - Base class to process generic modifiers to
+ *                         ControlMatcher Directives
+ *
+ *
+ ****************************************************************************/
+#include "ink_platform.h"
+#include "ink_defs.h"
+#include "ink_time.h"
+
+#include "Main.h"
+#include "URL.h"
+#include "Tokenizer.h"
+#include "ControlBase.h"
+#include "MatcherUtils.h"
+#include "HTTP.h"
+#include "ControlMatcher.h"
+#include "HdrUtils.h"
+#include "Vec.h"
+
+#include <ts/TsBuffer.h>
+
+/** Used for printing IP address.
+    @code
+    uint32_t addr; // IP address.
+    printf("IP address = " TS_IP_PRINTF_CODE,TS_IP_OCTETS(addr));
+    @endcode
+    @internal Need to move these to a common header.
+ */
+# define TS_IP_OCTETS(x) \
+  reinterpret_cast<unsigned char const*>(&(x))[0],   \
+    reinterpret_cast<unsigned char const*>(&(x))[1], \
+    reinterpret_cast<unsigned char const*>(&(x))[2], \
+    reinterpret_cast<unsigned char const*>(&(x))[3]
+
+// ----------
+ControlBase::Modifier::~Modifier() {}
+ControlBase::Modifier::Type ControlBase::Modifier::type() const { return MOD_INVALID; }
+// --------------------------
+namespace {
+// ----------
+struct TimeMod : public ControlBase::Modifier {
+  time_t start_time;
+  time_t end_time;
+
+  static char const * const NAME;
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  virtual void print(FILE* f) const;
+  static TimeMod* make(char * value, char const ** error);
+  static const char* timeOfDayToSeconds(const char *time_str, time_t * seconds);
+};
+
+char const * const TimeMod::NAME = "Time";
+ControlBase::Modifier::Type TimeMod::type() const { return MOD_TIME; }
+char const * TimeMod::name() const { return NAME; }
+
+void TimeMod::print(FILE* f) const {
+  fprintf(f, "%s=%ld-%ld  ",
+    // Have to cast because time_t can be 32 or 64 bits and the compiler
+    // will barf if format code doesn't match.
+    this->name(), static_cast<long>(start_time), static_cast<long>(end_time)
+  );
+}
+bool TimeMod::check(HttpRequestData* req) const {
+  struct tm cur_time;
+  time_t timeOfDay = req->xact_start;
+  // Use this to account for daylight savings time.
+  ink_localtime_r(&timeOfDay, &cur_time);
+  timeOfDay = cur_time.tm_hour*(60 * 60) + cur_time.tm_min*60 + cur_time.tm_sec;
+  return start_time <= timeOfDay && timeOfDay <= end_time;
+}
+
+TimeMod*
+TimeMod::make(char * value, char const ** error) {
+  Tokenizer rangeTok("-");
+  TimeMod* mod = 0;
+  TimeMod tmp;
+  int num_tok;
+
+  num_tok = rangeTok.Initialize(value, SHARE_TOKS);
+  if (num_tok == 1) {
+    *error = "End time not specified";
+  } else if (num_tok > 2) {
+    *error = "Malformed time range";
+  } else if (
+    0 == (*error = timeOfDayToSeconds(rangeTok[0], &tmp.start_time))
+    && 0 == (*error = timeOfDayToSeconds(rangeTok[1], &tmp.end_time))
+  ) {
+    mod = new TimeMod(tmp);
+  }
+  return mod;
+}
+/**   Converts TimeOfDay (TOD) to second value.
+      @a *seconds is set to number of seconds since midnight
+      represented by @a time_str.
+
+      @return 0 on success, static error string on failure.
+*/
+const char *
+TimeMod::timeOfDayToSeconds(const char *time_str, time_t * seconds) {
+  int hour = 0;
+  int min = 0;
+  int sec = 0;
+  time_t tmp = 0;
+
+  // coverity[secure_coding]
+  if (sscanf(time_str, "%d:%d:%d", &hour, &min, &sec) != 3) {
+    // coverity[secure_coding]
+    if (sscanf(time_str, "%d:%d", &hour, &min) != 2) {
+      return "Malformed time specified";
+    }
+  }
+
+  if (!(hour >= 0 && hour <= 23)) return "Illegal hour specification";
+
+  tmp = hour * 60;
+
+  if (!(min >= 0 && min <= 59)) return "Illegal minute specification";
+
+  tmp = (tmp + min) * 60;
+
+  if (!(sec >= 0 && sec <= 59)) return "Illegal second specification";
+
+  tmp += sec;
+
+  *seconds = tmp;
+  return 0;
+}
+
+// ----------
+struct PortMod : public ControlBase::Modifier {
+  int start_port;
+  int end_port;
+
+  static char const * const NAME;
+
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  virtual void print(FILE* f) const;
+
+  static PortMod* make(char* value, char const **error);
+};
+
+char const * const PortMod::NAME = "Port";
+char const * PortMod::name() const { return NAME; }
+
+void PortMod::print(FILE* f) const {
+  fprintf(f, "%s=%d-%d  ", this->name(), start_port, end_port);
+}
+
+bool PortMod::check(HttpRequestData* req) const {
+  int port = req->hdr->port_get();
+  return start_port <= port && port <= end_port;
+}
+
+PortMod*
+PortMod::make(char* value, char const ** error) {
+  Tokenizer rangeTok("-");
+  PortMod tmp;
+  int num_tok = rangeTok.Initialize(value, SHARE_TOKS);
+
+  *error = 0;
+  if (num_tok > 2) {
+    *error = "Malformed Range";
+    // coverity[secure_coding]
+  } else if (sscanf(rangeTok[0], "%d", &tmp.start_port) != 1) {
+    *error = "Invalid start port";
+  } else if (num_tok == 2) {
+    // coverity[secure_coding]
+    if (sscanf(rangeTok[1], "%d", &tmp.end_port) != 1)
+      *error = "Invalid end port";
+    else if (tmp.end_port < tmp.start_port)
+      *error = "Malformed Range: end port < start port";
+  } else {
+    tmp.end_port = tmp.start_port;
+  }
+
+  // If there's an error message, return null.
+  // Otherwise create a new item and return it.
+  return *error ? 0 : new PortMod(tmp);
+}
+
+// ----------
+struct IPortMod : public ControlBase::Modifier {
+  int _port;
+
+  static char const * const NAME;
+
+  IPortMod(int port);
+
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  virtual void print(FILE* f) const;
+  static IPortMod* make(char* value, char const ** error);
+};
+
+char const * const IPortMod::NAME = "IPort";
+IPortMod::IPortMod(int port) : _port(port) {}
+char const * IPortMod::name() const { return NAME; }
+
+void IPortMod::print(FILE* f) const {
+  fprintf(f, "%s=%d  ", this->name(), _port);
+}
+bool IPortMod::check(HttpRequestData* req) const {
+  return req->incoming_port == _port;
+}
+
+IPortMod*
+IPortMod::make(char* value, char const ** error) {
+  IPortMod* zret = 0;
+  int port;
+  // coverity[secure_coding]
+  if (sscanf(value, "%u", &port) == 1) {
+    zret = new IPortMod(port);
+  } else {
+    *error = "Invalid incoming port";
+  }
+  return zret;
+}
+// ----------
+struct SrcIPMod : public ControlBase::Modifier {
+  // Stored in host order because that's how they are compared.
+  IpEndpoint start_addr; ///< Start address in HOST order.
+  IpEndpoint end_addr; ///< End address in HOST order.
+
+  static char const * const NAME;
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  virtual void print(FILE* f) const;
+  static SrcIPMod* make(char * value, char const ** error);
+};
+
+char const * const SrcIPMod::NAME = "SrcIP";
+ControlBase::Modifier::Type SrcIPMod::type() const { return MOD_SRC_IP; }
+char const * SrcIPMod::name() const { return NAME; }
+
+void SrcIPMod::print(FILE* f) const {
+  ip_text_buffer b1, b2;
+  fprintf(f, "%s=%s-%s  "
+    ,this->name()
+    , ats_ip_ntop(&start_addr.sa, b1, sizeof(b1))
+    , ats_ip_ntop(&end_addr.sa, b2, sizeof(b2))
+  );
+}
+bool SrcIPMod::check(HttpRequestData* req) const {
+  // Compare in host order
+  return ats_ip_addr_cmp(&start_addr, &req->src_ip) <= 0
+    && ats_ip_addr_cmp(&req->src_ip, &end_addr) <= 0
+    ;
+}
+SrcIPMod*
+SrcIPMod::make(char * value, char const ** error ) {
+  SrcIPMod tmp;
+  SrcIPMod* zret = 0;
+  *error = ExtractIpRange(value, &tmp.start_addr.sa, &tmp.end_addr.sa);
+
+  if (!*error) zret = new SrcIPMod(tmp);
+  return zret;
+}
+// ----------
+struct SchemeMod : public ControlBase::Modifier {
+  int _scheme; ///< Tokenized scheme.
+
+  static char const * const NAME;
+
+  SchemeMod(int scheme);
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  virtual void print(FILE* f) const;
+
+  char const* getWksText() const;
+
+  static SchemeMod* make(char * value, char const ** error);
+};
+
+char const * const SchemeMod::NAME = "Scheme";
+
+SchemeMod::SchemeMod(int scheme) : _scheme(scheme) {}
+
+ControlBase::Modifier::Type SchemeMod::type() const { return MOD_SCHEME; }
+char const * SchemeMod::name() const { return NAME; }
+char const *
+SchemeMod::getWksText() const {
+  return hdrtoken_index_to_wks(_scheme);
+}
+
+bool SchemeMod::check(HttpRequestData* req) const {
+  return req->hdr->url_get()->scheme_get_wksidx() == _scheme;
+}
+void SchemeMod::print(FILE* f) const {
+  fprintf(f, "%s=%s  ", this->name(), hdrtoken_index_to_wks(_scheme));
+}
+SchemeMod*
+SchemeMod::make(char * value, char const ** error) {
+  SchemeMod* zret = 0;
+  int scheme = hdrtoken_tokenize(value, strlen(value));
+  if (scheme < 0) {
+    *error = "Unknown scheme";
+  } else {
+    zret = new SchemeMod(scheme);
+  }
+  return zret;
+}
+
+// ----------
+// This is a base class for all of the mods that have a
+// text string.
+struct TextMod : public ControlBase::Modifier {
+  ts::Buffer text;
+
+  TextMod();
+  ~TextMod();
+
+  // Calls name() which the subclass must provide.
+  virtual void print(FILE* f) const;
+
+  // Copy the given NUL-terminated string to the text buffer.
+  void set(const char * value);
+
+};
+
+TextMod::TextMod() : text(0) {}
+TextMod::~TextMod() {
+  free(text.data());
+}
+
+void TextMod::print(FILE* f) const {
+  fprintf(f, "%s=%*s  ", this->name(), static_cast<int>(text.size()), text.data());
+}
+
+void TextMod::set(const char * value) {
+  free(this->text.data());
+  this->text.set(ats_strdup(value), strlen(value));
+}
+
+struct MultiTextMod : public ControlBase::Modifier {
+  Vec<ts::Buffer> text_vec;
+  MultiTextMod();
+  ~MultiTextMod();
+
+  // Copy the value to the MultiTextMod buffer.
+  void set(char * value);
+
+  // Calls name() which the subclass must provide.
+  virtual void print(FILE* f) const;
+};
+
+MultiTextMod::MultiTextMod() {}
+MultiTextMod::~MultiTextMod() {
+  text_vec.clear();
+}
+
+void MultiTextMod::print(FILE* f) const {
+  for_Vec(ts::Buffer, text_iter, this->text_vec)
+    fprintf(f, "%s=%*s ", this->name(),static_cast<int>(text_iter.size()),text_iter.data());
+}
+
+void MultiTextMod::set(char * value) {
+  Tokenizer rangeTok(",");
+  int num_tok = rangeTok.Initialize(value, SHARE_TOKS);
+  for(int i = 0; i < num_tok; i++){
+    ts::Buffer text(0);
+    text.set(ats_strdup(rangeTok[i]), strlen(rangeTok[i]));
+    this->text_vec.push_back(text);
+  }
+}
+
+// ----------
+struct MethodMod : public TextMod {
+  static char const * const NAME;
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+
+  static MethodMod* make(char * value, char const ** error);
+};
+char const * const MethodMod::NAME = "Method";
+ControlBase::Modifier::Type MethodMod::type() const { return MOD_METHOD; }
+char const * MethodMod::name() const { return NAME; }
+bool MethodMod::check(HttpRequestData* req) const {
+  int method_len;
+  char const* method = req->hdr->method_get(&method_len);
+  return method_len >= static_cast<int>(text.size())
+    && 0 == strncasecmp(method, text.data(), text.size())
+    ;
+}
+MethodMod*
+MethodMod::make(char * value, char const **) {
+  MethodMod* mod = new MethodMod();
+  mod->set(value);
+  return mod;
+}
+
+// ----------
+struct PrefixMod : public TextMod {
+  static char const * const NAME;
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  static PrefixMod* make(char * value, char const ** error);
+};
+
+char const * const PrefixMod::NAME = "Prefix";
+ControlBase::Modifier::Type PrefixMod::type() const { return MOD_PREFIX; }
+char const * PrefixMod::name() const { return NAME; }
+bool PrefixMod::check(HttpRequestData* req) const {
+  int path_len;
+  char const* path = req->hdr->url_get()->path_get(&path_len);
+  bool zret = path_len >= static_cast<int>(text.size())
+    && 0 == memcmp(path, text.data(), text.size())
+    ;
+/*
+  Debug("cache_control", "Prefix check: URL=%0.*s Mod=%0.*s Z=%s",
+    path_len, path, text.size(), text.data(),
+    zret ? "Match" : "Fail"
+  );
+*/
+  return zret;
+}
+PrefixMod*
+PrefixMod::make(char * value, char const ** /* error ATS_UNUSED */) {
+  PrefixMod* mod = new PrefixMod();
+  // strip leading slashes because get_path which is used later
+  // doesn't include them from the URL.
+  while ('/' == *value) ++value;
+  mod->set(value);
+  return mod;
+}
+
+// ----------
+struct SuffixMod : public MultiTextMod {
+  static char const * const NAME;
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  static SuffixMod* make(char * value, char const ** error);
+};
+char const * const SuffixMod::NAME = "Suffix";
+ControlBase::Modifier::Type SuffixMod::type() const { return MOD_SUFFIX; }
+char const * SuffixMod::name() const { return NAME; }
+bool SuffixMod::check(HttpRequestData* req) const {
+  int path_len;
+  char const* path = req->hdr->url_get()->path_get(&path_len);
+  if(1 == static_cast<int>(this->text_vec.count()) && 1 == static_cast<int>(this->text_vec[0].size()) && 0 == strcmp(this->text_vec[0].data(),"*"))
+    return true;
+  for_Vec(ts::Buffer, text_iter, this->text_vec){
+    if (path_len >= static_cast<int>(text_iter.size()) && 0 == strncasecmp(path + path_len - text_iter.size(), text_iter.data(), text_iter.size()))
+      return true;
+  }
+  return false;
+}
+SuffixMod*
+SuffixMod::make(char * value, char const ** /* error ATS_UNUSED */) {
+  SuffixMod* mod = new SuffixMod();
+  mod->set(value);
+  return mod;
+}
+
+// ----------
+struct TagMod : public TextMod {
+  static char const * const NAME;
+
+  virtual Type type() const;
+  virtual char const * name() const;
+  virtual bool check(HttpRequestData* req) const;
+  static TagMod* make(char * value, char const ** error);
+};
+char const * const TagMod::NAME = "Tag";
+ControlBase::Modifier::Type TagMod::type() const { return MOD_TAG; }
+char const * TagMod::name() const { return NAME; }
+bool TagMod::check(HttpRequestData* req) const {
+  return 0 == strcmp(req->tag, text.data());
+}
+TagMod*
+TagMod::make(char * value, char const ** /* error ATS_UNUSED */) {
+  TagMod* mod = new TagMod();
+  mod->set(value);
+  return mod;
+}
+
+// ----------
+} // anon name space
+// ------------------------------------------------
+ControlBase::~ControlBase() {
+  this->clear();
+}
+
+void
+ControlBase::clear() {
+  _mods.delete_and_clear();
+}
+
+// static const modifier_el default_el = { MOD_INVALID, NULL };
+
+void
+ControlBase::Print() {
+  int n = _mods.length();
+
+  if (0 >= n) return;
+
+  printf("\t\t\t");
+  for (intptr_t i = 0; i < n; ++i) {
+    Modifier* cur_mod = _mods[i];
+    if (!cur_mod) printf("INVALID  ");
+    else cur_mod->print(stdout);
+  }
+  printf("\n");
+}
+
+char const *
+ControlBase::getSchemeModText() const {
+  char const* zret = 0;
+  Modifier* mod = this->findModOfType(Modifier::MOD_SCHEME);
+  if (mod) zret = static_cast<SchemeMod*>(mod)->getWksText();
+  return zret;
+}
+
+bool
+ControlBase::CheckModifiers(HttpRequestData * request_data) {
+  if (!request_data->hdr) {
+    //we use the same request_data for Socks as well (only IpMatcher)
+    //we just return false here
+    return true;
+  }
+
+  // If the incoming request has no tag but the entry does, or both
+  // have tags that do not match, then we do NOT have a match.
+  if (!request_data->tag && findModOfType(Modifier::MOD_TAG))
+    return false;
+
+  forv_Vec(Modifier, cur_mod, _mods)
+    if (cur_mod && ! cur_mod->check(request_data)) return false;
+
+  return true;
+}
+
+enum mod_errors {
+  ME_UNKNOWN,
+  ME_PARSE_FAILED,
+  ME_BAD_MOD,
+  ME_CALLEE_GENERATED
+};
+
+static const char *errorFormats[] = {
+  "Unknown error parsing modifier",
+  "Unable to parse modifier",
+  "Unknown modifier",
+  "Callee Generated",
+};
+
+ControlBase::Modifier*
+ControlBase::findModOfType(Modifier::Type t) const {
+  forv_Vec(Modifier, m, _mods)
+    if (m && t == m->type()) return m;
+  return 0;
+}
+
+const char *
+ControlBase::ProcessModifiers(matcher_line * line_info) {
+  // Variables for error processing
+  const char *errBuf = NULL;
+  mod_errors err = ME_UNKNOWN;
+
+  int n_elts = line_info->num_el; // Element count for line.
+
+  // No elements -> no modifiers.
+  if (0 >= n_elts) return 0;
+  // Can't have more modifiers than elements, so reasonable upper bound.
+  _mods.clear();
+  _mods.reserve(n_elts);
+
+  // As elements are consumed, the labels are nulled out and the element
+  // count decremented. So we have to scan the entire array to be sure of
+  // finding all the elements. We'll track the element count so we can
+  // escape if we've found all of the elements.
+  for (int i = 0; n_elts && ME_UNKNOWN == err && i < MATCHER_MAX_TOKENS; ++i) {
+    Modifier* mod = 0;
+
+    char * label = line_info->line[0][i];
+    char * value = line_info->line[1][i];
+
+    if (!label) continue; // Already use.
+    if (!value) {
+      err = ME_PARSE_FAILED;
+      break;
+    }
+
+    if (strcasecmp(label, "port") == 0) {
+      mod = PortMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "iport") == 0) {
+      mod = IPortMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "scheme") == 0) {
+      mod = SchemeMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "method") == 0) {
+      mod = MethodMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "prefix") == 0) {
+      mod = PrefixMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "suffix") == 0) {
+      mod = SuffixMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "src_ip") == 0) {
+      mod = SrcIPMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "time") == 0) {
+      mod = TimeMod::make(value, &errBuf);
+    } else if (strcasecmp(label, "tag") == 0) {
+      mod = TagMod::make(value, &errBuf);
+    } else {
+      err = ME_BAD_MOD;
+    }
+
+    if (errBuf) err = ME_CALLEE_GENERATED; // Mod make failed.
+
+    // If nothing went wrong, add the mod and bump the element count.
+    if (ME_UNKNOWN == err) {
+      _mods.push_back(mod);
+      --n_elts;
+    }
+  }
+
+  if (err != ME_UNKNOWN) {
+    this->clear();
+    if (err != ME_CALLEE_GENERATED) {
+      errBuf = errorFormats[err];
+    }
+  }
+
+  return errBuf;
+}
diff --git a/proxy/ControlBase.h b/proxy/ControlBase.h
new file mode 100644
index 00000000..f63c16f8
--- /dev/null
+++ b/proxy/ControlBase.h
@@ -0,0 +1,111 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  ControlBase.h - Base class to process generic modifiers to
+ *                         ControlMatcher Directives
+ *
+ *
+ ****************************************************************************/
+
+
+#ifndef _CONTROL_BASE_H_
+#define _CONTROL_BASE_H_
+
+#include "libts.h"
+
+class HttpRequestData;
+class Tokenizer;
+struct matcher_line;
+
+class ControlBase {
+public:
+  struct Modifier {
+    enum Type {
+      MOD_INVALID,
+      MOD_PORT,
+      MOD_SCHEME,
+      MOD_PREFIX,
+      MOD_SUFFIX,
+      MOD_METHOD,
+      MOD_TIME,
+      MOD_SRC_IP,
+      MOD_IPORT,
+      MOD_TAG
+    };
+    /// Destructor - force virtual.
+    virtual ~Modifier();
+    /// Return the modifier type.
+    virtual Type type() const;
+    /// Return the name for the modifier type.
+    virtual char const* name() const = 0;
+    /** Test if the modifier matches the request.
+        @return @c true if the request is matched, @c false if not.
+    */
+    virtual bool check(
+      HttpRequestData* req ///< Request to check.
+    ) const = 0;
+    /// Print the mod information.
+    virtual void print(
+      FILE* f ///< Output stream.
+    ) const = 0;
+  };
+
+  ControlBase();
+  ~ControlBase();
+  const char *ProcessModifiers(matcher_line * line_info);
+  bool CheckModifiers(HttpRequestData * request_data);
+  bool CheckForMatch(HttpRequestData * request_data, int last_number);
+  void Print();
+  int line_num;
+  Modifier* findModOfType(Modifier::Type t) const;
+protected:
+  /// Get the text for the Scheme modifier, if any.
+  /// @return The text if present, 0 otherwise.
+  /// @internal Ugly but it's the only place external access is needed.
+  char const* getSchemeModText() const;
+private:
+  typedef Vec<Modifier*> Array;
+  Array _mods;
+  const char *ProcessSrcIp(char *val, void **opaque_ptr);
+  const char *ProcessTimeOfDay(char *val, void **opaque_ptr);
+  const char *ProcessPort(char *val, void **opaque_ptr);
+
+  // Reset to default constructed state, free all allocations.
+  void clear();
+};
+
+inline
+ControlBase::ControlBase()
+  : line_num(0) {
+}
+
+inline bool
+ControlBase::CheckForMatch(HttpRequestData * request_data, int last_number) {
+  return (last_number<0 || last_number> this->line_num)
+    && this->CheckModifiers(request_data)
+    ;
+}
+
+#endif
diff --git a/proxy/ControlMatcher.cc b/proxy/ControlMatcher.cc
new file mode 100644
index 00000000..c7d8929e
--- /dev/null
+++ b/proxy/ControlMatcher.cc
@@ -0,0 +1,1029 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  ControlMatcher.cc - Implementation of general purpose matcher
+ *
+ *
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include <sys/types.h>
+#include "Main.h"
+#include "ProxyConfig.h"
+#include "ControlMatcher.h"
+#include "CacheControl.h"
+#include "ParentSelection.h"
+#include "HostLookup.h"
+#include "HTTP.h"
+#include "URL.h"
+#include "P_EventSystem.h"
+#include "P_Net.h"
+#include "P_Cache.h"
+#include "P_SplitDNS.h"
+#include "congest/Congestion.h"
+
+/****************************************************************
+ *   Place all template instantiations at the bottom of the file
+ ****************************************************************/
+
+
+
+// HttpRequestData accessors
+//   Can not be inlined due being virtual functions
+//
+char *
+HttpRequestData::get_string()
+{
+  char *str = hdr->url_string_get(NULL);
+
+  if (str)
+    unescapifyStr(str);
+  return str;
+}
+
+const char *
+HttpRequestData::get_host()
+{
+  return hostname_str;
+}
+
+sockaddr const*
+HttpRequestData::get_ip()
+{
+  return &dest_ip.sa;
+}
+
+sockaddr const*
+HttpRequestData::get_client_ip()
+{
+  return &src_ip.sa;
+}
+
+/*************************************************************
+ *   Begin class HostMatcher
+ *************************************************************/
+
+template<class Data, class Result> HostMatcher<Data, Result>::HostMatcher(const char *name, const char *filename)
+  : data_array(NULL),
+    array_len(-1),
+    num_el(-1),
+    matcher_name(name),
+    file_name(filename)
+{
+  host_lookup = new HostLookup(name);
+}
+
+template<class Data, class Result> HostMatcher<Data, Result>::~HostMatcher()
+{
+  delete host_lookup;
+  delete[]data_array;
+}
+
+//
+// template <class Data,class Result>
+// void HostMatcher<Data,Result>::Print()
+//
+//  Debugging Method
+//
+template<class Data, class Result> void HostMatcher<Data, Result>::Print()
+{
+
+  printf("\tHost/Domain Matcher with %d elements\n", num_el);
+  host_lookup->Print(PrintFunc);
+}
+
+//
+// template <class Data,class Result>
+// void HostMatcher<Data,Result>::PrintFunc(void* opaque_data)
+//
+//  Debugging Method
+//
+template<class Data, class Result> void HostMatcher<Data, Result>::PrintFunc(void *opaque_data)
+{
+  Data *d = (Data *) opaque_data;
+  d->Print();
+}
+
+// void HostMatcher<Data,Result>::AllocateSpace(int num_entries)
+//
+//  Allocates the the HostLeaf and Data arrays
+//
+template<class Data, class Result> void HostMatcher<Data, Result>::AllocateSpace(int num_entries)
+{
+  // Should not have been allocated before
+  ink_assert(array_len == -1);
+
+  host_lookup->AllocateSpace(num_entries);
+
+  data_array = new Data[num_entries];
+
+  array_len = num_entries;
+  num_el = 0;
+}
+
+// void HostMatcher<Data,Result>::Match(RequestData* rdata, Result* result)
+//
+//  Searches our tree and updates argresult for each element matching
+//    arg hostname
+//
+template<class Data, class Result> void HostMatcher<Data, Result>::Match(RequestData * rdata, Result * result)
+{
+  void *opaque_ptr;
+  Data *data_ptr;
+  bool r;
+
+  // Check to see if there is any work to do before makeing
+  //   the stirng copy
+  if (num_el <= 0) {
+    return;
+  }
+
+  HostLookupState s;
+
+  r = host_lookup->MatchFirst(rdata->get_host(), &s, &opaque_ptr);
+
+  while (r == true) {
+    ink_assert(opaque_ptr != NULL);
+    data_ptr = (Data *) opaque_ptr;
+    data_ptr->UpdateMatch(result, rdata);
+
+    r = host_lookup->MatchNext(&s, &opaque_ptr);
+  }
+}
+
+//
+// char* HostMatcher<Data,Result>::NewEntry(bool domain_record,
+//          char* match_data, char* match_info, int line_num)
+//
+//   Creates a new host/domain record
+//
+//   If successful, returns NULL
+//   If not, returns a pointer to malloc allocated error string
+//     that the caller MUST DEALLOCATE
+//
+template<class Data, class Result> char *HostMatcher<Data, Result>::NewEntry(matcher_line * line_info)
+{
+  Data *cur_d;
+  char *errBuf;
+  char *match_data;
+
+  // Make sure space has been allocated
+  ink_assert(num_el >= 0);
+  ink_assert(array_len >= 0);
+
+  // Make sure we do not overrun the array;
+  ink_assert(num_el < array_len);
+
+  match_data = line_info->line[1][line_info->dest_entry];
+
+  // Make sure that the line_info is not bogus
+  ink_assert(line_info->dest_entry < MATCHER_MAX_TOKENS);
+  ink_assert(match_data != NULL);
+
+  // Remove our consumed label from the parsed line
+  line_info->line[0][line_info->dest_entry] = 0;
+  line_info->num_el--;
+
+  // Fill in the parameter info
+  cur_d = data_array + num_el;
+  errBuf = cur_d->Init(line_info);
+
+  if (errBuf != NULL) {
+    // There was a problem so undo the effects this function
+    memset(cur_d, 0, sizeof(Data));
+    return errBuf;
+  }
+  // Fill in the matching info
+  host_lookup->NewEntry(match_data, (line_info->type == MATCH_DOMAIN) ? true : false, cur_d);
+
+  num_el++;
+  return NULL;
+}
+
+/*************************************************************
+ *   End class HostMatcher
+ *************************************************************/
+
+//
+// UrlMatcher<Data,Result>::UrlMatcher()
+//
+template<class Data, class Result> UrlMatcher<Data, Result>::UrlMatcher(const char *name, const char *filename)
+  : url_ht(NULL),
+    num_el(-1),
+    matcher_name(name),
+    file_name(filename)
+{
+  url_ht = ink_hash_table_create(InkHashTableKeyType_String);
+}
+
+//
+// UrlMatcher<Data,Result>::~UrlMatcher()
+//
+template<class Data, class Result> UrlMatcher<Data, Result>::~UrlMatcher()
+{
+  ink_hash_table_destroy(url_ht);
+  for (int i = 0; i < num_el; i++) {
+    ats_free(url_str[i]);
+  }
+  delete[]url_str;
+  delete[]url_value;
+  delete[]data_array;
+}
+
+//
+// void UrlMatcher<Data,Result>::Print()
+//
+//   Debugging function
+//
+template<class Data, class Result> void UrlMatcher<Data, Result>::Print()
+{
+  printf("\tUrl Matcher with %d elements\n", num_el);
+  for (int i = 0; i < num_el; i++) {
+    printf("\t\tUrl: %s\n", url_str[i]);
+    data_array[i].Print();
+  }
+}
+
+//
+// void UrlMatcher<Data,Result>::AllocateSpace(int num_entries)
+//
+template<class Data, class Result> void UrlMatcher<Data, Result>::AllocateSpace(int num_entries)
+{
+  // Should not have been allocated before
+  ink_assert(array_len == -1);
+
+  data_array = new Data[num_entries];
+  url_value = new int [num_entries];
+  url_str = new char *[num_entries];
+  memset(url_str, 0, sizeof(char *) * num_entries);
+  array_len = num_entries;
+  num_el = 0;
+}
+
+//
+// char* UrlMatcher<Data,Result>::NewEntry(matcher_line* line_info)
+//
+template<class Data, class Result> char *UrlMatcher<Data, Result>::NewEntry(matcher_line * line_info)
+{
+  Data *cur_d;
+  char *errBuf;
+  char *pattern;
+  int *value;
+
+  // Make sure space has been allocated
+  ink_assert(num_el >= 0);
+  ink_assert(array_len >= 0);
+
+  // Make sure we do not overrun the array;
+  ink_assert(num_el < array_len);
+
+  pattern = line_info->line[1][line_info->dest_entry];
+  // Make sure that the line_info is not bogus
+  ink_assert(line_info->dest_entry < MATCHER_MAX_TOKENS);
+  ink_assert(pattern != NULL);
+
+  if (ink_hash_table_lookup(url_ht, pattern, (void **)&value)) {
+    errBuf = (char *)ats_malloc(1024 * sizeof(char));
+    *errBuf = '\0';
+    snprintf(errBuf, 1024, "%s url expression error(have exist) at line %d position",
+                 matcher_name, line_info->line_num);
+    return errBuf;
+  }
+  
+  // Remove our consumed label from the parsed line
+  line_info->line[0][line_info->dest_entry] = 0;
+  line_info->num_el--;
+
+  // Fill in the parameter info
+  cur_d = data_array + num_el;
+  errBuf = cur_d->Init(line_info);
+
+  if (errBuf == NULL) {
+    url_str[num_el] = ats_strdup(pattern);
+    url_value[num_el] = num_el;
+    ink_hash_table_insert(url_ht, url_str[num_el], (void *)&url_value[num_el]);
+    num_el++;
+  }
+  return errBuf;
+}
+
+//
+// void UrlMatcher<Data,Result>::Match(RD* rdata, Result* result)
+//
+//   Coduncts a linear search through the regex array and
+//     updates arg result for each regex that matches arg URL
+//
+template<class Data, class Result> void UrlMatcher<Data, Result>::Match(RequestData * rdata, Result * result)
+{
+  char *url_str;
+  int *value;
+  
+  // Check to see there is any work to before we copy the
+  //   URL
+  if (num_el <= 0) {
+    return;
+  }
+
+  url_str = rdata->get_string();
+
+  // Can't do a regex match with a NULL string so
+  //  use an empty one instead
+  if (url_str == NULL) {
+    url_str = ats_strdup("");
+  }
+
+  if (ink_hash_table_lookup(url_ht, url_str, (void **)&value)) { 
+    Debug("matcher", "%s Matched %s with url at line %d", matcher_name, url_str, data_array[*value].line_num);
+    data_array[*value].UpdateMatch(result, rdata);
+  }
+
+  ats_free(url_str);
+}
+
+//
+// RegexMatcher<Data,Result>::RegexMatcher()
+//
+template<class Data, class Result> RegexMatcher<Data, Result>::RegexMatcher(const char *name, const char *filename)
+  : re_array(NULL),
+    re_str(NULL),
+    data_array(NULL),
+    array_len(-1),
+    num_el(-1),
+    matcher_name(name),
+    file_name(filename)
+{
+}
+
+//
+// RegexMatcher<Data,Result>::~RegexMatcher()
+//
+template<class Data, class Result> RegexMatcher<Data, Result>::~RegexMatcher()
+{
+  for (int i = 0; i < num_el; i++) {
+    pcre_free(re_array[i]);
+    ats_free(re_str[i]);
+  }
+  delete[]re_str;
+  ats_free(re_array);
+  delete[]data_array;
+}
+
+//
+// void RegexMatcher<Data,Result>::Print()
+//
+//   Debugging function
+//
+template<class Data, class Result> void RegexMatcher<Data, Result>::Print()
+{
+  printf("\tRegex Matcher with %d elements\n", num_el);
+  for (int i = 0; i < num_el; i++) {
+    printf("\t\tRegex: %s\n", re_str[i]);
+    data_array[i].Print();
+  }
+}
+
+//
+// void RegexMatcher<Data,Result>::AllocateSpace(int num_entries)
+//
+template<class Data, class Result> void RegexMatcher<Data, Result>::AllocateSpace(int num_entries)
+{
+  // Should not have been allocated before
+  ink_assert(array_len == -1);
+
+  re_array = (pcre**)ats_malloc(sizeof(pcre*) * num_entries);
+  memset(re_array, 0, sizeof(pcre*) * num_entries);
+
+  data_array = new Data[num_entries];
+
+  re_str = new char *[num_entries];
+  memset(re_str, 0, sizeof(char *) * num_entries);
+
+  array_len = num_entries;
+  num_el = 0;
+}
+
+//
+// char* RegexMatcher<Data,Result>::NewEntry(matcher_line* line_info)
+//
+template<class Data, class Result> char *RegexMatcher<Data, Result>::NewEntry(matcher_line * line_info)
+{
+  Data *cur_d;
+  char *errBuf;
+  char *pattern;
+  const char *error;
+  int erroffset;
+
+  // Make sure space has been allocated
+  ink_assert(num_el >= 0);
+  ink_assert(array_len >= 0);
+
+  // Make sure we do not overrun the array;
+  ink_assert(num_el < array_len);
+
+  pattern = line_info->line[1][line_info->dest_entry];
+  // Make sure that the line_info is not bogus
+  ink_assert(line_info->dest_entry < MATCHER_MAX_TOKENS);
+  ink_assert(pattern != NULL);
+
+  // Create the compiled regular expression
+  re_array[num_el] = pcre_compile(pattern, 0, &error, &erroffset, NULL);
+  if (!re_array[num_el]) {
+    errBuf = (char *)ats_malloc(1024 * sizeof(char));
+    *errBuf = '\0';
+    snprintf(errBuf, 1024, "%s regular expression error at line %d position %d : %s",
+                 matcher_name, line_info->line_num, erroffset, error);
+    re_array[num_el] = NULL;
+    return errBuf;
+  }
+  re_str[num_el] = ats_strdup(pattern);
+
+  // Remove our consumed label from the parsed line
+  line_info->line[0][line_info->dest_entry] = 0;
+  line_info->num_el--;
+
+  // Fill in the parameter info
+  cur_d = data_array + num_el;
+  errBuf = cur_d->Init(line_info);
+
+  if (errBuf == NULL) {
+    num_el++;
+  } else {
+    // There was a problem so undo the effects this function
+    ats_free(re_str[num_el]);
+    re_str[num_el] = NULL;
+    pcre_free(re_array[num_el]);
+    re_array[num_el] = NULL;
+  }
+
+  return errBuf;
+}
+
+//
+// void RegexMatcher<Data,Result>::Match(RequestData* rdata, Result* result)
+//
+//   Coduncts a linear search through the regex array and
+//     updates arg result for each regex that matches arg URL
+//
+template<class Data, class Result> void RegexMatcher<Data, Result>::Match(RequestData * rdata, Result * result)
+{
+  char *url_str;
+  int r;
+
+  // Check to see there is any work to before we copy the
+  //   URL
+  if (num_el <= 0) {
+    return;
+  }
+
+  url_str = rdata->get_string();
+
+  // Can't do a regex match with a NULL string so
+  //  use an empty one instead
+  if (url_str == NULL) {
+    url_str = ats_strdup("");
+  }
+  // INKqa12980
+  // The function unescapifyStr() is already called in
+  // HttpRequestData::get_string(); therefore, no need to call again here.
+  // unescapifyStr(url_str);
+
+  for (int i = 0; i < num_el; i++) {
+
+    r = pcre_exec(re_array[i], NULL, url_str, strlen(url_str), 0, 0, NULL, 0);
+    if (r > -1) {
+      Debug("matcher", "%s Matched %s with regex at line %d", matcher_name, url_str, data_array[i].line_num);
+      data_array[i].UpdateMatch(result, rdata);
+    } else if (r < -1) {
+      // An error has occured
+      Warning("Error [%d] matching regex at line %d.", r, data_array[i].line_num);
+    } // else it's -1 which means no match was found.
+
+  }
+  ats_free(url_str);
+}
+
+//
+// HostRegexMatcher<Data,Result>::HostRegexMatcher()
+//
+template<class Data, class Result>
+HostRegexMatcher<Data, Result>::HostRegexMatcher(const char *name, const char *filename)
+    : RegexMatcher <Data, Result>(name, filename)
+{
+}
+
+//
+// void HostRegexMatcher<Data,Result>::Match(RequestData* rdata, Result* result)
+//
+//   Conducts a linear search through the regex array and
+//     updates arg result for each regex that matches arg host_regex
+//
+template<class Data, class Result> void HostRegexMatcher<Data, Result>::Match(RequestData * rdata, Result * result)
+{
+  const char *url_str;
+  int r;
+
+  // Check to see there is any work to before we copy the
+  //   URL
+  if (this->num_el <= 0) {
+    return;
+  }
+
+  url_str = rdata->get_host();
+
+  // Can't do a regex match with a NULL string so
+  //  use an empty one instead
+  if (url_str == NULL) {
+    url_str = "";
+  }
+  for (int i = 0; i < this->num_el; i++) {
+    r = pcre_exec(this->re_array[i], NULL, url_str, strlen(url_str), 0, 0, NULL, 0);
+    if (r != -1) {
+      Debug("matcher", "%s Matched %s with regex at line %d",
+            const_cast<char*>(this->matcher_name), url_str, this->data_array[i].line_num);
+      this->data_array[i].UpdateMatch(result, rdata);
+    } else {
+      // An error has occured
+      Warning("error matching regex at line %d", this->data_array[i].line_num);
+    }
+  }
+}
+
+//
+// IpMatcher<Data,Result>::IpMatcher()
+//
+template<class Data, class Result> IpMatcher<Data, Result>::IpMatcher(const char *name, const char *filename)
+  : data_array(NULL),
+    array_len(-1),
+    num_el(-1),
+    matcher_name(name),
+    file_name(filename)
+{
+}
+
+//
+// IpMatcher<Data,Result>::~IpMatcher()
+//
+template<class Data, class Result> IpMatcher<Data, Result>::~IpMatcher()
+{
+  delete[]data_array;
+}
+
+//
+// void IpMatcher<Data,Result>::AllocateSpace(int num_entries)
+//
+template<class Data, class Result> void IpMatcher<Data, Result>::AllocateSpace(int num_entries)
+{
+  // Should not have been allocated before
+  ink_assert(array_len == -1);
+
+  data_array = new Data[num_entries];
+
+  array_len = num_entries;
+  num_el = 0;
+}
+
+//
+// char* IpMatcher<Data,Result>::NewEntry(matcher_line* line_info)
+//
+//    Inserts a range the ip lookup table.
+//        Creates new table levels as needed
+//
+//    Returns NULL is all was OK.  On error returns, a malloc
+//     allocated error string which the CALLEE is responsible
+//     for deallocating
+//
+template<class Data, class Result> char *IpMatcher<Data, Result>::NewEntry(matcher_line * line_info)
+{
+
+  Data *cur_d;
+  const char *errPtr;
+  char *errBuf;
+  char *match_data;
+  IpEndpoint addr1, addr2;
+
+  // Make sure space has been allocated
+  ink_assert(num_el >= 0);
+  ink_assert(array_len >= 0);
+
+  // Make sure we do not overrun the array;
+  ink_assert(num_el < array_len);
+
+  match_data = line_info->line[1][line_info->dest_entry];
+
+  // Make sure that the line_info is not bogus
+  ink_assert(line_info->dest_entry < MATCHER_MAX_TOKENS);
+  ink_assert(match_data != NULL);
+
+  // Extract the IP range
+  errPtr = ExtractIpRange(match_data, &addr1.sa, &addr2.sa);
+  if (errPtr != NULL) {
+    const size_t errorSize = 1024;
+    errBuf = (char *)ats_malloc(errorSize * sizeof(char));
+    snprintf(errBuf, errorSize, "%s %s at %s line %d", matcher_name, errPtr, file_name, line_info->line_num);
+    return errBuf;
+  }
+
+  // Remove our consumed label from the parsed line
+  line_info->line[0][line_info->dest_entry] = NULL;
+  line_info->num_el--;
+
+  // Fill in the parameter info
+  cur_d = data_array + num_el;
+  errBuf = cur_d->Init(line_info);
+  if (errBuf != NULL) {
+    return errBuf;
+  }
+
+  ip_map.mark(&addr1.sa, &addr2.sa, cur_d);
+
+  ++num_el;
+  return NULL;
+}
+
+//
+// void IpMatcherData,Result>::Match(in_addr_t addr, RequestData* rdata, Result* result)
+//
+template<class Data, class Result>
+void IpMatcher<Data, Result>::Match(sockaddr const* addr, RequestData * rdata, Result * result)
+{
+  void* raw;
+  if (ip_map.contains(addr, &raw)) {
+    Data *cur = static_cast<Data*>(raw);
+    ink_assert(cur != 0);
+    cur->UpdateMatch(result, rdata);
+  }
+}
+
+
+template<class Data, class Result> void IpMatcher<Data, Result>::Print()
+{
+  printf("\tIp Matcher with %d elements, %zu ranges.\n", num_el, ip_map.getCount());
+  for ( IpMap::iterator spot(ip_map.begin()), limit(ip_map.end()) ; spot != limit ; ++spot) {
+    char b1[INET6_ADDRSTRLEN], b2[INET6_ADDRSTRLEN];
+    printf("\tRange %s - %s ",
+      ats_ip_ntop(spot->min(), b1, sizeof b1),
+      ats_ip_ntop(spot->max(), b2, sizeof b2)
+    );
+    static_cast<Data*>(spot->data())->Print();
+  }
+}
+
+template<class Data, class Result>
+ControlMatcher<Data, Result>::ControlMatcher(const char *file_var, const char *name, const matcher_tags * tags,
+                                             int flags_in)
+{
+  flags = flags_in;
+  ink_assert(flags & (ALLOW_HOST_TABLE | ALLOW_REGEX_TABLE | ALLOW_URL_TABLE | ALLOW_IP_TABLE));
+
+  config_tags = tags;
+  ink_assert(config_tags != NULL);
+
+  matcher_name = name;
+  config_file_path[0] = '\0';
+
+  if (!(flags & DONT_BUILD_TABLE)) {
+    xptr<char> config_path(RecConfigReadConfigPath(file_var));
+
+    ink_release_assert(config_path);
+    ink_strlcpy(config_file_path, config_path, sizeof(config_file_path));
+  }
+
+  reMatch = NULL;
+  urlMatch = NULL;
+  hostMatch = NULL;
+  ipMatch = NULL;
+  hrMatch = NULL;
+
+  if (!(flags & DONT_BUILD_TABLE)) {
+    m_numEntries = this->BuildTable();
+  } else {
+    m_numEntries = 0;
+  }
+}
+
+template<class Data, class Result> ControlMatcher<Data, Result>::~ControlMatcher()
+{
+
+  delete reMatch;
+  delete urlMatch;
+  delete hostMatch;
+  delete ipMatch;
+  delete hrMatch;
+}
+
+// void ControlMatcher<Data, Result>::Print()
+//
+//   Debugging method
+//
+template<class Data, class Result> void ControlMatcher<Data, Result>::Print()
+{
+  printf("Control Matcher Table: %s\n", matcher_name);
+  if (hostMatch != NULL) {
+    hostMatch->Print();
+  }
+  if (reMatch != NULL) {
+    reMatch->Print();
+  }
+  if (urlMatch != NULL) {
+    urlMatch->Print();
+  }
+  if (ipMatch != NULL) {
+    ipMatch->Print();
+  }
+  if (hrMatch != NULL) {
+    hrMatch->Print();
+  }
+}
+
+
+// void ControlMatcher<Data, Result>::Match(RequestData* rdata
+//                                          Result* result)
+//
+//   Queries each table for the Result*
+//
+template<class Data, class Result> void ControlMatcher<Data, Result>::Match(RequestData * rdata, Result * result)
+{
+  if (hostMatch != NULL) {
+    hostMatch->Match(rdata, result);
+  }
+  if (reMatch != NULL) {
+    reMatch->Match(rdata, result);
+  }
+  if (urlMatch != NULL) {
+    urlMatch->Match(rdata, result);
+  }
+  if (ipMatch != NULL) {
+    ipMatch->Match(rdata->get_ip(), rdata, result);
+  }
+  if (hrMatch != NULL) {
+    hrMatch->Match(rdata, result);
+  }
+}
+
+int fstat_wrapper(int fd, struct stat *s);
+
+// int ControlMatcher::BuildTable() {
+//
+//    Reads the cache.config file and build the records array
+//      from it
+//
+template<class Data, class Result> int ControlMatcher<Data, Result>::BuildTableFromString(char *file_buf)
+{
+  // Table build locals
+  Tokenizer bufTok("\n");
+  tok_iter_state i_state;
+  const char *tmp;
+  matcher_line *first = NULL;
+  matcher_line *current;
+  matcher_line *last = NULL;
+  int line_num = 0;
+  int second_pass = 0;
+  int numEntries = 0;
+  bool alarmAlready = false;
+  char errBuf[1024];
+  const char *errPtr = NULL;
+
+  // type counts
+  int hostDomain = 0;
+  int regex = 0;
+  int url = 0;
+  int ip = 0;
+  int hostregex = 0;
+
+  if (bufTok.Initialize(file_buf, SHARE_TOKS | ALLOW_EMPTY_TOKS) == 0) {
+    // We have an empty file
+    return 0;
+  }
+  // First get the number of entries
+  tmp = bufTok.iterFirst(&i_state);
+  while (tmp != NULL) {
+
+    line_num++;
+
+    // skip all blank spaces at beginning of line
+    while (*tmp && isspace(*tmp)) {
+      tmp++;
+    }
+
+    if (*tmp != '#' && *tmp != '\0') {
+
+      current = (matcher_line *)ats_malloc(sizeof(matcher_line));
+      errPtr = parseConfigLine((char *) tmp, current, config_tags);
+
+      if (errPtr != NULL) {
+        if (config_tags != &socks_server_tags) {
+          snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : %s",
+                   matcher_name, config_file_path, line_num, errPtr);
+          SignalError(errBuf, alarmAlready);
+        }
+        ats_free(current);
+      } else {
+
+        // Line parsed ok.  Figure out what the destination
+        //  type is and link it into our list
+        numEntries++;
+        current->line_num = line_num;
+
+        switch (current->type) {
+        case MATCH_HOST:
+        case MATCH_DOMAIN:
+          hostDomain++;
+          break;
+        case MATCH_IP:
+          ip++;
+          break;
+        case MATCH_REGEX:
+          regex++;
+          break;
+        case MATCH_URL:
+          url++;
+          break;
+        case MATCH_HOST_REGEX:
+          hostregex++;
+          break;
+        case MATCH_NONE:
+        default:
+          ink_assert(0);
+        }
+
+        if (first == NULL) {
+          ink_assert(last == NULL);
+          first = last = current;
+        } else {
+          last->next = current;
+          last = current;
+        }
+      }
+    }
+    tmp = bufTok.iterNext(&i_state);
+  }
+
+  // Make we have something to do before going on
+  if (numEntries == 0) {
+    ats_free(first);
+    return 0;
+  }
+  // Now allocate space for the record pointers
+  if ((flags & ALLOW_REGEX_TABLE) && regex > 0) {
+    reMatch = new RegexMatcher<Data, Result> (matcher_name, config_file_path);
+    reMatch->AllocateSpace(regex);
+  }
+
+  if ((flags & ALLOW_URL_TABLE) && url > 0) {
+    urlMatch = new UrlMatcher<Data, Result> (matcher_name, config_file_path);
+    urlMatch->AllocateSpace(url);
+  }
+
+  if ((flags & ALLOW_HOST_TABLE) && hostDomain > 0) {
+    hostMatch = new HostMatcher<Data, Result> (matcher_name, config_file_path);
+    hostMatch->AllocateSpace(hostDomain);
+  }
+
+  if ((flags & ALLOW_IP_TABLE) && ip > 0) {
+    ipMatch = new IpMatcher<Data, Result> (matcher_name, config_file_path);
+    ipMatch->AllocateSpace(ip);
+  }
+
+  if ((flags & ALLOW_HOST_REGEX_TABLE) && hostregex > 0) {
+    hrMatch = new HostRegexMatcher<Data, Result> (matcher_name, config_file_path);
+    hrMatch->AllocateSpace(hostregex);
+  }
+  // Traverse the list and build the records table
+  current = first;
+  while (current != NULL) {
+    second_pass++;
+    if ((flags & ALLOW_HOST_TABLE) && current->type == MATCH_DOMAIN) {
+      errPtr = hostMatch->NewEntry(current);
+    } else if ((flags & ALLOW_HOST_TABLE) && current->type == MATCH_HOST) {
+      errPtr = hostMatch->NewEntry(current);
+    } else if ((flags & ALLOW_REGEX_TABLE) && current->type == MATCH_REGEX) {
+      errPtr = reMatch->NewEntry(current);
+    } else if ((flags & ALLOW_URL_TABLE) && current->type == MATCH_URL) {
+      errPtr = urlMatch->NewEntry(current);
+    } else if ((flags & ALLOW_IP_TABLE) && current->type == MATCH_IP) {
+      errPtr = ipMatch->NewEntry(current);
+    } else if ((flags & ALLOW_HOST_REGEX_TABLE) && current->type == MATCH_HOST_REGEX) {
+      errPtr = hrMatch->NewEntry(current);
+    } else {
+      errPtr = NULL;
+      snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry with unknown type at line %d",
+               matcher_name, config_file_path, current->line_num);
+      SignalError(errBuf, alarmAlready);
+    }
+
+    // Check to see if there was an error in creating
+    //   the NewEntry
+    if (errPtr != NULL) {
+      SignalError(errPtr, alarmAlready);
+      //ats_free(errPtr); // XXX - why are we trying to free
+      errPtr = NULL;
+    }
+    // Deallocate the parsing structure
+    last = current;
+    current = current->next;
+    ats_free(last);
+  }
+
+  ink_assert(second_pass == numEntries);
+
+  if (is_debug_tag_set("matcher")) {
+    Print();
+  }
+  return numEntries;
+}
+
+template<class Data, class Result> int ControlMatcher<Data, Result>::BuildTable()
+{
+  // File I/O Locals
+  char *file_buf;
+  int ret;
+
+  file_buf = readIntoBuffer(config_file_path, matcher_name, NULL);
+
+  if (file_buf == NULL) {
+    return 1;
+  }
+
+  ret = BuildTableFromString(file_buf);
+  ats_free(file_buf);
+  return ret;
+}
+
+
+/****************************************************************
+ *    TEMPLATE INSTANTIATIONS GO HERE
+ *
+ *  We have to explicitly instantiate the templates so that
+ *   everything works on with dec ccx, sun CC, and g++
+ *
+ *  Details on the different comipilers:
+ *
+ *  dec ccx: Does not seem to instantiate anything automatically
+ *         so it needs all templates manually instantiated
+ *
+ *  sun CC: Automatic instantiation works but since we make
+ *         use of the templates in other files, instantiation
+ *         only occurs when those files are compiled, breaking
+ *         the dependency system.  Explict instantiation
+ *         in this file causes the templates to be reinstantiated
+ *         when this file changes.
+ *
+ *         Also, does not give error messages about template
+ *           compliation problems.  Requires the -verbose=template
+ *           flage to error messages
+ *
+ *  g++: Requires instantiation to occur in the same file as the
+ *         the implementation.  Instantiating ControlMatcher
+ *         automatically instatiatiates the other templates since
+ *         ControlMatcher makes use of them
+ *
+ ****************************************************************/
+
+template class ControlMatcher<ParentRecord, ParentResult>;
+template class HostMatcher<ParentRecord, ParentResult>;
+template class RegexMatcher<ParentRecord, ParentResult>;
+template class UrlMatcher<ParentRecord, ParentResult>;
+template class IpMatcher<ParentRecord, ParentResult>;
+template class HostRegexMatcher<ParentRecord, ParentResult>;
+
+template class ControlMatcher<SplitDNSRecord, SplitDNSResult>;
+template class HostMatcher<SplitDNSRecord, SplitDNSResult>;
+template class RegexMatcher<SplitDNSRecord, SplitDNSResult>;
+template class UrlMatcher<SplitDNSRecord, SplitDNSResult>;
+template class IpMatcher<SplitDNSRecord, SplitDNSResult>;
+template class HostRegexMatcher<SplitDNSRecord, SplitDNSResult>;
+
+template class ControlMatcher<CacheControlRecord, CacheControlResult>;
+template class HostMatcher<CacheControlRecord, CacheControlResult>;
+template class RegexMatcher<CacheControlRecord, CacheControlResult>;
+template class UrlMatcher<CacheControlRecord, CacheControlResult>;
+template class IpMatcher<CacheControlRecord, CacheControlResult>;
+
+template class ControlMatcher<CongestionControlRecord, CongestionControlRule>;
+template class HostMatcher<CongestionControlRecord, CongestionControlRule>;
+template class HostRegexMatcher<CongestionControlRecord, CongestionControlRule>;
+template class RegexMatcher<CongestionControlRecord, CongestionControlRule>;
+template class UrlMatcher<CongestionControlRecord, CongestionControlRule>;
+template class IpMatcher<CongestionControlRecord, CongestionControlRule>;
diff --git a/proxy/ControlMatcher.h b/proxy/ControlMatcher.h
new file mode 100644
index 00000000..c78db65e
--- /dev/null
+++ b/proxy/ControlMatcher.h
@@ -0,0 +1,301 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  ControlMatcher.h - Interface to general purpose matcher
+ *
+ *
+ *
+ *
+ *  Description:
+ *
+ *     The control matcher module provides the ability to lookup arbitrary
+ *  information specific to a URL and IP address.  The outside
+ *  world only sees the ControlMatcher class which parses the relevant
+ *  configuration file and builds the lookup table
+ *
+ *     Four types of matched are supported: hostname, domain name, ip address
+ *  and URL regex.  For these four types, three lookup tables are used.  Regex and
+ *  ip lookups have there own tables and host and domain lookups share a single
+ *  table
+ *
+ *  Module Purpose & Specifications
+ *  -------------------------------
+ *   -  to provide a generic mechanism for matching configuration data
+ *       against hostname, domain name, ip address and URL regex
+ *   -  the generic mechanism should require minimum effort to apply it
+ *       to new features that require per request matching
+ *   -  for the mechanism to be efficient such that lookups against
+ *       the tables are not a performance problem when they are both done
+ *       for every request through the proxy and set of matching
+ *       is very large
+ *
+ *  Lookup Table Descriptions
+ *  -------------------------
+ *
+ *   regex table - implemented as a linear list of regular expressions to
+ *       match against
+ *
+ *   host/domain table - The host domain table is logically implemented as
+ *       tree, broken up at each partition in a hostname.  Three mechanism
+ *       are used to move from one level to the next: a hash table, a fixed
+ *       sized array and a constant time index (class charIndex).  The constant
+ *       time index is only used to from the root domain to the first
+ *       level partition (ie: .com). The fixed array is used for subsequent
+ *       paritions until the fan out exceeds the arrays fixed size at which
+ *       time, the fixed array is converted to a hash table
+ *
+ *   ip table - supports ip ranges.  A single ip address is treated as
+ *       a range with the same beginning and end address.  The table is
+ *       is devided up into a fixed number of  levels, indexed 8 bit
+ *       boundaries, starting at the the high bit of the address.  Subsequent
+ *       levels are allocated only when needed.
+ *
+ ****************************************************************************/
+
+//
+// IMPORTANT: Instantiating these templates
+//
+//    The Implementation for these templates appears in
+//     ControlMatcher.cc   To get the templates instantiated
+//     correctly on all compilers new uses MUST explicitly
+//     instantiate the new instance at the bottom of
+//     ControlMatcher.cc
+//
+
+#ifndef _CONTROL_MATCHER_H_
+#define _CONTROL_MATCHER_H_
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+
+#include "DynArray.h"
+#include <ts/IpMap.h>
+
+#include "ink_defs.h"
+#include "HTTP.h"
+#include "ink_apidefs.h"
+
+class HostLookup;
+struct _HttpApiInfo;
+struct matcher_line;
+struct matcher_tags;
+
+struct RequestData
+{
+public:
+  // First three are the lookup keys to the tables
+  //  get_ip() can be either client_ip or server_ip
+  //  depending on how the module user wants to key
+  //  the table
+  virtual ~ RequestData()
+  {
+  }
+  virtual char *get_string() = 0;
+  virtual const char *get_host() = 0;
+  virtual sockaddr const* get_ip() = 0;
+
+  virtual sockaddr const* get_client_ip() = 0;
+
+  enum RD_Type
+  {
+    RD_NULL,
+    RD_HTTP,
+    RD_CONGEST_ENTRY
+  };
+
+  virtual RD_Type data_type(void) { return RD_NULL; }
+};
+
+class HttpRequestData:public RequestData
+{
+public:
+  inkcoreapi char *get_string();
+  inkcoreapi const char *get_host();
+  inkcoreapi sockaddr const* get_ip();
+  inkcoreapi sockaddr const* get_client_ip();
+
+  HttpRequestData()
+    : hdr(NULL), hostname_str(NULL), api_info(NULL), xact_start(0), incoming_port(0), tag(NULL)
+  { 
+    ink_zero(src_ip);
+    ink_zero(dest_ip);
+  }
+
+  HTTPHdr *hdr;
+  char *hostname_str;
+  _HttpApiInfo *api_info;
+  time_t xact_start;
+  IpEndpoint src_ip;
+  IpEndpoint dest_ip;
+  uint16_t incoming_port;
+  char *tag;
+};
+
+
+template<class Data, class Result> class UrlMatcher {
+public:
+  UrlMatcher(const char *name, const char *filename);
+  ~UrlMatcher();
+  void Match(RequestData * rdata, Result * result);
+  void AllocateSpace(int num_entries);
+  char *NewEntry(matcher_line * line_info);
+  void Print();
+
+  int getNumElements() { return num_el; }
+  Data *getDataArray() { return data_array; }
+
+protected:
+  InkHashTable *url_ht;
+  char **url_str;                // array of url strings
+  int  *url_value;                // array of posion of url strings
+  Data *data_array;             // data array.  Corresponds to re_array
+  int array_len;                // length of the arrays (all three are the same length)
+  int num_el;                   // number of elements in the table
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+  const char *file_name;        // Used for Debug/Warning/Error messages
+};
+
+
+template<class Data, class Result> class RegexMatcher {
+public:
+  RegexMatcher(const char *name, const char *filename);
+  ~RegexMatcher();
+  void Match(RequestData * rdata, Result * result);
+  void AllocateSpace(int num_entries);
+  char *NewEntry(matcher_line * line_info);
+  void Print();
+
+  int getNumElements() { return num_el; }
+  Data *getDataArray() { return data_array; }
+
+protected:
+  pcre** re_array;              // array of compiled regexs
+  char **re_str;                // array of uncompiled regex strings
+  Data *data_array;             // data array.  Corresponds to re_array
+  int array_len;                // length of the arrays (all three are the same length)
+  int num_el;                   // number of elements in the table
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+  const char *file_name;        // Used for Debug/Warning/Error messages
+};
+
+template<class Data, class Result> class HostRegexMatcher:public RegexMatcher<Data, Result> {
+public:
+  HostRegexMatcher(const char *name, const char *filename);
+  void Match(RequestData * rdata, Result * result);
+};
+
+template<class Data, class Result> class HostMatcher {
+public:
+  HostMatcher(const char *name, const char *filename);
+  ~HostMatcher();
+  void Match(RequestData * rdata, Result * result);
+  void AllocateSpace(int num_entries);
+  char *NewEntry(matcher_line * line_info);
+  void Print();
+
+  int getNumElements() { return num_el; }
+  Data *getDataArray() { return data_array; }
+  HostLookup *getHLookup() { return host_lookup; }
+
+private:
+  static void PrintFunc(void *opaque_data);
+  HostLookup *host_lookup;      // Data structure to do the lookups
+  Data *data_array;             // array of all data items
+  int array_len;                // the length of the arrays
+  int num_el;                   // the numbe of itmems in the tree
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+  const char *file_name;        // Used for Debug/Warning/Error messages
+};
+
+template<class Data, class Result> class IpMatcher {
+public:
+  IpMatcher(const char *name, const char *filename);
+  ~IpMatcher();
+  void Match(sockaddr const* ip_addr, RequestData * rdata, Result * result);
+  void AllocateSpace(int num_entries);
+  char *NewEntry(matcher_line * line_info);
+  void Print();
+
+  int getNumElements() { return num_el; }
+  Data *getDataArray() { return data_array; }
+
+  static void PrintFunc(void *opaque_data);
+  IpMap ip_map;                 // Data structure to do lookups
+  Data *data_array;             // array of the data lements with in the table
+  int array_len;                // size of the arrays
+  int num_el;                   // number of elements in the table
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+  const char *file_name;        // Used for Debug/Warning/Error messages
+};
+
+
+#define ALLOW_HOST_TABLE   1 << 0
+#define ALLOW_IP_TABLE     1 << 1
+#define ALLOW_REGEX_TABLE  1 << 2
+#define ALLOW_HOST_REGEX_TABLE 1 << 3
+#define ALLOW_URL_TABLE 1 << 4
+#define DONT_BUILD_TABLE     1 << 5     // for testing
+
+template<class Data, class Result> class ControlMatcher {
+public:
+  // Parameter name must not be deallocated before this
+  //  object is
+  ControlMatcher(const char *file_var, const char *name, const matcher_tags * tags,
+                 int flags_in = (ALLOW_HOST_TABLE | ALLOW_IP_TABLE | ALLOW_REGEX_TABLE |
+                                 ALLOW_HOST_REGEX_TABLE | ALLOW_URL_TABLE));
+  ~ControlMatcher();
+  int BuildTable();
+  int BuildTableFromString(char *str);
+  void Match(RequestData * rdata, Result * result);
+  void Print();
+
+  int getEntryCount() { return m_numEntries; }
+  HostMatcher<Data, Result> *getHostMatcher() { return hostMatch; }
+  RegexMatcher<Data, Result> *getReMatcher() { return reMatch; }
+  UrlMatcher<Data, Result> *getUrlMatcher() { return urlMatch; }
+  IpMatcher<Data, Result> *getIPMatcher() { return ipMatch; }
+  HostRegexMatcher<Data, Result> *getHrMatcher() { return hrMatch; }
+
+  //private:
+  RegexMatcher<Data, Result> *reMatch;
+  UrlMatcher<Data, Result> *urlMatch;
+  HostMatcher<Data, Result> *hostMatch;
+  IpMatcher<Data, Result> *ipMatch;
+  HostRegexMatcher<Data, Result> *hrMatch;
+  const matcher_tags *config_tags;
+  char config_file_path[PATH_NAME_MAX];
+  int flags;
+  int m_numEntries;
+  const char *matcher_name;     // Used for Debug/Warning/Error messages
+};
+
+#endif /* _CONTROL_MATCHER_H_ */
diff --git a/proxy/CoreUtils.cc b/proxy/CoreUtils.cc
new file mode 100644
index 00000000..fe0bb532
--- /dev/null
+++ b/proxy/CoreUtils.cc
@@ -0,0 +1,1055 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   CoreUtils.cc
+
+   Description:  Automated processing of core files on Linux
+ ****************************************************************************/
+
+
+/*
+   Stack Unwinding procedure on ix86 architecture on Linux :
+   Get the first frame pointer in $ebp.
+   The value stored in $ebp is the address of prev frame pointer.
+   Keep on unwinding till it is Ox0.
+   $ebp+4 in each frame represents $eip.(PC)
+*/
+
+/*
+ *  Accessing arguments on 386 :
+ *  ----------------------------
+ *  We need to start from $ebp+4 and then keep on reading args
+ *  till we reach the base pointer for prev. frame
+ *
+ *
+ *        (high memory)
+ *    +                     +
+ *    | Callers Stack Frame |
+ *    +---------------------+
+ *    |   function call     |
+ *    |     arguments       |
+ *    +---------------------+
+ *    |   Return Address    +
+ *    +-------------------- +
+ *    |    Old base pointer + Base pointer BP
+ *    +-------------------- +
+ *    |                     |
+ *    |                     |
+ *    |                     | Local (automatic) variables
+ *    |                     |
+ *    |                     |
+ *    |                     |
+ *    |                     |
+ *    |                     |
+ *    |                     |
+ *    +---------------------+ Stack pointer SP
+ *    |     free stack      | (low memory, top of the stack)
+ *    |    begins here      |
+ *    +                     +
+ *
+ *
+ *	  +-----------------+     +-----------------+
+ *  FP -> | previous FP --------> | previous FP ------>...
+ *	  |                 |     |                 |
+ *        | return address  |     | return address  |
+ *        +-----------------+     +-----------------+
+ */
+
+/*
+   PORTING ISSUES:
+   read_core_memory read_core_memory II read_heap_header not used
+   -> figure out some way to make print_netstate useful!
+*/
+
+/* 32-bit arguments are pushed down stack in reverse syntactic order (hence accessed/popped in the right order), above the 32-bit near return address. %ebp, %esi, %edi, %ebx are callee-saved, other registers are caller-saved; %eax is to hold the result, or %edx:%eax for 64-bit results */
+
+/*    has -fomit-frame-pointer has any repercussions??
+      We assume that all the code is generated with frame pointers set.  */
+
+/* modify the "note" in process_core */
+/* Document properly */
+
+#include "ink_config.h"
+
+#if defined(linux)
+#include "CoreUtils.h"
+
+#define __p_type p_type         //ugly hack? - see resolv.h
+#define D(x) x                  /* for debugging */
+intptr_t f1, f2;
+int framepointer = 0;
+int program_counter = 0;
+#endif  // linux check
+
+#if defined(darwin) || defined(freebsd) || defined(solaris) || defined(openbsd) // FIXME: solaris x86
+// TODO: Cleanup multiple includes
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <math.h>
+#include "libts.h"
+#include "CoreUtils.h"
+#endif /* darwin || freebsd || solaris */
+
+#include "EventName.h"
+
+#include "http/HttpSM.h"
+
+bool inTable;
+FILE *fp;
+memTable default_memTable = { 0, 0, 0 };
+DynArray<struct memTable>arrayMem(&default_memTable, 0);
+
+HTTPHdrImpl *global_http;
+HttpSM *last_seen_http_sm = NULL;
+
+char ethread_ptr_str[256] = "";
+char netvc_ptr_str[256] = "";
+
+HdrHeap *swizzle_heap;
+char *ptr_data;
+
+
+// returns the index of the vaddr or the index after where it should be
+intptr_t
+CoreUtils::find_vaddr(intptr_t vaddr, intptr_t upper, intptr_t lower)
+{
+  intptr_t index = (intptr_t) floor((double)((upper + lower) / 2));
+
+  // match in table, returns index to be inserted into
+  if (arrayMem[index].vaddr == vaddr) {
+    inTable = true;
+    return index + 1;
+    // no match
+  } else if (upper == lower) {
+    inTable = false;
+    return upper;
+    // no match
+  } else if (index == lower) {
+    inTable = false;
+    if ((index == 0) && (arrayMem[index].vaddr > vaddr))
+      return 0;
+    else
+      return index + 1;
+  } else {
+    if (arrayMem[index].vaddr > vaddr)
+      return find_vaddr(vaddr, index, lower);
+    else
+      return find_vaddr(vaddr, upper, index);
+  }
+  assert(0);
+  return -1;
+}
+
+// inserts virtual address struct into the list
+void
+CoreUtils::insert_table(intptr_t vaddr1, intptr_t offset1, intptr_t fsize1)
+{
+  // TODO: What was this intended for??
+#if 0
+  memTable m;
+  m.vaddr = vaddr1;
+  m.offset = offset1;
+  m.fsize = fsize1;
+#endif
+
+  if (arrayMem.length() == 0) {
+    arrayMem(0);
+    arrayMem[(intptr_t)0].vaddr = vaddr1;
+    arrayMem[(intptr_t)0].offset = offset1;
+    arrayMem[(intptr_t)0].fsize = fsize1;
+  } else {
+    intptr_t index = find_vaddr(vaddr1, arrayMem.length(), 0);
+    if (index == arrayMem.length()) {
+      arrayMem(index);
+      arrayMem[index].vaddr = vaddr1;
+      arrayMem[index].offset = offset1;
+      arrayMem[index].fsize = fsize1;
+    } else if (index == 0) {
+      arrayMem(arrayMem.length());
+      for (intptr_t i = 0; i < arrayMem.length(); i++) {
+        arrayMem[arrayMem.length() - i - 1].vaddr = arrayMem[arrayMem.length() - i - 2].vaddr;
+        arrayMem[arrayMem.length() - i - 1].offset = arrayMem[arrayMem.length() - i - 2].offset;
+        arrayMem[arrayMem.length() - i - 1].fsize = arrayMem[arrayMem.length() - i - 2].fsize;
+      }
+      arrayMem[(intptr_t)0].vaddr = vaddr1;
+      arrayMem[(intptr_t)0].offset = offset1;
+      arrayMem[(intptr_t)0].fsize = fsize1;
+    } else {
+      arrayMem(arrayMem.length());
+      for (intptr_t i = 1; i < arrayMem.length() - index; i++) {
+        arrayMem[arrayMem.length() - i].vaddr = arrayMem[arrayMem.length() - i - 1].vaddr;
+        arrayMem[arrayMem.length() - i].offset = arrayMem[arrayMem.length() - i - 1].offset;
+        arrayMem[arrayMem.length() - i].fsize = arrayMem[arrayMem.length() - i - 1].fsize;
+      }
+      arrayMem[index].vaddr = vaddr1;
+      arrayMem[index].offset = offset1;
+      arrayMem[index].fsize = fsize1;
+    }
+  }
+}
+
+
+// returns -1 if not found in table or fills the buffer with characters
+// from the beginning of the memory section
+intptr_t
+CoreUtils::read_core_memory(intptr_t vaddr, intptr_t length, char *buf, FILE * fp)
+{
+  intptr_t index = find_vaddr(vaddr, arrayMem.length(), 0);
+  if (inTable == false)
+    return -1;
+  else {
+    intptr_t offset = arrayMem[index].offset;
+
+    if (fseek(fp, offset, SEEK_SET) != -1) {
+      for (int j = 0; j < length; j++) {
+        *buf++ = (char) getc(fp);
+      }
+      buf -= length;
+    }
+    return 1;
+  }
+}
+
+// returns -1 if not found in table or fills the buffer with characters
+// from the beginning of the memory section + offset
+intptr_t
+CoreUtils::read_core_memory(intptr_t offset, intptr_t vaddr, intptr_t length, char *buf, FILE * fp)
+{
+  intptr_t index = find_vaddr(vaddr, arrayMem.length(), 0);
+
+  if (inTable == false)
+    return -1;
+  else {
+    intptr_t offset2 = arrayMem[index].offset;
+
+    if (fseek(fp, offset2 + offset, SEEK_SET) != -1) {
+      for (int j = 0; j < length; j++) {
+        *buf++ = (char) getc(fp);
+      }
+      buf -= length;
+    }
+    return 1;
+  }
+}
+
+
+// returns -1 on failure otherwise fills the buffer and
+// returns the number of bytes read
+intptr_t
+CoreUtils::read_from_core(intptr_t vaddr, intptr_t bytes, char *buf)
+{
+  intptr_t index = find_vaddr(vaddr, arrayMem.length(), 0);
+  intptr_t vadd = arrayMem[index - 1].vaddr;
+  intptr_t offset = arrayMem[index - 1].offset;
+  intptr_t size = arrayMem[index - 1].fsize;
+  intptr_t offset2 = abs(vaddr - vadd);
+
+  if (bytes > (size - offset2))
+    return -1;
+  else {
+    if (fseek(fp, offset2 + offset, SEEK_SET) != -1) {
+      char *frameoff;
+      if ((frameoff = (char *)ats_malloc(sizeof(char) * bytes))) {
+        if (fread(frameoff, bytes, 1, fp) == 1) {
+          memcpy(buf, frameoff, bytes);
+          /*for(int j =0; j < bytes; j++) {
+           *buf++ = getc(fp);
+           }
+           buf -= bytes;*/
+          ats_free(frameoff);
+          return bytes;
+        }
+        ats_free(frameoff);
+      }
+    } else
+      return -1;
+  }
+
+  return -1;
+}
+
+
+/* Linux Specific functions */
+
+#if defined(linux)
+// copies stack info for the thread's base frame to the given
+// core_stack_state pointer
+void
+CoreUtils::get_base_frame(intptr_t framep, core_stack_state *coress)
+{
+  // finds vaddress less than framep
+  intptr_t index = find_vaddr(framep, arrayMem.length(), 0);
+  intptr_t vadd = arrayMem[index - 1].vaddr;
+  intptr_t off = arrayMem[index - 1].offset;
+  intptr_t off2 = abs(vadd - framep);
+  intptr_t size = arrayMem[index - 1].fsize;
+  intptr_t i = 0;
+
+  memset(coress, 0, sizeof(*coress));
+  D(printf("stkbase=%p\n", (void*)(vadd + size)));
+  // seek to the framep offset
+  if (fseek(fp, off + off2, SEEK_SET) != -1) {
+    void **frameoff;
+    if ((frameoff = (void **)ats_malloc(sizeof(long)))) {
+      if (fread(frameoff, 4, 1, fp) == 1) {
+        coress->framep = (intptr_t) *frameoff;
+        if (fread(frameoff, 4, 1, fp) == 1) {
+          coress->pc = (intptr_t) *frameoff;
+        }
+        // read register arguments
+        for (i = 0; i < NO_OF_ARGS; i++) {
+          if (fread(frameoff, 4, 1, fp) == 1) {
+            coress->arg[i] = (intptr_t) *frameoff;
+          }
+        }
+      }
+      ats_free(frameoff);
+    }
+  } else {
+    printf("Failed to seek to top of the stack\n");
+  }
+  //coress->stkbase = vadd+size;
+}
+
+// returns 0 if current frame is already at the top of the stack
+// or returns 1 and moves up the stack once
+int
+CoreUtils::get_next_frame(core_stack_state * coress)
+{
+  intptr_t i = 0;
+  intptr_t framep = coress->framep;
+
+  intptr_t index = find_vaddr(framep, arrayMem.length(), 0);
+
+  // finds vaddress less than framep
+  intptr_t vadd = arrayMem[index - 1].vaddr;
+  intptr_t off = arrayMem[index - 1].offset;
+  intptr_t off2 = abs(vadd - framep);
+
+  // seek to the framep offset
+  if (fseek(fp, off + off2, SEEK_SET) != -1) {
+    void **frameoff;
+    if ((frameoff = (void **)ats_malloc(sizeof(long)))) {
+      if (fread(frameoff, 4, 1, fp) == 1) {
+        coress->framep = (intptr_t) *frameoff;
+        if (*frameoff == NULL) {
+          ats_free(frameoff);
+          return 0;
+        }
+        if (fread(frameoff, 4, 1, fp) == 1) {
+          coress->pc = (intptr_t) *frameoff;
+        }
+        for (i = 0; i < NO_OF_ARGS; i++) {
+          if (fread(frameoff, 4, 1, fp) == 1) {
+            coress->arg[i] = (intptr_t) *frameoff;
+          }
+        }
+      }
+      ats_free(frameoff);
+    }
+    return 1;
+  }
+
+  return 0;
+}
+
+// prints the http header
+void
+CoreUtils::find_stuff(StuffTest_f f)
+{
+  intptr_t framep = framepointer;
+  intptr_t pc = program_counter;
+  core_stack_state coress;
+  intptr_t i;
+  void *test_val;
+  int framecount = 0;
+
+  // Unwinding the stack
+  D(printf("\nStack Trace:\n"));
+  D(printf("stack frame#%d framep=%p pc=%p\n", framecount, (void*)framep, (void*)pc));
+  framecount++;
+  get_base_frame(framep, &coress);
+  f2 = framep;
+  do {
+    f1 = f2;
+    f2 = coress.framep;
+    D(printf
+      ("stack frame#%d framep=%p pc=%p f1-f2=%p coress=%p %p %p %p %p\n", framecount, (void*)coress.framep, (void*)coress.pc,
+       (void*)(f2 - f1), (void*)coress.arg[0], (void*)coress.arg[1], (void*)coress.arg[2], (void*)coress.arg[3], (void*)coress.arg[4]));
+
+    for (i = 0; i < NO_OF_ARGS; i++) {
+      test_val = (void *) coress.arg[i];
+      f(test_val);
+    }
+    framecount++;
+  } while (get_next_frame(&coress) != 0);
+}
+#endif  // linux check
+
+
+// test whether a given register is an HttpSM
+//   if it is, call process_HttpSM on it
+void
+CoreUtils::test_HdrHeap(void *arg)
+{
+  HdrHeap *hheap_test = (HdrHeap *) arg;
+  uint32_t *magic_ptr = &(hheap_test->m_magic);
+  uint32_t magic = 0;
+
+  if (read_from_core((intptr_t) magic_ptr, sizeof(uint32_t), (char *) &magic) != 0) {
+    if (magic == HDR_BUF_MAGIC_ALIVE ||
+        magic == HDR_BUF_MAGIC_DEAD || magic == HDR_BUF_MAGIC_CORRUPT || magic == HDR_BUF_MAGIC_MARSHALED) {
+      // This is not 64-bit correct ... /leif
+      printf("Found Hdr Heap @ 0x%p\n", arg);
+    }
+  }
+}
+
+// test whether a given register is an HttpSM
+//   if it is, call process_HttpSM on it
+void
+CoreUtils::test_HttpSM_from_tunnel(void *arg)
+{
+  char *tmp = (char *) arg;
+  intptr_t offset = (intptr_t) &(((HttpTunnel *) NULL)->sm);
+  HttpSM **hsm_ptr = (HttpSM **) (tmp + offset);
+  HttpSM *hsm_test;
+
+  if (read_from_core((intptr_t) hsm_ptr, sizeof(HttpSM *), (char *) &hsm_test) == 0)
+    return;
+
+  unsigned int *magic_ptr = &(hsm_test->magic);
+  unsigned int magic = 0;
+
+  if (read_from_core((intptr_t) magic_ptr, sizeof(int), (char *) &magic) != 0) {
+    if (magic == HTTP_SM_MAGIC_ALIVE || magic == HTTP_SM_MAGIC_DEAD) {
+      process_HttpSM(hsm_test);
+    }
+  }
+}
+
+// test whether a given register is an HttpSM
+//   if it is, call process_HttpSM on it
+void
+CoreUtils::test_HttpSM(void *arg)
+{
+  HttpSM *hsm_test = (HttpSM *) arg;
+  unsigned int *magic_ptr = &(hsm_test->magic);
+  unsigned int magic = 0;
+
+  if (read_from_core((intptr_t) magic_ptr, sizeof(int), (char *) &magic) != 0) {
+    if (magic == HTTP_SM_MAGIC_ALIVE || magic == HTTP_SM_MAGIC_DEAD) {
+      printf("test_HttpSM:******MATCH*****\n");
+      process_HttpSM(hsm_test);
+    }
+  }
+}
+
+void
+CoreUtils::process_HttpSM(HttpSM * core_ptr)
+{
+  // extracting the HttpSM from the core file
+  if (last_seen_http_sm != core_ptr) {
+    HttpSM *http_sm = (HttpSM *)ats_malloc(sizeof(HttpSM));
+
+    if (read_from_core((intptr_t) core_ptr, sizeof(HttpSM), (char *) http_sm) < 0) {
+      // This is not 64-bit correct ... /leif
+      printf("ERROR: Failed to read httpSM @ 0x%p from core\n", core_ptr);
+      ats_free(http_sm);
+      return;
+    }
+
+    if (http_sm->magic == HTTP_SM_MAGIC_ALIVE) {
+      last_seen_http_sm = core_ptr;
+
+      if (is_debug_tag_set("magic")) {
+#if defined(linux)
+        printf("\n*****match-ALIVE*****\n");
+#endif
+      }
+      // I don't think this is 64-bit correct. /leif
+      printf("---- Found HttpSM --- id %" PRId64 "  ------ @ 0x%p -----\n\n", http_sm->sm_id, http_sm);
+
+      print_http_hdr(&http_sm->t_state.hdr_info.client_request, "Client Request");
+      print_http_hdr(&http_sm->t_state.hdr_info.server_request, "Server Request");
+      print_http_hdr(&http_sm->t_state.hdr_info.server_response, "Server Response");
+      print_http_hdr(&http_sm->t_state.hdr_info.client_response, "Client Response");
+
+      dump_history(http_sm);
+
+      printf("------------------------------------------------\n\n\n");
+    } else if (http_sm->magic == HTTP_SM_MAGIC_DEAD) {
+      if (is_debug_tag_set("magic")) {
+#if defined(linux)
+        printf("\n*****match-DEAD*****\n");
+#endif
+      }
+    } else {
+      if (is_debug_tag_set("magic")) {
+        // Nothing here? /leif
+        ;
+      }
+    }
+
+    ats_free(http_sm);
+  } else
+    printf("process_HttpSM : last_seen_http_sm == core_ptr\n");
+}
+
+
+void
+CoreUtils::print_http_hdr(HTTPHdr * h, const char *name)
+{
+  HTTPHdr new_handle;
+
+  if (h->m_heap && h->m_http) {
+    int r = load_http_hdr(h, &new_handle);
+
+    if (r > 0) {
+      printf("----------- %s  ------------\n", name);
+      new_handle.m_mime = new_handle.m_http->m_fields_impl;
+      new_handle.print(NULL, 0, NULL, NULL);
+      printf("-----------------------------\n\n");
+    }
+  }
+}
+
+int
+CoreUtils::load_http_hdr(HTTPHdr * core_hdr, HTTPHdr * live_hdr)
+{
+  // Load HdrHeap chain
+  HTTPHdr *http_hdr = core_hdr;
+  HdrHeap *heap = (HdrHeap *) core_hdr->m_heap;
+  HdrHeap *heap_ptr = (HdrHeap *) http_hdr->m_heap;
+  char *buf = (char *)ats_malloc(sizeof(char) * sizeof(HdrHeap));
+  intptr_t ptr_heaps = 0;
+  intptr_t ptr_heap_size = 0;
+  intptr_t ptr_xl_size = 2;
+  intptr_t str_size = 0;
+  intptr_t str_heaps = 0;
+  MarshalXlate default_MarshalXlate = { 0, 0, 0 };
+  DynArray<struct MarshalXlate>ptr_xlation(&default_MarshalXlate, 2);
+  //MarshalXlate static_table[2];
+  //MarshalXlate* ptr_xlation = static_table;
+  intptr_t used;
+  intptr_t i;
+  intptr_t copy_size;
+
+  // extracting the header heap from the core file
+  do {
+    if (read_from_core((intptr_t) heap, sizeof(HdrHeap), buf) == -1) {
+      printf("Cannot read from core\n");
+      _exit(0);
+    }
+    heap = (HdrHeap *) buf;
+    copy_size = (int) (heap->m_free_start - heap->m_data_start);
+    ptr_heap_size += copy_size;
+    heap = heap->m_next;
+  } while (heap && ((intptr_t) heap != 0x1));
+
+  swizzle_heap = (HdrHeap *)ats_malloc(sizeof(HdrHeap));
+  live_hdr->m_heap = swizzle_heap;
+  ptr_data = (char *)ats_malloc(sizeof(char) * ptr_heap_size);
+  //heap = (HdrHeap*)http_hdr->m_heap;
+
+  //  Build Hdr Heap Translation Table
+  do {
+    if (read_from_core((intptr_t) heap_ptr, sizeof(HdrHeap), buf) == -1) {
+      printf("Cannot read from core\n");
+      _exit(0);
+    }
+    heap_ptr = (HdrHeap *) buf;
+    copy_size = (int) (heap_ptr->m_free_start - heap_ptr->m_data_start);
+
+    if (read_from_core((intptr_t) heap_ptr->m_data_start, copy_size, ptr_data) == -1) {
+      printf("Cannot read from core\n");
+      _exit(0);
+    }
+    // Expand ptr xlation table if necessary
+    if (ptr_heaps >= ptr_xl_size) {
+      ptr_xlation(ptr_heaps);
+    }
+
+    char *data, *free, *off;
+    data = heap_ptr->m_data_start;
+    free = heap_ptr->m_free_start;
+    off = (char *) (heap_ptr->m_data_start - ptr_data);
+
+    ptr_xlation[ptr_heaps].start = data;
+    ptr_xlation[ptr_heaps].end = free;
+    ptr_xlation[ptr_heaps].offset = off;
+    ptr_data += copy_size;
+    ptr_heaps++;
+    heap_ptr = heap_ptr->m_next;
+  } while (heap_ptr && ((intptr_t) heap_ptr != 0x1));
+
+  heap = (HdrHeap *) http_hdr->m_heap;
+  if (read_from_core((intptr_t) heap, sizeof(HdrHeap), buf) == -1) {
+    printf("Cannot read from core\n");
+    _exit(0);
+  }
+  heap = (HdrHeap *) buf;
+  // filling in the live_hdr
+  swizzle_heap->m_free_start = NULL;
+  swizzle_heap->m_data_start = (char *) ptr_data - ptr_heap_size;       // offset
+  swizzle_heap->m_magic = HDR_BUF_MAGIC_ALIVE;
+  swizzle_heap->m_writeable = false;
+  swizzle_heap->m_size = ptr_heap_size;
+  swizzle_heap->m_next = NULL;
+  swizzle_heap->m_free_size = 0;
+  swizzle_heap->m_read_write_heap.m_ptr = NULL;
+
+  // We'have one read-only string heap after marshalling
+  swizzle_heap->m_ronly_heap[0].m_heap_start = (char *)(intptr_t)swizzle_heap->m_size;   // offset
+  swizzle_heap->m_ronly_heap[0].m_ref_count_ptr.m_ptr = NULL;
+
+  for (int i = 1; i < HDR_BUF_RONLY_HEAPS; i++)
+    swizzle_heap->m_ronly_heap[i].m_heap_start = NULL;
+
+  // Next order of business is to copy over string heaps
+  //   As we are copying over the string heaps, build
+  //   translation table for string marshaling in the heap
+  //   objects
+  MarshalXlate str_xlation[HDR_BUF_RONLY_HEAPS + 1];
+
+  // Local String Heaps, building translation table
+  if (heap->m_read_write_heap) {
+    HdrStrHeap *hdr = (HdrStrHeap *) heap->m_read_write_heap.m_ptr;
+    char *copy_start = ((char *) heap->m_read_write_heap.m_ptr) + sizeof(HdrStrHeap);
+    char *str_hdr = (char *)ats_malloc(sizeof(char) * sizeof(HdrStrHeap));
+    if (read_from_core((intptr_t) hdr, sizeof(HdrStrHeap), str_hdr) == -1) {
+      printf("Cannot read from core\n");
+      _exit(0);
+    }
+
+    char *free_start = (char *) (((HdrStrHeap *) str_hdr)->m_free_start);
+    int nto_copy = abs((char *) copy_start - free_start);
+    ats_free(str_hdr);
+#if defined(__GNUC__)
+    char rw_heap[sizeof(char) * nto_copy];
+#else
+    char *rw_heap = (char *)ats_malloc(sizeof(char) * nto_copy);
+#endif
+    if (read_from_core((intptr_t) copy_start, nto_copy, rw_heap) == -1) {
+      printf("Cannot read from core\n");
+      _exit(0);
+    }
+    // FIX ME - possible offset overflow issues?
+    str_xlation[str_heaps].start = copy_start;
+    str_xlation[str_heaps].end = copy_start + nto_copy;
+    str_xlation[str_heaps].offset = (char *) (copy_start - rw_heap);
+
+    str_size += nto_copy;
+    str_heaps++;
+#if !defined(__GNUC__)
+    ats_free(rw_heap);
+#endif
+  }
+
+  for (i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+    if (heap->m_ronly_heap[i].m_heap_start != NULL) {
+#if defined(__GNUC__)
+      char ro_heap[sizeof(char) * heap->m_ronly_heap[i].m_heap_len];
+#else
+      char * ro_heap = (char *)ats_malloc(sizeof(char) * heap->m_ronly_heap[i].m_heap_len);
+#endif
+      if (read_from_core((intptr_t) heap->m_ronly_heap[i].m_heap_start, heap->m_ronly_heap[i].m_heap_len, ro_heap) == -1) {
+        printf("Cannot read from core\n");
+        _exit(0);
+      }
+      // Add translation table entry for string heaps
+      str_xlation[str_heaps].start = heap->m_ronly_heap[i].m_heap_start;
+      str_xlation[str_heaps].end = heap->m_ronly_heap[i].m_heap_start + heap->m_ronly_heap[i].m_heap_len;
+      str_xlation[str_heaps].offset = (char *) (heap->m_ronly_heap[i].m_heap_start - ro_heap);
+
+      ink_assert(str_xlation[str_heaps].start <= str_xlation[str_heaps].end);
+
+      str_heaps++;
+      str_size += heap->m_ronly_heap[i].m_heap_len;
+#if !defined(__GNUC__)
+      ats_free(ro_heap);
+#endif
+    }
+  }
+
+  // Patch the str heap len
+  swizzle_heap->m_ronly_heap[0].m_heap_len = str_size;
+
+  char *obj_data = swizzle_heap->m_data_start;
+  char *mheap_end = swizzle_heap->m_data_start + swizzle_heap->m_size;
+
+  while (obj_data < mheap_end) {
+    HdrHeapObjImpl *obj = (HdrHeapObjImpl *) obj_data;
+    ink_assert(obj_is_aligned(obj));
+
+    switch (obj->m_type) {
+    case HDR_HEAP_OBJ_URL:
+      if (((URLImpl *) obj)->marshal(str_xlation, str_heaps) < 0) {
+        goto Failed;
+      }
+      break;
+    case HDR_HEAP_OBJ_HTTP_HEADER:
+      if (((HTTPHdrImpl *) obj)->marshal(ptr_xlation, ptr_heaps, str_xlation, str_heaps) < 0) {
+        goto Failed;
+      }
+      live_hdr->m_http = (HTTPHdrImpl *) obj;
+      break;
+    case HDR_HEAP_OBJ_FIELD_BLOCK:
+      if (((MIMEFieldBlockImpl *) obj)->marshal(ptr_xlation, ptr_heaps, str_xlation, str_heaps) < 0) {
+        goto Failed;
+      }
+      break;
+    case HDR_HEAP_OBJ_MIME_HEADER:
+      if (((MIMEHdrImpl *) obj)->marshal(ptr_xlation, ptr_heaps, str_xlation, str_heaps)) {
+        goto Failed;
+      }
+      break;
+    case HDR_HEAP_OBJ_EMPTY:
+      break;
+    case HDR_HEAP_OBJ_RAW:
+      // Check to make sure we aren't stuck
+      //   in an infinite loop
+      if (obj->m_length <= 0) {
+        ink_assert(0);
+        goto Failed;
+      }
+      // Nothing to do
+      break;
+    default:
+      ink_release_assert(0);
+    }
+    obj_data = obj_data + obj->m_length;
+  }
+
+  // Add up the total bytes used
+  used = ptr_heap_size + str_size + HDR_HEAP_HDR_SIZE;
+  used = ROUND(used, HDR_PTR_SIZE);
+
+  return used;
+
+Failed:
+  swizzle_heap->m_magic = HDR_BUF_MAGIC_CORRUPT;
+  return -1;
+
+}
+
+void
+CoreUtils::dump_history(HttpSM * hsm)
+{
+  printf("-------- Begin History -------------\n");
+
+  // Loop through the history and dump it
+  for (int i = 0; i < hsm->history_pos; i++) {
+    int r = (int) hsm->history[i].reentrancy;
+    int e = (int) hsm->history[i].event;
+    char *fileline = load_string(hsm->history[i].fileline);
+
+    fileline = (fileline != NULL) ? fileline : ats_strdup("UNKNOWN");
+
+    printf("%d   %d   %s", e, r, fileline);
+
+    char buffer[32];
+    const char *msg = event_int_to_string(e, sizeof(buffer), buffer);
+    printf("   event string: \"%s\"\n", msg);
+
+    ats_free(fileline);
+  }
+
+  printf("-------- End History -----------\n\n");
+}
+
+intptr_t
+CoreUtils::read_heap_header(intptr_t vaddr, intptr_t bytes, HdrHeap h)
+{
+  intptr_t index = find_vaddr(vaddr, arrayMem.length(), 0);
+  intptr_t vadd = arrayMem[index - 1].vaddr;
+  intptr_t offset = arrayMem[index - 1].offset;
+  intptr_t size = arrayMem[index - 1].fsize;
+  intptr_t offset2 = abs(vaddr - vadd);
+
+  if (bytes > (size - offset2))
+    return -1;
+  else {
+    if (fseek(fp, offset2 + offset, SEEK_SET) != -1) {
+      if (fread(&h, sizeof(HdrHeap), 1, fp) > 0)
+        return bytes;
+      else
+        return -1;
+    }
+  }
+  return -1;
+}
+
+void
+CoreUtils::process_EThread(EThread * eth_test)
+{
+  char *buf = (char *)ats_malloc(sizeof(char) * sizeof(EThread));
+
+  if (read_from_core((intptr_t) eth_test, sizeof(EThread), buf) != -1) {
+    EThread *loaded_eth = (EThread *) buf;
+
+    // This is not 64-bit correct. /leif
+    printf("----------- EThread @ 0x%p ----------\n", eth_test);
+#if !defined(kfreebsd) && (defined(freebsd) || defined(darwin) || defined(openbsd))
+    printf("   thread_id: %p\n", loaded_eth->tid);
+#else
+    printf("   thread_id: %i\n", (int) loaded_eth->tid);
+#endif
+    //    printf("   NetHandler: 0x%x\n\n", (int) loaded_eth->netHandler);
+  }
+
+  ats_free(buf);
+}
+
+static void
+print_netstate(NetState * n)
+{
+  // These might not be 64-bit correct. /leif
+  printf("      enabled: %d\n", n->enabled);
+  printf("      op: %d  _cont: 0x%p\n", n->vio.op, n->vio._cont);
+  printf("      nbytes: %d  done: %d\n", (int)n->vio.nbytes, (int)n->vio.ndone);
+  printf("      vc_server: 0x%p   mutex: 0x%p\n\n", n->vio.vc_server, n->vio.mutex.m_ptr);
+}
+
+void
+CoreUtils::process_NetVC(UnixNetVConnection * nvc_test)
+{
+  char *buf = (char *)ats_malloc(sizeof(char) * sizeof(UnixNetVConnection));
+
+  if (read_from_core((intptr_t) nvc_test, sizeof(UnixNetVConnection), buf) != -1) {
+    UnixNetVConnection *loaded_nvc = (UnixNetVConnection *) buf;
+    
+    // Probably not 64-bit safe. /leif
+    char addrbuf[INET6_ADDRSTRLEN];
+    printf("----------- UnixNetVConnection @ 0x%p ----------\n", nvc_test);
+    printf("     ip: %s    port: %d\n",
+        ats_ip_ntop(&loaded_nvc->server_addr.sa, addrbuf, sizeof(addrbuf)), 
+        ats_ip_port_host_order(&loaded_nvc->server_addr));
+    printf("     closed: %d\n\n", loaded_nvc->closed);
+    printf("     read state: \n");
+    print_netstate(&loaded_nvc->read);
+    printf("     write state: \n");
+    print_netstate(&loaded_nvc->write);
+  }
+
+  ats_free(buf);
+}
+
+
+char *
+CoreUtils::load_string(const char *addr)
+{
+  char buf[2048];
+  int index = 0;
+
+  if (addr == NULL) {
+    return ats_strdup("NONE");
+  }
+
+  while (index < 2048) {
+    if (read_from_core((intptr_t) (addr + index), 1, buf + index) < 0) {
+      return NULL;
+    }
+
+    if (buf[index] == '\0') {
+      return ats_strdup(buf);
+    }
+    index++;
+  }
+
+  return NULL;
+}
+
+// parses core file
+#if defined(linux)
+void
+process_core(char *fname)
+{
+  Elf32_Ehdr ehdr;
+  Elf32_Phdr phdr;
+  int phoff, phnum, phentsize;
+  int framep = 0, pc = 0;
+
+  /* Open the input file */
+  if (!(fp = fopen(fname, "r"))) {
+    printf("cannot open file\n");
+    _exit(1);
+  }
+
+  /* Obtain the .shstrtab data buffer */
+  if (fread(&ehdr, sizeof ehdr, 1, fp) != 1) {
+    printf("Unable to read ehdr\n");
+    _exit(1);
+  }
+  // program header offset
+  phoff = ehdr.e_phoff;
+  // number of program headers
+  phnum = ehdr.e_phnum;
+  // size of each program header
+  phentsize = ehdr.e_phentsize;
+
+  for (int i = 0; i < phnum; i++) {
+    if (fseek(fp, phoff + i * phentsize, SEEK_SET) == -1) {
+      fprintf(stderr, "Unable to seek to Phdr %d\n", i);
+      _exit(1);
+    }
+
+    if (fread(&phdr, sizeof phdr, 1, fp) != 1) {
+      fprintf(stderr, "Unable to read Phdr %d\n", i);
+      _exit(1);
+    }
+    int poffset, psize;
+    int pvaddr;
+    /* This member gives the virtual address at which the first byte of the
+       segment resides in memory. */
+    pvaddr = phdr.p_vaddr;
+    /* This member gives the offset from the beginning of the file at which
+       the first byte of the segment resides. */
+    poffset = phdr.p_offset;
+    /* This member gives the number of bytes in the file image of the
+       segment; it may be zero. */
+    psize = phdr.p_filesz;
+
+    if (pvaddr != 0) {
+      CoreUtils::insert_table(pvaddr, poffset, psize);
+    }
+
+    if (is_debug_tag_set("phdr")) {
+      printf("\n******* PHDR %d *******\n", i);
+      printf("p_type = %u  ", phdr.p_type);
+      printf("p_offset = %u  ", phdr.p_offset);
+      printf("p_vaddr = %#x  ", pvaddr);
+
+      printf("p_paddr = %#x\n", phdr.p_paddr);
+      printf("p_filesz = %u  ", phdr.p_filesz);
+      printf("p_memsz = %u  ", phdr.p_memsz);
+      printf("p_flags = %u  ", phdr.p_flags);
+      printf("p_align = %u\n", phdr.p_align);
+    }
+
+    if (phdr.p_type == PT_NOTE) {
+      printf("NOTE\n");
+      if (fseek(fp, phdr.p_offset, SEEK_SET) != -1) {
+        Elf32_Nhdr *nhdr, *thdr;
+        if ((nhdr = (Elf32_Nhdr *)ats_malloc(sizeof(Elf32_Nhdr) * phdr.p_filesz))) {
+          if (fread(nhdr, phdr.p_filesz, 1, fp) == 1) {
+            int size = phdr.p_filesz;
+            int sum = 0;
+            thdr = nhdr;
+            while (size) {
+              int len;
+
+              len = sizeof *thdr + ((thdr->n_namesz + 3) & ~3) + ((thdr->n_descsz + 3) & ~3);
+              // making sure the offset is byte aligned
+              char *offset = (char *) (thdr + 1) + ((thdr->n_namesz + 3) & ~3);
+
+              if (len<0 || len> size) {
+                _exit(1);
+              }
+              printf("size=%d, len=%d\n", size, len);
+
+              prstatus_t pstat;
+              prstatus_t *ps;
+              prpsinfo_t infostat, *ist;
+              elf_gregset_t rinfo;
+              unsigned int j;
+
+              switch (thdr->n_type) {
+
+              case NT_PRSTATUS:
+                ps = (prstatus_t *) offset;
+                memcpy(&pstat, ps, sizeof(prstatus_t));
+                printf("\n*** printing registers****\n");
+                for (j = 0; j < ELF_NGREG; j++) {
+                  rinfo[j] = pstat.pr_reg[j];
+                  // This is probably not 64-bit correct. /leif
+                  printf("%#x ", (unsigned int) rinfo[j]);
+                }
+                printf("\n");
+
+                //if (is_debug_tag_set("note")) {
+                printf("\n**** NT_PRSTATUS ****\n");
+
+                printf("Process id = %d\n", pstat.pr_pid);
+                printf("Parent Process id = %d\n", pstat.pr_ppid);
+
+                printf("Signal that caused this core dump is signal  = %d\n", pstat.pr_cursig);
+                // convert it using strsignal
+                //char *msg=strsignal(pstat.pr_cursig);
+
+                // Probably not 64-bit correct. /leif
+                printf("stack pointer = %#x\n", (unsigned int) pstat.pr_reg[SP_REGNUM]);        //UESP
+                framep = pstat.pr_reg[FP_REGNUM];
+                pc = pstat.pr_reg[PC_REGNUM];
+                // Probably not 64-bit correct. /leif
+                printf("frame pointer = %#x\n", (unsigned int) pstat.pr_reg[FP_REGNUM]);        //EBP
+                printf("program counter if no save = %#x\n", (unsigned int) pstat.pr_reg[PC_REGNUM]);
+                //}
+                break;
+
+              case NT_PRPSINFO:
+                ist = (prpsinfo_t *) offset;
+                memcpy(&infostat, ist, sizeof(prpsinfo_t));
+
+                if (is_debug_tag_set("note")) {
+                  printf("\n**** NT_PRPSINFO of active process****\n");
+                  printf("process state = %c\n", infostat.pr_state);
+                  printf("Name of the executable = %s\n", infostat.pr_fname);
+                  printf("Arg List = %s\n", infostat.pr_psargs);
+
+                  printf("process id = %d\n", infostat.pr_pid);
+                }
+                break;
+              }
+              thdr = (Elf32_Nhdr *) ((char *) thdr + len);
+              sum += len;
+              size -= len;
+            }
+          }
+          ats_free(nhdr);
+        }
+      }
+    }
+  }
+  framepointer = framep;
+  program_counter = pc;
+
+  // Write your actual tests here
+  CoreUtils::find_stuff(&CoreUtils::test_HdrHeap);
+  CoreUtils::find_stuff(&CoreUtils::test_HttpSM);
+
+  fclose(fp);
+}
+#endif
+
+#if !defined(linux)
+void
+process_core(char *fname)
+{
+  // do not make it fatal!!!!
+  Warning("Only supported on Sparc Solaris and Linux");
+}
+#endif
diff --git a/proxy/CoreUtils.h b/proxy/CoreUtils.h
new file mode 100644
index 00000000..fe16f687
--- /dev/null
+++ b/proxy/CoreUtils.h
@@ -0,0 +1,234 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   CoreUtils.h
+
+   Description:  Automated processing of core files on Sparc & Linux
+ ****************************************************************************/
+
+#ifndef _CORE_UTILS_H_
+#define _CORE_UTILS_H_
+
+#if defined(linux)
+#include <stdio.h>
+#include <sys/procfs.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+#include <elf.h>
+#include "DynArray.h"
+
+#define SP_REGNUM 15            /* Contains address of top of stack USP */
+#define PC_REGNUM 12            /* Contains program counter EIP */
+#define FP_REGNUM 5             /* Virtual frame pointer EBP */
+#define NO_OF_ARGS 10           /* The argument depth upto which we would be looking into
+                                   the stack */
+
+// contains local and in registers, frame pointer, and stack base
+struct core_stack_state
+{
+  intptr_t framep;                   //int stkbase;
+  intptr_t pc;
+  intptr_t arg[NO_OF_ARGS];
+};
+#endif  // linux check
+
+#if defined(darwin) || defined(freebsd) || defined(solaris) || defined(openbsd) // FIXME: solaris x86
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+
+#define NO_OF_ARGS 10           /* The argument depth upto which we would be looking into
+                                   the stack */
+
+// contains local and in registers, frame pointer, and stack base
+struct core_stack_state
+{
+  intptr_t framep;                   //int stkbase;
+  intptr_t pc;
+  intptr_t arg[NO_OF_ARGS];
+};
+#endif  /* darwin || freebsd || solaris */
+
+// to be sorted by virtual address
+struct memTable
+{
+  intptr_t vaddr;
+  intptr_t offset;
+  intptr_t fsize;
+};
+
+typedef void (*StuffTest_f) (void *);
+
+class HttpSM;
+class HTTPHdr;
+class HdrHeap;
+
+class EThread;
+class UnixNetVConnection;
+
+class CoreUtils
+{
+public:
+
+  /**********************************************************************
+  * purpose: finds the index of the virtual address or finds what the
+  *          index should be if the virtual address is not there
+  * inputs: int vaddr, int upper, int lower
+  * outputs: returns the index of the vaddr or the index after where it
+  *          should be
+  * notes: upper and lower stands for the lowest and highest indices
+  *        the function should search between
+  **********************************************************************/
+  static intptr_t find_vaddr(intptr_t vaddr, intptr_t upper, intptr_t lower);
+
+  /**********************************************************************
+  * purpose: function used to build the virtual address table
+  * inputs: int vaddr1, int offset1, int fsize1
+  * outputs: none
+  **********************************************************************/
+  static void insert_table(intptr_t vaddr1, intptr_t offset1, intptr_t fsize1);
+
+  /**********************************************************************
+  * purpose: fills the given buffer with characters from the beginning
+  *          of the given memory section
+  * inputs: int vaddr, int length, char* buf, FILE *fp
+  * outputs: returns -1 on read error or 1 if successful
+  **********************************************************************/
+  static intptr_t read_core_memory(intptr_t vaddr, intptr_t length, char *buf, FILE * fp);
+
+  /**********************************************************************
+  * purpose: fills the given buffer with characters from the beginning
+  *          of the given memory section + given offset
+  * inputs: int offset, int vaddr, int length, char* buf, FILE *fp
+  * outputs: returns -1 on read error or 1 if successful
+  **********************************************************************/
+  static intptr_t read_core_memory(intptr_t offset, intptr_t vaddr, intptr_t length, char *buf, FILE * fp);
+
+  /**********************************************************************
+  * purpose: fills the buffer with num of given bytes from the
+  *          beginning of the memory section
+  * inputs: int vaddr, int bytes, char* buf
+  * outputs: returns -1 on read error or num of bytes read
+  **********************************************************************/
+  static intptr_t read_from_core(intptr_t vaddr, intptr_t bytes, char *buf);
+
+  /**********************************************************************
+  * purpose: beats the heck outta me
+  * inputs: int vaddr, int bytes, HdrHeap h
+  * outputs: returns -1 on read error or num of bytes read
+  **********************************************************************/
+  static intptr_t read_heap_header(intptr_t vaddr, intptr_t bytes, HdrHeap h);
+
+  /**********************************************************************
+  * purpose: returns the active lwp id
+  * inputs: none
+  * outputs: returns the active lwp id
+  **********************************************************************/
+
+  /**********************************************************************
+  * purpose: returns the base core_stack_state for the given thread id
+  * inputs: int threadId, core_stack_state* coress
+  * outputs: returns the base core_stack_state for the given thread id
+  **********************************************************************/
+#if defined(linux)
+  static void get_base_frame(intptr_t framep, core_stack_state * coress);
+#endif
+
+  /**********************************************************************
+  * purpose: returns the core_stack_state of the next frame up
+  * inputs: core_stack_state* coress
+  * outputs: returns 0 if current frame is already at the top of the stack
+  *          or returns 1 and moves up the stack once
+  **********************************************************************/
+  static int get_next_frame(core_stack_state * coress);
+
+  /**********************************************************************
+  * purpose: loop ups over local & in registers on the stack and calls
+  *            f on all of them
+  * inputs: none
+  * outputs: none
+  **********************************************************************/
+  static void find_stuff(StuffTest_f f);
+
+  /**********************************************************************
+  * purpose: tests whether a given register is an HttpSM
+  * inputs: reg_type t, int i, core_stack_state coress
+  * outputs: none
+  **********************************************************************/
+  static void test_HttpSM(void *);
+  static void test_HttpSM_from_tunnel(void *);
+
+  /**********************************************************************
+  * purpose: prints out info about a give HttpSM
+  * inputs: HttpSM* core_ptr (ptr to http_sm in core)
+  * outputs: none
+  **********************************************************************/
+  static void process_HttpSM(HttpSM * core_ptr);
+  static void process_EThread(EThread * eth_test);
+  static void process_NetVC(UnixNetVConnection * eth_test);
+
+  /**********************************************************************
+  * purpose: dumps the given state machine's history
+  * inputs: HttpSM* hsm
+  * outputs: none
+  **********************************************************************/
+  static void dump_history(HttpSM * hsm);
+
+  /**********************************************************************
+  * purpose: fills in the given HTTPHdr * live_hdr with live information
+  *          take from core_hdr the core file
+  * inputs: HTTPHdr* core_hdr, HTTPHdr* live_hdr
+  * outputs: -1 on failure or total bytes in the header heaps
+  **********************************************************************/
+  static int load_http_hdr(HTTPHdr * core_hdr, HTTPHdr * live_hdr);
+
+  /**********************************************************************
+  * purpose: loads the http hdr from handle h in the core file
+  * inputs: HTTPHdr* h, char* name
+  * outputs: none
+  **********************************************************************/
+  static void print_http_hdr(HTTPHdr * h, const char *name);
+
+  /**********************************************************************
+  * purpose: loads a null terminated string from the core file
+  * inputs: core file string address
+  * outputs: char* pointing to live string. call deallocs via ats_free()
+  ***********************************************************************/
+  static char *load_string(const char *addr);
+
+  static void test_HdrHeap(void *arg);
+};
+
+
+// parses the core file
+void process_core(char *fname);
+
+#endif /* _core_utils_h_ */
diff --git a/proxy/DebugStreamLevels.txt b/proxy/DebugStreamLevels.txt
new file mode 100644
index 00000000..0414eae2
--- /dev/null
+++ b/proxy/DebugStreamLevels.txt
@@ -0,0 +1,4 @@
+HTTP_STATE_MACHINE_GET
+HTTP_NET_PROCESSOR
+NET_CONNECTION_SERVER
+NET_CONNECTION_USER_AGENT
\ No newline at end of file
diff --git a/proxy/DynamicStats.h b/proxy/DynamicStats.h
new file mode 100644
index 00000000..056de9d4
--- /dev/null
+++ b/proxy/DynamicStats.h
@@ -0,0 +1,103 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+_HEADER
+  //
+  // Dynamic http stats
+  //
+  // this one's in the state machine currently
+  //
+    //
+    // Dynamic Cluster Stats
+    //
+_D(cluster_connections_open_stat)
+_D(cluster_connections_openned_stat)
+_D(cluster_con_total_time_stat)
+_D(cluster_ctrl_msgs_sent_stat)
+_D(cluster_slow_ctrl_msgs_sent_stat)    // fast ctrl messages do not require a mallo
+_D(cluster_ctrl_msgs_recvd_stat)
+_D(cluster_slow_ctrl_msgs_recvd_stat)
+_D(cluster_ctrl_msgs_send_time_stat)
+_D(cluster_ctrl_msgs_recv_time_stat)
+_D(cluster_read_bytes_stat)
+_D(cluster_write_bytes_stat)
+_D(cluster_op_delayed_for_lock_stat)    // a message to a machine was blocked by a locked connection
+_D(cluster_connections_locked_stat)     // a connection could not use its slot (locked)
+_D(cluster_connections_bumped_stat)     // a connection could not get a slot (scheduled too late)
+_D(cluster_nodes_stat)
+_D(cluster_net_backup_stat)
+_D(cluster_machines_allocated_stat)
+_D(cluster_machines_freed_stat)
+_D(cluster_configuration_changes_stat)
+_D(cluster_delayed_reads_stat)
+_D(cluster_byte_bank_used_stat)
+_D(cluster_alloc_data_news_stat)
+_D(cluster_write_bb_mallocs_stat)
+_D(cluster_partial_reads_stat)
+_D(cluster_partial_writes_stat)
+_D(cluster_cache_outstanding_stat)
+_D(cluster_remote_op_timeouts_stat)
+_D(cluster_remote_op_reply_timeouts_stat)
+_D(cluster_chan_inuse_stat)
+_D(cluster_open_delays_stat)
+_D(cluster_open_delay_time_stat)
+_D(cluster_cache_callbacks_stat)
+_D(cluster_cache_callback_time_stat)
+_D(cluster_cache_rmt_callbacks_stat)
+_D(cluster_cache_rmt_callback_time_stat)
+_D(cluster_cache_lkrmt_callbacks_stat)
+_D(cluster_cache_lkrmt_callback_time_stat)
+_D(cluster_thread_steal_expires_stat)
+_D(cluster_local_connections_closed_stat)
+_D(cluster_local_connection_time_stat)
+_D(cluster_remote_connections_closed_stat)
+_D(cluster_remote_connection_time_stat)
+_D(cluster_rdmsg_assemble_time_stat)
+_D(cluster_ping_time_stat)
+_D(cluster_setdata_no_clustervc_stat)
+_D(cluster_setdata_no_tunnel_stat)
+_D(cluster_setdata_no_cachevc_stat)
+_D(cluster_setdata_no_cluster_stat)
+_D(cluster_vc_write_stall_stat)
+_D(cluster_no_remote_space_stat)
+_D(cluster_level1_bank_stat)
+_D(cluster_multilevel_bank_stat)
+_D(cluster_vc_cache_insert_lock_misses_stat)
+_D(cluster_vc_cache_inserts_stat)
+_D(cluster_vc_cache_lookup_lock_misses_stat)
+_D(cluster_vc_cache_lookup_hits_stat)
+_D(cluster_vc_cache_lookup_misses_stat)
+_D(cluster_vc_cache_scans_stat)
+_D(cluster_vc_cache_scan_lock_misses_stat)
+_D(cluster_vc_cache_purges_stat)
+_D(cluster_write_lock_misses_stat)
+
+
+  //
+  // Dynamic Load Shedding Stats
+  //
+_D(cpu_metric_load_percent_stat)
+_D(cpu_metric_net_loops_per_second_stat)
+_D(cpu_metric_fds_ready_per_loop_stat)
+
+_FOOTER
diff --git a/proxy/EventName.cc b/proxy/EventName.cc
new file mode 100644
index 00000000..97bf38fc
--- /dev/null
+++ b/proxy/EventName.cc
@@ -0,0 +1,115 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include "ink_config.h"
+#include <stdio.h>
+#include <string.h>
+
+#include "P_EventSystem.h"
+// #include "I_Disk.h" unused
+#include "I_Cache.h"
+#include "I_Net.h"
+//#include "P_Cluster.h"
+#include "I_HostDB.h"
+#include "BaseManager.h"
+#include "P_MultiCache.h"
+
+/*-------------------------------------------------------------------------
+  event_int_to_string
+
+  This routine will translate an integer event number to a string
+  identifier based on a brute-force search of a switch tag.  If the event
+  cannot be located in the switch table, the routine will construct and
+  return a string of the integer identifier.
+  -------------------------------------------------------------------------*/
+
+const char *
+event_int_to_string(int event, int blen, char *buffer)
+{
+  switch (event) {
+    case -1: return "<no event>";
+    case VC_EVENT_READ_READY: return "VC_EVENT_READ_READY";
+    case VC_EVENT_WRITE_READY: return "VC_EVENT_WRITE_READY";
+    case VC_EVENT_READ_COMPLETE: return "VC_EVENT_READ_COMPLETE";
+    case VC_EVENT_WRITE_COMPLETE: return "VC_EVENT_WRITE_COMPLETE";
+    case VC_EVENT_EOS: return "VC_EVENT_EOS";
+    case VC_EVENT_INACTIVITY_TIMEOUT: return "VC_EVENT_INACTIVITY_TIMEOUT";
+    case VC_EVENT_ACTIVE_TIMEOUT: return "VC_EVENT_ACTIVE_TIMEOUT";
+
+    case NET_EVENT_OPEN: return "NET_EVENT_OPEN";
+    case NET_EVENT_OPEN_FAILED: return "NET_EVENT_OPEN_FAILED";
+    case NET_EVENT_ACCEPT: return "NET_EVENT_ACCEPT";
+    case NET_EVENT_ACCEPT_SUCCEED: return "NET_EVENT_ACCEPT_SUCCEED";
+    case NET_EVENT_ACCEPT_FAILED: return "NET_EVENT_ACCEPT_FAILED";
+
+
+#ifdef CLUSTER_CACHE
+    case CLUSTER_EVENT_CHANGE: return "CLUSTER_EVENT_CHANGE";
+    case CLUSTER_EVENT_CONFIGURATION: return "CLUSTER_EVENT_CONFIGURATION";
+    case CLUSTER_EVENT_OPEN: return "CLUSTER_EVENT_OPEN";
+    case CLUSTER_EVENT_OPEN_FAILED: return "CLUSTER_EVENT_OPEN_FAILED";
+    case CLUSTER_EVENT_STEAL_THREAD: return "CLUSTER_EVENT_STEAL_THREAD";
+#endif
+    case EVENT_HOST_DB_LOOKUP: return "EVENT_HOST_DB_LOOKUP";
+    case EVENT_HOST_DB_GET_RESPONSE: return "EVENT_HOST_DB_GET_RESPONSE";
+
+    case DNS_EVENT_EVENTS_START: return "DNS_EVENT_EVENTS_START";
+
+
+    case MULTI_CACHE_EVENT_SYNC: return "MULTI_CACHE_EVENT_SYNC";
+
+    case CACHE_EVENT_LOOKUP: return "CACHE_EVENT_LOOKUP";
+    case CACHE_EVENT_LOOKUP_FAILED: return "CACHE_EVENT_LOOKUP_FAILED";
+    case CACHE_EVENT_OPEN_READ: return "CACHE_EVENT_OPEN_READ";
+    case CACHE_EVENT_OPEN_READ_FAILED: return "CACHE_EVENT_OPEN_READ_FAILED";
+    case CACHE_EVENT_OPEN_WRITE: return "CACHE_EVENT_OPEN_WRITE";
+    case CACHE_EVENT_OPEN_WRITE_FAILED: return "CACHE_EVENT_OPEN_WRITE_FAILED";
+    case CACHE_EVENT_REMOVE: return "CACHE_EVENT_REMOVE";
+    case CACHE_EVENT_REMOVE_FAILED: return "CACHE_EVENT_REMOVE_FAILED";
+    case CACHE_EVENT_UPDATE: return "CACHE_EVENT_UPDATE";
+    case CACHE_EVENT_UPDATE_FAILED: return "CACHE_EVENT_UPDATE_FAILED";
+    case CACHE_EVENT_LINK: return "CACHE_EVENT_LINK";
+    case CACHE_EVENT_LINK_FAILED: return "CACHE_EVENT_LINK_FAILED";
+    case CACHE_EVENT_DEREF: return "CACHE_EVENT_DEREF";
+    case CACHE_EVENT_DEREF_FAILED: return "CACHE_EVENT_DEREF_FAILED";
+    case CACHE_EVENT_RESPONSE: return "CACHE_EVENT_RESPONSE";
+    case CACHE_EVENT_RESPONSE_MSG: return "CACHE_EVENT_RESPONSE_MSG";
+
+
+    case MGMT_EVENT_SHUTDOWN: return "MGMT_EVENT_SHUTDOWN";
+    case MGMT_EVENT_RESTART: return "MGMT_EVENT_RESTART";
+    case MGMT_EVENT_BOUNCE: return "MGMT_EVENT_BOUNCE";
+    case MGMT_EVENT_CONFIG_FILE_UPDATE: return "MGMT_EVENT_CONFIG_FILE_UPDATE";
+    case MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION: return "MGMT_EVENT_CONFIG_FILE_UPDATE_NO_INC_VERSION";
+    case MGMT_EVENT_CLEAR_STATS: return "MGMT_EVENT_CLEAR_STATS";
+
+  default:
+    if (buffer != NULL) {
+      snprintf(buffer, blen, "%d", event);
+      return buffer;
+    } else {
+      return "UNKNOWN_EVENT";
+    }
+  }
+}
diff --git a/proxy/EventName.h b/proxy/EventName.h
new file mode 100644
index 00000000..f7ef20b5
--- /dev/null
+++ b/proxy/EventName.h
@@ -0,0 +1,38 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   EventName.h
+
+   Description:  Stringifying Events
+ ****************************************************************************/
+
+#ifndef _EVENT_NAME_H_
+#define _EVENT_NAME_H_
+
+#include <unistd.h>
+
+const char *event_int_to_string(int event, int blen = 0, char *buffer = NULL);
+
+#endif /* _event_name_h_ */
diff --git a/proxy/FetchSM.cc b/proxy/FetchSM.cc
new file mode 100644
index 00000000..a0a40336
--- /dev/null
+++ b/proxy/FetchSM.cc
@@ -0,0 +1,645 @@
+/** @file
+
+  Implements callin functions for plugins
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "FetchSM.h"
+#include <stdio.h>
+#include "HTTP.h"
+#include "PluginVC.h"
+
+static const char *http_method[] = {
+  "NONE",
+  "GET",
+  "POST",
+  "CONNECT",
+  "DELETE",
+  "HEAD",
+  "PURGE",
+  "PUT",
+  "OPTIONS",
+  "TRACE",
+  "LAST",
+};
+
+#define DEBUG_TAG "FetchSM"
+#define FETCH_LOCK_RETRY_TIME HRTIME_MSECONDS(10)
+
+ClassAllocator < FetchSM > FetchSMAllocator("FetchSMAllocator");
+void
+FetchSM::cleanUp()
+{
+  Debug(DEBUG_TAG, "[%s] calling cleanup", __FUNCTION__);
+
+  if (resp_is_chunked > 0 && (fetch_flags & TS_FETCH_FLAGS_DECHUNK)) {
+    chunked_handler.clear();
+   }
+
+  free_MIOBuffer(req_buffer);
+  free_MIOBuffer(resp_buffer);
+  mutex.clear();
+  http_parser_clear(&http_parser);
+  client_response_hdr.destroy();
+  ats_free(client_response);
+  cont_mutex.clear();
+  http_vc->do_io_close();
+  FetchSMAllocator.free(this);
+}
+
+void
+FetchSM::httpConnect()
+{
+  PluginIdentity* pi = dynamic_cast<PluginIdentity*>(contp);
+  char const* tag = pi ? pi->getPluginTag() : "fetchSM";
+  int64_t id = pi ? pi->getPluginId() : 0;
+
+  Debug(DEBUG_TAG, "[%s] calling httpconnect write", __FUNCTION__);
+  http_vc = reinterpret_cast<PluginVC*>(TSHttpConnectWithPluginId(&_addr.sa, tag, id));
+
+  read_vio = http_vc->do_io_read(this, INT64_MAX, resp_buffer);
+  write_vio = http_vc->do_io_write(this, getReqLen() + req_content_length, req_reader);
+}
+
+char* FetchSM::resp_get(int *length) {
+  *length = client_bytes;
+  return client_response;
+}
+
+int
+FetchSM::InvokePlugin(int event, void *data)
+{
+  EThread *mythread = this_ethread();
+
+  MUTEX_TAKE_LOCK(contp->mutex,mythread);
+
+  int ret = contp->handleEvent(event,data);
+
+  MUTEX_UNTAKE_LOCK(contp->mutex,mythread);
+
+  return ret;
+}
+
+bool
+FetchSM::has_body()
+{
+  int status_code;
+  HTTPHdr *hdr;
+
+  if (!header_done)
+    return false;
+
+  //
+  // The following code comply with HTTP/1.1:
+  // http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.4
+  //
+
+  if (req_method == TS_FETCH_METHOD_HEAD)
+    return false;
+
+  hdr = &client_response_hdr;
+
+  status_code = hdr->status_get();
+  if (status_code < 200 || status_code == 204 || status_code == 304)
+    return false;
+
+  if (check_chunked())
+    return true;
+
+  resp_content_length = hdr->value_get_int64(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+  if (!resp_content_length)
+    return false;
+
+  return true;
+}
+
+bool
+FetchSM::check_body_done()
+{
+  if (!check_chunked()) {
+    if (resp_content_length == resp_recived_body_len + resp_reader->read_avail())
+      return true;
+
+    return false;
+  }
+
+  //
+  // TODO: check whether the chunked body is done
+  //
+  return true;
+}
+
+bool
+FetchSM::check_chunked()
+{
+  int ret;
+  StrList slist;
+  HTTPHdr *hdr = &client_response_hdr;
+
+  if (resp_is_chunked >= 0)
+    return resp_is_chunked;
+
+  ink_release_assert(header_done);
+
+  resp_is_chunked = 0;
+  ret = hdr->value_get_comma_list(MIME_FIELD_TRANSFER_ENCODING,
+                                  MIME_LEN_TRANSFER_ENCODING, &slist);
+  if (ret) {
+    for (Str *f = slist.head; f != NULL; f = f->next) {
+      if (f->len == 0)
+        continue;
+
+      size_t len = sizeof("chunked") - 1;
+      len = len > f->len ? f->len : len;
+      if (!strncasecmp(f->str, "chunked", len)) {
+        resp_is_chunked = 1;
+        if (fetch_flags & TS_FETCH_FLAGS_DECHUNK) {
+          ChunkedHandler *ch = &chunked_handler;
+          ch->init_by_action(resp_reader, ChunkedHandler::ACTION_DECHUNK);
+          ch->dechunked_reader = ch->dechunked_buffer->alloc_reader();
+          ch->state = ChunkedHandler::CHUNK_READ_SIZE;
+          resp_reader->dealloc();
+        }
+        return true;
+      }
+    }
+  }
+
+  return resp_is_chunked;
+}
+
+int
+FetchSM::dechunk_body()
+{
+  ink_assert(resp_is_chunked > 0);
+  //
+  // Return Value:
+  //  - 0: need to read more data.
+  //  - TS_FETCH_EVENT_EXT_BODY_READY.
+  //  - TS_FETCH_EVENT_EXT_BODY_DONE.
+  //
+  if (chunked_handler.process_chunked_content())
+    return TS_FETCH_EVENT_EXT_BODY_DONE;
+
+  if (chunked_handler.dechunked_reader->read_avail())
+    return TS_FETCH_EVENT_EXT_BODY_READY;
+
+  return 0;
+}
+
+void
+FetchSM::InvokePluginExt(int error_event)
+{
+  int event;
+  EThread *mythread = this_ethread();
+
+  //
+  // Increasing *recursion* to prevent
+  // FetchSM being deleted by callback.
+  //
+  recursion++;
+
+  if (fetch_flags & TS_FETCH_FLAGS_NEWLOCK) {
+    MUTEX_TAKE_LOCK(cont_mutex, mythread);
+  }
+
+  if (!contp)
+    goto out;
+
+  if (error_event) {
+    contp->handleEvent(error_event, this);
+    goto out;
+  }
+
+  if (!has_sent_header) {
+    contp->handleEvent(TS_FETCH_EVENT_EXT_HEAD_DONE, this);
+    has_sent_header = true;
+  }
+
+  if (!has_body()) {
+    contp->handleEvent(TS_FETCH_EVENT_EXT_BODY_DONE, this);
+    goto out;
+  }
+
+  Debug(DEBUG_TAG, "[%s] chunked:%d, content_len: %" PRId64 ", recived_len: %" PRId64 ", avail: %" PRId64 "\n",
+        __FUNCTION__, resp_is_chunked, resp_content_length, resp_recived_body_len,
+        resp_is_chunked > 0 ? chunked_handler.chunked_reader->read_avail() : resp_reader->read_avail());
+
+  if (resp_is_chunked > 0) {
+    if (!chunked_handler.chunked_reader->read_avail())
+      goto out;
+  } else if (!resp_reader->read_avail()) {
+      goto out;
+  }
+
+  if (!check_chunked()) {
+    if (!check_body_done())
+      contp->handleEvent(TS_FETCH_EVENT_EXT_BODY_READY, this);
+    else
+      contp->handleEvent(TS_FETCH_EVENT_EXT_BODY_DONE, this);
+  } else if (fetch_flags & TS_FETCH_FLAGS_DECHUNK){
+    do {
+      if (chunked_handler.state == ChunkedHandler::CHUNK_FLOW_CONTROL) {
+        chunked_handler.state = ChunkedHandler::CHUNK_READ_SIZE_START;
+      }
+
+      event = dechunk_body();
+      if (!event) {
+        read_vio->reenable();
+        goto out;
+      }
+
+      contp->handleEvent(event, this);
+    } while (chunked_handler.state == ChunkedHandler::CHUNK_FLOW_CONTROL);
+  } else if (check_body_done()){
+    contp->handleEvent(TS_FETCH_EVENT_EXT_BODY_DONE, this);
+  } else {
+    contp->handleEvent(TS_FETCH_EVENT_EXT_BODY_READY, this);
+  }
+
+out:
+  if (fetch_flags & TS_FETCH_FLAGS_NEWLOCK) {
+    MUTEX_UNTAKE_LOCK(cont_mutex, mythread);
+  }
+  recursion--;
+
+  if (!contp && !recursion)
+    cleanUp();
+
+  return;
+}
+
+void
+FetchSM::get_info_from_buffer(IOBufferReader *the_reader)
+{
+  char *buf, *info;
+  int64_t read_avail, read_done;
+  IOBufferBlock *blk;
+  IOBufferReader *reader = the_reader;
+
+  if (!reader) {
+    client_bytes = 0;
+    return ;
+  }
+
+  read_avail = reader->read_avail();
+  Debug(DEBUG_TAG, "[%s] total avail %" PRId64 , __FUNCTION__, read_avail);
+  if (!read_avail) {
+    client_bytes = 0;
+    return;
+  }
+
+  info = (char *)ats_malloc(sizeof(char) * (read_avail+1));
+  client_response = info;
+
+  if (!check_chunked()) {
+    /* Read the data out of the reader */
+    while (read_avail > 0) {
+      if (reader->block != NULL)
+        reader->skip_empty_blocks();
+      blk = reader->block;
+
+      // This is the equivalent of TSIOBufferBlockReadStart()
+      buf = blk->start() + reader->start_offset;
+      read_done = blk->read_avail() - reader->start_offset;
+
+      if (read_done > 0) {
+        memcpy(info, buf, read_done);
+        reader->consume(read_done);
+        read_avail -= read_done;
+        info += read_done;
+        client_bytes += read_done;
+      }
+    }
+    client_response[client_bytes] = '\0';
+    return;
+  }
+
+  reader = chunked_handler.dechunked_reader;
+  do {
+    if (chunked_handler.state == ChunkedHandler::CHUNK_FLOW_CONTROL) {
+      chunked_handler.state = ChunkedHandler::CHUNK_READ_SIZE_START;
+    }
+
+    if (!dechunk_body())
+      break;
+
+    /* Read the data out of the reader */
+    read_avail = reader->read_avail();
+    while (read_avail > 0) {
+      if (reader->block != NULL)
+        reader->skip_empty_blocks();
+      blk = reader->block;
+
+      // This is the equivalent of TSIOBufferBlockReadStart()
+      buf = blk->start() + reader->start_offset;
+      read_done = blk->read_avail() - reader->start_offset;
+
+      if (read_done > 0) {
+        memcpy(info, buf, read_done);
+        reader->consume(read_done);
+        read_avail -= read_done;
+        info += read_done;
+        client_bytes += read_done;
+      }
+    }
+  } while (chunked_handler.state == ChunkedHandler::CHUNK_FLOW_CONTROL);
+
+  client_response[client_bytes] = '\0';
+  return;
+}
+
+void
+FetchSM::process_fetch_read(int event)
+{
+  Debug(DEBUG_TAG, "[%s] I am here read", __FUNCTION__);
+  int64_t bytes;
+  int bytes_used;
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+    bytes = resp_reader->read_avail();
+    Debug(DEBUG_TAG, "[%s] number of bytes in read ready %" PRId64, __FUNCTION__, bytes);
+    if (header_done == 0 && ((fetch_flags & TS_FETCH_FLAGS_STREAM) || callback_options == AFTER_HEADER)) {
+      if (client_response_hdr.parse_resp(&http_parser, resp_reader, &bytes_used, 0) == PARSE_DONE) {
+        header_done = 1;
+        if (fetch_flags & TS_FETCH_FLAGS_STREAM)
+          return InvokePluginExt();
+        else
+          InvokePlugin( callback_events.success_event_id, (void *) &client_response_hdr);
+      }
+    } else {
+      if (fetch_flags & TS_FETCH_FLAGS_STREAM)
+        return InvokePluginExt();
+      else
+        InvokePlugin(TS_FETCH_EVENT_EXT_BODY_READY, this);
+    }
+    read_vio->reenable();
+    break;
+  case TS_EVENT_VCONN_READ_COMPLETE:
+  case TS_EVENT_VCONN_EOS:
+    if (fetch_flags & TS_FETCH_FLAGS_STREAM)
+      return InvokePluginExt();
+    if(callback_options == AFTER_HEADER || callback_options == AFTER_BODY) {
+      get_info_from_buffer(resp_reader);
+      InvokePlugin( callback_events.success_event_id, (void *) this);
+    }
+    Debug(DEBUG_TAG, "[%s] received EOS", __FUNCTION__);
+    cleanUp();
+    break;
+  case TS_EVENT_ERROR:
+  default:
+    if (fetch_flags & TS_FETCH_FLAGS_STREAM)
+      return InvokePluginExt(event);
+    InvokePlugin( callback_events.failure_event_id, NULL);
+    cleanUp();
+    break;
+  }
+}
+
+void
+FetchSM::process_fetch_write(int event)
+{
+  Debug(DEBUG_TAG, "[%s] calling process write", __FUNCTION__);
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    req_finished = true;
+    break;
+  case TS_EVENT_VCONN_WRITE_READY:
+    // data is processed in chunks of 32k; if there is more than 32k
+    // of input data, we have to continue reenabling until all data is
+    // read (we have already written all the data to the buffer)
+    if (req_reader->read_avail() > 0)
+      ((PluginVC *) http_vc)->reenable(write_vio);
+    break;
+  case TS_EVENT_ERROR:
+    if (fetch_flags & TS_FETCH_FLAGS_STREAM)
+      return InvokePluginExt(event);
+    InvokePlugin( callback_events.failure_event_id, NULL);
+    cleanUp();
+  default:
+    break;
+  }
+}
+
+int
+FetchSM::fetch_handler(int event, void *edata)
+{
+  Debug(DEBUG_TAG, "[%s] calling fetch_plugin", __FUNCTION__);
+
+  if (edata == read_vio) {
+    process_fetch_read(event);
+  } else if (edata == write_vio) {
+    process_fetch_write(event);
+  } else {
+    if (fetch_flags & TS_FETCH_FLAGS_STREAM) {
+      InvokePluginExt(event);
+      return 1;
+    }
+    InvokePlugin( callback_events.failure_event_id, NULL);
+    cleanUp();
+  }
+  return 1;
+}
+
+void
+FetchSM::ext_init(Continuation *cont, TSFetchMethod method,
+                  const char *url, const char *version,
+                  const sockaddr *client_addr, int flags)
+{
+  init_comm();
+
+  if (flags & TS_FETCH_FLAGS_NEWLOCK) {
+    mutex = new_ProxyMutex();
+    cont_mutex = cont->mutex;
+  } else {
+    mutex = cont->mutex;
+  }
+
+  contp = cont;
+  _addr.assign(client_addr);
+
+  //
+  // Enable stream IO automatically.
+  //
+  fetch_flags = (TS_FETCH_FLAGS_STREAM | flags);
+
+  //
+  // These options are not used when enable
+  // stream IO.
+  //
+  memset(&callback_options, 0, sizeof(callback_options));
+  memset(&callback_events, 0, sizeof(callback_events));
+
+  req_method = method;
+  req_buffer->write(http_method[method], strlen(http_method[method]));
+  req_buffer->write(" ", 1);
+  req_buffer->write(url, strlen(url));
+  req_buffer->write(" ", 1);
+  req_buffer->write(version, strlen(version));
+  req_buffer->write("\r\n", 2);
+}
+
+void
+FetchSM::ext_add_header(const char *name, int name_len,
+                        const char *value, int value_len)
+{
+  if (TS_MIME_LEN_CONTENT_LENGTH == name_len &&
+      !strncasecmp(TS_MIME_FIELD_CONTENT_LENGTH, name, name_len)) {
+    req_content_length = atoll(value);
+  }
+
+  req_buffer->write(name, name_len);
+  req_buffer->write(": ", 2);
+  req_buffer->write(value, value_len);
+  req_buffer->write("\r\n", 2);
+}
+
+void
+FetchSM::ext_lanuch()
+{
+  req_buffer->write("\r\n", 2);
+  httpConnect();
+}
+
+void
+FetchSM::ext_write_data(const void *data, size_t len)
+{
+  bool writeReady = (header_done ||
+		    (req_method == TS_FETCH_METHOD_POST) ||
+		    (req_method == TS_FETCH_METHOD_PUT));
+
+  if (writeReady && (fetch_flags & TS_FETCH_FLAGS_NEWLOCK)) {
+    MUTEX_TAKE_LOCK(mutex, this_ethread());
+  }
+
+  req_buffer->write(data, len);
+
+  //
+  // Before header_done, FetchSM may not
+  // be initialized.
+  //
+  if (writeReady) {
+    Debug(DEBUG_TAG, "[%s] re-enabling write_vio, header_done %u, req_method %u", __FUNCTION__, header_done, req_method);
+    write_vio->reenable();
+    fetch_handler(TS_EVENT_VCONN_WRITE_READY, write_vio);
+  }
+
+  if (writeReady && (fetch_flags & TS_FETCH_FLAGS_NEWLOCK)) {
+    MUTEX_UNTAKE_LOCK(mutex, this_ethread());
+  }
+}
+
+ssize_t
+FetchSM::ext_read_data(char *buf, size_t len)
+{
+  const char *start;
+  TSIOBufferReader reader;
+  TSIOBufferBlock blk, next_blk;
+  int64_t already, blk_len, need, wavail;
+
+  if (fetch_flags & TS_FETCH_FLAGS_NEWLOCK) {
+    MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+    if (!lock)
+      return 0;
+  }
+
+  if (!header_done)
+    return 0;
+
+  if (check_chunked() && (fetch_flags & TS_FETCH_FLAGS_DECHUNK))
+    reader = (tsapi_bufferreader*)chunked_handler.dechunked_reader;
+  else
+    reader = (TSIOBufferReader)resp_reader;
+
+  already = 0;
+  blk = TSIOBufferReaderStart(reader);
+
+  while (blk) {
+
+    wavail = len - already;
+
+    next_blk = TSIOBufferBlockNext(blk);
+    start = TSIOBufferBlockReadStart(blk, reader, &blk_len);
+
+    need = blk_len > wavail ? wavail : blk_len;
+
+    memcpy(&buf[already], start, need);
+    already += need;
+
+    if (already >= (int64_t)len)
+      break;
+
+    blk = next_blk;
+  }
+
+  resp_recived_body_len += already;
+  TSIOBufferReaderConsume(reader, already);
+
+  read_vio->reenable();
+  return already;
+}
+
+void
+FetchSM::ext_destroy()
+{
+  contp = NULL;
+
+  if (recursion)
+    return;
+
+  if (fetch_flags & TS_FETCH_FLAGS_NEWLOCK) {
+    MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+    if (!lock) {
+      eventProcessor.schedule_in(this, FETCH_LOCK_RETRY_TIME);
+      return;
+    }
+  }
+
+  cleanUp();
+}
+
+void
+FetchSM::ext_set_user_data(void *data)
+{
+  user_data = data;
+}
+
+void*
+FetchSM::ext_get_user_data()
+{
+  return user_data;
+}
+
+TSMBuffer
+FetchSM::resp_hdr_bufp()
+{
+  HdrHeapSDKHandle *heap;
+  heap = (HdrHeapSDKHandle *)&client_response_hdr;
+
+  return (TSMBuffer)heap;
+}
+
+TSMLoc
+FetchSM::resp_hdr_mloc()
+{
+  return (TSMLoc)client_response_hdr.m_http;
+}
diff --git a/proxy/FetchSM.h b/proxy/FetchSM.h
new file mode 100644
index 00000000..c1b94bff
--- /dev/null
+++ b/proxy/FetchSM.h
@@ -0,0 +1,174 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ *
+ *  FetchSM.h header file for Fetch Page
+ *
+ ****************************************************************************/
+
+#ifndef _FETCH_SM_H
+#define _FETCH_SM_H
+
+#include "P_Net.h"
+#include "ts.h"
+#include "HttpSM.h"
+#include "HttpTunnel.h"
+
+class PluginVC;
+
+class FetchSM: public Continuation
+{
+public:
+  FetchSM()
+  { }
+
+  void init_comm()
+  {
+    recursion = 0;
+    req_finished = 0;
+    resp_finished = 0;
+    header_done = 0;
+    user_data = NULL;
+    has_sent_header = false;
+    req_method = TS_FETCH_METHOD_NONE;
+    req_content_length = 0;
+    resp_is_chunked = -1;
+    resp_content_length = -1;
+    resp_recived_body_len = 0;
+    cont_mutex.clear();
+    req_buffer = new_MIOBuffer(HTTP_HEADER_BUFFER_SIZE_INDEX);
+    req_reader = req_buffer->alloc_reader();
+    resp_buffer = new_MIOBuffer(BUFFER_SIZE_INDEX_32K);
+    resp_reader = resp_buffer->alloc_reader();
+    http_parser_init(&http_parser);
+    client_response_hdr.create(HTTP_TYPE_RESPONSE);
+    client_response  = NULL;
+    SET_HANDLER(&FetchSM::fetch_handler);
+  }
+
+  void init(Continuation* cont, TSFetchWakeUpOptions options,
+            TSFetchEvent events, const char* headers, int length,
+            sockaddr const *addr)
+  {
+    Debug("FetchSM", "[%s] FetchSM initialized for request with headers\n--\n%.*s\n--",
+          __FUNCTION__, length, headers);
+    init_comm();
+    contp = cont;
+    callback_events = events;
+    callback_options = options;
+    _addr.assign(addr);
+    fetch_flags = TS_FETCH_FLAGS_DECHUNK;
+    writeRequest(headers,length);
+    mutex = new_ProxyMutex();
+
+    //
+    // We had dropped response_buffer/respone_reader to avoid unnecessary
+    // memory copying. But for the original TSFetchURL() API, PluginVC may
+    // stop adding data to resp_buffer when the pending data in resp_buffer
+    // reach its water_mark.
+    //
+    // So we should set the water_mark of resp_buffer with a large value,
+    // INT64_MAX would be reasonable.
+    resp_buffer->water_mark = INT64_MAX;
+  }
+
+  int fetch_handler(int event, void *data);
+  void process_fetch_read(int event);
+  void process_fetch_write(int event);
+  void httpConnect();
+  void cleanUp();
+  void get_info_from_buffer(IOBufferReader *reader);
+  char* resp_get(int* length);
+
+  TSMBuffer resp_hdr_bufp();
+  TSMLoc resp_hdr_mloc();
+
+  //
+  // Extended APIs for FetchSM
+  //
+  // *flags* can be bitwise OR of several TSFetchFlags
+  //
+  void ext_init(Continuation *cont, TSFetchMethod method,
+                const char *url, const char *version,
+                const sockaddr *client_addr, int flags);
+  void ext_add_header(const char *name, int name_len,
+                      const char *value, int value_len);
+  void ext_lanuch();
+  void ext_destroy();
+  ssize_t ext_read_data(char *buf, size_t len);
+  void ext_write_data(const void *data, size_t len);
+  void ext_set_user_data(void *data);
+  void* ext_get_user_data();
+
+private:
+  int InvokePlugin(int event, void*data);
+  void InvokePluginExt(int error_event = 0);
+
+  void writeRequest(const char *headers,int length)
+  {
+    if(length == -1)
+    req_buffer->write(headers, strlen(headers));
+    else
+    req_buffer->write(headers,length);
+  }
+
+  int64_t getReqLen() const { return req_reader->read_avail(); }
+
+  bool has_body();
+  bool check_body_done();
+  bool check_chunked();
+  int dechunk_body();
+
+  int recursion;
+  PluginVC* http_vc;
+  VIO *read_vio;
+  VIO *write_vio;
+  MIOBuffer *req_buffer;
+  IOBufferReader *req_reader;
+  char *client_response;
+  int  client_bytes;
+  MIOBuffer *resp_buffer;       // response to HttpConnect Call
+  IOBufferReader *resp_reader;
+  Continuation *contp;
+  Ptr<ProxyMutex> cont_mutex;
+  HTTPParser http_parser;
+  HTTPHdr client_response_hdr;
+  ChunkedHandler chunked_handler;
+  TSFetchEvent callback_events;
+  TSFetchWakeUpOptions callback_options;
+  bool req_finished;
+  bool header_done;
+  bool resp_finished;
+  IpEndpoint _addr;
+  int resp_is_chunked;
+  int fetch_flags;
+  void *user_data;
+  bool has_sent_header;
+  TSFetchMethod req_method;
+  int64_t req_content_length;
+  int64_t resp_content_length;
+  int64_t resp_recived_body_len;
+};
+
+#endif
diff --git a/proxy/HttpTransStats.h b/proxy/HttpTransStats.h
new file mode 100644
index 00000000..20d13bde
--- /dev/null
+++ b/proxy/HttpTransStats.h
@@ -0,0 +1,26 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+_HEADER
+  //
+  _FOOTER
diff --git a/proxy/ICP.cc b/proxy/ICP.cc
new file mode 100644
index 00000000..6d1cb98e
--- /dev/null
+++ b/proxy/ICP.cc
@@ -0,0 +1,2457 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ICP.cc
+
+
+****************************************************************************/
+
+#include "libts.h"
+#include "Main.h"
+#include "P_EventSystem.h"
+#include "P_Cache.h"
+#include "P_Net.h"
+#include "MgmtUtils.h"
+#include "P_RecProcess.h"
+#include "ICP.h"
+#include "ICPProcessor.h"
+#include "ICPlog.h"
+#include "logging/Log.h"
+#include "logging/LogAccessICP.h"
+#include "BaseManager.h"
+#include "HdrUtils.h"
+
+extern CacheLookupHttpConfig global_cache_lookup_config;
+HTTPHdr gclient_request;
+
+//****************************************************************************
+//  File Overview:
+//  ==============
+//      ICP files
+//        ICP.h           -- All ICP class definitions.
+//        ICPlog.h        -- ICP log object for logging system
+//        ICP.cc          -- Incoming/outgoing ICP request and ICP configuration
+//                           data base management.
+//        ICPConfig.cc    -- ICP interface to Traffic Server configuration
+//                           management, member functions for ICPlog (object
+//                           passed to logging system) along with
+//                           miscellaneous support routines.
+//        ICPevents.h     -- Event definitions specific to ICP.
+//        ICPProcessor.h  -- ICP external interface for other subsystems.
+//                           External subsystems only need to include this
+//                           header to use ICP.
+//        ICPProcessor.cc -- ICP external interface implementation.
+//        ICPStats.cc     -- ICP statistic callback registration.
+//
+//
+//  Class Overview:
+//  ===============
+//    ICPConfigData  -- Manages global ICP data from the TS configuration
+//                      manager.
+//    PeerConfigData -- Manages  ICP peer data from the TS configuration
+//                      manager.
+//    ICPConfigUpdateCont -- Used by
+//                        ICPConfiguration::icp_config_change_callback()
+//                        to retry callout after a delay in cases where
+//                        we cannot acquire the configuration lock.
+//    ICPConfiguration -- Overall manager of ICP configuration from TS
+//                        configuration.  Acts as interface and uses
+//                        ICPConfigData and PeerConfigData to implement
+//                        actions.  Also fields/processes TS configuration
+//                        callouts for "icp.config" changes.  ICP classes only
+//                        see ICPConfiguration when dealing with TS
+//                        configuration info.
+//
+//    Peer (base class) -- abstract base class
+//      ParentSiblingPeer : Peer  -- ICP object describing parent/sibling
+//                                   peer which is initialized from the
+//                                   TS configuration data.
+//      MultiCastPeer : Peer -- ICP object describing MultiCast peer.
+//                              Object is initialized from the TS
+//                              configuration data.
+//
+//    BitMap -- Generic bit map management class
+//
+//    ICPProcessor -- Central class which starts all periodic events
+//                 and maintains ICP configuration database.  Delegates
+//                 incoming data processing to ICPHandlerCont and
+//                 outgoing data processing to ICPRequestCont. Implements
+//                 reconfiguration actions and query requests from the
+//                 external interface.
+//
+//    ICPRequestCont -- Implements the state machine which processes
+//                 locally generated ICP queries.  Generates message
+//                 queries and processes query responses.  Responses
+//                 received via callout from ICPPeerReadCont.
+//
+//    PeriodicCont (base class) -- abstract base class
+//      ICPPeriodicCont : PeriodicCont -- Periodic which looks for ICP
+//                 configuration changes sent by the Traffic Server
+//                 configuration manager, and initiates ICP reconfiguration
+//                 in the event we have a valid configuration change via
+//                 ICPProcessor::ReconfigureStateMachine().
+//
+//      ICPHandlerCont : PeriodicCont -- Periodic which monitors incoming
+//                 ICP sockets and starts processing of the incoming ICP data.
+//
+//    ICPPeerReadCont -- Implements the incoming data state machine.
+//                 Processes remote ICP query requests and passes query
+//                 responses to ICPRequestCont via a callout.
+//    ICPlog -- Logging object which encapsulates ICP query info required
+//              by the new logging subsystem to produce squid access log
+//              data for ICP queries.
+//
+//****************************************************************************
+//
+//  ICP is integrated into HTTP miss processing as follows.
+//
+//  if (HTTP Traffic Server Miss) {
+//    if (proxy.config.icp.enabled) {
+//      Status = QueryICP(URL, &target_ip);
+//      if (Status == ICP_HIT)
+//        Issue Http Request to (target_ip, proxy_port);
+//    }
+//    if (proxy.config.http.parent_proxy_routing_enable) {
+//      Issue Http Request to (proxy.config.http.parent_proxy_hostname,
+//                             proxy.config.http.parent_proxy_port)
+//    }
+//    else
+//      Issue Http Request to Origin Server
+//  }
+//
+//****************************************************************************
+
+// VC++ 5.0 is rather picky
+typedef int (ICPPeerReadCont::*ICPPeerReadContHandler) (int, void *);
+typedef int (ICPPeriodicCont::*ICPPeriodicContHandler) (int, void *);
+typedef int (ICPHandlerCont::*ICPHandlerContHandler) (int, void *);
+typedef int (ICPRequestCont::*ICPRequestContHandler) (int, void *);
+
+// Plugin freshness function
+PluginFreshnessCalcFunc pluginFreshnessCalcFunc = (PluginFreshnessCalcFunc) NULL;
+
+//---------------------------------------
+// Class ICPHandlerCont member functions
+//      Deal with incoming ICP data
+//---------------------------------------
+
+// Static data declarations
+//Allocator *ICPHandlerCont::IncomingICPDataBuf;
+int64_t ICPHandlerCont::ICPDataBuf_IOBuffer_sizeindex;
+static ClassAllocator <ICPPeerReadCont::PeerReadData>PeerReadDataAllocator("PeerReadDataAllocator");
+static ClassAllocator<ICPPeerReadCont> ICPPeerReadContAllocator("ICPPeerReadContAllocator");
+
+static Action *default_action = NULL;
+
+
+ICPHandlerCont::ICPHandlerCont(ICPProcessor * icpP)
+ : PeriodicCont(icpP)
+{
+}
+
+// do nothing continuation handler
+int
+ICPHandlerCont::TossEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  return EVENT_DONE;
+}
+
+int
+ICPHandlerCont::PeriodicEvent(int event, Event * /* e ATS_UNUSED */)
+{
+  int n_peer, valid_peers;
+  Peer *P;
+
+  // Periodic handler which initiates incoming message processing
+  // on the defined peers.
+
+  valid_peers = _ICPpr->GetRecvPeers();
+
+  // get peer info from the completionEvent token.
+  switch (event) {
+  case EVENT_POLL:
+  case EVENT_INTERVAL:
+    {
+      // start read I/Os on peers which don't have outstanding I/Os
+      for (n_peer = 0; n_peer < valid_peers; ++n_peer) {
+        P = _ICPpr->GetNthRecvPeer(n_peer, _ICPpr->GetLastRecvPeerBias());
+        if (!P || (P && !P->IsOnline()))
+          continue;
+        if (P->shouldStartRead()) {
+          P->startingRead();
+          ///////////////////////////////////////////
+          // Setup state machine
+          ///////////////////////////////////////////
+          ICPPeerReadCont *s = ICPPeerReadContAllocator.alloc();
+          int local_lookup = _ICPpr->GetConfig()->globalConfig()->ICPLocalCacheLookup();
+
+          s->init(_ICPpr, P, local_lookup);
+          RECORD_ICP_STATE_CHANGE(s, event, ICPPeerReadCont::READ_ACTIVE);
+
+          ///////////////////////////////////////////
+          // Start processing
+          ///////////////////////////////////////////
+          s->handleEvent(EVENT_INTERVAL, (Event *) 0);
+        }
+      }
+      break;
+    }
+  default:
+    {
+      ink_release_assert(!"unexpected event");
+      break;
+    }
+  }                             // End of switch
+  return EVENT_CONT;
+}
+
+//***************************************************************************
+// Nested Class PeerReadData member functions
+//      Used by ICPPeerReadCont to encapsulate the data required by
+//      PeerReadStateMachine
+//***************************************************************************
+ICPPeerReadCont::PeerReadData::PeerReadData()
+{
+  init();
+}
+
+void
+ICPPeerReadCont::PeerReadData::init()
+{
+  _start_time = 0;
+  _mycont = 0;
+  _peer = 0;
+  _next_state = READ_ACTIVE;
+  _cache_lookup_local = 0;
+  _buf = 0;
+  _rICPmsg = 0;
+  _rICPmsg_len = 0;
+  _cachelookupURL.clear();
+  _queryResult = 0;
+  _ICPReqCont = 0;
+  _bytesReceived = 0;
+#ifdef DEBUG_ICP
+  _nhistory = 0;
+#endif
+  memset((void *) &_sender, 0, sizeof(_sender));
+}
+
+ICPPeerReadCont::PeerReadData::~PeerReadData()
+{
+  reset(1);
+}
+
+void
+ICPPeerReadCont::PeerReadData::reset(int full_reset)
+{
+  if (full_reset) {
+    _peer = 0;
+    _buf = 0;
+  }
+  if (_rICPmsg) {
+    _rICPmsg = 0;
+    _rICPmsg_len = 0;
+  }
+
+  if (_cachelookupURL.valid()) {
+    _cachelookupURL.destroy();
+  }
+}
+
+//***************************************************************************
+
+//------------------------------------------------------------------------
+// ICPPeerReadCont -- ICP incoming message processing state machine
+//------------------------------------------------------------------------
+ICPPeerReadCont::ICPPeerReadCont():Continuation(0), _object_vc(NULL), _object_read(NULL),
+_cache_req_hdr_heap_handle(NULL), _cache_resp_hdr_heap_handle(NULL), _ICPpr(NULL), _state(NULL),
+_start_time(0), _recursion_depth(0)
+{
+}
+
+void
+ICPPeerReadCont::init(ICPProcessor * ICPpr, Peer * p, int lookup_local)
+{
+  PeerReadData *s = PeerReadDataAllocator.alloc();
+  s->init();
+  s->_start_time = ink_get_hrtime();
+  s->_peer = p;
+  s->_next_state = READ_ACTIVE;
+  s->_cache_lookup_local = lookup_local;
+  SET_HANDLER((ICPPeerReadContHandler) & ICPPeerReadCont::ICPPeerReadEvent);
+  _ICPpr = ICPpr;
+  _state = s;
+  _recursion_depth = -1;
+  _object_vc = NULL;
+  _object_read = NULL;
+  _cache_req_hdr_heap_handle = NULL;
+  _cache_resp_hdr_heap_handle = NULL;
+  mutex = new_ProxyMutex();
+}
+
+ICPPeerReadCont::~ICPPeerReadCont()
+{
+  reset(1);                     // Full reset
+}
+
+void
+ICPPeerReadCont::reset(int full_reset)
+{
+  mutex = 0;
+  if (this->_state) {
+    this->_state->reset(full_reset);
+    PeerReadDataAllocator.free(this->_state);
+  }
+  if (_cache_req_hdr_heap_handle) {
+    ats_free(_cache_req_hdr_heap_handle);
+    _cache_req_hdr_heap_handle = NULL;
+  }
+  if (_cache_resp_hdr_heap_handle) {
+    ats_free(_cache_resp_hdr_heap_handle);
+    _cache_resp_hdr_heap_handle = NULL;
+  }
+}
+
+int
+ICPPeerReadCont::ICPPeerReadEvent(int event, Event * e)
+{
+  switch (event) {
+  case EVENT_INTERVAL:
+  case EVENT_IMMEDIATE:
+    {
+      break;
+    }
+  case NET_EVENT_DATAGRAM_WRITE_COMPLETE:
+  case NET_EVENT_DATAGRAM_READ_COMPLETE:
+  case NET_EVENT_DATAGRAM_READ_ERROR:
+  case NET_EVENT_DATAGRAM_WRITE_ERROR:
+    {
+      ink_assert((event != NET_EVENT_DATAGRAM_READ_COMPLETE)
+                 || (_state->_next_state == READ_DATA_DONE));
+      ink_assert((event != NET_EVENT_DATAGRAM_WRITE_COMPLETE)
+                 || (_state->_next_state == WRITE_DONE));
+
+      ink_release_assert(this == (ICPPeerReadCont *)
+                         completionUtil::getHandle(e));
+      break;
+    }
+  case CACHE_EVENT_LOOKUP_FAILED:
+  case CACHE_EVENT_LOOKUP:
+    {
+      ink_assert(_state->_next_state == AWAITING_CACHE_LOOKUP_RESPONSE);
+      break;
+    }
+  default:
+    {
+      ink_release_assert(!"unexpected event");
+    }
+  }                             // End of switch
+
+  // Front end to PeerReadStateMachine(), invoked by Event subsystem.
+  if (PeerReadStateMachine(_state, e) == EVENT_CONT) {
+    eventProcessor.schedule_in(this, RETRY_INTERVAL, ET_ICP);
+    return EVENT_DONE;
+
+  } else if (_state->_next_state == READ_PROCESSING_COMPLETE) {
+    _state->_peer->cancelRead();
+    this->reset(1);             // Full reset
+    ICPPeerReadContAllocator.free(this);
+    return EVENT_DONE;
+
+  } else {
+    return EVENT_DONE;
+  }
+}
+
+int
+ICPPeerReadCont::StaleCheck(int event, Event * /* e ATS_UNUSED */)
+{
+  ip_port_text_buffer ipb;
+
+  ink_release_assert(mutex->thread_holding == this_ethread());
+
+  Debug("icp-stale", "Stale check res=%d for id=%d, [%s] from [%s]",
+        event, _state->_rICPmsg->h.requestno,
+    _state->_rICPmsg->un.query.URL, ats_ip_nptop(&_state->_sender, ipb, sizeof(ipb)));
+
+  switch (event) {
+  case ICP_STALE_OBJECT:
+    {
+      _state->_queryResult = CACHE_EVENT_LOOKUP_FAILED;
+      break;
+    }
+  case ICP_FRESH_OBJECT:
+    {
+      _state->_queryResult = CACHE_EVENT_LOOKUP;
+      break;
+    }
+  default:
+    {
+      Debug("icp-stale", "ICPPeerReadCont::StaleCheck: Invalid Event %d\n", event);
+      _state->_queryResult = CACHE_EVENT_LOOKUP_FAILED;
+      break;
+    }
+  }
+  _object_vc->do_io(VIO::CLOSE);
+  _object_vc = 0;
+  SET_HANDLER((ICPPeerReadContHandler) & ICPPeerReadCont::ICPPeerReadEvent);
+  return handleEvent(_state->_queryResult, 0);
+}
+
+int
+ICPPeerReadCont::ICPPeerQueryEvent(int event, Event * e)
+{
+  ip_port_text_buffer ipb;
+
+  Debug("icp", "Remote Query lookup res=%d for id=%d, [%s] from [%s]",
+        event, _state->_rICPmsg->h.requestno,
+    _state->_rICPmsg->un.query.URL, ats_ip_nptop(&_state->_sender, ipb, sizeof(ipb)));
+  if (pluginFreshnessCalcFunc) {
+    switch (event) {
+    case CACHE_EVENT_OPEN_READ:
+      {
+        _object_vc = (CacheVConnection *) e;
+        SET_HANDLER((ICPPeerReadContHandler) & ICPPeerReadCont::StaleCheck);
+        _object_vc->get_http_info(&_object_read);
+        (*pluginFreshnessCalcFunc) ((void *) this);
+        return EVENT_DONE;
+      }
+    case CACHE_EVENT_OPEN_READ_FAILED:
+      {
+        event = CACHE_EVENT_LOOKUP_FAILED;
+        break;
+      }
+    default:
+      break;
+    }
+  }
+  // Process result
+  _state->_queryResult = event;
+  SET_HANDLER((ICPPeerReadContHandler) & ICPPeerReadCont::ICPPeerReadEvent);
+  return handleEvent(event, e);
+}
+
+int
+ICPPeerReadCont::ICPPeerQueryCont(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  ip_port_text_buffer ipb;
+  Action *a;
+
+  // Perform lookup()/open_read() on behalf of PeerReadStateMachine()
+
+  ((char *) _state->_rICPmsg)[MAX_ICP_MSGSIZE - 1] = 0; // null terminate
+  _state->_cachelookupURL.create(NULL);
+  const char *qurl = (const char *) _state->_rICPmsg->un.query.URL;
+  _state->_cachelookupURL.parse(qurl, strlen(qurl));
+  Debug("icp", "Remote Query for id=%d, [%s] from [%s]",
+        _state->_rICPmsg->h.requestno,
+        _state->_rICPmsg->un.query.URL,
+    ats_ip_nptop(&_state->_sender, ipb, sizeof(ipb))
+  );
+
+  SET_HANDLER((ICPPeerReadContHandler) & ICPPeerReadCont::ICPPeerQueryEvent);
+  if (_state->_rICPmsg->un.query.URL && *_state->_rICPmsg->un.query.URL) {
+    _state->_queryResult = ~CACHE_EVENT_LOOKUP_FAILED;
+    _start_time = ink_get_hrtime();
+    if (pluginFreshnessCalcFunc && _ICPpr->GetConfig()->globalConfig()->ICPStaleLookup()) {
+      //////////////////////////////////////////////////////////////
+      // Note: _cache_lookup_local is ignored in this case, since
+      //       cache clustering is not used with stale lookup.
+      //////////////////////////////////////////////////////////////
+      a = cacheProcessor.open_read(this, &_state->_cachelookupURL, false,
+                                   &gclient_request, &global_cache_lookup_config, (time_t) 0);
+    } else {
+      a = cacheProcessor.lookup(this, &_state->_cachelookupURL, false, _state->_cache_lookup_local);
+    }
+    if (!a) {
+      a = ACTION_IO_ERROR;
+    }
+    if (a == ACTION_RESULT_DONE) {
+      return EVENT_DONE;        // callback complete
+    } else if (a == ACTION_IO_ERROR) {
+      handleEvent(CACHE_EVENT_LOOKUP_FAILED, 0);
+      return EVENT_DONE;        // callback complete
+    } else {
+      return EVENT_CONT;        // callback pending
+    }
+  } else {
+    // Null URL, return failed lookup
+    handleEvent(CACHE_EVENT_LOOKUP_FAILED, 0);
+    return EVENT_DONE;          // callback done
+  }
+}
+
+struct AutoReference
+{
+  AutoReference(int *cnt)
+  {
+    _cnt = cnt;
+    (*_cnt)++;
+  }
+   ~AutoReference()
+  {
+    (*_cnt)--;
+  }
+  int *_cnt;
+};
+
+int
+ICPPeerReadCont::PeerReadStateMachine(PeerReadData * s, Event * e)
+{
+  AutoReference l(&_recursion_depth);
+  ip_port_text_buffer ipb; // scratch buffer for diagnostic messages.
+  //-----------------------------------------------------------
+  // State machine to process ICP data received on UDP socket
+  //-----------------------------------------------------------
+  MUTEX_TRY_LOCK(lock, this->mutex, this_ethread());
+  if (!lock) {
+    // we didn't get the lock, so we don't need to unlock it
+    // coverity[missing_unlock]
+    return EVENT_CONT;          // try again later
+  }
+
+  while (1) {                   // loop forever
+
+    switch (s->_next_state) {
+    case READ_ACTIVE:
+      {
+        ink_release_assert(_recursion_depth == 0);
+        if (!_ICPpr->Lock())
+          return EVENT_CONT;    // unable to get lock, try again later
+
+        bool valid_peer = (_ICPpr->IdToPeer(s->_peer->GetPeerID()) == s->_peer);
+
+        if (valid_peer && _ICPpr->AllowICPQueries()
+            && _ICPpr->GetConfig()->globalConfig()->ICPconfigured()) {
+
+          // Note pending incoming ICP request or response
+          _ICPpr->IncPendingQuery();
+          _ICPpr->Unlock();
+
+          s->_next_state = READ_DATA;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_DATA);
+          break;                // move to next_state
+
+        } else {
+          _ICPpr->Unlock();
+
+          // ICP NOT enabled, do nothing
+          s->_next_state = READ_PROCESSING_COMPLETE;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_PROCESSING_COMPLETE);
+          return EVENT_DONE;
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case READ_DATA:
+      {
+        ink_release_assert(_recursion_depth == 0);
+
+        // Assumption of one outstanding read per peer...
+        // Setup read from FD
+        ink_assert(s->_peer->buf == NULL);
+        Ptr<IOBufferBlock> buf = s->_peer->buf = new_IOBufferBlock();
+        buf->alloc(ICPHandlerCont::ICPDataBuf_IOBuffer_sizeindex);
+        s->_peer->fromaddrlen = sizeof(s->_peer->fromaddr);
+        buf->fill(sizeof(ICPMsg_t));    // reserve space for decoding
+        char *be = buf->buf_end() - 1;
+        be[0] = 0;              // null terminate buffer
+        s->_next_state = READ_DATA_DONE;
+        RECORD_ICP_STATE_CHANGE(s, 0, READ_DATA_DONE);
+        ink_assert(s->_peer->readAction == NULL);
+        Action *a = s->_peer->RecvFrom_re(this, this, buf,
+                                          buf->write_avail() - 1,
+                                          &s->_peer->fromaddr.sa,
+                                          &s->_peer->fromaddrlen);
+        if (!a) {
+          a = ACTION_IO_ERROR;
+        }
+        if (a == ACTION_RESULT_DONE) {
+          // we will have been called back already and our state updated
+          // appropriately.
+          // move to next state
+          ink_assert(s->_next_state == PROCESS_READ_DATA);
+          break;
+        } else if (a == ACTION_IO_ERROR) {
+          // actually, this *could* be taken care of by the main handler, but
+          // error processing makes more sense at this point.  Therefore,
+          // the main handler ignores the errors.
+          //
+          // No data, terminate read loop.
+          //
+          ICP_INCREMENT_DYN_STAT(no_data_read_stat);
+          s->_peer->buf = NULL; // release reference
+          s->_next_state = READ_NOT_ACTIVE_EXIT;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE_EXIT);
+          // move to next state
+          break;
+        } else {
+          s->_peer->readAction = a;
+          return EVENT_DONE;
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case READ_DATA_DONE:
+      {
+        // Convert ICP message from network to host format
+        if (s->_peer->readAction != NULL) {
+          ink_assert(s->_peer->readAction == e);
+          s->_peer->readAction = NULL;
+        }
+        s->_bytesReceived = completionUtil::getBytesTransferred(e);
+
+        if (s->_bytesReceived >= 0) {
+          s->_next_state = PROCESS_READ_DATA;
+          RECORD_ICP_STATE_CHANGE(s, 0, PROCESS_READ_DATA);
+        } else {
+          ICP_INCREMENT_DYN_STAT(no_data_read_stat);
+          s->_peer->buf = NULL; // release reference
+          s->_next_state = READ_NOT_ACTIVE_EXIT;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE_EXIT);
+        }
+        if (_recursion_depth > 0) {
+          return EVENT_DONE;
+        } else {
+          break;
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case PROCESS_READ_DATA:
+    case ADD_PEER:
+      {
+        ink_release_assert(_recursion_depth == 0);
+
+        Ptr<IOBufferBlock> bufblock = s->_peer->buf;
+        char *buf = bufblock->start();
+
+        if (s->_next_state == PROCESS_READ_DATA) {
+          ICPRequestCont::NetToHostICPMsg((ICPMsg_t *)
+                                          (buf + sizeof(ICPMsg_t)), (ICPMsg_t *) buf);
+
+          // adjust buffer pointers to point to decoded message.
+          bufblock->reset();
+          bufblock->fill(s->_bytesReceived);
+
+          // Validate message length for sanity
+          if (s->_bytesReceived < ((ICPMsg_t *) buf)->h.msglen) {
+            //
+            // Short read, terminate
+            //
+            ICP_INCREMENT_DYN_STAT(short_read_stat);
+            s->_peer->buf = NULL;
+            s->_next_state = READ_NOT_ACTIVE;
+            RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+            break;              // move to next_state
+          }
+        }
+        // Validate receiver and convert the received sockaddr
+        //   to internal sockaddr format.
+        IpEndpoint from;
+        if (!s->_peer->ExtToIntRecvSockAddr(&s->_peer->fromaddr.sa, &from.sa)) {
+          int status;
+          ICPConfigData *cfg = _ICPpr->GetConfig()->globalConfig();
+          ICPMsg_t *ICPmsg = (ICPMsg_t *) buf;
+
+          if ((cfg->ICPconfigured() == ICP_MODE_RECEIVE_ONLY) &&
+              cfg->ICPReplyToUnknownPeer() &&
+              ((ICPmsg->h.version == ICP_VERSION_2) ||
+               (ICPmsg->h.version == ICP_VERSION_3)) && (ICPmsg->h.opcode == ICP_OP_QUERY)) {
+
+            //
+            // Add the unknown Peer to our database to
+            // allow us to resolve the lookup request.
+            //
+            if (!_ICPpr->GetConfig()->Lock()) {
+              s->_next_state = ADD_PEER;
+              RECORD_ICP_STATE_CHANGE(s, 0, ADD_PEER);
+              return EVENT_CONT;
+            }
+            if (!_ICPpr->GetFreePeers() || !_ICPpr->GetFreeSendPeers()) {
+              Warning("ICP Peer limit exceeded");
+              REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP Peer limit exceeded");
+              _ICPpr->GetConfig()->Unlock();
+              goto invalid_message;
+            }
+
+            int icp_reply_port = cfg->ICPDefaultReplyPort();
+            if (!icp_reply_port) {
+              icp_reply_port = ntohs(ats_ip_port_cast(&s->_peer->fromaddr));
+            }
+            PeerConfigData *Pcfg = new PeerConfigData(PeerConfigData::CTYPE_SIBLING, IpAddr(s->_peer->fromaddr), 0,
+                                                      icp_reply_port);
+            ParentSiblingPeer *P = new ParentSiblingPeer(PEER_SIBLING, Pcfg, _ICPpr, true);
+            status = _ICPpr->AddPeer(P);
+            ink_release_assert(status);
+            status = _ICPpr->AddPeerToSendList(P);
+            ink_release_assert(status);
+
+	    P->GetChan()->setRemote(P->GetIP());
+
+            // coverity[uninit_use_in_call]
+            Note("ICP Peer added ip=%s", ats_ip_nptop(P->GetIP(), ipb, sizeof(ipb)));
+            from = s->_peer->fromaddr;
+          } else {
+          invalid_message:
+            //
+            // Sender does not exist in ICP configuration, terminate
+            //
+            ICP_INCREMENT_DYN_STAT(invalid_sender_stat);
+            Debug("icp", "Received msg from invalid sender [%s]",
+              ats_ip_nptop(&s->_peer->fromaddr, ipb, sizeof(ipb)));
+
+            s->_peer->buf = NULL;
+            s->_next_state = READ_NOT_ACTIVE;
+            RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+            break;              // move to next_state
+          }
+        }
+        // we hand off the decoded buffer from the Peer to the PeerReadData
+        s->_sender = from;
+        s->_rICPmsg_len = s->_bytesReceived;
+        ink_assert(s->_buf == NULL);
+        s->_buf = s->_peer->buf;
+        s->_rICPmsg = (ICPMsg_t *) s->_buf->start();
+        s->_peer->buf = NULL;
+
+        //
+        // Handle only ICP_VERSION_2/3 messages.  Reject all others.
+        //
+        if ((s->_rICPmsg->h.version != ICP_VERSION_2)
+            && (s->_rICPmsg->h.version != ICP_VERSION_3)) {
+          ICP_INCREMENT_DYN_STAT(read_not_v2_icp_stat);
+          Debug("icp", "Received (v=%d) !v2 && !v3 msg from sender [%s]",
+            (uint32_t) s->_rICPmsg->h.version, ats_ip_nptop(&from, ipb, sizeof(ipb)));
+
+          s->_rICPmsg = NULL;
+          s->_buf = NULL;
+          s->_next_state = READ_NOT_ACTIVE;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+          break;                // move to next_state
+        }
+        //
+        // If this is a query message, redirect to
+        // the query specific handlers.
+        //
+        if (s->_rICPmsg->h.opcode == ICP_OP_QUERY) {
+          ICP_INCREMENT_DYN_STAT(icp_remote_query_requests_stat);
+          ink_assert(!s->_mycont);
+          s->_next_state = AWAITING_CACHE_LOOKUP_RESPONSE;
+          RECORD_ICP_STATE_CHANGE(s, 0, AWAITING_CACHE_LOOKUP_RESPONSE);
+
+          if (ICPPeerQueryCont(0, (Event *) 0) == EVENT_DONE) {
+            break;              // Callback complete
+          } else {
+            return EVENT_DONE;  // Callback pending
+          }
+        } else {
+          // We have a response message for an ICP query.
+          Debug("icp", "Response for Id=%d, from [%s]",
+            s->_rICPmsg->h.requestno, ats_ip_nptop(&s->_sender, ipb, sizeof(ipb)));
+          ICP_INCREMENT_DYN_STAT(icp_remote_responses_stat);
+          s->_next_state = GET_ICP_REQUEST;
+          RECORD_ICP_STATE_CHANGE(s, 0, GET_ICP_REQUEST);
+          break;                // move to next_state
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case AWAITING_CACHE_LOOKUP_RESPONSE:
+      {
+        int status = 0;
+        void *data = s->_rICPmsg->un.query.URL;
+        int datalen = strlen((const char *) data) + 1;
+
+        if (s->_queryResult == CACHE_EVENT_LOOKUP) {
+          // Use the received ICP data buffer for the response message
+          Debug("icp", "Sending ICP_OP_HIT for id=%d, [%.*s] to [%s]",
+            s->_rICPmsg->h.requestno, datalen, (const char *)data, ats_ip_nptop(&s->_sender, ipb, sizeof(ipb)));
+          ICP_INCREMENT_DYN_STAT(icp_cache_lookup_success_stat);
+          status = ICPRequestCont::BuildICPMsg(ICP_OP_HIT,
+                                               s->_rICPmsg->h.requestno, 0 /* optflags */ , 0 /* optdata */ ,
+                                               0 /* shostid */ ,
+                                               data, datalen, &s->_mhdr, s->_iov, s->_rICPmsg);
+        } else if (s->_queryResult == CACHE_EVENT_LOOKUP_FAILED) {
+          // Use the received ICP data buffer for response message
+          Debug("icp", "Sending ICP_OP_MISS for id=%d, [%.*s] to [%s]",
+            s->_rICPmsg->h.requestno, datalen, (const char *)data, ats_ip_nptop(&s->_sender, ipb, sizeof(ipb)));
+          ICP_INCREMENT_DYN_STAT(icp_cache_lookup_fail_stat);
+          status = ICPRequestCont::BuildICPMsg(ICP_OP_MISS,
+                                               s->_rICPmsg->h.requestno, 0 /* optflags */ , 0 /* optdata */ ,
+                                               0 /* shostid */ ,
+                                               data, datalen, &s->_mhdr, s->_iov, s->_rICPmsg);
+        } else {
+          Warning("Bad cache lookup event: %d", s->_queryResult);
+          ink_release_assert(!"Invalid cache lookup event");
+        }
+        ink_assert(status == 0);
+
+        // Make system log entry for ICP query
+        ICPlog logentry(s);
+        LogAccessICP accessor(&logentry);
+        Log::access(&accessor);
+
+        s->_next_state = SEND_REPLY;
+        RECORD_ICP_STATE_CHANGE(s, 0, SEND_REPLY);
+
+        if (_recursion_depth > 0) {
+          return EVENT_DONE;
+        } else {
+          break;
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case SEND_REPLY:
+      {
+        ink_release_assert(_recursion_depth == 0);
+        //
+        // Send the query response back to the sender
+        //
+        s->_next_state = WRITE_DONE;
+        RECORD_ICP_STATE_CHANGE(s, 0, WRITE_DONE);
+        ink_assert(s->_peer->writeAction == NULL);
+        Action *a = s->_peer->SendMsg_re(this, this,
+                                         &s->_mhdr, &s->_sender.sa);
+        if (!a) {
+          a = ACTION_IO_ERROR;
+        }
+        if (a == ACTION_RESULT_DONE) {
+          // we have been called back already and our state updated
+          // appropriately
+          break;
+
+        } else if (a == ACTION_IO_ERROR) {
+          // Partial write.
+          ICP_INCREMENT_DYN_STAT(query_response_partial_write_stat);
+          // coverity[uninit_use_in_call]
+          Debug("icp_warn", "ICP response send, sent=%d res=%d, ip=%s",
+            ntohs(s->_rICPmsg->h.msglen), -1, ats_ip_ntop(&s->_sender, ipb, sizeof(ipb)));
+          s->_next_state = READ_NOT_ACTIVE;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+          break;
+        } else {
+          s->_peer->writeAction = a;
+          return EVENT_DONE;
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case WRITE_DONE:
+      {
+        s->_peer->writeAction = NULL;
+        int len = completionUtil::getBytesTransferred(e);
+
+        if (len == (int)ntohs(s->_rICPmsg->h.msglen)) {
+          ICP_INCREMENT_DYN_STAT(query_response_write_stat);
+          s->_peer->LogSendMsg(s->_rICPmsg, &s->_sender.sa);       // log query reply
+        } else {
+          // Partial write.
+          ICP_INCREMENT_DYN_STAT(query_response_partial_write_stat);
+          // coverity[uninit_use_in_call]
+          Debug("icp_warn", "ICP response send, sent=%d res=%d, ip=%s",
+            ntohs(s->_rICPmsg->h.msglen), len, ats_ip_ntop(&s->_sender, ipb, sizeof(ipb)));
+        }
+        // Processing complete, perform completion actions
+        s->_next_state = READ_NOT_ACTIVE;
+        RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+        Debug("icp", "state->READ_NOT_ACTIVE");
+
+        if (_recursion_depth > 0) {
+          return EVENT_DONE;
+        } else {
+          break;                // move to next_state
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case GET_ICP_REQUEST:
+      {
+        ink_release_assert(_recursion_depth == 0);
+        ink_assert(s->_rICPmsg && s->_rICPmsg_len);     // Sanity check
+
+        // Get ICP request associated with response message
+        s->_ICPReqCont = ICPRequestCont::FindICPRequest(s->_rICPmsg->h.requestno);
+        if (s->_ICPReqCont) {
+          s->_next_state = GET_ICP_REQUEST_MUTEX;
+          RECORD_ICP_STATE_CHANGE(s, 0, GET_ICP_REQUEST_MUTEX);
+          break;                // move to next_state
+        }
+        //
+        // No ICP request for response message, log as "response
+        // for non-existent ICP request" and terminate processing
+        //
+        Debug("icp", "No ICP Request for Id=%d", s->_rICPmsg->h.requestno);
+        ICP_INCREMENT_DYN_STAT(no_icp_request_for_response_stat);
+        Peer *p = _ICPpr->FindPeer(s->_sender);
+        p->LogRecvMsg(s->_rICPmsg, 0);
+        s->_next_state = READ_NOT_ACTIVE;
+        RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+        break;                  // move to next_state
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case GET_ICP_REQUEST_MUTEX:
+      {
+        ink_release_assert(_recursion_depth == 0);
+        ink_assert(s->_ICPReqCont);
+        Ptr<ProxyMutex> ICPReqContMutex(s->_ICPReqCont->mutex);
+        EThread *ethread = this_ethread();
+        ink_hrtime request_start_time;
+
+        if (!MUTEX_TAKE_TRY_LOCK(ICPReqContMutex, ethread)) {
+          ICP_INCREMENT_DYN_STAT(icp_response_request_nolock_stat);
+          //
+          // Unable to get ICP request mutex, delay and move back
+          // to the GET_ICP_REQUEST state.  We need to do this
+          // since the ICP request may be deallocated by the active
+          // continuation.
+          //
+          s->_ICPReqCont = (ICPRequestCont *) 0;
+          s->_next_state = GET_ICP_REQUEST;
+          RECORD_ICP_STATE_CHANGE(s, 0, GET_ICP_REQUEST);
+          return EVENT_CONT;
+        }
+        // Log as "response for ICP request"
+        Peer *p = _ICPpr->FindPeer(s->_sender);
+        p->LogRecvMsg(s->_rICPmsg, 1);
+
+        // Process the ICP response for the given ICP request
+        ICPRequestCont::ICPRequestEventArgs_t args;
+        args.rICPmsg = s->_rICPmsg;
+        args.rICPmsg_len = s->_rICPmsg_len;
+        args.peer = p;
+        if (!s->_ICPReqCont->GetActionPtr()->cancelled) {
+          request_start_time = s->_ICPReqCont->GetRequestStartTime();
+          Debug("icp", "Passing Reply for ICP Id=%d", s->_rICPmsg->h.requestno);
+          s->_ICPReqCont->handleEvent((int) ICP_RESPONSE_MESSAGE, (void *) &args);
+        } else {
+          request_start_time = 0;
+          delete s->_ICPReqCont;
+          Debug("icp", "User cancelled ICP request Id=%d", s->_rICPmsg->h.requestno);
+        }
+
+        // Note: s->_ICPReqCont is deallocated at this point.
+        s->_ICPReqCont = 0;
+
+        MUTEX_UNTAKE_LOCK(ICPReqContMutex, ethread);
+        if (request_start_time) {
+          ICP_SUM_DYN_STAT(total_icp_response_time_stat, (ink_get_hrtime() - request_start_time));
+        }
+        RECORD_ICP_STATE_CHANGE(s, 0, READ_NOT_ACTIVE);
+        s->_next_state = READ_NOT_ACTIVE;
+        break;                  // move to next_state
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case READ_NOT_ACTIVE:
+    case READ_NOT_ACTIVE_EXIT:
+      {
+        ink_release_assert(_recursion_depth == 0);
+        if (!_ICPpr->Lock())
+          return EVENT_CONT;    // unable to get lock, try again later
+
+        // Note incoming ICP request or response completion
+        _ICPpr->DecPendingQuery();
+        _ICPpr->Unlock();
+
+        s->_buf = 0;
+        if (s->_next_state == READ_NOT_ACTIVE_EXIT) {
+          s->_next_state = READ_PROCESSING_COMPLETE;
+          return EVENT_DONE;
+        } else {
+          // Last read was valid, see if any more read data before exiting
+          s->reset();
+          s->_start_time = ink_get_hrtime();
+          s->_next_state = READ_ACTIVE;
+          RECORD_ICP_STATE_CHANGE(s, 0, READ_ACTIVE);
+          break;                // restart
+        }
+      }
+      ink_release_assert(0);    // Should never happen
+
+    case READ_PROCESSING_COMPLETE:
+    default:
+      ink_release_assert(0);    // Should never happen
+
+    }                           // End of switch
+
+  }                             // End of while(1)
+}
+
+//------------------------------------------------------------------------
+// Class ICPRequestCont member functions
+//      Implements the state machine which processes locally generated
+//      ICP queries.
+//------------------------------------------------------------------------
+ClassAllocator<ICPRequestCont> ICPRequestCont_allocator("ICPRequestCont_allocator");
+
+ICPRequestCont::ICPRequestCont(ICPProcessor * pr, Continuation * c, URL * u)
+  : Continuation(0), _cont(c), _url(u), _start_time(0),
+    _ICPpr(pr), _timeout(0),
+    npending_actions(0), pendingActions(NULL),
+    _sequence_number(0), _expected_replies(0),
+    _expected_replies_list(MAX_DEFINED_PEERS), _received_replies(0), _next_state(ICP_START)
+{
+  memset((void *)&_ret_sockaddr, 0, sizeof(_ret_sockaddr));
+  _ret_status = ICP_LOOKUP_FAILED;
+  _act.cancelled = false;
+  _act = c;
+  memset((void *) &_ICPmsg, 0, sizeof(_ICPmsg));
+  memset((void *) &_sendMsgHdr, 0, sizeof(_sendMsgHdr));
+  memset((void *) &_sendMsgIOV, 0, sizeof(_sendMsgIOV[MSG_IOVECS]));
+
+  if (c)
+    this->mutex = c->mutex;
+}
+
+ICPRequestCont::~ICPRequestCont()
+{
+  _act = NULL;
+  this->mutex = NULL;
+
+  if (_timeout) {
+    _timeout->cancel(this);
+    _timeout = 0;
+  }
+  RemoveICPRequest(_sequence_number);
+
+  if (_ICPmsg.h.opcode == ICP_OP_QUERY) {
+    if (_ICPmsg.un.query.URL) {
+      ats_free(_ICPmsg.un.query.URL);
+    }
+  }
+  if (pendingActions) {
+    delete pendingActions;
+    pendingActions = 0;
+  }
+}
+
+void
+ICPRequestCont::remove_from_pendingActions(Action * a)
+{
+  if (!pendingActions) {
+    npending_actions--;
+    return;
+  }
+  for (intptr_t i = 0; i < pendingActions->length(); i++) {
+    if ((*pendingActions)[i] == a) {
+      for (intptr_t j = i; j < pendingActions->length() - 1; j++)
+        (*pendingActions)[j] = (*pendingActions)[j + 1];
+      pendingActions->set_length(pendingActions->length() - 1);
+      npending_actions--;
+      return;
+    }
+  }
+  npending_actions--;           // completed inline
+}
+
+void
+ICPRequestCont::remove_all_pendingActions()
+{
+  int active_pendingActions = 0;
+
+  if (!pendingActions) {
+    return;
+  }
+  for (intptr_t i = 0; i < pendingActions->length(); i++) {
+    if ((*pendingActions)[i]
+        && ((*pendingActions)[i] != ACTION_IO_ERROR)) {
+      ((*pendingActions)[i])->cancel();
+      (*pendingActions)[i] = 0;
+      npending_actions--;
+      active_pendingActions++;
+    } else {
+      (*pendingActions)[i] = 0;
+    }
+  }
+  pendingActions->set_length(pendingActions->length() - active_pendingActions);
+}
+
+int
+ICPRequestCont::ICPRequestEvent(int event, Event * e)
+{
+  // Note: Passed parameter 'e' is not an Event *
+  //       if event == ICP_RESPONSE_MESSAGE
+
+  ink_assert(event == NET_EVENT_DATAGRAM_WRITE_COMPLETE ||
+             event == NET_EVENT_DATAGRAM_WRITE_ERROR ||
+             event == EVENT_IMMEDIATE || event == EVENT_INTERVAL || event == ICP_RESPONSE_MESSAGE);
+  // handle reentrant callback
+  if ((event == NET_EVENT_DATAGRAM_WRITE_COMPLETE)
+      || (event == NET_EVENT_DATAGRAM_WRITE_ERROR)) {
+    ink_assert(npending_actions > 0);
+    remove_from_pendingActions((Action *) e);
+    return EVENT_DONE;
+  }
+  // Start of user ICP query request processing.  We start here after
+  // the reschedule in ICPProcessor::ICPQuery().
+  switch (_next_state) {
+  case ICP_START:
+  case ICP_OFF_TERMINATE:
+  case ICP_QUEUE_REQUEST:
+  case ICP_AWAITING_RESPONSE:
+  case ICP_DEQUEUE_REQUEST:
+  case ICP_POST_COMPLETION:
+  case ICP_REQUEST_NOT_ACTIVE:
+    {
+      if (ICPStateMachine(event, (void *) e) == EVENT_CONT) {
+        //
+        // Unable to acquire lock, reschedule continuation
+        //
+        eventProcessor.schedule_in(this, HRTIME_MSECONDS(RETRY_INTERVAL), ET_ICP);
+        return EVENT_CONT;
+
+      } else if (_next_state == ICP_DONE) {
+        //
+        // ICP request processing complete.
+        //
+        delete this;
+        break;
+      } else {
+        break;
+      }
+    }
+    ink_release_assert(0);      // should never happen
+
+  case ICP_DONE:
+  default:
+    ink_release_assert(0);      // should never happen
+  }                             // End of switch
+
+  return EVENT_DONE;
+}
+
+int
+ICPRequestCont::NopICPRequestEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  delete this;
+  return EVENT_DONE;
+}
+
+int
+ICPRequestCont::ICPStateMachine(int event, void *d)
+{
+  //*******************************************
+  // ICP message processing state machine
+  //*******************************************
+  ICPConfiguration *ICPcf = _ICPpr->GetConfig();
+  ip_port_text_buffer ipb;
+
+  while (1) {                   // loop forever
+
+    switch (_next_state) {
+    case ICP_START:
+      {
+        // User may have cancelled request, if so abort request.
+        if (_act.cancelled) {
+          _next_state = ICP_DONE;
+          return EVENT_DONE;
+        }
+
+        if (!_ICPpr->Lock())
+          return EVENT_CONT;    // Unable to get lock, try again later
+
+        if (_ICPpr->AllowICPQueries() && (ICPcf->globalConfig()->ICPconfigured() == ICP_MODE_SEND_RECEIVE)) {
+
+          // Reject NULL pointer or "localhost" URLs
+          if (_url->valid()) {
+            int host_len;
+            const char *host = _url->host_get(&host_len);
+            if (ptr_len_casecmp(host, host_len, "127.0.0.1") == 0 || ptr_len_casecmp(host, host_len, "localhost") == 0) {
+              _ICPpr->Unlock();
+
+              // NULL pointer or "localhost" URL, terminate request
+              _next_state = ICP_OFF_TERMINATE;
+              Debug("icp", "[ICP_START] NULL/localhost URL ignored Id=%d", _sequence_number);
+              break;            // move to next_state
+            }
+          }
+          // Note pending ICP request
+          _ICPpr->IncPendingQuery();
+          _ICPpr->Unlock();
+
+          // Build the ICP query message
+          char *urlstr = _url->string_get(NULL);
+          int urlstr_len = strlen(urlstr) + 1;
+
+          int status = BuildICPMsg(ICP_OP_QUERY,
+                                   _sequence_number = ICPReqSeqNumber(),
+                                   0 /* optflags */ , 0 /* optdata */ ,
+                                   0 /* shostid */ ,
+                                   (void *) urlstr, urlstr_len,
+                                   &_sendMsgHdr, _sendMsgIOV,
+                                   &_ICPmsg);
+          // urlstr memory freed in destructor
+          ink_assert(status == 0);
+          Debug("icp", "[ICP_START] ICP_OP_QUERY for [%s], Id=%d", urlstr, _sequence_number);
+
+          _next_state = ICP_QUEUE_REQUEST;
+          break;                // move to next_state
+
+        } else {
+          ICP_INCREMENT_DYN_STAT(icp_start_icpoff_stat);
+          _ICPpr->Unlock();
+
+          // ICP NOT enabled, terminate request
+          _next_state = ICP_OFF_TERMINATE;
+          break;                // move to next_state
+        }
+      }
+      ink_release_assert(0);    // should never happen
+
+    case ICP_OFF_TERMINATE:
+      {
+        if (!MUTEX_TAKE_TRY_LOCK_FOR(mutex, this_ethread(), _cont)) {
+          return EVENT_CONT;    // unable to get lock, delay and retry
+        }
+        Debug("icp", "[ICP_OFF_TERMINATE] Id=%d", _sequence_number);
+
+        // ICP NOT enabled, post completion on request
+        if (!_act.cancelled) {
+          _cont->handleEvent(_ret_status, (void *) &_ret_sockaddr);
+        }
+        MUTEX_UNTAKE_LOCK(mutex, this_ethread());
+
+        _next_state = ICP_DONE;
+        return EVENT_DONE;
+      }
+      ink_release_assert(0);    // should never happen
+
+    case ICP_QUEUE_REQUEST:
+      {
+        // Place ICP request on the pending request queue
+        int ret = AddICPRequest(_sequence_number, this);
+        ink_assert(ret == 0);
+
+        // Generate ICP requests to peers
+        int bias = _ICPpr->GetStartingSendPeerBias();
+        int SendPeers = _ICPpr->GetSendPeers();
+        npending_actions = 0;
+        while (SendPeers > 0) {
+          Peer *P = _ICPpr->GetNthSendPeer(SendPeers, bias);
+          if (!P->IsOnline()) {
+            SendPeers--;
+            continue;
+          }
+          //
+          // Send query request to Peers
+          //
+
+          // because of reentrancy, we have to do this first, just
+          // in case we get called back immediately.
+          int was_expected = P->ExpectedReplies(&_expected_replies_list);
+          _expected_replies += was_expected;
+          npending_actions++;
+          Action *a = P->SendMsg_re(this, P, &_sendMsgHdr, NULL);
+          if (!a) {
+            a = ACTION_IO_ERROR;
+          }
+          if (a != ACTION_IO_ERROR) {
+            if (a != ACTION_RESULT_DONE) {
+              if (!pendingActions) {
+                pendingActions = new DynArray<Action *>(&default_action);
+              }
+              (*pendingActions) (npending_actions) = a;
+            }
+            P->LogSendMsg(&_ICPmsg, NULL);  // log as send query
+            Debug("icp", "[ICP_QUEUE_REQUEST] Id=%d send query to [%s]",
+              _sequence_number, ats_ip_nptop(P->GetIP(), ipb, sizeof(ipb)));
+          } else {
+            _expected_replies_list.ClearBit(P->GetPeerID());
+            _expected_replies -= was_expected;
+            // Partial or failed write.
+            ICP_INCREMENT_DYN_STAT(send_query_partial_write_stat);
+            // coverity[uninit_use_in_call]
+            Debug("icp_warn",
+                  "ICP query send, res=%d, ip=%s", ntohs(_ICPmsg.h.msglen),
+              ats_ip_ntop(P->GetIP(), ipb, sizeof(ipb)));
+          }
+          SendPeers--;
+        }
+
+        Debug("icp", "[ICP_QUEUE_REQUEST] Id=%d expected replies=%d", _sequence_number, _expected_replies);
+        if (!_expected_replies) {
+          //
+          // Nothing to wait for, terminate ICP processing
+          //
+          ICP_INCREMENT_DYN_STAT(icp_queries_no_expected_replies_stat);
+          _next_state = ICP_DEQUEUE_REQUEST;
+          break;                // move to next_state
+        }
+        ICP_SUM_DYN_STAT(total_udp_send_queries_stat, _expected_replies);
+
+        //
+        // Setup ICP request response timeout
+        //
+        int tval = _ICPpr->GetConfig()->globalConfig()->ICPqueryTimeout();
+        _timeout = eventProcessor.schedule_in(this, HRTIME_SECONDS(tval), ET_ICP);
+
+        _next_state = ICP_AWAITING_RESPONSE;
+        return EVENT_DONE;
+      }
+      ink_release_assert(0);    // should never happen
+
+    case ICP_AWAITING_RESPONSE:
+      {
+        Debug("icp", "[ICP_AWAITING_RESPONSE] Id=%d", _sequence_number);
+        ink_assert(d);
+        ICPRequestEventArgs_t dummyArgs;
+        ICPRequestEventArgs_t *args = 0;
+
+        if (event == ICP_RESPONSE_MESSAGE) {
+          args = (ICPRequestEventArgs_t *) d;
+        } else if (event == EVENT_INTERVAL) {
+          memset((void *) &dummyArgs, 0, sizeof(dummyArgs));
+          args = &dummyArgs;
+        } else {
+          ink_release_assert(0);        // should never happen
+        }
+
+        // Process ICP response
+        if (ICPResponseMessage(event, args->rICPmsg, args->peer) == EVENT_DONE) {
+          // ICP Request processing is complete, do completion actions
+          _next_state = ICP_DEQUEUE_REQUEST;
+          break;                // move to next_state
+
+        } else {
+          // Continue to wait for additional replies
+          return EVENT_DONE;
+        }
+      }
+      ink_release_assert(0);    // should never happen
+
+    case ICP_DEQUEUE_REQUEST:
+      {
+        // Remove ICP request from active queue
+        int ret = RemoveICPRequest(_sequence_number);
+        Debug("icp", "[ICP_DEQUEUE_REQUEST] Id=%d", _sequence_number);
+        ink_assert(ret == 0);
+        //_sequence_number = 0; // moved to REQUEST_NOT_ACTIVE
+        _next_state = ICP_POST_COMPLETION;
+        break;                  // move to next_state
+      }
+      ink_release_assert(0);    // should never happen
+
+    case ICP_POST_COMPLETION:
+      {
+        if (!MUTEX_TAKE_TRY_LOCK_FOR(mutex, this_ethread(), _cont)) {
+          return EVENT_CONT;    // unable to get lock, delay and retry
+        }
+        Debug("icp", "[ICP_POST_COMPLETION] Id=%d", _sequence_number);
+
+        // Post completion on the ICP request.
+        if (!_act.cancelled) {
+          _cont->handleEvent(_ret_status, (void *) &_ret_sockaddr);
+        }
+        MUTEX_UNTAKE_LOCK(mutex, this_ethread());
+        ICP_SUM_DYN_STAT(total_icp_request_time_stat, (ink_get_hrtime() - _start_time));
+
+        _next_state = ICP_WAIT_SEND_COMPLETE;
+        break;                  // move to next_state
+      }
+      ink_release_assert(0);    // should never happen
+    case ICP_WAIT_SEND_COMPLETE:
+      {
+        // wait for all the sends to complete.
+        if (npending_actions > 0) {
+          Debug("icp", "[ICP_WAIT_SEND_COMPLETE] Id=%d active=%d", _sequence_number, npending_actions);
+        } else {
+          _next_state = ICP_REQUEST_NOT_ACTIVE;
+          // move to next state
+          break;
+        }
+      }
+      break;
+      ink_release_assert(0);    // should never happen
+    case ICP_REQUEST_NOT_ACTIVE:
+      {
+        Debug("icp", "[ICP_REQUEST_NOT_ACTIVE] Id=%d", _sequence_number);
+        _sequence_number = 0;
+        if (!_ICPpr->Lock())
+          return EVENT_CONT;    // Unable to get lock, try again later
+
+        // Note pending ICP request completion
+        _ICPpr->DecPendingQuery();
+        _ICPpr->Unlock();
+
+        _next_state = ICP_DONE;
+        return EVENT_DONE;
+      }
+      ink_release_assert(0);    // should never happen
+
+    case ICP_DONE:
+    default:
+      ink_release_assert(0);    // should never happen
+
+    }                           // End of switch
+
+  }                             // End of while(1)
+}
+
+int
+ICPRequestCont::ICPResponseMessage(int event, ICPMsg_t * m, Peer * peer)
+{
+  ip_port_text_buffer ipb, ipb2;
+
+  if (event == EVENT_INTERVAL) {
+    _timeout = 0;
+    remove_all_pendingActions();
+
+    // ICP request response timeout, if we received a response from
+    // any parent, return it to resolve the miss.
+
+    if (_received_replies) {
+      int NumParentPeers = _ICPpr->GetParentPeers();
+      if (NumParentPeers > 0) {
+        int n;
+        Peer *pp;
+        for (n = 0; n < NumParentPeers; n++) {
+          pp = _ICPpr->GetNthParentPeer(0, _ICPpr->GetStartingParentPeerBias());
+          if (pp && !_expected_replies_list.IsBitSet(pp->GetPeerID())
+              && pp->isUp()) {
+            ats_ip_copy(&_ret_sockaddr.sa, pp->GetIP());
+            _ret_sockaddr.port() = htons(static_cast<ParentSiblingPeer*>(pp)->GetProxyPort());
+            _ret_status = ICP_LOOKUP_FOUND;
+
+            Debug("icp",
+              "ICP timeout using parent Id=%d from [%s] return [%s]",
+              _sequence_number,
+              ats_ip_nptop(pp->GetIP(), ipb, sizeof(ipb)),
+              ats_ip_nptop(&_ret_sockaddr, ipb2, sizeof(ipb2))
+            );
+            return EVENT_DONE;
+          }
+        }
+      }
+    }
+    // Timeout received on ICP request, return ICP_LOOKUP_FAILED
+    Debug("icp", "ICP Response timeout for Id=%d", _sequence_number);
+    return EVENT_DONE;
+
+  } else {
+    // We have received a response to our ICP query request.
+    // See if this response resolves the ICP query.
+    //
+    ink_assert(m->h.requestno == _sequence_number);
+
+    switch (m->h.opcode) {
+    case ICP_OP_HIT:
+    case ICP_OP_HIT_OBJ:
+      {
+        // Kill timeout event
+        _timeout->cancel(this);
+        _timeout = 0;
+
+        ICP_INCREMENT_DYN_STAT(icp_query_hits_stat);
+        ++_received_replies;
+        ats_ip_copy(&_ret_sockaddr, peer->GetIP());
+        _ret_sockaddr.port() =  htons(static_cast<ParentSiblingPeer*>(peer)->GetProxyPort());
+        _ret_status = ICP_LOOKUP_FOUND;
+
+        Debug("icp",
+          "ICP Response HIT for Id=%d from [%s] return [%s]",
+          _sequence_number,
+          ats_ip_nptop(peer->GetIP(), ipb, sizeof(ipb)),
+          ats_ip_nptop(&_ret_sockaddr, ipb2, sizeof(ipb2))
+        );
+        return EVENT_DONE;
+      }
+    case ICP_OP_MISS:
+    case ICP_OP_ERR:
+    case ICP_OP_MISS_NOFETCH:
+    case ICP_OP_DENIED:
+      {
+        Debug("icp", "ICP MISS response for Id=%d from [%s]",
+          _sequence_number, ats_ip_nptop(peer->GetIP(), ipb, sizeof(ipb)));
+        // "received_replies" is only for Peers who we expect a reply
+        //  from (Peers which are in the expected_replies_list).
+        int Id = peer->GetPeerID();
+        if (_expected_replies_list.IsBitSet(Id)) {
+          // Clear bit to note receipt of reply
+          _expected_replies_list.ClearBit(Id);
+          ++_received_replies;
+        }
+
+        if (_received_replies < _expected_replies)
+          return EVENT_CONT;    // wait for more responses
+
+        // Kill timeout event
+        _timeout->cancel(this);
+        _timeout = 0;
+
+        ICP_INCREMENT_DYN_STAT(icp_query_misses_stat);
+        //
+        // All responders have returned ICP_OP_MISS.
+        // If parents exists, select one to resolve the request.
+        //
+        if (_ICPpr->GetParentPeers() > 0) {
+          // In cases where multiple parents exist, we use
+          // a round robin scheme.
+          Peer *p = NULL;
+          // try to find an UP parent, if none, return ICP_LOOKUP_FAILED
+          {
+            int i;
+            for (i = 0; i < _ICPpr->GetParentPeers(); i++) {
+              p = _ICPpr->GetNthParentPeer(0, _ICPpr->GetStartingParentPeerBias());
+              // find an UP parent
+              if (p->isUp())
+                break;
+            }
+            // if no parent is selected, then return ICP_LOOKUP_FAILED
+            if (i >= _ICPpr->GetParentPeers()) {
+              Debug("icp", "None of the %d ICP parent(s) is up", _ICPpr->GetParentPeers());
+              p = NULL;
+            }
+          }
+          if (p) {
+            ats_ip_copy(&_ret_sockaddr, p->GetIP());
+            _ret_sockaddr.port() = htons(static_cast<ParentSiblingPeer*>(p)->GetProxyPort());
+            _ret_status = ICP_LOOKUP_FOUND;
+
+            Debug("icp", "ICP ALL MISS(1) for Id=%d return [%s]",
+              _sequence_number, ats_ip_nptop(&_ret_sockaddr, ipb, sizeof(ipb)));
+            return EVENT_DONE;
+          }
+        }
+        Debug("icp", "ICP ALL MISS(2) for Id=%d return [%s]",
+          _sequence_number, ats_ip_nptop(&_ret_sockaddr, ipb, sizeof(ipb)));
+        return EVENT_DONE;
+      }
+    default:
+      {
+        ICP_INCREMENT_DYN_STAT(invalid_icp_query_response_stat);
+        // coverity[uninit_use_in_call]
+        Warning("Invalid ICP response, op=%d reqno=%d ip=%s",
+          m->h.opcode, m->h.requestno, ats_ip_ntop(peer->GetIP(), ipb, sizeof(ipb)));
+        return EVENT_CONT;      // wait for more responses
+      }
+
+    }                           // End of switch
+  }
+}
+
+//------------------------------------------------
+// Class ICPRequestCont static member functions
+//------------------------------------------------
+
+// Static member function
+void
+ICPRequestCont::NetToHostICPMsg(ICPMsg_t * in, ICPMsg_t * out)
+{
+  out->h.opcode = in->h.opcode;
+  out->h.version = in->h.version;
+  out->h.msglen = ntohs(in->h.msglen);
+  out->h.requestno = ntohl(in->h.requestno);
+  out->h.optionflags = ntohl(in->h.optionflags);
+  out->h.optiondata = ntohl(in->h.optiondata);
+  out->h.shostid = ntohl(in->h.shostid);
+
+  switch (in->h.opcode) {
+  case ICP_OP_QUERY:
+    {
+      memcpy((char *) &out->un.query.rhostid,
+             (char *) ((char *) (&in->h.shostid) + sizeof(in->h.shostid)), sizeof(out->un.query.rhostid));
+      out->un.query.rhostid = ntohl(out->un.query.rhostid);
+      out->un.query.URL = (char *) ((char *) (&in->h.shostid) + sizeof(in->h.shostid) + sizeof(out->un.query.rhostid));
+      break;
+    }
+  case ICP_OP_HIT:
+    {
+      out->un.hit.URL = (char *)((char *) (&in->h.shostid) + sizeof(in->h.shostid));
+      break;
+    }
+  case ICP_OP_MISS:
+    {
+      out->un.miss.URL = (char *)((char *) (&in->h.shostid) + sizeof(in->h.shostid));
+      break;
+    }
+  case ICP_OP_HIT_OBJ:
+    {
+      out->un.hitobj.URL = (char *)((char *) (&in->h.shostid) + sizeof(in->h.shostid));
+
+      // strlen() is bounded since buffer in null terminated.
+      out->un.hitobj.p_objsize = (char *) (out->un.hitobj.URL + strlen(out->un.hitobj.URL));
+      memcpy((char *) &out->un.hitobj.objsize, out->un.hitobj.p_objsize, sizeof(out->un.hitobj.objsize));
+      out->un.hitobj.objsize = ntohs(out->un.hitobj.objsize);
+      out->un.hitobj.data = (char *) (out->un.hitobj.p_objsize + sizeof(out->un.hitobj.objsize));
+      break;
+    }
+  default:
+    break;
+  }
+}
+
+int
+ICPRequestCont::BuildICPMsg(ICPopcode_t op, unsigned int seqno,
+                            int optflags, int optdata, int shostid,
+                            void *data, int datalen, struct msghdr *mhdr, struct iovec *iov, ICPMsg_t * icpmsg)
+{
+  // Build ICP message for transmission in network byte order.
+  if (op == ICP_OP_QUERY) {
+    icpmsg->un.query.rhostid = htonl(0);
+    icpmsg->un.query.URL = (char *) data;
+
+    mhdr->msg_iov = iov;
+    mhdr->msg_iovlen = 3;
+
+    iov[0].iov_base = (caddr_t) icpmsg;
+    iov[0].iov_len = sizeof(ICPMsgHdr_t);
+
+    iov[1].iov_base = (caddr_t) & icpmsg->un.query.rhostid;
+    iov[1].iov_len = sizeof(icpmsg->un.query.rhostid);
+
+    iov[2].iov_base = (caddr_t) data;
+    iov[2].iov_len = datalen;
+    icpmsg->h.msglen = htons(iov[0].iov_len + iov[1].iov_len + iov[2].iov_len);
+
+  } else if (op == ICP_OP_HIT) {
+    icpmsg->un.hit.URL = (char *) data;
+
+    mhdr->msg_iov = iov;
+    mhdr->msg_iovlen = 2;
+
+    iov[0].iov_base = (caddr_t) icpmsg;
+    iov[0].iov_len = sizeof(ICPMsgHdr_t);
+
+    iov[1].iov_base = (caddr_t) data;
+    iov[1].iov_len = datalen;
+    icpmsg->h.msglen = htons(iov[0].iov_len + iov[1].iov_len);
+
+  } else if (op == ICP_OP_MISS) {
+    icpmsg->un.miss.URL = (char *) data;
+
+    mhdr->msg_iov = iov;
+    mhdr->msg_iovlen = 2;
+
+    iov[0].iov_base = (caddr_t) icpmsg;
+    iov[0].iov_len = sizeof(ICPMsgHdr_t);
+
+    iov[1].iov_base = (caddr_t) data;
+    iov[1].iov_len = datalen;
+    icpmsg->h.msglen = htons(iov[0].iov_len + iov[1].iov_len);
+
+  } else {
+    ink_release_assert(0);
+    return 1;                   // failed
+  }
+
+  mhdr->msg_name = (caddr_t) 0;
+  mhdr->msg_namelen = 0;
+  // TODO: The following is just awkward
+#if !defined(linux) && !defined(freebsd) && !defined(darwin) && !defined(solaris) \
+ && !defined(openbsd)
+  mhdr->msg_accrights = (caddr_t) 0;
+  mhdr->msg_accrightslen = 0;
+#elif !defined(solaris)
+  mhdr->msg_control = 0;
+  mhdr->msg_controllen = 0;
+  mhdr->msg_flags = 0;
+#endif
+
+  icpmsg->h.opcode = op;
+  icpmsg->h.version = ICP_VERSION_2;
+  icpmsg->h.requestno = htonl(seqno);
+  icpmsg->h.optionflags = htonl(optflags);
+  icpmsg->h.optiondata = htonl(optdata);
+  icpmsg->h.shostid = htonl(shostid);
+
+  return 0;                     // Success
+}
+
+// Static ICPRequestCont data declarations
+unsigned int
+  ICPRequestCont::ICPRequestSeqno = 1;
+Queue<ICPRequestCont> ICPRequestQueue[ICPRequestCont::ICP_REQUEST_HASH_SIZE];
+
+// Static member function
+unsigned int
+ICPRequestCont::ICPReqSeqNumber()
+{
+  // Generate ICP request sequence numbers.  This must be unique.
+  unsigned int res = 0;
+  do {
+    res = (unsigned int) ink_atomic_increment((int *) &ICPRequestSeqno, 1);
+  } while (!res);
+
+  return res;
+}
+
+// Static member function
+inline int
+ICPRequestCont::ICPRequestHash(unsigned int seqno)
+{
+  // ICPRequestQueue hash
+  return seqno % ICP_REQUEST_HASH_SIZE;
+}
+
+// Static member function
+int
+ICPRequestCont::AddICPRequest(unsigned int seqno, ICPRequestCont * r)
+{
+  // Add ICP request to ICP outstanding queue (ICPRequestQueue).
+  // return: 0 - success
+
+  ICPRequestQueue[ICPRequestHash(seqno)].enqueue(r);
+  return 0;                     // Success
+}
+
+// Static member function
+ICPRequestCont *
+ICPRequestCont::FindICPRequest(unsigned int seqno)
+{
+  // Find ICP request on outstanding queue with the given sequence number
+  int hash = ICPRequestHash(seqno);
+  ICPRequestCont *r;
+
+  for (r = (ICPRequestCont *) ICPRequestQueue[hash].head; r; r = (ICPRequestCont *) r->link.next) {
+    if (r->_sequence_number == seqno)
+      return r;
+  }
+  return (ICPRequestCont *) 0;  // Not found
+}
+
+// Static member function
+int
+ICPRequestCont::RemoveICPRequest(unsigned int seqno)
+{
+  // Remove ICP request from outstanding queue with the given
+  //  sequence number
+  // Return: 0 - success; 1 - not found
+
+  if (!seqno) {
+    return 1;                   // Not found
+  }
+  int hash = ICPRequestHash(seqno);
+  ICPRequestCont *r;
+
+  for (r = (ICPRequestCont *) ICPRequestQueue[hash].head; r; r = (ICPRequestCont *) r->link.next) {
+    if (r->_sequence_number == seqno) {
+      ICPRequestQueue[hash].remove(r);
+      return 0;
+    }
+  }
+  return 1;                     // Not found
+}
+
+//------------------------------------------------------------------------
+// Class ICPProcessor member functions
+//      Central class which initializes the ICP world.
+//      Delegates incoming message processing to ICPHandlerCont
+//      and outgoing message processing to ICPRequestCont.
+//      Manages the ICP configuration database derived from TS
+//      configuration info.
+//------------------------------------------------------------------------
+
+// Static data declarations for ICPProcessor
+void
+initialize_thread_for_icp(EThread * e)
+{
+  (void) e;
+}
+
+ICPProcessor icpProcessorInternal;
+ICPProcessorExt icpProcessor(&icpProcessorInternal);
+
+ICPProcessor::ICPProcessor()
+ : _l(0), _Initialized(0), _AllowIcpQueries(0),
+   _PendingIcpQueries(0), _ICPConfig(0), _ICPPeriodic(0), _ICPHandler(0),
+   _mcastCB_handler(NULL), _PeriodicEvent(0), _ICPHandlerEvent(0),
+   _nPeerList(-1), _LocalPeer(0),
+   _curSendPeer(0), _nSendPeerList(-1),
+   _curRecvPeer(0), _nRecvPeerList(-1), _curParentPeer(0), _nParentPeerList(-1), _ValidPollData(0), _last_recv_peer_bias(0)
+{
+  memset((void *)_PeerList, 0, sizeof(_PeerList[PEER_LIST_SIZE]));
+  memset((void *)_SendPeerList, 0, sizeof(_SendPeerList[SEND_PEER_LIST_SIZE]));
+  memset((void *)_RecvPeerList, 0, sizeof(_RecvPeerList[RECV_PEER_LIST_SIZE]));
+  memset((void *)_ParentPeerList, 0, sizeof(_ParentPeerList[PARENT_PEER_LIST_SIZE]));
+  memset((void *)_PeerIDtoPollIndex, 0, sizeof(_PeerIDtoPollIndex[PEER_ID_POLL_INDEX_SIZE]));
+}
+
+ICPProcessor::~ICPProcessor()
+{
+  if (_ICPPeriodic) {
+    MUTEX_TAKE_LOCK(_ICPPeriodic->mutex, this_ethread());
+    _PeriodicEvent->cancel();
+    Mutex_unlock(_ICPPeriodic->mutex, this_ethread());
+  }
+
+  if (_ICPHandler) {
+    MUTEX_TAKE_LOCK(_ICPHandler->mutex, this_ethread());
+    _ICPHandlerEvent->cancel();
+    Mutex_unlock(_ICPHandler->mutex, this_ethread());
+  }
+}
+
+void
+ICPProcessor::start()
+{
+  //*****************************************************
+  // Perform initialization actions for ICPProcessor
+  // (called at system startup)
+  //*****************************************************
+  if (_Initialized)             // Do only once
+    return;
+
+  //
+  // Setup ICPProcessor lock, required since ICPProcessor is instantiated
+  //  as static object.
+  //
+  _l = new AtomicLock();
+
+  //
+  // Setup custom allocators
+  //
+  // replaced with generic IOBufferBlock allocator
+  ICPHandlerCont::ICPDataBuf_IOBuffer_sizeindex = iobuffer_size_to_index(MAX_ICP_MSGSIZE, MAX_BUFFER_SIZE_INDEX);
+
+  //
+  // Setup ICP stats callbacks
+  //
+  InitICPStatCallbacks();
+
+  //
+  // Create ICP configuration objects
+  //
+  _ICPConfig = new ICPConfiguration();
+
+  _mcastCB_handler = new ICPHandlerCont(this);
+  SET_CONTINUATION_HANDLER(_mcastCB_handler, (ICPHandlerContHandler) & ICPHandlerCont::TossEvent);
+
+
+  //
+  // Build ICP peer list and setup listen sockets
+  //
+  if (_ICPConfig->globalConfig()->ICPconfigured()) {
+    if (BuildPeerList() == 0) {
+      if (SetupListenSockets() == 0) {
+        _AllowIcpQueries = 1;   // allow receipt of queries
+      }
+    }
+  }
+  DumpICPConfig();
+
+  //
+  // Start ICP configuration monitor (periodic continuation)
+  //
+  _ICPPeriodic = new ICPPeriodicCont(this);
+  SET_CONTINUATION_HANDLER(_ICPPeriodic, (ICPPeriodicContHandler) & ICPPeriodicCont::PeriodicEvent);
+  _PeriodicEvent = eventProcessor.schedule_every(_ICPPeriodic, HRTIME_MSECONDS(ICPPeriodicCont::PERIODIC_INTERVAL), ET_ICP);
+
+  //
+  // Start ICP receive handler continuation
+  //
+  _ICPHandler = new ICPHandlerCont(this);
+  SET_CONTINUATION_HANDLER(_ICPHandler, (ICPHandlerContHandler) & ICPHandlerCont::PeriodicEvent);
+  _ICPHandlerEvent = eventProcessor.schedule_every(_ICPHandler,
+                                                   HRTIME_MSECONDS(ICPHandlerCont::ICP_HANDLER_INTERVAL), ET_ICP);
+  //
+  // Stale lookup data initializations
+  //
+  if (!gclient_request.valid()) {
+    gclient_request.create(HTTP_TYPE_REQUEST);
+  }
+  _Initialized = 1;
+}
+
+Action *
+ICPProcessor::ICPQuery(Continuation * c, URL * url)
+{
+  //**************************************
+  // HTTP state machine interface to ICP
+  //**************************************
+
+  // Build continuation to process ICP request
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+  ICPRequestCont *rc = new(ICPRequestCont_allocator.alloc()) ICPRequestCont(this, c, url);
+
+  ICP_INCREMENT_DYN_STAT(icp_query_requests_stat);
+  
+  rc->SetRequestStartTime();
+  SET_CONTINUATION_HANDLER(rc, (ICPRequestContHandler) & ICPRequestCont::ICPRequestEvent);
+  eventProcessor.schedule_imm(rc, ET_ICP);
+
+  return rc->GetActionPtr();
+}
+
+int
+ICPProcessor::BuildPeerList()
+{
+  // Returns 0 on Success
+
+  //
+  //---------------------------------------------------------------------
+  //  We always place all allocated Peer elements onto PeerList[],
+  //  which is used to track allocated elements and validate (ip, port)
+  //  uniqueness in the ICP configuration.
+  //
+  //  All MultiCastPeer(s) link the underlying ParentSiblingPeer structures
+  //  using a singly linked list off the MultiCastPeer.
+  //
+  //  Peer elements placed onto SendPeerList[] are elements which are
+  //  the target of ICP queries.
+  //  In the case where MultiCasting is used, a pseudo peer element
+  //  (MultiCastPeer) is placed onto the SendPeerList[] to act as a place
+  //  holder for the underlying Peers.
+  //
+  //  RecvPeerList[] is the list of Peer(s) we perform reads on for
+  //  ICP messages.  In the case of MultiCast, the pseudo MultiCast peer
+  //  element (MultiCastPeer) is placed on this list.  Since we currently
+  //  funnel all unicast receives through the local peer UDP socket,
+  //  only the local peer and any pseudo MultiCastPeer structures reside
+  //  on this list.
+  //
+  //  Parent (PEER_PARENT) Peer elements are also added to ParentPeerList
+  //  which is used to select a parent in the case where all ICP queries
+  //  have returned ICP_MISS.
+  //---------------------------------------------------------------------
+  //
+  PeerConfigData *Pcfg;
+  Peer *P;
+  Peer *mcP;
+  int index;
+  int status;
+  PeerType_t type;
+
+  //
+  // From the working copy of the ICP configuration data, build the
+  // internal Peer data structures for ICP processing.
+  // First, establish the Local Peer descriptor before processing
+  // parents and siblings.
+  //
+  Pcfg = _ICPConfig->indexToPeerConfigData(0);
+  ink_strlcpy(Pcfg->_hostname, "localhost", sizeof(Pcfg->_hostname));
+  Pcfg->_ctype = PeerConfigData::CTYPE_LOCAL;
+
+  // Get IP address for given interface
+  IpEndpoint tmp_ip;
+  if (!mgmt_getAddrForIntr(GetConfig()->globalConfig()->ICPinterface(), &tmp_ip.sa)) {
+    Pcfg->_ip_addr._family = AF_UNSPEC;
+    // No IP address for given interface
+    Warning("ICP interface [%s] has no IP address", GetConfig()->globalConfig()->ICPinterface());
+    REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP interface has no IP address");
+  } else {
+    Pcfg->_my_ip_addr = Pcfg->_ip_addr = tmp_ip;
+  }
+  Pcfg->_proxy_port = 0;
+  Pcfg->_icp_port = GetConfig()->globalConfig()->ICPport();
+  Pcfg->_mc_member = 0;
+  Pcfg->_mc_ip_addr._family = AF_UNSPEC;
+  Pcfg->_mc_ttl = 0;
+
+  //***************************************************
+  // Descriptor for local host, add to PeerList and
+  // RecvPeerList
+  //***************************************************
+  P = new ParentSiblingPeer(PEER_LOCAL, Pcfg, this);
+  status = AddPeer(P);
+  ink_release_assert(status);
+  status = AddPeerToRecvList(P);
+  ink_release_assert(status);
+  _LocalPeer = P;
+
+  for (index = 1; index < MAX_DEFINED_PEERS; ++index) {
+    Pcfg = _ICPConfig->indexToPeerConfigData(index);
+    type = PeerConfigData::CTypeToPeerType_t(Pcfg->GetCType());
+    //
+    // Ignore parent and sibling entries corresponding to "localhost".
+    // This is possible in a cluster configuration where parents and
+    // siblings are cluster members.  Note that in a cluster
+    // configuration, "icp.config" is shared by all nodes.
+    //
+    if (Pcfg->GetIPAddr() == _LocalPeer->GetIP())
+      continue;                 // ignore
+
+    if ((type == PEER_PARENT) || (type == PEER_SIBLING)) {
+
+      if (Pcfg->MultiCastMember()) {
+        mcP = FindPeer(Pcfg->GetMultiCastIPAddr(), Pcfg->GetICPPort());
+        if (!mcP) {
+          //*********************************
+          // Create multicast peer structure
+          //*********************************
+          mcP = new MultiCastPeer(Pcfg->GetMultiCastIPAddr(), Pcfg->GetICPPort(), Pcfg->GetMultiCastTTL(), this);
+          status = AddPeer(mcP);
+          ink_assert(status);
+          status = AddPeerToSendList(mcP);
+          ink_assert(status);
+          status = AddPeerToRecvList(mcP);
+          ink_assert(status);
+        }
+        //*****************************
+        // Add child to MultiCast peer
+        //*****************************
+        P = new ParentSiblingPeer(type, Pcfg, this);
+        status = AddPeer(P);
+        ink_assert(status);
+        status = ((MultiCastPeer *) mcP)->AddMultiCastChild(P);
+        ink_assert(status);
+
+      } else {
+        //*****************************
+        // Add parent/sibling peer
+        //*****************************
+        P = new ParentSiblingPeer(type, Pcfg, this);
+        status = AddPeer(P);
+        ink_assert(status);
+        status = AddPeerToSendList(P);
+        ink_assert(status);
+      }
+      //****************************************
+      // Also, add parent peers to parent list.
+      //****************************************
+      if (type == PEER_PARENT) {
+        status = AddPeerToParentList(P);
+        ink_assert(status);
+      }
+    }
+  }
+  return 0;                     // Success
+}
+
+void
+ICPProcessor::FreePeerList()
+{
+  // Deallocate all Peer structures
+  int index;
+  for (index = 0; index < (_nPeerList + 1); ++index) {
+    if (_PeerList[index]) {
+      _PeerList[index] = 0;
+    }
+  }
+  // Reset all control data
+  _nPeerList = -1;
+  _LocalPeer = (Peer *) 0;
+  _curSendPeer = 0;
+  _nSendPeerList = -1;
+  _curRecvPeer = 0;
+  _nRecvPeerList = -1;
+  _curParentPeer = 0;
+  _nParentPeerList = -1;
+  _ValidPollData = 0;
+  _last_recv_peer_bias = 0;
+
+  for (index = 0; index < PEER_LIST_SIZE; index++) {
+    _PeerList[index] = 0;
+  }
+  for (index = 0; index < SEND_PEER_LIST_SIZE; index++) {
+    _SendPeerList[index] = 0;
+  }
+  for (index = 0; index < RECV_PEER_LIST_SIZE; index++) {
+    _RecvPeerList[index] = 0;
+  }
+  for (index = 0; index < PARENT_PEER_LIST_SIZE; index++) {
+    _ParentPeerList[index] = 0;
+  }
+  memset((void *) _PeerIDtoPollIndex, 0, sizeof(_PeerIDtoPollIndex[PEER_ID_POLL_INDEX_SIZE]));
+}
+
+int
+ICPProcessor::SetupListenSockets()
+{
+  int allow_null_configuration;
+
+  if ((_ICPConfig->globalConfig()->ICPconfigured() == ICP_MODE_RECEIVE_ONLY)
+      && _ICPConfig->globalConfig()->ICPReplyToUnknownPeer()) {
+    allow_null_configuration = 1;
+  } else {
+    allow_null_configuration = 0;
+  }
+
+  // Returns 0 on Success.
+
+  //
+  // Perform some basic sanity checks on the ICP configuration.
+  //
+  if (!_LocalPeer) {
+    Warning("ICP setup, no defined local Peer");
+    REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP setup, no defined local Peer");
+    return 1;                   // Failed
+  }
+
+  if (GetSendPeers() == 0) {
+    if (!allow_null_configuration) {
+      Warning("ICP setup, no defined send Peer(s)");
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP setup, no defined send Peer(s)");
+      return 1;                 // Failed
+    }
+  }
+  if (GetRecvPeers() == 0) {
+    if (!allow_null_configuration) {
+      Warning("ICP setup, no defined receive Peer(s)");
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP setup, no defined receive Peer(s)");
+      return 1;                 // Failed
+    }
+  }
+  //
+  // Establish the required sockets for elements on the PeerList[].
+  //
+  Peer *P;
+  int status;
+  int index;
+  ip_port_text_buffer ipb, ipb2;
+  for (index = 0; index < (_nPeerList + 1); ++index) {
+
+    if ((P = _PeerList[index])) {
+
+      if ((P->GetType() == PEER_PARENT)
+          || (P->GetType() == PEER_SIBLING)) {
+        ParentSiblingPeer *pPS = (ParentSiblingPeer *) P;
+
+        pPS->GetChan()->setRemote(pPS->GetIP());
+
+      } else if (P->GetType() == PEER_MULTICAST) {
+        MultiCastPeer *pMC = (MultiCastPeer *) P;
+        ink_assert(_mcastCB_handler != NULL);
+        status = pMC->GetSendChan()->setup_mc_send(pMC->GetIP(), _LocalPeer->GetIP(), NON_BLOCKING, pMC->GetTTL(), DISABLE_MC_LOOPBACK, _mcastCB_handler);
+        if (status) {
+          // coverity[uninit_use_in_call]
+          Warning("ICP MC send setup failed, res=%d, ip=%s bind_ip=%s",
+            status,
+            ats_ip_nptop(pMC->GetIP(), ipb, sizeof(ipb)),
+            ats_ip_nptop(_LocalPeer->GetIP(), ipb2, sizeof(ipb2))
+          );
+          REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP MC send setup failed");
+          return 1;             // Failed
+        }
+
+        status = pMC->GetRecvChan()->setup_mc_receive(pMC->GetIP(),
+                                                      _LocalPeer->GetIP(),
+                                                      NON_BLOCKING, pMC->GetSendChan(), _mcastCB_handler);
+        if (status) {
+          // coverity[uninit_use_in_call]
+          Warning("ICP MC recv setup failed, res=%d, ip=%s",
+            status, ats_ip_nptop(pMC->GetIP(), ipb, sizeof(ipb)));
+          REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP MC recv setup failed");
+          return 1;             // Failed
+        }
+      }
+    }
+  }
+  //
+  // Setup the socket for the local host.
+  // We funnel all unicast sends and receives through
+  // the local peer UDP socket.
+  //
+  ParentSiblingPeer *pPS = (ParentSiblingPeer *) ((Peer *) _LocalPeer);
+
+  NetVCOptions options;
+  options.local_ip.assign(pPS->GetIP());
+  options.local_port = pPS->GetICPPort();
+  options.ip_proto = NetVCOptions::USE_UDP;
+  options.addr_binding = NetVCOptions::INTF_ADDR;
+  status = pPS->GetChan()->open(options);
+  if (status) {
+    // coverity[uninit_use_in_call] ?
+    Warning("ICP bind_connect failed, res=%d, ip=%s",
+      status,
+      ats_ip_nptop(pPS->GetIP(), ipb, sizeof(ipb))
+    );
+    REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "ICP bind_connect for localhost failed");
+    return 1;             // Failed
+  }
+
+  return 0;                     // Success
+}
+
+void
+ICPProcessor::ShutdownListenSockets()
+{
+  //
+  // Close all open sockets for elements on the PeerList[]
+  //
+  ink_assert(!PendingQuery());
+  Peer *P;
+
+  int index;
+  for (index = 0; index < (_nPeerList + 1); ++index) {
+    if ((P = _PeerList[index])) {
+      if (P->GetType() == PEER_LOCAL) {
+        ParentSiblingPeer *pPS = (ParentSiblingPeer *) P;
+        (void) pPS->GetChan()->close();
+
+      } else if (P->GetType() == PEER_MULTICAST) {
+        MultiCastPeer *pMC = (MultiCastPeer *) P;
+        (void) pMC->GetSendChan()->close();
+        (void) pMC->GetRecvChan()->close();
+      }
+    }
+  }
+}
+
+int
+ICPProcessor::Reconfigure(int /* global_config_changed ATS_UNUSED */, int /* peer_config_changed ATS_UNUSED */)
+{
+  // Returns 0 on Success
+  //
+  // At this point, ICP requests processing is disabled and
+  // no pending ICP requests exist.
+  //
+  ink_assert(_ICPConfig->HaveLock());
+  ink_assert(!AllowICPQueries());
+  ink_assert(!PendingQuery());
+  //
+  // Shutdown and deallocate all structures associated with the
+  // current configuration.
+  //
+  ShutdownListenSockets();
+  FreePeerList();
+  //
+  // Copy the new configuration into the working copy and
+  // rebuild all associated structures.
+  //
+  _ICPConfig->UpdateGlobalConfig();
+  _ICPConfig->UpdatePeerConfig();
+
+  int status = -1;
+  if (_ICPConfig->globalConfig()->ICPconfigured()) {
+    if ((status = BuildPeerList()) == 0) {
+      status = SetupListenSockets();
+    }
+    DumpICPConfig();
+  }
+  return status;
+}
+
+ICPProcessor::ReconfigState_t
+  ICPProcessor::ReconfigureStateMachine(ReconfigState_t s, int gconfig_changed, int pconfig_changed)
+{
+  //*****************************************************************
+  // State machine which performs the ICP reconfiguration actions.
+  // Defined states are as follows:
+  //  1) (RC_RECONFIG) disable ICP, reconfigure if no request pending,
+  //     else delay and retry.  Reconfigure and if success move to
+  //     RC_ENABLE_ICP else RC_DONE.
+  //  2) (RC_ENABLE_ICP) enable ICP, free ICP configuration lock.
+  //  3) (RC_DONE) free ICP configuration lock.
+  //*****************************************************************
+  ink_assert(_ICPConfig->HaveLock());
+  int reconfig_status;
+
+  while (1) {
+
+    switch (s) {
+    case RC_RECONFIG:
+      {
+        if (!Lock())
+          return RC_RECONFIG;   // Unable to get lock, try again
+
+        if (PendingQuery()) {
+          DisableICPQueries();  // disable ICP processing
+          Unlock();
+          CancelPendingReads();
+          return RC_RECONFIG;   // Pending requests, delay and retry
+
+        } else {
+          DisableICPQueries();  // disable ICP processing
+          Unlock();
+          // No pending ICP queries, perform reconfiguration
+          reconfig_status = Reconfigure(gconfig_changed, pconfig_changed);
+
+          if (reconfig_status == 0) {
+            s = RC_ENABLE_ICP;  // reconfig OK, enable ICP
+          } else {
+            s = RC_DONE;        // reconfig failed, do not enable ICP
+          }
+          break;                // move to next state
+        }
+      }
+
+    case RC_ENABLE_ICP:
+      {
+        if (!Lock())
+          return RC_ENABLE_ICP; // Unable to get lock, try again
+
+        EnableICPQueries();     // Enable ICP processing
+        Unlock();
+
+        s = RC_DONE;
+        break;                  // move to next state
+      }
+
+    case RC_DONE:
+      {
+        // Release configuration lock
+        _ICPConfig->Unlock();
+        return RC_DONE;         // Reconfiguration complete
+      }
+    default:
+      {
+        ink_release_assert(0);  // Should never happen
+      }
+
+    }                           // End of switch
+
+  }                             // End of while
+  return RC_DONE;
+}
+
+void
+ICPProcessor::CancelPendingReads()
+{
+  // Cancel pending ICP read by sending a bogus message to
+  //  the local ICP port.
+
+  ICPRequestCont *r = new(ICPRequestCont_allocator.alloc())
+    ICPRequestCont(this, NULL, NULL);
+  SET_CONTINUATION_HANDLER(r, (ICPRequestContHandler) & ICPRequestCont::NopICPRequestEvent);
+  r->mutex = new_ProxyMutex();
+
+  // TODO: Check return value?
+  ICPRequestCont::BuildICPMsg(ICP_OP_HIT, 0, 0 /* optflags */ , 0 /* optdata */ , 0 /* shostid */ ,
+                                       (void *) 0, 0, &r->_sendMsgHdr, r->_sendMsgIOV, &r->_ICPmsg);
+  r->_sendMsgHdr.msg_iovlen = 1;
+  r->_ICPmsg.h.version = ~r->_ICPmsg.h.version; // bogus message
+
+  Peer *lp = GetLocalPeer();
+  r->_sendMsgHdr.msg_name = (caddr_t) & (lp->GetSendChan())->addr;
+  r->_sendMsgHdr.msg_namelen = sizeof((lp->GetSendChan())->addr);
+  udpNet.sendmsg_re(r, r, lp->GetSendFD(), &r->_sendMsgHdr);
+}
+
+Peer *
+ICPProcessor::GenericFindListPeer(IpAddr const& ip, uint16_t port, int validListItems, Ptr<Peer> *List)
+{
+  Peer *P;
+  port = htons(port);
+  for (int n = 0; n < validListItems; ++n) {
+    if ((P = List[n])) {
+      if ((P->GetIP() == ip)
+        && ((port == 0) || (ats_ip_port_cast(P->GetIP()) == port)))
+        return P;
+    }
+  }
+  return NULL;
+}
+
+Peer *
+ICPProcessor::FindPeer(IpAddr const& ip, uint16_t port)
+{
+  // Find (Peer *) with the given (ip,port) on the global list (PeerList)
+  return GenericFindListPeer(ip, port, (_nPeerList + 1), _PeerList);
+}
+
+Peer *
+ICPProcessor::FindSendListPeer(IpAddr const& ip, uint16_t port)
+{
+  // Find (Peer *) with the given (ip,port) on the
+  //  scheduler list (SendPeerList)
+  return GenericFindListPeer(ip, port, (_nSendPeerList + 1), _SendPeerList);
+}
+
+Peer *
+ICPProcessor::FindRecvListPeer(IpAddr const& ip, uint16_t port)
+{
+  // Find (Peer *) with the given (ip,port) on the
+  //  receive list (RecvPeerList)
+  return GenericFindListPeer(ip, port, (_nRecvPeerList + 1), _RecvPeerList);
+}
+
+int
+ICPProcessor::AddPeer(Peer * P)
+{
+  // Add (Peer *) to the global list (PeerList).  Make sure (ip,port) is
+  //  unique.
+  // Returns 1 - added; 0 - Not added
+
+  //
+  // Make sure no duplicate exists
+  //
+  if (FindPeer(P->GetIP())) {
+    ip_port_text_buffer x;
+    // coverity[uninit_use_in_call]
+    Warning("bad icp.config, multiple peer definitions for ip=%s", ats_ip_nptop(P->GetIP(), x, sizeof(x)));
+    REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "bad icp.config, multiple peer definitions");
+
+    return 0;                   // Not added
+  } else {
+    // Valid entry
+    if (_nPeerList + 1 < PEER_LIST_SIZE) {
+      _nPeerList++;
+      _PeerList[_nPeerList] = P;
+      P->SetPeerID(_nPeerList);
+      return 1;                 // Added
+    } else {
+      return 0;                 // Not added
+    }
+  }
+}
+
+int
+ICPProcessor::AddPeerToRecvList(Peer * P)
+{
+  // Add (Peer *) to the listen list (RecvPeerList).
+  //  Make sure (ip,port) is unique.
+  // Returns 1 - added; 0 - Not added
+
+  // Assert that no duplicate exists
+  ink_assert(FindRecvListPeer(IpAddr(P->GetIP()), ats_ip_port_host_order(P->GetIP())) == 0);
+
+  if (_nRecvPeerList + 1 < RECV_PEER_LIST_SIZE) {
+    _nRecvPeerList++;
+    _RecvPeerList[_nRecvPeerList] = P;
+    return 1;                   // Added
+  } else {
+    return 0;                   // Not added
+  }
+}
+
+int
+ICPProcessor::AddPeerToSendList(Peer * P)
+{
+  // Add (Peer *) to the scheduler list (SendPeerList).
+  //  Make sure (ip,port) is unique.
+  // Returns 1 - added; 0 - Not added
+
+  // Assert that no duplicate exists
+  ink_assert(FindSendListPeer(IpAddr(P->GetIP()), ats_ip_port_host_order(P->GetIP())) == 0);
+
+  if (_nSendPeerList + 1 < SEND_PEER_LIST_SIZE) {
+    _nSendPeerList++;
+    _SendPeerList[_nSendPeerList] = P;
+    return 1;                   // Added
+  } else {
+    return 0;                   // Not added
+  }
+}
+
+int
+ICPProcessor::AddPeerToParentList(Peer * P)
+{
+  // Add (Peer *) to the parent list (ParentPeerList).
+  // Returns 1 - added; 0 - Not added
+
+  if (_nParentPeerList + 1 < PARENT_PEER_LIST_SIZE) {
+    _nParentPeerList++;
+    _ParentPeerList[_nParentPeerList] = P;
+    return 1;                   // Added
+  } else {
+    return 0;                   // Not added
+  }
+}
+
+// End of ICP.cc
diff --git a/proxy/ICP.h b/proxy/ICP.h
new file mode 100644
index 00000000..5ccf7b4b
--- /dev/null
+++ b/proxy/ICP.h
@@ -0,0 +1,1308 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ICP.h
+
+
+****************************************************************************/
+
+#ifndef _ICP_H_
+#define _ICP_H_
+
+#include "P_Net.h"
+#include "P_Cache.h"
+#define  ET_ICP ET_CALL
+#include "URL.h"
+#include "ICPevents.h"
+#include "ICPProcessor.h"
+#include "DynArray.h"
+
+
+//*********************************************************************
+// ICP Configurables
+//*********************************************************************
+#define ICP_DEBUG	1
+
+
+//*********************************************************************
+// ICP.h -- Internet Cache Protocol (ICP) related data structures.
+//
+// Message protocol definitions as defined by RFC 2186
+// "Internet Cache Protocol (ICP), version 2".
+//*********************************************************************
+typedef struct ICPMsgHeader
+{
+  uint8_t opcode;
+  uint8_t version;
+  uint16_t msglen;
+  uint32_t requestno;
+  uint32_t optionflags;
+  uint32_t optiondata;
+  uint32_t shostid;
+} ICPMsgHdr_t;
+
+//-----------------------
+// opcode definitions
+//-----------------------
+typedef enum
+{
+  ICP_OP_INVALID,               // 00
+  ICP_OP_QUERY,                 // 01
+  ICP_OP_HIT,                   // 02
+  ICP_OP_MISS,                  // 03
+  ICP_OP_ERR,                   // 04
+  //
+  ICP_OP_UNUSED5,               // 05 unused
+  ICP_OP_UNUSED6,               // 06 unused
+  ICP_OP_UNUSED7,               // 07 unused
+  ICP_OP_UNUSED8,               // 08 unused
+  ICP_OP_UNUSED9,               // 09 unused
+  //
+  ICP_OP_SECHO,                 // 10
+  ICP_OP_DECHO,                 // 11
+  //
+  ICP_OP_UNUSED12,              // 12 unused
+  ICP_OP_UNUSED13,              // 13 unused
+  ICP_OP_UNUSED14,              // 14 unused
+  ICP_OP_UNUSED15,              // 15 unused
+  ICP_OP_UNUSED16,              // 16 unused
+  ICP_OP_UNUSED17,              // 17 unused
+  ICP_OP_UNUSED18,              // 18 unused
+  ICP_OP_UNUSED19,              // 19 unused
+  ICP_OP_UNUSED20,              // 20 unused
+  //
+  ICP_OP_MISS_NOFETCH,          // 21
+  ICP_OP_DENIED,                // 22
+  ICP_OP_HIT_OBJ,               // 23
+  ICP_OP_END_OF_OPS             // 24 mark end of opcodes
+} ICPopcode_t;
+
+#define ICP_OP_LAST		(ICP_OP_END_OF_OPS - 1)
+
+//-----------------------
+// version definitions
+//-----------------------
+#define ICP_VERSION_1		1
+#define ICP_VERSION_2		2
+#define ICP_VERSION_3		3
+#define ICP_VERSION		ICP_VERSION_2
+
+//--------------------------
+// optionflags definitions
+//--------------------------
+#define ICP_FLAG_HIT_OBJ 	0x80000000ul
+#define ICP_FLAG_SRC_RTT 	0x40000000ul
+
+//-----------------
+// ICP Constants
+//-----------------
+#define MAX_ICP_MSGSIZE		   (16 * 1024)
+#define MAX_ICP_MSG_PAYLOAD_SIZE   (MAX_ICP_MSGSIZE - sizeof(ICPmsgHdr_t))
+#define MAX_ICP_QUERY_PAYLOAD_SIZE (MAX_ICP_MSG_PAYLOAD_SIZE - sizeof(uint32_t))
+#define MAX_DEFINED_PEERS	   64
+#define MSG_IOVECS 16
+
+//------------
+// ICP Data
+//------------
+typedef struct ICPData
+{
+  char *URL;                    // null terminated
+} ICPData_t;
+
+//-------------
+// ICP Query
+//-------------
+typedef struct ICPQuery
+{
+  uint32_t rhostid;
+  char *URL;                    // null terminated (outgoing)
+} ICPQuery_t;
+
+//------------
+// ICP Hit
+//------------
+typedef struct ICPHit
+{
+  char *URL;                    // null terminated
+} ICPHit_t;
+
+//------------
+// ICP Miss
+//------------
+typedef struct ICPMiss
+{
+  char *URL;                    // null terminated
+} ICPMiss_t;
+
+//------------------
+// ICP Hit Object
+//------------------
+typedef struct ICPHitObj
+{
+  char *URL;                    // null terminated
+  char *p_objsize;              // byte aligned uint16_t immediately follows URL null
+  uint16_t objsize;               // decoded object size
+  char *data;                   // object data
+} ICPHitObj_t;
+
+//------------------------
+// ICP message descriptor
+//------------------------
+typedef struct ICPMsg
+{
+  ICPMsgHdr_t h;
+  union
+  {
+    ICPData_t data;
+    ICPQuery_t query;
+    ICPHit_t hit;
+    ICPMiss_t miss;
+    ICPHitObj_t hitobj;
+  } un;
+} ICPMsg_t;
+
+//******************************************************************
+// ICP implementation specific data structures.
+//******************************************************************
+
+class BitMap;
+class ICPProcessor;
+class ICPPeriodicCont;
+class ICPHandlerCont;
+class ICPPeerReadCont;
+class ICPRequestCont;
+
+typedef enum
+{
+  PEER_NONE = 0,
+  PEER_PARENT = 1,
+  PEER_SIBLING = 2,
+  PEER_LOCAL = 3,
+  PEER_MULTICAST = 4
+} PeerType_t;
+
+#if !defined(USE_CAS_FOR_ATOMICLOCK)
+class AtomicLock
+{
+public:
+  AtomicLock();
+  ~AtomicLock();
+  int Lock();
+  int HaveLock();
+  void Unlock();
+
+private:
+    Ptr<ProxyMutex> _mutex;
+};
+
+#else // USE_CAS_FOR_ATOMICLOCK
+class AtomicLock
+{
+public:
+  AtomicLock();
+  ~AtomicLock();
+  int Lock();
+  int HaveLock();
+  void Unlock();
+
+private:
+  enum
+  { UNLOCKED = 0, LOCKED = 1 };
+  int32_t _lock_word;
+};
+#endif // USE_CAS_FOR_ATOMICLOCK
+
+//-----------------------------------------------------------------
+// Class ICPConfigData -- deal with global ICP configuration data
+//-----------------------------------------------------------------
+class ICPConfigData
+{
+  friend class ICPConfiguration;
+
+public:
+    ICPConfigData():_icp_enabled(0), _icp_port(0), _icp_interface(0),
+    _multicast_enabled(0), _icp_query_timeout(0), _cache_lookup_local(0),
+    _stale_lookup(0), _reply_to_unknown_peer(0), _default_reply_port(0)
+  {
+  }
+   ~ICPConfigData()
+  {
+  }                             // Note: _icp_interface freed prior to delete
+  inline int operator==(ICPConfigData &);
+  inline int ICPconfigured()
+  {
+    return _icp_enabled;
+  }
+  inline int ICPport()
+  {
+    return _icp_port;
+  }
+  inline char *ICPinterface()
+  {
+    return _icp_interface;
+  }
+  inline int ICPmulticastConfigured()
+  {
+    return _multicast_enabled;
+  }
+  inline int ICPqueryTimeout()
+  {
+    return _icp_query_timeout;
+  }
+  inline int ICPLocalCacheLookup()
+  {
+    return _cache_lookup_local;
+  }
+  inline int ICPStaleLookup()
+  {
+    return _stale_lookup;
+  }
+  inline int ICPReplyToUnknownPeer()
+  {
+    return _reply_to_unknown_peer;
+  }
+  inline int ICPDefaultReplyPort()
+  {
+    return _default_reply_port;
+  }
+
+private:
+  //---------------------------------------------------------
+  // ICP Configuration data derived from "records.config"
+  //---------------------------------------------------------
+  int _icp_enabled;             // see ICP_MODE_XXX defines
+  int _icp_port;
+  char *_icp_interface;
+  int _multicast_enabled;
+  int _icp_query_timeout;
+  int _cache_lookup_local;
+  int _stale_lookup;
+  int _reply_to_unknown_peer;
+  int _default_reply_port;
+};
+
+//----------------------------------------------------------------
+// Class PeerConfigData -- deal with peer ICP configuration data
+//----------------------------------------------------------------
+class PeerConfigData
+{
+  friend class ICPConfiguration;
+  friend class ICPProcessor;
+
+public:
+    PeerConfigData();
+    PeerConfigData(int ctype, IpAddr const& ip_addr, int proxy_port, int icp_port)
+      : _ctype(ctype), _ip_addr(ip_addr),
+      _proxy_port(proxy_port), _icp_port(icp_port), _mc_member(0), _mc_ttl(0),
+      _my_ip_addr(ip_addr)
+  {
+    _hostname[0] = 0;
+  }
+   ~PeerConfigData()
+  {
+  }
+  bool operator==(PeerConfigData &);
+  inline const char *GetHostname()
+  {
+    return _hostname;
+  }
+  inline int GetCType()
+  {
+    return _ctype;
+  }
+  inline IpAddr const& GetIPAddr()
+  {
+    return _my_ip_addr;
+  }
+  inline int GetProxyPort()
+  {
+    return _proxy_port;
+  }
+  inline int GetICPPort()
+  {
+    return _icp_port;
+  }
+  inline int MultiCastMember()
+  {
+    return _mc_member;
+  }
+  inline IpAddr const& GetMultiCastIPAddr()
+  {
+    return _mc_ip_addr;
+  }
+  inline int GetMultiCastTTL()
+  {
+    return _mc_ttl;
+  }
+
+  // Static member functions
+  static PeerType_t CTypeToPeerType_t(int);
+  static int GetHostIPByName(char *, IpAddr&);
+
+  enum
+  { HOSTNAME_SIZE = 256 };
+  enum
+  { CTYPE_NONE = 0,
+    CTYPE_PARENT = 1,
+    CTYPE_SIBLING = 2,
+    CTYPE_LOCAL = 3
+  };
+
+private:
+  //---------------------------------------------------------
+  // Peer Configuration data derived from "icp.config"
+  //---------------------------------------------------------
+  char _hostname[HOSTNAME_SIZE];
+  int _ctype;
+  IpAddr _ip_addr;
+  int _proxy_port;
+  int _icp_port;
+  //-------------------
+  // MultiCast data
+  //-------------------
+  int _mc_member;
+  IpAddr _mc_ip_addr;
+  int _mc_ttl;
+
+  //----------------------------------------------
+  // Computed data not subject to "==" test
+  //----------------------------------------------
+  IpAddr _my_ip_addr;
+};
+
+//---------------------------------------------------------------
+// Class ICPConfigUpdateCont -- Continuation which retries
+//  icp_config_change_callback(). Continuation started
+//  due to manager config callout or failure to acquire lock.
+//---------------------------------------------------------------
+class ICPConfigUpdateCont:public Continuation
+{
+public:
+  ICPConfigUpdateCont(void *data, void *value);
+   ~ICPConfigUpdateCont()
+  {
+  }
+  int RetryICPconfigUpdate(int, Event *);
+
+  enum
+  { RETRY_INTERVAL = 10 };
+
+private:
+  void *_data;
+  void *_value;
+};
+
+//------------------------------------------------------------------
+// Class ICPConfiguration -- Overall management of ICP Config data
+//------------------------------------------------------------------
+class ICPConfiguration
+{
+public:
+  ICPConfiguration();
+  ~ICPConfiguration();
+  int GlobalConfigChange();
+  void UpdateGlobalConfig();
+  int PeerConfigChange();
+  void UpdatePeerConfig();
+
+  inline ICPConfigData *globalConfig()
+  {
+    return _icp_cdata;
+  }
+  inline PeerConfigData *indexToPeerConfigData(int index)
+  {
+    ink_assert(index <= MAX_DEFINED_PEERS);
+    // TODO coverity warning should be addressed with model for ink_assert
+    // coverity[overrun-local]
+    return _peer_cdata[index];
+  }
+
+  // TS configuration management callout for "icp.config".
+  static int mgr_icp_config_change_callback(const char *, RecDataT, RecData, void *);
+
+  // ICP configuration callout for ET_ICP
+  static void *icp_config_change_callback(void *, void *, int startup = 0);
+
+  inline int Lock()
+  {
+    return _l.Lock();
+  }
+  inline void Unlock()
+  {
+    _l.Unlock();
+    return;
+  }
+  inline int HaveLock()
+  {
+    return _l.HaveLock();
+  }
+
+  inline int ICPConfigCallouts()
+  {
+    return _icp_config_callouts;
+  }
+
+private:
+  // Class data declarations
+  AtomicLock _l;
+  int _icp_config_callouts;
+
+  // All ICP operation is based on "icp_data" and "peer_cdata".
+  // The "icp_data_current" and "peer_cdata_current" reflect the
+  // current state of the configuration.  "icp_data_current" is
+  // updated via configuration callouts.  "peer_cdata_current"
+  // is updated by the periodic ICP processor event (ICPPeriodicCont),
+  // when configuration management signals us with a callout on "icp.config".
+  // We merge current to working only after disabling ICP operation and
+  // waiting for pending requests to complete.
+  //
+  ICPConfigData *_icp_cdata;
+  ICPConfigData *_icp_cdata_current;
+  PeerConfigData *_peer_cdata[MAX_DEFINED_PEERS + 1];
+  PeerConfigData *_peer_cdata_current[MAX_DEFINED_PEERS + 1];
+};
+
+//------------------------------------------------------------------------
+// Class Peer -- Internal structure representing ICP peers derived from
+//               configuration data (abstract base class).
+//------------------------------------------------------------------------
+
+// Peer state
+#define PEER_UP			   (1 << 0)
+#define PEER_MULTICAST_COUNT_EVENT (1 << 1)     // Member probe event active
+#define PEER_DYNAMIC 		   (1 << 2)     // Dynamically added, not in config
+
+struct CacheVConnection;
+
+class Peer:public RefCountObj
+{
+public:
+  Peer(PeerType_t, ICPProcessor *, bool dynamic_peer = false);
+  virtual ~ Peer()
+  {
+  }
+  void LogRecvMsg(ICPMsg_t *, int);
+
+  // Pure virtual functions
+  virtual sockaddr* GetIP() = 0;
+  virtual Action *SendMsg_re(Continuation *, void *, struct msghdr *, struct sockaddr const* to) = 0;
+  virtual Action *RecvFrom_re(Continuation *, void *, IOBufferBlock *, int, struct sockaddr *, socklen_t *) = 0;
+  virtual int GetRecvFD() = 0;
+  virtual int GetSendFD() = 0;
+  virtual int ExpectedReplies(BitMap *) = 0;
+  virtual int ValidSender(sockaddr *) = 0;
+  virtual void LogSendMsg(ICPMsg_t *, sockaddr const*) = 0;
+  virtual int IsOnline() = 0;
+  virtual Connection *GetSendChan() = 0;
+  virtual Connection *GetRecvChan() = 0;
+  virtual int ExtToIntRecvSockAddr(sockaddr const*, sockaddr *) = 0;
+
+  enum
+  { OFFLINE_THRESHOLD = 20 };
+
+  inline PeerType_t GetType()
+  {
+    return _type;
+  }
+  inline int GetPeerID()
+  {
+    return _id;
+  }
+  inline void SetPeerID(int newid)
+  {
+    _id = newid;
+  }
+  inline void SetNext(Peer * p)
+  {
+    _next = p;
+  }
+  inline Peer *GetNext()
+  {
+    return _next;
+  }
+  inline bool shouldStartRead()
+  {
+    return !notFirstRead;
+  }
+  inline void startingRead()
+  {
+    notFirstRead = 1;
+  }
+  inline void cancelRead()
+  {
+    notFirstRead = 0;
+  }
+  inline bool readActive()
+  {
+    return (readAction != NULL);
+  }
+  inline bool isUp()
+  {
+    return (_state & PEER_UP);
+  }
+
+  // these shouldn't be public
+  // this is for delayed I/O
+  Ptr<IOBufferBlock> buf;
+  IpEndpoint fromaddr;
+  socklen_t fromaddrlen;
+  int notFirstRead;             // priming the reads
+  Action *readAction;           // outstanding read
+  Action *writeAction;          // outstanding write
+
+protected:
+  PeerType_t _type;
+  int _id;                      // handle for this peer
+  Peer *_next;
+  ICPProcessor *_ICPpr;
+
+  //--------------
+  // State data
+  //--------------
+  int _state;
+
+  //-------------------
+  // Peer Statistics
+  //-------------------
+  struct PeerStats
+  {
+    ink_hrtime last_send;
+    ink_hrtime last_receive;
+    int sent[ICP_OP_LAST + 1];
+    int recv[ICP_OP_LAST + 1];
+    int total_sent;
+    int total_received;
+    int dropped_replies;        // arrived after timeout
+  } _stats;
+};
+
+//------------------------------------------------
+// Class ParentSiblingPeer (derived from Peer)
+//------------------------------------------------
+class ParentSiblingPeer:public Peer
+{
+public:
+  ParentSiblingPeer(PeerType_t, PeerConfigData *, ICPProcessor *, bool dynamic_peer = false);
+  ~ParentSiblingPeer()
+  {
+    if (_pconfig && (_state & PEER_DYNAMIC))
+      delete _pconfig;
+  }
+  int GetProxyPort();
+  int GetICPPort();
+  virtual sockaddr* GetIP();
+  virtual Action *SendMsg_re(Continuation *, void *, struct msghdr *, struct sockaddr const* to);
+  virtual Action *RecvFrom_re(Continuation *, void *, IOBufferBlock *, int, struct sockaddr *, socklen_t *);
+  virtual int GetRecvFD();
+  virtual int GetSendFD();
+  virtual int ExpectedReplies(BitMap *);
+  virtual int ValidSender(struct sockaddr*);
+  virtual void LogSendMsg(ICPMsg_t *, sockaddr const*);
+  virtual int ExtToIntRecvSockAddr(sockaddr const* in, sockaddr* out);
+  inline virtual int IsOnline()
+  {
+    return 1;
+  }
+  inline virtual Connection *GetSendChan()
+  {
+    return &_chan;
+  }
+  inline virtual Connection *GetRecvChan()
+  {
+    return &_chan;
+  }
+  inline PeerConfigData *GetConfig()
+  {
+    return _pconfig;
+  }
+  inline Connection *GetChan()
+  {
+    return &_chan;
+  }
+
+private:
+  // Class data declarations
+  PeerConfigData * _pconfig;    // associated config data
+  IpEndpoint _ip; ///< Cache for GetIP().
+  Connection _chan;
+};
+
+//------------------------------------------------
+// Class MultiCastPeer (derived from Peer)
+//------------------------------------------------
+class MultiCastPeer:public Peer
+{
+public:
+  MultiCastPeer(IpAddr const&, uint16_t, int, ICPProcessor *);
+  ~MultiCastPeer()
+  {
+  }
+  int GetTTL();
+  int AddMultiCastChild(Peer * P);
+  /** Find the multicast child peer with IP address @a ip on @a port.
+      If @a port is 0 the port is not checked.
+  */
+  Peer *FindMultiCastChild(
+    IpAddr const& ip, ///< IP address.
+    uint16_t port = 0 ///< Port (host order).
+  );
+
+  virtual sockaddr* GetIP();
+  virtual Action *SendMsg_re(Continuation *, void *, struct msghdr *, struct sockaddr const* to);
+  virtual Action *RecvFrom_re(Continuation *, void *, IOBufferBlock *, int, struct sockaddr *, socklen_t *);
+  virtual int GetRecvFD();
+  virtual int GetSendFD();
+  virtual int ExpectedReplies(BitMap *);
+  virtual int ValidSender(struct sockaddr*);
+  virtual void LogSendMsg(ICPMsg_t *, sockaddr const*);
+  virtual int IsOnline();
+  inline virtual Connection *GetRecvChan()
+  {
+    return &_recv_chan;
+  }
+  inline virtual Connection *GetSendChan()
+  {
+    return &_send_chan;
+  }
+  inline virtual int ExtToIntRecvSockAddr(sockaddr const* in, sockaddr* out)
+  {
+    Peer *P = FindMultiCastChild(IpAddr(in));
+    if (P) {
+      ats_ip_copy(out, in);
+      ats_ip_port_cast(out) = ats_ip_port_cast(P->GetIP());
+      return 1;
+    } else {
+      return 0;
+    }
+  }
+
+private:
+  // Class data declarations
+  Connection _send_chan;
+  Connection _recv_chan;
+  //---------------------------
+  // Multicast specific data
+  //---------------------------
+  IpEndpoint _mc_ip;
+  int _mc_ttl;
+  struct multicast_data
+  {
+    double avg_members;         // running avg of multicast responders
+    int defined_members;        // as specified in icp.config
+    int n_count_events;         // responder count events
+    int count_event_reqno;      // reqno associated with count event
+    int expected_replies;       // current expected responders on multicast
+  } _mc;
+};
+
+//----------------------------------------------------
+// Class BitMap -- Generic bit map management class
+//----------------------------------------------------
+class BitMap
+{
+public:
+  BitMap(int);
+   ~BitMap();
+  void SetBit(int);
+  void ClearBit(int);
+  int IsBitSet(int);
+
+private:
+  enum
+  { STATIC_BITMAP_BYTE_SIZE = 16,
+    BITS_PER_BYTE = 8
+  };
+  char _static_bitmap[STATIC_BITMAP_BYTE_SIZE];
+  char *_bitmap;
+  int _bitmap_size;
+  int _bitmap_byte_size;
+};
+
+//----------------------------------------
+// ICPProcessor -- ICP External interface
+//----------------------------------------
+class ICPProcessor
+{
+  friend class ICPHandlerCont;  // Incoming msg periodic handler
+  friend class ICPPeerReadCont; // Incoming ICP request handler
+  friend class ICPRequestCont;  // Outgoing ICP request handler
+
+public:
+    ICPProcessor();
+   ~ICPProcessor();
+
+  // Exported interfaces for other subsystems
+  void start();
+  Action *ICPQuery(Continuation *, URL *);
+
+  // Exported interfaces to other ICP classes
+  typedef enum
+  {
+    RC_RECONFIG,
+    RC_ENABLE_ICP,
+    RC_DONE
+  } ReconfigState_t;
+  ReconfigState_t ReconfigureStateMachine(ReconfigState_t, int, int);
+
+  Peer *FindPeer(IpAddr const& ip, uint16_t port = 0);
+  Peer *FindPeer(IpEndpoint const& ip) {
+    return this->FindPeer(IpAddr(&ip), ats_ip_port_host_order(&ip));
+  }
+  Peer *FindPeer(sockaddr const* ip) {
+    return this->FindPeer(IpAddr(ip), ats_ip_port_host_order(ip));
+  }
+
+  inline Peer *GetLocalPeer()
+  {
+    return _LocalPeer;
+  }
+  inline Peer *IdToPeer(int id)
+  {
+    return _PeerList[id];
+  }
+  inline ICPConfiguration *GetConfig()
+  {
+    return _ICPConfig;
+  }
+
+  inline int GetFreePeers()
+  {
+    return PEER_LIST_SIZE - (_nPeerList + 1);
+  }
+  inline int GetFreeSendPeers()
+  {
+    return SEND_PEER_LIST_SIZE - (_nSendPeerList + 1);
+  }
+  inline int GetFreeRecvPeers()
+  {
+    return RECV_PEER_LIST_SIZE - (_nRecvPeerList + 1);
+  }
+
+private:
+  inline int Lock()
+  {
+    return _l->Lock();
+  }
+  inline void Unlock()
+  {
+    _l->Unlock();
+    return;
+  }
+  inline int HaveLock()
+  {
+    return _l->HaveLock();
+  }
+  int BuildPeerList();
+  void FreePeerList();
+  int SetupListenSockets();
+  void ShutdownListenSockets();
+  int Reconfigure(int, int);
+  void InitICPStatCallbacks();
+
+  inline void DisableICPQueries()
+  {
+    _AllowIcpQueries = 0;
+  }
+  inline void EnableICPQueries()
+  {
+    _AllowIcpQueries = 1;
+  }
+  inline int AllowICPQueries()
+  {
+    return _AllowIcpQueries;
+  }
+  inline int PendingQuery()
+  {
+    return _PendingIcpQueries;
+  }
+  inline void IncPendingQuery()
+  {
+    _PendingIcpQueries++;
+  }
+  inline void DecPendingQuery()
+  {
+    _PendingIcpQueries--;
+  }
+
+  Peer *GenericFindListPeer(IpAddr const&, uint16_t, int, Ptr<Peer> *);
+  Peer *FindSendListPeer(IpAddr const&, uint16_t);
+  Peer *FindRecvListPeer(IpAddr const&, uint16_t);
+  int AddPeer(Peer *);
+  int AddPeerToSendList(Peer *);
+  int AddPeerToRecvList(Peer *);
+  int AddPeerToParentList(Peer *);
+
+  inline int GetSendPeers()
+  {
+    return _nSendPeerList + 1;
+  }
+  inline Peer *GetNthSendPeer(int n, int bias)
+  {
+    return _SendPeerList[(bias + n) % (_nSendPeerList + 1)];
+  }
+
+  inline int GetRecvPeers()
+  {
+    return _nRecvPeerList + 1;
+  }
+  inline Peer *GetNthRecvPeer(int n, int bias)
+  {
+    return _RecvPeerList[(bias + n) % (_nRecvPeerList + 1)];
+  }
+
+  inline int GetStartingSendPeerBias()
+  {
+    return ++_curSendPeer;
+  }
+  inline int GetStartingRecvPeerBias()
+  {
+    return ++_curRecvPeer;
+  }
+
+  inline int GetParentPeers()
+  {
+    return _nParentPeerList + 1;
+  }
+  inline Peer *GetNthParentPeer(int n, int bias)
+  {
+    return _ParentPeerList[(bias + n) % (_nParentPeerList + 1)];
+  }
+  inline int GetStartingParentPeerBias()
+  {
+    return ++_curParentPeer;
+  }
+
+  inline void SetLastRecvPeerBias(int b)
+  {
+    _last_recv_peer_bias = b;
+  }
+  inline int GetLastRecvPeerBias()
+  {
+    return _last_recv_peer_bias;
+  }
+  void CancelPendingReads();
+  void DumpICPConfig();
+
+private:
+  // Class data declarations
+  AtomicLock * _l;
+  int _Initialized;
+  int _AllowIcpQueries;
+  int _PendingIcpQueries;
+  ICPConfiguration *_ICPConfig;
+  ICPPeriodicCont *_ICPPeriodic;
+  ICPHandlerCont *_ICPHandler;
+  ICPHandlerCont *_mcastCB_handler;
+  Event *_PeriodicEvent;
+  Event *_ICPHandlerEvent;
+
+  enum
+  {
+    PEER_LIST_SIZE = 2 * MAX_DEFINED_PEERS,
+    SEND_PEER_LIST_SIZE = 2 * MAX_DEFINED_PEERS,
+    RECV_PEER_LIST_SIZE = 2 * MAX_DEFINED_PEERS,
+    PARENT_PEER_LIST_SIZE = 2 * MAX_DEFINED_PEERS,
+    PEER_ID_POLL_INDEX_SIZE = 2 * MAX_DEFINED_PEERS
+  };
+
+  // All Peer elements
+  int _nPeerList;               // valid PeerList[] entries - 1
+  Ptr<Peer> _PeerList[PEER_LIST_SIZE];
+  Ptr<Peer> _LocalPeer;
+
+  // Peers which are targets of ICP queries
+  int _curSendPeer;             // index bias for SendPeerList[]
+  int _nSendPeerList;           // valid SendPeerList[] entries - 1
+  Ptr<Peer> _SendPeerList[SEND_PEER_LIST_SIZE];
+
+  // List of Peers whom we issue reads from
+  int _curRecvPeer;             // index bias for RecvPeerList[]
+  int _nRecvPeerList;           // valid RecvPeerList[] entries - 1
+  Ptr<Peer> _RecvPeerList[RECV_PEER_LIST_SIZE];
+
+  // Peers on SendPeerList which are "parent" peers
+  int _curParentPeer;           // index bias for ParentPeerList[]
+  int _nParentPeerList;         // valid ParentPeerList[] entries - 1
+  Ptr<Peer> _ParentPeerList[PARENT_PEER_LIST_SIZE];
+
+  // Peer ID to Poll descriptor index map
+  int _ValidPollData;
+  int _PeerIDtoPollIndex[PEER_ID_POLL_INDEX_SIZE];
+  int _last_recv_peer_bias;     // bias used to build last poll data
+};
+
+//-----------------------------------------------------------------
+// PeriodicCont -- Abstract base class for periodic ICP processor
+//                 continuations
+//-----------------------------------------------------------------
+class PeriodicCont:public Continuation
+{
+public:
+  PeriodicCont(ICPProcessor * p);
+  virtual ~ PeriodicCont();
+  virtual int PeriodicEvent(int, Event *) = 0;
+
+protected:
+    ICPProcessor * _ICPpr;
+};
+
+//---------------------------------------------------------------
+// ICPPeriodicCont -- ICPProcessor periodic event continuation.
+//   Periodicly look for ICP configuration updates and if
+//   updates exist schedule ICP reconfiguration.
+//---------------------------------------------------------------
+class ICPPeriodicCont:public PeriodicCont
+{
+public:
+  enum
+  { PERIODIC_INTERVAL = 5000 };
+  enum
+  { RETRY_INTERVAL_MSECS = 10 };
+    ICPPeriodicCont(ICPProcessor *);
+   ~ICPPeriodicCont()
+  {
+  }
+  virtual int PeriodicEvent(int, Event *);
+  int DoReconfigAction(int, Event *);
+
+private:
+  int _last_icp_config_callouts;
+  int _global_config_changed;
+  int _peer_config_changed;
+};
+
+//-----------------------------------------------------------------
+// ICPHandlerCont -- Periodic for incoming message processing
+//-----------------------------------------------------------------
+class ICPHandlerCont:public PeriodicCont
+{
+public:
+  enum
+  {
+    ICP_HANDLER_INTERVAL = 10
+  };
+    ICPHandlerCont(ICPProcessor *);
+   ~ICPHandlerCont()
+  {
+  }
+  virtual int PeriodicEvent(int, Event *);
+  virtual int TossEvent(int, Event *);
+
+#ifdef DEBUG_ICP
+  // state history
+#define MAX_ICP_HISTORY 20
+  struct statehistory
+  {
+    int event;
+    int newstate;
+    char *file;
+    int line;
+  };
+  statehistory _history[MAX_ICP_HISTORY];
+  int _nhistory;
+
+#define RECORD_ICP_STATE_CHANGE(peerreaddata,event_,newstate_) \
+    peerreaddata->_history[peerreaddata->_nhistory].event = event_; \
+    peerreaddata->_history[peerreaddata->_nhistory].newstate = newstate_; \
+    peerreaddata->_history[peerreaddata->_nhistory].file = __FILE__; \
+    peerreaddata->_history[peerreaddata->_nhistory].line = __LINE__; \
+    peerreaddata->_nhistory = (peerreaddata->_nhistory + 1) % MAX_ICP_HISTORY;
+
+#else
+#define RECORD_ICP_STATE_CHANGE(x,y,z)
+#endif
+
+  static int64_t ICPDataBuf_IOBuffer_sizeindex;
+};
+
+//------------------------------------------------------------------
+// ICPPeerReadCont -- ICP incoming message processing state machine
+//------------------------------------------------------------------
+class ICPPeerReadCont:public Continuation
+{
+public:
+  typedef enum
+  {
+    READ_ACTIVE,
+    READ_DATA,
+    READ_DATA_DONE,
+    PROCESS_READ_DATA,
+    ADD_PEER,
+    AWAITING_CACHE_LOOKUP_RESPONSE,
+    SEND_REPLY,
+    WRITE_DONE,
+    GET_ICP_REQUEST,
+    GET_ICP_REQUEST_MUTEX,
+    READ_NOT_ACTIVE,
+    READ_NOT_ACTIVE_EXIT,
+    READ_PROCESSING_COMPLETE
+  } PeerReadState_t;
+
+  class PeerReadData
+  {
+  public:
+    PeerReadData();
+    void init();
+     ~PeerReadData();
+    void reset(int full_reset = 0);
+
+    ink_hrtime _start_time;
+    ICPPeerReadCont *_mycont;
+      Ptr<Peer> _peer;
+    PeerReadState_t _next_state;
+    int _cache_lookup_local;
+      Ptr<IOBufferBlock> _buf;       // the buffer with the ICP message in it
+    ICPMsg_t *_rICPmsg;
+    int _rICPmsg_len;
+    IpEndpoint _sender; // sender of rICPmsg
+    URL _cachelookupURL;
+    int _queryResult;
+    ICPRequestCont *_ICPReqCont;
+    int _bytesReceived;
+    // response data
+    struct msghdr _mhdr;
+    struct iovec _iov[MSG_IOVECS];
+  };
+
+    ICPPeerReadCont();
+  void init(ICPProcessor *, Peer *, int);
+   ~ICPPeerReadCont();
+  void reset(int full_reset = 0);
+  int ICPPeerReadEvent(int, Event *);
+  int ICPPeerQueryCont(int, Event *);
+  int ICPPeerQueryEvent(int, Event *);
+  int StaleCheck(int, Event *);
+  int PeerReadStateMachine(PeerReadData *, Event *);
+
+  enum
+  { RETRY_INTERVAL = 10 };
+
+  // Freshness specific data
+  CacheVConnection *_object_vc;
+  HTTPInfo *_object_read;
+  HdrHeapSDKHandle *_cache_req_hdr_heap_handle;
+  HdrHeapSDKHandle *_cache_resp_hdr_heap_handle;
+
+private:
+  // Class data
+    ICPProcessor * _ICPpr;
+  PeerReadData *_state;
+  ink_hrtime _start_time;
+  int _recursion_depth;
+};
+
+//----------------------------------------------------------------------
+// ICPRequestCont -- ICP Request continuation  (Outgoing ICP requests)
+//----------------------------------------------------------------------
+class ICPRequestCont:public Continuation
+{
+  friend class ICPProcessor;
+
+public:
+    ICPRequestCont(ICPProcessor * i = 0, Continuation * c = 0, URL * u = 0);
+   ~ICPRequestCont();
+  void *operator  new(size_t size, void *mem);
+  void operator  delete(void *mem);
+  inline void SetRequestStartTime()
+  {
+    _start_time = ink_get_hrtime();
+  }
+  inline ink_hrtime GetRequestStartTime()
+  {
+    return _start_time;
+  }
+  inline class Action *GetActionPtr()
+  {
+    return &_act;
+  }
+
+  enum
+  { RETRY_INTERVAL = 10 };
+  enum
+  { ICP_REQUEST_HASH_SIZE = 1024 };
+
+  //***********************************************************************
+  // ICPPeerReadCont::PeerReadStateMachine() to
+  // ICPRequestCont::ICPStateMachine() calling sequence definition.
+  //
+  //     ICPRequestEvent(ICP_RESPONSE_MESSAGE, ICPRequestEventArgs_t *)
+  //
+  //***********************************************************************
+  typedef struct ICPRequestEventArgs
+  {
+    ICPMsg_t *rICPmsg;
+    int rICPmsg_len;
+    Peer *peer;
+  } ICPRequestEventArgs_t;
+  //***********************************************************************
+  int ICPRequestEvent(int, Event *);
+  int NopICPRequestEvent(int, Event *);
+
+  // Static member functions
+  static void NetToHostICPMsg(ICPMsg_t *, ICPMsg_t *);
+  static int BuildICPMsg(ICPopcode_t op, unsigned int sequence_number,
+                         int optflags, int optdata, int shostid,
+                         void *data, int datalen, struct msghdr *mhdr, struct iovec *iov, ICPMsg_t * icpmsg);
+
+  static unsigned int ICPReqSeqNumber();
+  static int ICPRequestHash(unsigned int);
+  static int AddICPRequest(unsigned int, ICPRequestCont *);
+  static ICPRequestCont *FindICPRequest(unsigned int);
+  static int RemoveICPRequest(unsigned int);
+
+private:
+  typedef enum
+  {
+    ICP_START,
+    ICP_OFF_TERMINATE,
+    ICP_QUEUE_REQUEST,
+    ICP_AWAITING_RESPONSE,
+    ICP_DEQUEUE_REQUEST,
+    ICP_POST_COMPLETION,
+    ICP_WAIT_SEND_COMPLETE,
+    ICP_REQUEST_NOT_ACTIVE,
+    ICP_DONE
+  } ICPstate_t;
+  int ICPStateMachine(int, void *);
+  int ICPResponseMessage(int, ICPMsg_t *, Peer *);
+  void remove_from_pendingActions(Action *);
+  void remove_all_pendingActions();
+
+  // Static data
+  static uint32_t ICPRequestSeqno;
+
+  // Passed request data
+  Continuation *_cont;
+  URL *_url;
+
+  // Return data
+  IpEndpoint _ret_sockaddr;
+  ICPreturn_t _ret_status;
+  class Action _act;
+
+  // Internal working data
+  ink_hrtime _start_time;
+  ICPProcessor *_ICPpr;
+  Event *_timeout;
+
+  // outstanding actions
+  int npending_actions;
+  DynArray<Action *>*pendingActions;
+
+  ICPMsg_t _ICPmsg;
+  struct msghdr _sendMsgHdr;
+  struct iovec _sendMsgIOV[MSG_IOVECS];
+
+  unsigned int _sequence_number;
+  int _expected_replies;
+  BitMap _expected_replies_list;
+  int _received_replies;
+  ICPstate_t _next_state;
+};
+
+
+extern ClassAllocator<ICPRequestCont> ICPRequestCont_allocator;
+
+typedef int (*PluginFreshnessCalcFunc) (void *contp);
+extern PluginFreshnessCalcFunc pluginFreshnessCalcFunc;
+
+inline void *
+ICPRequestCont::operator new(size_t /* size ATS_UNUSED */, void *mem)
+{
+  return mem;
+}
+
+inline void
+ICPRequestCont::operator delete(void *mem)
+{
+  ICPRequestCont_allocator.free((ICPRequestCont *) mem);
+}
+
+extern struct RecRawStatBlock *icp_rsb;
+
+enum
+{
+  icp_stat_def,
+  config_mgmt_callouts_stat,
+  reconfig_polls_stat,
+  reconfig_events_stat,
+  invalid_poll_data_stat,
+  no_data_read_stat,
+  short_read_stat,
+  invalid_sender_stat,
+  read_not_v2_icp_stat,
+  icp_remote_query_requests_stat,
+  icp_remote_responses_stat,
+  icp_cache_lookup_success_stat,
+  icp_cache_lookup_fail_stat,
+  query_response_write_stat,
+  query_response_partial_write_stat,
+  no_icp_request_for_response_stat,
+  icp_response_request_nolock_stat,
+  icp_start_icpoff_stat,
+  send_query_partial_write_stat,
+  icp_queries_no_expected_replies_stat,
+  icp_query_hits_stat,
+  icp_query_misses_stat,
+  invalid_icp_query_response_stat,
+  icp_query_requests_stat,
+  total_icp_response_time_stat,
+  total_udp_send_queries_stat,
+  total_icp_request_time_stat,
+  icp_total_reloads,
+  icp_pending_reloads,
+  icp_reload_start_aborts,
+  icp_reload_connect_aborts,
+  icp_reload_read_aborts,
+  icp_reload_write_aborts,
+  icp_reload_successes,
+  icp_stat_count
+};
+
+#define ICP_EstablishStaticConfigInteger(_ix,_n) \
+  	REC_EstablishStaticConfigInt32(_ix,_n)
+
+#define ICP_EstablishStaticConfigStringAlloc(_ix, n) \
+	REC_EstablishStaticConfigStringAlloc(_ix, n)
+
+#define ICP_INCREMENT_DYN_STAT(x) \
+        RecIncrRawStat(icp_rsb, mutex->thread_holding, (int) x, 1)
+#define ICP_DECREMENT_DYN_STAT(x) \
+        RecIncrRawStat(icp_rsb, mutex->thread_holding, (int) x, -1)
+#define ICP_SUM_DYN_STAT(x, y) \
+        RecIncrRawStat(icp_rsb, mutex->thread_holding, (int) x, (y))
+#define ICP_READ_DYN_STAT(x, C, S) \
+        RecGetRawStatCount(icp_rsb, (int) x, &C); \
+        RecGetRawStatSum(icp_rsb, (int) x, &S);
+
+#define ICP_ReadConfigString 	      REC_ReadConfigString
+#define ICP_RegisterConfigUpdateFunc  REC_RegisterConfigUpdateFunc
+
+
+// End of ICP.h
+
+#endif // _ICP_H_
diff --git a/proxy/ICPConfig.cc b/proxy/ICPConfig.cc
new file mode 100644
index 00000000..b6485859
--- /dev/null
+++ b/proxy/ICPConfig.cc
@@ -0,0 +1,1511 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ICPConfig.cc
+
+
+****************************************************************************/
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "P_Cache.h"
+#include "P_Net.h"
+#include "P_RecProcess.h"
+#include "Main.h"
+#include "ICP.h"
+#include "ICPProcessor.h"
+#include "ICPlog.h"
+#include "BaseManager.h"
+#include "I_Layout.h"
+
+//--------------------------------------------------------------------------
+//  Each ICP peer is described in "icp.config" with the
+//  following info:
+//    hostname (string)         -- hostname, used only if (host_ip_str == 0)
+//    host_ip_str (string)      -- decimal dot notation; if null get IP
+//                                   addresss via lookup on hostname
+//    ctype (int)               -- 1=Parent, 2=Sibling
+//    proxy_port (int)          -- TCP Port #
+//    icp_port (int)            -- UDP Port #
+//    multicast_member          -- 0=No 1=Yes
+//    multicast_ip_str (string) -- decimal dot notation
+//    multicast_ttl (int)       -- (1 - 2; default 1)
+//
+//#############################################################################
+//
+//  ICP global configuration options are described in "records.config" using
+//  the following entries.
+//
+//    proxy.config.icp.icp_configuration STRING (default "icp.config")
+//    proxy.config.icp.enabled INT (0=No 1=Yes)
+//    proxy.config.icp.icp_port INT 3130
+//    proxy.config.icp.icp_interface STRING hme0
+//    proxy.config.icp.multicast_enabled INT (0=No 1=Yes)
+//    proxy.config.icp.query_timeout INT (seconds default is 2 secs)
+//    proxy.config.icp.lookup_local INT (default is cluster lookup)
+//
+//  Example (1 parent and 1 sibling):
+//  ============================================
+//    proxy.config.icp.enabled INT 1
+//    proxy.config.icp.multicast_enabled INT 0
+//    proxy.config.icp.query_timeout INT 2
+//
+//    === "icp.config" entries ===
+//
+//    hostname:         "host1"
+//    host_ip_str:      "209.1.33.10"
+//    ctype:            1
+//    proxy_port:       8080
+//    icp_port:         3130
+//    multicast_member  0
+//    multicast_ip_str: "0.0.0.0"
+//    multicast_ttl:    0
+//
+//    hostname:         "host2"
+//    host_ip_str:      "209.1.33.11"
+//    ctype:            2
+//    proxy_port:       8080
+//    icp_port:         3130
+//    multicast_member  0
+//    multicast_ip_str: "0.0.0.0"
+//    multicast_ttl:    0
+//
+//  Example (1 parent and 1 sibling using MultiCast):
+//  ============================================================
+//    proxy.config.icp.enabled INT 1
+//    proxy.config.icp.multicast_enabled INT 1
+//    proxy.config.icp.query_timeout INT 2
+//
+//    === "icp.config" entries ===
+//
+//    hostname:         "host1"
+//    host_ip_str:      "209.1.33.10"
+//    ctype:            1
+//    proxy_port:       8080
+//    icp_port:         3130
+//    multicast_member  1
+//    multicast_ip_str: "239.128.16.128"
+//    multicast_ttl:    1
+//
+//    hostname:         "host2"
+//    host_ip_str:      "209.1.33.11"
+//    ctype:            2
+//    proxy_port:       8080
+//    icp_port:         3130
+//    multicast_member  1
+//    multicast_ip_str: "239.128.16.128"
+//    multicast_ttl:    1
+//
+
+//------------------------------------
+// Class AtomicLock member functions
+//------------------------------------
+#if !defined(USE_CAS_FOR_ATOMICLOCK)
+AtomicLock::AtomicLock()
+{
+  _mutex = new_ProxyMutex();
+}
+
+AtomicLock::~AtomicLock()
+{
+}
+
+int
+AtomicLock::Lock()
+{
+  EThread *et = this_ethread();
+  ink_assert(et != NULL);
+  return MUTEX_TAKE_TRY_LOCK(_mutex, et);
+}
+
+int
+AtomicLock::HaveLock()
+{
+  EThread *et = this_ethread();
+  ink_assert(et != NULL);
+  return (_mutex->thread_holding == et);
+}
+
+void
+AtomicLock::Unlock()
+{
+  EThread *et = this_ethread();
+  ink_assert(et != NULL);
+  MUTEX_UNTAKE_LOCK(_mutex, et);
+}
+
+#else // USE_CAS_FOR_ATOMICLOCK
+AtomicLock::AtomicLock():lock_word(0)
+{
+}
+
+AtomicLock::~AtomicLock()
+{
+}
+
+int
+AtomicLock::Lock()
+{
+  bool status = ink_atomic_cas(&_lock_word, AtomicLock::UNLOCKED,
+                               AtomicLock::LOCKED);
+  return status;
+}
+
+int
+AtomicLock::HaveLock()
+{
+  return (_lock_word == LOCKED);
+}
+
+void
+AtomicLock::Unlock()
+{
+  ink_assert(_lock_word == AtomicLock::LOCKED);
+  _lock_word = AtomicLock::UNLOCKED;
+}
+#endif // USE_CAS_FOR_ATOMICLOCK
+
+//---------------------------------------------------------------------
+// Class BitMap -- Member functions.
+//                 Generic bitmap management class
+//      Note: Bit positions are zero based (0 .. (bitmap_maxsize-1) )
+//---------------------------------------------------------------------
+BitMap::BitMap(int bitmap_maxsize)
+{
+  if (bitmap_maxsize <= (int) (STATIC_BITMAP_BYTE_SIZE * BITS_PER_BYTE)) {
+    _bitmap = _static_bitmap;
+    _bitmap_size = bitmap_maxsize;
+    _bitmap_byte_size = STATIC_BITMAP_BYTE_SIZE;
+  } else {
+    _bitmap_byte_size = (bitmap_maxsize + (BITS_PER_BYTE - 1)) / BITS_PER_BYTE;
+    _bitmap = new char[_bitmap_byte_size];
+    _bitmap_size = bitmap_maxsize;
+  }
+  memset((void *) _bitmap, 0, _bitmap_byte_size);
+}
+
+BitMap::~BitMap()
+{
+  if (_bitmap_size > (int) (STATIC_BITMAP_BYTE_SIZE * BITS_PER_BYTE)) {
+    delete[]_bitmap;
+  }
+}
+
+void
+BitMap::SetBit(int bit)
+{
+  if (bit >= _bitmap_size)
+    return;
+
+  char *pbyte = &_bitmap[bit / BITS_PER_BYTE];
+  *pbyte |= (1 << (bit % BITS_PER_BYTE));
+}
+
+void
+BitMap::ClearBit(int bit)
+{
+  if (bit >= _bitmap_size)
+    return;
+
+  char *pbyte = &_bitmap[bit / BITS_PER_BYTE];
+  *pbyte &= ~(1 << (bit % BITS_PER_BYTE));
+}
+
+int
+BitMap::IsBitSet(int bit)
+{
+  if (bit >= _bitmap_size)
+    return 0;
+
+  char *pbyte = &_bitmap[bit / BITS_PER_BYTE];
+  if (*pbyte & (1 << (bit % BITS_PER_BYTE)))
+    return 1;
+  else
+    return 0;
+}
+
+//-----------------------------------------------------------------------
+// Class ICPConfigData member functions
+//      Manage global ICP configuration data from the TS configuration.
+//      Support class for ICPConfiguration.
+//-----------------------------------------------------------------------
+int
+ICPConfigData::operator==(ICPConfigData & ICPData)
+{
+  if (ICPData._icp_enabled != _icp_enabled)
+    return 0;
+  if (ICPData._icp_port != _icp_port)
+    return 0;
+  if (ICPData._icp_interface != _icp_interface)
+    return 0;
+  if (ICPData._multicast_enabled != _multicast_enabled)
+    return 0;
+  if (ICPData._icp_query_timeout != _icp_query_timeout)
+    return 0;
+  if (ICPData._cache_lookup_local != _cache_lookup_local)
+    return 0;
+  if (ICPData._stale_lookup != _stale_lookup)
+    return 0;
+  if (ICPData._reply_to_unknown_peer != _reply_to_unknown_peer)
+    return 0;
+  if (ICPData._default_reply_port != _default_reply_port)
+    return 0;
+  return 1;
+}
+
+//------------------------------------------------------------------------
+// Class PeerConfigData member functions
+//      Manage ICP Peer configuration data from the TS configuration.
+//      Support class for ICPConfiguration.
+//------------------------------------------------------------------------
+PeerConfigData::PeerConfigData():_ctype(CTYPE_NONE), _proxy_port(0), _icp_port(0), _mc_member(0), _mc_ttl(0)
+{
+  memset(_hostname, 0, HOSTNAME_SIZE);
+}
+
+PeerType_t PeerConfigData::CTypeToPeerType_t(int ctype)
+{
+  switch (ctype) {
+  case (int) CTYPE_PARENT:
+    return PEER_PARENT;
+
+  case (int) CTYPE_SIBLING:
+    return PEER_SIBLING;
+
+  case (int) CTYPE_LOCAL:
+    return PEER_LOCAL;
+
+  default:
+    return PEER_NONE;
+  }
+}
+
+int
+PeerConfigData::GetHostIPByName(char *hostname, IpAddr& rip)
+{
+  // Short circuit NULL hostname case
+  if (0 == hostname || 0 == *hostname)
+    return 1;                   // Unable to map to IP address
+
+  addrinfo hints;
+  addrinfo *ai;
+  sockaddr const* best = 0;
+
+  ink_zero(hints);
+  hints.ai_family = AF_UNSPEC;
+  hints.ai_flags = AI_ADDRCONFIG;
+  if (0 == getaddrinfo(hostname, 0, &hints, &ai)) {
+    for ( addrinfo *spot = ai ; spot ; spot = spot->ai_next) {
+      // If current address is valid, and either we don't have one yet
+      // or this address is less than our current, set it as current.
+      if (ats_is_ip(spot->ai_addr) &&
+        (!best || -1 == ats_ip_addr_cmp(spot->ai_addr, best))
+      ) {
+        best = spot->ai_addr;
+      }
+    }
+    if (best) rip.assign(best);
+    freeaddrinfo(ai);
+  }
+  return best ? 0 : 1;
+}
+
+bool PeerConfigData::operator==(PeerConfigData & PeerData)
+{
+  if (strncmp(PeerData._hostname, _hostname, PeerConfigData::HOSTNAME_SIZE) != 0)
+    return false;
+  if (PeerData._ctype != _ctype)
+    return false;
+  if (PeerData._ip_addr != _ip_addr)
+    return false;
+  if (PeerData._proxy_port != _proxy_port)
+    return false;
+  if (PeerData._icp_port != _icp_port)
+    return false;
+  if (PeerData._mc_member != _mc_member)
+    return false;
+  if (PeerData._mc_ip_addr != _mc_ip_addr)
+    return false;
+  if (PeerData._mc_ttl != _mc_ttl)
+    return false;
+  return true;
+}
+
+//-----------------------------------------------------------------------
+// Class ICPConfigUpdateCont member functions
+//      Retry callout to ICPConfiguration::icp_config_change_callback()
+//-----------------------------------------------------------------------
+ICPConfigUpdateCont::ICPConfigUpdateCont(void *d, void *v):
+Continuation(new_ProxyMutex()), _data(d), _value(v)
+{
+}
+
+int
+ICPConfigUpdateCont::RetryICPconfigUpdate(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  ICPConfiguration::icp_config_change_callback(_data, _value);
+  delete this;
+  return EVENT_DONE;
+}
+
+//--------------------------------------------------------------------------
+// Class ICPConfiguration member functions
+//      Overall manager of ICP configuration data from TS configuration.
+//--------------------------------------------------------------------------
+typedef int (ICPConfigUpdateCont::*ICPCfgContHandler) (int, void *);
+ICPConfiguration::ICPConfiguration():_icp_config_callouts(0)
+{
+  //*********************************************************
+  // Allocate working and current ICPConfigData structures
+  //*********************************************************
+  _icp_cdata = new ICPConfigData();
+  _icp_cdata_current = new ICPConfigData();
+
+  //********************************************************************
+  // Read ICP config and setup update callbacks for "icp_cdata_current"
+  //********************************************************************
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_icp_enabled, "proxy.config.icp.enabled");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_icp_port, "proxy.config.icp.icp_port");
+  ICP_EstablishStaticConfigStringAlloc(_icp_cdata_current->_icp_interface, "proxy.config.icp.icp_interface");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_multicast_enabled, "proxy.config.icp.multicast_enabled");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_icp_query_timeout, "proxy.config.icp.query_timeout");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_cache_lookup_local, "proxy.config.icp.lookup_local");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_stale_lookup, "proxy.config.icp.stale_icp_enabled");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_reply_to_unknown_peer,
+                                   "proxy.config.icp.reply_to_unknown_peer");
+  ICP_EstablishStaticConfigInteger(_icp_cdata_current->_default_reply_port, "proxy.config.icp.default_reply_port");
+  UpdateGlobalConfig();         // sync working copy with current
+
+  //**********************************************************
+  // Allocate working and current PeerConfigData structures
+  //**********************************************************
+  for (int n = 0; n <= MAX_DEFINED_PEERS; ++n) {
+    _peer_cdata[n] = new PeerConfigData;
+    _peer_cdata_current[n] = new PeerConfigData;
+  }
+
+  //*********************************************************
+  // Initialize Peer data by simulating an update callout.
+  //*********************************************************
+  char
+    icp_config_filename[PATH_NAME_MAX] = "";
+  ICP_ReadConfigString(icp_config_filename, "proxy.config.icp.icp_configuration", sizeof(icp_config_filename) - 1);
+  (void) icp_config_change_callback((void *) this, (void *) icp_config_filename, 1);
+  UpdatePeerConfig();           // sync working copy with current
+
+  //***************************************
+  // Setup update callout on "icp.config"
+  //***************************************
+  ICP_RegisterConfigUpdateFunc("proxy.config.icp.icp_configuration", mgr_icp_config_change_callback, (void *) this);
+}
+
+ICPConfiguration::~ICPConfiguration()
+{
+  // TBD: Need to disable update callbacks before deallocating data.
+  //      How do we do this?  For now, this never happens.
+#ifdef OMIT
+  if (_icp_cdata) {
+    // TBD: Make sure _icp_cdata->_icp_interface has been freed
+    delete((void *) _icp_cdata);
+  }
+  if (_icp_cdata_current)
+    delete((void *) _icp_cdata_current);
+  if (_peer_cdata)
+    delete((void *) _peer_cdata);
+  if (_peer_cdata_current)
+    delete((void *) _peer_cdata_current);
+#endif // OMIT
+}
+
+int
+ICPConfiguration::GlobalConfigChange()
+{
+  return (!(*_icp_cdata == *_icp_cdata_current));
+}
+
+void
+ICPConfiguration::UpdateGlobalConfig()
+{
+  *_icp_cdata = *_icp_cdata_current;
+}
+
+int
+ICPConfiguration::PeerConfigChange()
+{
+  // Note: Entry zero reserved for "localhost"
+  for (int i = 1; i <= MAX_DEFINED_PEERS; ++i) {
+    if (!(*_peer_cdata[i] == *_peer_cdata_current[i]))
+      return 1;
+  }
+  return 0;
+}
+
+void
+ICPConfiguration::UpdatePeerConfig()
+{
+  // Note: Entry zero reserved for "localhost"
+  for (int i = 1; i <= MAX_DEFINED_PEERS; ++i) {
+    //
+    // Broken on DEC and Solaris x86
+    // *_peer_cdata[i] = *_peer_cdata_current[i];
+    //
+    memcpy(_peer_cdata[i], _peer_cdata_current[i], sizeof(*_peer_cdata[i]));
+    // Setup IP address
+    if ((_peer_cdata[i]->_ip_addr.isValid()) && _peer_cdata[i]->_hostname) {
+      // IP address not specified, lookup using hostname.
+      (void) PeerConfigData::GetHostIPByName(_peer_cdata[i]->_hostname, _peer_cdata[i]->_my_ip_addr);
+    } else {
+      // IP address specified by user, lookup on hostname not required.
+      _peer_cdata[i]->_my_ip_addr = _peer_cdata[i]->_ip_addr;
+    }
+  }
+}
+
+int
+ICPConfiguration::mgr_icp_config_change_callback(const char * /* name ATS_UNUSED */,
+                                                 RecDataT /* data_type ATS_UNUSED */, RecData data, void *cookie)
+{
+  //*****************************************************************
+  // Callout invoked by Configuration management when changes occur
+  // to icp.config
+  //*****************************************************************
+
+  // Map this manager configuration callout onto ET_ICP
+
+  ICPConfigUpdateCont *rh = new ICPConfigUpdateCont(cookie, data.rec_string);
+  SET_CONTINUATION_HANDLER(rh, (ICPCfgContHandler) & ICPConfigUpdateCont::RetryICPconfigUpdate);
+  eventProcessor.schedule_imm(rh, ET_ICP);
+  return EVENT_DONE;
+}
+
+namespace {
+  inline char* next_field(char* text, char fs) {
+    text = strchr(text, fs);
+    // Compress contiguous whitespace by leaving zret pointing at the last space.
+    if (text && *text == fs)
+      while (text[1] == fs) ++text;
+    return text;
+  }
+}
+
+void *
+ICPConfiguration::icp_config_change_callback(void *data, void *value, int startup)
+{
+  EThread *thread = this_ethread();
+  ProxyMutex *mutex = thread->mutex;
+
+  //
+  // Cast passed parameters to correct types
+  //
+  char *filename = (char *) value;
+  ICPConfiguration *ICPconfig = (ICPConfiguration *) data;
+
+  //
+  // Determine if data is locked, if so defer update action
+  //
+  if (!startup && !ICPconfig->Lock()) {
+    // Build retry continuation
+    ICPConfigUpdateCont *rh = new ICPConfigUpdateCont(data, value);
+    SET_CONTINUATION_HANDLER(rh, (ICPCfgContHandler) & ICPConfigUpdateCont::RetryICPconfigUpdate);
+    eventProcessor.schedule_in(rh, HRTIME_MSECONDS(ICPConfigUpdateCont::RETRY_INTERVAL), ET_ICP);
+    return EVENT_DONE;
+  }
+  ICP_INCREMENT_DYN_STAT(config_mgmt_callouts_stat);
+  ICPconfig->_icp_config_callouts++;
+
+  //
+  // Allocate working buffer for PeerConfigData[]
+  //
+  PeerConfigData *P = new PeerConfigData[MAX_DEFINED_PEERS + 1];
+
+  //
+  // Build pathname to "icp.config" and open file
+  //
+  ink_release_assert(filename != NULL);
+
+  xptr<char> config_path(Layout::get()->relative_to(Layout::get()->sysconfdir, filename));
+  int fd = open(config_path, O_RDONLY);
+  if (fd < 0) {
+    Warning("read icp.config, open failed");
+    REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, open failed");
+    delete[]P;
+    return EVENT_DONE;
+  }
+  //***********************************************************************
+  // Parse records in "icp.config"
+  //  Each line is formatted as follows with ":" separator for each field
+  //    - hostname (string)           -- Identifier for entry
+  //    - host_ip_str (string)        -- decimal dot notation
+  //    - ctype (int)                 -- 1=Parent, 2=Sibling
+  //    - proxy_port (int)            -- TCP Port #
+  //    - icp_port (int)              -- UDP Port #
+  //    - multicast_member            -- 0=No 1=Yes
+  //    - multicast_ip_str (string)   -- decimal dot notation
+  //    - multicast_ttl (int)         -- (1 - 2; default 1)
+  //***********************************************************************
+  const int colons_per_entry = 8;       // expected ':' separators per entry
+
+  int error = 0;
+  int ln = 0;
+  int n_colons;
+  char line[512];
+  char *cur;
+  char *next;
+  char *p;
+  char fs = ':'; // field separator.
+  int len; // length of current input line (original).
+
+  int n = 1;                    // Note: Entry zero reserved for "localhost" data
+
+  //////////////////////////////////////////////////////////////////////
+  // Read and parse "icp.config" entries.
+  //
+  // Note: ink_file_fd_readline() null terminates returned buffer
+  //////////////////////////////////////////////////////////////////////
+  while ((len = ink_file_fd_readline(fd, sizeof(line) - 1, line)) > 0) {
+    ln++;
+    cur = line;
+    while (isspace(*cur)) ++cur, --len; // skip leading space.
+    if (!*cur || *cur == '#')
+      continue;
+
+    if (n >= MAX_DEFINED_PEERS) {
+      Warning("read icp.config, maximum peer entries exceeded");
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, maximum peer entries exceeded");
+      error = 1;
+      break;
+    }
+    //***********************************
+    // Verify general syntax of entry
+    //***********************************
+    /* Ugly. The original field separator was colon, but we can't have that
+       if we want to support IPv6. So - since each line is required to have a
+       separator at the end of the line, we look there and require it to be
+       consistent. It still must be an acceptable character.
+    */
+    char* last = cur + len -1; // last character.
+    if ('\n' == *last) --last; // back over trailing LF.
+    if (NULL == strchr(" ;:|,", *last)) {
+      Warning("read icp.config, invalid separator [value %d]", *last);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, invalid separator");
+      error = 1;
+      break;
+    }
+    fs = *last;
+
+    n_colons = 0;
+    p = cur;
+    while (0 != (p = next_field(p, fs))) {
+      ++p;
+      ++n_colons;
+    }
+    if (n_colons != colons_per_entry) {
+      Warning("read icp.config, invalid syntax, line %d: expected %d fields, found %d", ln, colons_per_entry, n_colons);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, invalid syntax: wrong number of fields");
+      error = 1;
+      break;
+    }
+    //*******************
+    // Extract hostname
+    //*******************
+    next = next_field(cur, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      ink_strlcpy(P[n]._hostname, cur, PeerConfigData::HOSTNAME_SIZE);
+    } else {
+      P[n]._hostname[0] = 0;
+    }
+    //*********************
+    // Extract host_ip_str
+    //*********************
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      if (0 != P[n]._ip_addr.load(cur)) {
+        Warning("read icp.config, bad host ip_addr, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad host ip_addr");
+        error = 1;
+        break;
+      }
+    } else {
+      P[n]._ip_addr.invalidate();
+    }
+
+    if (!P[n]._hostname[0] && !P[n]._ip_addr.isValid()) {
+      Warning("read icp.config, bad hostname, line %d", ln);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad hostname");
+      error = 1;
+      break;
+    }
+    //******************
+    // Extract ctype
+    //******************
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      P[n]._ctype = atoi(cur);
+      if ((P[n]._ctype != PeerConfigData::CTYPE_PARENT) && (P[n]._ctype != PeerConfigData::CTYPE_SIBLING)) {
+        Warning("read icp.config, bad ctype, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad ctype");
+        error = 1;
+        break;
+      }
+    } else {
+      Warning("read icp.config, 2bad ctype, line %d", ln);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, 2bad ctype");
+      error = 1;
+      break;
+    }
+    //*********************
+    // Extract proxy_port
+    //*********************
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      if ((P[n]._proxy_port = atoi(cur)) <= 0) {
+        Warning("read icp.config, bad proxy_port, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad proxy_port");
+        error = 1;
+        break;
+      }
+    } else {
+      Warning("read icp.config, 2bad proxy_port, line %d", ln);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, 2bad proxy_port");
+      error = 1;
+      break;
+    }
+    //*********************
+    // Extract icp_port
+    //*********************
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      if ((P[n]._icp_port = atoi(cur)) <= 0) {
+        Warning("read icp.config, bad icp_port, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad icp_port");
+        error = 1;
+        break;
+      }
+    } else {
+      Warning("read icp.config, 2bad icp_port, line %d", ln);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, 2bad icp_port");
+      error = 1;
+      break;
+    }
+    //****************************
+    // Extract multicast_member
+    //****************************
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      if ((P[n]._mc_member = atoi(cur)) < 0) {
+        Warning("read icp.config, bad mc_member, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad mc_member");
+        error = 1;
+        break;
+      }
+      if ((P[n]._mc_member != 0) && (P[n]._mc_member != 1)) {
+        Warning("read icp.config, bad mc_member (2), line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad mc_member (2)");
+        error = 1;
+        break;
+      }
+    } else {
+      Warning("read icp.config, 2bad mc_member, line %d", ln);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, 2bad mc_member");
+      error = 1;
+      break;
+    }
+    //****************************
+    // Extract multicast_ip_str
+    //****************************
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      P[n]._mc_ip_addr.load(cur);
+      // Validate only if "multicast_member" is set.
+      if (P[n]._mc_member != 0 && !P[n]._mc_ip_addr.isMulticast()) {
+        Warning("read icp.config, bad multicast ip_addr, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad multicast ip_addr");
+        error = 1;
+        break;
+      }
+    } else {
+      P[n]._mc_ip_addr.invalidate();
+    }
+    //************************
+    // Extract multicast_ttl
+    //************************
+    // Note: last entry is always terminated with a ":"
+    cur = next;
+    next = next_field(next, fs);
+    *next++ = 0;
+    if (cur != (next - 1)) {
+      P[n]._mc_ttl = atoi(cur);
+      if ((P[n]._mc_ttl = atoi(cur)) <= 0) {
+        Warning("read icp.config, bad mc_ttl, line %d", ln);
+        REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, bad mc_ttl");
+        error = 1;
+        break;
+      }
+    } else {
+      Warning("read icp.config, 2bad mc_ttl, line %d", ln);
+      REC_SignalWarning(REC_SIGNAL_CONFIG_ERROR, "read icp.config, 2bad mc_ttl");
+      error = 1;
+      break;
+    }
+    n++;                        // bump PeerConfigData[] index
+  }
+  close(fd);
+
+  if (!error) {
+    for (int i = 0; i <= MAX_DEFINED_PEERS; i++)
+      *ICPconfig->_peer_cdata_current[i] = P[i];
+  }
+  delete[]P;                    // free working buffer
+  if (!startup)
+    ICPconfig->Unlock();
+  return EVENT_DONE;
+}
+
+//-------------------------------------------------------
+// Class Peer member functions (abstract base class)
+//-------------------------------------------------------
+Peer::Peer(PeerType_t t, ICPProcessor * icpPr, bool dynamic_peer):
+buf(NULL), notFirstRead(0), readAction(NULL), writeAction(NULL), _type(t), _next(0), _ICPpr(icpPr), _state(PEER_UP)
+{
+  notFirstRead = 0;
+  if (dynamic_peer) {
+    _state |= PEER_DYNAMIC;
+  }
+  memset((void *) &this->_stats, 0, sizeof(this->_stats));
+  ink_zero(fromaddr);
+  fromaddrlen = sizeof(fromaddr);
+  _id = 0;
+}
+
+void
+Peer::LogRecvMsg(ICPMsg_t * m, int valid)
+{
+  // Note: ICPMsg_t (m) is in native byte order
+
+  // Note numerous stats on a per peer basis
+  _stats.last_receive = ink_get_hrtime();
+  if ((m->h.opcode >= ICP_OP_QUERY) && (m->h.opcode <= ICP_OP_LAST)) {
+    _stats.recv[m->h.opcode]++;
+  } else {
+    _stats.recv[ICP_OP_INVALID]++;
+  }
+  _stats.total_received++;
+
+  if (!valid) {
+    // Message arrived, but ICP request no longer on pending list
+    _stats.dropped_replies++;
+  }
+  if ((_state & PEER_UP) == 0) {
+    ip_port_text_buffer ipb;
+    // Currently marked down so we still send but do not expect reply.
+    // Now mark up so we will wait for reply.
+    _state |= PEER_UP;
+    _stats.total_received = _stats.total_sent;  // restart timeout count
+
+    Debug("icp", "Peer [%s] now back online", ats_ip_nptop(this->GetIP(), ipb, sizeof(ipb)));
+  }
+}
+
+//---------------------------------------------------------------
+// Class ParentSiblingPeer (derived from Peer) member functions
+//      ICP object describing Parent or Sibling Peers.
+//---------------------------------------------------------------
+ParentSiblingPeer::ParentSiblingPeer(PeerType_t t, PeerConfigData * p, ICPProcessor * icpPr, bool dynamic_peer)
+:Peer(t, icpPr, dynamic_peer), _pconfig(p)
+{
+  ats_ip_set(&_ip.sa, _pconfig->GetIPAddr(), htons(_pconfig->GetICPPort()));
+}
+
+int
+ParentSiblingPeer::GetProxyPort()
+{
+  return _pconfig->GetProxyPort();
+}
+
+int
+ParentSiblingPeer::GetICPPort()
+{
+  return _pconfig->GetICPPort();
+}
+
+
+sockaddr*
+ParentSiblingPeer::GetIP()
+{
+  // The real data is in _pconfig, but I don't think ever changes so
+  // it should be OK to have set this in the constructor.
+  return &_ip.sa;
+}
+
+Action *
+ParentSiblingPeer::SendMsg_re(Continuation * cont, void *token, struct msghdr * msg, sockaddr const* to)
+{
+  // Note: All sends are funneled through the local peer UDP socket.
+
+  Peer *lp = _ICPpr->GetLocalPeer();
+
+  if (to) {
+    // Send to specified host
+    Peer *p = _ICPpr->FindPeer(IpAddr(to), ntohs(ats_ip_port_cast(to)));
+    ink_assert(p);
+
+    msg->msg_name = &p->GetSendChan()->addr;
+    msg->msg_namelen = ats_ip_size(&p->GetSendChan()->addr);
+    Action *a = udpNet.sendmsg_re(cont, token, lp->GetSendFD(), msg);
+    return a;
+  } else {
+    // Send to default host
+    msg->msg_name = & _chan.addr;
+    msg->msg_namelen = ats_ip_size(&_chan.addr.sa);
+    Action *a = udpNet.sendmsg_re(cont, token, lp->GetSendFD(), msg);
+    return a;
+  }
+}
+
+Action *
+ParentSiblingPeer::RecvFrom_re(Continuation * cont, void *token,
+                               IOBufferBlock * bufblock, int size, struct sockaddr * from, socklen_t *fromlen)
+{
+  // Note: All receives are funneled through the local peer UDP socket.
+
+  Peer *lp = _ICPpr->GetLocalPeer();
+  Action *a = udpNet.recvfrom_re(cont, token,
+                                 lp->GetRecvFD(), from, fromlen,
+                                 bufblock, size, true, 0);
+  return a;
+}
+
+int
+ParentSiblingPeer::GetRecvFD()
+{
+  return _chan.fd;
+}
+
+int
+ParentSiblingPeer::GetSendFD()
+{
+  return _chan.fd;
+}
+
+int
+ParentSiblingPeer::ExpectedReplies(BitMap * expected_replies_list)
+{
+  if (((_state & PEER_UP) == 0) || ((_stats.total_sent - _stats.total_received) > Peer::OFFLINE_THRESHOLD)) {
+    if (_state & PEER_UP) {
+      ip_port_text_buffer ipb;
+      _state &= ~PEER_UP;
+      Debug("icp", "Peer [%s] marked offline", ats_ip_nptop(this->GetIP(), ipb, sizeof(ipb)));
+    }
+    //
+    // We will continue to send messages, but will not wait for a reply
+    // until we receive a response.
+    //
+    return 0;
+  } else {
+    expected_replies_list->SetBit(this->GetPeerID());
+    return 1;
+  }
+}
+
+int
+ParentSiblingPeer::ValidSender(sockaddr* fr)
+{
+  if (_type == PEER_LOCAL) {
+    //
+    // We are currently funneling all unicast receives
+    // through the local peer UDP socket.  As long as
+    // the sender is known within the ICP configuration,
+    // consider it valid.
+    //
+    Peer *p = _ICPpr->FindPeer(fr);
+    if (p) {
+      return 1;                 // Valid sender
+    } else {
+      return 0;                 // Invalid sender
+    }
+
+  } else {
+    // Make sure the sockaddr_in corresponds to this peer
+    // Need to update once we have support for comparing address
+    // and port in a socakddr.
+    if (ats_ip_addr_eq(this->GetIP(), fr) &&
+      (ats_ip_port_cast(this->GetIP()) == ats_ip_port_cast(fr))
+    ) {
+      return 1;                 // Sender is this peer
+    } else {
+      return 0;                 // Sender is not this peer
+    }
+  }
+}
+
+void
+ParentSiblingPeer::LogSendMsg(ICPMsg_t * m, sockaddr const* /* sa ATS_UNUSED */)
+{
+  // Note: ICPMsg_t (m) is in network byte order
+
+  // Note numerous stats on a per peer basis
+  _stats.last_send = ink_get_hrtime();
+  _stats.sent[m->h.opcode]++;
+  _stats.total_sent++;
+}
+
+int
+ParentSiblingPeer::ExtToIntRecvSockAddr(sockaddr const* in, sockaddr *out)
+{
+  Peer *p = _ICPpr->FindPeer(IpAddr(in));
+  if (p && (p->GetType() != PEER_LOCAL)) {
+    // Map from received (ip, port) to defined (ip, port).
+    ats_ip_copy(out, p->GetIP());
+    return 1;
+  } else {
+    return 0;
+  }
+}
+
+//-----------------------------------------------------------
+// Class MultiCastPeer (derived from Peer) member functions
+//      ICP object describing MultiCast Peers.
+//-----------------------------------------------------------
+MultiCastPeer::MultiCastPeer(IpAddr const& addr, uint16_t mc_port, int ttl, ICPProcessor * icpPr)
+:Peer(PEER_MULTICAST, icpPr), _mc_ttl(ttl)
+{
+  ats_ip_set(&_mc_ip.sa, addr, htons(mc_port));
+  memset(&this->_mc, 0, sizeof(this->_mc));
+}
+
+int
+MultiCastPeer::GetTTL()
+{
+  return _mc_ttl;
+}
+
+sockaddr *
+MultiCastPeer::GetIP()
+{
+  return &_mc_ip.sa;
+}
+
+Action *
+MultiCastPeer::SendMsg_re(Continuation * cont, void *token, struct msghdr * msg, sockaddr const* to)
+{
+  Action *a;
+
+  if (to) {
+    // Send to MultiCast group member (UniCast)
+    Peer *p = FindMultiCastChild(IpAddr(to), ats_ip_port_host_order(to));
+    ink_assert(p);
+    a = ((ParentSiblingPeer *) p)->SendMsg_re(cont, token, msg, 0);
+  } else {
+    // Send to MultiCast group
+    msg->msg_name = (caddr_t) & _send_chan.addr;
+    msg->msg_namelen = sizeof(_send_chan.addr);
+    a = udpNet.sendmsg_re(cont, token, _send_chan.fd, msg);
+  }
+  return a;
+}
+
+Action *
+MultiCastPeer::RecvFrom_re(Continuation * cont, void *token, IOBufferBlock * /* bufblock ATS_UNUSED */,
+                           int len, struct sockaddr * from, socklen_t *fromlen)
+{
+  Action *a = udpNet.recvfrom_re(cont, token, _recv_chan.fd, from, fromlen, buf, len, true, 0);
+  return a;
+}
+
+int
+MultiCastPeer::GetRecvFD()
+{
+  return _recv_chan.fd;
+}
+
+int
+MultiCastPeer::GetSendFD()
+{
+  return _send_chan.fd;
+}
+
+int
+MultiCastPeer::ExpectedReplies(BitMap * expected_replies_list)
+{
+  // TBD: Expected replies should be calculated as a running average
+  //      from replies returned from a periodic inquiry message.
+
+  int replies = 0;
+  ParentSiblingPeer *p = (ParentSiblingPeer *) this->_next;
+  while (p) {
+    replies += p->ExpectedReplies(expected_replies_list);
+    p = (ParentSiblingPeer *) p->GetNext();
+  }
+  return replies;
+}
+
+int
+MultiCastPeer::ValidSender(sockaddr* sa)
+{
+  // TBD: Use hash function
+  // Make sure sockaddr_in corresponds to a defined peer in the
+  //  MultiCast group.
+  Peer *P = _next;
+  while (P) {
+    if (ats_ip_addr_eq(P->GetIP(), sa) &&
+      (ats_ip_port_cast(P->GetIP()) == ats_ip_port_cast(sa))
+    ) {
+      return 1;
+    } else {
+      P = P->GetNext();
+    }
+  }
+  return 0;
+}
+
+void
+MultiCastPeer::LogSendMsg(ICPMsg_t * m, sockaddr const* sa)
+{
+  // Note: ICPMsg_t (m) is in network byte order
+  if (sa) {
+    // UniCast send on MultiCast interface, only update stats for
+    //  target Peer.
+    //
+    Peer *p;
+    p = FindMultiCastChild(IpAddr(sa), ats_ip_port_host_order(sa));
+    if (p)
+      ((ParentSiblingPeer *) p)->LogSendMsg(m, sa);
+
+  } else {
+    // Note numerous stats on MultiCast peer and each member peer
+    _stats.last_send = ink_get_hrtime();
+    _stats.sent[m->h.opcode]++;
+    _stats.total_sent++;
+
+    Peer *p = _next;
+    while (p) {
+      ((ParentSiblingPeer *) p)->LogSendMsg(m, sa);
+      p = p->GetNext();
+    }
+  }
+}
+
+int
+MultiCastPeer::IsOnline()
+{
+  return (_ICPpr->GetConfig()->globalConfig()->ICPmulticastConfigured());
+}
+
+int
+MultiCastPeer::AddMultiCastChild(Peer * P)
+{
+  // Add (Peer *) to the given MultiCast structure.
+  // Make sure child (ip,port) is unique.
+  sockaddr const* ip = P->GetIP();
+  if (FindMultiCastChild(IpAddr(ip), ats_ip_port_host_order(ip))) {
+    ip_text_buffer x;
+    Warning("bad icp.config, multiple multicast child definitions for ip=%s", ats_ip_ntop(ip, x, sizeof(x)));
+    return 0;                   // Not added, already exists
+  } else {
+    P->SetNext(this->_next);
+    this->_next = P;
+    ++_mc.defined_members;
+    return 1;                   // Added
+  }
+}
+
+Peer *
+MultiCastPeer::FindMultiCastChild(IpAddr const& addr, uint16_t port)
+{
+  // Locate child (Peer *) with the given (ip,port). This is split out
+  // rather than using a sockaddr so we can indicate the port is to not
+  // be checked (@a port == 0).
+  Peer *curP = this->_next;
+  while (curP) {
+    sockaddr const* peer_ip = curP->GetIP();
+    if (addr == peer_ip &&
+      (!port || port == ats_ip_port_host_order(peer_ip))
+    ) {
+      return curP;
+    } else {
+      curP = curP->GetNext();
+    }
+  }
+  return NULL;
+}
+
+//-------------------------------------------------------------------------
+// Class PeriodicCont member functions (abstract base class)
+//      Look for TS ICP configuration changes by periodically looking.
+//-------------------------------------------------------------------------
+typedef int (ICPPeriodicCont::*ICPPeriodicContHandler) (int, void *);
+PeriodicCont::PeriodicCont(ICPProcessor * icpP):Continuation(0), _ICPpr(icpP)
+{
+  mutex = new_ProxyMutex();
+}
+
+PeriodicCont::~PeriodicCont()
+{
+  mutex = 0;
+}
+
+//-----------------------------------------
+// Class ICPPeriodicCont member functions
+//-----------------------------------------
+ICPPeriodicCont::ICPPeriodicCont(ICPProcessor * icpP)
+:PeriodicCont(icpP), _last_icp_config_callouts(0), _global_config_changed(0), _peer_config_changed(0)
+{
+}
+
+int
+ICPPeriodicCont::PeriodicEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  int do_reconfig = 0;
+  ICPConfiguration *C = _ICPpr->GetConfig();
+
+  if (C->GlobalConfigChange())
+    do_reconfig = 1;
+
+  int configcallouts = C->ICPConfigCallouts();
+  if (_last_icp_config_callouts != configcallouts) {
+    // We have a "icp.config" change callout which we
+    //  have not processed.
+    _last_icp_config_callouts = configcallouts;
+    do_reconfig = 1;
+  }
+
+  if (do_reconfig) {
+    //
+    // We have a configuration change, create worker continuation.
+    //
+    ICPPeriodicCont *rc = new ICPPeriodicCont(_ICPpr);
+    SET_CONTINUATION_HANDLER(rc, (ICPPeriodicContHandler) & ICPPeriodicCont::DoReconfigAction);
+    eventProcessor.schedule_imm(rc);
+  }
+  return EVENT_CONT;
+}
+
+int
+ICPPeriodicCont::DoReconfigAction(int event, Event * e)
+{
+  //************************************************************
+  // Initiate reconfiguration action if any global or peer
+  // configuration changes have occured.
+  //************************************************************
+  ICPConfiguration *C = _ICPpr->GetConfig();
+
+  for (;;) {
+    switch (event) {
+    case EVENT_IMMEDIATE:
+    case EVENT_INTERVAL:
+      {
+        ink_assert(!_global_config_changed && !_peer_config_changed);
+        if (C->Lock()) {
+          ICP_INCREMENT_DYN_STAT(reconfig_polls_stat);
+          if (C->GlobalConfigChange()) {
+            _global_config_changed = 1;
+          }
+          //
+          // TS Configuration management makes callouts whenever changes
+          // are made to "icp.config", which describes the ICP peer
+          // configuration.
+          //
+          if (C->PeerConfigChange()) {
+            _peer_config_changed = 1;
+          }
+          if (_global_config_changed || _peer_config_changed) {
+            //
+            // Start the reconfiguration sequence.
+            //
+            ICP_INCREMENT_DYN_STAT(reconfig_events_stat);
+            ICPProcessor::ReconfigState_t NextState;
+
+            NextState =
+              _ICPpr->ReconfigureStateMachine(ICPProcessor::RC_RECONFIG, _global_config_changed, _peer_config_changed);
+            if (NextState == ICPProcessor::RC_DONE) {
+              // Completed all reconfiguration actions.
+              // ReconfigureStateMachine() has invoked C->Unlock()
+              delete this;
+              return EVENT_DONE;
+            } else {
+              // Delay and restart update.
+              _global_config_changed = 0;
+              _peer_config_changed = 0;
+              C->Unlock();
+              e->schedule_in(HRTIME_MSECONDS(RETRY_INTERVAL_MSECS));
+              return EVENT_CONT;
+            }
+
+          } else {
+            // No configuration changes detected.
+            C->Unlock();
+          }
+
+        } else {
+          // Missed lock, retry later
+          e->schedule_in(HRTIME_MSECONDS(RETRY_INTERVAL_MSECS));
+          return EVENT_CONT;
+        }
+        delete this;
+        return EVENT_DONE;
+      }
+    default:
+      {
+        ink_release_assert(!"ICPPeriodicCont::DoReconfigAction() bad event");
+      }
+    }                           // End of switch
+  }                             // End of for
+
+  return EVENT_DONE;
+}
+
+//----------------------------------------------------------------
+// Class ICPlog member functions
+//  Basic accessor object used by the new logging subsystem
+//  for squid access log data for ICP queries.
+//----------------------------------------------------------------
+ink_hrtime ICPlog::GetElapsedTime()
+{
+  return (ink_get_hrtime() - _s->_start_time);
+}
+
+sockaddr const*
+ICPlog::GetClientIP()
+{
+  return &_s->_sender.sa;
+}
+
+in_port_t
+ICPlog::GetClientPort()
+{
+  return _s->_sender.port();
+}
+
+SquidLogCode ICPlog::GetAction()
+{
+  if (_s->_queryResult == CACHE_EVENT_LOOKUP)
+    return SQUID_LOG_UDP_HIT;
+  else
+    return SQUID_LOG_UDP_MISS;
+}
+
+const char *
+ICPlog::GetCode()
+{
+  static const char *const ICPCodeStr = "000";
+  return ICPCodeStr;
+}
+
+int
+ICPlog::GetSize()
+{
+  return ntohs(_s->_rICPmsg->h.msglen);
+}
+
+const char *
+ICPlog::GetMethod()
+{
+  return HTTP_METHOD_ICP_QUERY;
+}
+
+const char *
+ICPlog::GetURI()
+{
+  return (const char *) _s->_rICPmsg->un.query.URL;
+}
+
+const char *
+ICPlog::GetIdent()
+{
+  static const char *const ICPidentStr = "";
+  return ICPidentStr;
+}
+
+SquidHierarchyCode ICPlog::GetHierarchy()
+{
+  return SQUID_HIER_NONE;
+}
+
+const char *
+ICPlog::GetFromHost()
+{
+  static const char *const FromHostStr = "";
+  return FromHostStr;
+}
+
+const char *
+ICPlog::GetContentType()
+{
+  static const char *const ICPcontentTypeStr = "";
+  return ICPcontentTypeStr;
+}
+
+//*****************************************************************************
+// ICP Debug support.
+//*****************************************************************************
+//
+static const char *ICPstatNames[] = {
+  "icp_stat_def",
+  "config_mgmt_callouts_stat",
+  "reconfig_polls_stat",
+  "reconfig_events_stat",
+  "invalid_poll_data_stat",
+  "no_data_read_stat",
+  "short_read_stat",
+  "invalid_sender_stat",
+  "read_not_v2_icp_stat",
+  "icp_remote_query_requests_stat",
+  "icp_remote_responses_stat",
+  "icp_cache_lookup_success_stat",
+  "icp_cache_lookup_fail_stat",
+  "query_response_write_stat",
+  "query_response_partial_write_stat",
+  "no_icp_request_for_response_stat",
+  "icp_response_request_nolock_stat",
+  "icp_start_icpoff_stat",
+  "send_query_partial_write_stat",
+  "icp_queries_no_expected_replies_stat",
+  "icp_query_hits_stat",
+  "icp_query_misses_stat",
+  "invalid_icp_query_response_stat",
+  "icp_query_requests_stat",
+  "total_icp_response_time_stat",
+  "total_udp_send_queries_stat",
+  "total_icp_request_time_stat",
+  "icp_total_reloads",
+  "icp_pending_reloads",
+  "icp_reload_start_aborts",
+  "icp_reload_connect_aborts",
+  "icp_reload_read_aborts",
+  "icp_reload_write_aborts",
+  "icp_reload_successes",
+  "icp_stat_count",
+  ""
+};
+
+void
+dumpICPstatEntry(int i, const char *name)
+{
+  int l = strlen(name);
+  int64_t sval, cval;
+
+  RecRawStat *p = RecGetGlobalRawStatPtr(icp_rsb, i);
+  sval = p->sum;
+  cval = p->count;
+
+  printf("%-32s %12" PRId64 " %16" PRId64 " %17.4f\n", &name[l > 31 ? l - 31 : 0], cval, sval,
+         cval ? (((double) sval) / ((double) cval)) : 0.0);
+}
+
+void
+dumpICPstats()
+{
+  printf("\n");
+  int i;
+  for (i = 0; i < icp_stat_count; ++i) {
+    dumpICPstatEntry(i, ICPstatNames[i]);
+  }
+}
+
+
+void
+ICPProcessor::DumpICPConfig()
+{
+  Peer *P;
+  PeerType_t type;
+  int id;
+  ip_port_text_buffer ipb;
+
+  Debug("icp", "On=%d, MultiCast=%d, Timeout=%d LocalCacheLookup=%d",
+        GetConfig()->globalConfig()->ICPconfigured(),
+        GetConfig()->globalConfig()->ICPmulticastConfigured(),
+        GetConfig()->globalConfig()->ICPqueryTimeout(), GetConfig()->globalConfig()->ICPLocalCacheLookup());
+  Debug("icp", "StaleLookup=%d, ReplyToUnknowPeer=%d, DefaultReplyPort=%d",
+        GetConfig()->globalConfig()->ICPStaleLookup(),
+        GetConfig()->globalConfig()->ICPReplyToUnknownPeer(), GetConfig()->globalConfig()->ICPDefaultReplyPort());
+
+  for (int i = 0; i < (_nPeerList + 1); i++) {
+    P = _PeerList[i];
+    id = P->GetPeerID();
+    type = P->GetType();
+    const char *str_type;
+
+    switch (type) {
+    case PEER_PARENT:
+      {
+        str_type = "P";
+        break;
+      }
+    case PEER_SIBLING:
+      {
+        str_type = "S";
+        break;
+      }
+    case PEER_LOCAL:
+      {
+        str_type = "L";
+        break;
+      }
+    case PEER_MULTICAST:
+      {
+        str_type = "M";
+        break;
+      }
+    default:
+      {
+        str_type = "N";
+        break;
+      }
+    }                           // End of switch
+
+    if (*str_type == 'M') {
+      Debug("icp", "[%d]: Type=%s IP=%s", id, str_type, ats_ip_nptop(P->GetIP(), ipb, sizeof(ipb)));
+    } else {
+      ParentSiblingPeer *Pps = static_cast<ParentSiblingPeer *>(P);
+      Debug("icp",
+            "[%d]: Type=%s IP=%s PPort=%d Host=%s",
+        id, str_type, ats_ip_nptop(P->GetIP(), ipb, sizeof(ipb)),
+        Pps->GetConfig()->GetProxyPort(), Pps->GetConfig()->GetHostname());
+
+      Debug("icp",
+            "[%d]: MC ON=%d MC_IP=%s MC_TTL=%d",
+            id, Pps->GetConfig()->MultiCastMember(),
+        Pps->GetConfig()->GetMultiCastIPAddr().toString(ipb, sizeof(ipb)),
+        Pps->GetConfig()->GetMultiCastTTL());
+    }
+  }
+}
+
+//*****************************************************************************
+
+// End of ICPConfig.cc
diff --git a/proxy/ICPProcessor.cc b/proxy/ICPProcessor.cc
new file mode 100644
index 00000000..b12777fd
--- /dev/null
+++ b/proxy/ICPProcessor.cc
@@ -0,0 +1,59 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  ICPProcessor.cc
+
+
+****************************************************************************/
+
+#include "ICP.h"
+#include "ICPProcessor.h"
+
+//**************************************************************
+//  Wrapper Class to hide the true internals of ICPProcessor.
+//  Used only for external access.
+//**************************************************************
+ICPProcessorExt::ICPProcessorExt(ICPProcessor * icpPr):_ICPpr(icpPr)
+{
+}
+
+ICPProcessorExt::~ICPProcessorExt()
+{
+}
+
+void
+ICPProcessorExt::start()
+{
+  _ICPpr->start();
+}
+
+
+Action *
+ICPProcessorExt::ICPQuery(Continuation * c, URL * url)
+{
+  return _ICPpr->ICPQuery(c, url);
+}
+
+// End of ICPProcessor.cc
diff --git a/proxy/ICPProcessor.h b/proxy/ICPProcessor.h
new file mode 100644
index 00000000..d2ff4704
--- /dev/null
+++ b/proxy/ICPProcessor.h
@@ -0,0 +1,80 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ICPProcessor.h
+
+
+****************************************************************************/
+
+#ifndef _ICPProcessor_h_
+#define _ICPProcessor_h_
+#include "P_EventSystem.h"
+#include "URL.h"
+#include "ICPevents.h"
+
+//######################################################
+// State definitions for "proxy.config.icp.enabled"
+//######################################################
+#define ICP_MODE_OFF                    0
+#define ICP_MODE_RECEIVE_ONLY           1
+#define ICP_MODE_SEND_RECEIVE           2
+
+extern void initialize_thread_for_icp(EThread * e);
+class ICPProcessor;
+
+//***************************************************************************
+// External Interface to ICP
+//   Calling Sequence:
+//   =================
+//      void     icpProcessor.start()
+//        Returns:
+//          None.
+//
+//      Action * icpProcessor.ICPQuery(Continuation *, URL *)
+//        Returns:
+//          Invokes continuation handleEvent(ICPreturn_t, struct sockaddr_in *)
+//          where ICPreturn_t is ICP_LOOKUP_FOUND or ICP_LOOKUP_FAILED and
+//          struct sockaddr_in (ip,port) is host containing URL data.
+//***************************************************************************
+class ICPProcessorExt
+{
+public:
+  ICPProcessorExt(ICPProcessor *);
+  ~ICPProcessorExt();
+
+  // Exported interfaces
+  void start();
+  Action *ICPQuery(Continuation *, URL *);
+
+private:
+    ICPProcessor * _ICPpr;
+};
+
+extern ICPProcessorExt icpProcessor;
+
+// End of ICPProcessor.h
+
+#endif // _ICPProcessor_h_
diff --git a/proxy/ICPStats.cc b/proxy/ICPStats.cc
new file mode 100644
index 00000000..9cb370bb
--- /dev/null
+++ b/proxy/ICPStats.cc
@@ -0,0 +1,125 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  ICPStats.cc
+
+
+****************************************************************************/
+
+#include "Main.h"
+#include "P_EventSystem.h"
+#include "P_Cache.h"
+#include "P_RecProcess.h"
+#include "ICP.h"
+
+struct RecRawStatBlock *icp_rsb;
+
+void
+ICPProcessor::InitICPStatCallbacks()
+{
+  icp_rsb = RecAllocateRawStatBlock((int) icp_stat_count);
+
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.config_mgmt_callouts",
+                     RECD_INT, RECP_PERSISTENT, (int) config_mgmt_callouts_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.reconfig_polls",
+                     RECD_INT, RECP_PERSISTENT, (int) reconfig_polls_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.reconfig_events",
+                     RECD_INT, RECP_PERSISTENT, (int) reconfig_events_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.invalid_poll_data",
+                     RECD_INT, RECP_PERSISTENT, (int) invalid_poll_data_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.no_data_read",
+                     RECD_INT, RECP_PERSISTENT, (int) no_data_read_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.short_read", RECD_INT, RECP_PERSISTENT, (int) short_read_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.invalid_sender",
+                     RECD_INT, RECP_PERSISTENT, (int) invalid_sender_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.read_not_v2_icp",
+                     RECD_INT, RECP_PERSISTENT, (int) read_not_v2_icp_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_remote_query_requests",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_remote_query_requests_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_remote_responses",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_remote_responses_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.cache_lookup_success",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_cache_lookup_success_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.cache_lookup_fail",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_cache_lookup_fail_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.query_response_write",
+                     RECD_INT, RECP_PERSISTENT, (int) query_response_write_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.query_response_partial_write",
+                     RECD_INT, RECP_PERSISTENT, (int) query_response_partial_write_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.no_icp_request_for_response",
+                     RECD_INT, RECP_PERSISTENT, (int) no_icp_request_for_response_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_response_request_nolock",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_response_request_nolock_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_start_icpoff",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_start_icpoff_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.send_query_partial_write",
+                     RECD_INT, RECP_PERSISTENT, (int) send_query_partial_write_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_queries_no_expected_replies",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_queries_no_expected_replies_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_query_hits",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_query_hits_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_query_misses",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_query_misses_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.invalid_icp_query_response",
+                     RECD_INT, RECP_PERSISTENT, (int) invalid_icp_query_response_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.icp_query_requests",
+                     RECD_INT, RECP_PERSISTENT, (int) icp_query_requests_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.total_icp_response_time",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) total_icp_response_time_stat, RecRawStatSyncMHrTimeAvg);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.total_udp_send_queries",
+                     RECD_INT, RECP_PERSISTENT, (int) total_udp_send_queries_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(icp_rsb, RECT_PROCESS,
+                     "proxy.process.icp.total_icp_request_time",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) total_icp_request_time_stat, RecRawStatSyncMHrTimeAvg);
+
+}
+
+// End of ICPStats.cc
diff --git a/proxy/ICPevents.h b/proxy/ICPevents.h
new file mode 100644
index 00000000..7eab7c6a
--- /dev/null
+++ b/proxy/ICPevents.h
@@ -0,0 +1,43 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ICPEvents_h_
+#define _ICPEvents_h_
+
+#include "I_EventSystem.h"
+
+/** Events specific to ICP. */
+typedef enum
+{
+  ICP_LOOKUP_FOUND = ICP_EVENT_EVENTS_START + 0,
+  ICP_LOOKUP_FAILED = ICP_EVENT_EVENTS_START + 1,
+  ICP_RESPONSE_MESSAGE = ICP_EVENT_EVENTS_START + 2,
+
+  /////////////////////////////////////////////////////
+  // Events specific to object freshness check
+  /////////////////////////////////////////////////////
+  ICP_STALE_OBJECT = ICP_EVENT_EVENTS_START + 10,
+  ICP_FRESH_OBJECT = ICP_EVENT_EVENTS_START + 11
+} ICPreturn_t;
+
+#endif // _ICPevents_h_
diff --git a/proxy/ICPlog.h b/proxy/ICPlog.h
new file mode 100644
index 00000000..f7f37e9e
--- /dev/null
+++ b/proxy/ICPlog.h
@@ -0,0 +1,72 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+/****************************************************************************
+
+  ICPlog.h
+
+
+****************************************************************************/
+
+#ifndef _ICPlog_h_
+#define _ICPlog_h_
+
+#include "HTTP.h"
+
+//
+// Logging object which encapsulates ICP query info required
+// by the new logging subsystem to produce squid access log
+// data for ICP queries.
+//
+class ICPlog
+{
+public:
+  inline ICPlog(ICPPeerReadCont::PeerReadData * s)
+  {
+    _s = s;
+  }
+   ~ICPlog()
+  {
+  }
+  ink_hrtime GetElapsedTime();
+  sockaddr const* GetClientIP();
+  in_port_t GetClientPort();
+  SquidLogCode GetAction();
+  const char *GetCode();
+  int GetSize();
+  const char *GetMethod();
+  const char *GetURI();
+  const char *GetIdent();
+  SquidHierarchyCode GetHierarchy();
+  const char *GetFromHost();
+  const char *GetContentType();
+
+private:
+  ICPPeerReadCont::PeerReadData * _s;
+};
+
+// End of ICPlog.h
+
+#endif // _ICPlog_h_
diff --git a/proxy/IPAllow.cc b/proxy/IPAllow.cc
new file mode 100644
index 00000000..25252e6c
--- /dev/null
+++ b/proxy/IPAllow.cc
@@ -0,0 +1,324 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  IPAllow.cc - Implementation to IP Access Control systtem
+ *
+ *
+ ****************************************************************************/
+
+#include "libts.h"
+#include "Main.h"
+#include "IPAllow.h"
+#include "ProxyConfig.h"
+#include "StatSystem.h"
+#include "P_EventSystem.h"
+#include "P_Cache.h"
+#include "hdrs/HdrToken.h"
+
+#include <sstream>
+
+enum AclOp {
+  ACL_OP_ALLOW, ///< Allow access.
+  ACL_OP_DENY, ///< Deny access.
+};
+
+const AclRecord IpAllow::ALL_METHOD_ACL(AclRecord::ALL_METHOD_MASK);
+
+int IpAllow::configid = 0;
+
+static ConfigUpdateHandler<IpAllow> * ipAllowUpdate;
+
+//
+//   Begin API functions
+//
+void
+IpAllow::startup()
+{
+  // Should not have been initialized before
+  ink_assert(IpAllow::configid == 0);
+
+  ipAllowUpdate = new ConfigUpdateHandler<IpAllow>();
+  ipAllowUpdate->attach("proxy.config.cache.ip_allow.filename");
+
+  reconfigure();
+}
+
+void
+IpAllow::reconfigure()
+{
+  self *new_table;
+
+  Note("ip_allow.config updated, reloading");
+
+  new_table = new self("proxy.config.cache.ip_allow.filename", "IpAllow", "ip_allow");
+  new_table->BuildTable();
+
+  configid = configProcessor.set(configid, new_table);
+}
+
+IpAllow *
+IpAllow::acquire()
+{
+  return (IpAllow *)configProcessor.get(configid);
+}
+
+void
+IpAllow::release(IpAllow * lookup)
+{
+  configProcessor.release(configid, lookup);
+}
+
+//
+//   End API functions
+//
+
+
+IpAllow::IpAllow(
+  const char *config_var,
+  const char *name,
+  const char *action_val
+) : module_name(name),
+    action(action_val)
+{
+  xptr<char> config_path(RecConfigReadConfigPath(config_var));
+
+  config_file_path[0] = '\0';
+  ink_release_assert(config_path);
+
+  ink_strlcpy(config_file_path, config_path, sizeof(config_file_path));
+}
+
+IpAllow::~IpAllow()
+{
+}
+
+void
+IpAllow::Print() {
+  std::ostringstream s;
+  s << _map.getCount() << " ACL entries";
+  s << '.';
+  for ( IpMap::iterator spot(_map.begin()), limit(_map.end())
+      ; spot != limit
+      ; ++spot
+  ) {
+    char text[INET6_ADDRSTRLEN];
+    AclRecord const* ar = static_cast<AclRecord const*>(spot->data());
+
+    s << std::endl << "  Line " << ar->_src_line << ": "
+      << ats_ip_ntop(spot->min(), text, sizeof text)
+      ;
+    if (0 != ats_ip_addr_cmp(spot->min(), spot->max())) {
+      s << " - " << ats_ip_ntop(spot->max(), text, sizeof text);
+    }
+    s << " method=";
+    uint32_t mask = AclRecord::ALL_METHOD_MASK & ar->_method_mask;
+    if (AclRecord::ALL_METHOD_MASK == mask) {
+      s << "ALL";
+    } else if (0 == mask) {
+      s << "NONE";
+    } else {
+      bool leader = false; // need leading vbar?
+      uint32_t test_mask = 1; // mask for current method.
+      for ( int i = 0 ; i < HTTP_WKSIDX_METHODS_CNT ; ++i, test_mask<<=1 ) {
+        if (mask & test_mask) {
+          if (leader)
+            s << '|';
+          s << hdrtoken_index_to_wks(i + HTTP_WKSIDX_CONNECT);
+          leader = true;
+        }
+      }
+    }
+    if (!ar->_nonstandard_methods.empty()) {
+      s << " nonstandard method=";
+      bool leader = false; // need leading vbar?
+      for (AclRecord::MethodSet::iterator iter = ar->_nonstandard_methods.begin(),
+             end = ar->_nonstandard_methods.end(); iter != end; ++iter) {
+        if (leader) {
+          s << '|';
+        }
+        s << *iter;
+        leader = true;
+      }
+    }
+  }
+  Debug("ip-allow", "%s", s.str().c_str());
+}
+
+int
+IpAllow::BuildTable()
+{
+  char *tok_state = NULL;
+  char *line = NULL;
+  const char *errPtr = NULL;
+  char errBuf[1024];
+  char *file_buf = NULL;
+  int line_num = 0;
+  IpEndpoint addr1;
+  IpEndpoint addr2;
+  matcher_line line_info;
+  bool alarmAlready = false;
+
+  // Table should be empty
+  ink_assert(_map.getCount() == 0);
+
+  file_buf = readIntoBuffer(config_file_path, module_name, NULL);
+
+  if (file_buf == NULL) {
+    Warning("%s Failed to read %s. All IP Addresses will be blocked", module_name, config_file_path);
+    return 1;
+  }
+
+  line = tokLine(file_buf, &tok_state);
+  while (line != NULL) {
+
+    ++line_num;
+
+    // skip all blank spaces at beginning of line
+    while (*line && isspace(*line)) {
+      line++;
+    }
+
+    if (*line != '\0' && *line != '#') {
+
+      errPtr = parseConfigLine(line, &line_info, &ip_allow_tags);
+
+      if (errPtr != NULL) {
+        snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : %s",
+                 module_name, config_file_path, line_num, errPtr);
+        SignalError(errBuf, alarmAlready);
+      } else {
+
+        ink_assert(line_info.type == MATCH_IP);
+
+        errPtr = ExtractIpRange(line_info.line[1][line_info.dest_entry], &addr1.sa, &addr2.sa);
+
+        if (errPtr != NULL) {
+          snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : %s",
+                   module_name, config_file_path, line_num, errPtr);
+          SignalError(errBuf, alarmAlready);
+        } else {
+          // INKqa05845
+          // Search for "action=ip_allow method=PURGE method=GET ..." or "action=ip_deny method=PURGE method=GET ...".
+          char *label, *val;
+          uint32_t acl_method_mask = 0;
+          AclRecord::MethodSet nonstandard_methods;
+          bool deny_nonstandard_methods = false;
+          AclOp op = ACL_OP_DENY; // "shut up", I explained to the compiler.
+          bool op_found = false, method_found = false;
+          for (int i = 0; i < MATCHER_MAX_TOKENS; i++) {
+            label = line_info.line[0][i];
+            val = line_info.line[1][i];
+            if (label == NULL) {
+              continue;
+            }
+            if (strcasecmp(label, "action") == 0) {
+              if (strcasecmp(val, "ip_allow") == 0) {
+                op_found = true, op = ACL_OP_ALLOW;
+              } else if (strcasecmp(val, "ip_deny") == 0) {
+                op_found = true, op = ACL_OP_DENY;
+              }
+            }
+          }
+          if (op_found) {
+            // Loop again for methods, (in case action= appears after method=)
+            for (int i = 0; i < MATCHER_MAX_TOKENS; i++) {
+              label = line_info.line[0][i];
+              val = line_info.line[1][i];
+              if (label == NULL) {
+                continue;
+              }
+              if (strcasecmp(label, "method") == 0) {
+                char *method_name, *sep_ptr = 0;
+                // Parse method="GET|HEAD"
+                for (method_name = strtok_r(val, "|", &sep_ptr); method_name != NULL; method_name = strtok_r(NULL, "|", &sep_ptr)) {
+                  if (strcasecmp(method_name, "ALL") == 0) {
+                    method_found = false;  // in case someone does method=GET|ALL
+                    break;
+                  } else {
+                    int method_name_len = strlen(method_name);
+                    int method_idx = hdrtoken_tokenize(method_name, method_name_len);
+                    if (method_idx < HTTP_WKSIDX_CONNECT || method_idx >= HTTP_WKSIDX_CONNECT + HTTP_WKSIDX_METHODS_CNT) {
+                      nonstandard_methods.insert(method_name);
+                      Debug("ip-allow", "Found nonstandard method [%s] on line %d", method_name, line_num);
+                    } else { // valid method.
+                      acl_method_mask |= AclRecord::MethodIdxToMask(method_idx);
+                    }
+                    method_found = true;
+                  }
+                }
+              }
+            }
+            // If method not specified, default to ALL
+            if (!method_found) {
+              method_found = true;
+              acl_method_mask = AclRecord::ALL_METHOD_MASK;
+              nonstandard_methods.clear();
+            }
+            // When deny, use bitwise complement.  (Make the rule 'allow for all
+            // methods except those specified')
+            if (op == ACL_OP_DENY) {
+              acl_method_mask = AclRecord::ALL_METHOD_MASK & ~acl_method_mask;
+              deny_nonstandard_methods = true;
+            }
+          }
+
+          if (method_found) {
+            _acls.push_back(AclRecord(acl_method_mask, line_num, nonstandard_methods, deny_nonstandard_methods));
+            // Color with index because at this point the address
+            // is volatile.
+            _map.fill(
+              &addr1, &addr2,
+              reinterpret_cast<void*>(_acls.length()-1)
+            );
+          } else {
+            snprintf(errBuf, sizeof(errBuf), "%s discarding %s entry at line %d : %s", module_name, config_file_path, line_num, "Invalid action/method specified");        //changed by YTS Team, yamsat bug id -59022
+            SignalError(errBuf, alarmAlready);
+          }
+        }
+      }
+    }
+
+    line = tokLine(NULL, &tok_state);
+  }
+
+  if (_map.getCount() == 0) {
+    Warning("%s No entries in %s. All IP Addresses will be blocked", module_name, config_file_path);
+  } else {
+    // convert the coloring from indices to pointers.
+    for ( IpMap::iterator spot(_map.begin()), limit(_map.end())
+        ; spot != limit
+        ; ++spot
+    ) {
+      spot->setData(&_acls[reinterpret_cast<size_t>(spot->data())]);
+    }
+  }
+
+  if (is_debug_tag_set("ip-allow")) {
+    Print();
+  }
+
+  ats_free(file_buf);
+  return 0;
+}
diff --git a/proxy/IPAllow.h b/proxy/IPAllow.h
new file mode 100644
index 00000000..695d3510
--- /dev/null
+++ b/proxy/IPAllow.h
@@ -0,0 +1,150 @@
+/** @file
+
+  Access control by IP address and HTTP method.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  IPAllow.h - Interface to IP Access Control systtem
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _IP_ALLOW_H_
+#define _IP_ALLOW_H_
+
+#include "Main.h"
+#include "hdrs/HTTP.h"
+#include "ts/IpMap.h"
+#include "ts/Vec.h"
+#include "ProxyConfig.h"
+
+#include <string>
+#include <set>
+
+// forward declare in name only so it can be a friend.
+struct IpAllowUpdate;
+
+//
+// Timeout the IpAllowTable * this amount of time after the
+//    a reconfig event happens that the old table gets thrown
+//    away
+//
+static uint64_t const IP_ALLOW_TIMEOUT = HRTIME_HOUR;
+
+/** An access control record.
+    It has the methods permitted and the source line.
+*/
+struct AclRecord {
+  uint32_t _method_mask;
+  int _src_line;
+  typedef std::set<std::string> MethodSet;
+  MethodSet _nonstandard_methods;
+  bool _deny_nonstandard_methods;
+  static const uint32_t ALL_METHOD_MASK = ~0; // Mask for all methods.
+
+  /// Default constructor.
+  /// Present only to make Vec<> happy, do not use.
+  AclRecord() : _method_mask(0), _src_line(0), _deny_nonstandard_methods(false) { }
+
+  AclRecord(uint32_t method_mask) : _method_mask(method_mask), _src_line(0),
+                                    _deny_nonstandard_methods(false) { }
+
+  AclRecord(uint32_t method_mask, int ln, const MethodSet &nonstandard_methods, bool deny_nonstandard_methods)
+    : _method_mask(method_mask), _src_line(ln), _nonstandard_methods(nonstandard_methods),
+      _deny_nonstandard_methods(deny_nonstandard_methods) { }
+
+  static uint32_t MethodIdxToMask(int wksidx) { return 1 << (wksidx - HTTP_WKSIDX_CONNECT); }
+
+  bool isEmpty() const {
+    return (_method_mask == 0) && _nonstandard_methods.empty();
+  }
+
+  bool isMethodAllowed(int method_wksidx) const {
+    return _method_mask & MethodIdxToMask(method_wksidx);
+  }
+  
+  bool isNonstandardMethodAllowed(const std::string &method_str) const {
+    if (_method_mask == ALL_METHOD_MASK) {
+      return true;
+    }
+    bool method_in_set = _nonstandard_methods.count(method_str);
+    return _deny_nonstandard_methods ? !method_in_set : method_in_set;
+  }
+};
+
+/** Singleton class for access controls.
+ */
+class IpAllow : public ConfigInfo
+{
+  friend int main(int, char**);
+  friend struct IpAllowUpdate;
+
+public:
+  typedef IpAllow self; ///< Self reference type.
+
+  IpAllow(const char *config_var, const char *name, const char *action_val);
+   ~IpAllow();
+  void Print();
+  AclRecord *match(IpEndpoint const* ip) const;
+  AclRecord *match(sockaddr const* ip) const;
+
+  static void startup();
+  static void reconfigure();
+  /// @return The global instance.
+  static IpAllow * acquire();
+  static void release(IpAllow * params);
+
+  /// @return A mask that permits all methods.
+  static const AclRecord *AllMethodAcl() {
+    return &ALL_METHOD_ACL;
+  }
+
+  typedef ConfigProcessor::scoped_config<IpAllow, IpAllow> scoped_config;
+
+private:
+  static int configid;
+  static const AclRecord ALL_METHOD_ACL;
+
+  int BuildTable();
+
+  char config_file_path[PATH_NAME_MAX];
+  const char *module_name;
+  const char *action;
+  IpMap _map;
+  Vec<AclRecord> _acls;
+};
+
+inline AclRecord *
+IpAllow::match(IpEndpoint const* ip) const {
+  return this->match(&ip->sa);
+}
+
+inline AclRecord *
+IpAllow::match(sockaddr const* ip) const {
+  void *raw;
+  if (_map.contains(ip, &raw)) {
+    return static_cast<AclRecord*>(raw);
+  }
+  return NULL;
+}
+
+#endif
diff --git a/proxy/InkAPI-ensure-funcs-present.pl b/proxy/InkAPI-ensure-funcs-present.pl
new file mode 100644
index 00000000..fd02dc92
--- /dev/null
+++ b/proxy/InkAPI-ensure-funcs-present.pl
@@ -0,0 +1,49 @@
+#!/usr/local/bin/perl
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+$| = 1;
+
+if ($#ARGV != 1)
+{
+    die "usage: $0 InkAPI-h-file InkAPI-cc-file\n";
+}
+
+$hfile = $ARGV[0];
+$ccfile = $ARGV[1];
+
+open(IN,$hfile) || die "can't open '$hfile' for input\n";
+
+while ($line = <IN>)
+{
+    @result = ($line =~ /inkapi.*(INK[^\( ]+).*\(/);
+    if (@result == 1) { push(@funcs,$result[0]); }
+}
+
+foreach $func (@funcs)
+{
+    $result = `grep $func $ccfile`;
+    if ($result eq "")
+    { printf("MISSING #### $func ####\n"); }
+    else
+    { printf("        #### $func ####\n"); }
+    print $result;
+}
+
+	
+	
diff --git a/proxy/InkAPI.cc b/proxy/InkAPI.cc
new file mode 100644
index 00000000..00501b26
--- /dev/null
+++ b/proxy/InkAPI.cc
@@ -0,0 +1,8593 @@
+/** @file
+
+  Implements callin functions for TSAPI plugins.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+
+#include "libts.h"
+#include "I_Layout.h"
+
+#include "ts.h"
+#include "InkAPIInternal.h"
+#include "Log.h"
+#include "URL.h"
+#include "MIME.h"
+#include "HTTP.h"
+#include "HttpClientSession.h"
+#include "HttpServerSession.h"
+#include "HttpSM.h"
+#include "HttpConfig.h"
+#include "P_Net.h"
+#include "P_UDPNet.h"
+#include "P_HostDB.h"
+#include "StatSystem.h"
+#include "P_Cache.h"
+#include "I_RecCore.h"
+#include "I_RecSignals.h"
+#include "ProxyConfig.h"
+#include "Plugin.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+//#include "UserNameCache.h"
+#include "PluginVC.h"
+#include "api/ts/experimental.h"
+#include "ICP.h"
+#include "HttpSessionAccept.h"
+#include "PluginVC.h"
+#include "FetchSM.h"
+#include "HttpDebugNames.h"
+#include "I_AIO.h"
+#include "I_Tasks.h"
+
+#include "I_RecDefs.h"
+#include "I_RecCore.h"
+#include "HttpProxyServerMain.h"
+
+
+/****************************************************************
+ *  IMPORTANT - READ ME
+ * Any plugin using the IO Core must enter
+ *   with a held mutex.  SDK 1.0, 1.1 & 2.0 did not
+ *   have this restriction so we need to add a mutex
+ *   to Plugin's Continuation if it trys to use the IOCore
+ * Not only does the plugin have to have a mutex
+ *   before entering the IO Core.  The mutex needs to be held.
+ *   We now take out the mutex on each call to ensure it is
+ *   held for the entire duration of the IOCore call
+ ***************************************************************/
+
+// helper macro for setting HTTPHdr data
+#define SET_HTTP_HDR(_HDR, _BUF_PTR, _OBJ_PTR) \
+    _HDR.m_heap = ((HdrHeapSDKHandle*) _BUF_PTR)->m_heap; \
+    _HDR.m_http = (HTTPHdrImpl*) _OBJ_PTR; \
+    _HDR.m_mime = _HDR.m_http->m_fields_impl;
+
+// Globals for new librecords stats
+volatile int top_stat = 0;
+RecRawStatBlock *api_rsb;
+
+// Library init functions needed for API.
+extern void ts_session_protocol_well_known_name_indices_init();
+
+// Globals for the Sessions/Transaction index registry
+volatile int next_argv_index = 0;
+
+struct _STATE_ARG_TABLE {
+  char* name;
+  size_t name_len;
+  char* description;
+} state_arg_table[HTTP_SSN_TXN_MAX_USER_ARG];
+
+
+/* URL schemes */
+tsapi const char *TS_URL_SCHEME_FILE;
+tsapi const char *TS_URL_SCHEME_FTP;
+tsapi const char *TS_URL_SCHEME_GOPHER;
+tsapi const char *TS_URL_SCHEME_HTTP;
+tsapi const char *TS_URL_SCHEME_HTTPS;
+tsapi const char *TS_URL_SCHEME_MAILTO;
+tsapi const char *TS_URL_SCHEME_NEWS;
+tsapi const char *TS_URL_SCHEME_NNTP;
+tsapi const char *TS_URL_SCHEME_PROSPERO;
+tsapi const char *TS_URL_SCHEME_TELNET;
+tsapi const char *TS_URL_SCHEME_TUNNEL;
+tsapi const char *TS_URL_SCHEME_WAIS;
+tsapi const char *TS_URL_SCHEME_PNM;
+tsapi const char *TS_URL_SCHEME_RTSP;
+tsapi const char *TS_URL_SCHEME_RTSPU;
+tsapi const char *TS_URL_SCHEME_MMS;
+tsapi const char *TS_URL_SCHEME_MMSU;
+tsapi const char *TS_URL_SCHEME_MMST;
+
+/* URL schemes string lengths */
+tsapi int TS_URL_LEN_FILE;
+tsapi int TS_URL_LEN_FTP;
+tsapi int TS_URL_LEN_GOPHER;
+tsapi int TS_URL_LEN_HTTP;
+tsapi int TS_URL_LEN_HTTPS;
+tsapi int TS_URL_LEN_MAILTO;
+tsapi int TS_URL_LEN_NEWS;
+tsapi int TS_URL_LEN_NNTP;
+tsapi int TS_URL_LEN_PROSPERO;
+tsapi int TS_URL_LEN_TELNET;
+tsapi int TS_URL_LEN_TUNNEL;
+tsapi int TS_URL_LEN_WAIS;
+tsapi int TS_URL_LEN_PNM;
+tsapi int TS_URL_LEN_RTSP;
+tsapi int TS_URL_LEN_RTSPU;
+tsapi int TS_URL_LEN_MMS;
+tsapi int TS_URL_LEN_MMSU;
+tsapi int TS_URL_LEN_MMST;
+
+/* MIME fields */
+tsapi const char *TS_MIME_FIELD_ACCEPT;
+tsapi const char *TS_MIME_FIELD_ACCEPT_CHARSET;
+tsapi const char *TS_MIME_FIELD_ACCEPT_ENCODING;
+tsapi const char *TS_MIME_FIELD_ACCEPT_LANGUAGE;
+tsapi const char *TS_MIME_FIELD_ACCEPT_RANGES;
+tsapi const char *TS_MIME_FIELD_AGE;
+tsapi const char *TS_MIME_FIELD_ALLOW;
+tsapi const char *TS_MIME_FIELD_APPROVED;
+tsapi const char *TS_MIME_FIELD_AUTHORIZATION;
+tsapi const char *TS_MIME_FIELD_BYTES;
+tsapi const char *TS_MIME_FIELD_CACHE_CONTROL;
+tsapi const char *TS_MIME_FIELD_CLIENT_IP;
+tsapi const char *TS_MIME_FIELD_CONNECTION;
+tsapi const char *TS_MIME_FIELD_CONTENT_BASE;
+tsapi const char *TS_MIME_FIELD_CONTENT_ENCODING;
+tsapi const char *TS_MIME_FIELD_CONTENT_LANGUAGE;
+tsapi const char *TS_MIME_FIELD_CONTENT_LENGTH;
+tsapi const char *TS_MIME_FIELD_CONTENT_LOCATION;
+tsapi const char *TS_MIME_FIELD_CONTENT_MD5;
+tsapi const char *TS_MIME_FIELD_CONTENT_RANGE;
+tsapi const char *TS_MIME_FIELD_CONTENT_TYPE;
+tsapi const char *TS_MIME_FIELD_CONTROL;
+tsapi const char *TS_MIME_FIELD_COOKIE;
+tsapi const char *TS_MIME_FIELD_DATE;
+tsapi const char *TS_MIME_FIELD_DISTRIBUTION;
+tsapi const char *TS_MIME_FIELD_ETAG;
+tsapi const char *TS_MIME_FIELD_EXPECT;
+tsapi const char *TS_MIME_FIELD_EXPIRES;
+tsapi const char *TS_MIME_FIELD_FOLLOWUP_TO;
+tsapi const char *TS_MIME_FIELD_FROM;
+tsapi const char *TS_MIME_FIELD_HOST;
+tsapi const char *TS_MIME_FIELD_IF_MATCH;
+tsapi const char *TS_MIME_FIELD_IF_MODIFIED_SINCE;
+tsapi const char *TS_MIME_FIELD_IF_NONE_MATCH;
+tsapi const char *TS_MIME_FIELD_IF_RANGE;
+tsapi const char *TS_MIME_FIELD_IF_UNMODIFIED_SINCE;
+tsapi const char *TS_MIME_FIELD_KEEP_ALIVE;
+tsapi const char *TS_MIME_FIELD_KEYWORDS;
+tsapi const char *TS_MIME_FIELD_LAST_MODIFIED;
+tsapi const char *TS_MIME_FIELD_LINES;
+tsapi const char *TS_MIME_FIELD_LOCATION;
+tsapi const char *TS_MIME_FIELD_MAX_FORWARDS;
+tsapi const char *TS_MIME_FIELD_MESSAGE_ID;
+tsapi const char *TS_MIME_FIELD_NEWSGROUPS;
+tsapi const char *TS_MIME_FIELD_ORGANIZATION;
+tsapi const char *TS_MIME_FIELD_PATH;
+tsapi const char *TS_MIME_FIELD_PRAGMA;
+tsapi const char *TS_MIME_FIELD_PROXY_AUTHENTICATE;
+tsapi const char *TS_MIME_FIELD_PROXY_AUTHORIZATION;
+tsapi const char *TS_MIME_FIELD_PROXY_CONNECTION;
+tsapi const char *TS_MIME_FIELD_PUBLIC;
+tsapi const char *TS_MIME_FIELD_RANGE;
+tsapi const char *TS_MIME_FIELD_REFERENCES;
+tsapi const char *TS_MIME_FIELD_REFERER;
+tsapi const char *TS_MIME_FIELD_REPLY_TO;
+tsapi const char *TS_MIME_FIELD_RETRY_AFTER;
+tsapi const char *TS_MIME_FIELD_SENDER;
+tsapi const char *TS_MIME_FIELD_SERVER;
+tsapi const char *TS_MIME_FIELD_SET_COOKIE;
+tsapi const char *TS_MIME_FIELD_STRICT_TRANSPORT_SECURITY;
+tsapi const char *TS_MIME_FIELD_SUBJECT;
+tsapi const char *TS_MIME_FIELD_SUMMARY;
+tsapi const char *TS_MIME_FIELD_TE;
+tsapi const char *TS_MIME_FIELD_TRANSFER_ENCODING;
+tsapi const char *TS_MIME_FIELD_UPGRADE;
+tsapi const char *TS_MIME_FIELD_USER_AGENT;
+tsapi const char *TS_MIME_FIELD_VARY;
+tsapi const char *TS_MIME_FIELD_VIA;
+tsapi const char *TS_MIME_FIELD_WARNING;
+tsapi const char *TS_MIME_FIELD_WWW_AUTHENTICATE;
+tsapi const char *TS_MIME_FIELD_XREF;
+tsapi const char *TS_MIME_FIELD_X_FORWARDED_FOR;
+
+/* MIME fields string lengths */
+tsapi int TS_MIME_LEN_ACCEPT;
+tsapi int TS_MIME_LEN_ACCEPT_CHARSET;
+tsapi int TS_MIME_LEN_ACCEPT_ENCODING;
+tsapi int TS_MIME_LEN_ACCEPT_LANGUAGE;
+tsapi int TS_MIME_LEN_ACCEPT_RANGES;
+tsapi int TS_MIME_LEN_AGE;
+tsapi int TS_MIME_LEN_ALLOW;
+tsapi int TS_MIME_LEN_APPROVED;
+tsapi int TS_MIME_LEN_AUTHORIZATION;
+tsapi int TS_MIME_LEN_BYTES;
+tsapi int TS_MIME_LEN_CACHE_CONTROL;
+tsapi int TS_MIME_LEN_CLIENT_IP;
+tsapi int TS_MIME_LEN_CONNECTION;
+tsapi int TS_MIME_LEN_CONTENT_BASE;
+tsapi int TS_MIME_LEN_CONTENT_ENCODING;
+tsapi int TS_MIME_LEN_CONTENT_LANGUAGE;
+tsapi int TS_MIME_LEN_CONTENT_LENGTH;
+tsapi int TS_MIME_LEN_CONTENT_LOCATION;
+tsapi int TS_MIME_LEN_CONTENT_MD5;
+tsapi int TS_MIME_LEN_CONTENT_RANGE;
+tsapi int TS_MIME_LEN_CONTENT_TYPE;
+tsapi int TS_MIME_LEN_CONTROL;
+tsapi int TS_MIME_LEN_COOKIE;
+tsapi int TS_MIME_LEN_DATE;
+tsapi int TS_MIME_LEN_DISTRIBUTION;
+tsapi int TS_MIME_LEN_ETAG;
+tsapi int TS_MIME_LEN_EXPECT;
+tsapi int TS_MIME_LEN_EXPIRES;
+tsapi int TS_MIME_LEN_FOLLOWUP_TO;
+tsapi int TS_MIME_LEN_FROM;
+tsapi int TS_MIME_LEN_HOST;
+tsapi int TS_MIME_LEN_IF_MATCH;
+tsapi int TS_MIME_LEN_IF_MODIFIED_SINCE;
+tsapi int TS_MIME_LEN_IF_NONE_MATCH;
+tsapi int TS_MIME_LEN_IF_RANGE;
+tsapi int TS_MIME_LEN_IF_UNMODIFIED_SINCE;
+tsapi int TS_MIME_LEN_KEEP_ALIVE;
+tsapi int TS_MIME_LEN_KEYWORDS;
+tsapi int TS_MIME_LEN_LAST_MODIFIED;
+tsapi int TS_MIME_LEN_LINES;
+tsapi int TS_MIME_LEN_LOCATION;
+tsapi int TS_MIME_LEN_MAX_FORWARDS;
+tsapi int TS_MIME_LEN_MESSAGE_ID;
+tsapi int TS_MIME_LEN_NEWSGROUPS;
+tsapi int TS_MIME_LEN_ORGANIZATION;
+tsapi int TS_MIME_LEN_PATH;
+tsapi int TS_MIME_LEN_PRAGMA;
+tsapi int TS_MIME_LEN_PROXY_AUTHENTICATE;
+tsapi int TS_MIME_LEN_PROXY_AUTHORIZATION;
+tsapi int TS_MIME_LEN_PROXY_CONNECTION;
+tsapi int TS_MIME_LEN_PUBLIC;
+tsapi int TS_MIME_LEN_RANGE;
+tsapi int TS_MIME_LEN_REFERENCES;
+tsapi int TS_MIME_LEN_REFERER;
+tsapi int TS_MIME_LEN_REPLY_TO;
+tsapi int TS_MIME_LEN_RETRY_AFTER;
+tsapi int TS_MIME_LEN_SENDER;
+tsapi int TS_MIME_LEN_SERVER;
+tsapi int TS_MIME_LEN_SET_COOKIE;
+tsapi int TS_MIME_LEN_STRICT_TRANSPORT_SECURITY;
+tsapi int TS_MIME_LEN_SUBJECT;
+tsapi int TS_MIME_LEN_SUMMARY;
+tsapi int TS_MIME_LEN_TE;
+tsapi int TS_MIME_LEN_TRANSFER_ENCODING;
+tsapi int TS_MIME_LEN_UPGRADE;
+tsapi int TS_MIME_LEN_USER_AGENT;
+tsapi int TS_MIME_LEN_VARY;
+tsapi int TS_MIME_LEN_VIA;
+tsapi int TS_MIME_LEN_WARNING;
+tsapi int TS_MIME_LEN_WWW_AUTHENTICATE;
+tsapi int TS_MIME_LEN_XREF;
+tsapi int TS_MIME_LEN_X_FORWARDED_FOR;
+
+
+/* HTTP miscellaneous values */
+tsapi const char *TS_HTTP_VALUE_BYTES;
+tsapi const char *TS_HTTP_VALUE_CHUNKED;
+tsapi const char *TS_HTTP_VALUE_CLOSE;
+tsapi const char *TS_HTTP_VALUE_COMPRESS;
+tsapi const char *TS_HTTP_VALUE_DEFLATE;
+tsapi const char *TS_HTTP_VALUE_GZIP;
+tsapi const char *TS_HTTP_VALUE_IDENTITY;
+tsapi const char *TS_HTTP_VALUE_KEEP_ALIVE;
+tsapi const char *TS_HTTP_VALUE_MAX_AGE;
+tsapi const char *TS_HTTP_VALUE_MAX_STALE;
+tsapi const char *TS_HTTP_VALUE_MIN_FRESH;
+tsapi const char *TS_HTTP_VALUE_MUST_REVALIDATE;
+tsapi const char *TS_HTTP_VALUE_NONE;
+tsapi const char *TS_HTTP_VALUE_NO_CACHE;
+tsapi const char *TS_HTTP_VALUE_NO_STORE;
+tsapi const char *TS_HTTP_VALUE_NO_TRANSFORM;
+tsapi const char *TS_HTTP_VALUE_ONLY_IF_CACHED;
+tsapi const char *TS_HTTP_VALUE_PRIVATE;
+tsapi const char *TS_HTTP_VALUE_PROXY_REVALIDATE;
+tsapi const char *TS_HTTP_VALUE_PUBLIC;
+tsapi const char *TS_HTTP_VALUE_S_MAXAGE;
+
+/* HTTP miscellaneous values string lengths */
+tsapi int TS_HTTP_LEN_BYTES;
+tsapi int TS_HTTP_LEN_CHUNKED;
+tsapi int TS_HTTP_LEN_CLOSE;
+tsapi int TS_HTTP_LEN_COMPRESS;
+tsapi int TS_HTTP_LEN_DEFLATE;
+tsapi int TS_HTTP_LEN_GZIP;
+tsapi int TS_HTTP_LEN_IDENTITY;
+tsapi int TS_HTTP_LEN_KEEP_ALIVE;
+tsapi int TS_HTTP_LEN_MAX_AGE;
+tsapi int TS_HTTP_LEN_MAX_STALE;
+tsapi int TS_HTTP_LEN_MIN_FRESH;
+tsapi int TS_HTTP_LEN_MUST_REVALIDATE;
+tsapi int TS_HTTP_LEN_NONE;
+tsapi int TS_HTTP_LEN_NO_CACHE;
+tsapi int TS_HTTP_LEN_NO_STORE;
+tsapi int TS_HTTP_LEN_NO_TRANSFORM;
+tsapi int TS_HTTP_LEN_ONLY_IF_CACHED;
+tsapi int TS_HTTP_LEN_PRIVATE;
+tsapi int TS_HTTP_LEN_PROXY_REVALIDATE;
+tsapi int TS_HTTP_LEN_PUBLIC;
+tsapi int TS_HTTP_LEN_S_MAXAGE;
+
+/* HTTP methods */
+tsapi const char *TS_HTTP_METHOD_CONNECT;
+tsapi const char *TS_HTTP_METHOD_DELETE;
+tsapi const char *TS_HTTP_METHOD_GET;
+tsapi const char *TS_HTTP_METHOD_HEAD;
+tsapi const char *TS_HTTP_METHOD_ICP_QUERY;
+tsapi const char *TS_HTTP_METHOD_OPTIONS;
+tsapi const char *TS_HTTP_METHOD_POST;
+tsapi const char *TS_HTTP_METHOD_PURGE;
+tsapi const char *TS_HTTP_METHOD_PUT;
+tsapi const char *TS_HTTP_METHOD_TRACE;
+tsapi const char *TS_HTTP_METHOD_PUSH;
+
+/* HTTP methods string lengths */
+tsapi int TS_HTTP_LEN_CONNECT;
+tsapi int TS_HTTP_LEN_DELETE;
+tsapi int TS_HTTP_LEN_GET;
+tsapi int TS_HTTP_LEN_HEAD;
+tsapi int TS_HTTP_LEN_ICP_QUERY;
+tsapi int TS_HTTP_LEN_OPTIONS;
+tsapi int TS_HTTP_LEN_POST;
+tsapi int TS_HTTP_LEN_PURGE;
+tsapi int TS_HTTP_LEN_PUT;
+tsapi int TS_HTTP_LEN_TRACE;
+tsapi int TS_HTTP_LEN_PUSH;
+
+/* MLoc Constants */
+tsapi const TSMLoc TS_NULL_MLOC = (TSMLoc)NULL;
+
+HttpAPIHooks *http_global_hooks = NULL;
+LifecycleAPIHooks* lifecycle_hooks = NULL;
+ConfigUpdateCbTable *global_config_cbs = NULL;
+
+static char traffic_server_version[128] = "";
+static int ts_major_version = 0;
+static int ts_minor_version = 0;
+static int ts_patch_version = 0;
+
+static ClassAllocator<APIHook> apiHookAllocator("apiHookAllocator");
+static ClassAllocator<INKContInternal> INKContAllocator("INKContAllocator");
+static ClassAllocator<INKVConnInternal> INKVConnAllocator("INKVConnAllocator");
+static ClassAllocator<MIMEFieldSDKHandle> mHandleAllocator("MIMEFieldSDKHandle");
+
+
+////////////////////////////////////////////////////////////////////
+//
+// API error logging
+//
+////////////////////////////////////////////////////////////////////
+void
+TSError(const char *fmt, ...)
+{
+  va_list args;
+
+  if (is_action_tag_set("deft") || is_action_tag_set("sdk_vbos_errors")) {
+    va_start(args, fmt);
+    diags->print_va(NULL, DL_Error, NULL, fmt, args);
+    va_end(args);
+  }
+  va_start(args, fmt);
+  Log::va_error((char *) fmt, args);
+  va_end(args);
+}
+
+// Assert in debug AND optim
+void
+_TSReleaseAssert(const char *text, const char *file, int line)
+{
+  _ink_assert(text, file, line);
+}
+
+// Assert only in debug
+int
+#ifdef DEBUG
+_TSAssert(const char *text, const char *file, int line)
+{
+  _ink_assert(text, file, line);
+  return 0;
+}
+#else
+_TSAssert(const char *, const char *, int)
+{
+  return 0;
+}
+#endif
+
+// This assert is for internal API use only.
+#if TS_USE_FAST_SDK
+#define sdk_assert(EX) (void)(EX)
+#else
+#define sdk_assert(EX)                                          \
+  ( (void)((EX) ? (void)0 : _TSReleaseAssert(#EX, __FILE__, __LINE__)) )
+#endif
+
+////////////////////////////////////////////////////////////////////
+//
+// SDK Interoperability Support
+//
+// ----------------------------------------------------------------
+//
+// Standalone Fields (SDK Version-Interoperability Hack)
+//
+//
+// A "standalone" field is an ugly hack for portability with old
+// versions of the SDK that mirrored the old header system.  In
+// the old system, you could create arbitrary tiny little field
+// objects, distinct from MIME header objects, and link them
+// together.  In the new header system, all fields are internal
+// constituents of the MIME header.  To preserve the semantics of
+// the old SDK, we need to maintain the concept of fields that
+// are created outside of a MIME header.  Whenever a field is
+// "attached" to a MIME header, it is copied into the MIME header
+// field's slot, and the handle to the field is updated to refer
+// to the new field.
+//
+// Hopefully, we can eliminate this old compatibility interface and
+// migrate users to the newer semantics quickly.
+//
+// ----------------------------------------------------------------
+//
+// MIMEField SDK Handles (SDK Version-Interoperability Hack)
+//
+// MIMEField "handles" are used by the SDK as an indirect reference
+// to the MIMEField.  Because versions 1 & 2 of the SDK allowed
+// standalone fields that existed without associated MIME headers,
+// and because the version 3 SDK requires an associated MIME header
+// for all field mutation operations (for presence bits, etc.) we
+// need a data structure that:
+//
+//   * identifies standalone fields and stores field name/value
+//     information for fields that are not yet in a header
+//   * redirects the field to a real header field when the field
+//     is inserted into a header
+//   * maintains the associated MIMEHdrImpl when returning field
+//     slots from lookup and create functions
+//
+// If the MIMEHdrImpl pointer is NULL, then the handle points
+// to a standalone field, otherwise the handle points to a field
+// within the MIME header.
+//
+////////////////////////////////////////////////////////////////////
+
+
+/*****************************************************************/
+/* Handles to headers are impls, but need to handle MIME or HTTP */
+/*****************************************************************/
+
+inline MIMEHdrImpl *
+_hdr_obj_to_mime_hdr_impl(HdrHeapObjImpl * obj)
+{
+  MIMEHdrImpl *impl;
+  if (obj->m_type == HDR_HEAP_OBJ_HTTP_HEADER)
+    impl = ((HTTPHdrImpl *) obj)->m_fields_impl;
+  else if (obj->m_type == HDR_HEAP_OBJ_MIME_HEADER)
+    impl = (MIMEHdrImpl *) obj;
+  else {
+    ink_release_assert(!"mloc not a header type");
+    impl = NULL;                /* gcc does not know about 'ink_release_assert' - make it happy */
+  }
+  return impl;
+}
+
+inline MIMEHdrImpl *
+_hdr_mloc_to_mime_hdr_impl(TSMLoc mloc)
+{
+  return _hdr_obj_to_mime_hdr_impl((HdrHeapObjImpl *) mloc);
+}
+
+TSReturnCode
+sdk_sanity_check_field_handle(TSMLoc field, TSMLoc parent_hdr = NULL)
+{
+  if (field == TS_NULL_MLOC)
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field;
+  if (field_handle->m_type != HDR_HEAP_OBJ_FIELD_SDK_HANDLE)
+    return TS_ERROR;
+
+  if (parent_hdr != NULL) {
+    MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(parent_hdr);
+    if (field_handle->mh != mh)
+      return TS_ERROR;
+  }
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_mbuffer(TSMBuffer bufp)
+{
+  HdrHeapSDKHandle *handle = (HdrHeapSDKHandle *) bufp;
+  if ((handle == NULL) || (handle->m_heap == NULL) || (handle->m_heap->m_magic != HDR_BUF_MAGIC_ALIVE))
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_mime_hdr_handle(TSMLoc field)
+{
+  if (field == TS_NULL_MLOC)
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field;
+  if (field_handle->m_type != HDR_HEAP_OBJ_MIME_HEADER)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_url_handle(TSMLoc field)
+{
+  if (field == TS_NULL_MLOC)
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field;
+  if (field_handle->m_type != HDR_HEAP_OBJ_URL)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_http_hdr_handle(TSMLoc field)
+{
+  if (field == TS_NULL_MLOC)
+    return TS_ERROR;
+
+  HTTPHdrImpl *field_handle = (HTTPHdrImpl *) field;
+  if (field_handle->m_type != HDR_HEAP_OBJ_HTTP_HEADER)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_continuation(TSCont cont)
+{
+  if ((cont == NULL) || (((INKContInternal *) cont)->m_free_magic == INKCONT_INTERN_MAGIC_DEAD))
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_fetch_sm(TSFetchSM fetch_sm)
+{
+  if (fetch_sm == NULL)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_http_ssn(TSHttpSsn ssnp)
+{
+  if (ssnp == NULL)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_txn(TSHttpTxn txnp)
+{
+  if ((txnp != NULL) && (((HttpSM *) txnp)->magic == HTTP_SM_MAGIC_ALIVE))
+    return TS_SUCCESS;
+  return TS_ERROR;
+}
+
+TSReturnCode
+sdk_sanity_check_mime_parser(TSMimeParser parser)
+{
+  if (parser == NULL)
+    return TS_ERROR;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_http_parser(TSHttpParser parser)
+{
+  if (parser == NULL)
+    return TS_ERROR;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_alt_info(TSHttpAltInfo info)
+{
+  if (info == NULL)
+    return TS_ERROR;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_hook_id(TSHttpHookID id)
+{
+  if (id<TS_HTTP_READ_REQUEST_HDR_HOOK || id> TS_HTTP_LAST_HOOK)
+    return TS_ERROR;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_lifecycle_hook_id(TSLifecycleHookID id)
+{
+  if (id<TS_LIFECYCLE_PORTS_INITIALIZED_HOOK || id> TS_LIFECYCLE_LAST_HOOK)
+    return TS_ERROR;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_null_ptr(void *ptr)
+{
+  if (ptr == NULL)
+    return TS_ERROR;
+  return TS_SUCCESS;
+}
+
+/**
+  The function checks if the buffer is Modifiable and returns true if
+  it is modifiable, else returns false.
+
+*/
+bool
+isWriteable(TSMBuffer bufp)
+{
+  if (bufp != NULL) {
+    return ((HdrHeapSDKHandle *) bufp)->m_heap->m_writeable;
+  }
+  return false;
+}
+
+
+/******************************************************/
+/* Allocators for field handles and standalone fields */
+/******************************************************/
+static MIMEFieldSDKHandle *
+sdk_alloc_field_handle(TSMBuffer /* bufp ATS_UNUSED */, MIMEHdrImpl *mh)
+{
+  MIMEFieldSDKHandle *handle = mHandleAllocator.alloc();
+
+  // TODO: Should remove this when memory allocation can't fail.
+  sdk_assert(sdk_sanity_check_null_ptr((void*)handle) == TS_SUCCESS);
+
+  obj_init_header(handle, HDR_HEAP_OBJ_FIELD_SDK_HANDLE, sizeof(MIMEFieldSDKHandle), 0);
+  handle->mh = mh;
+
+  return handle;
+}
+
+static void
+sdk_free_field_handle(TSMBuffer bufp, MIMEFieldSDKHandle *field_handle)
+{
+  if (sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS) {
+    mHandleAllocator.free(field_handle);
+  }
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// FileImpl
+//
+////////////////////////////////////////////////////////////////////
+FileImpl::FileImpl()
+  : m_fd(-1), m_mode(CLOSED), m_buf(NULL), m_bufsize(0), m_bufpos(0)
+{ }
+
+FileImpl::~FileImpl()
+{
+  fclose();
+}
+
+int
+FileImpl::fopen(const char *filename, const char *mode)
+{
+  if (mode[0] == '\0') {
+    return 0;
+  } else if (mode[0] == 'r') {
+    if (mode[1] != '\0') {
+      return 0;
+    }
+    m_mode = READ;
+    m_fd = open(filename, O_RDONLY | _O_ATTRIB_NORMAL);
+  } else if (mode[0] == 'w') {
+    if (mode[1] != '\0') {
+      return 0;
+    }
+    m_mode = WRITE;
+    m_fd = open(filename, O_WRONLY | O_CREAT | _O_ATTRIB_NORMAL, 0644);
+  } else if (mode[0] == 'a') {
+    if (mode[1] != '\0') {
+      return 0;
+    }
+    m_mode = WRITE;
+    m_fd = open(filename, O_WRONLY | O_CREAT | O_APPEND | _O_ATTRIB_NORMAL, 0644);
+  }
+
+  if (m_fd < 0) {
+    m_mode = CLOSED;
+    return 0;
+  } else {
+    return 1;
+  }
+}
+
+void
+FileImpl::fclose()
+{
+  if (m_fd != -1) {
+    fflush();
+
+    close(m_fd);
+    m_fd = -1;
+    m_mode = CLOSED;
+  }
+
+  if (m_buf) {
+    ats_free(m_buf);
+    m_buf = NULL;
+    m_bufsize = 0;
+    m_bufpos = 0;
+  }
+}
+
+int
+FileImpl::fread(void *buf, int length)
+{
+  int64_t amount;
+  int64_t err;
+
+  if ((m_mode != READ) || (m_fd == -1)) {
+    return -1;
+  }
+
+  if (!m_buf) {
+    m_bufpos = 0;
+    m_bufsize = 1024;
+    m_buf = (char *)ats_malloc(m_bufsize);
+  }
+
+  if (m_bufpos < length) {
+    amount = length;
+    if (amount < 1024) {
+      amount = 1024;
+    }
+    if (amount > (m_bufsize - m_bufpos)) {
+      while (amount > (m_bufsize - m_bufpos)) {
+        m_bufsize *= 2;
+      }
+      m_buf = (char *)ats_realloc(m_buf, m_bufsize);
+    }
+
+    do {
+      err = read(m_fd, &m_buf[m_bufpos], amount);
+    } while ((err < 0) && (errno == EINTR));
+
+    if (err < 0) {
+      return -1;
+    }
+
+    m_bufpos += err;
+  }
+
+  if (buf) {
+    amount = length;
+    if (amount > m_bufpos) {
+      amount = m_bufpos;
+    }
+    memcpy(buf, m_buf, amount);
+    memmove(m_buf, &m_buf[amount], m_bufpos - amount);
+    m_bufpos -= amount;
+    return amount;
+  } else {
+    return m_bufpos;
+  }
+}
+
+int
+FileImpl::fwrite(const void *buf, int length)
+{
+  const char *p, *e;
+  int64_t avail;
+
+  if ((m_mode != WRITE) || (m_fd == -1)) {
+    return -1;
+  }
+
+  if (!m_buf) {
+    m_bufpos = 0;
+    m_bufsize = 1024;
+    m_buf = (char *)ats_malloc(m_bufsize);
+  }
+
+  p = (const char *) buf;
+  e = p + length;
+
+  while (p != e) {
+    avail = m_bufsize - m_bufpos;
+    if (avail > length) {
+      avail = length;
+    }
+    memcpy(&m_buf[m_bufpos], p, avail);
+
+    m_bufpos += avail;
+    p += avail;
+    length -= avail;
+
+    if ((length > 0) && (m_bufpos > 0)) {
+      if (fflush() <= 0) {
+        break;
+      }
+    }
+  }
+
+  return (p - (const char *) buf);
+}
+
+int
+FileImpl::fflush()
+{
+  char *p, *e;
+  int err = 0;
+
+  if ((m_mode != WRITE) || (m_fd == -1)) {
+    return -1;
+  }
+
+  if (m_buf) {
+    p = m_buf;
+    e = &m_buf[m_bufpos];
+
+    while (p != e) {
+      do {
+        err = write(m_fd, p, e - p);
+      } while ((err < 0) && (errno == EINTR));
+
+      if (err < 0) {
+        break;
+      }
+
+      p += err;
+    }
+
+    err = p - m_buf;
+    memmove(m_buf, &m_buf[err], m_bufpos - err);
+    m_bufpos -= err;
+  }
+
+  return err;
+}
+
+char *
+FileImpl::fgets(char *buf, int length)
+{
+  char *e;
+  int pos;
+
+  if (length == 0) {
+    return NULL;
+  }
+
+  if (!m_buf || (m_bufpos < (length - 1))) {
+    pos = m_bufpos;
+
+    fread(NULL, length - 1);
+
+    if (!m_bufpos && (pos == m_bufpos)) {
+      return NULL;
+    }
+  }
+
+  e = (char *) memchr(m_buf, '\n', m_bufpos);
+  if (e) {
+    e += 1;
+    if (length > (e - m_buf + 1)) {
+      length = e - m_buf + 1;
+    }
+  }
+
+  pos = fread(buf, length - 1);
+  buf[pos] = '\0';
+
+  return buf;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// INKContInternal
+//
+////////////////////////////////////////////////////////////////////
+
+INKContInternal::INKContInternal()
+  : DummyVConnection(NULL), mdata(NULL), m_event_func(NULL), m_event_count(0), m_closed(1), m_deletable(0),
+    m_deleted(0), m_free_magic(INKCONT_INTERN_MAGIC_ALIVE)
+{ }
+
+INKContInternal::INKContInternal(TSEventFunc funcp, TSMutex mutexp)
+  : DummyVConnection((ProxyMutex *) mutexp),
+    mdata(NULL), m_event_func(funcp), m_event_count(0), m_closed(1), m_deletable(0), m_deleted(0),
+    m_free_magic(INKCONT_INTERN_MAGIC_ALIVE)
+{
+  SET_HANDLER(&INKContInternal::handle_event);
+}
+
+void
+INKContInternal::init(TSEventFunc funcp, TSMutex mutexp)
+{
+  SET_HANDLER(&INKContInternal::handle_event);
+
+  mutex = (ProxyMutex *) mutexp;
+  m_event_func = funcp;
+}
+
+void
+INKContInternal::destroy()
+{
+  if (m_free_magic == INKCONT_INTERN_MAGIC_DEAD) {
+    ink_release_assert(!"Plugin tries to use a continuation which is deleted");
+  }
+  m_deleted = 1;
+  if (m_deletable) {
+    this->mutex = NULL;
+    m_free_magic = INKCONT_INTERN_MAGIC_DEAD;
+    INKContAllocator.free(this);
+  } else {
+    // TODO: Should this schedule on some other "thread" ?
+    // TODO: we don't care about the return action?
+    TSContSchedule((TSCont)this, 0, TS_THREAD_POOL_DEFAULT);
+  }
+}
+
+void
+INKContInternal::handle_event_count(int event)
+{
+  if ((event == EVENT_IMMEDIATE) || (event == EVENT_INTERVAL)) {
+    int val;
+
+    m_deletable = (m_closed != 0);
+
+    val = ink_atomic_increment((int *) &m_event_count, -1);
+    if (val <= 0) {
+      ink_assert(!"not reached");
+    }
+
+    m_deletable = m_deletable && (val == 1);
+  }
+}
+
+int
+INKContInternal::handle_event(int event, void *edata)
+{
+  if (m_free_magic == INKCONT_INTERN_MAGIC_DEAD) {
+    ink_release_assert(!"Plugin tries to use a continuation which is deleted");
+  }
+  handle_event_count(event);
+  if (m_deleted) {
+    if (m_deletable) {
+      this->mutex = NULL;
+      m_free_magic = INKCONT_INTERN_MAGIC_DEAD;
+      INKContAllocator.free(this);
+    }
+  } else {
+    return m_event_func((TSCont) this, (TSEvent) event, edata);
+  }
+  return EVENT_DONE;
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// INKVConnInternal
+//
+////////////////////////////////////////////////////////////////////
+
+INKVConnInternal::INKVConnInternal()
+:INKContInternal(), m_read_vio(), m_write_vio(), m_output_vc(NULL)
+{
+  m_closed = 0;
+}
+
+INKVConnInternal::INKVConnInternal(TSEventFunc funcp, TSMutex mutexp)
+:INKContInternal(funcp, mutexp), m_read_vio(), m_write_vio(), m_output_vc(NULL)
+{
+  m_closed = 0;
+  SET_HANDLER(&INKVConnInternal::handle_event);
+}
+
+void
+INKVConnInternal::init(TSEventFunc funcp, TSMutex mutexp)
+{
+  INKContInternal::init(funcp, mutexp);
+  SET_HANDLER(&INKVConnInternal::handle_event);
+}
+
+void
+INKVConnInternal::destroy()
+{
+  m_deleted = 1;
+  if (m_deletable) {
+    this->mutex = NULL;
+    m_read_vio.set_continuation(NULL);
+    m_write_vio.set_continuation(NULL);
+    INKVConnAllocator.free(this);
+  }
+}
+
+int
+INKVConnInternal::handle_event(int event, void *edata)
+{
+  handle_event_count(event);
+  if (m_deleted) {
+    if (m_deletable) {
+      this->mutex = NULL;
+      m_read_vio.set_continuation(NULL);
+      m_write_vio.set_continuation(NULL);
+      INKVConnAllocator.free(this);
+    }
+  } else {
+    return m_event_func((TSCont) this, (TSEvent) event, edata);
+  }
+  return EVENT_DONE;
+}
+
+VIO *
+INKVConnInternal::do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf)
+{
+  m_read_vio.buffer.writer_for(buf);
+  m_read_vio.op = VIO::READ;
+  m_read_vio.set_continuation(c);
+  m_read_vio.nbytes = nbytes;
+  m_read_vio.ndone = 0;
+  m_read_vio.vc_server = this;
+
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+  eventProcessor.schedule_imm(this, ET_NET);
+
+  return &m_read_vio;
+}
+
+VIO *
+INKVConnInternal::do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner)
+{
+  ink_assert(!owner);
+  m_write_vio.buffer.reader_for(buf);
+  m_write_vio.op = VIO::WRITE;
+  m_write_vio.set_continuation(c);
+  m_write_vio.nbytes = nbytes;
+  m_write_vio.ndone = 0;
+  m_write_vio.vc_server = this;
+
+  if (m_write_vio.buffer.reader()->read_avail() > 0) {
+    if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+      ink_assert(!"not reached");
+    }
+    eventProcessor.schedule_imm(this, ET_NET);
+  }
+
+  return &m_write_vio;
+}
+
+void
+INKVConnInternal::do_io_transform(VConnection *vc)
+{
+  m_output_vc = vc;
+}
+
+void
+INKVConnInternal::do_io_close(int error)
+{
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+
+  INK_WRITE_MEMORY_BARRIER;
+
+  if (error != -1) {
+    lerrno = error;
+    m_closed = TS_VC_CLOSE_ABORT;
+  } else {
+    m_closed = TS_VC_CLOSE_NORMAL;
+  }
+
+  m_read_vio.op = VIO::NONE;
+  m_read_vio.buffer.clear();
+
+  m_write_vio.op = VIO::NONE;
+  m_write_vio.buffer.clear();
+
+  if (m_output_vc) {
+    m_output_vc->do_io_close(error);
+  }
+
+  eventProcessor.schedule_imm(this, ET_NET);
+}
+
+void
+INKVConnInternal::do_io_shutdown(ShutdownHowTo_t howto)
+{
+  if ((howto == IO_SHUTDOWN_READ) || (howto == IO_SHUTDOWN_READWRITE)) {
+    m_read_vio.op = VIO::NONE;
+    m_read_vio.buffer.clear();
+  }
+
+  if ((howto == IO_SHUTDOWN_WRITE) || (howto == IO_SHUTDOWN_READWRITE)) {
+    m_write_vio.op = VIO::NONE;
+    m_write_vio.buffer.clear();
+  }
+
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+  eventProcessor.schedule_imm(this, ET_NET);
+}
+
+void
+INKVConnInternal::reenable(VIO */* vio ATS_UNUSED */)
+{
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+  eventProcessor.schedule_imm(this, ET_NET);
+}
+
+void
+INKVConnInternal::retry(unsigned int delay)
+{
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+  mutex->thread_holding->schedule_in(this, HRTIME_MSECONDS(delay));
+}
+
+bool
+INKVConnInternal::get_data(int id, void *data)
+{
+  switch (id) {
+  case TS_API_DATA_READ_VIO:
+    *((TSVIO *) data) = reinterpret_cast<TSVIO>(&m_read_vio);
+    return true;
+  case TS_API_DATA_WRITE_VIO:
+    *((TSVIO *) data) = reinterpret_cast<TSVIO>(&m_write_vio);
+    return true;
+  case TS_API_DATA_OUTPUT_VC:
+    *((TSVConn *) data) = reinterpret_cast<TSVConn>(m_output_vc);
+    return true;
+  case TS_API_DATA_CLOSED:
+    *((int *) data) = m_closed;
+    return true;
+  default:
+    return INKContInternal::get_data(id, data);
+  }
+}
+
+bool
+INKVConnInternal::set_data(int id, void *data)
+{
+  switch (id) {
+  case TS_API_DATA_OUTPUT_VC:
+    m_output_vc = (VConnection *) data;
+    return true;
+  default:
+    return INKContInternal::set_data(id, data);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// APIHook, APIHooks, HttpAPIHooks
+//
+////////////////////////////////////////////////////////////////////
+
+int
+APIHook::invoke(int event, void *edata)
+{
+  if ((event == EVENT_IMMEDIATE) || (event == EVENT_INTERVAL)) {
+    if (ink_atomic_increment((int *) &m_cont->m_event_count, 1) < 0) {
+      ink_assert(!"not reached");
+    }
+  }
+  return m_cont->handleEvent(event, edata);
+}
+
+APIHook *
+APIHook::next() const
+{
+  return m_link.next;
+}
+
+
+void
+APIHooks::prepend(INKContInternal *cont)
+{
+  APIHook *api_hook;
+
+  api_hook = apiHookAllocator.alloc();
+  api_hook->m_cont = cont;
+
+  m_hooks.push(api_hook);
+}
+
+void
+APIHooks::append(INKContInternal *cont)
+{
+  APIHook *api_hook;
+
+  api_hook = apiHookAllocator.alloc();
+  api_hook->m_cont = cont;
+
+  m_hooks.enqueue(api_hook);
+}
+
+APIHook *
+APIHooks::get()
+{
+  return m_hooks.head;
+}
+
+void
+APIHooks::clear()
+{
+  APIHook* hook;
+  while (0 != (hook = m_hooks.pop())) {
+    apiHookAllocator.free(hook);
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// ConfigUpdateCbTable
+//
+////////////////////////////////////////////////////////////////////
+
+ConfigUpdateCbTable::ConfigUpdateCbTable()
+{
+  cb_table = ink_hash_table_create(InkHashTableKeyType_String);
+}
+
+ConfigUpdateCbTable::~ConfigUpdateCbTable()
+{
+  ink_assert(cb_table != NULL);
+
+  ink_hash_table_destroy(cb_table);
+}
+
+void
+ConfigUpdateCbTable::insert(INKContInternal *contp, const char *name)
+{
+  ink_assert(cb_table != NULL);
+
+  if (contp && name)
+    ink_hash_table_insert(cb_table, (InkHashTableKey) name, (InkHashTableValue) contp);
+}
+
+void
+ConfigUpdateCbTable::invoke(const char *name)
+{
+  ink_assert(cb_table != NULL);
+
+  InkHashTableIteratorState ht_iter;
+  InkHashTableEntry *ht_entry;
+  INKContInternal *contp;
+
+  if (name != NULL) {
+    if (strcmp(name, "*") == 0) {
+      ht_entry = ink_hash_table_iterator_first(cb_table, &ht_iter);
+      while (ht_entry != NULL) {
+        contp = (INKContInternal *)ink_hash_table_entry_value(cb_table, ht_entry);
+        ink_assert(contp != NULL);
+        invoke(contp);
+        ht_entry = ink_hash_table_iterator_next(cb_table, &ht_iter);
+      }
+    } else {
+      ht_entry = ink_hash_table_lookup_entry(cb_table, (InkHashTableKey) name);
+      if (ht_entry != NULL) {
+        contp = (INKContInternal *) ink_hash_table_entry_value(cb_table, ht_entry);
+        ink_assert(contp != NULL);
+        invoke(contp);
+      }
+    }
+  }
+}
+
+void
+ConfigUpdateCbTable::invoke(INKContInternal *contp)
+{
+  eventProcessor.schedule_imm(new ConfigUpdateCallback(contp), ET_TASK);
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// api_init
+//
+////////////////////////////////////////////////////////////////////
+
+void
+api_init()
+{
+  // HDR FIX ME
+
+  static int init = 1;
+
+  if (init) {
+    init = 0;
+
+#ifndef UNSAFE_FORCE_MUTEX
+    ink_mutex_init(&big_mux, "APIMongoMutex");
+#endif
+
+    /* URL schemes */
+    TS_URL_SCHEME_FILE = URL_SCHEME_FILE;
+    TS_URL_SCHEME_FTP = URL_SCHEME_FTP;
+    TS_URL_SCHEME_GOPHER = URL_SCHEME_GOPHER;
+    TS_URL_SCHEME_HTTP = URL_SCHEME_HTTP;
+    TS_URL_SCHEME_HTTPS = URL_SCHEME_HTTPS;
+    TS_URL_SCHEME_MAILTO = URL_SCHEME_MAILTO;
+    TS_URL_SCHEME_NEWS = URL_SCHEME_NEWS;
+    TS_URL_SCHEME_NNTP = URL_SCHEME_NNTP;
+    TS_URL_SCHEME_PROSPERO = URL_SCHEME_PROSPERO;
+    TS_URL_SCHEME_TELNET = URL_SCHEME_TELNET;
+    TS_URL_SCHEME_WAIS = URL_SCHEME_WAIS;
+
+    TS_URL_LEN_FILE = URL_LEN_FILE;
+    TS_URL_LEN_FTP = URL_LEN_FTP;
+    TS_URL_LEN_GOPHER = URL_LEN_GOPHER;
+    TS_URL_LEN_HTTP = URL_LEN_HTTP;
+    TS_URL_LEN_HTTPS = URL_LEN_HTTPS;
+    TS_URL_LEN_MAILTO = URL_LEN_MAILTO;
+    TS_URL_LEN_NEWS = URL_LEN_NEWS;
+    TS_URL_LEN_NNTP = URL_LEN_NNTP;
+    TS_URL_LEN_PROSPERO = URL_LEN_PROSPERO;
+    TS_URL_LEN_TELNET = URL_LEN_TELNET;
+    TS_URL_LEN_WAIS = URL_LEN_WAIS;
+
+    /* MIME fields */
+    TS_MIME_FIELD_ACCEPT = MIME_FIELD_ACCEPT;
+    TS_MIME_FIELD_ACCEPT_CHARSET = MIME_FIELD_ACCEPT_CHARSET;
+    TS_MIME_FIELD_ACCEPT_ENCODING = MIME_FIELD_ACCEPT_ENCODING;
+    TS_MIME_FIELD_ACCEPT_LANGUAGE = MIME_FIELD_ACCEPT_LANGUAGE;
+    TS_MIME_FIELD_ACCEPT_RANGES = MIME_FIELD_ACCEPT_RANGES;
+    TS_MIME_FIELD_AGE = MIME_FIELD_AGE;
+    TS_MIME_FIELD_ALLOW = MIME_FIELD_ALLOW;
+    TS_MIME_FIELD_APPROVED = MIME_FIELD_APPROVED;
+    TS_MIME_FIELD_AUTHORIZATION = MIME_FIELD_AUTHORIZATION;
+    TS_MIME_FIELD_BYTES = MIME_FIELD_BYTES;
+    TS_MIME_FIELD_CACHE_CONTROL = MIME_FIELD_CACHE_CONTROL;
+    TS_MIME_FIELD_CLIENT_IP = MIME_FIELD_CLIENT_IP;
+    TS_MIME_FIELD_CONNECTION = MIME_FIELD_CONNECTION;
+    TS_MIME_FIELD_CONTENT_BASE = MIME_FIELD_CONTENT_BASE;
+    TS_MIME_FIELD_CONTENT_ENCODING = MIME_FIELD_CONTENT_ENCODING;
+    TS_MIME_FIELD_CONTENT_LANGUAGE = MIME_FIELD_CONTENT_LANGUAGE;
+    TS_MIME_FIELD_CONTENT_LENGTH = MIME_FIELD_CONTENT_LENGTH;
+    TS_MIME_FIELD_CONTENT_LOCATION = MIME_FIELD_CONTENT_LOCATION;
+    TS_MIME_FIELD_CONTENT_MD5 = MIME_FIELD_CONTENT_MD5;
+    TS_MIME_FIELD_CONTENT_RANGE = MIME_FIELD_CONTENT_RANGE;
+    TS_MIME_FIELD_CONTENT_TYPE = MIME_FIELD_CONTENT_TYPE;
+    TS_MIME_FIELD_CONTROL = MIME_FIELD_CONTROL;
+    TS_MIME_FIELD_COOKIE = MIME_FIELD_COOKIE;
+    TS_MIME_FIELD_DATE = MIME_FIELD_DATE;
+    TS_MIME_FIELD_DISTRIBUTION = MIME_FIELD_DISTRIBUTION;
+    TS_MIME_FIELD_ETAG = MIME_FIELD_ETAG;
+    TS_MIME_FIELD_EXPECT = MIME_FIELD_EXPECT;
+    TS_MIME_FIELD_EXPIRES = MIME_FIELD_EXPIRES;
+    TS_MIME_FIELD_FOLLOWUP_TO = MIME_FIELD_FOLLOWUP_TO;
+    TS_MIME_FIELD_FROM = MIME_FIELD_FROM;
+    TS_MIME_FIELD_HOST = MIME_FIELD_HOST;
+    TS_MIME_FIELD_IF_MATCH = MIME_FIELD_IF_MATCH;
+    TS_MIME_FIELD_IF_MODIFIED_SINCE = MIME_FIELD_IF_MODIFIED_SINCE;
+    TS_MIME_FIELD_IF_NONE_MATCH = MIME_FIELD_IF_NONE_MATCH;
+    TS_MIME_FIELD_IF_RANGE = MIME_FIELD_IF_RANGE;
+    TS_MIME_FIELD_IF_UNMODIFIED_SINCE = MIME_FIELD_IF_UNMODIFIED_SINCE;
+    TS_MIME_FIELD_KEEP_ALIVE = MIME_FIELD_KEEP_ALIVE;
+    TS_MIME_FIELD_KEYWORDS = MIME_FIELD_KEYWORDS;
+    TS_MIME_FIELD_LAST_MODIFIED = MIME_FIELD_LAST_MODIFIED;
+    TS_MIME_FIELD_LINES = MIME_FIELD_LINES;
+    TS_MIME_FIELD_LOCATION = MIME_FIELD_LOCATION;
+    TS_MIME_FIELD_MAX_FORWARDS = MIME_FIELD_MAX_FORWARDS;
+    TS_MIME_FIELD_MESSAGE_ID = MIME_FIELD_MESSAGE_ID;
+    TS_MIME_FIELD_NEWSGROUPS = MIME_FIELD_NEWSGROUPS;
+    TS_MIME_FIELD_ORGANIZATION = MIME_FIELD_ORGANIZATION;
+    TS_MIME_FIELD_PATH = MIME_FIELD_PATH;
+    TS_MIME_FIELD_PRAGMA = MIME_FIELD_PRAGMA;
+    TS_MIME_FIELD_PROXY_AUTHENTICATE = MIME_FIELD_PROXY_AUTHENTICATE;
+    TS_MIME_FIELD_PROXY_AUTHORIZATION = MIME_FIELD_PROXY_AUTHORIZATION;
+    TS_MIME_FIELD_PROXY_CONNECTION = MIME_FIELD_PROXY_CONNECTION;
+    TS_MIME_FIELD_PUBLIC = MIME_FIELD_PUBLIC;
+    TS_MIME_FIELD_RANGE = MIME_FIELD_RANGE;
+    TS_MIME_FIELD_REFERENCES = MIME_FIELD_REFERENCES;
+    TS_MIME_FIELD_REFERER = MIME_FIELD_REFERER;
+    TS_MIME_FIELD_REPLY_TO = MIME_FIELD_REPLY_TO;
+    TS_MIME_FIELD_RETRY_AFTER = MIME_FIELD_RETRY_AFTER;
+    TS_MIME_FIELD_SENDER = MIME_FIELD_SENDER;
+    TS_MIME_FIELD_SERVER = MIME_FIELD_SERVER;
+    TS_MIME_FIELD_SET_COOKIE = MIME_FIELD_SET_COOKIE;
+    TS_MIME_FIELD_STRICT_TRANSPORT_SECURITY = MIME_FIELD_STRICT_TRANSPORT_SECURITY;
+    TS_MIME_FIELD_SUBJECT = MIME_FIELD_SUBJECT;
+    TS_MIME_FIELD_SUMMARY = MIME_FIELD_SUMMARY;
+    TS_MIME_FIELD_TE = MIME_FIELD_TE;
+    TS_MIME_FIELD_TRANSFER_ENCODING = MIME_FIELD_TRANSFER_ENCODING;
+    TS_MIME_FIELD_UPGRADE = MIME_FIELD_UPGRADE;
+    TS_MIME_FIELD_USER_AGENT = MIME_FIELD_USER_AGENT;
+    TS_MIME_FIELD_VARY = MIME_FIELD_VARY;
+    TS_MIME_FIELD_VIA = MIME_FIELD_VIA;
+    TS_MIME_FIELD_WARNING = MIME_FIELD_WARNING;
+    TS_MIME_FIELD_WWW_AUTHENTICATE = MIME_FIELD_WWW_AUTHENTICATE;
+    TS_MIME_FIELD_XREF = MIME_FIELD_XREF;
+    TS_MIME_FIELD_X_FORWARDED_FOR = MIME_FIELD_X_FORWARDED_FOR;
+
+
+    TS_MIME_LEN_ACCEPT = MIME_LEN_ACCEPT;
+    TS_MIME_LEN_ACCEPT_CHARSET = MIME_LEN_ACCEPT_CHARSET;
+    TS_MIME_LEN_ACCEPT_ENCODING = MIME_LEN_ACCEPT_ENCODING;
+    TS_MIME_LEN_ACCEPT_LANGUAGE = MIME_LEN_ACCEPT_LANGUAGE;
+    TS_MIME_LEN_ACCEPT_RANGES = MIME_LEN_ACCEPT_RANGES;
+    TS_MIME_LEN_AGE = MIME_LEN_AGE;
+    TS_MIME_LEN_ALLOW = MIME_LEN_ALLOW;
+    TS_MIME_LEN_APPROVED = MIME_LEN_APPROVED;
+    TS_MIME_LEN_AUTHORIZATION = MIME_LEN_AUTHORIZATION;
+    TS_MIME_LEN_BYTES = MIME_LEN_BYTES;
+    TS_MIME_LEN_CACHE_CONTROL = MIME_LEN_CACHE_CONTROL;
+    TS_MIME_LEN_CLIENT_IP = MIME_LEN_CLIENT_IP;
+    TS_MIME_LEN_CONNECTION = MIME_LEN_CONNECTION;
+    TS_MIME_LEN_CONTENT_BASE = MIME_LEN_CONTENT_BASE;
+    TS_MIME_LEN_CONTENT_ENCODING = MIME_LEN_CONTENT_ENCODING;
+    TS_MIME_LEN_CONTENT_LANGUAGE = MIME_LEN_CONTENT_LANGUAGE;
+    TS_MIME_LEN_CONTENT_LENGTH = MIME_LEN_CONTENT_LENGTH;
+    TS_MIME_LEN_CONTENT_LOCATION = MIME_LEN_CONTENT_LOCATION;
+    TS_MIME_LEN_CONTENT_MD5 = MIME_LEN_CONTENT_MD5;
+    TS_MIME_LEN_CONTENT_RANGE = MIME_LEN_CONTENT_RANGE;
+    TS_MIME_LEN_CONTENT_TYPE = MIME_LEN_CONTENT_TYPE;
+    TS_MIME_LEN_CONTROL = MIME_LEN_CONTROL;
+    TS_MIME_LEN_COOKIE = MIME_LEN_COOKIE;
+    TS_MIME_LEN_DATE = MIME_LEN_DATE;
+    TS_MIME_LEN_DISTRIBUTION = MIME_LEN_DISTRIBUTION;
+    TS_MIME_LEN_ETAG = MIME_LEN_ETAG;
+    TS_MIME_LEN_EXPECT = MIME_LEN_EXPECT;
+    TS_MIME_LEN_EXPIRES = MIME_LEN_EXPIRES;
+    TS_MIME_LEN_FOLLOWUP_TO = MIME_LEN_FOLLOWUP_TO;
+    TS_MIME_LEN_FROM = MIME_LEN_FROM;
+    TS_MIME_LEN_HOST = MIME_LEN_HOST;
+    TS_MIME_LEN_IF_MATCH = MIME_LEN_IF_MATCH;
+    TS_MIME_LEN_IF_MODIFIED_SINCE = MIME_LEN_IF_MODIFIED_SINCE;
+    TS_MIME_LEN_IF_NONE_MATCH = MIME_LEN_IF_NONE_MATCH;
+    TS_MIME_LEN_IF_RANGE = MIME_LEN_IF_RANGE;
+    TS_MIME_LEN_IF_UNMODIFIED_SINCE = MIME_LEN_IF_UNMODIFIED_SINCE;
+    TS_MIME_LEN_KEEP_ALIVE = MIME_LEN_KEEP_ALIVE;
+    TS_MIME_LEN_KEYWORDS = MIME_LEN_KEYWORDS;
+    TS_MIME_LEN_LAST_MODIFIED = MIME_LEN_LAST_MODIFIED;
+    TS_MIME_LEN_LINES = MIME_LEN_LINES;
+    TS_MIME_LEN_LOCATION = MIME_LEN_LOCATION;
+    TS_MIME_LEN_MAX_FORWARDS = MIME_LEN_MAX_FORWARDS;
+    TS_MIME_LEN_MESSAGE_ID = MIME_LEN_MESSAGE_ID;
+    TS_MIME_LEN_NEWSGROUPS = MIME_LEN_NEWSGROUPS;
+    TS_MIME_LEN_ORGANIZATION = MIME_LEN_ORGANIZATION;
+    TS_MIME_LEN_PATH = MIME_LEN_PATH;
+    TS_MIME_LEN_PRAGMA = MIME_LEN_PRAGMA;
+    TS_MIME_LEN_PROXY_AUTHENTICATE = MIME_LEN_PROXY_AUTHENTICATE;
+    TS_MIME_LEN_PROXY_AUTHORIZATION = MIME_LEN_PROXY_AUTHORIZATION;
+    TS_MIME_LEN_PROXY_CONNECTION = MIME_LEN_PROXY_CONNECTION;
+    TS_MIME_LEN_PUBLIC = MIME_LEN_PUBLIC;
+    TS_MIME_LEN_RANGE = MIME_LEN_RANGE;
+    TS_MIME_LEN_REFERENCES = MIME_LEN_REFERENCES;
+    TS_MIME_LEN_REFERER = MIME_LEN_REFERER;
+    TS_MIME_LEN_REPLY_TO = MIME_LEN_REPLY_TO;
+    TS_MIME_LEN_RETRY_AFTER = MIME_LEN_RETRY_AFTER;
+    TS_MIME_LEN_SENDER = MIME_LEN_SENDER;
+    TS_MIME_LEN_SERVER = MIME_LEN_SERVER;
+    TS_MIME_LEN_SET_COOKIE = MIME_LEN_SET_COOKIE;
+    TS_MIME_LEN_STRICT_TRANSPORT_SECURITY = MIME_LEN_STRICT_TRANSPORT_SECURITY;
+    TS_MIME_LEN_SUBJECT = MIME_LEN_SUBJECT;
+    TS_MIME_LEN_SUMMARY = MIME_LEN_SUMMARY;
+    TS_MIME_LEN_TE = MIME_LEN_TE;
+    TS_MIME_LEN_TRANSFER_ENCODING = MIME_LEN_TRANSFER_ENCODING;
+    TS_MIME_LEN_UPGRADE = MIME_LEN_UPGRADE;
+    TS_MIME_LEN_USER_AGENT = MIME_LEN_USER_AGENT;
+    TS_MIME_LEN_VARY = MIME_LEN_VARY;
+    TS_MIME_LEN_VIA = MIME_LEN_VIA;
+    TS_MIME_LEN_WARNING = MIME_LEN_WARNING;
+    TS_MIME_LEN_WWW_AUTHENTICATE = MIME_LEN_WWW_AUTHENTICATE;
+    TS_MIME_LEN_XREF = MIME_LEN_XREF;
+    TS_MIME_LEN_X_FORWARDED_FOR = MIME_LEN_X_FORWARDED_FOR;
+
+
+    /* HTTP methods */
+    TS_HTTP_METHOD_CONNECT = HTTP_METHOD_CONNECT;
+    TS_HTTP_METHOD_DELETE = HTTP_METHOD_DELETE;
+    TS_HTTP_METHOD_GET = HTTP_METHOD_GET;
+    TS_HTTP_METHOD_HEAD = HTTP_METHOD_HEAD;
+    TS_HTTP_METHOD_ICP_QUERY = HTTP_METHOD_ICP_QUERY;
+    TS_HTTP_METHOD_OPTIONS = HTTP_METHOD_OPTIONS;
+    TS_HTTP_METHOD_POST = HTTP_METHOD_POST;
+    TS_HTTP_METHOD_PURGE = HTTP_METHOD_PURGE;
+    TS_HTTP_METHOD_PUT = HTTP_METHOD_PUT;
+    TS_HTTP_METHOD_TRACE = HTTP_METHOD_TRACE;
+    TS_HTTP_METHOD_PUSH = HTTP_METHOD_PUSH;
+
+    TS_HTTP_LEN_CONNECT = HTTP_LEN_CONNECT;
+    TS_HTTP_LEN_DELETE = HTTP_LEN_DELETE;
+    TS_HTTP_LEN_GET = HTTP_LEN_GET;
+    TS_HTTP_LEN_HEAD = HTTP_LEN_HEAD;
+    TS_HTTP_LEN_ICP_QUERY = HTTP_LEN_ICP_QUERY;
+    TS_HTTP_LEN_OPTIONS = HTTP_LEN_OPTIONS;
+    TS_HTTP_LEN_POST = HTTP_LEN_POST;
+    TS_HTTP_LEN_PURGE = HTTP_LEN_PURGE;
+    TS_HTTP_LEN_PUT = HTTP_LEN_PUT;
+    TS_HTTP_LEN_TRACE = HTTP_LEN_TRACE;
+    TS_HTTP_LEN_PUSH = HTTP_LEN_PUSH;
+
+    /* HTTP miscellaneous values */
+    TS_HTTP_VALUE_BYTES = HTTP_VALUE_BYTES;
+    TS_HTTP_VALUE_CHUNKED = HTTP_VALUE_CHUNKED;
+    TS_HTTP_VALUE_CLOSE = HTTP_VALUE_CLOSE;
+    TS_HTTP_VALUE_COMPRESS = HTTP_VALUE_COMPRESS;
+    TS_HTTP_VALUE_DEFLATE = HTTP_VALUE_DEFLATE;
+    TS_HTTP_VALUE_GZIP = HTTP_VALUE_GZIP;
+    TS_HTTP_VALUE_IDENTITY = HTTP_VALUE_IDENTITY;
+    TS_HTTP_VALUE_KEEP_ALIVE = HTTP_VALUE_KEEP_ALIVE;
+    TS_HTTP_VALUE_MAX_AGE = HTTP_VALUE_MAX_AGE;
+    TS_HTTP_VALUE_MAX_STALE = HTTP_VALUE_MAX_STALE;
+    TS_HTTP_VALUE_MIN_FRESH = HTTP_VALUE_MIN_FRESH;
+    TS_HTTP_VALUE_MUST_REVALIDATE = HTTP_VALUE_MUST_REVALIDATE;
+    TS_HTTP_VALUE_NONE = HTTP_VALUE_NONE;
+    TS_HTTP_VALUE_NO_CACHE = HTTP_VALUE_NO_CACHE;
+    TS_HTTP_VALUE_NO_STORE = HTTP_VALUE_NO_STORE;
+    TS_HTTP_VALUE_NO_TRANSFORM = HTTP_VALUE_NO_TRANSFORM;
+    TS_HTTP_VALUE_ONLY_IF_CACHED = HTTP_VALUE_ONLY_IF_CACHED;
+    TS_HTTP_VALUE_PRIVATE = HTTP_VALUE_PRIVATE;
+    TS_HTTP_VALUE_PROXY_REVALIDATE = HTTP_VALUE_PROXY_REVALIDATE;
+    TS_HTTP_VALUE_PUBLIC = HTTP_VALUE_PUBLIC;
+    TS_HTTP_VALUE_S_MAXAGE = HTTP_VALUE_S_MAXAGE;
+
+    TS_HTTP_LEN_BYTES = HTTP_LEN_BYTES;
+    TS_HTTP_LEN_CHUNKED = HTTP_LEN_CHUNKED;
+    TS_HTTP_LEN_CLOSE = HTTP_LEN_CLOSE;
+    TS_HTTP_LEN_COMPRESS = HTTP_LEN_COMPRESS;
+    TS_HTTP_LEN_DEFLATE = HTTP_LEN_DEFLATE;
+    TS_HTTP_LEN_GZIP = HTTP_LEN_GZIP;
+    TS_HTTP_LEN_IDENTITY = HTTP_LEN_IDENTITY;
+    TS_HTTP_LEN_KEEP_ALIVE = HTTP_LEN_KEEP_ALIVE;
+    TS_HTTP_LEN_MAX_AGE = HTTP_LEN_MAX_AGE;
+    TS_HTTP_LEN_MAX_STALE = HTTP_LEN_MAX_STALE;
+    TS_HTTP_LEN_MIN_FRESH = HTTP_LEN_MIN_FRESH;
+    TS_HTTP_LEN_MUST_REVALIDATE = HTTP_LEN_MUST_REVALIDATE;
+    TS_HTTP_LEN_NONE = HTTP_LEN_NONE;
+    TS_HTTP_LEN_NO_CACHE = HTTP_LEN_NO_CACHE;
+    TS_HTTP_LEN_NO_STORE = HTTP_LEN_NO_STORE;
+    TS_HTTP_LEN_NO_TRANSFORM = HTTP_LEN_NO_TRANSFORM;
+    TS_HTTP_LEN_ONLY_IF_CACHED = HTTP_LEN_ONLY_IF_CACHED;
+    TS_HTTP_LEN_PRIVATE = HTTP_LEN_PRIVATE;
+    TS_HTTP_LEN_PROXY_REVALIDATE = HTTP_LEN_PROXY_REVALIDATE;
+    TS_HTTP_LEN_PUBLIC = HTTP_LEN_PUBLIC;
+    TS_HTTP_LEN_S_MAXAGE = HTTP_LEN_S_MAXAGE;
+
+    http_global_hooks = new HttpAPIHooks;
+    lifecycle_hooks = new LifecycleAPIHooks;
+    global_config_cbs = new ConfigUpdateCbTable;
+
+    if (TS_MAX_API_STATS > 0) {
+      api_rsb = RecAllocateRawStatBlock(TS_MAX_API_STATS);
+      if (NULL == api_rsb) {
+        Warning("Can't allocate API stats block");
+      } else {
+        Debug("sdk", "initialized SDK stats APIs with %d slots", TS_MAX_API_STATS);
+      }
+    } else {
+      api_rsb = NULL;
+    }
+
+    memset(state_arg_table, 0, sizeof(state_arg_table));
+
+    // Setup the version string for returning to plugins
+    ink_strlcpy(traffic_server_version, appVersionInfo.VersionStr, sizeof(traffic_server_version));
+    // Extract the elements.
+    // coverity[secure_coding]
+    if (sscanf(traffic_server_version, "%d.%d.%d", &ts_major_version, &ts_minor_version, &ts_patch_version) != 3) {
+      Warning("Unable to parse traffic server version string '%s'\n", traffic_server_version);
+    }
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// API memory management
+//
+////////////////////////////////////////////////////////////////////
+
+void *
+_TSmalloc(size_t size, const char */* path ATS_UNUSED */)
+{
+  return ats_malloc(size);
+}
+
+void *
+_TSrealloc(void *ptr, size_t size, const char */* path ATS_UNUSED */)
+{
+  return ats_realloc(ptr, size);
+}
+
+// length has to be int64_t and not size_t, since -1 means to call strlen() to get length
+char *
+_TSstrdup(const char *str, int64_t length, const char *path)
+{
+  return _xstrdup(str, length, path);
+}
+
+size_t
+_TSstrlcpy(char *dst, const char *str, size_t siz)
+{
+  return ink_strlcpy(dst, str, siz);
+}
+
+size_t
+_TSstrlcat(char *dst, const char *str, size_t siz)
+{
+  return ink_strlcat(dst, str, siz);
+}
+
+void
+_TSfree(void *ptr)
+{
+  ats_free(ptr);
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// Encoding utility
+//
+////////////////////////////////////////////////////////////////////
+TSReturnCode
+TSBase64Decode(const char *str, size_t str_len, unsigned char *dst, size_t dst_size, size_t *length)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)str) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)dst) == TS_SUCCESS);
+
+  return ats_base64_decode(str, str_len, dst, dst_size, length) ? TS_SUCCESS : TS_ERROR;
+}
+
+TSReturnCode
+TSBase64Encode(const char *str, size_t str_len, char *dst, size_t dst_size, size_t *length)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)str) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)dst) == TS_SUCCESS);
+
+  return ats_base64_encode(str, str_len, dst, dst_size, length) ? TS_SUCCESS : TS_ERROR;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// API utility routines
+//
+////////////////////////////////////////////////////////////////////
+
+unsigned int
+TSrandom()
+{
+  return this_ethread()->generator.random();
+}
+
+double
+TSdrandom()
+{
+  return this_ethread()->generator.drandom();
+}
+
+ink_hrtime
+TShrtime()
+{
+  return ink_get_based_hrtime();
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// API install and plugin locations
+//
+////////////////////////////////////////////////////////////////////
+
+const char *
+TSInstallDirGet(void)
+{
+  return Layout::get()->prefix;
+}
+
+const char *
+TSConfigDirGet(void)
+{
+  return Layout::get()->sysconfdir;
+}
+
+const char *
+TSTrafficServerVersionGet(void)
+{
+  return traffic_server_version;
+}
+
+int TSTrafficServerVersionGetMajor() { return ts_major_version; }
+int TSTrafficServerVersionGetMinor() { return ts_minor_version; }
+int TSTrafficServerVersionGetPatch() { return ts_patch_version; }
+
+const char *
+TSPluginDirGet(void)
+{
+  static char path[PATH_NAME_MAX + 1] = "";
+
+  if (*path == '\0') {
+    char *plugin_dir = NULL;
+    RecGetRecordString_Xmalloc("proxy.config.plugin.plugin_dir", &plugin_dir);
+    if (!plugin_dir) {
+      Error("Unable to read proxy.config.plugin.plugin_dir");
+      return NULL;
+    }
+    Layout::relative_to(path, sizeof(path),
+                        Layout::get()->prefix, plugin_dir);
+    ats_free(plugin_dir);
+  }
+
+  return path;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// Plugin registration
+//
+////////////////////////////////////////////////////////////////////
+
+TSReturnCode
+TSPluginRegister(TSSDKVersion sdk_version, TSPluginRegistrationInfo *plugin_info)
+{
+  PluginSDKVersion version = (PluginSDKVersion)sdk_version;
+
+  if (!plugin_reg_current)
+    return TS_ERROR;
+
+  sdk_assert(sdk_sanity_check_null_ptr((void*) plugin_info) == TS_SUCCESS);
+
+  plugin_reg_current->plugin_registered = true;
+
+  // We're compatible only within the 3.x release
+  if (version >= PLUGIN_SDK_VERSION_3_0 && version < PLUGIN_SDK_VERSION_4_0) {
+    plugin_reg_current->sdk_version = version;
+  } else {
+    plugin_reg_current->sdk_version = PLUGIN_SDK_VERSION_UNKNOWN;
+  }
+
+  if (plugin_info->plugin_name) {
+    plugin_reg_current->plugin_name = ats_strdup(plugin_info->plugin_name);
+  }
+
+  if (plugin_info->vendor_name) {
+    plugin_reg_current->vendor_name = ats_strdup(plugin_info->vendor_name);
+  }
+
+  if (plugin_info->support_email) {
+    plugin_reg_current->support_email = ats_strdup(plugin_info->support_email);
+  }
+
+  return TS_SUCCESS;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// API file management
+//
+////////////////////////////////////////////////////////////////////
+
+TSFile
+TSfopen(const char *filename, const char *mode)
+{
+  FileImpl *file;
+
+  file = new FileImpl;
+  if (!file->fopen(filename, mode)) {
+    delete file;
+    return NULL;
+  }
+
+  return (TSFile)file;
+}
+
+void
+TSfclose(TSFile filep)
+{
+  FileImpl *file = (FileImpl *) filep;
+  file->fclose();
+  delete file;
+}
+
+size_t
+TSfread(TSFile filep, void *buf, size_t length)
+{
+  FileImpl *file = (FileImpl *) filep;
+  return file->fread(buf, length);
+}
+
+size_t
+TSfwrite(TSFile filep, const void *buf, size_t length)
+{
+  FileImpl *file = (FileImpl *) filep;
+  return file->fwrite(buf, length);
+}
+
+void
+TSfflush(TSFile filep)
+{
+  FileImpl *file = (FileImpl *) filep;
+  file->fflush();
+}
+
+char *
+TSfgets(TSFile filep, char *buf, size_t length)
+{
+  FileImpl *file = (FileImpl *) filep;
+  return file->fgets(buf, length);
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// Header component object handles
+//
+////////////////////////////////////////////////////////////////////
+
+TSReturnCode
+TSHandleMLocRelease(TSMBuffer bufp, TSMLoc parent, TSMLoc mloc)
+{
+  MIMEFieldSDKHandle *field_handle;
+  HdrHeapObjImpl *obj = (HdrHeapObjImpl *) mloc;
+
+  if (mloc == TS_NULL_MLOC)
+    return TS_SUCCESS;
+
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+
+  switch (obj->m_type) {
+  case HDR_HEAP_OBJ_URL:
+  case HDR_HEAP_OBJ_HTTP_HEADER:
+  case HDR_HEAP_OBJ_MIME_HEADER:
+    return TS_SUCCESS;
+
+  case HDR_HEAP_OBJ_FIELD_SDK_HANDLE:
+    field_handle = (MIMEFieldSDKHandle *) obj;
+    if (sdk_sanity_check_field_handle(mloc, parent) != TS_SUCCESS)
+      return TS_ERROR;
+
+    sdk_free_field_handle(bufp, field_handle);
+    return TS_SUCCESS;
+
+  default:
+    ink_release_assert(!"invalid mloc");
+    return TS_ERROR;
+  }
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// HdrHeaps (previously known as "Marshal Buffers")
+//
+////////////////////////////////////////////////////////////////////
+
+// TSMBuffer: pointers to HdrHeapSDKHandle objects
+
+TSMBuffer
+TSMBufferCreate(void)
+{
+  TSMBuffer bufp;
+  HdrHeapSDKHandle *new_heap = new HdrHeapSDKHandle;
+
+  new_heap->m_heap = new_HdrHeap();
+  bufp = (TSMBuffer)new_heap;
+  // TODO: Should remove this when memory allocation is guaranteed to fail.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  return bufp;
+}
+
+TSReturnCode
+TSMBufferDestroy(TSMBuffer bufp)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  HdrHeapSDKHandle *sdk_heap = (HdrHeapSDKHandle *)bufp;
+  sdk_heap->m_heap->destroy();
+  delete sdk_heap;
+  return TS_SUCCESS;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// URLs
+//
+////////////////////////////////////////////////////////////////////
+
+// TSMBuffer: pointers to HdrHeapSDKHandle objects
+// TSMLoc:    pointers to URLImpl objects
+TSReturnCode
+TSUrlCreate(TSMBuffer bufp, TSMLoc *locp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr(locp) == TS_SUCCESS);
+
+  if (isWriteable(bufp)) {
+    HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+    *locp = (TSMLoc)url_create(heap);
+    return TS_SUCCESS;
+  }
+  return TS_ERROR;
+}
+
+TSReturnCode
+TSUrlDestroy(TSMBuffer /* bufp ATS_UNUSED */, TSMLoc /* url_loc ATS_UNUSED */)
+{
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSUrlClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_url, TSMLoc *locp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(src_url) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr(locp) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  HdrHeap *s_heap, *d_heap;
+  URLImpl *s_url, *d_url;
+
+  s_heap = ((HdrHeapSDKHandle *) src_bufp)->m_heap;
+  d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  s_url = (URLImpl *) src_url;
+
+  d_url = url_copy(s_url, s_heap, d_heap, (s_heap != d_heap));
+  *locp = (TSMLoc)d_url;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSUrlCopy(TSMBuffer dest_bufp, TSMLoc dest_obj, TSMBuffer src_bufp, TSMLoc src_obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(src_obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(dest_obj) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  HdrHeap *s_heap, *d_heap;
+  URLImpl *s_url, *d_url;
+
+  s_heap = ((HdrHeapSDKHandle *) src_bufp)->m_heap;
+  d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  s_url = (URLImpl *) src_obj;
+  d_url = (URLImpl *) dest_obj;
+
+  url_copy_onto(s_url, s_heap, d_url, d_heap, (s_heap != d_heap));
+  return TS_SUCCESS;
+}
+
+void
+TSUrlPrint(TSMBuffer bufp, TSMLoc obj, TSIOBuffer iobufp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(iobufp) == TS_SUCCESS);
+
+  MIOBuffer *b = (MIOBuffer *) iobufp;
+  IOBufferBlock *blk;
+  int bufindex;
+  int tmp, dumpoffset;
+  int done;
+  URL u;
+
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+  dumpoffset = 0;
+
+  do {
+    blk = b->get_current_block();
+    if (!blk || blk->write_avail() == 0) {
+      b->add_block();
+      blk = b->get_current_block();
+    }
+
+    bufindex = 0;
+    tmp = dumpoffset;
+
+    done = u.print(blk->end(), blk->write_avail(), &bufindex, &tmp);
+
+    dumpoffset += bufindex;
+    b->fill(bufindex);
+  } while (!done);
+}
+
+TSParseResult
+TSUrlParse(TSMBuffer bufp, TSMLoc obj, const char **start, const char *end)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)*start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)end) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_PARSE_ERROR;
+
+  URL u;
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+  url_clear(u.m_url_impl);
+  return (TSParseResult)u.parse(start, end);
+}
+
+int
+TSUrlLengthGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  URLImpl *url_impl = (URLImpl *) obj;
+  return url_length_get(url_impl);
+}
+
+char *
+TSUrlStringGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  URLImpl *url_impl = (URLImpl *) obj;
+  return url_string_get(url_impl, NULL, length, NULL);
+}
+
+typedef const char *(URL::*URLPartGetF) (int *length);
+typedef void (URL::*URLPartSetF) (const char *value, int length);
+
+static const char *
+URLPartGet(TSMBuffer bufp, TSMLoc obj, int *length, URLPartGetF url_f)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  URL u;
+
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+
+  return (u.*url_f)(length);
+}
+
+static TSReturnCode
+URLPartSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length, URLPartSetF url_f)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  URL u;
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+
+  if (!value)
+    length = 0;
+  else if (length < 0)
+    length = strlen(value);
+  (u.*url_f)(value, length);
+
+  return TS_SUCCESS;
+}
+
+const char *
+TSUrlSchemeGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::scheme_get);
+}
+
+TSReturnCode
+TSUrlSchemeSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::scheme_set);
+}
+
+/* Internet specific URLs */
+
+const char *
+TSUrlUserGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::user_get);
+}
+
+TSReturnCode
+TSUrlUserSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::user_set);
+}
+
+const char *
+TSUrlPasswordGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::password_get);
+}
+
+TSReturnCode
+TSUrlPasswordSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::password_set);
+}
+
+const char *
+TSUrlHostGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::host_get);
+}
+
+TSReturnCode
+TSUrlHostSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::host_set);
+}
+
+int
+TSUrlPortGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  URL u;
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+
+  return u.port_get();
+}
+
+TSReturnCode
+TSUrlPortSet(TSMBuffer bufp, TSMLoc obj, int port)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  if (!isWriteable(bufp) || (port < 0))
+    return TS_ERROR;
+
+  URL u;
+
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+  u.port_set(port);
+  return TS_SUCCESS;
+}
+
+/* FTP and HTTP specific URLs  */
+
+const char *
+TSUrlPathGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::path_get);
+}
+
+TSReturnCode
+TSUrlPathSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::path_set);
+}
+
+/* FTP specific URLs */
+
+int
+TSUrlFtpTypeGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  URL u;
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+  return u.type_get();
+}
+
+TSReturnCode
+TSUrlFtpTypeSet(TSMBuffer bufp, TSMLoc obj, int type)
+{
+  //The valid values are : 0, 65('A'), 97('a'),
+  //69('E'), 101('e'), 73 ('I') and 105('i').
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+
+  if ((type == 0 || type=='A' || type=='E' || type=='I' || type=='a' || type=='i' || type=='e') && isWriteable(bufp)) {
+    URL u;
+
+    u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+    u.m_url_impl = (URLImpl *) obj;
+    u.type_set(type);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+/* HTTP specific URLs */
+
+const char *
+TSUrlHttpParamsGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::params_get);
+}
+
+TSReturnCode
+TSUrlHttpParamsSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::params_set);
+}
+
+const char *
+TSUrlHttpQueryGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::query_get);
+}
+
+TSReturnCode
+TSUrlHttpQuerySet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::query_set);
+}
+
+const char *
+TSUrlHttpFragmentGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  return URLPartGet(bufp, obj, length, &URL::fragment_get);
+}
+
+TSReturnCode
+TSUrlHttpFragmentSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  return URLPartSet(bufp, obj, value, length, &URL::fragment_set);
+}
+
+// URL percent encoding
+TSReturnCode
+TSStringPercentEncode(const char* str, int str_len, char *dst, size_t dst_size, size_t *length, const unsigned char *map)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)str) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)dst) == TS_SUCCESS);
+
+  int new_len; // Unfortunately, a lot of the core uses "int" for length's internally...
+
+  if (str_len < 0)
+    str_len = strlen(str);
+
+  sdk_assert(str_len < static_cast<int>(dst_size));
+
+  // TODO: Perhaps we should make escapify_url() deal with const properly...
+  if (NULL == LogUtils::escapify_url(NULL, const_cast<char*>(str), str_len, &new_len, dst, dst_size, map)) {
+    if (length)
+      *length = 0;
+    return TS_ERROR;
+  }
+
+  if (length)
+    *length = new_len;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSStringPercentDecode(const char *str, size_t str_len, char* dst, size_t dst_size, size_t *length)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)str) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)dst) == TS_SUCCESS);
+
+  if (0 == str_len)
+    str_len = strlen(str);
+
+  // return unescapifyStr(str);
+  char *buffer = dst;
+  const char *src =  str;
+  int s = 0; // State, which we don't really use
+
+  // TODO: We should check for "failures" here?
+  unescape_str(buffer, buffer+dst_size, src, src+str_len, s);
+  *buffer = '\0';
+  if (length)
+    *length = (buffer - dst);
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSUrlPercentEncode(TSMBuffer bufp, TSMLoc obj, char *dst, size_t dst_size, size_t *length, const unsigned char *map)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  char *url;
+  int url_len;
+  TSReturnCode ret;
+  URLImpl *url_impl = (URLImpl *)obj;
+
+  // TODO: at some point, it might be nice to allow this to write to a pre-allocated buffer
+  url = url_string_get(url_impl, NULL, &url_len, NULL);
+  ret = TSStringPercentEncode(url, url_len, dst, dst_size, length, map);
+  ats_free(url);
+
+  return ret;
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// MIME Headers
+//
+////////////////////////////////////////////////////////////////////
+
+/**************/
+/* MimeParser */
+/**************/
+
+TSMimeParser
+TSMimeParserCreate(void)
+{
+  TSMimeParser parser = reinterpret_cast<TSMimeParser>(ats_malloc(sizeof(MIMEParser)));
+
+  mime_parser_init((MIMEParser *) parser);
+  return parser;
+}
+
+void
+TSMimeParserClear(TSMimeParser parser)
+{
+  sdk_assert(sdk_sanity_check_mime_parser(parser) == TS_SUCCESS);
+
+  mime_parser_clear((MIMEParser *) parser);
+}
+
+void
+TSMimeParserDestroy(TSMimeParser parser)
+{
+  sdk_assert(sdk_sanity_check_mime_parser(parser) == TS_SUCCESS);
+
+  mime_parser_clear((MIMEParser *) parser);
+  ats_free(parser);
+}
+
+/***********/
+/* MimeHdr */
+/***********/
+
+// TSMBuffer: pointers to HdrHeapSDKHandle objects
+// TSMLoc:    pointers to MIMEFieldSDKHandle objects
+
+TSReturnCode
+TSMimeHdrCreate(TSMBuffer bufp, TSMLoc *locp)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If not allowed, return NULL.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)locp) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  *locp = reinterpret_cast<TSMLoc>(mime_hdr_create(((HdrHeapSDKHandle *) bufp)->m_heap));
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrDestroy(TSMBuffer bufp, TSMLoc obj)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS));
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(obj);
+
+  mime_hdr_destroy(((HdrHeapSDKHandle *) bufp)->m_heap, mh);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc *locp)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If not allowed, return NULL.
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mime_hdr_handle(src_hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(src_hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)locp) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  HdrHeap *s_heap, *d_heap;
+  MIMEHdrImpl *s_mh, *d_mh;
+
+  s_heap = ((HdrHeapSDKHandle *) src_bufp)->m_heap;
+  d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  s_mh = _hdr_mloc_to_mime_hdr_impl(src_hdr);
+
+  d_mh = mime_hdr_clone(s_mh, s_heap, d_heap, (s_heap != d_heap));
+  *locp = (TSMLoc)d_mh;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrCopy(TSMBuffer dest_bufp, TSMLoc dest_obj, TSMBuffer src_bufp, TSMLoc src_obj)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(src_obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(src_obj) == TS_SUCCESS));
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(dest_obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(dest_obj) == TS_SUCCESS));
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  HdrHeap *s_heap, *d_heap;
+  MIMEHdrImpl *s_mh, *d_mh;
+
+  s_heap = ((HdrHeapSDKHandle *) src_bufp)->m_heap;
+  d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  s_mh = _hdr_mloc_to_mime_hdr_impl(src_obj);
+  d_mh = _hdr_mloc_to_mime_hdr_impl(dest_obj);
+
+  mime_hdr_fields_clear(d_heap, d_mh);
+  mime_hdr_copy_onto(s_mh, s_heap, d_mh, d_heap, (s_heap != d_heap));
+  return TS_SUCCESS;
+}
+
+void
+TSMimeHdrPrint(TSMBuffer bufp, TSMLoc obj, TSIOBuffer iobufp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_iocore_structure(iobufp) == TS_SUCCESS);
+
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(obj);
+  MIOBuffer *b = (MIOBuffer *) iobufp;
+  IOBufferBlock *blk;
+  int bufindex;
+  int tmp, dumpoffset = 0;
+  int done;
+
+  do {
+    blk = b->get_current_block();
+    if (!blk || blk->write_avail() == 0) {
+      b->add_block();
+      blk = b->get_current_block();
+    }
+
+    bufindex = 0;
+    tmp = dumpoffset;
+    done = mime_hdr_print(heap, mh, blk->end(), blk->write_avail(), &bufindex, &tmp);
+
+    dumpoffset += bufindex;
+    b->fill(bufindex);
+  } while (!done);
+}
+
+TSParseResult
+TSMimeHdrParse(TSMimeParser parser, TSMBuffer bufp, TSMLoc obj, const char **start, const char *end)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_null_ptr((void*)start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)*start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)end) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_PARSE_ERROR;
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(obj);
+
+  return (TSParseResult)mime_parser_parse((MIMEParser *) parser, ((HdrHeapSDKHandle *) bufp)->m_heap, mh,
+                                          start, end, false, false);
+}
+
+int
+TSMimeHdrLengthGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS));
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(obj);
+  return mime_hdr_length_get(mh);
+}
+
+TSReturnCode
+TSMimeHdrFieldsClear(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS));
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(obj);
+
+  mime_hdr_fields_clear(((HdrHeapSDKHandle *) bufp)->m_heap, mh);
+  return TS_SUCCESS;
+}
+
+int
+TSMimeHdrFieldsCount(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS));
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(obj);
+  return mime_hdr_fields_count(mh);
+}
+
+// The following three helper functions should not be used in plugins! Since they are not used
+// by plugins, there's no need to validate the input.
+const char *
+TSMimeFieldValueGet(TSMBuffer /* bufp ATS_UNUSED */, TSMLoc field_obj, int idx, int *value_len_ptr)
+{
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field_obj;
+
+  if (idx >= 0) {
+    return mime_field_value_get_comma_val(handle->field_ptr, value_len_ptr, idx);
+  } else {
+    return mime_field_value_get(handle->field_ptr, value_len_ptr);
+  }
+
+  *value_len_ptr = 0;
+  return NULL;
+}
+
+void
+TSMimeFieldValueSet(TSMBuffer bufp, TSMLoc field_obj, int idx, const char *value, int length)
+{
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field_obj;
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+
+  if (length == -1)
+    length = strlen(value);
+
+  if (idx >= 0)
+    mime_field_value_set_comma_val(heap, handle->mh, handle->field_ptr, idx, value, length);
+  else
+    mime_field_value_set(heap, handle->mh, handle->field_ptr, value, length, true);
+}
+
+void
+TSMimeFieldValueInsert(TSMBuffer bufp, TSMLoc field_obj, const char *value, int length, int idx)
+{
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field_obj;
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+
+  if (length == -1)
+    length = strlen(value);
+
+  mime_field_value_insert_comma_val(heap, handle->mh, handle->field_ptr, idx, value, length);
+}
+
+
+/****************/
+/* MimeHdrField */
+/****************/
+
+// TSMBuffer: pointers to HdrHeapSDKHandle objects
+// TSMLoc:    pointers to MIMEFieldSDKHandle objects
+
+int
+TSMimeHdrFieldEqual(TSMBuffer bufp, TSMLoc hdr_obj, TSMLoc field1_obj, TSMLoc field2_obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_field_handle(field1_obj, hdr_obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_field_handle(field2_obj, hdr_obj) == TS_SUCCESS);
+
+  MIMEFieldSDKHandle *field1_handle = (MIMEFieldSDKHandle *) field1_obj;
+  MIMEFieldSDKHandle *field2_handle = (MIMEFieldSDKHandle *) field2_obj;
+
+  if ((field1_handle == NULL) || (field2_handle == NULL))
+    return (field1_handle == field2_handle);
+  return (field1_handle->field_ptr == field2_handle->field_ptr);
+}
+
+TSMLoc
+TSMimeHdrFieldGet(TSMBuffer bufp, TSMLoc hdr_obj, int idx)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr_obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr_obj) == TS_SUCCESS));
+  sdk_assert(idx >= 0);
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(hdr_obj);
+  MIMEField *f = mime_hdr_field_get(mh, idx);
+
+  if (f == NULL)
+    return TS_NULL_MLOC;
+
+  MIMEFieldSDKHandle *h = sdk_alloc_field_handle(bufp, mh);
+
+  h->field_ptr = f;
+  return reinterpret_cast<TSMLoc>(h);
+}
+
+TSMLoc
+TSMimeHdrFieldFind(TSMBuffer bufp, TSMLoc hdr_obj, const char *name, int length)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr_obj) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr_obj) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_null_ptr((void*)name) == TS_SUCCESS);
+
+  if (length == -1)
+    length = strlen(name);
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(hdr_obj);
+  MIMEField *f = mime_hdr_field_find(mh, name, length);
+
+  if (f == NULL)
+    return TS_NULL_MLOC;
+
+  MIMEFieldSDKHandle *h = sdk_alloc_field_handle(bufp, mh);
+
+  h->field_ptr = f;
+  return reinterpret_cast<TSMLoc>(h);
+}
+
+TSReturnCode
+TSMimeHdrFieldAppend(TSMBuffer bufp, TSMLoc mh_mloc, TSMLoc field_mloc)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(mh_mloc) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(mh_mloc) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field_mloc) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEField *mh_field;
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(mh_mloc);
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field_mloc;
+
+  //////////////////////////////////////////////////////////////////////
+  // The field passed in field_mloc might have been allocated from    //
+  // inside a MIME header (the correct way), or it might have been    //
+  // created in isolation as a "standalone field" (the old way).      //
+  //                                                                  //
+  // If it's a standalone field (the associated mime header is NULL), //
+  // then we need to now allocate a real field inside the header,     //
+  // copy over the data, and convert the standalone field into a      //
+  // forwarding pointer to the real field, in case it's used again    //
+  //////////////////////////////////////////////////////////////////////
+  if (field_handle->mh == NULL) {
+    HdrHeap *heap = (HdrHeap *) (((HdrHeapSDKHandle *) bufp)->m_heap);
+
+    // allocate a new hdr field and copy any pre-set info
+    mh_field = mime_field_create(heap, mh);
+
+    // FIX: is it safe to copy everything over?
+    memcpy(mh_field, field_handle->field_ptr, sizeof(MIMEField));
+
+    // now set up the forwarding ptr from standalone field to hdr field
+    field_handle->mh = mh;
+    field_handle->field_ptr = mh_field;
+  }
+
+  ink_assert(field_handle->mh == mh);
+  ink_assert(field_handle->field_ptr->m_ptr_name);
+
+  mime_hdr_field_attach(mh, field_handle->field_ptr, 1, NULL);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldRemove(TSMBuffer bufp, TSMLoc mh_mloc, TSMLoc field_mloc)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(mh_mloc) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(mh_mloc) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field_mloc, mh_mloc) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field_mloc;
+
+  if (field_handle->mh != NULL) {
+    MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(mh_mloc);
+    ink_assert(mh == field_handle->mh);
+    sdk_sanity_check_field_handle(field_mloc, mh_mloc);
+    mime_hdr_field_detach(mh, field_handle->field_ptr, false);        // only detach this dup
+  }
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldDestroy(TSMBuffer bufp, TSMLoc mh_mloc, TSMLoc field_mloc)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(mh_mloc) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(mh_mloc) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field_mloc, mh_mloc) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field_mloc;
+
+  if (field_handle->mh == NULL) { // NOT SUPPORTED!!
+    ink_release_assert(!"Failed MH");
+  } else {
+    MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(mh_mloc);
+    HdrHeap *heap = (HdrHeap *) (((HdrHeapSDKHandle *) bufp)->m_heap);
+
+    ink_assert(mh == field_handle->mh);
+    if (sdk_sanity_check_field_handle(field_mloc, mh_mloc) != TS_SUCCESS)
+      return TS_ERROR;
+
+    // detach and delete this field, but not all dups
+    mime_hdr_field_delete(heap, mh, field_handle->field_ptr, false);
+  }
+  // for consistence, the handle will not be released here.
+  // users will be required to do it.
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldCreate(TSMBuffer bufp, TSMLoc mh_mloc, TSMLoc *locp)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If not allowed, return NULL.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(mh_mloc) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(mh_mloc) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_null_ptr((void*)locp) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(mh_mloc);
+  HdrHeap *heap = (HdrHeap *) (((HdrHeapSDKHandle *) bufp)->m_heap);
+  MIMEFieldSDKHandle *h = sdk_alloc_field_handle(bufp, mh);
+
+  h->field_ptr = mime_field_create(heap, mh);
+  *locp = reinterpret_cast<TSMLoc>(h);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldCreateNamed(TSMBuffer bufp, TSMLoc mh_mloc, const char *name, int name_len, TSMLoc *locp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(mh_mloc) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(mh_mloc) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_null_ptr((void*)name) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)locp) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  if (name_len == -1)
+    name_len = strlen(name);
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(mh_mloc);
+  HdrHeap *heap = (HdrHeap *) (((HdrHeapSDKHandle *) bufp)->m_heap);
+  MIMEFieldSDKHandle *h = sdk_alloc_field_handle(bufp, mh);
+  h->field_ptr = mime_field_create_named(heap, mh, name, name_len);
+  *locp = reinterpret_cast<TSMLoc>(h);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldCopy(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMLoc dest_field, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(src_hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(src_hdr) == TS_SUCCESS));
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(dest_hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(dest_hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(src_field, src_hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_field_handle(dest_field, dest_hdr) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  bool dest_attached;
+  MIMEFieldSDKHandle *s_handle = (MIMEFieldSDKHandle *) src_field;
+  MIMEFieldSDKHandle *d_handle = (MIMEFieldSDKHandle *) dest_field;
+  HdrHeap *d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+
+  // FIX: This tortuous detach/change/attach algorithm is due to the
+  //      fact that we can't change the name of an attached header (assertion)
+
+  // TODO: This is never used ... is_live() has no side effects, so this should be ok
+  // to not call, so commented out
+  // src_attached = (s_handle->mh && s_handle->field_ptr->is_live());
+  dest_attached = (d_handle->mh && d_handle->field_ptr->is_live());
+
+  if (dest_attached)
+    mime_hdr_field_detach(d_handle->mh, d_handle->field_ptr, false);
+
+  mime_field_name_value_set(d_heap, d_handle->mh, d_handle->field_ptr,
+                            s_handle->field_ptr->m_wks_idx,
+                            s_handle->field_ptr->m_ptr_name,
+                            s_handle->field_ptr->m_len_name,
+                            s_handle->field_ptr->m_ptr_value, s_handle->field_ptr->m_len_value, 0, 0, true);
+
+  if (dest_attached)
+    mime_hdr_field_attach(d_handle->mh, d_handle->field_ptr, 1, NULL);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldClone(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field, TSMLoc *locp)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If not allowed, return NULL.
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(dest_hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(dest_hdr) == TS_SUCCESS));
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(src_hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(src_hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(src_field, src_hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)locp) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  // This is sort of sub-optimal, since we'll check the args again. TODO.
+  if (TSMimeHdrFieldCreate(dest_bufp, dest_hdr, locp) == TS_SUCCESS) {
+    TSMimeHdrFieldCopy(dest_bufp, dest_hdr, *locp, src_bufp, src_hdr, src_field);
+    return TS_SUCCESS;
+  }
+  // TSMimeHdrFieldCreate() failed for some reason.
+  return TS_ERROR;
+}
+
+TSReturnCode
+TSMimeHdrFieldCopyValues(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMLoc dest_field, TSMBuffer src_bufp, TSMLoc src_hdr,
+                         TSMLoc src_field)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(src_hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(src_hdr) == TS_SUCCESS));
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(dest_hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(dest_hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(src_field, src_hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_field_handle(dest_field, dest_hdr) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *s_handle = (MIMEFieldSDKHandle *) src_field;
+  MIMEFieldSDKHandle *d_handle = (MIMEFieldSDKHandle *) dest_field;
+  HdrHeap *d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  MIMEField *s_field, *d_field;
+
+  s_field = s_handle->field_ptr;
+  d_field = d_handle->field_ptr;
+  mime_field_value_set(d_heap, d_handle->mh, d_field, s_field->m_ptr_value, s_field->m_len_value, true);
+  return TS_SUCCESS;
+}
+
+// TODO: This is implemented horribly slowly, but who's using it anyway?
+//       If we threaded all the MIMEFields, this function could be easier,
+//       but we'd have to print dups in order and we'd need a flag saying
+//       end of dup list or dup follows.
+TSMLoc
+TSMimeHdrFieldNext(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+
+  if (handle->mh == NULL)
+    return TS_NULL_MLOC;
+
+  int slotnum = mime_hdr_field_slotnum(handle->mh, handle->field_ptr);
+  if (slotnum == -1)
+    return TS_NULL_MLOC;
+
+  while (1) {
+    ++slotnum;
+    MIMEField *f = mime_hdr_field_get_slotnum(handle->mh, slotnum);
+
+    if (f == NULL)
+      return TS_NULL_MLOC;
+    if (f->is_live()) {
+      MIMEFieldSDKHandle *h = sdk_alloc_field_handle(bufp, handle->mh);
+
+      h->field_ptr = f;
+      return reinterpret_cast<TSMLoc>(h);
+    }
+  }
+  return TS_NULL_MLOC; // Shouldn't happen.
+}
+
+TSMLoc
+TSMimeHdrFieldNextDup(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  MIMEHdrImpl *mh = _hdr_mloc_to_mime_hdr_impl(hdr);
+  MIMEFieldSDKHandle *field_handle = (MIMEFieldSDKHandle *) field;
+  MIMEField *next = field_handle->field_ptr->m_next_dup;
+  if (next == NULL)
+    return TS_NULL_MLOC;
+
+  MIMEFieldSDKHandle *next_handle = sdk_alloc_field_handle(bufp, mh);
+  next_handle->field_ptr = next;
+  return (TSMLoc)next_handle;
+}
+
+int
+TSMimeHdrFieldLengthGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  return mime_field_length_get(handle->field_ptr);
+}
+
+const char *
+TSMimeHdrFieldNameGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int *length)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  return mime_field_name_get(handle->field_ptr, length);
+}
+
+TSReturnCode
+TSMimeHdrFieldNameSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, const char *name, int length)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) name) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  if (length == -1)
+    length = strlen(name);
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+
+  int attached = (handle->mh && handle->field_ptr->is_live());
+
+  if (attached)
+    mime_hdr_field_detach(handle->mh, handle->field_ptr, false);
+
+  handle->field_ptr->name_set(heap, handle->mh, name, length);
+
+  if (attached)
+    mime_hdr_field_attach(handle->mh, handle->field_ptr, 1, NULL);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValuesClear(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+
+  /**
+   * Modified the string value passed from an empty string ("") to NULL.
+   * An empty string is also considered to be a token. The correct value of
+   * the field after this function should be NULL.
+   */
+  mime_field_value_set(heap, handle->mh, handle->field_ptr, NULL, 0, 1);
+  return TS_SUCCESS;
+}
+
+int
+TSMimeHdrFieldValuesCount(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  return mime_field_value_get_comma_val_count(handle->field_ptr);
+}
+
+const char*
+TSMimeHdrFieldValueStringGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int *value_len_ptr) {
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) value_len_ptr) == TS_SUCCESS);
+
+  return TSMimeFieldValueGet(bufp, field, idx, value_len_ptr);
+}
+
+time_t
+TSMimeHdrFieldValueDateGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  int value_len;
+  const char *value_str = TSMimeFieldValueGet(bufp, field, -1, &value_len);
+
+  if (value_str == NULL)
+    return (time_t) 0;
+
+  return mime_parse_date(value_str, value_str + value_len);
+}
+
+int
+TSMimeHdrFieldValueIntGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  int value_len;
+  const char *value_str = TSMimeFieldValueGet(bufp, field, idx, &value_len);
+
+  if (value_str == NULL)
+    return 0;
+
+  return mime_parse_int(value_str, value_str + value_len);
+}
+
+int64_t
+TSMimeHdrFieldValueInt64Get(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  int value_len;
+  const char *value_str = TSMimeFieldValueGet(bufp, field, idx, &value_len);
+
+  if (value_str == NULL)
+    return 0;
+
+  return mime_parse_int64(value_str, value_str + value_len);
+}
+
+unsigned int
+TSMimeHdrFieldValueUintGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  int value_len;
+  const char *value_str = TSMimeFieldValueGet(bufp, field, idx, &value_len);
+
+  if (value_str == NULL)
+    return 0;
+
+  return mime_parse_uint(value_str, value_str + value_len);
+}
+
+TSReturnCode
+TSMimeHdrFieldValueStringSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, const char *value, int length)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) value) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  if (length == -1)
+    length = strlen(value);
+
+  TSMimeFieldValueSet(bufp, field, idx, value, length);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueDateSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, time_t value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  char tmp[33];
+  int len = mime_format_date(tmp, value);
+
+    // idx is ignored and we overwrite all existing values
+    // TSMimeFieldValueSet(bufp, field_obj, idx, tmp, len);
+  TSMimeFieldValueSet(bufp, field, -1, tmp, len);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueIntSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  char tmp[16];
+  int len = mime_format_int(tmp, value, sizeof(tmp));
+
+  TSMimeFieldValueSet(bufp, field, idx, tmp, len);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueInt64Set(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int64_t value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  char tmp[20];
+  int len = mime_format_int64(tmp, value, sizeof(tmp));
+
+  TSMimeFieldValueSet(bufp, field, idx, tmp, len);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueUintSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, unsigned int value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  char tmp[16];
+  int len = mime_format_uint(tmp, value, sizeof(tmp));
+
+  TSMimeFieldValueSet(bufp, field, idx, tmp, len);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueAppend(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, const char *value, int length)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)value) == TS_SUCCESS);
+  sdk_assert(idx >= 0);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+
+  if (length == -1)
+    length = strlen(value);
+  mime_field_value_extend_comma_val(heap, handle->mh, handle->field_ptr, idx, value, length);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueStringInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, const char *value, int length)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR, else return TS_SUCCESS.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) value) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  if (length == -1)
+    length = strlen(value);
+  TSMimeFieldValueInsert(bufp, field, value, length, idx);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueIntInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR, else return TS_SUCCESS.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  char tmp[16];
+  int len = mime_format_int(tmp, value, sizeof(tmp));
+
+  TSMimeFieldValueInsert(bufp, field, tmp, len, idx);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueUintInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, unsigned int value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR, else return TS_SUCCESS.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  char tmp[16];
+  int len = mime_format_uint(tmp, value, sizeof(tmp));
+
+  TSMimeFieldValueInsert(bufp, field, tmp, len, idx);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueDateInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, time_t value)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR, else return TS_SUCCESS
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  if (TSMimeHdrFieldValuesClear(bufp, hdr, field) == TS_ERROR)
+    return TS_ERROR;
+
+  char tmp[33];
+  int len = mime_format_date(tmp, value);
+    // idx ignored, overwrite all exisiting values
+    // (void)TSMimeFieldValueInsert(bufp, field_obj, tmp, len, idx);
+  (void) TSMimeFieldValueSet(bufp, field, -1, tmp, len);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMimeHdrFieldValueDelete(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert((sdk_sanity_check_mime_hdr_handle(hdr) == TS_SUCCESS) ||
+             (sdk_sanity_check_http_hdr_handle(hdr) == TS_SUCCESS));
+  sdk_assert(sdk_sanity_check_field_handle(field, hdr) == TS_SUCCESS);
+  sdk_assert(idx >= 0);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  MIMEFieldSDKHandle *handle = (MIMEFieldSDKHandle *) field;
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+
+  mime_field_value_delete_comma_val(heap, handle->mh, handle->field_ptr, idx);
+  return TS_SUCCESS;
+}
+
+/**************/
+/* HttpParser */
+/**************/
+TSHttpParser
+TSHttpParserCreate(void)
+{
+  TSHttpParser parser = reinterpret_cast<TSHttpParser>(ats_malloc(sizeof(HTTPParser)));
+  http_parser_init((HTTPParser *) parser);
+
+  return parser;
+}
+
+void
+TSHttpParserClear(TSHttpParser parser)
+{
+  sdk_assert(sdk_sanity_check_http_parser(parser) == TS_SUCCESS);
+  http_parser_clear((HTTPParser *) parser);
+}
+
+void
+TSHttpParserDestroy(TSHttpParser parser)
+{
+  sdk_assert(sdk_sanity_check_http_parser(parser) == TS_SUCCESS);
+  http_parser_clear((HTTPParser *) parser);
+  ats_free(parser);
+}
+
+/***********/
+/* HttpHdr */
+/***********/
+
+
+TSMLoc
+TSHttpHdrCreate(TSMBuffer bufp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+
+  HTTPHdr h;
+  h.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  h.create(HTTP_TYPE_UNKNOWN);
+  return (TSMLoc)(h.m_http);
+}
+
+void
+TSHttpHdrDestroy(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  // No more objects counts in heap or deallocation
+  //   so do nothing!
+
+  // HDR FIX ME - Did this free the MBuffer in Pete's old system
+}
+
+TSReturnCode
+TSHttpHdrClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc *locp)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If not allowed, return NULL.
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(src_hdr) == TS_SUCCESS);
+
+  if (!isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  HdrHeap *s_heap, *d_heap;
+  HTTPHdrImpl *s_hh, *d_hh;
+
+  s_heap = ((HdrHeapSDKHandle *) src_bufp)->m_heap;
+  d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  s_hh = (HTTPHdrImpl *) src_hdr;
+
+  if (s_hh->m_type != HDR_HEAP_OBJ_HTTP_HEADER)
+    return TS_ERROR;
+
+  // TODO: This is never used
+  // inherit_strs = (s_heap != d_heap ? true : false);
+  d_hh = http_hdr_clone(s_hh, s_heap, d_heap);
+  *locp = (TSMLoc)d_hh;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpHdrCopy(TSMBuffer dest_bufp, TSMLoc dest_obj, TSMBuffer src_bufp, TSMLoc src_obj)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(src_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(dest_bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(dest_obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(src_obj) == TS_SUCCESS);
+
+  if (! isWriteable(dest_bufp))
+    return TS_ERROR;
+
+  bool inherit_strs;
+  HdrHeap *s_heap, *d_heap;
+  HTTPHdrImpl *s_hh, *d_hh;
+
+  s_heap = ((HdrHeapSDKHandle *) src_bufp)->m_heap;
+  d_heap = ((HdrHeapSDKHandle *) dest_bufp)->m_heap;
+  s_hh = (HTTPHdrImpl *) src_obj;
+  d_hh = (HTTPHdrImpl *) dest_obj;
+
+  if ((s_hh->m_type != HDR_HEAP_OBJ_HTTP_HEADER) || (d_hh->m_type != HDR_HEAP_OBJ_HTTP_HEADER))
+    return TS_ERROR;
+
+  inherit_strs = (s_heap != d_heap ? true : false);
+  TSHttpHdrTypeSet(dest_bufp, dest_obj, (TSHttpType) (s_hh->m_polarity));
+  http_hdr_copy_onto(s_hh, s_heap, d_hh, d_heap, inherit_strs);
+  return TS_SUCCESS;
+}
+
+void
+TSHttpHdrPrint(TSMBuffer bufp, TSMLoc obj, TSIOBuffer iobufp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(iobufp) == TS_SUCCESS);
+
+  MIOBuffer *b = (MIOBuffer *) iobufp;
+  IOBufferBlock *blk;
+  HTTPHdr h;
+  int bufindex;
+  int tmp, dumpoffset;
+  int done;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+
+  dumpoffset = 0;
+  do {
+    blk = b->get_current_block();
+    if (!blk || blk->write_avail() == 0) {
+      b->add_block();
+      blk = b->get_current_block();
+    }
+
+    bufindex = 0;
+    tmp = dumpoffset;
+
+    done = h.print(blk->end(), blk->write_avail(), &bufindex, &tmp);
+
+    dumpoffset += bufindex;
+    b->fill(bufindex);
+  } while (!done);
+}
+
+TSParseResult
+TSHttpHdrParseReq(TSHttpParser parser, TSMBuffer bufp, TSMLoc obj, const char **start, const char *end)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)*start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)end) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_PARSE_ERROR;
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+  TSHttpHdrTypeSet(bufp, obj, TS_HTTP_TYPE_REQUEST);
+  return (TSParseResult)h.parse_req((HTTPParser *) parser, start, end, false);
+}
+
+TSParseResult
+TSHttpHdrParseResp(TSHttpParser parser, TSMBuffer bufp, TSMLoc obj, const char **start, const char *end)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)*start) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)end) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_PARSE_ERROR;
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+  TSHttpHdrTypeSet(bufp, obj, TS_HTTP_TYPE_RESPONSE);
+  return (TSParseResult)h.parse_resp((HTTPParser *) parser, start, end, false);
+}
+
+int
+TSHttpHdrLengthGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+  return h.length_get();
+}
+
+TSHttpType
+TSHttpHdrTypeGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  HTTPHdr h;
+  SET_HTTP_HDR(h, bufp, obj);
+  /* Don't need the assert as the check is done in sdk_sanity_check_http_hdr_handle
+     ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+   */
+  return (TSHttpType)h.type_get();
+}
+
+TSReturnCode
+TSHttpHdrTypeSet(TSMBuffer bufp, TSMLoc obj, TSHttpType type)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert((type >= TS_HTTP_TYPE_UNKNOWN) && (type <= TS_HTTP_TYPE_RESPONSE));
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+
+  // FIX: why are we using an HTTPHdr here?  why can't we
+  //      just manipulate the impls directly?
+
+  // In Pete's MBuffer system you can change the type
+  //   at will.  Not so anymore.  We need to try to
+  //   fake the difference.  We not going to let
+  //   people change the types of a header.  If they
+  //   try, too bad.
+  if (h.m_http->m_polarity == HTTP_TYPE_UNKNOWN) {
+    if (type == (TSHttpType) HTTP_TYPE_REQUEST) {
+      h.m_http->u.req.m_url_impl = url_create(h.m_heap);
+      h.m_http->m_polarity = (HTTPType) type;
+    } else if (type == (TSHttpType) HTTP_TYPE_RESPONSE) {
+      h.m_http->m_polarity = (HTTPType) type;
+    }
+  }
+  return TS_SUCCESS;
+}
+
+int
+TSHttpHdrVersionGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  HTTPVersion ver = h.version_get();
+  return ver.m_version;
+}
+
+TSReturnCode
+TSHttpHdrVersionSet(TSMBuffer bufp, TSMLoc obj, int ver)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  HTTPHdr h;
+  HTTPVersion version(ver);
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+
+  h.version_set(version);
+  return TS_SUCCESS;
+}
+
+const char *
+TSHttpHdrMethodGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  return h.method_get(length);
+}
+
+TSReturnCode
+TSHttpHdrMethodSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)value) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  if (length < 0)
+    length = strlen(value);
+
+  h.method_set(value, length);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpHdrUrlGet(TSMBuffer bufp, TSMLoc obj, TSMLoc *locp)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  HTTPHdrImpl *hh = (HTTPHdrImpl *) obj;
+
+  if (hh->m_polarity != HTTP_TYPE_REQUEST)
+    return TS_ERROR;
+
+  *locp = ((TSMLoc)hh->u.req.m_url_impl);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpHdrUrlSet(TSMBuffer bufp, TSMLoc obj, TSMLoc url)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(url) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  HdrHeap *heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  HTTPHdrImpl *hh = (HTTPHdrImpl *) obj;
+
+  if (hh->m_type != HDR_HEAP_OBJ_HTTP_HEADER)
+    return TS_ERROR;
+
+  URLImpl *url_impl = (URLImpl *) url;
+  http_hdr_url_set(heap, hh, url_impl);
+  return TS_SUCCESS;
+}
+
+TSHttpStatus
+TSHttpHdrStatusGet(TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  return (TSHttpStatus)h.status_get();
+}
+
+TSReturnCode
+TSHttpHdrStatusSet(TSMBuffer bufp, TSMLoc obj, TSHttpStatus status)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+  h.status_set((HTTPStatus) status);
+  return TS_SUCCESS;
+}
+
+const char *
+TSHttpHdrReasonGet(TSMBuffer bufp, TSMLoc obj, int *length)
+{
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  return h.reason_get(length);
+}
+
+TSReturnCode
+TSHttpHdrReasonSet(TSMBuffer bufp, TSMLoc obj, const char *value, int length)
+{
+  // Allow to modify the buffer only
+  // if bufp is modifiable. If bufp is not modifiable return
+  // TS_ERROR. If allowed, return TS_SUCCESS. Changed the
+  // return value of function from void to TSReturnCode.
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_http_hdr_handle(obj) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) value) == TS_SUCCESS);
+
+  if (!isWriteable(bufp))
+    return TS_ERROR;
+
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+  /* Don't need the assert as the check is done in sdk_sanity_check_http_hdr_handle
+     ink_assert(h.m_http->m_type == HDR_HEAP_OBJ_HTTP_HEADER);
+  */
+
+  if (length < 0)
+    length = strlen(value);
+  h.reason_set(value, length);
+  return TS_SUCCESS;
+}
+
+const char *
+TSHttpHdrReasonLookup(TSHttpStatus status)
+{
+  return http_hdr_reason_lookup((HTTPStatus) status);
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// Cache
+//
+////////////////////////////////////////////////////////////////////
+
+inline TSReturnCode
+sdk_sanity_check_cachekey(TSCacheKey key)
+{
+  if (NULL == key)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSCacheKey
+TSCacheKeyCreate(void)
+{
+  TSCacheKey key = (TSCacheKey)new CacheInfo();
+
+  // TODO: Probably remove this when we can be use "NEW" can't fail.
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+  return key;
+}
+
+TSReturnCode
+TSCacheKeyDigestSet(TSCacheKey key, const char *input, int length)
+{
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure((void*) input) == TS_SUCCESS);
+  sdk_assert(length > 0);
+
+  if (((CacheInfo *) key)->magic != CACHE_INFO_MAGIC_ALIVE)
+    return TS_ERROR;
+
+  ((CacheInfo *) key)->cache_key.encodeBuffer((char *) input, length);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSCacheKeyDigestFromUrlSet(TSCacheKey key, TSMLoc url)
+{
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  if (((CacheInfo *) key)->magic != CACHE_INFO_MAGIC_ALIVE)
+    return TS_ERROR;
+
+  url_MD5_get((URLImpl *) url, &((CacheInfo *) key)->cache_key);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSCacheKeyDataTypeSet(TSCacheKey key, TSCacheDataType type)
+{
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  if (((CacheInfo *) key)->magic != CACHE_INFO_MAGIC_ALIVE)
+    return TS_ERROR;
+
+  switch (type) {
+  case TS_CACHE_DATA_TYPE_NONE:
+    ((CacheInfo *) key)->frag_type = CACHE_FRAG_TYPE_NONE;
+    break;
+  case TS_CACHE_DATA_TYPE_OTHER:      /* other maps to http */
+  case TS_CACHE_DATA_TYPE_HTTP:
+    ((CacheInfo *) key)->frag_type = CACHE_FRAG_TYPE_HTTP;
+    break;
+  default:
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSCacheKeyHostNameSet(TSCacheKey key, const char *hostname, int host_len)
+{
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)hostname) == TS_SUCCESS);
+  sdk_assert(host_len > 0);
+
+  if (((CacheInfo *) key)->magic != CACHE_INFO_MAGIC_ALIVE)
+    return TS_ERROR;
+
+  CacheInfo *i = (CacheInfo *) key;
+  /* need to make a copy of the hostname. The caller
+     might deallocate it anytime in the future */
+  i->hostname = (char *)ats_malloc(host_len);
+  memcpy(i->hostname, hostname, host_len);
+  i->len = host_len;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSCacheKeyPinnedSet(TSCacheKey key, time_t pin_in_cache)
+{
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  if (((CacheInfo *) key)->magic != CACHE_INFO_MAGIC_ALIVE)
+    return TS_ERROR;
+
+  CacheInfo *i = (CacheInfo *) key;
+  i->pin_in_cache = pin_in_cache;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSCacheKeyDestroy(TSCacheKey key)
+{
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  if (((CacheInfo *) key)->magic != CACHE_INFO_MAGIC_ALIVE)
+    return TS_ERROR;
+
+  CacheInfo *i = (CacheInfo *) key;
+
+  ats_free(i->hostname);
+  i->magic = CACHE_INFO_MAGIC_DEAD;
+  delete i;
+  return TS_SUCCESS;
+}
+
+TSCacheHttpInfo
+TSCacheHttpInfoCopy(TSCacheHttpInfo infop)
+{
+  CacheHTTPInfo *new_info = new CacheHTTPInfo;
+
+  new_info->copy((CacheHTTPInfo *) infop);
+  return reinterpret_cast<TSCacheHttpInfo>(new_info);
+}
+
+void
+TSCacheHttpInfoReqGet(TSCacheHttpInfo infop, TSMBuffer *bufp, TSMLoc *obj)
+{
+  CacheHTTPInfo *info = (CacheHTTPInfo *)infop;
+
+  *(reinterpret_cast<HTTPHdr**>(bufp)) = info->request_get();
+  *obj = reinterpret_cast<TSMLoc>(info->request_get()->m_http);
+  sdk_sanity_check_mbuffer(*bufp);
+}
+
+
+void
+TSCacheHttpInfoRespGet(TSCacheHttpInfo infop, TSMBuffer *bufp, TSMLoc *obj)
+{
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+
+  *(reinterpret_cast<HTTPHdr**>(bufp)) = info->response_get();
+  *obj = reinterpret_cast<TSMLoc>(info->response_get()->m_http);
+  sdk_sanity_check_mbuffer(*bufp);
+}
+
+time_t
+TSCacheHttpInfoReqSentTimeGet(TSCacheHttpInfo infop)
+{
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  return info->request_sent_time_get();
+}
+
+time_t
+TSCacheHttpInfoRespReceivedTimeGet(TSCacheHttpInfo infop)
+{
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  return info->response_received_time_get();
+}
+
+int64_t
+TSCacheHttpInfoSizeGet(TSCacheHttpInfo infop)
+{
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  return info->object_size_get();
+}
+
+void
+TSCacheHttpInfoReqSet(TSCacheHttpInfo infop, TSMBuffer bufp, TSMLoc obj)
+{
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  info->request_set(&h);
+}
+
+
+void
+TSCacheHttpInfoRespSet(TSCacheHttpInfo infop, TSMBuffer bufp, TSMLoc obj)
+{
+  HTTPHdr h;
+
+  SET_HTTP_HDR(h, bufp, obj);
+
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  info->response_set(&h);
+}
+
+
+int
+TSCacheHttpInfoVector(TSCacheHttpInfo infop, void *data, int length)
+{
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  CacheHTTPInfoVector vector;
+
+  vector.insert(info);
+
+  int size = vector.marshal_length();
+
+  if (size > length)
+    // error
+    return 0;
+
+  return vector.marshal((char *) data, length);
+}
+
+
+void
+TSCacheHttpInfoDestroy(TSCacheHttpInfo infop)
+{
+  ((CacheHTTPInfo *) infop)->destroy();
+}
+
+TSCacheHttpInfo
+TSCacheHttpInfoCreate(void)
+{
+  CacheHTTPInfo *info = new CacheHTTPInfo;
+  info->create();
+
+  return reinterpret_cast<TSCacheHttpInfo>(info);
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// Configuration
+//
+////////////////////////////////////////////////////////////////////
+
+unsigned int
+TSConfigSet(unsigned int id, void *data, TSConfigDestroyFunc funcp)
+{
+  INKConfigImpl *config = new INKConfigImpl;
+  config->mdata = data;
+  config->m_destroy_func = funcp;
+  return configProcessor.set(id, config);
+}
+
+TSConfig
+TSConfigGet(unsigned int id)
+{
+  return reinterpret_cast<TSConfig>(configProcessor.get(id));
+}
+
+void
+TSConfigRelease(unsigned int id, TSConfig configp)
+{
+  configProcessor.release(id, (ConfigInfo *) configp);
+}
+
+void *
+TSConfigDataGet(TSConfig configp)
+{
+  INKConfigImpl *config = (INKConfigImpl *) configp;
+  return config->mdata;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// Management
+//
+////////////////////////////////////////////////////////////////////
+
+void
+TSMgmtUpdateRegister(TSCont contp, const char *plugin_name)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)plugin_name) == TS_SUCCESS);
+
+  global_config_cbs->insert((INKContInternal *)contp, plugin_name);
+}
+
+TSReturnCode
+TSMgmtIntGet(const char *var_name, TSMgmtInt *result)
+{
+  return RecGetRecordInt((char *) var_name, (RecInt *) result) == REC_ERR_OKAY ? TS_SUCCESS : TS_ERROR;
+}
+
+TSReturnCode
+TSMgmtCounterGet(const char *var_name, TSMgmtCounter *result)
+{
+  return RecGetRecordCounter((char *) var_name, (RecCounter *) result) == REC_ERR_OKAY ? TS_SUCCESS : TS_ERROR;
+}
+
+TSReturnCode
+TSMgmtFloatGet(const char *var_name, TSMgmtFloat *result)
+{
+  return RecGetRecordFloat((char *) var_name, (RecFloat *) result) == REC_ERR_OKAY ? TS_SUCCESS : TS_ERROR;
+}
+
+TSReturnCode
+TSMgmtStringGet(const char *var_name, TSMgmtString *result)
+{
+  RecString tmp = 0;
+  (void) RecGetRecordString_Xmalloc((char *) var_name, &tmp);
+
+  if (tmp) {
+    *result = tmp;
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+////////////////////////////////////////////////////////////////////
+//
+// Continuations
+//
+////////////////////////////////////////////////////////////////////
+
+TSCont
+TSContCreate(TSEventFunc funcp, TSMutex mutexp)
+{
+  // mutexp can be NULL
+  if (mutexp != NULL)
+    sdk_assert(sdk_sanity_check_mutex(mutexp) == TS_SUCCESS);
+
+  INKContInternal *i = INKContAllocator.alloc();
+
+  i->init(funcp, mutexp);
+  return (TSCont)i;
+}
+
+void
+TSContDestroy(TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  INKContInternal *i = (INKContInternal *) contp;
+
+  i->destroy();
+}
+
+void
+TSContDataSet(TSCont contp, void *data)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  INKContInternal *i = (INKContInternal *) contp;
+
+  i->mdata = data;
+}
+
+void *
+TSContDataGet(TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  INKContInternal *i = (INKContInternal *) contp;
+
+  return i->mdata;
+}
+
+TSAction
+TSContSchedule(TSCont contp, ink_hrtime timeout, TSThreadPool tp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  INKContInternal *i = (INKContInternal *) contp;
+  TSAction action;
+
+  if (ink_atomic_increment((int *) &i->m_event_count, 1) < 0)
+    ink_assert (!"not reached");
+
+  EventType etype;
+
+  switch (tp) {
+  case TS_THREAD_POOL_NET:
+  case TS_THREAD_POOL_DEFAULT:
+    etype = ET_NET;
+    break;
+  case TS_THREAD_POOL_TASK:
+      etype = ET_TASK;
+      break;
+  case TS_THREAD_POOL_SSL:
+    etype = ET_TASK; // Should be ET_SSL
+    break;
+  case TS_THREAD_POOL_DNS:
+    etype = ET_DNS;
+    break;
+  case TS_THREAD_POOL_REMAP:
+    etype = ET_TASK; // Should be ET_REMAP
+    break;
+  case TS_THREAD_POOL_CLUSTER:
+    etype = ET_CLUSTER;
+    break;
+  case TS_THREAD_POOL_UDP:
+    etype = ET_UDP;
+    break;
+  default:
+    etype = ET_TASK;
+    break;
+  }
+
+  if (timeout == 0) {
+    action = reinterpret_cast<TSAction>(eventProcessor.schedule_imm(i, etype));
+  } else {
+    action = reinterpret_cast<TSAction>(eventProcessor.schedule_in(i, HRTIME_MSECONDS(timeout), etype));
+  }
+
+/* This is a hack. SHould be handled in ink_types */
+  action = (TSAction) ((uintptr_t) action | 0x1);
+  return action;
+}
+
+TSAction
+TSContScheduleEvery(TSCont contp, ink_hrtime every, TSThreadPool tp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  INKContInternal *i = (INKContInternal *) contp;
+  TSAction action;
+
+  if (ink_atomic_increment((int *) &i->m_event_count, 1) < 0)
+    ink_assert (!"not reached");
+
+  EventType etype;
+
+  switch (tp) {
+  case TS_THREAD_POOL_NET:
+  case TS_THREAD_POOL_DEFAULT:
+    etype = ET_NET;
+    break;
+  case TS_THREAD_POOL_TASK:
+    etype = ET_TASK;
+    break;
+  default:
+    etype = ET_TASK;
+    break;
+  }
+
+  action = reinterpret_cast<TSAction>(eventProcessor.schedule_every(i, HRTIME_MSECONDS(every), etype));
+
+  /* This is a hack. SHould be handled in ink_types */
+  action = (TSAction) ((uintptr_t) action | 0x1);
+  return action;
+}
+
+TSAction
+TSHttpSchedule(TSCont contp, TSHttpTxn txnp, ink_hrtime timeout)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure (contp) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  INKContInternal *i = (INKContInternal *) contp;
+
+  if (ink_atomic_increment((int *) &i->m_event_count, 1) < 0)
+    ink_assert (!"not reached");
+
+  TSAction action;
+  Continuation *cont  = (Continuation*)contp;
+  HttpSM *sm = (HttpSM*)txnp;
+
+  sm->set_http_schedule(cont);
+
+  if (timeout == 0) {
+    action = reinterpret_cast<TSAction>(eventProcessor.schedule_imm(sm, ET_NET));
+  } else {
+    action = reinterpret_cast<TSAction>(eventProcessor.schedule_in(sm, HRTIME_MSECONDS (timeout), ET_NET));
+  }
+
+  action = (TSAction) ((uintptr_t) action | 0x1);
+  return action;
+}
+
+int
+TSContCall(TSCont contp, TSEvent event, void *edata)
+{
+  Continuation *c = (Continuation *) contp;
+  return c->handleEvent((int) event, edata);
+}
+
+TSMutex
+TSContMutexGet(TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  Continuation *c = (Continuation *)contp;
+  return (TSMutex) ((ProxyMutex *)c->mutex);
+}
+
+
+/* HTTP hooks */
+
+void
+TSHttpHookAdd(TSHttpHookID id, TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_hook_id(id) == TS_SUCCESS);
+
+  http_global_hooks->append(id, (INKContInternal *)contp);
+}
+
+void
+TSLifecycleHookAdd(TSLifecycleHookID id, TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_lifecycle_hook_id(id) == TS_SUCCESS);
+
+  lifecycle_hooks->append(id, (INKContInternal *)contp);
+}
+
+void
+TSHttpIcpDynamicSet(int value)
+{
+  int32_t old_value, new_value;
+
+  new_value = (value == 0) ? 0 : 1;
+  old_value = icp_dynamic_enabled;
+  while (old_value != new_value) {
+    if (ink_atomic_cas(&icp_dynamic_enabled, old_value, new_value))
+      break;
+    old_value = icp_dynamic_enabled;
+  }
+}
+
+/* HTTP sessions */
+void
+TSHttpSsnHookAdd(TSHttpSsn ssnp, TSHttpHookID id, TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_hook_id(id) == TS_SUCCESS);
+
+  HttpClientSession *cs = (HttpClientSession *) ssnp;
+  cs->ssn_hook_append(id, (INKContInternal *) contp);
+}
+
+int
+TSHttpSsnTransactionCount(TSHttpSsn ssnp)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+
+  HttpClientSession* cs = (HttpClientSession*)ssnp;
+  return cs->get_transact_count();
+}
+
+class TSHttpSsnCallback : public Continuation
+{
+public:
+  TSHttpSsnCallback(HttpClientSession *cs, TSEvent event)
+    : Continuation(cs->mutex), m_cs(cs), m_event(event)
+  {
+    SET_HANDLER(&TSHttpSsnCallback::event_handler);
+  }
+
+  int event_handler(int, void*)
+  {
+    m_cs->handleEvent((int) m_event, 0);
+    delete this;
+    return 0;
+  }
+
+private:
+  HttpClientSession *m_cs;
+  TSEvent m_event;
+};
+
+
+void
+TSHttpSsnReenable(TSHttpSsn ssnp, TSEvent event)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+
+  HttpClientSession *cs = (HttpClientSession *) ssnp;
+  EThread *eth = this_ethread();
+
+  // If this function is being executed on a thread created by the API
+  // which is DEDICATED, the continuation needs to be called back on a
+  // REGULAR thread.
+  if (eth->tt != REGULAR) {
+    eventProcessor.schedule_imm(new TSHttpSsnCallback(cs, event), ET_NET);
+  } else {
+    MUTEX_TRY_LOCK(trylock, cs->mutex, eth);
+    if (!trylock) {
+      eventProcessor.schedule_imm(new TSHttpSsnCallback(cs, event), ET_NET);
+    } else {
+      cs->handleEvent((int) event, 0);
+    }
+  }
+}
+
+
+/* HTTP transactions */
+void
+TSHttpTxnHookAdd(TSHttpTxn txnp, TSHttpHookID id, TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_hook_id(id) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  sm->txn_hook_append(id, (INKContInternal *) contp);
+}
+
+
+// Private api function for gzip plugin.
+//  This function should only appear in TsapiPrivate.h
+TSReturnCode
+TSHttpTxnHookRegisteredFor(TSHttpTxn txnp, TSHttpHookID id, TSEventFunc funcp)
+{
+  HttpSM *sm = (HttpSM *) txnp;
+  APIHook *hook = sm->txn_hook_get(id);
+
+  while (hook != NULL) {
+    if (hook->m_cont && hook->m_cont->m_event_func == funcp) {
+      return TS_SUCCESS;
+    }
+    hook = hook->m_link.next;
+  }
+
+  return TS_ERROR;
+}
+
+TSHttpSsn
+TSHttpTxnSsnGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return (TSHttpSsn)sm->ua_session;
+}
+
+// TODO: Is this still necessary ??
+void
+TSHttpTxnClientKeepaliveSet(TSHttpTxn txnp, int set)
+{
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+
+  s->hdr_info.trust_response_cl = (set != 0) ? true : false;
+}
+
+TSReturnCode
+TSHttpTxnClientReqGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPHdr *hptr = &(sm->t_state.hdr_info.client_request);
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *obj = reinterpret_cast<TSMLoc>(hptr->m_http);
+    if (sdk_sanity_check_mbuffer(*bufp) == TS_SUCCESS) {
+      hptr->mark_target_dirty();
+      return TS_SUCCESS;;
+    }
+  }
+  return TS_ERROR;
+}
+
+// pristine url is the url before remap
+TSReturnCode
+TSHttpTxnPristineUrlGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *url_loc)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)url_loc) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*) txnp;
+  HTTPHdr *hptr = &(sm->t_state.hdr_info.client_request);
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *url_loc = (TSMLoc)sm->t_state.pristine_url.m_url_impl;
+
+    if ((sdk_sanity_check_mbuffer(*bufp) == TS_SUCCESS) && (*url_loc))
+      return TS_SUCCESS;
+  }
+  return TS_ERROR;
+}
+
+// Shortcut to just get the URL.
+char*
+TSHttpTxnEffectiveUrlStringGet(TSHttpTxn txnp, int *length)
+{
+  sdk_assert(TS_SUCCESS == sdk_sanity_check_txn(txnp));
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  HttpSM *sm = reinterpret_cast<HttpSM*>(txnp);
+  return sm->t_state.hdr_info.client_request.url_string_get(0, length);
+}
+
+TSReturnCode
+TSHttpTxnClientRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPHdr *hptr = &(sm->t_state.hdr_info.client_response);
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *obj = reinterpret_cast<TSMLoc>(hptr->m_http);
+    sdk_sanity_check_mbuffer(*bufp);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+
+TSReturnCode
+TSHttpTxnServerReqGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPHdr *hptr = &(sm->t_state.hdr_info.server_request);
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *obj = reinterpret_cast<TSMLoc>(hptr->m_http);
+    sdk_sanity_check_mbuffer(*bufp);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+TSReturnCode
+TSHttpTxnServerRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPHdr *hptr = &(sm->t_state.hdr_info.server_response);
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *obj = reinterpret_cast<TSMLoc>(hptr->m_http);
+    sdk_sanity_check_mbuffer(*bufp);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+TSReturnCode
+TSHttpTxnCachedReqGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPInfo *cached_obj = sm->t_state.cache_info.object_read;
+
+  // The following check is need to prevent the HttpSM handle copy from going bad
+  // Since the cache manages the header buffer, sm->t_state.cache_info.object_read
+  // is the only way to tell if handle has gone bad.
+  if ((!cached_obj) || (!cached_obj->valid())) {
+    return TS_ERROR;
+  }
+
+  HTTPHdr *cached_hdr = sm->t_state.cache_info.object_read->request_get();
+
+  if (!cached_hdr->valid()) {
+    return TS_ERROR;
+  }
+  // We can't use the HdrHeapSDKHandle structure in the RamCache since multiple
+  // threads can access. We need to create our own for the transaction and return that.
+  HdrHeapSDKHandle **handle = &(sm->t_state.cache_req_hdr_heap_handle);
+
+  if (*handle == NULL) {
+    *handle = (HdrHeapSDKHandle *) sm->t_state.arena.alloc(sizeof(HdrHeapSDKHandle));
+    (*handle)->m_heap = cached_hdr->m_heap;
+  }
+
+  *(reinterpret_cast<HdrHeapSDKHandle**>(bufp)) = *handle;
+  *obj = reinterpret_cast<TSMLoc>(cached_hdr->m_http);
+  sdk_sanity_check_mbuffer(*bufp);
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnCachedRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPInfo *cached_obj = sm->t_state.cache_info.object_read;
+
+  // The following check is need to prevent the HttpSM handle copy from going bad
+  // Since the cache manages the header buffer, sm->t_state.cache_info.object_read
+  // is the only way to tell if handle has gone bad.
+  if ((!cached_obj) || (!cached_obj->valid())) {
+    return TS_ERROR;
+  }
+
+  HTTPHdr *cached_hdr = sm->t_state.cache_info.object_read->response_get();
+
+  if (!cached_hdr->valid()) {
+    return TS_ERROR;
+  }
+  // We can't use the HdrHeapSDKHandle structure in the RamCache since multiple
+  //  threads can access.  We need to create our own for the transaction and return that.
+  HdrHeapSDKHandle **handle = &(sm->t_state.cache_resp_hdr_heap_handle);
+
+  if (*handle == NULL) {
+    *handle = (HdrHeapSDKHandle *) sm->t_state.arena.alloc(sizeof(HdrHeapSDKHandle));
+    (*handle)->m_heap = cached_hdr->m_heap;
+  }
+
+  *(reinterpret_cast<HdrHeapSDKHandle**>(bufp)) = *handle;
+  *obj = reinterpret_cast<TSMLoc>(cached_hdr->m_http);
+  sdk_sanity_check_mbuffer(*bufp);
+
+  return TS_SUCCESS;
+}
+
+
+TSReturnCode
+TSHttpTxnCachedRespModifiableGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+  HTTPHdr *c_resp = NULL;
+  HTTPInfo *cached_obj = sm->t_state.cache_info.object_read;
+  HTTPInfo *cached_obj_store = &(sm->t_state.cache_info.object_store);
+
+  if ((!cached_obj) || (!cached_obj->valid()))
+    return TS_ERROR;
+
+  if (!cached_obj_store->valid())
+    cached_obj_store->create();
+
+  c_resp = cached_obj_store->response_get();
+  if (c_resp == NULL || !c_resp->valid())
+    cached_obj_store->response_set(cached_obj->response_get());
+  c_resp = cached_obj_store->response_get();
+  s->api_modifiable_cached_resp = true;
+
+  ink_assert(c_resp != NULL && c_resp->valid());
+  *(reinterpret_cast<HTTPHdr**>(bufp)) = c_resp;
+  *obj = reinterpret_cast<TSMLoc>(c_resp->m_http);
+  sdk_sanity_check_mbuffer(*bufp);
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnCacheLookupStatusGet(TSHttpTxn txnp, int *lookup_status)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) lookup_status) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+
+  switch (sm->t_state.cache_lookup_result) {
+  case HttpTransact::CACHE_LOOKUP_MISS:
+  case HttpTransact::CACHE_LOOKUP_DOC_BUSY:
+    *lookup_status = TS_CACHE_LOOKUP_MISS;
+    break;
+  case HttpTransact::CACHE_LOOKUP_HIT_STALE:
+    *lookup_status = TS_CACHE_LOOKUP_HIT_STALE;
+    break;
+  case HttpTransact::CACHE_LOOKUP_HIT_WARNING:
+  case HttpTransact::CACHE_LOOKUP_HIT_FRESH:
+    *lookup_status = TS_CACHE_LOOKUP_HIT_FRESH;
+    break;
+  case HttpTransact::CACHE_LOOKUP_SKIPPED:
+    *lookup_status = TS_CACHE_LOOKUP_SKIPPED;
+    break;
+  case HttpTransact::CACHE_LOOKUP_NONE:
+  default:
+    return TS_ERROR;
+  };
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnCacheLookupCountGet(TSHttpTxn txnp, int *lookup_count)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*) lookup_count) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *)txnp;
+  *lookup_count = sm->t_state.cache_info.lookup_count;
+  return TS_SUCCESS;
+}
+
+
+/* two hooks this function may gets called:
+   TS_HTTP_READ_CACHE_HDR_HOOK   &
+   TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK
+ */
+TSReturnCode
+TSHttpTxnCacheLookupStatusSet(TSHttpTxn txnp, int cachelookup)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::CacheLookupResult_t *sm_status = &(sm->t_state.cache_lookup_result);
+
+  // converting from a miss to a hit is not allowed
+  if (*sm_status == HttpTransact::CACHE_LOOKUP_MISS && cachelookup != TS_CACHE_LOOKUP_MISS)
+    return TS_ERROR;
+
+  // here is to handle converting a hit to a miss
+  if (cachelookup == TS_CACHE_LOOKUP_MISS && *sm_status != HttpTransact::CACHE_LOOKUP_MISS) {
+    sm->t_state.api_cleanup_cache_read = true;
+    ink_assert(sm->t_state.transact_return_point != NULL);
+    sm->t_state.transact_return_point = HttpTransact::HandleCacheOpenRead;
+  }
+
+  switch (cachelookup) {
+  case TS_CACHE_LOOKUP_MISS:
+    *sm_status = HttpTransact::CACHE_LOOKUP_MISS;
+    break;
+  case TS_CACHE_LOOKUP_HIT_STALE:
+    *sm_status = HttpTransact::CACHE_LOOKUP_HIT_STALE;
+    break;
+  case TS_CACHE_LOOKUP_HIT_FRESH:
+    *sm_status = HttpTransact::CACHE_LOOKUP_HIT_FRESH;
+    break;
+  default:
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnCacheLookupUrlGet(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(obj) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  URL u, *l_url;
+
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) obj;
+  if (!u.valid())
+    return TS_ERROR;
+
+  l_url = sm->t_state.cache_info.lookup_url;
+  if (l_url && l_url->valid()) {
+    u.copy(l_url);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+// TS-1996: This API will be removed after v3.4.0 is cut. Do not use it!
+TSReturnCode
+TSHttpTxnNewCacheLookupDo(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc url_loc)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(url_loc) == TS_SUCCESS);
+
+  URL new_url, *client_url, *l_url, *o_url;
+  INK_MD5 md51, md52;
+
+  new_url.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  new_url.m_url_impl = (URLImpl *) url_loc;
+  if (!new_url.valid())
+    return TS_ERROR;
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+
+  client_url = s->hdr_info.client_request.url_get();
+  if (!(client_url->valid()))
+    return TS_ERROR;
+
+  // if l_url is not valid, then no cache lookup has been done yet
+  // so we shouldn't be calling TSHttpTxnNewCacheLookupDo right now
+  l_url = s->cache_info.lookup_url;
+  if (!l_url || !l_url->valid()) {
+    s->cache_info.lookup_url_storage.create(NULL);
+    s->cache_info.lookup_url = &(s->cache_info.lookup_url_storage);
+    l_url = s->cache_info.lookup_url;
+  } else {
+    l_url->MD5_get(&md51);
+    new_url.MD5_get(&md52);
+    if (md51 == md52)
+      return TS_ERROR;
+    o_url = &(s->cache_info.original_url);
+    if (!o_url->valid()) {
+      o_url->create(NULL);
+      o_url->copy(l_url);
+    }
+  }
+
+  // copy the new_url to lookup_url
+  l_url->copy(&new_url);
+
+  // bypass HttpTransact::HandleFiltering
+  s->transact_return_point = HttpTransact::DecideCacheLookup;
+  s->cache_info.action = HttpTransact::CACHE_DO_LOOKUP;
+  sm->add_cache_sm();
+  s->api_cleanup_cache_read = true;
+
+  return TS_SUCCESS;
+}
+
+// TS-1996: This API will be removed after v3.4.0 is cut. Do not use it!
+TSReturnCode
+TSHttpTxnSecondUrlTryLock(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+  // TSHttpTxnNewCacheLookupDo didn't continue
+  if (!s->cache_info.original_url.valid())
+    return TS_ERROR;
+  sm->add_cache_sm();
+  s->api_lock_url = HttpTransact::LOCK_URL_SECOND;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnRedirectRequest(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc url_loc)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_mbuffer(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_url_handle(url_loc) == TS_SUCCESS);
+
+  URL u, *o_url, *r_url, *client_url;
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+
+  u.m_heap = ((HdrHeapSDKHandle *) bufp)->m_heap;
+  u.m_url_impl = (URLImpl *) url_loc;
+  if (!u.valid())
+    return TS_ERROR;
+
+  client_url = s->hdr_info.client_request.url_get();
+  if (!(client_url->valid()))
+    return TS_ERROR;
+
+  s->redirect_info.redirect_in_process = true;
+  o_url = &(s->redirect_info.original_url);
+  if (!o_url->valid()) {
+    o_url->create(NULL);
+    o_url->copy(client_url);
+  }
+  client_url->copy(&u);
+
+  r_url = &(s->redirect_info.redirect_url);
+  if (!r_url->valid())
+    r_url->create(NULL);
+  r_url->copy(&u);
+
+  s->hdr_info.server_request.destroy();
+  // we want to close the server session
+  s->api_release_server_session = true;
+
+  s->request_sent_time = 0;
+  s->response_received_time = 0;
+  s->cache_info.write_lock_state = HttpTransact::CACHE_WL_INIT;
+  s->next_action = HttpTransact::SM_ACTION_REDIRECT_READ;
+
+  return TS_SUCCESS;
+}
+
+/**
+ * timeout is in msec
+ * overrides as proxy.config.http.transaction_active_timeout_out
+**/
+void
+TSHttpTxnActiveTimeoutSet(TSHttpTxn txnp, int timeout)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  s->api_txn_active_timeout_value = timeout;
+}
+
+/**
+ * timeout is in msec
+ * overrides as proxy.config.http.connect_attempts_timeout
+**/
+void
+TSHttpTxnConnectTimeoutSet(TSHttpTxn txnp, int timeout)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  s->api_txn_connect_timeout_value = timeout;
+}
+
+/**
+ * timeout is in msec
+ * overrides as proxy.config.dns.lookup_timeout
+**/
+void
+TSHttpTxnDNSTimeoutSet(TSHttpTxn txnp, int timeout)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+
+  s->api_txn_dns_timeout_value = timeout;
+}
+
+
+/**
+ * timeout is in msec
+ * overrides as proxy.config.http.transaction_no_activity_timeout_out
+**/
+void
+TSHttpTxnNoActivityTimeoutSet(TSHttpTxn txnp, int timeout)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  s->api_txn_no_activity_timeout_value = timeout;
+}
+
+TSReturnCode
+TSHttpTxnServerRespNoStoreSet(TSHttpTxn txnp, int flag)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  s->api_server_response_no_store = (flag != 0);
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnServerRespIgnore(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  HTTPInfo *cached_obj = s->cache_info.object_read;
+  HTTPHdr *cached_resp;
+
+  if (cached_obj == NULL || !cached_obj->valid())
+    return TS_ERROR;
+
+  cached_resp = cached_obj->response_get();
+  if (cached_resp == NULL || !cached_resp->valid())
+    return TS_ERROR;
+
+  s->api_server_response_ignore = true;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnShutDown(TSHttpTxn txnp, TSEvent event)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  if (event == TS_EVENT_HTTP_TXN_CLOSE)
+    return TS_ERROR;
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  s->api_http_sm_shutdown = true;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnAborted(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  switch (sm->t_state.squid_codes.log_code) {
+  case SQUID_LOG_ERR_CLIENT_ABORT:
+  case SQUID_LOG_TCP_SWAPFAIL:
+    // check for client abort and cache read error
+    return TS_SUCCESS;
+  default:
+    break;
+  }
+
+  if (sm->t_state.current.server && sm->t_state.current.server->abort == HttpTransact::ABORTED) {
+    // check for the server abort
+    return TS_SUCCESS;
+  }
+  // there can be the case of transformation error.
+  return TS_ERROR;
+}
+
+void
+TSHttpTxnReqCacheableSet(TSHttpTxn txnp, int flag)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM* sm = (HttpSM*)txnp;
+  sm->t_state.api_req_cacheable = (flag != 0);
+}
+
+void
+TSHttpTxnRespCacheableSet(TSHttpTxn txnp, int flag)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM* sm = (HttpSM*)txnp;
+  sm->t_state.api_resp_cacheable = (flag != 0);
+}
+
+int
+TSHttpTxnClientReqIsServerStyle(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return (sm->t_state.hdr_info.client_req_is_server_style ? 1 : 0);
+}
+
+void
+TSHttpTxnOverwriteExpireTime(TSHttpTxn txnp, time_t expire_time)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  s->plugin_set_expire_time = expire_time;
+}
+
+TSReturnCode
+TSHttpTxnUpdateCachedObject(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+  HTTPInfo *cached_obj_store = &(sm->t_state.cache_info.object_store);
+  HTTPHdr *client_request = &(sm->t_state.hdr_info.client_request);
+
+  if (!cached_obj_store->valid() || !cached_obj_store->response_get())
+    return TS_ERROR;
+
+  if (!cached_obj_store->request_get() && !client_request->valid())
+    return TS_ERROR;
+
+  if (s->cache_info.write_lock_state == HttpTransact::CACHE_WL_READ_RETRY)
+    return TS_ERROR;
+
+  s->api_update_cached_object = HttpTransact::UPDATE_CACHED_OBJECT_PREPARE;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnTransformRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPHdr *hptr = &(sm->t_state.hdr_info.transform_response);
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *obj = reinterpret_cast<TSMLoc>(hptr->m_http);
+    return sdk_sanity_check_mbuffer(*bufp);
+  }
+
+  return TS_ERROR;
+}
+
+void *
+TSHttpSsnSSLConnectionGet(TSHttpSsn ssnp)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)ssnp) == TS_SUCCESS);
+
+  HttpClientSession *cs = reinterpret_cast<HttpClientSession *>(ssnp);
+  if (cs == NULL) {
+    return NULL;
+  }
+
+  SSLNetVConnection *ssl_vc = dynamic_cast<SSLNetVConnection *>(cs->get_netvc());
+  if (ssl_vc == NULL) {
+    return NULL;
+  }
+
+  return (void *)ssl_vc->ssl;
+}
+
+sockaddr const*
+TSHttpSsnClientAddrGet(TSHttpSsn ssnp)
+{
+  HttpClientSession *cs = reinterpret_cast<HttpClientSession *>(ssnp);
+
+  if (cs == NULL) return 0;
+
+  NetVConnection *vc = cs->get_netvc();
+  if (vc == NULL) return 0;
+
+  return vc->get_remote_addr();
+}
+sockaddr const*
+TSHttpTxnClientAddrGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  TSHttpSsn ssnp = TSHttpTxnSsnGet(txnp);
+  return TSHttpSsnClientAddrGet(ssnp);
+}
+
+sockaddr const*
+TSHttpSsnIncomingAddrGet(TSHttpSsn ssnp)
+{
+  HttpClientSession *cs = reinterpret_cast<HttpClientSession *>(ssnp);
+
+  if (cs == NULL) return 0;
+
+  NetVConnection *vc = cs->get_netvc();
+  if (vc == NULL) return 0;
+
+  return vc->get_local_addr();
+}
+sockaddr const*
+TSHttpTxnIncomingAddrGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  TSHttpSsn ssnp = TSHttpTxnSsnGet(txnp);
+  return TSHttpSsnIncomingAddrGet(ssnp);
+}
+
+sockaddr const*
+TSHttpTxnServerAddrGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = reinterpret_cast<HttpSM *>(txnp);
+  return &sm->t_state.server_info.addr.sa;
+}
+
+TSReturnCode
+TSHttpTxnServerAddrSet(TSHttpTxn txnp, struct sockaddr const* addr)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = reinterpret_cast<HttpSM *>(txnp);
+  if (ats_ip_copy(&sm->t_state.server_info.addr.sa, addr)) {
+    ats_ip_port_cast(&sm->t_state.server_info.addr.sa) = ats_ip_port_cast(addr);
+    sm->t_state.server_info.port = htons(ats_ip_port_cast(addr));
+    sm->t_state.api_server_addr_set = true;
+    return TS_SUCCESS;
+  } else {
+    return TS_ERROR;
+  }
+}
+
+void
+TSHttpTxnClientIncomingPortSet(TSHttpTxn txnp, int port)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  sm->t_state.client_info.port = port;
+}
+
+// [amc] This might use the port. The code path should do that but it
+// hasn't been tested.
+TSReturnCode
+TSHttpTxnOutgoingAddrSet(TSHttpTxn txnp, const struct sockaddr *addr)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+
+  sm->ua_session->outbound_port = ats_ip_port_host_order(addr);
+
+  if (ats_is_ip4(addr)) {
+    sm->ua_session->outbound_ip4.assign(addr);
+  } else if (ats_is_ip6(addr)) {
+    sm->ua_session->outbound_ip6.assign(addr);
+  } else {
+    sm->ua_session->outbound_ip4.invalidate();
+    sm->ua_session->outbound_ip6.invalidate();
+  }
+  return TS_ERROR;
+}
+
+sockaddr const*
+TSHttpTxnNextHopAddrGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = reinterpret_cast<HttpSM *>(txnp);
+
+    /**
+     * Return zero if the server structure is not yet constructed.
+     */
+  if (sm->t_state.current.server == NULL)
+    return NULL;
+
+  return &sm->t_state.current.server->addr.sa;
+}
+
+TSReturnCode
+TSHttpTxnOutgoingTransparencySet(TSHttpTxn txnp, int flag)
+{
+  if (TS_SUCCESS != sdk_sanity_check_txn(txnp)) return TS_ERROR;
+
+# if ! TS_USE_TPROXY
+  if (flag) return TS_ERROR; // can't enable if it's not configured.
+# endif
+
+  HttpSM *sm = reinterpret_cast<HttpSM*>(txnp);
+  if (NULL == sm || NULL == sm->ua_session) {
+    return TS_ERROR;
+  }
+
+  sm->ua_session->f_outbound_transparent = flag;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnClientPacketMarkSet(TSHttpTxn txnp, int mark)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+  if (NULL == sm->ua_session) {
+    return TS_ERROR;
+  }
+
+  NetVConnection *vc = sm->ua_session->get_netvc();
+  if (NULL == vc) {
+    return TS_ERROR;
+  }
+
+  vc->options.packet_mark = (uint32_t)mark;
+  vc->apply_options();
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnServerPacketMarkSet(TSHttpTxn txnp, int mark)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+
+  // change the mark on an active server session
+  if (NULL != sm->ua_session) {
+    HttpServerSession *ssn = sm->ua_session->get_server_session();
+    if (NULL != ssn) {
+      NetVConnection *vc = ssn->get_netvc();
+      if (vc != NULL) {
+        vc->options.packet_mark = (uint32_t)mark;
+        vc->apply_options();
+      }
+    }
+  }
+
+  // update the transactions mark config for future connections
+  TSHttpTxnConfigIntSet(txnp, TS_CONFIG_NET_SOCK_PACKET_MARK_OUT, mark);
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnClientPacketTosSet(TSHttpTxn txnp, int tos)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+  if (NULL == sm->ua_session) {
+    return TS_ERROR;
+  }
+
+  NetVConnection *vc = sm->ua_session->get_netvc();
+  if (NULL == vc) {
+    return TS_ERROR;
+  }
+
+  vc->options.packet_tos = (uint32_t)tos;
+  vc->apply_options();
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnServerPacketTosSet(TSHttpTxn txnp, int tos)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+
+  // change the tos on an active server session
+  if (NULL != sm->ua_session) {
+    HttpServerSession *ssn = sm->ua_session->get_server_session();
+    if (NULL != ssn) {
+      NetVConnection *vc = ssn->get_netvc();
+      if (vc != NULL) {
+        vc->options.packet_tos = (uint32_t)tos;
+        vc->apply_options();
+      }
+    }
+  }
+
+  // update the transactions mark config for future connections
+  TSHttpTxnConfigIntSet(txnp, TS_CONFIG_NET_SOCK_PACKET_TOS_OUT, tos);
+  return TS_SUCCESS;
+}
+
+// Set the body, or, if you provide a NULL buffer, clear the body message
+void
+TSHttpTxnErrorBodySet(TSHttpTxn txnp, char *buf, size_t buflength, char *mimetype)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+
+  // Cleanup anything already set.
+  s->free_internal_msg_buffer();
+  ats_free(s->internal_msg_buffer_type);
+
+  s->internal_msg_buffer = buf;
+  s->internal_msg_buffer_size = buf ? buflength : 0;
+  s->internal_msg_buffer_fast_allocator_size = -1;
+
+  s->internal_msg_buffer_type = mimetype;
+}
+
+void
+TSHttpTxnServerRequestBodySet(TSHttpTxn txnp, char *buf, int64_t buflength)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+
+  // Cleanup anything already set.
+  s->free_internal_msg_buffer();
+
+  if (buf) {
+    s->api_server_request_body_set = true;
+    s->internal_msg_buffer = buf;
+    s->internal_msg_buffer_size = buflength;
+  } else {
+    s->api_server_request_body_set = false;
+    s->internal_msg_buffer = NULL;
+    s->internal_msg_buffer_size = 0;
+  }
+  s->internal_msg_buffer_fast_allocator_size = -1;
+}
+
+TSReturnCode
+TSHttpTxnParentProxyGet(TSHttpTxn txnp, char **hostname, int *port)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+
+  *hostname = sm->t_state.api_info.parent_proxy_name;
+  *port = sm->t_state.api_info.parent_proxy_port;
+
+  return TS_SUCCESS;
+}
+
+void
+TSHttpTxnParentProxySet(TSHttpTxn txnp, char *hostname, int port)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)hostname) == TS_SUCCESS);
+  sdk_assert(port > 0);
+
+  HttpSM *sm = (HttpSM *) txnp;
+
+  sm->t_state.api_info.parent_proxy_name = sm->t_state.arena.str_store(hostname, strlen(hostname));
+  sm->t_state.api_info.parent_proxy_port = port;
+}
+
+void
+TSHttpTxnUntransformedRespCache(TSHttpTxn txnp, int on)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  sm->t_state.api_info.cache_untransformed = (on ? true : false);
+}
+
+void
+TSHttpTxnTransformedRespCache(TSHttpTxn txnp, int on)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  sm->t_state.api_info.cache_transformed = (on ? true : false);
+}
+
+
+class TSHttpSMCallback:public Continuation
+{
+public:
+  TSHttpSMCallback(HttpSM *sm, TSEvent event)
+    : Continuation(sm->mutex), m_sm(sm), m_event(event)
+  {
+    SET_HANDLER(&TSHttpSMCallback::event_handler);
+  }
+
+  int event_handler(int, void*)
+  {
+    m_sm->state_api_callback((int) m_event, 0);
+    delete this;
+    return 0;
+  }
+
+private:
+  HttpSM *m_sm;
+  TSEvent m_event;
+};
+
+
+//----------------------------------------------------------------------------
+void
+TSHttpTxnReenable(TSHttpTxn txnp, TSEvent event)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  EThread *eth = this_ethread();
+
+  // TS-2271: If this function is being executed on a thread which was not
+  // created using the ATS EThread API, eth will be NULL, and the
+  // continuation needs to be called back on a REGULAR thread.
+  //
+  // If this function is being executed on a thread created by the API
+  // which is DEDICATED, the continuation needs to be called back on a
+  // REGULAR thread.
+  if (eth == NULL || eth->tt != REGULAR) {
+    eventProcessor.schedule_imm(new TSHttpSMCallback(sm, event), ET_NET);
+  } else {
+    MUTEX_TRY_LOCK(trylock, sm->mutex, eth);
+    if (!trylock) {
+      eventProcessor.schedule_imm(new TSHttpSMCallback(sm, event), ET_NET);
+    } else {
+      sm->state_api_callback((int) event, 0);
+    }
+  }
+}
+
+TSReturnCode
+TSHttpArgIndexReserve(const char* name, const char* description, int *arg_idx)
+{
+  sdk_assert(sdk_sanity_check_null_ptr(arg_idx) == TS_SUCCESS);
+
+  int volatile ix = ink_atomic_increment(&next_argv_index, 1);
+
+  if (ix < HTTP_SSN_TXN_MAX_USER_ARG) {
+    state_arg_table[ix].name = ats_strdup(name);
+    state_arg_table[ix].name_len = strlen(state_arg_table[ix].name);
+    if (description)
+      state_arg_table[ix].description = ats_strdup(description);
+    *arg_idx = ix;
+
+    return TS_SUCCESS;
+  }
+  return TS_ERROR;
+}
+
+TSReturnCode
+TSHttpArgIndexLookup(int arg_idx, const char** name, const char** description)
+{
+  if (sdk_sanity_check_null_ptr(name) == TS_SUCCESS) {
+    if (state_arg_table[arg_idx].name) {
+      *name = state_arg_table[arg_idx].name;
+      if (description)
+        *description = state_arg_table[arg_idx].description;
+      return TS_SUCCESS;
+    }
+  }
+  return TS_ERROR;
+}
+
+// Not particularly efficient, but good enough for now.
+TSReturnCode
+TSHttpArgIndexNameLookup(const char* name, int *arg_idx, const char **description)
+{
+  sdk_assert(sdk_sanity_check_null_ptr(arg_idx) == TS_SUCCESS);
+
+  size_t len = strlen(name);
+
+  for (int ix = 0; ix <  next_argv_index; ++ix) {
+    if ((len == state_arg_table[ix].name_len) && (0 == strcmp(name, state_arg_table[ix].name))) {
+      if (description)
+        *description = state_arg_table[ix].description;
+      *arg_idx = ix;
+      return TS_SUCCESS;
+    }
+  }
+  return TS_ERROR;
+}
+
+void
+TSHttpTxnArgSet(TSHttpTxn txnp, int arg_idx, void *arg)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(arg_idx >= 0 && arg_idx < HTTP_SSN_TXN_MAX_USER_ARG);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  sm->t_state.user_args[arg_idx] = arg;
+}
+
+void *
+TSHttpTxnArgGet(TSHttpTxn txnp, int arg_idx)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(arg_idx >= 0 && arg_idx < HTTP_SSN_TXN_MAX_USER_ARG);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->t_state.user_args[arg_idx];
+}
+
+void
+TSHttpSsnArgSet(TSHttpSsn ssnp, int arg_idx, void *arg)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+  sdk_assert(arg_idx >= 0 && arg_idx < HTTP_SSN_TXN_MAX_USER_ARG);
+
+  HttpClientSession *cs = (HttpClientSession *)ssnp;
+
+  cs->set_user_arg(arg_idx, arg);
+}
+
+void *
+TSHttpSsnArgGet(TSHttpSsn ssnp, int arg_idx)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+  sdk_assert(arg_idx >= 0 && arg_idx < HTTP_SSN_TXN_MAX_USER_ARG);
+
+  HttpClientSession *cs = (HttpClientSession *)ssnp;
+  return cs->get_user_arg(arg_idx);
+}
+
+void
+TSHttpTxnSetHttpRetStatus(TSHttpTxn txnp, TSHttpStatus http_retstatus)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  sm->t_state.http_return_code = (HTTPStatus) http_retstatus;
+}
+
+/* control channel for HTTP */
+TSReturnCode
+TSHttpTxnCntl(TSHttpTxn txnp, TSHttpCntlType cntl, void *data)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+
+  switch (cntl) {
+  case TS_HTTP_CNTL_GET_LOGGING_MODE:
+    {
+      if (data == NULL)
+        return TS_ERROR;
+
+      intptr_t *rptr = (intptr_t *) data;
+
+      if (sm->t_state.api_info.logging_enabled) {
+        *rptr = (intptr_t) TS_HTTP_CNTL_ON;
+      } else {
+        *rptr = (intptr_t) TS_HTTP_CNTL_OFF;
+      }
+
+      return TS_SUCCESS;
+    }
+
+  case TS_HTTP_CNTL_SET_LOGGING_MODE:
+    if (data != TS_HTTP_CNTL_ON && data != TS_HTTP_CNTL_OFF) {
+      return TS_ERROR;
+    } else {
+      sm->t_state.api_info.logging_enabled = (bool) data;
+      return TS_SUCCESS;
+    }
+    break;
+
+  case TS_HTTP_CNTL_GET_INTERCEPT_RETRY_MODE:
+    {
+      if (data == NULL)
+        return TS_ERROR;
+
+      intptr_t *rptr = (intptr_t *) data;
+
+      if (sm->t_state.api_info.retry_intercept_failures) {
+        *rptr = (intptr_t) TS_HTTP_CNTL_ON;
+      } else {
+        *rptr = (intptr_t) TS_HTTP_CNTL_OFF;
+      }
+
+      return TS_SUCCESS;
+    }
+
+  case TS_HTTP_CNTL_SET_INTERCEPT_RETRY_MODE:
+    if (data != TS_HTTP_CNTL_ON && data != TS_HTTP_CNTL_OFF) {
+      return TS_ERROR;
+    } else {
+      sm->t_state.api_info.retry_intercept_failures = (bool) data;
+      return TS_SUCCESS;
+    }
+  default:
+    return TS_ERROR;
+  }
+
+  return TS_ERROR;
+}
+
+/* This is kinda horky, we have to use TSServerState instead of
+   HttpTransact::ServerState_t, otherwise we have a prototype
+   mismatch in the public ts/ts.h interfaces. */
+TSServerState
+TSHttpTxnServerStateGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpTransact::State *s = &(((HttpSM *) txnp)->t_state);
+  return (TSServerState)s->current.state;
+}
+
+void
+TSHttpTxnDebugSet(TSHttpTxn txnp, int on)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  ((HttpSM *)txnp)->debug_on = on;
+}
+
+int
+TSHttpTxnDebugGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  return ((HttpSM *)txnp)->debug_on;
+}
+void
+TSHttpSsnDebugSet(TSHttpSsn ssnp, int on)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+  ((HttpClientSession *)ssnp)->debug_on = on;
+}
+int
+TSHttpSsnDebugGet(TSHttpSsn ssnp)
+{
+  sdk_assert(sdk_sanity_check_http_ssn(ssnp) == TS_SUCCESS);
+  return ((HttpClientSession *)ssnp)->debug_on;
+}
+
+int
+TSHttpTxnClientReqHdrBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->client_request_hdr_bytes;
+}
+
+int64_t
+TSHttpTxnClientReqBodyBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->client_request_body_bytes;
+}
+
+int
+TSHttpTxnServerReqHdrBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->server_request_hdr_bytes;
+}
+
+int64_t
+TSHttpTxnServerReqBodyBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->server_request_body_bytes;
+}
+
+int
+TSHttpTxnServerRespHdrBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->server_response_hdr_bytes;
+}
+
+int64_t
+TSHttpTxnServerRespBodyBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->server_response_body_bytes;
+}
+
+int
+TSHttpTxnClientRespHdrBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->client_response_hdr_bytes;
+}
+
+int64_t
+TSHttpTxnClientRespBodyBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->client_response_body_bytes;
+}
+
+int
+TSHttpTxnPushedRespHdrBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->pushed_response_hdr_bytes;
+}
+
+int64_t
+TSHttpTxnPushedRespBodyBytesGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  return sm->pushed_response_body_bytes;
+}
+
+// Get a particular milestone hrtime'r. Note that this can return 0, which means it has not
+// been set yet.
+TSReturnCode
+TSHttpTxnMilestoneGet(TSHttpTxn txnp, TSMilestonesType milestone, ink_hrtime *time)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr(time) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+  TSReturnCode ret = TS_SUCCESS;
+
+  switch(milestone) {
+  case TS_MILESTONE_UA_BEGIN:
+    *time = sm->milestones.ua_begin;
+    break;
+  case TS_MILESTONE_UA_READ_HEADER_DONE:
+    *time = sm->milestones.ua_read_header_done;
+    break;
+  case TS_MILESTONE_UA_BEGIN_WRITE:
+    *time = sm->milestones.ua_begin_write;
+    break;
+  case TS_MILESTONE_UA_CLOSE:
+    *time = sm->milestones.ua_close;
+    break;
+  case TS_MILESTONE_SERVER_FIRST_CONNECT:
+    *time = sm->milestones.server_first_connect;
+    break;
+  case TS_MILESTONE_SERVER_CONNECT:
+    *time = sm->milestones.server_connect;
+    break;
+  case TS_MILESTONE_SERVER_CONNECT_END:
+    *time = sm->milestones.server_connect_end;
+    break;
+  case TS_MILESTONE_SERVER_BEGIN_WRITE:
+    *time = sm->milestones.server_begin_write;
+    break;
+  case TS_MILESTONE_SERVER_FIRST_READ:
+    *time = sm->milestones.server_first_read;
+    break;
+  case TS_MILESTONE_SERVER_READ_HEADER_DONE:
+    *time = sm->milestones.server_read_header_done;
+    break;
+  case TS_MILESTONE_SERVER_CLOSE:
+    *time = sm->milestones.server_close;
+    break;
+  case TS_MILESTONE_CACHE_OPEN_READ_BEGIN:
+    *time = sm->milestones.cache_open_read_begin;
+    break;
+  case TS_MILESTONE_CACHE_OPEN_READ_END:
+    *time = sm->milestones.cache_open_read_end;
+    break;
+  case TS_MILESTONE_CACHE_OPEN_WRITE_BEGIN:
+    *time = sm->milestones.cache_open_write_begin;
+    break;
+  case TS_MILESTONE_CACHE_OPEN_WRITE_END:
+    *time = sm->milestones.cache_open_write_end;
+    break;
+  case TS_MILESTONE_DNS_LOOKUP_BEGIN:
+    *time = sm->milestones.dns_lookup_begin;
+    break;
+  case TS_MILESTONE_DNS_LOOKUP_END:
+    *time = sm->milestones.dns_lookup_end;
+    break;
+  case TS_MILESTONE_SM_START:
+    *time = sm->milestones.sm_start;
+    break;
+  case TS_MILESTONE_SM_FINISH:
+    *time = sm->milestones.sm_finish;
+    break;
+  default:
+    *time = -1;
+    ret = TS_ERROR;
+    break;
+  }
+
+  return ret;
+}
+
+TSReturnCode
+TSHttpTxnCachedRespTimeGet(TSHttpTxn txnp, time_t *resp_time)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPInfo *cached_obj = sm->t_state.cache_info.object_read;
+
+  if (cached_obj == NULL || !cached_obj->valid())
+    return TS_ERROR;
+
+  *resp_time = cached_obj->response_received_time_get();
+  return TS_SUCCESS;
+}
+
+int
+TSHttpTxnLookingUpTypeGet(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  HttpTransact::State *s = &(sm->t_state);
+
+  return (int)(s->current.request_to);
+}
+
+int
+TSHttpCurrentClientConnectionsGet(void)
+{
+  int64_t S;
+
+  HTTP_READ_DYN_SUM(http_current_client_connections_stat, S);
+  return (int)S;
+}
+
+int
+TSHttpCurrentActiveClientConnectionsGet(void)
+{
+  int64_t S;
+
+  HTTP_READ_DYN_SUM(http_current_active_client_connections_stat, S);
+  return (int)S;
+}
+
+int
+TSHttpCurrentIdleClientConnectionsGet(void)
+{
+  int64_t total = 0;
+  int64_t active = 0;
+
+  HTTP_READ_DYN_SUM(http_current_client_connections_stat, total);
+  HTTP_READ_DYN_SUM(http_current_active_client_connections_stat, active);
+
+  if (total >= active)
+    return (int)(total - active);
+
+  return 0;
+}
+
+int
+TSHttpCurrentCacheConnectionsGet(void)
+{
+  int64_t S;
+
+  HTTP_READ_DYN_SUM(http_current_cache_connections_stat, S);
+  return (int)S;
+}
+
+int
+TSHttpCurrentServerConnectionsGet(void)
+{
+  int64_t S;
+
+  HTTP_READ_GLOBAL_DYN_SUM(http_current_server_connections_stat, S);
+  return (int)S;
+}
+
+
+/* HTTP alternate selection */
+TSReturnCode
+TSHttpAltInfoClientReqGet(TSHttpAltInfo infop, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_alt_info(infop) == TS_SUCCESS);
+
+  HttpAltInfo *info = (HttpAltInfo *) infop;
+
+  *(reinterpret_cast<HTTPHdr**>(bufp)) = &info->m_client_req;
+  *obj = reinterpret_cast<TSMLoc>(info->m_client_req.m_http);
+
+  return sdk_sanity_check_mbuffer(*bufp);
+}
+
+TSReturnCode
+TSHttpAltInfoCachedReqGet(TSHttpAltInfo infop, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_alt_info(infop) == TS_SUCCESS);
+
+  HttpAltInfo *info = (HttpAltInfo *) infop;
+
+  *(reinterpret_cast<HTTPHdr**>(bufp)) = &info->m_cached_req;
+  *obj = reinterpret_cast<TSMLoc>(info->m_cached_req.m_http);
+
+  return sdk_sanity_check_mbuffer(*bufp);
+}
+
+TSReturnCode
+TSHttpAltInfoCachedRespGet(TSHttpAltInfo infop, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_alt_info(infop) == TS_SUCCESS);
+
+  HttpAltInfo *info = (HttpAltInfo *) infop;
+
+  *(reinterpret_cast<HTTPHdr**>(bufp)) = &info->m_cached_resp;
+  *obj = reinterpret_cast<TSMLoc>(info->m_cached_resp.m_http);
+
+  return sdk_sanity_check_mbuffer(*bufp);
+}
+
+void
+TSHttpAltInfoQualitySet(TSHttpAltInfo infop, float quality)
+{
+  sdk_assert(sdk_sanity_check_alt_info(infop) == TS_SUCCESS);
+
+  HttpAltInfo *info = (HttpAltInfo *) infop;
+  info->m_qvalue = quality;
+}
+
+extern HttpSessionAccept *plugin_http_accept;
+extern HttpSessionAccept *plugin_http_transparent_accept;
+
+TSVConn
+TSHttpConnectWithPluginId(sockaddr const* addr, char const* tag, int64_t id)
+{
+  sdk_assert(addr);
+
+  sdk_assert(ats_is_ip(addr));
+  sdk_assert(ats_ip_port_cast(addr));
+
+  if (plugin_http_accept) {
+    PluginVCCore *new_pvc = PluginVCCore::alloc();
+
+    new_pvc->set_active_addr(addr);
+    new_pvc->set_plugin_id(id);
+    new_pvc->set_plugin_tag(tag);
+    new_pvc->set_accept_cont(plugin_http_accept);
+
+    PluginVC *return_vc = new_pvc->connect();
+
+    if (return_vc != NULL) {
+      PluginVC* other_side = return_vc->get_other_side();
+
+      if(other_side != NULL) {
+        other_side->set_is_internal_request(true);
+      }
+    }
+
+    return reinterpret_cast<TSVConn>(return_vc);
+  }
+
+  return NULL;
+}
+
+TSVConn
+TSHttpConnect(sockaddr const* addr)
+{
+  return TSHttpConnectWithPluginId(addr, "plugin", 0);
+}
+
+TSVConn
+TSHttpConnectTransparent(sockaddr const* client_addr, sockaddr const* server_addr)
+{
+  sdk_assert(ats_is_ip(client_addr));
+  sdk_assert(ats_is_ip(server_addr));
+  sdk_assert(!ats_is_ip_any(client_addr));
+  sdk_assert(ats_ip_port_cast(client_addr));
+  sdk_assert(!ats_is_ip_any(server_addr));
+  sdk_assert(ats_ip_port_cast(server_addr));
+
+  if (plugin_http_transparent_accept) {
+    PluginVCCore *new_pvc = PluginVCCore::alloc();
+
+    // set active address expects host ordering and the above casts do not
+    // swap when it is required
+    new_pvc->set_active_addr(client_addr);
+    new_pvc->set_passive_addr(server_addr);
+    new_pvc->set_transparent(true, true);
+    new_pvc->set_accept_cont(plugin_http_transparent_accept);
+
+    PluginVC *return_vc = new_pvc->connect();
+
+    if (return_vc != NULL) {
+      PluginVC* other_side = return_vc->get_other_side();
+
+      if(other_side != NULL) {
+        other_side->set_is_internal_request(true);
+      }
+    }
+
+    return reinterpret_cast<TSVConn>(return_vc);
+  }
+
+  return NULL;
+}
+
+/* Actions */
+void
+TSActionCancel(TSAction actionp)
+{
+  Action *a;
+  INKContInternal *i;
+
+/* This is a hack. SHould be handled in ink_types */
+  if ((uintptr_t) actionp & 0x1) {
+    a = (Action *) ((uintptr_t) actionp - 1);
+    i = (INKContInternal *) a->continuation;
+    i->handle_event_count(EVENT_IMMEDIATE);
+  } else {
+    a = (Action *) actionp;
+  }
+
+  a->cancel();
+}
+
+// Currently no error handling necessary, actionp can be anything.
+int
+TSActionDone(TSAction actionp)
+{
+  return ((Action *)actionp == ACTION_RESULT_DONE) ? 1 : 0;
+}
+
+/* Connections */
+
+TSVConn
+TSVConnCreate(TSEventFunc event_funcp, TSMutex mutexp)
+{
+  if (mutexp == NULL)
+    mutexp = (TSMutex) new_ProxyMutex();
+
+  // TODO: probably don't need this if memory allocations fails properly
+  sdk_assert(sdk_sanity_check_mutex(mutexp) == TS_SUCCESS);
+
+  INKVConnInternal *i = INKVConnAllocator.alloc();
+
+  sdk_assert(sdk_sanity_check_null_ptr((void*)i) == TS_SUCCESS);
+
+  i->init(event_funcp, mutexp);
+  return reinterpret_cast<TSVConn>(i);
+}
+
+struct ActionSink : public Continuation
+{
+  ActionSink() : Continuation(NULL) {
+    SET_HANDLER(&ActionSink::mainEvent);
+  }
+
+  int mainEvent(int event, void * edata) {
+    // Just sink the event ...
+    Debug("iocore_net", "sinking event=%d (%s), edata=%p",
+        event, HttpDebugNames::get_event_name(event), edata);
+    return EVENT_CONT;
+  }
+};
+
+static ActionSink a;
+
+TSVConn
+TSVConnFdCreate(int fd)
+{
+  UnixNetVConnection * vc;
+
+  if (unlikely(fd == NO_FD)) {
+    return NULL;
+  }
+
+  vc = (UnixNetVConnection *)netProcessor.allocate_vc(this_ethread());
+  if (vc == NULL) {
+    return NULL;
+  }
+
+  // We need to set an Action to handle NET_EVENT_OPEN* events. Since we have a
+  // socket already, we don't need to do anything in those events, so we can just
+  // sink them. It's better to sink them here, than to make the NetVC code more
+  // complex.
+  vc->action_ = &a;
+
+  vc->id = net_next_connection_number();
+  vc->submit_time = ink_get_hrtime();
+  vc->set_is_transparent(false);
+  vc->mutex = new_ProxyMutex();
+
+  if (vc->connectUp(this_ethread(), fd) != CONNECT_SUCCESS) {
+    vc->free(this_ethread());
+    return NULL;
+  }
+
+  NET_SUM_GLOBAL_DYN_STAT(net_connections_currently_open_stat, 1);
+  return reinterpret_cast<TSVConn>(vc);
+}
+
+TSVIO
+TSVConnReadVIOGet(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *)connp;
+  TSVIO data;
+
+  if (vc->get_data(TS_API_DATA_READ_VIO, &data)) {
+    return data;
+  }
+
+  return NULL;
+}
+
+TSVIO
+TSVConnWriteVIOGet(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *) connp;
+  TSVIO data;
+
+  if (vc->get_data(TS_API_DATA_WRITE_VIO, &data)) {
+    return data;
+  }
+
+  return NULL;
+}
+
+int
+TSVConnClosedGet(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *) connp;
+  int data;
+
+  vc->get_data(TS_API_DATA_CLOSED, &data); // Can not fail for this case
+  return data;
+}
+
+TSVIO
+TSVConnRead(TSVConn connp, TSCont contp, TSIOBuffer bufp, int64_t nbytes)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+  sdk_assert(nbytes >= 0);
+
+  FORCE_PLUGIN_MUTEX(contp);
+  VConnection *vc = (VConnection *) connp;
+
+  return reinterpret_cast<TSVIO>(vc->do_io(VIO::READ, (INKContInternal *) contp, nbytes, (MIOBuffer *) bufp));
+}
+
+TSVIO
+TSVConnWrite(TSVConn connp, TSCont contp, TSIOBufferReader readerp, int64_t nbytes)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+  sdk_assert(nbytes >= 0);
+
+  FORCE_PLUGIN_MUTEX(contp);
+  VConnection *vc = (VConnection *) connp;
+
+  return reinterpret_cast<TSVIO>(vc->do_io_write((INKContInternal *) contp, nbytes, (IOBufferReader *) readerp));
+}
+
+void
+TSVConnClose(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *) connp;
+  vc->do_io_close();
+}
+
+void
+TSVConnAbort(TSVConn connp, int error)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *) connp;
+  vc->do_io_close(error);
+}
+
+void
+TSVConnShutdown(TSVConn connp, int read, int write)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *) connp;
+
+  if (read && write) {
+    vc->do_io_shutdown(IO_SHUTDOWN_READWRITE);
+  } else if (read) {
+    vc->do_io_shutdown(IO_SHUTDOWN_READ);
+  } else if (write) {
+    vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+  }
+}
+
+int64_t
+TSVConnCacheObjectSizeGet(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  CacheVC *vc = (CacheVC *)connp;
+  return vc->get_object_size();
+}
+
+void
+TSVConnCacheHttpInfoSet(TSVConn connp, TSCacheHttpInfo infop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  CacheVC *vc = (CacheVC *) connp;
+  if (vc->base_stat == cache_scan_active_stat)
+    vc->set_http_info((CacheHTTPInfo *) infop);
+}
+
+/* Transformations */
+
+TSVConn
+TSTransformCreate(TSEventFunc event_funcp, TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  // TODO: This is somewhat of a leap of faith, but I think a TSHttpTxn is just another
+  // fancy continuation?
+  return TSVConnCreate(event_funcp, TSContMutexGet(reinterpret_cast<TSCont>(txnp)));
+}
+
+TSVConn
+TSTransformOutputVConnGet(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  VConnection *vc = (VConnection *) connp;
+  TSVConn data;
+
+  vc->get_data(TS_API_DATA_OUTPUT_VC, &data); // This case can't fail.
+  return data;
+}
+
+void
+TSHttpTxnServerIntercept(TSCont contp, TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+
+  HttpSM *http_sm = (HttpSM *)txnp;
+  INKContInternal *i = (INKContInternal *)contp;
+
+  // Must have a mutex
+  sdk_assert(sdk_sanity_check_null_ptr((void*)i->mutex) == TS_SUCCESS);
+
+  http_sm->plugin_tunnel_type = HTTP_PLUGIN_AS_SERVER;
+  http_sm->plugin_tunnel = PluginVCCore::alloc();
+  http_sm->plugin_tunnel->set_accept_cont(i);
+}
+
+void
+TSHttpTxnIntercept(TSCont contp, TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+
+  HttpSM *http_sm = (HttpSM *) txnp;
+  INKContInternal *i = (INKContInternal *) contp;
+
+  // Must have a mutex
+  sdk_assert(sdk_sanity_check_null_ptr((void*)i->mutex) == TS_SUCCESS);
+
+  http_sm->plugin_tunnel_type = HTTP_PLUGIN_AS_INTERCEPT;
+  http_sm->plugin_tunnel = PluginVCCore::alloc();
+  http_sm->plugin_tunnel->set_accept_cont(i);
+}
+
+/* Net VConnections */
+void
+TSVConnInactivityTimeoutSet(TSVConn connp, TSHRTime timeout)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  NetVConnection *vc = (NetVConnection *) connp;
+  vc->set_inactivity_timeout(timeout);
+}
+
+void
+TSVConnInactivityTimeoutCancel(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  NetVConnection *vc = (NetVConnection *) connp;
+  vc->cancel_inactivity_timeout();
+}
+
+void
+TSVConnActiveTimeoutSet(TSVConn connp, TSHRTime timeout)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  NetVConnection *vc = (NetVConnection *) connp;
+  vc->set_active_timeout(timeout);
+}
+
+void
+TSVConnActiveTimeoutCancel(TSVConn connp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+
+  NetVConnection *vc = (NetVConnection *) connp;
+  vc->cancel_active_timeout();
+}
+
+sockaddr const*
+TSNetVConnLocalAddrGet(TSVConn connp) {
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+  NetVConnection* vc = reinterpret_cast<NetVConnection*>(connp);
+  return vc->get_local_addr();
+}
+
+
+sockaddr const*
+TSNetVConnRemoteAddrGet(TSVConn connp) {
+  sdk_assert(sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS);
+  NetVConnection* vc = reinterpret_cast<NetVConnection*>(connp);
+  return vc->get_remote_addr();
+}
+
+TSAction
+TSNetConnect(TSCont contp, sockaddr const* addr)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(ats_is_ip(addr));
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  return reinterpret_cast<TSAction>(
+    netProcessor.connect_re(reinterpret_cast<INKContInternal*>(contp), addr)
+  );
+}
+
+TSAction
+TSNetConnectTransparent(TSCont contp, sockaddr const* client_addr, sockaddr const* server_addr)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(ats_is_ip(server_addr));
+  sdk_assert(ats_ip_are_compatible(client_addr, server_addr));
+
+  NetVCOptions opt;
+  opt.addr_binding = NetVCOptions::FOREIGN_ADDR;
+  opt.local_ip.assign(client_addr);
+  opt.local_port = ats_ip_port_host_order(client_addr);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  return reinterpret_cast<TSAction>(
+    netProcessor.connect_re(reinterpret_cast<INKContInternal*>(contp), server_addr, &opt)
+  );
+}
+
+TSAction
+TSNetAccept(TSCont contp, int port, int domain, int accept_threads)
+{
+  NetProcessor::AcceptOptions opt;
+
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(port > 0);
+  sdk_assert(accept_threads >= -1);
+
+  // TODO: Does this imply that only one "accept thread" could be
+  // doing an accept at any time?
+  FORCE_PLUGIN_MUTEX(contp);
+
+  // If it's not IPv6, force to IPv4.
+  opt.ip_family = domain == AF_INET6 ? AF_INET6 : AF_INET;
+  opt.accept_threads = accept_threads;
+  opt.local_port = port;
+  opt.frequent_accept = false;
+
+  INKContInternal *i = (INKContInternal *) contp;
+  return (TSAction)netProcessor.accept(i, opt);
+}
+
+/* From proxy/http/HttpProxyServerMain.c: */
+extern bool ssl_register_protocol(const char *, Continuation *);
+extern bool ssl_unregister_protocol(const char *, Continuation *);
+
+TSReturnCode
+#if TS_USE_TLS_NPN
+TSNetAcceptNamedProtocol(TSCont contp, const char * protocol)
+{
+  sdk_assert(protocol != NULL);
+  sdk_assert(contp != NULL);
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+
+  if (!ssl_register_protocol(protocol, (INKContInternal *)contp)) {
+    ssl_unregister_protocol(protocol, (INKContInternal *)contp);
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+#else /* TS_USE_TLS_NPN */
+TSNetAcceptNamedProtocol(TSCont, const char *)
+{
+  return TS_ERROR;
+}
+#endif /* TS_USE_TLS_NPN */
+
+/* DNS Lookups */
+TSAction
+TSHostLookup(TSCont contp, const char *hostname, size_t namelen)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)hostname) == TS_SUCCESS);
+  sdk_assert(namelen > 0);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  INKContInternal *i = (INKContInternal *) contp;
+  return (TSAction)hostDBProcessor.getbyname_re(i, hostname, namelen);
+}
+
+sockaddr const*
+TSHostLookupResultAddrGet(TSHostLookupResult lookup_result)
+{
+  sdk_assert(sdk_sanity_check_hostlookup_structure(lookup_result) == TS_SUCCESS);
+  HostDBInfo* di = reinterpret_cast<HostDBInfo*>(lookup_result);
+  return di->ip();
+}
+
+/*
+ * checks if the cache is ready
+ */
+
+/* Only TSCacheReady exposed in SDK. No need of TSCacheDataTypeReady */
+/* because SDK cache API supports only the data type: NONE */
+TSReturnCode
+TSCacheReady(int *is_ready)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)is_ready) == TS_SUCCESS);
+  return TSCacheDataTypeReady(TS_CACHE_DATA_TYPE_NONE, is_ready);
+}
+
+/* Private API (used by Mixt) */
+TSReturnCode
+TSCacheDataTypeReady(TSCacheDataType type, int *is_ready)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)is_ready) == TS_SUCCESS);
+
+  CacheFragType frag_type;
+
+  switch (type) {
+  case TS_CACHE_DATA_TYPE_NONE:
+    frag_type = CACHE_FRAG_TYPE_NONE;
+    break;
+  case TS_CACHE_DATA_TYPE_OTHER:      /* other maps to http */
+  case TS_CACHE_DATA_TYPE_HTTP:
+    frag_type = CACHE_FRAG_TYPE_HTTP;
+    break;
+  default:
+    *is_ready = 0;
+    return TS_ERROR;
+  }
+
+  *is_ready = cacheProcessor.IsCacheReady(frag_type);
+  return TS_SUCCESS;
+}
+
+/* Cache VConnections */
+TSAction
+TSCacheRead(TSCont contp, TSCacheKey key)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  CacheInfo *info = (CacheInfo *) key;
+  Continuation *i = (INKContInternal *) contp;
+
+  return (TSAction)cacheProcessor.open_read(i, &info->cache_key, true, info->frag_type, info->hostname, info->len);
+}
+
+TSAction
+TSCacheWrite(TSCont contp, TSCacheKey key)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  CacheInfo *info = (CacheInfo *) key;
+  Continuation *i = (INKContInternal *) contp;
+
+  return (TSAction)cacheProcessor.open_write(i, &info->cache_key, true, info->frag_type, 0, false, info->pin_in_cache,
+                                             info->hostname, info->len);
+}
+
+TSAction
+TSCacheRemove(TSCont contp, TSCacheKey key)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_cachekey(key) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  CacheInfo *info = (CacheInfo *) key;
+  INKContInternal *i = (INKContInternal *) contp;
+
+  return (TSAction)cacheProcessor.remove(i, &info->cache_key, true, info->frag_type, true, false, info->hostname, info->len);
+}
+
+TSAction
+TSCacheScan(TSCont contp, TSCacheKey key, int KB_per_second)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+  // NOTE: key can be NULl here, so don't check for it.
+
+  FORCE_PLUGIN_MUTEX(contp);
+
+  INKContInternal *i = (INKContInternal *) contp;
+
+  if (key) {
+    CacheInfo *info = (CacheInfo *) key;
+    return (TSAction)cacheProcessor.scan(i, info->hostname, info->len, KB_per_second);
+  }
+  return reinterpret_cast<TSAction>(cacheProcessor.scan(i, 0, 0, KB_per_second));
+}
+
+
+/************************   REC Stats API    **************************/
+int
+TSStatCreate(const char *the_name, TSRecordDataType the_type, TSStatPersistence persist, TSStatSync sync)
+{
+  int id = ink_atomic_increment(&top_stat, 1);
+  RecRawStatSyncCb syncer = RecRawStatSyncCount;
+
+  // TODO: This only supports "int" data types at this point, since the "Raw" stats
+  // interfaces only supports integers. Going forward, we could extend either the "Raw"
+  // stats APIs, or make non-int use the direct (synchronous) stats APIs (slower).
+  if ((sdk_sanity_check_null_ptr((void*)the_name) != TS_SUCCESS) ||
+      (sdk_sanity_check_null_ptr((void*)api_rsb) != TS_SUCCESS) ||
+      (id >= api_rsb->max_stats))
+    return TS_ERROR;
+
+  switch (sync) {
+  case TS_STAT_SYNC_SUM:
+    syncer = RecRawStatSyncSum;
+    break;
+  case TS_STAT_SYNC_AVG:
+    syncer = RecRawStatSyncAvg;
+    break;
+  case TS_STAT_SYNC_TIMEAVG:
+    syncer = RecRawStatSyncHrTimeAvg;
+    break;
+  default:
+    syncer = RecRawStatSyncCount;
+    break;
+  }
+
+  switch (persist) {
+  case TS_STAT_PERSISTENT:
+    RecRegisterRawStat(api_rsb, RECT_PLUGIN, the_name, (RecDataT)the_type, RECP_PERSISTENT, id, syncer);
+    break;
+  case TS_STAT_NON_PERSISTENT:
+    RecRegisterRawStat(api_rsb, RECT_PLUGIN, the_name, (RecDataT)the_type, RECP_NON_PERSISTENT, id, syncer);
+    break;
+  default:
+    return TS_ERROR;
+  }
+
+  return id;
+}
+
+void
+TSStatIntIncrement(int the_stat, TSMgmtInt amount)
+{
+  RecIncrRawStat(api_rsb, NULL, the_stat, amount);
+}
+
+void
+TSStatIntDecrement(int the_stat, TSMgmtInt amount)
+{
+  RecDecrRawStat(api_rsb, NULL, the_stat, amount);
+}
+
+TSMgmtInt
+TSStatIntGet(int the_stat)
+{
+  TSMgmtInt value;
+
+  RecGetGlobalRawStatSum(api_rsb, the_stat, &value);
+  return value;
+}
+
+void
+TSStatIntSet(int the_stat, TSMgmtInt value)
+{
+  RecSetGlobalRawStatSum(api_rsb, the_stat, value);
+}
+
+TSReturnCode
+TSStatFindName(const char* name, int *idp)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)name) == TS_SUCCESS);
+
+  if (RecGetRecordOrderAndId(name, NULL, idp) == REC_ERR_OKAY)
+    return TS_SUCCESS;
+
+  return TS_ERROR;
+}
+
+
+/**************************    Stats API    ****************************/
+// THESE APIS ARE DEPRECATED, USE THE REC APIs INSTEAD
+// #define ink_sanity_check_stat_structure(_x) TS_SUCCESS
+
+inline TSReturnCode
+ink_sanity_check_stat_structure(void *obj)
+{
+  if (obj == NULL)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+/**************************   Tracing API   ****************************/
+// returns 1 or 0 to indicate whether TS is being run with a debug tag.
+int
+TSIsDebugTagSet(const char *t)
+{
+  return (diags->on(t, DiagsTagType_Debug)) ? 1 : 0;
+}
+
+void
+TSDebugSpecific(int debug_flag, const char *tag, const char *format_str, ...)
+{
+  if (diags->on(tag, DiagsTagType_Debug) || (debug_flag  && diags->on())) {
+    va_list ap;
+
+    va_start(ap, format_str);
+    diags->print_va(tag, DL_Diag, NULL, format_str, ap);
+    va_end(ap);
+  }
+}
+
+// Plugins would use TSDebug just as the TS internal uses Debug
+// e.g. TSDebug("plugin-cool", "Snoopy is a cool guy even after %d requests.\n", num_reqs);
+void
+TSDebug(const char *tag, const char *format_str, ...)
+{
+  if (diags->on(tag, DiagsTagType_Debug)) {
+    va_list ap;
+
+    va_start(ap, format_str);
+    diags->print_va(tag, DL_Diag, NULL, format_str, ap);
+    va_end(ap);
+  }
+}
+
+/**************************   Logging API   ****************************/
+
+TSReturnCode
+TSTextLogObjectCreate(const char *filename, int mode, TSTextLogObject *new_object)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)filename) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)new_object) == TS_SUCCESS);
+
+  if (mode <0 || mode >= TS_LOG_MODE_INVALID_FLAG) {
+    *new_object = NULL;
+    return TS_ERROR;
+  }
+
+  TextLogObject *tlog = new TextLogObject(filename, Log::config->logfile_dir,
+                                          (bool) mode & TS_LOG_MODE_ADD_TIMESTAMP,
+                                          NULL,
+                                          Log::config->rolling_enabled,
+                                          Log::config->collation_preproc_threads,
+                                          Log::config->rolling_interval_sec,
+                                          Log::config->rolling_offset_hr,
+                                          Log::config->rolling_size_mb);
+  if (tlog == NULL) {
+    *new_object = NULL;
+    return TS_ERROR;
+  }
+
+  int err = (mode & TS_LOG_MODE_DO_NOT_RENAME ?
+             Log::config->log_object_manager.manage_api_object(tlog, 0) :
+             Log::config->log_object_manager.manage_api_object(tlog));
+  if (err != LogObjectManager::NO_FILENAME_CONFLICTS) {
+    delete tlog;
+    *new_object = NULL;
+    return TS_ERROR;
+  }
+
+  *new_object = (TSTextLogObject) tlog;
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSTextLogObjectWrite(TSTextLogObject the_object, const char *format, ...)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)format) == TS_SUCCESS);
+
+  TSReturnCode retVal = TS_SUCCESS;
+
+  va_list ap;
+  va_start(ap, format);
+  switch (((TextLogObject *) the_object)->va_write(format, ap)) {
+  case (Log::LOG_OK):
+  case (Log::SKIP):
+  case (Log::AGGR):
+    break;
+  case (Log::FULL):
+    retVal = TS_ERROR;
+    break;
+  case (Log::FAIL):
+    retVal = TS_ERROR;
+    break;
+  default:
+    ink_assert(!"invalid return code");
+  }
+  va_end(ap);
+
+  return retVal;
+}
+
+void
+TSTextLogObjectFlush(TSTextLogObject the_object)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+
+  ((TextLogObject *) the_object)->force_new_buffer();
+}
+
+TSReturnCode
+TSTextLogObjectDestroy(TSTextLogObject the_object)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+
+  if (Log::config->log_object_manager.unmanage_api_object((TextLogObject *) the_object))
+    return TS_SUCCESS;
+
+  return TS_ERROR;
+}
+
+void
+TSTextLogObjectHeaderSet(TSTextLogObject the_object, const char *header)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+
+  ((TextLogObject *) the_object)->set_log_file_header(header);
+}
+
+TSReturnCode
+TSTextLogObjectRollingEnabledSet(TSTextLogObject the_object, int rolling_enabled)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+
+  if (LogRollingEnabledIsValid(rolling_enabled)) {
+    ((TextLogObject *) the_object)->set_rolling_enabled((Log::RollingEnabledValues)rolling_enabled);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+void
+TSTextLogObjectRollingIntervalSecSet(TSTextLogObject the_object, int rolling_interval_sec)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+
+  ((TextLogObject *) the_object)->set_rolling_interval_sec(rolling_interval_sec);
+}
+
+void
+TSTextLogObjectRollingOffsetHrSet(TSTextLogObject the_object, int rolling_offset_hr)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(the_object) == TS_SUCCESS);
+
+  ((TextLogObject *) the_object)->set_rolling_offset_hr(rolling_offset_hr);
+}
+
+TSReturnCode
+TSHttpSsnClientFdGet(TSHttpSsn ssnp, int *fdp)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)fdp) == TS_SUCCESS);
+
+  HttpClientSession *cs = (HttpClientSession *) ssnp;
+
+  if (cs == NULL)
+    return TS_ERROR;
+
+  NetVConnection *vc = cs->get_netvc();
+  if (vc == NULL)
+    return TS_ERROR;
+
+  *fdp = vc->get_socket();
+  return TS_SUCCESS;
+}
+TSReturnCode
+TSHttpTxnClientFdGet(TSHttpTxn txnp, int *fdp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)fdp) == TS_SUCCESS);
+
+  TSHttpSsn ssnp = TSHttpTxnSsnGet(txnp);
+  return TSHttpSsnClientFdGet(ssnp, fdp);
+}
+
+/* Matcher Utils */
+char *
+TSMatcherReadIntoBuffer(char *file_name, int *file_len)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)file_name) == TS_SUCCESS);
+  return readIntoBuffer((char *) file_name, "TSMatcher", file_len);
+}
+
+char *
+TSMatcherTokLine(char *buffer, char **last)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)buffer) == TS_SUCCESS);
+  return tokLine(buffer, last);
+}
+
+char *
+TSMatcherExtractIPRange(char *match_str, uint32_t *addr1, uint32_t *addr2)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)match_str) == TS_SUCCESS);
+  return (char*)ExtractIpRange(match_str, addr1, addr2);
+}
+// Conflict in header due to overload (must be C compatible).
+char *
+TSMatcherExtractIPRange(char *match_str, sockaddr* addr1, sockaddr* addr2)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)match_str) == TS_SUCCESS);
+  return (char*)ExtractIpRange(match_str, addr1, addr2);
+}
+
+TSMatcherLine
+TSMatcherLineCreate(void)
+{
+  return reinterpret_cast<TSMatcherLine>(ats_malloc(sizeof(matcher_line)));
+}
+
+void
+TSMatcherLineDestroy(TSMatcherLine ml)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)ml) == TS_SUCCESS);
+  ats_free(ml);
+}
+
+const char *
+TSMatcherParseSrcIPConfigLine(char *line, TSMatcherLine ml)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)line) == TS_SUCCESS);
+  return parseConfigLine(line, (matcher_line *) ml, &ip_allow_tags);
+}
+
+char *
+TSMatcherLineName(TSMatcherLine ml, int element)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)ml) == TS_SUCCESS);
+  return (((matcher_line *) ml)->line)[0][element];
+}
+
+char *
+TSMatcherLineValue(TSMatcherLine ml, int element)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)ml) == TS_SUCCESS);
+  return (((matcher_line *) ml)->line)[1][element];
+}
+
+/* Configuration Setting */
+TSReturnCode
+TSMgmtConfigIntSet(const char *var_name, TSMgmtInt value)
+{
+  TSMgmtInt result;
+  char *buffer;
+
+  // is this a valid integer?
+  if (TSMgmtIntGet(var_name, &result) != TS_SUCCESS)
+    return TS_ERROR;
+
+  // construct a buffer
+  int buffer_size = strlen(var_name) + 1 + 32 + 1 + 64 + 1;
+
+  buffer = (char *) alloca(buffer_size);
+  snprintf(buffer, buffer_size, "%s %d %" PRId64 "", var_name, MGMT_INT, value);
+
+  // tell manager to set the configuration; note that this is not
+  // transactional (e.g. we return control to the plugin before the
+  // value is commited to disk by the manager)
+  RecSignalManager(MGMT_SIGNAL_PLUGIN_SET_CONFIG, buffer);
+
+  return TS_SUCCESS;
+}
+
+void
+TSICPFreshnessFuncSet(TSPluginFreshnessCalcFunc funcp)
+{
+  pluginFreshnessCalcFunc = (PluginFreshnessCalcFunc) funcp;
+}
+
+TSReturnCode
+TSICPCachedReqGet(TSCont contp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)obj) == TS_SUCCESS);
+
+  ICPPeerReadCont *sm = (ICPPeerReadCont *)contp;
+  HTTPInfo *cached_obj;
+
+  cached_obj = sm->_object_read;
+  if (cached_obj == NULL || !cached_obj->valid())
+    return TS_ERROR;
+
+  HTTPHdr *cached_hdr = cached_obj->request_get();
+  if (!cached_hdr->valid())
+    return TS_ERROR;;
+
+  // We can't use the HdrHeapSDKHandle structure in the RamCache since multiple
+  //  threads can access.  We need to create our own for the transaction and return that.
+  HdrHeapSDKHandle **handle = &(sm->_cache_req_hdr_heap_handle);
+
+  if (*handle == NULL) {
+    *handle = (HdrHeapSDKHandle *)ats_malloc(sizeof(HdrHeapSDKHandle));
+    (*handle)->m_heap = cached_hdr->m_heap;
+  }
+
+  *(reinterpret_cast<HdrHeapSDKHandle**>(bufp)) = *handle;
+  *obj = reinterpret_cast<TSMLoc>(cached_hdr->m_http);
+
+  return sdk_sanity_check_mbuffer(*bufp);
+}
+
+TSReturnCode
+TSICPCachedRespGet(TSCont contp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)obj) == TS_SUCCESS);
+
+  ICPPeerReadCont *sm = (ICPPeerReadCont *) contp;
+  HTTPInfo *cached_obj;
+
+  cached_obj = sm->_object_read;
+  if (cached_obj == NULL || !cached_obj->valid())
+    return TS_ERROR;
+
+  HTTPHdr *cached_hdr = cached_obj->response_get();
+  if (!cached_hdr->valid())
+    return TS_ERROR;
+
+  // We can't use the HdrHeapSDKHandle structure in the RamCache since multiple
+  //  threads can access.  We need to create our own for the transaction and return that.
+  HdrHeapSDKHandle **handle = &(sm->_cache_resp_hdr_heap_handle);
+
+  if (*handle == NULL) {
+    *handle = (HdrHeapSDKHandle *)ats_malloc(sizeof(HdrHeapSDKHandle));
+    (*handle)->m_heap = cached_hdr->m_heap;
+  }
+
+  *(reinterpret_cast<HdrHeapSDKHandle**>(bufp)) = *handle;
+  *obj = reinterpret_cast<TSMLoc>(cached_hdr->m_http);
+
+  return sdk_sanity_check_mbuffer(*bufp);
+}
+
+TSReturnCode
+TSCacheUrlSet(TSHttpTxn txnp, const char *url, int length)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+  Debug("cache_url", "[TSCacheUrlSet]");
+
+  if (sm->t_state.cache_info.lookup_url == NULL) {
+    Debug("cache_url", "[TSCacheUrlSet] changing the cache url to: %s", url);
+
+    if (length == -1)
+      length = strlen(url);
+
+    sm->t_state.cache_info.lookup_url_storage.create(NULL);
+    sm->t_state.cache_info.lookup_url = &(sm->t_state.cache_info.lookup_url_storage);
+    sm->t_state.cache_info.lookup_url->parse(url, length);
+    return TS_SUCCESS;
+  }
+
+  return TS_ERROR;
+}
+
+void
+TSCacheHttpInfoKeySet(TSCacheHttpInfo infop, TSCacheKey keyp)
+{
+  // TODO: Check input ?
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+  INK_MD5 *key = (INK_MD5 *)keyp;
+
+  info->object_key_set(*key);
+}
+
+void
+TSCacheHttpInfoSizeSet(TSCacheHttpInfo infop, int64_t size)
+{
+  // TODO: Check input ?
+  CacheHTTPInfo *info = (CacheHTTPInfo *) infop;
+
+  info->object_size_set(size);
+}
+
+// This API tells the core to follow normal (301/302) redirects using the
+// standard Location: URL. This does not need to be called if you set an
+// explicit URL using TSRedirectUrlSet().
+TSReturnCode
+TSHttpTxnFollowRedirect(TSHttpTxn txnp, int on)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM *) txnp;
+
+  sm->enable_redirection = (on ? true : false);
+  return TS_SUCCESS;
+}
+
+// this function should be called at TS_EVENT_HTTP_READ_RESPONSE_HDR
+void
+TSHttpTxnRedirectUrlSet(TSHttpTxn txnp, const char* url, const int url_len)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)url) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*) txnp;
+
+  if (sm->redirect_url != NULL) {
+    ats_free(sm->redirect_url);
+    sm->redirect_url = NULL;
+    sm->redirect_url_len = 0;
+  }
+
+  sm->redirect_url = (char*)url;
+  sm->redirect_url_len = url_len;
+  sm->enable_redirection = true;
+}
+
+// Deprecated, remove for v6.0.0
+void
+TSRedirectUrlSet(TSHttpTxn txnp, const char* url, const int url_len)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)url) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*) txnp;
+
+  if (sm->redirect_url != NULL) {
+    ats_free(sm->redirect_url);
+    sm->redirect_url = NULL;
+    sm->redirect_url_len = 0;
+  }
+
+  sm->redirect_url = (char*)ats_malloc(url_len + 1);
+  ink_strlcpy(sm->redirect_url, url, url_len + 1);
+  sm->redirect_url_len = url_len;
+  // have to turn redirection on for this transaction if user wants to redirect to another URL
+  if (sm->enable_redirection == false) {
+    sm->enable_redirection = true;
+    // max-out "redirection_tries" to avoid the regular redirection being turned on in
+    // this transaction improperly. This variable doesn't affect the custom-redirection
+    sm->redirection_tries = HttpConfig::m_master.number_of_redirections;
+  }
+}
+
+const char*
+TSHttpTxnRedirectUrlGet(TSHttpTxn txnp, int *url_len_ptr)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*)txnp;
+
+  *url_len_ptr = sm->redirect_url_len;
+  return sm->redirect_url;
+}
+
+// Deprecated, remove for v6.0.0
+const char*
+TSRedirectUrlGet(TSHttpTxn txnp, int *url_len_ptr)
+{
+  return TSHttpTxnRedirectUrlGet(txnp, url_len_ptr);
+}
+
+int
+TSHttpTxnRedirectRetries(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*)txnp;
+
+  return sm->redirection_tries;
+}
+
+char*
+TSFetchRespGet(TSHttpTxn txnp, int *length)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+  FetchSM *fetch_sm = (FetchSM*)txnp;
+  return fetch_sm->resp_get(length);
+}
+
+TSReturnCode
+TSFetchPageRespGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *obj)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)obj) == TS_SUCCESS);
+
+  HTTPHdr *hptr = (HTTPHdr*) txnp;
+
+  if (hptr->valid()) {
+    *(reinterpret_cast<HTTPHdr**>(bufp)) = hptr;
+    *obj = reinterpret_cast<TSMLoc>(hptr->m_http);
+    return sdk_sanity_check_mbuffer(*bufp);
+  }
+
+  return TS_ERROR;
+}
+
+// Fetchpages SM
+extern ClassAllocator<FetchSM> FetchSMAllocator;
+
+void
+TSFetchPages(TSFetchUrlParams_t *params)
+{
+  TSFetchUrlParams_t *myparams = params;
+
+  while (myparams != NULL) {
+    FetchSM *fetch_sm =  FetchSMAllocator.alloc();
+    sockaddr* addr = ats_ip_sa_cast(&myparams->ip);
+
+    fetch_sm->init((Continuation*)myparams->contp, myparams->options,myparams->events, myparams->request, myparams->request_len, addr);
+    fetch_sm->httpConnect();
+    myparams= myparams->next;
+  }
+}
+
+void
+TSFetchUrl(const char* headers, int request_len, sockaddr const* ip , TSCont contp, TSFetchWakeUpOptions callback_options,TSFetchEvent events)
+{
+  if (callback_options != NO_CALLBACK) {
+    sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  }
+
+  FetchSM *fetch_sm =  FetchSMAllocator.alloc();
+
+  fetch_sm->init((Continuation*)contp, callback_options, events, headers, request_len, ip);
+  fetch_sm->httpConnect();
+}
+
+TSFetchSM
+TSFetchCreate(TSCont contp, TSFetchMethod method,
+              const char *url, const char *version,
+              struct sockaddr const* client_addr, int flags)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+  sdk_assert(ats_is_ip(client_addr));
+
+  FetchSM *fetch_sm = FetchSMAllocator.alloc();
+
+  fetch_sm->ext_init((Continuation*)contp, method, url, version,
+                     client_addr, flags);
+
+  return (TSFetchSM)fetch_sm;
+}
+
+void
+TSFetchHeaderAdd(TSFetchSM fetch_sm,
+                 const char *name, int name_len,
+                 const char *value, int value_len)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  ((FetchSM*)fetch_sm)->ext_add_header(name, name_len, value, value_len);
+}
+
+void
+TSFetchWriteData(TSFetchSM fetch_sm, const void *data, size_t len)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  ((FetchSM*)fetch_sm)->ext_write_data(data, len);
+}
+
+ssize_t
+TSFetchReadData(TSFetchSM fetch_sm, void *buf, size_t len)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  return ((FetchSM*)fetch_sm)->ext_read_data((char *)buf, len);
+}
+
+void
+TSFetchLaunch(TSFetchSM fetch_sm)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  ((FetchSM*)fetch_sm)->ext_lanuch();
+}
+
+void
+TSFetchDestroy(TSFetchSM fetch_sm)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  ((FetchSM*)fetch_sm)->ext_destroy();
+}
+
+void
+TSFetchUserDataSet(TSFetchSM fetch_sm, void *data)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  ((FetchSM*)fetch_sm)->ext_set_user_data(data);
+}
+
+# if 0
+void
+TSFetchClientProtoStackSet(TSFetchSM fetch_sm, TSClientProtoStack proto_stack)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  ((FetchSM*)fetch_sm)->ext_set_proto_stack(proto_stack);
+}
+
+TSClientProtoStack
+TSFetchClientProtoStackGet(TSFetchSM fetch_sm)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  return ((FetchSM*)fetch_sm)->ext_get_proto_stack();
+}
+# endif
+
+void*
+TSFetchUserDataGet(TSFetchSM fetch_sm)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  return ((FetchSM*)fetch_sm)->ext_get_user_data();
+}
+
+TSMBuffer
+TSFetchRespHdrMBufGet(TSFetchSM fetch_sm)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  return ((FetchSM*)fetch_sm)->resp_hdr_bufp();
+}
+
+TSMLoc
+TSFetchRespHdrMLocGet(TSFetchSM fetch_sm)
+{
+  sdk_assert(sdk_sanity_check_fetch_sm(fetch_sm) == TS_SUCCESS);
+
+  return ((FetchSM*)fetch_sm)->resp_hdr_mloc();
+}
+
+TSReturnCode
+TSHttpIsInternalSession(TSHttpSsn ssnp)
+{
+  HttpClientSession *cs = (HttpClientSession *) ssnp;
+  if (!cs) {
+    return TS_ERROR;
+  }
+
+  NetVConnection *vc = cs->get_netvc();
+  if (!vc) {
+    return TS_ERROR;
+  }
+
+  return vc->get_is_internal_request() ? TS_SUCCESS : TS_ERROR;
+}
+
+TSReturnCode
+TSHttpIsInternalRequest(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  return TSHttpIsInternalSession(TSHttpTxnSsnGet(txnp));
+}
+
+
+TSReturnCode
+TSAIORead(int fd, off_t offset, char* buf, size_t buffSize, TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(contp) == TS_SUCCESS);
+
+  Continuation* pCont = (Continuation*)contp;
+  AIOCallback* pAIO = new_AIOCallback();
+
+  if (pAIO == NULL)
+    return TS_ERROR;
+
+  pAIO->aiocb.aio_fildes = fd;
+  pAIO->aiocb.aio_offset = offset;
+  pAIO->aiocb.aio_nbytes = buffSize;
+
+
+  pAIO->aiocb.aio_buf = buf;
+  pAIO->action = pCont;
+  pAIO->thread = ((ProxyMutex*) pCont->mutex)->thread_holding;
+
+  if (ink_aio_read(pAIO, 1) == 1)
+    return TS_SUCCESS;
+
+  return TS_ERROR;
+}
+
+char*
+TSAIOBufGet(TSAIOCallback data)
+{
+  AIOCallback* pAIO = (AIOCallback*)data;
+  return (char*)pAIO->aiocb.aio_buf;
+}
+
+int
+TSAIONBytesGet(TSAIOCallback data)
+{
+  AIOCallback* pAIO = (AIOCallback*)data;
+  return (int)pAIO->aio_result;
+}
+
+TSReturnCode
+TSAIOWrite(int fd, off_t offset, char* buf, const size_t bufSize, TSCont contp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure (contp) == TS_SUCCESS);
+
+  Continuation* pCont = (Continuation*) contp;
+  AIOCallback* pAIO = new_AIOCallback();
+
+  // TODO: Might be able to remove this when allocations can never fail.
+  sdk_assert(sdk_sanity_check_null_ptr((void*)pAIO) == TS_SUCCESS);
+
+  pAIO->aiocb.aio_fildes = fd;
+  pAIO->aiocb.aio_offset = offset;
+  pAIO->aiocb.aio_buf = buf;
+  pAIO->aiocb.aio_nbytes = bufSize;
+  pAIO->action = pCont;
+  pAIO->thread = ((ProxyMutex*) pCont->mutex)->thread_holding;
+
+  if (ink_aio_write(pAIO, 1) == 1)
+    return TS_SUCCESS;
+
+  return TS_ERROR;
+}
+
+TSReturnCode
+TSAIOThreadNumSet(int thread_num)
+{
+#if AIO_MODE == AIO_MODE_NATIVE
+  (void)thread_num;
+  return TS_SUCCESS;
+#else
+  if (ink_aio_thread_num_set(thread_num))
+    return TS_SUCCESS;
+
+  return TS_ERROR;
+#endif
+}
+
+void
+TSRecordDump(int rec_type, TSRecordDumpCb callback, void *edata)
+{
+  RecDumpRecords((RecT)rec_type, (RecDumpEntryCb)callback, edata);
+}
+
+/* ability to skip the remap phase of the State Machine
+   this only really makes sense in TS_HTTP_READ_REQUEST_HDR_HOOK
+*/
+void
+TSSkipRemappingSet(TSHttpTxn txnp, int flag)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*) txnp;
+  sm->t_state.api_skip_all_remapping = (flag != 0);
+}
+
+// Little helper function to find the struct member
+static void*
+_conf_to_memberp(TSOverridableConfigKey conf,
+    OverridableHttpConfigParams *overridableHttpConfig,
+    OverridableDataType *typep)
+{
+  // The default is "Byte", make sure to override that for those configs which are "Int".
+  OverridableDataType typ = OVERRIDABLE_TYPE_BYTE;
+  void* ret = NULL;
+
+  switch (conf) {
+  case TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR:
+    ret = &overridableHttpConfig->maintain_pristine_host_hdr;
+    break;
+  case TS_CONFIG_HTTP_CHUNKING_ENABLED:
+    ret = &overridableHttpConfig->chunking_enabled;
+    break;
+  case TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED:
+    ret = &overridableHttpConfig->negative_caching_enabled;
+    break;
+  case TS_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->negative_caching_lifetime;
+    break;
+  case TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE:
+    ret = &overridableHttpConfig->cache_when_to_revalidate;
+    break;
+  case TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN:
+    ret = &overridableHttpConfig->keep_alive_enabled_in;
+    break;
+  case TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT:
+    ret = &overridableHttpConfig->keep_alive_enabled_out;
+    break;
+  case TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT:
+    ret = &overridableHttpConfig->keep_alive_post_out;
+    break;
+  case TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS:
+    ink_assert("Deprecated config key value - TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS");
+//    ret = &overridableHttpConfig->share_server_sessions;
+    break;
+  case TS_CONFIG_HTTP_SERVER_SESSION_SHARING_POOL:
+    ret = &overridableHttpConfig->server_session_sharing_pool;
+    break;
+  case TS_CONFIG_HTTP_SERVER_SESSION_SHARING_MATCH:
+    ret = &overridableHttpConfig->server_session_sharing_match;
+    break;
+  case TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->sock_recv_buffer_size_out;
+    break;
+  case TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->sock_send_buffer_size_out;
+    break;
+  case TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->sock_option_flag_out;
+    break;
+  case TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT:
+    ret = &overridableHttpConfig->fwd_proxy_auth_to_parent;
+    break;
+  case TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM:
+    ret = &overridableHttpConfig->anonymize_remove_from;
+    break;
+  case TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER:
+    ret = &overridableHttpConfig->anonymize_remove_referer;
+    break;
+  case TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT:
+    ret = &overridableHttpConfig->anonymize_remove_user_agent;
+    break;
+  case TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE:
+    ret = &overridableHttpConfig->anonymize_remove_cookie;
+    break;
+  case TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP:
+    ret = &overridableHttpConfig->anonymize_remove_client_ip;
+    break;
+  case TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP:
+    ret = &overridableHttpConfig->anonymize_insert_client_ip;
+    break;
+  case TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED:
+    ret = &overridableHttpConfig->proxy_response_server_enabled;
+    break;
+  case TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR:
+    ret = &overridableHttpConfig->insert_squid_x_forwarded_for;
+    break;
+  case TS_CONFIG_HTTP_SERVER_TCP_INIT_CWND:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->server_tcp_init_cwnd;
+    break;
+  case TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS:
+    ret = &overridableHttpConfig->send_http11_requests;
+    break;
+  case TS_CONFIG_HTTP_CACHE_HTTP:
+    ret = &overridableHttpConfig->cache_http;
+    break;
+  case TS_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL:
+    ret = &overridableHttpConfig->cache_cluster_cache_local;
+    break;
+  case TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE:
+    ret = &overridableHttpConfig->cache_ignore_client_no_cache;
+    break;
+  case TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE:
+    ret = &overridableHttpConfig->cache_ignore_client_cc_max_age;
+    break;
+  case TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE:
+    ret = &overridableHttpConfig->cache_ims_on_client_no_cache;
+    break;
+  case TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE:
+    ret = &overridableHttpConfig->cache_ignore_server_no_cache;
+    break;
+  case TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES:
+    ret = &overridableHttpConfig->cache_responses_to_cookies;
+    break;
+  case TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION:
+    ret = &overridableHttpConfig->cache_ignore_auth;
+    break;
+  case TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC:
+    ret = &overridableHttpConfig->cache_urls_that_look_dynamic;
+    break;
+  case TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS:
+    ret = &overridableHttpConfig->cache_required_headers;
+    break;
+  case TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR:
+    ret = &overridableHttpConfig->insert_request_via_string;
+    break;
+  case TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR:
+    ret = &overridableHttpConfig->insert_response_via_string;
+    break;
+  case TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->cache_heuristic_min_lifetime;
+    break;
+  case TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->cache_heuristic_max_lifetime;
+    break;
+  case TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->cache_guaranteed_min_lifetime;
+    break;
+  case TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->cache_guaranteed_max_lifetime;
+    break;
+  case TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->cache_max_stale_age;
+    break;
+  case TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->keep_alive_no_activity_timeout_in;
+    break;
+  case TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->keep_alive_no_activity_timeout_out;
+    break;
+  case TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->transaction_no_activity_timeout_in;
+    break;
+  case TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->transaction_no_activity_timeout_out;
+    break;
+  case TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->transaction_active_timeout_out;
+    break;
+  case TS_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->origin_max_connections;
+    break;
+  case TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->connect_attempts_max_retries;
+    break;
+  case TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->connect_attempts_max_retries_dead_server;
+    break;
+  case TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->connect_attempts_rr_retries;
+    break;
+  case TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->connect_attempts_timeout;
+    break;
+  case TS_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->post_connect_attempts_timeout;
+    break;
+  case TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->down_server_timeout;
+    break;
+  case TS_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->client_abort_threshold;
+    break;
+  case TS_CONFIG_HTTP_CACHE_FUZZ_TIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->freshness_fuzz_time;
+    break;
+  case TS_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->freshness_fuzz_min_time;
+    break;
+  case TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS:
+    ret = &overridableHttpConfig->doc_in_cache_skip_dns;
+    break;
+  case TS_CONFIG_HTTP_BACKGROUND_FILL_ACTIVE_TIMEOUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->background_fill_active_timeout;
+    break;
+  case TS_CONFIG_HTTP_RESPONSE_SERVER_STR:
+    typ = OVERRIDABLE_TYPE_STRING;
+    ret = &overridableHttpConfig->proxy_response_server_string;
+    break;
+  case TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR:
+    typ = OVERRIDABLE_TYPE_FLOAT;
+    ret = &overridableHttpConfig->cache_heuristic_lm_factor;
+    break;
+  case TS_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY:
+    typ = OVERRIDABLE_TYPE_FLOAT;
+    ret = &overridableHttpConfig->freshness_fuzz_prob;
+    break;
+  case TS_CONFIG_HTTP_BACKGROUND_FILL_COMPLETED_THRESHOLD:
+    typ = OVERRIDABLE_TYPE_FLOAT;
+    ret = &overridableHttpConfig->background_fill_threshold;
+    break;
+  case TS_CONFIG_NET_SOCK_PACKET_MARK_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->sock_packet_mark_out;
+    break;
+  case TS_CONFIG_NET_SOCK_PACKET_TOS_OUT:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->sock_packet_tos_out;
+    break;
+  case TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE:
+    ret = &overridableHttpConfig->insert_age_in_response;
+    break;
+  case TS_CONFIG_HTTP_CHUNKING_SIZE:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->http_chunking_size;
+    break;
+  case TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED:
+    ret = &overridableHttpConfig->flow_control_enabled;
+    break;
+  case TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER_MARK:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->flow_low_water_mark;
+    break;
+  case TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->flow_high_water_mark;
+    break;
+  case TS_CONFIG_HTTP_CACHE_RANGE_LOOKUP:
+    ret = &overridableHttpConfig->cache_range_lookup;
+    break;
+  case TS_CONFIG_HTTP_NORMALIZE_AE_GZIP:
+    ret = &overridableHttpConfig->normalize_ae_gzip;
+    break;
+  case TS_CONFIG_HTTP_DEFAULT_BUFFER_SIZE:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->default_buffer_size_index;
+    break;
+  case TS_CONFIG_HTTP_DEFAULT_BUFFER_WATER_MARK:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->default_buffer_water_mark;
+    break;
+  case TS_CONFIG_HTTP_REQUEST_HEADER_MAX_SIZE:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->request_hdr_max_size;
+    break;
+  case TS_CONFIG_HTTP_RESPONSE_HEADER_MAX_SIZE:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->response_hdr_max_size;
+    break;
+  case TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_ENABLED:
+    ret = &overridableHttpConfig->negative_revalidating_enabled;
+    break;
+  case TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_LIFETIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->negative_revalidating_lifetime;
+    break;
+  case TS_CONFIG_HTTP_ACCEPT_ENCODING_FILTER_ENABLED:
+    ret = &overridableHttpConfig->accept_encoding_filter_enabled;
+    break;
+  case TS_CONFIG_SSL_HSTS_MAX_AGE:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->proxy_response_hsts_max_age;
+    break;
+  case TS_CONFIG_SSL_HSTS_INCLUDE_SUBDOMAINS:
+    ret = &overridableHttpConfig->proxy_response_hsts_include_subdomains;
+    break;
+  case TS_CONFIG_HTTP_CACHE_OPEN_READ_RETRY_TIME:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->cache_open_read_retry_time;
+    break;
+  case TS_CONFIG_HTTP_CACHE_MAX_OPEN_READ_RETRIES:
+    typ = OVERRIDABLE_TYPE_INT;
+    ret = &overridableHttpConfig->max_cache_open_read_retries;
+    break;
+  case TS_CONFIG_HTTP_CACHE_RANGE_WRITE:
+    ret = &overridableHttpConfig->cache_range_write;
+    break;
+
+    // This helps avoiding compiler warnings, yet detect unhandled enum members.
+  case TS_CONFIG_NULL:
+  case TS_CONFIG_LAST_ENTRY:
+    typ = OVERRIDABLE_TYPE_NULL;
+    ret = NULL;
+    break;
+  }
+
+  *typep = typ;
+
+  return ret;
+}
+
+/* APIs to manipulate the overridable configuration options.
+*/
+TSReturnCode
+TSHttpTxnConfigIntSet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtInt value)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *s = reinterpret_cast<HttpSM*>(txnp);
+  OverridableDataType type;
+
+  s->t_state.setup_per_txn_configs();
+
+  // 4.1.X backwards compatibility - remove for 5.0
+  if (TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS == conf) {
+    switch (value) {
+    case 0: s->t_state.txn_conf->server_session_sharing_match = TS_SERVER_SESSION_SHARING_MATCH_NONE; break;
+    case 1:
+      s->t_state.txn_conf->server_session_sharing_match = TS_SERVER_SESSION_SHARING_MATCH_BOTH;
+      s->t_state.txn_conf->server_session_sharing_pool = TS_SERVER_SESSION_SHARING_POOL_GLOBAL;
+      break;
+    case 2:
+      s->t_state.txn_conf->server_session_sharing_match = TS_SERVER_SESSION_SHARING_MATCH_BOTH;
+      s->t_state.txn_conf->server_session_sharing_pool = TS_SERVER_SESSION_SHARING_POOL_THREAD;
+      break;
+    default:
+      return TS_ERROR;
+      break; // make the compiler happy
+    }
+    return TS_SUCCESS;
+  }
+  // end 4.1.X BC
+
+  void *dest = _conf_to_memberp(conf, s->t_state.txn_conf, &type);
+
+  if (!dest)
+    return TS_ERROR;
+
+  switch (type) {
+  case OVERRIDABLE_TYPE_INT:
+    *(static_cast<TSMgmtInt*>(dest)) = value;
+    break;
+  case OVERRIDABLE_TYPE_BYTE:
+    *(static_cast<TSMgmtByte*>(dest)) = static_cast<TSMgmtByte>(value);
+    break;
+  default:
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnConfigIntGet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtInt *value)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)value) == TS_SUCCESS);
+
+  HttpSM *s = reinterpret_cast<HttpSM*>(txnp);
+  OverridableDataType type;
+
+  // 4.1.X backwards compatibility - remove for 5.0
+  if (TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS == conf) {
+    if (s->t_state.txn_conf->server_session_sharing_match == TS_SERVER_SESSION_SHARING_MATCH_NONE)
+      *value = 0;
+    else if (s->t_state.txn_conf->server_session_sharing_match == TS_SERVER_SESSION_SHARING_MATCH_BOTH &&
+             s->t_state.txn_conf->server_session_sharing_pool == TS_SERVER_SESSION_SHARING_POOL_GLOBAL)
+      *value = 1;
+    else if (s->t_state.txn_conf->server_session_sharing_match == TS_SERVER_SESSION_SHARING_MATCH_BOTH &&
+             s->t_state.txn_conf->server_session_sharing_pool == TS_SERVER_SESSION_SHARING_POOL_THREAD)
+      *value = 2;
+    else
+      return TS_ERROR;
+    return TS_SUCCESS;
+  }
+  // end 4.1.X BC
+
+  void* src = _conf_to_memberp(conf, s->t_state.txn_conf, &type);
+
+  if (!src)
+    return TS_ERROR;
+
+  switch (type) {
+  case OVERRIDABLE_TYPE_INT:
+    *value = *(static_cast<TSMgmtInt*>(src));
+    break;
+  case OVERRIDABLE_TYPE_BYTE:
+    *value = *(static_cast<TSMgmtByte*>(src));
+    break;
+  default:
+    return TS_ERROR;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnConfigFloatSet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtFloat value)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+
+  HttpSM *s = reinterpret_cast<HttpSM*>(txnp);
+  OverridableDataType type;
+
+  s->t_state.setup_per_txn_configs();
+
+  TSMgmtFloat* dest = static_cast<TSMgmtFloat*>(_conf_to_memberp(conf, s->t_state.txn_conf, &type));
+
+  if (type != OVERRIDABLE_TYPE_FLOAT)
+    return TS_ERROR;
+
+  if (dest) {
+    *dest = value;
+    return TS_SUCCESS;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnConfigFloatGet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtFloat *value)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)value) == TS_SUCCESS);
+
+  OverridableDataType type;
+  TSMgmtFloat* dest = static_cast<TSMgmtFloat*>(_conf_to_memberp(conf, ((HttpSM*)txnp)->t_state.txn_conf, &type));
+
+  if (type != OVERRIDABLE_TYPE_FLOAT)
+    return TS_ERROR;
+
+  if (dest) {
+    *value = *dest;
+    return TS_SUCCESS;
+  }
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnConfigStringSet(TSHttpTxn txnp, TSOverridableConfigKey conf, const char* value, int length)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)value) == TS_SUCCESS);
+
+  if (length == -1)
+    length = strlen(value);
+
+  HttpSM *s = (HttpSM*) txnp;
+
+  s->t_state.setup_per_txn_configs();
+
+  switch (conf) {
+  case TS_CONFIG_HTTP_RESPONSE_SERVER_STR:
+    s->t_state.txn_conf->proxy_response_server_string = const_cast<char*>(value); // The "core" likes non-const char*
+    s->t_state.txn_conf->proxy_response_server_string_len = length;
+    break;
+  default:
+    return TS_ERROR;
+    break;
+  }
+
+  return TS_SUCCESS;
+}
+
+
+TSReturnCode
+TSHttpTxnConfigStringGet(TSHttpTxn txnp, TSOverridableConfigKey conf, const char **value, int *length)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void**)value) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)length) == TS_SUCCESS);
+
+  HttpSM *sm = (HttpSM*) txnp;
+
+  switch (conf) {
+  case TS_CONFIG_HTTP_RESPONSE_SERVER_STR:
+    *value = sm->t_state.txn_conf->proxy_response_server_string;
+    *length = sm->t_state.txn_conf->proxy_response_server_string_len;
+    break;
+  default:
+    return TS_ERROR;
+    break;
+  }
+
+  return TS_SUCCESS;
+}
+
+
+// This is pretty suboptimal, and should only be used outside the critical path.
+TSReturnCode
+TSHttpTxnConfigFind(const char* name, int length, TSOverridableConfigKey *conf, TSRecordDataType *type)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)name) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)conf) == TS_SUCCESS);
+
+  TSOverridableConfigKey cnf = TS_CONFIG_NULL;
+  TSRecordDataType typ = TS_RECORDDATATYPE_INT;
+
+  if (length == -1)
+    length = strlen(name);
+
+  // Lots of string comparisons here, but we avoid quite a few by checking lengths
+  switch (length) {
+  case 28:
+    if (!strncmp(name, "proxy.config.http.cache.http", length))
+      cnf = TS_CONFIG_HTTP_CACHE_HTTP;
+    break;
+
+  case 29:
+    if (!strncmp(name, "proxy.config.ssl.hsts_max_age", length))
+      cnf = TS_CONFIG_SSL_HSTS_MAX_AGE;
+    break;
+
+  case 31:
+    if (!strncmp(name, "proxy.config.http.chunking.size", length))
+      cnf = TS_CONFIG_HTTP_CHUNKING_SIZE;
+    break;
+
+  case 33:
+    if (!strncmp(name, "proxy.config.http.cache.fuzz.time", length))
+      cnf = TS_CONFIG_HTTP_CACHE_FUZZ_TIME;
+    break;
+
+  case 34:
+    if (!strncmp(name, "proxy.config.http.chunking_enabled", length))
+      cnf = TS_CONFIG_HTTP_CHUNKING_ENABLED;
+    break;
+
+  case 35:
+    switch (name[length-1]) {
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.range.write", length))
+        cnf = TS_CONFIG_HTTP_CACHE_RANGE_WRITE;
+      break;
+    case 'p':
+      if (!strncmp(name, "proxy.config.http.normalize_ae_gzip", length))
+        cnf = TS_CONFIG_HTTP_NORMALIZE_AE_GZIP;
+      break;
+    }
+    break;
+
+  case 36:
+    switch (name[length-1]) {
+    case 'p':
+      if (!strncmp(name, "proxy.config.http.cache.range.lookup", length))
+        cnf = TS_CONFIG_HTTP_CACHE_RANGE_LOOKUP;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.net.sock_packet_tos_out", length))
+        cnf = TS_CONFIG_NET_SOCK_PACKET_TOS_OUT;
+      break;
+    }
+    break;
+
+  case 37:
+    switch (name[length-1]) {
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.max_stale_age", length))
+        cnf = TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE;
+      else if (!strncmp(name, "proxy.config.http.cache.fuzz.min_time", length))
+        cnf = TS_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME;
+      else if (!strncmp(name, "proxy.config.http.default_buffer_size", length))
+        cnf = TS_CONFIG_HTTP_DEFAULT_BUFFER_SIZE;
+      break;
+    case 'r':
+      if (!strncmp(name, "proxy.config.http.response_server_str", length)) {
+        cnf = TS_CONFIG_HTTP_RESPONSE_SERVER_STR;
+        typ = TS_RECORDDATATYPE_STRING;
+      }
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.http.keep_alive_post_out", length))
+        cnf = TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT;
+      else if (!strncmp(name, "proxy.config.net.sock_option_flag_out", length))
+        cnf = TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT;
+      else if (!strncmp(name, "proxy.config.net.sock_packet_mark_out", length))
+        cnf = TS_CONFIG_NET_SOCK_PACKET_MARK_OUT;
+      break;
+    }
+    break;
+
+  case 38:
+    switch (name[length-1]) {
+    case 'd':
+      if (!strncmp(name, "proxy.config.http.server_tcp_init_cwnd", length))
+        cnf = TS_CONFIG_HTTP_SERVER_TCP_INIT_CWND;
+      else if (!strncmp(name, "proxy.config.http.flow_control.enabled", length))
+        cnf = TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED;
+      break;
+      break;
+    case 's':
+      if (!strncmp(name, "proxy.config.http.send_http11_requests", length))
+        cnf = TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS;
+      break;
+    }
+    break;
+
+  case 39:
+    switch (name[length-1]) {
+    case 'm':
+      if (!strncmp(name, "proxy.config.http.anonymize_remove_from", length))
+        cnf = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM;
+      break;
+    case 'n':
+      if (!strncmp(name, "proxy.config.http.keep_alive_enabled_in", length))
+        cnf = TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN;
+      break;
+    case 's':
+      if (!strncmp(name, "proxy.config.http.doc_in_cache_skip_dns", length))
+        cnf = TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS;
+      else if (!strncmp(name, "proxy.config.http.share_server_sessions", length))
+        cnf = TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS;
+      break;
+    }
+    break;
+
+  case 40:
+    switch (name[length-1]) {
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.down_server.cache_time", length))
+        cnf = TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME;
+      else if (!strncmp(name, "proxy.config.http.insert_age_in_response", length))
+        cnf = TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE;
+      break;
+    case 'r':
+      if (!strncmp(name, "proxy.config.url_remap.pristine_host_hdr", length))
+        cnf = TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR;
+      else if (!strncmp(name, "proxy.config.http.insert_request_via_str", length))
+        cnf = TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR;
+      else if (!strncmp(name, "proxy.config.http.flow_control.low_water", length))
+        cnf = TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER_MARK;
+      break;
+    case 's':
+      if (!strncmp(name, "proxy.config.http.origin_max_connections", length))
+        cnf = TS_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS;
+      else if (!strncmp(name, "proxy.config.http.cache.required_headers", length))
+        cnf = TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS;
+      else if (!strncmp(name, "proxy.config.ssl.hsts_include_subdomains", length))
+        cnf = TS_CONFIG_SSL_HSTS_INCLUDE_SUBDOMAINS;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.http.keep_alive_enabled_out", length))
+        cnf = TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT;
+      break;
+    case 'y':
+      if (!strncmp(name, "proxy.config.http.cache.fuzz.probability", length)) {
+        typ = TS_RECORDDATATYPE_FLOAT;
+        cnf = TS_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY;
+      }
+      break;
+    }
+    break;
+
+  case 41:
+    switch (name[length-1]) {
+    case 'd':
+      if (!strncmp(name, "proxy.config.http.response_server_enabled", length))
+        cnf = TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED;
+      break;
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.anonymize_remove_cookie", length))
+        cnf = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE;
+      else if (!strncmp(name, "proxy.config.http.request_header_max_size", length))
+        cnf = TS_CONFIG_HTTP_REQUEST_HEADER_MAX_SIZE;
+      break;
+    case 'r':
+      if (!strncmp(name, "proxy.config.http.insert_response_via_str", length))
+        cnf = TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR;
+      else if (!strncmp(name, "proxy.config.http.flow_control.high_water", length))
+        cnf = TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK;
+      break;
+    }
+    break;
+
+  case 42:
+    switch (name[length-1]) {
+    case 'd':
+      if (!strncmp(name, "proxy.config.http.negative_caching_enabled", length))
+        cnf = TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED;
+      break;
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.when_to_revalidate", length))
+        cnf = TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE;
+      else if (!strncmp(name, "proxy.config.http.response_header_max_size", length))
+        cnf = TS_CONFIG_HTTP_RESPONSE_HEADER_MAX_SIZE;
+      break;
+    case 'r':
+      if (!strncmp(name, "proxy.config.http.anonymize_remove_referer", length))
+        cnf = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.net.sock_recv_buffer_size_out", length))
+        cnf = TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT;
+      else if (!strncmp(name, "proxy.config.net.sock_send_buffer_size_out", length))
+        cnf = TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT;
+      else if (!strncmp(name, "proxy.config.http.connect_attempts_timeout", length))
+        cnf = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT;
+      break;
+    }
+    break;
+
+  case 43:
+    switch (name[length-1]) {
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.negative_caching_lifetime", length))
+        cnf = TS_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME;
+      break;
+    case 'k':
+      if (!strncmp(name, "proxy.config.http.default_buffer_water_mark", length))
+        cnf = TS_CONFIG_HTTP_DEFAULT_BUFFER_WATER_MARK;
+      break;
+    case 'l':
+      if (!strncmp(name, "proxy.config.http.cache.cluster_cache_local", length))
+        cnf = TS_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL;
+      break;
+    case 'r':
+      if (!strncmp(name, "proxy.config.http.cache.heuristic_lm_factor", length)) {
+        typ = TS_RECORDDATATYPE_FLOAT;
+        cnf = TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR;
+      }
+      break;
+    }
+    break;
+
+  case 44:
+    switch (name[length-1]) {
+    case 'p':
+      if (!strncmp(name, "proxy.config.http.anonymize_remove_client_ip", length))
+        cnf = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP;
+      else if (!strncmp(name, "proxy.config.http.anonymize_insert_client_ip", length))
+        cnf = TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP;
+      break;
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.open_read_retry_time", length))
+        cnf = TS_CONFIG_HTTP_CACHE_OPEN_READ_RETRY_TIME;
+      break;
+    }
+    break;
+
+  case 45:
+    switch (name[length-1]) {
+    case 'd':
+      if (!strncmp(name, "proxy.config.http.down_server.abort_threshold", length))
+        cnf = TS_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD;
+      break;
+    case 'n':
+      if (!strncmp(name, "proxy.config.http.cache.ignore_authentication", length))
+        cnf = TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.http.anonymize_remove_user_agent", length))
+        cnf = TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT;
+      break;
+    case 's':
+      if (!strncmp(name, "proxy.config.http.connect_attempts_rr_retries", length))
+        cnf = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES;
+      else if (!strncmp(name, "proxy.config.http.cache.max_open_read_retries", length))
+        cnf = TS_CONFIG_HTTP_CACHE_MAX_OPEN_READ_RETRIES;
+      break;
+    case 'l':
+      if (0 == strncmp(name, "proxy.config.http.server_session_sharing.pool", length))
+        cnf = TS_CONFIG_HTTP_SERVER_SESSION_SHARING_POOL;
+      break;
+    }
+    break;
+
+  case 46:
+    switch (name[length-1]) {
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.ignore_client_no_cache", length))
+        cnf = TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE;
+      else if (!strncmp(name, "proxy.config.http.cache.ims_on_client_no_cache", length))
+        cnf = TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE;
+      else if (!strncmp(name, "proxy.config.http.cache.ignore_server_no_cache", length))
+        cnf = TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE;
+      else if (!strncmp(name, "proxy.config.http.cache.heuristic_min_lifetime", length))
+        cnf = TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME;
+      else if (!strncmp(name, "proxy.config.http.cache.heuristic_max_lifetime", length))
+        cnf = TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME;
+      break;
+    case 'r':
+      if (!strncmp(name, "proxy.config.http.insert_squid_x_forwarded_for", length))
+        cnf = TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR;
+      break;
+    case 's':
+      if (!strncmp(name, "proxy.config.http.connect_attempts_max_retries", length))
+        cnf = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.http.forward.proxy_auth_to_parent", length))
+        cnf = TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT;
+      break;
+    case 'h':
+      if (0 == strncmp(name, "proxy.config.http.server_session_sharing.match", length))
+        cnf = TS_CONFIG_HTTP_SERVER_SESSION_SHARING_MATCH;
+      break;
+    }
+    break;
+
+  case 47:
+    switch (name[length-1]) {
+    case 'd':
+      if (!strncmp(name, "proxy.config.http.negative_revalidating_enabled", length))
+        cnf = TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_ENABLED;
+      break;
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.guaranteed_min_lifetime", length))
+        cnf = TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME;
+      else if (!strncmp(name, "proxy.config.http.cache.guaranteed_max_lifetime", length))
+        cnf = TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.http.post_connect_attempts_timeout", length))
+        cnf = TS_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT;
+      break;
+    }
+    break;
+
+  case 48:
+    switch (name[length-1]) {
+    case 'd':
+      if (!strncmp(name, "proxy.config.http.accept_encoding_filter_enabled", length))
+        cnf = TS_CONFIG_HTTP_ACCEPT_ENCODING_FILTER_ENABLED;
+      break;
+    case 'e':
+      if (!strncmp(name, "proxy.config.http.cache.ignore_client_cc_max_age", length))
+        cnf = TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE;
+      else if (!strncmp(name, "proxy.config.http.negative_revalidating_lifetime", length))
+        cnf = TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_LIFETIME;
+      break;
+    case 't':
+      switch (name[length-4]) {
+      case '_':
+        if (!strncmp(name, "proxy.config.http.transaction_active_timeout_out", length))
+          cnf = TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT;
+        break;
+      case 'e':
+          if (!strncmp(name, "proxy.config.http.background_fill_active_timeout", length)) {
+            cnf = TS_CONFIG_HTTP_BACKGROUND_FILL_ACTIVE_TIMEOUT;
+          }
+          break;
+      }
+      break;
+    }
+    break;
+
+  case 50:
+    if (!strncmp(name, "proxy.config.http.cache.cache_responses_to_cookies", length))
+      cnf = TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES;
+    break;
+
+  case 51:
+    if (!strncmp(name, "proxy.config.http.keep_alive_no_activity_timeout_in", length))
+      cnf = TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN;
+    break;
+
+  case 52:
+    switch (name[length-1]) {
+    case 'c':
+      if (!strncmp(name, "proxy.config.http.cache.cache_urls_that_look_dynamic", length))
+        cnf = TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC;
+      break;
+    case 'n':
+      if (!strncmp(name, "proxy.config.http.transaction_no_activity_timeout_in", length))
+        cnf = TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN;
+      break;
+    case 't':
+      if (!strncmp(name, "proxy.config.http.keep_alive_no_activity_timeout_out", length))
+        cnf = TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT;
+      break;
+    }
+    break;
+
+  case 53:
+    switch (name[length-1]) {
+      case 't':
+      if (!strncmp(name, "proxy.config.http.transaction_no_activity_timeout_out", length))
+        cnf = TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT;
+      break;
+      case 'd':
+        if (!strncmp(name, "proxy.config.http.background_fill_completed_threshold", length)) {
+          typ = TS_RECORDDATATYPE_FLOAT;
+          cnf = TS_CONFIG_HTTP_BACKGROUND_FILL_COMPLETED_THRESHOLD;
+        }
+      break;
+    }
+    break;
+
+  case 58:
+   if (!strncmp(name, "proxy.config.http.connect_attempts_max_retries_dead_server", length))
+     cnf = TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER;
+   break;
+  }
+
+  *conf = cnf;
+  if (type)
+    *type = typ;
+
+  return ((cnf != TS_CONFIG_NULL) ? TS_SUCCESS: TS_ERROR);
+}
+
+TSReturnCode
+TSHttpTxnPrivateSessionSet(TSHttpTxn txnp, int private_session)
+{
+  if (sdk_sanity_check_txn(txnp) != TS_SUCCESS) {
+    return TS_ERROR;
+  }
+  HttpSM *sm = (HttpSM *) txnp;
+  if (sm->set_server_session_private(private_session)) {
+    return TS_SUCCESS;
+  }
+  return TS_ERROR;
+}
+
+// APIs to register new Mgmt (records.config) entries.
+TSReturnCode
+TSMgmtStringCreate(TSRecordType rec_type, const char *name, const TSMgmtString data_default,
+                   TSRecordUpdateType update_type, TSRecordCheckType check_type,
+                   const char *check_regex, TSRecordAccessType access_type)
+{
+  if (check_regex == NULL && check_type != TS_RECORDCHECK_NULL)
+      return TS_ERROR;
+  if (REC_ERR_OKAY != RecRegisterConfigString((enum RecT)rec_type, name, data_default, (enum RecUpdateT)update_type,
+                                              (enum RecCheckT)check_type, check_regex, (enum RecAccessT)access_type))
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSMgmtIntCreate(TSRecordType rec_type, const char *name, TSMgmtInt data_default,
+                TSRecordUpdateType update_type, TSRecordCheckType check_type,
+                const char *check_regex, TSRecordAccessType access_type)
+{
+  if (check_regex == NULL && check_type != TS_RECORDCHECK_NULL)
+      return TS_ERROR;
+  if (REC_ERR_OKAY != RecRegisterConfigInt((enum RecT)rec_type, name, (RecInt)data_default, (enum RecUpdateT)update_type,
+                                           (enum RecCheckT)check_type, check_regex, (enum RecAccessT)access_type))
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+TSHttpTxnCloseAfterResponse (TSHttpTxn txnp, int should_close)
+{
+    if (sdk_sanity_check_txn(txnp)!=TS_SUCCESS) {
+           return TS_ERROR;
+    }
+
+    HttpSM *sm = (HttpSM*)txnp;
+    if (should_close) {
+        sm->t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE;
+        if (sm->ua_session) sm->set_ua_half_close_flag();
+    }
+    // Don't change if PIPELINE is set...
+    else if (sm->t_state.client_info.keep_alive == HTTP_NO_KEEPALIVE) {
+        sm->t_state.client_info.keep_alive = HTTP_KEEPALIVE;
+    }
+
+    return TS_SUCCESS;
+}
+
+// Parse a port descriptor for the proxy.config.http.server_ports descriptor format.
+TSPortDescriptor
+TSPortDescriptorParse(const char * descriptor)
+{
+  HttpProxyPort * port = new HttpProxyPort();
+
+  if (descriptor && port->processOptions(descriptor)) {
+    return (TSPortDescriptor)port;
+  }
+
+  delete port;
+  return NULL;
+}
+
+TSReturnCode
+TSPortDescriptorAccept(TSPortDescriptor descp, TSCont contp)
+{
+  Action * action = NULL;
+  HttpProxyPort * port = (HttpProxyPort *)descp;
+  NetProcessor::AcceptOptions net(make_net_accept_options(*port, 0 /* nthreads */));
+
+  if (port->isSSL()) {
+    action = sslNetProcessor.main_accept((INKContInternal *)contp, port->m_fd, net);
+  } else {
+    action = netProcessor.main_accept((INKContInternal *)contp, port->m_fd, net);
+  }
+
+  return action ? TS_SUCCESS : TS_ERROR;
+}
+
+TSReturnCode
+TSPluginDescriptorAccept(TSCont contp)
+{
+  Action * action = NULL;
+
+  HttpProxyPort::Group& proxy_ports = HttpProxyPort::global();
+  for ( int i = 0 , n = proxy_ports.length() ; i < n ; ++i ) {
+    HttpProxyPort& port = proxy_ports[i];
+    if (port.isPlugin()) {
+      NetProcessor::AcceptOptions net(make_net_accept_options(port, 0 /* nthreads */));
+      action = netProcessor.main_accept((INKContInternal *)contp, port.m_fd, net);
+    }
+  }
+  return action ? TS_SUCCESS : TS_ERROR;
+}
+
+
+int
+TSHttpTxnBackgroundFillStarted(TSHttpTxn txnp)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *s = (HttpSM*) txnp;
+
+  return (s->background_fill == BACKGROUND_FILL_STARTED);
+}
+
+int
+TSHttpTxnIsCacheable(TSHttpTxn txnp, TSMBuffer request, TSMBuffer response)
+{
+  sdk_assert(sdk_sanity_check_txn(txnp) == TS_SUCCESS);
+  HttpSM *sm = (HttpSM *) txnp;
+  HTTPHdr *req, *resp;
+
+  // We allow for either request or response to be empty (or both), in
+  // which case we default to the transactions request or response.
+  if (request) {
+    sdk_sanity_check_mbuffer(request);
+    req = reinterpret_cast<HTTPHdr*>(request);
+  } else {
+    req = &(sm->t_state.hdr_info.client_request);
+  }
+  if (response) {
+    sdk_sanity_check_mbuffer(response);
+    resp = reinterpret_cast<HTTPHdr*>(response);
+  } else {
+    resp = &(sm->t_state.hdr_info.server_response);
+  }
+
+  // Make sure these are valid response / requests, then verify if it's cacheable.
+  return (req->valid() && resp->valid() && HttpTransact::is_response_cacheable(&(sm->t_state), req, resp)) ? 1: 0;
+}
+
+
+// Lookup various debug names for common HTTP types.
+const char*
+TSHttpServerStateNameLookup(TSServerState state)
+{
+  return HttpDebugNames::get_server_state_name(static_cast<HttpTransact::ServerState_t>(state));
+}
+
+const char*
+TSHttpHookNameLookup(TSHttpHookID hook)
+{
+  return HttpDebugNames::get_api_hook_name(static_cast<TSHttpHookID>(hook));
+}
+
+const char*
+TSHttpEventNameLookup(TSEvent event)
+{
+  return HttpDebugNames::get_event_name(static_cast<int>(event));
+}
diff --git a/proxy/InkAPIInternal.h b/proxy/InkAPIInternal.h
new file mode 100644
index 00000000..2d7aaaff
--- /dev/null
+++ b/proxy/InkAPIInternal.h
@@ -0,0 +1,339 @@
+/** @file
+
+  Internal SDK stuff
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_API_INTERNAL_H__
+#define __INK_API_INTERNAL_H__
+
+#include "P_EventSystem.h"
+#include "URL.h"
+#include "StatSystem.h"
+#include "P_Net.h"
+#include "ts.h"
+#include "experimental.h"
+#include "InkAPIPrivateIOCore.h"
+#include "HTTP.h"
+#include "List.h"
+#include "ProxyConfig.h"
+#include "P_Cache.h"
+#include "I_Tasks.h"
+
+
+typedef enum
+  {
+    OVERRIDABLE_TYPE_NULL = 0,
+    OVERRIDABLE_TYPE_INT,
+    OVERRIDABLE_TYPE_FLOAT,
+    OVERRIDABLE_TYPE_STRING,
+    OVERRIDABLE_TYPE_BYTE
+  } OverridableDataType;
+typedef int8_t TSMgmtByte; // Not for external use
+
+/* ****** Cache Structure ********* */
+
+// For memory corruption detection
+enum CacheInfoMagic
+{
+  CACHE_INFO_MAGIC_ALIVE = 0xfeedbabe,
+  CACHE_INFO_MAGIC_DEAD = 0xdeadbeef
+};
+
+struct CacheInfo
+{
+  INK_MD5 cache_key;
+  CacheFragType frag_type;
+  char *hostname;
+  int len;
+  time_t pin_in_cache;
+  CacheInfoMagic magic;
+
+    CacheInfo()
+  {
+    frag_type = CACHE_FRAG_TYPE_NONE;
+    hostname = NULL;
+    len = 0;
+    pin_in_cache = 0;
+    magic = CACHE_INFO_MAGIC_ALIVE;
+  }
+};
+
+class FileImpl
+{
+  enum
+  {
+    CLOSED = 0,
+    READ = 1,
+    WRITE = 2
+  };
+
+public:
+    FileImpl();
+   ~FileImpl();
+
+  int fopen(const char *filename, const char *mode);
+  void fclose();
+  int fread(void *buf, int length);
+  int fwrite(const void *buf, int length);
+  int fflush();
+  char *fgets(char *buf, int length);
+
+public:
+  int m_fd;
+  int m_mode;
+  char *m_buf;
+  int m_bufsize;
+  int m_bufpos;
+};
+
+
+struct INKConfigImpl:public ConfigInfo
+{
+  void *mdata;
+  TSConfigDestroyFunc m_destroy_func;
+
+    virtual ~ INKConfigImpl()
+  {
+    m_destroy_func(mdata);
+  }
+};
+
+struct HttpAltInfo
+{
+  HTTPHdr m_client_req;
+  HTTPHdr m_cached_req;
+  HTTPHdr m_cached_resp;
+  float m_qvalue;
+};
+
+/// A single API hook that can be invoked.
+class APIHook
+{
+public:
+  INKContInternal * m_cont;
+  int invoke(int event, void *edata);
+  APIHook *next() const;
+  LINK(APIHook, m_link);
+};
+
+/// A collection of API hooks.
+class APIHooks
+{
+public:
+  void prepend(INKContInternal * cont);
+  void append(INKContInternal * cont);
+  APIHook *get();
+  void clear();
+  bool is_empty() const;
+  void invoke(int event, void* data);
+
+private:
+  Que(APIHook, m_link) m_hooks;
+};
+
+inline bool
+APIHooks::is_empty() const
+{
+  return NULL == m_hooks.head;
+}
+
+inline void
+APIHooks::invoke(int event, void* data) {
+  for ( APIHook* hook = m_hooks.head ; NULL != hook ; hook = hook->next())
+    hook->invoke(event, data);
+}
+
+/** Container for API hooks for a specific feature.
+
+    This is an array of hook lists, each identified by a numeric identifier (id). Each array element is a list of all
+    hooks for that ID. Adding a hook means adding to the list in the corresponding array element. There is no provision
+    for removing a hook.
+
+    @note The minimum value for a hook ID is zero. Therefore the template parameter @a N_ID should be one more than the
+    maximum hook ID so the valid ids are 0..(N-1) in the standard C array style.
+ */
+template <
+  typename ID, ///< Type of hook ID
+  ID N ///< Number of hooks
+>
+class FeatureAPIHooks
+{
+public:
+  FeatureAPIHooks(); ///< Constructor (empty container).
+  ~FeatureAPIHooks(); ///< Destructor.
+
+  /// Remove all hooks.
+  void clear();
+  /// Add the hook @a cont to the front of the hooks for @a id.
+  void prepend(ID id, INKContInternal * cont);
+  /// Add the hook @a cont to the end of the hooks for @a id.
+  void append(ID id, INKContInternal * cont);
+  /// Get the list of hooks for @a id.
+  APIHook *get(ID id);
+  /// @return @c true if @a id is a valid id, @c false otherwise.
+  static bool is_valid(ID id);
+
+  /// Invoke the callbacks for the hook @a id.
+  void invoke(ID id, int event, void* data);
+
+  /// Fast check for any hooks in this container.
+  ///
+  /// @return @c true if any list has at least one hook, @c false if
+  /// all lists have no hooks.
+  bool has_hooks() const;
+
+  /// Check for existence of hooks of a specific @a id.
+  /// @return @c true if any hooks of type @a id are present.
+  bool has_hooks_for(ID id) const;
+
+private:
+  bool hooks_p; ///< Flag for (not) empty container.
+  /// The array of hooks lists.
+  APIHooks m_hooks[N];
+};
+
+template < typename ID, ID N >
+FeatureAPIHooks<ID,N>::FeatureAPIHooks():
+hooks_p(false)
+{
+}
+
+template < typename ID, ID N >
+FeatureAPIHooks<ID,N>::~FeatureAPIHooks()
+{
+  this->clear();
+}
+
+template < typename ID, ID N >
+void
+FeatureAPIHooks<ID,N>::clear()
+{
+  for (int i = 0; i < N; ++i) {
+    m_hooks[i].clear();
+  }
+  hooks_p = false;
+}
+
+template < typename ID, ID N >
+void
+FeatureAPIHooks<ID,N>::prepend(ID id, INKContInternal *cont)
+{
+  hooks_p = true;
+  m_hooks[id].prepend(cont);
+}
+
+template < typename ID, ID N >
+void
+FeatureAPIHooks<ID,N>::append(ID id, INKContInternal *cont)
+{
+  hooks_p = true;
+  m_hooks[id].append(cont);
+}
+
+template < typename ID, ID N >
+APIHook *
+FeatureAPIHooks<ID,N>::get(ID id)
+{
+  return m_hooks[id].get();
+}
+
+template < typename ID, ID N >
+void
+FeatureAPIHooks<ID,N>::invoke(ID id, int event, void* data)
+{
+  m_hooks[id].invoke(event, data);
+}
+
+template < typename ID, ID N >
+bool
+FeatureAPIHooks<ID,N>::has_hooks() const
+{
+  return hooks_p;
+}
+
+template < typename ID, ID N >
+bool
+FeatureAPIHooks<ID,N>::is_valid(ID id)
+{
+  return 0 <= id && id < N;
+}
+
+class HttpAPIHooks : public FeatureAPIHooks<TSHttpHookID, TS_HTTP_LAST_HOOK>
+{
+};
+
+class LifecycleAPIHooks : public FeatureAPIHooks<TSLifecycleHookID, TS_LIFECYCLE_LAST_HOOK>
+{
+};
+
+
+class ConfigUpdateCallback:public Continuation
+{
+public:
+  ConfigUpdateCallback(INKContInternal * contp)
+    : Continuation(contp->mutex), m_cont(contp)
+  {
+    SET_HANDLER(&ConfigUpdateCallback::event_handler);
+  }
+
+  int event_handler(int, void *)
+  {
+    if (m_cont->mutex != NULL) {
+      MUTEX_TRY_LOCK(trylock, m_cont->mutex, this_ethread());
+      if (!trylock) {
+        eventProcessor.schedule_in(this, HRTIME_MSECONDS(10), ET_TASK);
+      } else {
+        m_cont->handleEvent(TS_EVENT_MGMT_UPDATE, NULL);
+        delete this;
+      }
+    } else {
+      m_cont->handleEvent(TS_EVENT_MGMT_UPDATE, NULL);
+      delete this;
+    }
+
+    return 0;
+  }
+
+private:
+  INKContInternal *m_cont;
+};
+
+class ConfigUpdateCbTable
+{
+public:
+  ConfigUpdateCbTable();
+  ~ConfigUpdateCbTable();
+
+  void insert(INKContInternal * contp, const char *name);
+  void invoke(const char *name);
+  void invoke(INKContInternal * contp);
+
+private:
+    InkHashTable * cb_table;
+};
+
+void api_init();
+
+extern HttpAPIHooks *http_global_hooks;
+extern LifecycleAPIHooks* lifecycle_hooks;
+extern ConfigUpdateCbTable *global_config_cbs;
+
+#endif /* __INK_API_INTERNAL_H__ */
diff --git a/proxy/InkAPITest.cc b/proxy/InkAPITest.cc
new file mode 100644
index 00000000..849ce785
--- /dev/null
+++ b/proxy/InkAPITest.cc
@@ -0,0 +1,7667 @@
+/** @file
+
+  Implements unit test for SDK APIs
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+// Turn off -Wdeprecated so that we can still test our own deprecated APIs.
+#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
+#pragma GCC diagnostic ignored "-Wdeprecated"
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
+#include "ink_config.h"
+#include <sys/types.h>
+
+#include <errno.h>
+//extern int errno;
+
+#include <pthread.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "Regression.h"
+#include "api/ts/ts.h"
+#include "api/ts/experimental.h"
+#include "I_RecCore.h"
+#include <sys/types.h>
+
+#include "InkAPITestTool.cc"
+#include "http/HttpSM.h"
+#include "ts/TestBox.h"
+
+#define TC_PASS 1
+#define TC_FAIL 0
+
+#define UTDBG_TAG "sdk_ut"
+
+/******************************************************************************/
+
+/* Use SDK_RPRINT to report failure or success for each test case */
+int
+SDK_RPRINT(RegressionTest * t, const char *api_name, const char *testcase_name, int status, const char *err_details_format, ...)
+{
+  int l;
+  char buffer[8192];
+  char format2[8192];
+  snprintf(format2, sizeof(format2), "[%s] %s : [%s] <<%s>> { %s }\n", t->name,
+           api_name, testcase_name, status == TC_PASS ? "PASS" : "FAIL", err_details_format);
+  va_list ap;
+  va_start(ap, err_details_format);
+  l = ink_bvsprintf(buffer, format2, ap);
+  va_end(ap);
+  fputs(buffer, stderr);
+  return (l);
+}
+
+
+/*
+  REGRESSION_TEST(SDK_<test_name>)(RegressionTest *t, int atype, int *pstatus)
+
+  RegressionTest *test is a pointer on object that will run the test.
+   Do not modify.
+
+  int atype is one of:
+   REGRESSION_TEST_NONE
+   REGRESSION_TEST_QUICK
+   REGRESSION_TEST_NIGHTLY
+   REGRESSION_TEST_EXTENDED
+
+  int *pstatus should be set to one of:
+   REGRESSION_TEST_PASSED
+   REGRESSION_TEST_INPROGRESS
+   REGRESSION_TEST_FAILED
+   REGRESSION_TEST_NOT_RUN
+  Note: pstatus is polled and can be used for asynchroneous tests.
+
+*/
+
+/* Misc */
+////////////////////////////////////////////////
+//       SDK_API_TSTrafficServerVersionGet
+//
+// Unit Test for API: TSTrafficServerVersionGet
+////////////////////////////////////////////////
+REGRESSION_TEST(SDK_API_TSTrafficServerVersionGet) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  /* Assume the UT runs on TS5.0 and higher */
+  const char *ts_version = TSTrafficServerVersionGet();
+  if (!ts_version) {
+    SDK_RPRINT(test, "TSTrafficServerVersionGet", "TestCase1", TC_FAIL, "can't get traffic server version");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  int major_ts_version = 0;
+  int minor_ts_version = 0;
+  int patch_ts_version = 0;
+  // coverity[secure_coding]
+  if (sscanf(ts_version, "%d.%d.%d", &major_ts_version, &minor_ts_version, &patch_ts_version) != 3) {
+    SDK_RPRINT(test, "TSTrafficServerVersionGet", "TestCase2", TC_FAIL, "traffic server version format is incorrect");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  if (major_ts_version < 2) {
+    SDK_RPRINT(test, "TSTrafficServerVersionGet", "TestCase3", TC_FAIL, "traffic server major version is incorrect");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  SDK_RPRINT(test, "TSTrafficServerVersionGet", "TestCase1", TC_PASS, "ok");
+  *pstatus = REGRESSION_TEST_PASSED;
+  return;
+}
+
+
+////////////////////////////////////////////////
+//       SDK_API_TSPluginDirGet
+//
+// Unit Test for API: TSPluginDirGet
+//                    TSInstallDirGet
+////////////////////////////////////////////////
+REGRESSION_TEST(SDK_API_TSPluginDirGet) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  const char *plugin_dir = TSPluginDirGet();
+  const char *install_dir = TSInstallDirGet();
+
+  if (!plugin_dir) {
+    SDK_RPRINT(test, "TSPluginDirGet", "TestCase1", TC_FAIL, "can't get plugin dir");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  if (!install_dir) {
+    SDK_RPRINT(test, "TSInstallDirGet", "TestCase1", TC_FAIL, "can't get installation dir");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  // Note: This doesn't have to be true
+  //      since the location can be anywhere
+  //      We only pass this test, with the default layout.
+  if (strstr(plugin_dir, "libexec/trafficserver") == NULL) {
+    SDK_RPRINT(test, "TSPluginDirGet", "TestCase2", TC_FAIL,
+               "plugin dir(%s) is incorrect, expected (%s) in path. Are you using the default layout?",
+               plugin_dir,"libexec/trafficserver");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  if (strstr(plugin_dir, install_dir) == NULL) {
+    SDK_RPRINT(test, "TSInstallDirGet", "TestCase2", TC_FAIL, "install dir is incorrect");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  SDK_RPRINT(test, "TSPluginDirGet", "TestCase1", TC_PASS, "ok");
+  SDK_RPRINT(test, "TSInstallDirGet", "TestCase1", TC_PASS, "ok");
+  *pstatus = REGRESSION_TEST_PASSED;
+  return;
+}
+
+
+/* TSConfig */
+////////////////////////////////////////////////
+//       SDK_API_TSConfig
+//
+// Unit Test for API: TSConfigSet
+//                    TSConfigGet
+//                    TSConfigRelease
+//                    TSConfigDataGet
+////////////////////////////////////////////////
+static int my_config_id = -1;
+typedef struct
+{
+  const char *a;
+  const char *b;
+} ConfigData;
+
+static void
+config_destroy_func(void *data)
+{
+  ConfigData *config = (ConfigData *) data;
+  TSfree(config);
+  return;
+}
+
+REGRESSION_TEST(SDK_API_TSConfig) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  ConfigData *config = (ConfigData *) TSmalloc(sizeof(ConfigData));
+  config->a = "unit";
+  config->b = "test";
+
+  my_config_id = TSConfigSet(0, config, config_destroy_func);
+
+  TSConfig test_config = NULL;
+  test_config = TSConfigGet(my_config_id);
+
+  if (!test_config) {
+    SDK_RPRINT(test, "TSConfigSet", "TestCase1", TC_FAIL, "can't correctly set global config structure");
+    SDK_RPRINT(test, "TSConfigGet", "TestCase1", TC_FAIL, "can't correctly get global config structure");
+    TSConfigRelease(my_config_id, reinterpret_cast<TSConfig>(config));
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  if (TSConfigDataGet(test_config) != config) {
+    SDK_RPRINT(test, "TSConfigDataGet", "TestCase1", TC_FAIL, "failed to get config data");
+    TSConfigRelease(my_config_id, reinterpret_cast<TSConfig>(config));
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  SDK_RPRINT(test, "TSConfigGet", "TestCase1", TC_PASS, "ok");
+  SDK_RPRINT(test, "TSConfigSet", "TestCase1", TC_PASS, "ok");
+  SDK_RPRINT(test, "TSConfigDataGet", "TestCase1", TC_PASS, "ok");
+
+  TSConfigRelease(my_config_id, reinterpret_cast<TSConfig>(config));
+  *pstatus = REGRESSION_TEST_PASSED;
+  return;
+}
+
+/* TSNetVConn */
+//////////////////////////////////////////////
+//       SDK_API_TSNetVConn
+//
+// Unit Test for API: TSNetVConnRemoteIPGet
+//                    TSNetVConnRemotePortGet
+//                    TSNetAccept
+//                    TSNetConnect
+//////////////////////////////////////////////
+
+struct SDK_NetVConn_Params
+{
+  SDK_NetVConn_Params(const char * _a, RegressionTest * _t, int * _p)
+      : buffer(NULL), api(_a), port(0), test(_t), pstatus(_p) {
+    this->status.client = this->status.server = REGRESSION_TEST_INPROGRESS;
+  }
+
+  ~SDK_NetVConn_Params() {
+    if (this->buffer) {
+      TSIOBufferDestroy(this->buffer);
+    }
+  }
+
+  TSIOBuffer        buffer;
+  const char *      api;
+  unsigned short    port;
+  RegressionTest *  test;
+  int *             pstatus;
+  struct {
+    int client;
+    int server;
+  } status;
+};
+
+int
+server_handler(TSCont contp, TSEvent event, void * data)
+{
+  SDK_NetVConn_Params * params = (SDK_NetVConn_Params *)TSContDataGet(contp);
+
+  if (event == TS_EVENT_NET_ACCEPT) {
+    // Kick off a read so that we can receive an EOS event.
+    SDK_RPRINT(params->test, params->api, "ServerEvent NET_ACCEPT", TC_PASS, "ok");
+    params->buffer = TSIOBufferCreate();
+    TSVConnRead((TSVConn)data, contp, params->buffer, 100);
+  } else if (event == TS_EVENT_VCONN_EOS) {
+    // The server end of the test passes if it receives an EOF event. This means that it must have
+    // connected to the endpoint. Since this always happens *after* the accept, we know that it is
+    // safe to delete the params.
+    TSContDestroy(contp);
+
+    SDK_RPRINT(params->test, params->api, "ServerEvent EOS", TC_PASS, "ok");
+    *params->pstatus = REGRESSION_TEST_PASSED;
+    delete params;
+  } else {
+    SDK_RPRINT(params->test, params->api, "ServerEvent", TC_FAIL, "received unexpected event %d", event);
+    *params->pstatus = REGRESSION_TEST_FAILED;
+    delete params;
+  }
+
+  return 1;
+}
+
+int
+client_handler(TSCont contp, TSEvent event, void *data)
+{
+  SDK_NetVConn_Params * params = (SDK_NetVConn_Params *)TSContDataGet(contp);
+
+  if (event == TS_EVENT_NET_CONNECT_FAILED) {
+    SDK_RPRINT(params->test, params->api, "ClientConnect", TC_FAIL, "can't connect to server");
+
+    *params->pstatus = REGRESSION_TEST_FAILED;
+
+    // no need to continue, return
+    // Fix me: how to deal with server side cont?
+    TSContDestroy(contp);
+    return 1;
+  } else {
+    sockaddr const* addr = TSNetVConnRemoteAddrGet(static_cast<TSVConn>(data));
+    uint16_t input_server_port = ats_ip_port_host_order(addr);
+
+    sleep(1); // XXX this sleep ensures the server end gets the accept event.
+
+    if (ats_is_ip_loopback(addr)) {
+      SDK_RPRINT(params->test, params->api, "TSNetVConnRemoteIPGet", TC_PASS, "ok");
+    } else {
+      ip_text_buffer s, ipb;
+      IpEndpoint loopback;
+      ats_ip4_set(&loopback, htonl(INADDR_LOOPBACK));
+      SDK_RPRINT(params->test, params->api, "TSNetVConnRemoteIPGet", TC_FAIL, "server ip [%s] is incorrect - expected [%s]",
+        ats_ip_ntop(addr, s, sizeof s),
+        ats_ip_ntop(&loopback.sa, ipb, sizeof ipb)
+      );
+
+      TSContDestroy(contp);
+      // Fix me: how to deal with server side cont?
+      *params->pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    if (input_server_port == params->port) {
+      SDK_RPRINT(params->test, params->api, "TSNetVConnRemotePortGet", TC_PASS, "ok");
+    } else {
+      SDK_RPRINT(params->test, params->api, "TSNetVConnRemotePortGet", TC_FAIL, "server port [%d] is incorrect -- expected [%d]", input_server_port, params->port);
+
+      TSContDestroy(contp);
+      // Fix me: how to deal with server side cont?
+      *params->pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    SDK_RPRINT(params->test, params->api, "TSNetConnect", TC_PASS, "ok");
+
+    // XXX We really ought to do a write/read exchange with the server. The sleep above works around this.
+
+    // Looks good from the client end. Next we disconnect so that the server end can set the final test status.
+    TSVConnClose((TSVConn) data);
+  }
+
+  TSContDestroy(contp);
+
+  return 1;
+}
+
+REGRESSION_TEST(SDK_API_TSNetVConn) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  SDK_NetVConn_Params * params = new SDK_NetVConn_Params("TSNetAccept", test, pstatus);
+
+  params->port = 12345;
+
+  TSCont server_cont = TSContCreate(server_handler, TSMutexCreate());
+  TSCont client_cont = TSContCreate(client_handler, TSMutexCreate());
+
+  TSContDataSet(server_cont, params);
+  TSContDataSet(client_cont, params);
+
+  TSNetAccept(server_cont, params->port, -1, 0);
+
+  IpEndpoint addr;
+  ats_ip4_set(&addr, htonl(INADDR_LOOPBACK), htons(params->port));
+  TSNetConnect(client_cont, &addr.sa);
+}
+
+REGRESSION_TEST(SDK_API_TSPortDescriptor) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSPortDescriptor port;
+  char desc[64];
+  SDK_NetVConn_Params * params = new SDK_NetVConn_Params("TSPortDescriptorAccept", test, pstatus);
+  TSCont server_cont = TSContCreate(server_handler, TSMutexCreate());
+  TSCont client_cont = TSContCreate(client_handler, TSMutexCreate());
+
+  params->port = 54321;
+
+  TSContDataSet(server_cont, params);
+  TSContDataSet(client_cont, params);
+
+  port = TSPortDescriptorParse(NULL);
+  if (port) {
+    SDK_RPRINT(test, "TSPortDescriptorParse", "NULL port descriptor", TC_FAIL,
+        "TSPortDescriptorParse(NULL) returned %s", port);
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  snprintf(desc, sizeof(desc), "%u", params->port);
+  port = TSPortDescriptorParse(desc);
+
+  if (TSPortDescriptorAccept(port, server_cont) == TS_ERROR) {
+    SDK_RPRINT(test, "TSPortDescriptorParse", "Basic port descriptor", TC_FAIL,
+        "TSPortDescriptorParse(%s) returned TS_ERROR", desc);
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  IpEndpoint addr;
+  ats_ip4_set(&addr, htonl(INADDR_LOOPBACK), htons(params->port));
+  TSNetConnect(client_cont, &addr.sa);
+}
+
+/* TSCache, TSVConn, TSVIO */
+//////////////////////////////////////////////
+//       SDK_API_TSCache
+//
+// Unit Test for API: TSCacheReady
+//                    TSCacheWrite
+//                    TSCacheRead
+//                    TSCacheKeyCreate
+//                    TSCacheKeyDigestSet
+//                    TSVConnCacheObjectSizeGet
+//                    TSVConnClose
+//                    TSVConnClosedGet
+//                    TSVConnRead
+//                    TSVConnReadVIOGet
+//                    TSVConnWrite
+//                    TSVConnWriteVIOGet
+//                    TSVIOBufferGet
+//                    TSVIOContGet
+//                    TSVIOMutexGet
+//                    TSVIONBytesGet
+//                    TSVIONBytesSet
+//                    TSVIONDoneGet
+//                    TSVIONDoneSet
+//                    TSVIONTodoGet
+//                    TSVIOReaderGet
+//                    TSVIOReenable
+//                    TSVIOVConnGet
+//////////////////////////////////////////////
+
+// TSVConnAbort can't be tested
+// Fix me: test TSVConnShutdown, TSCacheKeyDataTypeSet,
+//         TSCacheKeyHostNameSet, TSCacheKeyPinnedSet
+
+// Logic of the test:
+//  - write OBJECT_SIZE bytes in the cache in 3 shots
+//    (OBJECT_SIZE/2, then OBJECT_SIZE-100 and finally OBJECT_SIZE)
+//  - read object from the cache
+//  - remove it from the cache
+//  - try to read it (should faild)
+
+
+#define OBJECT_SIZE 100000      // size of the object we'll write/read/remove in cache
+
+
+RegressionTest *SDK_Cache_test;
+int *SDK_Cache_pstatus;
+static char content[OBJECT_SIZE];
+static int read_counter = 0;
+
+typedef struct
+{
+  TSIOBuffer bufp;
+  TSIOBuffer out_bufp;
+  TSIOBufferReader readerp;
+  TSIOBufferReader out_readerp;
+
+  TSVConn write_vconnp;
+  TSVConn read_vconnp;
+  TSVIO read_vio;
+  TSVIO write_vio;
+
+  TSCacheKey key;
+} CacheVConnStruct;
+
+int
+cache_handler(TSCont contp, TSEvent event, void *data)
+{
+  Debug("sdk_ut_cache_write", "Event %d data %p", event, data);
+
+  CacheVConnStruct *cache_vconn = (CacheVConnStruct *) TSContDataGet(contp);
+
+  TSIOBufferBlock blockp;
+  char *ptr_block;
+  int64_t ntodo, ndone, nbytes, towrite, avail, content_length;
+
+  switch (event) {
+  case TS_EVENT_CACHE_OPEN_WRITE:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_CACHE_OPEN_WRITE %d %p", event, data);
+    SDK_RPRINT(SDK_Cache_test, "TSCacheWrite", "TestCase1", TC_PASS, "ok");
+
+    // data is write_vc
+    cache_vconn->write_vconnp = (TSVConn) data;
+
+    // Create buffers/readers to write and read data into the cache
+    cache_vconn->bufp = TSIOBufferCreate();
+    cache_vconn->readerp = TSIOBufferReaderAlloc(cache_vconn->bufp);
+    cache_vconn->out_bufp = TSIOBufferCreate();
+    cache_vconn->out_readerp = TSIOBufferReaderAlloc(cache_vconn->out_bufp);
+
+    // Write content into upstream IOBuffer
+    ntodo = OBJECT_SIZE;
+    ndone = 0;
+    while (ntodo > 0) {
+      blockp = TSIOBufferStart(cache_vconn->bufp);
+      ptr_block = TSIOBufferBlockWriteStart(blockp, &avail);
+      towrite = ((ntodo < avail) ? ntodo : avail);
+      memcpy(ptr_block, content + ndone, towrite);
+      TSIOBufferProduce(cache_vconn->bufp, towrite);
+      ntodo -= towrite;
+      ndone += towrite;
+    }
+
+    // first write half of the data. To test TSVIOReenable
+    cache_vconn->write_vio = TSVConnWrite((TSVConn) data, contp, cache_vconn->readerp, OBJECT_SIZE / 2);
+    return 1;
+
+  case TS_EVENT_CACHE_OPEN_WRITE_FAILED:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_CACHE_OPEN_WRITE_FAILED %d %p", event, data);
+    SDK_RPRINT(SDK_Cache_test, "TSCacheWrite", "TestCase1", TC_FAIL, "can't open cache vc, edtata = %p", data);
+    TSReleaseAssert(!"cache");
+
+    // no need to continue, return
+    *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+    return 1;
+
+  case TS_EVENT_CACHE_OPEN_READ:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_CACHE_OPEN_READ %d %p", event, data);
+    if (read_counter == 2) {
+      SDK_RPRINT(SDK_Cache_test, "TSCacheRead", "TestCase2", TC_FAIL, "shouldn't open cache vc");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    SDK_RPRINT(SDK_Cache_test, "TSCacheRead", "TestCase1", TC_PASS, "ok");
+
+    cache_vconn->read_vconnp = (TSVConn) data;
+    content_length = TSVConnCacheObjectSizeGet(cache_vconn->read_vconnp);
+    Debug(UTDBG_TAG "_cache_read", "In cache open read [Content-Length: %" PRId64"]", content_length);
+    if (content_length != OBJECT_SIZE) {
+      SDK_RPRINT(SDK_Cache_test, "TSVConnCacheObjectSizeGet", "TestCase1", TC_FAIL, "cached data size is incorrect");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVConnCacheObjectSizeGet", "TestCase1", TC_PASS, "ok");
+      cache_vconn->read_vio = TSVConnRead((TSVConn) data, contp, cache_vconn->out_bufp, content_length);
+    }
+    return 1;
+
+  case TS_EVENT_CACHE_OPEN_READ_FAILED:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_CACHE_OPEN_READ_FAILED %d %p", event, data);
+    if (read_counter == 1) {
+      SDK_RPRINT(SDK_Cache_test, "TSCacheRead", "TestCase1", TC_FAIL, "can't open cache vc");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+    SDK_RPRINT(SDK_Cache_test, "TSCacheRead", "TestCase2", TC_PASS, "ok");
+
+    // ok, all tests passed!
+    break;
+
+  case TS_EVENT_CACHE_REMOVE:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_CACHE_REMOVE %d %p", event, data);
+    SDK_RPRINT(SDK_Cache_test, "TSCacheRemove", "TestCase1", TC_PASS, "ok");
+
+    // read the data which has been removed
+    read_counter++;
+    TSCacheRead(contp, cache_vconn->key);
+    return 1;
+
+  case TS_EVENT_CACHE_REMOVE_FAILED:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_CACHE_REMOVE_FAILED %d %p", event, data);
+    SDK_RPRINT(SDK_Cache_test, "TSCacheRemove", "TestCase1", TC_FAIL, "can't remove cached item");
+
+    // no need to continue, return
+    *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+    return 1;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_VCONN_WRITE_COMPLETE %d %p", event, data);
+
+    // VConn/VIO APIs
+    nbytes = TSVIONBytesGet(cache_vconn->write_vio);
+    ndone = TSVIONDoneGet(cache_vconn->write_vio);
+    ntodo = TSVIONTodoGet(cache_vconn->write_vio);
+    Debug(UTDBG_TAG "_cache_write", "Nbytes=%" PRId64" Ndone=%" PRId64" Ntodo=%" PRId64"", nbytes, ndone, ntodo);
+
+    if (ndone == (OBJECT_SIZE / 2)) {
+      TSVIONBytesSet(cache_vconn->write_vio, (OBJECT_SIZE - 100));
+      TSVIOReenable(cache_vconn->write_vio);
+      Debug(UTDBG_TAG "_cache_write", "Increment write_counter in write_complete [a]");
+      return 1;
+    } else if (ndone == (OBJECT_SIZE - 100)) {
+      TSVIONBytesSet(cache_vconn->write_vio, OBJECT_SIZE);
+      TSVIOReenable(cache_vconn->write_vio);
+      Debug(UTDBG_TAG "_cache_write", "Increment write_counter in write_complete [b]");
+      return 1;
+    } else if (ndone == OBJECT_SIZE) {
+      Debug(UTDBG_TAG "_cache_write", "finishing up [c]");
+
+      SDK_RPRINT(SDK_Cache_test, "TSVIOReenable", "TestCase2", TC_PASS, "ok");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONBytesSet", "TestCase1", TC_PASS, "ok");
+      SDK_RPRINT(SDK_Cache_test, "TSVConnWrite", "TestCase1", TC_PASS, "ok");
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSCacheWrite", "TestCase1", TC_FAIL, "Did not write expected # of bytes");
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    if ((TSVIO) data != cache_vconn->write_vio) {
+      SDK_RPRINT(SDK_Cache_test, "TSVConnWrite", "TestCase1", TC_FAIL, "write_vio corrupted");
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+    Debug(UTDBG_TAG "_cache_write", "finishing up [d]");
+
+
+    if (TSVIOBufferGet(cache_vconn->write_vio) != cache_vconn->bufp) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOBufferGet", "TestCase1", TC_FAIL, "write_vio corrupted");
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOBufferGet", "TestCase1", TC_PASS, "ok");
+    }
+
+    if (TSVIOContGet(cache_vconn->write_vio) != contp) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOContGet", "TestCase1", TC_FAIL, "write_vio corrupted");
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOContGet", "TestCase1", TC_PASS, "ok");
+    }
+
+    Debug(UTDBG_TAG "_cache_write", "finishing up [f]");
+
+    if (TSVIOMutexGet(cache_vconn->write_vio) != TSContMutexGet(contp)) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOMutexGet", "TestCase1", TC_FAIL, "write_vio corrupted");
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOMutexGet", "TestCase1", TC_PASS, "ok");
+    }
+
+    if (TSVIOVConnGet(cache_vconn->write_vio) != cache_vconn->write_vconnp) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOVConnGet", "TestCase1", TC_FAIL, "write_vio corrupted");
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOVConnGet", "TestCase1", TC_PASS, "ok");
+    }
+
+    Debug(UTDBG_TAG "_cache_write", "finishing up [g]");
+
+    if (TSVIOReaderGet(cache_vconn->write_vio) != cache_vconn->readerp) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOReaderGet", "TestCase1", TC_FAIL, "write_vio corrupted");
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIOReaderGet", "TestCase1", TC_PASS, "ok");
+    }
+
+    // tests for write is done, close write_vconnp
+    TSVConnClose(cache_vconn->write_vconnp);
+    cache_vconn->write_vconnp = NULL;
+
+    Debug(UTDBG_TAG "_cache_write", "finishing up [h]");
+
+
+    // start to read data out of cache
+    read_counter++;
+    TSCacheRead(contp, cache_vconn->key);
+    Debug(UTDBG_TAG "_cache_read", "starting read [i]");
+    return 1;
+
+
+  case TS_EVENT_VCONN_WRITE_READY:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_VCONN_WRITE_READY %d %p", event, data);
+    if ((TSVIO) data != cache_vconn->write_vio) {
+      SDK_RPRINT(SDK_Cache_test, "TSVConnWrite", "TestCase1", TC_FAIL, "write_vio corrupted");
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    nbytes = TSVIONBytesGet(cache_vconn->write_vio);
+    ndone = TSVIONDoneGet(cache_vconn->write_vio);
+    ntodo = TSVIONTodoGet(cache_vconn->write_vio);
+    Debug(UTDBG_TAG "_cache_write", "Nbytes=%" PRId64" Ndone=%" PRId64" Ntodo=%" PRId64"", nbytes, ndone, ntodo);
+
+    TSVIOReenable(cache_vconn->write_vio);
+    return 1;
+
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_VCONN_READ_COMPLETE %d %p", event, data);
+    if ((TSVIO) data != cache_vconn->read_vio) {
+      SDK_RPRINT(SDK_Cache_test, "TSVConnRead", "TestCase1", TC_FAIL, "read_vio corrupted");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    nbytes = TSVIONBytesGet(cache_vconn->read_vio);
+    ntodo = TSVIONTodoGet(cache_vconn->read_vio);
+    ndone = TSVIONDoneGet(cache_vconn->read_vio);
+    Debug(UTDBG_TAG "_cache_read", "Nbytes=%" PRId64" Ndone=%" PRId64" Ntodo=%" PRId64"", nbytes, ndone, ntodo);
+
+    if (nbytes != (ndone + ntodo)) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIONBytesGet", "TestCase1", TC_FAIL, "read_vio corrupted");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONTodoGet", "TestCase1", TC_FAIL, "read_vio corrupted");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONDoneGet", "TestCase1", TC_FAIL, "read_vio corrupted");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIONBytesGet", "TestCase1", TC_PASS, "ok");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONTodoGet", "TestCase1", TC_PASS, "ok");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONDoneGet", "TestCase1", TC_PASS, "ok");
+
+      TSVIONDoneSet(cache_vconn->read_vio, 0);
+      if (TSVIONDoneGet(cache_vconn->read_vio) != 0) {
+        SDK_RPRINT(SDK_Cache_test, "TSVIONDoneSet", "TestCase1", TC_FAIL, "fail to set");
+
+        // no need to continue, return
+        *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+        return 1;
+      } else
+        SDK_RPRINT(SDK_Cache_test, "TSVIONDoneSet", "TestCase1", TC_PASS, "ok");
+
+      Debug(UTDBG_TAG "_cache_write", "finishing up [i]");
+
+      // now waiting for 100ms to make sure the key is
+      // written in directory remove the content
+      TSContSchedule(contp, 100, TS_THREAD_POOL_DEFAULT);
+    }
+
+    return 1;
+
+  case TS_EVENT_VCONN_READ_READY:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_VCONN_READ_READY %d %p", event, data);
+    if ((TSVIO) data != cache_vconn->read_vio) {
+      SDK_RPRINT(SDK_Cache_test, "TSVConnRead", "TestCase1", TC_FAIL, "read_vio corrupted");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    }
+
+    nbytes = TSVIONBytesGet(cache_vconn->read_vio);
+    ntodo = TSVIONTodoGet(cache_vconn->read_vio);
+    ndone = TSVIONDoneGet(cache_vconn->read_vio);
+    Debug(UTDBG_TAG "_cache_read", "Nbytes=%" PRId64" Ndone=%" PRId64" Ntodo=%" PRId64"", nbytes, ndone, ntodo);
+
+    if (nbytes != (ndone + ntodo)) {
+      SDK_RPRINT(SDK_Cache_test, "TSVIONBytesGet", "TestCase1", TC_FAIL, "read_vio corrupted");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONTodoGet", "TestCase1", TC_FAIL, "read_vio corrupted");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONDoneGet", "TestCase1", TC_FAIL, "read_vio corrupted");
+
+      // no need to continue, return
+      *SDK_Cache_pstatus = REGRESSION_TEST_FAILED;
+      return 1;
+    } else {
+      SDK_RPRINT(SDK_Cache_test, "TSVIONBytesGet", "TestCase1", TC_PASS, "ok");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONTodoGet", "TestCase1", TC_PASS, "ok");
+      SDK_RPRINT(SDK_Cache_test, "TSVIONDoneGet", "TestCase1", TC_PASS, "ok");
+    }
+
+    // Fix for bug INKqa12276: Must consume data from iobuffer
+    nbytes = TSIOBufferReaderAvail(cache_vconn->out_readerp);
+    TSIOBufferReaderConsume(cache_vconn->out_readerp, nbytes);
+    TSDebug(UTDBG_TAG "_cache_read", "Consuming %" PRId64" bytes from cache read VC", nbytes);
+
+    TSVIOReenable(cache_vconn->read_vio);
+    Debug(UTDBG_TAG "_cache_read", "finishing up [j]");
+    return 1;
+
+  case TS_EVENT_TIMEOUT:
+    Debug(UTDBG_TAG "_cache_event", "TS_EVENT_TIMEOUT %d %p", event, data);
+    // do remove cached doc
+    TSCacheRemove(contp, cache_vconn->key);
+    return 1;
+
+  default:
+    TSReleaseAssert(!"Test SDK_API_TSCache: unexpected event");
+  }
+
+  Debug(UTDBG_TAG "_cache_event", "DONE DONE DONE");
+
+  // destroy the data structure
+  Debug(UTDBG_TAG "_cache_write", "all tests passed [z]");
+  TSIOBufferDestroy(cache_vconn->bufp);
+  TSIOBufferDestroy(cache_vconn->out_bufp);
+  TSCacheKeyDestroy(cache_vconn->key);
+  TSfree(cache_vconn);
+  *SDK_Cache_pstatus = REGRESSION_TEST_PASSED;
+
+  return 1;
+}
+
+REGRESSION_TEST(SDK_API_TSCache) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  SDK_Cache_test = test;
+  SDK_Cache_pstatus = pstatus;
+  int is_ready = 0;
+
+  // Check if Cache is ready
+  TSCacheReady(&is_ready);
+  if (!is_ready) {
+    SDK_RPRINT(test, "TSCacheReady", "TestCase1", TC_FAIL, "cache is not ready");
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  } else {
+    SDK_RPRINT(test, "TSCacheReady", "TestCase1", TC_PASS, "ok");
+  }
+
+  // Create CacheKey
+  char key_name[] = "key_for_regression_test";
+  TSCacheKey key = TSCacheKeyCreate();
+  TSCacheKey key_cmp = TSCacheKeyCreate();
+  SDK_RPRINT(test, "TSCacheKeyCreate", "TestCase1", TC_PASS, "ok");
+  TSCacheKeyDigestSet(key, key_name, strlen(key_name));
+  TSCacheKeyDigestSet(key_cmp, key_name, strlen(key_name));
+
+  // TODO: This comparison makes no sense, since TSCacheKey is an opaque struct
+#if 0
+  if (memcmp(key, key_cmp, sizeof(TSCacheKey)) != 0) {
+    SDK_RPRINT(test, "TSCacheKeySetDigest", "TestCase1", TC_FAIL, "digest is wrong");
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    TSCacheKeyDestroy(key);
+    TSCacheKeyDestroy(key_cmp);
+    return;
+  } else {
+    SDK_RPRINT(test, "TSCacheKeySetDigest", "TestCase1", TC_PASS, "ok");
+    TSCacheKeyDestroy(key_cmp);
+  }
+#endif
+
+  // prepare caching content
+  // string, null-terminated.
+  for (int i = 0; i < (OBJECT_SIZE - 1); i++) {
+    content[i] = 'a';
+  }
+  content[OBJECT_SIZE - 1] = '\0';
+
+  //Write data to cache.
+  TSCont contp = TSContCreate(cache_handler, TSMutexCreate());
+  CacheVConnStruct *cache_vconn = (CacheVConnStruct *) TSmalloc(sizeof(CacheVConnStruct));
+  cache_vconn->key = key;
+  TSContDataSet(contp, cache_vconn);
+
+  TSCacheWrite(contp, key);
+}
+
+/* TSfopen */
+
+//////////////////////////////////////////////
+//       SDK_API_TSfopen
+//
+// Unit Test for API: TSfopen
+//                    TSclose
+//                    TSfflush
+//                    TSfgets
+//                    TSfread
+//                    TSfwrite
+//////////////////////////////////////////////
+
+// Used to create tmp file
+//#define TMP_DIR "/var/tmp"
+#define	PFX	"plugin.config"
+
+REGRESSION_TEST(SDK_API_TSfopen) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  char write_file_name[PATH_NAME_MAX + 1];
+
+  TSFile source_read_file;     // existing file
+  TSFile write_file;           // to be created
+  TSFile cmp_read_file;        // read & compare
+
+  char input_buffer[BUFSIZ];
+  char cmp_buffer[BUFSIZ];
+  struct stat stat_buffer_pre, stat_buffer_post, stat_buffer_input;
+  char *ret_val;
+  int error_counter = 0, read = 0, wrote = 0;
+  int64_t read_amount = 0;
+  char INPUT_TEXT_FILE[] = "plugin.config";
+  char input_file_full_path[BUFSIZ];
+
+
+
+  // Set full path to file at run time.
+  // TODO: This can never fail since we are
+  //       returning the char[]
+  //       Better check the dir itself.
+  //
+  if (TSInstallDirGet() == NULL) {
+    error_counter++;
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+  // Add "etc/trafficserver" to point to config directory
+  ink_filepath_make(input_file_full_path, sizeof(input_file_full_path), TSConfigDirGet(), INPUT_TEXT_FILE);
+
+  // open existing file for reading
+  if (!(source_read_file = TSfopen(input_file_full_path, "r"))) {
+    SDK_RPRINT(test, "TSfopen", "TestCase1", TC_FAIL, "can't open file for reading");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  } else
+    SDK_RPRINT(test, "TSfopen", "TestCase1", TC_PASS, "ok");
+
+  // Create unique tmp _file_name_, do not use any TS file_name
+  snprintf(write_file_name, PATH_NAME_MAX, "/tmp/%sXXXXXX", PFX);
+  int write_file_fd;            // this file will be reopened below
+  if ((write_file_fd = mkstemp(write_file_name)) <= 0) {
+    SDK_RPRINT(test, "mkstemp", "std func", TC_FAIL, "can't create file for writing");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    return;
+  }
+  close(write_file_fd);
+
+  // open file for writing, the file doesn't have to exist.
+  if (!(write_file = TSfopen(write_file_name, "w"))) {
+    SDK_RPRINT(test, "TSfopen", "TestCase2", TC_FAIL, "can't open file for writing");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    return;
+  }
+  SDK_RPRINT(test, "TSfopen", "TestCase2", TC_PASS, "ok");
+
+  memset(input_buffer, '\0', BUFSIZ);
+
+  // source_read_file and input_file_full_path are the same file
+  if (stat(input_file_full_path, &stat_buffer_input) != 0) {
+    SDK_RPRINT(test, "stat", "std func", TC_FAIL, "source file and input file messed up");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  }
+
+  read_amount = (stat_buffer_input.st_size <= (off_t)sizeof(input_buffer)) ?
+    (stat_buffer_input.st_size) : (sizeof(input_buffer));
+
+  // TSfgets
+  if ((ret_val = TSfgets(source_read_file, input_buffer, read_amount))
+      == NULL) {
+    SDK_RPRINT(test, "TSfgets", "TestCase1", TC_FAIL, "can't read from file");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  } else {
+    if (ret_val != input_buffer) {
+      SDK_RPRINT(test, "TSfgets", "TestCase2", TC_FAIL, "reading error");
+      error_counter++;
+
+      // no need to continue, return
+      *pstatus = REGRESSION_TEST_FAILED;
+      if (source_read_file != NULL)
+        TSfclose(source_read_file);
+      if (write_file != NULL)
+        TSfclose(write_file);
+      return;
+    } else
+      SDK_RPRINT(test, "TSfgets", "TestCase1", TC_PASS, "ok");
+  }
+
+  // TSfwrite
+  wrote = TSfwrite(write_file, input_buffer, read_amount);
+  if (wrote != read_amount) {
+    SDK_RPRINT(test, "TSfwrite", "TestCase1", TC_FAIL, "writing error");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  }
+
+  SDK_RPRINT(test, "TSfwrite", "TestCase1", TC_PASS, "ok");
+
+  // TSfflush
+  if (stat(write_file_name, &stat_buffer_pre) != 0) {
+    SDK_RPRINT(test, "stat", "std func", TC_FAIL, "TSfwrite error");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  }
+
+  TSfflush(write_file);        // write_file should point to write_file_name
+
+  if (stat(write_file_name, &stat_buffer_post) != 0) {
+    SDK_RPRINT(test, "stat", "std func", TC_FAIL, "TSfflush error");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  }
+
+  if ((stat_buffer_pre.st_size == 0) && (stat_buffer_post.st_size == read_amount)) {
+    SDK_RPRINT(test, "TSfflush", "TestCase1", TC_PASS, "ok");
+  } else {
+    SDK_RPRINT(test, "TSfflush", "TestCase1", TC_FAIL, "TSfflush error");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  }
+
+  // TSfread
+  // open again for reading
+  cmp_read_file = TSfopen(write_file_name, "r");
+  if (cmp_read_file == NULL) {
+    SDK_RPRINT(test, "TSfopen", "TestCase3", TC_FAIL, "can't open file for reading");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    return;
+  }
+
+  read_amount = (stat_buffer_input.st_size <= (off_t)sizeof(cmp_buffer)) ? (stat_buffer_input.st_size) : (sizeof(cmp_buffer));
+
+  // TSfread on read file
+  read = TSfread(cmp_read_file, cmp_buffer, read_amount);
+  if (read != read_amount) {
+    SDK_RPRINT(test, "TSfread", "TestCase1", TC_FAIL, "can't reading");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    if (cmp_read_file != NULL)
+      TSfclose(cmp_read_file);
+    return;
+  } else
+    SDK_RPRINT(test, "TSfread", "TestCase1", TC_PASS, "ok");
+
+  // compare input_buffer and cmp_buffer buffers
+  if (memcmp(input_buffer, cmp_buffer, read_amount) != 0) {
+    SDK_RPRINT(test, "TSfread", "TestCase2", TC_FAIL, "reading error");
+    error_counter++;
+
+    // no need to continue, return
+    *pstatus = REGRESSION_TEST_FAILED;
+    if (source_read_file != NULL)
+      TSfclose(source_read_file);
+    if (write_file != NULL)
+      TSfclose(write_file);
+    if (cmp_read_file != NULL)
+      TSfclose(cmp_read_file);
+    return;
+  } else
+    SDK_RPRINT(test, "TSfread", "TestCase2", TC_PASS, "ok");
+
+  // remove the tmp file
+  if (unlink(write_file_name) != 0) {
+    SDK_RPRINT(test, "unlink", "std func", TC_FAIL, "can't remove temp file");
+  }
+  // TSfclose on read file
+  TSfclose(source_read_file);
+  SDK_RPRINT(test, "TSfclose", "TestCase1", TC_PASS, "ok");
+
+  // TSfclose on write file
+  TSfclose(write_file);
+  SDK_RPRINT(test, "TSfclose", "TestCase2", TC_PASS, "ok");
+
+  if (error_counter == 0) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+  if (cmp_read_file != NULL)
+    TSfclose(cmp_read_file);
+}
+
+/* TSThread */
+
+//////////////////////////////////////////////
+//       SDK_API_TSThread
+//
+// Unit Test for API: TSThread
+//                    TSThreadCreate
+//                    TSThreadSelf
+//////////////////////////////////////////////
+static int thread_err_count = 0;
+static RegressionTest *SDK_Thread_test;
+static int *SDK_Thread_pstatus;
+static void *thread_create_handler(void *arg);
+
+static void *
+thread_create_handler(void * /* arg ATS_UNUSED */)
+{
+  TSThread athread;
+  //Fix me: do more useful work
+  sleep(10);
+
+  athread = TSThreadSelf();
+  if (athread == 0) {
+    thread_err_count++;
+    SDK_RPRINT(SDK_Thread_test, "TSThreadCreate", "TestCase2", TC_FAIL, "can't get thread");
+  } else {
+    SDK_RPRINT(SDK_Thread_test, "TSThreadCreate", "TestCase2", TC_PASS, "ok");
+  }
+
+  if (thread_err_count > 0)
+    *SDK_Thread_pstatus = REGRESSION_TEST_FAILED;
+  else
+    *SDK_Thread_pstatus = REGRESSION_TEST_PASSED;
+
+  return NULL;
+}
+
+// Fix me: Solaris threads/Win2K threads tests
+
+// Argument data passed to thread init functions
+//  cannot be allocated on the stack.
+
+REGRESSION_TEST(SDK_API_TSThread) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  SDK_Thread_test = test;
+  SDK_Thread_pstatus = pstatus;
+
+  TSThread curr_thread = 0;
+//    TSThread created_thread = 0;
+  pthread_t curr_tid;
+
+  curr_tid = pthread_self();
+
+  // TSThreadSelf
+  curr_thread = TSThreadSelf();
+  if (curr_thread == 0) {
+    SDK_RPRINT(test, "TSThreadSelf", "TestCase1", TC_FAIL, "can't get the current thread");
+    thread_err_count++;
+  } else {
+    SDK_RPRINT(test, "TSThreadSelf", "TestCase1", TC_PASS, "ok");
+  }
+
+  // TSThreadCreate
+  TSThread created_thread = TSThreadCreate(thread_create_handler, (void *)(intptr_t)curr_tid);
+  if (created_thread == NULL) {
+    thread_err_count++;
+    SDK_RPRINT(test, "TSThreadCreate", "TestCase1", TC_FAIL, "can't create thread");
+  } else {
+    SDK_RPRINT(test, "TSThreadCreate", "TestCase1", TC_PASS, "ok");
+  }
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSThread
+//
+// Unit Test for API: TSThreadInit
+//                    TSThreadDestroy
+//////////////////////////////////////////////
+static int thread_init_err_count = 0;
+static RegressionTest *SDK_ThreadInit_test;
+static int *SDK_ThreadInit_pstatus;
+static void *pthread_start_func(void *arg);
+
+static void *
+pthread_start_func(void * /* arg ATS_UNUSED */)
+{
+  TSThread temp_thread = 0;
+
+  // TSThreadInit
+  temp_thread = TSThreadInit();
+
+  if (!temp_thread) {
+    SDK_RPRINT(SDK_ThreadInit_test, "TSThreadInit", "TestCase2", TC_FAIL, "can't init thread");
+    thread_init_err_count++;
+  } else
+    SDK_RPRINT(SDK_ThreadInit_test, "TSThreadInit", "TestCase2", TC_PASS, "ok");
+
+  // Clean up this thread
+  if (temp_thread)
+    TSThreadDestroy(temp_thread);
+
+  if (thread_init_err_count > 0)
+    *SDK_ThreadInit_pstatus = REGRESSION_TEST_FAILED;
+  else
+    *SDK_ThreadInit_pstatus = REGRESSION_TEST_PASSED;
+
+  return NULL;
+}
+
+REGRESSION_TEST(SDK_API_TSThreadInit) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  SDK_ThreadInit_test = test;
+  SDK_ThreadInit_pstatus = pstatus;
+
+  pthread_t curr_tid, new_tid;
+
+  curr_tid = pthread_self();
+
+  int ret;
+  errno = 0;
+  ret = pthread_create(&new_tid, NULL, pthread_start_func, (void *)(intptr_t)curr_tid);
+  if (ret != 0) {
+    thread_init_err_count++;
+    SDK_RPRINT(test, "TSThreadInit", "TestCase1", TC_FAIL, "can't create pthread");
+  } else
+    SDK_RPRINT(test, "TSThreadInit", "TestCase1", TC_PASS, "ok");
+
+}
+
+/* Action */
+
+//////////////////////////////////////////////
+//       SDK_API_TSAction
+//
+// Unit Test for API: TSActionCancel
+//////////////////////////////////////////////
+
+static RegressionTest *SDK_ActionCancel_test;
+static int *SDK_ActionCancel_pstatus;
+
+int
+action_cancel_handler(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  if (event == TS_EVENT_IMMEDIATE) {     // called from schedule_imm OK
+    SDK_RPRINT(SDK_ActionCancel_test, "TSActionCancel", "TestCase1", TC_PASS, "ok");
+    *SDK_ActionCancel_pstatus = REGRESSION_TEST_PASSED;
+  } else if (event == TS_EVENT_TIMEOUT) {       //called from schedule_in Not OK.
+    SDK_RPRINT(SDK_ActionCancel_test, "TSActionCancel", "TestCase1", TC_FAIL, "bad action");
+    *SDK_ActionCancel_pstatus = REGRESSION_TEST_FAILED;
+  } else {                        // there is sth wrong
+    SDK_RPRINT(SDK_ActionCancel_test, "TSActionCancel", "TestCase1", TC_FAIL, "bad event");
+    *SDK_ActionCancel_pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  TSContDestroy(contp);
+  return 0;
+}
+
+REGRESSION_TEST(SDK_API_TSActionCancel) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  SDK_ActionCancel_test = test;
+  SDK_ActionCancel_pstatus = pstatus;
+
+  TSMutex cont_mutex = TSMutexCreate();
+  TSCont contp = TSContCreate(action_cancel_handler, cont_mutex);
+  TSAction actionp = TSContSchedule(contp, 10000, TS_THREAD_POOL_DEFAULT);
+
+  TSMutexLock(cont_mutex);
+  if (TSActionDone(actionp)) {
+    *pstatus = REGRESSION_TEST_FAILED;
+    TSMutexUnlock(cont_mutex);
+    return;
+  } else {
+    TSActionCancel(actionp);
+  }
+  TSMutexUnlock(cont_mutex);
+
+  TSContSchedule(contp, 0, TS_THREAD_POOL_DEFAULT);
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSAction
+//
+// Unit Test for API: TSActionDone
+//////////////////////////////////////////////
+/* Currently, don't know how to test it because TSAction
+   is at "done" status only "shortly" after finish
+   executing action_done_handler. Another possibility is
+   to use reentrant call. But in both cases it's not
+   guaranteed to get ActionDone.
+   */
+
+/* Continuations */
+
+//////////////////////////////////////////////
+//       SDK_API_TSCont
+//
+// Unit Test for API: TSContCreate
+//                    TSContCall
+//////////////////////////////////////////////
+
+// this is needed for asynchronous APIs
+static RegressionTest *SDK_ContCreate_test;
+static int *SDK_ContCreate_pstatus;
+
+int
+cont_handler(TSCont /* contp ATS_UNUSED */, TSEvent /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  SDK_RPRINT(SDK_ContCreate_test, "TSContCreate", "TestCase1", TC_PASS, "ok");
+  SDK_RPRINT(SDK_ContCreate_test, "TSContCall", "TestCase1", TC_PASS, "ok");
+
+  *SDK_ContCreate_pstatus = REGRESSION_TEST_PASSED;
+
+  return 0;
+}
+
+
+REGRESSION_TEST(SDK_API_TSContCreate) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  // For asynchronous APIs, use static vars to store test and pstatus
+  SDK_ContCreate_test = test;
+  SDK_ContCreate_pstatus = pstatus;
+
+  TSMutex mutexp = TSMutexCreate();
+  TSCont contp = TSContCreate(cont_handler, mutexp);
+
+  if (TS_SUCCESS == TSMutexLockTry(mutexp)) { // Mutex is grabbed successfully
+    TSContCall(contp, (TSEvent) 0, NULL);
+    TSMutexUnlock(mutexp);
+  } else {                       //mutex has problems
+    SDK_RPRINT(SDK_ContCreate_test, "TSContCreate", "TestCase1", TC_FAIL, "continuation creation has problems");
+    SDK_RPRINT(SDK_ContCreate_test, "TSContCall", "TestCase1", TC_FAIL, "continuation has problems");
+
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  TSContDestroy(contp);
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSCont
+//
+// Unit Test for API: TSContDataGet
+//                    TSContDataSet
+//////////////////////////////////////////////
+
+// this is needed for asynchronous APIs
+static RegressionTest *SDK_ContData_test;
+static int *SDK_ContData_pstatus;
+
+// this is specific for this test
+typedef struct
+{
+  int data1;
+  int data2;
+} MyData;
+
+int
+cont_data_handler(TSCont contp, TSEvent /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  MyData *my_data = (MyData *) TSContDataGet(contp);
+
+  if (my_data->data1 == 1 && my_data->data2 == 2) {
+    SDK_RPRINT(SDK_ContData_test, "TSContDataSet", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(SDK_ContData_test, "TSContDataGet", "TestCase1", TC_PASS, "ok");
+
+    *SDK_ContData_pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    // If we get bad data, it's a failure
+    SDK_RPRINT(SDK_ContData_test, "TSContDataSet", "TestCase1", TC_FAIL, "bad data");
+    SDK_RPRINT(SDK_ContData_test, "TSContDataGet", "TestCase1", TC_FAIL, "bad data");
+
+    *SDK_ContData_pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  TSfree(my_data);
+  TSContDestroy(contp);
+  return 0;
+}
+
+
+REGRESSION_TEST(SDK_API_TSContDataGet) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  // For asynchronous APIs, use static vars to store test and pstatus
+  SDK_ContData_test = test;
+  SDK_ContData_pstatus = pstatus;
+
+  TSCont contp = TSContCreate(cont_data_handler, TSMutexCreate());
+
+  MyData *my_data = (MyData *) TSmalloc(sizeof(MyData));
+  my_data->data1 = 1;
+  my_data->data2 = 2;
+
+  TSContDataSet(contp, (void *) my_data);
+
+  TSContSchedule(contp, 0, TS_THREAD_POOL_DEFAULT);
+}
+
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSCont
+//
+// Unit Test for API: TSContMutexGet
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSContMutexGet) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSMutex mutexp_input;
+  TSMutex mutexp_output;
+  TSCont contp;
+
+  mutexp_input = TSMutexCreate();
+  contp = TSContCreate(cont_handler, mutexp_input);
+
+  mutexp_output = TSContMutexGet(contp);
+
+  if (mutexp_input == mutexp_output) {
+    SDK_RPRINT(test, "TSContMutexGet", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else
+    SDK_RPRINT(test, "TSContMutexGet", "TestCase1", TC_FAIL, "Continutation's mutex corrupted");
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+
+  TSContDestroy(contp);
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSCont
+//
+// Unit Test for API: TSContSchedule
+//////////////////////////////////////////////
+
+// this is needed for asynchronous APIs
+static RegressionTest *SDK_ContSchedule_test;
+static int *SDK_ContSchedule_pstatus;
+
+// this is specific for this test
+static int tc1_count = 0;
+static int tc2_count = 0;
+
+int
+cont_schedule_handler(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  if (event == TS_EVENT_IMMEDIATE) {
+    // Test Case 1
+    SDK_RPRINT(SDK_ContSchedule_test, "TSContSchedule", "TestCase1", TC_PASS, "ok");
+    tc1_count++;
+  } else if (event == TS_EVENT_TIMEOUT) {
+    // Test Case 2
+    SDK_RPRINT(SDK_ContSchedule_test, "TSContSchedule", "TestCase2", TC_PASS, "ok");
+    tc2_count++;
+  } else {
+    // If we receive a bad event, it's a failure
+    SDK_RPRINT(SDK_ContSchedule_test, "TSContSchedule", "TestCase1|2", TC_FAIL, "received unexpected event number %d", event);
+    *SDK_ContSchedule_pstatus = REGRESSION_TEST_FAILED;
+    return 0;
+  }
+
+  // We expect to be called once for TC1 and once for TC2
+  if ((tc1_count == 1) && (tc2_count == 1)) {
+    *SDK_ContSchedule_pstatus = REGRESSION_TEST_PASSED;
+  }
+  // If TC1 or TC2 executed more than once, something is fishy..
+  else if (tc1_count + tc2_count >= 2) {
+    *SDK_ContSchedule_pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  TSContDestroy(contp);
+  return 0;
+}
+
+/* Mutex */
+
+/*
+   Fix me: test for grabbing the mutex from two
+   different threads.
+   */
+
+//////////////////////////////////////////////
+//       SDK_API_TSMutex
+//
+// Unit Test for API: TSMutexCreate
+//                    TSMutexLock
+//                    TSMutexUnLock
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSMutexCreate) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSMutex mutexp = TSMutexCreate();
+
+  TSMutexLock(mutexp);
+
+  /* This is normal because all locking is from the same thread */
+  TSReturnCode lock = TS_ERROR;
+
+  lock = TSMutexLockTry(mutexp);
+  lock = TSMutexLockTry(mutexp);
+
+  if (TS_SUCCESS == lock) {
+    SDK_RPRINT(test, "TSMutexCreate", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSMutexLock", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSMutexLockTry", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSMutexCreate", "TestCase1", TC_FAIL, "mutex can't be grabbed twice from the same thread");
+    SDK_RPRINT(test, "TSMutexLock", "TestCase1", TC_FAIL, "mutex can't be grabbed twice from the same thread");
+    SDK_RPRINT(test, "TSMutexLockTry", "TestCase1", TC_FAIL, "mutex can't be grabbed twice from the same thread");
+
+  }
+
+  TSMutexUnlock(mutexp);
+  SDK_RPRINT(test, "TSMutexUnLock", "TestCase1", TC_PASS, "ok");
+
+  if (test_passed) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+}
+
+/* IOBuffer */
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferCreate
+//                    TSIOBufferWaterMarkGet
+//                    TSIOBufferWaterMarkSet
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferCreate) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  int64_t watermark = 1000;
+
+  TSIOBuffer bufp = TSIOBufferCreate();
+
+  TSIOBufferWaterMarkSet(bufp, watermark);
+  watermark = TSIOBufferWaterMarkGet(bufp);
+
+  if (watermark == 1000) {
+    SDK_RPRINT(test, "TSIOBufferCreate", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferWaterMarkGet", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferWaterMarkSet", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferCreate", "TestCase1", TC_FAIL, "watermark failed");
+    SDK_RPRINT(test, "TSIOBufferWaterMarkGet", "TestCase1", TC_FAIL, "watermark failed");
+    SDK_RPRINT(test, "TSIOBufferWaterMarkSet", "TestCase1", TC_FAIL, "watermark failed");
+  }
+
+  TSIOBufferDestroy(bufp);
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+  return;
+
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferSizedCreate
+//                    TSIOBufferProduce
+//                    TSIOBufferReaderAlloc
+//                    TSIOBufferReaderAvail
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferProduce) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSIOBuffer bufp = TSIOBufferSizedCreate(TS_IOBUFFER_SIZE_INDEX_4K);        //size is 4096
+
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+
+  TSIOBufferProduce(bufp, 10);
+
+  int64_t reader_avail = TSIOBufferReaderAvail(readerp);
+  if (reader_avail == 10) {
+    SDK_RPRINT(test, "TSIOBufferProduce", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferReaderAlloc", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferReaderAvail", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferProduce", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferReaderAlloc", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferReaderAvail", "TestCase1", TC_FAIL, "failed");
+  }
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+  return;
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferReaderConsume
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferReaderConsume) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSIOBuffer bufp = TSIOBufferSizedCreate(TS_IOBUFFER_SIZE_INDEX_4K);
+
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+
+  TSIOBufferProduce(bufp, 10);
+  TSIOBufferReaderConsume(readerp, 10);
+
+  int64_t reader_avail = TSIOBufferReaderAvail(readerp);
+  if (reader_avail == 0) {
+    SDK_RPRINT(test, "TSIOBufferReaderConsume", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferReaderConsume", "TestCase1", TC_FAIL, "failed");
+  }
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+  return;
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferReaderClone
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferReaderClone) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSIOBuffer bufp = TSIOBufferSizedCreate(TS_IOBUFFER_SIZE_INDEX_4K);
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+
+  TSIOBufferProduce(bufp, 10);
+  TSIOBufferReaderConsume(readerp, 5);
+
+  TSIOBufferReader readerp2 = TSIOBufferReaderClone(readerp);
+
+  int64_t reader_avail = TSIOBufferReaderAvail(readerp2);
+  if (reader_avail == 5) {
+    SDK_RPRINT(test, "TSIOBufferReaderClone", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferReaderClone", "TestCase1", TC_FAIL, "failed");
+  }
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+  return;
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferStart
+//                    TSIOBufferReaderStart
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferStart) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSIOBuffer bufp = TSIOBufferSizedCreate(TS_IOBUFFER_SIZE_INDEX_4K);
+
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+
+  if (TSIOBufferStart(bufp) == TSIOBufferReaderStart(readerp)) {
+    SDK_RPRINT(test, "TSIOBufferStart", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferReaderStart", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferStart", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferReaderStart", "TestCase1", TC_FAIL, "failed");
+  }
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+  return;
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferCopy
+//                    TSIOBufferWrite
+//                    TSIOBufferReaderCopy
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferCopy) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  char input_buf[] = "This is the test for TSIOBufferCopy, TSIOBufferWrite, TSIOBufferReaderCopy";
+  char output_buf[1024];
+  TSIOBuffer bufp = TSIOBufferSizedCreate(TS_IOBUFFER_SIZE_INDEX_4K);
+  TSIOBuffer bufp2 = TSIOBufferSizedCreate(TS_IOBUFFER_SIZE_INDEX_4K);
+
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+  TSIOBufferWrite(bufp, input_buf, (strlen(input_buf) + 1));
+  TSIOBufferCopy(bufp2, readerp, (strlen(input_buf) + 1), 0);
+  TSIOBufferReaderCopy(readerp, output_buf, (strlen(input_buf) + 1));
+
+  if (strcmp(input_buf, output_buf) == 0) {
+    SDK_RPRINT(test, "TSIOBufferWrite", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferCopy", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferReaderCopy", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferWrite", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferCopy", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferReaderCopy", "TestCase1", TC_FAIL, "failed");
+  }
+
+  // Status of the whole test
+  *pstatus = ((test_passed == true) ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+  return;
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBuffer
+//                    TSIOBufferWrite
+//                    TSIOBufferReaderCopy
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferBlockReadAvail) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed_1 = false;
+  bool test_passed_2 = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  int i = 10000;
+  TSIOBuffer bufp = TSIOBufferCreate();
+  TSIOBufferWrite(bufp, (char*)&i, sizeof(int));
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+
+  int64_t avail_write, avail_read;
+
+  // TODO: This is probably not correct any more.
+  TSIOBufferBlock blockp = TSIOBufferStart(bufp);
+
+  if ((TSIOBufferBlockWriteStart(blockp, &avail_write) - TSIOBufferBlockReadStart(blockp, readerp, &avail_read)) ==
+      sizeof(int)) {
+    SDK_RPRINT(test, "TSIOBufferBlockReadStart", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferBlockWriteStart", "TestCase1", TC_PASS, "ok");
+    test_passed_1 = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferBlockReadStart", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferBlockWriteStart", "TestCase1", TC_FAIL, "failed");
+  }
+
+  if ((TSIOBufferBlockReadAvail(blockp, readerp) + TSIOBufferBlockWriteAvail(blockp)) == 4096) {
+    SDK_RPRINT(test, "TSIOBufferBlockReadAvail", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSIOBufferBlockWriteAvail", "TestCase1", TC_PASS, "ok");
+    test_passed_2 = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferBlockReadAvail", "TestCase1", TC_FAIL, "failed");
+    SDK_RPRINT(test, "TSIOBufferBlockWriteAvail", "TestCase1", TC_FAIL, "failed");
+  }
+
+  if (test_passed_1 && test_passed_2) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  return;
+}
+
+//////////////////////////////////////////////////
+//       SDK_API_TSIOBuffer
+//
+// Unit Test for API: TSIOBufferBlockNext
+//////////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSIOBufferBlockNext) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool test_passed = false;
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  int i = 10000;
+  TSIOBuffer bufp = TSIOBufferCreate();
+  TSIOBufferWrite(bufp, (char*)&i, sizeof(int));
+
+  TSIOBufferReader readerp = TSIOBufferReaderAlloc(bufp);
+  TSIOBufferBlock blockp = TSIOBufferReaderStart(readerp);
+
+  // TODO: This is probaby not the best of regression tests right now ...
+  // Note that this assumes block size is > sizeof(int) bytes.
+  if (TSIOBufferBlockNext(blockp) == NULL) {
+    SDK_RPRINT(test, "TSIOBufferBlockNext", "TestCase1", TC_PASS, "ok");
+    test_passed = true;
+  } else {
+    SDK_RPRINT(test, "TSIOBufferBlockNext", "TestCase1", TC_FAIL, "fail");
+  }
+
+  if (test_passed) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  return;
+}
+
+
+REGRESSION_TEST(SDK_API_TSContSchedule) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  // For asynchronous APIs, use static vars to store test and pstatus
+  SDK_ContSchedule_test = test;
+  SDK_ContSchedule_pstatus = pstatus;
+
+  TSCont contp = TSContCreate(cont_schedule_handler, TSMutexCreate());
+  TSCont contp2 = TSContCreate(cont_schedule_handler, TSMutexCreate());
+
+  // Test Case 1: schedule immediate
+  TSContSchedule(contp, 0, TS_THREAD_POOL_DEFAULT);
+
+  // Test Case 2: schedule in 10ms
+  TSContSchedule(contp2, 10, TS_THREAD_POOL_DEFAULT);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//     SDK_API_HttpHookAdd
+//
+// Unit Test for API: TSHttpHookAdd
+//                    TSHttpTxnReenable
+//                    TSHttpTxnClientIPGet
+//                    TSHttpTxnServerIPGet
+//                    TSHttpTxnIncomingAddrGet
+//                    TSHttpTxnClientAddrGet
+//                    TSHttpTxnClientReqGet
+//                    TSHttpTxnClientRespGet
+//                    TSHttpTxnServerReqGet
+//                    TSHttpTxnServerRespGet
+//////////////////////////////////////////////////////////////////////////////
+
+#define HTTP_HOOK_TEST_REQUEST_ID  1
+
+typedef struct
+{
+  RegressionTest *regtest;
+  int *pstatus;
+  SocketServer *os;
+  ClientTxn *browser;
+  int hook_mask;
+  int reenable_mask;
+  bool test_client_ip_get;
+  bool test_client_incoming_port_get;
+  bool test_client_remote_port_get;
+  bool test_client_req_get;
+  bool test_client_resp_get;
+  bool test_server_ip_get;
+  bool test_server_req_get;
+  bool test_server_resp_get;
+  bool test_next_hop_ip_get;
+
+  unsigned int magic;
+} SocketTest;
+
+
+//This func is called by us from mytest_handler to test TSHttpTxnClientIPGet
+static int
+checkHttpTxnClientIPGet(SocketTest * test, void *data)
+{
+
+  sockaddr const* ptr;
+  in_addr_t ip;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+  in_addr_t actual_ip = htonl(INADDR_LOOPBACK);     /* 127.0.0.1 is expected because the client is on the same machine */
+
+  ptr = TSHttpTxnClientAddrGet(txnp);
+  if (ptr == 0 || INADDR_ANY == (ip = ats_ip4_addr_cast(ptr))) {
+    test->test_client_ip_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientIPGet", "TestCase1", TC_FAIL, "TSHttpTxnClientIPGet returns 0 %s", ptr ? "address" : "pointer");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if (ip == actual_ip) {
+    test->test_client_ip_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientIPGet", "TestCase1", TC_PASS, "ok [%0.8x]", ip);
+  } else {
+    test->test_client_ip_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientIPGet", "TestCase1", TC_FAIL, "Value's Mismatch [expected %.8x got %.8x]", actual_ip, ip);
+  }
+  return TS_EVENT_CONTINUE;
+
+}
+
+//This func is called by us from mytest_handler to check for TSHttpTxnNextHopIPGet
+static int
+checkHttpTxnNextHopIPGet(SocketTest * test, void *data)
+{
+  TSHttpTxn txnp = (TSHttpTxn) data;
+  in_addr_t actual_ip = htonl(INADDR_LOOPBACK);     /* 127.0.0.1 is expected because the client is on the same machine */
+  sockaddr const* ptr;
+  in_addr_t nexthopip;
+
+  ptr = TSHttpTxnNextHopAddrGet(txnp);
+  if (ptr == 0 || (nexthopip = ats_ip4_addr_cast(ptr)) == 0) {
+    test->test_next_hop_ip_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnNextHopIPGet", "TestCase1", TC_FAIL, "TSHttpTxnNextHopIPGet returns 0 %s", ptr ? "address" : "pointer" );
+    return TS_EVENT_CONTINUE;
+  }
+
+  if (nexthopip == actual_ip) {
+    test->test_next_hop_ip_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnNextHopIPGet", "TestCase1", TC_PASS, "ok");
+  } else {
+    test->test_next_hop_ip_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnNextHopIPGet", "TestCase1", TC_FAIL, "Value's Mismatch [expected %0.8x got %0.8x]", actual_ip, nexthopip);
+  }
+
+  return TS_EVENT_CONTINUE;
+}
+
+
+
+//This func is called by us from mytest_handler to test TSHttpTxnServerIPGet
+static int
+checkHttpTxnServerIPGet(SocketTest * test, void *data)
+{
+  sockaddr const* ptr;
+  in_addr_t ip;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+  in_addr_t actual_ip = htonl(INADDR_LOOPBACK);      /* 127.0.0.1 is expected because the client is on the same machine */
+
+  ptr = TSHttpTxnServerAddrGet(txnp);
+  if (0 == ptr || 0 == (ip = ats_ip4_addr_cast(ptr))) {
+    test->test_server_ip_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerIPGet", "TestCase1", TC_FAIL, "TSHttpTxnServerIPGet returns 0 %s", ptr ? "address" : "pointer");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if (ip == actual_ip) {
+    test->test_server_ip_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerIPGet", "TestCase1", TC_PASS, "ok");
+  } else {
+    test->test_server_ip_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerIPGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+  }
+
+
+  return TS_EVENT_CONTINUE;
+
+}
+
+//This func is called by us from mytest_handler to test TSHttpTxnIncomingAddrGet
+static int
+checkHttpTxnIncomingAddrGet(SocketTest * test, void *data)
+{
+  uint16_t port;
+  HttpProxyPort* proxy_port = HttpProxyPort::findHttp(AF_INET);
+  TSHttpTxn txnp = (TSHttpTxn) data;
+  sockaddr const* ptr = TSHttpTxnIncomingAddrGet(txnp);
+
+  if (0 == proxy_port) {
+    SDK_RPRINT(test->regtest, "TSHttpTxnIncomingPortGet", "TestCase1", TC_FAIL,
+               "TSHttpTxnIncomingAddrGet failed to find configured HTTP port.");
+    test->test_client_incoming_port_get = false;
+    return TS_EVENT_CONTINUE;
+  }
+  if (0 == ptr) {
+    SDK_RPRINT(test->regtest, "TSHttpTxnIncomingPortGet", "TestCase1", TC_FAIL,
+               "TSHttpTxnIncomingAddrGet returns 0 pointer");
+    test->test_client_incoming_port_get = false;
+    return TS_EVENT_CONTINUE;
+  }
+  port = ats_ip_port_host_order(ptr);
+
+  TSDebug(UTDBG_TAG, "TS HTTP port = %x, Txn incoming client port %x", proxy_port->m_port, port);
+
+  if (port == proxy_port->m_port) {
+    SDK_RPRINT(test->regtest, "TSHttpTxnIncomingAddrGet", "TestCase1", TC_PASS, "ok");
+    test->test_client_incoming_port_get = true;
+  } else {
+    SDK_RPRINT(test->regtest, "TSHttpTxnIncomingAddrGet", "TestCase1", TC_FAIL,
+               "Value's Mismatch. From Function: %d  Expected value: %d", port, proxy_port->m_port);
+    test->test_client_incoming_port_get = false;
+  }
+  return TS_EVENT_CONTINUE;
+}
+
+//This func is called by us from mytest_handler to test TSHttpTxnClientAddrGet
+static int
+checkHttpTxnClientAddrGet(SocketTest *test, void *data)
+{
+
+  uint16_t port;
+  uint16_t browser_port;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+  sockaddr const* ptr = TSHttpTxnClientAddrGet(txnp);
+
+  browser_port = test->browser->local_port;
+
+  if (0 == ptr) {
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientClientAddrGet", "TestCase2", TC_FAIL,
+               "TSHttpTxnClientAddrGet returned 0 pointer.");
+    test->test_client_remote_port_get = false;
+    return TS_EVENT_CONTINUE;
+  }
+
+  port = ats_ip_port_host_order(ptr);
+  TSDebug(UTDBG_TAG, "Browser port = %x, Txn remote port = %x", browser_port, port);
+
+  if (port == browser_port) {
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientAddrGet", "TestCase1", TC_PASS, "ok");
+    test->test_client_remote_port_get = true;
+  } else {
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientAddrGet", "TestCase1", TC_FAIL,
+               "Value's Mismatch. From Function: %d Expected Value: %d", port, browser_port);
+    test->test_client_remote_port_get = false;
+  }
+  return TS_EVENT_CONTINUE;
+}
+
+// This func is called by us from mytest_handler to test TSHttpTxnClientReqGet
+static int
+checkHttpTxnClientReqGet(SocketTest * test, void *data)
+{
+
+  TSMBuffer bufp;
+  TSMLoc mloc;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &mloc) != TS_SUCCESS) {
+    test->test_client_req_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientReqGet", "TestCase1", TC_FAIL, "Unable to get handle to client request");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if ((bufp == reinterpret_cast<TSMBuffer>(&((HttpSM *) txnp)->t_state.hdr_info.client_request)) &&
+      (mloc == reinterpret_cast<TSMLoc>(((HttpSM *)txnp)->t_state.hdr_info.client_request.m_http))) {
+    test->test_client_req_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientReqGet", "TestCase1", TC_PASS, "ok");
+  } else {
+    test->test_client_req_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientReqGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+  }
+
+  return TS_EVENT_CONTINUE;
+}
+
+// This func is called by us from mytest_handler to test TSHttpTxnClientRespGet
+static int
+checkHttpTxnClientRespGet(SocketTest * test, void *data)
+{
+
+  TSMBuffer bufp;
+  TSMLoc mloc;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+
+  if (TSHttpTxnClientRespGet(txnp, &bufp, &mloc) != TS_SUCCESS) {
+    test->test_client_resp_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientRespGet", "TestCase1", TC_FAIL, "Unable to get handle to client response");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if ((bufp == reinterpret_cast<TSMBuffer>(&((HttpSM *) txnp)->t_state.hdr_info.client_response)) &&
+      (mloc == reinterpret_cast<TSMLoc>(((HttpSM *) txnp)->t_state.hdr_info.client_response.m_http))) {
+    test->test_client_resp_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientRespGet", "TestCase1", TC_PASS, "ok");
+  } else {
+    test->test_client_resp_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnClientRespGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+  }
+
+  return TS_EVENT_CONTINUE;
+}
+
+// This func is called by us from mytest_handler to test TSHttpTxnServerReqGet
+static int
+checkHttpTxnServerReqGet(SocketTest * test, void *data)
+{
+
+  TSMBuffer bufp;
+  TSMLoc mloc;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+
+  if (TSHttpTxnServerReqGet(txnp, &bufp, &mloc) != TS_SUCCESS) {
+    test->test_server_req_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerReqGet", "TestCase1", TC_FAIL, "Unable to get handle to server request");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if ((bufp == reinterpret_cast<TSMBuffer>(&((HttpSM *) txnp)->t_state.hdr_info.server_request)) &&
+      (mloc == reinterpret_cast<TSMLoc>(((HttpSM *) txnp)->t_state.hdr_info.server_request.m_http))) {
+    test->test_server_req_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerReqGet", "TestCase1", TC_PASS, "ok");
+  } else {
+    test->test_server_req_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerReqGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+  }
+
+  return TS_EVENT_CONTINUE;
+}
+
+// This func is called by us from mytest_handler to test TSHttpTxnServerRespGet
+static int
+checkHttpTxnServerRespGet(SocketTest * test, void *data)
+{
+
+  TSMBuffer bufp;
+  TSMLoc mloc;
+  TSHttpTxn txnp = (TSHttpTxn) data;
+
+  if (TSHttpTxnServerRespGet(txnp, &bufp, &mloc) != TS_SUCCESS) {
+    test->test_server_resp_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerRespGet", "TestCase1", TC_FAIL, "Unable to get handle to server response");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if ((bufp == reinterpret_cast<TSMBuffer>(&((HttpSM *) txnp)->t_state.hdr_info.server_response)) &&
+      (mloc == reinterpret_cast<TSMLoc>(((HttpSM *) txnp)->t_state.hdr_info.server_response.m_http))) {
+    test->test_server_resp_get = true;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerRespGet", "TestCase1", TC_PASS, "ok");
+  } else {
+    test->test_server_resp_get = false;
+    SDK_RPRINT(test->regtest, "TSHttpTxnServerRespGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+  }
+
+  return TS_EVENT_CONTINUE;
+}
+
+
+// This func is called both by us when scheduling EVENT_IMMEDIATE
+// And by HTTP SM for registered hooks
+static int
+mytest_handler(TSCont contp, TSEvent event, void *data)
+{
+  SocketTest *test = (SocketTest *) TSContDataGet(contp);
+  if (test == NULL) {
+    if ((event == TS_EVENT_IMMEDIATE) || (event == TS_EVENT_TIMEOUT)) {
+      return 0;
+    }
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    return 0;
+  }
+  TSAssert(test->magic == MAGIC_ALIVE);
+  TSAssert(test->browser->magic == MAGIC_ALIVE);
+
+  switch (event) {
+  case TS_EVENT_HTTP_TXN_START:
+    if (test->hook_mask == 0) {
+      test->hook_mask |= 1;
+    }
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 1;
+    break;
+
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    if (test->hook_mask == 1) {
+      test->hook_mask |= 2;
+    }
+    TSSkipRemappingSet((TSHttpTxn) data,1);
+    checkHttpTxnClientReqGet(test, data);
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 2;
+    break;
+
+  case TS_EVENT_HTTP_OS_DNS:
+    if (test->hook_mask == 7) {
+      test->hook_mask |= 8;
+    }
+
+    checkHttpTxnIncomingAddrGet(test, data);
+    checkHttpTxnClientAddrGet(test, data);
+
+    checkHttpTxnClientIPGet(test, data);
+    checkHttpTxnServerIPGet(test, data);
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 8;
+    break;
+
+  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+    if (test->hook_mask == 3) {
+      test->hook_mask |= 4;
+    }
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 4;
+    break;
+
+  case TS_EVENT_HTTP_SEND_REQUEST_HDR:
+    if (test->hook_mask == 15) {
+      test->hook_mask |= 16;
+    }
+
+    checkHttpTxnServerReqGet(test, data);
+    checkHttpTxnNextHopIPGet(test, data);
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 16;
+    break;
+
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    if (test->hook_mask == 31) {
+      test->hook_mask |= 32;
+    }
+    checkHttpTxnServerRespGet(test, data);
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 32;
+    break;
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    if (test->hook_mask == 63) {
+      test->hook_mask |= 64;
+    }
+
+    checkHttpTxnClientRespGet(test, data);
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 64;
+    break;
+
+  case TS_EVENT_HTTP_TXN_CLOSE:
+    if (test->hook_mask == 127) {
+      test->hook_mask |= 128;
+    }
+
+    TSHttpTxnReenable((TSHttpTxn) data, TS_EVENT_HTTP_CONTINUE);
+    test->reenable_mask |= 128;
+    break;
+
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_TIMEOUT:
+    /* Browser still waiting the response ? */
+    if (test->browser->status == REQUEST_INPROGRESS) {
+      TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+    }
+    /* Browser got the response. test is over. clean up */
+    else {
+      /* Note: response is available using test->browser->response pointer */
+      if ((test->browser->status == REQUEST_SUCCESS) && (test->hook_mask == 255)) {
+        *(test->pstatus) = REGRESSION_TEST_PASSED;
+        SDK_RPRINT(test->regtest, "TSHttpHookAdd", "TestCase1", TC_PASS, "ok");
+
+      } else {
+        *(test->pstatus) = REGRESSION_TEST_FAILED;
+        SDK_RPRINT(test->regtest, "TSHttpHookAdd", "TestCase1", TC_FAIL,
+                   "Hooks not called or request failure. Hook mask = %d\n %s", test->hook_mask,test->browser->response);
+      }
+
+      if (test->reenable_mask == 255) {
+        SDK_RPRINT(test->regtest, "TSHttpTxnReenable", "TestCase1", TC_PASS, "ok");
+
+      } else {
+        *(test->pstatus) = REGRESSION_TEST_FAILED;
+        SDK_RPRINT(test->regtest, "TSHttpTxnReenable", "TestCase1", TC_FAIL, "Txn not re-enabled properly");
+
+      }
+
+      if ((test->test_client_ip_get != true) ||
+          (test->test_client_incoming_port_get != true) ||
+          (test->test_client_remote_port_get != true) ||
+          (test->test_client_req_get != true) ||
+          (test->test_client_resp_get != true) ||
+          (test->test_server_ip_get != true) ||
+          (test->test_server_req_get != true) ||
+          (test->test_server_resp_get != true) || (test->test_next_hop_ip_get != true)) {
+        *(test->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      // transaction is over. clean up.
+      synclient_txn_delete(test->browser);
+      synserver_delete(test->os);
+
+      test->magic = MAGIC_DEAD;
+      TSfree(test);
+      TSContDataSet(contp, NULL);
+    }
+    break;
+
+  default:
+    *(test->pstatus) = REGRESSION_TEST_FAILED;
+    SDK_RPRINT(test->regtest, "TSHttpHookAdd", "TestCase1", TC_FAIL, "Unexpected event %d", event);
+    break;
+  }
+
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_HttpHookAdd) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSCont cont = TSContCreate(mytest_handler, TSMutexCreate());
+  SocketTest *socktest = (SocketTest *) TSmalloc(sizeof(SocketTest));
+
+  socktest->regtest = test;
+  socktest->pstatus = pstatus;
+  socktest->hook_mask = 0;
+  socktest->reenable_mask = 0;
+  socktest->test_client_ip_get = false;
+  socktest->test_client_incoming_port_get = false;
+  socktest->test_client_req_get = false;
+  socktest->test_client_resp_get = false;
+  socktest->test_server_ip_get = false;
+  socktest->test_server_req_get = false;
+  socktest->test_server_resp_get = false;
+  socktest->test_next_hop_ip_get = false;
+  socktest->magic = MAGIC_ALIVE;
+  TSContDataSet(cont, socktest);
+
+  /* Register to HTTP hooks that are called in case of a cache MISS */
+  TSHttpHookAdd(TS_HTTP_TXN_START_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_OS_DNS_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_SEND_REQUEST_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_SEND_RESPONSE_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_TXN_CLOSE_HOOK, cont);
+
+  /* Create a new synthetic server */
+  socktest->os = synserver_create(SYNSERVER_LISTEN_PORT);
+  synserver_start(socktest->os);
+
+  /* Create a client transaction */
+  socktest->browser = synclient_txn_create();
+  char *request = generate_request(HTTP_HOOK_TEST_REQUEST_ID);  // this request has a no-cache that prevents caching
+  synclient_txn_send_request(socktest->browser, request);
+  TSfree(request);
+
+  /* Wait until transaction is done */
+  if (socktest->browser->status == REQUEST_INPROGRESS) {
+    TSContSchedule(cont, 25, TS_THREAD_POOL_DEFAULT);
+  }
+
+  return;
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSUrl
+//
+// Unit Test for API: TSUrlCreate
+//                    TSUrlSchemeGet
+//                    TSUrlSchemeSet
+//                    TSUrlUserGet
+//                    TSUrlUserSet
+//                    TSUrlPasswordGet
+//                    TSUrlPasswordSet
+//                    TSUrlHostGet
+//                    TSUrlHostSet
+//                    TSUrlPortGet
+//                    TSUrlPortSet
+//                    TSUrlPathGet
+//                    TSUrlPathSet
+//                    TSUrlHttpParamsGet
+//                    TSUrlHttpParamsSet
+//                    TSUrlHttpQueryGet
+//                    TSUrlHttpQuerySet
+//                    TSUrlHttpFragmentGet
+//                    TSUrlHttpFragmentSet
+//                    TSUrlCopy
+//                    TSUrlClone
+//                    TSUrlStringGet
+//                    TSUrlPrint
+//                    TSUrlLengthGet
+//                    TSUrlFtpTypeGet
+//                    TSUrlFtpTypeSet
+//////////////////////////////////////////////
+
+char *
+test_url_print(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  TSIOBuffer output_buffer;
+  TSIOBufferReader reader;
+  int64_t total_avail;
+
+  TSIOBufferBlock block;
+  const char *block_start;
+  int64_t block_avail;
+
+  char *output_string;
+  int output_len;
+
+  output_buffer = TSIOBufferCreate();
+
+  if (!output_buffer) {
+    TSError("couldn't allocate IOBuffer\n");
+  }
+
+  reader = TSIOBufferReaderAlloc(output_buffer);
+
+  /* This will print  just MIMEFields and not
+     the http request line */
+  TSUrlPrint(bufp, hdr_loc, output_buffer);
+
+  /* Find out how the big the complete header is by
+     seeing the total bytes in the buffer.  We need to
+     look at the buffer rather than the first block to
+     see the size of the entire header */
+  total_avail = TSIOBufferReaderAvail(reader);
+
+  /* Allocate the string with an extra byte for the string
+     terminator */
+  output_string = (char *) TSmalloc(total_avail + 1);
+  output_len = 0;
+
+  /* We need to loop over all the buffer blocks to make
+     sure we get the complete header since the header can
+     be in multiple blocks */
+  block = TSIOBufferReaderStart(reader);
+  while (block) {
+
+    block_start = TSIOBufferBlockReadStart(block, reader, &block_avail);
+
+    /* We'll get a block pointer back even if there is no data
+       left to read so check for this condition and break out of
+       the loop. A block with no data to read means we've exhausted
+       buffer of data since if there was more data on a later
+       block in the chain, this block would have been skipped over */
+    if (block_avail == 0) {
+      break;
+    }
+
+    memcpy(output_string + output_len, block_start, block_avail);
+    output_len += block_avail;
+
+    /* Consume the data so that we get to the next block */
+    TSIOBufferReaderConsume(reader, block_avail);
+
+    /* Get the next block now that we've consumed the
+       data off the last block */
+    block = TSIOBufferReaderStart(reader);
+  }
+
+  /* Terminate the string */
+  output_string[output_len] = '\0';
+  output_len++;
+
+  /* Free up the TSIOBuffer that we used to print out the header */
+  TSIOBufferReaderFree(reader);
+  TSIOBufferDestroy(output_buffer);
+
+  return output_string;
+}
+
+REGRESSION_TEST(SDK_API_TSUrl) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  TSMBuffer bufp1 = (TSMBuffer)NULL;
+  TSMBuffer bufp2 = (TSMBuffer)NULL;
+  TSMBuffer bufp3 = (TSMBuffer)NULL;
+  TSMLoc url_loc1;
+  TSMLoc url_loc2;
+  TSMLoc url_loc3;
+  const char *scheme = TS_URL_SCHEME_HTTP;
+  const char *scheme_get;
+  const char *user = "yyy";
+  const char *user_get;
+  const char *password = "xxx";
+  const char *password_get;
+  const char *host = "www.example.com";
+  const char *host_get;
+  int port = 2021;
+  char port_char[10];
+  int port_get = 80;
+  const char *path = "about/overview.html";
+  const char *path_get;
+  const char *params = "abcdef";
+  const char *params_get;
+  const char *query = "name=xxx";
+  const char *query_get;
+  const char *fragment = "yyy";
+  const char *fragment_get;
+  char *url_expected_string;
+  char *url_string_from_1 = (char *)NULL;
+  char *url_string_from_2 = (char *)NULL;
+  char *url_string_from_3 = (char *)NULL;
+  char *url_string_from_print = (char *)NULL;
+  int url_expected_length;
+  int url_length_from_1;
+  int url_length_from_2;
+  int type = 'a';
+  int type_get;
+  int tmp_len;
+
+  bool test_passed_create = false;
+  bool test_passed_scheme = false;
+  bool test_passed_user = false;
+  bool test_passed_password = false;
+  bool test_passed_host = false;
+  bool test_passed_port = false;
+  bool test_passed_path = false;
+  bool test_passed_params = false;
+  bool test_passed_query = false;
+  bool test_passed_fragment = false;
+  bool test_passed_copy = false;
+  bool test_passed_clone = false;
+  bool test_passed_string1 = false;
+  bool test_passed_string2 = false;
+  bool test_passed_print = false;
+  bool test_passed_length1 = false;
+  bool test_passed_length2 = false;
+  bool test_passed_type = false;
+
+  int length;
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  //Initialization
+  memset(port_char, 0, 10);
+  snprintf(port_char, sizeof(port_char), "%d", port);
+
+  // HTTP URL
+
+  url_expected_length = strlen(scheme) + strlen("://") +
+    ((user == NULL) ? 0 : strlen(user)) +
+    ((password == NULL) ? ((user == NULL) ? 0 : strlen("@")) : strlen(":") + strlen(password) + strlen("@")) +
+    strlen(host) +
+    ((port == 80) ? 0 : strlen(port_char) + strlen(":")) +
+    strlen("/") + strlen(path) +
+    ((params == NULL) ? 0 : strlen(";") + strlen(params)) +
+    ((query == NULL) ? 0 : strlen("?") + strlen(query)) + ((fragment == NULL) ? 0 : strlen("#") + strlen(fragment));
+
+  size_t len = url_expected_length + 1;
+  url_expected_string = (char *) TSmalloc(len * sizeof(char));
+  memset(url_expected_string, 0, url_expected_length + 1);
+  snprintf(url_expected_string, len, "%s://%s%s%s%s%s%s%s/%s%s%s%s%s%s%s",
+           scheme,
+           ((user == NULL) ? "" : user),
+           ((password == NULL) ? "" : ":"),
+           ((password == NULL) ? "" : password),
+           (((user == NULL) && (password == NULL)) ? "" : "@"),
+           host,
+           ((port == 80) ? "" : ":"),
+           ((port == 80) ? "" : port_char),
+           ((path == NULL) ? "" : path),
+           ((params == NULL) ? "" : ";"),
+           ((params == NULL) ? "" : params),
+           ((query == NULL) ? "" : "?"),
+           ((query == NULL) ? "" : query), ((fragment == NULL) ? "" : "#"), ((fragment == NULL) ? "" : fragment)
+    );
+
+
+  // Set Functions
+
+  bufp1 = TSMBufferCreate();
+  if (TSUrlCreate(bufp1, &url_loc1) != TS_SUCCESS) {
+    // Cannot proceed with tests.
+    SDK_RPRINT(test, "TSUrlCreate", "TestCase1", TC_FAIL, "unable to create URL within buffer.");
+    goto print_results;
+  }
+  //Scheme
+  if (TSUrlSchemeSet(bufp1, url_loc1, scheme, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlSchemeSet", "TestCase1", TC_FAIL, "TSUrlSchemeSet Returned TS_ERROR");
+  } else {
+    scheme_get = TSUrlSchemeGet(bufp1, url_loc1, &length);
+    if (strncmp(scheme_get, scheme, length) == 0) {
+      SDK_RPRINT(test, "TSUrlSchemeSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_scheme = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlSchemeSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //User
+  if (TSUrlUserSet(bufp1, url_loc1, user, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlUserSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    user_get = TSUrlUserGet(bufp1, url_loc1, &length);
+    if (((user_get == NULL) && (user == NULL)) || (strncmp(user_get, user, length) == 0)) {
+      SDK_RPRINT(test, "TSUrlUserSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_user = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlUserSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  // Password
+  if (TSUrlPasswordSet(bufp1, url_loc1, password, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlPasswordSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    password_get = TSUrlPasswordGet(bufp1, url_loc1, &length);
+    if (((password_get == NULL) && (password == NULL)) || (strncmp(password_get, password, length) == 0)) {
+      SDK_RPRINT(test, "TSUrlPasswordSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_password = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlPasswordSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Host
+  if (TSUrlHostSet(bufp1, url_loc1, host, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlHostSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    host_get = TSUrlHostGet(bufp1, url_loc1, &length);
+    if (strncmp(host_get, host, length) == 0) {
+      SDK_RPRINT(test, "TSUrlHostSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_host = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlHostSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Port
+  if (TSUrlPortSet(bufp1, url_loc1, port) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlPortSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    port_get = TSUrlPortGet(bufp1, url_loc1);
+    if (port_get == port) {
+      SDK_RPRINT(test, "TSUrlPortSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_port = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlPortSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Path
+  if (TSUrlPathSet(bufp1, url_loc1, path, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlPathSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    path_get = TSUrlPathGet(bufp1, url_loc1, &length);
+    if (((path == NULL) && (path_get == NULL)) || (strncmp(path, path_get, length) == 0)) {
+      SDK_RPRINT(test, "TSUrlPathSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_path = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlPathSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Params
+  if (TSUrlHttpParamsSet(bufp1, url_loc1, params, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlHttpParamsSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    params_get = TSUrlHttpParamsGet(bufp1, url_loc1, &length);
+    if (((params == NULL) && (params_get == NULL)) || (strncmp(params, params_get, length) == 0)) {
+      SDK_RPRINT(test, "TSUrlHttpParamsSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_params = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlHttpParamsSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Query
+  if (TSUrlHttpQuerySet(bufp1, url_loc1, query, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlHttpQuerySet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    query_get = TSUrlHttpQueryGet(bufp1, url_loc1, &length);
+    if (((query == NULL) && (query_get == NULL)) || (strncmp(query, query_get, length) == 0)) {
+      SDK_RPRINT(test, "TSUrlHttpQuerySet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_query = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlHttpQuerySet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Fragments
+  if (TSUrlHttpFragmentSet(bufp1, url_loc1, fragment, -1) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlHttpFragmentSet", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    fragment_get = TSUrlHttpFragmentGet(bufp1, url_loc1, &length);
+    if (((fragment == NULL) && (fragment_get == NULL)) || (strncmp(fragment, fragment_get, length) == 0)) {
+      SDK_RPRINT(test, "TSUrlHttpFragmentSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_fragment = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlHttpFragmentSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  //Length
+  url_length_from_1 = TSUrlLengthGet(bufp1, url_loc1);
+  if (url_length_from_1 == url_expected_length) {
+    SDK_RPRINT(test, "TSUrlLengthGet", "TestCase1", TC_PASS, "ok");
+    test_passed_length1 = true;
+  } else {
+    SDK_RPRINT(test, "TSUrlLengthGet", "TestCase1", TC_FAIL, "Values don't match");
+  }
+
+  //String
+  url_string_from_1 = TSUrlStringGet(bufp1, url_loc1, &tmp_len);
+  if (strcmp(url_string_from_1, url_expected_string) == 0) {
+    SDK_RPRINT(test, "TSUrlStringGet", "TestCase1", TC_PASS, "ok");
+    test_passed_string1 = true;
+  } else {
+    SDK_RPRINT(test, "TSUrlStringGet", "TestCase1", TC_FAIL, "Values don't match");
+  }
+
+  //Copy
+  bufp2 = TSMBufferCreate();
+  if (TSUrlCreate(bufp2, &url_loc2) != TS_SUCCESS) {
+    // Cannot proceed with tests.
+    SDK_RPRINT(test, "TSUrlCreate", "TestCase2", TC_FAIL, "unable to create URL within buffer for TSUrlCopy.");
+    goto print_results;
+  }
+  if (TSUrlCopy(bufp2, url_loc2, bufp1, url_loc1) == TS_ERROR) {
+    SDK_RPRINT(test, "TSUrlCopy", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    //Length Test Case 2
+    url_length_from_2 = TSUrlLengthGet(bufp2, url_loc2);
+    if (url_length_from_2 == url_expected_length) {
+      SDK_RPRINT(test, "TSUrlLengthGet", "TestCase2", TC_PASS, "ok");
+      test_passed_length2 = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlCopy", "TestCase1", TC_FAIL, "Values don't match");
+    }
+
+
+    //String Test Case 2
+    url_string_from_2 = TSUrlStringGet(bufp2, url_loc2, &tmp_len);
+    if (strcmp(url_string_from_2, url_expected_string) == 0) {
+      SDK_RPRINT(test, "TSUrlStringGet", "TestCase2", TC_PASS, "ok");
+      test_passed_string2 = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlStringGet", "TestCase2", TC_FAIL, "Values don't match");
+    }
+
+    // Copy Test Case
+    if (strcmp(url_string_from_1, url_string_from_2) == 0) {
+      SDK_RPRINT(test, "TSUrlCopy", "TestCase1", TC_PASS, "ok");
+      test_passed_copy = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlCopy", "TestCase1", TC_FAIL, "Values Don't Match");
+    }
+  }
+
+  //Clone
+  bufp3 = TSMBufferCreate();
+  if (TSUrlClone(bufp3, bufp1, url_loc1, &url_loc3) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlClone", "TestCase1", TC_FAIL, "Returned TS_ERROR");
+  } else {
+    //String Test Case 2
+    url_string_from_3 = TSUrlStringGet(bufp3, url_loc3, &tmp_len);
+    // Copy Test Case
+    if (strcmp(url_string_from_1, url_string_from_3) == 0) {
+      SDK_RPRINT(test, "TSUrlClone", "TestCase1", TC_PASS, "ok");
+      test_passed_clone = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlClone", "TestCase1", TC_FAIL, "Values Don't Match");
+    }
+  }
+
+  //UrlPrint
+  url_string_from_print = test_url_print(bufp1, url_loc1);
+  if (url_string_from_print == NULL) {
+    SDK_RPRINT(test, "TSUrlPrint", "TestCase1", TC_FAIL, "TSUrlPrint doesn't return TS_SUCCESS");
+  } else {
+    if (strcmp(url_string_from_print, url_expected_string) == 0) {
+      SDK_RPRINT(test, "TSUrlPrint", "TestCase1", TC_PASS, "ok");
+      test_passed_print = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlPrint", "TestCase1", TC_FAIL, "TSUrlPrint doesn't return TS_SUCCESS");
+    }
+    TSfree(url_string_from_print);
+  }
+
+  if (TSUrlFtpTypeSet(bufp1, url_loc1, type) != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSUrlFtpTypeSet", "TestCase1", TC_FAIL, "TSUrlFtpTypeSet Returned TS_ERROR");
+  } else {
+    type_get = TSUrlFtpTypeGet(bufp1, url_loc1);
+    if (type_get == type) {
+      SDK_RPRINT(test, "TSUrlFtpTypeSet&Get", "TestCase1", TC_PASS, "ok");
+      test_passed_type = true;
+    } else {
+      SDK_RPRINT(test, "TSUrlFtpTypeSet&Get", "TestCase1", TC_FAIL, "Values don't match");
+    }
+  }
+
+  SDK_RPRINT(test, "TSUrlCreate", "TestCase1&2", TC_PASS, "ok");
+  TSHandleMLocRelease(bufp1, TS_NULL_MLOC, url_loc1);
+  TSHandleMLocRelease(bufp2, TS_NULL_MLOC, url_loc2);
+  TSHandleMLocRelease(bufp3, TS_NULL_MLOC, url_loc3);
+  test_passed_create = true;
+
+print_results:
+  TSfree(url_expected_string);
+  if (url_string_from_1 != NULL) {
+    TSfree(url_string_from_1);
+  }
+  if (url_string_from_2 != NULL) {
+    TSfree(url_string_from_2);
+  }
+  if (url_string_from_3 != NULL) {
+    TSfree(url_string_from_3);
+  }
+  if (bufp1 != NULL) {
+    TSMBufferDestroy(bufp1);
+  }
+  if (bufp2 != NULL) {
+    TSMBufferDestroy(bufp2);
+  }
+  if (bufp3 != NULL) {
+    TSMBufferDestroy(bufp3);
+  }
+  if ((test_passed_create == false) ||
+      (test_passed_scheme == false) ||
+      (test_passed_user == false) ||
+      (test_passed_password == false) ||
+      (test_passed_host == false) ||
+      (test_passed_port == false) ||
+      (test_passed_path == false) ||
+      (test_passed_params == false) ||
+      (test_passed_query == false) ||
+      (test_passed_fragment == false) ||
+      (test_passed_copy == false) ||
+      (test_passed_clone == false) ||
+      (test_passed_string1 == false) ||
+      (test_passed_string2 == false) ||
+      (test_passed_print == false) ||
+      (test_passed_length1 == false) || (test_passed_length2 == false) || (test_passed_type == false)) {
+        /*** Debugging the test itself....
+	(test_passed_create == false)?printf("test_passed_create is false\n"):printf("");
+	(test_passed_destroy == false)?printf("test_passed_destroy is false\n"):printf("");
+	(test_passed_user == false)?printf("test_passed_user is false\n"):printf("");
+	(test_passed_password == false)?printf("test_passed_password is false\n"):printf("");
+	(test_passed_host == false)?printf("test_passed_host is false\n"):printf("");
+	(test_passed_port == false)?printf("test_passed_port is false\n"):printf("");
+	(test_passed_path == false)?printf("test_passed_path is false\n"):printf("");
+	(test_passed_params == false)?printf("test_passed_params is false\n"):printf("");
+	(test_passed_query == false)?printf("test_passed_query is false\n"):printf("");
+	(test_passed_fragment == false)?printf("test_passed_fragment is false\n"):printf("");
+	(test_passed_copy == false)?printf("test_passed_copy is false\n"):printf("");
+	(test_passed_string1 == false)?printf("test_passed_string1 is false\n"):printf("");
+	(test_passed_string2 == false)?printf("test_passed_string2 is false\n"):printf("");
+	(test_passed_length1 == false)?printf("test_passed_length1 is false\n"):printf("");
+	(test_passed_length2 == false)?printf("test_passed_length2 is false\n"):printf("");
+	(test_passed_type == false)?printf("test_passed_type is false\n"):printf("");
+	.....***********/
+    *pstatus = REGRESSION_TEST_FAILED;
+  } else {
+    *pstatus = REGRESSION_TEST_PASSED;
+  }
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSHttpHdr
+//
+// Unit Test for API: TSHttpHdrCreate
+//                    TSHttpHdrCopy
+//                    TSHttpHdrClone
+//                    TSHttpHdrDestroy
+//                    TSHttpHdrLengthGet
+//                    TSHttpHdrMethodGet
+//                    TSHttpHdrMethodSet
+//                    TSHttpHdrPrint
+//                    TSHttpHdrReasonGet
+//                    TSHttpHdrReasonLookup
+//                    TSHttpHdrReasonSet
+//                    TSHttpHdrStatusGet
+//                    TSHttpHdrStatusSet
+//                    TSHttpHdrTypeGet
+//                    TSHttpHdrUrlGet
+//                    TSHttpHdrUrlSet
+//////////////////////////////////////////////
+
+/**
+ * If you change value of any constant in this function then reflect that change in variable expected_iobuf.
+ */
+REGRESSION_TEST(SDK_API_TSHttpHdr) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  TSMBuffer bufp1 = (TSMBuffer)NULL;
+  TSMBuffer bufp2 = (TSMBuffer)NULL;
+  TSMBuffer bufp3 = (TSMBuffer)NULL;
+  TSMBuffer bufp4 = (TSMBuffer)NULL;
+
+  TSMLoc hdr_loc1 = (TSMLoc)NULL;
+  TSMLoc hdr_loc2 = (TSMLoc)NULL;
+  TSMLoc hdr_loc3 = (TSMLoc)NULL;
+  TSMLoc hdr_loc4 = (TSMLoc)NULL;
+
+  TSHttpType hdr1type;
+  TSHttpType hdr2type;
+
+  const char *methodGet;
+
+  TSMLoc url_loc;
+  TSMLoc url_loc_Get;
+  const char *url_host = "www.example.com";
+  int url_port = 2345;
+  const char *url_path = "abcd/efg/hij.htm";
+
+  const char *response_reason = "aefa";
+  const char *response_reason_get;
+
+  TSHttpStatus status_get;
+
+  int version_major = 2;
+  int version_minor = 1;
+  int version_get;
+
+  /* TSHttpType type1; unused: lv */
+  /* TSHttpType type2; unused: lv */
+  const char *method1;
+  const char *method2;
+  int length1;
+  int length2;
+  TSMLoc url_loc1;
+  TSMLoc url_loc2;
+  /* int version1; unused: lv */
+  /* int version2; unused: lv */
+
+  int length;
+  const char *expected_iobuf = "GET http://www.example.com:2345/abcd/efg/hij.htm HTTP/2.1\r\n\r\n";
+  int actual_length;
+  int expected_length;
+  bool test_passed_Http_Hdr_Create = false;
+  bool test_passed_Http_Hdr_Type = false;
+  bool test_passed_Http_Hdr_Method = false;
+  bool test_passed_Http_Hdr_Url = false;
+  bool test_passed_Http_Hdr_Status = false;
+  bool test_passed_Http_Hdr_Reason = false;
+  bool test_passed_Http_Hdr_Reason_Lookup = false;
+  bool test_passed_Http_Hdr_Version = false;
+  bool test_passed_Http_Hdr_Copy = false;
+  bool test_passed_Http_Hdr_Clone = false;
+  bool test_passed_Http_Hdr_Length = false;
+  bool test_passed_Http_Hdr_Print = false;
+  bool test_passed_Http_Hdr_Destroy = false;
+  bool try_print_function = true;
+  bool test_buffer_created = true;
+
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  bufp1 = TSMBufferCreate();
+  bufp2 = TSMBufferCreate();
+  bufp3 = TSMBufferCreate();
+  bufp4 = TSMBufferCreate();
+
+  // Create
+  if (test_buffer_created == true) {
+    hdr_loc1 = TSHttpHdrCreate(bufp1);
+    hdr_loc2 = TSHttpHdrCreate(bufp2);
+    hdr_loc3 = TSHttpHdrCreate(bufp3);
+    SDK_RPRINT(test, "TSHttpHdrCreate", "TestCase1&2&3", TC_PASS, "ok");
+    test_passed_Http_Hdr_Create = true;
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrCreate", "All Test Cases", TC_FAIL, "Cannot run test as unable to allocate MBuffers");
+  }
+
+
+  // Type
+  if (test_passed_Http_Hdr_Create == true) {
+    if ((TSHttpHdrTypeSet(bufp1, hdr_loc1, TS_HTTP_TYPE_REQUEST) == TS_ERROR) ||
+        (TSHttpHdrTypeSet(bufp2, hdr_loc2, TS_HTTP_TYPE_RESPONSE) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSHttpHdrTypeSet", "TestCase1|2", TC_FAIL, "TSHttpHdrTypeSet returns TS_ERROR");
+    } else {
+      hdr1type = TSHttpHdrTypeGet(bufp1, hdr_loc1);
+      hdr2type = TSHttpHdrTypeGet(bufp2, hdr_loc2);
+      if ((hdr1type == TS_HTTP_TYPE_REQUEST) && (hdr2type == TS_HTTP_TYPE_RESPONSE)) {
+        SDK_RPRINT(test, "TSHttpHdrTypeSet&Get", "TestCase1&2", TC_PASS, "ok");
+        test_passed_Http_Hdr_Type = true;
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrTypeSet&Get", "TestCase1&2", TC_FAIL, "Values mismatch");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrTypeSet&Get", "All Test Case", TC_FAIL, "Cannot run test as Header Creation Test failed");
+  }
+
+  // Method
+  if (test_passed_Http_Hdr_Type == true) {
+    if (TSHttpHdrMethodSet(bufp1, hdr_loc1, TS_HTTP_METHOD_GET, -1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrMethodSet&Get", "TestCase1", TC_FAIL, "TSHttpHdrMethodSet returns TS_ERROR");
+    } else {
+      methodGet = TSHttpHdrMethodGet(bufp1, hdr_loc1, &length);
+      if ((strncmp(methodGet, TS_HTTP_METHOD_GET, length) == 0) && (length == (int) strlen(TS_HTTP_METHOD_GET))) {
+        SDK_RPRINT(test, "TSHttpHdrMethodSet&Get", "TestCase1", TC_PASS, "ok");
+        test_passed_Http_Hdr_Method = true;
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrMethodSet&Get", "TestCase1", TC_FAIL, "Value's mismatch");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrMethodSet&Get", "All Test Case", TC_FAIL, "Cannot run test as Header's Type cannot be set");
+  }
+
+  // Url
+  if (test_passed_Http_Hdr_Type == true) {
+    if (TSUrlCreate(bufp1, &url_loc) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSHttpHdrUrlSet&Get", "TestCase1", TC_FAIL, "Cannot run test as TSUrlCreate returns TS_ERROR");
+    } else {
+      if (TSHttpHdrUrlSet(bufp1, hdr_loc1, url_loc) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHttpHdrUrlSet&Get", "TestCase1", TC_FAIL, "TSHttpHdrUrlSet returns TS_ERROR");
+      } else {
+        if (TSHttpHdrUrlGet(bufp1, hdr_loc1, &url_loc_Get) != TS_SUCCESS) {
+          SDK_RPRINT(test, "TSHttpHdrUrlSet&Get", "TestCase1", TC_FAIL, "TSHttpHdrUrlGet retuns TS_ERROR");
+        } else {
+          if (url_loc == url_loc_Get) {
+            SDK_RPRINT(test, "TSHttpHdrUrlSet&Get", "TestCase1", TC_PASS, "ok");
+            test_passed_Http_Hdr_Url = true;
+          } else {
+            SDK_RPRINT(test, "TSHttpHdrUrlSet&Get", "TestCase1", TC_FAIL, "Value's mismatch");
+          }
+          if (TSHandleMLocRelease(bufp1, hdr_loc1, url_loc_Get) == TS_ERROR) {
+            SDK_RPRINT(test, "TSHandleMLocRelease", "", TC_FAIL, "Unable to release handle to URL");
+          }
+        }
+      }
+
+      // Fill up the URL for Copy Test Case.
+      if (TSUrlSchemeSet(bufp1, url_loc, TS_URL_SCHEME_HTTP, -1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSUrlSchemeSet", "", TC_FAIL, "Unable to set scheme in URL in the HTTP Header");
+        try_print_function = false;
+      }
+      if (TSUrlHostSet(bufp1, url_loc, url_host, -1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSUrlHostSet", "", TC_FAIL, "Unable to set host in URL in the HTTP Header");
+        try_print_function = false;
+      }
+      if (TSUrlPortSet(bufp1, url_loc, url_port) == TS_ERROR) {
+        SDK_RPRINT(test, "TSUrlPortSet", "", TC_FAIL, "Unable to set port in URL in the HTTP Header");
+        try_print_function = false;
+      }
+      if (TSUrlPathSet(bufp1, url_loc, url_path, -1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSUrlPathSet", "", TC_FAIL, "Unable to set path in URL in the HTTP Header");
+        try_print_function = false;
+      }
+      if (TSHandleMLocRelease(bufp1, hdr_loc1, url_loc) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "", TC_FAIL, "Unable to release handle to URL");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrUrlSet&Get", "All Test Case", TC_FAIL, "Cannot run test as Header's Type cannot be set");
+  }
+
+  // Reason
+  if (test_passed_Http_Hdr_Type == true) {
+    if (TSHttpHdrReasonSet(bufp2, hdr_loc2, response_reason, -1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrReasonSet&Get", "TestCase1", TC_FAIL, "TSHttpHdrReasonSet returns TS_ERROR");
+    } else {
+      response_reason_get = TSHttpHdrReasonGet(bufp2, hdr_loc2, &length);
+      if ((strncmp(response_reason_get, response_reason, length) == 0) && (length == (int) strlen(response_reason))) {
+        SDK_RPRINT(test, "TSHttpHdrReasonSet&Get", "TestCase1", TC_PASS, "ok");
+        test_passed_Http_Hdr_Reason = true;
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrReasonSet&Get", "TestCase1", TC_FAIL, "Value's mismatch");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrReasonSet&Get", "All Test Case", TC_FAIL, "Cannot run test as Header's Type cannot be set");
+  }
+
+  // Status
+  if (test_passed_Http_Hdr_Type == true) {
+    if (TSHttpHdrStatusSet(bufp2, hdr_loc2, TS_HTTP_STATUS_OK) == TS_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrStatusSet&Get", "TestCase1", TC_FAIL, "TSHttpHdrStatusSet returns TS_ERROR");
+    } else {
+      status_get = TSHttpHdrStatusGet(bufp2, hdr_loc2);
+      if (status_get == TS_HTTP_STATUS_OK) {
+        SDK_RPRINT(test, "TSHttpHdrStatusSet&Get", "TestCase1", TC_PASS, "ok");
+        test_passed_Http_Hdr_Status = true;
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrStatusSet&Get", "TestCase1", TC_FAIL, "Value's mismatch");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrStatusSet&Get", "All Test Case", TC_FAIL, "Cannot run test as Header's Type cannot be set");
+  }
+
+  //Version
+  if (test_passed_Http_Hdr_Type == true) {
+    if (TSHttpHdrVersionSet(bufp1, hdr_loc1, TS_HTTP_VERSION(version_major, version_minor)) == TS_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "TestCase1", TC_FAIL, "TSHttpHdrVersionSet returns TS_ERROR");
+    } else {
+      version_get = TSHttpHdrVersionGet(bufp1, hdr_loc1);
+      if ((version_major == TS_HTTP_MAJOR(version_get)) && (version_minor == TS_HTTP_MINOR(version_get))) {
+        SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "TestCase1", TC_PASS, "ok");
+        test_passed_Http_Hdr_Version = true;
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "TestCase1", TC_FAIL, "Value's mismatch");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "All Test Case", TC_FAIL, "Cannot run test as Header's Type cannot be set");
+  }
+
+  if (test_passed_Http_Hdr_Version == true) {
+    if (TSHttpHdrVersionSet(bufp2, hdr_loc2, TS_HTTP_VERSION(version_major, version_minor)) == TS_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "TestCase2", TC_FAIL, "TSHttpHdrVersionSet returns TS_ERROR");
+      test_passed_Http_Hdr_Version = false;
+    } else {
+      version_get = TSHttpHdrVersionGet(bufp2, hdr_loc2);
+      if ((version_major == TS_HTTP_MAJOR(version_get)) && (version_minor == TS_HTTP_MINOR(version_get))) {
+        SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "TestCase2", TC_PASS, "ok");
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrVersionSet&Get", "TestCase2", TC_FAIL, "Value's mismatch");
+        test_passed_Http_Hdr_Version = false;
+      }
+    }
+  }
+  //Reason Lookup
+  if (strcmp("None", TSHttpHdrReasonLookup(TS_HTTP_STATUS_NONE)) != 0) {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase1", TC_FAIL,
+               "TSHttpHdrReasonLookup returns Value's mismatch");
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase1", TC_PASS, "ok");
+    test_passed_Http_Hdr_Reason_Lookup = true;
+  }
+
+  if (strcmp("OK", TSHttpHdrReasonLookup(TS_HTTP_STATUS_OK)) != 0) {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase2", TC_FAIL,
+               "TSHttpHdrReasonLookup returns Value's mismatch");
+    if (test_passed_Http_Hdr_Reason_Lookup == true) {
+      test_passed_Http_Hdr_Reason_Lookup = false;
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase2", TC_PASS, "ok");
+  }
+
+  if (strcmp("Continue", TSHttpHdrReasonLookup(TS_HTTP_STATUS_CONTINUE)) != 0) {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase3", TC_FAIL,
+               "TSHttpHdrReasonLookup returns Value's mismatch");
+    if (test_passed_Http_Hdr_Reason_Lookup == true) {
+      test_passed_Http_Hdr_Reason_Lookup = false;
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase3", TC_PASS, "ok");
+  }
+
+  if (strcmp("Not Modified", TSHttpHdrReasonLookup(TS_HTTP_STATUS_NOT_MODIFIED)) != 0) {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase2", TC_FAIL,
+               "TSHttpHdrReasonLookup returns Value's mismatch");
+    if (test_passed_Http_Hdr_Reason_Lookup == true) {
+      test_passed_Http_Hdr_Reason_Lookup = false;
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrReasonLookup", "TestCase4", TC_PASS, "ok");
+  }
+
+  // Copy
+  if (test_passed_Http_Hdr_Create == true) {
+    if (TSHttpHdrCopy(bufp3, hdr_loc3, bufp1, hdr_loc1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "TSHttpHdrCopy returns TS_ERROR");
+    } else {
+
+      bool flag = true;
+      // Check the type
+      if (flag == true) {
+        TSHttpType type1 = TSHttpHdrTypeGet(bufp1, hdr_loc1);
+        TSHttpType type2 = TSHttpHdrTypeGet(bufp3, hdr_loc3);
+
+        if (type1 != type2) {
+          SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Type mismatch in both headers");
+          flag = false;
+        }
+      }
+      // Check the Version
+      if (flag == true) {
+        int version1 = TSHttpHdrVersionGet(bufp1, hdr_loc1);
+        int version2 = TSHttpHdrVersionGet(bufp3, hdr_loc3);
+
+        if (version1 != version2) {
+          SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Version mismatch in both headers");
+          flag = false;
+        }
+      }
+      // Check the Method
+      if (flag == true) {
+        method1 = TSHttpHdrMethodGet(bufp1, hdr_loc1, &length1);
+        method2 = TSHttpHdrMethodGet(bufp3, hdr_loc3, &length2);
+        if ((length1 != length2) || (strncmp(method1, method2, length1) != 0)) {
+          SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Method mismatch in both headers");
+          flag = false;
+        }
+      }
+      // Check the URL
+      if (flag == true) {
+
+        if ((TSHttpHdrUrlGet(bufp1, hdr_loc1, &url_loc1) != TS_SUCCESS) ||
+            (TSHttpHdrUrlGet(bufp3, hdr_loc3, &url_loc2) != TS_SUCCESS)) {
+          SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "TSHttpVersionGet returns TS_ERROR");
+          flag = false;
+        } else {
+          const char *scheme1;
+          const char *scheme2;
+
+          const char *host1;
+          const char *host2;
+
+          int port1;
+          int port2;
+
+          const char *path1;
+          const char *path2;
+
+          // URL Scheme
+          scheme1 = TSUrlSchemeGet(bufp1, url_loc1, &length1);
+          scheme2 = TSUrlSchemeGet(bufp3, url_loc2, &length2);
+          if ((length1 != length2) || (strncmp(scheme1, scheme2, length1) != 0)) {
+            SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Scheme has different values in both headers");
+            flag = false;
+          }
+
+          // URL Host
+          if (flag == true) {
+            host1 = TSUrlHostGet(bufp1, url_loc1, &length1);
+            host2 = TSUrlHostGet(bufp3, url_loc2, &length2);
+            if ((length1 != length2) || (strncmp(host1, host2, length1) != 0)) {
+              SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Host has different values in both headers");
+              flag = false;
+            }
+          }
+          // URL Port
+          if (flag == true) {
+            port1 = TSUrlPortGet(bufp1, url_loc1);
+            port2 = TSUrlPortGet(bufp3, url_loc2);
+            if (port1 != port2) {
+              SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Port has different values in both headers");
+              flag = false;
+            }
+          }
+          // URL Path
+          if (flag == true) {
+            path1 = TSUrlPathGet(bufp1, url_loc1, &length1);
+            path2 = TSUrlPathGet(bufp3, url_loc2, &length2);
+            if ((path1 != NULL) && (path2 != NULL)) {
+              if ((length1 != length2) || (strncmp(path1, path2, length1) != 0)) {
+                SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Path has different values in both headers");
+                flag = false;
+              }
+            } else {
+              if (path1 != path2) {
+                SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Host has different values in both headers");
+                flag = false;
+              }
+            }
+            if ((TSHandleMLocRelease(bufp1, hdr_loc1, url_loc1) == TS_ERROR) ||
+                (TSHandleMLocRelease(bufp3, hdr_loc3, url_loc2) == TS_ERROR)) {
+              SDK_RPRINT(test, "TSHandleMLocRelease", "", TC_FAIL, "Unable to release Handle acquired by TSHttpHdrUrlGet");
+            }
+          }
+
+          if (flag == true) {
+            SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_PASS, "ok");
+            test_passed_Http_Hdr_Copy = true;
+          }
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrCopy", "All Test Cases", TC_PASS, "Cannot run test as TSHttpHdrCreate has failed");
+  }
+
+  // Clone
+  if (test_passed_Http_Hdr_Create == true) {
+    if (TSHttpHdrClone(bufp4, bufp1, hdr_loc1, &hdr_loc4) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "TSHttpHdrClone returns TS_ERROR");
+    } else {
+
+      bool flag = true;
+      // Check the type
+      if (flag == true) {
+        TSHttpType type1 = TSHttpHdrTypeGet(bufp1, hdr_loc1);
+        TSHttpType type2 = TSHttpHdrTypeGet(bufp4, hdr_loc4);
+
+        if (type1 != type2) {
+          SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "Type mismatch in both headers");
+          flag = false;
+        }
+      }
+      // Check the Version
+      if (flag == true) {
+        int version1 = TSHttpHdrVersionGet(bufp1, hdr_loc1);
+        int version2 = TSHttpHdrVersionGet(bufp4, hdr_loc4);
+
+        if (version1 != version2) {
+          SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "Version mismatch in both headers");
+          flag = false;
+        }
+      }
+      // Check the Method
+      if (flag == true) {
+        method1 = TSHttpHdrMethodGet(bufp1, hdr_loc1, &length1);
+        method2 = TSHttpHdrMethodGet(bufp4, hdr_loc4, &length2);
+        if ((length1 != length2) || (strncmp(method1, method2, length1) != 0)) {
+          SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "Method mismatch in both headers");
+          flag = false;
+        }
+      }
+      // Check the URL
+      if (flag == true) {
+
+        if ((TSHttpHdrUrlGet(bufp1, hdr_loc1, &url_loc1) != TS_SUCCESS) ||
+            (TSHttpHdrUrlGet(bufp4, hdr_loc4, &url_loc2) != TS_SUCCESS)) {
+          SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "TSHttpVersionGet returns TS_ERROR");
+          flag = false;
+        } else {
+          const char *scheme1;
+          const char *scheme2;
+
+          const char *host1;
+          const char *host2;
+
+          int port1;
+          int port2;
+
+          const char *path1;
+          const char *path2;
+
+          // URL Scheme
+          scheme1 = TSUrlSchemeGet(bufp1, url_loc1, &length1);
+          scheme2 = TSUrlSchemeGet(bufp4, url_loc2, &length2);
+          if ((length1 != length2) || (strncmp(scheme1, scheme2, length1) != 0)) {
+            SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "Url Scheme has different values in both headers");
+            flag = false;
+          }
+
+          // URL Host
+          if (flag == true) {
+            host1 = TSUrlHostGet(bufp1, url_loc1, &length1);
+            host2 = TSUrlHostGet(bufp4, url_loc2, &length2);
+            if ((length1 != length2) || (strncmp(host1, host2, length1) != 0)) {
+              SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "Url Host has different values in both headers");
+              flag = false;
+            }
+          }
+          // URL Port
+          if (flag == true) {
+            port1 = TSUrlPortGet(bufp1, url_loc1);
+            port2 = TSUrlPortGet(bufp4, url_loc2);
+            if (port1 != port2) {
+              SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_FAIL, "Url Port has different values in both headers");
+              flag = false;
+            }
+          }
+          // URL Path
+          if (flag == true) {
+            path1 = TSUrlPathGet(bufp1, url_loc1, &length1);
+            path2 = TSUrlPathGet(bufp4, url_loc2, &length2);
+            if ((path1 != NULL) && (path2 != NULL)) {
+              if ((length1 != length2) || (strncmp(path1, path2, length1) != 0)) {
+                SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Path has different values in both headers");
+                flag = false;
+              }
+            } else {
+              if (path1 != path2) {
+                SDK_RPRINT(test, "TSHttpHdrCopy", "TestCase1", TC_FAIL, "Url Host has different values in both headers");
+                flag = false;
+              }
+            }
+            if ((TSHandleMLocRelease(bufp1, hdr_loc1, url_loc1) == TS_ERROR) ||
+                (TSHandleMLocRelease(bufp4, hdr_loc4, url_loc2) == TS_ERROR)) {
+              SDK_RPRINT(test, "TSHandleMLocRelease", "", TC_FAIL, "Unable to release Handle acquired by TSHttpHdrUrlGet");
+            }
+          }
+
+          if (flag == true) {
+            SDK_RPRINT(test, "TSHttpHdrClone", "TestCase1", TC_PASS, "ok");
+            test_passed_Http_Hdr_Clone = true;
+          }
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrClone", "All Test Cases", TC_PASS, "Cannot run test as TSHttpHdrCreate has failed");
+  }
+
+
+  //LengthGet
+  if (test_passed_Http_Hdr_Create == true) {
+    actual_length = TSHttpHdrLengthGet(bufp1, hdr_loc1);
+    TSIOBuffer iobuf = TSIOBufferCreate();
+    TSHttpHdrPrint(bufp1, hdr_loc1, iobuf);
+    TSIOBufferReader iobufreader = TSIOBufferReaderAlloc(iobuf);
+
+    expected_length = TSIOBufferReaderAvail(iobufreader);
+    if (actual_length == expected_length) {
+      SDK_RPRINT(test, "TSHttpHdrLengthGet", "TestCase1", TC_PASS, "ok");
+      test_passed_Http_Hdr_Length = true;
+    } else {
+      SDK_RPRINT(test, "TSHttpHdrLengthGet", "TestCase1", TC_FAIL, "Incorrect value returned.");
+    }
+
+    // Print.
+    if ((test_passed_Http_Hdr_Method == true) && (test_passed_Http_Hdr_Url == true) &&
+        (test_passed_Http_Hdr_Version == true) && (test_passed_Http_Hdr_Length == true) &&
+        (try_print_function == true)) {
+      char *actual_iobuf = NULL;
+
+      actual_iobuf = (char *) TSmalloc((actual_length + 1) * sizeof(char));
+
+      if (actual_iobuf == NULL) {
+        SDK_RPRINT(test, "TSHttpHdrPrint", "TestCase1", TC_FAIL, "Unable to allocate memory");
+      } else {
+
+        TSIOBufferBlock iobufblock;
+        int64_t bytes_read;
+
+        memset(actual_iobuf, 0, (actual_length + 1) * sizeof(char));
+        bytes_read = 0;
+
+        iobufblock = TSIOBufferReaderStart(iobufreader);
+
+        while (iobufblock != NULL) {
+          const char *block_start;
+          int64_t block_size;
+
+          block_start = TSIOBufferBlockReadStart(iobufblock, iobufreader, &block_size);
+          if (block_size <= 0)
+            break;
+
+          memcpy(actual_iobuf + bytes_read, block_start, block_size);
+          bytes_read += block_size;
+          TSIOBufferReaderConsume(iobufreader, block_size);
+          iobufblock = TSIOBufferReaderStart(iobufreader);
+        }
+        if (strcmp(actual_iobuf, expected_iobuf) == 0) {
+          SDK_RPRINT(test, "TSHttpHdrPrint", "TestCase1", TC_PASS, "ok");
+          test_passed_Http_Hdr_Print = true;
+        } else {
+          SDK_RPRINT(test, "TSHttpHdrPrint", "TestCase1", TC_FAIL, "Value's mismatch");
+        }
+
+        TSfree(actual_iobuf);
+        TSIOBufferReaderFree(iobufreader);
+        TSIOBufferDestroy(iobuf);
+      }
+    } else {
+      SDK_RPRINT(test, "TSHttpHdrPrint", "TestCase1", TC_FAIL, "Unable to run test for TSHttpHdrPrint");
+    }
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrLengthGet", "All Test Cases", TC_PASS, "Cannot run test as TSHttpHdrCreate has failed");
+  }
+
+  // Destroy
+  if (test_passed_Http_Hdr_Create == true) {
+    TSHttpHdrDestroy(bufp1, hdr_loc1);
+    TSHttpHdrDestroy(bufp2, hdr_loc2);
+    TSHttpHdrDestroy(bufp3, hdr_loc3);
+    TSHttpHdrDestroy(bufp4, hdr_loc4);
+    if ((TSHandleMLocRelease(bufp1, TS_NULL_MLOC, hdr_loc1) == TS_ERROR) ||
+        (TSHandleMLocRelease(bufp2, TS_NULL_MLOC, hdr_loc2) == TS_ERROR) ||
+        (TSHandleMLocRelease(bufp3, TS_NULL_MLOC, hdr_loc3) == TS_ERROR) ||
+        (TSHandleMLocRelease(bufp4, TS_NULL_MLOC, hdr_loc4) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase1|2|3|4", TC_FAIL, "Unable to release the handle to headers");
+    }
+    SDK_RPRINT(test, "TSHttpHdrDestroy", "TestCase1&2&3&4", TC_PASS, "ok");
+    test_passed_Http_Hdr_Destroy = true;
+  } else {
+    SDK_RPRINT(test, "TSHttpHdrDestroy", "All Test Cases", TC_FAIL, "Cannot run test as header was not created");
+  }
+
+  if (bufp1) {
+    if (TSMBufferDestroy(bufp1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase1", TC_FAIL, "Unable to destroy MBuffer");
+    }
+  }
+
+  if (bufp2) {
+    if (TSMBufferDestroy(bufp2) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase2", TC_FAIL, "Unable to destroy MBuffer");
+    }
+  }
+
+  if (bufp3) {
+    if (TSMBufferDestroy(bufp3) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase3", TC_FAIL, "Unable to destroy MBuffer");
+    }
+  }
+
+  if (bufp4) {
+    if (TSMBufferDestroy(bufp4) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase4", TC_FAIL, "Unable to destroy MBuffer");
+    }
+  }
+
+  if ((test_passed_Http_Hdr_Create == true) &&
+      (test_passed_Http_Hdr_Type == true) &&
+      (test_passed_Http_Hdr_Method == true) &&
+      (test_passed_Http_Hdr_Url == true) &&
+      (test_passed_Http_Hdr_Status == true) &&
+      (test_passed_Http_Hdr_Reason == true) &&
+      (test_passed_Http_Hdr_Reason_Lookup == true) &&
+      (test_passed_Http_Hdr_Version == true) &&
+      (test_passed_Http_Hdr_Copy == true) &&
+      (test_passed_Http_Hdr_Clone == true) &&
+      (test_passed_Http_Hdr_Length == true) &&
+      (test_passed_Http_Hdr_Print == true) && (test_passed_Http_Hdr_Destroy == true)) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  return;
+
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSMimeHdrField
+//
+// Unit Test for API: TSMBufferCreate
+//                    TSMBufferDestroy
+//                    TSMimeHdrCreate
+//                    TSMimeHdrDestroy
+//                    TSMimeHdrFieldCreate
+//                    TSMimeHdrFieldDestroy
+//                    TSMimeHdrFieldFind
+//                    TSMimeHdrFieldGet
+//                    TSMimeHdrFieldAppend
+//                    TSMimeHdrFieldNameGet
+//                    TSMimeHdrFieldNameSet
+//                    TSMimeHdrFieldNext
+//                    TSMimeHdrFieldsClear
+//                    TSMimeHdrFieldsCount
+//                    TSMimeHdrFieldValueAppend
+//                    TSMimeHdrFieldValueDelete
+//                    TSMimeHdrFieldValueStringGet
+//                    TSMimeHdrFieldValueDateGet
+//                    TSMimeHdrFieldValueIntGet
+//                    TSMimeHdrFieldValueUintGet
+//                    TSMimeHdrFieldValueStringInsert
+//                    TSMimeHdrFieldValueDateInsert
+//                    TSMimeHdrFieldValueIntInsert
+//                    TSMimeHdrFieldValueUintInsert
+//                    TSMimeHdrFieldValuesClear
+//                    TSMimeHdrFieldValuesCount
+//                    TSMimeHdrFieldValueStringSet
+//                    TSMimeHdrFieldValueDateSet
+//                    TSMimeHdrFieldValueIntSet
+//                    TSMimeHdrFieldValueUintSet
+//                    TSMimeHdrLengthGet
+//                    TSMimeHdrPrint
+//////////////////////////////////////////////
+
+TSReturnCode
+compare_field_names(RegressionTest * /* test ATS_UNUSED */, TSMBuffer bufp1, TSMLoc mime_loc1, TSMLoc field_loc1,
+                    TSMBuffer bufp2, TSMLoc mime_loc2, TSMLoc field_loc2)
+{
+  const char *name1;
+  const char *name2;
+  int length1;
+  int length2;
+
+  name1 = TSMimeHdrFieldNameGet(bufp1, mime_loc1, field_loc1, &length1);
+  name2 = TSMimeHdrFieldNameGet(bufp2, mime_loc2, field_loc2, &length2);
+
+  if ((length1 == length2) && (strncmp(name1, name2, length1) == 0) ) {
+    return TS_SUCCESS;
+  } else {
+    return TS_ERROR;
+  }
+}
+
+REGRESSION_TEST(SDK_API_TSMimeHdrField) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  TSMBuffer bufp1 = (TSMBuffer)NULL;
+
+  TSMLoc mime_loc1 = (TSMLoc)NULL;
+
+  TSMLoc field_loc11 = (TSMLoc)NULL;
+  TSMLoc field_loc12 = (TSMLoc)NULL;
+  TSMLoc field_loc13 = (TSMLoc)NULL;
+  TSMLoc field_loc14 = (TSMLoc)NULL;
+  TSMLoc field_loc15 = (TSMLoc)NULL;
+
+
+  const char *field1Name = "field1";
+  const char *field2Name = "field2";
+  const char *field3Name = "field3";
+  const char *field4Name = "field4";
+  const char *field5Name = "field5";
+
+  const char *field1NameGet;
+  const char *field2NameGet;
+  const char *field3NameGet;
+  const char *field4NameGet;
+  const char *field5NameGet;
+
+  int field1NameGetLength;
+  int field2NameGetLength;
+  int field3NameGetLength;
+  int field4NameGetLength;
+  int field5NameGetLength;
+
+  int field1_length;
+  int field2_length;
+  int field3_length;
+  int field4_length;
+  /* int field5_length; unused: lv */
+
+  TSMLoc test_field_loc11 = (TSMLoc)NULL;
+  TSMLoc test_field_loc12 = (TSMLoc)NULL;
+  TSMLoc test_field_loc13 = (TSMLoc)NULL;
+  TSMLoc test_field_loc14 = (TSMLoc)NULL;
+  TSMLoc test_field_loc15 = (TSMLoc)NULL;
+
+  int actualNumberOfFields;
+  int numberOfFields;
+
+  const char *field1Value1 = "field1Value1";
+  const char *field1Value2 = "field1Value2";
+  const char *field1Value3 = "field1Value3";
+  const char *field1Value4 = "field1Value4";
+  const char *field1Value5 = "field1Value5";
+  const char *field1ValueNew = "newfieldValue";
+
+  const char *field1Value1Get;
+  const char *field1Value2Get;
+  const char *field1Value3Get;
+  const char *field1Value4Get;
+  const char *field1Value5Get;
+  const char *field1ValueAllGet;
+  const char *field1ValueNewGet;
+
+  int lengthField1Value1;
+  int lengthField1Value2;
+  int lengthField1Value3;
+  int lengthField1Value4;
+  int lengthField1Value5;
+  int lengthField1ValueAll;
+  int lengthField1ValueNew;
+
+  time_t field2Value1 = time(NULL);
+  time_t field2Value1Get;
+  time_t field2ValueNew;
+  time_t field2ValueNewGet;
+
+  int field3Value1 = 31;
+  int field3Value2 = 32;
+  int field3Value3 = 33;
+  int field3Value4 = 34;
+  int field3Value5 = 35;
+  int field3ValueNew = 30;
+
+  int field3Value1Get;
+  int field3Value2Get;
+  int field3Value3Get;
+  int field3Value4Get;
+  int field3Value5Get;
+  int field3ValueNewGet;
+
+  unsigned int field4Value1 = 41;
+  unsigned int field4Value2 = 42;
+  unsigned int field4Value3 = 43;
+  unsigned int field4Value4 = 44;
+  unsigned int field4Value5 = 45;
+  unsigned int field4ValueNew = 40;
+
+  unsigned int field4Value1Get;
+  unsigned int field4Value2Get;
+  unsigned int field4Value3Get;
+  unsigned int field4Value4Get;
+  unsigned int field4Value5Get;
+  unsigned int field4ValueNewGet;
+
+  const char *field5Value1 = "field5Value1";
+  const char *field5Value1Append = "AppendedValue";
+  const char *fieldValueAppendGet;
+  int lengthFieldValueAppended;
+  int field5Value2 = 52;
+  const char *field5Value3 = "DeleteValue";
+  const char *fieldValueDeleteGet;
+  int lengthFieldValueDeleteGet;
+  unsigned int field5Value4 = 54;
+  int numberOfValueInField;
+
+  TSMLoc field_loc;
+
+  bool test_passed_MBuffer_Create = false;
+  bool test_passed_Mime_Hdr_Create = false;
+  bool test_passed_Mime_Hdr_Field_Create = false;
+  bool test_passed_Mime_Hdr_Field_Name = false;
+  bool test_passed_Mime_Hdr_Field_Append = false;
+  bool test_passed_Mime_Hdr_Field_Get = false;
+  bool test_passed_Mime_Hdr_Field_Next = false;
+  bool test_passed_Mime_Hdr_Fields_Count = false;
+  bool test_passed_Mime_Hdr_Field_Value_String_Insert = false;
+  bool test_passed_Mime_Hdr_Field_Value_String_Get = false;
+  bool test_passed_Mime_Hdr_Field_Value_String_Set = false;
+  bool test_passed_Mime_Hdr_Field_Value_Date_Insert = false;
+  bool test_passed_Mime_Hdr_Field_Value_Date_Get = false;
+  bool test_passed_Mime_Hdr_Field_Value_Date_Set = false;
+  bool test_passed_Mime_Hdr_Field_Value_Int_Insert = false;
+  bool test_passed_Mime_Hdr_Field_Value_Int_Get = false;
+  bool test_passed_Mime_Hdr_Field_Value_Int_Set = false;
+  bool test_passed_Mime_Hdr_Field_Value_Uint_Insert = false;
+  bool test_passed_Mime_Hdr_Field_Value_Uint_Get = false;
+  bool test_passed_Mime_Hdr_Field_Value_Uint_Set = false;
+  bool test_passed_Mime_Hdr_Field_Value_Append = false;
+  bool test_passed_Mime_Hdr_Field_Value_Delete = false;
+  bool test_passed_Mime_Hdr_Field_Values_Clear = false;
+  bool test_passed_Mime_Hdr_Field_Values_Count = false;
+  bool test_passed_Mime_Hdr_Field_Destroy = false;
+  bool test_passed_Mime_Hdr_Fields_Clear = false;
+  bool test_passed_Mime_Hdr_Destroy = false;
+  bool test_passed_MBuffer_Destroy = false;
+  bool test_passed_Mime_Hdr_Field_Length_Get = false;
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  // TSMBufferCreate
+  bufp1 = TSMBufferCreate();
+  SDK_RPRINT(test, "TSMBufferCreate", "TestCase1", TC_PASS, "ok");
+  test_passed_MBuffer_Create = true;
+
+  // TSMimeHdrCreate
+  if (test_passed_MBuffer_Create == true) {
+    if (TSMimeHdrCreate(bufp1, &mime_loc1) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrCreate", "TestCase1", TC_FAIL, "TSMimeHdrCreate Returns TS_ERROR");
+    } else {
+      SDK_RPRINT(test, "TSMimeHdrCreate", "TestCase1", TC_PASS, "ok");
+      test_passed_Mime_Hdr_Create = true;
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrCreate", "TestCase1", TC_FAIL, "Cannot run test as Test for TSMBufferCreate Failed");
+  }
+
+  // TSMimeHdrFieldCreate
+  if (test_passed_Mime_Hdr_Create == true) {
+    if ((TSMimeHdrFieldCreate(bufp1, mime_loc1, &field_loc11) != TS_SUCCESS) ||
+        (TSMimeHdrFieldCreate(bufp1, mime_loc1, &field_loc12) != TS_SUCCESS) ||
+        (TSMimeHdrFieldCreate(bufp1, mime_loc1, &field_loc13) != TS_SUCCESS) ||
+        (TSMimeHdrFieldCreate(bufp1, mime_loc1, &field_loc14) != TS_SUCCESS) ||
+        (TSMimeHdrFieldCreate(bufp1, mime_loc1, &field_loc15) != TS_SUCCESS)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldCreate", "TestCase1|2|3|4|5", TC_FAIL, "TSMimeHdrFieldCreate Returns TS_ERROR");
+    } else {
+      SDK_RPRINT(test, "TSMimeHdrFieldCreate", "TestCase1|2|3|4|5", TC_PASS, "ok");
+      test_passed_Mime_Hdr_Field_Create = true;
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldCreate", "All Test Case", TC_FAIL, "Cannot run test as Test for TSMimeHdrCreate Failed");
+  }
+
+
+  //TSMimeHdrFieldNameGet&Set
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if ((TSMimeHdrFieldNameSet(bufp1, mime_loc1, field_loc11, field1Name, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldNameSet(bufp1, mime_loc1, field_loc12, field2Name, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldNameSet(bufp1, mime_loc1, field_loc13, field3Name, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldNameSet(bufp1, mime_loc1, field_loc14, field4Name, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldNameSet(bufp1, mime_loc1, field_loc15, field5Name, -1) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldNameSet", "TestCase1|2|3|4|5", TC_FAIL, "TSMimeHdrFieldNameSet Returns TS_ERROR");
+    } else {
+      field1NameGet = TSMimeHdrFieldNameGet(bufp1, mime_loc1, field_loc11, &field1NameGetLength);
+      field2NameGet = TSMimeHdrFieldNameGet(bufp1, mime_loc1, field_loc12, &field2NameGetLength);
+      field3NameGet = TSMimeHdrFieldNameGet(bufp1, mime_loc1, field_loc13, &field3NameGetLength);
+      field4NameGet = TSMimeHdrFieldNameGet(bufp1, mime_loc1, field_loc14, &field4NameGetLength);
+      field5NameGet = TSMimeHdrFieldNameGet(bufp1, mime_loc1, field_loc15, &field5NameGetLength);
+      if (((strncmp(field1NameGet, field1Name, field1NameGetLength) == 0) && (field1NameGetLength == (int) strlen(field1Name))) &&
+          ((strncmp(field2NameGet, field2Name, field2NameGetLength) == 0) && (field2NameGetLength == (int) strlen(field2Name))) &&
+          ((strncmp(field3NameGet, field3Name, field3NameGetLength) == 0) && (field3NameGetLength == (int) strlen(field3Name))) &&
+          ((strncmp(field4NameGet, field4Name, field4NameGetLength) == 0) && (field4NameGetLength == (int) strlen(field4Name))) &&
+          ((strncmp(field5NameGet, field5Name, field5NameGetLength) == 0) && field5NameGetLength == (int) strlen(field5Name))) {
+        SDK_RPRINT(test, "TSMimeHdrFieldNameGet&Set", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Name = true;
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldNameGet&Set", "TestCase1|2|3|4|5", TC_FAIL, "Values Don't Match");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldNameGet&Set", "All Test Case", TC_FAIL,
+               "Cannot run test as Test for TSMBufferFieldCreate Failed");
+  }
+
+
+  // TSMimeHdrFieldAppend, TSMimeHdrFieldGet, TSMimeHdrFieldNext
+  if (test_passed_Mime_Hdr_Field_Name == true) {
+    if ((TSMimeHdrFieldAppend(bufp1, mime_loc1, field_loc11) != TS_SUCCESS) ||
+        (TSMimeHdrFieldAppend(bufp1, mime_loc1, field_loc12) != TS_SUCCESS) ||
+        (TSMimeHdrFieldAppend(bufp1, mime_loc1, field_loc13) != TS_SUCCESS) ||
+        (TSMimeHdrFieldAppend(bufp1, mime_loc1, field_loc14) != TS_SUCCESS) ||
+        (TSMimeHdrFieldAppend(bufp1, mime_loc1, field_loc15) != TS_SUCCESS)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase1|2|3|4|5", TC_FAIL, "TSMimeHdrFieldAppend Returns TS_ERROR");
+    } else {
+      if (TS_NULL_MLOC == (test_field_loc11 = TSMimeHdrFieldGet(bufp1, mime_loc1, 0))) {
+        SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase1|2|3|4|5", TC_FAIL, "TSMimeHdrFieldGet Returns TS_NULL_MLOC");
+        SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase1", TC_FAIL,
+                   "Cannot Test TSMimeHdrFieldNext as TSMimeHdrFieldGet Returns TS_NULL_MLOC");
+        SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase1", TC_FAIL, "TSMimeHdrFieldGet Returns TS_NULL_MLOC");
+      } else {
+        if (compare_field_names(test, bufp1, mime_loc1, field_loc11, bufp1, mime_loc1, test_field_loc11) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase1", TC_FAIL, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase1", TC_FAIL, "Cannot Test TSMimeHdrFieldNext as Values don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase1", TC_FAIL, "Values Don't match");
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase1", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase1", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Field_Append = true;
+          test_passed_Mime_Hdr_Field_Get = true;
+        }
+      }
+
+      if (test_passed_Mime_Hdr_Field_Append == true) {
+        test_field_loc12 = TSMimeHdrFieldNext(bufp1, mime_loc1, test_field_loc11);
+        if (compare_field_names(test, bufp1, mime_loc1, field_loc12, bufp1, mime_loc1, test_field_loc12) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase2", TC_PASS, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase2", TC_PASS, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase2", TC_PASS, "Values Don't match");
+          test_passed_Mime_Hdr_Field_Append = false;
+          test_passed_Mime_Hdr_Field_Next = false;
+          test_passed_Mime_Hdr_Field_Get = false;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase2", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase2", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase2", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Field_Next = true;
+        }
+      }
+
+      if (test_passed_Mime_Hdr_Field_Append == true) {
+        test_field_loc13 = TSMimeHdrFieldNext(bufp1, mime_loc1, test_field_loc12);
+        if (compare_field_names(test, bufp1, mime_loc1, field_loc13, bufp1, mime_loc1, test_field_loc13) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase3", TC_FAIL, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase3", TC_FAIL, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase3", TC_FAIL, "Values Don't match");
+          test_passed_Mime_Hdr_Field_Append = false;
+          test_passed_Mime_Hdr_Field_Next = false;
+          test_passed_Mime_Hdr_Field_Get = false;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase3", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase3", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase3", TC_PASS, "ok");
+        }
+      }
+
+      if (test_passed_Mime_Hdr_Field_Append == true) {
+        test_field_loc14 = TSMimeHdrFieldNext(bufp1, mime_loc1, test_field_loc13);
+        if (compare_field_names(test, bufp1, mime_loc1, field_loc14, bufp1, mime_loc1, test_field_loc14) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase4", TC_FAIL, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase4", TC_FAIL, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase4", TC_FAIL, "Values Don't match");
+          test_passed_Mime_Hdr_Field_Append = false;
+          test_passed_Mime_Hdr_Field_Next = false;
+          test_passed_Mime_Hdr_Field_Get = false;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase4", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase4", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldGet", "TestCase4", TC_PASS, "ok");
+        }
+      }
+
+      if (test_passed_Mime_Hdr_Field_Append == true) {
+        test_field_loc15 = TSMimeHdrFieldNext(bufp1, mime_loc1, test_field_loc14);
+        if (compare_field_names(test, bufp1, mime_loc1, field_loc15, bufp1, mime_loc1, test_field_loc15) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase5", TC_FAIL, "Values Don't match");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase5", TC_FAIL, "Values Don't match");
+          test_passed_Mime_Hdr_Field_Append = false;
+          test_passed_Mime_Hdr_Field_Next = false;
+          test_passed_Mime_Hdr_Field_Get = false;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldAppend", "TestCase5", TC_PASS, "ok");
+          SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase5", TC_PASS, "ok");
+        }
+      }
+
+      if ((TSHandleMLocRelease(bufp1, mime_loc1, test_field_loc11) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, test_field_loc12) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, test_field_loc13) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, test_field_loc14) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, test_field_loc15) == TS_ERROR)) {
+        SDK_RPRINT(test, "TSMimeHdrFieldAppend/Next/Get", "", TC_FAIL,
+                   "Unable to release handle using TSHandleMLocRelease. Can be bad handle.");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldAppend & TSMimeHdrFieldNext", "All Test Case", TC_FAIL,
+               "Cannot run test as Test for TSMimeHdrFieldNameGet&Set Failed");
+  }
+
+
+  //TSMimeHdrFieldsCount
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if ((numberOfFields = TSMimeHdrFieldsCount(bufp1, mime_loc1)) < 0 ) {
+      SDK_RPRINT(test, "TSMimeHdrFieldsCount", "TestCase1", TC_FAIL, "TSMimeHdrFieldsCount Returns TS_ERROR");
+    } else {
+      actualNumberOfFields = 0;
+      if ((field_loc = TSMimeHdrFieldGet(bufp1, mime_loc1, actualNumberOfFields)) == TS_NULL_MLOC) {
+        SDK_RPRINT(test, "TSMimeHdrFieldsCount", "TestCase1", TC_FAIL, "TSMimeHdrFieldGet Returns TS_NULL_MLOC");
+      } else {
+        while (field_loc != NULL) {
+          TSMLoc next_field_loc;
+
+          actualNumberOfFields++;
+          next_field_loc = TSMimeHdrFieldNext(bufp1, mime_loc1, field_loc);
+          if (TSHandleMLocRelease(bufp1, mime_loc1, field_loc) == TS_ERROR) {
+            SDK_RPRINT(test, "TSMimeHdrFieldsCount", "TestCase1", TC_FAIL, "Unable to release handle using TSHandleMLocRelease");
+          }
+          field_loc = next_field_loc;
+          next_field_loc = NULL;
+        }
+        if (actualNumberOfFields == numberOfFields) {
+          SDK_RPRINT(test, "TSMimeHdrFieldsCount", "TestCase1", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Fields_Count = true;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldsCount", "TestCase1", TC_FAIL, "Values don't match");
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldsCount", "TestCase1", TC_FAIL, "Cannot run Test as TSMimeHdrFieldCreate failed");
+  }
+
+  // TSMimeHdrFieldValueStringInsert, TSMimeHdrFieldValueStringGet, TSMimeHdrFieldValueStringSet
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if ((TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc11, -1, field1Value2, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc11, 0, field1Value1, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc11, -1, field1Value5, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc11, 2, field1Value4, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc11, 2, field1Value3, -1) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldValueStringInsert", "TestCase1|2|3|4|5", TC_FAIL,
+                 "TSMimeHdrFieldValueStringInsert Returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueStringGet", "TestCase1&2&3&4&5", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueStringInsert returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueStringSet", "TestCase1", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueStringInsert returns TS_ERROR");
+    } else {
+      field1Value1Get = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, 0, &lengthField1Value1);
+      field1Value2Get = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, 1, &lengthField1Value2);
+      field1Value3Get = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, 2, &lengthField1Value3);
+      field1Value4Get = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, 3, &lengthField1Value4);
+      field1Value5Get = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, 4, &lengthField1Value5);
+      field1ValueAllGet = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, -1, &lengthField1ValueAll);
+      if (((strncmp(field1Value1Get, field1Value1, lengthField1Value1) == 0) && lengthField1Value1 == (int) strlen(field1Value1)) &&
+          ((strncmp(field1Value2Get, field1Value2, lengthField1Value2) == 0) && lengthField1Value2 == (int) strlen(field1Value2)) &&
+          ((strncmp(field1Value3Get, field1Value3, lengthField1Value3) == 0) && lengthField1Value3 == (int) strlen(field1Value3)) &&
+          ((strncmp(field1Value4Get, field1Value4, lengthField1Value4) == 0) && lengthField1Value4 == (int) strlen(field1Value4)) &&
+          ((strncmp(field1Value5Get, field1Value5, lengthField1Value5) == 0) && lengthField1Value5 == (int) strlen(field1Value5)) &&
+          (strstr(field1ValueAllGet, field1Value1Get) == field1Value1Get) &&
+          (strstr(field1ValueAllGet, field1Value2Get) == field1Value2Get) &&
+          (strstr(field1ValueAllGet, field1Value3Get) == field1Value3Get) &&
+          (strstr(field1ValueAllGet, field1Value4Get) == field1Value4Get) &&
+          (strstr(field1ValueAllGet, field1Value5Get) == field1Value5Get)) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueStringInsert", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueStringGet", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueStringGet with IDX=-1", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Value_String_Insert = true;
+        test_passed_Mime_Hdr_Field_Value_String_Get = true;
+
+        if ((TSMimeHdrFieldValueStringSet(bufp1, mime_loc1, field_loc11, 3, field1ValueNew, -1)) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueStringSet", "TestCase1", TC_FAIL, "TSMimeHdrFieldValueStringSet returns TS_ERROR");
+        } else {
+          field1ValueNewGet = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc11, 3, &lengthField1ValueNew);
+          if ((strncmp(field1ValueNewGet, field1ValueNew, lengthField1ValueNew) == 0) &&
+              (lengthField1ValueNew == (int) strlen(field1ValueNew))) {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueStringSet", "TestCase1", TC_PASS, "ok");
+            test_passed_Mime_Hdr_Field_Value_String_Set = true;
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueStringSet", "TestCase1", TC_FAIL, "Value's Don't match");
+          }
+        }
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueStringInsert", "TestCase1|2|3|4|5", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueStringGet", "TestCase1|2|3|4|5", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueStringSet", "TestCase1", TC_FAIL,
+                   "TSMimeHdrFieldValueStringSet cannot be tested as TSMimeHdrFieldValueStringInsert|Get failed");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldValueStringInsert&Set&Get", "All", TC_FAIL, "Cannot run Test as TSMimeHdrFieldCreate failed");
+  }
+
+
+  // TSMimeHdrFieldValueDateInsert, TSMimeHdrFieldValueDateGet, TSMimeHdrFieldValueDateSet
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if (TSMimeHdrFieldValueDateInsert(bufp1, mime_loc1, field_loc12, field2Value1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMimeHdrFieldValueDateInsert", "TestCase1", TC_FAIL, "TSMimeHdrFieldValueDateInsert Returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueDateGet", "TestCase1", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueDateInsert returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueDateSet", "TestCase1", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueDateInsert returns TS_ERROR");
+    } else {
+      field2Value1Get = TSMimeHdrFieldValueDateGet(bufp1, mime_loc1, field_loc12);
+      if (field2Value1Get == field2Value1) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueDateInsert", "TestCase1", TC_PASS, "ok");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueDateGet", "TestCase1", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Value_Date_Insert = true;
+        test_passed_Mime_Hdr_Field_Value_Date_Get = true;
+        field2ValueNew = time(NULL);
+        if ((TSMimeHdrFieldValueDateSet(bufp1, mime_loc1, field_loc12, field2ValueNew)) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueDateSet", "TestCase1", TC_FAIL, "TSMimeHdrFieldValueDateSet returns TS_ERROR");
+        } else {
+          field2ValueNewGet = TSMimeHdrFieldValueDateGet(bufp1, mime_loc1, field_loc12);
+          if (field2ValueNewGet == field2ValueNew) {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueDateSet", "TestCase1", TC_PASS, "ok");
+            test_passed_Mime_Hdr_Field_Value_Date_Set = true;
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueDateSet", "TestCase1", TC_FAIL, "Value's Don't match");
+          }
+        }
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueDateInsert", "TestCase1", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueDateGet", "TestCase1", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueDateSet", "TestCase1", TC_FAIL,
+                   "TSMimeHdrFieldValueDateSet cannot be tested as TSMimeHdrFieldValueDateInsert|Get failed");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldValueDateInsert&Set&Get", "TestCase1", TC_FAIL, "Cannot run Test as TSMimeHdrFieldCreate failed");
+  }
+
+
+  // TSMimeHdrFieldValueIntInsert, TSMimeHdrFieldValueIntGet, TSMimeHdrFieldValueIntSet
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if ((TSMimeHdrFieldValueIntInsert(bufp1, mime_loc1, field_loc13, -1, field3Value2) == TS_ERROR) ||
+        (TSMimeHdrFieldValueIntInsert(bufp1, mime_loc1, field_loc13, 0, field3Value1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueIntInsert(bufp1, mime_loc1, field_loc13, -1, field3Value5) == TS_ERROR) ||
+        (TSMimeHdrFieldValueIntInsert(bufp1, mime_loc1, field_loc13, 2, field3Value4) == TS_ERROR) ||
+        (TSMimeHdrFieldValueIntInsert(bufp1, mime_loc1, field_loc13, 2, field3Value3) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldValueIntInsert", "TestCase1|2|3|4|5", TC_FAIL, "TSMimeHdrFieldValueIntInsert Returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueIntGet", "TestCase1&2&3&4&5", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueIntInsert returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueIntSet", "TestCase1", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueIntInsert returns TS_ERROR");
+    } else {
+      field3Value1Get = TSMimeHdrFieldValueIntGet(bufp1, mime_loc1, field_loc13, 0);
+      field3Value2Get = TSMimeHdrFieldValueIntGet(bufp1, mime_loc1, field_loc13, 1);
+      field3Value3Get = TSMimeHdrFieldValueIntGet(bufp1, mime_loc1, field_loc13, 2);
+      field3Value4Get = TSMimeHdrFieldValueIntGet(bufp1, mime_loc1, field_loc13, 3);
+      field3Value5Get = TSMimeHdrFieldValueIntGet(bufp1, mime_loc1, field_loc13, 4);
+      if ((field3Value1Get == field3Value1) && (field3Value2Get == field3Value2) && (field3Value3Get == field3Value3) &&
+          (field3Value4Get == field3Value4) && (field3Value5Get == field3Value5)) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueIntInsert", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueIntGet", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Value_Int_Insert = true;
+        test_passed_Mime_Hdr_Field_Value_Int_Get = true;
+        if ((TSMimeHdrFieldValueIntSet(bufp1, mime_loc1, field_loc13, 3, field3ValueNew)) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueIntSet", "TestCase1", TC_FAIL, "TSMimeHdrFieldValueIntSet returns TS_ERROR");
+        } else {
+          field3ValueNewGet = TSMimeHdrFieldValueIntGet(bufp1, mime_loc1, field_loc13, 3);
+          if (field3ValueNewGet == field3ValueNew) {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueIntSet", "TestCase1", TC_PASS, "ok");
+            test_passed_Mime_Hdr_Field_Value_Int_Set = true;
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueIntSet", "TestCase1", TC_FAIL, "Value's Don't match");
+          }
+        }
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueIntInsert", "TestCase1|2|3|4|5", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueIntGet", "TestCase1|2|3|4|5", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueIntSet", "TestCase1", TC_FAIL,
+                   "TSMimeHdrFieldValueIntSet cannot be tested as TSMimeHdrFieldValueIntInsert|Get failed");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldValueIntInsert&Set&Get", "All", TC_FAIL, "Cannot run Test as TSMimeHdrFieldCreate failed");
+  }
+
+  // TSMimeHdrFieldValueUintInsert, TSMimeHdrFieldValueUintGet, TSMimeHdrFieldValueUintSet
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if ((TSMimeHdrFieldValueUintInsert(bufp1, mime_loc1, field_loc14, -1, field4Value2) == TS_ERROR) ||
+        (TSMimeHdrFieldValueUintInsert(bufp1, mime_loc1, field_loc14, 0, field4Value1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueUintInsert(bufp1, mime_loc1, field_loc14, -1, field4Value5) == TS_ERROR) ||
+        (TSMimeHdrFieldValueUintInsert(bufp1, mime_loc1, field_loc14, 2, field4Value4) == TS_ERROR) ||
+        (TSMimeHdrFieldValueUintInsert(bufp1, mime_loc1, field_loc14, 2, field4Value3) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldValueUintInsert", "TestCase1|2|3|4|5", TC_FAIL,
+                 "TSMimeHdrFieldValueUintInsert Returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueUintGet", "TestCase1&2&3&4&5", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueUintInsert returns TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueUintSet", "TestCase1", TC_FAIL,
+                 "Cannot run Test as TSMimeHdrFieldValueUintInsert returns TS_ERROR");
+    } else {
+      field4Value1Get = TSMimeHdrFieldValueUintGet(bufp1, mime_loc1, field_loc14, 0);
+      field4Value2Get = TSMimeHdrFieldValueUintGet(bufp1, mime_loc1, field_loc14, 1);
+      field4Value3Get = TSMimeHdrFieldValueUintGet(bufp1, mime_loc1, field_loc14, 2);
+      field4Value4Get = TSMimeHdrFieldValueUintGet(bufp1, mime_loc1, field_loc14, 3);
+      field4Value5Get = TSMimeHdrFieldValueUintGet(bufp1, mime_loc1, field_loc14, 4);
+      if ((field4Value1Get == field4Value1) && (field4Value2Get == field4Value2) && (field4Value3Get == field4Value3) &&
+          (field4Value4Get == field4Value4) && (field4Value5Get == field4Value5)) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueUintInsert", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueUintGet", "TestCase1&2&3&4&5", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Value_Uint_Insert = true;
+        test_passed_Mime_Hdr_Field_Value_Uint_Get = true;
+        if ((TSMimeHdrFieldValueUintSet(bufp1, mime_loc1, field_loc14, 3, field4ValueNew)) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueUintSet", "TestCase1", TC_FAIL, "TSMimeHdrFieldValueUintSet returns TS_ERROR");
+        } else {
+          field4ValueNewGet = TSMimeHdrFieldValueUintGet(bufp1, mime_loc1, field_loc14, 3);
+          if (field4ValueNewGet == field4ValueNew) {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueUintSet", "TestCase1", TC_PASS, "ok");
+            test_passed_Mime_Hdr_Field_Value_Uint_Set = true;
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldValueUintSet", "TestCase1", TC_FAIL, "Value's Don't match");
+          }
+        }
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueUintInsert", "TestCase1|2|3|4|5", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueUintGet", "TestCase1|2|3|4|5", TC_PASS, "Value's Don't Match");
+        SDK_RPRINT(test, "TSMimeHdrFieldValueUintSet", "TestCase1", TC_FAIL,
+                   "TSMimeHdrFieldValueUintSet cannot be tested as TSMimeHdrFieldValueUintInsert|Get failed");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldValueUintInsert&Set&Get", "All", TC_FAIL, "Cannot run Test as TSMimeHdrFieldCreate failed");
+  }
+
+  // TSMimeHdrFieldLengthGet
+  field1_length = TSMimeHdrFieldLengthGet(bufp1, mime_loc1, field_loc11);
+  field2_length = TSMimeHdrFieldLengthGet(bufp1, mime_loc1, field_loc12);
+  field3_length = TSMimeHdrFieldLengthGet(bufp1, mime_loc1, field_loc13);
+  field4_length = TSMimeHdrFieldLengthGet(bufp1, mime_loc1, field_loc14);
+  if ((field1_length == 0) || (field2_length == 0) || (field3_length == 0) || (field4_length == 0)) {
+    SDK_RPRINT(test, "TSMimeHdrFieldLengthGet", "TestCase1", TC_FAIL, "Returned bad length");
+    test_passed_Mime_Hdr_Field_Length_Get = false;
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldLengthGet", "TestCase1", TC_PASS, "ok");
+    test_passed_Mime_Hdr_Field_Length_Get = true;
+  }
+
+
+
+  // TSMimeHdrFieldValueAppend, TSMimeHdrFieldValueDelete, TSMimeHdrFieldValuesCount, TSMimeHdrFieldValuesClear
+
+  if (test_passed_Mime_Hdr_Field_Create == true) {
+    if ((TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc15, -1, field5Value1, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueIntInsert(bufp1, mime_loc1, field_loc15, -1, field5Value2) == TS_ERROR) ||
+        (TSMimeHdrFieldValueStringInsert(bufp1, mime_loc1, field_loc15, -1, field5Value3, -1) == TS_ERROR) ||
+        (TSMimeHdrFieldValueUintInsert(bufp1, mime_loc1, field_loc15, -1, field5Value4) == TS_ERROR)) {
+      SDK_RPRINT(test, "TSMimeHdrFieldValueAppend", "TestCase1", TC_FAIL,
+                 "TSMimeHdrFieldValueString|Int|UintInsert returns TS_ERROR. Cannot create field for testing.");
+      SDK_RPRINT(test, "TSMimeHdrFieldValueDelete", "TestCase1", TC_FAIL,
+                 "TSMimeHdrFieldValueString|Int|UintInsert returns TS_ERROR. Cannot create field for testing.");
+      SDK_RPRINT(test, "TSMimeHdrFieldValuesCount", "TestCase1", TC_FAIL,
+                 "TSMimeHdrFieldValueString|Int|UintInsert returns TS_ERROR. Cannot create field for testing.");
+      SDK_RPRINT(test, "TSMimeHdrFieldValuesClear", "TestCase1", TC_FAIL,
+                 "TSMimeHdrFieldValueString|Int|UintInsert returns TS_ERROR. Cannot create field for testing.");
+    } else {
+      if (TSMimeHdrFieldValueAppend(bufp1, mime_loc1, field_loc15, 0, field5Value1Append, -1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueAppend", "TestCase1", TC_FAIL,
+                   "TSMimeHdrFieldValueAppend returns TS_ERROR");
+      } else {
+        fieldValueAppendGet = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc15, 0, &lengthFieldValueAppended);
+        char *expected_value;
+        size_t len = strlen(field5Value1) + strlen(field5Value1Append) + 1;
+        expected_value = (char *) TSmalloc(len);
+        memset(expected_value, 0, len);
+        ink_strlcpy(expected_value, field5Value1, len);
+        ink_strlcat(expected_value, field5Value1Append, len);
+        if ((strncmp(fieldValueAppendGet, expected_value, lengthFieldValueAppended) == 0) &&
+            (lengthFieldValueAppended = strlen(expected_value))) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueAppend", "TestCase1", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Field_Value_Append = true;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueAppend", "TestCase1", TC_FAIL, "Values mismatch");
+        }
+        TSfree(expected_value);
+      }
+
+      numberOfValueInField = TSMimeHdrFieldValuesCount(bufp1, mime_loc1, field_loc15);
+      if (numberOfValueInField == 4) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValuesCount", "TestCase1", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Values_Count = true;
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldValuesCount", "TestCase1", TC_FAIL, "Values don't match");
+      }
+
+      if (TSMimeHdrFieldValueDelete(bufp1, mime_loc1, field_loc15, 2) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValueDelete", "TestCase1", TC_FAIL, "TSMimeHdrFieldValueDelete Returns TS_ERROR");
+      } else {
+        fieldValueDeleteGet = TSMimeHdrFieldValueStringGet(bufp1, mime_loc1, field_loc15, 2, &lengthFieldValueDeleteGet);
+        if ((strncmp(fieldValueDeleteGet, field5Value3, lengthFieldValueDeleteGet) == 0) &&
+            (lengthFieldValueDeleteGet == (int) strlen(field5Value3))) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueDelete", "TestCase1", TC_FAIL,
+                     "Value not deleted from field or incorrect index deleted from field.");
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldValueDelete", "TestCase1", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Field_Value_Delete = true;
+        }
+      }
+
+      if (TSMimeHdrFieldValuesClear(bufp1, mime_loc1, field_loc15) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrFieldValuesClear", "TestCase1", TC_FAIL, "TSMimeHdrFieldValuesClear returns TS_ERROR");
+      } else {
+        numberOfValueInField = TSMimeHdrFieldValuesCount(bufp1, mime_loc1, field_loc15);
+        if (numberOfValueInField == 0) {
+          SDK_RPRINT(test, "TSMimeHdrFieldValuesClear", "TestCase1", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Field_Values_Clear = true;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldValuesClear", "TestCase1", TC_FAIL, "Values don't match");
+        }
+      }
+    }
+
+    // TSMimeHdrFieldDestroy
+    if (TSMimeHdrFieldDestroy(bufp1, mime_loc1, field_loc15) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrFieldDestroy", "TestCase1", TC_FAIL, "TSMimeHdrFieldDestroy returns TS_ERROR");
+    } else {
+      if ((test_field_loc15 = TSMimeHdrFieldFind(bufp1, mime_loc1, field5Name, -1)) == TS_NULL_MLOC) {
+        SDK_RPRINT(test, "TSMimeHdrFieldDestroy", "TestCase1", TC_PASS, "ok");
+        test_passed_Mime_Hdr_Field_Destroy = true;
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldDestroy", "TestCase1", TC_FAIL, "Field not destroyed");
+        if (TSHandleMLocRelease(bufp1, mime_loc1, test_field_loc15) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldDestroy", "TestCase1", TC_FAIL, "Unable to release handle using TSHandleMLocRelease");
+        }
+      }
+      if (TSHandleMLocRelease(bufp1, mime_loc1, field_loc15) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrFieldDestroy", "TestCase2", TC_FAIL, "Unable to release handle using TSHandleMLocRelease");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldValueAppend", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrFieldCreate has failed");
+    SDK_RPRINT(test, "TSMimeHdrFieldValueDelete", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrFieldCreate has failed");
+    SDK_RPRINT(test, "TSMimeHdrFieldValuesCount", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrFieldCreate has failed");
+    SDK_RPRINT(test, "TSMimeHdrFieldValuesClear", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrFieldCreate has failed");
+    SDK_RPRINT(test, "TSMimeHdrFieldDestroy", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrFieldCreate has failed");
+  }
+
+  // Mime Hdr Fields Clear
+  if (test_passed_Mime_Hdr_Field_Append == true) {
+    if (TSMimeHdrFieldsClear(bufp1, mime_loc1) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrFieldsClear", "TestCase1", TC_FAIL, "TSMimeHdrFieldsClear returns TS_ERROR");
+    } else {
+      if ((numberOfFields = TSMimeHdrFieldsCount(bufp1, mime_loc1)) < 0) {
+        SDK_RPRINT(test, "TSMimeHdrFieldsClear", "TestCase1", TC_FAIL, "TSMimeHdrFieldsCount returns TS_ERROR");
+      } else {
+        if (numberOfFields == 0) {
+          SDK_RPRINT(test, "TSMimeHdrFieldsClear", "TestCase1", TC_PASS, "ok");
+          test_passed_Mime_Hdr_Fields_Clear = true;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldsClear", "TestCase1", TC_FAIL, "Fields still exist");
+        }
+      }
+      if ((TSHandleMLocRelease(bufp1, mime_loc1, field_loc11) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, field_loc12) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, field_loc13) == TS_ERROR) ||
+          (TSHandleMLocRelease(bufp1, mime_loc1, field_loc14) == TS_ERROR)) {
+        SDK_RPRINT(test, "TSMimeHdrFieldsDestroy", "", TC_FAIL, "Unable to release handle using TSHandleMLocRelease");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldsClear", "TestCase1", TC_FAIL,
+               "Cannot run test as Fields have not been inserted in the mime header");
+  }
+
+  // Mime Hdr Destroy
+  if (test_passed_Mime_Hdr_Create == true) {
+    if (TSMimeHdrDestroy(bufp1, mime_loc1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMimeHdrDestroy", "TestCase1", TC_FAIL, "TSMimeHdrDestroy return TS_ERROR");
+      SDK_RPRINT(test, "TSMimeHdrDestroy", "TestCase1", TC_FAIL, "Probably TSMimeHdrCreate failed.");
+    } else {
+      SDK_RPRINT(test, "TSMimeHdrDestroy", "TestCase1", TC_PASS, "ok");
+      test_passed_Mime_Hdr_Destroy = true;
+    }
+      /** Commented out as Traffic Server was crashing. Will have to look into it. */
+    /*
+       if (TSHandleMLocRelease(bufp1,TS_NULL_MLOC,mime_loc1)==TS_ERROR) {
+       SDK_RPRINT(test,"TSHandleMLocRelease","TSMimeHdrDestroy",TC_FAIL,"unable to release handle using TSHandleMLocRelease");
+       }
+     */
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrDestroy", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrCreate failed");
+  }
+
+  // MBuffer Destroy
+  if (test_passed_MBuffer_Create == true) {
+    if (TSMBufferDestroy(bufp1) == TS_ERROR) {
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase1", TC_FAIL, "TSMBufferDestroy return TS_ERROR");
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase1", TC_FAIL, "Probably TSMBufferCreate failed.");
+    } else {
+      SDK_RPRINT(test, "TSMBufferDestroy", "TestCase1", TC_PASS, "ok");
+      test_passed_MBuffer_Destroy = true;
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrDestroy", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrCreate failed");
+  }
+
+
+  if ((test_passed_MBuffer_Create == true) &&
+      (test_passed_Mime_Hdr_Create == true) &&
+      (test_passed_Mime_Hdr_Field_Create == true) &&
+      (test_passed_Mime_Hdr_Field_Name == true) &&
+      (test_passed_Mime_Hdr_Field_Append == true) &&
+      (test_passed_Mime_Hdr_Field_Get == true) &&
+      (test_passed_Mime_Hdr_Field_Next == true) &&
+      (test_passed_Mime_Hdr_Fields_Count == true) &&
+      (test_passed_Mime_Hdr_Field_Value_String_Insert == true) &&
+      (test_passed_Mime_Hdr_Field_Value_String_Get == true) &&
+      (test_passed_Mime_Hdr_Field_Value_String_Set == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Date_Insert == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Date_Get == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Date_Set == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Int_Insert == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Int_Get == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Int_Set == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Uint_Insert == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Uint_Get == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Uint_Set == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Append == true) &&
+      (test_passed_Mime_Hdr_Field_Value_Delete == true) &&
+      (test_passed_Mime_Hdr_Field_Values_Clear == true) &&
+      (test_passed_Mime_Hdr_Field_Values_Count == true) &&
+      (test_passed_Mime_Hdr_Field_Destroy == true) &&
+      (test_passed_Mime_Hdr_Fields_Clear == true) &&
+      (test_passed_Mime_Hdr_Destroy == true) &&
+      (test_passed_MBuffer_Destroy == true) && (test_passed_Mime_Hdr_Field_Length_Get == true)) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+  return;
+
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSHttpHdrParse
+//
+// Unit Test for API: TSHttpParserCreate
+//                    TSHttpParserDestroy
+//                    TSHttpParserClear
+//                    TSHttpHdrParseReq
+//                    TSHttpHdrParseResp
+//////////////////////////////////////////////
+
+char *
+convert_http_hdr_to_string(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  TSIOBuffer output_buffer;
+  TSIOBufferReader reader;
+  int64_t total_avail;
+
+  TSIOBufferBlock block;
+  const char *block_start;
+  int64_t block_avail;
+
+  char *output_string;
+  int output_len;
+
+  output_buffer = TSIOBufferCreate();
+
+  if (!output_buffer) {
+    TSError("couldn't allocate IOBuffer\n");
+  }
+
+  reader = TSIOBufferReaderAlloc(output_buffer);
+
+  /* This will print  just MIMEFields and not
+     the http request line */
+  TSHttpHdrPrint(bufp, hdr_loc, output_buffer);
+
+  /* Find out how the big the complete header is by
+     seeing the total bytes in the buffer.  We need to
+     look at the buffer rather than the first block to
+     see the size of the entire header */
+  total_avail = TSIOBufferReaderAvail(reader);
+
+  /* Allocate the string with an extra byte for the string
+     terminator */
+  output_string = (char *) TSmalloc(total_avail + 1);
+  output_len = 0;
+
+  /* We need to loop over all the buffer blocks to make
+     sure we get the complete header since the header can
+     be in multiple blocks */
+  block = TSIOBufferReaderStart(reader);
+  while (block) {
+
+    block_start = TSIOBufferBlockReadStart(block, reader, &block_avail);
+
+    /* We'll get a block pointer back even if there is no data
+       left to read so check for this condition and break out of
+       the loop. A block with no data to read means we've exhausted
+       buffer of data since if there was more data on a later
+       block in the chain, this block would have been skipped over */
+    if (block_avail == 0) {
+      break;
+    }
+
+    memcpy(output_string + output_len, block_start, block_avail);
+    output_len += block_avail;
+
+    /* Consume the data so that we get to the next block */
+    TSIOBufferReaderConsume(reader, block_avail);
+
+    /* Get the next block now that we've consumed the
+       data off the last block */
+    block = TSIOBufferReaderStart(reader);
+  }
+
+  /* Terminate the string */
+  output_string[output_len] = '\0';
+  output_len++;
+
+  /* Free up the TSIOBuffer that we used to print out the header */
+  TSIOBufferReaderFree(reader);
+  TSIOBufferDestroy(output_buffer);
+
+  return output_string;
+}
+
+REGRESSION_TEST(SDK_API_TSHttpHdrParse) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  const char *req =
+    "GET http://www.example.com/ HTTP/1.1\r\nmimefield1:field1value1,field1value2\r\nmimefield2:field2value1,field2value2\r\n\r\n";
+  const char *resp =
+    "HTTP/1.1 200 OK\r\n1mimefield:1field1value,1field2value\r\n2mimefield:2field1value,2field2value\r\n\r\n";
+  const char *start;
+  const char *end;
+  char *temp;
+
+  int retval;
+
+  TSMBuffer reqbufp;
+  TSMBuffer respbufp = (TSMBuffer)NULL;
+
+  TSMLoc req_hdr_loc = (TSMLoc)NULL;
+  TSMLoc resp_hdr_loc = (TSMLoc)NULL;
+
+  TSHttpParser parser;
+
+  bool test_passed_parse_req = false;
+  bool test_passed_parse_resp = false;
+  bool test_passed_parser_clear = false;
+  bool test_passed_parser_destroy = false;
+
+  //Create Parser
+  parser = TSHttpParserCreate();
+  SDK_RPRINT(test, "TSHttpParserCreate", "TestCase1", TC_PASS, "ok");
+
+  // Request
+  reqbufp = TSMBufferCreate();
+  req_hdr_loc = TSHttpHdrCreate(reqbufp);
+  start = req;
+  end = req + strlen(req) + 1;
+  if ((retval = TSHttpHdrParseReq(parser, reqbufp, req_hdr_loc, &start, end)) == TS_PARSE_ERROR) {
+    SDK_RPRINT(test, "TSHttpHdrParseReq", "TestCase1", TC_FAIL, "TSHttpHdrParseReq returns TS_PARSE_ERROR");
+  } else {
+    if (retval == TS_PARSE_DONE) {
+      test_passed_parse_req = true;
+    } else {
+      SDK_RPRINT(test, "TSHttpHdrParseReq", "TestCase1", TC_FAIL, "Parsing Error");
+    }
+  }
+
+  TSHttpParserClear(parser);
+  SDK_RPRINT(test, "TSHttpParserClear", "TestCase1", TC_PASS, "ok");
+  test_passed_parser_clear = true;
+
+  // Response
+  if (test_passed_parser_clear == true) {
+    respbufp = TSMBufferCreate();
+    resp_hdr_loc = TSHttpHdrCreate(respbufp);
+    start = resp;
+    end = resp + strlen(resp) + 1;
+    if ((retval = TSHttpHdrParseResp(parser, respbufp, resp_hdr_loc, &start, end)) == TS_PARSE_ERROR) {
+      SDK_RPRINT(test, "TSHttpHdrParseReq", "TestCase1", TC_FAIL,
+                 "TSHttpHdrParseReq returns TS_PARSE_ERROR. Maybe an error with TSHttpParserClear.");
+    } else {
+      if (retval == TS_PARSE_DONE) {
+        test_passed_parse_resp = true;
+      } else {
+        SDK_RPRINT(test, "TSHttpHdrParseResp", "TestCase1", TC_FAIL, "Parsing Error");
+      }
+    }
+  }
+
+  if (test_passed_parse_req == true) {
+    temp = convert_http_hdr_to_string(reqbufp, req_hdr_loc);
+    if (strcmp(req, temp) == 0) {
+      SDK_RPRINT(test, "TSHttpHdrParseReq", "TestCase1", TC_PASS, "ok");
+    } else {
+      SDK_RPRINT(test, "TSHttpHdrParseReq", "TestCase1", TC_FAIL, "Incorrect parsing");
+      test_passed_parse_req = false;
+    }
+    TSfree(temp);
+  }
+
+  if (test_passed_parse_resp == true) {
+    temp = convert_http_hdr_to_string(respbufp, resp_hdr_loc);
+    if (strcmp(resp, temp) == 0) {
+      SDK_RPRINT(test, "TSHttpHdrParseResp", "TestCase1", TC_PASS, "ok");
+    } else {
+      SDK_RPRINT(test, "TSHttpHdrParseResp", "TestCase1", TC_FAIL, "Incorrect parsing");
+      test_passed_parse_resp = false;
+    }
+    TSfree(temp);
+  }
+
+  TSHttpParserDestroy(parser);
+  SDK_RPRINT(test, "TSHttpParserDestroy", "TestCase1", TC_PASS, "ok");
+  test_passed_parser_destroy = true;
+
+  if ((test_passed_parse_req != true) ||
+      (test_passed_parse_resp != true) || (test_passed_parser_clear != true) || (test_passed_parser_destroy != true)) {
+    *pstatus = REGRESSION_TEST_FAILED;
+  } else {
+    *pstatus = REGRESSION_TEST_PASSED;
+  }
+
+  TSMimeHdrDestroy(reqbufp, req_hdr_loc);
+  TSHandleMLocRelease(reqbufp, TS_NULL_MLOC, req_hdr_loc);
+  TSMBufferDestroy(reqbufp);
+
+  if (resp_hdr_loc) {
+    TSMimeHdrDestroy(respbufp, resp_hdr_loc);
+    TSHandleMLocRelease(respbufp, TS_NULL_MLOC, resp_hdr_loc);
+  }
+
+  if (respbufp) {
+    TSMBufferDestroy(respbufp);
+  }
+
+  return;
+}
+
+
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSMimeHdrParse
+//
+// Unit Test for API: TSMimeHdrCopy
+//                    TSMimeHdrClone
+//                    TSMimeHdrFieldCopy
+//                    TSMimeHdrFieldClone
+//                    TSMimeHdrFieldCopyValues
+//                    TSMimeHdrFieldNextDup
+//                    TSMimeHdrFieldRemove
+//                    TSMimeHdrLengthGet
+//                    TSMimeHdrParse
+//                    TSMimeHdrPrint
+//                    TSMimeParserClear
+//                    TSMimeParserCreate
+//                    TSMimeParserDestroy
+//                    TSHandleMLocRelease
+//////////////////////////////////////////////
+
+static char *
+convert_mime_hdr_to_string(TSMBuffer bufp, TSMLoc hdr_loc)
+{
+  TSIOBuffer output_buffer;
+  TSIOBufferReader reader;
+  int64_t total_avail;
+
+  TSIOBufferBlock block;
+  const char *block_start;
+  int64_t block_avail;
+
+  char *output_string;
+  int output_len;
+
+  output_buffer = TSIOBufferCreate();
+
+  if (!output_buffer) {
+    TSError("couldn't allocate IOBuffer\n");
+  }
+
+  reader = TSIOBufferReaderAlloc(output_buffer);
+
+  /* This will print  just MIMEFields and not
+     the http request line */
+  TSMimeHdrPrint(bufp, hdr_loc, output_buffer);
+
+  /* Find out how the big the complete header is by
+     seeing the total bytes in the buffer.  We need to
+     look at the buffer rather than the first block to
+     see the size of the entire header */
+  total_avail = TSIOBufferReaderAvail(reader);
+
+  /* Allocate the string with an extra byte for the string
+     terminator */
+  output_string = (char *) TSmalloc(total_avail + 1);
+  output_len = 0;
+
+  /* We need to loop over all the buffer blocks to make
+     sure we get the complete header since the header can
+     be in multiple blocks */
+  block = TSIOBufferReaderStart(reader);
+  while (block) {
+
+    block_start = TSIOBufferBlockReadStart(block, reader, &block_avail);
+
+    /* We'll get a block pointer back even if there is no data
+       left to read so check for this condition and break out of
+       the loop. A block with no data to read means we've exhausted
+       buffer of data since if there was more data on a later
+       block in the chain, this block would have been skipped over */
+    if (block_avail == 0) {
+      break;
+    }
+
+    memcpy(output_string + output_len, block_start, block_avail);
+    output_len += block_avail;
+
+    /* Consume the data so that we get to the next block */
+    TSIOBufferReaderConsume(reader, block_avail);
+
+    /* Get the next block now that we've consumed the
+       data off the last block */
+    block = TSIOBufferReaderStart(reader);
+  }
+
+  /* Terminate the string */
+  output_string[output_len] = '\0';
+  output_len++;
+
+  /* Free up the TSIOBuffer that we used to print out the header */
+  TSIOBufferReaderFree(reader);
+  TSIOBufferDestroy(output_buffer);
+
+  return output_string;
+}
+
+TSReturnCode
+compare_field_values(RegressionTest * test, TSMBuffer bufp1, TSMLoc hdr_loc1, TSMLoc field_loc1, TSMBuffer bufp2,
+                     TSMLoc hdr_loc2, TSMLoc field_loc2)
+{
+  int no_of_values1;
+  int no_of_values2;
+  int i;
+
+  const char *str1 = NULL;
+  const char *str2 = NULL;
+
+  int length1 = 0;
+  int length2 = 0;
+
+  no_of_values1 = TSMimeHdrFieldValuesCount(bufp1, hdr_loc1, field_loc1);
+  no_of_values2 = TSMimeHdrFieldValuesCount(bufp2, hdr_loc2, field_loc2);
+  if (no_of_values1 != no_of_values2) {
+    SDK_RPRINT(test, "compare_field_values", "TestCase", TC_FAIL, "Field Values not equal");
+    return TS_ERROR;
+  }
+
+  for (i = 0; i < no_of_values1; i++) {
+    str1 = TSMimeHdrFieldValueStringGet(bufp1, hdr_loc1, field_loc1, i, &length1);
+    str2 = TSMimeHdrFieldValueStringGet(bufp2, hdr_loc2, field_loc2, i, &length2);
+    if (!((length1 == length2) && (strncmp(str1, str2, length1) == 0))) {
+      SDK_RPRINT(test, "compare_field_values", "TestCase", TC_FAIL, "Field Value %d differ from each other", i);
+      return TS_ERROR;
+    }
+  }
+
+  return TS_SUCCESS;
+}
+
+
+REGRESSION_TEST(SDK_API_TSMimeHdrParse) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  const char *parse_string =
+    "field1:field1Value1,field1Value2\r\nfield2:10,-34,45\r\nfield3:field3Value1,23\r\nfield2: 2345, field2Value2\r\n\r\n";
+  const char *DUPLICATE_FIELD_NAME = "field2";
+  const char *REMOVE_FIELD_NAME = "field3";
+
+  TSMimeParser parser;
+
+  TSMBuffer bufp1 = (TSMBuffer)NULL;
+  TSMBuffer bufp2 = (TSMBuffer)NULL;
+  TSMBuffer bufp3 = (TSMBuffer)NULL;
+
+  TSMLoc mime_hdr_loc1 = (TSMLoc)NULL;
+  TSMLoc mime_hdr_loc2 = (TSMLoc)NULL;
+  TSMLoc mime_hdr_loc3 = (TSMLoc)NULL;
+
+  TSMLoc field_loc1 = (TSMLoc)NULL;
+  TSMLoc field_loc2 = (TSMLoc)NULL;
+
+  const char *start;
+  const char *end;
+  char *temp;
+
+  TSParseResult retval;
+  int hdrLength;
+
+  bool test_passed_parser_create = false;
+  bool test_passed_parse = false;
+  bool test_passed_parser_clear = false;
+  bool test_passed_parser_destroy = false;
+  bool test_passed_mime_hdr_print = false;
+  bool test_passed_mime_hdr_length_get = false;
+  bool test_passed_mime_hdr_field_next_dup = false;
+  bool test_passed_mime_hdr_copy = false;
+  bool test_passed_mime_hdr_clone = false;
+  bool test_passed_mime_hdr_field_remove = false;
+  bool test_passed_mime_hdr_field_copy = false;
+  bool test_passed_mime_hdr_field_copy_values = false;
+  bool test_passed_handle_mloc_release = false;
+  bool test_passed_mime_hdr_field_find = false;
+
+  //Create Parser
+  parser = TSMimeParserCreate();
+  SDK_RPRINT(test, "TSMimeParserCreate", "TestCase1", TC_PASS, "ok");
+  test_passed_parser_create = true;
+
+  if (test_passed_parser_create == true) {
+    // Parsing
+    bufp1 = TSMBufferCreate();
+    if (TSMimeHdrCreate(bufp1, &mime_hdr_loc1) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrParse", "TestCase1", TC_FAIL, "Cannot create Mime hdr for parsing");
+      SDK_RPRINT(test, "TSMimeHdrPrint", "TestCase1", TC_FAIL, "Cannot run test as unable to create Mime Header for parsing");
+      SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_FAIL, "Cannot run test as unable to create Mime Header for parsing");
+
+      if (TSMBufferDestroy(bufp1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrParse", "TestCase1", TC_FAIL, "Error in Destroying MBuffer");
+      }
+    } else {
+      start = parse_string;
+      end = parse_string + strlen(parse_string) + 1;
+      if ((retval = TSMimeHdrParse(parser, bufp1, mime_hdr_loc1, &start, end)) == TS_PARSE_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrParse", "TestCase1", TC_FAIL, "TSMimeHdrParse returns TS_PARSE_ERROR");
+        SDK_RPRINT(test, "TSMimeHdrPrint", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrParse returned Error.");
+        SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrParse returned Error.");
+      } else {
+        if (retval == TS_PARSE_DONE) {
+          temp = convert_mime_hdr_to_string(bufp1, mime_hdr_loc1);    // Implements TSMimeHdrPrint.
+          if (strcmp(parse_string, temp) == 0) {
+            SDK_RPRINT(test, "TSMimeHdrParse", "TestCase1", TC_PASS, "ok");
+            SDK_RPRINT(test, "TSMimeHdrPrint", "TestCase1", TC_PASS, "ok");
+
+            // TSMimeHdrLengthGet
+            hdrLength = TSMimeHdrLengthGet(bufp1, mime_hdr_loc1);
+            if (hdrLength == (int) strlen(temp)) {
+              SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_PASS, "ok");
+              test_passed_mime_hdr_length_get = true;
+            } else {
+              SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+            }
+
+            test_passed_parse = true;
+            test_passed_mime_hdr_print = true;
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrParse|TSMimeHdrPrint", "TestCase1", TC_FAIL, "Incorrect parsing or incorrect Printing");
+            SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_FAIL,
+                       "Cannot run test as TSMimeHdrParse|TSMimeHdrPrint failed.");
+          }
+
+          TSfree(temp);
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrParse", "TestCase1", TC_FAIL, "Parsing Error");
+          SDK_RPRINT(test, "TSMimeHdrPrint", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrParse returned error.");
+          SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_FAIL, "Cannot run test as TSMimeHdrParse returned error.");
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrParse", "TestCase1", TC_FAIL, "Cannot run test as unable to create a parser");
+    SDK_RPRINT(test, "TSMimeHdrPrint", "TestCase1", TC_FAIL, "Cannot run test as unable to create a parser");
+    SDK_RPRINT(test, "TSMimeHdrLengthGet", "TestCase1", TC_FAIL, "Cannot run test as unable to create a parser");
+  }
+
+
+  // HOW DO I CHECK FOR PARSER CLEAR????
+  if (test_passed_parser_create == true) {
+    TSMimeParserClear(parser);
+    SDK_RPRINT(test, "TSMimeParserClear", "TestCase1", TC_PASS, "ok");
+    test_passed_parser_clear = true;
+  } else {
+    SDK_RPRINT(test, "TSMimeParserClear", "TestCase1", TC_FAIL, "Cannot run test as unable to create a parser");
+  }
+
+
+  if (test_passed_parser_create == true) {
+    TSMimeParserDestroy(parser);
+    SDK_RPRINT(test, "TSMimeParserDestroy", "TestCase1", TC_PASS, "ok");
+    test_passed_parser_destroy = true;
+  } else {
+    SDK_RPRINT(test, "TSMimeParserDestroy", "TestCase1", TC_FAIL, "Cannot run test as unable to create a parser");
+  }
+
+  //TSMimeHdrFieldNextDup
+  if (test_passed_parse == true) {
+    if ((field_loc1 = TSMimeHdrFieldFind(bufp1, mime_hdr_loc1, DUPLICATE_FIELD_NAME, -1)) == TS_NULL_MLOC) {
+      SDK_RPRINT(test, "TSMimeHdrFieldNextDup", "TestCase1", TC_FAIL, "TSMimeHdrFieldFind returns TS_NULL_MLOC");
+      SDK_RPRINT(test, "TSMimeHdrFieldFind", "TestCase1", TC_PASS, "TSMimeHdrFieldFind returns TS_NULL_MLOC");
+    } else {
+      const char *fieldName;
+      int length;
+
+      fieldName = TSMimeHdrFieldNameGet(bufp1, mime_hdr_loc1, field_loc1, &length);
+      if (strncmp(fieldName, DUPLICATE_FIELD_NAME, length) == 0) {
+        SDK_RPRINT(test, "TSMimeHdrFieldFind", "TestCase1", TC_PASS, "ok");
+        test_passed_mime_hdr_field_find = true;
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldFind", "TestCase1", TC_PASS, "TSMimeHdrFieldFind returns incorrect field pointer");
+      }
+
+      field_loc2 = TSMimeHdrFieldNextDup(bufp1, mime_hdr_loc1, field_loc1);
+      if (compare_field_names(test, bufp1, mime_hdr_loc1, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrFieldNextDup", "TestCase1", TC_FAIL, "Incorrect Pointer");
+      } else {
+        SDK_RPRINT(test, "TSMimeHdrFieldNextDup", "TestCase1", TC_PASS, "ok");
+        test_passed_mime_hdr_field_next_dup = true;
+      }
+
+      // TSHandleMLocRelease
+      if (TSHandleMLocRelease(bufp1, mime_hdr_loc1, field_loc1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase1", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+      } else {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase1", TC_PASS, "ok");
+        test_passed_handle_mloc_release = true;
+      }
+
+      if (field_loc2 != NULL) {
+        if (TSHandleMLocRelease(bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase2", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+          test_passed_handle_mloc_release = false;
+        } else {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase2", TC_PASS, "ok");
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase1", TC_FAIL, "Unable to run test as parsing failed.");
+  }
+
+  //TSMimeHdrCopy
+  if (test_passed_parse == true) {
+    // Parsing
+    bufp2 = TSMBufferCreate();
+    if (TSMimeHdrCreate(bufp2, &mime_hdr_loc2) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrCopy", "TestCase1", TC_FAIL, "Cannot create Mime hdr for copying");
+      if (TSMBufferDestroy(bufp2) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrCopy", "TestCase1", TC_FAIL, "Error in Destroying MBuffer");
+      }
+    } else {
+      if (TSMimeHdrCopy(bufp2, mime_hdr_loc2, bufp1, mime_hdr_loc1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSMimeHdrCopy", "TestCase1", TC_FAIL, "TSMimeHdrCopy returns TS_ERROR");
+      } else {
+        temp = convert_mime_hdr_to_string(bufp2, mime_hdr_loc2);      // Implements TSMimeHdrPrint.
+        if (strcmp(parse_string, temp) == 0) {
+          SDK_RPRINT(test, "TSMimeHdrCopy", "TestCase1", TC_PASS, "ok");
+          test_passed_mime_hdr_copy = true;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrCopy", "TestCase1", TC_FAIL, "Value's Mismatch");
+        }
+        TSfree(temp);
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrCopy", "TestCase1", TC_FAIL, "Unable to run test as parsing failed.");
+  }
+
+  bufp3 = TSMBufferCreate();
+  TSMimeHdrCreate(bufp3, &mime_hdr_loc3);
+  test_passed_mime_hdr_clone = true;
+
+  // TSMimeHdrFieldRemove
+  if (test_passed_mime_hdr_copy == true) {
+    if ((field_loc1 = TSMimeHdrFieldFind(bufp2, mime_hdr_loc2, REMOVE_FIELD_NAME, -1)) == TS_NULL_MLOC) {
+      SDK_RPRINT(test, "TSMimeHdrFieldRemove", "TestCase1", TC_FAIL, "TSMimeHdrFieldFind returns TS_NULL_MLOC");
+    } else {
+      if (TSMimeHdrFieldRemove(bufp2, mime_hdr_loc2, field_loc1) != TS_SUCCESS) {
+        SDK_RPRINT(test, "TSMimeHdrFieldRemove", "TestCase1", TC_FAIL, "TSMimeHdrFieldRemove returns TS_ERROR");
+      } else {
+        // Make sure the remove actually took effect
+        field_loc2 = TSMimeHdrFieldFind(bufp2, mime_hdr_loc2, REMOVE_FIELD_NAME, -1);
+        if ((field_loc2 == TS_NULL_MLOC) || (field_loc1 != field_loc2)) {
+          test_passed_mime_hdr_field_remove = true;
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldRemove", "TestCase1", TC_FAIL, "Field Not Removed");
+        }
+
+        if (test_passed_mime_hdr_field_remove == true) {
+          if (TSMimeHdrFieldAppend(bufp2, mime_hdr_loc2, field_loc1) != TS_SUCCESS) {
+            SDK_RPRINT(test, "TSMimeHdrFieldRemove", "TestCase1", TC_FAIL,
+                       "Unable to readd the field to mime header. Probably destroyed");
+            test_passed_mime_hdr_field_remove = false;
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldRemove", "TestCase1", TC_PASS, "ok");
+          }
+        }
+      }
+
+      // TSHandleMLocRelease
+      if (TSHandleMLocRelease(bufp2, mime_hdr_loc2, field_loc1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase3", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+        test_passed_handle_mloc_release = false;
+      } else {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase3", TC_PASS, "ok");
+      }
+
+      if (field_loc2 != NULL) {
+        if (TSHandleMLocRelease(bufp2, mime_hdr_loc2, field_loc2) == TS_ERROR) {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase4", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+          test_passed_handle_mloc_release = false;
+        } else {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase4", TC_PASS, "ok");
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldNext", "TestCase1", TC_FAIL, "Unable to run test as parsing failed.");
+  }
+
+  // TSMimeHdrFieldCopy
+  if (test_passed_mime_hdr_copy == true) {
+    if (TSMimeHdrFieldCreate(bufp2, mime_hdr_loc2, &field_loc1) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_FAIL, "Unable to create field for Copying");
+    } else {
+      if ((field_loc2 = TSMimeHdrFieldGet(bufp1, mime_hdr_loc1, 0)) == TS_NULL_MLOC) {
+        SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_FAIL, "Unable to get source field for copying");
+      } else {
+        if (TSMimeHdrFieldCopy(bufp2, mime_hdr_loc2, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_FAIL, "TSMimeHdrFieldCopy returns TS_ERROR");
+        } else {
+          if ((compare_field_names(test, bufp2, mime_hdr_loc2, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) ||
+              (compare_field_values(test, bufp2, mime_hdr_loc2, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR)) {
+            SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_FAIL, "Value's Mismatch");
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_PASS, "ok");
+            test_passed_mime_hdr_field_copy = true;
+          }
+        }
+      }
+      if (TSHandleMLocRelease(bufp2, mime_hdr_loc2, field_loc1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase5", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+        test_passed_handle_mloc_release = false;
+      } else {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase5", TC_PASS, "ok");
+      }
+
+      if (field_loc2 != NULL) {
+        if (TSHandleMLocRelease(bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase6", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+          test_passed_handle_mloc_release = false;
+        } else {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase6", TC_PASS, "ok");
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_FAIL, "Unable to run test as bufp2 might not have been created");
+  }
+
+  // TSMimeHdrFieldClone
+  if (test_passed_mime_hdr_clone == true) {
+    field_loc1 = NULL;
+    field_loc2 = NULL;
+    if ((field_loc2 = TSMimeHdrFieldGet(bufp1, mime_hdr_loc1, 0)) == TS_NULL_MLOC) {
+      SDK_RPRINT(test, "TSMimeHdrFieldClone", "TestCase1", TC_FAIL, "Unable to get source field for copying");
+    } else {
+      if (TSMimeHdrFieldClone(bufp3, mime_hdr_loc3, bufp1, mime_hdr_loc1, field_loc2, &field_loc1) != TS_SUCCESS) {
+        SDK_RPRINT(test, "TSMimeHdrFieldClone", "TestCase1", TC_FAIL, "TSMimeHdrFieldClone returns TS_ERROR");
+      } else {
+        if ((compare_field_names(test, bufp3, mime_hdr_loc3, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) ||
+            (compare_field_values(test, bufp3, mime_hdr_loc3, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR)) {
+          SDK_RPRINT(test, "TSMimeHdrFieldClone", "TestCase1", TC_FAIL, "Value's Mismatch");
+        } else {
+          SDK_RPRINT(test, "TSMimeHdrFieldClone", "TestCase1", TC_PASS, "ok");
+        }
+      }
+    }
+    if (field_loc1 != NULL) {
+      if (TSHandleMLocRelease(bufp3, mime_hdr_loc3, field_loc1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase7", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+        test_passed_handle_mloc_release = false;
+      } else {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase7", TC_PASS, "ok");
+      }
+    }
+
+    if (field_loc2 != NULL) {
+      if (TSHandleMLocRelease(bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase8", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+        test_passed_handle_mloc_release = false;
+      } else {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase8", TC_PASS, "ok");
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldClone", "TestCase1", TC_FAIL, "Unable to run test as bufp3 might not have been created");
+  }
+
+  // TSMimeHdrFieldCopyValues
+  if (test_passed_mime_hdr_copy == true) {
+    if (TSMimeHdrFieldCreate(bufp2, mime_hdr_loc2, &field_loc1) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSMimeHdrFieldCopyValues", "TestCase1", TC_FAIL, "Unable to create field for Copying");
+    } else {
+      if ((field_loc2 = TSMimeHdrFieldGet(bufp1, mime_hdr_loc1, 0)) == TS_NULL_MLOC) {
+        SDK_RPRINT(test, "TSMimeHdrFieldCopyValues", "TestCase1", TC_FAIL, "Unable to get source field for copying");
+      } else {
+        if (TSMimeHdrFieldCopyValues(bufp2, mime_hdr_loc2, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+          SDK_RPRINT(test, "TSMimeHdrFieldCopyValues", "TestCase1", TC_FAIL, "TSMimeHdrFieldCopy returns TS_ERROR");
+        } else {
+          if (compare_field_values(test, bufp2, mime_hdr_loc2, field_loc1, bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+            SDK_RPRINT(test, "TSMimeHdrFieldCopyValues", "TestCase1", TC_FAIL, "Value's Mismatch");
+          } else {
+            SDK_RPRINT(test, "TSMimeHdrFieldCopyValues", "TestCase1", TC_PASS, "ok");
+            test_passed_mime_hdr_field_copy_values = true;
+          }
+        }
+      }
+      if (TSHandleMLocRelease(bufp2, mime_hdr_loc2, field_loc1) == TS_ERROR) {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase9", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+        test_passed_handle_mloc_release = false;
+      } else {
+        SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase9", TC_PASS, "ok");
+      }
+
+      if (field_loc2 != NULL) {
+        if (TSHandleMLocRelease(bufp1, mime_hdr_loc1, field_loc2) == TS_ERROR) {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase10", TC_FAIL, "TSHandleMLocRelease returns TS_ERROR");
+          test_passed_handle_mloc_release = false;
+        } else {
+          SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase10", TC_PASS, "ok");
+        }
+      }
+    }
+  } else {
+    SDK_RPRINT(test, "TSMimeHdrFieldCopy", "TestCase1", TC_FAIL, "Unable to run test as bufp2 might not have been created");
+  }
+
+  if ((TSMimeHdrDestroy(bufp1, mime_hdr_loc1) == TS_ERROR) ||
+      (TSMimeHdrDestroy(bufp2, mime_hdr_loc2) == TS_ERROR) || (TSMimeHdrDestroy(bufp3, mime_hdr_loc3) == TS_ERROR)) {
+    SDK_RPRINT(test, "", "TestCase", TC_FAIL, "TSMimeHdrDestroy returns TS_ERROR");
+  }
+
+  if (TSHandleMLocRelease(bufp1, TS_NULL_MLOC, mime_hdr_loc1) == TS_ERROR) {
+    SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase11|12|13", TC_FAIL, "Unable to release mime_hdr_loc1 to Mime Hdrs");
+    test_passed_handle_mloc_release = false;
+  }
+
+  if (TSHandleMLocRelease(bufp2, TS_NULL_MLOC, mime_hdr_loc2) == TS_ERROR) {
+    SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase11|12|13", TC_FAIL, "Unable to release mime_hdr_loc2 to Mime Hdrs");
+    test_passed_handle_mloc_release = false;
+  }
+
+  if (TSHandleMLocRelease(bufp3, TS_NULL_MLOC, mime_hdr_loc3) == TS_ERROR) {
+    SDK_RPRINT(test, "TSHandleMLocRelease", "TestCase11|12|13", TC_FAIL, "Unable to release mime_hdr_loc3 to Mime Hdrs");
+    test_passed_handle_mloc_release = false;
+  }
+
+  if (TSMBufferDestroy(bufp1) == TS_ERROR) {
+    SDK_RPRINT(test, "", "TestCase", TC_FAIL, "TSMBufferDestroy(bufp1) returns TS_ERROR");
+  }
+
+  if (TSMBufferDestroy(bufp2) == TS_ERROR) {
+    SDK_RPRINT(test, "", "TestCase", TC_FAIL, "TSMBufferDestroy(bufp2) returns TS_ERROR");
+  }
+
+  if (TSMBufferDestroy(bufp3) == TS_ERROR) {
+    SDK_RPRINT(test, "", "TestCase", TC_FAIL, "TSMBufferDestroy(bufp3) returns TS_ERROR");
+  }
+
+  if ((test_passed_parser_create != true) ||
+      (test_passed_parse != true) ||
+      (test_passed_parser_clear != true) ||
+      (test_passed_parser_destroy != true) ||
+      (test_passed_mime_hdr_print != true) ||
+      (test_passed_mime_hdr_length_get != true) ||
+      (test_passed_mime_hdr_field_next_dup != true) ||
+      (test_passed_mime_hdr_copy != true) ||
+      (test_passed_mime_hdr_clone != true) ||
+      (test_passed_mime_hdr_field_remove != true) ||
+      (test_passed_mime_hdr_field_copy != true) ||
+      (test_passed_mime_hdr_field_copy_values != true) ||
+      (test_passed_handle_mloc_release != true) ||
+      (test_passed_mime_hdr_field_find != true)) {
+    *pstatus = REGRESSION_TEST_FAILED;
+  } else {
+    *pstatus = REGRESSION_TEST_PASSED;
+  }
+
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSUrlParse
+//
+// Unit Test for API: TSUrlParse
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSUrlParse) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  static char const * const urls[] = {
+      "file:///test.dat;ab?abc=def#abc",
+      "http://www.example.com",
+      "http://abc:def@www.example.com",
+      "http://www.example.com:3426",
+      "http://abc:def@www.example.com:3426",
+      "http://www.example.com/homepage.cgi",
+      "http://www.example.com/homepage.cgi;ab?abc=def#abc",
+      "http://abc:def@www.example.com:3426/homepage.cgi;ab?abc=def#abc",
+      "https://abc:def@www.example.com:3426/homepage.cgi;ab?abc=def#abc",
+      "ftp://abc:def@www.example.com:3426/homepage.cgi;ab?abc=def#abc",
+      "file:///c:/test.dat;ab?abc=def#abc", // Note: file://c: is malformed URL because no host is present.
+      "file:///test.dat;ab?abc=def#abc",
+      "foo://bar.com/baz/",
+      "http://a.b.com/xx.jpg?newpath=http://b.c.com" // https://issues.apache.org/jira/browse/TS-1635
+  };
+
+  static int const num_urls = sizeof(urls) / sizeof(urls[0]);
+  bool test_passed[num_urls] = {false};
+
+
+  const char *start;
+  const char *end;
+  char *temp;
+
+  int retval;
+
+  TSMBuffer bufp;
+  TSMLoc url_loc = (TSMLoc)NULL;
+  int length;
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+
+  int idx;
+  for (idx = 0; idx < num_urls; idx++) {
+    char const *url = urls[idx];
+
+    bufp = TSMBufferCreate();
+    if (TSUrlCreate(bufp, &url_loc) != TS_SUCCESS) {
+      SDK_RPRINT(test, "TSUrlParse", url, TC_FAIL, "Cannot create Url for parsing the url");
+      if (TSMBufferDestroy(bufp) == TS_ERROR) {
+        SDK_RPRINT(test, "TSUrlParse", url, TC_FAIL, "Error in Destroying MBuffer");
+      }
+    } else {
+      start = url;
+      end = url + strlen(url) + 1;
+      if ((retval = TSUrlParse(bufp, url_loc, &start, end)) == TS_PARSE_ERROR) {
+        SDK_RPRINT(test, "TSUrlParse", url, TC_FAIL, "TSUrlParse returns TS_PARSE_ERROR");
+      } else {
+        if (retval == TS_PARSE_DONE) {
+          temp = TSUrlStringGet(bufp, url_loc, &length);
+          if (strncmp(url, temp, length) == 0) {
+            SDK_RPRINT(test, "TSUrlParse", url, TC_PASS, "ok");
+            test_passed[idx] = true;
+          } else {
+            SDK_RPRINT(test, "TSUrlParse", url, TC_FAIL, "Value's Mismatch");
+          }
+          TSfree(temp);
+        } else {
+          SDK_RPRINT(test, "TSUrlParse", url, TC_FAIL, "Parsing Error");
+        }
+      }
+    }
+
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, url_loc);
+    TSMBufferDestroy(bufp);
+  }
+
+  for (idx = 0; idx < num_urls; idx++) {
+    if (test_passed[idx] != true) {
+      *pstatus = REGRESSION_TEST_FAILED;
+      break;
+    }
+  }
+
+  if (idx >= num_urls) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  }
+
+
+  return;
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSTextLog
+//
+// Unit Test for APIs: TSTextLogObjectCreate
+//                     TSTextLogObjectWrite
+//                     TSTextLogObjectDestroy
+//                     TSTextLogObjectFlush
+//////////////////////////////////////////////
+#define LOG_TEST_PATTERN "SDK team rocks"
+
+typedef struct
+{
+  RegressionTest *test;
+  int *pstatus;
+  char *fullpath_logname;
+  unsigned long magic;
+  TSTextLogObject log;
+} LogTestData;
+
+
+static int
+log_test_handler(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  TSFile filep;
+  char buf[1024];
+  bool str_found;
+  int retVal = 0;
+
+  TSAssert(event == TS_EVENT_TIMEOUT);
+
+  LogTestData *data = (LogTestData *) TSContDataGet(contp);
+  TSAssert(data->magic == MAGIC_ALIVE);
+
+  // Verify content was correctly written into log file
+
+  if ((filep = TSfopen(data->fullpath_logname, "r")) == NULL) {
+    SDK_RPRINT(data->test, "TSTextLogObject", "TestCase1", TC_FAIL, "can not open log file %s", data->fullpath_logname);
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    return -1;
+  } else {
+    // The logfile is created
+    str_found = false;
+    while (TSfgets(filep, buf, 1024) != NULL) {
+      if (strstr(buf, LOG_TEST_PATTERN) != NULL) {
+        str_found = true;
+        break;
+      }
+    }
+    TSfclose(filep);
+    if (str_found == false) {
+      SDK_RPRINT(data->test, "TSTextLogObject", "TestCase1", TC_FAIL, "can not find pattern %s in log file", LOG_TEST_PATTERN);
+      *(data->pstatus) = REGRESSION_TEST_FAILED;
+      return -1;
+    }
+  }
+
+  retVal = TSTextLogObjectDestroy(data->log);
+  if (retVal != TS_SUCCESS) {
+    SDK_RPRINT(data->test, "TSTextLogObjectDestroy", "TestCase1", TC_FAIL, "can not destroy log object");
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    return -1;
+  } else {
+    SDK_RPRINT(data->test, "TSTextLogObjectDestroy", "TestCase1", TC_PASS, "ok");
+  }
+
+  *(data->pstatus) = REGRESSION_TEST_PASSED;
+  SDK_RPRINT(data->test, "TSTextLogObject", "TestCase1", TC_PASS, "ok");
+
+
+  // figure out the matainfo file for cleanup.
+  // code from MetaInfo::_build_name(const char *filename)
+  int i = -1, l = 0;
+  char c;
+  while (c = data->fullpath_logname[l], c != 0) {
+    if (c == '/') {
+      i = l;
+    }
+    ++l;
+  }
+
+  // 7 = 1 (dot at beginning) + 5 (".meta") + 1 (null terminating)
+  //
+  char *meta_filename = (char *)ats_malloc(l + 7);
+
+  if (i < 0) {
+    ink_string_concatenate_strings(meta_filename, ".", data->fullpath_logname, ".meta", NULL);
+  } else {
+    memcpy(meta_filename, data->fullpath_logname, i + 1);
+    ink_string_concatenate_strings(&meta_filename[i + 1], ".", &data->fullpath_logname[i + 1]
+                                   , ".meta", NULL);
+  }
+
+  unlink(data->fullpath_logname);
+  unlink(meta_filename);
+  TSfree(data->fullpath_logname);
+  TSfree(meta_filename);
+  meta_filename = NULL;
+
+  data->magic = MAGIC_DEAD;
+  TSfree(data);
+  data = NULL;
+
+  return -1;
+}
+
+REGRESSION_TEST(SDK_API_TSTextLog) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSTextLogObject log;
+  TSReturnCode retVal;
+
+  char logname[PATH_NAME_MAX];
+  char fullpath_logname[PATH_NAME_MAX];
+
+  /* Generate a random log file name, so if we run the test several times, we won't use the
+     same log file name. */
+  xptr<char> tmp(RecConfigReadLogDir());
+  snprintf(logname, sizeof(logname), "RegressionTestLog%d.log", (int) getpid());
+  snprintf(fullpath_logname, sizeof(fullpath_logname), "%s/%s", (const char *)tmp, logname);
+
+  unlink(fullpath_logname);
+  retVal = TSTextLogObjectCreate(logname, TS_LOG_MODE_ADD_TIMESTAMP, &log);
+  if (retVal != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSTextLogObjectCreate", "TestCase1", TC_FAIL, "can not create log object");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  } else {
+    SDK_RPRINT(test, "TSTextLogObjectCreate", "TestCase1", TC_PASS, "ok");
+  }
+
+  retVal = TSTextLogObjectWrite(log, (char*)LOG_TEST_PATTERN);
+  if (retVal != TS_SUCCESS) {
+    SDK_RPRINT(test, "TSTextLogObjectWrite", "TestCase1", TC_FAIL, "can not write to log object");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  } else {
+    SDK_RPRINT(test, "TSTextLogObjectWrite", "TestCase1", TC_PASS, "ok");
+  }
+
+  TSTextLogObjectFlush(log);
+  SDK_RPRINT(test, "TSTextLogObjectFlush", "TestCase1", TC_PASS, "ok");
+
+  TSCont log_test_cont = TSContCreate(log_test_handler, TSMutexCreate());
+  LogTestData *data = (LogTestData *) TSmalloc(sizeof(LogTestData));
+  data->test = test;
+  data->pstatus = pstatus;
+  data->fullpath_logname = TSstrdup(fullpath_logname);
+  data->magic = MAGIC_ALIVE;
+  data->log = log;
+  TSContDataSet(log_test_cont, data);
+
+  TSContSchedule(log_test_cont, 6000, TS_THREAD_POOL_DEFAULT);
+  return;
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSMgmtGet
+//
+// Unit Test for APIs: TSMgmtCounterGet
+//                     TSMgmtFloatGet
+//                     TSMgmtIntGet
+//                     TSMgmtStringGet
+//////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_TSMgmtGet) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  const char *CONFIG_PARAM_COUNTER_NAME = "proxy.process.http.total_parent_proxy_connections";
+  int CONFIG_PARAM_COUNTER_VALUE = 0;
+
+  const char *CONFIG_PARAM_FLOAT_NAME = "proxy.config.http.background_fill_completed_threshold";
+  float CONFIG_PARAM_FLOAT_VALUE = 0.0;
+
+  const char *CONFIG_PARAM_INT_NAME = "proxy.config.http.cache.http";
+  int CONFIG_PARAM_INT_VALUE = 1;
+
+  const char *CONFIG_PARAM_STRING_NAME = "proxy.config.product_name";
+  const char *CONFIG_PARAM_STRING_VALUE = "Traffic Server";
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  int err = 0;
+  TSMgmtCounter cvalue = 0;
+  TSMgmtFloat fvalue = 0.0;
+  TSMgmtInt ivalue = -1;
+  TSMgmtString svalue = NULL;
+
+  if (TS_SUCCESS != TSMgmtCounterGet(CONFIG_PARAM_COUNTER_NAME, &cvalue)) {
+    SDK_RPRINT(test, "TSMgmtCounterGet", "TestCase1.1", TC_FAIL, "can not get value of param %s", CONFIG_PARAM_COUNTER_NAME);
+    err = 1;
+  } else if (cvalue != CONFIG_PARAM_COUNTER_VALUE) {
+    SDK_RPRINT(test, "TSMgmtCounterGet", "TestCase1.1", TC_FAIL,
+               "got incorrect value of param %s, should have been %d, found %d", CONFIG_PARAM_COUNTER_NAME,
+               CONFIG_PARAM_COUNTER_VALUE, cvalue);
+    err = 1;
+  } else {
+    SDK_RPRINT(test, "TSMgmtCounterGet", "TestCase1.1", TC_PASS, "ok");
+  }
+
+  if ((TS_SUCCESS != TSMgmtFloatGet(CONFIG_PARAM_FLOAT_NAME, &fvalue)) || (fvalue != CONFIG_PARAM_FLOAT_VALUE)) {
+    SDK_RPRINT(test, "TSMgmtFloatGet", "TestCase2", TC_FAIL, "can not get value of param %s", CONFIG_PARAM_FLOAT_NAME);
+    err = 1;
+  } else {
+    SDK_RPRINT(test, "TSMgmtFloatGet", "TestCase1.2", TC_PASS, "ok");
+  }
+
+  if ((TSMgmtIntGet(CONFIG_PARAM_INT_NAME, &ivalue) != TS_SUCCESS) || (ivalue != CONFIG_PARAM_INT_VALUE)) {
+    SDK_RPRINT(test, "TSMgmtIntGet", "TestCase1.3", TC_FAIL, "can not get value of param %s", CONFIG_PARAM_INT_NAME);
+    err = 1;
+  } else {
+    SDK_RPRINT(test, "TSMgmtIntGet", "TestCase1.3", TC_PASS, "ok");
+  }
+
+  if (TS_SUCCESS != TSMgmtStringGet(CONFIG_PARAM_STRING_NAME, &svalue)) {
+    SDK_RPRINT(test, "TSMgmtStringGet", "TestCase1.4", TC_FAIL, "can not get value of param %s", CONFIG_PARAM_STRING_NAME);
+    err = 1;
+  } else if (strcmp(svalue, CONFIG_PARAM_STRING_VALUE) != 0) {
+    SDK_RPRINT(test, "TSMgmtStringGet", "TestCase1.4", TC_FAIL,
+               "got incorrect value of param %s, should have been \"%s\", found \"%s\"", CONFIG_PARAM_STRING_NAME,
+               CONFIG_PARAM_STRING_VALUE, svalue);
+    err = 1;
+  } else {
+    SDK_RPRINT(test, "TSMgmtStringGet", "TestCase1.4", TC_PASS, "ok");
+  }
+
+  if (err) {
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  *pstatus = REGRESSION_TEST_PASSED;
+  SDK_RPRINT(test, "TSMgmtGet", "TestCase1", TC_PASS, "ok");
+  return;
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSConstant
+//
+// Unit Test for APIs: All TS_XXX constants
+//
+//////////////////////////////////////////////
+
+#define PRINT_DIFF( _x ) \
+{ \
+      if ( _x - ORIG_##_x != 0) { \
+          test_passed = false; \
+          SDK_RPRINT (test, "##_x", "TestCase1", TC_FAIL, \
+		      "%s:Original Value = %d; New Value = %d \n", #_x,_x, ORIG_##_x); \
+      } \
+}
+
+
+typedef enum
+{
+  ORIG_TS_PARSE_ERROR = -1,
+  ORIG_TS_PARSE_DONE = 0,
+  ORIG_TS_PARSE_OK = 1,
+  ORIG_TS_PARSE_CONT = 2
+} ORIG_TSParseResult;
+
+typedef enum
+{
+  ORIG_TS_HTTP_TYPE_UNKNOWN,
+  ORIG_TS_HTTP_TYPE_REQUEST,
+  ORIG_TS_HTTP_TYPE_RESPONSE
+} ORIG_TSHttpType;
+
+typedef enum
+{
+  ORIG_TS_HTTP_STATUS_NONE = 0,
+
+  ORIG_TS_HTTP_STATUS_CONTINUE = 100,
+  ORIG_TS_HTTP_STATUS_SWITCHING_PROTOCOL = 101,
+
+  ORIG_TS_HTTP_STATUS_OK = 200,
+  ORIG_TS_HTTP_STATUS_CREATED = 201,
+  ORIG_TS_HTTP_STATUS_ACCEPTED = 202,
+  ORIG_TS_HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
+  ORIG_TS_HTTP_STATUS_NO_CONTENT = 204,
+  ORIG_TS_HTTP_STATUS_RESET_CONTENT = 205,
+  ORIG_TS_HTTP_STATUS_PARTIAL_CONTENT = 206,
+
+  ORIG_TS_HTTP_STATUS_MULTIPLE_CHOICES = 300,
+  ORIG_TS_HTTP_STATUS_MOVED_PERMANENTLY = 301,
+  ORIG_TS_HTTP_STATUS_MOVED_TEMPORARILY = 302,
+  ORIG_TS_HTTP_STATUS_SEE_OTHER = 303,
+  ORIG_TS_HTTP_STATUS_NOT_MODIFIED = 304,
+  ORIG_TS_HTTP_STATUS_USE_PROXY = 305,
+
+  ORIG_TS_HTTP_STATUS_BAD_REQUEST = 400,
+  ORIG_TS_HTTP_STATUS_UNAUTHORIZED = 401,
+  ORIG_TS_HTTP_STATUS_PAYMENT_REQUIRED = 402,
+  ORIG_TS_HTTP_STATUS_FORBIDDEN = 403,
+  ORIG_TS_HTTP_STATUS_NOT_FOUND = 404,
+  ORIG_TS_HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
+  ORIG_TS_HTTP_STATUS_NOT_ACCEPTABLE = 406,
+  ORIG_TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
+  ORIG_TS_HTTP_STATUS_REQUEST_TIMEOUT = 408,
+  ORIG_TS_HTTP_STATUS_CONFLICT = 409,
+  ORIG_TS_HTTP_STATUS_GONE = 410,
+  ORIG_TS_HTTP_STATUS_LENGTH_REQUIRED = 411,
+  ORIG_TS_HTTP_STATUS_PRECONDITION_FAILED = 412,
+  ORIG_TS_HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
+  ORIG_TS_HTTP_STATUS_REQUEST_URI_TOO_LONG = 414,
+  ORIG_TS_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
+
+  ORIG_TS_HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
+  ORIG_TS_HTTP_STATUS_NOT_IMPLEMENTED = 501,
+  ORIG_TS_HTTP_STATUS_BAD_GATEWAY = 502,
+  ORIG_TS_HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
+  ORIG_TS_HTTP_STATUS_GATEWAY_TIMEOUT = 504,
+  ORIG_TS_HTTP_STATUS_HTTPVER_NOT_SUPPORTED = 505
+} ORIG_TSHttpStatus;
+
+typedef enum
+{
+  ORIG_TS_HTTP_READ_REQUEST_HDR_HOOK,
+  ORIG_TS_HTTP_OS_DNS_HOOK,
+  ORIG_TS_HTTP_SEND_REQUEST_HDR_HOOK,
+  ORIG_TS_HTTP_READ_CACHE_HDR_HOOK,
+  ORIG_TS_HTTP_READ_RESPONSE_HDR_HOOK,
+  ORIG_TS_HTTP_SEND_RESPONSE_HDR_HOOK,
+  ORIG_TS_HTTP_REQUEST_TRANSFORM_HOOK,
+  ORIG_TS_HTTP_RESPONSE_TRANSFORM_HOOK,
+  ORIG_TS_HTTP_SELECT_ALT_HOOK,
+  ORIG_TS_HTTP_TXN_START_HOOK,
+  ORIG_TS_HTTP_TXN_CLOSE_HOOK,
+  ORIG_TS_HTTP_SSN_START_HOOK,
+  ORIG_TS_HTTP_SSN_CLOSE_HOOK,
+  ORIG_TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK,
+  ORIG_TS_HTTP_PRE_REMAP_HOOK,
+  ORIG_TS_HTTP_POST_REMAP_HOOK,
+  ORIG_TS_HTTP_RESPONSE_CLIENT_HOOK,
+  ORIG_TS_HTTP_LAST_HOOK
+} ORIG_TSHttpHookID;
+
+typedef enum
+{
+  ORIG_TS_EVENT_NONE = 0,
+  ORIG_TS_EVENT_IMMEDIATE = 1,
+  ORIG_TS_EVENT_TIMEOUT = 2,
+  ORIG_TS_EVENT_ERROR = 3,
+  ORIG_TS_EVENT_CONTINUE = 4,
+
+  ORIG_TS_EVENT_VCONN_READ_READY = 100,
+  ORIG_TS_EVENT_VCONN_WRITE_READY = 101,
+  ORIG_TS_EVENT_VCONN_READ_COMPLETE = 102,
+  ORIG_TS_EVENT_VCONN_WRITE_COMPLETE = 103,
+  ORIG_TS_EVENT_VCONN_EOS = 104,
+
+  ORIG_TS_EVENT_NET_CONNECT = 200,
+  ORIG_TS_EVENT_NET_CONNECT_FAILED = 201,
+  ORIG_TS_EVENT_NET_ACCEPT = 202,
+  ORIG_TS_EVENT_NET_ACCEPT_FAILED = 204,
+
+  ORIG_TS_EVENT_HOST_LOOKUP = 500,
+
+  ORIG_TS_EVENT_CACHE_OPEN_READ = 1102,
+  ORIG_TS_EVENT_CACHE_OPEN_READ_FAILED = 1103,
+  ORIG_TS_EVENT_CACHE_OPEN_WRITE = 1108,
+  ORIG_TS_EVENT_CACHE_OPEN_WRITE_FAILED = 1109,
+  ORIG_TS_EVENT_CACHE_REMOVE = 1112,
+  ORIG_TS_EVENT_CACHE_REMOVE_FAILED = 1113,
+  ORIG_TS_EVENT_CACHE_SCAN = 1120,
+  ORIG_TS_EVENT_CACHE_SCAN_FAILED = 1121,
+  ORIG_TS_EVENT_CACHE_SCAN_OBJECT = 1122,
+  ORIG_TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED = 1123,
+  ORIG_TS_EVENT_CACHE_SCAN_OPERATION_FAILED = 1124,
+  ORIG_TS_EVENT_CACHE_SCAN_DONE = 1125,
+
+  ORIG_TS_EVENT_HTTP_CONTINUE = 60000,
+  ORIG_TS_EVENT_HTTP_ERROR = 60001,
+  ORIG_TS_EVENT_HTTP_READ_REQUEST_HDR = 60002,
+  ORIG_TS_EVENT_HTTP_OS_DNS = 60003,
+  ORIG_TS_EVENT_HTTP_SEND_REQUEST_HDR = 60004,
+  ORIG_TS_EVENT_HTTP_READ_CACHE_HDR = 60005,
+  ORIG_TS_EVENT_HTTP_READ_RESPONSE_HDR = 60006,
+  ORIG_TS_EVENT_HTTP_SEND_RESPONSE_HDR = 60007,
+  ORIG_TS_EVENT_HTTP_REQUEST_TRANSFORM = 60008,
+  ORIG_TS_EVENT_HTTP_RESPONSE_TRANSFORM = 60009,
+  ORIG_TS_EVENT_HTTP_SELECT_ALT = 60010,
+  ORIG_TS_EVENT_HTTP_TXN_START = 60011,
+  ORIG_TS_EVENT_HTTP_TXN_CLOSE = 60012,
+  ORIG_TS_EVENT_HTTP_SSN_START = 60013,
+  ORIG_TS_EVENT_HTTP_SSN_CLOSE = 60014,
+  ORIG_TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE = 60015,
+
+  ORIG_TS_EVENT_MGMT_UPDATE = 60100
+} ORIG_TSEvent;
+
+typedef enum
+{
+  ORIG_TS_CACHE_LOOKUP_MISS,
+  ORIG_TS_CACHE_LOOKUP_HIT_STALE,
+  ORIG_TS_CACHE_LOOKUP_HIT_FRESH
+} ORIG_TSCacheLookupResult;
+
+typedef enum
+{
+  ORIG_TS_CACHE_DATA_TYPE_NONE,
+  ORIG_TS_CACHE_DATA_TYPE_HTTP,
+  ORIG_TS_CACHE_DATA_TYPE_OTHER
+} ORIG_TSCacheDataType;
+
+typedef enum
+{
+  ORIG_TS_CACHE_ERROR_NO_DOC = -20400,
+  ORIG_TS_CACHE_ERROR_DOC_BUSY = -20401,
+  ORIG_TS_CACHE_ERROR_NOT_READY = -20407
+} ORIG_TSCacheError;
+
+typedef enum
+{
+  ORIG_TS_CACHE_SCAN_RESULT_DONE = 0,
+  ORIG_TS_CACHE_SCAN_RESULT_CONTINUE = 1,
+  ORIG_TS_CACHE_SCAN_RESULT_DELETE = 10,
+  ORIG_TS_CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES,
+  ORIG_TS_CACHE_SCAN_RESULT_UPDATE,
+  ORIG_TS_CACHE_SCAN_RESULT_RETRY
+} ORIG_TSCacheScanResult;
+
+typedef enum
+{
+  ORIG_TS_VC_CLOSE_ABORT = -1,
+  ORIG_TS_VC_CLOSE_NORMAL = 1
+} ORIG_TSVConnCloseFlags;
+
+typedef enum
+{
+  ORIG_TS_SDK_VERSION_2_0 = 0,
+  ORIG_TS_SDK_VERSION_3_0
+} ORIG_TSSDKVersion;
+
+typedef enum
+{
+  ORIG_TS_ERROR = -1,
+  ORIG_TS_SUCCESS = 0
+} ORIG_TSReturnCode;
+
+
+REGRESSION_TEST(SDK_API_TSConstant) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  bool test_passed = true;
+
+  PRINT_DIFF(TS_PARSE_ERROR);
+  PRINT_DIFF(TS_PARSE_DONE);
+  PRINT_DIFF(TS_PARSE_OK);
+  PRINT_DIFF(TS_PARSE_CONT);
+
+  PRINT_DIFF(TS_HTTP_STATUS_NONE);
+  PRINT_DIFF(TS_HTTP_STATUS_CONTINUE);
+  PRINT_DIFF(TS_HTTP_STATUS_SWITCHING_PROTOCOL);
+  PRINT_DIFF(TS_HTTP_STATUS_OK);
+  PRINT_DIFF(TS_HTTP_STATUS_CREATED);
+
+
+  PRINT_DIFF(TS_HTTP_STATUS_ACCEPTED);
+  PRINT_DIFF(TS_HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION);
+  PRINT_DIFF(TS_HTTP_STATUS_NO_CONTENT);
+  PRINT_DIFF(TS_HTTP_STATUS_RESET_CONTENT);
+  PRINT_DIFF(TS_HTTP_STATUS_PARTIAL_CONTENT);
+
+  PRINT_DIFF(TS_HTTP_STATUS_MULTIPLE_CHOICES);
+  PRINT_DIFF(TS_HTTP_STATUS_MOVED_PERMANENTLY);
+  PRINT_DIFF(TS_HTTP_STATUS_MOVED_TEMPORARILY);
+  PRINT_DIFF(TS_HTTP_STATUS_SEE_OTHER);
+  PRINT_DIFF(TS_HTTP_STATUS_NOT_MODIFIED);
+  PRINT_DIFF(TS_HTTP_STATUS_USE_PROXY);
+  PRINT_DIFF(TS_HTTP_STATUS_BAD_REQUEST);
+  PRINT_DIFF(TS_HTTP_STATUS_UNAUTHORIZED);
+  PRINT_DIFF(TS_HTTP_STATUS_FORBIDDEN);
+  PRINT_DIFF(TS_HTTP_STATUS_NOT_FOUND);
+  PRINT_DIFF(TS_HTTP_STATUS_METHOD_NOT_ALLOWED);
+  PRINT_DIFF(TS_HTTP_STATUS_NOT_ACCEPTABLE);
+  PRINT_DIFF(TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED);
+  PRINT_DIFF(TS_HTTP_STATUS_REQUEST_TIMEOUT);
+  PRINT_DIFF(TS_HTTP_STATUS_CONFLICT);
+  PRINT_DIFF(TS_HTTP_STATUS_GONE);
+  PRINT_DIFF(TS_HTTP_STATUS_PRECONDITION_FAILED);
+  PRINT_DIFF(TS_HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE);
+  PRINT_DIFF(TS_HTTP_STATUS_REQUEST_URI_TOO_LONG);
+  PRINT_DIFF(TS_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE);
+  PRINT_DIFF(TS_HTTP_STATUS_INTERNAL_SERVER_ERROR);
+  PRINT_DIFF(TS_HTTP_STATUS_NOT_IMPLEMENTED);
+  PRINT_DIFF(TS_HTTP_STATUS_BAD_GATEWAY);
+  PRINT_DIFF(TS_HTTP_STATUS_GATEWAY_TIMEOUT);
+  PRINT_DIFF(TS_HTTP_STATUS_HTTPVER_NOT_SUPPORTED);
+
+  PRINT_DIFF(TS_HTTP_READ_REQUEST_HDR_HOOK);
+  PRINT_DIFF(TS_HTTP_OS_DNS_HOOK);
+  PRINT_DIFF(TS_HTTP_SEND_REQUEST_HDR_HOOK);
+  PRINT_DIFF(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+  PRINT_DIFF(TS_HTTP_SEND_RESPONSE_HDR_HOOK);
+  PRINT_DIFF(TS_HTTP_REQUEST_TRANSFORM_HOOK);
+  PRINT_DIFF(TS_HTTP_RESPONSE_TRANSFORM_HOOK);
+  PRINT_DIFF(TS_HTTP_SELECT_ALT_HOOK);
+  PRINT_DIFF(TS_HTTP_TXN_START_HOOK);
+  PRINT_DIFF(TS_HTTP_TXN_CLOSE_HOOK);
+  PRINT_DIFF(TS_HTTP_SSN_START_HOOK);
+  PRINT_DIFF(TS_HTTP_SSN_CLOSE_HOOK);
+  PRINT_DIFF(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK);
+  PRINT_DIFF(TS_HTTP_LAST_HOOK);
+
+  PRINT_DIFF(TS_EVENT_NONE);
+  PRINT_DIFF(TS_EVENT_IMMEDIATE);
+  PRINT_DIFF(TS_EVENT_TIMEOUT);
+  PRINT_DIFF(TS_EVENT_ERROR);
+
+  PRINT_DIFF(TS_EVENT_CONTINUE);
+  PRINT_DIFF(TS_EVENT_VCONN_READ_READY);
+  PRINT_DIFF(TS_EVENT_VCONN_WRITE_READY);
+  PRINT_DIFF(TS_EVENT_VCONN_READ_COMPLETE);
+  PRINT_DIFF(TS_EVENT_VCONN_WRITE_COMPLETE);
+  PRINT_DIFF(TS_EVENT_VCONN_EOS);
+
+  PRINT_DIFF(TS_EVENT_NET_CONNECT);
+  PRINT_DIFF(TS_EVENT_NET_CONNECT_FAILED);
+  PRINT_DIFF(TS_EVENT_NET_ACCEPT);
+  PRINT_DIFF(TS_EVENT_NET_ACCEPT_FAILED);
+
+  PRINT_DIFF(TS_EVENT_HOST_LOOKUP);
+
+  PRINT_DIFF(TS_EVENT_CACHE_OPEN_READ);
+  PRINT_DIFF(TS_EVENT_CACHE_OPEN_READ_FAILED);
+  PRINT_DIFF(TS_EVENT_CACHE_OPEN_WRITE);
+  PRINT_DIFF(TS_EVENT_CACHE_OPEN_WRITE_FAILED);
+  PRINT_DIFF(TS_EVENT_CACHE_REMOVE);
+  PRINT_DIFF(TS_EVENT_CACHE_REMOVE_FAILED);
+  PRINT_DIFF(TS_EVENT_CACHE_SCAN);
+  PRINT_DIFF(TS_EVENT_CACHE_SCAN_FAILED);
+  PRINT_DIFF(TS_EVENT_CACHE_SCAN_OBJECT);
+  PRINT_DIFF(TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED);
+  PRINT_DIFF(TS_EVENT_CACHE_SCAN_OPERATION_FAILED);
+  PRINT_DIFF(TS_EVENT_CACHE_SCAN_DONE);
+
+  PRINT_DIFF(TS_EVENT_HTTP_CONTINUE);
+  PRINT_DIFF(TS_EVENT_HTTP_ERROR);
+  PRINT_DIFF(TS_EVENT_HTTP_READ_REQUEST_HDR);
+  PRINT_DIFF(TS_EVENT_HTTP_OS_DNS);
+  PRINT_DIFF(TS_EVENT_HTTP_SEND_REQUEST_HDR);
+  PRINT_DIFF(TS_EVENT_HTTP_READ_CACHE_HDR);
+  PRINT_DIFF(TS_EVENT_HTTP_READ_RESPONSE_HDR);
+  PRINT_DIFF(TS_EVENT_HTTP_SEND_RESPONSE_HDR);
+  PRINT_DIFF(TS_EVENT_HTTP_REQUEST_TRANSFORM);
+  PRINT_DIFF(TS_EVENT_HTTP_RESPONSE_TRANSFORM);
+  PRINT_DIFF(TS_EVENT_HTTP_SELECT_ALT);
+  PRINT_DIFF(TS_EVENT_HTTP_TXN_START);
+  PRINT_DIFF(TS_EVENT_HTTP_TXN_CLOSE);
+  PRINT_DIFF(TS_EVENT_HTTP_SSN_START);
+  PRINT_DIFF(TS_EVENT_HTTP_SSN_CLOSE);
+  PRINT_DIFF(TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE);
+
+  PRINT_DIFF(TS_EVENT_MGMT_UPDATE);
+
+  PRINT_DIFF(TS_CACHE_LOOKUP_MISS);
+  PRINT_DIFF(TS_CACHE_LOOKUP_HIT_STALE);
+  PRINT_DIFF(TS_CACHE_LOOKUP_HIT_FRESH);
+
+  PRINT_DIFF(TS_CACHE_DATA_TYPE_NONE);
+  PRINT_DIFF(TS_CACHE_DATA_TYPE_HTTP);
+  PRINT_DIFF(TS_CACHE_DATA_TYPE_OTHER);
+
+  PRINT_DIFF(TS_CACHE_ERROR_NO_DOC);
+  PRINT_DIFF(TS_CACHE_ERROR_DOC_BUSY);
+  PRINT_DIFF(TS_CACHE_ERROR_NOT_READY);
+
+  PRINT_DIFF(TS_CACHE_SCAN_RESULT_DONE);
+  PRINT_DIFF(TS_CACHE_SCAN_RESULT_CONTINUE);
+  PRINT_DIFF(TS_CACHE_SCAN_RESULT_DELETE);
+  PRINT_DIFF(TS_CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES);
+  PRINT_DIFF(TS_CACHE_SCAN_RESULT_UPDATE);
+  PRINT_DIFF(TS_CACHE_SCAN_RESULT_RETRY);
+
+  PRINT_DIFF(TS_VC_CLOSE_ABORT);
+  PRINT_DIFF(TS_VC_CLOSE_NORMAL);
+
+  PRINT_DIFF(TS_SDK_VERSION_2_0);
+  PRINT_DIFF(TS_SDK_VERSION_3_0);
+
+  PRINT_DIFF(TS_ERROR);
+  PRINT_DIFF(TS_SUCCESS);
+
+
+  if (test_passed) {
+    *pstatus = REGRESSION_TEST_PASSED;
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSHttpSsn
+//
+// Unit Test for API: TSHttpSsnHookAdd
+//                    TSHttpSsnReenable
+//                    TSHttpTxnHookAdd
+//                    TSHttpTxnErrorBodySet
+//                    TSHttpTxnParentProxyGet
+//                    TSHttpTxnParentProxySet
+//////////////////////////////////////////////
+
+
+typedef struct
+{
+  RegressionTest *test;
+  int *pstatus;
+  SocketServer *os;
+  ClientTxn *browser;
+  TSHttpSsn ssnp;
+  int test_passed_ssn_hook_add;
+  int test_passed_ssn_reenable;
+  int test_passed_txn_ssn_get;
+  int test_passed_txn_hook_add;
+  int test_passed_txn_error_body_set;
+  bool test_passed_Parent_Proxy;
+  int magic;
+} ContData;
+
+static int
+checkHttpTxnParentProxy(ContData * data, TSHttpTxn txnp)
+{
+
+  const char *hostname = "txnpp.example.com";
+  int port = 10180;
+  char *hostnameget = NULL;
+  int portget = 0;
+
+  TSHttpTxnParentProxySet(txnp, (char*)hostname, port);
+  if (TSHttpTxnParentProxyGet(txnp, &hostnameget, &portget) != TS_SUCCESS) {
+    SDK_RPRINT(data->test, "TSHttpTxnParentProxySet", "TestCase1", TC_FAIL, "TSHttpTxnParentProxyGet doesn't return TS_SUCCESS");
+    SDK_RPRINT(data->test, "TSHttpTxnParentProxyGet", "TestCase1", TC_FAIL, "TSHttpTxnParentProxyGet doesn't return TS_SUCCESS");
+    return TS_EVENT_CONTINUE;
+  }
+
+  if ((strcmp(hostname, hostnameget) == 0) && (port == portget)) {
+    SDK_RPRINT(data->test, "TSHttpTxnParentProxySet", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(data->test, "TSHttpTxnParentProxyGet", "TestCase1", TC_PASS, "ok");
+    data->test_passed_Parent_Proxy = true;
+  } else {
+    SDK_RPRINT(data->test, "TSHttpTxnParentProxySet", "TestCase1", TC_FAIL, "Value's Mismatch");
+    SDK_RPRINT(data->test, "TSHttpTxnParentProxyGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+  }
+
+  return TS_EVENT_CONTINUE;
+}
+
+
+static int
+ssn_handler(TSCont contp, TSEvent event, void *edata)
+{
+
+  TSHttpTxn txnp = NULL;
+  ContData *data = NULL;
+  data = (ContData *)TSContDataGet(contp);
+  if (data == NULL) {
+    switch (event) {
+    case TS_EVENT_HTTP_SSN_START:
+      TSHttpSsnReenable((TSHttpSsn) edata, TS_EVENT_HTTP_CONTINUE);
+      break;
+    case TS_EVENT_IMMEDIATE:
+    case TS_EVENT_TIMEOUT:
+      break;
+    case TS_EVENT_HTTP_TXN_START:
+    default:
+      TSHttpTxnReenable((TSHttpTxn) edata, TS_EVENT_HTTP_CONTINUE);
+      break;
+    }
+    return 0;
+  }
+
+  switch (event) {
+  case TS_EVENT_HTTP_SSN_START:
+    data->ssnp = (TSHttpSsn) edata;
+    TSHttpSsnHookAdd(data->ssnp, TS_HTTP_TXN_START_HOOK, contp);
+    TSHttpSsnReenable(data->ssnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_HTTP_TXN_START:
+    TSSkipRemappingSet((TSHttpTxn) edata,1);
+    SDK_RPRINT(data->test, "TSHttpSsnReenable", "TestCase", TC_PASS, "ok");
+    data->test_passed_ssn_reenable++;
+    {
+      txnp = (TSHttpTxn) edata;
+      TSHttpSsn ssnp = TSHttpTxnSsnGet(txnp);
+      if (ssnp != data->ssnp) {
+        SDK_RPRINT(data->test, "TSHttpSsnHookAdd", "TestCase", TC_FAIL, "Value's mismatch");
+        data->test_passed_ssn_hook_add--;
+        SDK_RPRINT(data->test, "TSHttpTxnSsnGet", "TestCase", TC_FAIL, "Session doesn't match");
+        data->test_passed_txn_ssn_get--;
+      } else {
+        SDK_RPRINT(data->test, "TSHttpSsnHookAdd", "TestCase1", TC_PASS, "ok");
+        data->test_passed_ssn_hook_add++;
+        SDK_RPRINT(data->test, "TSHttpTxnSsnGet", "TestCase1", TC_PASS, "ok");
+        data->test_passed_txn_ssn_get++;
+      }
+      TSHttpTxnHookAdd(txnp, TS_HTTP_OS_DNS_HOOK, contp);
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    }
+    break;
+
+  case TS_EVENT_HTTP_OS_DNS:
+    SDK_RPRINT(data->test, "TSHttpTxnHookAdd", "TestCase1", TC_PASS, "ok");
+    data->test_passed_txn_hook_add++;
+    txnp = (TSHttpTxn) edata;
+
+    TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+    checkHttpTxnParentProxy(data, txnp);
+
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_ERROR);
+    break;
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    SDK_RPRINT(data->test, "TSHttpTxnHookAdd", "TestCase2", TC_PASS, "ok");
+    data->test_passed_txn_hook_add++;
+    txnp = (TSHttpTxn) edata;
+    if (1) {
+      char *temp = TSstrdup(ERROR_BODY);
+      TSHttpTxnErrorBodySet(txnp, temp, strlen(temp), NULL);
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_TIMEOUT:
+    /* Browser still waiting the response ? */
+    if (data->browser->status == REQUEST_INPROGRESS) {
+      TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+    }
+    /* Browser got the response. test is over. clean up */
+    else {
+      /* Check if browser response body is the one we expected */
+      char *temp = data->browser->response;
+      temp = strstr(temp, "\r\n\r\n");
+      if (temp != NULL) {
+        temp += strlen("\r\n\r\n");
+        if ((temp[0] == '\0') || (strncmp(temp, "\r\n\r\n", 4) == 0)) {
+          SDK_RPRINT(data->test, "TSHttpTxnErrorBodySet", "TestCase1", TC_FAIL, "No Error Body found");
+          data->test_passed_txn_error_body_set--;
+        }
+        if (strncmp(temp, ERROR_BODY, strlen(ERROR_BODY)) == 0) {
+          SDK_RPRINT(data->test, "TSHttpTxnErrorBodySet", "TestCase1", TC_PASS, "ok");
+          data->test_passed_txn_error_body_set++;
+        }
+      } else {
+        SDK_RPRINT(data->test, "TSHttpTxnErrorBodySet", "TestCase1", TC_FAIL, "strstr returns NULL. Didn't find end of headers.");
+        data->test_passed_txn_error_body_set--;
+      }
+
+      /* Note: response is available using test->browser->response pointer */
+      if ((data->browser->status == REQUEST_SUCCESS) &&
+          (data->test_passed_ssn_hook_add == 1) &&
+          (data->test_passed_ssn_reenable == 1) &&
+          (data->test_passed_txn_ssn_get == 1) &&
+          (data->test_passed_txn_hook_add == 2) && (data->test_passed_txn_error_body_set == 1)
+          && (data->test_passed_Parent_Proxy == true)) {
+        *(data->pstatus) = REGRESSION_TEST_PASSED;
+      } else {
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+
+      // transaction is over. clean up.
+      synclient_txn_delete(data->browser);
+      /* Don't need it as didn't initialize the server
+         synserver_delete(data->os);
+       */
+      data->magic = MAGIC_DEAD;
+      TSfree(data);
+      TSContDataSet(contp, NULL);
+    }
+    break;
+
+  default:
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    SDK_RPRINT(data->test, "TSHttpSsn", "TestCase1", TC_FAIL, "Unexpected event %d", event);
+    break;
+  }
+  return 0;
+}
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_HttpSsn) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSCont cont = TSContCreate(ssn_handler, TSMutexCreate());
+  if (cont == NULL) {
+    SDK_RPRINT(test, "TSHttpSsn", "TestCase1", TC_FAIL, "Unable to create Continuation.");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  ContData *socktest = (ContData *) TSmalloc(sizeof(ContData));
+  socktest->test = test;
+  socktest->pstatus = pstatus;
+  socktest->test_passed_ssn_hook_add = 0;
+  socktest->test_passed_ssn_reenable = 0;
+  socktest->test_passed_txn_ssn_get = 0;
+  socktest->test_passed_txn_hook_add = 0;
+  socktest->test_passed_txn_error_body_set = 0;
+  socktest->test_passed_Parent_Proxy = false;
+  socktest->magic = MAGIC_ALIVE;
+  TSContDataSet(cont, socktest);
+
+  /* Register to HTTP hooks that are called in case of a cache MISS */
+  TSHttpHookAdd(TS_HTTP_SSN_START_HOOK, cont);
+
+  /* Create a client transaction */
+  socktest->browser = synclient_txn_create();
+  char *request = generate_request(3);  // response is expected to be error case
+  synclient_txn_send_request(socktest->browser, request);
+  TSfree(request);
+
+  /* Wait until transaction is done */
+  if (socktest->browser->status == REQUEST_INPROGRESS) {
+    TSContSchedule(cont, 25, TS_THREAD_POOL_DEFAULT);
+  }
+
+  return;
+}
+
+/////////////////////////////////////////////////////
+//       SDK_API_TSHttpTxnCache
+//
+// Unit Test for API: TSHttpTxnCachedReqGet
+//                    TSHttpTxnCachedRespGet
+//                    TSHttpTxnCacheLookupStatusGet
+/////////////////////////////////////////////////////
+
+typedef struct
+{
+  RegressionTest *test;
+  int *pstatus;
+  SocketServer *os;
+  ClientTxn *browser1;
+  ClientTxn *browser2;
+  char *request;
+  bool test_passed_txn_cached_req_get;
+  bool test_passed_txn_cached_resp_get;
+  bool test_passed_txn_cache_lookup_status;
+  bool first_time;
+  int magic;
+} CacheTestData;
+
+static int
+cache_hook_handler(TSCont contp, TSEvent event, void *edata)
+{
+
+  TSHttpTxn txnp = NULL;
+  CacheTestData *data = (CacheTestData *)TSContDataGet(contp);
+
+  if (data == NULL) {
+    switch (event) {
+    case TS_EVENT_IMMEDIATE:
+    case TS_EVENT_TIMEOUT:
+      break;
+    case TS_EVENT_HTTP_READ_CACHE_HDR:
+    default:
+      TSHttpTxnReenable((TSHttpTxn) edata, TS_EVENT_HTTP_CONTINUE);
+      break;
+    }
+    return 0;
+  }
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    txnp = (TSHttpTxn) edata;
+    TSSkipRemappingSet(txnp,1);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:
+    {
+      int lookup_status;
+      if (data->first_time == true) {
+        txnp = (TSHttpTxn) edata;
+        if (TSHttpTxnCacheLookupStatusGet(txnp, &lookup_status) != TS_SUCCESS) {
+          SDK_RPRINT(data->test, "TSHttpTxnCacheLookupStatusGet", "TestCase1", TC_FAIL,
+                     "TSHttpTxnCacheLookupStatus doesn't return TS_SUCCESS");
+        } else {
+          if (lookup_status == TS_CACHE_LOOKUP_MISS) {
+            SDK_RPRINT(data->test, "TSHttpTxnCacheLookupStatusGet", "TestCase1", TC_PASS, "ok");
+            data->test_passed_txn_cache_lookup_status = true;
+          } else {
+            SDK_RPRINT(data->test, "TSHttpTxnCacheLookupStatusGet", "TestCase1", TC_FAIL,
+                       "Incorrect Value returned by TSHttpTxnCacheLookupStatusGet");
+          }
+        }
+      } else {
+        txnp = (TSHttpTxn) edata;
+        if (TSHttpTxnCacheLookupStatusGet(txnp, &lookup_status) != TS_SUCCESS) {
+          SDK_RPRINT(data->test, "TSHttpTxnCacheLookupStatusGet", "TestCase2", TC_FAIL,
+                     "TSHttpTxnCacheLookupStatus doesn't return TS_SUCCESS");
+          data->test_passed_txn_cache_lookup_status = false;
+        } else {
+          if (lookup_status == TS_CACHE_LOOKUP_HIT_FRESH) {
+            SDK_RPRINT(data->test, "TSHttpTxnCacheLookupStatusGet", "TestCase2", TC_PASS, "ok");
+          } else {
+            SDK_RPRINT(data->test, "TSHttpTxnCacheLookupStatusGet", "TestCase2", TC_FAIL,
+                       "Incorrect Value returned by TSHttpTxnCacheLookupStatusGet");
+            data->test_passed_txn_cache_lookup_status = false;
+          }
+        }
+      }
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    }
+    break;
+  case TS_EVENT_HTTP_READ_CACHE_HDR:
+    {
+      TSMBuffer reqbuf;
+      TSMBuffer respbuf;
+
+      TSMLoc reqhdr;
+      TSMLoc resphdr;
+
+      txnp = (TSHttpTxn) edata;
+
+      if (TSHttpTxnCachedReqGet(txnp, &reqbuf, &reqhdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpTxnCachedReqGet", "TestCase1", TC_FAIL, "TSHttpTxnCachedReqGet returns 0");
+      } else {
+        if ((reqbuf == reinterpret_cast<TSMBuffer>(((HttpSM *) txnp)->t_state.cache_req_hdr_heap_handle)) &&
+            (reqhdr == reinterpret_cast<TSMLoc>((((HttpSM *) txnp)->t_state.cache_info.object_read->request_get())->m_http))) {
+          SDK_RPRINT(data->test, "TSHttpTxnCachedReqGet", "TestCase1", TC_PASS, "ok");
+          data->test_passed_txn_cached_req_get = true;
+        } else {
+          SDK_RPRINT(data->test, "TSHttpTxnCachedReqGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+        }
+      }
+
+      if (TSHttpTxnCachedRespGet(txnp, &respbuf, &resphdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpTxnCachedRespGet", "TestCase1", TC_FAIL, "TSHttpTxnCachedRespGet returns 0");
+      } else {
+        if ((respbuf == reinterpret_cast<TSMBuffer>(((HttpSM *) txnp)->t_state.cache_resp_hdr_heap_handle)) &&
+            (resphdr == reinterpret_cast<TSMLoc>((((HttpSM *) txnp)->t_state.cache_info.object_read->response_get())->m_http))) {
+          SDK_RPRINT(data->test, "TSHttpTxnCachedRespGet", "TestCase1", TC_PASS, "ok");
+          data->test_passed_txn_cached_resp_get = true;
+        } else {
+          SDK_RPRINT(data->test, "TSHttpTxnCachedRespGet", "TestCase1", TC_FAIL, "Value's Mismatch");
+        }
+      }
+
+      if ((TSHandleMLocRelease(reqbuf, TS_NULL_MLOC, reqhdr) != TS_SUCCESS) ||
+          (TSHandleMLocRelease(respbuf, TS_NULL_MLOC, resphdr) != TS_SUCCESS)) {
+        SDK_RPRINT(data->test, "TSHttpTxnCache", "", TC_FAIL, "Unable to release handle to headers.");
+      }
+
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    }
+
+    break;
+
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_TIMEOUT:
+    /* Browser still waiting the response ? */
+    if (data->first_time == true) {
+      if (data->browser1->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+    } else {
+      if (data->browser2->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+    }
+
+    /* Browser got the response. test is over. clean up */
+    {
+      /* If this is the first time, then the response is in cache and we should make */
+      /* another request to get cache hit */
+      if (data->first_time == true) {
+	data->first_time = false;
+        /* Kill the origin server */
+        synserver_delete(data->os);
+
+        /* Send another similar client request */
+        synclient_txn_send_request(data->browser2, data->request);
+        ink_assert(REQUEST_INPROGRESS == data->browser2->status);
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+
+      /* Note: response is available using test->browser->response pointer */
+      if ((data->browser1->status == REQUEST_SUCCESS) &&
+          (data->browser2->status == REQUEST_SUCCESS) &&
+          (data->test_passed_txn_cached_req_get == true) &&
+          (data->test_passed_txn_cached_resp_get == true) && (data->test_passed_txn_cache_lookup_status == true)) {
+        *(data->pstatus) = REGRESSION_TEST_PASSED;
+      } else {
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+
+      // transaction is over. clean up.
+      synclient_txn_delete(data->browser1);
+      synclient_txn_delete(data->browser2);
+
+      data->magic = MAGIC_DEAD;
+      TSfree(data->request);
+      TSfree(data);
+      TSContDataSet(contp, NULL);
+    }
+    break;
+
+  default:
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    SDK_RPRINT(data->test, "TSHttpTxnCache", "TestCase1", TC_FAIL, "Unexpected event %d", event);
+    break;
+  }
+  return 0;
+}
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_HttpTxnCache) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSCont cont = TSContCreate(cache_hook_handler, TSMutexCreate());
+
+  if (cont == NULL) {
+    SDK_RPRINT(test, "TSHttpSsn", "TestCase1", TC_FAIL, "Unable to create Continuation.");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  CacheTestData *socktest = (CacheTestData *) TSmalloc(sizeof(CacheTestData));
+  socktest->test = test;
+  socktest->pstatus = pstatus;
+  socktest->test_passed_txn_cached_req_get = false;
+  socktest->test_passed_txn_cached_resp_get = false;
+  socktest->first_time = true;
+  socktest->magic = MAGIC_ALIVE;
+  TSContDataSet(cont, socktest);
+
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont);
+  /* Register to HTTP hooks that are called in case of a cache MISS */
+  TSHttpHookAdd(TS_HTTP_READ_CACHE_HDR_HOOK, cont);
+  TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, cont);
+
+  /* Create a new synthetic server */
+  socktest->os = synserver_create(SYNSERVER_LISTEN_PORT);
+  synserver_start(socktest->os);
+
+  /* Create a client transaction */
+  socktest->browser1 = synclient_txn_create();
+  socktest->browser2 = synclient_txn_create();
+  socktest->request = generate_request(2);
+  synclient_txn_send_request(socktest->browser1, socktest->request);
+
+  /* Wait until transaction is done */
+  TSContSchedule(cont, 25, TS_THREAD_POOL_DEFAULT);
+
+  return;
+}
+
+///////////////////////////////////////////////////////
+//       SDK_API_TSHttpTxnTransform
+//
+// Unit Test for API: TSHttpTxnTransformRespGet
+//                    TSHttpTxnTransformedRespCache
+//                    TSHttpTxnUntransformedRespCache
+///////////////////////////////////////////////////////
+
+/** Append Transform Data Structure **/
+typedef struct
+{
+  TSVIO output_vio;
+  TSIOBuffer output_buffer;
+  TSIOBufferReader output_reader;
+  int append_needed;
+} MyTransformData;
+/** Append Transform Data Structure Ends **/
+
+typedef struct
+{
+  RegressionTest *test;
+  int *pstatus;
+  SocketServer *os;
+  ClientTxn *browser1;
+  ClientTxn *browser2;
+  ClientTxn *browser3;
+  ClientTxn *browser4;
+  char *request1;
+  char *request2;
+  bool test_passed_txn_transform_resp_get;
+  bool test_passed_txn_transformed_resp_cache;
+  bool test_passed_txn_untransformed_resp_cache;
+  bool test_passed_transform_create;
+  int req_no;
+  MyTransformData *transformData;
+  int magic;
+} TransformTestData;
+
+/**** Append Transform Code (Tailored to needs)****/
+
+static TSIOBuffer append_buffer;
+static TSIOBufferReader append_buffer_reader;
+static int64_t append_buffer_length;
+
+static MyTransformData *
+my_data_alloc()
+{
+  MyTransformData *data;
+
+  data = (MyTransformData *) TSmalloc(sizeof(MyTransformData));
+  data->output_vio = NULL;
+  data->output_buffer = NULL;
+  data->output_reader = NULL;
+  data->append_needed = 1;
+
+  return data;
+}
+
+static void
+my_data_destroy(MyTransformData * data)
+{
+  if (data) {
+    if (data->output_buffer) {
+      TSIOBufferDestroy(data->output_buffer);
+    }
+    TSfree(data);
+  }
+}
+
+static void
+handle_transform(TSCont contp)
+{
+  TSVConn output_conn;
+  TSVIO write_vio;
+  TransformTestData *contData;
+  MyTransformData *data;
+  int64_t towrite;
+  int64_t avail;
+
+  /* Get the output connection where we'll write data to. */
+  output_conn = TSTransformOutputVConnGet(contp);
+
+  /* Get the write VIO for the write operation that was performed on
+     ourself. This VIO contains the buffer that we are to read from
+     as well as the continuation we are to call when the buffer is
+     empty. */
+  write_vio = TSVConnWriteVIOGet(contp);
+
+  /* Get our data structure for this operation. The private data
+     structure contains the output VIO and output buffer. If the
+     private data structure pointer is NULL, then we'll create it
+     and initialize its internals. */
+  contData = (TransformTestData *) TSContDataGet(contp);
+  data = contData->transformData;
+  if (!data) {
+    towrite = TSVIONBytesGet(write_vio);
+    if (towrite != INT64_MAX) {
+      towrite += append_buffer_length;
+    }
+    contData->transformData = my_data_alloc();
+    data = contData->transformData;
+    data->output_buffer = TSIOBufferCreate();
+    data->output_reader = TSIOBufferReaderAlloc(data->output_buffer);
+    data->output_vio = TSVConnWrite(output_conn, contp, data->output_reader, towrite);
+    // Don't need this as the structure is encapsulated in another structure
+    // which is set to be Continuation's Data.
+    // TSContDataSet (contp, data);
+  }
+
+  /* We also check to see if the write VIO's buffer is non-NULL. A
+     NULL buffer indicates that the write operation has been
+     shutdown and that the continuation does not want us to send any
+     more WRITE_READY or WRITE_COMPLETE events. For this simplistic
+     transformation that means we're done. In a more complex
+     transformation we might have to finish writing the transformed
+     data to our output connection. */
+  if (!TSVIOBufferGet(write_vio)) {
+    if (data->append_needed) {
+      data->append_needed = 0;
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), append_buffer_reader, append_buffer_length, 0);
+    }
+
+    TSVIONBytesSet(data->output_vio, TSVIONDoneGet(write_vio) + append_buffer_length);
+    TSVIOReenable(data->output_vio);
+    return;
+  }
+
+  /* Determine how much data we have left to read. For this append
+     transform plugin this is also the amount of data we have left
+     to write to the output connection. */
+  towrite = TSVIONTodoGet(write_vio);
+  if (towrite > 0) {
+    /* The amount of data left to read needs to be truncated by
+       the amount of data actually in the read buffer. */
+    avail = TSIOBufferReaderAvail(TSVIOReaderGet(write_vio));
+    if (towrite > avail) {
+      towrite = avail;
+    }
+
+    if (towrite > 0) {
+      /* Copy the data from the read buffer to the output buffer. */
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), TSVIOReaderGet(write_vio), towrite, 0);
+
+      /* Tell the read buffer that we have read the data and are no
+         longer interested in it. */
+      TSIOBufferReaderConsume(TSVIOReaderGet(write_vio), towrite);
+
+      /* Modify the write VIO to reflect how much data we've
+         completed. */
+      TSVIONDoneSet(write_vio, TSVIONDoneGet(write_vio) + towrite);
+    }
+  }
+
+  /* Now we check the write VIO to see if there is data left to
+     read. */
+  if (TSVIONTodoGet(write_vio) > 0) {
+    if (towrite > 0) {
+      /* If there is data left to read, then we reenable the output
+         connection by reenabling the output VIO. This will wakeup
+         the output connection and allow it to consume data from the
+         output buffer. */
+      TSVIOReenable(data->output_vio);
+
+      /* Call back the write VIO continuation to let it know that we
+         are ready for more data. */
+      TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_READY, write_vio);
+    }
+  } else {
+    if (data->append_needed) {
+      data->append_needed = 0;
+      TSIOBufferCopy(TSVIOBufferGet(data->output_vio), append_buffer_reader, append_buffer_length, 0);
+    }
+
+    /* If there is no data left to read, then we modify the output
+       VIO to reflect how much data the output connection should
+       expect. This allows the output connection to know when it
+       is done reading. We then reenable the output connection so
+       that it can consume the data we just gave it. */
+    TSVIONBytesSet(data->output_vio, TSVIONDoneGet(write_vio) + append_buffer_length);
+    TSVIOReenable(data->output_vio);
+
+    /* Call back the write VIO continuation to let it know that we
+       have completed the write operation. */
+    TSContCall(TSVIOContGet(write_vio), TS_EVENT_VCONN_WRITE_COMPLETE, write_vio);
+  }
+}
+
+static int
+transformtest_transform(TSCont contp, TSEvent event, void * /* edata ATS_UNUSED */)
+{
+  TransformTestData *contData = (TransformTestData *) TSContDataGet(contp);
+  if (contData->test_passed_transform_create == false) {
+    contData->test_passed_transform_create = true;
+    SDK_RPRINT(contData->test, "TSTransformCreate", "TestCase1", TC_PASS, "ok");
+  }
+  /* Check to see if the transformation has been closed by a call to
+     TSVConnClose. */
+  if (TSVConnClosedGet(contp)) {
+    my_data_destroy(contData->transformData);
+    contData->transformData = NULL;
+    TSContDestroy(contp);
+    return 0;
+  } else {
+    switch (event) {
+    case TS_EVENT_ERROR:
+      {
+        TSVIO write_vio;
+
+        /* Get the write VIO for the write operation that was
+           performed on ourself. This VIO contains the continuation of
+           our parent transformation. */
+        write_vio = TSVConnWriteVIOGet(contp);
+
+        /* Call back the write VIO continuation to let it know that we
+           have completed the write operation. */
+        TSContCall(TSVIOContGet(write_vio), TS_EVENT_ERROR, write_vio);
+      }
+      break;
+    case TS_EVENT_VCONN_WRITE_COMPLETE:
+      /* When our output connection says that it has finished
+         reading all the data we've written to it then we should
+         shutdown the write portion of its connection to
+         indicate that we don't want to hear about it anymore. */
+      TSVConnShutdown(TSTransformOutputVConnGet(contp), 0, 1);
+      break;
+    case TS_EVENT_VCONN_WRITE_READY:
+    default:
+      /* If we get a WRITE_READY event or any other type of
+         event (sent, perhaps, because we were reenabled) then
+         we'll attempt to transform more data. */
+      handle_transform(contp);
+      break;
+    }
+  }
+
+  return 0;
+}
+
+static int
+transformable(TSHttpTxn txnp, TransformTestData * data)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc;
+
+  if (TSHttpTxnServerRespGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    SDK_RPRINT(data->test, "TSHttpTxnTransform", "", TC_FAIL, "[transformable]: TSHttpTxnServerRespGet return 0");
+  }
+
+  /*
+   *  We are only interested in "200 OK" responses.
+   */
+
+  if (TS_HTTP_STATUS_OK == TSHttpHdrStatusGet(bufp, hdr_loc)) {
+    return 1;
+  }
+// XXX - Can't return TS_ERROR because that is a different type
+// -bcall 7/24/07
+//     if (resp_status == TS_ERROR) {
+//      SDK_RPRINT(data->test,"TSHttpTxnTransform","",TC_FAIL,"[transformable]: TSHttpHdrStatusGet returns TS_ERROR");
+//     }
+
+  return 0;                     /* not a 200 */
+}
+
+static void
+transform_add(TSHttpTxn txnp, TransformTestData * data)
+{
+  TSVConn connp;
+
+  connp = TSTransformCreate(transformtest_transform, txnp);
+  TSContDataSet(connp, data);
+  if (connp == NULL) {
+    SDK_RPRINT(data->test, "TSHttpTxnTransform", "", TC_FAIL, "Unable to create Transformation.");
+    return;
+  }
+
+  TSHttpTxnHookAdd(txnp, TS_HTTP_RESPONSE_TRANSFORM_HOOK, connp);
+  return;
+}
+
+static int
+load(const char *append_string)
+{
+  TSIOBufferBlock blk;
+  char *p;
+  int64_t avail;
+
+  append_buffer = TSIOBufferCreate();
+  append_buffer_reader = TSIOBufferReaderAlloc(append_buffer);
+
+  blk = TSIOBufferStart(append_buffer);
+  p = TSIOBufferBlockWriteStart(blk, &avail);
+
+  ink_strlcpy(p, append_string, avail);
+  if (append_string != NULL) {
+    TSIOBufferProduce(append_buffer, strlen(append_string));
+  }
+
+  append_buffer_length = TSIOBufferReaderAvail(append_buffer_reader);
+
+  return 1;
+}
+
+/**** Append Transform Code Ends ****/
+
+static int
+transform_hook_handler(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = NULL;
+  TransformTestData *data = NULL;
+  data = (TransformTestData *) TSContDataGet(contp);
+  if (data == NULL) {
+    switch (event) {
+    case TS_EVENT_IMMEDIATE:
+    case TS_EVENT_TIMEOUT:
+      break;
+    case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    default:
+      TSHttpTxnReenable((TSHttpTxn) edata, TS_EVENT_HTTP_CONTINUE);
+      break;
+    }
+    return 0;
+  }
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    txnp = (TSHttpTxn) edata;
+    TSSkipRemappingSet(txnp,1);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    txnp = (TSHttpTxn) edata;
+    /* Setup hooks for Transformation */
+    if (transformable(txnp, data)) {
+      transform_add(txnp, data);
+    }
+    /* Call TransformedRespCache or UntransformedRespCache depending on request */
+    {
+      TSMBuffer bufp;
+      TSMLoc hdr;
+      TSMLoc field;
+
+      if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpTxnTransform", "TestCase", TC_FAIL, "TSHttpTxnClientReqGet returns 0");
+      } else {
+        if (TS_NULL_MLOC == (field = TSMimeHdrFieldFind(bufp, hdr, "Request", -1))) {
+          SDK_RPRINT(data->test, "TSHttpTxnTransform", "TestCase", TC_FAIL, "Didn't find field request");
+        } else {
+          int reqid =TSMimeHdrFieldValueIntGet(bufp, hdr, field, 0);
+          if (reqid == 1) {
+            TSHttpTxnTransformedRespCache(txnp, 0);
+            TSHttpTxnUntransformedRespCache(txnp, 1);
+          }
+          if (reqid == 2) {
+            TSHttpTxnTransformedRespCache(txnp, 1);
+            TSHttpTxnUntransformedRespCache(txnp, 0);
+          }
+          if (TSHandleMLocRelease(bufp, hdr, field) != TS_SUCCESS) {
+            SDK_RPRINT(data->test, "TSHttpTxnTransform", "TestCase", TC_FAIL, "Unable to release handle to field in Client request");
+          }
+        }
+        if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr) != TS_SUCCESS) {
+          SDK_RPRINT(data->test, "TSHttpTxnTransform", "TestCase", TC_FAIL, "Unable to release handle to Client request");
+        }
+      }
+    }
+
+    /* Add the transaction hook to SEND_RESPONSE_HDR_HOOK */
+    TSHttpTxnHookAdd(txnp, TS_HTTP_SEND_RESPONSE_HDR_HOOK, contp);
+    /* Reenable the transaction */
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_HTTP_SEND_RESPONSE_HDR:
+    {
+      TSMBuffer bufp;
+      TSMLoc hdr;
+      txnp = (TSHttpTxn) edata;
+      if (TSHttpTxnTransformRespGet(txnp, &bufp, &hdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpTxnTransformRespGet", "TestCase", TC_FAIL, "TSHttpTxnTransformRespGet returns 0");
+        data->test_passed_txn_transform_resp_get = false;
+      } else {
+        if ((bufp == reinterpret_cast<TSMBuffer>(&(((HttpSM *) txnp)->t_state.hdr_info.transform_response))) &&
+            (hdr == reinterpret_cast<TSMLoc>((&(((HttpSM *) txnp)->t_state.hdr_info.transform_response))->m_http))) {
+          SDK_RPRINT(data->test, "TSHttpTxnTransformRespGet", "TestCase", TC_PASS, "ok");
+        } else {
+          SDK_RPRINT(data->test, "TSHttpTxnTransformRespGet", "TestCase", TC_FAIL, "Value's Mismatch");
+          data->test_passed_txn_transform_resp_get = false;
+        }
+        if (TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr) != TS_SUCCESS) {
+          SDK_RPRINT(data->test, "TSHttpTxnTransformRespGet", "TestCase", TC_FAIL,
+                     "Unable to release handle to Transform header handle");
+        }
+
+      }
+    }
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_TIMEOUT:
+
+    switch (data->req_no) {
+    case 1:
+      if (data->browser1->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+      data->req_no++;
+      Debug(UTDBG_TAG "_transform", "Running Browser 2");
+      synclient_txn_send_request(data->browser2, data->request2);
+      TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+      return 0;
+    case 2:
+      if (data->browser2->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+      data->req_no++;
+      Debug(UTDBG_TAG "_transform", "Running Browser 3");
+      synclient_txn_send_request(data->browser3, data->request1);
+      TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+      return 0;
+    case 3:
+      if (data->browser3->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+      data->req_no++;
+      Debug(UTDBG_TAG "_transform", "Running Browser 4");
+      synclient_txn_send_request(data->browser4, data->request2);
+      TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+      return 0;
+    case 4:
+      if (data->browser4->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+      synserver_delete(data->os);
+      data->req_no++;
+      TSfree(data->request1);
+      TSfree(data->request2);
+      // for squid log: if this is the last (or only) test in your
+      // regression run you will not see any log entries in squid
+      // (because logging is buffered and not flushed before
+      // termination when running regressions)
+      // sleep(10);
+      break;
+    default:
+      SDK_RPRINT(data->test, "TSHttpTxnTransform", "TestCase", TC_FAIL, "Something terribly wrong with the test");
+      exit(0);
+
+    }
+    /* Browser got the response. test is over */
+    {
+      /* Check if we got the response we were expecting or not */
+      if ((strstr(data->browser1->response, TRANSFORM_APPEND_STRING) != NULL) &&
+          (strstr(data->browser3->response, TRANSFORM_APPEND_STRING) == NULL)) {
+        SDK_RPRINT(data->test, "TSHttpTxnUntransformedResponseCache", "TestCase1", TC_PASS, "ok");
+        data->test_passed_txn_untransformed_resp_cache = true;
+      } else {
+        SDK_RPRINT(data->test, "TSHttpTxnUntransformedResponseCache", "TestCase1", TC_FAIL, "Value's Mismatch");
+      }
+
+      if ((strstr(data->browser2->response, TRANSFORM_APPEND_STRING) != NULL) &&
+          (strstr(data->browser4->response, TRANSFORM_APPEND_STRING) != NULL)) {
+        SDK_RPRINT(data->test, "TSHttpTxnTransformedResponseCache", "TestCase1", TC_PASS, "ok");
+        data->test_passed_txn_transformed_resp_cache = true;
+      } else {
+        SDK_RPRINT(data->test, "TSHttpTxnTransformedResponseCache", "TestCase1", TC_FAIL, "Value's Mismatch");
+      }
+
+      /* Note: response is available using test->browser->response pointer */
+      *(data->pstatus) = REGRESSION_TEST_PASSED;
+      if (data->browser1->status != REQUEST_SUCCESS) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "Browser 1 status was not REQUEST_SUCCESS");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->browser2->status != REQUEST_SUCCESS) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "Browser 2 status was not REQUEST_SUCCESS");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->browser3->status != REQUEST_SUCCESS) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "Browser 3 status was not REQUEST_SUCCESS");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->browser4->status != REQUEST_SUCCESS) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "Browser 4 status was not REQUEST_SUCCESS");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->test_passed_txn_transform_resp_get != true) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "did not pass transform_resp_get");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->test_passed_txn_transformed_resp_cache != true) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "did not pass transformed_resp_cache");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->test_passed_txn_untransformed_resp_cache != true) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "did not pass untransformed_resp_cache");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      if (data->test_passed_transform_create != true) {
+        SDK_RPRINT(data->test, "TSTransformCreate", "TestCase1", TC_FAIL, "did not pass transform_create");
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+      // transaction is over. clean up.
+      synclient_txn_delete(data->browser1);
+      synclient_txn_delete(data->browser2);
+      synclient_txn_delete(data->browser3);
+      synclient_txn_delete(data->browser4);
+
+      data->magic = MAGIC_DEAD;
+      TSfree(data);
+      TSContDataSet(contp, NULL);
+    }
+    break;
+
+  default:
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    SDK_RPRINT(data->test, "TSHttpTxnTransform", "TestCase1", TC_FAIL, "Unexpected event %d", event);
+    break;
+  }
+  return 0;
+}
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_HttpTxnTransform) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  Debug(UTDBG_TAG "_transform", "Starting test");
+
+  TSCont cont = TSContCreate(transform_hook_handler, TSMutexCreate());
+  if (cont == NULL) {
+    SDK_RPRINT(test, "TSHttpSsn", "TestCase1", TC_FAIL, "Unable to create Continuation.");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  TransformTestData *socktest = (TransformTestData *) TSmalloc(sizeof(TransformTestData));
+  socktest->test = test;
+  socktest->pstatus = pstatus;
+  socktest->test_passed_txn_transform_resp_get = true;
+  socktest->test_passed_txn_transformed_resp_cache = false;
+  socktest->test_passed_txn_transformed_resp_cache = false;
+  socktest->test_passed_transform_create = false;
+  socktest->transformData = NULL;
+  socktest->req_no = 1;
+  socktest->magic = MAGIC_ALIVE;
+  TSContDataSet(cont, socktest);
+
+  /* Prepare the buffer to be appended to responses */
+  load(TRANSFORM_APPEND_STRING);
+
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont); //so we can skip remapping
+
+  /* Register to HTTP hooks that are called in case of a cache MISS */
+  TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, cont);
+
+  /* Create a new synthetic server */
+  socktest->os = synserver_create(SYNSERVER_LISTEN_PORT);
+  synserver_start(socktest->os);
+
+  /* Create a client transaction */
+  socktest->browser1 = synclient_txn_create();
+  socktest->browser2 = synclient_txn_create();
+  socktest->browser3 = synclient_txn_create();
+  socktest->browser4 = synclient_txn_create();
+  socktest->request1 = generate_request(4);
+  socktest->request2 = generate_request(5);
+  Debug(UTDBG_TAG "_transform", "Running Browser 1");
+  synclient_txn_send_request(socktest->browser1, socktest->request1);
+  // synclient_txn_send_request(socktest->browser2, socktest->request2);
+
+  /* Wait until transaction is done */
+  TSContSchedule(cont, 25, TS_THREAD_POOL_DEFAULT);
+
+  return;
+}
+
+//////////////////////////////////////////////
+//       SDK_API_TSHttpTxnAltInfo
+//
+// Unit Test for API: TSHttpTxnCachedReqGet
+//                    TSHttpTxnCachedRespGet
+//////////////////////////////////////////////
+
+typedef struct
+{
+  RegressionTest *test;
+  int *pstatus;
+  SocketServer *os;
+  ClientTxn *browser1;
+  ClientTxn *browser2;
+  ClientTxn *browser3;
+  char *request1;
+  char *request2;
+  char *request3;
+  bool test_passed_txn_alt_info_client_req_get;
+  bool test_passed_txn_alt_info_cached_req_get;
+  bool test_passed_txn_alt_info_cached_resp_get;
+  bool test_passed_txn_alt_info_quality_set;
+  bool run_at_least_once;
+  bool first_time;
+  int magic;
+} AltInfoTestData;
+
+static int
+altinfo_hook_handler(TSCont contp, TSEvent event, void *edata)
+{
+  AltInfoTestData *data = NULL;
+  TSHttpTxn txnp = NULL;
+
+  data = (AltInfoTestData *) TSContDataGet(contp);
+  if (data == NULL) {
+    switch (event) {
+    case TS_EVENT_IMMEDIATE:
+    case TS_EVENT_TIMEOUT:
+      break;
+    case TS_EVENT_HTTP_SELECT_ALT:
+      break;
+    default:
+      TSHttpTxnReenable((TSHttpTxn) edata, TS_EVENT_HTTP_CONTINUE);
+      break;
+    }
+    return 0;
+  }
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    txnp = (TSHttpTxn) edata;
+    TSSkipRemappingSet(txnp,1);
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_HTTP_SELECT_ALT:
+    {
+      TSMBuffer clientreqbuf;
+      TSMBuffer cachereqbuf;
+      TSMBuffer cacherespbuf;
+
+      TSMLoc clientreqhdr;
+      TSMLoc cachereqhdr;
+      TSMLoc cacheresphdr;
+
+      TSHttpAltInfo infop = (TSHttpAltInfo) edata;
+
+      data->run_at_least_once = true;
+      if (TSHttpAltInfoClientReqGet(infop, &clientreqbuf, &clientreqhdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpAltInfoClientReqGet", "TestCase", TC_FAIL,
+                   "TSHttpAltInfoClientReqGet doesn't return TS_SUCCESS");
+        data->test_passed_txn_alt_info_client_req_get = false;
+      } else {
+        if ((clientreqbuf == reinterpret_cast<TSMBuffer>(&(((HttpAltInfo *)infop)->m_client_req))) &&
+            (clientreqhdr == reinterpret_cast<TSMLoc>(((HttpAltInfo *)infop)->m_client_req.m_http))) {
+          SDK_RPRINT(data->test, "TSHttpAltInfoClientReqGet", "TestCase", TC_PASS, "ok");
+        } else {
+          SDK_RPRINT(data->test, "TSHttpAltInfoClientReqGet", "TestCase", TC_FAIL, "Value's Mismatch");
+          data->test_passed_txn_alt_info_client_req_get = false;
+        }
+      }
+
+      if (TSHttpAltInfoCachedReqGet(infop, &cachereqbuf, &cachereqhdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpAltInfoCachedReqGet", "TestCase", TC_FAIL,
+                   "TSHttpAltInfoCachedReqGet doesn't return TS_SUCCESS");
+        data->test_passed_txn_alt_info_cached_req_get = false;
+      } else {
+        if ((cachereqbuf == reinterpret_cast<TSMBuffer>(&(((HttpAltInfo *) infop)->m_cached_req))) &&
+            (cachereqhdr == reinterpret_cast<TSMLoc>(((HttpAltInfo *) infop)->m_cached_req.m_http))) {
+          SDK_RPRINT(data->test, "TSHttpAltInfoCachedReqGet", "TestCase", TC_PASS, "ok");
+        } else {
+          SDK_RPRINT(data->test, "TSHttpAltInfoCachedReqGet", "TestCase", TC_FAIL, "Value's Mismatch");
+          data->test_passed_txn_alt_info_cached_req_get = false;
+        }
+      }
+
+      if (TSHttpAltInfoCachedRespGet(infop, &cacherespbuf, &cacheresphdr) != TS_SUCCESS) {
+        SDK_RPRINT(data->test, "TSHttpAltInfoCachedRespGet", "TestCase", TC_FAIL,
+                   "TSHttpAltInfoCachedRespGet doesn't return TS_SUCCESS");
+        data->test_passed_txn_alt_info_cached_resp_get = false;
+      } else {
+        if ((cacherespbuf == reinterpret_cast<TSMBuffer>(&(((HttpAltInfo *) infop)->m_cached_resp))) &&
+            (cacheresphdr == reinterpret_cast<TSMLoc>(((HttpAltInfo *) infop)->m_cached_resp.m_http))) {
+          SDK_RPRINT(data->test, "TSHttpAltInfoCachedRespGet", "TestCase", TC_PASS, "ok");
+        } else {
+          SDK_RPRINT(data->test, "TSHttpAltInfoCachedRespGet", "TestCase", TC_FAIL, "Value's Mismatch");
+          data->test_passed_txn_alt_info_cached_resp_get = false;
+        }
+      }
+
+      TSHttpAltInfoQualitySet(infop, 0.5);
+      SDK_RPRINT(data->test, "TSHttpAltInfoQualitySet", "TestCase", TC_PASS, "ok");
+    }
+
+    break;
+
+  case TS_EVENT_IMMEDIATE:
+  case TS_EVENT_TIMEOUT:
+    /* Browser still waiting the response ? */
+    if (data->first_time == true) {
+      if ((data->browser1->status == REQUEST_INPROGRESS) || (data->browser2->status == REQUEST_INPROGRESS)) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+    } else {
+      if (data->browser3->status == REQUEST_INPROGRESS) {
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+    }
+
+    /* Browser got the response. test is over. clean up */
+    {
+      /* If this is the first time, then both the responses are in cache and we should make */
+      /* another request to get cache hit */
+      if (data->first_time == true) {
+        data->first_time = false;
+        /* Kill the origin server */
+        synserver_delete(data->os);
+// ink_release_assert(0);
+        /* Send another similar client request */
+        synclient_txn_send_request(data->browser3, data->request3);
+
+        /* Register to HTTP hooks that are called in case of alternate selection */
+        TSHttpHookAdd(TS_HTTP_SELECT_ALT_HOOK, contp);
+        TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+        return 0;
+      }
+
+      /* Note: response is available using test->browser->response pointer */
+      if ((data->browser3->status == REQUEST_SUCCESS) &&
+          (data->test_passed_txn_alt_info_client_req_get == true) &&
+          (data->test_passed_txn_alt_info_cached_req_get == true) &&
+          (data->test_passed_txn_alt_info_cached_resp_get == true) &&
+          (data->test_passed_txn_alt_info_quality_set == true) && (data->run_at_least_once == true)) {
+        *(data->pstatus) = REGRESSION_TEST_PASSED;
+      } else {
+        if (data->run_at_least_once == false) {
+          SDK_RPRINT(data->test, "TSHttpAltInfo", "All", TC_FAIL, "Test not executed even once");
+        }
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+      }
+
+      // transaction is over. clean up.
+      synclient_txn_delete(data->browser1);
+      synclient_txn_delete(data->browser2);
+      synclient_txn_delete(data->browser3);
+
+      TSfree(data->request1);
+      TSfree(data->request2);
+      TSfree(data->request3);
+
+      data->magic = MAGIC_DEAD;
+      TSfree(data);
+      TSContDataSet(contp, NULL);
+    }
+    break;
+
+  default:
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    SDK_RPRINT(data->test, "TSHttpTxnCache", "TestCase1", TC_FAIL, "Unexpected event %d", event);
+    break;
+  }
+  return 0;
+}
+
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_HttpAltInfo) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSCont cont = TSContCreate(altinfo_hook_handler, TSMutexCreate());
+  if (cont == NULL) {
+    SDK_RPRINT(test, "TSHttpSsn", "TestCase1", TC_FAIL, "Unable to create Continuation.");
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont); //so we can skip remapping
+
+  AltInfoTestData *socktest = (AltInfoTestData *) TSmalloc(sizeof(AltInfoTestData));
+  socktest->test = test;
+  socktest->pstatus = pstatus;
+  socktest->test_passed_txn_alt_info_client_req_get = true;
+  socktest->test_passed_txn_alt_info_cached_req_get = true;
+  socktest->test_passed_txn_alt_info_cached_resp_get = true;
+  socktest->test_passed_txn_alt_info_quality_set = true;
+  socktest->run_at_least_once = false;
+  socktest->first_time = true;
+  socktest->magic = MAGIC_ALIVE;
+  TSContDataSet(cont, socktest);
+
+  /* Create a new synthetic server */
+  socktest->os = synserver_create(SYNSERVER_LISTEN_PORT);
+  synserver_start(socktest->os);
+
+  /* Create a client transaction */
+  socktest->browser1 = synclient_txn_create();
+  socktest->browser2 = synclient_txn_create();
+  socktest->browser3 = synclient_txn_create();
+  socktest->request1 = generate_request(6);
+  socktest->request2 = generate_request(7);
+  socktest->request3 = generate_request(8);
+  synclient_txn_send_request(socktest->browser1, socktest->request1);
+  synclient_txn_send_request(socktest->browser2, socktest->request2);
+
+  /* Wait until transaction is done */
+  TSContSchedule(cont, 25, TS_THREAD_POOL_DEFAULT);
+
+  return;
+}
+
+
+//////////////////////////////////////////////
+//       SDK_API_TSHttpConnect
+//
+// Unit Test for APIs:
+//      - TSHttpConnect
+//      - TSHttpTxnIntercept
+//      - TSHttpTxnInterceptServer
+//
+//
+// 2 Test cases.
+//
+// Same test strategy:
+//  - create a synthetic server listening on port A
+//  - use HttpConnect to send a request to TS for an url on a remote host H, port B
+//  - use TxnIntercept or TxnServerIntercept to forward the request
+//    to the synthetic server on local host, port A
+//  - make sure response is correct
+//
+//////////////////////////////////////////////
+
+// Important: we create servers listening on different port than the default one
+// to make sure our synthetix servers are called
+
+#define TEST_CASE_CONNECT_ID1 9 //TSHttpTxnIntercept
+#define TEST_CASE_CONNECT_ID2 10        //TSHttpTxnServerIntercept
+
+#define SYNSERVER_DUMMY_PORT -1
+
+typedef struct
+{
+  RegressionTest *test;
+  int *pstatus;
+  int test_case;
+  TSVConn vc;
+  SocketServer *os;
+  ClientTxn *browser;
+  char *request;
+  unsigned long magic;
+} ConnectTestData;
+
+
+static int
+cont_test_handler(TSCont contp, TSEvent event, void *edata)
+{
+  TSHttpTxn txnp = (TSHttpTxn) edata;
+  ConnectTestData *data = (ConnectTestData *) TSContDataGet(contp);
+  int request_id = -1;
+
+  TSReleaseAssert(data->magic == MAGIC_ALIVE);
+  TSReleaseAssert((data->test_case == TEST_CASE_CONNECT_ID1) || (data->test_case == TEST_CASE_CONNECT_ID2));
+
+  TSDebug(UTDBG_TAG, "Calling cont_test_handler with event %d", event);
+
+  switch (event) {
+  case TS_EVENT_HTTP_READ_REQUEST_HDR:
+    TSDebug(UTDBG_TAG, "cont_test_handler: event READ_REQUEST");
+
+    // First make sure we're getting called for either request 9 or txn 10
+    // Otherwise, this is a request sent by another test. do nothing.
+    request_id = get_request_id(txnp);
+    TSReleaseAssert(request_id != -1);
+
+    TSDebug(UTDBG_TAG, "cont_test_handler: Request id = %d", request_id);
+
+    if ((request_id != TEST_CASE_CONNECT_ID1) && (request_id != TEST_CASE_CONNECT_ID2)) {
+      TSDebug(UTDBG_TAG, "This is not an event for this test !");
+      TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+      goto done;
+    }
+
+    if ((request_id == TEST_CASE_CONNECT_ID1) && (data->test_case == TEST_CASE_CONNECT_ID1)) {
+      TSDebug(UTDBG_TAG, "Calling TSHttpTxnIntercept");
+      TSHttpTxnIntercept(data->os->accept_cont, txnp);
+    } else if ((request_id == TEST_CASE_CONNECT_ID2) && (data->test_case == TEST_CASE_CONNECT_ID2)) {
+      TSDebug(UTDBG_TAG, "Calling TSHttpTxnServerIntercept");
+      TSHttpTxnServerIntercept(data->os->accept_cont, txnp);
+    }
+
+    TSHttpTxnReenable(txnp, TS_EVENT_HTTP_CONTINUE);
+    break;
+
+  case TS_EVENT_TIMEOUT:
+    /* Browser still waiting the response ? */
+    if (data->browser->status == REQUEST_INPROGRESS) {
+      TSDebug(UTDBG_TAG, "Browser still waiting response...");
+      TSContSchedule(contp, 25, TS_THREAD_POOL_DEFAULT);
+    }
+    /* Browser got the response */
+    else {
+      /* Check if browser response body is the one we expected */
+      char *body_response = get_body_ptr(data->browser->response);
+      const char *body_expected;
+      if (data->test_case == TEST_CASE_CONNECT_ID1) {
+        body_expected = "Body for response 9";
+      } else {
+        body_expected = "Body for response 10";
+      }
+      TSDebug(UTDBG_TAG, "Body Response = \n|%s|\nBody Expected = \n|%s|", body_response ? body_response : "*NULL*", body_expected);
+
+      if (!body_response
+        || strncmp(body_response, body_expected, strlen(body_expected)) != 0
+      ) {
+        if (data->test_case == TEST_CASE_CONNECT_ID1) {
+          SDK_RPRINT(data->test, "TSHttpConnect", "TestCase1", TC_FAIL, "Unexpected response");
+          SDK_RPRINT(data->test, "TSHttpTxnIntercept", "TestCase1", TC_FAIL, "Unexpected response");
+        } else {
+          SDK_RPRINT(data->test, "TSHttpConnect", "TestCase2", TC_FAIL, "Unexpected response");
+          SDK_RPRINT(data->test, "TSHttpTxnServerIntercept", "TestCase2", TC_FAIL, "Unexpected response");
+        }
+        *(data->pstatus) = REGRESSION_TEST_FAILED;
+
+      } else {
+        if (data->test_case == TEST_CASE_CONNECT_ID1) {
+          SDK_RPRINT(data->test, "TSHttpConnect", "TestCase1", TC_PASS, "ok");
+          SDK_RPRINT(data->test, "TSHttpTxnIntercept", "TestCase1", TC_PASS, "ok");
+        } else {
+          SDK_RPRINT(data->test, "TSHttpConnect", "TestCase2", TC_PASS, "ok");
+          SDK_RPRINT(data->test, "TSHttpTxnServerIntercept", "TestCase2", TC_PASS, "ok");
+        }
+        *(data->pstatus) = REGRESSION_TEST_PASSED;
+      }
+
+      // transaction is over. clean it up.
+      synclient_txn_delete(data->browser);
+      synserver_delete(data->os);
+
+      // As we registered to a global hook, we may be called back again.
+      // Do not destroy the continuation...
+      // data->magic = MAGIC_DEAD;
+      // TSfree(data);
+      // TSContDataSet(contp, NULL);
+    }
+    break;
+
+  default:
+    *(data->pstatus) = REGRESSION_TEST_FAILED;
+    SDK_RPRINT(data->test, "TSHttpConnect", "TestCase1 or 2", TC_FAIL, "Unexpected event %d", event);
+    break;
+  }
+
+done:
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_TSHttpConnectIntercept) (RegressionTest * test, int /* atype */, int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSDebug(UTDBG_TAG, "Starting test TSHttpConnectIntercept");
+
+  TSCont cont_test = TSContCreate(cont_test_handler, TSMutexCreate());
+  ConnectTestData *data = (ConnectTestData *) TSmalloc(sizeof(ConnectTestData));
+  TSContDataSet(cont_test, data);
+
+  data->test = test;
+  data->pstatus = pstatus;
+  data->magic = MAGIC_ALIVE;
+  data->test_case = TEST_CASE_CONNECT_ID1;
+
+  /* Register to hook READ_REQUEST */
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont_test);
+
+  // Create a synthetic server which won't really listen on a socket port
+  // It will be called by the Http SM with a VC
+  data->os = synserver_create(SYNSERVER_DUMMY_PORT);
+
+  data->browser = synclient_txn_create();
+  data->request = generate_request(9);
+
+  /* Now send a request to the OS via TS using TSHttpConnect */
+
+  /* ip and log do not matter as it is used for logging only */
+  sockaddr_in addr;
+  ats_ip4_set(&addr, 1, 1);
+  data->vc = TSHttpConnect(ats_ip_sa_cast(&addr));
+  synclient_txn_send_request_to_vc(data->browser, data->request, data->vc);
+
+  /* Wait until transaction is done */
+  TSContSchedule(cont_test, 25, TS_THREAD_POOL_DEFAULT);
+
+  return;
+}
+
+
+EXCLUSIVE_REGRESSION_TEST(SDK_API_TSHttpConnectServerIntercept) (RegressionTest * test, int /* atype ATS_UNUSED */,
+                                                                 int *pstatus)
+{
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  TSDebug(UTDBG_TAG, "Starting test TSHttpConnectServerintercept");
+
+  TSCont cont_test = TSContCreate(cont_test_handler, TSMutexCreate());
+  ConnectTestData *data = (ConnectTestData *) TSmalloc(sizeof(ConnectTestData));
+  TSContDataSet(cont_test, data);
+
+  data->test = test;
+  data->pstatus = pstatus;
+  data->magic = MAGIC_ALIVE;
+  data->test_case = TEST_CASE_CONNECT_ID2;
+
+  /* Register to hook READ_REQUEST */
+  TSHttpHookAdd(TS_HTTP_READ_REQUEST_HDR_HOOK, cont_test);
+
+  /* This is cool ! we can use the code written for the synthetic server and client in InkAPITest.cc */
+  data->os = synserver_create(SYNSERVER_DUMMY_PORT);
+
+  data->browser = synclient_txn_create();
+  data->request = generate_request(10);
+
+  /* Now send a request to the OS via TS using TSHttpConnect */
+
+  /* ip and log do not matter as it is used for logging only */
+  sockaddr_in addr;
+  ats_ip4_set(&addr, 2, 2);
+  data->vc = TSHttpConnect(ats_ip_sa_cast(&addr));
+
+  synclient_txn_send_request_to_vc(data->browser, data->request, data->vc);
+
+  /* Wait until transaction is done */
+  TSContSchedule(cont_test, 25, TS_THREAD_POOL_DEFAULT);
+
+  return;
+}
+
+
+////////////////////////////////////////////////
+// SDK_API_OVERRIDABLE_CONFIGS
+//
+// Unit Test for API: TSHttpTxnConfigFind
+//                    TSHttpTxnConfigIntSet
+//                    TSHttpTxnConfigIntGet
+//                    TSHttpTxnConfigFloatSet
+//                    TSHttpTxnConfigFloatGet
+//                    TSHttpTxnConfigStringSet
+//                    TSHttpTxnConfigStringGet
+////////////////////////////////////////////////
+
+// The order of these should be the same as TSOverridableConfigKey
+const char *SDK_Overridable_Configs[TS_CONFIG_LAST_ENTRY] = {
+  "proxy.config.url_remap.pristine_host_hdr",
+  "proxy.config.http.chunking_enabled",
+  "proxy.config.http.negative_caching_enabled",
+  "proxy.config.http.negative_caching_lifetime",
+  "proxy.config.http.cache.when_to_revalidate",
+  "proxy.config.http.keep_alive_enabled_in",
+  "proxy.config.http.keep_alive_enabled_out",
+  "proxy.config.http.keep_alive_post_out",
+  "proxy.config.http.share_server_sessions",
+  "proxy.config.http.server_session_sharing.pool",
+  "proxy.config.http.server_session_sharing.match",
+  "proxy.config.net.sock_recv_buffer_size_out",
+  "proxy.config.net.sock_send_buffer_size_out",
+  "proxy.config.net.sock_option_flag_out",
+  "proxy.config.http.forward.proxy_auth_to_parent",
+  "proxy.config.http.anonymize_remove_from",
+  "proxy.config.http.anonymize_remove_referer",
+  "proxy.config.http.anonymize_remove_user_agent",
+  "proxy.config.http.anonymize_remove_cookie",
+  "proxy.config.http.anonymize_remove_client_ip",
+  "proxy.config.http.anonymize_insert_client_ip",
+  "proxy.config.http.response_server_enabled",
+  "proxy.config.http.insert_squid_x_forwarded_for",
+  "proxy.config.http.server_tcp_init_cwnd",
+  "proxy.config.http.send_http11_requests",
+  "proxy.config.http.cache.http",
+  "proxy.config.http.cache.cluster_cache_local",
+  "proxy.config.http.cache.ignore_client_no_cache",
+  "proxy.config.http.cache.ignore_client_cc_max_age",
+  "proxy.config.http.cache.ims_on_client_no_cache",
+  "proxy.config.http.cache.ignore_server_no_cache",
+  "proxy.config.http.cache.cache_responses_to_cookies",
+  "proxy.config.http.cache.ignore_authentication",
+  "proxy.config.http.cache.cache_urls_that_look_dynamic",
+  "proxy.config.http.cache.required_headers",
+  "proxy.config.http.insert_request_via_str",
+  "proxy.config.http.insert_response_via_str",
+  "proxy.config.http.cache.heuristic_min_lifetime",
+  "proxy.config.http.cache.heuristic_max_lifetime",
+  "proxy.config.http.cache.guaranteed_min_lifetime",
+  "proxy.config.http.cache.guaranteed_max_lifetime",
+  "proxy.config.http.cache.max_stale_age",
+  "proxy.config.http.keep_alive_no_activity_timeout_in",
+  "proxy.config.http.keep_alive_no_activity_timeout_out",
+  "proxy.config.http.transaction_no_activity_timeout_in",
+  "proxy.config.http.transaction_no_activity_timeout_out",
+  "proxy.config.http.transaction_active_timeout_out",
+  "proxy.config.http.origin_max_connections",
+  "proxy.config.http.connect_attempts_max_retries",
+  "proxy.config.http.connect_attempts_max_retries_dead_server",
+  "proxy.config.http.connect_attempts_rr_retries",
+  "proxy.config.http.connect_attempts_timeout",
+  "proxy.config.http.post_connect_attempts_timeout",
+  "proxy.config.http.down_server.cache_time",
+  "proxy.config.http.down_server.abort_threshold",
+  "proxy.config.http.cache.fuzz.time",
+  "proxy.config.http.cache.fuzz.min_time",
+  "proxy.config.http.doc_in_cache_skip_dns",
+  "proxy.config.http.background_fill_active_timeout",
+  "proxy.config.http.response_server_str",
+  "proxy.config.http.cache.heuristic_lm_factor",
+  "proxy.config.http.cache.fuzz.probability",
+  "proxy.config.http.background_fill_completed_threshold",
+  "proxy.config.net.sock_packet_mark_out",
+  "proxy.config.net.sock_packet_tos_out",
+  "proxy.config.http.insert_age_in_response",
+  "proxy.config.http.chunking.size",
+  "proxy.config.http.flow_control.enabled",
+  "proxy.config.http.flow_control.low_water",
+  "proxy.config.http.flow_control.high_water",
+  "proxy.config.http.cache.range.lookup",
+  "proxy.config.http.normalize_ae_gzip",
+  "proxy.config.http.default_buffer_size",
+  "proxy.config.http.default_buffer_water_mark",
+  "proxy.config.http.request_header_max_size",
+  "proxy.config.http.response_header_max_size",
+  "proxy.config.http.negative_revalidating_enabled",
+  "proxy.config.http.negative_revalidating_lifetime",
+  "proxy.config.http.accept_encoding_filter_enabled",
+  "proxy.config.ssl.hsts_max_age",
+  "proxy.config.ssl.hsts_include_subdomains",
+  "proxy.config.http.cache.open_read_retry_time",
+  "proxy.config.http.cache.max_open_read_retries",
+  "proxy.config.http.cache.range.write",
+};
+
+REGRESSION_TEST(SDK_API_OVERRIDABLE_CONFIGS) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  const char *conf;
+  TSOverridableConfigKey key;
+  TSRecordDataType type;
+  HttpSM* s = HttpSM::allocate();
+  bool success = true;
+  TSHttpTxn txnp = reinterpret_cast<TSHttpTxn>(s);
+  InkRand generator(17);
+  TSMgmtInt ival_read, ival_rand;
+  TSMgmtFloat fval_read, fval_rand;
+  const char *sval_read;
+  const char *test_string = "The Apache Traffic Server";
+  int len;
+
+
+  s->init();
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  for (int i=TS_CONFIG_NULL + 1; i < TS_CONFIG_LAST_ENTRY; ++i) {
+    conf = SDK_Overridable_Configs[i];
+
+    if (TS_SUCCESS == TSHttpTxnConfigFind(conf, -1, &key, &type)) {
+      if (key != i) {
+        SDK_RPRINT(test, "TSHttpTxnConfigFind", "TestCase1", TC_FAIL, "Failed on %s, expected %d, got %d", conf, i, key);
+        success = false;
+        continue;
+      }
+    } else {
+      SDK_RPRINT(test, "TSHttpTxnConfigFind", "TestCase1", TC_FAIL, "Call returned unexpected TS_ERROR for %s",conf);
+      success = false;
+      continue;
+    }
+
+    // Now check the getters / setters
+    switch (type) {
+    case TS_RECORDDATATYPE_INT:
+      ival_rand = generator.random() % 126; // to fit in a signed byte
+      // 4.1 backwards compatibility - remove for 5.0
+      if (TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS == key) ival_rand %= 2;
+      // end BC
+      TSHttpTxnConfigIntSet(txnp, key, ival_rand);
+      TSHttpTxnConfigIntGet(txnp, key, &ival_read);
+      if (ival_rand != ival_read) {
+        SDK_RPRINT(test, "TSHttpTxnConfigIntSet", "TestCase1", TC_FAIL, "Failed on %s, %d != %d", conf,
+                   ival_read, ival_rand);
+        success = false;
+        continue;
+      }
+      break;
+
+    case TS_RECORDDATATYPE_FLOAT:
+      fval_rand = generator.random();
+      TSHttpTxnConfigFloatSet(txnp, key, fval_rand);
+      TSHttpTxnConfigFloatGet(txnp, key, &fval_read);
+      if (fval_rand != fval_read) {
+        SDK_RPRINT(test, "TSHttpTxnConfigFloatSet", "TestCase1", TC_FAIL, "Failed on %s, %f != %f", conf,
+                   fval_read, fval_rand);
+        success = false;
+        continue;
+      }
+      break;
+
+    case TS_RECORDDATATYPE_STRING:
+      TSHttpTxnConfigStringSet(txnp, key, test_string, -1);
+      TSHttpTxnConfigStringGet(txnp, key, &sval_read, &len);
+      if (test_string != sval_read) {
+        SDK_RPRINT(test, "TSHttpTxnConfigStringSet", "TestCase1", TC_FAIL, "Failed on %s, %s != %s", conf,
+                   sval_read, test_string);
+        success = false;
+        continue;
+      }
+      break;
+
+    default:
+      break;
+    }
+  }
+
+  s->destroy();
+  if (success) {
+    *pstatus = REGRESSION_TEST_PASSED;
+    SDK_RPRINT(test, "TSHttpTxnConfigFind", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSHttpTxnConfigIntSet", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSHttpTxnConfigFloatSet", "TestCase1", TC_PASS, "ok");
+    SDK_RPRINT(test, "TSHttpTxnConfigStringSet", "TestCase1", TC_PASS, "ok");
+  } else {
+    *pstatus = REGRESSION_TEST_FAILED;
+  }
+
+  return;
+}
+
+////////////////////////////////////////////////
+// SDK_API_ENCODING
+//
+// Unit Test for API: TSStringPercentEncode
+//                    TSUrlPercentEncode
+//                    TSStringPercentDecode
+////////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_ENCODING) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  const char *url = "http://www.example.com/foo?fie= \"#%<>[]\\^`{}~&bar={test}&fum=Apache Traffic Server";
+  const char *url_encoded =
+    "http://www.example.com/foo?fie=%20%22%23%25%3C%3E%5B%5D%5C%5E%60%7B%7D%7E&bar=%7Btest%7D&fum=Apache%20Traffic%20Server";
+  const char *url_base64 = "aHR0cDovL3d3dy5leGFtcGxlLmNvbS9mb28/ZmllPSAiIyU8PltdXF5ge31+JmJhcj17dGVzdH0mZnVtPUFwYWNoZSBUcmFmZmljIFNlcnZlcg==";
+  const char *url2 = "http://www.example.com/"; // No Percent encoding necessary
+  char buf[1024];
+  size_t length;
+  bool success = true;
+
+  if (TS_SUCCESS != TSStringPercentEncode(url, strlen(url), buf, sizeof(buf), &length, NULL)) {
+    SDK_RPRINT(test, "TSStringPercentEncode", "TestCase1", TC_FAIL, "Failed on %s", url);
+    success = false;
+  } else {
+    if (strcmp(buf, url_encoded)) {
+      SDK_RPRINT(test, "TSStringPercentEncode", "TestCase1", TC_FAIL, "Failed on %s != %s", buf, url_encoded);
+      success = false;
+    } else {
+      SDK_RPRINT(test, "TSStringPercentEncode", "TestCase1", TC_PASS, "ok");
+    }
+  }
+
+  if (TS_SUCCESS != TSStringPercentEncode(url2, strlen(url2), buf, sizeof(buf), &length, NULL)) {
+    SDK_RPRINT(test, "TSStringPercentEncode", "TestCase2", TC_FAIL, "Failed on %s", url2);
+    success = false;
+  } else {
+    if (strcmp(buf, url2)) {
+      SDK_RPRINT(test, "TSStringPercentEncode", "TestCase2", TC_FAIL, "Failed on %s != %s", buf, url2);
+      success = false;
+    } else {
+      SDK_RPRINT(test, "TSStringPercentEncode", "TestCase2", TC_PASS, "ok");
+    }
+  }
+
+  if (TS_SUCCESS != TSStringPercentDecode(url_encoded, strlen(url_encoded), buf, sizeof(buf), &length)) {
+    SDK_RPRINT(test, "TSStringPercentDecode", "TestCase1", TC_FAIL, "Failed on %s", url_encoded);
+    success = false;
+  } else {
+    if (length != strlen(url) || strcmp(buf, url)) {
+      SDK_RPRINT(test, "TSStringPercentDecode", "TestCase1", TC_FAIL, "Failed on %s != %s", buf, url);
+      success = false;
+    } else {
+      SDK_RPRINT(test, "TSStringPercentDecode", "TestCase1", TC_PASS, "ok");
+    }
+  }
+
+  if (TS_SUCCESS != TSStringPercentDecode(url2, strlen(url2), buf, sizeof(buf), &length)) {
+    SDK_RPRINT(test, "TSStringPercentDecode", "TestCase2", TC_FAIL, "Failed on %s", url2);
+    success = false;
+  } else {
+    if (length != strlen(url2) || strcmp(buf, url2)) {
+      SDK_RPRINT(test, "TSStringPercentDecode", "TestCase1", TC_FAIL, "Failed on %s != %s", buf, url2);
+      success = false;
+    } else {
+      SDK_RPRINT(test, "TSStringPercentDecode", "TestCase1", TC_PASS, "ok");
+    }
+  }
+
+  if (TS_SUCCESS != TSBase64Encode(url, strlen(url), buf, sizeof(buf), &length)) {
+    SDK_RPRINT(test, "TSBase64Encode", "TestCase1", TC_FAIL, "Failed on %s", url);
+    success = false;
+  } else {
+    if (length != strlen(url_base64) || strcmp(buf, url_base64)) {
+      SDK_RPRINT(test, "TSBase64Encode", "TestCase1", TC_FAIL, "Failed on %s != %s", buf, url_base64);
+      success = false;
+    }  else {
+      SDK_RPRINT(test, "TSBase64Encode", "TestCase1", TC_PASS, "ok");
+    }
+  }
+
+  if (TS_SUCCESS != TSBase64Decode(url_base64, strlen(url_base64), (unsigned char*)buf, sizeof(buf), &length)) {
+    SDK_RPRINT(test, "TSBase64Decode", "TestCase1", TC_FAIL, "Failed on %s", url_base64);
+    success = false;
+  } else {
+    if (length != strlen(url) || strcmp(buf, url)) {
+      SDK_RPRINT(test, "TSBase64Decode", "TestCase1", TC_FAIL, "Failed on %s != %s", buf, url);
+      success = false;
+    } else {
+      SDK_RPRINT(test, "TSBase64Decode", "TestCase1", TC_PASS, "ok");
+    }
+  }
+
+  *pstatus = success ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED;
+
+  return;
+}
+
+
+
+////////////////////////////////////////////////
+// SDK_API_DEBUG_NAME_LOOKUPS
+//
+// Unit Test for API: TSHttpServerStateNameLookup
+//                    TSHttpHookNameLookup
+//                    TSHttpEventNameLookup
+////////////////////////////////////////////////
+
+REGRESSION_TEST(SDK_API_DEBUG_NAME_LOOKUPS) (RegressionTest * test, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  bool success = true;
+  const char state_name[] = "INACTIVE_TIMEOUT";
+  const char hook_name[] = "TS_HTTP_READ_RESPONSE_HDR_HOOK";
+  const char event_name[] = "VC_EVENT_IMMEDIATE";
+  const char* str;
+
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+
+  str = TSHttpServerStateNameLookup(TS_SRVSTATE_INACTIVE_TIMEOUT);
+  if ((strlen(str) != strlen(state_name) || strcmp(str, state_name))) {
+    SDK_RPRINT(test, "TSHttpServerStateNameLookup", "TestCase1", TC_FAIL, "Failed on %d, expected %s, got %s",
+               TS_SRVSTATE_INACTIVE_TIMEOUT, state_name, str);
+    success = false;
+  } else {
+    SDK_RPRINT(test, "TSHttpServerStateNameLookup", "TestCase1", TC_PASS, "ok");
+  }
+
+
+  str = TSHttpHookNameLookup(TS_HTTP_READ_RESPONSE_HDR_HOOK);
+  if ((strlen(str) != strlen(hook_name) || strcmp(str, hook_name))) {
+    SDK_RPRINT(test, "TSHttpHookNameLookup", "TestCase1", TC_FAIL, "Failed on %d, expected %s, got %s",
+               TS_HTTP_READ_RESPONSE_HDR_HOOK, hook_name, str);
+    success = false;
+  } else {
+    SDK_RPRINT(test, "TSHttpHookNameLookup", "TestCase1", TC_PASS, "ok");
+  }
+
+
+  str = TSHttpEventNameLookup(TS_EVENT_IMMEDIATE);
+  if ((strlen(str) != strlen(event_name) || strcmp(str, event_name))) {
+    SDK_RPRINT(test, "TSHttpEventNameLookup", "TestCase1", TC_FAIL, "Failed on %d, expected %s, got %s",
+               TS_EVENT_IMMEDIATE, hook_name, str);
+    success = false;
+  } else {
+    SDK_RPRINT(test, "TSHttpEventNameLookup", "TestCase1", TC_PASS, "ok");
+  }
+
+
+  *pstatus = success ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED;
+
+  return;
+}
diff --git a/proxy/InkAPITestTool.cc b/proxy/InkAPITestTool.cc
new file mode 100644
index 00000000..bb902e52
--- /dev/null
+++ b/proxy/InkAPITestTool.cc
@@ -0,0 +1,1013 @@
+/** @file
+
+  Implements unit test for SDK APIs
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Regression.h"
+#include "api/ts/ts.h"
+
+#include <arpa/inet.h>          /* For htonl */
+#include "P_Net.h"
+#include <records/I_RecHttp.h>
+
+#define SDBG_TAG "SockServer"
+#define CDBG_TAG "SockClient"
+
+#define IP(a,b,c,d) htonl((a) << 24 | (b) << 16 | (c) << 8 | (d))
+
+#define SET_TEST_HANDLER(_d, _s) {_d = _s;}
+
+#define MAGIC_ALIVE 0xfeedbaba
+#define MAGIC_DEAD  0xdeadbeef
+
+#define SYNSERVER_LISTEN_PORT  3300
+
+#define PROXY_CONFIG_NAME_HTTP_PORT "proxy.config.http.server_port"
+#define PROXY_HTTP_DEFAULT_PORT 8080
+
+#define REQUEST_MAX_SIZE  4095
+#define RESPONSE_MAX_SIZE 4095
+
+#define HTTP_REQUEST_END "\r\n\r\n"
+
+// each request/response includes an identifier as a Mime field
+#define X_REQUEST_ID  "X-Request-ID"
+#define X_RESPONSE_ID "X-Response-ID"
+
+#define ERROR_BODY "TESTING ERROR PAGE"
+#define TRANSFORM_APPEND_STRING "This is a transformed response"
+
+//////////////////////////////////////////////////////////////////////////////
+// STRUCTURES
+//////////////////////////////////////////////////////////////////////////////
+
+typedef int (*TxnHandler) (TSCont contp, TSEvent event, void *data);
+
+/* Server transaction structure */
+typedef struct
+{
+  TSVConn vconn;
+
+  TSVIO read_vio;
+  TSIOBuffer req_buffer;
+  TSIOBufferReader req_reader;
+
+  TSVIO write_vio;
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  char request[REQUEST_MAX_SIZE + 1];
+  int request_len;
+
+  TxnHandler current_handler;
+  unsigned int magic;
+} ServerTxn;
+
+/* Server structure */
+typedef struct
+{
+  int accept_port;
+  TSAction accept_action;
+  TSCont accept_cont;
+  unsigned int magic;
+} SocketServer;
+
+typedef enum
+{
+  REQUEST_SUCCESS,
+  REQUEST_INPROGRESS,
+  REQUEST_FAILURE
+} RequestStatus;
+
+/* Client structure */
+typedef struct
+{
+  TSVConn vconn;
+
+  TSVIO read_vio;
+  TSIOBuffer req_buffer;
+  TSIOBufferReader req_reader;
+
+  TSVIO write_vio;
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  char *request;
+  char response[RESPONSE_MAX_SIZE + 1];
+  int response_len;
+
+  RequestStatus status;
+
+  int connect_port;
+  int local_port;
+  uint64_t connect_ip;
+  TSAction connect_action;
+
+  TxnHandler current_handler;
+
+  unsigned int magic;
+} ClientTxn;
+
+
+//////////////////////////////////////////////////////////////////////////////
+// DECLARATIONS
+//////////////////////////////////////////////////////////////////////////////
+
+/* utility */
+static char *get_body_ptr(const char *request);
+static char *generate_request(int test_case);
+static char *generate_response(const char *request);
+static int get_request_id(TSHttpTxn txnp);
+
+
+/* client side */
+static ClientTxn *synclient_txn_create(void);
+static int synclient_txn_delete(ClientTxn * txn);
+static int synclient_txn_close(TSCont contp);
+static int synclient_txn_send_request(ClientTxn * txn, char *request);
+static int synclient_txn_send_request_to_vc(ClientTxn * txn, char *request, TSVConn vc);
+static int synclient_txn_read_response(TSCont contp);
+static int synclient_txn_read_response_handler(TSCont contp, TSEvent event, void *data);
+static int synclient_txn_write_request(TSCont contp);
+static int synclient_txn_write_request_handler(TSCont contp, TSEvent event, void *data);
+static int synclient_txn_connect_handler(TSCont contp, TSEvent event, void *data);
+static int synclient_txn_main_handler(TSCont contp, TSEvent event, void *data);
+
+/* Server side */
+SocketServer *synserver_create(int port);
+static int synserver_start(SocketServer * s);
+static int synserver_stop(SocketServer * s);
+static int synserver_delete(SocketServer * s);
+static int synserver_accept_handler(TSCont contp, TSEvent event, void *data);
+static int synserver_txn_close(TSCont contp);
+static int synserver_txn_write_response(TSCont contp);
+static int synserver_txn_write_response_handler(TSCont contp, TSEvent event, void *data);
+static int synserver_txn_read_request(TSCont contp);
+static int synserver_txn_read_request_handler(TSCont contp, TSEvent event, void *data);
+static int synserver_txn_main_handler(TSCont contp, TSEvent event, void *data);
+
+//////////////////////////////////////////////////////////////////////////////
+// REQUESTS/RESPONSES GENERATION
+//////////////////////////////////////////////////////////////////////////////
+
+static char *
+get_body_ptr(const char *request)
+{
+  char *ptr = (char *) strstr((const char *) request, (const char *) "\r\n\r\n");
+  return (ptr != NULL) ? (ptr + 4) : NULL;
+}
+
+
+/* Caller must free returned request */
+static char *
+generate_request(int test_case)
+{
+
+// We define request formats.
+// Each format has an X-Request-ID field that contains the id of the testcase
+#define HTTP_REQUEST_DEFAULT_FORMAT  "GET http://127.0.0.1:%d/default.html HTTP/1.0\r\n" \
+                                     "X-Request-ID: %d\r\n" \
+				     "\r\n"
+
+#define HTTP_REQUEST_FORMAT1 "GET http://127.0.0.1:%d/format1.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+			     "\r\n"
+
+#define HTTP_REQUEST_FORMAT2 "GET http://127.0.0.1:%d/format2.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "Content-Type: text/html\r\n" \
+			     "\r\n"
+#define HTTP_REQUEST_FORMAT3 "GET http://127.0.0.1:%d/format3.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+			     "Response: Error\r\n" \
+			     "\r\n"
+#define HTTP_REQUEST_FORMAT4 "GET http://127.0.0.1:%d/format4.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "Request:%d\r\n" \
+                             "\r\n"
+#define HTTP_REQUEST_FORMAT5 "GET http://127.0.0.1:%d/format5.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "Request:%d\r\n" \
+                             "\r\n"
+#define HTTP_REQUEST_FORMAT6 "GET http://127.0.0.1:%d/format.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "Accept-Language: English\r\n" \
+                             "\r\n"
+#define HTTP_REQUEST_FORMAT7 "GET http://127.0.0.1:%d/format.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "Accept-Language: French\r\n" \
+                             "\r\n"
+#define HTTP_REQUEST_FORMAT8 "GET http://127.0.0.1:%d/format.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "Accept-Language: English,French\r\n" \
+                             "\r\n"
+#define HTTP_REQUEST_FORMAT9 "GET http://trafficserver.apache.org/format9.html HTTP/1.0\r\n" \
+			     "X-Request-ID: %d\r\n" \
+                             "\r\n"
+#define HTTP_REQUEST_FORMAT10 "GET http://trafficserver.apache.org/format10.html HTTP/1.0\r\n" \
+			      "X-Request-ID: %d\r\n" \
+                              "\r\n"
+
+  char *request = (char *) TSmalloc(REQUEST_MAX_SIZE + 1);
+
+  switch (test_case) {
+  case 1:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT1, SYNSERVER_LISTEN_PORT, test_case);
+    break;
+  case 2:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT2, SYNSERVER_LISTEN_PORT, test_case);
+    break;
+  case 3:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT3, SYNSERVER_LISTEN_PORT, test_case);
+    break;
+  case 4:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT4, SYNSERVER_LISTEN_PORT, test_case, 1);
+    break;
+  case 5:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT5, SYNSERVER_LISTEN_PORT, test_case, 2);
+    break;
+  case 6:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT6, SYNSERVER_LISTEN_PORT, test_case);
+    break;
+  case 7:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT7, SYNSERVER_LISTEN_PORT, test_case - 1);
+    break;
+  case 8:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT8, SYNSERVER_LISTEN_PORT, test_case - 2);
+    break;
+  case 9:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT9, test_case);
+    break;
+  case 10:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_FORMAT10, test_case);
+    break;
+  default:
+    snprintf(request, REQUEST_MAX_SIZE + 1, HTTP_REQUEST_DEFAULT_FORMAT, SYNSERVER_LISTEN_PORT, test_case);
+    break;
+  }
+
+  return request;
+}
+
+
+/* Caller must free returned response */
+static char *
+generate_response(const char *request)
+{
+// define format for response
+// Each response contains a field X-Response-ID that contains the id of the testcase
+#define HTTP_REQUEST_TESTCASE_FORMAT "GET %1024s HTTP/1.%d\r\n" \
+                                     "X-Request-ID: %d\r\n"
+
+#define HTTP_RESPONSE_DEFAULT_FORMAT "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+                              "Content-Type: text/html\r\n" \
+			      "\r\n" \
+			      "Default body"
+
+#define HTTP_RESPONSE_FORMAT1 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Content-Type: text/html\r\n" \
+			      "Cache-Control: no-cache\r\n" \
+			      "\r\n" \
+			      "Body for response 1"
+
+#define HTTP_RESPONSE_FORMAT2 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+                              "Content-Type: text/html\r\n" \
+			      "\r\n" \
+			      "Body for response 2"
+#define HTTP_RESPONSE_FORMAT4 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+                              "Content-Type: text/html\r\n" \
+                              "\r\n" \
+                              "Body for response 4"
+#define HTTP_RESPONSE_FORMAT5 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Content-Type: text/html\r\n" \
+                              "\r\n" \
+                              "Body for response 5"
+#define HTTP_RESPONSE_FORMAT6 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+                              "Content-Language: English\r\n" \
+                              "\r\n" \
+                              "Body for response 6"
+#define HTTP_RESPONSE_FORMAT7 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+                              "Content-Language: French\r\n" \
+                              "\r\n" \
+                              "Body for response 7"
+
+#define HTTP_RESPONSE_FORMAT8 "HTTP/1.0 200 OK\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+                              "Content-Language: French, English\r\n" \
+                              "\r\n" \
+                              "Body for response 8"
+
+#define HTTP_RESPONSE_FORMAT9 "HTTP/1.0 200 OK\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "\r\n" \
+                              "Body for response 9"
+
+#define HTTP_RESPONSE_FORMAT10 "HTTP/1.0 200 OK\r\n" \
+                              "Cache-Control: max-age=86400\r\n" \
+			      "X-Response-ID: %d\r\n" \
+                              "\r\n" \
+                              "Body for response 10"
+
+
+  int test_case, match, http_version;
+
+  char *response = (char *) TSmalloc(RESPONSE_MAX_SIZE + 1);
+  char url[1025];
+
+  // coverity[secure_coding]
+  match = sscanf(request, HTTP_REQUEST_TESTCASE_FORMAT, url, &http_version, &test_case);
+  if (match == 3) {
+    switch (test_case) {
+    case 1:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT1, test_case);
+      break;
+    case 2:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT2, test_case);
+      break;
+    case 4:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT4, test_case);
+      break;
+    case 5:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT5, test_case);
+      break;
+    case 6:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT6, test_case);
+      break;
+    case 7:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT7, test_case);
+      break;
+    case 8:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT8, test_case);
+      break;
+    case 9:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT9, test_case);
+      break;
+    case 10:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_FORMAT10, test_case);
+      break;
+    default:
+      snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_DEFAULT_FORMAT, test_case);
+      break;
+    }
+  } else {
+    /* Didin't recognize a testcase request. send the default response */
+    snprintf(response, RESPONSE_MAX_SIZE + 1, HTTP_RESPONSE_DEFAULT_FORMAT, test_case);
+  }
+
+  return response;
+}
+
+
+// This routine can be called by tests, from the READ_REQUEST_HDR_HOOK
+// to figure out the id of a test message
+// Returns id/-1 in case of error
+static int
+get_request_id(TSHttpTxn txnp)
+{
+  TSMBuffer bufp;
+  TSMLoc hdr_loc, id_loc;
+  int id = -1;
+
+  if (TSHttpTxnClientReqGet(txnp, &bufp, &hdr_loc) != TS_SUCCESS) {
+    return -1;
+  }
+
+  id_loc = TSMimeHdrFieldFind(bufp, hdr_loc, X_REQUEST_ID, -1);
+  if (id_loc == TS_NULL_MLOC) {
+    TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+    return -1;
+  }
+
+  id = TSMimeHdrFieldValueIntGet(bufp, hdr_loc, id_loc, 0);
+
+  TSHandleMLocRelease(bufp, hdr_loc, id_loc);
+  TSHandleMLocRelease(bufp, TS_NULL_MLOC, hdr_loc);
+  return id;
+}
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+// SOCKET CLIENT
+//////////////////////////////////////////////////////////////////////////////
+
+static ClientTxn *
+synclient_txn_create(void)
+{
+  HttpProxyPort* proxy_port;
+  
+  ClientTxn *txn = (ClientTxn *) TSmalloc(sizeof(ClientTxn));
+  if (0 == (proxy_port = HttpProxyPort::findHttp(AF_INET)))
+    txn->connect_port = PROXY_HTTP_DEFAULT_PORT;
+  else
+    txn->connect_port = proxy_port->m_port;
+
+  txn->local_port = (int) 0;
+  txn->connect_ip = IP(127, 0, 0, 1);
+  txn->status = REQUEST_INPROGRESS;
+  txn->request = NULL;
+  txn->vconn = NULL;
+  txn->req_buffer = NULL;
+  txn->req_reader = NULL;
+  txn->resp_buffer = NULL;
+  txn->resp_reader = NULL;
+  txn->magic = MAGIC_ALIVE;
+  txn->connect_action = NULL;
+
+  TSDebug(CDBG_TAG, "Connecting to proxy 127.0.0.1 on port %d", txn->connect_port);
+  return txn;
+}
+
+static int
+synclient_txn_delete(ClientTxn * txn)
+{
+  TSAssert(txn->magic == MAGIC_ALIVE);
+  if (txn->connect_action && !TSActionDone(txn->connect_action)) {
+    TSActionCancel(txn->connect_action);
+    txn->connect_action = NULL;
+  }
+
+  ats_free(txn->request);
+  txn->magic = MAGIC_DEAD;
+  TSfree(txn);
+  return 1;
+}
+
+static int
+synclient_txn_close(TSCont contp)
+{
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  if (txn->vconn != NULL) {
+    TSVConnClose(txn->vconn);
+  }
+  if (txn->req_buffer != NULL) {
+    TSIOBufferDestroy(txn->req_buffer);
+  }
+  if (txn->resp_buffer != NULL) {
+    TSIOBufferDestroy(txn->resp_buffer);
+  }
+
+  TSContDestroy(contp);
+
+  TSDebug(CDBG_TAG, "Client Txn destroyed");
+  return TS_EVENT_IMMEDIATE;
+}
+
+static int
+synclient_txn_send_request(ClientTxn * txn, char *request)
+{
+  TSCont cont;
+  sockaddr_in addr;
+
+  TSAssert(txn->magic == MAGIC_ALIVE);
+  txn->request = ats_strdup(request);
+  SET_TEST_HANDLER(txn->current_handler, synclient_txn_connect_handler);
+
+  cont = TSContCreate(synclient_txn_main_handler, TSMutexCreate());
+  TSContDataSet(cont, txn);
+  
+  ats_ip4_set(&addr, txn->connect_ip, htons(txn->connect_port));
+  TSNetConnect(cont, ats_ip_sa_cast(&addr));
+  return 1;
+}
+
+/* This can be used to send a request to a specific VC */
+static int
+synclient_txn_send_request_to_vc(ClientTxn * txn, char *request, TSVConn vc)
+{
+  TSCont cont;
+  TSAssert(txn->magic == MAGIC_ALIVE);
+  txn->request = ats_strdup(request);
+  SET_TEST_HANDLER(txn->current_handler, synclient_txn_connect_handler);
+
+  cont = TSContCreate(synclient_txn_main_handler, TSMutexCreate());
+  TSContDataSet(cont, txn);
+
+  TSContCall(cont, TS_EVENT_NET_CONNECT, vc);
+  return 1;
+}
+
+
+static int
+synclient_txn_read_response(TSCont contp)
+{
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  TSIOBufferBlock block = TSIOBufferReaderStart(txn->resp_reader);
+  while (block != NULL) {
+    int64_t blocklen;
+    const char *blockptr = TSIOBufferBlockReadStart(block, txn->resp_reader, &blocklen);
+
+    if (txn->response_len+blocklen <= RESPONSE_MAX_SIZE) {
+      memcpy((char *) (txn->response + txn->response_len), blockptr, blocklen);
+      txn->response_len += blocklen;
+    } else {
+      TSError("Error: Response length %" PRId64" > response buffer size %d", txn->response_len+blocklen, RESPONSE_MAX_SIZE);
+    }
+
+    block = TSIOBufferBlockNext(block);
+  }
+
+  txn->response[txn->response_len + 1] = '\0';
+  TSDebug(CDBG_TAG, "Response = |%s|, req len = %d", txn->response, txn->response_len);
+
+  return 1;
+}
+
+static int
+synclient_txn_read_response_handler(TSCont contp, TSEvent event, void * /* data ATS_UNUSED */)
+{
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  int64_t avail;
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    if (event == TS_EVENT_VCONN_READ_READY) {
+      TSDebug(CDBG_TAG, "READ_READY");
+    } else {
+      TSDebug(CDBG_TAG, "READ_COMPLETE");
+    }
+
+    avail = TSIOBufferReaderAvail(txn->resp_reader);
+    TSDebug(CDBG_TAG, "%" PRId64" bytes available in buffer", avail);
+
+    if (avail > 0) {
+      synclient_txn_read_response(contp);
+      TSIOBufferReaderConsume(txn->resp_reader, avail);
+    }
+
+    TSVIOReenable(txn->read_vio);
+    break;
+
+  case TS_EVENT_VCONN_EOS:
+    TSDebug(CDBG_TAG, "READ_EOS");
+    // Connection closed. In HTTP/1.0 it means we're done for this request.
+    txn->status = REQUEST_SUCCESS;
+    return synclient_txn_close(contp);
+    break;
+
+  case TS_EVENT_ERROR:
+    TSDebug(CDBG_TAG, "READ_ERROR");
+    txn->status = REQUEST_FAILURE;
+    return synclient_txn_close(contp);
+    break;
+
+  default:
+    TSAssert(!"Invalid event");
+    break;
+  }
+  return 1;
+}
+
+
+static int
+synclient_txn_write_request(TSCont contp)
+{
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  TSIOBufferBlock block;
+  char *ptr_block;
+  int64_t len, ndone, ntodo, towrite, avail;
+
+  len = strlen(txn->request);
+
+  ndone = 0;
+  ntodo = len;
+  while (ntodo > 0) {
+    block = TSIOBufferStart(txn->req_buffer);
+    ptr_block = TSIOBufferBlockWriteStart(block, &avail);
+    towrite = MIN(ntodo, avail);
+    memcpy(ptr_block, txn->request + ndone, towrite);
+    TSIOBufferProduce(txn->req_buffer, towrite);
+    ntodo -= towrite;
+    ndone += towrite;
+  }
+
+  /* Start writing the response */
+  TSDebug(CDBG_TAG, "Writing |%s| (%" PRId64") bytes", txn->request, len);
+  txn->write_vio = TSVConnWrite(txn->vconn, contp, txn->req_reader, len);
+
+  return 1;
+}
+
+static int
+synclient_txn_write_request_handler(TSCont contp, TSEvent event, void * /* data ATS_UNUSED */)
+{
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSDebug(CDBG_TAG, "WRITE_READY");
+    TSVIOReenable(txn->write_vio);
+    break;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug(CDBG_TAG, "WRITE_COMPLETE");
+    // Weird: synclient should not close the write part of vconn.
+    // Otherwise some strangeness...
+
+    /* Start reading */
+    SET_TEST_HANDLER(txn->current_handler, synclient_txn_read_response_handler);
+    txn->read_vio = TSVConnRead(txn->vconn, contp, txn->resp_buffer, INT64_MAX);
+    break;
+
+  case TS_EVENT_VCONN_EOS:
+    TSDebug(CDBG_TAG, "WRITE_EOS");
+    txn->status = REQUEST_FAILURE;
+    return synclient_txn_close(contp);
+    break;
+
+  case TS_EVENT_ERROR:
+    TSDebug(CDBG_TAG, "WRITE_ERROR");
+    txn->status = REQUEST_FAILURE;
+    return synclient_txn_close(contp);
+    break;
+
+  default:
+    TSAssert(!"Invalid event");
+    break;
+  }
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synclient_txn_connect_handler(TSCont contp, TSEvent event, void *data)
+{
+  TSAssert((event == TS_EVENT_NET_CONNECT) || (event == TS_EVENT_NET_CONNECT_FAILED));
+
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  if (event == TS_EVENT_NET_CONNECT) {
+    TSDebug(CDBG_TAG, "NET_CONNECT");
+
+    txn->req_buffer = TSIOBufferCreate();
+    txn->req_reader = TSIOBufferReaderAlloc(txn->req_buffer);
+    txn->resp_buffer = TSIOBufferCreate();
+    txn->resp_reader = TSIOBufferReaderAlloc(txn->resp_buffer);
+
+    txn->response[0] = '\0';
+    txn->response_len = 0;
+
+    txn->vconn = (TSVConn) data;
+    txn->local_port = (int) ((NetVConnection *) data)->get_local_port();
+
+    txn->write_vio = NULL;
+    txn->read_vio = NULL;
+
+    /* start writing */
+    SET_TEST_HANDLER(txn->current_handler, synclient_txn_write_request_handler);
+    synclient_txn_write_request(contp);
+
+    return TS_EVENT_IMMEDIATE;
+  } else {
+    TSDebug(CDBG_TAG, "NET_CONNECT_FAILED");
+    txn->status = REQUEST_FAILURE;
+    synclient_txn_close(contp);
+  }
+
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synclient_txn_main_handler(TSCont contp, TSEvent event, void *data)
+{
+  ClientTxn *txn = (ClientTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  TxnHandler handler = txn->current_handler;
+  return (*handler) (contp, event, data);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+// SOCKET SERVER
+//////////////////////////////////////////////////////////////////////////////
+
+SocketServer *
+synserver_create(int port)
+{
+  SocketServer *s = (SocketServer *) TSmalloc(sizeof(SocketServer));
+  s->magic = MAGIC_ALIVE;
+  s->accept_port = port;
+  s->accept_action = NULL;
+  s->accept_cont = TSContCreate(synserver_accept_handler, TSMutexCreate());
+  TSContDataSet(s->accept_cont, s);
+  return s;
+}
+
+static int
+synserver_start(SocketServer * s)
+{
+  TSAssert(s->magic == MAGIC_ALIVE);
+  s->accept_action = TSNetAccept(s->accept_cont, s->accept_port, -1, 0);
+  return 1;
+}
+
+static int
+synserver_stop(SocketServer * s)
+{
+  TSAssert(s->magic == MAGIC_ALIVE);
+  if (s->accept_action && !TSActionDone(s->accept_action)) {
+    TSActionCancel(s->accept_action);
+    s->accept_action = NULL;
+    TSDebug(SDBG_TAG, "Had to cancel action");
+  }
+  TSDebug(SDBG_TAG, "stopped");
+  return 1;
+}
+
+static int
+synserver_delete(SocketServer * s)
+{
+  TSAssert(s->magic == MAGIC_ALIVE);
+  synserver_stop(s);
+
+  if (s->accept_cont) {
+    TSContDestroy(s->accept_cont);
+    s->accept_cont = NULL;
+    TSDebug(SDBG_TAG, "destroyed accept cont");
+  }
+  s->magic = MAGIC_DEAD;
+  TSfree(s);
+  TSDebug(SDBG_TAG, "deleted server");
+  return 1;
+}
+
+static int
+synserver_accept_handler(TSCont contp, TSEvent event, void *data)
+{
+  TSAssert((event == TS_EVENT_NET_ACCEPT) || (event == TS_EVENT_NET_ACCEPT_FAILED));
+
+  SocketServer *s = (SocketServer *) TSContDataGet(contp);
+  TSAssert(s->magic == MAGIC_ALIVE);
+
+  if (event == TS_EVENT_NET_ACCEPT_FAILED) {
+    Warning("Synserver failed to bind to port %d.", ntohs(s->accept_port));
+    ink_release_assert(!"Synserver must be able to bind to a port, check system netstat");
+    TSDebug(SDBG_TAG, "NET_ACCEPT_FAILED");
+    return TS_EVENT_IMMEDIATE;
+  }
+
+  TSDebug(SDBG_TAG, "NET_ACCEPT");
+
+  /* Create a new transaction */
+  ServerTxn *txn = (ServerTxn *) TSmalloc(sizeof(ServerTxn));
+  txn->magic = MAGIC_ALIVE;
+
+  SET_TEST_HANDLER(txn->current_handler, synserver_txn_read_request_handler);
+
+  TSCont txn_cont = TSContCreate(synserver_txn_main_handler, TSMutexCreate());
+  TSContDataSet(txn_cont, txn);
+
+  txn->req_buffer = TSIOBufferCreate();
+  txn->req_reader = TSIOBufferReaderAlloc(txn->req_buffer);
+
+  txn->resp_buffer = TSIOBufferCreate();
+  txn->resp_reader = TSIOBufferReaderAlloc(txn->resp_buffer);
+
+  txn->request[0] = '\0';
+  txn->request_len = 0;
+
+  txn->vconn = (TSVConn) data;
+
+  txn->write_vio = NULL;
+
+  /* start reading */
+  txn->read_vio = TSVConnRead(txn->vconn, txn_cont, txn->req_buffer, INT64_MAX);
+
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synserver_txn_close(TSCont contp)
+{
+  ServerTxn *txn = (ServerTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  if (txn->vconn != NULL) {
+    TSVConnClose(txn->vconn);
+  }
+  if (txn->req_buffer) {
+    TSIOBufferDestroy(txn->req_buffer);
+  }
+  if (txn->resp_buffer) {
+    TSIOBufferDestroy(txn->resp_buffer);
+  }
+
+  txn->magic = MAGIC_DEAD;
+  TSfree(txn);
+  TSContDestroy(contp);
+
+  TSDebug(SDBG_TAG, "Server Txn destroyed");
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synserver_txn_write_response(TSCont contp)
+{
+  ServerTxn *txn = (ServerTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  SET_TEST_HANDLER(txn->current_handler, synserver_txn_write_response_handler);
+
+  TSIOBufferBlock block;
+  char *ptr_block;
+  int64_t len, ndone, ntodo, towrite, avail;
+  char *response;
+
+  response = generate_response(txn->request);
+  len = strlen(response);
+
+  ndone = 0;
+  ntodo = len;
+  while (ntodo > 0) {
+    block = TSIOBufferStart(txn->resp_buffer);
+    ptr_block = TSIOBufferBlockWriteStart(block, &avail);
+    towrite = MIN(ntodo, avail);
+    memcpy(ptr_block, response + ndone, towrite);
+    TSIOBufferProduce(txn->resp_buffer, towrite);
+    ntodo -= towrite;
+    ndone += towrite;
+  }
+
+  /* Start writing the response */
+  TSDebug(SDBG_TAG, "Writing response: |%s| (%" PRId64") bytes)", response, len);
+  txn->write_vio = TSVConnWrite(txn->vconn, contp, txn->resp_reader, len);
+
+  /* Now that response is in IOBuffer, free up response */
+  TSfree(response);
+
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synserver_txn_write_response_handler(TSCont contp, TSEvent event, void * /* data ATS_UNUSED */)
+{
+  ServerTxn *txn = (ServerTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  switch (event) {
+  case TS_EVENT_VCONN_WRITE_READY:
+    TSDebug(SDBG_TAG, "WRITE_READY");
+    TSVIOReenable(txn->write_vio);
+    break;
+
+  case TS_EVENT_VCONN_WRITE_COMPLETE:
+    TSDebug(SDBG_TAG, "WRITE_COMPLETE");
+    TSVConnShutdown(txn->vconn, 0, 1);
+    return synserver_txn_close(contp);
+    break;
+
+  case TS_EVENT_VCONN_EOS:
+    TSDebug(SDBG_TAG, "WRITE_EOS");
+    return synserver_txn_close(contp);
+    break;
+
+  case TS_EVENT_ERROR:
+    TSDebug(SDBG_TAG, "WRITE_ERROR");
+    return synserver_txn_close(contp);
+    break;
+
+  default:
+    TSAssert(!"Invalid event");
+    break;
+  }
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synserver_txn_read_request(TSCont contp)
+{
+  ServerTxn *txn = (ServerTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  int end;
+  TSIOBufferBlock block = TSIOBufferReaderStart(txn->req_reader);
+
+  while (block != NULL) {
+    int64_t blocklen;
+    const char *blockptr = TSIOBufferBlockReadStart(block, txn->req_reader, &blocklen);
+
+    if (txn->request_len+blocklen <= REQUEST_MAX_SIZE) {
+      memcpy((char *) (txn->request + txn->request_len), blockptr, blocklen);
+      txn->request_len += blocklen;
+    } else {
+      TSError("Error: Request length %" PRId64" > request buffer size %d", txn->request_len+blocklen, REQUEST_MAX_SIZE);
+    }
+
+    block = TSIOBufferBlockNext(block);
+  }
+
+  txn->request[txn->request_len] = '\0';
+  TSDebug(SDBG_TAG, "Request = |%s|, req len = %d", txn->request, txn->request_len);
+
+  end = (strstr(txn->request, HTTP_REQUEST_END) != NULL);
+  TSDebug(SDBG_TAG, "End of request = %d", end);
+
+  return end;
+}
+
+static int
+synserver_txn_read_request_handler(TSCont contp, TSEvent event, void * /* data ATS_UNUSED */)
+{
+  ServerTxn *txn = (ServerTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  int64_t avail;
+  int end_of_request;
+
+  switch (event) {
+  case TS_EVENT_VCONN_READ_READY:
+  case TS_EVENT_VCONN_READ_COMPLETE:
+    TSDebug(SDBG_TAG, (event == TS_EVENT_VCONN_READ_READY) ? "READ_READY" : "READ_COMPLETE");
+    avail = TSIOBufferReaderAvail(txn->req_reader);
+    TSDebug(SDBG_TAG, "%" PRId64" bytes available in buffer", avail);
+
+    if (avail > 0) {
+      end_of_request = synserver_txn_read_request(contp);
+      TSIOBufferReaderConsume(txn->req_reader, avail);
+
+      if (end_of_request) {
+        TSVConnShutdown(txn->vconn, 1, 0);
+        return synserver_txn_write_response(contp);
+      }
+    }
+
+    TSVIOReenable(txn->read_vio);
+    break;
+
+  case TS_EVENT_VCONN_EOS:
+    TSDebug(SDBG_TAG, "READ_EOS");
+    return synserver_txn_close(contp);
+    break;
+
+  case TS_EVENT_ERROR:
+    TSDebug(SDBG_TAG, "READ_ERROR");
+    return synserver_txn_close(contp);
+    break;
+
+  default:
+    TSAssert(!"Invalid event");
+    break;
+  }
+  return TS_EVENT_IMMEDIATE;
+}
+
+
+static int
+synserver_txn_main_handler(TSCont contp, TSEvent event, void *data)
+{
+  ServerTxn *txn = (ServerTxn *) TSContDataGet(contp);
+  TSAssert(txn->magic == MAGIC_ALIVE);
+
+  TxnHandler handler = txn->current_handler;
+  return (*handler) (contp, event, data);
+}
+
diff --git a/proxy/InkIOCoreAPI.cc b/proxy/InkIOCoreAPI.cc
new file mode 100644
index 00000000..26f3298d
--- /dev/null
+++ b/proxy/InkIOCoreAPI.cc
@@ -0,0 +1,755 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+ * This file contains all the functions exported by the IOCore to the SDK.
+ * Any IOCore symbol accessed by a plugin directly should be called in this
+ * file to ensure that it gets exported as a global symbol in TS
+ */
+
+#include "libts.h"
+#include "api/ts/InkAPIPrivateIOCore.h"
+#if defined(solaris) && !defined(__GNUC__)
+#include "P_EventSystem.h" // I_EventSystem.h
+#include "P_Net.h"         // I_Net.h
+#else
+#include "I_EventSystem.h"
+#include "I_Net.h"
+#endif
+#include "I_Cache.h"
+#include "I_HostDB.h"
+
+// This assert is for internal API use only.
+#if TS_USE_FAST_SDK
+#define sdk_assert(EX) (void)(EX)
+#else
+#define sdk_assert(EX)                                          \
+  ( (void)((EX) ? (void)0 : _TSReleaseAssert(#EX, __FILE__, __LINE__)) )
+#endif
+
+
+TSReturnCode
+sdk_sanity_check_mutex(TSMutex mutex)
+{
+  if (mutex == NULL)
+    return TS_ERROR;
+
+  ProxyMutex *mutexp = (ProxyMutex *) mutex;
+
+  if (mutexp->m_refcount < 0)
+    return TS_ERROR;
+  if (mutexp->nthread_holding < 0)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+
+TSReturnCode
+sdk_sanity_check_hostlookup_structure(TSHostLookupResult data)
+{
+  if (data == NULL)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+TSReturnCode
+sdk_sanity_check_iocore_structure(void *data)
+{
+  if (data == NULL)
+    return TS_ERROR;
+
+  return TS_SUCCESS;
+}
+
+// From InkAPI.cc
+TSReturnCode sdk_sanity_check_continuation(TSCont cont);
+TSReturnCode sdk_sanity_check_null_ptr(void *ptr);
+
+
+////////////////////////////////////////////////////////////////////
+//
+// Threads
+//
+////////////////////////////////////////////////////////////////////
+struct INKThreadInternal:public EThread
+{
+  INKThreadInternal()
+    : EThread(DEDICATED, -1)
+  {  }
+
+  TSThreadFunc func;
+  void *data;
+};
+
+static void *
+ink_thread_trampoline(void *data)
+{
+  INKThreadInternal *thread;
+  void *retval;
+
+  thread = (INKThreadInternal *) data;
+  thread->set_specific();
+  retval = thread->func(thread->data);
+  delete thread;
+
+  return retval;
+}
+
+/*
+ * INKqa12653. Return TSThread or NULL if error
+ */
+TSThread
+TSThreadCreate(TSThreadFunc func, void *data)
+{
+  INKThreadInternal *thread;
+
+  thread = new INKThreadInternal;
+
+  ink_assert(thread->event_types == 0);
+
+  thread->func = func;
+  thread->data = data;
+
+  if (!(ink_thread_create(ink_thread_trampoline, (void *)thread, 1))) {
+    return (TSThread)NULL;
+  }
+
+  return (TSThread)thread;
+}
+
+TSThread
+TSThreadInit()
+{
+  INKThreadInternal *thread;
+
+  thread = new INKThreadInternal;
+
+#ifdef DEBUG
+  if (thread == NULL)
+    return (TSThread)NULL;
+#endif
+
+  thread->set_specific();
+
+  return reinterpret_cast<TSThread>(thread);
+}
+
+void
+TSThreadDestroy(TSThread thread)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(thread) == TS_SUCCESS);
+
+  INKThreadInternal *ithread = (INKThreadInternal *)thread;
+  delete ithread;
+}
+
+TSThread
+TSThreadSelf(void)
+{
+  TSThread ithread = (TSThread)this_ethread();
+  return ithread;
+}
+
+
+////////////////////////////////////////////////////////////////////
+//
+// Mutexes
+//
+////////////////////////////////////////////////////////////////////
+TSMutex
+TSMutexCreate()
+{
+  ProxyMutex *mutexp = new_ProxyMutex();
+
+  // TODO: Remove this when allocations can never fail.
+  sdk_assert(sdk_sanity_check_mutex((TSMutex)mutexp) == TS_SUCCESS);
+
+  return (TSMutex)mutexp;
+}
+
+/* The following two APIs are for Into work, actually, APIs of Mutex
+   should allow plugins to manually increase or decrease the refcount
+   of the mutex pointer, plugins may want more control of the creation
+   and destroy of the mutex.*/
+TSMutex
+TSMutexCreateInternal()
+{
+  ProxyMutex *new_mutex = new_ProxyMutex();
+
+  // TODO: Remove this when allocations can never fail.
+  sdk_assert(sdk_sanity_check_mutex((TSMutex)new_mutex) == TS_SUCCESS);
+
+  new_mutex->refcount_inc();
+  return reinterpret_cast<TSMutex>(new_mutex);
+}
+
+int
+TSMutexCheck(TSMutex mutex)
+{
+  ProxyMutex *mutexp = (ProxyMutex *)mutex;
+
+  if (mutexp->m_refcount < 0)
+    return -1;
+  if (mutexp->nthread_holding < 0)
+    return -1;
+  return 1;
+}
+
+void
+TSMutexLock(TSMutex mutexp)
+{
+  sdk_assert(sdk_sanity_check_mutex(mutexp) == TS_SUCCESS);
+  MUTEX_TAKE_LOCK((ProxyMutex *)mutexp, this_ethread());
+}
+
+
+TSReturnCode
+TSMutexLockTry(TSMutex mutexp)
+{
+  sdk_assert(sdk_sanity_check_mutex(mutexp) == TS_SUCCESS);
+  return (MUTEX_TAKE_TRY_LOCK((ProxyMutex *)mutexp, this_ethread()) ? TS_SUCCESS : TS_ERROR);
+}
+
+void
+TSMutexUnlock(TSMutex mutexp)
+{
+  sdk_assert(sdk_sanity_check_mutex(mutexp) == TS_SUCCESS);
+  MUTEX_UNTAKE_LOCK((ProxyMutex *)mutexp, this_ethread());
+}
+
+/* VIOs */
+
+void
+TSVIOReenable(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  vio->reenable();
+}
+
+TSIOBuffer
+TSVIOBufferGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return reinterpret_cast<TSIOBuffer>(vio->get_writer());
+}
+
+TSIOBufferReader
+TSVIOReaderGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return reinterpret_cast<TSIOBufferReader>(vio->get_reader());
+}
+
+int64_t
+TSVIONBytesGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return vio->nbytes;
+}
+
+void
+TSVIONBytesSet(TSVIO viop, int64_t nbytes)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+  sdk_assert(nbytes >= 0);
+
+  VIO *vio = (VIO *)viop;
+  vio->nbytes = nbytes;
+}
+
+int64_t
+TSVIONDoneGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return vio->ndone;
+}
+
+void
+TSVIONDoneSet(TSVIO viop, int64_t ndone)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+  sdk_assert(ndone >= 0);
+
+  VIO *vio = (VIO *)viop;
+  vio->ndone = ndone;
+}
+
+int64_t
+TSVIONTodoGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return vio->ntodo();
+}
+
+TSCont
+TSVIOContGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return (TSCont) vio->_cont;
+}
+
+TSVConn
+TSVIOVConnGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return (TSVConn)vio->vc_server;
+}
+
+TSMutex
+TSVIOMutexGet(TSVIO viop)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(viop) == TS_SUCCESS);
+
+  VIO *vio = (VIO *)viop;
+  return (TSMutex)((ProxyMutex *)vio->mutex);
+}
+
+/* High Resolution Time */
+
+ink_hrtime
+INKBasedTimeGet()
+{
+  return ink_get_based_hrtime();
+}
+
+/* UDP Connection Interface */
+
+TSAction
+INKUDPBind(TSCont contp, unsigned int ip, int port)
+{  
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+    
+  FORCE_PLUGIN_MUTEX(contp);
+
+  struct sockaddr_in addr;
+  ats_ip4_set(&addr, ip, htons(port));
+  
+  return reinterpret_cast<TSAction>(udpNet.UDPBind((Continuation *)contp, ats_ip_sa_cast(&addr), INK_ETHERNET_MTU_SIZE, INK_ETHERNET_MTU_SIZE));
+}
+
+TSAction
+INKUDPSendTo(TSCont contp, INKUDPConn udp, unsigned int ip, int port, char *data, int64_t len)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+  UDPPacket *packet = new_UDPPacket();
+  UDPConnection *conn = (UDPConnection *)udp;
+
+  ats_ip4_set(&packet->to, ip, htons(port));
+
+  IOBufferBlock *blockp = new_IOBufferBlock();
+  blockp->alloc(BUFFER_SIZE_INDEX_32K);
+
+  if (len > index_to_buffer_size(BUFFER_SIZE_INDEX_32K)) {
+    len = index_to_buffer_size(BUFFER_SIZE_INDEX_32K) - 1;
+  }
+
+  memcpy(blockp->start(), data, len);
+  blockp->fill(len);
+
+  packet->append_block((IOBufferBlock *)blockp);
+  /* (Jinsheng 11/27/00) set connection twice which causes:
+     FATAL: ../../../proxy/iocore/UDPPacket.h:136:
+     failed assert `!m_conn` */
+
+  /* packet->setConnection ((UDPConnection *)udp); */
+  return reinterpret_cast<TSAction>(conn->send((Continuation *)contp, packet));
+}
+
+
+TSAction
+INKUDPRecvFrom(TSCont contp, INKUDPConn udp)
+{
+  sdk_assert(sdk_sanity_check_continuation(contp) == TS_SUCCESS);
+
+  FORCE_PLUGIN_MUTEX(contp);
+  UDPConnection *conn = (UDPConnection *)udp;
+  return reinterpret_cast<TSAction>(conn->recv((Continuation *)contp));
+}
+
+int
+INKUDPConnFdGet(INKUDPConn udp)
+{
+  UDPConnection *conn = (UDPConnection *)udp;
+  return conn->getFd();
+}
+
+/* UDP Packet */
+INKUDPPacket
+INKUDPPacketCreate()
+{
+  UDPPacket *packet = new_UDPPacket();
+  return ((INKUDPPacket)packet);
+}
+
+TSIOBufferBlock
+INKUDPPacketBufferBlockGet(INKUDPPacket packet)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)packet) == TS_SUCCESS);
+
+  UDPPacket *p = (UDPPacket *)packet;
+  return ((TSIOBufferBlock)p->getIOBlockChain());
+}
+
+unsigned int
+INKUDPPacketFromAddressGet(INKUDPPacket packet)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)packet) == TS_SUCCESS);
+
+  UDPPacket *p = (UDPPacket *)packet;
+  return ats_ip4_addr_cast(&p->from);
+}
+
+int
+INKUDPPacketFromPortGet(INKUDPPacket packet)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)packet) == TS_SUCCESS);
+
+  UDPPacket *p = (UDPPacket *)packet;
+  return ats_ip_port_host_order(&p->from);
+}
+
+INKUDPConn
+INKUDPPacketConnGet(INKUDPPacket packet)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)packet) == TS_SUCCESS);
+
+  UDPPacket *p = (UDPPacket *)packet;
+  return ((INKUDPConn)p->getConnection());
+}
+
+void
+INKUDPPacketDestroy(INKUDPPacket packet)
+{
+  sdk_assert(sdk_sanity_check_null_ptr((void*)packet) == TS_SUCCESS);
+
+  UDPPacket *p = (UDPPacket *)packet;
+  p->free();
+}
+
+/* Packet Queue */
+
+INKUDPPacket
+INKUDPPacketGet(INKUDPacketQueue queuep)
+{
+  if (queuep != NULL) {
+    UDPPacket *packet;
+    Queue<UDPPacket> *qp = (Queue<UDPPacket> *)queuep;
+
+    packet = qp->pop();
+    return (packet);
+  } 
+
+  return NULL;
+}
+
+
+/* Buffers */
+
+TSIOBuffer
+TSIOBufferCreate()
+{
+  MIOBuffer *b = new_empty_MIOBuffer();
+
+  // TODO: Should remove this when memory allocations can't fail.
+  sdk_assert(sdk_sanity_check_iocore_structure(b) == TS_SUCCESS);
+  return reinterpret_cast<TSIOBuffer>(b);
+}
+
+TSIOBuffer
+TSIOBufferSizedCreate(TSIOBufferSizeIndex index)
+{
+  sdk_assert((index >= TS_IOBUFFER_SIZE_INDEX_128) && (index <= TS_IOBUFFER_SIZE_INDEX_32K));
+
+  MIOBuffer *b = new_MIOBuffer(index);
+
+  // TODO: Should remove this when memory allocations can't fail.
+  sdk_assert(sdk_sanity_check_iocore_structure(b) == TS_SUCCESS);
+  return reinterpret_cast<TSIOBuffer>(b);
+}
+
+void
+TSIOBufferDestroy(TSIOBuffer bufp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+  free_MIOBuffer((MIOBuffer *)bufp);
+}
+
+TSIOBufferBlock
+TSIOBufferStart(TSIOBuffer bufp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  IOBufferBlock *blk = b->get_current_block();
+
+  if (!blk || (blk->write_avail() == 0))
+    b->add_block();
+  blk = b->get_current_block();
+
+  // TODO: Remove when memory allocations can't fail.
+  sdk_assert(sdk_sanity_check_null_ptr((void*)blk) == TS_SUCCESS);
+
+  return (TSIOBufferBlock)blk;
+}
+
+int64_t
+TSIOBufferCopy(TSIOBuffer bufp, TSIOBufferReader readerp, int64_t length, int64_t offset)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+  sdk_assert((length >= 0) && (offset >= 0));
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  IOBufferReader *r = (IOBufferReader *)readerp;
+
+  return b->write(r, length, offset);
+}
+
+int64_t
+TSIOBufferWrite(TSIOBuffer bufp, const void *buf, int64_t length)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_null_ptr((void*)buf) == TS_SUCCESS);
+  sdk_assert(length >= 0);
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  return b->write(buf, length);
+}
+
+// not in SDK3.0
+void
+TSIOBufferReaderCopy(TSIOBufferReader readerp, const void *buf, int64_t length)
+{
+  IOBufferReader *r = (IOBufferReader *)readerp;
+  r->memcpy(buf, length);
+}
+
+void
+TSIOBufferProduce(TSIOBuffer bufp, int64_t nbytes)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+  sdk_assert(nbytes >= 0);
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  b->fill(nbytes);
+}
+
+// dev API, not exposed
+void
+TSIOBufferBlockDestroy(TSIOBufferBlock blockp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+  blk->free();
+}
+
+TSIOBufferBlock
+TSIOBufferBlockNext(TSIOBufferBlock blockp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+  return (TSIOBufferBlock)((IOBufferBlock *)blk->next);
+}
+
+// dev API, not exposed
+int64_t
+TSIOBufferBlockDataSizeGet(TSIOBufferBlock blockp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+  return (blk->read_avail());
+}
+
+const char *
+TSIOBufferBlockReadStart(TSIOBufferBlock blockp, TSIOBufferReader readerp, int64_t *avail)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+  IOBufferReader *reader = (IOBufferReader *)readerp;
+  char *p;
+
+  p = blk->start();
+  if (avail)
+    *avail = blk->read_avail();
+
+  if (blk == reader->block) {
+    p += reader->start_offset;
+    if (avail) {
+      *avail -= reader->start_offset;
+      if (*avail < 0) {
+        *avail = 0;
+      }
+    }
+  }
+
+  return (const char *)p;
+}
+
+int64_t
+TSIOBufferBlockReadAvail(TSIOBufferBlock blockp, TSIOBufferReader readerp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+  IOBufferReader *reader = (IOBufferReader *)readerp;
+  int64_t avail;
+
+  avail = blk->read_avail();
+
+  if (blk == reader->block) {
+    avail -= reader->start_offset;
+    if (avail < 0) {
+      avail = 0;
+    }
+  }
+
+  return avail;
+}
+
+char *
+TSIOBufferBlockWriteStart(TSIOBufferBlock blockp, int64_t *avail)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+
+  if (avail)
+    *avail = blk->write_avail();
+  return blk->end();
+}
+
+int64_t
+TSIOBufferBlockWriteAvail(TSIOBufferBlock blockp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(blockp) == TS_SUCCESS);
+
+  IOBufferBlock *blk = (IOBufferBlock *)blockp;
+  return blk->write_avail();
+}
+
+int64_t
+TSIOBufferWaterMarkGet(TSIOBuffer bufp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  return b->water_mark;
+}
+
+void
+TSIOBufferWaterMarkSet(TSIOBuffer bufp, int64_t water_mark)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+  sdk_assert(water_mark >= 0);
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  b->water_mark = water_mark;
+}
+
+TSIOBufferReader
+TSIOBufferReaderAlloc(TSIOBuffer bufp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(bufp) == TS_SUCCESS);
+
+  MIOBuffer *b = (MIOBuffer *)bufp;
+  TSIOBufferReader readerp = (TSIOBufferReader)b->alloc_reader();
+
+  // TODO: Should remove this when memory allocation can't fail.
+  sdk_assert(sdk_sanity_check_null_ptr((void*)readerp) == TS_SUCCESS);
+  return readerp;
+}
+
+TSIOBufferReader
+TSIOBufferReaderClone(TSIOBufferReader readerp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+
+  IOBufferReader *r = (IOBufferReader *)readerp;
+  return (TSIOBufferReader)r->clone();
+}
+
+void
+TSIOBufferReaderFree(TSIOBufferReader readerp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+
+  IOBufferReader *r = (IOBufferReader *)readerp;
+  r->mbuf->dealloc_reader(r);
+}
+
+TSIOBufferBlock
+TSIOBufferReaderStart(TSIOBufferReader readerp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+
+  IOBufferReader *r = (IOBufferReader *)readerp;
+
+  if (r->block != NULL)
+    r->skip_empty_blocks();
+  return reinterpret_cast<TSIOBufferBlock>(r->get_current_block());
+}
+
+void
+TSIOBufferReaderConsume(TSIOBufferReader readerp, int64_t nbytes)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+  sdk_assert(nbytes >= 0);
+
+  IOBufferReader *r = (IOBufferReader *)readerp;
+  r->consume(nbytes);
+}
+
+int64_t
+TSIOBufferReaderAvail(TSIOBufferReader readerp)
+{
+  sdk_assert(sdk_sanity_check_iocore_structure(readerp) == TS_SUCCESS);
+
+  IOBufferReader *r = (IOBufferReader *)readerp;
+  return r->read_avail();
+}
diff --git a/proxy/InkPool_r.h b/proxy/InkPool_r.h
new file mode 100644
index 00000000..6660d483
--- /dev/null
+++ b/proxy/InkPool_r.h
@@ -0,0 +1,71 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_POOL_R_H_INCLUDED__
+#define __INK_POOL_R_H_INCLUDED__
+
+#include "InkPool.h"
+#include "P_EventSystem.h"
+
+template<class C> class InkStaticPool_r:
+public InkStaticPool<C> {
+public:
+  InkStaticPool_r(int size):InkStaticPool<C> (size)
+  {
+    mutex = new_ProxyMutex();
+  }
+
+  virtual ~ InkStaticPool_r() {
+    MUTEX_LOCK(lock, mutex, this_ethread());
+    cleanUp();
+  }
+
+  C *get()
+  {
+    MUTEX_LOCK(lock, mutex, this_ethread());
+    return (InkStaticPool<C>::get());
+  }
+
+  bool put(C * newObj)
+  {
+    MUTEX_LOCK(lock, mutex, this_ethread());
+    return (InkStaticPool<C>::put(newObj));
+  }
+
+  void put_or_delete(C * newObj)
+  {
+    if (!this->put(newObj))
+      delete newObj;
+  }
+
+  ProxyMutex *getMutex()
+  {
+    return (mutex);
+  }
+
+protected:
+  Ptr<ProxyMutex> mutex;
+};
+
+
+#endif // #ifndef __INK_POOL_R_H_INCLUDED__
diff --git a/proxy/Main.cc b/proxy/Main.cc
new file mode 100644
index 00000000..55f6339d
--- /dev/null
+++ b/proxy/Main.cc
@@ -0,0 +1,1738 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Main.cc
+
+  This is the primary source file for the proxy cache system.
+
+
+ ****************************************************************************/
+
+#include "ink_config.h"
+
+#include "libts.h"
+#include "ink_sys_control.h"
+#include <syslog.h>
+
+#if !defined(linux)
+#include <sys/lock.h>
+#endif
+
+#if defined(linux)
+extern "C" int plock(int);
+#else
+#include <sys/filio.h>
+#endif
+
+#if HAVE_MCHECK_H
+#include <mcheck.h>
+#endif
+
+#include "Main.h"
+#include "signals.h"
+#include "Error.h"
+#include "StatSystem.h"
+#include "P_EventSystem.h"
+#include "P_Net.h"
+#include "P_UDPNet.h"
+#include "P_DNS.h"
+#include "P_SplitDNS.h"
+#include "P_Cluster.h"
+#include "P_HostDB.h"
+#include "P_Cache.h"
+#include "I_Layout.h"
+#include "I_Machine.h"
+#include "RecordsConfig.h"
+#include "I_RecProcess.h"
+#include "Transform.h"
+#include "ProcessManager.h"
+#include "ProxyConfig.h"
+#include "HttpProxyServerMain.h"
+#include "HttpBodyFactory.h"
+#include "logging/Log.h"
+#include "ICPProcessor.h"
+//#include "ClusterTest.h"
+#include "CacheControl.h"
+#include "IPAllow.h"
+#include "ParentSelection.h"
+#include "MgmtUtils.h"
+#include "StatPages.h"
+#include "HTTP.h"
+#include "Plugin.h"
+#include "DiagsConfig.h"
+#include "CoreUtils.h"
+#include "Update.h"
+#include "congest/Congestion.h"
+#include "RemapProcessor.h"
+#include "I_Tasks.h"
+#include "InkAPIInternal.h"
+
+#include <ts/ink_cap.h>
+
+#if TS_HAS_PROFILER
+#include <google/profiler.h>
+#endif
+
+//
+// Global Data
+//
+#define DEFAULT_HTTP_ACCEPT_PORT_NUMBER   0
+#define DEFAULT_COMMAND_FLAG              0
+
+#define DEFAULT_VERBOSE_FLAG              0
+#define DEFAULT_VERSION_FLAG              0
+#define DEFAULT_STACK_TRACE_FLAG          0
+
+#if DEFAULT_COMMAND_FLAG
+# define DEFAULT_COMMAND_FLAG_TYPE        "f"
+#else
+# define DEFAULT_COMMAND_FLAG_TYPE        "F"
+#endif
+
+#define DEFAULT_REMOTE_MANAGEMENT_FLAG    0
+#define DIAGS_LOG_FILENAME                "diags.log"
+
+static const long MAX_LOGIN =  sysconf(_SC_LOGIN_NAME_MAX) <= 0 ? _POSIX_LOGIN_NAME_MAX :  sysconf(_SC_LOGIN_NAME_MAX);
+
+static void * mgmt_restart_shutdown_callback(void *, char *, int data_len);
+static void*  mgmt_storage_device_cmd_callback(void* x, char* data, int len);
+static void init_ssl_ctx_callback(void *ctx, bool server);
+
+static int version_flag = DEFAULT_VERSION_FLAG;
+
+static int num_of_net_threads = ink_number_of_processors();
+static int num_of_udp_threads = 0;
+static int num_accept_threads  = 0;
+static int num_task_threads = 0;
+
+extern int num_of_cluster_threads;
+
+static char * http_accept_port_descriptor;
+int http_accept_file_descriptor = NO_FD;
+static char core_file[255] = "";
+static bool enable_core_file_p = false; // Enable core file dump?
+int command_flag = DEFAULT_COMMAND_FLAG;
+#if TS_HAS_TESTS
+static char regression_test[1024] = "";
+#endif
+int auto_clear_hostdb_flag = 0;
+extern int fds_limit;
+extern int cluster_port_number;
+extern int cache_clustering_enabled;
+char cluster_host[MAXDNAME + 1] = DEFAULT_CLUSTER_HOST;
+
+//         = DEFAULT_CLUSTER_PORT_NUMBER;
+static char command_string[512] = "";
+int remote_management_flag = DEFAULT_REMOTE_MANAGEMENT_FLAG;
+
+static char error_tags[1024] = "";
+static char action_tags[1024] = "";
+static int show_statistics = 0;
+static inkcoreapi DiagsConfig *diagsConfig = NULL;
+HttpBodyFactory *body_factory = NULL;
+
+static int accept_mss = 0;
+static int cmd_line_dprintf_level = 0;  // default debug output level from ink_dprintf function
+static int poll_timeout = -1; // No value set.
+
+// 1: delay listen, wait for cache.
+// 0: Do not delay, start listen ASAP.
+// -1: cache is already initialized, don't delay.
+static volatile int delay_listen_for_cache_p = 0;
+
+AppVersionInfo appVersionInfo;  // Build info for this application
+
+const Version version = {
+  {CACHE_DB_MAJOR_VERSION, CACHE_DB_MINOR_VERSION},     // cacheDB
+  {CACHE_DIR_MAJOR_VERSION, CACHE_DIR_MINOR_VERSION},   // cacheDir
+  {CLUSTER_MAJOR_VERSION, CLUSTER_MINOR_VERSION},       // current clustering
+  {MIN_CLUSTER_MAJOR_VERSION, MIN_CLUSTER_MINOR_VERSION},       // min clustering
+};
+
+static const ArgumentDescription argument_descriptions[] = {
+  {"net_threads", 'n', "Number of Net Threads", "I", &num_of_net_threads, "PROXY_NET_THREADS", NULL},
+  {"cluster_threads", 'Z', "Number of Cluster Threads", "I", &num_of_cluster_threads, "PROXY_CLUSTER_THREADS", NULL},
+  {"udp_threads", 'U', "Number of UDP Threads", "I", &num_of_udp_threads, "PROXY_UDP_THREADS", NULL},
+  {"accept_thread", 'a', "Use an Accept Thread", "T", &num_accept_threads, "PROXY_ACCEPT_THREAD", NULL},
+  {"accept_till_done", 'b', "Accept Till Done", "T", &accept_till_done, "PROXY_ACCEPT_TILL_DONE", NULL},
+  {"httpport", 'p', "Port descriptor for HTTP Accept", "S*", &http_accept_port_descriptor,
+   "PROXY_HTTP_ACCEPT_PORT", NULL},
+  {"cluster_port", 'P', "Cluster Port Number", "I", &cluster_port_number, "PROXY_CLUSTER_PORT", NULL},
+  {"dprintf_level", 'o', "Debug output level", "I", &cmd_line_dprintf_level, "PROXY_DPRINTF_LEVEL", NULL},
+  {"version", 'V', "Print Version String", "T", &version_flag, NULL, NULL},
+
+#if TS_HAS_TESTS
+  {"regression", 'R',
+#ifdef DEBUG
+   "Regression Level (quick:1..long:3)",
+#else
+   0,
+#endif
+   "I", &regression_level, "PROXY_REGRESSION", NULL},
+  {"regression_test", 'r',
+
+#ifdef DEBUG
+   "Run Specific Regression Test",
+#else
+   0,
+#endif
+   "S512", regression_test, "PROXY_REGRESSION_TEST", NULL},
+#endif //TS_HAS_TESTS
+
+#if TS_USE_DIAGS
+  {"debug_tags", 'T', "Vertical-bar-separated Debug Tags", "S1023", error_tags, "PROXY_DEBUG_TAGS", NULL},
+  {"action_tags", 'B', "Vertical-bar-separated Behavior Tags", "S1023", action_tags, "PROXY_BEHAVIOR_TAGS", NULL},
+#endif
+
+  {"interval", 'i', "Statistics Interval", "I", &show_statistics, "PROXY_STATS_INTERVAL", NULL},
+  {"remote_management", 'M', "Remote Management", "T", &remote_management_flag, "PROXY_REMOTE_MANAGEMENT", NULL},
+  {"command", 'C', "Maintenance Command to Execute", "S511", &command_string, "PROXY_COMMAND_STRING", NULL},
+  {"clear_hostdb", 'k', "Clear HostDB on Startup", "F", &auto_clear_hostdb_flag, "PROXY_CLEAR_HOSTDB", NULL},
+  {"clear_cache", 'K', "Clear Cache on Startup", "F", &cacheProcessor.auto_clear_flag, "PROXY_CLEAR_CACHE", NULL},
+#if defined(linux)
+  {"read_core", 'c', "Read Core file", "S255", &core_file, NULL, NULL},
+#endif
+
+  {"accept_mss", ' ', "MSS for client connections", "I", &accept_mss, NULL, NULL},
+  {"poll_timeout", 't', "poll timeout in milliseconds", "I", &poll_timeout, NULL, NULL},
+  {"help", 'h', "HELP!", NULL, NULL, NULL, usage},
+};
+
+//
+// Initialize operating system related information/services
+//
+static void
+init_system()
+{
+  RecInt stackDump;
+  bool found = (RecGetRecordInt("proxy.config.stack_dump_enabled", &stackDump) == REC_ERR_OKAY);
+
+  if (found == false) {
+    Warning("Unable to determine stack_dump_enabled , assuming enabled");
+    stackDump = 1;
+  }
+
+  init_signals(stackDump == 1);
+
+  syslog(LOG_NOTICE, "NOTE: --- %s Starting ---", appVersionInfo.AppStr);
+  syslog(LOG_NOTICE, "NOTE: %s Version: %s", appVersionInfo.AppStr, appVersionInfo.FullVersionInfoStr);
+
+  //
+  // Delimit file Descriptors
+  //
+  fds_limit = ink_max_out_rlimit(RLIMIT_NOFILE, true, false);
+}
+
+static void
+check_lockfile()
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+  xptr<char> lockfile;
+  pid_t holding_pid;
+  int err;
+
+  lockfile = Layout::relative_to(rundir, SERVER_LOCK);
+
+  Lockfile server_lockfile(lockfile);
+  err = server_lockfile.Get(&holding_pid);
+
+  if (err != 1) {
+    char *reason = strerror(-err);
+    fprintf(stderr, "WARNING: Can't acquire lockfile '%s'", (const char *)lockfile);
+
+    if ((err == 0) && (holding_pid != -1)) {
+      fprintf(stderr, " (Lock file held by process ID %ld)\n", (long)holding_pid);
+    } else if ((err == 0) && (holding_pid == -1)) {
+      fprintf(stderr, " (Lock file exists, but can't read process ID)\n");
+    } else if (reason) {
+      fprintf(stderr, " (%s)\n", reason);
+    } else {
+      fprintf(stderr, "\n");
+    }
+    _exit(1);
+  }
+}
+
+static void
+check_config_directories(void)
+{
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+
+  if (access(Layout::get()->sysconfdir, R_OK) == -1) {
+    fprintf(stderr,"unable to access() config dir '%s': %d, %s\n",
+            Layout::get()->sysconfdir, errno, strerror(errno));
+    fprintf(stderr, "please set the 'TS_ROOT' environment variable\n");
+    _exit(1);
+  }
+
+  if (access(rundir, R_OK | W_OK) == -1) {
+    fprintf(stderr,"unable to access() local state dir '%s': %d, %s\n",
+            (const char *)rundir, errno, strerror(errno));
+    fprintf(stderr,"please set 'proxy.config.local_state_dir'\n");
+    _exit(1);
+  }
+
+}
+
+//
+// Startup process manager
+//
+static void
+initialize_process_manager()
+{
+  mgmt_use_syslog();
+
+  // Temporary Hack to Enable Communication with LocalManager
+  if (getenv("PROXY_REMOTE_MGMT")) {
+    remote_management_flag = true;
+  }
+
+  RecProcessInit(remote_management_flag ? RECM_CLIENT : RECM_STAND_ALONE, diags);
+
+  if (!remote_management_flag) {
+    LibRecordsConfigInit();
+    RecordsConfigOverrideFromEnvironment();
+  }
+
+  // Start up manager
+  pmgmt = new ProcessManager(remote_management_flag);
+
+  pmgmt->start();
+  RecProcessInitMessage(remote_management_flag ? RECM_CLIENT : RECM_STAND_ALONE);
+  pmgmt->reconfigure();
+  check_config_directories();
+
+  //
+  // Define version info records
+  //
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.short", appVersionInfo.VersionStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.long", appVersionInfo.FullVersionInfoStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_number", appVersionInfo.BldNumStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_time", appVersionInfo.BldTimeStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_date", appVersionInfo.BldDateStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_machine", appVersionInfo.BldMachineStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_person", appVersionInfo.BldPersonStr, RECP_NON_PERSISTENT);
+}
+
+//
+// Shutdown
+//
+void
+shutdown_system()
+{
+}
+
+#define CMD_ERROR    -2         // serious error, exit maintaince mode
+#define CMD_FAILED   -1         // error, but recoverable
+#define CMD_OK        0         // ok, or minor (user) error
+#define CMD_HELP      1         // ok, print help
+#define CMD_IN_PROGRESS 2       // task not completed. don't exit
+
+static int
+cmd_list(char * /* cmd ATS_UNUSED */)
+{
+  printf("LIST\n\n");
+
+  // show hostdb size
+
+  int h_size = 120000;
+  REC_ReadConfigInteger(h_size, "proxy.config.hostdb.size");
+  printf("Host Database size:\t%d\n", h_size);
+
+  // show cache config information....
+
+  Note("Cache Storage:");
+  Store tStore;
+  if (tStore.read_config() < 0) {
+    Note("config read failure");
+    return CMD_FAILED;
+  } else {
+    tStore.write_config_data(fileno(stdout));
+    return CMD_OK;
+  }
+}
+
+static char *
+skip(char *cmd, int null_ok = 0)
+{
+  cmd += strspn(cmd, " \t");
+  cmd = strpbrk(cmd, " \t");
+  if (!cmd) {
+    if (!null_ok)
+      printf("Error: argument missing\n");
+    return cmd;
+  }
+  cmd += strspn(cmd, " \t");
+  return cmd;
+}
+
+// Handler for things that need to wait until the cache is initialized.
+static void
+CB_After_Cache_Init()
+{
+  APIHook* hook;
+  int start;
+
+  start = ink_atomic_swap(&delay_listen_for_cache_p, -1);
+  if (1 == start) {
+    Debug("http_listen", "Delayed listen enable, cache initialization finished");
+    start_HttpProxyServer();
+  }
+
+  time_t cache_ready_at = time(NULL);
+  RecSetRecordInt("proxy.node.restarts.proxy.cache_ready_time", cache_ready_at);
+
+  // Alert the plugins the cache is initialized.
+  hook = lifecycle_hooks->get(TS_LIFECYCLE_CACHE_READY_HOOK);
+  while (hook) {
+    hook->invoke(TS_EVENT_LIFECYCLE_CACHE_READY, NULL);
+    hook = hook->next();
+  }
+}
+
+struct CmdCacheCont: public Continuation
+{
+
+  int cache_fix;
+
+  int ClearEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    if (cacheProcessor.IsCacheEnabled() == CACHE_INITIALIZED) {
+      Note("CLEAR, succeeded");
+      _exit(0);
+    } else if (cacheProcessor.IsCacheEnabled() == CACHE_INIT_FAILED) {
+      Note("unable to open Cache, CLEAR failed");
+      _exit(1);
+    }
+    return EVENT_CONT;
+  }
+
+  int CheckEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    int res = 0;
+    Note("Cache Directory");
+    if (cacheProcessor.IsCacheEnabled() == CACHE_INITIALIZED) {
+
+      res = cacheProcessor.dir_check(cache_fix) < 0 || res;
+
+      Note("Cache");
+      res = cacheProcessor.db_check(cache_fix) < 0 || res;
+
+      cacheProcessor.stop();
+
+      const char *n = cache_fix ? "REPAIR" : "CHECK";
+
+      if (res) {
+        printf("\n%s failed", n);
+        _exit(1);
+      } else {
+        printf("\n%s succeeded\n", n);
+        _exit(0);
+      }
+    } else if (cacheProcessor.IsCacheEnabled() == CACHE_INIT_FAILED) {
+      Note("unable to open Cache, Check failed");
+      _exit(1);
+    }
+    return EVENT_CONT;
+  }
+
+  CmdCacheCont(bool check, bool fix = false):Continuation(new_ProxyMutex()) {
+    cache_fix = fix;
+    if (check)
+      SET_HANDLER(&CmdCacheCont::CheckEvent);
+    else
+      SET_HANDLER(&CmdCacheCont::ClearEvent);
+  }
+
+};
+
+static int
+cmd_check_internal(char * /* cmd ATS_UNUSED */, bool fix = false)
+{
+  const char *n = fix ? "REPAIR" : "CHECK";
+
+  printf("%s\n\n", n);
+  int res = 0;
+
+  hostdb_current_interval = (ink_get_based_hrtime() / HRTIME_MINUTE);
+
+//#ifndef INK_NO_ACC
+//  acc.clear_cache();
+//#endif
+
+  const char *err = NULL;
+  theStore.delete_all();
+  if ((err = theStore.read_config())) {
+    printf("%s, %s failed\n", err, n);
+    return CMD_FAILED;
+  }
+  printf("Host Database\n");
+  HostDBCache hd;
+  if (hd.start(fix) < 0) {
+    printf("\tunable to open Host Database, %s failed\n", n);
+    return CMD_OK;
+  }
+  res = hd.check("hostdb.config", fix) < 0 || res;
+  hd.reset();
+
+  if (cacheProcessor.start() < 0) {
+    printf("\nbad cache configuration, %s failed\n", n);
+    return CMD_FAILED;
+  }
+  eventProcessor.schedule_every(new CmdCacheCont(true, fix), HRTIME_SECONDS(1));
+
+  return CMD_IN_PROGRESS;
+}
+
+static int
+cmd_check(char *cmd)
+{
+  return cmd_check_internal(cmd, false);
+}
+
+#ifdef UNUSED_FUNCTION
+static int
+cmd_repair(char *cmd)
+{
+  return cmd_check_internal(cmd, true);
+}
+#endif
+
+static int
+cmd_clear(char *cmd)
+{
+  Note("CLEAR");
+
+  bool c_all = !strcmp(cmd, "clear");
+  bool c_hdb = !strcmp(cmd, "clear_hostdb");
+  //bool c_adb = !strcmp(cmd, "clear_authdb");
+  bool c_cache = !strcmp(cmd, "clear_cache");
+
+  if (c_all || c_hdb) {
+    xptr<char> rundir(RecConfigReadRuntimeDir());
+    xptr<char> config(Layout::relative_to(rundir, "hostdb.config"));
+
+    Note("Clearing HostDB Configuration");
+    if (unlink(config) < 0)
+      Note("unable to unlink %s", (const char *)config);
+  }
+
+  if (c_all || c_cache) {
+    const char *err = NULL;
+    theStore.delete_all();
+    if ((err = theStore.read_config())) {
+      printf("%s, CLEAR failed\n", err);
+      return CMD_FAILED;
+    }
+  }
+
+  if (c_hdb || c_all) {
+    Note("Clearing Host Database");
+    if (hostDBProcessor.cache()->start(PROCESSOR_RECONFIGURE) < 0) {
+      Note("unable to open Host Database, CLEAR failed");
+      return CMD_FAILED;
+    }
+    hostDBProcessor.cache()->reset();
+    if (c_hdb)
+      return CMD_OK;
+  }
+
+//#ifndef INK_NO_ACC
+//  if (c_adb || c_all) {
+ //   if (!acc.clear_cache()) {
+  //    return CMD_FAILED;
+  //  }
+   // if (c_adb)
+    //  return CMD_OK;
+//  }
+//#endif
+
+  if (c_all || c_cache) {
+    Note("Clearing Cache");
+
+    if (cacheProcessor.start_internal(PROCESSOR_RECONFIGURE) < 0) {
+      Note("unable to open Cache, CLEAR failed");
+      return CMD_FAILED;
+    }
+    eventProcessor.schedule_every(new CmdCacheCont(false), HRTIME_SECONDS(1));
+    return CMD_IN_PROGRESS;
+  }
+
+  return CMD_OK;
+}
+
+static int cmd_help(char *cmd);
+
+static const struct CMD
+{
+  const char *n;                      // name
+  const char *d;                      // description (part of a line)
+  const char *h;                      // help string (multi-line)
+  int (*f) (char *);
+}
+commands[] = {
+  {
+  "list",
+      "List cache configuration",
+      "LIST\n"
+      "\n"
+      "FORMAT: list\n"
+      "\n"
+      "List the sizes of the Host Database and Cache Index,\n" "and the storage available to the cache.\n", cmd_list}, {
+  "check",
+      "Check the cache (do not make any changes)",
+      "CHECK\n"
+      "\n"
+      "FORMAT: check\n"
+      "\n"
+      "Check the cache for inconsistencies or corruption.\n"
+      "CHECK does not make any changes to the data stored in\n"
+      "the cache. CHECK requires a scan of the contents of the\n"
+      "cache and may take a long time for large caches.\n", cmd_check}, {
+  "clear",
+      "Clear the entire cache",
+      "CLEAR\n"
+      "\n"
+      "FORMAT: clear\n"
+      "\n"
+      "Clear the entire cache.  All data in the cache is\n"
+      "lost and the cache is reconfigured based on the current\n"
+      "description of database sizes and available storage.\n", cmd_clear}, {
+  "clear_cache",
+      "Clear the document cache",
+      "CLEAR_CACHE\n"
+      "\n"
+      "FORMAT: clear_cache\n"
+      "\n"
+      "Clear the document cache.  All documents in the cache are\n"
+      "lost and the cache is reconfigured based on the current\n"
+      "description of database sizes and available storage.\n", cmd_clear}, {
+  "clear_hostdb",
+      "Clear the hostdb cache",
+      "CLEAR_HOSTDB\n"
+      "\n"
+      "FORMAT: clear_hostdb\n"
+      "\n" "Clear the entire hostdb cache.  All host name resolution\n" "information is lost.\n", cmd_clear}, {
+"help",
+      "Obtain a short description of a command (e.g. 'help clear')",
+      "HELP\n"
+      "\n"
+      "FORMAT: help [command_name]\n"
+      "\n"
+      "EXAMPLES: help help\n"
+      "          help commit\n" "\n" "Provide a short description of a command (like this).\n", cmd_help},};
+
+static int
+cmd_index(char *p)
+{
+  p += strspn(p, " \t");
+  for (unsigned c = 0; c < countof(commands); c++) {
+    const char *l = commands[c].n;
+    while (l) {
+      const char *s = strchr(l, '/');
+      char *e = strpbrk(p, " \t\n");
+      int len = s ? s - l : strlen(l);
+      int lenp = e ? e - p : strlen(p);
+      if ((len == lenp) && !strncasecmp(p, l, len))
+        return c;
+      l = s ? s + 1 : 0;
+    }
+  }
+  return -1;
+}
+
+static int
+cmd_help(char *cmd)
+{
+  (void) cmd;
+  printf("HELP\n\n");
+  cmd = skip(cmd, true);
+  if (!cmd) {
+    for (unsigned i = 0; i < countof(commands); i++) {
+      printf("%15s  %s\n", commands[i].n, commands[i].d);
+    }
+  } else {
+    int i;
+    if ((i = cmd_index(cmd)) < 0) {
+      printf("\nno help found for: %s\n", cmd);
+      return CMD_FAILED;
+    }
+    printf("Help for: %s\n\n", commands[i].n);
+    printf("%s", commands[i].h);
+  }
+  return CMD_OK;
+}
+
+static void
+check_fd_limit()
+{
+  int fds_throttle = -1;
+  REC_ReadConfigInteger(fds_throttle, "proxy.config.net.connections_throttle");
+  if (fds_throttle > fds_limit + THROTTLE_FD_HEADROOM) {
+    int new_fds_throttle = fds_limit - THROTTLE_FD_HEADROOM;
+    if (new_fds_throttle < 1)
+      MachineFatal("too few file descritors (%d) available", fds_limit);
+    char msg[256];
+    snprintf(msg, sizeof(msg), "connection throttle too high, "
+             "%d (throttle) + %d (internal use) > %d (file descriptor limit), "
+             "using throttle of %d", fds_throttle, THROTTLE_FD_HEADROOM, fds_limit, new_fds_throttle);
+    SignalWarning(MGMT_SIGNAL_SYSTEM_ERROR, msg);
+  }
+}
+
+//
+// Command mode
+//
+static int
+cmd_mode()
+{
+  if (*command_string) {
+    int c = cmd_index(command_string);
+    if (c >= 0) {
+      return commands[c].f(command_string);
+    } else {
+      Warning("unrecognized command: '%s'", command_string);
+      return CMD_FAILED;        // in error
+    }
+  } else {
+    printf("\n");
+    printf("WARNING\n");
+    printf("\n");
+    printf("The interactive command mode no longer exists.\n");
+    printf("Use '-C <command>' to execute a command from the shell prompt.\n");
+    printf("For example: 'traffic_server -C clear' will clear the cache.\n");
+    return 1;
+  }
+}
+
+#ifdef UNUSED_FUNCTION
+static void
+check_for_root_uid()
+{
+  if ((getuid() == 0) || (geteuid() == 0)) {
+    ProcessFatal("Traffic Server must not be run as root");
+  }
+}
+#endif
+
+static int
+set_core_size(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+              RecData data, void * /* opaque_token ATS_UNUSED */)
+{
+  RecInt size = data.rec_int;
+  struct rlimit lim;
+  bool failed = false;
+
+  if (getrlimit(RLIMIT_CORE, &lim) < 0) {
+    failed = true;
+  } else {
+    if (size < 0) {
+      lim.rlim_cur = lim.rlim_max;
+    } else {
+      lim.rlim_cur = (rlim_t) size;
+    }
+    if (setrlimit(RLIMIT_CORE, &lim) < 0) {
+      failed = true;
+    }
+    enable_core_file_p = size != 0;
+    EnableCoreFile(enable_core_file_p);
+  }
+
+  if (failed == true) {
+    Warning("Failed to set Core Limit : %s", strerror(errno));
+  }
+  return 0;
+}
+
+static void
+init_core_size()
+{
+  bool found;
+  RecInt coreSize;
+  found = (RecGetRecordInt("proxy.config.core_limit", &coreSize) == REC_ERR_OKAY);
+
+  if (found == false) {
+    Warning("Unable to determine core limit");
+  } else {
+    RecData rec_temp;
+    rec_temp.rec_int = coreSize;
+    set_core_size(NULL, RECD_INT, rec_temp, NULL);
+    found = (REC_RegisterConfigUpdateFunc("proxy.config.core_limit", set_core_size, NULL) == REC_ERR_OKAY);
+
+    ink_assert(found);
+  }
+}
+
+static void
+adjust_sys_settings(void)
+{
+#if defined(linux)
+  struct rlimit lim;
+  int mmap_max = -1;
+  int fds_throttle = -1;
+  float file_max_pct = 0.9;
+  FILE *fd;
+
+  // TODO: I think we might be able to get rid of this?
+  REC_ReadConfigInteger(mmap_max, "proxy.config.system.mmap_max");
+  if (mmap_max >= 0)
+    ats_mallopt(ATS_MMAP_MAX, mmap_max);
+
+  if ((fd = fopen("/proc/sys/fs/file-max","r"))) {
+    ATS_UNUSED_RETURN(fscanf(fd, "%lu", &lim.rlim_max));
+    fclose(fd);
+    REC_ReadConfigFloat(file_max_pct, "proxy.config.system.file_max_pct");
+    lim.rlim_cur = lim.rlim_max = static_cast<rlim_t>(lim.rlim_max * file_max_pct);
+    if (!setrlimit(RLIMIT_NOFILE, &lim) && !getrlimit(RLIMIT_NOFILE, &lim)) {
+      fds_limit = (int) lim.rlim_cur;
+      syslog(LOG_NOTICE, "NOTE: RLIMIT_NOFILE(%d):cur(%d),max(%d)",RLIMIT_NOFILE, (int)lim.rlim_cur, (int)lim.rlim_max);
+    } else {
+      syslog(LOG_NOTICE, "NOTE: Unable to set RLIMIT_NOFILE(%d):cur(%d),max(%d)", RLIMIT_NOFILE, (int)lim.rlim_cur, (int)lim.rlim_max);
+    }
+  } else {
+    syslog(LOG_NOTICE, "NOTE: Unable to open /proc/sys/fs/file-max");
+  }
+
+  REC_ReadConfigInteger(fds_throttle, "proxy.config.net.connections_throttle");
+
+  if (!getrlimit(RLIMIT_NOFILE, &lim)) {
+    if (fds_throttle > (int) (lim.rlim_cur + THROTTLE_FD_HEADROOM)) {
+      lim.rlim_cur = (lim.rlim_max = (rlim_t) fds_throttle);
+      if (!setrlimit(RLIMIT_NOFILE, &lim) && !getrlimit(RLIMIT_NOFILE, &lim)) {
+        fds_limit = (int) lim.rlim_cur;
+        syslog(LOG_NOTICE, "NOTE: RLIMIT_NOFILE(%d):cur(%d),max(%d)",RLIMIT_NOFILE, (int)lim.rlim_cur, (int)lim.rlim_max);
+      }
+    }
+  }
+
+  ink_max_out_rlimit(RLIMIT_STACK,true,true);
+  ink_max_out_rlimit(RLIMIT_DATA,true,true);
+  ink_max_out_rlimit(RLIMIT_FSIZE, true, false);
+#ifdef RLIMIT_RSS
+  ink_max_out_rlimit(RLIMIT_RSS,true,true);
+#endif
+
+#endif  // linux check
+}
+
+struct ShowStats: public Continuation
+{
+#ifdef ENABLE_TIME_TRACE
+  FILE *fp;
+#endif
+  int cycle;
+  int64_t last_cc;
+  int64_t last_rb;
+  int64_t last_w;
+  int64_t last_r;
+  int64_t last_wb;
+  int64_t last_nrb;
+  int64_t last_nw;
+  int64_t last_nr;
+  int64_t last_nwb;
+  int64_t last_p;
+  int64_t last_o;
+  int mainEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    if (!(cycle++ % 24))
+      printf("r:rr w:ww r:rbs w:wbs open polls\n");
+    ink_statval_t sval, cval;
+
+    NET_READ_DYN_SUM(net_calls_to_readfromnet_stat, sval);
+    int64_t d_rb = sval - last_rb;
+    last_rb += d_rb;
+    NET_READ_DYN_SUM(net_calls_to_readfromnet_afterpoll_stat, sval);
+    int64_t d_r = sval - last_r;
+    last_r += d_r;
+
+    NET_READ_DYN_SUM(net_calls_to_writetonet_stat, sval);
+    int64_t d_wb = sval - last_wb;
+    last_wb += d_wb;
+    NET_READ_DYN_SUM(net_calls_to_writetonet_afterpoll_stat, sval);
+    int64_t d_w = sval - last_w;
+    last_w += d_w;
+
+    NET_READ_DYN_STAT(net_read_bytes_stat, sval, cval);
+    int64_t d_nrb = sval - last_nrb;
+    last_nrb += d_nrb;
+    int64_t d_nr = cval - last_nr;
+    last_nr += d_nr;
+
+    NET_READ_DYN_STAT(net_write_bytes_stat, sval, cval);
+    int64_t d_nwb = sval - last_nwb;
+    last_nwb += d_nwb;
+    int64_t d_nw = cval - last_nw;
+    last_nw += d_nw;
+
+    NET_READ_GLOBAL_DYN_SUM(net_connections_currently_open_stat, sval);
+    int64_t d_o = sval;
+
+    NET_READ_DYN_STAT(net_handler_run_stat, sval, cval);
+    int64_t d_p = cval - last_p;
+    last_p += d_p;
+    printf("%" PRId64 ":%" PRId64 " %" PRId64 ":%" PRId64 " %" PRId64 ":%" PRId64 " %" PRId64 ":%" PRId64 " %" PRId64 " %" PRId64 "\n",
+           d_rb, d_r, d_wb, d_w, d_nrb, d_nr, d_nwb, d_nw, d_o, d_p);
+#ifdef ENABLE_TIME_TRACE
+    int i;
+    fprintf(fp, "immediate_events_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++)
+    {
+      if ((i % 10) == 0)
+        fprintf(fp, "\n");
+      fprintf(fp, "%5d ", immediate_events_time_dist[i]);
+    }
+    fprintf(fp, "\ncnt_immediate_events=%d\n", cnt_immediate_events);
+
+    fprintf(fp, "cdb_callback_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++) {
+      if ((i % 10) == 0)
+        fprintf(fp, "\n");
+      fprintf(fp, "%5d ", cdb_callback_time_dist[i]);
+    }
+    fprintf(fp, "\ncdb_cache_callbacks=%d\n", cdb_cache_callbacks);
+
+    fprintf(fp, "callback_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++) {
+      if ((i % 10) == 0)
+        printf("\n");
+      fprintf(fp, "%5d ", callback_time_dist[i]);
+    }
+    fprintf(fp, "\ncache_callbacks=%d\n", cache_callbacks);
+
+    fprintf(fp, "rmt_callback_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++) {
+      if ((i % 10) == 0)
+        fprintf(fp, "\n");
+      fprintf(fp, "%5d ", rmt_callback_time_dist[i]);
+    }
+    fprintf(fp, "\nrmt_cache_callbacks=%d\n", rmt_cache_callbacks);
+
+    fprintf(fp, "inmsg_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++) {
+      if ((i % 10) == 0)
+        fprintf(fp, "\n");
+      fprintf(fp, "%5d ", inmsg_time_dist[i]);
+    }
+    fprintf(fp, "\ninmsg_events=%d\n", inmsg_events);
+
+    fprintf(fp, "open_delay_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++) {
+      if ((i % 10) == 0)
+        fprintf(fp, "\n");
+      fprintf(fp, "%5d ", open_delay_time_dist[i]);
+    }
+    fprintf(fp, "\nopen_delay_events=%d\n", open_delay_events);
+
+    fprintf(fp, "cluster_send_time_dist\n");
+    for (i = 0; i < TIME_DIST_BUCKETS_SIZE; i++) {
+      if ((i % 10) == 0)
+        fprintf(fp, "\n");
+      fprintf(fp, "%5d ", cluster_send_time_dist[i]);
+    }
+    fprintf(fp, "\ncluster_send_events=%d\n", cluster_send_events);
+    fflush(fp);
+#endif
+    return EVENT_CONT;
+  }
+ShowStats():Continuation(NULL),
+    cycle(0),
+    last_cc(0),
+    last_rb(0),
+    last_w(0), last_r(0), last_wb(0), last_nrb(0), last_nw(0), last_nr(0), last_nwb(0), last_p(0), last_o(0) {
+    SET_HANDLER(&ShowStats::mainEvent);
+#ifdef ENABLE_TIME_TRACE
+    fp = fopen("./time_trace.out", "a");
+#endif
+
+  }
+};
+
+
+// TODO: How come this is never used ??
+static int syslog_facility = LOG_DAEMON;
+
+// static void syslog_log_configure()
+//
+//   Reads the syslog configuration variable
+//     and sets the global integer for the
+//     facility and calls open log with the
+//     new facility
+//
+static void
+syslog_log_configure()
+{
+  char *facility_str = NULL;
+  int facility;
+
+  REC_ReadConfigStringAlloc(facility_str, "proxy.config.syslog_facility");
+
+  if (facility_str == NULL || (facility = facility_string_to_int(facility_str)) < 0) {
+    syslog(LOG_WARNING, "Bad or missing syslog facility.  " "Defaulting to LOG_DAEMON");
+  } else {
+    syslog_facility = facility;
+    closelog();
+    openlog("traffic_server", LOG_PID | LOG_NDELAY | LOG_NOWAIT, facility);
+  }
+  // TODO: Not really, what's up with this?
+  Debug("server", "Setting syslog facility to %d\n", syslog_facility);
+  ats_free(facility_str);
+}
+
+static void
+check_system_constants()
+{
+}
+
+static void
+init_http_header()
+{
+  url_init();
+  mime_init();
+  http_init();
+}
+
+struct AutoStopCont: public Continuation
+{
+  int mainEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    _exit(0);
+    return 0;
+  }
+  AutoStopCont():Continuation(new_ProxyMutex())
+  {
+    SET_HANDLER(&AutoStopCont::mainEvent);
+  }
+};
+
+static void
+run_AutoStop()
+{
+  if (getenv("PROXY_AUTO_EXIT"))
+    eventProcessor.schedule_in(new AutoStopCont(), HRTIME_SECONDS(atoi(getenv("PROXY_AUTO_EXIT"))));
+}
+
+#if TS_HAS_TESTS
+struct RegressionCont: public Continuation
+{
+  int initialized;
+  int waits;
+  int started;
+  int mainEvent(int event, Event * e)
+  {
+    (void) event;
+    (void) e;
+    int res = 0;
+    if (!initialized && (cacheProcessor.IsCacheEnabled() != CACHE_INITIALIZED))
+    {
+      printf("Regression waiting for the cache to be ready... %d\n", ++waits);
+      return EVENT_CONT;
+    }
+    char *rt = (char *) (regression_test[0] == 0 ? "" : regression_test);
+    if (!initialized && RegressionTest::run(rt) == REGRESSION_TEST_INPROGRESS) {
+      initialized = 1;
+      return EVENT_CONT;
+    }
+    if ((res = RegressionTest::check_status()) == REGRESSION_TEST_INPROGRESS)
+      return EVENT_CONT;
+    fprintf(stderr, "REGRESSION_TEST DONE: %s\n", regression_status_string(res));
+    _exit(res == REGRESSION_TEST_PASSED ? 0 : 1);
+    return EVENT_CONT;
+  }
+RegressionCont():Continuation(new_ProxyMutex()), initialized(0), waits(0), started(0) {
+    SET_HANDLER(&RegressionCont::mainEvent);
+  }
+};
+
+static void
+run_RegressionTest()
+{
+  if (regression_level)
+    eventProcessor.schedule_every(new RegressionCont(), HRTIME_SECONDS(1));
+}
+#endif //TS_HAS_TESTS
+
+
+static void
+chdir_root()
+{
+  const char * prefix = Layout::get()->prefix;
+
+  if (chdir(prefix) < 0) {
+    fprintf(stderr,"unable to change to root directory \"%s\" [%d '%s']\n",
+            prefix, errno, strerror(errno));
+    fprintf(stderr," please set correct path in env variable TS_ROOT \n");
+    _exit(1);
+  } else {
+    printf("[TrafficServer] using root directory '%s'\n", prefix);
+  }
+}
+
+
+static int
+getNumSSLThreads(void)
+{
+  int num_of_ssl_threads = 0;
+
+  // Set number of ssl threads equal to num of processors if
+  // SSL is enabled so it will scale properly. If SSL is not
+  // enabled, leave num of ssl threads one, incase a remap rule
+  // requires traffic server to act as an ssl client.
+  if (HttpProxyPort::hasSSL()) {
+    int config_num_ssl_threads = 0;
+
+    REC_ReadConfigInteger(config_num_ssl_threads, "proxy.config.ssl.number.threads");
+
+    if (config_num_ssl_threads != 0) {
+      num_of_ssl_threads = config_num_ssl_threads;
+    } else {
+      float autoconfig_scale = 1.5;
+
+      REC_ReadConfigFloat(autoconfig_scale, "proxy.config.exec_thread.autoconfig.scale");
+      num_of_ssl_threads = (int)((float)ink_number_of_processors() * autoconfig_scale);
+
+      // Last resort
+      if (num_of_ssl_threads <= 0)
+        num_of_ssl_threads = config_num_ssl_threads * 2;
+    }
+  }
+
+  return num_of_ssl_threads;
+}
+
+static int
+adjust_num_of_net_threads(int nthreads)
+{
+  float autoconfig_scale = 1.0;
+  int nth_auto_config = 1;
+  int num_of_threads_tmp = 1;
+
+  REC_ReadConfigInteger(nth_auto_config, "proxy.config.exec_thread.autoconfig");
+
+  Debug("threads", "initial number of net threads is %d", nthreads);
+  Debug("threads", "net threads auto-configuration %s", nth_auto_config ? "enabled" : "disabled");
+
+  if (!nth_auto_config) {
+    REC_ReadConfigInteger(num_of_threads_tmp, "proxy.config.exec_thread.limit");
+
+    if (num_of_threads_tmp <= 0) {
+      num_of_threads_tmp = 1;
+    } else if (num_of_threads_tmp > MAX_EVENT_THREADS) {
+      num_of_threads_tmp = MAX_EVENT_THREADS;
+    }
+
+    nthreads = num_of_threads_tmp;
+  } else {                      /* autoconfig is enabled */
+    num_of_threads_tmp = nthreads;
+    REC_ReadConfigFloat(autoconfig_scale, "proxy.config.exec_thread.autoconfig.scale");
+    num_of_threads_tmp = (int) ((float) num_of_threads_tmp * autoconfig_scale);
+
+    if (num_of_threads_tmp) {
+      nthreads = num_of_threads_tmp;
+    }
+
+    if (unlikely(num_of_threads_tmp > MAX_EVENT_THREADS)) {
+      num_of_threads_tmp = MAX_EVENT_THREADS;
+    }
+  }
+
+  if (unlikely(nthreads <= 0)) {      /* impossible case -just for protection */
+    Warning("number of net threads must be greater than 0, resetting to 1");
+    nthreads = 1;
+  }
+
+  Debug("threads", "adjusted number of net threads is %d", nthreads);
+  return nthreads;
+}
+
+/**
+ * Change the uid and gid to what is in the passwd entry for supplied user name.
+ * @param user User name in the passwd file to change the uid and gid to.
+ */
+static void
+change_uid_gid(const char *user)
+{
+  struct passwd pwbuf;
+  struct passwd *pwbufp = NULL;
+#if defined(freebsd) // TODO: investigate sysconf(_SC_GETPW_R_SIZE_MAX)) failure
+  long buflen = 1024; // or 4096?
+#else
+  long buflen = sysconf(_SC_GETPW_R_SIZE_MAX);
+#endif
+  if (buflen < 0) {
+    ink_fatal_die("sysconf() failed for _SC_GETPW_R_SIZE_MAX");
+  }
+
+  char *buf = (char *)ats_malloc(buflen);
+
+  if (0 != geteuid() && 0 == getuid())
+    ATS_UNUSED_RETURN(seteuid(0)); // revert euid if possible.
+  if (0 != geteuid()) {
+    // Not root so can't change user ID. Logging isn't operational yet so
+    // we have to write directly to stderr. Perhaps this should be fatal?
+    fprintf(stderr,
+          "Can't change user to '%s' because running with effective uid=%d\n",
+          user, geteuid());
+  }
+  else {
+    if (user[0] == '#') {
+      // numeric user notation
+      uid_t uid = (uid_t)atoi(&user[1]);
+      getpwuid_r(uid, &pwbuf, buf, buflen, &pwbufp);
+    }
+    else {
+      // read the entry from the passwd file
+      getpwnam_r(user, &pwbuf, buf, buflen, &pwbufp);
+    }
+    // check to see if we found an entry
+    if (pwbufp == NULL) {
+      ink_fatal_die("Can't find entry in password file for user: %s", user);
+    }
+#if !defined (BIG_SECURITY_HOLE)
+    if (pwbuf.pw_uid == 0) {
+      ink_fatal_die("Trafficserver has not been designed to serve pages while\n"
+        "\trunning as root.  There are known race conditions that\n"
+        "\twill allow any local user to read any file on the system.\n"
+        "\tIf you still desire to serve pages as root then\n"
+        "\tadd -DBIG_SECURITY_HOLE to the CFLAGS env variable\n"
+        "\tand then rebuild the server.\n"
+        "\tIt is strongly suggested that you instead modify the\n"
+        "\tproxy.config.admin.user_id  directive in your\n"
+        "\trecords.config file to list a non-root user.\n");
+    }
+#endif
+    // change the gid to passwd entry if we are not already running as that gid
+    if (getgid() != pwbuf.pw_gid) {
+      if (setgid(pwbuf.pw_gid) != 0) {
+        ink_fatal_die("Can't change group to user: %s, gid: %d",
+                      user, pwbuf.pw_gid);
+      }
+    }
+    // change the uid to passwd entry if we are not already running as that uid
+    if (getuid() != pwbuf.pw_uid) {
+      if (setuid(pwbuf.pw_uid) != 0) {
+        ink_fatal_die("Can't change uid to user: %s, uid: %d",
+                      user, pwbuf.pw_uid);
+      }
+    }
+  }
+  ats_free(buf);
+
+  // Ugly but this gets reset when the process user ID is changed so
+  // it must be udpated here.
+  EnableCoreFile(enable_core_file_p);
+}
+
+//
+// Main
+//
+
+int
+main(int /* argc ATS_UNUSED */, char **argv)
+{
+#if TS_HAS_PROFILER
+  ProfilerStart("/tmp/ts.prof");
+#endif
+  bool admin_user_p = false;
+
+#if defined(DEBUG) && defined(HAVE_MCHECK_PEDANTIC)
+  mcheck_pedantic(NULL);
+#endif
+
+  pcre_malloc = ats_malloc;
+  pcre_free = ats_free;
+
+  // Verify system dependent 'constants'
+  check_system_constants();
+
+  // Define the version info
+  appVersionInfo.setup(PACKAGE_NAME,"traffic_server", PACKAGE_VERSION, __DATE__, __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+
+  // Before accessing file system initialize Layout engine
+  Layout::create();
+  chdir_root(); // change directory to the install root of traffic server.
+
+  process_args(argument_descriptions, countof(argument_descriptions), argv);
+
+  // Check for version number request
+  if (version_flag) {
+    fprintf(stderr, "%s\n", appVersionInfo.FullVersionInfoStr);
+    _exit(0);
+  }
+
+  // Set stdout/stdin to be unbuffered
+  setbuf(stdout, NULL);
+  setbuf(stdin, NULL);
+
+  // Set new debug output level (from command line arg)
+  // Only for debug purposes. We should do it as early as possible.
+  ink_set_dprintf_level(cmd_line_dprintf_level);
+
+  // Bootstrap syslog.  Since we haven't read records.config
+  //   yet we do not know where
+  openlog("traffic_server", LOG_PID | LOG_NDELAY | LOG_NOWAIT, LOG_DAEMON);
+
+  // Setup Diags temporary to allow librecords to be initialized.
+  // We will re-configure Diags again with proper configurations after
+  // librecords initialized. This is needed because:
+  //   - librecords needs diags to initialize
+  //   - diags needs to read some configuration records to initial
+  // We cannot mimic whatever TM did (start Diag, init. librecords, and
+  // re-start Diag completely) because at initialize, TM only has 1 thread.
+  // In TS, some threads have already created, so if we delete Diag and
+  // re-start it again, TS will crash.
+  diagsConfig = new DiagsConfig(DIAGS_LOG_FILENAME, error_tags, action_tags, false);
+  diags = diagsConfig->diags;
+  diags->prefix_str = "Server ";
+  if (is_debug_tag_set("diags"))
+    diags->dump();
+
+  // Local process manager
+  initialize_process_manager();
+
+  // Ensure only one copy of traffic server is running
+  check_lockfile();
+
+  // Set the core limit for the process
+  init_core_size();
+  init_system();
+
+  // Adjust system and process settings
+  adjust_sys_settings();
+
+  // Restart syslog now that we have configuration info
+  syslog_log_configure();
+
+  if (!num_accept_threads)
+    REC_ReadConfigInteger(num_accept_threads, "proxy.config.accept_threads");
+
+  if (!num_task_threads)
+    REC_ReadConfigInteger(num_task_threads, "proxy.config.task_threads");
+
+  xptr<char> user(MAX_LOGIN + 1);
+
+  *user = '\0';
+  admin_user_p = ((REC_ERR_OKAY == REC_ReadConfigString(user, "proxy.config.admin.user_id", MAX_LOGIN)) &&
+                  (*user != '\0') && (0 != strcmp(user, "#-1")));
+
+# if TS_USE_POSIX_CAP
+  // Change the user of the process.
+  // Do this before we start threads so we control the user id of the
+  // threads (rather than have it change asynchronously during thread
+  // execution). We also need to do this before we fiddle with capabilities
+  // as those are thread local and if we change the user id it will
+  // modify the capabilities in other threads, breaking things.
+  if (admin_user_p) {
+    PreserveCapabilities();
+    change_uid_gid(user);
+    RestrictCapabilities();
+  }
+# endif
+
+  // Can't generate a log message yet, do that right after Diags is
+  // setup.
+
+  // This call is required for win_9xMe
+  //without this this_ethread() is failing when
+  //start_HttpProxyServer is called from main thread
+  Thread *main_thread = new EThread;
+  main_thread->set_specific();
+
+  // Re-initialize diagsConfig based on records.config configuration
+  if (diagsConfig) {
+    RecDebugOff();
+    delete(diagsConfig);
+  }
+  diagsConfig = new DiagsConfig(DIAGS_LOG_FILENAME, error_tags, action_tags, true);
+  diags = diagsConfig->diags;
+  RecSetDiags(diags);
+  diags->prefix_str = "Server ";
+  if (is_debug_tag_set("diags"))
+    diags->dump();
+# if TS_USE_POSIX_CAP
+  if (is_debug_tag_set("server"))
+    DebugCapabilities("server"); // Can do this now, logging is up.
+# endif
+
+  // Check if we should do mlockall()
+#if defined(MCL_FUTURE)
+  int mlock_flags = 0;
+  REC_ReadConfigInteger(mlock_flags, "proxy.config.mlock_enabled");
+
+  if (mlock_flags == 2) {
+    if (0 != mlockall(MCL_CURRENT | MCL_FUTURE))
+      Warning("Unable to mlockall() on startup");
+    else
+      Debug("server", "Successfully called mlockall()");
+  }
+#endif
+
+  // Check for core file
+  if (core_file[0] != '\0') {
+    process_core(core_file);
+    _exit(0);
+  }
+
+  // We need to do this early so we can initialize the Machine
+  // singleton, which depends on configuration values loaded in this.
+  // We want to initialize Machine as early as possible because it
+  // has other dependencies. Hopefully not in init_HttpProxyServer().
+  HttpConfig::startup();
+  /* Set up the machine with the outbound address if that's set,
+     or the inbound address if set, otherwise let it default.
+  */
+  IpEndpoint machine_addr;
+  ink_zero(machine_addr);
+  if (HttpConfig::m_master.outbound_ip4.isValid())
+    machine_addr.assign(HttpConfig::m_master.outbound_ip4);
+  else if (HttpConfig::m_master.outbound_ip6.isValid())
+    machine_addr.assign(HttpConfig::m_master.outbound_ip6);
+  else if (HttpConfig::m_master.inbound_ip4.isValid())
+    machine_addr.assign(HttpConfig::m_master.inbound_ip4);
+  else if (HttpConfig::m_master.inbound_ip6.isValid())
+    machine_addr.assign(HttpConfig::m_master.inbound_ip6);
+  Machine::init(0, &machine_addr.sa);
+
+  // pmgmt->start() must occur after initialization of Diags but
+  // before calling RecProcessInit()
+
+  REC_ReadConfigInteger(res_track_memory, "proxy.config.res_track_memory");
+
+  init_http_header();
+  ts_session_protocol_well_known_name_indices_init();
+
+  // Sanity checks
+  check_fd_limit();
+  command_flag = command_flag || *command_string;
+
+  // Set up store
+  if (!command_flag && initialize_store())
+    ProcessFatal("unable to initialize storage, (Re)Configuration required\n");
+
+  // Alter the frequecies at which the update threads will trigger
+#define SET_INTERVAL(scope, name, var) do { \
+  RecInt tmpint; \
+  Debug("statsproc", "Looking for %s\n", name); \
+  if (RecGetRecordInt(name, &tmpint) == REC_ERR_OKAY) { \
+    Debug("statsproc", "Found %s\n", name); \
+    scope##_set_##var(tmpint); \
+  } \
+} while(0)
+  SET_INTERVAL(RecProcess, "proxy.config.config_update_interval_ms", config_update_interval_ms);
+  SET_INTERVAL(RecProcess, "proxy.config.raw_stat_sync_interval_ms", raw_stat_sync_interval_ms);
+  SET_INTERVAL(RecProcess, "proxy.config.remote_sync_interval_ms", remote_sync_interval_ms);
+
+  // Initialize the stat pages manager
+  statPagesManager.init();
+
+  //////////////////////////////////////////////////////////////////////
+  // Determine if Cache Clustering is enabled, since the transaction
+  // on a thread changes require special consideration to allow
+  // minimial Cache Clustering functionality.
+  //////////////////////////////////////////////////////////////////////
+  RecInt cluster_type;
+  cache_clustering_enabled = 0;
+
+  if (RecGetRecordInt("proxy.local.cluster.type", &cluster_type) == REC_ERR_OKAY) {
+    if (cluster_type == 1)
+      cache_clustering_enabled = 1;
+  }
+  Note("cache clustering %s", cache_clustering_enabled ? "enabled" : "disabled");
+
+  // Initialize New Stat system
+  initialize_all_global_stats();
+
+  num_of_net_threads = adjust_num_of_net_threads(num_of_net_threads);
+
+  size_t stacksize;
+  REC_ReadConfigInteger(stacksize, "proxy.config.thread.default.stacksize");
+
+  // This has some special semantics, in that providing this configuration on
+  // command line has higher priority than what is set in records.config.
+  if (-1 != poll_timeout) {
+    net_config_poll_timeout = poll_timeout;
+  } else {
+    REC_ReadConfigInteger(net_config_poll_timeout, "proxy.config.net.poll_timeout");
+  }
+
+  // This shouldn't happen, but lets make sure we run somewhat reasonable.
+  if (net_config_poll_timeout < 0) {
+    net_config_poll_timeout = 10; // Default value for all platform.
+  }
+
+  ink_event_system_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_net_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_aio_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_cache_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  ink_hostdb_init(makeModuleVersion(HOSTDB_MODULE_MAJOR_VERSION, HOSTDB_MODULE_MINOR_VERSION , PRIVATE_MODULE_HEADER));
+  ink_dns_init(makeModuleVersion(HOSTDB_MODULE_MAJOR_VERSION, HOSTDB_MODULE_MINOR_VERSION , PRIVATE_MODULE_HEADER));
+  ink_split_dns_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  eventProcessor.start(num_of_net_threads, stacksize);
+
+  int num_remap_threads = 0;
+  REC_ReadConfigInteger(num_remap_threads, "proxy.config.remap.num_remap_threads");
+  if (num_remap_threads < 1)
+    num_remap_threads = 0;
+
+  if (num_remap_threads > 0) {
+    Note("using the new remap processor system with %d threads", num_remap_threads);
+    remapProcessor.setUseSeparateThread();
+  }
+
+  init_signals2();
+  // log initialization moved down
+
+  if (command_flag) {
+    int cmd_ret = cmd_mode();
+
+    if (cmd_ret != CMD_IN_PROGRESS) {
+      if (cmd_ret >= 0)
+        _exit(0);               // everything is OK
+      else
+        _exit(1);               // in error
+    }
+  } else {
+    remapProcessor.start(num_remap_threads, stacksize);
+    RecProcessStart();
+    initCacheControl();
+    initCongestionControl();
+    IpAllow::startup();
+    ParentConfig::startup();
+#ifdef SPLIT_DNS
+    SplitDNSConfig::startup();
+#endif
+
+# if TS_HAS_SPDY
+    extern int spdy_config_load ();
+    spdy_config_load(); // must be before HttpProxyPort init.
+# endif
+    // Load HTTP port data. getNumSSLThreads depends on this.
+    if (!HttpProxyPort::loadValue(http_accept_port_descriptor))
+      HttpProxyPort::loadConfig();
+    HttpProxyPort::loadDefaultIfEmpty();
+
+    if (!accept_mss)
+      REC_ReadConfigInteger(accept_mss, "proxy.config.net.sock_mss_in");
+
+    NetProcessor::accept_mss = accept_mss;
+    netProcessor.start(0, stacksize);
+
+
+    dnsProcessor.start(0, stacksize);
+    if (hostDBProcessor.start() < 0)
+      SignalWarning(MGMT_SIGNAL_SYSTEM_ERROR, "bad hostdb or storage configuration, hostdb disabled");
+    clusterProcessor.init();
+
+    // initialize logging (after event and net processor)
+    Log::init(remote_management_flag ? 0 : Log::NO_REMOTE_MANAGEMENT);
+
+    // Init plugins as soon as logging is ready.
+    plugin_init();        // plugin.config
+
+    SSLConfigParams::init_ssl_ctx_cb = init_ssl_ctx_callback;
+    sslNetProcessor.start(getNumSSLThreads(), stacksize);
+    pmgmt->registerPluginCallbacks(global_config_cbs);
+
+    cacheProcessor.set_after_init_callback(&CB_After_Cache_Init);
+    cacheProcessor.start();
+
+    // UDP net-threads are turned off by default.
+    if (!num_of_udp_threads)
+      REC_ReadConfigInteger(num_of_udp_threads, "proxy.config.udp.threads");
+    if (num_of_udp_threads)
+      udpNet.start(num_of_udp_threads, stacksize);
+
+    //acc.init();
+    //if (auto_clear_authdb_flag)
+     // acc.clear_cache();
+    //acc.start();
+    // pmgmt initialization moved up, needed by RecProcessInit
+    //pmgmt->start();
+    start_stats_snap();
+
+    // Initialize Response Body Factory
+    body_factory = new HttpBodyFactory;
+
+    // Start IP to userName cache processor used
+    // by RADIUS and FW1 plug-ins.
+    //ipToUserNameCacheProcessor.start();
+
+    // Initialize the system for SIMPLE support
+    //  Simple::init();
+
+    // Initialize the system for RAFT support
+    // All this is handled by plugin support code
+    //   Raft::init();
+
+    // Continuation Statistics Dump
+    if (show_statistics)
+      eventProcessor.schedule_every(new ShowStats(), HRTIME_SECONDS(show_statistics), ET_CALL);
+
+
+    //////////////////////////////////////
+    // main server logic initiated here //
+    //////////////////////////////////////
+
+    transformProcessor.start();
+
+    init_HttpProxyServer(num_accept_threads);
+
+    int http_enabled = 1;
+    REC_ReadConfigInteger(http_enabled, "proxy.config.http.enabled");
+
+    if (http_enabled) {
+      int icp_enabled = 0;
+      REC_ReadConfigInteger(icp_enabled, "proxy.config.icp.enabled");
+
+      // call the ready hooks before we start accepting connections.
+      APIHook* hook = lifecycle_hooks->get(TS_LIFECYCLE_PORTS_INITIALIZED_HOOK);
+      while (hook) {
+        hook->invoke(TS_EVENT_LIFECYCLE_PORTS_INITIALIZED, NULL);
+        hook = hook->next();
+      }
+
+      int delay_p = 0;
+      REC_ReadConfigInteger(delay_p, "proxy.config.http.wait_for_cache");
+
+      // Delay only if config value set and flag value is zero
+      // (-1 => cache already initialized)
+      if (delay_p && ink_atomic_cas(&delay_listen_for_cache_p, 0, 1)) {
+        Debug("http_listen", "Delaying listen, waiting for cache initialization");
+      } else {
+        start_HttpProxyServer(); // PORTS_READY_HOOK called from in here
+      }
+      if (icp_enabled)
+        icpProcessor.start();
+    }
+
+    // "Task" processor, possibly with its own set of task threads
+    tasksProcessor.start(num_task_threads, stacksize);
+
+    int back_door_port = NO_FD;
+    REC_ReadConfigInteger(back_door_port, "proxy.config.process_manager.mgmt_port");
+    if (back_door_port != NO_FD)
+      start_HttpProxyServerBackDoor(back_door_port, num_accept_threads > 0 ? 1 : 0); // One accept thread is enough
+
+    if (netProcessor.socks_conf_stuff->accept_enabled) {
+      start_SocksProxy(netProcessor.socks_conf_stuff->accept_port);
+    }
+
+    ///////////////////////////////////////////
+    // Initialize Scheduled Update subsystem
+    ///////////////////////////////////////////
+    updateManager.start();
+
+    pmgmt->registerMgmtCallback(MGMT_EVENT_SHUTDOWN, mgmt_restart_shutdown_callback, NULL);
+    pmgmt->registerMgmtCallback(MGMT_EVENT_RESTART, mgmt_restart_shutdown_callback, NULL);
+
+    // Callback for various storage commands. These all go to the same function so we
+    // pass the event code along so it can do the right thing. We cast that to <int> first
+    // just to be safe because the value is a #define, not a typed value.
+    pmgmt->registerMgmtCallback(MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE, mgmt_storage_device_cmd_callback, reinterpret_cast<void*>(static_cast<int>(MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE)));
+
+    // The main thread also becomes a net thread.
+    ink_set_thread_name("[ET_NET 0]");
+
+    Note("traffic server running");
+
+#if TS_HAS_TESTS
+    TransformTest::run();
+    run_HostDBTest();
+    //  run_SimpleHttp();
+    run_RegressionTest();
+#endif
+
+    run_AutoStop();
+  }
+
+# if ! TS_USE_POSIX_CAP
+  if (admin_user_p) {
+    change_uid_gid(user);
+    DebugCapabilities("server");
+  }
+# endif
+
+  this_thread()->execute();
+}
+
+
+#if TS_HAS_TESTS
+//////////////////////////////
+// Unit Regresion Test Hook //
+//////////////////////////////
+
+#include "HdrTest.h"
+
+REGRESSION_TEST(Hdrs) (RegressionTest * t, int atype, int *pstatus) {
+  HdrTest ht;
+  *pstatus = ht.go(t, atype);
+  return;
+}
+#endif
+
+static void *
+mgmt_restart_shutdown_callback(void *, char *, int /* data_len ATS_UNUSED */)
+{
+  sync_cache_dir_on_shutdown();
+  return NULL;
+}
+
+static void*
+mgmt_storage_device_cmd_callback(void* data, char* arg, int len)
+{
+  // data is the device name to control
+  CacheDisk* d = cacheProcessor.find_by_path(arg, len);
+  // Actual command is in @a data.
+  intptr_t cmd = reinterpret_cast<intptr_t>(data);
+
+  if (d) {
+    switch (cmd) {
+    case MGMT_EVENT_STORAGE_DEVICE_CMD_OFFLINE:
+      Debug("server", "Marking %.*s offline", len, arg);
+      cacheProcessor.mark_storage_offline(d);
+      break;
+    }
+  }
+  return NULL;
+}
+
+static void
+init_ssl_ctx_callback(void *ctx, bool server)
+{
+  TSEvent event = server ? TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED : TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED;
+  APIHook *hook = lifecycle_hooks->get(server ? TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK : TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK);
+
+  while (hook) {
+    hook->invoke(event, ctx);
+    hook = hook->next();
+  }
+}
diff --git a/proxy/Main.h b/proxy/Main.h
new file mode 100644
index 00000000..f5e5d913
--- /dev/null
+++ b/proxy/Main.h
@@ -0,0 +1,83 @@
+/** @file
+
+  This is the primary include file for the proxy cache system.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#ifndef _Main_h_
+#define	_Main_h_
+
+#include <ts/ink_defs.h>
+#include "libts.h"
+#include "Regression.h"
+#include "I_Version.h"
+
+
+//
+// Constants
+//
+#define ET_CACHE ET_CALL
+
+// TODO: consolidate location of these defaults
+#define DEFAULT_ROOT_DIRECTORY            PREFIX
+#define DEFAULT_LOCAL_STATE_DIRECTORY     "var/trafficserver"
+#define DEFAULT_SYSTEM_CONFIG_DIRECTORY   "etc/trafficserver"
+#define DEFAULT_LOG_DIRECTORY             "var/log/trafficserver"
+
+//
+// Global Data
+//
+// Global Configuration
+extern int accept_till_done;
+extern int http_accept_file_descriptor;
+extern int command_flag;
+extern int auto_clear_hostdb_flag;
+extern int auto_clear_cache_flag;
+extern int fds_limit;
+extern int debug_level;
+extern char cluster_host[MAXDNAME + 1];
+extern int cluster_port_number;
+
+extern int remote_management_flag;
+
+inkcoreapi extern int qt_accept_file_descriptor;
+inkcoreapi extern int cache_clustering_enabled;
+
+// Debugging Configuration
+extern char debug_host[MAXDNAME + 1];
+extern int debug_port;
+
+// Default socket buffer limits
+extern int default_sndbuf_size;
+extern int default_rcvbuf_size;
+
+//
+// Functions
+//
+void shutdown_system();
+inline bool
+maintainance_mode()
+{
+  return (command_flag ? true : false);
+}
+
+extern const Version version;
+extern AppVersionInfo appVersionInfo;
+
+#endif /* _Main_h_ */
diff --git a/proxy/Makefile.am b/proxy/Makefile.am
new file mode 100644
index 00000000..6a521024
--- /dev/null
+++ b/proxy/Makefile.am
@@ -0,0 +1,363 @@
+# proxy Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Note that hdrs is targeted from ../Makefile.am
+SUBDIRS = congest http spdy logging config
+noinst_LIBRARIES =
+bin_PROGRAMS = \
+  traffic_server \
+  traffic_logcat \
+  traffic_logstats \
+  traffic_sac
+
+noinst_PROGRAMS = \
+  test_xml_parser
+
+TESTS = \
+  tests/test_logstats_json \
+  tests/test_logstats_summary \
+  test_xml_parser
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(srcdir)/http \
+  -I$(srcdir)/spdy \
+  -I$(srcdir)/logging \
+  -I$(srcdir)/http/remap  \
+  -I$(srcdir)/hdrs \
+  -I$(srcdir)/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+noinst_HEADERS = \
+  ConfigParse.h \
+  Show.h
+
+# These are currently built separate, as part of building the lib/ tree, using
+# the normal LuaJIT build system. We are using the .o's directly, instead of the
+# luajit.a to avoid the linker from optimizing symbols away. We could maybe
+# switch to using the luajit.so, but that involves making sure it installs safely
+# and cleanly.
+LUAJIT = \
+  lib_aux.o \
+  lib_base.o \
+  lib_bit.o \
+  lib_debug.o \
+  lib_ffi.o \
+  lib_init.o \
+  lib_io.o \
+  lib_jit.o \
+  lib_math.o \
+  lib_os.o \
+  lib_package.o \
+  lib_string.o \
+  lib_table.o \
+  lj_alloc.o \
+  lj_api.o \
+  lj_asm.o \
+  lj_bc.o \
+  lj_bcread.o \
+  lj_bcwrite.o \
+  lj_carith.o \
+  lj_ccall.o \
+  lj_ccallback.o \
+  lj_cconv.o \
+  lj_cdata.o \
+  lj_char.o \
+  lj_clib.o \
+  lj_cparse.o \
+  lj_crecord.o \
+  lj_ctype.o \
+  lj_debug.o \
+  lj_dispatch.o \
+  lj_err.o \
+  lj_ffrecord.o \
+  lj_func.o \
+  lj_gc.o \
+  lj_gdbjit.o \
+  lj_ir.o \
+  lj_lex.o \
+  lj_lib.o \
+  lj_load.o \
+  lj_mcode.o \
+  lj_meta.o \
+  lj_obj.o \
+  lj_opt_dce.o \
+  lj_opt_fold.o \
+  lj_opt_loop.o \
+  lj_opt_mem.o \
+  lj_opt_narrow.o \
+  lj_opt_sink.o \
+  lj_opt_split.o \
+  lj_parse.o \
+  lj_record.o \
+  lj_snap.o \
+  lj_state.o \
+  lj_str.o \
+  lj_strscan.o \
+  lj_tab.o \
+  lj_trace.o \
+  lj_udata.o \
+  lj_vm.o \
+  lj_vmevent.o \
+  lj_vmmath.o
+
+if STATIC_LIBTS
+    which_libts = $(top_builddir)/lib/ts/.libs/libtsutil.a
+else
+    which_libts = $(top_builddir)/lib/ts/libtsutil.la
+endif
+
+EXTRA_DIST = InkAPITestTool.cc example_alarm_bin.sh example_prep.sh
+
+traffic_server_SOURCES = \
+  AbstractBuffer.cc \
+  AbstractBuffer.h \
+  CacheControl.cc \
+  CacheControl.h \
+  ControlBase.cc \
+  ControlBase.h \
+  ControlMatcher.cc \
+  ControlMatcher.h \
+  CoreUtils.cc \
+  CoreUtils.h \
+  DynamicStats.h \
+  EventName.cc \
+  FetchSM.cc \
+  HttpTransStats.h \
+  ICP.cc \
+  ICP.h \
+  ICPConfig.cc \
+  ICPProcessor.cc \
+  ICPProcessor.h \
+  ICPStats.cc \
+  ICPevents.h \
+  ICPlog.h \
+  IPAllow.cc \
+  IPAllow.h \
+  InkAPI.cc \
+  InkAPIInternal.h \
+  InkIOCoreAPI.cc \
+  Main.cc \
+  Main.h \
+  ParentSelection.cc \
+  ParentSelection.h \
+  Plugin.cc \
+  Plugin.h \
+  PluginVC.cc \
+  PluginVC.h \
+  Prefetch.cc \
+  Prefetch.h \
+  ProtocolProbeSessionAccept.cc \
+  ProtocolProbeSessionAccept.h \
+  ReverseProxy.cc \
+  ReverseProxy.h \
+  SocksProxy.cc \
+  StatPages.cc \
+  StatPages.h \
+  StatSystem.cc \
+  StatSystem.h \
+  Transform.cc \
+  Transform.h \
+  TransformInternal.h \
+  Update.cc \
+  Update.h
+
+if BUILD_TESTS
+  traffic_server_SOURCES +=  InkAPITest.cc  \
+    RegressionSM.h \
+    RegressionSM.cc
+endif
+
+traffic_server_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_server_LDADD = \
+  http/libhttp.a \
+  spdy/libspdy.a \
+  http/remap/libhttp_remap.a \
+  congest/libCongestionControl.a \
+  logging/liblogging.a \
+  logging/liblogcollation.a \
+  hdrs/libhdrs.a  \
+  shared/liberror.a  \
+  shared/libdiagsconfig.a  \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/iocore/utils/libinkutils.a \
+  $(top_builddir)/iocore/cluster/libinkcluster.a \
+  $(top_builddir)/iocore/dns/libinkdns.a \
+  $(top_builddir)/iocore/hostdb/libinkhostdb.a \
+  $(top_builddir)/iocore/dns/libinkdns.a \
+  $(top_builddir)/iocore/cluster/libinkcluster.a \
+  $(top_builddir)/iocore/cache/libinkcache.a \
+  $(top_builddir)/iocore/aio/libinkaio.a \
+  $(top_builddir)/iocore/net/libinknet.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(which_libts) \
+  @HWLOC_LIBS@ \
+  @LIBPCRE@ \
+  @OPENSSL_LIBS@ \
+  @LIBTCL@ \
+  @LIBEXPAT@ \
+  @LIBDEMANGLE@ \
+  @LIBCAP@ \
+  @LIBRESOLV@ \
+  @LIBZ@ \
+  @LIBLZMA@ \
+  @LIBPROFILER@ \
+  @SPDYLAY_LIBS@ \
+  -lm
+
+if BUILD_LUAJIT
+  traffic_server_LDADD += $(LUAJIT:%=$(top_builddir)/lib/luajit/src/%)
+endif
+
+# On Darwin LuaJIT requires magic link options, otherwise it will crash in luaL_openlibs() at startup. See
+# http://luajit.org/install.html.
+traffic_server_LDFLAGS += @TS_LUAJIT_LDFLAGS@
+
+traffic_logcat_SOURCES = logcat.cc
+traffic_logcat_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_logcat_LDADD = \
+  logging/liblogging.a \
+  shared/libdiagsconfig.a \
+  shared/libUglyLogStubs.a \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ @HWLOC_LIBS@ \
+  @LIBEXPAT@ @LIBDEMANGLE@ @LIBPROFILER@ -lm
+
+traffic_logstats_SOURCES = logstats.cc
+traffic_logstats_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_logstats_LDADD = \
+  logging/liblogging.a \
+  shared/libdiagsconfig.a \
+  shared/libUglyLogStubs.a \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ @HWLOC_LIBS@ \
+  @LIBEXPAT@ @LIBDEMANGLE@ @LIBPROFILER@ -lm
+
+traffic_sac_SOURCES = \
+  sac.cc \
+  ICP.cc \
+  ICPConfig.cc \
+  ICPProcessor.cc \
+  ICPStats.cc \
+  IPAllow.cc \
+  ParentSelection.cc \
+  ControlBase.cc \
+  ControlMatcher.cc \
+  CacheControl.cc \
+  StatSystem.cc \
+  ReverseProxy.cc \
+  EventName.cc \
+  StatPages.cc \
+  PluginVC.cc \
+  AbstractBuffer.cc \
+  Transform.cc \
+  Prefetch.cc \
+  ProtocolProbeSessionAccept.cc \
+  ProtocolProbeSessionAccept.h \
+  Update.cc \
+  Plugin.cc \
+  InkAPI.cc \
+  FetchSM.cc \
+  InkIOCoreAPI.cc
+
+traffic_sac_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_sac_LDADD = \
+  http/libhttp.a \
+  spdy/libspdy.a \
+  shared/libdiagsconfig.a \
+  http/remap/libhttp_remap.a \
+  congest/libCongestionControl.a \
+  logging/liblogging.a \
+  logging/liblogcollation.a \
+  hdrs/libhdrs.a \
+  shared/liberror.a \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/iocore/cluster/libinkcluster.a \
+  $(top_builddir)/iocore/dns/libinkdns.a \
+  $(top_builddir)/iocore/hostdb/libinkhostdb.a \
+  $(top_builddir)/iocore/cluster/libinkcluster.a \
+  $(top_builddir)/iocore/cache/libinkcache.a \
+  $(top_builddir)/iocore/utils/libinkutils.a \
+  $(top_builddir)/iocore/aio/libinkaio.a \
+  $(top_builddir)/iocore/net/libinknet.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ @HWLOC_LIBS@ \
+  @LIBEXPAT@ @LIBDEMANGLE@ @LIBZ@ @LIBLZMA@ @LIBPROFILER@ @SPDYLAY_LIBS@ -lm
+
+if BUILD_TESTS
+  traffic_sac_SOURCES += RegressionSM.cc
+endif
+
+
+test_xml_parser_SOURCES = test_xml_parser.cc
+test_xml_parser_LDADD = \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  shared/libsignals.a \
+  shared/libxml.a \
+  @LIBTCL@
+
+versiondir = $(pkgsysconfdir)
+
+install-data-local:
+	if [ `id -un` != "root" ]; then \
+		$(INSTALL) -d $(DESTDIR)$(pkglocalstatedir) $(DESTDIR)$(pkglogdir) $(DESTDIR)$(pkgruntimedir) \
+				$(DESTDIR)$(pkgsysconfdir) $(DESTDIR)$(pkgdatadir) $(DESTDIR)$(pkgcachedir); \
+	else \
+		 $(INSTALL) -d $(DESTDIR)$(pkglocalstatedir); \
+		 $(INSTALL) -d -o $(pkgsysuser) -g $(pkgsysgroup) $(DESTDIR)$(pkglogdir) \
+				$(DESTDIR)$(pkgruntimedir) $(DESTDIR)$(pkgsysconfdir) \
+				$(DESTDIR)$(pkgdatadir) $(DESTDIR)$(pkgcachedir); \
+	fi
+
+install-data-hook:
+	if [ `id -un` == "root" ]; then \
+		chown -R $(pkgsysuser):$(pkgsysgroup) $(DESTDIR)$(pkgsysconfdir) $(DESTDIR)$(pkgdatadir);\
+	fi
+	-echo "<TS_VERSION> $(PACKAGE_VERSION)" > $(DESTDIR)$(pkgsysconfdir)/trafficserver-release
diff --git a/proxy/Makefile.in b/proxy/Makefile.in
new file mode 100644
index 00000000..9f34eea8
--- /dev/null
+++ b/proxy/Makefile.in
@@ -0,0 +1,1842 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# proxy Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+bin_PROGRAMS = traffic_server$(EXEEXT) traffic_logcat$(EXEEXT) \
+	traffic_logstats$(EXEEXT) traffic_sac$(EXEEXT)
+noinst_PROGRAMS = test_xml_parser$(EXEEXT)
+TESTS = tests/test_logstats_json tests/test_logstats_summary \
+	test_xml_parser$(EXEEXT)
+@BUILD_TESTS_TRUE@am__append_1 = InkAPITest.cc  \
+@BUILD_TESTS_TRUE@    RegressionSM.h \
+@BUILD_TESTS_TRUE@    RegressionSM.cc
+
+@BUILD_LUAJIT_TRUE@am__append_2 = $(LUAJIT:%=$(top_builddir)/lib/luajit/src/%)
+@BUILD_TESTS_TRUE@am__append_3 = RegressionSM.cc
+subdir = proxy
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp $(noinst_HEADERS) \
+	$(top_srcdir)/build/aux/test-driver
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
+	$(top_srcdir)/build/ax_check_openssl.m4 \
+	$(top_srcdir)/build/ax_compare_version.m4 \
+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
+	$(top_srcdir)/build/ax_cxx_compile_stdcxx_11.m4 \
+	$(top_srcdir)/build/ax_lib_curl.m4 \
+	$(top_srcdir)/build/ax_lib_readline.m4 \
+	$(top_srcdir)/build/ax_path_generic.m4 \
+	$(top_srcdir)/build/ax_perl_modules.m4 \
+	$(top_srcdir)/build/ax_with_curses.m4 \
+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
+	$(top_srcdir)/build/ltversion.m4 \
+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
+	$(top_srcdir)/build/network.m4 $(top_srcdir)/build/pcre.m4 \
+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
+	$(top_srcdir)/build/tcmalloc.m4 $(top_srcdir)/build/xml.m4 \
+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+LIBRARIES = $(noinst_LIBRARIES)
+am__installdirs = "$(DESTDIR)$(bindir)"
+PROGRAMS = $(bin_PROGRAMS) $(noinst_PROGRAMS)
+am_test_xml_parser_OBJECTS = test_xml_parser.$(OBJEXT)
+test_xml_parser_OBJECTS = $(am_test_xml_parser_OBJECTS)
+test_xml_parser_DEPENDENCIES =  \
+	$(top_builddir)/lib/records/librecprocess.a \
+	$(top_builddir)/mgmt/libmgmt_p.a \
+	$(top_builddir)/mgmt/utils/libutils_p.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/lib/ts/libtsutil.la shared/libsignals.a \
+	shared/libxml.a
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+am_traffic_logcat_OBJECTS = logcat.$(OBJEXT)
+traffic_logcat_OBJECTS = $(am_traffic_logcat_OBJECTS)
+traffic_logcat_DEPENDENCIES = logging/liblogging.a \
+	shared/libdiagsconfig.a shared/libUglyLogStubs.a \
+	shared/libsignals.a shared/libxml.a \
+	$(top_builddir)/mgmt/utils/libutils_p.a \
+	$(top_builddir)/mgmt/libmgmt_p.a \
+	$(top_builddir)/lib/records/librecprocess.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/lib/ts/libtsutil.la
+traffic_logcat_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(traffic_logcat_LDFLAGS) \
+	$(LDFLAGS) -o $@
+am_traffic_logstats_OBJECTS = logstats.$(OBJEXT)
+traffic_logstats_OBJECTS = $(am_traffic_logstats_OBJECTS)
+traffic_logstats_DEPENDENCIES = logging/liblogging.a \
+	shared/libdiagsconfig.a shared/libUglyLogStubs.a \
+	shared/libsignals.a shared/libxml.a \
+	$(top_builddir)/mgmt/utils/libutils_p.a \
+	$(top_builddir)/mgmt/libmgmt_p.a \
+	$(top_builddir)/lib/records/librecprocess.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/lib/ts/libtsutil.la
+traffic_logstats_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(traffic_logstats_LDFLAGS) \
+	$(LDFLAGS) -o $@
+am__traffic_sac_SOURCES_DIST = sac.cc ICP.cc ICPConfig.cc \
+	ICPProcessor.cc ICPStats.cc IPAllow.cc ParentSelection.cc \
+	ControlBase.cc ControlMatcher.cc CacheControl.cc StatSystem.cc \
+	ReverseProxy.cc EventName.cc StatPages.cc PluginVC.cc \
+	AbstractBuffer.cc Transform.cc Prefetch.cc \
+	ProtocolProbeSessionAccept.cc ProtocolProbeSessionAccept.h \
+	Update.cc Plugin.cc InkAPI.cc FetchSM.cc InkIOCoreAPI.cc \
+	RegressionSM.cc
+@BUILD_TESTS_TRUE@am__objects_1 = RegressionSM.$(OBJEXT)
+am_traffic_sac_OBJECTS = sac.$(OBJEXT) ICP.$(OBJEXT) \
+	ICPConfig.$(OBJEXT) ICPProcessor.$(OBJEXT) ICPStats.$(OBJEXT) \
+	IPAllow.$(OBJEXT) ParentSelection.$(OBJEXT) \
+	ControlBase.$(OBJEXT) ControlMatcher.$(OBJEXT) \
+	CacheControl.$(OBJEXT) StatSystem.$(OBJEXT) \
+	ReverseProxy.$(OBJEXT) EventName.$(OBJEXT) StatPages.$(OBJEXT) \
+	PluginVC.$(OBJEXT) AbstractBuffer.$(OBJEXT) \
+	Transform.$(OBJEXT) Prefetch.$(OBJEXT) \
+	ProtocolProbeSessionAccept.$(OBJEXT) Update.$(OBJEXT) \
+	Plugin.$(OBJEXT) InkAPI.$(OBJEXT) FetchSM.$(OBJEXT) \
+	InkIOCoreAPI.$(OBJEXT) $(am__objects_1)
+traffic_sac_OBJECTS = $(am_traffic_sac_OBJECTS)
+traffic_sac_DEPENDENCIES = http/libhttp.a spdy/libspdy.a \
+	shared/libdiagsconfig.a http/remap/libhttp_remap.a \
+	congest/libCongestionControl.a logging/liblogging.a \
+	logging/liblogcollation.a hdrs/libhdrs.a shared/liberror.a \
+	shared/libsignals.a shared/libxml.a \
+	$(top_builddir)/mgmt/utils/libutils_p.a \
+	$(top_builddir)/mgmt/libmgmt_p.a \
+	$(top_builddir)/iocore/cluster/libinkcluster.a \
+	$(top_builddir)/iocore/dns/libinkdns.a \
+	$(top_builddir)/iocore/hostdb/libinkhostdb.a \
+	$(top_builddir)/iocore/cluster/libinkcluster.a \
+	$(top_builddir)/iocore/cache/libinkcache.a \
+	$(top_builddir)/iocore/utils/libinkutils.a \
+	$(top_builddir)/iocore/aio/libinkaio.a \
+	$(top_builddir)/iocore/net/libinknet.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/lib/records/librecprocess.a \
+	$(top_builddir)/lib/ts/libtsutil.la
+traffic_sac_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(traffic_sac_LDFLAGS) $(LDFLAGS) -o $@
+am__traffic_server_SOURCES_DIST = AbstractBuffer.cc AbstractBuffer.h \
+	CacheControl.cc CacheControl.h ControlBase.cc ControlBase.h \
+	ControlMatcher.cc ControlMatcher.h CoreUtils.cc CoreUtils.h \
+	DynamicStats.h EventName.cc FetchSM.cc HttpTransStats.h ICP.cc \
+	ICP.h ICPConfig.cc ICPProcessor.cc ICPProcessor.h ICPStats.cc \
+	ICPevents.h ICPlog.h IPAllow.cc IPAllow.h InkAPI.cc \
+	InkAPIInternal.h InkIOCoreAPI.cc Main.cc Main.h \
+	ParentSelection.cc ParentSelection.h Plugin.cc Plugin.h \
+	PluginVC.cc PluginVC.h Prefetch.cc Prefetch.h \
+	ProtocolProbeSessionAccept.cc ProtocolProbeSessionAccept.h \
+	ReverseProxy.cc ReverseProxy.h SocksProxy.cc StatPages.cc \
+	StatPages.h StatSystem.cc StatSystem.h Transform.cc \
+	Transform.h TransformInternal.h Update.cc Update.h \
+	InkAPITest.cc RegressionSM.h RegressionSM.cc
+@BUILD_TESTS_TRUE@am__objects_2 = InkAPITest.$(OBJEXT) \
+@BUILD_TESTS_TRUE@	RegressionSM.$(OBJEXT)
+am_traffic_server_OBJECTS = AbstractBuffer.$(OBJEXT) \
+	CacheControl.$(OBJEXT) ControlBase.$(OBJEXT) \
+	ControlMatcher.$(OBJEXT) CoreUtils.$(OBJEXT) \
+	EventName.$(OBJEXT) FetchSM.$(OBJEXT) ICP.$(OBJEXT) \
+	ICPConfig.$(OBJEXT) ICPProcessor.$(OBJEXT) ICPStats.$(OBJEXT) \
+	IPAllow.$(OBJEXT) InkAPI.$(OBJEXT) InkIOCoreAPI.$(OBJEXT) \
+	Main.$(OBJEXT) ParentSelection.$(OBJEXT) Plugin.$(OBJEXT) \
+	PluginVC.$(OBJEXT) Prefetch.$(OBJEXT) \
+	ProtocolProbeSessionAccept.$(OBJEXT) ReverseProxy.$(OBJEXT) \
+	SocksProxy.$(OBJEXT) StatPages.$(OBJEXT) StatSystem.$(OBJEXT) \
+	Transform.$(OBJEXT) Update.$(OBJEXT) $(am__objects_2)
+traffic_server_OBJECTS = $(am_traffic_server_OBJECTS)
+traffic_server_DEPENDENCIES = http/libhttp.a spdy/libspdy.a \
+	http/remap/libhttp_remap.a congest/libCongestionControl.a \
+	logging/liblogging.a logging/liblogcollation.a hdrs/libhdrs.a \
+	shared/liberror.a shared/libdiagsconfig.a shared/libsignals.a \
+	shared/libxml.a $(top_builddir)/mgmt/utils/libutils_p.a \
+	$(top_builddir)/mgmt/libmgmt_p.a \
+	$(top_builddir)/iocore/utils/libinkutils.a \
+	$(top_builddir)/iocore/cluster/libinkcluster.a \
+	$(top_builddir)/iocore/dns/libinkdns.a \
+	$(top_builddir)/iocore/hostdb/libinkhostdb.a \
+	$(top_builddir)/iocore/dns/libinkdns.a \
+	$(top_builddir)/iocore/cluster/libinkcluster.a \
+	$(top_builddir)/iocore/cache/libinkcache.a \
+	$(top_builddir)/iocore/aio/libinkaio.a \
+	$(top_builddir)/iocore/net/libinknet.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/lib/records/librecprocess.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(which_libts) $(am__append_2)
+traffic_server_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+	$(AM_CXXFLAGS) $(CXXFLAGS) $(traffic_server_LDFLAGS) \
+	$(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/lib/ts
+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(test_xml_parser_SOURCES) $(traffic_logcat_SOURCES) \
+	$(traffic_logstats_SOURCES) $(traffic_sac_SOURCES) \
+	$(traffic_server_SOURCES)
+DIST_SOURCES = $(test_xml_parser_SOURCES) $(traffic_logcat_SOURCES) \
+	$(traffic_logstats_SOURCES) $(am__traffic_sac_SOURCES_DIST) \
+	$(am__traffic_server_SOURCES_DIST)
+RECURSIVE_TARGETS = all-recursive check-recursive cscopelist-recursive \
+	ctags-recursive dvi-recursive html-recursive info-recursive \
+	install-data-recursive install-dvi-recursive \
+	install-exec-recursive install-html-recursive \
+	install-info-recursive install-pdf-recursive \
+	install-ps-recursive install-recursive installcheck-recursive \
+	installdirs-recursive pdf-recursive ps-recursive \
+	tags-recursive uninstall-recursive
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+HEADERS = $(noinst_HEADERS)
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+am__recursive_targets = \
+  $(RECURSIVE_TARGETS) \
+  $(RECURSIVE_CLEAN_TARGETS) \
+  $(am__extra_recursive_targets)
+AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
+	check recheck distdir
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+ETAGS = etags
+CTAGS = ctags
+am__tty_colors_dummy = \
+  mgn= red= grn= lgn= blu= brg= std=; \
+  am__color_tests=no
+am__tty_colors = { \
+  $(am__tty_colors_dummy); \
+  if test "X$(AM_COLOR_TESTS)" = Xno; then \
+    am__color_tests=no; \
+  elif test "X$(AM_COLOR_TESTS)" = Xalways; then \
+    am__color_tests=yes; \
+  elif test "X$$TERM" != Xdumb && { test -t 1; } 2>/dev/null; then \
+    am__color_tests=yes; \
+  fi; \
+  if test $$am__color_tests = yes; then \
+    red=''; \
+    grn=''; \
+    lgn=''; \
+    blu=''; \
+    mgn=''; \
+    brg=''; \
+    std=''; \
+  fi; \
+}
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__recheck_rx = ^[ 	]*:recheck:[ 	]*
+am__global_test_result_rx = ^[ 	]*:global-test-result:[ 	]*
+am__copy_in_global_log_rx = ^[ 	]*:copy-in-global-log:[ 	]*
+# A command that, given a newline-separated list of test names on the
+# standard input, print the name of the tests that are to be re-run
+# upon "make recheck".
+am__list_recheck_tests = $(AWK) '{ \
+  recheck = 1; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+        { \
+          if ((getline line2 < ($$0 ".log")) < 0) \
+	    recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[nN][Oo]/) \
+        { \
+          recheck = 0; \
+          break; \
+        } \
+      else if (line ~ /$(am__recheck_rx)[yY][eE][sS]/) \
+        { \
+          break; \
+        } \
+    }; \
+  if (recheck) \
+    print $$0; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# A command that, given a newline-separated list of test names on the
+# standard input, create the global log from their .trs and .log files.
+am__create_global_log = $(AWK) ' \
+function fatal(msg) \
+{ \
+  print "fatal: making $@: " msg | "cat >&2"; \
+  exit 1; \
+} \
+function rst_section(header) \
+{ \
+  print header; \
+  len = length(header); \
+  for (i = 1; i <= len; i = i + 1) \
+    printf "="; \
+  printf "\n\n"; \
+} \
+{ \
+  copy_in_global_log = 1; \
+  global_test_result = "RUN"; \
+  while ((rc = (getline line < ($$0 ".trs"))) != 0) \
+    { \
+      if (rc < 0) \
+         fatal("failed to read from " $$0 ".trs"); \
+      if (line ~ /$(am__global_test_result_rx)/) \
+        { \
+          sub("$(am__global_test_result_rx)", "", line); \
+          sub("[ 	]*$$", "", line); \
+          global_test_result = line; \
+        } \
+      else if (line ~ /$(am__copy_in_global_log_rx)[nN][oO]/) \
+        copy_in_global_log = 0; \
+    }; \
+  if (copy_in_global_log) \
+    { \
+      rst_section(global_test_result ": " $$0); \
+      while ((rc = (getline line < ($$0 ".log"))) != 0) \
+      { \
+        if (rc < 0) \
+          fatal("failed to read from " $$0 ".log"); \
+        print line; \
+      }; \
+      printf "\n"; \
+    }; \
+  close ($$0 ".trs"); \
+  close ($$0 ".log"); \
+}'
+# Restructured Text title.
+am__rst_title = { sed 's/.*/   &   /;h;s/./=/g;p;x;s/ *$$//;p;g' && echo; }
+# Solaris 10 'make', and several other traditional 'make' implementations,
+# pass "-e" to $(SHELL), and POSIX 2008 even requires this.  Work around it
+# by disabling -e (using the XSI extension "set +e") if it's set.
+am__sh_e_setup = case $$- in *e*) set +e;; esac
+# Default flags passed to test drivers.
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+  --enable-hard-errors "$$am__enable_hard_errors" \
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+# To be inserted before the command running the test.  Creates the
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+$(am__sh_e_setup);					\
+$(am__vpath_adj_setup) $(am__vpath_adj)			\
+$(am__tty_colors);					\
+srcdir=$(srcdir); export srcdir;			\
+case "$@" in						\
+  */*) am__odir=`echo "./$@" | sed 's|/[^/]*$$||'`;;	\
+    *) am__odir=.;; 					\
+esac;							\
+test "x$$am__odir" = x"." || test -d "$$am__odir" 	\
+  || $(MKDIR_P) "$$am__odir" || exit $$?;		\
+if test -f "./$$f"; then dir=./;			\
+elif test -f "$$f"; then dir=;				\
+else dir="$(srcdir)/"; fi;				\
+tst=$$dir$$f; log='$@'; 				\
+if test -n '$(DISABLE_HARD_ERRORS)'; then		\
+  am__enable_hard_errors=no; 				\
+else							\
+  am__enable_hard_errors=yes; 				\
+fi; 							\
+case " $(XFAIL_TESTS) " in				\
+  *[\ \	]$$f[\ \	]* | *[\ \	]$$dir$$f[\ \	]*) \
+    am__expect_failure=yes;;				\
+  *)							\
+    am__expect_failure=no;;				\
+esac; 							\
+$(AM_TESTS_ENVIRONMENT) $(TESTS_ENVIRONMENT)
+# A shell command to get the names of the tests scripts with any registered
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+# '$bases'.  This honors runtime overriding of TESTS and TEST_LOGS.  Sadly,
+# we cannot use something simpler, involving e.g., "$(TEST_LOGS:.log=)",
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+# See also 'test-harness-vpath-rewrite.sh' and 'test-trs-basic.sh'.
+am__set_TESTS_bases = \
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+  bases=`for i in $$bases; do echo $$i; done | sed 's/\.log$$//'`; \
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+RECHECK_LOGS = $(TEST_LOGS)
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+am__set_b = \
+  case '$@' in \
+    */*) \
+      case '$*' in \
+        */*) b='$*';; \
+          *) b=`echo '$@' | sed 's/\.log$$//'`; \
+       esac;; \
+    *) \
+      b='$*';; \
+  esac
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+am__relativize = \
+  dir0=`pwd`; \
+  sed_first='s,^\([^/]*\)/.*$$,\1,'; \
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+  sed_butlast='s,/*[^/]*$$,,'; \
+  while test -n "$$dir1"; do \
+    first=`echo "$$dir1" | sed -e "$$sed_first"`; \
+    if test "$$first" != "."; then \
+      if test "$$first" = ".."; then \
+        dir2=`echo "$$dir0" | sed -e "$$sed_last"`/"$$dir2"; \
+        dir0=`echo "$$dir0" | sed -e "$$sed_butlast"`; \
+      else \
+        first2=`echo "$$dir2" | sed -e "$$sed_first"`; \
+        if test "$$first2" = "$$first"; then \
+          dir2=`echo "$$dir2" | sed -e "$$sed_rest"`; \
+        else \
+          dir2="../$$dir2"; \
+        fi; \
+        dir0="$$dir0"/"$$first"; \
+      fi; \
+    fi; \
+    dir1=`echo "$$dir1" | sed -e "$$sed_rest"`; \
+  done; \
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+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+# Note that hdrs is targeted from ../Makefile.am
+SUBDIRS = congest http spdy logging config
+noinst_LIBRARIES = 
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(srcdir)/http \
+  -I$(srcdir)/spdy \
+  -I$(srcdir)/logging \
+  -I$(srcdir)/http/remap  \
+  -I$(srcdir)/hdrs \
+  -I$(srcdir)/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+noinst_HEADERS = \
+  ConfigParse.h \
+  Show.h
+
+
+# These are currently built separate, as part of building the lib/ tree, using
+# the normal LuaJIT build system. We are using the .o's directly, instead of the
+# luajit.a to avoid the linker from optimizing symbols away. We could maybe
+# switch to using the luajit.so, but that involves making sure it installs safely
+# and cleanly.
+LUAJIT = \
+  lib_aux.o \
+  lib_base.o \
+  lib_bit.o \
+  lib_debug.o \
+  lib_ffi.o \
+  lib_init.o \
+  lib_io.o \
+  lib_jit.o \
+  lib_math.o \
+  lib_os.o \
+  lib_package.o \
+  lib_string.o \
+  lib_table.o \
+  lj_alloc.o \
+  lj_api.o \
+  lj_asm.o \
+  lj_bc.o \
+  lj_bcread.o \
+  lj_bcwrite.o \
+  lj_carith.o \
+  lj_ccall.o \
+  lj_ccallback.o \
+  lj_cconv.o \
+  lj_cdata.o \
+  lj_char.o \
+  lj_clib.o \
+  lj_cparse.o \
+  lj_crecord.o \
+  lj_ctype.o \
+  lj_debug.o \
+  lj_dispatch.o \
+  lj_err.o \
+  lj_ffrecord.o \
+  lj_func.o \
+  lj_gc.o \
+  lj_gdbjit.o \
+  lj_ir.o \
+  lj_lex.o \
+  lj_lib.o \
+  lj_load.o \
+  lj_mcode.o \
+  lj_meta.o \
+  lj_obj.o \
+  lj_opt_dce.o \
+  lj_opt_fold.o \
+  lj_opt_loop.o \
+  lj_opt_mem.o \
+  lj_opt_narrow.o \
+  lj_opt_sink.o \
+  lj_opt_split.o \
+  lj_parse.o \
+  lj_record.o \
+  lj_snap.o \
+  lj_state.o \
+  lj_str.o \
+  lj_strscan.o \
+  lj_tab.o \
+  lj_trace.o \
+  lj_udata.o \
+  lj_vm.o \
+  lj_vmevent.o \
+  lj_vmmath.o
+
+@STATIC_LIBTS_FALSE@which_libts = $(top_builddir)/lib/ts/libtsutil.la
+@STATIC_LIBTS_TRUE@which_libts = $(top_builddir)/lib/ts/.libs/libtsutil.a
+EXTRA_DIST = InkAPITestTool.cc example_alarm_bin.sh example_prep.sh
+traffic_server_SOURCES = AbstractBuffer.cc AbstractBuffer.h \
+	CacheControl.cc CacheControl.h ControlBase.cc ControlBase.h \
+	ControlMatcher.cc ControlMatcher.h CoreUtils.cc CoreUtils.h \
+	DynamicStats.h EventName.cc FetchSM.cc HttpTransStats.h ICP.cc \
+	ICP.h ICPConfig.cc ICPProcessor.cc ICPProcessor.h ICPStats.cc \
+	ICPevents.h ICPlog.h IPAllow.cc IPAllow.h InkAPI.cc \
+	InkAPIInternal.h InkIOCoreAPI.cc Main.cc Main.h \
+	ParentSelection.cc ParentSelection.h Plugin.cc Plugin.h \
+	PluginVC.cc PluginVC.h Prefetch.cc Prefetch.h \
+	ProtocolProbeSessionAccept.cc ProtocolProbeSessionAccept.h \
+	ReverseProxy.cc ReverseProxy.h SocksProxy.cc StatPages.cc \
+	StatPages.h StatSystem.cc StatSystem.h Transform.cc \
+	Transform.h TransformInternal.h Update.cc Update.h \
+	$(am__append_1)
+
+# On Darwin LuaJIT requires magic link options, otherwise it will crash in luaL_openlibs() at startup. See
+# http://luajit.org/install.html.
+traffic_server_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@ \
+	@TS_LUAJIT_LDFLAGS@ $(am__empty)
+traffic_server_LDADD = http/libhttp.a spdy/libspdy.a \
+	http/remap/libhttp_remap.a congest/libCongestionControl.a \
+	logging/liblogging.a logging/liblogcollation.a hdrs/libhdrs.a \
+	shared/liberror.a shared/libdiagsconfig.a shared/libsignals.a \
+	shared/libxml.a $(top_builddir)/mgmt/utils/libutils_p.a \
+	$(top_builddir)/mgmt/libmgmt_p.a \
+	$(top_builddir)/iocore/utils/libinkutils.a \
+	$(top_builddir)/iocore/cluster/libinkcluster.a \
+	$(top_builddir)/iocore/dns/libinkdns.a \
+	$(top_builddir)/iocore/hostdb/libinkhostdb.a \
+	$(top_builddir)/iocore/dns/libinkdns.a \
+	$(top_builddir)/iocore/cluster/libinkcluster.a \
+	$(top_builddir)/iocore/cache/libinkcache.a \
+	$(top_builddir)/iocore/aio/libinkaio.a \
+	$(top_builddir)/iocore/net/libinknet.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(top_builddir)/lib/records/librecprocess.a \
+	$(top_builddir)/iocore/eventsystem/libinkevent.a \
+	$(which_libts) @HWLOC_LIBS@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ \
+	@LIBEXPAT@ @LIBDEMANGLE@ @LIBCAP@ @LIBRESOLV@ @LIBZ@ @LIBLZMA@ \
+	@LIBPROFILER@ @SPDYLAY_LIBS@ -lm $(am__append_2)
+traffic_logcat_SOURCES = logcat.cc
+traffic_logcat_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_logcat_LDADD = \
+  logging/liblogging.a \
+  shared/libdiagsconfig.a \
+  shared/libUglyLogStubs.a \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ @HWLOC_LIBS@ \
+  @LIBEXPAT@ @LIBDEMANGLE@ @LIBPROFILER@ -lm
+
+traffic_logstats_SOURCES = logstats.cc
+traffic_logstats_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_logstats_LDADD = \
+  logging/liblogging.a \
+  shared/libdiagsconfig.a \
+  shared/libUglyLogStubs.a \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ @HWLOC_LIBS@ \
+  @LIBEXPAT@ @LIBDEMANGLE@ @LIBPROFILER@ -lm
+
+traffic_sac_SOURCES = sac.cc ICP.cc ICPConfig.cc ICPProcessor.cc \
+	ICPStats.cc IPAllow.cc ParentSelection.cc ControlBase.cc \
+	ControlMatcher.cc CacheControl.cc StatSystem.cc \
+	ReverseProxy.cc EventName.cc StatPages.cc PluginVC.cc \
+	AbstractBuffer.cc Transform.cc Prefetch.cc \
+	ProtocolProbeSessionAccept.cc ProtocolProbeSessionAccept.h \
+	Update.cc Plugin.cc InkAPI.cc FetchSM.cc InkIOCoreAPI.cc \
+	$(am__append_3)
+traffic_sac_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+traffic_sac_LDADD = \
+  http/libhttp.a \
+  spdy/libspdy.a \
+  shared/libdiagsconfig.a \
+  http/remap/libhttp_remap.a \
+  congest/libCongestionControl.a \
+  logging/liblogging.a \
+  logging/liblogcollation.a \
+  hdrs/libhdrs.a \
+  shared/liberror.a \
+  shared/libsignals.a \
+  shared/libxml.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/iocore/cluster/libinkcluster.a \
+  $(top_builddir)/iocore/dns/libinkdns.a \
+  $(top_builddir)/iocore/hostdb/libinkhostdb.a \
+  $(top_builddir)/iocore/cluster/libinkcluster.a \
+  $(top_builddir)/iocore/cache/libinkcache.a \
+  $(top_builddir)/iocore/utils/libinkutils.a \
+  $(top_builddir)/iocore/aio/libinkaio.a \
+  $(top_builddir)/iocore/net/libinknet.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBRESOLV@ @LIBPCRE@ @OPENSSL_LIBS@ @LIBTCL@ @HWLOC_LIBS@ \
+  @LIBEXPAT@ @LIBDEMANGLE@ @LIBZ@ @LIBLZMA@ @LIBPROFILER@ @SPDYLAY_LIBS@ -lm
+
+test_xml_parser_SOURCES = test_xml_parser.cc
+test_xml_parser_LDADD = \
+  $(top_builddir)/lib/records/librecprocess.a \
+  $(top_builddir)/mgmt/libmgmt_p.a \
+  $(top_builddir)/mgmt/utils/libutils_p.a \
+  $(top_builddir)/iocore/eventsystem/libinkevent.a \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  shared/libsignals.a \
+  shared/libxml.a \
+  @LIBTCL@
+
+versiondir = $(pkgsysconfdir)
+all: all-recursive
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign proxy/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign proxy/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
+	for p in $$list; do echo "$$p $$p"; done | \
+	sed 's/$(EXEEXT)$$//' | \
+	while read p p1; do if test -f $$p \
+	 || test -f $$p1 \
+	  ; then echo "$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n;h' \
+	    -e 's|.*|.|' \
+	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
+	sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) files[d] = files[d] " " $$1; \
+	    else { print "f", $$3 "/" $$4, $$1; } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	    if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	    test -z "$$files" || { \
+	    echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(bindir)$$dir'"; \
+	    $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
+	    } \
+	; done
+
+uninstall-binPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
+	test -n "$$list" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(bindir)" && rm -f $$files
+
+clean-binPROGRAMS:
+	@list='$(bin_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
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+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-recursive
+all-am: Makefile $(LIBRARIES) $(PROGRAMS) $(HEADERS)
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool \
+	clean-noinstLIBRARIES clean-noinstPROGRAMS mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am: install-data-local
+	@$(NORMAL_INSTALL)
+	$(MAKE) $(AM_MAKEFLAGS) install-data-hook
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: $(am__recursive_targets) check-am install-am install-data-am \
+	install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-TESTS check-am clean clean-binPROGRAMS clean-generic \
+	clean-libtool clean-noinstLIBRARIES clean-noinstPROGRAMS \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-binPROGRAMS install-data install-data-am \
+	install-data-hook install-data-local install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am recheck tags tags-am \
+	uninstall uninstall-am uninstall-binPROGRAMS
+
+
+install-data-local:
+	if [ `id -un` != "root" ]; then \
+		$(INSTALL) -d $(DESTDIR)$(pkglocalstatedir) $(DESTDIR)$(pkglogdir) $(DESTDIR)$(pkgruntimedir) \
+				$(DESTDIR)$(pkgsysconfdir) $(DESTDIR)$(pkgdatadir) $(DESTDIR)$(pkgcachedir); \
+	else \
+		 $(INSTALL) -d $(DESTDIR)$(pkglocalstatedir); \
+		 $(INSTALL) -d -o $(pkgsysuser) -g $(pkgsysgroup) $(DESTDIR)$(pkglogdir) \
+				$(DESTDIR)$(pkgruntimedir) $(DESTDIR)$(pkgsysconfdir) \
+				$(DESTDIR)$(pkgdatadir) $(DESTDIR)$(pkgcachedir); \
+	fi
+
+install-data-hook:
+	if [ `id -un` == "root" ]; then \
+		chown -R $(pkgsysuser):$(pkgsysgroup) $(DESTDIR)$(pkgsysconfdir) $(DESTDIR)$(pkgdatadir);\
+	fi
+	-echo "<TS_VERSION> $(PACKAGE_VERSION)" > $(DESTDIR)$(pkgsysconfdir)/trafficserver-release
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/ParentSelection.cc b/proxy/ParentSelection.cc
new file mode 100644
index 00000000..85561488
--- /dev/null
+++ b/proxy/ParentSelection.cc
@@ -0,0 +1,1277 @@
+/** @file
+
+  Implementation of Parent Proxy routing
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "ParentSelection.h"
+#include "ControlMatcher.h"
+#include "Main.h"
+#include "Error.h"
+#include "ProxyConfig.h"
+#include "HTTP.h"
+#include "HttpTransact.h"
+
+#define PARENT_RegisterConfigUpdateFunc REC_RegisterConfigUpdateFunc
+#define PARENT_ReadConfigInteger REC_ReadConfigInteger
+#define PARENT_ReadConfigStringAlloc REC_ReadConfigStringAlloc
+
+typedef ControlMatcher<ParentRecord, ParentResult> P_table;
+
+// Global Vars for Parent Selection
+static const char modulePrefix[] = "[ParentSelection]";
+static ConfigUpdateHandler<ParentConfig> * parentConfigUpdate = NULL;
+
+// Config var names
+static const char *file_var = "proxy.config.http.parent_proxy.file";
+static const char *default_var = "proxy.config.http.parent_proxies";
+static const char *retry_var = "proxy.config.http.parent_proxy.retry_time";
+static const char *enable_var = "proxy.config.http.parent_proxy_routing_enable";
+static const char *threshold_var = "proxy.config.http.parent_proxy.fail_threshold";
+static const char *dns_parent_only_var = "proxy.config.http.no_dns_just_forward_to_parent";
+
+static const char *ParentResultStr[] = {
+  "Parent_Undefined",
+  "Parent_Direct",
+  "Parent_Specified",
+  "Parent_Failed"
+};
+
+static const char *ParentRRStr[] = {
+  "false",
+  "strict",
+  "true"
+};
+
+//
+//  Config Callback Prototypes
+//
+enum ParentCB_t
+{
+  PARENT_FILE_CB, PARENT_DEFAULT_CB,
+  PARENT_RETRY_CB, PARENT_ENABLE_CB,
+  PARENT_THRESHOLD_CB, PARENT_DNS_ONLY_CB
+};
+
+// If the parent was set by the external customer api,
+//   our HttpRequestData structure told us what parent to
+//   use and we are only called to preserve clean interface
+//   between HttpTransact & the parent selection code.  The following
+ParentRecord *const extApiRecord = (ParentRecord *) 0xeeeeffff;
+
+ParentConfigParams::ParentConfigParams()
+  : ParentTable(NULL), DefaultParent(NULL), ParentRetryTime(30), ParentEnable(0), FailThreshold(10), DNS_ParentOnly(0)
+{ }
+
+ParentConfigParams::~ParentConfigParams()
+{
+  if (ParentTable) {
+    delete ParentTable;
+  }
+
+  if (DefaultParent) {
+    delete DefaultParent;
+  }
+}
+
+int ParentConfig::m_id = 0;
+
+//
+//   Begin API functions
+//
+void
+ParentConfig::startup()
+{
+  parentConfigUpdate = new ConfigUpdateHandler<ParentConfig>();
+
+  // Load the initial configuration
+  reconfigure();
+
+  // Setup the callbacks for reconfiuration
+  //   parent table
+  parentConfigUpdate->attach(file_var);
+  //   default parent
+  parentConfigUpdate->attach(default_var);
+  //   Retry time
+  parentConfigUpdate->attach(retry_var);
+  //   Enable
+  parentConfigUpdate->attach(enable_var);
+
+  //   Fail Threshold
+  parentConfigUpdate->attach(threshold_var);
+
+  //   DNS Parent Only
+  parentConfigUpdate->attach(dns_parent_only_var);
+}
+
+void
+ParentConfig::reconfigure()
+{
+  char *default_val = NULL;
+  int retry_time = 30;
+  int enable = 0;
+  int fail_threshold;
+  int dns_parent_only;
+
+  ParentConfigParams *params;
+  params = new ParentConfigParams;
+
+  // Allocate parent table
+  params->ParentTable = new P_table(file_var, modulePrefix, &http_dest_tags);
+
+  // Handle default parent
+  PARENT_ReadConfigStringAlloc(default_val, default_var);
+  params->DefaultParent = createDefaultParent(default_val);
+  ats_free(default_val);
+
+  // Handle parent timeout
+  PARENT_ReadConfigInteger(retry_time, retry_var);
+  params->ParentRetryTime = retry_time;
+
+  // Handle parent enable
+  PARENT_ReadConfigInteger(enable, enable_var);
+  params->ParentEnable = enable;
+
+  // Handle the fail threshold
+  PARENT_ReadConfigInteger(fail_threshold, threshold_var);
+  params->FailThreshold = fail_threshold;
+
+  // Handle dns parent only
+  PARENT_ReadConfigInteger(dns_parent_only, dns_parent_only_var);
+  params->DNS_ParentOnly = dns_parent_only;
+
+  m_id = configProcessor.set(m_id, params);
+
+  if (is_debug_tag_set("parent_config")) {
+    ParentConfig::print();
+  }
+}
+
+// void ParentConfig::print
+//
+//   Debugging function
+//
+void
+ParentConfig::print()
+{
+  ParentConfigParams *params = ParentConfig::acquire();
+
+  printf("Parent Selection Config\n");
+  printf("\tEnabled %d\tRetryTime %d\tParent DNS Only %d\n",
+         params->ParentEnable, params->ParentRetryTime, params->DNS_ParentOnly);
+  if (params->DefaultParent == NULL) {
+    printf("\tNo Default Parent\n");
+  } else {
+    printf("\tDefault Parent:\n");
+    params->DefaultParent->Print();
+  }
+  printf("  ");
+  params->ParentTable->Print();
+
+  ParentConfig::release(params);
+}
+
+bool
+ParentConfigParams::apiParentExists(HttpRequestData * rdata)
+{
+  return (rdata->api_info && rdata->api_info->parent_proxy_name != NULL && rdata->api_info->parent_proxy_port > 0);
+}
+
+bool
+ParentConfigParams::parentExists(HttpRequestData * rdata)
+{
+  ParentResult junk;
+
+  findParent(rdata, &junk);
+
+  if (junk.r == PARENT_SPECIFIED) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+void
+ParentConfigParams::findParent(HttpRequestData * rdata, ParentResult * result)
+{
+  P_table *tablePtr = ParentTable;
+  ParentRecord *defaultPtr = DefaultParent;
+  ParentRecord *rec;
+
+  ink_assert(result->r == PARENT_UNDEFINED);
+
+  // Check to see if we are enabled
+  if (ParentEnable == 0) {
+    result->r = PARENT_DIRECT;
+    return;
+  }
+  // Initialize the result structure
+  result->rec = NULL;
+  result->epoch = tablePtr;
+  result->line_number = 0xffffffff;
+  result->wrap_around = false;
+  // if this variabel is not set, we have problems: the code in
+  // FindParent relies on the value of start_parent and when it is not
+  // initialized, the code in FindParent can get into an infinite loop!
+  result->start_parent = 0;
+  result->last_parent = 0;
+
+  // Check to see if the parent was set through the
+  //   api
+  if (apiParentExists(rdata)) {
+    result->r = PARENT_SPECIFIED;
+    result->hostname = rdata->api_info->parent_proxy_name;
+    result->port = rdata->api_info->parent_proxy_port;
+    result->rec = extApiRecord;
+    result->epoch = NULL;
+    result->start_parent = 0;
+    result->last_parent = 0;
+
+    Debug("parent_select", "Result for %s was API set parent %s:%d", rdata->get_host(), result->hostname, result->port);
+  }
+
+  tablePtr->Match(rdata, result);
+  rec = result->rec;
+
+  if (rec == NULL) {
+    // No parents were found
+    //
+    // If there is a default parent, use it
+    if (defaultPtr != NULL) {
+      rec = result->rec = defaultPtr;
+    } else {
+      result->r = PARENT_DIRECT;
+      Debug("cdn", "Returning PARENT_DIRECT (no parents were found)");
+      return;
+    }
+  }
+  // Loop through the set of parents to see if any are
+  //   available
+  Debug("cdn", "Calling FindParent from findParent");
+
+  // Bug INKqa08251:
+  // If a parent proxy is set by the API,
+  // no need to call FindParent()
+  if (rec != extApiRecord)
+    rec->FindParent(true, result, rdata, this);
+
+  if (is_debug_tag_set("parent_select") || is_debug_tag_set("cdn")) {
+    switch (result->r) {
+    case PARENT_UNDEFINED:
+      Debug("cdn", "PARENT_UNDEFINED");
+      break;
+    case PARENT_FAIL:
+      Debug("cdn", "PARENT_FAIL");
+      break;
+    case PARENT_DIRECT:
+      Debug("cdn", "PARENT_DIRECT");
+      break;
+    case PARENT_SPECIFIED:
+      Debug("cdn", "PARENT_SPECIFIED");
+      break;
+    default:
+      // Handled here:
+      // PARENT_AGENT
+      break;
+    }
+
+    const char *host = rdata->get_host();
+
+    switch (result->r) {
+    case PARENT_UNDEFINED:
+    case PARENT_FAIL:
+    case PARENT_DIRECT:
+      Debug("parent_select", "Result for %s was %s", host, ParentResultStr[result->r]);
+      break;
+    case PARENT_SPECIFIED:
+      Debug("parent_select", "sizeof ParentResult = %zu", sizeof(ParentResult));
+      Debug("parent_select", "Result for %s was parent %s:%d", host, result->hostname, result->port);
+      break;
+    default:
+      // Handled here:
+      // PARENT_AGENT
+      break;
+    }
+  }
+}
+
+
+void
+ParentConfigParams::recordRetrySuccess(ParentResult * result)
+{
+  pRecord *pRec;
+
+  //  Make sure that we are being called back with with a
+  //   result structure with a parent that is being retried
+  ink_release_assert(result->retry == true);
+  ink_assert(result->r == PARENT_SPECIFIED);
+  if (result->r != PARENT_SPECIFIED) {
+    return;
+  }
+  // If we were set through the API we currently have not failover
+  //   so just return fail
+  if (result->rec == extApiRecord) {
+    ink_assert(0);
+    return;
+  }
+
+  ink_assert((int) (result->last_parent) < result->rec->num_parents);
+  pRec = result->rec->parents + result->last_parent;
+
+  ink_atomic_swap(&pRec->failedAt, (time_t)0);
+  int old_count = ink_atomic_swap(&pRec->failCount, 0);
+
+  if (old_count > 0) {
+    Note("http parent proxy %s:%d restored", pRec->hostname, pRec->port);
+  }
+}
+
+void
+ParentConfigParams::markParentDown(ParentResult * result)
+{
+  time_t now;
+  pRecord *pRec;
+  int new_fail_count = 0;
+
+  //  Make sure that we are being called back with with a
+  //   result structure with a parent
+  ink_assert(result->r == PARENT_SPECIFIED);
+  if (result->r != PARENT_SPECIFIED) {
+    return;
+  }
+  // If we were set through the API we currently have not failover
+  //   so just return fail
+  if (result->rec == extApiRecord) {
+    return;
+  }
+
+  ink_assert((int) (result->last_parent) < result->rec->num_parents);
+  pRec = result->rec->parents + result->last_parent;
+
+  // If the parent has already been marked down, just increment
+  //   the failure count.  If this is the first mark down on a
+  //   parent we need to both set the failure time and set
+  //   count to one.  It's possible for the count and time get out
+  //   sync due there being no locks.  Therefore the code should
+  //   handle this condition.  If this was the result of a retry, we
+  //   must update move the failedAt timestamp to now so that we continue
+  //   negative cache the parent
+  if (pRec->failedAt == 0 || result->retry == true) {
+    // Reread the current time.  We want this to be accurate since
+    //   it relates to how long the parent has been down.
+    now = time(NULL);
+
+    // Mark the parent as down
+    ink_atomic_swap(&pRec->failedAt, now);
+
+    // If this is clean mark down and not a failed retry, we
+    //   must set the count to reflect this
+    if (result->retry == false) {
+      new_fail_count = pRec->failCount = 1;
+    }
+
+    Debug("parent_select", "Parent %s marked as down %s:%d", (result->retry) ? "retry" : "initially", pRec->hostname, pRec->port);
+
+  } else {
+    int old_count = ink_atomic_increment(&pRec->failCount, 1);
+
+    Debug("parent_select", "Parent fail count increased to %d for %s:%d", old_count + 1, pRec->hostname, pRec->port);
+    new_fail_count = old_count + 1;
+  }
+
+  if (new_fail_count > 0 && new_fail_count == FailThreshold) {
+    Note("http parent proxy %s:%d marked down", pRec->hostname, pRec->port);
+  }
+}
+
+void
+ParentConfigParams::nextParent(HttpRequestData * rdata, ParentResult * result)
+{
+  P_table *tablePtr = ParentTable;
+
+  //  Make sure that we are being called back with a
+  //   result structure with a parent
+  ink_assert(result->r == PARENT_SPECIFIED);
+  if (result->r != PARENT_SPECIFIED) {
+    result->r = PARENT_FAIL;
+    return;
+  }
+  // If we were set through the API we currently have not failover
+  //   so just return fail
+  if (result->rec == extApiRecord) {
+    Debug("parent_select", "Retry result for %s was %s", rdata->get_host(), ParentResultStr[result->r]);
+    result->r = PARENT_FAIL;
+    return;
+  }
+  // The epoch pointer is a legacy from the time when the tables
+  //  would be swapped and deleted in the future.  I'm using the
+  //  pointer now to ensure that the ParentConfigParams structure
+  //  is properly used.  The table should never change out from
+  //  under the a http transaction
+  ink_release_assert(tablePtr == result->epoch);
+
+  // Find the next parent in the array
+  Debug("cdn", "Calling FindParent from nextParent");
+  result->rec->FindParent(false, result, rdata, this);
+
+  switch (result->r) {
+  case PARENT_UNDEFINED:
+    Debug("cdn", "PARENT_UNDEFINED");
+    break;
+  case PARENT_FAIL:
+    Debug("cdn", "PARENT_FAIL");
+    break;
+  case PARENT_DIRECT:
+    Debug("cdn", "PARENT_DIRECT");
+    break;
+  case PARENT_SPECIFIED:
+    Debug("cdn", "PARENT_SPECIFIED");
+    break;
+  default:
+    // Handled here:
+    // PARENT_AGENT
+    break;
+  }
+
+  if (is_debug_tag_set("parent_select")) {
+    const char *host = rdata->get_host();
+
+    switch (result->r) {
+    case PARENT_UNDEFINED:
+    case PARENT_FAIL:
+    case PARENT_DIRECT:
+      Debug("parent_select", "Retry result for %s was %s", host, ParentResultStr[result->r]);
+      break;
+    case PARENT_SPECIFIED:
+      Debug("parent_select", "Retry result for %s was parent %s:%d", host, result->hostname, result->port);
+      break;
+    default:
+      // Handled here:
+      // PARENT_AGENT
+      break;
+    }
+  }
+}
+
+//
+//   End API functions
+//
+
+void
+ParentRecord::FindParent(bool first_call, ParentResult * result, RequestData * rdata, ParentConfigParams * config)
+{
+  Debug("cdn", "Entering FindParent (the inner loop)");
+  int cur_index = 0;
+  bool parentUp = false;
+  bool parentRetry = false;
+  bool bypass_ok = (go_direct == true && config->DNS_ParentOnly == 0);
+
+  HttpRequestData *request_info = (HttpRequestData *) rdata;
+
+  ink_assert(num_parents > 0 || go_direct == true);
+
+  if (first_call == true) {
+    if (parents == NULL) {
+      // We should only get into this state if
+      //   if we are supposed to go dirrect
+      ink_assert(go_direct == true);
+      goto NO_PARENTS;
+    } else if (round_robin == true) {
+      cur_index = ink_atomic_increment((int32_t *) & rr_next, 1);
+      cur_index = result->start_parent = cur_index % num_parents;
+    } else {
+      switch (round_robin) {
+      case P_STRICT_ROUND_ROBIN:
+        cur_index = ink_atomic_increment((int32_t *) & rr_next, 1);
+        cur_index = cur_index % num_parents;
+        break;
+      case P_HASH_ROUND_ROBIN:
+        // INKqa12817 - make sure to convert to host byte order
+        // Why was it important to do host order here?  And does this have any
+        // impact with the transition to IPv6?  The IPv4 functionality is 
+        // preserved for now anyway as ats_ip_hash returns the 32-bit address in
+        // that case.
+        if (rdata->get_client_ip() != NULL) {
+            cur_index = ntohl(ats_ip_hash(rdata->get_client_ip())) % num_parents;
+        } else {
+            cur_index = 0;
+        }
+        break;
+      case P_NO_ROUND_ROBIN:
+        cur_index = result->start_parent = 0;
+        break;
+      default:
+        ink_release_assert(0);
+      }
+    }
+  } else {
+    // Move to next parent due to failure
+    cur_index = (result->last_parent + 1) % num_parents;
+
+    // Check to see if we have wrapped around
+    if ((unsigned int) cur_index == result->start_parent) {
+      // We've wrapped around so bypass if we can
+      if (bypass_ok == true) {
+        goto NO_PARENTS;
+      } else {
+        // Bypass disabled so keep trying, ignoring whether we think
+        //   a parent is down or not
+      FORCE_WRAP_AROUND:
+        result->wrap_around = true;
+      }
+    }
+  }
+
+  // Loop through the array of parent seeing if any are up or
+  //   should be retried
+  do {
+    // DNS ParentOnly inhibits bypassing the parent so always return that t
+    if ((parents[cur_index].failedAt == 0) || (parents[cur_index].failCount < config->FailThreshold)) {
+      Debug("parent_select", "config->FailThreshold = %d", config->FailThreshold);
+      Debug("parent_select", "Selecting a down parent due to little failCount"
+            "(faileAt: %u failCount: %d)", (unsigned)parents[cur_index].failedAt, parents[cur_index].failCount);
+      parentUp = true;
+    } else {
+      if ((result->wrap_around) || ((parents[cur_index].failedAt + config->ParentRetryTime) < request_info->xact_start)) {
+        Debug("parent_select", "Parent[%d].failedAt = %u, retry = %u,xact_start = %" PRId64 " but wrap = %d", cur_index,
+              (unsigned)parents[cur_index].failedAt, config->ParentRetryTime, (int64_t)request_info->xact_start, result->wrap_around);
+        // Reuse the parent
+        parentUp = true;
+        parentRetry = true;
+        Debug("parent_select", "Parent marked for retry %s:%d", parents[cur_index].hostname, parents[cur_index].port);
+
+      } else {
+        parentUp = false;
+      }
+    }
+
+    if (parentUp == true) {
+      result->r = PARENT_SPECIFIED;
+      result->hostname = parents[cur_index].hostname;
+      result->port = parents[cur_index].port;
+      result->last_parent = cur_index;
+      result->retry = parentRetry;
+      ink_assert(result->hostname != NULL);
+      ink_assert(result->port != 0);
+      Debug("parent_select", "Chosen parent = %s.%d", result->hostname, result->port);
+      return;
+    }
+
+    cur_index = (cur_index + 1) % num_parents;
+
+  } while ((unsigned int) cur_index != result->start_parent);
+
+  // We can't bypass so retry, taking any parent that we can
+  if (bypass_ok == false) {
+    goto FORCE_WRAP_AROUND;
+  }
+
+NO_PARENTS:
+
+  // Could not find a parent
+  if (this->go_direct == true) {
+    result->r = PARENT_DIRECT;
+  } else {
+    result->r = PARENT_FAIL;
+  }
+
+  result->hostname = NULL;
+  result->port = 0;
+}
+
+// const char* ParentRecord::ProcessParents(char* val)
+//
+//   Reads in the value of a "round-robin" or "order"
+//     directive and parses out the individual parents
+//     allocates and builds the this->parents array
+//
+//   Returns NULL on success and a static error string
+//     on failure
+//
+const char *
+ParentRecord::ProcessParents(char *val)
+{
+  Tokenizer pTok(",; \t\r");
+  int numTok;
+  const char *current;
+  int port;
+  char *tmp;
+  const char *errPtr;
+
+  if (parents != NULL) {
+    return "Can not specify more than one set of parents";
+  }
+
+  numTok = pTok.Initialize(val, SHARE_TOKS);
+
+  if (numTok == 0) {
+    return "No parents specified";
+  }
+  // Allocate the parents array
+  this->parents = (pRecord *)ats_malloc(sizeof(pRecord) * numTok);
+
+  // Loop through the set of parents specified
+  //
+  for (int i = 0; i < numTok; i++) {
+    current = pTok[i];
+
+    // Find the parent port
+    tmp = (char *) strchr(current, ':');
+
+    if (tmp == NULL) {
+      errPtr = "No parent port specified";
+      goto MERROR;
+    }
+    // Read the parent port
+    //coverity[secure_coding]
+    if (sscanf(tmp + 1, "%d", &port) != 1) {
+      errPtr = "Malformed parent port";
+      goto MERROR;
+    }
+    // Make sure that is no garbage beyond the parent
+    //   port
+    char *scan = tmp + 1;
+    for (; *scan != '\0' && ParseRules::is_digit(*scan); scan++);
+    for (; *scan != '\0' && ParseRules::is_wslfcr(*scan); scan++);
+    if (*scan != '\0') {
+      errPtr = "Garbage trailing entry or invalid separator";
+      goto MERROR;
+    }
+    // Check to make sure that the string will fit in the
+    //  pRecord
+    if (tmp - current > MAXDNAME) {
+      errPtr = "Parent hostname is too long";
+      goto MERROR;
+    } else if (tmp - current == 0) {
+      errPtr = "Parent string is emtpy";
+      goto MERROR;
+    }
+    // Update the pRecords
+    memcpy(this->parents[i].hostname, current, tmp - current);
+    this->parents[i].hostname[tmp - current] = '\0';
+    this->parents[i].port = port;
+    this->parents[i].failedAt = 0;
+    this->parents[i].scheme = scheme;
+  }
+
+  num_parents = numTok;
+  return NULL;
+
+MERROR:
+  ats_free(parents);
+  parents = NULL;
+
+  return errPtr;
+}
+
+// bool ParentRecord::DefaultInit(char* val)
+//
+//    Creates the record for a default parent proxy rule
+///     established by a config variable
+//
+//    matcher_line* line_info - contains the value of
+//      proxy.config.http.parent_proxies
+//
+//    Returns true on success and false on failure
+//
+bool
+ParentRecord::DefaultInit(char *val)
+{
+  const char *errPtr;
+  char *errBuf;
+  bool alarmAlready = false;
+
+  this->go_direct = true;
+  this->round_robin = P_NO_ROUND_ROBIN;
+  this->scheme = NULL;
+  errPtr = ProcessParents(val);
+
+  if (errPtr != NULL) {
+    errBuf = (char *)ats_malloc(1024);
+    snprintf(errBuf, 1024, "%s %s for default parent proxy", modulePrefix, errPtr);
+    SignalError(errBuf, alarmAlready);
+    ats_free(errBuf);
+    return false;
+  } else {
+    return true;
+  }
+}
+
+
+// char* ParentRecord::Init(matcher_line* line_info)
+//
+//    matcher_line* line_info - contains parsed label/value
+//      pairs of the current cache.config line
+//
+//    Returns NULL if everything is OK
+//      Otherwise, returns an error string that the caller MUST
+//        DEALLOCATE with ats_free()
+//
+char *
+ParentRecord::Init(matcher_line * line_info)
+{
+  const char *errPtr = NULL;
+  char *errBuf;
+  const int errBufLen = 1024;
+  const char *tmp;
+  char *label;
+  char *val;
+  bool used = false;
+
+  this->line_num = line_info->line_num;
+  this->scheme = NULL;
+
+  for (int i = 0; i < MATCHER_MAX_TOKENS; i++) {
+    used = false;
+    label = line_info->line[0][i];
+    val = line_info->line[1][i];
+
+    if (label == NULL) {
+      continue;
+    }
+
+    if (strcasecmp(label, "round_robin") == 0) {
+      if (strcasecmp(val, "true") == 0) {
+        round_robin = P_HASH_ROUND_ROBIN;
+      } else if (strcasecmp(val, "strict") == 0) {
+        round_robin = P_STRICT_ROUND_ROBIN;
+      } else if (strcasecmp(val, "false") == 0) {
+        round_robin = P_NO_ROUND_ROBIN;
+      } else {
+        round_robin = P_NO_ROUND_ROBIN;
+        errPtr = "invalid argument to round_robin directive";
+      }
+      used = true;
+    } else if (strcasecmp(label, "parent") == 0) {
+      errPtr = ProcessParents(val);
+      used = true;
+    } else if (strcasecmp(label, "go_direct") == 0) {
+      if (strcasecmp(val, "false") == 0) {
+        go_direct = false;
+      } else if (strcasecmp(val, "true") != 0) {
+        errPtr = "invalid argument to go_direct directive";
+      } else {
+        go_direct = true;
+      }
+      used = true;
+    }
+    // Report errors generated by ProcessParents();
+    if (errPtr != NULL) {
+      errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+      snprintf(errBuf, errBufLen, "%s %s at line %d", modulePrefix, errPtr, line_num);
+      return errBuf;
+    }
+
+    if (used == true) {
+      // Consume the label/value pair we used
+      line_info->line[0][i] = NULL;
+      line_info->num_el--;
+    }
+  }
+
+  if (this->parents == NULL && go_direct == false) {
+    errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+    snprintf(errBuf, errBufLen, "%s No parent specified in parent.config at line %d", modulePrefix, line_num);
+    return errBuf;
+  }
+  // Process any modifiers to the directive, if they exist
+  if (line_info->num_el > 0) {
+    tmp = ProcessModifiers(line_info);
+
+    if (tmp != NULL) {
+      errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+      snprintf(errBuf, errBufLen, "%s %s at line %d in parent.config", modulePrefix, tmp, line_num);
+      return errBuf;
+    }
+    // record SCHEME modifier if present.
+    // NULL if not present
+    this->scheme = this->getSchemeModText();
+    if (this->scheme != NULL) {
+      // update parent entries' schemes
+      for (int j = 0; j < num_parents; j++) {
+        this->parents[j].scheme = this->scheme;
+      }
+    }
+  }
+
+  return NULL;
+}
+
+// void ParentRecord::UpdateMatch(ParentResult* result, RequestData* rdata);
+//
+//    Updates the record ptr in result if the this element
+//     appears later in the file
+//
+void
+ParentRecord::UpdateMatch(ParentResult * result, RequestData * rdata)
+{
+  if (this->CheckForMatch((HttpRequestData *) rdata, result->line_number) == true) {
+    result->rec = this;
+    result->line_number = this->line_num;
+
+    Debug("parent_select", "Matched with %p parent node from line %d", this, this->line_num);
+  }
+}
+
+ParentRecord::~ParentRecord()
+{
+  ats_free(parents);
+}
+
+void
+ParentRecord::Print()
+{
+  printf("\t\t");
+  for (int i = 0; i < num_parents; i++) {
+    printf(" %s:%d ", parents[i].hostname, parents[i].port);
+  }
+  printf(" rr=%s direct=%s\n", ParentRRStr[round_robin], (go_direct == true) ? "true" : "false");
+}
+
+// ParentRecord* createDefaultParent(char* val)
+//
+//  Atttemtps to allocate and init new ParentRecord
+//    for a default parent
+//
+//  Returns a pointer to the new record on success
+//   and NULL on failure
+//
+ParentRecord *
+createDefaultParent(char *val)
+{
+  ParentRecord *newRec;
+
+  if (val == NULL || *val == '\0') {
+    return NULL;
+  }
+
+  newRec = new ParentRecord;
+  if (newRec->DefaultInit(val) == true) {
+    return newRec;
+  } else {
+    delete newRec;
+    return NULL;
+  }
+}
+
+//
+//ParentConfig equivalent functions for SocksServerConfig
+//
+
+int SocksServerConfig::m_id = 0;
+static Ptr<ProxyMutex> socks_server_reconfig_mutex;
+void
+SocksServerConfig::startup()
+{
+  socks_server_reconfig_mutex = new_ProxyMutex();
+
+  // Load the initial configuration
+  reconfigure();
+
+  /* Handle update functions later. Socks does not yet support config update */
+}
+
+static int
+setup_socks_servers(ParentRecord * rec_arr, int len)
+{
+  /* This changes hostnames into ip addresses and sets go_direct to false */
+  for (int j = 0; j < len; j++) {
+    rec_arr[j].go_direct = false;
+
+    pRecord *pr = rec_arr[j].parents;
+    int n_parents = rec_arr[j].num_parents;
+
+    for (int i = 0; i < n_parents; i++) {
+      IpEndpoint ip4, ip6;
+      if (0 == ats_ip_getbestaddrinfo(pr[i].hostname, &ip4, &ip6)) {
+        IpEndpoint* ip = ats_is_ip6(&ip6) ? &ip6 : &ip4;
+        ats_ip_ntop(ip, pr[i].hostname, MAXDNAME+1);
+      } else {
+        Warning("Could not resolve socks server name \"%s\". " "Please correct it", pr[i].hostname);
+        snprintf(pr[i].hostname, MAXDNAME+1, "255.255.255.255");
+      }
+    }
+  }
+
+  return 0;
+}
+
+
+void
+SocksServerConfig::reconfigure()
+{
+  char *default_val = NULL;
+  int retry_time = 30;
+  int fail_threshold;
+
+  ParentConfigParams *params;
+  params = new ParentConfigParams;
+
+  // Allocate parent table
+  params->ParentTable = new P_table("proxy.config.socks.socks_config_file", "[Socks Server Selection]",
+                                    &socks_server_tags);
+
+  // Handle default parent
+  PARENT_ReadConfigStringAlloc(default_val, "proxy.config.socks.default_servers");
+  params->DefaultParent = createDefaultParent(default_val);
+  ats_free(default_val);
+
+  if (params->DefaultParent)
+    setup_socks_servers(params->DefaultParent, 1);
+  if (params->ParentTable->ipMatch)
+    setup_socks_servers(params->ParentTable->ipMatch->data_array, params->ParentTable->ipMatch->array_len);
+
+  // Handle parent timeout
+  PARENT_ReadConfigInteger(retry_time, "proxy.config.socks.server_retry_time");
+  params->ParentRetryTime = retry_time;
+
+  // Handle parent enable
+  // enable is always true for use. We will come here only if socks is enabled
+  params->ParentEnable = 1;
+
+  // Handle the fail threshold
+  PARENT_ReadConfigInteger(fail_threshold, "proxy.config.socks.server_fail_threshold");
+  params->FailThreshold = fail_threshold;
+
+  // Handle dns parent only
+  //PARENT_ReadConfigInteger(dns_parent_only, dns_parent_only_var);
+  params->DNS_ParentOnly = 0;
+
+  m_id = configProcessor.set(m_id, params);
+
+  if (is_debug_tag_set("parent_config")) {
+    SocksServerConfig::print();
+  }
+}
+
+void
+SocksServerConfig::print()
+{
+  ParentConfigParams *params = SocksServerConfig::acquire();
+
+  printf("Parent Selection Config for Socks Server\n");
+  printf("\tEnabled %d\tRetryTime %d\tParent DNS Only %d\n",
+         params->ParentEnable, params->ParentRetryTime, params->DNS_ParentOnly);
+  if (params->DefaultParent == NULL) {
+    printf("\tNo Default Parent\n");
+  } else {
+    printf("\tDefault Parent:\n");
+    params->DefaultParent->Print();
+  }
+  printf("  ");
+  params->ParentTable->Print();
+
+  SocksServerConfig::release(params);
+}
+
+#define TEST_FAIL(str) { \
+  printf("%d: %s\n", test_id,str);\
+  err= REGRESSION_TEST_FAILED;\
+}
+
+void
+request_to_data(HttpRequestData * req, sockaddr const* srcip, sockaddr const* dstip, const char *str)
+{
+  HTTPParser parser;
+
+  ink_zero(req->src_ip);
+  ats_ip_copy(&req->src_ip.sa, srcip);
+  ink_zero(req->dest_ip);
+  ats_ip_copy(&req->dest_ip.sa, dstip);
+
+  req->hdr = new HTTPHdr;
+
+  http_parser_init(&parser);
+
+  req->hdr->parse_req(&parser, &str, str + strlen(str), true);
+
+  http_parser_clear(&parser);
+}
+
+
+static int passes;
+static int fails;
+
+// Parenting Tests
+EXCLUSIVE_REGRESSION_TEST(PARENTSELECTION) (RegressionTest * /* t ATS_UNUSED */,
+                                            int /* intensity_level ATS_UNUSED */, int *pstatus)
+{
+  // first, set everything up
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+  ParentConfig config;
+  ParentConfigParams *params = new ParentConfigParams();
+  params->FailThreshold = 1;
+  params->ParentRetryTime = 5;
+  passes = fails = 0;
+  config.startup();
+  params->ParentEnable = true;
+  char tbl[2048];
+#define T(x) ink_strlcat(tbl,x, sizeof(tbl));
+#define REBUILD params->ParentTable = new P_table("", "ParentSelection Unit Test Table", &http_dest_tags, ALLOW_HOST_TABLE | ALLOW_REGEX_TABLE | ALLOW_URL_TABLE | ALLOW_IP_TABLE | DONT_BUILD_TABLE); params->ParentTable->BuildTableFromString(tbl);
+  HttpRequestData *request = NULL;
+  ParentResult *result = NULL;
+#define REINIT delete request; delete result; request = new HttpRequestData(); result = new ParentResult(); if (!result || !request) { (void)printf("Allocation failed\n"); return; }
+#define ST(x) printf ("*** TEST %d *** STARTING ***\n", x);
+#define RE(x,y) if (x) { printf("*** TEST %d *** PASSED ***\n", y); passes ++; } else { printf("*** TEST %d *** FAILED *** FAILED *** FAILED ***\n", y); fails++; }
+#define FP params->findParent(request, result);
+
+  // Test 1
+  tbl[0] = '\0';
+  ST(1)
+    T("dest_domain=. parent=red:37412,orange:37412,yellow:37412 round_robin=strict\n")
+  REBUILD int c, red = 0, orange = 0, yellow = 0;
+  for (c = 0; c < 21; c++) {
+    REINIT br(request, "fruit_basket.net");
+    FP red += verify(result, PARENT_SPECIFIED, "red", 37412);
+    orange += verify(result, PARENT_SPECIFIED, "orange", 37412);
+    yellow += verify(result, PARENT_SPECIFIED, "yellow", 37412);
+  }
+  RE(((red == 7) && (orange == 7) && (yellow == 7)), 1)
+    // Test 2
+    ST(2)
+    tbl[0] = '\0';
+  T("dest_domain=. parent=green:4325,blue:4325,indigo:4325,violet:4325 round_robin=false\n")
+  REBUILD int g = 0, b = 0, i = 0, v = 0;
+  for (c = 0; c < 17; c++) {
+    REINIT br(request, "fruit_basket.net");
+    FP g += verify(result, PARENT_SPECIFIED, "green", 4325);
+    b += verify(result, PARENT_SPECIFIED, "blue", 4325);
+    i += verify(result, PARENT_SPECIFIED, "indigo", 4325);
+    v += verify(result, PARENT_SPECIFIED, "violet", 4325);
+  }
+  RE((((g == 17) && !b && !i && !v) || (!g && (b == 17) && !i && !v) || (!g && !b && (i == 17) && !v) ||
+      (!g && !b && !i && (v == 17))), 2)
+    // Test 3 - 6 Parenting Table
+    tbl[0] = '\0';
+# define TEST_IP4_ADDR "209.131.62.14"
+# define TEST_IP6_ADDR "BEEF:DEAD:ABBA:CAFE:1337:1E1F:5EED:C0FF"
+  T("dest_ip=" TEST_IP4_ADDR " parent=cat:37,dog:24 round_robin=strict\n")  /* L1 */
+  T("dest_ip=" TEST_IP6_ADDR " parent=zwoop:37,jMCg:24 round_robin=strict\n")  /* L1 */
+    T("dest_host=www.pilot.net parent=pilot_net:80\n")  /* L2 */
+    T("url_regex=snoopy parent=odie:80,garfield:80 round_robin=true\n") /* L3 */
+    T("dest_domain=i.am parent=amy:80,katie:80,carissa:771 round_robin=false\n")        /* L4 */
+    T("dest_domain=microsoft.net time=03:00-22:10 parent=zoo.net:341\n")        /* L5 */
+    T("dest_domain=microsoft.net time=0:00-02:59 parent=zoo.net:347\n") /* L6 */
+    T("dest_domain=microsoft.net time=22:11-23:59 parent=zoo.edu:111\n")        /* L7 */
+    T("dest_domain=imac.net port=819 parent=genie:80 round_robin=strict\n")     /* L8 */
+    T("dest_ip=172.34.61.211 port=3142 parent=orangina:80 go_direct=false\n")   /* L9 */
+    T("url_regex=miffy prefix=furry/rabbit parent=nintje:80 go_direct=false\n") /* L10 */
+    T("url_regex=kitty suffix=tif parent=hello:80 round_robin=strict go_direct=false\n")        /* L11 */
+    T("url_regex=cyclops method=get parent=turkey:80\n")        /* L12 */
+    T("url_regex=cyclops method=post parent=club:80\n") /* L13 */
+    T("url_regex=cyclops method=put parent=sandwich:80\n")      /* L14 */
+    T("url_regex=cyclops method=trace parent=mayo:80\n")        /* L15 */
+    T("dest_host=pluto scheme=HTTP parent=strategy:80\n")       /* L16 */
+    REBUILD
+    // Test 3
+    IpEndpoint ip;
+    ats_ip_pton(TEST_IP4_ADDR, &ip.sa);
+    ST(3) REINIT br(request, "numeric_host", &ip.sa);
+  FP RE(verify(result, PARENT_SPECIFIED, "cat", 37) + verify(result, PARENT_SPECIFIED, "dog", 24), 3)
+    ats_ip_pton(TEST_IP6_ADDR, &ip.sa);
+    ST(4) REINIT br(request, "numeric_host", &ip.sa);
+  FP RE(verify(result, PARENT_SPECIFIED, "zwoop", 37) + verify(result, PARENT_SPECIFIED, "jMCg", 24), 4)
+    // Test 5
+    ST(5) REINIT br(request, "www.pilot.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "pilot_net", 80), 5)
+    // Test 6
+    ST(6) REINIT br(request, "www.snoopy.net");
+  const char *snoopy_dog = "http://www.snoopy.com/";
+  request->hdr->url_set(snoopy_dog, strlen(snoopy_dog));
+  FP RE(verify(result, PARENT_SPECIFIED, "odie", 80) + verify(result, PARENT_SPECIFIED, "garfield", 80), 5)
+    // Test 7
+    ST(7) REINIT br(request, "a.rabbit.i.am");
+  FP RE(verify(result, PARENT_SPECIFIED, "amy", 80) +
+        verify(result, PARENT_SPECIFIED, "katie", 80) + verify(result, PARENT_SPECIFIED, "carissa", 771), 6)
+    // Test 6+ BUGBUG needs to be fixed
+//   ST(7) REINIT
+//   br(request, "www.microsoft.net");
+//   FP RE( verify(result,PARENT_SPECIFIED,"zoo.net",341) +
+//       verify(result,PARENT_SPECIFIED,"zoo.net",347) +
+//       verify(result,PARENT_SPECIFIED,"zoo.edu",111) ,7)
+    // Test 6++ BUGBUG needs to be fixed
+//   ST(7) REINIT
+//   br(request, "snow.imac.net:2020");
+//   FP RE(verify(result,PARENT_DIRECT,0,0),7)
+    // Test 6+++ BUGBUG needs to be fixed
+//   ST(8) REINIT
+//   br(request, "snow.imac.net:819");
+//   URL* u = new URL();
+//   char* r = "http://snow.imac.net:819/";
+//   u->create(0);
+//   u->parse(r,strlen(r));
+//   u->port_set(819);
+//   request->hdr->url_set(u);
+//   ink_assert(request->hdr->url_get()->port_get() == 819);
+//   printf("url: %s\n",request->hdr->url_get()->string_get(0));
+//   FP RE(verify(result,PARENT_SPECIFIED,"genie",80),8)
+    // Test 7 - N Parent Table
+    tbl[0] = '\0';
+  T("dest_domain=rabbit.net parent=fuzzy:80,fluffy:80,furry:80,frisky:80 round_robin=strict go_direct=true\n")
+    REBUILD
+    // Test 8
+    ST(8) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fuzzy", 80), 7)
+    params->markParentDown(result);
+
+  // Test 9
+  ST(9) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 8)
+    // Test 10
+    ST(10) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "furry", 80), 9)
+    // Test 11
+    ST(11) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "frisky", 80), 10)
+    // restart the loop
+    // Test 12
+    ST(12) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 11)
+    // Test 13
+    ST(13) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 12)
+    // Test 14
+    ST(14) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "furry", 80), 13)
+    // Test 15
+    ST(15) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "frisky", 80), 14)
+    params->markParentDown(result);
+
+  // restart the loop
+
+  // Test 16
+  ST(16) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 15)
+    // Test 17
+    ST(17) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 16)
+    // Test 18
+    ST(18) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "furry", 80), 17)
+    // Test 19
+    ST(19) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 18)
+    // restart the loop
+    // Test 20
+    ST(20) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 19)
+    // Test 21
+    ST(21) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), 20)
+    // Test 22
+    ST(22) REINIT br(request, "i.am.rabbit.net");
+  FP RE(verify(result, PARENT_SPECIFIED, "furry", 80), 21)
+    params->markParentDown(result);
+
+  // Test 23 - 32
+  for (i = 23; i < 33; i++) {
+    ST(i) REINIT br(request, "i.am.rabbit.net");
+    FP RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), i)
+  }
+
+  params->markParentDown(result);       // now they're all down
+
+  // Test 33 - 132
+  for (i = 33; i < 133; i++) {
+    ST(i) REINIT br(request, "i.am.rabbit.net");
+    FP RE(verify(result, PARENT_DIRECT, 0, 0), i)
+  }
+
+  // sleep(5); // parents should come back up; they don't
+  sleep(params->ParentRetryTime + 1);
+
+  // Fix: The following tests failed because
+  // br() should set xact_start correctly instead of 0.
+
+  // Test 133 - 172
+  for (i = 133; i < 173; i++) {
+    ST(i) REINIT br(request, "i.am.rabbit.net");
+    FP sleep(1);
+    switch (i % 4) {
+    case 0:
+      RE(verify(result, PARENT_SPECIFIED, "fuzzy", 80), i) break;
+    case 1:
+      RE(verify(result, PARENT_SPECIFIED, "fluffy", 80), i) break;
+    case 2:
+      RE(verify(result, PARENT_SPECIFIED, "furry", 80), i) break;
+    case 3:
+      RE(verify(result, PARENT_SPECIFIED, "frisky", 80), i) break;
+    default:
+      ink_assert(0);
+    }
+  }
+  delete request;
+  delete result;
+
+  printf("Tests Passed: %d\nTests Failed: %d\n", passes, fails);
+  *pstatus = (!fails ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+}
+
+// verify returns 1 iff the test passes
+int
+verify(ParentResult * r, ParentResultType e, const char *h, int p)
+{
+  if (is_debug_tag_set("parent_select"))
+    show_result(r);
+  return (r->r != e) ? 0 : ((e != PARENT_SPECIFIED) ? 1 : (strcmp(r->hostname, h) ? 0 : ((r->port == p) ? 1 : 0)));
+}
+
+// br creates an HttpRequestData object
+void
+br(HttpRequestData * h, const char *os_hostname, sockaddr const* dest_ip)
+{
+  h->hdr = new HTTPHdr();
+  h->hdr->create(HTTP_TYPE_REQUEST);
+  h->hostname_str = (char *)ats_strdup(os_hostname);
+  h->xact_start = time(NULL);
+  ink_zero(h->src_ip);
+  ink_zero(h->dest_ip);
+  ats_ip_copy(&h->dest_ip.sa, dest_ip);
+  h->incoming_port = 80;
+  h->api_info = new _HttpApiInfo();
+}
+
+// show_result prints out the ParentResult information
+void
+show_result(ParentResult * p)
+{
+  switch (p->r) {
+  case PARENT_UNDEFINED:
+    printf("result is PARENT_UNDEFINED\n");
+    break;
+  case PARENT_DIRECT:
+    printf("result is PARENT_DIRECT\n");
+    break;
+  case PARENT_SPECIFIED:
+    printf("result is PARENT_SPECIFIED\n");
+    printf("hostname is %s\n", p->hostname);
+    printf("port is %d\n", p->port);
+    break;
+  case PARENT_FAIL:
+    printf("result is PARENT_FAIL\n");
+    break;
+  default:
+    // Handled here:
+    // PARENT_AGENT
+    break;
+  }
+}
diff --git a/proxy/ParentSelection.h b/proxy/ParentSelection.h
new file mode 100644
index 00000000..0a4dc77d
--- /dev/null
+++ b/proxy/ParentSelection.h
@@ -0,0 +1,239 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  ParentSelection.h - Interface to Parent Selection System
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _PARENT_SELECTION_H_
+#define _PARENT_SELECTION_H_
+
+#include "Main.h"
+#include "ProxyConfig.h"
+#include "ControlBase.h"
+#include "ControlMatcher.h"
+
+#include "ink_apidefs.h"
+
+#include "P_RecProcess.h"
+
+struct RequestData;
+
+struct matcher_line;
+struct ParentResult;
+class ParentRecord;
+
+enum ParentResultType
+{
+  PARENT_UNDEFINED, PARENT_DIRECT,
+  PARENT_SPECIFIED, PARENT_AGENT, PARENT_FAIL
+};
+
+typedef ControlMatcher<ParentRecord, ParentResult> P_table;
+
+//
+// API to outside world
+//
+struct ParentResult
+{
+  ParentResult()
+    : r(PARENT_UNDEFINED), hostname(NULL), port(0), line_number(0), epoch(NULL), rec(NULL),
+      last_parent(0), start_parent(0), wrap_around(false), retry(false)
+  { };
+
+  // For outside consumption
+  ParentResultType r;
+  const char *hostname;
+  int port;
+
+  // Internal use only
+  //   Not to be modified by HTTP
+  int line_number;
+  P_table *epoch;               // A pointer to the table used.
+  ParentRecord *rec;
+  uint32_t last_parent;
+  uint32_t start_parent;
+  bool wrap_around;
+  bool retry;
+};
+
+class HttpRequestData;
+
+struct ParentConfigParams:public ConfigInfo
+{
+  ParentConfigParams();
+  ~ParentConfigParams();
+
+  // void findParent(RequestData* rdata, ParentResult* result)
+  //
+  //   Does initial parent lookup
+  //
+  inkcoreapi void findParent(HttpRequestData *rdata, ParentResult *result);
+
+  // void markParentDown(ParentResult* rsult)
+  //
+  //    Marks the parent pointed to by result as down
+  //
+  inkcoreapi void markParentDown(ParentResult *result);
+
+  // void recordRetrySuccess
+  //
+  //    After a successful retry, http calls this function
+  //      to clear the bits indicating the parent is down
+  //
+  void recordRetrySuccess(ParentResult *result);
+
+  // void nextParent(RequestData* rdata, ParentResult* result);
+  //
+  //    Marks the parent pointed to by result as down and attempts
+  //      to find the next parent
+  //
+  inkcoreapi void nextParent(HttpRequestData *rdata, ParentResult *result);
+
+  // bool parentExists(HttpRequestData* rdata)
+  //
+  //   Returns true if there is a parent matching the request data and
+  //   false otherwise
+  bool parentExists(HttpRequestData *rdata);
+
+  // bool apiParentExists(HttpRequestData* rdata)
+  //
+  //   Retures true if a parent has been set through the api
+  bool apiParentExists(HttpRequestData *rdata);
+
+  P_table *ParentTable;
+  ParentRecord *DefaultParent;
+  int32_t ParentRetryTime;
+  int32_t ParentEnable;
+  int32_t FailThreshold;
+  int32_t DNS_ParentOnly;
+};
+
+struct ParentConfig
+{
+public:
+  static void startup();
+  static void reconfigure();
+  static void print();
+
+  inkcoreapi static ParentConfigParams *acquire() { return (ParentConfigParams *) configProcessor.get(ParentConfig::m_id); }
+  inkcoreapi static void release(ParentConfigParams *params) { configProcessor.release(ParentConfig::m_id, params); }
+
+
+  static int m_id;
+};
+//
+// End API to outside world
+//
+
+
+// struct pRecord
+//
+//    A record for an invidual parent
+//
+struct pRecord
+{
+  char hostname[MAXDNAME + 1];
+  int port;
+  time_t failedAt;
+  int failCount;
+  int32_t upAt;
+  const char *scheme;           // for which parent matches (if any)
+};
+
+enum ParentRR_t
+{
+  P_NO_ROUND_ROBIN = 0,
+  P_STRICT_ROUND_ROBIN,
+  P_HASH_ROUND_ROBIN
+};
+
+// class ParentRecord : public ControlBase
+//
+//   A record for a configuration line in the parent.config
+//    file
+//
+class ParentRecord: public ControlBase
+{
+public:
+  ParentRecord()
+    : parents(NULL), num_parents(0), round_robin(P_NO_ROUND_ROBIN), rr_next(0), go_direct(true)
+  { }
+
+  ~ParentRecord();
+
+  char *Init(matcher_line *line_info);
+  bool DefaultInit(char *val);
+  void UpdateMatch(ParentResult *result, RequestData *rdata);
+  void FindParent(bool firstCall, ParentResult *result, RequestData *rdata, ParentConfigParams *config);
+  void Print();
+  pRecord *parents;
+  int num_parents;
+
+  bool bypass_ok() const { return go_direct; }
+
+  const char *scheme;
+  //private:
+  const char *ProcessParents(char *val);
+  ParentRR_t round_robin;
+  volatile uint32_t rr_next;
+  bool go_direct;
+};
+
+// Helper Functions
+ParentRecord *createDefaultParent(char *val);
+void reloadDefaultParent(char *val);
+void reloadParentFile();
+int parentSelection_CB(const char *name, RecDataT data_type, RecData data, void *cookie);
+
+// Unit Test Functions
+void show_result(ParentResult *aParentResult);
+void br(HttpRequestData *h, const char *os_hostname, sockaddr const* dest_ip = NULL);       // short for build request
+int verify(ParentResult *r, ParentResultType e, const char *h, int p);
+
+/*
+  For supporting multiple Socks servers, we essentially use the
+  ParentSelection infrastructure. Only the initialization is different.
+  If needed, we will have to implement most of the functions in
+  ParentSection.cc for Socks as well. For right now we will just use
+  ParentSelection
+
+  All the members in ParentConfig are static. Right now
+  we will duplicate the code for these static functions.
+*/
+struct SocksServerConfig
+{
+  static void startup();
+  static void reconfigure();
+  static void print();
+
+  static ParentConfigParams *acquire() { return (ParentConfigParams *) configProcessor.get(SocksServerConfig::m_id); }
+  static void release(ParentConfigParams *params) { configProcessor.release(SocksServerConfig::m_id, params); }
+
+  static int m_id;
+};
+
+#endif
diff --git a/proxy/Plugin.cc b/proxy/Plugin.cc
new file mode 100644
index 00000000..0d315b63
--- /dev/null
+++ b/proxy/Plugin.cc
@@ -0,0 +1,296 @@
+/** @file
+
+  Plugin init
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+// XXX: HP-UX ??? Not part of configure supported hosts
+#if defined(hpux)
+#include <dl.h>
+#endif
+#include "ink_platform.h"
+#include "ink_file.h"
+#include "Compatability.h"
+#include "ParseRules.h"
+#include "I_RecCore.h"
+#include "I_Layout.h"
+#include "InkAPIInternal.h"
+#include "Main.h"
+#include "Plugin.h"
+#include "ink_cap.h"
+
+// HPUX:
+//   LD_SHAREDCMD=ld -b
+// SGI:
+//   LD_SHAREDCMD=ld -shared
+// OSF:
+//   LD_SHAREDCMD=ld -shared -all -expect_unresolved "*"
+// Solaris:
+//   LD_SHAREDCMD=ld -G
+
+
+static const char *plugin_dir = ".";
+
+typedef void (*init_func_t) (int argc, char *argv[]);
+
+// Plugin registration vars
+//
+//    plugin_reg_list has an entry for each plugin
+//      we've successfully been able to load
+//    plugin_reg_current is used to associate the
+//      plugin we're in the process of loading with
+//      it struct.  We need this global pointer since
+//      the API doesn't have any plugin context.  Init
+//      is single threaded so we can get away with the
+//      global pointer
+//
+DLL<PluginRegInfo> plugin_reg_list;
+PluginRegInfo *plugin_reg_current = NULL;
+
+PluginRegInfo::PluginRegInfo()
+  : plugin_registered(false), plugin_path(NULL), sdk_version(PLUGIN_SDK_VERSION_UNKNOWN),
+    plugin_name(NULL), vendor_name(NULL), support_email(NULL)
+{ }
+
+static void *
+dll_open(const char *path)
+{
+  return (void *) dlopen(path, RTLD_NOW);
+}
+
+static void *
+dll_findsym(void *dlp, const char *name)
+{
+  return (void *) dlsym(dlp, name);
+}
+
+static char *
+dll_error(void * /* dlp ATS_UNUSED */)
+{
+  return (char *) dlerror();
+}
+
+static void
+plugin_load(int argc, char *argv[])
+{
+  char path[PATH_NAME_MAX + 1];
+  void *handle;
+  init_func_t init;
+  PluginRegInfo *plugin_reg_temp;
+
+  if (argc < 1) {
+    return;
+  }
+  ink_filepath_make(path, sizeof(path), plugin_dir, argv[0]);
+
+  Note("loading plugin '%s'", path);
+
+  plugin_reg_temp = plugin_reg_list.head;
+  while (plugin_reg_temp) {
+    if (strcmp(plugin_reg_temp->plugin_path, path) == 0) {
+      Warning("multiple loading of plugin %s", path);
+      break;
+    }
+    plugin_reg_temp = (plugin_reg_temp->link).next;
+  }
+  // elevate the access to read files as root if compiled with capabilities, if not
+  // change the effective user to root
+  {
+    uint32_t elevate_access = 0;
+    REC_ReadConfigInteger(elevate_access, "proxy.config.plugin.load_elevated");
+    ElevateAccess access(elevate_access != 0);
+
+    handle = dll_open(path);
+    if (!handle) {
+      Fatal("unable to load '%s': %s", path, dll_error(handle));
+    }
+
+    // Allocate a new registration structure for the
+    //    plugin we're starting up
+    ink_assert(plugin_reg_current == NULL);
+    plugin_reg_current = new PluginRegInfo;
+    plugin_reg_current->plugin_path = ats_strdup(path);
+
+    init = (init_func_t) dll_findsym(handle, "TSPluginInit");
+    if (!init) {
+      Fatal("unable to find TSPluginInit function '%s': %s", path, dll_error(handle));
+    }
+
+    init(argc, argv);
+  } // done elevating access
+
+  plugin_reg_list.push(plugin_reg_current);
+  plugin_reg_current = NULL;
+}
+
+static char *
+plugin_expand(char *arg)
+{
+  RecDataT data_type;
+  char *str = NULL;
+
+  if (*arg != '$') {
+    return (char *) NULL;
+  }
+  // skip the $ character
+  arg += 1;
+
+  if (RecGetRecordDataType(arg, &data_type) != REC_ERR_OKAY) {
+    goto not_found;
+  }
+
+  switch (data_type) {
+  case RECD_STRING:
+    {
+      RecString str_val;
+      if (RecGetRecordString_Xmalloc(arg, &str_val) != REC_ERR_OKAY) {
+        goto not_found;
+      }
+      return (char *) str_val;
+      break;
+    }
+  case RECD_FLOAT:
+    {
+      RecFloat float_val;
+      if (RecGetRecordFloat(arg, &float_val) != REC_ERR_OKAY) {
+        goto not_found;
+      }
+      str = (char *)ats_malloc(128);
+      snprintf(str, 128, "%f", (float) float_val);
+      return str;
+      break;
+    }
+  case RECD_INT:
+    {
+      RecInt int_val;
+      if (RecGetRecordInt(arg, &int_val) != REC_ERR_OKAY) {
+        goto not_found;
+      }
+      str = (char *)ats_malloc(128);
+      snprintf(str, 128, "%ld", (long int) int_val);
+      return str;
+      break;
+    }
+  case RECD_COUNTER:
+    {
+      RecCounter count_val;
+      if (RecGetRecordCounter(arg, &count_val) != REC_ERR_OKAY) {
+        goto not_found;
+      }
+      str = (char *)ats_malloc(128);
+      snprintf(str, 128, "%ld", (long int) count_val);
+      return str;
+      break;
+    }
+  default:
+    goto not_found;
+    break;
+  }
+
+
+not_found:
+  Warning("plugin.config: unable to find parameter %s", arg);
+  return NULL;
+}
+
+void
+plugin_init(void)
+{
+  char path[PATH_NAME_MAX + 1];
+  char line[1024], *p;
+  char *argv[64];
+  char *vars[64];
+  int argc;
+  int fd;
+  int i;
+  static bool INIT_ONCE = true;
+
+  if (INIT_ONCE) {
+    api_init();
+    plugin_dir = TSPluginDirGet();
+    INIT_ONCE = false;
+  }
+
+  Layout::get()->relative_to(path, sizeof(path), Layout::get()->sysconfdir, "plugin.config");
+  fd = open(path, O_RDONLY);
+  if (fd < 0) {
+    Warning("unable to open plugin config file '%s': %d, %s", path, errno, strerror(errno));
+    return;
+  }
+
+  while (ink_file_fd_readline(fd, sizeof(line) - 1, line) > 0) {
+    argc = 0;
+    p = line;
+
+    // strip leading white space and test for comment or blank line
+    while (*p && ParseRules::is_wslfcr(*p))
+      ++p;
+    if ((*p == '\0') || (*p == '#'))
+      continue;
+
+    // not comment or blank, so rip line into tokens
+    while (1) {
+      while (*p && ParseRules::is_wslfcr(*p))
+        ++p;
+      if ((*p == '\0') || (*p == '#'))
+        break;                  // EOL
+
+      if (*p == '\"') {
+        p += 1;
+
+        argv[argc++] = p;
+
+        while (*p && (*p != '\"')) {
+          p += 1;
+        }
+        if (*p == '\0') {
+          break;
+        }
+        *p++ = '\0';
+      } else {
+        argv[argc++] = p;
+
+        while (*p && !ParseRules::is_wslfcr(*p) && (*p != '#')) {
+          p += 1;
+        }
+        if ((*p == '\0') || (*p == '#')) {
+          break;
+        }
+        *p++ = '\0';
+      }
+    }
+
+    for (i = 0; i < argc; i++) {
+      vars[i] = plugin_expand(argv[i]);
+      if (vars[i]) {
+        argv[i] = vars[i];
+      }
+    }
+
+    plugin_load(argc, argv);
+
+    for (i = 0; i < argc; i++)
+      ats_free(vars[i]);
+  }
+
+  close(fd);
+}
+
diff --git a/proxy/Plugin.h b/proxy/Plugin.h
new file mode 100644
index 00000000..8f70f1a5
--- /dev/null
+++ b/proxy/Plugin.h
@@ -0,0 +1,90 @@
+/** @file
+
+  Plugin init declarations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __PLUGIN_H__
+#define __PLUGIN_H__
+
+#include "List.h"
+
+// need to keep syncronized with TSSDKVersion
+//   in ts/ts.h.in
+typedef enum
+{
+  PLUGIN_SDK_VERSION_UNKNOWN = -1,
+  PLUGIN_SDK_VERSION_2_0,
+  PLUGIN_SDK_VERSION_3_0,
+  PLUGIN_SDK_VERSION_4_0
+} PluginSDKVersion;
+
+struct PluginRegInfo
+{
+  PluginRegInfo();
+  ~PluginRegInfo();
+
+  bool plugin_registered;
+  char *plugin_path;
+
+  PluginSDKVersion sdk_version;
+  char *plugin_name;
+  char *vendor_name;
+  char *support_email;
+
+  LINK(PluginRegInfo, link);
+};
+
+// Plugin registration vars
+extern DLL<PluginRegInfo> plugin_reg_list;
+extern PluginRegInfo *plugin_reg_current;
+
+void plugin_init(void);
+
+/** Abstract interface class for plugin based continuations.
+
+    The primary intended use of this is for logging so that continuations
+    that generate logging messages can generate plugin local data in a
+    generic way.
+
+    The core will at appropriate times dynamically cast the continuation
+    to this class and if successful access the plugin data via these
+    methods.
+
+    Plugins should mix this in to continuations for which it is useful.
+    The default implementations return empty / invalid responses and should
+    be overridden by the plugin.
+ */
+class PluginIdentity
+{
+ public:
+  /** Get the plugin tag.
+      The returned string must have a lifetime at least as long as the plugin.
+      @return A string identifying the plugin or @c NULL.
+  */
+  virtual char const* getPluginTag() const { return NULL; }
+  /** Get the plugin instance ID.
+      A plugin can create multiple subsidiary instances. This is used as the
+      identifier for those to distinguish the instances.
+  */
+  virtual int64_t getPluginId() const { return 0; }
+};
+
+#endif /* __PLUGIN_H__ */
diff --git a/proxy/PluginVC.cc b/proxy/PluginVC.cc
new file mode 100644
index 00000000..16eb5a26
--- /dev/null
+++ b/proxy/PluginVC.cc
@@ -0,0 +1,1312 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   PluginVC.cc
+
+   Description: Allows bi-directional transfer for data from one
+      continuation to another via a mechanism that impersonates a
+      NetVC.  Should implement all external attributes of NetVConnections.
+
+   Since data is transfered within Traffic Server, this is a two
+   headed beast.  One NetVC on initiating side (active side) and
+   one NetVC on the receiving side (passive side).
+
+   The two NetVC subclasses, PluginVC, are part PluginVCCore object.  All
+   three objects share the same mutex.  That mutex is required
+   for doing operations that affect the shared buffers,
+   read state from the PluginVC on the other side or deal with deallocation.
+
+   To simplify the code, all data passing through the system goes initially
+   into a shared buffer.  There are two shared buffers, one for each
+   direction of the connection.  While it's more efficient to transfer
+   the data from one buffer to another directly, this creates a lot
+   of tricky conditions since you must be holding the lock for both
+   sides, in additional this VC's lock.  Additionally, issues like
+   watermarks are very hard to deal with.  Since we try to
+   to move data by IOBufferData references the efficiency penalty shouldn't
+   be too bad and if it is a big pentaly, a brave soul can reimplement
+   to move the data directly without the intermediate buffer.
+
+   Locking is difficult issue for this multi-headed beast.  In each
+   PluginVC, there a two locks. The one we got from our PluginVCCore and
+   the lock from the state machine using the PluginVC.  The read side
+   lock & the write side lock must be the same.  The regular net processor has
+   this constraint as well.  In order to handle scheduling of retry events cleanly,
+   we have two event poitners, one for each lock.  sm_lock_retry_event can only
+   be changed while holding the using state machine's lock and
+   core_lock_retry_event can only be manipulated while holding the PluginVC's
+   lock.  On entry to PluginVC::main_handler, we obtain all the locks
+   before looking at the events.  If we can't get all the locks
+   we reschedule the event for further retries.  Since all the locks are
+   obtained in the beginning of the handler, we know we are running
+   exclusively in the later parts of the handler and we will
+   be free from do_io or reenable calls on the PluginVC.
+
+   The assumption is made (conistant with IO Core spec) that any close,
+   shutdown, reenable, or do_io_{read,write) operation is done by the callee
+   while holding the lock for that side of the operation.
+
+
+ ****************************************************************************/
+
+#include "PluginVC.h"
+#include "P_EventSystem.h"
+#include "P_Net.h"
+#include "Regression.h"
+
+#define PVC_LOCK_RETRY_TIME HRTIME_MSECONDS(10)
+#define PVC_DEFAULT_MAX_BYTES 32768
+#define MIN_BLOCK_TRANSFER_BYTES 128
+
+#define EVENT_PTR_LOCKED (void*) 0x1
+#define EVENT_PTR_CLOSED (void*) 0x2
+
+#define PVC_TYPE    ((vc_type == PLUGIN_VC_ACTIVE) ? "Active" : "Passive")
+#define PVC_ID      (core_obj? core_obj->id : (unsigned)-1)
+
+PluginVC::PluginVC():
+NetVConnection(),
+magic(PLUGIN_VC_MAGIC_ALIVE), vc_type(PLUGIN_VC_UNKNOWN), core_obj(NULL),
+other_side(NULL), read_state(), write_state(),
+need_read_process(false), need_write_process(false),
+closed(false), sm_lock_retry_event(NULL), core_lock_retry_event(NULL),
+deletable(false), reentrancy_count(0), active_timeout(0), active_event(NULL),
+inactive_timeout(0), inactive_timeout_at(0), inactive_event(NULL)
+{
+  SET_HANDLER(&PluginVC::main_handler);
+}
+
+PluginVC::~PluginVC()
+{
+  mutex = NULL;
+}
+
+int
+PluginVC::main_handler(int event, void *data)
+{
+
+  Debug("pvc_event", "[%u] %s: Received event %d", PVC_ID, PVC_TYPE, event);
+
+  ink_release_assert(event == EVENT_INTERVAL || event == EVENT_IMMEDIATE);
+  ink_release_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+  ink_assert(!deletable);
+  ink_assert(data != NULL);
+
+  Event *call_event = (Event *) data;
+  EThread *my_ethread = mutex->thread_holding;
+  ink_release_assert(my_ethread != NULL);
+
+  bool read_mutex_held = false;
+  bool write_mutex_held = false;
+  Ptr<ProxyMutex> read_side_mutex = read_state.vio.mutex;
+  Ptr<ProxyMutex> write_side_mutex = write_state.vio.mutex;
+
+  if (read_side_mutex) {
+    read_mutex_held = MUTEX_TAKE_TRY_LOCK(read_side_mutex, my_ethread);
+
+    if (!read_mutex_held) {
+      if (call_event != inactive_event)
+        call_event->schedule_in(PVC_LOCK_RETRY_TIME);
+      return 0;
+    }
+
+    if (read_side_mutex.m_ptr != read_state.vio.mutex.m_ptr) {
+      // It's possible some swapped the mutex on us before
+      //  we were able to grab it
+      Mutex_unlock(read_side_mutex, my_ethread);
+      if (call_event != inactive_event)
+        call_event->schedule_in(PVC_LOCK_RETRY_TIME);
+      return 0;
+    }
+  }
+
+  if (write_side_mutex) {
+    write_mutex_held = MUTEX_TAKE_TRY_LOCK(write_side_mutex, my_ethread);
+
+    if (!write_mutex_held) {
+      if (read_mutex_held) {
+        Mutex_unlock(read_side_mutex, my_ethread);
+      }
+      if (call_event != inactive_event)
+        call_event->schedule_in(PVC_LOCK_RETRY_TIME);
+      return 0;
+    }
+
+    if (write_side_mutex.m_ptr != write_state.vio.mutex.m_ptr) {
+      // It's possible some swapped the mutex on us before
+      //  we were able to grab it
+      Mutex_unlock(write_side_mutex, my_ethread);
+      if (read_mutex_held) {
+        Mutex_unlock(read_side_mutex, my_ethread);
+      }
+      if (call_event != inactive_event)
+        call_event->schedule_in(PVC_LOCK_RETRY_TIME);
+      return 0;
+    }
+  }
+  // We've got all the locks so there should not be any
+  //   other calls active
+  ink_release_assert(reentrancy_count == 0);
+
+  if (closed) {
+    process_close();
+
+    if (read_mutex_held) {
+      Mutex_unlock(read_side_mutex, my_ethread);
+    }
+
+    if (write_mutex_held) {
+      Mutex_unlock(write_side_mutex, my_ethread);
+    }
+
+    return 0;
+  }
+  // We can get closed while we're calling back the
+  //  continuation.  Set the reentrancy count so we know
+  //  we could be calling the continuation and that we
+  //  need to defer close processing
+  reentrancy_count++;
+
+  if (call_event == active_event) {
+    process_timeout(call_event, VC_EVENT_ACTIVE_TIMEOUT, &active_event);
+  } else if (call_event == inactive_event) {
+    if (inactive_timeout_at && inactive_timeout_at < ink_get_hrtime()) {
+      process_timeout(call_event, VC_EVENT_INACTIVITY_TIMEOUT, &inactive_event);
+      call_event->cancel();
+    }
+  } else {
+    if (call_event == sm_lock_retry_event) {
+      sm_lock_retry_event = NULL;
+    } else {
+      ink_release_assert(call_event == core_lock_retry_event);
+      core_lock_retry_event = NULL;
+    }
+
+    if (need_read_process) {
+      process_read_side(false);
+    }
+
+    if (need_write_process && !closed) {
+      process_write_side(false);
+    }
+
+  }
+
+  reentrancy_count--;
+  if (closed) {
+    process_close();
+  }
+
+  if (read_mutex_held) {
+    Mutex_unlock(read_side_mutex, my_ethread);
+  }
+
+  if (write_mutex_held) {
+    Mutex_unlock(write_side_mutex, my_ethread);
+  }
+
+  return 0;
+}
+
+VIO *
+PluginVC::do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf)
+{
+
+  ink_assert(!closed);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  if (buf) {
+    read_state.vio.buffer.writer_for(buf);
+  } else {
+    read_state.vio.buffer.clear();
+  }
+
+  // Note: we set vio.op last because process_read_side looks at it to
+  //  tell if the VConnection is active.
+  read_state.vio.mutex = c->mutex;
+  read_state.vio._cont = c;
+  read_state.vio.nbytes = nbytes;
+  read_state.vio.ndone = 0;
+  read_state.vio.vc_server = (VConnection *) this;
+  read_state.vio.op = VIO::READ;
+
+  Debug("pvc", "[%u] %s: do_io_read for %" PRId64" bytes", PVC_ID, PVC_TYPE, nbytes);
+
+  // Since reentrant callbacks are not allowed on from do_io
+  //   functions schedule ourselves get on a different stack
+  need_read_process = true;
+  setup_event_cb(0, &sm_lock_retry_event);
+
+  return &read_state.vio;
+}
+
+VIO *
+PluginVC::do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * abuffer, bool owner)
+{
+
+  ink_assert(!closed);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  if (abuffer) {
+    ink_assert(!owner);
+    write_state.vio.buffer.reader_for(abuffer);
+  } else {
+    write_state.vio.buffer.clear();
+  }
+
+  // Note: we set vio.op last because process_write_side looks at it to
+  //  tell if the VConnection is active.
+  write_state.vio.mutex = c->mutex;
+  write_state.vio._cont = c;
+  write_state.vio.nbytes = nbytes;
+  write_state.vio.ndone = 0;
+  write_state.vio.vc_server = (VConnection *) this;
+  write_state.vio.op = VIO::WRITE;
+
+  Debug("pvc", "[%u] %s: do_io_write for %" PRId64" bytes", PVC_ID, PVC_TYPE, nbytes);
+
+  // Since reentrant callbacks are not allowed on from do_io
+  //   functions schedule ourselves get on a different stack
+  need_write_process = true;
+  setup_event_cb(0, &sm_lock_retry_event);
+
+  return &write_state.vio;
+}
+
+void
+PluginVC::reenable(VIO * vio)
+{
+
+  ink_assert(!closed);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+  ink_assert(vio->mutex->thread_holding == this_ethread());
+
+  Debug("pvc", "[%u] %s: reenable %s", PVC_ID, PVC_TYPE, (vio->op == VIO::WRITE) ? "Write" : "Read");
+
+  if (vio->op == VIO::WRITE) {
+    ink_assert(vio == &write_state.vio);
+    need_write_process = true;
+  } else if (vio->op == VIO::READ) {
+    need_read_process = true;
+  } else {
+    ink_release_assert(0);
+  }
+  setup_event_cb(0, &sm_lock_retry_event);
+}
+
+void
+PluginVC::reenable_re(VIO * vio)
+{
+
+  ink_assert(!closed);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+  ink_assert(vio->mutex->thread_holding == this_ethread());
+
+  Debug("pvc", "[%u] %s: reenable_re %s", PVC_ID, PVC_TYPE, (vio->op == VIO::WRITE) ? "Write" : "Read");
+
+  MUTEX_TRY_LOCK(lock, this->mutex, this_ethread());
+  if (!lock) {
+    if (vio->op == VIO::WRITE) {
+      need_write_process = true;
+    } else {
+      need_read_process = true;
+    }
+    setup_event_cb(PVC_LOCK_RETRY_TIME, &sm_lock_retry_event);
+    return;
+  }
+
+  reentrancy_count++;
+
+  if (vio->op == VIO::WRITE) {
+    ink_assert(vio == &write_state.vio);
+    process_write_side(false);
+  } else if (vio->op == VIO::READ) {
+    ink_assert(vio == &read_state.vio);
+    process_read_side(false);
+  } else {
+    ink_release_assert(0);
+  }
+
+  reentrancy_count--;
+
+  // To process the close, we need the lock
+  //   for the PluginVC.  Schedule an event
+  //   to make sure we get it
+  if (closed) {
+    setup_event_cb(0, &sm_lock_retry_event);
+  }
+}
+
+void
+PluginVC::do_io_close(int /* flag ATS_UNUSED */)
+{
+  ink_assert(closed == false);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  Debug("pvc", "[%u] %s: do_io_close", PVC_ID, PVC_TYPE);
+
+  if (reentrancy_count > 0) {
+    // Do nothing since dealloacting ourselves
+    //  now will lead to us running on a dead
+    //  PluginVC since we are being called
+    //  reentrantly
+    closed = true;
+    return;
+  }
+
+  MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+
+  if (!lock) {
+    setup_event_cb(PVC_LOCK_RETRY_TIME, &sm_lock_retry_event);
+    closed = true;
+    return;
+  } else {
+    closed = true;
+  }
+
+  process_close();
+}
+
+void
+PluginVC::do_io_shutdown(ShutdownHowTo_t howto)
+{
+
+  ink_assert(!closed);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  switch (howto) {
+  case IO_SHUTDOWN_READ:
+    read_state.shutdown = true;
+    break;
+  case IO_SHUTDOWN_WRITE:
+    write_state.shutdown = true;
+    break;
+  case IO_SHUTDOWN_READWRITE:
+    read_state.shutdown = true;
+    write_state.shutdown = true;
+    break;
+  }
+}
+
+// int PluginVC::transfer_bytes(MIOBuffer* transfer_to,
+//                              IOBufferReader* transfer_from, int act_on)
+//
+//   Takes care of transfering bytes from a reader to another buffer
+//      In the case of large transfers, we move blocks.  In the case
+//      of small transfers we copy data so as to not build too many
+//      buffer blocks
+//
+// Args:
+//   transfer_to:  buffer to copy to
+//   transfer_from:  buffer_copy_from
+//   act_on: is the max number of bytes we are to copy.  There must
+//          be at least act_on bytes available from transfer_from
+//
+// Returns number of bytes transfered
+//
+int64_t
+PluginVC::transfer_bytes(MIOBuffer * transfer_to, IOBufferReader * transfer_from, int64_t act_on)
+{
+
+  int64_t total_added = 0;
+
+  ink_assert(act_on <= transfer_from->read_avail());
+
+  while (act_on > 0) {
+    int64_t block_read_avail = transfer_from->block_read_avail();
+    int64_t to_move = MIN(act_on, block_read_avail);
+    int64_t moved = 0;
+
+    if (to_move <= 0) {
+      break;
+    }
+
+    if (to_move >= MIN_BLOCK_TRANSFER_BYTES) {
+      moved = transfer_to->write(transfer_from, to_move, 0);
+    } else {
+      // We have a really small amount of data.  To make
+      //  sure we don't get a huge build up of blocks which
+      //  can lead to stack overflows if the buffer is destroyed
+      //  before we read from it, we need copy over to the new
+      //  buffer instead of doing a block transfer
+      moved = transfer_to->write(transfer_from->start(), to_move);
+
+      if (moved == 0) {
+        // We are out of buffer space
+        break;
+      }
+    }
+
+    act_on -= moved;
+    transfer_from->consume(moved);
+    total_added += moved;
+  }
+
+  return total_added;
+}
+
+// void PluginVC::process_write_side(bool cb_ok)
+//
+//   This function may only be called while holding
+//      this->mutex & while it is ok to callback the
+//      write side continuation
+//
+//   Does write side processing
+//
+void
+PluginVC::process_write_side(bool other_side_call)
+{
+
+  ink_assert(!deletable);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  MIOBuffer *core_buffer = (vc_type == PLUGIN_VC_ACTIVE) ? core_obj->a_to_p_buffer : core_obj->p_to_a_buffer;
+
+  need_write_process = false;
+
+  if (write_state.vio.op != VIO::WRITE || closed || write_state.shutdown) {
+    return;
+  }
+  // Acquire the lock of the write side continuation
+  EThread *my_ethread = mutex->thread_holding;
+  ink_assert(my_ethread != NULL);
+  MUTEX_TRY_LOCK(lock, write_state.vio.mutex, my_ethread);
+  if (!lock) {
+    Debug("pvc_event", "[%u] %s: process_write_side lock miss, retrying", PVC_ID, PVC_TYPE);
+
+    need_write_process = true;
+    setup_event_cb(PVC_LOCK_RETRY_TIME, &core_lock_retry_event);
+    return;
+  }
+
+  Debug("pvc", "[%u] %s: process_write_side", PVC_ID, PVC_TYPE);
+  need_write_process = false;
+
+
+  // Check the state of our write buffer as well as ntodo
+  int64_t ntodo = write_state.vio.ntodo();
+  if (ntodo == 0) {
+    return;
+  }
+
+  IOBufferReader *reader = write_state.vio.get_reader();
+  int64_t bytes_avail = reader->read_avail();
+  int64_t act_on = MIN(bytes_avail, ntodo);
+
+  Debug("pvc", "[%u] %s: process_write_side; act_on %" PRId64"", PVC_ID, PVC_TYPE, act_on);
+
+  if (other_side->closed || other_side->read_state.shutdown) {
+    write_state.vio._cont->handleEvent(VC_EVENT_ERROR, &write_state.vio);
+    return;
+  }
+
+  if (act_on <= 0) {
+    if (ntodo > 0) {
+      // Notify the continuation that we are "disabling"
+      //  ourselves due to to nothing to write
+      write_state.vio._cont->handleEvent(VC_EVENT_WRITE_READY, &write_state.vio);
+    }
+    return;
+  }
+  // Bytes available, try to transfer to the PluginVCCore
+  //   intermediate buffer
+  //
+  int64_t buf_space = PVC_DEFAULT_MAX_BYTES - core_buffer->max_read_avail();
+  if (buf_space <= 0) {
+    Debug("pvc", "[%u] %s: process_write_side no buffer space", PVC_ID, PVC_TYPE);
+    return;
+  }
+  act_on = MIN(act_on, buf_space);
+
+  int64_t added = transfer_bytes(core_buffer, reader, act_on);
+  if (added < 0) {
+    // Couldn't actually get the buffer space.  This only
+    //   happens on small transfers with the above
+    //   PVC_DEFAULT_MAX_BYTES factor doesn't apply
+    Debug("pvc", "[%u] %s: process_write_side out of buffer space", PVC_ID, PVC_TYPE);
+    return;
+  }
+
+  write_state.vio.ndone += added;
+
+  Debug("pvc", "[%u] %s: process_write_side; added %" PRId64"", PVC_ID, PVC_TYPE, added);
+
+  if (write_state.vio.ntodo() == 0) {
+    write_state.vio._cont->handleEvent(VC_EVENT_WRITE_COMPLETE, &write_state.vio);
+  } else {
+    write_state.vio._cont->handleEvent(VC_EVENT_WRITE_READY, &write_state.vio);
+  }
+
+  update_inactive_time();
+
+  // Wake up the read side on the other side to process these bytes
+  if (!other_side->closed) {
+    if (!other_side_call) {
+      other_side->process_read_side(true);
+    } else {
+      other_side->read_state.vio.reenable();
+    }
+  }
+}
+
+
+// void PluginVC::process_read_side()
+//
+//   This function may only be called while holding
+//      this->mutex & while it is ok to callback the
+//      read side continuation
+//
+//   Does read side processing
+//
+void
+PluginVC::process_read_side(bool other_side_call)
+{
+
+  ink_assert(!deletable);
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  // TODO: Never used??
+  //MIOBuffer *core_buffer;
+
+  IOBufferReader *core_reader;
+
+  if (vc_type == PLUGIN_VC_ACTIVE) {
+    //core_buffer = core_obj->p_to_a_buffer;
+    core_reader = core_obj->p_to_a_reader;
+  } else {
+    ink_assert(vc_type == PLUGIN_VC_PASSIVE);
+    //core_buffer = core_obj->a_to_p_buffer;
+    core_reader = core_obj->a_to_p_reader;
+  }
+
+  need_read_process = false;
+
+  if (read_state.vio.op != VIO::READ || closed || read_state.shutdown) {
+    return;
+  }
+  // Acquire the lock of the read side continuation
+  EThread *my_ethread = mutex->thread_holding;
+  ink_assert(my_ethread != NULL);
+  MUTEX_TRY_LOCK(lock, read_state.vio.mutex, my_ethread);
+  if (!lock) {
+    Debug("pvc_event", "[%u] %s: process_read_side lock miss, retrying", PVC_ID, PVC_TYPE);
+
+    need_read_process = true;
+    setup_event_cb(PVC_LOCK_RETRY_TIME, &core_lock_retry_event);
+    return;
+  }
+
+  Debug("pvc", "[%u] %s: process_read_side", PVC_ID, PVC_TYPE);
+  need_read_process = false;
+
+  // Check the state of our read buffer as well as ntodo
+  int64_t ntodo = read_state.vio.ntodo();
+  if (ntodo == 0) {
+    return;
+  }
+
+  int64_t bytes_avail = core_reader->read_avail();
+  int64_t act_on = MIN(bytes_avail, ntodo);
+
+  Debug("pvc", "[%u] %s: process_read_side; act_on %" PRId64"", PVC_ID, PVC_TYPE, act_on);
+
+  if (act_on <= 0) {
+    if (other_side->closed || other_side->write_state.shutdown) {
+      read_state.vio._cont->handleEvent(VC_EVENT_EOS, &read_state.vio);
+    }
+    return;
+  }
+  // Bytes available, try to transfer from the PluginVCCore
+  //   intermediate buffer
+  //
+  MIOBuffer *output_buffer = read_state.vio.get_writer();
+
+  int64_t water_mark = output_buffer->water_mark;
+  water_mark = MAX(water_mark, PVC_DEFAULT_MAX_BYTES);
+  int64_t buf_space = water_mark - output_buffer->max_read_avail();
+  if (buf_space <= 0) {
+    Debug("pvc", "[%u] %s: process_read_side no buffer space", PVC_ID, PVC_TYPE);
+    return;
+  }
+  act_on = MIN(act_on, buf_space);
+
+  int64_t added = transfer_bytes(output_buffer, core_reader, act_on);
+  if (added <= 0) {
+    // Couldn't actually get the buffer space.  This only
+    //   happens on small transfers with the above
+    //   PVC_DEFAULT_MAX_BYTES factor doesn't apply
+    Debug("pvc", "[%u] %s: process_read_side out of buffer space", PVC_ID, PVC_TYPE);
+    return;
+  }
+
+  read_state.vio.ndone += added;
+
+  Debug("pvc", "[%u] %s: process_read_side; added %" PRId64"", PVC_ID, PVC_TYPE, added);
+
+  if (read_state.vio.ntodo() == 0) {
+    read_state.vio._cont->handleEvent(VC_EVENT_READ_COMPLETE, &read_state.vio);
+  } else {
+    read_state.vio._cont->handleEvent(VC_EVENT_READ_READY, &read_state.vio);
+  }
+
+  update_inactive_time();
+
+  // Wake up the other side so it knows there is space available in
+  //  intermediate buffer
+  if (!other_side->closed) {
+    if (!other_side_call) {
+      other_side->process_write_side(true);
+    } else {
+      other_side->write_state.vio.reenable();
+    }
+  }
+}
+
+// void PluginVC::process_read_close()
+//
+//   This function may only be called while holding
+//      this->mutex
+//
+//   Tries to close the and dealloc the the vc
+//
+void
+PluginVC::process_close()
+{
+
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  Debug("pvc", "[%u] %s: process_close", PVC_ID, PVC_TYPE);
+
+  if (!deletable) {
+    deletable = true;
+  }
+
+  if (sm_lock_retry_event) {
+    sm_lock_retry_event->cancel();
+    sm_lock_retry_event = NULL;
+  }
+
+  if (core_lock_retry_event) {
+    core_lock_retry_event->cancel();
+    core_lock_retry_event = NULL;
+  }
+
+  if (active_event) {
+    active_event->cancel();
+    active_event = NULL;
+  }
+
+  if (inactive_event) {
+    inactive_event->cancel();
+    inactive_event = NULL;
+    inactive_timeout_at = 0;
+  }
+  // If the other side of the PluginVC is not closed
+  //  we need to force it process both living sides
+  //  of the connection in order that it recognizes
+  //  the close
+  if (!other_side->closed && core_obj->connected) {
+    other_side->need_write_process = true;
+    other_side->need_read_process = true;
+    other_side->setup_event_cb(0, &other_side->core_lock_retry_event);
+  }
+
+  core_obj->attempt_delete();
+}
+
+// void PluginVC::process_timeout(Event* e, int event_to_send, Event** our_eptr)
+//
+//   Handles sending timeout event to the VConnection.  e is the event we got
+//     which indicats the timeout.  event_to_send is the event to the
+//     vc user.  Our_eptr is a pointer our event either inactive_event,
+//     or active_event.  If we successfully send the timeout to vc user,
+//     we clear the pointer, otherwise we reschedule it.
+//
+//   Because the possibility of reentrant close from vc user, we don't want to
+//      touch any state after making the call back
+//
+void
+PluginVC::process_timeout(Event * e, int event_to_send, Event ** our_eptr)
+{
+
+  ink_assert(e = *our_eptr);
+
+  if (read_state.vio.op == VIO::READ && !read_state.shutdown && read_state.vio.ntodo() > 0) {
+    MUTEX_TRY_LOCK(lock, read_state.vio.mutex, e->ethread);
+    if (!lock) {
+      e->schedule_in(PVC_LOCK_RETRY_TIME);
+      return;
+    }
+    *our_eptr = NULL;
+    read_state.vio._cont->handleEvent(event_to_send, &read_state.vio);
+  } else if (write_state.vio.op == VIO::WRITE && !write_state.shutdown && write_state.vio.ntodo() > 0) {
+    MUTEX_TRY_LOCK(lock, write_state.vio.mutex, e->ethread);
+    if (!lock) {
+      e->schedule_in(PVC_LOCK_RETRY_TIME);
+      return;
+    }
+    *our_eptr = NULL;
+    write_state.vio._cont->handleEvent(event_to_send, &write_state.vio);
+  } else {
+    *our_eptr = NULL;
+  }
+}
+
+void
+PluginVC::update_inactive_time()
+{
+  if (inactive_event && inactive_timeout) {
+    //inactive_event->cancel();
+    //inactive_event = eventProcessor.schedule_in(this, inactive_timeout);
+    inactive_timeout_at = ink_get_hrtime() + inactive_timeout;
+  }
+}
+
+// void PluginVC::setup_event_cb(ink_hrtime in)
+//
+//    Setup up the event processor to call us back.
+//      We've got two different event pointers to handle
+//      locking issues
+//
+void
+PluginVC::setup_event_cb(ink_hrtime in, Event ** e_ptr)
+{
+
+  ink_assert(magic == PLUGIN_VC_MAGIC_ALIVE);
+
+  if (*e_ptr == NULL) {
+
+    // We locked the pointer so we can now allocate an event
+    //   to call us back
+    if (in == 0) {
+      if(this_ethread()->tt == REGULAR) {
+	 *e_ptr = this_ethread()->schedule_imm_local(this);
+      }
+      else
+      {
+         *e_ptr = eventProcessor.schedule_imm(this);
+      }
+    } 
+    else 
+    {
+      if(this_ethread()->tt == REGULAR) {
+        *e_ptr = this_ethread()->schedule_in_local(this,in);
+      }
+      else
+      {
+        *e_ptr = eventProcessor.schedule_in(this, in);
+      }
+    }
+  }
+}
+
+void
+PluginVC::set_active_timeout(ink_hrtime timeout_in)
+{
+  active_timeout = timeout_in;
+
+  // FIX - Do we need to handle the case where the timeout is set
+  //   but no io has been done?
+  if (active_event) {
+    ink_assert(!active_event->cancelled);
+    active_event->cancel();
+    active_event = NULL;
+  }
+
+  if (active_timeout > 0) {
+    active_event = eventProcessor.schedule_in(this, active_timeout);
+  }
+}
+
+void
+PluginVC::set_inactivity_timeout(ink_hrtime timeout_in)
+{
+  inactive_timeout = timeout_in;
+  if (inactive_timeout != 0) {
+    inactive_timeout_at = ink_get_hrtime() + inactive_timeout;
+    if (inactive_event == NULL) {
+      inactive_event = eventProcessor.schedule_every(this, HRTIME_SECONDS(1));
+    }
+  } else {
+    inactive_timeout_at = 0;
+    if (inactive_event) {
+      inactive_event->cancel();
+      inactive_event = NULL;
+    }
+  }
+}
+
+void
+PluginVC::cancel_active_timeout()
+{
+  set_active_timeout(0);
+}
+
+void
+PluginVC::cancel_inactivity_timeout()
+{
+  set_inactivity_timeout(0);
+}
+
+ink_hrtime
+PluginVC::get_active_timeout()
+{
+  return active_timeout;
+}
+
+ink_hrtime
+PluginVC::get_inactivity_timeout()
+{
+  return inactive_timeout;
+}
+
+SOCKET
+PluginVC::get_socket()
+{
+  return 0;
+}
+
+void
+PluginVC::set_local_addr()
+{
+  if (vc_type == PLUGIN_VC_ACTIVE) {
+    ats_ip_copy(&local_addr, &core_obj->active_addr_struct);
+//    local_addr = core_obj->active_addr_struct;
+  } else {
+    ats_ip_copy(&local_addr, &core_obj->passive_addr_struct);
+//    local_addr = core_obj->passive_addr_struct;
+  }
+}
+
+void
+PluginVC::set_remote_addr()
+{
+  if (vc_type == PLUGIN_VC_ACTIVE) {
+    ats_ip_copy(&remote_addr, &core_obj->passive_addr_struct);
+  } else {
+    ats_ip_copy(&remote_addr, &core_obj->active_addr_struct);
+  }
+}
+
+int
+PluginVC::set_tcp_init_cwnd(int /* init_cwnd ATS_UNUSED */)
+{
+  return -1;
+}
+
+void
+PluginVC::apply_options()
+{
+  // do nothing
+}
+
+bool
+PluginVC::get_data(int id, void *data)
+{
+  if (data == NULL) {
+    return false;
+  }
+  switch (id) {
+  case PLUGIN_VC_DATA_LOCAL:
+    if (vc_type == PLUGIN_VC_ACTIVE) {
+      *(void **) data = core_obj->active_data;
+    } else {
+      *(void **) data = core_obj->passive_data;
+    }
+    return true;
+  case PLUGIN_VC_DATA_REMOTE:
+    if (vc_type == PLUGIN_VC_ACTIVE) {
+      *(void **) data = core_obj->passive_data;
+    } else {
+      *(void **) data = core_obj->active_data;
+    }
+    return true;
+  default:
+    *(void **) data = NULL;
+    return false;
+  }
+}
+
+bool
+PluginVC::set_data(int id, void *data)
+{
+  switch (id) {
+  case PLUGIN_VC_DATA_LOCAL:
+    if (vc_type == PLUGIN_VC_ACTIVE) {
+      core_obj->active_data = data;
+    } else {
+      core_obj->passive_data = data;
+    }
+    return true;
+  case PLUGIN_VC_DATA_REMOTE:
+    if (vc_type == PLUGIN_VC_ACTIVE) {
+      core_obj->passive_data = data;
+    } else {
+      core_obj->active_data = data;
+    }
+    return true;
+  default:
+    return false;
+  }
+}
+
+// PluginVCCore
+
+vint32
+  PluginVCCore::nextid = 0;
+
+PluginVCCore::~PluginVCCore()
+{
+}
+
+PluginVCCore *
+PluginVCCore::alloc()
+{
+  PluginVCCore *pvc = new PluginVCCore;
+  pvc->init();
+  return pvc;
+}
+
+void
+PluginVCCore::init()
+{
+  mutex = new_ProxyMutex();
+
+  active_vc.vc_type = PLUGIN_VC_ACTIVE;
+  active_vc.other_side = &passive_vc;
+  active_vc.core_obj = this;
+  active_vc.mutex = mutex;
+  active_vc.thread = this_ethread();
+
+  passive_vc.vc_type = PLUGIN_VC_PASSIVE;
+  passive_vc.other_side = &active_vc;
+  passive_vc.core_obj = this;
+  passive_vc.mutex = mutex;
+  passive_vc.thread = active_vc.thread;
+
+  p_to_a_buffer = new_MIOBuffer(BUFFER_SIZE_INDEX_32K);
+  p_to_a_reader = p_to_a_buffer->alloc_reader();
+
+  a_to_p_buffer = new_MIOBuffer(BUFFER_SIZE_INDEX_32K);
+  a_to_p_reader = a_to_p_buffer->alloc_reader();
+
+  Debug("pvc", "[%u] Created PluginVCCore at %p, active %p, passive %p", id, this, &active_vc, &passive_vc);
+}
+
+void
+PluginVCCore::destroy()
+{
+
+  Debug("pvc", "[%u] Destroying PluginVCCore at %p", id, this);
+
+  ink_assert(active_vc.closed == true || !connected);
+  active_vc.mutex = NULL;
+  active_vc.read_state.vio.buffer.clear();
+  active_vc.write_state.vio.buffer.clear();
+  active_vc.magic = PLUGIN_VC_MAGIC_DEAD;
+
+  ink_assert(passive_vc.closed == true || !connected);
+  passive_vc.mutex = NULL;
+  passive_vc.read_state.vio.buffer.clear();
+  passive_vc.write_state.vio.buffer.clear();
+  passive_vc.magic = PLUGIN_VC_MAGIC_DEAD;
+
+  if (p_to_a_buffer) {
+    free_MIOBuffer(p_to_a_buffer);
+    p_to_a_buffer = NULL;
+  }
+
+  if (a_to_p_buffer) {
+    free_MIOBuffer(a_to_p_buffer);
+    a_to_p_buffer = NULL;
+  }
+
+  this->mutex = NULL;
+  delete this;
+}
+
+void
+PluginVCCore::set_accept_cont(Continuation * c)
+{
+  connect_to = c;
+  // FIX ME - must return action
+}
+
+PluginVC *
+PluginVCCore::connect()
+{
+
+  // Make sure there is another end to connect to
+  if (connect_to == NULL) {
+    return NULL;
+  }
+
+  connected = true;
+  state_send_accept(EVENT_IMMEDIATE, NULL);
+
+  return &active_vc;
+}
+
+Action *
+PluginVCCore::connect_re(Continuation * c)
+{
+
+  // Make sure there is another end to connect to
+  if (connect_to == NULL) {
+    return NULL;
+  }
+
+  EThread *my_thread = this_ethread();
+  MUTEX_TAKE_LOCK(this->mutex, my_thread);
+
+  connected = true;
+  state_send_accept(EVENT_IMMEDIATE, NULL);
+
+  // We have to take out our mutex because rest of the
+  //   system expects the VC mutex to held when calling back.
+  // We can use take lock here instead of try lock because the
+  //   lock should never already be held.
+
+  c->handleEvent(NET_EVENT_OPEN, &active_vc);
+  MUTEX_UNTAKE_LOCK(this->mutex, my_thread);
+
+  return ACTION_RESULT_DONE;
+}
+
+int
+PluginVCCore::state_send_accept_failed(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  MUTEX_TRY_LOCK(lock, connect_to->mutex, this_ethread());
+
+  if (lock) {
+    connect_to->handleEvent(NET_EVENT_ACCEPT_FAILED, NULL);
+    destroy();
+  } else {
+    SET_HANDLER(&PluginVCCore::state_send_accept_failed);
+    eventProcessor.schedule_in(this, PVC_LOCK_RETRY_TIME);
+  }
+
+  return 0;
+
+}
+
+int
+PluginVCCore::state_send_accept(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  MUTEX_TRY_LOCK(lock, connect_to->mutex, this_ethread());
+
+  if (lock) {
+    connect_to->handleEvent(NET_EVENT_ACCEPT, &passive_vc);
+  } else {
+    SET_HANDLER(&PluginVCCore::state_send_accept);
+    eventProcessor.schedule_in(this, PVC_LOCK_RETRY_TIME);
+  }
+
+  return 0;
+}
+
+
+// void PluginVCCore::attempt_delete()
+//
+//  Mutex must be held when calling this function
+//
+void
+PluginVCCore::attempt_delete()
+{
+
+  if (active_vc.deletable) {
+    if (passive_vc.deletable) {
+      destroy();
+    } else if (!connected) {
+      state_send_accept_failed(EVENT_IMMEDIATE, NULL);
+    }
+  }
+}
+
+// void PluginVCCore::kill_no_connect()
+//
+//   Called to kill the PluginVCCore when the
+//     connect call hasn't been made yet
+//
+void
+PluginVCCore::kill_no_connect()
+{
+  ink_assert(!connected);
+  ink_assert(!active_vc.closed);
+  active_vc.do_io_close();
+}
+
+void
+PluginVCCore::set_passive_addr(in_addr_t ip, int port)
+{
+  ats_ip4_set(&passive_addr_struct, htonl(ip), htons(port));
+}
+
+void
+PluginVCCore::set_passive_addr(sockaddr const* ip)
+{
+  passive_addr_struct.assign(ip);
+}
+
+void
+PluginVCCore::set_active_addr(in_addr_t ip, int port)
+{
+  ats_ip4_set(&active_addr_struct, htonl(ip), htons(port));
+}
+
+void
+PluginVCCore::set_active_addr(sockaddr const* ip)
+{
+  active_addr_struct.assign(ip);
+}
+
+void
+PluginVCCore::set_passive_data(void *data)
+{
+  passive_data = data;
+}
+
+void
+PluginVCCore::set_active_data(void *data)
+{
+  active_data = data;
+}
+
+void
+PluginVCCore::set_transparent(bool passive_side, bool active_side)
+{
+  passive_vc.set_is_transparent(passive_side);
+  active_vc.set_is_transparent(active_side);
+}
+
+void
+PluginVCCore::set_plugin_id(int64_t id)
+{
+  passive_vc.plugin_id = active_vc.plugin_id = id;
+}
+
+void
+PluginVCCore::set_plugin_tag(char const* tag)
+{
+  passive_vc.plugin_tag = active_vc.plugin_tag = tag;
+}
+
+/*************************************************************
+ *
+ *   REGRESSION TEST STUFF
+ *
+ **************************************************************/
+
+#if TS_HAS_TESTS
+class PVCTestDriver:public NetTestDriver
+{
+public:
+  PVCTestDriver();
+  ~PVCTestDriver();
+
+  void start_tests(RegressionTest * r_arg, int *pstatus_arg);
+  void run_next_test();
+  int main_handler(int event, void *data);
+
+private:
+  unsigned i;
+  unsigned completions_received;
+};
+
+PVCTestDriver::PVCTestDriver():
+NetTestDriver(), i(0), completions_received(0)
+{
+}
+
+PVCTestDriver::~PVCTestDriver()
+{
+  mutex = NULL;
+}
+
+void
+PVCTestDriver::start_tests(RegressionTest * r_arg, int *pstatus_arg)
+{
+  mutex = new_ProxyMutex();
+  MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+
+  r = r_arg;
+  pstatus = pstatus_arg;
+
+  run_next_test();
+
+  SET_HANDLER(&PVCTestDriver::main_handler);
+}
+
+void
+PVCTestDriver::run_next_test()
+{
+
+  unsigned a_index = i * 2;
+  unsigned p_index = a_index + 1;
+
+  if (p_index >= num_netvc_tests) {
+    // We are done - // FIX - PASS or FAIL?
+    if (errors == 0) {
+      *pstatus = REGRESSION_TEST_PASSED;
+    } else {
+      *pstatus = REGRESSION_TEST_FAILED;
+    }
+    delete this;
+    return;
+  }
+  completions_received = 0;
+  i++;
+
+  Debug("pvc_test", "Starting test %s", netvc_tests_def[a_index].test_name);
+
+  NetVCTest *p = new NetVCTest;
+  NetVCTest *a = new NetVCTest;
+  PluginVCCore *core = PluginVCCore::alloc();
+  core->set_accept_cont(p);
+
+  p->init_test(NET_VC_TEST_PASSIVE, this, NULL, r, &netvc_tests_def[p_index], "PluginVC", "pvc_test_detail");
+  PluginVC *a_vc = core->connect();
+
+  a->init_test(NET_VC_TEST_ACTIVE, this, a_vc, r, &netvc_tests_def[a_index], "PluginVC", "pvc_test_detail");
+}
+
+int
+PVCTestDriver::main_handler(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  completions_received++;
+
+  if (completions_received == 2) {
+    run_next_test();
+  }
+
+  return 0;
+}
+
+EXCLUSIVE_REGRESSION_TEST(PVC) (RegressionTest * t, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  PVCTestDriver *driver = new PVCTestDriver;
+  driver->start_tests(t, pstatus);
+}
+#endif
diff --git a/proxy/PluginVC.h b/proxy/PluginVC.h
new file mode 100644
index 00000000..6ee3a934
--- /dev/null
+++ b/proxy/PluginVC.h
@@ -0,0 +1,270 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   PluginVC.h
+
+   Description: Allows bi-directional transfer for data from one
+      continuation to another via a mechanism that impersonates a
+      NetVC.  Should implement all external attributes of NetVConnections.
+      [See PluginVC.cc for further comments]
+
+
+ ****************************************************************************/
+
+#ifndef _PLUGIN_VC_H_
+#define _PLUGIN_VC_H_
+
+#include "Plugin.h"
+#include "P_Net.h"
+#include "ink_atomic.h"
+
+class PluginVCCore;
+
+struct PluginVCState
+{
+  PluginVCState();
+  VIO vio;
+  bool shutdown;
+};
+
+inline
+PluginVCState::PluginVCState():
+vio(),
+shutdown(false)
+{
+}
+
+enum PluginVC_t
+{
+  PLUGIN_VC_UNKNOWN,
+  PLUGIN_VC_ACTIVE,
+  PLUGIN_VC_PASSIVE
+};
+
+// For the id in set_data/get_data
+enum
+{
+  PLUGIN_VC_DATA_LOCAL,
+  PLUGIN_VC_DATA_REMOTE
+};
+
+enum
+{
+  PLUGIN_VC_MAGIC_ALIVE = 0xaabbccdd,
+  PLUGIN_VC_MAGIC_DEAD = 0xaabbdead
+};
+
+class PluginVC:public NetVConnection, public PluginIdentity
+{
+  friend class PluginVCCore;
+public:
+
+    PluginVC();
+   ~PluginVC();
+
+  virtual VIO *do_io_read(Continuation * c = NULL, int64_t nbytes = INT64_MAX, MIOBuffer * buf = 0);
+
+  virtual VIO *do_io_write(Continuation * c = NULL, int64_t nbytes = INT64_MAX, IOBufferReader * buf = 0, bool owner = false);
+
+  virtual void do_io_close(int lerrno = -1);
+  virtual void do_io_shutdown(ShutdownHowTo_t howto);
+
+  // Reenable a given vio.  The public interface is through VIO::reenable
+  virtual void reenable(VIO * vio);
+  virtual void reenable_re(VIO * vio);
+
+  // Timeouts
+  virtual void set_active_timeout(ink_hrtime timeout_in);
+  virtual void set_inactivity_timeout(ink_hrtime timeout_in);
+  virtual void cancel_active_timeout();
+  virtual void cancel_inactivity_timeout();
+  virtual ink_hrtime get_active_timeout();
+  virtual ink_hrtime get_inactivity_timeout();
+
+  // Pure virutal functions we need to compile
+  virtual SOCKET get_socket();
+  virtual void set_local_addr();
+  virtual void set_remote_addr();
+  virtual int set_tcp_init_cwnd(int init_cwnd);
+  virtual void apply_options();
+
+  virtual bool get_data(int id, void *data);
+  virtual bool set_data(int id, void *data);
+
+  virtual PluginVC* get_other_side() { return other_side; }
+
+  //@{ @name Plugin identity.
+  /// Override for @c PluginIdentity.
+  virtual char const* getPluginTag() const { return plugin_tag; }
+  /// Override for @c PluginIdentity.
+  virtual int64_t getPluginId() const { return plugin_id; }
+
+  /// Setter for plugin tag.
+  virtual void setPluginTag(char const* tag) { plugin_tag = tag; }
+  /// Setter for plugin id.
+  virtual void setPluginId(int64_t id) { plugin_id = id; }
+  //@}
+
+  int main_handler(int event, void *data);
+
+private:
+  void process_read_side(bool);
+  void process_write_side(bool);
+  void process_close();
+  void process_timeout(Event * e, int event_to_send, Event ** our_eptr);
+
+  void setup_event_cb(ink_hrtime in, Event ** e_ptr);
+
+  void update_inactive_time();
+  int64_t transfer_bytes(MIOBuffer * transfer_to, IOBufferReader * transfer_from, int64_t act_on);
+
+  uint32_t magic;
+  PluginVC_t vc_type;
+  PluginVCCore *core_obj;
+
+  PluginVC *other_side;
+
+  PluginVCState read_state;
+  PluginVCState write_state;
+
+  bool need_read_process;
+  bool need_write_process;
+
+  volatile bool closed;
+  Event *sm_lock_retry_event;
+  Event *core_lock_retry_event;
+
+  bool deletable;
+  int reentrancy_count;
+
+  ink_hrtime active_timeout;
+  Event *active_event;
+
+  ink_hrtime inactive_timeout;
+  ink_hrtime inactive_timeout_at;
+  Event *inactive_event;
+
+  char const* plugin_tag;
+  int64_t plugin_id;
+};
+
+class PluginVCCore:public Continuation
+{
+  friend class PluginVC;
+public:
+    PluginVCCore();
+   ~PluginVCCore();
+
+  static PluginVCCore *alloc();
+  void init();
+  void set_accept_cont(Continuation * c);
+
+  int state_send_accept(int event, void *data);
+  int state_send_accept_failed(int event, void *data);
+
+  void attempt_delete();
+
+  PluginVC *connect();
+  Action *connect_re(Continuation * c);
+  void kill_no_connect();
+
+  /// Set the active address.
+  void set_active_addr(
+                       in_addr_t ip, ///< IPv4 address in host order.
+                       int port ///< IP Port in host order.
+                       );
+  /// Set the active address and port.
+  void set_active_addr(
+                       sockaddr const *ip ///< Address and port used.
+                       );
+  /// Set the passive address.
+  void set_passive_addr(
+                        in_addr_t ip, ///< IPv4 address in host order.
+                        int port ///< IP port in host order.
+                        );
+  /// Set the passive address.
+  void set_passive_addr(
+                        sockaddr const* ip ///< Address and port.
+                        );
+
+  void set_active_data(void *data);
+  void set_passive_data(void *data);
+
+  void set_transparent(bool passive_side, bool active_side);
+
+  /// Set the plugin ID for the internal VCs.
+  void set_plugin_id(int64_t id);
+  /// Set the plugin tag for the internal VCs.
+  void set_plugin_tag(char const* tag);
+
+  // The active vc is handed to the initiator of
+  //   connection.  The passive vc is handled to
+  //   receiver of the connection
+  PluginVC active_vc;
+  PluginVC passive_vc;
+private:
+
+  void destroy();
+
+  Continuation *connect_to;
+  bool connected;
+
+  MIOBuffer *p_to_a_buffer;
+  IOBufferReader *p_to_a_reader;
+
+  MIOBuffer *a_to_p_buffer;
+  IOBufferReader *a_to_p_reader;
+
+  IpEndpoint passive_addr_struct;
+  IpEndpoint active_addr_struct;
+
+  void *passive_data;
+  void *active_data;
+
+  static vint32 nextid;
+  unsigned id;
+};
+
+inline
+PluginVCCore::PluginVCCore():
+active_vc(),
+passive_vc(),
+connect_to(NULL),
+connected(false),
+p_to_a_buffer(NULL),
+p_to_a_reader(NULL),
+a_to_p_buffer(NULL),
+a_to_p_reader(NULL),
+passive_data(NULL),
+active_data(NULL),
+id(0)
+{
+  memset(&active_addr_struct, 0, sizeof active_addr_struct);
+  memset(&passive_addr_struct, 0, sizeof passive_addr_struct);
+
+  id = ink_atomic_increment(&nextid, 1);
+}
+
+#endif
diff --git a/proxy/Prefetch.cc b/proxy/Prefetch.cc
new file mode 100644
index 00000000..c1d2b95c
--- /dev/null
+++ b/proxy/Prefetch.cc
@@ -0,0 +1,2277 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#include "Prefetch.h"
+#include "HdrUtils.h"
+#include "HttpCompat.h"
+#include <records/I_RecHttp.h>
+#include <ts/IpMapConf.h>
+
+#ifdef PREFETCH
+
+struct html_tag prefetch_allowable_html_tags[] = {
+  //All embedded objects (fetched by the browser without requiring a click)
+  //should be here
+  //{ "a", "href"},   /* NOT USED */
+  {"img", "src"},
+  {"body", "background"},
+  {"frame", "src"},
+  {"fig", "src"},
+  {"applet", "code"},
+  {"script", "src"},
+  {"embed", "src"},
+  {"td", "background"},
+  {"base", "href"},             // special handling
+  {"meta", "content"},          // special handling
+  //{ "area", "href"},  //used for testing parser
+  {"input", "src"},
+  {"link", "href"},
+  {NULL, NULL}
+};
+
+// this attribute table is hard coded. It has to be the same size as
+// the prefetch_allowable_html_tags table
+struct html_tag prefetch_allowable_html_attrs[] = {
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {NULL, NULL},
+  {"rel", "stylesheet"},        // We want to prefetch the .css files that are common; make sure this matches {"link", "href"}
+  {NULL, NULL}
+};
+
+static const char *PREFETCH_FIELD_RECURSION;
+static int PREFETCH_FIELD_LEN_RECURSION;
+
+PrefetchProcessor prefetchProcessor;
+KeepAliveConnTable *g_conn_table;
+
+static int prefetch_udp_fd = 0;
+static int32_t udp_seq_no;
+
+TSPrefetchBlastData const UDP_BLAST_DATA = { TS_PREFETCH_UDP_BLAST };
+TSPrefetchBlastData const TCP_BLAST_DATA = { TS_PREFETCH_TCP_BLAST };
+
+#define PrefetchEstablishStaticConfigStringAlloc(_ix,_n) \
+  REC_EstablishStaticConfigStringAlloc(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, prefetch_config_cb, NULL)
+
+#define PrefetchEstablishStaticConfigLongLong(_ix,_n) \
+  REC_EstablishStaticConfigInteger(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, prefetch_config_cb, NULL)
+
+#define PrefetchEstablishStaticConfigFloat(_ix,_n) \
+  REC_EstablishStaticConfigFloat(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, prefetch_config_cb, NULL)
+
+#define PrefetchEstablishStaticConfigByte(_ix,_n) \
+  REC_EstablishStaticConfigByte(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, prefetch_config_cb, NULL)
+
+static inline uint32_t
+get_udp_seq_no()
+{
+  return ink_atomic_increment(&udp_seq_no, 1);
+}
+
+static inline void
+setup_udp_header(char *header, uint32_t seq_no, uint32_t pkt_no, bool last_pkt)
+{
+  uint32_t *hdr = (uint32_t *) header;
+  hdr[0] = 0;
+  hdr[1] = htonl(seq_no);
+  hdr[2] = htonl((last_pkt ? PRELOAD_UDP_LAST_PKT_FLAG : 0) | (pkt_no & PRELOAD_UDP_PKT_NUM_MASK));
+}
+
+static inline void
+setup_object_header(char *header, int64_t size, bool url_promise)
+{
+  uint32_t *hdr = (uint32_t *) header;
+  hdr[0] = htonl(size);
+  hdr[1] = 0;                   //we are not pinning
+  hdr[2] = (url_promise) ? htonl(PRELOAD_HDR_URL_PROMISE_FLAG) : 0;
+}
+
+// Raghu's info about domain extraction
+inline const char *
+findDomainFromHost(const char *host, int host_len, bool & no_dot)
+{
+  const char *h_cur = host + host_len - 1;
+
+  if (host_len > 4) {
+    // checking for .com .edu .net .org .gov .mil .int
+    h_cur = host + host_len - 4;
+    if (*h_cur == '.') {
+      // convert to lower case
+      char c3 = *(h_cur + 1);
+      char c1 = (c3 >= 'A' && c3 <= 'Z') ? (c3 + 'a' - 'A') : c3;
+      c3 = *(h_cur + 2);
+      char c2 = (c3 >= 'A' && c3 <= 'Z') ? (c3 + 'a' - 'A') : c3;
+      c3 = *(h_cur + 3);
+      if (c3 >= 'A' && c3 <= 'Z')
+        c3 += 'a' - 'A';
+
+      // there is a high posibility that the postfix is one of the seven
+      if ((c1 == 'c' && c2 == 'o' && c3 == 'm') ||
+          (c1 == 'e' && c2 == 'd' && c3 == 'u') ||
+          (c1 == 'n' && c2 == 'e' && c3 == 't') ||
+          (c1 == 'o' && c2 == 'r' && c3 == 'g') ||
+          (c1 == 'g' && c2 == 'o' && c3 == 'v') ||
+          (c1 == 'm' && c2 == 'i' && c3 == 'l') || (c1 == 'i' && c2 == 'n' && c3 == 't')) {
+        h_cur--;
+
+        while (h_cur != host) {
+          if (*h_cur == '.')
+            break;
+          h_cur--;
+        }
+        if (h_cur != host) {
+          // found a '.'
+          h_cur++;
+        } else if (*h_cur == '.')
+          return NULL;
+
+        return h_cur;
+      }
+    }
+  }
+  // for non-top level domains, require the first char is not '.' and
+  // two '.' minimum, e.g. abc.va.us
+  int num_dots = 0;
+  while (h_cur != host) {
+    if (*h_cur == '.') {
+      num_dots++;
+      if (num_dots == 3) {
+        h_cur++;
+        return h_cur;
+      }
+    }
+    h_cur--;
+  }
+
+  if (num_dots < 2 || *host == '.') {
+    if (num_dots == 0)
+      no_dot = true;
+    return NULL;
+  } else
+    return h_cur;
+}
+
+static int
+normalize_url(char *url, int *len)
+{
+  /* returns > 0 if the url is modified */
+
+  char *p, *root, *end = url + len[0];
+  int modified = 0;             // most of the time we don't modify the url.
+
+  enum
+  {
+    NONE,
+    FIRST_DOT,
+    SECOND_DOT,
+    SLASH
+  } state;
+
+  if (!(p = strstr(url, "://")))
+    return -1;
+  p += 3;
+
+  //get to the first slash:
+  root = (p = strchr(p, '/'));
+
+  if (!root)
+    return 0;
+
+  state = SLASH;
+
+  while (++p <= end) {
+
+    switch (p[0]) {
+
+    case '\0':
+    case '/':
+      switch (state) {
+
+      case SLASH:              // "//" => "/"
+        if (p[0]) {
+          modified = 1;
+          p[0] = 0;
+        }
+        break;
+
+      case FIRST_DOT:          // "/./" => "/"
+        modified = 1;
+        p[0] = (p[-1] = 0);
+        break;
+
+      case SECOND_DOT:{        // "/dir/../" or "/../" => "/"
+          modified = 1;
+          p[0] = (p[-1] = (p[-2] = 0));
+
+          char *dir = p - 3;
+          while (dir[0] == 0 && dir > root)
+            dir--;
+
+          ink_assert(dir[0] == '/');
+          if (dir > root && dir[0] == '/') {
+            do {
+              dir[0] = 0;
+            } while (*--dir != '/');
+          }
+        }
+        break;
+      default:                 /* NONE */ ;
+      };                        /* end of switch (state) */
+
+      state = SLASH;
+      break;
+
+    case '.':
+      switch (state) {
+      case SLASH:
+        state = FIRST_DOT;
+        break;
+      case FIRST_DOT:
+        state = SECOND_DOT;
+        break;
+      default:
+        state = NONE;
+      }
+      break;
+
+    default:
+      state = NONE;
+    }
+  }
+
+  if (modified) {
+    //ok, now remove all the 0s in between
+    p = ++root;
+
+    while (p < end) {
+      if (p[0]) {
+        *root++ = p[0];
+      } else
+        len[0]--;
+      p++;
+    }
+    *root = 0;
+    return 1;
+  }
+
+  return 0;
+}
+
+static PrefetchConfiguration *prefetch_config;
+ClassAllocator<PrefetchUrlEntry> prefetchUrlEntryAllocator("prefetchUrlEntryAllocator");
+
+#define IS_STATUS_REDIRECT(status) (prefetch_config->redirection > 0 &&\
+				       (((status) == HTTP_STATUS_MOVED_PERMANENTLY) ||\
+                                        ((status) == HTTP_STATUS_MOVED_TEMPORARILY) ||\
+                                        ((status) == HTTP_STATUS_SEE_OTHER) ||\
+                                        (((status) == HTTP_STATUS_TEMPORARY_REDIRECT))))
+
+struct PrefetchConfigCont;
+typedef int (PrefetchConfigCont::*PrefetchConfigContHandler) (int, void *);
+struct PrefetchConfigCont:public Continuation
+{
+public:
+  PrefetchConfigCont(ProxyMutex * m)
+  : Continuation(m)
+{
+  SET_HANDLER((PrefetchConfigContHandler) & PrefetchConfigCont::conf_update_handler);
+}
+  int conf_update_handler(int event, void *edata);
+};
+
+static Ptr<ProxyMutex> prefetch_reconfig_mutex;
+
+/** Used to free old PrefetchConfiguration data. */
+struct PrefetchConfigFreerCont;
+typedef int (PrefetchConfigFreerCont::*PrefetchConfigFreerContHandler) (int, void *);
+
+struct PrefetchConfigFreerCont: public Continuation
+{
+  PrefetchConfiguration *p;
+  int freeEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    Debug("Prefetch", "Deleting old Prefetch config after change");
+    delete p;
+    delete this;
+    return EVENT_DONE;
+  }
+  PrefetchConfigFreerCont(PrefetchConfiguration * ap):Continuation(new_ProxyMutex()), p(ap)
+  {
+    SET_HANDLER((PrefetchConfigFreerContHandler) & PrefetchConfigFreerCont::freeEvent);
+  }
+};
+
+int
+PrefetchConfigCont::conf_update_handler(int /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  Debug("Prefetch", "Handling Prefetch config change");
+
+  PrefetchConfiguration *new_prefetch_config = new PrefetchConfiguration;
+  if (new_prefetch_config->readConfiguration() == 0) {
+    // switch the prefetch_config
+    eventProcessor.schedule_in(new PrefetchConfigFreerCont(prefetch_config), PREFETCH_CONFIG_UPDATE_TIMEOUT, ET_TASK);
+    ink_atomic_swap(&prefetch_config, new_prefetch_config);
+  } else {
+    // new config construct error, we should not use the new config
+    Debug("Prefetch", "New config in ERROR, keeping the old config");
+    eventProcessor.schedule_in(new PrefetchConfigFreerCont(new_prefetch_config), PREFETCH_CONFIG_UPDATE_TIMEOUT, ET_TASK);
+  }
+
+  delete this;
+  return EVENT_DONE;
+}
+
+static int
+prefetch_config_cb(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                   RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  INK_MEMORY_BARRIER;
+
+  eventProcessor.schedule_in(new PrefetchConfigCont(prefetch_reconfig_mutex), HRTIME_SECONDS(1), ET_TASK);
+  return 0;
+}
+
+PrefetchTransform::PrefetchTransform(HttpSM *sm, HTTPHdr *resp)
+  : INKVConnInternal(NULL, reinterpret_cast<TSMutex>((ProxyMutex*)sm->mutex)),
+    m_output_buf(NULL), m_output_vio(NULL), m_sm(sm)
+{
+  refcount_inc();
+
+  HTTPHdr *request = &sm->t_state.hdr_info.client_request;
+  url = request->url_get()->string_get(NULL, NULL);
+
+  html_parser.Init(url, prefetch_config->html_tags_table, prefetch_config->html_attrs_table);
+
+  SET_HANDLER(&PrefetchTransform::handle_event);
+
+  Debug("PrefetchParser", "Created: transform for %s\n", url);
+
+  memset(&hash_table[0], 0, HASH_TABLE_LENGTH * sizeof(hash_table[0]));
+
+  udp_url_list = blasterUrlListAllocator.alloc();
+  udp_url_list->init(UDP_BLAST_DATA, prefetch_config->url_buffer_timeout, prefetch_config->url_buffer_size);
+  tcp_url_list = blasterUrlListAllocator.alloc();
+  tcp_url_list->init(TCP_BLAST_DATA, prefetch_config->url_buffer_timeout, prefetch_config->url_buffer_size);
+
+  //extract domain
+  host_start = request->url_get()->host_get(&host_len);
+
+  if (!host_start || !host_len)
+    host_start = request->value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &host_len);
+
+  no_dot_in_host = false;
+  if (host_start && host_len) {
+    domain_end = host_start + (host_len - 1);
+    domain_start = findDomainFromHost(host_start, host_len, no_dot_in_host);
+  } else
+    domain_start = 0;
+
+  // Check for redirection and redirect get the redirect URL before parsing the
+  // body of the redirect.
+  redirect(resp);
+}
+
+PrefetchTransform::~PrefetchTransform()
+{
+  //inform the lists that there no more urls left.
+  this_ethread()->schedule_imm_local(udp_url_list);
+  this_ethread()->schedule_imm_local(tcp_url_list);
+
+  Debug("PrefetchParserURLs", "Unique URLs 0x%p (%s):\n", this, url);
+  int nurls = 0;
+  for (int i = 0; i < HASH_TABLE_LENGTH; i++) {
+    PrefetchUrlEntry *e = hash_table[i];
+    while (e) {
+      Debug("PrefetchParserURLs", "(0x%p) %d: %s\n", this, i, e->url);
+      nurls++;
+      PrefetchUrlEntry *next = e->hash_link;
+      e->free();
+      e = next;
+    }
+  }
+
+  Debug("PrefetchParserURLs", "Number of embedded objects extracted for %s: %d\n", url, nurls);
+
+  if (m_output_buf)
+    free_MIOBuffer(m_output_buf);
+  ats_free(url);
+}
+
+int
+PrefetchTransform::handle_event(int event, void *edata)
+{
+  handle_event_count(event);
+
+  if (m_closed) {
+    if (m_deletable) {
+      Debug("PrefetchParser", "PrefetchTransform free(): %" PRId64"", m_output_vio ? m_output_vio->ndone : 0);
+      if (m_output_buf) {
+        free_MIOBuffer(m_output_buf);
+        m_output_buf = 0;
+      }
+      Debug("Prefetch", "Freeing after closed %p", this);
+      free();
+    }
+  } else {
+    switch (event) {
+    case VC_EVENT_ERROR:
+      m_write_vio._cont->handleEvent(VC_EVENT_ERROR, &m_write_vio);
+      break;
+
+    case VC_EVENT_WRITE_COMPLETE:
+
+      Debug("Prefetch", "got write_complete %p", this);
+      ink_assert(m_output_vio == (VIO *) edata);
+
+      ink_assert(m_write_vio.ntodo() == 0);
+
+      m_output_vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+      break;
+
+    case VC_EVENT_WRITE_READY:
+    default:{
+
+        if (!m_output_vio) {
+          m_output_buf = new_empty_MIOBuffer();
+          m_output_reader = m_output_buf->alloc_reader();
+          m_output_vio = m_output_vc->do_io_write(this, INT64_MAX, m_output_reader);
+        }
+        // If the write vio is null, it means it doesn't want
+        // to get anymore event (WRITE_READY or WRITE_COMPLETE)
+        // It also means we're done reading
+        if (m_write_vio.op == VIO::NONE) {
+          m_output_vio->nbytes = m_write_vio.ndone;
+          m_output_vio->reenable();
+          return 0;
+        }
+
+        ink_assert(m_output_vc != NULL);
+
+        MUTEX_TRY_LOCK(trylock, m_write_vio.mutex, this_ethread());
+        if (!trylock) {
+          retry(10);
+          return 0;
+        }
+
+        if (m_closed) {
+          return 0;
+        }
+
+        int64_t towrite = m_write_vio.ntodo();
+
+        if (towrite > 0) {
+          IOBufferReader *buf_reader = m_write_vio.get_reader();
+          int64_t avail = buf_reader->read_avail();
+
+          if (towrite > avail) {
+            towrite = avail;
+          }
+
+          if (towrite > 0) {
+            Debug("PrefetchParser", "handle_event() " "writing %" PRId64" bytes to output", towrite);
+
+            //Debug("PrefetchParser", "Read avail before = %d\n", avail);
+
+            m_output_buf->write(buf_reader, towrite);
+
+            parse_data(buf_reader);
+
+            //buf_reader->consume (towrite);
+            m_write_vio.ndone += towrite;
+          }
+        }
+
+        if (m_write_vio.ntodo() > 0) {
+          if (towrite > 0) {
+            m_output_vio->reenable();
+            m_write_vio._cont->handleEvent(VC_EVENT_WRITE_READY, &m_write_vio);
+          }
+        } else {
+          m_output_vio->nbytes = m_write_vio.ndone;
+          m_output_vio->reenable();
+          m_write_vio._cont->handleEvent(VC_EVENT_WRITE_COMPLETE, &m_write_vio);
+        }
+
+        break;
+      }
+    }
+  }
+  return 0;
+}
+
+int
+PrefetchTransform::redirect(HTTPHdr *resp)
+{
+  HTTPHdr *req = NULL;
+  int response_status = 0;
+  char *req_url = NULL;
+  char *redirect_url = NULL;
+
+  /* Check for responses validity. If the response is valid, determine the status of the response.
+     We need to find out if there was a redirection (301, 302, 303, 307).
+   */
+  if ((resp != NULL) && (resp->valid())) {
+    response_status = resp->status_get();
+  } else {
+    response_status = -1;
+  }
+
+  /* OK, so we got the response. Now if the response is a redirect we have to check if we also
+     got a Location: header. This indicates the new location where our object is located.
+     If refirect_url was not found, letz falter back to just a recursion. Since
+     we might find the url in the body.
+   */
+  if (resp->presence(MIME_PRESENCE_LOCATION)) {
+    int redirect_url_len = 0;
+    const char *tmp_url = resp->value_get(MIME_FIELD_LOCATION, MIME_LEN_LOCATION, &redirect_url_len);
+
+    redirect_url = (char *)alloca(redirect_url_len + 1);
+    ink_strlcpy(redirect_url, tmp_url, redirect_url_len + 1);
+    Debug("PrefetchTransform", "redirect_url = %s\n", redirect_url);
+  } else {
+    response_status = -1;
+  }
+
+
+
+
+  if (IS_STATUS_REDIRECT(response_status)) {
+    if (redirect_url) {
+
+      req = &m_sm->t_state.hdr_info.client_request;
+      req_url = req->url_get()->string_get(NULL, NULL);
+
+      Debug("PrefetchTransform", "Received response status = %d\n", response_status);
+      Debug("PrefetchTransform", "Redirect from request = %s\n", req_url);
+
+      int location_len = strlen(redirect_url);
+      Debug("PrefetchTransform", "Redirect url to HTTP Hdr Location: \'%s\'\n", redirect_url);
+      if (strncmp(redirect_url, req_url, location_len) == 0) {
+        Debug("PrefetchTransform", "'%s' -> '%s' - Could be a loop. Discontinuing this path.\n", req_url, redirect_url);
+        ats_free(req_url);
+        return 0;
+      }
+
+      PrefetchUrlEntry *entry = hash_add(redirect_url);
+
+      if (!entry) {
+        Debug("PrefetchParserURLs", "Ignoring duplicate url '%s'", redirect_url);
+        ats_free(req_url);
+        return 0;
+      }
+
+      Debug("PrefetchTransform", "Found embedded URL: %s", redirect_url);
+      entry->req_ip = m_sm->t_state.client_info.addr;
+
+      PrefetchBlaster *blaster = prefetchBlasterAllocator.alloc();
+      blaster->init(entry, &m_sm->t_state.hdr_info.client_request, this);
+      ats_free(req_url);
+    }
+  }
+  return 0;
+}
+
+int
+PrefetchTransform::parse_data(IOBufferReader *reader)
+{
+  char *url_start = NULL, *url_end = NULL;
+
+  while (html_parser.ParseHtml(reader, &url_start, &url_end)) {
+
+    PrefetchUrlEntry *entry = hash_add(url_start);
+
+    if (!entry) {
+      //Debug("PrefetchParserURLs", "Duplicate URL: %s", url_start);
+      continue;
+    }
+    //Debug("PrefetchParserURLs", "Found embedded URL: %s", url_start);
+    ats_ip_copy(&entry->req_ip, &m_sm->t_state.client_info.addr);
+
+    PrefetchBlaster *blaster = prefetchBlasterAllocator.alloc();
+    blaster->init(entry, &m_sm->t_state.hdr_info.client_request, this);
+  }
+
+  return 0;
+}
+
+PrefetchUrlEntry *
+PrefetchTransform::hash_add(char *s)
+{
+  uint32_t index = 0;
+  int str_len = strlen(s);
+
+  if (normalize_url(s, &str_len) > 0)
+    Debug("PrefetchParserURLs", "Normalized URL: %s\n", s);
+
+
+  INK_MD5 md5;
+  md5.encodeBuffer(s, str_len);
+  index = md5.word(1) % HASH_TABLE_LENGTH;
+
+  PrefetchUrlEntry **e = &hash_table[index];
+  for (; *e; e = &(*e)->hash_link)
+    if (strcmp((*e)->url, s) == 0)
+      return NULL;
+
+  *e = prefetchUrlEntryAllocator.alloc();
+  (*e)->init(ats_strdup(s), md5);
+
+  return *e;
+}
+
+
+#define IS_RECURSIVE_PREFETCH(req_ip) \
+  (prefetch_config->max_recursion > 0 && ats_is_ip_loopback(&req_ip))
+
+static void
+check_n_attach_prefetch_transform(HttpSM *sm, HTTPHdr *resp, bool from_cache)
+{
+  INKVConnInternal *prefetch_trans;
+  ip_text_buffer client_ipb;
+
+  IpEndpoint client_ip = sm->t_state.client_info.addr;
+
+  // we depend on this to setup @a client_ipb for all subsequent Debug().
+  Debug("PrefetchParser", "Checking response for request from %s\n",
+    ats_ip_ntop(&client_ip, client_ipb, sizeof(client_ipb))
+  );
+
+  unsigned int rec_depth = 0;
+  HTTPHdr *request = &sm->t_state.hdr_info.client_request;
+
+  if (IS_RECURSIVE_PREFETCH(client_ip)) {
+    rec_depth = request->value_get_int(PREFETCH_FIELD_RECURSION, PREFETCH_FIELD_LEN_RECURSION);
+    rec_depth++;
+
+    Debug("PrefetchTemp", "recursion: %d", rec_depth);
+
+    if (rec_depth > prefetch_config->max_recursion) {
+      Debug("PrefetchParserRecursion", "Recursive parsing is not done "
+            "since recursion depth(%d) is greater than max allowed (%d)", rec_depth, prefetch_config->max_recursion);
+      return;
+    }
+  } else if (!prefetch_config->ip_map.contains(&client_ip)) {
+    Debug("PrefetchParser", "client (%s) does not match any of the "
+      "prefetch_children mentioned in configuration\n", client_ipb);
+    return;
+  }
+
+  if (prefetch_config->max_recursion > 0) {
+    request->value_set_int(PREFETCH_FIELD_RECURSION, PREFETCH_FIELD_LEN_RECURSION, rec_depth);
+  }
+
+  int c_type_len;
+  const char *c_type = resp->value_get(MIME_FIELD_CONTENT_TYPE,
+                                       MIME_LEN_CONTENT_TYPE, &c_type_len);
+
+  if ((c_type == NULL) || strncmp("text/html", c_type, 9) != 0) {
+    Debug("PrefetchParserCT", "Content type is not text/html.. skipping\n");
+    return;
+  }
+
+  /* skip if it is encoded */
+  c_type = resp->value_get(MIME_FIELD_CONTENT_ENCODING, MIME_LEN_CONTENT_ENCODING, &c_type_len);
+  if (c_type) {
+    char type[64];
+    memcpy(type, c_type, c_type_len);
+    type[c_type_len] = 0;
+    Debug("PrefetchParserCT", "Content is encoded with %s .. skipping\n", type);
+    return;
+  }
+
+  Debug("PrefetchParserCT", "Content type is text/html\n");
+
+  if (prefetch_config->pre_parse_hook) {
+    TSPrefetchInfo info;
+
+    HTTPHdr *req = &sm->t_state.hdr_info.client_request;
+    info.request_buf = reinterpret_cast<TSMBuffer>(req);
+    info.request_loc = reinterpret_cast<TSMLoc>(req->m_http);
+    info.response_buf = reinterpret_cast<TSMBuffer>(resp);
+    info.response_loc = reinterpret_cast<TSMLoc>(resp->m_http);
+
+    ats_ip_copy(ats_ip_sa_cast(&info.client_ip), &client_ip);
+    info.embedded_url = 0;
+    info.present_in_cache = from_cache;
+    ink_zero(info.url_blast);
+    ink_zero(info.url_response_blast);
+
+    info.object_buf = 0;
+    info.object_buf_reader = 0;
+    info.object_buf_status = TS_PREFETCH_OBJ_BUF_NOT_NEEDED;
+
+    int ret = (prefetch_config->pre_parse_hook) (TS_PREFETCH_PRE_PARSE_HOOK, &info);
+    if (ret == TS_PREFETCH_DISCONTINUE)
+      return;
+  }
+  //now insert the parser
+  prefetch_trans = new PrefetchTransform(sm, resp);
+
+  if (prefetch_trans) {
+    Debug("PrefetchParser", "Adding Prefetch Parser 0x%p\n", prefetch_trans);
+    TSHttpTxnHookAdd(reinterpret_cast<TSHttpTxn>(sm), TS_HTTP_RESPONSE_TRANSFORM_HOOK, reinterpret_cast<TSCont>(prefetch_trans));
+
+    DUMP_HEADER("PrefetchParserHdrs", &sm->t_state.hdr_info.client_request, (int64_t)0,
+                "Request Header given for  Prefetch Parser");
+  }
+}
+
+
+static int
+PrefetchPlugin(TSCont /* contp ATS_UNUSED */, TSEvent event, void *edata)
+{
+  HttpSM *sm = (HttpSM *) edata;
+  HTTPHdr *resp = 0;
+  bool from_cache = false;
+
+  switch (event) {
+
+  case TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE:{
+
+      Debug("PrefetchPlugin", "Received TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK " "event (sm = 0x%p)\n", sm);
+      int status;
+      TSHttpTxnCacheLookupStatusGet((TSHttpTxn) sm, &status);
+
+      if (status == TS_CACHE_LOOKUP_HIT_FRESH) {
+        Debug("PrefetchPlugin", "Cached object is fresh\n");
+        resp = sm->t_state.cache_info.object_read->response_get();
+        from_cache = true;
+      } else {
+        Debug("PrefetchPlugin", "Cache lookup did not succeed\n");
+      }
+
+      break;
+    }
+  case TS_EVENT_HTTP_READ_RESPONSE_HDR:
+    Debug("PrefetchPlugin", "Received TS_EVENT_HTTP_READ_RESPONSE_HDR " "event (sm = 0x%p)\n", sm);
+    resp = &sm->t_state.hdr_info.server_response;
+
+    break;
+
+  default:
+    Debug("PrefetchPlugin", "Error: Received unexpected event\n");
+    return 0;
+  }
+
+  if (resp && resp->valid())
+    check_n_attach_prefetch_transform(sm, resp, from_cache);
+
+  TSHttpTxnReenable(reinterpret_cast<TSHttpTxn>(sm), TS_EVENT_HTTP_CONTINUE);
+
+  //Debug("PrefetchPlugin", "Returning after check_n_attach_prefetch_transform()\n");
+
+  return 0;
+}
+
+void
+PrefetchProcessor::start()
+{
+  // we need to create the config and register all config callbacks
+  // first.
+  prefetch_reconfig_mutex = new_ProxyMutex();
+  prefetch_config = new PrefetchConfiguration;
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.prefetch_enabled", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.http.server_port", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.child_port", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.url_buffer_size", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.url_buffer_timeout", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.keepalive_timeout", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.push_cached_objects", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.max_object_size", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.max_recursion", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.redirection", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.default_url_proto", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.default_url_proto", prefetch_config_cb, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.prefetch.config_file", prefetch_config_cb, NULL);
+
+  prefetch_config->readConfiguration();
+
+  if (prefetch_config->prefetch_enabled) {
+
+    PREFETCH_FIELD_RECURSION = "@InkPrefetch";
+    PREFETCH_FIELD_LEN_RECURSION = strlen(PREFETCH_FIELD_RECURSION);
+    //hdrtoken_wks_to_length(PREFETCH_FIELD_RECURSION);
+
+    g_conn_table = new KeepAliveConnTable;
+    g_conn_table->init();
+
+    udp_seq_no = this_ethread()->generator.random();
+
+    prefetch_udp_fd = socketManager.socket(PF_INET, SOCK_DGRAM, 0);
+
+    TSCont contp = TSContCreate(PrefetchPlugin, NULL);
+    TSHttpHookAdd(TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK, contp);
+    TSHttpHookAdd(TS_HTTP_READ_RESPONSE_HDR_HOOK, contp);
+
+    Note("PrefetchProcessor: Started the prefetch processor\n");
+  } else {
+    Debug("PrefetchProcessor", "Prefetch processor is not started\n");
+  }
+
+
+}
+
+//Blaster
+
+ClassAllocator<BlasterUrlList> blasterUrlListAllocator("blasterUrlList");
+
+int
+BlasterUrlList::handleEvent(int event, void *data)
+{
+  switch (event) {
+
+  case EVENT_INTERVAL:
+    ink_assert(list_head);
+    if (list_head) {
+      invokeUrlBlaster();
+    }
+    action = NULL;
+    break;
+
+  case EVENT_IMMEDIATE:
+    /*
+       PrefetchTransform informed us not to expect any more URLs
+       This is used so that we dont wait for timeout when the mtu has not filled
+       but theren't any URLs left in the page.
+     */
+    if (list_head) {
+      action->cancel();
+      action = NULL;
+      invokeUrlBlaster();
+    }
+    free();                     // we need to call free because PrefetchTransform does not.
+    break;
+
+  case PREFETCH_EVENT_SEND_URL:{
+      PrefetchUrlEntry *entry = ((PrefetchUrlEntry *) data)->assign();
+
+      if (list_head) {
+        action->cancel();
+        action = NULL;
+        if ((cur_len + entry->len) > mtu) {
+          invokeUrlBlaster();
+        }
+      }
+
+      entry->blaster_link = list_head;  //will be reversed before sending
+      list_head = entry;
+      cur_len += entry->len;
+
+      if (cur_len >= mtu || timeout == 0) {
+        invokeUrlBlaster();
+      } else {
+        action = this_ethread()->schedule_in(this, HRTIME_MSECONDS(timeout));
+      }
+
+      break;
+    }
+
+  default:
+    ink_assert(!"not reached");
+  }
+
+  return EVENT_DONE;
+}
+
+ClassAllocator<PrefetchUrlBlaster> prefetchUrlBlasterAllocator("prefetchUrlBlaster");
+
+inline void
+PrefetchUrlBlaster::free()
+{
+  if (action)
+    action->cancel();
+
+  //free the list;
+  while (url_head) {
+    PrefetchUrlEntry *next = url_head->blaster_link;
+    this_ethread()->schedule_imm(url_head->resp_blaster);
+    url_head->free();
+    url_head = next;
+  }
+
+  mutex.clear();
+  prefetchUrlBlasterAllocator.free(this);
+}
+
+void
+PrefetchUrlBlaster::writeBuffer(MIOBuffer *buf)
+{
+  //reverse the list:
+  PrefetchUrlEntry *entry = NULL;
+  //int total_len = 0;
+  while (url_head) {
+    //total_len += url_head->len;
+
+    PrefetchUrlEntry *next = url_head->blaster_link;
+    url_head->blaster_link = entry;
+    entry = url_head;
+    url_head = next;
+  }
+  url_head = entry;
+
+  int nurls = 0;
+  //write it:
+  while (entry) {
+    buf->write(entry->url, entry->len);
+    entry = entry->blaster_link;
+    nurls++;
+  }
+  Debug("PrefetchBlasterUrlList", "found %d urls in the list", nurls);
+  return;
+}
+
+int
+PrefetchUrlBlaster::udpUrlBlaster(int event, void *data)
+{
+  switch (event) {
+
+  case SIMPLE_EVENT_EVENTS_START:{
+      SET_HANDLER((EventHandler) (&PrefetchUrlBlaster::udpUrlBlaster));
+
+      MIOBuffer *buf = new_MIOBuffer();
+      IOBufferReader *reader = buf->alloc_reader();
+
+      int udp_hdr_len = (TS_PREFETCH_TCP_BLAST == blast.type) ? 0 : PRELOAD_UDP_HEADER_LEN;
+
+      buf->fill(udp_hdr_len + PRELOAD_HEADER_LEN);
+
+      writeBuffer(buf);
+
+      if (TS_PREFETCH_TCP_BLAST == blast.type) {
+        setup_object_header(reader->start(), reader->read_avail(), true);
+        g_conn_table->append(url_head->child_ip, buf, reader);
+        free();
+      } else {
+        IOBufferBlock *block = buf->get_current_block();
+        ink_assert(reader->read_avail() == block->read_avail());
+        setup_udp_header(block->start(), get_udp_seq_no(), 0, true);
+        setup_object_header(block->start() + PRELOAD_UDP_HEADER_LEN, block->read_avail() - PRELOAD_UDP_HEADER_LEN, true);
+
+        IpEndpoint saddr;
+        ats_ip_copy(&saddr, &url_head->url_multicast_ip) ||
+          ats_ip_copy(&saddr, &url_head->child_ip);
+        ats_ip_port_cast(&saddr.sa) = htons(prefetch_config->stuffer_port);
+
+        udpNet.sendto_re(this, NULL, prefetch_udp_fd, &saddr.sa, sizeof(saddr), block, block->read_avail());
+      }
+      break;
+    }
+
+  case NET_EVENT_DATAGRAM_WRITE_ERROR:
+    Debug("PrefetchBlaster", "Error in sending the url list on UDP (%p)", data);
+  case NET_EVENT_DATAGRAM_WRITE_COMPLETE:
+    free();
+    break;
+  }
+  return EVENT_DONE;
+}
+
+ClassAllocator<PrefetchBlaster> prefetchBlasterAllocator("PrefetchBlasterAllocator");
+
+int
+PrefetchBlaster::init(PrefetchUrlEntry *entry, HTTPHdr *req_hdr, PrefetchTransform *p_trans)
+{
+  mutex = new_ProxyMutex();
+
+  //extract host and the path
+  // by this time, the url is sufficiently error checked..
+  // we will just use sscanf to parse it:
+  //int host_pos=-1, path_pos=-1;
+  int url_len = strlen(entry->url);
+
+  request = new HTTPHdr;
+  request->copy(req_hdr);
+  url_clear(request->url_get()->m_url_impl);    /* BugID: INKqa11148 */
+  //request->url_get()->clear();
+
+  // INKqa12871
+  request->field_delete(MIME_FIELD_HOST, MIME_LEN_HOST);
+  request->field_delete(MIME_FIELD_IF_MATCH, MIME_LEN_IF_MATCH);
+  request->field_delete(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE);
+  request->field_delete(MIME_FIELD_IF_NONE_MATCH, MIME_LEN_IF_NONE_MATCH);
+  request->field_delete(MIME_FIELD_IF_RANGE, MIME_LEN_IF_RANGE);
+  request->field_delete(MIME_FIELD_IF_UNMODIFIED_SINCE, MIME_LEN_IF_UNMODIFIED_SINCE);
+  request->field_delete(MIME_FIELD_CACHE_CONTROL, MIME_LEN_CACHE_CONTROL);
+  // BZ 50540
+  request->field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+
+  int temp;
+  if (request->url_get()->parse(entry->url, url_len) != PARSE_DONE ||
+      request->url_get()->scheme_get(&temp) != URL_SCHEME_HTTP) {
+    Debug("PrefetchParserURLs", "URL parsing failed or scheme is not HTTP " "for %s", entry->url);
+    free();
+    return -1;
+  }
+
+  request->method_set(HTTP_METHOD_GET, HTTP_LEN_GET);
+
+  request->field_delete(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+  request->value_set(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION, "close", 5);
+
+  // INKqa12871
+  if (request->field_find(MIME_FIELD_REFERER, MIME_LEN_REFERER)) {
+    int topurl_len;
+    char *topurl = req_hdr->url_get()->string_get(NULL, &topurl_len);
+    if (topurl) {
+      request->value_set(MIME_FIELD_REFERER, MIME_LEN_REFERER, topurl, topurl_len);
+      ats_free(topurl);
+    }
+  }
+
+  if (request->field_find(MIME_FIELD_AUTHORIZATION, MIME_LEN_AUTHORIZATION)) {
+    int host_len;
+    bool delete_auth;
+    const char *host_start = request->url_get()->host_get(&host_len);
+
+    if (host_start == NULL)
+      delete_auth = true;
+    else {
+      const char *host_end = host_start + host_len - 1;
+      int cmp_len = p_trans->domain_end - p_trans->domain_start + 1;
+
+      if (cmp_len <= 0 || host_len<cmp_len || (host_len> cmp_len && host_start[host_len - cmp_len - 1] != '.') ||    //nbc.com != cnbc.com
+          strncasecmp(p_trans->domain_start, host_end - (cmp_len - 1), cmp_len) != 0) {
+        delete_auth = true;
+      } else
+        delete_auth = false;
+    }
+
+    if (delete_auth)
+      request->field_delete(MIME_FIELD_AUTHORIZATION, MIME_LEN_AUTHORIZATION);
+  }
+  //Should we remove any cookies? Probably yes
+  //We should probably add a referer header.
+  handleCookieHeaders(req_hdr,
+                      &p_trans->m_sm->t_state.hdr_info.server_response,
+                      p_trans->domain_start, p_trans->domain_end,
+                      p_trans->host_start, p_trans->host_len, p_trans->no_dot_in_host);
+
+  // FIXME? ip_len is pretty useless here.
+  int ip_len;
+  const char *ip_str;
+  if (IS_RECURSIVE_PREFETCH(entry->req_ip) &&
+      (ip_str = request->value_get(MIME_FIELD_CLIENT_IP, MIME_LEN_CLIENT_IP, &ip_len))) {
+    ip_text_buffer b;
+    //this is a recursive prefetch. get child ip address from
+    //Client-IP header
+    ink_strlcpy(b, ip_str, sizeof(b));
+    ats_ip_pton(b, &entry->child_ip.sa);
+  } else
+    entry->child_ip = entry->req_ip;
+
+  DUMP_HEADER("PrefetchBlasterHdrs", request, (int64_t)0, "Request Header from Prefetch Blaster");
+
+  url_ent = entry->assign();    //refcount
+  transform = p_trans->assign();
+
+  buf = new_MIOBuffer();
+  reader = buf->alloc_reader();
+
+  SET_HANDLER((EventHandler) (&PrefetchBlaster::handleEvent));
+
+  this_ethread()->schedule_imm(this);
+
+  return EVENT_DONE;
+}
+
+void
+PrefetchBlaster::free()
+{
+  if (serverVC)
+    serverVC->do_io_close();
+
+  if (url_ent)
+    url_ent->free();
+  if (transform)
+    transform->free();
+
+  if (buf)
+    free_MIOBuffer(buf);
+  if (io_block) {
+    io_block->free();
+  }
+
+  if (request) {
+    request->destroy();
+    delete request;
+  }
+
+  mutex.clear();
+  prefetchBlasterAllocator.free(this);
+}
+
+bool
+isCookieUnique(HTTPHdr *req, const char *move_cookie, int move_cookie_len)
+{
+  // another double for loop for multiple Cookie headers
+  MIMEField *o_cookie = req->field_find(MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+  const char *a_raw;
+  int a_raw_len;
+  const char *iter_cookie;
+  int iter_cookie_len;
+  bool equalsign = false;
+
+  if ((a_raw = (const char *) memchr(move_cookie, '=', move_cookie_len)) != NULL) {
+    int tmp_len = (int) (a_raw - move_cookie) + 1;
+    if (tmp_len < move_cookie_len) {
+      equalsign = true;
+      move_cookie_len = tmp_len;
+    }
+  }
+
+  for (; o_cookie; o_cookie = o_cookie->m_next_dup) {
+    a_raw = o_cookie->value_get(&a_raw_len);
+    if (a_raw != NULL && a_raw_len > 0) {
+      StrList a_param_list;
+      Str *a_param;
+
+      HttpCompat::parse_tok_list(&a_param_list, 0, a_raw, a_raw_len, ';');
+      for (a_param = a_param_list.head; a_param; a_param = a_param->next) {
+        iter_cookie = a_param->str;
+        iter_cookie_len = a_param->len;
+
+        if (equalsign) {
+          if (iter_cookie_len > move_cookie_len && memcmp(iter_cookie, move_cookie, move_cookie_len) == 0) {
+            // INKqa11823 id=new to replace id=old
+            return false;
+          }
+        } else {
+          if (iter_cookie_len == move_cookie_len && memcmp(iter_cookie, move_cookie, iter_cookie_len) == 0) {
+            // dupliate - do not add
+            return false;
+          }
+        }
+      }
+    }
+  }
+
+  return true;
+}
+
+inline void
+cookie_debug(const char *level, const char *value, int value_len)
+{
+  if (is_debug_tag_set("PrefetchCookies")) {
+    char *str = (char *)ats_malloc(value_len + 1);
+    memcpy(str, value, value_len);
+    str[value_len] = 0;
+    Debug("PrefetchCookies", "Processing %s value: %s", level, str);
+    ats_free(str);
+  }
+}
+
+// resp_hdr is the server response for the top page
+void
+PrefetchBlaster::handleCookieHeaders(HTTPHdr *req_hdr,
+                                     HTTPHdr *resp_hdr,
+                                     const char *domain_start,
+                                     const char *domain_end, const char *thost_start, int thost_len, bool no_dot)
+{
+  bool add_cookies = true;
+  bool existing_req_cookies = request->valid() && request->presence(MIME_PRESENCE_COOKIE);
+  bool existing_resp_cookies = resp_hdr->valid() && resp_hdr->presence(MIME_PRESENCE_SET_COOKIE);
+  bool default_domain_match;
+  const char *host_start;
+  const char *host_end;
+  int host_len, cmp_len;
+
+  if (!existing_req_cookies && !existing_resp_cookies)
+    return;
+
+  if (!domain_start && (!thost_start || no_dot == false)) {
+    // mising domain name information
+    add_cookies = false;
+    goto Lcheckcookie;
+  }
+
+  host_start = request->url_get()->host_get(&host_len);
+
+  if (!host_start || !host_len)
+    host_start = request->value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &host_len);
+
+  if (!host_start && !host_len) {
+    add_cookies = false;
+    goto Lcheckcookie;
+  }
+
+  host_end = host_start + host_len - 1;
+  if (domain_start) {
+    cmp_len = domain_end - domain_start + 1;
+
+    if (host_len<cmp_len || (host_len> cmp_len && host_start[host_len - cmp_len - 1] != '.') ||      //nbc.com != cnbc.com
+        strncasecmp(domain_start, host_end - (cmp_len - 1), cmp_len) != 0) {
+      add_cookies = false;
+      goto Lcheckcookie;
+    }
+    // Netscape Cookie spec says the default domain is the host name
+    if (thost_len != host_len || strncasecmp(thost_start, host_start, host_len) != 0)
+      default_domain_match = false;
+    else
+      default_domain_match = true;
+  } else {
+    if (host_len != thost_len || strncasecmp(thost_start, host_start, host_len) != 0) {
+      add_cookies = false;
+      goto Lcheckcookie;
+    }
+    default_domain_match = true;
+  }
+
+  if (existing_resp_cookies) {
+    const char *a_raw;
+    int a_raw_len;
+    const char *move_cookie;
+    int move_cookie_len;
+    MIMEField *s_cookie = NULL;
+
+    add_cookies = false;
+    // delete the old Cookie first - INKqa11823
+    request->field_delete(MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+    // for Set-Cookie it is not comma separated, each a_value contains
+    // the value for one Set-Cookie header
+    s_cookie = resp_hdr->field_find(MIME_FIELD_SET_COOKIE, MIME_LEN_SET_COOKIE);
+    for (; s_cookie; s_cookie = s_cookie->m_next_dup) {
+      a_raw = s_cookie->value_get(&a_raw_len);
+      MIMEField *new_cookie = NULL;
+      bool new_cookie_attached = false;
+      StrList a_param_list;
+      Str *a_param;
+      bool first_move;
+      bool domain_match;
+
+      cookie_debug("PrefetchCookies", a_raw, a_raw_len);
+
+      domain_match = default_domain_match;
+      HttpCompat::parse_tok_list(&a_param_list, 0, a_raw, a_raw_len, ';');
+      for (a_param = a_param_list.head; a_param; a_param = a_param->next) {
+        move_cookie = a_param->str;
+        move_cookie_len = a_param->len;
+
+        cookie_debug("Field", move_cookie, move_cookie_len);
+
+        if (!new_cookie) {
+          new_cookie = request->field_create();
+          first_move = true;
+        } else
+          first_move = false;
+
+        if (move_cookie_len > 7 && strncasecmp(move_cookie, "domain=", 7) == 0) {
+          // the Set-cookie header specify the domain name
+          const char *cookie_domain_start = move_cookie + 7;
+          int cookie_domain_len = move_cookie_len - 7;
+          const char *cookie_domain_end = (const char *) (move_cookie + move_cookie_len - 1);
+
+          if (*cookie_domain_start == '"') {
+            // domain=".amazon.com" style
+            if (*cookie_domain_end == '"') {
+              cookie_domain_start++;
+              cookie_domain_end--;
+              cookie_domain_len -= 2;
+              if (cookie_domain_len <= 0)
+                goto Lnotmatch;
+            } else {
+              // invalid fomat, missing trailing quote
+              goto Lnotmatch;
+            }
+          }
+          // remove trailing .
+          while (*cookie_domain_end == '.' && cookie_domain_len > 0)
+            cookie_domain_end--, cookie_domain_len--;
+
+          if (cookie_domain_len <= 0)
+            goto Lnotmatch;
+
+          // matching domain based on RFC2109
+          int prefix_len = host_len - cookie_domain_len;
+          if (host_len <= 0 || prefix_len < 0)
+            goto Lnotmatch;
+
+          if (strncasecmp(host_start + prefix_len, cookie_domain_start, cookie_domain_len) != 0)
+            goto Lnotmatch;
+
+          // make sure that the prefix doesn't contain a '.'
+          if (prefix_len > 0 && memchr(host_start, '.', prefix_len))
+            goto Lnotmatch;
+
+          // Ok, when we get here, it should be a real match as far as
+          //        domain is concerned.
+          // possibly overwrite the default domain matching result
+          domain_match = true;
+          continue;
+        } else if (move_cookie_len > 5 && strncasecmp(move_cookie, "path=", 5) == 0) {
+          const char *cookie_path_start = move_cookie + 5;
+          int cookie_path_len = move_cookie_len - 5;
+          const char *cookie_path_end = (const char *) (move_cookie + move_cookie_len - 1);
+
+          if (cookie_path_len <= 0)
+            goto Lnotmatch;
+
+          if (*cookie_path_start == '/') {
+            cookie_path_start++;
+            cookie_path_len--;
+          }
+
+          if (cookie_path_len == 0) {
+            // a match - "/"
+            continue;
+          }
+
+          if (*cookie_path_end == '/') {
+            cookie_path_end--;
+            cookie_path_len--;
+          }
+
+          if (cookie_path_len == 0) {
+            // invalid format "//"
+            goto Lnotmatch;
+          }
+          // matching path based on RFC2109
+
+          int dest_path_len;
+          const char *dest_path_start = request->url_get()->path_get(&dest_path_len);
+
+          // BZ 49734
+          if (dest_path_start == NULL || dest_path_len == 0) {
+            goto Lnotmatch;
+          }
+
+          if (*dest_path_start == '/') {
+            dest_path_start++;
+            dest_path_len--;
+          }
+
+          if (dest_path_len < cookie_path_len || strncasecmp(dest_path_start, cookie_path_start, cookie_path_len) != 0)
+            goto Lnotmatch;
+
+          // when we get here the path is a match
+        } else if (move_cookie_len > 8 && strncasecmp(move_cookie, "expires=", 8) == 0) {
+          // ignore expires directive for the time being
+          continue;
+        } else {
+          // append the value to the request Cookie header
+          request->field_value_append(new_cookie, move_cookie, move_cookie_len, !first_move, ';');
+        }
+      }
+
+      if (domain_match == false)
+        goto Lnotmatch;
+
+      if (new_cookie && !new_cookie_attached) {
+        new_cookie_attached = true;
+        if (add_cookies == false)
+          add_cookies = true;
+        new_cookie->name_set(request->m_heap, request->m_mime, MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+        request->field_attach(new_cookie);
+      }
+      continue;
+
+    Lnotmatch:
+      if (new_cookie) {
+        if (!new_cookie_attached) {
+          new_cookie->name_set(request->m_heap, request->m_mime, MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+          request->field_attach(new_cookie);
+        }
+        request->field_delete(new_cookie);
+        new_cookie = NULL;
+      }
+    }
+
+    // INKqa11823 - now add the old Cookies back based on the new cookies
+    if (add_cookies && existing_req_cookies) {
+      MIMEField *o_cookie = req_hdr->field_find(MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+      const char *iter_cookie;
+      int iter_cookie_len;
+
+      for (; o_cookie; o_cookie = o_cookie->m_next_dup) {
+        MIMEField *n_cookie = NULL;
+        a_raw = o_cookie->value_get(&a_raw_len);
+        if (a_raw != NULL && a_raw_len > 0) {
+          StrList a_param_list;
+          Str *a_param;
+          bool f_move;
+
+          HttpCompat::parse_tok_list(&a_param_list, 0, a_raw, a_raw_len, ';');
+          for (a_param = a_param_list.head; a_param; a_param = a_param->next) {
+            iter_cookie = a_param->str;
+            iter_cookie_len = a_param->len;
+
+            if (isCookieUnique(request, iter_cookie, iter_cookie_len)) {
+              // this is a unique cookie attribute, ready to add
+              if (n_cookie == NULL) {
+                n_cookie = request->field_create();
+                f_move = true;
+              } else
+                f_move = false;
+
+              request->field_value_append(n_cookie, iter_cookie, iter_cookie_len, !f_move, ';');
+            }
+          }
+
+          if (n_cookie) {
+            n_cookie->name_set(request->m_heap, request->m_mime, MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+            request->field_attach(n_cookie);
+          }
+        }
+      }
+    }
+    // add_cookies now means whether new Cookie headers are created
+    // from the Set-Cookie headers
+    // now also check the existing Cookie headers from the req_hdr
+    add_cookies = add_cookies || existing_req_cookies;
+  }
+
+Lcheckcookie:
+  if (add_cookies == false) {
+    // delete the cookie header, if there is any at all
+    request->field_delete(MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+  }
+
+  DUMP_HEADER("PrefetchCookies", req_hdr, (int64_t)0,
+              "Request Header for the top page used as the base for the new request with Cookies");
+  DUMP_HEADER("PrefetchCookies", resp_hdr, (int64_t)0,
+              "Response Header for the top page used as the base for the new request with Cookies");
+  DUMP_HEADER("PrefetchCookies", request, (int64_t)0, "Request Header with Cookies generated by Prefetch Parser");
+}
+
+int
+PrefetchBlaster::handleEvent(int event, void *data)
+{
+  /*
+     This one first decides if we need to send the url or not.
+     If necessary, send the url ( Right now, just connect on TCP
+     connection and send the data)
+   */
+
+  switch (event) {
+
+  case EVENT_IMMEDIATE:{
+      //Here, we need to decide if we need to prefetch based on whether it
+      //is in the cache or not.
+
+      //if (cache_lookup_necessary) do:
+      initCacheLookupConfig();
+      cacheProcessor.open_read(this, request->url_get(), false, request, &cache_lookup_config, 0);
+
+      break;
+    }
+
+  case EVENT_INTERVAL:{
+
+      if (url_list) {
+        MUTEX_TRY_LOCK(trylock, url_list->mutex, this_ethread());
+        if (!trylock) {
+          this_ethread()->schedule_in(this, HRTIME_MSECONDS(10));
+          break;
+        }
+        url_ent->resp_blaster = this;
+        url_list->handleEvent(PREFETCH_EVENT_SEND_URL, url_ent);
+      }
+
+      if (serverVC) {
+        SET_HANDLER((EventHandler) (&PrefetchBlaster::bufferObject));
+      } else {
+        SET_HANDLER((EventHandler) (&PrefetchBlaster::httpClient));
+      }
+
+      transform->free();
+      transform = NULL;
+
+      if (!url_list)
+        this_ethread()->schedule_imm_local(this);
+      // Otherwise, just wait till PrefetchUrlBlaster signals us.
+
+      break;
+    }
+
+  case CACHE_EVENT_OPEN_READ:{
+      //action = NULL;
+
+      Debug("PrefetchBlaster", "Cache lookup succeded for %s\n", url_ent->url);
+
+      serverVC = (VConnection *) data;
+
+      ((CacheVConnection *) data)->get_http_info(&cache_http_info);
+
+      invokeBlaster();
+      break;
+    }
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    //action = NULL;
+    Debug("PrefetchBlaster", "Cache lookup failed for %s\n", url_ent->url);
+
+    invokeBlaster();
+    break;
+
+  default:
+    ink_assert(!"not reached");
+    free();
+  }
+
+  return EVENT_DONE;
+}
+
+static int
+copy_header(MIOBuffer *buf, HTTPHdr *hdr, const char *hdr_tail)
+{
+  //copy the http header into to the buffer
+  int64_t done = 0;
+  int64_t offset = 0;
+
+  while (!done) {
+    int64_t block_len = buf->block_write_avail();
+    int index = 0, temp = offset;
+
+    done = hdr->print(buf->end(), block_len, &index, &temp);
+
+    ink_assert(done || index == block_len);
+
+    offset += index;
+
+    if (!done) {
+      buf->fill(index);
+      buf->add_block();
+    } else {
+      ink_assert(index >= 2);
+      if (hdr_tail && index >= 2) {
+        /*This is a hack to be able to send headers beginning with @ */
+        int len = strlen(hdr_tail);
+        offset += len - 2;
+        buf->fill(index - 2);
+        buf->write(hdr_tail, len);
+      } else
+        buf->fill(index);
+    }
+  }
+
+  return offset;
+}
+
+int
+PrefetchBlaster::httpClient(int event, void *data)
+{
+  /*
+     This one makes an http connection on the local host and sends the request
+   */
+
+  switch (event) {
+
+  case EVENT_IMMEDIATE:{
+    IpEndpoint target;
+    target.setToLoopback(AF_INET);
+    target.port() = prefetch_config->local_http_server_port;
+    netProcessor.connect_re(this, &target.sa);
+    break;
+  }
+
+  case NET_EVENT_OPEN:{
+      serverVC = (VConnection *) data;
+      buf->reset();
+
+      char *rec_header = 0;
+      char hdr_buf[64];
+
+      if (request->field_find(PREFETCH_FIELD_RECURSION, PREFETCH_FIELD_LEN_RECURSION)) {
+        snprintf(hdr_buf, sizeof(hdr_buf), "%s: %d\r\n\r\n", PREFETCH_FIELD_RECURSION,
+                 request->value_get_int(PREFETCH_FIELD_RECURSION, PREFETCH_FIELD_LEN_RECURSION));
+        rec_header = hdr_buf;
+      }
+
+      int len = copy_header(buf, request, rec_header);
+
+      serverVC->do_io_write(this, len, reader);
+
+      break;
+    }
+
+  case NET_EVENT_OPEN_FAILED:
+    Debug("PrefetchBlaster", "Open to local http port failed.. strange\n");
+    free();
+    break;
+
+  case VC_EVENT_WRITE_READY:
+    break;
+  case VC_EVENT_WRITE_COMPLETE:
+    SET_HANDLER((EventHandler) (&PrefetchBlaster::bufferObject));
+    bufferObject(EVENT_IMMEDIATE, NULL);
+    break;
+
+  default:
+    Debug("PrefetchBlaster", "Unexpected Event: %d(%s)\n", event, get_vc_event_name(event));
+  case VC_EVENT_ERROR:
+  case VC_EVENT_EOS:
+    free();
+    break;
+  }
+
+  return EVENT_DONE;
+}
+
+int
+PrefetchBlaster::bufferObject(int event, void * /* data ATS_UNUSED */)
+{
+  switch (event) {
+
+  case EVENT_INTERVAL:
+  case EVENT_IMMEDIATE:{
+      buf->reset();
+      buf->water_mark = prefetch_config->max_object_size;
+      buf->fill(PRELOAD_HEADER_LEN);
+
+      int64_t ntoread = INT64_MAX;
+      int len = copy_header(buf, request, NULL);
+
+      if (cache_http_info) {
+        len += copy_header(buf, cache_http_info->response_get(), NULL);
+        ntoread = cache_http_info->object_size_get();
+      }
+      serverVC->do_io_read(this, ntoread, buf);
+      break;
+    }
+
+  case VC_EVENT_READ_READY:
+    if (buf->high_water()) {
+      //right now we don't handle DEL events on the child
+      Debug("PrefetchBlasterTemp", "The object is bigger than %" PRId64" bytes " "cancelling the url", buf->water_mark);
+      buf->reset();
+      buf->fill(PRELOAD_HEADER_LEN);
+      buf->write("DEL ", 4);
+      buf->write(url_ent->url, url_ent->len);
+      blastObject(EVENT_IMMEDIATE, (void *) 1);
+    }
+    break;
+
+  default:
+    Debug("PrefetchBlaster", "Error Event: %s\n", get_vc_event_name(event));
+  case VC_EVENT_READ_COMPLETE:
+  case VC_EVENT_EOS:
+    blastObject(EVENT_IMMEDIATE, NULL);
+    break;
+  }
+
+  return EVENT_DONE;
+}
+
+/* following sturcture and masks should be the same in StufferUdpReceiver.cc
+   on microTS */
+
+int
+PrefetchBlaster::blastObject(int event, void *data)
+{
+  switch (event) {
+
+  case EVENT_IMMEDIATE:
+    serverVC->do_io_close();
+    serverVC = 0;
+
+    // (data == (void*)1) implies we are not sending the object because
+    // it is too large. Instead we will send "DEL" msg for the promise
+    bool obj_cancelled;
+    obj_cancelled = (data == (void *) 1);
+
+    setup_object_header(reader->start(), reader->read_avail(), obj_cancelled);
+
+    if (url_ent->object_buf_status != TS_PREFETCH_OBJ_BUF_NOT_NEEDED &&
+        prefetch_config->embedded_obj_hook && !obj_cancelled) {
+      TSPrefetchInfo info;
+      memset(&info, 0, sizeof(info));
+
+      info.embedded_url = url_ent->url;
+      info.object_buf_status = url_ent->object_buf_status;
+
+      info.object_buf = TSIOBufferCreate();
+      info.object_buf_reader = TSIOBufferReaderAlloc(info.object_buf);
+
+      ((MIOBuffer *) info.object_buf)->write(reader);
+
+      prefetch_config->embedded_obj_hook(TS_PREFETCH_EMBEDDED_OBJECT_HOOK, &info);
+    }
+
+    if (url_ent->object_buf_status == TS_PREFETCH_OBJ_BUF_NEEDED) {
+      //we need not send this to the child
+      free();
+      break;
+    }
+
+    if (data_blast.type == TS_PREFETCH_TCP_BLAST) {
+      g_conn_table->append(url_ent->child_ip, buf, reader);
+      buf = 0;
+      free();
+      break;
+    } else {
+      SET_HANDLER((EventHandler) (&PrefetchBlaster::blastObject));
+      *(int *) reader->start() = htonl(reader->read_avail());
+
+      io_block = ioBlockAllocator.alloc();
+      io_block->alloc(BUFFER_SIZE_INDEX_32K);
+
+      seq_no = get_udp_seq_no();
+      //fall through
+    }
+
+  case NET_EVENT_DATAGRAM_WRITE_COMPLETE:{
+      io_block->reset();
+      io_block->fill(PRELOAD_UDP_HEADER_LEN);
+
+      int64_t nread_avail = reader->read_avail();
+
+      if (nread_avail <= 0) {
+        free();
+        break;
+      }
+
+      int64_t nwrite_avail = io_block->write_avail();
+
+      int64_t towrite = (nread_avail < nwrite_avail) ? nread_avail : nwrite_avail;
+
+      reader->read(io_block->end(), towrite);
+      io_block->fill(towrite);
+
+      Debug("PrefetchBlaster", "UDP: sending data: pkt_no: %d last_pkt: %d"
+            " url: %s", n_pkts_sent, (towrite >= nread_avail), url_ent->url);
+
+      setup_udp_header(io_block->start(), seq_no, n_pkts_sent++, (towrite >= nread_avail));
+
+      IpEndpoint saddr;
+      ats_ip_copy(&saddr.sa,
+        ats_is_ip(&url_ent->data_multicast_ip)
+        ? &url_ent->data_multicast_ip.sa
+        : &url_ent->child_ip.sa
+      );
+      ats_ip_port_cast(&saddr) = htons(prefetch_config->stuffer_port);
+
+      //saddr.sin_addr.s_addr = htonl((209<<24)|(131<<16)|(60<<8)|243);
+      //saddr.sin_addr.s_addr = htonl((209<<24)|(131<<16)|(48<<8)|52);
+
+      udpNet.sendto_re(this, NULL, prefetch_udp_fd, &saddr.sa, sizeof(saddr), io_block, io_block->read_avail());
+    }
+    break;
+
+  case NET_EVENT_DATAGRAM_WRITE_ERROR:
+    Debug("PrefetchBlaster", "error in sending the udp data %p", data);
+
+  default:
+    ink_assert(!"unexpected event");
+  }
+  return EVENT_DONE;
+}
+
+int
+PrefetchBlaster::invokeBlaster()
+{
+  int ret = (cache_http_info && !prefetch_config->push_cached_objects)
+    ? TS_PREFETCH_DISCONTINUE : TS_PREFETCH_CONTINUE;
+
+  TSPrefetchBlastData url_blast = prefetch_config->default_url_blast;
+  data_blast = prefetch_config->default_data_blast;
+
+  if (prefetch_config->embedded_url_hook) {
+
+    TSPrefetchInfo info;
+
+    info.request_buf = reinterpret_cast<TSMBuffer>(request);
+    info.request_loc = reinterpret_cast<TSMLoc>(request->m_http);
+    info.response_buf = 0;
+    info.response_loc = 0;
+
+    info.object_buf = 0;
+    info.object_buf_reader = 0;
+    info.object_buf_status = TS_PREFETCH_OBJ_BUF_NOT_NEEDED;
+
+    ats_ip_copy(ats_ip_sa_cast(&info.client_ip), &url_ent->child_ip);
+    info.embedded_url = url_ent->url;
+    info.present_in_cache = (cache_http_info != NULL);
+    info.url_blast = url_blast;
+    info.url_response_blast = data_blast;
+
+    ret = (*prefetch_config->embedded_url_hook)
+      (TS_PREFETCH_EMBEDDED_URL_HOOK, &info);
+
+    url_blast = info.url_blast;
+    data_blast = info.url_response_blast;
+
+    url_ent->object_buf_status = info.object_buf_status;
+  }
+
+  if (ret == TS_PREFETCH_CONTINUE) {
+
+    if (TS_PREFETCH_MULTICAST_BLAST == url_blast.type)
+      ats_ip_copy(&url_ent->url_multicast_ip, ats_ip_sa_cast(&url_blast.ip));
+    if (TS_PREFETCH_MULTICAST_BLAST == data_blast.type)
+      ats_ip_copy(&url_ent->data_multicast_ip, ats_ip_sa_cast(&data_blast.ip));
+
+    if (url_ent->object_buf_status != TS_PREFETCH_OBJ_BUF_NEEDED) {
+      if (url_blast.type == TS_PREFETCH_TCP_BLAST)
+        url_list = transform->tcp_url_list;
+      else
+        url_list = transform->udp_url_list;
+    }
+    //if recursion is enabled, go through local host even for cached
+    //objects
+    if (prefetch_config->max_recursion > 0 && serverVC) {
+      serverVC->do_io_close();
+      serverVC = NULL;
+      cache_http_info = 0;
+    }
+
+    /*
+       if (data_proto == TCP_BLAST)
+       data_blaster = (EventHandler)(&PrefetchBlaster::tcpDataBlaster);
+       else data_blaster = (EventHandler)(&PrefetchBlaster::udpDataBlaster);
+     */
+    handleEvent(EVENT_INTERVAL, NULL);
+  } else {
+    free();
+  }
+  return 0;
+}
+
+void
+PrefetchBlaster::initCacheLookupConfig()
+{
+  //The look up parameters are intialized in the same as it is done
+  //in HttpSM::init(). Any changes there should come in here.
+  HttpConfigParams *http_config_params = HttpConfig::acquire();
+  cache_lookup_config.cache_global_user_agent_header = http_config_params->global_user_agent_header ? true : false;
+  cache_lookup_config.cache_enable_default_vary_headers =
+    http_config_params->cache_enable_default_vary_headers ? true : false;
+  cache_lookup_config.cache_vary_default_text = http_config_params->cache_vary_default_text;
+  cache_lookup_config.cache_vary_default_images = http_config_params->cache_vary_default_images;
+  cache_lookup_config.cache_vary_default_other = http_config_params->cache_vary_default_other;
+
+  HttpConfig::release(http_config_params);
+}
+
+static int
+config_read_proto(TSPrefetchBlastData &blast, const char *str)
+{
+  if (strncasecmp(str, "udp", 3) == 0)
+    blast.type = TS_PREFETCH_UDP_BLAST;
+  else if (strncasecmp(str, "tcp", 3) == 0)
+    blast.type = TS_PREFETCH_TCP_BLAST;
+  else {                        // this is a multicast address:
+    if (strncasecmp("multicast:", str, 10) == 0) {
+      if (0 != ats_ip_pton(str, ats_ip_sa_cast(&blast.ip))) {
+        Error("PrefetchProcessor: Address specified for multicast does not seem to "
+              "be of the form multicast:ip_addr (eg: multicast:224.0.0.1)");
+        return 1;
+      } else {
+        ip_text_buffer ipb;
+        blast.type = TS_PREFETCH_MULTICAST_BLAST;
+        Debug("Prefetch", "Setting multicast address: %s\n", ats_ip_ntop(ats_ip_sa_cast(&blast.ip), ipb, sizeof(ipb)));
+      }
+    } else {
+      Error("PrefetchProcessor: The protocol for Prefetch should of the form: " "tcp or udp or multicast:ip_address");
+      return 1;
+    }
+  }
+
+  return 0;
+}
+
+int
+PrefetchConfiguration::readConfiguration()
+{
+  xptr<char> conf_path;
+  int fd = -1;
+
+  local_http_server_port = stuffer_port = 0;
+  prefetch_enabled = REC_ConfigReadInteger("proxy.config.prefetch.prefetch_enabled");
+  if (prefetch_enabled <= 0) {
+    prefetch_enabled = 0;
+    return 0;
+  }
+
+  local_http_server_port = HttpProxyPort::findHttp(AF_INET)->m_port;
+  REC_ReadConfigInteger(stuffer_port, "proxy.config.prefetch.child_port");
+  REC_ReadConfigInteger(url_buffer_size, "proxy.config.prefetch.url_buffer_size");
+  REC_ReadConfigInteger(url_buffer_timeout, "proxy.config.prefetch.url_buffer_timeout");
+  REC_ReadConfigInteger(keepalive_timeout, "proxy.config.prefetch.keepalive_timeout");
+  if (keepalive_timeout <= 0)
+    keepalive_timeout = 3600;
+
+  REC_ReadConfigInteger(push_cached_objects, "proxy.config.prefetch.push_cached_objects");
+
+  REC_ReadConfigInteger(max_object_size, "proxy.config.prefetch.max_object_size");
+
+  REC_ReadConfigInteger(max_recursion, "proxy.config.prefetch.max_recursion");
+
+  REC_ReadConfigInteger(redirection, "proxy.config.prefetch.redirection");
+
+  char *tstr = REC_ConfigReadString("proxy.config.prefetch.default_url_proto");
+  if (config_read_proto(default_url_blast, tstr))
+    goto Lerror;
+
+  tstr = REC_ConfigReadString("proxy.config.prefetch.default_data_proto");
+  if (config_read_proto(default_data_blast, tstr))
+    goto Lerror;
+
+  //pre_parse_hook = 0;
+  //embedded_url_hook = 0;
+
+  conf_path = RecConfigReadConfigPath("proxy.config.prefetch.config_file");
+  if (!conf_path) {
+    Warning("PrefetchProcessor: No prefetch configuration file specified. Prefetch disabled\n");
+    goto Lerror;
+  }
+
+  fd = open(conf_path, O_RDONLY);
+  if (fd < 0) {
+    Error("PrefetchProcessor: Error, could not open '%s' disabling Prefetch\n", (const char *)conf_path);
+    goto Lerror;
+  }
+
+  char *temp_str;
+  if ((temp_str = Load_IpMap_From_File(&ip_map, fd, "prefetch_children")) != 0) {
+    Error("PrefetchProcessor: Error in reading ip_range from %s: %.256s\n", (const char *)conf_path, temp_str);
+    ats_free(temp_str);
+    goto Lerror;
+  }
+
+  lseek(fd, 0, SEEK_SET);
+  readHtmlTags(fd, &html_tags_table, &html_attrs_table);
+  if (html_tags_table == NULL) {
+    html_tags_table = &prefetch_allowable_html_tags[0];
+    ink_assert(html_attrs_table == NULL);
+    html_attrs_table = &prefetch_allowable_html_attrs[0];
+  }
+
+  close(fd);
+  return 0;
+Lerror:
+  if (fd >= 0)
+    close(fd);
+  prefetch_enabled = 0;
+  return -1;
+}
+
+void
+PrefetchConfiguration::readHtmlTags(int fd, html_tag ** ptags, html_tag ** pattrs)
+{
+  int ntags = 0;
+  html_tag tags[256];
+  html_tag attrs[256];
+  bool attrs_exist = false;
+  char buf[512], tag[64], attr[64], attr_tag[64], attr_attr[64];
+  int num;
+  int end_of_file = 0;
+
+  memset(attrs, 0, 256 * sizeof(html_tag));
+  while (!end_of_file && ntags < 256) {
+    char c;
+    int ret, len = 0;
+    //read the line
+    while (((ret = read(fd, &c, 1)) == 1) && (c != '\n'))
+      if (len < 511)
+        buf[len++] = c;
+    buf[len] = 0;
+    if (ret <= 0)
+      end_of_file = 1;
+
+    // length(63) specified in sscanf, no need to worry about string overflow
+    // coverity[secure_coding]
+    if ((num = sscanf(buf, " html_tag %63s %63s %63s %63s", tag, attr, attr_tag, attr_attr)) >= 2) {
+      Debug("Prefetch", "Read html_tag: %s %s\n", tag, attr);
+      tags[ntags].tag = ats_strdup(tag);
+      tags[ntags].attr = ats_strdup(attr);
+      if (num >= 4) {
+        if (!attrs_exist)
+          attrs_exist = true;
+        attrs[ntags].tag = ats_strdup(attr_tag);
+        attrs[ntags].tag = ats_strdup(attr_attr);
+      }
+      ntags++;
+    }
+  }
+
+  if (ntags > 0) {
+    html_tag *xtags = (html_tag *)ats_malloc((ntags + 3) * sizeof(html_tag));
+
+    memcpy(xtags, &tags[0], ntags * sizeof(tags[0]));
+    //the following two are always added
+    xtags[ntags].tag = "base";
+    xtags[ntags].attr = "href";
+    xtags[ntags + 1].tag = "meta";
+    xtags[ntags + 1].attr = "content";
+    xtags[ntags + 2].tag = xtags[ntags + 2].attr = NULL;
+
+    *ptags = xtags;
+    if (attrs_exist) {
+      html_tag *xattrs = (html_tag *)ats_malloc((ntags + 3) * sizeof(html_tag));
+      memcpy(xattrs, &attrs[0], 256 * sizeof(html_tag));
+      *pattrs = xattrs;
+    } else
+      *pattrs = NULL;
+    return;
+  }
+
+  *ptags = NULL;
+  *pattrs = NULL;
+}
+
+/* Keep Alive stuff */
+
+#define CONN_ARR_SIZE 256
+inline int
+KeepAliveConnTable::ip_hash(IpEndpoint const& ip)
+{
+  return ats_ip_hash(&ip.sa) & (CONN_ARR_SIZE - 1);
+}
+
+inline int
+KeepAliveConn::append(IOBufferReader *rdr)
+{
+  int64_t size = rdr->read_avail();
+
+  nbytes_added += size;
+
+  buf->write(rdr);
+  vio->reenable();
+
+  return 0;
+}
+
+int
+KeepAliveConnTable::init()
+{
+  arr = new conn_elem[CONN_ARR_SIZE];
+
+  for (int i = 0; i < CONN_ARR_SIZE; i++) {
+    arr[i].conn = 0;
+    arr[i].mutex = new_ProxyMutex();
+  }
+
+  return 0;
+}
+
+void
+KeepAliveConnTable::free()
+{
+  for (int i = 0; i < CONN_ARR_SIZE; i++)
+    arr[i].mutex.clear();
+
+  delete arr;
+  delete this;
+}
+
+ClassAllocator<KeepAliveLockHandler> prefetchLockHandlerAllocator("prefetchLockHandlerAllocator");
+
+int
+KeepAliveConnTable::append(IpEndpoint const& ip, MIOBuffer *buf, IOBufferReader *reader)
+{
+  int index = ip_hash(ip);
+
+  MUTEX_TRY_LOCK(trylock, arr[index].mutex, this_ethread());
+  if (!trylock) {
+    /* This lock fails quite often. This can be expected because,
+       multiple threads try to append their buffer all the the same
+       time to the same connection. Other thread holds it for a long
+       time when it is doing network IO 'n stuff. This is one more
+       reason why URL messages should be sent by UDP. We will avoid
+       appending small messages here and those URL message reach the
+       child much faster */
+
+    prefetchLockHandlerAllocator.alloc()->init(ip, buf, reader);
+    return 1;
+  }
+
+  KeepAliveConn **conn = &arr[index].conn;
+
+  while (*conn && ! ats_ip_addr_eq(&(*conn)->ip, &ip))
+    conn = &(*conn)->next;
+
+  if (*conn) {
+    (*conn)->append(reader);
+    free_MIOBuffer(buf);
+  } else {
+    *conn = new KeepAliveConn;     //change to fast allocator?
+    (*conn)->init(ip, buf, reader);
+  }
+
+  return 0;
+}
+
+int
+KeepAliveConn::init(IpEndpoint const& xip, MIOBuffer *xbuf, IOBufferReader *xreader)
+{
+  mutex = g_conn_table->arr[KeepAliveConnTable::ip_hash(xip)].mutex;
+
+  ip = xip;
+  buf = xbuf;
+  reader = xreader;
+
+  childVC = 0;
+  vio = 0;
+  next = 0;
+
+  read_buf = new_MIOBuffer();   //we should give minimum size possible
+
+  nbytes_added = reader->read_avail();
+
+  SET_HANDLER(&KeepAliveConn::handleEvent);
+
+  //we are already under lock
+  netProcessor.connect_re(this, &ip.sa);
+
+  return 0;
+}
+
+void
+KeepAliveConn::free()
+{
+  if (childVC)
+    childVC->do_io_close();
+
+  if (buf)
+    free_MIOBuffer(buf);
+  if (read_buf)
+    free_MIOBuffer(read_buf);
+
+  KeepAliveConn *prev = 0;
+  KeepAliveConn **head = &g_conn_table->arr[KeepAliveConnTable::ip_hash(ip)].conn;
+
+  KeepAliveConn *conn = *head;
+  while (conn != this) {
+    prev = conn;
+    conn = conn->next;
+  }
+
+  if (prev)
+    prev->next = next;
+  else
+    *head = next;
+
+  mutex.clear();
+  Debug("PrefetchKConn", "deleting a KeepAliveConn");
+  delete this;
+}
+
+int
+KeepAliveConn::handleEvent(int event, void *data)
+{
+  ip_text_buffer ipb;
+
+  switch (event) {
+
+  case NET_EVENT_OPEN:
+
+    childVC = (NetVConnection *) data;
+
+    childVC->set_inactivity_timeout(HRTIME_SECONDS(prefetch_config->keepalive_timeout));
+
+    vio = childVC->do_io_write(this, INT64_MAX, reader);
+
+    //this read lets us disconnect when the other side closes
+    childVC->do_io_read(this, INT64_MAX, read_buf);
+    break;
+
+  case NET_EVENT_OPEN_FAILED:
+    Debug("PrefetchKeepAlive", "Connection to child %s failed\n", ats_ip_ntop(&ip.sa, ipb, sizeof(ipb)));
+    free();
+    break;
+
+  case VC_EVENT_WRITE_READY:
+    //Debug("PrefetchTemp", "ndone = %d", vio->ndone);
+
+    break;
+
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    //Debug("PrefetchTemp", "%d sec timeout expired for %d.%d.%d.%d",
+    //prefetch_config->keepalive_timeout, IPSTRARGS(ip));
+
+    if (reader->read_avail())
+      childVC->set_inactivity_timeout(HRTIME_SECONDS(prefetch_config->keepalive_timeout));
+    else
+      free();
+    break;
+
+  case VC_EVENT_READ_COMPLETE:
+  case VC_EVENT_READ_READY:
+    /*Right now we dont expect any response from the child.
+       Read event implies POLLHUP */
+  case VC_EVENT_EOS:
+    Debug("PrefetchKeepAlive", "the other side closed the connection");
+    free();
+    break;
+
+  case VC_EVENT_ERROR:
+    Debug("PrefetchKeepAlive", "got VC_ERROR.. connection problem? " "(ip: %s)", ats_ip_ntop(&ip.sa, ipb, sizeof(ipb)));
+    free();
+    break;
+
+  default:
+    ink_assert(!"not reached");
+    free();
+  }
+
+  return EVENT_DONE;
+}
+
+int
+KeepAliveLockHandler::handleEvent(int event, void * /* data ATS_UNUSED */)
+{
+  if (event == EVENT_INTERVAL)
+    g_conn_table->append(ip, buf, reader);
+
+  prefetchLockHandlerAllocator.free(this);
+
+  return EVENT_DONE;
+}
+
+/* API */
+int
+TSPrefetchHookSet(int hook_no, TSPrefetchHook hook)
+{
+  switch (hook_no) {
+
+  case TS_PREFETCH_PRE_PARSE_HOOK:
+    prefetch_config->pre_parse_hook = hook;
+    return 0;
+
+  case TS_PREFETCH_EMBEDDED_URL_HOOK:
+    prefetch_config->embedded_url_hook = hook;
+    return 0;
+
+  case TS_PREFETCH_EMBEDDED_OBJECT_HOOK:
+    prefetch_config->embedded_obj_hook = hook;
+    return 0;
+
+  default:
+    return -1;
+  }
+}
+
+#endif // PREFETCH
diff --git a/proxy/Prefetch.h b/proxy/Prefetch.h
new file mode 100644
index 00000000..27aaa0a8
--- /dev/null
+++ b/proxy/Prefetch.h
@@ -0,0 +1,440 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _PREFETCH_H_
+#define _PREFETCH_H_
+
+#include <ts/IpMap.h>
+#include "TransformInternal.h"
+
+#ifdef PREFETCH
+
+#include "Update.h"
+#include "api/ts/experimental.h"
+
+class BlasterUrlList;
+class PrefetchUrlBlaster;
+class PrefetchBlaster;
+extern BlasterUrlList *multicastUrlBlaster;
+
+struct PrefetchConfiguration
+{
+  int prefetch_enabled;
+  IpMap ip_map;
+  struct html_tag *html_tags_table;
+  struct html_tag *html_attrs_table;
+
+  int local_http_server_port;
+  int stuffer_port;
+
+  int url_buffer_size;
+  int url_buffer_timeout;
+
+  TSPrefetchBlastData default_url_blast;
+  TSPrefetchBlastData default_data_blast;
+
+  int keepalive_timeout;
+  int push_cached_objects;
+
+  unsigned int max_object_size;
+
+  unsigned int max_recursion;   //limit on depth of recursive prefetch
+  unsigned int redirection;     //limit on depth of redirect prefetch
+
+  TSPrefetchHook pre_parse_hook;
+  TSPrefetchHook embedded_url_hook;
+  TSPrefetchHook embedded_obj_hook;
+
+  PrefetchConfiguration() :
+    prefetch_enabled(0), html_tags_table(0), html_attrs_table(0),
+        local_http_server_port(0), stuffer_port(0), url_buffer_size(0),
+        url_buffer_timeout(0), keepalive_timeout(0), push_cached_objects(0),
+        max_object_size(0), max_recursion(0), redirection(0),
+        pre_parse_hook(0), embedded_url_hook(0), embedded_obj_hook(0) {
+  }
+  int readConfiguration();
+  void readHtmlTags(int fd, html_tag ** ptags, html_tag ** pattrs);
+};
+
+// TODO: This used to be private, which seems wrong.
+class PrefetchUrlEntry: public RefCountObj
+{
+public:
+  PrefetchUrlEntry()
+    : url(0), len(INT_MAX), resp_blaster(0),
+      object_buf_status(TS_PREFETCH_OBJ_BUF_NOT_NEEDED),
+      blaster_link(0), hash_link(0)
+  {
+    ink_zero(req_ip);
+    ink_zero(child_ip);
+    ink_zero(url_multicast_ip);
+    ink_zero(data_multicast_ip);
+    refcount_inc();
+  }
+
+  void init(char *str, INK_MD5 & xmd5)
+  {
+    len = strlen(url = str) + 1;
+    md5 = xmd5;
+  }
+  void free();
+
+  PrefetchUrlEntry *assign()
+  {
+    refcount_inc();
+    return this;
+  };
+
+  char *url;
+  int len;
+  INK_MD5 md5;
+
+  PrefetchBlaster *resp_blaster;
+
+  int object_buf_status;
+
+  IpEndpoint req_ip;     /*ip address where request is coming from */
+  IpEndpoint child_ip;
+  IpEndpoint url_multicast_ip;
+  IpEndpoint data_multicast_ip;
+
+  PrefetchUrlEntry *blaster_link;
+  PrefetchUrlEntry *hash_link;
+
+private:
+  // this private copy ctor is set to prevent from being used
+  // coverity[uninit_member]
+  PrefetchUrlEntry(const PrefetchUrlEntry &)
+  {
+  };
+};
+
+extern ClassAllocator<PrefetchUrlEntry> prefetchUrlEntryAllocator;
+
+inline void
+PrefetchUrlEntry::free()
+{
+  if (refcount_dec() == 0) {
+    ats_free(url);
+    prefetchUrlEntryAllocator.free(this);
+  }
+}
+
+class PrefetchTransform:public INKVConnInternal, public RefCountObj
+{
+  enum
+  { HASH_TABLE_LENGTH = 61 /*127, 511 */  };
+public:
+
+    PrefetchTransform(HttpSM * sm, HTTPHdr * resp);
+   ~PrefetchTransform();
+  void free()
+  {
+    if (refcount_dec() == 0)
+      delete this;
+  };
+  PrefetchTransform *assign()
+  {
+    refcount_inc();
+    return this;
+  };
+
+  int handle_event(int event, void *edata);
+  int parse_data(IOBufferReader * reader);
+  int redirect(HTTPHdr * resp);
+
+  PrefetchUrlEntry *hash_add(char *url);
+
+public:
+  MIOBuffer * m_output_buf;
+  IOBufferReader *m_output_reader;
+  VIO *m_output_vio;
+
+  HttpSM *m_sm;
+
+  char *url;
+
+  HtmlParser html_parser;
+
+  PrefetchUrlEntry *hash_table[HASH_TABLE_LENGTH];
+
+  BlasterUrlList *udp_url_list;
+  BlasterUrlList *tcp_url_list;
+
+  const char *domain_start;
+  const char *domain_end;
+  const char *host_start;
+  int host_len;
+  bool no_dot_in_host;
+};
+
+extern TSPrefetchBlastData const UDP_BLAST_DATA;
+extern TSPrefetchBlastData const TCP_BLAST_DATA;
+
+//blaster
+class BlasterUrlList:public Continuation
+{
+
+  int timeout;                  //in milliseconds
+  Action *action;
+  int mtu;
+  TSPrefetchBlastData blast;
+
+  PrefetchUrlEntry *list_head;
+  int cur_len;
+
+public:
+  BlasterUrlList()
+    : Continuation(), timeout(0), action(0), mtu(0), list_head(0), cur_len(0)
+  {  }
+
+  void init(TSPrefetchBlastData const& bdata = UDP_BLAST_DATA, int tout = 0, int xmtu = INT_MAX) {
+    SET_HANDLER((int (BlasterUrlList::*)(int, void *))(&BlasterUrlList::handleEvent));
+    mutex = new_ProxyMutex();
+    blast = bdata;
+    timeout = tout;
+    mtu = xmtu;
+  }
+
+  void free();
+
+  int handleEvent(int event, void *data);
+  void invokeUrlBlaster();
+};
+
+extern ClassAllocator<BlasterUrlList> blasterUrlListAllocator;
+
+inline void
+BlasterUrlList::free()
+{
+  mutex = NULL;
+  blasterUrlListAllocator.free(this);
+}
+
+class PrefetchUrlBlaster:public Continuation
+{
+public:
+  typedef int (PrefetchUrlBlaster::*EventHandler) (int, void *);
+
+    PrefetchUrlBlaster()
+  : url_head(0), action(0)
+  {
+    ink_zero(blast);
+  }
+
+  void init(PrefetchUrlEntry * list_head, TSPrefetchBlastData const& u_bd = UDP_BLAST_DATA);
+
+  void free();
+
+  PrefetchUrlEntry *url_head;
+  TSPrefetchBlastData blast;
+
+  Action *action;
+
+  void writeBuffer(MIOBuffer * buf);
+
+  int udpUrlBlaster(int event, void *data);
+
+};
+
+extern ClassAllocator<PrefetchUrlBlaster> prefetchUrlBlasterAllocator;
+
+void
+PrefetchUrlBlaster::init(PrefetchUrlEntry * list_head, TSPrefetchBlastData const& u_bd)
+{
+  /* More clean up necessary... we should not need this class
+     XXXXXXXXX */
+  mutex = new_ProxyMutex();
+
+  url_head = list_head;
+  blast = u_bd;
+
+  MUTEX_LOCK(lock, mutex, this_ethread());
+
+  udpUrlBlaster(SIMPLE_EVENT_EVENTS_START, NULL);
+}
+
+inline void
+BlasterUrlList::invokeUrlBlaster()
+{
+  PrefetchUrlBlaster *u_blaster = prefetchUrlBlasterAllocator.alloc();
+  u_blaster->init(list_head, blast);
+  list_head = NULL;
+  cur_len = 0;
+}
+
+class PrefetchBlaster:public Continuation
+{
+
+public:
+  typedef int (PrefetchBlaster::*EventHandler) (int event, void *data);
+
+    PrefetchBlaster()
+  : Continuation(), url_ent(0), transform(0), url_list(0), request(0),
+    cache_http_info(0), buf(0), reader(0), serverVC(0), n_pkts_sent(0), seq_no(0), io_block(0)
+  {
+  };
+  ~PrefetchBlaster() {
+  };
+
+  int init(PrefetchUrlEntry * entry, HTTPHdr * request, PrefetchTransform * p_trans);
+
+  int handleEvent(int event, void *data);
+  int bufferObject(int event, void *data);
+  int blastObject(int event, void *data);
+  int httpClient(int event, void *data);
+
+  int invokeBlaster();
+  void initCacheLookupConfig();
+
+  void handleCookieHeaders(HTTPHdr * req_hdr, HTTPHdr * resp_hdr,
+                           const char *domain_start, const char *domain_end,
+                           const char *host_start, int host_len, bool no_dot);
+
+  void free();
+
+  PrefetchUrlEntry *url_ent;
+  PrefetchTransform *transform;
+  BlasterUrlList *url_list;
+
+  HTTPHdr *request;
+  CacheHTTPInfo *cache_http_info;
+
+  MIOBuffer *buf;
+  IOBufferReader *reader;
+
+  VConnection *serverVC;
+
+  TSPrefetchBlastData data_blast;
+
+  CacheLookupHttpConfig cache_lookup_config;
+
+  //udp related:
+  uint32_t n_pkts_sent;
+  uint32_t seq_no;
+  IOBufferBlock *io_block;
+};
+
+extern ClassAllocator<PrefetchBlaster> prefetchBlasterAllocator;
+
+/*Conncetion keep alive*/
+
+#define PRELOAD_HEADER_LEN 12   //this is the new header
+//assuming bigendian bit order. does any body have a little endian bit order?
+#define PRELOAD_HDR_URL_PROMISE_FLAG (0x40000000)
+#define PRELOAD_HDR_RESPONSE_FLAG (0x80000000)
+#define PRELOAD_UDP_HEADER_LEN 12
+#define PRELOAD_UDP_LAST_PKT_FLAG (0x80000000)
+#define PRELOAD_UDP_PKT_NUM_MASK (0x7fffffff)
+
+class KeepAliveConn: public Continuation
+{
+public:
+
+  KeepAliveConn()
+    : Continuation(),  nbytes_added(0)
+  { ink_zero(ip); }
+
+  int init(IpEndpoint const& ip, MIOBuffer * buf, IOBufferReader * reader);
+  void free();
+
+  int append(IOBufferReader * reader);
+  int handleEvent(int event, void *data);
+
+  IpEndpoint ip;
+
+  MIOBuffer *buf;
+  IOBufferReader *reader;
+
+  MIOBuffer *read_buf;
+
+  NetVConnection *childVC;
+  VIO *vio;
+
+  KeepAliveConn *next;
+
+  int64_t nbytes_added;
+};
+
+class KeepAliveConnTable
+{
+public:
+
+  KeepAliveConnTable():arr(NULL)
+  {
+  };
+
+  int init();
+  void free();
+  static int ip_hash(IpEndpoint const& ip);
+  int append(IpEndpoint const& ip, MIOBuffer * buf, IOBufferReader * reader);
+
+  typedef struct
+  {
+    KeepAliveConn *conn;
+    Ptr<ProxyMutex> mutex;
+  } conn_elem;
+
+  conn_elem *arr;
+};
+extern KeepAliveConnTable *g_conn_table;
+
+class KeepAliveLockHandler: public Continuation
+{
+  /* Used when we miss the lock for the connection */
+
+public:
+  KeepAliveLockHandler()
+    :Continuation()  {
+    ink_zero(ip);
+  };
+
+  void init(IpEndpoint const& xip, MIOBuffer * xbuf, IOBufferReader * xreader)
+  {
+    mutex = g_conn_table->arr[KeepAliveConnTable::ip_hash(xip)].mutex;
+
+    ats_ip_copy(&ip, &xip);
+    buf = xbuf;
+    reader = xreader;
+
+    SET_HANDLER(&KeepAliveLockHandler::handleEvent);
+    this_ethread()->schedule_in(this, HRTIME_MSECONDS(10));
+  }
+
+  ~KeepAliveLockHandler() {
+    mutex = NULL;
+  }
+
+  int handleEvent(int event, void *data);
+
+  IpEndpoint ip;
+  MIOBuffer *buf;
+  IOBufferReader *reader;
+};
+
+
+#define PREFETCH_CONFIG_UPDATE_TIMEOUT  (HRTIME_SECOND*60)
+
+#endif // PREFETCH
+
+#endif // _PREFETCH_H_
diff --git a/proxy/ProtoSM.h b/proxy/ProtoSM.h
new file mode 100644
index 00000000..762e6b5f
--- /dev/null
+++ b/proxy/ProtoSM.h
@@ -0,0 +1,150 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   ProtoSM.h
+
+   Description:
+      Common elements for protocol state machines
+
+
+ ****************************************************************************/
+
+#ifndef _PROTO_SM_H_
+#define _PROTO_SM_H_
+
+template<class VCTentry, int max_entries> struct ProtoVCTable
+{
+public:
+  ProtoVCTable();
+  VCTentry vc_table[max_entries];
+
+  VCTentry *new_entry();
+  VCTentry *find_entry(VConnection *);
+  VCTentry *find_entry(VIO *);
+  void remove_entry(VCTentry *);
+  void cleanup_entry(VCTentry *);
+  void cleanup_all();
+  bool is_table_clear();
+};
+
+template<class VCTentry, int max_entries> inline ProtoVCTable<VCTentry, max_entries>::ProtoVCTable()
+{
+  memset(&vc_table, 0, sizeof(vc_table));
+}
+
+template<class VCTentry, int max_entries> inline VCTentry * ProtoVCTable<VCTentry, max_entries>::new_entry()
+{
+  for (int i = 0; i < max_entries; i++) {
+    if (vc_table[i].vc == NULL) {
+      return vc_table + i;
+    }
+  }
+
+  ink_release_assert(0);
+  return NULL;
+}
+
+template<class VCTentry, int max_entries>
+  inline VCTentry * ProtoVCTable<VCTentry, max_entries>::find_entry(VConnection * vc)
+{
+  for (int i = 0; i < max_entries; i++) {
+    if (vc_table[i].vc == vc) {
+      return vc_table + i;
+    }
+  }
+
+  return NULL;
+}
+
+template<class VCTentry, int max_entries>
+  inline VCTentry * ProtoVCTable<VCTentry, max_entries>::find_entry(VIO * vio)
+{
+  for (int i = 0; i < max_entries; i++) {
+    if (vc_table[i].read_vio == vio || vc_table[i].write_vio == vio) {
+      ink_assert(vc_table[i].vc != NULL);
+      return vc_table + i;
+    }
+  }
+
+  return NULL;
+}
+
+// bool ProtoVCTable::remove_entry(HttpVCEntry* e)
+//
+//    Deallocates all buffers from the associated
+//      entry and re-initializes it's other fields
+//      for reuse
+//
+template<class VCTentry, int max_entries>
+  inline void ProtoVCTable<VCTentry, max_entries>::remove_entry(VCTentry * e)
+{
+  ink_assert(e->vc == NULL || e->in_tunnel);
+  if (e->read_buffer) {
+    free_MIOBuffer(e->read_buffer);
+  }
+  if (e->write_buffer) {
+    free_MIOBuffer(e->write_buffer);
+  }
+  memset(e, 0, sizeof(VCTentry));
+}
+
+// void ProtoVCTable::cleanup_entry(HttpVCEntry* e)
+//
+//    Closes the associate vc for the entry,
+//     and the call remove_entry
+//
+template<class VCTentry, int max_entries>
+  inline void ProtoVCTable<VCTentry, max_entries>::cleanup_entry(VCTentry * e)
+{
+
+  ink_assert(e->vc);
+  if (e->in_tunnel == false) {
+    e->vc->do_io_close();
+    e->vc = NULL;
+  }
+  remove_entry(e);
+}
+
+template<class VCTentry, int max_entries> inline void ProtoVCTable<VCTentry, max_entries>::cleanup_all()
+{
+  for (int i = 0; i < max_entries; i++) {
+    if (vc_table[i].vc != NULL) {
+      cleanup_entry(vc_table + i);
+    }
+  }
+}
+
+
+template<class VCTentry, int max_entries> inline bool ProtoVCTable<VCTentry, max_entries>::is_table_clear()
+{
+  for (int i = 0; i < max_entries; i++) {
+    if (vc_table[i].vc != NULL) {
+      return false;
+    }
+  }
+  return true;
+}
+
+#endif
diff --git a/proxy/ProtocolProbeSessionAccept.cc b/proxy/ProtocolProbeSessionAccept.cc
new file mode 100644
index 00000000..46adb484
--- /dev/null
+++ b/proxy/ProtocolProbeSessionAccept.cc
@@ -0,0 +1,140 @@
+/** @file
+
+  ProtocolProbeSessionAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_Net.h"
+#include "I_Machine.h"
+#include "ProtocolProbeSessionAccept.h"
+#include "Error.h"
+
+struct ProtocolProbeTrampoline : public Continuation, public ProtocolProbeSessionAcceptEnums
+{
+  static const size_t minimum_read_size = 1;
+  static const unsigned buffer_size_index = CLIENT_CONNECTION_FIRST_READ_BUFFER_SIZE_INDEX;
+
+  explicit
+  ProtocolProbeTrampoline(const ProtocolProbeSessionAccept * probe, ProxyMutex * mutex)
+    : Continuation(mutex), probeParent(probe)
+  {
+    this->iobuf = new_MIOBuffer(buffer_size_index);
+    SET_HANDLER(&ProtocolProbeTrampoline::ioCompletionEvent);
+  }
+
+  int ioCompletionEvent(int event, void * edata)
+  {
+    VIO *             vio;
+    IOBufferReader *  reader;
+    NetVConnection *  netvc;
+    ProtoGroupKey  key = N_PROTO_GROUPS; // use this as an invalid value.
+
+    vio = static_cast<VIO *>(edata);
+    netvc = static_cast<NetVConnection *>(vio->vc_server);
+
+    switch (event) {
+    case VC_EVENT_EOS:
+    case VC_EVENT_ERROR:
+    case VC_EVENT_ACTIVE_TIMEOUT:
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+      // Error ....
+      netvc->do_io_close();
+      goto done;
+    case VC_EVENT_READ_READY:
+    case VC_EVENT_READ_COMPLETE:
+      break;
+    default:
+      return EVENT_ERROR;
+    }
+
+    reader = iobuf->alloc_reader();
+    ink_assert(netvc != NULL);
+
+    if (!reader->is_read_avail_more_than(minimum_read_size - 1)) {
+      // Not enough data read. Well, that sucks.
+      netvc->do_io_close();
+      goto done;
+    }
+
+    // SPDY clients have to start by sending a control frame (the high bit is set). Let's assume
+    // that no other protocol could possibly ever set this bit!
+    if ((uint8_t)(*reader->start()) == 0x80u) {
+      key = PROTO_SPDY;
+    } else {
+      key = PROTO_HTTP;
+    }
+
+    netvc->do_io_read(this, 0, NULL); // Disable the read IO that we started.
+
+    if (probeParent->endpoint[key] == NULL) {
+      Warning("Unregistered protocol type %d", key);
+      netvc->do_io_close();
+      goto done;
+    }
+
+    // Directly invoke the session acceptor, letting it take ownership of the input buffer.
+    probeParent->endpoint[key]->accept(netvc, this->iobuf, reader);
+    delete this;
+    return EVENT_CONT;
+
+done:
+    free_MIOBuffer(this->iobuf);
+    delete this;
+    return EVENT_CONT;
+  }
+
+  MIOBuffer * iobuf;
+  const ProtocolProbeSessionAccept * probeParent;
+};
+
+int
+ProtocolProbeSessionAccept::mainEvent(int event, void *data)
+{
+  if (event == NET_EVENT_ACCEPT) {
+    ink_assert(data);
+
+    VIO * vio;
+    NetVConnection * netvc = static_cast<NetVConnection*>(data);
+    ProtocolProbeTrampoline * probe = new ProtocolProbeTrampoline(this, netvc->mutex);
+
+    // XXX we need to apply accept inactivity timeout here ...
+
+    vio = netvc->do_io_read(probe,
+		    BUFFER_SIZE_FOR_INDEX(ProtocolProbeTrampoline::buffer_size_index), probe->iobuf);
+    vio->reenable();
+    return EVENT_CONT;
+  }
+
+  MachineFatal("Protocol probe received a fatal error: errno = %d", -((int)(intptr_t)data));
+  return EVENT_CONT;
+}
+
+void
+ProtocolProbeSessionAccept::accept(NetVConnection *, MIOBuffer *, IOBufferReader *)
+{
+  ink_release_assert(0);
+}
+
+void
+ProtocolProbeSessionAccept::registerEndpoint(ProtoGroupKey key, SessionAccept * ap)
+{
+  ink_release_assert(endpoint[key] == NULL);
+  this->endpoint[key] = ap;
+}
diff --git a/proxy/ProtocolProbeSessionAccept.h b/proxy/ProtocolProbeSessionAccept.h
new file mode 100644
index 00000000..7694653b
--- /dev/null
+++ b/proxy/ProtocolProbeSessionAccept.h
@@ -0,0 +1,72 @@
+/** @file
+
+  ProtocolProbeSessionAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef ProtocolProbeSessionAccept_H_
+#define ProtocolProbeSessionAccept_H_
+
+#include "I_SessionAccept.h"
+
+struct ProtocolProbeSessionAcceptEnums
+{
+  /// Enumeration for related groups of protocols.
+  /// There is a child acceptor for each group which
+  /// handles finer grained stuff.
+  enum ProtoGroupKey {
+    PROTO_HTTP, ///< HTTP group (0.9-1.1)
+    PROTO_HTTP2, ///< HTTP 2 group
+    PROTO_SPDY, ///< All SPDY versions
+    N_PROTO_GROUPS ///< Size value.
+  };
+};
+
+class ProtocolProbeSessionAccept: public SessionAccept, public ProtocolProbeSessionAcceptEnums
+{
+public:
+  ProtocolProbeSessionAccept(): SessionAccept(NULL)
+  {
+    memset(endpoint, 0, sizeof(endpoint));
+    SET_HANDLER(&ProtocolProbeSessionAccept::mainEvent);
+  }
+  ~ProtocolProbeSessionAccept() {}
+
+  void registerEndpoint(ProtoGroupKey key, SessionAccept * ap);
+
+  void accept(NetVConnection *, MIOBuffer *, IOBufferReader*);
+
+private:
+  int mainEvent(int event, void * netvc);
+  ProtocolProbeSessionAccept(const ProtocolProbeSessionAccept &); // disabled
+  ProtocolProbeSessionAccept& operator =(const ProtocolProbeSessionAccept&); // disabled
+
+  /** Child acceptors, index by @c ProtoGroupKey
+
+      We pass on the actual accept to one of these after doing protocol sniffing.
+      We make it one larger and leave the last entry NULL so we don't have to
+      do range checks on the enum value.
+   */
+  SessionAccept * endpoint[N_PROTO_GROUPS+1];
+
+friend struct ProtocolProbeTrampoline;
+};
+
+#endif /* ProtocolProbeSessionAccept_H_ */
diff --git a/proxy/README-stats.otl b/proxy/README-stats.otl
new file mode 100644
index 00000000..98f4013c
--- /dev/null
+++ b/proxy/README-stats.otl
@@ -0,0 +1,615 @@
+---------------------------------------------------------------------------------
+                                    STATS
+
+---------------------------------------------------------------------------------
+The following are the list of problems associated with the
+existing stat system:
+1) atomicity issues
+2) consistency and coupling issues
+3) clearing
+4) persistence
+5) aggregation and derivation
+6) relationship with manager.
+
+Specifically, some of the stats reported seemed incorrect.
+In the cases where individual stats were incorrect (e.g. 
+number of bytes transferred), it is suspected that atomicity
+issues played a role. For example, if the stat variable was
+64 bits long, were all 64 bits being read and written atomically?
+Is there the possibility that while the lower/higher 32 bits
+were being accessed, the other 32 bits were being changed?
+
+In stats which were computed based on other stats (e.g. hit
+rate is ratio of number of cache hits over total number of
+cache lookups), it is suspected that there were coupling problems.
+For example, if the number of cache hits is read and then
+before the number of cache lookups can be read, it is updated,
+the hit rate may appear incorrect.
+
+Some stats are interrelated with other stats (e.g. number of
+client requests and number of cache lookups). Inconsistencies
+between such stats may show up if for example one of the 
+values is accessed and before the other value is accessed, it
+is allowed to change. A single client request may then, for example,
+show two cache lookups.
+
+These issues can be aggravated by allowing administrators to
+clear stat values. This lead us to introduce persistence: 
+disallow clearing of stats. While this does deal with the problems
+associated with clearing, it does not address the coupling,
+inconsistency or atomicity problems. Those remain.
+
+The remaining issues, those of aggregation and interaction with
+the manager did not suffer from any fundamental design problems.
+They were more implementation related issues.
+
+A new stat system which deals correctly with the issues of
+atomicity, consistency and coupling will automatically address
+the clearing and persistence problem. Atomicity can be handled
+very simply by either of two techniques:
+1) make ALL accesses to stat variable atomic operations or
+2) protect ALL accesses to stat variables by placing them
+   within critical regions.
+
+The inconsistency and coupling problem is two-fold in nature.
+There is the problem of grouping - in that related stats (either
+indirectly, as illustrated by the inconsistency example, or
+directly as illustrated by the coupling example), may be grouped
+together. Access to either one of them, then, if controlled, will
+guarantee that the other is not concurrently modified. So, this
+will prevent values from changing while related values are being
+accessed. It will not, however, solve the problem of maintaining
+"transactional" consistency. Look at the number of request/
+number of cache lookup example again. If the stat for the number
+of requests is updated. Then the stat for the number of cache
+lookups is updated, with both updates being within critical regions,
+if the values of both stats are accessed in the time between when
+one is updated and when the other is updated, the inconsistency
+problem remains. So, even though the stats are grouped together in
+that they are accessed through the same mutex, for example, the
+inconsistency problem remains. It can be solved only if we introduce
+the notion of a transaction. All stats which are for the same
+transaction must be updated together. The values of these stats
+at any time, then, will be consistent. This is a more difficult
+problem, because not only does it introduce grouping in space,
+it introduces grouping in time as well. Unfortunately, an implementation
+requires the notion of "local" and "global" stats.
+
+Now, stats fall into three categories:
+1) transactional (dyanmic) stats: e.g. number of current origin server
+   connections,
+2) incremental stats: number of bytes from origin server,
+3) transactional stats: number of requests served.
+
+Stats of type 1) need to just be accessed atomically. They do not
+need to be cleared. Stats of type 2) need to also be accessed atomically,
+and may need to be cleared. They are not related to other stats, so they
+do not need to be grouped. Stats of type 3) need to be accessed atomically,
+but they are grouped and so must be accessed simultaneously in space-time.
+
+The three types of stats can be implemented with three different mechanisms,
+or a single mechanism can be defined which handles all three types. The latter
+approach is more elegant, but it raises questions about performance.
+
+Since transactional stats have to be accessed together, it is logical to
+control access to them through a single lock. A stat structure, then, can
+be defined to have a lock which controls access. For individual stats which
+require just atomic access, however, it may be better to allow direct
+access, without getting a lock. This may reduce lock contention.
+
+We ran two experiments to investigate the performance issue.
+The existing stat system allows for individual atomic access to all stats. 
+We compared the performance of this system with a system where instead of
+atomic access, all access requires getting a single lock. The results from
+inkbench are as follows.
+
+[keep_alive =4, 100% Hit rate, 4 client machines, 40 simultaneous users ]
+atomic: 526 ops/sec
+mutex: 499 ops/sec
+
+Changing the setup to proxy-only, which reduces the number of
+simultaneous accesses, gave:
+
+[keep_alive =4, proxy-only, 4 client machines, 40 simultaneous users ]
+atomic: 284 ops/sec
+mutex: 282 ops/sec
+
+We also ran the test with stats turned off, which gave unexpected results.
+It is unclear, however, how much we really turn the stats off (there were
+even compile-time problems and many of the stat reading/writing routines
+were still being called, etc.).
+
+In addition to the tests mentioned above, we spoke to Prof. Dirk
+Grunwald.  He said that the most expensive operations are the memory
+barriers. On the Alphas, atomic operations are implemented with
+load-locked, store- conditional and memory-barrier instructions. I
+think each operation is implemented with 2 mbs. Locks and Releases
+have one mb each. So, the number of mbs is much higher with atomic
+updates. Both atomic updates and mutex-based updates will have to pay
+similar cache loading costs (if we assume that the loads for the
+test-and-set and the loads for reads will fail, the stores will
+obviously hit). The difference, if any, will come from the contention
+for locks while all of the group elements are being updated and that
+has to be compared with the cost of as many mbs as the stats are being
+atomically updated. Context-switching while holding the lock may also
+result in a performance hit, but it may be possible to address this by
+doing "lazy" updates of global structures.
+
+The consensus, then is to have a single mechanism for access to stats:
+mutexes. This combined with a grouping scheme solves the atomicity,
+consistency, coupling, clearing and persistence problems.
+
+
+---------------------------------------------------------------------------------
+Brian's Rant:
+-------------
+In any case, I want to change the stats system once to address all the issues
+of clearing, persistence, monotonicity, coupled computations, cluster
+aggregation, etc.  Let's be sure we all understand the design issues and do
+the right thing one time.  We've gone through lots of band-aids in the past
+which got us nowhere, so let's get the design right.
+---------------------------------------------------------------------------------
+Issues:
+-------
+1) Clearing
+2) Persistence
+3) Monotonicity
+4) Coupled computations
+5) Cluster aggregation
+6) Inconsistencies between related stats
+
+- Want to be able to clear stats
+- Do not want to see inconsistencies between stats
+
+stats which increase and decrease (e.g. current open connections should
+not be clearable)
+
+persistent stats should not be clearable
+
+related stats should be updated together (updated/cleared)
+
+divide stats into 2 groups:
+1) dynamic stats - not clearable, read,written singly, atomically
+2) grouped stats - must be updated together
+
+---------------------------------------------------------------------------------
+Types Of Stats:
+---------------
+* event system stats
+	** average idle time per thread 
+	** variance of idle time per thread 
+	** average event exec rate per thread 
+	** variance of event exec rate per thread 
+	** average execution time per event 
+	** variance of execution time per event 
+	** average failed mutexes per event 
+	** variance of failed mutexes per event 
+	** average time lag per event
+	** variance of time lag per event
+	
+* socks processor stats
+	** connections unsuccessful
+	** connections successful
+	** connections currently open
+
+---------------------------------------------------------------------------------
+* cache stats
+	*** total size in bytes
+	*** # cache operations in progress
+	*** Read bandwidth from the disk
+	*** Write bandwidth to the disk
+	*** RAM cache hit-rate.
+	*** Read operations per second.
+	*** Write operations per second.
+	*** Update operations per second.
+	*** Delete operations per second.
+	*** Operations per second.
+
+---------------------------------------------------------------------------------
+* ICP Stats
+proxy.process.icp.config_mgmt_callouts
+  - Manager callouts for ICP config changes
+
+proxy.process.icp.reconfig_polls
+  - ICP config change periodic polls
+
+proxy.process.icp.reconfig_events
+  - ICP config change polls which detected config changes
+
+proxy.process.icp.invalid_poll_data
+  - Negative event callouts with invalid poll data
+
+proxy.process.icp.no_data_read
+  - Read on ICP socket returned <= 0 bytes
+
+proxy.process.icp.short_read
+  - ICP msg len != bytes read
+
+proxy.process.icp.invalid_sender
+  - ICP msg sender unknown
+
+proxy.process.icp.read_not_v2_icp
+  - Sent ICP msg not version 2
+
+(UI) proxy.process.icp.icp_remote_query_requests
+  - Remote ICP query requests received
+
+    proxy.process.icp.icp_remote_responses
+  - ICP replies received for locally generated queries
+
+(UI) proxy.process.icp.cache_lookup_success
+  - ICP queries resulting in Cache lookup success 
+
+(UI) proxy.process.icp.cache_lookup_fail
+  - ICP queries resulting in Cache lookup failure 
+
+(UI) proxy.process.icp.query_response_write
+  - ICP query responses sent
+
+proxy.process.icp.query_response_partial_write
+  - ICP query responses which were short writes
+
+proxy.process.icp.no_icp_request_for_response
+  - Received ICP query responses associated with no ICP request
+
+proxy.process.icp.icp_response_request_nolock
+  - ICP request lock acquire miss
+
+proxy.process.icp.icp_start_icpoff
+  - Local ICP queries aborted due to ICP off
+
+proxy.process.icp.send_query_partial_write
+  - ICP query sends which were short writes
+
+proxy.process.icp.icp_queries_no_expected_replies
+  - Local ICP queries sent where no response was expected
+
+(UI) proxy.process.icp.icp_query_hits
+  - ICP hits received for locally generated queries
+
+(UI) proxy.process.icp.icp_query_misses
+  - ICP misses received for locally generated queries
+
+proxy.process.icp.invalid_icp_query_response
+  - ICP responses with invalid opcodes
+
+(UI) proxy.process.icp.icp_query_requests
+  - Locally generated ICP requests
+
+(UI) proxy.process.icp.total_icp_response_time
+  - Avg response time of each locally generated ICP query
+
+(UI) proxy.process.icp.total_udp_send_queries
+  - Total ICP query sends
+
+(UI) proxy.process.icp.total_icp_request_time
+  - Overall avg response time of locally generated ICP request
+---------------------------------------------------------------------------------
+* hostdb/dns stats
+	** hostdb
+		*** total entries
+		*** total number of lookups
+		*** total number of hits
+		*** total number of misses
+		*** hit rate??? (or do we just compute this)
+	// to help tuning
+		*** average TTL remaining for hosts looked up
+		*** total number re-DNS because of re-DNS on reload
+		*** total number re-DNS because TTL expired
+	** dns
+		*** total number of lookups
+		*** total number of hits
+		*** total number of misses
+		*** average service time
+	// to help tuning
+		*** total number of retries
+		*** total number which failed with too many retries
+---------------------------------------------------------------------------------
+* network stats
+>	** incoming connections stats
+  shouldn't these stats be by protocol???
+>		*** average b/w for each connection
+  at the net level, I don't always know when I should be expecting bytes.
+  for example, a keepalive connection may expect more bytes and then not
+  get them.  When do I start and stop the timer???  This needs some thought
+>		*** average latency for each connection
+  same as above.  perhaps
+		*** latency to first byte on an accept
+  however for "latency to first by of a response" I would need to know when
+  the request was done, but that is a protocol level issue.
+>		*** number of documents/connection (keep-alive)
+  this is a protocol issue (http)
+>		*** number aborted
+  I could record how many received a do_io(VIO::ABORT) for what that
+  is worth... maybe this is also a protocol issue
+		*** high/low watermark number of simultaneous connections
+		*** high/low watermark number of connection time
+  is this last one useful??
+>	** outgoing connections stats
+>		*** average b/w for each connection
+>		*** average latency for each connection
+>		*** number of documents/connection (keep-alive)
+>		*** number aborted
+  see above
+		*** high/low watermark number of simultaneous connections
+		*** high/low watermark number of connection time
+>	** incoming connections stats
+  what does this mean??
+>		*** average b/w for each connection
+>		*** average latency for each connection
+>		*** number aborted
+	see above
+>		*** high/low watermark number of simultaneous connections
+>		*** high/low watermark number of connection time
+
+---------------------------------------------------------------------------------
+* Http Stats
+ 	** protocol stats
+ 		*** number of HTTP requests (need for ua->ts, ts->os)
+ 			**** GETs
+ 			**** HEADs
+ 			**** TRACEs
+ 			**** OPTIONs
+ 			**** POSTs
+ 			**** DELETEs
+ 			**** CONNECTs
+ 		*** number of invalid requests 
+ 		*** number of broken client connections
+ 		*** number of proxied requests
+ 			**** user-specified
+ 			**** method-specified
+ 			**** config specified (config file)
+ 		*** number of requests with Cookies
+ 		*** number of cache lookups
+ 			**** number of alternates
+ 		*** number of cache hits
+                        cache hits, misses, etc. stats should be catagorized
+                        the same way they are categorized in WUTS (squid logs).
+ 			**** fresh hits
+ 			**** stale hits
+ 				***** heuristically stale
+ 				***** expired/max-aged
+		*** number of cache writes
+		*** number of cache updates
+		*** number of cache deletes
+ 		*** number of valid responses
+ 		*** number of invalid responses
+ 		*** number of retried requests
+ 		*** number of broken server connections
+
+	        *** For each response code, count the number of responses (need for ua->ts, ts->os)
+		*** Histogram of http version (need for ua->ts, ts->os)
+ 		*** number of responses with expires
+ 		*** number of responses with last-modified
+ 		*** number of responses with age
+ 		*** number of responses indicating server clock skew
+ 		*** number of responses preventing cache store
+ 			**** Set-Cookie
+ 			**** Cache-Control: no-store
+ 		*** number of responses proxied directly
+	** Timeouts and connection errors:
+		*** accept timeout (ua -> proxy only)
+		*** background fill timeout (os -> proxy only)
+		*** normal inactive timeout (both ua -> proxy and proxy -> os)
+		*** normal activity timeout (both ua -> proxy and proxy -> os)
+		*** keep-alive idle timeout (both ua -> proxy and proxy -> os)
+	** Connections and transactions time:
+		*** average requests count per connection (both ua and os).
+		*** average connection lifetime (both ua and os).
+		*** average connection utilization (connection time / transactions count).
+		*** average transaction time (from transaction start until transaction end).
+		*** average transaction time histogram per document sizes.
+		  sizes are:
+		    <= 100 bytes, <= 1K, <= 3K, <= 5K, <= 10L, <= 1M, <= infinity
+		*** average transaction processing time (think time).
+		*** average transaction processing time (think time) histogram per document sizes.
+	** Transfer rate:
+		*** bytes per second ua connection and os connection.
+		*** bytes per second ua connection and os connection histogram per document size.
+	** Cache Stats
+		*** cache lookup time hit
+		*** cache lookup time miss
+		*** cache open read time
+		*** cache open write time
+---------------------------------------------------------------------------------
+* loggin stats
+// bytes moved
+STAT(Sum,   log2_stat_bytes_buffered),
+STAT(Sum,   log2_stat_bytes_written_to_disk),
+STAT(Sum,   log2_stat_bytes_sent_to_network),
+STAT(Sum,   log2_stat_bytes_received_from_network),
+// I/O
+STAT(Count, log2_stat_log_files_open),			UI
+STAT(Count, log2_stat_log_files_space_used),		UI
+// events
+STAT(Count, log2_stat_event_log_error),			UI
+STAT(Count, log2_stat_event_log_access),		UI
+STAT(Count, log2_stat_event_log_access_fail),		
+STAT(Count, log2_stat_event_log_access_skip),		UI
+
+---------------------------------------------------------------------------------
+------------
+Here's my version of the 20-stats list for the UI. I gathered all of the
+stats proposed from our meeting last Thursday, added requests from Tait
+Kirkham and Brian Totty, then added a few based on pilot site questions and
+customer's monitoring scripts. Not all of these additional requests are
+necessarily possible to measure. Sorted the proposed statistics into groups
+based on the kind of information they provide the proxy administrator. Then I
+picked the ones that seemed most important to me for the top 20 list. From
+the top-level statistics page there should be links to pages with more detail
+in each operational area.
+
+A few notes:
+"Average" statistics should be calculated over an interval configurable as 1
+minute, 5 minutes or 15 minutes. This includes the cache hit rate. Probably
+the cache detail info page should have a value for the overall average.
+Numbers and measurements in the user interface are presented for the
+convenience of the customer, and should be organized to suit customer needs
+and interests. Statistics from the operating system, the HTTP state machine,
+and anywhere else may be combined to create info presented in the UI.
+-----------------------------------------------------------
+
+  Statistics in the Traffic Manager UI
+  Top "20" Recommended List
+
+Client Responsiveness
+avg/max total transaction time -- request received to last byte sent.
+number of client aborts
+network bytes/sec/client
+
+Proxy Activity
+total/max active client connections
+total/max active server connections
+total/max active cache connections
+total/max active parent proxy connections
+average transaction rate
+total transaction count per protocol {dns, http, rtsp}
+total bytes served to clients
+total bytes from origin servers
+total bytes from parent proxies
+bandwidth savings: %  -- bandwidth per interface, per route options?
+
+Cache
+cache utilization %
+avg cache hit rate
+cache revalidates
+
+-----------------------------------------------------------------------------------------------------------------
+
+  Statistics in the Traffic Manager
+  The Whole List
+
+Client Responsiveness
+avg/max time to first byte  -- request received to first byte sent.
+avg/max total transaction time -- request received to last byte sent.
+avg transaction time by type of transaction:
+     cache write
+     non-cached
+     client revalidate
+     proxy revalidate
+     proxy refresh
+number of client aborts
+network bytes/sec/client
+
+Proxy Activity
+total/max active client connections
+total/max active server connections
+total/max active cache connections
+number of active connections by connection status: ESTABLISHED, CLOSE_WAIT,
+TIME_WAIT, ...
+total transaction count per protocol {dns, http, rtsp}
+total/max active parent proxy connections
+total bytes served to clients
+total bytes from origin servers
+total bytes from parent proxies
+bandwidth savings: bytes / %
+number of TCP retransmits per client
+ps-like status report of Traffic Server operations
+
+System Utilization
+proxy network utilization %
+cpu utilization %
+disk utilization %
+memory (RAM) utilization %
+
+Cache
+total cache free space
+cache utilization %
+avg cache hit rate
+cache revalidates:
+     client-specified
+     expired (expire/max-age)
+     expired (heuristic)
+cache miss time
+cache hit time
+
+Logging
+total  logging space used
+
+Cluster
+cluster network utilization %
+
+ICP
+total icp responses
+icp hit rate
+total icp requests
+---------------------------------------------------------------------------------
+Subject: Re: Simple UI for TS100
+Date: Thu, 26 Mar 1998 11:48:15 -0800
+
+>From a Support standpoint, I do have some reservations about hacking
+information and function out of the Traffic Manager for TS Lite. Less
+information in the Monitor makes it more difficult to observe Traffic Server
+operation. Less functionality in Configure means more manual editting of
+config files and greater chance of admin errors. These factors could greatly
+increase our support problems and cost for "Lite" customers.
+
+Perhaps the TS Lite UI should just remove all cluster-related information
+and controls, and material related to any other features that simply will
+not be offered on TS Lite, like the maximum network connection limit. Other
+counters and controls that relate to functions and features that are
+operational in TS Lite could be left alone. There're already present in TS
+Classic, so it costs us nothing extra.
+
+-----------------------------------
+
+Within the framework of Adam's proposal, the "Monitor" manager reduces to a
+single screen. Great! With only one screen, gotta be sure that the key
+top-level statistics are visible. I suggest that cache free is not really a
+very interesting value for most sites. Bandwidth savings is the value we
+really want to emphasize, so it must not disappear. So the Dashboard should
+have its current "More Info" stats plus
+    cache size
+    DNS Hit rate
+    Bandwidth savings
+    tps count (the tps meter is nice, but can't be read very precisely)
+The More/Less detail option itself can disappear. The word "cluster" should
+not occur anywhere in the TS Lite UI.
+
+In Configure: Server the node on/off switch and the cluster restart button
+are redundant in TS Lite. Probably ought to lose the cluster button. A
+configurable Traffic Server name also seems useless when you can't have a
+cluster.
+
+For Configure: Logging, perhaps custom log formatting should not be offered
+for TS Lite?
+
+With reduced UI configuration capability, it may be appropriate to remove
+the Configure: Snapshots screen.
+
+Adam Beguelin wrote:
+
+> For TS100 we need a simplified UI.  Here's a first cut on how we should
+> simplify the UI.
+>
+> For most of the removed pages we will simply use the installed defaults.
+>
+> Comments?
+>
+>         Adam
+>
+> On the dashboard add these stats:
+>  o Cahce Free Space
+>  o Cache Size
+>  o DNS Hit rate
+>
+> Remove these monitor pages:
+>  o node
+>  o Graphs
+>  o Protocols
+>  o Cache
+>  o Other
+>
+> Remove these sections under configure:
+>  o Server/Throttling of Network Connections
+>  o Protocols/HTTP timeouts (Leave anon and IP)
+>  o Protocols/SSL
+>  o Cache/Storage
+>  o Cache/Garbage Collection
+>  o Cache/Freshness
+>  o Cache/Variable Content
+>  o HostDB page
+>  o Logging/Log Collation
+---------------------------------------------------------------------------------
+---------------------------------------------------------------------------------
+---------------------------------------------------------------------------------
diff --git a/proxy/RegressionSM.cc b/proxy/RegressionSM.cc
new file mode 100644
index 00000000..bf3edc2b
--- /dev/null
+++ b/proxy/RegressionSM.cc
@@ -0,0 +1,249 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"
+#include "RegressionSM.h"
+
+#define REGRESSION_SM_RETRY (100*HRTIME_MSECOND)
+
+void RegressionSM::set_status(int astatus)
+{
+  ink_assert(astatus != REGRESSION_TEST_INPROGRESS);
+  // INPROGRESS < NOT_RUN < PASSED < FAILED
+  if (status != REGRESSION_TEST_FAILED) {
+    if (status == REGRESSION_TEST_PASSED) {
+      if (astatus != REGRESSION_TEST_NOT_RUN)
+        status = astatus;
+    } else {
+      // INPROGRESS or NOT_RUN
+      status = astatus;
+    }
+  } // else FAILED is FAILED
+}
+
+void RegressionSM::done(int astatus)
+{
+  if (pending_action) {
+    pending_action->cancel();
+    pending_action = 0;
+  }
+  set_status(astatus);
+  if (pstatus) *pstatus = status;
+  if (parent) parent->child_done(status);
+}
+
+void RegressionSM::run(int *apstatus)
+{
+  pstatus = apstatus;
+  run();
+}
+
+void RegressionSM::xrun(RegressionSM *aparent)
+{
+  parent = aparent;
+  parent->nwaiting++;
+  run();
+}
+
+void RegressionSM::run_in(int *apstatus, ink_hrtime t)
+{
+  pstatus = apstatus;
+  SET_HANDLER(&RegressionSM::regression_sm_start);
+  eventProcessor.schedule_in(this, t);
+}
+
+void RegressionSM::child_done(int astatus)
+{
+  MUTEX_LOCK(l, mutex, this_ethread());
+  ink_assert(nwaiting > 0);
+  --nwaiting;
+  set_status(astatus);
+}
+
+int RegressionSM::regression_sm_waiting(int /* event ATS_UNUSED */ , void *data)
+{
+  if (!nwaiting) {
+    done(REGRESSION_TEST_NOT_RUN);
+    delete this;
+    return EVENT_DONE;
+  }
+  if (par || nwaiting > 1) {
+    ((Event*)data)->schedule_in(REGRESSION_SM_RETRY);
+    return EVENT_CONT;
+  }
+  run();
+  return EVENT_DONE;
+}
+
+int RegressionSM::regression_sm_start(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  run();
+  return EVENT_CONT;
+}
+
+RegressionSM *r_sequential(RegressionTest *t, RegressionSM* sm, ...)
+{
+  RegressionSM *new_sm = new RegressionSM(t);
+  va_list ap;
+  va_start(ap, sm);
+  new_sm->par = false;
+  new_sm->rep = false;
+  new_sm->ichild = 0;
+  new_sm->nchildren = 0;
+  new_sm->nwaiting = 0;
+  while (0 != sm) {
+    new_sm->children(new_sm->nchildren++) = sm;
+    sm = va_arg(ap, RegressionSM*);
+  }
+  new_sm->n = new_sm->nchildren;
+  va_end(ap);
+  return new_sm;
+}
+
+RegressionSM *r_sequential(RegressionTest *t, int an, RegressionSM *sm)
+{
+  RegressionSM *new_sm = new RegressionSM(t);
+  new_sm->par = false;
+  new_sm->rep = true;
+  new_sm->ichild = 0;
+  new_sm->nchildren = 1;
+  new_sm->children(0) = sm;
+  new_sm->nwaiting = 0;
+  new_sm->n = an;
+  return new_sm;
+}
+
+RegressionSM *r_parallel(RegressionTest *t, RegressionSM *sm, ...)
+{
+  RegressionSM *new_sm = new RegressionSM(t);
+  va_list ap;
+  va_start(ap, sm);
+  new_sm->par = true;
+  new_sm->rep = false;
+  new_sm->ichild = 0;
+  new_sm->nchildren = 0;
+  new_sm->nwaiting = 0;
+  while (sm) {
+    new_sm->children(new_sm->nchildren++) = sm;
+    sm = va_arg(ap, RegressionSM*);
+  }
+  new_sm->n = new_sm->nchildren;
+  va_end(ap);
+  return new_sm;
+}
+
+RegressionSM *r_parallel(RegressionTest *t, int an, RegressionSM *sm)
+{
+  RegressionSM *new_sm = new RegressionSM(t);
+  new_sm->par = true;
+  new_sm->rep = true;
+  new_sm->ichild = 0;
+  new_sm->nchildren = 1;
+  new_sm->children(0) = sm;
+  new_sm->nwaiting = 0;
+  new_sm->n = an;
+  return new_sm;
+}
+
+void RegressionSM::run()
+{
+  // TODO: Why introduce another scope here?
+  {
+    MUTEX_TRY_LOCK(l, mutex, this_ethread());
+    if (!l || nwaiting > 1)
+      goto Lretry;
+    RegressionSM *x = 0;
+    while (ichild < n) {
+      if (!rep)
+        x = children[ichild];
+      else {
+        if (ichild != n-1)
+          x = children[(intptr_t)0]->clone();
+        else
+          x = children[(intptr_t)0];
+      }
+      if (!ichild) nwaiting++;
+      x->xrun(this);
+      ichild++;
+      if (!par && nwaiting > 1)
+        goto Lretry;
+    }
+  }
+  nwaiting--;
+  if (!nwaiting) {
+    done(REGRESSION_TEST_NOT_RUN);
+    delete this;
+    return;
+  }
+Lretry:
+  SET_HANDLER(&RegressionSM::regression_sm_waiting);
+  pending_action = eventProcessor.schedule_in(this, REGRESSION_SM_RETRY);
+}
+
+RegressionSM::RegressionSM(const RegressionSM &ao)
+{
+  RegressionSM &o = *(RegressionSM*)&ao;
+  t = o.t;
+  status = o.status;
+  pstatus = o.pstatus;
+  parent = &o;
+  nwaiting = o.nwaiting;
+  nchildren = o.nchildren;
+  for (intptr_t i = 0; i < nchildren; i++)
+    children(i) = o.children[i]->clone();
+  n = o.n;
+  ichild = o.ichild;
+  par = o.par;
+  rep = o.rep;
+  pending_action = o.pending_action;
+  ink_assert(status == REGRESSION_TEST_INPROGRESS);
+  ink_assert(nwaiting == 0);
+  ink_assert(ichild == 0);
+  mutex = new_ProxyMutex();
+}
+
+struct ReRegressionSM: public RegressionSM
+{
+  virtual void run() {
+    if (time(NULL) < 1) { // example test
+      rprintf(t,"impossible");
+      done(REGRESSION_TEST_FAILED);
+    } else
+      done(REGRESSION_TEST_PASSED);
+  }
+  ReRegressionSM(RegressionTest *at) : RegressionSM(at) {}
+  virtual RegressionSM *clone() { return new ReRegressionSM(*this); }
+  ReRegressionSM(const ReRegressionSM &o) {
+    t = o.t;
+  }
+};
+
+REGRESSION_TEST(RegressionSM)(RegressionTest *t, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  r_sequential(t, r_parallel(t, new ReRegressionSM(t), new ReRegressionSM(t), NULL_PTR),
+               r_sequential(t, new ReRegressionSM(t), new ReRegressionSM(t), NULL_PTR),
+               r_parallel(t, 3, new ReRegressionSM(t)), r_sequential(t, 3, new ReRegressionSM(t)),
+               r_parallel(t, r_sequential(t, 2, new ReRegressionSM(t)),
+                          r_parallel(t, 2, new ReRegressionSM(t)), NULL_PTR),
+               NULL_PTR)->run(pstatus);
+}
diff --git a/proxy/RegressionSM.h b/proxy/RegressionSM.h
new file mode 100644
index 00000000..72c9c060
--- /dev/null
+++ b/proxy/RegressionSM.h
@@ -0,0 +1,80 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _RegressionSM_h
+#define _RegressionSM_h
+
+#include "I_EventSystem.h"
+
+/*
+  Regression Test Composition State Machine
+
+  See RegressionSM.cc at the end for an example
+*/
+
+struct RegressionSM :  public Continuation {
+
+  RegressionTest *t; // for use with rprint
+
+  // methods to override
+  virtual void run(); // replace with leaf regression
+  virtual RegressionSM *clone() { return new RegressionSM(*this); } // replace for run_xxx(int n,...);
+
+  // public API
+  void done(int status = REGRESSION_TEST_NOT_RUN);
+  void run(int *pstatus);
+  void run_in(int *pstatus, ink_hrtime t);
+
+  // internal
+  int status;
+  int *pstatus;
+  RegressionSM *parent;
+  int nwaiting;
+  int nchildren;
+  DynArray<RegressionSM*> children;
+  intptr_t n, ichild;
+  bool par, rep;
+  Action *pending_action;
+
+  int regression_sm_start(int event, void *data);
+  int regression_sm_waiting(int event, void *data);
+  void set_status(int status);
+  void child_done(int status);
+  void xrun(RegressionSM *parent);
+
+  RegressionSM(RegressionTest *at = NULL) :
+    t(at), status(REGRESSION_TEST_INPROGRESS),
+    pstatus(0), parent(0), nwaiting(0), nchildren(0), children(0), ichild(0), par(false), rep(false),
+    pending_action(0)
+  {
+    mutex = new_ProxyMutex();
+  }
+  RegressionSM(const RegressionSM &);
+};
+
+RegressionSM *r_sequential(RegressionTest *t, int n, RegressionSM *sm);
+RegressionSM *r_sequential(RegressionTest *t, RegressionSM *sm, ...); // terminate list in NULL
+RegressionSM *r_parallel(RegressionTest *t, int n, RegressionSM *sm);
+RegressionSM *r_parallel(RegressionTest *t, RegressionSM *sm, ...); // terminate list in NULL
+
+#endif
diff --git a/proxy/ReverseProxy.cc b/proxy/ReverseProxy.cc
new file mode 100644
index 00000000..a69206a3
--- /dev/null
+++ b/proxy/ReverseProxy.cc
@@ -0,0 +1,207 @@
+/** @file
+
+  Definitions for reverse proxy
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section details Details
+
+  Implements code necessary for Reverse Proxy which mostly consists of
+  general purpose hostname substitution in URLs.
+
+ */
+
+#include "libts.h"
+#include <dlfcn.h>
+#include "Main.h"
+#include "Error.h"
+#include "P_EventSystem.h"
+#include "StatSystem.h"
+#include "P_Cache.h"
+#include "ProxyConfig.h"
+#include "ReverseProxy.h"
+#include "MatcherUtils.h"
+#include "Tokenizer.h"
+#include "api/ts/remap.h"
+#include "RemapPluginInfo.h"
+#include "RemapProcessor.h"
+#include "UrlRewrite.h"
+#include "UrlMapping.h"
+
+/** Time till we free the old stuff after a reconfiguration. */
+#define URL_REWRITE_TIMEOUT            (HRTIME_SECOND*60)
+
+// Global Ptrs
+static Ptr<ProxyMutex> reconfig_mutex;
+UrlRewrite *rewrite_table = NULL;
+remap_plugin_info *remap_pi_list; // We never reload the remap plugins, just append to 'em.
+
+// Tokens for the Callback function
+#define FILE_CHANGED 0
+#define REVERSE_CHANGED 1
+#define TSNAME_CHANGED 2
+#define AC_PORT_CHANGED 3
+#define TRANS_CHANGED 4
+#define DEFAULT_TO_PAC_CHANGED 5
+#define DEFAULT_TO_PAC_PORT_CHANGED 7
+#define URL_REMAP_MODE_CHANGED 8
+#define HTTP_DEFAULT_REDIRECT_CHANGED 9
+
+int url_remap_mode;
+
+//
+// Begin API Functions
+//
+
+int
+init_reverse_proxy()
+{
+  ink_assert(rewrite_table == NULL);
+  reconfig_mutex = new_ProxyMutex();
+  rewrite_table = new UrlRewrite();
+
+  if (!rewrite_table->is_valid()) {
+    Warning("Can not load the remap table, exiting out!");
+    // TODO: For now, I _exit() out of here, because otherwise we'll keep generating
+    // core files (if enabled) when starting up with a bad remap.config file.
+    _exit(-1);
+  }
+
+  REC_RegisterConfigUpdateFunc("proxy.config.url_remap.filename", url_rewrite_CB, (void *) FILE_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.proxy_name", url_rewrite_CB, (void *) TSNAME_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.reverse_proxy.enabled", url_rewrite_CB, (void *) REVERSE_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.admin.autoconf_port", url_rewrite_CB, (void *) AC_PORT_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.url_remap.default_to_server_pac", url_rewrite_CB, (void *) DEFAULT_TO_PAC_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.url_remap.default_to_server_pac_port", url_rewrite_CB, (void *) DEFAULT_TO_PAC_PORT_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.url_remap.url_remap_mode", url_rewrite_CB, (void *) URL_REMAP_MODE_CHANGED);
+  REC_RegisterConfigUpdateFunc("proxy.config.http.referer_default_redirect", url_rewrite_CB, (void *) HTTP_DEFAULT_REDIRECT_CHANGED);
+  return 0;
+}
+
+// TODO: This function needs to be rewritten (or replaced) with something that uses the new
+// Remap Processor properly. Right now, we effectively don't support "remap" rules on a few
+// odd ball configs, for example if you use the "CONNECT" method, or if you set
+// set proxy.config.url_remap.url_remap_mode to "2" (which is a completely undocumented "feature").
+bool
+request_url_remap(HttpTransact::State * /* s ATS_UNUSED */, HTTPHdr * /* request_header ATS_UNUSED */,
+                  char ** /* redirect_url ATS_UNUSED */, unsigned int /* filter_mask ATS_UNUSED */)
+{
+  return false;
+  // return rewrite_table ? rewrite_table->Remap(s, request_header, redirect_url, orig_url, tag, filter_mask) : false;
+}
+
+/**
+   This function is used to figure out if a URL needs to be remapped
+   according to the rules in remap.config.
+*/
+mapping_type
+request_url_remap_redirect(HTTPHdr *request_header, URL *redirect_url)
+{
+  return rewrite_table ? rewrite_table->Remap_redirect(request_header, redirect_url) : NONE;
+}
+
+bool
+response_url_remap(HTTPHdr *response_header)
+{
+  return rewrite_table ? rewrite_table->ReverseMap(response_header) : false;
+}
+ 
+
+//
+//
+//  End API Functions
+//
+
+/** Used to read the remap.config file after the manager signals a change. */
+struct UR_UpdateContinuation;
+typedef int (UR_UpdateContinuation::*UR_UpdContHandler) (int, void *);
+struct UR_UpdateContinuation: public Continuation
+{
+  int file_update_handler(int /* etype ATS_UNUSED */, void * /* data ATS_UNUSED */)
+  {
+    reloadUrlRewrite();
+    delete this;
+    return EVENT_DONE;
+  }
+  UR_UpdateContinuation(ProxyMutex * m)
+    : Continuation(m)
+  {
+    SET_HANDLER((UR_UpdContHandler) & UR_UpdateContinuation::file_update_handler);
+  }
+};
+
+/**
+  Called when the remap.config file changes. Since it called infrequently,
+  we do the load of new file as blocking I/O and lock aquire is also
+  blocking.
+
+*/
+void
+reloadUrlRewrite()
+{
+  UrlRewrite *newTable;
+
+  Debug("url_rewrite", "remap.config updated, reloading...");
+  newTable = new UrlRewrite();
+  if (newTable->is_valid()) {
+    new_Deleter(rewrite_table, URL_REWRITE_TIMEOUT);
+    Debug("url_rewrite", "remap.config done reloading!");
+    ink_atomic_swap(&rewrite_table, newTable);
+  } else {
+    static const char* msg = "failed to reload remap.config, not replacing!";
+    delete newTable;
+    Debug("url_rewrite", "%s", msg);
+    Warning("%s", msg);
+  }
+}
+
+int
+url_rewrite_CB(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */, RecData data, void *cookie)
+{
+  int my_token = (int) (long) cookie;
+
+  switch (my_token) {
+  case REVERSE_CHANGED:
+    rewrite_table->SetReverseFlag(data.rec_int);
+    break;
+
+  case TSNAME_CHANGED:
+  case DEFAULT_TO_PAC_CHANGED:
+  case DEFAULT_TO_PAC_PORT_CHANGED:
+  case FILE_CHANGED:
+  case HTTP_DEFAULT_REDIRECT_CHANGED:
+    eventProcessor.schedule_imm(new UR_UpdateContinuation(reconfig_mutex), ET_TASK);
+    break;
+
+  case AC_PORT_CHANGED:
+    // The AutoConf port does not current change on manager except at restart
+    break;
+
+  case URL_REMAP_MODE_CHANGED:
+    // You need to restart TS.
+    break;
+
+  default:
+    ink_assert(0);
+    break;
+  }
+
+  return 0;
+}
+
diff --git a/proxy/ReverseProxy.h b/proxy/ReverseProxy.h
new file mode 100644
index 00000000..5019ba8c
--- /dev/null
+++ b/proxy/ReverseProxy.h
@@ -0,0 +1,72 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  ReverseProxy.h - Interface to code necessary for Reverse Proxy
+ *                     (which mostly consists of general purpose
+ *                       hostname substitution in URLs)
+ *
+ *
+ ****************************************************************************/
+
+#ifndef _REVERSE_PROXY_H_
+#define _REVERSE_PROXY_H_
+
+#include "P_RecProcess.h"
+
+#include "ink_hash_table.h"
+#include "ink_defs.h"
+#include "HttpTransact.h"
+#include "RemapPluginInfo.h"
+#include "UrlRewrite.h"
+#include "UrlMapping.h"
+
+#define EMPTY_PORT_MAPPING (int32_t)~0
+
+class url_mapping;
+struct host_hdr_info;
+
+// Variables for the CDN URL Remapping Feature
+extern int url_remap_mode;
+
+extern UrlRewrite *rewrite_table;
+extern remap_plugin_info *remap_pi_list;
+
+// API Functions
+int init_reverse_proxy();
+
+// Both Return true if a remapping was made and false otherwise
+// ebalsa@ Y! -- this happens in the remapProcessor now for the reverse proxy case (not CDN or BlindTunnel)
+bool request_url_remap(HttpTransact::State *s, HTTPHdr *request_header, char **redirect_url,
+                       unsigned int filter_mask = URL_REMAP_FILTER_NONE);
+
+mapping_type request_url_remap_redirect(HTTPHdr *request_header, URL *redirect_url);
+bool response_url_remap(HTTPHdr *response_header);
+
+// Reload Functions
+void reloadUrlRewrite();
+
+int url_rewrite_CB(const char *name, RecDataT data_type, RecData data, void *cookie);
+
+#endif
diff --git a/proxy/Show.h b/proxy/Show.h
new file mode 100644
index 00000000..0a532888
--- /dev/null
+++ b/proxy/Show.h
@@ -0,0 +1,147 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Show.h
+
+
+ ****************************************************************************/
+
+#ifndef _Show_h_
+#define _Show_h_
+
+#include "StatPages.h"
+
+#define STREQ_PREFIX(_x,_s) (!strncasecmp(_x,_s,sizeof(_s)-1))
+
+struct ShowCont;
+typedef int (ShowCont::*ShowContEventHandler) (int event, Event * data);
+struct ShowCont: public Continuation
+{
+private:
+  char *buf, *start, *ebuf;
+
+public:
+  Action action;
+  char *sarg;
+
+  int show(const char *s, ...)
+  {
+    va_list aap, va_scratch;
+    ptrdiff_t avail = ebuf - buf;
+    ptrdiff_t needed;
+
+    va_start(aap, s);
+    va_copy(va_scratch, aap);
+    needed = vsnprintf(buf, avail, s, va_scratch);
+    va_end(va_scratch);
+
+    if (needed >= avail) {
+      ptrdiff_t bufsz = ebuf - start;
+      ptrdiff_t used = buf - start;
+
+      Debug("cache_inspector", "needed %d bytes, reallocating to %d bytes",
+          (int)needed, (int)bufsz + (int)needed);
+
+      bufsz += ROUNDUP(needed, ats_pagesize());
+      start = (char *)ats_realloc(start, bufsz);
+      ebuf = start + bufsz;
+      buf = start + used;
+      avail = ebuf - buf;
+
+      needed = vsnprintf(buf, avail, s, aap);
+      va_end(aap);
+
+      if (needed >= avail) {
+        Debug("cache_inspector", "needed %d bytes, but had only %d",
+          (int)needed, (int)avail + (int)needed);
+        return EVENT_DONE;
+      }
+    }
+
+    buf += needed;
+    return EVENT_CONT;
+  }
+
+#define CHECK_SHOW(_x) if (_x == EVENT_DONE) return complete_error(event,e);
+
+  int complete(int event, Event * e)
+  {
+    CHECK_SHOW(show("</BODY>\n</HTML>\n"));
+    if (!action.cancelled) {
+      StatPageData data(start, buf - start);
+      action.continuation->handleEvent(STAT_PAGE_SUCCESS, &data);
+      start = 0;
+    } else {
+      ats_free(start);
+      start = NULL;
+    }
+    return done(VIO::CLOSE, event, e);
+  }
+
+  int complete_error(int event, Event * e)
+  {
+    ats_free(start);
+    start = NULL;
+    if (!action.cancelled)
+      action.continuation->handleEvent(STAT_PAGE_FAILURE, NULL);
+    return done(VIO::ABORT, event, e);
+  }
+
+  int begin(const char *name)
+  {
+    return show("<HTML>\n<HEAD><TITLE>%s</TITLE>\n"
+                "<BODY BGCOLOR=\"#ffffff\" FGCOLOR=\"#00ff00\">\n" "<H1>%s</H1>\n", name, name);
+  }
+
+  int showError(int event, Event * e)
+  {
+    return complete_error(event, e);
+  }
+
+  virtual int done(int /* e ATS_UNUSED */, int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+  {
+    delete this;
+    return EVENT_DONE;
+  }
+
+  ShowCont(Continuation * c, HTTPHdr * /* h ATS_UNUSED */)
+    : Continuation(NULL), sarg(0) {
+    size_t sz = ats_pagesize();
+
+    mutex = c->mutex;
+    action = c;
+    buf = (char *)ats_malloc(sz);
+    start = buf;
+    ebuf = buf + sz;
+  }
+
+  ~ShowCont() {
+    ats_free(sarg);
+    ats_free(start);
+  }
+};
+
+
+#endif
diff --git a/proxy/SocksProxy.cc b/proxy/SocksProxy.cc
new file mode 100644
index 00000000..1658dbbb
--- /dev/null
+++ b/proxy/SocksProxy.cc
@@ -0,0 +1,579 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  This implements SOCKS server. We intecept the http traffic and send it
+  through HTTP. Others are tunneled through directly to the socks server.
+
+
+*/
+#include "libts.h"
+#include "StatSystem.h"
+#include "P_Net.h"
+#include "I_OneWayTunnel.h"
+#include "HttpSessionAccept.h"
+
+enum
+{
+  socksproxy_http_connections_stat,
+  socksproxy_tunneled_connections_stat,
+
+  socksproxy_stat_count
+};
+static RecRawStatBlock *socksproxy_stat_block;
+
+#define SOCKSPROXY_INC_STAT(x) \
+	RecIncrRawStat(socksproxy_stat_block, mutex->thread_holding, x)
+
+struct SocksProxy: public Continuation
+{
+  typedef int (SocksProxy::*EventHandler) (int event, void *data);
+
+  enum
+  { SOCKS_INIT = 1, SOCKS_ACCEPT, AUTH_DONE, SERVER_TUNNEL,
+    HTTP_REQ, RESP_TO_CLIENT, ALL_DONE, SOCKS_ERROR
+  };
+
+    SocksProxy()
+  : Continuation(),
+    clientVC(0), clientVIO(0), buf(0), timeout(0),
+    auth_handler(0), version(0), state(SOCKS_INIT), recursion(0), pending_action(NULL)
+  {
+  }
+   ~SocksProxy()
+  {
+  }
+
+
+  //int startEvent(int event, void * data);
+  int mainEvent(int event, void *data);
+  int setupHttpRequest(unsigned char *p);
+  //int setupServerTunnel(unsigned char * p);
+
+  int sendResp(bool granted);
+
+  void init(NetVConnection * netVC);
+  void free();
+
+private:
+
+  NetVConnection * clientVC;
+  VIO *clientVIO;
+
+  MIOBuffer *buf;
+  IOBufferReader *reader;
+  Event *timeout;
+
+  SocksAuthHandler auth_handler;
+
+  unsigned char version;
+
+  int state;
+  int recursion;
+  Action *pending_action;
+};
+
+ClassAllocator<SocksProxy> socksProxyAllocator("socksProxyAllocator");
+
+void
+SocksProxy::init(NetVConnection * netVC)
+{
+  mutex = new_ProxyMutex();
+  buf = new_MIOBuffer();
+  reader = buf->alloc_reader();
+
+  MUTEX_LOCK(lock, mutex, this_ethread());
+
+  SET_HANDLER((EventHandler) & SocksProxy::mainEvent);
+
+  mainEvent(NET_EVENT_ACCEPT, netVC);
+}
+
+void
+SocksProxy::free()
+{
+  if (buf)
+    free_MIOBuffer(buf);
+
+  mutex = NULL;
+
+  socksProxyAllocator.free(this);
+}
+
+int
+SocksProxy::mainEvent(int event, void *data)
+{
+  int ret = EVENT_DONE;
+  unsigned char *p;
+
+  VIO *vio;
+  int64_t n_read_avail;
+  //int n_consume;
+
+  recursion++;
+
+  switch (event) {
+
+  case NET_EVENT_ACCEPT:
+    state = SOCKS_ACCEPT;
+    Debug("SocksProxy", "Proxy got accept event\n");
+
+    clientVC = (NetVConnection *) data;
+    clientVC->socks_addr.reset();
+    //Fall through:
+  case VC_EVENT_WRITE_COMPLETE:
+
+    switch (state) {
+    case HTTP_REQ:{
+      HttpSessionAccept::Options ha_opt;
+      //This is a WRITE_COMPLETE. vio->nbytes == vio->ndone is true
+
+      SOCKSPROXY_INC_STAT(socksproxy_http_connections_stat);
+      Debug("SocksProxy", "Handing over the HTTP request\n");
+
+      ha_opt.transport_type = clientVC->attributes;
+      HttpSessionAccept http_accept(ha_opt);
+      http_accept.mainEvent(NET_EVENT_ACCEPT, clientVC);
+      state = ALL_DONE;
+      break;
+      }
+
+    case RESP_TO_CLIENT:
+      state = SOCKS_ERROR;
+      break;
+
+    default:
+      buf->reset();
+      timeout = this_ethread()
+        ->schedule_in(this, HRTIME_SECONDS(netProcessor.socks_conf_stuff->socks_timeout));
+      clientVC->do_io_read(this, INT64_MAX, buf);
+    }
+
+    break;
+
+  case VC_EVENT_WRITE_READY:
+    Debug("SocksProxy", "Received unexpected write_ready\n");
+    break;
+
+  case VC_EVENT_READ_COMPLETE:
+    Debug("SocksProxy", "Oops! We should never get Read_Complete.\n");
+    // FALLTHROUGH
+  case VC_EVENT_READ_READY:{
+      unsigned char *port_ptr = 0;
+
+      ret = EVENT_CONT;
+      vio = (VIO *) data;
+
+      n_read_avail = reader->block_read_avail();
+      ink_assert(n_read_avail == reader->read_avail());
+      p = (unsigned char *) reader->start();
+
+      if (n_read_avail >= 2) {
+
+        Debug(state == SOCKS_ACCEPT ? "SocksProxy" : "", "Accepted connection from a version %d client\n", (int) p[0]);
+
+        //Most of the time request is just a single packet
+        switch (p[0]) {
+
+        case SOCKS4_VERSION:
+          ink_assert(state == SOCKS_ACCEPT);
+
+          if (n_read_avail > 8) {
+            //read the user name
+            int i = 8;
+            while (p[i] != 0 && n_read_avail > i)
+              i++;
+
+            if (p[i] == 0) {
+              port_ptr = &p[2];
+              clientVC->socks_addr.type = SOCKS_ATYPE_IPV4;
+              reader->consume(i + 1);
+              //n_consume = i+1;
+              ret = EVENT_DONE;
+            }
+          }
+          break;
+
+        case SOCKS5_VERSION:
+
+          if (state == SOCKS_ACCEPT) {
+            if (n_read_avail >= 2 + p[1]) {
+              auth_handler = &socks5ServerAuthHandler;
+              ret = EVENT_DONE;
+            }
+          } else {
+            ink_assert(state == AUTH_DONE);
+
+            if (n_read_avail >= 5) {
+              int req_len;
+
+              switch (p[3]) {
+              case SOCKS_ATYPE_IPV4:
+                req_len = 10;
+                break;
+              case SOCKS_ATYPE_FQHN:
+                req_len = 7 + p[4];
+                break;
+              case SOCKS_ATYPE_IPV6:
+                req_len = 22;
+                break;
+              default:
+                req_len = INT_MAX;
+                Debug("SocksProxy", "Illegal address type(%d)\n", (int) p[3]);
+              }
+
+              if (n_read_avail >= req_len) {
+                port_ptr = &p[req_len - 2];
+                clientVC->socks_addr.type = p[3];
+                auth_handler = NULL;
+                reader->consume(req_len);
+                ret = EVENT_DONE;
+              }
+            }
+          }
+          break;
+
+        default:
+          Warning("Wrong version for Socks: %d\n", p[0]);
+          state = SOCKS_ERROR;
+        }
+      }
+
+      if (ret == EVENT_DONE) {
+        timeout->cancel(this);
+        timeout = 0;
+
+        if (auth_handler) {
+
+          /* disable further reads */
+          vio->nbytes = vio->ndone;
+
+          //There is some auth stuff left.
+          if (invokeSocksAuthHandler(auth_handler, SOCKS_AUTH_READ_COMPLETE, p) >= 0) {
+            buf->reset();
+            p = (unsigned char *) buf->start();
+
+            int n_bytes = invokeSocksAuthHandler(auth_handler,
+                                                 SOCKS_AUTH_FILL_WRITE_BUF, p);
+            ink_assert(n_bytes > 0);
+
+            buf->fill(n_bytes);
+
+            clientVC->do_io_write(this, n_bytes, reader, 0);
+
+            state = AUTH_DONE;
+          } else {
+            Debug("SocksProxy", "Auth_handler returned error\n");
+            state = SOCKS_ERROR;
+          }
+
+        } else {
+          int port = port_ptr[0] * 256 + port_ptr[1];
+          version = p[0];
+
+          if (port == netProcessor.socks_conf_stuff->http_port && p[1] == SOCKS_CONNECT) {
+
+            /* disable further reads */
+            vio->nbytes = vio->ndone;
+
+            ret = setupHttpRequest(p);
+            sendResp(true);
+            state = HTTP_REQ;
+
+          } else {
+            SOCKSPROXY_INC_STAT(socksproxy_tunneled_connections_stat);
+            Debug("SocksProxy", "Tunnelling the connection for port %d", port);
+
+            if (clientVC->socks_addr.type != SOCKS_ATYPE_IPV4) {
+              //We dont support other kinds of addresses for tunnelling
+              //if this is a hostname we could do host look up here
+              mainEvent(NET_EVENT_OPEN_FAILED, NULL);
+              break;
+            }
+
+            uint32_t ip;
+            struct sockaddr_in addr;
+
+            memcpy(&ip, &p[4], 4);
+            ats_ip4_set(&addr, ip, htons(port));
+
+            state = SERVER_TUNNEL;
+            clientVIO = vio;    // used in the tunnel
+
+            //tunnel the connection.
+
+            NetVCOptions vc_options;
+            vc_options.socks_support = p[1];
+            vc_options.socks_version = version;
+
+            Action *action = netProcessor.connect_re(this, ats_ip_sa_cast(&addr), &vc_options);
+            if (action != ACTION_RESULT_DONE) {
+              ink_assert(pending_action == NULL);
+              pending_action = action;
+            }
+          }
+        }
+      }                         //if (ret == EVENT_DONE)
+
+      break;
+    }
+
+  case NET_EVENT_OPEN:{
+      pending_action = NULL;
+      ink_assert(state == SERVER_TUNNEL);
+      Debug("SocksProxy", "open to Socks server succeeded\n");
+
+      NetVConnection *serverVC;
+      serverVC = (NetVConnection *) data;
+
+      OneWayTunnel *c_to_s = OneWayTunnel::OneWayTunnel_alloc();
+      OneWayTunnel *s_to_c = OneWayTunnel::OneWayTunnel_alloc();
+
+      c_to_s->init(clientVC, serverVC, NULL, clientVIO, reader);
+      s_to_c->init(serverVC, clientVC, /*aCont = */ NULL, 0 /*best guess */ ,
+                   c_to_s->mutex);
+
+      OneWayTunnel::SetupTwoWayTunnel(c_to_s, s_to_c);
+
+      buf = 0;                  // do not free buf. Tunnel will do that.
+      state = ALL_DONE;
+      break;
+    }
+
+  case NET_EVENT_OPEN_FAILED:
+    pending_action = NULL;
+    sendResp(false);
+    state = RESP_TO_CLIENT;
+    Debug("SocksProxy", "open to Socks server failed\n");
+    break;
+
+  case EVENT_INTERVAL:
+    timeout = 0;
+    Debug("SocksProxy", "SocksProxy timeout, state = %d\n", state);
+    state = SOCKS_ERROR;
+    break;
+
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_EOS:
+    Debug("SocksProxy", "VC_EVENT (state: %d error: %s)\n", state, get_vc_event_name(event));
+    state = SOCKS_ERROR;
+    break;
+
+  default:
+    ink_assert(!"bad case value\n");
+    state = SOCKS_ERROR;
+  }
+
+  if (state == SOCKS_ERROR) {
+    if (pending_action)
+      pending_action->cancel();
+
+    if (timeout)
+      timeout->cancel(this);
+
+    if (clientVC) {
+      Debug("SocksProxy", "Closing clientVC on error\n");
+      clientVC->do_io_close();
+      clientVC = NULL;
+    }
+
+    state = ALL_DONE;
+  }
+
+  recursion--;
+
+  if (state == ALL_DONE && recursion == 0) {
+    free();
+  }
+
+  return ret;
+}
+
+int
+SocksProxy::sendResp(bool granted)
+{
+  int n_bytes;
+
+  // In SOCKS 4, IP addr and Dest Port fields are ignored.
+  // In SOCKS 5, IP addr and Dest Port are the ones we use to connect to the
+  // real host. In our case, it does not make sense, since we may not
+  // connect at all. Set these feilds to zeros. Any socks client which uses
+  // these breaks caching.
+
+
+  buf->reset();
+  unsigned char *p = (unsigned char *) buf->start();
+
+  if (version == SOCKS4_VERSION) {
+    p[0] = 0;
+    p[1] = (granted) ? SOCKS4_REQ_GRANTED : SOCKS4_CONN_FAILED;
+    n_bytes = 8;
+  } else {
+    p[0] = SOCKS5_VERSION;
+    p[1] = (granted) ? SOCKS5_REQ_GRANTED : SOCKS5_CONN_FAILED;
+    p[2] = 0;
+    p[3] = SOCKS_ATYPE_IPV4;
+    p[4] = p[5] = p[6] = p[7] = p[8] = p[9] = 0;
+    n_bytes = 10;
+  }
+
+  buf->fill(n_bytes);
+  clientVC->do_io_write(this, n_bytes, reader, 0);
+
+  return n_bytes;
+}
+
+
+int
+SocksProxy::setupHttpRequest(unsigned char *p)
+{
+  int ret = EVENT_DONE;
+
+  SocksAddrType *a = &clientVC->socks_addr;
+
+  //read the ip addr buf
+  //In both SOCKS4 and SOCKS5 addr starts after 4 octets
+  switch (a->type) {
+
+  case SOCKS_ATYPE_IPV4:
+    a->addr.ipv4[0] = p[4];
+    a->addr.ipv4[1] = p[5];
+    a->addr.ipv4[2] = p[6];
+    a->addr.ipv4[3] = p[7];
+    break;
+
+  case SOCKS_ATYPE_FQHN:
+    //This is stored as a zero terminicated string
+    a->addr.buf = (unsigned char *)ats_malloc(p[4] + 1);
+    memcpy(a->addr.buf, &p[5], p[4]);
+    a->addr.buf[p[4]] = 0;
+    break;
+  case SOCKS_ATYPE_IPV6:
+    //a->addr.buf = (unsigned char *)ats_malloc(16);
+    //memcpy(a->addr.buf, &p[4], 16);
+    //dont think we will use "proper" IPv6 addr anytime soon.
+    //just use the last 4 octets as IPv4 addr:
+    a->type = SOCKS_ATYPE_IPV4;
+    a->addr.ipv4[0] = p[16];
+    a->addr.ipv4[0] = p[17];
+    a->addr.ipv4[0] = p[18];
+    a->addr.ipv4[0] = p[19];
+
+    break;
+  default:
+    ink_assert(!"bad case value");
+  }
+
+  return ret;
+}
+
+
+
+
+static void
+new_SocksProxy(NetVConnection * netVC)
+{
+  SocksProxy *proxy = socksProxyAllocator.alloc();
+  proxy->init(netVC);
+}
+
+struct SocksAccepter: public Continuation
+{
+
+  typedef int (SocksAccepter::*SocksAccepterHandler) (int, void *);
+
+  int mainEvent(int event, NetVConnection * netVC)
+  {
+
+    ink_assert(event == NET_EVENT_ACCEPT);
+    //Debug("Socks", "Accepter got ACCEPT event\n");
+
+    new_SocksProxy(netVC);
+
+    return EVENT_CONT;
+  }
+
+  //There is no state used we dont need a mutex
+  SocksAccepter():Continuation(NULL)
+  {
+    SET_HANDLER((SocksAccepterHandler) & SocksAccepter::mainEvent);
+  }
+};
+
+void
+start_SocksProxy(int port)
+{
+  Debug("SocksProxy", "Accepting SocksProxy connections on port %d\n", port);
+  NetProcessor::AcceptOptions opt;
+  opt.local_port = port;
+  netProcessor.main_accept(new SocksAccepter(), NO_FD, opt);
+
+  socksproxy_stat_block = RecAllocateRawStatBlock(socksproxy_stat_count);
+
+  if (socksproxy_stat_block) {
+    RecRegisterRawStat(socksproxy_stat_block, RECT_PROCESS,
+                       "proxy.process.socks.proxy.http_connections",
+                       RECD_INT, RECP_PERSISTENT, socksproxy_http_connections_stat, RecRawStatSyncCount);
+
+    RecRegisterRawStat(socksproxy_stat_block, RECT_PROCESS,
+                       "proxy.process.socks.proxy.tunneled_connections",
+                       RECD_INT, RECP_PERSISTENT, socksproxy_tunneled_connections_stat, RecRawStatSyncCount);
+  }
+}
+
+int
+socks5ServerAuthHandler(int event, unsigned char *p, void (**h_ptr) (void))
+{
+
+  int ret = 0;
+  //bool no_auth_needed=true;
+
+  switch (event) {
+
+  case SOCKS_AUTH_READ_COMPLETE:
+
+    ink_assert(p[0] == SOCKS5_VERSION);
+    Debug("SocksProxy", "Socks read initial auth info\n");
+    //do nothing
+    break;
+
+  case SOCKS_AUTH_FILL_WRITE_BUF:
+    Debug("SocksProxy", "No authentication is required\n");
+    p[0] = SOCKS5_VERSION;
+    p[1] = 0;                   //no authentication necessary
+    ret = 2;
+    // FALLTHROUGH
+  case SOCKS_AUTH_WRITE_COMPLETE:
+    //nothing to do
+    *h_ptr = NULL;
+    break;
+
+  default:
+    ink_assert(!"bad case value");
+    ret = -1;
+  }
+
+  return ret;
+}
diff --git a/proxy/StatPages.cc b/proxy/StatPages.cc
new file mode 100644
index 00000000..680e9755
--- /dev/null
+++ b/proxy/StatPages.cc
@@ -0,0 +1,279 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  StatPages.cc
+
+
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include "ProxyConfig.h"
+#include "StatPages.h"
+#include "HdrUtils.h"
+#include "MatcherUtils.h"
+
+#define MAX_STAT_PAGES      32
+
+
+// Globals
+StatPagesManager statPagesManager;
+
+static struct
+{
+  char *module;
+  StatPagesFunc func;
+} stat_pages[MAX_STAT_PAGES];
+
+static volatile int n_stat_pages = 0;
+
+void
+StatPagesManager::init()
+{
+  REC_EstablishStaticConfigInt32(m_enabled, "proxy.config.http_ui_enabled");
+}
+
+void
+StatPagesManager::register_http(const char *module, StatPagesFunc func)
+{
+  ink_release_assert(n_stat_pages < MAX_STAT_PAGES);
+
+  stat_pages[n_stat_pages].module = (char *)ats_malloc(strlen(module) + 3);
+  snprintf(stat_pages[n_stat_pages].module, strlen(module) + 3, "{%s}", module);
+  stat_pages[n_stat_pages++].func = func;
+}
+
+Action *
+StatPagesManager::handle_http(Continuation * cont, HTTPHdr * header)
+{
+  URL *url = header->url_get();
+
+  if (((m_enabled == 1 || m_enabled == 3) && is_cache_inspector_page(url)) ||
+      ((m_enabled == 2 || m_enabled == 3) && is_stat_page(url) && !is_cache_inspector_page(url))) {
+    int host_len;
+    char host[MAXDNAME + 1];
+    const char *h;
+    int i;
+
+    h = url->host_get(&host_len);
+    if (host_len > MAXDNAME)
+      host_len = MAXDNAME;
+    memcpy(host, h, host_len);
+    host[host_len] = '\0';
+    host_len = unescapifyStr(host);
+
+    for (i = 0; i < n_stat_pages; i++) {
+      if (ptr_len_cmp(host, host_len, stat_pages[i].module) == 0) {
+        return stat_pages[i].func(cont, header);
+      }
+    }
+  }
+
+  cont->handleEvent(STAT_PAGE_FAILURE, 0);
+  return ACTION_RESULT_DONE;
+}
+
+bool
+StatPagesManager::is_stat_page(URL * url)
+{
+  // This gets called from the state machine, so we should optimize here and not in caller.
+  if (m_enabled <= 0)
+    return false;
+
+  int length;
+  const char *h = url->host_get(&length);
+  char host[MAXDNAME + 1];
+
+  if (h == NULL || length < 2 || length > MAXDNAME)
+    return false;
+
+  memcpy(host, h, length);
+  host[length] = '\0';
+  length = unescapifyStr(host);
+
+  if ((host[0] == '{') && (host[length - 1] == '}'))
+    return true;
+
+  return false;
+}
+
+bool
+StatPagesManager::is_cache_inspector_page(URL * url)
+{
+  int length;
+  const char *h = url->host_get(&length);
+  char host[MAXDNAME + 1];
+
+  if (h == NULL || length < 2 || length > MAXDNAME)
+    return false;
+
+  memcpy(host, h, length);
+  host[length] = '\0';
+  length = unescapifyStr(host);
+
+  if (strncmp(host, "{cache}", length) == 0)
+    return true;
+  else
+    return false;
+
+}
+
+void
+BaseStatPagesHandler::resp_clear()
+{
+  ats_free(response);
+  response = NULL;
+  response_size = 0;
+  response_length = 0;
+}
+
+void
+BaseStatPagesHandler::resp_add(const char *fmt, ...)
+{
+  va_list args;
+  char buf[16384];
+  int length;
+  int size;
+
+  va_start(args, fmt);
+  length = vsnprintf(buf, 16384, fmt, args);
+  va_end(args);
+
+  size = response_size;
+  if (size == 0) {
+    size = 1024;
+  }
+  while ((response_length + length + 1) > size) {
+    size *= 2;
+  }
+
+  if (size != response_size) {
+    if (!response) {
+      response = (char *)ats_malloc(size);
+    } else {
+      response = (char *)ats_realloc(response, size);
+    }
+    response_size = size;
+  }
+
+  memcpy(&response[response_length], buf, length + 1);
+  response_length += length;
+}
+
+void
+BaseStatPagesHandler::resp_add_sep()
+{
+  resp_add("<hr width=\"100%%\">\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin(const char *title)
+{
+  resp_clear();
+  resp_add("<html>\n"
+           "<head><title>%s</title></head>\n"
+           "<body text=\"#000000\" bgcolor=\"#ffffff\" link=\"#0000ee\" vlink=\"#551a8b\" alink=\"#ff0000\">\n", title);
+}
+
+void
+BaseStatPagesHandler::resp_end()
+{
+  resp_add("</body>\n" "</html>\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin_numbered()
+{
+  resp_add("<ol>\n");
+}
+
+void
+BaseStatPagesHandler::resp_end_numbered()
+{
+  resp_add("</ol>\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin_unnumbered()
+{
+  resp_add("<ul>\n");
+}
+
+void
+BaseStatPagesHandler::resp_end_unnumbered()
+{
+  resp_add("</ul>\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin_item()
+{
+  resp_add("<li>\n");
+}
+
+void
+BaseStatPagesHandler::resp_end_item()
+{
+  resp_add("</li>\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin_table(int border, int columns, int percent)
+{
+  resp_add("<table border=%d cols=%d width=\"%d%%\">\n", border, columns, percent);
+}
+
+void
+BaseStatPagesHandler::resp_end_table()
+{
+  resp_add("</table>\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin_row()
+{
+  resp_add("<tr>\n");
+}
+
+void
+BaseStatPagesHandler::resp_end_row()
+{
+  resp_add("</tr>\n");
+}
+
+void
+BaseStatPagesHandler::resp_begin_column(int percent, const char *align)
+{
+  if (percent == -1) {
+    resp_add("<td %s%s>\n", align ? "align=" : "", align ? align : "");
+  } else {
+    resp_add("<td width=\"%d%%\" %s%s>\n", percent, align ? "align=" : "", align ? align : "");
+  }
+}
+
+void
+BaseStatPagesHandler::resp_end_column()
+{
+  resp_add("</td>\n");
+}
diff --git a/proxy/StatPages.h b/proxy/StatPages.h
new file mode 100644
index 00000000..8a49d535
--- /dev/null
+++ b/proxy/StatPages.h
@@ -0,0 +1,137 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  StatPages.h
+
+
+ ****************************************************************************/
+
+#ifndef _StatPages_h_
+#define _StatPages_h_
+#include "P_EventSystem.h"
+
+#include "HTTP.h"
+
+//              SPECIAL URLs
+//
+//
+// 1. Access from Browswers
+//
+//    By special URLS:
+//
+//      http://{module}/component/sub-component/request-type?arguments
+//
+//    Note how the hostname is the module to be queried with "{}" surrounding.
+//
+//    Running Example:
+//
+//      http://{http}/groups/dump?comp.compilers
+//
+// 2. What sort of things should be available?
+//
+//    A. The type of data should default to HTML or match the
+//       extension type e.g.:
+//
+//         http://{http}/groups/use_graph.gif?august
+//
+//    B. Each protocol/sybsystem should have their own information.
+//       For example
+
+#define STAT_PAGE_SUCCESS           STAT_PAGES_EVENTS_START+0
+#define STAT_PAGE_FAILURE           STAT_PAGES_EVENTS_START+1
+
+typedef Action *(*StatPagesFunc) (Continuation * cont, HTTPHdr * header);
+
+struct StatPageData
+{
+  char *data;
+  char *type;
+  int length;
+
+    StatPageData():data(NULL), type(NULL), length(0)
+  {
+  }
+  StatPageData(char *adata):data(adata), type(NULL)
+  {
+    length = strlen(adata);
+  }
+  StatPageData(char *adata, int alength):data(adata), type(NULL), length(alength)
+  {
+  }
+};
+
+struct StatPagesManager
+{
+  void init();
+
+  inkcoreapi void register_http(const char *hostname, StatPagesFunc func);
+
+  // Private
+  Action *handle_http(Continuation * cont, HTTPHdr * header);
+  bool is_stat_page(URL * url);
+  bool is_cache_inspector_page(URL * url);
+  int m_enabled;
+};
+
+inkcoreapi extern StatPagesManager statPagesManager;
+
+// Stole Pete's code for formatting the page and slapped it here
+//   for easy reuse
+class BaseStatPagesHandler:public Continuation
+{
+public:
+  BaseStatPagesHandler(ProxyMutex * amutex):Continuation(amutex), response(NULL), response_size(0), response_length(0)
+  {
+  };
+  ~BaseStatPagesHandler() {
+    resp_clear();
+  };
+
+protected:
+
+  inkcoreapi void resp_clear(void);
+  inkcoreapi void resp_add(const char *fmt, ...);
+  inkcoreapi void resp_add_sep(void);
+  inkcoreapi void resp_begin(const char *title);
+  inkcoreapi void resp_end(void);
+  void resp_begin_numbered(void);
+  void resp_end_numbered(void);
+  inkcoreapi void resp_begin_unnumbered(void);
+  inkcoreapi void resp_end_unnumbered(void);
+  inkcoreapi void resp_begin_item(void);
+  void resp_end_item(void);
+  inkcoreapi void resp_begin_table(int border, int columns, int percent);
+  inkcoreapi void resp_end_table();
+  inkcoreapi void resp_begin_row();
+  inkcoreapi void resp_end_row();
+  inkcoreapi void resp_begin_column(int percent = -1, const char *align = NULL);
+  inkcoreapi void resp_end_column();
+
+  char *response;
+  int response_size;
+  int response_length;
+};
+
+#endif
diff --git a/proxy/StatSystem.cc b/proxy/StatSystem.cc
new file mode 100644
index 00000000..efe6a84d
--- /dev/null
+++ b/proxy/StatSystem.cc
@@ -0,0 +1,786 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  StatSystem.cc --
+  Created On          : Fri Apr 3 19:41:39 1998
+ ****************************************************************************/
+#include "Main.h"
+#include "StatSystem.h"
+#include "P_EventSystem.h"
+#include "Error.h"
+#include "ProcessManager.h"
+#include "ProxyConfig.h"
+#include "StatPages.h"
+#include "HTTP.h"
+#include "I_Layout.h"
+
+// defines
+
+#define SNAP_USAGE_PERIOD         HRTIME_SECONDS(2)
+
+
+// variables
+
+#ifdef DEBUG
+ink_mutex http_time_lock;
+time_t last_http_local_time;
+#endif
+ink_stat_lock_t global_http_trans_stat_lock;
+ink_unprot_global_stat_t global_http_trans_stats[MAX_HTTP_TRANS_STATS];
+#ifndef USE_LOCKS_FOR_DYN_STATS
+inkcoreapi ink_unprot_global_stat_t global_dyn_stats[MAX_DYN_STATS - DYN_STAT_START];
+#else
+inkcoreapi ink_prot_global_stat_t global_dyn_stats[MAX_DYN_STATS - DYN_STAT_START];
+#endif
+
+Ptr<ProxyMutex> rusage_snap_mutex;
+struct rusage rusage_snap;
+struct rusage rusage_snap_old;
+ink_hrtime rusage_snap_time;
+ink_hrtime rusage_snap_time_old;
+int snap_stats_every = 60;
+
+ink_hrtime http_handler_times[MAX_HTTP_HANDLER_EVENTS];
+int http_handler_counts[MAX_HTTP_HANDLER_EVENTS];
+
+
+char snap_filename[PATH_NAME_MAX+1] = DEFAULT_SNAP_FILENAME;
+
+#define DEFAULT_PERSISTENT
+
+#ifndef DEFAULT_PERSISTENT
+static int persistent_stats[] = {
+  http_incoming_requests_stat
+};
+#else
+static int non_persistent_stats[] = {
+  ////////////////////////////
+  // Start of Cluster stats
+  ////////////////////////////
+  cluster_connections_open_stat,
+  cluster_connections_openned_stat,
+  cluster_con_total_time_stat,
+  cluster_ctrl_msgs_sent_stat,
+  cluster_slow_ctrl_msgs_sent_stat,
+  cluster_ctrl_msgs_recvd_stat,
+  cluster_slow_ctrl_msgs_recvd_stat,
+  cluster_ctrl_msgs_send_time_stat,
+  cluster_ctrl_msgs_recv_time_stat,
+  cluster_read_bytes_stat,
+  cluster_write_bytes_stat,
+  cluster_op_delayed_for_lock_stat,
+  cluster_connections_locked_stat,
+  cluster_connections_bumped_stat,
+  cluster_nodes_stat,
+  cluster_net_backup_stat,
+  cluster_machines_allocated_stat,
+  cluster_machines_freed_stat,
+  cluster_configuration_changes_stat,
+  cluster_delayed_reads_stat,
+  cluster_byte_bank_used_stat,
+  cluster_alloc_data_news_stat,
+  cluster_write_bb_mallocs_stat,
+  cluster_partial_reads_stat,
+  cluster_partial_writes_stat,
+  cluster_cache_outstanding_stat,
+  cluster_remote_op_timeouts_stat,
+  cluster_remote_op_reply_timeouts_stat,
+  cluster_chan_inuse_stat,
+  cluster_open_delays_stat,
+  cluster_open_delay_time_stat,
+  cluster_cache_callbacks_stat,
+  cluster_cache_callback_time_stat,
+  cluster_cache_rmt_callbacks_stat,
+  cluster_cache_rmt_callback_time_stat,
+  cluster_cache_lkrmt_callbacks_stat,
+  cluster_cache_lkrmt_callback_time_stat,
+  cluster_thread_steal_expires_stat,
+  cluster_local_connections_closed_stat,
+  cluster_local_connection_time_stat,
+  cluster_remote_connections_closed_stat,
+  cluster_remote_connection_time_stat,
+  cluster_rdmsg_assemble_time_stat,
+  cluster_ping_time_stat,
+  cluster_setdata_no_clustervc_stat,
+  cluster_setdata_no_tunnel_stat,
+  cluster_setdata_no_cachevc_stat,
+  cluster_setdata_no_cluster_stat,
+  cluster_vc_write_stall_stat,
+  cluster_no_remote_space_stat,
+  cluster_level1_bank_stat,
+  cluster_multilevel_bank_stat,
+  cluster_vc_cache_insert_lock_misses_stat,
+  cluster_vc_cache_inserts_stat,
+  cluster_vc_cache_lookup_lock_misses_stat,
+  cluster_vc_cache_lookup_hits_stat,
+  cluster_vc_cache_lookup_misses_stat,
+  cluster_vc_cache_scans_stat,
+  cluster_vc_cache_scan_lock_misses_stat,
+  cluster_vc_cache_purges_stat,
+  cluster_write_lock_misses_stat,
+  /////////////////////////////////////
+  // Start of Scheduled Update stats
+  /////////////////////////////////////
+  // DNS
+  //dns_success_time_stat
+};
+#endif
+
+#define _HEADER \
+DynamicStatsString_t DynamicStatsStrings[] = {
+
+#define _FOOTER };
+#define _D(_x) { _x, #_x },
+
+#include "DynamicStats.h"
+#undef _HEADER
+#undef _FOOTER
+#undef _D
+
+
+
+// functions
+
+static int
+persistent_stat(int i)
+{
+#ifndef DEFAULT_PERSISTENT
+  for (unsigned j = 0; j < countof(persistent_stats); j++)
+    if (persistent_stats[j] == i)
+      return 1;
+  return 0;
+#else
+  for (unsigned j = 0; j < countof(non_persistent_stats); j++)
+    if (non_persistent_stats[j] == i)
+      return 0;
+  return 1;
+#endif
+}
+
+static int
+open_stats_snap()
+{
+  int fd = socketManager.open(snap_filename,
+                              O_CREAT | O_RDWR | _O_ATTRIB_NORMAL);
+  if (fd < 0) {
+    Warning("unable to open %s: %s", snap_filename, strerror(-fd));
+    return -1;
+  }
+  return fd;
+}
+
+static void
+clear_stats()
+{
+  int i = 0;
+
+  int stats_size = MAX_HTTP_TRANS_STATS - NO_HTTP_TRANS_STATS - 1;
+  for (i = 0; i < stats_size; i++) {
+    if (persistent_stat(i + NO_HTTP_TRANS_STATS)) {
+      global_http_trans_stats[i].sum = 0;
+      global_http_trans_stats[i].count = 0;
+    }
+  }
+  stats_size = MAX_DYN_STATS - NO_DYN_STATS - 1;
+  for (i = 0; i < stats_size; i++) {
+    if (persistent_stat(i + NO_DYN_STATS)) {
+      global_dyn_stats[i].sum = 0;
+      global_dyn_stats[i].count = 0;
+    }
+  }
+
+  socketManager.unlink(snap_filename);
+  Debug("stats", "clear_stats: clearing statistics");
+}
+
+static void
+read_stats_snap()
+{
+  unsigned int version;
+  unsigned int version_read;
+  int count;
+  int fd = -1;
+  int i = 0;
+  int stats_size = -1;
+
+  version = STATS_MAJOR_VERSION;
+
+  if ((fd = open_stats_snap()) < 0)
+    goto Lmissmatch;
+
+  // read and verify snap
+  if (socketManager.read(fd, (char *) &version_read, sizeof(version_read))
+      != sizeof(version_read))
+    goto Lmissmatch;
+  if (version != version_read)
+    goto Lmissmatch;
+  stats_size = MAX_HTTP_TRANS_STATS - NO_HTTP_TRANS_STATS + MAX_DYN_STATS - NO_DYN_STATS;
+  if (socketManager.read(fd, (char *) &count, sizeof(count)) != sizeof(count))
+    goto Lmissmatch;
+  if (count != stats_size)
+    goto Lmissmatch;
+
+  stats_size = MAX_HTTP_TRANS_STATS - NO_HTTP_TRANS_STATS;
+  for (i = 0; i < stats_size; i++) {
+    if (socketManager.read(fd, (char *) &global_http_trans_stats[i].sum, sizeof(global_http_trans_stats[i].sum))
+        != sizeof(global_http_trans_stats[i].sum))
+      goto Lmissmatch;
+    if (socketManager.read(fd, (char *) &global_http_trans_stats[i].count, sizeof(global_http_trans_stats[i].count))
+        != sizeof(global_http_trans_stats[i].count))
+      goto Lmissmatch;
+  }
+  stats_size = MAX_DYN_STATS - NO_DYN_STATS;
+  for (i = 0; i < stats_size; i++) {
+    if (socketManager.read(fd, (char *) &global_dyn_stats[i].sum, sizeof(global_dyn_stats[i].sum))
+        != sizeof(global_dyn_stats[i].sum))
+      goto Lmissmatch;
+    if (socketManager.read(fd, (char *) &global_dyn_stats[i].count, sizeof(global_dyn_stats[i].count))
+        != sizeof(global_dyn_stats[i].count))
+      goto Lmissmatch;
+  }
+  Debug("stats", "read_stats_snap: read statistics");
+
+  // close(fd);
+  socketManager.close(fd);
+  return;
+
+Lmissmatch:
+  Note("clearing statistics");
+  clear_stats();
+  //close(fd);
+  socketManager.close(fd);
+}
+
+static void
+write_stats_snap()
+{
+  int fd = 0;
+  int version = STATS_MAJOR_VERSION;
+  char *buf = NULL;
+
+  if ((fd = open_stats_snap()) < 0)
+    goto Lerror;
+
+  {
+    int stats_size = MAX_HTTP_TRANS_STATS - NO_HTTP_TRANS_STATS + MAX_DYN_STATS - NO_DYN_STATS;
+    int buf_size = sizeof(unsigned int) * 3 + stats_size * (sizeof(global_dyn_stats[0].sum) + sizeof(global_dyn_stats[0].count));
+    buf = (char *)ats_malloc(buf_size);
+    char *p = buf;
+    int i = 0;
+
+    memcpy(p, (char *) &version, sizeof(version));
+    p += sizeof(version);
+    memcpy(p, (char *) &stats_size, sizeof(stats_size));
+    p += sizeof(stats_size);
+
+    stats_size = MAX_HTTP_TRANS_STATS - NO_HTTP_TRANS_STATS;
+    STAT_LOCK_ACQUIRE(&(global_http_trans_stat_lock));
+    for (i = 0; i < stats_size; i++) {
+      memcpy(p, (char *) &global_http_trans_stats[i].sum, sizeof(global_http_trans_stats[i].sum));
+      p += sizeof(global_http_trans_stats[i].sum);
+      memcpy(p, (char *) &global_http_trans_stats[i].count, sizeof(global_http_trans_stats[i].count));
+      p += sizeof(global_http_trans_stats[i].count);
+    }
+    STAT_LOCK_RELEASE(&(global_http_trans_stat_lock));
+    stats_size = MAX_DYN_STATS - NO_DYN_STATS;
+    for (i = 0; i < stats_size; i++) {
+      // INKqa09981 (Clearing Host Database and DNS Statistics)
+      ink_statval_t count, sum;
+      READ_GLOBAL_DYN_STAT(i, count, sum);
+      memcpy(p, (char *) &sum, sizeof(sum));
+      p += sizeof(sum);
+      memcpy(p, (char *) &count, sizeof(count));
+      p += sizeof(count);
+    }
+    memcpy(p, (char *) &version, sizeof(version));
+    p += sizeof(version);
+
+    if (socketManager.write(fd, buf, buf_size) != buf_size)
+      goto Lerror;
+  }
+  ats_free(buf);
+  //close(fd);
+  socketManager.close(fd);
+  Debug("stats", "snapped stats");
+  return;
+Lerror:
+  ats_free(buf);
+  Warning("unable to snap statistics");
+  //close(fd);
+  socketManager.close(fd);
+}
+
+struct SnapStatsContinuation: public Continuation
+{
+  int mainEvent(int /* event ATS_UNUSED */, Event *e ATS_UNUSED)
+  {
+    write_stats_snap();
+    e->schedule_every(HRTIME_SECONDS(snap_stats_every));
+    return EVENT_CONT;
+  }
+  SnapStatsContinuation():Continuation(new_ProxyMutex())
+  {
+    SET_HANDLER(&SnapStatsContinuation::mainEvent);
+  }
+};
+
+static void
+take_rusage_snap()
+{
+  rusage_snap_old = rusage_snap;
+  rusage_snap_time_old = rusage_snap_time;
+  int retries = 3;
+  while (retries--) {
+    if (getrusage(RUSAGE_SELF, &rusage_snap) < 0) {
+      if (errno == EINTR)
+        continue;
+      Note("getrusage [%d %s]", errno, strerror(errno));
+    } else
+      rusage_snap_time = ink_get_hrtime();
+    break;
+  }
+  Debug("rusage", "took rusage snap %" PRId64"", rusage_snap_time);
+}
+
+struct SnapCont;
+typedef int (SnapCont::*SnapContHandler) (int, void *);
+
+struct SnapCont: public Continuation
+{
+  int mainEvent(int /* event ATS_UNUSED */, Event * e)
+  {
+    take_rusage_snap();
+    e->schedule_every(SNAP_USAGE_PERIOD);
+    return EVENT_CONT;
+  }
+  SnapCont(ProxyMutex * m):Continuation(m)
+  {
+    SET_HANDLER((SnapContHandler) & SnapCont::mainEvent);
+  }
+};
+
+void
+start_stats_snap()
+{
+  eventProcessor.schedule_every(new SnapCont(rusage_snap_mutex), SNAP_USAGE_PERIOD, ET_CALL);
+  if (snap_stats_every)
+    eventProcessor.schedule_every(new SnapStatsContinuation(), HRTIME_SECONDS(snap_stats_every), ET_CALL);
+  else
+    Warning("disabling statistics snap");
+}
+
+static Action *
+stat_callback(Continuation * cont, HTTPHdr * header)
+{
+  URL *url;
+  int length;
+  const char *path;
+  char *result = NULL;
+  int result_size;
+  bool empty;
+
+  url = header->url_get();
+  path = url->path_get(&length);
+
+  char *buffer = NULL;
+  int buffer_len = 0;
+  int num_prefix_buffer;
+
+  char *var_prefix = (char *)alloca((length + 1) * sizeof(char));
+
+  memset(var_prefix, 0, ((length + 1) * sizeof(char)));
+  if (path && length > 0)
+    ink_strlcpy(var_prefix, path, length + 1);
+
+  num_prefix_buffer = RecGetRecordPrefix_Xmalloc(var_prefix, &buffer, &buffer_len);
+  empty = (num_prefix_buffer == 0);
+
+  if (!empty) {
+    result_size = (buffer_len + 16) * sizeof(char);
+    result = (char *)ats_malloc(result_size);
+    memset(result, 0, result_size);
+
+    snprintf(result, result_size - 7, "<pre>\n%s", buffer);
+  }
+
+
+  if (!empty) {
+    StatPageData data;
+
+    ink_strlcat(result, "</pre>\n", result_size);
+
+    data.data = result;
+    data.length = strlen(result);
+    cont->handleEvent(STAT_PAGE_SUCCESS, &data);
+  } else {
+    ats_free(result);
+    cont->handleEvent(STAT_PAGE_FAILURE, NULL);
+  }
+  ats_free(buffer);
+
+  return ACTION_RESULT_DONE;
+}
+
+static Action *
+testpage_callback(Continuation * cont, HTTPHdr *)
+{
+  const int buf_size = 64000;
+  char *buffer = (char *)ats_malloc(buf_size);
+
+  for (int i = 0; i < buf_size; i++) {
+    buffer[i] = (char) ('a' + (i % 26));
+  }
+  buffer[buf_size - 1] = '\0';
+
+  StatPageData data;
+
+  data.data = buffer;
+  data.length = strlen(buffer);
+  cont->handleEvent(STAT_PAGE_SUCCESS, &data);
+
+  return ACTION_RESULT_DONE;
+}
+
+static void
+testpage_callback_init()
+{
+  statPagesManager.register_http("test", testpage_callback);
+}
+
+void
+initialize_all_global_stats()
+{
+  int istat, i;
+  char snap_file[PATH_NAME_MAX + 1];
+  xptr<char> rundir(RecConfigReadRuntimeDir());
+
+  if (access(rundir, R_OK | W_OK) == -1) {
+    Warning("Unable to access() local state directory '%s': %d, %s", (const char *)rundir, errno, strerror(errno));
+    Warning(" Please set 'proxy.config.local_state_dir' to allow statistics collection");
+  }
+  REC_ReadConfigString(snap_file, "proxy.config.stats.snap_file", PATH_NAME_MAX);
+  Layout::relative_to(snap_filename, sizeof(snap_filename), (const char *)rundir, snap_file);
+  Debug("stats", "stat snap filename %s", snap_filename);
+
+  statPagesManager.register_http("stat", stat_callback);
+
+  testpage_callback_init();
+
+  read_stats_snap();
+  rusage_snap_mutex = new_ProxyMutex();
+  take_rusage_snap();
+  take_rusage_snap();           // fill in _old as well
+
+  STAT_LOCK_INIT(&(global_http_trans_stat_lock), "Global Http Stats Lock");
+
+  for (istat = NO_HTTP_TRANS_STATS; istat < MAX_HTTP_TRANS_STATS; istat++) {
+    if (!persistent_stat(istat)) {
+      INITIALIZE_GLOBAL_TRANS_STATS(global_http_trans_stats[istat]);
+    }
+  }
+
+  for (istat = NO_DYN_STATS; istat < MAX_DYN_STATS; istat++) {
+    if (!persistent_stat(istat)) {
+      i = istat - DYN_STAT_START;
+      INITIALIZE_GLOBAL_DYN_STATS(global_dyn_stats[i], "Dyn Stat Lock");
+    }
+  }
+
+  // TODO: HMMMM, wtf does this do? The following is that this 
+  // function does:
+  // ink_atomic_swap(&this->f_update_lock, (void *) func)
+  //
+  // pmgmt->record_data->registerUpdateLockFunc(tmp_stats_lock_function);
+
+#ifdef DEBUG
+  ink_mutex_init(&http_time_lock, "Http Time Function Lock");
+  last_http_local_time = 0;
+#endif
+
+  clear_http_handler_times();
+}
+
+//void *
+//tmp_stats_lock_function(UpdateLockAction action)
+//{
+//  stats_lock_function((void *) (&global_http_trans_stat_lock), action);
+//
+//  return NULL;
+//}
+
+//void *
+//stats_lock_function(void *data, UpdateLockAction action)
+//{
+//  if (action == UPDATE_LOCK_ACQUIRE) {
+//    STAT_LOCK_ACQUIRE((ink_stat_lock_t *) data);
+//  } else {
+//    STAT_LOCK_RELEASE((ink_stat_lock_t *) data);
+//  }
+//
+//  return NULL;
+//}
+
+void *
+dyn_stats_int_msecs_to_float_seconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_DYN_STAT((long) data, count, sum);
+
+  float r;
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = ((float) sum) / 1000.0;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+void *
+dyn_stats_count_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_DYN_STAT((long) data, count, sum);
+  (void)sum;
+  ink_atomic_swap((ink_statval_t *) res, count);
+  return res;
+}
+
+void *
+dyn_stats_sum_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_DYN_STAT((long) data, count, sum);
+  (void)count;
+  ink_atomic_swap((ink_statval_t *) res, sum);
+  return res;
+}
+
+void *
+dyn_stats_avg_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_DYN_STAT((long) data, count, sum);
+  if (count == 0) {
+    *(float *) res = 0.0;
+  } else {
+    *(float *) res = (float) sum / (float) count;
+  }
+  return res;
+}
+
+void *
+dyn_stats_fsum_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_DYN_STAT((long) data, count, sum);
+  (void)count;
+  *(float *) res = (double) sum;
+  return res;
+}
+
+void *
+dyn_stats_favg_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_DYN_STAT((long) data, count, sum);
+  if (count == 0) {
+    *(float *) res = 0.0;
+  } else {
+    *(float *) res = (double) sum / (double) count;
+  }
+  return res;
+}
+
+void *
+dyn_stats_time_seconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  float r;
+  READ_DYN_STAT((long) data, count, sum);
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = (float) sum / (float) count;
+    r = r / (float) HRTIME_SECOND;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+void *
+dyn_stats_time_mseconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  float r;
+  READ_DYN_STAT((long) data, count, sum);
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = (float) sum / (float) count;
+    r = r / (float) HRTIME_MSECOND;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+void *
+dyn_stats_time_useconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  float r;
+  READ_DYN_STAT((long) data, count, sum);
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = (float) sum / (float) count;
+    r = r / (float) HRTIME_USECOND;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+// http trans stat functions
+// there is the implicit assumption that the lock has
+// been acquired.
+void *
+http_trans_stats_int_msecs_to_float_seconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+
+  float r;
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = ((float) sum) / 1000.0;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+void *
+http_trans_stats_count_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  (void)sum;
+  ink_atomic_swap((ink_statval_t *) res, count);
+  return res;
+}
+
+void *
+http_trans_stats_sum_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  (void)count;
+  ink_atomic_swap((ink_statval_t *) res, sum);
+  return res;
+}
+
+void *
+http_trans_stats_avg_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  if (count == 0) {
+    *(float *) res = 0.0;
+  } else {
+    *(float *) res = (float) sum / (float) count;
+  }
+  return res;
+}
+
+void *
+http_trans_stats_fsum_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  (void)count;
+  *(float *) res = (double) sum;
+  return res;
+}
+
+void *
+http_trans_stats_favg_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  if (count == 0) {
+    *(float *) res = 0.0;
+  } else {
+    *(float *) res = (double) sum / (double) count;
+  }
+  return res;
+}
+
+void *
+http_trans_stats_time_seconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  float r;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = (float) sum / (float) count;
+    r = r / (float) HRTIME_SECOND;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+void *
+http_trans_stats_time_mseconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  float r;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = (float) sum / (float) count;
+    r = r / (float) HRTIME_MSECOND;
+  }
+  *(float *) res = r;
+  return res;
+}
+
+void *
+http_trans_stats_time_useconds_cb(void *data, void *res)
+{
+  ink_statval_t count, sum;
+  float r;
+  READ_HTTP_TRANS_STAT((long) data, count, sum);
+  if (count == 0) {
+    r = 0.0;
+  } else {
+    r = (float) sum / (float) count;
+    r = r / (float) HRTIME_USECOND;
+  }
+  *(float *) res = r;
+  return res;
+}
diff --git a/proxy/StatSystem.h b/proxy/StatSystem.h
new file mode 100644
index 00000000..32128abe
--- /dev/null
+++ b/proxy/StatSystem.h
@@ -0,0 +1,636 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  StatSystem.h --
+  Created On          : Fri Apr 3 19:41:39 1998
+ ****************************************************************************/
+#if !defined (_StatSystem_h_)
+#define _StatSystem_h_
+
+#include "ink_platform.h"
+#include "ink_hrtime.h"
+#include "ink_atomic.h"
+#ifdef USE_LOCKS_FOR_DYN_STATS
+#include "Lock.h"
+#endif
+
+#include "ink_apidefs.h"
+
+#define STATS_MAJOR_VERSION    6        // increment when changing the stats!
+#define DEFAULT_SNAP_FILENAME             "stats.snap"
+
+/////////////////////////////////////////////////////////////
+//
+// class TransactionMilestones
+//
+/////////////////////////////////////////////////////////////
+class TransactionMilestones
+{
+public:
+  TransactionMilestones()
+    : ua_begin(0), ua_read_header_done(0), ua_begin_write(0), ua_close(0), server_first_connect(0), server_connect(0),
+      server_connect_end(0), server_begin_write(0), server_first_read(0), server_read_header_done(0), server_close(0),
+      cache_open_read_begin(0), cache_open_read_end(0), cache_open_write_begin(0), cache_open_write_end(0),
+      dns_lookup_begin(0), dns_lookup_end(0), sm_start(0), sm_finish(0)
+      { }
+
+
+  ////////////////////////////////////////////////////////
+  // user agent:                                        //
+  // user_agent_begin represents the time this          //
+  // transaction started. If this is the first          //
+  // transaction in a connection, then user_agent_begin //
+  // is set to accept time. otherwise it is set to      //
+  // first read time.                                   //
+  ////////////////////////////////////////////////////////
+  ink_hrtime ua_begin;
+  ink_hrtime ua_read_header_done;
+  ink_hrtime ua_begin_write;
+  ink_hrtime ua_close;
+
+  ////////////////////////////////////////////////////////
+  // server (origin_server , parent, blind tunnnel //
+  ////////////////////////////////////////////////////////
+  ink_hrtime server_first_connect;
+  ink_hrtime server_connect;
+  ink_hrtime server_connect_end;
+  ink_hrtime server_begin_write;            //  http only
+  ink_hrtime server_first_read; //  http only
+  ink_hrtime server_read_header_done;   //  http only
+  ink_hrtime server_close;
+
+  ink_hrtime cache_open_read_begin;
+  ink_hrtime cache_open_read_end;
+  ink_hrtime cache_open_write_begin;
+  ink_hrtime cache_open_write_end;
+
+  ink_hrtime dns_lookup_begin;
+  ink_hrtime dns_lookup_end;
+
+  ///////////////////
+  // state machine //
+  ///////////////////
+  ink_hrtime sm_start;
+  ink_hrtime sm_finish;
+
+  // TODO: Should we instrument these at some point?
+  // ink_hrtime  cache_read_begin;
+  // ink_hrtime  cache_read_end;
+  // ink_hrtime  cache_write_begin;
+  // ink_hrtime  cache_write_end;
+};
+
+
+// Modularization Project: Build w/o thread-local-dyn-stats
+// temporarily until we switch over to librecords.  Revert to old
+// non-thread-local system so that TS will still build and run.
+
+//---------------------------------------------------------------------//
+//                       Welcome to enum land!                         //
+//---------------------------------------------------------------------//
+
+// Before adding a stat variable, decide whether it is of
+// a "transaction" type or if it is of a "dynamic" type.
+// Then add the stat variable to the appropriate enumeration
+// type. Make sure that DYN_STAT_START is large enough
+// (read comment below).
+
+//
+// Http Transaction Stats
+//
+#define _HEADER \
+typedef enum { \
+    NO_HTTP_TRANS_STATS = 0,
+
+#define _FOOTER \
+    MAX_HTTP_TRANS_STATS \
+} HttpTransactionStat_t;
+
+#if defined(freebsd)
+#undef _D
+#endif
+#define _D(_x) _x,
+
+#include "HttpTransStats.h"
+#undef _HEADER
+#undef _FOOTER
+#undef _D
+
+struct HttpTransactionStatsString_t
+{
+  HttpTransactionStat_t i;
+  char *name;
+};
+
+//
+// Note: DYN_STAT_START needs to be at least the next
+// power of 2 bigger than the value of MAX_HTTP_TRANS_STATS
+//
+#define DYN_STAT_START 2048
+#define DYN_STAT_MASK (~(2047UL))
+//
+// Dynamic Stats
+//
+#define _HEADER \
+typedef enum { \
+    NO_DYN_STATS = DYN_STAT_START,
+
+#define _FOOTER \
+    MAX_DYN_STATS \
+} DynamicStat_t;
+
+#define _D(_x) _x,
+
+#include "DynamicStats.h"
+
+#undef _HEADER
+#undef _FOOTER
+#undef _D
+
+struct DynamicStatsString_t
+{
+  DynamicStat_t i;
+  const char *name;
+};
+
+extern HttpTransactionStatsString_t HttpTransactionStatsStrings[];
+extern DynamicStatsString_t DynamicStatsStrings[];
+
+//---------------------------------------------------------------------//
+//                          Typedefs, etc.                             //
+//---------------------------------------------------------------------//
+
+// For now, use mutexes. May later change to spin_locks, try_locks.
+#define ink_stat_lock_t ink_mutex
+
+typedef int64_t ink_statval_t;
+
+struct ink_local_stat_t
+{
+  ink_statval_t count;
+  ink_statval_t value;
+};
+
+struct ink_prot_global_stat_t
+{
+  ink_stat_lock_t access_lock;
+  ink_statval_t count;
+  ink_statval_t sum;
+
+  ink_prot_global_stat_t()
+    : count(0), sum(0)
+  {
+    ink_mutex_init(&access_lock, "Stats Access Lock");
+  }
+};
+
+struct ink_unprot_global_stat_t
+{
+  ink_statval_t count;
+  ink_statval_t sum;
+    ink_unprot_global_stat_t():count(0), sum(0)
+  {
+  }
+};
+
+
+//---------------------------------------------------------------------//
+//                     External interface macros                       //
+//---------------------------------------------------------------------//
+
+// Set count and sum to 0.
+#define CLEAR_DYN_STAT(X) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    CLEAR_GLOBAL_DYN_STAT(X-DYN_STAT_START); \
+}
+
+#define DECREMENT_DYN_STAT(X) SUM_DYN_STAT(X, (ink_statval_t)-1)
+
+#define COUNT_DYN_STAT(X,C) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    ADD_TO_GLOBAL_DYN_COUNT((X-DYN_STAT_START), C); \
+}
+
+#define FSUM_DYN_STAT(X, S) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    ADD_TO_GLOBAL_DYN_FSUM((X-DYN_STAT_START), S); \
+}
+
+// Increment the count, sum.
+#define INCREMENT_DYN_STAT(X) SUM_DYN_STAT(X, (ink_statval_t)1)
+
+// Get the count and sum in a single lock acquire operation.
+// Would it make sense to have three functions - a combined
+// read of the count and sum, and two more functions - one
+// to read just the count and the other to read just the sum?
+#define READ_DYN_STAT(X,C,S) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    READ_GLOBAL_DYN_STAT((X-DYN_STAT_START),C,S); \
+}
+
+#define READ_DYN_COUNT(X,C) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    READ_GLOBAL_DYN_COUNT((X-DYN_STAT_START),C); \
+}
+
+#define READ_DYN_SUM(X,S) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    READ_GLOBAL_DYN_SUM((X-DYN_STAT_START),S); \
+}
+
+// set the stat.count to a specific value
+#define SET_DYN_COUNT(X, V) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    SET_GLOBAL_DYN_COUNT((X-DYN_STAT_START), V); \
+}
+
+// set the stat.count stat.sum to specific values
+#define SET_DYN_STAT(X, C, S) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    SET_GLOBAL_DYN_STAT((X-DYN_STAT_START), C, S); \
+}
+
+// Add a specific value to the sum.
+#define SUM_DYN_STAT(X,S) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    ADD_TO_GLOBAL_DYN_SUM((X-DYN_STAT_START), S); \
+}
+
+// Add a specific value to the sum.
+#define SUM_GLOBAL_DYN_STAT(X,S) \
+{ \
+    ink_assert (X & DYN_STAT_MASK); \
+    ADD_TO_GLOBAL_GLOBAL_DYN_SUM((X-DYN_STAT_START), S); \
+}
+
+#define __CLEAR_TRANS_STAT(local_stat_struct_, X) \
+{ \
+    ink_assert (!(X & DYN_STAT_MASK)); \
+    local_stat_struct_[X].count = (ink_statval_t)0; \
+    local_stat_struct_[X].value = (ink_statval_t)0; \
+}
+
+#define __DECREMENT_TRANS_STAT(local_stat_struct_, X) __SUM_TRANS_STAT(local_stat_struct_, X, (ink_statval_t)-1)
+
+#define __FSUM_TRANS_STAT(local_stat_struct_, X, S) \
+{ \
+    ink_assert (!(X & DYN_STAT_MASK)); \
+    local_stat_struct_[X].count++; \
+    (*(double *)&local_stat_struct_[X].value) += S; \
+}
+
+// Increment the count, sum.
+#define __INCREMENT_TRANS_STAT(local_stat_struct_, X) __SUM_TRANS_STAT(local_stat_struct_, X, (ink_statval_t)1);
+
+#define __INITIALIZE_LOCAL_STAT_STRUCT(local_stat_struct_, X) __CLEAR_TRANS_STAT(local_stat_struct_, X)
+
+#define	INITIALIZE_GLOBAL_TRANS_STATS(X) \
+{ \
+    X.count = (ink_statval_t)0; \
+    X.sum = (ink_statval_t)0; \
+}
+
+// Get the count and sum in a single lock acquire operation.
+// Would it make sense to have three functions - a combined
+// read of the count and sum, and two more functions - one
+// to read just the count and the other to read just the sum?
+#define READ_HTTP_TRANS_STAT(X,C,S) \
+{ \
+    ink_assert (!(X & DYN_STAT_MASK)); \
+    READ_GLOBAL_HTTP_TRANS_STAT(X,C,S); \
+}
+
+// set the stat.count to a specific value
+#define __SET_TRANS_COUNT(local_stat_struct_, X, V) \
+{ \
+    ink_assert (!(X & DYN_STAT_MASK)); \
+    local_stat_struct_[X].value = (ink_statval_t)V; \
+}
+
+// set the stat.count and the stat.sum to specific values
+#define __SET_TRANS_STAT(local_stat_struct_, X, C, S) \
+{ \
+    ink_assert (!(X & DYN_STAT_MASK)); \
+    local_stat_struct_[X].value = (ink_statval_t)S; \
+}
+
+// Add a specific value to local stat.
+// Both ADD_TO_SUM_STAT and ADD_TO_COUNT_STAT do the same thing
+// to the local copy of the transaction stat.
+#define __SUM_TRANS_STAT(local_stat_struct_, X,S) \
+{ \
+    ink_assert (!(X & DYN_STAT_MASK)); \
+    local_stat_struct_[X].count += 1; \
+    local_stat_struct_[X].value += S; \
+}
+
+#define UPDATE_HTTP_TRANS_STATS(local_stat_struct_) \
+{ \
+    int i; \
+    STAT_LOCK_ACQUIRE(&(global_http_trans_stat_lock)); \
+    for (i=NO_HTTP_TRANS_STATS; i<MAX_HTTP_TRANS_STATS; i++) { \
+	global_http_trans_stats[i].count += local_stat_struct_[i].count; \
+	global_http_trans_stats[i].sum += local_stat_struct_[i].value; \
+    } \
+    STAT_LOCK_RELEASE(&(global_http_trans_stat_lock)); \
+}
+
+#define STAT_LOCK_ACQUIRE(X) (ink_mutex_acquire(X))
+#define STAT_LOCK_RELEASE(X) (ink_mutex_release(X))
+#define STAT_LOCK_INIT(X,S) (ink_mutex_init(X,S))
+
+//---------------------------------------------------------------------//
+// Internal macros to support adding, setting, reading, clearing, etc. //
+//---------------------------------------------------------------------//
+
+#ifndef USE_LOCKS_FOR_DYN_STATS
+
+#ifdef USE_THREAD_LOCAL_DYN_STATS
+// Modularization Project: See note above
+#error "Should not build with USE_THREAD_LOCAL_DYN_STATS"
+
+
+#define ADD_TO_GLOBAL_DYN_COUNT(X,C) \
+mutex->thread_holding->global_dyn_stats[X].count += (C)
+
+#define ADD_TO_GLOBAL_DYN_SUM(X,S) \
+mutex->thread_holding->global_dyn_stats[X].count ++; \
+mutex->thread_holding->global_dyn_stats[X].sum += (S)
+
+#define ADD_TO_GLOBAL_GLOBAL_DYN_SUM(X,S) \
+ink_atomic_increment(&global_dyn_stats[X].count,(ink_statval_t)1); \
+ink_atomic_increment(&global_dyn_stats[X].sum,S)
+/*
+ * global_dyn_stats[X].count ++; \
+ * global_dyn_stats[X].sum += (S)
+ */
+
+#define ADD_TO_GLOBAL_DYN_FSUM(X,S) \
+mutex->thread_holding->global_dyn_stats[X].count++; \
+mutex->thread_holding->global_dyn_stats[X].sum += (S)
+
+#define CLEAR_GLOBAL_DYN_STAT(X) \
+global_dyn_stats[X].count = 0; \
+global_dyn_stats[X].sum = 0
+
+#define READ_GLOBAL_DYN_STAT(X,C,S) do { \
+  ink_unprot_global_stat_t _s = global_dyn_stats[X]; \
+  for (int _e = 0; _e < eventProcessor.n_ethreads ; _e++) { \
+    _s.count += eventProcessor.all_ethreads[_e]->global_dyn_stats[X].count; \
+    _s.sum += eventProcessor.all_ethreads[_e]->global_dyn_stats[X].sum; \
+  } \
+  for (int _e = 0; _e < eventProcessor.n_dthreads ; _e++) { \
+    _s.count += eventProcessor.all_dthreads[_e]->global_dyn_stats[X].count; \
+    _s.sum += eventProcessor.all_dthreads[_e]->global_dyn_stats[X].sum; \
+  } \
+  C = _s.count; \
+  S = _s.sum; \
+} while (0)
+
+#define READ_GLOBAL_DYN_COUNT(X,C) do { \
+  ink_statval_t _s = global_dyn_stats[X].count; \
+  for (int _e = 0; _e < eventProcessor.n_ethreads ; _e++) \
+    _s += eventProcessor.all_ethreads[_e]->global_dyn_stats[X].count; \
+  for (int _e = 0; _e < eventProcessor.n_dthreads ; _e++) \
+    _s += eventProcessor.all_dthreads[_e]->global_dyn_stats[X].count; \
+  C = _s; \
+} while (0)
+
+#define READ_GLOBAL_DYN_SUM(X,S) do { \
+  ink_statval_t _s = global_dyn_stats[X].sum; \
+  for (int _e = 0; _e < eventProcessor.n_ethreads ; _e++) \
+    _s += eventProcessor.all_ethreads[_e]->global_dyn_stats[X].sum; \
+  for (int _e = 0; _e < eventProcessor.n_dthreads ; _e++) \
+    _s += eventProcessor.all_dthreads[_e]->global_dyn_stats[X].sum; \
+  S = _s; \
+} while (0)
+
+#define READ_GLOBAL_HTTP_TRANS_STAT(X,C,S) \
+{ \
+    C = global_http_trans_stats[X].count; \
+    S = global_http_trans_stats[X].sum; \
+}
+
+#define SET_GLOBAL_DYN_COUNT(X,V) \
+global_dyn_stats[X].count = V
+
+#define SET_GLOBAL_DYN_STAT(X,C,S) \
+global_dyn_stats[X].count = C; \
+global_dyn_stats[X].sum = S
+
+#define	INITIALIZE_GLOBAL_DYN_STATS(X, T) \
+{ \
+    X.count = (ink_statval_t)0; \
+    X.sum = (ink_statval_t)0; \
+}
+
+#else
+
+#define ADD_TO_GLOBAL_DYN_COUNT(X,C) \
+ink_atomic_increment(&global_dyn_stats[X].count,C)
+
+#define ADD_TO_GLOBAL_DYN_SUM(X,S) \
+ink_atomic_increment(&global_dyn_stats[X].count,(ink_statval_t)1); \
+ink_atomic_increment(&global_dyn_stats[X].sum,S)
+
+#define ADD_TO_GLOBAL_GLOBAL_DYN_SUM(X,S) \
+ink_atomic_increment(&global_dyn_stats[X].count,(ink_statval_t)1); \
+ink_atomic_increment(&global_dyn_stats[X].sum,S)
+
+#define ADD_TO_GLOBAL_DYN_FSUM(X,S) \
+ink_atomic_increment(&global_dyn_stats[X].count,(ink_statval_t)1); \
+(*(double *)&global_dyn_stats[X].sum) += S
+
+#define CLEAR_GLOBAL_DYN_STAT(X) \
+global_dyn_stats[X].count = 0; \
+global_dyn_stats[X].sum = 0
+
+#define READ_GLOBAL_DYN_STAT(X,C,S) \
+C = global_dyn_stats[X].count; \
+S = global_dyn_stats[X].sum
+
+#define READ_GLOBAL_DYN_COUNT(X,C) \
+C = global_dyn_stats[X].count;
+
+#define READ_GLOBAL_DYN_SUM(X,S) \
+S = global_dyn_stats[X].sum;
+
+#define READ_GLOBAL_HTTP_TRANS_STAT(X,C,S) \
+{ \
+    C = global_http_trans_stats[X].count; \
+    S = global_http_trans_stats[X].sum; \
+}
+
+#define SET_GLOBAL_DYN_COUNT(X,V) \
+global_dyn_stats[X].count = V
+
+#define SET_GLOBAL_DYN_STAT(X,C,S) \
+global_dyn_stats[X].count = C; \
+global_dyn_stats[X].sum = S
+
+#define	INITIALIZE_GLOBAL_DYN_STATS(X, T) \
+{ \
+    X.count = (ink_statval_t)0; \
+    X.sum = (ink_statval_t)0; \
+}
+
+#endif /* USE_THREAD_LOCAL_DYN_STATS */
+
+#else /* USE_LOCKS_FOR_DYN_STATS */
+
+#define ADD_TO_GLOBAL_DYN_COUNT(X,C) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count += C; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+#define ADD_TO_GLOBAL_DYN_SUM(X,S) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count += 1; \
+    global_dyn_stats[X].sum += S; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+#define ADD_TO_GLOBAL_GLOBAL_DYN_SUM(X,S) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count += 1; \
+    global_dyn_stats[X].sum += S; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+#define ADD_TO_GLOBAL_DYN_FSUM(X,S) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count += (ink_statval_t)1; \
+    (*(double *)&global_dyn_stats[X].sum) += S; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+#define CLEAR_GLOBAL_DYN_STAT(X) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count = (ink_statval_t)0; \
+    global_dyn_stats[X].sum = (ink_statval_t)0; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+#define READ_GLOBAL_DYN_STAT(X,C,S) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    C = global_dyn_stats[X].count; \
+    S = global_dyn_stats[X].sum; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+#define READ_GLOBAL_HTTP_TRANS_STAT(X,C,S) \
+{ \
+    C = global_http_trans_stats[X].count; \
+    S = global_http_trans_stats[X].sum; \
+}
+#define SET_GLOBAL_DYN_COUNT(X,V) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count = V; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+
+#define SET_GLOBAL_DYN_STAT(X,C,S) \
+{ \
+    STAT_LOCK_ACQUIRE(&(global_dyn_stats[X].access_lock)); \
+    global_dyn_stats[X].count = C; \
+    global_dyn_stats[X].sum = S; \
+    STAT_LOCK_RELEASE(&(global_dyn_stats[X].access_lock)); \
+}
+
+#define	INITIALIZE_GLOBAL_DYN_STATS(X, T) \
+{ \
+    STAT_LOCK_INIT(&(X.access_lock), T); \
+    X.count = (ink_statval_t)0; \
+    X.sum = (ink_statval_t)0; \
+}
+
+#endif /* USE_LOCKS_FOR_DYN_STATS */
+
+//---------------------------------------------------------------------//
+//                        Function prototypes                          //
+//---------------------------------------------------------------------//
+extern void start_stats_snap(void);
+void initialize_all_global_stats();
+
+// TODO: I don't think these are necessary any more, but double check.
+//void *tmp_stats_lock_function(UpdateLockAction action);
+//void *stats_lock_function(void *data, UpdateLockAction action);
+
+void *http_trans_stats_count_cb(void *data, void *res);
+void *http_trans_stats_sum_cb(void *data, void *res);
+void *http_trans_stats_avg_cb(void *data, void *res);
+void *http_trans_stats_fsum_cb(void *data, void *res);
+void *http_trans_stats_favg_cb(void *data, void *res);
+void *http_trans_stats_time_seconds_cb(void *data, void *res);
+void *http_trans_stats_time_mseconds_cb(void *data, void *res);
+void *http_trans_stats_time_useconds_cb(void *data, void *res);
+
+void *dyn_stats_count_cb(void *data, void *res);
+inkcoreapi void *dyn_stats_sum_cb(void *data, void *res);
+void *dyn_stats_avg_cb(void *data, void *res);
+void *dyn_stats_fsum_cb(void *data, void *res);
+void *dyn_stats_favg_cb(void *data, void *res);
+void *dyn_stats_time_seconds_cb(void *data, void *res);
+void *dyn_stats_time_mseconds_cb(void *data, void *res);
+void *dyn_stats_time_useconds_cb(void *data, void *res);
+void *dyn_stats_int_msecs_to_float_seconds_cb(void *data, void *res);
+//---------------------------------------------------------------------//
+//                 Global variables declaration.                       //
+//---------------------------------------------------------------------//
+extern ink_stat_lock_t global_http_trans_stat_lock;
+extern ink_unprot_global_stat_t global_http_trans_stats[MAX_HTTP_TRANS_STATS];
+#ifndef USE_LOCKS_FOR_DYN_STATS
+extern inkcoreapi ink_unprot_global_stat_t global_dyn_stats[MAX_DYN_STATS - DYN_STAT_START];
+#else
+extern inkcoreapi ink_prot_global_stat_t global_dyn_stats[MAX_DYN_STATS - DYN_STAT_START];
+#endif
+
+#ifdef DEBUG
+extern ink_mutex http_time_lock;
+extern time_t last_http_local_time;
+#endif
+
+#define MAX_HTTP_HANDLER_EVENTS 25
+extern void clear_http_handler_times();
+extern void print_http_handler_time(int event);
+extern void print_all_http_handler_times();
+#ifdef DEBUG
+extern ink_hrtime http_handler_times[MAX_HTTP_HANDLER_EVENTS];
+extern int http_handler_counts[MAX_HTTP_HANDLER_EVENTS];
+#endif
+
+
+#endif /* _StatSystem_h_ */
diff --git a/proxy/StufferUdpReceiver.cc b/proxy/StufferUdpReceiver.cc
new file mode 100644
index 00000000..250d3f36
--- /dev/null
+++ b/proxy/StufferUdpReceiver.cc
@@ -0,0 +1,335 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*
+  This is the standalone program to receive the UDP packet from the parent
+  and stream them to TS on local host
+
+  Right now, if an out of order packet arrives, we just neglect it.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <assert.h>
+
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#define Debug(print) do { if (debug_on) printf print; } while (0)
+int debug_on = 0;
+
+#define UDP_BUF_SIZE (64 * 1024)
+#define TSPORT 39679
+
+#define STREAM_TIMEOUT_SECS 6000
+typedef unsigned int uint32;
+
+/*taken from Prefetch.cc */
+struct prefetch_udp_header
+{
+  //uint32 response_flag:1, last_pkt:1, pkt_no:30;
+  uint32_t pkt;
+  uint32_t md5[4];
+};
+
+#define RESPONSE_FLAG (1<<31)
+#define LAST_PKT_FLAG (1<<30)
+#define PKT_NUM_MASK ((1<<30)-1)
+
+#define PACKET_HDR_SIZE 20
+
+/* statistics */
+static int number_of_packets_received = 0;
+static int number_of_packets_dropped = 0;
+static int number_of_connections_to_ts = 0;
+static int number_of_timeouts = 0;
+
+/* TODO: this functions should be a signal handler ... */
+int
+stufferUdpStatShow()
+{
+  printf("no of packets received\t:\t%d\n"
+         "no of packets dropped\t:\t%d\n"
+         "no of connections to TS\t:\t%d\n"
+         "no of timeouts\t\t:\t%d\n",
+         number_of_packets_received, number_of_packets_dropped, number_of_connections_to_ts, number_of_timeouts);
+
+  return 0;
+}
+
+struct Stream
+{
+  time_t last_activity_time;
+  prefetch_udp_header hdr;
+  int fd;                       //tcp connection
+
+  Stream *next;
+};
+
+class StreamHashTable
+{
+
+  Stream **array;
+  int size;
+public:
+
+    StreamHashTable(int sz)
+  {
+    size = sz;
+    array = new Stream *[size];
+    memset(array, 0, size * sizeof(Stream *));
+  }
+   ~StreamHashTable()
+  {
+    delete[]array;
+  }
+
+  int index(prefetch_udp_header * hdr)
+  {
+    return hdr->md5[3] % size;
+  }
+  Stream **position(prefetch_udp_header * hdr);
+  Stream **position(Stream * s)
+  {
+    return position(&s->hdr);
+  }
+  Stream *lookup(prefetch_udp_header * hdr)
+  {
+    return *position(hdr);
+  }
+  void add(Stream * s);
+  void remove(Stream * s);
+
+  int deleteStaleStreams(time_t now);
+};
+StreamHashTable *stream_hash_table;
+
+Stream **
+StreamHashTable::position(prefetch_udp_header * hdr)
+{
+  Stream **e = &array[index(hdr)];
+
+  while (*e) {
+    prefetch_udp_header *h = &((*e)->hdr);
+    if (hdr->md5[0] == h->md5[0] && hdr->md5[1] == h->md5[1] && hdr->md5[2] == h->md5[2] && hdr->md5[3] == h->md5[3])
+      return e;
+    e = &(*e)->next;
+  }
+  return e;
+}
+
+void
+StreamHashTable::add(Stream * s)
+{
+  Stream **e = position(s);
+  assert(!*e);
+  *e = s;
+}
+
+void
+StreamHashTable::remove(Stream * s)
+{
+  Stream **e = position(s);
+  assert(s == *e);
+  *e = s->next;
+}
+
+int
+StreamHashTable::deleteStaleStreams(time_t now)
+{
+  int nremoved = 0;
+  for (int i; i < size; i++) {
+    Stream *&e = array[i];
+    while (e) {
+      if (e->last_activity_time < now - STREAM_TIMEOUT_SECS) {
+        close(e->fd);
+        number_of_timeouts++;
+
+        Stream *temp = e;
+        e = e->next;
+        delete temp;
+        nremoved++;
+      } else
+        e = e->next;
+    }
+  }
+  return nremoved;
+}
+
+int
+openTSConn()
+{
+  int fd = socket(PF_INET, SOCK_STREAM, 0);
+  if (fd < 0) {
+    //perror("socket()");
+    return -1;
+  }
+
+  struct sockaddr_in saddr;
+  saddr.sin_family = AF_INET;
+  saddr.sin_port = htons(TSPORT);
+//#define INADDR_LOOPBACK ((209<<24)|(131<<16)|(52<<8)|48)
+  saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+  if (connect(fd, (sockaddr *) & saddr, sizeof(saddr)) < 0) {
+    perror("connect(TS)");
+    close(fd);
+    return -1;
+  }
+
+  number_of_connections_to_ts++;
+  return fd;
+}
+
+int
+processPacket(const char *packet, int pkt_sz)
+{
+  prefetch_udp_header *hdr = (prefetch_udp_header *) packet;
+  uint32_t flags = ntohl(hdr->pkt);
+
+  int close_socket = 1;
+  int sock_fd = -1;
+
+  number_of_packets_received++;
+
+  Debug(("Received packet. response_flag : %d last_pkt: %d pkt_no: %d"
+         " (%d)\n", (flags & RESPONSE_FLAG) ? 1 : 0,
+         (flags & RESPONSE_FLAG) && (flags & LAST_PKT_FLAG),
+         (flags & RESPONSE_FLAG) ? flags & PKT_NUM_MASK : 0, ntohl(hdr->pkt)));
+
+  if (flags & RESPONSE_FLAG) {
+    Stream *s = stream_hash_table->lookup(hdr);
+    uint32_t pkt_no = flags & PKT_NUM_MASK;
+
+    if (pkt_no == 0 && !(flags & LAST_PKT_FLAG)) {
+      if (s || !(s = new Stream)) {
+        number_of_packets_dropped++;
+        return -1;
+      }
+      s->hdr = *hdr;
+      s->hdr.pkt = pkt_no;
+      s->last_activity_time = time(NULL);
+      s->next = 0;
+      s->fd = openTSConn();
+      if (s->fd < 0) {
+        delete s;
+        return -1;
+      } else
+        sock_fd = s->fd;
+
+      close_socket = 0;
+      stream_hash_table->add(s);
+
+    } else if (pkt_no > 0) {
+      if (!s)
+        return -1;
+
+      s->last_activity_time = time(0);
+      sock_fd = s->fd;
+
+      s->hdr.pkt++;
+
+      if (s->hdr.pkt != pkt_no || flags & LAST_PKT_FLAG) {
+        stream_hash_table->remove(s);
+        delete s;
+      } else
+        close_socket = 0;
+
+      if (s->hdr.pkt != pkt_no) {
+        Debug(("Received an out of order packet dropping the "
+               "connection expected %d but got %d\n", s->hdr.pkt, pkt_no));
+        number_of_packets_dropped++;
+        pkt_sz = 0;             // we dont want to send anything.
+      }
+    }
+    packet += PACKET_HDR_SIZE;
+    pkt_sz -= PACKET_HDR_SIZE;
+  }
+
+  if (pkt_sz > 0) {
+    if (sock_fd < 0) {
+      sock_fd = openTSConn();
+      if (sock_fd < 0)
+        return -1;
+    }
+
+    Debug(("Writing %d bytes on socket %d\n", pkt_sz, sock_fd));
+    while (pkt_sz > 0) {
+      int nsent = write(sock_fd, (char *) packet, pkt_sz);
+      if (nsent < 0)
+        break;
+      packet += nsent;
+      pkt_sz -= nsent;
+    }
+  }
+
+  if (close_socket && sock_fd >= 0)
+    close(sock_fd);
+
+  return 0;
+}
+
+int
+main(int argc, char *argv[])
+{
+  int port = TSPORT;
+
+  if (argc > 1)
+    debug_on = 1;
+
+  stream_hash_table = new StreamHashTable(257);
+
+  char *pkt_buf = (char *)ats_malloc(UDP_BUF_SIZE);
+  int fd = socket(PF_INET, SOCK_DGRAM, 0);
+
+  struct sockaddr_in saddr;
+  saddr.sin_family = AF_INET;
+  saddr.sin_port = htons(port);
+  saddr.sin_addr.s_addr = INADDR_ANY;
+
+  if ((bind(fd, (struct sockaddr *) &saddr, sizeof(saddr))) < 0) {
+    perror("bind(udp_fd)");
+    ats_free(pkt_buf);
+    return 0;
+  }
+
+  time_t last_clean_up = time(0);
+
+  while (1) {
+    int pkt_size = read(fd, pkt_buf, UDP_BUF_SIZE);
+    if (pkt_size < 0)
+      return 0;
+
+    Debug(("Processing udp packet (size = %d)\n", pkt_size));
+    processPacket(pkt_buf, pkt_size);
+
+    time_t now = time(0);
+    if (now > last_clean_up + STREAM_TIMEOUT_SECS)
+      stream_hash_table->deleteStaleStreams(now);
+  }
+
+  ats_free(pkt_buf);
+}
diff --git a/proxy/TestClock.cc b/proxy/TestClock.cc
new file mode 100644
index 00000000..14f8e6ad
--- /dev/null
+++ b/proxy/TestClock.cc
@@ -0,0 +1,46 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_hrtime.h"
+#include <sys/time.h>
+
+void
+test()
+{
+  ink_hrtime t = ink_get_hrtime();
+  int i = 1000000;
+  timespec ts;
+  while (i--) {
+    clock_gettime(CLOCK_REALTIME, &ts);
+  }
+  ink_hrtime t2 = ink_get_hrtime();
+  printf("time for clock_gettime %" PRId64 " nsecs\n", (t2 - t) / 1000);
+
+  t = ink_get_hrtime();
+  i = 1000000;
+  while (i--) {
+    ink_get_hrtime();
+  }
+  t2 = ink_get_hrtime();
+  printf("time for clock_gettime %" PRId64 " nsecs\n", (t2 - t) / 1000);
+}
diff --git a/proxy/TestClusterHash.cc b/proxy/TestClusterHash.cc
new file mode 100644
index 00000000..1b191ce0
--- /dev/null
+++ b/proxy/TestClusterHash.cc
@@ -0,0 +1,120 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  TestClusterHash.cc
+ ****************************************************************************/
+#include "Cluster.h"
+#include "libts.h"
+
+
+//
+// This test function produces the table included
+// in Memo.ClusterHash
+//
+
+void
+test()
+{
+  int n[CLUSTER_MAX_MACHINES];
+  int i;
+  Machine *m;
+  int j;
+  ink_hrtime t, t2;
+  int total;
+  int high, low, share;
+  int version = 7;
+
+  while (version > -1) {
+
+    // the select the version
+    //
+    machineClusterHash = !!(version & 1);
+    boundClusterHash = !!(version & 2);
+    randClusterHash = !!(version & 4);
+
+    // fabricate fake cluster
+
+    clusterProcessor.this_cluster = new Cluster;
+    ClusterConfiguration *cc = new ClusterConfiguration;
+    cc->n_machines = 1;
+    cc->machines[0] = this_cluster_machine();
+    memset(cc->hash_table, 0, CLUSTER_HASH_TABLE_SIZE);
+    clusterProcessor.this_cluster->configurations.push(cc);
+
+    ClusterConfiguration *c = this_cluster()->current_configuration();
+
+    printf("hash by %s - %s - %s\n",
+           (machineClusterHash ? "MACHINE" : "BUCKET"),
+           (boundClusterHash ? "BOUNDED" : "UNBOUND"), (randClusterHash ? "RAND" : "LINEAR CONGUENCE"));
+
+    // from 1 to 32 machines
+
+    for (i = 1; i < 32; i++) {
+      m = new ClusterMachine(*this_cluster_machine());
+      m->ip += i;
+      t = ink_get_hrtime();
+      cc = configuration_add_machine(c, m);
+      t2 = ink_get_hrtime();
+
+      //
+      // Compute new distribution
+      //
+      high = 0;
+      low = CLUSTER_HASH_TABLE_SIZE + 1;
+      for (j = 0; j < cc->n_machines; j++)
+        n[j] = 0;
+      for (j = 0; j < CLUSTER_HASH_TABLE_SIZE; j++) {
+        ink_assert(cc->hash_table[j] < cc->n_machines);
+        n[cc->hash_table[j]]++;
+      }
+      total = CLUSTER_HASH_TABLE_SIZE;
+      for (j = 0; j < cc->n_machines; j++) {
+        total -= n[j];
+        if (low > n[j])
+          low = n[j];
+        if (high < n[j])
+          high = n[j];
+      }
+      ink_assert(!total);
+      printf("n = %d:", i);
+      printf(" high = %d low = %d high/low = %f", high, low, (float) high / (float) low);
+
+      //
+      // Compute sharing with n-1
+      //
+      share = 0;
+      for (j = 0; j < CLUSTER_HASH_TABLE_SIZE; j++) {
+        if (c->machines[c->hash_table[j]] == cc->machines[cc->hash_table[j]])
+          share++;
+      }
+      printf(" shared = %d %%%6.2f", share, (float) share / (float) CLUSTER_HASH_TABLE_SIZE);
+
+      printf(" time = %f secs\n", ((float) (t2 - t) / (float) HRTIME_SECONDS(1)));
+      c = cc;
+    }
+
+    version--;
+  }
+}
diff --git a/proxy/TestDNS.cc b/proxy/TestDNS.cc
new file mode 100644
index 00000000..4ba32560
--- /dev/null
+++ b/proxy/TestDNS.cc
@@ -0,0 +1,258 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  TestDns.cc
+
+  Test module to test the DNS processor
+
+  The main state machine is encapulated in the StateMachine instance.
+
+
+ ****************************************************************************/
+
+#include "DNS.h"
+#include <iostream.h>
+#include <fstream.h>
+#include <string.h>
+#include "VConnection.h"
+#include "stdio.h"
+#include "libts.h"
+#define N_STATE_MACHINES 1000
+#define MEASUREMENT_INTERVAL 100
+class TestDnsStateMachine;
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      Globals
+//
+//////////////////////////////////////////////////////////////////////////////
+
+unsigned g_host_ip = 0;
+char *in_file_name = "test_dns.in";
+char *out_file_name = "test_dns.out";
+char *rate_file_name = "rates.out";
+char *rate_misc_file_name = "rates.misc.out";
+ofstream fout;
+ofstream fout_rate, fout_rate_misc;
+FILE *fin;
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      TestDnsStateMachine
+//
+//  An instance of TestDnsStateMachine is created for each host
+//
+//////////////////////////////////////////////////////////////////////////////
+class TestDnsStateMachine:public Continuation
+{
+public:
+  TestDnsStateMachine(char *ahost, size_t size);
+   ~TestDnsStateMachine()
+  {
+//        cout << "StateMachine::~StateMachine(). Terminating ... " << endl;
+    return;
+  }
+
+  const char *currentStateName();
+
+  int processEvent(int event, void *data);
+
+  enum
+  { START, DNS_LOOKUP };
+
+  int m_state;
+  char host[100];
+};
+
+TestDnsStateMachine::TestDnsStateMachine(char *ahost, size_t size)
+  :
+Continuation(new_ProxyMutex())
+{
+  ink_strlcpy(host, ahost, size);
+  m_state = START;
+  SET_HANDLER(processEvent);
+  return;
+}
+
+
+inline const char *
+TestDnsStateMachine::currentStateName()
+{
+  switch (m_state) {
+  case START:
+    return ("START");
+  case DNS_LOOKUP:
+    return ("DNS_LOOKUP");
+  default:
+    return ("unknown state");
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      TestDnsStateMachine::processEvent()
+//
+//      This routine is the main callback entry point of the TestTunnel
+//      state machine.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+int
+TestDnsStateMachine::processEvent(int event, void *data)
+{
+  int rvalue = VC_EVENT_DONE;
+  void complete();
+
+//    printf("<<< state machine processEvent() called in state '%s' >>>\n",currentStateName());
+
+  switch (m_state) {
+  case START:
+    {
+//        cout << "  started up TestDnsStateMachine" << endl;
+//        cout << "  dns lookup for <" << host << ">" <<  endl;
+
+      //
+      // asynchronously do DNS, calling <this> back when done
+      //
+
+      m_state = DNS_LOOKUP;
+      dnsProcessor.gethostbyname(this, host);
+      break;
+    }
+  case DNS_LOOKUP:
+    {
+      ink_assert(event == DNS_EVENT_LOOKUP);
+      if (!host)
+        ink_assert(!"Error - host has no value\n");
+      if (data) {
+        HostEnt *ent = (HostEnt *) data;
+        g_host_ip = ((struct in_addr *) ent->h_addr_list[0])->s_addr;
+//        cout << "  dns lookup is done <" << g_host_ip << ">" << endl;
+//          cout << "<" << host << "> <" << g_host_ip << ">\n";
+        fout << "<" << host << "> <" << g_host_ip << ">\n";
+//        cout << "    finishing up" << endl;
+//        printf("*** NOTE: We Need To Somehow Free 'this' Here!  How?\n");
+      } else {
+        fout << "<" << host << "> <>\n";
+      }
+      fout.flush();
+      rvalue = VC_EVENT_DONE;
+      m_state = 99;             // Some Undefined state value
+      complete();
+      delete this;
+      break;
+    }
+  default:
+    {
+      ink_assert(!"unexpected m_state");
+      break;
+    }
+  }
+  return (rvalue);
+}
+
+int state_machines_created, state_machines_finished, measurement_interval;
+ink_hrtime start_time, last_measurement_time;
+// Following function is called to measure the throughput
+void
+complete()
+{
+  float throughput, cumul_throughput;
+  ink_hrtime now;
+  state_machines_finished++;
+  if (!(state_machines_finished % measurement_interval)) {
+    now = ink_get_hrtime();
+    cumul_throughput = state_machines_finished * 1.0 * HRTIME_SECOND / (now - start_time);
+    throughput = measurement_interval * 1.0 * HRTIME_SECOND / (now - last_measurement_time);
+    last_measurement_time = now;
+//    cout << state_machines_finished << ": " <<
+//    "Cumul. Thrput " << cumul_throughput <<
+//    " per sec; Thrput for last " << measurement_interval << " requests: "
+//    << throughput << " per sec\n";
+//    cout.flush();
+//    fout_rate << state_machines_finished << ": " <<
+//    "Cumul. Thrput " << cumul_throughput <<
+//    " per sec; Thrput for last " << measurement_interval << " requests: "
+//    << throughput << " per sec\n";
+    fout_rate << (now - start_time) * 1.0 / HRTIME_SECOND << " " << state_machines_finished << " " << cumul_throughput
+      << " " << throughput << "\n";
+    fout_rate.flush();
+  }
+  if (state_machines_finished == state_machines_created) {
+    now = ink_get_hrtime();
+    fout_rate_misc << (now - start_time) * 1.0 / HRTIME_SECOND << "\n";
+    fout_rate_misc.flush();
+    fout.close();
+    fout_rate.close();
+    fout_rate_misc.close();
+    cout << "Dns Testing Complete\n";
+    exit(0);
+  }
+//  printf("%d Hosts left \n",state_machines_unfinished);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      test
+//
+//  Main entry point for DNS tests
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+test()
+{
+  char host[100];
+  ink_hrtime now;
+  int i;
+  TestDnsStateMachine *test_dns_state_machine;
+  printf("removing file '%s'\n", out_file_name);
+  unlink(out_file_name);
+  printf("removing file '%s'\n", rate_file_name);
+  unlink(rate_file_name);
+  printf("removing file '%s'\n", rate_misc_file_name);
+  unlink(rate_misc_file_name);
+  fin = fopen(in_file_name, "r");       // STDIO OK
+  fout.open(out_file_name);
+  fout_rate.open(rate_file_name);
+  fout_rate_misc.open(rate_misc_file_name);
+  i = 0;
+  state_machines_created = N_STATE_MACHINES;
+  state_machines_finished = 0;
+  measurement_interval = MEASUREMENT_INTERVAL;
+  start_time = ink_get_hrtime();
+  last_measurement_time = ink_get_hrtime();
+  while ((fscanf(fin, "%s", host) != EOF) && (i < state_machines_created)) {
+    test_dns_state_machine = new TestDnsStateMachine(host, sizeof(host));
+    test_dns_state_machine->handleEvent();
+    i++;
+  }
+  now = ink_get_hrtime();
+  cout << "Finished creating all Continuations at " <<
+    (now - start_time) / HRTIME_SECOND << " sec and " << (now - start_time) % HRTIME_SECOND << "nanosec\n";
+  fout_rate_misc << (now - start_time) * 1.0 / HRTIME_SECOND << "\n";
+  fout_rate_misc.flush();
+}
diff --git a/proxy/TestPreProc.cc b/proxy/TestPreProc.cc
new file mode 100644
index 00000000..604040c3
--- /dev/null
+++ b/proxy/TestPreProc.cc
@@ -0,0 +1,188 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "TestPreProc.h"
+#include "IOBufferPool.h"
+#include "IOBuffer.h"
+#include "HttpPreProc.h"
+#include "HttpMessage.h"
+#include "HttpPreProcMessageManager.h"
+#include "RawHashTable.h"
+#include "ink_time.h"           /* ink_time_wall_seconds() */
+#include <string.h>
+#include <iostream.h>
+
+/* local functions prototypes */
+void dumpMessage(const HttpMessage & msg);
+void testPreProc();
+
+/* some global requests */
+char *request1 = "GET http://trafficserver.apache.org HTTP/1.1\r\n\
+Accept: text/*, text/html, text/html; level=1\r\n\
+Accept-Charset: iso-8859-5, unicode-1-1;q=0.8\r\n\r\n";
+char *response1 = "HTTP/1.1 200\r\n\r\n";
+//////////////////////////////////////////////////////////////////////////////
+// RequestInput().
+//////////////////////////////////////////////////////////////////////////////
+RequestInput::RequestInput(const char *str, IOBuffer * cb)
+  :
+m_sp(0),
+m_len(0),
+m_cb(cb)
+{
+  m_len = strlen(str);
+  m_sp = request1;
+
+  return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// ~RequestInput()
+//////////////////////////////////////////////////////////////////////////////
+RequestInput::~RequestInput()
+{
+  return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// run()
+//////////////////////////////////////////////////////////////////////////////
+void
+RequestInput::run()
+{
+  unsigned maxBytes = 0;
+
+  char *buff = m_cb->getWrite(&maxBytes);
+  unsigned writeBytes = (m_len < maxBytes) ? m_len : maxBytes;
+
+
+  writeBytes = ink_strlcpy(buff, m_sp, maxBytes);
+  m_cb->wrote(writeBytes);
+
+  m_len -= writeBytes;
+  m_sp += writeBytes;
+
+  return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// dumpMessage()
+//////////////////////////////////////////////////////////////////////////////
+void
+dumpMessage(const HttpMessage & msg)
+{
+  if (msg.isResponse()) {
+    cout << "Http response" << endl;
+  }
+  if (msg.isRequest()) {
+    cout << "Http request" << endl;
+  }
+
+  cout << "Major version: " << msg.getMajorVersion() << endl;
+  cout << "Minor version: " << msg.getMinorVersion() << endl;
+  cout << "Method       : ";
+  switch (msg.getMethod()) {
+  case HttpMessage::METHOD_NONE:
+    cout << "NONE" << endl;
+  case HttpMessage::METHOD_OPTIONS:
+    cout << "OPTIONS" << endl;
+    break;
+  case HttpMessage::METHOD_GET:
+    cout << "GET" << endl;
+    break;
+  case HttpMessage::METHOD_HEAD:
+    cout << "HEAD" << endl;
+    break;
+  case HttpMessage::METHOD_POST:
+    cout << "POST" << endl;
+    break;
+  case HttpMessage::METHOD_PUT:
+    cout << "PUT" << endl;
+    break;
+  case HttpMessage::METHOD_DELETE:
+    cout << "DELETE" << endl;
+    break;
+  case HttpMessage::METHOD_TRACE:
+    cout << "TRACE" << endl;
+    break;
+  }
+
+  cout << "Scheme     : ";
+  switch (msg.getScheme()) {
+  case HttpMessage::SCHEME_NONE:
+    cout << "NONE" << endl;
+    break;
+  case HttpMessage::SCHEME_HTTP:
+    cout << "HTTP" << endl;
+    break;
+  }
+  cout << "Status code: " << msg.getStatusCode() << endl;
+  cout << "Request URI: " << msg.getRequestURI() << endl;
+
+  return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// testPreProc()
+//////////////////////////////////////////////////////////////////////////////
+double
+testPreProc(unsigned loopCount)
+{
+  IOBufferPool pool(96 /* bufferSize */ , 20 /* bufferCount */ );
+  IOBuffer *cb = pool.newBuffer();
+
+  HttpPreProcMessageManager msgMgr;
+
+  HttpPreProc pp(cb, &msgMgr);
+
+  /* start counting time here */
+  double startTime = ink_time_wall_seconds();
+
+  for (unsigned i = 0; i < loopCount; i++) {
+
+    RequestInput requestInput(request1, cb);
+
+    while (!requestInput.isDone()) {
+      requestInput.run();
+      pp.process();
+    }
+  }
+
+  double endTime = ink_time_wall_seconds();
+
+  return (endTime - startTime);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// main().
+//////////////////////////////////////////////////////////////////////////////
+main()
+{
+  for (unsigned lc = 1; lc < 10000; lc *= 10) {
+    double elapsedTime = testPreProc(lc);
+    cout << "Elapsed time for " << lc << "loops is " << elapsedTime << endl;
+  }
+
+
+
+  return (0);
+}
diff --git a/proxy/TestPreProc.h b/proxy/TestPreProc.h
new file mode 100644
index 00000000..fc39ca18
--- /dev/null
+++ b/proxy/TestPreProc.h
@@ -0,0 +1,51 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_TestPreProc_h_)
+#define _TestPreProc_h_
+
+class IOBuffer;
+
+class RequestInput
+{
+public:
+  RequestInput(const char *str, IOBuffer * cb);
+   ~RequestInput();
+
+  void run();
+  bool isDone() const
+  {
+    return (m_len == 0);
+  }
+
+private:
+    RequestInput(const RequestInput &);
+    RequestInput & operator =(const RequestInput &);
+
+
+  char *m_sp;
+  unsigned m_len;
+  IOBuffer *m_cb;
+};
+
+#endif
diff --git a/proxy/TestProxy.cc b/proxy/TestProxy.cc
new file mode 100644
index 00000000..56ff0835
--- /dev/null
+++ b/proxy/TestProxy.cc
@@ -0,0 +1,408 @@
+/** @file
+
+  This file implements the functionality to test the Proxy
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include <limits.h>
+#include "Net.h"
+#include "Disk.h"
+#include "Main.h"
+#include "HostDB.h"
+#include "Cluster.h"
+#include "OneWayTunnel.h"
+#include "OneWayMultiTunnel.h"
+#include "Cache.h"
+
+
+struct TestProxy:Continuation
+{
+  VConnection *vc;
+  VConnection *vconnection_vector[2];
+  VConnection *remote;
+  MIOBuffer *inbuf;
+  MIOBuffer *outbuf;
+  VIO *clusterOutVIO;
+  VIO *inVIO;
+  char host[1024], *url, *url_end, amode;
+  int port;
+  char s[1024];
+  ClusterVCToken token;
+  OneWayTunnel *tunnel;
+  char url_str[1024];
+  VConnection *cachefile;
+  URL *url_struct;
+  HostDBInfo *hostdbinfo;
+  CacheObjInfo *objinfo;
+  HttpHeader *request_header;
+
+  int done()
+  {
+    ink_assert(inbuf);
+    if (inbuf)
+      free_MIOBuffer(inbuf);
+    inbuf = 0;
+    if (outbuf)
+      free_MIOBuffer(outbuf);
+    if (vc)
+      vc->do_io(VIO::CLOSE);
+    if (remote)
+      remote->do_io(VIO::CLOSE);
+    if (cachefile)
+      cachefile->do_io(VIO::CLOSE);
+    if (tunnel)
+      delete tunnel;
+    delete this;
+      return EVENT_DONE;
+  }
+
+  int gets(VIO * vio)
+  {
+    char *sx = s, *x;
+    int t, i;
+    for (x = vio->buffer.mbuf->start; *x && x < vio->buffer.mbuf->end; x++) {
+      if (x - vio->buffer.mbuf->start > 1023)
+        return -1;
+      if (*x == '\n')
+        break;
+      *sx++ = *x;
+    }
+
+    t = 2;
+    for (i = 0; t && s[i]; i++) {
+      if (s[i] == ' ')
+        --t;
+    }
+
+//    i = strrchr(s,' ');
+
+    if (s[i - 2] == 'X') {
+      i -= 2;
+      amode = 'x';
+      while (s[i] != '\0') {
+        s[i] = s[i + 1];
+        ++i;
+      }
+      return x - vio->buffer.mbuf->start - 1;
+    }
+    return x - vio->buffer.mbuf->start;
+  }
+
+  int startEvent(int event, VIO * vio)
+  {
+    char *temp;
+    if (event != VC_EVENT_READ_READY) {
+      printf("TestProxy startEvent error %d %X\n", event, (unsigned int) vio->vc_server);
+      return done();
+    }
+    inVIO = vio;
+    vc = (NetVConnection *) vio->vc_server;
+    int res = 0;
+    char *thost = NULL;
+    if ((res = gets(vio))) {
+      if (res < 0) {
+        printf("TestProxy startEvent line too long\n");
+        return done();
+      }
+      //for (int i = 0; i <= res; i++) fprintf(stderr,"[%c (%d)]\n",s[i],s[i]);
+      s[res] = 0;
+      if ((res > 0) && (s[res - 1] == '\r'))
+        s[res - 1] = 0;
+      // printf("got [%s]\n",s);
+      if (s[4] == '/') {
+        url = s + 5;
+        url_end = strchr(url, ' ');
+        *url_end = 0;
+        SET_HANDLER(fileEvent);
+        diskProcessor.open_vc(this, url, O_RDONLY);
+        return EVENT_DONE;
+      }
+      else
+        thost = s + 11;         // GET http
+      url = strchr(thost, '/'); // done before portStr stompage */
+      temp = strchr(thost, ' ');
+      ink_assert(temp - thost < 1024);
+      ink_strlcpy(url_str, thost, sizeof(url_str));
+      if (!url)
+        return done();
+      char *portStr = strchr(thost, ':');
+      *url = 0;
+      if (portStr == NULL) {
+        port = 80;
+        ink_strlcpy(host, thost, sizeof(host));
+      } else {
+        *portStr = '\0';        /* close off the hostname */
+        port = atoi(portStr + 1);
+        ink_strlcpy(host, thost, sizeof(host));
+        *portStr = ':';
+      }
+      url_end = strchr(url + 1, ' ');
+      SET_HANDLER(dnsEvent);
+      *url = '/';
+      hostDBProcessor.getbyname(this, host);
+      return EVENT_DONE;
+    }
+    return EVENT_CONT;
+  }
+
+  int clusterOpenEvent(int event, void *data)
+  {
+    if (event == CLUSTER_EVENT_OPEN_FAILED)
+      return done();
+    if (event == CLUSTER_EVENT_OPEN) {
+      if (!data)
+        return done();
+      remote = (VConnection *) data;
+      clusterOutVIO = remote->do_io(VIO::WRITE, this, INT64_MAX, inbuf);
+      ink_assert(clusterOutVIO);
+      SET_HANDLER(tunnelEvent);
+      tunnel = new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
+    }
+    return EVENT_CONT;
+  }
+
+  int clusterEvent(int event, VConnection * data)
+  {
+    (void) event;
+    vc = data;
+    if (!vc)
+      return done();
+    SET_HANDLER(startEvent);
+    vc->do_io(VIO::READ, this, INT64_MAX, inbuf);
+    return EVENT_CONT;
+  }
+
+  int fileEvent(int event, DiskVConnection * aremote)
+  {
+    if (event != DISK_EVENT_OPEN) {
+      printf("TestProxy fileEvent error %d\n", event);
+      return done();
+    }
+    remote = aremote;
+    SET_HANDLER(tunnelEvent);
+    tunnel = new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
+    return EVENT_CONT;
+  }
+
+  int dnsEvent(int event, HostDBInfo * info)
+  {
+    if (!info) {
+      printf("TestProxy dnsEvent error %d\n", event);
+      return done();
+    }
+    SET_HANDLER(cacheCheckEvent);
+    url_struct = new URL((const char *) url_str, sizeof(url_str), true);
+    hostdbinfo = info;
+    cacheProcessor.lookup(this, url_struct, false);
+    // SET_HANDLER(connectEvent);
+    // netProcessor.connect(this,info->ip,port,host);
+    return EVENT_DONE;
+  }
+
+  int cacheCheckEvent(int event, void *data)
+  {
+    if (event == CACHE_EVENT_LOOKUP) {
+      if (amode == 'x') {
+        cout << "Removing object from the cache\n";
+        SET_HANDLER(NULL);
+        amode = 0;
+        cacheProcessor.remove(&(((CacheObjInfoVector *) data)->data[0]), false);
+        return done();
+      } else {
+        cout << "Serving the object from cache\n";
+        SET_HANDLER(cacheReadEvent);
+        cacheProcessor.open_read(this, &(((CacheObjInfoVector *) data)->data[0]), false);
+        return EVENT_CONT;
+      }
+    } else if (event == CACHE_EVENT_LOOKUP_FAILED) {
+      cout << "Getting the object from origin server\n";
+      SET_HANDLER(cacheCreateCacheFileEvent);
+      objinfo = new CacheObjInfo;
+      request_header = new HttpHeader;
+      request_header->m_url = *url_struct;
+      objinfo->request = *request_header;
+      cacheProcessor.open_write(this, objinfo, false, CACHE_UNKNOWN_SIZE);
+      return EVENT_DONE;
+    } else {
+      printf("TestProxy cacheCheckEvent error %d\n", event);
+      return done();
+    }
+  }
+
+  int cacheReadEvent(int event, DiskVConnection * aremote)
+  {
+    if (event != CACHE_EVENT_OPEN_READ) {
+      printf("TestProxy cacheReadEvent error %d\n", event);
+      return done();
+    }
+    remote = aremote;
+    SET_HANDLER(tunnelEvent);
+    new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
+    return EVENT_CONT;
+  }
+  int cacheCreateCacheFileEvent(int event, VConnection * acachefile)
+  {
+    if (event != CACHE_EVENT_OPEN_WRITE) {
+      printf("TestProxy cacheCreateCacheFileEvent error %d\n", event);
+      cachefile = 0;
+    } else
+      cachefile = acachefile;
+    SET_HANDLER(cacheSendGetEvent);
+    netProcessor.connect(this, hostdbinfo->ip, port, host);
+    return EVENT_CONT;
+  }
+  int cacheSendGetEvent(int event, NetVConnection * aremote)
+  {
+    if (event != NET_EVENT_OPEN) {
+      printf("TestProxy cacheSendGetEvent error %d\n", event);
+      return done();
+    }
+    remote = aremote;
+    outbuf = new_MIOBuffer();
+    SET_HANDLER(cacheTransRemoteToCacheFileEvent);
+    //aremote->set_inactivity_timeout(HRTIME_MSECONDS(2000));
+    //aremote->set_active_timeout(HRTIME_MSECONDS(60000));
+    *url_end = 0;
+    sprintf(outbuf->start, "GET %s HTTP/1.0\nHost: %s\n\n", url, host);
+    outbuf->fill(strlen(outbuf->start) + 1);
+    remote->do_io(VIO::WRITE, this, INT64_MAX, outbuf);
+    // printf("sending [%s]\n",outbuf->start);
+    return EVENT_CONT;
+  }
+  int cacheTransRemoteToCacheFileEvent(int event, VIO * vio)
+  {
+    if (event != VC_EVENT_WRITE_READY) {
+      printf("TestProxy cacheTransRemoteToCacheFileEvent error %d\n", event);
+      return done();
+    }
+    if (vio->buffer.size())
+      return EVENT_CONT;
+    SET_HANDLER(tunnelEvent);
+    vconnection_vector[0] = vc;
+    vconnection_vector[1] = cachefile;
+    {
+      int n = cachefile ? 2 : 1;
+      cachefile = 0;
+      new OneWayMultiTunnel(remote, vconnection_vector, n, this, TUNNEL_TILL_DONE, true, true, true);
+    }
+    return EVENT_DONE;
+  }
+
+  int connectEvent(int event, NetVConnection * aremote)
+  {
+    if (event != NET_EVENT_OPEN) {
+      printf("TestProxy connectEvent error %d\n", event);
+      return done();
+    }
+    remote = aremote;
+    outbuf = new_MIOBuffer();
+    SET_HANDLER(sendEvent);
+    *url_end = 0;
+    sprintf(outbuf->start, "GET %s HTTP/1.0\nHost: %s\n\n", url, host);
+    outbuf->fill(strlen(outbuf->start) + 1);
+    remote->do_io(VIO::WRITE, this, INT64_MAX, outbuf);
+    // printf("sending [%s]\n",outbuf->start);
+    return EVENT_CONT;
+  }
+
+  int sendEvent(int event, VIO * vio)
+  {
+    if (event != VC_EVENT_WRITE_READY) {
+      printf("TestProxy sendEvent error %d\n", event);
+      return done();
+    }
+    if (vio->buffer.size())
+      return EVENT_CONT;
+    SET_HANDLER(tunnelEvent);
+    clusterOutVIO = (VIO *) - 1;        // some impossible value
+    if (((NetVConnectionBase *) vc)->closed) {
+      printf("TestProxy sendEvent unexpected close %X\n", (unsigned int) vc);
+      vc = 0;
+      return done();
+    }
+    tunnel = new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
+    return EVENT_DONE;
+  }
+
+  int tunnelEvent(int event, Continuation * cont)
+  {
+    (void) cont;
+    if ((VIO *) cont == clusterOutVIO || (VIO *) cont == inVIO) {
+      if (event == VC_EVENT_WRITE_COMPLETE)
+        return EVENT_DONE;
+      if (event == VC_EVENT_ERROR || event == VC_EVENT_EOS)
+        return EVENT_DONE;
+      return EVENT_CONT;
+    }
+    remote = 0;
+    vc = 0;
+    if (event != VC_EVENT_EOS) {
+      printf("TestProxy sendEvent error %d\n", event);
+      return done();
+    }
+    // printf("successful proxy of %s\n",url);
+    return done();
+  }
+
+  TestProxy(MIOBuffer * abuf)
+:  Continuation(new_ProxyMutex()),
+    vc(0), remote(0), inbuf(abuf), outbuf(0), clusterOutVIO(0),
+    inVIO(0), url(0), url_end(0), amode(0), tunnel(0), cachefile(0) {
+    SET_HANDLER(startEvent);
+  }
+};
+
+struct TestAccept:Continuation
+{
+  int startEvent(int event, NetVConnection * e)
+  {
+    if (event == NET_EVENT_ACCEPT) {
+      MIOBuffer *buf = new_MIOBuffer();
+        e->do_io(VIO::READ, new TestProxy(buf), INT64_MAX, buf);
+    } else
+    {
+      printf("TestAccept error %d\n", event);
+      return EVENT_DONE;
+    }
+    return EVENT_CONT;
+  }
+TestAccept():Continuation(new_ProxyMutex()) {
+    SET_HANDLER(startEvent);
+  }
+};
+
+void
+redirect_test(Machine * m, void *data, int len)
+{
+  (void) m;
+  (void) len;
+  MIOBuffer *buf = new_MIOBuffer();
+  TestProxy *c = new TestProxy(buf);
+  SET_CONTINUATION_HANDLER(c, clusterEvent);
+  clusterProcessor.connect(c, *(ClusterVCToken *) data);
+}
+
+#ifndef SUB_TEST
+void
+test()
+{
+  ptest_ClusterFunction = redirect_test;
+  netProcessor.proxy_accept(new TestAccept);
+}
+#endif
diff --git a/proxy/TestRegex.cc b/proxy/TestRegex.cc
new file mode 100644
index 00000000..f1e0297d
--- /dev/null
+++ b/proxy/TestRegex.cc
@@ -0,0 +1,30 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Main.h"
+#include "Regex.h"
+
+void
+test()
+{
+}
diff --git a/proxy/TestSimpleProxy.cc b/proxy/TestSimpleProxy.cc
new file mode 100644
index 00000000..85ca6430
--- /dev/null
+++ b/proxy/TestSimpleProxy.cc
@@ -0,0 +1,160 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <limits.h>
+#include "Net.h"
+#include "Disk.h"
+#include "Main.h"
+#include "DNS.h"
+#include "OneWayTunnel.h"
+
+struct TestProxy:Continuation
+{
+
+  NetVConnection *vc;
+  NetVConnection *remote;
+  MIOBuffer *inbuf;
+  MIOBuffer *outbuf;
+  char *host, *url, *url_end;
+  char s[256];
+
+  int done()
+  {
+    if (inbuf)
+      free_MIOBuffer(inbuf);
+    if (outbuf)
+      free_MIOBuffer(outbuf);
+    if (vc)
+      vc->do_io(VIO::CLOSE);
+    if (remote)
+      remote->do_io(VIO::CLOSE);
+    delete this;
+      return EVENT_DONE;
+  }
+
+  int startEvent(int event, VIO * vio)
+  {
+    if (event != VC_EVENT_READ_READY) {
+      printf("TestProxy startEvent error %d\n", event);
+      return done();
+    }
+    if (vio->buffer.mbuf->gets(s, 255)) {
+      host = s + 11;
+      url = strchr(host, '/');
+      url_end = strchr(url, ' ');
+      *url = 0;
+      dnsProcessor.gethostbyname(host, this);
+      *url = '/';
+      SET_HANDLER(dnsEvent);
+      vc = (NetVConnection *) vio->vc_server;
+      return EVENT_DONE;
+    }
+    return EVENT_CONT;
+  }
+
+  int dnsEvent(int event, HostEnt * ent)
+  {
+    if (!ent) {
+      printf("TestProxy dnsEvent error %d\n", event);
+      return done();
+    }
+    unsigned int ip = *(unsigned int *) ent->h_addr_list[0];
+    netProcessor.connect(this, ip, 80);
+    SET_HANDLER(connectEvent);
+    return EVENT_DONE;
+  }
+
+  int connectEvent(int event, NetVConnection * aremote)
+  {
+    if (!aremote) {
+      printf("TestProxy connectEvent error %d\n", event);
+      return done();
+    }
+    remote = aremote;
+    outbuf = new_MIOBuffer();
+    remote->do_io(VIO::WRITE, this, INT64_MAX, outbuf);
+    *url_end = 0;
+    sprintf(outbuf->start, "GET %s HTTP/1.0\n\n\n", url);
+    outbuf->fill(strlen(outbuf->start) + 1);
+    printf("sending [%s]\n", outbuf->start);
+    SET_HANDLER(sendEvent);
+    return EVENT_CONT;
+  }
+
+  int sendEvent(int event, VIO * vio)
+  {
+    if (event != VC_EVENT_WRITE_READY) {
+      printf("TestProxy sendEvent error %d\n", event);
+      return done();
+    }
+    if (vio->buffer.size())
+      return EVENT_CONT;
+    new OneWayTunnel(remote, vc, this, TUNNEL_TILL_DONE, true, true, true);
+    SET_HANDLER(tunnelEvent);
+    return EVENT_DONE;
+  }
+
+  int tunnelEvent(int event, Continuation * cont)
+  {
+    (void) cont;
+    if (event != VC_EVENT_EOS) {
+      printf("TestProxy sendEvent error %d\n", event);
+      return done();
+    }
+    remote = 0;
+    vc = 0;
+    printf("sucessful proxy of %s\n", url);
+    return done();
+  }
+
+  TestProxy(MIOBuffer * abuf)
+:  Continuation(new_ProxyMutex()), vc(0), remote(0), inbuf(abuf), outbuf(0), host(0), url(0), url_end(0) {
+    SET_HANDLER(startEvent);
+  }
+};
+
+
+struct TestAccept:Continuation
+{
+  int startEvent(int event, NetVConnection * e)
+  {
+    if (!event) {
+      MIOBuffer *buf = new_MIOBuffer();
+        e->do_io(VIO::READ, new TestProxy(buf), INT64_MAX, buf);
+    } else
+    {
+      printf("TestAccept error %d\n", event);
+      return EVENT_DONE;
+    }
+    return EVENT_CONT;
+  }
+TestAccept():Continuation(new_ProxyMutex()) {
+    SET_HANDLER(startEvent);
+  }
+};
+
+void
+test()
+{
+  netProcessor.accept(new TestAccept, accept_port_number);
+}
diff --git a/proxy/TimeTrace.h b/proxy/TimeTrace.h
new file mode 100644
index 00000000..e20ec572
--- /dev/null
+++ b/proxy/TimeTrace.h
@@ -0,0 +1,85 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  TimeTrace.h
+
+
+ ****************************************************************************/
+
+#ifndef _TimeTrace_h_
+#define _TimeTrace_h_
+
+// #define ENABLE_TIME_TRACE
+
+#define TIME_DIST_BUCKETS               500
+#define TIME_DIST_BUCKETS_SIZE          TIME_DIST_BUCKETS+1
+
+#ifdef ENABLE_TIME_TRACE
+extern int cdb_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cdb_cache_callbacks;
+
+extern int callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cache_callbacks;
+
+extern int rmt_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int rmt_cache_callbacks;
+
+extern int lkrmt_callback_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int lkrmt_cache_callbacks;
+
+extern int cntlck_acquire_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cntlck_acquire_events;
+
+extern int immediate_events_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cnt_immediate_events;
+
+extern int inmsg_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int inmsg_events;
+
+extern int open_delay_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int open_delay_events;
+
+extern int cluster_send_time_dist[TIME_DIST_BUCKETS_SIZE];
+extern int cluster_send_events;
+#endif // ENABLE_TIME_TRACE
+
+#ifdef ENABLE_TIME_TRACE
+#define LOG_EVENT_TIME(_start_time, _time_dist, _time_cnt) do { \
+  ink_hrtime now = ink_get_hrtime(); \
+  unsigned int bucket = (now - _start_time) / HRTIME_MSECONDS(10); \
+  if (bucket > TIME_DIST_BUCKETS) \
+    bucket = TIME_DIST_BUCKETS; \
+  ink_atomic_increment(&_time_dist[bucket], 1); \
+  ink_atomic_increment(&_time_cnt, 1); \
+} while(0)
+
+#else // !ENABLE_TIME_TRACE
+#define LOG_EVENT_TIME(_start_time, _time_dist, _time_cnt)
+#endif // !ENABLE_TIME_TRACE
+
+#endif // _TimeTrace_h_
+
+// End of TimeTrace.h
diff --git a/proxy/Transform.cc b/proxy/Transform.cc
new file mode 100644
index 00000000..3df17eda
--- /dev/null
+++ b/proxy/Transform.cc
@@ -0,0 +1,1031 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section thoughts Transform thoughts
+
+    - Must be able to handle a chain of transformations.
+    - Any transformation in the chain may fail.
+      Failure options:
+        - abort the client (if transformed data already sent)
+        - serve the client the untransformed document
+        - remove the failing transformation from the chain and attempt the transformation again (difficult to do)
+        - never send untransformed document to client if client would not understand it (e.g. a set top box)
+    - Must be able to change response header fields up until the point that TRANSFORM_READ_READY is sent to the user.
+
+  @section usage Transform usage
+
+    -# transformProcessor.open (cont, hooks); - returns "tvc", a TransformVConnection if 'hooks != NULL'
+    -# tvc->do_io_write (cont, nbytes, buffer1);
+    -# cont->handleEvent (TRANSFORM_READ_READY, NULL);
+    -# tvc->do_io_read (cont, nbytes, buffer2);
+    -# tvc->do_io_close ();
+
+  @section visualization Transform visualization
+
+  @verbatim
+         +----+     +----+     +----+     +----+
+    -IB->| T1 |-B1->| T2 |-B2->| T3 |-B3->| T4 |-OB->
+         +----+     +----+     +----+     +----+
+  @endverbatim
+
+  Data flows into the first transform in the form of the buffer
+  passed to TransformVConnection::do_io_write (IB). Data flows
+  out of the last transform in the form of the buffer passed to
+  TransformVConnection::do_io_read (OB). Between each transformation is
+  another buffer (B1, B2 and B3).
+
+  A transformation is a Continuation. The continuation is called with the
+  event TRANSFORM_IO_WRITE to initialize the write and TRANSFORM_IO_READ
+  to initialize the read.
+
+*/
+
+#include "ProxyConfig.h"
+#include "P_Net.h"
+#include "MimeTable.h"
+#include "TransformInternal.h"
+#include "HdrUtils.h"
+#include "Log.h"
+
+
+#define ART                   1
+#define AGIF                  2
+
+
+TransformProcessor transformProcessor;
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformProcessor::start()
+{
+#ifdef PREFETCH
+  prefetchProcessor.start();
+#endif
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+VConnection *
+TransformProcessor::open(Continuation *cont, APIHook *hooks)
+{
+  if (hooks) {
+    return new TransformVConnection(cont, hooks);
+  } else {
+    return NULL;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+INKVConnInternal *
+TransformProcessor::null_transform(ProxyMutex *mutex)
+{
+  return new NullTransform(mutex);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+INKVConnInternal *
+TransformProcessor::range_transform(ProxyMutex *mut, RangeRecord *ranges, int num_fields, HTTPHdr *transform_resp, const char * content_type, int content_type_len, int64_t content_length)
+{
+  RangeTransform *range_transform = new RangeTransform(mut, ranges, num_fields, transform_resp, content_type, content_type_len, content_length);
+  return range_transform;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+TransformTerminus::TransformTerminus(TransformVConnection *tvc)
+  : VConnection(tvc->mutex),
+    m_tvc(tvc), m_read_vio(), m_write_vio(), m_event_count(0), m_deletable(0), m_closed(0), m_called_user(0)
+{
+  SET_HANDLER(&TransformTerminus::handle_event);
+}
+
+
+#define RETRY() \
+    if (ink_atomic_increment ((int*) &m_event_count, 1) < 0) { \
+        ink_assert (!"not reached"); \
+    } \
+    eventProcessor.schedule_in (this, HRTIME_MSECONDS (10), ET_NET); \
+    return 0;
+
+
+int
+TransformTerminus::handle_event(int event, void * /* edata ATS_UNUSED */)
+{
+  int val;
+
+  m_deletable = ((m_closed != 0) && (m_tvc->m_closed != 0));
+
+  val = ink_atomic_increment((int *) &m_event_count, -1);
+
+  Debug("transform", "[TransformTerminus::handle_event] event_count %d", m_event_count);
+
+  if (val <= 0) {
+    ink_assert(!"not reached");
+  }
+
+  m_deletable = m_deletable && (val == 1);
+
+  if (m_closed != 0 && m_tvc->m_closed != 0) {
+    if (m_deletable) {
+      Debug("transform", "TransformVConnection destroy [0x%lx]", (long) m_tvc);
+      delete m_tvc;
+      return 0;
+    }
+  } else if (m_write_vio.op == VIO::WRITE) {
+    if (m_read_vio.op == VIO::NONE) {
+      if (!m_called_user) {
+        Debug("transform", "TransformVConnection calling user: %d %d [0x%lx] [0x%lx]",
+              m_event_count, event, (long) m_tvc, (long) m_tvc->m_cont);
+
+        m_called_user = 1;
+        // It is our belief this is safe to pass a reference, i.e. its scope
+        // and locking ought to be safe across the lifetime of the continuation.
+        m_tvc->m_cont->handleEvent(TRANSFORM_READ_READY, (void *)&m_write_vio.nbytes);
+      }
+    } else {
+      int64_t towrite;
+
+      MUTEX_TRY_LOCK(trylock1, m_write_vio.mutex, this_ethread());
+      if (!trylock1) {
+        RETRY();
+      }
+
+      MUTEX_TRY_LOCK(trylock2, m_read_vio.mutex, this_ethread());
+      if (!trylock2) {
+        RETRY();
+      }
+
+      if (m_closed != 0) {
+        return 0;
+      }
+
+      if (m_write_vio.op == VIO::NONE) {
+        return 0;
+      }
+
+      towrite = m_write_vio.ntodo();
+      if (towrite > 0) {
+        if (towrite > m_write_vio.get_reader()->read_avail()) {
+          towrite = m_write_vio.get_reader()->read_avail();
+        }
+        if (towrite > m_read_vio.ntodo()) {
+          towrite = m_read_vio.ntodo();
+        }
+
+        if (towrite > 0) {
+          m_read_vio.get_writer()->write(m_write_vio.get_reader(), towrite);
+          m_read_vio.ndone += towrite;
+
+          m_write_vio.get_reader()->consume(towrite);
+          m_write_vio.ndone += towrite;
+        }
+      }
+
+      if (m_write_vio.ntodo() > 0) {
+        if (towrite > 0) {
+          m_write_vio._cont->handleEvent(VC_EVENT_WRITE_READY, &m_write_vio);
+        }
+      } else {
+        m_write_vio._cont->handleEvent(VC_EVENT_WRITE_COMPLETE, &m_write_vio);
+      }
+
+      // We could have closed on the write callback
+      if (m_closed != 0 && m_tvc->m_closed != 0) {
+        return 0;
+      }
+
+      if (m_read_vio.ntodo() > 0) {
+        if (m_write_vio.ntodo() <= 0) {
+          m_read_vio._cont->handleEvent(VC_EVENT_EOS, &m_read_vio);
+        } else if (towrite > 0) {
+          m_read_vio._cont->handleEvent(VC_EVENT_READ_READY, &m_read_vio);
+        }
+      } else {
+        m_read_vio._cont->handleEvent(VC_EVENT_READ_COMPLETE, &m_read_vio);
+      }
+    }
+  } else {
+    MUTEX_TRY_LOCK(trylock2, m_read_vio.mutex, this_ethread());
+    if (!trylock2) {
+      RETRY();
+    }
+
+    if (m_closed != 0) {
+      // The terminus was closed, but the enclosing transform
+      // vconnection wasn't. If the terminus was aborted then we
+      // call the read_vio cont back with VC_EVENT_ERROR. If it
+      // was closed normally then we call it back with
+      // VC_EVENT_EOS. If a read operation hasn't been initiated
+      // yet and we haven't called the user back then we call
+      // the user back instead of the read_vio cont (which won't
+      // exist).
+      if (m_tvc->m_closed == 0) {
+        int ev = (m_closed == TS_VC_CLOSE_ABORT) ? VC_EVENT_ERROR : VC_EVENT_EOS;
+
+        if (!m_called_user) {
+          m_called_user = 1;
+          m_tvc->m_cont->handleEvent(ev, NULL);
+        } else {
+          ink_assert(m_read_vio._cont != NULL);
+          m_read_vio._cont->handleEvent(ev, &m_read_vio);
+        }
+      }
+
+      return 0;
+    }
+  }
+
+  return 0;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+VIO *
+TransformTerminus::do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf)
+{
+  m_read_vio.buffer.writer_for(buf);
+  m_read_vio.op = VIO::READ;
+  m_read_vio.set_continuation(c);
+  m_read_vio.nbytes = nbytes;
+  m_read_vio.ndone = 0;
+  m_read_vio.vc_server = this;
+
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+  Debug("transform", "[TransformTerminus::do_io_read] event_count %d", m_event_count);
+
+  eventProcessor.schedule_imm(this, ET_NET);
+
+  return &m_read_vio;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+VIO *
+TransformTerminus::do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner)
+{
+  // In the process of eliminating 'owner' mode so asserting against it
+  ink_assert(!owner);
+  m_write_vio.buffer.reader_for(buf);
+  m_write_vio.op = VIO::WRITE;
+  m_write_vio.set_continuation(c);
+  m_write_vio.nbytes = nbytes;
+  m_write_vio.ndone = 0;
+  m_write_vio.vc_server = this;
+
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+  Debug("transform", "[TransformTerminus::do_io_write] event_count %d", m_event_count);
+
+  eventProcessor.schedule_imm(this, ET_NET);
+
+  return &m_write_vio;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformTerminus::do_io_close(int error)
+{
+  if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+    ink_assert(!"not reached");
+  }
+
+  INK_WRITE_MEMORY_BARRIER;
+
+  if (error != -1) {
+    lerrno = error;
+    m_closed = TS_VC_CLOSE_ABORT;
+  } else {
+    m_closed = TS_VC_CLOSE_NORMAL;
+  }
+
+  m_read_vio.op = VIO::NONE;
+  m_read_vio.buffer.clear();
+
+  m_write_vio.op = VIO::NONE;
+  m_write_vio.buffer.clear();
+
+  eventProcessor.schedule_imm(this, ET_NET);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformTerminus::do_io_shutdown(ShutdownHowTo_t howto)
+{
+  if ((howto == IO_SHUTDOWN_READ) || (howto == IO_SHUTDOWN_READWRITE)) {
+    m_read_vio.op = VIO::NONE;
+    m_read_vio.buffer.clear();
+  }
+
+  if ((howto == IO_SHUTDOWN_WRITE) || (howto == IO_SHUTDOWN_READWRITE)) {
+    m_write_vio.op = VIO::NONE;
+    m_write_vio.buffer.clear();
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformTerminus::reenable(VIO *vio)
+{
+  ink_assert((vio == &m_read_vio) || (vio == &m_write_vio));
+
+  if (m_event_count == 0) {
+
+    if (ink_atomic_increment((int *) &m_event_count, 1) < 0) {
+      ink_assert(!"not reached");
+    }
+    Debug("transform", "[TransformTerminus::reenable] event_count %d", m_event_count);
+    eventProcessor.schedule_imm(this, ET_NET);
+  } else {
+    Debug("transform", "[TransformTerminus::reenable] skipping due to " "pending events");
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+TransformVConnection::TransformVConnection(Continuation *cont, APIHook *hooks)
+:TransformVCChain(cont->mutex), m_cont(cont), m_terminus(this), m_closed(0)
+{
+  INKVConnInternal *xform;
+
+  SET_HANDLER(&TransformVConnection::handle_event);
+
+  ink_assert(hooks != NULL);
+
+  m_transform = hooks->m_cont;
+  while (hooks->m_link.next) {
+    xform = (INKVConnInternal *) hooks->m_cont;
+    hooks = hooks->m_link.next;
+    xform->do_io_transform(hooks->m_cont);
+  }
+  xform = (INKVConnInternal *) hooks->m_cont;
+  xform->do_io_transform(&m_terminus);
+
+  Debug("transform", "TransformVConnection create [0x%lx]", (long) this);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+TransformVConnection::~TransformVConnection()
+{
+  // Clear the continuations in terminus VConnections so that
+  //  mutex's get released (INKqa05596)
+  m_terminus.m_read_vio.set_continuation(NULL);
+  m_terminus.m_write_vio.set_continuation(NULL);
+  m_terminus.mutex = NULL;
+  this->mutex = NULL;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+TransformVConnection::handle_event(int /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  ink_assert(!"not reached");
+  return 0;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+VIO *
+TransformVConnection::do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf)
+{
+  Debug("transform", "TransformVConnection do_io_read: 0x%lx [0x%lx]", (long) c, (long) this);
+
+  return m_terminus.do_io_read(c, nbytes, buf);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+VIO *
+TransformVConnection::do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf,
+                                  bool /* owner ATS_UNUSED */)
+{
+  Debug("transform", "TransformVConnection do_io_write: 0x%lx [0x%lx]", (long) c, (long) this);
+
+  return m_transform->do_io_write(c, nbytes, buf);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformVConnection::do_io_close(int error)
+{
+  Debug("transform", "TransformVConnection do_io_close: %d [0x%lx]", error, (long) this);
+
+  if (error != -1) {
+    m_closed = TS_VC_CLOSE_ABORT;
+  } else {
+    m_closed = TS_VC_CLOSE_NORMAL;
+  }
+
+  m_transform->do_io_close(error);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformVConnection::do_io_shutdown(ShutdownHowTo_t howto)
+{
+  ink_assert(howto == IO_SHUTDOWN_WRITE);
+
+  Debug("transform", "TransformVConnection do_io_shutdown: %d [0x%lx]", howto, (long) this);
+
+  m_transform->do_io_shutdown(howto);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+TransformVConnection::reenable(VIO * /* vio ATS_UNUSED */)
+{
+  ink_assert(!"not reached");
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+uint64_t
+TransformVConnection::backlog(uint64_t limit)
+{
+  uint64_t b = 0; // backlog
+  VConnection* raw_vc = m_transform;
+  MIOBuffer* w;
+  while (raw_vc && raw_vc != &m_terminus) {
+    INKVConnInternal* vc = static_cast<INKVConnInternal*>(raw_vc);
+    if (0 != (w = vc->m_read_vio.buffer.writer()))
+      b += w->max_read_avail();
+    if (b >= limit) return b;
+    raw_vc = vc->m_output_vc;
+  }
+  if (0 != (w = m_terminus.m_read_vio.buffer.writer()))
+    b += w->max_read_avail();
+  if (b >= limit) return b;
+
+  IOBufferReader* r = m_terminus.m_write_vio.get_reader();
+  if (r)
+    b += r->read_avail();
+  return b;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+TransformControl::TransformControl()
+:Continuation(new_ProxyMutex()), m_hooks(), m_tvc(NULL), m_read_buf(NULL), m_write_buf(NULL)
+{
+  SET_HANDLER(&TransformControl::handle_event);
+
+  m_hooks.append(transformProcessor.null_transform(new_ProxyMutex()));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+TransformControl::handle_event(int event, void * /* edata ATS_UNUSED */)
+{
+  switch (event) {
+  case EVENT_IMMEDIATE:
+    {
+      char *s, *e;
+
+      ink_assert(m_tvc == NULL);
+      if (http_global_hooks && http_global_hooks->get(TS_HTTP_RESPONSE_TRANSFORM_HOOK)) {
+        m_tvc = transformProcessor.open(this, http_global_hooks->get(TS_HTTP_RESPONSE_TRANSFORM_HOOK));
+      } else {
+        m_tvc = transformProcessor.open(this, m_hooks.get());
+      }
+      ink_assert(m_tvc != NULL);
+
+      m_write_buf = new_MIOBuffer();
+      s = m_write_buf->end();
+      e = m_write_buf->buf_end();
+
+      memset(s, 'a', e - s);
+      m_write_buf->fill(e - s);
+
+      m_tvc->do_io_write(this, 4 * 1024, m_write_buf->alloc_reader());
+      break;
+    }
+
+  case TRANSFORM_READ_READY:
+    {
+      MIOBuffer *buf = new_empty_MIOBuffer();
+  
+      m_read_buf = buf->alloc_reader();
+      m_tvc->do_io_read(this, INT64_MAX, buf);
+      break;
+    }
+
+  case VC_EVENT_READ_COMPLETE:
+  case VC_EVENT_EOS:
+    m_tvc->do_io_close();
+
+    free_MIOBuffer(m_read_buf->mbuf);
+    m_read_buf = NULL;
+
+    free_MIOBuffer(m_write_buf);
+    m_write_buf = NULL;
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    break;
+
+  default:
+    ink_assert(!"not reached");
+    break;
+  }
+
+  return 0;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+NullTransform::NullTransform(ProxyMutex *_mutex)
+  : INKVConnInternal(NULL, reinterpret_cast<TSMutex>(_mutex)),
+    m_output_buf(NULL), m_output_reader(NULL), m_output_vio(NULL)
+{
+  SET_HANDLER(&NullTransform::handle_event);
+
+  Debug("transform", "NullTransform create [0x%lx]", (long) this);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+NullTransform::~NullTransform()
+{
+  if (m_output_buf) {
+    free_MIOBuffer(m_output_buf);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+NullTransform::handle_event(int event, void *edata)
+{
+  handle_event_count(event);
+
+  Debug("transform", "[NullTransform::handle_event] event count %d", m_event_count);
+
+  if (m_closed) {
+    if (m_deletable) {
+      Debug("transform", "NullTransform destroy: %" PRId64" [%p]", m_output_vio ? m_output_vio->ndone : 0, this);
+      delete this;
+    }
+  } else {
+    switch (event) {
+    case VC_EVENT_ERROR:
+      m_write_vio._cont->handleEvent(VC_EVENT_ERROR, &m_write_vio);
+      break;
+    case VC_EVENT_WRITE_COMPLETE:
+      ink_assert(m_output_vio == (VIO *) edata);
+
+      // The write to the output vconnection completed. This
+      // could only be the case if the data being fed into us
+      // has also completed.
+      ink_assert(m_write_vio.ntodo() == 0);
+
+      m_output_vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+      break;
+    case VC_EVENT_WRITE_READY:
+    default:
+      {
+        int64_t towrite;
+        int64_t avail;
+
+        ink_assert(m_output_vc != NULL);
+
+        if (!m_output_vio) {
+          m_output_buf = new_empty_MIOBuffer();
+          m_output_reader = m_output_buf->alloc_reader();
+          m_output_vio = m_output_vc->do_io_write(this, m_write_vio.nbytes, m_output_reader);
+        }
+
+        MUTEX_TRY_LOCK(trylock, m_write_vio.mutex, this_ethread());
+        if (!trylock) {
+          retry(10);
+          return 0;
+        }
+
+        if (m_closed) {
+          return 0;
+        }
+
+        if (m_write_vio.op == VIO::NONE) {
+          m_output_vio->nbytes = m_write_vio.ndone;
+          m_output_vio->reenable();
+          return 0;
+        }
+
+        towrite = m_write_vio.ntodo();
+        if (towrite > 0) {
+          avail = m_write_vio.get_reader()->read_avail();
+          if (towrite > avail) {
+            towrite = avail;
+          }
+
+          if (towrite > 0) {
+            Debug("transform", "[NullTransform::handle_event] " "writing %" PRId64" bytes to output", towrite);
+            m_output_buf->write(m_write_vio.get_reader(), towrite);
+
+            m_write_vio.get_reader()->consume(towrite);
+            m_write_vio.ndone += towrite;
+          }
+        }
+
+        if (m_write_vio.ntodo() > 0) {
+          if (towrite > 0) {
+            m_output_vio->reenable();
+            m_write_vio._cont->handleEvent(VC_EVENT_WRITE_READY, &m_write_vio);
+          }
+        } else {
+          m_output_vio->nbytes = m_write_vio.ndone;
+          m_output_vio->reenable();
+          m_write_vio._cont->handleEvent(VC_EVENT_WRITE_COMPLETE, &m_write_vio);
+        }
+
+        break;
+      }
+    }
+  }
+
+  return 0;
+}
+
+
+/*-------------------------------------------------------------------------
+  Reasons the JG transform cannot currently be a plugin:
+    a) Uses the config system
+       - Easily avoided by using the plugin.config file to pass the config
+         values as parameters to the plugin initialization routine.
+    b) Uses the stat system
+       - FIXME: should probably solve this.
+  -------------------------------------------------------------------------*/
+
+/* the JG transform is now a plugin. All the JG code,
+   config variables and stats are removed from Transform.cc */
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+#ifdef TS_HAS_TESTS
+void
+TransformTest::run()
+{
+  if (is_action_tag_set("transform_test")) {
+    eventProcessor.schedule_imm(new TransformControl(), ET_NET);
+  }
+}
+#endif
+
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+RangeTransform::RangeTransform(ProxyMutex *mut, RangeRecord *ranges, int num_fields, HTTPHdr * transform_resp, const char * content_type, int content_type_len, int64_t content_length)
+  : INKVConnInternal(NULL, reinterpret_cast<TSMutex>(mut)),
+  m_output_buf(NULL),
+  m_output_reader(NULL),
+  m_transform_resp(transform_resp),
+  m_output_vio(NULL),
+  m_range_content_length(0),
+  m_num_range_fields(num_fields),
+  m_current_range(0), m_content_type(content_type), m_content_type_len(content_type_len), m_ranges(ranges), m_output_cl(content_length), m_done(0)
+{
+  SET_HANDLER(&RangeTransform::handle_event);
+
+  m_num_chars_for_cl = num_chars_for_int(m_range_content_length);
+  Debug("http_trans", "RangeTransform creation finishes");
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+RangeTransform::~RangeTransform()
+{
+  if (m_output_buf)
+    free_MIOBuffer(m_output_buf);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+RangeTransform::handle_event(int event, void *edata)
+{
+  handle_event_count(event);
+
+  if (m_closed) {
+    if (m_deletable) {
+      Debug("http_trans", "RangeTransform destroy: %p ndone=%" PRId64, this, m_output_vio ? m_output_vio->ndone : 0);
+      delete this;
+    }
+  } else {
+    switch (event) {
+    case VC_EVENT_ERROR:
+      m_write_vio._cont->handleEvent(VC_EVENT_ERROR, &m_write_vio);
+      break;
+    case VC_EVENT_WRITE_COMPLETE:
+      ink_assert(m_output_vio == (VIO *) edata);
+      m_output_vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+      break;
+    case VC_EVENT_WRITE_READY:
+    default:
+      ink_assert(m_output_vc != NULL);
+
+      if (!m_output_vio) {
+        m_output_buf = new_empty_MIOBuffer();
+        m_output_reader = m_output_buf->alloc_reader();
+        m_output_vio = m_output_vc->do_io_write(this, m_output_cl, m_output_reader);
+
+        change_response_header();
+
+        if (m_num_range_fields > 1) {
+          add_boundary(false);
+          add_sub_header(m_current_range);
+        }
+      }
+
+      MUTEX_TRY_LOCK(trylock, m_write_vio.mutex, this_ethread());
+      if (!trylock) {
+        retry(10);
+        return 0;
+      }
+
+      if (m_closed) {
+        return 0;
+      }
+
+      if (m_write_vio.op == VIO::NONE) {
+        m_output_vio->nbytes = m_done;
+        m_output_vio->reenable();
+        return 0;
+      }
+
+      transform_to_range();
+      break;
+    }
+  }
+
+  return 0;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+RangeTransform::transform_to_range()
+{
+  IOBufferReader *reader = m_write_vio.get_reader();
+  int64_t toskip, tosend, avail;
+  const int64_t *end, *start;
+  int64_t prev_end = 0;
+  int64_t *done_byte;
+
+  end = &m_ranges[m_current_range]._end;
+  done_byte = &m_ranges[m_current_range]._done_byte;
+  start = &m_ranges[m_current_range]._start;
+  avail = reader->read_avail();
+
+  while (true) {
+    if (*done_byte < (*start - 1)) {
+      toskip = *start - *done_byte - 1;
+
+      if (toskip > avail)
+        toskip = avail;
+
+      if (toskip > 0) {
+        reader->consume(toskip);
+        *done_byte += toskip;
+        avail = reader->read_avail();
+      }
+    }
+
+    if (avail > 0) {
+      tosend = *end - *done_byte;
+
+      if (tosend > avail)
+        tosend = avail;
+
+      m_output_buf->write(reader, tosend);
+      reader->consume(tosend);
+
+      m_done += tosend;
+      *done_byte += tosend;
+    }
+
+    if (*done_byte == *end)
+      prev_end = *end;
+
+    // move to next Range if done one
+    // ignore bad Range: _done_byte -1, _end -1
+    while (*done_byte == *end) {
+      m_current_range++;
+
+      if (m_current_range == m_num_range_fields) {
+        if (m_num_range_fields > 1) {
+          m_done += m_output_buf->write("\r\n", 2);
+          add_boundary(true);
+        }
+
+        Debug("http_trans", "total bytes of Range response body is %" PRId64, m_done);
+        m_output_vio->nbytes = m_done;
+        m_output_vio->reenable();
+
+        // if we are detaching before processing all the
+        //   input data, send VC_EVENT_EOS to let the upstream know
+        //   that it can rely on us consuming any more data
+        int cb_event = (m_write_vio.ntodo() > 0) ? VC_EVENT_EOS : VC_EVENT_WRITE_COMPLETE;
+        m_write_vio._cont->handleEvent(cb_event, &m_write_vio);
+        return;
+      }
+
+      end = &m_ranges[m_current_range]._end;
+      done_byte = &m_ranges[m_current_range]._done_byte;
+      start = &m_ranges[m_current_range]._start;
+
+      // if this is a good Range
+      if (*end != -1) {
+        m_done += m_output_buf->write("\r\n", 2);
+        add_boundary(false);
+        add_sub_header(m_current_range);
+
+        // keep this part for future support of out-of-order Range
+        // if this is NOT a sequential Range compared to the previous one -
+        // start of current Range is larger than the end of last Range, do
+        // not need to go back to the start of the IOBuffereReader.
+        // Otherwise, reset the IOBufferReader.
+        //if ( *start > prev_end )
+        *done_byte = prev_end;
+        //else
+        //  reader->reset();
+
+        break;
+      }
+    }
+
+    // When we need to read and there is nothing available
+    avail = reader->read_avail();
+    if (avail == 0)
+      break;
+  }
+
+  m_output_vio->reenable();
+  m_write_vio._cont->handleEvent(VC_EVENT_WRITE_READY, &m_write_vio);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/*
+ * these two need be changed at the same time
+ */
+
+static char bound[] = "RANGE_SEPARATOR";
+static char range_type[] = "multipart/byteranges; boundary=RANGE_SEPARATOR";
+static char cont_type[] = "Content-type: ";
+static char cont_range[] = "Content-range: bytes ";
+
+void
+RangeTransform::add_boundary(bool end)
+{
+  m_done += m_output_buf->write("--", 2);
+  m_done += m_output_buf->write(bound, sizeof(bound) - 1);
+
+  if (end)
+    m_done += m_output_buf->write("--", 2);
+
+  m_done += m_output_buf->write("\r\n", 2);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+#define RANGE_NUMBERS_LENGTH 60
+
+void
+RangeTransform::add_sub_header(int index)
+{
+  // this should be large enough to hold three integers!
+  char numbers[RANGE_NUMBERS_LENGTH];
+  int len;
+
+  m_done += m_output_buf->write(cont_type, sizeof(cont_type) - 1);
+  if (m_content_type)
+    m_done += m_output_buf->write(m_content_type, m_content_type_len);
+  m_done += m_output_buf->write("\r\n", 2);
+  m_done += m_output_buf->write(cont_range, sizeof(cont_range) - 1);
+
+  snprintf(numbers, sizeof(numbers), "%" PRId64 "-%" PRId64 "/%" PRId64 "", m_ranges[index]._start, m_ranges[index]._end, m_output_cl);
+  len = strlen(numbers);
+  if (len < RANGE_NUMBERS_LENGTH)
+    m_done += m_output_buf->write(numbers, len);
+  m_done += m_output_buf->write("\r\n\r\n", 4);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/*
+ * this function changes the response header to reflect this is
+ * a Range response.
+ */
+
+void
+RangeTransform::change_response_header()
+{
+  MIMEField *field;
+  char *reason_phrase;
+  HTTPStatus status_code;
+  
+  ink_release_assert(m_transform_resp);
+
+  status_code = HTTP_STATUS_PARTIAL_CONTENT;
+  m_transform_resp->status_set(status_code);
+  reason_phrase = (char *) (http_hdr_reason_lookup(status_code));
+  m_transform_resp->reason_set(reason_phrase, strlen(reason_phrase));
+
+  if (m_num_range_fields > 1) {
+    // set the right Content-Type for multiple entry Range
+    field = m_transform_resp->field_find(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+
+    if (field != NULL)
+      m_transform_resp->field_delete(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+
+
+    field = m_transform_resp->field_create(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+    field->value_append(m_transform_resp->m_heap, m_transform_resp->m_mime, range_type, sizeof(range_type) - 1);
+
+    m_transform_resp->field_attach(field);
+  } else {
+    char numbers[RANGE_NUMBERS_LENGTH];
+    m_transform_resp->field_delete(MIME_FIELD_CONTENT_RANGE, MIME_LEN_CONTENT_RANGE);
+    field = m_transform_resp->field_create(MIME_FIELD_CONTENT_RANGE, MIME_LEN_CONTENT_RANGE);
+    snprintf(numbers, sizeof(numbers), "bytes %" PRId64"-%" PRId64"/%" PRId64, m_ranges[0]._start, m_ranges[0]._end, m_output_cl);
+    field->value_set(m_transform_resp->m_heap, m_transform_resp->m_mime, numbers, strlen(numbers));
+    m_transform_resp->field_attach(field);
+  }
+}
+
+#undef RANGE_NUMBERS_LENGTH
diff --git a/proxy/Transform.h b/proxy/Transform.h
new file mode 100644
index 00000000..26ac2be7
--- /dev/null
+++ b/proxy/Transform.h
@@ -0,0 +1,117 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __TRANSFORM_H__
+#define __TRANSFORM_H__
+
+#include "P_EventSystem.h"
+#include "HTTP.h"
+#include "InkAPIInternal.h"
+
+#define TRANSFORM_READ_READY   (TRANSFORM_EVENTS_START + 0)
+
+typedef struct _RangeRecord
+{
+  _RangeRecord() :
+  _start(-1), _end(-1), _done_byte(-1)
+  { }
+
+  int64_t _start;
+  int64_t _end;
+  int64_t _done_byte;
+} RangeRecord;
+
+class TransformProcessor
+{
+public:
+  void start();
+
+public:
+  VConnection * open(Continuation * cont, APIHook * hooks);
+  INKVConnInternal *null_transform(ProxyMutex * mutex);
+  INKVConnInternal *range_transform(ProxyMutex * mutex, RangeRecord * ranges, int, HTTPHdr *, const char * content_type, int content_type_len, int64_t content_length);
+};
+
+#ifdef TS_HAS_TESTS
+class TransformTest
+{
+public:
+  static void run();
+};
+#endif
+
+/** A protocol class.
+    This provides transform VC specific methods for external access
+    without exposing internals or requiring extra includes.
+*/
+class TransformVCChain : public VConnection
+{
+ protected:
+  /// Required constructor
+  TransformVCChain(ProxyMutex* m);
+ public:
+  /** Compute the backlog.  This is the amount of data ready to read
+      for each element of the chain.  If @a limit is non-negative then
+      the method will return as soon as the computed backlog is at
+      least that large. This provides for more efficient checking if
+      the caller is interested only in whether the backlog is at least
+      @a limit. The default is to accurately compute the backlog.
+  */
+  virtual uint64_t backlog(
+			   uint64_t limit = INTU64_MAX ///< Maximum value of interest
+			  ) = 0;
+};
+
+inline
+TransformVCChain::TransformVCChain(ProxyMutex* m)
+		 : VConnection(m)
+{
+}
+
+///////////////////////////////////////////////////////////////////
+/// RangeTransform implementation
+/// handling Range requests from clients
+///////////////////////////////////////////////////////////////////
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline static int
+num_chars_for_int(int64_t i)
+{
+  int k = 1;
+
+  if (i < 0)
+    return 0;
+
+  while ((i /= 10) != 0)
+    ++k;
+
+  return k;
+}
+
+extern TransformProcessor transformProcessor;
+
+
+#endif /* __TRANSFORM_H__ */
+
diff --git a/proxy/TransformInternal.h b/proxy/TransformInternal.h
new file mode 100644
index 00000000..873561e1
--- /dev/null
+++ b/proxy/TransformInternal.h
@@ -0,0 +1,166 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __TRANSFORM_INTERNAL_H__
+#define __TRANSFORM_INTERNAL_H__
+
+
+#include "HttpSM.h"
+#include "MIME.h"
+#include "Transform.h"
+#include "P_EventSystem.h"
+
+
+class TransformVConnection;
+
+
+class TransformTerminus:public VConnection
+{
+public:
+  TransformTerminus(TransformVConnection * tvc);
+
+  int handle_event(int event, void *edata);
+
+  VIO *do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf);
+  VIO *do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner = false);
+  void do_io_close(int lerrno = -1);
+  void do_io_shutdown(ShutdownHowTo_t howto);
+
+  void reenable(VIO * vio);
+
+public:
+  TransformVConnection * m_tvc;
+  VIO m_read_vio;
+  VIO m_write_vio;
+  volatile int m_event_count;
+  volatile int m_deletable;
+  volatile int m_closed;
+  int m_called_user;
+};
+
+
+class TransformVConnection:public TransformVCChain
+{
+public:
+  TransformVConnection(Continuation * cont, APIHook * hooks);
+  ~TransformVConnection();
+
+  int handle_event(int event, void *edata);
+
+  VIO *do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf);
+  VIO *do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner = false);
+  void do_io_close(int lerrno = -1);
+  void do_io_shutdown(ShutdownHowTo_t howto);
+
+  void reenable(VIO * vio);
+
+  /** Compute the backlog.
+      @return The actual backlog, or a value at least @a limit.
+  */
+  virtual uint64_t backlog(uint64_t limit = INTU64_MAX);
+
+public:
+  VConnection * m_transform;
+  Continuation *m_cont;
+  TransformTerminus m_terminus;
+  volatile int m_closed;
+};
+
+
+class TransformControl:public Continuation
+{
+public:
+  TransformControl();
+
+  int handle_event(int event, void *edata);
+
+public:
+  APIHooks m_hooks;
+  VConnection *m_tvc;
+  IOBufferReader *m_read_buf;
+  MIOBuffer *m_write_buf;
+};
+
+
+class NullTransform:public INKVConnInternal
+{
+public:
+  NullTransform(ProxyMutex * mutex);
+  ~NullTransform();
+
+  int handle_event(int event, void *edata);
+
+public:
+  MIOBuffer * m_output_buf;
+  IOBufferReader *m_output_reader;
+  VIO *m_output_vio;
+};
+
+
+class RangeTransform:public INKVConnInternal
+{
+public:
+  RangeTransform(ProxyMutex * mutex, RangeRecord * ranges, int num_fields, HTTPHdr *transform_resp, const char * content_type, int content_type_len, int64_t content_length);
+  ~RangeTransform();
+
+  // void parse_range_and_compare();
+  int handle_event(int event, void *edata);
+
+  void transform_to_range();
+  void add_boundary(bool end);
+  void add_sub_header(int index);
+  void change_response_header();
+  void calculate_output_cl();
+
+public:
+  MIOBuffer * m_output_buf;
+  IOBufferReader *m_output_reader;
+  
+  
+  // MIMEField *m_range_field;
+  HTTPHdr *m_transform_resp;
+  VIO *m_output_vio;
+  int64_t m_range_content_length;
+  int m_num_chars_for_cl;
+  int m_num_range_fields;
+  int m_current_range;
+  const char *m_content_type;
+  int m_content_type_len;
+  RangeRecord *m_ranges;
+  int64_t m_output_cl;
+  int64_t m_done;
+  
+};
+
+#define PREFETCH
+#ifdef PREFETCH
+class PrefetchProcessor
+{
+public:
+  void start();
+};
+
+extern PrefetchProcessor prefetchProcessor;
+#endif //PREFETCH
+
+#endif /* __TRANSFORM_INTERNAL_H__ */
diff --git a/proxy/UDPAPIClientTest.cc b/proxy/UDPAPIClientTest.cc
new file mode 100644
index 00000000..2e22649d
--- /dev/null
+++ b/proxy/UDPAPIClientTest.cc
@@ -0,0 +1,116 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "UDPAPIClientTest.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+
+char sendBuff[] = "I'm Alive.";
+
+FILE *fp;
+
+void
+UDPClientTestInit()
+{
+  TSCont cont;
+  unsigned long ip;
+  TSMutex readMutexp;
+
+  ip = inet_addr("209.131.48.79");
+  readMutexp = TSMutexCreate();
+  cont = TSContCreate(&UDPClient_handle_callbacks, readMutexp);
+  fp = fopen("UDPAPI.dbg", "a+");
+  fprintf(fp, "UDPClient Init called\n");
+  fclose(fp);
+  INKUDPBind(cont, ip, 9999);
+
+}
+
+int
+UDPClient_handle_callbacks(TSCont cont, TSEvent event, void *e)
+{
+  INKUDPacketQueue packetQueue;
+  INKUDPPacket packet;
+  TSIOBufferBlock recvBuffBlock;
+  unsigned int destIp = inet_addr("209.131.48.79");
+  int destPort = 1813;
+  INKUDPConn UDPConn;
+  TSIOBufferReader reader;
+  TSIOBuffer iobuffer;
+  const char *buf;
+  int avail, total_len = 0;
+  char recvBuff[1024];
+  fp = fopen("UDPAPI.dbg", "a+");
+
+  switch (event) {
+
+  case TS_NET_EVENT_DATAGRAM_OPEN:
+    UDPConn = (INKUDPConn) e;
+    INKUDPRecvFrom(cont, UDPConn);
+    INKUDPSendTo(cont, UDPConn, destIp, destPort, sendBuff, strlen(sendBuff));
+    fprintf(fp, "sent %s\n.", (const char *) sendBuff);
+
+    break;
+
+  case TS_NET_EVENT_DATAGRAM_READ_READY:
+    fprintf(fp, "read ready called\n.");
+    packetQueue = (INKUDPacketQueue) e;
+
+    while ((packet = INKUDPPacketGet(packetQueue)) != NULL) {
+      recvBuffBlock = INKUDPPacketBufferBlockGet(packet);
+
+      iobuffer = TSIOBufferCreate();
+      reader = TSIOBufferReaderAlloc(iobuffer);
+      TSIOBufferAppend(iobuffer, recvBuffBlock);
+      buf = TSIOBufferBlockReadStart(recvBuffBlock, reader, &avail);
+
+      if (avail > 0) {
+
+        for (int i = 0; i < avail; i++)
+          fprintf(fp, "%c", *(buf + i));
+
+
+        memcpy((char *) &recvBuff + total_len, buf, avail);
+        TSIOBufferReaderConsume(reader, avail);
+        total_len += avail;
+      }
+
+      /* INKqa10255: we'd free the memory  - jinsheng */
+      INKUDPPacketDestroy(packet);
+      TSIOBufferReaderFree(reader);
+      TSIOBufferDestroy(iobuffer);
+    }
+
+    break;
+
+  case TS_NET_EVENT_DATAGRAM_WRITE_COMPLETE:
+    break;
+
+  }
+  fclose(fp);
+  return TS_EVENT_CONTINUE;
+}
diff --git a/proxy/UDPAPIClientTest.h b/proxy/UDPAPIClientTest.h
new file mode 100644
index 00000000..78266d5f
--- /dev/null
+++ b/proxy/UDPAPIClientTest.h
@@ -0,0 +1,28 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "api/include/experimental.h"
+
+void UDPClientTestInit();
+int UDPClient_handle_callbacks(INKCont cont, INKEvent event, void *e);
+//int send_callbacks (INKCont cont, INKEvent event, void *e);
diff --git a/proxy/UDPAPITest.cc b/proxy/UDPAPITest.cc
new file mode 100644
index 00000000..4547b212
--- /dev/null
+++ b/proxy/UDPAPITest.cc
@@ -0,0 +1,131 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "UDPAPITest.h"
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+
+char ACK[] = "I got it.";
+
+FILE *fp;
+
+void
+UDPTestInit()
+{
+  TSCont cont;
+  TSMutex readMutexp;
+  unsigned long ip;
+
+  ip = inet_addr("209.131.48.79");
+  readMutexp = TSMutexCreate();
+  cont = TSContCreate(&handle_callbacks, readMutexp);
+//      INKUDPBind(cont, INADDR_ANY,1813);
+  INKUDPBind(cont, ip, 1813);
+}
+
+
+void
+printN(const char *start, int length)
+{
+  int i;
+  for (i = 0; i < length; i++)
+    fprintf(fp, "%c", *(start + i));
+  fprintf(fp, "\n");
+}
+
+int
+handle_callbacks(TSCont cont, TSEvent event, void *e)
+{
+  INKUDPacketQueue packetQueue;
+  INKUDPPacket packet;
+  TSIOBufferBlock recvBuffBlock;
+  TSIOBufferReader reader;
+  TSIOBuffer iobuffer;
+  INKUDPConn UDPConn;
+  unsigned int ip;
+  int port;
+  int *sizep;
+  int size;
+  char sendBuff[32];
+  const char *buf;
+  int avail, total_len;
+  char recv_buffer[4096];
+
+
+  fp = fopen("UDPServer.log", "a+");
+
+  switch (event) {
+
+  case TS_NET_EVENT_DATAGRAM_OPEN:
+    fprintf(fp, "open event called\n");
+    UDPConn = (INKUDPConn) e;
+    INKUDPRecvFrom(cont, UDPConn);
+    break;
+
+
+  case TS_NET_EVENT_DATAGRAM_READ_READY:
+    fprintf(fp, "read ready event called\n");
+    packetQueue = (INKUDPacketQueue) e;
+    total_len = 0;
+    while ((packet = INKUDPPacketGet(packetQueue)) != NULL) {
+      recvBuffBlock = INKUDPPacketBufferBlockGet(packet);
+      iobuffer = TSIOBufferCreate();
+      reader = TSIOBufferReaderAlloc(iobuffer);
+      TSIOBufferAppend(iobuffer, recvBuffBlock);
+      buf = TSIOBufferBlockReadStart(recvBuffBlock, reader, &avail);
+
+      if (avail > 0) {
+        fprintf(fp, "Received message is\n");
+        printN(buf, avail);
+        fprintf(fp, "message length = %i\n", avail);
+        memcpy((char *) &recv_buffer + total_len, buf, avail);
+        TSIOBufferReaderConsume(reader, avail);
+        total_len += avail;
+      }
+
+
+      ip = INKUDPPacketFromAddressGet(packet);
+      port = INKUDPPacketFromPortGet(packet);
+      fprintf(fp, "port = %d\n", port);
+
+      UDPConn = (INKUDPConn) INKUDPPacketConnGet(packet);
+      INKUDPSendTo(cont, UDPConn, ip, port, ACK, strlen(ACK));
+
+      /* INKqa10255: we'd free the memory  - jinsheng */
+      INKUDPPacketDestroy(packet);
+      TSIOBufferReaderFree(reader);
+      TSIOBufferDestroy(iobuffer);
+    }
+
+    break;
+
+  case TS_NET_EVENT_DATAGRAM_WRITE_COMPLETE:
+    break;
+
+  }
+  fclose(fp);
+  return TS_EVENT_CONTINUE;
+}
diff --git a/proxy/UDPAPITest.h b/proxy/UDPAPITest.h
new file mode 100644
index 00000000..cae6ae6d
--- /dev/null
+++ b/proxy/UDPAPITest.h
@@ -0,0 +1,28 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "api/include/experimental.h"
+
+void UDPTestInit();
+int handle_callbacks(INKCont cont, INKEvent event, void *e);
+//int send_callbacks (INKCont cont, INKEvent event, void *e);
diff --git a/proxy/UnixCompletionUtil.h b/proxy/UnixCompletionUtil.h
new file mode 100644
index 00000000..2a791984
--- /dev/null
+++ b/proxy/UnixCompletionUtil.h
@@ -0,0 +1,104 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _UNIX_COMPLETION_UTIL_H_
+#define _UNIX_COMPLETION_UTIL_H_
+
+// platform specific wrappers for dealing with I/O completion events
+// passed into and back from the I/O core.
+#include "UDPIOEvent.h"
+
+inline Event *
+completionUtil::create()
+{
+  UDPIOEvent *u = UDPIOEventAllocator.alloc();
+  return u;
+};
+inline void
+completionUtil::destroy(Event * e)
+{
+  ink_assert(e != NULL);
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  UDPIOEvent::free(u);
+};
+inline void
+completionUtil::setThread(Event * e, EThread * t)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->ethread = t;
+}
+inline void
+completionUtil::setContinuation(Event * e, Continuation * c)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  *(Action *) u = c;
+}
+inline void *
+completionUtil::getHandle(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getHandle();
+}
+inline void
+completionUtil::setHandle(Event * e, void *handle)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->setHandle(handle);
+}
+inline void
+completionUtil::setInfo(Event * e, int fd, IOBufferBlock * buf, int actual, int errno_)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->setInfo(fd, buf, actual, errno_);
+}
+inline void
+completionUtil::setInfo(Event * e, int fd, struct msghdr *msg, int actual, int errno_)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  u->setInfo(fd, msg, actual, errno_);
+}
+inline int
+completionUtil::getBytesTransferred(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getBytesTransferred();
+}
+inline IOBufferBlock *
+completionUtil::getIOBufferBlock(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getIOBufferBlock();
+}
+inline Continuation *
+completionUtil::getContinuation(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getContinuation();
+}
+inline int
+completionUtil::getError(Event * e)
+{
+  UDPIOEvent *u = (UDPIOEvent *) e;
+  return u->getError();
+}
+#endif
diff --git a/proxy/Update.cc b/proxy/Update.cc
new file mode 100644
index 00000000..d4567ce0
--- /dev/null
+++ b/proxy/Update.cc
@@ -0,0 +1,2658 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "Main.h"
+#include "Update.h"
+#include "ProxyConfig.h"
+#include "StatSystem.h"
+#include "HttpUpdateSM.h"
+#include "HttpDebugNames.h"
+#include "URL.h"
+#include "HdrUtils.h"
+#include <records/I_RecHttp.h>
+#include "I_Layout.h"
+
+RecRawStatBlock *update_rsb;
+
+#define UpdateEstablishStaticConfigInteger(_ix,_n) \
+  REC_EstablishStaticConfigInteger(_ix,_n); \
+
+#define UPDATE_INCREMENT_DYN_STAT(x) \
+        RecIncrRawStat(update_rsb, mutex->thread_holding, (int) x, 1);
+#define UPDATE_DECREMENT_DYN_STAT(x) \
+        RecIncrRawStat(update_rsb, mutex->thread_holding, (int) x, -1);
+#define UPDATE_READ_DYN_STAT(x, C, S) \
+        RecGetRawStatCount(update_rsb, (int) x, &C); \
+        RecGetRawStatSum(update_rsb, (int) x, &S);
+
+#define UPDATE_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(update_rsb, x, 0); \
+	RecSetRawStatCount(update_rsb, x, 0); \
+} while (0);
+
+#define UPDATE_ConfigReadInteger         REC_ConfigReadInteger
+#define UPDATE_ConfigReadString          REC_ConfigReadString
+#define UPDATE_RegisterConfigUpdateFunc  REC_RegisterConfigUpdateFunc
+
+
+
+// Fundamental constants
+
+static const char *const GET_METHOD = "GET ";
+static const char *const HTTP_VERSION = " HTTP/1.0";
+static const char *const REQUEST_TERMINATOR = "\r\n\r\n";
+static const char *const TERMINATOR = "\r\n";
+static const char *const HTML_COMMENT_TAG = "!--";
+static const char *const HTML_COMMENT_END = "-->";
+static const int MAX_LINE_LENGTH = (32 * 1024);
+
+// Fundamental constants initialized by UpdateManager::start()
+
+static int len_GET_METHOD = 0;
+static int len_HTTP_VERSION = 0;
+static int len_REQUEST_TERMINATOR = 0;
+static int len_TERMINATOR = 0;
+
+struct html_tag update_allowable_html_tags[] = {
+  {"a", "href"},
+  {"img", "src"},
+  {"img", "href"},
+  {"body", "background"},
+  {"frame", "src"},
+  {"iframe", "src"},
+  {"fig", "src"},
+  {"overlay", "src"},
+  {"applet", "code"},
+  {"script", "src"},
+  {"embed", "src"},
+  {"bgsound", "src"},
+  {"area", "href"},
+  {"base", "href"},             // special handling
+  {"meta", "content"},          // special handling
+  {NULL, NULL}
+};
+
+struct schemes_descriptor
+{
+  const char *tag;
+  int tag_len;
+};
+
+struct schemes_descriptor proto_schemes[] = {
+  {"cid:", 0},
+  {"clsid:", 0},
+  {"file:", 0},
+  {"finger:", 0},
+  {"ftp:", 0},
+  {"gopher:", 0},
+  {"hdl:", 0},
+  {"http:", 0},
+  {"https:", 0},
+  {"ilu:", 0},
+  {"ior:", 0},
+  {"irc:", 0},
+  {"java:", 0},
+  {"javascript:", 0},
+  {"lifn:", 0},
+  {"mailto:", 0},
+  {"mid:", 0},
+  {"news:", 0},
+  {"path:", 0},
+  {"prospero:", 0},
+  {"rlogin:", 0},
+  {"service:", 0},
+  {"shttp:", 0},
+  {"snews:", 0},
+  {"stanf:", 0},
+  {"telnet:", 0},
+  {"tn3270:", 0},
+  {"wais:", 0},
+  {"whois++:", 0},
+  {NULL, 0}
+};
+
+struct schemes_descriptor supported_proto_schemes[] = {
+  {"http:",},
+  {NULL, 0}
+};
+
+static int global_id = 1;
+
+void
+init_proto_schemes()
+{
+  int n;
+  for (n = 0; proto_schemes[n].tag; ++n) {
+    proto_schemes[n].tag_len = strlen(proto_schemes[n].tag);
+  }
+}
+
+void
+init_supported_proto_schemes()
+{
+  int n;
+  for (n = 0; supported_proto_schemes[n].tag; ++n) {
+    supported_proto_schemes[n].tag_len = strlen(supported_proto_schemes[n].tag);
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Class UpdateConfigParams
+//      Global subsystem configuration parameters
+///////////////////////////////////////////////////////////////////////////////
+
+UpdateConfigParams::UpdateConfigParams():
+_enabled(0), _immediate_update(0), _retry_count(0),
+_retry_interval(0), _concurrent_updates(0), _max_update_state_machines(0), _memory_use_in_mb(0)
+{
+}
+
+UpdateConfigParams::UpdateConfigParams(UpdateConfigParams & p)
+{
+  _enabled = p._enabled;
+  _immediate_update = p._immediate_update;
+  _retry_count = p._retry_count;
+  _retry_interval = p._retry_interval;
+  _concurrent_updates = p._concurrent_updates;
+  _max_update_state_machines = p._max_update_state_machines;
+  _memory_use_in_mb = p._memory_use_in_mb;
+}
+
+UpdateConfigParams::~UpdateConfigParams()
+{
+}
+
+UpdateConfigParams & UpdateConfigParams::operator=(UpdateConfigParams & p)
+{
+  _enabled = p._enabled;
+  _immediate_update = p._immediate_update;
+  _retry_count = p._retry_count;
+  _retry_interval = p._retry_interval;
+  _concurrent_updates = p._concurrent_updates;
+  _max_update_state_machines = p._max_update_state_machines;
+  _memory_use_in_mb = p._memory_use_in_mb;
+  return *this;
+}
+
+int
+UpdateConfigParams::operator==(UpdateConfigParams & p)
+{
+  if (_enabled != p._enabled)
+    return 0;
+  if (_immediate_update != p._immediate_update)
+    return 0;
+  if (_retry_count != p._retry_count)
+    return 0;
+  if (_retry_interval != p._retry_interval)
+    return 0;
+  if (_concurrent_updates != p._concurrent_updates)
+    return 0;
+  if (_max_update_state_machines != p._max_update_state_machines)
+    return 0;
+  if (_memory_use_in_mb != p._memory_use_in_mb)
+    return 0;
+  return 1;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Class UpdateEntry
+//      Per update object descriptor
+/////////////////////////////////////////////////////////////////////////////
+
+UpdateEntry::UpdateEntry():_group_link(0), _hash_link(0), _id(0), _url(0),
+_URLhandle(), _terminal_url(0),
+_request_headers(0), _num_request_headers(0),
+_http_hdr(0),
+_offset_hour(0), _interval(0), _max_depth(0), _start_time(0), _expired(0), _scheme_index(-1), _update_event_status(0)
+{
+  http_parser_init(&_http_parser);
+}
+
+UpdateEntry::~UpdateEntry()
+{
+  ats_free(_url);
+  _url = NULL;
+
+  if (_URLhandle.valid()) {
+    _URLhandle.destroy();
+  }
+
+  ats_free(_request_headers);
+  _request_headers = NULL;
+
+  // INKqa12891: _http_hdr can be NULL
+  if (_http_hdr && _http_hdr->valid()) {
+    _http_hdr->destroy();
+    delete _http_hdr;
+    _http_hdr = NULL;
+  }
+  _indirect_list = NULL;
+}
+
+void
+UpdateEntry::Init(int derived_url)
+{
+  _id = ink_atomic_increment(&global_id, 1);
+  if (derived_url) {
+    return;
+  }
+  ComputeScheduleTime();
+
+  int scheme_len;
+  const char *scheme = _URLhandle.scheme_get(&scheme_len);
+  if (scheme != URL_SCHEME_HTTP) {
+    // Depth is only valid for scheme "http"
+    _max_depth = 0;
+  }
+
+}
+
+int
+UpdateEntry::ValidURL(char *s, char *e)
+{
+  // Note: string 's' is null terminated.
+
+  const char *url_start = s;
+  char *url_end = e;
+  int err;
+
+  _URLhandle.create(NULL);
+  err = _URLhandle.parse(&url_start, url_end);
+  if (err >= 0) {
+    _url = ats_strdup(s);
+    return 0;                   // Valid URL
+  } else {
+    _URLhandle.destroy();
+    return 1;                   // Invalid URL
+  }
+  return 0;
+}
+
+int
+UpdateEntry::ValidHeaders(char *s)
+{
+  // Note: string 's' is null terminated.
+
+  enum
+  {
+    FIND_START_OF_HEADER_NAME = 1,
+    SCAN_FOR_HEADER_NAME,
+    SCAN_FOR_END_OF_HEADER_VALUE
+  };
+
+  char *p = s;
+  char *t;
+  int bad_header = 0;
+  int end_of_headers = 0;
+  int scan_state = FIND_START_OF_HEADER_NAME;
+
+  while (*p) {
+    switch (scan_state) {
+    case FIND_START_OF_HEADER_NAME:
+      {
+        if (!ValidHeaderNameChar(*p)) {
+          bad_header = 1;
+          break;
+        } else {
+          scan_state = SCAN_FOR_HEADER_NAME;
+          break;
+        }
+      }
+    case SCAN_FOR_HEADER_NAME:
+      {
+        if (!ValidHeaderNameChar(*p)) {
+          if (*p == ':') {
+            scan_state = SCAN_FOR_END_OF_HEADER_VALUE;
+            break;
+          } else {
+            bad_header = 1;
+            break;
+          }
+        } else {
+          // Get next char
+          break;
+        }
+      }
+    case SCAN_FOR_END_OF_HEADER_VALUE:
+      {
+        t = strchr(p, '\r');
+        if (t) {
+          if (*(t + 1) == '\n') {
+            p = t + 1;
+            ++_num_request_headers;
+            scan_state = FIND_START_OF_HEADER_NAME;
+            break;
+          } else {
+            bad_header = 1;
+            break;
+          }
+        } else {
+          t = strchr(p, 0);
+          if (t) {
+            ++_num_request_headers;
+            end_of_headers = 1;
+          } else {
+            bad_header = 1;
+          }
+          break;
+        }
+      }
+    }                           // End of switch
+
+    if (bad_header) {
+      if (_num_request_headers) {
+        return 1;               // Fail; Bad header with > 1 valid headers
+      } else {
+        if (p == s) {
+          return 0;             // OK; user specified no headers
+        } else {
+          return 1;             // Fail; first header is invalid
+        }
+      }
+    } else {
+      if (end_of_headers) {
+        break;
+      } else {
+        ++p;
+      }
+    }
+  }
+
+  // At least 1 valid header exists
+
+  _request_headers = ats_strdup(s);
+  return 0;                     // OK; > 1 valid headers
+}
+
+int
+UpdateEntry::BuildHttpRequest()
+{
+  // Given the HTTP request and associated headers,
+  // transform the data into a HTTPHdr object.
+
+  char request[MAX_LINE_LENGTH];
+  int request_size;
+
+  request_size = len_GET_METHOD + strlen(_url) +
+    len_HTTP_VERSION + (_request_headers ? len_TERMINATOR + strlen(_request_headers) : 0) + len_REQUEST_TERMINATOR + 1;
+  if (request_size > MAX_LINE_LENGTH) {
+    return 1;
+  }
+  if (_request_headers) {
+    snprintf(request, sizeof(request), "%s%s%s%s%s%s", GET_METHOD, _url,
+             HTTP_VERSION, TERMINATOR, _request_headers, REQUEST_TERMINATOR);
+  } else {
+    snprintf(request, sizeof(request), "%s%s%s%s", GET_METHOD, _url, HTTP_VERSION, REQUEST_TERMINATOR);
+  }
+  _http_hdr = new HTTPHdr;
+  http_parser_init(&_http_parser);
+  _http_hdr->create(HTTP_TYPE_REQUEST);
+  int err;
+  const char *start = request;
+  const char *end = start + request_size - 1;
+
+  while (start < end) {
+    err = _http_hdr->parse_req(&_http_parser, &start, end, false);
+    if (err != PARSE_CONT) {
+      break;
+    }
+    end = start + strlen(start);
+  }
+  http_parser_clear(&_http_parser);
+  return 0;
+}
+
+int
+UpdateEntry::ValidHeaderNameChar(char c)
+{
+  if ((c > 31) && (c < 127)) {
+    if (ValidSeparatorChar(c)) {
+      return 0;                 // Invalid
+    } else {
+      return 1;                 // Valid
+    }
+  } else {
+    return 0;                   // Invalid
+  }
+}
+
+int
+UpdateEntry::ValidSeparatorChar(char c)
+{
+  switch (c) {
+  case '(':
+  case ')':
+  case '<':
+  case '>':
+  case '@':
+  case ',':
+  case ';':
+  case ':':
+  case '\\':
+  case '"':
+  case '/':
+  case '[':
+  case ']':
+  case '?':
+  case '=':
+  case '{':
+  case '}':
+  case ' ':
+  case '\t':
+    return 1;                   // Valid separator char
+  default:
+    return 0;
+  }
+}
+
+int
+UpdateEntry::ValidHour(char *s)
+{
+  // Note: string 's' is null terminated.
+
+  _offset_hour = atoi(s);
+  if ((_offset_hour >= MIN_OFFSET_HOUR) && (_offset_hour <= MAX_OFFSET_HOUR)) {
+    return 0;                   // Valid data
+  } else {
+    return 1;                   // Invalid data
+  }
+}
+
+int
+UpdateEntry::ValidInterval(char *s)
+{
+  // Note: string 's' is null terminated.
+
+  _interval = atoi(s);
+  if ((_interval >= MIN_INTERVAL) && (_interval <= MAX_INTERVAL)) {
+    return 0;                   // Valid data
+  } else {
+    return 1;                   // Invalid data
+  }
+  return 0;
+}
+
+int
+UpdateEntry::ValidDepth(char *s)
+{
+  // Note: string 's' is null terminated.
+
+  _max_depth = atoi(s);
+
+  if ((_max_depth >= MIN_DEPTH) && (_max_depth <= MAX_DEPTH)) {
+    return 0;                   // Valid data
+  } else {
+    return 1;                   // Invalid data
+  }
+  return 0;
+}
+
+void
+UpdateEntry::SetTerminalStatus(int term_url)
+{
+  _terminal_url = term_url;
+}
+
+int
+UpdateEntry::TerminalURL()
+{
+  return _terminal_url;
+}
+
+
+void
+UpdateEntry::ComputeScheduleTime()
+{
+  ink_hrtime ht;
+  time_t cur_time;
+  struct tm cur_tm;
+
+  if (_expired) {
+    _expired = 0;
+  } else {
+    if (_start_time) {
+      return;
+    }
+  }
+
+  ht = ink_get_based_hrtime();
+  cur_time = ht / HRTIME_SECOND;
+
+  if (!_start_time) {
+    time_t zero_hour; // absolute time of offset hour.
+
+    // Get the current time in a TM struct so we can
+    // zero out the minute and second.
+    ink_localtime_r(&cur_time, &cur_tm);
+    cur_tm.tm_hour = _offset_hour;
+    cur_tm.tm_min = 0;
+    cur_tm.tm_sec = 0;
+    // Now we can find out when the offset hour is today.
+    zero_hour = convert_tm(&cur_tm);
+    // If it's in the future, back up a day and use that as the base.
+    if (zero_hour > cur_time) zero_hour -= 24 * SECONDS_PER_HOUR;
+    _start_time = cur_time + (_interval - ((cur_time - zero_hour) % _interval));
+  } else {
+    // Compute next start time
+    _start_time += _interval;
+  }
+}
+
+int
+UpdateEntry::ScheduleNow(time_t cur_time)
+{
+  if (cur_time >= _start_time) {
+    _expired = 1;
+    return 1;
+  } else {
+    return 0;
+  }
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Class UpdateConfigList
+//      Container for UpdateEntry objects
+/////////////////////////////////////////////////////////////////////////////
+UpdateConfigList::UpdateConfigList():_entry_q_elements(0), _pending_q_elements(0), _hash_table(0)
+{
+}
+
+UpdateConfigList::~UpdateConfigList()
+{
+  if (_hash_table) {
+    delete[]_hash_table;
+    _hash_table = NULL;
+  }
+}
+
+void
+UpdateConfigList::Add(UpdateEntry * e)
+{
+  _entry_q_elements++;
+  _entry_q.enqueue(e);
+}
+
+int
+UpdateConfigList::HashAdd(UpdateEntry * e)
+{
+  uint64_t folded64 = e->_url_md5.fold();
+  ink_assert(folded64);
+  int32_t index = folded64 % HASH_TABLE_SIZE;
+
+  if (!_hash_table) {
+    // One time initialization
+
+    _hash_table = new UpdateEntry *[HASH_TABLE_SIZE];
+    memset((char *) _hash_table, 0, (sizeof(UpdateEntry *) * HASH_TABLE_SIZE));
+  }
+  // Add to hash table only if unique
+
+  UpdateEntry *he = _hash_table[index];
+  UpdateEntry **last_link = &_hash_table[index];
+
+  while (he) {
+    if (e->_url_md5 == he->_url_md5) {
+      return 1;                 // duplicate detected
+    } else {
+      last_link = &he->_hash_link;
+      he = he->_hash_link;
+    }
+  }
+
+  // Entry is unique, add to hash list
+
+  e->_hash_link = *last_link;
+  *last_link = e;
+
+  // Add to entry queue
+
+  Add(e);
+
+  return 0;                     // Entry added
+}
+
+UpdateEntry *
+UpdateConfigList::Remove()
+{
+  UpdateEntry *e = _entry_q.dequeue();
+  if (e) {
+    _entry_q_elements--;
+  }
+  return e;
+}
+
+void
+UpdateConfigList::AddPending(UpdateEntry * e)
+{
+  _pending_q_elements++;
+  _pending_q.enqueue(e);
+}
+
+UpdateEntry *
+UpdateConfigList::RemovePending()
+{
+  UpdateEntry *e = _pending_q.dequeue();
+  if (e) {
+    _pending_q_elements--;
+  }
+  return e;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Class UpdateManager
+//      External interface to Update subsystem
+/////////////////////////////////////////////////////////////////////////////
+
+UpdateManager::UpdateManager():_CM(0), _SCH(0)
+{
+}
+
+UpdateManager::~UpdateManager()
+{
+}
+
+int
+UpdateManager::start()
+{
+  // Initialize fundamental constants
+
+  len_GET_METHOD = strlen(GET_METHOD);
+  len_HTTP_VERSION = strlen(HTTP_VERSION);
+  len_REQUEST_TERMINATOR = strlen(REQUEST_TERMINATOR);
+  len_TERMINATOR = strlen(TERMINATOR);
+  init_proto_schemes();
+  init_supported_proto_schemes();
+
+  _CM = new UpdateConfigManager;
+  _CM->init();
+
+  _SCH = new UpdateScheduler(_CM);
+  _SCH->Init();
+
+  return 0;
+}
+
+UpdateManager updateManager;
+
+typedef int (UpdateConfigManager::*UpdateConfigManagerContHandler) (int, void *);
+/////////////////////////////////////////////////////////////////////////////
+// Class UpdateConfigManager
+//      Handle Update subsystem global configuration and URL list updates
+/////////////////////////////////////////////////////////////////////////////
+UpdateConfigManager::UpdateConfigManager()
+:Continuation(new_ProxyMutex()), _periodic_event(0), _filename(0)
+{
+  SET_HANDLER((UpdateConfigManagerContHandler)
+              & UpdateConfigManager::ProcessUpdate);
+}
+
+UpdateConfigManager::~UpdateConfigManager()
+{
+}
+
+int
+UpdateConfigManager::init()
+{
+  update_rsb = RecAllocateRawStatBlock((int) update_stat_count);
+
+  _CP_actual = new UpdateConfigParams;
+
+  // Setup update handlers for each global configuration parameter
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_enabled, "proxy.config.update.enabled");
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_immediate_update, "proxy.config.update.force");
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_retry_count, "proxy.config.update.retry_count");
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_retry_interval, "proxy.config.update.retry_interval");
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_concurrent_updates, "proxy.config.update.concurrent_updates");
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_max_update_state_machines,
+                                     "proxy.config.update.max_update_state_machines");
+
+  UpdateEstablishStaticConfigInteger(_CP_actual->_memory_use_in_mb, "proxy.config.update.memory_use_mb");
+
+  // Register Scheduled Update stats
+
+  RecRegisterRawStat(update_rsb, RECT_PROCESS,
+                     "proxy.process.update.successes",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) update_successes_stat, RecRawStatSyncCount);
+  UPDATE_CLEAR_DYN_STAT(update_successes_stat);
+
+  RecRegisterRawStat(update_rsb, RECT_PROCESS,
+                     "proxy.process.update.no_actions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) update_no_actions_stat, RecRawStatSyncCount);
+  UPDATE_CLEAR_DYN_STAT(update_no_actions_stat);
+
+  RecRegisterRawStat(update_rsb, RECT_PROCESS,
+                     "proxy.process.update.fails",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) update_fails_stat, RecRawStatSyncCount);
+  UPDATE_CLEAR_DYN_STAT(update_fails_stat);
+
+  RecRegisterRawStat(update_rsb, RECT_PROCESS,
+                     "proxy.process.update.unknown_status",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) update_unknown_status_stat, RecRawStatSyncCount);
+  UPDATE_CLEAR_DYN_STAT(update_unknown_status_stat);
+
+  RecRegisterRawStat(update_rsb, RECT_PROCESS,
+                     "proxy.process.update.state_machines",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) update_state_machines_stat, RecRawStatSyncCount);
+  UPDATE_CLEAR_DYN_STAT(update_state_machines_stat);
+
+  Debug("update",
+        "Update params: enable %" PRId64" force %" PRId64" rcnt %" PRId64" rint %" PRId64" updates %" PRId64" "
+        "max_sm %" PRId64" mem %" PRId64"",
+        _CP_actual->_enabled, _CP_actual->_immediate_update,
+        _CP_actual->_retry_count, _CP_actual->_retry_interval,
+        _CP_actual->_concurrent_updates, _CP_actual->_max_update_state_machines, _CP_actual->_memory_use_in_mb);
+
+  // Make working and actual global config copies equal
+
+  _CP = new UpdateConfigParams(*_CP_actual);
+
+  // Setup "update.config" update handler
+
+  SetFileName((char *) "update.config");
+  REC_RegisterConfigUpdateFunc("proxy.config.update.update_configuration", URL_list_update_callout, (void *) this);
+
+  // Simulate configuration update to sync working and current databases
+
+  handleEvent(EVENT_IMMEDIATE, (Event *) NULL);
+
+  // Setup periodic to detect global config updates
+
+  _periodic_event = eventProcessor.schedule_every(this, HRTIME_SECONDS(10));
+
+  return 0;
+}
+
+int
+UpdateConfigManager::GetConfigParams(Ptr<UpdateConfigParams> *P)
+{
+  MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+  if (!lock) {
+    return 0;                   // Try again later
+  } else {
+    *P = _CP;
+    return 1;                   // Success
+  }
+}
+
+int
+UpdateConfigManager::GetConfigList(Ptr<UpdateConfigList> *L)
+{
+  MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+  if (!lock) {
+    return 0;                   // Try again later
+  } else {
+    *L = _CL;
+    return 1;                   // Success
+  }
+}
+
+int
+UpdateConfigManager::URL_list_update_callout(const char */* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                                             RecData data, void *cookie)
+{
+  UpdateConfigManager *cm = (UpdateConfigManager *) cookie;
+  cm->SetFileName((char *) data.rec_string);
+
+
+  // URL update may block in file i/o.
+  // Reschedule on ET_CACHE thread.
+
+  eventProcessor.schedule_imm(cm, ET_CACHE);
+
+  return 0;
+}
+
+int
+UpdateConfigManager::ProcessUpdate(int event, Event * e)
+{
+  if (event == EVENT_IMMEDIATE) {
+    ////////////////////////////////////////////////////////////////////
+    // EVENT_IMMEDIATE -- URL list update
+    ////////////////////////////////////////////////////////////////////
+
+    UpdateConfigList *l = NULL;
+
+    l = BuildUpdateList();
+    if (l) {
+      _CL = l;
+    }
+    return EVENT_DONE;
+  }
+
+  if (event == EVENT_INTERVAL) {
+    ////////////////////////////////////////////////////////////////////
+    // EVENT_INTERVAL  -- Global configuration update check
+    ////////////////////////////////////////////////////////////////////
+
+    UpdateConfigParams *p = new UpdateConfigParams(*_CP_actual);
+
+    if (!(*_CP == *p)) {
+      _CP = p;
+      Debug("update", "enable %" PRId64" force %" PRId64" rcnt %" PRId64" rint %" PRId64" updates %" PRId64" state machines %" PRId64" mem %" PRId64"",
+            p->_enabled, p->_immediate_update, p->_retry_count,
+            p->_retry_interval, p->_concurrent_updates, p->_max_update_state_machines, p->_memory_use_in_mb);
+    } else {
+      delete p;
+    }
+    return EVENT_DONE;
+  }
+  // Unknown event, ignore it.
+
+  Debug("update", "ProcessUpdate: Unknown event %d %p", event, e);
+  return EVENT_DONE;
+}
+
+UpdateConfigList *
+UpdateConfigManager::BuildUpdateList()
+{
+  // Build pathname to "update.config" and open file
+  xptr<char> config_path;
+
+  if (_filename) {
+    config_path = Layout::get()->relative_to(Layout::get()->sysconfdir, _filename);
+  } else {
+    return (UpdateConfigList *) NULL;
+  }
+
+  int fd = open(config_path, O_RDONLY);
+  if (fd < 0) {
+    Warning("read update.config, open failed");
+    SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, open failed");
+    return (UpdateConfigList *) NULL;
+  }
+  return ParseConfigFile(fd);
+}
+
+int
+UpdateConfigManager::GetDataLine(int fd, int bufsize, char *buf, int field_delimiters, int delimiter)
+{
+  char *line = buf;
+  int linesize = bufsize;
+  int bytes_read = 0;
+  int rlen;
+
+  while ((rlen = ink_file_fd_readline(fd, linesize, line)) > 0) {
+    ////////////////////////////////////////////////////////////////////
+    // Notes:
+    //      1) ink_file_fd_readline() null terminates returned buffer
+    //      2) Input processing guarantees that the item delimiter '\'
+    //         does not exist in any data field.
+    ////////////////////////////////////////////////////////////////////
+
+    if (0 == bytes_read) {
+      // A comment line, just return.
+      if (*line == '#') return rlen;
+      else if (1 == rlen) continue; // leading blank line, ignore.
+    }
+    bytes_read += rlen;
+
+    // Determine if we have a complete line.
+
+    char *p = buf;
+    int delimiters_found = 0;
+
+    while (*p) {
+      if (*p == delimiter) {
+        delimiters_found++;
+      }
+      p++;
+    }
+    if (delimiters_found == field_delimiters) {
+      // We have a complete line.
+      return bytes_read;
+
+    } else if ((delimiters_found == (field_delimiters - 1))
+               && (*(p - 1) == '\n')) {
+      // End of line not delimited.
+      // Fix it and consider it a complete line.
+
+      *(p - 1) = '\\';
+      return bytes_read;
+    }
+    // Resume read
+    line += rlen;
+    linesize -= rlen;
+  }
+  return 0;
+}
+
+UpdateConfigList *
+UpdateConfigManager::ParseConfigFile(int f)
+{
+  /*
+     "update.config" line syntax:
+     <URL>\<Request Headers>\<Offset Hour>\<Interval>\<Recursion depth>\
+   */
+
+  enum
+  { F_URL, F_HEADERS, F_HOUR, F_INTERVAL, F_DEPTH, F_ITEMS };
+  char *p_start[F_ITEMS];
+  char *p_end[F_ITEMS];
+
+  char line[MAX_LINE_LENGTH];
+  char *p;
+
+  int ln = 0;
+  int i;
+
+  UpdateEntry *e = NULL;
+  UpdateConfigList *ul = new UpdateConfigList;
+
+  while (GetDataLine(f, sizeof(line) - 1, line, F_ITEMS, '\\') > 0) {
+    ++ln;
+    if (*line == '#') {
+      continue;
+    } else {
+      p = line;
+    }
+
+    // Extract fields
+
+    for (i = 0; i < F_ITEMS; ++i) {
+      p_start[i] = p;
+      p_end[i] = strchr(p, '\\');
+      *p_end[i] = 0;            // Null terminate string
+
+      if (p_end[i]) {
+        p = p_end[i] + 1;
+      } else {
+        Warning("read update.config, invalid syntax, line %d", ln);
+        SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, invalid syntax");
+        break;
+      }
+    }
+    if (i < F_ITEMS) {
+      // Syntax error
+      goto abort_processing;
+    }
+    // Validate data fields
+
+    e = new UpdateEntry;
+
+    ////////////////////////////////////
+    // Validate URL
+    ////////////////////////////////////
+    if (e->ValidURL(p_start[F_URL], p_end[F_URL])) {
+      Warning("read update.config, invalid URL field, line %d", ln);
+      SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, invalid URL field");
+      goto abort_processing;
+    }
+    ////////////////////////////////////
+    // Validate headers
+    ////////////////////////////////////
+    if (e->ValidHeaders(p_start[F_HEADERS])) {
+      Warning("read update.config, invalid headers field, line %d", ln);
+      SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, invalid headers field");
+      goto abort_processing;
+    }
+    /////////////////////////////////////////////////////////////
+    // Convert request (URL+Headers) into HTTPHdr format.
+    /////////////////////////////////////////////////////////////
+    if (e->BuildHttpRequest()) {
+      Warning("read update.config, header processing error, line %d", ln);
+      SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, header processing error");
+      goto abort_processing;
+    }
+    ////////////////////////////////////
+    // Validate hour
+    ////////////////////////////////////
+    if (e->ValidHour(p_start[F_HOUR])) {
+      Warning("read update.config, invalid hour field, line %d", ln);
+      SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, invalid hour field");
+      goto abort_processing;
+    }
+    ////////////////////////////////////
+    // Validate interval
+    ////////////////////////////////////
+    if (e->ValidInterval(p_start[F_INTERVAL])) {
+      Warning("read update.config, invalid interval field, line %d", ln);
+      SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, invalid interval field");
+      goto abort_processing;
+    }
+    ////////////////////////////////////
+    // Validate recursion depth
+    ////////////////////////////////////
+    if (e->ValidDepth(p_start[F_DEPTH])) {
+      Warning("read update.config, invalid depth field, line %d", ln);
+      SignalWarning(MGMT_SIGNAL_CONFIG_ERROR, "read update.config, invalid depth field");
+      goto abort_processing;
+    }
+    // Valid entry, add to list
+
+    e->Init();
+    Debug("update",
+          "[%d] [%s] [%s] nhdrs %d hour %d interval %d depth %d",
+          e->_id, e->_url, e->_request_headers, e->_num_request_headers, e->_offset_hour, e->_interval, e->_max_depth);
+    ul->Add(e);
+    e = NULL;
+  }
+
+  // All file entries are valid.
+
+  close(f);
+  return ul;
+
+abort_processing:
+  close(f);
+  if (e) {
+    delete e;
+  }
+  if (ul) {
+    delete ul;
+  }
+  return (UpdateConfigList *) NULL;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Class UpdateScheduler
+//      Handle scheduling of UpdateEntry objects
+/////////////////////////////////////////////////////////////////////////////
+UpdateScheduler::UpdateScheduler(UpdateConfigManager * c)
+:Continuation(new_ProxyMutex()), _periodic_event(0),
+_recursive_update(0), _CM(c), _schedule_event_callbacks(0), _update_state_machines(0), _base_EN(0), _parent_US(0)
+{
+  SET_HANDLER((UpdateSchedulerContHandler)
+              & UpdateScheduler::ScheduleEvent);
+}
+
+UpdateScheduler::~UpdateScheduler()
+{
+}
+
+int
+UpdateScheduler::Init()
+{
+  _recursive_update = 0;
+  _periodic_event = eventProcessor.schedule_every(this, HRTIME_SECONDS(10));
+  return 0;
+}
+
+int
+UpdateScheduler::Init(UpdateScheduler * us, UpdateEntry * ue, Ptr<UpdateConfigParams> p)
+{
+  ink_assert(ue->_indirect_list->Entries());
+
+  _recursive_update = 1;
+  _CP = p;
+  _CL = ue->_indirect_list;
+  _base_EN = ue;
+  _parent_US = us;
+
+  // Schedule entries for update by moving entries to pending queue.
+
+  UpdateEntry *e;
+  while ((e = _CL->Remove())) {
+    _CL->AddPending(e);
+  }
+  _periodic_event = eventProcessor.schedule_every(this, HRTIME_SECONDS(10));
+  return 0;
+}
+
+int
+UpdateScheduler::ScheduleEvent(int event, void *e)
+{
+  UpdateEntry *ue = NULL;
+  int update_complete = 1;
+
+  if (event == EVENT_IMMEDIATE) {
+    //////////////////////////////////////////////////////////////////////
+    // Callback on update completion from Update State Machine
+    //////////////////////////////////////////////////////////////////////
+    ue = (UpdateEntry *) e;
+
+    switch (ue->_update_event_status) {
+    case UPDATE_EVENT_SUCCESS:
+      {
+        Debug("update", "%s update complete, UPDATE_EVENT_SUCCESS id: %d", (_recursive_update ? "(R)" : ""), ue->_id);
+        UPDATE_INCREMENT_DYN_STAT(update_successes_stat);
+
+        if ((ue->_max_depth > 0) && ue->_indirect_list) {
+          if (ue->_indirect_list->Entries()) {
+            //////////////////////////////////////////////////////////
+            // Recursive update case.
+            // At this point, we have a list of URLs which was
+            // recursively derived from the base URL.
+            // Instantiate UpdateScheduler to process this URL list.
+            //////////////////////////////////////////////////////////
+            Debug("update", "Starting UpdateScheduler for id: %d [%s]", ue->_id, ue->_url);
+            UpdateScheduler *us = new UpdateScheduler();
+            us->Init(this, ue, _CP);
+            update_complete = 0;
+
+          } else {
+            ue->_indirect_list = NULL;
+          }
+        }
+        break;
+      }
+    case UPDATE_EVENT_SUCCESS_NOACTION:
+      {
+        Debug("update",
+              "%s update complete, UPDATE_EVENT_SUCCESS_NOACTION id: %d", (_recursive_update ? "(R)" : ""), ue->_id);
+        UPDATE_INCREMENT_DYN_STAT(update_no_actions_stat);
+        break;
+      }
+    case UPDATE_EVENT_FAILED:
+      {
+        Debug("update", "%s update complete, UPDATE_EVENT_FAILED id: %d", (_recursive_update ? "(R)" : ""), ue->_id);
+        UPDATE_INCREMENT_DYN_STAT(update_fails_stat);
+        break;
+      }
+    default:
+      {
+        Debug("update",
+              "%s update complete, unknown status %d, id: %d",
+              (_recursive_update ? "(R)" : ""), ue->_update_event_status, ue->_id);
+        UPDATE_INCREMENT_DYN_STAT(update_unknown_status_stat);
+        break;
+      }
+    }                           // End of switch
+
+    if (update_complete) {
+      if (!_recursive_update) {
+        /////////////////////////////////////////////////////////
+        // Recompute expire time and place entry back on list
+        /////////////////////////////////////////////////////////
+
+        ue->ComputeScheduleTime();
+        _CL->Add(ue);           // Place back on list
+
+      } else {
+        delete ue;
+      }
+      --_update_state_machines;
+      UPDATE_DECREMENT_DYN_STAT(update_state_machines_stat);
+    }
+    ////////////////////////////////////////////////////////////////
+    // Start another update SM if scheduling is allowed
+    // and an entry exists on the pending list.
+    ////////////////////////////////////////////////////////////////
+
+    if (Schedule() < 0) {
+      // Scheduling allowed, but nothing to schedule
+      if (_update_state_machines == 0) {
+        //////////////////////////////////////////////////////////////
+        // No more active updates, deallocate config/entry structures
+        //////////////////////////////////////////////////////////////
+
+        _CP = NULL;
+        _CL = NULL;
+
+        if (_recursive_update) {
+          //
+          // Recursive list update is now complete.
+          // Callback parent UpdateScheduler.
+          //
+          _periodic_event->cancel();
+          _base_EN->_indirect_list = NULL;
+          _base_EN->_update_event_status = UPDATE_EVENT_SUCCESS;
+
+          SET_HANDLER((UpdateSchedulerContHandler)
+                      & UpdateScheduler::ChildExitEventHandler);
+          handleEvent(EVENT_IMMEDIATE, 0);
+        }
+      }
+    }
+    return EVENT_DONE;
+  }
+  //////////////////////////////////////
+  // Periodic event callback
+  //////////////////////////////////////
+  if (event == EVENT_INTERVAL) {
+    ++_schedule_event_callbacks;
+  } else {
+    // Unknown event, ignore it.
+    Debug("update", "UpdateScheduler::ScheduleEvent unknown event %d", event);
+    return EVENT_DONE;
+  }
+
+  if (!_CP && !_CL) {
+    // No updates pending, attempt to schedule any expired updates
+
+    if (!_CM->GetConfigParams(&_CP)) {
+      return EVENT_CONT;        // Missed lock, try at next event
+    }
+    if (!_CM->GetConfigList(&_CL)) {
+      _CP = NULL;
+      return EVENT_CONT;        // Missed lock, try at next event
+    }
+    // Cannot do anything unless we have valid params and list
+
+    if (!_CP || !_CL) {
+      _CP = NULL;
+      _CL = NULL;
+      return EVENT_CONT;        // try at next event
+    }
+    // Determine if the subsystem is enabled
+
+    if (!_CP->IsEnabled()) {
+      _CP = NULL;
+      _CL = NULL;
+      return EVENT_CONT;        // try at next event
+    }
+
+  } else {
+    ///////////////////////////////////////////////////////////////////
+    // Updates pending from last schedule event, attempt to restart
+    // additional update SM(s).
+    ///////////////////////////////////////////////////////////////////
+
+    Schedule();
+    return EVENT_CONT;
+  }
+  ink_release_assert(!_update_state_machines);
+
+  ///////////////////////////////////////////////////////
+  // Scan entry list and schedule expired updates
+  ///////////////////////////////////////////////////////
+
+  ink_hrtime ht = ink_get_based_hrtime();
+  time_t cur_time = ht / HRTIME_SECOND;
+  Queue<UpdateEntry> no_action_q;
+  int time_expired;
+
+  while ((ue = _CL->Remove())) {
+    time_expired = ue->ScheduleNow(cur_time);
+    if (time_expired || _CP->ImmediateUpdate()) {
+      if (Schedule(ue) > 0) {
+        Debug("update", "%s and started id: %d", time_expired ? "expired" : "force expire", ue->_id);
+      } else {
+        Debug("update", "%s with deferred start id: %d", time_expired ? "expired" : "force expire", ue->_id);
+      }
+
+    } else {
+      no_action_q.enqueue(ue);
+    }
+  }
+
+  // Place no_action_q elements back on list
+
+  while ((ue = no_action_q.dequeue())) {
+    _CL->Add(ue);
+  }
+
+  if (!_update_state_machines && !_CL->_pending_q.head) {
+    // Nothing active or pending.
+    // Drop references to config/param structures.
+
+    _CP = NULL;
+    _CL = NULL;
+  }
+  return EVENT_DONE;
+}
+
+int
+UpdateScheduler::ChildExitEventHandler(int event, Event * /* e ATS_UNUSED */)
+{
+  switch (event) {
+  case EVENT_IMMEDIATE:
+  case EVENT_INTERVAL:
+    {
+      MUTEX_TRY_LOCK(lock, _parent_US->mutex, this_ethread());
+      if (lock) {
+        Debug("update", "Child UpdateScheduler exit id: %d", _base_EN->_id);
+        _parent_US->handleEvent(EVENT_IMMEDIATE, _base_EN);
+        delete this;
+
+      } else {
+        // Lock miss, try again later.
+        eventProcessor.schedule_in(this, HRTIME_MSECONDS(10));
+      }
+      break;
+    }
+  default:
+    {
+      ink_release_assert(!"UpdateScheduler::ChildExitEventHandler invalid event");
+    }                           // End of case
+  }                             // End of switch
+
+  return EVENT_DONE;
+}
+
+int
+UpdateScheduler::Schedule(UpdateEntry * e)
+{
+  // Return > 0,  UpdateEntry scheduled
+  // Return == 0, Scheduling not allowed
+  // Return < 0,  Scheduling allowed, but nothing to schedule
+
+  UpdateSM *usm;
+  UpdateEntry *ue = e;
+  int allow_schedule;
+  RecInt count, sum;
+  int max_concurrent_updates;
+
+  UPDATE_READ_DYN_STAT(update_state_machines_stat, count, sum);
+  if (_CP->ConcurrentUpdates() < _CP->MaxUpdateSM()) {
+    max_concurrent_updates = _CP->ConcurrentUpdates();
+  } else {
+    max_concurrent_updates = _CP->MaxUpdateSM();
+  }
+  allow_schedule = (sum < max_concurrent_updates);
+
+  if (allow_schedule) {
+    ue = ue ? ue : _CL->RemovePending();
+    if (ue) {
+      ++_update_state_machines;
+      UPDATE_INCREMENT_DYN_STAT(update_state_machines_stat);
+      usm = new UpdateSM(this, _CP, ue);
+      usm->Start();
+
+      Debug("update", "%s %s start update id: %d [%s]",
+            (_recursive_update ? "(R)" : ""), (e ? "directed" : "speculative"), ue->_id, ue->_url);
+
+      return 1;                 // UpdateEntry scheduled
+    } else {
+      return -1;                // Scheduling allowed but nothing to schedule
+    }
+
+  } else {
+    if (ue) {
+      _CL->AddPending(ue);
+    }
+    return 0;                   // Scheduling not allowed
+  }
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Class UpdateSM
+//      State machine which handles object update action
+/////////////////////////////////////////////////////////////////////////////
+UpdateSM::UpdateSM(UpdateScheduler * us, Ptr<UpdateConfigParams> p, UpdateEntry * e)
+:Continuation(new_ProxyMutex()), _state(USM_INIT), _return_status(0), _retries(0)
+{
+  SET_HANDLER((UpdateSMContHandler) & UpdateSM::HandleSMEvent);
+  _US = us;
+  _CP = p;
+  _EN = e;
+}
+
+UpdateSM::~UpdateSM()
+{
+  _CP = NULL;                   // drop reference
+}
+
+void
+UpdateSM::Start()
+{
+  eventProcessor.schedule_imm(this, ET_CACHE);
+}
+
+int
+UpdateSM::HandleSMEvent(int event, Event * /* e ATS_UNUSED */)
+{
+  while (1) {
+    switch (_state) {
+    case USM_INIT:
+      {
+        ////////////////////////////////////////////////////////////////////
+        // Cluster considerations.
+        // For non-recursive URL(s), only process it if the cluster
+        // hash returns this node.  Recursive URL(s) are processed by
+        // all nodes in the cluster.
+        ////////////////////////////////////////////////////////////////////
+        if (_EN->_max_depth > 0) {
+          // Recursive URL(s) are processed by all nodes.
+          _state = USM_PROCESS_URL;
+          break;
+        }
+
+        INK_MD5 url_md5;
+
+        Cache::generate_key(&url_md5, &_EN->_URLhandle);
+        ClusterMachine *m = cluster_machine_at_depth(cache_hash(url_md5));
+        if (m) {
+          // URL hashed to remote node, do nothing.
+          _state = USM_EXIT;
+          _EN->_update_event_status = UPDATE_EVENT_SUCCESS_NOACTION;
+          break;
+        } else {
+          // URL hashed to local node, start processing.
+          _state = USM_PROCESS_URL;
+          break;
+        }
+      }
+    case USM_PROCESS_URL:
+      {
+        ///////////////////////////////////
+        // Dispatch to target handler
+        ///////////////////////////////////
+        int n;
+        int scheme_len;
+        const char *scheme;
+        _state = USM_PROCESS_URL_COMPLETION;
+        scheme = _EN->_URLhandle.scheme_get(&scheme_len);
+        for (n = 0; n < N_SCHEMES; ++n) {
+          if (scheme == *scheme_dispatch_table[n].scheme) {
+            _EN->_scheme_index = n;
+            if ((*scheme_dispatch_table[n].func) (this)) {
+              break;            // Error in initiation
+            }
+            return EVENT_CONT;
+          }
+        }
+        // Error in initiation or bad scheme.
+
+        _state = USM_EXIT;
+        _EN->_update_event_status = UPDATE_EVENT_FAILED;
+        break;
+      }
+    case USM_PROCESS_URL_COMPLETION:
+      {
+        ///////////////////////////////////
+        // Await URL update completion
+        ///////////////////////////////////
+        _state = USM_EXIT;
+        _EN->_update_event_status = event;
+        (*scheme_post_dispatch_table[_EN->_scheme_index].func) (this);
+        break;
+      }
+    case USM_EXIT:
+      {
+        /////////////////////////////////////////////
+        // Operation complete
+        /////////////////////////////////////////////
+        if ((_return_status == UPDATE_EVENT_FAILED)
+            && (_retries < _CP->RetryCount())) {
+
+          // Retry operation
+
+          ++_retries;
+          _state = USM_PROCESS_URL;
+          eventProcessor.schedule_in(this, HRTIME_SECONDS(_CP->RetryInterval()), ET_CACHE);
+          return EVENT_DONE;
+
+        } else {
+          MUTEX_TRY_LOCK(lock, _US->mutex, this_ethread());
+          if (lock) {
+            _US->handleEvent(EVENT_IMMEDIATE, (void *) _EN);
+            delete this;
+            return EVENT_DONE;
+
+          } else {
+            // Missed lock, try again later
+            eventProcessor.schedule_in(this, HRTIME_MSECONDS(10), ET_CACHE);
+            return EVENT_CONT;
+          }
+        }
+      }
+    }                           // End of switch
+  }                             // End of while
+
+  return EVENT_CONT;
+}
+
+struct dispatch_entry scheme_dispatch_table[UpdateSM::N_SCHEMES] = {
+  {&URL_SCHEME_HTTP, UpdateSM::http_scheme},
+};
+
+struct dispatch_entry scheme_post_dispatch_table[UpdateSM::N_SCHEMES] = {
+  {&URL_SCHEME_HTTP, UpdateSM::http_scheme_postproc},
+};
+
+int
+UpdateSM::http_scheme(UpdateSM * sm)
+{
+  if (sm->_EN->_max_depth > 0) {
+    ////////////////////////////////////
+    // Recursive Update
+    ////////////////////////////////////
+    Debug("update", "Start recursive HTTP GET id: %d [%s]", sm->_EN->_id, sm->_EN->_url);
+    sm->_EN->_indirect_list = new UpdateConfigList;
+    RecursiveHttpGet *RHttpGet = new RecursiveHttpGet;
+
+    RHttpGet->Init(sm, sm->_EN->_url, sm->_EN->_request_headers,
+                   &sm->_EN->_URLhandle, sm->_EN->_http_hdr,
+                   sm->_EN->_max_depth, sm->_EN->_indirect_list, &update_allowable_html_tags[0]);
+  } else {
+    ////////////////////////////////////
+    // One URL update
+    ////////////////////////////////////
+    Debug("update", "Start HTTP GET id: %d [%s]", sm->_EN->_id, sm->_EN->_url);
+    HttpUpdateSM *current_reader;
+
+    current_reader = HttpUpdateSM::allocate();
+    current_reader->init();
+    // TODO: Do anything with the returned Action* ?
+    current_reader->start_scheduled_update(sm, sm->_EN->_http_hdr);
+  }
+  return 0;
+}
+
+int
+UpdateSM::http_scheme_postproc(UpdateSM * sm)
+{
+  // Map HttpUpdateSM return event code to internal status code
+
+  switch (sm->_EN->_update_event_status) {
+  case UPDATE_EVENT_SUCCESS:
+  case UPDATE_EVENT_FAILED:
+    // Returned only by RecursiveHttpGet
+    sm->_return_status = sm->_EN->_update_event_status;
+    break;
+
+  case HTTP_SCH_UPDATE_EVENT_WRITTEN:
+  case HTTP_SCH_UPDATE_EVENT_UPDATED:
+  case HTTP_SCH_UPDATE_EVENT_DELETED:
+  case HTTP_SCH_UPDATE_EVENT_NOT_CACHED:
+  case HTTP_SCH_UPDATE_EVENT_NO_ACTION:
+    sm->_EN->_update_event_status = UPDATE_EVENT_SUCCESS;
+    sm->_return_status = UPDATE_EVENT_SUCCESS;
+    break;
+
+  case HTTP_SCH_UPDATE_EVENT_ERROR:
+  default:
+    sm->_EN->_update_event_status = UPDATE_EVENT_FAILED;
+    sm->_return_status = UPDATE_EVENT_FAILED;
+    break;
+  }
+  return 0;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// Class RecursiveHttpGet
+//      Generate URL list by recursively traversing non-terminal URL(s)
+//      up to the specified depth.
+/////////////////////////////////////////////////////////////////////////////
+char
+  HtmlParser::default_zero_char = '\0';
+
+RecursiveHttpGet::RecursiveHttpGet()
+:Continuation(new_ProxyMutex()), _id(0), _caller_cont(0),
+_request_headers(0), _http_hdr(0), _recursion_depth(0), _OL(0), _group_link_head(0), _active_child_state_machines(0)
+{
+  SET_HANDLER((RecursiveHttpGetContHandler)
+              & RecursiveHttpGet::RecursiveHttpGetEvent);
+}
+
+RecursiveHttpGet::~RecursiveHttpGet()
+{
+  _CL = NULL;
+}
+
+void
+RecursiveHttpGet::Init(Continuation * cont, char *url, char *request_headers,
+                       URL * url_data, HTTPHdr * http_hdr, int recursion_depth,
+                       Ptr<UpdateConfigList> L, struct html_tag *allowed_html_tags)
+{
+  /////////////////////////////////////////////////////////////////////////
+  // Note: URL and request header data pointers are assumed to be
+  //       valid during the life of this class.
+  /////////////////////////////////////////////////////////////////////////
+  _id = ink_atomic_increment(&global_id, 1);
+  _caller_cont = cont;
+  _request_headers = request_headers;
+  _url_data = url_data;
+  _http_hdr = http_hdr;
+  _recursion_depth = recursion_depth;
+  _CL = L;
+  _OL = ObjectReloadContAllocator.alloc();
+  _OL->Init(this, url, strlen(url), _request_headers, (_request_headers ? strlen(_request_headers) : 0), 1, 1);
+
+  html_parser.Init(url, allowed_html_tags);
+
+  Debug("update", "Start recursive read rid: %d [%s]", _id, html_parser._url);
+}
+
+int
+RecursiveHttpGet::RecursiveHttpGetEvent(int event, Event * d)
+{
+  char *url, *url_end;
+  int status;
+  UpdateEntry *ue;
+  IOBufferReader *r = (IOBufferReader *) d;
+
+  switch (event) {
+  case NET_EVENT_OPEN_FAILED:
+    {
+      Debug("update", "RecursiveHttpGetEvent connect failed id: %d [%s]", _id, html_parser._url);
+      break;
+    }
+  case VC_EVENT_ERROR:
+    {
+      Debug("update", "RecursiveHttpGetEvent connect event error id: %d [%s]", _id, html_parser._url);
+      break;
+    }
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+  case VC_EVENT_EOS:
+    {
+      while ((status = html_parser.ParseHtml(r, &url, &url_end))) {
+        // Validate given URL.
+
+        ue = new UpdateEntry;
+        if (ue->ValidURL(url, url_end + 1 /* Point to null */ )) {
+          delete ue;
+          ue = NULL;
+
+        } else {
+          // Complete remaining UpdateEntry initializations
+
+          ue->_request_headers = ats_strdup(_request_headers);
+          ue->BuildHttpRequest();
+          ue->Init(1);          // Derived URL
+
+          // Discard remote URL(s)
+          int ue_host_len;
+          const char *ue_host = ue->_URLhandle.host_get(&ue_host_len);
+          int url_host_len;
+          const char *url_host = _url_data->host_get(&url_host_len);
+
+          if (ue_host == NULL || url_host == NULL || ptr_len_casecmp(ue_host, ue_host_len, url_host, url_host_len)) {
+            delete ue;
+            ue = NULL;
+            continue;
+          }
+          // I think we're generating the cache key just to get a hash of the URL.
+          // Used to use Cache::generate_key that no longer works with vary_on_user_agent
+          // isn't turned on. ToDo.
+          ue->_URLhandle.MD5_get(&ue->_url_md5);
+
+          if (_CL->HashAdd(ue)) {
+            // Entry already exists
+
+            delete ue;
+            ue = NULL;
+
+          } else {
+            // Entry is unique and has been added to hash table.
+            // Set terminal URL status and add to current
+            // recursion level list.
+
+            ue->SetTerminalStatus(((status < 0) ? 1 : 0));
+            Debug("update", "Recursive find rid: %d id: %d %s\n [%s]",
+                  _id, ue->_id, (ue->TerminalURL()? "T " : ""), ue->_url);
+
+            if (_group_link_head) {
+              ue->_group_link = _group_link_head;
+              _group_link_head = ue;
+            } else {
+              _group_link_head = ue;
+              ue->_group_link = NULL;
+            }
+          }
+        }
+      }
+      ink_release_assert(r->read_avail() == 0);
+
+      if ((event == VC_EVENT_READ_COMPLETE)
+          || (event == VC_EVENT_EOS)) {
+        break;
+
+      } else {
+        return EVENT_CONT;
+      }
+    }
+  case UPDATE_EVENT_SUCCESS:
+  case UPDATE_EVENT_FAILED:
+    {
+      // Child state machine completed.
+
+      ink_release_assert(_active_child_state_machines > 0);
+      _active_child_state_machines--;
+      break;
+    }
+  default:
+    {
+      ink_release_assert(!"RecursiveHttpGetEvent invalid event");
+      return EVENT_DONE;
+
+    }                           // End of case
+  }                             // End of switch
+
+  if (_group_link_head) {
+    // At this point, we have a list of valid terminal
+    // and non-terminal URL(s).
+    // Sequentially initiate the read on the non-terminal URL(s).
+
+    while (_group_link_head) {
+      ue = _group_link_head;
+      _group_link_head = ue->_group_link;
+
+      if (!ue->TerminalURL()) {
+        if (_recursion_depth <= 1) {
+          continue;
+        }
+
+        Debug("update", "(R) start non-terminal HTTP GET rid: %d id: %d [%s]", _id, ue->_id, ue->_url);
+
+        _active_child_state_machines++;
+        RecursiveHttpGet *RHttpGet = new RecursiveHttpGet();
+        RHttpGet->Init(this, ue->_url, _request_headers,
+                       _url_data, _http_hdr, (_recursion_depth - 1), _CL, &update_allowable_html_tags[0]);
+        return EVENT_CONT;
+
+      }
+    }
+  }
+  // All child state machines have completed, tell our parent
+  // and delete ourself.
+
+  SET_HANDLER((RecursiveHttpGetContHandler)
+              & RecursiveHttpGet::ExitEventHandler);
+  handleEvent(EVENT_IMMEDIATE, 0);
+  return EVENT_DONE;
+}
+
+int
+RecursiveHttpGet::ExitEventHandler(int event, Event * /* e ATS_UNUSED */)
+{
+  switch (event) {
+  case EVENT_IMMEDIATE:
+  case EVENT_INTERVAL:
+    {
+      MUTEX_TRY_LOCK(lock, _caller_cont->mutex, this_ethread());
+      if (lock) {
+        Debug("update", "Exiting recursive read rid: %d [%s]", _id, html_parser._url);
+        _caller_cont->handleEvent(UPDATE_EVENT_SUCCESS, 0);
+        delete this;
+
+      } else {
+        // Lock miss, try again later.
+        eventProcessor.schedule_in(this, HRTIME_MSECONDS(10));
+      }
+      break;
+    }
+  default:
+    {
+      ink_release_assert(!"RecursiveHttpGet::ExitEventHandler invalid event");
+    }                           // End of case
+  }                             // End of switch
+
+  return EVENT_DONE;
+}
+
+int
+HtmlParser::ParseHtml(IOBufferReader * r, char **url, char **url_end)
+{
+  int status;
+  while (1) {
+    if ((status = ScanHtmlForURL(r, url, url_end))) {
+      status = ConstructURL(url, url_end);
+      if (status)
+        return status;
+    } else {
+      return 0;                 // No more bytes
+    }
+  }
+}
+
+int
+HtmlParser::ScanHtmlForURL(IOBufferReader * r, char **url, char **url_end)
+{
+  unsigned char c;
+  int n = 0;
+
+  while (1) {
+    switch (_scan_state) {
+    case SCAN_INIT:
+      {
+        _tag.clear();
+
+        _attr.clear();
+        _attr_value.clear();
+        _attr_value_hash_char_index = -1;
+        _attr_value_quoted = 0;
+        _attr_matched = false;
+
+        _scan_state = SCAN_START;
+        n = -1;
+        break;
+      }
+    case SCAN_START:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (c == '<') {
+            _scan_state = FIND_TAG_START;
+            break;
+          }
+        }
+        break;
+      }
+    case FIND_TAG_START:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (!isspace(c)) {
+            if (c == '>') {
+              ////////////////////////////////////////////////////
+              // '< >' with >= 0 embedded spaces, ignore it.
+              ////////////////////////////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else {
+              _tag(_tag.length()) = c;
+              _scan_state = COPY_TAG;
+              break;
+            }
+          }
+        }
+        break;
+      }
+    case COPY_TAG:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (!isspace(c)) {
+            if (c == '>') {
+              /////////////////////////////
+              // <tag>, ignore it
+              /////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else if (c == '=') {
+              ///////////////////////////////
+              // <tag=something>, ignore it
+              ///////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else {
+              if (_tag.length() < MAX_TAG_NAME_LENGTH) {
+                _tag(_tag.length()) = c;
+
+              } else {
+                ///////////////////////////////////
+                // Tag name to long, ignore it
+                ///////////////////////////////////
+                _scan_state = SCAN_INIT;
+                break;
+              }
+            }
+
+          } else {
+            _tag(_tag.length()) = 0;
+            if (strcmp(_tag, HTML_COMMENT_TAG) == 0) {
+              _scan_state = IGNORE_COMMENT_START;
+            } else {
+              _scan_state = FIND_ATTR_START;
+            }
+            break;
+          }
+        }
+        break;
+      }
+    case IGNORE_COMMENT_START:
+      {
+        _comment_end_ptr = (char *) HTML_COMMENT_END;
+        _scan_state = IGNORE_COMMENT;
+        break;
+      }
+    case IGNORE_COMMENT:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (!isspace(c)) {
+            if (c == *_comment_end_ptr) {
+              _comment_end_ptr++;
+              if (!*_comment_end_ptr) {
+                _scan_state = SCAN_INIT;
+                break;
+              }
+            } else {
+              _comment_end_ptr = (char *) HTML_COMMENT_END;
+            }
+          }
+        }
+        break;
+      }
+    case FIND_ATTR_START:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (!isspace(c)) {
+            if (c == '>') {
+              ////////////////////////////////////////////////
+              // <tag > with >=1 embedded spaces, ignore it
+              ////////////////////////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else if (c == '=') {
+              //////////////////////////////////////////////////////////
+              // <tag =something> with >=1 embedded spaces, ignore it
+              //////////////////////////////////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else {
+              _attr(_attr.length()) = c;
+              _scan_state = COPY_ATTR;
+              break;
+            }
+          }
+        }
+        break;
+      }
+    case COPY_ATTR:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (!isspace(c)) {
+            if (c == '>') {
+              /////////////////////////////
+              // <tag attr>, ignore it
+              /////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else if (c == '=') {
+              ///////////////////////////////
+              // <tag attr=something>
+              ///////////////////////////////
+              _attr(_attr.length()) = 0;
+              _scan_state = FIND_ATTR_VALUE_START;
+              break;
+
+            } else {
+              if (_attr.length() < MAX_ATTR_NAME_LENGTH) {
+                _attr(_attr.length()) = c;
+
+              } else {
+                ///////////////////////////////////
+                // Attr name to long, ignore it
+                ///////////////////////////////////
+                _scan_state = SCAN_INIT;
+                break;
+              }
+            }
+
+          } else {
+            _attr(_attr.length()) = 0;
+            _scan_state = FIND_ATTR_VALUE_DELIMITER;
+            break;
+          }
+        }
+        break;
+      }
+    case FIND_ATTR_VALUE_DELIMITER:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (isspace(c) || (c == '=')) {
+            if (c == '=') {
+              _scan_state = FIND_ATTR_VALUE_START;
+              break;
+            }
+          } else {
+            _scan_state = SCAN_INIT;
+            break;
+          }
+        }
+        break;
+      }
+    case FIND_ATTR_VALUE_START:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (!isspace(c)) {
+            if (c == '>') {
+              /////////////////////////////
+              // <tag attr= >, ignore
+              /////////////////////////////
+              _scan_state = SCAN_INIT;
+              break;
+
+            } else if ((c == '\'') || (c == '\"')) {
+              _attr_value_quoted = c;
+              _scan_state = COPY_ATTR_VALUE;
+              break;
+
+            } else {
+              _attr_value_quoted = 0;
+              _attr_value(_attr_value.length()) = c;
+              _scan_state = COPY_ATTR_VALUE;
+              break;
+            }
+          }
+        }
+        break;
+      }
+    case COPY_ATTR_VALUE:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (_attr_value_quoted) {
+            if (c == _attr_value_quoted) {
+              ///////////////////////////////////////////
+              // We have a complete <tag attr='value'
+              ///////////////////////////////////////////
+              _attr_value(_attr_value.length()) = 0;
+              _scan_state = VALIDATE_ENTRY;
+              break;
+
+            } else if (c == '\n') {
+              _scan_state = TERMINATE_COPY_ATTR_VALUE;
+              break;
+            } else {
+              _attr_value(_attr_value.length()) = c;
+              if (c == '#') {
+                _attr_value_hash_char_index = _attr_value.length() - 1;
+              }
+            }
+
+          } else {
+            if (isspace(c)) {
+              ///////////////////////////////////////////
+              // We have a complete <tag attr=value
+              ///////////////////////////////////////////
+              _attr_value(_attr_value.length()) = 0;
+              _scan_state = VALIDATE_ENTRY;
+              break;
+
+            } else if (c == '>') {
+              /////////////////////////////////////////
+              // We have a complete <tag attr=value>
+              /////////////////////////////////////////
+              _attr_value(_attr_value.length()) = 0;
+              _scan_state = VALIDATE_ENTRY_RESTART;
+              break;
+
+            } else {
+              _attr_value(_attr_value.length()) = c;
+              if (c == '#') {
+                _attr_value_hash_char_index = _attr_value.length() - 1;
+              }
+            }
+          }
+        }
+        break;
+      }
+    case VALIDATE_ENTRY:
+    case VALIDATE_ENTRY_RESTART:
+      {
+        if (_scan_state == VALIDATE_ENTRY) {
+          _scan_state = RESUME_ATTR_VALUE_SCAN;
+        } else {
+          _scan_state = SCAN_INIT;
+        }
+        if (AllowTagAttrValue()) {
+          if (ExtractURL(url, url_end)) {
+            return 1;           // valid URL
+          }
+        }
+        break;                  // resume scan
+      }
+    case RESUME_ATTR_VALUE_SCAN:
+      {
+        _attr.clear();
+        _attr_value.clear();
+        _attr_value_hash_char_index = -1;
+        _attr_value_quoted = 0;
+
+        _scan_state = FIND_ATTR_START;
+        n = -2;
+        break;
+      }
+    case TERMINATE_COPY_ATTR_VALUE:
+      {
+        while ((n = r->read((char *) &c, 1))) {
+          if (c == _attr_value_quoted) {
+            _scan_state = RESUME_ATTR_VALUE_SCAN;
+            break;
+          }
+        }
+        break;
+      }
+    default:
+      {
+        ink_release_assert(!"HtmlParser::ScanHtmlForURL bad state");
+      }
+    }                           // end of switch
+
+    if (n == 0) {
+      return 0;                 // No more data
+    }
+
+  }                             // end of while
+}
+
+int
+HtmlParser::AllowTagAttrValue()
+{
+  struct html_tag *p_tag = allowable_html_tags;
+  struct html_tag *p_attr = allowable_html_attrs;
+
+  if (!_tag || !_attr)
+    return 0;
+
+  while (p_tag->tag && p_tag->attr) {
+    if (!strcasecmp(_tag, p_tag->tag)
+        && !strcasecmp(_attr, p_tag->attr)) {
+      if (p_attr == NULL || p_attr->tag == NULL)
+        return 1;
+      else if (_attr_matched) {
+        return 1;
+      } else {
+        // attributes don't match
+        return 0;
+      }
+    } else {
+      if (p_attr && p_attr->tag && p_attr->attr && _attr_value.length() > 0) {
+        if (!strcasecmp(_attr, p_attr->tag)
+            && !strcasecmp(_attr_value, p_attr->attr)) {
+          _attr_matched = true;
+        }
+      }
+      p_tag++;
+      if (p_attr)
+        p_attr++;
+    }
+  }
+  return 0;
+}
+
+int
+HtmlParser::ValidProtoScheme(char *p)
+{
+  int n;
+  for (n = 0; proto_schemes[n].tag; ++n) {
+    if (!strncasecmp(p, proto_schemes[n].tag, proto_schemes[n].tag_len)) {
+      return 1;
+    }
+  }
+  return 0;
+}
+
+int
+HtmlParser::ValidSupportedProtoScheme(char *p)
+{
+  int n;
+  for (n = 0; supported_proto_schemes[n].tag; ++n) {
+    if (!strncasecmp(p, supported_proto_schemes[n].tag, supported_proto_schemes[n].tag_len)) {
+      return 1;
+    }
+  }
+  return 0;
+}
+
+int
+HtmlParser::ExtractURL(char **url, char **url_end)
+{
+  intptr_t n;
+
+  // '#' considerations
+  if (_attr_value_hash_char_index >= 0) {
+    if (!_attr_value_hash_char_index) {
+      return 0;                 // No URL
+
+    } else {
+      // '#' terminates _attr_value
+      _attr_value.set_length(_attr_value_hash_char_index + 1);
+      _attr_value[_attr_value_hash_char_index] = 0;
+    }
+  }
+
+  if (!strcasecmp(_tag, "base") && !strcasecmp(_attr, "href")) {
+    if (_html_doc_base) {
+      _html_doc_base.clear();
+    }
+    for (n = 0; n < _attr_value.length(); ++n) {
+      _html_doc_base(_html_doc_base.length()) = _attr_value[n];
+    }
+    _html_doc_base(_html_doc_base.length()) = 0;
+    return 0;                   // No URL
+
+  } else if (!strcasecmp(_tag, "meta") && !strcasecmp(_attr, "content")) {
+    /////////////////////////////////////////////////////////////////
+    // General form:
+    //      <META HTTP-EQUIV=Refresh CONTENT="0; URL=index.html">
+    /////////////////////////////////////////////////////////////////
+    if (_attr_value.length()) {
+      // Locate start of URL
+      for (n = 0; n < _attr_value.length(); ++n) {
+        if (!ParseRules::is_digit((unsigned char) _attr_value[n])) {
+          break;
+        }
+      }
+      if ((n < _attr_value.length()) && (((unsigned char) _attr_value[n]) == ';')) {
+
+        for (; n < _attr_value.length(); ++n) {
+          if (!isspace((unsigned char) _attr_value[n])) {
+            break;
+          }
+        }
+        if ((n < _attr_value.length()) && (!strncasecmp(&_attr_value[n], "URL=", 4))) {
+          n += 4;
+          if ((n < _attr_value.length())
+              && ((_attr_value.length() - n) > 1)) {
+            *url = &_attr_value[n];
+            *url_end = &_attr_value[_attr_value.length() - 2];
+            return 1;
+          }
+        }
+      }
+      return 0;                 // No URL
+
+    } else {
+      return 0;                 // No URL
+    }
+  }
+
+  if (_attr_value.length() > 1) {
+    *url = &_attr_value[(intptr_t)0];
+    *url_end = &_attr_value[_attr_value.length() - 2];
+    return 1;
+
+  } else {
+    return 0;                   // No URL
+  }
+}
+
+int
+HtmlParser::ConstructURL(char **url, char **url_end)
+{
+  unsigned char *p_url = (unsigned char *) *url;
+  unsigned char *p_url_end = (unsigned char *) *url_end;
+
+  /////////////////////////////////////////////////////////////////////
+  // Handle the <a href="[spaces]URI"> case by skipping over spaces
+  /////////////////////////////////////////////////////////////////////
+  while (p_url < p_url_end) {
+    if (isspace(*p_url)) {
+      ++p_url;
+    } else {
+      break;
+    }
+  }
+
+  ////////////////////////////////////////////////////
+  // Determine if we have a relative or absolute URI
+  ////////////////////////////////////////////////////
+  int relative_URL = 0;
+  int http_needed = 0;
+  if (ValidProtoScheme((char *) p_url)) {
+    if (!strncasecmp((char *) p_url, "http:", 5)
+        && (strncasecmp((char *) p_url, "http://", 7) != 0)) {
+
+      //////////////////////////////////////////////////////////
+      // Bad relative URI references of the form http:URL.
+      // Skip over the "http:" part.
+      //////////////////////////////////////////////////////////
+      p_url += strlen("http:");
+      if (p_url > p_url_end) {
+        return 0;               // Invalid URL
+      }
+      relative_URL = 1;
+    }
+  } else {
+    relative_URL = 1;
+    // problem found with www.slashdot.com
+    if (strncasecmp((char *) p_url, "//", 2) == 0)
+      http_needed = 1;
+  }
+
+  //////////////////////////////////////////////
+  // Only handle supported protocol schemes
+  //////////////////////////////////////////////
+  if (!relative_URL && !ValidSupportedProtoScheme((char *) p_url)) {
+    return 0;                   // Invalid URL
+  }
+
+  if (relative_URL) {
+    ////////////////////////////////////
+    // Compute document base path
+    ////////////////////////////////////
+    DynArray<char>*base = 0;
+    DynArray<char>*absolute_url = 0;
+
+    if (http_needed) {
+      absolute_url = PrependString("http:", 5, (char *) p_url, (p_url_end - p_url + 2));
+    } else if (_html_doc_base.length()) {
+      ///////////////////////////////////////////////////////////////
+      // Document base specified via <base href="...">
+      ///////////////////////////////////////////////////////////////
+      base = MakeURL(_url, _html_doc_base, _html_doc_base.length(), !ValidProtoScheme(_html_doc_base));
+      absolute_url = MakeURL(*base, (char *) p_url, (p_url_end - p_url + 2), 1);
+    } else {
+      absolute_url = MakeURL(_url, (char *) p_url, (p_url_end - p_url + 2), 1);
+    }
+    _result.clear();
+    _result = *absolute_url;
+    absolute_url->detach();
+
+    // fix INKqa07208; need to reclaim memory
+    delete absolute_url;
+    if (base)
+      delete base;
+
+    *url = &_result[(intptr_t)0];
+    *url_end = &_result[_result.length() - 3];  // -1 (real len)
+    // -1 (skip null)
+    // -1 (zero base)
+  } else {
+    *url = (char *) p_url;
+    *url_end = (char *) p_url_end;
+  }
+
+  //////////////////////////////////////////////////////////////////
+  // Determine if we have a terminal or non-terminal URL.
+  // URL ending with '/', .htm or .html is considered non-terminal.
+  //    Return < 0 ==> Terminal URL
+  //    Return > 0 ==> Non terminal URL
+  //////////////////////////////////////////////////////////////////
+  if (!strncasecmp((char *) (p_url_end - 4), ".html", 5)
+      || !strncasecmp((char *) (p_url_end - 3), ".htm", 4)
+      || !strncasecmp((char *) (p_url_end), "/", 1)) {
+    return 1;                   // Non-terminal URL
+  } else {
+    return -1;                  // Terminal URL
+  }
+}
+
+DynArray<char>*
+HtmlParser::MakeURL(char *url, char *sub, int subsize, int relative_url)
+{
+  int i, n;
+  int skip_slashslash;
+
+  DynArray<char>*result = new DynArray<char>(&default_zero_char, 128);
+
+  if (relative_url) {
+    if (*sub != '/') {
+
+      int url_len = strlen(url);
+
+      // Locate last '/' in url
+      for (i = url_len; i && url[i] != '/'; i--);
+
+      if (i && (url[i] == url[i - 1])) {
+        // http://hostname case with no terminating '/'
+
+        for (n = 0; n < url_len; ++n) {
+          (*result) (result->length()) = url[n];
+        }
+        (*result) (result->length()) = '/';
+
+      } else {
+        for (n = 0; n < (i + 1); ++n) {
+          (*result) (result->length()) = url[n];
+        }
+      }
+
+      for (n = 0; n < subsize; ++n) {
+        (*result) (result->length()) = sub[n];
+      }
+      (*result) (result->length()) = '\0';
+
+    } else {
+      i = 0;
+      do {
+        // Locate leading '/'
+        for (; url[i] && url[i] != '/'; i++);
+
+        if (!url[i]) {
+          break;
+        }
+        // Skip over '<scheme>://'
+        skip_slashslash = ((url[i] == url[i + 1]) && (url[i + 1] == '/'));
+
+        if (skip_slashslash) {
+          i += 2;
+        }
+      } while (skip_slashslash);
+
+      for (n = 0; n < (i - 1); ++n) {
+        (*result) (result->length()) = url[n];
+      }
+
+      if (url[n] != '/') {
+        (*result) (result->length()) = url[n];
+      }
+
+      for (n = 0; n < subsize; ++n) {
+        (*result) (result->length()) = sub[n];
+      }
+      (*result) (result->length()) = '\0';
+    }
+
+  } else {
+    for (n = 0; n < subsize; ++n) {
+      (*result) (result->length()) = sub[n];
+    }
+    (*result) (result->length()) = '\0';
+  }
+  return result;
+}
+
+DynArray<char>*
+HtmlParser::PrependString(const char *pre, int presize, char *sub, int subsize)
+{
+  int n;
+
+  DynArray<char>*result = new DynArray<char>(&default_zero_char, 128);
+
+  for (n = 0; n < presize; ++n) {
+    (*result) (result->length()) = pre[n];
+  }
+  for (n = 0; n < subsize; ++n) {
+    (*result) (result->length()) = sub[n];
+  }
+  (*result) (result->length()) = '\0';
+
+  return result;
+}
+
+///////////////////////////////////////////////////////////////////
+// Class ObjectReloadCont
+//      Background load URL into local cache
+///////////////////////////////////////////////////////////////////
+ClassAllocator<ObjectReloadCont> ObjectReloadContAllocator("ObjectReloadCont");
+
+ObjectReloadCont::ObjectReloadCont():Continuation(0),
+_caller_cont(0), _request_id(0), _send_data(0),
+_receive_data(0), _start_event(0),
+_state(START), _cur_action(0), _netvc(0), _write_vio(0), _read_vio(0), _read_event_callback(0)
+{
+  SET_HANDLER((ObjectReloadContHandler) & ObjectReloadCont::ObjectReloadEvent);
+}
+
+ObjectReloadCont::~ObjectReloadCont()
+{
+}
+
+void
+ObjectReloadCont::Init(Continuation * cont, char *url, int url_len,
+                       char *headers, int headers_len, int http_case, int read_event_callback)
+{
+  int total_len;
+
+  mutex = new_ProxyMutex();
+  _caller_cont = cont;
+  _request_id = ink_atomic_increment(&global_id, 1);
+  _read_event_callback = read_event_callback;
+
+  // Setup send data buffer by prepending the HTTP GET method to the
+  // given NULL terminated URL and terminating with HTTP version
+
+  if (http_case) {
+    if (headers_len) {
+      total_len = len_GET_METHOD + url_len + len_HTTP_VERSION + len_TERMINATOR + headers_len + len_REQUEST_TERMINATOR;
+    } else {
+      total_len = len_GET_METHOD + url_len + len_HTTP_VERSION + len_REQUEST_TERMINATOR;
+    }
+    _send_data = new_MIOBuffer(buffer_size_to_index(total_len + 1));    // allow for NULL
+
+    memcpy(_send_data->end(), GET_METHOD, len_GET_METHOD);
+    memcpy(&(_send_data->end())[len_GET_METHOD], url, url_len);
+    memcpy(&(_send_data->end())[len_GET_METHOD + url_len], HTTP_VERSION, len_HTTP_VERSION);
+
+    if (headers_len) {
+      memcpy(&(_send_data->end())[len_GET_METHOD + url_len + len_HTTP_VERSION], TERMINATOR, len_TERMINATOR);
+      memcpy(&(_send_data->end())[len_GET_METHOD + url_len + len_HTTP_VERSION + len_TERMINATOR], headers, headers_len);
+      memcpy(&(_send_data->end())[len_GET_METHOD + url_len +
+                                  len_HTTP_VERSION + len_TERMINATOR +
+                                  headers_len], REQUEST_TERMINATOR, len_REQUEST_TERMINATOR);
+
+      // Add NULL for Debug URL output
+      (_send_data->end())[len_GET_METHOD + url_len +
+                          len_HTTP_VERSION + len_TERMINATOR + headers_len + len_REQUEST_TERMINATOR] = 0;
+    } else {
+      memcpy(&(_send_data->end())[len_GET_METHOD + url_len +
+                                  len_HTTP_VERSION], REQUEST_TERMINATOR, len_REQUEST_TERMINATOR);
+
+      // Add NULL for Debug URL output
+      (_send_data->end())[len_GET_METHOD + url_len + len_HTTP_VERSION + len_REQUEST_TERMINATOR] = 0;
+    }
+    _send_data->fill(total_len);
+
+  } else {
+    // Unhandled case... TODO: Do we need to actually handle this?
+    ink_assert(false);
+  }
+  handleEvent(EVENT_IMMEDIATE, (void *) NULL);
+}
+
+void
+ObjectReloadCont::free()
+{
+  mutex = 0;
+  if (_send_data) {
+    free_MIOBuffer(_send_data);
+    _send_data = 0;
+  }
+  if (_receive_data) {
+    free_MIOBuffer(_receive_data);
+    _receive_data = 0;
+  }
+}
+
+int
+ObjectReloadCont::ObjectReloadEvent(int event, void *d)
+{
+  switch (_state) {
+  case START:
+    {
+      IpEndpoint target;
+      // Schedule connect to localhost:<proxy port>
+      Debug("update-reload", "Connect start id=%d", _request_id);
+      _state = ObjectReloadCont::ATTEMPT_CONNECT;
+      MUTEX_TRY_LOCK(lock, this->mutex, this_ethread());
+      ink_release_assert(lock);
+      target.setToLoopback(AF_INET);
+      target.port() = htons(HttpProxyPort::findHttp(AF_INET)->m_port);
+      _cur_action = netProcessor.connect_re(this, &target.sa);
+      return EVENT_DONE;
+    }
+  case ATTEMPT_CONNECT:
+    {
+      if (event != NET_EVENT_OPEN) {
+        // Connect error, terminate processing
+        Debug("update-reload", "Connect fail id=%d", _request_id);
+        CallBackUser(event, 0);
+        free();
+        ObjectReloadContAllocator.free(this);
+        return EVENT_DONE;
+      }
+      _netvc = (class NetVConnection *) d;
+
+      // Start URL write
+      Debug("update-reload", "Write start id=%d [%s]", _request_id, _send_data->start());
+      _state = ObjectReloadCont::WRITING_URL;
+      IOBufferReader *r = _send_data->alloc_reader();
+      _write_vio = _netvc->do_io_write(this, r->read_avail(), r);
+      return EVENT_DONE;
+    }
+  case WRITING_URL:
+    {
+      ink_release_assert(_write_vio == (VIO *) d);
+      if (event == VC_EVENT_WRITE_READY) {
+        _write_vio->reenable();
+        return EVENT_DONE;
+      } else if (event == VC_EVENT_WRITE_COMPLETE) {
+        // Write successful, start read
+        Debug("update-reload", "Read start id=%d", _request_id);
+        _state = ObjectReloadCont::READING_DATA;
+        _receive_data = new_MIOBuffer(max_iobuffer_size);
+        _receive_data_reader = _receive_data->alloc_reader();
+        _read_vio = _netvc->do_io_read(this, INT64_MAX, _receive_data);
+        return EVENT_DONE;
+      } else {
+        // Write error, terminate processing
+        Debug("update-reload", "Write fail id=%d", _request_id);
+        _netvc->do_io(VIO::CLOSE);
+        CallBackUser(event, 0);
+        free();
+        ObjectReloadContAllocator.free(this);
+        return EVENT_DONE;
+      }
+    }
+  case READING_DATA:
+    {
+      ink_release_assert(_read_vio == (VIO *) d);
+      switch (event) {
+      case VC_EVENT_READ_READY:
+        {
+          if (_read_event_callback) {
+            _caller_cont->handleEvent(event, _receive_data_reader);
+
+          } else {
+            int64_t read_bytes = _receive_data_reader->read_avail();
+            _receive_data_reader->consume(read_bytes);
+            _read_vio->reenable();
+          }
+          return EVENT_CONT;
+        }
+      case VC_EVENT_READ_COMPLETE:
+      case VC_EVENT_EOS:
+        {
+          if (_read_event_callback) {
+            _caller_cont->handleEvent(event, _receive_data_reader);
+          }
+          // Object injected into local cache
+          Debug("update-reload", "Fill success id=%d", _request_id);
+          break;
+        }
+      default:
+        {
+          Debug("update-reload", "Fill read fail id=%d", _request_id);
+          CallBackUser(event, 0);
+          break;
+        }
+      }                         // End of switch
+
+      _netvc->do_io(VIO::CLOSE);
+      free();
+      ObjectReloadContAllocator.free(this);
+      return EVENT_DONE;
+    }
+  default:
+    {
+      ink_release_assert(!"ObjectReloadEvent invalid state");
+    }
+
+  }                             // End of switch
+  return 0;
+}
+
+int
+ObjectReloadCont::CallBackUser(int event, void *d)
+{
+  _caller_cont->handleEvent(event, d);
+  return 0;
+}
+
+// End of Update.cc
diff --git a/proxy/Update.h b/proxy/Update.h
new file mode 100644
index 00000000..29586748
--- /dev/null
+++ b/proxy/Update.h
@@ -0,0 +1,527 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+/****************************************************************************
+
+  Update.h
+
+
+****************************************************************************/
+
+#include "P_EventSystem.h"
+#include "URL.h"
+#include "HTTP.h"
+
+#ifndef _Update_h_
+#define _Update_h_
+
+/////////////////////////////////////////////////////////
+// Update subsystem specific events
+/////////////////////////////////////////////////////////
+#define UPDATE_EVENT_SUCCESS 		(UPDATE_EVENT_EVENTS_START+0)
+#define UPDATE_EVENT_SUCCESS_NOACTION 	(UPDATE_EVENT_EVENTS_START+1)
+#define UPDATE_EVENT_FAILED		(UPDATE_EVENT_EVENTS_START+2)
+
+#define MAX_UPDATE_EVENT		UPDATE_EVENT_FAILED
+
+#define IS_UPDATE_EVENT(_e) \
+	( ( ((_e) >= UPDATE_EVENT_EVENTS_START) && \
+	    ((_e) <= MAX_UPDATE_EVENT) ) ? 1 : 0 )
+
+extern RecRawStatBlock *update_rsb;
+
+enum
+{
+  update_successes_stat,
+  update_no_actions_stat,
+  update_fails_stat,
+  update_unknown_status_stat,
+  update_state_machines_stat,
+
+  update_stat_count
+};
+
+//////////////////////////////////////////////////////////////////////
+// UpdateConfigParams -- Global subsystem configuration parameters
+//////////////////////////////////////////////////////////////////////
+class UpdateConfigParams:public RefCountObj
+{
+public:
+  UpdateConfigParams();
+  UpdateConfigParams(UpdateConfigParams &);
+  ~UpdateConfigParams();
+  UpdateConfigParams & operator=(UpdateConfigParams &);
+  int operator==(UpdateConfigParams &);
+
+  int IsEnabled()
+  {
+    return _enabled;
+  }
+  int ImmediateUpdate()
+  {
+    return _immediate_update;
+  }
+  int RetryCount()
+  {
+    return _retry_count;
+  }
+  int RetryInterval()
+  {
+    return _retry_interval;
+  }
+  int ConcurrentUpdates()
+  {
+    return _concurrent_updates;
+  }
+  int MaxUpdateSM()
+  {
+    return _max_update_state_machines;
+  }
+  int MaxMemoryUsageMB()
+  {
+    return _memory_use_in_mb;
+  }
+
+public:
+  RecInt _enabled;
+  RecInt _immediate_update;
+  RecInt _retry_count;
+  RecInt _retry_interval;
+  RecInt _concurrent_updates;
+  RecInt _max_update_state_machines;
+  RecInt _memory_use_in_mb;
+};
+
+///////////////////////////////////////////////////
+// UpdateEntry -- Per update object descriptor
+///////////////////////////////////////////////////
+class UpdateConfigList;
+
+class UpdateEntry
+{
+public:
+  UpdateEntry();
+  ~UpdateEntry();
+
+  enum
+  {
+    MIN_OFFSET_HOUR = 0, MAX_OFFSET_HOUR = 23,
+    MIN_INTERVAL = 0, MAX_INTERVAL = 86400,
+    MIN_DEPTH = 0, MAX_DEPTH = 128,
+    SECONDS_PER_HOUR = 3600,
+    SECONDS_PER_MIN = 60
+  };
+
+  void Init(int derived_url = 0);
+  int ValidURL(char *, char *);
+  int ValidHeaders(char *);
+  int BuildHttpRequest();
+  int ValidHeaderNameChar(char);
+  int ValidSeparatorChar(char);
+  int ValidHour(char *);
+  int ValidInterval(char *);
+  int ValidDepth(char *);
+  int TerminalURL();
+  void SetTerminalStatus(int);
+
+  void ComputeScheduleTime();
+  int ScheduleNow(time_t);
+
+public:
+  LINK(UpdateEntry, link);
+  UpdateEntry *_group_link;
+  UpdateEntry *_hash_link;
+
+public:
+  //////////////////////
+  // URL data
+  //////////////////////
+  int _id;
+  char *_url;
+  URL _URLhandle;
+  INK_MD5 _url_md5;
+  int _terminal_url;
+
+  ////////////////////////////
+  // Request header data
+  ////////////////////////////
+  char *_request_headers;
+  int _num_request_headers;
+  HTTPHdr *_http_hdr;
+  HTTPParser _http_parser;
+
+  ///////////////////////////////
+  // Configuration data
+  ///////////////////////////////
+  int _offset_hour;
+  int _interval;
+  int _max_depth;
+
+  //////////////////////////////////
+  // State data
+  //////////////////////////////////
+  time_t _start_time;
+  int _expired;
+
+  int _scheme_index;
+  int _update_event_status;
+
+    Ptr<UpdateConfigList> _indirect_list;
+};
+
+/////////////////////////////////////////////////////////////
+// UpdateConfigList -- Container for UpdateEntry objects
+/////////////////////////////////////////////////////////////
+class UpdateConfigList:public RefCountObj
+{
+public:
+  UpdateConfigList();
+  ~UpdateConfigList();
+  void Add(UpdateEntry *);
+  int HashAdd(UpdateEntry *);
+  UpdateEntry *Remove();
+  void AddPending(UpdateEntry *);
+  UpdateEntry *RemovePending();
+  int Entries()
+  {
+    return _entry_q_elements;
+  }
+  int PendingEntries()
+  {
+    return _pending_q_elements;
+  }
+
+public:
+  enum
+  {
+    HASH_TABLE_SIZE = 4096
+  };
+  int _entry_q_elements;
+  Queue<UpdateEntry> _entry_q;
+  int _pending_q_elements;
+  Queue<UpdateEntry> _pending_q;
+  UpdateEntry **_hash_table;
+};
+
+////////////////////////////////////////////////////////////////
+// UpdateManager -- External interface to Update subsystem
+////////////////////////////////////////////////////////////////
+class UpdateConfigManager;
+class UpdateScheduler;
+
+class UpdateManager
+{
+public:
+  UpdateManager();
+  ~UpdateManager();
+  int start();
+
+private:
+    UpdateConfigManager * _CM;
+  UpdateScheduler *_SCH;
+};
+
+extern UpdateManager updateManager;
+
+//////////////////////////////////////////////////////////////////////////
+// UpdateConfigManager -- Handle Update subsystem global configuration
+//                        and URL list updates
+//////////////////////////////////////////////////////////////////////////
+typedef int (UpdateConfigManager::*UpdateConfigManagerContHandler) (int, void *);
+
+class UpdateConfigManager:public Continuation
+{
+public:
+  UpdateConfigManager();
+  ~UpdateConfigManager();
+  int init();
+  int GetConfigParams(Ptr<UpdateConfigParams> *);
+  int GetConfigList(Ptr<UpdateConfigList> *);
+
+  static int URL_list_update_callout(const char *name, RecDataT data_type, RecData data, void *cookie);
+
+  void SetFileName(char *f)
+  {
+    _filename = f;
+  }
+  char *GetFileName()
+  {
+    return _filename;
+  }
+
+  int ProcessUpdate(int event, Event * e);
+  UpdateConfigList *BuildUpdateList();
+  UpdateConfigList *ParseConfigFile(int);
+  int GetDataLine(int, int, char *, int, int);
+
+private:
+  Event * _periodic_event;
+  char *_filename;
+  Ptr<UpdateConfigParams> _CP;
+  Ptr<UpdateConfigParams> _CP_actual;
+  Ptr<UpdateConfigList> _CL;
+};
+
+////////////////////////////////////////////////////////////////////////
+// UpdateScheduler -- Handle scheduling of UpdateEntry objects
+////////////////////////////////////////////////////////////////////////
+typedef int (UpdateScheduler::*UpdateSchedulerContHandler) (int, void *);
+
+class UpdateScheduler:public Continuation
+{
+public:
+  UpdateScheduler(UpdateConfigManager * cm = NULL);
+  ~UpdateScheduler();
+  int Init();
+  int Init(UpdateScheduler *, UpdateEntry *, Ptr<UpdateConfigParams>);
+
+  int ScheduleEvent(int, void *);
+  int Schedule(UpdateEntry * e = NULL);
+  int ChildExitEventHandler(int, Event *);
+
+private:
+    Event * _periodic_event;
+  int _recursive_update;
+  UpdateConfigManager *_CM;
+    Ptr<UpdateConfigParams> _CP;
+    Ptr<UpdateConfigList> _CL;
+  int _schedule_event_callbacks;
+  int _update_state_machines;
+
+  UpdateEntry *_base_EN;        // Entry from which recursive
+  //   list was derived
+  UpdateScheduler *_parent_US;  // Parent which created us
+};
+
+/////////////////////////////////////////////////////////////////
+// UpdateSM -- State machine which handles object update action
+/////////////////////////////////////////////////////////////////
+class UpdateSM;
+typedef int (UpdateSM::*UpdateSMContHandler) (int, void *);
+
+class UpdateSM:public Continuation
+{
+public:
+  enum state_t
+  {
+    USM_INIT = 1,
+    USM_PROCESS_URL,
+    USM_PROCESS_URL_COMPLETION,
+    USM_EXIT
+  };
+
+  enum
+  {
+    N_SCHEMES = 1
+  };
+
+  static int http_scheme(UpdateSM *);
+  static int http_scheme_postproc(UpdateSM *);
+
+  UpdateSM(UpdateScheduler *, Ptr<UpdateConfigParams>, UpdateEntry *);
+  ~UpdateSM();
+  void Start();
+  int HandleSMEvent(int, Event *);
+
+public:
+  UpdateEntry * _EN;
+
+private:
+  UpdateScheduler * _US;
+  Ptr<UpdateConfigParams> _CP;
+  state_t _state;
+  int _return_status;
+  int _retries;
+};
+
+struct dispatch_entry
+{
+  const char **scheme;
+  int (*func) (UpdateSM *);
+};
+
+extern struct dispatch_entry scheme_dispatch_table[UpdateSM::N_SCHEMES];
+extern struct dispatch_entry scheme_post_dispatch_table[UpdateSM::N_SCHEMES];
+
+struct html_tag
+{
+  const char *tag;
+  const char *attr;
+};
+
+/////////////////////////////////////////////////////////////////////////////
+// RecursiveHttpGet -- Generate URL list by recursively traversing
+//                     non-terminal URL(s) up to the specified depth.
+/////////////////////////////////////////////////////////////////////////////
+class ObjectReloadCont;
+class RecursiveHttpGet;
+
+typedef int (RecursiveHttpGet::*RecursiveHttpGetContHandler) (int, Event *);
+
+class HtmlParser
+{
+  // Parse Html routines
+public:
+  static char default_zero_char;
+
+  enum scan_state_t
+  {
+    SCAN_INIT = 1,
+    SCAN_START,
+    FIND_TAG_START,
+    COPY_TAG,
+    IGNORE_COMMENT_START,
+    IGNORE_COMMENT,
+    FIND_ATTR_START,
+    COPY_ATTR,
+    FIND_ATTR_VALUE_DELIMITER,
+    FIND_ATTR_VALUE_START,
+    COPY_ATTR_VALUE,
+    VALIDATE_ENTRY,
+    VALIDATE_ENTRY_RESTART,
+    RESUME_ATTR_VALUE_SCAN,
+    TERMINATE_COPY_ATTR_VALUE
+  };
+
+  enum
+  {
+    MAX_TAG_NAME_LENGTH = 1024,
+    MAX_ATTR_NAME_LENGTH = 1024
+  };
+
+    HtmlParser()
+  : _attr_matched(false), _url(0), _comment_end_ptr(0), _scan_state(SCAN_INIT),
+    _tag(&default_zero_char, 32), _attr(&default_zero_char, 32),
+    _attr_value(&default_zero_char, 32),
+    _attr_value_hash_char_index(-1), _attr_value_quoted(0),
+    _html_doc_base(&default_zero_char, 128),
+    _result(&default_zero_char, 128), allowable_html_tags(0), allowable_html_attrs(0)
+  { }
+
+   ~HtmlParser()
+  { }
+
+  void Init(char *url, struct html_tag *allowed_html_tags, struct html_tag *allowed_html_attrs = NULL) {
+    _url = url;
+    allowable_html_tags = allowed_html_tags;
+    allowable_html_attrs = allowed_html_attrs;
+    _attr_matched = false;
+  }
+
+  int ParseHtml(IOBufferReader *, char **, char **);
+  int ScanHtmlForURL(IOBufferReader *, char **, char **);
+  int AllowTagAttrValue();
+  int ValidProtoScheme(char *);
+  int ValidSupportedProtoScheme(char *);
+  int ExtractURL(char **, char **);
+  int ConstructURL(char **, char **);
+  DynArray<char>*MakeURL(char *, char *, int, int);
+  DynArray<char>*PrependString(const char *, int, char *, int);
+  bool _attr_matched;
+
+  char *_url;
+  char *_comment_end_ptr;
+  scan_state_t _scan_state;
+  DynArray<char>_tag;
+  DynArray<char>_attr;
+  DynArray<char>_attr_value;
+  intptr_t _attr_value_hash_char_index;      // '#' char loc
+  unsigned char _attr_value_quoted;
+  DynArray<char>_html_doc_base;
+  DynArray<char>_result;
+
+  struct html_tag *allowable_html_tags;
+  struct html_tag *allowable_html_attrs;
+};
+
+class RecursiveHttpGet:public Continuation
+{
+public:
+  RecursiveHttpGet();
+  ~RecursiveHttpGet();
+  void Init(Continuation *, char *, char *, URL *, HTTPHdr *, int,
+            Ptr<UpdateConfigList>, struct html_tag *allowed_html_tags);
+  int RecursiveHttpGetEvent(int, Event *);
+
+  int ExitEventHandler(int, Event *);
+
+public:
+  int _id;
+  Continuation *_caller_cont;
+  char *_request_headers;
+  URL *_url_data;
+  HTTPHdr *_http_hdr;
+  int _recursion_depth;
+    Ptr<UpdateConfigList> _CL;
+  ObjectReloadCont *_OL;
+  UpdateEntry *_group_link_head;
+  int _active_child_state_machines;
+
+  HtmlParser html_parser;
+};
+
+/////////////////////////////////////////////////////////////////////////
+// ObjectReloadCont -- Read given URL object via the local proxy port
+/////////////////////////////////////////////////////////////////////////
+class ObjectReloadCont;
+typedef int (ObjectReloadCont::*ObjectReloadContHandler) (int, void *);
+
+class ObjectReloadCont:public Continuation
+{
+public:
+  ObjectReloadCont();
+  ~ObjectReloadCont();
+  void Init(Continuation *, char *, int, char *, int, int, int);
+  void free();
+  int ObjectReloadEvent(int, void *);
+  int CallBackUser(int, void *);
+
+  enum state_t
+  {
+    START = 1,
+    ATTEMPT_CONNECT,
+    WRITING_URL,
+    READING_DATA
+  };
+
+  Continuation *_caller_cont;
+  int _request_id;
+  MIOBuffer *_send_data;
+  MIOBuffer *_receive_data;
+  IOBufferReader *_receive_data_reader;
+  Event *_start_event;
+  state_t _state;
+  Action *_cur_action;
+  class NetVConnection *_netvc;
+  VIO *_write_vio;
+  VIO *_read_vio;
+  int _read_event_callback;
+
+};
+
+extern ClassAllocator<ObjectReloadCont> ObjectReloadContAllocator;
+
+#endif // _Update_h_
+
+// End of Update.h
diff --git a/proxy/UserNameCacheTest.h b/proxy/UserNameCacheTest.h
new file mode 100644
index 00000000..dabf8e19
--- /dev/null
+++ b/proxy/UserNameCacheTest.h
@@ -0,0 +1,25 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+int UserNameHandleCallbacks(INKCont cont, INKEvent event, void *e);
+void userNameCacheTestInit();
diff --git a/proxy/api/ts/InkAPIPrivateIOCore.h b/proxy/api/ts/InkAPIPrivateIOCore.h
new file mode 100644
index 00000000..fab4b4a4
--- /dev/null
+++ b/proxy/api/ts/InkAPIPrivateIOCore.h
@@ -0,0 +1,238 @@
+/** @file
+
+  Internal SDK stuff
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __INK_API_PRIVATE_IOCORE_H__
+#define __INK_API_PRIVATE_IOCORE_H__
+#include "ts.h"
+#if !defined(__GNUC__)
+#include "I_EventSystem.h"
+#include "I_Cache.h"
+#include "I_Net.h"
+#else
+#include "P_EventSystem.h"
+#include "P_Cache.h"
+#include "P_Net.h"
+#endif
+
+enum INKContInternalMagic_t
+{
+  INKCONT_INTERN_MAGIC_ALIVE = 0x00009631,
+  INKCONT_INTERN_MAGIC_DEAD = 0xDEAD9631
+};
+
+class INKContInternal:public DummyVConnection
+{
+public:
+  INKContInternal();
+  INKContInternal(TSEventFunc funcp, TSMutex mutexp);
+
+  void init(TSEventFunc funcp, TSMutex mutexp);
+  virtual void destroy();
+
+  void handle_event_count(int event);
+  int handle_event(int event, void *edata);
+
+public:
+  void *mdata;
+  TSEventFunc m_event_func;
+  volatile int m_event_count;
+  volatile int m_closed;
+  int m_deletable;
+  int m_deleted;
+  //INKqa07670: Nokia memory leak bug fix
+  INKContInternalMagic_t m_free_magic;
+};
+
+class INKVConnInternal:public INKContInternal
+{
+public:
+  INKVConnInternal();
+  INKVConnInternal(TSEventFunc funcp, TSMutex mutexp);
+
+  void init(TSEventFunc funcp, TSMutex mutexp);
+  virtual void destroy();
+
+  int handle_event(int event, void *edata);
+
+  VIO *do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf);
+
+  VIO *do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner = false);
+
+  void do_io_transform(VConnection *vc);
+
+  void do_io_close(int lerrno = -1);
+
+  void do_io_shutdown(ShutdownHowTo_t howto);
+
+  void reenable(VIO *vio);
+
+  void retry(unsigned int delay);
+
+  bool get_data(int id, void *data);
+  bool set_data(int id, void *data);
+
+public:
+    VIO m_read_vio;
+  VIO m_write_vio;
+  VConnection *m_output_vc;
+};
+
+/****************************************************************
+ *  IMPORTANT - READ ME
+ * Any plugin using the IO Core must enter
+ *   with a held mutex.  SDK 1.0, 1.1 & 2.0 did not
+ *   have this restriction so we need to add a mutex
+ *   to Plugin's Continuation if it trys to use the IOCore
+ * Not only does the plugin have to have a mutex
+ *   before entering the IO Core.  The mutex needs to be held.
+ *   We now take out the mutex on each call to ensure it is
+ *   held for the entire duration of the IOCore call
+ ***************************************************************/
+
+//
+// FORCE_PLUGIN_MUTEX -- define 'UNSAFE_FORCE_MUTEX' if you
+// do *not* want the locking macro to be thread safe.
+// Otherwise, access during 'null-mutex' case will be serialized
+// in a locking manner (too bad for the net threads).
+//
+
+
+#define UNSAFE_FORCE_MUTEX
+
+#ifdef UNSAFE_FORCE_MUTEX
+#define LOCK_MONGO_MUTEX
+#define UNLOCK_MONGO_MUTEX
+#define MUX_WARNING(p) \
+TSDebug ("sdk","(SDK) null mutex detected in critical region (mutex created)"); \
+TSDebug ("sdk","(SDK) please create continuation [%p] with mutex", (p));
+#else
+static ink_mutex big_mux;
+
+#define MUX_WARNING(p) 1
+#define LOCK_MONGO_MUTEX   ink_mutex_acquire (&big_mux)
+#define UNLOCK_MONGO_MUTEX ink_mutex_release (&big_mux)
+#endif
+
+#define FORCE_PLUGIN_MUTEX(_c) \
+  MutexLock ml; \
+  LOCK_MONGO_MUTEX; \
+  if (( (INKContInternal*)_c)->mutex == NULL) { \
+      ( (INKContInternal*)_c)->mutex = new_ProxyMutex(); \
+      UNLOCK_MONGO_MUTEX; \
+      MUX_WARNING(_c); \
+      MUTEX_SET_AND_TAKE_LOCK(ml, ((INKContInternal*)_c)->mutex, this_ethread()); \
+  } else { \
+      UNLOCK_MONGO_MUTEX; \
+      MUTEX_SET_AND_TAKE_LOCK(ml, ((INKContInternal*)_c)->mutex, this_ethread()); \
+  }
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+  TSReturnCode sdk_sanity_check_mutex(TSMutex);
+  TSReturnCode sdk_sanity_check_hostlookup_structure(TSHostLookupResult);
+  TSReturnCode sdk_sanity_check_iocore_structure(void *);
+
+/* ----------------------------------------------------------------------
+ *
+ * Interfaces for Raft project
+ *
+ * ---------------------------------------------------------------------- */
+
+  tsapi TSMutex TSMutexCreateInternal(void);
+  tsapi int TSMutexCheck(TSMutex mutex);
+
+
+/* IOBuffer */
+  tsapi void TSIOBufferReaderCopy(TSIOBufferReader readerp, const void *buf, int64_t length);
+  tsapi int64_t TSIOBufferBlockDataSizeGet(TSIOBufferBlock blockp);
+  tsapi void TSIOBufferBlockDestroy(TSIOBufferBlock blockp);
+  typedef void *INKUDPPacket;
+  typedef void *INKUDPacketQueue;
+  typedef void *INKUDPConn;
+/* ===== UDP Connections ===== */
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi TSAction INKUDPBind(TSCont contp, unsigned int ip, int port);
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi TSAction INKUDPSendTo(TSCont contp, INKUDPConn udp, unsigned int ip, int port, char *buf, int len);
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi TSAction INKUDPRecvFrom(TSCont contp, INKUDPConn udp);
+
+/****************************************************************************
+ *  Return file descriptor.
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi int INKUDPConnFdGet(INKUDPConn udp);
+
+/* ===== UDP Packet ===== */
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi INKUDPPacket INKUDPPacketCreate();
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi TSIOBufferBlock INKUDPPacketBufferBlockGet(INKUDPPacket packet);
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi unsigned int INKUDPPacketFromAddressGet(INKUDPPacket packet);
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi int INKUDPPacketFromPortGet(INKUDPPacket packet);
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi INKUDPConn INKUDPPacketConnGet(INKUDPPacket packet);
+
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi void INKUDPPacketDestroy(INKUDPPacket packet);
+
+/* ===== Packet Queue ===== */
+/****************************************************************************
+ *  contact: OXYGEN
+ ****************************************************************************/
+  tsapi INKUDPPacket INKUDPPacketGet(INKUDPacketQueue queuep);
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+
+#endif                          /* __INK_API_PRIVATE_IOCORE_H__ */
diff --git a/proxy/api/ts/Makefile.am b/proxy/api/ts/Makefile.am
new file mode 100644
index 00000000..5577006e
--- /dev/null
+++ b/proxy/api/ts/Makefile.am
@@ -0,0 +1,27 @@
+# api/ts Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+library_includedir=$(includedir)/ts
+
+library_include_HEADERS = \
+  ts.h \
+  remap.h \
+  experimental.h
+
+noinst_HEADERS = \
+  InkAPIPrivateIOCore.h
diff --git a/proxy/api/ts/Makefile.in b/proxy/api/ts/Makefile.in
new file mode 100644
index 00000000..c557c24c
--- /dev/null
+++ b/proxy/api/ts/Makefile.in
@@ -0,0 +1,816 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
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+# with or without modifications, as long as this notice is preserved.
+
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+
+@SET_MAKE@
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+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
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diff --git a/proxy/api/ts/TsException.h b/proxy/api/ts/TsException.h
new file mode 100644
index 00000000..eff09e74
--- /dev/null
+++ b/proxy/api/ts/TsException.h
@@ -0,0 +1,61 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+# if ! defined(TS_EXCEPTION_HEADER)
+# define TS_EXCEPTION_HEADER
+
+/** @file
+    Apache Traffic Server Exceptions.
+ */
+
+# include <stddef.h>
+# include <unistd.h>
+
+namespace ts {
+  /** Base class for ATS exception.
+      Clients should subclass as appropriate. This is intended to carry
+      pre-allocated text along so that it can be thrown without any
+      addditional memory allocation.
+  */
+  class Exception {
+  public:
+    /// Default constructor.
+    Exception();
+    /// Construct with alternate @a text.
+    Exception(
+      const char* text ///< Alternate text for exception.
+    );
+
+    static char const* const DEFAULT_TEXT;
+  protected:
+    char const* m_text;
+  };
+
+  // ----------------------------------------------------------
+  // Inline implementations.
+
+  inline Exception::Exception() : m_text(DEFAULT_TEXT) { }
+  inline Exception::Exception(char const* text) : m_text(text) { }
+}
+
+# endif // TS_EXCEPTION_HEADER
diff --git a/proxy/api/ts/experimental.h b/proxy/api/ts/experimental.h
new file mode 100644
index 00000000..b5742d75
--- /dev/null
+++ b/proxy/api/ts/experimental.h
@@ -0,0 +1,727 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/* 
+ *   Interfaces in this header file are experimental, undocumented and
+ *   are subject to change even across minor releases of Traffic Server.
+ *   None of the interfaces in this file are committed to be stable
+ *   unless they are migrated to ts/ts.h  If you require stable APIs to
+ *   Traffic Server, DO NOT USE anything in this file.
+ */
+
+#ifndef __TS_API_EXPERIMENTAL_H__
+#define __TS_API_EXPERIMENTAL_H__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+  /* For Extended FetchSM APIs */
+  typedef enum {
+    TS_FETCH_METHOD_NONE,
+    TS_FETCH_METHOD_GET,
+    TS_FETCH_METHOD_POST,
+    TS_FETCH_METHOD_CONNECT,
+    TS_FETCH_METHOD_DELETE,
+    TS_FETCH_METHOD_HEAD,
+    TS_FETCH_METHOD_PURGE,
+    TS_FETCH_METHOD_PUT,
+    TS_FETCH_METHOD_OPTIONS,
+    TS_FETCH_METHOD_TRACE,
+    TS_FETCH_METHOD_LAST
+  } TSFetchMethod;
+
+  typedef enum
+  {
+    TS_FETCH_EVENT_EXT_HEAD_READY = -1,
+    TS_FETCH_EVENT_EXT_HEAD_DONE = -2,
+    TS_FETCH_EVENT_EXT_BODY_READY = -3,
+    TS_FETCH_EVENT_EXT_BODY_DONE = -4,
+  } TSFetchEventExt;
+
+  typedef enum
+  {
+    TS_FETCH_FLAGS_NONE = 0,           // do nothing
+    TS_FETCH_FLAGS_STREAM = 1 << 1,    // enable stream IO
+    TS_FETCH_FLAGS_DECHUNK = 1 << 2,   // dechunk body content
+    TS_FETCH_FLAGS_NEWLOCK = 1 << 3,   // allocate new lock for fetch sm
+  } TSFetchFlags;
+
+  typedef struct tsapi_fetchsm* TSFetchSM;
+
+  /* Forward declaration of in_addr, any user of these APIs should probably 
+     include net/netinet.h or whatever is appropriate on the platform. */
+  struct in_addr;
+
+  /* Cache APIs that are not yet fully supported and/or frozen nor complete. */
+  tsapi TSReturnCode TSCacheBufferInfoGet(TSCacheTxn txnp, uint64_t *length, uint64_t *offset);
+
+  tsapi TSCacheHttpInfo TSCacheHttpInfoCreate();
+  tsapi void TSCacheHttpInfoReqGet(TSCacheHttpInfo infop, TSMBuffer *bufp, TSMLoc *obj);
+  tsapi void TSCacheHttpInfoRespGet(TSCacheHttpInfo infop, TSMBuffer *bufp, TSMLoc *obj);
+  tsapi void TSCacheHttpInfoReqSet(TSCacheHttpInfo infop, TSMBuffer bufp, TSMLoc obj);
+  tsapi void TSCacheHttpInfoRespSet(TSCacheHttpInfo infop, TSMBuffer bufp, TSMLoc obj);
+  tsapi void TSCacheHttpInfoKeySet(TSCacheHttpInfo infop, TSCacheKey key);
+  tsapi void TSCacheHttpInfoSizeSet(TSCacheHttpInfo infop, int64_t size);
+  tsapi int TSCacheHttpInfoVector(TSCacheHttpInfo infop, void *data, int length);
+  tsapi time_t TSCacheHttpInfoReqSentTimeGet(TSCacheHttpInfo infop);
+  tsapi time_t TSCacheHttpInfoRespReceivedTimeGet(TSCacheHttpInfo infop);
+  int64_t TSCacheHttpInfoSizeGet(TSCacheHttpInfo infop);
+
+  /* Do not edit these apis, used internally */
+  tsapi int TSMimeHdrFieldEqual(TSMBuffer bufp, TSMLoc hdr_obj, TSMLoc field1, TSMLoc field2);
+  tsapi TSReturnCode TSHttpTxnHookRegisteredFor(TSHttpTxn txnp, TSHttpHookID id, TSEventFunc funcp);
+
+  /* for Media-IXT mms over http */
+  typedef enum
+    {
+      TS_HTTP_CNTL_GET_LOGGING_MODE,
+      TS_HTTP_CNTL_SET_LOGGING_MODE,
+      TS_HTTP_CNTL_GET_INTERCEPT_RETRY_MODE,
+      TS_HTTP_CNTL_SET_INTERCEPT_RETRY_MODE
+    } TSHttpCntlType;
+
+#define TS_HTTP_CNTL_OFF  (void*) 0
+#define TS_HTTP_CNTL_ON   (void*) 1
+  /* usage:
+     void *onoff = 0;
+     TSHttpTxnCntl(.., TS_HTTP_CNTL_GET_LOGGING_MODE, &onoff);
+     if (onoff == TS_HTTP_CNTL_ON) ....
+  */
+  tsapi TSReturnCode TSHttpTxnCntl(TSHttpTxn txnp, TSHttpCntlType cntl, void *data);
+
+
+  /* Protocols APIs */
+  tsapi void TSVConnCacheHttpInfoSet(TSVConn connp, TSCacheHttpInfo infop);
+
+  /* ICP freshness functions */
+  typedef int (*TSPluginFreshnessCalcFunc) (TSCont contp);
+  tsapi void TSICPFreshnessFuncSet(TSPluginFreshnessCalcFunc funcp);
+
+  tsapi TSReturnCode TSICPCachedReqGet(TSCont contp, TSMBuffer *bufp, TSMLoc *obj);
+  tsapi TSReturnCode TSICPCachedRespGet(TSCont contp, TSMBuffer *bufp, TSMLoc *obj);
+
+
+  /* The rest is from the old "froze" private API include, we should consider
+     moving some of these over to ts/ts.h as well. TODO */
+
+  /****************************************************************************
+   *  Test if cache ready to accept request for a specific type of data
+   ****************************************************************************/
+  tsapi TSReturnCode TSCacheDataTypeReady(TSCacheDataType type, int *is_ready);
+
+  /****************************************************************************
+   *  When reenabling a txn in error, keep the connection open in case
+   *  of keepalive.
+   ****************************************************************************/
+  tsapi void TSHttpTxnClientKeepaliveSet(TSHttpTxn txnp, int set);
+
+  /****************************************************************************
+   *  Allow to set the body of a POST request.
+   ****************************************************************************/
+  tsapi void TSHttpTxnServerRequestBodySet(TSHttpTxn txnp, char *buf, int64_t buflength);
+
+  /* ===== High Resolution Time ===== */
+#define TS_HRTIME_FOREVER  (10*TS_HRTIME_DECADE)
+#define TS_HRTIME_DECADE   (10*TS_HRTIME_YEAR)
+#define TS_HRTIME_YEAR     (365*TS_HRTIME_DAY+TS_HRTIME_DAY/4)
+#define TS_HRTIME_WEEK     (7*TS_HRTIME_DAY)
+#define TS_HRTIME_DAY      (24*TS_HRTIME_HOUR)
+#define TS_HRTIME_HOUR     (60*TS_HRTIME_MINUTE)
+#define TS_HRTIME_MINUTE   (60*TS_HRTIME_SECOND)
+#define TS_HRTIME_SECOND   (1000*TS_HRTIME_MSECOND)
+#define TS_HRTIME_MSECOND  (1000*TS_HRTIME_USECOND)
+#define TS_HRTIME_USECOND  (1000*TS_HRTIME_NSECOND)
+#define TS_HRTIME_NSECOND  (1LL)
+
+#define TS_HRTIME_APPROX_SECONDS(_x) ((_x)>>30)    /*  off by 7.3% */
+#define TS_HRTIME_APPROX_FACTOR      (((float)(1<<30))/(((float)HRTIME_SECOND)))
+
+  /*
+////////////////////////////////////////////////////////////////////
+//
+//	Map from units to ts_hrtime values
+//
+////////////////////////////////////////////////////////////////////
+*/
+#define TS_HRTIME_YEARS(_x)    ((_x)*TS_HRTIME_YEAR)
+#define TS_HRTIME_WEEKS(_x)    ((_x)*TS_HRTIME_WEEK)
+#define TS_HRTIME_DAYS(_x)     ((_x)*TS_HRTIME_DAY)
+#define TS_HRTIME_HOURS(_x)    ((_x)*TS_HRTIME_HOUR)
+#define TS_HRTIME_MINUTES(_x)  ((_x)*TS_HRTIME_MINUTE)
+#define TS_HRTIME_SECONDS(_x)  ((_x)*TS_HRTIME_SECOND)
+#define TS_HRTIME_MSECONDS(_x) ((_x)*TS_HRTIME_MSECOND)
+#define TS_HRTIME_USECONDS(_x) ((_x)*TS_HRTIME_USECOND)
+#define TS_HRTIME_NSECONDS(_x) ((_x)*TS_HRTIME_NSECOND)
+
+  tsapi TSReturnCode TSHttpTxnCachedRespTimeGet(TSHttpTxn txnp, time_t *resp_time);
+
+  /* ===== Cache ===== */
+  tsapi TSReturnCode TSCacheKeyDataTypeSet(TSCacheKey key, TSCacheDataType type);
+
+
+  /* ===== Utility ===== */
+  /****************************************************************************
+   *  Create a random number
+   *  Return random integer between <X> and <Y>
+   ****************************************************************************/
+  tsapi unsigned int TSrandom(void);
+
+  /****************************************************************************
+   *  Create a random double
+   *  Return random double between <X> and <Y>
+   ****************************************************************************/
+  tsapi double TSdrandom(void);
+
+  /****************************************************************************
+   *  Return Hi-resolution current time. (int64_t)
+   ****************************************************************************/
+  tsapi TSHRTime TShrtime(void);
+
+  /* =====  CacheHttpInfo =====  */
+
+  tsapi TSCacheHttpInfo TSCacheHttpInfoCopy(TSCacheHttpInfo infop);
+  tsapi void TSCacheHttpInfoReqGet(TSCacheHttpInfo infop, TSMBuffer *bufp, TSMLoc *offset);
+  tsapi void TSCacheHttpInfoRespGet(TSCacheHttpInfo infop, TSMBuffer *bufp, TSMLoc *offset);
+  tsapi void TSCacheHttpInfoDestroy(TSCacheHttpInfo infop);
+
+
+  /* =====  ICP =====  */
+  tsapi void TSHttpIcpDynamicSet(int value);
+
+  /****************************************************************************
+   *  TSHttpTxnCacheLookupCountGet
+   *  Return: TS_SUCESS/TS_ERROR
+   ****************************************************************************/
+  tsapi TSReturnCode TSHttpTxnCacheLookupCountGet(TSHttpTxn txnp, int *lookup_count);
+  tsapi TSReturnCode TSHttpTxnRedirectRequest(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc url_loc);
+  tsapi TSReturnCode TSHttpTxnServerRespIgnore(TSHttpTxn txnp);
+  tsapi TSReturnCode TSHttpTxnShutDown(TSHttpTxn txnp, TSEvent event);
+  tsapi TSReturnCode TSHttpTxnCloseAfterResponse(TSHttpTxn txnp, int should_close);
+
+  /* TS-1996: These API swill be removed after v3.4.0 is cut. Do not use them! */
+  tsapi TSReturnCode TSHttpTxnNewCacheLookupDo(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc url_loc);
+  tsapi TSReturnCode TSHttpTxnSecondUrlTryLock(TSHttpTxn txnp);
+
+  /****************************************************************************
+   *  ??
+   *  Return ??
+   ****************************************************************************/
+  tsapi int TSHttpTxnClientReqIsServerStyle(TSHttpTxn txnp);
+
+  /****************************************************************************
+   *  ??
+   *  Return ??
+   ****************************************************************************/
+  tsapi void TSHttpTxnOverwriteExpireTime(TSHttpTxn txnp, time_t expire_time);
+
+  /****************************************************************************
+   *  ??
+   *  Return ??
+   ****************************************************************************/
+  tsapi TSReturnCode TSHttpTxnUpdateCachedObject(TSHttpTxn txnp);
+
+  /****************************************************************************
+   *  ??
+   *  TODO: This returns a LookingUp_t value, we need to SDK'ify it.
+   ****************************************************************************/
+  tsapi int TSHttpTxnLookingUpTypeGet(TSHttpTxn txnp);
+
+  /**
+     Attempt to attach the contp continuation to sockets that have already been
+     opened by the traffic manager and defined as belonging to plugins (based on
+     records.config configuration). If a connection is successfully accepted,
+     the TS_EVENT_NET_ACCEPT is delivered to the continuation. The event
+     data will be a valid TSVConn bound to the accepted connection.
+     In order to configure such a socket, add the "plugin" keyword to a port
+     in proxy.config.http.server_ports like "8082:plugin"
+     Transparency/IP settings can also be defined, but a port cannot have
+     both the "ssl" or "plugin" keywords configured.
+
+     Need to update records.config comments on proxy.config.http.server_ports
+     when this option is promoted from experimental.
+   */
+  tsapi TSReturnCode TSPluginDescriptorAccept(TSCont contp);
+
+
+  /**
+      Opens a network connection to the host specified by the 'to' sockaddr
+      spoofing the client addr to equal the 'from' sockaddr.
+      If the connection is successfully opened, contp
+      is called back with the event TS_EVENT_NET_CONNECT and the new
+      network vconnection will be passed in the event data parameter.
+      If the connection is not successful, contp is called back with
+      the event TS_EVENT_NET_CONNECT_FAILED.
+
+      Note: It is possible to receive TS_EVENT_NET_CONNECT
+      even if the connection failed, because of the implementation of
+      network sockets in the underlying operating system. There is an
+      exception: if a plugin tries to open a connection to a port on
+      its own host machine, then TS_EVENT_NET_CONNECT is sent only
+      if the connection is successfully opened. In general, however,
+      your plugin needs to look for an TS_EVENT_VCONN_WRITE_READY to
+      be sure that the connection is successfully opened.
+
+      @return TSAction which allows you to check if the connection is complete,
+        or cancel the attempt to connect.
+
+   */
+  tsapi TSAction TSNetConnectTransparent(TSCont contp, /**< continuation that is called back when the attempted net connection either succeeds or fails. */
+                                         struct sockaddr const* from, /**< Address to spoof as connection origin */
+                                         struct sockaddr const* to /**< Address to which to connect. */
+  );
+
+
+  /* =====  Matcher Utils =====  */
+#define               TS_MATCHER_LINE_INVALID 0
+  typedef struct tsapi_matcheline* TSMatcherLine;
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi char *TSMatcherReadIntoBuffer(char *file_name, int *file_len);
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi char *TSMatcherTokLine(char *buffer, char **last);
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi char *TSMatcherExtractIPRange(char *match_str, uint32_t *addr1, uint32_t *addr2);
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi TSMatcherLine TSMatcherLineCreate();
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi void TSMatcherLineDestroy(TSMatcherLine ml);
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi const char *TSMatcherParseSrcIPConfigLine(char *line, TSMatcherLine ml);
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi char *TSMatcherLineName(TSMatcherLine ml, int element);
+
+  /****************************************************************************
+   *  ??
+   *  Return
+   ****************************************************************************/
+  tsapi char *TSMatcherLineValue(TSMatcherLine ml, int element);
+
+  /****************************************************************************
+   *  Set a records.config integer variable
+   ****************************************************************************/
+  tsapi TSReturnCode TSMgmtConfigIntSet(const char *var_name, TSMgmtInt value);
+
+  /* ----------------------------------------------------------------------
+   * Interfaces used by Wireless group
+   * ---------------------------------------------------------------------- */
+
+#define TS_NET_EVENT_DATAGRAM_READ_COMPLETE  TS_EVENT_INTERNAL_206
+#define TS_NET_EVENT_DATAGRAM_READ_ERROR     TS_EVENT_INTERNAL_207
+#define TS_NET_EVENT_DATAGRAM_WRITE_COMPLETE TS_EVENT_INTERNAL_208
+#define TS_NET_EVENT_DATAGRAM_WRITE_ERROR    TS_EVENT_INTERNAL_209
+#define TS_NET_EVENT_DATAGRAM_READ_READY     TS_EVENT_INTERNAL_210
+#define TS_NET_EVENT_DATAGRAM_OPEN           TS_EVENT_INTERNAL_211
+#define TS_NET_EVENT_DATAGRAM_ERROR          TS_EVENT_INTERNAL_212
+
+  /*****************************************************************************
+   * 			Cluster RPC API support 			     *
+   *****************************************************************************/
+  /*
+   *  Usage notes:
+   *    1) User is responsible for marshalling and unmarshaling data.
+   *    2) RPC message incompatiblities due to different plugin versions
+   *	 must be dealt with by the user.
+   *    3) Upon receipt of a machine offline, no guarantees are made about
+   *	 messages sent prior to the machine offline.
+   *    4) A node transitioning to the online state in an active cluster,
+   *	 is assumed to have no prior knowledge of messages processed in
+   *	 the past.
+   *    5) Key point to reiterate, actions taken in the functions specified in
+   *	 TSAddClusterStatusFunction() and TSAddClusterRPCFunction() must
+   *       be non-blocking (i.e. usage of TSMutexLock() and file i/o is
+   *       not allowed).
+   *    6) TSSendClusterRPC() can only process TSClusterRPCMsg_t generated
+   *	 by TSAllocClusterRPCMsg().  Failure to adhere to this rule will
+   *	 result in heap corruption.
+   *    7) Messages sent via TSSendClusterRPC() must be at least 4 bytes in
+   * 	 length.
+   *    8) The user is not provided with any alignment guarantees on the
+   *	 'm_data' field in the TSClusterRPCMsg_t returned via
+   *	 TSAllocClusterRPCMsg().  Assume byte alignment.
+   *    9) TSSendClusterRPC() interface owns the memory and is responsible
+   *       for freeing the memory.
+   *   10) RPC functions defined via TSAddClusterRPCFunction() own the
+   *       memory when invoked and are responsible for freeing it via
+   *	 TSFreeRPCMsg().
+   */
+#define MAX_CLUSTER_NODES 256
+
+  typedef struct TSClusterRPCHandle
+  {
+    int opaque[2];
+  } TSClusterRPCHandle_t;
+
+  typedef int TSClusterStatusHandle_t;
+  typedef int TSNodeHandle_t;
+
+  typedef struct TSClusterRPCMsg
+  {
+    TSClusterRPCHandle_t m_handle;
+    char m_data[4];
+  } TSClusterRPCMsg_t;
+
+  typedef enum
+    {
+      NODE_ONLINE = 1,
+      NODE_OFFLINE
+    } TSNodeStatus_t;
+
+  typedef enum
+    {
+      RPC_API_WIRELESS_F01 = 51,
+      RPC_API_WIRELESS_F02,
+      RPC_API_WIRELESS_F03,
+      RPC_API_WIRELESS_F04,
+      RPC_API_WIRELESS_F05,
+      RPC_API_WIRELESS_F06,
+      RPC_API_WIRELESS_F07,
+      RPC_API_WIRELESS_F08,
+      RPC_API_WIRELESS_F09,
+      RPC_API_WIRELESS_F10
+    } TSClusterRPCKey_t;
+
+  typedef void (*TSClusterRPCFunction) (TSNodeHandle_t *node, TSClusterRPCMsg_t *msg, int msg_data_len);
+  typedef void (*TSClusterStatusFunction) (TSNodeHandle_t *node, TSNodeStatus_t s);
+
+  /****************************************************************************
+   *  Subscribe to node up/down status notification.     		    *
+   *	Return == 0 Success						    *
+   *	Return != 0 Failure						    *
+   * contact: OXY, DY
+   ****************************************************************************/
+  tsapi int TSAddClusterStatusFunction(TSClusterStatusFunction Status_Function, TSMutex m, TSClusterStatusHandle_t *h);
+  /****************************************************************************
+   *  Cancel subscription to node up/down status notification. 		    *
+   *	Return == 0 Success						    *
+   *	Return != 0 Failure						    *
+   * contact: OXY, DY
+   ****************************************************************************/
+  tsapi int TSDeleteClusterStatusFunction(TSClusterStatusHandle_t *h);
+
+  /****************************************************************************
+   *  Get the struct in_addr associated with the TSNodeHandle_t.	    *
+   *	Return == 0 Success						    *
+   *	Return != 0 Failure						    *
+   * contact: OXY, DY
+   ****************************************************************************/
+  tsapi int TSNodeHandleToIPAddr(TSNodeHandle_t *h, struct in_addr *in);
+
+  /****************************************************************************
+   *  Get the TSNodeHandle_t for the local node.	    	    	    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi void TSGetMyNodeHandle(TSNodeHandle_t *h);
+
+  /****************************************************************************
+   *  Enable node up/down notification for subscription added via 	    *
+   *  TSAddClusterStatusFunction().					    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi void TSEnableClusterStatusCallout(TSClusterStatusHandle_t *h);
+
+  /****************************************************************************
+   *  Associate the given key with the given RPC function.		    *
+   *	Return == 0 Success						    *
+   *	Return != 0 Failure						    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi int TSAddClusterRPCFunction(TSClusterRPCKey_t k, TSClusterRPCFunction RPC_Function, TSClusterRPCHandle_t *h);
+
+  /****************************************************************************
+   *  Delete the key to function association created via 		    *
+   *  TSAddClusterRPCFunction().					    *
+   *	Return == 0 Success						    *
+   *	Return != 0 Failure						    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi int TSDeleteClusterRPCFunction(TSClusterRPCHandle_t *h);
+
+  /****************************************************************************
+   *  Free TSClusterRPCMsg_t received via RPC function		    	    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi void TSFreeRPCMsg(TSClusterRPCMsg_t *msg, int msg_data_len);
+
+  /****************************************************************************
+   *  Allocate TSClusterRPCMsg_t for use in TSSendClusterRPC() 		    *
+   *	Return != 0 Success						    *
+   *	Return == 0 Allocation failed					    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi TSClusterRPCMsg_t *TSAllocClusterRPCMsg(TSClusterRPCHandle_t *h, int data_size);
+
+  /****************************************************************************
+   *  Send the RPC message to the specified node.			    *
+   *    Cluster frees the given memory on send.				    *
+   *    RPC function frees memory on receive.				    *
+   *	Return == 0 Success						    *
+   *	Return != 0 Failure						    *
+   *  contact: OXY, DY
+   ****************************************************************************/
+  tsapi int TSSendClusterRPC(TSNodeHandle_t *nh, TSClusterRPCMsg_t *msg);
+
+
+
+  /*
+    This is for the prefetch APIs, this really has to be cleaned out. This is
+    some pretty seriously broken stuff, and we should decide whether it should
+    die and be redone properly. A few of the issues include:
+
+       * The hooks are not normal ATS continuations, just plain callbacks.
+       * The hooks are therefore not registered the normal way either...
+       * And thusly, there can only be one callback for each of the three
+         Prefetch "hooks".
+       * The example plugins don't compile, there are old / missing pieces.
+  */
+
+  typedef enum
+  {
+    TS_PREFETCH_UDP_BLAST = 0,
+    TS_PREFETCH_TCP_BLAST,
+    TS_PREFETCH_MULTICAST_BLAST
+  } TSPrefetchBlastType;
+
+  typedef struct
+  {
+    TSPrefetchBlastType type;
+    struct sockaddr_storage ip;
+  } TSPrefetchBlastData;
+
+  typedef enum
+  {
+    TS_PREFETCH_OBJ_BUF_NOT_NEEDED = 0,
+    TS_PREFETCH_OBJ_BUF_NEEDED,  /* The user wants the buffer but does not
+                                    want it to be transmitted to the child */
+    TS_PREFETCH_OBJ_BUF_NEEDED_N_TRANSMITTED     /* The object should
+                                                    be transmitted as well */
+  } TSPrefetchStatus;
+
+  /* return type for TSPrefetchHook */
+  typedef enum
+    {
+      TS_PREFETCH_CONTINUE,
+      TS_PREFETCH_DISCONTINUE
+    } TSPrefetchReturnCode;
+
+
+  /* prefetch hooks, which are *not* normal hooks (no continuations) */
+  typedef enum
+  {
+    TS_PREFETCH_PRE_PARSE_HOOK,
+    /* This hook is invoked just before we begin to parse a document
+       request and response headers are available.
+       Return value: TS_PREFETCH_CONTINUE  :continue parsing
+       TS_PREFETCH_DISCONTIUE: don't bother parser
+    */
+
+    TS_PREFETCH_EMBEDDED_URL_HOOK,
+    /* This hook is invoked when a URL is extracted.
+       url_proto and url_response_proto contain the default protocols used
+       for sending the url and actual url object respectively to the child.
+       The hook can change thes to one of the 3 methods mentioned above.
+       Return value: TS_PREFETCH_CONTINUE  : prefetch this url.
+       TS_PREFETCH_DISCONTIUE: don't bother prefetching this
+       url
+    */
+
+    TS_PREFETCH_EMBEDDED_OBJECT_HOOK
+    /* This hook is invoked when the user wants to have access to the buffer
+       of the embedded object we prefetched. We pass in the buffer reader.
+       The reader contains the data in the format specified in the Prefetch
+       document (with 12 byte header etc).
+       It is the users responsibility to free the reader.
+       The only valid field in the PrefetchInfo structure object_buf_reader.
+       embedded_url, object_buf, object_buf_reader, and object_buf_status are
+       set in TSPrefetchInfo passed as arguments
+    */
+  } TSPrefetchHookID;
+
+
+  /* This holds the main Prefetch information as used by the hook callbacks. */
+  typedef struct
+  {
+    /*request header */
+    TSMBuffer request_buf;
+    TSMLoc request_loc;
+
+    /*response header */
+    TSMBuffer response_buf;
+    TSMLoc response_loc;
+
+    /*child ip addr in network order */
+    struct sockaddr_storage client_ip;
+
+    /*the embedded url parsed by the parser */
+    const char *embedded_url;
+
+    /* flag which says if a perticular embedded url is present in the cache */
+    int present_in_cache;
+
+    /* Reader for the buffer which contains the prefetched object */
+    TSIOBuffer object_buf;
+    TSIOBufferReader object_buf_reader;
+
+    /* This specifies if we need to invoke the OBJECT_HOOK and whether we
+       need to send the buffer to child as well
+       This should set inside EMBEDDED_URL_HOOK by the user
+    */
+    int object_buf_status;
+
+    /** Method of sending data to child.
+
+        If set to @c MULTICAST_BLAST then the corresponding address
+        value must be set to a multicast address to use.
+    */
+    TSPrefetchBlastData url_blast;
+    TSPrefetchBlastData url_response_blast;
+
+  } TSPrefetchInfo;
+
+  typedef TSPrefetchReturnCode (*TSPrefetchHook) (TSPrefetchHookID hook, TSPrefetchInfo* prefetch_info);
+
+  /* Registers a hook for the given hook_no.
+     A hook is already present, it is replace by hook_fn
+     return value 0 indicates success */
+  tsapi int TSPrefetchHookSet(int hook_no, TSPrefetchHook hook_fn);
+
+
+  /**
+   * Extended FetchSM's AIPs
+   */
+
+  /*
+   * Create FetchSM, this API will enable stream IO automatically.
+   *
+   * @param contp: continuation to be callbacked.
+   * @param method: request method.
+   * @param url: scheme://host[:port]/path.
+   * @param version: client http version, eg: "HTTP/1.1".
+   * @param client_addr: client addr sent to log.
+   * @param flags: can be bitwise OR of several TSFetchFlags.
+   *
+   * return TSFetchSM which should be destroyed by TSFetchDestroy().
+   */
+  tsapi TSFetchSM TSFetchCreate(TSCont contp, TSFetchMethod method,
+                                const char *url, const char *version,
+                                struct sockaddr const* client_addr, int flags);
+
+  /*
+   * Create FetchSM, this API will enable stream IO automatically.
+   *
+   * @param fetch_sm: returned value of TSFetchCreate().
+   * @param name: name of header.
+   * @param name_len: len of name.
+   * @param value: value of header.
+   * @param name_len: len of value.
+   *
+   * return TSFetchSM which should be destroyed by TSFetchDestroy().
+   */
+  tsapi void TSFetchHeaderAdd(TSFetchSM fetch_sm,
+                              const char *name, int name_len,
+                              const char *value, int value_len);
+
+  /*
+   * Write data to FetchSM
+   *
+   * @param fetch_sm: returned value of TSFetchCreate().
+   * @param data/len: data to be written to fetch sm.
+   */
+  tsapi void TSFetchWriteData(TSFetchSM fetch_sm, const void *data, size_t len);
+
+  /*
+   * Read up to *len* bytes from FetchSM into *buf*.
+   *
+   * @param fetch_sm: returned value of TSFetchCreate().
+   * @param buf/len: buffer to contain data from fetch sm.
+   */
+  tsapi ssize_t TSFetchReadData(TSFetchSM fetch_sm, void *buf, size_t len);
+
+  /*
+   * Lanuch FetchSM to do http request, before calling this API,
+   * you should append http request header into fetch sm through
+   * TSFetchWriteData() API
+   *
+   * @param fetch_sm: comes from returned value of TSFetchCreate().
+   */
+  tsapi void TSFetchLaunch(TSFetchSM fetch_sm);
+
+  /*
+   * Destroy FetchSM
+   *
+   * @param fetch_sm: returned value of TSFetchCreate().
+   */
+  tsapi void TSFetchDestroy(TSFetchSM fetch_sm);
+
+  /*
+   * Set user-defined data in FetchSM
+   */
+  tsapi void TSFetchUserDataSet(TSFetchSM fetch_sm, void *data);
+
+  /*
+   * Get user-defined data in FetchSM
+   */
+  tsapi void* TSFetchUserDataGet(TSFetchSM fetch_sm);
+
+  /*
+   * Get client response hdr mbuffer
+   */
+  tsapi TSMBuffer TSFetchRespHdrMBufGet(TSFetchSM fetch_sm);
+
+  /*
+   * Get client response hdr mloc
+   */
+  tsapi TSMLoc TSFetchRespHdrMLocGet(TSFetchSM fetch_sm);
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+#endif                          /* __TS_API_EXPERIMENTAL_H__ */
diff --git a/proxy/api/ts/remap.h b/proxy/api/ts/remap.h
new file mode 100644
index 00000000..fa4f9fbc
--- /dev/null
+++ b/proxy/api/ts/remap.h
@@ -0,0 +1,137 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __TS_REMAP_H__
+#define __TS_REMAP_H__
+
+#ifndef tsapi
+#define tsapi
+#endif
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif                          /* __cplusplus */
+
+#define TSREMAP_VMAJOR   3      /* major version number */
+#define TSREMAP_VMINOR   0      /* minor version number */
+#define TSREMAP_VERSION ((TSREMAP_VMAJOR << 16)|TSREMAP_VMINOR)
+
+  typedef struct _tsremap_api_info
+  {
+    unsigned long size;         /* in: sizeof(struct _tsremap_api_info) */
+    unsigned long tsremap_version;      /* in: TS supported version ((major << 16) | minor) */
+  } TSRemapInterface;
+
+
+  typedef struct _tm_remap_request_info
+  {
+    /* Important: You should *not* release these buf pointers or TSMLocs from your plugin! */
+
+    /* these URL mloc's are read only, use normal ts/ts.h APIs for accesing  */
+    TSMLoc mapFromUrl;
+    TSMLoc mapToUrl;
+
+    /* the request URL mloc and buffer pointers are read-write. You can read and modify the
+     requestUrl using normal ts/ts.h APIs, which is how you change the destination URL. */
+    TSMLoc requestUrl;
+
+    /* requestBufp and requestHdrp are the equivalent of calling TSHttpTxnClientReqGet(). */
+    TSMBuffer requestBufp;
+    TSMLoc requestHdrp;
+
+    /* 0 - don't redirect, 1 - use the (new)request URL as a redirect */
+    int redirect;
+  } TSRemapRequestInfo;
+
+
+  /* This is the type returned by the TSRemapDoRemap() callback */
+  typedef enum
+  {
+    TSREMAP_NO_REMAP = 0,	/* No remaping was done, continue with next in chain */
+    TSREMAP_DID_REMAP = 1,	/* Remapping was done, continue with next in chain */
+    TSREMAP_NO_REMAP_STOP = 2,	/* No remapping was done, and stop plugin chain evaluation */
+    TSREMAP_DID_REMAP_STOP = 3,	/* Remapping was done, but stop plugin chain evaluation */
+
+    /* In the future, the following error codes can also be used:
+       -400 to -499
+       -500 to -599
+       ....
+       This would allow a plugin to generate an error page. Right now,
+       setting the return code to any negative number is equivalent to TSREMAP_NO_REMAP */
+    TSREMAP_ERROR = -1		/* Some error, that should generate an error page */
+  } TSRemapStatus;
+
+
+
+  /* ----------------------------------------------------------------------------------
+     These are the entry points a plugin can implement. Note that TSRemapInit() and
+     TSRemapDoRemap() are both required.
+     ----------------------------------------------------------------------------------
+  */
+
+  /* Plugin initialization - called first.
+     Mandatory interface function.
+     Return: TS_SUCCESS
+             TS_ERROR - error, errbuf can include error message from plugin
+  */
+  tsapi TSReturnCode TSRemapInit(TSRemapInterface* api_info, char* errbuf, int errbuf_size);
+
+
+  /* Remap new request
+     Mandatory interface function.
+     Remap API plugin can/should use SDK API function calls inside this function!
+     return: TSREMAP_NO_REMAP - No remaping was done, continue with next in chain
+             TSREMAP_DID_REMAP - Remapping was done, continue with next in chain
+             TSREMAP_NO_REMAP_STOP - No remapping was done, and stop plugin chain evaluation
+             TSREMAP_DID_REMAP_STOP -  Remapping was done, but stop plugin chain evaluation
+  */
+  tsapi TSRemapStatus TSRemapDoRemap(void* ih, TSHttpTxn rh, TSRemapRequestInfo* rri);
+
+
+  /* Plugin shutdown, called when plugin is unloaded.
+     Optional function. */
+  tsapi void TSRemapDone(void);
+
+
+  /* Plugin new instance. Create new plugin processing entry for unique remap record.
+     First two arguments in argv vector are - fromURL and toURL from remap record.
+     Please keep in mind that fromURL and toURL will be converted to canonical view.
+     Return: TS_SUCESS
+             TS_ERROR - instance creation error
+  */
+  tsapi TSReturnCode TSRemapNewInstance(int argc, char* argv[], void** ih, char* errbuf, int errbuf_size);
+  tsapi void TSRemapDeleteInstance(void*);
+
+
+  /* Check response code from Origin Server
+     os_response_type -> TSServerState
+     Remap API plugin can use InkAPI function calls inside TSRemapDoRemap()
+     Return: none
+  */
+  tsapi void TSRemapOSResponse(void* ih, TSHttpTxn rh, int os_response_type);
+
+#ifdef __cplusplus
+}
+#endif                          /* __cplusplus */
+#endif                          /* #ifndef __TS_REMAP_H__ */
diff --git a/proxy/api/ts/ts.h b/proxy/api/ts/ts.h
new file mode 100644
index 00000000..e00aa68f
--- /dev/null
+++ b/proxy/api/ts/ts.h
@@ -0,0 +1,2344 @@
+/** @file
+
+  Traffic Server SDK API header file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section developers Developers
+
+  Developers, when adding a new element to an enum, append it. DO NOT
+  insert it.  Otherwise, binary compatibility of plugins will be broken!
+
+ */
+
+#ifndef __TS_API_H__
+#define __TS_API_H__
+
+#include "apidefs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+  /* --------------------------------------------------------------------------
+     Memory */
+#define TSmalloc(s)      _TSmalloc ((s), TS_RES_MEM_PATH)
+#define TSrealloc(p,s)   _TSrealloc ((p), (s), TS_RES_MEM_PATH)
+#define TSstrdup(p)      _TSstrdup ((p), -1, TS_RES_MEM_PATH)
+#define TSstrndup(p,n)   _TSstrdup ((p), (n), TS_RES_MEM_PATH)
+#define TSstrlcpy(d,s,l) _TSstrlcpy ((d), (s), (l))
+#define TSstrlcat(d,s,l) _TSstrlcat ((d), (s), (l))
+#define TSfree(p)        _TSfree (p)
+
+  tsapi void* _TSmalloc(size_t size, const char* path);
+  tsapi void* _TSrealloc(void* ptr, size_t size, const char* path);
+  tsapi char* _TSstrdup(const char* str, int64_t length, const char* path);
+  tsapi size_t _TSstrlcpy(char *dst, const char *str, size_t siz);
+  tsapi size_t _TSstrlcat(char *dst, const char *str, size_t siz);
+  tsapi void _TSfree(void* ptr);
+
+  /* --------------------------------------------------------------------------
+     Component object handles */
+  /**
+      Releases the TSMLoc mloc created from the TSMLoc parent.
+      If there is no parent TSMLoc, use TS_NULL_MLOC.
+
+      @param bufp marshal buffer containing the TSMLoc handle to be
+        released.
+      @param parent location of the parent object from which the handle
+        was created.
+      @param mloc location of the handle to be released.
+
+   */
+  tsapi TSReturnCode TSHandleMLocRelease(TSMBuffer bufp, TSMLoc parent, TSMLoc mloc);
+
+  /* --------------------------------------------------------------------------
+     Install and plugin locations */
+  /**
+      Gets the path of the directory in which Traffic Server is installed.
+      Use this function to specify the location of files that the
+      plugin uses.
+
+      @return pointer to Traffic Server install directory.
+
+   */
+  tsapi const char* TSInstallDirGet(void);
+
+  /**
+      Gets the path of the directory of Traffic Server configuration.
+
+      @return pointer to Traffic Server configuration directory.
+
+   */
+  tsapi const char* TSConfigDirGet(void);
+
+  /**
+      Gets the path of the plugin directory relative to the Traffic Server
+      install directory. For example, to open the file "config_ui.txt" in
+      the plugin directory:
+
+      @code
+      TSfopen("TSPluginInstallDirGet()/TSPluginDirGet()/config_ui.txt");
+      @endcode
+
+      @return pointer to plugin directory relative to Traffic Server install
+      directory.
+
+   */
+  tsapi const char* TSPluginDirGet(void);
+
+  /* --------------------------------------------------------------------------
+     Traffic Server Version */
+  /**
+      Gets the version of Traffic Server currently running. Use this
+      function to make sure that the plugin version and Traffic Server
+      version are compatible. See the SDK sample code for usage.
+
+      @return pointer to version of Traffic Server running the plugin.
+
+   */
+  tsapi const char* TSTrafficServerVersionGet(void);
+
+  /**  Get the major version of Traffic Server currently running.
+       This is the same as the first element of the string
+       returned by @c TSTrafficServerVersionGet
+
+       @return The major version as an integer.
+   */
+  int TSTrafficServerVersionGetMajor(void);
+
+  /**  Get the minor version of Traffic Server currently running.
+       This is the same as the second element of the string
+       returned by @c TSTrafficServerVersionGet
+
+       @return The minor version as an integer.
+   */
+  int TSTrafficServerVersionGetMinor(void);
+
+  /**  Get the patch version of Traffic Server currently running.
+       This is the same as the third element of the string
+       returned by @c TSTrafficServerVersionGet
+
+       @return The patch version as an integer.
+   */
+  int TSTrafficServerVersionGetPatch(void);
+
+  /* --------------------------------------------------------------------------
+     Plugin registration */
+
+  /**
+      This function registers your plugin with a particular version
+      of Traffic Server SDK. Use this function to make sure that the
+      Traffic Server version currently running also supports your plugin.
+      See the SDK sample code for usage.
+
+      @param sdk_version earliest version of the Traffic Server SDK that
+        supports your plugin.
+      @param plugin_info contains registration information about your
+        plugin. See TSPluginRegistrationInfo.
+      @return TS_ERROR if the plugin registration failed.
+
+   */
+  tsapi TSReturnCode TSPluginRegister(TSSDKVersion sdk_version, TSPluginRegistrationInfo* plugin_info);
+
+  /* --------------------------------------------------------------------------
+     Files */
+  /**
+      Opens a file for reading or writing and returns a descriptor for
+      accessing the file. The current implementation cannot open a file
+      for both reading or writing. See the SDK Programmer's Guide for
+      sample code.
+
+      @param filename file to be opened.
+      @param mode specifies whether to open the file for reading or
+        writing. If mode is "r" then the file is opened for reading.
+        If mode is "w" then the file is opened for writing. Currently
+        "r" and "w" are the only two valid modes for opening a file.
+      @return descriptor for the file that TSfopen opens. Descriptors of
+        type TSFile can be greater than 256.
+
+   */
+  tsapi TSFile TSfopen(const char* filename, const char* mode);
+
+  /**
+      Closes the file to which filep points and frees the data structures
+      and buffers associated with it. If the file was opened for writing,
+      any pending data is flushed.
+
+      @param filep file to be closed.
+
+   */
+  tsapi void TSfclose(TSFile filep);
+
+  /**
+      Attempts to read length bytes of data from the file pointed to by
+      filep into the buffer buf.
+
+      @param filep name of the file to read from.
+      @param buf buffer to read into.
+      @param length amount of data to read, in bytes.
+      @return number of bytes read. If end of the file, it returns 0.
+        If the file was not opened for reading or if an error occurs
+        while reading the file, it returns -1.
+
+   */
+  tsapi size_t TSfread(TSFile filep, void* buf, size_t length);
+
+  /**
+      Attempts to write length bytes of data from the buffer buf
+      to the file filep. Make sure that filep is open for writing.
+      You might want to check the number of bytes written (TSfwrite()
+      returns this value) against the value of length. If it is less,
+      there might be insufficient space on disk, for example.
+
+      @param filep file to write into.
+      @param buf buffer containing the data to be written.
+      @param length amount of data to write to filep, in bytes.
+      @return number of bytes written to filep. If the file was not
+        opened for writing, it returns -1. If an error occurs while
+        writing, it returns the number of bytes successfully written.
+
+   */
+  tsapi size_t TSfwrite(TSFile filep, const void* buf, size_t length);
+
+  /**
+      Flushes pending data that has been buffered up in memory from
+      previous calls to TSfwrite().
+
+      @param filep file to flush.
+
+   */
+  tsapi void TSfflush(TSFile filep);
+
+  /**
+      Reads a line from the file pointed to by filep into the buffer buf.
+      Lines are terminated by a line feed character, '\n'. The line
+      placed in the buffer includes the line feed character and is
+      terminated with a NULL. If the line is longer than length bytes
+      then only the first length-minus-1 bytes are placed in buf.
+
+      @param filep file to read from.
+      @param buf buffer to read into.
+      @param length size of the buffer to read into.
+      @return pointer to the string read into the buffer buf.
+
+   */
+  tsapi char* TSfgets(TSFile filep, char* buf, size_t length);
+
+  /* --------------------------------------------------------------------------
+     Error logging */
+  /**
+      Writes printf-style error messages to the Traffic Server error
+      log. One advantage of TSError over printf is that each call is
+      atomically placed into the error log and is not garbled with other
+      error entries. This is not an issue in single-threaded programs
+      but is a definite nuisance in multi-threaded programs.
+
+      @param fmt printf format description.
+      @param ... argument for the printf format description.
+
+  */
+  tsapi void TSError(const char* fmt, ...) TS_PRINTFLIKE(1, 2);
+
+  /* --------------------------------------------------------------------------
+     Assertions */
+  tsapi void _TSReleaseAssert(const char* txt, const char* f, int l) TS_NORETURN;
+  tsapi int _TSAssert(const char* txt, const char* f, int l);
+
+#define TSReleaseAssert(EX) \
+            ( (void)((EX) ? (void)0 : _TSReleaseAssert(#EX, __FILE__, __LINE__)) )
+
+#define TSAssert(EX) \
+            (void)((EX) || (_TSAssert(#EX, __FILE__, __LINE__)))
+
+  /* --------------------------------------------------------------------------
+     Marshal buffers */
+  /**
+      Creates a new marshal buffer and initializes the reference count
+      to 1.
+
+   */
+  tsapi TSMBuffer TSMBufferCreate(void);
+
+  /**
+      Ignores the reference count and destroys the marshal buffer bufp.
+      The internal data buffer associated with the marshal buffer is
+      also destroyed if the marshal buffer allocated it.
+
+      @param bufp marshal buffer to be destroyed.
+
+   */
+  tsapi TSReturnCode TSMBufferDestroy(TSMBuffer bufp);
+
+  /* --------------------------------------------------------------------------
+     URLs */
+  /**
+      Creates a new URL within the marshal buffer bufp. Returns a
+      location for the URL within the marshal buffer.
+
+      @param bufp marshal buffer containing the new URL.
+      @param locp pointer to a TSMLoc to store the MLoc into.
+
+   */
+  tsapi TSReturnCode TSUrlCreate(TSMBuffer bufp, TSMLoc* locp);
+
+  /**
+      Destroys the URL located at url_loc within the marshal buffer
+      bufp. Do not forget to release the TSMLoc url_loc with a call
+      to TSHandleMLocRelease().
+
+      @param bufp marshal buffer containing the URL to be destroyed.
+      @param offset location of the URL to be destroyed.
+
+   */
+  /** @deprecated There is no reason to destroy the URL, just release
+      the marshal buffers. Should be removed for v5.0.0 */
+  tsapi TS_DEPRECATED TSReturnCode TSUrlDestroy(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Copies the URL located at src_url within src_bufp to a URL
+      location within the marshal buffer dest_bufp, and returns the
+      TSMLoc location of the copied URL. Unlike TSUrlCopy(), you do
+      not have to create the destination URL before cloning. Release
+      the returned TSMLoc handle with a call to TSHandleMLocRelease().
+
+      @param dest_bufp marshal buffer containing the cloned URL.
+      @param src_bufp marshal buffer containing the URL to be cloned.
+      @param src_url location of the URL to be cloned, within the marshal
+        buffer src_bufp.
+      @param locp pointer to a TSMLoc to store the MLoc into.
+
+   */
+  tsapi TSReturnCode TSUrlClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_url, TSMLoc* locp);
+
+  /**
+      Copies the contents of the URL at location src_loc within the
+      marshal buffer src_bufp to the location dest_loc within the marshal
+      buffer dest_bufp. TSUrlCopy() works correctly even if src_bufp
+      and dest_bufp point to different marshal buffers. Important: create
+      the destination URL before copying into it. Use TSUrlCreate().
+
+      @param dest_bufp marshal buffer to contain the copied URL.
+      @param dest_offset location of the URL to be copied.
+      @param src_bufp marshal buffer containing the source URL.
+      @param src_offset location of the source URL within src_bufp.
+
+   */
+  tsapi TSReturnCode TSUrlCopy(TSMBuffer dest_bufp, TSMLoc dest_offset, TSMBuffer src_bufp, TSMLoc src_offset);
+
+  /**
+      Formats a URL stored in an TSMBuffer into an TSIOBuffer.
+
+      @param bufp marshal buffer contain the URL to be printed.
+      @param offset location of the URL within bufp.
+      @param iobufp destination TSIOBuffer for the URL.
+
+   */
+  tsapi void TSUrlPrint(TSMBuffer bufp, TSMLoc offset, TSIOBuffer iobufp);
+
+  /**
+      Parses a URL. The start pointer is both an input and an output
+      parameter and marks the start of the URL to be parsed. After
+      a successful parse, the start pointer equals the end pointer.
+      The end pointer must be one byte after the last character you
+      want to parse. The URL parsing routine assumes that everything
+      between start and end is part of the URL. It is up to higher level
+      parsing routines, such as TSHttpHdrParseReq(), to determine the
+      actual end of the URL. Returns TS_PARSE_ERROR if an error occurs,
+      otherwise TS_PARSE_DONE is returned to indicate success.
+
+      @param bufp marshal buffer containing the URL to be parsed.
+      @param offset location of the URL to be parsed.
+      @param start points to the start of the URL to be parsed AND at
+        the end of a successful parse it will equal the end pointer.
+      @param end must be one byte after the last character.
+      @return TS_PARSE_ERROR or TS_PARSE_DONE.
+
+   */
+  tsapi TSParseResult TSUrlParse(TSMBuffer bufp, TSMLoc offset, const char** start, const char* end);
+
+  /**
+      Calculates the length of the URL located at url_loc within the
+      marshal buffer bufp if it were returned as a string. This length
+      is the same as the length returned by TSUrlStringGet().
+
+      @param bufp marshal buffer containing the URL whose length you want.
+      @param offset location of the URL within the marshal buffer bufp.
+      @return string length of the URL.
+
+   */
+  tsapi int TSUrlLengthGet(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Constructs a string representation of the URL located at url_loc
+      within bufp. TSUrlStringGet() stores the length of the allocated
+      string in the parameter length. This is the same length that
+      TSUrlLengthGet() returns. The returned string is allocated by a
+      call to TSmalloc(). It should be freed by a call to TSfree().
+      The length parameter must present, providing storage for the URL
+      string length value.
+      Note: To get the effective URL from a request, use the alternative
+            TSHttpTxnEffectiveUrlStringGet API.
+
+      @param bufp marshal buffer containing the URL you want to get.
+      @param offset location of the URL within bufp.
+      @param length string length of the URL.
+      @return The URL as a string.
+
+   */
+  tsapi char* TSUrlStringGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Retrieves the scheme portion of the URL located at url_loc within
+      the marshal buffer bufp. TSUrlSchemeGet() places the length of
+      the string in the length argument. If the length is NULL then no
+      attempt is made to dereference it.
+
+      @param bufp marshal buffer storing the URL.
+      @param offset location of the URL within bufp.
+      @param length length of the returned string.
+      @return The scheme portion of the URL, as a string.
+
+   */
+  tsapi const char* TSUrlSchemeGet(TSMBuffer bufp, TSMLoc offset, int *length);
+
+  /**
+      Sets the scheme portion of the URL located at url_loc within
+      the marshal buffer bufp to the string value. If length is -1
+      then TSUrlSchemeSet() assumes that value is null-terminated.
+      Otherwise, the length of the string value is taken to be length.
+      TSUrlSchemeSet() copies the string to within bufp, so it is OK
+      to modify or delete value after calling TSUrlSchemeSet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param value value to set the URL's scheme to.
+      @param length string stored in value.
+
+   */
+  tsapi TSReturnCode TSUrlSchemeSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /* --------------------------------------------------------------------------
+     Internet specific URLs */
+  /**
+      Retrieves the user portion of the URL located at url_loc
+      within bufp. Note: the returned string is not guaranteed to
+      be null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param length length of the returned string.
+      @return user portion of the URL.
+
+   */
+  tsapi const char* TSUrlUserGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the user portion of the URL located at url_loc within bufp
+      to the string value. If length is -1 then TSUrlUserSet() assumes
+      that value is null-terminated. Otherwise, the length of the string
+      value is taken to be length. TSUrlUserSet() copies the string to
+      within bufp, so it is OK to modify or delete value after calling
+      TSUrlUserSet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL whose user is to be set.
+      @param value holds the new user name.
+      @param length string length of value.
+
+   */
+  tsapi TSReturnCode TSUrlUserSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /**
+      Retrieves the password portion of the URL located at url_loc
+      within bufp. TSUrlPasswordGet() places the length of the returned
+      string in the length argument. Note: the returned string is
+      not guaranteed to be null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset
+      @param length of the returned password string.
+      @return password portion of the URL.
+
+   */
+  tsapi const char* TSUrlPasswordGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the password portion of the URL located at url_loc within
+      bufp to the string value. If length is -1 then TSUrlPasswordSet()
+      assumes that value is null-terminated. Otherwise, the length
+      of value is taken to be length. TSUrlPasswordSet() copies the
+      string to within bufp, so it is okay to modify or delete value
+      after calling TSUrlPasswordSet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset
+      @param value new password.
+      @param length of the new password.
+
+   */
+  tsapi TSReturnCode TSUrlPasswordSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /**
+      Retrieves the host portion of the URL located at url_loc
+      within bufp. Note: the returned string is not guaranteed to be
+      null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param length of the returned string.
+      @return Host portion of the URL.
+
+   */
+  tsapi const char* TSUrlHostGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the host portion of the URL at url_loc to the string value.
+      If length is -1 then TSUrlHostSet() assumes that value is
+      null-terminated. Otherwise, the length of the string value is
+      taken to be length. The string is copied to within bufp, so you
+      can modify or delete value after calling TSUrlHostSet().
+
+      @param bufp marshal buffer containing the URL to modify.
+      @param offset location of the URL.
+      @param value new host name for the URL.
+      @param length string length of the new host name of the URL.
+
+   */
+  tsapi TSReturnCode TSUrlHostSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /**
+      Retrieves the port portion of the URL located at url_loc.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @return port portion of the URL.
+
+   */
+  tsapi int TSUrlPortGet(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Sets the port portion of the URL located at url_loc.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param port new port setting for the URL.
+
+   */
+  tsapi TSReturnCode TSUrlPortSet(TSMBuffer bufp, TSMLoc offset, int port);
+
+  /* --------------------------------------------------------------------------
+     HTTP specific URLs */
+  /**
+      Retrieves the path portion of the URL located at url_loc within
+      bufp. TSUrlPathGet() places the length of the returned string in
+      the length argument. Note: the returned string is not guaranteed to
+      be null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param length of the returned string.
+      @return path portion of the URL.
+
+   */
+  tsapi const char* TSUrlPathGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the path portion of the URL located at url_loc within bufp
+      to the string value. If length is -1 then TSUrlPathSet() assumes
+      that value is null-terminated. Otherwise, the length of the value
+      is taken to be length. TSUrlPathSet() copies the string into bufp,
+      so you can modify or delete value after calling TSUrlPathSet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param value new path string for the URL.
+      @param length of the new path string.
+
+   */
+  tsapi TSReturnCode TSUrlPathSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /* --------------------------------------------------------------------------
+     FTP specific URLs */
+  /**
+      Retrieves the FTP type of the URL located at url_loc within bufp.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @return FTP type of the URL.
+
+   */
+  tsapi int TSUrlFtpTypeGet(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Sets the FTP type portion of the URL located at url_loc within
+      bufp to the value type.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL to modify.
+      @param type new FTP type for the URL.
+
+   */
+  tsapi TSReturnCode TSUrlFtpTypeSet(TSMBuffer bufp, TSMLoc offset, int type);
+
+  /* --------------------------------------------------------------------------
+     HTTP specific URLs */
+  /**
+      Retrieves the HTTP params portion of the URL located at url_loc
+      within bufp. The length of the returned string is in the length
+      argument. Note: the returned string is not guaranteed to be
+      null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param length of the returned string.
+      @return HTTP params portion of the URL.
+
+   */
+  tsapi const char* TSUrlHttpParamsGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the HTTP params portion of the URL located at url_loc within
+      bufp to the string value. If length is -1 that TSUrlHttpParamsSet()
+      assumes that value is null-terminated. Otherwise, the length of
+      the string value is taken to be length. TSUrlHttpParamsSet()
+      copies the string to within bufp, so you can modify or delete
+      value after calling TSUrlHttpParamsSet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param value HTTP params string to set in the URL.
+      @param length string length of the new HTTP params value.
+
+   */
+  tsapi TSReturnCode TSUrlHttpParamsSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /**
+      Retrieves the HTTP query portion of the URL located at url_loc
+      within bufp. The length of the returned string is in the length
+      argument. Note: the returned string is not guaranteed to be
+      null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param length of the returned string.
+      @return HTTP query portion of the URL.
+
+   */
+  tsapi const char* TSUrlHttpQueryGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the HTTP query portion of the URL located at url_loc within
+      bufp to value. If length is -1, the string value is assumed to
+      be null-terminated; otherwise, the length of value is taken to be
+      length. TSUrlHttpQuerySet() copies the string to within bufp, so
+      you can modify or delete value after calling TSUrlHttpQuerySet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL within bufp.
+      @param value new HTTP query string for the URL.
+      @param length of the new HTTP query string.
+
+   */
+  tsapi TSReturnCode TSUrlHttpQuerySet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /**
+      Retrieves the HTTP fragment portion of the URL located at url_loc
+      within bufp. The length of the returned string is in the length
+      argument. Note: the returned string is not guaranteed to be
+      null-terminated.
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL.
+      @param length of the returned string.
+      @return HTTP fragment portion of the URL.
+
+   */
+  tsapi const char* TSUrlHttpFragmentGet(TSMBuffer bufp, TSMLoc offset, int* length);
+
+  /**
+      Sets the HTTP fragment portion of the URL located at url_loc
+      within bufp to value. If length is -1, the string value is
+      assumed to be null-terminated; otherwise, the length of value
+      is taken to be length. TSUrlHttpFragmentSet() copies the string
+      to within bufp, so you can modify or delete value after calling
+      TSUrlHttpFragmentSet().
+
+      @param bufp marshal buffer containing the URL.
+      @param offset location of the URL within bufp.
+      @param value new HTTP fragment string for the URL.
+      @param length of the new HTTP query string.
+
+   */
+  tsapi TSReturnCode TSUrlHttpFragmentSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+
+  /**
+     Perform percent-encoding of the string in the buffer, storing the
+     new string in the destination buffer. The length parameter will be
+     set to the new (encoded) string length, or 0 if the encoding failed.
+
+     @param str the string buffer to encode.
+     @param str_len length of the string buffer.
+     @param dst destination buffer.
+     @param dst_size size of the destination buffer.
+     @param length amount of data written to the destination buffer.
+     @param map optional (can be NULL) map of characters to encode.
+
+  */
+  tsapi TSReturnCode TSStringPercentEncode(const char *str, int str_len, char *dst, size_t dst_size, size_t *length, const unsigned char *map);
+
+  /**
+     Similar to TSStringPercentEncode(), but works on a URL object.
+
+     @param bufp marshal buffer containing the URL.
+     @param offset location of the URL within bufp.
+     @param dst destination buffer.
+     @param dst_size size of the destination buffer.
+     @param length amount of data written to the destination buffer.
+     @param map optional (can be NULL) map of characters to encode.
+
+  */
+  tsapi TSReturnCode TSUrlPercentEncode(TSMBuffer bufp, TSMLoc offset, char *dst, size_t dst_size, size_t *length, const unsigned char *map);
+
+  /**
+     Perform percent-decoding of the string in the buffer, writing
+     to the output buffer. The source and destination can be the same,
+     in which case they overwrite. The decoded string is always
+     guaranteed to be no longer than the source string.
+
+     @param str the string to decode (and possibly write to).
+     @param str_len length of the input string (or 0).
+     @param dst output buffer (can be the same as src).
+     @param dst_len size of the output buffer.
+     @param length amount of data written to the destination buffer.
+
+  */
+  tsapi TSReturnCode TSStringPercentDecode(const char *str, size_t str_len, char *dst, size_t dst_size, size_t *length);
+
+
+
+  /* --------------------------------------------------------------------------
+     MIME headers */
+
+  /**
+      Creates a MIME parser. The parser's data structure contains
+      information about the header being parsed. A single MIME
+      parser can be used multiple times, though not simultaneously.
+      Before being used again, the parser must be cleared by calling
+      TSMimeParserClear().
+
+   */
+  tsapi TSMimeParser TSMimeParserCreate(void);
+
+  /**
+      Clears the specified MIME parser so that it can be used again.
+
+      @param parser to be cleared.
+
+   */
+  tsapi void TSMimeParserClear(TSMimeParser parser);
+
+  /**
+      Destroys the specified MIME parser and frees the associated memory.
+
+      @param parser to destroy.
+   */
+  tsapi void TSMimeParserDestroy(TSMimeParser parser);
+
+  /**
+      Creates a new MIME header within bufp. Release with a call to
+      TSHandleMLocRelease().
+
+      @param bufp marshal buffer to contain the new MIME header.
+      @param locp buffer pointer to contain the MLoc
+
+   */
+  tsapi TSReturnCode TSMimeHdrCreate(TSMBuffer bufp, TSMLoc* locp);
+
+  /**
+      Destroys the MIME header located at hdr_loc within bufp.
+
+      @param bufp marshal buffer containing the MIME header to destroy.
+      @param offset location of the MIME header.
+
+   */
+  tsapi TSReturnCode TSMimeHdrDestroy(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Copies a specified MIME header to a specified marshal buffer,
+      and returns the location of the copied MIME header within the
+      destination marshal buffer. Unlike TSMimeHdrCopy(), you do not
+      have to create the destination MIME header before cloning. Release
+      the returned TSMLoc handle with a call to TSHandleMLocRelease().
+
+      @param dest_bufp destination marshal buffer.
+      @param src_bufp source marshal buffer.
+      @param src_hdr location of the source MIME header.
+      @param locp where to store the location of the copied MIME header.
+
+   */
+  tsapi TSReturnCode TSMimeHdrClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc* locp);
+
+  /**
+      Copies the contents of the MIME header located at src_loc
+      within src_bufp to the MIME header located at dest_loc within
+      dest_bufp. TSMimeHdrCopy() works correctly even if src_bufp and
+      dest_bufp point to different marshal buffers. Important: you must
+      create the destination MIME header before copying into it--use
+      TSMimeHdrCreate().
+
+      @param dest_bufp is the destination marshal buffer.
+      @param dest_offset
+      @param src_bufp is the source marshal buffer.
+      @param src_offset
+
+   */
+  tsapi TSReturnCode TSMimeHdrCopy(TSMBuffer dest_bufp, TSMLoc dest_offset, TSMBuffer src_bufp,
+                                      TSMLoc src_offset);
+
+  /**
+      Formats the MIME header located at hdr_loc within bufp into the
+      TSIOBuffer iobufp.
+
+      @param bufp marshal buffer containing the header to be copied to
+        an TSIOBuffer.
+      @param offset
+      @param iobufp target TSIOBuffer.
+
+   */
+  tsapi void TSMimeHdrPrint(TSMBuffer bufp, TSMLoc offset, TSIOBuffer iobufp);
+
+  /**
+      Parses a MIME header. The MIME header must have already been
+      allocated and both bufp and hdr_loc must point within that header.
+      It is possible to parse a MIME header a single byte at a time
+      using repeated calls to TSMimeHdrParse(). As long as an error
+      does not occur, TSMimeHdrParse() consumes each single byte and
+      asks for more.
+
+      @param parser parses the specified MIME header.
+      @param bufp marshal buffer containing the MIME header to be parsed.
+      @param offset
+      @param start both an input and output. On input, the start
+        argument points to the current position of the buffer being
+        parsed. On return, start is modified to point past the last
+        character parsed.
+      @param end points to one byte after the end of the buffer.
+      @return One of 3 possible int values:
+        - TS_PARSE_ERROR if there is a parsing error.
+        - TS_PARSE_DONE is returned when a "\r\n\r\n" pattern is
+          encountered, indicating the end of the header.
+        - TS_PARSE_CONT is returned if parsing of the header stopped
+          because the end of the buffer was reached.
+
+   */
+  tsapi TSParseResult TSMimeHdrParse(TSMimeParser parser, TSMBuffer bufp, TSMLoc offset, const char** start,
+                                     const char* end);
+
+  /**
+      Calculates the length of the MIME header located at hdr_loc if it
+      were returned as a string. This the length of the MIME header in
+      its unparsed form.
+
+      @param bufp marshal buffer containing the MIME header.
+      @param offset location of the MIME header.
+      @return string length of the MIME header located at hdr_loc.
+
+   */
+  tsapi int TSMimeHdrLengthGet(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Removes and destroys all the MIME fields within the MIME header
+      located at hdr_loc within the marshal buffer bufp.
+
+      @param bufp marshal buffer containing the MIME header.
+      @param offset location of the MIME header.
+
+   */
+  tsapi TSReturnCode TSMimeHdrFieldsClear(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Returns a count of the number of MIME fields within the MIME header
+      located at hdr_loc within the marshal buffer bufp.
+
+      @param bufp marshal buffer containing the MIME header.
+      @param offset location of the MIME header within bufp.
+      @return number of MIME fields within the MIME header located
+        at hdr_loc.
+
+   */
+  tsapi int TSMimeHdrFieldsCount(TSMBuffer bufp, TSMLoc offset);
+
+  /**
+      Retrieves the location of a specified MIME field within the
+      MIME header located at hdr_loc within bufp. The idx parameter
+      specifies which field to retrieve. The fields are numbered from 0
+      to TSMimeHdrFieldsCount(bufp, hdr_loc) - 1. If idx does not lie
+      within that range then TSMimeHdrFieldGet returns 0. Release the
+      returned handle with a call to TSHandleMLocRelease.
+
+      @param bufp marshal buffer containing the MIME header.
+      @param hdr location of the MIME header.
+      @param idx index of the field to get with base at 0.
+      @return location of the specified MIME field.
+
+   */
+  tsapi TSMLoc TSMimeHdrFieldGet(TSMBuffer bufp, TSMLoc hdr, int idx);
+
+  /**
+      Retrieves the TSMLoc location of a specified MIME field from within
+      the MIME header located at hdr. The name and length parameters
+      specify which field to retrieve. For each MIME field in the MIME
+      header, a case insensitive string comparison is done between
+      the field name and name. If TSMimeHdrFieldFind() cannot find the
+      requested field, it returns TS_NULL_MLOC. Release the returned
+      TSMLoc handle with a call to TSHandleMLocRelease().
+
+      @param bufp marshal buffer containing the MIME header field to find.
+      @param hdr location of the MIME header containing the field.
+      @param name of the field to retrieve.
+      @param length string length of the string name. If length is -1,
+        then name is assumed to be null-terminated.
+      @return location of the requested MIME field. If the field could
+        not be found, returns TS_NULL_MLOC.
+
+   */
+  tsapi TSMLoc TSMimeHdrFieldFind(TSMBuffer bufp, TSMLoc hdr, const char* name, int length);
+
+  /**
+      Returns the TSMLoc location of a specified MIME field from within
+      the MIME header located at hdr. The retrieved_str parameter
+      specifies which field to retrieve. For each MIME field in the
+      MIME header, a pointer comparison is done between the field name
+      and retrieved_str. This is a much quicker retrieval function
+      than TSMimeHdrFieldFind() since it obviates the need for a
+      string comparison. However, retrieved_str must be one of the
+      predefined field names of the form TS_MIME_FIELD_XXX for the
+      call to succeed. Release the returned TSMLoc handle with a call
+      to TSHandleMLocRelease().
+
+      @param bufp marshal buffer containing the MIME field.
+      @param hdr location of the MIME header containing the field.
+      @param retrieved_str specifies the field to retrieve. Must be
+        one of the predefined field names of the form TS_MIME_FIELD_XXX.
+      @return location of the requested MIME field. If the requested
+        field cannot be found, returns 0.
+
+   */
+  tsapi TSReturnCode TSMimeHdrFieldAppend(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+
+  /**
+      Removes the MIME field located at field within bufp from the
+      header located at hdr within bufp. If the specified field cannot
+      be found in the list of fields associated with the header then
+      nothing is done.
+
+      Note: removing the field does not destroy the field, it only
+      detaches the field, hiding it from the printed output. The field
+      can be reattached with a call to TSMimeHdrFieldAppend(). If you
+      do not use the detached field you should destroy it with a call to
+      TSMimeHdrFieldDestroy() and release the handle field with a call
+      to TSHandleMLocRelease().
+
+      @param bufp contains the MIME field to remove.
+      @param hdr location of the header containing the MIME field to
+        be removed. This header could be an HTTP header or MIME header.
+      @param field is the location of the field to remove.
+
+   */
+  tsapi TSReturnCode TSMimeHdrFieldRemove(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+
+  tsapi TSReturnCode TSMimeHdrFieldCreate(TSMBuffer bufp, TSMLoc hdr, TSMLoc* locp);
+
+  /****************************************************************************
+   *  Create a new field and assign it a name all in one call
+   ****************************************************************************/
+  tsapi TSReturnCode TSMimeHdrFieldCreateNamed(TSMBuffer bufp, TSMLoc mh_mloc, const char* name, int name_len, TSMLoc* locp);
+
+  /**
+      Destroys the MIME field located at field within bufp. You must
+      release the TSMLoc field with a call to TSHandleMLocRelease().
+
+      @param bufp contains the MIME field to be destroyed.
+      @param hdr location of the parent header containing the field
+        to be destroyed. This could be the location of a MIME header or
+        HTTP header.
+      @param field location of the field to be destroyed.
+
+   */
+  tsapi TSReturnCode TSMimeHdrFieldDestroy(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+
+  tsapi TSReturnCode TSMimeHdrFieldClone(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMBuffer src_bufp, TSMLoc src_hdr,
+                                         TSMLoc src_field, TSMLoc* locp);
+  tsapi TSReturnCode TSMimeHdrFieldCopy(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMLoc dest_field,
+                                        TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field);
+  tsapi TSReturnCode TSMimeHdrFieldCopyValues(TSMBuffer dest_bufp, TSMLoc dest_hdr, TSMLoc dest_field,
+                                              TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc src_field);
+  tsapi TSMLoc TSMimeHdrFieldNext(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+  tsapi TSMLoc TSMimeHdrFieldNextDup(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+  tsapi int TSMimeHdrFieldLengthGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+  tsapi const char* TSMimeHdrFieldNameGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int* length);
+  tsapi TSReturnCode TSMimeHdrFieldNameSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, const char* name, int length);
+
+  tsapi TSReturnCode TSMimeHdrFieldValuesClear(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+  tsapi int TSMimeHdrFieldValuesCount(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+
+  tsapi const char* TSMimeHdrFieldValueStringGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int* value_len_ptr);
+  tsapi int TSMimeHdrFieldValueIntGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx);
+  tsapi int64_t TSMimeHdrFieldValueInt64Get(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx);
+  tsapi unsigned int TSMimeHdrFieldValueUintGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx);
+  tsapi time_t TSMimeHdrFieldValueDateGet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field);
+  tsapi TSReturnCode TSMimeHdrFieldValueStringSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx,
+                                                     const char* value, int length);
+  tsapi TSReturnCode TSMimeHdrFieldValueIntSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int value);
+  tsapi TSReturnCode TSMimeHdrFieldValueInt64Set(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int64_t value);
+  tsapi TSReturnCode TSMimeHdrFieldValueUintSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx,
+                                                   unsigned int value);
+  tsapi TSReturnCode TSMimeHdrFieldValueDateSet(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, time_t value);
+
+  tsapi TSReturnCode TSMimeHdrFieldValueAppend(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx,
+                                                  const char* value, int length);
+  /* These Insert() APIs should be considered. Use the corresponding Set() API instead */
+  tsapi TSReturnCode TSMimeHdrFieldValueStringInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx,
+                                                        const char* value, int length);
+  tsapi TSReturnCode TSMimeHdrFieldValueIntInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx, int value);
+  tsapi TSReturnCode TSMimeHdrFieldValueUintInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx,
+                                                      unsigned int value);
+  tsapi TSReturnCode TSMimeHdrFieldValueDateInsert(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, time_t value);
+
+  tsapi TSReturnCode TSMimeHdrFieldValueDelete(TSMBuffer bufp, TSMLoc hdr, TSMLoc field, int idx);
+
+  /* --------------------------------------------------------------------------
+     HTTP headers */
+  tsapi TSHttpParser TSHttpParserCreate(void);
+  tsapi void TSHttpParserClear(TSHttpParser parser);
+  tsapi void TSHttpParserDestroy(TSHttpParser parser);
+
+  /**
+      Parses an HTTP request header. The HTTP header must have already
+      been created, and must reside inside the marshal buffer bufp.
+      The start argument points to the current position of the string
+      buffer being parsed. The end argument points to one byte after the
+      end of the buffer to be parsed. On return, TSHttpHdrParseReq()
+      modifies start to point past the last character parsed.
+
+      It is possible to parse an HTTP request header a single byte at
+      a time using repeated calls to TSHttpHdrParseReq(). As long as
+      an error does not occur, the TSHttpHdrParseReq() function will
+      consume that single byte and ask for more.
+
+      @param parser parses the HTTP header.
+      @param bufp marshal buffer containing the HTTP header to be parsed.
+      @param offset location of the HTTP header within bufp.
+      @param start both an input and output. On input, it points to the
+        current position of the string buffer being parsed. On return,
+        start is modified to point past the last character parsed.
+      @param end points to one byte after the end of the buffer to be parsed.
+      @return status of the parse:
+        - TS_PARSE_ERROR means there was a parsing error.
+        - TS_PARSE_DONE means that the end of the header was reached
+          (the parser encountered a "\r\n\r\n" pattern).
+        - TS_PARSE_CONT means that parsing of the header stopped because
+          the parser reached the end of the buffer (large headers can
+          span multiple buffers).
+
+   */
+  tsapi TSParseResult TSHttpHdrParseReq(TSHttpParser parser, TSMBuffer bufp, TSMLoc offset, const char** start, const char* end);
+
+  tsapi TSParseResult TSHttpHdrParseResp(TSHttpParser parser, TSMBuffer bufp, TSMLoc offset, const char** start, const char* end);
+
+  tsapi TSMLoc TSHttpHdrCreate(TSMBuffer bufp);
+
+  /**
+      Destroys the HTTP header located at hdr_loc within the marshal
+      buffer bufp. Do not forget to release the handle hdr_loc with a
+      call to TSHandleMLocRelease().
+
+   */
+  tsapi void TSHttpHdrDestroy(TSMBuffer bufp, TSMLoc offset);
+
+  tsapi TSReturnCode TSHttpHdrClone(TSMBuffer dest_bufp, TSMBuffer src_bufp, TSMLoc src_hdr, TSMLoc* locp);
+
+  /**
+      Copies the contents of the HTTP header located at src_loc within
+      src_bufp to the HTTP header located at dest_loc within dest_bufp.
+      TSHttpHdrCopy() works correctly even if src_bufp and dest_bufp
+      point to different marshal buffers. Make sure that you create the
+      destination HTTP header before copying into it.
+
+      Note: TSHttpHdrCopy() appends the port number to the domain
+      of the URL portion of the header. For example, a copy of
+      http://www.example.com appears as http://www.example.com:80 in
+      the destination buffer.
+
+      @param dest_bufp marshal buffer to contain the copied header.
+      @param dest_offset location of the copied header.
+      @param src_bufp marshal buffer containing the source header.
+      @param src_offset location of the source header.
+
+   */
+  tsapi TSReturnCode TSHttpHdrCopy(TSMBuffer dest_bufp, TSMLoc dest_offset, TSMBuffer src_bufp,
+                                   TSMLoc src_offset);
+
+  tsapi void TSHttpHdrPrint(TSMBuffer bufp, TSMLoc offset, TSIOBuffer iobufp);
+
+  tsapi int TSHttpHdrLengthGet(TSMBuffer bufp, TSMLoc offset);
+
+  tsapi TSHttpType TSHttpHdrTypeGet(TSMBuffer bufp, TSMLoc offset);
+  tsapi TSReturnCode TSHttpHdrTypeSet(TSMBuffer bufp, TSMLoc offset, TSHttpType type);
+
+  tsapi int TSHttpHdrVersionGet(TSMBuffer bufp, TSMLoc offset);
+  tsapi TSReturnCode TSHttpHdrVersionSet(TSMBuffer bufp, TSMLoc offset, int ver);
+
+  tsapi const char* TSHttpHdrMethodGet(TSMBuffer bufp, TSMLoc offset, int* length);
+  tsapi TSReturnCode TSHttpHdrMethodSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+  tsapi TSReturnCode TSHttpHdrUrlGet(TSMBuffer bufp, TSMLoc offset, TSMLoc* locp);
+  tsapi TSReturnCode TSHttpHdrUrlSet(TSMBuffer bufp, TSMLoc offset, TSMLoc url);
+
+  tsapi TSHttpStatus TSHttpHdrStatusGet(TSMBuffer bufp, TSMLoc offset);
+  tsapi TSReturnCode TSHttpHdrStatusSet(TSMBuffer bufp, TSMLoc offset, TSHttpStatus status);
+  tsapi const char* TSHttpHdrReasonGet(TSMBuffer bufp, TSMLoc offset, int* length);
+  tsapi TSReturnCode TSHttpHdrReasonSet(TSMBuffer bufp, TSMLoc offset, const char* value, int length);
+  tsapi const char* TSHttpHdrReasonLookup(TSHttpStatus status);
+
+  /* --------------------------------------------------------------------------
+     Threads */
+  tsapi TSThread TSThreadCreate(TSThreadFunc func, void* data);
+  tsapi TSThread TSThreadInit(void);
+  tsapi void TSThreadDestroy(TSThread thread);
+  tsapi TSThread TSThreadSelf(void);
+
+  /* --------------------------------------------------------------------------
+     Mutexes */
+  tsapi TSMutex TSMutexCreate(void);
+  tsapi void TSMutexLock(TSMutex mutexp);
+  tsapi TSReturnCode TSMutexLockTry(TSMutex mutexp);
+
+  tsapi void TSMutexUnlock(TSMutex mutexp);
+
+  /* --------------------------------------------------------------------------
+     cachekey */
+  /**
+      Creates (allocates memory for) a new cache key.
+   */
+  tsapi TSCacheKey TSCacheKeyCreate(void);
+
+  /**
+      Generates a key for an object to be cached (written to the cache).
+
+      @param key to be associated with the cached object. Before
+        calling TSCacheKeySetDigest() you must create the key with
+        TSCacheKeyCreate().
+      @param input string that uniquely identifies the object. In most
+        cases, it is the URL of the object.
+      @param length of the string input.
+
+   */
+  tsapi TSReturnCode TSCacheKeyDigestSet(TSCacheKey key, const char* input, int length);
+
+  tsapi TSReturnCode TSCacheKeyDigestFromUrlSet(TSCacheKey key, TSMLoc url);
+
+  /**
+      Associates a host name to the cache key. Use this function if the
+      cache has been partitioned by hostname. The hostname tells the
+      cache which volume to use for the object.
+
+      @param key of the cached object.
+      @param hostname to associate with the cache key.
+      @param host_len length of the string hostname.
+
+   */
+  tsapi TSReturnCode TSCacheKeyHostNameSet(TSCacheKey key, const char* hostname, int host_len);
+
+  tsapi TSReturnCode TSCacheKeyPinnedSet(TSCacheKey key, time_t pin_in_cache);
+
+  /**
+      Destroys a cache key. You must destroy cache keys when you are
+      finished with them, i.e. after all reads and writes are completed.
+
+      @param key to be destroyed.
+
+   */
+  tsapi TSReturnCode TSCacheKeyDestroy(TSCacheKey key);
+
+  /* --------------------------------------------------------------------------
+     cache url */
+  tsapi TSReturnCode TSCacheUrlSet(TSHttpTxn txnp, const char* url, int length);
+
+  /* --------------------------------------------------------------------------
+     Configuration */
+  tsapi unsigned int TSConfigSet(unsigned int id, void* data, TSConfigDestroyFunc funcp);
+  tsapi TSConfig TSConfigGet(unsigned int id);
+  tsapi void TSConfigRelease(unsigned int id, TSConfig configp);
+  tsapi void* TSConfigDataGet(TSConfig configp);
+
+  /* --------------------------------------------------------------------------
+     Management */
+  tsapi void TSMgmtUpdateRegister(TSCont contp, const char *plugin_name);
+  tsapi TSReturnCode TSMgmtIntGet(const char* var_name, TSMgmtInt* result);
+  tsapi TSReturnCode TSMgmtCounterGet(const char* var_name, TSMgmtCounter* result);
+  tsapi TSReturnCode TSMgmtFloatGet(const char* var_name, TSMgmtFloat* result);
+  tsapi TSReturnCode TSMgmtStringGet(const char* var_name, TSMgmtString* result);
+
+  /* --------------------------------------------------------------------------
+     Continuations */
+  tsapi TSCont TSContCreate(TSEventFunc funcp, TSMutex mutexp);
+  tsapi void TSContDestroy(TSCont contp);
+  tsapi void TSContDataSet(TSCont contp, void* data);
+  tsapi void* TSContDataGet(TSCont contp);
+  tsapi TSAction TSContSchedule(TSCont contp, TSHRTime timeout, TSThreadPool tp);
+  tsapi TSAction TSContScheduleEvery(TSCont contp, TSHRTime every /* millisecs */, TSThreadPool tp);
+  tsapi TSAction TSHttpSchedule(TSCont contp, TSHttpTxn txnp, TSHRTime timeout);
+  tsapi int TSContCall(TSCont contp, TSEvent event, void* edata);
+  tsapi TSMutex TSContMutexGet(TSCont contp);
+
+  /* --------------------------------------------------------------------------
+     Plugin lifecycle  hooks */
+  tsapi void TSLifecycleHookAdd(TSLifecycleHookID id, TSCont contp);
+  /* --------------------------------------------------------------------------
+     HTTP hooks */
+  tsapi void TSHttpHookAdd(TSHttpHookID id, TSCont contp);
+
+  /* --------------------------------------------------------------------------
+     HTTP sessions */
+  tsapi void TSHttpSsnHookAdd(TSHttpSsn ssnp, TSHttpHookID id, TSCont contp);
+  tsapi void TSHttpSsnReenable(TSHttpSsn ssnp, TSEvent event);
+  tsapi int TSHttpSsnTransactionCount(TSHttpSsn ssnp);
+
+  /* --------------------------------------------------------------------------
+     HTTP transactions */
+  tsapi void TSHttpTxnHookAdd(TSHttpTxn txnp, TSHttpHookID id, TSCont contp);
+  tsapi TSHttpSsn TSHttpTxnSsnGet(TSHttpTxn txnp);
+
+  /* Gets the client request header for a specified HTTP transaction. */
+  tsapi TSReturnCode TSHttpTxnClientReqGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+  /* Gets the client response header for a specified HTTP transaction. */
+  tsapi TSReturnCode TSHttpTxnClientRespGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+  /* Gets the server request header from a specified HTTP transaction. */
+  tsapi TSReturnCode TSHttpTxnServerReqGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+  /* Gets the server response header from a specified HTTP transaction. */
+  tsapi TSReturnCode TSHttpTxnServerRespGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+  /* Gets the cached request header for a specified HTTP transaction. */
+  tsapi TSReturnCode TSHttpTxnCachedReqGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+  /* Gets the cached response header for a specified HTTP transaction. */
+  tsapi TSReturnCode TSHttpTxnCachedRespGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+
+  tsapi TSReturnCode TSHttpTxnPristineUrlGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* url_loc);
+
+  /** Get the effective URL for the transaction.
+      The effective URL is the URL taking in to account both the explicit
+      URL in the request and the HOST field.
+
+      A possibly non-null terminated string is returned.
+
+      @note The returned string is allocated and must be freed by the caller
+      after use with @c TSfree.
+  */
+  tsapi char* TSHttpTxnEffectiveUrlStringGet(TSHttpTxn txnp,
+                                             int* length /**< String length return, may be @c NULL. */
+                                             );
+
+  tsapi void TSHttpTxnRespCacheableSet(TSHttpTxn txnp, int flag);
+  tsapi void TSHttpTxnReqCacheableSet(TSHttpTxn txnp, int flag);
+
+  /** Set flag indicating whether or not to cache the server response for
+      given TSHttpTxn
+
+      @note This should be done in the HTTP_READ_RESPONSE_HDR_HOOK or earlier.
+
+      @note If TSHttpTxnRespCacheableSet() is not working the way you expect,
+      this may be the function you should use instead.
+
+      @param txnp The transaction whose server response you do not want to store.
+      @param flag Set 0 to allow storing and 1 to disable storing.
+
+      @return TS_SUCCESS.
+  */
+  tsapi TSReturnCode TSHttpTxnServerRespNoStoreSet(TSHttpTxn txnp, int flag);
+
+  tsapi TSReturnCode TSFetchPageRespGet (TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+  tsapi char* TSFetchRespGet(TSHttpTxn txnp, int* length);
+  tsapi TSReturnCode TSHttpTxnCacheLookupStatusGet(TSHttpTxn txnp, int* lookup_status);
+
+  tsapi TSReturnCode TSHttpTxnTransformRespGet(TSHttpTxn txnp, TSMBuffer* bufp, TSMLoc* offset);
+
+  tsapi void TSHttpTxnClientIncomingPortSet(TSHttpTxn txnp, int port);
+
+  /** Get SSL object of this session.
+      Retrieves the SSL object of the SSL connection.
+
+      @return SSL object of this session
+   */
+  tsapi void* TSHttpSsnSSLConnectionGet(TSHttpSsn ssnp); //returns SSL *
+
+  /** Get client address for transaction @a txnp.
+      Retrieves the socket address of the remote client that has
+      connected to Traffic Server for transaction @a txnp. The
+      return structure is the generic socket address storage in
+      order to be address-family agnostic. The user of this function
+      can then go on to do the appropriate thing with the type
+      specified in the ss_family field of the structure whether
+      that be for IPv4, IPv6, or any other address family.
+
+      @return Client address for connection to client in transaction @a txnp.
+
+   */
+  tsapi struct sockaddr const* TSHttpTxnClientAddrGet(TSHttpTxn txnp);
+  /** Get the incoming address.
+
+      @note The pointer is valid only for the current callback. Clients
+      that need to keep the value across callbacks must maintain their
+      own storage.
+
+      @return Local address of the client connection for transaction @a txnp.
+  */
+  tsapi struct sockaddr const* TSHttpTxnIncomingAddrGet(TSHttpTxn txnp);
+  /** Get the origin server address.
+   *
+      @note The pointer is valid only for the current callback. Clients
+      that need to keep the value across callbacks must maintain their
+      own storage.
+
+      @return The address of the origin server for transaction @a txnp.
+  */
+  tsapi struct sockaddr const* TSHttpTxnServerAddrGet(TSHttpTxn txnp);
+  /** Set the origin server address.
+
+      This must be invoked before the origin server address is looked up.
+      If called no lookup is done, the address @a addr is used instead.
+
+      @return @c TS_SUCCESS if the origin server address is set, @c TS_ERROR otherwise.
+  */
+  tsapi TSReturnCode TSHttpTxnServerAddrSet(TSHttpTxn txnp,
+                                            struct sockaddr const* addr /**< Address for origin server. */
+                                            );
+
+  /** Get the next hop address.
+   *
+      @note The pointer is valid only for the current callback. Clients
+      that need to keep the value across callbacks must maintain their
+      own storage.
+
+      @return The address of the next hop for transaction @a txnp.
+  */
+  tsapi struct sockaddr const* TSHttpTxnNextHopAddrGet(TSHttpTxn txnp);
+
+  tsapi TSReturnCode TSHttpTxnClientFdGet(TSHttpTxn txnp, int* fdp);
+  tsapi TSReturnCode TSHttpTxnOutgoingAddrSet(TSHttpTxn txnp, struct sockaddr const* addr);
+  tsapi TSReturnCode TSHttpTxnOutgoingTransparencySet(TSHttpTxn txnp, int flag);
+
+  /* TS-1008: the above TXN calls for the Client conn should work with SSN */
+  tsapi struct sockaddr const* TSHttpSsnClientAddrGet(TSHttpSsn ssnp);
+  tsapi struct sockaddr const* TSHttpSsnIncomingAddrGet(TSHttpSsn ssnp);
+  tsapi TSReturnCode TSHttpSsnClientFdGet(TSHttpSsn ssnp, int* fdp);
+  /* TS-1008 END */
+
+  /** Change packet firewall mark for the client side connection
+   *
+      @note The change takes effect immediately
+      
+      @return TS_SUCCESS if the client connection was modified
+  */
+  tsapi TSReturnCode TSHttpTxnClientPacketMarkSet(TSHttpTxn txnp, int mark);
+  
+  /** Change packet firewall mark for the server side connection
+   *
+      @note The change takes effect immediately, if no OS connection has been
+      made, then this sets the mark that will be used IF an OS connection
+      is established
+      
+      @return TS_SUCCESS if the (future?) server connection was modified
+  */
+  tsapi TSReturnCode TSHttpTxnServerPacketMarkSet(TSHttpTxn txnp, int mark);
+  
+  /** Change packet TOS for the client side connection
+   *
+      @note The change takes effect immediately
+      
+      @note TOS is deprecated and replaced by DSCP, this is still used to
+      set DSCP however the first 2 bits of this value will be ignored as
+      they now belong to the ECN field.
+      
+      @return TS_SUCCESS if the client connection was modified
+  */
+  tsapi TSReturnCode TSHttpTxnClientPacketTosSet(TSHttpTxn txnp, int tos);
+  
+  /** Change packet TOS for the server side connection
+   *
+      
+      @note The change takes effect immediately, if no OS connection has been
+      made, then this sets the mark that will be used IF an OS connection
+      is established
+      
+      @note TOS is deprecated and replaced by DSCP, this is still used to
+      set DSCP however the first 2 bits of this value will be ignored as
+      they now belong to the ECN field.
+      
+      @return TS_SUCCESS if the (future?) server connection was modified
+  */
+  tsapi TSReturnCode TSHttpTxnServerPacketTosSet(TSHttpTxn txnp, int tos);
+
+
+  /**
+     Sets an error type body to a transaction. Note that both string arguments
+     must be allocated with TSmalloc() or TSstrdup(). The mimetype argument is
+     optional, if not provided it defaults to "text/html". Sending an emptry
+     string would prevent setting a content type header (but that is not adviced).
+
+     @param txnp HTTP transaction whose parent proxy to get.
+     @param buf The body message (must be heap allocated).
+     @param buflength Length of the body message.
+     @param mimetype The MIME type to set the response to (can be NULL, but must
+            be heap allocated if non-NULL).
+  */
+  tsapi void TSHttpTxnErrorBodySet(TSHttpTxn txnp, char* buf, size_t buflength, char* mimetype);
+
+  /**
+      Retrieves the parent proxy hostname and port, if parent
+      proxying is enabled. If parent proxying is not enabled,
+      TSHttpTxnParentProxyGet() sets hostname to NULL and port to -1.
+
+      @param txnp HTTP transaction whose parent proxy to get.
+      @param hostname of the parent proxy.
+      @param port parent proxy's port.
+
+   */
+  tsapi TSReturnCode TSHttpTxnParentProxyGet(TSHttpTxn txnp, char** hostname, int* port);
+
+  /**
+      Sets the parent proxy name and port. The string hostname is copied
+      into the TSHttpTxn; you can modify or delete the string after
+      calling TSHttpTxnParentProxySet().
+
+      @param txnp HTTP transaction whose parent proxy to set.
+      @param hostname parent proxy host name string.
+      @param port parent proxy port to set.
+
+   */
+  tsapi void TSHttpTxnParentProxySet(TSHttpTxn txnp, char* hostname, int port);
+
+  tsapi void TSHttpTxnUntransformedRespCache(TSHttpTxn txnp, int on);
+  tsapi void TSHttpTxnTransformedRespCache(TSHttpTxn txnp, int on);
+
+  /**
+      Notifies the HTTP transaction txnp that the plugin is
+      finished processing the current hook. The plugin tells the
+      transaction to either continue (TS_EVENT_HTTP_CONTINUE) or stop
+      (TS_EVENT_HTTP_ERROR).
+
+      You must always reenable the HTTP transaction after the processing
+      of each transaction event. However, never reenable twice.
+      Reenabling twice is a serious error.
+
+      @param txnp transaction to be reenabled.
+      @param event tells the transaction how to continue:
+        - TS_EVENT_HTTP_CONTINUE, which means that the transaction
+          should continue.
+        - TS_EVENT_HTTP_ERROR which terminates the transaction
+          and sends an error to the client if no response has already
+          been sent.
+
+   */
+  tsapi void TSHttpTxnReenable(TSHttpTxn txnp, TSEvent event);
+  tsapi TSReturnCode TSHttpCacheReenable(TSCacheTxn txnp, const TSEvent event, const void* data, const uint64_t size);
+
+  tsapi void TSHttpTxnArgSet(TSHttpTxn txnp, int arg_idx, void* arg);
+  tsapi void* TSHttpTxnArgGet(TSHttpTxn txnp, int arg_idx);
+  tsapi void TSHttpSsnArgSet(TSHttpSsn ssnp, int arg_idx, void* arg);
+  tsapi void* TSHttpSsnArgGet(TSHttpSsn ssnp, int arg_idx);
+
+  /* The reserve API should only be use in TSAPI plugins, during plugin initialization! */
+  /* The lookup methods can be used anytime, but are best used during initialization as well,
+     or at least "cache" the results for best performance. */
+  tsapi TSReturnCode TSHttpArgIndexReserve(const char* name, const char* description, int* arg_idx);
+  tsapi TSReturnCode TSHttpArgIndexNameLookup(const char* name, int* arg_idx, const char** description);
+  tsapi TSReturnCode TSHttpArgIndexLookup(int arg_idx, const char** name, const char** description);
+
+  /* ToDo: This is a leftover from olden days, can we eliminate? */
+  tsapi void TSHttpTxnSetHttpRetStatus(TSHttpTxn txnp, TSHttpStatus http_retstatus);
+
+  tsapi void TSHttpTxnActiveTimeoutSet(TSHttpTxn txnp, int timeout);
+  tsapi void TSHttpTxnConnectTimeoutSet(TSHttpTxn txnp, int timeout);
+  tsapi void TSHttpTxnDNSTimeoutSet(TSHttpTxn txnp, int timeout);
+  tsapi void TSHttpTxnNoActivityTimeoutSet(TSHttpTxn txnp, int timeout);
+
+  tsapi TSServerState TSHttpTxnServerStateGet(TSHttpTxn txnp);
+
+  /* --------------------------------------------------------------------------
+     Transaction specific debugging control  */
+
+  /**
+         Set the transaction specific debugging flag for this transaction.
+         When turned on, internal debug messages related to this transaction
+         will be written even if the debug tag isn't on.
+
+      @param txnp transaction to change.
+      @param on set to 1 to turn on, 0 to turn off.
+  */
+  tsapi void TSHttpTxnDebugSet(TSHttpTxn txnp, int on);
+  /**
+         Returns the transaction specific debugging flag for this transaction.
+
+      @param txnp transaction to check.
+      @return 1 if enabled, 0 otherwise.
+  */
+  tsapi int TSHttpTxnDebugGet(TSHttpTxn txnp);
+  /**
+         Set the session specific debugging flag for this client session.
+         When turned on, internal debug messages related to this session and all transactions
+         in the session will be written even if the debug tag isn't on.
+
+      @param ssnp Client session to change.
+      @param on set to 1 to turn on, 0 to turn off.
+  */
+  tsapi void TSHttpSsnDebugSet(TSHttpSsn ssnp, int on);
+  /**
+         Returns the transaction specific debugging flag for this client session.
+
+      @param txnp Client session to check.
+      @return 1 if enabled, 0 otherwise.
+  */
+  tsapi int TSHttpSsnDebugGet(TSHttpSsn ssnp, int *on);
+
+  /* --------------------------------------------------------------------------
+     Intercepting Http Transactions */
+
+  /**
+      Allows a plugin take over the servicing of the request as though
+      it was the origin server. contp will be sent TS_EVENT_NET_ACCEPT.
+      The edata passed with TS_NET_EVENT_ACCEPT is an TSVConn just as
+      it would be for a normal accept. The plugin must act as if it is
+      an http server and read the http request and body off the TSVConn
+      and send an http response header and body.
+
+      TSHttpTxnIntercept() must be called be called from only
+      TS_HTTP_READ_REQUEST_HOOK. Using TSHttpTxnIntercept will
+      bypass the Traffic Server cache. If response sent by the plugin
+      should be cached, use TSHttpTxnServerIntercept() instead.
+      TSHttpTxnIntercept() primary use is allow plugins to serve data
+      about their functioning directly.
+
+      TSHttpTxnIntercept() must only be called once per transaction.
+
+      @param contp continuation called to handle the interception.
+      @param txnp transaction to be intercepted.
+
+   */
+  tsapi void TSHttpTxnIntercept(TSCont contp, TSHttpTxn txnp);
+
+  /**
+      Allows a plugin take over the servicing of the request as though
+      it was the origin server. In the event a request needs to be
+      made to the server for transaction txnp, contp will be sent
+      TS_EVENT_NET_ACCEPT. The edata passed with TS_NET_EVENT_ACCEPT
+      is an TSVConn just as it would be for a normal accept. The plugin
+      must act as if it is an http server and read the http request and
+      body off the TSVConn and send an http response header and body.
+
+      TSHttpTxnInterceptServer() must be not be called after
+      the connection to the server has taken place. The last hook
+      last hook in that TSHttpTxnIntercept() can be called from is
+      TS_HTTP_READ_CACHE_HDR_HOOK. If a connection to the server is
+      not necessary, contp is not called.
+
+      The response from the plugin is cached subject to standard
+      and configured http caching rules. Should the plugin wish the
+      response not be cached, the plugin must use appropriate http
+      response headers to prevent caching. The primary purpose of
+      TSHttpTxnInterceptServer() is allow plugins to provide gateways
+      to other protocols or to allow to plugin to it's own transport for
+      the next hop to the server. TSHttpTxnInterceptServer() overrides
+      parent cache configuration.
+
+      TSHttpTxnInterceptServer() must only be called once per
+      transaction.
+
+      @param contp continuation called to handle the interception
+      @param txnp transaction to be intercepted.
+
+   */
+  tsapi void TSHttpTxnServerIntercept(TSCont contp, TSHttpTxn txnp);
+
+  /* --------------------------------------------------------------------------
+     Initiate Http Connection */
+
+  /**
+      Allows the plugin to initiate an http connection. The TSVConn the
+      plugin receives as the result of successful operates identically to
+      one created through TSNetConnect. Aside from allowing the plugin
+      to set the client ip and port for logging, the functionality of
+      TSHttpConnect() is identical to connecting to localhost on the
+      proxy port with TSNetConnect(). TSHttpConnect() is more efficient
+      than TSNetConnect() to localhost since it avoids the overhead of
+      passing the data through the operating system.
+
+      This returns a VConn that connected to the transaction.
+
+      @param addr Target address of the origin server.
+      @param tag A logging tag that can be accessed via the pitag field. May be @c NULL.
+      @param id A logging id that can be access via the piid field.
+   */
+  tsapi TSVConn TSHttpConnectWithPluginId(struct sockaddr const* addr, char const* tag, int64_t id);
+
+  /** Backwards compatible version.
+      This provides a @a tag of "plugin" and an @a id of 0.
+   */
+  tsapi TSVConn TSHttpConnect(struct sockaddr const* addr);
+
+    /* --------------------------------------------------------------------------
+     Initiate Transparent Http Connection */
+  /**
+      Allows the plugin to initiate a transparent http connection. This operates
+      identically to TSHttpConnect except that it is treated as an intercepted
+      transparent connection by the session and transaction state machines.
+
+      @param client_addr the address that the resulting connection will be seen as
+      	coming from
+      @param server_addr the address that the resulting connection will be seen as
+      	attempting to connect to when intercepted
+      @param vc will be set to point to the new TSVConn on success.
+
+   */
+  tsapi TSVConn TSHttpConnectTransparent(struct sockaddr const* client_addr, struct sockaddr const * server_addr);
+
+  tsapi void TSFetchUrl(const char* request,int request_len, struct sockaddr const* addr, TSCont contp, TSFetchWakeUpOptions callback_options,TSFetchEvent event);
+  tsapi void TSFetchPages(TSFetchUrlParams_t* params);
+
+  /* Check if HTTP State machine is internal or not */
+  tsapi TSReturnCode TSHttpIsInternalRequest(TSHttpTxn txnp);
+  tsapi TSReturnCode TSHttpIsInternalSession(TSHttpSsn ssnp);
+
+  /* --------------------------------------------------------------------------
+     HTTP alternate selection */
+  tsapi TSReturnCode TSHttpAltInfoClientReqGet(TSHttpAltInfo infop, TSMBuffer* bufp, TSMLoc* offset);
+  tsapi TSReturnCode TSHttpAltInfoCachedReqGet(TSHttpAltInfo infop, TSMBuffer* bufp, TSMLoc* offset);
+  tsapi TSReturnCode TSHttpAltInfoCachedRespGet(TSHttpAltInfo infop, TSMBuffer* bufp, TSMLoc* offset);
+  tsapi void TSHttpAltInfoQualitySet(TSHttpAltInfo infop, float quality);
+
+  /* --------------------------------------------------------------------------
+     Actions */
+  tsapi void TSActionCancel(TSAction actionp);
+  tsapi int TSActionDone(TSAction actionp);
+
+  /* --------------------------------------------------------------------------
+     VConnections */
+  tsapi TSVIO TSVConnReadVIOGet(TSVConn connp);
+  tsapi TSVIO TSVConnWriteVIOGet(TSVConn connp);
+  tsapi int TSVConnClosedGet(TSVConn connp);
+
+  tsapi TSVIO TSVConnRead(TSVConn connp, TSCont contp, TSIOBuffer bufp, int64_t nbytes);
+  tsapi TSVIO TSVConnWrite(TSVConn connp, TSCont contp, TSIOBufferReader readerp, int64_t nbytes);
+  tsapi void TSVConnClose(TSVConn connp);
+  tsapi void TSVConnAbort(TSVConn connp, int error);
+  tsapi void TSVConnShutdown(TSVConn connp, int read, int write);
+
+  /* --------------------------------------------------------------------------
+     Cache VConnections */
+  tsapi int64_t TSVConnCacheObjectSizeGet(TSVConn connp);
+
+  /* --------------------------------------------------------------------------
+     Transformations */
+  tsapi TSVConn TSTransformCreate(TSEventFunc event_funcp, TSHttpTxn txnp);
+  tsapi TSVConn TSTransformOutputVConnGet(TSVConn connp);
+
+  /* --------------------------------------------------------------------------
+     Net VConnections */
+
+  tsapi struct sockaddr const* TSNetVConnRemoteAddrGet(TSVConn vc);
+
+  /**
+      Opens a network connection to the host specified by ip on the port
+      specified by port. If the connection is successfully opened, contp
+      is called back with the event TS_EVENT_NET_CONNECT and the new
+      network vconnection will be passed in the event data parameter.
+      If the connection is not successful, contp is called back with
+      the event TS_EVENT_NET_CONNECT_FAILED.
+
+      Note: on Solaris, it is possible to receive TS_EVENT_NET_CONNECT
+      even if the connection failed, because of the implementation of
+      network sockets in the underlying operating system. There is an
+      exception: if a plugin tries to open a connection to a port on
+      its own host machine, then TS_EVENT_NET_CONNECT is sent only
+      if the connection is successfully opened. In general, however,
+      your plugin needs to look for an TS_EVENT_VCONN_WRITE_READY to
+      be sure that the connection is successfully opened.
+
+      @return something allows you to check if the connection is complete,
+        or cancel the attempt to connect.
+
+   */
+  tsapi TSAction TSNetConnect(TSCont contp, /**< continuation that is called back when the attempted net connection either succeeds or fails. */
+                              struct sockaddr const* to /**< Address to which to connect. */
+  );
+
+  tsapi TSAction TSNetAccept(TSCont contp, int port, int domain, int accept_threads);
+
+  /**
+    Listen on all SSL ports for connections for the specified protocol name.
+
+    TSNetAcceptNamedProtocol registers the specified protocol for all
+    statically configured TLS ports. When a client using the TLS Next Protocol
+    Negotiation extension negotiates the requested protocol, TrafficServer will
+    route the request to the given handler. Note that the protocol is not
+    registered on ports opened by other plugins.
+
+    The event and data provided to the handler are the same as for
+    TSNetAccept(). If a connection is successfully accepted, the event code
+    will be TS_EVENT_NET_ACCEPT and the event data will be a valid TSVConn
+    bound to the accepted connection.
+
+    Neither contp nor protocol are copied. They must remain valid for the
+    lifetime of the plugin.
+
+    TSNetAcceptNamedProtocol fails if the requested protocol cannot be
+    registered on all of the configured TLS ports. If it fails, the protocol
+    will not be registered on any ports (ie.. no partial failure).
+  */
+  tsapi TSReturnCode TSNetAcceptNamedProtocol(TSCont contp, const char * protocol);
+
+  /**
+    Create a new port from the string specification used by the
+    proxy.config.http.server_ports configuration value.
+   */
+  tsapi TSPortDescriptor TSPortDescriptorParse(const char * descriptor);
+
+  /**
+     Start listening on the given port descriptor. If a connection is
+     successfully accepted, the TS_EVENT_NET_ACCEPT is delivered to the
+     continuation. The event data will be a valid TSVConn bound to the accepted
+     connection.
+   */
+  tsapi TSReturnCode TSPortDescriptorAccept(TSPortDescriptor, TSCont);
+
+  /* --------------------------------------------------------------------------
+     DNS Lookups */
+  tsapi TSAction TSHostLookup(TSCont contp, const char* hostname, size_t namelen);
+  tsapi struct sockaddr const* TSHostLookupResultAddrGet(TSHostLookupResult lookup_result);
+  /* TODO: Eventually, we might want something like this as well, but it requires
+     support for building the HostDBInfo struct:
+     tsapi void TSHostLookupResultSet(TSHttpTxn txnp, TSHostLookupResult result);
+  */
+
+  /* --------------------------------------------------------------------------
+     Cache VConnections */
+  /**
+      Asks the Traffic Server cache if the object corresponding to key
+      exists in the cache and can be read. If the object can be read,
+      the Traffic Server cache calls the continuation contp back with
+      the event TS_EVENT_CACHE_OPEN_READ. In this case, the cache also
+      passes contp a cache vconnection and contp can then initiate a
+      read operation on that vconnection using TSVConnRead.
+
+      If the object cannot be read, the cache calls contp back with
+      the event TS_EVENT_CACHE_OPEN_READ_FAILED. The user (contp)
+      has the option to cancel the action returned by TSCacheRead.
+      Note that reentrant calls are possible, i.e. the cache can call
+      back the user (contp) in the same call.
+
+      @param contp continuation to be called back if a read operation
+        is permissible.
+      @param key cache key corresponding to the object to be read.
+      @return something allowing the user to cancel or schedule the
+        cache read.
+
+   */
+  tsapi TSAction TSCacheRead(TSCont contp, TSCacheKey key);
+
+  /**
+      Asks the Traffic Server cache if contp can start writing the
+      object (corresponding to key) to the cache. If the object
+      can be written, the cache calls contp back with the event
+      TS_EVENT_CACHE_OPEN_WRITE. In this case, the cache also passes
+      contp a cache vconnection and contp can then initiate a write
+      operation on that vconnection using TSVConnWrite. The object
+      is not committed to the cache until the vconnection is closed.
+      When all data has been transferred, the user (contp) must do
+      an TSVConnClose. In case of any errors, the user MUST do an
+      TSVConnAbort(contp, 0).
+
+      If the object cannot be written, the cache calls contp back with
+      the event TS_EVENT_CACHE_OPEN_WRITE_FAILED. This can happen,
+      for example, if there is another object with the same key being
+      written to the cache. The user (contp) has the option to cancel
+      the action returned by TSCacheWrite.
+
+      Note that reentrant calls are possible, i.e. the cache can call
+      back the user (contp) in the same call.
+
+      @param contp continuation that the cache calls back (telling it
+        whether the write operation can proceed or not).
+      @param key cache key corresponding to the object to be cached.
+      @return something allowing the user to cancel or schedule the
+        cache write.
+
+   */
+  tsapi TSAction TSCacheWrite(TSCont contp, TSCacheKey key);
+
+  /**
+      Removes the object corresponding to key from the cache. If the
+      object was removed successfully, the cache calls contp back
+      with the event TS_EVENT_CACHE_REMOVE. If the object was not
+      found in the cache, the cache calls contp back with the event
+      TS_EVENT_CACHE_REMOVE_FAILED.
+
+      In both of these callbacks, the user (contp) does not have to do
+      anything. The user does not get any vconnection from the cache,
+      since no data needs to be transferred. When the cache calls
+      contp back with TS_EVENT_CACHE_REMOVE, the remove has already
+      been commited.
+
+      @param contp continuation that the cache calls back reporting the
+        success or failure of the remove.
+      @param key cache key corresponding to the object to be removed.
+      @return something allowing the user to cancel or schedule the
+        remove.
+
+   */
+  tsapi TSAction TSCacheRemove(TSCont contp, TSCacheKey key);
+  tsapi TSReturnCode TSCacheReady(int* is_ready);
+  tsapi TSAction TSCacheScan(TSCont contp, TSCacheKey key, int KB_per_second);
+
+  /* --------------------------------------------------------------------------
+     VIOs */
+  tsapi void TSVIOReenable(TSVIO viop);
+  tsapi TSIOBuffer TSVIOBufferGet(TSVIO viop);
+  tsapi TSIOBufferReader TSVIOReaderGet(TSVIO viop);
+  tsapi int64_t TSVIONBytesGet(TSVIO viop);
+  tsapi void TSVIONBytesSet(TSVIO viop, int64_t nbytes);
+  tsapi int64_t TSVIONDoneGet(TSVIO viop);
+  tsapi void TSVIONDoneSet(TSVIO viop, int64_t ndone);
+  tsapi int64_t TSVIONTodoGet(TSVIO viop);
+  tsapi TSMutex TSVIOMutexGet(TSVIO viop);
+  tsapi TSCont TSVIOContGet(TSVIO viop);
+  tsapi TSVConn TSVIOVConnGet(TSVIO viop);
+
+  /* --------------------------------------------------------------------------
+     Buffers */
+  tsapi TSIOBuffer TSIOBufferCreate(void);
+
+  /**
+      Creates a new TSIOBuffer of the specified size. With this function,
+      you can create smaller buffers than the 32K buffer created by
+      TSIOBufferCreate(). In some situations using smaller buffers can
+      improve performance.
+
+      @param index size of the new TSIOBuffer to be created.
+      @param new TSIOBuffer of the specified size.
+
+   */
+  tsapi TSIOBuffer TSIOBufferSizedCreate(TSIOBufferSizeIndex index);
+
+  /**
+      The watermark of an TSIOBuffer is the minimum number of bytes
+      of data that have to be in the buffer before calling back any
+      continuation that has initiated a read operation on this buffer.
+      TSIOBufferWaterMarkGet() will provide the size of the watermark,
+      in bytes, for a specified TSIOBuffer.
+
+      @param bufp buffer whose watermark the function gets.
+
+   */
+  tsapi int64_t TSIOBufferWaterMarkGet(TSIOBuffer bufp);
+
+  /**
+      The watermark of an TSIOBuffer is the minimum number of bytes
+      of data that have to be in the buffer before calling back any
+      continuation that has initiated a read operation on this buffer.
+      As a writer feeds data into the TSIOBuffer, no readers are called
+      back until the amount of data reaches the watermark. Setting
+      a watermark can improve performance because it avoids frequent
+      callbacks to read small amounts of data. TSIOBufferWaterMarkSet()
+      assigns a watermark to a particular TSIOBuffer.
+
+      @param bufp buffer whose water mark the function sets.
+      @param water_mark watermark setting, as a number of bytes.
+
+   */
+  tsapi void TSIOBufferWaterMarkSet(TSIOBuffer bufp, int64_t water_mark);
+
+  tsapi void TSIOBufferDestroy(TSIOBuffer bufp);
+  tsapi TSIOBufferBlock TSIOBufferStart(TSIOBuffer bufp);
+  tsapi int64_t TSIOBufferCopy(TSIOBuffer bufp, TSIOBufferReader readerp, int64_t length, int64_t offset);
+
+  /**
+      Writes length bytes of data contained in the string buf to the
+      TSIOBuffer bufp. Returns the number of bytes of data successfully
+      written to the TSIOBuffer.
+
+      @param bufp is the TSIOBuffer to write into.
+      @param buf string to write into the TSIOBuffer.
+      @param length of the string buf.
+      @return length of data successfully copied into the buffer,
+        in bytes.
+
+   */
+  tsapi int64_t TSIOBufferWrite(TSIOBuffer bufp, const void* buf, int64_t length);
+  tsapi void TSIOBufferProduce(TSIOBuffer bufp, int64_t nbytes);
+
+  tsapi TSIOBufferBlock TSIOBufferBlockNext(TSIOBufferBlock blockp);
+  tsapi const char* TSIOBufferBlockReadStart(TSIOBufferBlock blockp, TSIOBufferReader readerp, int64_t* avail);
+  tsapi int64_t TSIOBufferBlockReadAvail(TSIOBufferBlock blockp, TSIOBufferReader readerp);
+  tsapi char* TSIOBufferBlockWriteStart(TSIOBufferBlock blockp, int64_t* avail);
+  tsapi int64_t TSIOBufferBlockWriteAvail(TSIOBufferBlock blockp);
+
+  tsapi TSIOBufferReader TSIOBufferReaderAlloc(TSIOBuffer bufp);
+  tsapi TSIOBufferReader TSIOBufferReaderClone(TSIOBufferReader readerp);
+  tsapi void TSIOBufferReaderFree(TSIOBufferReader readerp);
+  tsapi TSIOBufferBlock TSIOBufferReaderStart(TSIOBufferReader readerp);
+  tsapi void TSIOBufferReaderConsume(TSIOBufferReader readerp, int64_t nbytes);
+  tsapi int64_t TSIOBufferReaderAvail(TSIOBufferReader readerp);
+
+   tsapi struct sockaddr const* TSNetVConnLocalAddrGet(TSVConn vc);
+
+  /* --------------------------------------------------------------------------
+     Stats and configs based on librecords raw stats (this is preferred API until we
+     rewrite stats). This system has a limitation of up to 1,500 stats max, controlled
+     via proxy.config.stat_api.max_stats_allowed (default is 512).
+
+     This is available as of Apache TS v2.2.*/
+  typedef enum
+  {
+    TS_STAT_PERSISTENT = 1,
+    TS_STAT_NON_PERSISTENT
+  } TSStatPersistence;
+
+  typedef enum
+  {
+    TS_STAT_SYNC_SUM = 0,
+    TS_STAT_SYNC_COUNT,
+    TS_STAT_SYNC_AVG,
+    TS_STAT_SYNC_TIMEAVG
+  } TSStatSync;
+
+  /* APIs to create new records.config configurations */
+  tsapi TSReturnCode TSMgmtStringCreate(TSRecordType rec_type, const char *name, const TSMgmtString data_default,
+                                        TSRecordUpdateType update_type, TSRecordCheckType check_type,
+                                        const char *check_regex, TSRecordAccessType access_type);
+  tsapi TSReturnCode TSMgmtIntCreate(TSRecordType rec_type, const char *name, TSMgmtInt data_default,
+                                     TSRecordUpdateType update_type, TSRecordCheckType check_type,
+                                     const char *check_regex, TSRecordAccessType access_type);
+
+  /*  Note that only TS_RECORDDATATYPE_INT is supported at this point. */
+  tsapi int TSStatCreate(const char* the_name, TSRecordDataType the_type, TSStatPersistence persist, TSStatSync sync);
+
+  tsapi void TSStatIntIncrement(int the_stat, TSMgmtInt amount);
+  tsapi void TSStatIntDecrement(int the_stat, TSMgmtInt amount);
+  /* Currently not supported. */
+  /* tsapi void TSStatFloatIncrement(int the_stat, float amount); */
+  /* tsapi void TSStatFloatDecrement(int the_stat, float amount); */
+
+  tsapi TSMgmtInt TSStatIntGet(int the_stat);
+  tsapi void TSStatIntSet(int the_stat, TSMgmtInt value);
+  /* Currently not supported. */
+  /* tsapi TSeturnCode TSStatFloatGet(int the_stat, float* value); */
+  /* tsapi TSReturnCode TSStatFloatSet(int the_stat, float value); */
+
+  tsapi TSReturnCode TSStatFindName(const char* name, int* idp);
+
+  /* --------------------------------------------------------------------------
+     tracing api */
+
+  tsapi int TSIsDebugTagSet(const char* t);
+  tsapi void TSDebug(const char* tag, const char* format_str, ...) TS_PRINTFLIKE(2, 3);
+  /**
+      Output a debug line even if the debug tag is turned off, as long as
+      debugging is enabled. Could be used as follows:
+      @code
+      TSDebugSpecifc(TSHttpTxnDebugGet(txn), "plugin_tag" , "Hello World from transaction %p", txn);
+      @endcode
+      will be printed if the plugin_tag is enabled or the transaction specific
+      debugging is turned on for txn.
+
+      @param debug_flag boolean flag.
+      @param tag Debug tag for the line.
+      @param format Format string.
+      @param ... Format arguments.
+   */
+  tsapi void TSDebugSpecific(int debug_flag, const char* tag, const char* format_str, ...) TS_PRINTFLIKE(3, 4);
+  extern int diags_on_for_plugins;
+#define TSDEBUG if (diags_on_for_plugins) TSDebug
+
+  /* --------------------------------------------------------------------------
+     logging api */
+
+  /**
+      The following enum values are flags, so they should be powers
+      of two. With the exception of TS_LOG_MODE_INVALID_FLAG, they
+      are all used to configure the creation of an TSTextLogObject
+      through the mode argument to TSTextLogObjectCreate().
+      TS_LOG_MODE_INVALID_FLAG is used internally to check the validity
+      of this argument. Insert new flags before TS_LOG_MODE_INVALID_FLAG,
+      and set TS_LOG_MODE_INVALID_FLAG to the largest power of two of
+      the enum.
+
+   */
+  enum
+  {
+    TS_LOG_MODE_ADD_TIMESTAMP = 1,
+    TS_LOG_MODE_DO_NOT_RENAME = 2,
+    TS_LOG_MODE_INVALID_FLAG = 4
+  };
+
+  /**
+      This type represents a custom log file that you create with
+      TSTextLogObjectCreate(). Your plugin writes entries into this
+      log file using TSTextLogObjectWrite().
+
+   */
+  typedef struct tsapi_textlogobject* TSTextLogObject;
+
+  typedef void (*TSRecordDumpCb) (TSRecordType rec_type, void* edata, int registered, const char* name, TSRecordDataType data_type, TSRecordData* datum);
+
+  tsapi void TSRecordDump(int rec_type, TSRecordDumpCb callback, void* edata);
+
+  /**
+
+      Creates a new custom log file that your plugin can write to. You
+      can design the fields and inputs to the log file using the
+      TSTextLogObjectWrite() function. The logs you create are treated
+      like ordinary logs; they are rolled if log rolling is enabled. (Log
+      collation is not supported though).
+
+      @param filename new log file being created. The new log file
+        is created in the logs directory. You can specify a path to a
+        subdirectory within the log directory, e.g. subdir/filename,
+        but make sure you create the subdirectory first. If you do
+        not specify a file name extension, the extension ".log" is
+        automatically added.
+      @param mode is one (or both) of the following:
+        - TS_LOG_MODE_ADD_TIMESTAMP Whenever the plugin makes a log
+          entry using TSTextLogObjectWrite (see below), it prepends
+          the entry with a timestamp.
+        - TS_LOG_MODE_DO_NOT_RENAME This means that if there is a
+          filename conflict, Traffic Server should not attempt to rename
+          the custom log. The consequence of a name conflict is that the
+          custom log will simply not be created, e.g. suppose you call:
+            @code
+            log = TSTextLogObjectCreate("squid" , mode, NULL, &error);
+            @endcode
+          If mode is TS_LOG_MODE_DO_NOT_RENAME, you will NOT get a new
+          log (you'll get a null pointer) if squid.log already exists.
+          If mode is not TS_LOG_MODE_DO_NOT_RENAME, Traffic Server
+          tries to rename the log to a new name (it will try squid_1.log).
+      @param new_log_obj new custom log file.
+      @return error code:
+        - TS_LOG_ERROR_NO_ERROR No error; the log object has been
+          created successfully.
+        - TS_LOG_ERROR_OBJECT_CREATION Log object not created. This
+          error is rare and would most likely be caused by the system
+          running out of memory.
+        - TS_LOG_ERROR_FILENAME_CONFLICTS You get this error if mode =
+          TS_LOG_MODE_DO_NOT_RENAME, and if there is a naming conflict.
+          The log object is not created.
+        - TS_LOG_ERROR_FILE_ACCESS Log object not created because of
+          a file access problem (for example, no write permission to the
+          logging directory, or a specified subdirectory for the log file
+          does not exist).
+
+   */
+  tsapi TSReturnCode TSTextLogObjectCreate(const char* filename, int mode, TSTextLogObject* new_log_obj);
+
+  /**
+      Writes a printf-style formatted statement to an TSTextLogObject
+      (a plugin custom log).
+
+      @param the_object log object to write to. You must first create
+        this object with TSTextLogObjectCreate().
+      @param format printf-style formatted statement to be printed.
+      @param ... parameters in the formatted statement. A newline is
+        automatically added to the end.
+      @return one of the following errors:
+        - TS_LOG_ERROR_NO_ERROR Means that the write was successful.
+        - TS_LOG_ERROR_LOG_SPACE_EXHAUSTED Means that Traffic Server
+          ran out of disk space for logs. If you see this error you might
+          want to roll logs more often.
+        - TS_LOG_ERROR_INTERNAL_ERROR Indicates some internal problem
+          with a log entry (such as an entry larger than the size of the
+          log write buffer). This error is very unusual.
+
+   */
+  tsapi TSReturnCode TSTextLogObjectWrite(TSTextLogObject the_object, const char* format, ...) TS_PRINTFLIKE(2, 3);
+
+  /**
+      This immediately flushes the contents of the log write buffer for
+      the_object to disk. Use this call only if you want to make sure that
+      log entries are flushed immediately. This call has a performance
+      cost. Traffic Server flushes the log buffer automatically about
+      every 1 second.
+
+      @param the_object custom log file whose write buffer is to be
+        flushed.
+
+   */
+  tsapi void TSTextLogObjectFlush(TSTextLogObject the_object);
+
+  /**
+      Destroys a log object and releases the memory allocated to it.
+      Use this call if you are done with the log.
+
+      @param  the_object custom log to be destroyed.
+
+   */
+  tsapi TSReturnCode TSTextLogObjectDestroy(TSTextLogObject the_object);
+
+  /**
+      Set log header.
+
+   */
+  tsapi void TSTextLogObjectHeaderSet(TSTextLogObject the_object, const char* header);
+
+  /**
+      Enable/disable rolling.
+
+      @param rolling_enabled a valid proxy.config.log.rolling_enabled value.
+
+   */
+  tsapi TSReturnCode TSTextLogObjectRollingEnabledSet(TSTextLogObject the_object, int rolling_enabled);
+
+  /**
+      Set the rolling interval.
+
+   */
+  tsapi void TSTextLogObjectRollingIntervalSecSet(TSTextLogObject the_object, int rolling_interval_sec);
+
+  /**
+      Set the rolling offset. rolling_offset_hr specifies the hour (between 0 and 23) when log rolling
+      should take place.
+
+   */
+  tsapi void TSTextLogObjectRollingOffsetHrSet(TSTextLogObject the_object, int rolling_offset_hr);
+
+  /**
+      Async disk IO read
+
+      @return TS_SUCCESS or TS_ERROR.
+   */
+  tsapi TSReturnCode TSAIORead(int fd, off_t offset, char* buf, size_t buffSize, TSCont contp);
+
+  /**
+      Async disk IO buffer get
+
+      @return char* to the buffer
+   */
+  tsapi char* TSAIOBufGet(TSAIOCallback data);
+
+  /**
+      Async disk IO get number of bytes
+
+      @return the number of bytes
+   */
+  tsapi int TSAIONBytesGet(TSAIOCallback data);
+
+  /**
+      Async disk IO write
+
+      @return TS_SUCCESS or TS_ERROR.
+   */
+  tsapi TSReturnCode TSAIOWrite(int fd, off_t offset, char* buf, size_t bufSize, TSCont contp);
+
+  /**
+      Async disk IO set number of threads
+
+      @return TS_SUCCESS or TS_ERROR.
+   */
+  tsapi TSReturnCode TSAIOThreadNumSet(int thread_num);
+
+  /**
+      Check if transaction was aborted (due client/server errors etc.)
+
+      @return 1 if transaction was aborted
+  */
+  tsapi TSReturnCode TSHttpTxnAborted(TSHttpTxn txnp);
+
+  tsapi TSVConn TSVConnCreate(TSEventFunc event_funcp, TSMutex mutexp);
+  tsapi TSVConn TSVConnFdCreate(int fd);
+
+  /* api functions to access stats */
+  /* ClientResp APIs exist as well and are exposed in PrivateFrozen  */
+  tsapi int TSHttpTxnClientReqHdrBytesGet(TSHttpTxn txnp);
+  tsapi int64_t TSHttpTxnClientReqBodyBytesGet(TSHttpTxn txnp);
+  tsapi int TSHttpTxnServerReqHdrBytesGet(TSHttpTxn txnp);
+  tsapi int64_t TSHttpTxnServerReqBodyBytesGet(TSHttpTxn txnp);
+  tsapi int TSHttpTxnPushedRespHdrBytesGet(TSHttpTxn txnp);
+  tsapi int64_t TSHttpTxnPushedRespBodyBytesGet(TSHttpTxn txnp);
+  tsapi int TSHttpTxnServerRespHdrBytesGet(TSHttpTxn txnp);
+  tsapi int64_t TSHttpTxnServerRespBodyBytesGet(TSHttpTxn txnp);
+  tsapi int TSHttpTxnClientRespHdrBytesGet(TSHttpTxn txnp);
+  tsapi int64_t TSHttpTxnClientRespBodyBytesGet(TSHttpTxn txnp);
+
+  /* NetVC timeout APIs. */
+  tsapi void TSVConnInactivityTimeoutSet(TSVConn connp, TSHRTime timeout);
+  tsapi void TSVConnInactivityTimeoutCancel(TSVConn connp);
+  tsapi void TSVConnActiveTimeoutSet(TSVConn connp, TSHRTime timeout);
+  tsapi void TSVConnActiveTimeoutCancel(TSVConn connp);
+
+  /*
+    ability to skip the remap phase of the State Machine
+    this only really makes sense in TS_HTTP_READ_REQUEST_HDR_HOOK
+  */
+  tsapi void TSSkipRemappingSet(TSHttpTxn txnp, int flag);
+
+
+  /*
+    Set or get various overridable configurations, for a transaction. This should
+    probably be done as early as possible, e.g. TS_HTTP_READ_REQUEST_HDR_HOOK.
+  */
+  tsapi TSReturnCode TSHttpTxnConfigIntSet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtInt value);
+  tsapi TSReturnCode TSHttpTxnConfigIntGet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtInt* value);
+  tsapi TSReturnCode TSHttpTxnConfigFloatSet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtFloat value);
+  tsapi TSReturnCode TSHttpTxnConfigFloatGet(TSHttpTxn txnp, TSOverridableConfigKey conf, TSMgmtFloat* value);
+  tsapi TSReturnCode TSHttpTxnConfigStringSet(TSHttpTxn txnp, TSOverridableConfigKey conf, const char* value, int length);
+  tsapi TSReturnCode TSHttpTxnConfigStringGet(TSHttpTxn txnp, TSOverridableConfigKey conf, const char** value, int* length);
+
+  tsapi TSReturnCode TSHttpTxnConfigFind(const char* name, int length, TSOverridableConfigKey* conf, TSRecordDataType* type);
+
+  /**
+     This API informs the core to try to follow redirections (e.g. 301 responses.
+     The new URL would be provided in the standard Location header.
+
+     @param txnp the transaction pointer
+     @param on   turn this on or off (0 or 1)
+
+     @return @c TS_SUCCESS if it succeeded
+  */
+  tsapi TSReturnCode TSHttpTxnFollowRedirect(TSHttpTxn txnp, int on);
+
+  /**
+     This is a generalization of the TSHttpTxnFollowRedirect(), but gives finer
+     control over the behavior. Instead of using the Location: header for the new
+     destination, this API takes the new URL as a parameter. Calling this API
+     transfers the ownership of the URL from the plugin to the core, so you must
+     make sure it is heap allocated, and that you do not free it.
+
+     Calling this API implicitly also enables the "Follow Redirect" feature, so
+     there is no rason to call TSHttpTxnFollowRedirect() as well.
+
+     @param txnp the transaction pointer
+     @param url  a heap allocated string with the URL
+     @param url_len the length of the URL
+  */
+  tsapi void TSHttpTxnRedirectUrlSet(TSHttpTxn txnp, const char* url, const int url_len);
+  //  This is deprecated as of v5.0.0.
+  tsapi TS_DEPRECATED void TSRedirectUrlSet(TSHttpTxn txnp, const char* url, const int url_len);
+
+  /**
+     Return the current (if set) redirection URL string. This is still owned by the
+     core, and must not be free'd.
+
+     @param txnp the transaction pointer
+     @param url_len_ptr a pointer to where the URL length is to be stored
+
+     @return the url string
+  */
+  tsapi const char* TSHttpTxnRedirectUrlGet(TSHttpTxn txnp, int* url_len_ptr);
+  //  This is deprecated as of v5.0.0.
+  tsapi TS_DEPRECATED const char* TSRedirectUrlGet(TSHttpTxn txnp, int* url_len_ptr);
+
+  /**
+     Return the number of redirection retries we have done. This starts off
+     at zero, and can be used to select different URLs based on which attempt this
+     is. This can be useful for example when providing a list of URLs to try, and
+     do so in order until one succeeds.
+
+     @param txnp the transaction pointer
+
+     @return the redirect try count
+  */
+  tsapi int TSHttpTxnRedirectRetries(TSHttpTxn txnp);
+
+  /* Get current HTTP connection stats */
+  tsapi int TSHttpCurrentClientConnectionsGet(void);
+  tsapi int TSHttpCurrentActiveClientConnectionsGet(void);
+  tsapi int TSHttpCurrentIdleClientConnectionsGet(void);
+  tsapi int TSHttpCurrentCacheConnectionsGet(void);
+  tsapi int TSHttpCurrentServerConnectionsGet(void);
+
+  /* =====  Http Transactions =====  */
+  tsapi TSReturnCode TSHttpTxnCachedRespModifiableGet(TSHttpTxn txnp, TSMBuffer *bufp, TSMLoc *offset);
+  tsapi TSReturnCode TSHttpTxnCacheLookupStatusSet(TSHttpTxn txnp, int cachelookup);
+  tsapi TSReturnCode TSHttpTxnCacheLookupUrlGet(TSHttpTxn txnp, TSMBuffer bufp, TSMLoc obj);
+  tsapi TSReturnCode TSHttpTxnPrivateSessionSet(TSHttpTxn txnp, int private_session);
+  tsapi int TSHttpTxnBackgroundFillStarted(TSHttpTxn txnp);
+
+  /* Expose internal Base64 Encoding / Decoding */
+  tsapi TSReturnCode TSBase64Decode(const char *str, size_t str_len, unsigned char *dst, size_t dst_size, size_t *length);
+  tsapi TSReturnCode TSBase64Encode(const char *str, size_t str_len, char *dst, size_t dst_size, size_t *length);
+
+  /* Get milestone timers, useful for measuring where we are spending time in the transaction processing */
+  /**
+     Return the particular milestone timer for the transaction. If 0 is returned, it means
+     the transaction has not yet reached that milestone. Asking for an "unknown" milestone is
+     an error.
+
+     @param txnp the transaction pointer
+     @param milestone the requested milestone timer
+     was created.
+     @param time a pointer to a TSHRTime where we will store the timer
+
+     @return @c TS_SUCCESS if the milestone is supported, TS_ERROR otherwise
+
+  */
+  tsapi TSReturnCode TSHttpTxnMilestoneGet(TSHttpTxn txnp, TSMilestonesType milestone, TSHRTime *time);
+
+  /**
+    Test whether a request / response header pair would be cacheable under the current
+    configuration. This would typically be used in TS_HTTP_READ_RESPONSE_HDR_HOOK, when
+    you have both the client request and server response ready.
+
+    @param txnp the transaction pointer
+    @param request the client request header. If NULL, use the transactions client request.
+    @param response the server response header. If NULL, use the transactions origin response.
+
+    @return 1 if the request / response is cacheable, 0 otherwise
+  */
+  tsapi int TSHttpTxnIsCacheable(TSHttpTxn txnp, TSMBuffer request, TSMBuffer response);
+
+  /**
+     Return a string respresentation for a TSServerState value. This is useful for plugin debugging.
+
+     @param state the value of this TSServerState
+
+     @return the string representation of the state
+  */
+  tsapi const char* TSHttpServerStateNameLookup(TSServerState state);
+
+  /**
+     Return a string respresentation for a TSHttpHookID value. This is useful for plugin debugging.
+
+     @param hook the value of this TSHttpHookID
+
+     @return the string representation of the hook ID
+  */
+  tsapi const char* TSHttpHookNameLookup(TSHttpHookID hook);
+
+  /**
+     Return a string respresentation for a TSEvent value. This is useful for plugin debugging.
+
+     @param event the value of this TSHttpHookID
+
+     @return the string representation of the event
+  */
+  tsapi const char* TSHttpEventNameLookup(TSEvent event);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __TS_API_H__ */
diff --git a/proxy/config/Makefile.am b/proxy/config/Makefile.am
new file mode 100644
index 00000000..0947e7c4
--- /dev/null
+++ b/proxy/config/Makefile.am
@@ -0,0 +1,55 @@
+# Makefile.am for config
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = body_factory
+EXTRA_DIST = \
+  records.config.default.in \
+  storage.config.default.in
+
+sysconfdir = $(pkgsysconfdir)
+nodist_sysconf_DATA = \
+  records.config.default \
+  storage.config.default
+
+dist_sysconf_DATA =	\
+  cache.config.default \
+  cluster.config.default \
+  congestion.config.default \
+  hosting.config.default \
+  icp.config.default \
+  ip_allow.config.default \
+  log_hosts.config.default \
+  logs_xml.config.default \
+  parent.config.default \
+  volume.config.default \
+  plugin.config.default \
+  prefetch.config.default \
+  remap.config.default \
+  socks.config.default \
+  splitdns.config.default \
+  ssl_multicert.config.default \
+  stats.config.xml.default \
+  update.config.default \
+  vaddrs.config.default
+
+install-exec-hook:
+	for dfltcfgfile in $(dist_sysconf_DATA) $(nodist_sysconf_DATA) ; \
+	do \
+		cfgfile=`echo $$dfltcfgfile | sed 's/\.default$$//'` ; \
+		test -f $(DESTDIR)/$(sysconfdir)/$$cfgfile || mv $(DESTDIR)/$(sysconfdir)/$$dfltcfgfile $(DESTDIR)/$(sysconfdir)/$$cfgfile ; \
+	done
diff --git a/proxy/config/Makefile.in b/proxy/config/Makefile.in
new file mode 100644
index 00000000..bd65dc83
--- /dev/null
+++ b/proxy/config/Makefile.in
@@ -0,0 +1,989 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for config
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
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index 00000000..4101fb6c
--- /dev/null
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diff --git a/proxy/config/body_factory/Makefile.in b/proxy/config/body_factory/Makefile.in
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diff --git a/proxy/config/body_factory/default/.body_factory_info b/proxy/config/body_factory/default/.body_factory_info
new file mode 100644
index 00000000..e07e0219
--- /dev/null
+++ b/proxy/config/body_factory/default/.body_factory_info
@@ -0,0 +1,16 @@
+# .body_factory_info
+#
+# The .body_factory_info file contains descriptive information
+# about the error pages in this directory.
+#
+# Currently, .body_factory_info contains information which
+# indicates the character set and natural language of the error
+# pages in this directory.  For example, to describe Korean
+# web pages encoded in the iso-2022-kr character set, you might
+# add these lines to .body_factory_info file:
+#
+#	Content-Language: kr
+#	Content-Charset: iso-2022-kr
+#
+# If this file is empty, or only contains comments, the default is
+# assumed: English text in the standard utf-8 character set.
diff --git a/proxy/config/body_factory/default/Makefile.am b/proxy/config/body_factory/default/Makefile.am
new file mode 100644
index 00000000..2895e56c
--- /dev/null
+++ b/proxy/config/body_factory/default/Makefile.am
@@ -0,0 +1,49 @@
+# Makefile.am for config/body_factory/default
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+bodyfactorydir = $(pkgsysconfdir)/body_factory/default
+
+dist_bodyfactory_DATA = \
+  access\#denied \
+  access\#proxy_auth_required \
+  access\#redirect_url \
+  access\#ssl_forbidden \
+  .body_factory_info \
+  cache\#not_in_cache \
+  cache\#read_error \
+  congestion\#retryAfter \
+  connect\#dns_failed \
+  connect\#failed_connect \
+  connect\#hangup \
+  default \
+  interception\#no_host \
+  README \
+  redirect\#moved_temporarily \
+  request\#cycle_detected \
+  request\#no_content_length \
+  request\#invalid_content_length \
+  request\#no_host \
+  request\#scheme_unsupported \
+  request\#syntax_error \
+  response\#bad_response \
+  response\#bad_version \
+  timeout\#activity \
+  timeout\#inactivity \
+  transcoding\#unsupported \
+  urlrouting\#no_mapping
+
diff --git a/proxy/config/body_factory/default/Makefile.in b/proxy/config/body_factory/default/Makefile.in
new file mode 100644
index 00000000..cfe893cf
--- /dev/null
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+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
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+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
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+iocore_include_dirs = @iocore_include_dirs@
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+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+bodyfactorydir = $(pkgsysconfdir)/body_factory/default
+dist_bodyfactory_DATA = \
+  access\#denied \
+  access\#proxy_auth_required \
+  access\#redirect_url \
+  access\#ssl_forbidden \
+  .body_factory_info \
+  cache\#not_in_cache \
+  cache\#read_error \
+  congestion\#retryAfter \
+  connect\#dns_failed \
+  connect\#failed_connect \
+  connect\#hangup \
+  default \
+  interception\#no_host \
+  README \
+  redirect\#moved_temporarily \
+  request\#cycle_detected \
+  request\#no_content_length \
+  request\#invalid_content_length \
+  request\#no_host \
+  request\#scheme_unsupported \
+  request\#syntax_error \
+  response\#bad_response \
+  response\#bad_version \
+  timeout\#activity \
+  timeout\#inactivity \
+  transcoding\#unsupported \
+  urlrouting\#no_mapping
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign proxy/config/body_factory/default/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign proxy/config/body_factory/default/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-dist_bodyfactoryDATA: $(dist_bodyfactory_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_bodyfactory_DATA)'; test -n "$(bodyfactorydir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bodyfactorydir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bodyfactorydir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(bodyfactorydir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(bodyfactorydir)" || exit $$?; \
+	done
+
+uninstall-dist_bodyfactoryDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_bodyfactory_DATA)'; test -n "$(bodyfactorydir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(bodyfactorydir)'; $(am__uninstall_files_from_dir)
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(bodyfactorydir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-dist_bodyfactoryDATA
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-dist_bodyfactoryDATA
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	cscopelist-am ctags-am distclean distclean-generic \
+	distclean-libtool distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am \
+	install-dist_bodyfactoryDATA install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \
+	uninstall-am uninstall-dist_bodyfactoryDATA
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/config/body_factory/default/README b/proxy/config/body_factory/default/README
new file mode 100644
index 00000000..3c6e1e29
--- /dev/null
+++ b/proxy/config/body_factory/default/README
@@ -0,0 +1,17 @@
+This directory contains customizable error page templates for the
+Apache Traffic Server.
+
+You can edit the files in this directory to customized HTML error
+response pages.  The HTML bodies can include ATS logging format
+fields, which will be replaced by the current values before the pages
+are served to the user.
+
+You can also include sets of directories, each in a different language,
+for serving multi-lingual error pages.
+
+Each directory of error pages include a .body_factory_info file, which
+contains optional information about the language and character set of
+the error page contents.
+
+See the Traffic Server Administrator's Guide and Release Notes for more
+information.
diff --git a/proxy/config/body_factory/default/access#denied b/proxy/config/body_factory/default/access#denied
new file mode 100644
index 00000000..1207ea98
--- /dev/null
+++ b/proxy/config/body_factory/default/access#denied
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Access Denied</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Access Denied</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: You are not allowed to access the document you requested.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/access#proxy_auth_required b/proxy/config/body_factory/default/access#proxy_auth_required
new file mode 100644
index 00000000..c365d4ff
--- /dev/null
+++ b/proxy/config/body_factory/default/access#proxy_auth_required
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Proxy Authentication Required</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Proxy Authentication Required</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Please login with username and password.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/access#redirect_url b/proxy/config/body_factory/default/access#redirect_url
new file mode 100644
index 00000000..d06b4bd0
--- /dev/null
+++ b/proxy/config/body_factory/default/access#redirect_url
@@ -0,0 +1,15 @@
+<HTML> 
+ <HEAD> 
+  <TITLE>Authentication Failed</TITLE> 
+  <meta http-equiv="refresh" content="0;URL=%<{@redirect_url}cqh>"> 
+ </HEAD> 
+
+ <BODY BGCOLOR=#88DAFF FGCOLOR="black"> 
+  <H1>Authentication Failed.</H1> 
+  <HR> 
+  <FONT FACE="Helvetica,Arial"> 
+  <B>Please wait while you are redirected to another page.</B> 
+  If your browser fails to redirect, click on this <a href="%<{@redirect_url}cqh>">link</a>.
+  </FONT> 
+ </BODY>
+</HTML>
diff --git a/proxy/config/body_factory/default/access#ssl_forbidden b/proxy/config/body_factory/default/access#ssl_forbidden
new file mode 100644
index 00000000..44bda2ec
--- /dev/null
+++ b/proxy/config/body_factory/default/access#ssl_forbidden
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>SSL Port Forbidden</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>SSL Port Forbidden</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: You have made a request for a secure SSL connection to a
+forbidden port number.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/cache#not_in_cache b/proxy/config/body_factory/default/cache#not_in_cache
new file mode 100644
index 00000000..000f346c
--- /dev/null
+++ b/proxy/config/body_factory/default/cache#not_in_cache
@@ -0,0 +1,16 @@
+<HTML>
+<HEAD>
+<TITLE>Not In Cache</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Not In Cache</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Your request mandated that the document come from cache, but
+the document is not present in cache.  As requested, the transaction
+is being terminated.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/cache#read_error b/proxy/config/body_factory/default/cache#read_error
new file mode 100644
index 00000000..cc2ae19b
--- /dev/null
+++ b/proxy/config/body_factory/default/cache#read_error
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Temporary Error</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Temporary Error</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Temporary error.  Please try again later.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/congestion#retryAfter b/proxy/config/body_factory/default/congestion#retryAfter
new file mode 100644
index 00000000..fd74a410
--- /dev/null
+++ b/proxy/config/body_factory/default/congestion#retryAfter
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>Service Unavailable</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Service Unavailable</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description:  Service Unavailable <BR>
+Retry After: %<crat> seconds
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/connect#dns_failed b/proxy/config/body_factory/default/connect#dns_failed
new file mode 100644
index 00000000..70d40bdd
--- /dev/null
+++ b/proxy/config/body_factory/default/connect#dns_failed
@@ -0,0 +1,17 @@
+<HTML>
+<HEAD>
+<TITLE>Unknown Host</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Unknown Host</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Unable to locate the server requested ---
+the server does not have a DNS entry.  Perhaps there is a misspelling
+in the server name, or the server no longer exists.  Double-check the
+name and try again.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/connect#failed_connect b/proxy/config/body_factory/default/connect#failed_connect
new file mode 100644
index 00000000..aff210ee
--- /dev/null
+++ b/proxy/config/body_factory/default/connect#failed_connect
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Could Not Connect</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Could Not Connect</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Could not connect to the requested server host.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/connect#hangup b/proxy/config/body_factory/default/connect#hangup
new file mode 100644
index 00000000..d9578532
--- /dev/null
+++ b/proxy/config/body_factory/default/connect#hangup
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>Server Connection Closed</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Server Connection Closed</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: The server requested closed the connection before
+the transaction was completed.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/default b/proxy/config/body_factory/default/default
new file mode 100644
index 00000000..5dfce191
--- /dev/null
+++ b/proxy/config/body_factory/default/default
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Error</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Error</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Could not process this request.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/interception#no_host b/proxy/config/body_factory/default/interception#no_host
new file mode 100644
index 00000000..18d29dc4
--- /dev/null
+++ b/proxy/config/body_factory/default/interception#no_host
@@ -0,0 +1,17 @@
+<HTML>
+<HEAD>
+<TITLE>Host Header Required</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Host Header Required</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: An attempt was made to transparently proxy your request, 
+but this attempt failed because your browser did not send an HTTP "Host"
+header.  To access this web site correctly, you will need to upgrade to
+a browser that supports the HTTP "Host" header field.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/redirect#moved_permanently b/proxy/config/body_factory/default/redirect#moved_permanently
new file mode 100644
index 00000000..a5c50369
--- /dev/null
+++ b/proxy/config/body_factory/default/redirect#moved_permanently
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Document Has Moved</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Document Has Moved</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: The document you requested has moved to a new location.  The new location is "%<{Location}psh>".
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/redirect#moved_temporarily b/proxy/config/body_factory/default/redirect#moved_temporarily
new file mode 100644
index 00000000..a5c50369
--- /dev/null
+++ b/proxy/config/body_factory/default/redirect#moved_temporarily
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Document Has Moved</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Document Has Moved</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: The document you requested has moved to a new location.  The new location is "%<{Location}psh>".
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/request#cycle_detected b/proxy/config/body_factory/default/request#cycle_detected
new file mode 100644
index 00000000..0cc7c59c
--- /dev/null
+++ b/proxy/config/body_factory/default/request#cycle_detected
@@ -0,0 +1,16 @@
+<HTML>
+<HEAD>
+<TITLE>Cycle Prohibited</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Cycle Prohibited</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Could not process your request for the document 
+because it would cause an HTTP proxy cycle.  Please check the URL and your
+browser's proxy settings.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/request#invalid_content_length b/proxy/config/body_factory/default/request#invalid_content_length
new file mode 100644
index 00000000..a54892b2
--- /dev/null
+++ b/proxy/config/body_factory/default/request#invalid_content_length
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>Invalid Content Length</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Invalid Content Length</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Could not process this request because
+the specified Content-Length was invalid (less than 0).
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/request#no_content_length b/proxy/config/body_factory/default/request#no_content_length
new file mode 100644
index 00000000..4c2f47fa
--- /dev/null
+++ b/proxy/config/body_factory/default/request#no_content_length
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>No Content Length</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>No Content Length</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Could not process this request because
+there was no Content-Length specified.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/request#no_host b/proxy/config/body_factory/default/request#no_host
new file mode 100644
index 00000000..c827a1f1
--- /dev/null
+++ b/proxy/config/body_factory/default/request#no_host
@@ -0,0 +1,17 @@
+<HTML>
+<HEAD>
+<TITLE>Host Header Required</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Host Header Required</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Your browser did not send a "Host" HTTP header field
+and therefore the virtual host being requested could not be determined.
+To access this web site correctly, you will need to upgrade to a browser
+that supports the HTTP "Host" header field.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/request#scheme_unsupported b/proxy/config/body_factory/default/request#scheme_unsupported
new file mode 100644
index 00000000..d66f2276
--- /dev/null
+++ b/proxy/config/body_factory/default/request#scheme_unsupported
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>Unsupported Protocol</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Unsupported Protocol</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Can't perform your request for the document because
+the protocol scheme is unknown.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/request#syntax_error b/proxy/config/body_factory/default/request#syntax_error
new file mode 100644
index 00000000..bb3fbb20
--- /dev/null
+++ b/proxy/config/body_factory/default/request#syntax_error
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Bad Request</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Bad Request</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Could not process this request. 
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/response#bad_response b/proxy/config/body_factory/default/response#bad_response
new file mode 100644
index 00000000..2c185435
--- /dev/null
+++ b/proxy/config/body_factory/default/response#bad_response
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Web Server Error</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Web Server Error</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: The host requested  did not return the document correctly.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/response#bad_version b/proxy/config/body_factory/default/response#bad_version
new file mode 100644
index 00000000..c21cb7cb
--- /dev/null
+++ b/proxy/config/body_factory/default/response#bad_version
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>HTTP Version Not Supported</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>HTTP Version Not Supported</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: The web server requested is using an unsupported
+version of the HTTP protocol.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/timeout#activity b/proxy/config/body_factory/default/timeout#activity
new file mode 100644
index 00000000..0d3eabea
--- /dev/null
+++ b/proxy/config/body_factory/default/timeout#activity
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Activity Timeout</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Activity Timeout</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Too much time has passed transmitting document. 
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/timeout#inactivity b/proxy/config/body_factory/default/timeout#inactivity
new file mode 100644
index 00000000..0ac28da7
--- /dev/null
+++ b/proxy/config/body_factory/default/timeout#inactivity
@@ -0,0 +1,14 @@
+<HTML>
+<HEAD>
+<TITLE>Inactivity Timeout</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Inactivity Timeout</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Too much time has passed without sending any data for document. 
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/transcoding#unsupported b/proxy/config/body_factory/default/transcoding#unsupported
new file mode 100644
index 00000000..941c819f
--- /dev/null
+++ b/proxy/config/body_factory/default/transcoding#unsupported
@@ -0,0 +1,16 @@
+<HTML>
+<HEAD>
+<TITLE>Transcoding Not Available</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Transcoding Not Available</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial">
+
+<B> Description: Unable to provide the document in the
+format requested by your browser.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/body_factory/default/urlrouting#no_mapping b/proxy/config/body_factory/default/urlrouting#no_mapping
new file mode 100644
index 00000000..8f069904
--- /dev/null
+++ b/proxy/config/body_factory/default/urlrouting#no_mapping
@@ -0,0 +1,15 @@
+<HTML>
+<HEAD>
+<TITLE>Not Found on Accelerator</TITLE>
+</HEAD>
+
+<BODY BGCOLOR="white" FGCOLOR="black">
+<H1>Not Found on Accelerator</H1>
+<HR>
+
+<FONT FACE="Helvetica,Arial"><B>
+Description: Your request on the specified host was not found.
+Check the location and try again.
+</B></FONT>
+<HR>
+</BODY>
diff --git a/proxy/config/cache.config.default b/proxy/config/cache.config.default
new file mode 100644
index 00000000..565571a3
--- /dev/null
+++ b/proxy/config/cache.config.default
@@ -0,0 +1,53 @@
+#
+# cache.config
+#
+# The purpose of this file is to alter caching parameters of
+#   specific objects or sets of objects
+#
+# Each line consists of a set of tag value pairs.  The pairs
+#   are in the format  <tag>=<value>
+# 
+# Each line must include exactly one primary specifier
+#
+#   Primary destination specifiers are
+#     dest_domain=
+#     dest_host=
+#     dest_ip=
+#     url_regex=
+#
+#
+# Lines may include any number of the secondary specifiers but
+#    secondary specifiers may not be duplicated on the same line
+#
+#   Secondary specifiers are
+#     port=
+#     scheme=
+#     prefix=
+#     suffix=
+#     method=
+#     time=
+#     src_ip=
+#
+# Each line must include exactly one cache directive
+#   Cache directives are
+#     action=never-cache
+#     action=ignore-no-cache          (client & server no cache)
+#     action=ignore-client-no-cache   (only client no cache)
+#     action=ignore-server-no-cache   (only server no cache)
+#     pin-in-cache=<time>
+#     revalidate=<time>
+#     ttl-in-cache=<time>             (force caching and expire after <time>)
+#
+# Each line may also contain various "tweaks" which adjust caching parameters.
+#   Tweaks are
+#     cache-responses-to-cookies=<value>
+#       - Change the style of caching with regard to cookies. This effectively
+#         overrides the configuration parameter
+#           proxy.config.http.cache.cache_responses_to_cookies
+#         and uses the same values with the same semantics. The override happens
+#         only for requests that match.
+#
+# Examples
+#
+#  Revalidate all http objects from www.example.com after 2 hours 
+#    dest_domain=www.example.com   scheme=http  revalidate=2h
diff --git a/proxy/config/cluster.config.default b/proxy/config/cluster.config.default
new file mode 100644
index 00000000..fb94d848
--- /dev/null
+++ b/proxy/config/cluster.config.default
@@ -0,0 +1,26 @@
+# Cluster Configuration file
+#
+# This file is machine generated and machine parsed.
+# Please do not change this file by hand.
+#
+# This file designates the machines which make up the cluster
+# proper.  Data and load are distributed among these machines.
+#
+############################################################################
+# Number
+# IP:Port 
+# ...
+############################################################################
+# Number = { 0, 1 ... } where 0 is a stand-alone proxy
+# IP:Port = IP address: cluster accept port number
+#
+# Example 1: stand-alone proxy
+# 0
+#
+# Example 2: 3 machines
+# 3
+# 127.1.2.3:83
+# 127.1.2.4:83
+# 127.1.2.5:83
+#
+0
diff --git a/proxy/config/congestion.config.default b/proxy/config/congestion.config.default
new file mode 100644
index 00000000..8394274b
--- /dev/null
+++ b/proxy/config/congestion.config.default
@@ -0,0 +1,56 @@
+#
+# congestion.config
+#
+# The purpose of this file is to specify the congestion control rules.
+#
+# Each line consists of a set of tag value pairs.  The pairs
+#   are in the format  <tag>=<value>
+# 
+# Each line must include exactly one primary specifier
+#
+#   Primary destination specifiers are
+#     dest_domain=
+#     dest_host=
+#     dest_ip=
+#     host_regex=
+# 
+# Lines may include any number of the secondary specifiers but
+#   secondary specifiers may not be duplicated on the same line.
+#
+#   Secondary specifiers are
+#     port=
+#     prefix=
+#
+#   The CongestionControl Rule tag=<tag_value> pairs include:
+#        max_connection_failures=<integer>       //  M
+#        fail_window=<interger>                  //  N
+#        proxy_retry_interval=<integer>          //  t
+#        client_wait_interval=<integer>          //  T
+#        wait_interval_alpha=<integer>           // alpha
+#        live_os_conn_timeout=<integer>          //  n
+#        live_os_conn_retries=<integer>          //  m
+#        dead_os_conn_timeout=<integer>          //  n'
+#        dead_os_conn_retries=<interger>         //  m'
+#        max_connection=<integer>                // -1 means unlimited
+#        error_page=<page uri>
+#        congestion_scheme=per_ip|per_host
+#
+#
+# The suggested default values are as follows:
+#        max_connection_failures=5
+#        fail_window=120
+#        proxy_retry_interval=10
+#        client_wait_interval=300
+#        wait_interval_alpha=30
+#        live_os_conn_timeout=60
+#        live_os_conn_retries=2
+#        dead_os_conn_timeout=15
+#        dead_os_conn_retries=1
+#        max_connection=-1
+#        error_page="congestion#retryAfter"
+#        congestion_scheme="per_ip"
+#
+# You can change the records.config config variables to change the above defaults:
+# CONFIG proxy.config.http.congestion_control.default.XXX INT|STRING YYY
+#
+
diff --git a/proxy/config/hosting.config.default b/proxy/config/hosting.config.default
new file mode 100644
index 00000000..9290214e
--- /dev/null
+++ b/proxy/config/hosting.config.default
@@ -0,0 +1,27 @@
+#
+# 
+# The purpose of this file is to specify the volumes that 
+# specific hostnames or domains should be stored in.
+#
+# Each line consists of a set of tag value pairs.  The pairs
+#   are in the format  <tag>=<value>
+#
+# Each line must include exactly one primary specifier
+#
+#   Primiary destination specifiers are
+#     domain=
+#     hostname=
+#
+#
+# Available directives are:
+# volume=  (comma separated list of volumes)
+#  
+# All requests that 
+# don't belong to the list of hostnames in this file go to the 
+# volumes specified with the hostname or domain name = '*'
+# 
+# For example: to store all inktomi objects in volume 2 
+# hostname=www.example.com  volume=2
+# To direct all other requests to volumes 3 and 4
+# hostname=*	volume=3,4
+#  
diff --git a/proxy/config/icp.config.default b/proxy/config/icp.config.default
new file mode 100644
index 00000000..e42f74b5
--- /dev/null
+++ b/proxy/config/icp.config.default
@@ -0,0 +1,39 @@
+###############################################################################
+#
+# ICP Configuration -- Defines ICP parent/sibling configuration
+#
+#  Each line is formatted with a separator between fields. This can be
+#  a space, ':', ';', ',', or '|' but must be consistent for the
+#  entire line. There must be a terminating separator as the last
+#  character. The separator for the line is determined by this
+#  character. Note: if you use an IPv6 address, you must *not* use
+#  colon as a field separator.
+#
+#    - hostname (string)           -- Identifier for entry
+#    - host_ip_str (string)        -- decimal dot notation
+#    - ctype (int)                 -- 1=Parent, 2=Sibling
+#    - proxy_port (int)            -- TCP Port #
+#    - icp_port (int)              -- UDP Port #
+#    - multicast_member            -- 0=No 1=Yes
+#    - multicast_ip_str (string)   -- decimal dot notation for IPv4
+#				      224.0.0.0 - 239.255.255.255
+#				      colon notation for IPv6
+#				      FF05::2
+#    - multicast_ttl (int)         -- (1 - 2; default 1)
+#
+# <host>:<host IP>:<ctype>:<proxy port>:<icp port>:<MC on>:<mc IP>:<MC ttl>:
+#
+# Example #1 (1 parent and 2 siblings):
+# ==============================================================
+#     host1:209.1.33.10:1:8080:3130:0:0.0.0.0:1:
+#     host2;209.1.33.11;2;8080;3130;0;0.0.0.0;1;
+#     host3|fe80::208:54ff:fe47:d94d|2|8080|3130|0|::|1|
+#
+#
+# Example #2 (1 parent and 1 sibling using MultiCast):
+# ============================================================================
+#     host1 209.1.33.10 1 8080 3130 1 239.128.16.128 1 
+#     host2 209.1.33.11 2:8080:3130 1 239.128.16.128 1 
+# Note: trailing space in previous lines.
+#
+###############################################################################
diff --git a/proxy/config/ip_allow.config.default b/proxy/config/ip_allow.config.default
new file mode 100644
index 00000000..0915d2f9
--- /dev/null
+++ b/proxy/config/ip_allow.config.default
@@ -0,0 +1,23 @@
+# ip_allow.config
+#
+# Rules:
+# src_ip=<range of IP addresses> action=<action> [method=<list of methods separated by '|'>]
+#
+# Actions: ip_allow, ip_deny
+# 
+# Multiple method keywords can be specified (method=GET method=HEAD), or
+# multiple methods can be separated by an '|' (method=GET|HEAD).  The method
+# keyword is optional and it is defaulted to ALL.
+# Available methods: ALL, GET, CONNECT, DELETE, HEAD, ICP_QUERY, OPTIONS,
+# POST, PURGE, PUT, TRACE, PUSH
+#
+# Rules are applied in the order listed starting from the top.
+# That means you generally want to append your rules after the ones listed here.
+#
+# Allow anything on localhost (this is the default configuration based on the
+# depricated CONFIG proxy.config.http.quick_filter.mask INT 0x482)
+src_ip=127.0.0.1                                  action=ip_allow method=ALL
+src_ip=::1                                        action=ip_allow method=ALL
+# Deny PURGE, DELETE, and PUSH for all (this implies allow other methods for all)
+src_ip=0.0.0.0-255.255.255.255                    action=ip_deny  method=PUSH|PURGE|DELETE
+src_ip=::-ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff action=ip_deny  method=PUSH|PURGE|DELETE
diff --git a/proxy/config/log_hosts.config.default b/proxy/config/log_hosts.config.default
new file mode 100644
index 00000000..c5144217
--- /dev/null
+++ b/proxy/config/log_hosts.config.default
@@ -0,0 +1,11 @@
+# log_hosts.config
+#
+# 
+#
+# This configuration file is used when the Traffic Server is configured in
+# reverse-proxy mode and access logs are to be separated by server host
+# name.  This file lists the host names that are to generate separate
+# access log files.
+#
+# The format of this file is to have one host name per line.
+#
diff --git a/proxy/config/logs_xml.config.default b/proxy/config/logs_xml.config.default
new file mode 100644
index 00000000..00bae069
--- /dev/null
+++ b/proxy/config/logs_xml.config.default
@@ -0,0 +1,391 @@
+<!------------------------------------------------------------------------
+logs.config, v2.0
+
+
+This is the configuration file for Traffic Server logging.  This file
+defines log files, their formats, filters, and processing options.  The
+format of this file is modeled after XML, the eXtensible Markup Language.
+White-spaces, blank lines, and all comments are ignored.
+-------------------------------------------------------------------------->
+
+<!------------------------------------------------------------------------
+LogFormats
+
+An event log format specifies which fields are to be gathered from each
+protocol event access.  The following tags are possible for LogFormat
+specifications (a '*' denotes a tag that is required):
+ 
+* <Name = "valid_format_name"/>
+      Valid format names include anything except (squid, common, extended,
+      extended2), which are the pre-defined formats.  There is no default.
+
+* <Format = "valid_format_specification"/>
+       A valid format specification is a printf-style string that describes
+       what each log entry looks like when formatted for ascii output.
+       Placeholders for valid Inktomi field names are specified using the
+       notation '%<field>'.  The specified field can be of two types:
+           (1) simple field: '%<field>', for example %<cqu>.
+           (2) container field: '%<field>container', which is a field within
+               a container (such as an http header or an Inktomi stat).  See
+               documentation for valid container names.
+       To limit the length of field's output, we can use slice notation with
+       above two types:
+           (1) simple field with slice: '%<field[start:end]>',
+           (2) container field with slice: '%<field>container[start:end]'.
+           Here is same example about slice notation:
+            '%<cqup>[:]'    # the whole characters of <cqup>.
+            '%<cqup[0:30]>' # the first 30 characters of <cqup>.
+            '%<cqup[-10:]>' # the last 10 characters of <cqup>.
+            '%<cqup[:-5]>'  # everything except the last 5 characters of <cqup>.
+          Note: slice notation makes sense only when:
+            * the target field is a string type, and
+            * it shouldn't be ip/timestamp which are converted
+              to string from integer internally.
+       If you want to include quotes within the format string, escape them
+       with a backslash. For example, to quote the client request url (cqu),
+       you would type something like
+       <Format = "\"%<cqu>\" %<pssc>"/>
+
+  <Interval = "aggregate_interval_secs"/>
+      This tag is needed when the format contains any of the aggregate
+      operators.  The "aggregate_interval_secs" value is a number 
+      representing the number of seconds over which the entry is aggregated 
+      before being produced.  The valid set of aggregate operators are:
+            COUNT	'*' can be used for the field value
+	    SUM
+	    AVG
+	    FIRST
+	    LAST
+
+Example1: a simple format that contains 3 common fields:
+
+<LogFormat>
+    <Name = "minimal"/>
+    <Format = "%<chi> : %<cqu> : %<pssc>"/>
+</LogFormat>
+
+Example2: a summary format that contains aggregate operators:
+
+<LogFormat>
+    <Name = "summary"/>
+    <Format = "%<LAST(cqts)> : %<COUNT(*)> : %<SUM(psql)>"/>
+    <Interval = "10"/>
+</LogFormat>
+
+-------------------------------------------------------------------------->
+
+<!------------------------------------------------------------------------
+LogFilters
+
+Filters are used to include or exclude certain entries from being
+logged, based on the value of a field within that entry.  A filter
+contains the following tags (a '*' denotes a tag that is required):
+
+* <Name = "valid_filter_name"/>
+      All filters must be uniquely named.
+
+* <Condition = "valid_log_field valid_filter_operator value"/>
+
+      A condition establishes a test that will be performed for each record.
+      The "valid_log_field" is compared to the "value" using the specified
+      "valid_filter_operator". The result of this comparison is either true,
+      or false. The action of the filter (see below) is based on this truth
+      value.
+
+      The "valid_log_field"s are all Inktomi fields that are not a combination
+      of other (simpler) fields. 
+
+      "valid_filter_operator"s are:
+	MATCH
+	CASE_INSENSITIVE_MATCH
+	CONTAIN
+	CASE_INSENSITIVE_CONTAIN
+      These operators are all equivalent to MATCH for integer fields, but
+      provide different functionality for string fields:
+        MATCH: the field and the value must be identical strings
+        CASE_INSENSITIVE_MATCH: the only difference between field and value
+                                is the case
+        CONTAIN: value is a substring of field (case matters)
+        CASE_INSENSITIVE_CONTAIN: value is a substring of field (case does 
+                                  not matter)
+
+* <Action = "valid_action"/>
+      This defines the action that the filter takes, and can be either
+      ACCEPT, or REJECT. ACCEPT accepts the records that satisfy the Condition,
+      REJECT rejects the records that satisfy the condition.
+
+Example1: only log REFRESH_HIT entries
+
+<LogFilter>
+    <Name = "only_refresh_hits"/>
+    <Condition = "pssc MATCH REFRESH_HIT"/>
+    <Action = "ACCEPT"/>
+</LogFilter>
+
+Example2: do not log requests for domain unwanted.com
+
+<LogFilter>
+    <Name = "not_unwanted_domain"/>
+    <Condition = "shn CASE_INSENSITIVE_CONTAIN unwanted.com"/>
+    <Action = "REJECT"/>
+</LogFilter>
+
+-------------------------------------------------------------------------->
+
+<!------------------------------------------------------------------------
+ LogObject
+
+ This section defines the LogObjects that will be collected on this Traffic
+ Server.  Each LogObject has several tags from the following list. Only
+ the Format and the Filename fields are mandatory.
+
+  <Format = "valid_format_name"/>
+      Valid format names include the pre-defined logging formats:
+      (squid, common, extended, extended2), and any previously-defined
+      custom LogFormats).  There is no default for this tag.
+
+  <Filename = "file_name"/>
+      This tag specifies the name of the file to which this log object
+      writes. This can be a local file, or a file on a different machine
+      if this Traffic Server is a collation client (see the LogHostName 
+      tag below.)
+      All filenames are relative to the default logging directory. If
+      "file_name" has no file extension, then a ".log" extension will
+      be added to it if the log is an ascii log (see the "Mode" tag
+      below), and a ".blog" extension if it is a binary log. If
+      "file_name" has a file extension then it is not modified at all
+      regardless of the "Mode" tag. If "file_name" does not have a
+      file extension, and you do not want one, then write a single dot
+      at the end of "file_name". For example <Filename = "no_ext."/>
+      will generate the name "no_ext" without the dot at the end. If
+      you want a single dot at the end of the log filename, then you
+      should specify two dots at the end of the Filename value. For
+      example <Filename="with_dot.."/> will generate the filename
+      "with_dot."
+
+  <Mode = "valid_logging_mode"/>
+      Valid logging modes include ascii, binary, and ascii_pipe.
+      ascii: write log in human readable form (plain ascii).
+      binary: write log in a binary format that can later be read using 
+      the logcat utility.
+      ascii_pipe: do not write log to a regular file, but to a named UNIX
+      pipe (this option is only available on Linux and Solaris).
+
+  <Filters = "list of valid filter names"/>
+      A comma separated list of valid filter names to apply to this
+      object. Valid filter names include any previously-defined LogFilter.
+      If more than one filter is specified, then ALL filters should 
+      accept a record for it to be logged (in other words, filters are
+      ANDed together.)
+
+  <Protocols = "list of protocols"/>
+      The list of protocols to log is a comma separated list of the
+      protocols that the object logs. Valid protocol names are http,
+      icp, and mco. If the object has no Protocol tag, then it logs
+      all protocols. The Protocol tag simply provides an easy way to
+      create a filter that accepts the specified protocols.
+
+  <ServerHosts = "list of servers"/>
+      This tag provides an easy way to create a filter that logs only the
+      requests to hosts in the comma separated list. Only entries from the 
+      named servers will be included in the log file. (Servers can only
+      be specified by name, not by ip.)
+
+  <CollationHosts = "list of collation hosts"/>
+      This tag specifies a comma separated list of collation hosts
+      to which all of the log entries for the LogObject will be forwarded.
+      Specify the hosts using the format host:port, where host can be
+      either a name or an ip. For example:
+      <CollationHosts = "host1.company.com:5000, 209.131.52.129:6000"/>
+
+      Also, we can introduce failover hosts for each collation host by
+      using '|' delimiter, For example:
+      <CollationHosts = "host1:5000|host2:5000|host3:6000, 209.131.52.129:6000"/>
+
+      In the example above, host2/host3 are failover hosts for host1. When host1
+      disconnected, log entries will be sent to host2, and then if host2 failed
+      again, log entries will be sent to host3 until host1 or host2 comes back.
+
+  <Header = "header"/>
+      This tag specifies a string to be written at the beginning of
+      the log file, just before the first record.
+
+  <RollingEnabled = "rolling_enabled_value"/>
+      This tag specifies the automatic rolling mode for the LogObject.
+      It overrides the configuration variable rolling_enabled. 
+      The possible values of rolling_enabled_value are as follows:
+      0: do not roll
+         do not automatically roll this log file
+      1: roll based on time
+         roll this log file at a certain time frequency, specified by the
+         RollingIntervalSec, and RollingOffsetHr tags (see below)
+      2: roll based on size
+         roll when the log file surpasses a certain size, specified by
+         the RollingSizeMb tag (see below)
+      3: roll based on time or size
+         roll when either the specified rolling time is reached or the
+         specified file size is reached
+      4: roll based on time and size
+	 roll the log file when the specified rolling time is reached
+	 if the size of the file equals or exceeds the specified size
+
+  <RollingIntervalSec = "seconds"/>
+      This tag specifies the seconds between consecutive log file 
+      rolls for the LogObject. It overrides the configuration variable
+      rolling_interval_sec.
+
+  <RollingOffsetHr = "hour"/>
+      This tag specifies an hour (from 0 to 23) at which rolling is
+      guaranteed to "align". Rolling may start before then, but a
+      rolled file will be produced at that time. The impact of this
+      setting is only noticeable if the rolling interval is larger
+      than one hour. This tag overrides the configuration variable
+      rolling_offset_hr.
+
+  <RollingSizeMb = "log_size_in_mb"/>
+      This tag specifies the size (in megabytes) the log file must reach
+      before it is rolled if rolling is based on size.
+
+  Please note: 
+
+  - The "Format" and "Filename" tags are mandatory, all others are optional.
+
+  - Any repeated tag will be ignored. For example, if there are two "Format"
+    tags, the second one will be ignored.
+
+  - If you do not see the expected results from the LogObjects you
+    define, check the diags.log file for syntax errors that may have
+    prevented the objects from being created.
+
+  - You can specify any of the RollingEnabled, RollingIntervalSec, and
+    RollingOffsetHr tags for one object. The values you do not specify
+    will be taken from the equivalent configuration variables in the
+    records.config file.
+
+
+  Examples:
+  =========
+
+  Example1: create a local log file for the minimal format defined above.
+
+  <LogObject>
+      <Format = "minimal"/>
+      <Filename = "minimal"/>
+  </LogObject>
+
+  Example2: create a local log file for the minimal format defined above, but
+  do not log the domain unwanted.com (use the filter defined
+  above). Create a binary log rather than an ascii log.
+ 
+  <LogObject>
+      <Format = "minimal"/>
+      <Filename = "minimal_without_unwanted"/>
+      <Filters = "not_unwanted_domain"/>
+      <Mode = "binary"/>
+  </LogObject>
+
+  Example3: like example2, but log only REFRESH_HIT entries (from all domains 
+  except unwanted.com) and use the default ascii mode.
+
+  <LogObject>
+      <Format = "minimal"/>
+      <Filename = "minimal_without_unwanted"/>
+      <Filters = "not_unwanted_domain, only_refresh_hits"/>
+  </LogObject>
+
+  Example4: create a remote log on the collation host
+  remote.company.com (listening on port 4000). Use the "minimal"
+  format defined above, and name the log "minimal_remote".
+
+  <LogObject>
+      <Format = "minimal"/>
+      <Filename = "minimal_remote"/>
+      <CollationHosts = "remote.company.com:4000"/>
+  </LogObject>
+
+  Example5: create a local log using the pre-defined "squid" format.
+  Log only the http and icp protocols, and log only entries from the
+  servers s1.com1.com, and s2.com2.com
+
+  <LogObject>
+      <Format = "squid"/>
+      <Filename = "squid_http_icp_selected_servers"/>
+      <Protocols = "http, icp"/>
+      <ServerHosts = "s1.com1.com, s2.com2.com"/>
+  </LogObject>
+
+  Example6: write to a UNIX named pipe using the pre-defined "squid" format.
+  The name of the pipe will be "squid.pipe".
+
+  <LogObject>
+      <Format = "squid"/>
+      <Filename = "squid"/>
+      <Mode = "ascii_pipe"/>
+  </LogObject>
+
+  Example7: create a log using the pre-defined "common" format, and
+  have the traffic_server roll it at 8AM and 8PM regardless of the
+  setting of the rolling_enabled configuration variable.
+
+  <LogObject>
+      <Format = "common"/>
+      <Filename = "common-8h"/>
+      <RollingEnabled = "1"/>
+      <RollingIntervalSec = "43200"/>
+      <RollingOffsetHr = "8"/>
+  </LogObject>
+
+  Example8: create a log using the pre-defined "common" format, and
+  have the traffic_server roll it every hour if rolling has been
+  enabled through the rolling_enabled configuration variable (note
+  that the RollingOffsetHr setting is irrelevant in this case).
+
+  <LogObject>
+      <Format = "common"/>
+      <Filename = "common-1h"/>
+      <RollingIntervalSec = "3600"/>
+  </LogObject>
+
+-------------------------------------------------------------------------->
+
+
+<!------------------------------------------------------------------------
+
+WebTrends Enhanced Log Format
+-----------------------------
+
+The following <LogFormat> is compatible with the WebTrends Enhanced Log
+Format. If you want to generate a log that can be parsed by WebTrends 
+reporting tools, simply create a <LogObject> that uses this format. 
+
+-------------------------------------------------------------------------->
+
+<LogFormat>
+  <Name = "welf"/>
+  <Format = "id=firewall time=\"%<cqtd> %<cqtt>\" fw=%<phn> pri=6 proto=%<cqus> duration=%<ttmsf> sent=%<psql> rcvd=%<cqhl> src=%<chi> dst=%<shi> dstname=%<shn> user=%<caun> op=%<cqhm> arg=\"%<cqup>\" result=%<pssc> ref=\"%<{Referer}cqh>\" agent=\"%<{user-agent}cqh>\" cache=%<crc>"/>
+</LogFormat>
+
+
+<!------------------------------------------------------------------------
+
+squid Log Format with seconds resolution timestamp
+--------------------------------------------------
+
+The following <LogFormat> is the squid format but with a seconds-only
+timestamp (cqts) instead of a seconds and milliseconds timestamp
+(cqtq).  The default squid format (enabled by setting the
+configuration variable proxy.records.log.squid_log_enabled or through
+the GUI) used to generate seconds-only timestamps. Starting in Traffic
+Server 5.2, it generates millisecond resolution timestamps that are
+compliant with the format of the squid cache.
+If you wish to generate a squid log with seconds resolution timestamp
+simply create a <LogObject> that uses this format.
+
+-------------------------------------------------------------------------->
+
+<LogFormat>
+  <Name = "squid_seconds_only_timestamp"/>
+  <Format = "%<cqts> %<ttms> %<chi> %<crc>/%<pssc> %<psql> %<cqhm> %<cquc> %<caun> %<phr>/%<pqsn> %<psct>"/>
+</LogFormat>
+
+
diff --git a/proxy/config/parent.config.default b/proxy/config/parent.config.default
new file mode 100644
index 00000000..93eecc3b
--- /dev/null
+++ b/proxy/config/parent.config.default
@@ -0,0 +1,52 @@
+#
+# parent.config
+#
+#
+# The purpose of this file is to specify the parent proxy for
+#   specific objects or sets of objects
+#
+# Each line consists of a set of tag value pairs.  The pairs
+#   are in the format  <tag>=<value>
+# 
+# Each line must include exactly one primary specifier
+#
+#   Primary destination specifiers are
+#     dest_domain=
+#     dest_host=
+#     dest_ip=
+#     url_regex=
+#
+#
+# Lines may include any number of the secondary specifiers but
+#    secondary specifiers may not be duplicated on the same line
+#
+#   Secondary specifiers are
+#     port=
+#     scheme=
+#     prefix=
+#     suffix=
+#     method=
+#     time=
+#     src_ip=
+#
+# Available parent directives are:
+#     parent=    (a semicolon separated list of parent proxies)
+#     go_direct={true,false}
+#     round_robin={strict,true,false}
+#
+# Note: for round_robin, strict means strict round_robin - parents are 
+#	tried one by one, true means round_robin based on client IP 
+#	addresses, false means no round_robin
+# 
+# Each line must include a parent= directive or a go_direct=
+#   directive.  If both appear, Traffic Server will directly
+#   contact the origin server if all the listed parent proxies 
+#   are down
+#    
+# Example
+#
+#  Alternate requests between proxy1 and proxy2
+#
+# dest_domain=.  parent="proxy1.example.com:8080; proxy2.example.com:8080"  round_robin=strict
+#
+#
diff --git a/proxy/config/plugin.config.default b/proxy/config/plugin.config.default
new file mode 100644
index 00000000..6f257a10
--- /dev/null
+++ b/proxy/config/plugin.config.default
@@ -0,0 +1,9 @@
+# Comments start with a '#' and continue to the end of the line
+# Blank lines are ignored
+#
+# test-plugin.so arg1 arg2 arg3
+#
+# Example:
+#inktomi/iwx/iwx.so
+#inktomi/abuse/abuse.so etc/trafficserver/abuse.config
+#inktomi/icx/icx.so etc/trafficserver/icx.config
diff --git a/proxy/config/prefetch.config.default b/proxy/config/prefetch.config.default
new file mode 100644
index 00000000..75f8df9e
--- /dev/null
+++ b/proxy/config/prefetch.config.default
@@ -0,0 +1,58 @@
+#prefetch.config
+#example configuration file for prefetch.
+#
+# You need to have following line in records.config file to enable Prefetch
+# feature
+#	CONFIG proxy.config.prefetch.prefetch_enabled INT 1
+#
+#In this file we need to specify Traffic Server child node ip addresses.
+#Prefetch will be applied to requests from those ip addresses:
+#
+# eg:
+# prefetch_children 10.0.0.0 - 10.255.255.255, 216.1.2.3
+
+#Providing separate set of html tags for parsing:
+#
+#There is already a default set of tags which is used by the Prefetch parser.
+#If you don't provide any tags, these default tags will be used. If you provide
+#even one html tag pair, only the html tag pairs provided here will be used. None
+#of the tags in the default set is used:
+# Format:
+# each line should of the form:
+#
+# 	html_tag tag attr
+#
+#       or
+#
+#       html_tag tag attr filter_attr filter_value
+#
+# where 'tag' represents the HTML tag and 'attr' represents the name of the attribute
+# whose value gives the embedded object.
+#
+# The second form allows to specify the name of a filter attribute 'filter_attr' and
+# the value 'filter_value' that it must match for the embedded object to be prefetched.
+#
+# eg: <img height=10 width=10 src="http://www.example.com/images/1.gif">
+# here, tag is "img" and attr is "src"
+# so the line would be:
+# html_tag img src
+#
+# eg: <link rel="stylesheet" type="text/css" href="example.css">
+# here, tag is "link" and attr is "href"
+# an specifying filter_tag as "rel" and filter_value as "stylesheet" enables to
+# prefetch only cascading style sheet links.
+# so the line would be:
+# html_tag link href rel stylesheet
+
+#the following pairs are part of default set of tags used. You could uncomment these and
+#add more if necessary:
+
+# html_tag 	img	src
+# html_tag 	body 	background
+# html_tag 	frame 	src
+# html_tag 	fig 	src
+# html_tag 	applet 	code
+# html_tag 	script 	src
+# html_tag 	embed 	src
+# html_tag 	td	background
+
diff --git a/proxy/config/public_key.der b/proxy/config/public_key.der
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diff --git a/proxy/config/records.config.default.in b/proxy/config/records.config.default.in
new file mode 100644
index 00000000..8299b862
--- /dev/null
+++ b/proxy/config/records.config.default.in
@@ -0,0 +1,197 @@
+##############################################################################
+# *NOTE*: All options covered in this file should be documented in the docs:
+#
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/records.config.en.html
+##############################################################################
+
+##############################################################################
+# Thread configurations. Docs:
+#    https://docs.trafficserver.apache.org/records.config#proxy-config-exec-thread-autoconfig
+##############################################################################
+CONFIG proxy.config.exec_thread.autoconfig INT 1
+CONFIG proxy.config.exec_thread.autoconfig.scale FLOAT 1.5
+CONFIG proxy.config.exec_thread.limit INT 2
+CONFIG proxy.config.ssl.number.threads INT 0
+CONFIG proxy.config.accept_threads INT 1
+CONFIG proxy.config.task_threads INT 2
+CONFIG proxy.config.cache.threads_per_disk INT 8
+    # https://docs.trafficserver.apache.org/records.config#proxy-config-exec-thread-affinity
+CONFIG proxy.config.exec_thread.affinity INT 0
+
+##############################################################################
+# Specify server addresses and ports to bind for HTTP and HTTPS. Docs:
+#    https://docs.trafficserver.apache.org/records.config#proxy-config-http-server-ports
+##############################################################################
+CONFIG proxy.config.http.server_ports STRING 8080
+
+##############################################################################
+# Via: headers. Docs:
+#     https://docs.trafficserver.apache.org/records.config#proxy-config-http-insert-response-via-str
+##############################################################################
+CONFIG proxy.config.http.insert_request_via_str INT 1
+CONFIG proxy.config.http.insert_response_via_str INT 0
+
+##############################################################################
+# Parent proxy configuration, in addition to these settings also see parent.config. Docs:
+#    https://docs.trafficserver.apache.org/records.config#parent-proxy-configuration
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/parent.config.en.html
+##############################################################################
+CONFIG proxy.config.http.parent_proxy_routing_enable INT 0
+CONFIG proxy.config.http.parent_proxy.retry_time INT 300
+CONFIG proxy.config.http.parent_proxy.connect_attempts_timeout INT 30
+CONFIG proxy.config.http.forward.proxy_auth_to_parent INT 0
+
+##############################################################################
+# HTTP connection timeouts (secs). Docs:
+#    https://docs.trafficserver.apache.org/records.config#http-connection-timeouts
+##############################################################################
+CONFIG proxy.config.http.keep_alive_no_activity_timeout_in INT 115
+CONFIG proxy.config.http.keep_alive_no_activity_timeout_out INT 120
+CONFIG proxy.config.http.transaction_no_activity_timeout_in INT 30
+CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 30
+CONFIG proxy.config.http.transaction_active_timeout_in INT 900
+CONFIG proxy.config.http.transaction_active_timeout_out INT 0
+CONFIG proxy.config.http.accept_no_activity_timeout INT 120
+CONFIG proxy.config.net.default_inactivity_timeout INT 86400
+
+##############################################################################
+# Origin server connect attempts. Docs:
+#    https://docs.trafficserver.apache.org/records.config#origin-server-connect-attempts
+##############################################################################
+CONFIG proxy.config.http.connect_attempts_max_retries INT 6
+CONFIG proxy.config.http.connect_attempts_max_retries_dead_server INT 3
+CONFIG proxy.config.http.connect_attempts_rr_retries INT 3
+CONFIG proxy.config.http.connect_attempts_timeout INT 30
+CONFIG proxy.config.http.post_connect_attempts_timeout INT 1800
+CONFIG proxy.config.http.down_server.cache_time INT 300
+CONFIG proxy.config.http.down_server.abort_threshold INT 10
+
+##############################################################################
+# Negative response caching, for redirects and errors. Docs:
+#    https://docs.trafficserver.apache.org/records.config#negative-response-caching
+##############################################################################
+CONFIG proxy.config.http.negative_caching_enabled INT 0
+CONFIG proxy.config.http.negative_caching_lifetime INT 1800
+
+##############################################################################
+# Proxy users variables. Docs:
+#    https://docs.trafficserver.apache.org/records.config#proxy-user-variables
+##############################################################################
+CONFIG proxy.config.http.anonymize_insert_client_ip INT 1
+CONFIG proxy.config.http.insert_squid_x_forwarded_for INT 1
+
+##############################################################################
+# Security. Docs:
+#    https://docs.trafficserver.apache.org/records.config#security
+##############################################################################
+CONFIG proxy.config.http.push_method_enabled INT 0
+
+##############################################################################
+# Cache control. Docs:
+#    https://docs.trafficserver.apache.org/records.config#cache-control
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/cache.config.en.html
+##############################################################################
+CONFIG proxy.config.http.cache.ignore_client_cc_max_age INT 1
+CONFIG proxy.config.http.normalize_ae_gzip INT 1
+CONFIG proxy.config.http.cache.cache_responses_to_cookies INT 1
+CONFIG proxy.config.http.cache.cache_urls_that_look_dynamic INT 1
+    # https://docs.trafficserver.apache.org/records.config#proxy-config-http-cache-when-to-revalidate
+CONFIG proxy.config.http.cache.when_to_revalidate INT 0
+    # https://docs.trafficserver.apache.org/records.config#proxy-config-http-cache-required-headers
+CONFIG proxy.config.http.cache.required_headers INT 2
+
+##############################################################################
+# Heuristic cache expiration. Docs:
+#    https://docs.trafficserver.apache.org/records.config#heuristic-expiration
+##############################################################################
+CONFIG proxy.config.http.cache.heuristic_min_lifetime INT 3600
+CONFIG proxy.config.http.cache.heuristic_max_lifetime INT 86400
+CONFIG proxy.config.http.cache.heuristic_lm_factor FLOAT 0.10
+
+##############################################################################
+# Network. Docs:
+#    https://docs.trafficserver.apache.org/records.config#network
+##############################################################################
+CONFIG proxy.config.net.connections_throttle INT 30000
+
+##############################################################################
+# RAM and disk cache configurations. Docs:
+#    https://docs.trafficserver.apache.org/records.config#ram-cache
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/storage.config.en.html
+##############################################################################
+CONFIG proxy.config.cache.ram_cache.size INT -1
+CONFIG proxy.config.cache.ram_cache_cutoff INT 4194304
+    # https://docs.trafficserver.apache.org/records.config#proxy-config-cache-limits-http-max-alts
+CONFIG proxy.config.cache.limits.http.max_alts INT 5
+    # https://docs.trafficserver.apache.org/records.config#proxy-config-cache-max-doc-size
+CONFIG proxy.config.cache.max_doc_size INT 0
+CONFIG proxy.config.cache.min_average_object_size INT 8000
+
+##############################################################################
+# Logging Config. Docs:
+#    https://docs.trafficserver.apache.org/records.config#logging-configuration
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/logs_xml.config.en.html
+##############################################################################
+CONFIG proxy.config.log.logging_enabled INT 3
+CONFIG proxy.config.log.max_space_mb_for_logs INT 25000
+CONFIG proxy.config.log.max_space_mb_headroom INT 1000
+CONFIG proxy.config.log.squid_log_enabled INT 1
+CONFIG proxy.config.log.squid_log_is_ascii INT 0
+CONFIG proxy.config.log.rolling_enabled INT 1
+CONFIG proxy.config.log.rolling_interval_sec INT 86400
+CONFIG proxy.config.log.rolling_size_mb INT 10
+CONFIG proxy.config.log.auto_delete_rolled_files INT 1
+
+##############################################################################
+# These settings control remapping, and if the proxy allows (open) forward proxy or not. Docs:
+#    https://docs.trafficserver.apache.org/records.config#url-remap-rules
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/remap.config.en.html
+##############################################################################
+CONFIG proxy.config.url_remap.remap_required INT 1
+    # https://docs.trafficserver.apache.org/records.config#proxy-config-url-remap-pristine-host-hdr
+CONFIG proxy.config.url_remap.pristine_host_hdr INT 0
+
+##############################################################################
+# SSL Termination. Docs:
+#    https://docs.trafficserver.apache.org/records.config#client-related-configuration
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/ssl_multicert.config.en.html
+##############################################################################
+CONFIG proxy.config.ssl.client.verify.server INT 0
+CONFIG proxy.config.ssl.client.CA.cert.filename STRING NULL
+CONFIG proxy.config.ssl.server.cipher_suite STRING ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:AES128-GCM-SHA256:AES256-GCM-SHA384:ECDHE-RSA-RC4-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:RC4-SHA:RC4-MD5:AES128-SHA:AES256-SHA:DES-CBC3-SHA!SRP:!DSS:!PSK:!aNULL:!eNULL:!SSLv2
+
+##############################################################################
+# ICP Configuration. Docs:
+#    https://docs.trafficserver.apache.org/records.config#icp-configuration
+#    https://docs.trafficserver.apache.org/en/latest/reference/configuration/icp.config.en.html
+##############################################################################
+CONFIG proxy.config.icp.enabled INT 0
+
+##############################################################################
+# Debugging. Docs:
+#    https://docs.trafficserver.apache.org/records.config#diagnostic-logging-configuration
+##############################################################################
+CONFIG proxy.config.diags.debug.enabled INT 0
+CONFIG proxy.config.diags.debug.tags STRING http.*|dns.*
+# ToDo: Undocumented
+CONFIG proxy.config.dump_mem_info_frequency INT 0
+CONFIG proxy.config.http.slow.log.threshold INT 0
+
+##############################################################################
+# These are necessary (for now) to keep traffic_manager/_cop happy.
+##############################################################################
+CONFIG proxy.config.proxy_name STRING @build_machine@
+CONFIG proxy.config.admin.user_id STRING @pkgsysuser@
+CONFIG proxy.config.log.logfile_dir STRING @rel_logdir@
+CONFIG proxy.config.output.logfile STRING traffic.out
+
+##############################################################################
+# Cluster Subsystem. Docs:
+#    https://docs.trafficserver.apache.org/records.config#cluster
+##############################################################################
+LOCAL proxy.local.cluster.type INT 3
+CONFIG proxy.config.cluster.ethernet_interface STRING @default_loopback_iface@
+CONFIG proxy.config.cluster.cluster_port INT 8086
+CONFIG proxy.config.cluster.rsport INT 8088
+CONFIG proxy.config.cluster.mcport INT 8089
+CONFIG proxy.config.cluster.mc_group_addr STRING 224.0.1.37
diff --git a/proxy/config/remap.config.default b/proxy/config/remap.config.default
new file mode 100644
index 00000000..2198ee48
--- /dev/null
+++ b/proxy/config/remap.config.default
@@ -0,0 +1,192 @@
+#
+#  URL Remapping Config File
+#
+# Using remap.config allows you to accomplish two things:
+#
+#  1) Rewrite a URL (from the client) before sending it to the Origin Server.
+#  2) Protect the proxy server, to only allow certain requests.
+#
+#  With the default configurations, at least one remap rule is required. This
+#  can be relaxed with the following configuration in records.config:
+#
+#   CONFIG proxy.config.url_remap.remap_required INT 0
+#
+# Be aware, doing so makes the proxy a generic, open-relay!
+#
+#  The format is:
+#      <map_type> client-URL origin-server-URL <tag_value> <filtering>
+#
+# Where client-URL and origin-server-URL are both of the format
+#    <scheme>://<host>:<port>/<path_prefix>
+#
+#  The <tag_value> directive is optional and can be different for different
+#  types of <map_type>. The <filtering arguments> are optional ACL-like
+#  arguments unique for each remap rule
+#
+#  Six different types of mappings are possible:
+#     map
+#     map_with_referer
+#     map_with_recv_port
+#     reverse_map
+#     redirect
+#     redirect_temporary
+#
+#  Each of these map types can be prefixed with the string 'regex_' to indicate
+#  that the rule will have regular expression strings. See the last part of
+#  this description for more information on regex support.
+#
+#  The 'map' mapping is the most straightforward.  Requests that match the
+#  client-URL are rewritten into the origin-server-URL. The user agent will see
+#  the page on the remapped URL, but will not be notified of the address
+#  change.
+#
+#  The 'map_with_referer' is an extended version of 'map', which can be used to
+#  activate the so-called "deep linking protection" feature available in
+#  Apache Traffic Server.
+#
+#  The 'map_with_recv_port' is exactly like 'map' except that it uses the port
+#  at which the request was received to perform the mapping instead of the port
+#  present in the request. When present, 'map_with_recv_port' mappings are
+#  checked first. If there is a match, then it is chosen without evaluating the
+#  "regular" forward mapping rules.
+#
+#  The 'reverse_map' mapping is used to rewrite location headers sent by the
+#  origin server.  The 'redirect' mapping creates a permanent redirect message
+#  and informs the browser of the URL change.
+#
+#  The 'redirect_temporary' mapping acts in the same way but tells the browser
+#  that this redirect is only temporary.  We need to map the URL in reverse
+#  proxy mode so that user agents know to contact Traffic Server and not
+#  attempt to contact the Origin Server directly.
+#
+#  For example, you can set up a reverse proxy for www.example.com with the
+#  real content situated at server1.example.com with the rules:
+#
+#    map          http://www.example.com/      http://server1.example.com/
+#    reverse_map  http://server1.example.com/  http://www.example.com/
+#
+#  Or you could permanently redirect users trying to access www.oldserver.com
+#  to www.newserver.com with the following rule:
+#
+#    redirect	http://www.oldserver.com/    http://www.newserver.com
+#
+#  If the redirect is only temporary, you want to only temporarily remap the
+#  URL.  You could use the following rule to divert users away from a failed
+#  server:
+#
+#  redirect_temporary http://broken.firm.com http://working.firm.com
+#
+#  In order to use "deep linking protection" Traffic Server's feature, the
+#  'map_with_referer' mapping scheme must be used. In general, the format of is
+#  the following:
+#
+#     map_with_referer client-URL origin-server-URL redirect-URL regex1 [regex2 ...]
+#
+#  'redirect-URL' is a redirection URL specified according to RFC 2616 and can
+#  contain special formatting instructions for run-time modifications of the
+#  resulting redirection URL.  All regexes Perl compatible  regular expressions,
+#  which describes the content of the "Referer" header which must be
+#  verified. In case an actual request does not have "Referer" header or it
+#  does not match with referer regular expression, the HTTP request will be
+#  redirected to 'redirect-URL'.
+#
+#  At least one regular expressions must be specified in order to activate
+#  'deep linking protection'.  There are limitations for the number of referer
+#  regular expression strings - 2048.  In order to enable the 'deep linking
+#  protection' feature in Traffic Server, configure records.config with:
+#
+#    CONFIG proxy.config.http.referer_filter INT 1
+#
+#  In order to enable run-time formatting for redirect0URL, configure
+#
+#    CONFIG proxy.config.http.referer_format_redirect INT 1
+#
+#  When run-time formatting for redirect-URL was enabled the following format
+#  symbols can be used:
+#
+#    %r - to substitute original "Referer" header string
+#    %f - to substitute client-URL from 'map_with_referer' record
+#    %t - to substitute origin-server-URL from 'map_with_referer' record
+#    %o - to substitute request URL to origin server, which was created a
+#         the result of a mapping operation
+#
+#  Note: There is a special referer type "~*" that can be used in order to
+#  specify that the Referer header is optional in the request.  If "~*" referer
+#  was used in map_with_referer mapping, only requests with Referer header will
+#  be verified for validity.  If the "~" symbol was specified before referer
+#  regular expression, it means that the request with a matching referer header
+#  will be redirected to redirectURL. It can be used to create a so-called
+#  negative referer list.  If "*" was used as a referer regular expression -
+#  all referers are allowed.  Various combinations of "*" and "~" in a referer
+#  list can be used to create different filtering rules.
+#
+#  Examples:
+#    map_with_referer http://y.foo.bar.com/x/yy/  http://foo.bar.com/x/yy/ http://games.bar.com/new_games .*\.bar\.com www.bar-friends.com
+#
+#  Explanation: Referer header must be in the request, only ".*\.bar\.com"
+#  and "www.bar-friends.com" are allowed.
+#
+#    map_with_referer http://y.foo.bar.com/x/yy/  http://foo.bar.com/x/yy/ http://games.bar.com/new_games * ~.*\.evil\.com
+#
+#  Explanation: Referer header must be in the request but all referers are
+#  allowed except ".*\.evil\.com".
+#
+#    map_with_referer http://y.foo.bar.com/x/yy/  http://foo.bar.com/x/yy/ http://games.bar.com/error ~* * ~.*\.evil\.com
+#
+#  Explanation: Referer header is optional. However, if Referer header exists,
+#  only request from ".*\.evil\.com" will be redirected to redirect-URL.
+#
+#  There are optional filtering arguments that can be specified at the end of the mapping definition line:
+#
+#    @action=allow|deny
+#    @src_ip=IP-address
+#    @method=HTTP method string (CONNECT|DELETE|GET|HEAD|ICP_QUERY|OPTIONS|POST|PURGE|PUT|TRACE|PUSH)
+#    @plugin=<plugin_path>
+#    @pparam=<plugin_param>
+#
+#  There is no limitation for the number of filtering arguments.
+#
+#  Example:
+#    map http://foo.cow.com/ http://bar.cow.com @src_ip=10.72.118.51-10.72.118.62 @method=GET @method=DELETE @src_ip=192.168.0.1-192.168.0.254 @action=allow @method=PUT
+#
+#  Traffic Server supports WebSockets but it must be enabled via remap. WebSocket upgrades are automatically
+#  detected when there exists a remap rule containing a ws:// scheme.
+#
+#  Example:
+#     map ws://bar.com/ ws://foo.com/
+#
+#  Explaination: When a request comes in with the appropriate upgrade headers, Traffic Server will use this
+#   remap rule in an attempt to establish and maintain a websocket connection.
+#
+#  Named filters can be created and applied to blocks of mappings
+#  using the .definefilter, .activatefilter, and .deactivatefilter
+#  directives. Named filters must be defined using .definefilter
+#  before being used. Once defined, .activatefilter can used to
+#  activate a filter for all mappings that follow until deactivated
+#  with .deactivatefilter.
+#
+#  Example:
+#    .definefilter disable_delete_purge @action=deny @method=delete @method=purge
+#    .definefilter internal_only @action=allow @src_ip=192.168.0.1-192.168.0.254 @src_ip=10.0.0.1-10.0.0.254
+#
+#    .activatefilter disable_delete_purge
+#
+#    map http://foo.example.com/ http://bar.example.com/
+#
+#    .activatefilter internal_only
+#    map http://www.example.com/admin http://internal.example.com/admin
+#    .deactivatefilter internal_only
+#
+#    map http://www.example.com/ http://internal.example.com/
+#
+#
+#  Regex support: Regular expressions can be specified in the rules with the
+#  following limitations:
+#
+#  1) Only the host field can have regexes - the scheme, port and other
+#     fields cannot.
+#  2) The number of capturing sub-patterns is limited to 9;
+#     this means $0 through $9 can be used as substitution place holders ($0
+#     will be the entire input string)
+#  3) The number of substitutions in the expansion string is limited to 10.
+#
diff --git a/proxy/config/socks.config.default b/proxy/config/socks.config.default
new file mode 100644
index 00000000..cd9e06aa
--- /dev/null
+++ b/proxy/config/socks.config.default
@@ -0,0 +1,49 @@
+#
+#
+# socks.config format:
+# File consists of several lines. Each line can be a maximum of 400
+# chars.
+#
+# We will not use SOCKS for addresses specified using no_socks.
+# Any line whose first string is "no_socks" must be of the following
+# format:
+# no_socks <comma separated list of IPADDRESS and/or IPADDRESS_RANGE>
+# IPADDRESS is x1.x2.x3.x4
+# IPADDRESS_RANGE is x1.x2.x3.x4 - y1.y2.y3.y4
+#
+
+no_socks   123.14.15.1 - 123.14.17.4, 113.14.18.2
+no_socks   123.14.30.1 - 123.14.63.4, 122.43.15.2
+no_socks   123.14.84.1 - 123.14.89.4, 109.32.15.2
+
+#
+# Authentication for SOCKS 5
+# We currently support Username/Password authentication
+# Format for username/password used by traffic_server when it connects to
+# the SOCKS server:
+#   auth u <user_name> <pasword>
+# The letter u says it is of type username/password. 
+# e.g:
+#   auth u traffic_server inktomi
+#
+# specifying multiple parents based on ip addresses
+#
+# specification is same as for parents (see parent.config and documentation
+# for parent.config).
+# The main differences:
+# 	This supports only "dest_ip" as the primary specifier
+#       This supports only "parent" and "round_robin" as the secondary specifiers
+#
+# examples:
+#
+# The following rule uses internal.exaple.com:1080 as the socks server all
+# destination addresses between 10.0.0.0 and 10.255.255.255
+#
+# dest_ip=10.0.0.0-10.255.255.255 parent="internal.example.com:1080"
+#
+# The following uses socks1 (at port 4080) and socks2 (at port 1080) alternately
+# (round-robin).
+#
+# dest_ip=216.32.0.0-216.32.255.255 parent="socks1:4080; socks2:1080" round_robin=strict
+#
+########################################################################################
diff --git a/proxy/config/splitdns.config.default b/proxy/config/splitdns.config.default
new file mode 100644
index 00000000..0a7c4355
--- /dev/null
+++ b/proxy/config/splitdns.config.default
@@ -0,0 +1,58 @@
+#
+# splitdns.config
+#
+#
+# The purpose of this file is to specify the dns server for
+#   specific objects or sets of objects.
+#
+# Each line consists of a set of tag value pairs.  The pairs
+#   are in the format  <tag>=<value>. Please note that there
+#   should not be any spaces in the specifiers.
+# 
+# Each line must include exactly one primary specifier
+#
+#   Primary destination specifiers are
+#     dest_domain=
+#     dest_host=
+#     url_regex=
+#
+#
+# Available server directives are:
+# Required:
+#     named=       ( required; a DNS server; port may be included,
+#                    separated by ':'. If none provided, the default
+#                    port used is 53. Multiple DNS server may be 
+#                    specified, separated by spaces or ';'. The
+#                    DNS servers are required to be in ip address 
+#                    format )
+#
+# Optional:          
+#     def_domain=  ( optional;  when provided, only one default
+#                    may be listed on the line )
+#
+#     search_list= ( optional; however, if provided, requires at 
+#                    least one search domain. If an organization
+#                    has multiple zones, they may be specified, 
+#                    separated by spaces or ';'.  )
+# 
+# Each line must include at least a named= directive with an IP address
+# in the "dot" format. "def_domain=" and "search_list=" are optional.
+#
+# Additional notes:
+#
+# For improved performance, the system has a 'fast path', which is activated
+# when all the primary destination specifiers are of the type 
+# 'dest_domain' or 'dest_host'. It also requires that the number of rules
+# not exceed four (4). One of the side effect of this is, the first match
+# will terminate the search.
+#
+# If a host name is not fully qualified, i.e. does not have the domain 
+# specifier (ex. 'internal' instead of internal.example.com'), then
+# there is no rule using the primary destination specifier 'url_regex'. 
+#
+#    
+# Example:
+#
+#dest_domain=int.ik.com named="255.257..." def_domain="int.ik.com" search_list="int.ik.com mkt.ik.com"
+#dest_domain=!int.ik.com named="255.25..." def_domain="ik.com"
+
diff --git a/proxy/config/ssl_multicert.config.default b/proxy/config/ssl_multicert.config.default
new file mode 100644
index 00000000..b6dff3c4
--- /dev/null
+++ b/proxy/config/ssl_multicert.config.default
@@ -0,0 +1,55 @@
+#
+# ssl_multicert.config
+#
+# Allows a TLS certificate and private key to be tied to a specific
+# hostname or IP address. At load time, the certificate is parsed to
+# extract the subject CN and all the DNS subjectAltNames.  The
+# certificate will be presented for connections requesting any of the
+# hostnames found in the certificate. Wildcard names are supported,
+# but only of the form '*.domain.com', ie. where '*' is the leftmost
+# domain component.
+#
+# The certificate file path, CA path and key path specified in
+# records.config will be used for all certificates, CAs and keys
+# specified here.
+#
+# Fields:
+#
+# dest_ip=ADDRESS
+#   The IP (v4 or v6) address that the certificate should be presented
+#   on. This is now only used as a fallback in the case that the TLS
+#   SubjectNameIndication extension is not supported. If ADDRESS is
+#   '*', the certificate will be used as the default fallback if no
+#   other match can be made.
+#
+#   The address specified here can contain a port specifier, in which
+#   case the corresponding certificate will only match for connections
+#   accepted on the specified port. IPv6 addresses must be enclosed by
+#   square brackets if they have a port, eg, [::1]:80.
+#
+# ssl_key_name=FILENAME
+#   The name of the file containing the private key for this certificate.
+#   If the key is contained in the certificate file, this field can be
+#   omitted.
+#
+# ssl_ca_name=FILENAME
+#   If your certificates have different Certificate Authorities, you
+#   can optionally specify the corresponding file here.
+#
+# ssl_cert_name=FILENAME
+#   The name of the file containing the TLS certificate. This is the
+#   only field that is required to be present.
+#
+# ssl_key_dialog=[builtin|exec:/path/to/program]
+#   Method used to provide a pass phrase for encrypted private keys.
+#   Two options are supported: builtin and exec
+#     builtin - Requests passphrase via stdin/stdout. Useful for debugging.
+#     exec: - Executes a program and uses the stdout output for the pass
+#       phrase.
+#
+# Examples:
+#   ssl_cert_name=foo.pem
+#   dest_ip=*	ssl_cert_name=bar.pem ssl_key_name=barKey.pem
+#   dest_ip=209.131.48.79	ssl_cert_name=server.pem ssl_key_name=serverKey.pem
+#   dest_ip=10.0.0.1:99 ssl_cert_name=port99.pem
+#   ssl_cert_name=foo.pem ssl_key_dialog="exec:/usr/bin/mypass foo 'ba r'"
diff --git a/proxy/config/stats.config.dtd b/proxy/config/stats.config.dtd
new file mode 100644
index 00000000..e9060cf3
--- /dev/null
+++ b/proxy/config/stats.config.dtd
@@ -0,0 +1,14 @@
+<!ELEMENT statistics (stat+,alarm*)>
+<!ELEMENT stat       (expr?, dst, src*, interval?)>
+<!ELEMENT expr       (#PCDATA)>
+<!ELEMENT dst        ANY>
+    <!ELEMENT min    (#PCDATA)>
+    <!ELEMENT max    (#PCDATA)>
+    <!ELEMENT diff   EMPTY>
+<!ELEMENT src        (#PCDATA)>
+<!ELEMENT interval   (#PCDATA)>
+<!ELEMENT alarm      (#PCDATA)>
+
+<!ATTLIST dst define (built-in|custom) "built-in">
+<!ATTLIST dst scope (node|cluster) "node">
+<!ATTLIST dst operation (sum|re-calculate) "sum">
diff --git a/proxy/config/stats.config.xml.default b/proxy/config/stats.config.xml.default
new file mode 100644
index 00000000..6d97a7a8
--- /dev/null
+++ b/proxy/config/stats.config.xml.default
@@ -0,0 +1,1951 @@
+<?xml version="1.0" standalone="no"?>
+ 
+<!DOCTYPE ink:statistics SYSTEM "stats.config.dtd">
+
+<!-- Traffic Server's namespace: ink -->
+<ink:statistics xmlns:ink='http://trafficserver.apache.com/'>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.user_agents_total_documents_served</destination>
+        <destination scope="cluster">proxy.cluster.http.user_agents_total_documents_served</destination>
+        <expression>
+            proxy.process.http.incoming_requests
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.user_agents_total_transactions_count</destination>
+        <destination scope="cluster">proxy.cluster.http.user_agents_total_transactions_count</destination>
+        <expression>
+            proxy.process.http.incoming_requests
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.origin_server_total_transactions_count</destination>
+        <destination scope="cluster">proxy.cluster.http.origin_server_total_transactions_count</destination>
+        <expression>
+            proxy.process.http.outgoing_requests
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.cache_current_connections_count</destination>
+        <destination scope="cluster">proxy.cluster.http.cache_current_connections_count</destination>
+        <expression>
+            proxy.process.http.current_cache_connections
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.user_agent_current_connections_count</destination>
+        <destination scope="cluster">proxy.cluster.http.user_agent_current_connections_count</destination>
+        <expression>
+            proxy.process.http.current_client_connections
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.origin_server_current_connections_count</destination>
+        <destination scope="cluster">proxy.cluster.http.origin_server_current_connections_count</destination>
+        <expression>
+            proxy.process.http.current_server_connections
+        </expression>
+    </statistics>
+
+    <!-- Cache -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache.bytes_total</destination>
+        <expression>
+            proxy.process.cache.bytes_total
+        </expression>
+    </statistics>
+
+
+    <!-- DNS -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.dns.total_dns_lookups</destination>
+        <destination scope="cluster">proxy.cluster.dns.total_dns_lookups</destination> 
+        <expression>
+            proxy.process.dns.total_dns_lookups
+        </expression>
+    </statistics>
+
+
+    <!-- HostDB -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.hostdb.total_lookups</destination>
+        <expression>
+            proxy.process.hostdb.total_lookups
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.hostdb.total_hits</destination>
+        <expression>
+            proxy.process.hostdb.total_hits
+        </expression>
+    </statistics>
+
+
+    <!-- Cluster -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cluster.nodes</destination>
+        <expression>
+            proxy.process.cluster.nodes
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_XactsPerSecond() -->
+    <statistics
+        interval="10"
+	minimum="0">
+        <destination>proxy.node.http.user_agent_xacts_per_second</destination>
+        <destination scope="cluster">proxy.cluster.http.user_agent_xacts_per_second</destination>
+        <expression>
+            #proxy.process.http.incoming_requests *
+            $HRTIME_SECOND                  /
+            _DIFFTIME
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.user_agent_xacts_per_second</destination>
+        <destination scope="cluster">proxy.cluster.user_agent_xacts_per_second</destination>
+        <expression>
+            proxy.node.http.user_agent_xacts_per_second 
+        </expression>
+    </statistics>
+
+  
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_TotalDocumentsServed() -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.user_agents_total_documents_served</destination>
+        <expression>
+            proxy.node.http.user_agents_total_documents_served
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_DnsLookupsPerSecond() -->
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.dns.lookups_per_second</destination>
+        <destination scope="cluster">proxy.cluster.dns.lookups_per_second</destination>
+        <expression>
+            #proxy.process.dns.total_dns_lookups *
+            $HRTIME_SECOND  /
+            _DIFFTIME
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_HostdbHitRate() -->
+    <statistics
+        minimum="0"
+        interval="10">
+        <destination>proxy.node.hostdb.total_lookups_avg_10s</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.hostdb.total_lookups_avg_10s</destination>
+        <expression>
+            #proxy.process.hostdb.total_lookups
+        </expression>
+    </statistics>
+
+
+    <statistics
+        minimum="0"
+        interval="10">
+        <destination>proxy.node.hostdb.total_hits_avg_10s</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.hostdb.total_hits_avg_10s</destination>
+        <expression>
+            #proxy.process.hostdb.total_hits
+        </expression>
+    </statistics>
+
+
+    <statistics
+        minimum="0"
+        maximum="100"
+        interval="10">
+       <destination>proxy.node.hostdb.hit_ratio_avg_10s</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.hostdb.hit_ratio_avg_10s</destination>
+        <expression>
+            proxy.node.hostdb.total_hits_avg_10s    /
+            proxy.node.hostdb.total_lookups_avg_10s
+        </expression>
+    </statistics>
+
+
+    <statistics
+        minimum="0"
+        maximum="100">
+        <destination>proxy.node.hostdb.hit_ratio</destination>
+        <expression>
+            proxy.process.hostdb.total_hits    /
+            proxy.process.hostdb.total_lookups
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_Bytes() -->
+    <statistics>
+        <destination>proxy.node.http.user_agent_total_request_bytes</destination>
+        <destination scope="cluster">proxy.cluster.http.user_agent_total_request_bytes</destination>
+       <expression>
+            proxy.process.http.user_agent_request_document_total_size +
+            proxy.process.http.user_agent_request_header_total_size
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.user_agent_total_response_bytes</destination>
+        <destination scope="cluster">proxy.cluster.http.user_agent_total_response_bytes</destination>
+       <expression>
+            proxy.process.http.user_agent_response_document_total_size +
+            proxy.process.http.user_agent_response_header_total_size
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.origin_server_total_request_bytes</destination>
+        <destination scope="cluster">proxy.cluster.http.origin_server_total_request_bytes</destination>
+        <expression>
+            proxy.process.http.origin_server_request_document_total_size +
+            proxy.process.http.origin_server_request_header_total_size
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.http.origin_server_total_response_bytes</destination>
+        <destination scope="cluster">proxy.cluster.http.origin_server_total_response_bytes</destination>
+         <expression>
+            proxy.process.http.origin_server_response_document_total_size +
+            proxy.process.http.origin_server_response_header_total_size
+        </expression>
+    </statistics>
+
+
+        <!-- add up the downstream (client<=>proxy) traffic volume -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.user_agent_total_bytes</destination>
+        <expression>
+            proxy.node.http.user_agent_total_request_bytes  +
+            proxy.node.http.user_agent_total_response_bytes
+        </expression>
+    </statistics>
+
+
+        <!-- add up the upstream (client<=>proxy) traffic volume -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.origin_server_total_bytes</destination>
+        <expression>
+            proxy.node.http.origin_server_total_request_bytes  +
+            proxy.node.http.origin_server_total_response_bytes +
+            proxy.node.http.parent_proxy_total_request_bytes   +
+            proxy.node.http.parent_proxy_total_response_bytes
+        </expression>
+    </statistics>
+
+
+        <!-- PP_bytes is missing!! -->
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.bandwidth_hit_ratio</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.bandwidth_hit_ratio</destination>
+        <expression>
+            (
+            proxy.node.user_agent_total_bytes    -
+            proxy.node.origin_server_total_bytes
+            )                                    /
+            proxy.node.user_agent_total_bytes
+        </expression>
+    </statistics>
+
+
+    <statistics
+        interval="10"
+	minimum="0">
+        <destination>proxy.node.user_agent_total_bytes_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.user_agent_total_bytes_avg_10s</destination>
+        <expression>
+            #proxy.node.user_agent_total_bytes
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.origin_server_total_bytes_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.origin_server_total_bytes_avg_10s</destination>
+        <expression>
+            #proxy.node.origin_server_total_bytes
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.bandwidth_hit_ratio_avg_10s</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.bandwidth_hit_ratio_avg_10s</destination>
+        <expression>
+            (
+            proxy.node.user_agent_total_bytes_avg_10s    -
+            proxy.node.origin_server_total_bytes_avg_10s
+            )                                            /
+            proxy.node.user_agent_total_bytes_avg_10s
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100"
+        interval="10">
+        <destination>proxy.node.bandwidth_hit_ratio_avg_10s_int_pct</destination>
+        <expression>
+            proxy.node.bandwidth_hit_ratio_avg_10s *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_Throughput() -->
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.throughput</destination>
+        <destination scope="cluster">proxy.cluster.http.throughput</destination> 
+        <expression>
+            (
+            #proxy.node.http.user_agent_total_response_bytes
+            )                                                *
+            $HRTIME_SECOND                                   /
+            _DIFFTIME
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.client_throughput_out</destination>
+        <destination scope="cluster">proxy.cluster.client_throughput_out</destination>
+        <expression>
+            proxy.node.http.throughput *
+            $BYTES_TO_MBIT_SCALE
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_cacheHits() -->
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_hit_fresh_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_hit_fresh
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_hit_mem_fresh_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_hit_mem_fresh
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_hit_revalidated_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_hit_revalidated
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_hit_ims_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_hit_ims
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_hit_stale_served_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_hit_stale_served
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_miss_cold_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_miss_cold
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_miss_changed_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_miss_changed
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_miss_not_cacheable_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_miss_not_cacheable
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_miss_client_no_cache_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_miss_client_no_cache
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_miss_ims_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_miss_ims
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.cache_read_error_avg_10s</destination>
+        <expression>
+            #proxy.process.http.cache_read_error
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.cache_total_hits_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.cache_total_hits_avg_10s</destination>
+        <expression>
+            proxy.node.http.cache_hit_fresh_avg_10s        +
+            proxy.node.http.cache_hit_revalidated_avg_10s  +
+            proxy.node.http.cache_hit_ims_avg_10s          +
+            proxy.node.http.cache_hit_stale_served_avg_10s
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.cache_total_hits_mem_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.cache_total_hits_mem_avg_10s</destination>
+        <expression>
+            proxy.node.http.cache_hit_mem_fresh_avg_10s
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.cache_total_misses_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.cache_total_misses_avg_10s</destination>
+        <expression>
+            proxy.node.http.cache_miss_cold_avg_10s            +
+            proxy.node.http.cache_miss_changed_avg_10s         +
+            proxy.node.http.cache_miss_not_cacheable_avg_10s   +
+            proxy.node.http.cache_miss_client_no_cache_avg_10s +
+            proxy.node.http.cache_miss_ims_avg_10s             +
+            proxy.node.http.cache_read_error_avg_10s
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.cache_hit_ratio_avg_10s</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.cache_hit_ratio_avg_10s</destination>
+        <expression>
+            proxy.node.cache_total_hits_avg_10s   /
+            (
+            proxy.node.cache_total_hits_avg_10s   +
+            proxy.node.cache_total_misses_avg_10s
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.cache_hit_mem_ratio_avg_10s</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.cache_hit_mem_ratio_avg_10s</destination>
+        <expression>
+            proxy.node.cache_total_hits_mem_avg_10s   /
+            (
+            proxy.node.cache_total_hits_avg_10s   +
+            proxy.node.cache_total_misses_avg_10s
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100"
+        interval="10">
+        <destination>proxy.node.cache_hit_ratio_avg_10s_int_pct</destination>
+        <expression>
+	    proxy.node.cache_hit_ratio_avg_10s *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100"
+        interval="10">
+        <destination>proxy.node.cache_hit_mem_ratio_avg_10s_int_pct</destination>
+        <expression>
+	    proxy.node.cache_hit_mem_ratio_avg_10s *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache_total_hits</destination>
+        <destination scope="cluster">proxy.cluster.cache_total_hits</destination>
+        <expression>
+            proxy.process.http.cache_hit_fresh        +
+            proxy.process.http.cache_hit_revalidated  +
+            proxy.process.http.cache_hit_ims          +
+            proxy.process.http.cache_hit_stale_served
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache_total_hits_mem</destination>
+        <destination scope="cluster">proxy.cluster.cache_total_hits_mem</destination>
+        <expression>
+            proxy.process.http.cache_hit_mem_fresh
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache_total_misses</destination>
+        <destination scope="cluster">proxy.cluster.cache_total_misses</destination>
+        <expression>
+            proxy.process.http.cache_miss_cold            +
+            proxy.process.http.cache_miss_changed         +
+            proxy.process.http.cache_miss_not_cacheable   +
+            proxy.process.http.cache_miss_client_no_cache +
+            proxy.process.http.cache_miss_ims             +
+            proxy.process.http.cache_read_error
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.cache_hit_ratio</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.cache_hit_ratio</destination>
+        <expression>
+            proxy.node.cache_total_hits   /
+            (
+            proxy.node.cache_total_hits   +
+            proxy.node.cache_total_misses
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.cache_hit_mem_ratio</destination>
+        <destination scope="cluster" operation="re-calculate">proxy.cluster.cache_hit_mem_ratio</destination>
+        <expression>
+            proxy.node.cache_total_hits_mem   /
+            (
+            proxy.node.cache_total_hits   +
+            proxy.node.cache_total_misses
+            )
+        </expression>
+    </statistics>
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_cachePercent() -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache.bytes_free</destination>
+        <expression>
+            proxy.process.cache.bytes_total -
+            proxy.process.cache.bytes_used
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.cache.percent_free</destination>
+        <destination scope="cluster">proxy.cluster.cache.percent_free</destination>
+        <expression>
+            proxy.node.cache.bytes_free /
+            proxy.process.cache.bytes_total
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_TransactionPercentsAndMeanTimes() -->
+        <!-- counts_names -->
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.hit_fresh</destination>                            
+        <expression>
+            #proxy.process.http.transaction_counts.hit_fresh
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.hit_revalidated</destination>                      
+        <expression>
+            #proxy.process.http.transaction_counts.hit_revalidated
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.miss_cold</destination>                            
+        <expression>
+            #proxy.process.http.transaction_counts.miss_cold
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.miss_changed</destination>                         
+        <expression>
+            #proxy.process.http.transaction_counts.miss_changed
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache</destination>                 
+        <expression>
+            #proxy.process.http.transaction_counts.miss_client_no_cache
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable</destination>                   
+        <expression>
+            #proxy.process.http.transaction_counts.miss_not_cacheable
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.connect_failed</destination>                
+        <expression>
+            #proxy.process.http.transaction_counts.errors.connect_failed
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.aborts</destination>                        
+        <expression>
+            #proxy.process.http.transaction_counts.errors.aborts
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts</destination>               
+        <expression>
+            #proxy.process.http.transaction_counts.errors.possible_aborts
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups</destination>
+        <expression>
+            #proxy.process.http.transaction_counts.errors.pre_accept_hangups
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.early_hangups</destination>                 
+        <expression>
+            #proxy.process.http.transaction_counts.errors.early_hangups
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups</destination>                 
+        <expression>
+            #proxy.process.http.transaction_counts.errors.empty_hangups
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_counts_avg_10s.errors.other</destination>                         
+        <expression>
+            #proxy.process.http.transaction_counts.errors.other
+        </expression>
+    </statistics>
+
+
+        <!-- StatAggregation.cc::frac_names() -->
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.hit_fresh</destination>                            
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.hit_revalidated</destination>                      
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_cold</destination>                            
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.miss_cold /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_changed</destination>
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.miss_changed /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_client_no_cache</destination>                 
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_not_cacheable</destination>
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.connect_failed</destination>                
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.aborts</destination>                        
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.possible_aborts</destination>               
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.pre_accept_hangups</destination>
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.early_hangups</destination>                 
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.empty_hangups</destination>                 
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="1"
+        interval="10">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.other</destination>
+        <expression>
+            proxy.node.http.transaction_counts_avg_10s.errors.other /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+        <!-- frac_int_names -->
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.hit_fresh_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.hit_fresh *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.hit_revalidated_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.hit_revalidated *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_cold_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.miss_cold *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_changed_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.miss_changed *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_client_no_cache_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.miss_client_no_cache *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.miss_not_cacheable_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.miss_not_cacheable *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.connect_failed_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.connect_failed *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.aborts_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.aborts *
+            $PCT_TO_INTPCT_SCALE
+       </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.possible_aborts_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.possible_aborts *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.pre_accept_hangups_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.pre_accept_hangups *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.early_hangups_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.early_hangups *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.empty_hangups_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.empty_hangups *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+	maximum="100">
+        <destination>proxy.node.http.transaction_frac_avg_10s.errors.other_int_pct</destination>
+        <expression>
+            proxy.node.http.transaction_frac_avg_10s.errors.other *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+        <!-- avgtime_names -->
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.hit_fresh</destination>
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE                  *
+            #proxy.process.http.transaction_totaltime.hit_fresh /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.hit_revalidated</destination>                      
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE         *
+            #proxy.process.http.transaction_totaltime.hit_revalidated /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.miss_cold</destination>                            
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE   *
+            #proxy.process.http.transaction_totaltime.miss_cold /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.miss_changed</destination>                         
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE      *
+            #proxy.process.http.transaction_totaltime.miss_changed /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.miss_client_no_cache</destination>                 
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE              *
+            #proxy.process.http.transaction_totaltime.miss_client_no_cache /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.miss_not_cacheable</destination>                   
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE            *
+            #proxy.process.http.transaction_totaltime.miss_not_cacheable /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.connect_failed</destination>                
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE               *
+            #proxy.process.http.transaction_totaltime.errors.connect_failed /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.aborts</destination>                        
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE       *
+            #proxy.process.http.transaction_totaltime.errors.aborts /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.possible_aborts</destination>               
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE                *
+            #proxy.process.http.transaction_totaltime.errors.possible_aborts /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.pre_accept_hangups</destination>
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE                   *
+            #proxy.process.http.transaction_totaltime.errors.pre_accept_hangups /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.early_hangups</destination>                 
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE              *
+            #proxy.process.http.transaction_totaltime.errors.early_hangups /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.empty_hangups</destination>                 
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE              *
+            #proxy.process.http.transaction_totaltime.errors.empty_hangups /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.http.transaction_msec_avg_10s.errors.other</destination>                         
+        <expression>
+            $SECOND_TO_MILLISECOND_SCALE      *
+            #proxy.process.http.transaction_totaltime.errors.other /
+            (
+            proxy.node.http.transaction_counts_avg_10s.hit_fresh                 +
+            proxy.node.http.transaction_counts_avg_10s.hit_revalidated           +
+            proxy.node.http.transaction_counts_avg_10s.miss_cold                 +
+            proxy.node.http.transaction_counts_avg_10s.miss_changed              +
+            proxy.node.http.transaction_counts_avg_10s.miss_client_no_cache      +
+            proxy.node.http.transaction_counts_avg_10s.miss_not_cacheable        +
+            proxy.node.http.transaction_counts_avg_10s.errors.connect_failed     +
+            proxy.node.http.transaction_counts_avg_10s.errors.aborts             +
+            proxy.node.http.transaction_counts_avg_10s.errors.possible_aborts    +
+            proxy.node.http.transaction_counts_avg_10s.errors.pre_accept_hangups +
+            proxy.node.http.transaction_counts_avg_10s.errors.early_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.empty_hangups      +
+            proxy.node.http.transaction_counts_avg_10s.errors.other
+            )
+        </expression>
+    </statistics>
+
+
+	<!-- ########################################################################### -->
+    <!-- StatAggregation::Ag_Connections() -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.current_client_connections</destination>
+        <destination scope="cluster">proxy.cluster.current_client_connections</destination>
+        <expression>
+            proxy.node.http.user_agent_current_connections_count
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.current_server_connections</destination>
+        <destination scope="cluster">proxy.cluster.current_server_connections</destination>
+        <expression>
+            proxy.node.http.origin_server_current_connections_count +
+            proxy.node.http.current_parent_proxy_connections
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.current_cache_connections</destination>
+        <destination scope="cluster">proxy.cluster.current_cache_connections</destination>
+        <expression>
+            proxy.node.http.cache_current_connections_count
+        </expression>
+    </statistics>
+
+
+    <!-- Others -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.client_throughput_out_kbit</destination>
+        <destination scope="cluster">proxy.cluster.client_throughput_out_kbit</destination>
+        <expression>
+            proxy.node.client_throughput_out *
+            $MBIT_TO_KBIT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache_hit_ratio_int_pct</destination>
+        <destination scope="cluster">proxy.cluster.cache_hit_ratio_int_pct</destination>
+        <expression>
+            proxy.node.cache_hit_ratio *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache_hit_mem_ratio_int_pct</destination>
+        <destination scope="cluster">proxy.cluster.cache_hit_mem_ratio_int_pct</destination>
+        <expression>
+            proxy.node.cache_hit_mem_ratio *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.bandwidth_hit_ratio_int_pct</destination>
+        <destination scope="cluster">proxy.cluster.bandwidth_hit_ratio_int_pct</destination>
+        <expression>
+            proxy.node.bandwidth_hit_ratio *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache.percent_free_int_pct</destination>
+        <destination scope="cluster">proxy.cluster.cache.percent_free_int_pct</destination>
+        <expression>
+            proxy.node.cache.percent_free *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.hostdb.hit_ratio_int_pct</destination>
+        <destination scope="cluster">proxy.cluster.hostdb.hit_ratio_int_pct</destination>
+        <expression>
+            proxy.node.hostdb.hit_ratio *
+            $PCT_TO_INTPCT_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache.bytes_total_mb</destination>
+        <expression>
+            proxy.process.cache.bytes_total *
+            $BYTES_TO_MB_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.cache.bytes_free_mb</destination>
+        <expression>
+            proxy.node.cache.bytes_free *
+            $BYTES_TO_MB_SCALE
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination>proxy.cluster.cache.bytes_free_mb</destination>
+        <expression>
+            proxy.cluster.cache.bytes_free *
+            $BYTES_TO_MB_SCALE
+        </expression>
+    </statistics>
+
+
+<!-- -->
+
+    <statistics
+	minimum="0">
+        <destination scope="cluster">proxy.cluster.http.current_parent_proxy_connections</destination>
+        <expression>
+            proxy.node.http.current_parent_proxy_connections
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination scope="cluster">proxy.cluster.http.parent_proxy_total_request_bytes</destination>
+        <expression>
+        proxy.node.http.parent_proxy_total_request_bytes
+        </expression>
+    </statistics>
+
+
+    <statistics
+	minimum="0">
+        <destination scope="cluster">proxy.cluster.http.parent_proxy_total_response_bytes</destination>
+        <expression>
+             proxy.node.http.parent_proxy_total_response_bytes
+        </expression>
+    </statistics>
+
+    <!-- Logging -->
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.event_log_access_ok</destination>
+	<destination scope="cluster">proxy.cluster.log.event_log_access_ok</destination>
+        <expression>
+	    proxy.process.log.event_log_access_ok
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.event_log_access_skip</destination>
+	<destination scope="cluster">proxy.cluster.log.event_log_access_skip</destination>
+        <expression>
+	    proxy.process.log.event_log_access_skip
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.event_log_access_aggr</destination>
+	<destination scope="cluster">proxy.cluster.log.event_log_access_aggr</destination>
+        <expression>
+	    proxy.process.log.event_log_access_aggr
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.event_log_access_full</destination>
+	<destination scope="cluster">proxy.cluster.log.event_log_access_full</destination>
+        <expression>
+            proxy.process.log.event_log_access_full
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.event_log_access_fail</destination>
+	<destination scope="cluster">proxy.cluster.log.event_log_access_fail</destination>
+        <expression>
+            proxy.process.log.event_log_access_fail
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.num_lost_before_sent_to_network</destination>
+	<destination scope="cluster">proxy.cluster.log.num_lost_before_sent_to_network</destination>
+        <expression>
+            proxy.process.log.num_lost_before_sent_to_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.num_sent_to_network</destination>
+	<destination scope="cluster">proxy.cluster.log.num_sent_to_network</destination>
+        <expression>
+            proxy.process.log.num_sent_to_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.bytes_lost_before_sent_to_network</destination>
+	<destination scope="cluster">proxy.cluster.log.bytes_lost_before_sent_to_network</destination>
+        <expression>
+            proxy.process.log.bytes_lost_before_sent_to_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.bytes_sent_to_network</destination>
+	<destination scope="cluster">proxy.cluster.log.bytes_sent_to_network</destination>
+        <expression>
+            proxy.process.log.bytes_sent_to_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.num_received_from_network</destination>
+	<destination scope="cluster">proxy.cluster.log.num_received_from_network</destination>
+        <expression>
+            proxy.process.log.num_received_from_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.bytes_received_from_network</destination>
+	<destination scope="cluster">proxy.cluster.log.bytes_received_from_network</destination>
+        <expression>
+            proxy.process.log.bytes_received_from_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.bytes_lost_before_preproc</destination>
+	<destination scope="cluster">proxy.cluster.log.bytes_lost_before_preproc</destination>
+        <expression>
+            proxy.process.log.bytes_lost_before_preproc
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.num_lost_before_flush_to_disk</destination>
+	<destination scope="cluster">proxy.cluster.log.num_lost_before_flush_to_disk</destination>
+        <expression>
+            proxy.process.log.num_lost_before_flush_to_disk
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.bytes_lost_before_flush_to_disk</destination>
+	<destination scope="cluster">proxy.cluster.log.bytes_lost_before_flush_to_disk</destination>
+        <expression>
+            proxy.process.log.bytes_lost_before_flush_to_disk
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0">
+        <destination>proxy.node.log.bytes_lost_before_written_to_disk</destination>
+	<destination scope="cluster">proxy.cluster.log.bytes_lost_before_written_to_disk</destination>
+        <expression>
+            proxy.process.log.bytes_lost_before_written_to_disk
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.log.bytes_sent_to_network_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.log.bytes_sent_to_network_avg_10s</destination>
+        <expression>
+            #proxy.process.log.bytes_sent_to_network
+        </expression>
+    </statistics>
+
+    <statistics
+	minimum="0"
+        interval="10">
+        <destination>proxy.node.log.bytes_received_from_network_avg_10s</destination>
+        <destination scope="cluster">proxy.cluster.log.bytes_received_from_network_avg_10s</destination>
+        <expression>
+            #proxy.process.log.bytes_received_from_network
+        </expression>
+    </statistics>
+
+</ink:statistics>
+
+
diff --git a/proxy/config/storage.config.default.in b/proxy/config/storage.config.default.in
new file mode 100644
index 00000000..5a3b39fe
--- /dev/null
+++ b/proxy/config/storage.config.default.in
@@ -0,0 +1,49 @@
+#
+# Storage Configuration file
+#
+#
+# The storage configuration is a list of all the storage to
+# be used by the cache.
+#
+#
+#############################################################
+# Using a file for the cache storage
+#
+# <pathname> <size>
+#
+# Where 'pathname' is full path to the directory where you want
+# the cache-file to live and 'size' is size in bytes
+#
+# Example: 128MB cache file(@exp_cachedir@/cache.db)
+#      @exp_cachedir@ 128M
+#
+# Example: 144MB cache file(@exp_cachedir@/cache.db)
+#          assuming prefix of '@prefix@'
+#      @rel_cachedir@ 150994944
+#
+# Example: 512MB cache file(@exp_cachedir@/cache.db)
+#          assuming prefix of '@prefix@'
+#      @rel_cachedir@ 512M
+#
+#
+#############################################################
+##              O_DIRECT Specific Configuration            ##
+#############################################################
+#
+# Examples: Using O_DIRECT on disks (Linux kernel >= 2.6.3,
+# FreeBSD > 5.3)
+#
+#      /dev/sdb             # Linux
+#      /dev/ada1            # FreeBSD
+#
+#
+# Note that when using these raw devices in O_DIRECT mode, you
+# do not need to specify the partition size. It's automatically
+# detected. For more examples and a complete documentation see
+# http://trafficserver.apache.org/docs/trunk/admin/configuration-files/storage.config
+#
+#
+# A small default cache (256MB). This is set to allow for the regression test to succeed
+# most likely you'll want to use a larger cache. And, we definitely recommend the use
+# of raw devices for production caches.
+@rel_cachedir@ 256M
diff --git a/proxy/config/throttle_error.html.example b/proxy/config/throttle_error.html.example
new file mode 100644
index 00000000..b6fad642
--- /dev/null
+++ b/proxy/config/throttle_error.html.example
@@ -0,0 +1,32 @@
+<!--  blank.html
+      This is an example of an error message which will be displayed to
+      users when the Traffic Server is overloaded.
+      Modify and copy/move this file to throttle_error.html. -->
+
+<!-------------------------------------------------------------------------
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  ------------------------------------------------------------------------->
+
+<html>
+<head>
+<title>Server Overloaded</title>
+</head>
+<body>
+<H1>Server Overloaded</H1>
+The server is temporarily overloaded. Please try again later.
+</body>
+</html>
diff --git a/proxy/config/update.config.default b/proxy/config/update.config.default
new file mode 100644
index 00000000..9b0e0ee4
--- /dev/null
+++ b/proxy/config/update.config.default
@@ -0,0 +1,43 @@
+# 
+###############################################################################
+# Content Management -- Scheduled Object Update
+###############################################################################
+#
+# Entry line syntax:
+#   <URL>\<Request Headers>\<Offset Hour>\<Interval>\<Recursion depth>\
+#
+#    1) URL
+#	Syntax validated.
+#
+#    2) Request Headers
+#	Passed in each "GET" request.
+#	Semicolon separated list of headers.
+#
+#    3) Offset Hour
+#	Base hour used to derive the update periods.
+#	Range: 00-23 Hours
+#    
+#    4) Interval
+#	Interval at which updates should occur starting at 
+#	"Offset Hour".  Stored in units of seconds.
+#
+#   	Example: Offset_Hour = 12 (12 Noon), Interval = Every 4 Hours
+#		would result in updates at 
+#		[12:00, 16:00, 20:00, 00:00, 04:00, 08:00]
+#
+#   	Example: Offset_Hour = 13 (1 pm), Interval = Every 24 Hours
+#		would result in updates at [13:00]
+#					    
+#    5) Recursion depth (applicable only for http)
+#    	Starting with the given URL, recursively update referenced URL(s)
+#	up to the specified depth.
+#
+###############################################################################
+#
+# HTTP example:
+#
+#  URL & Request headers, offset hour 13 (1 pm), 
+#  offset interval every 1 hour, recursion depth of 5 
+#
+#  http://www.example.com\User-Agent: noname user agent\13\3600\5\
+###############################################################################
diff --git a/proxy/config/vaddrs.config.default b/proxy/config/vaddrs.config.default
new file mode 100644
index 00000000..01233a8b
--- /dev/null
+++ b/proxy/config/vaddrs.config.default
@@ -0,0 +1,22 @@
+# Virtual IP Address Configuration
+#
+# The purpose of this file is to specify virtual IP addresses
+# for Traffic Server. This DOES NOT actually bind to these
+# addresses; ATS either listens to all or the address specified
+# through proxy.local.incoming_ip_to_bind.
+#
+# The vips specified here will be verified and broadcast across
+# the cluster. Any conflicts will be logged as errors.
+#
+# In order to enable these checks you must also set:
+#     CONFIG proxy.config.vmap.enabled INT 1
+# In records.conf
+#
+# UNIX
+#   Format:
+#     <virtual IP address> <interface> <sub-interface>
+#
+#   Example:
+#     209.1.33.10 hme0 10
+#     209.1.33.11 hme0 11
+#
diff --git a/proxy/config/volume.config.default b/proxy/config/volume.config.default
new file mode 100644
index 00000000..537c52d1
--- /dev/null
+++ b/proxy/config/volume.config.default
@@ -0,0 +1,30 @@
+#
+# 
+# This file specifies the various volumes, their sizes and the 
+# protocol they belong to. Use this file in conjunction with the 
+# hosting.config file.
+#
+#  Each line consists of a tag value pair.
+#    volume=<volume_number> scheme=<protocol_type> size=<volume_size>
+#
+#  volume_number can be any value between 1 and 255. 
+#  This limits the maximum number of volumes to 255. 
+#  Volume number 0 is reserved for the special free volume. 
+#  Each line MUST have a distinct volume number.
+#
+#  The only scheme currently supported is 'http.
+#
+#  volume_size can either be specified in percentage of the total
+#  cache space or absolute value. It must be a multiple of 128 Megabytes,
+#  with 128 Megabytes being the smallest size possible. If specified in 
+#  percentage, the size is rounded down to the closest multiple of 
+#  128 Megabytes. A volume can be as big as the whole cache. 
+#  Each volume is striped across several disks to 
+#  achieve parallel I/O. For example, if there are 4 disks, 
+#  a 1 Gigabyte volume will have 256 Megabytes on each
+#  disk (assuming each disk has enough free space available).
+#
+# To create one volume of size 10% of the total cache space and 
+# another 1 Gig  volume, 
+#  volume=1 scheme=http size=10%
+#  volume=2 scheme=http size=1024
diff --git a/proxy/congest/Congestion.cc b/proxy/congest/Congestion.cc
new file mode 100644
index 00000000..974e843a
--- /dev/null
+++ b/proxy/congest/Congestion.cc
@@ -0,0 +1,737 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  Congestion.cc - Content and User Access Control
+ *
+ *
+ ****************************************************************************/
+#include "libts.h"
+#include "I_Net.h"
+#include "CongestionDB.h"
+#include "Congestion.h"
+#include "ControlMatcher.h"
+#include "ProxyConfig.h"
+
+RecRawStatBlock *congest_rsb;
+
+InkRand CongestionRand(123);
+
+static const char *congestPrefix = "[CongestionControl]";
+
+static const matcher_tags congest_dest_tags = {
+  "dest_host",
+  "dest_domain",
+  "dest_ip",
+  NULL,
+  NULL,
+  "host_regex",
+  true
+};
+
+/* default congestion control values */
+
+char *DEFAULT_error_page = NULL;
+int DEFAULT_max_connection_failures = 5;
+int DEFAULT_fail_window = 120;
+int DEFAULT_proxy_retry_interval = 10;
+int DEFAULT_client_wait_interval = 300;
+int DEFAULT_wait_interval_alpha = 30;
+int DEFAULT_live_os_conn_timeout = 60;
+int DEFAULT_live_os_conn_retries = 2;
+int DEFAULT_dead_os_conn_timeout = 15;
+int DEFAULT_dead_os_conn_retries = 1;
+int DEFAULT_max_connection = -1;
+char *DEFAULT_congestion_scheme_str = NULL;
+int DEFAULT_congestion_scheme = PER_IP;
+
+/* congestion control limits */
+#define CONG_RULE_MAX_max_connection_failures \
+             (1<<(sizeof(cong_hist_t) * 8))
+
+#define CONG_RULE_ULIMITED_max_connection_failures -1
+#define CONG_RULE_ULIMITED_mac_connection -1
+
+struct CongestionMatcherTable :
+  public ControlMatcher<CongestionControlRecord, CongestionControlRule>,
+  public ConfigInfo
+{
+  CongestionMatcherTable(const char * file_var, const char * name, const matcher_tags * tags)
+    : ControlMatcher<CongestionControlRecord, CongestionControlRule>(file_var, name, tags) {
+  }
+
+  static void reconfigure();
+
+  static int configid;
+};
+
+int CongestionMatcherTable::configid = 0;
+
+static CongestionMatcherTable *CongestionMatcher = NULL;
+static ConfigUpdateHandler<CongestionMatcherTable> * CongestionControlUpdate;
+int congestionControlEnabled = 0;
+int congestionControlLocalTime = 0;
+
+CongestionControlRecord::CongestionControlRecord(const CongestionControlRecord & rec)
+{
+  prefix = ats_strdup(rec.prefix);
+  prefix_len = rec.prefix_len;
+  port = rec.port;
+  congestion_scheme = rec.congestion_scheme;
+  error_page = ats_strdup(rec.error_page);
+  max_connection_failures = rec.max_connection_failures;
+  fail_window = rec.fail_window;
+  proxy_retry_interval = rec.proxy_retry_interval;
+  client_wait_interval = rec.client_wait_interval;
+  wait_interval_alpha = rec.wait_interval_alpha;
+  live_os_conn_timeout = rec.live_os_conn_timeout;
+  live_os_conn_retries = rec.live_os_conn_retries;
+  dead_os_conn_timeout = rec.dead_os_conn_timeout;
+  dead_os_conn_retries = rec.dead_os_conn_retries;
+  max_connection = rec.max_connection;
+  pRecord = NULL;
+  ref_count = 1;
+  line_num = rec.line_num;
+  rank = 0;
+}
+
+void
+CongestionControlRecord::setdefault()
+{
+  cleanup();
+  congestion_scheme = DEFAULT_congestion_scheme;
+  port = 0;
+  prefix_len = 0;
+  rank = 0;
+  max_connection_failures = DEFAULT_max_connection_failures;
+  fail_window = DEFAULT_fail_window;
+  proxy_retry_interval = DEFAULT_proxy_retry_interval;
+  client_wait_interval = DEFAULT_client_wait_interval;
+  wait_interval_alpha = DEFAULT_wait_interval_alpha;
+  live_os_conn_timeout = DEFAULT_live_os_conn_timeout;
+  live_os_conn_retries = DEFAULT_live_os_conn_retries;
+  dead_os_conn_timeout = DEFAULT_dead_os_conn_timeout;
+  dead_os_conn_retries = DEFAULT_dead_os_conn_retries;
+  max_connection = DEFAULT_max_connection;
+}
+
+char *
+CongestionControlRecord::validate()
+{
+  char *error_buf = NULL;
+  int error_len = 1024;
+
+#define IsGt0(var)\
+  if ( var < 1 ) { \
+    error_buf = (char*)ats_malloc(error_len); \
+    snprintf(error_buf, error_len, "line %d: invalid %s = %d, %s must > 0", \
+	    line_num, #var, var, #var); \
+    cleanup(); \
+    return error_buf; \
+  }
+
+  if (error_page == NULL)
+    error_page = ats_strdup(DEFAULT_error_page);
+  if (max_connection_failures >= CONG_RULE_MAX_max_connection_failures ||
+      (max_connection_failures <= 0 && max_connection_failures != CONG_RULE_ULIMITED_max_connection_failures)
+    ) {
+    error_buf = (char *)ats_malloc(error_len);
+    snprintf(error_buf, error_len, "line %d: invalid %s = %d not in [1, %d) range",
+             line_num, "max_connection_failures", max_connection_failures, CONG_RULE_MAX_max_connection_failures);
+    cleanup();
+    return error_buf;
+  }
+
+  IsGt0(fail_window);
+  IsGt0(proxy_retry_interval);
+  IsGt0(client_wait_interval);
+  IsGt0(wait_interval_alpha);
+  IsGt0(live_os_conn_timeout);
+  IsGt0(live_os_conn_retries);
+  IsGt0(dead_os_conn_timeout);
+  IsGt0(dead_os_conn_retries);
+  // max_connection_failures <= 0  no failure num control
+  // max_connection == -1 no max_connection control
+  // max_connection_failures <= 0 && max_connection == -1 no congestion control for the rule
+  // max_connection == 0, no connection allow to the origin server for the rule
+#undef IsGt0
+  return error_buf;
+}
+
+char *
+CongestionControlRecord::Init(matcher_line * line_info)
+{
+  char *errBuf;
+  const int errBufLen = 1024;
+  const char *tmp;
+  char *label;
+  char *val;
+  line_num = line_info->line_num;
+
+  /* initialize the rule to defaults */
+  setdefault();
+
+  for (int i = 0; i < MATCHER_MAX_TOKENS; i++) {
+    label = line_info->line[0][i];
+    val = line_info->line[1][i];
+
+    if (label == NULL) {
+      continue;
+    }
+    if (strcasecmp(label, "max_connection_failures") == 0) {
+      max_connection_failures = atoi(val);
+    } else if (strcasecmp(label, "fail_window") == 0) {
+      fail_window = atoi(val);
+    } else if (strcasecmp(label, "proxy_retry_interval") == 0) {
+      proxy_retry_interval = atoi(val);
+    } else if (strcasecmp(label, "client_wait_interval") == 0) {
+      client_wait_interval = atoi(val);
+    } else if (strcasecmp(label, "wait_interval_alpha") == 0) {
+      wait_interval_alpha = atoi(val);
+    } else if (strcasecmp(label, "live_os_conn_timeout") == 0) {
+      live_os_conn_timeout = atoi(val);
+    } else if (strcasecmp(label, "live_os_conn_retries") == 0) {
+      live_os_conn_retries = atoi(val);
+    } else if (strcasecmp(label, "dead_os_conn_timeout") == 0) {
+      dead_os_conn_timeout = atoi(val);
+    } else if (strcasecmp(label, "dead_os_conn_retries") == 0) {
+      dead_os_conn_retries = atoi(val);
+    } else if (strcasecmp(label, "max_connection") == 0) {
+      max_connection = atoi(val);
+    } else if (strcasecmp(label, "congestion_scheme") == 0) {
+      if (!strcasecmp(val, "per_ip")) {
+        congestion_scheme = PER_IP;
+      } else if (!strcasecmp(val, "per_host")) {
+        congestion_scheme = PER_HOST;
+      } else {
+        congestion_scheme = PER_IP;
+      }
+    } else if (strcasecmp(label, "error_page") == 0) {
+      error_page = ats_strdup(val);
+    } else if (strcasecmp(label, "prefix") == 0) {
+      prefix = ats_strdup(val);
+      prefix_len = strlen(prefix);
+      rank += 1;
+      // prefix will be used in the ControlBase
+      continue;
+    } else if (strcasecmp(label, "port") == 0) {
+      port = atoi(val);
+      rank += 2;
+      // port will be used in the ControlBase;
+      continue;
+    } else
+      continue;
+    // Consume the label/value pair we used
+    line_info->line[0][i] = NULL;
+    line_info->num_el--;
+  }
+  if (line_info->num_el > 0) {
+    tmp = ProcessModifiers(line_info);
+
+    if (tmp != NULL) {
+      errBuf = (char *)ats_malloc(errBufLen * sizeof(char));
+      snprintf(errBuf, errBufLen, "%s %s at line %d in congestion.config", congestPrefix, tmp, line_num);
+      return errBuf;
+    }
+
+  }
+
+  char *err_msg = validate();
+  if (err_msg == NULL) {
+    pRecord = new CongestionControlRecord(*this);
+  }
+  return err_msg;
+}
+
+void
+CongestionControlRecord::UpdateMatch(CongestionControlRule * pRule, RequestData * rdata)
+{
+/*
+ * Select the first matching rule specified in congestion.config
+ * rank     Matches
+ *   3       dest && prefix && port
+ *   2       dest && port
+ *   1       dest && prefix
+ *   0       dest
+ */
+  if (pRule->record == 0 ||
+      pRule->record->rank < rank || (pRule->record->line_num > line_num && pRule->record->rank == rank)) {
+    if (rank > 0) {
+      if (rdata->data_type() == RequestData::RD_CONGEST_ENTRY) {
+        // Enforce the same port and prefix
+        if (port != 0 && port != ((CongestionEntry *) rdata)->pRecord->port)
+          return;
+        if (prefix != NULL && ((CongestionEntry *) rdata)->pRecord->prefix == NULL)
+          return;
+        if (prefix != NULL && strncmp(prefix, ((CongestionEntry *) rdata)->pRecord->prefix, prefix_len))
+          return;
+      } else if (!this->CheckModifiers((HttpRequestData *) rdata)) {
+        return;
+      }
+    }
+    pRule->record = this;
+    Debug("congestion_config", "Matched with record %p at line %d", this, line_num);
+  }
+}
+
+void
+CongestionControlRecord::Print()
+{
+#define PrintNUM(var) \
+  Debug("congestion_config", "%30s = %d", #var, var);
+#define PrintSTR(var) \
+  Debug("congestion_config", "%30s = %s", #var, (var == NULL? "NULL" : var));
+
+  PrintNUM(line_num);
+  PrintSTR(prefix);
+  PrintNUM(congestion_scheme);
+  PrintSTR(error_page);
+  PrintNUM(max_connection_failures);
+  PrintNUM(fail_window);
+  PrintNUM(proxy_retry_interval);
+  PrintNUM(client_wait_interval);
+  PrintNUM(wait_interval_alpha);
+  PrintNUM(live_os_conn_timeout);
+  PrintNUM(live_os_conn_retries);
+  PrintNUM(dead_os_conn_timeout);
+  PrintNUM(dead_os_conn_retries);
+  PrintNUM(max_connection);
+#undef PrintNUM
+#undef PrintSTR
+}
+
+extern void initCongestionDB();
+
+// place holder for congestion control enable config
+static int
+CongestionControlEnabledChanged(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                                RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  if (congestionControlEnabled == 1 || congestionControlEnabled == 2) {
+    revalidateCongestionDB();
+  }
+  return 0;
+}
+
+static int
+CongestionControlDefaultSchemeChanged(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                                      RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  if (strcasecmp(DEFAULT_congestion_scheme_str, "per_host") == 0) {
+    DEFAULT_congestion_scheme = PER_HOST;
+  } else {
+    DEFAULT_congestion_scheme = PER_IP;
+  }
+  return 0;
+}
+
+//-----------------------------------------------
+// hack for link the RegressionTest into the
+//  TS binary
+//-----------------------------------------------
+extern void init_CongestionRegressionTest();
+
+void
+initCongestionControl()
+{
+  // TODO: This is very, very strange, we run the regression tests even on a normal startup??
+#if TS_HAS_TESTS
+  init_CongestionRegressionTest();
+#endif
+  ink_assert(CongestionMatcher == NULL);
+// register the stats variables
+  register_congest_stats();
+
+  CongestionControlUpdate = new ConfigUpdateHandler<CongestionMatcherTable>();
+
+// register config variables
+  REC_EstablishStaticConfigInt32(congestionControlEnabled, "proxy.config.http.congestion_control.enabled");
+  REC_EstablishStaticConfigInt32(DEFAULT_max_connection_failures, "proxy.config.http.congestion_control.default.max_connection_failures");
+  REC_EstablishStaticConfigInt32(DEFAULT_fail_window, "proxy.config.http.congestion_control.default.fail_window");
+  REC_EstablishStaticConfigInt32(DEFAULT_proxy_retry_interval, "proxy.config.http.congestion_control.default.proxy_retry_interval");
+  REC_EstablishStaticConfigInt32(DEFAULT_client_wait_interval, "proxy.config.http.congestion_control.default.client_wait_interval");
+  REC_EstablishStaticConfigInt32(DEFAULT_wait_interval_alpha, "proxy.config.http.congestion_control.default.wait_interval_alpha");
+  REC_EstablishStaticConfigInt32(DEFAULT_live_os_conn_timeout, "proxy.config.http.congestion_control.default.live_os_conn_timeout");
+  REC_EstablishStaticConfigInt32(DEFAULT_live_os_conn_retries, "proxy.config.http.congestion_control.default.live_os_conn_retries");
+  REC_EstablishStaticConfigInt32(DEFAULT_dead_os_conn_timeout, "proxy.config.http.congestion_control.default.dead_os_conn_timeout");
+  REC_EstablishStaticConfigInt32(DEFAULT_dead_os_conn_retries, "proxy.config.http.congestion_control.default.dead_os_conn_retries");
+  REC_EstablishStaticConfigInt32(DEFAULT_max_connection, "proxy.config.http.congestion_control.default.max_connection");
+  REC_EstablishStaticConfigStringAlloc(DEFAULT_congestion_scheme_str, "proxy.config.http.congestion_control.default.congestion_scheme");
+  REC_EstablishStaticConfigStringAlloc(DEFAULT_error_page, "proxy.config.http.congestion_control.default.error_page");
+  REC_EstablishStaticConfigInt32(congestionControlLocalTime, "proxy.config.http.congestion_control.localtime");
+  {
+    RecData recdata;
+    recdata.rec_int = 0;
+    CongestionControlDefaultSchemeChanged(NULL, RECD_NULL, recdata, NULL);
+  }
+
+  if (congestionControlEnabled) {
+    CongestionMatcherTable::reconfigure();
+  } else {
+    Debug("congestion_config", "congestion control disabled");
+  }
+
+  RecRegisterConfigUpdateCb("proxy.config.http.congestion_control.default.congestion_scheme", &CongestionControlDefaultSchemeChanged, NULL);
+  RecRegisterConfigUpdateCb("proxy.config.http.congestion_control.enabled", &CongestionControlEnabledChanged, NULL);
+
+  CongestionControlUpdate->attach("proxy.config.http.congestion_control.filename");
+}
+
+void
+CongestionMatcherTable::reconfigure()
+{
+  Note("congestion control config changed, reloading");
+  CongestionMatcher = new CongestionMatcherTable("proxy.config.http.congestion_control.filename", congestPrefix, &congest_dest_tags);
+
+#ifdef DEBUG_CONGESTION_MATCHER
+  CongestionMatcher->Print();
+#endif
+
+  configid = configProcessor.set(configid, CongestionMatcher);
+  if (congestionControlEnabled) {
+    revalidateCongestionDB();
+  }
+}
+
+CongestionControlRecord *
+CongestionControlled(RequestData * rdata)
+{
+  if (congestionControlEnabled) {
+    CongestionControlRule result;
+    CongestionMatcher->Match(rdata, &result);
+    if (result.record) {
+      return result.record->pRecord;
+    }
+  } else {
+    return NULL;
+  }
+  return NULL;
+}
+
+uint64_t
+make_key(char *hostname, sockaddr const* ip, CongestionControlRecord * record)
+{
+  int host_len = 0;
+  if (hostname) {
+    host_len = strlen(hostname);
+  }
+  return make_key(hostname, host_len, ip, record);
+}
+
+uint64_t
+make_key(char *hostname, int len, sockaddr const* ip, CongestionControlRecord * record)
+{
+  INK_MD5 md5;
+  INK_DIGEST_CTX ctx;
+  ink_code_incr_md5_init(&ctx);
+  if (record->congestion_scheme == PER_HOST && len > 0)
+    ink_code_incr_md5_update(&ctx, hostname, len);
+  else
+    ink_code_incr_md5_update(&ctx, reinterpret_cast<char const*>(ats_ip_addr8_cast(ip)), ats_ip_addr_size(ip));
+  if (record->port != 0) {
+    unsigned short p = record->port;
+    p = htons(p);
+    ink_code_incr_md5_update(&ctx, (char *) &p, 2);
+  }
+  if (record->prefix != NULL) {
+    ink_code_incr_md5_update(&ctx, record->prefix, record->prefix_len);
+  }
+  ink_code_incr_md5_final((char *) &md5, &ctx);
+
+  return md5.fold();
+}
+
+uint64_t
+make_key(char *hostname, int len, sockaddr const* ip, char *prefix, int prelen, short port)
+{
+  /* if the hostname != NULL, use hostname, else, use ip */
+  INK_MD5 md5;
+  INK_DIGEST_CTX ctx;
+  ink_code_incr_md5_init(&ctx);
+  if (hostname && len > 0)
+    ink_code_incr_md5_update(&ctx, hostname, len);
+  else
+    ink_code_incr_md5_update(&ctx, reinterpret_cast<char const*>(ats_ip_addr8_cast(ip)), ats_ip_addr_size(ip));
+  if (port != 0) {
+    unsigned short p = port;
+    p = htons(p);
+    ink_code_incr_md5_update(&ctx, (char *) &p, 2);
+  }
+  if (prefix != NULL) {
+    ink_code_incr_md5_update(&ctx, prefix, prelen);
+  }
+  ink_code_incr_md5_final((char *) &md5, &ctx);
+
+  return md5.fold();
+}
+
+//----------------------------------------------------------
+// FailHistory Implementation
+//----------------------------------------------------------
+void
+FailHistory::init(int window)
+{
+  bin_len = (window + CONG_HIST_ENTRIES) / CONG_HIST_ENTRIES;
+  if (bin_len <= 0)
+    bin_len = 1;
+  length = bin_len * CONG_HIST_ENTRIES;
+  for (int i = 0; i < CONG_HIST_ENTRIES; i++) {
+    bins[i] = 0;
+  }
+  last_event = 0;
+  cur_index = 0;
+  events = 0;
+  start = 0;
+}
+
+void
+FailHistory::init_event(long t, int n)
+{
+  last_event = t;
+  cur_index = 0;
+  events = n;
+  bins[0] = n;
+  for (int i = 1; i < CONG_HIST_ENTRIES; i++) {
+    bins[i] = 0;
+  }
+  start = (last_event + bin_len) - last_event % bin_len - length;
+}
+
+int
+FailHistory::regist_event(long t, int n)
+{
+  if (t < start)
+    return events;
+  if (t > last_event + length) {
+    init_event(t, n);
+    return events;
+  }
+  if (t < start + length) {
+    bins[((t - start) / bin_len + 1 + cur_index) % CONG_HIST_ENTRIES] += n;
+  } else {
+    do {
+      start += bin_len;
+      cur_index++;
+      if (cur_index == CONG_HIST_ENTRIES)
+        cur_index = 0;
+      events -= bins[cur_index];
+      bins[cur_index] = 0;
+    } while (start + length < t);
+    bins[cur_index] = n;
+  }
+  events += n;
+  if (last_event < t)
+    last_event = t;
+  return events;
+}
+
+//----------------------------------------------------------
+// CongestionEntry Implementation
+//----------------------------------------------------------
+CongestionEntry::CongestionEntry(const char *hostname, sockaddr const* ip, CongestionControlRecord * rule, uint64_t key)
+:m_key(key),
+m_last_congested(0),
+m_congested(0),
+m_stat_congested_conn_failures(0),
+m_M_congested(0), m_last_M_congested(0), m_num_connections(0), m_stat_congested_max_conn(0), m_ref_count(1)
+{
+  memset(&m_ip, 0, sizeof(m_ip));
+  if (ip != NULL) {
+    ats_ip_copy(&m_ip.sa, ip);
+  }
+  m_hostname = ats_strdup(hostname);
+  rule->get();
+  pRecord = rule;
+  clearFailHistory();
+  m_hist_lock = new_ProxyMutex();
+}
+
+void
+CongestionEntry::init(CongestionControlRecord * rule)
+{
+  if (pRecord)
+    pRecord->put();
+  rule->get();
+  pRecord = rule;
+  clearFailHistory();
+
+  // TODO: This used to signal via SNMP
+  if ((pRecord->max_connection > m_num_connections)
+      && ink_atomic_swap(&m_M_congested, 0)) {
+    // action not congested?
+  }
+}
+
+bool
+CongestionEntry::validate()
+{
+  CongestionControlRecord *p = CongestionControlled(this);
+  if (p == NULL) {
+    return false;
+  }
+
+  uint64_t key = make_key(m_hostname,
+                        &m_ip.sa,
+                        p);
+  if (key != m_key) {
+    return false;
+  }
+  applyNewRule(p);
+  return true;
+}
+
+void
+CongestionEntry::applyNewRule(CongestionControlRecord * rule)
+{
+  if (pRecord->fail_window != rule->fail_window) {
+    init(rule);
+    return;
+  }
+  int mcf = pRecord->max_connection_failures;
+  pRecord->put();
+  rule->get();
+  pRecord = rule;
+  // TODO: This used to signal via SNMP
+  if (((pRecord->max_connection < 0)
+       || (pRecord->max_connection > m_num_connections))
+      && ink_atomic_swap(&m_M_congested, 0)) {
+    // action not congested ?
+  }
+  // TODO: This used to signal via SNMP
+  if (pRecord->max_connection_failures < 0) {
+    if (ink_atomic_swap(&m_congested, 0)) {
+      // action not congested ?
+    }
+    return;
+  }
+  // TODO: This used to signal via SNMP
+  if (mcf < pRecord->max_connection_failures) {
+    if (ink_atomic_swap(&m_congested, 0)) {
+      // action not congested?
+    }
+  } else if (mcf > pRecord->max_connection_failures && m_history.events >= pRecord->max_connection_failures) {
+    if (!ink_atomic_swap(&m_congested, 1)) {
+      // action congested?
+    }
+  }
+}
+
+int
+CongestionEntry::sprint(char *buf, int buflen, int format)
+{
+  char str_time[100] = " ";
+  char addrbuf[INET6_ADDRSTRLEN];
+  int len = 0;
+  ink_hrtime timestamp = 0;
+  char state;
+  if (pRecord->max_connection >= 0 && m_num_connections >= pRecord->max_connection) {
+    timestamp = ink_hrtime_to_sec(ink_get_hrtime());
+    state = 'M';
+  } else {
+    timestamp = m_last_congested;
+    state = (m_congested ? 'F' : ' ');
+  }
+  len += snprintf(buf + len, buflen - len, "%" PRId64 "|%d|%s|%s",
+                      timestamp,
+                      pRecord->line_num,
+                      (m_hostname ? m_hostname : " "), (ats_is_ip(&m_ip) ? ats_ip_ntop(&m_ip.sa, addrbuf, sizeof(addrbuf)) : " "));
+
+  len += snprintf(buf + len, buflen - len, "|%s|%s|%c",
+                      (pRecord->congestion_scheme == PER_IP ? "per_ip" : "per_host"),
+                      (pRecord->prefix ? pRecord->prefix : " "), state);
+
+  len += snprintf(buf + len, buflen - len, "|%d|%d", m_stat_congested_conn_failures, m_stat_congested_max_conn);
+
+  if (format > 0) {
+    if (m_congested) {
+      struct tm time;
+      time_t seconds = m_last_congested;
+      if (congestionControlLocalTime) {
+        ink_localtime_r(&seconds, &time);
+      } else {
+        gmtime_r(&seconds, &time);
+      }
+      snprintf(str_time, sizeof(str_time), "%04d/%02d/%02d %02d:%02d:%02d",
+                   time.tm_year + 1900, time.tm_mon + 1, time.tm_mday, time.tm_hour, time.tm_min, time.tm_sec);
+    }
+    len += snprintf(buf + len, buflen - len, "|%s", str_time);
+
+    if (format > 1) {
+      len += snprintf(buf + len, buflen - len, "|%" PRIu64 "", m_key);
+
+      if (format > 2) {
+        len += snprintf(buf + len, buflen - len, "|%ld", m_history.last_event);
+
+        if (format > 3) {
+          len += snprintf(buf + len, buflen - len, "|%d|%d|%d", m_history.events, m_ref_count, m_num_connections);
+        }
+      }
+    }
+  }
+  len += snprintf(buf + len, buflen - len, "\n");
+  return len;
+}
+
+//-------------------------------------------------------------
+// When a connection failure happened, try to get the lock
+//  first and change register the event, if we can not get
+//  the lock, discard the event
+//-------------------------------------------------------------
+void
+CongestionEntry::failed_at(ink_hrtime t)
+{
+  if (pRecord->max_connection_failures == -1)
+    return;
+  // long time = ink_hrtime_to_sec(t);
+  long time = t;
+  Debug("congestion_control", "failed_at: %ld", time);
+  MUTEX_TRY_LOCK(lock, m_hist_lock, this_ethread());
+  if (lock) {
+    m_history.regist_event(time);
+    if (!m_congested) {
+      int32_t new_congested = compCongested();
+      // TODO: This used to signal via SNMP
+      if (new_congested && !ink_atomic_swap(&m_congested, 1)) {
+        m_last_congested = m_history.last_event;
+        // action congested ?
+      }
+    }
+  } else {
+    Debug("congestion_control", "failure info lost due to lock contention(Entry: %p, Time: %ld)", (void *) this, time);
+  }
+}
+
+void
+CongestionEntry::go_alive()
+{
+  // TODO: This used to signal via SNMP
+  if (ink_atomic_swap(&m_congested, 0)) {
+    // Action not congested ?
+  }
+}
+
+#define SERVER_CONGESTED_SIG  REC_SIGNAL_HTTP_CONGESTED_SERVER
+#define SERVER_ALLEVIATED_SIG REC_SIGNAL_HTTP_ALLEVIATED_SERVER
+#define CC_SignalWarning(sig, msg) \
+     REC_SignalWarning(sig, msg)
diff --git a/proxy/congest/Congestion.h b/proxy/congest/Congestion.h
new file mode 100644
index 00000000..e3de2b9e
--- /dev/null
+++ b/proxy/congest/Congestion.h
@@ -0,0 +1,470 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  Congestion.h - Implementation of Congestion Control
+ *
+ *
+ ****************************************************************************/
+
+#ifndef CONGESTION_H_
+#define CONGESTION_H_
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "ControlBase.h"
+#include "ControlMatcher.h"
+#include "CongestionStats.h"
+
+#define CONGESTION_EVENT_CONGESTED_ON_M      (CONGESTION_EVENT_EVENTS_START + 1)
+#define CONGESTION_EVENT_CONGESTED_ON_F      (CONGESTION_EVENT_EVENTS_START + 2)
+#define CONGESTION_EVENT_CONGESTED_LIST_DONE (CONGESTION_EVENT_EVENTS_START + 3)
+#define CONGESTION_EVENT_CONTROL_LOOKUP_DONE (CONGESTION_EVENT_EVENTS_START + 4)
+
+struct RequestData;
+
+extern InkRand CongestionRand;
+
+enum
+{ PER_IP, PER_HOST };
+
+class CongestionControlRecord;
+
+struct CongestionControlRule
+{
+  CongestionControlRule();
+  ~CongestionControlRule();
+  CongestionControlRecord *record;
+};
+
+class CongestionControlRecord:public ControlBase
+{
+public:
+  CongestionControlRecord();
+  CongestionControlRecord(const CongestionControlRecord & rec);
+   ~CongestionControlRecord();
+  char *Init(matcher_line * line_info);
+  void UpdateMatch(CongestionControlRule * pRule, RequestData * rdata);
+  void Print();
+
+  void cleanup();
+  void setdefault();
+  char *validate();
+
+  int rank;                     // matching preference
+/*
+ * Select the first matching rule specified in congestion.config
+ * rank     Matches
+ *   3       dest && prefix && port
+ *   2       dest && port
+ *   1       dest && prefix
+ *   0       dest
+ */
+
+  char *prefix;
+  int prefix_len;
+  unsigned short port;
+  int congestion_scheme;
+  char *error_page;
+
+  int max_connection_failures;
+  int fail_window;
+  int proxy_retry_interval;
+  int client_wait_interval;
+  int wait_interval_alpha;
+  int live_os_conn_timeout;
+  int live_os_conn_retries;
+  int dead_os_conn_timeout;
+  int dead_os_conn_retries;
+  int max_connection;
+
+  CongestionControlRecord *pRecord;
+  int32_t ref_count;
+
+  void get()
+  {
+    ink_atomic_increment(&ref_count, 1);
+  }
+  void put()
+  {
+    if (ink_atomic_increment(&ref_count, -1) == 1)
+      delete this;
+  }
+};
+
+inline
+CongestionControlRule::CongestionControlRule()
+  :
+record(NULL)
+{
+}
+
+inline
+CongestionControlRule::~
+CongestionControlRule()
+{
+  record = NULL;
+}
+
+inline
+CongestionControlRecord::CongestionControlRecord()
+  :
+rank(0),
+prefix(NULL),
+prefix_len(0),
+port(0),
+congestion_scheme(PER_IP),
+error_page(NULL),
+max_connection_failures(5),
+fail_window(120),
+proxy_retry_interval(10),
+client_wait_interval(300),
+wait_interval_alpha(30),
+live_os_conn_timeout(60),
+live_os_conn_retries(2),
+dead_os_conn_timeout(15),
+dead_os_conn_retries(1),
+max_connection(-1),
+pRecord(NULL),
+ref_count(0)
+{
+}
+
+inline
+CongestionControlRecord::~
+CongestionControlRecord()
+{
+  cleanup();
+}
+inline void
+CongestionControlRecord::cleanup()
+{
+  if (pRecord) {
+    pRecord->put();
+    pRecord = NULL;
+  }
+  ats_free(prefix), prefix = NULL;
+  ats_free(error_page), error_page = NULL;
+}
+
+typedef unsigned short cong_hist_t;
+#define CONG_HIST_ENTRIES 17
+
+// CongestionEntry
+struct FailHistory
+{
+  long start;
+  int bin_len;
+  int length;
+  cong_hist_t bins[CONG_HIST_ENTRIES];
+  int cur_index;
+  long last_event;
+  int events;
+
+    FailHistory():start(0), bin_len(0), length(0), cur_index(0), last_event(0), events(0)
+  {
+    bzero((void *) &bins, sizeof(bins));
+  }
+  void init(int window);
+  void init_event(long t, int n = 1);
+  int regist_event(long t, int n = 1);
+  int get_bin_events(int index)
+  {
+    return bins[(index + 1 + cur_index) % CONG_HIST_ENTRIES];
+  }
+};
+
+
+struct CongestionEntry: public RequestData
+{
+  // key in the hash table;
+  uint64_t m_key;
+  // host info
+  IpEndpoint m_ip;
+  char *m_hostname;
+
+  // Pointer to the congestion.config entry
+  // Remember to update the refcount of pRecord
+  CongestionControlRecord *pRecord;
+
+  // State -- connection failures
+  FailHistory m_history;
+  Ptr<ProxyMutex> m_hist_lock;
+  ink_hrtime m_last_congested;
+  volatile int m_congested;     //0 | 1
+  int m_stat_congested_conn_failures;
+
+  volatile int m_M_congested;
+  ink_hrtime m_last_M_congested;
+
+// State -- concorrent connections
+  int m_num_connections;
+  int m_stat_congested_max_conn;
+
+  // Reference count
+  int m_ref_count;
+
+    CongestionEntry(const char *hostname, sockaddr const* ip, CongestionControlRecord * rule, uint64_t key);
+    CongestionEntry();
+    virtual ~ CongestionEntry();
+
+  /* RequestData virtural functions */
+  virtual char *get_string()
+  {
+    return pRecord->prefix;
+  }
+  virtual const char *get_host()
+  {
+    return m_hostname;
+  }
+  virtual sockaddr const* get_ip()
+  {
+    return &m_ip.sa;
+  }
+  virtual const sockaddr* get_client_ip()
+  {
+    return NULL;
+  }
+  virtual RD_Type data_type(void)
+  {
+    return RD_CONGEST_ENTRY;
+  }
+
+  /* print the entry into the congested list output buffer */
+  int sprint(char *buf, int buflen, int format = 0);
+
+  /* reference counter manipulation */
+  void get();
+  void put();
+
+  /* congestion control functions */
+  // Is the server congested?
+  bool F_congested();
+  bool M_congested(ink_hrtime t);
+  bool congested();
+
+  // Update state info
+  void go_alive();
+  void failed_at(ink_hrtime t);
+  void connection_opened();
+  void connection_closed();
+
+  // Connection controls
+  bool proxy_retry(ink_hrtime t);
+  int client_retry_after();
+  int connect_retries();
+  int connect_timeout();
+  char *getErrorPage()
+  {
+    return pRecord->error_page;
+  }
+
+  // stats
+  void stat_inc_F();
+  void stat_inc_M();
+
+  // fail history operations
+  void clearFailHistory();
+  bool compCongested();
+
+  // CongestionEntry and CongestionControl rules interaction helper functions
+  bool usefulInfo(ink_hrtime t);
+  bool validate();
+  void applyNewRule(CongestionControlRecord * rule);
+  void init(CongestionControlRecord * rule);
+
+};
+
+inline bool CongestionEntry::usefulInfo(ink_hrtime t)
+{
+  return (m_ref_count > 1 ||
+          m_congested != 0 ||
+          m_num_connections > 0 || (m_history.last_event + pRecord->fail_window > t && m_history.events > 0));
+}
+
+inline int
+CongestionEntry::client_retry_after()
+{
+  int prat = 0;
+  if (F_congested()) {
+    prat = pRecord->proxy_retry_interval + m_history.last_event - ink_hrtime_to_sec(ink_get_hrtime());
+    if (prat < 0)
+      prat = 0;
+  }
+  return (prat + pRecord->client_wait_interval + CongestionRand.random() % pRecord->wait_interval_alpha);
+}
+
+inline bool CongestionEntry::proxy_retry(ink_hrtime t)
+{
+  return ((ink_hrtime_to_sec(t) - m_history.last_event) >= pRecord->proxy_retry_interval);
+}
+
+inline bool CongestionEntry::F_congested()
+{
+  return m_congested == 1;
+}
+
+inline bool CongestionEntry::M_congested(ink_hrtime t)
+{
+  if (pRecord->max_connection >= 0 && m_num_connections >= pRecord->max_connection) {
+    if (ink_atomic_swap(&m_M_congested, 1) == 0) {
+      m_last_M_congested = t;
+      // TODO: Used to signal congestions
+    }
+    return true;
+  }
+  return false;
+}
+
+inline bool CongestionEntry::congested()
+{
+  return (F_congested() || m_M_congested == 1);
+}
+
+inline int
+CongestionEntry::connect_retries()
+{
+  if (F_congested()) {
+    return pRecord->dead_os_conn_retries;
+  } else {
+    return pRecord->live_os_conn_retries;
+  }
+}
+
+inline int
+CongestionEntry::connect_timeout()
+{
+  if (F_congested()) {
+    return pRecord->dead_os_conn_timeout;
+  } else {
+    return pRecord->live_os_conn_timeout;
+  }
+}
+
+
+inline void
+CongestionEntry::stat_inc_F()
+{
+  ink_atomic_increment(&m_stat_congested_conn_failures, 1);
+}
+
+inline void
+CongestionEntry::stat_inc_M()
+{
+  ink_atomic_increment(&m_stat_congested_max_conn, 1);
+}
+
+inline bool CongestionEntry::compCongested()
+{
+  if (m_congested)
+    return true;
+  if (pRecord->max_connection_failures == -1)
+    return false;
+  return pRecord->max_connection_failures <= m_history.events;
+}
+
+// return true when max_conn state changed
+inline void
+CongestionEntry::connection_opened()
+{
+  ink_atomic_increment(&m_num_connections, 1);
+}
+
+// return true when max_conn state changed
+inline void
+CongestionEntry::connection_closed()
+{
+  ink_atomic_increment(&m_num_connections, -1);
+  if (ink_atomic_swap(&m_M_congested, 0) == 1) {
+    // TODO: Used to signal not congested
+  }
+}
+
+inline void
+CongestionEntry::clearFailHistory()
+{
+  m_history.init(pRecord->fail_window);
+  m_congested = 0;
+}
+
+inline CongestionEntry::CongestionEntry()
+:m_key(0), m_hostname(NULL), pRecord(NULL),
+m_last_congested(0), m_congested(0),
+m_stat_congested_conn_failures(0),
+m_M_congested(0), m_last_M_congested(0), m_num_connections(0), m_stat_congested_max_conn(0), m_ref_count(1)
+{
+  memset(&m_ip, 0, sizeof(m_ip));
+  m_hist_lock = new_ProxyMutex();
+}
+
+
+inline CongestionEntry::~CongestionEntry()
+{
+  if (m_hostname)
+    ats_free(m_hostname), m_hostname = NULL;
+  m_hist_lock = NULL;
+  if (pRecord)
+    pRecord->put(), pRecord = NULL;
+}
+
+inline void
+CongestionEntry::get()
+{
+  ink_atomic_increment(&m_ref_count, 1);
+}
+
+inline void
+CongestionEntry::put()
+{
+  if (ink_atomic_increment(&m_ref_count, -1) == 1) {
+    delete this;
+  }
+}
+
+// API to outside world
+
+extern int congestionControlEnabled;
+extern int congestionControlLocalTime;
+
+void initCongestionControl();
+CongestionControlRecord *CongestionControlled(RequestData * rdata);
+
+uint64_t make_key(char *hostname, int len, sockaddr const* ip, CongestionControlRecord * record);
+uint64_t make_key(char *hostname, sockaddr const* ip, CongestionControlRecord * record);
+uint64_t make_key(char *hostname, int len, sockaddr const* ip, char *prefix, int prelen, short port = 0);
+
+//----------------------------------------------------
+// the following functions are actually declared in
+// CongestionDB.h and defined in CongestionDB.cc
+// They are included here only to make the
+// editing & compiling process faster
+//----------------------------------------------------
+extern Action *get_congest_entry(Continuation * cont, HttpRequestData * data, CongestionEntry ** ppEntry);
+extern Action *get_congest_list(Continuation * cont, MIOBuffer * buffer, int format);
+
+extern void remove_congested_entry(uint64_t key);
+extern void remove_all_congested_entry(void);
+extern void remove_congested_entry(char *buf, MIOBuffer * out_buffer);
+
+#endif /* CONGESTTION_H_ */
diff --git a/proxy/congest/CongestionDB.cc b/proxy/congest/CongestionDB.cc
new file mode 100644
index 00000000..f7d505e8
--- /dev/null
+++ b/proxy/congest/CongestionDB.cc
@@ -0,0 +1,638 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CongestionDB.cc - Implementation of congestion control datastore
+ *
+ *
+ ****************************************************************************/
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "P_Net.h"
+#include "Main.h"
+#include "CongestionDB.h"
+#include "Congestion.h"
+#include "ProcessManager.h"
+
+#define SCHEDULE_CONGEST_CONT_INTERVAL HRTIME_MSECONDS(5)
+int CONGESTION_DB_SIZE = 1024;
+
+CongestionDB *theCongestionDB = NULL;
+
+
+/*
+ * the CongestionDBCont is the continuation to do the congestion db related work
+ * when the CongestionDB's corresponding function does not get the lock in the
+ * first try
+ */
+
+class CongestionDBCont:public Continuation
+{
+public:
+  CongestionDBCont();
+  int GC(int event, Event * e);
+
+  int get_congest_list(int event, Event * e);
+
+  int get_congest_entry(int event, Event * e);
+
+
+  Action m_action;
+
+  // To save momery, use a union here
+  union
+  {
+    struct
+    {
+      MIOBuffer *m_iobuf;
+      int m_CurPartitionID;
+      int m_list_format;        // format of list
+    } list_info;
+    struct
+    {
+      uint64_t m_key;
+      char *m_hostname;
+      IpEndpoint m_ip;
+      CongestionControlRecord *m_rule;
+      CongestionEntry **m_ppEntry;
+    } entry_info;
+  } data;
+};
+
+// MACRO's to save typing
+#define CDBC_buf  data.list_info.m_iobuf
+#define CDBC_pid  data.list_info.m_CurPartitionID
+#define CDBC_lf   data.list_info.m_list_format
+#define CDBC_key  data.entry_info.m_key
+#define CDBC_host data.entry_info.m_hostname
+#define CDBC_ip   data.entry_info.m_ip
+#define CDBC_rule data.entry_info.m_rule
+#define CDBC_ppE  data.entry_info.m_ppEntry
+
+inline CongestionDBCont::CongestionDBCont()
+:Continuation(NULL)
+{
+  memset(&data, 0, sizeof(data));
+}
+
+//--------------------------------------------------------------
+// class allocators
+static
+  ClassAllocator <
+  CongestionDBCont >
+CongestionDBContAllocator("CongestionDBContAllocator");
+
+inline void
+Free_CongestionDBCont(CongestionDBCont * cont)
+{
+  cont->m_action = NULL;
+  cont->mutex = NULL;
+  CongestionDBContAllocator.free(cont);
+}
+
+ClassAllocator<CongestRequestParam> CongestRequestParamAllocator("CongestRequestParamAllocator");
+
+inline void
+Free_CongestRequestParam(CongestRequestParam * param)
+{
+  CongestRequestParamAllocator.free(param);
+}
+
+//-----------------------------------------------------------------
+//  CongestionDB implementation
+//-----------------------------------------------------------------
+/*
+ * CongestionDB(int tablesize)
+ *  tablesize is the initial hashtable bucket number
+ */
+static long
+  congestEntryGCTime = 0;
+
+// Before the garbage collection of the congestion db, set the
+//  current GC time, CongestionEntry::usefulInfo(t) will use the
+//  timestamp to determine if the entry contains useful infomation
+
+void
+preCongestEntryGC(void)
+{
+  congestEntryGCTime = (long) ink_hrtime_to_sec(ink_get_hrtime());
+}
+
+// if the entry contains useful info, return false -- keep it
+// else return true -- delete it
+bool
+congestEntryGC(CongestionEntry * p)
+{
+  if (!p->usefulInfo(congestEntryGCTime)) {
+    p->put();
+    return true;
+  }
+  return false;
+}
+
+CongestionDB::CongestionDB(int tablesize)
+:CongestionTable(tablesize, &congestEntryGC, &preCongestEntryGC)
+{
+  ink_assert(tablesize > 0);
+  todo_lists = new InkAtomicList[MT_HASHTABLE_PARTITIONS];
+  for (int i = 0; i < MT_HASHTABLE_PARTITIONS; i++) {
+    ink_atomiclist_init(&todo_lists[i], "cong_todo_list", (uintptr_t) &((CongestRequestParam *) 0)->link);
+  }
+}
+
+/*
+ * There should be no entry in the DB, before you call the destructor
+ */
+
+CongestionDB::~CongestionDB()
+{
+  delete[]todo_lists;
+}
+
+void
+CongestionDB::addRecord(uint64_t key, CongestionEntry * pEntry)
+{
+  ink_assert(key == pEntry->m_key);
+  pEntry->get();
+  ProxyMutex *bucket_mutex = lock_for_key(key);
+  MUTEX_TRY_LOCK(lock, bucket_mutex, this_ethread());
+  if (lock) {
+    RunTodoList(part_num(key));
+    CongestionEntry *tmp = insert_entry(key, pEntry);
+    if (tmp)
+      tmp->put();
+  } else {
+    CongestRequestParam *param = CongestRequestParamAllocator.alloc();
+    param->m_op = CongestRequestParam::ADD_RECORD;
+    param->m_key = key;
+    param->m_pEntry = pEntry;
+    ink_atomiclist_push(&todo_lists[part_num(key)], param);
+  }
+}
+
+void
+CongestionDB::removeAllRecords()
+{
+  CongestionEntry *tmp;
+  Iter it;
+  for (int part = 0; part < MT_HASHTABLE_PARTITIONS; part++) {
+    ProxyMutex *bucket_mutex = lock_for_key(part);
+    MUTEX_TRY_LOCK(lock, bucket_mutex, this_ethread());
+    if (lock) {
+      RunTodoList(part);
+      tmp = first_entry(part, &it);
+      while (tmp) {
+        remove_entry(part, &it);
+        tmp->put();
+        tmp = cur_entry(part, &it);
+      }
+    } else {
+      CongestRequestParam *param = CongestRequestParamAllocator.alloc();
+      param->m_op = CongestRequestParam::REMOVE_ALL_RECORDS;
+      param->m_key = part;
+      ink_atomiclist_push(&todo_lists[part], param);
+    }
+  }
+}
+
+void
+CongestionDB::removeRecord(uint64_t key)
+{
+  CongestionEntry *tmp;
+  ProxyMutex *bucket_mutex = lock_for_key(key);
+  MUTEX_TRY_LOCK(lock, bucket_mutex, this_ethread());
+  if (lock) {
+    RunTodoList(part_num(key));
+    tmp = remove_entry(key);
+    if (tmp)
+      tmp->put();
+  } else {
+    CongestRequestParam *param = CongestRequestParamAllocator.alloc();
+    param->m_op = CongestRequestParam::REMOVE_RECORD;
+    param->m_key = key;
+    ink_atomiclist_push(&todo_lists[part_num(key)], param);
+  }
+}
+
+// process one item in the to do list
+void
+CongestionDB::process(int buckId, CongestRequestParam * param)
+{
+  CongestionEntry *pEntry = NULL;
+  switch (param->m_op) {
+  case CongestRequestParam::ADD_RECORD:
+    pEntry = insert_entry(param->m_key, param->m_pEntry);
+    if (pEntry) {
+      pEntry->put();
+    }
+    break;
+  case CongestRequestParam::REMOVE_ALL_RECORDS:
+    {
+      CongestionEntry *tmp;
+      Iter it;
+      tmp = first_entry(param->m_key, &it);
+      while (tmp) {
+        remove_entry(param->m_key, &it);
+        tmp->put();
+        tmp = cur_entry(param->m_key, &it);
+      }
+      break;
+    }
+  case CongestRequestParam::REMOVE_RECORD:
+    pEntry = remove_entry(param->m_key);
+    if (pEntry)
+      pEntry->put();
+    break;
+  case CongestRequestParam::REVALIDATE_BUCKET:
+    revalidateBucket(buckId);
+    break;
+  default:
+    ink_assert(!"CongestionDB::process unrecognized op");
+  }
+}
+
+void
+CongestionDB::RunTodoList(int buckId)
+{
+  CongestRequestParam *param = NULL, *cur = NULL;
+  if ((param = (CongestRequestParam *)
+       ink_atomiclist_popall(&todo_lists[buckId])) != NULL) {
+    /* start the work at the end of the list */
+    param->link.prev = NULL;
+    while (param->link.next) {
+      param->link.next->link.prev = param;
+      param = param->link.next;
+    };
+    while (param) {
+      process(buckId, param);
+      cur = param;
+      param = param->link.prev;
+      Free_CongestRequestParam(cur);
+    }
+  }
+}
+
+void
+CongestionDB::revalidateBucket(int buckId)
+{
+  Iter it;
+  CongestionEntry *cur = NULL;
+  cur = first_entry(buckId, &it);
+  while (cur != NULL) {
+    if (!cur->validate()) {
+      remove_entry(buckId, &it);
+      cur->put();
+      // the next entry has been moved to the current pos
+      //because of the remove_entry
+      cur = cur_entry(buckId, &it);
+    } else
+      cur = next_entry(buckId, &it);
+  }
+}
+
+//-----------------------------------------------------------------
+//  CongestionDBCont implementation
+//-----------------------------------------------------------------
+
+int
+CongestionDBCont::GC(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (congestionControlEnabled == 1 || congestionControlEnabled == 2) {
+    if (theCongestionDB == NULL)
+      goto Ldone;
+    for (; CDBC_pid < theCongestionDB->getSize(); CDBC_pid++) {
+      ProxyMutex *bucket_mutex = theCongestionDB->lock_for_key(CDBC_pid);
+      {
+        MUTEX_TRY_LOCK(lock, bucket_mutex, this_ethread());
+        if (lock) {
+          ink_hrtime now = ink_get_hrtime();
+          now = ink_hrtime_to_sec(now);
+          theCongestionDB->RunTodoList(CDBC_pid);
+          Iter it;
+          CongestionEntry *pEntry = theCongestionDB->first_entry(CDBC_pid, &it);
+          while (pEntry) {
+            if (!pEntry->usefulInfo(now)) {
+              theCongestionDB->remove_entry(CDBC_pid, &it);
+              pEntry->put();
+              pEntry = theCongestionDB->cur_entry(CDBC_pid, &it);
+            }
+          }
+        } else {
+          Debug("congestion_db", "flush gc missed the lock [%d], retry", CDBC_pid);
+          return EVENT_CONT;
+        }
+      }
+    }
+  }
+Ldone:
+  CDBC_pid = 0;
+  return EVENT_DONE;
+}
+
+int
+CongestionDBCont::get_congest_list(int /* event ATS_UNUSED */, Event * e)
+{
+  if (m_action.cancelled) {
+    Free_CongestionDBCont(this);
+    return EVENT_DONE;
+  }
+  for (; CDBC_pid < theCongestionDB->getSize(); CDBC_pid++) {
+    ProxyMutex *bucket_mutex = theCongestionDB->lock_for_key(CDBC_pid);
+    {
+      MUTEX_TRY_LOCK(lock_bucket, bucket_mutex, this_ethread());
+      if (!lock_bucket) {
+        e->schedule_in(SCHEDULE_CONGEST_CONT_INTERVAL);
+        return EVENT_CONT;
+      } else {
+        theCongestionDB->RunTodoList(CDBC_pid);
+        char buf[1024];
+        Iter it;
+        int len;
+        CongestionEntry *pEntry = theCongestionDB->first_entry(CDBC_pid, &it);
+        while (pEntry) {
+          if ((pEntry->congested() && pEntry->pRecord->max_connection != 0) || CDBC_lf > 10) {
+            len = pEntry->sprint(buf, 1024, CDBC_lf);
+            CDBC_buf->write(buf, len);
+          }
+          pEntry = theCongestionDB->next_entry(CDBC_pid, &it);
+        }
+      }
+    }
+  }
+
+  /* handle event done */
+  m_action.continuation->handleEvent(CONGESTION_EVENT_CONGESTED_LIST_DONE, NULL);
+  Free_CongestionDBCont(this);
+  return EVENT_DONE;
+}
+
+int
+CongestionDBCont::get_congest_entry(int /* event ATS_UNUSED */, Event * e)
+{
+  Debug("congestion_control", "cont::get_congest_entry started");
+
+  if (m_action.cancelled) {
+    Debug("congestion_cont", "action cancelled for %p", this);
+    Free_CongestionDBCont(this);
+    Debug("congestion_control", "cont::get_congest_entry state machine canceled");
+    return EVENT_DONE;
+  }
+  ProxyMutex *bucket_mutex = theCongestionDB->lock_for_key(CDBC_key);
+  MUTEX_TRY_LOCK(lock_bucket, bucket_mutex, this_ethread());
+  if (lock_bucket) {
+    theCongestionDB->RunTodoList(theCongestionDB->part_num(CDBC_key));
+    *CDBC_ppE = theCongestionDB->lookup_entry(CDBC_key);
+    if (*CDBC_ppE != NULL) {
+      CDBC_rule->put();
+      (*CDBC_ppE)->get();
+      Debug("congestion_control", "cont::get_congest_entry entry found");
+      m_action.continuation->handleEvent(CONGESTION_EVENT_CONTROL_LOOKUP_DONE, NULL);
+    } else {
+      /* create a new entry and add it to the congestDB */
+      *CDBC_ppE = new CongestionEntry(CDBC_host, &CDBC_ip.sa, CDBC_rule, CDBC_key);
+      CDBC_rule->put();
+      (*CDBC_ppE)->get();
+      theCongestionDB->insert_entry(CDBC_key, *CDBC_ppE);
+      Debug("congestion_control", "cont::get_congest_entry new entry created");
+      m_action.continuation->handleEvent(CONGESTION_EVENT_CONTROL_LOOKUP_DONE, NULL);
+    }
+    Free_CongestionDBCont(this);
+    return EVENT_DONE;
+  } else {
+    Debug("congestion_control", "cont::get_congest_entry MUTEX_TRY_LOCK failed");
+    e->schedule_in(SCHEDULE_CONGEST_CONT_INTERVAL);
+    return EVENT_CONT;
+  }
+}
+
+//-----------------------------------------------------------------
+//  Global fuctions implementation
+//-----------------------------------------------------------------
+
+void
+initCongestionDB()
+{
+  if (theCongestionDB == NULL) {
+    theCongestionDB = new CongestionDB(CONGESTION_DB_SIZE / MT_HASHTABLE_PARTITIONS);
+  }
+}
+
+void
+revalidateCongestionDB()
+{
+  ProxyMutex *bucket_mutex;
+  if (theCongestionDB == NULL) {
+    theCongestionDB = new CongestionDB(CONGESTION_DB_SIZE / MT_HASHTABLE_PARTITIONS);
+    return;
+  }
+  Debug("congestion_config", "congestion control revalidating CongestionDB");
+  for (int i = 0; i < theCongestionDB->getSize(); i++) {
+    bucket_mutex = theCongestionDB->lock_for_key(i);
+    {
+      MUTEX_TRY_LOCK(lock_bucket, bucket_mutex, this_ethread());
+      if (lock_bucket) {
+        theCongestionDB->RunTodoList(i);
+        theCongestionDB->revalidateBucket(i);
+      } else {
+        CongestRequestParam *param = CongestRequestParamAllocator.alloc();
+        param->m_op = CongestRequestParam::REVALIDATE_BUCKET;
+        ink_atomiclist_push(&theCongestionDB->todo_lists[i], param);
+      }
+    }
+  }
+  Debug("congestion_config", "congestion control revalidating CongestionDB Done");
+}
+
+Action *
+get_congest_entry(Continuation * cont, HttpRequestData * data, CongestionEntry ** ppEntry)
+{
+  if (congestionControlEnabled != 1 && congestionControlEnabled != 2)
+    return ACTION_RESULT_DONE;
+  Debug("congestion_control", "congestion control get_congest_entry start");
+
+  CongestionControlRecord *p = CongestionControlled(data);
+  Debug("congestion_control", "Control Matcher matched rule_num %d", p == NULL ? -1 : p->line_num);
+  if (p == NULL)
+    return ACTION_RESULT_DONE;
+// if the fail_window <= 0 and the max_connection == -1, then no congestion control
+  if (p->max_connection_failures <= 0 && p->max_connection < 0) {
+    return ACTION_RESULT_DONE;
+  }
+  uint64_t key = make_key((char *) data->get_host(), data->get_ip(), p);
+  Debug("congestion_control", "Key = %" PRIu64 "", key);
+
+  ProxyMutex *bucket_mutex = theCongestionDB->lock_for_key(key);
+  MUTEX_TRY_LOCK(lock_bucket, bucket_mutex, this_ethread());
+  if (lock_bucket) {
+    theCongestionDB->RunTodoList(theCongestionDB->part_num(key));
+    *ppEntry = theCongestionDB->lookup_entry(key);
+    if (*ppEntry != NULL) {
+      (*ppEntry)->get();
+      Debug("congestion_control", "get_congest_entry, found entry %p done", (void *) *ppEntry);
+      return ACTION_RESULT_DONE;
+    } else {
+      // create a new entry and add it to the congestDB
+      *ppEntry = new CongestionEntry(data->get_host(), data->get_ip(), p, key);
+      (*ppEntry)->get();
+      theCongestionDB->insert_entry(key, *ppEntry);
+      Debug("congestion_control", "get_congest_entry, new entry %p done", (void *) *ppEntry);
+      return ACTION_RESULT_DONE;
+    }
+  } else {
+    Debug("congestion_control", "get_congest_entry, trylock failed, schedule cont");
+    CongestionDBCont *Ccont = CongestionDBContAllocator.alloc();
+    Ccont->m_action = cont;
+    Ccont->mutex = cont->mutex;
+    Ccont->CDBC_key = key;
+    Ccont->CDBC_host = (char *) data->get_host();
+    ats_ip_copy(&Ccont->CDBC_ip.sa, data->get_ip());
+    p->get();
+    Ccont->CDBC_rule = p;
+    Ccont->CDBC_ppE = ppEntry;
+
+    SET_CONTINUATION_HANDLER(Ccont, &CongestionDBCont::get_congest_entry);
+    eventProcessor.schedule_in(Ccont, SCHEDULE_CONGEST_CONT_INTERVAL, ET_NET);
+    return &Ccont->m_action;
+  }
+}
+
+Action *
+get_congest_list(Continuation * cont, MIOBuffer * buffer, int format)
+{
+  if (theCongestionDB == NULL || (congestionControlEnabled != 1 && congestionControlEnabled != 2))
+    return ACTION_RESULT_DONE;
+  for (int i = 0; i < theCongestionDB->getSize(); i++) {
+    ProxyMutex *bucket_mutex = theCongestionDB->lock_for_key(i);
+    {
+      MUTEX_TRY_LOCK(lock_bucket, bucket_mutex, this_ethread());
+      if (lock_bucket) {
+        theCongestionDB->RunTodoList(i);
+        char buf[1024];
+        Iter it;
+        int len;
+        CongestionEntry *pEntry = theCongestionDB->first_entry(i, &it);
+        while (pEntry) {
+          if ((pEntry->congested() && pEntry->pRecord->max_connection != 0) || format > 10) {
+            len = pEntry->sprint(buf, 1024, format);
+            buffer->write(buf, len);
+          }
+          pEntry = theCongestionDB->next_entry(i, &it);
+        }
+      } else {
+        /* we did not get the lock, schedule it */
+        CongestionDBCont *CCcont = CongestionDBContAllocator.alloc();
+        CCcont->CDBC_pid = i;
+        CCcont->CDBC_buf = buffer;
+        CCcont->m_action = cont;
+        CCcont->mutex = cont->mutex;
+        CCcont->CDBC_lf = format;
+        SET_CONTINUATION_HANDLER(CCcont, &CongestionDBCont::get_congest_list);
+        eventProcessor.schedule_in(CCcont, SCHEDULE_CONGEST_CONT_INTERVAL, ET_NET);
+        return &CCcont->m_action;
+      }
+    }
+  }
+  return ACTION_RESULT_DONE;
+}
+
+/*
+ * this function is to suport removing the congested state for a
+ * specific server when the administrator knows it is online again
+ */
+
+void
+remove_all_congested_entry()
+{
+  if (theCongestionDB != NULL) {
+    theCongestionDB->removeAllRecords();
+  }
+}
+
+void
+remove_congested_entry(uint64_t key)
+{
+  if (theCongestionDB != NULL) {
+    theCongestionDB->removeRecord(key);
+  }
+}
+
+//--------------------------------------------------------------
+//  remove_congested_entry(char* buf, MIOBuffer *out_buffer)
+//   INPUT: buf
+//         format: "all",
+//                 "host=<hostname>[/<prefix>]",
+//                 "ip=<ip addr>[/<prefix>]",
+//                 "key=<internal key>"
+//   OUTPUT: out_buffer
+//           message to the Raf
+//--------------------------------------------------------------
+void
+remove_congested_entry(char *buf, MIOBuffer * out_buffer)
+{
+  const int MSG_LEN = 512;
+  char msg[MSG_LEN + 1];
+  int len = 0;
+  uint64_t key;
+  if (strcasecmp(buf, "all") == 0) {
+    remove_all_congested_entry();
+    len = snprintf(msg, MSG_LEN, "all entries in congestion control table removed\n");
+    // coverity[secure_coding]
+  } else if (sscanf(buf, "key=%" PRIu64 "", &key) == 1) {
+    remove_congested_entry(key);
+    len = snprintf(msg, MSG_LEN, "key %" PRIu64 " removed\n", key);
+  } else if (strncasecmp(buf, "host=", 5) == 0) {
+    char *p = buf + 5;
+    char *prefix = strchr(p, '/');
+    int prelen = 0;
+    if (prefix) {
+      *prefix = '\0';
+      prefix++;
+      prelen = strlen(prefix);
+    }
+    key = make_key(p, strlen(p), 0, prefix, prelen);
+    remove_congested_entry(key);
+    len = snprintf(msg, MSG_LEN, "host=%s prefix=%s removed\n", p, prefix ? prefix : "(nil)");
+  } else if (strncasecmp(buf, "ip=", 3) == 0) {
+    IpEndpoint ip;
+    memset(&ip, 0, sizeof(ip));
+    
+    char *p = buf + 3;
+    char *prefix = strchr(p, '/');
+    int prelen = 0;
+    if (prefix) {
+      *prefix = '\0';
+      prefix++;
+      prelen = strlen(prefix);
+    }
+    ats_ip_pton(p, &ip);
+    if (!ats_is_ip(&ip)) {
+      len = snprintf(msg, MSG_LEN, "invalid ip: %s\n", buf);
+    } else {
+      key = make_key(NULL, 0, &ip.sa, prefix, prelen);
+      remove_congested_entry(key);
+      len = snprintf(msg, MSG_LEN, "ip=%s prefix=%s removed\n", p, prefix ? prefix : "(nil)");
+    }
+  }
+  out_buffer->write(msg, len);
+}
diff --git a/proxy/congest/CongestionDB.h b/proxy/congest/CongestionDB.h
new file mode 100644
index 00000000..039dc4e9
--- /dev/null
+++ b/proxy/congest/CongestionDB.h
@@ -0,0 +1,115 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CongestionDB.h - Implementation of Congestion Control
+ *
+ *
+ ****************************************************************************/
+
+/*
+ * CongestionDB is implemented in a Multithread-Safe hash table
+ * the Data will be wrote to a disk file for recovery purpose.
+ */
+#ifndef CongestionDB_H_
+#define CongestionDB_H_
+
+#include "P_EventSystem.h"
+#include "MT_hashtable.h"
+#include "ControlMatcher.h"
+
+
+class CongestionControlRecord;
+struct CongestionEntry;
+
+typedef MTHashTable<uint64_t, CongestionEntry *>CongestionTable;
+typedef HashTableIteratorState<uint64_t, CongestionEntry *>Iter;
+
+/* API to the outside world */
+// check whether key was congested, store the found entry into pEntry
+Action *get_congest_entry(Continuation * cont, HttpRequestData * data, CongestionEntry ** ppEntry);
+Action *get_congest_list(Continuation * cont, MIOBuffer * buffer, int format = 0);
+void remove_all_congested_entry(void);
+void remove_congested_entry(uint64_t key);
+void remove_congested_entry(char *buf, MIOBuffer * out_buffer);
+void revalidateCongestionDB();
+void initCongestionDB();
+
+/*
+ * CongestRequestParam is the data structure passed to the request
+ * to update the congestion db with the appropriate info
+ * It is used when the TS missed a try_lock, the request info will be
+ * stored in the CongestRequestParam and insert in the to-do list of the
+ * approperiate DB partition.
+ * The first operation after the TS get the lock for a partition is
+ * to run the to do list
+ */
+
+struct CongestRequestParam
+{
+  enum Op_t
+  {
+    ADD_RECORD,
+    REMOVE_RECORD,
+    REMOVE_ALL_RECORDS,
+    REVALIDATE_BUCKET
+  };
+
+    CongestRequestParam():m_key(0), m_op(REVALIDATE_BUCKET), m_pEntry(NULL)
+  {
+  }
+
+   ~CongestRequestParam()
+  {
+  }
+
+  uint64_t m_key;
+  Op_t m_op;
+  CongestionEntry *m_pEntry;
+
+  LINK(CongestRequestParam, link);
+};
+
+/* struct declaration and definitions */
+class CongestionDB:public CongestionTable
+{
+public:
+  CongestionDB(int tablesize);
+   ~CongestionDB();
+  bool congested(uint64_t key);
+
+// add an entry to the db
+  void addRecord(uint64_t key, CongestionEntry * pEntry);
+// remove an entry from the db
+  void removeRecord(uint64_t key);
+  void removeAllRecords(void);
+  InkAtomicList *todo_lists;
+  void RunTodoList(int buckId);
+  void process(int buckId, CongestRequestParam * param);
+  void revalidateBucket(int buckId);
+};
+
+extern CongestionDB *theCongestionDB;
+
+#endif /* CongestionDB_H_ */
diff --git a/proxy/congest/CongestionStats.cc b/proxy/congest/CongestionStats.cc
new file mode 100644
index 00000000..ccb3961a
--- /dev/null
+++ b/proxy/congest/CongestionStats.cc
@@ -0,0 +1,52 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CongestionStats.cc - Implementation of Congestion Control
+ *
+ *
+ ****************************************************************************/
+
+#include "CongestionStats.h"
+
+void
+register_congest_stats()
+{
+#define CONGEST_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(congest_rsb, x, 0); \
+	RecSetRawStatCount(congest_rsb, x, 0); \
+} while (0);
+
+  congest_rsb = RecAllocateRawStatBlock((int) congest_num_stats);
+  RecRegisterRawStat(congest_rsb, RECT_PROCESS,
+                     "proxy.process.congestion.congested_on_conn_failures",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) congested_on_F_stat, RecRawStatSyncSum);
+  CONGEST_CLEAR_DYN_STAT(congested_on_F_stat);
+
+  RecRegisterRawStat(congest_rsb, RECT_PROCESS,
+                     "proxy.process.congestion.congested_on_max_connection",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) congested_on_M_stat, RecRawStatSyncSum);
+  CONGEST_CLEAR_DYN_STAT(congested_on_M_stat);
+}
diff --git a/proxy/congest/CongestionStats.h b/proxy/congest/CongestionStats.h
new file mode 100644
index 00000000..418ba4cb
--- /dev/null
+++ b/proxy/congest/CongestionStats.h
@@ -0,0 +1,51 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CongestionStats.h - Implementation of Congestion Control
+ *
+ *
+ ****************************************************************************/
+#ifndef CONGESTION_STATS_H_
+#define CONGESTION_STATS_H_
+
+
+// the stat variables are defined in StatSystem.h, StatSystem.cc
+void register_congest_stats();
+#include "P_RecProcess.h"
+extern RecRawStatBlock *congest_rsb;
+
+/* Instead of enumerating the stats in DynamicStats.h, each module needs
+   to enumerate its stats separately and register them with librecords
+   */
+enum
+{
+  congested_on_F_stat,
+  congested_on_M_stat,
+  congest_num_stats
+};
+#define CONGEST_SUM_GLOBAL_DYN_STAT(_x, _y) RecIncrGlobalRawStatSum(congest_rsb, (int) _x, _y)
+#define CONGEST_INCREMENT_DYN_STAT(_x) RecIncrRawStat(congest_rsb, mutex->thread_holding, (int)_x, 1)
+
+#endif /* CONGESTION_STATS_H_ */
diff --git a/proxy/congest/CongestionTest.cc b/proxy/congest/CongestionTest.cc
new file mode 100644
index 00000000..26b4bafa
--- /dev/null
+++ b/proxy/congest/CongestionTest.cc
@@ -0,0 +1,553 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*****************************************************************************
+ *
+ *  CongestionTest.cc - Regression Test of the congestion control module
+ *
+ *
+ ****************************************************************************/
+#include "libts.h"
+#include <math.h>
+#include "Main.h"
+#include "CongestionDB.h"
+#include "Congestion.h"
+#include "Error.h"
+
+//-------------------------------------------------------------
+// Test the HashTable implementation
+//-------------------------------------------------------------
+/* all of the elements inserted into the HashTable should be in the
+ * table and can be easily retrived
+ * also exercise the resizing of the table
+ */
+EXCLUSIVE_REGRESSION_TEST(Congestion_HashTable) (RegressionTest * t, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  MTHashTable<long, long>*htable = new MTHashTable<long, long>(4);
+  // add elements to the table;
+  long i, count = 1 * 1024 * 1024;
+  rprintf(t, "adding data into the hash table .", count);
+  for (i = 1; i <= count; i++) {
+    htable->insert_entry(i, i);
+    if (i % (count / 50) == 0)
+      fprintf(stderr, ".");
+  }
+  fprintf(stderr, "done\n");
+  rprintf(t, "%d data added into the hash table\n", count);
+  rprintf(t, "verifying the content");
+  for (i = 1; i <= count; i++) {
+    long data = htable->lookup_entry(i);
+    if (i % (count / 50) == 0)
+      fprintf(stderr, ".");
+    if (data != i) {
+      rprintf(t, "verify content failed: key(%d) data(%d)\n", i, data);
+      *pstatus = REGRESSION_TEST_FAILED;
+      return;
+    }
+  }
+  fprintf(stderr, "done\n");
+  long removed_count = 0;
+  // delete some data
+  rprintf(t, "removing data.");
+  for (i = 1; i < count / 2; i++) {
+    htable->remove_entry(i * 2);
+    if (i % (count / 50) == 0)
+      fprintf(stderr, ".");
+    removed_count++;
+  }
+  fprintf(stderr, "done\n");
+
+  rprintf(t, "%d data entries are removed\n", removed_count);
+  rprintf(t, "verify the content again");
+  for (i = 1; i <= count; i++) {
+    long data = htable->lookup_entry(i);
+    if (i % 2 == 1 && data == 0) {
+      rprintf(t, "verify content failed: key(%d) deleted\n", i);
+      *pstatus = REGRESSION_TEST_FAILED;
+      return;
+    }
+    if (data != 0 && data != i) {
+      rprintf(t, "verify content failed: key(%d) data(%d)\n", i, data);
+      *pstatus = REGRESSION_TEST_FAILED;
+      return;
+    }
+    if (i % (count / 50) == 0)
+      fprintf(stderr, ".");
+  }
+  fprintf(stderr, "done\n");
+
+  rprintf(t, "use iterator to list all the elements and delete half of them");
+  HashTableIteratorState<long, long>it;
+  int j, new_count = 0;
+  for (j = 0; j < MT_HASHTABLE_PARTITIONS; j++) {
+    int data = htable->first_entry(j, &it);
+    while (data > 0) {
+      new_count++;
+      if (new_count % (count / 25) == 0)
+        fprintf(stderr, ".");
+
+      if (new_count % 2 == 0) {
+        htable->remove_entry(j, &it);
+        data = htable->cur_entry(j, &it);
+        removed_count++;
+      } else
+        data = htable->next_entry(j, &it);
+    }
+  }
+  fprintf(stderr, "done\n");
+
+  rprintf(t, "verify the content once again");
+  new_count = count - removed_count;
+  for (j = 0; j < MT_HASHTABLE_PARTITIONS; j++) {
+    int data = htable->first_entry(j, &it);
+    while (data > 0) {
+      new_count--;
+      if (new_count % (count / 25) == 0)
+        fprintf(stderr, ".");
+      data = htable->next_entry(j, &it);
+      if (data != htable->lookup_entry(data)) {
+        rprintf(t, "verify content failed: key(%d) data(%d)\n", data, htable->lookup_entry(data));
+        *pstatus = REGRESSION_TEST_FAILED;
+        return;
+      }
+    }
+  }
+
+  fprintf(stderr, "done\n");
+  if (new_count != 0) {
+    rprintf(t, "there are %d extra entries in the table\n", new_count);
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  rprintf(t, "remove everything using iterator");
+  new_count = count - removed_count;
+  for (j = 0; j < MT_HASHTABLE_PARTITIONS; j++) {
+    int data = htable->first_entry(j, &it);
+    while (data > 0) {
+      new_count--;
+      if (new_count % (count / 25) == 0)
+        fprintf(stderr, ".");
+      htable->remove_entry(j, &it);
+      data = htable->cur_entry(j, &it);
+    }
+  }
+
+  fprintf(stderr, "done\n");
+  if (new_count != 0) {
+    rprintf(t, "there are %d extra entries in the table\n", new_count);
+    *pstatus = REGRESSION_TEST_FAILED;
+    return;
+  }
+
+  delete htable;
+  *pstatus = REGRESSION_TEST_PASSED;
+}
+
+//-------------------------------------------------------------
+// Test the FailHistory implementation
+//-------------------------------------------------------------
+/* register events into the FailHistory and the number of events
+ * should be correct
+ */
+struct CCFailHistoryTestCont: public Continuation
+{
+  enum
+  { FAIL_WINDOW = 300 };
+  enum
+  {
+    SIMPLE_TEST,
+    MULTIPLE_THREAD_TEST,
+    ROTATING_TEST
+  };
+  int test_mode;
+  int final_status;
+  bool complete;
+  RegressionTest *test;
+  int mainEvent(int event, Event * e);
+    CCFailHistoryTestCont()
+  : Continuation(new_ProxyMutex()),
+    test_mode(SIMPLE_TEST), final_status(0), complete(false), failEvents(NULL), entry(NULL)
+  {
+  }
+
+  CCFailHistoryTestCont(Ptr<ProxyMutex> _mutex, RegressionTest * _test)
+  : Continuation(_mutex),
+    test_mode(SIMPLE_TEST),
+    final_status(REGRESSION_TEST_PASSED), complete(false), test(_test), failEvents(NULL), pending_action(NULL)
+  {
+    SET_HANDLER(&CCFailHistoryTestCont::mainEvent);
+    rule = new CongestionControlRecord;
+    rule->fail_window = FAIL_WINDOW;
+    rule->max_connection_failures = 10;
+    rule->pRecord = new CongestionControlRecord(*rule);
+    entry = new CongestionEntry("dummy_host", 0, rule->pRecord, 0);
+  }
+
+  ~CCFailHistoryTestCont() {
+    if (pending_action) {
+      pending_action->cancel();
+    }
+    entry->put();
+    delete rule;
+    clear_events();
+  }
+
+  void init_events();
+  void clear_events();
+  int check_history(bool print);
+  int schedule_event(int event, Event * e);
+
+  struct FailEvents
+  {
+    time_t time;
+      Link<FailEvents> link;
+  };
+  InkAtomicList *failEvents;
+  CongestionControlRecord *rule;
+  CongestionEntry *entry;
+  Action *pending_action;
+
+};
+
+void
+CCFailHistoryTestCont::clear_events()
+{
+  if (failEvents) {
+    CCFailHistoryTestCont::FailEvents * events =
+      (CCFailHistoryTestCont::FailEvents *) ink_atomiclist_popall(failEvents);
+    while (events != NULL) {
+      CCFailHistoryTestCont::FailEvents * next = events->link.next;
+      delete events;
+      events = next;
+    }
+    delete failEvents;
+    failEvents = NULL;
+  }
+}
+
+void
+CCFailHistoryTestCont::init_events()
+{
+  clear_events();
+
+  failEvents = new InkAtomicList;
+  ink_atomiclist_init(failEvents, "failEvents", (uintptr_t) &((CCFailHistoryTestCont::FailEvents *) 0)->link);
+
+  int i, j;
+  CCFailHistoryTestCont::FailEvents * new_event = NULL;
+
+  switch (test_mode) {
+  case CCFailHistoryTestCont::ROTATING_TEST:
+    for (i = 0; i < 16384; i++) {
+      for (j = 0; j < 10; j++) {
+        new_event = new CCFailHistoryTestCont::FailEvents;
+        // coverity[secure_coding]
+        new_event->time = rand() % (FAIL_WINDOW) + j * FAIL_WINDOW;
+        ink_atomiclist_push(failEvents, new_event);
+      }
+    }
+    break;
+  case CCFailHistoryTestCont::SIMPLE_TEST:
+  default:
+    for (i = 0; i < 65536; i++) {
+      new_event = new CCFailHistoryTestCont::FailEvents;
+      // coverity[secure_coding]
+      new_event->time = rand() % FAIL_WINDOW;
+      ink_atomiclist_push(failEvents, new_event);
+    }
+  }
+}
+
+int
+CCFailHistoryTestCont::schedule_event(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  if (failEvents == NULL)
+    return EVENT_DONE;
+  CCFailHistoryTestCont::FailEvents * f = (CCFailHistoryTestCont::FailEvents *) ink_atomiclist_pop(failEvents);
+  if (f != NULL) {
+    entry->failed_at(f->time);
+    delete f;
+    return EVENT_CONT;
+  }
+  return EVENT_DONE;
+}
+
+int
+CCFailHistoryTestCont::check_history(bool print)
+{
+  if (print) {
+    rprintf(test, "Verify the result\n");
+    rprintf(test, "Content of history\n");
+    int e = 0;
+    for (int i = 0; i < CONG_HIST_ENTRIES; i++) {
+      e += entry->m_history.bins[i];
+      rprintf(test, "bucket %d => events %d , sum = %d\n", i, entry->m_history.bins[i], e);
+    }
+    fprintf(stderr, "Events: %d, CurIndex: %d, LastEvent: %ld, HistLen: %d, BinLen: %d, Start: %ld\n",
+            entry->m_history.events,
+            entry->m_history.cur_index,
+            entry->m_history.last_event, entry->m_history.length, entry->m_history.bin_len, entry->m_history.start);
+    char buf[1024];
+    entry->sprint(buf, 1024, 10);
+    rprintf(test, "%s", buf);
+  }
+  if (test_mode == CCFailHistoryTestCont::SIMPLE_TEST && entry->m_history.events == 65536)
+    return 0;
+  return 0;
+}
+
+int
+CCFailHistoryTestCont::mainEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  test_mode = CCFailHistoryTestCont::SIMPLE_TEST;
+  init_events();
+  entry->init(rule->pRecord);
+  while (schedule_event(0, NULL) == EVENT_CONT);
+  if (check_history(true) == 0) {
+    final_status = REGRESSION_TEST_PASSED;
+  } else {
+    final_status = REGRESSION_TEST_FAILED;
+    goto Ldone;
+  }
+
+  test_mode = CCFailHistoryTestCont::ROTATING_TEST;
+  init_events();
+  entry->init(rule->pRecord);
+  while (schedule_event(0, NULL) == EVENT_CONT);
+  if (check_history(true) == 0) {
+    final_status = REGRESSION_TEST_PASSED;
+  } else {
+    final_status = REGRESSION_TEST_FAILED;
+    goto Ldone;
+  }
+
+Ldone:
+  complete = true;
+  if (complete) {
+    test->status = final_status;
+    delete this;
+    return EVENT_DONE;
+  }
+  return EVENT_CONT;
+}
+
+EXCLUSIVE_REGRESSION_TEST(Congestion_FailHistory) (RegressionTest * t, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  CCFailHistoryTestCont *test = new CCFailHistoryTestCont(make_ptr(new_ProxyMutex()), t);
+  eventProcessor.schedule_in(test, HRTIME_SECONDS(1));
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+}
+
+//-------------------------------------------------------------
+// Test the CongestionDB implementation
+//-------------------------------------------------------------
+/* Insert simulated CongestionEntry into the CongestionDB and
+ * exercise the GC of the DB, remove entries from DB
+ */
+
+struct CCCongestionDBTestCont: public Continuation
+{
+  int final_status;
+  bool complete;
+  RegressionTest *test;
+
+  int mainEvent(int event, Event * e);
+
+  void init();
+  int get_congest_list();
+  CongestionControlRecord *rule;
+  CongestionDB *db;
+  int dbsize;
+  CongestionEntry *gen_CongestionEntry(sockaddr const* ip, int congested = 0);
+
+
+    CCCongestionDBTestCont(Ptr<ProxyMutex> _mutex, RegressionTest * _test):Continuation(_mutex),
+    final_status(REGRESSION_TEST_PASSED), complete(false), test(_test), rule(NULL), db(NULL), dbsize(1024)
+  {
+    SET_HANDLER(&CCCongestionDBTestCont::mainEvent);
+  }
+  virtual ~ CCCongestionDBTestCont()
+  {
+    if (db) {
+      db->removeAllRecords();
+      delete db;
+    }
+    if (rule)
+      delete rule;
+  }
+};
+
+CongestionEntry *
+CCCongestionDBTestCont::gen_CongestionEntry(sockaddr const* ip, int congested)
+{
+  char hostname[INET6_ADDRSTRLEN];
+  uint64_t key;
+  ats_ip_ntop(ip, hostname, sizeof(hostname));
+  key = make_key(hostname, strlen(hostname), ip, rule->pRecord);
+  CongestionEntry *ret = new CongestionEntry(hostname,
+                                             ip,
+                                             rule->pRecord,
+                                             key);
+  ret->m_congested = congested;
+  ret->m_ref_count = 0;
+  return ret;
+}
+
+void
+CCCongestionDBTestCont::init()
+{
+// create/clear db
+  if (!db)
+    db = new CongestionDB(dbsize / MT_HASHTABLE_PARTITIONS);
+  else
+    db->removeAllRecords();
+  if (!rule) {
+    rule = new CongestionControlRecord;
+    rule->fail_window = 300;
+    rule->max_connection_failures = 10;
+    rule->pRecord = new CongestionControlRecord(*rule);
+  }
+
+}
+
+int
+CCCongestionDBTestCont::get_congest_list()
+{
+  int cnt = 0;
+  if (db == NULL)
+    return 0;
+  for (int i = 0; i < db->getSize(); i++) {
+    db->RunTodoList(i);
+    char buf[1024];
+    Iter it;
+
+    CongestionEntry *pEntry = db->first_entry(i, &it);
+    while (pEntry) {
+      cnt++;
+      if (cnt % 100 == 0) {
+        pEntry->sprint(buf, 1024, 100);
+        fprintf(stderr, "%s", buf);
+      }
+      pEntry = db->next_entry(i, &it);
+    }
+  }
+  return cnt;
+}
+
+int
+CCCongestionDBTestCont::mainEvent(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  int to_add = 1 * 1024 * 1024;
+  int i;
+  int items[10] = { 0 };
+  init();
+  rprintf(test, "Add %d records into the db", dbsize);
+
+  for (i = 0; i < dbsize; i++) {
+    if (i % (dbsize / 25) == 0)
+      fprintf(stderr, ".");
+
+    IpEndpoint ip;
+    ats_ip4_set(&ip, i + 255);
+    
+    CongestionEntry *tmp = gen_CongestionEntry(&ip.sa);
+    db->addRecord(tmp->m_key, tmp);
+  }
+  fprintf(stderr, "done\n");
+
+  items[0] = get_congest_list();
+
+  db->removeAllRecords();
+
+  rprintf(test, "There are %d records in the db\n", items[0]);
+
+
+  rprintf(test, "Add %d records into the db", to_add);
+  for (i = 0; i < to_add; i++) {
+    if (i % (to_add / 25) == 0)
+      fprintf(stderr, ".");
+
+    IpEndpoint ip;
+    ats_ip4_set(&ip, i + 255);
+    CongestionEntry *tmp = gen_CongestionEntry(&ip.sa);
+    db->addRecord(tmp->m_key, tmp);
+  }
+
+  items[1] = get_congest_list();
+
+  db->removeAllRecords();
+
+  rprintf(test, "There are %d records in the db\n", items[1]);
+
+  rprintf(test, "Add %d congested records into the db", to_add);
+
+  for (i = 0; i < to_add; i++) {
+    if (i % (to_add / 25) == 0)
+      fprintf(stderr, ".");
+
+    IpEndpoint ip;
+    ats_ip4_set(&ip, i + 255);
+    
+    CongestionEntry *tmp = gen_CongestionEntry(&ip.sa, 1);
+    db->addRecord(tmp->m_key, tmp);
+  }
+  items[2] = get_congest_list();
+  rprintf(test, "There are %d records in the db\n", items[2]);
+
+  db->removeAllRecords();
+
+  for (i = 0; i < 3; i++) {
+    rprintf(test, "After test [%d] there are %d records in the db\n", i + 1, items[i]);
+  }
+
+  complete = true;
+  if (complete) {
+    test->status = final_status;
+    delete this;
+    return EVENT_DONE;
+  }
+  return EVENT_CONT;
+}
+
+EXCLUSIVE_REGRESSION_TEST(Congestion_CongestionDB) (RegressionTest * t, int /* atype ATS_UNUSED */, int *pstatus)
+{
+  CCCongestionDBTestCont *test = new CCCongestionDBTestCont(make_ptr(new_ProxyMutex()), t);
+  eventProcessor.schedule_in(test, HRTIME_SECONDS(1));
+  *pstatus = REGRESSION_TEST_INPROGRESS;
+}
+
+//-------------------------------------------------------------
+// Test the CongestionControl implementation
+//-------------------------------------------------------------
+/* test the whole thing
+ * 1. Match rules
+ * 2. Apply new rules
+ */
+void
+init_CongestionRegressionTest()
+{
+  (void) regressionTest_Congestion_HashTable;
+  (void) regressionTest_Congestion_FailHistory;
+  (void) regressionTest_Congestion_CongestionDB;
+}
diff --git a/proxy/congest/FeatureSpec.txt b/proxy/congest/FeatureSpec.txt
new file mode 100644
index 00000000..7986653d
--- /dev/null
+++ b/proxy/congest/FeatureSpec.txt
@@ -0,0 +1,428 @@
+FEATURE INTRODUCTION
+====================
+
+Feature Name:
+-------------
+	Congestion Control
+
+Synopsis of Feature: 
+-------------------- 
+
+The main purpose of this congestion control feature is to keep track
+of which hosts are congested so that TS will not forward requests to
+those congested hosts; instead, TS will send back to clients a
+Retry-After response to tell them to retry congested hosts at a later
+time.
+
+CASE 1.  Connection Failures:
+------------------------------
+(1) For each request to a live (non-congested) server, TS will try at most m
+    times to connect to the server, and the timeout is n seconds for each try.
+    If TS does not succeed with m tries, then one connection failure is counted
+    towards the server.
+
+    Note that if a client aborts a request before a timeout occurs, it does not
+    count as a connection failure.
+
+(2) A server is marked congested if there are more than M connection failures
+    within N seconds.
+
+(3) If a server is marked congested, then TS will not forward requests to it 
+    until Proxy Retry After Time (PRAT) (which is current time + t)
+
+(4) For a request to a congested server before the server's PRAT time, TS sends
+    a Retry-After response to tell the client to retry the request after
+    Client Retry After Time (CRAT) (= PRAT - current time + T + a random 
+    interger from 0 to alpha).
+
+(5) For a request to a congested server after the server's PRAT time, TS will
+    try at most m' times to connect to the server, and the timeout is n' 
+    seconds for each try.
+
+(6) A congested server will stay dead if TS cannot make a successful 
+    connection; otherwise, the server becomes live again.
+
+CASE 2: Maximum Number of Connections
+-------------------------------------
+TS will temporarily mark a server as congested if a "max_connection" number
+to the server is reached. If a new client request comes in and needs a new 
+connection to the server, the client will get 503 Retry-After back. 
+There is no PRAT on the "max_connection" reached servers.
+
+Here a server can be identified by IP address (per_ip) or by host name 
+(per_host). For example, www.example.com has two IP addresses, 
+209.131.63.206 and 209.131.63.207. If per_ip is used, then each IP address
+has its own number of connection failures, and each IP address will be marked
+congested or not by itself. That is, if 206 is marked congested (but 207 is 
+not), requests can still be forwarded to 207. On the other hand, if per_host is
+used, then one connection failure to either 206 or 207 will be counted to the
+number if connection failures of host www.example.com. If the host 
+www.example.com is marked congested, then essentially both 206 and 207 are
+marked congested. 
+
+We can also use prefix as a secondary specifier to specify the scope of 
+congestion control to sub-host (service) area. For example, 
+   dest_host=www.example.com prefix=/cgi/search.exe
+This rule can detect the stop of the cgi program or database it depends on.
+Each specification has an independent counter. The error of requests to 
+www.example.com/index.html will count independently to the counter of this 
+line. The prefix=/cgi/ means all requests to the objects under /cgi/ have
+one common counter with specified parameters. It does not mean each URI 
+under the directory has its own counter.
+
+The TS administrator will be able to specify the customizeable error_page, 
+the error_page can be customized to return the reason (for example: "The
+site is under maintenance") of congestion for '503'. In the error_page, the
+URL of the page congested, and the Retry-After time can be returned.
+
+ENGINEERING DESCRIPTION:
+========================
+
+Risk points of feature:
+-----------------------
+
+The set of "origin server connect attempts" configuration varibles in 
+records.config will be affected by this feature. See the following 
+"Requirement on Server Management" and the above "Synopsis of feature"
+sections for more information.
+
+Also, there are some known problematic/unexpected behaviors of this feature.
+See the following "Problematic behavior" section.
+
+Effect on SDK/API:
+------------------
+	None.
+
+Management Implications:
+-----------------------
+
+<Record Changes> 
+There is one new config variable to enable/disable/test congestion control.
+	proxy.config.http.congestion_control.enabled INT 0|1|2
+	proxy.config.http.congestion_control.filename STRING congestion.config
+
+
+<Statistics Changes>
+1.  Number of congestions because of connection failures
+    stat name: proxy.process.congestion.congested_on_conn_failures
+2.  Number of congestions because of max_connection reached 
+    stat name: proxy.process.congestion.congested_on_max_connection
+
+
+<Config File>
+A new .config file "congestion.config" is used to specify the parameters for 
+different servers.
+
+Each rule will have one primary key to identify the servers, the primaries 
+can be 
+	dest_host=
+	dest_domain=
+	dest_ip=
+	regex_host=
+
+Each rule can also have secondary keys, secondary keys include
+	prefix=         // for different directory / service
+	port=           // for different server ports
+
+The tag=value pairs are used to specify the rules:
+
+	max_connection_failures=<integer>	//  M
+	fail_window=<interger>			//  N
+	proxy_retry_interval=<integer>		//  t
+	client_wait_interval=<integer>		//  T
+	wait_interval_alpha=<integer>		//alpha
+	live_os_conn_timeout=<integer>		//  n
+	live_os_conn_retries=<integer>		//  m
+	dead_os_conn_timeout=<integer>		//  n'
+	dead_os_conn_retries=<interger>		//  m'
+	max_connection=<integer>		// -1 means unlimited
+	error_page=<page uri>          
+	congestion_scheme=per_ip|per_host
+
+The suggested default values are as follows:
+	max_connection_failures=5
+	fail_window=120
+	proxy_retry_interval=10
+	client_wait_interval=300
+	wait_interval_alpha=30
+	live_os_conn_timeout=60
+	live_os_conn_retries=2
+	dead_os_conn_timeout=15
+	dead_os_conn_retries=1
+	max_connection=-1
+	error_page="congestion#retryAfter"
+	congestion_scheme="per_ip"
+
+The above tag values will be used as default if the tag is not specified 
+in the rule.
+
+The default values can be overrided by setting the records.config variables
+CONFIG proxy.config.http.congestion_control.default.<tag> <INT|STRING> <value>
+
+The following "origin server connect attempts" configuration variables may
+be affected by this congestion control feature:
+	proxy.config.http.connect_attempts_max_retries
+	proxy.config.http.connect_attempts_max_retries_dead_server
+	proxy.config.http.connect_attempts_rr_retries
+	proxy.config.http.connect_attempts_timeout
+	proxy.config.http.down_server.cache_time
+	proxy.config.http.down_server.abort_threshold
+
+For a request to a server that does not have an applicable rule in 
+congestion.config, the values for these "origins server connect attempts" 
+variables are used by TS. Otherwise, the corresponding values specified 
+in congestion.config will override them.
+
+
+<Alarm Changes>
+Add two new alarm types to Traffic Manager:
+1) MGMT_SIGNAL_HTTP_CONGESTED_SERVER  
+	used to indicate a congested server
+2) MGMT_SIGNAL_HTTP_ALLEVIATED_SERVER 
+	used to indicate a congested server is no longer congested
+These alarms are not processed like the other Traffic Manager alarms.
+Whenever these alarms are signalled (even if they are repeat alarms)
+*only* an SNMP trap will be sent. Note, that this means that
+potentially, users can be flooded with SNMP traps if a congested
+server is always signalling an alarm. 
+
+<Web UI Enhancement>
+For configuration purposes, we will add a new "Congestion Control" tab to the 
+"Configure -> Networking -> Connection Management" section of the web UI.  
+Within this tab users can:
+1. enable/disable the congestion control feature
+2. edit the congestion.config file (which will be displayed in a html text box)
+
+
+<Command-Line Interface Enhancement>
+Use the traffic_line command-line interface to retrieve the congestion 
+statistics and monitoring information.
+1. "traffic_line -r <statistic_name>" 
+   Returns the value of the statistic specified 
+2. "traffic_line -q" 
+   Returns a list of currently congested sites (one site per line); 
+   for each congested site, displays the information in the following format: 
+   '<time>|<rule #>|<hostname>|<ip_address>|<scheme>|<prefix>|<congestion reason>|<F#>|<M#>'
+	- time : congestion detected time 
+		 in seconds since 00:00:00 UTC, January 1, 1970.
+	- rule # 
+	- hostname
+	- ip address
+	- scheme: per_ip or per_host
+	- prefix (if none, leave blank)
+	- congestion reason: M or F
+          M - congestion caused by exceeding max connections, 
+	  F - congestion caused by OS response timeout/failure
+        - F#    number of congested requests because of F
+        - M#    number of congested requests because of M
+
+NOTE: In order to use "traffic_line -q", raf must be enabled and have a 
+      raf port specified. These are the default values used.
+	CONFIG proxy.config.raf.enabled INT 1
+	CONFIG proxy.config.raf.port INT 9000
+      If the raf port conflicts with another port, then change it by:
+           traffic_line -s "proxy.config.raf.port" <new-port> 
+
+
+Engineering description of feature:
+-----------------------------------
+Data structure and algorithm:
+
+Congestion Control Database (in memory and disk):
+
+Using Multicache Implementation
+CongestEntry{
+	unsigned int ip;
+	int hostname_offset;
+	int prefix_offset;
+	int last_failure; 
+	char fail_history[17];
+	unsigned int congestion_scheme; // per_ip | per_host;
+	unsigned int congested; //0 | 1
+	short max_connection;
+	short num_connection;
+	short max_connection_failures;
+	unsigned long   num_congested;    // reserved for per server stat.
+};
+
+For each server, TS uses an array of 17 entries to record the number of 
+connection failures. Each entry is 16-bit long and records the number of 
+connection failures for 1/16 of the fail_window, for example, for a 
+fail_window=240 seconds, the granularity of recording is 240/16=15 seconds.
+That is, the first entry records the number of connection failures from time
+t+0 to t+15, and the second entry records the number of connection failures 
+from time t+16 to t+30, and so on. TS will mark the server as congested if 
+the sum of the 9 entries is greater than the specified max_connection_failures.
+Note that this algorithm will count number of failures in the past 240 to 255
+seconds. For higher accuracy, we need to increase the number of entries.
+
+
+Operation:
+----------
+
+The following is an overview of the operation of this congestion control
+feature in TS. After parsing a valid request, a TS calls its HostDB module
+to get the HostDBInfo record for the host name. If the host name has more 
+than one IP address, then TS selects one of them as usual. 
+Then, TS uses the hostname, the selected IP address, and request URL to lookup
+for the first matched rule in congestion.config. 
+
+TS will lookup the CongestionDB  
+
+case 1: "congested" is true and
+         (current time <= "last_failure" + "proxy_retry_window"):
+	TS sends to the client a Retry-After response.
+case 2: "congested" is true and
+	(current time > "last_failure" + "proxy_retry_window"):
+	TS makes a connection to this congested server.
+case 3: "congested" is false and
+        (current connections >= max_connections)
+	TS sends to the client a Retry-After response.
+case 4: "congested" is false and
+	(current connections < max_connections)
+	TS makes a connection to this non-congested server.
+
+Various timeouts and max_retry numbers are set up according to the matched 
+rule in congestion.config.
+
+If a connection failure is detected, TS updates the CongestionDB record. If it
+is case 2, and the connection succeeds, we need to mark the server live again.
+
+
+Problematic Behavior:
+---------------------
+For a host with multiple nicknames, we night mis-calculate the number
+of failures.
+
+For example, 
+	www.berkeley.edu is a nickname for amber.berkeley.edu
+	amber.berkeley.edu has address 128.32.25.12. 
+In this simple case, if you only specify www.berkeley.edu in the rule and use
+per_host scheme, we will miss the info when request use amber.berkeley.edu 
+as the hostname.
+
+Another problem is with the granularity of connection failure recording. In 
+some cases, TS will mark servers congested which is actually not congested 
+according to the rules in congestion.config.
+
+TS will not be able to distinguish a original server busy from TS itself 
+is busy.
+
+Implementation Limits:
+---------------------
+	1. granularity of connection failure records (17 entries).
+	2. maximum number of failures can be recorded (1<<16 = 65536).
+	3. potentail performance hit beause of updating congestion info
+           (need to take locks to update the info)
+Modules need to be touched:
+---------------------------
+ControlMatcher
+	one new primary field is added ---- host_regex
+
+HttpSM / HttpTransact
+	for apparent reasons
+
+KNOWN PROBLEM
+=============
+(1) The config filename for congestion control must be congestion.config, 
+    this is a known bug for TS
+(2) The test case: 
+    proxy.config.http.congestion_control.enabled INT 2 
+    is not implemented, due to the limited time for coding
+
+
+TEST DESCRIPTIONS
+=================
+
+Test description:
+-----------------
+(1) Enable congestion control and specify rules for a few server in 
+    congestion.config. Then run (existing) tests to verify the 
+    "origin server connect attempts" configuration variable are still
+    working for servers that are not specified in congestion.config.
+(2) Enable congestion control and in congestion.config, specify a rule
+    for a server that can be controlled (up/down) and has only one IP
+    address. Verify TS follow the rule for the server by sending requests 
+    for the server thru TS and controlling whether the server is up and 
+    down.
+(3) Specify a prefix rule and a dest_host rule on the same host, and
+    control the service specified by the prefix, check if prefix rule is
+    in effect.
+(4) Repeat test (2) with a server with more than one IP address. Both 
+    congestion schemes (per_ip and per_host) should be tested.
+
+(5) Test all possiable conbinations of rules. Check the error_page and 
+    error logs.
+
+(6) Kill one of the servers that connected to TS, hence the server is 
+    "congested". Ensure the congested alarm is signaled (check the
+    WebUI) and a SNMP trap is sent Re-start the dead
+    server, hence the server is alive. Ensure the alleviated alarm is
+    signaled and a SNMP trap is sent.
+
+Test tool:
+----------
+	syntest could be a good candidate for functional tests.
+	for load test, try jtest combined with syntest.
+
+Test configurations:
+--------------------
+
+
+Change Log:
+===========
+
+Removed Feature(s):
+***  Saving congestion control information to the disk.
+
+New/Modified Feature(s):
+
+*** traffic_line -q output format (short):
+
+short format
+   <time>|<rule #>|<hostname>|<ip_address>|<scheme>|<prefix>|<congestion reason>|<F#>|<M#>
+long format
+   <time>|<rule #>|<hostname>|<ip_address>|<scheme>|<prefix>|<congestion reason>|<F#>|<M#>|<local/GMT time>|<key>|<last_failure>|<num_fail_events>|<internal_ref count>|<num_connections>
+
+	- time : congestion detected time
+		 in seconds since 00:00:00 UTC, January 1, 1970.
+	- rule # 
+	- hostname
+	- ip address
+	- scheme: per_ip or per_host
+	- prefix (if none, leave blank)
+	- congestion reason: M or F
+          M - congestion caused by exceeding max connections, 
+	  F - congestion caused by OS response timeout/failure
+        - F#    number of congested requests because of F
+        - M#    number of congested requests because of M
+	- key: the internal key in congestion control table
+	- local/GMT time:  YYYY/MM/DD hh:mm:ss 
+		CONFIG proxy.config.http.congestion_control.localtime INT 1 //localtime format
+		CONFIG proxy.config.http.congestion_control.localtime INT 0 //GMT format
+
+
+*** telnet localhost <Raf port>
+0 congest list  
+		-- list congested servers at the moment (short format)
+0 congest list long [0-4]
+		-- list congested servers at the moment (long format)
+0 query deadhosts
+		-- list congested servers at the moment
+
+0 congest remove key=XXXXXXXXXXXXXX {key=XXXXXXXXXXXXXX} 
+		-- remove the entries whose keys are listed
+		   manual activate the congested server
+
+0 congest remove host=<hostname>[/prefix]
+
+0 congest remove ip=<xxx.xxx.xxx.xxx>[/prefix]
+
+0 congest remove all
+		-- remove all entries in the congestion control internal table
+
+
+
+
+
+
diff --git a/proxy/congest/MT_hashtable.h b/proxy/congest/MT_hashtable.h
new file mode 100644
index 00000000..2d0bc3bc
--- /dev/null
+++ b/proxy/congest/MT_hashtable.h
@@ -0,0 +1,405 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  MT_hashtable.h
+
+  Multithread Safe Hash table implementation
+
+
+ ****************************************************************************/
+#ifndef MT_HASHTABLE_H_
+#define MT_HASHTABLE_H_
+//#include "Lock.h"
+
+#define MT_HASHTABLE_PARTITION_BITS 6
+#define MT_HASHTABLE_PARTITIONS (1<<MT_HASHTABLE_PARTITION_BITS)
+#define MT_HASHTABLE_PARTITION_MASK    (MT_HASHTABLE_PARTITIONS - 1)
+#define MT_HASHTABLE_MAX_CHAIN_AVG_LEN 4
+template<class key_t, class data_t> struct HashTableEntry
+{
+  key_t key;
+  data_t data;
+  HashTableEntry *next;
+
+  static HashTableEntry *alloc()
+  {
+    return (HashTableEntry *)ats_malloc(sizeof(HashTableEntry));
+  }
+
+  static void free(HashTableEntry * entry)
+  {
+    ats_free(entry);
+  }
+};
+
+/*
+struct MT_ListEntry{
+  MT_ListEntry():next(NULL),prev(NULL){}
+  MT_ListEntry* next;
+  MT_ListEntry* prev;
+};
+
+#define INIT_CHAIN_HEAD(h) {(h)->next = (h)->prev = (h);}
+#define APPEND_TO_CHAIN(h, p) {(p)->next = (h)->next; (h)->next->prev = (p); (p)->prev = (h); (h)->next = (p);}
+#define REMOVE_FROM_CHAIN(p) {(p)->next->prev = (p)->prev; (p)->prev->next = (p)->next; (p)->prev = (p)->next = NULL;}
+#define GET_OBJ_PTR(p, type, offset) ((type*)((char*)(p) - offset))
+*/
+
+template<class key_t, class data_t> class HashTableIteratorState {
+public:
+HashTableIteratorState():cur_buck(-1), ppcur(NULL) {
+  }
+
+  int cur_buck;
+  HashTableEntry<key_t, data_t> **ppcur;
+};
+
+template<class key_t, class data_t> class IMTHashTable {
+public:
+  IMTHashTable(int size, bool(*gc_func) (data_t) = NULL, void (*pre_gc_func) (void) = NULL) {
+    m_gc_func = gc_func;
+    m_pre_gc_func = pre_gc_func;
+    bucket_num = size;
+    cur_size = 0;
+    buckets = new HashTableEntry<key_t, data_t> *[bucket_num];
+    memset(buckets, 0, bucket_num * sizeof(HashTableEntry<key_t, data_t> *));
+  }
+  ~IMTHashTable() {
+    reset();
+  }
+
+  int getBucketNum()
+  {
+    return bucket_num;
+  }
+  int getCurSize()
+  {
+    return cur_size;
+  }
+
+  int bucket_id(key_t key, int a_bucket_num)
+  {
+    return (int) (((key >> MT_HASHTABLE_PARTITION_BITS) ^ key) % a_bucket_num);
+  }
+
+  int bucket_id(key_t key)
+  {
+    return bucket_id(key, bucket_num);
+  }
+
+  void reset()
+  {
+    HashTableEntry<key_t, data_t> *tmp;
+    for (int i = 0; i < bucket_num; i++) {
+      tmp = buckets[i];
+      while (tmp) {
+        buckets[i] = tmp->next;
+        HashTableEntry<key_t, data_t>::free(tmp);
+        tmp = buckets[i];
+      }
+    }
+    delete[]buckets;
+    buckets = NULL;
+  }
+
+  data_t insert_entry(key_t key, data_t data);
+  data_t remove_entry(key_t key);
+  data_t lookup_entry(key_t key);
+
+  data_t first_entry(int bucket_id, HashTableIteratorState<key_t, data_t> *s);
+  static data_t next_entry(HashTableIteratorState<key_t, data_t> *s);
+  static data_t cur_entry(HashTableIteratorState<key_t, data_t> *s);
+  data_t remove_entry(HashTableIteratorState<key_t, data_t> *s);
+
+  void GC(void)
+  {
+    if (m_gc_func == NULL)
+      return;
+    if (m_pre_gc_func)
+      m_pre_gc_func();
+    for (int i = 0; i < bucket_num; i++) {
+      HashTableEntry<key_t, data_t> *cur = buckets[i];
+      HashTableEntry<key_t, data_t> *prev = NULL;
+      HashTableEntry<key_t, data_t> *next = NULL;
+      while (cur != NULL) {
+        next = cur->next;
+        if (m_gc_func(cur->data)) {
+          if (prev != NULL)
+            prev->next = next;
+          else
+            buckets[i] = next;
+          delete cur;
+          cur_size--;
+        } else {
+          prev = cur;
+        }
+        cur = next;
+      }
+    }
+  }
+
+  void resize(int size)
+  {
+    int new_bucket_num = size;
+    HashTableEntry<key_t, data_t> **new_buckets = new HashTableEntry<key_t, data_t> *[new_bucket_num];
+    memset(new_buckets, 0, new_bucket_num * sizeof(HashTableEntry<key_t, data_t> *));
+
+    for (int i = 0; i < bucket_num; i++) {
+      HashTableEntry<key_t, data_t> *cur = buckets[i];
+      HashTableEntry<key_t, data_t> *next = NULL;
+      while (cur != NULL) {
+        next = cur->next;
+        int new_id = bucket_id(cur->key, new_bucket_num);
+        cur->next = new_buckets[new_id];
+        new_buckets[new_id] = cur;
+        cur = next;
+      }
+      buckets[i] = NULL;
+    }
+    delete[]buckets;
+    buckets = new_buckets;
+    bucket_num = new_bucket_num;
+  }
+
+private:
+  HashTableEntry<key_t, data_t> **buckets;
+  int cur_size;
+  int bucket_num;
+  bool(*m_gc_func) (data_t);
+  void (*m_pre_gc_func) (void);
+
+private:
+  IMTHashTable();
+  IMTHashTable(IMTHashTable &);
+};
+
+/*
+ * we can use ClassAllocator here if the malloc performance becomes a problem
+ */
+
+template<class key_t, class data_t> inline data_t IMTHashTable<key_t, data_t>::insert_entry(key_t key, data_t data)
+{
+  int id = bucket_id(key);
+  HashTableEntry<key_t, data_t> *cur = buckets[id];
+  while (cur != NULL && cur->key != key) {
+    cur = cur->next;
+  }
+  if (cur != NULL) {
+    if (data == cur->data)
+      return (data_t) 0;
+    else {
+      data_t tmp = cur->data;
+      cur->data = data;
+      // potential memory leak, need to check the return value by the caller
+      return tmp;
+    }
+  }
+
+  HashTableEntry<key_t, data_t> *newEntry = HashTableEntry<key_t, data_t>::alloc();
+  newEntry->key = key;
+  newEntry->data = data;
+  newEntry->next = buckets[id];
+  buckets[id] = newEntry;
+  cur_size++;
+  if (cur_size / bucket_num > MT_HASHTABLE_MAX_CHAIN_AVG_LEN) {
+    GC();
+    if (cur_size / bucket_num > MT_HASHTABLE_MAX_CHAIN_AVG_LEN)
+      resize(bucket_num * 2);
+  }
+  return (data_t) 0;
+}
+
+
+template<class key_t, class data_t> inline data_t IMTHashTable<key_t, data_t>::remove_entry(key_t key)
+{
+  int id = bucket_id(key);
+  data_t ret = (data_t) 0;
+  HashTableEntry<key_t, data_t> *cur = buckets[id];
+  HashTableEntry<key_t, data_t> *prev = NULL;
+  while (cur != NULL && cur->key != key) {
+    prev = cur;
+    cur = cur->next;
+  }
+  if (cur != NULL) {
+    if (prev != NULL)
+      prev->next = cur->next;
+    else
+      buckets[id] = cur->next;
+    ret = cur->data;
+    HashTableEntry<key_t, data_t>::free(cur);
+    cur_size--;
+  }
+
+  return ret;
+}
+
+template<class key_t, class data_t> inline data_t IMTHashTable<key_t, data_t>::lookup_entry(key_t key)
+{
+  int id = bucket_id(key);
+  data_t ret = (data_t) 0;
+  HashTableEntry<key_t, data_t> *cur = buckets[id];
+  while (cur != NULL && cur->key != key) {
+    cur = cur->next;
+  }
+  if (cur != NULL) {
+    ret = cur->data;
+  }
+  return ret;
+}
+
+
+template<class key_t, class data_t>
+  inline data_t IMTHashTable<key_t, data_t>::first_entry(int bucket_id, HashTableIteratorState<key_t, data_t> *s)
+{
+  s->cur_buck = bucket_id;
+  s->ppcur = &(buckets[bucket_id]);
+  if (*(s->ppcur) != NULL)
+    return (*(s->ppcur))->data;
+  return (data_t) 0;
+}
+
+template<class key_t, class data_t>
+  inline data_t IMTHashTable<key_t, data_t>::next_entry(HashTableIteratorState<key_t, data_t> *s)
+{
+  if ((*(s->ppcur)) != NULL) {
+    s->ppcur = &((*(s->ppcur))->next);
+    if (*(s->ppcur) != NULL)
+      return (*(s->ppcur))->data;
+  }
+  return (data_t) 0;
+}
+
+template<class key_t, class data_t>
+  inline data_t IMTHashTable<key_t, data_t>::cur_entry(HashTableIteratorState<key_t, data_t> *s)
+{
+  if (*(s->ppcur) == NULL)
+    return (data_t) 0;
+  return (*(s->ppcur))->data;
+}
+
+template<class key_t, class data_t>
+  inline data_t IMTHashTable<key_t, data_t>::remove_entry(HashTableIteratorState<key_t, data_t> *s)
+{
+  data_t data = (data_t) 0;
+  HashTableEntry<key_t, data_t> *pEntry = *(s->ppcur);
+  if (pEntry != NULL) {
+    data = pEntry->data;
+    (*(s->ppcur)) = pEntry->next;
+    HashTableEntry<key_t, data_t>::free(pEntry);
+    cur_size--;
+  }
+  return data;
+}
+
+template<class key_t, class data_t> class MTHashTable {
+public:
+  MTHashTable(int size, bool(*gc_func) (data_t) = NULL, void (*pre_gc_func) (void) = NULL) {
+    for (int i = 0; i < MT_HASHTABLE_PARTITIONS; i++) {
+      locks[i] = new_ProxyMutex();
+      hashTables[i] = new IMTHashTable<key_t, data_t> (size, gc_func, pre_gc_func);
+      // INIT_CHAIN_HEAD(&chain_heads[i]);
+      // last_GC_time[i] = 0;
+    }
+    //    cur_items = 0;
+  }
+  ~MTHashTable() {
+    for (int i = 0; i < MT_HASHTABLE_PARTITIONS; i++) {
+      locks[i] = NULL;
+      delete hashTables[i];
+    }
+  }
+  ProxyMutex *lock_for_key(key_t key)
+  {
+    return locks[part_num(key)];
+  }
+
+  int getSize()
+  {
+    return MT_HASHTABLE_PARTITIONS;
+  }
+  int part_num(key_t key)
+  {
+    return (int) (key & MT_HASHTABLE_PARTITION_MASK);
+  }
+  data_t insert_entry(key_t key, data_t data)
+  {
+    // ink_atomic_increment(&cur_items, 1);
+    return hashTables[part_num(key)]->insert_entry(key, data);
+  }
+  data_t remove_entry(key_t key)
+  {
+    // ink_atomic_increment(&cur_items, -1);
+    return hashTables[part_num(key)]->remove_entry(key);
+  }
+  data_t lookup_entry(key_t key)
+  {
+    return hashTables[part_num(key)]->lookup_entry(key);
+  }
+
+  data_t first_entry(int part_id, HashTableIteratorState<key_t, data_t> *s)
+  {
+    data_t ret = (data_t) 0;
+    for (int i = 0; i < hashTables[part_id]->getBucketNum(); i++) {
+      ret = hashTables[part_id]->first_entry(i, s);
+      if (ret != (data_t) 0)
+        return ret;
+    }
+    return (data_t) 0;
+  }
+
+  data_t cur_entry(int part_id, HashTableIteratorState<key_t, data_t> *s)
+  {
+    data_t data = IMTHashTable<key_t, data_t>::cur_entry(s);
+    if (!data)
+      data = next_entry(part_id, s);
+    return data;
+  };
+  data_t next_entry(int part_id, HashTableIteratorState<key_t, data_t> *s)
+  {
+    data_t ret = IMTHashTable<key_t, data_t>::next_entry(s);
+    if (ret != (data_t) 0)
+      return ret;
+    for (int i = s->cur_buck + 1; i < hashTables[part_id]->getBucketNum(); i++) {
+      ret = hashTables[part_id]->first_entry(i, s);
+      if (ret != (data_t) 0)
+        return ret;
+    }
+    return (data_t) 0;
+  }
+  data_t remove_entry(int part_id, HashTableIteratorState<key_t, data_t> *s)
+  {
+    // ink_atomic_increment(&cur_items, -1);
+    return hashTables[part_id]->remove_entry(s);
+  }
+
+private:
+  IMTHashTable<key_t, data_t> *hashTables[MT_HASHTABLE_PARTITIONS];
+  Ptr<ProxyMutex> locks[MT_HASHTABLE_PARTITIONS];
+  // MT_ListEntry chain_heads[MT_HASHTABLE_PARTITIONS];
+  // int last_GC_time[MT_HASHTABLE_PARTITIONS];
+  // int32_t cur_items;
+};
+
+#endif /* MT_HASHTABLE_H_ */
diff --git a/proxy/congest/Makefile.am b/proxy/congest/Makefile.am
new file mode 100644
index 00000000..8b9287cc
--- /dev/null
+++ b/proxy/congest/Makefile.am
@@ -0,0 +1,45 @@
+# Makefile.am for Congestion Control
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/proxy/hdrs
+
+noinst_LIBRARIES = libCongestionControl.a
+
+libCongestionControl_a_SOURCES = \
+  Congestion.cc \
+  Congestion.h \
+  CongestionDB.cc \
+  CongestionDB.h \
+  CongestionStats.cc \
+  CongestionStats.h \
+  MT_hashtable.h
+
+if BUILD_TESTS
+  libCongestionControl_a_SOURCES +=   CongestionTest.cc
+endif
diff --git a/proxy/congest/Makefile.in b/proxy/congest/Makefile.in
new file mode 100644
index 00000000..99cd8eeb
--- /dev/null
+++ b/proxy/congest/Makefile.in
@@ -0,0 +1,881 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for Congestion Control
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
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+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
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+  for flg in $$sane_makeflags; do \
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+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
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+POST_INSTALL = :
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+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
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+am__v_AR_1 = 
+libCongestionControl_a_AR = $(AR) $(ARFLAGS)
+libCongestionControl_a_LIBADD =
+am__libCongestionControl_a_SOURCES_DIST = Congestion.cc Congestion.h \
+	CongestionDB.cc CongestionDB.h CongestionStats.cc \
+	CongestionStats.h MT_hashtable.h CongestionTest.cc
+@BUILD_TESTS_TRUE@am__objects_1 = CongestionTest.$(OBJEXT)
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+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/example_alarm_bin.sh b/proxy/example_alarm_bin.sh
new file mode 100644
index 00000000..c288f076
--- /dev/null
+++ b/proxy/example_alarm_bin.sh
@@ -0,0 +1,71 @@
+#!/bin/sh
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+#   Example alarm bin program. Proxy manager execs this script with
+# a brief message as its argument. This program sends mail to the
+# e-mail address passed in by the caller.  The subject of the
+# e-mail is the passed in message, and a 'date' stamp is added 
+# as the body.
+#
+ostype=`(uname -s) 2>/dev/null`
+if [ "$ostype" = "Linux" ]; then
+SENDMAIL="/usr/sbin/sendmail"
+else
+  SENDMAIL="/usr/lib/sendmail"
+fi
+
+if [ ! -x $SENDMAIL ]; then
+    echo "$0: Could not find $SENDMAIL program"
+    exit 1
+fi
+
+if [ $# -eq 1 ]; then
+  # if only one parameter, then no email information was provided
+  msg="`hostname` $1"
+  echo
+  echo "[example_alarm_bin.sh] no e-mail sent: $msg"
+  echo
+  exit 0
+
+elif [ $# -eq 4 ]; then
+  # if four parameters, the caller specified email information
+  msg="`hostname` $1"
+  email_from_name=$2
+  email_from_addr=$3
+  email_to_addr=$4
+
+  result=`(echo "From: $email_from_name <$email_from_addr>"; echo "To: $email_to_addr"; echo "Subject: $msg"; echo; date) | $SENDMAIL -bm $email_to_addr`
+  if [ "$result" = "" ]; then
+    echo
+    echo "[example_alarm_bin.sh] sent alarm: $msg";
+    echo
+    exit 0
+  else
+    echo
+    echo "[example_alarm_bin.sh] sendmail failed"
+    echo
+    exit 1
+  fi
+
+else
+  # give a little help
+  echo "Usage: example_alarm_bin.sh <message> [<email_from_name> <email_from_addr> <email_to_addr>]"
+  exit
+
+fi
diff --git a/proxy/example_prep.sh b/proxy/example_prep.sh
new file mode 100644
index 00000000..dcef54b7
--- /dev/null
+++ b/proxy/example_prep.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+
+echo "[example_prep.sh] Checking/Moving old cores...";
+
+HOST=`uname -n`
+export HOST
+NOW=`date | tr ' ' '-'`
+
+WHERE="$ROOT"
+[ -z "$WHERE" ] && WHERE="$INST_ROOT"
+[ -z "$WHERE" ] && WHERE=`head -1 /etc/traffic_server 2>/dev/null`
+[ -z "$WHERE" ] && WHERE="/home/trafficserver"
+
+[ -f core ] && mv core ${WHERE}/logs/traffic_server.core.$HOST.$NOW
diff --git a/proxy/hdrs/HTTP.cc b/proxy/hdrs/HTTP.cc
new file mode 100644
index 00000000..5933381c
--- /dev/null
+++ b/proxy/hdrs/HTTP.cc
@@ -0,0 +1,2129 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_defs.h"
+#include "libts.h"
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "HTTP.h"
+#include "HdrToken.h"
+#include "Diags.h"
+
+
+/***********************************************************************
+ *                                                                     *
+ *                    C O M P I L E    O P T I O N S                   *
+ *                                                                     *
+ ***********************************************************************/
+
+#define ENABLE_PARSER_FAST_PATHS	1
+
+/***********************************************************************
+ *                                                                     *
+ *                          C O N S T A N T S                          *
+ *                                                                     *
+ ***********************************************************************/
+
+// TODO: We should enable the creation and use of these WKS. XXXX
+#if 0
+static const char *cache_control_values[SIZEOF(cache_control_names)];
+#endif
+
+const char *HTTP_METHOD_CONNECT;
+const char *HTTP_METHOD_DELETE;
+const char *HTTP_METHOD_GET;
+const char *HTTP_METHOD_HEAD;
+const char *HTTP_METHOD_ICP_QUERY;
+const char *HTTP_METHOD_OPTIONS;
+const char *HTTP_METHOD_POST;
+const char *HTTP_METHOD_PURGE;
+const char *HTTP_METHOD_PUT;
+const char *HTTP_METHOD_TRACE;
+const char *HTTP_METHOD_PUSH;
+
+int HTTP_WKSIDX_CONNECT;
+int HTTP_WKSIDX_DELETE;
+int HTTP_WKSIDX_GET;
+int HTTP_WKSIDX_HEAD;
+int HTTP_WKSIDX_ICP_QUERY;
+int HTTP_WKSIDX_OPTIONS;
+int HTTP_WKSIDX_POST;
+int HTTP_WKSIDX_PURGE;
+int HTTP_WKSIDX_PUT;
+int HTTP_WKSIDX_TRACE;
+int HTTP_WKSIDX_PUSH;
+int HTTP_WKSIDX_METHODS_CNT = 0;
+
+int HTTP_LEN_CONNECT;
+int HTTP_LEN_DELETE;
+int HTTP_LEN_GET;
+int HTTP_LEN_HEAD;
+int HTTP_LEN_ICP_QUERY;
+int HTTP_LEN_OPTIONS;
+int HTTP_LEN_POST;
+int HTTP_LEN_PURGE;
+int HTTP_LEN_PUT;
+int HTTP_LEN_TRACE;
+int HTTP_LEN_PUSH;
+
+const char *HTTP_VALUE_BYTES;
+const char *HTTP_VALUE_CHUNKED;
+const char *HTTP_VALUE_CLOSE;
+const char *HTTP_VALUE_COMPRESS;
+const char *HTTP_VALUE_DEFLATE;
+const char *HTTP_VALUE_GZIP;
+const char *HTTP_VALUE_IDENTITY;
+const char *HTTP_VALUE_KEEP_ALIVE;
+const char *HTTP_VALUE_MAX_AGE;
+const char *HTTP_VALUE_MAX_STALE;
+const char *HTTP_VALUE_MIN_FRESH;
+const char *HTTP_VALUE_MUST_REVALIDATE;
+const char *HTTP_VALUE_NONE;
+const char *HTTP_VALUE_NO_CACHE;
+const char *HTTP_VALUE_NO_STORE;
+const char *HTTP_VALUE_NO_TRANSFORM;
+const char *HTTP_VALUE_ONLY_IF_CACHED;
+const char *HTTP_VALUE_PRIVATE;
+const char *HTTP_VALUE_PROXY_REVALIDATE;
+const char *HTTP_VALUE_PUBLIC;
+const char *HTTP_VALUE_S_MAXAGE;
+const char *HTTP_VALUE_NEED_REVALIDATE_ONCE;
+const char *HTTP_VALUE_100_CONTINUE;
+// Cache-control: extension "need-revalidate-once" is used internally by T.S.
+// to invalidate a document, and it is not returned/forwarded.
+// If a cached document has this extension set (ie, is invalidated),
+// then the T.S. needs to revalidate the document once before returning it.
+// After a successful revalidation, the extension will be removed by T.S.
+// To set or unset this directive should be done via the following two
+// function:
+//      set_cooked_cc_need_revalidate_once()
+//      unset_cooked_cc_need_revalidate_once()
+// To test, use regular Cache-control testing functions, eg,
+//      is_cache_control_set(HTTP_VALUE_NEED_REVALIDATE_ONCE)
+
+int HTTP_LEN_BYTES;
+int HTTP_LEN_CHUNKED;
+int HTTP_LEN_CLOSE;
+int HTTP_LEN_COMPRESS;
+int HTTP_LEN_DEFLATE;
+int HTTP_LEN_GZIP;
+int HTTP_LEN_IDENTITY;
+int HTTP_LEN_KEEP_ALIVE;
+int HTTP_LEN_MAX_AGE;
+int HTTP_LEN_MAX_STALE;
+int HTTP_LEN_MIN_FRESH;
+int HTTP_LEN_MUST_REVALIDATE;
+int HTTP_LEN_NONE;
+int HTTP_LEN_NO_CACHE;
+int HTTP_LEN_NO_STORE;
+int HTTP_LEN_NO_TRANSFORM;
+int HTTP_LEN_ONLY_IF_CACHED;
+int HTTP_LEN_PRIVATE;
+int HTTP_LEN_PROXY_REVALIDATE;
+int HTTP_LEN_PUBLIC;
+int HTTP_LEN_S_MAXAGE;
+int HTTP_LEN_NEED_REVALIDATE_ONCE;
+int HTTP_LEN_100_CONTINUE;
+
+Arena* const HTTPHdr::USE_HDR_HEAP_MAGIC = reinterpret_cast<Arena*>(1);
+
+/***********************************************************************
+ *                                                                     *
+ *                 U T I L I T Y    R O U T I N E S                    *
+ *                                                                     *
+ ***********************************************************************/
+
+inline static int
+is_digit(char c)
+{
+  return ((c <= '9') && (c >= '0'));
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                         M A I N    C O D E                          *
+ *                                                                     *
+ ***********************************************************************/
+
+void
+http_hdr_adjust(HTTPHdrImpl */* hdrp ATS_UNUSED */, int32_t /* offset ATS_UNUSED */, int32_t /* length ATS_UNUSED */,
+                int32_t /* delta ATS_UNUSED */)
+{
+  ink_release_assert(!"http_hdr_adjust not implemented");
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_init()
+{
+  static int init = 1;
+
+  if (init) {
+    init = 0;
+
+    mime_init();
+    url_init();
+
+    HTTP_METHOD_CONNECT = hdrtoken_string_to_wks("CONNECT");
+    HTTP_METHOD_DELETE = hdrtoken_string_to_wks("DELETE");
+    HTTP_METHOD_GET = hdrtoken_string_to_wks("GET");
+    HTTP_METHOD_HEAD = hdrtoken_string_to_wks("HEAD");
+    HTTP_METHOD_ICP_QUERY = hdrtoken_string_to_wks("ICP_QUERY");
+    HTTP_METHOD_OPTIONS = hdrtoken_string_to_wks("OPTIONS");
+    HTTP_METHOD_POST = hdrtoken_string_to_wks("POST");
+    HTTP_METHOD_PURGE = hdrtoken_string_to_wks("PURGE");
+    HTTP_METHOD_PUT = hdrtoken_string_to_wks("PUT");
+    HTTP_METHOD_TRACE = hdrtoken_string_to_wks("TRACE");
+    HTTP_METHOD_PUSH = hdrtoken_string_to_wks("PUSH");
+
+    // HTTP methods index calculation. Don't forget to count them!
+    // Don't change the order of calculation! Each index has related bitmask (see http quick filter)
+    HTTP_WKSIDX_CONNECT = hdrtoken_wks_to_index(HTTP_METHOD_CONNECT);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_DELETE = hdrtoken_wks_to_index(HTTP_METHOD_DELETE);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_GET = hdrtoken_wks_to_index(HTTP_METHOD_GET);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_HEAD = hdrtoken_wks_to_index(HTTP_METHOD_HEAD);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_ICP_QUERY = hdrtoken_wks_to_index(HTTP_METHOD_ICP_QUERY);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_OPTIONS = hdrtoken_wks_to_index(HTTP_METHOD_OPTIONS);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_POST = hdrtoken_wks_to_index(HTTP_METHOD_POST);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_PURGE = hdrtoken_wks_to_index(HTTP_METHOD_PURGE);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_PUT = hdrtoken_wks_to_index(HTTP_METHOD_PUT);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_TRACE = hdrtoken_wks_to_index(HTTP_METHOD_TRACE);
+    HTTP_WKSIDX_METHODS_CNT++;
+    HTTP_WKSIDX_PUSH = hdrtoken_wks_to_index(HTTP_METHOD_PUSH);
+    HTTP_WKSIDX_METHODS_CNT++;
+
+
+    HTTP_LEN_CONNECT = hdrtoken_wks_to_length(HTTP_METHOD_CONNECT);
+    HTTP_LEN_DELETE = hdrtoken_wks_to_length(HTTP_METHOD_DELETE);
+    HTTP_LEN_GET = hdrtoken_wks_to_length(HTTP_METHOD_GET);
+    HTTP_LEN_HEAD = hdrtoken_wks_to_length(HTTP_METHOD_HEAD);
+    HTTP_LEN_ICP_QUERY = hdrtoken_wks_to_length(HTTP_METHOD_ICP_QUERY);
+    HTTP_LEN_OPTIONS = hdrtoken_wks_to_length(HTTP_METHOD_OPTIONS);
+    HTTP_LEN_POST = hdrtoken_wks_to_length(HTTP_METHOD_POST);
+    HTTP_LEN_PURGE = hdrtoken_wks_to_length(HTTP_METHOD_PURGE);
+    HTTP_LEN_PUT = hdrtoken_wks_to_length(HTTP_METHOD_PUT);
+    HTTP_LEN_TRACE = hdrtoken_wks_to_length(HTTP_METHOD_TRACE);
+    HTTP_LEN_PUSH = hdrtoken_wks_to_length(HTTP_METHOD_PUSH);
+
+    HTTP_VALUE_BYTES = hdrtoken_string_to_wks("bytes");
+    HTTP_VALUE_CHUNKED = hdrtoken_string_to_wks("chunked");
+    HTTP_VALUE_CLOSE = hdrtoken_string_to_wks("close");
+    HTTP_VALUE_COMPRESS = hdrtoken_string_to_wks("compress");
+    HTTP_VALUE_DEFLATE = hdrtoken_string_to_wks("deflate");
+    HTTP_VALUE_GZIP = hdrtoken_string_to_wks("gzip");
+    HTTP_VALUE_IDENTITY = hdrtoken_string_to_wks("identity");
+    HTTP_VALUE_KEEP_ALIVE = hdrtoken_string_to_wks("keep-alive");
+    HTTP_VALUE_MAX_AGE = hdrtoken_string_to_wks("max-age");
+    HTTP_VALUE_MAX_STALE = hdrtoken_string_to_wks("max-stale");
+    HTTP_VALUE_MIN_FRESH = hdrtoken_string_to_wks("min-fresh");
+    HTTP_VALUE_MUST_REVALIDATE = hdrtoken_string_to_wks("must-revalidate");
+    HTTP_VALUE_NONE = hdrtoken_string_to_wks("none");
+    HTTP_VALUE_NO_CACHE = hdrtoken_string_to_wks("no-cache");
+    HTTP_VALUE_NO_STORE = hdrtoken_string_to_wks("no-store");
+    HTTP_VALUE_NO_TRANSFORM = hdrtoken_string_to_wks("no-transform");
+    HTTP_VALUE_ONLY_IF_CACHED = hdrtoken_string_to_wks("only-if-cached");
+    HTTP_VALUE_PRIVATE = hdrtoken_string_to_wks("private");
+    HTTP_VALUE_PROXY_REVALIDATE = hdrtoken_string_to_wks("proxy-revalidate");
+    HTTP_VALUE_PUBLIC = hdrtoken_string_to_wks("public");
+    HTTP_VALUE_S_MAXAGE = hdrtoken_string_to_wks("s-maxage");
+    HTTP_VALUE_NEED_REVALIDATE_ONCE = hdrtoken_string_to_wks("need-revalidate-once");
+    HTTP_VALUE_100_CONTINUE = hdrtoken_string_to_wks("100-continue");
+
+    HTTP_LEN_BYTES = hdrtoken_wks_to_length(HTTP_VALUE_BYTES);
+    HTTP_LEN_CHUNKED = hdrtoken_wks_to_length(HTTP_VALUE_CHUNKED);
+    HTTP_LEN_CLOSE = hdrtoken_wks_to_length(HTTP_VALUE_CLOSE);
+    HTTP_LEN_COMPRESS = hdrtoken_wks_to_length(HTTP_VALUE_COMPRESS);
+    HTTP_LEN_DEFLATE = hdrtoken_wks_to_length(HTTP_VALUE_DEFLATE);
+    HTTP_LEN_GZIP = hdrtoken_wks_to_length(HTTP_VALUE_GZIP);
+    HTTP_LEN_IDENTITY = hdrtoken_wks_to_length(HTTP_VALUE_IDENTITY);
+    HTTP_LEN_KEEP_ALIVE = hdrtoken_wks_to_length(HTTP_VALUE_KEEP_ALIVE);
+    HTTP_LEN_MAX_AGE = hdrtoken_wks_to_length(HTTP_VALUE_MAX_AGE);
+    HTTP_LEN_MAX_STALE = hdrtoken_wks_to_length(HTTP_VALUE_MAX_STALE);
+    HTTP_LEN_MIN_FRESH = hdrtoken_wks_to_length(HTTP_VALUE_MIN_FRESH);
+    HTTP_LEN_MUST_REVALIDATE = hdrtoken_wks_to_length(HTTP_VALUE_MUST_REVALIDATE);
+    HTTP_LEN_NONE = hdrtoken_wks_to_length(HTTP_VALUE_NONE);
+    HTTP_LEN_NO_CACHE = hdrtoken_wks_to_length(HTTP_VALUE_NO_CACHE);
+    HTTP_LEN_NO_STORE = hdrtoken_wks_to_length(HTTP_VALUE_NO_STORE);
+    HTTP_LEN_NO_TRANSFORM = hdrtoken_wks_to_length(HTTP_VALUE_NO_TRANSFORM);
+    HTTP_LEN_ONLY_IF_CACHED = hdrtoken_wks_to_length(HTTP_VALUE_ONLY_IF_CACHED);
+    HTTP_LEN_PRIVATE = hdrtoken_wks_to_length(HTTP_VALUE_PRIVATE);
+    HTTP_LEN_PROXY_REVALIDATE = hdrtoken_wks_to_length(HTTP_VALUE_PROXY_REVALIDATE);
+    HTTP_LEN_PUBLIC = hdrtoken_wks_to_length(HTTP_VALUE_PUBLIC);
+    HTTP_LEN_S_MAXAGE = hdrtoken_wks_to_length(HTTP_VALUE_S_MAXAGE);
+    HTTP_LEN_NEED_REVALIDATE_ONCE = hdrtoken_wks_to_length(HTTP_VALUE_NEED_REVALIDATE_ONCE);
+    HTTP_LEN_100_CONTINUE = hdrtoken_wks_to_length(HTTP_VALUE_100_CONTINUE);
+
+    // TODO: We need to look into enable these CC values as WKS XXX
+#if 0
+    for (int i = 0; i < (int) SIZEOF(cache_control_values); i++) {
+      cache_control_values[i] = hdrtoken_string_to_wks(cache_control_names[i]);
+    }
+#endif
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+HTTPHdrImpl *
+http_hdr_create(HdrHeap *heap, HTTPType polarity)
+{
+  HTTPHdrImpl *hh;
+
+  hh = (HTTPHdrImpl *) heap->allocate_obj(sizeof(HTTPHdrImpl), HDR_HEAP_OBJ_HTTP_HEADER);
+  http_hdr_init(heap, hh, polarity);
+  return (hh);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_init(HdrHeap *heap, HTTPHdrImpl *hh, HTTPType polarity)
+{
+  memset(&(hh->u), 0, sizeof(hh->u));
+  hh->m_polarity = polarity;
+  hh->m_version = HTTP_VERSION(0, 9);
+  hh->m_fields_impl = mime_hdr_create(heap);
+  if (polarity == HTTP_TYPE_REQUEST) {
+    hh->u.req.m_url_impl = url_create(heap);
+    hh->u.req.m_method_wks_idx = -1;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_copy_onto(HTTPHdrImpl *s_hh, HdrHeap *s_heap, HTTPHdrImpl *d_hh, HdrHeap *d_heap, bool inherit_strs)
+{
+  MIMEHdrImpl *s_mh, *d_mh;
+  URLImpl *s_url, *d_url;
+  HTTPType d_polarity;
+
+  s_mh = s_hh->m_fields_impl;
+  s_url = s_hh->u.req.m_url_impl;
+  d_mh = d_hh->m_fields_impl;
+  d_url = d_hh->u.req.m_url_impl;
+  d_polarity = d_hh->m_polarity;
+
+  ink_assert(s_hh->m_polarity != HTTP_TYPE_UNKNOWN);
+  ink_assert(s_mh != NULL);
+  ink_assert(d_mh != NULL);
+
+  memcpy(d_hh, s_hh, sizeof(HTTPHdrImpl));
+  d_hh->m_fields_impl = d_mh;   // restore pre-memcpy mime impl
+
+  if (s_hh->m_polarity == HTTP_TYPE_REQUEST) {
+    if (d_polarity == HTTP_TYPE_REQUEST) {
+      d_hh->u.req.m_url_impl = d_url;   // restore pre-memcpy url impl
+    } else {
+      d_url = d_hh->u.req.m_url_impl = url_create(d_heap);      // create url
+    }
+    url_copy_onto(s_url, s_heap, d_url, d_heap, false);
+  } else if (d_polarity == HTTP_TYPE_REQUEST) {
+    // gender bender.  Need to kill off old url
+    url_clear(d_url);
+  }
+
+  mime_hdr_copy_onto(s_mh, s_heap, d_mh, d_heap, false);
+  if (inherit_strs)
+    d_heap->inherit_string_heaps(s_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+HTTPHdrImpl *
+http_hdr_clone(HTTPHdrImpl *s_hh, HdrHeap *s_heap, HdrHeap *d_heap)
+{
+  HTTPHdrImpl *d_hh;
+
+  // FIX: A future optimization is to copy contiguous objects with
+  //      one single memcpy.  For this first optimization, we just
+  //      copy each object separately.
+
+  d_hh = http_hdr_create(d_heap, s_hh->m_polarity);
+  http_hdr_copy_onto(s_hh, s_heap, d_hh, d_heap, ((s_heap != d_heap) ? true : false));
+  return (d_hh);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static inline char *
+http_hdr_version_to_string(int32_t version, char *buf9)
+{
+  ink_assert(HTTP_MAJOR(version) < 10);
+  ink_assert(HTTP_MINOR(version) < 10);
+
+  buf9[0] = 'H';
+  buf9[1] = 'T';
+  buf9[2] = 'T';
+  buf9[3] = 'P';
+  buf9[4] = '/';
+  buf9[5] = '0' + HTTP_MAJOR(version);
+  buf9[6] = '.';
+  buf9[7] = '0' + HTTP_MINOR(version);
+  buf9[8] = '\0';
+
+  return (buf9);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+http_version_print(int32_t version, char *buf, int bufsize, int *bufindex, int *dumpoffset)
+{
+#define TRY(x)  if (!x) return 0
+
+  char tmpbuf[16];
+  http_hdr_version_to_string(version, tmpbuf);
+  TRY(mime_mem_print(tmpbuf, 8, buf, bufsize, bufindex, dumpoffset));
+  return 1;
+
+#undef TRY
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+http_hdr_print(HdrHeap *heap, HTTPHdrImpl *hdr, char *buf, int bufsize, int *bufindex, int *dumpoffset)
+{
+#define TRY(x)  if (!x) return 0
+
+  int tmplen, hdrstat;
+  char tmpbuf[32];
+  char *p;
+
+  ink_assert((hdr->m_polarity == HTTP_TYPE_REQUEST) || (hdr->m_polarity == HTTP_TYPE_RESPONSE));
+
+  if (hdr->m_polarity == HTTP_TYPE_REQUEST) {
+
+    if (hdr->u.req.m_ptr_method == NULL)
+      return 1;
+
+    if ((buf != NULL) && (*dumpoffset == 0) && (bufsize - *bufindex >= hdr->u.req.m_len_method + 1)) {  // fastpath
+
+      p = buf + *bufindex;
+      memcpy(p, hdr->u.req.m_ptr_method, hdr->u.req.m_len_method);
+      p += hdr->u.req.m_len_method;
+      *p++ = ' ';
+      *bufindex += hdr->u.req.m_len_method + 1;
+
+      if (hdr->u.req.m_url_impl) {
+        TRY(url_print(hdr->u.req.m_url_impl, buf, bufsize, bufindex, dumpoffset));
+        if (bufsize - *bufindex >= 1) {
+          if (hdr->u.req.m_method_wks_idx == HTTP_WKSIDX_CONNECT) {
+              *bufindex -= 1; // remove trailing slash for CONNECT request
+          }
+          p = buf + *bufindex;
+          *p++ = ' ';
+          *bufindex += 1;
+        } else {
+          return 0;
+        }
+      }
+
+      if (bufsize - *bufindex >= 9) {
+        http_hdr_version_to_string(hdr->m_version, p);
+        *bufindex += 9 - 1;     // overwrite '\0';
+      } else {
+        TRY(http_version_print(hdr->m_version, buf, bufsize, bufindex, dumpoffset));
+      }
+
+      if (bufsize - *bufindex >= 2) {
+        p = buf + *bufindex;
+        *p++ = '\r';
+        *p++ = '\n';
+        *bufindex += 2;
+      } else {
+        TRY(mime_mem_print("\r\n", 2, buf, bufsize, bufindex, dumpoffset));
+      }
+
+      TRY(mime_hdr_print(heap, hdr->m_fields_impl, buf, bufsize, bufindex, dumpoffset));
+
+    } else {
+
+      TRY(mime_mem_print(hdr->u.req.m_ptr_method, hdr->u.req.m_len_method, buf, bufsize, bufindex, dumpoffset));
+
+      TRY(mime_mem_print(" ", 1, buf, bufsize, bufindex, dumpoffset));
+
+      if (hdr->u.req.m_url_impl) {
+        TRY(url_print(hdr->u.req.m_url_impl, buf, bufsize, bufindex, dumpoffset));
+        TRY(mime_mem_print(" ", 1, buf, bufsize, bufindex, dumpoffset));
+      }
+
+      TRY(http_version_print(hdr->m_version, buf, bufsize, bufindex, dumpoffset));
+
+      TRY(mime_mem_print("\r\n", 2, buf, bufsize, bufindex, dumpoffset));
+
+      TRY(mime_hdr_print(heap, hdr->m_fields_impl, buf, bufsize, bufindex, dumpoffset));
+    }
+
+  } else {                      //  hdr->m_polarity == HTTP_TYPE_RESPONSE
+
+    if ((buf != NULL) && (*dumpoffset == 0) && (bufsize - *bufindex >= 9 + 6 + 1)) {    // fastpath
+
+      p = buf + *bufindex;
+      http_hdr_version_to_string(hdr->m_version, p);
+      p += 8;                   // overwrite '\0' with space
+      *p++ = ' ';
+      *bufindex += 9;
+
+      hdrstat = http_hdr_status_get(hdr);
+      if (hdrstat == 200) {
+        *p++ = '2';
+        *p++ = '0';
+        *p++ = '0';
+        tmplen = 3;
+      } else {
+        tmplen = mime_format_int(p, hdrstat, (bufsize - (p - buf)));
+        ink_assert(tmplen <= 6);
+        p += tmplen;
+      }
+      *p++ = ' ';
+      *bufindex += tmplen + 1;
+
+      if (hdr->u.resp.m_ptr_reason) {
+        TRY(mime_mem_print(hdr->u.resp.m_ptr_reason, hdr->u.resp.m_len_reason, buf, bufsize, bufindex, dumpoffset));
+      }
+
+      if (bufsize - *bufindex >= 2) {
+        p = buf + *bufindex;
+        *p++ = '\r';
+        *p++ = '\n';
+        *bufindex += 2;
+      } else {
+        TRY(mime_mem_print("\r\n", 2, buf, bufsize, bufindex, dumpoffset));
+      }
+
+      TRY(mime_hdr_print(heap, hdr->m_fields_impl, buf, bufsize, bufindex, dumpoffset));
+
+    } else {
+
+      TRY(http_version_print(hdr->m_version, buf, bufsize, bufindex, dumpoffset));
+
+      TRY(mime_mem_print(" ", 1, buf, bufsize, bufindex, dumpoffset));
+
+      tmplen = mime_format_int(tmpbuf, http_hdr_status_get(hdr), sizeof(tmpbuf));
+
+      TRY(mime_mem_print(tmpbuf, tmplen, buf, bufsize, bufindex, dumpoffset));
+
+      TRY(mime_mem_print(" ", 1, buf, bufsize, bufindex, dumpoffset));
+
+      if (hdr->u.resp.m_ptr_reason) {
+        TRY(mime_mem_print(hdr->u.resp.m_ptr_reason, hdr->u.resp.m_len_reason, buf, bufsize, bufindex, dumpoffset));
+      }
+
+      TRY(mime_mem_print("\r\n", 2, buf, bufsize, bufindex, dumpoffset));
+
+      TRY(mime_hdr_print(heap, hdr->m_fields_impl, buf, bufsize, bufindex, dumpoffset));
+
+    }
+  }
+
+  return 1;
+
+#undef TRY
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_describe(HdrHeapObjImpl *raw, bool recurse)
+{
+  HTTPHdrImpl *obj = (HTTPHdrImpl *) raw;
+
+  if (obj->m_polarity == HTTP_TYPE_REQUEST) {
+    Debug("http", "[TYPE: REQ, V: %04X, URL: %p, METHOD: \"%.*s\", METHOD_LEN: %d, FIELDS: %p]\n",
+          obj->m_version, obj->u.req.m_url_impl,
+          obj->u.req.m_len_method, (obj->u.req.m_ptr_method ? obj->u.req.m_ptr_method : "NULL"),
+          obj->u.req.m_len_method, obj->m_fields_impl);
+    if (recurse) {
+      if (obj->u.req.m_url_impl)
+        obj_describe(obj->u.req.m_url_impl, recurse);
+      if (obj->m_fields_impl)
+        obj_describe(obj->m_fields_impl, recurse);
+    }
+  } else {
+    Debug("http", "[TYPE: RSP, V: %04X, STATUS: %d, REASON: \"%.*s\", REASON_LEN: %d, FIELDS: %p]\n",
+          obj->m_version, obj->u.resp.m_status,
+          obj->u.resp.m_len_reason, (obj->u.resp.m_ptr_reason ? obj->u.resp.m_ptr_reason : "NULL"),
+          obj->u.resp.m_len_reason, obj->m_fields_impl);
+    if (recurse) {
+      if (obj->m_fields_impl)
+        obj_describe(obj->m_fields_impl, recurse);
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+http_hdr_length_get(HTTPHdrImpl *hdr)
+{
+  int length = 0;
+
+  if (hdr->m_polarity == HTTP_TYPE_REQUEST) {
+    if (hdr->u.req.m_ptr_method) {
+      length = hdr->u.req.m_len_method;
+    } else {
+      length = 0;
+    }
+
+    length += 1;                // " "
+
+    if (hdr->u.req.m_url_impl) {
+      length += url_length_get(hdr->u.req.m_url_impl);
+    }
+
+    length += 1;                // " "
+
+    length += 8;                // HTTP/%d.%d
+
+    length += 2;                // "\r\n"
+  } else if (hdr->m_polarity == HTTP_TYPE_RESPONSE) {
+    if (hdr->u.resp.m_ptr_reason) {
+      length = hdr->u.resp.m_len_reason;
+    } else {
+      length = 0;
+
+    }
+
+    length += 8;                // HTTP/%d.%d
+
+    length += 1;                // " "
+
+    length += 3;                // status
+
+    length += 1;                // " "
+
+    length += 2;                // "\r\n"
+  }
+
+  length += mime_hdr_length_get(hdr->m_fields_impl);
+
+  return length;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_type_set(HTTPHdrImpl *hh, HTTPType type)
+{
+  hh->m_polarity = type;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_version_set(HTTPHdrImpl *hh, int32_t ver)
+{
+  hh->m_version = ver;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+http_hdr_method_get(HTTPHdrImpl *hh, int *length)
+{
+  const char *str;
+
+  ink_assert(hh->m_polarity == HTTP_TYPE_REQUEST);
+
+  if (hh->u.req.m_method_wks_idx >= 0) {
+    str = hdrtoken_index_to_wks(hh->u.req.m_method_wks_idx);
+    *length = hdrtoken_index_to_length(hh->u.req.m_method_wks_idx);
+  } else {
+    str = hh->u.req.m_ptr_method;
+    *length = hh->u.req.m_len_method;
+  }
+
+  return (str);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_method_set(HdrHeap *heap, HTTPHdrImpl *hh, const char *method, int16_t method_wks_idx, int method_length,
+                    bool must_copy)
+{
+  ink_assert(hh->m_polarity == HTTP_TYPE_REQUEST);
+
+  hh->u.req.m_method_wks_idx = method_wks_idx;
+  mime_str_u16_set(heap, method, method_length, &(hh->u.req.m_ptr_method), &(hh->u.req.m_len_method), must_copy);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_url_set(HdrHeap *heap, HTTPHdrImpl *hh, URLImpl *url)
+{
+  ink_assert(hh->m_polarity == HTTP_TYPE_REQUEST);
+  if (hh->u.req.m_url_impl != url) {
+    if (hh->u.req.m_url_impl != NULL) {
+      heap->deallocate_obj(hh->u.req.m_url_impl);
+    }
+    hh->u.req.m_url_impl = url;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_status_set(HTTPHdrImpl *hh, HTTPStatus status)
+{
+  ink_assert(hh->m_polarity == HTTP_TYPE_RESPONSE);
+  hh->u.resp.m_status = status;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+http_hdr_reason_get(HTTPHdrImpl *hh, int *length)
+{
+  ink_assert(hh->m_polarity == HTTP_TYPE_RESPONSE);
+  *length = hh->u.resp.m_len_reason;
+  return (hh->u.resp.m_ptr_reason);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+http_hdr_reason_set(HdrHeap *heap, HTTPHdrImpl *hh, const char *value, int length, bool must_copy)
+{
+  ink_assert(hh->m_polarity == HTTP_TYPE_RESPONSE);
+  mime_str_u16_set(heap, value, length, &(hh->u.resp.m_ptr_reason), &(hh->u.resp.m_len_reason), must_copy);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+http_hdr_reason_lookup(unsigned status)
+{
+#define HTTP_STATUS_ENTRY(value, reason) \
+    case value: return #reason
+
+  switch (status) {
+    HTTP_STATUS_ENTRY(0, None);                                       // TS_HTTP_STATUS_NONE
+    HTTP_STATUS_ENTRY(100, Continue);                                 // [RFC2616]
+    HTTP_STATUS_ENTRY(101, Switching Protocols);                      // [RFC2616]
+    HTTP_STATUS_ENTRY(102, Processing);                               // [RFC2518]
+    // 103-199 Unassigned
+    HTTP_STATUS_ENTRY(200, OK);                                       // [RFC2616]
+    HTTP_STATUS_ENTRY(201, Created);                                  // [RFC2616]
+    HTTP_STATUS_ENTRY(202, Accepted);                                 // [RFC2616]
+    HTTP_STATUS_ENTRY(203, Non-Authoritative Information);            // [RFC2616]
+    HTTP_STATUS_ENTRY(204, No Content);                               // [RFC2616]
+    HTTP_STATUS_ENTRY(205, Reset Content);                            // [RFC2616]
+    HTTP_STATUS_ENTRY(206, Partial Content);                          // [RFC2616]
+    HTTP_STATUS_ENTRY(207, Multi-Status);                             // [RFC4918]
+    HTTP_STATUS_ENTRY(208, Already Reported);                         // [RFC5842]
+    // 209-225 Unassigned
+    HTTP_STATUS_ENTRY(226, IM Used);                                  // [RFC3229]
+    // 227-299 Unassigned
+    HTTP_STATUS_ENTRY(300, Multiple Choices);                         // [RFC2616]
+    HTTP_STATUS_ENTRY(301, Moved Permanently);                        // [RFC2616]
+    HTTP_STATUS_ENTRY(302, Found);                                    // [RFC2616]
+    HTTP_STATUS_ENTRY(303, See Other);                                // [RFC2616]
+    HTTP_STATUS_ENTRY(304, Not Modified);                             // [RFC2616]
+    HTTP_STATUS_ENTRY(305, Use Proxy);                                // [RFC2616]
+    // 306 Reserved                                                   // [RFC2616]
+    HTTP_STATUS_ENTRY(307, Temporary Redirect);                       // [RFC2616]
+    HTTP_STATUS_ENTRY(308, Permanent Redirect);                       // [RFC-reschke-http-status-308-07]
+    // 309-399 Unassigned
+    HTTP_STATUS_ENTRY(400, Bad Request);                              // [RFC2616]
+    HTTP_STATUS_ENTRY(401, Unauthorized);                             // [RFC2616]
+    HTTP_STATUS_ENTRY(402, Payment Required);                         // [RFC2616]
+    HTTP_STATUS_ENTRY(403, Forbidden);                                // [RFC2616]
+    HTTP_STATUS_ENTRY(404, Not Found);                                // [RFC2616]
+    HTTP_STATUS_ENTRY(405, Method Not Allowed);                       // [RFC2616]
+    HTTP_STATUS_ENTRY(406, Not Acceptable);                           // [RFC2616]
+    HTTP_STATUS_ENTRY(407, Proxy Authentication Required);            // [RFC2616]
+    HTTP_STATUS_ENTRY(408, Request Timeout);                          // [RFC2616]
+    HTTP_STATUS_ENTRY(409, Conflict);                                 // [RFC2616]
+    HTTP_STATUS_ENTRY(410, Gone);                                     // [RFC2616]
+    HTTP_STATUS_ENTRY(411, Length Required);                          // [RFC2616]
+    HTTP_STATUS_ENTRY(412, Precondition Failed);                      // [RFC2616]
+    HTTP_STATUS_ENTRY(413, Request Entity Too Large);                 // [RFC2616]
+    HTTP_STATUS_ENTRY(414, Request-URI Too Long);                     // [RFC2616]
+    HTTP_STATUS_ENTRY(415, Unsupported Media Type);                   // [RFC2616]
+    HTTP_STATUS_ENTRY(416, Requested Range Not Satisfiable);          // [RFC2616]
+    HTTP_STATUS_ENTRY(417, Expectation Failed);                       // [RFC2616]
+    HTTP_STATUS_ENTRY(422, Unprocessable Entity);                     // [RFC4918]
+    HTTP_STATUS_ENTRY(423, Locked);                                   // [RFC4918]
+    HTTP_STATUS_ENTRY(424, Failed Dependency);                        // [RFC4918]
+    // 425 Reserved                                                   // [RFC2817]
+    HTTP_STATUS_ENTRY(426, Upgrade Required);                         // [RFC2817]
+    // 427 Unassigned
+    HTTP_STATUS_ENTRY(428, Precondition Required);                    // [RFC6585]
+    HTTP_STATUS_ENTRY(429, Too Many Requests);                        // [RFC6585]
+    // 430 Unassigned
+    HTTP_STATUS_ENTRY(431, Request Header Fields Too Large);          // [RFC6585]
+    // 432-499 Unassigned
+    HTTP_STATUS_ENTRY(500, Internal Server Error);                    // [RFC2616]
+    HTTP_STATUS_ENTRY(501, Not Implemented);                          // [RFC2616]
+    HTTP_STATUS_ENTRY(502, Bad Gateway);                              // [RFC2616]
+    HTTP_STATUS_ENTRY(503, Service Unavailable);                      // [RFC2616]
+    HTTP_STATUS_ENTRY(504, Gateway Timeout);                          // [RFC2616]
+    HTTP_STATUS_ENTRY(505, HTTP Version Not Supported);               // [RFC2616]
+    HTTP_STATUS_ENTRY(506, Variant Also Negotiates);                  // [RFC2295]
+    HTTP_STATUS_ENTRY(507, Insufficient Storage);                     // [RFC4918]
+    HTTP_STATUS_ENTRY(508, Loop Detected);                            // [RFC5842]
+    // 509 Unassigned
+    HTTP_STATUS_ENTRY(510, Not Extended);                             // [RFC2774]
+    HTTP_STATUS_ENTRY(511, Network Authentication Required);          // [RFC6585]
+    // 512-599 Unassigned
+  }
+
+#undef HTTP_STATUS_ENTRY
+
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+_http_parser_init(HTTPParser *parser)
+{
+  parser->m_parsing_http = true;
+}
+
+//////////////////////////////////////////////////////
+// init     first time structure setup              //
+// clear    resets an already-initialized structure //
+//////////////////////////////////////////////////////
+
+void
+http_parser_init(HTTPParser *parser)
+{
+  _http_parser_init(parser);
+  mime_parser_init(&parser->m_mime_parser);
+}
+
+void
+http_parser_clear(HTTPParser *parser)
+{
+  _http_parser_init(parser);
+  mime_parser_clear(&parser->m_mime_parser);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+#define GETNEXT(label) { \
+    cur += 1;            \
+    if (cur >= end) {    \
+        goto label;      \
+    }                    \
+}
+
+#define GETPREV(label) {    \
+    cur -= 1;               \
+    if (cur < line_start) { \
+        goto label;         \
+    }                       \
+}
+
+// NOTE: end is ONE CHARACTER PAST end of string!
+
+MIMEParseResult
+http_parser_parse_req(HTTPParser *parser, HdrHeap *heap, HTTPHdrImpl *hh, const char **start, const char *end,
+                      bool must_copy_strings, bool eof)
+{
+  if (parser->m_parsing_http) {
+    MIMEScanner *scanner = &parser->m_mime_parser.m_scanner;
+    URLImpl *url;
+
+    MIMEParseResult err;
+    bool line_is_real;
+    const char *cur;
+    const char *line_start;
+    const char *real_end;
+    const char *method_start;
+    const char *method_end;
+    const char *url_start;
+    const char *url_end;
+    const char *version_start;
+    const char *version_end;
+
+    real_end = end;
+
+  start:
+    hh->m_polarity = HTTP_TYPE_REQUEST;
+
+    // Make sure the line is not longer than 64K
+    if (scanner->m_line_length >= UINT16_MAX)
+      return PARSE_ERROR;
+
+    err = mime_scanner_get(scanner, start, real_end, &line_start, &end, &line_is_real, eof, MIME_SCANNER_TYPE_LINE);
+    if (err < 0)
+      return err;
+    // We have to get a request line.  If we get parse done here,
+    //   that meas we got an empty request
+    if (err == PARSE_DONE)
+      return PARSE_ERROR;
+    if (err == PARSE_CONT)
+      return err;
+
+    cur = line_start;
+    ink_assert((end - cur) >= 0);
+    ink_assert((end - cur) < UINT16_MAX);
+
+    must_copy_strings = (must_copy_strings || (!line_is_real));
+
+#if (ENABLE_PARSER_FAST_PATHS)
+    // first try fast path
+    if (end - cur >= 16) {
+      if (((cur[0] ^ 'G') | (cur[1] ^ 'E') | (cur[2] ^ 'T')) != 0)
+        goto slow_case;
+      if (((end[-10] ^ 'H') | (end[-9] ^ 'T') | (end[-8] ^ 'T') | (end[-7] ^ 'P') |
+           (end[-6] ^ '/') | (end[-4] ^ '.') | (end[-2] ^ '\r') | (end[-1] ^ '\n')) != 0)
+        goto slow_case;
+      if (!(is_digit(end[-5]) && is_digit(end[-3])))
+        goto slow_case;
+      if (!(ParseRules::is_space(cur[3]) && (!ParseRules::is_space(cur[4])) &&
+            (!ParseRules::is_space(end[-12])) && ParseRules::is_space(end[-11])))
+        goto slow_case;
+      if (&(cur[4]) >= &(end[-11]))
+        goto slow_case;
+
+      int32_t version = HTTP_VERSION(end[-5] - '0', end[-3] - '0');
+
+      http_hdr_method_set(heap, hh, &(cur[0]), hdrtoken_wks_to_index(HTTP_METHOD_GET), 3, must_copy_strings);
+      ink_assert(hh->u.req.m_url_impl != NULL);
+      url = hh->u.req.m_url_impl;
+      url_start = &(cur[4]);
+      err =::url_parse(heap, url, &url_start, &(end[-11]), must_copy_strings);
+      if (err < 0)
+        return err;
+      http_hdr_version_set(hh, version);
+
+      end = real_end;
+      parser->m_parsing_http = false;
+      if (version == HTTP_VERSION(0, 9))
+        return PARSE_DONE;
+
+      return mime_parser_parse(&parser->m_mime_parser, heap, hh->m_fields_impl, start, end, must_copy_strings, eof);
+    }
+#endif
+
+  slow_case:
+
+    method_start = NULL;
+    method_end = NULL;
+    url_start = NULL;
+    url_end = NULL;
+    version_start = NULL;
+    version_end = NULL;
+    url = NULL;
+
+    if (ParseRules::is_cr(*cur))
+      GETNEXT(done);
+    if (ParseRules::is_lf(*cur))
+      goto start;
+
+  parse_method1:
+    if (ParseRules::is_ws(*cur)) {
+      GETNEXT(done);
+      goto parse_method1;
+    }
+    method_start = cur;
+    GETNEXT(done);
+  parse_method2:
+    if (ParseRules::is_ws(*cur)) {
+      method_end = cur;
+      goto parse_version1;
+    }
+    GETNEXT(done);
+    goto parse_method2;
+
+  parse_version1:
+    cur = end - 1;
+    if (ParseRules::is_lf(*cur) && (cur >= line_start)) {
+      cur -= 1;
+    }
+    if (ParseRules::is_cr(*cur) && (cur >= line_start)) {
+      cur -= 1;
+    }
+    // A client may add extra white spaces after the HTTP version.
+    // So, skip white spaces.
+    while (ParseRules::is_ws(*cur) && (cur >= line_start)) {
+      cur -= 1;
+    }
+    version_end = cur + 1;
+  parse_version2:
+    if (ParseRules::is_digit(*cur)) {
+      GETPREV(parse_url);
+      goto parse_version2;
+    }
+    if (*cur == '.') {
+      GETPREV(parse_url);
+      goto parse_version3;
+    }
+    goto parse_url;
+  parse_version3:
+    if (ParseRules::is_digit(*cur)) {
+      GETPREV(parse_url);
+      goto parse_version3;
+    }
+    if (*cur == '/') {
+      GETPREV(parse_url);
+      goto parse_version4;
+    }
+    goto parse_url;
+  parse_version4:
+    if ((*cur != 'P') && (*cur != 'p')) {
+      goto parse_url;
+    }
+    GETPREV(parse_url);
+    if ((*cur != 'T') && (*cur != 't')) {
+      goto parse_url;
+    }
+    GETPREV(parse_url);
+    if ((*cur != 'T') && (*cur != 't')) {
+      goto parse_url;
+    }
+    GETPREV(parse_url);
+    if ((*cur != 'H') && (*cur != 'h')) {
+      goto parse_url;
+    }
+    version_start = cur;
+
+  parse_url:
+    url_start = method_end + 1;
+    if (version_start) {
+      url_end = version_start - 1;
+    } else {
+      url_end = end - 1;
+    }
+    while ((url_start < end) && ParseRules::is_ws(*url_start)) {
+      url_start += 1;
+    }
+    while ((url_end >= line_start) && ParseRules::is_wslfcr(*url_end)) {
+      url_end -= 1;
+    }
+    url_end += 1;
+
+  done:
+    if (!method_start || !method_end)
+      return PARSE_ERROR;
+
+    int method_wks_idx = hdrtoken_tokenize(method_start,
+                                           (int) (method_end - method_start));
+    http_hdr_method_set(heap, hh, method_start, method_wks_idx, (int) (method_end - method_start), must_copy_strings);
+
+    if (!url_start || !url_end)
+      return PARSE_ERROR;
+
+    ink_assert(hh->u.req.m_url_impl != NULL);
+
+    url = hh->u.req.m_url_impl;
+    err =::url_parse(heap, url, &url_start, url_end, must_copy_strings);
+
+    if (err < 0)
+      return err;
+
+    int32_t version;
+    if (version_start && version_end) {
+      version = http_parse_version(version_start, version_end);
+    } else
+      version = HTTP_VERSION(0, 9);
+    http_hdr_version_set(hh, version);
+
+    end = real_end;
+    parser->m_parsing_http = false;
+    if (version == HTTP_VERSION(0, 9))
+      return PARSE_DONE;
+  }
+
+  return mime_parser_parse(&parser->m_mime_parser, heap, hh->m_fields_impl, start, end, must_copy_strings, eof);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+MIMEParseResult
+http_parser_parse_resp(HTTPParser *parser, HdrHeap *heap, HTTPHdrImpl *hh, const char **start, const char *end,
+                       bool must_copy_strings, bool eof)
+{
+  if (parser->m_parsing_http) {
+    MIMEScanner *scanner = &parser->m_mime_parser.m_scanner;
+
+    MIMEParseResult err;
+    bool line_is_real;
+    const char *cur;
+    const char *line_start;
+    const char *real_end;
+    const char *version_start;
+    const char *version_end;
+    const char *status_start;
+    const char *status_end;
+    const char *reason_start;
+    const char *reason_end;
+    const char *old_start;
+
+    real_end = end;
+    old_start = *start;
+
+    hh->m_polarity = HTTP_TYPE_RESPONSE;
+
+    // Make sure the line is not longer than 64K
+    if (scanner->m_line_length >= UINT16_MAX)
+      return PARSE_ERROR;
+
+    err = mime_scanner_get(scanner, start, real_end, &line_start, &end, &line_is_real, eof, MIME_SCANNER_TYPE_LINE);
+    if (err < 0)
+      return err;
+    if ((err == PARSE_DONE) || (err == PARSE_CONT))
+      return err;
+
+    cur = line_start;
+    ink_assert((end - cur) >= 0);
+    ink_assert((end - cur) < UINT16_MAX);
+
+    must_copy_strings = (must_copy_strings || (!line_is_real));
+
+#if (ENABLE_PARSER_FAST_PATHS)
+    // first try fast path
+    if (end - cur >= 16) {
+      int http_match = ((cur[0] ^ 'H') | (cur[1] ^ 'T') | (cur[2] ^ 'T') | (cur[3] ^ 'P') |
+                        (cur[4] ^ '/') | (cur[6] ^ '.') | (cur[8] ^ ' '));
+      if ((http_match != 0) ||
+          (!(is_digit(cur[5]) && is_digit(cur[7]) &&
+             is_digit(cur[9]) && is_digit(cur[10]) && is_digit(cur[11]) && (!ParseRules::is_space(cur[13]))))) {
+        goto slow_case;
+      }
+
+      reason_start = &(cur[13]);
+      reason_end = end - 1;
+      while ((reason_end > reason_start + 1) && (ParseRules::is_space(reason_end[-1])))
+        --reason_end;
+
+      int32_t version = HTTP_VERSION(cur[5] - '0', cur[7] - '0');
+      HTTPStatus status = (HTTPStatus) ((cur[9] - '0') * 100 + (cur[10] - '0') * 10 + (cur[11] - '0'));
+
+      http_hdr_version_set(hh, version);
+      http_hdr_status_set(hh, status);
+      http_hdr_reason_set(heap, hh, reason_start, (int) (reason_end - reason_start), must_copy_strings);
+
+      end = real_end;
+      parser->m_parsing_http = false;
+      return mime_parser_parse(&parser->m_mime_parser, heap, hh->m_fields_impl, start, end, must_copy_strings, eof);
+    }
+#endif
+
+  slow_case:
+    version_start = NULL;
+    version_end = NULL;
+    status_start = NULL;
+    status_end = NULL;
+    reason_start = NULL;
+    reason_end = NULL;
+
+    version_start = cur = line_start;
+    if ((*cur != 'H') && (*cur != 'h')) {
+      goto eoh;
+    }
+    GETNEXT(eoh);
+    if ((*cur != 'T') && (*cur != 't')) {
+      goto eoh;
+    }
+    GETNEXT(eoh);
+    if ((*cur != 'T') && (*cur != 't')) {
+      goto eoh;
+    }
+    GETNEXT(eoh);
+    if ((*cur != 'P') && (*cur != 'p')) {
+      goto eoh;
+    }
+    GETNEXT(eoh);
+    if (*cur != '/') {
+      goto eoh;
+    }
+    GETNEXT(eoh);
+  parse_version2:
+    if (ParseRules::is_digit(*cur)) {
+      GETNEXT(eoh);
+      goto parse_version2;
+    }
+    if (*cur == '.') {
+      GETNEXT(eoh);
+      goto parse_version3;
+    }
+    goto eoh;
+  parse_version3:
+    if (ParseRules::is_digit(*cur)) {
+      GETNEXT(eoh);
+      goto parse_version3;
+    }
+    if (ParseRules::is_ws(*cur)) {
+      version_end = cur;
+      GETNEXT(eoh);
+      goto parse_status1;
+    }
+    goto eoh;
+
+  parse_status1:
+    if (ParseRules::is_ws(*cur)) {
+      GETNEXT(done);
+      goto parse_status1;
+    }
+    status_start = cur;
+  parse_status2:
+    status_end = cur;
+    if (ParseRules::is_digit(*cur)) {
+      GETNEXT(done);
+      goto parse_status2;
+    }
+    if (ParseRules::is_ws(*cur)) {
+      GETNEXT(done);
+      goto parse_reason1;
+    }
+    goto done;
+
+  parse_reason1:
+    if (ParseRules::is_ws(*cur)) {
+      GETNEXT(done);
+      goto parse_reason1;
+    }
+    reason_start = cur;
+    reason_end = end - 1;
+    while ((reason_end >= line_start) && (ParseRules::is_cr(*reason_end) || ParseRules::is_lf(*reason_end))) {
+      reason_end -= 1;
+    }
+    reason_end += 1;
+    goto done;
+
+  eoh:
+    *start = old_start;
+    return PARSE_DONE;
+
+  done:
+    if (!version_start || !version_end) {
+      return PARSE_DONE;
+    }
+
+    http_hdr_version_set(hh, http_parse_version(version_start, version_end));
+
+    if (status_start && status_end)
+      http_hdr_status_set(hh, http_parse_status(status_start, status_end));
+
+    if (reason_start && reason_end) {
+      http_hdr_reason_set(heap, hh, reason_start, (int) (reason_end - reason_start), must_copy_strings);
+    }
+
+    end = real_end;
+    parser->m_parsing_http = false;
+  }
+
+  return mime_parser_parse(&parser->m_mime_parser, heap, hh->m_fields_impl, start, end, must_copy_strings, eof);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+HTTPStatus
+http_parse_status(const char *start, const char *end)
+{
+  int status = 0;
+
+  while ((start != end) && ParseRules::is_space(*start)) {
+    start += 1;
+  }
+
+  while ((start != end) && ParseRules::is_digit(*start)) {
+    status = (status * 10) + (*start++ - '0');
+  }
+
+  return (HTTPStatus) status;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int32_t
+http_parse_version(const char *start, const char *end)
+{
+  int maj;
+  int min;
+
+  if ((end - start) < 8) {
+    return HTTP_VERSION(0, 9);
+  }
+
+  if (((start[0] == 'H') || (start[0] == 'h')) &&
+      ((start[1] == 'T') || (start[1] == 't')) &&
+      ((start[2] == 'T') || (start[2] == 't')) && ((start[3] == 'P') || (start[3] == 'p')) && (start[4] == '/')) {
+    start += 5;
+
+    maj = 0;
+    min = 0;
+
+    while ((start != end) && ParseRules::is_digit(*start)) {
+      maj = (maj * 10) + (*start - '0');
+      start += 1;
+    }
+
+    if (*start == '.') {
+      start += 1;
+    }
+
+    while ((start != end) && ParseRules::is_digit(*start)) {
+      min = (min * 10) + (*start - '0');
+      start += 1;
+    }
+
+    return HTTP_VERSION(maj, min);
+  }
+
+  return HTTP_VERSION(0, 9);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static char *
+http_str_store(Arena *arena, const char *str, int length)
+{
+  const char *wks;
+  int idx = hdrtoken_tokenize(str, length, &wks);
+  if (idx < 0) {
+    return arena->str_store(str, length);
+  } else {
+    return (char *) wks;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static void
+http_skip_ws(const char *&buf, int &len)
+{
+  while (len > 0 && *buf && ParseRules::is_ws(*buf)) {
+    buf += 1;
+    len -= 1;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static double
+http_parse_qvalue(const char *&buf, int &len)
+{
+  double val = 1.0;
+
+  if (*buf != ';') {
+    return val;
+  }
+
+  buf += 1;
+  len -= 1;
+
+  while (len > 0 && *buf) {
+    http_skip_ws(buf, len);
+
+    if (*buf == 'q') {
+      buf += 1;
+      len -= 1;
+      http_skip_ws(buf, len);
+
+      if (*buf == '=') {
+        double n;
+        int f;
+
+        buf += 1;
+        len -= 1;
+        http_skip_ws(buf, len);
+
+        n = 0.0;
+        while (len > 0 && *buf && ParseRules::is_digit(*buf)) {
+          n = (n * 10) + (*buf++ - '0');
+          len -= 1;
+        }
+
+        if (*buf == '.') {
+          buf += 1;
+          len -= 1;
+
+          f = 10;
+          while (len > 0 && *buf && ParseRules::is_digit(*buf)) {
+            n += (*buf++ - '0') / (double) f;
+            f *= 10;
+            len -= 1;
+          }
+        }
+
+        val = n;
+      }
+    } else {
+      // The current parameter is not a q-value, so go to the next param.
+      while (len > 0 && *buf) {
+        if (*buf != ';') {
+          buf += 1;
+          len -= 1;
+        } else {
+          // Move to the character after the semicolon.
+          buf += 1;
+          len -= 1;
+          break;
+        }
+      }
+    }
+  }
+
+  return val;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+
+/*-------------------------------------------------------------------------
+  TE        = "TE" ":" #( t-codings )
+  t-codings = "trailers" | ( transfer-extension [ accept-params ] )
+  -------------------------------------------------------------------------*/
+
+HTTPValTE *
+http_parse_te(const char *buf, int len, Arena *arena)
+{
+  HTTPValTE *val;
+  const char *s;
+
+  http_skip_ws(buf, len);
+
+  s = buf;
+
+  while (len > 0 && *buf && (*buf != ';')) {
+    buf += 1;
+    len -= 1;
+  }
+
+  val = (HTTPValTE *) arena->alloc(sizeof(HTTPValTE));
+  val->encoding = http_str_store(arena, s, (int) (buf - s));
+  val->qvalue = http_parse_qvalue(buf, len);
+
+  return val;
+}
+
+void
+HTTPHdr::_fill_target_cache() const
+{
+  URL* url = this->url_get();
+  char const* port_ptr;
+
+  m_target_in_url = false;
+  m_port_in_header = false;
+  m_host_mime = NULL;
+  // Check in the URL first, then the HOST field.
+  if (0 != url->host_get(&m_host_length)) {
+    m_target_in_url = true;
+    m_port = url->port_get();
+    m_port_in_header = 0 != url->port_get_raw();
+    m_host_mime = NULL;
+  } else if (0 != (m_host_mime = const_cast<HTTPHdr*>(this)->get_host_port_values(0, &m_host_length, &port_ptr, 0))) {
+    if (port_ptr) {
+      m_port = 0;
+      for ( ; is_digit(*port_ptr) ; ++port_ptr )
+        m_port = m_port * 10 + *port_ptr - '0';
+      m_port_in_header = (0 != m_port);
+    }
+    m_port = url_canonicalize_port(url->m_url_impl->m_url_type, m_port);
+  }
+
+  m_target_cached = true;
+}
+
+void
+HTTPHdr::set_url_target_from_host_field(URL* url) {
+  this->_test_and_fill_target_cache();
+
+  if (!url) {
+    // Use local cached URL and don't copy if the target
+    // is already there.
+    if (!m_target_in_url && m_host_mime && m_host_length) {
+      m_url_cached.host_set(m_host_mime->m_ptr_value, m_host_length);
+      if (m_port_in_header) m_url_cached.port_set(m_port);
+      m_target_in_url = true; // it's there now.
+    }
+  } else {
+    int host_len = 0;
+    char const *host = NULL;
+    host = host_get(&host_len);
+    url->host_set(host, host_len);
+    if (m_port_in_header) url->port_set(m_port);
+  }
+}
+
+// Very ugly, but a proper implementation will require
+// rewriting the URL class and all of its clients so that
+// clients access the URL through the HTTP header instance
+// unless they really need low level access. The header would
+// need to either keep two versions of the URL (pristine
+// and effective) or URl would have to provide access to
+// the URL printer.
+
+/// Hack the URL in the HTTP header to be 1.0 compliant, saving the
+/// original values so they can be restored.
+class UrlPrintHack {
+  friend class HTTPHdr;
+  UrlPrintHack(HTTPHdr* hdr) {
+    hdr->_test_and_fill_target_cache();
+    if (hdr->m_url_cached.valid()) {
+      URLImpl* ui = hdr->m_url_cached.m_url_impl;
+      char port_buff[10];
+
+      m_hdr = hdr; // mark as potentially having modified values.
+
+      /* Get dirty. We reach in to the URL implementation to
+         set the host and port if
+         1) They are not already set
+         AND
+         2) The values were in a HTTP header.
+      */
+      if (!hdr->m_target_in_url && hdr->m_host_length && hdr->m_host_mime) {
+        ink_assert(0 == ui->m_ptr_host); // shouldn't be non-zero if not in URL.
+        ui->m_ptr_host = hdr->m_host_mime->m_ptr_value;
+        ui->m_len_host = hdr->m_host_length;
+        m_host_modified_p = true;
+      } else {
+        m_host_modified_p = false;
+      }
+
+      if (0 == hdr->m_url_cached.port_get_raw() && hdr->m_port_in_header) {
+        ink_assert(0 == ui->m_ptr_port); // shouldn't be set if not in URL.
+        ui->m_ptr_port = port_buff;
+        ui->m_len_port = sprintf(port_buff, "%.5d", hdr->m_port);
+        m_port_modified_p = true;
+      } else {
+        m_port_modified_p = false;
+      }
+    } else {
+      m_hdr = 0;
+    }
+  }
+
+  /// Destructor.
+  ~UrlPrintHack() {
+    if (m_hdr) { // There was a potentially modified header.
+      URLImpl* ui = m_hdr->m_url_cached.m_url_impl;
+      // Because we only modified if not set, we can just set these values
+      // back to zero if modified. We want to be careful because if a
+      // heap re-allocation happened while this was active, then a saved value
+      // is wrong and will break things if restored. We don't have to worry
+      // about these because, if modified, they were originally NULL and should
+      // still be NULL after a re-allocate.
+      if (m_port_modified_p) {
+        ui->m_len_port = 0;
+        ui->m_ptr_port = 0;
+      }
+      if (m_host_modified_p) {
+        ui->m_len_host = 0;
+        ui->m_ptr_host = 0;
+      }
+    }
+  }
+
+  /// Check if the hack worked
+  bool is_valid() const {
+    return 0 != m_hdr;
+  }
+   
+  /// Saved values.
+  ///@{
+  bool m_host_modified_p;
+  bool m_port_modified_p;
+  HTTPHdr* m_hdr;
+  ///@}
+};
+
+char*
+HTTPHdr::url_string_get(Arena* arena, int* length)
+{
+  char* zret = 0;
+  UrlPrintHack hack(this);
+
+  if (hack.is_valid()) {
+    // The use of a magic value for Arena to indicate the internal heap is
+    // even uglier but it's less so than duplicating this entire method to
+    // change that one thing.
+
+    zret = (arena == USE_HDR_HEAP_MAGIC)
+      ? m_url_cached.string_get_ref(length)
+      : m_url_cached.string_get(arena, length)
+      ;
+  }
+  return zret;
+}
+
+int
+HTTPHdr::url_print(char* buff, int length, int* offset, int* skip)
+{
+  ink_release_assert(offset);
+  ink_release_assert(skip);
+
+  int zret = 0;
+  UrlPrintHack hack(this);
+  if (hack.is_valid()) {
+    zret = m_url_cached.print(buff, length, offset, skip);
+  }
+  return zret;
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                        M A R S H A L I N G                          *
+ *                                                                     *
+ ***********************************************************************/
+
+int
+HTTPHdr::unmarshal(char *buf, int len, RefCountObj *block_ref)
+{
+  m_heap = (HdrHeap *)buf;
+
+  int res = m_heap->unmarshal(len, HDR_HEAP_OBJ_HTTP_HEADER, (HdrHeapObjImpl **) & m_http, block_ref);
+
+  if (res > 0) {
+    m_mime = m_http->m_fields_impl;
+  } else {
+    clear();
+  }
+
+  return res;
+}
+
+int
+HTTPHdrImpl::marshal(MarshalXlate *ptr_xlate, int num_ptr, MarshalXlate *str_xlate, int num_str)
+{
+
+  if (m_polarity == HTTP_TYPE_REQUEST) {
+    HDR_MARSHAL_STR(u.req.m_ptr_method, str_xlate, num_str);
+    HDR_MARSHAL_PTR(u.req.m_url_impl, URLImpl, ptr_xlate, num_ptr);
+  } else if (m_polarity == HTTP_TYPE_RESPONSE) {
+    HDR_MARSHAL_STR(u.resp.m_ptr_reason, str_xlate, num_str);
+  } else {
+    ink_release_assert(!"unknown m_polarity");
+  }
+
+  HDR_MARSHAL_PTR(m_fields_impl, MIMEHdrImpl, ptr_xlate, num_ptr);
+
+  return 0;
+}
+
+
+void
+HTTPHdrImpl::unmarshal(intptr_t offset)
+{
+
+  if (m_polarity == HTTP_TYPE_REQUEST) {
+    HDR_UNMARSHAL_STR(u.req.m_ptr_method, offset);
+    HDR_UNMARSHAL_PTR(u.req.m_url_impl, URLImpl, offset);
+  } else if (m_polarity == HTTP_TYPE_RESPONSE) {
+    HDR_UNMARSHAL_STR(u.resp.m_ptr_reason, offset);
+  } else {
+    ink_release_assert(!"unknown m_polarity");
+  }
+
+  HDR_UNMARSHAL_PTR(m_fields_impl, MIMEHdrImpl, offset);
+}
+
+
+void
+HTTPHdrImpl::move_strings(HdrStrHeap *new_heap)
+{
+  if (m_polarity == HTTP_TYPE_REQUEST) {
+    HDR_MOVE_STR(u.req.m_ptr_method, u.req.m_len_method);
+  } else if (m_polarity == HTTP_TYPE_RESPONSE) {
+    HDR_MOVE_STR(u.resp.m_ptr_reason, u.resp.m_len_reason);
+  } else {
+    ink_release_assert(!"unknown m_polarity");
+  }
+}
+
+size_t
+HTTPHdrImpl::strings_length()
+{
+  size_t ret = 0;
+
+  if (m_polarity == HTTP_TYPE_REQUEST) {
+   ret += u.req.m_len_method;
+  } else if (m_polarity == HTTP_TYPE_RESPONSE) {
+   ret += u.resp.m_len_reason;
+  }
+  return ret;
+}
+
+void
+HTTPHdrImpl::check_strings(HeapCheck *heaps, int num_heaps)
+{
+
+  if (m_polarity == HTTP_TYPE_REQUEST) {
+    CHECK_STR(u.req.m_ptr_method, u.req.m_len_method, heaps, num_heaps);
+  } else if (m_polarity == HTTP_TYPE_RESPONSE) {
+    CHECK_STR(u.resp.m_ptr_reason, u.resp.m_len_reason, heaps, num_heaps);
+  } else {
+    ink_release_assert(!"unknown m_polarity");
+  }
+}
+
+ClassAllocator<HTTPCacheAlt> httpCacheAltAllocator("httpCacheAltAllocator");
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+HTTPCacheAlt::HTTPCacheAlt():
+m_magic(CACHE_ALT_MAGIC_ALIVE), m_writeable(1),
+m_unmarshal_len(-1),
+m_id(-1), m_rid(-1), m_request_hdr(),
+m_response_hdr(), m_request_sent_time(0), m_response_received_time(0),
+m_frag_offset_count(0), m_frag_offsets(0),
+m_ext_buffer(NULL)
+{
+
+  m_object_key[0] = 0;
+  m_object_key[1] = 0;
+  m_object_key[2] = 0;
+  m_object_key[3] = 0;
+  m_object_size[0] = 0;
+  m_object_size[1] = 0;
+}
+
+void
+HTTPCacheAlt::destroy()
+{
+  ink_assert(m_magic == CACHE_ALT_MAGIC_ALIVE);
+  ink_assert(m_writeable);
+  m_magic = CACHE_ALT_MAGIC_DEAD;
+  m_writeable = 0;
+  m_request_hdr.destroy();
+  m_response_hdr.destroy();
+  m_frag_offset_count = 0;
+  if (m_frag_offsets && m_frag_offsets != m_integral_frag_offsets) {
+    ats_free(m_frag_offsets);
+    m_frag_offsets = 0;
+  }
+  httpCacheAltAllocator.free(this);
+}
+
+void
+HTTPCacheAlt::copy(HTTPCacheAlt *to_copy)
+{
+
+  m_magic = to_copy->m_magic;
+  // m_writeable =      to_copy->m_writeable;
+  m_unmarshal_len = to_copy->m_unmarshal_len;
+  m_id = to_copy->m_id;
+  m_rid = to_copy->m_rid;
+  m_object_key[0] = to_copy->m_object_key[0];
+  m_object_key[1] = to_copy->m_object_key[1];
+  m_object_key[2] = to_copy->m_object_key[2];
+  m_object_key[3] = to_copy->m_object_key[3];
+  m_object_size[0] = to_copy->m_object_size[0];
+  m_object_size[1] = to_copy->m_object_size[1];
+
+  if (to_copy->m_request_hdr.valid()) {
+    m_request_hdr.copy(&to_copy->m_request_hdr);
+  }
+
+  if (to_copy->m_response_hdr.valid()) {
+    m_response_hdr.copy(&to_copy->m_response_hdr);
+  }
+
+  m_request_sent_time = to_copy->m_request_sent_time;
+  m_response_received_time = to_copy->m_response_received_time;
+  this->copy_frag_offsets_from(to_copy);
+}
+
+void
+HTTPCacheAlt::copy_frag_offsets_from(HTTPCacheAlt *src)
+{
+  m_frag_offset_count = src->m_frag_offset_count;
+  if (m_frag_offset_count > 0) {
+    if (m_frag_offset_count > N_INTEGRAL_FRAG_OFFSETS) {
+      /* Mixed feelings about this - technically we don't need it to be a
+         power of two when copied because currently that means it is frozen.
+         But that could change later and it would be a nasty bug to find.
+         So we'll do it for now. The relative overhead is tiny.
+      */
+      int bcount = HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS * 2;
+      while (bcount < m_frag_offset_count) bcount *= 2;
+      m_frag_offsets = static_cast<FragOffset*>(ats_malloc(sizeof(FragOffset) * bcount));
+    } else {
+      m_frag_offsets = m_integral_frag_offsets;
+    }
+    memcpy(m_frag_offsets, src->m_frag_offsets, sizeof(FragOffset) * m_frag_offset_count);
+  }
+}
+
+const int HTTP_ALT_MARSHAL_SIZE = ROUND(sizeof(HTTPCacheAlt), HDR_PTR_SIZE);
+
+void
+HTTPInfo::create()
+{
+  m_alt = httpCacheAltAllocator.alloc();
+}
+
+void
+HTTPInfo::copy(HTTPInfo *hi)
+{
+
+  if (m_alt && m_alt->m_writeable) {
+    destroy();
+  }
+
+  create();
+  m_alt->copy(hi->m_alt);
+}
+
+void
+HTTPInfo::copy_frag_offsets_from(HTTPInfo* src) {
+  if (m_alt && src->m_alt)
+    m_alt->copy_frag_offsets_from(src->m_alt);
+}
+
+
+int
+HTTPInfo::marshal_length()
+{
+  int len = HTTP_ALT_MARSHAL_SIZE;
+
+  if (m_alt->m_request_hdr.valid()) {
+    len += m_alt->m_request_hdr.m_heap->marshal_length();
+  }
+
+  if (m_alt->m_response_hdr.valid()) {
+    len += m_alt->m_response_hdr.m_heap->marshal_length();
+  }
+
+  if (m_alt->m_frag_offset_count > HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS) {
+    len -= sizeof(m_alt->m_integral_frag_offsets);
+    len += sizeof(FragOffset) * m_alt->m_frag_offset_count;
+  }
+
+  return len;
+}
+
+int
+HTTPInfo::marshal(char *buf, int len)
+{
+  int tmp;
+  int used = 0;
+  HTTPCacheAlt *marshal_alt = (HTTPCacheAlt *) buf;
+  // non-zero only if the offsets are external. Otherwise they get
+  // marshalled along with the alt struct.
+  int frag_len = (0 == m_alt->m_frag_offset_count || m_alt->m_frag_offsets == m_alt->m_integral_frag_offsets) ? 0 : sizeof(HTTPCacheAlt::FragOffset) * m_alt->m_frag_offset_count;
+
+  ink_assert(m_alt->m_magic == CACHE_ALT_MAGIC_ALIVE);
+
+  // Make sure the buffer is aligned
+//    ink_assert(((intptr_t)buf) & 0x3 == 0);
+
+  // If we have external fragment offsets, copy the initial ones
+  // into the integral data.
+  if (frag_len) {
+    memcpy(m_alt->m_integral_frag_offsets, m_alt->m_frag_offsets, sizeof(m_alt->m_integral_frag_offsets));
+    frag_len -= sizeof(m_alt->m_integral_frag_offsets);
+    // frag_len should never be non-zero at this point, as the offsets
+    // should be external only if too big for the internal table.
+  }
+  // Memcpy the whole object so that we can use it
+  //   live later.  This involves copying a few
+  //   extra bytes now but will save copying any
+  //   bytes on the way out of the cache
+  memcpy(buf, m_alt, sizeof(HTTPCacheAlt));
+  marshal_alt->m_magic = CACHE_ALT_MAGIC_MARSHALED;
+  marshal_alt->m_writeable = 0;
+  marshal_alt->m_unmarshal_len = -1;
+  marshal_alt->m_ext_buffer = NULL;
+  buf += HTTP_ALT_MARSHAL_SIZE;
+  used += HTTP_ALT_MARSHAL_SIZE;
+
+  if (frag_len > 0) {
+    marshal_alt->m_frag_offsets = static_cast<FragOffset*>(reinterpret_cast<void*>(used));
+    memcpy(buf, m_alt->m_frag_offsets + HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS, frag_len);
+    buf += frag_len;
+    used += frag_len;
+  } else {
+    marshal_alt->m_frag_offsets = 0;
+  }
+
+  // The m_{request,response}_hdr->m_heap pointers are converted
+  //    to zero based offsets from the start of the buffer we're
+  //    marshalling in to
+  if (m_alt->m_request_hdr.valid()) {
+    tmp = m_alt->m_request_hdr.m_heap->marshal(buf, len - used);
+    marshal_alt->m_request_hdr.m_heap = (HdrHeap *)(intptr_t)used;
+    ink_assert(((intptr_t) marshal_alt->m_request_hdr.m_heap) < len);
+    buf += tmp;
+    used += tmp;
+  } else {
+    marshal_alt->m_request_hdr.m_heap = NULL;
+  }
+
+  if (m_alt->m_response_hdr.valid()) {
+    tmp = m_alt->m_response_hdr.m_heap->marshal(buf, len - used);
+    marshal_alt->m_response_hdr.m_heap = (HdrHeap *)(intptr_t)used;
+    ink_assert(((intptr_t) marshal_alt->m_response_hdr.m_heap) < len);
+    used += tmp;
+  } else {
+    marshal_alt->m_response_hdr.m_heap = NULL;
+  }
+
+  // The prior system failed the marshal if there wasn't
+  //   enough space by measuring the space for every
+  //   component. Seems much faster to check once to
+  //   see if we spammed memory
+  ink_release_assert(used <= len);
+
+  return used;
+}
+
+int
+HTTPInfo::unmarshal(char *buf, int len, RefCountObj *block_ref)
+{
+  HTTPCacheAlt *alt = (HTTPCacheAlt *) buf;
+  int orig_len = len;
+
+  if (alt->m_magic == CACHE_ALT_MAGIC_ALIVE) {
+    // Already unmarshaled, must be a ram cache
+    //  it
+    ink_assert(alt->m_unmarshal_len > 0);
+    ink_assert(alt->m_unmarshal_len <= len);
+    return alt->m_unmarshal_len;
+  } else if (alt->m_magic != CACHE_ALT_MAGIC_MARSHALED) {
+    ink_assert(!"HTTPInfo::unmarshal bad magic");
+    return -1;
+  }
+
+  ink_assert(alt->m_unmarshal_len < 0);
+  alt->m_magic = CACHE_ALT_MAGIC_ALIVE;
+  ink_assert(alt->m_writeable == 0);
+  len -= HTTP_ALT_MARSHAL_SIZE;
+
+  if (alt->m_frag_offset_count > HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS) {
+    // stuff that didn't fit in the integral slots.
+    int extra = sizeof(FragOffset) * alt->m_frag_offset_count - sizeof(alt->m_integral_frag_offsets);
+    char* extra_src = buf + reinterpret_cast<intptr_t>(alt->m_frag_offsets);
+    // Actual buffer size, which must be a power of two.
+    // Well, technically not, because we never modify an unmarshalled fragment
+    // offset table, but it would be a nasty bug should that be done in the
+    // future.
+    int bcount = HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS * 2;
+
+    while (bcount < alt->m_frag_offset_count) bcount *= 2;
+    alt->m_frag_offsets = static_cast<FragOffset*>(ats_malloc(bcount * sizeof(FragOffset))); // WRONG - must round up to next power of 2.
+    memcpy(alt->m_frag_offsets, alt->m_integral_frag_offsets, sizeof(alt->m_integral_frag_offsets));
+    memcpy(alt->m_frag_offsets + HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS, extra_src, extra);
+    len -= extra;
+  } else if (alt->m_frag_offset_count > 0) {
+    alt->m_frag_offsets = alt->m_integral_frag_offsets;
+  } else {
+    alt->m_frag_offsets = 0; // should really already be zero.
+  }
+
+  HdrHeap *heap = (HdrHeap *) (alt->m_request_hdr.m_heap ? (buf + (intptr_t) alt->m_request_hdr.m_heap) : 0);
+  HTTPHdrImpl *hh = NULL;
+  int tmp;
+  if (heap != NULL) {
+
+    tmp = heap->unmarshal(len, HDR_HEAP_OBJ_HTTP_HEADER, (HdrHeapObjImpl **) & hh, block_ref);
+    if (hh == NULL || tmp < 0) {
+      ink_assert(!"HTTPInfo::request unmarshal failed");
+      return -1;
+    }
+    len -= tmp;
+    alt->m_request_hdr.m_heap = heap;
+    alt->m_request_hdr.m_http = hh;
+    alt->m_request_hdr.m_mime = hh->m_fields_impl;
+    alt->m_request_hdr.m_url_cached.m_heap = heap;
+  }
+
+  heap = (HdrHeap *) (alt->m_response_hdr.m_heap ? (buf + (intptr_t) alt->m_response_hdr.m_heap) : 0);
+  if (heap != NULL) {
+    tmp = heap->unmarshal(len, HDR_HEAP_OBJ_HTTP_HEADER, (HdrHeapObjImpl **) & hh, block_ref);
+    if (hh == NULL || tmp < 0) {
+      ink_assert(!"HTTPInfo::response unmarshal failed");
+      return -1;
+    }
+    len -= tmp;
+
+    alt->m_response_hdr.m_heap = heap;
+    alt->m_response_hdr.m_http = hh;
+    alt->m_response_hdr.m_mime = hh->m_fields_impl;
+  }
+
+  alt->m_unmarshal_len = orig_len - len;
+
+  return alt->m_unmarshal_len;
+}
+
+// bool HTTPInfo::check_marshalled(char* buf, int len)
+//  Checks a marhshalled HTTPInfo buffer to make
+//    sure it's sane.  Returns true if sane, false otherwise
+//
+bool
+HTTPInfo::check_marshalled(char *buf, int len)
+{
+  HTTPCacheAlt *alt = (HTTPCacheAlt *) buf;
+
+  if (alt->m_magic != CACHE_ALT_MAGIC_MARSHALED) {
+    return false;
+  }
+
+  if (alt->m_writeable != false) {
+    return false;
+  }
+
+  if (len < HTTP_ALT_MARSHAL_SIZE) {
+    return false;
+  }
+
+  if (alt->m_request_hdr.m_heap == NULL) {
+    return false;
+  }
+
+  if ((intptr_t) alt->m_request_hdr.m_heap > len) {
+    return false;
+  }
+
+  HdrHeap *heap = (HdrHeap *) (buf + (intptr_t) alt->m_request_hdr.m_heap);
+  if (heap->check_marshalled(len) == false) {
+    return false;
+  }
+
+  if (alt->m_response_hdr.m_heap == NULL) {
+    return false;
+  }
+
+  if ((intptr_t) alt->m_response_hdr.m_heap > len) {
+    return false;
+  }
+
+  heap = (HdrHeap *) (buf + (intptr_t) alt->m_response_hdr.m_heap);
+  if (heap->check_marshalled(len) == false) {
+    return false;
+  }
+
+  return true;
+}
+
+
+// void HTTPInfo::set_buffer_reference(RefCountObj* block_ref)
+//
+//    Setting a buffer reference for the alt is separate from
+//     the unmarshalling operation because the clustering
+//     utilizes the system differently than cache does
+//    The cache maintains external refcounting of the buffer that
+//     the alt is in & doesn't always destroy the alt when its
+//     done with it because it figures it doesn't need to since
+//     it is managing the buffer
+//    The receiver of ClusterRPC system has the alt manage the
+//     buffer itself and therefore needs to call this function
+//     to set up the reference
+//
+void
+HTTPInfo::set_buffer_reference(RefCountObj *block_ref)
+{
+  ink_assert(m_alt->m_magic == CACHE_ALT_MAGIC_ALIVE);
+
+  // Free existing reference
+  if (m_alt->m_ext_buffer != NULL) {
+    if (m_alt->m_ext_buffer->refcount_dec() == 0) {
+      m_alt->m_ext_buffer->free();
+    }
+  }
+  // Set up the ref count for the external buffer
+  //   if there is one
+  if (block_ref) {
+    block_ref->refcount_inc();
+  }
+
+  m_alt->m_ext_buffer = block_ref;
+}
+
+int
+HTTPInfo::get_handle(char *buf, int len)
+{
+
+  // All the offsets have already swizzled to pointers.  All we
+  //  need to do is set m_alt and make sure things are sane
+  HTTPCacheAlt *a = (HTTPCacheAlt *) buf;
+
+  if (a->m_magic == CACHE_ALT_MAGIC_ALIVE) {
+    m_alt = a;
+    ink_assert(m_alt->m_unmarshal_len > 0);
+    ink_assert(m_alt->m_unmarshal_len <= len);
+    return m_alt->m_unmarshal_len;
+  }
+
+  clear();
+  return -1;
+}
+
+void
+HTTPInfo::push_frag_offset(FragOffset offset) {
+  ink_assert(m_alt);
+  if (0 == m_alt->m_frag_offsets) {
+    m_alt->m_frag_offsets = m_alt->m_integral_frag_offsets;
+  } else if (m_alt->m_frag_offset_count >= HTTPCacheAlt::N_INTEGRAL_FRAG_OFFSETS && 0 == (m_alt->m_frag_offset_count & (m_alt->m_frag_offset_count-1))) {
+    // need more space than in integral storage and we're at an upgrade
+    // size (power of 2).
+    FragOffset* nf = static_cast<FragOffset*>(ats_malloc(sizeof(FragOffset) * (m_alt->m_frag_offset_count * 2)));
+    memcpy(nf, m_alt->m_frag_offsets, sizeof(FragOffset) * m_alt->m_frag_offset_count);
+    if (m_alt->m_frag_offsets != m_alt->m_integral_frag_offsets)
+      ats_free(m_alt->m_frag_offsets);
+    m_alt->m_frag_offsets = nf;
+  }
+
+  m_alt->m_frag_offsets[m_alt->m_frag_offset_count++] = offset;
+}
diff --git a/proxy/hdrs/HTTP.h b/proxy/hdrs/HTTP.h
new file mode 100644
index 00000000..16051656
--- /dev/null
+++ b/proxy/hdrs/HTTP.h
@@ -0,0 +1,1525 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __HTTP_H__
+#define __HTTP_H__
+
+
+#include <assert.h>
+#include "Arena.h"
+#include "INK_MD5.h"
+#include "MIME.h"
+#include "URL.h"
+
+#include "ink_apidefs.h"
+
+#define HTTP_VERSION(a,b)  ((((a) & 0xFFFF) << 16) | ((b) & 0xFFFF))
+#define HTTP_MINOR(v)      ((v) & 0xFFFF)
+#define HTTP_MAJOR(v)      (((v) >> 16) & 0xFFFF)
+
+
+enum HTTPStatus
+{
+  HTTP_STATUS_NONE = 0,
+
+  HTTP_STATUS_CONTINUE = 100,
+  HTTP_STATUS_SWITCHING_PROTOCOL = 101,
+
+  HTTP_STATUS_OK = 200,
+  HTTP_STATUS_CREATED = 201,
+  HTTP_STATUS_ACCEPTED = 202,
+  HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
+  HTTP_STATUS_NO_CONTENT = 204,
+  HTTP_STATUS_RESET_CONTENT = 205,
+  HTTP_STATUS_PARTIAL_CONTENT = 206,
+
+  HTTP_STATUS_MULTIPLE_CHOICES = 300,
+  HTTP_STATUS_MOVED_PERMANENTLY = 301,
+  HTTP_STATUS_MOVED_TEMPORARILY = 302,
+  HTTP_STATUS_SEE_OTHER = 303,
+  HTTP_STATUS_NOT_MODIFIED = 304,
+  HTTP_STATUS_USE_PROXY = 305,
+  HTTP_STATUS_TEMPORARY_REDIRECT = 307,
+
+  HTTP_STATUS_BAD_REQUEST = 400,
+  HTTP_STATUS_UNAUTHORIZED = 401,
+  HTTP_STATUS_PAYMENT_REQUIRED = 402,
+  HTTP_STATUS_FORBIDDEN = 403,
+  HTTP_STATUS_NOT_FOUND = 404,
+  HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
+  HTTP_STATUS_NOT_ACCEPTABLE = 406,
+  HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
+  HTTP_STATUS_REQUEST_TIMEOUT = 408,
+  HTTP_STATUS_CONFLICT = 409,
+  HTTP_STATUS_GONE = 410,
+  HTTP_STATUS_LENGTH_REQUIRED = 411,
+  HTTP_STATUS_PRECONDITION_FAILED = 412,
+  HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
+  HTTP_STATUS_REQUEST_URI_TOO_LONG = 414,
+  HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
+  HTTP_STATUS_RANGE_NOT_SATISFIABLE = 416,
+
+  HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
+  HTTP_STATUS_NOT_IMPLEMENTED = 501,
+  HTTP_STATUS_BAD_GATEWAY = 502,
+  HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
+  HTTP_STATUS_GATEWAY_TIMEOUT = 504,
+  HTTP_STATUS_HTTPVER_NOT_SUPPORTED = 505
+};
+
+enum HTTPKeepAlive
+{
+  HTTP_KEEPALIVE_UNDEFINED = 0,
+  HTTP_NO_KEEPALIVE,
+  HTTP_KEEPALIVE
+};
+
+enum HTTPWarningCode
+{
+  HTTP_WARNING_CODE_NONE = 0,
+
+  HTTP_WARNING_CODE_RESPONSE_STALE = 110,
+  HTTP_WARNING_CODE_REVALIDATION_FAILED = 111,
+  HTTP_WARNING_CODE_DISCONNECTED_OPERATION = 112,
+  HTTP_WARNING_CODE_HERUISTIC_EXPIRATION = 113,
+  HTTP_WARNING_CODE_TRANSFORMATION_APPLIED = 114,
+  HTTP_WARNING_CODE_MISC_WARNING = 199
+};
+
+/* squild log codes */
+enum SquidLogCode
+{
+  SQUID_LOG_EMPTY = '0',
+  SQUID_LOG_TCP_HIT = '1',
+  SQUID_LOG_TCP_DISK_HIT = '2',
+  SQUID_LOG_TCP_MEM_HIT = '.',  // Don't want to change others codes
+  SQUID_LOG_TCP_MISS = '3',
+  SQUID_LOG_TCP_EXPIRED_MISS = '4',
+  SQUID_LOG_TCP_REFRESH_HIT = '5',
+  SQUID_LOG_TCP_REF_FAIL_HIT = '6',
+  SQUID_LOG_TCP_REFRESH_MISS = '7',
+  SQUID_LOG_TCP_CLIENT_REFRESH = '8',
+  SQUID_LOG_TCP_IMS_HIT = '9',
+  SQUID_LOG_TCP_IMS_MISS = 'a',
+  SQUID_LOG_TCP_SWAPFAIL = 'b',
+  SQUID_LOG_TCP_DENIED = 'c',
+  SQUID_LOG_TCP_WEBFETCH_MISS = 'd',
+  SQUID_LOG_TCP_FUTURE_2 = 'f',
+  SQUID_LOG_TCP_HIT_REDIRECT = '[',       // standard redirect
+  SQUID_LOG_TCP_MISS_REDIRECT = ']',      // standard redirect
+  SQUID_LOG_TCP_HIT_X_REDIRECT = '<',     // extended redirect
+  SQUID_LOG_TCP_MISS_X_REDIRECT = '>',    // extended redirect
+  SQUID_LOG_UDP_HIT = 'g',
+  SQUID_LOG_UDP_WEAK_HIT = 'h',
+  SQUID_LOG_UDP_HIT_OBJ = 'i',
+  SQUID_LOG_UDP_MISS = 'j',
+  SQUID_LOG_UDP_DENIED = 'k',
+  SQUID_LOG_UDP_INVALID = 'l',
+  SQUID_LOG_UDP_RELOADING = 'm',
+  SQUID_LOG_UDP_FUTURE_1 = 'n',
+  SQUID_LOG_UDP_FUTURE_2 = 'o',
+  SQUID_LOG_ERR_READ_TIMEOUT = 'p',
+  SQUID_LOG_ERR_LIFETIME_EXP = 'q',
+  SQUID_LOG_ERR_NO_CLIENTS_BIG_OBJ = 'r',
+  SQUID_LOG_ERR_READ_ERROR = 's',
+  SQUID_LOG_ERR_CLIENT_ABORT = 't',
+  SQUID_LOG_ERR_CONNECT_FAIL = 'u',
+  SQUID_LOG_ERR_INVALID_REQ = 'v',
+  SQUID_LOG_ERR_UNSUP_REQ = 'w',
+  SQUID_LOG_ERR_INVALID_URL = 'x',
+  SQUID_LOG_ERR_NO_FDS = 'y',
+  SQUID_LOG_ERR_DNS_FAIL = 'z',
+  SQUID_LOG_ERR_NOT_IMPLEMENTED = 'A',
+  SQUID_LOG_ERR_CANNOT_FETCH = 'B',
+  SQUID_LOG_ERR_NO_RELAY = 'C',
+  SQUID_LOG_ERR_DISK_IO = 'D',
+  SQUID_LOG_ERR_ZERO_SIZE_OBJECT = 'E',
+  SQUID_LOG_ERR_PROXY_DENIED = 'G',
+  SQUID_LOG_ERR_WEBFETCH_DETECTED = 'H',
+  SQUID_LOG_ERR_FUTURE_1 = 'I',
+  SQUID_LOG_ERR_UNKNOWN = 'Z'
+};
+
+/* squid hieratchy codes */
+enum SquidHierarchyCode
+{
+  SQUID_HIER_EMPTY = '0',
+  SQUID_HIER_NONE = '1',
+  SQUID_HIER_DIRECT = '2',
+  SQUID_HIER_SIBLING_HIT = '3',
+  SQUID_HIER_PARENT_HIT = '4',
+  SQUID_HIER_DEFAULT_PARENT = '5',
+  SQUID_HIER_SINGLE_PARENT = '6',
+  SQUID_HIER_FIRST_UP_PARENT = '7',
+  SQUID_HIER_NO_PARENT_DIRECT = '8',
+  SQUID_HIER_FIRST_PARENT_MISS = '9',
+  SQUID_HIER_LOCAL_IP_DIRECT = 'a',
+  SQUID_HIER_FIREWALL_IP_DIRECT = 'b',
+  SQUID_HIER_NO_DIRECT_FAIL = 'c',
+  SQUID_HIER_SOURCE_FASTEST = 'd',
+  SQUID_HIER_SIBLING_UDP_HIT_OBJ = 'e',
+  SQUID_HIER_PARENT_UDP_HIT_OBJ = 'f',
+  SQUID_HIER_PASSTHROUGH_PARENT = 'g',
+  SQUID_HIER_SSL_PARENT_MISS = 'h',
+  SQUID_HIER_INVALID_CODE = 'i',
+  SQUID_HIER_TIMEOUT_DIRECT = 'j',
+  SQUID_HIER_TIMEOUT_SIBLING_HIT = 'k',
+  SQUID_HIER_TIMEOUT_PARENT_HIT = 'l',
+  SQUID_HIER_TIMEOUT_DEFAULT_PARENT = 'm',
+  SQUID_HIER_TIMEOUT_SINGLE_PARENT = 'n',
+  SQUID_HIER_TIMEOUT_FIRST_UP_PARENT = 'o',
+  SQUID_HIER_TIMEOUT_NO_PARENT_DIRECT = 'p',
+  SQUID_HIER_TIMEOUT_FIRST_PARENT_MISS = 'q',
+  SQUID_HIER_TIMEOUT_LOCAL_IP_DIRECT = 'r',
+  SQUID_HIER_TIMEOUT_FIREWALL_IP_DIRECT = 's',
+  SQUID_HIER_TIMEOUT_NO_DIRECT_FAIL = 't',
+  SQUID_HIER_TIMEOUT_SOURCE_FASTEST = 'u',
+  SQUID_HIER_TIMEOUT_SIBLING_UDP_HIT_OBJ = 'v',
+  SQUID_HIER_TIMEOUT_PARENT_UDP_HIT_OBJ = 'w',
+  SQUID_HIER_TIMEOUT_PASSTHROUGH_PARENT = 'x',
+  SQUID_HIER_TIMEOUT_TIMEOUT_SSL_PARENT_MISS = 'y',
+  SQUID_HIER_INVALID_ASSIGNED_CODE = 'z'
+};
+
+/* squid hit/miss codes */
+enum SquidHitMissCode
+{
+  SQUID_HIT_RESERVED = '0',
+  SQUID_HIT_LEVEL_1 = '1',
+  SQUID_HIT_LEVEL_2 = '2',
+  SQUID_HIT_LEVEL_3 = '3',
+  SQUID_HIT_LEVEL_4 = '4',
+  SQUID_HIT_LEVEL_5 = '5',
+  SQUID_HIT_LEVEL_6 = '6',
+  SQUID_HIT_LEVEL_7 = '7',
+  SQUID_HIT_LEVEL_8 = '8',
+  SQUID_HIT_LEVEl_9 = '9',
+  SQUID_MISS_NONE = '1',
+  SQUID_MISS_ICP_AUTH = '2',
+  SQUID_MISS_HTTP_NON_CACHE = '3',
+  SQUID_MISS_ICP_STOPLIST = '4',
+  SQUID_MISS_HTTP_NO_DLE = '5',
+  SQUID_MISS_HTTP_NO_LE = '6',
+  SQUID_MISS_HTTP_CONTENT = '7',
+  SQUID_MISS_PRAGMA_NOCACHE = '8',
+  SQUID_MISS_PASS = '9',
+  SQUID_MISS_PRE_EXPIRED = 'a',
+  SQUID_MISS_ERROR = 'b',
+  SQUID_MISS_CACHE_BYPASS = 'c',
+  SQUID_HIT_MISS_INVALID_ASSIGNED_CODE = 'z'
+};
+
+
+enum HTTPType
+{
+  HTTP_TYPE_UNKNOWN,
+  HTTP_TYPE_REQUEST,
+  HTTP_TYPE_RESPONSE
+};
+
+struct HTTPHdrImpl:public HdrHeapObjImpl
+{
+  // HdrHeapObjImpl is 4 bytes
+  HTTPType m_polarity;          // request or response or unknown
+  int32_t m_version;              // cooked version number
+  // 12 bytes means 4 bytes padding here on 64-bit architectures
+  union
+  {
+    struct
+    {
+      URLImpl *m_url_impl;
+      const char *m_ptr_method;
+      uint16_t m_len_method;
+      int16_t m_method_wks_idx;
+    } req;
+
+    struct
+    {
+      const char *m_ptr_reason;
+      uint16_t m_len_reason;
+      int16_t m_status;
+    } resp;
+  } u;
+
+  MIMEHdrImpl *m_fields_impl;
+
+  // Marshaling Functions
+  int marshal(MarshalXlate *ptr_xlate, int num_ptr, MarshalXlate *str_xlate, int num_str);
+  void unmarshal(intptr_t offset);
+  void move_strings(HdrStrHeap *new_heap);
+  size_t strings_length();
+
+  // Sanity Check Functions
+  void check_strings(HeapCheck *heaps, int num_heaps);
+};
+
+struct HTTPValAccept
+{
+  char *type;
+  char *subtype;
+  double qvalue;
+};
+
+
+struct HTTPValAcceptCharset
+{
+  char *charset;
+  double qvalue;
+};
+
+
+struct HTTPValAcceptEncoding
+{
+  char *encoding;
+  double qvalue;
+};
+
+
+struct HTTPValAcceptLanguage
+{
+  char *language;
+  double qvalue;
+};
+
+
+struct HTTPValFieldList
+{
+  char *name;
+  HTTPValFieldList *next;
+};
+
+
+struct HTTPValCacheControl
+{
+  const char *directive;
+
+  union
+  {
+    int delta_seconds;
+    HTTPValFieldList *field_names;
+  } u;
+};
+
+
+struct HTTPValRange
+{
+  int start;
+  int end;
+  HTTPValRange *next;
+};
+
+
+struct HTTPValTE
+{
+  char *encoding;
+  double qvalue;
+};
+
+
+struct HTTPParser
+{
+  bool m_parsing_http;
+  MIMEParser m_mime_parser;
+};
+
+
+extern const char *HTTP_METHOD_CONNECT;
+extern const char *HTTP_METHOD_DELETE;
+extern const char *HTTP_METHOD_GET;
+extern const char *HTTP_METHOD_HEAD;
+extern const char *HTTP_METHOD_ICP_QUERY;
+extern const char *HTTP_METHOD_OPTIONS;
+extern const char *HTTP_METHOD_POST;
+extern const char *HTTP_METHOD_PURGE;
+extern const char *HTTP_METHOD_PUT;
+extern const char *HTTP_METHOD_TRACE;
+extern const char *HTTP_METHOD_PUSH;
+
+extern int HTTP_WKSIDX_CONNECT;
+extern int HTTP_WKSIDX_DELETE;
+extern int HTTP_WKSIDX_GET;
+extern int HTTP_WKSIDX_HEAD;
+extern int HTTP_WKSIDX_ICP_QUERY;
+extern int HTTP_WKSIDX_OPTIONS;
+extern int HTTP_WKSIDX_POST;
+extern int HTTP_WKSIDX_PURGE;
+extern int HTTP_WKSIDX_PUT;
+extern int HTTP_WKSIDX_TRACE;
+extern int HTTP_WKSIDX_PUSH;
+extern int HTTP_WKSIDX_METHODS_CNT;
+
+
+extern int HTTP_LEN_CONNECT;
+extern int HTTP_LEN_DELETE;
+extern int HTTP_LEN_GET;
+extern int HTTP_LEN_HEAD;
+extern int HTTP_LEN_ICP_QUERY;
+extern int HTTP_LEN_OPTIONS;
+extern int HTTP_LEN_POST;
+extern int HTTP_LEN_PURGE;
+extern int HTTP_LEN_PUT;
+extern int HTTP_LEN_TRACE;
+extern int HTTP_LEN_PUSH;
+
+extern const char *HTTP_VALUE_BYTES;
+extern const char *HTTP_VALUE_CHUNKED;
+extern const char *HTTP_VALUE_CLOSE;
+extern const char *HTTP_VALUE_COMPRESS;
+extern const char *HTTP_VALUE_DEFLATE;
+extern const char *HTTP_VALUE_GZIP;
+extern const char *HTTP_VALUE_IDENTITY;
+extern const char *HTTP_VALUE_KEEP_ALIVE;
+extern const char *HTTP_VALUE_MAX_AGE;
+extern const char *HTTP_VALUE_MAX_STALE;
+extern const char *HTTP_VALUE_MIN_FRESH;
+extern const char *HTTP_VALUE_MUST_REVALIDATE;
+extern const char *HTTP_VALUE_NONE;
+extern const char *HTTP_VALUE_NO_CACHE;
+extern const char *HTTP_VALUE_NO_STORE;
+extern const char *HTTP_VALUE_NO_TRANSFORM;
+extern const char *HTTP_VALUE_ONLY_IF_CACHED;
+extern const char *HTTP_VALUE_PRIVATE;
+extern const char *HTTP_VALUE_PROXY_REVALIDATE;
+extern const char *HTTP_VALUE_PUBLIC;
+extern const char *HTTP_VALUE_S_MAXAGE;
+extern const char *HTTP_VALUE_NEED_REVALIDATE_ONCE;
+extern const char *HTTP_VALUE_100_CONTINUE;
+
+extern int HTTP_LEN_BYTES;
+extern int HTTP_LEN_CHUNKED;
+extern int HTTP_LEN_CLOSE;
+extern int HTTP_LEN_COMPRESS;
+extern int HTTP_LEN_DEFLATE;
+extern int HTTP_LEN_GZIP;
+extern int HTTP_LEN_IDENTITY;
+extern int HTTP_LEN_KEEP_ALIVE;
+extern int HTTP_LEN_MAX_AGE;
+extern int HTTP_LEN_MAX_STALE;
+extern int HTTP_LEN_MIN_FRESH;
+extern int HTTP_LEN_MUST_REVALIDATE;
+extern int HTTP_LEN_NONE;
+extern int HTTP_LEN_NO_CACHE;
+extern int HTTP_LEN_NO_STORE;
+extern int HTTP_LEN_NO_TRANSFORM;
+extern int HTTP_LEN_ONLY_IF_CACHED;
+extern int HTTP_LEN_PRIVATE;
+extern int HTTP_LEN_PROXY_REVALIDATE;
+extern int HTTP_LEN_PUBLIC;
+extern int HTTP_LEN_S_MAXAGE;
+extern int HTTP_LEN_NEED_REVALIDATE_ONCE;
+extern int HTTP_LEN_100_CONTINUE;
+
+/* Private */
+void http_hdr_adjust(HTTPHdrImpl *hdrp, int32_t offset, int32_t length, int32_t delta);
+
+/* Public */
+void http_init();
+
+inkcoreapi HTTPHdrImpl *http_hdr_create(HdrHeap *heap, HTTPType polarity);
+void http_hdr_init(HdrHeap *heap, HTTPHdrImpl *hh, HTTPType polarity);
+HTTPHdrImpl *http_hdr_clone(HTTPHdrImpl *s_hh, HdrHeap *s_heap, HdrHeap *d_heap);
+void http_hdr_copy_onto(HTTPHdrImpl *s_hh, HdrHeap *s_heap, HTTPHdrImpl *d_hh, HdrHeap *d_heap, bool inherit_strs);
+
+inkcoreapi int http_hdr_print(HdrHeap *heap, HTTPHdrImpl *hh, char *buf, int bufsize, int *bufindex, int *dumpoffset);
+
+void http_hdr_describe(HdrHeapObjImpl *obj, bool recurse = true);
+
+int http_hdr_length_get(HTTPHdrImpl *hh);
+// HTTPType               http_hdr_type_get (HTTPHdrImpl *hh);
+
+// int32_t                  http_hdr_version_get (HTTPHdrImpl *hh);
+inkcoreapi void http_hdr_version_set(HTTPHdrImpl *hh, int32_t ver);
+
+const char *http_hdr_method_get(HTTPHdrImpl *hh, int *length);
+inkcoreapi void http_hdr_method_set(HdrHeap *heap, HTTPHdrImpl *hh,
+                                    const char *method, int16_t method_wks_idx, int method_length, bool must_copy);
+
+void http_hdr_url_set(HdrHeap *heap, HTTPHdrImpl *hh, URLImpl *url);
+
+// HTTPStatus             http_hdr_status_get (HTTPHdrImpl *hh);
+void http_hdr_status_set(HTTPHdrImpl *hh, HTTPStatus status);
+const char *http_hdr_reason_get(HTTPHdrImpl *hh, int *length);
+void http_hdr_reason_set(HdrHeap *heap, HTTPHdrImpl *hh, const char *value, int length, bool must_copy);
+const char *http_hdr_reason_lookup(unsigned status);
+
+void http_parser_init(HTTPParser *parser);
+void http_parser_clear(HTTPParser *parser);
+MIMEParseResult http_parser_parse_req(HTTPParser *parser, HdrHeap *heap,
+                                      HTTPHdrImpl *hh, const char **start,
+                                      const char *end, bool must_copy_strings, bool eof);
+MIMEParseResult http_parser_parse_resp(HTTPParser *parser, HdrHeap *heap,
+                                       HTTPHdrImpl *hh, const char **start,
+                                       const char *end, bool must_copy_strings, bool eof);
+HTTPStatus http_parse_status(const char *start, const char *end);
+int32_t http_parse_version(const char *start, const char *end);
+
+
+/*
+HTTPValAccept*         http_parse_accept (const char *buf, Arena *arena);
+HTTPValAcceptCharset*  http_parse_accept_charset (const char *buf, Arena *arena);
+HTTPValAcceptEncoding* http_parse_accept_encoding (const char *buf, Arena *arena);
+HTTPValAcceptLanguage* http_parse_accept_language (const char *buf, Arena *arena);
+HTTPValCacheControl*   http_parse_cache_control (const char *buf, Arena *arena);
+const char*            http_parse_cache_directive (const char **buf);
+HTTPValRange*          http_parse_range (const char *buf, Arena *arena);
+*/
+HTTPValTE *http_parse_te(const char *buf, int len, Arena *arena);
+
+
+class HTTPVersion
+{
+public:
+  HTTPVersion();
+  explicit HTTPVersion(int32_t version);
+  HTTPVersion(int ver_major, int ver_minor);
+
+  void set(HTTPVersion ver);
+  void set(int ver_major, int ver_minor);
+
+  HTTPVersion & operator =(const HTTPVersion & hv);
+  int operator ==(const HTTPVersion & hv) const;
+  int operator !=(const HTTPVersion & hv) const;
+  int operator >(const HTTPVersion & hv) const;
+  int operator <(const HTTPVersion & hv) const;
+  int operator >=(const HTTPVersion & hv) const;
+  int operator <=(const HTTPVersion & hv) const;
+
+public:
+    int32_t m_version;
+};
+
+class IOBufferReader;
+
+class HTTPHdr: public MIMEHdr
+{
+public:
+  HTTPHdrImpl *m_http;
+  // This is all cached data and so is mutable.
+  mutable URL m_url_cached;
+  mutable MIMEField *m_host_mime;
+  mutable int m_host_length; ///< Length of hostname.
+  mutable int m_port; ///< Target port.
+  mutable bool m_target_cached; ///< Whether host name and port are cached.
+  mutable bool m_target_in_url; ///< Whether host name and port are in the URL.
+  /// Set if the port was effectively specified in the header.
+  /// @c true if the target (in the URL or the HOST field) also specified
+  /// a port. That is, @c true if whatever source had the target host
+  /// also had a port, @c false otherwise.
+  mutable bool m_port_in_header;
+
+  HTTPHdr();
+  ~HTTPHdr();
+
+  int valid() const;
+
+  void create(HTTPType polarity, HdrHeap *heap = NULL);
+  void clear();
+  void reset();
+  void copy(const HTTPHdr *hdr);
+  void copy_shallow(const HTTPHdr *hdr);
+
+  int unmarshal(char *buf, int len, RefCountObj *block_ref);
+
+  int print(char *buf, int bufsize, int *bufindex, int *dumpoffset);
+
+  int length_get();
+
+  HTTPType type_get() const;
+
+  HTTPVersion version_get();
+  void version_set(HTTPVersion version);
+
+  const char *method_get(int *length);
+  int method_get_wksidx();
+  void method_set(const char *value, int length);
+
+  URL *url_create(URL *url);
+
+  URL *url_get() const;
+  URL *url_get(URL *url);
+  /** Get a string with the effective URL in it.
+      If @a length is not @c NULL then the length of the string
+      is stored in the int pointed to by @a length.
+
+      Note that this can be different from getting the @c URL
+      and invoking @c URL::string_get if the host is in a header
+      field and not explicitly in the URL.
+   */
+  char* url_string_get(
+    Arena* arena = 0, ///< Arena to use, or @c malloc if NULL.
+    int* length = 0 ///< Store string length here.
+  );
+  /** Get a string with the effective URL in it.
+      This is automatically allocated if needed in the request heap.
+
+      @see url_string_get
+   */
+  char* url_string_get_ref(
+    int* length = 0 ///< Store string length here.
+  );
+
+  /** Print the URL.
+      Output is not null terminated.
+      @return 0 on failure, non-zero on success.
+   */
+  int url_print(
+      char* buff, ///< Output buffer
+      int length, ///< Length of @a buffer
+      int* offset, ///< [in,out] ???
+      int* skip ///< [in,out] ???
+  );
+
+  /** Get the URL path.
+      This is a reference, not allocated.
+      @return A pointer to the path or @c NULL if there is no valid URL.
+  */
+  char const* path_get(
+		       int* length ///< Storage for path length.
+		       );
+
+  /** Get the target host name.
+      The length is returned in @a length if non-NULL.
+      @note The results are cached so this is fast after the first call.
+      @return A pointer to the host name.
+  */
+  char const* host_get(int* length = 0);
+
+  /** Get the target port.
+      If the target port is not found then it is adjusted to the
+      default port for the URL type.
+      @note The results are cached so this is fast after the first call.
+      @return The canonicalized target port.
+  */
+  int port_get();
+
+  /** Get the URL scheme.
+      This is a reference, not allocated.
+      @return A pointer to the scheme or @c NULL if there is no valid URL.
+  */
+  char const* scheme_get(
+		       int* length ///< Storage for path length.
+		       );
+  void url_set(URL *url);
+  void url_set_as_server_url(URL *url);
+  void url_set(const char *str, int length);
+
+  /// Check location of target host.
+  /// @return @c true if the host was in the URL, @c false otherwise.
+  /// @note This returns @c false if the host is missing.
+  bool is_target_in_url() const;
+
+  /// Check if a port was specified in the target.
+  /// @return @c true if the port was part of the target.
+  bool is_port_in_header() const;
+
+  /// If the target is in the fields and not the URL, copy it to the @a url.
+  /// If @a url is @c NULL the cached URL in this header is used.
+  /// @note In the default case the copy is avoided if the cached URL already
+  /// has the target. If @a url is non @c NULL the copy is always performed.
+  void set_url_target_from_host_field(URL* url = 0);
+
+  /// Mark the target cache as invalid.
+  /// @internal Ugly but too many places currently that touch the
+  /// header internals, they must be able to do this.
+  void mark_target_dirty() const;
+
+  HTTPStatus status_get();
+  void status_set(HTTPStatus status);
+
+  const char *reason_get(int *length);
+  void reason_set(const char *value, int length);
+
+  MIMEParseResult parse_req(HTTPParser *parser, const char **start, const char *end, bool eof);
+  MIMEParseResult parse_resp(HTTPParser *parser, const char **start, const char *end, bool eof);
+
+  MIMEParseResult parse_req(HTTPParser *parser, IOBufferReader *r, int *bytes_used, bool eof);
+  MIMEParseResult parse_resp(HTTPParser *parser, IOBufferReader *r, int *bytes_used, bool eof);
+
+public:
+  // Utility routines
+  bool is_cache_control_set(const char *cc_directive_wks);
+  bool is_pragma_no_cache_set();
+
+protected:
+  /** Load the target cache.
+      @see m_host, m_port, m_target_in_url
+  */
+  void _fill_target_cache() const;
+  /** Test the cache and fill it if necessary.
+      @internal In contrast to @c _fill_target_cache, this method
+      is inline and checks whether the cache is already filled.
+      @ _fill_target_cache @b always does a cache fill.
+  */
+  void _test_and_fill_target_cache() const;
+
+  static Arena* const USE_HDR_HEAP_MAGIC;
+
+private:
+  // No gratuitous copies!
+  HTTPHdr(const HTTPHdr & m);
+  HTTPHdr & operator =(const HTTPHdr & m);
+
+  friend class UrlPrintHack; // don't ask.
+};
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPVersion::HTTPVersion()
+:m_version(HTTP_VERSION(0, 9))
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPVersion::HTTPVersion(int32_t version)
+:m_version(version)
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPVersion::HTTPVersion(int ver_major, int ver_minor)
+  :
+m_version(HTTP_VERSION(ver_major, ver_minor))
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPVersion::set(HTTPVersion ver)
+{
+  m_version = ver.m_version;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPVersion::set(int ver_major, int ver_minor)
+{
+  m_version = HTTP_VERSION(ver_major, ver_minor);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPVersion &
+HTTPVersion::operator =(const HTTPVersion & hv)
+{
+  m_version = hv.m_version;
+
+  return *this;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPVersion::operator ==(const HTTPVersion & hv) const
+{
+  return (m_version == hv.m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPVersion::operator !=(const HTTPVersion & hv) const
+{
+  return (m_version != hv.m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPVersion::operator >(const HTTPVersion & hv) const
+{
+  return (m_version > hv.m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPVersion::operator <(const HTTPVersion & hv) const
+{
+  return (m_version < hv.m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPVersion::operator >=(const HTTPVersion & hv) const
+{
+  return (m_version >= hv.m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPVersion::operator <=(const HTTPVersion & hv) const
+{
+  return (m_version <= hv.m_version);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline
+HTTPHdr::HTTPHdr()
+  : MIMEHdr(), m_http(NULL), m_url_cached(), m_target_cached(false)
+{ }
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+inline
+HTTPHdr::~HTTPHdr()
+{                               /* nop */
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPHdr::valid() const
+{
+  return (m_http && m_mime && m_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::create(HTTPType polarity, HdrHeap *heap)
+{
+  if (heap) {
+    m_heap = heap;
+  } else if (!m_heap) {
+    m_heap = new_HdrHeap();
+  }
+
+  m_http = http_hdr_create(m_heap, polarity);
+  m_mime = m_http->m_fields_impl;
+}
+
+inline void
+HTTPHdr::clear()
+{
+
+  if (m_http && m_http->m_polarity == HTTP_TYPE_REQUEST) {
+    m_url_cached.clear();
+  }
+  this->HdrHeapSDKHandle::clear();
+  m_http = NULL;
+  m_mime = NULL;
+}
+
+inline void
+HTTPHdr::reset()
+{
+  m_heap = NULL;
+  m_http = NULL;
+  m_mime = NULL;
+  m_url_cached.reset();
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::copy(const HTTPHdr *hdr)
+{
+  ink_assert(hdr->valid());
+
+  if (valid()) {
+    http_hdr_copy_onto(hdr->m_http, hdr->m_heap, m_http, m_heap, (m_heap != hdr->m_heap) ? true : false);
+  } else {
+    m_heap = new_HdrHeap();
+    m_http = http_hdr_clone(hdr->m_http, hdr->m_heap, m_heap);
+    m_mime = m_http->m_fields_impl;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::copy_shallow(const HTTPHdr *hdr)
+{
+  ink_assert(hdr->valid());
+
+  m_heap = hdr->m_heap;
+  m_http = hdr->m_http;
+  m_mime = hdr->m_mime;
+
+  if (hdr->type_get() == HTTP_TYPE_REQUEST && m_url_cached.valid())
+    m_url_cached.copy_shallow(&hdr->m_url_cached);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPHdr::print(char *buf, int bufsize, int *bufindex, int *dumpoffset)
+{
+  ink_assert(valid());
+  return http_hdr_print(m_heap, m_http, buf, bufsize, bufindex, dumpoffset);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPHdr::length_get()
+{
+  ink_assert(valid());
+  return http_hdr_length_get(m_http);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::_test_and_fill_target_cache() const {
+  if (!m_target_cached) this->_fill_target_cache();
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline char const*
+HTTPHdr::host_get(int* length)
+{
+  this->_test_and_fill_target_cache();
+  if (m_target_in_url) {
+    return url_get()->host_get(length);
+  } else if (m_host_mime) {
+    if (length) *length = m_host_length;
+    return m_host_mime->m_ptr_value;
+  }
+
+  if (length) *length = 0;
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+HTTPHdr::port_get()
+{
+  this->_test_and_fill_target_cache();
+  return m_port;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+HTTPHdr::is_target_in_url() const
+{
+  this->_test_and_fill_target_cache();
+  return m_target_in_url;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+HTTPHdr::is_port_in_header() const
+{
+  this->_test_and_fill_target_cache();
+  return m_port_in_header;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::mark_target_dirty() const
+{
+  m_target_cached = false;
+}
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPType
+http_hdr_type_get(HTTPHdrImpl *hh)
+{
+  return (hh->m_polarity);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPType
+HTTPHdr::type_get() const
+{
+  ink_assert(valid());
+  return http_hdr_type_get(m_http);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+http_hdr_version_get(HTTPHdrImpl *hh)
+{
+  return (hh->m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPVersion
+HTTPHdr::version_get()
+{
+  ink_assert(valid());
+  return HTTPVersion(http_hdr_version_get(m_http));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::version_set(HTTPVersion version)
+{
+  ink_assert(valid());
+  http_hdr_version_set(m_http, version.m_version);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+HTTPHdr::method_get(int *length)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  return http_hdr_method_get(m_http, length);
+}
+
+
+inline int
+HTTPHdr::method_get_wksidx()
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  return (m_http->u.req.m_method_wks_idx);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::method_set(const char *value, int length)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  int method_wks_idx = hdrtoken_tokenize(value, length);
+  http_hdr_method_set(m_heap, m_http, value, method_wks_idx, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline URL *
+HTTPHdr::url_create(URL *u)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  u->set(this);
+  u->create(m_heap);
+  return (u);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline URL *
+HTTPHdr::url_get() const
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  // It's entirely possible that someone changed URL in our impl
+  // without updating the cached copy in the C++ layer.  Check
+  // to see if this happened before handing back the url
+
+  URLImpl *real_impl = m_http->u.req.m_url_impl;
+  if (m_url_cached.m_url_impl != real_impl) {
+    m_url_cached.set(this);
+    m_url_cached.m_url_impl = real_impl;
+    this->mark_target_dirty();
+  }
+  return (&m_url_cached);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline URL *
+HTTPHdr::url_get(URL *url)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  url->set(this);               // attach refcount
+  url->m_url_impl = m_http->u.req.m_url_impl;
+  return (url);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::url_set(URL *url)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  URLImpl *url_impl = m_http->u.req.m_url_impl;
+  ::url_copy_onto(url->m_url_impl, url->m_heap, url_impl, m_heap, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::url_set_as_server_url(URL *url)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  URLImpl *url_impl = m_http->u.req.m_url_impl;
+  ::url_copy_onto_as_server_url(url->m_url_impl, url->m_heap, url_impl, m_heap, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::url_set(const char *str, int length)
+{
+  URLImpl *url_impl;
+
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  url_impl = m_http->u.req.m_url_impl;
+  ::url_clear(url_impl);
+  ::url_parse(m_heap, url_impl, &str, str + length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPStatus
+http_hdr_status_get(HTTPHdrImpl *hh)
+{
+  ink_assert(hh->m_polarity == HTTP_TYPE_RESPONSE);
+  return (HTTPStatus) hh->u.resp.m_status;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HTTPStatus
+HTTPHdr::status_get()
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_RESPONSE);
+
+  return (NULL == m_http) ? HTTP_STATUS_NONE : http_hdr_status_get(m_http);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::status_set(HTTPStatus status)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_RESPONSE);
+
+  http_hdr_status_set(m_http, status);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+HTTPHdr::reason_get(int *length)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_RESPONSE);
+
+  return http_hdr_reason_get(m_http, length);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HTTPHdr::reason_set(const char *value, int length)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_RESPONSE);
+
+  http_hdr_reason_set(m_heap, m_http, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline MIMEParseResult
+HTTPHdr::parse_req(HTTPParser *parser, const char **start, const char *end, bool eof)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  return http_parser_parse_req(parser, m_heap, m_http, start, end, true, eof);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline MIMEParseResult
+HTTPHdr::parse_resp(HTTPParser *parser, const char **start, const char *end, bool eof)
+{
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_RESPONSE);
+
+  return http_parser_parse_resp(parser, m_heap, m_http, start, end, true, eof);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+HTTPHdr::is_cache_control_set(const char *cc_directive_wks)
+{
+  ink_assert(valid());
+  ink_assert(hdrtoken_is_wks(cc_directive_wks));
+
+  HdrTokenHeapPrefix *prefix = hdrtoken_wks_to_prefix(cc_directive_wks);
+  ink_assert(prefix->wks_token_type == HDRTOKEN_TYPE_CACHE_CONTROL);
+
+  uint32_t cc_mask = prefix->wks_type_specific.u.cache_control.cc_mask;
+  if (get_cooked_cc_mask() & cc_mask)
+    return (true);
+  else
+    return (false);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+HTTPHdr::is_pragma_no_cache_set()
+{
+  ink_assert(valid());
+  return (get_cooked_pragma_no_cache());
+}
+
+inline char*
+HTTPHdr::url_string_get_ref(int* length)
+{
+  return this->url_string_get(USE_HDR_HEAP_MAGIC, length);
+}
+
+inline char const*
+HTTPHdr::path_get(int* length)
+{
+  URL* url = this->url_get();
+  return url ? url->path_get(length) : 0;
+}
+
+inline char const*
+HTTPHdr::scheme_get(int* length)
+{
+  URL* url = this->url_get();
+  return url ? url->scheme_get(length) : 0;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+enum
+{
+  CACHE_ALT_MAGIC_ALIVE = 0xabcddeed,
+  CACHE_ALT_MAGIC_MARSHALED = 0xdcbadeed,
+  CACHE_ALT_MAGIC_DEAD = 0xdeadeed
+};
+
+// struct HTTPCacheAlt
+struct HTTPCacheAlt
+{
+  HTTPCacheAlt();
+  void copy(HTTPCacheAlt *to_copy);
+  void copy_frag_offsets_from(HTTPCacheAlt* src);
+  void destroy();
+
+  uint32_t m_magic;
+
+  // Writeable is set to true is we reside
+  //  in a buffer owned by this structure.
+  // INVARIANT: if own the buffer this HttpCacheAlt
+  //   we also own the buffers for the request &
+  //   response headers
+  int32_t m_writeable;
+  int32_t m_unmarshal_len;
+
+  int32_t m_id;
+  int32_t m_rid;
+
+  int32_t m_object_key[4];
+  int32_t m_object_size[2];
+
+  HTTPHdr m_request_hdr;
+  HTTPHdr m_response_hdr;
+
+  time_t m_request_sent_time;
+  time_t m_response_received_time;
+
+  /// # of fragment offsets in this alternate.
+  /// @note This is one less than the number of fragments.
+  int m_frag_offset_count;
+  /// Type of offset for a fragment.
+  typedef uint64_t FragOffset;
+  /// Table of fragment offsets.
+  /// @note The offsets are forward looking so that frag[0] is the
+  /// first byte past the end of fragment 0 which is also the first
+  /// byte of fragment 1. For this reason there is no fragment offset
+  /// for the last fragment.
+  FragOffset *m_frag_offsets;
+  /// # of fragment offsets built in to object.
+  static int const N_INTEGRAL_FRAG_OFFSETS = 4;
+  /// Integral fragment offset table.
+  FragOffset m_integral_frag_offsets[N_INTEGRAL_FRAG_OFFSETS];
+
+  // With clustering, our alt may be in cluster
+  //  incoming channel buffer, when we are
+  //  destroyed we decrement the refcount
+  //  on that buffer so that it gets destroyed
+  // We don't want to use a ref count ptr (Ptr<>)
+  //  since our ownership model requires explicit
+  //  destroys and ref count pointers defeat this
+  RefCountObj *m_ext_buffer;
+};
+
+class HTTPInfo
+{
+public:
+  typedef HTTPCacheAlt::FragOffset FragOffset; ///< Import type.
+
+  HTTPCacheAlt *m_alt;
+
+  HTTPInfo()
+    : m_alt(NULL)
+  { }
+
+  ~HTTPInfo()
+  {
+    clear();
+  }
+
+  void clear() { m_alt = NULL; }
+  bool valid() const { return m_alt != NULL; }
+
+  void create();
+  void destroy();
+
+  void copy(HTTPInfo *to_copy);
+  void copy_shallow(HTTPInfo *info) { m_alt = info->m_alt; }
+  void copy_frag_offsets_from(HTTPInfo* src);
+  HTTPInfo & operator =(const HTTPInfo & m);
+
+  inkcoreapi int marshal_length();
+  inkcoreapi int marshal(char *buf, int len);
+  static int unmarshal(char *buf, int len, RefCountObj *block_ref);
+  void set_buffer_reference(RefCountObj *block_ref);
+  int get_handle(char *buf, int len);
+
+  int32_t id_get() const { return m_alt->m_id; }
+  int32_t rid_get() { return m_alt->m_rid; }
+
+  void id_set(int32_t id) { m_alt->m_id = id; }
+  void rid_set(int32_t id) { m_alt->m_rid = id; }
+
+  INK_MD5 object_key_get();
+  void object_key_get(INK_MD5 *);
+  bool compare_object_key(const INK_MD5 *);
+  int64_t object_size_get();
+
+  void request_get(HTTPHdr *hdr) { hdr->copy_shallow(&m_alt->m_request_hdr); }
+  void response_get(HTTPHdr *hdr) { hdr->copy_shallow(&m_alt->m_response_hdr); }
+
+  HTTPHdr *request_get() { return &m_alt->m_request_hdr; }
+  HTTPHdr *response_get() { return &m_alt->m_response_hdr; }
+
+  URL *request_url_get(URL *url = NULL) { return m_alt->m_request_hdr.url_get(url); }
+
+  time_t request_sent_time_get() { return m_alt->m_request_sent_time; }
+  time_t response_received_time_get() { return m_alt->m_response_received_time; }
+
+  void object_key_set(INK_MD5 & md5);
+  void object_size_set(int64_t size);
+
+  void request_set(const HTTPHdr *req) { m_alt->m_request_hdr.copy(req); }
+  void response_set(const HTTPHdr *resp) { m_alt->m_response_hdr.copy(resp); }
+
+  void request_sent_time_set(time_t t) { m_alt->m_request_sent_time = t; }
+  void response_received_time_set(time_t t) { m_alt->m_response_received_time = t; }
+
+  /// Get the fragment table.
+  FragOffset* get_frag_table();
+  /// Get the # of fragment offsets
+  /// @note This is the size of the fragment offset table, and one less
+  /// than the actual # of fragments.
+  int get_frag_offset_count();
+  /// Add an @a offset to the end of the fragment offset table.
+  void push_frag_offset(FragOffset offset);
+
+  // Sanity check functions
+  static bool check_marshalled(char *buf, int len);
+
+private:
+  HTTPInfo(const HTTPInfo & h);
+};
+
+inline void
+HTTPInfo::destroy()
+{
+  if (m_alt) {
+    if (m_alt->m_writeable) {
+      m_alt->destroy();
+    } else if (m_alt->m_ext_buffer) {
+      if (m_alt->m_ext_buffer->refcount_dec() == 0) {
+        m_alt->m_ext_buffer->free();
+      }
+    }
+  }
+  clear();
+}
+
+inline HTTPInfo &
+HTTPInfo::operator =(const HTTPInfo & m)
+{
+  m_alt = m.m_alt;
+  return *this;
+}
+
+inline INK_MD5
+HTTPInfo::object_key_get()
+{
+  INK_MD5 val;
+  int32_t* pi = reinterpret_cast<int32_t*>(&val);
+
+  pi[0] = m_alt->m_object_key[0];
+  pi[1] = m_alt->m_object_key[1];
+  pi[2] = m_alt->m_object_key[2];
+  pi[3] = m_alt->m_object_key[3];
+
+  return val;
+}
+
+inline void
+HTTPInfo::object_key_get(INK_MD5 *md5)
+{
+  int32_t* pi = reinterpret_cast<int32_t*>(md5);
+  pi[0] = m_alt->m_object_key[0];
+  pi[1] = m_alt->m_object_key[1];
+  pi[2] = m_alt->m_object_key[2];
+  pi[3] = m_alt->m_object_key[3];
+}
+
+inline bool
+HTTPInfo::compare_object_key(const INK_MD5 *md5)
+{
+  int32_t const* pi = reinterpret_cast<int32_t const*>(md5);
+  return ((m_alt->m_object_key[0] == pi[0]) &&
+          (m_alt->m_object_key[1] == pi[1]) &&
+          (m_alt->m_object_key[2] == pi[2]) &&
+          (m_alt->m_object_key[3] == pi[3])
+         );
+}
+
+inline int64_t
+HTTPInfo::object_size_get()
+{
+  int64_t val;
+  int32_t* pi = reinterpret_cast<int32_t*>(&val);
+
+  pi[0] = m_alt->m_object_size[0];
+  pi[1] = m_alt->m_object_size[1];
+  return val;
+}
+
+inline void
+HTTPInfo::object_key_set(INK_MD5 & md5)
+{
+  int32_t* pi = reinterpret_cast<int32_t*>(&md5);
+  m_alt->m_object_key[0] = pi[0];
+  m_alt->m_object_key[1] = pi[1];
+  m_alt->m_object_key[2] = pi[2];
+  m_alt->m_object_key[3] = pi[3];
+}
+
+inline void
+HTTPInfo::object_size_set(int64_t size)
+{
+  int32_t* pi = reinterpret_cast<int32_t*>(&size);
+  m_alt->m_object_size[0] = pi[0];
+  m_alt->m_object_size[1] = pi[1];
+}
+
+inline HTTPInfo::FragOffset*
+HTTPInfo::get_frag_table()
+{
+  return m_alt ? m_alt->m_frag_offsets : 0;
+}
+
+inline int
+HTTPInfo::get_frag_offset_count() {
+  return m_alt ? m_alt->m_frag_offset_count : 0;
+}
+
+
+#endif /* __HTTP_H__ */
diff --git a/proxy/hdrs/HdrHeap.cc b/proxy/hdrs/HdrHeap.cc
new file mode 100644
index 00000000..cd762e68
--- /dev/null
+++ b/proxy/hdrs/HdrHeap.cc
@@ -0,0 +1,1293 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrBuf.cc
+
+   Description:
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "HdrHeap.h"
+#include "URL.h"
+#include "MIME.h"
+#include "HTTP.h"
+#include "I_EventSystem.h"
+
+#define MAX_LOST_STR_SPACE 1024
+
+Allocator hdrHeapAllocator("hdrHeap", HDR_HEAP_DEFAULT_SIZE);
+static HdrHeap proto_heap;
+
+Allocator strHeapAllocator("hdrStrHeap", HDR_STR_HEAP_DEFAULT_SIZE);
+static HdrStrHeap str_proto_heap;
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+obj_describe(HdrHeapObjImpl * obj, bool recurse)
+{
+  static const char *obj_names[] = { "EMPTY", "RAW", "URL", "HTTP_HEADER", "MIME_HEADER", "FIELD_BLOCK" };
+
+  Debug("http", "%s %p: [T: %d, L: %4d, OBJFLAGS: %X]  ",
+        obj_names[obj->m_type], obj, obj->m_type, obj->m_length, obj->m_obj_flags);
+
+  extern void url_describe(HdrHeapObjImpl * obj, bool recurse);
+  extern void http_hdr_describe(HdrHeapObjImpl * obj, bool recurse);
+  extern void mime_hdr_describe(HdrHeapObjImpl * obj, bool recurse);
+  extern void mime_field_block_describe(HdrHeapObjImpl * obj, bool recurse);
+
+  switch (obj->m_type) {
+  case HDR_HEAP_OBJ_EMPTY:
+    break;
+  case HDR_HEAP_OBJ_RAW:
+    break;
+  case HDR_HEAP_OBJ_MIME_HEADER:
+    mime_hdr_describe(obj, recurse);
+    break;
+  case HDR_HEAP_OBJ_FIELD_BLOCK:
+    mime_field_block_describe(obj, recurse);
+    break;
+  case HDR_HEAP_OBJ_HTTP_HEADER:
+    http_hdr_describe(obj, recurse);
+    break;
+  case HDR_HEAP_OBJ_URL:
+    url_describe(obj, recurse);
+    break;
+  default:
+    break;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+HdrHeap::init()
+{
+  m_data_start = m_free_start = ((char *) this) + HDR_HEAP_HDR_SIZE;
+  m_magic = HDR_BUF_MAGIC_ALIVE;
+  m_writeable = true;
+
+  m_next = NULL;
+  m_free_size = m_size - HDR_HEAP_HDR_SIZE;
+
+  // We need to clear m_ptr directly since it's garbage and
+  //  using the operator functions will to free() what ever
+  //  garbage it is pointing to
+  m_read_write_heap.m_ptr = NULL;
+
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+    m_ronly_heap[i].m_heap_start = NULL;
+    m_ronly_heap[i].m_ref_count_ptr.m_ptr = NULL;
+    m_ronly_heap[i].m_locked = false;
+    m_ronly_heap[i].m_heap_len = 0;
+  }
+  m_lost_string_space = 0;
+
+  ink_assert(m_free_size > 0);
+}
+
+HdrHeap *
+new_HdrHeap(int size)
+{
+  HdrHeap *h;
+  if (size <= HDR_HEAP_DEFAULT_SIZE) {
+    size = HDR_HEAP_DEFAULT_SIZE;
+    h = (HdrHeap *)(THREAD_ALLOC(hdrHeapAllocator, this_ethread()));
+  } else {
+    h = (HdrHeap *)ats_malloc(size);
+  }
+
+//    Debug("hdrs", "Allocated header heap in size %d", size);
+
+  // Patch vritual function table ptr
+  *((void **) h) = *((void **) &proto_heap);
+
+  h->m_size = size;
+  h->init();
+
+
+  return h;
+}
+
+HdrStrHeap *
+new_HdrStrHeap(int requested_size)
+{
+  // The callee is asking for a string heap to be created
+  //  that can allocate at least size bytes.  As such we,
+  //  need to include the size of the string heap header in
+  //  our calculations
+
+  int alloc_size = requested_size + sizeof(HdrStrHeap);
+
+  HdrStrHeap *sh;
+  if (alloc_size <= HDR_STR_HEAP_DEFAULT_SIZE) {
+    alloc_size = HDR_STR_HEAP_DEFAULT_SIZE;
+    sh = (HdrStrHeap *)(THREAD_ALLOC(strHeapAllocator, this_ethread()));
+  } else {
+    alloc_size = ROUND(alloc_size, HDR_STR_HEAP_DEFAULT_SIZE*2);
+    sh = (HdrStrHeap *)ats_malloc(alloc_size);
+  }
+
+//    Debug("hdrs", "Allocated string heap in size %d", alloc_size);
+
+  // Patch virtual function table ptr
+  *((void **) sh) = *((void **) &str_proto_heap);
+
+  sh->m_heap_size = alloc_size;
+  sh->m_free_size = alloc_size - STR_HEAP_HDR_SIZE;
+  sh->m_free_start = ((char *) sh) + STR_HEAP_HDR_SIZE;
+  sh->m_refcount = 0;
+
+  ink_assert(sh->m_free_size > 0);
+
+  return sh;
+}
+
+void
+HdrHeap::destroy()
+{
+  if (m_next) {
+    m_next->destroy();
+  }
+
+  m_read_write_heap = NULL;
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; i++)
+    m_ronly_heap[i].m_ref_count_ptr = NULL;
+
+  if (m_size == HDR_HEAP_DEFAULT_SIZE) {
+    THREAD_FREE(this, hdrHeapAllocator, this_thread());
+  } else {
+    ats_free(this);
+  }
+}
+
+HdrHeapObjImpl *
+HdrHeap::allocate_obj(int nbytes, int type)
+{
+  char *new_space;
+  HdrHeapObjImpl *obj;
+
+  ink_assert(m_writeable);
+
+  nbytes = ROUND(nbytes, HDR_PTR_SIZE);
+
+  if (nbytes > (int)HDR_MAX_ALLOC_SIZE) {
+    ink_assert(!"alloc too big");
+    return NULL;
+  }
+
+  HdrHeap *h = this;
+
+
+  while (1) {
+    if ((unsigned) nbytes <= (h->m_free_size)) {
+      new_space = h->m_free_start;
+      h->m_free_start += nbytes;
+      h->m_free_size -= nbytes;
+
+      obj = (HdrHeapObjImpl *) new_space;
+      obj_init_header(obj, type, nbytes, 0);
+      ink_assert(obj_is_aligned(obj));
+
+      return obj;
+
+    }
+
+    if (h->m_next == NULL) {
+      // Allocate our next pointer heap
+      //   twice as large as this one so
+      //   number of pointer heaps is O(log n)
+      //   with regard to number of bytes allocated
+      h->m_next = new_HdrHeap(h->m_size * 2);
+    }
+
+    h = h->m_next;
+  }
+}
+
+void
+HdrHeap::deallocate_obj(HdrHeapObjImpl * obj)
+{
+  ink_assert(m_writeable);
+  obj->m_type = HDR_HEAP_OBJ_EMPTY;
+}
+
+
+char *
+HdrHeap::allocate_str(int nbytes)
+{
+  int last_size = 0;
+  char *new_space = NULL;
+  ink_assert(m_writeable);
+
+  // INKqa08287 - We could get infinite build up
+  //   of dead strings on header merge.  To prevent
+  //   this we keep track of the dead string space
+  //   and force a heap coalesce if it is too large.
+  //   Ideally this should be done on free_string()
+  //   but I already no that this code path is
+  //   safe for forcing a str coalesce so I'm doing
+  //   it here for sanity's sake
+  if (m_lost_string_space > (int)MAX_LOST_STR_SPACE) {
+    goto FAILED;
+  }
+
+
+RETRY:
+  // First check to see if we have a read/write
+  //   string heap
+  if (!m_read_write_heap) {
+    int next_size = (last_size * 2) - STR_HEAP_HDR_SIZE;
+    next_size = next_size > nbytes ? next_size : nbytes;
+    m_read_write_heap = new_HdrStrHeap(next_size);
+  }
+  // Try to allocate of our read/write string heap
+  new_space = m_read_write_heap->allocate(nbytes);
+
+  if (new_space) {
+    return new_space;
+  }
+
+  last_size = m_read_write_heap->m_heap_size;
+
+  // Our existing rw str heap doesn't have sufficient
+  //  capacity.  We need to move the current rw heap
+  //  out of the way and create a new one
+  if (demote_rw_str_heap() == 0) {
+    goto RETRY;
+  }
+
+FAILED:
+  // We failed to demote.  We'll have to coalesce
+  //  the heaps
+  coalesce_str_heaps();
+  goto RETRY;
+
+}
+
+// char* HdrHeap::expand_str(const char* old_str, int old_len, int new_len)
+//
+//   Attempt to grow an already allocated string.  For this to work,
+//      the string  has to be the last one in the read-write string
+//      heap and there has to be enough space that string heap
+//   If expansion succeeds, we return old_str.  If it fails, we
+//      return NULL
+//
+char *
+HdrHeap::expand_str(const char *old_str, int old_len, int new_len)
+{
+  if (m_read_write_heap && m_read_write_heap->contains(old_str))
+    return m_read_write_heap->expand((char *)old_str, old_len, new_len);
+
+  return NULL;
+}
+
+// char* HdrHeap::duplicate_str(char* str, int nbytes)
+//
+//  Allocates a new string and copies the old data.
+//  Returns the new string pointer.
+//
+char *
+HdrHeap::duplicate_str(const char *str, int nbytes)
+{
+  HeapGuard guard(this, str); // Don't let the source get de-allocated.
+  char *new_str = allocate_str(nbytes);
+
+  memcpy(new_str, str, nbytes);
+  return (new_str);
+}
+
+
+// int HdrHeap::demote_rw_str_heap()
+//
+//  Returns 0 on success and non-zero failure
+//   Failure means all the read only heap slots
+//   were full
+//
+int
+HdrHeap::demote_rw_str_heap()
+{
+  // First, see if we have any open slots for read
+  //  only heaps
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+    if (m_ronly_heap[i].m_heap_start == NULL) {
+      // We've found a slot
+      m_ronly_heap[i].m_ref_count_ptr = m_read_write_heap;
+      m_ronly_heap[i].m_heap_start = (char *) m_read_write_heap.m_ptr;
+      m_ronly_heap[i].m_heap_len = m_read_write_heap->m_heap_size - m_read_write_heap->m_free_size;
+
+//          Debug("hdrs", "Demoted rw heap of %d size", m_read_write_heap->m_heap_size);
+      m_read_write_heap = NULL;
+      return 0;
+    }
+  }
+
+  // No open slots
+  return 1;
+}
+
+// void HdrHeap::coalesce_heaps()
+//
+//    Take existing stringheaps and combine them to free up
+//      slots in the heap array
+//
+//  FIX ME: Should we combine a subset of the heaps
+//     or all of them?  Current plan is combine all heaps
+//     since saves doing bounds checks every string.  At
+//     expense of doing far more copying
+//
+void
+HdrHeap::coalesce_str_heaps(int incoming_size)
+{
+  int new_heap_size = incoming_size;
+  ink_assert(incoming_size >= 0);
+  ink_assert(m_writeable);
+
+  new_heap_size += required_space_for_evacuation();
+
+  HdrStrHeap *new_heap = new_HdrStrHeap(new_heap_size);
+  evacuate_from_str_heaps(new_heap);
+  m_lost_string_space = 0;
+
+  // At this point none of the currently used string
+  //  heaps are needed since everything is in the
+  //  new string heap.  So deallocate all the old heaps
+  m_read_write_heap = new_heap;
+
+  int heaps_removed = 0;
+  for (int j = 0; j < HDR_BUF_RONLY_HEAPS; j++) {
+    if (m_ronly_heap[j].m_heap_start != NULL && m_ronly_heap[j].m_locked == false) {
+      m_ronly_heap[j].m_ref_count_ptr = NULL;
+      m_ronly_heap[j].m_heap_start = NULL;
+      m_ronly_heap[j].m_heap_len = 0;
+      heaps_removed++;
+    }
+  }
+
+  // This function is presumed to free up read only
+  //   string heap slots or be for incoming heaps
+  //   If we don't have any free heaps, we are screwed
+  ink_assert(heaps_removed > 0 || incoming_size > 0 || m_ronly_heap[0].m_heap_start == NULL);
+}
+
+void
+HdrHeap::evacuate_from_str_heaps(HdrStrHeap * new_heap)
+{
+//    printf("Str Evac\n");
+  // Loop over the objects in heap and call the evacuation
+  //  function in each one
+  HdrHeap *h = this;
+  ink_assert(m_writeable);
+
+  while (h) {
+    char *data = h->m_data_start;
+
+    while (data < h->m_free_start) {
+      HdrHeapObjImpl *obj = (HdrHeapObjImpl *) data;
+
+      switch (obj->m_type) {
+      case HDR_HEAP_OBJ_URL:
+        ((URLImpl *) obj)->move_strings(new_heap);
+        break;
+      case HDR_HEAP_OBJ_HTTP_HEADER:
+        ((HTTPHdrImpl *) obj)->move_strings(new_heap);
+        break;
+      case HDR_HEAP_OBJ_MIME_HEADER:
+        ((MIMEHdrImpl *) obj)->move_strings(new_heap);
+        break;
+      case HDR_HEAP_OBJ_FIELD_BLOCK:
+        ((MIMEFieldBlockImpl *) obj)->move_strings(new_heap);
+        break;
+      case HDR_HEAP_OBJ_EMPTY:
+      case HDR_HEAP_OBJ_RAW:
+        // Nothing to do
+        break;
+      default:
+        ink_release_assert(0);
+      }
+
+      data = data + obj->m_length;
+    }
+
+    h = h->m_next;
+
+  }
+}
+
+size_t
+HdrHeap::required_space_for_evacuation()
+{
+  size_t ret = 0;
+  HdrHeap *h = this;
+  while (h) {
+    char *data = h->m_data_start;
+
+    while (data < h->m_free_start) {
+      HdrHeapObjImpl *obj = (HdrHeapObjImpl *) data;
+
+      switch (obj->m_type) {
+      case HDR_HEAP_OBJ_URL:
+        ret += ((URLImpl *) obj)->strings_length();
+        break;
+      case HDR_HEAP_OBJ_HTTP_HEADER:
+        ret += ((HTTPHdrImpl *) obj)->strings_length();
+        break;
+      case HDR_HEAP_OBJ_MIME_HEADER:
+        ret += ((MIMEHdrImpl *) obj)->strings_length();
+        break;
+      case HDR_HEAP_OBJ_FIELD_BLOCK:
+        ret += ((MIMEFieldBlockImpl *) obj)->strings_length();
+        break;
+      case HDR_HEAP_OBJ_EMPTY:
+      case HDR_HEAP_OBJ_RAW:
+        // Nothing to do
+        break;
+      default:
+        ink_release_assert(0);
+      }
+      data = data + obj->m_length;
+    }
+    h = h->m_next;
+  }
+  return ret;
+}
+
+void
+HdrHeap::sanity_check_strs()
+{
+  int num_heaps = 0;
+  struct HeapCheck heaps[HDR_BUF_RONLY_HEAPS + 1];
+
+  // Build up a string check table
+  if (m_read_write_heap) {
+    heaps[num_heaps].start = ((char *) m_read_write_heap.m_ptr) + sizeof(HdrStrHeap);
+
+    int heap_size = m_read_write_heap->m_heap_size - (sizeof(HdrStrHeap) + m_read_write_heap->m_free_size);
+
+    heaps[num_heaps].end = heaps[num_heaps].start + heap_size;
+    num_heaps++;
+  }
+
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+    if (m_ronly_heap[i].m_heap_start != NULL) {
+      heaps[num_heaps].start = m_ronly_heap[i].m_heap_start;
+      heaps[num_heaps].end = m_ronly_heap[i].m_heap_start + m_ronly_heap[i].m_heap_len;
+      num_heaps++;
+    }
+  }
+
+
+  // Loop over the objects in heap call the check
+  //   function on each one
+  HdrHeap *h = this;
+
+  while (h) {
+    char *data = h->m_data_start;
+
+    while (data < h->m_free_start) {
+      HdrHeapObjImpl *obj = (HdrHeapObjImpl *) data;
+
+      switch (obj->m_type) {
+      case HDR_HEAP_OBJ_URL:
+        ((URLImpl *) obj)->check_strings(heaps, num_heaps);
+        break;
+      case HDR_HEAP_OBJ_HTTP_HEADER:
+        ((HTTPHdrImpl *) obj)->check_strings(heaps, num_heaps);
+        break;
+      case HDR_HEAP_OBJ_MIME_HEADER:
+        ((MIMEHdrImpl *) obj)->check_strings(heaps, num_heaps);
+        break;
+      case HDR_HEAP_OBJ_FIELD_BLOCK:
+        ((MIMEFieldBlockImpl *) obj)->check_strings(heaps, num_heaps);
+        break;
+      case HDR_HEAP_OBJ_EMPTY:
+      case HDR_HEAP_OBJ_RAW:
+        // Nothing to do
+        break;
+      default:
+        ink_release_assert(0);
+      }
+
+      data = data + obj->m_length;
+    }
+
+    h = h->m_next;
+
+  }
+}
+
+
+// int HdrHeap::marshal_length()
+//
+//  Determines what the length of a buffer needs to
+//   be to marshal this header
+//
+int
+HdrHeap::marshal_length()
+{
+  int len;
+
+  // If there is more than one HdrHeap block, we'll
+  //  coalesce the HdrHeap blocks together so we
+  //  only need one block header
+  len = HDR_HEAP_HDR_SIZE;
+  HdrHeap *h = this;
+
+  while (h) {
+    len += (int) (h->m_free_start - h->m_data_start);
+    h = h->m_next;
+  }
+
+  // Since when we unmarshal, we won't have a writable string
+  //  heap, we can drop the header on the read/write
+  //  string heap
+  if (m_read_write_heap) {
+    len += m_read_write_heap->m_heap_size - (sizeof(HdrStrHeap) + m_read_write_heap->m_free_size);
+  }
+
+  for (int j = 0; j < HDR_BUF_RONLY_HEAPS; j++) {
+    if (m_ronly_heap[j].m_heap_start != NULL) {
+      len += m_ronly_heap[j].m_heap_len;
+    }
+  }
+
+  len = ROUND(len, HDR_PTR_SIZE);
+  return len;
+}
+
+#ifdef HDR_HEAP_CHECKSUMS
+static uint32_t
+compute_checksum(void *buf, int len)
+{
+  uint32_t cksum = 0;
+
+  while (len > 4) {
+    cksum += *((uint32_t *) buf);
+    buf = ((char *) buf) + 4;
+    len -= 4;
+  }
+
+  if (len > 0) {
+    uint32_t tmp = 0;
+    memcpy((char *) &tmp, buf, len);
+    cksum += tmp;
+  }
+
+  return cksum;
+}
+#endif
+
+
+// int HdrHeap::marshal(char* buf, int len)
+//
+//   Creates a marshalled representation of the contents
+//     of HdrHeap.  The marshalled representation is ususable
+//     as a read-only HdrHeap after an unmarshal operation which
+//     only swizzles offsets to pointer.  Special care needs to be
+//     taken not to mess up the alignment of objects in
+//     the heap to make this representation usable in the read-only
+//     form
+//
+int
+HdrHeap::marshal(char *buf, int len)
+{
+  ink_assert((((uintptr_t) buf) & HDR_PTR_ALIGNMENT_MASK) == 0);
+
+  HdrHeap *marshal_hdr = (HdrHeap *) buf;
+  char *b = buf + HDR_HEAP_HDR_SIZE;
+
+  // Variables for the ptr translation table
+  int ptr_xl_size = 2;
+  MarshalXlate static_table[2];
+  MarshalXlate *ptr_xlation = static_table;
+
+  // Let's start by skipping over the header block
+  //  and copying the pointer blocks to marshalled
+  //  buffer
+  int ptr_heap_size = 0;
+  int str_size = 0;
+  int ptr_heaps = 0;
+  int str_heaps = 0;
+
+  // Variables used later on.  Sunpro doesn't like
+  //   bypassing initializations with gotos
+  int used;
+  int i;
+
+  HdrHeap *unmarshal_hdr = this;
+
+  do {
+    int copy_size = (int) (unmarshal_hdr->m_free_start - unmarshal_hdr->m_data_start);
+
+    if (copy_size > len) {
+      goto Failed;
+    }
+    memcpy(b, unmarshal_hdr->m_data_start, copy_size);
+
+    // Expand ptr xlation table if necessary - shameless hackery
+    if (ptr_heaps >= ptr_xl_size) {
+      MarshalXlate *tmp_xl = (MarshalXlate *) alloca(sizeof(MarshalXlate) * ptr_xl_size * 2);
+      memcpy(tmp_xl, ptr_xlation, sizeof(MarshalXlate) * ptr_xl_size);
+      ptr_xlation = tmp_xl;
+      ptr_xl_size *= 2;
+    }
+    // Add translation table entry for pointer heaps
+    //   FIX ME - possible offset overflow issues?
+    ptr_xlation[ptr_heaps].start = unmarshal_hdr->m_data_start;
+    ptr_xlation[ptr_heaps].end = unmarshal_hdr->m_free_start;
+    ptr_xlation[ptr_heaps].offset = unmarshal_hdr->m_data_start - (b - buf);
+
+    ptr_heap_size += copy_size;
+    b += copy_size;
+    len -= copy_size;
+    ptr_heaps++;
+
+    unmarshal_hdr = unmarshal_hdr->m_next;
+  } while (unmarshal_hdr);
+
+  // Now that we've got the pointer blocks marshaled
+  //  we can fill in the header on marshalled block
+  marshal_hdr->m_free_start = NULL;
+  marshal_hdr->m_data_start = (char *) HDR_HEAP_HDR_SIZE;       // offset
+  marshal_hdr->m_magic = HDR_BUF_MAGIC_MARSHALED;
+  marshal_hdr->m_writeable = false;
+  marshal_hdr->m_size = ptr_heap_size + HDR_HEAP_HDR_SIZE;
+  marshal_hdr->m_next = NULL;
+  marshal_hdr->m_free_size = 0;
+  marshal_hdr->m_read_write_heap.m_ptr = NULL;
+  marshal_hdr->m_lost_string_space = this->m_lost_string_space;
+
+  // We'have one read-only string heap after marshalling
+  marshal_hdr->m_ronly_heap[0].m_heap_start = (char *)(intptr_t)marshal_hdr->m_size;     // offset
+  marshal_hdr->m_ronly_heap[0].m_ref_count_ptr.m_ptr = NULL;
+
+  for (int i = 1; i < HDR_BUF_RONLY_HEAPS; i++)
+    marshal_hdr->m_ronly_heap[i].m_heap_start = NULL;
+
+  // Next order of business is to copy over string heaps
+  //   As we are copying over the string heaps, build
+  //   translation table for string marshaling in the heap
+  //   objects
+  //
+  // FIX ME - really ought to check to see if lost_string_space
+  //   is too big and only copy over live strings if it is.  May
+  //   not be too much of a problem since I've prevented too much
+  //   lost string space both in string alloc and inherit
+  MarshalXlate str_xlation[HDR_BUF_RONLY_HEAPS + 1];
+
+  if (m_read_write_heap) {
+    char *copy_start = ((char *) m_read_write_heap.m_ptr) + sizeof(HdrStrHeap);
+    int nto_copy = m_read_write_heap->m_heap_size - (sizeof(HdrStrHeap) + m_read_write_heap->m_free_size);
+
+    if (nto_copy > len) {
+      goto Failed;
+    }
+
+    memcpy(b, copy_start, nto_copy);
+
+    // FIX ME - possible offset overflow issues?
+    str_xlation[str_heaps].start = copy_start;
+    str_xlation[str_heaps].end = copy_start + nto_copy;
+    str_xlation[str_heaps].offset = copy_start - (b - buf);
+
+    b += nto_copy;
+    len -= nto_copy;
+    str_size += nto_copy;
+    str_heaps++;
+  }
+
+  for (i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+    if (m_ronly_heap[i].m_heap_start != NULL) {
+      if (m_ronly_heap[i].m_heap_len > len) {
+        goto Failed;
+      }
+
+      memcpy(b, m_ronly_heap[i].m_heap_start, m_ronly_heap[i].m_heap_len);
+
+      // Add translation table entry for string heaps
+      //   FIX ME - possible offset overflow issues?
+      str_xlation[str_heaps].start = m_ronly_heap[i].m_heap_start;
+      str_xlation[str_heaps].end = m_ronly_heap[i].m_heap_start + m_ronly_heap[i].m_heap_len;
+      str_xlation[str_heaps].offset = str_xlation[str_heaps].start - (b - buf);
+      ink_assert(str_xlation[str_heaps].start <= str_xlation[str_heaps].end);
+
+      str_heaps++;
+      b += m_ronly_heap[i].m_heap_len;
+      len -= m_ronly_heap[i].m_heap_len;
+      str_size += m_ronly_heap[i].m_heap_len;
+    }
+  }
+
+  // Patch the str heap len
+  marshal_hdr->m_ronly_heap[0].m_heap_len = str_size;
+
+  // Take our translation tables and loop over the objects
+  //    and call the object marshal function to patch live
+  //    strings pointers & live object pointers to offsets
+  {
+    char *obj_data = ((char *) marshal_hdr) + HDR_HEAP_HDR_SIZE;
+    char *mheap_end = ((char *) marshal_hdr) + marshal_hdr->m_size;
+
+    while (obj_data < mheap_end) {
+      HdrHeapObjImpl *obj = (HdrHeapObjImpl *) obj_data;
+      ink_assert(obj_is_aligned(obj));
+
+      switch (obj->m_type) {
+      case HDR_HEAP_OBJ_URL:
+        if (((URLImpl *) obj)->marshal(str_xlation, str_heaps) < 0) {
+          goto Failed;
+        }
+        break;
+      case HDR_HEAP_OBJ_HTTP_HEADER:
+        if (((HTTPHdrImpl *) obj)->marshal(ptr_xlation, ptr_heaps, str_xlation, str_heaps) < 0) {
+          goto Failed;
+        }
+        break;
+      case HDR_HEAP_OBJ_FIELD_BLOCK:
+        if (((MIMEFieldBlockImpl *) obj)->marshal(ptr_xlation, ptr_heaps, str_xlation, str_heaps) < 0) {
+          goto Failed;
+        }
+        break;
+      case HDR_HEAP_OBJ_MIME_HEADER:
+        if (((MIMEHdrImpl *) obj)->marshal(ptr_xlation, ptr_heaps, str_xlation, str_heaps)) {
+          goto Failed;
+        }
+        break;
+      case HDR_HEAP_OBJ_EMPTY:
+      case HDR_HEAP_OBJ_RAW:
+        // Check to make sure we aren't stuck
+        //   in an infinite loop
+        if (obj->m_length <= 0) {
+          ink_assert(0);
+          goto Failed;
+        }
+        // Nothing to do
+        break;
+      default:
+        ink_release_assert(0);
+      }
+
+      obj_data = obj_data + obj->m_length;
+    }
+  }
+
+  // Add up the total bytes used
+  used = ptr_heap_size + str_size + HDR_HEAP_HDR_SIZE;
+  used = ROUND(used, HDR_PTR_SIZE);
+
+#ifdef HDR_HEAP_CHECKSUMS
+  {
+    uint32_t chksum = compute_checksum(buf, used);
+    marshal_hdr->m_free_start = (char *) chksum;
+  }
+#endif
+
+  return used;
+
+Failed:
+  marshal_hdr->m_magic = HDR_BUF_MAGIC_CORRUPT;
+  return -1;
+}
+
+
+// bool HdrHeap::check_marshalled(char* buf, int buf_length) {
+//
+//   Takes in marshalled buffer and verifies whether stuff appears
+//     to be sane.  Returns true is sane.  Returns false if corrupt
+//
+bool
+HdrHeap::check_marshalled(uint32_t buf_length)
+{
+  if (this->m_magic != HDR_BUF_MAGIC_MARSHALED) {
+    return false;
+  }
+
+  if (this->m_size < (uint32_t) HDR_HEAP_HDR_SIZE) {
+    return false;
+  }
+
+  if (this->m_size != (uintptr_t) this->m_ronly_heap[0].m_heap_start) {
+    return false;
+  }
+
+  if ((uintptr_t) (this->m_size + m_ronly_heap[0].m_heap_start) > buf_length) {
+    return false;
+  }
+
+  if (this->m_writeable != false) {
+    return false;
+  }
+
+  if (this->m_free_size != 0) {
+    return false;
+  }
+
+  if (this->m_ronly_heap[0].m_heap_start == NULL) {
+    return false;
+  }
+
+  return true;
+}
+
+// int HdrHeap::unmarshal(int buf_length, int obj_type,
+//                       HdrHeapObjImpl** found_obj,
+//                       RefCountObj* block_ref) {
+//
+//   Takes a marshalled representation and swizzles offsets
+//     so they become live pointers and make the heap usable.
+//     Sets *found_obj to first occurance of object of
+//     type obj_type in the heap
+//
+//   Return value is the number of bytes unmarshalled or -1
+//     if error.  Caller is responsible for memory
+//     management policy
+//
+int
+HdrHeap::unmarshal(int buf_length, int obj_type, HdrHeapObjImpl ** found_obj, RefCountObj * block_ref)
+{
+  bool obj_found = false;
+
+  // Check out this heap and make sure it is OK
+  if (m_magic != HDR_BUF_MAGIC_MARSHALED) {
+    ink_assert(!"HdrHeap::unmarshal bad magic");
+    return -1;
+  }
+
+  int unmarshal_size = m_size + m_ronly_heap[0].m_heap_len;
+  if (unmarshal_size > buf_length) {
+    ink_assert(!"HdrHeap::unmarshal truncated header");
+    return -1;
+  }
+#ifdef HDR_HEAP_CHECKSUMS
+  if (m_free_start != NULL) {
+    uint32_t stored_sum = (uint32_t) m_free_start;
+    m_free_start = NULL;
+    int sum_len = ROUND(unmarshal_size, HDR_PTR_SIZE);
+    uint32_t new_sum = compute_checksum((void *) this, sum_len);
+
+    if (stored_sum != new_sum) {
+      fprintf(stderr, "WARNING: Unmarshal checksum comparison failed\n");
+      dump_heap(unmarshal_size);
+      ink_assert(!"HdrHeap::unmarshal checksum failure");
+      return -1;
+    }
+  }
+#else
+  // Because checksums could have been enabled in the past
+  //   and then be turned off without clearing the cache,
+  //   always reset our variable we use for checksumming
+  m_free_start = NULL;
+#endif
+
+  ink_release_assert(m_writeable == false);
+  ink_release_assert(m_free_size == 0);
+  ink_release_assert(m_ronly_heap[0].m_heap_start != NULL);
+
+  ink_assert(m_free_start == NULL);
+
+  // Convert Heap offsets to pointers
+  m_data_start = ((char *) this) + (intptr_t) m_data_start;
+  m_free_start = ((char *) this) + m_size;
+  m_ronly_heap[0].m_heap_start = ((char *) this) + (intptr_t) m_ronly_heap[0].m_heap_start;
+
+  // Crazy Invarient - If we are sitting in a ref counted block,
+  //   the HdrHeap lifetime is externally determined.  Whoever
+  //   unmarshalls us should keep the block around as long as
+  //   they want to use the header.  However, the strings can
+  //   live beyond the heap life time because they are copied
+  //   by reference into other header heap therefore we need
+  //   to the set the refcount ptr for the strings.  We don't
+  //   actually increase the refcount here since for the header
+  //   the lifetime is explicit but copies will increase
+  //   the refcount
+  if (block_ref) {
+    m_ronly_heap[0].m_ref_count_ptr.m_ptr = block_ref;
+  }
+  // Loop over objects and swizzle there pointer to
+  //  live offsets
+  char *obj_data = m_data_start;
+  intptr_t offset = (intptr_t) this;
+
+  while (obj_data < m_free_start) {
+    HdrHeapObjImpl *obj = (HdrHeapObjImpl *) obj_data;
+    ink_assert(obj_is_aligned(obj));
+
+    if (obj->m_type == (unsigned) obj_type && obj_found == false) {
+      *found_obj = obj;
+    }
+
+    switch (obj->m_type) {
+    case HDR_HEAP_OBJ_HTTP_HEADER:
+      ((HTTPHdrImpl *) obj)->unmarshal(offset);
+      break;
+    case HDR_HEAP_OBJ_URL:
+      ((URLImpl *) obj)->unmarshal(offset);
+      break;
+    case HDR_HEAP_OBJ_FIELD_BLOCK:
+      ((MIMEFieldBlockImpl *) obj)->unmarshal(offset);
+      break;
+    case HDR_HEAP_OBJ_MIME_HEADER:
+      ((MIMEHdrImpl *) obj)->unmarshal(offset);
+      break;
+    case HDR_HEAP_OBJ_EMPTY:
+      // Nothing to do
+      break;
+    default:
+      fprintf(stderr,
+              "WARNING: Unmarshal failed due to unknow obj type %d after %d bytes",
+              (int) obj->m_type, (int)(obj_data - (char *) this));
+      dump_heap(unmarshal_size);
+      return -1;
+    }
+
+    obj_data = obj_data + obj->m_length;
+  }
+
+  m_magic = HDR_BUF_MAGIC_ALIVE;
+
+  unmarshal_size = ROUND(unmarshal_size, HDR_PTR_SIZE);
+  return unmarshal_size;
+}
+
+inline int
+HdrHeap::attach_str_heap(char *h_start, int h_len, RefCountObj * h_ref_obj, int *index)
+{
+  // Loop over existing entries to see if this one is already present
+  for (int z = 0; z < *index; z++) {
+    if (m_ronly_heap[z].m_heap_start == h_start) {
+      ink_assert(m_ronly_heap[z].m_ref_count_ptr._ptr() == h_ref_obj);
+
+      // The lengths could be different because our copy could be
+      //   read-only and the copy we are attaching from could be
+      //   read-write and have expanded since the last time
+      //   to was attached
+      if (h_len > m_ronly_heap[z].m_heap_len)
+        m_ronly_heap[z].m_heap_len = h_len;
+      return 1;
+    }
+  }
+
+  if (*index >= HDR_BUF_RONLY_HEAPS) {
+    return 0;
+  }
+
+  m_ronly_heap[*index].m_ref_count_ptr = h_ref_obj;
+  m_ronly_heap[*index].m_heap_start = h_start;
+  m_ronly_heap[*index].m_heap_len = h_len;
+  m_ronly_heap[*index].m_locked = false;
+  *index = *index + 1;
+
+  return 1;
+}
+
+
+// void HdrHeap::inhertit_string_heaps(const HdrHeap* inherit_from)
+//
+//    Inherits all of inherit_from's string heaps as read-only
+//     string heaps
+//
+void
+HdrHeap::inherit_string_heaps(const HdrHeap * inherit_from)
+{
+  // if heaps are the same, this is a no-op
+  if (inherit_from == (const HdrHeap *) this)
+    return;
+
+  int index, result;
+  int first_free = HDR_BUF_RONLY_HEAPS; // default is out of array bounds
+  int free_slots = 0;
+  int inherit_str_size = 0;
+  ink_assert(m_writeable);
+
+  // Find the number of free heap slots & the first open index
+  for (index = 0; index < HDR_BUF_RONLY_HEAPS; index++) {
+    if (m_ronly_heap[index].m_heap_start == NULL) {
+      if (first_free == HDR_BUF_RONLY_HEAPS) {
+        first_free = index;
+      }
+      free_slots++;
+    }
+  }
+
+  // Find out if we have enough slots
+  if (inherit_from->m_read_write_heap) {
+    free_slots--;
+    inherit_str_size = inherit_from->m_read_write_heap->m_heap_size;
+  }
+  for (index = 0; index < HDR_BUF_RONLY_HEAPS; index++) {
+    if (inherit_from->m_ronly_heap[index].m_heap_start != NULL) {
+      free_slots--;
+      inherit_str_size += inherit_from->m_ronly_heap[index].m_heap_len;
+    } else {
+      // Heaps are allocated from the front of the array, so if
+      //  we hit a NULL, we know we can stop
+      break;
+    }
+  }
+
+  // Find out if we are building up too much lost space
+  int new_lost_space = m_lost_string_space + inherit_from->m_lost_string_space;
+
+  if (free_slots < 0 || new_lost_space > (int)MAX_LOST_STR_SPACE) {
+    // Not enough free slots.  We need to force a coalesce of
+    //  string heaps for both old heaps and the inherited from heaps.
+    // Coalesce can't know the inherited str size so we pass it
+    //  it in so that it can allocate a new read-write string heap
+    //  large enough (INKqa07513).
+    // INVARIENT: inherit_str_heaps can only be called after
+    //  all the objects the callee wants to inherit strings for
+    //  are put into the heap
+    coalesce_str_heaps(inherit_str_size);
+  } else {
+    // Copy over read/write string heap if it exists
+    if (inherit_from->m_read_write_heap) {
+      int str_size = inherit_from->m_read_write_heap->m_heap_size -
+        STR_HEAP_HDR_SIZE - inherit_from->m_read_write_heap->m_free_size;
+      result = attach_str_heap(((char *) inherit_from->m_read_write_heap.m_ptr) + STR_HEAP_HDR_SIZE,
+                               str_size, inherit_from->m_read_write_heap, &first_free);
+      ink_release_assert(result != 0);
+    }
+    // Copy over read only string heaps
+    for (int i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+      if (inherit_from->m_ronly_heap[i].m_heap_start) {
+        result = attach_str_heap(inherit_from->m_ronly_heap[i].m_heap_start,
+                                 inherit_from->m_ronly_heap[i].m_heap_len,
+                                 inherit_from->m_ronly_heap[i].m_ref_count_ptr.m_ptr, &first_free);
+        ink_release_assert(result != 0);
+      }
+    }
+
+    m_lost_string_space += inherit_from->m_lost_string_space;
+  }
+
+  return;
+}
+
+// void HdrHeap::dump_heap(int len)
+//
+//   Debugging function to dump the heap in hex
+void
+HdrHeap::dump_heap(int len)
+{
+  int count = 0;
+  char *tmp = (char *) this;
+  char *end;
+  uint32_t content;
+
+  if (len < 0) {
+    len = m_size;
+  }
+  end = ((char *) this) + len;
+
+  fprintf(stderr, "---- Dumping header heap @ 0x%" PRIx64 " - len %d ------", (uint64_t) ((ptrdiff_t) this), len);
+
+  while (tmp < end) {
+    if (count % 4 == 0) {
+      fprintf(stderr, "\n0x%" PRIx64 ": ", (uint64_t) ((ptrdiff_t) tmp));
+    }
+    count++;
+
+    // Load the content
+    if (end - tmp > 4) {
+      content = *((uint32_t *) tmp);
+    } else {
+      // Less than 4 bytes available so just
+      //   grab the bytes we need
+      content = 0;
+      memcpy(&content, tmp, (end - tmp));
+    }
+
+    fprintf(stderr, "0x%x ", content);
+    tmp += 4;
+  }
+
+  fprintf(stderr, "\n-------------- End header heap dump -----------\n");
+}
+
+
+void
+HdrStrHeap::free()
+{
+  if (m_heap_size == HDR_STR_HEAP_DEFAULT_SIZE) {
+    THREAD_FREE(this, strHeapAllocator, this_thread());
+  } else {
+    ats_free(this);
+  }
+}
+
+// char* HdrStrHeap::allocate(int nbytes)
+//
+//   Allocates nbytes from the str heap
+//   Return NULL on allocation failure
+//
+char *
+HdrStrHeap::allocate(int nbytes)
+{
+  char *new_space;
+
+  if (m_free_size >= (unsigned) nbytes) {
+    new_space = m_free_start;
+    m_free_start += nbytes;
+    m_free_size -= nbytes;
+    return new_space;
+  } else {
+    return NULL;
+  }
+}
+
+// char* HdrStrHeap::expand(char* ptr, int old_size, int new_size)
+//
+//   Try to expand str in the heap.  If we succeed to
+//     we return ptr, otherwise we return NULL
+//
+char *
+HdrStrHeap::expand(char *ptr, int old_size, int new_size)
+{
+  unsigned int expand_size = new_size - old_size;
+
+  ink_assert(ptr >= ((char *) this) + STR_HEAP_HDR_SIZE);
+  ink_assert(ptr < ((char *) this) + m_heap_size);
+
+  if (ptr + old_size == m_free_start && expand_size <= m_free_size) {
+    m_free_start += expand_size;
+    m_free_size -= expand_size;
+    return ptr;
+  } else {
+    return NULL;
+  }
+}
+
+
+
+StrHeapDesc::StrHeapDesc()
+{
+  m_heap_start = NULL;
+  m_heap_len = 0;
+  m_locked = false;
+}
+
+struct StrTest
+{
+  char *ptr;
+  int len;
+};
+
+#if TS_HAS_TESTS
+#include <ts/TestBox.h>
+REGRESSION_TEST(HdrHeap_Coalesce)(RegressionTest* t, int /* atype ATS_UNUSED */, int*  pstatus) {
+  *pstatus = REGRESSION_TEST_PASSED;
+  /*
+   * This test is designed to test numerous pieces of the HdrHeaps including allocations,
+   * demotion of rw heaps to ronly heaps, and finally the coalesce and evacuate behaviours.
+   */
+
+  // The amount of space we will need to overflow the StrHdrHeap is HDR_STR_HEAP_DEFAULT_SIZE - STR_HEAP_HDR_SIZE
+  size_t next_rw_heap_size = HDR_STR_HEAP_DEFAULT_SIZE;
+  size_t next_required_overflow_size = next_rw_heap_size - STR_HEAP_HDR_SIZE;
+  char buf[next_required_overflow_size];
+  for(unsigned int i = 0; i < sizeof(buf); ++i) {
+    buf[i] = ('a' + (i % 26));
+  }
+
+  TestBox tb(t, pstatus);
+  HdrHeap *heap = new_HdrHeap();
+  URLImpl *url = url_create(heap);
+
+  tb.check(heap->m_read_write_heap.m_ptr == NULL, "Checking that we have no rw heap.");
+  url_path_set(heap,url, buf, next_required_overflow_size, true);
+  tb.check(heap->m_read_write_heap->m_free_size == 0, "Checking that we've completely consumed the rw heap");
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; ++i) {
+    tb.check(heap->m_ronly_heap[i].m_heap_start == (char*)NULL, "Checking ronly_heap[%d] is NULL", i);
+  }
+
+  // Now we have no ronly heaps in use and a completely full rwheap, so we will test that
+  // we demote to ronly heaps HDR_BUF_RONLY_HEAPS times.
+  for (int ronly_heap = 0; ronly_heap < HDR_BUF_RONLY_HEAPS; ++ronly_heap) {
+    next_rw_heap_size = 2 * heap->m_read_write_heap->m_heap_size;
+    next_required_overflow_size = next_rw_heap_size - STR_HEAP_HDR_SIZE;
+    char buf2[next_required_overflow_size];
+    for(unsigned int i = 0; i < sizeof(buf2); ++i) {
+      buf2[i] = ('a' + (i % 26));
+    }
+
+    URLImpl *url2 = url_create(heap);
+    url_path_set(heap,url2,buf2,next_required_overflow_size, true);
+
+    tb.check(heap->m_read_write_heap->m_heap_size == (uint32_t)next_rw_heap_size, "Checking the current rw heap is %d bytes", next_rw_heap_size);
+    tb.check(heap->m_read_write_heap->m_free_size == 0, "Checking that we've completely consumed the rw heap");
+    tb.check(heap->m_ronly_heap[ronly_heap].m_heap_start != NULL, "Checking that we properly demoted the previous rw heap");
+    for (int i = ronly_heap + 1; i < HDR_BUF_RONLY_HEAPS; ++i) {
+      tb.check(heap->m_ronly_heap[i].m_heap_start == NULL, "Checking ronly_heap[%d] is NULL", i);
+    }
+  }
+
+  // We will rerun these checks after we introduce a non-copied string to make sure we didn't already coalesce
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; ++i) {
+    tb.check(heap->m_ronly_heap[i].m_heap_start != (char*)NULL, "Pre non-copied string: Checking ronly_heap[%d] is NOT NULL", i);
+  }
+
+  // Now if we add a url object that contains only non-copied strings it shouldn't affect the size of the rwheap
+  // since it doesn't require allocating any storage on this heap.
+  char buf3[next_required_overflow_size];
+  for(unsigned int i = 0; i < sizeof(buf); ++i) {
+    buf3[i] = ('a' + (i % 26));
+  }
+
+  URLImpl *aliased_str_url = url_create(heap);
+  url_path_set(heap, aliased_str_url, buf3, next_required_overflow_size, false); // don't copy this string
+  tb.check(aliased_str_url->m_len_path == next_required_overflow_size, "Checking that the aliased string shows having proper length");
+  tb.check(aliased_str_url->m_ptr_path == buf3, "Checking that the aliased string is correctly pointing at buf");
+
+
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; ++i) {
+    tb.check(heap->m_ronly_heap[i].m_heap_start != (char*)NULL, "Post non-copied string: Checking ronly_heap[%d] is NOT NULL", i);
+  }
+  tb.check(heap->m_read_write_heap->m_free_size == 0, "Checking that we've completely consumed the rw heap");
+  tb.check(heap->m_next == NULL, "Checking that we dont have any chained heaps");
+
+  // Now at this point we have a completely full rw_heap and no ronly heap slots, so any allocation would have to result
+  // in a coalesce, and to validate that we don't reintroduce TS-2766 we have an aliased string, so when it tries to
+  // coalesce it used to sum up the size of the ronly heaps and the rw heap which is incorrect because we never
+  // copied the above string onto the heap. The new behaviour fixed in TS-2766 will make sure that this non copied
+  // string is accounted for, in the old implementation it would result in an allocation failure.
+
+
+  char *str = heap->allocate_str(1); // this will force a coalese.
+  tb.check(str != NULL, "Checking that 1 byte allocated string is not NULL");
+
+  // Now we need to validate that aliased_str_url has a path that isn't NULL, if it's NULL then the
+  // coalesce is broken and didn't properly determine the size, if it's not null then everything worked as expected.
+  tb.check(aliased_str_url->m_len_path == next_required_overflow_size, "Checking that the aliased string shows having proper length");
+  tb.check(aliased_str_url->m_ptr_path != NULL, "Checking that the aliased string was properly moved during coalsece and evacuation");
+  tb.check(aliased_str_url->m_ptr_path != buf3, "Checking that the aliased string was properly moved during coalsece and evacuation (not pointing at buf3)");
+
+  // Clean up
+  heap->destroy();
+}
+#endif
diff --git a/proxy/hdrs/HdrHeap.h b/proxy/hdrs/HdrHeap.h
new file mode 100644
index 00000000..07d681b7
--- /dev/null
+++ b/proxy/hdrs/HdrHeap.h
@@ -0,0 +1,494 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrHeap.h
+
+   Description:
+
+
+ ****************************************************************************/
+
+#ifndef _HDR_HEAP_H_
+#define _HDR_HEAP_H_
+
+#include "Ptr.h"
+#include "ink_defs.h"
+#include "ink_assert.h"
+#include "Arena.h"
+#include "HdrToken.h"
+
+// Objects in the heap must currently be aligned to 8 byte boundaries,
+// so their (address & HDR_PTR_ALIGNMENT_MASK) == 0
+
+#define HDR_PTR_SIZE		(sizeof(uint64_t))
+#define	HDR_PTR_ALIGNMENT_MASK	((HDR_PTR_SIZE) - 1L)
+
+#define ROUND(x,l)  (((x) + ((l) - 1L)) & ~((l) - 1L))
+
+// A many of the operations regarding read-only str
+//  heaps are hand unrolled in the code.  Chaning
+//  this value requires a full pass through HdrBuf.cc
+//  to fix the unrolled operations
+#define HDR_BUF_RONLY_HEAPS   3 
+
+#define HDR_HEAP_DEFAULT_SIZE   2048
+#define HDR_STR_HEAP_DEFAULT_SIZE  2048 
+
+#define HDR_MAX_ALLOC_SIZE (HDR_HEAP_DEFAULT_SIZE - sizeof(HdrHeap))
+#define HDR_HEAP_HDR_SIZE ROUND(sizeof(HdrHeap), HDR_PTR_SIZE)
+#define STR_HEAP_HDR_SIZE sizeof(HdrStrHeap)
+
+enum
+{
+  HDR_HEAP_OBJ_EMPTY = 0,
+  HDR_HEAP_OBJ_RAW = 1,
+  HDR_HEAP_OBJ_URL = 2,
+  HDR_HEAP_OBJ_HTTP_HEADER = 3,
+  HDR_HEAP_OBJ_MIME_HEADER = 4,
+  HDR_HEAP_OBJ_FIELD_BLOCK = 5,
+  HDR_HEAP_OBJ_FIELD_STANDALONE = 6,    // not a type that lives in HdrHeaps
+  HDR_HEAP_OBJ_FIELD_SDK_HANDLE = 7,    // not a type that lives in HdrHeaps
+
+  HDR_HEAP_OBJ_MAGIC = 0x0FEEB1E0
+};
+
+struct HdrHeapObjImpl
+{
+  uint32_t m_type:8;
+  uint32_t m_length:20;
+  uint32_t m_obj_flags:4;
+};
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+extern void obj_describe(HdrHeapObjImpl * obj, bool recurse);
+
+inline int
+obj_is_aligned(HdrHeapObjImpl * obj)
+{
+  return (((((uintptr_t) obj) & HDR_PTR_ALIGNMENT_MASK) == 0) && ((obj->m_length & HDR_PTR_ALIGNMENT_MASK) == 0));
+}
+
+inline void
+obj_clear_data(HdrHeapObjImpl * obj)
+{
+  char *ptr = (char *) obj;
+  int hdr_length = sizeof(HdrHeapObjImpl);
+  memset(ptr + hdr_length, '\0', obj->m_length - hdr_length);
+}
+
+inline void
+obj_copy_data(HdrHeapObjImpl * s_obj, HdrHeapObjImpl * d_obj)
+{
+  char *src, *dst;
+
+  ink_assert((s_obj->m_length == d_obj->m_length) && (s_obj->m_type == d_obj->m_type));
+
+  int hdr_length = sizeof(HdrHeapObjImpl);
+  src = (char *) s_obj + hdr_length;
+  dst = (char *) d_obj + hdr_length;
+  memcpy(dst, src, d_obj->m_length - hdr_length);
+}
+
+inline void
+obj_copy(HdrHeapObjImpl * s_obj, char *d_addr)
+{
+  memcpy(d_addr, (char *) s_obj, s_obj->m_length);
+}
+
+inline void
+obj_init_header(HdrHeapObjImpl * obj, uint32_t type, uint32_t nbytes, uint32_t obj_flags)
+{
+  obj->m_type = type;
+  obj->m_length = nbytes;
+  obj->m_obj_flags = obj_flags;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+enum
+{
+  HDR_BUF_MAGIC_ALIVE = 0xabcdfeed,
+  HDR_BUF_MAGIC_MARSHALED = 0xdcbafeed,
+  HDR_BUF_MAGIC_DEAD = 0xabcddead,
+  HDR_BUF_MAGIC_CORRUPT = 0xbadbadcc
+};
+
+struct StrHeapDesc
+{
+  StrHeapDesc();
+  Ptr<RefCountObj> m_ref_count_ptr;
+  char *m_heap_start;
+  int32_t m_heap_len;
+  bool m_locked;
+
+  bool contains(const char *str) const
+  {
+    return (str >= m_heap_start && str < (m_heap_start + m_heap_len));
+  }
+};
+
+
+class IOBufferBlock;
+
+class HdrStrHeap:public RefCountObj
+{
+public:
+
+  virtual void free();
+
+  char *allocate(int nbytes);
+  char *expand(char *ptr, int old_size, int new_size);
+  int space_avail();
+
+  uint32_t m_heap_size;
+  char *m_free_start;
+  uint32_t m_free_size;
+
+  bool contains(const char *str) const
+  {
+    return (str >= ((const char*)this + STR_HEAP_HDR_SIZE) && str < ((const char*)this + m_heap_size));
+  }
+};
+
+class CoreUtils;
+
+class HdrHeap
+{
+  friend class CoreUtils;
+public:
+  void init();
+  inkcoreapi void destroy();
+
+  // PtrHeap allocation
+  HdrHeapObjImpl *allocate_obj(int nbytes, int type);
+  void deallocate_obj(HdrHeapObjImpl * obj);
+
+  // StrHeap allocation
+  char *allocate_str(int nbytes);
+  char *expand_str(const char *old_str, int old_len, int new_len);
+  char *duplicate_str(const char *str, int nbytes);
+  void free_string(const char *s, int len);
+
+  // Marshalling
+  inkcoreapi int marshal_length();
+  inkcoreapi int marshal(char *buf, int length);
+  int unmarshal(int buf_length, int obj_type, HdrHeapObjImpl ** found_obj, RefCountObj * block_ref);
+
+  void inherit_string_heaps(const HdrHeap * inherit_from);
+  int attach_block(IOBufferBlock * b, const char *use_start);
+  void set_ronly_str_heap_end(int slot, const char *end);
+
+  // Lock read only str heaps so that can't be moved around
+  //  by a heap consolidation.  Does NOT lock for Multi-Threaed
+  //  access!
+  void lock_ronly_str_heap(int i)
+  {
+    m_ronly_heap[i].m_locked = true;
+  };
+  void unlock_ronly_str_heap(int i)
+  {
+    m_ronly_heap[i].m_locked = false;
+    // INKqa11238
+    // Move slot i to the first available slot in m_ronly_heap[].
+    // The move is necessary because the rest of the code assumes
+    // heaps are always allocated in order.
+    for (int j = 0; j < i; j++) {
+      if (m_ronly_heap[j].m_heap_start == NULL) {
+        // move slot i to slot j
+        m_ronly_heap[j].m_ref_count_ptr = m_ronly_heap[i].m_ref_count_ptr;
+        m_ronly_heap[j].m_heap_start = m_ronly_heap[i].m_heap_start;
+        m_ronly_heap[j].m_heap_len = m_ronly_heap[i].m_heap_len;
+        m_ronly_heap[j].m_locked = m_ronly_heap[i].m_locked;
+        m_ronly_heap[i].m_ref_count_ptr = NULL;
+        m_ronly_heap[i].m_heap_start = NULL;
+        m_ronly_heap[i].m_heap_len = 0;
+        m_ronly_heap[i].m_locked = false;
+      }
+    }
+  };
+
+  // Sanity Check Functions
+  void sanity_check_strs();
+  bool check_marshalled(uint32_t buf_length);
+
+  // Debugging functions
+  void dump_heap(int len = -1);
+
+  uint32_t m_magic;
+  char *m_free_start;
+  char *m_data_start;
+  uint32_t m_size;
+
+  bool m_writeable;
+
+  // Overflow block ptr
+  //   Overflow blocks are necessary because we can
+  //     run out of space in the header heap and the
+  //     heap is not rellocatable
+  //   Overflow blocks have the HdrHeap full structure
+  //    header on them, although only first block can
+  //    point to string heaps
+  HdrHeap *m_next;
+
+  // HdrBuf heap pointers
+  uint32_t m_free_size;
+
+  int demote_rw_str_heap();
+  void coalesce_str_heaps(int incoming_size = 0);
+  void evacuate_from_str_heaps(HdrStrHeap * new_heap);
+  size_t required_space_for_evacuation();
+  int attach_str_heap(char *h_start, int h_len, RefCountObj * h_ref_obj, int *index);
+
+  /** Struct to prevent garbage collection on heaps.
+      This bumps the reference count to the heap containing the pointer
+      while the instance of this class exists. When it goes out of scope
+      the reference is dropped. This is useful inside a method or block
+      to keep the required heap data around until leaving the scope.
+  */
+  struct HeapGuard {
+    /// Construct the protection.
+    HeapGuard(HdrHeap* heap, const char *str)
+    {
+      if (heap->m_read_write_heap && heap->m_read_write_heap->contains(str)) {
+        m_ptr = heap->m_read_write_heap;
+      } else {
+        for (int i=0; i < HDR_BUF_RONLY_HEAPS; ++i) {
+          if (heap->m_ronly_heap[i].contains(str)) {
+            m_ptr = heap->m_ronly_heap[i].m_ref_count_ptr;
+            break;
+          }
+        }
+      }
+    }
+
+    // There's no need to have a destructor here, the default dtor will take care of
+    // releaseing the (potentially) locked heap.
+
+    /// The heap we protect (if any)
+    Ptr<RefCountObj> m_ptr;
+  };
+
+  // String Heap access
+  Ptr<HdrStrHeap> m_read_write_heap;
+  StrHeapDesc m_ronly_heap[HDR_BUF_RONLY_HEAPS];
+  int m_lost_string_space;
+};
+
+inline void
+HdrHeap::free_string(const char *s, int len)
+{
+  if (s && len > 0) {
+    m_lost_string_space += len;
+  }
+}
+
+
+//
+struct MarshalXlate
+{
+  char *start;
+  char *end;
+  char *offset;
+};
+
+struct HeapCheck
+{
+  char *start;
+  char *end;
+};
+
+
+// Nasty macro to do string marshalling
+#define HDR_MARSHAL_STR(ptr, table, nentries) \
+if (ptr) { \
+   int found = 0; \
+   for (int i = 0; i < nentries; i++) { \
+      if (ptr >= table[i].start && \
+	  ptr <= table[i].end) { \
+          ptr =  (((char*)ptr) - (uintptr_t) table[i].offset); \
+          found = 1; \
+          break; \
+      } \
+   } \
+   ink_assert(found); \
+   if (found == 0) { \
+     return -1; \
+   } \
+}
+
+// Nasty macro to do string marshalling
+#define HDR_MARSHAL_STR_1(ptr, table) \
+if (ptr) { \
+   int found = 0; \
+      if (ptr >= table[0].start && \
+	  ptr <= table[0].end) { \
+          ptr =  (((char*)ptr) - (uintptr_t) table[0].offset); \
+          found = 1; \
+      } \
+   ink_assert(found); \
+   if (found == 0) { \
+     return -1; \
+   } \
+}
+
+
+
+#define HDR_MARSHAL_PTR(ptr, type, table, nentries) \
+if (ptr) { \
+   int found = 0; \
+   for (int i = 0; i < nentries; i++) { \
+      if ((char*) ptr >= table[i].start && \
+	  (char*) ptr <= table[i].end) { \
+          ptr = (type *) (((char*)ptr) - (uintptr_t) table[i].offset); \
+          found = 1; \
+          break; \
+      } \
+   } \
+   ink_assert(found); \
+   if (found == 0) { \
+    return -1; \
+   } \
+}
+
+#define HDR_MARSHAL_PTR_1(ptr, type, table) \
+if (ptr) { \
+   int found = 0; \
+      if ((char*) ptr >= table[0].start && \
+	  (char*) ptr <= table[0].end) { \
+          ptr = (type *) (((char*)ptr) - (uintptr_t) table[0].offset); \
+          found = 1; \
+      } \
+   ink_assert(found); \
+   if (found == 0) { \
+    return -1; \
+   } \
+}
+
+
+
+
+#define HDR_UNMARSHAL_STR(ptr, offset) \
+if (ptr) { \
+  ptr = ((char*)ptr) + offset; \
+}
+
+#define HDR_UNMARSHAL_PTR(ptr, type, offset) \
+if (ptr) { \
+  ptr = (type *) (((char*)ptr) + offset); \
+}
+
+// Nasty macro to do string evacuation.  Assumes
+//   new heap = new_heap
+#define HDR_MOVE_STR(str, len) \
+{ \
+   if (str) { \
+     char* new_str = new_heap->allocate(len); \
+     if(new_str) \
+       memcpy(new_str, str, len); \
+     str = new_str; \
+   } \
+}
+
+// Nasty macro to do verify all strings it
+//   in attached heaps
+#define CHECK_STR(str, len, _heaps, _num_heaps) \
+{ \
+   if (str) { \
+     int found = 0; \
+     for (int i = 0; i < _num_heaps; i++) { \
+        if (str >= _heaps[i].start && \
+	    str + len <= heaps[i].end) { \
+            found = 1; \
+	} \
+     } \
+     ink_release_assert(found); \
+   } \
+}
+
+// struct HdrHeapSDKHandle()
+//
+//   Handle to a HdrHeap.
+//
+//   Intended to be subclassed and contain a
+//     object pointer that points into the heap
+//
+struct HdrHeapSDKHandle
+{
+public:
+  HdrHeapSDKHandle()
+    : m_heap(NULL)
+  { }
+
+  ~HdrHeapSDKHandle() { clear(); }
+
+  // clear() only deallocates chained SDK return values
+  //   The underlying MBuffer is left untouched
+  void clear();
+
+  // destroy() frees the underlying MBuffer and deallocates all chained
+  //    SDK return values
+  void destroy();
+
+  void set(const HdrHeapSDKHandle * from);
+  const char *make_sdk_string(const char *raw_str, int raw_str_len);
+
+  HdrHeap *m_heap;
+
+private:
+  // In order to prevent gratitous refcounting,
+  //  automatic C++ copies are disabled!
+    HdrHeapSDKHandle(const HdrHeapSDKHandle & r);
+    HdrHeapSDKHandle & operator =(const HdrHeapSDKHandle & r);
+};
+
+inline void
+HdrHeapSDKHandle::destroy()
+{
+  if (m_heap) {
+    m_heap->destroy();
+  }
+  clear();
+}
+
+inline void
+HdrHeapSDKHandle::clear()
+{
+  m_heap = NULL;
+}
+
+inline void
+HdrHeapSDKHandle::set(const HdrHeapSDKHandle * from)
+{
+  clear();
+  m_heap = from->m_heap;
+}
+
+inkcoreapi HdrHeap *new_HdrHeap(int size = HDR_HEAP_DEFAULT_SIZE);
+
+void hdr_heap_test();
+#endif
diff --git a/proxy/hdrs/HdrTSOnly.cc b/proxy/hdrs/HdrTSOnly.cc
new file mode 100644
index 00000000..ae7ae13d
--- /dev/null
+++ b/proxy/hdrs/HdrTSOnly.cc
@@ -0,0 +1,199 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrTSOnly.cc
+
+   Description:
+      IRIX compiler is rather annoying and likes to use symbols from inline
+        code that is not called in the file.  Thus to make our libhdrs.a
+        library link with traffic_manager and test_header, we can't
+        include IOBuffer.h in any file where the corresponding object file
+        gets linked in for these two targets.  Thus HdrTSOnly.cc is where
+        we put the functions that only traffic_server uses since they
+        need to know about IOBuffers.
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "HTTP.h"
+#include "P_EventSystem.h"
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+MIMEParseResult
+HTTPHdr::parse_req(HTTPParser * parser, IOBufferReader * r, int *bytes_used, bool eof)
+{
+
+  const char *start;
+  const char *tmp;
+  const char *end;
+  int used;
+
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_REQUEST);
+
+  MIMEParseResult state = PARSE_CONT;
+  *bytes_used = 0;
+
+
+  do {
+    int64_t b_avail = r->block_read_avail();
+
+    if (b_avail <= 0 && eof == false) {
+      break;
+    }
+
+    tmp = start = r->start();
+    end = start + b_avail;
+
+    int heap_slot = m_heap->attach_block(r->get_current_block(), start);
+
+    m_heap->lock_ronly_str_heap(heap_slot);
+    state = http_parser_parse_req(parser, m_heap, m_http, &tmp, end, false, eof);
+    m_heap->set_ronly_str_heap_end(heap_slot, tmp);
+    m_heap->unlock_ronly_str_heap(heap_slot);
+
+    used = (int) (tmp - start);
+    r->consume(used);
+    *bytes_used += used;
+
+  } while (state == PARSE_CONT);
+
+  return state;
+}
+
+MIMEParseResult
+HTTPHdr::parse_resp(HTTPParser * parser, IOBufferReader * r, int *bytes_used, bool eof)
+{
+  const char *start;
+  const char *tmp;
+  const char *end;
+  int used;
+
+  ink_assert(valid());
+  ink_assert(m_http->m_polarity == HTTP_TYPE_RESPONSE);
+
+  MIMEParseResult state = PARSE_CONT;
+  *bytes_used = 0;
+
+  do {
+    int64_t b_avail = r->block_read_avail();
+
+    if (b_avail <= 0 && eof == false) {
+      break;
+    }
+
+    tmp = start = r->start();
+    end = start + b_avail;
+
+    int heap_slot = m_heap->attach_block(r->get_current_block(), start);
+
+    m_heap->lock_ronly_str_heap(heap_slot);
+    state = http_parser_parse_resp(parser, m_heap, m_http, &tmp, end, false, eof);
+    m_heap->set_ronly_str_heap_end(heap_slot, tmp);
+    m_heap->unlock_ronly_str_heap(heap_slot);
+
+    used = (int) (tmp - start);
+    r->consume(used);
+    *bytes_used += used;
+
+  } while (state == PARSE_CONT);
+
+  return state;
+}
+
+// void HdrHeap::set_ronly_str_heap_end(int slot)
+//
+//    The end pointer is where the header parser stopped parsing
+//      so that we don't get extraneous space in the block
+//      that then has to get marshalled (INKqa07409)
+//
+//    NOTE: the shortening the block relies on the fact that
+//      IOBuffers are write once.  It's therefore not possible
+//      that a previous call actually used more the block than
+//      the current call which would mean we can't shorten the block
+//
+void
+HdrHeap::set_ronly_str_heap_end(int slot, const char *end)
+{
+  ink_assert(m_ronly_heap[slot].m_heap_start != NULL);
+  ink_assert(m_ronly_heap[slot].m_heap_start <= end);
+  ink_assert(end <= m_ronly_heap[slot].m_heap_start + m_ronly_heap[slot].m_heap_len);
+
+  m_ronly_heap[slot].m_heap_len = (int) (end - m_ronly_heap[slot].m_heap_start);
+}
+
+
+// void HdrHeap::attach_block(IOBufferBlock* b, const char* use_start)
+//
+//    Attachs data from an IOBuffer block to
+//      as a read-only string heap.  Looks through existing
+//      to expand an existing string heap entry if necessary
+//
+//    Because the block may contain data at the front of it that
+//      we don't want (and will end up getting marshalled)
+//      use_start specificies where we start using the block (INKqa07409)
+//
+int
+HdrHeap::attach_block(IOBufferBlock * b, const char *use_start)
+{
+
+  ink_assert(m_writeable);
+
+RETRY:
+
+  // It's my contention that since heaps are add to the
+  //   first available slot, one you find an empty slot
+  //   it's not possible that a heap ptr for this block
+  //   exists in a later slot
+  for (int i = 0; i < HDR_BUF_RONLY_HEAPS; i++) {
+    if (m_ronly_heap[i].m_heap_start == NULL) {
+      // Add block to heap in this slot
+      m_ronly_heap[i].m_heap_start = (char *) use_start;
+      m_ronly_heap[i].m_heap_len = (int) (b->end() - b->start());
+      m_ronly_heap[i].m_ref_count_ptr = b->data;
+//          printf("Attaching block at %X for %d in slot %d\n",
+//                 m_ronly_heap[i].m_heap_start,
+//                 m_ronly_heap[i].m_heap_len,
+//                 i);
+      return i;
+    } else if (m_ronly_heap[i].m_heap_start == b->buf()) {
+      // This block is already on the heap so just extend
+      //   it's range
+      m_ronly_heap[i].m_heap_len = (int) (b->end() - b->buf());
+//          printf("Extending block at %X to %d in slot %d\n",
+//                 m_ronly_heap[i].m_heap_start,
+//                 m_ronly_heap[i].m_heap_len,
+//                 i);
+      return i;
+    }
+  }
+
+  // We didn't find an open block slot so we'll have to create one
+  coalesce_str_heaps();
+  goto RETRY;
+}
diff --git a/proxy/hdrs/HdrTest.cc b/proxy/hdrs/HdrTest.cc
new file mode 100644
index 00000000..637a8362
--- /dev/null
+++ b/proxy/hdrs/HdrTest.cc
@@ -0,0 +1,2278 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrTest.cc
+
+   Description:
+       Unit test code for sanity checking the header system is functioning
+         properly
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+
+#include "Arena.h"
+#include "HTTP.h"
+#include "MIME.h"
+#include "Regex.h"
+#include "URL.h"
+#include "HttpCompat.h"
+
+#include "HdrTest.h"
+
+//////////////////////
+// Main Test Driver //
+//////////////////////
+
+int
+HdrTest::go(RegressionTest * t, int /* atype ATS_UNUSED */)
+{
+  HdrTest::rtest = t;
+  int status = 1;
+
+  hdrtoken_init();
+  url_init();
+  mime_init();
+  http_init();
+
+  status = status & test_error_page_selection();
+  status = status & test_http_hdr_print_and_copy();
+  status = status & test_comma_vals();
+  status = status & test_parse_comma_list();
+  status = status & test_set_comma_vals();
+  status = status & test_delete_comma_vals();
+  status = status & test_extend_comma_vals();
+  status = status & test_insert_comma_vals();
+  status = status & test_accept_language_match();
+  status = status & test_accept_charset_match();
+  status = status & test_parse_date();
+  status = status & test_format_date();
+  status = status & test_url();
+  status = status & test_arena();
+  status = status & test_regex();
+  status = status & test_http_parser_eos_boundary_cases();
+  status = status & test_http_mutation();
+  status = status & test_mime();
+  status = status & test_http();
+
+  return (status ? REGRESSION_TEST_PASSED : REGRESSION_TEST_FAILED);
+}
+
+////////////////////////////////////////////////////////////
+// Individual Tests --- return 1 on success, 0 on failure //
+////////////////////////////////////////////////////////////
+
+int
+HdrTest::test_error_page_selection()
+{
+  static struct
+  {
+    const char *set_name;
+    const char *content_language;
+    const char *content_charset;
+  } sets[] = {
+    {
+    "default", "en", "iso-8859-1"}, {
+    "en-cockney", "en-cockney", "iso-8859-1"}, {
+    "en", "en", "iso-8859-1"}, {
+    "en-us", "en-us", "us-ascii"}, {
+    "en", "en", "unicode"}, {
+    "en-cockney-slang", "en-cockney-slang", "iso-8859-1"}, {
+    "ko", "ko", "iso-8859-1"}, {
+    "ko", "ko", "iso-2022-kr"}, {
+    "jp", "jp", "shift-jis"}
+  };
+
+  static struct
+  {
+    const char *accept_language;
+    const char *accept_charset;
+    const char *expected_set;
+    float expected_Q;
+    int expected_La;
+    int expected_I;
+  } tests[] = {
+    {
+    NULL, NULL, "default", 1, 0, INT_MAX}, {
+    "en", NULL, "en", 1, 2, 1}, {
+    "ko", NULL, "ko", 1, 2, 1}, {
+    "en-us", NULL, "en-us", 1, 5, 1}, {
+    "en-US", NULL, "en-us", 1, 5, 1}, {
+    "en,ko", NULL, "en", 1, 2, 1}, {
+    "ko,en", NULL, "ko", 1, 2, 1}, {
+    "en;q=0.7,ko", NULL, "ko", 1, 2, 2}, {
+    "en;q=.7,ko", NULL, "ko", 1, 2, 2}, {
+    "en;q=.7,ko;q=.7", NULL, "en", 0.7, 2, 1}, {
+    "en;q=.7,ko;q=.701", NULL, "ko", 0.701, 2, 2}, {
+    "en;q=.7  ,  ko;q=.701", NULL, "ko", 0.701, 2, 2}, {
+    "en  ;  q=.7  ,  ko  ;  ;  ;  ; q=.701", NULL, "ko", 0.701, 2, 2}, {
+    "en,ko;q=.7", NULL, "en", 1, 2, 1}, {
+    "en;q=1,ko;q=.7", NULL, "en", 1, 2, 1}, {
+    "en;;;q=1,ko;q=.7", NULL, "en", 1, 2, 1}, {
+    "en;;;q=1,,,,ko;q=.7", NULL, "en", 1, 2, 1}, {
+    "en;;;q=.7,,,,ko;q=.7", NULL, "en", 0.7, 2, 1}, {
+    "en;;;q=.699,,,,ko;q=.7", NULL, "ko", 0.7, 2, 5}, {
+    "en;q=0,ko;q=1", NULL, "ko", 1, 2, 2}, {
+    "en;q=0, ko;q=1", NULL, "ko", 1, 2, 2}, {
+    "en;q=0,ko;q=.5", NULL, "ko", 0.5, 2, 2}, {
+    "en;q=0, ko;q=.5", NULL, "ko", 0.5, 2, 2}, {
+    "en;q=000000000.00000000000000000000,ko;q=1.0000000000000000000", NULL, "ko", 1, 2, 2}
+  };
+
+  bri_box("test_error_page_selection");
+
+  int i;
+  int failures = 0;
+
+  int nsets = sizeof(sets) / sizeof(sets[0]);
+  int ntests = sizeof(tests) / sizeof(tests[0]);
+
+  // (1) build fake hash table of sets
+
+  RawHashTable *table_of_sets = new RawHashTable(RawHashTable_KeyType_String);
+
+  for (i = 0; i < nsets; i++) {
+    HttpBodySetRawData *body_set;
+
+    body_set = (HttpBodySetRawData *)ats_malloc(sizeof(HttpBodySetRawData));
+    body_set->magic = 0;
+    body_set->set_name = (char *) (sets[i].set_name);
+    body_set->content_language = (char *) (sets[i].content_language);
+    body_set->content_charset = (char *) (sets[i].content_charset);
+    body_set->table_of_pages = (RawHashTable *) 1;      // hack --- can't be NULL
+
+    table_of_sets->setValue((RawHashTable_Key) (body_set->set_name), (RawHashTable_Value) body_set);
+  }
+
+  // (2) for each test, parse accept headers into lists, and test matching
+
+  for (i = 0; i < ntests; i++) {
+    float Q_best;
+    int La_best, Lc_best, I_best;
+    const char *set_best;
+
+    StrList accept_language_list;
+    StrList accept_charset_list;
+
+    HttpCompat::parse_comma_list(&accept_language_list, tests[i].accept_language);
+    HttpCompat::parse_comma_list(&accept_charset_list, tests[i].accept_charset);
+
+    printf("         test #%d: (Accept-Language='%s', Accept-Charset='%s')\n",
+           i + 1,
+           (tests[i].accept_language ? tests[i].accept_language : "<null>"),
+           (tests[i].accept_charset ? tests[i].accept_charset : "<null>"));
+
+    set_best = HttpCompat::determine_set_by_language(table_of_sets,
+                                                     &(accept_language_list), &(accept_charset_list),
+                                                     &Q_best, &La_best, &Lc_best, &I_best);
+
+    if ((strcmp(set_best, tests[i].expected_set) == 0) &&
+        (Q_best == tests[i].expected_Q) && (La_best == tests[i].expected_La) && (I_best == tests[i].expected_I)) {
+      printf("SUCCESS: test #%d expected [ S='%s', Q=%g, La=%d, I=%d ] got [ S='%s', Q=%g, La=%d, I=%d ]\n",
+             i + 1,
+             tests[i].expected_set, tests[i].expected_Q, tests[i].expected_La, tests[i].expected_I,
+             set_best, Q_best, La_best, I_best);
+    } else {
+      ++failures;
+      printf(" FAILED: test #%d expected [ S='%s', Q=%g, La=%d, I=%d ] got [ S='%s', Q=%g, La=%d, I=%d ]\n",
+             i + 1,
+             tests[i].expected_set, tests[i].expected_Q, tests[i].expected_La, tests[i].expected_I,
+             set_best, Q_best, La_best, I_best);
+    }
+  }
+
+  delete table_of_sets;
+  return (failures_to_status("test_error_page_selection", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_parse_date()
+{
+  static struct
+  {
+    const char *fast;
+    const char *slow;
+  } dates[] = {
+    {
+    "Sun, 06 Nov 1994 08:49:37 GMT", "Sunday, 06-Nov-1994 08:49:37 GMT"}, {
+    "Mon, 07 Nov 1994 08:49:37 GMT", "Monday, 07-Nov-1994 08:49:37 GMT"}, {
+    "Tue, 08 Nov 1994 08:49:37 GMT", "Tuesday, 08-Nov-1994 08:49:37 GMT"}, {
+    "Wed, 09 Nov 1994 08:49:37 GMT", "Wednesday, 09-Nov-1994 08:49:37 GMT"}, {
+    "Thu, 10 Nov 1994 08:49:37 GMT", "Thursday, 10-Nov-1994 08:49:37 GMT"}, {
+    "Fri, 11 Nov 1994 08:49:37 GMT", "Friday, 11-Nov-1994 08:49:37 GMT"}, {
+    "Sat, 11 Nov 1994 08:49:37 GMT", "Saturday, 11-Nov-1994 08:49:37 GMT"}, {
+    "Sun, 03 Jan 1999 08:49:37 GMT", "Sunday, 03-Jan-1999 08:49:37 GMT"}, {
+    "Sun, 07 Feb 1999 08:49:37 GMT", "Sunday, 07-Feb-1999 08:49:37 GMT"}, {
+    "Sun, 07 Mar 1999 08:49:37 GMT", "Sunday, 07-Mar-1999 08:49:37 GMT"}, {
+    "Sun, 04 Apr 1999 08:49:37 GMT", "Sunday, 04-Apr-1999 08:49:37 GMT"}, {
+    "Sun, 02 May 1999 08:49:37 GMT", "Sunday, 02-May-1999 08:49:37 GMT"}, {
+    "Sun, 06 Jun 1999 08:49:37 GMT", "Sunday, 06-Jun-1999 08:49:37 GMT"}, {
+    "Sun, 04 Jul 1999 08:49:37 GMT", "Sunday, 04-Jul-1999 08:49:37 GMT"}, {
+    "Sun, 01 Aug 1999 08:49:37 GMT", "Sunday, 01-Aug-1999 08:49:37 GMT"}, {
+    "Sun, 05 Sep 1999 08:49:37 GMT", "Sunday, 05-Sep-1999 08:49:37 GMT"}, {
+    "Sun, 03 Oct 1999 08:49:37 GMT", "Sunday, 03-Oct-1999 08:49:37 GMT"}, {
+    "Sun, 07 Nov 1999 08:49:37 GMT", "Sunday, 07-Nov-1999 08:49:37 GMT"}, {
+    "Sun, 05 Dec 1999 08:49:37 GMT", "Sunday, 05-Dec-1999 08:49:37 GMT"}, {
+  NULL, NULL}};
+
+  int i;
+  int failures = 0;
+  time_t fast_t, slow_t;
+
+  bri_box("test_parse_date");
+
+  for (i = 0; dates[i].fast; i++) {
+    fast_t = mime_parse_date(dates[i].fast, dates[i].fast + (int) strlen(dates[i].fast));
+    slow_t = mime_parse_date(dates[i].slow, dates[i].slow + (int) strlen(dates[i].slow));
+    // compare with strptime here!
+    if (fast_t != slow_t) {
+      printf("FAILED: date %lu (%s) != %lu (%s)\n",
+             (unsigned long) fast_t, dates[i].fast, (unsigned long) slow_t, dates[i].slow);
+      ++failures;
+    }
+  }
+
+  return (failures_to_status("test_parse_date", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_format_date()
+{
+  static const char *dates[] = {
+    "Sun, 06 Nov 1994 08:49:37 GMT",
+    "Sun, 03 Jan 1999 08:49:37 GMT",
+    "Sun, 05 Dec 1999 08:49:37 GMT",
+    "Tue, 25 Apr 2000 20:29:53 GMT",
+    NULL
+  };
+
+  bri_box("test_format_date");
+
+  // (1) Test a few hand-created dates
+
+  int i;
+  time_t t, t2, t3;
+  char buffer[128], buffer2[128];
+  static const char *envstr = "TZ=GMT0";
+  int failures = 0;
+
+  // shift into GMT timezone for cftime conversions
+  putenv((char*)envstr);
+  tzset();
+
+  for (i = 0; dates[i]; i++) {
+    t = mime_parse_date(dates[i], dates[i] + (int) strlen(dates[i]));
+
+    cftime_replacement(buffer, sizeof(buffer), "%a, %d %b %Y %T %Z", &t);
+    if (memcmp(dates[i], buffer, 29) != 0) {
+      printf("FAILED: original date doesn't match cftime date\n");
+      printf("  input date:  %s\n", dates[i]);
+      printf("  cftime date: %s\n", buffer);
+      ++failures;
+    }
+
+    mime_format_date(buffer, t);
+    if (memcmp(dates[i], buffer, 29) != 0) {
+      printf("FAILED: original date doesn't match mime_format_date date\n");
+      printf("  input date:  %s\n", dates[i]);
+      printf("  cftime date: %s\n", buffer);
+      ++failures;
+    }
+  }
+
+  // (2) test a few times per day from 1/1/1970 to past 2010
+
+  // coverity[secure_coding]
+  for (t = 0; t < 40 * 366 * (24 * 60 * 60); t += (int) (drand48() * (24 * 60 * 60))) {
+    cftime_replacement(buffer, sizeof(buffer), "%a, %d %b %Y %T %Z", &t);
+    t2 = mime_parse_date(buffer, buffer + (int) strlen(buffer));
+    if (t2 != t) {
+      printf("FAILED: parsed time_t doesn't match original time_t\n");
+      printf("  input time_t:  %d (%s)\n", (int) t, buffer);
+      printf("  parsed time_t: %d\n", (int) t2);
+      ++failures;
+    }
+    mime_format_date(buffer2, t);
+    if (memcmp(buffer, buffer2, 29) != 0) {
+      printf("FAILED: formatted date doesn't match original date\n");
+      printf("  original date:  %s\n", buffer);
+      printf("  formatted date: %s\n", buffer2);
+      ++failures;
+    }
+    t3 = mime_parse_date(buffer2, buffer2 + (int) strlen(buffer2));
+    if (t != t3) {
+      printf("FAILED: parsed time_t doesn't match original time_t\n");
+      printf("  input time_t:  %d (%s)\n", (int) t, buffer2);
+      printf("  parsed time_t: %d\n", (int) t3);
+      ++failures;
+    }
+
+    if (failures > 20) {
+      // Already too many failures, don't need to continue
+      break;
+    }
+  }
+
+  return (failures_to_status("test_format_date", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_url()
+{
+  static const char *strs[] = {
+    "http://some.place/path;params?query#fragment",
+
+    // Start with an easy one...
+    "http://trafficserver.apache.org/index.html",
+
+    // "cheese://bogosity",         This fails, but it's not clear it should work...
+
+    "some.place",
+    "some.place/",
+    "http://some.place",
+    "http://some.place/",
+    "http://some.place/path",
+    "http://some.place/path;params",
+    "http://some.place/path;params?query",
+    "http://some.place/path;params?query#fragment",
+    "http://some.place/path?query#fragment",
+    "http://some.place/path#fragment",
+
+    "some.place:80",
+    "some.place:80/",
+    "http://some.place:80",
+    "http://some.place:80/",
+
+    "foo@some.place:80",
+    "foo@some.place:80/",
+    "http://foo@some.place:80",
+    "http://foo@some.place:80/",
+
+    "foo:bar@some.place:80",
+    "foo:bar@some.place:80/",
+    "http://foo:bar@some.place:80",
+    "http://foo:bar@some.place:80/",
+
+    // Some address stuff
+    "http://172.16.28.101",
+    "http://172.16.28.101:8080",
+    "http://[::]",
+    "http://[::1]",
+    "http://[fc01:172:16:28::101]",
+    "http://[fc01:172:16:28::101]:80",
+    "http://[fc01:172:16:28:BAAD:BEEF:DEAD:101]",
+    "http://[fc01:172:16:28:BAAD:BEEF:DEAD:101]:8080",
+    "http://172.16.28.101/some/path",
+    "http://172.16.28.101:8080/some/path",
+    "http://[::1]/some/path",
+    "http://[fc01:172:16:28::101]/some/path",
+    "http://[fc01:172:16:28::101]:80/some/path",
+    "http://[fc01:172:16:28:BAAD:BEEF:DEAD:101]/some/path",
+    "http://[fc01:172:16:28:BAAD:BEEF:DEAD:101]:8080/some/path",
+    "http://172.16.28.101/",
+    "http://[fc01:172:16:28:BAAD:BEEF:DEAD:101]:8080/",
+
+
+    "foo:bar@some.place",
+    "foo:bar@some.place/",
+    "http://foo:bar@some.place",
+    "http://foo:bar@some.place/",
+    "http://foo:bar@[::1]:8080/",
+    "http://foo@[::1]",
+
+    "mms://sm02.tsqa.example.com/0102rally.asf",
+    "pnm://foo:bar@some.place:80/path;params?query#fragment",
+    "rtsp://foo:bar@some.place:80/path;params?query#fragment",
+    "rtspu://foo:bar@some.place:80/path;params?query#fragment",
+    "/finance/external/cbsm/*http://cbs.marketwatch.com/archive/19990713/news/current/net.htx?source=blq/yhoo&dist=yhoo",
+    "http://a.b.com/xx.jpg?newpath=http://bob.dave.com"
+  };
+  static int nstrs = sizeof(strs) / sizeof(strs[0]);
+
+  static char const* bad[] = {
+    "http://[1:2:3:4:5:6:7:8:9]",
+    "http://1:2:3:4:5:6:7:8:A:B",
+    "http://bob.com[::1]",
+    "http://[::1].com"
+    "http://foo:bar:baz@bob.com/",
+    "http://foo:bar:baz@[::1]:8080/",
+    "http://]",
+    "http://:",
+    "http:/"
+  };
+  static int nbad = sizeof(bad) / sizeof(bad[0]);
+
+  int err, failed;
+  URL url;
+  const char *start;
+  const char *end;
+  int i, old_length, new_length;
+
+  bri_box("test_url");
+
+  failed = 0;
+  for (i = 0; i < nstrs; i++) {
+    old_length = (int) strlen(strs[i]);
+    start = strs[i];
+    end = start + old_length;
+
+    url.create(NULL);
+    err = url.parse(&start, end);
+    if (err < 0) {
+      failed = 1;
+      break;
+    }
+
+    char print_buf[1024];
+    new_length = 0;
+    int offset = 0;
+    url.print(print_buf, 1024, &new_length, &offset);
+    print_buf[new_length] = '\0';
+
+    const char *fail_text = NULL;
+
+    if (old_length == new_length) {
+      if (memcmp(print_buf, strs[i], new_length) != 0)
+        fail_text = "URLS DIFFER";
+    } else if (old_length == new_length - 1) {
+      // Check to see if the difference is the trailing
+      //   slash we add
+      if (memcmp(print_buf, strs[i], old_length) != 0 ||
+          print_buf[new_length - 1] != '/' || (strs[i])[old_length - 1] == '/') {
+        fail_text = "TRAILING SLASH";
+      }
+    } else {
+      fail_text = "LENGTHS DIFFER";
+    }
+
+    if (fail_text) {
+      failed = 1;
+      printf("%16s: OLD: (%4d) %s\n", fail_text, old_length, strs[i]);
+      printf("%16s: NEW: (%4d) %s\n", "", new_length, print_buf);
+      obj_describe(url.m_url_impl, true);
+    } else {
+      printf("%16s: '%s'\n", "PARSE SUCCESS", strs[i]);
+    }
+
+    url.destroy();
+  }
+
+  for (i = 0 ; i < nbad ; ++i) {
+    char const* x = bad[i];
+    url.create(NULL);
+    err = url.parse(x, strlen(x));
+    url.destroy();
+    if (err == PARSE_DONE) {
+      failed = 1;
+      printf("Successfully parsed invalid url '%s'", x);
+      break;
+    }
+  }
+
+#if 0
+  if (!failed) {
+    Note("URL performance test start");
+    for (int j = 0 ; j < 100000 ; ++j) {
+      for (i = 0 ; i < nstrs ; ++i) {
+        char const* x = strs[i];
+        url.create(NULL);
+        err = url.parse(x, strlen(x));
+        url.destroy();
+      }
+    }
+    Note("URL performance test end");
+  }
+#endif
+
+  return (failures_to_status("test_url", failed));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_mime()
+{
+  static const char mime[] = {
+    //        "Date: Tuesday, 08-Dec-98 20:32:17 GMT\r\n"
+    "Date: 6 Nov 1994 08:49:37 GMT\r\n"
+      "Max-Forwards: 65535\r\n"
+      "Cache-Control: private\r\n"
+      "accept: foo\r\n"
+      "accept: bar\n"
+      ": (null) field name\r\n"
+      "aCCept: \n"
+      "ACCEPT\r\n"
+      "foo: bar\r\n"
+      "foo: argh\r\n"
+      "word word: word \r\n"
+      "accept: \"fazzle, dazzle\"\r\n"
+      "accept: 1, 2, 3, 4, 5, 6, 7, 8\r\n"
+      "continuation: part1\r\n" " part2\r\n" "scooby: doo\r\n" "scooby : doo\r\n" "bar: foo\r\n" "\r\n"
+  };
+
+  int err;
+  MIMEHdr hdr;
+  MIMEParser parser;
+  const char *start;
+  const char *end;
+
+  bri_box("test_mime");
+
+  printf("   <<< MUST BE HAND-VERIFIED FOR FULL-BENEFIT>>>\n\n");
+
+  start = mime;
+  end = start + strlen(start);
+
+  mime_parser_init(&parser);
+
+  bool must_copy_strs = 0;
+
+  hdr.create(NULL);
+  err = hdr.parse(&parser, &start, end, must_copy_strs, false);
+
+  if (err < 0)
+    return (failures_to_status("test_mime", 1));
+
+  hdr.field_delete("not_there", 9);
+  hdr.field_delete("accept", 6);
+  hdr.field_delete("scooby", 6);
+  hdr.field_delete("scooby", 6);
+  hdr.field_delete("bar", 3);
+  hdr.field_delete("continuation", 12);
+
+  int count = hdr.fields_count();
+  printf("hdr.fields_count() = %d\n", count);
+
+  int i_max_forwards = hdr.value_get_int("Max-Forwards", 12);
+  int u_max_forwards = hdr.value_get_uint("Max-Forwards", 12);
+  printf("i_max_forwards = %d   u_max_forwards = %d\n", i_max_forwards, u_max_forwards);
+
+  hdr.set_age(9999);
+
+  int length = hdr.length_get();
+  printf("hdr.length_get() = %d\n", length);
+
+  time_t t0, t1, t2;
+
+  t0 = hdr.get_date();
+  if (t0 == 0) {
+    printf("FAILED: Initial date is zero but shouldn't be\n");
+    return (failures_to_status("test_mime", 1));
+  }
+
+  t1 = time(NULL);
+  hdr.set_date(t1);
+  t2 = hdr.get_date();
+  if (t1 != t2) {
+    printf("FAILED: set_date(%" PRId64 ") ... get_date = %" PRId64 "\n\n", (int64_t)t1, (int64_t)t2);
+    return (failures_to_status("test_mime", 1));
+  }
+
+  hdr.value_append("Cache-Control", 13, "no-cache", 8, 1);
+
+  MIMEField *cc_field;
+  StrList slist;
+
+  cc_field = hdr.field_find("Cache-Control", 13);
+  // TODO: Do we need to check the "count" returned?
+  cc_field->value_get_comma_list(&slist); // FIX: correct usage?
+
+  mime_parser_clear(&parser);
+
+  hdr.print(NULL, 0, NULL, NULL);
+  printf("\n");
+
+  obj_describe((HdrHeapObjImpl *) (hdr.m_mime), true);
+
+  hdr.fields_clear();
+
+  hdr.destroy();
+
+  return (failures_to_status("test_mime", 0));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http_parser_eos_boundary_cases()
+{
+  struct
+  {
+    const char *msg;
+    int expected_result;
+    int expected_bytes_consumed;
+  } tests[] = {
+    {
+    "GET /index.html HTTP/1.0\r\n", PARSE_DONE, 26}, {
+    "GET /index.html HTTP/1.0\r\n\r\n***BODY****", PARSE_DONE, 28}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n\r\n***BODY****", PARSE_DONE, 48}, {
+    "GET", PARSE_ERROR, 3}, {
+    "GET /index.html", PARSE_ERROR, 15}, {
+    "GET /index.html\r\n", PARSE_DONE, 17}, {
+    "GET /index.html HTTP/1.0", PARSE_ERROR, 24}, {
+    "GET /index.html HTTP/1.0\r", PARSE_ERROR, 25}, {
+    "GET /index.html HTTP/1.0\n", PARSE_DONE, 25}, {
+    "GET /index.html HTTP/1.0\n\n", PARSE_DONE, 26}, {
+    "GET /index.html HTTP/1.0\r\n\r\n", PARSE_DONE, 28}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar", PARSE_ERROR, 44}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\n", PARSE_DONE, 45}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n", PARSE_DONE, 46}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n\r\n", PARSE_DONE, 48}, {
+    "GET /index.html HTTP/1.0\nUser-Agent: foobar\n", PARSE_DONE, 44}, {
+    "GET /index.html HTTP/1.0\nUser-Agent: foobar\nBoo: foo\n", PARSE_DONE, 53}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n", PARSE_DONE, 46}, {
+    "GET /index.html HTTP/1.0\r\n", PARSE_DONE, 26}, {
+    "", PARSE_ERROR, 0}, {
+    NULL, 0, 0}
+  };
+
+  int i, ret, bytes_consumed;
+  const char *orig_start;
+  const char *start;
+  const char *end;
+  HTTPParser parser;
+
+  int failures = 0;
+
+  bri_box("test_http_parser_eos_boundary_cases");
+
+  http_parser_init(&parser);
+
+  for (i = 0; tests[i].msg != NULL; i++) {
+    HTTPHdr req_hdr;
+
+    start = tests[i].msg;
+    end = start + strlen(start);        // 1 character past end of string
+
+    req_hdr.create(HTTP_TYPE_REQUEST);
+
+    http_parser_clear(&parser);
+
+    orig_start = start;
+    ret = req_hdr.parse_req(&parser, &start, end, true);
+    bytes_consumed = (int) (start - orig_start);
+
+    printf("======== test %d (length=%d, consumed=%d)\n", i, (int)strlen(tests[i].msg), bytes_consumed);
+    printf("[%s]\n", tests[i].msg);
+    printf("\n[");
+    req_hdr.print(NULL, 0, NULL, NULL);
+    printf("]\n\n");
+
+    if ((ret != tests[i].expected_result) || (bytes_consumed != tests[i].expected_bytes_consumed)) {
+      ++failures;
+      printf("FAILED: test %d: retval <expected %d, got %d>, eaten <expected %d, got %d>\n\n",
+             i, tests[i].expected_result, ret, tests[i].expected_bytes_consumed, bytes_consumed);
+    }
+
+    req_hdr.destroy();
+  }
+
+  return (failures_to_status("test_http_parser_eos_boundary_cases", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http_aux(const char *request, const char *response)
+{
+  int err;
+  HTTPHdr req_hdr, rsp_hdr;
+  HTTPParser parser;
+  const char *start;
+  const char *end;
+
+  int status = 1;
+
+  printf("   <<< MUST BE HAND-VERIFIED FOR FULL BENEFIT >>>\n\n");
+
+    /*** (1) parse the request string into req_hdr ***/
+
+  start = request;
+  end = start + strlen(start);  // 1 character past end of string
+
+  http_parser_init(&parser);
+
+  req_hdr.create(HTTP_TYPE_REQUEST);
+  rsp_hdr.create(HTTP_TYPE_RESPONSE);
+
+  printf("======== parsing\n\n");
+  while (1) {
+    err = req_hdr.parse_req(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+  if (err == PARSE_ERROR) {
+    req_hdr.destroy();
+    rsp_hdr.destroy();
+    return (failures_to_status("test_http_aux", (status == 0)));
+  }
+
+    /*** useless copy to exercise copy function ***/
+
+  HTTPHdr new_hdr;
+  new_hdr.create(HTTP_TYPE_REQUEST);
+  new_hdr.copy(&req_hdr);
+  new_hdr.destroy();
+
+    /*** (2) print out the request ***/
+
+  printf("======== real request (length=%d)\n\n", (int)strlen(request));
+  printf("%s\n", request);
+
+  printf("\n[");
+  req_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+  obj_describe(req_hdr.m_http, true);
+
+  // req_hdr.destroy ();
+  // ink_release_assert(!"req_hdr.destroy() not defined");
+
+    /*** (3) parse the response string into rsp_hdr ***/
+
+  start = response;
+  end = start + strlen(start);
+
+  http_parser_clear(&parser);
+  http_parser_init(&parser);
+
+  while (1) {
+    err = rsp_hdr.parse_resp(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+  if (err == PARSE_ERROR) {
+    req_hdr.destroy();
+    rsp_hdr.destroy();
+    return (failures_to_status("test_http_aux", (status == 0)));
+  }
+
+  http_parser_clear(&parser);
+
+    /*** (4) print out the response ***/
+
+  printf("\n======== real response (length=%d)\n\n", (int)strlen(response));
+  printf("%s\n", response);
+
+  printf("\n[");
+  rsp_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+  obj_describe(rsp_hdr.m_http, true);
+
+#define NNN 1000
+  {
+    char buf[NNN];
+    int bufindex, last_bufindex;
+    int tmp;
+    int i;
+
+    bufindex = 0;
+
+    do {
+      last_bufindex = bufindex;
+      tmp = bufindex;
+      buf[0] = '#';             // make it obvious if hdr.print doesn't print anything
+      err = rsp_hdr.print(buf, NNN, &bufindex, &tmp);
+
+      // printf("test_header: tmp = %d  err = %d  bufindex = %d\n", tmp, err, bufindex);
+      putchar('{');
+      for (i = 0; i < bufindex - last_bufindex; i++) {
+        if (!iscntrl(buf[i]))
+          putchar(buf[i]);
+        else
+          printf("\\%o", buf[i]);
+      }
+      putchar('}');
+    } while (!err);
+  }
+
+  // rsp_hdr.print (NULL, 0, NULL, NULL);
+
+  req_hdr.destroy();
+  rsp_hdr.destroy();
+
+  return (failures_to_status("test_http_aux", (status == 0)));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http_hdr_print_and_copy()
+{
+  static struct
+  {
+    const char *req;
+    const char *req_tgt;
+    const char *rsp;
+    const char *rsp_tgt;
+  } tests[] = {
+    {
+    "GET http://foo.com/bar.txt HTTP/1.0\r\n"
+        "Accept-Language: fjdfjdslkf dsjkfdj flkdsfjlk sjfdlk ajfdlksa\r\n"
+        "\r\n",
+        "GET http://foo.com/bar.txt HTTP/1.0\r\n"
+        "Accept-Language: fjdfjdslkf dsjkfdj flkdsfjlk sjfdlk ajfdlksa\r\n"
+        "\r\n", "HTTP/1.0 200 OK\r\n" "\r\n", "HTTP/1.0 200 OK\r\n" "\r\n"}, {
+    "GET http://foo.com/bar.txt HTTP/1.0\r\n"
+        "Accept-Language: fjdfjdslkf dsjkfdj flkdsfjlk sjfdlk ajfdlksa fjfj dslkfjdslk fjsdafkl dsajfkldsa jfkldsafj klsafjs lkafjdsalk fsdjakfl sdjaflkdsaj flksdjflsd ;ffd salfdjs lf;sdaf ;dsaf jdsal;fdjsaflkjsda \r\n"
+        "\r\n",
+        "GET http://foo.com/bar.txt HTTP/1.0\r\n"
+        "Accept-Language: fjdfjdslkf dsjkfdj flkdsfjlk sjfdlk ajfdlksa fjfj dslkfjdslk fjsdafkl dsajfkldsa jfkldsafj klsafjs lkafjdsalk fsdjakfl sdjaflkdsaj flksdjflsd ;ffd salfdjs lf;sdaf ;dsaf jdsal;fdjsaflkjsda \r\n"
+        "\r\n", "HTTP/1.0 200 OK\r\n" "\r\n", "HTTP/1.0 200 OK\r\n" "\r\n"}, {
+    "GET http://foo.com/bar.txt HTTP/1.0\r\n"
+        "Accept-Language: fjdfjdslkf dsjkfdj flkdsfjlk sjfdlk ajfdlksa fjfj dslkfjdslk fjsdafkl dsajfkldsa jfkldsafj klsafjs lkafjdsalk fsdjakfl sdjaflkdsaj flksdjflsd ;ffd salfdjs lf;sdaf ;dsaf jdsal;fdjsaflkjsda kfl; fsdajfl; sdjafl;dsajlsjfl;sdafjsdal;fjds al;fdjslaf ;slajdk;f\r\n"
+        "\r\n",
+        "GET http://foo.com/bar.txt HTTP/1.0\r\n"
+        "Accept-Language: fjdfjdslkf dsjkfdj flkdsfjlk sjfdlk ajfdlksa fjfj dslkfjdslk fjsdafkl dsajfkldsa jfkldsafj klsafjs lkafjdsalk fsdjakfl sdjaflkdsaj flksdjflsd ;ffd salfdjs lf;sdaf ;dsaf jdsal;fdjsaflkjsda kfl; fsdajfl; sdjafl;dsajlsjfl;sdafjsdal;fjds al;fdjslaf ;slajdk;f\r\n"
+        "\r\n", "HTTP/1.0 200 OK\r\n" "\r\n", "HTTP/1.0 200 OK\r\n" "\r\n"}, {
+      "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n" "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n" "Referer: chocolate fribble\r\n",    // missing final CRLF
+        "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n" "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n" "Referer: chocolate fribble\r\n" "\r\n", "HTTP/1.0 200 OK\r\n" "MIME-Version: 1.0\r\n" "Server: WebSTAR/2.1 ID/30013\r\n" "Content-Type: text/html\r\n" "Content-Length: 939\r\n" "Last-Modified: Thursday, 01-Jan-04 05:00:00 GMT\r\n",   // missing final CRLF
+    "HTTP/1.0 200 OK\r\n"
+        "MIME-Version: 1.0\r\n"
+        "Server: WebSTAR/2.1 ID/30013\r\n"
+        "Content-Type: text/html\r\n"
+        "Content-Length: 939\r\n" "Last-Modified: Thursday, 01-Jan-04 05:00:00 GMT\r\n" "\r\n"}, {
+      "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n" "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n" "Referer: \r\n",     // missing final CRLF
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+        "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+        "Referer: \r\n"
+        "\r\n",
+        "HTTP/1.0 200 OK\r\n"
+        "MIME-Version: 1.0\r\n"
+        "Server: WebSTAR/2.1 ID/30013\r\n"
+        "Content-Type: text/html\r\n"
+        "Content-Length: 939\r\n"
+        "Last-Modified: Thursday, 01-Jan-04 05:00:00 GMT\r\n"
+        "\r\n",
+        "HTTP/1.0 200 OK\r\n"
+        "MIME-Version: 1.0\r\n"
+        "Server: WebSTAR/2.1 ID/30013\r\n"
+        "Content-Type: text/html\r\n"
+        "Content-Length: 939\r\n" "Last-Modified: Thursday, 01-Jan-04 05:00:00 GMT\r\n" "\r\n"}, {
+    "GET http://www.news.com:80/ HTTP/1.0\r\n"
+        "Proxy-Connection: Keep-Alive\r\n"
+        "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.33 i586)\r\n"
+        "Pragma: no-cache\r\n"
+        "Host: www.news.com\r\n"
+        "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n"
+        "Accept-Language: en\r\n"
+        "Accept-Charset: iso-8859-1, *, utf-8\r\n"
+        "Client-ip: D1012148\r\n"
+        "Foo: abcdefghijklmnopqrtu\r\n"
+        "\r\n",
+        "GET http://www.news.com:80/ HTTP/1.0\r\n"
+        "Proxy-Connection: Keep-Alive\r\n"
+        "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.33 i586)\r\n"
+        "Pragma: no-cache\r\n"
+        "Host: www.news.com\r\n"
+        "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n"
+        "Accept-Language: en\r\n"
+        "Accept-Charset: iso-8859-1, *, utf-8\r\n"
+        "Client-ip: D1012148\r\n"
+        "Foo: abcdefghijklmnopqrtu\r\n"
+        "\r\n",
+        "HTTP/1.0 200 OK\r\n"
+        "Content-Length: 16428\r\n"
+        "Content-Type: text/html\r\n"
+        "\r\n", "HTTP/1.0 200 OK\r\n" "Content-Length: 16428\r\n" "Content-Type: text/html\r\n" "\r\n"}, {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+        "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+        "Referer: http://people.netscape.com/jwz/index.html\r\n"
+        "Proxy-Connection: Keep-Alive\r\n"
+        "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+        "Pragma: no-cache\r\n"
+        "Host: people.netscape.com\r\n"
+        "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n"
+        "\r\n",
+        "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+        "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+        "Referer: http://people.netscape.com/jwz/index.html\r\n"
+        "Proxy-Connection: Keep-Alive\r\n"
+        "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+        "Pragma: no-cache\r\n"
+        "Host: people.netscape.com\r\n"
+        "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n"
+        "\r\n",
+        "HTTP/1.0 200 OK\r\n"
+        "Content-Length: 16428\r\n"
+        "Content-Type: text/html\r\n"
+        "\r\n", "HTTP/1.0 200 OK\r\n" "Content-Length: 16428\r\n" "Content-Type: text/html\r\n" "\r\n"}
+  };
+
+  int ntests = sizeof(tests) / sizeof(tests[0]);
+  int i, failures;
+
+  failures = 0;
+
+  bri_box("test_http_hdr_print_and_copy");
+
+  for (i = 0; i < ntests; i++) {
+    int status =
+      test_http_hdr_print_and_copy_aux(i + 1, tests[i].req, tests[i].req_tgt, tests[i].rsp, tests[i].rsp_tgt);
+    if (status == 0)
+      ++failures;
+  }
+
+  return (failures_to_status("test_http_hdr_print_and_copy", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+static const char *
+comp_http_hdr(HTTPHdr * h1, HTTPHdr * h2)
+{
+
+  int h1_len, h2_len;
+  int p_index, p_dumpoffset, rval;
+  char *h1_pbuf, *h2_pbuf;
+
+  h1_len = h1->length_get();
+  h2_len = h2->length_get();
+
+  if (h1_len != h2_len) {
+    return "length mismatch";
+  }
+
+  h1_pbuf = (char *)ats_malloc(h1_len + 1);
+  h2_pbuf = (char *)ats_malloc(h2_len + 1);
+
+  p_index = p_dumpoffset = 0;
+  rval = h1->print(h1_pbuf, h1_len, &p_index, &p_dumpoffset);
+  if (rval != 1) {
+    ats_free(h1_pbuf);
+    ats_free(h2_pbuf);
+    return "hdr print failed";
+  }
+
+  p_index = p_dumpoffset = 0;
+  rval = h2->print(h2_pbuf, h2_len, &p_index, &p_dumpoffset);
+  if (rval != 1) {
+    ats_free(h1_pbuf);
+    ats_free(h2_pbuf);
+    return "hdr print failed";
+  }
+
+  rval = memcmp(h1_pbuf, h2_pbuf, h1_len);
+  ats_free(h1_pbuf);
+  ats_free(h2_pbuf);
+
+  if (rval != 0) {
+    return "compare failed";
+  } else {
+    return NULL;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http_hdr_copy_over_aux(int testnum, const char *request, const char *response)
+{
+  int err;
+  HTTPHdr req_hdr;
+  HTTPHdr resp_hdr;
+  HTTPHdr copy1;
+  HTTPHdr copy2;
+
+  HTTPParser parser;
+  const char *start;
+  const char *end;
+  const char *comp_str = NULL;
+
+    /*** (1) parse the request string into hdr ***/
+
+  req_hdr.create(HTTP_TYPE_REQUEST);
+
+  start = request;
+  end = start + strlen(start);  // 1 character past end of string
+
+  http_parser_init(&parser);
+
+  while (1) {
+    err = req_hdr.parse_req(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+
+  if (err == PARSE_ERROR) {
+    printf("FAILED: (test #%d) parse error parsing request hdr\n", testnum);
+    return (0);
+  }
+  http_parser_clear(&parser);
+
+
+    /*** (2) parse the response string into hdr ***/
+
+  resp_hdr.create(HTTP_TYPE_RESPONSE);
+
+  start = response;
+  end = start + strlen(start);  // 1 character past end of string
+
+  http_parser_init(&parser);
+
+  while (1) {
+    err = resp_hdr.parse_resp(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+
+  if (err == PARSE_ERROR) {
+    printf("FAILED: (test #%d) parse error parsing response hdr\n", testnum);
+    return (0);
+  }
+
+    /*** (3) Basic copy testing ***/
+  copy1.create(HTTP_TYPE_REQUEST);
+  copy1.copy(&req_hdr);
+  comp_str = comp_http_hdr(&req_hdr, &copy1);
+  if (comp_str)
+    goto done;
+
+  copy2.create(HTTP_TYPE_RESPONSE);
+  copy2.copy(&resp_hdr);
+  comp_str = comp_http_hdr(&resp_hdr, &copy2);
+  if (comp_str)
+    goto done;
+
+  // The APIs for copying headers uses memcpy() which can be unsafe for
+  // overlapping memory areas. It's unclear to me why these tests were
+  // created in the first place honestly, since nothing else does this.
+#if 0
+    /*** (4) Copying over yourself ***/
+  copy1.copy(&copy1);
+  comp_str = comp_http_hdr(&req_hdr, &copy1);
+  if (comp_str)
+    goto done;
+
+  copy2.copy(&copy2);
+  comp_str = comp_http_hdr(&resp_hdr, &copy2);
+  if (comp_str)
+    goto done;
+#endif
+
+    /*** (5) Gender bending copying ***/
+  copy1.copy(&resp_hdr);
+  comp_str = comp_http_hdr(&resp_hdr, &copy1);
+  if (comp_str)
+    goto done;
+
+  copy2.copy(&req_hdr);
+  comp_str = comp_http_hdr(&req_hdr, &copy2);
+  if (comp_str)
+    goto done;
+
+done:
+  req_hdr.destroy();
+  resp_hdr.destroy();
+  copy1.destroy();
+  copy2.destroy();
+
+  if (comp_str) {
+    printf("FAILED: (test #%d) copy & compare: %s\n", testnum, comp_str);
+    printf("REQ:\n[%.*s]\n", (int)strlen(request), request);
+    printf("RESP  :\n[%.*s]\n", (int)strlen(response), response);
+    return (0);
+  } else {
+    return (1);
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http_hdr_print_and_copy_aux(int testnum,
+                                          const char *request, const char *request_tgt,
+                                          const char *response, const char *response_tgt)
+{
+  int err;
+  HTTPHdr hdr;
+  HTTPParser parser;
+  const char *start;
+  const char *end;
+
+  char prt_buf[2048];
+  int prt_bufsize = sizeof(prt_buf);
+  int prt_bufindex, prt_dumpoffset, prt_ret;
+
+  char cpy_buf[2048];
+  int cpy_bufsize = sizeof(cpy_buf);
+  int cpy_bufindex, cpy_dumpoffset, cpy_ret;
+
+  char *marshal_buf = (char*)ats_malloc(2048);
+  int marshal_bufsize = sizeof(cpy_buf);
+
+    /*** (1) parse the request string into hdr ***/
+
+  hdr.create(HTTP_TYPE_REQUEST);
+
+  start = request;
+  end = start + strlen(start);  // 1 character past end of string
+
+  http_parser_init(&parser);
+
+  while (1) {
+    err = hdr.parse_req(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+
+  if (err == PARSE_ERROR) {
+    printf("FAILED: (test #%d) parse error parsing request hdr\n", testnum);
+    return (0);
+  }
+
+    /*** (2) copy the request header ***/
+  HTTPHdr new_hdr, marshal_hdr;
+  RefCountObj ref;
+  ref.m_refcount = 100;
+  int marshal_len = hdr.m_heap->marshal(marshal_buf, marshal_bufsize);
+  marshal_hdr.create(HTTP_TYPE_REQUEST);
+  marshal_hdr.unmarshal(marshal_buf, marshal_len, &ref);
+  new_hdr.create(HTTP_TYPE_REQUEST);
+  new_hdr.copy(&marshal_hdr);
+  ats_free(marshal_buf);
+
+    /*** (3) print the request header and copy to buffers ***/
+
+  prt_bufindex = prt_dumpoffset = 0;
+  prt_ret = hdr.print(prt_buf, prt_bufsize, &prt_bufindex, &prt_dumpoffset);
+
+  cpy_bufindex = cpy_dumpoffset = 0;
+  cpy_ret = new_hdr.print(cpy_buf, cpy_bufsize, &cpy_bufindex, &cpy_dumpoffset);
+
+  if ((prt_ret != 1) || (cpy_ret != 1)) {
+    printf("FAILED: (test #%d) couldn't print req hdr or copy --- prt_ret=%d, cpy_ret=%d\n", testnum, prt_ret, cpy_ret);
+    return (0);
+  }
+
+  if (((size_t) prt_bufindex != strlen(request_tgt)) || ((size_t) cpy_bufindex != strlen(request_tgt))) {
+    printf("FAILED: (test #%d) print req output size mismatch --- tgt=%d, prt_bufsize=%d, cpy_bufsize=%d\n",
+           testnum, (int)strlen(request_tgt), prt_bufindex, cpy_bufindex);
+
+    printf("ORIGINAL:\n[%.*s]\n", (int)strlen(request), request);
+    printf("TARGET  :\n[%.*s]\n", (int)strlen(request_tgt), request_tgt);
+    printf("PRT_BUFF:\n[%.*s]\n", prt_bufindex, prt_buf);
+    printf("CPY_BUFF:\n[%.*s]\n", cpy_bufindex, cpy_buf);
+    return (0);
+  }
+
+  if ((strncasecmp(request_tgt, prt_buf, strlen(request_tgt)) != 0) ||
+      (strncasecmp(request_tgt, cpy_buf, strlen(request_tgt)) != 0)) {
+    printf("FAILED: (test #%d) print req output mismatch\n", testnum);
+    printf("ORIGINAL:\n[%.*s]\n", (int)strlen(request), request);
+    printf("TARGET  :\n[%.*s]\n", (int)strlen(request_tgt), request_tgt);
+    printf("PRT_BUFF:\n[%.*s]\n", prt_bufindex, prt_buf);
+    printf("CPY_BUFF:\n[%.*s]\n", cpy_bufindex, cpy_buf);
+    return (0);
+  }
+
+  hdr.destroy();
+  new_hdr.destroy();
+
+    /*** (4) parse the response string into hdr ***/
+
+  hdr.create(HTTP_TYPE_RESPONSE);
+
+  start = response;
+  end = start + strlen(start);  // 1 character past end of string
+
+  http_parser_init(&parser);
+
+  while (1) {
+    err = hdr.parse_resp(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+
+  if (err == PARSE_ERROR) {
+    printf("FAILED: (test #%d) parse error parsing response hdr\n", testnum);
+    return (0);
+  }
+
+    /*** (2) copy the response header ***/
+
+  new_hdr.create(HTTP_TYPE_RESPONSE);
+  new_hdr.copy(&hdr);
+
+    /*** (3) print the response header and copy to buffers ***/
+
+  prt_bufindex = prt_dumpoffset = 0;
+  prt_ret = hdr.print(prt_buf, prt_bufsize, &prt_bufindex, &prt_dumpoffset);
+
+  cpy_bufindex = cpy_dumpoffset = 0;
+  cpy_ret = new_hdr.print(cpy_buf, cpy_bufsize, &cpy_bufindex, &cpy_dumpoffset);
+
+  if ((prt_ret != 1) || (cpy_ret != 1)) {
+    printf("FAILED: (test #%d) couldn't print rsp hdr or copy --- prt_ret=%d, cpy_ret=%d\n", testnum, prt_ret, cpy_ret);
+    return (0);
+  }
+
+  if (((size_t) prt_bufindex != strlen(response_tgt)) || ((size_t) cpy_bufindex != strlen(response_tgt))) {
+    printf("FAILED: (test #%d) print rsp output size mismatch --- tgt=%d, prt_bufsize=%d, cpy_bufsize=%d\n",
+           testnum, (int)strlen(response_tgt), prt_bufindex, cpy_bufindex);
+    printf("ORIGINAL:\n[%.*s]\n", (int)strlen(response), response);
+    printf("TARGET  :\n[%.*s]\n", (int)strlen(response_tgt), response_tgt);
+    printf("PRT_BUFF:\n[%.*s]\n", prt_bufindex, prt_buf);
+    printf("CPY_BUFF:\n[%.*s]\n", cpy_bufindex, cpy_buf);
+    return (0);
+  }
+
+  if ((strncasecmp(response_tgt, prt_buf, strlen(response_tgt)) != 0) ||
+      (strncasecmp(response_tgt, cpy_buf, strlen(response_tgt)) != 0)) {
+    printf("FAILED: (test #%d) print rsp output mismatch\n", testnum);
+    printf("ORIGINAL:\n[%.*s]\n", (int)strlen(response), response);
+    printf("TARGET  :\n[%.*s]\n", (int)strlen(response_tgt), response_tgt);
+    printf("PRT_BUFF:\n[%.*s]\n", prt_bufindex, prt_buf);
+    printf("CPY_BUFF:\n[%.*s]\n", cpy_bufindex, cpy_buf);
+    return (0);
+  }
+
+  hdr.destroy();
+  new_hdr.destroy();
+
+  if (test_http_hdr_copy_over_aux(testnum, request, response) == 0) {
+    return 0;
+  }
+
+  return (1);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http()
+{
+  int status = 1;
+
+  static const char request0[] = {
+    "GET http://www.news.com:80/ HTTP/1.0\r\n"
+      "Proxy-Connection: Keep-Alive\r\n"
+      "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.33 i586)\r\n"
+      "Pragma: no-cache\r\n"
+      "Host: www.news.com\r\n"
+      "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n"
+      "Accept-Language: en\r\n"
+      "Accept-Charset: iso-8859-1, *, utf-8\r\n"
+      "Cookie: u_vid_0_0=00031ba3; s_cur_0_0=0101sisi091314775496e7d3Jx4+POyJakrMybmNOsq6XOn5bVn5Z6a4Ln5crU5M7Rxq2lm5aWpqupo20=; SC_Cnet001=Sampled; SC_Cnet002=Sampled\r\n"
+      "Client-ip: D1012148\r\n" "Foo: abcdefghijklmnopqrtu\r\n" "\r\n"
+  };
+
+  static const char request09[] = {
+    "GET /index.html\r\n" "\r\n"
+  };
+
+  static const char request1[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+      "Referer: http://people.netscape.com/jwz/index.html\r\n"
+      "Proxy-Connection: Keep-Alive\r\n"
+      "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+      "Pragma: no-cache\r\n"
+      "Host: people.netscape.com\r\n" "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n" "\r\n"
+  };
+
+  static const char request_no_colon[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+      "Referer http://people.netscape.com/jwz/index.html\r\n"
+      "Proxy-Connection Keep-Alive\r\n"
+      "User-Agent  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+      "Pragma no-cache\r\n"
+      "Host people.netscape.com\r\n" "Accept image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n" "\r\n"
+  };
+
+  static const char request_no_val[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since:\r\n" "Referer:     " "Proxy-Connection:\r\n" "User-Agent:     \r\n" "Host:::\r\n" "\r\n"
+  };
+
+  static const char request_multi_fblock[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+      "Referer: http://people.netscape.com/jwz/index.html\r\n"
+      "Proxy-Connection: Keep-Alive\r\n"
+      "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+      "Pragma: no-cache\r\n"
+      "Host: people.netscape.com\r\n"
+      "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n"
+      "X-1: blah\r\n"
+      "X-2: blah\r\n"
+      "X-3: blah\r\n"
+      "X-4: blah\r\n"
+      "X-5: blah\r\n"
+      "X-6: blah\r\n"
+      "X-7: blah\r\n"
+      "X-8: blah\r\n"
+      "X-9: blah\r\n"
+      "Pragma: no-cache\r\n"
+      "X-X-1: blah\r\n"
+      "X-X-2: blah\r\n"
+      "X-X-3: blah\r\n"
+      "X-X-4: blah\r\n" "X-X-5: blah\r\n" "X-X-6: blah\r\n" "X-X-7: blah\r\n" "X-X-8: blah\r\n" "X-X-9: blah\r\n" "\r\n"
+  };
+
+  static const char request_leading_space[] = {
+    " GET http://www.news.com:80/ HTTP/1.0\r\n"
+      "Proxy-Connection: Keep-Alive\r\n" "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.33 i586)\r\n" "\r\n"
+  };
+
+  static const char request_padding[] = {
+    "GET http://www.padding.com:80/ HTTP/1.0\r\n" "X-1: blah1\r\n"
+      //       "X-2:  blah2\r\n"
+      "X-3:   blah3\r\n"
+      //       "X-4:    blah4\r\n"
+      "X-5:     blah5\r\n"
+      //       "X-6:      blah6\r\n"
+      "X-7:       blah7\r\n"
+      //       "X-8:        blah8\r\n"
+    "X-9:         blah9\r\n" "\r\n"
+  };
+
+  static const char request_09p[] = {
+    "GET http://www.news09.com/\r\n" "\r\n"
+  };
+
+  static const char request_09ht[] = {
+    "GET http://www.news09.com/ HT\r\n" "\r\n"
+  };
+
+  static const char request_11[] = {
+    "GET http://www.news.com/ HTTP/1.1\r\n" "Connection: close\r\n" "\r\n"
+  };
+
+  static const char request_unterminated[] = {
+    "GET http://www.unterminated.com/ HTTP/1.1"
+  };
+
+  static const char request_blank[] = {
+    "\r\n"
+  };
+
+  static const char request_blank2[] = {
+    "\r\n" "\r\n"
+  };
+
+  static const char request_blank3[] = {
+    "     " "\r\n"
+  };
+
+  ////////////////////////////////////////////////////
+
+  static const char response0[] = {
+    "HTTP/1.0 200 OK\r\n"
+      "MIME-Version: 1.0\r\n"
+      "Server: WebSTAR/2.1 ID/30013\r\n"
+      "Content-Type: text/html\r\n"
+      "Content-Length: 939\r\n" "Last-Modified: Thursday, 01-Jan-04 05:00:00 GMT\r\n" "\r\n"
+  };
+
+  static const char response1[] = {
+    "HTTP/1.0 200 OK\r\n"
+      "Server: Netscape-Communications/1.12\r\n"
+      "Date: Tuesday, 08-Dec-98 20:32:17 GMT\r\n" "Content-Type: text/html\r\n" "\r\n"
+  };
+
+  static const char response_no_colon[] = {
+    "HTTP/1.0 200 OK\r\n"
+      "Server Netscape-Communications/1.12\r\n"
+      "Date: Tuesday, 08-Dec-98 20:32:17 GMT\r\n" "Content-Type: text/html\r\n" "\r\n"
+  };
+
+  static const char response_unterminated[] = {
+    "HTTP/1.0 200 OK"
+  };
+
+  static const char response09[] = {
+    ""
+  };
+
+  static const char response_blank[] = {
+    "\r\n"
+  };
+
+  static const char response_blank2[] = {
+    "\r\n" "\r\n"
+  };
+
+  static const char response_blank3[] = {
+    "     " "\r\n"
+  };
+
+  status = status & test_http_aux(request0, response0);
+  status = status & test_http_aux(request09, response09);
+  status = status & test_http_aux(request1, response1);
+  status = status & test_http_aux(request_no_colon, response_no_colon);
+  status = status & test_http_aux(request_no_val, response_no_colon);
+  status = status & test_http_aux(request_leading_space, response0);
+  status = status & test_http_aux(request_multi_fblock, response0);
+  status = status & test_http_aux(request_padding, response0);
+  status = status & test_http_aux(request_09p, response0);
+  status = status & test_http_aux(request_09ht, response0);
+  status = status & test_http_aux(request_11, response0);
+  status = status & test_http_aux(request_unterminated, response_unterminated);
+  status = status & test_http_aux(request_blank, response_blank);
+  status = status & test_http_aux(request_blank2, response_blank2);
+  status = status & test_http_aux(request_blank3, response_blank3);
+
+  return (failures_to_status("test_http", (status == 0)));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_http_mutation()
+{
+  int status = 1;
+
+  bri_box("test_http_mutation");
+
+  printf("   <<< MUST BE HAND-VERIFIED FOR FULL BENEFIT>>>\n\n");
+
+  HTTPHdr resp_hdr;
+  int err, i;
+  HTTPParser parser;
+  const char base_resp[] = "HTTP/1.0 200 OK\r\n\r\n";
+  const char *start, *end;
+
+    /*** (1) parse the response string into req_hdr ***/
+
+  start = base_resp;
+  end = start + strlen(start);
+
+  http_parser_init(&parser);
+
+  resp_hdr.create(HTTP_TYPE_RESPONSE);
+
+  while (1) {
+    err = resp_hdr.parse_resp(&parser, &start, end, true);
+    if (err != PARSE_CONT)
+      break;
+  }
+
+  printf("\n======== before mutation ==========\n\n");
+  printf("\n[");
+  resp_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+    /*** (2) add in a bunch of header fields ****/
+  char field_name[1024];
+  char field_value[1024];
+  for (i = 1; i <= 100; i++) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+    snprintf(field_value, sizeof(field_value), "%d %d %d %d %d", i, i, i, i, i);
+    resp_hdr.value_set(field_name, (int) strlen(field_name), field_value, (int) strlen(field_value));
+  }
+
+    /**** (3) delete all the even numbered fields *****/
+  for (i = 2; i <= 100; i += 2) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+    resp_hdr.field_delete(field_name, (int) strlen(field_name));
+  }
+
+    /***** (4) add in secondary fields for all multiples of 3 ***/
+  for (i = 3; i <= 100; i += 3) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+    MIMEField *f = resp_hdr.field_create(field_name, (int) strlen(field_name));
+    resp_hdr.field_attach(f);
+    snprintf(field_value, sizeof(field_value), "d %d %d %d %d %d", i, i, i, i, i);
+    f->value_set(resp_hdr.m_heap, resp_hdr.m_mime, field_value, (int) strlen(field_value));
+
+  }
+
+    /***** (5) append all fields with multiples of 5 ***/
+  for (i = 5; i <= 100; i += 5) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+    snprintf(field_value, sizeof(field_value), "a %d", i);
+
+    resp_hdr.value_append(field_name, (int) strlen(field_name), field_value, (int) strlen(field_value), true);
+  }
+
+    /**** (6) delete all multiples of nine *****/
+  for (i = 9; i <= 100; i += 9) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+    resp_hdr.field_delete(field_name, (int) strlen(field_name));
+  }
+
+
+  printf("\n======== mutated response ==========\n\n");
+  printf("\n[");
+  resp_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+  resp_hdr.destroy();
+
+  return (failures_to_status("test_http_mutation", (status == 0)));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_arena_aux(Arena * arena, int len)
+{
+  char *str = arena->str_alloc(len);
+  int verify_len = (int) arena->str_length(str);
+
+  if (len != verify_len) {
+    printf("FAILED: requested %d, got %d bytes\n", len, verify_len);
+    return (1);                 // 1 error (different return convention)
+  } else {
+    return (0);                 // no errors (different return convention)
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_arena()
+{
+  bri_box("test_arena");
+
+  Arena *arena;
+  int failures = 0;
+
+  arena = new Arena;
+
+  failures += test_arena_aux(arena, 1);
+  failures += test_arena_aux(arena, 127);
+  failures += test_arena_aux(arena, 128);
+  failures += test_arena_aux(arena, 129);
+  failures += test_arena_aux(arena, 255);
+  failures += test_arena_aux(arena, 256);
+  failures += test_arena_aux(arena, 16384);
+  failures += test_arena_aux(arena, 16385);
+  failures += test_arena_aux(arena, 16511);
+  failures += test_arena_aux(arena, 16512);
+  failures += test_arena_aux(arena, 2097152);
+  failures += test_arena_aux(arena, 2097153);
+  failures += test_arena_aux(arena, 2097279);
+  failures += test_arena_aux(arena, 2097280);
+
+  delete arena;
+
+  return (failures_to_status("test_arena", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_regex()
+{
+  DFA dfa;
+  int status = 1;
+  
+  const char *test_harness[] = {
+    "foo",
+    "(.*\\.apache\\.org)",
+    "(.*\\.example\\.com)"
+  };
+  
+  bri_box("test_regex");
+  
+  dfa.compile(test_harness,SIZEOF(test_harness));
+  status = status & (dfa.match("trafficserver.apache.org") == 1);
+  status = status & (dfa.match("www.example.com") == 2);
+  status = status & (dfa.match("aaaaaafooooooooinktomi....com.org") == -1);
+  status = status & (dfa.match("foo") == 0);
+
+  return (failures_to_status("test_regex", (status != 1)));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_accept_language_match()
+{
+  bri_box("test_accept_language_match");
+
+  struct
+  {
+    const char *content_language;
+    const char *accept_language;
+    float Q;
+    int L;
+    int I;
+  } test_cases[] = {
+    {
+    "en", "*", 1.0, 1, 1}, {
+    "en", "fr", 0.0, 0, 0}, {
+    "en", "de, fr, en;q=0.7", 0.7, 2, 3}, {
+    "en-cockney", "de, fr, en;q=0.7", 0.7, 2, 3}, {
+    "en-cockney", "de, fr, en-foobar;q=0.8, en;q=0.7", 0.7, 2, 4}, {
+    "en-cockney", "de, fr, en-cockney;q=0.8, en;q=0.7", 0.8, 10, 3}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.7", 0.8, 2, 3}, {
+    "en-cockney", "de, fr, en;q=0.7, en;q=0.8", 0.8, 2, 4}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.8", 0.8, 2, 3}, {
+    "en-cockney", "de, fr, en-cockney;q=0.7, en;q=0.8", 0.7, 10, 3}, {
+    "en-cockney", "de, fr, en;q=0.8, en-cockney;q=0.7", 0.7, 10, 4}, {
+    "en-cockney", "de, fr, en-cockney;q=0.8, en;q=0.8", 0.8, 10, 3}, {
+    "en-cockney", "de, fr, en-cockney;q=0.8, en;q=0.7", 0.8, 10, 3}, {
+    "en-cockney", "de, fr, en-american", 0.0, 0, 0}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.8, *", 0.8, 2, 3}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9", 0.8, 2, 3}, {
+    "en-foobar", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9", 0.8, 2, 3}, {
+    "oo-foobar", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9", 0.9, 1, 5}, {
+    "oo-foobar", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9, *", 1.0, 1, 6}, {
+    "oo-foobar", "de, fr, en;q=0.8, en;q=0.8, *, *;q=0.9", 1.0, 1, 5}, {
+    "fr-belgian", "de, fr;hi-there;q=0.9, fr;q=0.8, en", 0.9, 2, 2}, {
+    "fr-belgian", "de, fr;q=0.8, fr;hi-there;q=0.9, en", 0.9, 2, 3}, {
+    NULL, NULL, 0.0}
+  };
+
+  int i, I, L;
+  float Q;
+  int failures = 0;
+
+  for (i = 0; test_cases[i].accept_language; i++) {
+    StrList acpt_lang_list(false);
+    HttpCompat::parse_comma_list(&acpt_lang_list, test_cases[i].accept_language,
+                                 (int) strlen(test_cases[i].accept_language));
+
+    Q = HttpCompat::match_accept_language(test_cases[i].content_language,
+                                          (int) strlen(test_cases[i].content_language), &acpt_lang_list, &L, &I);
+
+    if ((Q != test_cases[i].Q) || (L != test_cases[i].L) || (I != test_cases[i].I)) {
+      printf
+        ("FAILED: (#%d) got { Q = %.3f; L = %d; I = %d; }, expected { Q = %.3f; L = %d; I = %d; }, from matching\n  '%s' against '%s'\n",
+         i, Q, L, I, test_cases[i].Q, test_cases[i].L, test_cases[i].I, test_cases[i].content_language,
+         test_cases[i].accept_language);
+      ++failures;
+    }
+  }
+
+  return (failures_to_status("test_accept_language_match", failures));
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_accept_charset_match()
+{
+  bri_box("test_accept_charset_match");
+
+  struct
+  {
+    const char *content_charset;
+    const char *accept_charset;
+    float Q;
+    int I;
+  } test_cases[] = {
+    {
+    "iso-8859-1", "*", 1.0, 1}, {
+    "iso-8859-1", "iso-8859-2", 0.0, 0}, {
+    "iso-8859-1", "iso-8859", 0.0, 0}, {
+    "iso-8859-1", "iso-8859-12", 0.0, 0}, {
+    "iso-8859-1", "koi-8-r", 0.0, 0}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp;q=0.7", 0.7, 3}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp;q=0.7", 0.7, 3}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp;q=0.8, euc-jp;q=0.7", 0.8, 3}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp;q=0.7, euc-jp;q=0.8", 0.8, 4}, {
+    "euc-jp", "euc-jp;q=0.9, shift_jis, iso-2022-jp, euc-jp;q=0.7, euc-jp;q=0.8", 0.9, 1}, {
+    "EUC-JP", "euc-jp;q=0.9, shift_jis, iso-2022-jp, euc-jp, euc-jp;q=0.8", 1.0, 4}, {
+    "euc-jp", "euc-jp;q=0.9, shift_jis, iso-2022-jp, EUC-JP, euc-jp;q=0.8", 1.0, 4}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp-foobar", 0.0, 0}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp-foobar, *", 1.0, 4}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp-foobar, *;q=0.543", 0.543, 4}, {
+    "euc-jp", "shift_jis, iso-2022-jp, euc-jp-foobar, *;q=0.0", 0.0, 4}, {
+    "euc-jp", "shift_jis, iso-2022-jp, *;q=0.0, euc-jp-foobar, *;q=0.0", 0.0, 3}, {
+    "euc-jp", "shift_jis, iso-2022-jp, *;q=0.0, euc-jp-foobar, *;q=0.5", 0.5, 5}, {
+    "euc-jp", "shift_jis, iso-2022-jp, *;q=0.5, euc-jp-foobar, *;q=0.0", 0.5, 3}, {
+    "euc-jp", "shift_jis, iso-2022-jp, *;q=0.5, euc-jp-foobar, *, *;q=0.0", 1.0, 5}, {
+    "euc-jp", "shift_jis, euc-jp;hi-there;q=0.5, iso-2022-jp", 0.5, 2}, {
+    "euc-jp", "shift_jis, euc-jp;hi-there;q= 0.5, iso-2022-jp", 0.5, 2}, {
+    "euc-jp", "shift_jis, euc-jp;hi-there;q = 0.5, iso-2022-jp", 0.5, 2}, {
+    "euc-jp", "shift_jis, euc-jp;hi-there ; q = 0.5, iso-2022-jp", 0.5, 2}, {
+    "euc-jp", "shift_jis, euc-jp;hi-there ;; q = 0.5, iso-2022-jp", 0.5, 2}, {
+    "euc-jp", "shift_jis, euc-jp;hi-there ;; Q = 0.5, iso-2022-jp", 0.5, 2}, {
+    NULL, NULL, 0.0, 0}
+  };
+
+  int i, I;
+  float Q;
+  int failures = 0;
+
+  for (i = 0; test_cases[i].accept_charset; i++) {
+    StrList acpt_lang_list(false);
+    HttpCompat::parse_comma_list(&acpt_lang_list, test_cases[i].accept_charset,
+                                 (int) strlen(test_cases[i].accept_charset));
+
+    Q = HttpCompat::match_accept_charset(test_cases[i].content_charset,
+                                         (int) strlen(test_cases[i].content_charset), &acpt_lang_list, &I);
+
+    if ((Q != test_cases[i].Q) || (I != test_cases[i].I)) {
+      printf
+        ("FAILED: (#%d) got { Q = %.3f; I = %d; }, expected { Q = %.3f; I = %d; }, from matching\n  '%s' against '%s'\n",
+         i, Q, I, test_cases[i].Q, test_cases[i].I, test_cases[i].content_charset, test_cases[i].accept_charset);
+      ++failures;
+    }
+  }
+
+  return (failures_to_status("test_accept_charset_match", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_comma_vals()
+{
+  static struct
+  {
+    const char *value;
+    int value_count;
+    struct
+    {
+      int offset;
+      int len;
+    } pieces[4];
+  } tests[] = {
+    {
+      ",", 2, { {
+      0, 0}, {
+      1, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "", 1, { {
+      0, 0}, {
+      -1, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " ", 1, { {
+      0, 0}, {
+      -1, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      ", ", 2, { {
+      0, 0}, {
+      1, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      ",,", 3, { {
+      0, 0}, {
+      1, 0}, {
+      2, 0}, {
+    -1, 0}}}, {
+      " ,", 2, { {
+      0, 0}, {
+      2, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " , ", 2, { {
+      0, 0}, {
+      2, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "a, ", 2, { {
+      0, 1}, {
+      2, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " a, ", 2, { {
+      1, 1}, {
+      3, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " ,a", 2, { {
+      0, 0}, {
+      2, 1}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " , a", 2, { {
+      0, 0}, {
+      3, 1}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "a,a", 2, { {
+      0, 1}, {
+      2, 1}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "foo", 1, { {
+      0, 3}, {
+      -1, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "foo,", 2, { {
+      0, 3}, {
+      4, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "foo, ", 2, { {
+      0, 3}, {
+      4, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "foo, bar", 2, { {
+      0, 3}, {
+      5, 3}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "foo, bar,", 3, { {
+      0, 3}, {
+      5, 3}, {
+      9, 0}, {
+    -1, 0}}}, {
+      "foo, bar, ", 3, { {
+      0, 3}, {
+      5, 3}, {
+      9, 0}, {
+    -1, 0}}}, {
+      ",foo,bar,", 4, { {
+      0, 0}, {
+      1, 3}, {
+      5, 3}, {
+    9, 0}}}
+  };
+
+  bri_box("test_comma_vals");
+
+  HTTPHdr hdr;
+  char field_name[32];
+  int i, j, len, failures, ntests, ncommavals;
+
+  failures = 0;
+  ntests = sizeof(tests) / sizeof(tests[0]);
+
+  hdr.create(HTTP_TYPE_REQUEST);
+
+  for (i = 0; i < ntests; i++) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+
+    MIMEField *f = hdr.field_create(field_name, (int) strlen(field_name));
+    ink_release_assert(f->m_ptr_value == NULL);
+
+    hdr.field_attach(f);
+    ink_release_assert(f->m_ptr_value == NULL);
+
+    hdr.field_value_set(f, tests[i].value, strlen(tests[i].value));
+    ink_release_assert(f->m_ptr_value != tests[i].value);       // should be copied
+    ink_release_assert(f->m_len_value == strlen(tests[i].value));
+    ink_release_assert(memcmp(f->m_ptr_value, tests[i].value, f->m_len_value) == 0);
+
+    ncommavals = mime_field_value_get_comma_val_count(f);
+    if (ncommavals != tests[i].value_count) {
+      ++failures;
+      printf("FAILED: test #%d (field value '%s') expected val count %d, got %d\n",
+             i + 1, tests[i].value, tests[i].value_count, ncommavals);
+    }
+
+    for (j = 0; j < tests[i].value_count; j++) {
+      const char *val = mime_field_value_get_comma_val(f, &len, j);
+      int offset = ((val == NULL) ? -1 : (val - f->m_ptr_value));
+
+      if ((offset != tests[i].pieces[j].offset) || (len != tests[i].pieces[j].len)) {
+        ++failures;
+        printf
+          ("FAILED: test #%d (field value '%s', commaval idx %d) expected [offset %d, len %d], got [offset %d, len %d]\n",
+           i + 1, tests[i].value, j, tests[i].pieces[j].offset, tests[i].pieces[j].len, offset, len);
+      }
+    }
+  }
+
+  hdr.destroy();
+  return (failures_to_status("test_comma_vals", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_set_comma_vals()
+{
+  static struct
+  {
+    const char *old_raw;
+    int idx;
+    const char *slice;
+    const char *new_raw;
+  } tests[] = {
+    {
+    "a,b,c", 0, "fred", "fred, b, c"}, {
+    "a,b,c", 1, "fred", "a, fred, c"}, {
+    "a,b,c", 2, "fred", "a, b, fred"}, {
+    "a,b,c", 3, "fred", "a,b,c"}, {
+    "", 0, "", ""}, {
+    "", 0, "foo", "foo"}, {
+    "", 1, "foo", ""}, {
+    " ", 0, "", ""}, {
+    " ", 0, "foo", "foo"}, {
+    " ", 1, "foo", " "}, {
+    ",", 0, "foo", "foo, "}, {
+    ",", 1, "foo", ", foo"}, {
+    ",,", 0, "foo", "foo, , "}, {
+    ",,", 1, "foo", ", foo, "}, {
+    ",,", 2, "foo", ", , foo"}, {
+    "foo", 0, "abc", "abc"}, {
+    "foo", 1, "abc", "foo"}, {
+    "foo", 0, "abc,", "abc,"}, {
+    "foo", 0, ",abc", ",abc"}, {
+    ",,", 1, ",,,", ", ,,,, "}, {
+    " a , b , c", 0, "fred", "fred, b, c"}, {
+    " a , b , c", 1, "fred", "a, fred, c"}, {
+    " a , b , c", 2, "fred", "a, b, fred"}, {
+    " a , b , c", 3, "fred", " a , b , c"}, {
+    "    a   ,   b ", 0, "fred", "fred, b"}, {
+    "    a   ,   b ", 1, "fred", "a, fred"}, {
+    "    a   , b ", 1, "fred", "a, fred"}, {
+    "    a   ,b ", 1, "fred", "a, fred"}, {
+    "a, , , , e, , g,", 0, "fred", "fred, , , , e, , g, "}, {
+    "a, , , , e, , g,", 1, "fred", "a, fred, , , e, , g, "}, {
+    "a, , , , e, , g,", 2, "fred", "a, , fred, , e, , g, "}, {
+    "a, , , , e, , g,", 5, "fred", "a, , , , e, fred, g, "}, {
+    "a, , , , e, , g,", 7, "fred", "a, , , , e, , g, fred"}, {
+    "a, , , , e, , g,", 8, "fred", "a, , , , e, , g,"}, {
+    "a, \"boo,foo\", c", 0, "wawa", "wawa, \"boo,foo\", c"}, {
+    "a, \"boo,foo\", c", 1, "wawa", "a, wawa, c"}, {
+  "a, \"boo,foo\", c", 2, "wawa", "a, \"boo,foo\", wawa"},};
+
+  bri_box("test_set_comma_vals");
+
+  HTTPHdr hdr;
+  char field_name[32];
+  int i, failures, ntests;
+
+  failures = 0;
+  ntests = sizeof(tests) / sizeof(tests[0]);
+
+  hdr.create(HTTP_TYPE_REQUEST);
+
+  for (i = 0; i < ntests; i++) {
+    snprintf(field_name, sizeof(field_name), "Test%d", i);
+
+    MIMEField *f = hdr.field_create(field_name, (int) strlen(field_name));
+    hdr.field_value_set(f, tests[i].old_raw, strlen(tests[i].old_raw));
+    mime_field_value_set_comma_val(hdr.m_heap, hdr.m_mime, f, tests[i].idx, tests[i].slice, strlen(tests[i].slice));
+    ink_release_assert(f->m_ptr_value != NULL);
+
+    if ((f->m_len_value != strlen(tests[i].new_raw)) || (memcmp(f->m_ptr_value, tests[i].new_raw, f->m_len_value) != 0)) {
+      ++failures;
+      printf("FAILED:  test #%d (setting idx %d of '%s' to '%s') expected '%s' len %d, got '%.*s' len %d\n",
+             i + 1, tests[i].idx, tests[i].old_raw, tests[i].slice,
+             tests[i].new_raw, (int)strlen(tests[i].new_raw), f->m_len_value, f->m_ptr_value, f->m_len_value);
+    }
+  }
+
+  hdr.destroy();
+  return (failures_to_status("test_set_comma_vals", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_delete_comma_vals()
+{
+  bri_box("test_delete_comma_vals");
+  rprintf(rtest, "  HdrTest test_delete_comma_vals: TEST NOT IMPLEMENTED\n");
+  return (1);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_extend_comma_vals()
+{
+  bri_box("test_extend_comma_vals");
+  rprintf(rtest, "  HdrTest test_extend_comma_vals: TEST NOT IMPLEMENTED\n");
+  return (1);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_insert_comma_vals()
+{
+  bri_box("test_insert_comma_vals");
+  rprintf(rtest, "  HdrTest test_insert_comma_vals: TEST NOT IMPLEMENTED\n");
+  return (1);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::test_parse_comma_list()
+{
+  static struct
+  {
+    const char *value;
+    int count;
+    struct
+    {
+      int offset;
+      int len;
+    } pieces[3];
+  } tests[] = {
+    {
+      "", 1, { {
+      0, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      ",", 2, { {
+      0, 0}, {
+      1, 0}, {
+    -1, 0}}}, {
+      " ,", 2, { {
+      0, 0}, {
+      2, 0}, {
+    -1, 0}}}, {
+      ", ", 2, { {
+      0, 0}, {
+      1, 0}, {
+    -1, 0}}}, {
+      " , ", 2, { {
+      0, 0}, {
+      2, 0}, {
+    -1, 0}}}, {
+      "abc,", 2, { {
+      0, 3}, {
+      4, 0}, {
+    -1, 0}}}, {
+      "abc, ", 2, { {
+      0, 3}, {
+      4, 0}, {
+    -1, 0}}}, {
+      "", 1, { {
+      0, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " ", 1, { {
+      0, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "  ", 1, { {
+      0, 0}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "a", 1, { {
+      0, 1}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      " a", 1, { {
+      1, 1}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "  a  ", 1, { {
+      2, 1}, {
+      -1, 0}, {
+    -1, 0}}}, {
+      "abc,defg", 2, { {
+      0, 3}, {
+      4, 4}, {
+    -1, 0}}}, {
+      " abc,defg", 2, { {
+      1, 3}, {
+      5, 4}, {
+    -1, 0}}}, {
+      " abc, defg", 2, { {
+      1, 3}, {
+      6, 4}, {
+    -1, 0}}}, {
+      " abc , defg", 2, { {
+      1, 3}, {
+      7, 4}, {
+    -1, 0}}}, {
+      " abc , defg ", 2, { {
+      1, 3}, {
+      7, 4}, {
+    -1, 0}}}, {
+      " abc , defg, ", 3, { {
+      1, 3}, {
+      7, 4}, {
+    12, 0}}}, {
+      " abc , defg ,", 3, { {
+      1, 3}, {
+      7, 4}, {
+    13, 0}}}, {
+      ", abc , defg ", 3, { {
+      0, 0}, {
+      2, 3}, {
+    8, 4}}}, {
+      " ,abc , defg ", 3, { {
+      0, 0}, {
+      2, 3}, {
+    8, 4}}}, {
+      "a,b", 2, { {
+      0, 1}, {
+      2, 1}, {
+    -1, 0}}}, {
+      "a,,b", 3, { {
+      0, 1}, {
+      2, 0}, {
+    3, 1}}}, {
+      "a, ,b", 3, { {
+      0, 1}, {
+      2, 0}, {
+    4, 1}}}, {
+      "a ,,b", 3, { {
+      0, 1}, {
+      3, 0}, {
+    4, 1}}}, {
+      ",", 2, { {
+      0, 0}, {
+      1, 0}, {
+    -1, 0}}}, {
+      " ,", 2, { {
+      0, 0}, {
+      2, 0}, {
+    -1, 0}}}, {
+      ", ", 2, { {
+      0, 0}, {
+      1, 0}, {
+    -1, 0}}}, {
+      " , ", 2, { {
+      0, 0}, {
+      2, 0}, {
+    -1, 0}}}, {
+      "a,b,", 3, { {
+      0, 1}, {
+      2, 1}, {
+    4, 0}}}, {
+      "a,b, ", 3, { {
+      0, 1}, {
+      2, 1}, {
+    4, 0}}}, {
+      "a,b,  ", 3, { {
+      0, 1}, {
+      2, 1}, {
+    4, 0}}}, {
+      "a,b,  c", 3, { {
+      0, 1}, {
+      2, 1}, {
+    6, 1}}}, {
+      "a,b,  c ", 3, { {
+      0, 1}, {
+      2, 1}, {
+    6, 1}}}, {
+      "a,\"b,c\",d", 3, { {
+      0, 1}, {
+      3, 3}, {
+    8, 1}}}
+  };
+
+  bri_box("test_parse_comma_list");
+
+  int i, j, failures, ntests, offset;
+
+  failures = (offset = 0);
+  ntests = sizeof(tests) / sizeof(tests[0]);
+
+  for (i = 0; i < ntests; i++) {
+    StrList list(false);
+    HttpCompat::parse_comma_list(&list, tests[i].value);
+    if (list.count != tests[i].count) {
+      ++failures;
+      printf("FAILED: test #%d (string '%s') expected list count %d, got %d\n",
+             i + 1, tests[i].value, tests[i].count, list.count);
+    }
+
+    for (j = 0; j < tests[i].count; j++) {
+      Str *cell = list.get_idx(j);
+      if (cell != NULL)
+        offset = cell->str - tests[i].value;
+
+      if (tests[i].pieces[j].offset == -1)      // should not have a piece
+      {
+        if (cell != NULL) {
+          ++failures;
+          printf("FAILED: test #%d (string '%s', idx %d) expected NULL piece, got [offset %d len %d]\n",
+                 i + 1, tests[i].value, j, offset, (int)cell->len);
+        }
+      } else                    // should have a piece
+      {
+        if (cell == NULL) {
+          ++failures;
+          printf("FAILED: test #%d (string '%s', idx %d) expected [offset %d len %d], got NULL piece\n",
+                 i + 1, tests[i].value, j, tests[i].pieces[j].offset, tests[i].pieces[j].len);
+        } else if ((offset != tests[i].pieces[j].offset) || (cell->len != (size_t) tests[i].pieces[j].len)) {
+          ++failures;
+          printf("FAILED: test #%d (string '%s', idx %d) expected [offset %d len %d], got [offset %d len %d]\n",
+                 i + 1, tests[i].value, j, tests[i].pieces[j].offset, tests[i].pieces[j].len, offset, (int)cell->len);
+        }
+      }
+    }
+  }
+
+  return (failures_to_status("test_parse_comma_list", failures));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+HdrTest::bri_box(const char *s)
+{
+  int i, len;
+
+  len = (int) strlen(s);
+  printf("\n+-");
+  for (i = 0; i < len; i++)
+    putchar('-');
+  printf("-+\n");
+  printf("| %s |\n", s);
+  printf("+-");
+  for (i = 0; i < len; i++)
+    putchar('-');
+  printf("-+\n\n");
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+HdrTest::failures_to_status(const char *testname, int nfail)
+{
+  rprintf(rtest, "  HdrTest %s: %s\n", testname, ((nfail > 0) ? "FAILED" : "PASSED"));
+  return ((nfail > 0) ? 0 : 1);
+}
+
diff --git a/proxy/hdrs/HdrTest.h b/proxy/hdrs/HdrTest.h
new file mode 100644
index 00000000..3d17f4ec
--- /dev/null
+++ b/proxy/hdrs/HdrTest.h
@@ -0,0 +1,83 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrTest.cc
+
+   Description:
+       Unit test code for sanity checking the header system is functioning
+         properly
+
+
+ ****************************************************************************/
+
+#ifndef _HdrTest_H_
+#define _HdrTest_H_
+
+#include "Regression.h"
+
+class HdrTest
+{
+public:
+  RegressionTest * rtest;
+
+  HdrTest():rtest(NULL)
+  {
+  };
+  ~HdrTest() {
+  };
+
+  int go(RegressionTest * t, int atype);
+
+private:
+  int test_error_page_selection();
+  int test_http_hdr_print_and_copy();
+  int test_parse_date();
+  int test_format_date();
+  int test_url();
+  int test_http_parser_eos_boundary_cases();
+  int test_arena();
+  int test_regex();
+  int test_accept_language_match();
+  int test_accept_charset_match();
+  int test_comma_vals();
+  int test_set_comma_vals();
+  int test_delete_comma_vals();
+  int test_extend_comma_vals();
+  int test_insert_comma_vals();
+  int test_parse_comma_list();
+  int test_mime();
+  int test_http();
+  int test_http_mutation();
+
+  int test_http_hdr_print_and_copy_aux(int testnum, const char *req, const char *req_tgt, const char *rsp,
+                                       const char *rsp_tgt);
+  int test_http_hdr_copy_over_aux(int testnum, const char *request, const char *response);
+  int test_http_aux(const char *request, const char *response);
+  int test_arena_aux(Arena * arena, int len);
+  void bri_box(const char *s);
+  int failures_to_status(const char *testname, int nfail);
+};
+
+#endif
diff --git a/proxy/hdrs/HdrToken.cc b/proxy/hdrs/HdrToken.cc
new file mode 100644
index 00000000..7080a060
--- /dev/null
+++ b/proxy/hdrs/HdrToken.cc
@@ -0,0 +1,767 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include <stdio.h>
+#include "Allocator.h"
+#include "Compatability.h"
+#include "HTTP.h"
+#include "HdrToken.h"
+#include "MIME.h"
+#include "Regex.h"
+#include "URL.h"
+
+/* 
+ You SHOULD add to _hdrtoken_commonly_tokenized_strs, with the same ordering
+ ** important, ordering matters **
+ 
+ You want a regexp like 'Accept' after "greedier" choices so it doesn't match 'Accept-Ranges' earlier than
+ it should. The regexp are anchored (^Accept), but I dont see a way with the current system to 
+ match the word ONLY without making _hdrtoken_strs a real PCRE, but then that breaks the hashing
+ hdrtoken_hash("^Accept$") != hdrtoken_hash("Accept")
+ 
+ So, the current hack is to have "Accept" follow "Accept-.*", lame, I know
+ 
+  /ericb
+*/
+
+static const char *_hdrtoken_strs[] = {
+  // MIME Field names
+  "Accept-Charset",
+  "Accept-Encoding",
+  "Accept-Language",
+  "Accept-Ranges",
+  "Accept",
+  "Age",
+  "Allow",
+  "Approved",                   // NNTP
+  "Authorization",
+  "Bytes",                      // NNTP
+  "Cache-Control",
+  "Client-ip",
+  "Connection",
+  "Content-Base",
+  "Content-Encoding",
+  "Content-Language",
+  "Content-Length",
+  "Content-Location",
+  "Content-MD5",
+  "Content-Range",
+  "Content-Type",
+  "Control",                    // NNTP
+  "Cookie",
+  "Date",
+  "Distribution",               // NNTP
+  "Etag",
+  "Expect",
+  "Expires",
+  "Followup-To",                // NNTP
+  "From",
+  "Host",
+  "If-Match",
+  "If-Modified-Since",
+  "If-None-Match",
+  "If-Range",
+  "If-Unmodified-Since",
+  "Keep-Alive",
+  "Keywords",                   // NNTP
+  "Last-Modified",
+  "Lines",                      // NNTP
+  "Location",
+  "Max-Forwards",
+  "Message-ID",                 // NNTP
+  "MIME-Version",
+  "Newsgroups",                 // NNTP
+  "Organization",               // NNTP
+  "Path",                       // NNTP
+  "Pragma",
+  "Proxy-Authenticate",
+  "Proxy-Authorization",
+  "Proxy-Connection",
+  "Public",
+  "Range",
+  "References",                 // NNTP
+  "Referer",
+  "Reply-To",                   // NNTP
+  "Retry-After",
+  "Sender",                     // NNTP
+  "Server",
+  "Set-Cookie",
+  "Subject",                    // NNTP
+  "Summary",                    // NNTP
+  "Transfer-Encoding",
+  "Upgrade",
+  "User-Agent",
+  "Vary",
+  "Via",
+  "Warning",
+  "Www-Authenticate",
+  "Xref",                       // NNTP
+  "@DataInfo",                  // Internal Hack
+  
+  // Accept-Encoding
+  "compress",
+  "deflate",
+  "gzip",
+  "identity",
+  
+  // Cache-Control flags
+  "max-age",
+  "max-stale",
+  "min-fresh",
+  "must-revalidate",
+  "no-cache",
+  "no-store",
+  "no-transform",
+  "only-if-cached",
+  "private",
+  "proxy-revalidate",
+  "s-maxage",
+  "need-revalidate-once",
+  
+  // HTTP miscellaneous
+  "none",
+  "chunked",
+  "close",
+  
+  // WS
+  "websocket",
+  "Sec-WebSocket-Key",
+  "Sec-WebSocket-Version",
+
+  // URL schemes
+  "file",
+  "ftp",
+  "gopher",
+  "https",
+  "http",
+  "mailto",
+  "news",
+  "nntp",
+  "prospero",
+  "telnet",
+  "tunnel",
+  "wais",
+  "pnm",
+  "rtspu",
+  "rtsp",
+  "mmsu",
+  "mmst",
+  "mms",
+  "wss",
+  "ws",
+  
+  // HTTP methods
+  "CONNECT",
+  "DELETE",
+  "GET",
+  "POST",
+  "HEAD",
+  "ICP_QUERY",
+  "OPTIONS",
+  "PURGE",
+  "PUT",
+  "TRACE",
+  "PUSH",
+  
+  // Header extensions
+  "X-ID",
+  "X-Forwarded-For",
+  "TE",
+  "Strict-Transport-Security",
+  "100-continue"
+};
+
+static HdrTokenTypeBinding _hdrtoken_strs_type_initializers[] = {
+  {"file", HDRTOKEN_TYPE_SCHEME},
+  {"ftp", HDRTOKEN_TYPE_SCHEME},
+  {"gopher", HDRTOKEN_TYPE_SCHEME},
+  {"http", HDRTOKEN_TYPE_SCHEME},
+  {"https", HDRTOKEN_TYPE_SCHEME},
+  {"mailto", HDRTOKEN_TYPE_SCHEME},
+  {"news", HDRTOKEN_TYPE_SCHEME},
+  {"nntp", HDRTOKEN_TYPE_SCHEME},
+  {"prospero", HDRTOKEN_TYPE_SCHEME},
+  {"telnet", HDRTOKEN_TYPE_SCHEME},
+  {"tunnel", HDRTOKEN_TYPE_SCHEME},
+  {"wais", HDRTOKEN_TYPE_SCHEME},
+  {"pnm", HDRTOKEN_TYPE_SCHEME},
+  {"rtsp", HDRTOKEN_TYPE_SCHEME},
+  {"rtspu", HDRTOKEN_TYPE_SCHEME},
+  {"mms", HDRTOKEN_TYPE_SCHEME},
+  {"mmsu", HDRTOKEN_TYPE_SCHEME},
+  {"mmst", HDRTOKEN_TYPE_SCHEME},
+  {"wss", HDRTOKEN_TYPE_SCHEME},
+  {"ws", HDRTOKEN_TYPE_SCHEME},
+
+  {"CONNECT", HDRTOKEN_TYPE_METHOD},
+  {"DELETE", HDRTOKEN_TYPE_METHOD},
+  {"GET", HDRTOKEN_TYPE_METHOD},
+  {"HEAD", HDRTOKEN_TYPE_METHOD},
+  {"ICP_QUERY", HDRTOKEN_TYPE_METHOD},
+  {"OPTIONS", HDRTOKEN_TYPE_METHOD},
+  {"POST", HDRTOKEN_TYPE_METHOD},
+  {"PURGE", HDRTOKEN_TYPE_METHOD},
+  {"PUT", HDRTOKEN_TYPE_METHOD},
+  {"TRACE", HDRTOKEN_TYPE_METHOD},
+  {"PUSH", HDRTOKEN_TYPE_METHOD},
+
+  {"max-age", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"max-stale", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"min-fresh", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"must-revalidate", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"no-cache", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"no-store", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"no-transform", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"only-if-cached", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"private", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"proxy-revalidate", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"public", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"s-maxage", HDRTOKEN_TYPE_CACHE_CONTROL},
+  {"need-revalidate-once", HDRTOKEN_TYPE_CACHE_CONTROL},
+
+  {(char *) NULL, (HdrTokenType) 0}
+};
+
+
+static HdrTokenFieldInfo _hdrtoken_strs_field_initializers[] = {
+  {"Accept", MIME_SLOTID_ACCEPT, MIME_PRESENCE_ACCEPT, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Accept-Charset", MIME_SLOTID_ACCEPT_CHARSET, MIME_PRESENCE_ACCEPT_CHARSET, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Accept-Encoding", MIME_SLOTID_ACCEPT_ENCODING, MIME_PRESENCE_ACCEPT_ENCODING, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Accept-Language", MIME_SLOTID_ACCEPT_LANGUAGE, MIME_PRESENCE_ACCEPT_LANGUAGE, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Accept-Ranges", MIME_SLOTID_NONE, MIME_PRESENCE_ACCEPT_RANGES, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Age", MIME_SLOTID_AGE, MIME_PRESENCE_AGE, HTIF_NONE},
+  {"Allow", MIME_SLOTID_NONE, MIME_PRESENCE_ALLOW, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Approved", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Authorization", MIME_SLOTID_AUTHORIZATION, MIME_PRESENCE_AUTHORIZATION, HTIF_NONE},
+  {"Bytes", MIME_SLOTID_NONE, MIME_PRESENCE_BYTES, HTIF_NONE},
+  {"Cache-Control", MIME_SLOTID_CACHE_CONTROL, MIME_PRESENCE_CACHE_CONTROL, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Client-ip", MIME_SLOTID_CLIENT_IP, MIME_PRESENCE_CLIENT_IP, HTIF_NONE},
+  {"Connection", MIME_SLOTID_CONNECTION, MIME_PRESENCE_CONNECTION, (HTIF_COMMAS | HTIF_MULTVALS | HTIF_HOPBYHOP)},
+  {"Content-Base", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Content-Encoding", MIME_SLOTID_CONTENT_ENCODING, MIME_PRESENCE_CONTENT_ENCODING, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Content-Language", MIME_SLOTID_CONTENT_LANGUAGE, MIME_PRESENCE_CONTENT_LANGUAGE, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Content-Length", MIME_SLOTID_CONTENT_LENGTH, MIME_PRESENCE_CONTENT_LENGTH, HTIF_NONE},
+  {"Content-Location", MIME_SLOTID_NONE, MIME_PRESENCE_CONTENT_LOCATION, HTIF_NONE},
+  {"Content-MD5", MIME_SLOTID_NONE, MIME_PRESENCE_CONTENT_MD5, HTIF_NONE},
+  {"Content-Range", MIME_SLOTID_NONE, MIME_PRESENCE_CONTENT_RANGE, HTIF_NONE},
+  {"Content-Type", MIME_SLOTID_CONTENT_TYPE, MIME_PRESENCE_CONTENT_TYPE, HTIF_NONE},
+  {"Control", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Cookie", MIME_SLOTID_COOKIE, MIME_PRESENCE_COOKIE, (HTIF_MULTVALS)},
+  {"Date", MIME_SLOTID_DATE, MIME_PRESENCE_DATE, HTIF_NONE},
+  {"Distribution", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Etag", MIME_SLOTID_NONE, MIME_PRESENCE_ETAG, HTIF_NONE},
+  {"Expires", MIME_SLOTID_EXPIRES, MIME_PRESENCE_EXPIRES, HTIF_NONE},
+  {"Followup-To", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"From", MIME_SLOTID_NONE, MIME_PRESENCE_FROM, HTIF_NONE},
+  {"Host", MIME_SLOTID_NONE, MIME_PRESENCE_HOST, HTIF_NONE},
+  {"If-Match", MIME_SLOTID_IF_MATCH, MIME_PRESENCE_IF_MATCH, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"If-Modified-Since", MIME_SLOTID_IF_MODIFIED_SINCE, MIME_PRESENCE_IF_MODIFIED_SINCE, HTIF_NONE},
+  {"If-None-Match", MIME_SLOTID_IF_NONE_MATCH, MIME_PRESENCE_IF_NONE_MATCH, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"If-Range", MIME_SLOTID_IF_RANGE, MIME_PRESENCE_IF_RANGE, HTIF_NONE},
+  {"If-Unmodified-Since", MIME_SLOTID_IF_UNMODIFIED_SINCE, MIME_PRESENCE_IF_UNMODIFIED_SINCE, HTIF_NONE},
+  {"Keep-Alive", MIME_SLOTID_NONE, MIME_PRESENCE_KEEP_ALIVE, (HTIF_HOPBYHOP)},
+  {"Keywords", MIME_SLOTID_NONE, MIME_PRESENCE_KEYWORDS, HTIF_NONE},
+  {"Last-Modified", MIME_SLOTID_LAST_MODIFIED, MIME_PRESENCE_LAST_MODIFIED, HTIF_NONE},
+  {"Lines", MIME_SLOTID_NONE, MIME_PRESENCE_LINES, HTIF_NONE},
+  {"Location", MIME_SLOTID_NONE, MIME_PRESENCE_LOCATION, (HTIF_MULTVALS)},
+  {"Max-Forwards", MIME_SLOTID_NONE, MIME_PRESENCE_MAX_FORWARDS, HTIF_NONE},
+  {"Message-ID", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Newsgroups", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Organization", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Path", MIME_SLOTID_NONE, MIME_PRESENCE_PATH, HTIF_NONE},
+  {"Pragma", MIME_SLOTID_PRAGMA, MIME_PRESENCE_PRAGMA, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Proxy-Authenticate", MIME_SLOTID_NONE, MIME_PRESENCE_PROXY_AUTHENTICATE, (HTIF_HOPBYHOP | HTIF_PROXYAUTH)},
+  {"Proxy-Authorization", MIME_SLOTID_NONE, MIME_PRESENCE_PROXY_AUTHORIZATION, (HTIF_HOPBYHOP | HTIF_PROXYAUTH)},
+  {"Proxy-Connection", MIME_SLOTID_PROXY_CONNECTION, MIME_PRESENCE_PROXY_CONNECTION,
+   (HTIF_COMMAS | HTIF_MULTVALS | HTIF_HOPBYHOP)},
+  {"Public", MIME_SLOTID_NONE, MIME_PRESENCE_PUBLIC, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Range", MIME_SLOTID_RANGE, MIME_PRESENCE_RANGE, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"References", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Referer", MIME_SLOTID_NONE, MIME_PRESENCE_REFERER, HTIF_NONE},
+  {"Reply-To", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Retry-After", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Sender", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Server", MIME_SLOTID_NONE, MIME_PRESENCE_SERVER, HTIF_NONE},
+  {"Set-Cookie", MIME_SLOTID_SET_COOKIE, MIME_PRESENCE_SET_COOKIE, (HTIF_MULTVALS)},
+  {"Strict-Transport-Security", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, (HTIF_MULTVALS)},
+  {"Subject", MIME_SLOTID_NONE, MIME_PRESENCE_SUBJECT, HTIF_NONE},
+  {"Summary", MIME_SLOTID_NONE, MIME_PRESENCE_SUMMARY, HTIF_NONE},
+  {"TE", MIME_SLOTID_TE, MIME_PRESENCE_TE, (HTIF_COMMAS | HTIF_MULTVALS | HTIF_HOPBYHOP)},
+  {"Transfer-Encoding", MIME_SLOTID_TRANSFER_ENCODING, MIME_PRESENCE_TRANSFER_ENCODING, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Upgrade", MIME_SLOTID_NONE, MIME_PRESENCE_UPGRADE, (HTIF_COMMAS | HTIF_MULTVALS | HTIF_HOPBYHOP)},
+  {"User-Agent", MIME_SLOTID_USER_AGENT, MIME_PRESENCE_USER_AGENT, HTIF_NONE},
+  {"Vary", MIME_SLOTID_VARY, MIME_PRESENCE_VARY, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Via", MIME_SLOTID_VIA, MIME_PRESENCE_VIA, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Warning", MIME_SLOTID_NONE, MIME_PRESENCE_WARNING, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Www-Authenticate", MIME_SLOTID_WWW_AUTHENTICATE, MIME_PRESENCE_WWW_AUTHENTICATE, HTIF_NONE},
+  {"Xref", MIME_SLOTID_NONE, MIME_PRESENCE_XREF, HTIF_NONE},
+  {"@DataInfo", MIME_SLOTID_NONE, MIME_PRESENCE_INT_DATA_INFO, HTIF_NONE},
+  {"X-ID", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, (HTIF_COMMAS | HTIF_MULTVALS | HTIF_HOPBYHOP)},
+  {"X-Forwarded-For", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, (HTIF_COMMAS | HTIF_MULTVALS)},
+  {"Sec-WebSocket-Key", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {"Sec-WebSocket-Version", MIME_SLOTID_NONE, MIME_PRESENCE_NONE, HTIF_NONE},
+  {NULL, 0, 0, 0}
+};
+
+const char *_hdrtoken_strs_heap_f = NULL;       // storage first byte
+const char *_hdrtoken_strs_heap_l = NULL;       // storage last byte
+
+int hdrtoken_num_wks = SIZEOF(_hdrtoken_strs);  // # of well-known strings
+
+const char *hdrtoken_strs[SIZEOF(_hdrtoken_strs)];      // wks_idx -> heap ptr
+int hdrtoken_str_lengths[SIZEOF(_hdrtoken_strs)];       // wks_idx -> length
+HdrTokenType hdrtoken_str_token_types[SIZEOF(_hdrtoken_strs)];  // wks_idx -> token type
+int32_t hdrtoken_str_slotids[SIZEOF(_hdrtoken_strs)];     // wks_idx -> slot id
+uint64_t hdrtoken_str_masks[SIZEOF(_hdrtoken_strs)];      // wks_idx -> presence mask
+uint32_t hdrtoken_str_flags[SIZEOF(_hdrtoken_strs)];      // wks_idx -> flags
+
+DFA *hdrtoken_strs_dfa = NULL;
+
+/***********************************************************************
+ *                                                                     *
+ *                        H A S H    T A B L E                         *
+ *                                                                     *
+ ***********************************************************************/
+
+#define	HDRTOKEN_HASH_TABLE_SIZE	65536
+#define	HDRTOKEN_HASH_TABLE_MASK	HDRTOKEN_HASH_TABLE_SIZE-1
+
+struct HdrTokenHashBucket
+{
+  const char *wks;
+  uint32_t hash;
+};
+
+HdrTokenHashBucket hdrtoken_hash_table[HDRTOKEN_HASH_TABLE_SIZE];
+
+/**
+  basic FNV hash
+**/
+#define TINY_MASK(x) (((u_int32_t)1<<(x))-1)
+
+inline uint32_t
+hash_to_slot(uint32_t hash)
+{
+  return ((hash>>15) ^ hash) & TINY_MASK(15);
+}
+
+inline uint32_t
+hdrtoken_hash(const unsigned char *string, unsigned int length)
+{
+  static const uint32_t InitialFNV = 2166136261U;
+  static const int32_t FNVMultiple = 16777619;
+
+  uint32_t hash = InitialFNV;
+
+  for (size_t i = 0; i < length; i++)  {
+      hash = hash ^ (toupper(string[i])); 
+      hash = hash * FNVMultiple;          
+  }
+
+  return hash;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+static const char *_hdrtoken_commonly_tokenized_strs[] = {
+  // MIME Field names
+  "Accept-Charset",
+  "Accept-Encoding",
+  "Accept-Language",
+  "Accept-Ranges",
+  "Accept",
+  "Age",
+  "Allow",
+  "Approved",                   // NNTP
+  "Authorization",
+  "Bytes",                      // NNTP
+  "Cache-Control",
+  "Client-ip",
+  "Connection",
+  "Content-Base",
+  "Content-Encoding",
+  "Content-Language",
+  "Content-Length",
+  "Content-Location",
+  "Content-MD5",
+  "Content-Range",
+  "Content-Type",
+  "Control",                    // NNTP
+  "Cookie",
+  "Date",
+  "Distribution",               // NNTP
+  "Etag",
+  "Expect",
+  "Expires",
+  "Followup-To",                // NNTP
+  "From",
+  "Host",
+  "If-Match",
+  "If-Modified-Since",
+  "If-None-Match",
+  "If-Range",
+  "If-Unmodified-Since",
+  "Keep-Alive",
+  "Keywords",                   // NNTP
+  "Last-Modified",
+  "Lines",                      // NNTP
+  "Location",
+  "Max-Forwards",
+  "Message-ID",                 // NNTP
+  "MIME-Version",
+  "Newsgroups",                 // NNTP
+  "Organization",               // NNTP
+  "Path",                       // NNTP
+  "Pragma",
+  "Proxy-Authenticate",
+  "Proxy-Authorization",
+  "Proxy-Connection",
+  "Public",
+  "Range",
+  "References",                 // NNTP
+  "Referer",
+  "Reply-To",                   // NNTP
+  "Retry-After",
+  "Sender",                     // NNTP
+  "Server",
+  "Set-Cookie",
+  "Subject",                    // NNTP
+  "Summary",                    // NNTP
+  "Transfer-Encoding",
+  "Upgrade",
+  "User-Agent",
+  "Vary",
+  "Via",
+  "Warning",
+  "Www-Authenticate",
+  "Xref",                       // NNTP
+  "@DataInfo",                  // Internal Hack
+  
+  // Accept-Encoding
+  "compress",
+  "deflate",
+  "gzip",
+  "identity",
+  
+  // Cache-Control flags
+  "max-age",
+  "max-stale",
+  "min-fresh",
+  "must-revalidate",
+  "no-cache",
+  "no-store",
+  "no-transform",
+  "only-if-cached",
+  "private",
+  "proxy-revalidate",
+  "s-maxage",
+  "need-revalidate-once",
+  
+  // HTTP miscellaneous
+  "none",
+  "chunked",
+  "close",
+  
+  // WS
+  "websocket",
+  "Sec-WebSocket-Key",
+  "Sec-WebSocket-Version",
+
+  // URL schemes
+  "file",
+  "ftp",
+  "gopher",
+  "https",
+  "http",
+  "mailto",
+  "news",
+  "nntp",
+  "prospero",
+  "telnet",
+  "tunnel",
+  "wais",
+  "pnm",
+  "rtspu",
+  "rtsp",
+  "mmsu",
+  "mmst",
+  "mms",
+  "wss",
+  "ws",
+  
+  // HTTP methods
+  "CONNECT",
+  "DELETE",
+  "GET",
+  "POST",
+  "HEAD",
+  "ICP_QUERY",
+  "OPTIONS",
+  "PURGE",
+  "PUT",
+  "TRACE",
+  "PUSH",
+  
+  // Header extensions
+  "X-ID",
+  "X-Forwarded-For",
+  "TE",
+  "Strict-Transport-Security",
+  "100-continue"
+};
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+hdrtoken_hash_init()
+{
+  uint32_t i;
+  int num_collisions;
+
+  memset(hdrtoken_hash_table, 0, sizeof(hdrtoken_hash_table));
+  num_collisions = 0;
+
+  for (i = 0; i < (int) SIZEOF(_hdrtoken_commonly_tokenized_strs); i++) {
+    // convert the common string to the well-known token
+    unsigned const char *wks;
+    int wks_idx = hdrtoken_tokenize_dfa(_hdrtoken_commonly_tokenized_strs[i],
+                                        (int) strlen(_hdrtoken_commonly_tokenized_strs[i]),
+                                        (const char **) &wks);
+    ink_release_assert(wks_idx >= 0);
+
+    uint32_t hash = hdrtoken_hash(wks, hdrtoken_str_lengths[wks_idx]);
+    uint32_t slot = hash_to_slot(hash);
+
+    if (hdrtoken_hash_table[slot].wks) {
+      printf("ERROR: hdrtoken_hash_table[%u] collision: '%s' replacing '%s'\n",
+             slot, (const char*)wks, hdrtoken_hash_table[slot].wks);
+      ++num_collisions;
+    }
+    hdrtoken_hash_table[slot].wks = (const char *)wks;
+    hdrtoken_hash_table[slot].hash = hash;
+  }
+
+  if (num_collisions > 0)
+    abort();
+}
+
+
+/***********************************************************************
+ *                                                                     *
+ *                 M A I N    H D R T O K E N    C O D E               *
+ *                                                                     *
+ ***********************************************************************/
+
+/**
+  @return returns 0 for n=0, unit*n for n <= unit
+*/
+
+static inline unsigned int
+snap_up_to_multiple(unsigned int n, unsigned int unit)
+{
+  return ((n + (unit - 1)) / unit) * unit;
+}
+
+/**
+*/
+void
+hdrtoken_init()
+{
+  static int inited = 0;
+
+  int i;
+
+  if (!inited) {
+    inited = 1;
+
+    hdrtoken_strs_dfa = new DFA;
+    hdrtoken_strs_dfa->compile(_hdrtoken_strs, SIZEOF(_hdrtoken_strs), (REFlags) (RE_CASE_INSENSITIVE));
+
+    // all the tokenized hdrtoken strings are placed in a special heap,
+    // and each string is prepended with a HdrTokenHeapPrefix ---
+    // this makes it easy to tell that a string is a tokenized
+    // string (because its address is within the heap), and
+    // makes it easy to find the length, index, flags, mask, and
+    // other info from the prefix.
+
+    int heap_size = 0;
+    for (i = 0; i < (int) SIZEOF(_hdrtoken_strs); i++) {
+      hdrtoken_str_lengths[i] = (int) strlen(_hdrtoken_strs[i]);
+      int sstr_len = snap_up_to_multiple(hdrtoken_str_lengths[i] + 1, sizeof(HdrTokenHeapPrefix));
+      int packed_prefix_str_len = sizeof(HdrTokenHeapPrefix) + sstr_len;
+      heap_size += packed_prefix_str_len;
+    }
+
+    _hdrtoken_strs_heap_f = (const char *)ats_malloc(heap_size);
+    _hdrtoken_strs_heap_l = _hdrtoken_strs_heap_f + heap_size - 1;
+
+    char *heap_ptr = (char *) _hdrtoken_strs_heap_f;
+
+    for (i = 0; i < (int) SIZEOF(_hdrtoken_strs); i++) {
+      HdrTokenHeapPrefix prefix;
+
+      memset(&prefix, 0, sizeof(HdrTokenHeapPrefix));
+
+      prefix.wks_idx = i;
+      prefix.wks_length = hdrtoken_str_lengths[i];
+      prefix.wks_token_type = HDRTOKEN_TYPE_OTHER;      // default, can override later
+      prefix.wks_info.name = NULL;      // default, can override later
+      prefix.wks_info.slotid = MIME_SLOTID_NONE;        // default, can override later
+      prefix.wks_info.mask = TOK_64_CONST(0);   // default, can override later
+      prefix.wks_info.flags = MIME_FLAGS_MULTVALS;      // default, can override later
+
+      int sstr_len = snap_up_to_multiple(hdrtoken_str_lengths[i] + 1, sizeof(HdrTokenHeapPrefix));
+
+      *(HdrTokenHeapPrefix *) heap_ptr = prefix;        // set string prefix
+      heap_ptr += sizeof(HdrTokenHeapPrefix);   // advance heap ptr past index
+      hdrtoken_strs[i] = heap_ptr;      // record string pointer
+      // coverity[secure_coding]
+      ink_strlcpy((char *) hdrtoken_strs[i], _hdrtoken_strs[i], heap_size - sizeof(HdrTokenHeapPrefix));     // copy string into heap
+      heap_ptr += sstr_len;     // advance heap ptr past string
+      heap_size -= sstr_len;
+    }
+
+    // Set the token types for certain tokens
+    for (i = 0; _hdrtoken_strs_type_initializers[i].name != NULL; i++) {
+      int wks_idx;
+      HdrTokenHeapPrefix *prefix;
+
+      wks_idx = hdrtoken_tokenize_dfa(_hdrtoken_strs_type_initializers[i].name,
+                                      (int) strlen(_hdrtoken_strs_type_initializers[i].name));
+
+      ink_assert((wks_idx >= 0) && (wks_idx < (int) SIZEOF(hdrtoken_strs)));
+      // coverity[negative_returns]
+      prefix = hdrtoken_index_to_prefix(wks_idx);
+      prefix->wks_token_type = _hdrtoken_strs_type_initializers[i].type;
+    }
+
+    // Set special data for field names
+    for (i = 0; _hdrtoken_strs_field_initializers[i].name != NULL; i++) {
+      int wks_idx;
+      HdrTokenHeapPrefix *prefix;
+
+      wks_idx = hdrtoken_tokenize_dfa(_hdrtoken_strs_field_initializers[i].name,
+                                      (int) strlen(_hdrtoken_strs_field_initializers[i].name));
+
+      ink_assert((wks_idx >= 0) && (wks_idx < (int) SIZEOF(hdrtoken_strs)));
+      prefix = hdrtoken_index_to_prefix(wks_idx);
+      prefix->wks_info.slotid = _hdrtoken_strs_field_initializers[i].slotid;
+      prefix->wks_info.flags = _hdrtoken_strs_field_initializers[i].flags;
+      prefix->wks_info.mask = _hdrtoken_strs_field_initializers[i].mask;
+    }
+
+    for (i = 0; i < (int) SIZEOF(_hdrtoken_strs); i++) {
+      HdrTokenHeapPrefix *prefix = hdrtoken_index_to_prefix(i);
+      prefix->wks_info.name = hdrtoken_strs[i];
+      hdrtoken_str_token_types[i] = prefix->wks_token_type;     // parallel array for speed
+      hdrtoken_str_slotids[i] = prefix->wks_info.slotid;        // parallel array for speed
+      hdrtoken_str_masks[i] = prefix->wks_info.mask;    // parallel array for speed
+      hdrtoken_str_flags[i] = prefix->wks_info.flags;   // parallel array for speed
+    }
+
+    hdrtoken_hash_init();
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+hdrtoken_tokenize_dfa(const char *string, int string_len, const char **wks_string_out)
+{
+  int wks_idx;
+  
+  wks_idx = hdrtoken_strs_dfa->match(string, string_len);
+
+  if (wks_idx < 0)
+    wks_idx = -1;
+  if (wks_string_out) {
+    if (wks_idx >= 0)
+      *wks_string_out = hdrtoken_index_to_wks(wks_idx);
+    else
+      *wks_string_out = NULL;
+  }
+  //printf("hdrtoken_tokenize_dfa(%d,*s) - return %d\n",string_len,string,wks_idx);
+
+  return wks_idx;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+hdrtoken_tokenize(const char *string, int string_len, const char **wks_string_out)
+{
+  int wks_idx;
+  HdrTokenHashBucket *bucket;
+
+  ink_assert(string != NULL);
+
+  if (hdrtoken_is_wks(string)) {
+    wks_idx = hdrtoken_wks_to_index(string);
+    if (wks_string_out)
+      *wks_string_out = string;
+    return wks_idx;
+  }
+
+  uint32_t hash = hdrtoken_hash((const unsigned char *) string, (unsigned int) string_len);
+  uint32_t slot = hash_to_slot(hash);
+
+  bucket = &(hdrtoken_hash_table[slot]);
+  if ((bucket->wks != NULL) &&
+      (bucket->hash == hash) &&
+      (hdrtoken_wks_to_length(bucket->wks) == string_len)) {
+    wks_idx = hdrtoken_wks_to_index(bucket->wks);
+    if (wks_string_out)
+      *wks_string_out = bucket->wks;
+    return wks_idx;
+  }
+
+  Debug("hdr_token", "Did not find a WKS for '%.*s'", string_len, string);
+  return -1;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+hdrtoken_string_to_wks(const char *string)
+{
+  const char *wks = NULL;
+  hdrtoken_tokenize(string, (int) strlen(string), &wks);
+  return wks;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+hdrtoken_string_to_wks(const char *string, int length)
+{
+  const char *wks = NULL;
+  hdrtoken_tokenize(string, length, &wks);
+  return wks;
+}
diff --git a/proxy/hdrs/HdrToken.h b/proxy/hdrs/HdrToken.h
new file mode 100644
index 00000000..95dc95c0
--- /dev/null
+++ b/proxy/hdrs/HdrToken.h
@@ -0,0 +1,391 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __HDRTOKEN_H__
+#define __HDRTOKEN_H__
+
+#include <assert.h>
+#include <sys/types.h>
+#include "ink_assert.h"
+#include "ink_atomic.h"
+#include "ink_defs.h"
+#include "ink_string.h"
+#include "Allocator.h"
+#include "Regex.h"
+#include "ink_apidefs.h"
+
+////////////////////////////////////////////////////////////////////////////
+//
+//      tokenized string data
+//
+////////////////////////////////////////////////////////////////////////////
+
+#define SIZEOF(x)   (sizeof (x) / sizeof (x[0]))
+
+enum HdrTokenType
+{
+  HDRTOKEN_TYPE_OTHER = 0,
+  HDRTOKEN_TYPE_FIELD = 1,
+  HDRTOKEN_TYPE_METHOD = 2,
+  HDRTOKEN_TYPE_SCHEME = 3,
+  HDRTOKEN_TYPE_CACHE_CONTROL = 4
+};
+
+struct HdrTokenTypeBinding
+{
+  const char *name;
+  HdrTokenType type;
+};
+
+struct HdrTokenFieldInfo
+{
+  const char *name;
+  int32_t slotid;
+  uint64_t mask;
+  uint32_t flags;
+};
+
+struct HdrTokenTypeSpecific
+{
+  union
+  {
+    struct
+    {
+      uint32_t cc_mask;
+    } cache_control;
+  } u;
+};
+
+struct HdrTokenHeapPrefix
+{
+  int wks_idx;
+  int wks_length;
+  HdrTokenType wks_token_type;
+  HdrTokenFieldInfo wks_info;
+  HdrTokenTypeSpecific wks_type_specific;
+};
+
+enum HdrTokenInfoFlags
+{
+  HTIF_NONE = 0,
+  HTIF_COMMAS = 1 << 0,
+  HTIF_MULTVALS = 1 << 1,
+  HTIF_HOPBYHOP = 1 << 2,
+  HTIF_PROXYAUTH = 1 << 3
+};
+
+#define MIME_FLAGS_NONE		HTIF_NONE
+#define MIME_FLAGS_COMMAS	HTIF_COMMAS
+#define MIME_FLAGS_MULTVALS	HTIF_MULTVALS
+#define MIME_FLAGS_HOPBYHOP	HTIF_HOPBYHOP
+#define MIME_FLAGS_PROXYAUTH	HTIF_PROXYAUTH
+
+extern DFA *hdrtoken_strs_dfa;
+extern int hdrtoken_num_wks;
+
+extern const char *hdrtoken_strs[];
+extern int hdrtoken_str_lengths[];
+extern HdrTokenType hdrtoken_str_token_types[];
+extern int32_t hdrtoken_str_slotids[];
+extern uint64_t hdrtoken_str_masks[];
+extern uint32_t hdrtoken_str_flags[];
+
+////////////////////////////////////////////////////////////////////////////
+//
+//      tokenized string functions
+//
+////////////////////////////////////////////////////////////////////////////
+
+extern void hdrtoken_init();
+extern int hdrtoken_tokenize_dfa(const char *string, int string_len, const char **wks_string_out = NULL);
+inkcoreapi extern int hdrtoken_tokenize(const char *string, int string_len, const char **wks_string_out = NULL);
+extern const char *hdrtoken_string_to_wks(const char *string);
+extern const char *hdrtoken_string_to_wks(const char *string, int length);
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+hdrtoken_is_wks(const char *str)
+{
+  extern const char *_hdrtoken_strs_heap_f;
+  extern const char *_hdrtoken_strs_heap_l;
+
+  return ((str >= _hdrtoken_strs_heap_f) && (str <= _hdrtoken_strs_heap_l));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+hdrtoken_is_valid_wks_idx(int wks_idx)
+{
+  return ((wks_idx >= 0) && (wks_idx < hdrtoken_num_wks));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline HdrTokenHeapPrefix *
+hdrtoken_wks_to_prefix(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  return ((HdrTokenHeapPrefix *) (wks - sizeof(HdrTokenHeapPrefix)));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+hdrtoken_index_to_wks(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_strs[wks_idx];
+}
+
+inline int
+hdrtoken_index_to_length(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_str_lengths[wks_idx];
+}
+
+inline HdrTokenType
+hdrtoken_index_to_token_type(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_str_token_types[wks_idx];
+}
+
+inline int
+hdrtoken_index_to_slotid(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_str_slotids[wks_idx];
+}
+
+inline uint64_t
+hdrtoken_index_to_mask(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_str_masks[wks_idx];
+}
+
+inline int
+hdrtoken_index_to_flags(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_str_flags[wks_idx];
+}
+
+inline HdrTokenHeapPrefix *
+hdrtoken_index_to_prefix(int wks_idx)
+{
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+  return hdrtoken_wks_to_prefix(hdrtoken_index_to_wks(wks_idx));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+hdrtoken_wks_to_index(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  return hdrtoken_wks_to_prefix(wks)->wks_idx;
+}
+
+inline int
+hdrtoken_wks_to_length(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  return hdrtoken_wks_to_prefix(wks)->wks_length;
+}
+
+inline int
+hdrtoken_wks_to_token_type(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  return hdrtoken_wks_to_prefix(wks)->wks_token_type;
+}
+
+inline int
+hdrtoken_wks_to_slotid(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  return hdrtoken_wks_to_prefix(wks)->wks_info.slotid;
+}
+
+inline uint64_t
+hdrtoken_wks_to_mask(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  HdrTokenHeapPrefix *prefix = hdrtoken_wks_to_prefix(wks);
+  return prefix->wks_info.mask;
+}
+
+inline int
+hdrtoken_wks_to_flags(const char *wks)
+{
+  ink_assert(hdrtoken_is_wks(wks));
+  return hdrtoken_wks_to_prefix(wks)->wks_info.flags;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+////////////////////////////////////////////////////////////////////////////
+//
+//      tokenized string mime slot ids
+//
+//      (up to 32 of the most common headers are allowed to be placed in
+//       special fast slots and contain presence bits and other info)
+//
+////////////////////////////////////////////////////////////////////////////
+
+#define MIME_SLOTID_ACCEPT			0
+#define MIME_SLOTID_ACCEPT_CHARSET		1
+#define MIME_SLOTID_ACCEPT_ENCODING		2
+#define MIME_SLOTID_ACCEPT_LANGUAGE		3
+#define MIME_SLOTID_AGE				4
+#define MIME_SLOTID_AUTHORIZATION		5
+#define MIME_SLOTID_CACHE_CONTROL		6
+#define MIME_SLOTID_CLIENT_IP			7
+#define MIME_SLOTID_CONNECTION			8
+#define MIME_SLOTID_CONTENT_ENCODING		9
+#define MIME_SLOTID_CONTENT_LANGUAGE		10
+#define MIME_SLOTID_CONTENT_LENGTH		11
+#define MIME_SLOTID_CONTENT_TYPE		12
+#define MIME_SLOTID_COOKIE			13
+#define MIME_SLOTID_DATE			14
+#define MIME_SLOTID_EXPIRES			15
+#define MIME_SLOTID_IF_MATCH			16
+#define MIME_SLOTID_IF_MODIFIED_SINCE		17
+#define MIME_SLOTID_IF_NONE_MATCH		18
+#define MIME_SLOTID_IF_RANGE			19
+#define MIME_SLOTID_IF_UNMODIFIED_SINCE		20
+#define MIME_SLOTID_LAST_MODIFIED		21
+#define MIME_SLOTID_PRAGMA			22
+#define MIME_SLOTID_PROXY_CONNECTION		23
+#define MIME_SLOTID_RANGE			24
+#define MIME_SLOTID_SET_COOKIE			25
+#define MIME_SLOTID_TE				26
+#define MIME_SLOTID_TRANSFER_ENCODING		27
+#define MIME_SLOTID_USER_AGENT			28
+#define MIME_SLOTID_VARY			29
+#define MIME_SLOTID_VIA				30
+#define MIME_SLOTID_WWW_AUTHENTICATE		31
+
+#define MIME_SLOTID_NONE			-1
+
+////////////////////////////////////////////////////////////////////////////
+//
+//      tokenized string mime presence masks
+//
+//      (up to 64 headers get bitmasks for presence calculations)
+//
+////////////////////////////////////////////////////////////////////////////
+
+// Windows insists on doing everything it's own completely
+//   inmcompatible way, including integer constant subscripts.
+//   It's too easy to match a subscript to a type since everything
+//   won't break if the type is a different size.  Oh no, we
+//   need to define the number of bits in our constants to make
+//   life hard
+#define TOK_64_CONST(x) x ## LL
+
+#define MIME_PRESENCE_ACCEPT			(TOK_64_CONST(1) << 0)
+#define MIME_PRESENCE_ACCEPT_CHARSET		(TOK_64_CONST(1) << 1)
+#define MIME_PRESENCE_ACCEPT_ENCODING		(TOK_64_CONST(1) << 2)
+#define MIME_PRESENCE_ACCEPT_LANGUAGE		(TOK_64_CONST(1) << 3)
+#define MIME_PRESENCE_ACCEPT_RANGES		(TOK_64_CONST(1) << 4)
+#define MIME_PRESENCE_AGE			(TOK_64_CONST(1) << 5)
+#define MIME_PRESENCE_ALLOW			(TOK_64_CONST(1) << 6)
+#define MIME_PRESENCE_AUTHORIZATION		(TOK_64_CONST(1) << 7)
+#define MIME_PRESENCE_BYTES			(TOK_64_CONST(1) << 8)
+#define MIME_PRESENCE_CACHE_CONTROL		(TOK_64_CONST(1) << 9)
+#define MIME_PRESENCE_CLIENT_IP			(TOK_64_CONST(1) << 10)
+#define MIME_PRESENCE_CONNECTION		(TOK_64_CONST(1) << 11)
+#define MIME_PRESENCE_CONTENT_ENCODING		(TOK_64_CONST(1) << 12)
+#define MIME_PRESENCE_CONTENT_LANGUAGE		(TOK_64_CONST(1) << 13)
+#define MIME_PRESENCE_CONTENT_LENGTH		(TOK_64_CONST(1) << 14)
+#define MIME_PRESENCE_CONTENT_LOCATION		(TOK_64_CONST(1) << 15)
+#define MIME_PRESENCE_CONTENT_MD5		(TOK_64_CONST(1) << 16)
+#define MIME_PRESENCE_CONTENT_RANGE		(TOK_64_CONST(1) << 17)
+#define MIME_PRESENCE_CONTENT_TYPE		(TOK_64_CONST(1) << 18)
+#define MIME_PRESENCE_COOKIE			(TOK_64_CONST(1) << 19)
+#define MIME_PRESENCE_DATE			(TOK_64_CONST(1) << 20)
+#define MIME_PRESENCE_ETAG			(TOK_64_CONST(1) << 21)
+#define MIME_PRESENCE_EXPIRES			(TOK_64_CONST(1) << 22)
+#define MIME_PRESENCE_FROM			(TOK_64_CONST(1) << 23)
+#define MIME_PRESENCE_HOST			(TOK_64_CONST(1) << 24)
+#define MIME_PRESENCE_IF_MATCH			(TOK_64_CONST(1) << 25)
+#define MIME_PRESENCE_IF_MODIFIED_SINCE		(TOK_64_CONST(1) << 26)
+#define MIME_PRESENCE_IF_NONE_MATCH		(TOK_64_CONST(1) << 27)
+#define MIME_PRESENCE_IF_RANGE			(TOK_64_CONST(1) << 28)
+#define MIME_PRESENCE_IF_UNMODIFIED_SINCE	(TOK_64_CONST(1) << 29)
+#define MIME_PRESENCE_KEEP_ALIVE		(TOK_64_CONST(1) << 30)
+#define MIME_PRESENCE_KEYWORDS			(TOK_64_CONST(1) << 31)
+#define MIME_PRESENCE_LAST_MODIFIED		(TOK_64_CONST(1) << 32)
+#define MIME_PRESENCE_LINES			(TOK_64_CONST(1) << 33)
+#define MIME_PRESENCE_LOCATION			(TOK_64_CONST(1) << 34)
+#define MIME_PRESENCE_MAX_FORWARDS		(TOK_64_CONST(1) << 35)
+#define MIME_PRESENCE_PATH			(TOK_64_CONST(1) << 36)
+#define MIME_PRESENCE_PRAGMA			(TOK_64_CONST(1) << 37)
+#define MIME_PRESENCE_PROXY_AUTHENTICATE	(TOK_64_CONST(1) << 38)
+#define MIME_PRESENCE_PROXY_AUTHORIZATION	(TOK_64_CONST(1) << 39)
+#define MIME_PRESENCE_PROXY_CONNECTION		(TOK_64_CONST(1) << 40)
+#define MIME_PRESENCE_PUBLIC			(TOK_64_CONST(1) << 41)
+#define MIME_PRESENCE_RANGE			(TOK_64_CONST(1) << 42)
+#define MIME_PRESENCE_REFERER			(TOK_64_CONST(1) << 43)
+#define MIME_PRESENCE_SERVER			(TOK_64_CONST(1) << 44)
+#define MIME_PRESENCE_SET_COOKIE		(TOK_64_CONST(1) << 45)
+#define MIME_PRESENCE_SUBJECT			(TOK_64_CONST(1) << 46)
+#define MIME_PRESENCE_SUMMARY			(TOK_64_CONST(1) << 47)
+#define MIME_PRESENCE_TE			(TOK_64_CONST(1) << 48)
+#define MIME_PRESENCE_TRANSFER_ENCODING		(TOK_64_CONST(1) << 49)
+#define MIME_PRESENCE_UPGRADE			(TOK_64_CONST(1) << 50)
+#define MIME_PRESENCE_USER_AGENT		(TOK_64_CONST(1) << 51)
+#define MIME_PRESENCE_VARY			(TOK_64_CONST(1) << 52)
+#define MIME_PRESENCE_VIA			(TOK_64_CONST(1) << 53)
+#define MIME_PRESENCE_WARNING			(TOK_64_CONST(1) << 54)
+#define MIME_PRESENCE_WWW_AUTHENTICATE		(TOK_64_CONST(1) << 55)
+
+// bits 56-60 were used for a benchmark hack, but are now free to be used
+// for something else
+#define MIME_PRESENCE_UNUSED_1      (TOK_64_CONST(1) << 56)
+#define MIME_PRESENCE_UNUSED_2			(TOK_64_CONST(1) << 57)
+#define MIME_PRESENCE_UNUSED_3			(TOK_64_CONST(1) << 58)
+#define MIME_PRESENCE_UNUSED_4      (TOK_64_CONST(1) << 59)
+#define MIME_PRESENCE_UNUSED_5      (TOK_64_CONST(1) << 60)
+
+#define MIME_PRESENCE_XREF			(TOK_64_CONST(1) << 61)
+#define MIME_PRESENCE_INT_DATA_INFO		(TOK_64_CONST(1) << 62)
+
+#define MIME_PRESENCE_NONE			TOK_64_CONST(0)
+#define MIME_PRESENCE_ALL			~(TOK_64_CONST(0))
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+#endif /* __HDRTOKEN_H__ */
diff --git a/proxy/hdrs/HdrUtils.cc b/proxy/hdrs/HdrUtils.cc
new file mode 100644
index 00000000..eebae405
--- /dev/null
+++ b/proxy/hdrs/HdrUtils.cc
@@ -0,0 +1,181 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrUtils.cc
+
+   Description: Convenience routines for dealing with hdrs and
+                 values
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "HdrUtils.h"
+
+#define GETNEXT() {      \
+    cur += 1;            \
+    if (cur >= end) {    \
+        goto done;       \
+    }                    \
+}
+
+void
+HdrCsvIter::find_csv()
+{
+
+  const char *cur, *end, *last_data, *csv_start;
+
+RETRY:
+
+  cur = m_csv_start;
+  end = m_value_start + m_value_len;
+  last_data = NULL;
+  csv_start = NULL;
+
+  if (cur >= end) {
+    goto done;
+  }
+skip_leading_whitespace:
+  if (ParseRules::is_ws(*cur)) {
+    GETNEXT();
+    goto skip_leading_whitespace;
+  }
+  csv_start = cur;
+parse_value:
+  // ink_assert((',' > '"') && (',' > ' ') && (',' > '\t'));
+  // Cookie/Set-Cookie use ';' as the separator
+  if (m_separator == ',')
+    while ((cur<end - 1) && (*cur> ',')) {
+      last_data = cur;
+      cur++;
+    }
+
+  if (*cur == m_separator) {
+    goto done;
+  }
+  if (*cur == '\"') {
+    // If the quote come before any text
+    //   skip it
+    if (cur == csv_start) {
+      csv_start++;
+    }
+    GETNEXT();
+    goto parse_value_quote;
+  }
+  if (!ParseRules::is_ws(*cur)) {
+    last_data = cur;
+  }
+  GETNEXT();
+  goto parse_value;
+parse_value_quote:
+  if ((*cur == '\"') && (cur[-1] != '\\')) {
+    GETNEXT();
+    goto parse_value;
+  }
+  last_data = cur;
+  GETNEXT();
+  goto parse_value_quote;
+done:
+  m_csv_end = cur;
+  m_csv_start = csv_start;
+
+  if (last_data) {
+    m_csv_len = (int) (last_data - csv_start) + 1;
+  } else {
+    // Nothing found.  See if there is another
+    //    field in the dup list
+    if (m_cur_field->m_next_dup && m_follow_dups) {
+      field_init(m_cur_field->m_next_dup);
+      goto RETRY;
+    }
+
+    m_csv_len = 0;
+  }
+}
+
+const char *
+HdrCsvIter::get_nth(MIMEField * field, int *len, int n, bool follow_dups)
+{
+  const char *s;
+  int i, l;
+
+  ink_assert(n >= 0);
+  i = 0;
+
+  s = get_first(field, &l, follow_dups);        // get index 0
+  while (s && (n > i)) {
+    s = get_next(&l);
+    i++;
+  }                             // if had index i, but want n > i, get next
+  *len = (s ? l : 0);           // length is zero if NULL string
+  return (s);
+}
+
+
+int
+HdrCsvIter::count_values(MIMEField * field, bool follow_dups)
+{
+  const char *s;
+  int count, l;
+
+  count = 0;
+  s = get_first(field, &l, follow_dups);        // get index 0
+  while (s) {
+    s = get_next(&l);
+    ++count;
+  }                             // get next
+  return (count);
+}
+
+
+/*
+int main() {
+
+    char* tests[] = {"\"I\", \"hate\", \"strings\"",
+		     "This, is a , test",
+		     "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p",
+		     "\"This is,\" a test"
+    };
+
+    for (int i = 0; i < 4; i++) {
+	printf ("Testing: %s\n", tests[i]);
+
+	HdrCsvIter iter;
+	int len;
+	const char* v = iter.get_first(tests[i], strlen(tests[i]), &len);
+
+	while (v) {
+	    char* str_v = (char*)ats_malloc(len+1);
+	    memcpy(str_v, v, len);
+	    str_v[len] = '\0';
+	    printf ("%s|", str_v);
+	    v = iter.get_next(&len);
+	}
+
+	printf("\n\n");
+    }
+
+}
+*/
diff --git a/proxy/hdrs/HdrUtils.h b/proxy/hdrs/HdrUtils.h
new file mode 100644
index 00000000..fd26863d
--- /dev/null
+++ b/proxy/hdrs/HdrUtils.h
@@ -0,0 +1,183 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HdrUtils.h
+
+   Description: Convenience routines for dealing with hdrs and
+                 values
+
+
+ ****************************************************************************/
+
+#ifndef _HDR_UTILS_H_
+#define _HDR_UTILS_H_
+
+#include "ParseRules.h"
+#include "MIME.h"
+
+// csv = comma separated value
+class HdrCsvIter
+{
+public:
+  // MIME standard separator ',' is used as the default value
+  // Set-cookie/Cookie uses ';'
+HdrCsvIter(const char s = ','):m_value_start(NULL),
+    m_value_len(0), m_bytes_consumed(0), m_follow_dups(false),
+    m_csv_start(NULL), m_csv_len(0), m_csv_end(NULL), m_csv_index(0), m_cur_field(NULL), m_separator(s) {
+  }
+  const char *get_first(MIMEField * m, int *len, bool follow_dups = true);
+  const char *get_next(int *len);
+  const char *get_current(int *len);
+
+  const char *get_nth(MIMEField * m, int *len, int n, bool follow_dups = true);
+  int count_values(MIMEField * field, bool follow_dups = true);
+
+  int get_index();
+
+  int get_first_int(MIMEField * m, int *valid = NULL);
+  int get_next_int(int *valid = NULL);
+
+private:
+  void find_csv();
+
+  const char *m_value_start;
+  int m_value_len;
+  int m_bytes_consumed;
+  bool m_follow_dups;
+
+  // m_csv_start - the start of the current comma separated value
+  //                 leading white space, and leading quotes have
+  //                 been skipped over
+  // m_csv_len - the length of the current comma separated value
+  //                 not including leading whitespace, trailing
+  //                 whitespace (unless quoted) or the terminating
+  //                 comma, or trailing quotes have been removed
+  // m_csv_end - the terminating comma of the csv unit.  Either
+  //                 the terminating comma or the final character
+  //                 if this is the last csv in the string
+  // m_cvs_index - the integer index of current csv starting
+  //                 at zero
+  const char *m_csv_start;
+  int m_csv_len;
+  const char *m_csv_end;
+  int m_csv_index;
+  MIMEField *m_cur_field;
+
+  // for the Cookie/Set-cookie headers, the separator is ';'
+  const char m_separator;
+
+  void field_init(MIMEField * m);
+};
+
+inline void
+HdrCsvIter::field_init(MIMEField * m)
+{
+  m_cur_field = m;
+  m_value_start = m->m_ptr_value;
+  m_value_len = m->m_len_value;
+  m_csv_start = m_value_start;
+}
+
+inline const char *
+HdrCsvIter::get_first(MIMEField * m, int *len, bool follow_dups)
+{
+
+  field_init(m);
+
+  m_follow_dups = follow_dups;
+
+  m_bytes_consumed = 0;
+  m_csv_index = -1;
+
+  if (m_csv_start) {
+    find_csv();
+  } else {
+    m_csv_len = 0;
+  }
+
+  *len = m_csv_len;
+  return m_csv_start;
+}
+
+
+inline const char *
+HdrCsvIter::get_next(int *len)
+{
+
+
+  if (m_csv_start) {
+    // Skip past the current csv
+    m_csv_start = m_csv_end + 1;
+    find_csv();
+  }
+
+  *len = m_csv_len;
+  return m_csv_start;
+}
+
+inline const char *
+HdrCsvIter::get_current(int *len)
+{
+  *len = m_csv_len;
+  return m_csv_start;
+}
+
+inline int
+HdrCsvIter::get_first_int(MIMEField * m, int *valid)
+{
+  int len;
+  const char *r = get_first(m, &len);
+
+  if (r) {
+    if (valid)
+      *valid = 1;
+    return ink_atoi(r, len);
+  } else {
+    if (valid)
+      *valid = 0;
+    return 0;
+  }
+}
+
+inline int
+HdrCsvIter::get_next_int(int *valid)
+{
+  int len;
+  const char *r = get_next(&len);
+
+  if (r) {
+    if (valid)
+      *valid = 1;
+    return ink_atoi(r, len);
+  } else {
+    if (valid)
+      *valid = 0;
+    return 0;
+  }
+}
+
+
+
+#endif
diff --git a/proxy/hdrs/HttpCompat.cc b/proxy/hdrs/HttpCompat.cc
new file mode 100644
index 00000000..f8a05f70
--- /dev/null
+++ b/proxy/hdrs/HttpCompat.cc
@@ -0,0 +1,871 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "HttpCompat.h"
+#include "HdrUtils.h"    /* MAGIC_EDITING_TAG */
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      HttpCompat::parse_tok_list
+//
+//      Takes a string containing an HTTP list broken on the separator
+//      character <sep>, and returns a StrList object containing a
+//      dynamically allocated list of elements.  This is essentially a
+//      fancy strtok that runs to completion and hands you back all tokens.
+//
+//      The routine either allocates and copies each string token, or
+//      just maintains the point to the raw text token, depending on the
+//      mode of the StrList object.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+HttpCompat::parse_tok_list(StrList * list, int trim_quotes, const char *string, char sep)
+{
+  if (string == NULL)
+    return;
+  HttpCompat::parse_tok_list(list, trim_quotes, string, (int) strlen(string), sep);
+}
+
+void
+HttpCompat::parse_tok_list(StrList * list, int trim_quotes, const char *string, int len, char sep)
+{
+  int in_quote;
+  const char quot = '\"';
+  const char *s, *e, *l, *s_before_skipping_ws;
+  int index, byte_length, hit_sep;
+
+  if ((string == NULL) || (list == NULL) || (sep == NUL))
+    return;
+
+  s = string;
+  l = s + len - 1;
+  index = 0;
+
+  hit_sep = 0;
+  s_before_skipping_ws = s;
+
+  while (s <= l) {
+    //////////////////////////////////////////////////////////
+    // find the start of the first token, skipping over any //
+    // whitespace or empty tokens, to leave <s> pointing at //
+    // a NUL, a character, or a double quote.               //
+    //////////////////////////////////////////////////////////
+
+    while ((s <= l) && ParseRules::is_ws(*s))
+      ++s;                      // skip whitespace
+
+    //////////////////////////////////////////////////////////
+    // if we are pointing at a separator, this was an empty //
+    // token, so add the empty token, and continue parsing. //
+    //////////////////////////////////////////////////////////
+
+    if ((s <= l) && (*s == sep)) {
+      list->append_string(s_before_skipping_ws, 0);
+      ++index;
+      s_before_skipping_ws = s + 1;
+      s = s_before_skipping_ws;
+      hit_sep = 1;
+      continue;
+    }
+    //////////////////////////////////////////////////////////////////
+    // at this point, <s> points to EOS, a double quote, or another //
+    // character --- if EOS, then break out of the loop, and either //
+    // tack on a final empty token if we had a trailing separator,  //
+    // or just exit.                                                //
+    //////////////////////////////////////////////////////////////////
+
+    if (s > l)
+      break;
+
+    ///////////////////////////////////////////////////////////////////
+    // we are pointing to the first character of a token now, either //
+    // a character, or a double quote --- the next step is to scan   //
+    // for the next separator or end of string, being careful not to //
+    // include separators inside quotes.                             //
+    ///////////////////////////////////////////////////////////////////
+
+#define is_unquoted_separator(c) ((c == sep) && !in_quote)
+
+    if (*s == quot) {
+      in_quote = 1;
+      e = s + 1;                // start after quote
+      if (trim_quotes)
+        ++s;                    // trim starting quote
+    } else {
+      in_quote = 0;
+      e = s;
+    }
+
+    while ((e <= l) && !is_unquoted_separator(*e)) {
+      if (*e == quot) {
+        in_quote = !in_quote;
+      }
+      e++;
+    }
+
+    ///////////////////////////////////////////////////////////////////////
+    // we point one char past the last character of string, or an        //
+    // unquoted separator --- so back up into any previous whitespace or //
+    // quote, leaving <e> pointed 1 char after the last token character. //
+    ///////////////////////////////////////////////////////////////////////
+
+    hit_sep = (e <= l);         // must have hit a separator if still inside string
+
+    s_before_skipping_ws = e + 1;       // where to start next time
+    while ((e > s) && ParseRules::is_ws(*(e - 1)))
+      --e;                      // eat trailing ws
+    if ((e > s) && (*(e - 1) == quot) && trim_quotes)
+      --e;                      // eat trailing quote
+
+    /////////////////////////////////////////////////////////////////////
+    // now <e> points to the character AFTER the last character of the //
+    // field, either a separator, a quote, or a NUL (other other char  //
+    // after the last char in the string.                              //
+    /////////////////////////////////////////////////////////////////////
+
+    byte_length = (int) (e - s);
+    ink_assert(byte_length >= 0);
+
+    ///////////////////////////////////////////
+    // add the text to the list, and move on //
+    ///////////////////////////////////////////
+
+    list->append_string(s, byte_length);
+    s = s_before_skipping_ws;   // where to start next time
+    ++index;
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  // fall out of loop when at end of string --- three possibilities:        //
+  //   (1) at end of string after final token ("a,b,c" or "a,b,c   ")       //
+  //   (2) at end of string after final separator ("a,b,c," or "a,b,c,   ") //
+  //   (3) at end of string before any tokens ("" or "   ")                 //
+  // for cases (2) & (3), we want to return an empty token                  //
+  ////////////////////////////////////////////////////////////////////////////
+
+  if (hit_sep || (index == 0)) {
+    ink_assert(s == l + 1);
+    list->append_string(s_before_skipping_ws, 0);
+    ++index;
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      bool HttpCompat::lookup_param_in_strlist(
+//          StrList *param_list, char *param_name,
+//          char *param_val, int param_val_length)
+//
+//      Takes a list of parameter strings, and searches each parameter list
+//      element for the name <param_name>, and if followed by '=' and a value,
+//      the value string is stored in <param_val> up to <param_val_length>
+//      bytes minus 1 character for trailing NUL.
+//
+//      This routine can be used to search for charset=XXX, Q=XXX, and other
+//      kinds of parameters.  The param list can be constructed using the
+//      parse_comma_list and parse_semicolon_list functions.
+//
+//      The routine returns true if there was a match, false otherwise.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+bool
+HttpCompat::lookup_param_in_strlist(StrList * param_list,  const char *param_name, char *param_val, int param_val_length)
+{
+  int cnt;
+  const char *s, *t;
+  Str *param;
+  bool is_match;
+
+  for (param = param_list->head; param != NULL; param = param->next) {
+    /////////////////////////////////////////////////////
+    // compare this parameter to the target param_name //
+    /////////////////////////////////////////////////////
+
+    s = param->str;             // source str
+    t = param_name;             // target str
+    while (*s && *t && (ParseRules::ink_tolower(*s) == ParseRules::ink_tolower(*t))) {
+      ++s;
+      ++t;
+    }
+
+    ////////////////////////////////////////////////////////////////
+    // match if target string empty, and if current string empty,  //
+    // or points to space or '=' character.                       //
+    ////////////////////////////////////////////////////////////////
+
+    is_match = ((!*t) && ((!*s) || ParseRules::is_ws(*s) || (*s == '=')));
+
+    /////////////////////////////////////////////////////////////
+    // copy text after '=' into param_val, up to length limits //
+    /////////////////////////////////////////////////////////////
+
+    if (is_match) {
+      param_val[0] = '\0';
+
+      while (*s && ParseRules::is_ws(*s))
+        s++;                    // skip white
+      if (*s == '=') {
+        ++s;                    // skip '='
+        while (*s && ParseRules::is_ws(*s))
+          s++;                  // skip white
+
+        for (cnt = 0; *s && (cnt < param_val_length - 1); s++, cnt++)
+          param_val[cnt] = *s;
+        if (cnt < param_val_length)
+          param_val[cnt++] = '\0';
+      }
+      return (true);
+    }
+  }
+
+  return (false);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      bool HttpCompat::lookup_param_in_semicolon_string(
+//          char *semicolon_string, int semicolon_string_len,
+//          char *param_name, char *param_val, int param_val_length)
+//
+//      Takes a semicolon-separated string of parameters, and searches
+//      for a parameter named <param_name>, as in lookup_param_in_strlist.
+//
+//      The routine returns true if there was a match, false otherwise.
+//      If multiple parameters will be searched for in the same string,
+//      use lookup_param_in_strlist(), so the string is not tokenized
+//      multiple times.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+bool
+HttpCompat::lookup_param_in_semicolon_string(const char *semicolon_string, int semicolon_string_len,
+                                             const char *param_name, char *param_val, int param_val_length)
+{
+  StrList l;
+  bool result;
+
+  parse_semicolon_list(&l, semicolon_string, semicolon_string_len);
+  result = lookup_param_in_strlist(&l, param_name, param_val, param_val_length);
+  return (result);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void HttpCompat::parse_mime_type(
+//          char *mime_string, char *type, char *subtype,
+//          int type_len, int subtype_len)
+//
+//      This routine takes a pointer to a MIME type, and decomposes it
+//      into type and subtype fields, skipping over spaces, and placing
+//      the decomposed values into <type> and <subtype>.  The length
+//      fields describe the lengths of the type and subtype buffers,
+//      including the trailing NUL characters.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+HttpCompat::parse_mime_type(const char *mime_string, char *type, char *subtype, int type_len, int subtype_len)
+{
+  const char *s, *e;
+  char *d;
+
+  *type = *subtype = '\0';
+
+  /////////////////////
+  // skip whitespace //
+  /////////////////////
+
+  for (s = mime_string; *s && ParseRules::is_ws(*s); s++);
+
+  ///////////////////////////////////////////////////////////////////////
+  // scan type (until NUL, out of room, comma/semicolon, space, slash) //
+  ///////////////////////////////////////////////////////////////////////
+
+  d = type;
+  e = type + type_len;
+  while (*s && (d < e - 1) && (!ParseRules::is_ws(*s)) && (*s != ';') && (*s != ',') && (*s != '/')) {
+    *d++ = *s++;
+  }
+  *d++ = '\0';
+
+  //////////////////////////////////////////////////////////////
+  // skip remainder of text and space, then slash, then space //
+  //////////////////////////////////////////////////////////////
+
+  while (*s && (*s != ';') && (*s != ',') && (*s != '/'))
+    ++s;
+  if (*s == '/')
+    ++s;
+  while (*s && ParseRules::is_ws(*s))
+    ++s;
+
+  //////////////////////////////////////////////////////////////////////////
+  // scan subtype (until NUL, out of room, comma/semicolon, space, slash) //
+  //////////////////////////////////////////////////////////////////////////
+
+  d = subtype;
+  e = subtype + subtype_len;
+  while (*s && (d < e - 1) && (!ParseRules::is_ws(*s)) && (*s != ';') && (*s != ',') && (*s != '/')) {
+    *d++ = *s++;
+  }
+  *d++ = '\0';
+}
+
+void
+HttpCompat::parse_mime_type_with_len(const char *mime_string, int mime_string_len,
+                                     char *type, char *subtype, int type_len, int subtype_len)
+{
+  const char *s, *s_toofar, *e;
+  char *d;
+
+  *type = *subtype = '\0';
+  s_toofar = mime_string + mime_string_len;
+
+  /////////////////////
+  // skip whitespace //
+  /////////////////////
+
+  for (s = mime_string; (s < s_toofar) && ParseRules::is_ws(*s); s++);
+
+  ///////////////////////////////////////////////////////////////////////
+  // scan type (until NUL, out of room, comma/semicolon, space, slash) //
+  ///////////////////////////////////////////////////////////////////////
+
+  d = type;
+  e = type + type_len;
+  while ((s < s_toofar) && (d < e - 1) && (!ParseRules::is_ws(*s)) && (*s != ';') && (*s != ',') && (*s != '/')) {
+    *d++ = *s++;
+  }
+  *d++ = '\0';
+
+  //////////////////////////////////////////////////////////////
+  // skip remainder of text and space, then slash, then space //
+  //////////////////////////////////////////////////////////////
+
+  while ((s < s_toofar) && (*s != ';') && (*s != ',') && (*s != '/'))
+    ++s;
+  if ((s < s_toofar) && (*s == '/'))
+    ++s;
+  while ((s < s_toofar) && ParseRules::is_ws(*s))
+    ++s;
+
+  //////////////////////////////////////////////////////////////////////////
+  // scan subtype (until NUL, out of room, comma/semicolon, space, slash) //
+  //////////////////////////////////////////////////////////////////////////
+
+  d = subtype;
+  e = subtype + subtype_len;
+  while ((s < s_toofar) && (d < e - 1) && (!ParseRules::is_ws(*s)) && (*s != ';') && (*s != ',') && (*s != '/')) {
+    *d++ = *s++;
+  }
+  *d++ = '\0';
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      bool HttpCompat::do_header_values_match(MIMEField *hv1, MIMEField *hv2)
+//
+//      This routine takes two HTTP header fields and determines
+//      if their values "match", as in section 14.43 of RFC2068:
+//
+//        "When the cache receives a subsequent request whose Request-URI
+//         specifies one or more cache entries including a Vary header, the
+//         cache MUST NOT use such a cache entry to construct a response to
+//         the new request unless all of the headers named in the cached
+//         Vary header are present in the new request, and all of the stored
+//         selecting request-headers from the previous request match the
+//         corresponding headers in the new request.
+//
+//         The selecting request-headers from two requests are defined to
+//         match if and only if the selecting request-headers in the first
+//         request can be transformed to the selecting request-headers in
+//         the second request by adding or removing linear whitespace (LWS)
+//         at places where this is allowed by the corresponding BNF, and/or
+//         combining multiple message-header fields with the same field
+//         name following the rules about message headers in section 4.2."
+//
+//////////////////////////////////////////////////////////////////////////////
+bool
+HttpCompat::do_header_values_rfc2068_14_43_match(MIMEField * hdr1, MIMEField * hdr2)
+{
+  // If both headers are missing, the headers match.
+  if (!hdr1 && !hdr2)
+    return true;
+
+  // If one header is missing, the headers do not match.
+  if (!hdr1 || !hdr2)
+    return false;
+
+  // Make sure both headers have the same number of comma-
+  // separated elements.
+  HdrCsvIter iter1, iter2;
+  if (iter1.count_values(hdr1) != iter2.count_values(hdr2))
+    return false;
+
+  int hdr1_val_len, hdr2_val_len;
+  const char *hdr1_val = iter1.get_first(hdr1, &hdr1_val_len);
+  const char *hdr2_val = iter2.get_first(hdr2, &hdr2_val_len);
+
+  while (hdr1_val || hdr2_val) {
+    if (hdr1_val_len != hdr2_val_len || ParseRules::strncasecmp_eow(hdr1_val, hdr2_val, hdr1_val_len) == false)
+      return false;
+
+    hdr1_val = iter1.get_next(&hdr1_val_len);
+    hdr2_val = iter2.get_next(&hdr2_val_len);
+  }
+
+  return true;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      float HttpCompat::find_Q_param_in_strlist(StrList *strlist);
+//
+//      Takes a StrList formed from semicolon-parsing a value, and returns
+//      the value of the Q directive, or 1.0 by default.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+float
+HttpCompat::find_Q_param_in_strlist(StrList * strlist)
+{
+  float f, this_q;
+  char q_string[8];
+
+  this_q = 1.0;
+  if (HttpCompat::lookup_param_in_strlist(strlist, (char *) "q", q_string, sizeof(q_string))) {
+    // coverity[secure_coding]
+    if (sscanf(q_string, "%f", &f) == 1)        // parse q
+      this_q = (f<0 ? 0 : (f> 1 ? 1 : f));
+  }
+
+  return (this_q);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      float HttpCompat::match_accept_language
+//
+//      This routine returns the resulting Q factor from matching the
+//      content language tag <lang_str> against the Accept-Language value
+//      string <acpt_str>.
+//
+//      It also returns the index of the particular accept list piece
+//      that matches, and the length of the accept list piece that matches,
+//      in case you later want to resolve quality ties by position in the
+//      list, or by length of match.  In general, you want to sort the
+//      results of this call first by chosen Q, then by matching_length
+//      (longer is better), then by matching_index (lower is better).
+//      The first matching_index value is index 1.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+static inline bool
+does_language_range_match(const char *pattern, int pattern_len, const char *tag, int tag_len)
+{
+  bool match;
+
+  while (pattern_len && tag_len && (ParseRules::ink_tolower(*pattern) == ParseRules::ink_tolower(*tag))) {
+    ++pattern;
+    ++tag;
+    --pattern_len;
+    --tag_len;
+  }
+
+  // matches if range equals tag, or if range is a lang prefix of tag
+  if ((((pattern_len == 0) && (tag_len == 0)) || ((pattern_len == 0) && (*tag == '-'))))
+    match = true;
+  else
+    match = false;
+
+  return (match);
+}
+
+float
+HttpCompat::match_accept_language(const char *lang_str, int lang_len,
+                                  StrList * acpt_lang_list,
+                                  int *matching_length, int *matching_index, bool ignore_wildcards)
+{
+  float Q, Q_wild;
+  Str *a_value;
+
+  Q = -1;                       // will never be returned as -1
+  Q_wild = -1;                  // will never be returned as -1
+  int match_count = 0;
+  int wild_match_count = 0;
+  int longest_match_len = 0;
+
+  int index = 0;
+  int Q_index = 0;
+  int Q_wild_index = 0;
+
+  *matching_index = 0;
+  *matching_length = 0;
+
+  ///////////////////////////////////////////////////////
+  // rip the accept string into comma-separated values //
+  ///////////////////////////////////////////////////////
+  if (acpt_lang_list->count == 0)
+    return (0.0);
+
+  ////////////////////////////////////////
+  // loop over each Accept-Language tag //
+  ////////////////////////////////////////
+  for (a_value = acpt_lang_list->head; a_value; a_value = a_value->next) {
+    ++index;
+
+    if (a_value->len == 0)
+      continue;                 // blank tag
+
+    ///////////////////////////////////////////////////////////
+    // now rip the Accept-Language tag into head and Q parts //
+    ///////////////////////////////////////////////////////////
+    StrList a_param_list(false);
+    HttpCompat::parse_semicolon_list(&a_param_list, a_value->str, (int) a_value->len);
+    if (!a_param_list.head)
+      continue;
+
+    /////////////////////////////////////////////////////////////////////
+    // This algorithm is a bit wierd --- the resulting Q factor is     //
+    // the Q value corresponding to the LONGEST range field that       //
+    // matched, or if none matched, then the Q value of any asterisk.  //
+    // Also, if the lang value is "", meaning that no Content-Language //
+    // was specified, this document matches all accept headers.        //
+    /////////////////////////////////////////////////////////////////////
+    const char *atag_str = a_param_list.head->str;
+    int atag_len = (int) a_param_list.head->len;
+
+    float tq = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+
+    if ((atag_len == 1) && (atag_str[0] == '*'))        // wildcard
+    {
+      ++wild_match_count;
+      if (tq > Q_wild) {
+        Q_wild = tq;
+        Q_wild_index = index;
+      }
+    } else if (does_language_range_match(atag_str, atag_len, lang_str, lang_len)) {
+      ++match_count;
+      if (atag_len > longest_match_len) {
+        longest_match_len = atag_len;
+        Q = tq;
+        Q_index = index;
+      } else if (atag_len == longest_match_len) // if tie, pick higher Q
+      {
+        if (tq > Q) {
+          Q = tq;
+          Q_index = index;
+        }
+      }
+    }
+  }
+
+  if ((ignore_wildcards == false) && wild_match_count && !match_count) {
+    *matching_index = Q_wild_index;
+    *matching_length = 1;
+    return (Q_wild);
+  } else if (match_count > 0)   // real match
+  {
+    *matching_index = Q_index;
+    *matching_length = longest_match_len;
+    return (Q);
+  } else                        // no match
+  {
+    *matching_index = 0;
+    *matching_length = 0;
+    return (0.0);
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      float HttpCompat::match_accept_charset
+//
+//      This routine returns the resulting Q factor from matching the
+//      content language tag <lang_str> against the Accept-Language value
+//      string <acpt_str>.
+//
+//      It also returns the index of the particular accept list piece
+//      that matches, and the length of the accept list piece that matches,
+//      in case you later want to resolve quality ties by position in the
+//      list, or by length of match.  In general, you want to sort the
+//      results of this call first by chosen Q, then by matching_length
+//      (longer is better), then by matching_index (lower is better).
+//      The first matching_index value is index 1.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+// FIX: not implemented!
+
+float
+HttpCompat::match_accept_charset(const char *charset_str, int charset_len,
+                                 StrList * acpt_charset_list, int *matching_index, bool ignore_wildcards)
+{
+  float Q, Q_wild;
+  Str *a_value;
+
+  Q = -1;                       // will never be returned as -1
+  Q_wild = -1;                  // will never be returned as -1
+  int match_count = 0;
+  int wild_match_count = 0;
+
+  int index = 0;
+  int Q_index = 0;
+  int Q_wild_index = 0;
+
+  *matching_index = 0;
+
+  ///////////////////////////////////////////////////////
+  // rip the accept string into comma-separated values //
+  ///////////////////////////////////////////////////////
+  if (acpt_charset_list->count == 0)
+    return (0.0);
+
+  ///////////////////////////////////////
+  // loop over each Accept-Charset tag //
+  ///////////////////////////////////////
+  for (a_value = acpt_charset_list->head; a_value; a_value = a_value->next) {
+    ++index;
+    if (a_value->len == 0)
+      continue;                 // blank tag
+
+    //////////////////////////////////////////////////////////
+    // now rip the Accept-Charset tag into head and Q parts //
+    //////////////////////////////////////////////////////////
+    StrList a_param_list(false);
+    HttpCompat::parse_semicolon_list(&a_param_list, a_value->str, (int) a_value->len);
+    if (!a_param_list.head)
+      continue;
+
+    ///////////////////////////////////////////////////////////////
+    // see if the Accept-Charset tag matches the current charset //
+    ///////////////////////////////////////////////////////////////
+    const char *atag_str = a_param_list.head->str;
+    int atag_len = (int) a_param_list.head->len;
+    float tq = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+
+    if ((atag_len == 1) && (atag_str[0] == '*'))        // wildcard
+    {
+      ++wild_match_count;
+      if (tq > Q_wild) {
+        Q_wild = tq;
+        Q_wild_index = index;
+      }
+    } else if ((atag_len == charset_len) && (strncasecmp(atag_str, charset_str, charset_len) == 0)) {
+      ++match_count;
+      if (tq > Q) {
+        Q = tq;
+        Q_index = index;
+      }
+    }
+  }
+
+  if ((ignore_wildcards == false) && wild_match_count && !match_count) {
+    *matching_index = Q_wild_index;
+    return (Q_wild);
+  } else if (match_count > 0)   // real match
+  {
+    *matching_index = Q_index;
+    return (Q);
+  } else                        // no match
+  {
+    *matching_index = 0;
+    return (0.0);
+  }
+}
+
+const char *
+HttpCompat::determine_set_by_language(RawHashTable * table_of_sets,
+                                      StrList * acpt_language_list, StrList * acpt_charset_list,
+                                      float *Q_best_ptr, int *La_best_ptr, int *Lc_best_ptr, int *I_best_ptr)
+{
+  float Q, Ql, Qc, Q_best;
+  int I, Idummy, I_best;
+  int La, Lc, La_best, Lc_best;
+  int is_the_default_set;
+  const char *set_best;
+
+  RawHashTable_Key k1;
+  RawHashTable_Value v1;
+  RawHashTable_Binding *b1;
+  RawHashTable_IteratorState i1;
+  RawHashTable *table_of_pages;
+  HttpBodySetRawData *body_set;
+
+  set_best = "default";
+  Q_best = 0.00001;
+  La_best = 0;
+  Lc_best = INT_MAX;
+  I_best = INT_MAX;
+
+  Debug("body_factory_determine_set", "  INITIAL: [ set_best='%s', Q=%g, La=%d, Lc=%d, I=%d ]",
+        set_best, Q_best, La_best, Lc_best, I_best);
+
+  // FIX: eliminate this special case (which doesn't work anyway), by properly
+  //      handling empty lists and empty pieces in match_accept_XXX
+
+  // if no Accept-Language or Accept-Charset, just return default
+  if ((acpt_language_list->count == 0) && (acpt_charset_list->count == 0)) {
+    Q_best = 1;
+    Debug("body_factory_determine_set", "  no constraints => returning '%s'", set_best);
+    goto done;
+  }
+
+  if (table_of_sets != NULL) {
+    ///////////////////////////////////////////
+    // loop over set->body-types hash table //
+    ///////////////////////////////////////////
+
+    for (b1 = table_of_sets->firstBinding(&i1); b1 != NULL; b1 = table_of_sets->nextBinding(&i1)) {
+      k1 = table_of_sets->getKeyFromBinding(b1);
+      v1 = table_of_sets->getValueFromBinding(b1);
+      const char *set_name = (const char *) k1;
+
+      body_set = (HttpBodySetRawData *) v1;
+      table_of_pages = body_set->table_of_pages;
+
+      if ((set_name == NULL) || (table_of_pages == NULL))
+        continue;
+
+      //////////////////////////////////////////////////////////////////////
+      // Take this error page language and match it against the           //
+      // Accept-Language string passed in, to evaluate the match          //
+      // quality.  Disable wildcard processing so we use "default"        //
+      // if no set explicitly matches.  We also get back the index        //
+      // of the match and the length of the match.                        //
+      //                                                                  //
+      // We optimize the match in a couple of ways:                       //
+      //   (a) if Q is better ==> wins, else if tie,                      //
+      //   (b) if accept tag length La is bigger ==> wins, else if tie,   //
+      //   (c) if content tag length Lc is smaller ==> wins, else if tie, //
+      //   (d) if index position I is smaller ==> wins                    //
+      //////////////////////////////////////////////////////////////////////
+
+      is_the_default_set = (strcmp(set_name, "default") == 0);
+
+      Debug("body_factory_determine_set", "  --- SET: %-8s (Content-Language '%s', Content-Charset '%s')",
+            set_name, body_set->content_language, body_set->content_charset);
+
+      // if no Accept-Language hdr at all, treat as a wildcard that
+      // slightly prefers "default".
+      if (acpt_language_list->count == 0) {
+        Ql = (is_the_default_set ? 1.0001 : 1.000);
+        La = 0;
+        Lc = INT_MAX;
+        I = 1;
+        Debug("body_factory_determine_set", "      SET: [%-8s] A-L not present => [ Ql=%g, La=%d, Lc=%d, I=%d ]",
+              set_name, Ql, La, Lc, I);
+      } else {
+        Lc = strlen(body_set->content_language);
+        Ql = HttpCompat::match_accept_language(body_set->content_language, Lc, acpt_language_list, &La, &I, true);
+        Debug("body_factory_determine_set", "      SET: [%-8s] A-L match value => [ Ql=%g, La=%d, Lc=%d, I=%d ]",
+              set_name, Ql, La, Lc, I);
+      }
+
+      /////////////////////////////////////////////////////////////
+      // Take this error page language and match it against the  //
+      // Accept-Charset string passed in, to evaluate the match  //
+      // quality.  Disable wildcard processing so that only      //
+      // explicit values match.  (Many browsers will send along  //
+      // "*" with all lists, and we really don't want to send    //
+      // strange character sets for these people --- we'd rather //
+      // use a more portable "default" set.  The index value we  //
+      // get back isn't used, because it's a little hard to know //
+      // how to tradeoff language indices vs. charset indices.   //
+      // If someone cares, we could surely work charset indices  //
+      // into the sorting computation below.                     //
+      /////////////////////////////////////////////////////////////
+
+      // if no Accept-Charset hdr at all, treat as a wildcard that
+      // slightly prefers "default".
+      if (acpt_charset_list->count == 0) {
+        Qc = (is_the_default_set ? 1.0001 : 1.000);
+        Idummy = 1;
+        Debug("body_factory_determine_set", "      SET: [%-8s] A-C not present => [ Qc=%g ]", set_name, Qc);
+      } else {
+        Qc = HttpCompat::match_accept_charset(body_set->content_charset, strlen(body_set->content_charset),
+                                              acpt_charset_list, &Idummy, true);
+        Debug("body_factory_determine_set", "      SET: [%-8s] A-C match value => [ Qc=%g ]", set_name, Qc);
+      }
+
+
+      /////////////////////////////////////////////////////////////////
+      // We get back the Q value, the matching field length, and the //
+      // matching field index.  We sort by largest Q value, but if   //
+      // there is a Q tie, we sub sort on longer matching length,    //
+      // and if there is a tie on Q and L, we sub sort on position   //
+      // index, preferring values earlier in Accept-Language list.   //
+      /////////////////////////////////////////////////////////////////
+
+      Q = min(Ql, Qc);
+
+      //////////////////////////////////////////////////////////
+      // normally the Q for default pages should be slightly  //
+      // less than for normal pages, but default pages should //
+      // always match to a slight level, in case everything   //
+      // else doesn't match (matches with Q=0).               //
+      //////////////////////////////////////////////////////////
+
+      if (is_the_default_set) {
+        Q = Q + -0.00005;
+        if (Q < 0.00001)
+          Q = 0.00001;
+      }
+
+      Debug("body_factory_determine_set", "      NEW: [ set='%s', Q=%g, La=%d, Lc=%d, I=%d ]", set_name, Q, La, Lc, I);
+      Debug("body_factory_determine_set", "      OLD: [ set='%s', Q=%g, La=%d, Lc=%d, I=%d ]",
+            set_best, Q_best, La_best, Lc_best, I_best);
+
+      if (((Q > Q_best)) ||
+          ((Q == Q_best) && (La > La_best)) ||
+          ((Q == Q_best) && (La == La_best) && (Lc < Lc_best)) ||
+          ((Q == Q_best) && (La == La_best) && (Lc == Lc_best) && (I < I_best))) {
+        Q_best = Q;
+        La_best = La;
+        Lc_best = Lc;
+        I_best = I;
+        set_best = set_name;
+
+        Debug("body_factory_determine_set", "   WINNER: [ set_best='%s', Q=%g, La=%d, Lc=%d, I=%d ]",
+              set_best, Q_best, La_best, Lc_best, I_best);
+      } else {
+        Debug("body_factory_determine_set", "    LOSER: [ set_best='%s', Q=%g, La=%d, Lc=%d, I=%d ]",
+              set_best, Q_best, La_best, Lc_best, I_best);
+      }
+    }
+  }
+
+done:
+
+  *Q_best_ptr = Q_best;
+  *La_best_ptr = La_best;
+  *Lc_best_ptr = Lc_best;
+  *I_best_ptr = I_best;
+  return (set_best);
+}
diff --git a/proxy/hdrs/HttpCompat.h b/proxy/hdrs/HttpCompat.h
new file mode 100644
index 00000000..317c4749
--- /dev/null
+++ b/proxy/hdrs/HttpCompat.h
@@ -0,0 +1,96 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __HTTP_COMPAT_H__
+#define __HTTP_COMPAT_H__
+
+#include "ink_string++.h"
+#include "MIME.h"
+#include "RawHashTable.h"
+#include "Diags.h"
+
+struct HttpBodySetRawData
+{
+  unsigned int magic;
+  char *set_name;
+  char *content_language;
+  char *content_charset;
+  RawHashTable *table_of_pages;
+};
+
+
+class HttpCompat
+{
+public:
+  static void parse_tok_list(StrList * list, int trim_quotes, const char *comma_list_str, int comma_list_len, char tok);
+
+  static void parse_tok_list(StrList * list, int trim_quotes, const char *comma_list_str, char tok);
+
+  static bool lookup_param_in_strlist(StrList * param_list, const char *param_name, char *param_val, int param_val_length);
+
+  static bool lookup_param_in_semicolon_string(const char *semicolon_string, int semicolon_string_len,
+                                               const char *param_name, char *param_val, int param_val_length);
+
+  static void parse_mime_type(const char *mime_string, char *type, char *subtype, int type_len, int subtype_len);
+
+  static void parse_mime_type_with_len(const char *mime_string, int mime_string_len, char *type, char *subtype,
+                                       int type_len, int subtype_len);
+
+  static bool do_header_values_rfc2068_14_43_match(MIMEField * hv1, MIMEField * hv2);
+
+  static float find_Q_param_in_strlist(StrList * strlist);
+
+  static float match_accept_language(const char *lang_str, int lang_len,
+                                     StrList * acpt_lang_list,
+                                     int *matching_length, int *matching_index, bool ignore_wildcards = false);
+
+  static float match_accept_charset(const char *charset_str, int charset_len,
+                                    StrList * acpt_charset_list, int *matching_index, bool ignore_wildcards = false);
+
+  static const char *determine_set_by_language(RawHashTable * table_of_sets,
+                                               StrList * acpt_language_list, StrList * acpt_charset_list,
+                                               float *Q_best_ptr, int *La_best_ptr, int *Lc_best_ptr, int *I_best_ptr);
+
+  static void parse_comma_list(StrList * list, const char *comma_list_str)
+  {
+    parse_tok_list(list, 1, comma_list_str, ',');
+  }
+
+  static void parse_comma_list(StrList * list, const char *comma_list_str, int comma_list_len)
+  {
+    parse_tok_list(list, 1, comma_list_str, comma_list_len, ',');
+  }
+
+  static void parse_semicolon_list(StrList * list, const char *comma_list_str)
+  {
+    parse_tok_list(list, 1, comma_list_str, ';');
+  }
+
+  static void parse_semicolon_list(StrList * list, const char *comma_list_str, int comma_list_len)
+  {
+    parse_tok_list(list, 1, comma_list_str, comma_list_len, ';');
+  }
+
+};
+
+#endif /* __HTTP_COMPAT_H__ */
diff --git a/proxy/hdrs/MIME.cc b/proxy/hdrs/MIME.cc
new file mode 100644
index 00000000..e25b58fa
--- /dev/null
+++ b/proxy/hdrs/MIME.cc
@@ -0,0 +1,3796 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_defs.h"
+#include "libts.h"
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include "MIME.h"
+#include "HdrHeap.h"
+#include "HdrToken.h"
+#include "HdrUtils.h"
+#include "HttpCompat.h"
+
+/***********************************************************************
+ *                                                                     *
+ *                    C O M P I L E    O P T I O N S                   *
+ *                                                                     *
+ ***********************************************************************/
+#define TRACK_FIELD_FIND_CALLS			0
+#define	TRACK_COOKING				0
+#define	MIME_FORMAT_DATE_USE_LOOKUP_TABLE	1
+
+
+/***********************************************************************
+ *                                                                     *
+ *                          C O N S T A N T S                          *
+ *                                                                     *
+ ***********************************************************************/
+static DFA *day_names_dfa = NULL;
+static DFA *month_names_dfa = NULL;
+
+static const char *day_names[] = {
+  "Sun",
+  "Mon",
+  "Tue",
+  "Wed",
+  "Thu",
+  "Fri",
+  "Sat",
+};
+
+static const char *month_names[] = {
+  "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
+};
+
+struct MDY
+{
+  uint8_t m;
+  uint8_t d;
+  uint16_t y;
+};
+
+static MDY *_days_to_mdy_fast_lookup_table = NULL;
+static unsigned int _days_to_mdy_fast_lookup_table_first_day;
+static unsigned int _days_to_mdy_fast_lookup_table_last_day;
+
+
+/***********************************************************************
+ *                                                                     *
+ *                             G L O B A L S                           *
+ *                                                                     *
+ ***********************************************************************/
+const char *MIME_FIELD_ACCEPT;
+const char *MIME_FIELD_ACCEPT_CHARSET;
+const char *MIME_FIELD_ACCEPT_ENCODING;
+const char *MIME_FIELD_ACCEPT_LANGUAGE;
+const char *MIME_FIELD_ACCEPT_RANGES;
+const char *MIME_FIELD_AGE;
+const char *MIME_FIELD_ALLOW;
+const char *MIME_FIELD_APPROVED;
+const char *MIME_FIELD_AUTHORIZATION;
+const char *MIME_FIELD_BYTES;
+const char *MIME_FIELD_CACHE_CONTROL;
+const char *MIME_FIELD_CLIENT_IP;
+const char *MIME_FIELD_CONNECTION;
+const char *MIME_FIELD_CONTENT_BASE;
+const char *MIME_FIELD_CONTENT_ENCODING;
+const char *MIME_FIELD_CONTENT_LANGUAGE;
+const char *MIME_FIELD_CONTENT_LENGTH;
+const char *MIME_FIELD_CONTENT_LOCATION;
+const char *MIME_FIELD_CONTENT_MD5;
+const char *MIME_FIELD_CONTENT_RANGE;
+const char *MIME_FIELD_CONTENT_TYPE;
+const char *MIME_FIELD_CONTROL;
+const char *MIME_FIELD_COOKIE;
+const char *MIME_FIELD_DATE;
+const char *MIME_FIELD_DISTRIBUTION;
+const char *MIME_FIELD_ETAG;
+const char *MIME_FIELD_EXPECT;
+const char *MIME_FIELD_EXPIRES;
+const char *MIME_FIELD_FOLLOWUP_TO;
+const char *MIME_FIELD_FROM;
+const char *MIME_FIELD_HOST;
+const char *MIME_FIELD_IF_MATCH;
+const char *MIME_FIELD_IF_MODIFIED_SINCE;
+const char *MIME_FIELD_IF_NONE_MATCH;
+const char *MIME_FIELD_IF_RANGE;
+const char *MIME_FIELD_IF_UNMODIFIED_SINCE;
+const char *MIME_FIELD_KEEP_ALIVE;
+const char *MIME_FIELD_KEYWORDS;
+const char *MIME_FIELD_LAST_MODIFIED;
+const char *MIME_FIELD_LINES;
+const char *MIME_FIELD_LOCATION;
+const char *MIME_FIELD_MAX_FORWARDS;
+const char *MIME_FIELD_MESSAGE_ID;
+const char *MIME_FIELD_NEWSGROUPS;
+const char *MIME_FIELD_ORGANIZATION;
+const char *MIME_FIELD_PATH;
+const char *MIME_FIELD_PRAGMA;
+const char *MIME_FIELD_PROXY_AUTHENTICATE;
+const char *MIME_FIELD_PROXY_AUTHORIZATION;
+const char *MIME_FIELD_PROXY_CONNECTION;
+const char *MIME_FIELD_PUBLIC;
+const char *MIME_FIELD_RANGE;
+const char *MIME_FIELD_REFERENCES;
+const char *MIME_FIELD_REFERER;
+const char *MIME_FIELD_REPLY_TO;
+const char *MIME_FIELD_RETRY_AFTER;
+const char *MIME_FIELD_SENDER;
+const char *MIME_FIELD_SERVER;
+const char *MIME_FIELD_SET_COOKIE;
+const char *MIME_FIELD_STRICT_TRANSPORT_SECURITY;
+const char *MIME_FIELD_SUBJECT;
+const char *MIME_FIELD_SUMMARY;
+const char *MIME_FIELD_TE;
+const char *MIME_FIELD_TRANSFER_ENCODING;
+const char *MIME_FIELD_UPGRADE;
+const char *MIME_FIELD_USER_AGENT;
+const char *MIME_FIELD_VARY;
+const char *MIME_FIELD_VIA;
+const char *MIME_FIELD_WARNING;
+const char *MIME_FIELD_WWW_AUTHENTICATE;
+const char *MIME_FIELD_XREF;
+const char *MIME_FIELD_INT_DATA_INFO;
+const char *MIME_FIELD_X_ID;
+const char *MIME_FIELD_X_FORWARDED_FOR;
+const char *MIME_FIELD_SEC_WEBSOCKET_KEY;
+const char *MIME_FIELD_SEC_WEBSOCKET_VERSION;
+
+const char *MIME_VALUE_BYTES;
+const char *MIME_VALUE_CHUNKED;
+const char *MIME_VALUE_CLOSE;
+const char *MIME_VALUE_COMPRESS;
+const char *MIME_VALUE_DEFLATE;
+const char *MIME_VALUE_GZIP;
+const char *MIME_VALUE_IDENTITY;
+const char *MIME_VALUE_KEEP_ALIVE;
+const char *MIME_VALUE_MAX_AGE;
+const char *MIME_VALUE_MAX_STALE;
+const char *MIME_VALUE_MIN_FRESH;
+const char *MIME_VALUE_MUST_REVALIDATE;
+const char *MIME_VALUE_NONE;
+const char *MIME_VALUE_NO_CACHE;
+const char *MIME_VALUE_NO_STORE;
+const char *MIME_VALUE_NO_TRANSFORM;
+const char *MIME_VALUE_ONLY_IF_CACHED;
+const char *MIME_VALUE_PRIVATE;
+const char *MIME_VALUE_PROXY_REVALIDATE;
+const char *MIME_VALUE_PUBLIC;
+const char *MIME_VALUE_S_MAXAGE;
+const char *MIME_VALUE_NEED_REVALIDATE_ONCE;
+const char *MIME_VALUE_WEBSOCKET;
+
+// Cache-control: extension "need-revalidate-once" is used internally by T.S.
+// to invalidate a document, and it is not returned/forwarded.
+// If a cached document has this extension set (ie, is invalidated),
+// then the T.S. needs to revalidate the document once before returning it.
+// After a successful revalidation, the extension will be removed by T.S.
+// To set or unset this directive should be done via the following two
+// function:
+//      set_cooked_cc_need_revalidate_once()
+//      unset_cooked_cc_need_revalidate_once()
+// To test, use regular Cache-control testing functions, eg,
+//      is_cache_control_set(HTTP_VALUE_NEED_REVALIDATE_ONCE)
+
+int MIME_LEN_ACCEPT;
+int MIME_LEN_ACCEPT_CHARSET;
+int MIME_LEN_ACCEPT_ENCODING;
+int MIME_LEN_ACCEPT_LANGUAGE;
+int MIME_LEN_ACCEPT_RANGES;
+int MIME_LEN_AGE;
+int MIME_LEN_ALLOW;
+int MIME_LEN_APPROVED;
+int MIME_LEN_AUTHORIZATION;
+int MIME_LEN_BYTES;
+int MIME_LEN_CACHE_CONTROL;
+int MIME_LEN_CLIENT_IP;
+int MIME_LEN_CONNECTION;
+int MIME_LEN_CONTENT_BASE;
+int MIME_LEN_CONTENT_ENCODING;
+int MIME_LEN_CONTENT_LANGUAGE;
+int MIME_LEN_CONTENT_LENGTH;
+int MIME_LEN_CONTENT_LOCATION;
+int MIME_LEN_CONTENT_MD5;
+int MIME_LEN_CONTENT_RANGE;
+int MIME_LEN_CONTENT_TYPE;
+int MIME_LEN_CONTROL;
+int MIME_LEN_COOKIE;
+int MIME_LEN_DATE;
+int MIME_LEN_DISTRIBUTION;
+int MIME_LEN_ETAG;
+int MIME_LEN_EXPECT;
+int MIME_LEN_EXPIRES;
+int MIME_LEN_FOLLOWUP_TO;
+int MIME_LEN_FROM;
+int MIME_LEN_HOST;
+int MIME_LEN_IF_MATCH;
+int MIME_LEN_IF_MODIFIED_SINCE;
+int MIME_LEN_IF_NONE_MATCH;
+int MIME_LEN_IF_RANGE;
+int MIME_LEN_IF_UNMODIFIED_SINCE;
+int MIME_LEN_KEEP_ALIVE;
+int MIME_LEN_KEYWORDS;
+int MIME_LEN_LAST_MODIFIED;
+int MIME_LEN_LINES;
+int MIME_LEN_LOCATION;
+int MIME_LEN_MAX_FORWARDS;
+int MIME_LEN_MESSAGE_ID;
+int MIME_LEN_NEWSGROUPS;
+int MIME_LEN_ORGANIZATION;
+int MIME_LEN_PATH;
+int MIME_LEN_PRAGMA;
+int MIME_LEN_PROXY_AUTHENTICATE;
+int MIME_LEN_PROXY_AUTHORIZATION;
+int MIME_LEN_PROXY_CONNECTION;
+int MIME_LEN_PUBLIC;
+int MIME_LEN_RANGE;
+int MIME_LEN_REFERENCES;
+int MIME_LEN_REFERER;
+int MIME_LEN_REPLY_TO;
+int MIME_LEN_RETRY_AFTER;
+int MIME_LEN_SENDER;
+int MIME_LEN_SERVER;
+int MIME_LEN_SET_COOKIE;
+int MIME_LEN_STRICT_TRANSPORT_SECURITY;
+int MIME_LEN_SUBJECT;
+int MIME_LEN_SUMMARY;
+int MIME_LEN_TE;
+int MIME_LEN_TRANSFER_ENCODING;
+int MIME_LEN_UPGRADE;
+int MIME_LEN_USER_AGENT;
+int MIME_LEN_VARY;
+int MIME_LEN_VIA;
+int MIME_LEN_WARNING;
+int MIME_LEN_WWW_AUTHENTICATE;
+int MIME_LEN_XREF;
+int MIME_LEN_INT_DATA_INFO;
+int MIME_LEN_X_ID;
+int MIME_LEN_X_FORWARDED_FOR;
+int MIME_LEN_SEC_WEBSOCKET_KEY;
+int MIME_LEN_SEC_WEBSOCKET_VERSION;
+
+int MIME_WKSIDX_ACCEPT;
+int MIME_WKSIDX_ACCEPT_CHARSET;
+int MIME_WKSIDX_ACCEPT_ENCODING;
+int MIME_WKSIDX_ACCEPT_LANGUAGE;
+int MIME_WKSIDX_ACCEPT_RANGES;
+int MIME_WKSIDX_AGE;
+int MIME_WKSIDX_ALLOW;
+int MIME_WKSIDX_APPROVED;
+int MIME_WKSIDX_AUTHORIZATION;
+int MIME_WKSIDX_BYTES;
+int MIME_WKSIDX_CACHE_CONTROL;
+int MIME_WKSIDX_CLIENT_IP;
+int MIME_WKSIDX_CONNECTION;
+int MIME_WKSIDX_CONTENT_BASE;
+int MIME_WKSIDX_CONTENT_ENCODING;
+int MIME_WKSIDX_CONTENT_LANGUAGE;
+int MIME_WKSIDX_CONTENT_LENGTH;
+int MIME_WKSIDX_CONTENT_LOCATION;
+int MIME_WKSIDX_CONTENT_MD5;
+int MIME_WKSIDX_CONTENT_RANGE;
+int MIME_WKSIDX_CONTENT_TYPE;
+int MIME_WKSIDX_CONTROL;
+int MIME_WKSIDX_COOKIE;
+int MIME_WKSIDX_DATE;
+int MIME_WKSIDX_DISTRIBUTION;
+int MIME_WKSIDX_ETAG;
+int MIME_WKSIDX_EXPECT;
+int MIME_WKSIDX_EXPIRES;
+int MIME_WKSIDX_FOLLOWUP_TO;
+int MIME_WKSIDX_FROM;
+int MIME_WKSIDX_HOST;
+int MIME_WKSIDX_IF_MATCH;
+int MIME_WKSIDX_IF_MODIFIED_SINCE;
+int MIME_WKSIDX_IF_NONE_MATCH;
+int MIME_WKSIDX_IF_RANGE;
+int MIME_WKSIDX_IF_UNMODIFIED_SINCE;
+int MIME_WKSIDX_KEEP_ALIVE;
+int MIME_WKSIDX_KEYWORDS;
+int MIME_WKSIDX_LAST_MODIFIED;
+int MIME_WKSIDX_LINES;
+int MIME_WKSIDX_LOCATION;
+int MIME_WKSIDX_MAX_FORWARDS;
+int MIME_WKSIDX_MESSAGE_ID;
+int MIME_WKSIDX_NEWSGROUPS;
+int MIME_WKSIDX_ORGANIZATION;
+int MIME_WKSIDX_PATH;
+int MIME_WKSIDX_PRAGMA;
+int MIME_WKSIDX_PROXY_AUTHENTICATE;
+int MIME_WKSIDX_PROXY_AUTHORIZATION;
+int MIME_WKSIDX_PROXY_CONNECTION;
+int MIME_WKSIDX_PUBLIC;
+int MIME_WKSIDX_RANGE;
+int MIME_WKSIDX_REFERENCES;
+int MIME_WKSIDX_REFERER;
+int MIME_WKSIDX_REPLY_TO;
+int MIME_WKSIDX_RETRY_AFTER;
+int MIME_WKSIDX_SENDER;
+int MIME_WKSIDX_SERVER;
+int MIME_WKSIDX_SET_COOKIE;
+int MIME_WKSIDX_STRICT_TRANSPORT_SECURITY;
+int MIME_WKSIDX_SUBJECT;
+int MIME_WKSIDX_SUMMARY;
+int MIME_WKSIDX_TE;
+int MIME_WKSIDX_TRANSFER_ENCODING;
+int MIME_WKSIDX_UPGRADE;
+int MIME_WKSIDX_USER_AGENT;
+int MIME_WKSIDX_VARY;
+int MIME_WKSIDX_VIA;
+int MIME_WKSIDX_WARNING;
+int MIME_WKSIDX_WWW_AUTHENTICATE;
+int MIME_WKSIDX_XREF;
+int MIME_WKSIDX_INT_DATA_INFO;
+int MIME_WKSIDX_X_ID;
+int MIME_WKSIDX_X_FORWARDED_FOR;
+int MIME_WKSIDX_SEC_WEBSOCKET_KEY;
+int MIME_WKSIDX_SEC_WEBSOCKET_VERSION;
+
+/***********************************************************************
+ *                                                                     *
+ *                 U T I L I T Y    R O U T I N E S                    *
+ *                                                                     *
+ ***********************************************************************/
+inline static int
+is_digit(char c)
+{
+  return ((c <= '9') && (c >= '0'));
+}
+
+inline static int
+is_ws(char c)
+{
+  return ((c == ParseRules::CHAR_SP) || (c == ParseRules::CHAR_HT));
+}
+
+
+/***********************************************************************
+ *                                                                     *
+ *                    P R E S E N C E    B I T S                       *
+ *                                                                     *
+ ***********************************************************************/
+uint64_t
+mime_field_presence_mask(const char *well_known_str)
+{
+  return hdrtoken_wks_to_mask(well_known_str);
+}
+
+uint64_t
+mime_field_presence_mask(int well_known_str_index)
+{
+  return hdrtoken_index_to_mask(well_known_str_index);
+}
+
+int
+mime_field_presence_get(MIMEHdrImpl *h, const char *well_known_str)
+{
+  uint64_t mask = mime_field_presence_mask(well_known_str);
+  return ((mask == 0) ? 1 : ((h->m_presence_bits & mask) == 0 ? 0 : 1));
+}
+
+int
+mime_field_presence_get(MIMEHdrImpl *h, int well_known_str_index)
+{
+  const char *wks = hdrtoken_index_to_wks(well_known_str_index);
+  return mime_field_presence_get(h, wks);
+}
+
+void
+mime_hdr_presence_set(MIMEHdrImpl *h, const char *well_known_str)
+{
+  uint64_t mask = mime_field_presence_mask(well_known_str);
+  if (mask != 0)
+    h->m_presence_bits |= mask;
+}
+
+void
+mime_hdr_presence_set(MIMEHdrImpl *h, int well_known_str_index)
+{
+  const char *wks = hdrtoken_index_to_wks(well_known_str_index);
+  mime_hdr_presence_set(h, wks);
+}
+
+void
+mime_hdr_presence_unset(MIMEHdrImpl *h, const char *well_known_str)
+{
+  uint64_t mask = mime_field_presence_mask(well_known_str);
+  if (mask != 0)
+    h->m_presence_bits &= (~mask);
+}
+
+void
+mime_hdr_presence_unset(MIMEHdrImpl *h, int well_known_str_index)
+{
+  const char *wks = hdrtoken_index_to_wks(well_known_str_index);
+  mime_hdr_presence_unset(h, wks);
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                  S L O T    A C C E L E R A T O R S                 *
+ *                                                                     *
+ ***********************************************************************/
+inline uint32_t
+mime_hdr_get_accelerator_slotnum(MIMEHdrImpl *mh, int32_t slot_id)
+{
+  ink_assert((slot_id != MIME_SLOTID_NONE) && (slot_id < 32));
+
+  uint32_t word_index = slot_id / 8;      // 4 words of 8 slots
+  uint32_t word = mh->m_slot_accelerators[word_index];    // 8 slots of 4 bits each
+  uint32_t nybble = slot_id % 8;  // which of the 8 nybbles?
+  uint32_t slot = ((word >> (nybble * 4)) & 15);  // grab the 4 bit slotnum
+  return slot;
+}
+
+inline void
+mime_hdr_set_accelerator_slotnum(MIMEHdrImpl *mh, int32_t slot_id, uint32_t slot_num)
+{
+  ink_assert((slot_id != MIME_SLOTID_NONE) && (slot_id < 32));
+  ink_assert(slot_num < 16);
+
+  uint32_t word_index = slot_id / 8;      // 4 words of 8 slots
+  uint32_t word = mh->m_slot_accelerators[word_index];    // 8 slots of 4 bits each
+  uint32_t nybble = slot_id % 8;  // which of the 8 nybbles?
+  uint32_t shift = nybble * 4;    // shift in chunks of 4 bits
+  uint32_t mask = ~(MIME_FIELD_SLOTNUM_MASK << shift);    // mask to zero out old slot
+  uint32_t graft = (slot_num << shift);   // plug to insert into slot
+  uint32_t new_word = (word & mask) | graft;      // new value
+
+  mh->m_slot_accelerators[word_index] = new_word;
+}
+
+inline void
+mime_hdr_set_accelerators_and_presence_bits(MIMEHdrImpl *mh, MIMEField *field)
+{
+  int slot_id, slot_num;
+  if (field->m_wks_idx < 0)
+    return;
+
+  mime_hdr_presence_set(mh, field->m_wks_idx);
+
+  slot_id = hdrtoken_index_to_slotid(field->m_wks_idx);
+  if (slot_id != MIME_SLOTID_NONE) {
+    slot_num = (field - &(mh->m_first_fblock.m_field_slots[0]));
+    if ((slot_num >= 0) && (slot_num < MIME_FIELD_SLOTNUM_UNKNOWN))
+      mime_hdr_set_accelerator_slotnum(mh, slot_id, slot_num);
+    else
+      mime_hdr_set_accelerator_slotnum(mh, slot_id, MIME_FIELD_SLOTNUM_UNKNOWN);
+  }
+}
+
+inline void
+mime_hdr_unset_accelerators_and_presence_bits(MIMEHdrImpl *mh, MIMEField *field)
+{
+  int slot_id;
+  if (field->m_wks_idx < 0)
+    return;
+
+  mime_hdr_presence_unset(mh, field->m_wks_idx);
+
+  slot_id = hdrtoken_index_to_slotid(field->m_wks_idx);
+  if (slot_id != MIME_SLOTID_NONE)
+    mime_hdr_set_accelerator_slotnum(mh, slot_id, MIME_FIELD_SLOTNUM_MAX);
+}
+
+int
+checksum_block(const char *s, int len)
+{
+  int sum = 0;
+  while (len--)
+    sum ^= *s++;
+  return sum;
+}
+
+
+#ifdef DEBUG
+void
+mime_hdr_sanity_check(MIMEHdrImpl *mh)
+{
+  MIMEFieldBlockImpl *fblock, *blk, *last_fblock;
+  MIMEField *field, *next_dup;
+  uint32_t slot_index, index;
+  uint64_t masksum;
+
+  masksum = 0;
+  slot_index = 0;
+  last_fblock = NULL;
+
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    for (index = 0; index < fblock->m_freetop; index++) {
+      field = &(fblock->m_field_slots[index]);
+
+      if (field->is_live()) {
+        // dummy operations just to make sure deref doesn't crash
+        checksum_block(field->m_ptr_name, field->m_len_name);
+        if (field->m_ptr_value)
+          checksum_block(field->m_ptr_value, field->m_len_value);
+
+        if (field->m_n_v_raw_printable) {
+          int total_len = field->m_len_name + field->m_len_value + field->m_n_v_raw_printable_pad;
+          checksum_block(field->m_ptr_name, total_len);
+        }
+        // walk the dup list, quickly checking each cell
+        if (field->m_next_dup != NULL) {
+          int field_slotnum = mime_hdr_field_slotnum(mh, field);
+
+          for (next_dup = field->m_next_dup; next_dup; next_dup = next_dup->m_next_dup) {
+            int next_slotnum = mime_hdr_field_slotnum(mh, next_dup);
+            ink_release_assert((next_dup->m_flags & MIME_FIELD_SLOT_FLAGS_DUP_HEAD) == 0);
+            ink_release_assert((next_dup->m_readiness == MIME_FIELD_SLOT_READINESS_LIVE));
+            ink_release_assert(next_dup->m_wks_idx == field->m_wks_idx);
+            ink_release_assert(next_dup->m_len_name == field->m_len_name);
+            ink_release_assert(strncasecmp(field->m_ptr_name, next_dup->m_ptr_name, field->m_len_name) == 0);
+            ink_release_assert(next_slotnum > field_slotnum);
+          }
+        }
+        // if this is a well known string, check presence bits & slot accelerators
+        if (field->m_wks_idx >= 0) {
+          const char *wks = hdrtoken_index_to_wks(field->m_wks_idx);
+          int len = hdrtoken_index_to_length(field->m_wks_idx);
+
+          if (field->m_len_name != len || strncasecmp(field->m_ptr_name, wks, field->m_len_name) != 0)
+            Warning("Encountered WKS hash collision on '%.*s'", field->m_len_name, field->m_ptr_name);
+
+          uint64_t mask = mime_field_presence_mask(field->m_wks_idx);
+          masksum |= mask;
+
+          int32_t slot_id = hdrtoken_index_to_slotid(field->m_wks_idx);
+          if ((slot_id != MIME_SLOTID_NONE) &&
+              (slot_index < MIME_FIELD_SLOTNUM_UNKNOWN) && (field->m_flags & MIME_FIELD_SLOT_FLAGS_DUP_HEAD)) {
+            uint32_t slot_num = mime_hdr_get_accelerator_slotnum(mh, slot_id);
+            if (slot_num <= 14)
+              ink_release_assert(slot_num == slot_index);
+          }
+        } else {
+          int idx = hdrtoken_tokenize(field->m_ptr_name, field->m_len_name, NULL);
+          ink_release_assert(idx < 0);
+        }
+
+        // verify that the next dup pointer points to a block in this list
+        if (field->m_next_dup) {
+          bool found = false;
+          for (blk = &(mh->m_first_fblock); blk != NULL; blk = blk->m_next) {
+            const char *addr = (const char *) (field->m_next_dup);
+            if ((addr >= (const char *) (blk)) && (addr < (const char *) (blk) + sizeof(MIMEFieldBlockImpl))) {
+              found = true;
+              break;
+            }
+          }
+          ink_release_assert(found);
+        }
+        // re-find the field --- should always find the head dup
+        MIMEField *mf = mime_hdr_field_find(mh, field->m_ptr_name, field->m_len_name);
+        ink_release_assert(mf != NULL);
+        if (mf == field)
+          ink_release_assert((field->m_flags & MIME_FIELD_SLOT_FLAGS_DUP_HEAD) != 0);
+        else
+          ink_release_assert((field->m_flags & MIME_FIELD_SLOT_FLAGS_DUP_HEAD) == 0);
+      }
+
+      ++slot_index;
+    }
+    last_fblock = fblock;
+  }
+
+  ink_release_assert(last_fblock == mh->m_fblock_list_tail);
+  ink_release_assert(masksum == mh->m_presence_bits);
+}
+#endif
+
+
+void
+mime_init()
+{
+  static int init = 1;
+
+  if (init) {
+    init = 0;
+    
+    hdrtoken_init();
+    day_names_dfa = new DFA;
+    day_names_dfa->compile(day_names, SIZEOF(day_names), RE_CASE_INSENSITIVE);
+    
+    month_names_dfa = new DFA;
+    month_names_dfa->compile(month_names, SIZEOF(month_names), RE_CASE_INSENSITIVE);
+    
+    MIME_FIELD_ACCEPT = hdrtoken_string_to_wks("Accept");
+    MIME_FIELD_ACCEPT_CHARSET = hdrtoken_string_to_wks("Accept-Charset");
+    MIME_FIELD_ACCEPT_ENCODING = hdrtoken_string_to_wks("Accept-Encoding");
+    MIME_FIELD_ACCEPT_LANGUAGE = hdrtoken_string_to_wks("Accept-Language");
+    MIME_FIELD_ACCEPT_RANGES = hdrtoken_string_to_wks("Accept-Ranges");
+    MIME_FIELD_AGE = hdrtoken_string_to_wks("Age");
+    MIME_FIELD_ALLOW = hdrtoken_string_to_wks("Allow");
+    MIME_FIELD_APPROVED = hdrtoken_string_to_wks("Approved");
+    MIME_FIELD_AUTHORIZATION = hdrtoken_string_to_wks("Authorization");
+    MIME_FIELD_BYTES = hdrtoken_string_to_wks("Bytes");
+    MIME_FIELD_CACHE_CONTROL = hdrtoken_string_to_wks("Cache-Control");
+    MIME_FIELD_CLIENT_IP = hdrtoken_string_to_wks("Client-ip");
+    MIME_FIELD_CONNECTION = hdrtoken_string_to_wks("Connection");
+    MIME_FIELD_CONTENT_BASE = hdrtoken_string_to_wks("Content-Base");
+    MIME_FIELD_CONTENT_ENCODING = hdrtoken_string_to_wks("Content-Encoding");
+    MIME_FIELD_CONTENT_LANGUAGE = hdrtoken_string_to_wks("Content-Language");
+    MIME_FIELD_CONTENT_LENGTH = hdrtoken_string_to_wks("Content-Length");
+    MIME_FIELD_CONTENT_LOCATION = hdrtoken_string_to_wks("Content-Location");
+    MIME_FIELD_CONTENT_MD5 = hdrtoken_string_to_wks("Content-MD5");
+    MIME_FIELD_CONTENT_RANGE = hdrtoken_string_to_wks("Content-Range");
+    MIME_FIELD_CONTENT_TYPE = hdrtoken_string_to_wks("Content-Type");
+    MIME_FIELD_CONTROL = hdrtoken_string_to_wks("Control");
+    MIME_FIELD_COOKIE = hdrtoken_string_to_wks("Cookie");
+    MIME_FIELD_DATE = hdrtoken_string_to_wks("Date");
+    MIME_FIELD_DISTRIBUTION = hdrtoken_string_to_wks("Distribution");
+    MIME_FIELD_ETAG = hdrtoken_string_to_wks("Etag");
+    MIME_FIELD_EXPECT = hdrtoken_string_to_wks("Expect");
+    MIME_FIELD_EXPIRES = hdrtoken_string_to_wks("Expires");
+    MIME_FIELD_FOLLOWUP_TO = hdrtoken_string_to_wks("Followup-To");
+    MIME_FIELD_FROM = hdrtoken_string_to_wks("From");
+    MIME_FIELD_HOST = hdrtoken_string_to_wks("Host");
+    MIME_FIELD_IF_MATCH = hdrtoken_string_to_wks("If-Match");
+    MIME_FIELD_IF_MODIFIED_SINCE = hdrtoken_string_to_wks("If-Modified-Since");
+    MIME_FIELD_IF_NONE_MATCH = hdrtoken_string_to_wks("If-None-Match");
+    MIME_FIELD_IF_RANGE = hdrtoken_string_to_wks("If-Range");
+    MIME_FIELD_IF_UNMODIFIED_SINCE = hdrtoken_string_to_wks("If-Unmodified-Since");
+    MIME_FIELD_KEEP_ALIVE = hdrtoken_string_to_wks("Keep-Alive");
+    MIME_FIELD_KEYWORDS = hdrtoken_string_to_wks("Keywords");
+    MIME_FIELD_LAST_MODIFIED = hdrtoken_string_to_wks("Last-Modified");
+    MIME_FIELD_LINES = hdrtoken_string_to_wks("Lines");
+    MIME_FIELD_LOCATION = hdrtoken_string_to_wks("Location");
+    MIME_FIELD_MAX_FORWARDS = hdrtoken_string_to_wks("Max-Forwards");
+    MIME_FIELD_MESSAGE_ID = hdrtoken_string_to_wks("Message-ID");
+    MIME_FIELD_NEWSGROUPS = hdrtoken_string_to_wks("Newsgroups");
+    MIME_FIELD_ORGANIZATION = hdrtoken_string_to_wks("Organization");
+    MIME_FIELD_PATH = hdrtoken_string_to_wks("Path");
+    MIME_FIELD_PRAGMA = hdrtoken_string_to_wks("Pragma");
+    MIME_FIELD_PROXY_AUTHENTICATE = hdrtoken_string_to_wks("Proxy-Authenticate");
+    MIME_FIELD_PROXY_AUTHORIZATION = hdrtoken_string_to_wks("Proxy-Authorization");
+    MIME_FIELD_PROXY_CONNECTION = hdrtoken_string_to_wks("Proxy-Connection");
+    MIME_FIELD_PUBLIC = hdrtoken_string_to_wks("Public");
+    MIME_FIELD_RANGE = hdrtoken_string_to_wks("Range");
+    MIME_FIELD_REFERENCES = hdrtoken_string_to_wks("References");
+    MIME_FIELD_REFERER = hdrtoken_string_to_wks("Referer");
+    MIME_FIELD_REPLY_TO = hdrtoken_string_to_wks("Reply-To");
+    MIME_FIELD_RETRY_AFTER = hdrtoken_string_to_wks("Retry-After");
+    MIME_FIELD_SENDER = hdrtoken_string_to_wks("Sender");
+    MIME_FIELD_SERVER = hdrtoken_string_to_wks("Server");
+    MIME_FIELD_SET_COOKIE = hdrtoken_string_to_wks("Set-Cookie");
+    MIME_FIELD_STRICT_TRANSPORT_SECURITY = hdrtoken_string_to_wks("Strict-Transport-Security");
+    MIME_FIELD_SUBJECT = hdrtoken_string_to_wks("Subject");
+    MIME_FIELD_SUMMARY = hdrtoken_string_to_wks("Summary");
+    MIME_FIELD_TE = hdrtoken_string_to_wks("TE");
+    MIME_FIELD_TRANSFER_ENCODING = hdrtoken_string_to_wks("Transfer-Encoding");
+    MIME_FIELD_UPGRADE = hdrtoken_string_to_wks("Upgrade");
+    MIME_FIELD_USER_AGENT = hdrtoken_string_to_wks("User-Agent");
+    MIME_FIELD_VARY = hdrtoken_string_to_wks("Vary");
+    MIME_FIELD_VIA = hdrtoken_string_to_wks("Via");
+    MIME_FIELD_WARNING = hdrtoken_string_to_wks("Warning");
+    MIME_FIELD_WWW_AUTHENTICATE = hdrtoken_string_to_wks("Www-Authenticate");
+    MIME_FIELD_XREF = hdrtoken_string_to_wks("Xref");
+    MIME_FIELD_INT_DATA_INFO = hdrtoken_string_to_wks("@DataInfo");
+    MIME_FIELD_X_ID = hdrtoken_string_to_wks("X-ID");
+    MIME_FIELD_X_FORWARDED_FOR = hdrtoken_string_to_wks("X-Forwarded-For");
+
+    MIME_FIELD_SEC_WEBSOCKET_KEY = hdrtoken_string_to_wks("Sec-WebSocket-Key");
+    MIME_FIELD_SEC_WEBSOCKET_VERSION = hdrtoken_string_to_wks("Sec-WebSocket-Version");
+
+
+    MIME_LEN_ACCEPT = hdrtoken_wks_to_length(MIME_FIELD_ACCEPT);
+    MIME_LEN_ACCEPT_CHARSET = hdrtoken_wks_to_length(MIME_FIELD_ACCEPT_CHARSET);
+    MIME_LEN_ACCEPT_ENCODING = hdrtoken_wks_to_length(MIME_FIELD_ACCEPT_ENCODING);
+    MIME_LEN_ACCEPT_LANGUAGE = hdrtoken_wks_to_length(MIME_FIELD_ACCEPT_LANGUAGE);
+    MIME_LEN_ACCEPT_RANGES = hdrtoken_wks_to_length(MIME_FIELD_ACCEPT_RANGES);
+    MIME_LEN_AGE = hdrtoken_wks_to_length(MIME_FIELD_AGE);
+    MIME_LEN_ALLOW = hdrtoken_wks_to_length(MIME_FIELD_ALLOW);
+    MIME_LEN_APPROVED = hdrtoken_wks_to_length(MIME_FIELD_APPROVED);
+    MIME_LEN_AUTHORIZATION = hdrtoken_wks_to_length(MIME_FIELD_AUTHORIZATION);
+    MIME_LEN_BYTES = hdrtoken_wks_to_length(MIME_FIELD_BYTES);
+    MIME_LEN_CACHE_CONTROL = hdrtoken_wks_to_length(MIME_FIELD_CACHE_CONTROL);
+    MIME_LEN_CLIENT_IP = hdrtoken_wks_to_length(MIME_FIELD_CLIENT_IP);
+    MIME_LEN_CONNECTION = hdrtoken_wks_to_length(MIME_FIELD_CONNECTION);
+    MIME_LEN_CONTENT_BASE = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_BASE);
+    MIME_LEN_CONTENT_ENCODING = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_ENCODING);
+    MIME_LEN_CONTENT_LANGUAGE = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_LANGUAGE);
+    MIME_LEN_CONTENT_LENGTH = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_LENGTH);
+    MIME_LEN_CONTENT_LOCATION = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_LOCATION);
+    MIME_LEN_CONTENT_MD5 = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_MD5);
+    MIME_LEN_CONTENT_RANGE = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_RANGE);
+    MIME_LEN_CONTENT_TYPE = hdrtoken_wks_to_length(MIME_FIELD_CONTENT_TYPE);
+    MIME_LEN_CONTROL = hdrtoken_wks_to_length(MIME_FIELD_CONTROL);
+    MIME_LEN_COOKIE = hdrtoken_wks_to_length(MIME_FIELD_COOKIE);
+    MIME_LEN_DATE = hdrtoken_wks_to_length(MIME_FIELD_DATE);
+    MIME_LEN_DISTRIBUTION = hdrtoken_wks_to_length(MIME_FIELD_DISTRIBUTION);
+    MIME_LEN_ETAG = hdrtoken_wks_to_length(MIME_FIELD_ETAG);
+    MIME_LEN_EXPECT = hdrtoken_wks_to_length(MIME_FIELD_EXPECT);
+    MIME_LEN_EXPIRES = hdrtoken_wks_to_length(MIME_FIELD_EXPIRES);
+    MIME_LEN_FOLLOWUP_TO = hdrtoken_wks_to_length(MIME_FIELD_FOLLOWUP_TO);
+    MIME_LEN_FROM = hdrtoken_wks_to_length(MIME_FIELD_FROM);
+    MIME_LEN_HOST = hdrtoken_wks_to_length(MIME_FIELD_HOST);
+    MIME_LEN_IF_MATCH = hdrtoken_wks_to_length(MIME_FIELD_IF_MATCH);
+    MIME_LEN_IF_MODIFIED_SINCE = hdrtoken_wks_to_length(MIME_FIELD_IF_MODIFIED_SINCE);
+    MIME_LEN_IF_NONE_MATCH = hdrtoken_wks_to_length(MIME_FIELD_IF_NONE_MATCH);
+    MIME_LEN_IF_RANGE = hdrtoken_wks_to_length(MIME_FIELD_IF_RANGE);
+    MIME_LEN_IF_UNMODIFIED_SINCE = hdrtoken_wks_to_length(MIME_FIELD_IF_UNMODIFIED_SINCE);
+    MIME_LEN_KEEP_ALIVE = hdrtoken_wks_to_length(MIME_FIELD_KEEP_ALIVE);
+    MIME_LEN_KEYWORDS = hdrtoken_wks_to_length(MIME_FIELD_KEYWORDS);
+    MIME_LEN_LAST_MODIFIED = hdrtoken_wks_to_length(MIME_FIELD_LAST_MODIFIED);
+    MIME_LEN_LINES = hdrtoken_wks_to_length(MIME_FIELD_LINES);
+    MIME_LEN_LOCATION = hdrtoken_wks_to_length(MIME_FIELD_LOCATION);
+    MIME_LEN_MAX_FORWARDS = hdrtoken_wks_to_length(MIME_FIELD_MAX_FORWARDS);
+    MIME_LEN_MESSAGE_ID = hdrtoken_wks_to_length(MIME_FIELD_MESSAGE_ID);
+    MIME_LEN_NEWSGROUPS = hdrtoken_wks_to_length(MIME_FIELD_NEWSGROUPS);
+    MIME_LEN_ORGANIZATION = hdrtoken_wks_to_length(MIME_FIELD_ORGANIZATION);
+    MIME_LEN_PATH = hdrtoken_wks_to_length(MIME_FIELD_PATH);
+    MIME_LEN_PRAGMA = hdrtoken_wks_to_length(MIME_FIELD_PRAGMA);
+    MIME_LEN_PROXY_AUTHENTICATE = hdrtoken_wks_to_length(MIME_FIELD_PROXY_AUTHENTICATE);
+    MIME_LEN_PROXY_AUTHORIZATION = hdrtoken_wks_to_length(MIME_FIELD_PROXY_AUTHORIZATION);
+    MIME_LEN_PROXY_CONNECTION = hdrtoken_wks_to_length(MIME_FIELD_PROXY_CONNECTION);
+    MIME_LEN_PUBLIC = hdrtoken_wks_to_length(MIME_FIELD_PUBLIC);
+    MIME_LEN_RANGE = hdrtoken_wks_to_length(MIME_FIELD_RANGE);
+    MIME_LEN_REFERENCES = hdrtoken_wks_to_length(MIME_FIELD_REFERENCES);
+    MIME_LEN_REFERER = hdrtoken_wks_to_length(MIME_FIELD_REFERER);
+    MIME_LEN_REPLY_TO = hdrtoken_wks_to_length(MIME_FIELD_REPLY_TO);
+    MIME_LEN_RETRY_AFTER = hdrtoken_wks_to_length(MIME_FIELD_RETRY_AFTER);
+    MIME_LEN_SENDER = hdrtoken_wks_to_length(MIME_FIELD_SENDER);
+    MIME_LEN_SERVER = hdrtoken_wks_to_length(MIME_FIELD_SERVER);
+    MIME_LEN_SET_COOKIE = hdrtoken_wks_to_length(MIME_FIELD_SET_COOKIE);
+    MIME_LEN_STRICT_TRANSPORT_SECURITY = hdrtoken_wks_to_length(MIME_FIELD_STRICT_TRANSPORT_SECURITY);
+    MIME_LEN_SUBJECT = hdrtoken_wks_to_length(MIME_FIELD_SUBJECT);
+    MIME_LEN_SUMMARY = hdrtoken_wks_to_length(MIME_FIELD_SUMMARY);
+    MIME_LEN_TE = hdrtoken_wks_to_length(MIME_FIELD_TE);
+    MIME_LEN_TRANSFER_ENCODING = hdrtoken_wks_to_length(MIME_FIELD_TRANSFER_ENCODING);
+    MIME_LEN_UPGRADE = hdrtoken_wks_to_length(MIME_FIELD_UPGRADE);
+    MIME_LEN_USER_AGENT = hdrtoken_wks_to_length(MIME_FIELD_USER_AGENT);
+    MIME_LEN_VARY = hdrtoken_wks_to_length(MIME_FIELD_VARY);
+    MIME_LEN_VIA = hdrtoken_wks_to_length(MIME_FIELD_VIA);
+    MIME_LEN_WARNING = hdrtoken_wks_to_length(MIME_FIELD_WARNING);
+    MIME_LEN_WWW_AUTHENTICATE = hdrtoken_wks_to_length(MIME_FIELD_WWW_AUTHENTICATE);
+    MIME_LEN_XREF = hdrtoken_wks_to_length(MIME_FIELD_XREF);
+    MIME_LEN_INT_DATA_INFO = hdrtoken_wks_to_length(MIME_FIELD_INT_DATA_INFO);
+    MIME_LEN_X_ID = hdrtoken_wks_to_length(MIME_FIELD_X_ID);
+    MIME_LEN_X_FORWARDED_FOR = hdrtoken_wks_to_length(MIME_FIELD_X_FORWARDED_FOR);
+
+    MIME_LEN_SEC_WEBSOCKET_KEY = hdrtoken_wks_to_length(MIME_FIELD_SEC_WEBSOCKET_KEY);
+    MIME_LEN_SEC_WEBSOCKET_VERSION = hdrtoken_wks_to_length(MIME_FIELD_SEC_WEBSOCKET_VERSION);
+
+
+    MIME_WKSIDX_ACCEPT = hdrtoken_wks_to_index(MIME_FIELD_ACCEPT);
+    MIME_WKSIDX_ACCEPT_CHARSET = hdrtoken_wks_to_index(MIME_FIELD_ACCEPT_CHARSET);
+    MIME_WKSIDX_ACCEPT_ENCODING = hdrtoken_wks_to_index(MIME_FIELD_ACCEPT_ENCODING);
+    MIME_WKSIDX_ACCEPT_LANGUAGE = hdrtoken_wks_to_index(MIME_FIELD_ACCEPT_LANGUAGE);
+    MIME_WKSIDX_ACCEPT_RANGES = hdrtoken_wks_to_index(MIME_FIELD_ACCEPT_RANGES);
+    MIME_WKSIDX_AGE = hdrtoken_wks_to_index(MIME_FIELD_AGE);
+    MIME_WKSIDX_ALLOW = hdrtoken_wks_to_index(MIME_FIELD_ALLOW);
+    MIME_WKSIDX_APPROVED = hdrtoken_wks_to_index(MIME_FIELD_APPROVED);
+    MIME_WKSIDX_AUTHORIZATION = hdrtoken_wks_to_index(MIME_FIELD_AUTHORIZATION);
+    MIME_WKSIDX_BYTES = hdrtoken_wks_to_index(MIME_FIELD_BYTES);
+    MIME_WKSIDX_CACHE_CONTROL = hdrtoken_wks_to_index(MIME_FIELD_CACHE_CONTROL);
+    MIME_WKSIDX_CLIENT_IP = hdrtoken_wks_to_index(MIME_FIELD_CLIENT_IP);
+    MIME_WKSIDX_CONNECTION = hdrtoken_wks_to_index(MIME_FIELD_CONNECTION);
+    MIME_WKSIDX_CONTENT_BASE = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_BASE);
+    MIME_WKSIDX_CONTENT_ENCODING = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_ENCODING);
+    MIME_WKSIDX_CONTENT_LANGUAGE = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_LANGUAGE);
+    MIME_WKSIDX_CONTENT_LENGTH = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_LENGTH);
+    MIME_WKSIDX_CONTENT_LOCATION = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_LOCATION);
+    MIME_WKSIDX_CONTENT_MD5 = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_MD5);
+    MIME_WKSIDX_CONTENT_RANGE = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_RANGE);
+    MIME_WKSIDX_CONTENT_TYPE = hdrtoken_wks_to_index(MIME_FIELD_CONTENT_TYPE);
+    MIME_WKSIDX_CONTROL = hdrtoken_wks_to_index(MIME_FIELD_CONTROL);
+    MIME_WKSIDX_COOKIE = hdrtoken_wks_to_index(MIME_FIELD_COOKIE);
+    MIME_WKSIDX_DATE = hdrtoken_wks_to_index(MIME_FIELD_DATE);
+    MIME_WKSIDX_DISTRIBUTION = hdrtoken_wks_to_index(MIME_FIELD_DISTRIBUTION);
+    MIME_WKSIDX_ETAG = hdrtoken_wks_to_index(MIME_FIELD_ETAG);
+    MIME_WKSIDX_EXPECT = hdrtoken_wks_to_index(MIME_FIELD_EXPECT);
+    MIME_WKSIDX_EXPIRES = hdrtoken_wks_to_index(MIME_FIELD_EXPIRES);
+    MIME_WKSIDX_FOLLOWUP_TO = hdrtoken_wks_to_index(MIME_FIELD_FOLLOWUP_TO);
+    MIME_WKSIDX_FROM = hdrtoken_wks_to_index(MIME_FIELD_FROM);
+    MIME_WKSIDX_HOST = hdrtoken_wks_to_index(MIME_FIELD_HOST);
+    MIME_WKSIDX_IF_MATCH = hdrtoken_wks_to_index(MIME_FIELD_IF_MATCH);
+    MIME_WKSIDX_IF_MODIFIED_SINCE = hdrtoken_wks_to_index(MIME_FIELD_IF_MODIFIED_SINCE);
+    MIME_WKSIDX_IF_NONE_MATCH = hdrtoken_wks_to_index(MIME_FIELD_IF_NONE_MATCH);
+    MIME_WKSIDX_IF_RANGE = hdrtoken_wks_to_index(MIME_FIELD_IF_RANGE);
+    MIME_WKSIDX_IF_UNMODIFIED_SINCE = hdrtoken_wks_to_index(MIME_FIELD_IF_UNMODIFIED_SINCE);
+    MIME_WKSIDX_KEEP_ALIVE = hdrtoken_wks_to_index(MIME_FIELD_KEEP_ALIVE);
+    MIME_WKSIDX_KEYWORDS = hdrtoken_wks_to_index(MIME_FIELD_KEYWORDS);
+    MIME_WKSIDX_LAST_MODIFIED = hdrtoken_wks_to_index(MIME_FIELD_LAST_MODIFIED);
+    MIME_WKSIDX_LINES = hdrtoken_wks_to_index(MIME_FIELD_LINES);
+    MIME_WKSIDX_LOCATION = hdrtoken_wks_to_index(MIME_FIELD_LOCATION);
+    MIME_WKSIDX_MAX_FORWARDS = hdrtoken_wks_to_index(MIME_FIELD_MAX_FORWARDS);
+    MIME_WKSIDX_MESSAGE_ID = hdrtoken_wks_to_index(MIME_FIELD_MESSAGE_ID);
+    MIME_WKSIDX_NEWSGROUPS = hdrtoken_wks_to_index(MIME_FIELD_NEWSGROUPS);
+    MIME_WKSIDX_ORGANIZATION = hdrtoken_wks_to_index(MIME_FIELD_ORGANIZATION);
+    MIME_WKSIDX_PATH = hdrtoken_wks_to_index(MIME_FIELD_PATH);
+    MIME_WKSIDX_PRAGMA = hdrtoken_wks_to_index(MIME_FIELD_PRAGMA);
+    MIME_WKSIDX_PROXY_AUTHENTICATE = hdrtoken_wks_to_index(MIME_FIELD_PROXY_AUTHENTICATE);
+    MIME_WKSIDX_PROXY_AUTHORIZATION = hdrtoken_wks_to_index(MIME_FIELD_PROXY_AUTHORIZATION);
+    MIME_WKSIDX_PROXY_CONNECTION = hdrtoken_wks_to_index(MIME_FIELD_PROXY_CONNECTION);
+    MIME_WKSIDX_PUBLIC = hdrtoken_wks_to_index(MIME_FIELD_PUBLIC);
+    MIME_WKSIDX_RANGE = hdrtoken_wks_to_index(MIME_FIELD_RANGE);
+    MIME_WKSIDX_REFERENCES = hdrtoken_wks_to_index(MIME_FIELD_REFERENCES);
+    MIME_WKSIDX_REFERER = hdrtoken_wks_to_index(MIME_FIELD_REFERER);
+    MIME_WKSIDX_REPLY_TO = hdrtoken_wks_to_index(MIME_FIELD_REPLY_TO);
+    MIME_WKSIDX_RETRY_AFTER = hdrtoken_wks_to_index(MIME_FIELD_RETRY_AFTER);
+    MIME_WKSIDX_SENDER = hdrtoken_wks_to_index(MIME_FIELD_SENDER);
+    MIME_WKSIDX_SERVER = hdrtoken_wks_to_index(MIME_FIELD_SERVER);
+    MIME_WKSIDX_SET_COOKIE = hdrtoken_wks_to_index(MIME_FIELD_SET_COOKIE);
+    MIME_WKSIDX_STRICT_TRANSPORT_SECURITY = hdrtoken_wks_to_index(MIME_FIELD_STRICT_TRANSPORT_SECURITY);
+    MIME_WKSIDX_SUBJECT = hdrtoken_wks_to_index(MIME_FIELD_SUBJECT);
+    MIME_WKSIDX_SUMMARY = hdrtoken_wks_to_index(MIME_FIELD_SUMMARY);
+    MIME_WKSIDX_TE = hdrtoken_wks_to_index(MIME_FIELD_TE);
+    MIME_WKSIDX_TRANSFER_ENCODING = hdrtoken_wks_to_index(MIME_FIELD_TRANSFER_ENCODING);
+    MIME_WKSIDX_UPGRADE = hdrtoken_wks_to_index(MIME_FIELD_UPGRADE);
+    MIME_WKSIDX_USER_AGENT = hdrtoken_wks_to_index(MIME_FIELD_USER_AGENT);
+    MIME_WKSIDX_VARY = hdrtoken_wks_to_index(MIME_FIELD_VARY);
+    MIME_WKSIDX_VIA = hdrtoken_wks_to_index(MIME_FIELD_VIA);
+    MIME_WKSIDX_WARNING = hdrtoken_wks_to_index(MIME_FIELD_WARNING);
+    MIME_WKSIDX_WWW_AUTHENTICATE = hdrtoken_wks_to_index(MIME_FIELD_WWW_AUTHENTICATE);
+    MIME_WKSIDX_XREF = hdrtoken_wks_to_index(MIME_FIELD_XREF);
+    MIME_WKSIDX_X_ID = hdrtoken_wks_to_index(MIME_FIELD_X_ID);
+    MIME_WKSIDX_X_FORWARDED_FOR = hdrtoken_wks_to_index(MIME_FIELD_X_FORWARDED_FOR);
+    MIME_WKSIDX_SEC_WEBSOCKET_KEY = hdrtoken_wks_to_index(MIME_FIELD_SEC_WEBSOCKET_KEY);
+    MIME_WKSIDX_SEC_WEBSOCKET_VERSION = hdrtoken_wks_to_index(MIME_FIELD_SEC_WEBSOCKET_VERSION);
+
+    MIME_VALUE_BYTES = hdrtoken_string_to_wks("bytes");
+    MIME_VALUE_CHUNKED = hdrtoken_string_to_wks("chunked");
+    MIME_VALUE_CLOSE = hdrtoken_string_to_wks("close");
+    MIME_VALUE_COMPRESS = hdrtoken_string_to_wks("compress");
+    MIME_VALUE_DEFLATE = hdrtoken_string_to_wks("deflate");
+    MIME_VALUE_GZIP = hdrtoken_string_to_wks("gzip");
+    MIME_VALUE_IDENTITY = hdrtoken_string_to_wks("identity");
+    MIME_VALUE_KEEP_ALIVE = hdrtoken_string_to_wks("keep-alive");
+    MIME_VALUE_MAX_AGE = hdrtoken_string_to_wks("max-age");
+    MIME_VALUE_MAX_STALE = hdrtoken_string_to_wks("max-stale");
+    MIME_VALUE_MIN_FRESH = hdrtoken_string_to_wks("min-fresh");
+    MIME_VALUE_MUST_REVALIDATE = hdrtoken_string_to_wks("must-revalidate");
+    MIME_VALUE_NONE = hdrtoken_string_to_wks("none");
+    MIME_VALUE_NO_CACHE = hdrtoken_string_to_wks("no-cache");
+    MIME_VALUE_NO_STORE = hdrtoken_string_to_wks("no-store");
+    MIME_VALUE_NO_TRANSFORM = hdrtoken_string_to_wks("no-transform");
+    MIME_VALUE_ONLY_IF_CACHED = hdrtoken_string_to_wks("only-if-cached");
+    MIME_VALUE_PRIVATE = hdrtoken_string_to_wks("private");
+    MIME_VALUE_PROXY_REVALIDATE = hdrtoken_string_to_wks("proxy-revalidate");
+    MIME_VALUE_PUBLIC = hdrtoken_string_to_wks("public");
+    MIME_VALUE_S_MAXAGE = hdrtoken_string_to_wks("s-maxage");
+    MIME_VALUE_NEED_REVALIDATE_ONCE = hdrtoken_string_to_wks("need-revalidate-once");
+    MIME_VALUE_WEBSOCKET = hdrtoken_string_to_wks("websocket");
+
+
+    mime_init_date_format_table();
+    mime_init_cache_control_cooking_masks();
+  }
+}
+
+void
+mime_init_cache_control_cooking_masks()
+{
+  static struct
+  {
+    const char *name;
+    uint32_t mask;
+  } cc_mask_table[] = {
+    {
+    "max-age", MIME_COOKED_MASK_CC_MAX_AGE}, {
+    "no-cache", MIME_COOKED_MASK_CC_NO_CACHE}, {
+    "no-store", MIME_COOKED_MASK_CC_NO_STORE}, {
+    "no-transform", MIME_COOKED_MASK_CC_NO_TRANSFORM}, {
+    "max-stale", MIME_COOKED_MASK_CC_MAX_STALE}, {
+    "min-fresh", MIME_COOKED_MASK_CC_MIN_FRESH}, {
+    "only-if-cached", MIME_COOKED_MASK_CC_ONLY_IF_CACHED}, {
+    "public", MIME_COOKED_MASK_CC_PUBLIC}, {
+    "private", MIME_COOKED_MASK_CC_PRIVATE}, {
+    "must-revalidate", MIME_COOKED_MASK_CC_MUST_REVALIDATE}, {
+    "proxy-revalidate", MIME_COOKED_MASK_CC_PROXY_REVALIDATE}, {
+    "s-maxage", MIME_COOKED_MASK_CC_S_MAXAGE}, {
+    "need-revalidate-once", MIME_COOKED_MASK_CC_NEED_REVALIDATE_ONCE}, {
+    NULL, 0}
+  };
+
+  for (int i = 0; cc_mask_table[i].name != NULL; i++) {
+    const char *wks = hdrtoken_string_to_wks(cc_mask_table[i].name);
+    HdrTokenHeapPrefix *p = hdrtoken_wks_to_prefix(wks);
+    p->wks_type_specific.u.cache_control.cc_mask = cc_mask_table[i].mask;
+  }
+}
+
+void
+mime_init_date_format_table()
+{
+  ////////////////////////////////////////////////////////////////
+  // to speed up the days_since_epoch to m/d/y conversion, we   //
+  // use a pre-computed lookup table to support the common case //
+  // of dates that are +/- one year from today --- this code    //
+  // builds the lookup table during the first call.             //
+  ////////////////////////////////////////////////////////////////
+
+  time_t now_secs;
+  int i, now_days, first_days, last_days, num_days;
+  int m=0, d=0, y=0;
+
+  time(&now_secs);
+  now_days = (int) (now_secs / (60 * 60 * 24));
+  first_days = now_days - 366;
+  last_days = now_days + 366;
+  num_days = last_days - first_days + 1;
+
+  _days_to_mdy_fast_lookup_table = (MDY *)ats_malloc(num_days * sizeof(MDY));
+  _days_to_mdy_fast_lookup_table_first_day = first_days;
+  _days_to_mdy_fast_lookup_table_last_day = last_days;
+
+  for (i = 0; i < num_days; i++) {
+    mime_days_since_epoch_to_mdy_slowcase(first_days + i, &m, &d, &y);
+    _days_to_mdy_fast_lookup_table[i].m = m;
+    _days_to_mdy_fast_lookup_table[i].d = d;
+    _days_to_mdy_fast_lookup_table[i].y = y;
+  }
+}
+
+MIMEHdrImpl *
+mime_hdr_create(HdrHeap *heap)
+{
+  MIMEHdrImpl *mh;
+
+  mh = (MIMEHdrImpl *) heap->allocate_obj(sizeof(MIMEHdrImpl), HDR_HEAP_OBJ_MIME_HEADER);
+  mime_hdr_init(mh);
+  return mh;
+}
+
+void
+_mime_hdr_field_block_init(MIMEFieldBlockImpl *fblock)
+{
+  fblock->m_freetop = 0;
+  fblock->m_next = NULL;
+
+#ifdef BLOCK_INIT_PARANOIA
+  int i;
+
+  // FIX: Could eliminate this initialization loop if we assumed
+  //      every slot above the freetop of the block was garbage;
+  //      but to be safe, and help debugging, for now we are eating
+  //      the cost of initializing all slots in a block.
+
+  for (i = 0; i < MIME_FIELD_BLOCK_SLOTS; i++) {
+    MIMEField *field = &(fblock->m_field_slots[i]);
+    field->m_readiness = MIME_FIELD_SLOT_READINESS_EMPTY;
+  }
+#endif
+}
+
+void
+mime_hdr_cooked_stuff_init(MIMEHdrImpl *mh, MIMEField *changing_field_or_null)
+{
+
+  // to be safe, reinitialize unless you know this call is for other cooked field
+  if ((changing_field_or_null == NULL) || (changing_field_or_null->m_wks_idx != MIME_WKSIDX_PRAGMA)) {
+    mh->m_cooked_stuff.m_cache_control.m_mask = 0;
+    mh->m_cooked_stuff.m_cache_control.m_secs_max_age = 0;
+    mh->m_cooked_stuff.m_cache_control.m_secs_s_maxage = 0;
+    mh->m_cooked_stuff.m_cache_control.m_secs_max_stale = 0;
+    mh->m_cooked_stuff.m_cache_control.m_secs_min_fresh = 0;
+  }
+  if ((changing_field_or_null == NULL) || (changing_field_or_null->m_wks_idx != MIME_WKSIDX_CACHE_CONTROL)) {
+    mh->m_cooked_stuff.m_pragma.m_no_cache = 0;
+  }
+}
+
+void
+mime_hdr_init(MIMEHdrImpl *mh)
+{
+  mh->m_presence_bits = 0;
+  mh->m_slot_accelerators[0] = 0xFFFFFFFF;
+  mh->m_slot_accelerators[1] = 0xFFFFFFFF;
+  mh->m_slot_accelerators[2] = 0xFFFFFFFF;
+  mh->m_slot_accelerators[3] = 0xFFFFFFFF;
+
+  mime_hdr_cooked_stuff_init(mh, NULL);
+
+  // first header is inline: fake an object header for uniformity
+  obj_init_header((HdrHeapObjImpl *) & (mh->m_first_fblock), HDR_HEAP_OBJ_FIELD_BLOCK, sizeof(MIMEFieldBlockImpl), 0);
+
+  _mime_hdr_field_block_init(&(mh->m_first_fblock));
+  mh->m_fblock_list_tail = &(mh->m_first_fblock);
+
+  MIME_HDR_SANITY_CHECK(mh);
+}
+
+MIMEFieldBlockImpl *
+_mime_field_block_copy(MIMEFieldBlockImpl *s_fblock, HdrHeap * /* s_heap ATS_UNUSED */, HdrHeap *d_heap)
+{
+  MIMEFieldBlockImpl *d_fblock;
+
+  d_fblock = (MIMEFieldBlockImpl *)
+    d_heap->allocate_obj(sizeof(MIMEFieldBlockImpl), HDR_HEAP_OBJ_FIELD_BLOCK);
+  memcpy(d_fblock, s_fblock, sizeof(MIMEFieldBlockImpl));
+  return d_fblock;
+}
+
+void
+_mime_field_block_destroy(HdrHeap *heap, MIMEFieldBlockImpl *fblock)
+{
+  heap->deallocate_obj(fblock);
+}
+
+void
+mime_hdr_destroy_field_block_list(HdrHeap *heap, MIMEFieldBlockImpl *head)
+{
+  MIMEFieldBlockImpl *next;
+
+  while (head != NULL) {
+    next = head->m_next;
+    _mime_field_block_destroy(heap, head);
+    head = next;
+  }
+}
+
+void
+mime_hdr_destroy(HdrHeap *heap, MIMEHdrImpl *mh)
+{
+  mime_hdr_destroy_field_block_list(heap, mh->m_first_fblock.m_next);
+
+  // INKqa11458: if we deallocate mh here and call TSMLocRelease
+  // again, the plugin fails in assert. We leave deallocating to
+  // the plugin using TSMLocRelease
+
+  //heap->deallocate_obj(mh);
+}
+
+void
+mime_hdr_copy_onto(MIMEHdrImpl *s_mh, HdrHeap *s_heap, MIMEHdrImpl *d_mh, HdrHeap *d_heap, bool inherit_strs)
+{
+  int block_count;
+  MIMEFieldBlockImpl *s_fblock, *d_fblock, *prev_d_fblock;
+
+  // If there are chained field blocks beyond the first one, we're just going to
+  //   destroy them.  Ideally, we'd use them if the copied in header needed
+  //   extra blocks.  It's too late in the Tomcat code cycle to implement
+  //   reuse.
+  if (d_mh->m_first_fblock.m_next) {
+    mime_hdr_destroy_field_block_list(d_heap, d_mh->m_first_fblock.m_next);
+  }
+
+  ink_assert(((char *) &(s_mh->m_first_fblock.m_field_slots[MIME_FIELD_BLOCK_SLOTS]) - (char *) s_mh) ==
+                   sizeof(struct MIMEHdrImpl));
+
+  int top = s_mh->m_first_fblock.m_freetop;
+  char *end = (char *) &(s_mh->m_first_fblock.m_field_slots[top]);
+  int bytes_below_top = end - (char *) s_mh;
+
+  // copies useful part of enclosed first block too
+  memcpy(d_mh, s_mh, bytes_below_top);
+
+  if (d_mh->m_first_fblock.m_next == NULL)      // common case: no other block
+  {
+    d_mh->m_fblock_list_tail = &(d_mh->m_first_fblock);
+    block_count = 1;
+  } else                        // uncommon case: block list exists
+  {
+    prev_d_fblock = &(d_mh->m_first_fblock);
+    block_count = 1;
+    for (s_fblock = s_mh->m_first_fblock.m_next; s_fblock != NULL; s_fblock = s_fblock->m_next) {
+      ++block_count;
+      d_fblock = _mime_field_block_copy(s_fblock, s_heap, d_heap);
+      prev_d_fblock->m_next = d_fblock;
+      prev_d_fblock = d_fblock;
+    }
+    d_mh->m_fblock_list_tail = prev_d_fblock;
+  }
+
+  if (inherit_strs)
+    d_heap->inherit_string_heaps(s_heap);
+
+  mime_hdr_field_block_list_adjust(block_count, &(s_mh->m_first_fblock), &(d_mh->m_first_fblock));
+
+  MIME_HDR_SANITY_CHECK(s_mh);
+  MIME_HDR_SANITY_CHECK(d_mh);
+}
+
+MIMEHdrImpl *
+mime_hdr_clone(MIMEHdrImpl *s_mh, HdrHeap *s_heap, HdrHeap *d_heap, bool inherit_strs)
+{
+  MIMEHdrImpl *d_mh;
+
+  d_mh = mime_hdr_create(d_heap);
+  mime_hdr_copy_onto(s_mh, s_heap, d_mh, d_heap, inherit_strs);
+  return d_mh;
+}
+
+/** Move a pointer from one list to another, keeping the relative offset.
+ * @return A pointer that has the same relative offset to @a dest_base as
+ * @a dest_ptr does to @a src_base.
+ */
+static inline MIMEField *rebase(
+  MIMEField *dest_ptr, ///< Original pointer into @src_base memory.
+  void *dest_base,     ///< New base pointer.
+  void *src_base       ///< Original base pointer.
+) {
+  return reinterpret_cast<MIMEField *>
+    (reinterpret_cast<char *>(dest_ptr) + (static_cast<char *>(dest_base) - static_cast<char *>(src_base)));
+}
+
+static inline void relocate(MIMEField *field, MIMEFieldBlockImpl *dest_block, MIMEFieldBlockImpl *src_block)
+{
+  for ( ; src_block; src_block = src_block->m_next, dest_block = dest_block->m_next) {
+    ink_release_assert(dest_block) ;
+
+    if (field->m_next_dup >= src_block->m_field_slots &&
+        field->m_next_dup < src_block->m_field_slots + src_block->m_freetop) {
+      field->m_next_dup = rebase(field->m_next_dup, dest_block->m_field_slots, src_block->m_field_slots);
+      return;
+    }
+  }
+}
+
+void
+mime_hdr_field_block_list_adjust(int /* block_count ATS_UNUSED */, MIMEFieldBlockImpl *old_list,
+                                 MIMEFieldBlockImpl *new_list)
+{
+  for (MIMEFieldBlockImpl *new_blk = new_list; new_blk; new_blk = new_blk->m_next) {
+    for (MIMEField *field = new_blk->m_field_slots, *end=field + new_blk->m_freetop; field != end; ++field) {
+      if (field->is_live() && field->m_next_dup) {
+        relocate(field, new_list, old_list);
+      }
+    }
+  }
+}
+
+int
+mime_hdr_length_get(MIMEHdrImpl *mh)
+{
+  unsigned int length, index;
+  MIMEFieldBlockImpl *fblock;
+  MIMEField *field;
+
+  length = 2;
+
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    for (index = 0; index < fblock->m_freetop; index++) {
+      field = &(fblock->m_field_slots[index]);
+      if (field->is_live()) {
+        length += mime_field_length_get(field);
+      }
+    }
+  }
+
+  return length;
+}
+
+void
+mime_hdr_fields_clear(HdrHeap *heap, MIMEHdrImpl *mh)
+{
+  mime_hdr_destroy_field_block_list(heap, mh->m_first_fblock.m_next);
+  mime_hdr_init(mh);
+}
+
+MIMEField *
+_mime_hdr_field_list_search_by_wks(MIMEHdrImpl *mh, int wks_idx)
+{
+  MIMEFieldBlockImpl *fblock;
+  MIMEField *field, *too_far_field;
+
+  ink_assert(hdrtoken_is_valid_wks_idx(wks_idx));
+
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    field = &(fblock->m_field_slots[0]);
+
+    too_far_field = &(fblock->m_field_slots[fblock->m_freetop]);
+    while (field < too_far_field) {
+      if (field->is_live() && (field->m_wks_idx == wks_idx))
+        return field;
+      ++field;
+    }
+  }
+
+  return NULL;
+}
+
+MIMEField *
+_mime_hdr_field_list_search_by_string(MIMEHdrImpl *mh, const char *field_name_str, int field_name_len)
+{
+  MIMEFieldBlockImpl *fblock;
+  MIMEField *field, *too_far_field;
+
+  ink_assert(mh);
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    field = &(fblock->m_field_slots[0]);
+
+    too_far_field = &(fblock->m_field_slots[fblock->m_freetop]);
+    while (field < too_far_field) {
+      if (field->is_live() &&
+          (field_name_len == field->m_len_name) &&
+          (strncasecmp(field->m_ptr_name, field_name_str, field_name_len) == 0)) {
+        return field;
+      }
+      ++field;
+    }
+  }
+
+  return NULL;
+}
+
+MIMEField *
+_mime_hdr_field_list_search_by_slotnum(MIMEHdrImpl *mh, int slotnum)
+{
+  unsigned int block_num, block_index;
+  MIMEFieldBlockImpl *fblock;
+
+  if (slotnum < MIME_FIELD_BLOCK_SLOTS) {
+    fblock = &(mh->m_first_fblock);
+    block_index = slotnum;
+    if (block_index >= fblock->m_freetop) {
+      return NULL;
+    } else {
+      return &(fblock->m_field_slots[block_index]);
+    }
+  } else {
+    block_num = slotnum / MIME_FIELD_BLOCK_SLOTS;
+    block_index = slotnum % MIME_FIELD_BLOCK_SLOTS;
+
+    fblock = &(mh->m_first_fblock);
+    while (block_num-- && fblock)
+      fblock = fblock->m_next;
+    if ((fblock == NULL) || (block_index >= fblock->m_freetop))
+      return NULL;
+    else
+      return &(fblock->m_field_slots[block_index]);
+  }
+}
+
+MIMEField *
+mime_hdr_field_find(MIMEHdrImpl *mh, const char *field_name_str, int field_name_len)
+{
+  int is_wks;
+  HdrTokenHeapPrefix *token_info;
+
+  ink_assert(field_name_len >= 0);
+
+  ////////////////////////////////////////////
+  // do presence check and slot accelerator //
+  ////////////////////////////////////////////
+
+  is_wks = hdrtoken_is_wks(field_name_str);
+#if TRACK_FIELD_FIND_CALLS
+  Debug("http", "mime_hdr_field_find(hdr 0x%X, field %.*s): is_wks = %d\n", mh, field_name_len, field_name_str, is_wks);
+#endif
+
+  if (is_wks) {
+    token_info = hdrtoken_wks_to_prefix(field_name_str);
+    if ((token_info->wks_info.mask) && ((mh->m_presence_bits & token_info->wks_info.mask) == 0)) {
+#if TRACK_FIELD_FIND_CALLS
+      Debug("http", "mime_hdr_field_find(hdr 0x%X, field %.*s): MISS (due to presence bits)\n",
+            mh, field_name_len, field_name_str);
+#endif
+      return NULL;
+    }
+
+    int32_t slot_id = token_info->wks_info.slotid;
+
+    if (slot_id != MIME_SLOTID_NONE) {
+      uint32_t slotnum = mime_hdr_get_accelerator_slotnum(mh, slot_id);
+
+      if (slotnum != MIME_FIELD_SLOTNUM_UNKNOWN) {
+        MIMEField *f = _mime_hdr_field_list_search_by_slotnum(mh, slotnum);
+        ink_assert((f == NULL) || f->is_live());
+#if TRACK_FIELD_FIND_CALLS
+        Debug("http", "mime_hdr_field_find(hdr 0x%X, field %.*s): %s (due to slot accelerators)\n",
+              mh, field_name_len, field_name_str, (f ? "HIT" : "MISS"));
+#endif
+        return f;
+      } else {
+#if TRACK_FIELD_FIND_CALLS
+        Debug("http", "mime_hdr_field_find(hdr 0x%X, field %.*s): UNKNOWN (slot too big)\n",
+              mh, field_name_len, field_name_str);
+#endif
+      }
+    }
+  }
+  ///////////////////////////////////////////////////////////////////////////
+  // search by well-known string index or by case-insensitive string match //
+  ///////////////////////////////////////////////////////////////////////////
+
+  if (is_wks) {
+    MIMEField *f = _mime_hdr_field_list_search_by_wks(mh, token_info->wks_idx);
+    ink_assert((f == NULL) || f->is_live());
+#if TRACK_FIELD_FIND_CALLS
+    Debug("http", "mime_hdr_field_find(hdr 0x%X, field %.*s): %s (due to WKS list walk)\n",
+          mh, field_name_len, field_name_str, (f ? "HIT" : "MISS"));
+#endif
+    return f;
+  } else {
+    MIMEField *f = _mime_hdr_field_list_search_by_string(mh, field_name_str, field_name_len);
+
+    ink_assert((f == NULL) || f->is_live());
+#if TRACK_FIELD_FIND_CALLS
+    Debug("http", "mime_hdr_field_find(hdr 0x%X, field %.*s): %s (due to strcmp list walk)\n",
+          mh, field_name_len, field_name_str, (f ? "HIT" : "MISS"));
+#endif
+    return f;
+  }
+}
+
+MIMEField *
+mime_hdr_field_get(MIMEHdrImpl *mh, int idx)
+{
+  unsigned int index;
+  MIMEFieldBlockImpl *fblock;
+  MIMEField *field;
+  int got_idx;
+
+  got_idx = -1;
+
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    for (index = 0; index < fblock->m_freetop; index++) {
+      field = &(fblock->m_field_slots[index]);
+      if (field->is_live())
+        ++got_idx;
+      if (got_idx == idx)
+        return field;
+    }
+  }
+
+  return NULL;
+}
+
+MIMEField *
+mime_hdr_field_get_slotnum(MIMEHdrImpl *mh, int slotnum)
+{
+  return _mime_hdr_field_list_search_by_slotnum(mh, slotnum);
+}
+
+int
+mime_hdr_fields_count(MIMEHdrImpl *mh)
+{
+  unsigned int index;
+  MIMEFieldBlockImpl *fblock;
+  MIMEField *field;
+  int count;
+
+  count = 0;
+
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    for (index = 0; index < fblock->m_freetop; index++) {
+      field = &(fblock->m_field_slots[index]);
+      if (field->is_live())
+        ++count;
+    }
+  }
+
+  return count;
+}
+
+void
+mime_field_init(MIMEField *field)
+{
+  memset(field, 0, sizeof(MIMEField));
+  field->m_readiness = MIME_FIELD_SLOT_READINESS_DETACHED;
+  field->m_wks_idx = -1;
+}
+
+MIMEField *
+mime_field_create(HdrHeap *heap, MIMEHdrImpl *mh)
+{
+  MIMEField *field;
+  MIMEFieldBlockImpl *tail_fblock, *new_fblock;
+
+  tail_fblock = mh->m_fblock_list_tail;
+  if (tail_fblock->m_freetop >= MIME_FIELD_BLOCK_SLOTS) {
+    new_fblock = (MIMEFieldBlockImpl *)
+      heap->allocate_obj(sizeof(MIMEFieldBlockImpl), HDR_HEAP_OBJ_FIELD_BLOCK);
+    _mime_hdr_field_block_init(new_fblock);
+    tail_fblock->m_next = new_fblock;
+    tail_fblock = new_fblock;
+    mh->m_fblock_list_tail = new_fblock;
+  }
+
+  field = &(tail_fblock->m_field_slots[tail_fblock->m_freetop]);
+  ++tail_fblock->m_freetop;
+
+  mime_field_init(field);
+
+  return field;
+}
+
+MIMEField *
+mime_field_create_named(HdrHeap *heap, MIMEHdrImpl *mh, const char *name, int length)
+{
+  MIMEField *field = mime_field_create(heap, mh);
+  int field_name_wks_idx = hdrtoken_tokenize(name, length);
+  mime_field_name_set(heap, mh, field, field_name_wks_idx, name, length, 1);
+  return field;
+}
+
+void
+mime_hdr_field_attach(MIMEHdrImpl *mh, MIMEField *field, int check_for_dups, MIMEField *prev_dup)
+{
+  MIME_HDR_SANITY_CHECK(mh);
+
+  if (!field->is_detached()) {
+    return;
+  }
+
+  ink_assert(field->m_ptr_name != NULL);
+
+  //////////////////////////////////////////////////
+  // if we don't know the head dup, or are given  //
+  // a non-head dup, then search for the head dup //
+  //////////////////////////////////////////////////
+
+  if (check_for_dups || (prev_dup && (!prev_dup->is_dup_head()))) {
+    int length;
+    const char *name = mime_field_name_get(field, &length);
+    prev_dup = mime_hdr_field_find(mh, name, length);
+    ink_assert((prev_dup == NULL) || (prev_dup->is_dup_head()));
+  }
+
+  field->m_readiness = MIME_FIELD_SLOT_READINESS_LIVE;
+
+  ////////////////////////////////////////////////////////////////////
+  // now, attach the new field --- if there are dups, make sure the //
+  // field is patched into the dup list in increasing slot order to //
+  // maintain the invariant that dups are chained in slot order     //
+  ////////////////////////////////////////////////////////////////////
+
+  if (prev_dup) {
+    MIMEField *next_dup;
+    int field_slotnum, prev_slotnum, next_slotnum;
+
+    /////////////////////////////////////////////////////////////////
+    // walk down dup list looking for the last dup in slot-order   //
+    // before this field object --- meaning a dup before the field //
+    // in slot order who either has no next dup, or whose next dup //
+    // is numerically after the field in slot order.               //
+    /////////////////////////////////////////////////////////////////
+
+    field_slotnum = mime_hdr_field_slotnum(mh, field);
+    prev_slotnum = mime_hdr_field_slotnum(mh, prev_dup);
+    next_dup = prev_dup->m_next_dup;
+    next_slotnum = (next_dup ? mime_hdr_field_slotnum(mh, next_dup) : -1);
+
+    ink_assert(field_slotnum != prev_slotnum);
+
+    while (prev_slotnum < field_slotnum)        // break if prev after field
+    {
+      if (next_dup == NULL)
+        break;                  // no next dup, we're done
+      if (next_slotnum > field_slotnum)
+        break;                  // next dup is after us, we're done
+      prev_dup = next_dup;
+      prev_slotnum = next_slotnum;
+      next_dup = prev_dup->m_next_dup;
+    }
+
+    /////////////////////////////////////////////////////
+    // we get here if the prev_slotnum > field_slotnum //
+    // (meaning we're now the first dup in the list),  //
+    // or when we've found the correct prev and next   //
+    /////////////////////////////////////////////////////
+
+    if (prev_slotnum > field_slotnum)   // we are now the head
+    {
+      /////////////////////////////////////////////////////////////
+      // here, it turns out that "prev_dup" is actually after    //
+      // "field" in the list of fields --- so, prev_dup is a bit //
+      // of a misnomer, it is actually, the NEXT field!          //
+      /////////////////////////////////////////////////////////////
+
+      field->m_flags = (field->m_flags | MIME_FIELD_SLOT_FLAGS_DUP_HEAD);
+      field->m_next_dup = prev_dup;
+      prev_dup->m_flags = (prev_dup->m_flags & ~MIME_FIELD_SLOT_FLAGS_DUP_HEAD);
+      mime_hdr_set_accelerators_and_presence_bits(mh, field);
+    } else                      // patch us after prev, and before next
+    {
+      ink_assert(prev_slotnum < field_slotnum);
+      ink_assert((next_dup == NULL) || (next_slotnum > field_slotnum));
+      field->m_flags = (field->m_flags & ~MIME_FIELD_SLOT_FLAGS_DUP_HEAD);
+      ink_assert((next_dup == NULL) || next_dup->is_live());
+      prev_dup->m_next_dup = field;
+      field->m_next_dup = next_dup;
+    }
+  } else {
+    field->m_flags = (field->m_flags | MIME_FIELD_SLOT_FLAGS_DUP_HEAD);
+    mime_hdr_set_accelerators_and_presence_bits(mh, field);
+  }
+
+  // Now keep the cooked cache consistent
+  ink_assert(field->is_live());
+  if (field->m_ptr_value && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+
+  MIME_HDR_SANITY_CHECK(mh);
+}
+
+void
+mime_hdr_field_detach(MIMEHdrImpl *mh, MIMEField *field, bool detach_all_dups)
+{
+  MIMEField *next_dup = field->m_next_dup;
+
+  // If this field is already detached, there's nothing to do. There must
+  // not be a dup list if we detached correctly.
+  if (field->is_detached()) {
+    ink_assert(next_dup == NULL);
+    return;
+  }
+
+  ink_assert(field->is_live());
+  MIME_HDR_SANITY_CHECK(mh);
+
+  // Normally, this function is called with the current dup list head,
+  // so, we need to update the accelerators after the patch out.  But, if
+  // this function is ever called in the middle of a dup list, we need
+  // to walk the list to find the previous dup in the list to patch out
+  // the dup being detached.
+
+  if (field->m_flags & MIME_FIELD_SLOT_FLAGS_DUP_HEAD)  // head of list?
+  {
+    if (!next_dup)              // only child
+    {
+      mime_hdr_unset_accelerators_and_presence_bits(mh, field);
+    } else                      // next guy is dup head
+    {
+      next_dup->m_flags |= MIME_FIELD_SLOT_FLAGS_DUP_HEAD;
+      mime_hdr_set_accelerators_and_presence_bits(mh, next_dup);
+    }
+  } else                        // need to walk list to find and patch out from predecessor
+  {
+    int name_length;
+    const char *name = mime_field_name_get(field, &name_length);
+    MIMEField *prev = mime_hdr_field_find(mh, name, name_length);
+
+    while (prev && (prev->m_next_dup != field))
+      prev = prev->m_next_dup;
+    ink_assert(prev != NULL);
+
+    if (prev->m_next_dup == field)
+      prev->m_next_dup = next_dup;
+  }
+
+  // Field is now detached and alone
+  field->m_readiness = MIME_FIELD_SLOT_READINESS_DETACHED;
+  field->m_next_dup = NULL;
+
+  // Because we changed the values through detaching,update the cooked cache
+  if (field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+
+  MIME_HDR_SANITY_CHECK(mh);
+
+  // At this point, the list should be back to a valid state, either the
+  // next dup detached and the accelerators set to the next dup (if any),
+  // or an interior dup detached and patched around.  If we are requested
+  // to delete the whole dup list, we tail-recurse to delete it.
+
+  if (detach_all_dups && next_dup)
+    mime_hdr_field_detach(mh, next_dup, detach_all_dups);
+}
+
+void
+mime_hdr_field_delete(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, bool delete_all_dups)
+{
+  if (delete_all_dups) {
+    while (field) {
+      // NOTE: we pass zero to field_detach for detach_all_dups
+      //       since this loop will already detach each dup
+      MIMEField *next = field->m_next_dup;
+
+      heap->free_string(field->m_ptr_name, field->m_len_name);
+      heap->free_string(field->m_ptr_value, field->m_len_value);
+
+      MIME_HDR_SANITY_CHECK(mh);
+      mime_hdr_field_detach(mh, field, 0);
+
+      MIME_HDR_SANITY_CHECK(mh);
+      mime_field_destroy(mh, field);
+
+      MIME_HDR_SANITY_CHECK(mh);
+      field = next;
+    }
+  } else {
+    heap->free_string(field->m_ptr_name, field->m_len_name);
+    heap->free_string(field->m_ptr_value, field->m_len_value);
+
+    MIME_HDR_SANITY_CHECK(mh);
+    mime_hdr_field_detach(mh, field, 0);
+
+    MIME_HDR_SANITY_CHECK(mh);
+    mime_field_destroy(mh, field);
+  }
+
+  MIME_HDR_SANITY_CHECK(mh);
+}
+
+int
+mime_hdr_field_slotnum(MIMEHdrImpl *mh, MIMEField *field)
+{
+  int slots_so_far;
+  MIMEFieldBlockImpl *fblock;
+
+  slots_so_far = 0;
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    MIMEField *first = &(fblock->m_field_slots[0]);
+    int block_slot = (int) (field - first);     // in units of MIMEField
+    if ((block_slot >= 0) && (block_slot < MIME_FIELD_BLOCK_SLOTS))
+      return (slots_so_far + block_slot);
+    slots_so_far += MIME_FIELD_BLOCK_SLOTS;
+  }
+  return -1;
+}
+
+MIMEField *
+mime_hdr_prepare_for_value_set(HdrHeap *heap, MIMEHdrImpl *mh, const char *name, int name_length)
+{
+  int wks_idx;
+  MIMEField *field;
+
+  field = mime_hdr_field_find(mh, name, name_length);
+
+  //////////////////////////////////////////////////////////////////////
+  // this function returns with exactly one attached field created,   //
+  // ready to have its value set.                                     //
+  //                                                                  //
+  // on return from field_find, there are 3 possibilities:            //
+  //   no field found:      create attached, named field              //
+  //   field found w/dups:  delete list, create attached, named field //
+  //   dupless field found: return the field for mutation             //
+  //////////////////////////////////////////////////////////////////////
+
+  if (field == NULL)            // no fields of this name
+  {
+    wks_idx = hdrtoken_tokenize(name, name_length);
+    field = mime_field_create(heap, mh);
+    mime_field_name_set(heap, mh, field, wks_idx, name, name_length, 1);
+    mime_hdr_field_attach(mh, field, 0, NULL);
+
+  } else if (field->m_next_dup) // list of more than 1 field
+  {
+    wks_idx = field->m_wks_idx;
+    mime_hdr_field_delete(heap, mh, field, true);
+    field = mime_field_create(heap, mh);
+    mime_field_name_set(heap, mh, field, wks_idx, name, name_length, 1);
+    mime_hdr_field_attach(mh, field, 0, NULL);
+  }
+  return field;
+}
+
+void
+mime_field_destroy(MIMEHdrImpl */* mh ATS_UNUSED */, MIMEField *field)
+{
+  ink_assert(field->m_readiness == MIME_FIELD_SLOT_READINESS_DETACHED);
+  field->m_readiness = MIME_FIELD_SLOT_READINESS_DELETED;
+}
+
+const char *
+mime_field_name_get(MIMEField *field, int *length)
+{
+  *length = field->m_len_name;
+  if (field->m_wks_idx >= 0)
+    return hdrtoken_index_to_wks(field->m_wks_idx);
+  else
+    return field->m_ptr_name;
+}
+
+void
+mime_field_name_set(HdrHeap *heap, MIMEHdrImpl */* mh ATS_UNUSED */, MIMEField *field, int16_t name_wks_idx_or_neg1,
+                    const char *name, int length, bool must_copy_string)
+{
+  ink_assert(field->m_readiness == MIME_FIELD_SLOT_READINESS_DETACHED);
+
+  field->m_wks_idx = name_wks_idx_or_neg1;
+  mime_str_u16_set(heap, name, length, &(field->m_ptr_name), &(field->m_len_name), must_copy_string);
+
+  if ((name_wks_idx_or_neg1 == MIME_WKSIDX_CACHE_CONTROL) || (name_wks_idx_or_neg1 == MIME_WKSIDX_PRAGMA)) {
+    field->m_flags |= MIME_FIELD_SLOT_FLAGS_COOKED;
+  }
+}
+
+const char *
+mime_field_value_get(MIMEField *field, int *length)
+{
+  *length = field->m_len_value;
+  return field->m_ptr_value;
+}
+
+int32_t
+mime_field_value_get_int(MIMEField *field)
+{
+  int length;
+  const char *str = mime_field_value_get(field, &length);
+
+  return mime_parse_int(str, str + length);
+}
+
+uint32_t
+mime_field_value_get_uint(MIMEField *field)
+{
+  int length;
+  const char *str = mime_field_value_get(field, &length);
+  return mime_parse_uint(str, str + length);
+}
+
+int64_t
+mime_field_value_get_int64(MIMEField *field)
+{
+  int length;
+  const char *str = mime_field_value_get(field, &length);
+
+  return mime_parse_int64(str, str + length);
+}
+
+time_t
+mime_field_value_get_date(MIMEField *field)
+{
+  int length;
+  const char *str = mime_field_value_get(field, &length);
+  return mime_parse_date(str, str + length);
+}
+
+const char *
+mime_field_value_get_comma_val(MIMEField *field, int *length, int idx)
+{
+  // some fields (like Date) contain commas but should not be ripped apart
+  if (!field->supports_commas()) {
+    if (idx == 0)
+      return mime_field_value_get(field, length);
+    else
+      return NULL;
+  } else {
+    Str *str;
+    StrList list(false);
+
+    mime_field_value_get_comma_list(field, &list);
+    str = list.get_idx(idx);
+    if (str != NULL) {
+      *length = (int) (str->len);
+      return str->str;
+    } else {
+      *length = 0;
+      return NULL;
+    }
+  }
+}
+
+int
+mime_field_value_get_comma_val_count(MIMEField *field)
+{
+  // some fields (like Date) contain commas but should not be ripped apart
+  if (!field->supports_commas()) {
+    return ((field->m_len_value == 0) ? 0 : 1);
+  } else {
+    StrList list(false);
+    int count = mime_field_value_get_comma_list(field, &list);
+    return count;
+  }
+}
+
+int
+mime_field_value_get_comma_list(MIMEField *field, StrList *list)
+{
+  const char *str;
+  int len;
+
+  str = mime_field_value_get(field, &len);
+
+  // if field doesn't support commas, don't rip apart.
+  if (!field->supports_commas())
+    list->append_string(str, len);
+  else
+    HttpCompat::parse_tok_list(list, 1, str, len, ',');
+
+  return list->count;
+}
+
+const char *
+mime_field_value_str_from_strlist(HdrHeap *heap, int *new_str_len_return, StrList *list)
+{
+  Str *cell;
+  char *new_value, *dest;
+  int i, new_value_len;
+  // This works, because all strings are from the same heap when it is "split" into the list.
+  HdrHeap::HeapGuard guard(heap, list->head->str);
+
+  new_value_len = 0;
+
+  // (1) walk the StrList cells, summing each cell's string lengths,
+  //     and add 2 bytes for each ", " between cells
+  cell = list->head;
+  for (i = 0; i < list->count; i++) {
+    new_value_len += cell->len;
+    cell = cell->next;
+  }
+  if (list->count > 1)
+    new_value_len += (2 * (list->count - 1));
+
+  // (2) allocate new heap string
+  new_value = heap->allocate_str(new_value_len);
+
+  // (3) copy string pieces into new heap string
+  dest = new_value;
+  cell = list->head;
+  for (i = 0; i < list->count; i++) {
+    if (i != 0) {
+      *dest++ = ',';
+      *dest++ = ' ';
+    }
+    memcpy(dest, cell->str, cell->len);
+    dest += cell->len;
+    cell = cell->next;
+  }
+  ink_assert(dest - new_value == new_value_len);
+
+  *new_str_len_return = new_value_len;
+  return new_value;
+}
+
+void
+mime_field_value_set_comma_val(HdrHeap *heap, MIMEHdrImpl *mh,
+                               MIMEField *field, int idx, const char *new_piece_str, int new_piece_len)
+{
+  int len;
+  Str *cell;
+  StrList list(false);
+
+  // (1) rip the value into tokens, keeping surrounding quotes, but not whitespace
+  HttpCompat::parse_tok_list(&list, 0, field->m_ptr_value, field->m_len_value, ',');
+
+  // (2) if desired index isn't valid, then don't change the field
+  if ((idx<0) || (idx>= list.count))
+    return;
+
+  // (3) mutate cell idx
+  cell = list.get_idx(idx);
+  ink_assert(cell != NULL);
+  cell->str = new_piece_str;
+  cell->len = new_piece_len;
+
+  // (4) reassemble the new string
+  field->m_ptr_value = mime_field_value_str_from_strlist(heap, &len, &list);
+  field->m_len_value = len;
+
+  // (5) keep stuff fields consistent
+  field->m_n_v_raw_printable = 0;
+  if (field->is_live() && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+}
+
+void
+mime_field_value_delete_comma_val(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, int idx)
+{
+  int len;
+  Str *cell;
+  StrList list(false);
+
+  // (1) rip the value into tokens, keeping surrounding quotes, but not whitespace
+  HttpCompat::parse_tok_list(&list, 0, field->m_ptr_value, field->m_len_value, ',');
+
+  // (2) if desired index isn't valid, then don't change the field
+  if ((idx<0) || (idx>= list.count))
+    return;
+
+  // (3) delete cell idx
+  cell = list.get_idx(idx);
+  list.detach(cell);
+
+    /**********************************************/
+  /*   Fix for bug INKqa09752                   */
+  /*                                            */
+  /*   If this is the last value                */
+  /*   in the field, set the m_ptr_val to NULL  */
+    /**********************************************/
+
+  if (list.count == 0) {
+    field->m_ptr_value = 0;
+    field->m_len_value = 0;
+  } else {
+      /************************************/
+    /*   End Fix for bug INKqa09752     */
+      /************************************/
+
+
+    // (4) reassemble the new string
+    field->m_ptr_value = mime_field_value_str_from_strlist(heap, &len, &list);
+    field->m_len_value = len;
+  }
+
+  // (5) keep stuff fields consistent
+  field->m_n_v_raw_printable = 0;
+  if (field->is_live() && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+}
+
+void
+mime_field_value_insert_comma_val(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, int idx,
+                                  const char *new_piece_str, int new_piece_len)
+{
+  int len;
+  Str *cell, *prev;
+  StrList list(false);
+
+  // (1) rip the value into tokens, keeping surrounding quotes, but not whitespace
+  HttpCompat::parse_tok_list(&list, 0, field->m_ptr_value, field->m_len_value, ',');
+
+  // (2) if desired index isn't valid, then don't change the field
+  if (idx < 0)
+    idx = list.count;
+  if (idx > list.count)
+    return;
+
+  // (3) create a new cell
+  cell = list.new_cell(new_piece_str, new_piece_len);
+
+  // (4) patch new cell into list at the right place
+  if (idx == 0) {
+    list.prepend(cell);
+  } else {
+    prev = list.get_idx(idx - 1);
+    list.add_after(prev, cell);
+  }
+
+  // (5) reassemble the new string
+  field->m_ptr_value = mime_field_value_str_from_strlist(heap, &len, &list);
+  field->m_len_value = len;
+
+  // (6) keep stuff fields consistent
+  field->m_n_v_raw_printable = 0;
+  if (field->is_live() && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+}
+
+void
+mime_field_value_extend_comma_val(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, int idx,
+                                  const char *new_piece_str, int new_piece_len)
+{
+  Str *cell;
+  StrList list(false);
+  int trimmed, len;
+  size_t extended_len;
+  char *dest, *temp_ptr, temp_buf[128];
+
+  // (1) rip the value into tokens, keeping surrounding quotes, but not whitespace
+  HttpCompat::parse_tok_list(&list, 0, field->m_ptr_value, field->m_len_value, ',');
+
+  // (2) if desired index isn't valid, then don't change the field
+  if ((idx<0) || (idx>= list.count))
+    return;
+
+  // (3) get the cell we want to modify
+  cell = list.get_idx(idx);
+  ink_assert(cell != NULL);
+
+  // (4) trim quotes if any
+  if ((cell->len >= 2) && (cell->str[0] == '\"') && (cell->str[cell->len - 1] == '\"')) {
+    trimmed = 1;
+    cell->str += 1;
+    cell->len -= 2;
+  } else {
+    trimmed = 0;
+  }
+
+  // (5) compute length of extended token
+  extended_len = cell->len + new_piece_len + (trimmed ? 2 : 0);
+
+  // (6) allocate temporary space to construct new value
+  if (extended_len <= sizeof(temp_buf))
+    temp_ptr = temp_buf;
+  else
+    temp_ptr = (char *)ats_malloc(extended_len);
+
+  // (7) construct new extended token
+  dest = temp_ptr;
+  if (trimmed)
+    *dest++ = '\"';
+  memcpy(dest, cell->str, cell->len);
+  dest += cell->len;
+  memcpy(dest, new_piece_str, new_piece_len);
+  dest += new_piece_len;
+  if (trimmed)
+    *dest++ = '\"';
+  ink_assert((size_t) (dest - temp_ptr) == extended_len);
+
+  // (8) assign the new token to the cell
+  cell->str = temp_ptr;
+  cell->len = extended_len;
+
+  // (9) reassemble the new string
+  field->m_ptr_value = mime_field_value_str_from_strlist(heap, &len, &list);
+  field->m_len_value = len;
+
+  // (10) keep stuff fields consistent
+  field->m_n_v_raw_printable = 0;
+  if (field->is_live() && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+
+  // (11) free up any temporary storage
+  if (extended_len > sizeof(temp_buf))
+    ats_free(temp_ptr);
+}
+
+void
+mime_field_value_set(HdrHeap *heap,
+                     MIMEHdrImpl *mh, MIMEField *field, const char *value, int length, bool must_copy_string)
+{
+
+  heap->free_string(field->m_ptr_value, field->m_len_value);
+
+  if (must_copy_string && value)
+    field->m_ptr_value = heap->duplicate_str(value, length);
+  else
+    field->m_ptr_value = value;
+
+  field->m_len_value = length;
+  field->m_n_v_raw_printable = 0;
+
+  // Now keep the cooked cache consistent
+  if (field->is_live() && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+}
+
+void
+mime_field_value_set_int(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, int32_t value)
+{
+  char buf[16];
+  int len = mime_format_int(buf, value, sizeof(buf));
+  mime_field_value_set(heap, mh, field, buf, len, 1);
+}
+
+void
+mime_field_value_set_uint(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, uint32_t value)
+{
+  char buf[16];
+  int len = mime_format_uint(buf, value, sizeof(buf));
+  mime_field_value_set(heap, mh, field, buf, len, 1);
+}
+
+void
+mime_field_value_set_int64(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, int64_t value)
+{
+  char buf[20];
+  int len = mime_format_int64(buf, value, sizeof(buf));
+  mime_field_value_set(heap, mh, field, buf, len, 1);
+}
+
+void
+mime_field_value_set_date(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, time_t value)
+{
+  char buf[33];
+  int len = mime_format_date(buf, value);
+  mime_field_value_set(heap, mh, field, buf, len, 1);
+}
+
+void
+mime_field_name_value_set(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, int16_t name_wks_idx_or_neg1,
+                          const char *name, int name_length, const char *value, int value_length, int n_v_raw_printable,
+                          int n_v_raw_length, bool must_copy_strings)
+{
+  unsigned int n_v_raw_pad = n_v_raw_length - (name_length + value_length);
+
+  ink_assert(field->m_readiness == MIME_FIELD_SLOT_READINESS_DETACHED);
+
+  if (must_copy_strings) {
+    mime_field_name_set(heap, mh, field, name_wks_idx_or_neg1, name, name_length, 1);
+    mime_field_value_set(heap, mh, field, value, value_length, 1);
+  } else {
+    field->m_wks_idx = name_wks_idx_or_neg1;
+    field->m_ptr_name = name;
+    field->m_ptr_value = value;
+    field->m_len_name = name_length;
+    field->m_len_value = value_length;
+    if (n_v_raw_printable && (n_v_raw_pad <= 7)) {
+      field->m_n_v_raw_printable = n_v_raw_printable;
+      field->m_n_v_raw_printable_pad = n_v_raw_pad;
+    } else {
+      field->m_n_v_raw_printable = 0;
+    }
+
+    // Now keep the cooked cache consistent
+    if ((name_wks_idx_or_neg1 == MIME_WKSIDX_CACHE_CONTROL) || (name_wks_idx_or_neg1 == MIME_WKSIDX_PRAGMA)) {
+      field->m_flags |= MIME_FIELD_SLOT_FLAGS_COOKED;
+    }
+    if (field->is_live() && field->is_cooked())
+      mh->recompute_cooked_stuff(field);
+  }
+}
+
+void
+mime_field_value_append(HdrHeap *heap, MIMEHdrImpl *mh, MIMEField *field, const char *value, int length,
+                        bool prepend_comma, const char separator)
+{
+  int new_length = field->m_len_value + length;
+  if (prepend_comma && field->m_len_value)
+    new_length += 2;
+
+  // Start by trying expand the string we already  have
+  char *new_str = heap->expand_str(field->m_ptr_value, field->m_len_value, new_length);
+
+  if (new_str == NULL) {
+    // Expansion failed.  Create a new string and copy over the value contents
+    new_str = heap->allocate_str(new_length);
+    memcpy(new_str, field->m_ptr_value, field->m_len_value);
+  }
+
+  char *ptr = new_str + field->m_len_value;
+  if (prepend_comma && field->m_len_value) {
+    *ptr++ = separator;
+    *ptr++ = ' ';
+  }
+
+  memcpy(ptr, value, length);
+
+  field->m_ptr_value = new_str;
+  field->m_len_value = new_length;
+  field->m_n_v_raw_printable = 0;
+
+  // Now keep the cooked cache consistent
+  if (field->is_live() && field->is_cooked())
+    mh->recompute_cooked_stuff(field);
+}
+
+MIMEField* MIMEHdr::get_host_port_values(
+  char const** host_ptr, ///< Pointer to host.
+  int* host_len, ///< Length of host.
+  char const** port_ptr, ///< Pointer to port.
+  int* port_len
+  )
+{
+  MIMEField* field = this->field_find(MIME_FIELD_HOST, MIME_LEN_HOST);
+  if (host_ptr)
+    *host_ptr = 0;
+  if (host_len)
+    *host_len = 0;
+  if (port_ptr)
+    *port_ptr = 0;
+  if (port_len)
+    *port_len = 0;
+
+  if (field) {
+    ts::ConstBuffer b(field->m_ptr_value, field->m_len_value);
+    ts::ConstBuffer host(0), port(0);
+
+    if (b) {
+      char const* x;
+
+      if ('[' == *b) {
+        x = static_cast<char const*>(memchr(b._ptr, ']', b._size));
+        if (x && b.contains(x+1) && ':' == x[1]) {
+          host = b.splitOn(x+1);
+          port = b;
+        } else {
+          host = b;
+        }
+      } else {
+        x = static_cast<char const*>(memchr(b._ptr, ':', b._size));
+        if (x) {
+          host = b.splitOn(x);
+          port = b;
+        } else {
+          host = b;
+        }
+      }
+      
+      if (host) {
+        if (host_ptr) *host_ptr = host._ptr;
+        if (host_len) *host_len = static_cast<int>(host._size);
+      }
+      if (port) {
+        if (port_ptr) *port_ptr = port._ptr;
+        if (port_len) *port_len = static_cast<int>(port._size);
+      }
+    } else {
+      field = 0; // no value in field, signal fail.
+    }
+  }
+  return field;
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                          P A R S E R                                *
+ *                                                                     *
+ ***********************************************************************/
+void
+_mime_scanner_init(MIMEScanner *scanner)
+{
+  scanner->m_line = NULL;
+  scanner->m_line_size = 0;
+  scanner->m_line_length = 0;
+  scanner->m_state = MIME_PARSE_BEFORE;
+
+}
+
+//////////////////////////////////////////////////////
+// init     first time structure setup              //
+// clear    resets an already-initialized structure //
+//////////////////////////////////////////////////////
+void
+mime_scanner_init(MIMEScanner *scanner)
+{
+  _mime_scanner_init(scanner);
+}
+
+// clear is to reset an already initialized structure
+void
+mime_scanner_clear(MIMEScanner *scanner)
+{
+  ats_free(scanner->m_line);
+  _mime_scanner_init(scanner);
+}
+
+void
+mime_scanner_append(MIMEScanner *scanner, const char *data, int data_size)
+{
+  int free_size = scanner->m_line_size - scanner->m_line_length;
+
+  //////////////////////////////////////////////////////
+  // if not enough space, allocate or grow the buffer //
+  //////////////////////////////////////////////////////
+  if (data_size > free_size) {    // need to allocate/grow the buffer
+    if (scanner->m_line_size == 0)      // buffer should be at least 128 bytes
+      scanner->m_line_size = 128;
+
+    while (free_size < data_size) {      // grow buffer by powers of 2
+      scanner->m_line_size *= 2;
+      free_size = scanner->m_line_size - scanner->m_line_length;
+    }
+
+    if (scanner->m_line == NULL) {       // if no buffer yet, allocate one
+      scanner->m_line = (char *)ats_malloc(scanner->m_line_size);
+    } else {
+      scanner->m_line = (char *)ats_realloc(scanner->m_line, scanner->m_line_size);
+    }
+  }
+  ////////////////////////////////////////////////
+  // append new data onto the end of the buffer //
+  ////////////////////////////////////////////////
+
+  memcpy(&(scanner->m_line[scanner->m_line_length]), data, data_size);
+  scanner->m_line_length += data_size;
+}
+
+MIMEParseResult
+mime_scanner_get(MIMEScanner *S,
+                 const char **raw_input_s,
+                 const char *raw_input_e,
+                 const char **output_s,
+                 const char **output_e,
+                 bool *output_shares_raw_input,
+                 bool raw_input_eof, ///< All data has been received for this header.
+                 int raw_input_scan_type)
+{
+  const char *raw_input_c, *lf_ptr;
+  MIMEParseResult zret = PARSE_CONT;
+  // Need this for handling dangling CR.
+  static char const RAW_CR = ParseRules::CHAR_CR;
+
+  ink_assert((raw_input_s != NULL) && (*raw_input_s != NULL));
+  ink_assert(raw_input_e != NULL);
+
+  raw_input_c = *raw_input_s;
+
+  while (PARSE_CONT == zret && raw_input_c < raw_input_e) {
+    ptrdiff_t runway = raw_input_e - raw_input_c; // remaining input.
+    switch (S->m_state) {
+    case MIME_PARSE_BEFORE: // waiting to find a field.
+      if (ParseRules::is_cr(*raw_input_c)) {
+        ++raw_input_c;
+        if (runway >= 2 && ParseRules::is_lf(*raw_input_c)) {
+          // optimize a bit - this happens >99% of the time after a CR.
+          ++raw_input_c;
+          zret = PARSE_DONE;
+        } else {
+          S->m_state = MIME_PARSE_FOUND_CR;
+        }
+      } else if (ParseRules::is_lf(*raw_input_c)) {
+	++raw_input_c;
+        zret = PARSE_DONE; // Required by regression test.
+      } else {
+        // consume this character in the next state.
+        S->m_state = MIME_PARSE_INSIDE;
+      }
+      break;
+    case MIME_PARSE_FOUND_CR:
+      // Looking for a field and found a CR, which should mean terminating
+      // the header. Note that we've left the CR in the input so we have
+      // to skip over it.
+      if (ParseRules::is_lf(*raw_input_c)) {
+        // Header terminated.
+        ++raw_input_c;
+        zret = PARSE_DONE;
+      } else {
+        // This really should be an error (spec doesn't permit lone CR)
+        // but the regression tests require it.
+        mime_scanner_append(S, &RAW_CR, 1);
+        S->m_state = MIME_PARSE_INSIDE;
+      }
+      break;
+    case MIME_PARSE_INSIDE:
+      lf_ptr = static_cast<char const*>(memchr(raw_input_c, ParseRules::CHAR_LF, runway));
+      if (lf_ptr) {
+        raw_input_c = lf_ptr + 1;
+        if (MIME_SCANNER_TYPE_LINE == raw_input_scan_type) {
+          zret = PARSE_OK;
+          S->m_state = MIME_PARSE_BEFORE;
+        } else {
+          S->m_state = MIME_PARSE_AFTER;
+        }
+      } else {
+        raw_input_c = raw_input_e; // grab all that's available.
+      }
+      break;
+    case MIME_PARSE_AFTER:
+      // After a LF. Might be the end or a continuation.
+      if (ParseRules::is_ws(*raw_input_c)) {
+        S->m_state = MIME_PARSE_INSIDE; // back inside the field.
+      } else {
+        S->m_state = MIME_PARSE_BEFORE; // field terminated.
+        zret = PARSE_OK;
+      }
+      break;
+    }
+  }
+
+  ptrdiff_t data_size = raw_input_c - *raw_input_s;
+
+  if (PARSE_CONT == zret) {
+    // data ran out before we got a clear final result.
+    // There a number of things we need to check and possibly adjust
+    // that result. It's less complex to do this cleanup than handle
+    // in the parser state machine.
+    if (raw_input_eof) {
+      // Should never return PARSE_CONT if we've hit EOF.
+      if (0 == data_size) {
+        // all input previously consumed. If we're between fields, that's cool.
+        if (MIME_PARSE_INSIDE != S->m_state) {
+          S->m_state = MIME_PARSE_BEFORE; // probably not needed...
+          zret = PARSE_DONE;
+        } else {
+          zret = PARSE_ERROR; // unterminated field.
+        }
+      } else if (MIME_PARSE_AFTER == S->m_state) {
+        // Special case it seems - need to accept the final field
+        // even if there's no header terminating CR LF. We check for
+        // absolute end of input because otherwise this might be
+        // a multiline field where we haven't seen the next leading space.
+        S->m_state = MIME_PARSE_BEFORE;
+        zret = PARSE_OK;
+      } else {
+        // Partial input, no field / line CR LF
+        zret = PARSE_ERROR; // Unterminated field.
+      }
+    } else if (data_size) {
+      // Inside a field but more data is expected. Save what we've got.
+      mime_scanner_append(S, *raw_input_s, data_size);
+      data_size = 0; // Don't append again.
+    }
+  } 
+
+  if (data_size && S->m_line_length) {
+    // If we're already accumulating, continue to do so if we have data.
+    mime_scanner_append(S, *raw_input_s, data_size);
+  }
+
+  // adjust out arguments.
+  if (PARSE_CONT != zret) {
+    if (0 != S->m_line_length) {
+      *output_s = S->m_line;
+      *output_e = *output_s + S->m_line_length;
+      *output_shares_raw_input = false;
+      S->m_line_length = 0;
+    } else {
+      *output_s = *raw_input_s;
+      *output_e = raw_input_c;
+      *output_shares_raw_input = true;
+    }
+  }
+  
+  *raw_input_s = raw_input_c; // mark input consumed.
+  return zret;
+}
+
+void
+_mime_parser_init(MIMEParser *parser)
+{
+  parser->m_field = 0;
+  parser->m_field_flags = 0;
+  parser->m_value = -1;
+}
+//////////////////////////////////////////////////////
+// init     first time structure setup              //
+// clear    resets an already-initialized structure //
+//////////////////////////////////////////////////////
+void
+mime_parser_init(MIMEParser *parser)
+{
+  mime_scanner_init(&parser->m_scanner);
+  _mime_parser_init(parser);
+}
+
+void
+mime_parser_clear(MIMEParser *parser)
+{
+  mime_scanner_clear(&parser->m_scanner);
+  _mime_parser_init(parser);
+}
+
+MIMEParseResult
+mime_parser_parse(MIMEParser *parser, HdrHeap *heap, MIMEHdrImpl *mh, const char **real_s, const char *real_e,
+                  bool must_copy_strings, bool eof)
+{
+  MIMEParseResult err;
+  bool line_is_real;
+  const char *colon;
+  const char *line_c;
+  const char *line_s;
+  const char *line_e;
+  const char *field_name_first;
+  const char *field_name_last;
+  const char *field_value_first;
+  const char *field_value_last;
+  const char *field_line_first;
+  const char *field_line_last;
+  int field_name_length, field_value_length;
+
+  MIMEScanner *scanner = &parser->m_scanner;
+
+  while (1) {
+    ////////////////////////////////////////////////////////////////////////////
+    // get a name:value line, with all continuation lines glued into one line //
+    ////////////////////////////////////////////////////////////////////////////
+
+    err = mime_scanner_get(scanner, real_s, real_e, &line_s, &line_e, &line_is_real, eof, MIME_SCANNER_TYPE_FIELD);
+    if (err != PARSE_OK)
+      return err;
+
+    line_c = line_s;
+
+    //////////////////////////////////////////////////
+    // if got a LF or CR on its own, end the header //
+    //////////////////////////////////////////////////
+
+    if ((line_e - line_c >= 2) && (line_c[0] == ParseRules::CHAR_CR) && (line_c[1] == ParseRules::CHAR_LF))
+      return PARSE_DONE;
+
+    if ((line_e - line_c >= 1) && (line_c[0] == ParseRules::CHAR_LF))
+      return PARSE_DONE;
+
+    /////////////////////////////////////////////
+    // find pointers into the name:value field //
+    /////////////////////////////////////////////
+
+    field_line_first = line_c;
+    field_line_last = line_e - 1;
+
+    // find name first
+    field_name_first = line_c;
+        /**
+	 * Fix for INKqa09141. The is_token function fails for '@' character.
+	 * Header names starting with '@' signs are valid headers. Hence we
+	 * have to add one more check to see if the first parameter is '@'
+	 * character then, the header name is valid.
+	 **/
+    if ((!ParseRules::is_token(*field_name_first)) && (*field_name_first != '@'))
+      continue;                 // toss away garbage line
+
+    // find name last
+    colon = (char *) memchr(line_c, ':', (line_e - line_c));
+    if (!colon)
+      continue;                 // toss away garbage line
+    field_name_last = colon - 1;
+    while ((field_name_last >= field_name_first) && is_ws(*field_name_last))
+      --field_name_last;
+
+    // find value first
+    field_value_first = colon + 1;
+    while ((field_value_first < line_e) && is_ws(*field_value_first))
+      ++field_value_first;
+
+    // find_value_last
+    field_value_last = line_e - 1;
+    while ((field_value_last >= field_value_first) && ParseRules::is_wslfcr(*field_value_last))
+      --field_value_last;
+
+    field_name_length = (int) (field_name_last - field_name_first + 1);
+    field_value_length = (int) (field_value_last - field_value_first + 1);
+
+    // Make sure the name or value is not longer than 64K
+    if (field_name_length >= UINT16_MAX || field_value_length >= UINT16_MAX)
+      return PARSE_ERROR;
+
+    int total_line_length = (int) (field_line_last - field_line_first + 1);
+
+    //////////////////////////////////////////////////////////////////////
+    // if we can't leave the name & value in the real buffer, copy them //
+    //////////////////////////////////////////////////////////////////////
+
+    if (must_copy_strings || (!line_is_real)) {
+      int length = total_line_length;
+      char *dup = heap->duplicate_str(field_name_first, length);
+      intptr_t delta = dup - field_name_first;
+
+      field_name_first += delta;
+      field_name_last += delta;
+      field_value_first += delta;
+      field_value_last += delta;
+      field_line_first += delta;
+      field_line_last += delta;
+    }
+    ///////////////////////
+    // tokenize the name //
+    ///////////////////////
+
+    int field_name_wks_idx = hdrtoken_tokenize(field_name_first, field_name_length);
+
+    ///////////////////////////////////////////
+    // build and insert the new field object //
+    ///////////////////////////////////////////
+
+
+    MIMEField *field = mime_field_create(heap, mh);
+    mime_field_name_value_set(heap, mh, field,
+                              field_name_wks_idx,
+                              field_name_first, field_name_length,
+                              field_value_first, field_value_length, true, total_line_length, 0);
+    mime_hdr_field_attach(mh, field, 1, NULL);
+  }
+}
+
+void
+mime_hdr_describe(HdrHeapObjImpl *raw, bool recurse)
+{
+  MIMEFieldBlockImpl *fblock;
+  MIMEHdrImpl *obj = (MIMEHdrImpl *) raw;
+
+  Debug("http", "\n\t[PBITS: 0x%08X%08X, SLACC: 0x%04X%04X%04X%04X, HEADBLK: %p, TAILBLK: %p]\n",
+        (uint32_t) ((obj->m_presence_bits >> 32) & (TOK_64_CONST(0xFFFFFFFF))),
+        (uint32_t) ((obj->m_presence_bits >> 0) & (TOK_64_CONST(0xFFFFFFFF))),
+        obj->m_slot_accelerators[0], obj->m_slot_accelerators[1],
+        obj->m_slot_accelerators[2], obj->m_slot_accelerators[3], &(obj->m_first_fblock), obj->m_fblock_list_tail);
+
+  Debug("http", "\t[CBITS: 0x%08X, T_MAXAGE: %d, T_SMAXAGE: %d, T_MAXSTALE: %d, T_MINFRESH: %d, PNO$: %d]\n",
+        obj->m_cooked_stuff.m_cache_control.m_mask,
+        obj->m_cooked_stuff.m_cache_control.m_secs_max_age,
+        obj->m_cooked_stuff.m_cache_control.m_secs_s_maxage,
+        obj->m_cooked_stuff.m_cache_control.m_secs_max_stale,
+        obj->m_cooked_stuff.m_cache_control.m_secs_min_fresh, obj->m_cooked_stuff.m_pragma.m_no_cache);
+  for (fblock = &(obj->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    if (recurse || (fblock == &(obj->m_first_fblock)))
+      obj_describe((HdrHeapObjImpl *) fblock, recurse);
+  }
+}
+
+void
+mime_field_block_describe(HdrHeapObjImpl *raw, bool /* recurse ATS_UNUSED */)
+{
+  unsigned int i;
+  static const char *readiness_names[] = { "EMPTY", "DETACHED", "LIVE", "DELETED" };
+
+  MIMEFieldBlockImpl *obj = (MIMEFieldBlockImpl *) raw;
+
+  Debug("http", "[FREETOP: %d, NEXTBLK: %p]\n", obj->m_freetop, obj->m_next);
+
+  for (i = 0; i < obj->m_freetop; i++) {
+    MIMEField *f = &(obj->m_field_slots[i]);
+    Debug("http", "\tSLOT #%2d (%p), %-8s", i, f, readiness_names[f->m_readiness]);
+
+    switch (f->m_readiness) {
+    case MIME_FIELD_SLOT_READINESS_EMPTY:
+      break;
+    case MIME_FIELD_SLOT_READINESS_DETACHED:
+    case MIME_FIELD_SLOT_READINESS_LIVE:
+    case MIME_FIELD_SLOT_READINESS_DELETED:
+      Debug("http", "[N: \"%.*s\", N_LEN: %d, N_IDX: %d, ",
+            f->m_len_name, (f->m_ptr_name ? f->m_ptr_name : "NULL"), f->m_len_name, f->m_wks_idx);
+      Debug("http", "V: \"%.*s\", V_LEN: %d, ",
+            f->m_len_value, (f->m_ptr_value ? f->m_ptr_value : "NULL"), f->m_len_value);
+      Debug("http", "NEXTDUP: %p, RAW: %d, RAWLEN: %d, F: %d]",
+            f->m_next_dup, f->m_n_v_raw_printable,
+            f->m_len_name + f->m_len_value + f->m_n_v_raw_printable_pad, f->m_flags);
+      break;
+    }
+    Debug("http", "\n");
+  }
+}
+
+int
+mime_hdr_print(HdrHeap * /* heap ATS_UNUSED */, MIMEHdrImpl *mh, char *buf_start, int buf_length, int *buf_index_inout,
+               int *buf_chars_to_skip_inout)
+{
+  MIMEFieldBlockImpl *fblock;
+  MIMEField *field;
+  uint32_t index;
+
+#define SIMPLE_MIME_HDR_PRINT
+#ifdef SIMPLE_MIME_HDR_PRINT
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    for (index = 0; index < fblock->m_freetop; index++) {
+      field = &(fblock->m_field_slots[index]);
+      if (field->is_live()) {
+        if (!mime_field_print(field, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout))
+          return 0;
+      }
+    }
+  }
+#else
+  // FIX: if not raw_printable, need to print with mime_field_print,
+  //      not mime_mem_print
+  for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next) {
+    const char *contig_start = NULL;
+    int this_length, contig_length = 0;
+    for (index = 0; index < fblock->m_freetop; index++) {
+      field = &(fblock->m_field_slots[index]);
+      this_length = field->m_len_name + field->m_len_value + field->m_n_v_raw_printable_pad;
+      if (field->is_live()) {
+        if ((field->m_ptr_name == contig_start + contig_length)
+            && field->m_n_v_raw_printable
+            && ((buf_index_inout == NULL) || (contig_length + this_length <= buf_length - *buf_index_inout))) {
+
+          contig_length += this_length;
+        } else {
+          if (contig_length > 0) {
+            if (!mime_mem_print(contig_start, contig_length, buf_start, buf_length,
+                                buf_index_inout, buf_chars_to_skip_inout))
+              return 0;
+          }
+          contig_start = field->m_ptr_name;
+          contig_length = this_length;
+        }
+      }
+    }
+
+    if (contig_length > 0) {
+      if (!mime_mem_print(contig_start, contig_length, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout))
+        return 0;
+    }
+  }
+#endif
+
+  if (!mime_mem_print("\r\n", 2, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout)) {
+    return 0;
+  }
+
+  return 1;
+}
+
+int
+mime_mem_print(const char *src_d, int src_l, char *buf_start, int buf_length, int *buf_index_inout,
+               int *buf_chars_to_skip_inout)
+{
+  int copy_l;
+
+  if (buf_start == NULL) {      // this case should only be used by test_header
+    ink_release_assert(buf_index_inout == NULL);
+    ink_release_assert(buf_chars_to_skip_inout == NULL);
+    while (src_l--)
+      putchar(*src_d++);
+    return 1;
+  }
+
+  ink_assert(buf_start != NULL);
+  ink_assert(src_d != NULL);
+
+  if (*buf_chars_to_skip_inout > 0) {
+    if (*buf_chars_to_skip_inout >= src_l) {
+      *buf_chars_to_skip_inout -= src_l;
+      return 1;
+    } else {
+      src_l -= *buf_chars_to_skip_inout;
+      src_d += *buf_chars_to_skip_inout;
+      *buf_chars_to_skip_inout = 0;
+    }
+  }
+
+  copy_l = min(buf_length - *buf_index_inout, src_l);
+  if (copy_l > 0) {
+    memcpy(buf_start + *buf_index_inout, src_d, copy_l);
+    *buf_index_inout += copy_l;
+  }
+  return (src_l == copy_l);
+}
+
+int
+mime_field_print(MIMEField *field, char *buf_start, int buf_length, int *buf_index_inout, int *buf_chars_to_skip_inout)
+{
+#define TRY(x)  if (!x) return 0
+
+  int total_len;
+
+  // Don't print names that begin with an '@'.
+  if (field->m_ptr_name[0] == '@') {
+    return 1;
+  }
+
+  if (field->m_n_v_raw_printable) {
+
+    total_len = field->m_len_name + field->m_len_value + field->m_n_v_raw_printable_pad;
+
+    if ((buf_start != NULL) && (*buf_chars_to_skip_inout == 0) && (total_len <= (buf_length - *buf_index_inout))) {
+
+      buf_start += *buf_index_inout;
+      memcpy(buf_start, field->m_ptr_name, total_len);
+      *buf_index_inout += total_len;
+
+    } else {
+      TRY(mime_mem_print(field->m_ptr_name, total_len, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    }
+  } else {
+    total_len = field->m_len_name + field->m_len_value + 2 + 2;
+
+    // try to handle on fast path
+
+    if ((buf_start != NULL) && (*buf_chars_to_skip_inout == 0) && (total_len <= (buf_length - *buf_index_inout))) {
+      buf_start += *buf_index_inout;
+
+      memcpy(buf_start, field->m_ptr_name, field->m_len_name);
+      buf_start += field->m_len_name;
+
+      buf_start[0] = ':';
+      buf_start[1] = ' ';
+      buf_start += 2;
+
+      memcpy(buf_start, field->m_ptr_value, field->m_len_value);
+      buf_start += field->m_len_value;
+
+      buf_start[0] = '\r';
+      buf_start[1] = '\n';
+
+      *buf_index_inout += total_len;
+    } else {
+      TRY(mime_mem_print(field->m_ptr_name, field->m_len_name, buf_start, buf_length, buf_index_inout,
+                         buf_chars_to_skip_inout));
+      TRY(mime_mem_print(": ", 2, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+      TRY(mime_mem_print(field->m_ptr_value, field->m_len_value, buf_start, buf_length, buf_index_inout,
+                         buf_chars_to_skip_inout));
+      TRY(mime_mem_print("\r\n", 2, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    }
+  }
+
+  return 1;
+
+#undef TRY
+}
+
+const char *
+mime_str_u16_set(HdrHeap *heap, const char *s_str, int s_len, const char **d_str, uint16_t *d_len, bool must_copy)
+{
+  ink_assert(s_len >= 0 && s_len < UINT16_MAX);
+  // INKqa08287 - keep track of free string space.
+  //  INVARIENT: passed in result pointers must be to
+  //    either NULL or be valid ptr for a string already
+  //    the string heaps
+  heap->free_string(*d_str, *d_len);
+
+  if (must_copy && s_str) {
+    s_str = heap->duplicate_str(s_str, s_len);
+  }
+  *d_str = s_str;
+  *d_len = s_len;
+  return s_str;
+}
+
+int
+mime_field_length_get(MIMEField *field)
+{
+  if (field->m_n_v_raw_printable) {
+    return (field->m_len_name + field->m_len_value + field->m_n_v_raw_printable_pad);
+  } else {
+    return (field->m_len_name + field->m_len_value + 4);        // add ": \r\n"
+  }
+}
+
+int
+mime_format_int(char *buf, int32_t val, size_t buf_len)
+{
+  return ink_fast_itoa(val, buf, buf_len);
+}
+
+int
+mime_format_uint(char *buf, uint32_t val, size_t buf_len)
+{
+  return ink_fast_uitoa(val, buf, buf_len);
+}
+
+int
+mime_format_int64(char *buf, int64_t val, size_t buf_len)
+{
+  return ink_fast_ltoa(val, buf, buf_len);
+}
+
+void
+mime_days_since_epoch_to_mdy_slowcase(unsigned int days_since_jan_1_1970, int *m_return, int *d_return, int *y_return)
+{
+  static const int DAYS_OFFSET = 25508;
+
+  static const char months[] = {
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5,
+    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6,
+    6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+    6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+    7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+    8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+    9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+    10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+    11, 11, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
+  };
+
+  static const int days[12] = {
+    305, 336, -1, 30, 60, 91, 121, 152, 183, 213, 244, 274
+  };
+
+  int mday, year, month, d, dp;
+
+  mday = days_since_jan_1_1970;
+
+  /* guess the year and refine the guess */
+  year = mday / 365 + 69;
+  d = dp = (year * 365) + (year / 4) - (year / 100) + (year / 100 + 3) / 4 - DAYS_OFFSET - 1;
+
+  while (dp < mday) {
+    d = dp;
+    year += 1;
+    dp = (year * 365) + (year / 4) - (year / 100) + (year / 100 + 3) / 4 - DAYS_OFFSET - 1;
+  }
+
+  /* convert the days */
+  d = mday - d;
+  if ((d<0) || (d> 366))
+    ink_assert(!"bad date");
+  else {
+    month = months[d];
+    if (month > 1)
+      year -= 1;
+
+    mday = d - days[month] - 1;
+    year += 1900;
+
+    *m_return = month;
+    *d_return = mday;
+    *y_return = year;
+  }
+}
+
+void
+mime_days_since_epoch_to_mdy(unsigned int days_since_jan_1_1970, int *m_return, int *d_return, int *y_return)
+{
+  ink_assert(_days_to_mdy_fast_lookup_table != NULL);
+
+  /////////////////////////////////////////////////////////////
+  // if we have a fast lookup entry for this date, return it //
+  /////////////////////////////////////////////////////////////
+
+  if ((days_since_jan_1_1970 >= _days_to_mdy_fast_lookup_table_first_day) &&
+      (days_since_jan_1_1970 <= _days_to_mdy_fast_lookup_table_last_day)) {
+    ////////////////////////////////////////////////////////////////
+    // to speed up the days_since_epoch to m/d/y conversion, we   //
+    // use a pre-computed lookup table to support the common case //
+    // of dates that are +/- one year from today.                 //
+    ////////////////////////////////////////////////////////////////
+
+    int i = days_since_jan_1_1970 - _days_to_mdy_fast_lookup_table_first_day;
+    *m_return = _days_to_mdy_fast_lookup_table[i].m;
+    *d_return = _days_to_mdy_fast_lookup_table[i].d;
+    *y_return = _days_to_mdy_fast_lookup_table[i].y;
+    return;
+  }
+  ////////////////////////////////////
+  // otherwise, return the slow way //
+  ////////////////////////////////////
+
+  mime_days_since_epoch_to_mdy_slowcase(days_since_jan_1_1970, m_return, d_return, y_return);
+}
+
+int
+mime_format_date(char *buffer, time_t value)
+{
+  // must be 3 characters!
+  static const char *daystrs[] = {
+    "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+  };
+
+  // must be 3 characters!
+  static const char *monthstrs[] = {
+    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+  };
+
+  static const char *digitstrs[] = {
+    "00", "01", "02", "03", "04", "05", "06", "07", "08", "09",
+    "10", "11", "12", "13", "14", "15", "16", "17", "18", "19",
+    "20", "21", "22", "23", "24", "25", "26", "27", "28", "29",
+    "30", "31", "32", "33", "34", "35", "36", "37", "38", "39",
+    "40", "41", "42", "43", "44", "45", "46", "47", "48", "49",
+    "50", "51", "52", "53", "54", "55", "56", "57", "58", "59",
+    "60", "61", "62", "63", "64", "65", "66", "67", "68", "69",
+    "70", "71", "72", "73", "74", "75", "76", "77", "78", "79",
+    "80", "81", "82", "83", "84", "85", "86", "87", "88", "89",
+    "90", "91", "92", "93", "94", "95", "96", "97", "98", "99",
+  };
+
+  char *buf;
+  int sec, min, hour, wday, mday=0, year=0, month=0;
+
+  buf = buffer;
+
+  sec = (int) (value % 60);
+  value /= 60;
+  min = (int) (value % 60);
+  value /= 60;
+  hour = (int) (value % 24);
+  value /= 24;
+
+  /* Jan 1, 1970 was a Thursday */
+  wday = (int) ((4 + value) % 7);
+
+  /* value is days since Jan 1, 1970 */
+#if MIME_FORMAT_DATE_USE_LOOKUP_TABLE
+  mime_days_since_epoch_to_mdy(value, &month, &mday, &year);
+#else
+  mime_days_since_epoch_to_mdy_slowcase(value, &month, &mday, &year);
+#endif
+
+  /* arrange the date in the buffer */
+  ink_assert((mday >= 0) && (mday <= 99));
+  ink_assert((hour >= 0) && (hour <= 99));
+  ink_assert((min >= 0) && (min <= 99));
+  ink_assert((sec >= 0) && (sec <= 99));
+
+  /* the day string */
+  const char *three_char_day = daystrs[wday];
+  buf[0] = three_char_day[0];
+  buf[1] = three_char_day[1];
+  buf[2] = three_char_day[2];
+  buf += 3;
+
+  buf[0] = ',';
+  buf[1] = ' ';
+  buf += 2;
+
+  /* the day of month */
+  buf[0] = digitstrs[mday][0];
+  buf[1] = digitstrs[mday][1];
+  buf[2] = ' ';
+  buf += 3;
+
+  /* the month string */
+  const char *three_char_month = monthstrs[month];
+  buf[0] = three_char_month[0];
+  buf[1] = three_char_month[1];
+  buf[2] = three_char_month[2];
+  buf += 3;
+
+  /* the year */
+  buf[0] = ' ';
+
+  if ((year >= 2000) && (year <= 2009)) {
+    buf[1] = '2';
+    buf[2] = '0';
+    buf[3] = '0';
+    buf[4] = (year - 2000) + '0';
+  } else if ((year >= 1990) && (year <= 1999)) {
+    buf[1] = '1';
+    buf[2] = '9';
+    buf[3] = '9';
+    buf[4] = (year - 1990) + '0';
+  } else {
+    buf[4] = (year % 10) + '0';
+    year /= 10;
+    buf[3] = (year % 10) + '0';
+    year /= 10;
+    buf[2] = (year % 10) + '0';
+    year /= 10;
+    buf[1] = (year % 10) + '0';
+  }
+  buf[5] = ' ';
+  buf += 6;
+
+  /* the hour */
+  buf[0] = digitstrs[hour][0];
+  buf[1] = digitstrs[hour][1];
+  buf[2] = ':';
+  buf += 3;
+
+  /* the minute */
+  buf[0] = digitstrs[min][0];
+  buf[1] = digitstrs[min][1];
+  buf[2] = ':';
+  buf += 3;
+
+  /* the second */
+  buf[0] = digitstrs[sec][0];
+  buf[1] = digitstrs[sec][1];
+  buf[2] = ' ';
+  buf += 3;
+
+  /* the timezone string */
+  buf[0] = 'G';
+  buf[1] = 'M';
+  buf[2] = 'T';
+  buf[3] = '\0';
+  buf += 3;
+
+  return 29;                    // not counting NUL
+}
+
+int32_t
+mime_parse_int(const char *buf, const char *end)
+{
+  int32_t num;
+  bool negative;
+
+  if (!buf || (buf == end))
+    return 0;
+
+  if (is_digit(*buf))           // fast case
+  {
+    num = *buf++ - '0';
+    while ((buf != end) && is_digit(*buf))
+      num = (num * 10) + (*buf++ - '0');
+    return num;
+  } else {
+    num = 0;
+    negative = false;
+
+    while ((buf != end) && ParseRules::is_space(*buf))
+      buf += 1;
+
+    if ((buf != end) && (*buf == '-')) {
+      negative = true;
+      buf += 1;
+    }
+    // NOTE: we first compute the value as negative then correct the
+    // sign back to positive. This enables us to correctly parse MININT.
+    while ((buf != end) && is_digit(*buf))
+      num = (num * 10) - (*buf++ - '0');
+
+    if (!negative)
+      num = -num;
+
+    return num;
+  }
+}
+
+uint32_t
+mime_parse_uint(const char *buf, const char *end)
+{
+  uint32_t num;
+
+  if (!buf || (buf == end))
+    return 0;
+
+  if (is_digit(*buf))           // fast case
+  {
+    num = *buf++ - '0';
+    while ((buf != end) && is_digit(*buf))
+      num = (num * 10) + (*buf++ - '0');
+    return num;
+  } else {
+    num = 0;
+    while ((buf != end) && ParseRules::is_space(*buf))
+      buf += 1;
+    while ((buf != end) && is_digit(*buf))
+      num = (num * 10) + (*buf++ - '0');
+    return num;
+  }
+}
+
+int64_t
+mime_parse_int64(const char *buf, const char *end)
+{
+  int64_t num;
+  bool negative;
+
+  if (!buf || (buf == end))
+    return 0;
+
+  if (is_digit(*buf))           // fast case
+    {
+      num = *buf++ - '0';
+      while ((buf != end) && is_digit(*buf))
+        num = (num * 10) + (*buf++ - '0');
+      return num;
+    } else {
+    num = 0;
+    negative = false;
+
+    while ((buf != end) && ParseRules::is_space(*buf))
+      buf += 1;
+
+    if ((buf != end) && (*buf == '-')) {
+      negative = true;
+      buf += 1;
+    }
+    // NOTE: we first compute the value as negative then correct the
+    // sign back to positive. This enables us to correctly parse MININT.
+    while ((buf != end) && is_digit(*buf))
+      num = (num * 10) - (*buf++ - '0');
+
+    if (!negative)
+      num = -num;
+
+    return num;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+
+  mime_parse_rfc822_date_fastcase (const char *buf, int length, struct tm *tp)
+
+  This routine is a fast case parser for date strings that are guaranteed
+  to be in the rfc822/rfc1123 format.  It uses integer binary searches to
+  convert daya and month names into integral indices.
+
+  This routine only supports rfc822/rfc1123 dates.  It must be called
+  with NO leading whitespace, with a length >= 29 characters, and with
+  a comma in buf[3].  The caller MUST ensure these conditions.
+
+	Sun, 06 Nov 1994 08:49:37 GMT
+	01234567890123456789012345678
+
+  This function handles the common case dates fast.  The day and month
+  are processed as 3 character integers before falling to DFA.  This
+  table shows string, hash (24 bit values of 3 characters), and the
+  resulting string index.
+
+        Fri 0x467269 5    Apr 0x417072 3
+        Mon 0x4D6F6E 1    Aug 0x417567 7
+        Sat 0x536174 6    Dec 0x446563 11
+        Sun 0x53756E 0    Feb 0x466562 1
+        Thu 0x546875 4    Jan 0x4A616E 0
+        Tue 0x547565 2    Jul 0x4A756C 6
+        Wed 0x576564 3    Jun 0x4A756E 5
+                          Mar 0x4D6172 2
+                          May 0x4D6179 4
+                          Nov 0x4E6F76 10
+                          Oct 0x4F6374 9
+                          Sep 0x536570 8
+
+  -------------------------------------------------------------------------*/
+int
+mime_parse_rfc822_date_fastcase(const char *buf, int length, struct tm *tp)
+{
+  unsigned int three_char_wday, three_char_mon;
+
+  ink_assert(length >= 29);
+  ink_assert(!is_ws(buf[0]));
+  ink_assert(buf[3] == ',');
+
+  ////////////////////////////
+  // binary search for wday //
+  ////////////////////////////
+  tp->tm_wday = -1;
+  three_char_wday = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+  if (three_char_wday <= 0x53756E) {
+    if (three_char_wday == 0x467269)
+      tp->tm_wday = 5;
+    else if (three_char_wday == 0x4D6F6E)
+      tp->tm_wday = 1;
+    else if (three_char_wday == 0x536174)
+      tp->tm_wday = 6;
+    else if (three_char_wday == 0x53756E)
+      tp->tm_wday = 0;
+  } else {
+    if (three_char_wday == 0x546875)
+      tp->tm_wday = 4;
+    else if (three_char_wday == 0x547565)
+      tp->tm_wday = 2;
+    else if (three_char_wday == 0x576564)
+      tp->tm_wday = 3;
+  }
+  if (tp->tm_wday < 0) {
+    tp->tm_wday = day_names_dfa->match(buf, length);
+    if (tp->tm_wday < 0)
+      return 0;
+  }
+  //////////////////////////
+  // extract day of month //
+  //////////////////////////
+  tp->tm_mday = (buf[5] - '0') * 10 + (buf[6] - '0');
+
+  /////////////////////////////
+  // binary search for month //
+  /////////////////////////////
+  tp->tm_mon = -1;
+  three_char_mon = (buf[8] << 16) | (buf[9] << 8) | buf[10];
+  if (three_char_mon <= 0x4A756C) {
+    if (three_char_mon <= 0x446563) {
+      if (three_char_mon == 0x417072)
+        tp->tm_mon = 3;
+      else if (three_char_mon == 0x417567)
+        tp->tm_mon = 7;
+      else if (three_char_mon == 0x446563)
+        tp->tm_mon = 11;
+    } else {
+      if (three_char_mon == 0x466562)
+        tp->tm_mon = 1;
+      else if (three_char_mon == 0x4A616E)
+        tp->tm_mon = 0;
+      else if (three_char_mon == 0x4A756C)
+        tp->tm_mon = 6;
+    }
+  } else {
+    if (three_char_mon <= 0x4D6179) {
+      if (three_char_mon == 0x4A756E)
+        tp->tm_mon = 5;
+      else if (three_char_mon == 0x4D6172)
+        tp->tm_mon = 2;
+      else if (three_char_mon == 0x4D6179)
+        tp->tm_mon = 4;
+    } else {
+      if (three_char_mon == 0x4E6F76)
+        tp->tm_mon = 10;
+      else if (three_char_mon == 0x4F6374)
+        tp->tm_mon = 9;
+      else if (three_char_mon == 0x536570)
+        tp->tm_mon = 8;
+    }
+  }
+  if (tp->tm_mon < 0) {
+    tp->tm_mon = month_names_dfa->match(buf, length);
+    if (tp->tm_mon < 0)
+      return 0;
+  }
+  //////////////////
+  // extract year //
+  //////////////////
+  tp->tm_year = ((buf[12] - '0') * 1000 + (buf[13] - '0') * 100 + (buf[14] - '0') * 10 + (buf[15] - '0')) - 1900;
+
+  //////////////////
+  // extract time //
+  //////////////////
+  tp->tm_hour = (buf[17] - '0') * 10 + (buf[18] - '0');
+  tp->tm_min = (buf[20] - '0') * 10 + (buf[21] - '0');
+  tp->tm_sec = (buf[23] - '0') * 10 + (buf[24] - '0');
+  if ((buf[19] != ':') || (buf[22] != ':'))
+    return 0;
+  return 1;
+}
+
+/*-------------------------------------------------------------------------
+   Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 822, updated by RFC 1123
+   Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
+   Sun Nov  6 08:49:37 1994       ; ANSI C's asctime() format
+   6 Nov 1994 08:49:37 GMT        ; NNTP-style date
+  -------------------------------------------------------------------------*/
+time_t
+mime_parse_date(const char *buf, const char *end)
+{
+  static const int DAYS_OFFSET = 25508;
+  static const int days[12] = {
+    305, 336, -1, 30, 60, 91, 121, 152, 183, 213, 244, 274
+  };
+
+  struct tm tp;
+  time_t t;
+  int year;
+  int month;
+  int mday;
+
+  if (!buf)
+    return (time_t)0;
+
+  while ((buf != end) && is_ws(*buf))
+    buf += 1;
+
+  if ((buf != end) && is_digit(*buf)) { // NNTP date
+    if (!mime_parse_mday(buf, end, &tp.tm_mday)) {
+      return (time_t)0;
+    }
+    if (!mime_parse_month(buf, end, &tp.tm_mon)) {
+      return (time_t)0;
+    }
+    if (!mime_parse_year(buf, end, &tp.tm_year)) {
+      return (time_t)0;
+    }
+    if (!mime_parse_time(buf, end, &tp.tm_hour, &tp.tm_min, &tp.tm_sec)) {
+      return (time_t)0;
+    }
+  } else if (end && (end - buf >= 29) && (buf[3] == ',')) {
+    if (!mime_parse_rfc822_date_fastcase(buf, end - buf, &tp))
+      return (time_t)0;
+  } else {
+    if (!mime_parse_day(buf, end, &tp.tm_wday)) {
+      return (time_t)0;
+    }
+
+    while ((buf != end) && is_ws(*buf)) {
+      buf += 1;
+    }
+
+    if ((buf != end) && ((*buf == ',') || is_digit(*buf))) {
+      // RFC 822 or RFC 850 time format
+      if (!mime_parse_mday(buf, end, &tp.tm_mday)) {
+        return (time_t)0;
+      }
+      if (!mime_parse_month(buf, end, &tp.tm_mon)) {
+        return (time_t)0;
+      }
+      if (!mime_parse_year(buf, end, &tp.tm_year)) {
+        return (time_t)0;
+      }
+      if (!mime_parse_time(buf, end, &tp.tm_hour, &tp.tm_min, &tp.tm_sec)) {
+        return (time_t)0;
+      }
+      // ignore timezone specifier...should always be GMT anways
+    } else {
+      // ANSI C's asctime format
+      if (!mime_parse_month(buf, end, &tp.tm_mon)) {
+        return (time_t)0;
+      }
+      if (!mime_parse_mday(buf, end, &tp.tm_mday)) {
+        return (time_t)0;
+      }
+      if (!mime_parse_time(buf, end, &tp.tm_hour, &tp.tm_min, &tp.tm_sec)) {
+        return (time_t)0;
+      }
+      if (!mime_parse_year(buf, end, &tp.tm_year)) {
+        return (time_t)0;
+      }
+    }
+  }
+
+  year = tp.tm_year;
+  month = tp.tm_mon;
+  mday = tp.tm_mday;
+
+  // what should we do?
+  if (year > 137) {
+    return (time_t)INT_MAX;
+  }
+  if (year < 70) {
+    return (time_t)0;
+  }
+
+  mday += days[month];
+  /* month base == march */
+  if (month < 2) {
+    year -= 1;
+  }
+  mday += (year * 365) + (year / 4) - (year / 100) + (year / 100 + 3) / 4;
+  mday -= DAYS_OFFSET;
+
+  t = ((mday * 24 + tp.tm_hour) * 60 + tp.tm_min) * 60 + tp.tm_sec;
+
+  return t;
+}
+
+int
+mime_parse_day(const char *&buf, const char *end, int *day)
+{
+  const char *e;
+
+  while ((buf != end) && *buf && !ParseRules::is_alpha(*buf)) {
+    buf += 1;
+  }
+
+  e = buf;
+  while ((e != end) && *e && ParseRules::is_alpha(*e)) {
+    e += 1;
+  }
+
+  *day = day_names_dfa->match(buf, e - buf);
+  if (*day < 0) {
+    return 0;
+  } else {
+    buf = e;
+    return 1;
+  }
+}
+
+int
+mime_parse_month(const char *&buf, const char *end, int *month)
+{
+  const char *e;
+
+  while ((buf != end) && *buf && !ParseRules::is_alpha(*buf)) {
+    buf += 1;
+  }
+
+  e = buf;
+  while ((e != end) && *e && ParseRules::is_alpha(*e)) {
+    e += 1;
+  }
+
+  *month = month_names_dfa->match(buf, e - buf);
+  if (*month < 0) {
+    return 0;
+  } else {
+    buf = e;
+    return 1;
+  }
+}
+
+int
+mime_parse_mday(const char *&buf, const char *end, int *mday)
+{
+  return mime_parse_integer(buf, end, mday);
+}
+
+int
+mime_parse_year(const char *&buf, const char *end, int *year)
+{
+  int val;
+
+  while ((buf != end) && *buf && !is_digit(*buf)) {
+    buf += 1;
+  }
+
+  if ((buf == end) || (*buf == '\0')) {
+    return 0;
+  }
+
+  val = 0;
+
+  while ((buf != end) && *buf && is_digit(*buf)) {
+    val = (val * 10) + (*buf++ - '0');
+  }
+
+  if (val >= 1900) {
+    val -= 1900;
+  } else if (val < 70) {
+    val += 100;
+  }
+
+  *year = val;
+
+  return 1;
+}
+
+int
+mime_parse_time(const char *&buf, const char *end, int *hour, int *min, int *sec)
+{
+  if (!mime_parse_integer(buf, end, hour)) {
+    return 0;
+  }
+  if (!mime_parse_integer(buf, end, min)) {
+    return 0;
+  }
+  if (!mime_parse_integer(buf, end, sec)) {
+    return 0;
+  }
+  return 1;
+}
+
+// TODO: Do we really need mime_parse_int() and mime_parse_integer() ? I know
+// they have slightly different prototypes, but still...
+int
+mime_parse_integer(const char *&buf, const char *end, int *integer)
+{
+  int val;
+  bool negative;
+
+  negative = false;
+
+  while ((buf != end) && *buf && !is_digit(*buf) && (*buf != '-')) {
+    buf += 1;
+  }
+
+  if ((buf == end) || (*buf == '\0')) {
+    return 0;
+  }
+
+  if (*buf == '-') {
+    negative = true;
+    buf += 1;
+  }
+
+  val = 0;
+  while ((buf != end) && is_digit(*buf)) {
+    val = (val * 10) + (*buf++ - '0');
+  }
+
+  if (negative) {
+    *integer = -val;
+  } else {
+    *integer = val;
+  }
+
+  return 1;
+}
+
+
+/***********************************************************************
+ *                                                                     *
+ *                        M A R S H A L I N G                          *
+ *                                                                     *
+ ***********************************************************************/
+int
+MIMEFieldBlockImpl::marshal(MarshalXlate *ptr_xlate, int num_ptr, MarshalXlate *str_xlate, int num_str)
+{
+// printf("FieldBlockImpl:marshal  num_ptr = %d  num_str = %d\n", num_ptr, num_str);
+  HDR_MARSHAL_PTR(m_next, MIMEFieldBlockImpl, ptr_xlate, num_ptr);
+
+  if ((num_str == 1) && (num_ptr == 1)) {
+    for (uint32_t index = 0; index < m_freetop; index++) {
+      MIMEField *field = &(m_field_slots[index]);
+
+      if (field->is_live()) {
+        HDR_MARSHAL_STR_1(field->m_ptr_name, str_xlate);
+        HDR_MARSHAL_STR_1(field->m_ptr_value, str_xlate);
+        if (field->m_next_dup) {
+          HDR_MARSHAL_PTR_1(field->m_next_dup, MIMEField, ptr_xlate);
+        }
+      }
+    }
+  } else {
+    for (uint32_t index = 0; index < m_freetop; index++) {
+      MIMEField *field = &(m_field_slots[index]);
+
+      if (field->is_live()) {
+        HDR_MARSHAL_STR(field->m_ptr_name, str_xlate, num_str);
+        HDR_MARSHAL_STR(field->m_ptr_value, str_xlate, num_str);
+        if (field->m_next_dup) {
+          HDR_MARSHAL_PTR(field->m_next_dup, MIMEField, ptr_xlate, num_ptr);
+        }
+      }
+    }
+  }
+  return 0;
+}
+
+void
+MIMEFieldBlockImpl::unmarshal(intptr_t offset)
+{
+  HDR_UNMARSHAL_PTR(m_next, MIMEFieldBlockImpl, offset);
+
+
+  for (uint32_t index = 0; index < m_freetop; index++) {
+    MIMEField *field = &(m_field_slots[index]);
+
+    // FIX ME - DO I NEED TO DEAL WITH OTHER READINESSES?
+    if (field->is_live()) {
+      HDR_UNMARSHAL_STR(field->m_ptr_name, offset);
+      HDR_UNMARSHAL_STR(field->m_ptr_value, offset);
+      if (field->m_next_dup) {
+        HDR_UNMARSHAL_PTR(field->m_next_dup, MIMEField, offset);
+      }
+    }
+
+  }
+}
+
+void
+MIMEFieldBlockImpl::move_strings(HdrStrHeap *new_heap)
+{
+  for (uint32_t index = 0; index < m_freetop; index++) {
+    MIMEField *field = &(m_field_slots[index]);
+
+    if (field->is_live() || field->is_detached()) {
+      // FIX ME - Should do the field in one shot and preserve
+      //   raw_printable if it's set
+      field->m_n_v_raw_printable = 0;
+
+      HDR_MOVE_STR(field->m_ptr_name, field->m_len_name);
+      HDR_MOVE_STR(field->m_ptr_value, field->m_len_value);
+    }
+  }
+}
+
+size_t
+MIMEFieldBlockImpl::strings_length()
+{
+  size_t ret = 0;
+
+  for (uint32_t index = 0; index < m_freetop; index++) {
+    MIMEField *field = &(m_field_slots[index]);
+
+    if (field->m_readiness == MIME_FIELD_SLOT_READINESS_LIVE ||
+        field->m_readiness == MIME_FIELD_SLOT_READINESS_DETACHED) {
+      ret += field->m_len_name;
+      ret += field->m_len_value;
+    }
+  }
+  return ret;
+}
+
+void
+MIMEFieldBlockImpl::check_strings(HeapCheck *heaps, int num_heaps)
+{
+  for (uint32_t index = 0; index < m_freetop; index++) {
+    MIMEField *field = &(m_field_slots[index]);
+
+    if (field->is_live() || field->is_detached()) {
+      // FIX ME - Should check raw printing characters as well
+      CHECK_STR(field->m_ptr_name, field->m_len_name, heaps, num_heaps);
+      CHECK_STR(field->m_ptr_value, field->m_len_value, heaps, num_heaps);
+    }
+  }
+}
+
+int
+MIMEHdrImpl::marshal(MarshalXlate *ptr_xlate, int num_ptr, MarshalXlate *str_xlate, int num_str)
+{
+  // printf("MIMEHdrImpl:marshal  num_ptr = %d  num_str = %d\n", num_ptr, num_str);
+  HDR_MARSHAL_PTR(m_fblock_list_tail, MIMEFieldBlockImpl, ptr_xlate, num_ptr);
+  return m_first_fblock.marshal(ptr_xlate, num_ptr, str_xlate, num_str);
+}
+
+void
+MIMEHdrImpl::unmarshal(intptr_t offset)
+{
+  HDR_UNMARSHAL_PTR(m_fblock_list_tail, MIMEFieldBlockImpl, offset);
+  m_first_fblock.unmarshal(offset);
+}
+
+void
+MIMEHdrImpl::move_strings(HdrStrHeap *new_heap)
+{
+  m_first_fblock.move_strings(new_heap);
+}
+
+size_t
+MIMEHdrImpl::strings_length()
+{
+  return m_first_fblock.strings_length();
+}
+
+void
+MIMEHdrImpl::check_strings(HeapCheck *heaps, int num_heaps)
+{
+  m_first_fblock.check_strings(heaps, num_heaps);
+}
+
+
+/***********************************************************************
+ *                                                                     *
+ *                 C O O K E D    V A L U E    C A C H E               *
+ *                                                                     *
+ ***********************************************************************/
+
+////////////////////////////////////////////////////////
+// we need to recook the cooked values cache when:    //
+//                                                    //
+//      setting the value and the field is live       //
+//      attaching the field and the field isn't empty //
+//      detaching the field                           //
+////////////////////////////////////////////////////////
+
+
+void
+MIMEHdrImpl::recompute_cooked_stuff(MIMEField *changing_field_or_null)
+{
+  int len, tlen;
+  const char *s;
+  const char *c;
+  const char *e;
+  const char *token_wks;
+  MIMEField *field;
+  uint32_t mask = 0;
+
+  mime_hdr_cooked_stuff_init(this, changing_field_or_null);
+
+  //////////////////////////////////////////////////
+  // (1) cook the Cache-Control header if present //
+  //////////////////////////////////////////////////
+
+  // to be safe, recompute unless you know this call is for other cooked field
+  if ((changing_field_or_null == NULL) || (changing_field_or_null->m_wks_idx != MIME_WKSIDX_PRAGMA)) {
+
+    field = mime_hdr_field_find(this, MIME_FIELD_CACHE_CONTROL, MIME_LEN_CACHE_CONTROL);
+
+    if (field) {
+      // try pathpaths first -- unlike most other fastpaths, this one
+      // is probably more useful for polygraph than for the real world
+      if (!field->has_dups()) {
+        s = field->value_get(&len);
+        if (ptr_len_casecmp(s, len, "public", 6) == 0) {
+          mask = MIME_COOKED_MASK_CC_PUBLIC;
+          m_cooked_stuff.m_cache_control.m_mask |= mask;
+        } else if (ptr_len_casecmp(s, len, "private,no-cache", 16) == 0) {
+          mask = MIME_COOKED_MASK_CC_PRIVATE | MIME_COOKED_MASK_CC_NO_CACHE;
+          m_cooked_stuff.m_cache_control.m_mask |= mask;
+        }
+      }
+
+      if (mask == 0) {
+        HdrCsvIter csv_iter;
+
+        for (s = csv_iter.get_first(field, &len); s != NULL; s = csv_iter.get_next(&len)) {
+          e = s + len;
+          for (c = s; (c < e) && (ParseRules::is_token(*c)); c++);
+          tlen = c - s;
+
+          // If >= 0 then this is a well known token
+          if (hdrtoken_tokenize(s, tlen, &token_wks) >= 0) {
+#if TRACK_COOKING
+            Debug("http", "recompute_cooked_stuff: got field '%s'\n", token_wks);
+#endif
+
+            HdrTokenHeapPrefix *p = hdrtoken_wks_to_prefix(token_wks);
+            mask = p->wks_type_specific.u.cache_control.cc_mask;
+            m_cooked_stuff.m_cache_control.m_mask |= mask;
+
+#if TRACK_COOKING
+            Debug("http", "                        set mask 0x%0X\n", mask);
+#endif
+
+            if (mask & (MIME_COOKED_MASK_CC_MAX_AGE |
+                        MIME_COOKED_MASK_CC_S_MAXAGE | MIME_COOKED_MASK_CC_MAX_STALE | MIME_COOKED_MASK_CC_MIN_FRESH)) {
+              int value;
+
+              if (mime_parse_integer(c, e, &value)) {
+#if TRACK_COOKING
+                Debug("http", "                        set integer value %d\n", value);
+#endif
+                if (token_wks == MIME_VALUE_MAX_AGE)
+                  m_cooked_stuff.m_cache_control.m_secs_max_age = value;
+                else if (token_wks == MIME_VALUE_MIN_FRESH)
+                  m_cooked_stuff.m_cache_control.m_secs_min_fresh = value;
+                else if (token_wks == MIME_VALUE_MAX_STALE)
+                  m_cooked_stuff.m_cache_control.m_secs_max_stale = value;
+                else if (token_wks == MIME_VALUE_S_MAXAGE)
+                  m_cooked_stuff.m_cache_control.m_secs_s_maxage = value;
+              } else {
+#if TRACK_COOKING
+                Debug("http", "                        set integer value %d\n", INT_MAX);
+#endif
+                if (token_wks == MIME_VALUE_MAX_STALE)
+                  m_cooked_stuff.m_cache_control.m_secs_max_stale = INT_MAX;
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+  ///////////////////////////////////////////
+  // (2) cook the Pragma header if present //
+  ///////////////////////////////////////////
+
+  if ((changing_field_or_null == NULL) || (changing_field_or_null->m_wks_idx != MIME_WKSIDX_CACHE_CONTROL)) {
+
+    field = mime_hdr_field_find(this, MIME_FIELD_PRAGMA, MIME_LEN_PRAGMA);
+    if (field) {
+      if (!field->has_dups()) { // try fastpath first
+        s = field->value_get(&len);
+        if (ptr_len_casecmp(s, len, "no-cache", 8) == 0) {
+          m_cooked_stuff.m_pragma.m_no_cache = 1;
+          return;
+        }
+      }
+
+      {
+        HdrCsvIter csv_iter;
+
+        for (s = csv_iter.get_first(field, &len); s != NULL; s = csv_iter.get_next(&len)) {
+          e = s + len;
+          for (c = s; (c < e) && (ParseRules::is_token(*c)); c++);
+          tlen = c - s;
+
+          if (hdrtoken_tokenize(s, tlen, &token_wks) >= 0) {
+            if (token_wks == MIME_VALUE_NO_CACHE)
+              m_cooked_stuff.m_pragma.m_no_cache = 1;
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/proxy/hdrs/MIME.h b/proxy/hdrs/MIME.h
new file mode 100644
index 00000000..74a63c32
--- /dev/null
+++ b/proxy/hdrs/MIME.h
@@ -0,0 +1,1636 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __MIME_H__
+#define __MIME_H__
+
+#include <sys/time.h>
+
+#include "ink_assert.h"
+#include "ink_apidefs.h"
+#include "ink_string++.h"
+#include "HdrHeap.h"
+#include "HdrToken.h"
+
+/***********************************************************************
+ *                                                                     *
+ *                              Defines                                *
+ *                                                                     *
+ ***********************************************************************/
+
+enum MIMEParseResult
+{
+  PARSE_ERROR = -1,
+  PARSE_DONE = 0,
+  PARSE_OK = 1,
+  PARSE_CONT = 2
+};
+
+enum
+{
+  UNDEFINED_COUNT = -1
+};
+
+/// Parsing state.
+enum MimeParseState {
+  MIME_PARSE_BEFORE, ///< Before a field.
+  MIME_PARSE_FOUND_CR, ///< Before a field, found a CR.
+  MIME_PARSE_INSIDE, ///< Inside a field.
+  MIME_PARSE_AFTER,  ///< After a field.
+};
+
+#define MIME_SCANNER_TYPE_LINE				0
+#define MIME_SCANNER_TYPE_FIELD				1
+
+/***********************************************************************
+ *                                                                     *
+ *                              Assertions                             *
+ *                                                                     *
+ ***********************************************************************/
+
+#ifdef DEBUG
+#define MIME_HDR_SANITY_CHECK mime_hdr_sanity_check
+#else
+#define MIME_HDR_SANITY_CHECK (void)
+#endif
+
+#define	MIME_FIELD_SLOT_READINESS_EMPTY		0
+#define	MIME_FIELD_SLOT_READINESS_DETACHED	1
+#define	MIME_FIELD_SLOT_READINESS_LIVE		2
+#define	MIME_FIELD_SLOT_READINESS_DELETED	3
+
+#define	MIME_FIELD_SLOT_FLAGS_DUP_HEAD		(1 << 0)
+#define	MIME_FIELD_SLOT_FLAGS_COOKED		(1 << 1)
+
+#define MIME_FIELD_BLOCK_SLOTS			16
+
+#define	MIME_FIELD_SLOTNUM_BITS			4
+#define	MIME_FIELD_SLOTNUM_MASK			((1 << MIME_FIELD_SLOTNUM_BITS) - 1)
+#define	MIME_FIELD_SLOTNUM_MAX			(MIME_FIELD_SLOTNUM_MASK - 1)
+#define MIME_FIELD_SLOTNUM_UNKNOWN		MIME_FIELD_SLOTNUM_MAX
+
+/***********************************************************************
+ *                                                                     *
+ *                    MIMEField & MIMEFieldBlockImpl                   *
+ *                                                                     *
+ ***********************************************************************/
+
+struct MIMEHdrImpl;
+
+struct MIMEField
+{
+  const char *m_ptr_name;       // 4
+  const char *m_ptr_value;      // 4
+  MIMEField *m_next_dup;        // 4
+  int16_t m_wks_idx;              // 2
+  uint16_t m_len_name;            // 2
+  uint32_t m_len_value:24;        // 3
+  uint8_t m_n_v_raw_printable:1;  // 1/8
+  uint8_t m_n_v_raw_printable_pad:3;      // 3/8
+  uint8_t m_readiness:2;          // 2/8
+  uint8_t m_flags:2;              // 2/8
+
+  bool is_dup_head() const {
+    return (m_flags & MIME_FIELD_SLOT_FLAGS_DUP_HEAD);
+  }
+
+  bool is_cooked() {
+    return (m_flags & MIME_FIELD_SLOT_FLAGS_COOKED);
+  }
+
+  bool is_live() const {
+    return (m_readiness == MIME_FIELD_SLOT_READINESS_LIVE);
+  }
+
+  bool is_detached() const {
+    return (m_readiness == MIME_FIELD_SLOT_READINESS_DETACHED);
+  }
+
+  bool supports_commas() const {
+    if (m_wks_idx >= 0)
+      return (hdrtoken_index_to_flags(m_wks_idx) & MIME_FLAGS_COMMAS);
+    else
+      return true;               // by default, assume supports commas
+  }
+
+  const char *name_get(int *length);
+
+  const char *value_get(int *length);
+  int32_t value_get_int();
+  uint32_t value_get_uint();
+  int64_t value_get_int64();
+  time_t value_get_date();
+  int value_get_comma_list(StrList * list);
+
+  void name_set(HdrHeap * heap, MIMEHdrImpl * mh, const char *name, int length);
+
+  void value_set(HdrHeap * heap, MIMEHdrImpl * mh, const char *value, int length);
+  void value_set_int(HdrHeap * heap, MIMEHdrImpl * mh, int32_t value);
+  void value_set_uint(HdrHeap * heap, MIMEHdrImpl * mh, uint32_t value);
+  void value_set_int64(HdrHeap * heap, MIMEHdrImpl * mh, int64_t value);
+  void value_set_date(HdrHeap * heap, MIMEHdrImpl * mh, time_t value);
+  void value_clear(HdrHeap * heap, MIMEHdrImpl * mh);
+  // MIME standard separator ',' is used as the default value
+  // Other separators (e.g. ';' in Set-cookie/Cookie) are also possible
+  void value_append(HdrHeap * heap, MIMEHdrImpl * mh, const char *value,
+                    int length, bool prepend_comma = false, const char separator = ',');
+  int has_dups();
+};
+
+struct MIMEFieldBlockImpl:public HdrHeapObjImpl
+{
+  // HdrHeapObjImpl is 4 bytes
+  uint32_t m_freetop;
+  MIMEFieldBlockImpl *m_next;
+  MIMEField m_field_slots[MIME_FIELD_BLOCK_SLOTS];
+  // mime_hdr_copy_onto assumes that m_field_slots is last --
+  // don't add any new fields afterit.
+
+  // Marshaling Functions
+  int marshal(MarshalXlate * ptr_xlate, int num_ptr, MarshalXlate * str_xlate, int num_str);
+  void unmarshal(intptr_t offset);
+  void move_strings(HdrStrHeap * new_heap);
+  size_t strings_length();
+
+  // Sanity Check Functions
+  void check_strings(HeapCheck * heaps, int num_heaps);
+};
+
+/***********************************************************************
+ *                                                                     *
+ *                              MIMECooked                             *
+ *                                                                     *
+ ***********************************************************************/
+
+enum MIMECookedMask
+{
+  MIME_COOKED_MASK_CC_MAX_AGE = (1 << 0),
+  MIME_COOKED_MASK_CC_NO_CACHE = (1 << 1),
+  MIME_COOKED_MASK_CC_NO_STORE = (1 << 2),
+  MIME_COOKED_MASK_CC_NO_TRANSFORM = (1 << 3),
+  MIME_COOKED_MASK_CC_MAX_STALE = (1 << 4),
+  MIME_COOKED_MASK_CC_MIN_FRESH = (1 << 5),
+  MIME_COOKED_MASK_CC_ONLY_IF_CACHED = (1 << 6),
+  MIME_COOKED_MASK_CC_PUBLIC = (1 << 7),
+  MIME_COOKED_MASK_CC_PRIVATE = (1 << 8),
+  MIME_COOKED_MASK_CC_MUST_REVALIDATE = (1 << 9),
+  MIME_COOKED_MASK_CC_PROXY_REVALIDATE = (1 << 10),
+  MIME_COOKED_MASK_CC_S_MAXAGE = (1 << 11),
+  MIME_COOKED_MASK_CC_NEED_REVALIDATE_ONCE = (1 << 12),
+  MIME_COOKED_MASK_CC_EXTENSION = (1 << 13)
+};
+
+struct MIMECookedCacheControl
+{
+  uint32_t m_mask;
+  int32_t m_secs_max_age;
+  int32_t m_secs_s_maxage;
+  int32_t m_secs_max_stale;
+  int32_t m_secs_min_fresh;
+};
+
+struct MIMECookedPragma
+{
+  bool m_no_cache;
+};
+
+struct MIMECooked
+{
+  MIMECookedCacheControl m_cache_control;
+  MIMECookedPragma m_pragma;
+};
+
+/***********************************************************************
+ *                                                                     *
+ *                                MIMEHdr                              *
+ *                                                                     *
+ ***********************************************************************/
+
+struct MIMEHdrImpl:public HdrHeapObjImpl
+{
+  // HdrHeapObjImpl is 4 bytes, so this will result in 4 bytes padding
+  uint64_t m_presence_bits;
+  uint32_t m_slot_accelerators[4];
+
+  MIMECooked m_cooked_stuff;
+
+  MIMEFieldBlockImpl *m_fblock_list_tail;
+  MIMEFieldBlockImpl m_first_fblock;    // 1 block inline
+  // mime_hdr_copy_onto assumes that m_first_fblock is last --
+  // don't add any new fields after it.
+
+  // Marshaling Functions
+  int marshal(MarshalXlate * ptr_xlate, int num_ptr, MarshalXlate * str_xlate, int num_str);
+  void unmarshal(intptr_t offset);
+  void move_strings(HdrStrHeap * new_heap);
+  size_t strings_length();
+
+  // Sanity Check Functions
+  void check_strings(HeapCheck * heaps, int num_heaps);
+
+  // Cooked values
+  void recompute_cooked_stuff(MIMEField * changing_field_or_null = NULL);
+};
+
+/***********************************************************************
+ *                                                                     *
+ *                                Parser                               *
+ *                                                                     *
+ ***********************************************************************/
+
+struct MIMEScanner
+{
+  char *m_line;                 // buffered line being built up
+  //int m_type;               // what kind of scanner: raw line, or field (this has never been used)
+  int m_line_length;            // size of real live data in buffer
+  int m_line_size;              // total allocated size of buffer
+//  int m_state;                  // state of scanning state machine
+  MimeParseState m_state; ///< Parsing machine state.
+};
+
+
+struct MIMEParser
+{
+  MIMEScanner m_scanner;
+  int32_t m_field;
+  int m_field_flags;
+  int m_value;
+};
+
+/***********************************************************************
+ *                                                                     *
+ *                                SDK                                  *
+ *                                                                     *
+ ***********************************************************************/
+
+/********************************************/
+/* SDK Handles to Fields are special structures */
+/********************************************/
+struct MIMEFieldSDKHandle:public HdrHeapObjImpl
+{
+  MIMEHdrImpl *mh;
+  MIMEField *field_ptr;
+};
+
+/***********************************************************************
+ *                                                                     *
+ *                     Well-Known Field Name Tokens                    *
+ *                                                                     *
+ ***********************************************************************/
+
+extern const char *MIME_FIELD_ACCEPT;
+extern const char *MIME_FIELD_ACCEPT_CHARSET;
+extern const char *MIME_FIELD_ACCEPT_ENCODING;
+extern const char *MIME_FIELD_ACCEPT_LANGUAGE;
+extern const char *MIME_FIELD_ACCEPT_RANGES;
+extern const char *MIME_FIELD_AGE;
+extern const char *MIME_FIELD_ALLOW;
+extern const char *MIME_FIELD_APPROVED;
+extern const char *MIME_FIELD_AUTHORIZATION;
+extern const char *MIME_FIELD_BYTES;
+extern const char *MIME_FIELD_CACHE_CONTROL;
+extern const char *MIME_FIELD_CLIENT_IP;
+extern const char *MIME_FIELD_CONNECTION;
+extern const char *MIME_FIELD_CONTENT_BASE;
+extern const char *MIME_FIELD_CONTENT_ENCODING;
+extern const char *MIME_FIELD_CONTENT_LANGUAGE;
+extern const char *MIME_FIELD_CONTENT_LENGTH;
+extern const char *MIME_FIELD_CONTENT_LOCATION;
+extern const char *MIME_FIELD_CONTENT_MD5;
+extern const char *MIME_FIELD_CONTENT_RANGE;
+extern const char *MIME_FIELD_CONTENT_TYPE;
+extern const char *MIME_FIELD_CONTROL;
+extern const char *MIME_FIELD_COOKIE;
+extern const char *MIME_FIELD_DATE;
+extern const char *MIME_FIELD_DISTRIBUTION;
+extern const char *MIME_FIELD_ETAG;
+extern const char *MIME_FIELD_EXPECT;
+extern const char *MIME_FIELD_EXPIRES;
+extern const char *MIME_FIELD_FOLLOWUP_TO;
+extern const char *MIME_FIELD_FROM;
+extern const char *MIME_FIELD_HOST;
+extern const char *MIME_FIELD_IF_MATCH;
+extern const char *MIME_FIELD_IF_MODIFIED_SINCE;
+extern const char *MIME_FIELD_IF_NONE_MATCH;
+extern const char *MIME_FIELD_IF_RANGE;
+extern const char *MIME_FIELD_IF_UNMODIFIED_SINCE;
+extern const char *MIME_FIELD_KEEP_ALIVE;
+extern const char *MIME_FIELD_KEYWORDS;
+extern const char *MIME_FIELD_LAST_MODIFIED;
+extern const char *MIME_FIELD_LINES;
+inkcoreapi extern const char *MIME_FIELD_LOCATION;
+extern const char *MIME_FIELD_MAX_FORWARDS;
+extern const char *MIME_FIELD_MESSAGE_ID;
+extern const char *MIME_FIELD_NEWSGROUPS;
+extern const char *MIME_FIELD_ORGANIZATION;
+extern const char *MIME_FIELD_PATH;
+extern const char *MIME_FIELD_PRAGMA;
+extern const char *MIME_FIELD_PROXY_AUTHENTICATE;
+extern const char *MIME_FIELD_PROXY_AUTHORIZATION;
+extern const char *MIME_FIELD_PROXY_CONNECTION;
+extern const char *MIME_FIELD_PUBLIC;
+extern const char *MIME_FIELD_RANGE;
+extern const char *MIME_FIELD_REFERENCES;
+extern const char *MIME_FIELD_REFERER;
+extern const char *MIME_FIELD_REPLY_TO;
+extern const char *MIME_FIELD_RETRY_AFTER;
+extern const char *MIME_FIELD_SENDER;
+extern const char *MIME_FIELD_SERVER;
+extern const char *MIME_FIELD_SET_COOKIE;
+extern const char *MIME_FIELD_STRICT_TRANSPORT_SECURITY;
+extern const char *MIME_FIELD_SUBJECT;
+extern const char *MIME_FIELD_SUMMARY;
+extern const char *MIME_FIELD_TE;
+extern const char *MIME_FIELD_TRANSFER_ENCODING;
+extern const char *MIME_FIELD_UPGRADE;
+extern const char *MIME_FIELD_USER_AGENT;
+extern const char *MIME_FIELD_VARY;
+extern const char *MIME_FIELD_VIA;
+extern const char *MIME_FIELD_WARNING;
+extern const char *MIME_FIELD_WWW_AUTHENTICATE;
+extern const char *MIME_FIELD_XREF;
+extern const char *MIME_FIELD_INT_DATA_INFO;
+extern const char *MIME_FIELD_X_ID;
+extern const char *MIME_FIELD_X_FORWARDED_FOR;
+extern const char *MIME_FIELD_SEC_WEBSOCKET_KEY;
+extern const char *MIME_FIELD_SEC_WEBSOCKET_VERSION;
+
+extern const char *MIME_VALUE_BYTES;
+extern const char *MIME_VALUE_CHUNKED;
+extern const char *MIME_VALUE_CLOSE;
+extern const char *MIME_VALUE_COMPRESS;
+extern const char *MIME_VALUE_DEFLATE;
+extern const char *MIME_VALUE_GZIP;
+extern const char *MIME_VALUE_IDENTITY;
+extern const char *MIME_VALUE_KEEP_ALIVE;
+extern const char *MIME_VALUE_MAX_AGE;
+extern const char *MIME_VALUE_MAX_STALE;
+extern const char *MIME_VALUE_MIN_FRESH;
+extern const char *MIME_VALUE_MUST_REVALIDATE;
+extern const char *MIME_VALUE_NONE;
+extern const char *MIME_VALUE_NO_CACHE;
+extern const char *MIME_VALUE_NO_STORE;
+extern const char *MIME_VALUE_NO_TRANSFORM;
+extern const char *MIME_VALUE_ONLY_IF_CACHED;
+extern const char *MIME_VALUE_PRIVATE;
+extern const char *MIME_VALUE_PROXY_REVALIDATE;
+extern const char *MIME_VALUE_PUBLIC;
+extern const char *MIME_VALUE_S_MAXAGE;
+extern const char *MIME_VALUE_NEED_REVALIDATE_ONCE;
+extern const char *MIME_VALUE_WEBSOCKET;
+
+extern int MIME_LEN_ACCEPT;
+extern int MIME_LEN_ACCEPT_CHARSET;
+extern int MIME_LEN_ACCEPT_ENCODING;
+extern int MIME_LEN_ACCEPT_LANGUAGE;
+extern int MIME_LEN_ACCEPT_RANGES;
+extern int MIME_LEN_AGE;
+extern int MIME_LEN_ALLOW;
+extern int MIME_LEN_APPROVED;
+extern int MIME_LEN_AUTHORIZATION;
+extern int MIME_LEN_BYTES;
+extern int MIME_LEN_CACHE_CONTROL;
+extern int MIME_LEN_CLIENT_IP;
+extern int MIME_LEN_CONNECTION;
+extern int MIME_LEN_CONTENT_BASE;
+extern int MIME_LEN_CONTENT_ENCODING;
+extern int MIME_LEN_CONTENT_LANGUAGE;
+extern int MIME_LEN_CONTENT_LENGTH;
+extern int MIME_LEN_CONTENT_LOCATION;
+extern int MIME_LEN_CONTENT_MD5;
+extern int MIME_LEN_CONTENT_RANGE;
+extern int MIME_LEN_CONTENT_TYPE;
+extern int MIME_LEN_CONTROL;
+extern int MIME_LEN_COOKIE;
+extern int MIME_LEN_DATE;
+extern int MIME_LEN_DISTRIBUTION;
+extern int MIME_LEN_ETAG;
+extern int MIME_LEN_EXPECT;
+extern int MIME_LEN_EXPIRES;
+extern int MIME_LEN_FOLLOWUP_TO;
+extern int MIME_LEN_FROM;
+extern int MIME_LEN_HOST;
+extern int MIME_LEN_IF_MATCH;
+extern int MIME_LEN_IF_MODIFIED_SINCE;
+extern int MIME_LEN_IF_NONE_MATCH;
+extern int MIME_LEN_IF_RANGE;
+extern int MIME_LEN_IF_UNMODIFIED_SINCE;
+extern int MIME_LEN_KEEP_ALIVE;
+extern int MIME_LEN_KEYWORDS;
+extern int MIME_LEN_LAST_MODIFIED;
+extern int MIME_LEN_LINES;
+inkcoreapi extern int MIME_LEN_LOCATION;
+extern int MIME_LEN_MAX_FORWARDS;
+extern int MIME_LEN_MESSAGE_ID;
+extern int MIME_LEN_NEWSGROUPS;
+extern int MIME_LEN_ORGANIZATION;
+extern int MIME_LEN_PATH;
+extern int MIME_LEN_PRAGMA;
+extern int MIME_LEN_PROXY_AUTHENTICATE;
+extern int MIME_LEN_PROXY_AUTHORIZATION;
+extern int MIME_LEN_PROXY_CONNECTION;
+extern int MIME_LEN_PUBLIC;
+extern int MIME_LEN_RANGE;
+extern int MIME_LEN_REFERENCES;
+extern int MIME_LEN_REFERER;
+extern int MIME_LEN_REPLY_TO;
+extern int MIME_LEN_RETRY_AFTER;
+extern int MIME_LEN_SENDER;
+extern int MIME_LEN_SERVER;
+extern int MIME_LEN_SET_COOKIE;
+extern int MIME_LEN_STRICT_TRANSPORT_SECURITY;
+extern int MIME_LEN_SUBJECT;
+extern int MIME_LEN_SUMMARY;
+extern int MIME_LEN_TE;
+extern int MIME_LEN_TRANSFER_ENCODING;
+extern int MIME_LEN_UPGRADE;
+extern int MIME_LEN_USER_AGENT;
+extern int MIME_LEN_VARY;
+extern int MIME_LEN_VIA;
+extern int MIME_LEN_WARNING;
+extern int MIME_LEN_WWW_AUTHENTICATE;
+extern int MIME_LEN_XREF;
+extern int MIME_LEN_INT_DATA_INFO;
+extern int MIME_LEN_X_ID;
+extern int MIME_LEN_X_FORWARDED_FOR;
+
+extern int MIME_LEN_BYTES;
+extern int MIME_LEN_CHUNKED;
+extern int MIME_LEN_CLOSE;
+extern int MIME_LEN_COMPRESS;
+extern int MIME_LEN_DEFLATE;
+extern int MIME_LEN_GZIP;
+extern int MIME_LEN_IDENTITY;
+extern int MIME_LEN_KEEP_ALIVE;
+extern int MIME_LEN_MAX_AGE;
+extern int MIME_LEN_MAX_STALE;
+extern int MIME_LEN_MIN_FRESH;
+extern int MIME_LEN_MUST_REVALIDATE;
+extern int MIME_LEN_NONE;
+extern int MIME_LEN_NO_CACHE;
+extern int MIME_LEN_NO_STORE;
+extern int MIME_LEN_NO_TRANSFORM;
+extern int MIME_LEN_ONLY_IF_CACHED;
+extern int MIME_LEN_PRIVATE;
+extern int MIME_LEN_PROXY_REVALIDATE;
+extern int MIME_LEN_PUBLIC;
+extern int MIME_LEN_S_MAXAGE;
+extern int MIME_LEN_NEED_REVALIDATE_ONCE;
+
+extern int MIME_LEN_SEC_WEBSOCKET_KEY;
+extern int MIME_LEN_SEC_WEBSOCKET_VERSION;
+
+extern int MIME_WKSIDX_ACCEPT;
+extern int MIME_WKSIDX_ACCEPT_CHARSET;
+extern int MIME_WKSIDX_ACCEPT_ENCODING;
+extern int MIME_WKSIDX_ACCEPT_LANGUAGE;
+extern int MIME_WKSIDX_ACCEPT_RANGES;
+extern int MIME_WKSIDX_AGE;
+extern int MIME_WKSIDX_ALLOW;
+extern int MIME_WKSIDX_APPROVED;
+extern int MIME_WKSIDX_AUTHORIZATION;
+extern int MIME_WKSIDX_BYTES;
+extern int MIME_WKSIDX_CACHE_CONTROL;
+extern int MIME_WKSIDX_CLIENT_IP;
+extern int MIME_WKSIDX_CONNECTION;
+extern int MIME_WKSIDX_CONTENT_BASE;
+extern int MIME_WKSIDX_CONTENT_ENCODING;
+extern int MIME_WKSIDX_CONTENT_LANGUAGE;
+extern int MIME_WKSIDX_CONTENT_LENGTH;
+extern int MIME_WKSIDX_CONTENT_LOCATION;
+extern int MIME_WKSIDX_CONTENT_MD5;
+extern int MIME_WKSIDX_CONTENT_RANGE;
+extern int MIME_WKSIDX_CONTENT_TYPE;
+extern int MIME_WKSIDX_CONTROL;
+extern int MIME_WKSIDX_COOKIE;
+extern int MIME_WKSIDX_DATE;
+extern int MIME_WKSIDX_DISTRIBUTION;
+extern int MIME_WKSIDX_ETAG;
+extern int MIME_WKSIDX_EXPECT;
+extern int MIME_WKSIDX_EXPIRES;
+extern int MIME_WKSIDX_FOLLOWUP_TO;
+extern int MIME_WKSIDX_FROM;
+extern int MIME_WKSIDX_HOST;
+extern int MIME_WKSIDX_IF_MATCH;
+extern int MIME_WKSIDX_IF_MODIFIED_SINCE;
+extern int MIME_WKSIDX_IF_NONE_MATCH;
+extern int MIME_WKSIDX_IF_RANGE;
+extern int MIME_WKSIDX_IF_UNMODIFIED_SINCE;
+extern int MIME_WKSIDX_KEEP_ALIVE;
+extern int MIME_WKSIDX_KEYWORDS;
+extern int MIME_WKSIDX_LAST_MODIFIED;
+extern int MIME_WKSIDX_LINES;
+extern int MIME_WKSIDX_LOCATION;
+extern int MIME_WKSIDX_MAX_FORWARDS;
+extern int MIME_WKSIDX_MESSAGE_ID;
+extern int MIME_WKSIDX_NEWSGROUPS;
+extern int MIME_WKSIDX_ORGANIZATION;
+extern int MIME_WKSIDX_PATH;
+extern int MIME_WKSIDX_PRAGMA;
+extern int MIME_WKSIDX_PROXY_AUTHENTICATE;
+extern int MIME_WKSIDX_PROXY_AUTHORIZATION;
+extern int MIME_WKSIDX_PROXY_CONNECTION;
+extern int MIME_WKSIDX_PUBLIC;
+extern int MIME_WKSIDX_RANGE;
+extern int MIME_WKSIDX_REFERENCES;
+extern int MIME_WKSIDX_REFERER;
+extern int MIME_WKSIDX_REPLY_TO;
+extern int MIME_WKSIDX_RETRY_AFTER;
+extern int MIME_WKSIDX_SENDER;
+extern int MIME_WKSIDX_SERVER;
+extern int MIME_WKSIDX_SET_COOKIE;
+extern int MIME_WKSIDX_STRICT_TRANSPORT_SECURITY;
+extern int MIME_WKSIDX_SUBJECT;
+extern int MIME_WKSIDX_SUMMARY;
+extern int MIME_WKSIDX_TE;
+extern int MIME_WKSIDX_TRANSFER_ENCODING;
+extern int MIME_WKSIDX_UPGRADE;
+extern int MIME_WKSIDX_USER_AGENT;
+extern int MIME_WKSIDX_VARY;
+extern int MIME_WKSIDX_VIA;
+extern int MIME_WKSIDX_WARNING;
+extern int MIME_WKSIDX_WWW_AUTHENTICATE;
+extern int MIME_WKSIDX_XREF;
+extern int MIME_WKSIDX_INT_DATA_INFO;
+extern int MIME_WKSIDX_X_ID;
+extern int MIME_WKSIDX_SEC_WEBSOCKET_KEY;
+extern int MIME_WKSIDX_SEC_WEBSOCKET_VERSION;
+
+/***********************************************************************
+ *                                                                     *
+ *                           Internal C API                            *
+ *                                                                     *
+ ***********************************************************************/
+
+uint64_t mime_field_presence_mask(const char *well_known_str);
+uint64_t mime_field_presence_mask(int well_known_str_index);
+int mime_field_presence_get(MIMEHdrImpl * h, const char *well_known_str);
+int mime_field_presence_get(MIMEHdrImpl * h, int well_known_str_index);
+void mime_hdr_presence_set(MIMEHdrImpl * h, const char *well_known_str);
+void mime_hdr_presence_set(MIMEHdrImpl * h, int well_known_str_index);
+void mime_hdr_presence_unset(MIMEHdrImpl * h, const char *well_known_str);
+void mime_hdr_presence_unset(MIMEHdrImpl * h, int well_known_str_index);
+
+void mime_hdr_sanity_check(MIMEHdrImpl * mh);
+
+void mime_init();
+void mime_init_cache_control_cooking_masks();
+void mime_init_date_format_table();
+
+MIMEHdrImpl *mime_hdr_create(HdrHeap * heap);
+void _mime_hdr_field_block_init(MIMEFieldBlockImpl * fblock);
+void mime_hdr_cooked_stuff_init(MIMEHdrImpl * mh, MIMEField * changing_field_or_null = NULL);
+void mime_hdr_init(MIMEHdrImpl * mh);
+MIMEFieldBlockImpl *_mime_field_block_copy(MIMEFieldBlockImpl * s_fblock, HdrHeap * s_heap, HdrHeap * d_heap);
+void _mime_field_block_destroy(HdrHeap * heap, MIMEFieldBlockImpl * fblock);
+void mime_hdr_destroy_field_block_list(HdrHeap * heap, MIMEFieldBlockImpl * head);
+void mime_hdr_destroy(HdrHeap * heap, MIMEHdrImpl * mh);
+void mime_hdr_copy_onto(MIMEHdrImpl * s_mh, HdrHeap * s_heap,
+                        MIMEHdrImpl * d_mh, HdrHeap * d_heap, bool inherit_strs = true);
+MIMEHdrImpl *mime_hdr_clone(MIMEHdrImpl * s_mh, HdrHeap * s_heap, HdrHeap * d_heap, bool inherit_strs = true);
+void mime_hdr_field_block_list_adjust(int block_count, MIMEFieldBlockImpl * old_list, MIMEFieldBlockImpl * new_list);
+int mime_hdr_length_get(MIMEHdrImpl * mh);
+
+void mime_hdr_fields_clear(HdrHeap * heap, MIMEHdrImpl * mh);
+
+MIMEField *_mime_hdr_field_list_search_by_wks(MIMEHdrImpl * mh, int wks_idx);
+MIMEField *_mime_hdr_field_list_search_by_string(MIMEHdrImpl * mh, const char *field_name_str, int field_name_len);
+MIMEField *_mime_hdr_field_list_search_by_slotnum(MIMEHdrImpl * mh, int slotnum);
+inkcoreapi MIMEField *mime_hdr_field_find(MIMEHdrImpl * mh, const char *field_name_str, int field_name_len);
+
+MIMEField *mime_hdr_field_get(MIMEHdrImpl * mh, int idx);
+MIMEField *mime_hdr_field_get_slotnum(MIMEHdrImpl * mh, int slotnum);
+int mime_hdr_fields_count(MIMEHdrImpl * mh);
+
+void mime_field_init(MIMEField * field);
+MIMEField *mime_field_create(HdrHeap * heap, MIMEHdrImpl * mh);
+MIMEField *mime_field_create_named(HdrHeap * heap, MIMEHdrImpl * mh, const char *name, int length);
+
+void mime_hdr_field_attach(MIMEHdrImpl * mh, MIMEField * field, int check_for_dups, MIMEField * prev_dup);
+void mime_hdr_field_detach(MIMEHdrImpl * mh, MIMEField * field, bool detach_all_dups = false);
+void mime_hdr_field_delete(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, bool delete_all_dups = false);
+
+int mime_hdr_field_slotnum(MIMEHdrImpl * mh, MIMEField * field);
+inkcoreapi MIMEField *mime_hdr_prepare_for_value_set(HdrHeap * heap, MIMEHdrImpl * mh, const char *name,
+                                                     int name_length);
+
+void mime_field_destroy(MIMEHdrImpl * mh, MIMEField * field);
+
+const char *mime_field_name_get(MIMEField * field, int *length);
+void mime_field_name_set(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field,
+                         int16_t name_wks_idx_or_neg1, const char *name, int length, bool must_copy_string);
+
+inkcoreapi const char *mime_field_value_get(MIMEField * field, int *length);
+int32_t mime_field_value_get_int(MIMEField * field);
+uint32_t mime_field_value_get_uint(MIMEField * field);
+int64_t mime_field_value_get_int64(MIMEField * field);
+time_t mime_field_value_get_date(MIMEField * field);
+const char *mime_field_value_get_comma_val(MIMEField * field, int *length, int idx);
+int mime_field_value_get_comma_val_count(MIMEField * field);
+int mime_field_value_get_comma_list(MIMEField * field, StrList * list);
+
+void mime_field_value_set_comma_val(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, int idx,
+                                    const char *new_piece_str, int new_piece_len);
+void mime_field_value_delete_comma_val(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, int idx);
+void mime_field_value_extend_comma_val(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, int idx,
+                                       const char *new_piece_str, int new_piece_len);
+void mime_field_value_insert_comma_val(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, int idx,
+                                       const char *new_piece_str, int new_piece_len);
+
+inkcoreapi void mime_field_value_set(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field,
+                                     const char *value, int length, bool must_copy_string);
+void mime_field_value_set_int(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, int32_t value);
+void mime_field_value_set_uint(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, uint32_t value);
+void mime_field_value_set_int64(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, int64_t value);
+void mime_field_value_set_date(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field, time_t value);
+void mime_field_name_value_set(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field,
+                               int16_t name_wks_idx_or_neg1, const char *name,
+                               int name_length, const char *value,
+                               int value_length, int n_v_raw_printable, int n_v_raw_length, bool must_copy_strings);
+
+void mime_field_value_append(HdrHeap * heap, MIMEHdrImpl * mh, MIMEField * field,
+                             const char *value, int length, bool prepend_comma, const char separator);
+
+void mime_scanner_init(MIMEScanner * scanner);
+void mime_scanner_clear(MIMEScanner * scanner);
+void mime_scanner_append(MIMEScanner * scanner, const char *data, int data_size);
+MIMEParseResult mime_scanner_get(MIMEScanner * S, const char **raw_input_s, const char *raw_input_e,
+                                 const char **output_s, const char **output_e,
+                                 bool * output_shares_raw_input, bool raw_input_eof, int raw_input_scan_type);
+
+void mime_parser_init(MIMEParser * parser);
+void mime_parser_clear(MIMEParser * parser);
+MIMEParseResult mime_parser_parse(MIMEParser * parser, HdrHeap * heap, MIMEHdrImpl * mh,
+                                  const char **real_s, const char *real_e, bool must_copy_strings, bool eof);
+
+void mime_hdr_describe(HdrHeapObjImpl * raw, bool recurse);
+void mime_field_block_describe(HdrHeapObjImpl * raw, bool recurse);
+
+int mime_hdr_print(HdrHeap * heap, MIMEHdrImpl * mh, char *buf_start,
+                   int buf_length, int *buf_index_inout, int *buf_chars_to_skip_inout);
+int mime_mem_print(const char *src_d, int src_l, char *buf_start, int buf_length,
+                   int *buf_index_inout, int *buf_chars_to_skip_inout);
+int mime_field_print(MIMEField * field, char *buf_start, int buf_length,
+                     int *buf_index_inout, int *buf_chars_to_skip_inout);
+
+const char *mime_str_u16_set(HdrHeap * heap, const char *s_str, int s_len,
+                             const char **d_str, uint16_t * d_len, bool must_copy);
+
+int mime_field_length_get(MIMEField * field);
+int mime_format_int(char *buf, int32_t val, size_t buf_len);
+int mime_format_uint(char *buf, uint32_t val, size_t buf_len);
+int mime_format_int64(char *buf, int64_t val, size_t buf_len);
+
+void mime_days_since_epoch_to_mdy_slowcase(unsigned int days_since_jan_1_1970,
+                                           int *m_return, int *d_return, int *y_return);
+void mime_days_since_epoch_to_mdy(unsigned int days_since_jan_1_1970, int *m_return, int *d_return, int *y_return);
+int mime_format_date(char *buffer, time_t value);
+
+int32_t mime_parse_int(const char *buf, const char *end = NULL);
+uint32_t mime_parse_uint(const char *buf, const char *end = NULL);
+int64_t mime_parse_int64(const char *buf, const char *end = NULL);
+int mime_parse_rfc822_date_fastcase(const char *buf, int length, struct tm *tp);
+time_t mime_parse_date(const char *buf, const char *end = NULL);
+int mime_parse_day(const char *&buf, const char *end, int *day);
+int mime_parse_month(const char *&buf, const char *end, int *month);
+int mime_parse_mday(const char *&buf, const char *end, int *mday);
+int mime_parse_year(const char *&buf, const char *end, int *year);
+int mime_parse_time(const char *&buf, const char *end, int *hour, int *min, int *sec);
+int mime_parse_integer(const char *&buf, const char *end, int *integer);
+
+/***********************************************************************
+ *                                                                     *
+ *                          MIMEField Methods                          *
+ *                                                                     *
+ ***********************************************************************/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+MIMEField::name_get(int *length)
+{
+  return (mime_field_name_get(this, length));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEField::name_set(HdrHeap * heap, MIMEHdrImpl * mh, const char *name, int length)
+{
+  int16_t name_wks_idx;
+  const char *name_wks;
+
+  if (hdrtoken_is_wks(name)) {
+    name_wks_idx = hdrtoken_wks_to_index(name);
+    mime_field_name_set(heap, mh, this, name_wks_idx, name, length, 1);
+  } else {
+    int field_name_wks_idx = hdrtoken_tokenize(name, length, &name_wks);
+    mime_field_name_set(heap, mh, this, field_name_wks_idx, (field_name_wks_idx == -1 ? name : name_wks), length, 1);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+MIMEField::value_get(int *length)
+{
+  return (mime_field_value_get(this, length));
+}
+
+inline int32_t
+MIMEField::value_get_int()
+{
+  return (mime_field_value_get_int(this));
+}
+
+inline uint32_t
+MIMEField::value_get_uint()
+{
+  return (mime_field_value_get_uint(this));
+}
+
+inline int64_t
+MIMEField::value_get_int64()
+{
+  return (mime_field_value_get_int64(this));
+}
+
+inline time_t
+MIMEField::value_get_date()
+{
+  return (mime_field_value_get_date(this));
+}
+
+inline int
+MIMEField::value_get_comma_list(StrList * list)
+{
+  return (mime_field_value_get_comma_list(this, list));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEField::value_set(HdrHeap * heap, MIMEHdrImpl * mh, const char *value, int length)
+{
+  mime_field_value_set(heap, mh, this, value, length, 1);
+}
+
+inline void
+MIMEField::value_set_int(HdrHeap * heap, MIMEHdrImpl * mh, int32_t value)
+{
+  mime_field_value_set_int(heap, mh, this, value);
+}
+
+inline void
+MIMEField::value_set_uint(HdrHeap * heap, MIMEHdrImpl * mh, uint32_t value)
+{
+  mime_field_value_set_uint(heap, mh, this, value);
+}
+
+inline void
+MIMEField::value_set_int64(HdrHeap * heap, MIMEHdrImpl * mh, int64_t value)
+{
+  mime_field_value_set_int64(heap, mh, this, value);
+}
+
+inline void
+MIMEField::value_set_date(HdrHeap * heap, MIMEHdrImpl * mh, time_t value)
+{
+  mime_field_value_set_date(heap, mh, this, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEField::value_clear(HdrHeap * heap, MIMEHdrImpl * mh)
+{
+  value_set(heap, mh, "", 0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEField::value_append(HdrHeap * heap, MIMEHdrImpl * mh, const char *value,
+                        int length, bool prepend_comma, const char separator)
+{
+  mime_field_value_append(heap, mh, this, value, length, prepend_comma, separator);
+}
+
+inline int
+MIMEField::has_dups()
+{
+  return (m_next_dup != NULL);
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                           MIMEFieldIter                             *
+ *                                                                     *
+ ***********************************************************************/
+
+struct MIMEFieldIter
+{
+  uint32_t m_slot;
+  MIMEFieldBlockImpl *m_block;
+};
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                            MIMEHdr Class                            *
+ *                                                                     *
+ ***********************************************************************/
+
+class MIMEHdr:public HdrHeapSDKHandle
+{
+public:
+
+  MIMEHdrImpl * m_mime;
+
+  MIMEHdr();
+  ~MIMEHdr();
+
+  int valid() const;
+
+  void create(HdrHeap * heap = NULL);
+  void copy(const MIMEHdr * hdr);
+
+  int length_get();
+
+  void fields_clear();
+  int fields_count();
+
+  MIMEField *field_create(const char *name = NULL, int length = -1);
+  MIMEField *field_find(const char *name, int length);
+  void field_attach(MIMEField * field);
+  void field_detach(MIMEField * field, bool detach_all_dups = true);
+  void field_delete(MIMEField * field, bool delete_all_dups = true);
+  void field_delete(const char *name, int name_length);
+
+  MIMEField *iter_get_first(MIMEFieldIter * iter);
+  MIMEField *iter_get_next(MIMEFieldIter * iter);
+
+  uint64_t presence(uint64_t mask);
+
+  int print(char *buf, int bufsize, int *bufindex, int *chars_to_skip);
+
+  int parse(MIMEParser * parser, const char **start, const char *end, bool must_copy_strs, bool eof);
+
+  const char *value_get(const char *name, int name_length, int *value_length);
+  int32_t value_get_int(const char *name, int name_length);
+  uint32_t value_get_uint(const char *name, int name_length);
+  int64_t value_get_int64(const char *name, int name_length);
+  time_t value_get_date(const char *name, int name_length);
+  int value_get_comma_list(const char *name, int name_length, StrList * list);
+
+  void value_set(const char *name, int name_length, const char *value, int value_length);
+  void value_set_int(const char *name, int name_length, int32_t value);
+  void value_set_uint(const char *name, int name_length, uint32_t value);
+  void value_set_int64(const char *name, int name_length, int64_t value);
+  void value_set_date(const char *name, int name_length, time_t value);
+  // MIME standard separator ',' is used as the default value
+  // Other separators (e.g. ';' in Set-cookie/Cookie) are also possible
+  void value_append(const char *name, int name_length,
+                    const char *value, int value_length, bool prepend_comma = false, const char separator = ',');
+
+  void field_value_set(MIMEField * field, const char *value, int value_length);
+  void field_value_set_int(MIMEField * field, int32_t value);
+  void field_value_set_uint(MIMEField * field, uint32_t value);
+  void field_value_set_int64(MIMEField * field, int64_t value);
+  void field_value_set_date(MIMEField * field, time_t value);
+  // MIME standard separator ',' is used as the default value
+  // Other separators (e.g. ';' in Set-cookie/Cookie) are also possible
+  void field_value_append(MIMEField * field,
+                          const char *value, int value_length, bool prepend_comma = false, const char separator = ',');
+  time_t get_age();
+  int64_t get_content_length();
+  time_t get_date();
+  time_t get_expires();
+  time_t get_if_modified_since();
+  time_t get_if_unmodified_since();
+  time_t get_last_modified();
+  time_t get_if_range_date();
+  int32_t get_max_forwards();
+  int32_t get_warning(int idx = 0);
+
+  uint32_t get_cooked_cc_mask();
+  int32_t get_cooked_cc_max_age();
+  int32_t get_cooked_cc_s_maxage();
+  int32_t get_cooked_cc_max_stale();
+  int32_t get_cooked_cc_min_fresh();
+  bool get_cooked_pragma_no_cache();
+
+  /** Get the value of the host field.
+      This parses the host field for brackets and port value.
+      @return The mime HOST field if it has a value, @c NULL otherwise.
+  */
+  MIMEField* get_host_port_values(
+			    char const** host_ptr, ///< [out] Pointer to host.
+			    int* host_len, ///< [out] Length of host.
+			    char const** port_ptr, ///< [out] Pointer to port.
+			    int* port_len ///< [out] Length of port.
+			    );
+
+  void set_cooked_cc_need_revalidate_once();
+  void unset_cooked_cc_need_revalidate_once();
+
+  void set_age(time_t value);
+  void set_content_length(int64_t value);
+  void set_date(time_t value);
+  void set_expires(time_t value);
+  void set_if_modified_since(time_t value);
+  void set_if_unmodified_since(time_t value);
+  void set_last_modified(time_t value);
+  void set_max_forwards(int32_t value);
+  void set_warning(int32_t value);
+  void set_server(const char *server_id_tag, int server_id_tag_size);
+
+private:
+
+  // No gratuitous copies & refcounts!
+    MIMEHdr(const MIMEHdr & m);
+    MIMEHdr & operator =(const MIMEHdr & m);
+};
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline MIMEHdr::MIMEHdr():HdrHeapSDKHandle()
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline MIMEHdr::~MIMEHdr()
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+MIMEHdr::valid() const
+{
+  return (m_mime && m_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::create(HdrHeap * heap)
+{
+  if (heap) {
+    m_heap = heap;
+  } else if (!m_heap) {
+    m_heap = new_HdrHeap();
+  }
+
+  m_mime = mime_hdr_create(m_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::copy(const MIMEHdr * src_hdr)
+{
+  if (valid()) {
+    mime_hdr_copy_onto(src_hdr->m_mime, src_hdr->m_heap, m_mime, m_heap, (m_heap != src_hdr->m_heap) ? true : false);
+  } else {
+    m_heap = new_HdrHeap();
+    m_mime = mime_hdr_clone(src_hdr->m_mime, src_hdr->m_heap, m_heap);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+MIMEHdr::length_get()
+{
+  return mime_hdr_length_get(m_mime);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::fields_clear()
+{
+  mime_hdr_fields_clear(m_heap, m_mime);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+MIMEHdr::fields_count()
+{
+  return mime_hdr_fields_count(m_mime);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline MIMEField *
+MIMEHdr::field_create(const char *name, int length)
+{
+  MIMEField *field = mime_field_create(m_heap, m_mime);
+
+  if (name) {
+    int field_name_wks_idx = hdrtoken_tokenize(name, length);
+    mime_field_name_set(m_heap, m_mime, field, field_name_wks_idx, name, length, 1);
+  }
+
+  return (field);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline MIMEField *
+MIMEHdr::field_find(const char *name, int length)
+{
+//    ink_assert(valid());
+  return mime_hdr_field_find(m_mime, name, length);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::field_attach(MIMEField * field)
+{
+  mime_hdr_field_attach(m_mime, field, 1, NULL);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::field_detach(MIMEField * field, bool detach_all_dups)
+{
+  mime_hdr_field_detach(m_mime, field, detach_all_dups);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::field_delete(MIMEField * field, bool delete_all_dups)
+{
+  mime_hdr_field_delete(m_heap, m_mime, field, delete_all_dups);
+}
+
+inline void
+MIMEHdr::field_delete(const char *name, int name_length)
+{
+  MIMEField *field = field_find(name, name_length);
+  if (field)
+    field_delete(field);
+}
+
+inline MIMEField *
+MIMEHdr::iter_get_first(MIMEFieldIter * iter)
+{
+  iter->m_block = &m_mime->m_first_fblock;
+  iter->m_slot = (unsigned int) -1;
+  return iter_get_next(iter);
+}
+
+inline MIMEField *
+MIMEHdr::iter_get_next(MIMEFieldIter * iter)
+{
+  MIMEField *f;
+  MIMEFieldBlockImpl *b = iter->m_block;
+
+  int slot = iter->m_slot + 1;
+
+  while (b) {
+    for (; slot < (int) b->m_freetop; slot++) {
+      f = &(b->m_field_slots[slot]);
+      if (f->is_live()) {
+        iter->m_slot = slot;
+        iter->m_block = b;
+        return f;
+      }
+    }
+    b = b->m_next;
+    slot = 0;
+  }
+
+  iter->m_block = NULL;
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline uint64_t
+MIMEHdr::presence(uint64_t mask)
+{
+  return (m_mime->m_presence_bits & mask);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+MIMEHdr::print(char *buf, int bufsize, int *bufindex, int *chars_to_skip)
+{
+  return mime_hdr_print(m_heap, m_mime, buf, bufsize, bufindex, chars_to_skip);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+MIMEHdr::parse(MIMEParser * parser, const char **start, const char *end, bool must_copy_strs, bool eof)
+{
+  if (!m_heap)
+    m_heap = new_HdrHeap();
+
+  if (!m_mime)
+    m_mime = mime_hdr_create(m_heap);
+
+  return mime_parser_parse(parser, m_heap, m_mime, start, end, must_copy_strs, eof);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+MIMEHdr::value_get(const char *name, int name_length, int *value_length_return)
+{
+//    ink_assert(valid());
+  MIMEField *field = field_find(name, name_length);
+
+  if (field)
+    return (mime_field_value_get(field, value_length_return));
+  else
+    return (NULL);
+}
+
+inline int32_t
+MIMEHdr::value_get_int(const char *name, int name_length)
+{
+  MIMEField *field = field_find(name, name_length);
+
+  if (field)
+    return (mime_field_value_get_int(field));
+  else
+    return (0);
+}
+
+inline uint32_t
+MIMEHdr::value_get_uint(const char *name, int name_length)
+{
+  MIMEField *field = field_find(name, name_length);
+
+  if (field)
+    return (mime_field_value_get_uint(field));
+  else
+    return (0);
+}
+
+inline int64_t
+MIMEHdr::value_get_int64(const char *name, int name_length)
+{
+  MIMEField *field = field_find(name, name_length);
+
+  if (field)
+    return (mime_field_value_get_int64(field));
+  else
+    return (0);
+}
+
+inline time_t
+MIMEHdr::value_get_date(const char *name, int name_length)
+{
+  MIMEField *field = field_find(name, name_length);
+
+  if (field)
+    return (mime_field_value_get_date(field));
+  else
+    return (0);
+}
+
+inline int
+MIMEHdr::value_get_comma_list(const char *name, int name_length, StrList * list)
+{
+  MIMEField *field = field_find(name, name_length);
+
+  if (field)
+    return (field->value_get_comma_list(list));
+  else
+    return (0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::field_value_set(MIMEField * field, const char *value, int value_length)
+{
+  field->value_set(m_heap, m_mime, value, value_length);
+}
+
+inline void
+MIMEHdr::field_value_set_int(MIMEField * field, int32_t value)
+{
+  field->value_set_int(m_heap, m_mime, value);
+}
+
+inline void
+MIMEHdr::field_value_set_uint(MIMEField * field, uint32_t value)
+{
+  field->value_set_uint(m_heap, m_mime, value);
+}
+
+inline void
+MIMEHdr::field_value_set_int64(MIMEField * field, int64_t value)
+{
+  field->value_set_int64(m_heap, m_mime, value);
+}
+
+inline void
+MIMEHdr::field_value_set_date(MIMEField * field, time_t value)
+{
+  field->value_set_date(m_heap, m_mime, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::field_value_append(MIMEField * field,
+                            const char *value_str, int value_len, bool prepend_comma, const char separator)
+{
+  field->value_append(m_heap, m_mime, value_str, value_len, prepend_comma, separator);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::value_set(const char *name, int name_length, const char *value, int value_length)
+{
+  MIMEField *field;
+  field = mime_hdr_prepare_for_value_set(m_heap, m_mime, name, name_length);
+  field->value_set(m_heap, m_mime, value, value_length);
+}
+
+inline void
+MIMEHdr::value_set_int(const char *name, int name_length, int32_t value)
+{
+  MIMEField *field;
+  field = mime_hdr_prepare_for_value_set(m_heap, m_mime, name, name_length);
+  field->value_set_int(m_heap, m_mime, value);
+}
+
+inline void
+MIMEHdr::value_set_uint(const char *name, int name_length, uint32_t value)
+{
+  MIMEField *field;
+  field = mime_hdr_prepare_for_value_set(m_heap, m_mime, name, name_length);
+  field->value_set_uint(m_heap, m_mime, value);
+}
+
+inline void
+MIMEHdr::value_set_int64(const char *name, int name_length, int64_t value)
+{
+  MIMEField *field;
+  field = mime_hdr_prepare_for_value_set(m_heap, m_mime, name, name_length);
+  field->value_set_int64(m_heap, m_mime, value);
+}
+
+inline void
+MIMEHdr::value_set_date(const char *name, int name_length, time_t value)
+{
+  MIMEField *field;
+  field = mime_hdr_prepare_for_value_set(m_heap, m_mime, name, name_length);
+  field->value_set_date(m_heap, m_mime, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::value_append(const char *name, int name_length,
+                      const char *value, int value_length, bool prepend_comma, const char separator)
+{
+  MIMEField *field;
+
+  field = field_find(name, name_length);
+  if (field) {
+    while (field->m_next_dup)
+      field = field->m_next_dup;
+    field->value_append(m_heap, m_mime, value, value_length, prepend_comma, separator);
+  } else {
+    field = field_create(name, name_length);
+    field_attach(field);
+    field->value_set(m_heap, m_mime, value, value_length);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+inline time_t
+MIMEHdr::get_age()
+{
+  int64_t age = value_get_int64(MIME_FIELD_AGE, MIME_LEN_AGE);
+
+  if (age < 0) // We should ignore negative Age: values
+    return 0;
+
+  if ((4 == sizeof(time_t)) && (age > INT_MAX)) // Overflow
+    return -1;
+
+  return age;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int64_t
+MIMEHdr::get_content_length()
+{
+  return (value_get_int64(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline time_t
+MIMEHdr::get_date()
+{
+  return (value_get_date(MIME_FIELD_DATE, MIME_LEN_DATE));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline time_t
+MIMEHdr::get_expires()
+{
+  return (value_get_date(MIME_FIELD_EXPIRES, MIME_LEN_EXPIRES));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline time_t
+MIMEHdr::get_if_modified_since()
+{
+  return (value_get_date(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline time_t
+MIMEHdr::get_if_unmodified_since()
+{
+  return (value_get_date(MIME_FIELD_IF_UNMODIFIED_SINCE, MIME_LEN_IF_UNMODIFIED_SINCE));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline time_t
+MIMEHdr::get_last_modified()
+{
+  return (value_get_date(MIME_FIELD_LAST_MODIFIED, MIME_LEN_LAST_MODIFIED));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline time_t
+MIMEHdr::get_if_range_date()
+{
+  return (value_get_date(MIME_FIELD_IF_RANGE, MIME_LEN_IF_RANGE));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+MIMEHdr::get_max_forwards()
+{
+  return (value_get_int(MIME_FIELD_MAX_FORWARDS, MIME_LEN_MAX_FORWARDS));
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+MIMEHdr::get_warning(int idx)
+{
+  (void) idx;
+  // FIXME: what do we do here?
+  ink_release_assert(!"unimplemented");
+  return (0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline uint32_t
+MIMEHdr::get_cooked_cc_mask()
+{
+  return (m_mime->m_cooked_stuff.m_cache_control.m_mask);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+MIMEHdr::get_cooked_cc_max_age()
+{
+  return (m_mime->m_cooked_stuff.m_cache_control.m_secs_max_age);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+MIMEHdr::get_cooked_cc_s_maxage()
+{
+  return (m_mime->m_cooked_stuff.m_cache_control.m_secs_s_maxage);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+MIMEHdr::get_cooked_cc_max_stale()
+{
+  return (m_mime->m_cooked_stuff.m_cache_control.m_secs_max_stale);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int32_t
+MIMEHdr::get_cooked_cc_min_fresh()
+{
+  return (m_mime->m_cooked_stuff.m_cache_control.m_secs_min_fresh);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline bool
+MIMEHdr::get_cooked_pragma_no_cache()
+{
+  return (m_mime->m_cooked_stuff.m_pragma.m_no_cache);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_cooked_cc_need_revalidate_once()
+{
+  m_mime->m_cooked_stuff.m_cache_control.m_mask |= MIME_COOKED_MASK_CC_NEED_REVALIDATE_ONCE;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::unset_cooked_cc_need_revalidate_once()
+{
+  m_mime->m_cooked_stuff.m_cache_control.m_mask &= ~((uint32_t) MIME_COOKED_MASK_CC_NEED_REVALIDATE_ONCE);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_age(time_t value)
+{
+  if (value < 0)
+    value_set_uint(MIME_FIELD_AGE, MIME_LEN_AGE, (uint32_t)INT_MAX + 1);
+  else {
+    if (sizeof(time_t) > 4) {
+      value_set_int64(MIME_FIELD_AGE, MIME_LEN_AGE, value);
+    } else {
+      value_set_uint(MIME_FIELD_AGE, MIME_LEN_AGE, value);
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_content_length(int64_t value)
+{
+  value_set_int64(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_date(time_t value)
+{
+  value_set_date(MIME_FIELD_DATE, MIME_LEN_DATE, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_expires(time_t value)
+{
+  value_set_date(MIME_FIELD_EXPIRES, MIME_LEN_EXPIRES, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_if_modified_since(time_t value)
+{
+  value_set_date(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_if_unmodified_since(time_t value)
+{
+  value_set_date(MIME_FIELD_IF_UNMODIFIED_SINCE, MIME_LEN_IF_UNMODIFIED_SINCE, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_last_modified(time_t value)
+{
+  value_set_date(MIME_FIELD_LAST_MODIFIED, MIME_LEN_LAST_MODIFIED, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_max_forwards(int32_t value)
+{
+  value_set_int(MIME_FIELD_MAX_FORWARDS, MIME_LEN_MAX_FORWARDS, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_warning(int32_t value)
+{
+  value_set_int(MIME_FIELD_WARNING, MIME_LEN_WARNING, value);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+MIMEHdr::set_server(const char *server_id_tag, int server_id_tag_size)
+{
+  value_set(MIME_FIELD_SERVER, MIME_LEN_SERVER, server_id_tag, server_id_tag_size);
+}
+
+#endif /* __MIME_H__ */
diff --git a/proxy/hdrs/Makefile.am b/proxy/hdrs/Makefile.am
new file mode 100644
index 00000000..a5be3353
--- /dev/null
+++ b/proxy/hdrs/Makefile.am
@@ -0,0 +1,65 @@
+# Makefile.am for Hdrs
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts
+
+noinst_LIBRARIES = libhdrs.a
+EXTRA_PROGRAMS = load_http_hdr
+
+# Http library source files.
+libhdrs_a_SOURCES = \
+  HTTP.cc \
+  HTTP.h \
+  HdrHeap.cc \
+  HdrHeap.h \
+  HdrTSOnly.cc \
+  HdrToken.cc \
+  HdrToken.h \
+  HdrUtils.cc \
+  HdrUtils.h \
+  HttpCompat.cc \
+  HttpCompat.h \
+  MIME.cc \
+  MIME.h \
+  URL.cc \
+  URL.h
+
+if BUILD_TESTS
+  libhdrs_a_SOURCES += \
+    HdrTest.cc \
+    HdrTest.h
+endif
+
+load_http_hdr_SOURCES = \
+  HTTP.h \
+  HdrHeap.h \
+  MIME.h \
+  load_http_hdr.cc
+
+load_http_hdr_LDADD = -L. -lhdrs \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBTCL@
+load_http_hdr_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+
+#test_UNUSED_SOURCES = \
+#  test_header.cc \
+#  test_urlhash.cc
diff --git a/proxy/hdrs/Makefile.in b/proxy/hdrs/Makefile.in
new file mode 100644
index 00000000..85640295
--- /dev/null
+++ b/proxy/hdrs/Makefile.in
@@ -0,0 +1,914 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
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+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
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+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts
+
+noinst_LIBRARIES = libhdrs.a
+
+# Http library source files.
+libhdrs_a_SOURCES = HTTP.cc HTTP.h HdrHeap.cc HdrHeap.h HdrTSOnly.cc \
+	HdrToken.cc HdrToken.h HdrUtils.cc HdrUtils.h HttpCompat.cc \
+	HttpCompat.h MIME.cc MIME.h URL.cc URL.h $(am__append_1)
+load_http_hdr_SOURCES = \
+  HTTP.h \
+  HdrHeap.h \
+  MIME.h \
+  load_http_hdr.cc
+
+load_http_hdr_LDADD = -L. -lhdrs \
+  $(top_builddir)/lib/ts/libtsutil.la \
+  @LIBTCL@
+
+load_http_hdr_LDFLAGS = @EXTRA_CXX_LDFLAGS@ @LIBTOOL_LINK_FLAGS@
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign proxy/hdrs/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign proxy/hdrs/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libhdrs.a: $(libhdrs_a_OBJECTS) $(libhdrs_a_DEPENDENCIES) $(EXTRA_libhdrs_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libhdrs.a
+	$(AM_V_AR)$(libhdrs_a_AR) libhdrs.a $(libhdrs_a_OBJECTS) $(libhdrs_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libhdrs.a
+
+load_http_hdr$(EXEEXT): $(load_http_hdr_OBJECTS) $(load_http_hdr_DEPENDENCIES) $(EXTRA_load_http_hdr_DEPENDENCIES) 
+	@rm -f load_http_hdr$(EXEEXT)
+	$(AM_V_CXXLD)$(load_http_hdr_LINK) $(load_http_hdr_OBJECTS) $(load_http_hdr_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HTTP.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HdrHeap.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HdrTSOnly.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HdrTest.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HdrToken.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HdrUtils.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/HttpCompat.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/MIME.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/URL.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/load_http_hdr.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
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+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+#test_UNUSED_SOURCES = \
+#  test_header.cc \
+#  test_urlhash.cc
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/hdrs/URL.cc b/proxy/hdrs/URL.cc
new file mode 100644
index 00000000..65930e9e
--- /dev/null
+++ b/proxy/hdrs/URL.cc
@@ -0,0 +1,1752 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <assert.h>
+#include "libts.h"
+#include "URL.h"
+#include "MIME.h"
+#include "HTTP.h"
+#include "Diags.h"
+
+const char *URL_SCHEME_FILE;
+const char *URL_SCHEME_FTP;
+const char *URL_SCHEME_GOPHER;
+const char *URL_SCHEME_HTTP;
+const char *URL_SCHEME_HTTPS;
+const char *URL_SCHEME_WSS;
+const char *URL_SCHEME_WS;
+const char *URL_SCHEME_MAILTO;
+const char *URL_SCHEME_NEWS;
+const char *URL_SCHEME_NNTP;
+const char *URL_SCHEME_PROSPERO;
+const char *URL_SCHEME_TELNET;
+const char *URL_SCHEME_TUNNEL;
+const char *URL_SCHEME_WAIS;
+const char *URL_SCHEME_PNM;
+const char *URL_SCHEME_RTSP;
+const char *URL_SCHEME_RTSPU;
+const char *URL_SCHEME_MMS;
+const char *URL_SCHEME_MMSU;
+const char *URL_SCHEME_MMST;
+
+int URL_WKSIDX_FILE;
+int URL_WKSIDX_FTP;
+int URL_WKSIDX_GOPHER;
+int URL_WKSIDX_HTTP;
+int URL_WKSIDX_HTTPS;
+int URL_WKSIDX_WS;
+int URL_WKSIDX_WSS;
+int URL_WKSIDX_MAILTO;
+int URL_WKSIDX_NEWS;
+int URL_WKSIDX_NNTP;
+int URL_WKSIDX_PROSPERO;
+int URL_WKSIDX_TELNET;
+int URL_WKSIDX_TUNNEL;
+int URL_WKSIDX_WAIS;
+int URL_WKSIDX_PNM;
+int URL_WKSIDX_RTSP;
+int URL_WKSIDX_RTSPU;
+int URL_WKSIDX_MMS;
+int URL_WKSIDX_MMSU;
+int URL_WKSIDX_MMST;
+
+int URL_LEN_FILE;
+int URL_LEN_FTP;
+int URL_LEN_GOPHER;
+int URL_LEN_HTTP;
+int URL_LEN_HTTPS;
+int URL_LEN_WS;
+int URL_LEN_WSS;
+int URL_LEN_MAILTO;
+int URL_LEN_NEWS;
+int URL_LEN_NNTP;
+int URL_LEN_PROSPERO;
+int URL_LEN_TELNET;
+int URL_LEN_TUNNEL;
+int URL_LEN_WAIS;
+int URL_LEN_PNM;
+int URL_LEN_RTSP;
+int URL_LEN_RTSPU;
+int URL_LEN_MMS;
+int URL_LEN_MMSU;
+int URL_LEN_MMST;
+
+int url_hash_method = 0;
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_init()
+{
+  static int init = 1;
+
+  if (init) {
+    init = 0;
+
+    hdrtoken_init();
+
+    URL_SCHEME_FILE = hdrtoken_string_to_wks("file");
+    URL_SCHEME_FTP = hdrtoken_string_to_wks("ftp");
+    URL_SCHEME_GOPHER = hdrtoken_string_to_wks("gopher");
+    URL_SCHEME_HTTP = hdrtoken_string_to_wks("http");
+    URL_SCHEME_HTTPS = hdrtoken_string_to_wks("https");
+    URL_SCHEME_WSS = hdrtoken_string_to_wks("wss");
+    URL_SCHEME_WS = hdrtoken_string_to_wks("ws");
+    URL_SCHEME_MAILTO = hdrtoken_string_to_wks("mailto");
+    URL_SCHEME_NEWS = hdrtoken_string_to_wks("news");
+    URL_SCHEME_NNTP = hdrtoken_string_to_wks("nntp");
+    URL_SCHEME_PROSPERO = hdrtoken_string_to_wks("prospero");
+    URL_SCHEME_TELNET = hdrtoken_string_to_wks("telnet");
+    URL_SCHEME_TUNNEL = hdrtoken_string_to_wks("tunnel");
+    URL_SCHEME_WAIS = hdrtoken_string_to_wks("wais");
+    URL_SCHEME_PNM = hdrtoken_string_to_wks("pnm");
+    URL_SCHEME_RTSP = hdrtoken_string_to_wks("rtsp");
+    URL_SCHEME_RTSPU = hdrtoken_string_to_wks("rtspu");
+    URL_SCHEME_MMS = hdrtoken_string_to_wks("mms");
+    URL_SCHEME_MMSU = hdrtoken_string_to_wks("mmsu");
+    URL_SCHEME_MMST = hdrtoken_string_to_wks("mmst");
+    
+    ink_assert(URL_SCHEME_FILE && 
+      URL_SCHEME_FTP &&
+      URL_SCHEME_GOPHER && 
+      URL_SCHEME_HTTP && 
+      URL_SCHEME_HTTPS && 
+      URL_SCHEME_WS &&
+      URL_SCHEME_WSS &&
+      URL_SCHEME_MAILTO && 
+      URL_SCHEME_NEWS && 
+      URL_SCHEME_NNTP && 
+      URL_SCHEME_PROSPERO && 
+      URL_SCHEME_TELNET &&
+      URL_SCHEME_TUNNEL &&
+      URL_SCHEME_WAIS &&
+      URL_SCHEME_PNM &&
+      URL_SCHEME_RTSP && 
+      URL_SCHEME_RTSPU && 
+      URL_SCHEME_MMS &&
+      URL_SCHEME_MMSU && 
+      URL_SCHEME_MMST
+    );
+    
+    URL_WKSIDX_FILE = hdrtoken_wks_to_index(URL_SCHEME_FILE);
+    URL_WKSIDX_FTP = hdrtoken_wks_to_index(URL_SCHEME_FTP);
+    URL_WKSIDX_GOPHER = hdrtoken_wks_to_index(URL_SCHEME_GOPHER);
+    URL_WKSIDX_HTTP = hdrtoken_wks_to_index(URL_SCHEME_HTTP);
+    URL_WKSIDX_HTTPS = hdrtoken_wks_to_index(URL_SCHEME_HTTPS);
+    URL_WKSIDX_WS = hdrtoken_wks_to_index(URL_SCHEME_WS);
+    URL_WKSIDX_WSS = hdrtoken_wks_to_index(URL_SCHEME_WSS);
+    URL_WKSIDX_MAILTO = hdrtoken_wks_to_index(URL_SCHEME_MAILTO);
+    URL_WKSIDX_NEWS = hdrtoken_wks_to_index(URL_SCHEME_NEWS);
+    URL_WKSIDX_NNTP = hdrtoken_wks_to_index(URL_SCHEME_NNTP);
+    URL_WKSIDX_PROSPERO = hdrtoken_wks_to_index(URL_SCHEME_PROSPERO);
+    URL_WKSIDX_TELNET = hdrtoken_wks_to_index(URL_SCHEME_TELNET);
+    URL_WKSIDX_TUNNEL = hdrtoken_wks_to_index(URL_SCHEME_TUNNEL);
+    URL_WKSIDX_WAIS = hdrtoken_wks_to_index(URL_SCHEME_WAIS);
+    URL_WKSIDX_PNM = hdrtoken_wks_to_index(URL_SCHEME_PNM);
+    URL_WKSIDX_RTSP = hdrtoken_wks_to_index(URL_SCHEME_RTSP);
+    URL_WKSIDX_RTSPU = hdrtoken_wks_to_index(URL_SCHEME_RTSPU);
+    URL_WKSIDX_MMS = hdrtoken_wks_to_index(URL_SCHEME_MMS);
+    URL_WKSIDX_MMSU = hdrtoken_wks_to_index(URL_SCHEME_MMSU);
+    URL_WKSIDX_MMST = hdrtoken_wks_to_index(URL_SCHEME_MMST);
+
+    URL_LEN_FILE = hdrtoken_wks_to_length(URL_SCHEME_FILE);
+    URL_LEN_FTP = hdrtoken_wks_to_length(URL_SCHEME_FTP);
+    URL_LEN_GOPHER = hdrtoken_wks_to_length(URL_SCHEME_GOPHER);
+    URL_LEN_HTTP = hdrtoken_wks_to_length(URL_SCHEME_HTTP);
+    URL_LEN_HTTPS = hdrtoken_wks_to_length(URL_SCHEME_HTTPS);
+    URL_LEN_WS = hdrtoken_wks_to_length(URL_SCHEME_WS);
+    URL_LEN_WSS = hdrtoken_wks_to_length(URL_SCHEME_WSS);
+    URL_LEN_MAILTO = hdrtoken_wks_to_length(URL_SCHEME_MAILTO);
+    URL_LEN_NEWS = hdrtoken_wks_to_length(URL_SCHEME_NEWS);
+    URL_LEN_NNTP = hdrtoken_wks_to_length(URL_SCHEME_NNTP);
+    URL_LEN_PROSPERO = hdrtoken_wks_to_length(URL_SCHEME_PROSPERO);
+    URL_LEN_TELNET = hdrtoken_wks_to_length(URL_SCHEME_TELNET);
+    URL_LEN_TUNNEL = hdrtoken_wks_to_length(URL_SCHEME_TUNNEL);
+    URL_LEN_WAIS = hdrtoken_wks_to_length(URL_SCHEME_WAIS);
+    URL_LEN_PNM = hdrtoken_wks_to_length(URL_SCHEME_PNM);
+    URL_LEN_RTSP = hdrtoken_wks_to_length(URL_SCHEME_RTSP);
+    URL_LEN_RTSPU = hdrtoken_wks_to_length(URL_SCHEME_RTSPU);
+    URL_LEN_MMS = hdrtoken_wks_to_length(URL_SCHEME_MMS);
+    URL_LEN_MMSU = hdrtoken_wks_to_length(URL_SCHEME_MMSU);
+    URL_LEN_MMST = hdrtoken_wks_to_length(URL_SCHEME_MMST);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *             U R L    C R E A T I O N    A N D    C O P Y            *
+ *                                                                     *
+ ***********************************************************************/
+
+URLImpl *
+url_create(HdrHeap * heap)
+{
+  URLImpl *url;
+
+  url = (URLImpl *) heap->allocate_obj(sizeof(URLImpl), HDR_HEAP_OBJ_URL);
+  obj_clear_data((HdrHeapObjImpl *) url);
+  url->m_url_type = URL_TYPE_NONE;
+  url->m_scheme_wks_idx = -1;
+  url_clear_string_ref(url);
+  return url;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_clear(URLImpl * url_impl)
+{
+  obj_clear_data((HdrHeapObjImpl *) url_impl);
+  url_impl->m_url_type = URL_TYPE_NONE;
+  url_impl->m_scheme_wks_idx = -1;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+URLImpl *
+url_copy(URLImpl * s_url, HdrHeap * s_heap, HdrHeap * d_heap, bool inherit_strs)
+{
+  URLImpl *d_url = url_create(d_heap);
+  url_copy_onto(s_url, s_heap, d_url, d_heap, inherit_strs);
+  return d_url;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_copy_onto(URLImpl * s_url, HdrHeap * s_heap, URLImpl * d_url, HdrHeap * d_heap, bool inherit_strs)
+{
+  if (s_url != d_url) {
+    obj_copy_data((HdrHeapObjImpl *) s_url, (HdrHeapObjImpl *) d_url);
+    if (inherit_strs && (s_heap != d_heap))
+      d_heap->inherit_string_heaps(s_heap);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_nuke_proxy_stuff(URLImpl * d_url)
+{
+  d_url->m_len_scheme = 0;
+  d_url->m_len_user = 0;
+  d_url->m_len_password = 0;
+  d_url->m_len_host = 0;
+  d_url->m_len_port = 0;
+
+  d_url->m_ptr_scheme = NULL;
+  d_url->m_ptr_user = NULL;
+  d_url->m_ptr_password = NULL;
+  d_url->m_ptr_host = NULL;
+  d_url->m_ptr_port = NULL;
+
+  d_url->m_scheme_wks_idx = -1;
+  d_url->m_port = 0;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/**
+  This routine is like url_copy_onto, but clears the
+  scheme/host/user/pass/port components, resulting in a server-style URL.
+
+*/
+void
+url_copy_onto_as_server_url(URLImpl * s_url, HdrHeap * s_heap, URLImpl * d_url, HdrHeap * d_heap, bool inherit_strs)
+{
+  url_nuke_proxy_stuff(d_url);
+
+  d_url->m_ptr_path = s_url->m_ptr_path;
+  d_url->m_ptr_params = s_url->m_ptr_params;
+  d_url->m_ptr_query = s_url->m_ptr_query;
+  d_url->m_ptr_fragment = s_url->m_ptr_fragment;
+  url_clear_string_ref(d_url);
+
+  d_url->m_len_path = s_url->m_len_path;
+  d_url->m_len_params = s_url->m_len_params;
+  d_url->m_len_query = s_url->m_len_query;
+  d_url->m_len_fragment = s_url->m_len_fragment;
+
+  d_url->m_url_type = s_url->m_url_type;
+  d_url->m_type_code = s_url->m_type_code;
+
+  if (inherit_strs && (s_heap != d_heap))
+    d_heap->inherit_string_heaps(s_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                        M A R S H A L I N G                          *
+ *                                                                     *
+ ***********************************************************************/
+int
+URLImpl::marshal(MarshalXlate * str_xlate, int num_xlate)
+{
+
+  HDR_MARSHAL_STR(m_ptr_scheme, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_user, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_password, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_host, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_port, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_path, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_params, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_query, str_xlate, num_xlate);
+  HDR_MARSHAL_STR(m_ptr_fragment, str_xlate, num_xlate);
+//    HDR_MARSHAL_STR(m_ptr_printed_string, str_xlate, num_xlate);
+  return 0;
+}
+
+void
+URLImpl::unmarshal(intptr_t offset)
+{
+  HDR_UNMARSHAL_STR(m_ptr_scheme, offset);
+  HDR_UNMARSHAL_STR(m_ptr_user, offset);
+  HDR_UNMARSHAL_STR(m_ptr_password, offset);
+  HDR_UNMARSHAL_STR(m_ptr_host, offset);
+  HDR_UNMARSHAL_STR(m_ptr_port, offset);
+  HDR_UNMARSHAL_STR(m_ptr_path, offset);
+  HDR_UNMARSHAL_STR(m_ptr_params, offset);
+  HDR_UNMARSHAL_STR(m_ptr_query, offset);
+  HDR_UNMARSHAL_STR(m_ptr_fragment, offset);
+//    HDR_UNMARSHAL_STR(m_ptr_printed_string, offset);
+}
+
+void
+URLImpl::move_strings(HdrStrHeap * new_heap)
+{
+  HDR_MOVE_STR(m_ptr_scheme, m_len_scheme);
+  HDR_MOVE_STR(m_ptr_user, m_len_user);
+  HDR_MOVE_STR(m_ptr_password, m_len_password);
+  HDR_MOVE_STR(m_ptr_host, m_len_host);
+  HDR_MOVE_STR(m_ptr_port, m_len_port);
+  HDR_MOVE_STR(m_ptr_path, m_len_path);
+  HDR_MOVE_STR(m_ptr_params, m_len_params);
+  HDR_MOVE_STR(m_ptr_query, m_len_query);
+  HDR_MOVE_STR(m_ptr_fragment, m_len_fragment);
+  HDR_MOVE_STR(m_ptr_printed_string, m_len_printed_string);
+}
+
+size_t
+URLImpl::strings_length()
+{
+  size_t ret = 0;
+
+  ret += m_len_scheme;
+  ret += m_len_user;
+  ret += m_len_password;
+  ret += m_len_host;
+  ret += m_len_port;
+  ret += m_len_path;
+  ret += m_len_params;
+  ret += m_len_query;
+  ret += m_len_fragment;
+  ret += m_len_printed_string;
+  return ret;
+}
+
+void
+URLImpl::check_strings(HeapCheck * heaps, int num_heaps)
+{
+  CHECK_STR(m_ptr_scheme, m_len_scheme, heaps, num_heaps);
+  CHECK_STR(m_ptr_user, m_len_user, heaps, num_heaps);
+  CHECK_STR(m_ptr_password, m_len_password, heaps, num_heaps);
+  CHECK_STR(m_ptr_host, m_len_host, heaps, num_heaps);
+  CHECK_STR(m_ptr_port, m_len_port, heaps, num_heaps);
+  CHECK_STR(m_ptr_path, m_len_path, heaps, num_heaps);
+  CHECK_STR(m_ptr_params, m_len_params, heaps, num_heaps);
+  CHECK_STR(m_ptr_query, m_len_query, heaps, num_heaps);
+  CHECK_STR(m_ptr_fragment, m_len_fragment, heaps, num_heaps);
+//    CHECK_STR(m_ptr_printed_string, m_len_printed_string, heaps, num_heaps);
+}
+
+/***********************************************************************
+ *                                                                     *
+ *                               S E T                                 *
+ *                                                                     *
+ ***********************************************************************/
+
+const char *
+url_scheme_set(HdrHeap * heap, URLImpl * url, const char *scheme_str, int scheme_wks_idx, int length, bool copy_string)
+{
+  const char *scheme_wks;
+  url_called_set(url);
+  if (length == 0)
+    scheme_str = NULL;
+
+  mime_str_u16_set(heap, scheme_str, length, &(url->m_ptr_scheme), &(url->m_len_scheme), copy_string);
+
+  url->m_scheme_wks_idx = scheme_wks_idx;
+  if (scheme_wks_idx >= 0)
+    scheme_wks = hdrtoken_index_to_wks(scheme_wks_idx);
+  else
+    scheme_wks = NULL;
+
+  if (scheme_wks == URL_SCHEME_HTTP || scheme_wks == URL_SCHEME_WS)
+    url->m_url_type = URL_TYPE_HTTP;
+  else if (scheme_wks == URL_SCHEME_HTTPS || scheme_wks == URL_SCHEME_WSS)
+    url->m_url_type = URL_TYPE_HTTPS;
+  else
+    url->m_url_type = URL_TYPE_HTTP;
+
+  return scheme_wks;          // tokenized string or NULL if not well known
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_user_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  if (length == 0)
+    value = NULL;
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_user), &(url->m_len_user), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_password_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  if (length == 0)
+    value = NULL;
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_password), &(url->m_len_password), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_host_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  if (length == 0) value = NULL;
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_host), &(url->m_len_host), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_port_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  if (length == 0)
+    value = NULL;
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_port), &(url->m_len_port), copy_string);
+
+  url->m_port = 0;
+  for (int i = 0; i < length; i++) {
+    if (!ParseRules::is_digit(value[i]))
+      break;
+    url->m_port = url->m_port * 10 + (value[i] - '0');
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_port_set(HdrHeap * heap, URLImpl * url, unsigned int port)
+{
+  url_called_set(url);
+  if (port > 0) {
+    char value[6];
+    int length;
+
+    length = ink_fast_itoa(port, value, sizeof(value));
+    mime_str_u16_set(heap, value, length, &(url->m_ptr_port), &(url->m_len_port), true);
+  } else {
+    mime_str_u16_set(heap, NULL, 0, &(url->m_ptr_port), &(url->m_len_port), true);
+  }
+  url->m_port = port;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_path_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  if (length == 0)
+    value = NULL;
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_path), &(url->m_len_path), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+// empties params/query/fragment component
+// url_{params|query|fragment}_set()
+
+void
+url_params_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_params), &(url->m_len_params), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_query_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_query), &(url->m_len_query), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_fragment_set(HdrHeap * heap, URLImpl * url, const char *value, int length, bool copy_string)
+{
+  url_called_set(url);
+  mime_str_u16_set(heap, value, length, &(url->m_ptr_fragment), &(url->m_len_fragment), copy_string);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_type_set(URLImpl * url, unsigned int typecode)
+{
+  url_called_set(url);
+  url->m_type_code = typecode;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                               G E T                                 *
+ *                                                                     *
+ ***********************************************************************/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_called_set(URLImpl * url)
+{
+  url->m_clean = !url->m_ptr_printed_string;
+}
+
+void
+url_clear_string_ref(URLImpl * url)
+{
+  if (url->m_ptr_printed_string) {
+    url->m_len_printed_string = 0;
+    url->m_ptr_printed_string = NULL;
+    url->m_clean = true;
+  }
+  return;
+}
+
+char *
+url_string_get_ref(HdrHeap * heap, URLImpl * url, int *length)
+{
+  if (!url)
+    return NULL;
+
+  if (url->m_ptr_printed_string && url->m_clean) {
+    if (length)
+      *length = url->m_len_printed_string;
+    return (char *) url->m_ptr_printed_string;
+  } else {                      //either not clean or never printed
+    int len = url_length_get(url);
+    char *buf;
+    int index = 0;
+    int offset = 0;
+
+    /* stuff alloc'd here gets gc'd on HdrHeap::destroy() */
+    buf = heap->allocate_str(len + 1);
+    url_print(url, buf, len, &index, &offset);
+    buf[len] = '\0';
+
+    if (length) {
+      *length = len;
+    }
+    url->m_clean = true;          //reset since we have url_print()'ed again
+    url->m_len_printed_string = len;
+    url->m_ptr_printed_string = buf;
+    return buf;
+  }
+}
+
+char *
+url_string_get(URLImpl * url, Arena * arena, int *length, HdrHeap * heap)
+{
+  int len = url_length_get(url);
+  char *buf;
+  char *buf2;
+  int index = 0;
+  int offset = 0;
+
+  buf = arena ? arena->str_alloc(len) : (char *)ats_malloc(len + 1);
+
+  url_print(url, buf, len, &index, &offset);
+  buf[len] = '\0';
+
+  /* see string_get_ref() */
+  if (heap) {
+    buf2 = heap->allocate_str(len + 1);
+    memcpy(buf2, buf, len);
+    buf2[len] = '\0';
+    url->m_clean = true;          //reset since we have url_print()'ed again
+    url->m_len_printed_string = len;
+    url->m_ptr_printed_string = buf2;
+  }
+
+  if (length) {
+    *length = len;
+  }
+  return buf;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+char *
+url_string_get_buf(URLImpl * url, char *dstbuf, int dstbuf_size, int *length)
+{
+  int len = url_length_get(url);
+  int index = 0;
+  int offset = 0;
+  char *buf = 0;
+
+  if (dstbuf && dstbuf_size > 0) {
+    buf = dstbuf;
+    if (len >= dstbuf_size)
+      len = dstbuf_size - 1;
+    url_print(url, dstbuf, len, &index, &offset);
+    buf[len] = 0;
+
+    if (length)
+      *length = len;
+  }
+  return buf;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_scheme_get(URLImpl * url, int *length)
+{
+  const char *str;
+
+  if (url->m_scheme_wks_idx >= 0) {
+    str = hdrtoken_index_to_wks(url->m_scheme_wks_idx);
+    *length = hdrtoken_index_to_length(url->m_scheme_wks_idx);
+  } else {
+    str = url->m_ptr_scheme;
+    *length = url->m_len_scheme;
+  }
+  return str;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_user_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_user;
+  return url->m_ptr_user;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_password_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_password;
+  return url->m_ptr_password;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_host_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_host;
+  return url->m_ptr_host;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+url_port_get(URLImpl * url)
+{
+  return url->m_port;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_path_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_path;
+  return url->m_ptr_path;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_params_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_params;
+  return url->m_ptr_params;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_query_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_query;
+  return url->m_ptr_query;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+const char *
+url_fragment_get(URLImpl * url, int *length)
+{
+  *length = url->m_len_fragment;
+  return url->m_ptr_fragment;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+url_type_get(URLImpl * url)
+{
+  return url->m_type_code;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *               U R L    S T R I N G    F U N C T I O N S             *
+ *                                                                     *
+ ***********************************************************************/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+url_length_get(URLImpl * url)
+{
+  int length = 0;
+
+  if (url->m_ptr_scheme) {
+    if ((url->m_scheme_wks_idx >= 0) && (hdrtoken_index_to_wks(url->m_scheme_wks_idx) == URL_SCHEME_FILE))
+      length += url->m_len_scheme + 1;  // +1 for ":"
+    else
+      length += url->m_len_scheme + 3;  // +3 for "://"
+  }
+
+  if (url->m_ptr_user) {
+    length += url->m_len_user + 1;      // +1 for "@"
+    if (url->m_ptr_password)
+      length += url->m_len_password + 1;        // +1 for ":"
+  }
+
+  if (url->m_ptr_host) {
+    length += url->m_len_host;
+    if (url->m_ptr_port && url->m_port)
+      length += url->m_len_port + 1;    // +1 for ":"
+  }
+
+  if (url->m_ptr_path) {
+    length += url->m_len_path + 1;      // +1 for /
+  }
+  else {
+    length += 1;                // +1 for /
+  }
+
+  if (url->m_ptr_params && url->m_len_params > 0) {
+    length += url->m_len_params + 1;  // +1 for ";"
+  }
+
+  if (url->m_ptr_query && url->m_len_query > 0) {
+    length += url->m_len_query + 1;   // +1 for "?"
+  }
+
+  if (url->m_ptr_fragment && url->m_len_fragment > 0) {
+    length += url->m_len_fragment + 1;        // +1 for "#"
+  }
+
+  return length;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+char *
+url_to_string(URLImpl * url, Arena * arena, int *length)
+{
+  int len;
+  int idx;
+  char *str;
+
+  len = url_length_get(url) + 1;
+
+  if (length)
+    *length = len;
+
+  if (arena)
+    str = arena->str_alloc(len);
+  else
+    str = (char *)ats_malloc(len + 1);
+
+  idx = 0;
+
+  if (url->m_ptr_scheme) {
+    memcpy(&str[idx], url->m_ptr_scheme, url->m_len_scheme);
+    idx += url->m_len_scheme;
+    if ((url->m_scheme_wks_idx >= 0) && (hdrtoken_index_to_wks(url->m_scheme_wks_idx) == URL_SCHEME_FILE)) {
+      str[idx++] = ':';
+    } else {
+      str[idx++] = ':';
+      str[idx++] = '/';
+      str[idx++] = '/';
+    }
+  }
+
+  if (url->m_ptr_user) {
+    memcpy(&str[idx], url->m_ptr_user, url->m_len_user);
+    idx += url->m_len_user;
+    if (url->m_ptr_password) {
+      str[idx++] = ':';
+      memcpy(&str[idx], url->m_ptr_password, url->m_len_password);
+      idx += url->m_len_password;
+    }
+    str[idx++] = '@';
+  }
+
+  if (url->m_ptr_host) {
+    memcpy(&str[idx], url->m_ptr_host, url->m_len_host);
+    idx += url->m_len_host;
+    if (url->m_ptr_port != 0) {
+      str[idx++] = ':';
+      memcpy(&str[idx], url->m_ptr_port, url->m_len_port);
+      idx += url->m_len_port;
+    }
+  }
+
+  memcpy(&str[idx], url->m_ptr_path, url->m_len_path);
+  idx += url->m_len_path;
+
+  if (url->m_ptr_params && url->m_len_params > 0) {
+    str[idx++] = ';';
+    memcpy(&str[idx], url->m_ptr_params, url->m_len_params);
+    idx += url->m_len_params;
+  }
+
+  if (url->m_ptr_query && url->m_len_query > 0) {
+    str[idx++] = '?';
+    memcpy(&str[idx], url->m_ptr_query, url->m_len_query);
+    idx += url->m_len_query;
+  }
+
+  if (url->m_ptr_fragment && url->m_len_fragment > 0) {
+    str[idx++] = '#';
+    memcpy(&str[idx], url->m_ptr_fragment, url->m_len_fragment);
+    idx += url->m_len_fragment;
+  }
+
+  str[idx++] = '\0';
+
+  ink_release_assert(idx == len);
+
+  return str;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                     E S C A P E - H A N D L I N G                   *
+ *                                                                     *
+ ***********************************************************************/
+
+void
+unescape_str(char *&buf, char *buf_e, const char *&str, const char *str_e, int &state)
+{
+  int copy_len;
+  char *first_pct;
+  int buf_len = (int) (buf_e - buf);
+  int str_len = (int) (str_e - str);
+  int min_len = (int) (str_len < buf_len ? str_len : buf_len);
+
+  first_pct = ink_memcpy_until_char(buf, (char *) str, min_len, '%');
+  copy_len = (int) (first_pct - str);
+  str += copy_len;
+  buf += copy_len;
+  if (copy_len == min_len)
+    return;
+
+  while (str < str_e && (buf != buf_e)) {
+    switch (state) {
+    case 0:
+      if (str[0] == '%') {
+        str += 1;
+        state = 1;
+      } else {
+        *buf++ = str[0];
+        str += 1;
+      }
+      break;
+    case 1:
+      if (ParseRules::is_hex(str[0])) {
+        str += 1;
+        state = 2;
+      } else {
+        *buf++ = str[-1];
+        state = 0;
+      }
+      break;
+    case 2:
+      if (ParseRules::is_hex(str[0])) {
+        int tmp;
+
+        if (ParseRules::is_alpha(str[-1])) {
+          tmp = (ParseRules::ink_toupper(str[-1]) - 'A' + 10) * 16;
+        } else {
+          tmp = (str[-1] - '0') * 16;
+        }
+        if (ParseRules::is_alpha(str[0])) {
+          tmp += (ParseRules::ink_toupper(str[0]) - 'A' + 10);
+        } else {
+          tmp += str[0] - '0';
+        }
+
+        *buf++ = tmp;
+        str += 1;
+        state = 0;
+      } else {
+        *buf++ = str[-2];
+        state = 3;
+      }
+      break;
+    case 3:
+      *buf++ = str[-1];
+      state = 0;
+      break;
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+unescape_str_tolower(char *&buf, char *end, const char *&str, const char *str_e, int &state)
+{
+  while (str < str_e && (buf != end)) {
+    switch (state) {
+    case 0:
+      if (str[0] == '%') {
+        str += 1;
+        state = 1;
+      } else {
+        *buf++ = ParseRules::ink_tolower(str[0]);
+        str += 1;
+      }
+      break;
+    case 1:
+      if (ParseRules::is_hex(str[0])) {
+        str += 1;
+        state = 2;
+      } else {
+        *buf++ = ParseRules::ink_tolower(str[-1]);
+        state = 0;
+      }
+      break;
+    case 2:
+      if (ParseRules::is_hex(str[0])) {
+        int tmp;
+
+        if (ParseRules::is_alpha(str[-1])) {
+          tmp = (ParseRules::ink_toupper(str[-1]) - 'A' + 10) * 16;
+        } else {
+          tmp = (str[-1] - '0') * 16;
+        }
+        if (ParseRules::is_alpha(str[0])) {
+          tmp += (ParseRules::ink_toupper(str[0]) - 'A' + 10);
+        } else {
+          tmp += str[0] - '0';
+        }
+
+        *buf++ = tmp;
+        str += 1;
+        state = 0;
+      } else {
+        *buf++ = ParseRules::ink_tolower(str[-2]);
+        state = 3;
+      }
+      break;
+    case 3:
+      *buf++ = ParseRules::ink_tolower(str[-1]);
+      state = 0;
+      break;
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+char *
+url_unescapify(Arena * arena, const char *str, int length)
+{
+  char *buffer;
+  char *t, *e;
+  int s;
+
+  if (length == -1)
+    length = (int) strlen(str);
+
+  buffer = arena->str_alloc(length);
+  t = buffer;
+  e = buffer + length;
+  s = 0;
+
+  unescape_str(t, e, str, str + length, s);
+  *t = '\0';
+
+  return buffer;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                            P A R S I N G                            *
+ *                                                                     *
+ ***********************************************************************/
+
+#define GETNEXT(label) { \
+    cur += 1;            \
+    if (cur >= end) {    \
+        goto label;      \
+    }                    \
+}
+
+MIMEParseResult
+url_parse_scheme(HdrHeap * heap, URLImpl * url, const char **start, const char *end, bool copy_strings_p)
+{
+  const char *cur = *start;
+  const char *scheme_wks;
+  const char *scheme_start = NULL;
+  const char *scheme_end = NULL;
+  int scheme_wks_idx;
+
+  while(' ' == *cur && ++cur < end)
+    ;
+  if (cur < end) {
+    scheme_start = scheme_end = cur;
+    // special case 'http:' for performance
+    if ((end - cur >= 5) && (((cur[0] ^ 'h') | (cur[1] ^ 't') | (cur[2] ^ 't') | (cur[3] ^ 'p') | (cur[4] ^ ':')) == 0)) {
+      scheme_end = cur + 4;                   // point to colon
+      url_scheme_set(heap, url, scheme_start, URL_WKSIDX_HTTP, 4, copy_strings_p);
+    } else if ('/' != *cur) {
+      // For forward transparent mode, the URL for the method can just be a path,
+      // so don't scan that for a scheme, as we could find a false positive if there
+      // is a URL in the parameters (which is legal).
+      while (':' != *cur && ++cur < end)
+        ;
+      if (cur < end) { // found a colon
+        scheme_wks_idx = hdrtoken_tokenize(scheme_start, cur - scheme_start, &scheme_wks);
+    
+        /*  Distinguish between a scheme only and a username by looking past the colon. If it is missing
+            or it's a slash, presume scheme. Otherwise it's a username with a password.
+        */
+        if ((scheme_wks_idx > 0 && hdrtoken_wks_to_token_type(scheme_wks) == HDRTOKEN_TYPE_SCHEME) || // known scheme
+           (cur >= end-1 || cur[1] == '/')) // no more data or slash past colon
+        {
+          scheme_end = cur;
+          url_scheme_set(heap, url, scheme_start, scheme_wks_idx, scheme_end - scheme_start, copy_strings_p);
+        }
+      }
+    }
+    *start = scheme_end;
+    return PARSE_CONT;
+  }
+  return PARSE_ERROR; // no non-whitespace found
+}
+
+MIMEParseResult
+url_parse(HdrHeap * heap, URLImpl * url, const char **start, const char *end, bool copy_strings_p)
+{
+  MIMEParseResult zret = url_parse_scheme(heap, url, start, end, copy_strings_p);
+  return PARSE_CONT == zret ? url_parse_http(heap, url, start, end, copy_strings_p) : zret;
+}
+
+MIMEParseResult
+url_parse_no_path_component_breakdown(HdrHeap * heap, URLImpl * url, const char **start, const char *end, bool copy_strings_p)
+{
+  MIMEParseResult zret = url_parse_scheme(heap, url, start, end, copy_strings_p);
+  return PARSE_CONT == zret ? url_parse_http_no_path_component_breakdown(heap, url, start, end, copy_strings_p) : zret;
+}
+
+/**
+  Parse internet URL.
+
+  @verbatim
+  [://][user[:password]@]host[:port]
+
+  some.place/
+  some.place:80/
+  foo@some.place:80/
+  foo:bar@some.place:80/
+  foo:bar@some.place/
+  foo:42@some.place/
+  @endverbatim
+
+*/
+
+MIMEParseResult
+url_parse_internet(HdrHeap* heap, URLImpl* url,
+                       char const ** start, char const *end,
+                       bool copy_strings_p)
+{
+  char const* cur = *start;
+  char const* base; // Base for host/port field.
+  char const* bracket = 0; // marker for open bracket, if any.
+  ts::ConstBuffer user(0), passw(0), host(0), port(0);
+  static size_t const MAX_COLON = 8; // max # of valid colons.
+  size_t n_colon = 0;
+  char const* last_colon = 0; // pointer to last colon seen.
+
+  // Do a quick check for "://"
+  if (end - cur > 3 &&
+      (((':' ^ *cur) | ('/' ^ cur[1]) | ('/' ^ cur[2])) == 0)) {
+    cur += 3;
+  } else if (':' == *cur && (++cur >= end ||
+                             ('/' == *cur && (++cur >= end ||
+                                              ('/' == *cur && ++cur >= end))))) {
+    return PARSE_ERROR;
+  }
+  base = cur;
+  // skipped leading stuff, start real parsing.
+  while (cur < end) {
+    // Note: Each case is responsible for incrementing @a cur if
+    // appropriate!
+    switch (*cur) {
+    case ']' : // address close
+      if (0 == bracket || n_colon >= MAX_COLON)
+        return PARSE_ERROR;
+      ++cur;
+      /* We keep the brackets because there are too many other places
+         that depend on them and it's too painful to keep track if
+         they should be used. I thought about being clever with
+         stripping brackets from non-IPv6 content but that gets ugly
+         as well. Just not worth it.
+       */
+      host.set(bracket, cur);
+      // Spec requires This constitute the entire host so the next
+      // character must be missing (EOS), slash, or colon.
+      if (cur >= end || '/' == *cur) { // done which is OK
+        last_colon = 0;
+        break;
+      } else if (':' != *cur) { // otherwise it must be a colon
+        return PARSE_ERROR;
+      }
+      /* We want to prevent more than 1 colon following so we set @a
+         n_colon appropriately.
+      */
+      n_colon = MAX_COLON - 1;
+      // FALL THROUGH
+    case ':' : // track colons, fail if too many.
+      if (++n_colon > MAX_COLON)
+        return PARSE_ERROR;
+      last_colon = cur;
+      ++cur;
+      break;
+    case '@' : // user/password marker.
+      if (user || n_colon > 1)
+        return PARSE_ERROR; // we already got one, or too many colons.
+      if (n_colon) {
+        user.set(base, last_colon);
+        passw.set(last_colon+1, cur);
+        n_colon= 0;
+        last_colon = 0;
+      } else {
+        user.set(base, cur);
+      }
+      ++cur;
+      base = cur;
+      break;
+    case '[' : // address open
+      if (bracket || base != cur) // must be first char in field
+        return PARSE_ERROR;
+      bracket = cur; // location and flag.
+      ++cur;
+      break;
+    case '/' : // we're done with this phase.
+      end = cur; // cause loop exit
+      break;
+    default:
+      ++cur;
+      break;
+    };
+  }
+  // Time to pick up the pieces. At this pointer cur._ptr is the first
+  // character past the parse area.
+
+  if (user) {
+    url_user_set(heap, url, user._ptr, user._size, copy_strings_p);
+    if (passw)
+      url_password_set(heap, url, passw._ptr, passw._size, copy_strings_p);
+  }
+
+  // @a host not set means no brackets to mark explicit host.
+  if (!host) {
+    if (1 == n_colon || MAX_COLON == n_colon) { // presume port.
+      host.set(base, last_colon);
+    } else { // it's all host.
+      host.set(base, cur);
+      last_colon = 0; // prevent port setting.
+    }
+  }
+  if (host._size)
+    url_host_set(heap, url, host._ptr, host._size, copy_strings_p);
+  
+  if (last_colon) {
+    ink_assert(n_colon);
+    port.set(last_colon+1, cur);
+    if (!port._size)
+      return PARSE_ERROR; // colon w/o port value.
+    url_port_set(heap, url, port._ptr, port._size, copy_strings_p);
+  }
+  if ('/' == *cur) ++cur; // must do this after filling in host/port.
+  *start = cur;
+  return PARSE_DONE;
+}
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+// empties params/query/fragment component
+
+MIMEParseResult
+url_parse_http(HdrHeap * heap, URLImpl * url, const char **start, const char *end, bool copy_strings)
+{
+  MIMEParseResult err;
+  const char *cur;
+  const char *path_start = NULL;
+  const char *path_end = NULL;
+  const char *params_start = NULL;
+  const char *params_end = NULL;
+  const char *query_start = NULL;
+  const char *query_end = NULL;
+  const char *fragment_start = NULL;
+  const char *fragment_end = NULL;
+  char mask;
+
+  err = url_parse_internet(heap, url, start, end, copy_strings);
+  if (err < 0)
+    return err;
+
+  cur = *start;
+  if (*start == end)
+    goto done;
+
+  path_start = cur;
+  mask = ';' & '?' & '#';
+parse_path2:
+  if ((*cur & mask) == mask) {
+    if (*cur == ';') {
+      path_end = cur;
+      goto parse_params1;
+    }
+    if (*cur == '?') {
+      path_end = cur;
+      goto parse_query1;
+    }
+    if (*cur == '#') {
+      path_end = cur;
+      goto parse_fragment1;
+    }
+  } else {
+    ink_assert((*cur != ';') && (*cur != '?') && (*cur != '#'));
+  }
+  GETNEXT(done);
+  goto parse_path2;
+
+parse_params1:
+  params_start = cur + 1;
+  GETNEXT(done);
+parse_params2:
+  if (*cur == '?') {
+    params_end = cur;
+    goto parse_query1;
+  }
+  if (*cur == '#') {
+    params_end = cur;
+    goto parse_fragment1;
+  }
+  GETNEXT(done);
+  goto parse_params2;
+
+parse_query1:
+  query_start = cur + 1;
+  GETNEXT(done);
+parse_query2:
+  if (*cur == '#') {
+    query_end = cur;
+    goto parse_fragment1;
+  }
+  GETNEXT(done);
+  goto parse_query2;
+
+parse_fragment1:
+  fragment_start = cur + 1;
+  GETNEXT(done);
+  fragment_end = end;
+
+done:
+  if (path_start) {
+    if (!path_end)
+      path_end = cur;
+    url_path_set(heap, url, path_start, path_end - path_start, copy_strings);
+  }
+  if (params_start) {
+    if (!params_end)
+      params_end = cur;
+    url_params_set(heap, url, params_start, params_end - params_start, copy_strings);
+  }
+  if (query_start) {
+    if (!query_end)
+      query_end = cur;
+    url_query_set(heap, url, query_start, query_end - query_start, copy_strings);
+  }
+  if (fragment_start) {
+    if (!fragment_end)
+      fragment_end = cur;
+    url_fragment_set(heap, url, fragment_start, fragment_end - fragment_start, copy_strings);
+  }
+
+  *start = cur;
+  return PARSE_DONE;
+}
+
+MIMEParseResult
+url_parse_http_no_path_component_breakdown(HdrHeap * heap,
+                                           URLImpl * url, const char **start, const char *end, bool copy_strings)
+{
+  const char *cur = *start;
+  char const* host_end;
+
+  // Do a quick check for "://" - our only format check.
+  if (end - cur > 3 &&
+      (((':' ^ *cur) | ('/' ^ cur[1]) | ('/' ^ cur[2])) == 0)) {
+    cur += 3;
+  } else if (':' == *cur && (++cur >= end ||
+                             ('/' == *cur && (++cur >= end ||
+                                              ('/' == *cur && ++cur >= end))))) {
+    return PARSE_ERROR;
+  }
+
+  // Grab everything until EOS or slash.
+  char const* base = cur;
+  cur = static_cast<char const*>(memchr(cur, '/', end - cur));
+  if (cur) {
+    host_end = cur;
+    ++cur;
+  } else {
+    host_end = cur = end;
+  }
+
+  // Did we find something for the host?
+  if (base != host_end) {
+    char const* port = 0;
+    int port_len = 0;
+
+    // Check for port. Search from the end stopping on the first non-digit
+    // or more than 5 digits and a delimiter.
+    port = host_end - 1;
+    char const* port_limit = host_end - 6;
+    if (port_limit < base) port_limit = base; // don't go past start.
+    while (port >= port_limit && isdigit(*port))
+      --port;
+    // A port if we're still in the host area and we found a ':' as
+    // the immediately preceeding character.
+    if (port >= base && ':' == *port) {
+      port_len = host_end - port - 1; // must compute this first.
+      host_end = port; // then point at colon.
+      ++port; // drop colon from port.
+      url_port_set(heap, url, port, port_len, copy_strings);
+    }
+    // Now we can set the host.
+    url_host_set(heap, url, base, host_end - base, copy_strings);
+  }
+
+  // path is anything that's left.
+  if (cur < end) {
+    url_path_set(heap, url, cur, end - cur, copy_strings);
+    cur = end;
+  }
+  *start = cur;
+  return PARSE_DONE;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                           P R I N T I N G                           *
+ *                                                                     *
+ ***********************************************************************/
+
+int
+url_print(URLImpl * url, char *buf_start, int buf_length, int *buf_index_inout, int *buf_chars_to_skip_inout)
+{
+#define TRY(x)  if (!x) return 0
+
+  if (url->m_ptr_scheme) {
+    TRY(mime_mem_print(url->m_ptr_scheme, url->m_len_scheme,
+                       buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    // [amc] Why is "file:" special cased to be wrong?
+//    if ((url->m_scheme_wks_idx >= 0) && (hdrtoken_index_to_wks(url->m_scheme_wks_idx) == URL_SCHEME_FILE)) {
+//      TRY(mime_mem_print(":", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+//    } else {
+      TRY(mime_mem_print("://", 3, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+//    }
+  }
+
+  if (url->m_ptr_user) {
+    TRY(mime_mem_print(url->m_ptr_user, url->m_len_user,
+                       buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    if (url->m_ptr_password) {
+      TRY(mime_mem_print(":", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+      TRY(mime_mem_print(url->m_ptr_password, url->m_len_password,
+                         buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    }
+    TRY(mime_mem_print("@", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+  }
+
+  if (url->m_ptr_host) {
+    // Force brackets for IPv6. Note colon must occur in first 5 characters.
+    // But it can be less (e.g. "::1").
+    int n = url->m_len_host;
+    bool bracket_p = '[' != *url->m_ptr_host && (0 != memchr(url->m_ptr_host, ':', n > 5 ? 5 : n));
+    if (bracket_p)
+      TRY(mime_mem_print("[", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    TRY(mime_mem_print(url->m_ptr_host, url->m_len_host,
+                       buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    if (bracket_p)
+      TRY(mime_mem_print("]", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    if (url->m_ptr_port && url->m_port) {
+      TRY(mime_mem_print(":", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+      TRY(mime_mem_print(url->m_ptr_port, url->m_len_port,
+                         buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    }
+  }
+
+  TRY(mime_mem_print("/", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+
+  if (url->m_ptr_path) {
+    TRY(mime_mem_print(url->m_ptr_path, url->m_len_path, buf_start,
+                       buf_length, buf_index_inout, buf_chars_to_skip_inout));
+  }
+
+  if (url->m_ptr_params && url->m_len_params > 0) {
+    TRY(mime_mem_print(";", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    TRY(mime_mem_print(url->m_ptr_params, url->m_len_params,
+                       buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+  }
+
+  if (url->m_ptr_query && url->m_len_query > 0) {
+    TRY(mime_mem_print("?", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    TRY(mime_mem_print(url->m_ptr_query, url->m_len_query,
+                       buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+  }
+
+  if (url->m_ptr_fragment && url->m_len_fragment > 0) {
+    TRY(mime_mem_print("#", 1, buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+    TRY(mime_mem_print(url->m_ptr_fragment, url->m_len_fragment,
+                       buf_start, buf_length, buf_index_inout, buf_chars_to_skip_inout));
+  }
+
+  return 1;
+
+#undef TRY
+}
+
+void
+url_describe(HdrHeapObjImpl * raw, bool /* recurse ATS_UNUSED */)
+{
+  URLImpl *obj = (URLImpl *) raw;
+
+  Debug("http", "[URLTYPE: %d, SWKSIDX: %d,\n", obj->m_url_type, obj->m_scheme_wks_idx);
+  Debug("http", "\tSCHEME: \"%.*s\", SCHEME_LEN: %d,\n",
+        obj->m_len_scheme, (obj->m_ptr_scheme ? obj->m_ptr_scheme : "NULL"), obj->m_len_scheme);
+  Debug("http", "\tUSER: \"%.*s\", USER_LEN: %d,\n",
+        obj->m_len_user, (obj->m_ptr_user ? obj->m_ptr_user : "NULL"), obj->m_len_user);
+  Debug("http", "\tPASSWORD: \"%.*s\", PASSWORD_LEN: %d,\n",
+        obj->m_len_password, (obj->m_ptr_password ? obj->m_ptr_password : "NULL"), obj->m_len_password);
+  Debug("http", "\tHOST: \"%.*s\", HOST_LEN: %d,\n",
+        obj->m_len_host, (obj->m_ptr_host ? obj->m_ptr_host : "NULL"), obj->m_len_host);
+  Debug("http", "\tPORT: \"%.*s\", PORT_LEN: %d, PORT_NUM: %d\n",
+        obj->m_len_port, (obj->m_ptr_port ? obj->m_ptr_port : "NULL"), obj->m_len_port, obj->m_port);
+  Debug("http", "\tPATH: \"%.*s\", PATH_LEN: %d,\n",
+        obj->m_len_path, (obj->m_ptr_path ? obj->m_ptr_path : "NULL"), obj->m_len_path);
+  Debug("http", "\tPARAMS: \"%.*s\", PARAMS_LEN: %d,\n",
+        obj->m_len_params, (obj->m_ptr_params ? obj->m_ptr_params : "NULL"), obj->m_len_params);
+  Debug("http", "\tQUERY: \"%.*s\", QUERY_LEN: %d,\n",
+        obj->m_len_query, (obj->m_ptr_query ? obj->m_ptr_query : "NULL"), obj->m_len_query);
+  Debug("http", "\tFRAGMENT: \"%.*s\", FRAGMENT_LEN: %d]\n",
+        obj->m_len_fragment, (obj->m_ptr_fragment ? obj->m_ptr_fragment : "NULL"), obj->m_len_fragment);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+/***********************************************************************
+ *                                                                     *
+ *                        U R L    D I G E S T S                       *
+ *                                                                     *
+ ***********************************************************************/
+
+static inline void
+memcpy_tolower(char *d, const char *s, int n)
+{
+  while (n--) {
+    *d = ParseRules::ink_tolower(*s);
+    s++;
+    d++;
+  }
+}
+
+
+#define BUFSIZE 512
+
+// fast path for MD5, HTTP, no user/password/params/query,
+// no buffer overflow, no unescaping needed
+
+static inline void
+url_MD5_get_fast(URLImpl * url, INK_MD5 * md5)
+{
+  INK_DIGEST_CTX md5_ctx;
+  char buffer[BUFSIZE];
+  char *p;
+
+  ink_code_incr_md5_init(&md5_ctx);
+
+  p = buffer;
+  memcpy_tolower(p, url->m_ptr_scheme, url->m_len_scheme);
+  p += url->m_len_scheme;
+  *p++ = ':';
+  *p++ = '/';
+  *p++ = '/';
+  // no user
+  *p++ = ':';
+  // no password
+  *p++ = '@';
+  memcpy_tolower(p, url->m_ptr_host, url->m_len_host);
+  p += url->m_len_host;
+  *p++ = '/';
+  memcpy(p, url->m_ptr_path, url->m_len_path);
+  p += url->m_len_path;
+  *p++ = ';';
+  // no params
+  *p++ = '?';
+  // no query
+
+  ink_assert(sizeof(url->m_port) == 2);
+  uint16_t port = (uint16_t) url_canonicalize_port(url->m_url_type, url->m_port);
+  *p++ = ((char *) &port)[0];
+  *p++ = ((char *) &port)[1];
+
+  ink_code_incr_md5_update(&md5_ctx, buffer, p - buffer);
+  ink_code_incr_md5_final((char *) md5, &md5_ctx);
+}
+
+
+static inline void
+url_MD5_get_general(URLImpl * url, INK_MD5 * md5)
+{
+  INK_DIGEST_CTX md5_ctx;
+
+  char buffer[BUFSIZE];
+  char *p, *e;
+  const char *strs[13], *ends[13];
+  const char *t;
+  uint16_t port;
+  int i, s;
+
+  strs[0] = url->m_ptr_scheme;
+  strs[1] = "://";
+  strs[2] = url->m_ptr_user;
+  strs[3] = ":";
+  strs[4] = url->m_ptr_password;
+  strs[5] = "@";
+  strs[6] = url->m_ptr_host;
+  strs[7] = "/";
+  strs[8] = url->m_ptr_path;
+
+  ends[0] = strs[0] + url->m_len_scheme;
+  ends[1] = strs[1] + 3;
+  ends[2] = strs[2] + url->m_len_user;
+  ends[3] = strs[3] + 1;
+  ends[4] = strs[4] + url->m_len_password;
+  ends[5] = strs[5] + 1;
+  ends[6] = strs[6] + url->m_len_host;
+  ends[7] = strs[7] + 1;
+  ends[8] = strs[8] + url->m_len_path;
+
+  strs[9] = ";";
+  strs[10] = url->m_ptr_params;
+  strs[11] = "?";
+  strs[12] = url->m_ptr_query;
+  ends[9] = strs[9] + 1;
+  ends[10] = strs[10] + url->m_len_params;
+  ends[11] = strs[11] + 1;
+  ends[12] = strs[12] + url->m_len_query;
+
+  p = buffer;
+  e = buffer + BUFSIZE;
+
+  ink_code_incr_md5_init(&md5_ctx);
+
+  for (i = 0; i < 13; i++) {
+    if (strs[i]) {
+      t = strs[i];
+      s = 0;
+
+      while (t < ends[i]) {
+        if ((i == 0) || (i == 6)) {           // scheme and host
+          unescape_str_tolower(p, e, t, ends[i], s);
+        } else {
+          unescape_str(p, e, t, ends[i], s);
+        }
+
+        if (p == e) {
+	  ink_code_incr_md5_update(&md5_ctx, buffer, BUFSIZE);
+          p = buffer;
+        }
+      }
+    }
+  }
+
+  if (p != buffer) {
+    ink_code_incr_md5_update(&md5_ctx, buffer, p - buffer);
+  }
+
+  port = url_canonicalize_port(url->m_url_type, url->m_port);
+
+  ink_code_incr_md5_update(&md5_ctx, (char *) &port, sizeof(port));
+  ink_code_incr_md5_final((char *) md5, &md5_ctx);
+}
+
+
+
+
+void
+url_MD5_get(URLImpl * url, INK_MD5 * md5)
+{
+  if ((url_hash_method != 0) &&
+      (url->m_url_type == URL_TYPE_HTTP) &&
+      ((url->m_len_user + url->m_len_password + url->m_len_params + url->m_len_query) == 0) &&
+      (3 + 1 + 1 + 1 + 1 + 1 + 2 +
+       url->m_len_scheme +
+       url->m_len_host +
+       url->m_len_path < BUFSIZE) &&
+      (memchr(url->m_ptr_host, '%', url->m_len_host) == NULL) &&
+      (memchr(url->m_ptr_path, '%', url->m_len_path) == NULL)) {
+    url_MD5_get_fast(url, md5);
+
+#ifdef DEBUG
+    INK_MD5 md5_general;
+    url_MD5_get_general(url, &md5_general);
+    ink_assert(*md5 == md5_general);
+#endif
+  } else {
+    url_MD5_get_general(url, md5);
+  }
+}
+
+#undef BUFSIZE
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+url_host_MD5_get(URLImpl * url, INK_MD5 * md5)
+{
+  INK_DIGEST_CTX md5_ctx;
+
+  ink_code_incr_md5_init(&md5_ctx);
+
+  if (url->m_ptr_scheme) {
+    ink_code_incr_md5_update(&md5_ctx, url->m_ptr_scheme, url->m_len_scheme);
+  }
+
+  ink_code_incr_md5_update(&md5_ctx, "://", 3);
+
+  if (url->m_ptr_host) {
+    ink_code_incr_md5_update(&md5_ctx, url->m_ptr_host, url->m_len_host);
+  }
+
+  ink_code_incr_md5_update(&md5_ctx, ":", 1);
+
+  int port = url_canonicalize_port(url->m_url_type, url->m_port);
+  ink_code_incr_md5_update(&md5_ctx, (char *) &port, sizeof(port));
+  ink_code_incr_md5_final((char *) md5, &md5_ctx);
+}
diff --git a/proxy/hdrs/URL.h b/proxy/hdrs/URL.h
new file mode 100644
index 00000000..0a6cd814
--- /dev/null
+++ b/proxy/hdrs/URL.h
@@ -0,0 +1,736 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __URL_H__
+#define __URL_H__
+
+#include "Arena.h"
+#include "HdrToken.h"
+#include "HdrHeap.h"
+#include "INK_MD5.h"
+#include "MIME.h"
+
+#include "ink_apidefs.h"
+
+enum URLType
+{
+  URL_TYPE_NONE,
+  URL_TYPE_HTTP,
+  URL_TYPE_HTTPS
+};
+
+struct URLImpl:public HdrHeapObjImpl
+{
+  // HdrHeapObjImpl is 4 bytes
+  uint16_t m_len_scheme;
+  uint16_t m_len_user;
+  uint16_t m_len_password;
+  uint16_t m_len_host;
+  uint16_t m_len_port;
+  uint16_t m_len_path;
+  uint16_t m_len_params;
+  uint16_t m_len_query;
+  uint16_t m_len_fragment;
+  uint16_t m_len_printed_string;
+  // 4 + 20 byte = 24, 8 bytes aligned
+
+  const char *m_ptr_scheme;
+  const char *m_ptr_user;
+  const char *m_ptr_password;
+  const char *m_ptr_host;
+  const char *m_ptr_port;
+  const char *m_ptr_path;
+  const char *m_ptr_params;
+  const char *m_ptr_query;
+  const char *m_ptr_fragment;
+  const char *m_ptr_printed_string;
+  // pointer aligned (4 or 8)
+
+  // Tokenized values
+  int16_t m_scheme_wks_idx;
+  uint16_t m_port;
+  uint8_t m_url_type;             // e.g. HTTP
+  uint8_t m_type_code;            // RFC 1738 limits type code to 1 char
+  // 6 bytes
+
+  uint32_t m_clean:1;
+  // 8 bytes + 1 bit, will result in padding
+
+  // Marshaling Functions
+  int marshal(MarshalXlate *str_xlate, int num_xlate);
+  void unmarshal(intptr_t offset);
+  void move_strings(HdrStrHeap *new_heap);
+  size_t strings_length();
+
+  // Sanity Check Functions
+  void check_strings(HeapCheck *heaps, int num_heaps);
+};
+
+
+extern const char *URL_SCHEME_FILE;
+extern const char *URL_SCHEME_FTP;
+extern const char *URL_SCHEME_GOPHER;
+extern const char *URL_SCHEME_HTTP;
+extern const char *URL_SCHEME_HTTPS;
+extern const char *URL_SCHEME_WS;
+extern const char *URL_SCHEME_WSS;
+extern const char *URL_SCHEME_MAILTO;
+extern const char *URL_SCHEME_NEWS;
+extern const char *URL_SCHEME_NNTP;
+extern const char *URL_SCHEME_PROSPERO;
+extern const char *URL_SCHEME_TELNET;
+extern const char *URL_SCHEME_TUNNEL;
+extern const char *URL_SCHEME_WAIS;
+extern const char *URL_SCHEME_PNM;
+extern const char *URL_SCHEME_RTSP;
+extern const char *URL_SCHEME_RTSPU;
+extern const char *URL_SCHEME_MMS;
+extern const char *URL_SCHEME_MMSU;
+extern const char *URL_SCHEME_MMST;
+
+extern int URL_WKSIDX_FILE;
+extern int URL_WKSIDX_FTP;
+extern int URL_WKSIDX_GOPHER;
+extern int URL_WKSIDX_HTTP;
+extern int URL_WKSIDX_HTTPS;
+extern int URL_WKSIDX_WS;
+extern int URL_WKSIDX_WSS;
+extern int URL_WKSIDX_MAILTO;
+extern int URL_WKSIDX_NEWS;
+extern int URL_WKSIDX_NNTP;
+extern int URL_WKSIDX_PROSPERO;
+extern int URL_WKSIDX_TELNET;
+extern int URL_WKSIDX_TUNNEL;
+extern int URL_WKSIDX_WAIS;
+extern int URL_WKSIDX_PNM;
+extern int URL_WKSIDX_RTSP;
+extern int URL_WKSIDX_RTSPU;
+extern int URL_WKSIDX_MMS;
+extern int URL_WKSIDX_MMSU;
+extern int URL_WKSIDX_MMST;
+
+extern int URL_LEN_FILE;
+extern int URL_LEN_FTP;
+extern int URL_LEN_GOPHER;
+extern int URL_LEN_HTTP;
+extern int URL_LEN_HTTPS;
+extern int URL_LEN_WS;
+extern int URL_LEN_WSS;
+extern int URL_LEN_MAILTO;
+extern int URL_LEN_NEWS;
+extern int URL_LEN_NNTP;
+extern int URL_LEN_PROSPERO;
+extern int URL_LEN_TELNET;
+extern int URL_LEN_TUNNEL;
+extern int URL_LEN_WAIS;
+extern int URL_LEN_PNM;
+extern int URL_LEN_RTSP;
+extern int URL_LEN_RTSPU;
+extern int URL_LEN_MMS;
+extern int URL_LEN_MMSU;
+extern int URL_LEN_MMST;
+
+/* Private */
+void url_adjust(MarshalXlate *str_xlate, int num_xlate);
+
+/* Public */
+void url_init();
+
+URLImpl *url_create(HdrHeap *heap);
+void url_clear(URLImpl *url_impl);
+void url_nuke_proxy_stuff(URLImpl *d_url);
+
+URLImpl *url_copy(URLImpl *s_url, HdrHeap *s_heap, HdrHeap *d_heap, bool inherit_strs = true);
+void url_copy_onto(URLImpl *s_url, HdrHeap *s_heap, URLImpl *d_url, HdrHeap *d_heap, bool inherit_strs = true);
+void url_copy_onto_as_server_url(URLImpl *s_url, HdrHeap *s_heap,
+                                 URLImpl *d_url, HdrHeap *d_heap, bool inherit_strs = true);
+
+int url_print(URLImpl *u, char *buf, int bufsize, int *bufindex, int *dumpoffset);
+void url_describe(HdrHeapObjImpl *raw, bool recurse);
+
+int url_length_get(URLImpl *url);
+char *url_string_get(URLImpl *url, Arena *arena, int *length, HdrHeap *heap);
+void url_clear_string_ref(URLImpl *url);
+char *url_string_get_ref(HdrHeap *heap, URLImpl *url, int *length);
+void url_called_set(URLImpl *url);
+char *url_string_get_buf(URLImpl *url, char *dstbuf, int dstbuf_size, int *length);
+
+const char *url_scheme_get(URLImpl *url, int *length);
+void url_MD5_get(URLImpl *url, INK_MD5 *md5);
+void url_host_MD5_get(URLImpl *url, INK_MD5 *md5);
+const char *url_scheme_set(HdrHeap *heap, URLImpl *url,
+                           const char *value, int value_wks_idx, int length, bool copy_string);
+
+/* Internet specific */
+void url_user_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+void url_password_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+void url_host_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+void url_port_set(HdrHeap *heap, URLImpl *url, unsigned int port);
+
+/* HTTP specific */
+void url_path_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+
+void url_type_set(URLImpl *url, unsigned int type);
+
+/* HTTP specific */
+void url_params_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+void url_query_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+void url_fragment_set(HdrHeap *heap, URLImpl *url, const char *value, int length, bool copy_string);
+
+MIMEParseResult url_parse(HdrHeap *heap, URLImpl *url, const char **start, const char *end, bool copy_strings);
+MIMEParseResult url_parse_no_path_component_breakdown(HdrHeap *heap, URLImpl *url,
+                                                      const char **start, const char *end, bool copy_strings);
+MIMEParseResult url_parse_internet(HdrHeap *heap, URLImpl *url,
+                                   const char **start, const char *end, bool copy_strings);
+MIMEParseResult url_parse_http(HdrHeap *heap, URLImpl *url, const char **start, const char *end, bool copy_strings);
+MIMEParseResult url_parse_http_no_path_component_breakdown(HdrHeap *heap, URLImpl *url,
+                                                           const char **start, const char *end, bool copy_strings);
+
+char *url_unescapify(Arena *arena, const char *str, int length);
+
+void unescape_str(char *&buf, char *buf_e, const char *&str, const char *str_e, int &state);
+void unescape_str_tolower(char *&buf, char *end, const char *&str, const char *str_e, int &state);
+
+
+inline int
+url_canonicalize_port(int type, int port)
+{
+  if (port == 0) {
+    if (type == URL_TYPE_HTTP)
+      port = 80;
+    else if (type == URL_TYPE_HTTPS)
+      port = 443;
+  }
+  return (port);
+}
+
+class URL:public HdrHeapSDKHandle
+{
+public:
+  URLImpl *m_url_impl;
+
+  URL();
+  ~URL();
+
+  int valid() const;
+
+  void create(HdrHeap *h);
+  void copy(const URL *url);
+  void copy_shallow(const URL *url);
+  void clear();
+  void reset();
+  // Note that URL::destroy() is inherited from HdrHeapSDKHandle.
+  void nuke_proxy_stuff();
+
+  int print(char *buf, int bufsize, int *bufindex, int *dumpoffset);
+
+  int length_get();
+  void clear_string_ref();
+  char *string_get(Arena *arena, int *length = NULL);
+  char *string_get_ref(int *length = NULL);
+  char *string_get_buf(char *dstbuf, int dsbuf_size, int *length = NULL);
+  void MD5_get(INK_MD5 *md5);
+  void host_MD5_get(INK_MD5 *md5);
+
+  const char *scheme_get(int *length);
+  int scheme_get_wksidx();
+  void scheme_set(const char *value, int length);
+
+  const char *user_get(int *length);
+  void user_set(const char *value, int length);
+  const char *password_get(int *length);
+  void password_set(const char *value, int length);
+  const char *host_get(int *length);
+  void host_set(const char *value, int length);
+  int port_get();
+  int port_get_raw();
+  void port_set(int port);
+
+  const char *path_get(int *length);
+  void path_set(const char *value, int length);
+
+  int type_get();
+  void type_set(int type);
+
+  const char *params_get(int *length);
+  void params_set(const char *value, int length);
+  const char *query_get(int *length);
+  void query_set(const char *value, int length);
+  const char *fragment_get(int *length);
+  void fragment_set(const char *value, int length);
+
+  MIMEParseResult parse(const char **start, const char *end);
+  MIMEParseResult parse(const char *str, int length);
+  MIMEParseResult parse_no_path_component_breakdown(const char *str, int length);
+
+public:
+  static char *unescapify(Arena *arena, const char *str, int length);
+
+private:
+
+  // No gratuitous copies!
+    URL(const URL & u);
+    URL & operator =(const URL & u);
+};
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline
+URL::URL()
+  : m_url_impl(NULL)
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline
+URL::~URL()
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+URL::valid() const
+{
+  return (m_heap && m_url_impl);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::create(HdrHeap *heap)
+{
+  if (heap) {
+    m_heap = heap;
+  } else if (!m_heap) {
+    m_heap = new_HdrHeap();
+  }
+
+  m_url_impl = url_create(m_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::copy(const URL *url)
+{
+  ink_assert(url->valid());
+  url_copy_onto(url->m_url_impl, url->m_heap, m_url_impl, m_heap);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::copy_shallow(const URL *url)
+{
+  ink_assert(url->valid());
+  this->set(url);
+  m_url_impl = url->m_url_impl;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::clear()
+{
+  m_url_impl = NULL;
+  HdrHeapSDKHandle::clear();
+}
+
+inline void
+URL::reset()
+{
+  m_url_impl = NULL;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::nuke_proxy_stuff()
+{
+  ink_assert(valid());
+  url_nuke_proxy_stuff(m_url_impl);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+URL::print(char *buf, int bufsize, int *bufindex, int *dumpoffset)
+{
+  ink_assert(valid());
+  return url_print(m_url_impl, buf, bufsize, bufindex, dumpoffset);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+URL::length_get()
+{
+  ink_assert(valid());
+  return url_length_get(m_url_impl);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline char *
+URL::string_get(Arena *arena_or_null_for_malloc, int *length)
+{
+  ink_assert(valid());
+  return url_string_get(m_url_impl, arena_or_null_for_malloc, length, m_heap);
+}
+
+inline char *
+URL::string_get_ref(int *length)
+{
+  ink_assert(valid());
+  return url_string_get_ref(m_heap, m_url_impl, length);
+}
+
+inline void
+URL::clear_string_ref()
+{
+  ink_assert(valid());
+  url_clear_string_ref(m_url_impl);
+  return;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+inline char *
+URL::string_get_buf(char *dstbuf, int dsbuf_size, int *length)
+{
+  ink_assert(valid());
+  return url_string_get_buf(m_url_impl, dstbuf, dsbuf_size, length);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::MD5_get(INK_MD5 *md5)
+{
+  ink_assert(valid());
+  url_MD5_get(m_url_impl, md5);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::host_MD5_get(INK_MD5 *md5)
+{
+  ink_assert(valid());
+  url_host_MD5_get(m_url_impl, md5);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::scheme_get(int *length)
+{
+  ink_assert(valid());
+  return (url_scheme_get(m_url_impl, length));
+}
+
+
+inline int
+URL::scheme_get_wksidx()
+{
+  ink_assert(valid());
+  return (m_url_impl->m_scheme_wks_idx);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::scheme_set(const char *value, int length)
+{
+  ink_assert(valid());
+  int scheme_wks_idx = (value ? hdrtoken_tokenize(value, length) : -1);
+  url_scheme_set(m_heap, m_url_impl, value, scheme_wks_idx, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::user_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_user;
+  return m_url_impl->m_ptr_user;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::user_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_user_set(m_heap, m_url_impl, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::password_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_password;
+  return m_url_impl->m_ptr_password;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::password_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_password_set(m_heap, m_url_impl, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::host_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_host;
+  return m_url_impl->m_ptr_host;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::host_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_host_set(m_heap, m_url_impl, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+URL::port_get()
+{
+  ink_assert(valid());
+  return url_canonicalize_port(m_url_impl->m_url_type, m_url_impl->m_port);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+URL::port_get_raw()
+{
+  ink_assert(valid());
+  return m_url_impl->m_port;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::port_set(int port)
+{
+  ink_assert(valid());
+  url_port_set(m_heap, m_url_impl, port);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::path_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_path;
+  return m_url_impl->m_ptr_path;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::path_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_path_set(m_heap, m_url_impl, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline int
+URL::type_get()
+{
+  ink_assert(valid());
+  return m_url_impl->m_type_code;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::type_set(int type)
+{
+  ink_assert(valid());
+  url_type_set(m_url_impl, type);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::params_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_params;
+  return m_url_impl->m_ptr_params;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::params_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_params_set(m_heap, m_url_impl, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::query_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_query;
+  return m_url_impl->m_ptr_query;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::query_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_query_set(m_heap, m_url_impl, value, length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline const char *
+URL::fragment_get(int *length)
+{
+  ink_assert(valid());
+  *length = m_url_impl->m_len_fragment;
+  return m_url_impl->m_ptr_fragment;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline void
+URL::fragment_set(const char *value, int length)
+{
+  ink_assert(valid());
+  url_fragment_set(m_heap, m_url_impl, value, length, true);
+}
+
+/**
+  Parser doesn't clear URL first, so if you parse over a non-clear URL,
+  the resulting URL may contain some of the previous data.
+
+ */
+inline MIMEParseResult
+URL::parse(const char **start, const char *end)
+{
+  ink_assert(valid());
+  return url_parse(m_heap, m_url_impl, start, end, true);
+}
+
+/**
+  Parser doesn't clear URL first, so if you parse over a non-clear URL,
+  the resulting URL may contain some of the previous data.
+
+ */
+inline MIMEParseResult
+URL::parse(const char *str, int length)
+{
+  ink_assert(valid());
+  if (length < 0)
+    length = (int) strlen(str);
+  return parse(&str, str + length);
+}
+
+/**
+  Parser doesn't clear URL first, so if you parse over a non-clear URL,
+  the resulting URL may contain some of the previous data.
+
+ */
+inline MIMEParseResult
+URL::parse_no_path_component_breakdown(const char *str, int length)
+{
+  ink_assert(valid());
+  if (length < 0)
+    length = (int) strlen(str);
+  ink_assert(valid());
+  return url_parse_no_path_component_breakdown(m_heap, m_url_impl, &str, str + length, true);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline char *
+URL::unescapify(Arena *arena, const char *str, int length)
+{
+  return url_unescapify(arena, str, length);
+}
+
+#endif /* __URL_H__ */
+
diff --git a/proxy/hdrs/load_http_hdr.cc b/proxy/hdrs/load_http_hdr.cc
new file mode 100644
index 00000000..8e141eff
--- /dev/null
+++ b/proxy/hdrs/load_http_hdr.cc
@@ -0,0 +1,341 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   load_http_hdr.cc
+
+   Description:
+
+   Opens a file with a dbx dump of an http hdr and loads it
+
+
+ ****************************************************************************/
+
+/***************************************************************************
+ *  USAGE NOTE:  This program was orignally built for reading TS 3.0.X &
+ *    TS 3.5.X header dumps.  These data structures were always continguous.
+ *    TS 4.0.X and later have completely redesigned data structures that
+ *    are more complicated but much faster.  This program has been adapted
+ *    read headers that have been unmarshalled from cache, in which
+ *    case they are contiguious.  It's conversion is in a half baked
+ *    state and is therefore not useful for must purposes.
+ ***************************************************************************/
+
+
+#include "HdrHeap.h"
+#include "MIME.h"
+#include "HTTP.h"
+#include "Tokenizer.h"
+#include "Diags.h"
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+void *low_load_addr = NULL;
+void *high_load_addr = NULL;
+int heap_load_size = 0;
+int marshalled = 0;
+
+//Diags *diags;
+
+enum hdr_type
+{
+  UNKNOWN_HDR,
+  REQUEST_HDR,
+  RESPONSE_HDR,
+  HTTP_INFO_HDR,
+  RAW_MBUFFER
+};
+
+char *
+load_string(const char *s, int len, int offset)
+{
+
+  const char *copy_from;
+  if (marshalled == 0 && s > low_load_addr && s + len < high_load_addr) {
+    copy_from = s + offset;
+  } else if (marshalled && ((unsigned int) s) + len < (unsigned int) heap_load_size) {
+    copy_from = s + offset;
+  } else {
+    copy_from = "<BAD>";
+    len = strlen(copy_from);
+  }
+  char *r = (char *)ats_malloc(len + 1);
+  memcpy(r, copy_from, len);
+  r[len] = '\0';
+  return r;
+}
+
+
+void
+process_http_hdr_impl(HdrHeapObjImpl * obj, int offset)
+{
+  char *s;
+  HTTPHdrImpl *hhdr = (HTTPHdrImpl *) obj;
+
+  if (hhdr->m_polarity == HTTP_TYPE_REQUEST) {
+    printf("    is a request hdr\n");
+    s = load_string(hhdr->u.req.m_ptr_method, hhdr->u.req.m_len_method, offset);
+    printf("    method: %s\n", s);
+    ats_free(s);
+  } else if (hhdr->m_polarity == HTTP_TYPE_RESPONSE) {
+    printf("    is a response hdr\n");
+    printf("    status code: %d\n", (int) hhdr->u.resp.m_status);
+    s = load_string(hhdr->u.resp.m_ptr_reason, hhdr->u.resp.m_len_reason, offset);
+    printf("    method: %s\n", s);
+    ats_free(s);
+  }
+}
+
+void
+process_mime_block_impl(MIMEFieldBlockImpl * mblock, int offset)
+{
+
+  printf("   Processing mime_flock_impl - freetop %d\n", mblock->m_freetop);
+  int freetop;
+  if (mblock->m_freetop <= MIME_FIELD_BLOCK_SLOTS) {
+    freetop = mblock->m_freetop;
+  } else {
+    freetop = MIME_FIELD_BLOCK_SLOTS;
+  }
+
+  char *n, *v;
+  for (unsigned int i = 0; i < freetop; i++) {
+    MIMEField *f = &mblock->m_field_slots[i];
+    if (hdrtoken_is_valid_wks_idx(f->m_wks_idx)) {
+      n = ats_strdup(hdrtoken_index_to_wks(f->m_wks_idx));
+    } else {
+      n = load_string(f->m_ptr_name, f->m_len_name, offset);
+    }
+    v = load_string(f->m_ptr_value, f->m_len_value, offset);
+    printf("    (%d) %s: %s\n", i, n, v);
+    ats_free(n);
+    ats_free(v);
+  }
+}
+
+void
+process_mime_hdr_impl(HdrHeapObjImpl * obj, int offset)
+{
+  MIMEHdrImpl *mhdr = (MIMEHdrImpl *) obj;
+
+  process_mime_block_impl(&mhdr->m_first_fblock, offset);
+}
+
+
+void
+loop_over_heap_objs(HdrHeap * hdr_heap, int offset)
+{
+
+  char *buffer_end;
+
+  printf("Looping over HdrHeap objects @ 0x%X\n", hdr_heap);
+
+  if (hdr_heap->m_magic == HDR_BUF_MAGIC_MARSHALED) {
+    printf(" marshalled heap - size %d\n", hdr_heap->m_size);
+    hdr_heap->m_data_start = ((char *) hdr_heap) + ROUND(sizeof(HdrHeap), HDR_PTR_SIZE);
+    hdr_heap->m_free_start = ((char *) hdr_heap) + hdr_heap->m_size;
+  } else {
+    buffer_end = hdr_heap->m_free_start;
+  }
+
+  printf(" heap len is %d bytes\n", hdr_heap->m_free_start - hdr_heap->m_data_start);
+
+  char *obj_data = hdr_heap->m_data_start;
+  while (obj_data < hdr_heap->m_free_start) {
+    HdrHeapObjImpl *obj = (HdrHeapObjImpl *) obj_data;
+
+    switch (obj->m_type) {
+    case HDR_HEAP_OBJ_HTTP_HEADER:
+      printf("  HDR_HEAP_OBJ_HTTP_HEADER %d bytes\n", obj->m_length);
+      process_http_hdr_impl(obj, offset);
+      break;
+    case HDR_HEAP_OBJ_URL:
+      printf("  HDR_HEAP_OBJ_URL         %d bytes\n", obj->m_length);
+      break;
+    case HDR_HEAP_OBJ_FIELD_BLOCK:
+      printf("  HDR_HEAP_OBJ_FIELD_BLOCK %d bytes\n", obj->m_length);
+      break;
+    case HDR_HEAP_OBJ_MIME_HEADER:
+      printf("  HDR_HEAP_OBJ_MIME_HEADER %d bytes\n", obj->m_length);
+      process_mime_hdr_impl(obj, offset);
+      break;
+    case HDR_HEAP_OBJ_EMPTY:
+      printf("  HDR_HEAP_OBJ_EMPTY       %d bytes\n", obj->m_length);
+      break;
+    default:
+      printf("  OBJ UNKONWN (%d)  %d bytes\n", obj->m_type, obj->m_length);
+    }
+
+    if (obj->m_length == 0) {
+      printf(" ERROR zero length object\n");
+      break;
+    }
+    obj_data = obj_data + obj->m_length;
+  }
+}
+
+
+void
+load_buffer(int fd, hdr_type h_type)
+{
+
+  struct stat s_info;
+
+  if (fstat(fd, &s_info) < 0) {
+    fprintf(stderr, "Failed to stat data file : %s\n", strerror(errno));
+    exit(1);
+  }
+
+  char *file_buf = (char *)ats_malloc(sizeof(char) * (s_info.st_size + 1));
+  file_buf[s_info.st_size] = '\0';
+
+
+  // Read in the entire file
+  int bytes_to_read = s_info.st_size;
+  while (bytes_to_read > 0) {
+    int done = read(fd, file_buf, bytes_to_read);
+
+    if (done < 0) {
+      fprintf(stderr, "Failed to read data file : %s\n", strerror(errno));
+      exit(1);
+    } else if (done == 0) {
+      fprintf(stderr, "EOF encounted\n");
+      exit(1);
+    }
+
+    bytes_to_read -= done;
+  }
+
+  Tokenizer line_tok("\n");
+  Tokenizer el_tok(" \t");
+
+
+  int num_lines = line_tok.Initialize(file_buf);
+  int num_el = el_tok.Initialize(line_tok[0]);
+
+  if (num_el < 3) {
+    fprintf(stderr, "Corrupted data file\n");
+    exit(1);
+  }
+
+  void *old_addr = NULL;
+  if (sscanf(el_tok[0], "%x:", &old_addr) != 1) {
+    fprintf(stderr, "Corrupted data file\n");
+    exit(1);
+  }
+  low_load_addr = old_addr;
+
+  int hdr_size;
+  if (sscanf(el_tok[4], "%x", &hdr_size) != 1) {
+    fprintf(stderr, "Corrupted data file\n");
+    exit(1);
+  }
+  hdr_size = (num_lines * 16);
+  heap_load_size = hdr_size;
+
+  char *hdr_heap = (char *)ats_malloc(hdr_size);
+  int bytes_read = 0;
+  int cur_line = 0;
+
+  while (cur_line < num_lines && bytes_read < hdr_size) {
+
+    int *cur_ptr;
+    num_el = el_tok.Initialize(line_tok[cur_line]);
+
+    if (sscanf(el_tok[0], "%x:", &high_load_addr) != 1) {
+      fprintf(stderr, "Corrupted data file\n");
+      exit(1);
+    }
+    high_load_addr = ((char *) high_load_addr) + (num_el * 4);
+
+    int el;
+    for (int i = 1; i < num_el; i++) {
+      if (sscanf(el_tok[i], "%x", &el) != 1) {
+        fprintf(stderr, "Corrupted data file\n");
+        exit(1);
+      }
+      cur_ptr = (int *) (hdr_heap + bytes_read);
+      *cur_ptr = el;
+      bytes_read += 4;
+    }
+    cur_line++;
+  }
+
+  HdrHeap *my_heap = (HdrHeap *) hdr_heap;
+  int offset = hdr_heap - (char *) old_addr;
+
+  // Patch up some values
+  if (my_heap->m_magic == HDR_BUF_MAGIC_MARSHALED) {
+//      HdrHeapObjImpl* obj;
+//      my_heap->unmarshal(hdr_size, HDR_HEAP_OBJ_HTTP_HEADER, &obj, NULL);
+    marshalled = 1;
+    offset = (int) hdr_heap;
+  } else {
+    my_heap->m_free_start = my_heap->m_free_start + offset;
+    my_heap->m_data_start = my_heap->m_data_start + offset;
+    my_heap->m_ronly_heap[0].m_heap_start = my_heap->m_ronly_heap[0].m_heap_start + offset;
+  }
+  loop_over_heap_objs(my_heap, offset);
+}
+
+int
+main(int argc, const char *argv[])
+{
+
+  hdr_type h_type = UNKNOWN_HDR;
+
+  http_init();
+  diags = new Diags(NULL, NULL);
+  if (argc != 3) {
+    fprintf(stderr, "Usage: %s req|res <file>\n", argv[0]);
+    exit(1);
+  }
+
+  if (strcasecmp(argv[1], "req") == 0) {
+    h_type = REQUEST_HDR;
+  } else if (strcasecmp(argv[1], "resp") == 0) {
+    h_type = RESPONSE_HDR;
+  } else if (strcasecmp(argv[1], "hinfo") == 0) {
+    h_type = HTTP_INFO_HDR;
+  } else if (strcasecmp(argv[1], "mbuf") == 0) {
+    h_type = RAW_MBUFFER;
+  } else {
+    fprintf(stderr, "Usage: %s req|resp|hinfo|mbuf <file>\n", argv[0]);
+    exit(1);
+  }
+
+  int fd = open(argv[2], O_RDONLY);
+
+  if (fd < 0) {
+    fprintf(stderr, "Could not open file %s : %s\n", argv[2], strerror(errno));
+    exit(1);
+  }
+  load_buffer(fd, h_type);
+
+  return 0;
+}
diff --git a/proxy/hdrs/test_header.cc b/proxy/hdrs/test_header.cc
new file mode 100644
index 00000000..b1963555
--- /dev/null
+++ b/proxy/hdrs/test_header.cc
@@ -0,0 +1,1044 @@
+/** @file
+
+  test code for sanity checking the header system is functioning properly
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "Arena.h"
+#include "HTTP.h"
+// #include "Marshal.h"
+#include "MIME.h"
+#include "Regex.h"
+#include "URL.h"
+#include "HttpCompat.h"
+
+static void test_parse_date();
+static void test_format_date();
+static void test_url();
+static void test_mime();
+static void test_http_parser_eos_boundary_cases();
+static void test_http();
+static void test_http_mutation();
+static void test_arena();
+static void test_regex();
+static void test_accept_language_match();
+static void test_str_replace_slice();
+static void bri_box(char *s);
+
+int
+main(int argc, char *argv[])
+{
+  hdrtoken_init();
+  url_init();
+  mime_init();
+  http_init();
+
+  test_str_replace_slice();
+  test_accept_language_match();
+  test_parse_date();
+  test_format_date();
+  test_url();
+  test_arena();
+  test_regex();
+  test_http_mutation();
+  test_http_parser_eos_boundary_cases();
+  test_mime();
+  test_http();
+  return (0);
+}
+
+
+static void
+test_parse_date()
+{
+  static struct
+  {
+    const char *fast;
+    const char *slow;
+  } dates[] = {
+    {
+    "Sun, 06 Nov 1994 08:49:37 GMT", "Sunday, 06-Nov-1994 08:49:37 GMT"}, {
+    "Mon, 07 Nov 1994 08:49:37 GMT", "Monday, 07-Nov-1994 08:49:37 GMT"}, {
+    "Tue, 08 Nov 1994 08:49:37 GMT", "Tuesday, 08-Nov-1994 08:49:37 GMT"}, {
+    "Wed, 09 Nov 1994 08:49:37 GMT", "Wednesday, 09-Nov-1994 08:49:37 GMT"}, {
+    "Thu, 10 Nov 1994 08:49:37 GMT", "Thursday, 10-Nov-1994 08:49:37 GMT"}, {
+    "Fri, 11 Nov 1994 08:49:37 GMT", "Friday, 11-Nov-1994 08:49:37 GMT"}, {
+    "Sat, 11 Nov 1994 08:49:37 GMT", "Saturday, 11-Nov-1994 08:49:37 GMT"}, {
+    "Sun, 03 Jan 1999 08:49:37 GMT", "Sunday, 03-Jan-1999 08:49:37 GMT"}, {
+    "Sun, 07 Feb 1999 08:49:37 GMT", "Sunday, 07-Feb-1999 08:49:37 GMT"}, {
+    "Sun, 07 Mar 1999 08:49:37 GMT", "Sunday, 07-Mar-1999 08:49:37 GMT"}, {
+    "Sun, 04 Apr 1999 08:49:37 GMT", "Sunday, 04-Apr-1999 08:49:37 GMT"}, {
+    "Sun, 02 May 1999 08:49:37 GMT", "Sunday, 02-May-1999 08:49:37 GMT"}, {
+    "Sun, 06 Jun 1999 08:49:37 GMT", "Sunday, 06-Jun-1999 08:49:37 GMT"}, {
+    "Sun, 04 Jul 1999 08:49:37 GMT", "Sunday, 04-Jul-1999 08:49:37 GMT"}, {
+    "Sun, 01 Aug 1999 08:49:37 GMT", "Sunday, 01-Aug-1999 08:49:37 GMT"}, {
+    "Sun, 05 Sep 1999 08:49:37 GMT", "Sunday, 05-Sep-1999 08:49:37 GMT"}, {
+    "Sun, 03 Oct 1999 08:49:37 GMT", "Sunday, 03-Oct-1999 08:49:37 GMT"}, {
+    "Sun, 07 Nov 1999 08:49:37 GMT", "Sunday, 07-Nov-1999 08:49:37 GMT"}, {
+    "Sun, 05 Dec 1999 08:49:37 GMT", "Sunday, 05-Dec-1999 08:49:37 GMT"}, {
+  NULL, NULL}};
+
+  int i;
+  int failures = 0;
+  time_t fast_t, slow_t;
+
+  bri_box("test_parse_date");
+
+  for (i = 0; dates[i].fast; i++) {
+    fast_t = mime_parse_date(dates[i].fast, dates[i].fast + strlen(dates[i].fast));
+    slow_t = mime_parse_date(dates[i].slow, dates[i].slow + strlen(dates[i].slow));
+    // compare with strptime here!
+    if (fast_t != slow_t) {
+      printf("FAILED: date %d (%s) != %d (%s)\n", fast_t, dates[i].fast, slow_t, dates[i].slow);
+      ++failures;
+    }
+  }
+
+  printf("*** %s ***\n", (failures ? "FAILED" : "PASSED"));
+}
+
+
+static void
+test_format_date()
+{
+  static char *dates[] = {
+    "Sun, 06 Nov 1994 08:49:37 GMT",
+    "Sun, 03 Jan 1999 08:49:37 GMT",
+    "Sun, 05 Dec 1999 08:49:37 GMT",
+    "Tue, 25 Apr 2000 20:29:53 GMT",
+    NULL
+  };
+
+  bri_box("test_format_date");
+
+  // (1) Test a few hand-created dates
+
+  int i;
+  time_t t, t2;
+  char buffer[128], buffer2[128];
+  static char *envstr = "TZ=GMT";
+  int failures = 0;
+
+  // shift into GMT timezone for cftime conversions
+  putenv(envstr);
+  tzset();
+
+  for (i = 0; dates[i]; i++) {
+    t = mime_parse_date(dates[i], dates[i] + strlen(dates[i]));
+
+    cftime(buffer, "%a, %d %b %Y %T %Z", &t);
+    if (memcmp(dates[i], buffer, 29) != 0) {
+      printf("FAILED: original date doesn't match cftime date\n");
+      printf("  input date:  %s\n", dates[i]);
+      printf("  cftime date: %s\n", buffer);
+      ++failures;
+    }
+
+    mime_format_date(buffer, t);
+    if (memcmp(dates[i], buffer, 29) != 0) {
+      printf("FAILED: original date doesn't match mime_format_date date\n");
+      printf("  input date:  %s\n", dates[i]);
+      printf("  cftime date: %s\n", buffer);
+      ++failures;
+    }
+  }
+
+  // (2) test a few times per day from 1/1/1970 to past 2010
+
+  for (t = 0; t < 40 * 366 * (24 * 60 * 60); t += drand48() * (24 * 60 * 60)) {
+    cftime(buffer, "%a, %d %b %Y %T %Z", &t);
+//      printf("%s\n",buffer);
+
+    t2 = mime_parse_date(buffer, buffer + strlen(buffer));
+    if (t2 != t) {
+      printf("FAILED: parsed time_t doesn't match original time_t\n");
+      printf("  input time_t:  %d (%s)\n", t, buffer);
+      printf("  parsed time_t: %d\n", t2);
+      ++failures;
+    }
+
+    mime_format_date(buffer2, t2);
+    if (memcmp(buffer, buffer2, 29) != 0) {
+      printf("FAILED: formatted date doesn't match original date\n");
+      printf("  original date:  %s\n", buffer);
+      printf("  formatted date: %s\n", buffer2);
+      ++failures;
+    }
+  }
+  printf("*** %s ***\n", (failures ? "FAILED" : "PASSED"));
+}
+
+
+static void
+test_url()
+{
+  static const char *strs[] = {
+    "http://some.place/path;params?query#fragment",
+
+    // Start with an easy one...
+    "http://trafficserver.apache.org/index.html",
+
+    "cheese://bogosity",
+
+    "some.place",
+    "some.place/",
+    "http://some.place",
+    "http://some.place/",
+    "http://some.place/path",
+    "http://some.place/path;params",
+    "http://some.place/path;params?query",
+    "http://some.place/path;params?query#fragment",
+    "http://some.place/path?query#fragment",
+    "http://some.place/path#fragment",
+
+    "some.place:80",
+    "some.place:80/",
+    "http://some.place:80",
+    "http://some.place:80/",
+
+    "foo@some.place:80",
+    "foo@some.place:80/",
+    "http://foo@some.place:80",
+    "http://foo@some.place:80/",
+
+    "foo:bar@some.place:80",
+    "foo:bar@some.place:80/",
+    "http://foo:bar@some.place:80",
+    "http://foo:bar@some.place:80/",
+
+    "foo:bar@some.place",
+    "foo:bar@some.place/",
+    "http://foo:bar@some.place",
+    "http://foo:bar@some.place/",
+
+    "pnm://foo:bar@some.place:80/path;params?query#fragment",
+    "rtsp://foo:bar@some.place:80/path;params?query#fragment",
+    "rtspu://foo:bar@some.place:80/path;params?query#fragment",
+    "/finance/external/cbsm/*http://cbs.marketwatch.com/archive/19990713/news/current/net.htx?source=blq/yhoo&dist=yhoo"
+  };
+  static int nstrs = sizeof(strs) / sizeof(strs[0]);
+
+  int err, failed;
+  URL url;
+  const char *start;
+  const char *end;
+  int i, old_length, new_length;
+
+  bri_box("test_url");
+
+  failed = 0;
+  for (i = 0; i < nstrs; i++) {
+    old_length = strlen(strs[i]);
+    start = strs[i];
+    end = start + old_length;
+
+    url.create(NULL);
+    err = url.parse(&start, end);
+    if (err < 0) {
+      failed = 1;
+      break;
+    }
+
+    char print_buf[1024];
+    new_length = 0;
+    int offset = 0;
+    url.print(print_buf, 1024, &new_length, &offset);
+    print_buf[new_length] = '\0';
+
+    char *fail_text = NULL;
+
+    if (old_length == new_length) {
+      if (memcmp(print_buf, strs[i], new_length) != 0)
+        fail_text = "URLS DIFFER";
+    } else if (old_length == new_length - 1) {
+      // Check to see if the difference is the trailing
+      //   slash we add
+      if (memcmp(print_buf, strs[i], old_length) != 0 ||
+          print_buf[new_length - 1] != '/' || (strs[i])[old_length - 1] == '/') {
+        fail_text = "TRAILING SLASH";
+      }
+    } else {
+      fail_text = "LENGTHS DIFFER";
+    }
+
+    if (fail_text) {
+      failed = 1;
+      printf("%16s: OLD: (%4d) %s\n", fail_text, old_length, strs[i]);
+      printf("%16s: NEW: (%4d) %s\n", "", new_length, print_buf);
+      obj_describe(url.m_url_impl, true);
+    }
+
+    url.destroy();
+  }
+
+  printf("*** %s ***\n", (failed ? "FAILED" : "PASSED"));
+}
+
+
+static void
+test_mime()
+{
+  static const char mime[] = {
+    //        "Date: Tuesday, 08-Dec-98 20:32:17 GMT\r\n"
+    "Date: 6 Nov 1994 08:49:37 GMT\r\n"
+      "Max-Forwards: 65535\r\n"
+      "Cache-Control: private\r\n"
+      "accept: foo\r\n"
+      "accept: bar\n"
+      ": (null) field name\r\n"
+      "aCCept: \n"
+      "ACCEPT\r\n"
+      "foo: bar\r\n"
+      "foo: argh\r\n"
+      "word word: word \r\n"
+      "accept: \"fazzle, dazzle\"\r\n"
+      "accept: 1, 2, 3, 4, 5, 6, 7, 8\r\n"
+      "continuation: part1\r\n" " part2\r\n" "scooby: doo\r\n" "scooby : doo\r\n" "bar: foo\r\n" "\r\n"
+  };
+
+  int err;
+  MIMEHdr hdr;
+  MIMEParser parser;
+  const char *start;
+  const char *end;
+
+  bri_box("test_mime");
+
+  printf("   <<< MUST BE HAND-VERIFIED >>>\n\n");
+
+  start = mime;
+  end = start + strlen(start);
+
+  mime_parser_init(&parser);
+
+  bool must_copy_strs = 0;
+
+  hdr.create(NULL);
+  err = hdr.parse(&parser, &start, end, must_copy_strs, false);
+
+  if (err < 0) {
+    return;
+  }
+
+  hdr.field_delete("not_there", 9);
+  hdr.field_delete("accept", 6);
+  hdr.field_delete("scooby", 6);
+  hdr.field_delete("scooby", 6);
+  hdr.field_delete("bar", 3);
+  hdr.field_delete("continuation", 12);
+
+  int count = hdr.fields_count();
+  printf("hdr.fields_count() = %d\n", count);
+
+  int i_max_forwards = hdr.value_get_int("Max-Forwards", 12);
+  int u_max_forwards = hdr.value_get_uint("Max-Forwards", 12);
+  printf("i_max_forwards = %d   u_max_forwards = %d\n", i_max_forwards, u_max_forwards);
+
+  hdr.set_age(9999);
+
+  int length = hdr.length_get();
+  printf("hdr.length_get() = %d\n", length);
+
+  time_t t0, t1, t2;
+
+  t0 = hdr.get_date();
+  if (t0 == 0)
+    printf("FAILED: Initial date is zero but shouldn't be\n");
+
+  t1 = time(NULL);
+  hdr.set_date(t1);
+  t2 = hdr.get_date();
+  if (t1 != t2) {
+    printf("FAILED: set_date(%ld) ... get_date = %ld\n\n", t1, t2);
+  }
+
+
+  hdr.value_append("Cache-Control", 13, "no-cache", 8, 1);
+
+  MIMEField *cc_field;
+  StrList slist;
+  int slist_count;
+  cc_field = hdr.field_find("Cache-Control", 13);
+  slist_count = cc_field->value_get_comma_list(&slist); // FIX: correct usage?
+
+
+
+  mime_parser_clear(&parser);
+
+  hdr.print(NULL, 0, NULL, NULL);
+  printf("\n");
+
+  obj_describe((HdrHeapObjImpl *) (hdr.m_mime), true);
+
+  hdr.fields_clear();
+
+  hdr.destroy();
+}
+
+
+static void
+test_http_parser_eos_boundary_cases()
+{
+  struct
+  {
+    char *msg;
+    int expected_result;
+    int expected_bytes_consumed;
+  } tests[] = {
+    {
+    "GET /index.html HTTP/1.0\r\n", PARSE_DONE, 26}, {
+    "GET /index.html HTTP/1.0\r\n\r\n***BODY****", PARSE_DONE, 28}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n\r\n***BODY****", PARSE_DONE, 48}, {
+    "GET", PARSE_ERROR, 3}, {
+    "GET /index.html", PARSE_ERROR, 15}, {
+    "GET /index.html\r\n", PARSE_DONE, 17}, {
+    "GET /index.html HTTP/1.0", PARSE_ERROR, 24}, {
+    "GET /index.html HTTP/1.0\r", PARSE_ERROR, 25}, {
+    "GET /index.html HTTP/1.0\n", PARSE_DONE, 25}, {
+    "GET /index.html HTTP/1.0\n\n", PARSE_DONE, 26}, {
+    "GET /index.html HTTP/1.0\r\n\r\n", PARSE_DONE, 28}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar", PARSE_ERROR, 44}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\n", PARSE_DONE, 45}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n", PARSE_DONE, 46}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n\r\n", PARSE_DONE, 48}, {
+    "GET /index.html HTTP/1.0\nUser-Agent: foobar\n", PARSE_DONE, 44}, {
+    "GET /index.html HTTP/1.0\nUser-Agent: foobar\nBoo: foo\n", PARSE_DONE, 53}, {
+    "GET /index.html HTTP/1.0\r\nUser-Agent: foobar\r\n", PARSE_DONE, 46}, {
+    "GET /index.html HTTP/1.0\r\n", PARSE_DONE, 26}, {
+    "", PARSE_DONE, 0}, {
+    NULL, 0, 0}
+  };
+
+  int i, ret, bytes_consumed;
+  const char *orig_start;
+  const char *start;
+  const char *end;
+  HTTPParser parser;
+
+  int failures = 0;
+
+  bri_box("test_http_parser_eos_boundary_cases");
+
+  http_parser_init(&parser);
+
+  for (i = 0; tests[i].msg != NULL; i++) {
+    HTTPHdr req_hdr;
+
+    start = tests[i].msg;
+    end = start + strlen(start);        // 1 character past end of string
+
+    req_hdr.create(HTTP_TYPE_REQUEST);
+
+    http_parser_clear(&parser);
+//      http_parser_init (&parser);
+
+    orig_start = start;
+    ret = req_hdr.parse_req(&parser, &start, end, true);
+    bytes_consumed = start - orig_start;
+
+    printf("======== test %d (length=%d, consumed=%d)\n", i, strlen(tests[i].msg), bytes_consumed);
+    printf("[%s]\n", tests[i].msg);
+    printf("\n[");
+    req_hdr.print(NULL, 0, NULL, NULL);
+    printf("]\n\n");
+
+    if ((ret != tests[i].expected_result) || (bytes_consumed != tests[i].expected_bytes_consumed)) {
+      ++failures;
+      printf("FAILED: test %d: retval <expected %d, got %d>, eaten <expected %d, got %d>\n\n",
+             i, tests[i].expected_result, ret, tests[i].expected_bytes_consumed, bytes_consumed);
+    } else {
+      printf("SUCCESS: test %d: retval <expected %d, got %d>, eaten <expected %d, got %d>\n\n",
+             i, tests[i].expected_result, ret, tests[i].expected_bytes_consumed, bytes_consumed);
+    }
+
+    req_hdr.destroy();
+  }
+
+  if (failures)
+    printf("*** %s ***\n", (failures ? "FAILED" : "PASSED"));
+}
+
+
+static void
+test_http_aux(const char *request, const char *response)
+{
+  int err;
+  HTTPHdr req_hdr, rsp_hdr;
+  HTTPParser parser;
+  const char *start;
+  const char *end;
+
+  bri_box("test_http");
+
+  printf("   <<< MUST BE HAND-VERIFIED >>>\n\n");
+
+    /*** (1) parse the request string into req_hdr ***/
+
+  start = request;
+  end = start + strlen(start);  // 1 character past end of string
+
+  http_parser_init(&parser);
+
+  req_hdr.create(HTTP_TYPE_REQUEST);
+  rsp_hdr.create(HTTP_TYPE_RESPONSE);
+
+  printf("======== parsing\n\n");
+  while (start < end) {
+    err = req_hdr.parse_req(&parser, &start, end, false);
+    if (err != PARSE_CONT)
+      break;
+    end = start + strlen(start);
+  }
+  if (err == PARSE_ERROR)
+    printf("  *** PARSE_ERROR ***\n");
+
+    /*** useless copy to exercise copy function ***/
+
+  HTTPHdr new_hdr;
+  new_hdr.create(HTTP_TYPE_REQUEST);
+  new_hdr.copy(&req_hdr);
+  new_hdr.destroy();
+
+    /*** (2) print out the request ***/
+
+  printf("======== real request (length=%d)\n\n", strlen(request));
+  printf("%s\n", request);
+
+  printf("\n[");
+  req_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+  obj_describe(req_hdr.m_http, true);
+
+  // req_hdr.destroy ();
+  // ink_release_assert(!"req_hdr.destroy() not defined");
+
+    /*** (3) parse the response string into rsp_hdr ***/
+
+  start = response;
+  end = start + strlen(start);
+
+  http_parser_clear(&parser);
+  http_parser_init(&parser);
+
+  while (start < end) {
+    err = rsp_hdr.parse_resp(&parser, &start, start + 1, false);
+    if (err != PARSE_CONT)
+      break;
+  }
+  if (err == PARSE_ERROR)
+    printf("  *** PARSE_ERROR ***\n");
+
+  http_parser_clear(&parser);
+
+    /*** (4) print out the response ***/
+
+  printf("\n======== real response (length=%d)\n\n", strlen(response));
+  printf("%s\n", response);
+
+  printf("\n[");
+  rsp_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+  obj_describe(rsp_hdr.m_http, true);
+
+#define NNN 1000
+  {
+    char buf[NNN];
+    int bufindex, last_bufindex;
+    int dumpoffset;
+    int tmp;
+    int err;
+    int i;
+
+    bufindex = 0;
+
+    do {
+      last_bufindex = bufindex;
+      tmp = bufindex;
+      buf[0] = '#';             // make it obvious if hdr.print doesn't print anything
+      err = rsp_hdr.print(buf, NNN, &bufindex, &tmp);
+
+      // printf("test_header: tmp = %d  err = %d  bufindex = %d\n", tmp, err, bufindex);
+      putchar('{');
+      for (i = 0; i < bufindex - last_bufindex; i++) {
+        if (!iscntrl(buf[i]))
+          putchar(buf[i]);
+        else
+          printf("\\%o", buf[i]);
+      }
+      putchar('}');
+    } while (!err);
+  }
+
+  // rsp_hdr.print (NULL, 0, NULL, NULL);
+
+  req_hdr.destroy();
+  rsp_hdr.destroy();
+}
+
+
+static void
+test_http()
+{
+  printf("   <<< MUST BE HAND-VERIFIED >>>\n\n");
+
+  static const char request0[] = {
+    "GET http://www.news.com:80/ HTTP/1.0\r\n"
+      "Proxy-Connection: Keep-Alive\r\n"
+      "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.33 i586)\r\n"
+      "Pragma: no-cache\r\n"
+      "Host: www.news.com\r\n"
+      "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n"
+      "Accept-Language: en\r\n"
+      "Accept-Charset: iso-8859-1, *, utf-8\r\n"
+      "Cookie: u_vid_0_0=00031ba3; s_cur_0_0=0101sisi091314775496e7d3Jx4+POyJakrMybmNOsq6XOn5bVn5Z6a4Ln5crU5M7Rxq2lm5aWpqupo20=; SC_Cnet001=Sampled; SC_Cnet002=Sampled\r\n"
+      "Client-ip: D1012148\r\n" "Foo: abcdefghijklmnopqrtu\r\n" "\r\n"
+  };
+
+  static const char request09[] = {
+    "GET /index.html\r\n" "\r\n"
+  };
+
+  static const char request1[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+      "Referer: http://people.netscape.com/jwz/index.html\r\n"
+      "Proxy-Connection: Keep-Alive\r\n"
+      "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+      "Pragma: no-cache\r\n"
+      "Host: people.netscape.com\r\n" "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n" "\r\n"
+  };
+
+  static const char request_no_colon[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+      "Referer http://people.netscape.com/jwz/index.html\r\n"
+      "Proxy-Connection Keep-Alive\r\n"
+      "User-Agent  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+      "Pragma no-cache\r\n"
+      "Host people.netscape.com\r\n" "Accept image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n" "\r\n"
+  };
+
+  static const char request_no_val[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since:\r\n" "Referer:     " "Proxy-Connection:\r\n" "User-Agent:     \r\n" "Host:::\r\n" "\r\n"
+  };
+
+  static const char request_multi_fblock[] = {
+    "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+      "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+      "Referer: http://people.netscape.com/jwz/index.html\r\n"
+      "Proxy-Connection: Keep-Alive\r\n"
+      "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+      "Pragma: no-cache\r\n"
+      "Host: people.netscape.com\r\n"
+      "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n"
+      "X-1: blah\r\n"
+      "X-2: blah\r\n"
+      "X-3: blah\r\n"
+      "X-4: blah\r\n"
+      "X-5: blah\r\n"
+      "X-6: blah\r\n"
+      "X-7: blah\r\n"
+      "X-8: blah\r\n"
+      "X-9: blah\r\n"
+      "Pragma: no-cache\r\n"
+      "X-X-1: blah\r\n"
+      "X-X-2: blah\r\n"
+      "X-X-3: blah\r\n"
+      "X-X-4: blah\r\n" "X-X-5: blah\r\n" "X-X-6: blah\r\n" "X-X-7: blah\r\n" "X-X-8: blah\r\n" "X-X-9: blah\r\n" "\r\n"
+  };
+
+  static const char request_leading_space[] = {
+    " GET http://www.news.com:80/ HTTP/1.0\r\n"
+      "Proxy-Connection: Keep-Alive\r\n" "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.33 i586)\r\n" "\r\n"
+  };
+
+  static const char request_padding[] = {
+    "GET http://www.padding.com:80/ HTTP/1.0\r\n" "X-1: blah1\r\n"
+      //       "X-2:  blah2\r\n"
+      "X-3:   blah3\r\n"
+      //       "X-4:    blah4\r\n"
+      "X-5:     blah5\r\n"
+      //       "X-6:      blah6\r\n"
+      "X-7:       blah7\r\n"
+      //       "X-8:        blah8\r\n"
+    "X-9:         blah9\r\n" "\r\n"
+  };
+
+  static const char request_09p[] = {
+    "GET http://www.news09.com/\r\n" "\r\n"
+  };
+
+  static const char request_09ht[] = {
+    "GET http://www.news09.com/ HT\r\n" "\r\n"
+  };
+
+  static const char request_11[] = {
+    "GET http://www.news.com/ HTTP/1.1\r\n" "Connection: close\r\n" "\r\n"
+  };
+
+  static const char request_unterminated[] = {
+    "GET http://www.unterminated.com/ HTTP/1.1"
+  };
+
+  static const char request_blank[] = {
+    "\r\n"
+  };
+
+  static const char request_blank2[] = {
+    "\r\n" "\r\n"
+  };
+
+  static const char request_blank3[] = {
+    "     " "\r\n"
+  };
+
+  ////////////////////////////////////////////////////
+
+  static const char response0[] = {
+    "HTTP/1.0 200 OK\r\n"
+      "MIME-Version: 1.0\r\n"
+      "Server: WebSTAR/2.1 ID/30013\r\n"
+      "Content-Type: text/html\r\n"
+      "Content-Length: 939\r\n" "Last-Modified: Thursday, 01-Jan-04 05:00:00 GMT\r\n" "\r\n"
+  };
+
+  static const char response1[] = {
+    "HTTP/1.0 200 OK\r\n"
+      "Server: Netscape-Communications/1.12\r\n"
+      "Date: Tuesday, 08-Dec-98 20:32:17 GMT\r\n" "Content-Type: text/html\r\n" "\r\n"
+  };
+
+  static const char response_no_colon[] = {
+    "HTTP/1.0 200 OK\r\n"
+      "Server Netscape-Communications/1.12\r\n"
+      "Date: Tuesday, 08-Dec-98 20:32:17 GMT\r\n" "Content-Type: text/html\r\n" "\r\n"
+  };
+
+  static const char response_unterminated[] = {
+    "HTTP/1.0 200 OK"
+  };
+
+  static const char response09[] = {
+    ""
+  };
+
+  static const char response_blank[] = {
+    "\r\n"
+  };
+
+  static const char response_blank2[] = {
+    "\r\n" "\r\n"
+  };
+
+  static const char response_blank3[] = {
+    "     " "\r\n"
+  };
+
+
+
+  test_http_aux(request0, response0);
+  test_http_aux(request09, response09);
+  test_http_aux(request1, response1);
+  test_http_aux(request_no_colon, response_no_colon);
+  test_http_aux(request_no_val, response_no_colon);
+  test_http_aux(request_leading_space, response0);
+  test_http_aux(request_multi_fblock, response0);
+  test_http_aux(request_padding, response0);
+  test_http_aux(request_09p, response0);
+  test_http_aux(request_09ht, response0);
+  test_http_aux(request_11, response0);
+  test_http_aux(request_unterminated, response_unterminated);
+  test_http_aux(request_blank, response_blank);
+  test_http_aux(request_blank2, response_blank2);
+  test_http_aux(request_blank3, response_blank3);
+}
+
+static void
+test_http_mutation()
+{
+  bri_box("test_http_mutation");
+
+  printf("   <<< MUST BE HAND-VERIFIED >>>\n\n");
+
+  HTTPHdr resp_hdr;
+  int err, i;
+  HTTPParser parser;
+  const char base_resp[] = "HTTP/1.0 200 OK\r\n\r\n";
+  const char *start, *end;
+
+    /*** (1) parse the response string into req_hdr ***/
+
+  start = base_resp;
+  end = start + strlen(start);
+
+  http_parser_init(&parser);
+
+  resp_hdr.create(HTTP_TYPE_RESPONSE);
+
+  while (start < end) {
+    err = resp_hdr.parse_resp(&parser, &start, end, false);
+    if (err != PARSE_CONT)
+      break;
+    end = start + strlen(start);
+  }
+
+  printf("\n======== before mutation ==========\n\n");
+  printf("\n[");
+  resp_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+    /*** (2) add in a bunch of header fields ****/
+  char field_name[1024];
+  char field_value[1024];
+  for (i = 1; i <= 100; i++) {
+    sprintf(field_name, "Test%d", i);
+    sprintf(field_value, "%d %d %d %d %d", i, i, i, i, i);
+    resp_hdr.value_set(field_name, strlen(field_name), field_value, strlen(field_value));
+  }
+
+    /**** (3) delete all the even numbered fields *****/
+  for (i = 2; i <= 100; i += 2) {
+    sprintf(field_name, "Test%d", i);
+    resp_hdr.field_delete(field_name, strlen(field_name));
+  }
+
+    /***** (4) add in secondary fields for all multiples of 3 ***/
+  for (i = 3; i <= 100; i += 3) {
+    sprintf(field_name, "Test%d", i);
+    MIMEField *f = resp_hdr.field_create(field_name, strlen(field_name));
+    resp_hdr.field_attach(f);
+    sprintf(field_value, "d %d %d %d %d %d", i, i, i, i, i);
+    f->value_set(resp_hdr.m_heap, resp_hdr.m_mime, field_value, strlen(field_value));
+
+  }
+
+    /***** (5) append all fields with multiples of 5 ***/
+  for (i = 5; i <= 100; i += 5) {
+    sprintf(field_name, "Test%d", i);
+    sprintf(field_value, "a %d", i);
+
+    resp_hdr.value_append(field_name, strlen(field_name), field_value, strlen(field_value), true);
+  }
+
+    /**** (6) delete all multiples of nine *****/
+  for (i = 9; i <= 100; i += 9) {
+    sprintf(field_name, "Test%d", i);
+    resp_hdr.field_delete(field_name, strlen(field_name));
+  }
+
+
+  printf("\n======== mutated response ==========\n\n");
+  printf("\n[");
+  resp_hdr.print(NULL, 0, NULL, NULL);
+  printf("]\n\n");
+
+  resp_hdr.destroy();
+}
+
+static int
+test_arena_aux(Arena * arena, int len)
+{
+  char *str = arena->str_alloc(len);
+  int verify_len = arena->str_length(str);
+
+  if (len != verify_len) {
+    printf("FAILED: reuqested %d, got %u bytes\n", len, verify_len);
+    return (1);                 // 1 error
+  } else {
+    return (0);                 // no errors
+  }
+}
+
+
+static void
+test_arena()
+{
+  bri_box("test_arena");
+
+  Arena *arena;
+  char *str;
+  int failures = 0;
+
+  arena = new Arena;
+
+  failures += test_arena_aux(arena, 1);
+  failures += test_arena_aux(arena, 127);
+  failures += test_arena_aux(arena, 128);
+  failures += test_arena_aux(arena, 129);
+  failures += test_arena_aux(arena, 255);
+  failures += test_arena_aux(arena, 256);
+  failures += test_arena_aux(arena, 16384);
+  failures += test_arena_aux(arena, 16385);
+  failures += test_arena_aux(arena, 16511);
+  failures += test_arena_aux(arena, 16512);
+  failures += test_arena_aux(arena, 2097152);
+  failures += test_arena_aux(arena, 2097153);
+  failures += test_arena_aux(arena, 2097279);
+  failures += test_arena_aux(arena, 2097280);
+
+  delete arena;
+
+  printf("*** %s ***\n", (failures ? "FAILED" : "PASSED"));
+}
+
+
+static void
+test_regex()
+{
+  DFA dfa;
+
+  bri_box("test_regex");
+
+  printf("   <<< MUST BE HAND-VERIFIED >>>\n\n");
+
+  dfa.compile("(.*\\.inktomi\\.com#1#)|(.*\\.inktomi\\.org#2#)");
+  printf("match www.example.com [%d]\n", dfa.match("www.example.com"));
+  printf("match www.apache.org [%d]\n", dfa.match("www.apache.org"));
+}
+
+
+static void
+test_accept_language_match()
+{
+  bri_box("test_accept_language_match");
+
+  struct
+  {
+    char *content_language;
+    char *accept_language;
+    float Q;
+    int L;
+    int I;
+  } test_cases[] = {
+    {
+    "en", "*", 1.0, 1, 1}, {
+    "en", "fr", 0.0, 0, 0}, {
+    "en", "de, fr, en;q=0.7", 0.7, 2, 3}, {
+    "en-cockney", "de, fr, en;q=0.7", 0.7, 3, 3}, {
+    "en-cockney", "de, fr, en-foobar;q=0.8, en;q=0.7", 0.7, 2, 4}, {
+    "en-cockney", "de, fr, en-cockney;q=0.8, en;q=0.7", 0.8, 10, 3}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.7", 0.8, 2, 3}, {
+    "en-cockney", "de, fr, en;q=0.7, en;q=0.8", 0.8, 2, 4}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.8", 0.8, 2, 3}, {
+    "en-cockney", "de, fr, en-cockney;q=0.7, en;q=0.8", 0.7, 10, 3}, {
+    "en-cockney", "de, fr, en;q=0.8, en-cockney;q=0.7", 0.7, 10, 4}, {
+    "en-cockney", "de, fr, en-cockney;q=0.8, en;q=0.8", 0.8, 10, 3}, {
+    "en-cockney", "de, fr, en-cockney;q=0.8, en;q=0.7", 0.8, 10, 3}, {
+    "en-cockney", "de, fr, en-american", 0.0, 0, 0}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.8, *", 0.8, 2, 3}, {
+    "en-cockney", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9", 0.8, 2, 3}, {
+    "en-foobar", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9", 0.8, 2, 3}, {
+    "oo-foobar", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9", 0.9, 1, 5}, {
+    "oo-foobar", "de, fr, en;q=0.8, en;q=0.8, *;q=0.9, *", 1.0, 1, 6}, {
+    "oo-foobar", "de, fr, en;q=0.8, en;q=0.8, *, *;q=0.9", 1.0, 1, 5}, {
+    "fr-belgian", "de, fr;hi-there;q=0.9, fr;q=0.8, en", 0.9, 2, 2}, {
+    "fr-belgian", "de, fr;q=0.8, fr;hi-there;q=0.9, en", 0.9, 2, 3}, {
+    NULL, NULL, 0.0}
+  };
+
+  int i, I, L;
+  float Q;
+  int failures = 0;
+
+  for (i = 0; test_cases[i].accept_language; i++) {
+    Q = HttpCompat::match_accept_language(test_cases[i].content_language,
+                                          strlen(test_cases[i].content_language),
+                                          test_cases[i].accept_language, strlen(test_cases[i].accept_language), &L, &I);
+
+    if (Q != test_cases[i].Q) {
+      printf
+        ("FAILED: got { Q = %.3f; L = %d; I = %d; }, expected { Q = %.3f; L = %d; I = %d; }, from matching\n  '%s' against '%s'\n",
+         Q, L, I, test_cases[i].Q, test_cases[i].L, test_cases[i].I, test_cases[i].content_language,
+         test_cases[i].accept_language);
+      ++failures;
+    }
+  }
+
+  printf("*** %s ***\n", (failures ? "FAILED" : "PASSED"));
+}
+
+static void
+test_str_replace_slice()
+{
+  bri_box("test_str_replace_slice");
+
+  int len;
+  char buff[256];
+  HdrHeap *heap = new_HdrHeap();
+  const char *orig, *targ, *repl, *good, *retr;
+  int failures = 0;
+
+  // (1) prepend
+  ink_strlcpy(buff, "de, fr, en", sizeof(buff));
+  targ = buff + 0;
+  repl = "oo, ";
+  good = "oo, de, fr, en";
+  retr = mime_field_value_str_replace_slice(heap, &len, buff, strlen(buff), targ, 0, repl, strlen(repl));
+  if ((len != strlen(good)) || (memcmp(good, retr, len) != 0)) {
+    printf("FAILED: expected %d byte str \"%s\", got %d byte str \"%.*s\"\n", strlen(good), good, len, len, retr);
+    ++failures;
+  }
+  // (2) append
+  ink_strlcpy(buff, "de, fr, en", sizeof(buff));
+  targ = buff + 10;
+  repl = ", bloop";
+  good = "de, fr, en, bloop";
+  retr = mime_field_value_str_replace_slice(heap, &len, buff, strlen(buff), targ, 0, repl, strlen(repl));
+  if ((len != strlen(good)) || (memcmp(good, retr, len) != 0)) {
+    printf("FAILED: expected %d byte str \"%s\", got %d byte str \"%.*s\"\n", strlen(good), good, len, len, retr);
+    ++failures;
+  }
+  // (3) delete middle
+  ink_strlcpy(buff, "de, fr, en", sizeof(buff));
+  targ = buff + 4;
+  repl = "";
+  good = "de, en";
+  retr = mime_field_value_str_replace_slice(heap, &len, buff, strlen(buff), targ, 4, repl, strlen(repl));
+  if ((len != strlen(good)) || (memcmp(good, retr, len) != 0)) {
+    printf("FAILED: expected %d byte str \"%s\", got %d byte str \"%.*s\"\n", strlen(good), good, len, len, retr);
+    ++failures;
+  }
+
+  printf("*** %s ***\n", (failures ? "FAILED" : "PASSED"));
+}
+
+static void
+bri_box(char *s)
+{
+  int i, len;
+
+  len = strlen(s);
+  printf("\n+-");
+  for (i = 0; i < len; i++)
+    putchar('-');
+  printf("-+\n");
+  printf("| %s |\n", s);
+  printf("+-");
+  for (i = 0; i < len; i++)
+    putchar('-');
+  printf("-+\n\n");
+}
diff --git a/proxy/hdrs/test_urlhash.cc b/proxy/hdrs/test_urlhash.cc
new file mode 100644
index 00000000..9456563a
--- /dev/null
+++ b/proxy/hdrs/test_urlhash.cc
@@ -0,0 +1,90 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "Arena.h"
+#include "HTTP.h"
+#include "MIME.h"
+#include "Regex.h"
+#include "URL.h"
+#include "HttpCompat.h"
+
+static void
+test_url()
+{
+  url_hash_method = 1;
+
+  static const char *strs[] = {
+    "http://npdev:19080/1.6664000000/4000",
+    "http://npdev:19080/1.8666000000/4000"
+  };
+  static int nstrs = sizeof(strs) / sizeof(strs[0]);
+
+  int err, failed;
+  URL url;
+  const char *start;
+  const char *end;
+  int i, old_length, new_length;
+
+  failed = 0;
+  for (i = 0; i < nstrs; i++) {
+    old_length = strlen(strs[i]);
+    start = strs[i];
+    end = start + old_length;
+
+    url.create(NULL);
+    err = url.parse(&start, end);
+    if (err < 0) {
+      failed = 1;
+      break;
+    }
+
+    INK_MD5 md5;
+    url.MD5_get(&md5);
+    //url_MD5_get(url.m_url_impl, &md5);
+    unsigned int *h = (unsigned int *) &md5;
+    printf("(%s)\n", strs[i]);
+    printf("%X %X %X %X\n", h[0], h[1], h[2], h[3]);
+
+    url.destroy();
+  }
+
+  printf("*** %s ***\n", (failed ? "FAILED" : "PASSED"));
+}
+
+int
+main(int argc, char *argv[])
+{
+  hdrtoken_init();
+  url_init();
+  mime_init();
+  http_init();
+
+  test_url();
+
+  return 0;
+}
diff --git a/proxy/http/HttpBodyFactory.cc b/proxy/http/HttpBodyFactory.cc
new file mode 100644
index 00000000..ee248a7a
--- /dev/null
+++ b/proxy/http/HttpBodyFactory.cc
@@ -0,0 +1,1019 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  HttpBodyFactory.cc
+
+
+ ****************************************************************************/
+
+#include "libts.h"
+#include "HttpBodyFactory.h"
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "URL.h"
+#include <logging/Log.h>
+#include <logging/LogAccess.h>
+#include <logging/LogAccessHttp.h>
+#include "HttpCompat.h"
+#include "I_Layout.h"
+
+//////////////////////////////////////////////////////////////////////
+// The HttpBodyFactory creates HTTP response page bodies, supported //
+// configurable customization and language-targeting.               //
+//                                                                  //
+// The body factory can be reconfigured dynamically by a manager    //
+// callback, so locking is required.  The callback takes a lock,    //
+// and the user entry points take a lock.  These locks may limit    //
+// the speed of error page generation.                              //
+//////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+//
+// User-Callable APIs --- locks will be taken internally
+//
+////////////////////////////////////////////////////////////////////////
+
+char *
+HttpBodyFactory::fabricate_with_old_api(const char *type, HttpTransact::State * context,
+                                        int64_t max_buffer_length, int64_t *resulting_buffer_length,
+                                        char* content_language_out_buf, size_t content_language_buf_size,
+                                        char* content_type_out_buf, size_t content_type_buf_size,
+                                        const char *format, va_list ap)
+{
+  char *buffer = NULL;
+  const char *lang_ptr = NULL;
+  const char *charset_ptr = NULL;
+  char url[1024];
+  const char *set = NULL;
+  bool found_requested_template = false;
+  bool plain_flag = false;
+
+  lock();
+
+  *resulting_buffer_length = 0;
+
+  ink_strlcpy(content_language_out_buf, "en", content_language_buf_size);
+  ink_strlcpy(content_type_out_buf, "text/html", content_type_buf_size);
+
+  ///////////////////////////////////////////////////////////////////
+  // if logging turned on, buffer up the URL string for simplicity //
+  ///////////////////////////////////////////////////////////////////
+  if (enable_logging) {
+    url[0] = '\0';
+    URL *u = context->hdr_info.client_request.url_get();
+
+    if (u->valid()) {           /* if url exists, copy the string into buffer */
+      size_t i;
+      char *s = u->string_get(&context->arena);
+      for (i = 0; (i < sizeof(url) - 1) && s[i]; i++)
+        url[i] = s[i];
+      url[i] = '\0';
+      if (s)
+        context->arena.str_free(s);
+    }
+  }
+  ///////////////////////////////////////////////
+  // if suppressing this response, return NULL //
+  ///////////////////////////////////////////////
+  if (is_response_suppressed(context)) {
+    if (enable_logging) {
+      Log::error("BODY_FACTORY: suppressing '%s' response for url '%s'", type, url);
+    }
+    unlock();
+    return (NULL);
+  }
+  //////////////////////////////////////////////////////////////////////////////////
+  // if language-targeting activated, get client Accept-Language & Accept-Charset //
+  //////////////////////////////////////////////////////////////////////////////////
+
+  StrList acpt_language_list(false);
+  StrList acpt_charset_list(false);
+
+  if (enable_customizations == 2) {
+    context->hdr_info.client_request.value_get_comma_list(MIME_FIELD_ACCEPT_LANGUAGE, MIME_LEN_ACCEPT_LANGUAGE,
+                                                          &acpt_language_list);
+    context->hdr_info.client_request.value_get_comma_list(MIME_FIELD_ACCEPT_CHARSET, MIME_LEN_ACCEPT_CHARSET,
+                                                          &acpt_charset_list);
+  }
+  ///////////////////////////////////////////
+  // check if we don't need to format body //
+  ///////////////////////////////////////////
+  if (format) {
+    int l = ink_bvsprintf(NULL, format, ap);
+    if (l < max_buffer_length) {
+      buffer = (char *)ats_malloc(l + 1);
+      *resulting_buffer_length = ink_bvsprintf(buffer, format, ap);
+      plain_flag = true;
+    }
+  }
+  /////////////////////////////////////////////////////////
+  // try to fabricate the desired type of error response //
+  /////////////////////////////////////////////////////////
+  if (buffer == NULL) {
+    buffer = fabricate(&acpt_language_list, &acpt_charset_list,
+                       type, context, resulting_buffer_length, &lang_ptr, &charset_ptr, &set);
+    found_requested_template = (buffer != NULL);
+  }
+  /////////////////////////////////////////////////////////////
+  // if failed, try to fabricate the default custom response //
+  /////////////////////////////////////////////////////////////
+  if (buffer == NULL) {
+    buffer = fabricate(&acpt_language_list, &acpt_charset_list,
+                       "default", context, resulting_buffer_length, &lang_ptr, &charset_ptr, &set);
+  }
+  ///////////////////////////////////
+  // enforce the max buffer length //
+  ///////////////////////////////////
+  if (buffer && (*resulting_buffer_length > max_buffer_length)) {
+    if (enable_logging) {
+      Log::error(("BODY_FACTORY: template '%s/%s' consumed %" PRId64 " bytes, "
+                  "exceeding %" PRId64 " byte limit, using internal default"),
+                 set, type, *resulting_buffer_length, max_buffer_length);
+    }
+    *resulting_buffer_length = 0;
+    buffer = (char *)ats_free_null(buffer);
+  }
+  /////////////////////////////////////////////////////////////////////
+  // handle return of instantiated template and generate the content //
+  // language and content type return values                         //
+  /////////////////////////////////////////////////////////////////////
+
+  if (buffer) {                  // got an instantiated template
+    if (!plain_flag) {
+      snprintf(content_language_out_buf, content_language_buf_size, "%s", lang_ptr);
+      snprintf(content_type_out_buf, content_type_buf_size, "text/html; charset=%s", charset_ptr);
+    }
+
+    if (enable_logging) {
+      if (found_requested_template) {    // got exact template
+        Log::error(("BODY_FACTORY: using custom template "
+                    "'%s/%s' for url '%s' (language '%s', charset '%s')"), set, type, url, lang_ptr, charset_ptr);
+      } else {                   // got default template
+        Log::error(("BODY_FACTORY: can't find custom template "
+                    "'%s/%s', using '%s/%s' for url '%s' (language '%s', charset '%s')"),
+                   set, type, set, "default", url, lang_ptr, charset_ptr);
+      }
+    }
+  } else {                       // no template
+    if (enable_logging) {
+        Log::error(("BODY_FACTORY: can't find templates '%s' or '%s' for url `%s'"),
+                   type, "default", url);
+    }
+  }
+  unlock();
+
+  return (buffer);
+}
+
+void
+HttpBodyFactory::dump_template_tables(FILE * fp)
+{
+  RawHashTable *h1, *h2;
+  RawHashTable_Key k1, k2;
+  RawHashTable_Value v1, v2;
+  RawHashTable_Binding *b1, *b2;
+  RawHashTable_IteratorState i1, i2;
+  HttpBodySet *body_set;
+
+  lock();
+
+  h1 = table_of_sets;
+
+  if (h1 != NULL) {
+    ///////////////////////////////////////////
+    // loop over set->body-types hash table //
+    ///////////////////////////////////////////
+
+    for (b1 = h1->firstBinding(&i1); b1 != NULL; b1 = h1->nextBinding(&i1)) {
+      k1 = table_of_sets->getKeyFromBinding(b1);
+      v1 = table_of_sets->getValueFromBinding(b1);
+      body_set = (HttpBodySet *) v1;
+
+      if (body_set != NULL) {
+        fprintf(fp, "set %s: name '%s', lang '%s', charset '%s'\n",
+                k1, body_set->set_name, body_set->content_language, body_set->content_charset);
+
+        ///////////////////////////////////////////
+        // loop over body-types->body hash table //
+        ///////////////////////////////////////////
+
+        ink_assert(body_set->is_sane());
+        h2 = body_set->table_of_pages;
+
+        for (b2 = h2->firstBinding(&i2); b2 != NULL; b2 = h2->nextBinding(&i2)) {
+          k2 = table_of_sets->getKeyFromBinding(b2);
+          v2 = table_of_sets->getValueFromBinding(b2);
+          HttpBodyTemplate *t = (HttpBodyTemplate *) v2;
+
+          fprintf(fp, "  %-30s: %" PRId64 " bytes\n", k2, t->byte_count);
+        }
+      }
+    }
+  }
+
+  unlock();
+}
+
+
+////////////////////////////////////////////////////////////////////////
+//
+// Configuration Change Callback
+//
+////////////////////////////////////////////////////////////////////////
+
+static int
+config_callback(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                RecData /* data ATS_UNUSED */, void *cookie)
+{
+  HttpBodyFactory *body_factory = (HttpBodyFactory *) cookie;
+  body_factory->reconfigure();
+  return (0);
+}
+
+void
+HttpBodyFactory::reconfigure()
+//#endif
+{
+  RecInt e;
+  RecString s = NULL;
+  bool all_found;
+  int rec_err;
+
+  lock();
+  sanity_check();
+
+  if (!callbacks_established) {
+    unlock();
+    return;
+  }                             // callbacks not setup right
+
+  ////////////////////////////////////////////
+  // extract relevant records.config values //
+  ////////////////////////////////////////////
+
+  Debug("body_factory", "config variables changed, reconfiguring...");
+
+  all_found = true;
+
+  // enable_customizations if records.config set
+  rec_err = RecGetRecordInt("proxy.config.body_factory.enable_customizations", &e);
+  enable_customizations = ((rec_err == REC_ERR_OKAY) ? e : 0);
+  all_found = all_found && (rec_err == REC_ERR_OKAY);
+  Debug("body_factory", "enable_customizations = %d (found = %" PRId64")", enable_customizations, e);
+
+  rec_err = RecGetRecordInt("proxy.config.body_factory.enable_logging", &e);
+  enable_logging = ((rec_err == REC_ERR_OKAY) ? (e ? true : false) : false);
+  all_found = all_found && (rec_err == REC_ERR_OKAY);
+  Debug("body_factory", "enable_logging = %d (found = %" PRId64")", enable_logging, e);
+
+  rec_err = RecGetRecordInt("proxy.config.body_factory.response_suppression_mode", &e);
+  response_suppression_mode = ((rec_err == REC_ERR_OKAY) ? e : 0);
+  all_found = all_found && (rec_err == REC_ERR_OKAY);
+  Debug("body_factory", "response_suppression_mode = %d (found = %" PRId64")", response_suppression_mode, e);
+
+  xptr<char> directory_of_template_sets;
+
+  rec_err = RecGetRecordString_Xmalloc("proxy.config.body_factory.template_sets_dir", &s);
+  all_found = all_found && (rec_err == REC_ERR_OKAY);
+  if (rec_err == REC_ERR_OKAY) {
+    directory_of_template_sets = Layout::get()->relative(s);
+    if (access(directory_of_template_sets, R_OK) < 0) {
+      Warning("Unable to access() directory '%s': %d, %s", (const char *)directory_of_template_sets, errno, strerror(errno));
+      Warning(" Please set 'proxy.config.body_factory.template_sets_dir' ");
+    }
+
+  }
+
+  Debug("body_factory", "directory_of_template_sets = '%s' (found = %s)", (const char *)directory_of_template_sets, s);
+  ats_free(s);
+
+  if (!all_found) {
+    Warning("config changed, but can't fetch all proxy.config.body_factory values");
+  }
+
+  /////////////////////////////////////////////
+  // clear out previous template hash tables //
+  /////////////////////////////////////////////
+
+  nuke_template_tables();
+
+  /////////////////////////////////////////////////////////////
+  // at this point, the body hash table is gone, so we start //
+  // building a new one, by scanning the template directory. //
+  /////////////////////////////////////////////////////////////
+
+  if (directory_of_template_sets)
+    table_of_sets = load_sets_from_directory(directory_of_template_sets);
+
+  unlock();
+}
+
+////////////////////////////////////////////////////////////////////////
+//
+// class HttpBodyFactory
+//
+////////////////////////////////////////////////////////////////////////
+
+HttpBodyFactory::HttpBodyFactory()
+{
+  int i;
+  bool status, no_registrations_failed;
+
+  ////////////////////////////////////
+  // initialize first-time defaults //
+  ////////////////////////////////////
+
+  magic = HTTP_BODY_FACTORY_MAGIC;
+  ink_mutex_init(&mutex, "HttpBodyFactory::lock");
+
+  table_of_sets = NULL;
+  enable_customizations = 0;
+  enable_logging = true;
+  callbacks_established = false;
+
+  //////////////////////////////////////////////////////
+  // set up management configuration-change callbacks //
+  //////////////////////////////////////////////////////
+
+  static const char *config_record_names[] = {
+    "proxy.config.body_factory.enable_customizations",
+    "proxy.config.body_factory.enable_logging",
+    "proxy.config.body_factory.template_sets_dir",
+    "proxy.config.body_factory.response_suppression_mode",
+    NULL
+  };
+
+  no_registrations_failed = true;
+  for (i = 0; config_record_names[i] != NULL; i++) {
+    status = HTTP_RegisterConfigUpdateFunc(config_record_names[i], config_callback, (void *) this);
+    if (status != REC_ERR_OKAY) {
+      Warning("couldn't register variable '%s', is records.config up to date?", config_record_names[i]);
+    }
+    no_registrations_failed = no_registrations_failed && (status == REC_ERR_OKAY);
+  }
+
+  if (no_registrations_failed == false) {
+    Warning("couldn't setup all body_factory callbacks, disabling body_factory");
+  } else {
+    Debug("body_factory", "all callbacks established successfully");
+    callbacks_established = true;
+    reconfigure();
+  }
+}
+
+
+HttpBodyFactory::~HttpBodyFactory()
+{
+  // FIX: need to implement destructor
+  delete table_of_sets;
+}
+
+
+// LOCKING: must be called with lock taken
+char *
+HttpBodyFactory::fabricate(StrList * acpt_language_list,
+                           StrList * acpt_charset_list,
+                           const char *type, HttpTransact::State * context,
+                           int64_t *buffer_length_return,
+                           const char **content_language_return,
+                           const char **content_charset_return, const char **set_return)
+{
+  char *buffer;
+  const char *set;
+  HttpBodyTemplate *t;
+  HttpBodySet *body_set;
+
+  if (set_return)
+    *set_return = "???";
+  *content_language_return = NULL;
+  *content_charset_return = NULL;
+
+  Debug("body_factory", "calling fabricate(type '%s')", type);
+  *buffer_length_return = 0;
+
+  // if error body suppressed, return NULL
+  if (is_response_suppressed(context)) {
+    Debug("body_factory", "  error suppression enabled, returning NULL template");
+    return (NULL);
+  }
+  // if custom error pages are disabled, return NULL
+  if (!enable_customizations) {
+    Debug("body_factory", "  customization disabled, returning NULL template");
+    return (NULL);
+  }
+  // what set should we use (language target if enable_customizations == 2)
+  if (enable_customizations == 2)
+    set = determine_set_by_language(acpt_language_list, acpt_charset_list);
+  else
+    set = "default";
+
+  if (set_return)
+    *set_return = set;
+
+  // see if we have a custom error page template
+  t = find_template(set, type, &body_set);
+  if (t == NULL) {
+    Debug("body_factory", "  can't find template, returning NULL template");
+    return (NULL);
+  }
+
+  *content_language_return = body_set->content_language;
+  *content_charset_return = body_set->content_charset;
+
+  // build the custom error page
+  buffer = t->build_instantiated_buffer(context, buffer_length_return);
+  return (buffer);
+}
+
+
+// LOCKING: must be called with lock taken
+const char *
+HttpBodyFactory::determine_set_by_language(StrList * acpt_language_list, StrList * acpt_charset_list)
+{
+  float Q_best;
+  const char *set_best;
+  int La_best, Lc_best, I_best;
+
+  set_best = HttpCompat::determine_set_by_language(table_of_sets, acpt_language_list, acpt_charset_list,
+                                                   &Q_best, &La_best, &Lc_best, &I_best);
+
+  return (set_best);
+}
+
+// LOCKING: must be called with lock taken
+HttpBodyTemplate *
+HttpBodyFactory::find_template(const char *set, const char *type, HttpBodySet ** body_set_return)
+{
+  RawHashTable_Value v;
+
+  Debug("body_factory", "calling find_template(%s,%s)", set, type);
+
+  *body_set_return = NULL;
+
+  if (table_of_sets == NULL)
+    return (NULL);
+  if (table_of_sets->getValue((RawHashTable_Key) set, &v)) {
+    HttpBodySet *body_set = (HttpBodySet *) v;
+    RawHashTable *table_of_types = body_set->table_of_pages;
+
+    if (table_of_types == NULL)
+      return (NULL);
+
+    if (table_of_types->getValue((RawHashTable_Key) type, &v)) {
+      HttpBodyTemplate *t = (HttpBodyTemplate *) v;
+      if ((t == NULL) || (!t->is_sane()))
+        return (NULL);
+      *body_set_return = body_set;
+
+      Debug("body_factory", "find_template(%s,%s) -> (file %s, length %" PRId64", lang '%s', charset '%s')",
+            set, type, t->template_pathname, t->byte_count, body_set->content_language, body_set->content_charset);
+
+      return (t);
+    }
+  }
+  Debug("body_factory", "find_template(%s,%s) -> NULL", set, type);
+
+  return (NULL);
+}
+
+
+// LOCKING: must be called with lock taken
+bool
+HttpBodyFactory::is_response_suppressed(HttpTransact::State * context)
+{
+  // Since a tunnel may not always be an SSL connection,
+  // we may want to return an error message.
+  // Even if it's an SSL connection, it won't cause any harm
+  // as the connection is going to be closed anyway.
+  /*
+     if (context->client_info.port_attribute == SERVER_PORT_BLIND_TUNNEL) {
+     // Blind SSL tunnels always supress error messages
+     return true;
+     } else
+   */
+  if (response_suppression_mode == 0) {
+    return (false);
+  } else if (response_suppression_mode == 1) {
+    return (true);
+  } else if (response_suppression_mode == 2) {
+    if (context->req_flavor == HttpTransact::REQ_FLAVOR_INTERCEPTED)
+      return (true);
+    else
+      return (false);
+  } else {
+    return (false);
+  }
+}
+
+
+// LOCKING: must be called with lock taken
+void
+HttpBodyFactory::nuke_template_tables()
+{
+  RawHashTable *h1, *h2;
+  RawHashTable_Value v1, v2;
+  RawHashTable_Binding *b1, *b2;
+  RawHashTable_IteratorState i1, i2;
+  HttpBodySet *body_set;
+  HttpBodyTemplate *hbt;
+
+  h1 = table_of_sets;
+
+  if (h1) {
+    Debug("body_factory", "deleting pre-existing template tables");
+  } else {
+    Debug("body_factory", "no pre-existing template tables");
+  }
+  if (h1 != NULL) {
+    ///////////////////////////////////////////
+    // loop over set->body-types hash table //
+    ///////////////////////////////////////////
+
+    for (b1 = h1->firstBinding(&i1); b1 != NULL; b1 = h1->nextBinding(&i1)) {
+      v1 = h1->getValueFromBinding(b1);
+
+      body_set = (HttpBodySet *) v1;
+      ink_assert(body_set->is_sane());
+      h2 = body_set->table_of_pages;
+
+      if (h2 != NULL) {
+        body_set->table_of_pages = NULL;
+
+        ///////////////////////////////////////////
+        // loop over body-types->body hash table //
+        ///////////////////////////////////////////
+
+        for (b2 = h2->firstBinding(&i2); b2 != NULL; b2 = h2->nextBinding(&i2)) {
+          v2 = h2->getValueFromBinding(b2);
+          if (v2) {
+            // need a cast here
+            hbt = (HttpBodyTemplate *) v2;
+            delete hbt;
+          }
+        }
+
+        delete h2;
+      }
+
+      delete body_set;
+    }
+    delete h1;
+  }
+
+  table_of_sets = NULL;
+}
+
+
+// LOCKING: must be called with lock taken
+RawHashTable *
+HttpBodyFactory::load_sets_from_directory(char *set_dir)
+{
+  DIR *dir;
+  struct dirent *entry_buffer, *result;
+  RawHashTable *new_table_of_sets;
+
+  if (set_dir == NULL)
+    return (NULL);
+
+  Debug("body_factory", "load_sets_from_directory(%s)", set_dir);
+
+  //////////////////////////////////////////////////
+  // try to open the requested template directory //
+  //////////////////////////////////////////////////
+
+  dir = opendir(set_dir);
+  if (dir == NULL) {
+    Warning("can't open response template directory '%s' (%s)",
+            set_dir, (strerror(errno) ? strerror(errno) : "unknown reason"));
+    Warning("no response templates --- using default error pages");
+    return (NULL);
+  }
+
+  new_table_of_sets = new RawHashTable(RawHashTable_KeyType_String);
+  entry_buffer = (struct dirent *)ats_malloc(sizeof(struct dirent) + MAXPATHLEN + 1);
+
+  //////////////////////////////////////////
+  // loop over each language subdirectory //
+  //////////////////////////////////////////
+
+  while ((readdir_r(dir, entry_buffer, &result) == 0) && (result != NULL)) {
+    int status;
+    struct stat stat_buf;
+    char subdir[MAXPATHLEN + 1];
+
+    //////////////////////////////////////////////////////
+    // ensure a subdirectory, and not starting with '.' //
+    //////////////////////////////////////////////////////
+
+    if ((entry_buffer->d_name)[0] == '.')
+      continue;
+    ink_filepath_make(subdir, sizeof(subdir), set_dir, entry_buffer->d_name);
+    status = stat(subdir, &stat_buf);
+    if (status != 0)
+      continue;                 // can't stat
+    if (!S_ISDIR(stat_buf.st_mode))
+      continue;                 // not a dir
+
+    ///////////////////////////////////////////////////////////
+    // at this point, 'subdir' might be a valid template dir //
+    ///////////////////////////////////////////////////////////
+
+    HttpBodySet *body_set = load_body_set_from_directory(entry_buffer->d_name, subdir);
+    if (body_set != NULL) {
+      Debug("body_factory", "  %s -> %p", entry_buffer->d_name, body_set);
+      new_table_of_sets->setValue((RawHashTable_Key) (entry_buffer->d_name), (RawHashTable_Value) body_set);
+    }
+  }
+
+  ats_free(entry_buffer);
+  closedir(dir);
+
+  return (new_table_of_sets);
+}
+
+
+// LOCKING: must be called with lock taken
+HttpBodySet *
+HttpBodyFactory::load_body_set_from_directory(char *set_name, char *tmpl_dir)
+{
+  DIR *dir;
+  int status;
+  struct stat stat_buf;
+  char path[MAXPATHLEN + 1];
+  struct dirent *entry_buffer, *result;
+
+  ////////////////////////////////////////////////
+  // ensure we can open tmpl_dir as a directory //
+  ////////////////////////////////////////////////
+
+  Debug("body_factory", "  load_body_set_from_directory(%s)", tmpl_dir);
+  dir = opendir(tmpl_dir);
+  if (dir == NULL)
+    return (NULL);
+
+  /////////////////////////////////////////////
+  // ensure a .body_factory_info file exists //
+  /////////////////////////////////////////////
+
+  ink_filepath_make(path, sizeof(path), tmpl_dir, ".body_factory_info");
+  status = stat(path, &stat_buf);
+  if ((status < 0) || !S_ISREG(stat_buf.st_mode)) {
+    closedir(dir);
+    return (NULL);
+  }
+  Debug("body_factory", "    found '%s'", path);
+
+  /////////////////////////////////////////////////////////////////
+  // create body set, and loop over template files, loading them //
+  /////////////////////////////////////////////////////////////////
+
+  HttpBodySet *body_set = new HttpBodySet;
+  body_set->init(set_name, tmpl_dir);
+
+  Debug("body_factory", "  body_set = %p (set_name '%s', lang '%s', charset '%s')",
+        body_set, body_set->set_name, body_set->content_language, body_set->content_charset);
+  entry_buffer = (struct dirent *)ats_malloc(sizeof(struct dirent) + MAXPATHLEN + 1);
+
+  while ((readdir_r(dir, entry_buffer, &result) == 0) && (result != NULL)) {
+    HttpBodyTemplate *tmpl;
+
+    ///////////////////////////////////////////////////////////////
+    // all template files have name of the form <type>#<subtype> //
+    ///////////////////////////////////////////////////////////////
+
+    if ((strchr(entry_buffer->d_name, '#') == NULL) && (strcmp(entry_buffer->d_name, "default") != 0))
+      continue;
+
+    snprintf(path, sizeof(path), "%s/%s", tmpl_dir, entry_buffer->d_name);
+    status = stat(path, &stat_buf);
+    if (status != 0)
+      continue;                 // can't stat
+    if (!S_ISREG(stat_buf.st_mode))
+      continue;                 // not a file
+
+    ////////////////////////////////
+    // read in this template file //
+    ////////////////////////////////
+
+    tmpl = new HttpBodyTemplate();
+    if (!tmpl->load_from_file(tmpl_dir, entry_buffer->d_name)) {
+      delete tmpl;
+    } else {
+      Debug("body_factory", "      %s -> %p", entry_buffer->d_name, tmpl);
+      body_set->set_template_by_name(entry_buffer->d_name, tmpl);
+    }
+  }
+  ats_free(entry_buffer);
+  closedir(dir);
+  return (body_set);
+}
+
+
+////////////////////////////////////////////////////////////////////////
+//
+// class HttpBodySet
+//
+////////////////////////////////////////////////////////////////////////
+
+HttpBodySet::HttpBodySet()
+{
+  magic = HTTP_BODY_SET_MAGIC;
+
+  set_name = NULL;
+  content_language = NULL;
+  content_charset = NULL;
+
+  table_of_pages = NULL;
+}
+
+
+HttpBodySet::~HttpBodySet()
+{
+  ats_free(set_name);
+  ats_free(content_language);
+  ats_free(content_charset);
+  if (table_of_pages)
+    delete table_of_pages;
+}
+
+
+int
+HttpBodySet::init(char *set, char *dir)
+{
+  int fd, lineno, lines_added = 0;
+  char info_path[MAXPATHLEN];
+
+  char buffer[1024], name[1025], value[1024];
+
+  ink_filepath_make(info_path, sizeof(info_path), dir, ".body_factory_info");
+  fd = open(info_path, O_RDONLY | _O_ATTRIB_NORMAL);
+  if (fd < 0)
+    return (-1);
+
+  this->set_name = ats_strdup(set);
+
+  if (this->table_of_pages)
+    delete(this->table_of_pages);
+  this->table_of_pages = new RawHashTable(RawHashTable_KeyType_String);
+
+  lineno = 0;
+
+  while (1) {
+    char *name_s, *name_e, *value_s, *value_e, *hash;
+
+    ++lineno;
+    int bytes = ink_file_fd_readline(fd, sizeof(buffer), buffer);
+    if (bytes <= 0)
+      break;
+
+    ///////////////////////////////////////////////
+    // chop anything on and after first '#' sign //
+    ///////////////////////////////////////////////
+
+    hash = index(buffer, '#');
+    if (hash)
+      *hash = '\0';
+
+    ////////////////////////////////
+    // find start and end of name //
+    ////////////////////////////////
+
+    name_s = buffer;
+    while (*name_s && ParseRules::is_wslfcr(*name_s))
+      ++name_s;
+
+    name_e = name_s;
+    while (*name_e && ParseRules::is_http_field_name(*name_e))
+      ++name_e;
+
+    if (name_s == name_e)
+      continue;                 // blank line
+
+    /////////////////////////////////
+    // find start and end of value //
+    /////////////////////////////////
+
+    value_s = name_e;
+    while (*value_s && (ParseRules::is_wslfcr(*value_s)))
+      ++value_s;
+    if (*value_s != ':') {
+      Warning("ignoring invalid body factory info line #%d in %s", lineno, info_path);
+      continue;
+    }
+    ++value_s;                  // skip the colon
+    while (*value_s && (ParseRules::is_wslfcr(*value_s)))
+      ++value_s;
+    value_e = buffer + strlen(buffer) - 1;
+    while ((value_e > value_s) && ParseRules::is_wslfcr(*(value_e - 1)))
+      --value_e;
+
+    /////////////////////////////////
+    // insert line into hash table //
+    /////////////////////////////////
+
+    memcpy(name, name_s, name_e - name_s);
+    name[name_e - name_s] = '\0';
+
+    memcpy(value, value_s, value_e - value_s);
+    value[value_e - value_s] = '\0';
+
+    //////////////////////////////////////////////////
+    // so far, we only support 2 pieces of metadata //
+    //////////////////////////////////////////////////
+
+    if (strcasecmp(name, "Content-Language") == 0) {
+      ats_free(this->content_language);
+      this->content_language = ats_strdup(value);
+    } else if (strcasecmp(name, "Content-Charset") == 0) {
+      ats_free(this->content_charset);
+      this->content_charset = ats_strdup(value);
+    }
+  }
+
+  ////////////////////////////////////////////////////
+  // fill in default language & charset, if not set //
+  ////////////////////////////////////////////////////
+
+  if (!this->content_language) {
+    if (strcmp(set, "default") == 0)
+      this->content_language = ats_strdup("en");
+    else
+      this->content_language = ats_strdup(set);
+  }
+  if (!this->content_charset)
+    this->content_charset = ats_strdup("utf-8");
+
+  close(fd);
+  return (lines_added);
+}
+
+
+HttpBodyTemplate *
+HttpBodySet::get_template_by_name(const char *name)
+{
+  RawHashTable_Value v;
+
+  Debug("body_factory", "    calling get_template_by_name(%s)", name);
+
+  if (table_of_pages == NULL)
+    return (NULL);
+
+  if (table_of_pages->getValue((RawHashTable_Key) name, &v)) {
+    HttpBodyTemplate *t = (HttpBodyTemplate *) v;
+    if ((t == NULL) || (!t->is_sane()))
+      return (NULL);
+    Debug("body_factory", "    get_template_by_name(%s) -> (file %s, length %" PRId64")",
+          name, t->template_pathname, t->byte_count);
+    return (t);
+  }
+  Debug("body_factory", "    get_template_by_name(%s) -> NULL", name);
+  return (NULL);
+}
+
+
+void
+HttpBodySet::set_template_by_name(const char *name, HttpBodyTemplate * t)
+{
+  table_of_pages->setValue((RawHashTable_Key) name, (RawHashTable_Value) t);
+}
+
+////////////////////////////////////////////////////////////////////////
+//
+// class HttpBodyTemplate
+//
+////////////////////////////////////////////////////////////////////////
+
+HttpBodyTemplate::HttpBodyTemplate()
+{
+  magic = HTTP_BODY_TEMPLATE_MAGIC;
+  byte_count = 0;
+  template_buffer = NULL;
+  template_pathname = NULL;
+}
+
+
+HttpBodyTemplate::~HttpBodyTemplate()
+{
+  reset();
+}
+
+
+void
+HttpBodyTemplate::reset()
+{
+  ats_free(template_buffer);
+  template_buffer = NULL;
+  byte_count = 0;
+  ats_free(template_pathname);
+}
+
+
+int
+HttpBodyTemplate::load_from_file(char *dir, char *file)
+{
+  int fd, status;
+  int64_t bytes_read;
+  struct stat stat_buf;
+  char path[MAXPATHLEN + 1];
+  char *new_template_buffer;
+  int64_t new_byte_count;
+
+  ////////////////////////////////////
+  // ensure this is actually a file //
+  ////////////////////////////////////
+
+  snprintf(path, sizeof(path), "%s/%s", dir, file);
+  // coverity[fs_check_call]
+  status = stat(path, &stat_buf);
+  if (status != 0)
+    return (0);
+  if (!S_ISREG(stat_buf.st_mode))
+    return (0);
+
+  ///////////////////
+  // open the file //
+  ///////////////////
+
+  // coverity[toctou]
+  fd = open(path, O_RDONLY | _O_ATTRIB_NORMAL);
+  if (fd < 0)
+    return (0);
+
+  ////////////////////////////////////////
+  // read in the template file contents //
+  ////////////////////////////////////////
+
+  new_byte_count = stat_buf.st_size;
+  new_template_buffer = (char *)ats_malloc(new_byte_count + 1);
+  bytes_read = read(fd, new_template_buffer, new_byte_count);
+  new_template_buffer[new_byte_count] = '\0';
+  close(fd);
+
+  ///////////////////////////
+  // check for read errors //
+  ///////////////////////////
+
+  if (bytes_read != new_byte_count) {
+    Warning("reading template file '%s', got %" PRId64" bytes instead of %" PRId64" (%s)",
+            path, bytes_read, new_byte_count, (strerror(errno) ? strerror(errno) : "unknown error"));
+    ats_free(new_template_buffer);
+    return (0);
+  }
+
+  Debug("body_factory", "    read %" PRId64" bytes from '%s'", new_byte_count, path);
+
+  /////////////////////////////////
+  // actually commit the changes //
+  /////////////////////////////////
+
+  reset();
+  template_buffer = new_template_buffer;
+  byte_count = new_byte_count;
+  template_pathname = ats_strdup(path);
+
+  return (1);
+}
+
+char *
+HttpBodyTemplate::build_instantiated_buffer(HttpTransact::State * context, int64_t *buflen_return)
+{
+  char *buffer = NULL;
+
+  Debug("body_factory_instantiation", "    before instantiation: [%s]", template_buffer);
+
+  LogAccessHttp la(context->state_machine);
+
+  // TODO: Should we check the return code from Log::access() ?
+  Log::access(&la);
+  buffer = resolve_logfield_string((LogAccess *) & la, template_buffer);
+
+  *buflen_return = ((buffer == NULL) ? 0 : strlen(buffer));
+  Debug("body_factory_instantiation", "    after instantiation: [%s]", buffer);
+  Debug("body_factory", "  returning %" PRId64" byte instantiated buffer", *buflen_return);
+
+  return (buffer);
+}
diff --git a/proxy/http/HttpBodyFactory.h b/proxy/http/HttpBodyFactory.h
new file mode 100644
index 00000000..a2f33a5f
--- /dev/null
+++ b/proxy/http/HttpBodyFactory.h
@@ -0,0 +1,244 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  HttpBodyFactory.h
+
+  This implements a user-customizable response message generation system.
+
+  The concept is simple.  Error/response messages are classified into
+  several types, each given a name, such as "request/header_error".
+
+  The HttpBodyFactory can build a message body for each response type.
+  The user can create custom message body text for each type (stored
+  in a text file directory), containing templates with space-holders for
+  variables which are inline-substituted with curent values.  The resulting
+  body is dynamically allocated and returned.
+
+  The major data types implemented in this file are:
+
+    HttpBodyFactory       The main data structure which is the machine
+                          that maintains configuration information, reads
+                          user error message template files, and performs
+                          the substitution to generate the message bodies.
+
+    HttpBodySet           The data structure representing a set of
+                          templates, including the templates and metadata.
+
+    HttpBodyTemplate      The template loaded from the directory to be
+                          instantiated with variables, producing a body.
+
+
+ ****************************************************************************/
+
+#ifndef _HttpBodyFactory_h_
+#define _HttpBodyFactory_h_
+
+#include <strings.h>
+#include <sys/types.h>
+#include "libts.h"
+#include "HTTP.h"
+#include "HttpConfig.h"
+#include "HttpCompat.h"
+#include "HttpTransact.h"
+#include "Error.h"
+#include "Main.h"
+#include "RawHashTable.h"
+
+
+#define HTTP_BODY_TEMPLATE_MAGIC 0xB0DFAC00
+#define HTTP_BODY_SET_MAGIC      0xB0DFAC55
+#define HTTP_BODY_FACTORY_MAGIC  0xB0DFACFF
+
+////////////////////////////////////////////////////////////////////////
+//
+//      class HttpBodyTemplate
+//
+//      An HttpBodyTemplate object represents a template with HTML
+//      text, and unexpanded log fields.  The object also has methods
+//      to dump out the contents of the template, and to instantiate
+//      the template into a buffer given a context.
+//
+////////////////////////////////////////////////////////////////////////
+
+class HttpBodyTemplate
+{
+public:
+  HttpBodyTemplate();
+  ~HttpBodyTemplate();
+
+  void reset();
+  int load_from_file(char *dir, char *file);
+  bool is_sane()
+  {
+    return (magic == HTTP_BODY_TEMPLATE_MAGIC);
+  }
+  char *build_instantiated_buffer(HttpTransact::State * context, int64_t *length_return);
+
+  unsigned int magic;
+  int64_t byte_count;
+  char *template_buffer;
+  char *template_pathname;
+};
+
+
+////////////////////////////////////////////////////////////////////////
+//
+//      class HttpBodySet
+//
+//      An HttpBodySet object represents a set of body factory
+//      templates.  It includes operators to get the hash table of
+//      templates, and the associated metadata for the set.
+//
+//      The raw data members come from HttpBodySetRawData, which
+//      is defined in proxy/hdrs/HttpCompat.h
+//
+////////////////////////////////////////////////////////////////////////
+
+class HttpBodySet:public HttpBodySetRawData
+{
+public:
+  HttpBodySet();
+  ~HttpBodySet();
+
+  int init(char *set_name, char *dir);
+  bool is_sane()
+  {
+    return (magic == HTTP_BODY_SET_MAGIC);
+  }
+
+  HttpBodyTemplate *get_template_by_name(const char *name);
+  void set_template_by_name(const char *name, HttpBodyTemplate * t);
+};
+
+
+////////////////////////////////////////////////////////////////////////
+//
+//      class HttpBodyFactory
+//
+//      An HttpBodyFactory object is the main object which keeps track
+//      of all the response body templates, and which provides the
+//      methods to create response bodies.
+//
+//      Once an HttpBodyFactory object is initialized, and the template
+//      data has been loaded, the HttpBodyFactory object allows the
+//      caller to make error message bodies w/fabricate_with_old_api
+//
+////////////////////////////////////////////////////////////////////////
+
+class HttpBodyFactory
+{
+public:
+  HttpBodyFactory();
+  ~HttpBodyFactory();
+
+  ///////////////////////
+  // primary user APIs //
+  ///////////////////////
+  char *fabricate_with_old_api(const char *type, HttpTransact::State * context,
+                               int64_t max_buffer_length, int64_t *resulting_buffer_length,
+                               char* content_language_out_buf,
+                               size_t content_language_buf_size,
+                               char* content_type_out_buf,
+                               size_t content_type_buf_size,
+                               const char *format, va_list ap);
+
+  char *fabricate_with_old_api_build_va(const char *type, HttpTransact::State * context,
+                                        int64_t max_buffer_length, int64_t *resulting_buffer_length,
+                                        char* content_language_out_buf, size_t content_language_buf_size,
+                                        char* content_type_out_buf, size_t content_type_buf_size,
+                                        const char *format, ...)
+  {
+    char * msg;
+    va_list ap;
+
+    va_start(ap, format);
+    msg = fabricate_with_old_api(type, context, max_buffer_length, resulting_buffer_length,
+                                   content_language_out_buf, content_language_buf_size,
+                                   content_type_out_buf, content_type_buf_size, format, ap);
+    va_end(ap);
+    return msg;
+  }
+
+  void dump_template_tables(FILE * fp = stderr);
+  void reconfigure();
+
+private:
+
+  char *fabricate(StrList * acpt_language_list,
+                  StrList * acpt_charset_list,
+                  const char *type, HttpTransact::State * context,
+                  int64_t *resulting_buffer_length,
+                  const char **content_language_return,
+                  const char **content_charset_return, const char **set_return = NULL);
+
+  const char *determine_set_by_language(StrList * acpt_language_list, StrList * acpt_charset_list);
+  HttpBodyTemplate *find_template(const char *set, const char *type, HttpBodySet ** body_set_return);
+  bool is_response_suppressed(HttpTransact::State * context);
+  bool is_sane()
+  {
+    return (magic == HTTP_BODY_FACTORY_MAGIC);
+  }
+  void sanity_check()
+  {
+    ink_assert(is_sane());
+  }
+
+private:
+  ////////////////////////////
+  // initialization methods //
+  ////////////////////////////
+  void nuke_template_tables();
+  RawHashTable *load_sets_from_directory(char *set_dir);
+  HttpBodySet *load_body_set_from_directory(char *set_name, char *tmpl_dir);
+
+  /////////////////////////////////////////////////
+  // internal data structure concurrency control //
+  /////////////////////////////////////////////////
+  void lock()
+  {
+    ink_mutex_acquire(&mutex);
+  }
+  void unlock()
+  {
+    ink_mutex_release(&mutex);
+  }
+
+  /////////////////////////////////////
+  // manager configuration variables //
+  /////////////////////////////////////
+  int enable_customizations;    // 0:no custom,1:custom,2:language-targeted
+  bool enable_logging;          // the user wants body factory logging
+  int response_suppression_mode;        // when to suppress responses
+
+  ////////////////////
+  // internal state //
+  ////////////////////
+  unsigned int magic;           // magic for sanity checks/debugging
+  ink_mutex mutex;              // prevents reconfig/read races
+  bool callbacks_established;   // all config variables present
+  RawHashTable *table_of_sets;  // sets of template hash tables
+};
+
+#endif
diff --git a/proxy/http/HttpCacheSM.cc b/proxy/http/HttpCacheSM.cc
new file mode 100644
index 00000000..a684f006
--- /dev/null
+++ b/proxy/http/HttpCacheSM.cc
@@ -0,0 +1,324 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpCacheSM.cc
+
+   Description:
+
+
+ ****************************************************************************/
+
+#include "HttpCacheSM.h"
+#include "HttpSM.h"
+#include "HttpDebugNames.h"
+
+#define STATE_ENTER(state_name, event) { \
+        REMEMBER(event, -1); \
+        Debug("http_cache", "[%" PRId64 "] [%s, %s]", master_sm->sm_id, \
+        #state_name, HttpDebugNames::get_event_name(event)); }
+
+#define __REMEMBER(x)  #x
+#define _REMEMBER(x)   __REMEMBER(x)
+
+#define REMEMBER(e,r) master_sm->add_history_entry(__FILE__ ":" _REMEMBER (__LINE__), e, r);
+
+
+HttpCacheAction::HttpCacheAction()
+  : sm(NULL)
+{
+}
+
+void
+HttpCacheAction::cancel(Continuation * c)
+{
+  ink_assert(c == NULL || c == sm->master_sm);
+  ink_assert(this->cancelled == 0);
+
+  this->cancelled = 1;
+  if (sm->pending_action)
+    sm->pending_action->cancel();
+}
+
+HttpCacheSM::HttpCacheSM():
+  Continuation(NULL),
+  cache_read_vc(NULL), cache_write_vc(NULL),
+  read_locked(false), write_locked(false),
+  readwhilewrite_inprogress(false),
+  master_sm(NULL), pending_action(NULL),
+  captive_action(),
+  open_read_cb(false), open_write_cb(false), open_read_tries(0),
+  read_request_hdr(NULL), read_config(NULL),
+  read_pin_in_cache(0), retry_write(true), open_write_tries(0),
+  lookup_url(NULL), lookup_max_recursive(0), current_lookup_level(0)
+{
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+//  HttpCacheSM::state_cache_open_read()
+//
+//  State the cache calls back the state machine into on a open_read
+//  call. The set of allowed events (from the cache) are:
+// - CACHE_EVENT_OPEN_READ
+//   - document matching request is in the cache
+// - CACHE_EVENT_OPEN_READ_FAILED
+//   if (data != ECACHEDOCBUSY)
+//   - document matching request is not in the cache
+//   if (data == ECACHEDOCBUSY)
+//   - document with same URL as request is in the cache
+//     but is being currently updated by another state
+//     machine. Keep in mind that the document may NOT
+//     match any of the request headers - it just matches
+//     the URL. In other words, the document that is being
+//     written to by another state machine may be an
+//     alternate of the document the request wants.
+// - EVENT_INTERVAL
+//   - a previous open_read returned "failed_in_progress". we
+//     decided to retry the open read. we scheduled the event
+//     processor to call us back after n msecs so that we can
+//     reissue the open_read. this is the call from the event
+//     processor.
+//
+//////////////////////////////////////////////////////////////////////////
+int
+HttpCacheSM::state_cache_open_read(int event, void *data)
+{
+  STATE_ENTER(&HttpCacheSM::state_cache_open_read, event);
+  ink_assert(captive_action.cancelled == 0);
+  pending_action = NULL;
+
+  switch (event) {
+  case CACHE_EVENT_OPEN_READ:
+    HTTP_INCREMENT_DYN_STAT(http_current_cache_connections_stat);
+    ink_assert(cache_read_vc == NULL);
+    open_read_cb = true;
+    cache_read_vc = (CacheVConnection *) data;
+    master_sm->handleEvent(event, data);
+    break;
+
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    if (data == (void *) -ECACHE_DOC_BUSY) {
+      // Somebody else is writing the object
+      if (open_read_tries <= master_sm->t_state.txn_conf->max_cache_open_read_retries) {
+        // Retry to read; maybe the update finishes in time
+        open_read_cb = false;
+        do_schedule_in();
+      } else {
+        // Give up; the update didn't finish in time
+        // HttpSM will inform HttpTransact to 'proxy-only'
+        open_read_cb = true;
+        master_sm->handleEvent(event, data);
+      }
+    } else {
+      // Simple miss in the cache.
+      open_read_cb = true;
+      master_sm->handleEvent(event, data);
+    }
+    break;
+
+  case EVENT_INTERVAL:
+    // Retry the cache open read if the number retries is less
+    // than or equal to the max number of open read retries,
+    // else treat as a cache miss.
+    ink_assert(open_read_tries <= master_sm->t_state.txn_conf->max_cache_open_read_retries || write_locked);
+    Debug("http_cache", "[%" PRId64 "] [state_cache_open_read] cache open read failure %d. "
+          "retrying cache open read...", master_sm->sm_id, open_read_tries);
+
+    do_cache_open_read();
+    break;
+
+  default:
+    ink_assert(0);
+  }
+
+  return VC_EVENT_CONT;
+}
+
+int
+HttpCacheSM::state_cache_open_write(int event, void *data)
+{
+  STATE_ENTER(&HttpCacheSM::state_cache_open_write, event);
+  ink_assert(captive_action.cancelled == 0);
+  pending_action = NULL;
+
+  switch (event) {
+  case CACHE_EVENT_OPEN_WRITE:
+    HTTP_INCREMENT_DYN_STAT(http_current_cache_connections_stat);
+    ink_assert(cache_write_vc == NULL);
+    cache_write_vc = (CacheVConnection *) data;
+    open_write_cb = true;
+    master_sm->handleEvent(event, data);
+    break;
+
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+    // The cache is hosed or full or something.
+    // Forward the failure to the main sm
+    open_write_cb = true;
+    master_sm->handleEvent(event, data);
+    break;
+
+  default:
+    ink_release_assert(0);
+  }
+
+  return VC_EVENT_CONT;
+}
+
+void
+HttpCacheSM::do_schedule_in()
+{
+  ink_assert(pending_action == NULL);
+  Action *action_handle =
+    mutex->thread_holding->schedule_in(this, HRTIME_MSECONDS(master_sm->t_state.txn_conf->cache_open_read_retry_time));
+
+  if (action_handle != ACTION_RESULT_DONE) {
+    pending_action = action_handle;
+  }
+
+  return;
+}
+
+Action *
+HttpCacheSM::do_cache_open_read()
+{
+  open_read_tries++;
+  ink_assert(pending_action == NULL);
+  if (write_locked) {
+    open_read_cb = false;
+  } else {
+    ink_assert(open_read_cb == false);
+  }
+  //Initialising read-while-write-inprogress flag
+  this->readwhilewrite_inprogress = false;
+  Action *action_handle = cacheProcessor.open_read(this, this->lookup_url, master_sm->t_state.cache_control.cluster_cache_local, this->read_request_hdr, this->read_config,
+                                                   this->read_pin_in_cache);
+
+  if (action_handle != ACTION_RESULT_DONE) {
+    pending_action = action_handle;
+  }
+  // Check to see if we've already called the user back
+  //  If we have then it's ACTION_RESULT_DONE, other wise
+  //  return our captive action and ensure that we are actually
+  //  doing something useful
+  if (open_read_cb == true) {
+    return ACTION_RESULT_DONE;
+  } else {
+    ink_assert(pending_action != NULL || write_locked == true);
+    return &captive_action;
+  }
+}
+
+Action *
+HttpCacheSM::open_read(URL * url, HTTPHdr * hdr, CacheLookupHttpConfig * params, time_t pin_in_cache)
+{
+  Action *act_return;
+
+  lookup_url = url;
+  read_request_hdr = hdr;
+  read_config = params;
+  read_pin_in_cache = pin_in_cache;
+  ink_assert(pending_action == NULL);
+  SET_HANDLER(&HttpCacheSM::state_cache_open_read);
+
+  lookup_max_recursive++;
+  current_lookup_level++;
+  open_read_cb = false;
+  act_return = do_cache_open_read();
+  // the following logic is based on the assumption that the secnod
+  // lookup won't happen if the HttpSM hasn't been called back for the
+  // first lookup
+  if (current_lookup_level == lookup_max_recursive) {
+    current_lookup_level--;
+    ink_assert(current_lookup_level >= 0);
+    if (current_lookup_level == 0) {
+      lookup_max_recursive = 0;
+    }
+    return act_return;
+  } else {
+    ink_assert(current_lookup_level < lookup_max_recursive);
+    current_lookup_level--;
+
+    if (current_lookup_level == 0)
+      lookup_max_recursive = 0;
+
+    return ACTION_RESULT_DONE;
+  }
+}
+
+Action *
+HttpCacheSM::open_write(URL * url, HTTPHdr * request, CacheHTTPInfo * old_info, time_t pin_in_cache,
+                        bool retry, bool allow_multiple)
+{
+  SET_HANDLER(&HttpCacheSM::state_cache_open_write);
+  ink_assert(pending_action == NULL);
+  ink_assert(cache_write_vc == NULL);
+  // INKqa12119
+  open_write_cb = false;
+  open_write_tries++;
+  this->retry_write = retry;
+
+  // We should be writing the same document we did
+  //  a lookup on
+  // this is no longer true for multiple cache lookup
+  //ink_assert(url == lookup_url || lookup_url == NULL);
+  ink_assert(request == read_request_hdr || read_request_hdr == NULL);
+  this->lookup_url = url;
+  this->read_request_hdr = request;
+
+  // Make sure we are not stuck in a loop where the write
+  //  fails but the retry read succeeds causing to issue
+  //  a new write (could happen on a very busy document
+  //  that must be revalidated every time)
+  // Changed by YTS Team, yamsat Plugin
+  if (open_write_tries > master_sm->redirection_tries &&
+      open_write_tries > master_sm->t_state.http_config_param->max_cache_open_write_retries) {
+    master_sm->handleEvent(CACHE_EVENT_OPEN_WRITE_FAILED, (void *) -ECACHE_DOC_BUSY);
+    return ACTION_RESULT_DONE;
+  }
+
+  Action *action_handle = cacheProcessor.open_write(this,
+                                                    0,
+                                                    url,
+                                                    master_sm->t_state.cache_control.cluster_cache_local,
+                                                    request,
+                                                    // INKqa11166
+                                                    allow_multiple ? (CacheHTTPInfo *) CACHE_ALLOW_MULTIPLE_WRITES :
+                                                    old_info,
+                                                    pin_in_cache);
+
+  if (action_handle != ACTION_RESULT_DONE) {
+    pending_action = action_handle;
+  }
+  // Check to see if we've already called the user back
+  //  If we have then it's ACTION_RESULT_DONE, other wise
+  //  return our captive action and ensure that we are actually
+  //  doing something useful
+  if (open_write_cb == true) {
+    return ACTION_RESULT_DONE;
+  } else {
+    ink_assert(pending_action != NULL);
+    return &captive_action;
+  }
+}
diff --git a/proxy/http/HttpCacheSM.h b/proxy/http/HttpCacheSM.h
new file mode 100644
index 00000000..a6b40a9f
--- /dev/null
+++ b/proxy/http/HttpCacheSM.h
@@ -0,0 +1,176 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpCacheSM.h
+
+   Description:
+
+
+ ****************************************************************************/
+
+#ifndef _HTTP_CACHE_SM_H_
+#define _HTTP_CACHE_SM_H_
+
+#include "P_Cache.h"
+#include "StatSystem.h"
+#include "ProxyConfig.h"
+#include "URL.h"
+#include "HTTP.h"
+#include "HttpConfig.h"
+
+class HttpSM;
+class HttpCacheSM;
+class CacheLookupHttpConfig;
+
+struct HttpCacheAction:public Action
+{
+  HttpCacheAction();
+  virtual void cancel(Continuation * c = NULL);
+  void init(HttpCacheSM * sm_arg)
+  {
+    sm = sm_arg;
+  };
+  HttpCacheSM *sm;
+};
+
+class HttpCacheSM:public Continuation
+{
+public:
+  HttpCacheSM();
+
+  void init(HttpSM * sm_arg, ProxyMutex * amutex)
+  {
+    master_sm = sm_arg;
+    mutex = amutex;
+    captive_action.init(this);
+  }
+
+  Action *open_read(URL * url, HTTPHdr * hdr, CacheLookupHttpConfig * params, time_t pin_in_cache);
+
+  Action *open_write(URL * url,
+                     HTTPHdr * request, CacheHTTPInfo * old_info, time_t pin_in_cache, bool retry, bool allow_multiple);
+
+  CacheVConnection *cache_read_vc;
+  CacheVConnection *cache_write_vc;
+
+  bool read_locked;
+  bool write_locked;
+  // Flag to check whether read-while-write is in progress or not
+  bool readwhilewrite_inprogress;
+
+  HttpSM *master_sm;
+  Action *pending_action;
+
+  //Function to set readwhilewrite_inprogress flag
+  inline void set_readwhilewrite_inprogress(bool value)
+  {
+    readwhilewrite_inprogress = value;
+  }
+
+  //Function to get the readwhilewrite_inprogress flag
+  inline bool is_readwhilewrite_inprogress()
+  {
+    return readwhilewrite_inprogress;
+  }
+
+  inline void abort_read()
+  {
+    if (cache_read_vc) {
+      HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+      cache_read_vc->do_io(VIO::ABORT);
+      cache_read_vc = NULL;
+    }
+  }
+  inline void abort_write()
+  {
+    if (cache_write_vc) {
+      HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+      cache_write_vc->do_io(VIO::ABORT);
+      cache_write_vc = NULL;
+    }
+  }
+  inline void close_write()
+  {
+    if (cache_write_vc) {
+      HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+      cache_write_vc->do_io(VIO::CLOSE);
+      cache_write_vc = NULL;
+    }
+  }
+  inline void close_read()
+  {
+    if (cache_read_vc) {
+      HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+      cache_read_vc->do_io(VIO::CLOSE);
+      cache_read_vc = NULL;
+    }
+  }
+  inline void end_both()
+  {
+    // We close the read so that cache
+    //   records its stats
+    close_read();
+    abort_write();
+  }
+  inline URL *get_lookup_url()
+  {
+    return lookup_url;
+  }
+  inline void set_lookup_url(URL * url)
+  {
+    lookup_url = url;
+  }
+
+private:
+
+  void do_schedule_in();
+  Action *do_cache_open_read();
+
+  int state_cache_open_read(int event, void *data);
+  int state_cache_open_write(int event, void *data);
+
+  HttpCacheAction captive_action;
+  bool open_read_cb;
+  bool open_write_cb;
+
+  // Open read parameters
+  int open_read_tries;
+  HTTPHdr *read_request_hdr;
+  CacheLookupHttpConfig *read_config;
+  time_t read_pin_in_cache;
+
+  // Open write parameters
+  bool retry_write;
+  int open_write_tries;
+
+  // Common parameters
+  URL *lookup_url;
+
+  // to keep track of multiple cache lookups
+  int lookup_max_recursive;
+  int current_lookup_level;
+};
+
+#endif
diff --git a/proxy/http/HttpClientSession.cc b/proxy/http/HttpClientSession.cc
new file mode 100644
index 00000000..9952cf16
--- /dev/null
+++ b/proxy/http/HttpClientSession.cc
@@ -0,0 +1,636 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpClientSession.cc
+
+   Description:
+
+
+ ****************************************************************************/
+
+#include "ink_config.h"
+#include "Allocator.h"
+#include "HttpClientSession.h"
+#include "HttpSM.h"
+#include "HttpDebugNames.h"
+#include "HttpServerSession.h"
+#include "Plugin.h"
+
+#define DebugSsn(tag, ...) DebugSpecific(debug_on, tag, __VA_ARGS__)
+#define STATE_ENTER(state_name, event, vio) { \
+    /*ink_assert (magic == HTTP_SM_MAGIC_ALIVE);  REMEMBER (event, NULL, reentrancy_count); */ \
+        DebugSsn("http_cs", "[%" PRId64 "] [%s, %s]", con_id, \
+        #state_name, HttpDebugNames::get_event_name(event)); }
+
+enum
+{
+  HTTP_CS_MAGIC_ALIVE = 0x0123F00D,
+  HTTP_CS_MAGIC_DEAD = 0xDEADF00D
+};
+
+// We have debugging list that we can use to find stuck
+//  client sessions
+DLL<HttpClientSession> debug_cs_list;
+ink_mutex debug_cs_list_mutex;
+
+static int64_t next_cs_id = (int64_t) 0;
+ClassAllocator<HttpClientSession> httpClientSessionAllocator("httpClientSessionAllocator");
+
+HttpClientSession::HttpClientSession()
+  : VConnection(NULL), con_id(0), client_vc(NULL), magic(HTTP_CS_MAGIC_DEAD),
+    tcp_init_cwnd_set(false),
+    transact_count(0), half_close(false), conn_decrease(false), bound_ss(NULL),
+    read_buffer(NULL), current_reader(NULL), read_state(HCS_INIT),
+    ka_vio(NULL), slave_ka_vio(NULL),
+    cur_hook_id(TS_HTTP_LAST_HOOK), cur_hook(NULL),
+    cur_hooks(0), backdoor_connect(false),
+    hooks_set(0),
+    outbound_port(0), f_outbound_transparent(false),
+    host_res_style(HOST_RES_IPV4), acl_record(NULL),
+    m_active(false), debug_on(false)
+{
+  memset(user_args, 0, sizeof(user_args));
+}
+
+void
+HttpClientSession::cleanup()
+{
+  DebugSsn("http_cs", "[%" PRId64 "] session destroy", con_id);
+
+  ink_release_assert(client_vc == NULL);
+  ink_release_assert(bound_ss == NULL);
+  ink_assert(read_buffer);
+  magic = HTTP_CS_MAGIC_DEAD;
+  if (read_buffer) {
+    free_MIOBuffer(read_buffer);
+    read_buffer = NULL;
+  }
+#ifdef USE_HTTP_DEBUG_LISTS
+  ink_mutex_acquire(&debug_cs_list_mutex);
+  debug_cs_list.remove(this, this->debug_link);
+  ink_mutex_release(&debug_cs_list_mutex);
+#endif
+
+  ink_assert(client_vc == 0);
+  api_hooks.clear();
+  mutex.clear();
+  debug_on = false;
+
+  if (conn_decrease) {
+    HTTP_DECREMENT_DYN_STAT(http_current_client_connections_stat);
+    conn_decrease = false;
+  }
+}
+
+void
+HttpClientSession::destroy()
+{
+  this->cleanup();
+  THREAD_FREE(this, httpClientSessionAllocator, this_thread());
+}
+
+void
+HttpClientSession::ssn_hook_append(TSHttpHookID id, INKContInternal * cont)
+{
+  api_hooks.append(id, cont);
+  hooks_set = 1;
+
+  if (current_reader) {
+    current_reader->hooks_set = 1;
+  }
+}
+
+void
+HttpClientSession::ssn_hook_prepend(TSHttpHookID id, INKContInternal * cont)
+{
+  api_hooks.prepend(id, cont);
+  hooks_set = 1;
+
+  if (current_reader) {
+    current_reader->hooks_set = 1;
+  }
+}
+
+
+void
+HttpClientSession::new_transaction()
+{
+  ink_assert(current_reader == NULL);
+  PluginIdentity* pi = dynamic_cast<PluginIdentity*>(client_vc);
+
+  read_state = HCS_ACTIVE_READER;
+  current_reader = HttpSM::allocate();
+  current_reader->init();
+  transact_count++;
+  DebugSsn("http_cs", "[%" PRId64 "] Starting transaction %d using sm [%" PRId64 "]", con_id, transact_count, current_reader->sm_id);
+
+  current_reader->attach_client_session(this, sm_reader);
+  if (pi) {
+    // it's a plugin VC of some sort with identify information.
+    // copy it to the SM.
+    current_reader->plugin_tag = pi->getPluginTag();
+    current_reader->plugin_id = pi->getPluginId();
+  }
+}
+
+inline void
+HttpClientSession::do_api_callout(TSHttpHookID id)
+{
+
+  cur_hook_id = id;
+  ink_assert(cur_hook_id == TS_HTTP_SSN_START_HOOK || cur_hook_id == TS_HTTP_SSN_CLOSE_HOOK);
+
+  if (hooks_set && backdoor_connect == 0) {
+    SET_HANDLER(&HttpClientSession::state_api_callout);
+    cur_hook = NULL;
+    cur_hooks = 0;
+    state_api_callout(0, NULL);
+  } else {
+    handle_api_return(HTTP_API_CONTINUE);
+  }
+}
+
+void
+HttpClientSession::new_connection(NetVConnection * new_vc, bool backdoor, MIOBuffer * iobuf, IOBufferReader * reader)
+{
+
+  ink_assert(new_vc != NULL);
+  ink_assert(client_vc == NULL);
+  client_vc = new_vc;
+  magic = HTTP_CS_MAGIC_ALIVE;
+  mutex = new_vc->mutex;
+  MUTEX_TRY_LOCK(lock, mutex, this_ethread());
+  ink_assert(!!lock);
+  this->backdoor_connect = backdoor;
+
+  // Unique client session identifier.
+  con_id = ink_atomic_increment((int64_t *) (&next_cs_id), 1);
+
+  HTTP_INCREMENT_DYN_STAT(http_current_client_connections_stat);
+  conn_decrease = true;
+  HTTP_INCREMENT_DYN_STAT(http_total_client_connections_stat);
+  if (static_cast<HttpProxyPort::TransportType>(new_vc->attributes) == HttpProxyPort::TRANSPORT_SSL) {
+    HTTP_INCREMENT_DYN_STAT(https_total_client_connections_stat);
+  }
+
+  /* inbound requests stat should be incremented here, not after the
+   * header has been read */
+  HTTP_INCREMENT_DYN_STAT(http_total_incoming_connections_stat);
+
+  // check what type of socket address we just accepted
+  // by looking at the address family value of sockaddr_storage
+  // and logging to stat system
+  switch(new_vc->get_remote_addr()->sa_family) {
+    case AF_INET:
+      HTTP_INCREMENT_DYN_STAT(http_total_client_connections_ipv4_stat);
+    break;
+    case AF_INET6:
+      HTTP_INCREMENT_DYN_STAT(http_total_client_connections_ipv6_stat);
+    break;
+    default:
+      // don't do anything if the address family is not ipv4 or ipv6
+      // (there are many other address families in <sys/socket.h>
+      // but we don't have a need to report on all the others today)
+    break;
+  }
+
+  // Record api hook set state
+  hooks_set = http_global_hooks->has_hooks();
+
+#ifdef USE_HTTP_DEBUG_LISTS
+  ink_mutex_acquire(&debug_cs_list_mutex);
+  debug_cs_list.push(this, this->debug_link);
+  ink_mutex_release(&debug_cs_list_mutex);
+#endif
+
+  DebugSsn("http_cs", "[%" PRId64 "] session born, netvc %p", con_id, new_vc);
+
+  read_buffer = iobuf ? iobuf : new_MIOBuffer(HTTP_HEADER_BUFFER_SIZE_INDEX);
+  sm_reader = reader ? reader : read_buffer->alloc_reader();
+
+  // INKqa11186: Use a local pointer to the mutex as
+  // when we return from do_api_callout, the ClientSession may
+  // have already been deallocated.
+  EThread *ethis = this_ethread();
+  Ptr<ProxyMutex> lmutex = this->mutex;
+  MUTEX_TAKE_LOCK(lmutex, ethis);
+  do_api_callout(TS_HTTP_SSN_START_HOOK);
+  MUTEX_UNTAKE_LOCK(lmutex, ethis);
+  lmutex.clear();
+}
+
+VIO *
+HttpClientSession::do_io_read(Continuation * c, int64_t nbytes, MIOBuffer * buf)
+{
+  return client_vc->do_io_read(c, nbytes, buf);
+}
+
+VIO *
+HttpClientSession::do_io_write(Continuation * c, int64_t nbytes, IOBufferReader * buf, bool owner)
+{
+  /* conditionally set the tcp initial congestion window
+     before our first write. */
+  DebugSsn("http_cs", "tcp_init_cwnd_set %d\n", (int)tcp_init_cwnd_set);
+  if(!tcp_init_cwnd_set) {
+    tcp_init_cwnd_set = true;
+    set_tcp_init_cwnd();
+  }
+  return client_vc->do_io_write(c, nbytes, buf, owner);
+}
+
+void
+HttpClientSession::set_tcp_init_cwnd()
+{
+  int desired_tcp_init_cwnd = current_reader->t_state.txn_conf->server_tcp_init_cwnd;
+  DebugSsn("http_cs", "desired TCP congestion window is %d\n", desired_tcp_init_cwnd);
+  if(desired_tcp_init_cwnd == 0) return;
+  if(get_netvc()->set_tcp_init_cwnd(desired_tcp_init_cwnd) != 0)
+    DebugSsn("http_cs", "set_tcp_init_cwnd(%d) failed", desired_tcp_init_cwnd);
+}
+
+void
+HttpClientSession::do_io_shutdown(ShutdownHowTo_t howto)
+{
+  client_vc->do_io_shutdown(howto);
+}
+
+void
+HttpClientSession::do_io_close(int alerrno)
+{
+
+  if (read_state == HCS_ACTIVE_READER) {
+    HTTP_DECREMENT_DYN_STAT(http_current_client_transactions_stat);
+    if (m_active) {
+      m_active = false;
+      HTTP_DECREMENT_DYN_STAT(http_current_active_client_connections_stat);
+    }
+  }
+
+  // Prevent double closing
+  ink_release_assert(read_state != HCS_CLOSED);
+
+  // If we have an attached server session, release
+  //   it back to our shared pool
+  if (bound_ss) {
+    bound_ss->release();
+    bound_ss = NULL;
+    slave_ka_vio = NULL;
+  }
+
+  if (half_close) {
+    read_state = HCS_HALF_CLOSED;
+    SET_HANDLER(&HttpClientSession::state_wait_for_close);
+    DebugSsn("http_cs", "[%" PRId64 "] session half close", con_id);
+
+    // We want the client to know that that we're finished
+    //  writing.  The write shutdown accomplishes this.  Unfortuantely,
+    //  the IO Core semantics don't stop us from getting events
+    //  on the write side of the connection like timeouts so we
+    //  need to zero out the write of the continuation with
+    //  the do_io_write() call (INKqa05309)
+    client_vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+
+    ka_vio = client_vc->do_io_read(this, INT64_MAX, read_buffer);
+    ink_assert(slave_ka_vio != ka_vio);
+
+    // [bug 2610799] Drain any data read.
+    // If the buffer is full and the client writes again, we will not receive a
+    // READ_READY event.
+    sm_reader->consume(sm_reader->read_avail());
+
+    // Set the active timeout to the same as the inactive time so
+    //   that this connection does not hang around forever if
+    //   the ua hasn't closed
+    client_vc->set_active_timeout(HRTIME_SECONDS(current_reader->t_state.txn_conf->keep_alive_no_activity_timeout_out));
+  } else {
+    read_state = HCS_CLOSED;
+    client_vc->do_io_close(alerrno);
+    DebugSsn("http_cs", "[%" PRId64 "] session closed", con_id);
+    client_vc = NULL;
+    HTTP_SUM_DYN_STAT(http_transactions_per_client_con, transact_count);
+    HTTP_DECREMENT_DYN_STAT(http_current_client_connections_stat);
+    conn_decrease = false;
+    do_api_callout(TS_HTTP_SSN_CLOSE_HOOK);
+  }
+}
+
+int
+HttpClientSession::state_wait_for_close(int event, void *data)
+{
+
+  STATE_ENTER(&HttpClientSession::state_wait_for_close, event, data);
+
+  ink_assert(data == ka_vio);
+  ink_assert(read_state == HCS_HALF_CLOSED);
+
+  switch (event) {
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    half_close = false;
+    this->do_io_close();
+    break;
+  case VC_EVENT_READ_READY:
+    // Drain any data read
+    sm_reader->consume(sm_reader->read_avail());
+    break;
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpClientSession::state_slave_keep_alive(int event, void *data)
+{
+
+  STATE_ENTER(&HttpClientSession::state_slave_keep_alive, event, data);
+
+  ink_assert(data == slave_ka_vio);
+  ink_assert(bound_ss != NULL);
+
+  switch (event) {
+  default:
+  case VC_EVENT_READ_COMPLETE:
+    // These events are bogus
+    ink_assert(0);
+    /* Fall Through */
+  case VC_EVENT_ERROR:
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_EOS:
+    // The server session closed or something is amiss
+    bound_ss->do_io_close();
+    bound_ss = NULL;
+    slave_ka_vio = NULL;
+    break;
+
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    // Timeout - place the session on the shared pool
+    bound_ss->release();
+    bound_ss = NULL;
+    slave_ka_vio = NULL;
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpClientSession::state_keep_alive(int event, void *data)
+{
+
+  // Route the event.  It is either for client vc or
+  //  the origin server slave vc
+  if (data && data == slave_ka_vio) {
+    return state_slave_keep_alive(event, data);
+  } else {
+    ink_assert(data && data == ka_vio);
+    ink_assert(read_state == HCS_KEEP_ALIVE);
+  }
+
+  STATE_ENTER(&HttpClientSession::state_keep_alive, event, data);
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+    // New transaction, need to spawn of new sm to process
+    // request
+    new_transaction();
+    break;
+
+  case VC_EVENT_EOS:
+    // If there is data in the buffer, start a new
+    //  transaction, otherwise the client gave up
+    if (sm_reader->read_avail() > 0) {
+      new_transaction();
+    } else {
+      this->do_io_close();
+    }
+    break;
+
+  case VC_EVENT_READ_COMPLETE:
+  default:
+    // These events are bogus
+    ink_assert(0);
+    // Fall through
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    // Keep-alive timed out
+    this->do_io_close();
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpClientSession::state_api_callout(int event, void * /* data ATS_UNUSED */)
+{
+  switch (event) {
+  case EVENT_NONE:
+  case EVENT_INTERVAL:
+  case HTTP_API_CONTINUE:
+    if ((cur_hook_id >= 0) && (cur_hook_id < TS_HTTP_LAST_HOOK)) {
+      if (!cur_hook) {
+        if (cur_hooks == 0) {
+          cur_hook = http_global_hooks->get(cur_hook_id);
+          cur_hooks++;
+        }
+      }
+      if (!cur_hook) {
+        if (cur_hooks == 1) {
+          cur_hook = api_hooks.get(cur_hook_id);
+          cur_hooks++;
+        }
+      }
+
+      if (cur_hook) {
+        bool plugin_lock;
+        Ptr<ProxyMutex> plugin_mutex;
+        if (cur_hook->m_cont->mutex) {
+          plugin_mutex = cur_hook->m_cont->mutex;
+          plugin_lock = MUTEX_TAKE_TRY_LOCK(cur_hook->m_cont->mutex, mutex->thread_holding);
+          if (!plugin_lock) {
+            SET_HANDLER(&HttpClientSession::state_api_callout);
+            mutex->thread_holding->schedule_in(this, HRTIME_MSECONDS(10));
+            return 0;
+          }
+        } else {
+          plugin_lock = false;
+        }
+
+        APIHook *hook = cur_hook;
+        cur_hook = cur_hook->next();
+
+        hook->invoke(TS_EVENT_HTTP_READ_REQUEST_HDR + cur_hook_id, this);
+
+        if (plugin_lock) {
+          // BZ 51246
+          Mutex_unlock(plugin_mutex, this_ethread());
+        }
+
+        return 0;
+      }
+    }
+
+    handle_api_return(event);
+    break;
+
+  // coverity[unterminated_default]
+  default:
+    ink_assert(false);
+  case HTTP_API_ERROR:
+    handle_api_return(event);
+    break;
+  }
+
+  return 0;
+}
+
+void
+HttpClientSession::handle_api_return(int event)
+{
+  SET_HANDLER(&HttpClientSession::state_api_callout);
+
+  cur_hook = NULL;
+  cur_hooks = 0;
+
+  switch (cur_hook_id) {
+  case TS_HTTP_SSN_START_HOOK:
+    if (event != HTTP_API_ERROR) {
+      new_transaction();
+    } else {
+      do_io_close();
+    }
+    break;
+  case TS_HTTP_SSN_CLOSE_HOOK:
+    destroy();
+    break;
+  default:
+    ink_release_assert(0);
+    break;
+  }
+}
+
+void
+HttpClientSession::reenable(VIO * vio)
+{
+  client_vc->reenable(vio);
+}
+
+void
+HttpClientSession::attach_server_session(HttpServerSession * ssession, bool transaction_done)
+{
+  if (ssession) {
+    ink_assert(bound_ss == NULL);
+    ssession->state = HSS_KA_CLIENT_SLAVE;
+    bound_ss = ssession;
+    DebugSsn("http_cs", "[%" PRId64 "] attaching server session [%" PRId64 "] as slave", con_id, ssession->con_id);
+    ink_assert(ssession->get_reader()->read_avail() == 0);
+    ink_assert(ssession->get_netvc() != client_vc);
+
+    // handling potential keep-alive here
+    if (m_active) {
+      m_active = false;
+      HTTP_DECREMENT_DYN_STAT(http_current_active_client_connections_stat);
+    }
+    // Since this our slave, issue an IO to detect a close and
+    //  have it call the client session back.  This IO also prevent
+    //  the server net conneciton from calling back a dead sm
+    SET_HANDLER(&HttpClientSession::state_keep_alive);
+    slave_ka_vio = ssession->do_io_read(this, INT64_MAX, ssession->read_buffer);
+    ink_assert(slave_ka_vio != ka_vio);
+
+    // Transfer control of the write side as well
+    ssession->do_io_write(this, 0, NULL);
+
+    if (transaction_done) {
+      ssession->get_netvc()->
+        set_inactivity_timeout(HRTIME_SECONDS(current_reader->t_state.txn_conf->keep_alive_no_activity_timeout_out));
+      ssession->get_netvc()->cancel_active_timeout();
+    } else {
+      // we are serving from the cache - this could take a while.
+      ssession->get_netvc()->cancel_inactivity_timeout();
+      ssession->get_netvc()->cancel_active_timeout();
+    }
+  } else {
+    ink_assert(bound_ss != NULL);
+    bound_ss = NULL;
+    slave_ka_vio = NULL;
+  }
+}
+
+void
+HttpClientSession::release(IOBufferReader * r)
+{
+  ink_assert(read_state == HCS_ACTIVE_READER);
+  ink_assert(current_reader != NULL);
+  MgmtInt ka_in = current_reader->t_state.txn_conf->keep_alive_no_activity_timeout_in;
+
+  DebugSsn("http_cs", "[%" PRId64 "] session released by sm [%" PRId64 "]", con_id, current_reader->sm_id);
+  current_reader = NULL;
+
+  // handling potential keep-alive here
+  if (m_active) {
+    m_active = false;
+    HTTP_DECREMENT_DYN_STAT(http_current_active_client_connections_stat);
+  }
+  // Make sure that the state machine is returning
+  //  correct buffer reader
+  ink_assert(r == sm_reader);
+  if (r != sm_reader) {
+    this->do_io_close();
+    return;
+  }
+
+  HTTP_DECREMENT_DYN_STAT(http_current_client_transactions_stat);
+
+  // Check to see there is remaining data in the
+  //  buffer.  If there is, spin up a new state
+  //  machine to process it.  Otherwise, issue an
+  //  IO to wait for new data
+  if (sm_reader->read_avail() > 0) {
+    DebugSsn("http_cs", "[%" PRId64 "] data already in buffer, starting new transaction", con_id);
+    new_transaction();
+  } else {
+    DebugSsn("http_cs", "[%" PRId64 "] initiating io for next header", con_id);
+    read_state = HCS_KEEP_ALIVE;
+    SET_HANDLER(&HttpClientSession::state_keep_alive);
+    ka_vio = this->do_io_read(this, INT64_MAX, read_buffer);
+    ink_assert(slave_ka_vio != ka_vio);
+    client_vc->set_inactivity_timeout(HRTIME_SECONDS(ka_in));
+    client_vc->cancel_active_timeout();
+  }
+}
+
+HttpServerSession *
+HttpClientSession::get_bound_ss()
+{
+  return bound_ss;
+}
diff --git a/proxy/http/HttpClientSession.h b/proxy/http/HttpClientSession.h
new file mode 100644
index 00000000..cb4c5ba3
--- /dev/null
+++ b/proxy/http/HttpClientSession.h
@@ -0,0 +1,176 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpClientSession.h
+
+   Description:
+
+ ****************************************************************************/
+
+#ifndef _HTTP_CLIENT_SESSION_H_
+#define _HTTP_CLIENT_SESSION_H_
+
+#include "libts.h"
+#include "P_Net.h"
+#include "InkAPIInternal.h"
+#include "HTTP.h"
+#include "HttpConfig.h"
+#include "IPAllow.h"
+
+extern ink_mutex debug_cs_list_mutex;
+
+class HttpSM;
+class HttpServerSession;
+
+class SecurityContext;
+
+class HttpClientSession: public VConnection
+{
+public:
+  HttpClientSession();
+  void cleanup();
+  virtual void destroy();
+
+  void new_connection(NetVConnection * new_vc, bool backdoor, MIOBuffer * iobuf, IOBufferReader * reader);
+
+  virtual VIO *do_io_read(Continuation * c, int64_t nbytes = INT64_MAX, MIOBuffer * buf = 0);
+  virtual VIO *do_io_write(Continuation * c = NULL, int64_t nbytes = INT64_MAX, IOBufferReader * buf = 0, bool owner = false);
+
+  virtual void do_io_close(int lerrno = -1);
+  virtual void do_io_shutdown(ShutdownHowTo_t howto);
+  virtual void reenable(VIO * vio);
+
+  void set_half_close_flag() { half_close = true; };
+  virtual void release(IOBufferReader * r);
+  NetVConnection *get_netvc() const { return client_vc;  };
+
+  virtual void attach_server_session(HttpServerSession * ssession, bool transaction_done = true);
+  HttpServerSession *get_server_session() const { return bound_ss; };
+
+  // Used for the cache authenticated HTTP content feature
+  HttpServerSession *get_bound_ss();
+
+  // Functions for manipulating api hooks
+  void ssn_hook_append(TSHttpHookID id, INKContInternal * cont);
+  void ssn_hook_prepend(TSHttpHookID id, INKContInternal * cont);
+  APIHook *ssn_hook_get(TSHttpHookID id);
+
+  // Used to verify we are recording the current
+  //   client transaction stat properly
+  int64_t con_id;
+
+  int get_transact_count() const { return  transact_count; }
+
+  void* get_user_arg(int ix) const { return user_args[ix]; }
+  void set_user_arg(int ix, void* arg) { user_args[ix] = arg; }
+
+private:
+  HttpClientSession(HttpClientSession &);
+
+  int state_keep_alive(int event, void *data);
+  int state_slave_keep_alive(int event, void *data);
+  int state_wait_for_close(int event, void *data);
+  void set_tcp_init_cwnd();
+
+  void handle_api_return(int event);
+  int state_api_callout(int event, void *data);
+  void do_api_callout(TSHttpHookID id);
+
+  virtual void new_transaction();
+
+  enum C_Read_State
+  {
+    HCS_INIT,
+    HCS_ACTIVE_READER,
+    HCS_KEEP_ALIVE,
+    HCS_HALF_CLOSED,
+    HCS_CLOSED
+  };
+
+  NetVConnection *client_vc;
+  int magic;
+  bool tcp_init_cwnd_set;
+  int transact_count;
+  bool half_close;
+  bool conn_decrease;
+  void *user_args[HTTP_SSN_TXN_MAX_USER_ARG];
+
+  HttpServerSession *bound_ss;
+
+  MIOBuffer *read_buffer;
+  IOBufferReader *sm_reader;
+  HttpSM *current_reader;
+  C_Read_State read_state;
+
+  VIO *ka_vio;
+  VIO *slave_ka_vio;
+
+  Link<HttpClientSession> debug_link;
+
+  TSHttpHookID cur_hook_id;
+  APIHook *cur_hook;
+  int cur_hooks;
+
+  // api_hooks must not be changed directly
+  //  Use ssn_hook_{ap,pre}pend so hooks_set is
+  //  updated
+  HttpAPIHooks api_hooks;
+
+public:
+  bool backdoor_connect;
+  int hooks_set;
+  /// Local address for outbound connection.
+  IpAddr outbound_ip4;
+  /// Local address for outbound connection.
+  IpAddr outbound_ip6;
+  /// Local port for outbound connection.
+  uint16_t outbound_port;
+  /// Set outbound connection to transparent.
+  bool f_outbound_transparent;
+  /// Transparently pass-through non-HTTP traffic.
+  bool f_transparent_passthrough;
+  /// DNS resolution preferences.
+  HostResStyle host_res_style;
+  /// acl record - cache IpAllow::match() call
+  const AclRecord *acl_record;
+
+  // for DI. An active connection is one that a request has
+  // been successfully parsed (PARSE_DONE) and it remains to
+  // be active until the transaction goes through or the client
+  // aborts.
+  bool m_active;
+  // Session specific debug flag
+  bool debug_on;
+};
+
+inline APIHook *
+HttpClientSession::ssn_hook_get(TSHttpHookID id)
+{
+  return api_hooks.get(id);
+}
+
+extern ClassAllocator<HttpClientSession> httpClientSessionAllocator;
+
+#endif
diff --git a/proxy/http/HttpConfig.cc b/proxy/http/HttpConfig.cc
new file mode 100644
index 00000000..974ead7e
--- /dev/null
+++ b/proxy/http/HttpConfig.cc
@@ -0,0 +1,1905 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include <ctype.h>
+#include <string.h>
+#include "HttpConfig.h"
+#include "HTTP.h"
+#include "ProcessManager.h"
+#include "ProxyConfig.h"
+#include "ICPProcessor.h"
+#include "P_Net.h"
+#include "P_RecUtils.h"
+#include <records/I_RecHttp.h>
+
+#ifndef min
+#define         min(a,b)        ((a) < (b) ? (a) : (b))
+#endif
+#ifndef max
+#define         max(a,b)        ((a) > (b) ? (a) : (b))
+#endif
+
+#define HttpEstablishStaticConfigStringAlloc(_ix,_n) \
+  REC_EstablishStaticConfigStringAlloc(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, http_config_cb, NULL)
+
+#define HttpEstablishStaticConfigLongLong(_ix,_n) \
+  REC_EstablishStaticConfigInteger(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, http_config_cb, NULL)
+
+#define HttpEstablishStaticConfigFloat(_ix,_n) \
+  REC_EstablishStaticConfigFloat(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, http_config_cb, NULL)
+
+#define HttpEstablishStaticConfigByte(_ix,_n) \
+  REC_EstablishStaticConfigByte(_ix,_n); \
+  REC_RegisterConfigUpdateFunc(_n, http_config_cb, NULL)
+
+
+RecRawStatBlock *http_rsb;
+#define HTTP_CLEAR_DYN_STAT(x) \
+do { \
+	RecSetRawStatSum(http_rsb, x, 0); \
+	RecSetRawStatCount(http_rsb, x, 0); \
+} while (0);
+
+
+class HttpConfigCont:public Continuation
+{
+public:
+  HttpConfigCont();
+  int handle_event(int event, void *edata);
+};
+
+/// Data item for enumerated type config value.
+template <typename T> struct ConfigEnumPair
+{
+  T _value;
+  char const* _key;
+};
+
+/// Convert a string to an enumeration value.
+/// @a n is the number of entries in the list.
+/// @return @c true if the string is found, @c false if not found.
+/// If found @a value is set to the corresponding value in @a list.
+template <typename T> static bool
+http_config_enum_search(char const* key, ConfigEnumPair<T>* list, size_t n, MgmtByte value)
+{
+  // We don't expect any of these lists to be more than 10 long, so a linear search is the best choice.
+  for ( size_t i = 0 ; i < n ; ++i ) {
+    if (0 == strcasecmp(list[i]._key, key)) {
+      value = list[i]._value;
+      return true;
+    }
+  }
+  return false;
+}
+
+/// Read a string from the configuration and convert it to an enumeration value.
+/// @a n is the number of entries in the list.
+/// @return @c true if the string is found, @c false if not found.
+/// If found @a value is set to the corresponding value in @a list.
+template <typename T> static bool
+http_config_enum_read(char const* name, ConfigEnumPair<T>* list, size_t n, MgmtByte value)
+{
+  char key[512]; // it's just one key - painful UI if keys are longer than this
+  if (REC_ERR_OKAY == RecGetRecordString(name, key, sizeof(key))) {
+    return http_config_enum_search(key, list, n, value);
+  }
+  return false;
+}
+
+/// Session sharing match types.
+static
+ConfigEnumPair<TSServerSessionSharingMatchType> SessionSharingMatchStrings[] =
+{
+  { TS_SERVER_SESSION_SHARING_MATCH_NONE, "none" },
+  { TS_SERVER_SESSION_SHARING_MATCH_IP, "ip" },
+  { TS_SERVER_SESSION_SHARING_MATCH_HOST, "host" },
+  { TS_SERVER_SESSION_SHARING_MATCH_BOTH, "both" }
+};
+  
+static
+ConfigEnumPair<TSServerSessionSharingPoolType> SessionSharingPoolStrings[] =
+{
+  { TS_SERVER_SESSION_SHARING_POOL_GLOBAL, "global" },
+  { TS_SERVER_SESSION_SHARING_POOL_THREAD, "thread" }
+};
+
+# define ARRAY_SIZE(x) (sizeof(x)/(sizeof((x)[0])))
+
+////////////////////////////////////////////////////////////////
+//
+//  static variables
+//
+////////////////////////////////////////////////////////////////
+int HttpConfig::m_id = 0;
+HttpConfigParams HttpConfig::m_master;
+HttpUserAgent_RegxEntry *HttpConfig::user_agent_list = NULL;
+
+static volatile int http_config_changes = 1;
+static HttpConfigCont *http_config_cont = NULL;
+
+
+HttpConfigCont::HttpConfigCont()
+  : Continuation(new_ProxyMutex())
+{
+  SET_HANDLER(&HttpConfigCont::handle_event);
+}
+
+int
+HttpConfigCont::handle_event(int /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  if (ink_atomic_increment((int *) &http_config_changes, -1) == 1) {
+    HttpConfig::reconfigure();
+  }
+  return 0;
+}
+
+
+static int
+http_config_cb(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+               RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  ink_atomic_increment((int *) &http_config_changes, 1);
+
+  INK_MEMORY_BARRIER;
+
+  eventProcessor.schedule_in(http_config_cont, HRTIME_SECONDS(1), ET_CALL);
+  return 0;
+}
+
+// Convert from the old share_server_session value to the new config vars.
+static void
+http_config_share_server_sessions_bc(HttpConfigParams* c, MgmtByte v)
+{
+  switch (v) {
+  case 0:
+    c->oride.server_session_sharing_match = TS_SERVER_SESSION_SHARING_MATCH_NONE;
+    c->oride.server_session_sharing_pool = TS_SERVER_SESSION_SHARING_POOL_GLOBAL;
+    break;
+  case 1:
+    c->oride.server_session_sharing_match = TS_SERVER_SESSION_SHARING_MATCH_BOTH;
+    c->oride.server_session_sharing_pool = TS_SERVER_SESSION_SHARING_POOL_GLOBAL;
+    break;
+  case 2:
+    c->oride.server_session_sharing_match = TS_SERVER_SESSION_SHARING_MATCH_BOTH;
+    c->oride.server_session_sharing_pool = TS_SERVER_SESSION_SHARING_POOL_THREAD;
+    break;
+  }
+}
+
+static void
+http_config_share_server_sessions_read_bc(HttpConfigParams* c)
+{
+  MgmtByte v;
+  if (REC_ERR_OKAY == RecGetRecordByte("proxy.config.http.share_server_sessions", &v)) 
+    http_config_share_server_sessions_bc(c, v);
+}
+
+// [amc] Not sure which is uglier, this switch or having a micro-function for each var.
+// Oh, how I long for when we can use C++eleventy lambdas without compiler problems!
+// I think for 5.0 when the BC stuff is yanked, we should probably revert this to independent callbacks.
+static int
+http_server_session_sharing_cb(char const* name, RecDataT dtype, RecData data, void* cookie)
+{
+  bool valid_p = true;
+  HttpConfigParams* c = static_cast<HttpConfigParams*>(cookie);
+
+  if (0 == strcasecmp("proxy.config.http.server_session_sharing.pool", name)) {
+    MgmtByte& match = c->oride.server_session_sharing_match;
+    if (RECD_INT == dtype) {
+      match = static_cast<TSServerSessionSharingMatchType>(data.rec_int);
+    } else if (RECD_STRING == dtype && http_config_enum_search(data.rec_string, SessionSharingMatchStrings, ARRAY_SIZE(SessionSharingMatchStrings), match)) {
+      // empty
+    } else {
+      valid_p = false;
+    }
+  } else if (0 == strcasecmp("proxy.config.http.server_session_sharing.match", name)) {
+    MgmtByte& match = c->oride.server_session_sharing_pool;
+    if (RECD_INT == dtype) {
+      match = static_cast<TSServerSessionSharingPoolType>(data.rec_int);
+    } else if (RECD_STRING == dtype && http_config_enum_search(data.rec_string, SessionSharingPoolStrings, ARRAY_SIZE(SessionSharingPoolStrings), match)) {
+      // empty
+    } else {
+      valid_p = false;
+    }
+  } else if (0 == strcasecmp("proxy.config.http.share_server_sessions", name) && RECD_INT == dtype) {
+    http_config_share_server_sessions_bc(c, data.rec_int);
+  } else {
+    valid_p = false;
+  }
+
+  // Signal an update if valid value arrived.
+  if (valid_p) 
+    http_config_cb(name, dtype, data, cookie);
+
+ return REC_ERR_OKAY;
+}
+
+void
+register_configs()
+{
+}
+
+void
+register_stat_callbacks()
+{
+
+  // Dynamic stats
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.background_fill_current_count",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_background_fill_current_count_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_background_fill_current_count_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_client_connections",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_client_connections_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_client_connections_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_active_client_connections",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) http_current_active_client_connections_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_active_client_connections_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.websocket.current_active_client_connections",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) http_websocket_current_active_client_connections_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_websocket_current_active_client_connections_stat);
+  // Current Transaction Stats
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_client_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_client_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_client_transactions_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_parent_proxy_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) http_current_parent_proxy_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_parent_proxy_transactions_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_icp_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_icp_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_icp_transactions_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_server_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_server_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_server_transactions_stat);
+  // Current Transaction (Raw) Stats
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_parent_proxy_raw_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) http_current_parent_proxy_raw_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_parent_proxy_raw_transactions_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_icp_raw_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_icp_raw_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_icp_raw_transactions_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_server_raw_transactions",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_server_raw_transactions_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_server_raw_transactions_stat);
+  // Total connections stats
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.completed_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_completed_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_incoming_connections",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_total_incoming_connections_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_client_connections",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_total_client_connections_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_client_connections_ipv4",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_total_client_connections_ipv4_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_client_connections_ipv6",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_total_client_connections_ipv6_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_server_connections",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_total_server_connections_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_parent_proxy_connections",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_total_parent_proxy_connections_stat, RecRawStatSyncCount);
+
+  // Upstream current connections stats
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_parent_proxy_connections",
+                     RECD_INT, RECP_NON_PERSISTENT,
+                     (int) http_current_parent_proxy_connections_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_parent_proxy_connections_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_server_connections",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_server_connections_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_server_connections_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.current_cache_connections",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) http_current_cache_connections_stat, RecRawStatSyncSum);
+  HTTP_CLEAR_DYN_STAT(http_current_cache_connections_stat);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.avg_transactions_per_client_connection",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) http_transactions_per_client_con, RecRawStatSyncAvg);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.avg_transactions_per_server_connection",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) http_transactions_per_server_con, RecRawStatSyncAvg);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.avg_transactions_per_parent_connection",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) http_transactions_per_parent_con, RecRawStatSyncAvg);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.client_connection_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_client_connection_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.parent_proxy_connection_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_parent_proxy_connection_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.server_connection_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_server_connection_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_connection_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_cache_connection_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.pre_accept_hangups",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_pre_accept_hangups_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.pre_accept_hangups",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_pre_accept_hangups_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.empty_hangups",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_empty_hangups_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.empty_hangups",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) http_ua_msecs_counts_errors_empty_hangups_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.early_hangups",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_early_hangups_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.early_hangups",
+                     RECD_FLOAT, RECP_PERSISTENT, (int) http_ua_msecs_counts_errors_early_hangups_stat, RecRawStatSyncCount);
+
+
+
+  // Transactional stats
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.incoming_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_incoming_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.outgoing_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_outgoing_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.incoming_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_incoming_responses_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.invalid_client_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_invalid_client_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.missing_host_hdr",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_missing_host_hdr_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.get_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_get_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.head_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_head_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.trace_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_trace_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.options_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_options_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.post_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_post_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.put_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_put_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.push_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_push_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.delete_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_delete_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.purge_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_purge_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.connect_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_connect_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.extension_method_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_extension_method_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.client_no_cache_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_client_no_cache_requests_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.broken_server_connections",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_broken_server_connections_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_lookups",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_lookups_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_writes",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_writes_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_updates",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_updates_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_deletes",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_deletes_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tunnels",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tunnels_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.throttled_proxy_only",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_throttled_proxy_only_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.icp_suggested_lookups",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_icp_suggested_lookups_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.client_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_client_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.client_write_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_client_write_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.server_read_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_server_read_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.icp_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_icp_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.icp_raw_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_icp_raw_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.parent_proxy_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_parent_proxy_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.parent_proxy_raw_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_parent_proxy_raw_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.server_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_server_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.server_raw_transaction_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_server_raw_transaction_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_request_header_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_user_agent_request_header_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_response_header_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_user_agent_response_header_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_request_document_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_user_agent_request_document_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_response_document_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_user_agent_response_document_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_request_header_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_origin_server_request_header_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_response_header_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_origin_server_response_header_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_request_document_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_origin_server_request_document_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_response_document_total_size",
+                     RECD_INT, RECP_PERSISTENT,
+                     (int) http_origin_server_response_document_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.parent_proxy_request_total_bytes",
+                     RECD_INT, RECP_PERSISTENT, (int) http_parent_proxy_request_total_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.parent_proxy_response_total_bytes",
+                     RECD_INT, RECP_PERSISTENT, (int) http_parent_proxy_response_total_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.pushed_response_header_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_pushed_response_header_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.pushed_document_total_size",
+                     RECD_INT, RECP_PERSISTENT, (int) http_pushed_document_total_size_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_100",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_100_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_1K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_1K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_3K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_3K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_5K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_5K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_10K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_10K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_1M",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_1M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.response_document_size_inf",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_document_size_inf_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_100",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_100_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_1K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_1K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_3K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_3K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_5K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_5K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_10K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_10K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_1M",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_1M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.request_document_size_inf",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_request_document_size_inf_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_100",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_100_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_1K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_1K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_10K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_10K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_100K",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_100K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_1M",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_1M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_10M",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_10M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.user_agent_speed_bytes_per_sec_100M",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_user_agent_speed_bytes_per_sec_100M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_100",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_100_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_1K",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_1K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_10K",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_10K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_100K",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_100K_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_1M",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_1M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_10M",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_10M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.origin_server_speed_bytes_per_sec_100M",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_origin_server_speed_bytes_per_sec_100M_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_transactions_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_total_transactions_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_transactions_think_time",
+                     RECD_INT, RECP_PERSISTENT, (int) http_total_transactions_think_time_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_hit_fresh",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_hit_fresh_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_hit_mem_fresh",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_hit_mem_fresh_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_hit_revalidated",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_hit_reval_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_hit_ims",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_hit_ims_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_hit_stale_served",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_hit_stale_served_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_miss_cold",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_miss_cold_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_miss_changed",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_miss_changed_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_miss_client_no_cache",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_miss_client_no_cache_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_miss_client_not_cacheable",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_miss_uncacheable_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_miss_ims",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_miss_ims_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_read_error",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_cache_read_error_stat, RecRawStatSyncCount);
+
+  /////////////////////////////////////////
+  // Bandwidth Savings Transaction Stats //
+  /////////////////////////////////////////
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_hit_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_hit_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_hit_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_hit_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_hit_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_hit_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_miss_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_miss_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_miss_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_miss_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_miss_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_miss_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_expired_miss_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_expired_miss_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_expired_miss_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_expired_miss_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_expired_miss_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_expired_miss_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_refresh_hit_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_refresh_hit_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_refresh_hit_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_refresh_hit_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_refresh_hit_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_refresh_hit_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_refresh_miss_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_refresh_miss_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_refresh_miss_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_refresh_miss_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_refresh_miss_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_refresh_miss_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_client_refresh_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_client_refresh_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_client_refresh_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_client_refresh_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_client_refresh_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_client_refresh_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_ims_hit_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_ims_hit_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_ims_hit_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_ims_hit_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_ims_hit_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_ims_hit_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_ims_miss_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_tcp_ims_miss_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_ims_miss_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_ims_miss_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.tcp_ims_miss_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_tcp_ims_miss_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.err_client_abort_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_err_client_abort_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.err_client_abort_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_err_client_abort_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.err_client_abort_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_err_client_abort_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.err_connect_fail_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_err_connect_fail_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.err_connect_fail_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_err_connect_fail_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.err_connect_fail_origin_server_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_err_connect_fail_origin_server_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.misc_count_stat",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_misc_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.misc_user_agent_bytes_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_misc_user_agent_bytes_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.background_fill_bytes_aborted_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_background_fill_bytes_aborted_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.background_fill_bytes_completed_stat",
+                     RECD_INT, RECP_PERSISTENT, (int) http_background_fill_bytes_completed_stat, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_write_errors",
+                     RECD_INT, RECP_PERSISTENT, (int) http_cache_write_errors, RecRawStatSyncSum);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.cache_read_errors",
+                     RECD_INT, RECP_PERSISTENT, (int) http_cache_read_errors, RecRawStatSyncSum);
+
+  ////////////////////////////////////////////////////////////////////////////////
+  // status code counts
+  ////////////////////////////////////////////////////////////////////////////////
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.100_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_100_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.101_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_101_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.1xx_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_1xx_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.200_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_200_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.201_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_201_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.202_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_202_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.203_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_203_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.204_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_204_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.205_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_205_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.206_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_206_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.2xx_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_2xx_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.300_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_300_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.301_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_301_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.302_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_302_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.303_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_303_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.304_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_304_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.305_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_305_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.307_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_307_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.3xx_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_3xx_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.400_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_400_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.401_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_401_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.402_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_402_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.403_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_403_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.404_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_404_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.405_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_405_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.406_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_406_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.407_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_407_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.408_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_408_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.409_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_409_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.410_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_410_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.411_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_411_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.412_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_412_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.413_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_413_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.414_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_414_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.415_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_415_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.416_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_416_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.4xx_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_4xx_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.500_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_500_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.501_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_501_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.502_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_502_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.503_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_503_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.504_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_504_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.505_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_505_count_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.5xx_responses",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_response_status_5xx_count_stat, RecRawStatSyncCount);
+
+
+  ////////////////////////////////////////////////////////////////////////////////
+  // http - time and count of transactions classified by client's point of view //
+  //  the internal stat is in msecs, the output time is float seconds           //
+  ////////////////////////////////////////////////////////////////////////////////
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.hit_fresh",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_hit_fresh_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.hit_fresh",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_hit_fresh_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.hit_fresh.process",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_hit_fresh_process_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.hit_fresh.process",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_hit_fresh_process_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.hit_revalidated",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_hit_reval_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.hit_revalidated",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_hit_reval_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.miss_cold",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_miss_cold_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.miss_cold",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_miss_cold_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.miss_not_cacheable",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_miss_uncacheable_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.miss_not_cacheable",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_miss_uncacheable_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.miss_changed",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_miss_changed_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.miss_changed",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_miss_changed_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.miss_client_no_cache",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_miss_client_no_cache_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.miss_client_no_cache",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_miss_client_no_cache_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.aborts",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_errors_aborts_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.aborts",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_aborts_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.possible_aborts",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_possible_aborts_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.possible_aborts",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_possible_aborts_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.connect_failed",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_connect_failed_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.connect_failed",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_connect_failed_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.errors.other",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_errors_other_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.errors.other",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_errors_other_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_counts.other.unclassified",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) http_ua_msecs_counts_other_unclassified_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.transaction_totaltime.other.unclassified",
+                     RECD_FLOAT, RECP_PERSISTENT,
+                     (int) http_ua_msecs_counts_other_unclassified_stat, RecRawStatSyncIntMsecsToFloatSeconds);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.http.total_x_redirect_count",
+                     RECD_COUNTER, RECP_PERSISTENT,
+                     (int) http_total_x_redirect_stat, RecRawStatSyncCount);
+
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.https.incoming_requests",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) https_incoming_requests_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(http_rsb, RECT_PROCESS,
+                     "proxy.process.https.total_client_connections",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) https_total_client_connections_stat, RecRawStatSyncCount);
+}
+
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::startup()
+//
+////////////////////////////////////////////////////////////////
+void
+HttpConfig::startup()
+{
+
+  http_rsb = RecAllocateRawStatBlock((int) http_stat_count);
+  register_configs();
+  register_stat_callbacks();
+
+  HttpConfigParams &c = m_master;
+
+  http_config_cont = new HttpConfigCont;
+
+  HttpEstablishStaticConfigStringAlloc(c.proxy_hostname, "proxy.config.proxy_name");
+  c.proxy_hostname_len = -1;
+
+  if (c.proxy_hostname == NULL) {
+    c.proxy_hostname = (char *)ats_malloc(sizeof(char));
+    c.proxy_hostname[0] = '\0';
+  }
+
+  RecHttpLoadIp("proxy.local.incoming_ip_to_bind", c.inbound_ip4, c.inbound_ip6);
+  RecHttpLoadIp("proxy.local.outgoing_ip_to_bind", c.outbound_ip4, c.outbound_ip6);
+
+#if TS_USE_RECLAIMABLE_FREELIST
+  HttpEstablishStaticConfigLongLong(cfg_debug_filter, "proxy.config.allocator.debug_filter");
+  HttpEstablishStaticConfigLongLong(cfg_enable_reclaim, "proxy.config.allocator.enable_reclaim");
+  HttpEstablishStaticConfigLongLong(cfg_max_overage, "proxy.config.allocator.max_overage");
+  HttpEstablishStaticConfigFloat(cfg_reclaim_factor, "proxy.config.allocator.reclaim_factor");
+#endif
+
+  HttpEstablishStaticConfigLongLong(c.server_max_connections, "proxy.config.http.server_max_connections");
+  HttpEstablishStaticConfigLongLong(c.oride.server_tcp_init_cwnd, "proxy.config.http.server_tcp_init_cwnd");
+  HttpEstablishStaticConfigLongLong(c.oride.origin_max_connections, "proxy.config.http.origin_max_connections");
+  HttpEstablishStaticConfigLongLong(c.origin_min_keep_alive_connections, "proxy.config.http.origin_min_keep_alive_connections");
+  HttpEstablishStaticConfigLongLong(c.attach_server_session_to_client, "proxy.config.http.attach_server_session_to_client");
+
+  HttpEstablishStaticConfigByte(c.parent_proxy_routing_enable, "proxy.config.http.parent_proxy_routing_enable");
+
+  // Wank me.
+  HttpEstablishStaticConfigByte(c.disable_ssl_parenting, "proxy.local.http.parent_proxy.disable_connect_tunneling");
+  HttpEstablishStaticConfigByte(c.no_dns_forward_to_parent, "proxy.config.http.no_dns_just_forward_to_parent");
+  HttpEstablishStaticConfigByte(c.uncacheable_requests_bypass_parent, "proxy.config.http.uncacheable_requests_bypass_parent");
+  HttpEstablishStaticConfigByte(c.oride.doc_in_cache_skip_dns, "proxy.config.http.doc_in_cache_skip_dns");
+
+  HttpEstablishStaticConfigByte(c.no_origin_server_dns, "proxy.config.http.no_origin_server_dns");
+  HttpEstablishStaticConfigByte(c.use_client_target_addr, "proxy.config.http.use_client_target_addr");
+  HttpEstablishStaticConfigByte(c.use_client_source_port, "proxy.config.http.use_client_source_port");
+  HttpEstablishStaticConfigByte(c.oride.maintain_pristine_host_hdr, "proxy.config.url_remap.pristine_host_hdr");
+
+  HttpEstablishStaticConfigByte(c.enable_url_expandomatic, "proxy.config.http.enable_url_expandomatic");
+
+  HttpEstablishStaticConfigByte(c.oride.insert_request_via_string, "proxy.config.http.insert_request_via_str");
+  HttpEstablishStaticConfigByte(c.oride.insert_response_via_string, "proxy.config.http.insert_response_via_str");
+  HttpEstablishStaticConfigLongLong(c.oride.proxy_response_hsts_max_age, "proxy.config.ssl.hsts_max_age");
+  HttpEstablishStaticConfigByte(c.oride.proxy_response_hsts_include_subdomains, "proxy.config.ssl.hsts_include_subdomains");
+
+  HttpEstablishStaticConfigStringAlloc(c.proxy_request_via_string, "proxy.config.http.request_via_str");
+  c.proxy_request_via_string_len = -1;
+  HttpEstablishStaticConfigStringAlloc(c.proxy_response_via_string, "proxy.config.http.response_via_str");
+  c.proxy_response_via_string_len = -1;
+
+  HttpEstablishStaticConfigStringAlloc(c.url_expansions_string, "proxy.config.dns.url_expansions");
+  HttpEstablishStaticConfigByte(c.oride.keep_alive_enabled_in, "proxy.config.http.keep_alive_enabled_in");
+  HttpEstablishStaticConfigByte(c.oride.keep_alive_enabled_out, "proxy.config.http.keep_alive_enabled_out");
+  HttpEstablishStaticConfigByte(c.oride.chunking_enabled, "proxy.config.http.chunking_enabled");
+  HttpEstablishStaticConfigLongLong(c.oride.http_chunking_size, "proxy.config.http.chunking.size");
+  HttpEstablishStaticConfigByte(c.oride.flow_control_enabled, "proxy.config.http.flow_control.enabled");
+  HttpEstablishStaticConfigLongLong(c.oride.flow_high_water_mark, "proxy.config.http.flow_control.high_water");
+  HttpEstablishStaticConfigLongLong(c.oride.flow_low_water_mark, "proxy.config.http.flow_control.low_water");
+//HttpEstablishStaticConfigByte(c.oride.share_server_sessions, "proxy.config.http.share_server_sessions");
+
+  // 4.2 Backwards compatibility
+  RecRegisterConfigUpdateCb("proxy.config.http.share_server_sessions", &http_server_session_sharing_cb, &c);
+  http_config_share_server_sessions_read_bc(&c);
+  // end 4.2 BC
+
+  // [amc] This is a bit of a mess, need to figure out to make this cleaner.
+  RecRegisterConfigUpdateCb("proxy.config.http.server_session_sharing.pool", &http_server_session_sharing_cb, &c);
+  http_config_enum_read("proxy.config.http.server_session_sharing.pool", SessionSharingPoolStrings, ARRAY_SIZE(SessionSharingPoolStrings), c.oride.server_session_sharing_pool);
+  RecRegisterConfigUpdateCb("proxy.config.http.server_session_sharing.match", &http_server_session_sharing_cb, &c);
+  http_config_enum_read("proxy.config.http.server_session_sharing.match", SessionSharingMatchStrings, ARRAY_SIZE(SessionSharingMatchStrings), c.oride.server_session_sharing_match);
+
+  HttpEstablishStaticConfigByte(c.oride.keep_alive_post_out, "proxy.config.http.keep_alive_post_out");
+
+  HttpEstablishStaticConfigLongLong(c.oride.keep_alive_no_activity_timeout_in,
+                                    "proxy.config.http.keep_alive_no_activity_timeout_in");
+  HttpEstablishStaticConfigLongLong(c.oride.keep_alive_no_activity_timeout_out,
+                                    "proxy.config.http.keep_alive_no_activity_timeout_out");
+  HttpEstablishStaticConfigLongLong(c.oride.transaction_no_activity_timeout_in,
+                                    "proxy.config.http.transaction_no_activity_timeout_in");
+  HttpEstablishStaticConfigLongLong(c.oride.transaction_no_activity_timeout_out,
+                                    "proxy.config.http.transaction_no_activity_timeout_out");
+  HttpEstablishStaticConfigLongLong(c.transaction_active_timeout_in, "proxy.config.http.transaction_active_timeout_in");
+  HttpEstablishStaticConfigLongLong(c.oride.transaction_active_timeout_out, "proxy.config.http.transaction_active_timeout_out");
+  HttpEstablishStaticConfigLongLong(c.accept_no_activity_timeout, "proxy.config.http.accept_no_activity_timeout");
+
+  HttpEstablishStaticConfigLongLong(c.oride.background_fill_active_timeout, "proxy.config.http.background_fill_active_timeout");
+  HttpEstablishStaticConfigFloat(c.oride.background_fill_threshold, "proxy.config.http.background_fill_completed_threshold");
+
+  HttpEstablishStaticConfigLongLong(c.oride.connect_attempts_max_retries, "proxy.config.http.connect_attempts_max_retries");
+  HttpEstablishStaticConfigLongLong(c.oride.connect_attempts_max_retries_dead_server,
+                                    "proxy.config.http.connect_attempts_max_retries_dead_server");
+
+  HttpEstablishStaticConfigLongLong(c.oride.connect_attempts_rr_retries, "proxy.config.http.connect_attempts_rr_retries");
+  HttpEstablishStaticConfigLongLong(c.oride.connect_attempts_timeout, "proxy.config.http.connect_attempts_timeout");
+  HttpEstablishStaticConfigLongLong(c.oride.post_connect_attempts_timeout, "proxy.config.http.post_connect_attempts_timeout");
+  HttpEstablishStaticConfigLongLong(c.parent_connect_attempts, "proxy.config.http.parent_proxy.total_connect_attempts");
+  HttpEstablishStaticConfigLongLong(c.per_parent_connect_attempts, "proxy.config.http.parent_proxy.per_parent_connect_attempts");
+  HttpEstablishStaticConfigLongLong(c.parent_connect_timeout, "proxy.config.http.parent_proxy.connect_attempts_timeout");
+
+  HttpEstablishStaticConfigLongLong(c.oride.sock_recv_buffer_size_out, "proxy.config.net.sock_recv_buffer_size_out");
+  HttpEstablishStaticConfigLongLong(c.oride.sock_send_buffer_size_out, "proxy.config.net.sock_send_buffer_size_out");
+  HttpEstablishStaticConfigLongLong(c.oride.sock_option_flag_out, "proxy.config.net.sock_option_flag_out");
+  HttpEstablishStaticConfigLongLong(c.oride.sock_packet_mark_out, "proxy.config.net.sock_packet_mark_out");
+  HttpEstablishStaticConfigLongLong(c.oride.sock_packet_tos_out, "proxy.config.net.sock_packet_tos_out");
+
+
+  HttpEstablishStaticConfigByte(c.oride.fwd_proxy_auth_to_parent, "proxy.config.http.forward.proxy_auth_to_parent");
+
+  HttpEstablishStaticConfigByte(c.oride.anonymize_remove_from, "proxy.config.http.anonymize_remove_from");
+  HttpEstablishStaticConfigByte(c.oride.anonymize_remove_referer, "proxy.config.http.anonymize_remove_referer");
+  HttpEstablishStaticConfigByte(c.oride.anonymize_remove_user_agent, "proxy.config.http.anonymize_remove_user_agent");
+  HttpEstablishStaticConfigByte(c.oride.anonymize_remove_cookie, "proxy.config.http.anonymize_remove_cookie");
+  HttpEstablishStaticConfigByte(c.oride.anonymize_remove_client_ip, "proxy.config.http.anonymize_remove_client_ip");
+  HttpEstablishStaticConfigByte(c.oride.anonymize_insert_client_ip, "proxy.config.http.anonymize_insert_client_ip");
+  HttpEstablishStaticConfigStringAlloc(c.anonymize_other_header_list, "proxy.config.http.anonymize_other_header_list");
+  HttpEstablishStaticConfigStringAlloc(c.global_user_agent_header, "proxy.config.http.global_user_agent_header");
+  c.global_user_agent_header_size = c.global_user_agent_header ? strlen(c.global_user_agent_header) : 0;
+
+  HttpEstablishStaticConfigByte(c.oride.proxy_response_server_enabled, "proxy.config.http.response_server_enabled");
+  HttpEstablishStaticConfigStringAlloc(c.oride.proxy_response_server_string, "proxy.config.http.response_server_str");
+  c.oride.proxy_response_server_string_len = c.oride.proxy_response_server_string ?
+    strlen(c.oride.proxy_response_server_string) : 0;
+
+  HttpEstablishStaticConfigByte(c.oride.insert_squid_x_forwarded_for, "proxy.config.http.insert_squid_x_forwarded_for");
+
+
+  HttpEstablishStaticConfigByte(c.oride.insert_age_in_response, "proxy.config.http.insert_age_in_response");
+  HttpEstablishStaticConfigByte(c.enable_http_stats, "proxy.config.http.enable_http_stats");
+  HttpEstablishStaticConfigByte(c.oride.normalize_ae_gzip, "proxy.config.http.normalize_ae_gzip");
+
+  HttpEstablishStaticConfigByte(c.icp_enabled, "proxy.config.icp.enabled");
+  HttpEstablishStaticConfigByte(c.stale_icp_enabled, "proxy.config.icp.stale_icp_enabled");
+
+  HttpEstablishStaticConfigLongLong(c.oride.cache_heuristic_min_lifetime, "proxy.config.http.cache.heuristic_min_lifetime");
+  HttpEstablishStaticConfigLongLong(c.oride.cache_heuristic_max_lifetime, "proxy.config.http.cache.heuristic_max_lifetime");
+  HttpEstablishStaticConfigFloat(c.oride.cache_heuristic_lm_factor, "proxy.config.http.cache.heuristic_lm_factor");
+
+  HttpEstablishStaticConfigLongLong(c.oride.cache_guaranteed_min_lifetime, "proxy.config.http.cache.guaranteed_min_lifetime");
+  HttpEstablishStaticConfigLongLong(c.oride.cache_guaranteed_max_lifetime, "proxy.config.http.cache.guaranteed_max_lifetime");
+
+  HttpEstablishStaticConfigLongLong(c.oride.cache_max_stale_age, "proxy.config.http.cache.max_stale_age");
+
+  HttpEstablishStaticConfigLongLong(c.oride.freshness_fuzz_time, "proxy.config.http.cache.fuzz.time");
+  HttpEstablishStaticConfigLongLong(c.oride.freshness_fuzz_min_time, "proxy.config.http.cache.fuzz.min_time");
+  HttpEstablishStaticConfigFloat(c.oride.freshness_fuzz_prob, "proxy.config.http.cache.fuzz.probability");
+
+  HttpEstablishStaticConfigStringAlloc(c.cache_vary_default_text, "proxy.config.http.cache.vary_default_text");
+  HttpEstablishStaticConfigStringAlloc(c.cache_vary_default_images, "proxy.config.http.cache.vary_default_images");
+  HttpEstablishStaticConfigStringAlloc(c.cache_vary_default_other, "proxy.config.http.cache.vary_default_other");
+
+  // open read failure retries
+  HttpEstablishStaticConfigLongLong(c.oride.max_cache_open_read_retries, "proxy.config.http.cache.max_open_read_retries");
+  HttpEstablishStaticConfigLongLong(c.oride.cache_open_read_retry_time, "proxy.config.http.cache.open_read_retry_time");
+
+  // open write failure retries
+  HttpEstablishStaticConfigLongLong(c.max_cache_open_write_retries, "proxy.config.http.cache.max_open_write_retries");
+
+  HttpEstablishStaticConfigByte(c.oride.cache_http, "proxy.config.http.cache.http");
+  HttpEstablishStaticConfigByte(c.oride.cache_cluster_cache_local, "proxy.config.http.cache.cluster_cache_local");
+  HttpEstablishStaticConfigByte(c.oride.cache_ignore_client_no_cache, "proxy.config.http.cache.ignore_client_no_cache");
+  HttpEstablishStaticConfigByte(c.oride.cache_ignore_client_cc_max_age, "proxy.config.http.cache.ignore_client_cc_max_age");
+  HttpEstablishStaticConfigByte(c.oride.cache_ims_on_client_no_cache, "proxy.config.http.cache.ims_on_client_no_cache");
+  HttpEstablishStaticConfigByte(c.oride.cache_ignore_server_no_cache, "proxy.config.http.cache.ignore_server_no_cache");
+  HttpEstablishStaticConfigByte(c.oride.cache_responses_to_cookies, "proxy.config.http.cache.cache_responses_to_cookies");
+
+  HttpEstablishStaticConfigByte(c.oride.cache_ignore_auth, "proxy.config.http.cache.ignore_authentication");
+  HttpEstablishStaticConfigByte(c.oride.cache_urls_that_look_dynamic, "proxy.config.http.cache.cache_urls_that_look_dynamic");
+  HttpEstablishStaticConfigByte(c.cache_enable_default_vary_headers, "proxy.config.http.cache.enable_default_vary_headers");
+
+  HttpEstablishStaticConfigByte(c.ignore_accept_mismatch, "proxy.config.http.cache.ignore_accept_mismatch");
+  HttpEstablishStaticConfigByte(c.ignore_accept_language_mismatch, "proxy.config.http.cache.ignore_accept_language_mismatch");
+  HttpEstablishStaticConfigByte(c.ignore_accept_encoding_mismatch, "proxy.config.http.cache.ignore_accept_encoding_mismatch");
+  HttpEstablishStaticConfigByte(c.ignore_accept_charset_mismatch, "proxy.config.http.cache.ignore_accept_charset_mismatch");
+
+  HttpEstablishStaticConfigByte(c.send_100_continue_response, "proxy.config.http.send_100_continue_response");
+
+  HttpEstablishStaticConfigByte(c.oride.cache_when_to_revalidate, "proxy.config.http.cache.when_to_revalidate");
+  HttpEstablishStaticConfigByte(c.oride.cache_required_headers, "proxy.config.http.cache.required_headers");
+  HttpEstablishStaticConfigByte(c.oride.cache_range_lookup, "proxy.config.http.cache.range.lookup");
+  HttpEstablishStaticConfigByte(c.oride.cache_range_write, "proxy.config.http.cache.range.write");
+
+  HttpEstablishStaticConfigStringAlloc(c.connect_ports_string, "proxy.config.http.connect_ports");
+
+  HttpEstablishStaticConfigLongLong(c.oride.request_hdr_max_size, "proxy.config.http.request_header_max_size");
+  HttpEstablishStaticConfigLongLong(c.oride.response_hdr_max_size, "proxy.config.http.response_header_max_size");
+
+  HttpEstablishStaticConfigByte(c.push_method_enabled, "proxy.config.http.push_method_enabled");
+
+  HttpEstablishStaticConfigByte(c.reverse_proxy_enabled, "proxy.config.reverse_proxy.enabled");
+  HttpEstablishStaticConfigByte(c.url_remap_required, "proxy.config.url_remap.remap_required");
+
+  HttpEstablishStaticConfigStringAlloc(c.reverse_proxy_no_host_redirect, "proxy.config.header.parse.no_host_url_redirect");
+  c.reverse_proxy_no_host_redirect_len = -1;
+
+  HttpEstablishStaticConfigByte(c.errors_log_error_pages, "proxy.config.http.errors.log_error_pages");
+
+  HttpEstablishStaticConfigLongLong(c.slow_log_threshold, "proxy.config.http.slow.log.threshold");
+
+  HttpEstablishStaticConfigByte(c.record_cop_page, "proxy.config.http.record_heartbeat");
+
+  HttpEstablishStaticConfigByte(c.record_tcp_mem_hit, "proxy.config.http.record_tcp_mem_hit");
+
+  HttpEstablishStaticConfigByte(c.oride.send_http11_requests, "proxy.config.http.send_http11_requests");
+
+  // HTTP Referer Filtering
+  HttpEstablishStaticConfigByte(c.referer_filter_enabled, "proxy.config.http.referer_filter");
+  HttpEstablishStaticConfigByte(c.referer_format_redirect, "proxy.config.http.referer_format_redirect");
+
+  HttpEstablishStaticConfigLongLong(c.oride.down_server_timeout, "proxy.config.http.down_server.cache_time");
+  HttpEstablishStaticConfigLongLong(c.oride.client_abort_threshold, "proxy.config.http.down_server.abort_threshold");
+
+  // Negative caching and revalidation
+  HttpEstablishStaticConfigByte(c.oride.negative_caching_enabled, "proxy.config.http.negative_caching_enabled");
+  HttpEstablishStaticConfigLongLong(c.oride.negative_caching_lifetime, "proxy.config.http.negative_caching_lifetime");
+  HttpEstablishStaticConfigByte(c.oride.negative_revalidating_enabled, "proxy.config.http.negative_revalidating_enabled");
+  HttpEstablishStaticConfigLongLong(c.oride.negative_revalidating_lifetime,
+                                    "proxy.config.http.negative_revalidating_lifetime");
+
+  // Buffer size and watermark
+  HttpEstablishStaticConfigLongLong(c.oride.default_buffer_size_index, "proxy.config.http.default_buffer_size");
+  HttpEstablishStaticConfigLongLong(c.oride.default_buffer_water_mark, "proxy.config.http.default_buffer_water_mark");
+
+  // Stat Page Info
+  HttpEstablishStaticConfigByte(c.enable_http_info, "proxy.config.http.enable_http_info");
+
+  //##############################################################################
+  //#
+  //# Redirection
+  //#
+  //# 1. redirection_enabled: if set to 1, redirection is enabled.
+  //# 2. number_of_redirections: The maximum number of redirections YTS permits
+  //# 3. post_copy_size: The maximum POST data size YTS permits to copy
+  //# 4. redirection_host_no_port: do not include default port in host header during redirection
+  //#
+  //##############################################################################
+  HttpEstablishStaticConfigByte(c.redirection_enabled, "proxy.config.http.redirection_enabled");
+  HttpEstablishStaticConfigByte(c.redirection_host_no_port, "proxy.config.http.redirect_host_no_port");
+  HttpEstablishStaticConfigLongLong(c.number_of_redirections, "proxy.config.http.number_of_redirections");
+  HttpEstablishStaticConfigLongLong(c.post_copy_size, "proxy.config.http.post_copy_size");
+
+  // Local Manager
+  HttpEstablishStaticConfigLongLong(c.autoconf_port, "proxy.config.admin.autoconf_port");
+  HttpEstablishStaticConfigByte(c.autoconf_localhost_only, "proxy.config.admin.autoconf.localhost_only");
+
+  // Cluster time delta gets it own callback since it needs
+  //  to use ink_atomic_swap
+  c.cluster_time_delta = 0;
+  RegisterMgmtCallback(MGMT_EVENT_HTTP_CLUSTER_DELTA, cluster_delta_cb, NULL);
+
+  http_config_cont->handleEvent(EVENT_NONE, NULL);
+
+  return;
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::reconfigure()
+//
+////////////////////////////////////////////////////////////////
+void
+HttpConfig::reconfigure()
+{
+#define INT_TO_BOOL(i) ((i) ? 1 : 0);
+
+  HttpConfigParams *params;
+
+  params = new HttpConfigParams;
+
+  params->inbound_ip4 = m_master.inbound_ip4;
+  params->inbound_ip6 = m_master.inbound_ip6;
+
+  params->outbound_ip4 = m_master.outbound_ip4;
+  params->outbound_ip6 = m_master.outbound_ip6;
+
+  params->proxy_hostname = ats_strdup(m_master.proxy_hostname);
+  params->proxy_hostname_len = (params->proxy_hostname) ? strlen(params->proxy_hostname) : 0;
+  params->no_dns_forward_to_parent = INT_TO_BOOL(m_master.no_dns_forward_to_parent);
+  params->uncacheable_requests_bypass_parent = INT_TO_BOOL(m_master.uncacheable_requests_bypass_parent);
+  params->no_origin_server_dns = INT_TO_BOOL(m_master.no_origin_server_dns);
+  params->use_client_target_addr = INT_TO_BOOL(m_master.use_client_target_addr);
+  params->use_client_source_port = INT_TO_BOOL(m_master.use_client_source_port);
+  params->oride.maintain_pristine_host_hdr = INT_TO_BOOL(m_master.oride.maintain_pristine_host_hdr);
+
+  params->disable_ssl_parenting = INT_TO_BOOL(m_master.disable_ssl_parenting);
+
+  params->server_max_connections = m_master.server_max_connections;
+  params->oride.server_tcp_init_cwnd = m_master.oride.server_tcp_init_cwnd;
+  params->oride.origin_max_connections = m_master.oride.origin_max_connections;
+  params->origin_min_keep_alive_connections = m_master.origin_min_keep_alive_connections;
+  params->attach_server_session_to_client = m_master.attach_server_session_to_client;
+
+  if (params->oride.origin_max_connections &&
+      params->oride.origin_max_connections < params->origin_min_keep_alive_connections ) {
+    Warning("origin_max_connections < origin_min_keep_alive_connections, setting min=max , please correct your records.config");
+    params->origin_min_keep_alive_connections = params->oride.origin_max_connections;
+  }
+
+  params->parent_proxy_routing_enable = INT_TO_BOOL(m_master.parent_proxy_routing_enable);
+  params->enable_url_expandomatic = INT_TO_BOOL(m_master.enable_url_expandomatic);
+
+  params->oride.insert_request_via_string = m_master.oride.insert_request_via_string;
+  params->oride.insert_response_via_string = m_master.oride.insert_response_via_string;
+  params->proxy_request_via_string = ats_strdup(m_master.proxy_request_via_string);
+  params->proxy_request_via_string_len = (params->proxy_request_via_string) ? strlen(params->proxy_request_via_string) : 0;
+  params->proxy_response_via_string = ats_strdup(m_master.proxy_response_via_string);
+  params->proxy_response_via_string_len = (params->proxy_response_via_string) ? strlen(params->proxy_response_via_string) : 0;
+  params->oride.proxy_response_hsts_max_age = m_master.oride.proxy_response_hsts_max_age;
+  params->oride.proxy_response_hsts_include_subdomains = m_master.oride.proxy_response_hsts_include_subdomains;
+
+  params->url_expansions_string = ats_strdup(m_master.url_expansions_string);
+  params->url_expansions = parse_url_expansions(params->url_expansions_string, &params->num_url_expansions);
+
+  params->oride.keep_alive_enabled_in = INT_TO_BOOL(m_master.oride.keep_alive_enabled_in);
+  params->oride.keep_alive_enabled_out = INT_TO_BOOL(m_master.oride.keep_alive_enabled_out);
+  params->oride.chunking_enabled = INT_TO_BOOL(m_master.oride.chunking_enabled);
+  params->oride.http_chunking_size = m_master.oride.http_chunking_size;
+
+  params->oride.flow_control_enabled = INT_TO_BOOL(m_master.oride.flow_control_enabled);
+  params->oride.flow_high_water_mark = m_master.oride.flow_high_water_mark;
+  params->oride.flow_low_water_mark = m_master.oride.flow_low_water_mark;
+  // If not set (zero) then make values the same.
+  if (params->oride.flow_low_water_mark <= 0)
+    params->oride.flow_low_water_mark = params->oride.flow_high_water_mark;
+  if (params->oride.flow_high_water_mark <= 0)
+    params->oride.flow_high_water_mark = params->oride.flow_low_water_mark;
+  if (params->oride.flow_high_water_mark < params->oride.flow_low_water_mark) {
+    Warning("Flow control low water mark is greater than high water mark, flow control disabled");
+    params->oride.flow_control_enabled = 0;
+    // zero means "hardwired default" when actually used.
+    params->oride.flow_high_water_mark = params->oride.flow_low_water_mark = 0;
+  }
+
+//  params->oride.share_server_sessions = m_master.oride.share_server_sessions;
+  params->oride.server_session_sharing_pool = m_master.oride.server_session_sharing_pool;
+  params->oride.server_session_sharing_match = m_master.oride.server_session_sharing_match;
+
+  params->oride.keep_alive_no_activity_timeout_in = m_master.oride.keep_alive_no_activity_timeout_in;
+  params->oride.keep_alive_no_activity_timeout_out = m_master.oride.keep_alive_no_activity_timeout_out;
+  params->oride.transaction_no_activity_timeout_in = m_master.oride.transaction_no_activity_timeout_in;
+  params->oride.transaction_no_activity_timeout_out = m_master.oride.transaction_no_activity_timeout_out;
+  params->transaction_active_timeout_in = m_master.transaction_active_timeout_in;
+  params->oride.transaction_active_timeout_out = m_master.oride.transaction_active_timeout_out;
+  params->accept_no_activity_timeout = m_master.accept_no_activity_timeout;
+  params->oride.background_fill_active_timeout = m_master.oride.background_fill_active_timeout;
+  params->oride.background_fill_threshold = m_master.oride.background_fill_threshold;
+
+  params->oride.connect_attempts_max_retries = m_master.oride.connect_attempts_max_retries;
+  params->oride.connect_attempts_max_retries_dead_server = m_master.oride.connect_attempts_max_retries_dead_server;
+  params->oride.connect_attempts_rr_retries = m_master.oride.connect_attempts_rr_retries;
+  params->oride.connect_attempts_timeout = m_master.oride.connect_attempts_timeout;
+  params->oride.post_connect_attempts_timeout = m_master.oride.post_connect_attempts_timeout;
+  params->parent_connect_attempts = m_master.parent_connect_attempts;
+  params->per_parent_connect_attempts = m_master.per_parent_connect_attempts;
+  params->parent_connect_timeout = m_master.parent_connect_timeout;
+
+  params->oride.sock_recv_buffer_size_out = m_master.oride.sock_recv_buffer_size_out;
+  params->oride.sock_send_buffer_size_out = m_master.oride.sock_send_buffer_size_out;
+  params->oride.sock_option_flag_out = m_master.oride.sock_option_flag_out;
+  params->oride.sock_packet_mark_out = m_master.oride.sock_packet_mark_out;
+  params->oride.sock_packet_tos_out = m_master.oride.sock_packet_tos_out;
+
+
+  params->oride.fwd_proxy_auth_to_parent = INT_TO_BOOL(m_master.oride.fwd_proxy_auth_to_parent);
+
+  params->oride.anonymize_remove_from = INT_TO_BOOL(m_master.oride.anonymize_remove_from);
+  params->oride.anonymize_remove_referer = INT_TO_BOOL(m_master.oride.anonymize_remove_referer);
+  params->oride.anonymize_remove_user_agent = INT_TO_BOOL(m_master.oride.anonymize_remove_user_agent);
+  params->oride.anonymize_remove_cookie = INT_TO_BOOL(m_master.oride.anonymize_remove_cookie);
+  params->oride.anonymize_remove_client_ip = INT_TO_BOOL(m_master.oride.anonymize_remove_client_ip);
+  params->oride.anonymize_insert_client_ip = INT_TO_BOOL(m_master.oride.anonymize_insert_client_ip);
+  params->anonymize_other_header_list = ats_strdup(m_master.anonymize_other_header_list);
+
+  params->global_user_agent_header = ats_strdup(m_master.global_user_agent_header);
+  params->global_user_agent_header_size = params->global_user_agent_header ?
+    strlen(params->global_user_agent_header) : 0;
+
+  params->oride.proxy_response_server_string = ats_strdup(m_master.oride.proxy_response_server_string);
+  params->oride.proxy_response_server_string_len = params->oride.proxy_response_server_string ?
+    strlen(params->oride.proxy_response_server_string) : 0;
+  params->oride.proxy_response_server_enabled = m_master.oride.proxy_response_server_enabled;
+
+  params->oride.insert_squid_x_forwarded_for = INT_TO_BOOL(m_master.oride.insert_squid_x_forwarded_for);
+  params->oride.insert_age_in_response = INT_TO_BOOL(m_master.oride.insert_age_in_response);
+  params->enable_http_stats = INT_TO_BOOL(m_master.enable_http_stats);
+  params->oride.normalize_ae_gzip = INT_TO_BOOL(m_master.oride.normalize_ae_gzip);
+
+  params->icp_enabled = (m_master.icp_enabled == ICP_MODE_SEND_RECEIVE ? 1 : 0); // INT_TO_BOOL
+  params->stale_icp_enabled = INT_TO_BOOL(m_master.stale_icp_enabled);
+
+  params->oride.cache_heuristic_min_lifetime = m_master.oride.cache_heuristic_min_lifetime;
+  params->oride.cache_heuristic_max_lifetime = m_master.oride.cache_heuristic_max_lifetime;
+  params->oride.cache_heuristic_lm_factor = min(max(m_master.oride.cache_heuristic_lm_factor, 0), 1);
+
+  params->oride.cache_guaranteed_min_lifetime = m_master.oride.cache_guaranteed_min_lifetime;
+  params->oride.cache_guaranteed_max_lifetime = m_master.oride.cache_guaranteed_max_lifetime;
+
+  params->oride.cache_max_stale_age = m_master.oride.cache_max_stale_age;
+  params->oride.freshness_fuzz_time = m_master.oride.freshness_fuzz_time;
+  params->oride.freshness_fuzz_min_time = m_master.oride.freshness_fuzz_min_time;
+  params->oride.freshness_fuzz_prob = m_master.oride.freshness_fuzz_prob;
+
+  params->cache_vary_default_text = ats_strdup(m_master.cache_vary_default_text);
+  params->cache_vary_default_images = ats_strdup(m_master.cache_vary_default_images);
+  params->cache_vary_default_other = ats_strdup(m_master.cache_vary_default_other);
+
+  // open read failure retries
+  params->oride.max_cache_open_read_retries = m_master.oride.max_cache_open_read_retries;
+  params->oride.cache_open_read_retry_time = m_master.oride.cache_open_read_retry_time;
+
+  // open write failure retries
+  params->max_cache_open_write_retries = m_master.max_cache_open_write_retries;
+
+  params->oride.cache_http = INT_TO_BOOL(m_master.oride.cache_http);
+  params->oride.cache_cluster_cache_local = INT_TO_BOOL(m_master.oride.cache_cluster_cache_local);
+  params->oride.cache_ignore_client_no_cache = INT_TO_BOOL(m_master.oride.cache_ignore_client_no_cache);
+  params->oride.cache_ignore_client_cc_max_age = INT_TO_BOOL(m_master.oride.cache_ignore_client_cc_max_age);
+  params->oride.cache_ims_on_client_no_cache = INT_TO_BOOL(m_master.oride.cache_ims_on_client_no_cache);
+  params->oride.cache_ignore_server_no_cache = INT_TO_BOOL(m_master.oride.cache_ignore_server_no_cache);
+  params->oride.cache_responses_to_cookies = m_master.oride.cache_responses_to_cookies;
+  params->oride.cache_ignore_auth = INT_TO_BOOL(m_master.oride.cache_ignore_auth);
+  params->oride.cache_urls_that_look_dynamic = INT_TO_BOOL(m_master.oride.cache_urls_that_look_dynamic);
+  params->cache_enable_default_vary_headers = INT_TO_BOOL(m_master.cache_enable_default_vary_headers);
+
+  params->ignore_accept_mismatch = m_master.ignore_accept_mismatch;
+  params->ignore_accept_language_mismatch = m_master.ignore_accept_language_mismatch;
+  params->ignore_accept_encoding_mismatch = m_master.ignore_accept_encoding_mismatch;
+  params->ignore_accept_charset_mismatch = m_master.ignore_accept_charset_mismatch;
+
+  params->send_100_continue_response = INT_TO_BOOL(m_master.send_100_continue_response);
+
+  params->oride.cache_when_to_revalidate = m_master.oride.cache_when_to_revalidate;
+
+  params->oride.cache_required_headers = m_master.oride.cache_required_headers;
+  params->oride.cache_range_lookup = INT_TO_BOOL(m_master.oride.cache_range_lookup);
+  params->oride.cache_range_write = INT_TO_BOOL(m_master.oride.cache_range_write);
+
+  params->connect_ports_string = ats_strdup(m_master.connect_ports_string);
+  params->connect_ports = parse_ports_list(params->connect_ports_string);
+
+  params->oride.request_hdr_max_size = m_master.oride.request_hdr_max_size;
+  params->oride.response_hdr_max_size = m_master.oride.response_hdr_max_size;
+
+params->push_method_enabled = INT_TO_BOOL(m_master.push_method_enabled);
+
+  params->reverse_proxy_enabled = INT_TO_BOOL(m_master.reverse_proxy_enabled);
+  params->url_remap_required = INT_TO_BOOL(m_master.url_remap_required);
+  params->errors_log_error_pages = INT_TO_BOOL(m_master.errors_log_error_pages);
+  params->slow_log_threshold = m_master.slow_log_threshold;
+  params->record_cop_page = INT_TO_BOOL(m_master.record_cop_page);
+  params->record_tcp_mem_hit = INT_TO_BOOL(m_master.record_tcp_mem_hit);
+  params->oride.send_http11_requests = m_master.oride.send_http11_requests;
+  params->oride.doc_in_cache_skip_dns = INT_TO_BOOL(m_master.oride.doc_in_cache_skip_dns);
+  params->oride.default_buffer_size_index = m_master.oride.default_buffer_size_index;
+  params->oride.default_buffer_water_mark = m_master.oride.default_buffer_water_mark;
+  params->enable_http_info = INT_TO_BOOL(m_master.enable_http_info);
+  params->reverse_proxy_no_host_redirect = ats_strdup(m_master.reverse_proxy_no_host_redirect);
+  params->reverse_proxy_no_host_redirect_len =
+    params->reverse_proxy_no_host_redirect ? strlen(params->reverse_proxy_no_host_redirect) : 0;
+
+  params->referer_filter_enabled = INT_TO_BOOL(m_master.referer_filter_enabled);
+  params->referer_format_redirect = INT_TO_BOOL(m_master.referer_format_redirect);
+
+  params->oride.accept_encoding_filter_enabled = INT_TO_BOOL(m_master.oride.accept_encoding_filter_enabled);
+
+  params->oride.down_server_timeout = m_master.oride.down_server_timeout;
+  params->oride.client_abort_threshold = m_master.oride.client_abort_threshold;
+
+  params->oride.negative_caching_enabled = INT_TO_BOOL(m_master.oride.negative_caching_enabled);
+  params->oride.negative_caching_lifetime = m_master.oride.negative_caching_lifetime;
+  params->oride.negative_revalidating_enabled = INT_TO_BOOL(m_master.oride.negative_revalidating_enabled);
+  params->oride.negative_revalidating_lifetime = m_master.oride.negative_revalidating_lifetime;
+
+  //##############################################################################
+  //#
+  //# Redirection
+  //#
+  //# 1. redirection_enabled: if set to 1, redirection is enabled.
+  //# 2. number_of_redirections: The maximum number of redirections YTS permits
+  //# 3. post_copy_size: The maximum POST data size YTS permits to copy
+  //# 4. redirection_host_no_port: do not include default port in host header during redirection
+  //#
+  //##############################################################################
+
+  params->redirection_enabled = INT_TO_BOOL(m_master.redirection_enabled);
+  params->redirection_host_no_port = INT_TO_BOOL(m_master.redirection_host_no_port);
+  params->number_of_redirections = m_master.number_of_redirections;
+  params->post_copy_size = m_master.post_copy_size;
+
+  // Local Manager
+  params->autoconf_port = m_master.autoconf_port;
+  params->autoconf_localhost_only = m_master.autoconf_localhost_only;
+
+  m_id = configProcessor.set(m_id, params);
+
+#undef INT_TO_BOOL
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::acquire()
+//
+////////////////////////////////////////////////////////////////
+HttpConfigParams *
+HttpConfig::acquire()
+{
+  if (m_id != 0) {
+    return (HttpConfigParams *) configProcessor.get(m_id);
+  } else {
+    return NULL;
+  }
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::release()
+//
+////////////////////////////////////////////////////////////////
+void
+HttpConfig::release(HttpConfigParams * params)
+{
+  configProcessor.release(m_id, params);
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::parse_ports_list()
+//
+////////////////////////////////////////////////////////////////
+HttpConfigPortRange *
+HttpConfig::parse_ports_list(char *ports_string)
+{
+  HttpConfigPortRange *ports_list = 0;
+
+  if (!ports_string)
+    return (0);
+
+  if (strchr(ports_string, '*')) {
+    ports_list = new HttpConfigPortRange;
+    ports_list->low = -1;
+    ports_list->high = -1;
+    ports_list->next = NULL;
+  } else {
+    HttpConfigPortRange *pr, *prev;
+    char *start;
+    char *end;
+
+    pr = NULL;
+    prev = NULL;
+
+    start = ports_string;
+
+    while (1) {                 // eat whitespace
+      while ((start[0] != '\0') && ParseRules::is_space(start[0]))
+        start++;
+
+      // locate the end of the next number
+      end = start;
+      while ((end[0] != '\0') && ParseRules::is_digit(end[0]))
+        end++;
+
+      // if there is no next number we're done
+      if (start == end)
+        break;
+
+      pr = new HttpConfigPortRange;
+      pr->low = atoi(start);
+      pr->high = pr->low;
+      pr->next = NULL;
+
+      if (prev)
+        prev->next = pr;
+      else
+        ports_list = pr;
+      prev = pr;
+
+      // if the next character after the current port
+      //  number is a dash then we are parsing a range
+      if (end[0] == '-') {
+        start = end + 1;
+        while ((start[0] != '\0') && ParseRules::is_space(start[0]))
+          start++;
+
+        end = start;
+        while ((end[0] != '\0') && ParseRules::is_digit(end[0]))
+          end++;
+
+        if (start == end)
+          break;
+
+        pr->high = atoi(start);
+      }
+
+      start = end;
+
+      ink_release_assert(pr->low <= pr->high);
+    }
+  }
+  return (ports_list);
+}
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::parse_url_expansions()
+//
+////////////////////////////////////////////////////////////////
+char **
+HttpConfig::parse_url_expansions(char *url_expansions_str, int *num_expansions)
+{
+  char **expansions = NULL;
+  int count = 0, i;
+
+  if (!url_expansions_str) {
+    *num_expansions = count;
+    return expansions;
+  }
+  // First count the number of URL expansions in the string
+  char *start = url_expansions_str, *end;
+  while (1) {
+    // Skip whitespace
+    while (isspace(*start))
+      start++;
+    if (*start == '\0')
+      break;
+    count++;
+    end = start + 1;
+
+    // Find end of expansion
+    while (!isspace(*end) && *end != '\0')
+      end++;
+    start = end;
+  }
+
+  // Now extract the URL expansions
+  if (count) {
+    expansions = (char **)ats_malloc(count * sizeof(char *));
+    start = url_expansions_str;
+    for (i = 0; i < count; i++) {
+      // Skip whitespace
+      while (isspace(*start))
+        start++;
+      expansions[i] = start;
+      end = start + 1;
+
+      // Find end of expansion
+      while (!isspace(*end) && *end != '\0')
+        end++;
+      *end = '\0';
+      if (i < (count - 1))
+        start = end + 1;
+
+    }
+  }
+
+  *num_expansions = count;
+  return expansions;
+}
+
+
+////////////////////////////////////////////////////////////////
+//
+//  HttpConfig::cluster_delta_cb
+//
+////////////////////////////////////////////////////////////////
+void *
+HttpConfig::cluster_delta_cb(void * /* opaque_token ATS_UNUSED */, char *data_raw, int /* data_len ATS_UNUSED */)
+{
+  int32_t delta32 = (int32_t) atoi(data_raw);
+  int32_t old;
+
+  // Using ink_atomic_swap is mostly paranoia since a thirty bit write
+  //  really ought to atomic.  However, any risk of bogus time is
+  //  too ugly for me to contemplate
+  old = ink_atomic_swap(&HttpConfig::m_master.cluster_time_delta, delta32);
+  Debug("http_trans", "Cluster time delta moving from %d to %d", old, delta32);
+
+  return NULL;
+
+}
+
+volatile int32_t icp_dynamic_enabled;
diff --git a/proxy/http/HttpConfig.h b/proxy/http/HttpConfig.h
new file mode 100644
index 00000000..cf52b519
--- /dev/null
+++ b/proxy/http/HttpConfig.h
@@ -0,0 +1,971 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/*************************** -*- Mod: C++ -*- ******************************
+
+  HttpConfig.h
+   Created On      : Tue Oct 22 20:19:04 1996
+
+   Description:
+   Http Configurations
+
+
+ ****************************************************************************/
+#ifndef _HttpConfig_h_
+#define _HttpConfig_h_
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+
+#include "libts.h"
+#include "HttpProxyAPIEnums.h"
+#include "ProxyConfig.h"
+
+#include "P_RecProcess.h"
+
+
+/* Some defines that might be candidates for configurable settings later.
+ */
+#define HTTP_SSN_TXN_MAX_USER_ARG         16   /* max number of user arguments for Transactions and Sessions */
+
+
+/* Instead of enumerating the stats in DynamicStats.h, each module needs
+   to enumerate its stats separately and register them with librecords
+   */
+enum
+{
+  http_background_fill_current_count_stat,
+  http_current_client_connections_stat,
+  http_current_active_client_connections_stat,
+  http_websocket_current_active_client_connections_stat,
+  http_current_client_transactions_stat,
+  http_total_incoming_connections_stat,
+  http_current_parent_proxy_transactions_stat,
+  http_current_icp_transactions_stat,
+  http_current_server_transactions_stat,
+  http_current_parent_proxy_raw_transactions_stat,
+  http_current_icp_raw_transactions_stat,
+  http_current_server_raw_transactions_stat,
+
+  //  Http Abort information (from HttpNetConnection)
+  http_ua_msecs_counts_errors_pre_accept_hangups_stat,
+  http_ua_msecs_counts_errors_empty_hangups_stat,
+  http_ua_msecs_counts_errors_early_hangups_stat,
+
+  // Http Total Connections Stats
+  //
+  // it is assumed that this inequality will always be satisifed:
+  //   http_total_client_connections_stat >=
+  //     http_total_client_connections_ipv4_stat +
+  //     http_total_client_connections_ipv6_stat
+  http_total_client_connections_stat,
+  http_total_client_connections_ipv4_stat,
+  http_total_client_connections_ipv6_stat,
+  http_total_server_connections_stat,
+  http_total_parent_proxy_connections_stat,
+  http_current_parent_proxy_connections_stat,
+  http_current_server_connections_stat,
+  http_current_cache_connections_stat,
+
+  // Http K-A Stats
+  http_transactions_per_client_con,
+  http_transactions_per_server_con,
+  http_transactions_per_parent_con,
+
+  // Http Time Stuff
+  http_client_connection_time_stat,
+  http_parent_proxy_connection_time_stat,
+  http_server_connection_time_stat,
+  http_cache_connection_time_stat,
+
+
+  // Transactional stats (originaly in proxy/HttpTransStats.h)
+  http_incoming_requests_stat,
+  http_outgoing_requests_stat,
+  http_incoming_responses_stat,
+  http_invalid_client_requests_stat,
+  http_missing_host_hdr_stat,
+  http_get_requests_stat,
+  http_head_requests_stat,
+  http_trace_requests_stat,
+  http_options_requests_stat,
+  http_post_requests_stat,
+  http_put_requests_stat,
+  http_push_requests_stat,
+  http_delete_requests_stat,
+  http_purge_requests_stat,
+  http_connect_requests_stat,
+  http_extension_method_requests_stat,
+
+  http_completed_requests_stat,
+
+  http_client_no_cache_requests_stat,
+
+  //    http_icp_requests_stat,
+  //    http_icp_invalid_responses_stat,
+  //    http_parent_proxy_requests_stat,
+  //    http_parent_invalid_responses_stat,
+  //    http_invalid_responses_stat,
+  //    http_retried_requests_stat,
+
+  http_broken_server_connections_stat,
+
+  http_cache_lookups_stat,
+  http_cache_misses_stat,
+  http_cache_writes_stat,
+  http_cache_updates_stat,
+  http_cache_deletes_stat,
+
+  http_tunnels_stat,
+  http_throttled_proxy_only_stat,
+
+  http_icp_suggested_lookups_stat,
+
+  // document size stats
+  http_user_agent_request_header_total_size_stat,
+  http_user_agent_response_header_total_size_stat,
+  http_user_agent_request_document_total_size_stat,
+  http_user_agent_response_document_total_size_stat,
+
+  http_origin_server_request_header_total_size_stat,
+  http_origin_server_response_header_total_size_stat,
+  http_origin_server_request_document_total_size_stat,
+  http_origin_server_response_document_total_size_stat,
+
+  http_parent_proxy_request_total_bytes_stat,
+  http_parent_proxy_response_total_bytes_stat,
+
+  http_pushed_response_header_total_size_stat,
+  http_pushed_document_total_size_stat,
+
+  http_background_fill_bytes_aborted_stat,
+  http_background_fill_bytes_completed_stat,
+
+  http_response_document_size_100_stat,
+  http_response_document_size_1K_stat,
+  http_response_document_size_3K_stat,
+  http_response_document_size_5K_stat,
+  http_response_document_size_10K_stat,
+  http_response_document_size_1M_stat,
+  http_response_document_size_inf_stat,
+
+  http_request_document_size_100_stat,
+  http_request_document_size_1K_stat,
+  http_request_document_size_3K_stat,
+  http_request_document_size_5K_stat,
+  http_request_document_size_10K_stat,
+  http_request_document_size_1M_stat,
+  http_request_document_size_inf_stat,
+
+  // connection speed stats
+  http_user_agent_speed_bytes_per_sec_100_stat,
+  http_user_agent_speed_bytes_per_sec_1K_stat,
+  http_user_agent_speed_bytes_per_sec_10K_stat,
+  http_user_agent_speed_bytes_per_sec_100K_stat,
+  http_user_agent_speed_bytes_per_sec_1M_stat,
+  http_user_agent_speed_bytes_per_sec_10M_stat,
+  http_user_agent_speed_bytes_per_sec_100M_stat,
+  http_origin_server_speed_bytes_per_sec_100_stat,
+  http_origin_server_speed_bytes_per_sec_1K_stat,
+  http_origin_server_speed_bytes_per_sec_10K_stat,
+  http_origin_server_speed_bytes_per_sec_100K_stat,
+  http_origin_server_speed_bytes_per_sec_1M_stat,
+  http_origin_server_speed_bytes_per_sec_10M_stat,
+  http_origin_server_speed_bytes_per_sec_100M_stat,
+
+  // cache result stats
+  http_cache_hit_fresh_stat,
+  http_cache_hit_mem_fresh_stat,
+  http_cache_hit_reval_stat,
+  http_cache_hit_ims_stat,
+  http_cache_hit_stale_served_stat,
+  http_cache_miss_cold_stat,
+  http_cache_miss_changed_stat,
+  http_cache_miss_client_no_cache_stat,
+  http_cache_miss_uncacheable_stat,
+  http_cache_miss_ims_stat,
+  http_cache_read_error_stat,
+
+  // bandwidth savings stats
+  http_tcp_hit_count_stat,
+  http_tcp_hit_user_agent_bytes_stat,
+  http_tcp_hit_origin_server_bytes_stat,
+  http_tcp_miss_count_stat,
+  http_tcp_miss_user_agent_bytes_stat,
+  http_tcp_miss_origin_server_bytes_stat,
+  http_tcp_expired_miss_count_stat,
+  http_tcp_expired_miss_user_agent_bytes_stat,
+  http_tcp_expired_miss_origin_server_bytes_stat,
+  http_tcp_refresh_hit_count_stat,
+  http_tcp_refresh_hit_user_agent_bytes_stat,
+  http_tcp_refresh_hit_origin_server_bytes_stat,
+  http_tcp_refresh_miss_count_stat,
+  http_tcp_refresh_miss_user_agent_bytes_stat,
+  http_tcp_refresh_miss_origin_server_bytes_stat,
+  http_tcp_client_refresh_count_stat,
+  http_tcp_client_refresh_user_agent_bytes_stat,
+  http_tcp_client_refresh_origin_server_bytes_stat,
+  http_tcp_ims_hit_count_stat,
+  http_tcp_ims_hit_user_agent_bytes_stat,
+  http_tcp_ims_hit_origin_server_bytes_stat,
+  http_tcp_ims_miss_count_stat,
+  http_tcp_ims_miss_user_agent_bytes_stat,
+  http_tcp_ims_miss_origin_server_bytes_stat,
+  http_err_client_abort_count_stat,
+  http_err_client_abort_user_agent_bytes_stat,
+  http_err_client_abort_origin_server_bytes_stat,
+  http_err_connect_fail_count_stat,
+  http_err_connect_fail_user_agent_bytes_stat,
+  http_err_connect_fail_origin_server_bytes_stat,
+  http_misc_count_stat,
+  http_misc_user_agent_bytes_stat,
+  http_misc_origin_server_bytes_stat,
+
+  // http - time and count of transactions classified by client's point of view
+  http_ua_msecs_counts_hit_fresh_stat,
+
+  http_ua_msecs_counts_hit_fresh_process_stat,
+  http_ua_msecs_counts_hit_reval_stat,
+  http_ua_msecs_counts_hit_ims_stat,
+  http_ua_msecs_counts_hit_stale_served_stat,
+  http_ua_msecs_counts_miss_cold_stat,
+  http_ua_msecs_counts_miss_changed_stat,
+  http_ua_msecs_counts_miss_client_no_cache_stat,
+  http_ua_msecs_counts_miss_uncacheable_stat,
+  http_ua_msecs_counts_miss_ims_stat,
+  http_ua_msecs_counts_errors_aborts_stat,
+  http_ua_msecs_counts_errors_possible_aborts_stat,
+  http_ua_msecs_counts_errors_connect_failed_stat,
+  http_ua_msecs_counts_errors_other_stat,
+  http_ua_msecs_counts_other_unclassified_stat,
+
+  http_total_x_redirect_stat,
+
+  // Times
+  http_total_transactions_time_stat,
+  http_total_transactions_think_time_stat,
+
+  http_client_transaction_time_stat,
+
+  http_client_write_time_stat,
+  http_server_read_time_stat,
+
+  http_icp_transaction_time_stat,
+  http_icp_raw_transaction_time_stat,
+  http_parent_proxy_transaction_time_stat,
+  http_parent_proxy_raw_transaction_time_stat,
+  http_server_transaction_time_stat,
+  http_server_raw_transaction_time_stat,
+
+  // Http cache errors
+  http_cache_write_errors,
+  http_cache_read_errors,
+
+  // status code stats
+  http_response_status_100_count_stat,
+  http_response_status_101_count_stat,
+  http_response_status_1xx_count_stat,
+  http_response_status_200_count_stat,
+  http_response_status_201_count_stat,
+  http_response_status_202_count_stat,
+  http_response_status_203_count_stat,
+  http_response_status_204_count_stat,
+  http_response_status_205_count_stat,
+  http_response_status_206_count_stat,
+  http_response_status_2xx_count_stat,
+  http_response_status_300_count_stat,
+  http_response_status_301_count_stat,
+  http_response_status_302_count_stat,
+  http_response_status_303_count_stat,
+  http_response_status_304_count_stat,
+  http_response_status_305_count_stat,
+  http_response_status_307_count_stat,
+  http_response_status_3xx_count_stat,
+  http_response_status_400_count_stat,
+  http_response_status_401_count_stat,
+  http_response_status_402_count_stat,
+  http_response_status_403_count_stat,
+  http_response_status_404_count_stat,
+  http_response_status_405_count_stat,
+  http_response_status_406_count_stat,
+  http_response_status_407_count_stat,
+  http_response_status_408_count_stat,
+  http_response_status_409_count_stat,
+  http_response_status_410_count_stat,
+  http_response_status_411_count_stat,
+  http_response_status_412_count_stat,
+  http_response_status_413_count_stat,
+  http_response_status_414_count_stat,
+  http_response_status_415_count_stat,
+  http_response_status_416_count_stat,
+  http_response_status_4xx_count_stat,
+  http_response_status_500_count_stat,
+  http_response_status_501_count_stat,
+  http_response_status_502_count_stat,
+  http_response_status_503_count_stat,
+  http_response_status_504_count_stat,
+  http_response_status_505_count_stat,
+  http_response_status_5xx_count_stat,
+
+  https_incoming_requests_stat,
+  https_total_client_connections_stat,
+
+  http_stat_count
+};
+
+extern RecRawStatBlock *http_rsb;
+
+/* Stats should only be accessed using these macros */
+#define HTTP_INCREMENT_DYN_STAT(x) RecIncrRawStat(http_rsb, mutex->thread_holding, (int) x, 1)
+#define HTTP_DECREMENT_DYN_STAT(x) RecIncrRawStat(http_rsb, mutex->thread_holding, (int) x, -1)
+#define HTTP_SUM_DYN_STAT(x, y) RecIncrRawStat(http_rsb, mutex->thread_holding, (int) x, (int64_t) y)
+#define HTTP_SUM_GLOBAL_DYN_STAT(x, y) RecIncrGlobalRawStatSum(http_rsb, x, y)
+
+#define HTTP_CLEAR_DYN_STAT(x) \
+do { \
+        RecSetRawStatSum(http_rsb, x, 0); \
+        RecSetRawStatCount(http_rsb, x, 0); \
+ } while (0);
+
+#define HTTP_READ_DYN_SUM(x, S) RecGetRawStatSum(http_rsb, (int)x, &S) // This aggregates threads too
+#define HTTP_READ_GLOBAL_DYN_SUM(x, S) RecGetGlobalRawStatSum(http_rsb, (int)x, &S)
+
+#define HTTP_ConfigReadInteger         REC_ConfigReadInteger
+#define HTTP_ConfigReadString          REC_ConfigReadString
+#define HTTP_RegisterConfigUpdateFunc  REC_RegisterConfigUpdateFunc
+
+/////////////////////////////////////////////////////////////
+//
+// struct HttpConfigPortRange
+//
+// configuration parameters for a range of valid SSL ports
+// if "low" == "high" a single port is part of this range
+// if "low" == "high" == -1 any port number is allowed
+//   (corresponds to a "*" in the config file)
+/////////////////////////////////////////////////////////////
+struct HttpConfigPortRange
+{
+  int low;
+  int high;
+  HttpConfigPortRange *next;
+
+  HttpConfigPortRange()
+    : low(0), high(0), next(0)
+  {  }
+
+  ~HttpConfigPortRange()
+  {
+    if (next)
+      delete next;
+  }
+};
+
+/////////////////////////////////////////////////////////////
+// This is a little helper class, used by the HttpConfigParams
+// and State (txn) structure. It allows for certain configs
+// to be overridable per transaction more easily.
+struct OverridableHttpConfigParams {
+  OverridableHttpConfigParams()
+    : maintain_pristine_host_hdr(1), chunking_enabled(1),
+      negative_caching_enabled(0), negative_revalidating_enabled(0), cache_when_to_revalidate(0),
+      keep_alive_enabled_in(1), keep_alive_enabled_out(1), keep_alive_post_out(0),
+      server_session_sharing_match(TS_SERVER_SESSION_SHARING_MATCH_BOTH),
+      server_session_sharing_pool(TS_SERVER_SESSION_SHARING_POOL_THREAD),
+      fwd_proxy_auth_to_parent(0), insert_age_in_response(1),
+      anonymize_remove_from(0), anonymize_remove_referer(0), anonymize_remove_user_agent(0),
+      anonymize_remove_cookie(0), anonymize_remove_client_ip(0), anonymize_insert_client_ip(1),
+      proxy_response_server_enabled(1), proxy_response_hsts_max_age(-1), proxy_response_hsts_include_subdomains(0),
+      insert_squid_x_forwarded_for(1), send_http11_requests(1),
+      cache_http(1), cache_cluster_cache_local(0), cache_ignore_client_no_cache(1), cache_ignore_client_cc_max_age(0),
+      cache_ims_on_client_no_cache(1), cache_ignore_server_no_cache(0), cache_responses_to_cookies(1),
+      cache_ignore_auth(0), cache_urls_that_look_dynamic(1), cache_required_headers(2),
+      cache_range_lookup(1), cache_range_write(0),
+      insert_request_via_string(1), insert_response_via_string(0), doc_in_cache_skip_dns(1),
+      flow_control_enabled(0), accept_encoding_filter_enabled(0), normalize_ae_gzip(0),
+      negative_caching_lifetime(1800), negative_revalidating_lifetime(1800),
+      sock_recv_buffer_size_out(0), sock_send_buffer_size_out(0), sock_option_flag_out(0),
+      sock_packet_mark_out(0), sock_packet_tos_out(0), server_tcp_init_cwnd(0),
+      request_hdr_max_size(131072), response_hdr_max_size(131072),
+      cache_heuristic_min_lifetime(3600), cache_heuristic_max_lifetime(86400),
+      cache_guaranteed_min_lifetime(0), cache_guaranteed_max_lifetime(31536000), cache_max_stale_age(604800),
+      keep_alive_no_activity_timeout_in(115), keep_alive_no_activity_timeout_out(120),
+      transaction_no_activity_timeout_in(30), transaction_no_activity_timeout_out(30),
+      transaction_active_timeout_out(0), origin_max_connections(0),
+      connect_attempts_max_retries(0), connect_attempts_max_retries_dead_server(3),
+      connect_attempts_rr_retries(3), connect_attempts_timeout(30),
+      post_connect_attempts_timeout(1800), down_server_timeout(300), client_abort_threshold(10),
+      freshness_fuzz_time(240), freshness_fuzz_min_time(0),
+      max_cache_open_read_retries(-1), cache_open_read_retry_time(10), background_fill_active_timeout(60),
+      http_chunking_size(4096), flow_high_water_mark(0), flow_low_water_mark(0),
+      default_buffer_size_index(8), default_buffer_water_mark(32768),
+
+      // Strings / floats must come last
+      proxy_response_server_string(NULL), proxy_response_server_string_len(0),
+      cache_heuristic_lm_factor(0.10), freshness_fuzz_prob(0.005),
+      background_fill_threshold(0.5)
+  { }
+
+  // A few rules here:
+  //   1. Place all MgmtByte configs before all other configs
+  //   1. all MgmtInt/Byte configs should come before string / float configs.
+
+  // The first three configs used to be @-parameters in remap.config
+  MgmtByte maintain_pristine_host_hdr;
+  MgmtByte chunking_enabled;
+
+  ////////////////////////////////
+  //  Negative Response Caching //
+  ////////////////////////////////
+  MgmtByte negative_caching_enabled;
+  MgmtByte negative_revalidating_enabled;
+
+  MgmtByte cache_when_to_revalidate;
+
+  MgmtByte keep_alive_enabled_in;
+  MgmtByte keep_alive_enabled_out;
+  MgmtByte keep_alive_post_out;  // share server sessions for post
+
+  MgmtByte server_session_sharing_match;
+  MgmtByte server_session_sharing_pool;
+  //  MgmtByte share_server_sessions;
+  MgmtByte fwd_proxy_auth_to_parent;
+
+  MgmtByte insert_age_in_response;
+
+  ///////////////////////////////////////////////////////////////////
+  // Privacy: fields which are removed from the user agent request //
+  ///////////////////////////////////////////////////////////////////
+  MgmtByte anonymize_remove_from;
+  MgmtByte anonymize_remove_referer;
+  MgmtByte anonymize_remove_user_agent;
+  MgmtByte anonymize_remove_cookie;
+  MgmtByte anonymize_remove_client_ip;
+  MgmtByte anonymize_insert_client_ip;
+
+  MgmtByte proxy_response_server_enabled;
+  MgmtInt proxy_response_hsts_max_age;
+  MgmtByte proxy_response_hsts_include_subdomains;
+
+  /////////////////////
+  // X-Forwarded-For //
+  /////////////////////
+  MgmtByte insert_squid_x_forwarded_for;
+
+  //////////////////////
+  //  Version Hell    //
+  //////////////////////
+  MgmtByte send_http11_requests;
+
+  ///////////////////
+  // cache control //
+  ///////////////////
+  MgmtByte cache_http;
+  MgmtByte cache_cluster_cache_local;
+  MgmtByte cache_ignore_client_no_cache;
+  MgmtByte cache_ignore_client_cc_max_age;
+  MgmtByte cache_ims_on_client_no_cache;
+  MgmtByte cache_ignore_server_no_cache;
+  MgmtByte cache_responses_to_cookies;
+  MgmtByte cache_ignore_auth;
+  MgmtByte cache_urls_that_look_dynamic;
+  MgmtByte cache_required_headers;
+  MgmtByte cache_range_lookup;
+  MgmtByte cache_range_write;
+
+  MgmtByte insert_request_via_string;
+  MgmtByte insert_response_via_string;
+
+  //////////////////////
+  //  DOC IN CACHE NO DNS//
+  //////////////////////
+  MgmtByte doc_in_cache_skip_dns;
+  MgmtByte flow_control_enabled;
+
+  ////////////////////////////////////////////////////////
+  // HTTP Accept-Encoding filtering based on User-Agent //
+  ////////////////////////////////////////////////////////
+  MgmtByte accept_encoding_filter_enabled;
+
+  ////////////////////////////////
+  // Optimize gzip alternates   //
+  ////////////////////////////////
+  MgmtByte normalize_ae_gzip;
+
+  ////////////////////////////////
+  //  Negative cache lifetimes  //
+  ////////////////////////////////
+  MgmtInt negative_caching_lifetime;
+  MgmtInt negative_revalidating_lifetime;
+
+  ///////////////////////////////////////
+  // origin server connection settings //
+  ///////////////////////////////////////
+  MgmtInt sock_recv_buffer_size_out;
+  MgmtInt sock_send_buffer_size_out;
+  MgmtInt sock_option_flag_out;
+  MgmtInt sock_packet_mark_out;
+  MgmtInt sock_packet_tos_out;
+
+  ///////////////////////////////
+  // Initial congestion window //
+  ///////////////////////////////
+  MgmtInt server_tcp_init_cwnd;
+
+  ///////////////
+  // Hdr Limit //
+  ///////////////
+  MgmtInt request_hdr_max_size;
+  MgmtInt response_hdr_max_size;
+
+  /////////////////////
+  // cache variables //
+  /////////////////////
+  MgmtInt cache_heuristic_min_lifetime;
+  MgmtInt cache_heuristic_max_lifetime;
+  MgmtInt cache_guaranteed_min_lifetime;
+  MgmtInt cache_guaranteed_max_lifetime;
+  MgmtInt cache_max_stale_age;
+
+  ///////////////////////////////////////////////////
+  // connection variables. timeouts are in seconds //
+  ///////////////////////////////////////////////////
+  MgmtInt keep_alive_no_activity_timeout_in;
+  MgmtInt keep_alive_no_activity_timeout_out;
+  MgmtInt transaction_no_activity_timeout_in;
+  MgmtInt transaction_no_activity_timeout_out;
+  MgmtInt transaction_active_timeout_out;
+  MgmtInt origin_max_connections;
+
+  ////////////////////////////////////
+  // origin server connect attempts //
+  ////////////////////////////////////
+  MgmtInt connect_attempts_max_retries;
+  MgmtInt connect_attempts_max_retries_dead_server;
+  MgmtInt connect_attempts_rr_retries;
+  MgmtInt connect_attempts_timeout;
+  MgmtInt post_connect_attempts_timeout;
+
+  MgmtInt down_server_timeout;
+  MgmtInt client_abort_threshold;
+
+  MgmtInt freshness_fuzz_time;
+  MgmtInt freshness_fuzz_min_time;
+
+  // open read failure retries.
+  MgmtInt max_cache_open_read_retries;
+  MgmtInt cache_open_read_retry_time;   // time is in mseconds
+
+  MgmtInt background_fill_active_timeout;
+
+  MgmtInt http_chunking_size; // Maximum chunk size for chunked output.
+  MgmtInt flow_high_water_mark; ///< Flow control high water mark.
+  MgmtInt flow_low_water_mark; ///< Flow control low water mark.
+
+  MgmtInt default_buffer_size_index;
+  MgmtInt default_buffer_water_mark;
+
+  // IMPORTANT: Here comes all strings / floats configs.
+
+  ///////////////////////////////////////////////////////////////////
+  // Server header                                                 //
+  ///////////////////////////////////////////////////////////////////
+  char *proxy_response_server_string; // This does not get free'd by us!
+  size_t proxy_response_server_string_len; // Updated when server_string is set.
+
+  MgmtFloat cache_heuristic_lm_factor;
+  MgmtFloat freshness_fuzz_prob;
+  MgmtFloat background_fill_threshold;
+};
+
+
+/////////////////////////////////////////////////////////////
+//
+// struct HttpConfigParams
+//
+// configuration parameters as they apear in the global
+// configuration file.
+/////////////////////////////////////////////////////////////
+struct HttpConfigParams:public ConfigInfo
+{
+public:
+  HttpConfigParams();
+  ~HttpConfigParams();
+
+  enum
+  {
+    CACHE_REQUIRED_HEADERS_NONE = 0,
+    CACHE_REQUIRED_HEADERS_AT_LEAST_LAST_MODIFIED = 1,
+    CACHE_REQUIRED_HEADERS_CACHE_CONTROL = 2
+  };
+
+  enum
+  {
+    SEND_HTTP11_NEVER = 0,
+    SEND_HTTP11_ALWAYS = 1,
+    SEND_HTTP11_UPGRADE_HOSTDB = 2,
+    SEND_HTTP11_IF_REQUEST_11_AND_HOSTDB = 3
+  };
+
+public:
+  char *proxy_hostname;
+  int proxy_hostname_len;
+
+  IpAddr inbound_ip4, inbound_ip6;
+  IpAddr outbound_ip4, outbound_ip6;
+
+  MgmtInt server_max_connections;
+  MgmtInt origin_min_keep_alive_connections; // TODO: This one really ought to be overridable, but difficult right now.
+  MgmtInt attach_server_session_to_client;
+
+  MgmtByte parent_proxy_routing_enable;
+  MgmtByte disable_ssl_parenting;
+
+  MgmtByte enable_url_expandomatic;
+  MgmtByte no_dns_forward_to_parent;
+  MgmtByte uncacheable_requests_bypass_parent;
+  MgmtByte no_origin_server_dns;
+  MgmtByte use_client_target_addr;
+  MgmtByte use_client_source_port;
+
+  char *proxy_request_via_string;
+  int proxy_request_via_string_len;
+  char *proxy_response_via_string;
+  int proxy_response_via_string_len;
+
+  ///////////////////////////////////
+  // URL expansions for DNS lookup //
+  ///////////////////////////////////
+  char *url_expansions_string;
+  char **url_expansions;
+  int num_url_expansions;
+
+  ///////////////////////////////////////////////////
+  // connection variables. timeouts are in seconds //
+  ///////////////////////////////////////////////////
+  MgmtByte session_auth_cache_keep_alive_enabled;
+  MgmtInt transaction_active_timeout_in;
+  MgmtInt accept_no_activity_timeout;
+
+  ////////////////////////////////////
+  // origin server connect attempts //
+  ////////////////////////////////////
+  MgmtInt parent_connect_attempts;
+  MgmtInt per_parent_connect_attempts;
+  MgmtInt parent_connect_timeout;
+
+  ///////////////////////////////////////////////////////////////////
+  // Privacy: fields which are removed from the user agent request //
+  ///////////////////////////////////////////////////////////////////
+  char *anonymize_other_header_list;
+
+  ///////////////////////////////////////////////////////////////////
+  // Global User Agent                                             //
+  ///////////////////////////////////////////////////////////////////
+  char *global_user_agent_header;
+  size_t global_user_agent_header_size;
+
+  MgmtByte enable_http_stats; // Can be "slow"
+
+  ///////////////////
+  // ICP variables //
+  ///////////////////
+  MgmtByte icp_enabled;
+  MgmtByte stale_icp_enabled;
+
+  char *cache_vary_default_text;
+  char *cache_vary_default_images;
+  char *cache_vary_default_other;
+
+  // open write failure retries.
+  MgmtInt max_cache_open_write_retries;
+
+  ///////////////////
+  // cache control //
+  ///////////////////
+  MgmtByte cache_enable_default_vary_headers;
+
+  ////////////////////////////////////////////
+  // CONNECT ports (used to be == ssl_ports //
+  ////////////////////////////////////////////
+  char *connect_ports_string;
+  HttpConfigPortRange *connect_ports;
+
+  //////////
+  // Push //
+  //////////
+  MgmtByte push_method_enabled;
+
+  ////////////////////////////
+  // HTTP Referer filtering //
+  ////////////////////////////
+  MgmtByte referer_filter_enabled;
+  MgmtByte referer_format_redirect;
+
+  ///////////////////
+  // reverse proxy //
+  ///////////////////
+  MgmtByte reverse_proxy_enabled;
+  MgmtByte url_remap_required;
+  char *reverse_proxy_no_host_redirect;
+  int reverse_proxy_no_host_redirect_len;
+
+  ///////////////////
+  // cop access    //
+  ///////////////////
+  MgmtByte record_cop_page;
+
+  ////////////////////////
+  // record tcp_mem_hit //
+  ////////////////////////
+  MgmtByte record_tcp_mem_hit;
+
+  /////////////////////
+  // Error Reporting //
+  /////////////////////
+  MgmtByte errors_log_error_pages;
+  MgmtInt slow_log_threshold;
+
+  MgmtByte enable_http_info;
+
+  // Cluster time delta is not a config variable,
+  //  rather it is the time skew which the manager observes
+  int32_t cluster_time_delta;
+
+  //##############################################################################
+  //#
+  //# Redirection
+  //#
+  //# 1. redirection_enabled: if set to 1, redirection is enabled.
+  //# 2. number_of_redirectionse: The maximum number of redirections YTS permits
+  //# 3. post_copy_size: The maximum POST data size YTS permits to copy
+  //#
+  //##############################################################################
+
+  MgmtByte redirection_enabled;
+  MgmtByte redirection_host_no_port;
+  MgmtInt number_of_redirections;
+  MgmtInt post_copy_size;
+
+  //////////////////////////////////////////////////////////////////
+  // Allow special handling of Accept* headers to be disabled to  //
+  // avoid unnecessary creation of alternates                     //
+  //////////////////////////////////////////////////////////////////
+  MgmtByte ignore_accept_mismatch;
+  MgmtByte ignore_accept_language_mismatch;
+  MgmtByte ignore_accept_encoding_mismatch;
+  MgmtByte ignore_accept_charset_mismatch;
+
+  MgmtByte send_100_continue_response;
+
+  OverridableHttpConfigParams oride;
+
+  ////////////////////
+  // Local Manager  //
+  ////////////////////
+  MgmtInt autoconf_port;
+  MgmtByte autoconf_localhost_only;
+
+
+private:
+  /////////////////////////////////////
+  // operator = and copy constructor //
+  /////////////////////////////////////
+    HttpConfigParams(const HttpConfigParams &);
+    HttpConfigParams & operator =(const HttpConfigParams &);
+};
+
+/////////////////////////////////////////////////////////////
+//
+// class HttpUserAgent_RegxEntry
+//
+// configuration entry for specific User-Agent
+// Created at startup time only and never changed
+// The main purpose of the User-Agent filtering is to find "bad" user agents
+// and modify Accept-Encoding to prevent compression for such "bad" guys
+/////////////////////////////////////////////////////////////
+
+class HttpUserAgent_RegxEntry
+{
+public:
+  typedef enum
+  {                             // for more details, please see comments in "ae_ua.config" file
+    STRTYPE_UNKNOWN = 0,
+    STRTYPE_SUBSTR_CASE,        /* .substring, .string */
+    STRTYPE_SUBSTR_NCASE,       /* .substring_ncase, .string_ncase */
+    STRTYPE_REGEXP              /* .regexp POSIX regular expression */
+  } StrType;
+
+  HttpUserAgent_RegxEntry *next;
+  int user_agent_str_size;
+  char *user_agent_str;
+  bool regx_valid;
+  StrType stype;
+  pcre* regx;
+
+    HttpUserAgent_RegxEntry();
+   ~HttpUserAgent_RegxEntry();
+
+  bool create(char *refexp_str = NULL, char *errmsgbuf = NULL, int errmsgbuf_size = 0);
+};
+
+/////////////////////////////////////////////////////////////
+//
+// class HttpConfig
+//
+/////////////////////////////////////////////////////////////
+class HttpConfig
+{
+public:
+
+  static int init_aeua_filter(char *config_fname);
+
+  static void startup();
+
+  static void reconfigure();
+
+  inkcoreapi static HttpConfigParams *acquire();
+  inkcoreapi static void release(HttpConfigParams * params);
+
+  // dump
+  static void dump_config();
+
+  // parse ssl ports configuration string
+  static HttpConfigPortRange *parse_ports_list(char *ports_str);
+
+  // parse DNS URL expansions string
+  static char **parse_url_expansions(char *url_expansions_str, int *num_expansions);
+
+  static void *cluster_delta_cb(void *opaque_token, char *data_raw, int data_len);
+
+public:
+  static int m_id;
+  static HttpConfigParams m_master;
+  static HttpUserAgent_RegxEntry *user_agent_list;
+};
+
+// DI's request to disable ICP on the fly
+extern volatile int32_t icp_dynamic_enabled;
+
+/////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////
+//
+//  inline functions
+//
+/////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////
+inline
+HttpConfigParams::HttpConfigParams()
+  : proxy_hostname(NULL),
+    proxy_hostname_len(0),
+    server_max_connections(0),
+    origin_min_keep_alive_connections(0),
+    parent_proxy_routing_enable(0),
+    disable_ssl_parenting(0),
+    enable_url_expandomatic(0),
+    no_dns_forward_to_parent(0),
+    uncacheable_requests_bypass_parent(1),
+    no_origin_server_dns(0),
+    use_client_target_addr(0),
+    use_client_source_port(0),
+    proxy_request_via_string(NULL),
+    proxy_request_via_string_len(0),
+    proxy_response_via_string(NULL),
+    proxy_response_via_string_len(0),
+    url_expansions_string(NULL),
+    url_expansions(NULL),
+    num_url_expansions(0),
+    session_auth_cache_keep_alive_enabled(1),
+    transaction_active_timeout_in(900),
+    accept_no_activity_timeout(120),
+    parent_connect_attempts(4),
+    per_parent_connect_attempts(2),
+    parent_connect_timeout(30),
+    anonymize_other_header_list(NULL),
+    global_user_agent_header(NULL),
+    global_user_agent_header_size(0),
+    enable_http_stats(1),
+    icp_enabled(0),
+    stale_icp_enabled(0),
+    cache_vary_default_text(NULL),
+    cache_vary_default_images(NULL),
+    cache_vary_default_other(NULL),
+    max_cache_open_write_retries(1),
+    cache_enable_default_vary_headers(0),
+    connect_ports_string(NULL),
+    connect_ports(NULL),
+    push_method_enabled(0),
+    referer_filter_enabled(0),
+    referer_format_redirect(0),
+    reverse_proxy_enabled(0),
+    url_remap_required(1),
+    record_cop_page(0),
+    record_tcp_mem_hit(0),
+    errors_log_error_pages(1),
+    enable_http_info(0),
+    cluster_time_delta(0),
+    redirection_enabled(0),
+    redirection_host_no_port(0),
+    number_of_redirections(1),
+    post_copy_size(2048),
+    ignore_accept_mismatch(0),
+    ignore_accept_language_mismatch(0),
+    ignore_accept_encoding_mismatch(0),
+    ignore_accept_charset_mismatch(0),
+    send_100_continue_response(0),
+    autoconf_port(0),
+    autoconf_localhost_only(0)
+{
+}
+
+inline
+HttpConfigParams::~HttpConfigParams()
+{
+  ats_free(proxy_hostname);
+  ats_free(proxy_request_via_string);
+  ats_free(proxy_response_via_string);
+  ats_free(url_expansions_string);
+  ats_free(anonymize_other_header_list);
+  ats_free(global_user_agent_header);
+  ats_free(oride.proxy_response_server_string);
+  ats_free(cache_vary_default_text);
+  ats_free(cache_vary_default_images);
+  ats_free(cache_vary_default_other);
+  ats_free(connect_ports_string);
+  ats_free(reverse_proxy_no_host_redirect);
+  ats_free(url_expansions);
+
+  if (connect_ports) {
+    delete connect_ports;
+  }
+}
+#endif /* #ifndef _HttpConfig_h_ */
diff --git a/proxy/http/HttpConnectionCount.cc b/proxy/http/HttpConnectionCount.cc
new file mode 100644
index 00000000..74f06b4b
--- /dev/null
+++ b/proxy/http/HttpConnectionCount.cc
@@ -0,0 +1,27 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HttpConnectionCount.h"
+
+
+ConnectionCount ConnectionCount::_connectionCount;
diff --git a/proxy/http/HttpConnectionCount.h b/proxy/http/HttpConnectionCount.h
new file mode 100644
index 00000000..70f3d1f3
--- /dev/null
+++ b/proxy/http/HttpConnectionCount.h
@@ -0,0 +1,96 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//
+#include "libts.h"
+#include "Map.h"
+
+#ifndef _HTTP_CONNECTION_COUNT_H_
+
+/**
+ * Singleton class to keep track of the number of connections per host
+ */
+class ConnectionCount
+{
+public:
+  /**
+   * Static method to get the instance of the class
+   * @return Returns a pointer to the instance of the class
+   */
+  static ConnectionCount *getInstance() {
+    return &_connectionCount;
+  }
+
+  /**
+   * Gets the number of connections for the host
+   * @param ip IP address of the host
+   * @return Number of connections
+   */
+  int getCount(const IpEndpoint& addr) {
+    ink_mutex_acquire(&_mutex);
+    int count = _hostCount.get(ConnAddr(addr));
+    ink_mutex_release(&_mutex);
+    return count;
+  }
+
+  /**
+   * Change (increment/decrement) the connection count
+   * @param ip IP address of the host
+   * @param delta Default is +1, can be set to negative to decrement
+   */
+  void incrementCount(const IpEndpoint& addr, const int delta = 1) {
+    ConnAddr caddr(addr);
+    ink_mutex_acquire(&_mutex);
+    int count = _hostCount.get(caddr);
+    _hostCount.put(caddr, count + delta);
+    ink_mutex_release(&_mutex);
+  }
+
+  struct ConnAddr {
+    IpEndpoint _addr;
+
+    ConnAddr() { ink_zero(_addr); }
+    ConnAddr(int x) { ink_release_assert(x == 0); ink_zero(_addr); }
+    ConnAddr(const IpEndpoint& addr) : _addr(addr) { }
+    operator bool() { return ats_is_ip(&_addr); }
+  };
+  
+  class ConnAddrHashFns {
+  public:
+      static uintptr_t hash(ConnAddr& addr) { return (uintptr_t) ats_ip_hash(&addr._addr.sa); }
+      static int equal(ConnAddr& a, ConnAddr& b) { return ats_ip_addr_eq(&a._addr, &b._addr); }
+  };
+
+private:
+  // Hide the constructor and copy constructor
+  ConnectionCount() {
+    ink_mutex_init(&_mutex, "ConnectionCountMutex");
+  }
+  ConnectionCount(const ConnectionCount & /* x ATS_UNUSED */) { }
+
+  static ConnectionCount _connectionCount;
+  HashMap<ConnAddr, ConnAddrHashFns, int> _hostCount;
+  ink_mutex _mutex;
+};
+
+#endif
diff --git a/proxy/http/HttpDebugNames.cc b/proxy/http/HttpDebugNames.cc
new file mode 100644
index 00000000..4e907cf7
--- /dev/null
+++ b/proxy/http/HttpDebugNames.cc
@@ -0,0 +1,486 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HttpDebugNames.h"
+#include "P_EventSystem.h"
+#include "StatPages.h"
+#include "HttpTunnel.h"
+#include "Transform.h"
+#include "ICPevents.h"
+#include "HttpSM.h"
+#include "HttpUpdateSM.h"
+
+//----------------------------------------------------------------------------
+const char *
+HttpDebugNames::get_server_state_name(HttpTransact::ServerState_t state)
+{
+  switch (state) {
+  case HttpTransact::STATE_UNDEFINED:
+    return "STATE_UNDEFINED";
+  case HttpTransact::ACTIVE_TIMEOUT:
+    return "ACTIVE_TIMEOUT";
+  case HttpTransact::BAD_INCOMING_RESPONSE:
+    return "BAD_INCOMING_RESPONSE";
+  case HttpTransact::CONNECTION_ALIVE:
+    return "CONNECTION_ALIVE";
+  case HttpTransact::CONNECTION_CLOSED:
+    return "CONNECTION_CLOSED";
+  case HttpTransact::CONNECTION_ERROR:
+    return "CONNECTION_ERROR";
+  case HttpTransact::INACTIVE_TIMEOUT:
+    return "INACTIVE_TIMEOUT";
+  case HttpTransact::OPEN_RAW_ERROR:
+    return "OPEN_RAW_ERROR";
+  case HttpTransact::PARSE_ERROR:
+    return "PARSE_ERROR";
+  case HttpTransact::TRANSACTION_COMPLETE:
+    return "TRANSACTION_COMPLETE";
+  case HttpTransact::CONGEST_CONTROL_CONGESTED_ON_F:
+    return "CONGEST_CONTROL_CONGESTED_ON_F";
+  case HttpTransact::CONGEST_CONTROL_CONGESTED_ON_M:
+    return "CONGEST_CONTROL_CONGESTED_ON_M";
+  }
+
+  return ("unknown state name");
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  HttpDebugNames::get_method_name()
+//
+//////////////////////////////////////////////////////////////////
+const char *
+HttpDebugNames::get_method_name(const char *method)
+{
+  if (method == HTTP_METHOD_CONNECT) {
+    return ("HTTP_METHOD_CONNECT");
+  } else if (method == HTTP_METHOD_DELETE) {
+    return ("HTTP_METHOD_DELETE");
+  } else if (method == HTTP_METHOD_GET) {
+    return ("HTTP_METHOD_GET");
+  } else if (method == HTTP_METHOD_HEAD) {
+    return ("HTTP_METHOD_HEAD");
+  } else if (method == HTTP_METHOD_OPTIONS) {
+    return ("HTTP_METHOD_OPTIONS");
+  } else if (method == HTTP_METHOD_POST) {
+    return ("HTTP_METHOD_POST");
+  } else if (method == HTTP_METHOD_PURGE) {
+    return ("HTTP_METHOD_PURGE");
+  } else if (method == HTTP_METHOD_PUT) {
+    return ("HTTP_METHOD_PUT");
+  } else if (method == HTTP_METHOD_TRACE) {
+    return ("HTTP_METHOD_TRACE");
+  } else {
+    return ("HTTP_METHOD_UNKNOWN");
+  }
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  HttpDebugNames::get_event_name()
+//
+//////////////////////////////////////////////////////////////////
+const char *
+HttpDebugNames::get_event_name(int event)
+{
+  switch (event) {
+    /////////////////////////
+    // VCONNECTION  EVENTS //
+    /////////////////////////
+  case VC_EVENT_NONE:
+    return ("VC_EVENT_NONE");
+  case VC_EVENT_IMMEDIATE:
+    return ("VC_EVENT_IMMEDIATE");
+  case VC_EVENT_READ_READY:
+    return ("VC_EVENT_READ_READY");
+  case VC_EVENT_WRITE_READY:
+    return ("VC_EVENT_WRITE_READY");
+  case VC_EVENT_READ_COMPLETE:
+    return ("VC_EVENT_READ_COMPLETE");
+  case VC_EVENT_WRITE_COMPLETE:
+    return ("VC_EVENT_WRITE_COMPLETE");
+  case VC_EVENT_EOS:
+    return ("VC_EVENT_EOS");
+  case VC_EVENT_ERROR:
+    return ("VC_EVENT_ERROR");
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    return ("VC_EVENT_INACTIVITY_TIMEOUT");
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    return ("VC_EVENT_ACTIVE_TIMEOUT");
+  case EVENT_INTERVAL:
+    return ("VC_EVENT_INTERVAL");
+
+
+    /////////////////
+    // NET  EVENTS //
+    /////////////////
+  case NET_EVENT_OPEN:
+    return ("NET_EVENT_OPEN");
+  case NET_EVENT_ACCEPT:
+    return ("NET_EVENT_ACCEPT");
+  case NET_EVENT_OPEN_FAILED:
+    return ("NET_EVENT_OPEN_FAILED");
+
+    ////////////////////
+    // HOSTDB  EVENTS //
+    ////////////////////
+  case EVENT_HOST_DB_LOOKUP:
+    return ("EVENT_HOST_DB_LOOKUP");
+
+  case EVENT_HOST_DB_GET_RESPONSE:
+    return ("EVENT_HOST_DB_GET_RESPONSE");
+
+    ////////////////////
+    // HOSTDB  EVENTS //
+    ////////////////////
+  case EVENT_SRV_LOOKUP:
+    return ("EVENT_SRV_LOOKUP");
+
+  case EVENT_SRV_IP_REMOVED:
+    return ("EVENT_SRV_IP_REMOVED");
+
+  case EVENT_SRV_GET_RESPONSE:
+    return ("EVENT_SRV_GET_RESPONSE");
+
+
+    ////////////////////
+    // DNS     EVENTS //
+    ////////////////////
+  case DNS_EVENT_LOOKUP:
+    return ("DNS_EVENT_LOOKUP");
+
+    ////////////////////
+    // CACHE   EVENTS //
+    ////////////////////
+
+  case CACHE_EVENT_LOOKUP:
+    return ("CACHE_EVENT_LOOKUP");
+  case CACHE_EVENT_LOOKUP_FAILED:
+    return ("CACHE_EVENT_LOOKUP_FAILED");
+  case CACHE_EVENT_OPEN_READ:
+    return ("CACHE_EVENT_OPEN_READ");
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    return ("CACHE_EVENT_OPEN_READ_FAILED");
+  case CACHE_EVENT_OPEN_WRITE:
+    return ("CACHE_EVENT_OPEN_WRITE");
+  case CACHE_EVENT_OPEN_WRITE_FAILED:
+    return ("CACHE_EVENT_OPEN_WRITE_FAILED");
+  case CACHE_EVENT_REMOVE:
+    return ("CACHE_EVENT_REMOVE");
+  case CACHE_EVENT_REMOVE_FAILED:
+    return ("CACHE_EVENT_REMOVE_FAILED");
+  case CACHE_EVENT_UPDATE:
+    return ("CACHE_EVENT_UPDATE");
+  case CACHE_EVENT_UPDATE_FAILED:
+    return ("CACHE_EVENT_UPDATE_FAILED");
+
+  case STAT_PAGE_SUCCESS:
+    return ("STAT_PAGE_SUCCESS");
+  case STAT_PAGE_FAILURE:
+    return ("STAT_PAGE_FAILURE");
+
+  case TRANSFORM_READ_READY:
+    return ("TRANSFORM_READ_READY");
+
+    /////////////////////////
+    //  HttpTunnel Events //
+    /////////////////////////
+  case HTTP_TUNNEL_EVENT_DONE:
+    return ("HTTP_TUNNEL_EVENT_DONE");
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+    return ("HTTP_TUNNEL_EVENT_PRECOMPLETE");
+  case HTTP_TUNNEL_EVENT_CONSUMER_DETACH:
+    return ("HTTP_TUNNEL_EVENT_CONSUMER_DETACH");
+
+    //////////////////////////
+    //  ICP Events
+    //////////////////////////
+  case ICP_LOOKUP_FOUND:
+    return ("ICP_LOOKUP_FOUND");
+  case ICP_LOOKUP_FAILED:
+    return ("ICP_LOOKUP_FAILED");
+
+    //////////////////////////////
+    //  CongestionControl Events
+    //////////////////////////////
+  case CONGESTION_EVENT_CONGESTED_ON_F:
+    return ("CONGESTION_EVENT_CONGESTED_ON_F");
+  case CONGESTION_EVENT_CONGESTED_ON_M:
+    return ("CONGESTION_EVENT_CONGESTED_ON_M");
+
+    //////////////////////////////
+    //  Plugin Events
+    //////////////////////////////
+  case HTTP_API_CONTINUE:
+    return ("HTTP_API_CONTINUE");
+  case HTTP_API_ERROR:
+    return ("HTTP_API_ERROR");
+
+    ///////////////////////////////
+    //  Scheduled Update Events
+    ///////////////////////////////
+  case HTTP_SCH_UPDATE_EVENT_WRITTEN:
+    return "HTTP_SCH_UPDATE_EVENT_WRITTEN";
+  case HTTP_SCH_UPDATE_EVENT_UPDATED:
+    return "HTTP_SCH_UPDATE_EVENT_UPDATED";
+  case HTTP_SCH_UPDATE_EVENT_DELETED:
+    return "HTTP_SCH_UPDATE_EVENT_DELETED";
+  case HTTP_SCH_UPDATE_EVENT_NOT_CACHED:
+    return "HTTP_SCH_UPDATE_EVENT_NOT_CACHED";
+  case HTTP_SCH_UPDATE_EVENT_ERROR:
+    return "HTTP_SCH_UPDATE_EVENT_ERROR";
+  case HTTP_SCH_UPDATE_EVENT_NO_ACTION:
+    return "HTTP_SCH_UPDATE_EVENT_NO_ACTION";
+
+  }
+
+  return ("unknown event");
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  HttpDebugNames::get_action_name()
+//
+//////////////////////////////////////////////////////////////////
+const char *
+HttpDebugNames::get_action_name(HttpTransact::StateMachineAction_t e)
+{
+  switch (e) {
+  case HttpTransact::SM_ACTION_UNDEFINED:
+    return ("SM_ACTION_UNDEFINED");
+
+  case HttpTransact::SM_ACTION_CACHE_ISSUE_WRITE:
+    return ("SM_ACTION_CACHE_ISSUE_WRITE");
+
+  case HttpTransact::SM_ACTION_CACHE_ISSUE_WRITE_TRANSFORM:
+    return ("SM_ACTION_CACHE_ISSUE_WRITE_TRANSFORM");
+
+  case HttpTransact::SM_ACTION_CACHE_LOOKUP:
+    return ("SM_ACTION_CACHE_LOOKUP");
+
+  case HttpTransact::SM_ACTION_DNS_LOOKUP:
+    return ("SM_ACTION_DNS_LOOKUP");
+
+  case HttpTransact::SM_ACTION_DNS_REVERSE_LOOKUP:
+    return ("SM_ACTION_DNS_REVERSE_LOOKUP");
+
+  case HttpTransact::SM_ACTION_ICP_QUERY:
+    return ("SM_ACTION_ICP_QUERY");
+
+  case HttpTransact::SM_ACTION_CACHE_PREPARE_UPDATE:
+    return ("SM_ACTION_CACHE_PREPARE_UPDATE");
+
+  case HttpTransact::SM_ACTION_CACHE_ISSUE_UPDATE:
+    return ("SM_ACTION_CACHE_ISSUE_UPDATE");
+
+  case HttpTransact::SM_ACTION_ORIGIN_SERVER_OPEN:
+    return ("SM_ACTION_ORIGIN_SERVER_OPEN");
+
+  case HttpTransact::SM_ACTION_ORIGIN_SERVER_RAW_OPEN:
+    return ("SM_ACTION_ORIGIN_SERVER_RAW_OPEN");
+
+  case HttpTransact::SM_ACTION_ORIGIN_SERVER_RR_MARK_DOWN:
+    return ("SM_ACTION_ORIGIN_SERVER_RR_MARK_DOWN");
+
+  case HttpTransact::SM_ACTION_READ_PUSH_HDR:
+    return ("SM_ACTION_READ_PUSH_HDR");
+
+  case HttpTransact::SM_ACTION_STORE_PUSH_BODY:
+    return ("SM_ACTION_STORE_PUSH_BODY");
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_WRITE:
+    return ("SM_ACTION_INTERNAL_CACHE_WRITE");
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_DELETE:
+    return ("SM_ACTION_INTERNAL_CACHE_DELETE");
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_NOOP:
+    return ("SM_ACTION_INTERNAL_CACHE_NOOP");
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS:
+    return ("SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS");
+
+  case HttpTransact::SM_ACTION_INTERNAL_REQUEST:
+    return ("SM_ACTION_INTERNAL_REQUEST");
+
+  case HttpTransact::SM_ACTION_SEND_ERROR_CACHE_NOOP:
+    return ("SM_ACTION_SEND_ERROR_CACHE_NOOP");
+
+  case HttpTransact::SM_ACTION_SERVE_FROM_CACHE:
+    return ("SM_ACTION_SERVE_FROM_CACHE");
+
+  case HttpTransact::SM_ACTION_SERVER_READ:
+    return ("SM_ACTION_SERVER_READ");
+
+  case HttpTransact::SM_ACTION_SSL_TUNNEL:
+    return ("SM_ACTION_SSL_TUNNEL");
+
+  case HttpTransact::SM_ACTION_CONTINUE:
+    return ("SM_ACTION_CONTINUE");
+
+  case HttpTransact::SM_ACTION_API_READ_REQUEST_HDR:
+    return ("SM_ACTION_API_READ_REQUEST_HDR");
+
+  case HttpTransact::SM_ACTION_API_OS_DNS:
+    return ("SM_ACTION_API_OS_DNS");
+
+  case HttpTransact::SM_ACTION_API_SEND_REQUEST_HDR:
+    return ("SM_ACTION_API_SEND_REQUEST_HDR");
+
+  case HttpTransact::SM_ACTION_API_READ_CACHE_HDR:
+    return ("SM_ACTION_API_READ_CACHE_HDR");
+
+  case HttpTransact::SM_ACTION_API_CACHE_LOOKUP_COMPLETE:
+    return ("SM_ACTION_API_CACHE_LOOKUP_COMPLETE");
+
+  case HttpTransact::SM_ACTION_API_READ_RESPONSE_HDR:
+    return ("SM_ACTION_API_READ_RESPONSE_HDR");
+
+  case HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR:
+    return ("SM_ACTION_API_SEND_RESPONSE_HDR");
+
+  case HttpTransact::SM_ACTION_INTERNAL_100_RESPONSE:
+    return ("SM_ACTION_INTERNAL_100_RESPONSE");
+
+  case HttpTransact::SM_ACTION_SERVER_PARSE_NEXT_HDR:
+    return ("SM_ACTION_SERVER_PARSE_NEXT_HDR");
+
+  case HttpTransact::SM_ACTION_TRANSFORM_READ:
+    return ("SM_ACTION_TRANSFORM_READ");
+
+#ifdef PROXY_DRAIN
+  case HttpTransact::SM_ACTION_DRAIN_REQUEST_BODY:
+    return ("SM_ACTION_DRAIN_REQUEST_BODY");
+#endif /* PROXY_DRAIN */
+
+  case HttpTransact::SM_ACTION_API_SM_START:
+    return ("SM_ACTION_API_SM_START");
+  case HttpTransact::SM_ACTION_REDIRECT_READ:
+    return ("SM_ACTION_REDIRECT_READ");
+  case HttpTransact::SM_ACTION_API_SM_SHUTDOWN:
+    return ("SM_ACTION_API_SM_SHUTDOWN");
+  case HttpTransact::SM_ACTION_REMAP_REQUEST:
+    return ("SM_ACTION_REMAP_REQUEST");
+  case HttpTransact::SM_ACTION_API_PRE_REMAP:
+    return ("SM_ACTION_API_PRE_REMAP");
+  case HttpTransact::SM_ACTION_API_POST_REMAP:
+    return ("SM_ACTION_API_POST_REMAP");
+  case HttpTransact::SM_ACTION_POST_REMAP_SKIP:
+    return ("SM_ACTION_POST_REMAP_SKIP");
+  }
+
+  return ("unknown state name");
+}
+
+//////////////////////////////////////////////////////////////////
+//
+//  HttpDebugNames::get_cache_action_name()
+//
+//////////////////////////////////////////////////////////////////
+const char *
+HttpDebugNames::get_cache_action_name(HttpTransact::CacheAction_t t)
+{
+  switch (t) {
+  case HttpTransact::CACHE_DO_UNDEFINED:
+    return ("CACHE_DO_UNDEFINED");
+  case HttpTransact::CACHE_DO_NO_ACTION:
+    return ("CACHE_DO_NO_ACTION");
+  case HttpTransact::CACHE_DO_DELETE:
+    return ("CACHE_DO_DELETE");
+  case HttpTransact::CACHE_DO_LOOKUP:
+    return ("CACHE_DO_LOOKUP");
+  case HttpTransact::CACHE_DO_REPLACE:
+    return ("CACHE_DO_REPLACE");
+  case HttpTransact::CACHE_DO_SERVE:
+    return ("CACHE_DO_SERVE");
+  case HttpTransact::CACHE_DO_SERVE_AND_DELETE:
+    return ("CACHE_DO_SERVE_AND_DELETE");
+  case HttpTransact::CACHE_DO_SERVE_AND_UPDATE:
+    return ("CACHE_DO_SERVE_AND_UPDATE");
+  case HttpTransact::CACHE_DO_UPDATE:
+    return ("CACHE_DO_UPDATE");
+  case HttpTransact::CACHE_DO_WRITE:
+    return ("CACHE_DO_WRITE");
+  case HttpTransact::CACHE_PREPARE_TO_DELETE:
+    return ("CACHE_PREPARE_TO_DELETE");
+  case HttpTransact::CACHE_PREPARE_TO_UPDATE:
+    return ("CACHE_PREPARE_TO_UPDATE");
+  case HttpTransact::CACHE_PREPARE_TO_WRITE:
+    return ("CACHE_PREPARE_TO_WRITE");
+  case HttpTransact::TOTAL_CACHE_ACTION_TYPES:
+    return ("TOTAL_CACHE_ACTION_TYPES");
+  }
+
+  return ("unknown cache action");
+}
+
+
+//////////////////////////////////////////////////////////////////
+//
+//  HttpDebugNames::get_api_hook_name()
+//
+//////////////////////////////////////////////////////////////////
+const char *
+HttpDebugNames::get_api_hook_name(TSHttpHookID t)
+{
+  switch (t) {
+  case TS_HTTP_READ_REQUEST_HDR_HOOK:
+    return "TS_HTTP_READ_REQUEST_HDR_HOOK";
+  case TS_HTTP_OS_DNS_HOOK:
+    return "TS_HTTP_OS_DNS_HOOK";
+  case TS_HTTP_SEND_REQUEST_HDR_HOOK:
+    return "TS_HTTP_SEND_REQUEST_HDR_HOOK";
+  case TS_HTTP_READ_CACHE_HDR_HOOK:
+    return "TS_HTTP_READ_CACHE_HDR_HOOK";
+  case TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK:
+    return "TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK";
+  case TS_HTTP_READ_RESPONSE_HDR_HOOK:
+    return "TS_HTTP_READ_RESPONSE_HDR_HOOK";
+  case TS_HTTP_SEND_RESPONSE_HDR_HOOK:
+    return "TS_HTTP_SEND_RESPONSE_HDR_HOOK";
+  case TS_HTTP_REQUEST_TRANSFORM_HOOK:
+    return "TS_HTTP_REQUEST_TRANSFORM_HOOK";
+  case TS_HTTP_RESPONSE_TRANSFORM_HOOK:
+    return "TS_HTTP_RESPONSE_TRANSFORM_HOOK";
+  case TS_HTTP_SELECT_ALT_HOOK:
+    return "TS_HTTP_SELECT_ALT_HOOK";
+  case TS_HTTP_TXN_START_HOOK:
+    return "TS_HTTP_TXN_START_HOOK";
+  case TS_HTTP_TXN_CLOSE_HOOK:
+    return "TS_HTTP_TXN_CLOSE_HOOK";
+  case TS_HTTP_SSN_START_HOOK:
+    return "TS_HTTP_SSN_START_HOOK";
+  case TS_HTTP_SSN_CLOSE_HOOK:
+    return "TS_HTTP_SSN_CLOSE_HOOK";
+  case TS_HTTP_PRE_REMAP_HOOK:
+    return "TS_HTTP_PRE_REMAP_HOOK";
+  case TS_HTTP_POST_REMAP_HOOK:
+    return "TS_HTTP_POST_REMAP_HOOK";
+  case TS_HTTP_RESPONSE_CLIENT_HOOK:
+    return "TS_HTTP_RESPONSE_CLIENT_HOOK";
+  case TS_HTTP_LAST_HOOK:
+    return "TS_HTTP_LAST_HOOK";
+  }
+
+  return "unknown hook";
+}
diff --git a/proxy/http/HttpDebugNames.h b/proxy/http/HttpDebugNames.h
new file mode 100644
index 00000000..5f56ee9f
--- /dev/null
+++ b/proxy/http/HttpDebugNames.h
@@ -0,0 +1,41 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_HttpDebugNames_h_)
+#define _HttpDebugNames_h_
+
+#include "HttpTransact.h"
+#include "api/ts/ts.h"
+
+class HttpDebugNames
+{
+public:
+  static const char *get_event_name(int event);
+  static const char *get_action_name(HttpTransact::StateMachineAction_t e);
+  static const char *get_method_name(const char *method);
+  static const char *get_cache_action_name(HttpTransact::CacheAction_t t);
+  static const char *get_api_hook_name(TSHttpHookID t);
+  static const char *get_server_state_name(HttpTransact::ServerState_t state);
+};
+
+#endif
diff --git a/proxy/http/HttpPages.cc b/proxy/http/HttpPages.cc
new file mode 100644
index 00000000..def76619
--- /dev/null
+++ b/proxy/http/HttpPages.cc
@@ -0,0 +1,480 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpPages.cc
+
+   Description:
+       Data structurs and stat page generators for http info
+
+
+ ****************************************************************************/
+#include "HttpPages.h"
+#include "HttpSM.h"
+#include "HttpDebugNames.h"
+
+HttpSMListBucket HttpSMList[HTTP_LIST_BUCKETS];
+
+HttpPagesHandler::HttpPagesHandler(Continuation * cont, HTTPHdr * header)
+  : BaseStatPagesHandler(new_ProxyMutex()),
+    request(NULL),
+    list_bucket(0),
+    state(HP_INIT),
+    sm_id(0)
+{
+  action = cont;
+
+  URL *url;
+  int length;
+
+  url = header->url_get();
+  request = (char *) url->path_get(&length);
+  request = arena.str_store(request, length);
+
+  if (strncmp(request, "sm_details", sizeof("sm_details")) == 0) {
+    arena.str_free(request);
+    request = (char *) url->query_get(&length);
+    request = arena.str_store(request, length);
+    SET_HANDLER(&HttpPagesHandler::handle_smdetails);
+
+  } else {
+    SET_HANDLER(&HttpPagesHandler::handle_smlist);
+  }
+}
+
+HttpPagesHandler::~HttpPagesHandler()
+{
+}
+
+int64_t
+HttpPagesHandler::extract_id(const char *query)
+{
+  char *p;
+  int64_t id;
+
+  p = (char *) strstr(query, "id=");
+  if (!p) {
+    return -1;
+  }
+  p += sizeof("id=") - 1;
+
+  id = ink_atoi64(p);
+
+  // Check to see if we found the id
+  if (id == 0) {
+    if (*p == '0' && *(p + 1) == '\0') {
+      return 0;
+    } else {
+      return -1;
+    }
+  } else {
+    return id;
+  }
+}
+
+void
+HttpPagesHandler::dump_hdr(HTTPHdr *hdr, const char *desc)
+{
+
+  if (hdr->valid()) {
+    resp_add("<h4> %s </h4>\n<pre>\n", desc);
+    char b[4096];
+    int used, tmp, offset;
+    int done;
+    offset = 0;
+    do {
+      used = 0;
+      tmp = offset;
+      done = hdr->print(b, 4095, &used, &tmp);
+      offset += used;
+      b[used] = '\0';
+      resp_add(b);
+    } while (!done);
+    resp_add("</pre>\n");
+  }
+}
+
+void
+HttpPagesHandler::dump_tunnel_info(HttpSM * sm)
+{
+  HttpTunnel *t = sm->get_tunnel();
+
+  resp_add("<h4> Tunneling Info </h4>");
+
+  resp_add("<p> Producers </p>");
+  resp_begin_table(1, 4, 60);
+  for (int i = 0; i < MAX_PRODUCERS; i++) {
+    if (t->producers[i].vc != NULL) {
+      resp_begin_row();
+
+      // Col 1 - name
+      resp_begin_column();
+      resp_add(t->producers[i].name);
+      resp_end_column();
+
+      // Col 2 - alive
+      resp_begin_column();
+      resp_add("%d", t->producers[i].alive);
+      resp_end_column();
+
+      // Col 3 - ndone
+      resp_begin_column();
+      if (t->producers[i].alive && t->producers[i].read_vio) {
+        resp_add("%d", t->producers[i].read_vio->ndone);
+      } else {
+        resp_add("%d", t->producers[i].bytes_read);
+      }
+      resp_end_column();
+
+      // Col 4 - nbytes
+      resp_begin_column();
+      if (t->producers[i].alive && t->producers[i].read_vio) {
+        resp_add("%d", t->producers[i].read_vio->nbytes);
+      } else {
+        resp_add("-");
+      }
+      resp_end_column();
+
+      resp_end_row();
+    }
+  }
+  resp_end_table();
+
+
+  resp_add("<p> Consumers </p>");
+  resp_begin_table(1, 5, 60);
+  for (int j = 0; j < MAX_CONSUMERS; j++) {
+    if (t->consumers[j].vc != NULL) {
+      resp_begin_row();
+
+      // Col 1 - name
+      resp_begin_column();
+      resp_add(t->consumers[j].name);
+      resp_end_column();
+
+      // Col 2 - alive
+      resp_begin_column();
+      resp_add("%d", t->consumers[j].alive);
+      resp_end_column();
+
+      // Col 3 - ndone
+      resp_begin_column();
+      if (t->consumers[j].alive && t->consumers[j].write_vio) {
+        resp_add("%d", t->consumers[j].write_vio->ndone);
+      } else {
+        resp_add("%d", t->consumers[j].bytes_written);
+      }
+      resp_end_column();
+
+      // Col 4 - nbytes
+      resp_begin_column();
+      if (t->consumers[j].alive && t->consumers[j].write_vio) {
+        resp_add("%d", t->consumers[j].write_vio->nbytes);
+      } else {
+        resp_add("-");
+      }
+      resp_end_column();
+
+      // Col 5 - read avail
+      resp_begin_column();
+      if (t->consumers[j].alive && t->consumers[j].buffer_reader) {
+        resp_add("%d", t->consumers[j].buffer_reader->read_avail());
+      } else {
+        resp_add("-");
+      }
+      resp_end_column();
+
+
+      resp_end_row();
+    }
+  }
+  resp_end_table();
+
+}
+
+void
+HttpPagesHandler::dump_history(HttpSM * sm)
+{
+  resp_add("<h4> History</h4>");
+  resp_begin_table(1, 3, 60);
+
+  int size;
+
+  // Figure out how big the history is and look
+  //  for wrap around
+  if (sm->history_pos > HISTORY_SIZE) {
+    size = HISTORY_SIZE;
+  } else {
+    size = sm->history_pos;
+  }
+
+  for (int i = 0; i < size; i++) {
+    resp_begin_row();
+
+    resp_begin_column();
+    resp_add("%s", sm->history[i].fileline);
+    resp_end_column();
+
+    resp_begin_column();
+    resp_add("%u", (unsigned int) sm->history[i].event);
+    resp_end_column();
+
+    resp_begin_column();
+    resp_add("%d", (int) sm->history[i].reentrancy);
+    resp_end_column();
+
+    resp_end_row();
+  }
+
+  resp_end_table();
+}
+
+int
+HttpPagesHandler::dump_sm(HttpSM * sm)
+{
+  // Dump the current state
+  const char *sm_state = HttpDebugNames::get_action_name(sm->t_state.next_action);
+
+  resp_begin_item();
+  resp_add("Current State: %s", sm_state);
+  resp_end_item();
+
+  dump_hdr(&sm->t_state.hdr_info.client_request, "Client Request");
+  dump_hdr(&sm->t_state.hdr_info.server_request, "Server Request");
+  dump_hdr(&sm->t_state.hdr_info.server_response, "Server Response");
+  dump_hdr(&sm->t_state.hdr_info.client_response, "Client Response");
+
+  dump_tunnel_info(sm);
+  dump_history(sm);
+
+  return EVENT_DONE;
+}
+
+int
+HttpPagesHandler::handle_smdetails(int event, void * /* data ATS_UNUSED */)
+{
+  EThread *ethread = this_ethread();
+  HttpSM *sm = NULL;
+
+  switch (event) {
+  case EVENT_NONE:
+  case EVENT_INTERVAL:
+  case EVENT_IMMEDIATE:
+    break;
+  default:
+    ink_assert(0);
+    break;
+  }
+
+  // Do initial setup if necessary
+  if (state == HP_INIT) {
+    state = HP_RUN;
+
+    // Get our SM id
+    sm_id = extract_id(request);
+
+    if (sm_id < 0) {
+      resp_begin("Http Pages Error");
+      resp_add("<b>Unable to extract id</b>\n");
+      resp_end();
+      return handle_callback(EVENT_NONE, NULL);
+
+    }
+
+    resp_begin("Http:SM Details");
+    resp_begin_item();
+    resp_add("Details for SM id  %" PRId64 "", sm_id);
+    resp_end_item();
+  }
+
+  for (; list_bucket < HTTP_LIST_BUCKETS; list_bucket++) {
+    MUTEX_TRY_LOCK(lock, HttpSMList[list_bucket].mutex, ethread);
+
+    if (!lock) {
+      eventProcessor.schedule_in(this, HTTP_LIST_RETRY, ET_CALL);
+      return EVENT_DONE;
+    }
+
+    sm = HttpSMList[list_bucket].sm_list.head;
+
+    while (sm != NULL) {
+      if (sm->sm_id == sm_id) {
+        // In this block we try to get the lock of the
+        //   state machine
+        {
+          MUTEX_TRY_LOCK(sm_lock, sm->mutex, ethread);
+          if (sm_lock) {
+            dump_sm(sm);
+            resp_end();
+            return handle_callback(EVENT_NONE, NULL);
+          } else {
+            // We missed the lock so retry
+            eventProcessor.schedule_in(this, HTTP_LIST_RETRY, ET_CALL);
+            return EVENT_DONE;
+          }
+        }
+      }
+
+      sm = sm->debug_link.next;
+    }
+  }
+
+
+  // If we got here, we did not find our state machine
+  resp_add("<h2>Id %" PRId64 " not found</h2>", sm_id);
+  resp_end();
+  return handle_callback(EVENT_NONE, NULL);
+}
+
+int
+HttpPagesHandler::handle_smlist(int event, void */* data ATS_UNUSED */)
+{
+  EThread *ethread = this_ethread();
+  HttpSM *sm;
+
+  switch (event) {
+  case EVENT_NONE:
+  case EVENT_INTERVAL:
+  case EVENT_IMMEDIATE:
+    break;
+  default:
+    ink_assert(0);
+    break;
+  }
+
+  if (state == HP_INIT) {
+    resp_begin("Http:SM List");
+    state = HP_RUN;
+  }
+
+  for (; list_bucket < HTTP_LIST_BUCKETS; list_bucket++) {
+    MUTEX_TRY_LOCK(lock, HttpSMList[list_bucket].mutex, ethread);
+
+    if (!lock) {
+      eventProcessor.schedule_in(this, HTTP_LIST_RETRY, ET_CALL);
+      return EVENT_DONE;
+    }
+
+    sm = HttpSMList[list_bucket].sm_list.head;
+
+    while (sm != NULL) {
+
+      char *url = NULL;
+      const char *method = NULL;
+      int method_len;
+      const char *sm_state = NULL;
+
+      // In this block we try to get the lock of the
+      //   state machine
+      {
+        MUTEX_TRY_LOCK(sm_lock, sm->mutex, ethread);
+        if (sm_lock) {
+          if (sm->t_state.hdr_info.client_request.valid()) {
+            sm_state = HttpDebugNames::get_action_name(sm->t_state.next_action);
+
+            method = sm->t_state.hdr_info.client_request.method_get(&method_len);
+            method = arena.str_store(method, method_len);
+            URL *u = sm->t_state.hdr_info.client_request.url_get();
+            if (u->valid()) {
+              url = u->string_get(&arena);
+            }
+          }
+
+          if (url == NULL) {
+            url = arena.str_store("-", 1);
+            sm_state = "READ_REQUEST";
+          }
+        } else {
+          url = arena.str_store("-", 1);
+          sm_state = "LOCKED";
+        }
+      }
+
+      resp_begin_item();
+      resp_add("id: <a href=\"./sm_details?id=%" PRId64 "\"> %" PRId64 " </a> | %s %s | %s\n",
+               sm->sm_id, sm->sm_id, method ? method : "", url, sm_state ? sm_state : "");
+      resp_end_item();
+      arena.str_free(url);
+
+      sm = sm->debug_link.next;
+    }
+  }
+
+  resp_end();
+  handle_callback(EVENT_NONE, NULL);
+
+  return EVENT_DONE;
+}
+
+int
+HttpPagesHandler::handle_callback(int /* event ATS_UNUSED */, void * /* edata ATS_UNUSED */)
+{
+  MUTEX_TRY_LOCK(trylock, action.mutex, this_ethread());
+  if (!trylock) {
+    SET_HANDLER(&HttpPagesHandler::handle_callback);
+    eventProcessor.schedule_in(this, HTTP_LIST_RETRY, ET_CALL);
+    return EVENT_DONE;
+  }
+
+  if (!action.cancelled) {
+    if (response) {
+      StatPageData data;
+
+      data.data = response;
+      data.type = ats_strdup("text/html");
+      data.length = response_length;
+      response = NULL;
+
+      action.continuation->handleEvent(STAT_PAGE_SUCCESS, &data);
+    } else {
+      action.continuation->handleEvent(STAT_PAGE_FAILURE, NULL);
+    }
+  }
+
+  delete this;
+  return EVENT_DONE;
+}
+
+static Action *
+http_pages_callback(Continuation * cont, HTTPHdr * header)
+{
+  HttpPagesHandler *handler;
+
+  handler = new HttpPagesHandler(cont, header);
+  eventProcessor.schedule_imm(handler, ET_CALL);
+
+  return &handler->action;
+}
+
+void
+http_pages_init()
+{
+  statPagesManager.register_http("http", http_pages_callback);
+
+  // Create the mutexes for http list protection
+  for (int i = 0; i < HTTP_LIST_BUCKETS; i++) {
+    HttpSMList[i].mutex = new_ProxyMutex();
+  }
+
+}
diff --git a/proxy/http/HttpPages.h b/proxy/http/HttpPages.h
new file mode 100644
index 00000000..6ee7ef5c
--- /dev/null
+++ b/proxy/http/HttpPages.h
@@ -0,0 +1,91 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpPages.h
+
+   Description:
+       Data structurs and stat page generators for http info
+
+
+ ****************************************************************************/
+
+#ifndef _HTTP_PAGES_H_
+#define _HTTP_PAGES_H_
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "DynArray.h"
+#include "HTTP.h"
+#include "StatPages.h"
+#include "HttpSM.h"
+
+class HttpSM;
+
+const int HTTP_LIST_BUCKETS = 63;
+const int HTTP_LIST_RETRY = HRTIME_MSECONDS(10);
+
+struct HttpSMListBucket
+{
+  Ptr<ProxyMutex> mutex;
+  DList(HttpSM, debug_link) sm_list;
+};
+
+extern HttpSMListBucket HttpSMList[];
+
+class HttpPagesHandler:public BaseStatPagesHandler
+{
+public:
+  HttpPagesHandler(Continuation * cont, HTTPHdr * header);
+  ~HttpPagesHandler();
+
+  int handle_smlist(int event, void *edata);
+  int handle_smdetails(int event, void *edata);
+  int handle_callback(int event, void *edata);
+  Action action;
+
+private:
+
+  int64_t extract_id(const char *query);
+  void dump_hdr(HTTPHdr *hdr, const char *desc);
+  void dump_tunnel_info(HttpSM * sm);
+  void dump_history(HttpSM * sm);
+  int dump_sm(HttpSM * sm);
+
+
+  Arena arena;
+  char *request;
+  int list_bucket;
+
+  enum HP_State_t
+  { HP_INIT, HP_RUN };
+  HP_State_t state;
+
+  // Info for SM details
+  int64_t sm_id;
+};
+
+void http_pages_init();
+
+#endif
diff --git a/proxy/http/HttpProxyAPIEnums.h b/proxy/http/HttpProxyAPIEnums.h
new file mode 100644
index 00000000..c230b015
--- /dev/null
+++ b/proxy/http/HttpProxyAPIEnums.h
@@ -0,0 +1,47 @@
+/** @file
+
+  Traffic Server SDK API - HTTP related enumerations
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section developers Developers
+
+  Developers, when adding a new element to an enum, append it. DO NOT
+  insert it.  Otherwise, binary compatibility of plugins will be broken!
+
+ */
+
+#ifndef _HTTP_PROXY_API_ENUMS_H_
+#define _HTTP_PROXY_API_ENUMS_H_
+
+/// Server session sharing values - match
+typedef enum {
+  TS_SERVER_SESSION_SHARING_MATCH_NONE,
+  TS_SERVER_SESSION_SHARING_MATCH_BOTH,
+  TS_SERVER_SESSION_SHARING_MATCH_IP,
+  TS_SERVER_SESSION_SHARING_MATCH_HOST
+} TSServerSessionSharingMatchType;
+
+/// Server session sharing values - pool
+typedef enum {
+  TS_SERVER_SESSION_SHARING_POOL_GLOBAL,
+  TS_SERVER_SESSION_SHARING_POOL_THREAD
+} TSServerSessionSharingPoolType;
+
+#endif // _HTTP_PROXY_API_ENUMS_H_
diff --git a/proxy/http/HttpProxyServerMain.cc b/proxy/http/HttpProxyServerMain.cc
new file mode 100644
index 00000000..9eb9291a
--- /dev/null
+++ b/proxy/http/HttpProxyServerMain.cc
@@ -0,0 +1,321 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "P_Net.h"
+#include "Main.h"
+#include "Error.h"
+#include "HttpConfig.h"
+#include "HttpSessionAccept.h"
+#include "ReverseProxy.h"
+#include "HttpSessionManager.h"
+#include "HttpUpdateSM.h"
+#include "HttpClientSession.h"
+#include "HttpPages.h"
+#include "HttpTunnel.h"
+#include "Tokenizer.h"
+#include "P_SSLNextProtocolAccept.h"
+#include "ProtocolProbeSessionAccept.h"
+#include "SpdySessionAccept.h"
+
+HttpSessionAccept *plugin_http_accept = NULL;
+HttpSessionAccept *plugin_http_transparent_accept = 0;
+
+static SLL<SSLNextProtocolAccept> ssl_plugin_acceptors;
+static ink_mutex ssl_plugin_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+bool
+ssl_register_protocol(const char * protocol, Continuation * contp)
+{
+  ink_scoped_mutex lock(ssl_plugin_mutex);
+
+  for (SSLNextProtocolAccept * ssl = ssl_plugin_acceptors.head;
+        ssl; ssl = ssl_plugin_acceptors.next(ssl)) {
+    if (!ssl->registerEndpoint(protocol, contp)) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool
+ssl_unregister_protocol(const char * protocol, Continuation * contp)
+{
+  ink_scoped_mutex lock(ssl_plugin_mutex);
+
+  for (SSLNextProtocolAccept * ssl = ssl_plugin_acceptors.head;
+        ssl; ssl = ssl_plugin_acceptors.next(ssl)) {
+    // Ignore possible failure because we want to try to unregister
+    // from all SSL ports.
+    ssl->unregisterEndpoint(protocol, contp);
+  }
+
+  return true;
+}
+
+/////////////////////////////////////////////////////////////////
+//
+//  main()
+//
+/////////////////////////////////////////////////////////////////
+
+/** Data about an acceptor.
+
+    This is used to separate setting up the proxy ports and
+    starting to accept on them.
+
+*/
+struct HttpProxyAcceptor {
+  /// Accept continuation.
+  Continuation* _accept;
+  /// Options for @c NetProcessor.
+  NetProcessor::AcceptOptions _net_opt;
+
+  /// Default constructor.
+  HttpProxyAcceptor()
+    : _accept(0)
+    {
+    }
+};
+
+/** Global acceptors.
+    
+    This is parallel to @c HttpProxyPort::global(), each generated
+    from the corresponding port descriptor.
+
+    @internal We use @c Continuation instead of @c HttpAccept because
+    @c SSLNextProtocolAccept is a subclass of @c Cont instead of @c
+    HttpAccept.
+*/
+Vec<HttpProxyAcceptor> HttpProxyAcceptors;
+
+// Called from InkAPI.cc
+NetProcessor::AcceptOptions
+make_net_accept_options(const HttpProxyPort& port, unsigned nthreads)
+{
+  NetProcessor::AcceptOptions net;
+
+  net.accept_threads = nthreads;
+
+  net.f_inbound_transparent = port.m_inbound_transparent_p;
+  net.ip_family = port.m_family;
+  net.local_port = port.m_port;
+
+  if (port.m_inbound_ip.isValid()) {
+    net.local_ip = port.m_inbound_ip;
+  } else if (AF_INET6 == port.m_family && HttpConfig::m_master.inbound_ip6.isIp6()) {
+    net.local_ip = HttpConfig::m_master.inbound_ip6;
+  } else if (AF_INET == port.m_family && HttpConfig::m_master.inbound_ip4.isIp4()) {
+    net.local_ip = HttpConfig::m_master.inbound_ip4;
+  }
+
+  return net;
+}
+
+static void
+MakeHttpProxyAcceptor(HttpProxyAcceptor& acceptor, HttpProxyPort& port, unsigned nthreads)
+{
+  NetProcessor::AcceptOptions& net_opt = acceptor._net_opt;
+  HttpSessionAccept::Options         accept_opt;
+
+  net_opt = make_net_accept_options(port, nthreads);
+  REC_ReadConfigInteger(net_opt.recv_bufsize, "proxy.config.net.sock_recv_buffer_size_in");
+  REC_ReadConfigInteger(net_opt.send_bufsize, "proxy.config.net.sock_send_buffer_size_in");
+  REC_ReadConfigInteger(net_opt.packet_mark, "proxy.config.net.sock_packet_mark_in");
+  REC_ReadConfigInteger(net_opt.packet_tos, "proxy.config.net.sock_packet_tos_in");
+
+  accept_opt.f_outbound_transparent = port.m_outbound_transparent_p;
+  accept_opt.transport_type = port.m_type;
+  accept_opt.setHostResPreference(port.m_host_res_preference);
+  accept_opt.setTransparentPassthrough(port.m_transparent_passthrough);
+  accept_opt.setSessionProtocolPreference(port.m_session_protocol_preference);
+
+  if (port.m_outbound_ip4.isValid()) {
+    accept_opt.outbound_ip4 = port.m_outbound_ip4;
+  } else if (HttpConfig::m_master.outbound_ip4.isValid()) {
+    accept_opt.outbound_ip4 = HttpConfig::m_master.outbound_ip4;
+  }
+
+  if (port.m_outbound_ip6.isValid()) {
+    accept_opt.outbound_ip6 = port.m_outbound_ip6;
+  } else if (HttpConfig::m_master.outbound_ip6.isValid()) {
+    accept_opt.outbound_ip6 = HttpConfig::m_master.outbound_ip6;
+  }
+
+  // OK the way this works is that the fallback for each port is a protocol
+  // probe acceptor. For SSL ports, we can stack a NPN+ALPN acceptor in front
+  // of that, and these ports will fall back to the probe if no NPN+ALPN endpoint
+  // was negotiated.
+
+  // XXX the protocol probe should be a configuration option.
+
+  ProtocolProbeSessionAccept *probe = new ProtocolProbeSessionAccept();
+  HttpSessionAccept *http = 0; // don't allocate this unless it will be used.
+
+  if (port.m_session_protocol_preference.intersects(HTTP_PROTOCOL_SET)) {
+    http = new HttpSessionAccept(accept_opt);
+    probe->registerEndpoint(ProtocolProbeSessionAccept::PROTO_HTTP, http);
+  }
+
+#if TS_HAS_SPDY
+  if (port.m_session_protocol_preference.intersects(SPDY_PROTOCOL_SET)) {
+    probe->registerEndpoint(ProtocolProbeSessionAccept::PROTO_SPDY, new SpdySessionAccept(spdy::SESSION_VERSION_3_1));
+  }
+#endif
+
+  if (port.isSSL()) {
+    SSLNextProtocolAccept *ssl = new SSLNextProtocolAccept(probe);
+
+    // ALPN selects the first server-offered protocol,
+    // so make sure that we offer the newest protocol first.
+    // But since registerEndpoint prepends you want to
+    // register them backwards, so you'd want to register
+    // the least important protocol first:
+    // http/1.0, http/1.1, spdy/3, spdy/3.1
+
+    // HTTP
+    if (port.m_session_protocol_preference.contains(TS_NPN_PROTOCOL_INDEX_HTTP_1_0)) {
+      ssl->registerEndpoint(TS_NPN_PROTOCOL_HTTP_1_0, http);
+    }
+
+    if (port.m_session_protocol_preference.contains(TS_NPN_PROTOCOL_INDEX_HTTP_1_1)) {
+      ssl->registerEndpoint(TS_NPN_PROTOCOL_HTTP_1_1, http);
+    }
+
+    // SPDY
+#if TS_HAS_SPDY
+    if (port.m_session_protocol_preference.contains(TS_NPN_PROTOCOL_INDEX_SPDY_3)) {
+      ssl->registerEndpoint(TS_NPN_PROTOCOL_SPDY_3, new SpdySessionAccept(spdy::SESSION_VERSION_3));
+    }
+
+    if (port.m_session_protocol_preference.contains(TS_NPN_PROTOCOL_INDEX_SPDY_3_1)) {
+      ssl->registerEndpoint(TS_NPN_PROTOCOL_SPDY_3_1, new SpdySessionAccept(spdy::SESSION_VERSION_3_1));
+    }
+#endif
+
+    ink_scoped_mutex lock(ssl_plugin_mutex);
+    ssl_plugin_acceptors.push(ssl);
+
+    acceptor._accept = ssl;
+  } else {
+    acceptor._accept = probe;
+  }
+}
+
+/** Set up all the accepts and sockets.
+ */
+void
+init_HttpProxyServer(int n_accept_threads)
+{
+  HttpProxyPort::Group& proxy_ports = HttpProxyPort::global();
+
+  init_reverse_proxy();
+  httpSessionManager.init();
+  http_pages_init();
+  ink_mutex_init(&debug_sm_list_mutex, "HttpSM Debug List");
+  ink_mutex_init(&debug_cs_list_mutex, "HttpCS Debug List");
+  // DI's request to disable/reenable ICP on the fly
+  icp_dynamic_enabled = 1;
+
+  // Used to give plugins the ability to create http requests
+  //   The equivalent of the connecting to localhost on the  proxy
+  //   port but without going through the operating system
+  //
+  if (plugin_http_accept == NULL) {
+    plugin_http_accept = new HttpSessionAccept;
+    plugin_http_accept->mutex = new_ProxyMutex();
+  }
+  // Same as plugin_http_accept except outbound transparent.
+  if (! plugin_http_transparent_accept) {
+    HttpSessionAccept::Options ha_opt;
+    ha_opt.setOutboundTransparent(true);
+    plugin_http_transparent_accept = new HttpSessionAccept(ha_opt);
+    plugin_http_transparent_accept->mutex = new_ProxyMutex();
+  }
+  ink_mutex_init(&ssl_plugin_mutex, "SSL Acceptor List");
+
+  // Do the configuration defined ports.
+  for ( int i = 0 , n = proxy_ports.length() ; i < n ; ++i ) {
+    MakeHttpProxyAcceptor(HttpProxyAcceptors.add(), proxy_ports[i], n_accept_threads);
+  }
+  
+}
+
+void
+start_HttpProxyServer()
+{
+  static bool called_once = false;
+  HttpProxyPort::Group& proxy_ports = HttpProxyPort::global();
+
+  ///////////////////////////////////
+  // start accepting connections   //
+  ///////////////////////////////////
+
+  ink_assert(!called_once);
+  ink_assert(proxy_ports.length() == HttpProxyAcceptors.length());
+
+  for ( int i = 0 , n = proxy_ports.length() ; i < n ; ++i ) {
+    HttpProxyAcceptor& acceptor = HttpProxyAcceptors[i];
+    HttpProxyPort& port = proxy_ports[i];
+    if (port.isSSL()) {
+      if (NULL == sslNetProcessor.main_accept(acceptor._accept, port.m_fd, acceptor._net_opt))
+        return;
+    } else if (! port.isPlugin()) {
+      if (NULL == netProcessor.main_accept(acceptor._accept, port.m_fd, acceptor._net_opt))
+        return;
+    }
+    // XXX although we make a good pretence here, I don't believe that NetProcessor::main_accept() ever actually returns
+    // NULL. It would be useful to be able to detect errors and spew them here though.
+  }
+
+#if TS_HAS_TESTS
+  if (is_action_tag_set("http_update_test")) {
+    init_http_update_test();
+  }
+#endif
+
+  // Alert plugins that connections will be accepted.
+  APIHook* hook = lifecycle_hooks->get(TS_LIFECYCLE_PORTS_READY_HOOK);
+  while (hook) {
+    hook->invoke(TS_EVENT_LIFECYCLE_PORTS_READY, NULL);
+    hook = hook->next();
+  }
+
+}
+
+void
+start_HttpProxyServerBackDoor(int port, int accept_threads)
+{
+  NetProcessor::AcceptOptions opt;
+  HttpSessionAccept::Options ha_opt;
+
+  opt.local_port = port;
+  opt.accept_threads = accept_threads;
+  opt.localhost_only = true;
+  ha_opt.backdoor = true;
+  opt.backdoor = true;
+
+  // The backdoor only binds the loopback interface
+  netProcessor.main_accept(new HttpSessionAccept(ha_opt), NO_FD, opt);
+}
diff --git a/proxy/http/HttpProxyServerMain.h b/proxy/http/HttpProxyServerMain.h
new file mode 100644
index 00000000..98769ff5
--- /dev/null
+++ b/proxy/http/HttpProxyServerMain.h
@@ -0,0 +1,37 @@
+/** @file
+
+  Main function to start the HTTP Proxy Server
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+struct HttpProxyPort;
+
+/** Initialize all HTTP proxy port data structures needed to run.
+ */
+void init_HttpProxyServer(int n_accept_threads = 0);
+
+/** Start the proxy server. 
+    The port data should have been created by @c init_HttpProxyServer().
+*/
+void start_HttpProxyServer();
+
+void start_HttpProxyServerBackDoor(int port, int accept_threads = 0);
+
+NetProcessor::AcceptOptions make_net_accept_options(const HttpProxyPort& port, unsigned nthreads);
diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
new file mode 100644
index 00000000..2302e5d8
--- /dev/null
+++ b/proxy/http/HttpSM.cc
@@ -0,0 +1,7619 @@
+/** @file
+
+  HTTP state machine
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+ */
+
+#include "HttpSM.h"
+#include "ProxyConfig.h"
+#include "HttpClientSession.h"
+#include "HttpServerSession.h"
+#include "HttpDebugNames.h"
+#include "HttpSessionManager.h"
+#include "P_Cache.h"
+#include "P_Net.h"
+#include "StatPages.h"
+#include "Log.h"
+#include "LogAccessHttp.h"
+#include "ICP.h"
+#include "PluginVC.h"
+#include "ReverseProxy.h"
+#include "RemapProcessor.h"
+#include "Transform.h"
+
+#include "HttpPages.h"
+
+//#include "I_Auth.h"
+//#include "HttpAuthParams.h"
+#include "congest/Congestion.h"
+
+#define DEFAULT_RESPONSE_BUFFER_SIZE_INDEX    6 // 8K
+#define DEFAULT_REQUEST_BUFFER_SIZE_INDEX    6  // 8K
+#define MIN_CONFIG_BUFFER_SIZE_INDEX          5 // 4K
+
+#define hsm_release_assert(EX) \
+{ \
+      if (!(EX)) \
+      { \
+         this->dump_state_on_assert(); \
+         _ink_assert(#EX, __FILE__, __LINE__); \
+      } \
+}
+
+/*
+ * Comment this off if you dont
+ * want httpSM to use new_empty_MIOBuffer(..) call
+ */
+
+#define USE_NEW_EMPTY_MIOBUFFER
+
+// We have a debugging list that can use to find stuck
+//  state machines
+DLL<HttpSM> debug_sm_list;
+ink_mutex debug_sm_list_mutex;
+
+//  _instantiate_func is called from the fast allocator to initialize
+//  newly-allocated HttpSM objects.  By default, the fast allocators
+//  just memcpys the entire prototype object, but this function does
+//  sparse initialization, not copying dead space for history.
+//
+//  Most of the content of in the prototype object consists of zeroes.
+//  To take advantage of that, a "scatter list" is constructed of
+//  the non-zero words, and those values are scattered onto the
+//  new object after first zeroing out the object (except for dead space).
+//
+//  make_scatter_list should be called only once (during static
+//  initialization, since it isn't thread safe).
+
+#define MAX_SCATTER_LEN  (sizeof(HttpSM)/sizeof(uint32_t) + 1)
+static uint32_t val[MAX_SCATTER_LEN];
+static uint16_t to[MAX_SCATTER_LEN];
+static int scat_count = 0;
+
+static const int sub_header_size = sizeof("Content-type: ") - 1 + 2 + sizeof("Content-range: bytes ") - 1 + 4;
+static const int boundary_size = 2 + sizeof("RANGE_SEPARATOR") - 1 + 2;
+
+static const char *str_100_continue_response = "HTTP/1.1 100 Continue\r\n\r\n";
+static const int len_100_continue_response = strlen(str_100_continue_response);
+
+/**
+ * Takes two milestones and returns the difference.
+ * @param start The start time
+ * @param end The end time
+ * @return A double that is the time in seconds
+ */
+static double
+milestone_difference(const ink_hrtime start, const ink_hrtime end)
+{
+  if (end == 0) {
+    return -1;
+  }
+  return (double) (end - start) / 1000000000;
+}
+
+static double
+milestone_difference_msec(const ink_hrtime start, const ink_hrtime end)
+{
+  if (end == 0) {
+    return -1;
+  }
+  return (double) (end - start) / 1000000;
+}
+
+void
+HttpSM::_make_scatter_list(HttpSM * prototype)
+{
+  int j;
+  int total_len = sizeof(HttpSM);
+
+  uint32_t *p = (uint32_t *) prototype;
+  int n = total_len / sizeof(uint32_t);
+  scat_count = 0;
+  for (j = 0; j < n; j++) {
+    if (p[j]) {
+      to[scat_count] = j;
+      val[scat_count] = p[j];
+      scat_count++;
+    }
+  }
+}
+
+void
+HttpSM::_instantiate_func(HttpSM * prototype, HttpSM * new_instance)
+{
+  int history_len = sizeof(prototype->history);
+  int total_len = sizeof(HttpSM);
+  int pre_history_len = (char *) (&(prototype->history)) - (char *) prototype;
+  int post_history_len = total_len - history_len - pre_history_len;
+  int post_offset = pre_history_len + history_len;
+  int j;
+
+  memset(((char *) new_instance), 0, pre_history_len);
+  memset(((char *) new_instance) + post_offset, 0, post_history_len);
+
+  uint32_t *pd = (uint32_t *) new_instance;
+
+  for (j = 0; j < scat_count; j++) {
+    pd[to[j]] = val[j];
+  }
+
+  ink_assert((memcmp((char *) new_instance, (char *) prototype, pre_history_len) == 0) &&
+             (memcmp(((char *) new_instance) + post_offset, ((char *) prototype) + post_offset, post_history_len) == 0));
+}
+
+SparseClassAllocator<HttpSM> httpSMAllocator("httpSMAllocator", 128, 16, HttpSM::_instantiate_func);
+
+#define HTTP_INCREMENT_TRANS_STAT(X) HttpTransact::update_stat(&t_state, X, 1);
+
+HttpVCTable::HttpVCTable()
+{
+  memset(&vc_table, 0, sizeof(vc_table));
+}
+
+HttpVCTableEntry *
+HttpVCTable::new_entry()
+{
+  for (int i = 0; i < vc_table_max_entries; i++) {
+    if (vc_table[i].vc == NULL) {
+      return vc_table + i;
+    }
+  }
+
+  ink_release_assert(0);
+  return NULL;
+}
+
+HttpVCTableEntry *
+HttpVCTable::find_entry(VConnection * vc)
+{
+  for (int i = 0; i < vc_table_max_entries; i++) {
+    if (vc_table[i].vc == vc) {
+      return vc_table + i;
+    }
+  }
+
+  return NULL;
+}
+
+HttpVCTableEntry *
+HttpVCTable::find_entry(VIO * vio)
+{
+  for (int i = 0; i < vc_table_max_entries; i++) {
+    if (vc_table[i].read_vio == vio || vc_table[i].write_vio == vio) {
+      ink_assert(vc_table[i].vc != NULL);
+      return vc_table + i;
+    }
+  }
+
+  return NULL;
+}
+
+// bool HttpVCTable::remove_entry(HttpVCEntry* e)
+//
+//    Deallocates all buffers from the associated
+//      entry and re-initializes it's other fields
+//      for reuse
+//
+void
+HttpVCTable::remove_entry(HttpVCTableEntry * e)
+{
+  ink_assert(e->vc == NULL || e->in_tunnel);
+  e->vc = NULL;
+  e->eos = false;
+  if (e->read_buffer) {
+    free_MIOBuffer(e->read_buffer);
+    e->read_buffer = NULL;
+  }
+  if (e->write_buffer) {
+    free_MIOBuffer(e->write_buffer);
+    e->write_buffer = NULL;
+  }
+  e->read_vio = NULL;
+  e->write_vio = NULL;
+  e->vc_handler = NULL;
+  e->vc_type = HTTP_UNKNOWN;
+  e->in_tunnel = false;
+}
+
+// bool HttpVCTable::cleanup_entry(HttpVCEntry* e)
+//
+//    Closes the associate vc for the entry,
+//     and the call remove_entry
+//
+void
+HttpVCTable::cleanup_entry(HttpVCTableEntry * e)
+{
+  ink_assert(e->vc);
+  if (e->in_tunnel == false) {
+    // Update stats
+    switch (e->vc_type) {
+    case HTTP_UA_VC:
+//              HTTP_DECREMENT_DYN_STAT(http_current_client_transactions_stat);
+      break;
+    default:
+      // This covers:
+      // HTTP_UNKNOWN, HTTP_SERVER_VC, HTTP_TRANSFORM_VC, HTTP_CACHE_READ_VC,
+      // HTTP_CACHE_WRITE_VC, HTTP_RAW_SERVER_VC
+      break;
+    }
+
+    e->vc->do_io_close();
+    e->vc = NULL;
+  }
+  remove_entry(e);
+}
+
+void
+HttpVCTable::cleanup_all()
+{
+  for (int i = 0; i < vc_table_max_entries; i++) {
+    if (vc_table[i].vc != NULL) {
+      cleanup_entry(vc_table + i);
+    }
+  }
+}
+
+#define REMEMBER_EVENT_FILTER(e) 1
+
+#define __REMEMBER(x)  #x
+#define _REMEMBER(x)   __REMEMBER(x)
+
+#define RECORD_FILE_LINE() \
+history[pos].fileline = __FILE__ ":" _REMEMBER (__LINE__);
+
+#define REMEMBER(e,r) \
+{ if (REMEMBER_EVENT_FILTER(e)) { \
+    add_history_entry(__FILE__ ":" _REMEMBER (__LINE__), e, r); }}
+
+#define DebugSM(tag, ...) DebugSpecific(debug_on, tag, __VA_ARGS__)
+
+#ifdef STATE_ENTER
+#undef STATE_ENTER
+#endif
+#define STATE_ENTER(state_name, event) { \
+    /*ink_assert (magic == HTTP_SM_MAGIC_ALIVE); */ REMEMBER (event, reentrancy_count);  \
+        DebugSM("http", "[%" PRId64 "] [%s, %s]", sm_id, \
+        #state_name, HttpDebugNames::get_event_name(event)); }
+
+#define HTTP_SM_SET_DEFAULT_HANDLER(_h) \
+{ \
+  REMEMBER(-1,reentrancy_count); \
+  default_handler = _h; }
+
+
+static int next_sm_id = 0;
+
+
+HttpSM::HttpSM()
+  : Continuation(NULL), sm_id(-1), magic(HTTP_SM_MAGIC_DEAD),
+    //YTS Team, yamsat Plugin
+    enable_redirection(false), redirect_url(NULL), redirect_url_len(0), redirection_tries(0),
+    transfered_bytes(0), post_failed(false), debug_on(false),
+    plugin_tunnel_type(HTTP_NO_PLUGIN_TUNNEL),
+    plugin_tunnel(NULL), reentrancy_count(0),
+    history_pos(0), tunnel(), ua_entry(NULL),
+    ua_session(NULL), background_fill(BACKGROUND_FILL_NONE),
+    ua_raw_buffer_reader(NULL),
+    server_entry(NULL), server_session(NULL), shared_session_retries(0),
+    server_buffer_reader(NULL),
+    transform_info(), post_transform_info(), has_active_plugin_agents(false),
+    second_cache_sm(NULL),
+    default_handler(NULL), pending_action(NULL), historical_action(NULL),
+    last_action(HttpTransact::SM_ACTION_UNDEFINED),
+    // TODO:  Now that bodies can be empty, should the body counters be set to -1 ? TS-2213
+    client_request_hdr_bytes(0), client_request_body_bytes(0),
+    server_request_hdr_bytes(0), server_request_body_bytes(0),
+    server_response_hdr_bytes(0), server_response_body_bytes(0),
+    client_response_hdr_bytes(0), client_response_body_bytes(0),
+    cache_response_hdr_bytes(0), cache_response_body_bytes(0),
+    pushed_response_hdr_bytes(0), pushed_response_body_bytes(0),
+    plugin_tag(0), plugin_id(0),
+    hooks_set(0), cur_hook_id(TS_HTTP_LAST_HOOK), cur_hook(NULL),
+    cur_hooks(0), callout_state(HTTP_API_NO_CALLOUT), terminate_sm(false), kill_this_async_done(false)
+{
+  static int scatter_init = 0;
+
+  memset(&history, 0, sizeof(history));
+  memset(&vc_table, 0, sizeof(vc_table));
+  memset(&http_parser, 0, sizeof(http_parser));
+
+  if (!scatter_init) {
+    _make_scatter_list(this);
+    scatter_init = 1;
+  }
+}
+
+void
+HttpSM::cleanup()
+{
+  t_state.destroy();
+  api_hooks.clear();
+  http_parser_clear(&http_parser);
+
+  // t_state.content_control.cleanup();
+
+  HttpConfig::release(t_state.http_config_param);
+
+  mutex.clear();
+  tunnel.mutex.clear();
+  cache_sm.mutex.clear();
+  transform_cache_sm.mutex.clear();
+  if (second_cache_sm) {
+    second_cache_sm->mutex.clear();
+    delete second_cache_sm;
+  }
+  magic = HTTP_SM_MAGIC_DEAD;
+  debug_on = false;
+}
+
+void
+HttpSM::destroy()
+{
+  cleanup();
+  httpSMAllocator.free(this);
+}
+
+void
+HttpSM::init()
+{
+  milestones.sm_start = ink_get_hrtime();
+
+  magic = HTTP_SM_MAGIC_ALIVE;
+  sm_id = 0;
+
+  // Unique state machine identifier.
+  //  changed next_sm_id from int64_t to int because
+  //  atomic(32) is faster than atomic64.  The id is just
+  //  for debugging, so it's OK if it wraps every few days,
+  //  as long as the http_info bucket hash still works.
+  //  (To test this, initialize next_sm_id to 0x7ffffff0)
+  //  Leaving sm_id as int64_t to minimize code changes.
+
+  sm_id = (int64_t) ink_atomic_increment((&next_sm_id), 1);
+  t_state.state_machine_id = sm_id;
+  t_state.state_machine = this;
+
+  t_state.http_config_param = HttpConfig::acquire();
+
+  // Simply point to the global config for the time being, no need to copy this
+  // entire struct if nothing is going to change it.
+  t_state.txn_conf = &t_state.http_config_param->oride;
+
+  // update the cache info config structure so that
+  // selection from alternates happens correctly.
+  t_state.cache_info.config.cache_global_user_agent_header = t_state.http_config_param->global_user_agent_header ? true : false;
+  t_state.cache_info.config.ignore_accept_mismatch = t_state.http_config_param->ignore_accept_mismatch;
+  t_state.cache_info.config.ignore_accept_language_mismatch = t_state.http_config_param->ignore_accept_language_mismatch ;
+  t_state.cache_info.config.ignore_accept_encoding_mismatch = t_state.http_config_param->ignore_accept_encoding_mismatch;
+  t_state.cache_info.config.ignore_accept_charset_mismatch = t_state.http_config_param->ignore_accept_charset_mismatch;
+  t_state.cache_info.config.cache_enable_default_vary_headers = t_state.http_config_param->cache_enable_default_vary_headers ? true : false;
+
+  t_state.cache_info.config.cache_vary_default_text = t_state.http_config_param->cache_vary_default_text;
+  t_state.cache_info.config.cache_vary_default_images = t_state.http_config_param->cache_vary_default_images;
+  t_state.cache_info.config.cache_vary_default_other = t_state.http_config_param->cache_vary_default_other;
+
+  t_state.init();
+  t_state.srv_lookup = hostdb_srv_enabled;
+
+  // Added to skip dns if the document is in cache. DNS will be forced if there is a ip based ACL in
+  // cache control or parent.config or if the doc_in_cache_skip_dns is disabled or if http caching is disabled
+  // TODO: This probably doesn't honor this as a per-transaction overridable config.
+  t_state.force_dns = (ip_rule_in_CacheControlTable() || t_state.parent_params->ParentTable->ipMatch ||
+                       !(t_state.txn_conf->doc_in_cache_skip_dns) || !(t_state.txn_conf->cache_http));
+
+  http_parser_init(&http_parser);
+
+  SET_HANDLER(&HttpSM::main_handler);
+
+#ifdef USE_HTTP_DEBUG_LISTS
+  ink_mutex_acquire(&debug_sm_list_mutex);
+  debug_sm_list.push(this, this->debug_link);
+  ink_mutex_release(&debug_sm_list_mutex);
+#endif
+
+}
+
+void
+HttpSM::set_ua_half_close_flag()
+{
+  ua_session->set_half_close_flag();
+}
+
+inline void
+HttpSM::do_api_callout()
+{
+  if (hooks_set) {
+    do_api_callout_internal();
+  } else {
+    handle_api_return();
+  }
+}
+
+int
+HttpSM::state_add_to_list(int event, void * /* data ATS_UNUSED */)
+{
+  // The list if for stat pages and general debugging
+  //   The config variable exists mostly to allow us to
+  //   measure an performance drop during benchmark runs
+  if (t_state.http_config_param->enable_http_info) {
+    STATE_ENTER(&HttpSM::state_add_to_list, event);
+    ink_assert(event == EVENT_NONE || event == EVENT_INTERVAL);
+
+    int bucket = ((unsigned int) sm_id % HTTP_LIST_BUCKETS);
+
+    MUTEX_TRY_LOCK(lock, HttpSMList[bucket].mutex, mutex->thread_holding);
+    // the client_vc`s timeout events can be triggered, so we should not
+    // reschedule the http_sm when the lock is not acquired.
+    // FIXME: the sm_list may miss some http_sms when the lock contention
+    if (lock)
+      HttpSMList[bucket].sm_list.push(this);
+  }
+
+  t_state.api_next_action = HttpTransact::SM_ACTION_API_SM_START;
+  do_api_callout();
+  return EVENT_DONE;
+}
+
+int
+HttpSM::state_remove_from_list(int event, void * /* data ATS_UNUSED */)
+{
+  // The config parameters are guaranteed not change
+  //   across the life of a transaction so it safe to
+  //   check the config here and use it detrmine
+  //   whether we need to strip ourselves off of the
+  //   state page list
+  if (t_state.http_config_param->enable_http_info) {
+    STATE_ENTER(&HttpSM::state_remove_from_list, event);
+    ink_assert(event == EVENT_NONE || event == EVENT_INTERVAL);
+
+    int bucket = ((unsigned int) sm_id % HTTP_LIST_BUCKETS);
+
+    MUTEX_TRY_LOCK(lock, HttpSMList[bucket].mutex, mutex->thread_holding);
+    if (!lock) {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_remove_from_list);
+      mutex->thread_holding->schedule_in(this, HTTP_LIST_RETRY);
+      return EVENT_DONE;
+    }
+
+    HttpSMList[bucket].sm_list.remove(this);
+  }
+
+  return this->kill_this_async_hook(EVENT_NONE, NULL);
+}
+
+int
+HttpSM::kill_this_async_hook(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  // In the base HttpSM, we don't have anything to
+  //   do here.  subclasses can override this function
+  //   to do their own asynchronous cleanup
+  // So We're now ready to finish off the state machine
+  terminate_sm = true;
+  kill_this_async_done = true;
+
+  return EVENT_DONE;
+}
+
+
+void
+HttpSM::start_sub_sm()
+{
+  tunnel.init(this, mutex);
+  cache_sm.init(this, mutex);
+  transform_cache_sm.init(this, mutex);
+}
+
+void
+HttpSM::attach_client_session(HttpClientSession * client_vc, IOBufferReader * buffer_reader)
+{
+  milestones.ua_begin = ink_get_hrtime();
+  ink_assert(client_vc != NULL);
+
+  ua_session = client_vc;
+  mutex = client_vc->mutex;
+  if (ua_session->debug_on) debug_on = true;
+
+  start_sub_sm();
+
+  // Allocate a user agent entry in the state machine's
+  //   vc table
+  ua_entry = vc_table.new_entry();
+  ua_entry->vc = client_vc;
+  ua_entry->vc_type = HTTP_UA_VC;
+
+  NetVConnection* netvc = client_vc->get_netvc();
+
+  ats_ip_copy(&t_state.client_info.addr, netvc->get_remote_addr());
+  t_state.client_info.port = netvc->get_local_port();
+  t_state.client_info.is_transparent = netvc->get_is_transparent();
+  t_state.backdoor_request = client_vc->backdoor_connect;
+  t_state.client_info.port_attribute = static_cast<HttpProxyPort::TransportType>(netvc->attributes);
+
+  HTTP_INCREMENT_DYN_STAT(http_current_client_transactions_stat);
+
+  // Record api hook set state
+  hooks_set = http_global_hooks->has_hooks() || client_vc->hooks_set;
+
+  // Setup for parsing the header
+  ua_buffer_reader = buffer_reader;
+  ua_entry->vc_handler = &HttpSM::state_read_client_request_header;
+  t_state.hdr_info.client_request.destroy();
+  t_state.hdr_info.client_request.create(HTTP_TYPE_REQUEST);
+  http_parser_init(&http_parser);
+
+  // Prepare raw reader which will live until we are sure this is HTTP indeed
+  if (is_transparent_passthrough_allowed()) {
+      ua_raw_buffer_reader = buffer_reader->clone();
+  }
+
+  // We first need to run the transaction start hook.  Since
+  //  this hook maybe asynchronous, we need to disable IO on
+  //  client but set the continuation to be the state machine
+  //  so if we get an timeout events the sm handles them
+  ua_entry->read_vio = client_vc->do_io_read(this, 0, buffer_reader->mbuf);
+
+  /////////////////////////
+  // set up timeouts     //
+  /////////////////////////
+  client_vc->get_netvc()->set_inactivity_timeout(HRTIME_SECONDS(HttpConfig::m_master.accept_no_activity_timeout));
+  client_vc->get_netvc()->set_active_timeout(HRTIME_SECONDS(HttpConfig::m_master.transaction_active_timeout_in));
+
+  ++reentrancy_count;
+  // Add our state sm to the sm list
+  state_add_to_list(EVENT_NONE, NULL);
+  // This is another external entry point and it is possible for the state machine to get terminated
+  // while down the call chain from @c state_add_to_list. So we need to use the reentrancy_count to
+  // prevent cleanup there and do it here as we return to the external caller.
+  if (terminate_sm == true && reentrancy_count == 1) {
+    kill_this();
+  } else {
+    --reentrancy_count;
+    ink_assert(reentrancy_count >= 0);
+  }
+}
+
+
+void
+HttpSM::setup_client_read_request_header()
+{
+  ink_assert(ua_entry->vc_handler == &HttpSM::state_read_client_request_header);
+
+  ua_entry->read_vio = ua_session->do_io_read(this, INT64_MAX, ua_buffer_reader->mbuf);
+  // The header may already be in the buffer if this
+  //  a request from a keep-alive connection
+  if (ua_buffer_reader->read_avail() > 0)
+    handleEvent(VC_EVENT_READ_READY, ua_entry->read_vio);
+}
+
+void
+HttpSM::setup_blind_tunnel_port()
+{
+  // We gotten a connect on a port for blind tunneling so
+  //  call transact figure out where it is going
+  call_transact_and_set_next_state(HttpTransact::HandleBlindTunnel);
+}
+
+int
+HttpSM::state_read_client_request_header(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_read_client_request_header, event);
+
+  ink_assert(ua_entry->read_vio == (VIO *) data);
+  ink_assert(server_entry == NULL);
+  ink_assert(server_session == NULL);
+
+  int bytes_used = 0;
+  ink_assert(ua_entry->eos == false);
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+    // More data to parse
+    break;
+
+  case VC_EVENT_EOS:
+    ua_entry->eos = true;
+    if (client_request_hdr_bytes !=0)
+      break;
+    // Fall through
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    // The user agent is hosed.  Close it &
+    //   bail on the state machine
+    vc_table.cleanup_entry(ua_entry);
+    ua_entry = NULL;
+    t_state.client_info.abort = HttpTransact::ABORTED;
+    terminate_sm = true;
+    return 0;
+  }
+
+  // Reset the inactivity timeout if this is the first
+  //   time we've been called.  The timeout had been set to
+  //   the accept timeout by the HttpClientSession
+  //
+  if (client_request_hdr_bytes == 0) {
+    ua_session->get_netvc()->set_inactivity_timeout(HRTIME_SECONDS(t_state.txn_conf->transaction_no_activity_timeout_in));
+  }
+  /////////////////////
+  // tokenize header //
+  /////////////////////
+
+  MIMEParseResult state = t_state.hdr_info.client_request.parse_req(&http_parser,
+                                                        ua_buffer_reader,
+                                                        &bytes_used,
+                                                        ua_entry->eos);
+
+  client_request_hdr_bytes += bytes_used;
+
+  // Check to see if we are over the hdr size limit
+  if (client_request_hdr_bytes > t_state.txn_conf->request_hdr_max_size) {
+    DebugSM("http", "client header bytes were over max header size; treating as a bad request");
+    state = PARSE_ERROR;
+  }
+
+  if (event == VC_EVENT_READ_READY &&
+      state == PARSE_ERROR &&
+      is_transparent_passthrough_allowed() &&
+      ua_raw_buffer_reader != NULL) {
+
+      DebugSM("http", "[%" PRId64 "] first request on connection failed parsing, switching to passthrough.", sm_id);
+
+      t_state.transparent_passthrough = true;
+      http_parser_clear(&http_parser);
+
+      /* establish blind tunnel */
+      setup_blind_tunnel_port();
+      return 0;
+  }
+
+  // Check to see if we are done parsing the header
+  if (state != PARSE_CONT || ua_entry->eos ||
+	(state == PARSE_CONT && event == VC_EVENT_READ_COMPLETE)) {
+    if (ua_raw_buffer_reader != NULL) {
+        ua_raw_buffer_reader->dealloc();
+        ua_raw_buffer_reader = NULL;
+    }
+    http_parser_clear(&http_parser);
+    ua_entry->vc_handler = &HttpSM::state_watch_for_client_abort;
+    milestones.ua_read_header_done = ink_get_hrtime();
+  }
+
+  switch (state) {
+  case PARSE_ERROR:
+    DebugSM("http", "[%" PRId64 "] error parsing client request header", sm_id);
+
+    // Disable further I/O on the client
+    ua_entry->read_vio->nbytes = ua_entry->read_vio->ndone;
+
+    call_transact_and_set_next_state(HttpTransact::BadRequest);
+    break;
+
+  case PARSE_CONT:
+    if (ua_entry->eos) {
+      DebugSM("http_seq", "[%" PRId64 "] EOS before client request parsing finished", sm_id);
+      set_ua_abort(HttpTransact::ABORTED, event);
+
+      // Disable further I/O on the client
+      ua_entry->read_vio->nbytes = ua_entry->read_vio->ndone;
+
+      call_transact_and_set_next_state(HttpTransact::BadRequest);
+      break;
+    } else if (event == VC_EVENT_READ_COMPLETE) {
+	DebugSM("http_parse", "[%" PRId64 "] VC_EVENT_READ_COMPLETE and PARSE CONT state", sm_id);
+	break;
+    } else {
+      if (is_transparent_passthrough_allowed() &&
+          ua_raw_buffer_reader != NULL &&
+          ua_raw_buffer_reader->get_current_block()->write_avail() <= 0) {
+        //Disable passthrough regardless of eventual parsing failure or success -- otherwise
+        //we either have to consume some data or risk blocking the writer.
+        ua_raw_buffer_reader->dealloc();
+        ua_raw_buffer_reader = NULL;
+      }
+      ua_entry->read_vio->reenable();
+      return VC_EVENT_CONT;
+    }
+  case PARSE_DONE:
+    DebugSM("http", "[%" PRId64 "] done parsing client request header", sm_id);
+
+    if (ua_session->m_active == false) {
+      ua_session->m_active = true;
+      HTTP_INCREMENT_DYN_STAT(http_current_active_client_connections_stat);
+    }
+    if (t_state.hdr_info.client_request.method_get_wksidx() == HTTP_WKSIDX_TRACE ||
+         (t_state.hdr_info.request_content_length == 0 &&
+          t_state.client_info.transfer_encoding != HttpTransact::CHUNKED_ENCODING)) {
+
+      // Enable further IO to watch for client aborts
+      ua_entry->read_vio->reenable();
+    } else {
+      // Disable further I/O on the client since there could
+      //  be body that we are tunneling POST/PUT/CONNECT or
+      //  extension methods and we can't issue another
+      //  another IO later for the body with a different buffer
+      ua_entry->read_vio->nbytes = ua_entry->read_vio->ndone;
+    }
+    //YTS Team, yamsat Plugin
+    //Setting enable_redirection according to HttpConfig master
+    if ((HttpConfig::m_master.number_of_redirections > 0) ||
+        (t_state.method == HTTP_WKSIDX_POST && HttpConfig::m_master.post_copy_size))
+      enable_redirection = HttpConfig::m_master.redirection_enabled;
+
+    call_transact_and_set_next_state(HttpTransact::ModifyRequest);
+
+    break;
+  default:
+    ink_assert(!"not reached");
+  }
+
+  return 0;
+}
+
+#ifdef PROXY_DRAIN
+int
+HttpSM::state_drain_client_request_body(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_drain_client_request_body, event);
+
+  ink_assert(ua_entry->read_vio == (VIO *) data);
+  ink_assert(ua_entry->vc == ua_session);
+
+  switch (event) {
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    {
+      // Nothing we can do
+      terminate_sm = true;
+      break;
+    }
+  case VC_EVENT_READ_READY:
+    {
+      int64_t avail = ua_buffer_reader->read_avail();
+      int64_t left = t_state.hdr_info.request_content_length - client_request_body_bytes;
+
+      // Since we are only reading what's needed to complete
+      //   the post, there must be something left to do
+      ink_assert(avail < left);
+
+      client_request_body_bytes += avail;
+      ua_buffer_reader->consume(avail);
+      ua_entry->read_vio->reenable_re();
+      break;
+    }
+  case VC_EVENT_READ_COMPLETE:
+    {
+      // We've finished draing the POST body
+      int64_t avail = ua_buffer_reader->read_avail();
+
+      ua_buffer_reader->consume(avail);
+      client_request_body_bytes += avail;
+      ink_assert(client_request_body_bytes == t_state.hdr_info.request_content_length);
+
+      ua_buffer_reader->mbuf->size_index = HTTP_HEADER_BUFFER_SIZE_INDEX;
+      ua_entry->vc_handler = &HttpSM::state_watch_for_client_abort;
+      ua_entry->read_vio = ua_entry->vc->do_io_read(this, INT64_MAX, ua_buffer_reader->mbuf);
+      call_transact_and_set_next_state(NULL);
+      break;
+    }
+  default:
+    ink_release_assert(0);
+  }
+
+  return EVENT_DONE;
+}
+#endif /* PROXY_DRAIN */
+
+
+int
+HttpSM::state_watch_for_client_abort(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_watch_for_client_abort, event);
+
+  ink_assert(ua_entry->read_vio == (VIO *) data);
+  ink_assert(ua_entry->vc == ua_session);
+
+  switch (event) {
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    {
+      if (tunnel.is_tunnel_active()) {
+        // Check to see if the user agent is part of the tunnel.
+        //  If so forward the event to the tunnel.  Otherwise,
+        //  kill the tunnel and fallthrough to the case
+        //  where the tunnel is not active
+        HttpTunnelConsumer *c = tunnel.get_consumer(ua_session);
+        if (c && c->alive) {
+          DebugSM("http", "[%" PRId64 "] [watch_for_client_abort] "
+                "forwarding event %s to tunnel", sm_id, HttpDebugNames::get_event_name(event));
+          tunnel.handleEvent(event, c->write_vio);
+          return 0;
+        } else {
+          tunnel.kill_tunnel();
+        }
+      }
+      // Disable further I/O on the client
+      if (ua_entry->read_vio) {
+        ua_entry->read_vio->nbytes = ua_entry->read_vio->ndone;
+      }
+      mark_server_down_on_client_abort();
+      milestones.ua_close = ink_get_hrtime();
+      set_ua_abort(HttpTransact::ABORTED, event);
+      terminate_sm = true;
+      break;
+    }
+  case VC_EVENT_READ_COMPLETE:
+    // XXX Work around for TS-1233.
+  case VC_EVENT_READ_READY:
+    //  Ignore.  Could be a pipelined request.  We'll get to  it
+    //    when we finish the current transaction
+    break;
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  return 0;
+}
+
+void
+HttpSM::setup_push_read_response_header()
+{
+  ink_assert(server_session == NULL);
+  ink_assert(server_entry == NULL);
+  ink_assert(ua_session != NULL);
+  ink_assert(t_state.method == HTTP_WKSIDX_PUSH);
+
+  // Set the handler to read the pushed response hdr
+  ua_entry->vc_handler = &HttpSM::state_read_push_response_header;
+
+  // We record both the total payload size as
+  //  client_request_body_bytes and the bytes for the individual
+  //  pushed hdr and body components
+  pushed_response_hdr_bytes = 0;
+  client_request_body_bytes = 0;
+
+  // Note: we must use destroy() here since clear()
+  //  does not free the memory from the header
+  t_state.hdr_info.server_response.destroy();
+  t_state.hdr_info.server_response.create(HTTP_TYPE_RESPONSE);
+  http_parser_clear(&http_parser);
+
+  // We already done the READ when we read the client
+  //  request header
+  ink_assert(ua_entry->read_vio);
+
+  // If there is anything in the buffer call the parsing routines
+  //  since if the response is finished, we won't get any
+  //  additional callbacks
+  int resp_hdr_state = VC_EVENT_CONT;
+  if (ua_buffer_reader->read_avail() > 0) {
+    if (ua_entry->eos) {
+      resp_hdr_state = state_read_push_response_header(VC_EVENT_EOS, ua_entry->read_vio);
+    } else {
+      resp_hdr_state = state_read_push_response_header(VC_EVENT_READ_READY, ua_entry->read_vio);
+    }
+  }
+  // It is possible that the entire PUSHed response header was already
+  //  in the buffer.  In this case we don't want to fire off any more
+  //  IO since we are going to switch buffers when we go to tunnel to
+  //  the cache
+  if (resp_hdr_state == VC_EVENT_CONT) {
+    ink_assert(ua_entry->eos == false);
+    ua_entry->read_vio = ua_session->do_io_read(this, INT64_MAX, ua_buffer_reader->mbuf);
+  }
+}
+
+int
+HttpSM::state_read_push_response_header(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_read_push_response_header, event);
+  ink_assert(ua_entry->read_vio == (VIO *) data);
+  ink_assert(t_state.current.server == NULL);
+
+  int64_t data_size = 0;
+  int64_t  bytes_used = 0;
+
+  // Not used here.
+  //bool parse_error = false;
+  //VIO* vio = (VIO*) data;
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    ua_entry->eos = true;
+    // Fall through
+
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+    // More data to parse
+    break;
+
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    // The user agent is hosed.  Send an error
+    t_state.client_info.abort = HttpTransact::ABORTED;
+    call_transact_and_set_next_state(HttpTransact::HandleBadPushRespHdr);
+    return 0;
+  }
+
+  int state = PARSE_CONT;
+  while (ua_buffer_reader->read_avail() && state == PARSE_CONT) {
+    const char *start = ua_buffer_reader->start();
+    const char *tmp = start;
+    data_size = ua_buffer_reader->block_read_avail();
+    ink_assert(data_size >= 0);
+
+    /////////////////////
+    // tokenize header //
+    /////////////////////
+    state = t_state.hdr_info.server_response.parse_resp(&http_parser, &tmp, tmp + data_size, false      // Only call w/ eof when data exhausted
+      );
+
+    bytes_used = tmp - start;
+
+    ink_release_assert(bytes_used <= data_size);
+    ua_buffer_reader->consume(bytes_used);
+    pushed_response_hdr_bytes += bytes_used;
+    client_request_body_bytes += bytes_used;
+  }
+
+  // We are out of data.  If we've received an EOS we need to
+  //  call the parser with (eof == true) so it can determine
+  //  whether to use the response as is or declare a parse error
+  if (ua_entry->eos) {
+    const char *end = ua_buffer_reader->start();
+    state = t_state.hdr_info.server_response.parse_resp(&http_parser, &end, end, true   // We are out of data after server eos
+      );
+    ink_release_assert(state == PARSE_DONE || state == PARSE_ERROR);
+  }
+  // Don't allow 0.9 (unparsable headers) since TS doesn't
+  //   cache 0.9 responses
+  if (state == PARSE_DONE && t_state.hdr_info.server_response.version_get() == HTTPVersion(0, 9)) {
+    state = PARSE_ERROR;
+  }
+
+  if (state != PARSE_CONT) {
+    // Disable further IO
+    ua_entry->read_vio->nbytes = ua_entry->read_vio->ndone;
+    http_parser_clear(&http_parser);
+    milestones.server_read_header_done = ink_get_hrtime();
+  }
+
+  switch (state) {
+  case PARSE_ERROR:
+    DebugSM("http", "[%" PRId64 "] error parsing push response header", sm_id);
+    call_transact_and_set_next_state(HttpTransact::HandleBadPushRespHdr);
+    break;
+
+  case PARSE_CONT:
+    ua_entry->read_vio->reenable();
+    return VC_EVENT_CONT;
+
+  case PARSE_DONE:
+    DebugSM("http", "[%" PRId64 "] done parsing push response header", sm_id);
+    call_transact_and_set_next_state(HttpTransact::HandlePushResponseHdr);
+    break;
+  default:
+    ink_assert(!"not reached");
+  }
+
+  return VC_EVENT_DONE;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_http_server_open()
+//
+//////////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_raw_http_server_open(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_raw_http_server_open, event);
+  ink_assert(server_entry == NULL);
+  milestones.server_connect_end = ink_get_hrtime();
+  NetVConnection *netvc = NULL;
+
+  pending_action = NULL;
+  switch (event) {
+  case NET_EVENT_OPEN:
+
+    if (t_state.pCongestionEntry != NULL) {
+      t_state.pCongestionEntry->connection_opened();
+      t_state.congestion_connection_opened = 1;
+    }
+    // Record the VC in our table
+    server_entry = vc_table.new_entry();
+    server_entry->vc = netvc = (NetVConnection *) data;
+    server_entry->vc_type = HTTP_RAW_SERVER_VC;
+    t_state.current.state = HttpTransact::CONNECTION_ALIVE;
+
+    netvc->set_inactivity_timeout(HRTIME_SECONDS(t_state.txn_conf->transaction_no_activity_timeout_out));
+    netvc->set_active_timeout(HRTIME_SECONDS(t_state.txn_conf->transaction_active_timeout_out));
+    break;
+
+  case VC_EVENT_ERROR:
+  case NET_EVENT_OPEN_FAILED:
+    if (t_state.pCongestionEntry != NULL) {
+      t_state.current.state = HttpTransact::CONNECTION_ERROR;
+      call_transact_and_set_next_state(HttpTransact::HandleResponse);
+      return 0;
+    } else {
+      t_state.current.state = HttpTransact::OPEN_RAW_ERROR;
+      // use this value just to get around other values
+      t_state.hdr_info.response_error = HttpTransact::STATUS_CODE_SERVER_ERROR;
+    }
+    break;
+  case CONGESTION_EVENT_CONGESTED_ON_F:
+    t_state.current.state = HttpTransact::CONGEST_CONTROL_CONGESTED_ON_F;
+    break;
+  case CONGESTION_EVENT_CONGESTED_ON_M:
+    t_state.current.state = HttpTransact::CONGEST_CONTROL_CONGESTED_ON_M;
+    break;
+
+  case EVENT_INTERVAL:
+    Error("[HttpSM::state_raw_http_server_open] event: EVENT_INTERVAL state: %d server_entry: %p",
+          t_state.current.state, server_entry);
+    return 0;
+
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  call_transact_and_set_next_state(HttpTransact::OriginServerRawOpen);
+  return 0;
+
+}
+
+
+// int HttpSM::state_request_wait_for_transform_read(int event, void* data)
+//
+//   We've done a successful transform open and issued a do_io_write
+//    to the transform.  We are now ready for the transform  to tell
+//    us it is now ready to be read from and it done modifying the
+//    server request header
+//
+int
+HttpSM::state_request_wait_for_transform_read(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_request_wait_for_transform_read, event);
+  int64_t size = *((int64_t*)data);
+
+  switch (event) {
+  case TRANSFORM_READ_READY:
+    if (size != INT64_MAX && size >= 0) {
+      // We got a content length so update our internal
+      //   data as well as fix up the request header
+      t_state.hdr_info.transform_request_cl = size;
+      t_state.hdr_info.server_request.value_set_int64(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH, size);
+      setup_server_send_request_api();
+      break;
+    } else {
+      // No content length from the post.  This is a no go
+      //  since http spec requires content length when
+      //  sending a request message body.  Change the event
+      //  to an error and fall through
+      event = VC_EVENT_ERROR;
+      Log::error("Request transformation failed to set content length");
+    }
+    // FALLTHROUGH
+  default:
+    state_common_wait_for_transform_read(&post_transform_info, &HttpSM::tunnel_handler_post, event, data);
+    break;
+  }
+
+  return 0;
+}
+
+
+// int HttpSM::state_response_wait_for_transform_read(int event, void* data)
+//
+//   We've done a successful transform open and issued a do_io_write
+//    to the transform.  We are now ready for the transform  to tell
+//    us it is now ready to be read from and it done modifying the
+//    user agent response header
+//
+int
+HttpSM::state_response_wait_for_transform_read(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_response_wait_for_transform_read, event);
+  int64_t size = *((int64_t*)data);
+
+  switch (event) {
+  case TRANSFORM_READ_READY:
+    if (size != INT64_MAX && size >= 0) {
+      // We got a content length so update our internal state
+      t_state.hdr_info.transform_response_cl = size;
+      t_state.hdr_info.transform_response.value_set_int64(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH, size);
+    } else {
+      t_state.hdr_info.transform_response_cl = HTTP_UNDEFINED_CL;
+    }
+    call_transact_and_set_next_state(HttpTransact::handle_transform_ready);
+    break;
+  default:
+    state_common_wait_for_transform_read(&transform_info, &HttpSM::tunnel_handler, event, data);
+    break;
+  }
+
+  return 0;
+}
+
+
+// int HttpSM::state_common_wait_for_transform_read(...)
+//
+//   This function handles the overlapping cases between request and response
+//     transforms which prevents code duplication
+//
+int
+HttpSM::state_common_wait_for_transform_read(HttpTransformInfo * t_info, HttpSMHandler tunnel_handler, int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_common_wait_for_transform_read, event);
+  HttpTunnelConsumer *c = 0;
+
+  switch (event) {
+  case HTTP_TUNNEL_EVENT_DONE:
+    // There are three reasons why the the tunnel could signal completed
+    //   1) there was error from the transform write
+    //   2) there was an error from the data source
+    //   3) the transform write completed before it sent
+    //      TRANSFORM_READ_READY which is legal and in which
+    //      case we should just wait for the transform read ready
+    c = tunnel.get_consumer(t_info->vc);
+    ink_assert(c != NULL);
+    ink_assert(c->vc == t_info->entry->vc);
+
+    if (c->handler_state == HTTP_SM_TRANSFORM_FAIL) {
+      // Case 1 we failed to complete the write to the
+      //  transform fall through to vc event error case
+      ink_assert(c->write_success == false);
+    } else if (c->producer->read_success == false) {
+      // Case 2 - error from data source
+      if (c->producer->vc_type == HT_HTTP_CLIENT) {
+        // Our source is the client.  POST can't
+        //   be truncated so forward to the tunnel
+        //   handler to clean this mess up
+        ink_assert(t_info == &post_transform_info);
+        return (this->*tunnel_handler) (event, data);
+      } else {
+        // On the response side, we just forward as much
+        //   as we can of truncated documents so
+        //   just don't cache the result
+        ink_assert(t_info == &transform_info);
+        t_state.api_info.cache_transformed = false;
+        return 0;
+      }
+    } else {
+      // Case 3 - wait for transform read ready
+      return 0;
+    }
+    // FALLTHROUGH
+  case VC_EVENT_ERROR:
+    // Transform VC sends NULL on error conditions
+    if (!c) {
+      c = tunnel.get_consumer(t_info->vc);
+      ink_assert(c != NULL);
+    }
+    vc_table.cleanup_entry(t_info->entry);
+    t_info->entry = NULL;
+    // In Case 1: error due to transform write,
+    // we need to keep the original t_info->vc for transform_cleanup()
+    // to skip do_io_close(); otherwise, set it to NULL.
+    if (c->handler_state != HTTP_SM_TRANSFORM_FAIL) {
+      t_info->vc = NULL;
+    }
+    tunnel.kill_tunnel();
+    call_transact_and_set_next_state(HttpTransact::HandleApiErrorJump);
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  return 0;
+}
+
+// int HttpSM::state_api_callback(int event, void *data)
+
+//   InkAPI.cc calls us directly here to avoid problems
+//    with setting and changing the default_handler
+//    function.  As such, this is an entry point
+//    and needs to handle the reentrancy counter and
+//    deallocation the state machine if necessary
+//
+int
+HttpSM::state_api_callback(int event, void *data)
+{
+  ink_release_assert(magic == HTTP_SM_MAGIC_ALIVE);
+
+  ink_assert(reentrancy_count >= 0);
+  reentrancy_count++;
+
+  STATE_ENTER(&HttpSM::state_api_callback, event);
+
+  state_api_callout(event, data);
+
+  // The sub-handler signals when it is time for the state
+  //  machine to exit.  We can only exit if we are not reentrantly
+  //  called otherwise when the our call unwinds, we will be
+  //  running on a dead state machine
+  //
+  // Because of the need for an api shutdown hook, kill_this()
+  //  is also reentrant.  As such, we don't want to decrement
+  //  the reentrancy count until after we run kill_this()
+  //
+  if (terminate_sm == true && reentrancy_count == 1) {
+    kill_this();
+  } else {
+    reentrancy_count--;
+    ink_assert(reentrancy_count >= 0);
+  }
+
+  return VC_EVENT_CONT;
+}
+
+int
+HttpSM::state_api_callout(int event, void *data)
+{
+  // enum and variable for figuring out what the next action is after
+  //   after we've finished the api state
+  enum AfterApiReturn_t
+  {
+    API_RETURN_UNKNOWN = 0,
+    API_RETURN_CONTINUE,
+    API_RETURN_DEFERED_CLOSE,
+    API_RETURN_DEFERED_SERVER_ERROR,
+    API_RETURN_ERROR_JUMP,
+    API_RETURN_SHUTDOWN,
+    API_RETURN_INVALIDATE_ERROR
+  };
+  AfterApiReturn_t api_next = API_RETURN_UNKNOWN;
+
+  if (event != EVENT_NONE) {
+    STATE_ENTER(&HttpSM::state_api_callout, event);
+  }
+
+  switch (event) {
+  case EVENT_INTERVAL:
+    ink_assert(pending_action == data);
+    pending_action = NULL;
+    // FALLTHROUGH
+  case EVENT_NONE:
+  case HTTP_API_CONTINUE:
+    if ((cur_hook_id >= 0) && (cur_hook_id < TS_HTTP_LAST_HOOK)) {
+      if (!cur_hook) {
+        if (cur_hooks == 0) {
+          cur_hook = http_global_hooks->get(cur_hook_id);
+          cur_hooks++;
+        }
+      }
+      // even if ua_session is NULL, cur_hooks must
+      // be incremented otherwise cur_hooks is not set to 2 and
+      // transaction hooks (stored in api_hooks object) are not called.
+      if (!cur_hook) {
+        if (cur_hooks == 1) {
+          if (ua_session) {
+            cur_hook = ua_session->ssn_hook_get(cur_hook_id);
+          }
+          cur_hooks++;
+        }
+      }
+      if (!cur_hook) {
+        if (cur_hooks == 2) {
+          cur_hook = api_hooks.get(cur_hook_id);
+          cur_hooks++;
+        }
+      }
+      if (cur_hook) {
+        if (callout_state == HTTP_API_NO_CALLOUT) {
+          callout_state = HTTP_API_IN_CALLOUT;
+        }
+
+        /* The MUTEX_TRY_LOCK macro was changed so
+           that it can't handle NULL mutex'es.  The plugins
+           can use null mutexes so we have to do this manually.
+           We need to take a smart pointer to the mutex since
+           the plugin could release it's mutex while we're on
+           the callout
+         */
+        bool plugin_lock;
+        Ptr<ProxyMutex> plugin_mutex;
+        if (cur_hook->m_cont->mutex) {
+          plugin_mutex = cur_hook->m_cont->mutex;
+          plugin_lock = MUTEX_TAKE_TRY_LOCK(cur_hook->m_cont->mutex, mutex->thread_holding);
+
+          if (!plugin_lock) {
+            HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_api_callout);
+            ink_assert(pending_action == NULL);
+            pending_action = mutex->thread_holding->schedule_in(this, HRTIME_MSECONDS(10));
+            return 0;
+          }
+        } else {
+          plugin_lock = false;
+        }
+
+        DebugSM("http", "[%" PRId64 "] calling plugin on hook %s at hook %p",
+              sm_id, HttpDebugNames::get_api_hook_name(cur_hook_id), cur_hook);
+
+        APIHook *hook = cur_hook;
+        cur_hook = cur_hook->next();
+
+        hook->invoke(TS_EVENT_HTTP_READ_REQUEST_HDR + cur_hook_id, this);
+
+        if (plugin_lock) {
+          Mutex_unlock(plugin_mutex, mutex->thread_holding);
+        }
+
+        return 0;
+      }
+    }
+    // Map the callout state into api_next
+    switch (callout_state) {
+    case HTTP_API_NO_CALLOUT:
+    case HTTP_API_IN_CALLOUT:
+      if (t_state.api_modifiable_cached_resp &&
+          t_state.api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_PREPARE) {
+        t_state.api_update_cached_object = HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE;
+      }
+      api_next = API_RETURN_CONTINUE;
+      break;
+    case HTTP_API_DEFERED_CLOSE:
+      api_next = API_RETURN_DEFERED_CLOSE;
+      break;
+    case HTTP_API_DEFERED_SERVER_ERROR:
+      api_next = API_RETURN_DEFERED_SERVER_ERROR;
+      break;
+    default:
+      ink_release_assert(0);
+    }
+    break;
+
+  case HTTP_API_ERROR:
+    if (callout_state == HTTP_API_DEFERED_CLOSE) {
+      api_next = API_RETURN_DEFERED_CLOSE;
+    } else if (cur_hook_id == TS_HTTP_TXN_CLOSE_HOOK) {
+      // If we are closing the state machine, we can't
+      //   jump to an error state so just continue
+      api_next = API_RETURN_CONTINUE;
+    } else if (t_state.api_http_sm_shutdown) {
+      t_state.api_http_sm_shutdown = false;
+      t_state.cache_info.object_read = NULL;
+      cache_sm.close_read();
+      transform_cache_sm.close_read();
+      release_server_session();
+      terminate_sm = true;
+      api_next = API_RETURN_SHUTDOWN;
+      t_state.squid_codes.log_code = SQUID_LOG_TCP_DENIED;
+    } else if (t_state.api_modifiable_cached_resp &&
+               t_state.api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_PREPARE) {
+      t_state.api_update_cached_object = HttpTransact::UPDATE_CACHED_OBJECT_ERROR;
+      api_next = API_RETURN_INVALIDATE_ERROR;
+    } else {
+      api_next = API_RETURN_ERROR_JUMP;
+    }
+    break;
+
+    // We may receive an event from the tunnel
+    // if it took a long time to call the SEND_RESPONSE_HDR hook
+  case HTTP_TUNNEL_EVENT_DONE:
+    state_common_wait_for_transform_read(&transform_info, &HttpSM::tunnel_handler, event, data);
+    return 0;
+
+  default:
+    ink_assert(false);
+    terminate_sm = true;
+    return 0;
+  }
+
+  // Now that we're completed with the api state and figured out what
+  //   to do next, do it
+  callout_state = HTTP_API_NO_CALLOUT;
+  switch (api_next) {
+  case API_RETURN_CONTINUE:
+    if (t_state.api_next_action == HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR) {
+      do_redirect();
+    }
+    handle_api_return();
+    break;
+  case API_RETURN_DEFERED_CLOSE:
+    ink_assert(t_state.api_next_action == HttpTransact::SM_ACTION_API_SM_SHUTDOWN);
+    do_api_callout();
+    break;
+  case API_RETURN_DEFERED_SERVER_ERROR:
+    ink_assert(t_state.api_next_action == HttpTransact::SM_ACTION_API_SEND_REQUEST_HDR);
+    ink_assert(t_state.current.state != HttpTransact::CONNECTION_ALIVE);
+    call_transact_and_set_next_state(HttpTransact::HandleResponse);
+    break;
+  case API_RETURN_ERROR_JUMP:
+    call_transact_and_set_next_state(HttpTransact::HandleApiErrorJump);
+    break;
+  case API_RETURN_SHUTDOWN:
+    break;
+  case API_RETURN_INVALIDATE_ERROR:
+    do_cache_prepare_update();
+    break;
+  default:
+  case API_RETURN_UNKNOWN:
+    ink_release_assert(0);
+
+  }
+
+  return 0;
+}
+
+// void HttpSM::handle_api_return()
+//
+//   Figures out what to do after calling api callouts
+//    have finished.  This messy and I would like
+//    to come up with a cleaner way to handle the api
+//    return.  The way we are doing things also makes a
+//    mess of set_next_state()
+//
+void
+HttpSM::handle_api_return()
+{
+  switch (t_state.api_next_action) {
+  case HttpTransact::SM_ACTION_API_SM_START:
+    if (t_state.client_info.port_attribute == HttpProxyPort::TRANSPORT_BLIND_TUNNEL) {
+      setup_blind_tunnel_port();
+    } else {
+      setup_client_read_request_header();
+    }
+    return;
+  case HttpTransact::SM_ACTION_API_PRE_REMAP:
+  case HttpTransact::SM_ACTION_API_POST_REMAP:
+  case HttpTransact::SM_ACTION_API_READ_REQUEST_HDR:
+  case HttpTransact::SM_ACTION_API_OS_DNS:
+  case HttpTransact::SM_ACTION_API_READ_CACHE_HDR:
+  case HttpTransact::SM_ACTION_API_READ_RESPONSE_HDR:
+  case HttpTransact::SM_ACTION_API_CACHE_LOOKUP_COMPLETE:
+    // this part is added for automatic redirect
+    if (t_state.api_next_action == HttpTransact::SM_ACTION_API_READ_RESPONSE_HDR && t_state.api_release_server_session) {
+      t_state.api_release_server_session = false;
+      release_server_session();
+    } else if (t_state.api_next_action == HttpTransact::SM_ACTION_API_CACHE_LOOKUP_COMPLETE &&
+               t_state.api_cleanup_cache_read &&
+               t_state.api_update_cached_object != HttpTransact::UPDATE_CACHED_OBJECT_PREPARE) {
+      t_state.api_cleanup_cache_read = false;
+      t_state.cache_info.object_read = NULL;
+      t_state.request_sent_time = UNDEFINED_TIME;
+      t_state.response_received_time = UNDEFINED_TIME;
+      cache_sm.close_read();
+      transform_cache_sm.close_read();
+    }
+    call_transact_and_set_next_state(NULL);
+    return;
+  case HttpTransact::SM_ACTION_API_SEND_REQUEST_HDR:
+    setup_server_send_request();
+    return;
+  case HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR:
+    // Set back the inactivity timeout
+    if (ua_session) {
+      ua_session->get_netvc()->set_inactivity_timeout(HRTIME_SECONDS(t_state.txn_conf->transaction_no_activity_timeout_in));
+    }
+    // we have further processing to do
+    //  based on what t_state.next_action is
+    break;
+  case HttpTransact::SM_ACTION_API_SM_SHUTDOWN:
+    state_remove_from_list(EVENT_NONE, NULL);
+    return;
+  default:
+    ink_release_assert("! Not reached");
+    break;
+  }
+
+  switch (t_state.next_action) {
+  case HttpTransact::SM_ACTION_TRANSFORM_READ:
+    {
+      HttpTunnelProducer *p = setup_transfer_from_transform();
+      perform_transform_cache_write_action();
+      tunnel.tunnel_run(p);
+      break;
+    }
+  case HttpTransact::SM_ACTION_SERVER_READ:
+    {
+      if (unlikely(t_state.did_upgrade_succeed)) {
+       // We've sucessfully handled the upgrade, let's now setup
+       // a blind tunnel.
+       if(t_state.is_websocket) {
+         HTTP_INCREMENT_DYN_STAT(http_websocket_current_active_client_connections_stat);
+       }
+
+       setup_blind_tunnel(true);
+      } else {
+       setup_server_transfer();
+       perform_cache_write_action();
+       tunnel.tunnel_run();
+      }
+      break;
+    }
+  case HttpTransact::SM_ACTION_SERVE_FROM_CACHE:
+    {
+      setup_cache_read_transfer();
+      tunnel.tunnel_run();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_WRITE:
+    {
+      if (cache_sm.cache_write_vc) {
+        setup_internal_transfer(&HttpSM::tunnel_handler_cache_fill);
+      } else {
+        setup_internal_transfer(&HttpSM::tunnel_handler);
+      }
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_NOOP:
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_DELETE:
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS:
+  case HttpTransact::SM_ACTION_SEND_ERROR_CACHE_NOOP:
+    {
+      setup_internal_transfer(&HttpSM::tunnel_handler);
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_REDIRECT_READ:
+    {
+      call_transact_and_set_next_state(HttpTransact::HandleRequest);
+      break;
+    }
+
+  default:
+    {
+      ink_release_assert(!"Should not get here");
+    }
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_http_server_open()
+//
+//////////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_http_server_open(int event, void *data)
+{
+  DebugSM("http_track", "entered inside state_http_server_open");
+  STATE_ENTER(&HttpSM::state_http_server_open, event);
+  // TODO decide whether to uncomment after finish testing redirect
+  // ink_assert(server_entry == NULL);
+  pending_action = NULL;
+  milestones.server_connect_end = ink_get_hrtime();
+  HttpServerSession *session;
+
+  switch (event) {
+  case NET_EVENT_OPEN:
+    session = (TS_SERVER_SESSION_SHARING_POOL_THREAD == t_state.txn_conf->server_session_sharing_pool) ? 
+      THREAD_ALLOC_INIT(httpServerSessionAllocator, mutex->thread_holding) :
+      httpServerSessionAllocator.alloc();
+    session->sharing_pool = static_cast<TSServerSessionSharingPoolType>(t_state.txn_conf->server_session_sharing_pool);
+    session->sharing_match = static_cast<TSServerSessionSharingMatchType>(t_state.txn_conf->server_session_sharing_match);
+//    session->share_session = t_state.txn_conf->share_server_sessions;
+
+    // If origin_max_connections or origin_min_keep_alive_connections is
+    // set then we are metering the max and or min number
+    // of connections per host.  Set enable_origin_connection_limiting
+    // to true in the server session so it will increment and decrement
+    // the connection count.
+    if (t_state.txn_conf->origin_max_connections > 0 ||
+        t_state.http_config_param->origin_min_keep_alive_connections > 0) {
+      DebugSM("http_ss", "[%" PRId64 "] max number of connections: %" PRIu64, sm_id, t_state.txn_conf->origin_max_connections);
+      session->enable_origin_connection_limiting = true;
+    }
+    /*UnixNetVConnection * vc = (UnixNetVConnection*)(ua_session->client_vc);
+       UnixNetVConnection *server_vc = (UnixNetVConnection*)data;
+       printf("client fd is :%d , server fd is %d\n",vc->con.fd,
+       server_vc->con.fd); */
+    ats_ip_copy(&session->server_ip, &t_state.current.server->addr);
+    session->new_connection((NetVConnection *) data);
+    ats_ip_port_cast(&session->server_ip) = htons(t_state.current.server->port);
+    session->state = HSS_ACTIVE;
+
+    attach_server_session(session);
+    if (t_state.current.request_to == HttpTransact::PARENT_PROXY) {
+      session->to_parent_proxy = true;
+      HTTP_INCREMENT_DYN_STAT(http_current_parent_proxy_connections_stat);
+      HTTP_INCREMENT_DYN_STAT(http_total_parent_proxy_connections_stat);
+
+    } else {
+      session->to_parent_proxy = false;
+    }
+    handle_http_server_open();
+    return 0;
+  case EVENT_INTERVAL:
+    do_http_server_open();
+    break;
+  case VC_EVENT_ERROR:
+  case NET_EVENT_OPEN_FAILED:
+    t_state.current.state = HttpTransact::CONNECTION_ERROR;
+    // save the errno from the connect fail for future use (passed as negative value, flip back)
+    t_state.current.server->set_connect_fail(event == NET_EVENT_OPEN_FAILED ? -reinterpret_cast<intptr_t>(data) : ECONNABORTED);
+
+    /* If we get this error, then we simply can't bind to the 4-tuple to make the connection.  There's no hope of
+       retries succeeding in the near future. The best option is to just shut down the connection without further
+       comment. The only known cause for this is outbound transparency combined with use client target address / source
+       port, as noted in TS-1424. If the keep alives desync the current connection can be attempting to rebind the 4
+       tuple simultaneously with the shut down of an existing connection. Dropping the client side will cause it to pick
+       a new source port and recover from this issue.
+    */
+    if (EADDRNOTAVAIL == t_state.current.server->connect_result) {
+      if (is_debug_tag_set("http_tproxy")) {
+        ip_port_text_buffer ip_c, ip_s;
+        Debug("http_tproxy", "Force close of client connect (%s->%s) due to EADDRNOTAVAIL [%" PRId64 "]"
+              , ats_ip_nptop(&t_state.client_info.addr.sa, ip_c, sizeof ip_c)
+              , ats_ip_nptop(&t_state.server_info.addr.sa, ip_s, sizeof ip_s)
+              , sm_id
+          );
+      }
+      t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE; // part of the problem, clear it.
+      terminate_sm = true;
+    } else {
+      call_transact_and_set_next_state(HttpTransact::HandleResponse);
+    }
+    return 0;
+  case CONGESTION_EVENT_CONGESTED_ON_F:
+    t_state.current.state = HttpTransact::CONGEST_CONTROL_CONGESTED_ON_F;
+    call_transact_and_set_next_state(HttpTransact::HandleResponse);
+    return 0;
+  case CONGESTION_EVENT_CONGESTED_ON_M:
+    t_state.current.state = HttpTransact::CONGEST_CONTROL_CONGESTED_ON_M;
+    call_transact_and_set_next_state(HttpTransact::HandleResponse);
+    return 0;
+
+  default:
+    Error("[HttpSM::state_http_server_open] Unknown event: %d", event);
+    ink_release_assert(0);
+    return 0;
+  }
+
+  return 0;
+}
+
+
+int
+HttpSM::state_read_server_response_header(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_read_server_response_header, event);
+  ink_assert(server_entry->read_vio == (VIO *) data);
+  ink_assert(t_state.current.server->state == HttpTransact::STATE_UNDEFINED);
+  ink_assert(t_state.current.state == HttpTransact::STATE_UNDEFINED);
+
+  int bytes_used = 0;
+  VIO *vio = (VIO *) data;
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    server_entry->eos = true;
+
+    // If no bytes were transmitted, the parser treats
+    // as a good 0.9 response which is technically is
+    // but it's indistinguishable from an overloaded
+    // server closing the connection so don't accept
+    // zero length responses
+    if (vio->ndone == 0) {
+      // Error handling function
+      handle_server_setup_error(event, data);
+      return 0;
+    }
+    // Fall through
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+    // More data to parse
+    break;
+
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    // Error handling function
+    handle_server_setup_error(event, data);
+    return 0;
+  }
+
+  // Reset the inactivity timeout if this is the first
+  //   time we've been called.  The timeout had been set to
+  //   the connect timeout when we set up to read the header
+  //
+  if (server_response_hdr_bytes == 0) {
+    milestones.server_first_read = ink_get_hrtime();
+
+    if (t_state.api_txn_no_activity_timeout_value != -1) {
+      server_session->get_netvc()->set_inactivity_timeout(HRTIME_MSECONDS(t_state.api_txn_no_activity_timeout_value));
+    } else {
+      server_session->get_netvc()->set_inactivity_timeout(HRTIME_SECONDS(t_state.txn_conf->transaction_no_activity_timeout_out));
+    }
+
+    // For requests that contain a body, we can cancel the ua inactivity timeout.
+    if (ua_session && t_state.hdr_info.request_content_length) {
+      ua_session->get_netvc()->cancel_inactivity_timeout();
+    }
+  }
+  /////////////////////
+  // tokenize header //
+  /////////////////////
+  int state = t_state.hdr_info.server_response.parse_resp(&http_parser, server_buffer_reader,
+                                                          &bytes_used, server_entry->eos);
+
+  server_response_hdr_bytes += bytes_used;
+
+  // Don't allow 0.9 (unparsable headers) on keep-alive connections after
+  //  the connection has already served a transaction as what we are likely
+  //  looking at is garbage on a keep-alive channel corrupted by the origin
+  //  server
+  if (state == PARSE_DONE &&
+      t_state.hdr_info.server_response.version_get() == HTTPVersion(0, 9) && server_session->transact_count > 1) {
+    state = PARSE_ERROR;
+  }
+  // Check to see if we are over the hdr size limit
+  if (server_response_hdr_bytes > t_state.txn_conf->response_hdr_max_size) {
+    state = PARSE_ERROR;
+  }
+
+  if (state != PARSE_CONT) {
+    // Disable further IO
+    server_entry->read_vio->nbytes = server_entry->read_vio->ndone;
+    http_parser_clear(&http_parser);
+    milestones.server_read_header_done = ink_get_hrtime();
+  }
+
+  switch (state) {
+  case PARSE_ERROR:
+    {
+      // Many broken servers send really badly formed 302 redirects.
+      //  Even if the parser doesn't like the redirect forward
+      //  if it's got a Location header.  We check the type of the
+      //  response to make sure that the parser was able to parse
+      //  something  and didn't just throw up it's hands (INKqa05339)
+      bool allow_error = false;
+      if (t_state.hdr_info.server_response.type_get() == HTTP_TYPE_RESPONSE &&
+          t_state.hdr_info.server_response.status_get() == HTTP_STATUS_MOVED_TEMPORARILY) {
+        if (t_state.hdr_info.server_response.field_find(MIME_FIELD_LOCATION, MIME_LEN_LOCATION)) {
+          allow_error = true;
+        }
+      }
+
+      if (allow_error == false) {
+        DebugSM("http_seq", "Error parsing server response header");
+        t_state.current.state = HttpTransact::PARSE_ERROR;
+
+        // If the server closed prematurely on us, use the
+        //   server setup error routine since it will forward
+        //   error to a POST tunnel if any
+        if (event == VC_EVENT_EOS) {
+          handle_server_setup_error(VC_EVENT_EOS, data);
+        } else {
+          call_transact_and_set_next_state(HttpTransact::HandleResponse);
+        }
+        break;
+      }
+      // FALLTHROUGH (since we are allowing the parse error)
+    }
+  case PARSE_DONE:
+    DebugSM("http_seq", "Done parsing server response header");
+
+    // Now that we know that we have all of the origin server
+    // response headers, we can reset the client inactivity
+    // timeout.  This is unlikely to cause a recurrence of
+    // old bug because there will be no more retries now that
+    // the connection has been established.  It is possible
+    // however.  We do not need to reset the inactivity timeout
+    // if the request contains a body (noted by the
+    // request_content_length field) because it was never
+    // cancelled.
+    //
+
+    // we now reset the client inactivity timeout only
+    // when we are ready to send the response headers. In the
+    // case of transform plugin, this is after the transform
+    // outputs the 1st byte, which can take a long time if the
+    // plugin buffers the whole response.
+    // Also, if the request contains a body, we cancel the timeout
+    // when we read the 1st byte of the origin server response.
+    /*
+       if (ua_session && !t_state.hdr_info.request_content_length) {
+       ua_session->get_netvc()->set_inactivity_timeout(HRTIME_SECONDS(
+       HttpConfig::m_master.accept_no_activity_timeout));
+       }
+     */
+
+    t_state.current.state = HttpTransact::CONNECTION_ALIVE;
+    t_state.transact_return_point = HttpTransact::HandleResponse;
+    t_state.api_next_action = HttpTransact::SM_ACTION_API_READ_RESPONSE_HDR;
+
+    // if exceeded limit deallocate postdata buffers and disable redirection
+    if (enable_redirection && (redirection_tries < HttpConfig::m_master.number_of_redirections)) {
+      ++redirection_tries;
+    } else {
+      tunnel.deallocate_redirect_postdata_buffers();
+      enable_redirection = false;
+    }
+
+    do_api_callout();
+    break;
+  case PARSE_CONT:
+    ink_assert(server_entry->eos == false);
+    server_entry->read_vio->reenable();
+    return VC_EVENT_CONT;
+
+  default:
+    ink_assert(!"not reached");
+  }
+
+  return 0;
+}
+
+int
+HttpSM::state_send_server_request_header(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_send_server_request_header, event);
+  ink_assert(server_entry != NULL);
+  ink_assert(server_entry->write_vio == (VIO *) data || server_entry->read_vio == (VIO *) data);
+
+  int method;
+
+  switch (event) {
+  case VC_EVENT_WRITE_READY:
+    server_entry->write_vio->reenable();
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    // We are done sending the request header, deallocate
+    //  our buffer and then decide what to do next
+    free_MIOBuffer(server_entry->write_buffer);
+    server_entry->write_buffer = NULL;
+    method = t_state.hdr_info.server_request.method_get_wksidx();
+    if (!t_state.api_server_request_body_set &&
+         method != HTTP_WKSIDX_TRACE &&
+         (t_state.hdr_info.request_content_length > 0 || t_state.client_info.transfer_encoding == HttpTransact::CHUNKED_ENCODING)) {
+
+      if (post_transform_info.vc) {
+        setup_transform_to_server_transfer();
+      } else {
+        if (t_state.http_config_param->send_100_continue_response) {
+          int len = 0;
+          const char *expect = t_state.hdr_info.client_request.value_get(MIME_FIELD_EXPECT, MIME_LEN_EXPECT, &len);
+          // When receive an "Expect: 100-continue" request from client, ATS sends a "100 Continue" response to client
+          // imediately, before receive the real response from original server.
+          if ((len == HTTP_LEN_100_CONTINUE) && (strncasecmp(expect, HTTP_VALUE_100_CONTINUE, HTTP_LEN_100_CONTINUE) == 0)) {
+            int64_t alloc_index = buffer_size_to_index(len_100_continue_response);
+            ua_entry->write_buffer = new_MIOBuffer(alloc_index);
+            IOBufferReader *buf_start = ua_entry->write_buffer->alloc_reader();
+
+            DebugSM("http_seq", "send 100 Continue response to client");
+            int64_t nbytes = ua_entry->write_buffer->write(str_100_continue_response, len_100_continue_response);
+            ua_session->do_io_write(ua_session->get_netvc(), nbytes, buf_start);
+          }
+        }
+        do_setup_post_tunnel(HTTP_SERVER_VC);
+      }
+    } else {
+      // It's time to start reading the response
+      setup_server_read_response_header();
+    }
+
+    break;
+
+  case VC_EVENT_READ_READY:
+    // We already did the read for the response header and
+    //  we got some data.  Wait for the request header
+    //  send before dealing with it.  However, we need to
+    //  disable further IO here since the whole response
+    //  may be in the buffer and we can not switch buffers
+    //  on the io core later
+    ink_assert(server_entry->read_vio == (VIO *) data);
+    // setting nbytes to ndone would disable reads and remove it from the read queue.
+    // We can't do this in the epoll paradigm because we may be missing epoll errors that would
+    // prevent us from leaving this state.
+    // setup_server_read_response_header will trigger READ_READY to itself if there is data in the buffer.
+
+    //server_entry->read_vio->nbytes = server_entry->read_vio->ndone;
+
+    break;
+
+  case VC_EVENT_EOS:
+    // EOS of stream comes from the read side.  Treat it as
+    //  as error if there is nothing in the read buffer.  If
+    //  there is something the server may have blasted back
+    //  the response before receiving the request.  Happens
+    //  often with redirects
+    //
+    //  If we are in the middle of an api callout, it
+    //    means we haven't actually sent the request yet
+    //    so the stuff in the buffer is garbage and we
+    //    want to ignore it
+    //
+    server_entry->eos = true;
+
+    // I'm not sure about the above comment, but if EOS is received on read and we are
+    // still in this state, we must have not gotten WRITE_COMPLETE.  With epoll we might not receive EOS
+    // from both read and write sides of a connection so it should be handled correctly (close tunnels,
+    // deallocate, etc) here with handle_server_setup_error().  Otherwise we might hang due to not shutting
+    // down and never receiving another event again.
+    /*if (server_buffer_reader->read_avail() > 0 && callout_state == HTTP_API_NO_CALLOUT) {
+       break;
+       } */
+
+    // Nothing in the buffer
+    //  FALLTHROUGH to error
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    handle_server_setup_error(event, data);
+    break;
+
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  return 0;
+}
+
+void
+HttpSM::process_srv_info(HostDBInfo * r)
+{
+  DebugSM("dns_srv", "beginning process_srv_info");
+
+  /* we didnt get any SRV records, continue w normal lookup */
+  if (!r || !r->is_srv || !r->round_robin) {
+    t_state.dns_info.srv_hostname[0] = '\0';
+    t_state.dns_info.srv_lookup_success = false;
+    t_state.srv_lookup = false;
+    DebugSM("dns_srv", "No SRV records were available, continuing to lookup %s", t_state.dns_info.lookup_name);
+  } else {
+    HostDBRoundRobin *rr = r->rr();
+    HostDBInfo *srv = NULL;
+    if (rr) {
+      srv = rr->select_best_srv(t_state.dns_info.srv_hostname, &mutex.m_ptr->thread_holding->generator,
+          ink_cluster_time(), (int) t_state.txn_conf->down_server_timeout);
+    }
+    if (!srv) {
+      t_state.dns_info.srv_lookup_success = false;
+      t_state.dns_info.srv_hostname[0] = '\0';
+      t_state.srv_lookup = false;
+      DebugSM("dns_srv", "SRV records empty for %s", t_state.dns_info.lookup_name);
+    } else {
+      ink_assert(r->md5_high == srv->md5_high && r->md5_low == srv->md5_low &&
+          r->md5_low_low == srv->md5_low_low);
+      t_state.dns_info.srv_lookup_success = true;
+      t_state.dns_info.srv_port = srv->data.srv.srv_port;
+      t_state.dns_info.srv_app = srv->app;
+      //t_state.dns_info.single_srv = (rr->good == 1);
+      ink_assert(srv->data.srv.key == makeHostHash(t_state.dns_info.srv_hostname));
+      DebugSM("dns_srv", "select SRV records %s", t_state.dns_info.srv_hostname);
+    }
+  }
+  return;
+}
+
+void
+HttpSM::process_hostdb_info(HostDBInfo * r)
+{
+  if (r && !r->failed()) {
+    ink_time_t now = ink_cluster_time();
+    HostDBInfo *ret = NULL;
+    t_state.dns_info.lookup_success = true;
+    if (r->round_robin) {
+      // Since the time elapsed between current time and client_request_time
+      // may be very large, we cannot use client_request_time to approximate
+      // current time when calling select_best_http().
+      HostDBRoundRobin *rr = r->rr();
+      ret = rr->select_best_http(&t_state.client_info.addr.sa, now, (int) t_state.txn_conf->down_server_timeout);
+
+      // set the srv target`s last_failure
+      if (t_state.dns_info.srv_lookup_success) {
+        uint32_t last_failure = 0xFFFFFFFF;
+        for (int i = 0; i < rr->rrcount && last_failure != 0; ++i) {
+          if (last_failure > rr->info[i].app.http_data.last_failure)
+            last_failure = rr->info[i].app.http_data.last_failure;
+        }
+
+        if (last_failure != 0 && (uint32_t) (now - t_state.txn_conf->down_server_timeout) < last_failure) {
+          HostDBApplicationInfo app;
+          app.allotment.application1 = 0;
+          app.allotment.application2 = 0;
+          app.http_data.last_failure = last_failure;
+          hostDBProcessor.setby_srv(t_state.dns_info.lookup_name, 0, t_state.dns_info.srv_hostname, &app);
+        }
+      }
+    } else {
+      ret = r;
+    }
+    if (ret) {
+      t_state.host_db_info = *ret;
+      ink_release_assert(!t_state.host_db_info.reverse_dns);
+      ink_release_assert(ats_is_ip(t_state.host_db_info.ip()));
+    }
+  } else {
+    DebugSM("http", "[%" PRId64 "] DNS lookup failed for '%s'", sm_id, t_state.dns_info.lookup_name);
+
+    t_state.dns_info.lookup_success = false;
+    t_state.host_db_info.app.allotment.application1 = 0;
+    t_state.host_db_info.app.allotment.application2 = 0;
+    ink_assert(!t_state.host_db_info.round_robin);
+  }
+
+  milestones.dns_lookup_end = ink_get_hrtime();
+
+  if (is_debug_tag_set("http_timeout")) {
+    if (t_state.api_txn_dns_timeout_value != -1) {
+      int foo = (int) (milestone_difference_msec(milestones.dns_lookup_begin, milestones.dns_lookup_end));
+      DebugSM("http_timeout", "DNS took: %d msec", foo);
+    }
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_hostdb_lookup()
+//
+//////////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_hostdb_lookup(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_hostdb_lookup, event);
+
+//    ink_assert (m_origin_server_vc == 0);
+  // REQ_FLAVOR_SCHEDULED_UPDATE can be transformed into
+  // REQ_FLAVOR_REVPROXY
+  ink_assert(t_state.req_flavor == HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_REVPROXY || ua_entry->vc != NULL);
+
+  switch (event) {
+  case EVENT_HOST_DB_LOOKUP:
+    pending_action = NULL;
+    process_hostdb_info((HostDBInfo *) data);
+    call_transact_and_set_next_state(NULL);
+    break;
+    case EVENT_SRV_LOOKUP:
+    {
+      pending_action = NULL;
+      process_srv_info((HostDBInfo *) data);
+
+      char *host_name = t_state.dns_info.srv_lookup_success ? t_state.dns_info.srv_hostname : t_state.dns_info.lookup_name;
+      HostDBProcessor::Options opt;
+      opt.port = t_state.dns_info.srv_lookup_success ? t_state.dns_info.srv_port : t_state.server_info.port;
+      opt.flags = (t_state.cache_info.directives.does_client_permit_dns_storing)
+            ? HostDBProcessor::HOSTDB_DO_NOT_FORCE_DNS
+            : HostDBProcessor::HOSTDB_FORCE_DNS_RELOAD
+          ;
+      opt.timeout = (t_state.api_txn_dns_timeout_value != -1) ? t_state.api_txn_dns_timeout_value : 0;
+      opt.host_res_style = ua_session->host_res_style;
+
+      Action *dns_lookup_action_handle = hostDBProcessor.getbyname_imm(this,
+                                                                 (process_hostdb_info_pfn) & HttpSM::
+                                                                 process_hostdb_info,
+                                                                 host_name, 0,
+                                                                 opt);
+      if (dns_lookup_action_handle != ACTION_RESULT_DONE) {
+        ink_assert(!pending_action);
+        pending_action = dns_lookup_action_handle;
+        historical_action = pending_action;
+      } else {
+        call_transact_and_set_next_state(NULL);
+      }
+    }
+    break;
+  case EVENT_HOST_DB_IP_REMOVED:
+    ink_assert(!"Unexpected event from HostDB");
+    break;
+  default:
+    ink_assert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+int
+HttpSM::state_hostdb_reverse_lookup(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_hostdb_reverse_lookup, event);
+
+  // REQ_FLAVOR_SCHEDULED_UPDATE can be transformed into
+  // REQ_FLAVOR_REVPROXY
+  ink_assert(t_state.req_flavor == HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_REVPROXY || ua_entry->vc != NULL);
+
+  switch (event) {
+  case EVENT_HOST_DB_LOOKUP:
+    pending_action = NULL;
+    if (data) {
+      t_state.request_data.hostname_str = ((HostDBInfo *) data)->hostname();
+    } else {
+      DebugSM("http", "[%" PRId64 "] reverse DNS lookup failed for '%s'", sm_id, t_state.dns_info.lookup_name);
+    }
+    call_transact_and_set_next_state(NULL);
+    break;
+  default:
+    ink_assert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM:state_mark_os_down()
+//
+//////////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_mark_os_down(int event, void *data)
+{
+  HostDBInfo *mark_down = NULL;
+
+  if (event == EVENT_HOST_DB_LOOKUP && data) {
+    HostDBInfo *r = (HostDBInfo *) data;
+
+    if (r->round_robin) {
+      // Look for the entry we need mark down in the round robin
+      ink_assert(t_state.current.server != NULL);
+      ink_assert(t_state.current.request_to == HttpTransact::ORIGIN_SERVER);
+      if (t_state.current.server) {
+        mark_down = r->rr()->find_ip(&t_state.current.server->addr.sa);
+      }
+    } else {
+      // No longer a round robin, check to see if our address is the same
+      if (ats_ip_addr_eq(t_state.host_db_info.ip(), r->ip())) {
+        mark_down = r;
+      }
+    }
+
+    if (mark_down) {
+      mark_host_failure(mark_down, t_state.request_sent_time);
+    }
+  }
+  // We either found our entry or we did not.  Either way find
+  //  the entry we should use now
+  return state_hostdb_lookup(event, data);
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_handle_stat_page()
+//
+//////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_handle_stat_page(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_handle_stat_page, event);
+  switch (event) {
+  case STAT_PAGE_SUCCESS:
+    pending_action = NULL;
+
+    if (data) {
+      StatPageData *spd = (StatPageData *) data;
+
+      t_state.internal_msg_buffer = spd->data;
+      if (spd->type)
+        t_state.internal_msg_buffer_type = spd->type;
+      else
+        t_state.internal_msg_buffer_type = NULL; // Defaults to text/html
+      t_state.internal_msg_buffer_size = spd->length;
+      t_state.internal_msg_buffer_fast_allocator_size = -1;
+    }
+
+    call_transact_and_set_next_state(HttpTransact::HandleStatPage);
+    break;
+
+  case STAT_PAGE_FAILURE:
+    pending_action = NULL;
+    call_transact_and_set_next_state(HttpTransact::HandleStatPage);
+    break;
+
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  return 0;
+}
+
+///////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_auth_callback()
+//
+///////////////////////////////////////////////////////////////
+//int
+//HttpSM::state_auth_callback(int event, void *data)
+//{
+ // STATE_ENTER(&HttpSM::state_auth_lookup, event);
+
+  //ink_release_assert(ua_entry != NULL);
+  //pending_action = NULL;
+
+  //if (event == AUTH_MODULE_EVENT) {
+   // authAdapter.HandleAuthResponse(event, data);
+  //} else {
+   // ink_release_assert(!"Unknown authentication module event");
+  //}
+    /************************************************************************\
+     * pending_action=ACTION_RESULT_DONE only if Authentication step has    *
+     *                                   been done & authorization is left  *
+     * pending_action=NULL only if we have to set_next_state.               *
+     * pending_action=something else. Don't do anything.                    *
+     *                                One more callback is pending          *
+    \************************************************************************/
+
+  //if (authAdapter.stateChangeRequired()) {
+   // set_next_state();
+  //}
+// OLD AND UGLY: if (pending_action == NULL) {
+// OLD AND UGLY:        pending_action=NULL;
+// OLD AND UGLY:     } else if(pending_action == ACTION_RESULT_DONE) {
+// OLD AND UGLY:        pending_action=NULL;
+// OLD AND UGLY:     }
+
+  //return EVENT_DONE;
+//}
+
+///////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_icp_lookup()
+//
+///////////////////////////////////////////////////////////////
+int
+HttpSM::state_icp_lookup(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_icp_lookup, event);
+
+  // ua_entry is NULL for scheduled updates
+  ink_release_assert(ua_entry != NULL ||
+                     t_state.req_flavor == HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE ||
+                     t_state.req_flavor == HttpTransact::REQ_FLAVOR_REVPROXY);
+  pending_action = NULL;
+
+  switch (event) {
+  case ICP_LOOKUP_FOUND:
+
+    DebugSM("http", "ICP says ICP_LOOKUP_FOUND");
+    t_state.icp_lookup_success = true;
+    t_state.icp_ip_result = *(struct sockaddr_in *) data;
+
+/*
+*  Disable ICP loop detection since the Cidera network
+*    insists on trying to preload the cache from a
+*    a sibling cache.
+*
+*  // inhibit bad ICP looping behavior
+*  if (t_state.icp_ip_result.sin_addr.s_addr ==
+*    t_state.client_info.ip) {
+*      DebugSM("http","Loop in ICP config, bypassing...");
+*        t_state.icp_lookup_success = false;
+*  }
+*/
+    break;
+
+  case ICP_LOOKUP_FAILED:
+    DebugSM("http", "ICP says ICP_LOOKUP_FAILED");
+    t_state.icp_lookup_success = false;
+    break;
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  call_transact_and_set_next_state(HttpTransact::HandleICPLookup);
+
+  return 0;
+}
+
+/////////////////////////////////////////////////////////////////////////////////
+//  HttpSM::state_cache_open_write()
+//
+//  This state is set by set_next_state() for a cache open write
+//  (SERVER_READ_CACHE_WRITE)
+//
+//////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_cache_open_write(int event, void *data)
+{
+  STATE_ENTER(&HttpSM:state_cache_open_write, event);
+  milestones.cache_open_write_end = ink_get_hrtime();
+  pending_action = NULL;
+
+  switch (event) {
+  case CACHE_EVENT_OPEN_WRITE:
+    //////////////////////////////
+    // OPEN WRITE is successful //
+    //////////////////////////////
+    t_state.cache_info.write_lock_state = HttpTransact::CACHE_WL_SUCCESS;
+    break;
+
+  case CACHE_EVENT_OPEN_WRITE_FAILED: 
+    // Failed on the write lock and retrying the vector
+    //  for reading
+    t_state.cache_info.write_lock_state = HttpTransact::CACHE_WL_FAIL;
+    break;
+
+  case CACHE_EVENT_OPEN_READ:
+    // The write vector was locked and the cache_sm retried
+    // and got the read vector again.
+    cache_sm.cache_read_vc->get_http_info(&t_state.cache_info.object_read);
+    t_state.cache_info.is_ram_cache_hit =
+      t_state.http_config_param->record_tcp_mem_hit && (cache_sm.cache_read_vc)->is_ram_cache_hit();
+
+    ink_assert(t_state.cache_info.object_read != 0);
+    t_state.source = HttpTransact::SOURCE_CACHE;
+    // clear up CACHE_LOOKUP_MISS, let Freshness function decide
+    // hit status
+    t_state.cache_lookup_result = HttpTransact::CACHE_LOOKUP_NONE;
+    t_state.cache_info.write_lock_state = HttpTransact::CACHE_WL_READ_RETRY;
+    break;
+
+  case HTTP_TUNNEL_EVENT_DONE:
+    // In the case where we have issued a cache write for the
+    //  transformed copy, the tunnel from the origin server to
+    //  the transform may complete while we are waiting for
+    //  the cache write.  If this is the case, forward the event
+    //  to the transform read state as it will know how to
+    //  handle it
+    if (t_state.next_action == HttpTransact::SM_ACTION_CACHE_ISSUE_WRITE_TRANSFORM) {
+      state_common_wait_for_transform_read(&transform_info, &HttpSM::tunnel_handler, event, data);
+
+      return 0;
+    }
+    // Fallthrough
+  default:
+    ink_release_assert(0);
+  }
+
+  if (t_state.api_lock_url != HttpTransact::LOCK_URL_FIRST) {
+    if (event == CACHE_EVENT_OPEN_WRITE || event == CACHE_EVENT_OPEN_WRITE_FAILED) {
+      if (t_state.api_lock_url == HttpTransact::LOCK_URL_SECOND) {
+        t_state.api_lock_url = HttpTransact::LOCK_URL_ORIGINAL;
+        do_cache_prepare_action(second_cache_sm, t_state.cache_info.second_object_read, true);
+        return 0;
+      } else {
+        t_state.api_lock_url = HttpTransact::LOCK_URL_DONE;
+      }
+    } else if (event != CACHE_EVENT_OPEN_READ || t_state.api_lock_url != HttpTransact::LOCK_URL_SECOND)
+      t_state.api_lock_url = HttpTransact::LOCK_URL_QUIT;
+  }
+  // The write either succeeded or failed, notify transact
+  call_transact_and_set_next_state(NULL);
+
+  return 0;
+}
+
+inline void
+HttpSM::setup_cache_lookup_complete_api()
+{
+  t_state.api_next_action = HttpTransact::SM_ACTION_API_CACHE_LOOKUP_COMPLETE;
+  do_api_callout();
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::state_cache_open_read()
+//
+//  This state handles the result of CacheProcessor::open_read()
+//  that attempts to do cache lookup and open a particular cached
+//  object for reading.
+//
+//////////////////////////////////////////////////////////////////////////
+int
+HttpSM::state_cache_open_read(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_cache_open_read, event);
+  milestones.cache_open_read_end = ink_get_hrtime();
+
+  ink_assert(server_entry == NULL);
+  ink_assert(t_state.cache_info.object_read == 0);
+
+  switch (event) {
+  case CACHE_EVENT_OPEN_READ:
+    {
+      pending_action = NULL;
+
+      DebugSM("http", "[%" PRId64 "] cache_open_read - CACHE_EVENT_OPEN_READ", sm_id);
+
+      /////////////////////////////////
+      // lookup/open is successful. //
+      /////////////////////////////////
+      ink_assert(cache_sm.cache_read_vc != NULL);
+      t_state.source = HttpTransact::SOURCE_CACHE;
+
+      cache_sm.cache_read_vc->get_http_info(&t_state.cache_info.object_read);
+      t_state.cache_info.is_ram_cache_hit =
+        t_state.http_config_param->record_tcp_mem_hit && (cache_sm.cache_read_vc)->is_ram_cache_hit();
+
+      ink_assert(t_state.cache_info.object_read != 0);
+      call_transact_and_set_next_state(HttpTransact::HandleCacheOpenRead);
+      break;
+    }
+  case CACHE_EVENT_OPEN_READ_FAILED:
+    pending_action = NULL;
+
+    DebugSM("http", "[%" PRId64 "] cache_open_read - " "CACHE_EVENT_OPEN_READ_FAILED", sm_id);
+    DebugSM("http", "[state_cache_open_read] open read failed.");
+    // Inform HttpTransact somebody else is updating the document
+    // HttpCacheSM already waited so transact should go ahead.
+    if (data == (void *) -ECACHE_DOC_BUSY)
+      t_state.cache_lookup_result = HttpTransact::CACHE_LOOKUP_DOC_BUSY;
+    else
+      t_state.cache_lookup_result = HttpTransact::CACHE_LOOKUP_MISS;
+
+    ink_assert(t_state.transact_return_point == NULL);
+    t_state.transact_return_point = HttpTransact::HandleCacheOpenRead;
+    setup_cache_lookup_complete_api();
+    break;
+
+  default:
+    ink_release_assert("!Unknown event");
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpSM::main_handler(int event, void *data)
+{
+  ink_release_assert(magic == HTTP_SM_MAGIC_ALIVE);
+
+  HttpSMHandler jump_point = NULL;
+  ink_assert(reentrancy_count >= 0);
+  reentrancy_count++;
+
+  // Don't use the state enter macro since it uses history
+  //  space that we don't care about
+  DebugSM("http", "[%" PRId64 "] [HttpSM::main_handler, %s]", sm_id, HttpDebugNames::get_event_name(event));
+
+  HttpVCTableEntry *vc_entry = NULL;
+
+  if (data != NULL) {
+    // Only search the VC table if the event could have to
+    //  do with a VIO to save a few cycles
+
+    if (event < VC_EVENT_EVENTS_START + 100) {
+      vc_entry = vc_table.find_entry((VIO *) data);
+    }
+  }
+
+  if (vc_entry) {
+    jump_point = vc_entry->vc_handler;
+    ink_assert(jump_point != (HttpSMHandler)NULL);
+    ink_assert(vc_entry->vc != (VConnection *)NULL);
+    (this->*jump_point) (event, data);
+  } else {
+    ink_assert(default_handler != (HttpSMHandler)NULL);
+    (this->*default_handler) (event, data);
+  }
+
+  // The sub-handler signals when it is time for the state
+  //  machine to exit.  We can only exit if we are not reentrantly
+  //  called otherwise when the our call unwinds, we will be
+  //  running on a dead state machine
+  //
+  // Because of the need for an api shutdown hook, kill_this()
+  // is also reentrant.  As such, we don't want to decrement
+  // the reentrancy count until after we run kill_this()
+  //
+  if (terminate_sm == true && reentrancy_count == 1) {
+    kill_this();
+  } else {
+    reentrancy_count--;
+    ink_assert(reentrancy_count >= 0);
+  }
+
+  return (VC_EVENT_CONT);
+
+}
+
+// void HttpSM::tunnel_handler_post_or_put()
+//
+//   Handles the common cleanup tasks for Http post/put
+//   to prevent code duplication
+//
+void
+HttpSM::tunnel_handler_post_or_put(HttpTunnelProducer * p)
+{
+  ink_assert(p->vc_type == HT_HTTP_CLIENT);
+  HttpTunnelConsumer *c;
+
+  // If there is a post transform, remove it's entry from the State
+  //  Machine's VC table
+  //
+  // MUST NOT clear the vc pointer from post_transform_info
+  //    as this causes a double close of the transform vc in transform_cleanup
+  //
+  if (post_transform_info.vc != NULL) {
+    ink_assert(post_transform_info.entry->in_tunnel == true);
+    ink_assert(post_transform_info.vc == post_transform_info.entry->vc);
+    vc_table.cleanup_entry(post_transform_info.entry);
+    post_transform_info.entry = NULL;
+  }
+
+  switch (p->handler_state) {
+  case HTTP_SM_POST_SERVER_FAIL:
+    c = tunnel.get_consumer(server_entry->vc);
+    ink_assert(c->write_success == false);
+    break;
+  case HTTP_SM_POST_UA_FAIL:
+    // UA quit - shutdown the SM
+    ink_assert(p->read_success == false);
+    terminate_sm = true;
+    break;
+  case HTTP_SM_POST_SUCCESS:
+    // The post succeeded
+    ink_assert(p->read_success == true);
+    ink_assert(p->consumer_list.head->write_success == true);
+    tunnel.deallocate_buffers();
+    tunnel.reset();
+    // When the ua completed sending it's data we must have
+    //  removed it from the tunnel
+    ink_release_assert(ua_entry->in_tunnel == false);
+    server_entry->in_tunnel = false;
+
+    break;
+  default:
+    ink_release_assert(0);
+  }
+}
+
+// int HttpSM::tunnel_handler_post(int event, void* data)
+//
+//   Handles completion of any http request body tunnel
+//     Having 'post' in its name is a misnomer
+//
+int
+HttpSM::tunnel_handler_post(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_post, event);
+
+  ink_assert(event == HTTP_TUNNEL_EVENT_DONE);
+  ink_assert(data == &tunnel);
+  // The tunnel calls this when it is done
+
+  HttpTunnelProducer *p = tunnel.get_producer(ua_session);
+  int p_handler_state = p->handler_state;
+  tunnel_handler_post_or_put(p);
+
+  switch (p_handler_state) {
+  case HTTP_SM_POST_SERVER_FAIL:
+    handle_post_failure();
+    break;
+  case HTTP_SM_POST_UA_FAIL:
+    break;
+  case HTTP_SM_POST_SUCCESS:
+    // It's time to start reading the response
+    setup_server_read_response_header();
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_cache_fill(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_cache_fill, event);
+
+  ink_assert(event == HTTP_TUNNEL_EVENT_DONE);
+  ink_assert(data == &tunnel);
+
+  ink_release_assert(cache_sm.cache_write_vc);
+
+  tunnel.deallocate_buffers();
+  tunnel.deallocate_redirect_postdata_buffers();
+  tunnel.reset();
+
+  setup_server_transfer_to_cache_only();
+  tunnel.tunnel_run();
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_100_continue(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_100_continue, event);
+
+  ink_assert(event == HTTP_TUNNEL_EVENT_DONE);
+  ink_assert(data == &tunnel);
+
+  // We're done sending the 100 continue.  If we succeeded,
+  //   we set up to parse the next server response.  If we
+  //   failed, shutdown the state machine
+  HttpTunnelConsumer *c = tunnel.get_consumer(ua_session);
+
+  if (c->write_success) {
+    // Note: we must use destroy() here since clear()
+    //  does not free the memory from the header
+    t_state.hdr_info.client_response.destroy();
+    tunnel.deallocate_buffers();
+    tunnel.deallocate_redirect_postdata_buffers();
+    tunnel.reset();
+
+    if (server_entry->eos) {
+      // if the server closed while sending the
+      //    100 continue header, handle it here so we
+      //    don't assert later
+      DebugSM("http", "[%" PRId64 "] tunnel_handler_100_continue - server already " "closed, terminating connection", sm_id);
+
+      // Since 100 isn't a final (loggable) response header
+      //   kill the 100 continue header and create an empty one
+      t_state.hdr_info.server_response.destroy();
+      t_state.hdr_info.server_response.create(HTTP_TYPE_RESPONSE);
+      handle_server_setup_error(VC_EVENT_EOS, server_entry->read_vio);
+    } else {
+      setup_server_read_response_header();
+    }
+  } else {
+    terminate_sm = true;
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_push(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_push, event);
+
+  ink_assert(event == HTTP_TUNNEL_EVENT_DONE);
+  ink_assert(data == &tunnel);
+
+  // Check to see if the client is still around
+  HttpTunnelProducer *ua = tunnel.get_producer(ua_session);
+
+  if (!ua->read_success) {
+    // Client failed to send the body, it's gone.  Kill the
+    // state machine
+    terminate_sm = true;
+    return 0;
+  }
+
+  HttpTunnelConsumer *cache = ua->consumer_list.head;
+  ink_release_assert(cache->vc_type == HT_CACHE_WRITE);
+  bool cache_write_success = cache->write_success;
+
+  // Reset tunneling state since we need to send a response
+  //  to client as whether we succeeded
+  tunnel.deallocate_buffers();
+  tunnel.deallocate_redirect_postdata_buffers();
+  tunnel.reset();
+
+  if (cache_write_success) {
+    call_transact_and_set_next_state(HttpTransact::HandlePushTunnelSuccess);
+  } else {
+    call_transact_and_set_next_state(HttpTransact::HandlePushTunnelFailure);
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler, event);
+
+  ink_assert(event == HTTP_TUNNEL_EVENT_DONE);
+  ink_assert(data == &tunnel);
+  // The tunnel calls this when it is done
+  terminate_sm = true;
+
+  if (unlikely(t_state.is_websocket)) {
+    HTTP_DECREMENT_DYN_STAT(http_websocket_current_active_client_connections_stat);
+  }
+
+  return 0;
+}
+
+
+
+/****************************************************
+   TUNNELLING HANDLERS
+   ******************************************************/
+
+bool
+HttpSM::is_http_server_eos_truncation(HttpTunnelProducer * p)
+{
+
+  if ((p->do_dechunking || p->do_chunked_passthru) && p->chunked_handler.truncation) {
+    return true;
+  }
+
+  //////////////////////////////////////////////////////////////
+  // If we did not get or did not trust the origin server's   //
+  //  content-length, read_content_length is unset.  The      //
+  //  only way the end of the document is signaled is the     //
+  //  origin server closing the connection.  However, we      //
+  //  need to protect against the document getting truncated  //
+  //  because the origin server crashed.  The following       //
+  //  tabled outlines when we mark the server read as failed  //
+  //                                                          //
+  //    No C-L               :  read success                  //
+  //    Received byts < C-L  :  read failed (=> Cache Abort)  //
+  //    Received byts == C-L :  read success                  //
+  //    Received byts > C-L  :  read success                  //
+  //////////////////////////////////////////////////////////////
+  int64_t cl = t_state.hdr_info.server_response.get_content_length();
+
+  if (cl != UNDEFINED_COUNT && cl > server_response_body_bytes) {
+    DebugSM("http", "[%" PRId64 "] server eos after %" PRId64".  Expected %" PRId64, sm_id, cl, server_response_body_bytes);
+    return true;
+  } else {
+    return false;
+  }
+}
+
+int
+HttpSM::tunnel_handler_server(int event, HttpTunnelProducer * p)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_server, event);
+
+  milestones.server_close = ink_get_hrtime();
+
+  bool close_connection = false;
+
+  switch (event) {
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_ERROR:
+    t_state.squid_codes.log_code = SQUID_LOG_ERR_READ_TIMEOUT;
+    t_state.squid_codes.hier_code = SQUID_HIER_TIMEOUT_DIRECT;
+    /* fallthru */
+
+  case VC_EVENT_EOS:
+
+    switch (event) {
+    case VC_EVENT_INACTIVITY_TIMEOUT:
+      t_state.current.server->state = HttpTransact::INACTIVE_TIMEOUT;
+      break;
+    case VC_EVENT_ACTIVE_TIMEOUT:
+      t_state.current.server->state = HttpTransact::ACTIVE_TIMEOUT;
+      break;
+    case VC_EVENT_ERROR:
+      t_state.current.server->state = HttpTransact::CONNECTION_ERROR;
+      break;
+    case VC_EVENT_EOS:
+      t_state.current.server->state = HttpTransact::TRANSACTION_COMPLETE;
+      break;
+    }
+
+    close_connection = false;
+    ink_assert(p->vc_type == HT_HTTP_SERVER);
+
+    if (is_http_server_eos_truncation(p)) {
+      DebugSM("http", "[%" PRId64 "] [HttpSM::tunnel_handler_server] aborting HTTP tunnel due to server truncation", sm_id);
+      tunnel.chain_abort_all(p);
+      t_state.current.server->abort = HttpTransact::ABORTED;
+      t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE;
+      t_state.current.server->keep_alive = HTTP_NO_KEEPALIVE;
+      t_state.squid_codes.log_code = SQUID_LOG_ERR_READ_ERROR;
+    } else {
+      DebugSM("http", "[%" PRId64 "] [HttpSM::tunnel_handler_server] finishing HTTP tunnel", sm_id);
+      p->read_success = true;
+      t_state.current.server->abort = HttpTransact::DIDNOT_ABORT;
+      // Appending reason to a response without Content-Length will result in
+      // the reason string being written to the client and a bad CL when reading from cache.
+      // I didn't find anywhere this appended reason is being used, so commenting it out.
+      /*
+        if (t_state.negative_caching && p->bytes_read == 0) {
+        int reason_len;
+        const char *reason = t_state.hdr_info.server_response.reason_get(&reason_len);
+        if (reason == NULL)
+        tunnel.append_message_to_producer_buffer(p, "Negative Response", sizeof("Negative Response") - 1);
+        else
+        tunnel.append_message_to_producer_buffer(p, reason, reason_len);
+        }
+      */
+      tunnel.local_finish_all(p);
+    }
+    break;
+
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+  case VC_EVENT_READ_COMPLETE:
+    //
+    // The transfer completed successfully
+    //    If there is still data in the buffer, the server
+    //    sent to much indicating a failed transfer
+    p->read_success = true;
+    t_state.current.server->state = HttpTransact::TRANSACTION_COMPLETE;
+    t_state.current.server->abort = HttpTransact::DIDNOT_ABORT;
+
+    if (t_state.current.server->keep_alive == HTTP_KEEPALIVE &&
+        server_entry->eos == false && plugin_tunnel_type == HTTP_NO_PLUGIN_TUNNEL) {
+      close_connection = false;
+    } else {
+      close_connection = true;
+    }
+
+    if (p->do_dechunking || p->do_chunked_passthru) {
+      if (p->chunked_handler.truncation) {
+        tunnel.abort_cache_write_finish_others(p);
+        // We couldn't read all chunks successfully:
+        // Disable keep-alive.
+        t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE;
+        t_state.current.server->keep_alive = HTTP_NO_KEEPALIVE;
+      } else {
+        tunnel.local_finish_all(p);
+      }
+    }
+    break;
+
+  case HTTP_TUNNEL_EVENT_CONSUMER_DETACH:
+    // All consumers are prematurely gone.  Shutdown
+    //    the server connection
+    p->read_success = true;
+    t_state.current.server->state = HttpTransact::TRANSACTION_COMPLETE;
+    t_state.current.server->abort = HttpTransact::DIDNOT_ABORT;
+    close_connection = true;
+    break;
+
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_WRITE_READY:
+  case VC_EVENT_WRITE_COMPLETE:
+  default:
+    // None of these events should ever come our way
+    ink_assert(0);
+    break;
+  }
+
+  // turn off negative caching in case there are multiple server contacts
+  if (t_state.negative_caching)
+    t_state.negative_caching = false;
+
+  // If we had a ground fill, check update our status
+  if (background_fill == BACKGROUND_FILL_STARTED) {
+    background_fill = p->read_success ? BACKGROUND_FILL_COMPLETED : BACKGROUND_FILL_ABORTED;
+    HTTP_DECREMENT_DYN_STAT(http_background_fill_current_count_stat);
+  }
+  // We handled the event.  Now either shutdown the connection or
+  //   setup it up for keep-alive
+  ink_assert(server_entry->vc == p->vc);
+  ink_assert(p->vc_type == HT_HTTP_SERVER);
+  ink_assert(p->vc == server_session);
+
+  if (close_connection) {
+    p->vc->do_io_close();
+    p->read_vio = NULL;
+    /* TS-1424: if we're outbound transparent and using the client
+       source port for the outbound connection we must effectively
+       propagate server closes back to the client. Part of that is
+       disabling KeepAlive if the server closes.
+    */
+    if (ua_session && ua_session->f_outbound_transparent && t_state.http_config_param->use_client_source_port) {
+      t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE;
+    }
+  } else {
+    server_session->attach_hostname(t_state.current.server->name);
+    server_session->server_trans_stat--;
+    HTTP_DECREMENT_DYN_STAT(http_current_server_transactions_stat);
+
+    // If the option to attach the server session to the client session is set
+    // and if the client is still around and the client is keep-alive, attach the
+    // server session to so the next ka request can use it.  Server sessions will
+    // be placed into the shared pool if the next incoming request is for a different
+    // origin server
+    if (t_state.http_config_param->attach_server_session_to_client == 1 &&
+        ua_session && t_state.client_info.keep_alive == HTTP_KEEPALIVE) {
+      Debug("http", "attaching server session to the client");
+      ua_session->attach_server_session(server_session);
+    } else {
+      // Release the session back into the shared session pool
+      server_session->release();
+    }
+  }
+
+  return 0;
+}
+
+// int HttpSM::tunnel_handler_100_continue_ua(int event, HttpTunnelConsumer* c)
+//
+//     Used for tunneling the 100 continue response.  The tunnel
+//       should not close or release the user agent unless there is
+//       an error since the real response is yet to come
+//
+int
+HttpSM::tunnel_handler_100_continue_ua(int event, HttpTunnelConsumer * c)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_100_continue_ua, event);
+
+  ink_assert(c->vc == ua_session);
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    ua_entry->eos = true;
+    // FALL-THROUGH
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_ERROR:
+    set_ua_abort(HttpTransact::ABORTED, event);
+    c->vc->do_io_close();
+    break;
+  case VC_EVENT_WRITE_COMPLETE:
+    // mark the vc as no longer in tunnel
+    //   so we don't get hosed if the ua abort before
+    //   real response header is received
+    ua_entry->in_tunnel = false;
+    c->write_success = true;
+  }
+
+  return 0;
+}
+
+bool
+HttpSM::is_bg_fill_necessary(HttpTunnelConsumer * c)
+{
+  ink_assert(c->vc_type == HT_HTTP_CLIENT);
+
+  if (c->producer->alive && // something there to read
+      server_entry && server_entry->vc && // from an origin server
+      c->producer->num_consumers > 1  // with someone else reading it
+    ) {
+
+    // If threshold is 0.0 or negative then do background
+    //   fill regardless of the content length.  Since this
+    //   is floating point just make sure the number is near zero
+    if (t_state.txn_conf->background_fill_threshold <= 0.001) {
+      return true;
+    }
+
+    int64_t ua_cl = t_state.hdr_info.client_response.get_content_length();
+
+    if (ua_cl > 0) {
+      int64_t ua_body_done = c->bytes_written - client_response_hdr_bytes;
+      float pDone = (float) ua_body_done / ua_cl;
+
+      // If we got a good content length.  Check to make sure that we haven't already
+      //  done more the content length since that would indicate the content-length
+      //  is bogus.  If we've done more than the threshold, continue the background fill
+      if (pDone <= 1.0 && pDone > t_state.txn_conf->background_fill_threshold) {
+        return true;
+      } else {
+        DebugSM("http", "[%" PRId64 "] no background.  Only %%%f of %%%f done [%" PRId64 " / %" PRId64" ]", sm_id, pDone, t_state.txn_conf->background_fill_threshold, ua_body_done, ua_cl);
+      }
+
+    }
+  }
+
+  return false;
+}
+
+int
+HttpSM::tunnel_handler_ua(int event, HttpTunnelConsumer * c)
+{
+  bool close_connection = true;
+  HttpTunnelProducer *p = NULL;
+  HttpTunnelConsumer *selfc = NULL;
+
+  STATE_ENTER(&HttpSM::tunnel_handler_ua, event);
+  ink_assert(c->vc == ua_session);
+  milestones.ua_close = ink_get_hrtime();
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    ua_entry->eos = true;
+    // FALL-THROUGH
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_ERROR:
+
+    // The user agent died or aborted.  Check to
+    //  see if we should setup a background fill
+    set_ua_abort(HttpTransact::ABORTED, event);
+
+    if (is_bg_fill_necessary(c)) {
+      DebugSM("http", "[%" PRId64 "] Initiating background fill", sm_id);
+      background_fill = BACKGROUND_FILL_STARTED;
+      HTTP_INCREMENT_DYN_STAT(http_background_fill_current_count_stat);
+
+      // There is another consumer (cache write) so
+      //  detach the user agent
+      ink_assert(server_entry->vc == server_session);
+      ink_assert(c->is_downstream_from(server_session));
+      server_session->get_netvc()->
+        set_active_timeout(HRTIME_SECONDS(t_state.txn_conf->background_fill_active_timeout));
+    } else {
+      // No background fill
+      p = c->producer;
+      tunnel.chain_abort_all(c->producer);
+      selfc = p->self_consumer;
+      if (selfc) {
+        // This is the case where there is a transformation between ua and os
+        p = selfc->producer;
+        // if producer is the cache or OS, close the producer.
+        // Otherwise in case of large docs, producer iobuffer gets filled up,
+        // waiting for a consumer to consume data and the connection is never closed.
+        if (p->alive &&
+            ((p->vc_type == HT_CACHE_READ) || (p->vc_type == HT_HTTP_SERVER))) {
+          tunnel.chain_abort_all(p);
+        }
+      }
+    }
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    c->write_success = true;
+    t_state.client_info.abort = HttpTransact::DIDNOT_ABORT;
+    if (t_state.client_info.keep_alive == HTTP_KEEPALIVE) {
+      if (t_state.www_auth_content != HttpTransact::CACHE_AUTH_SERVE || ua_session->get_bound_ss()) {
+        // successful keep-alive
+        close_connection = false;
+      }
+      // else { the authenticated server connection (cache
+      // authenticated feature) closed during the serve-from-cache.
+      // We want the client to issue a new connection for the
+      // session based authenticated mechanism like NTLM, instead
+      // of still using the existing client connection. }
+    }
+    break;
+  case VC_EVENT_WRITE_READY:
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+  default:
+    // None of these events should ever come our way
+    ink_assert(0);
+    break;
+  }
+
+  client_response_body_bytes = c->bytes_written - client_response_hdr_bytes;
+
+  if (client_response_body_bytes < 0)
+    client_response_body_bytes = 0;
+
+  // attribute the size written to the client from various sources
+  // NOTE: responses that go through a range transform are attributed
+  // to their original sources
+  // all other transforms attribute the total number of input bytes
+  // to a source in HttpSM::tunnel_handler_transform_write
+  //
+  HttpTransact::Source_t original_source = t_state.source;
+  if (HttpTransact::SOURCE_TRANSFORM == original_source &&
+      t_state.range_setup != HttpTransact::RANGE_NONE) {
+    original_source = t_state.pre_transform_source;
+  }
+
+  switch (original_source) {
+  case HttpTransact::SOURCE_HTTP_ORIGIN_SERVER:
+    server_response_body_bytes = client_response_body_bytes;
+    break;
+  case HttpTransact::SOURCE_CACHE:
+    cache_response_body_bytes = client_response_body_bytes;
+    break;
+  default:
+    break;
+  }
+
+  ink_assert(ua_entry->vc == c->vc);
+  if (close_connection) {
+    // If the client could be pipelining or is doing a POST, we need to
+    //   set the ua_session into half close mode
+    if ((t_state.method == HTTP_WKSIDX_POST || t_state.client_info.pipeline_possible == true)
+        && event == VC_EVENT_WRITE_COMPLETE) {
+      ua_session->set_half_close_flag();
+    }
+
+    ua_session->do_io_close();
+    ua_session = NULL;
+  } else {
+    ink_assert(ua_buffer_reader != NULL);
+    ua_session->release(ua_buffer_reader);
+    ua_buffer_reader = NULL;
+    ua_session = NULL;
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_ua_push(int event, HttpTunnelProducer * p)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_ua_push, event);
+
+  pushed_response_body_bytes += p->bytes_read;
+  client_request_body_bytes += p->bytes_read;
+
+  switch (event) {
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_EOS:
+    // Transfer terminated.  Bail on the cache write.
+    t_state.client_info.abort = HttpTransact::ABORTED;
+    p->vc->do_io_close(EHTTP_ERROR);
+    p->read_vio = NULL;
+    tunnel.chain_abort_all(p);
+    break;
+
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+  case VC_EVENT_READ_COMPLETE:
+    //
+    // The transfer completed successfully
+    p->read_success = true;
+    ua_entry->in_tunnel = false;
+    break;
+
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_WRITE_READY:
+  case VC_EVENT_WRITE_COMPLETE:
+  default:
+    // None of these events should ever come our way
+    ink_assert(0);
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_cache_read(int event, HttpTunnelProducer * p)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_cache_read, event);
+
+  switch (event) {
+  case VC_EVENT_ERROR:
+  case VC_EVENT_EOS:
+    ink_assert(t_state.cache_info.object_read->valid());
+    if (t_state.cache_info.object_read->object_size_get() != INT64_MAX || event == VC_EVENT_ERROR) {
+      // Abnormal termination
+      t_state.squid_codes.log_code = SQUID_LOG_TCP_SWAPFAIL;
+      p->vc->do_io_close(EHTTP_ERROR);
+      p->read_vio = NULL;
+      tunnel.chain_abort_all(p);
+      HTTP_INCREMENT_TRANS_STAT(http_cache_read_errors);
+      break;
+    } else {
+      tunnel.local_finish_all(p);
+      // fall through for the case INT64_MAX read with VC_EVENT_EOS
+      // callback (read successful)
+    }
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+  case HTTP_TUNNEL_EVENT_CONSUMER_DETACH:
+    p->read_success = true;
+    p->vc->do_io_close();
+    p->read_vio = NULL;
+    break;
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+  return 0;
+}
+
+
+int
+HttpSM::tunnel_handler_cache_write(int event, HttpTunnelConsumer * c)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_cache_write, event);
+
+  HttpTransact::CacheWriteStatus_t * status_ptr =
+    (c->producer->vc_type == HT_TRANSFORM) ?
+    &t_state.cache_info.transform_write_status : &t_state.cache_info.write_status;
+
+  switch (event) {
+  case VC_EVENT_ERROR:
+  case VC_EVENT_EOS:
+    // Abnormal termination
+    *status_ptr = HttpTransact::CACHE_WRITE_ERROR;
+    c->write_vio = NULL;
+    c->vc->do_io_close(EHTTP_ERROR);
+
+    HTTP_INCREMENT_TRANS_STAT(http_cache_write_errors);
+    DebugSM("http", "[%" PRId64 "] aborting cache write due %s event from cache", sm_id, HttpDebugNames::get_event_name(event));
+    // abort the producer if the cache_writevc is the only consumer.
+    if (c->producer->alive && c->producer->num_consumers == 1)
+      tunnel.chain_abort_all(c->producer);
+    break;
+  case VC_EVENT_WRITE_COMPLETE:
+    // if we've never initiated a cache write
+    //   abort the cache since it's finicky about a close
+    //   in this case.  This case can only occur
+    //   we got a truncated header from the origin server
+    //   but decided to accept it anyways
+    if (c->write_vio == NULL) {
+      *status_ptr = HttpTransact::CACHE_WRITE_ERROR;
+      c->write_success = false;
+      c->vc->do_io_close(EHTTP_ERROR);
+    } else {
+      *status_ptr = HttpTransact::CACHE_WRITE_COMPLETE;
+      c->write_success = true;
+      c->write_vio = c->vc->do_io(VIO::CLOSE);
+    }
+    break;
+  default:
+    // All other events indicate problems
+    ink_assert(0);
+    break;
+  }
+
+  HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_post_ua(int event, HttpTunnelProducer * p)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_post_ua, event);
+  client_request_body_bytes = p->init_bytes_done + p->bytes_read;
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    // My reading of spec says that user agents can not terminate
+    //  posts with a half close so this is an error
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    //  Did not complete post tunnling.  Abort the
+    //   server and close the ua
+    p->handler_state = HTTP_SM_POST_UA_FAIL;
+    tunnel.chain_abort_all(p);
+    p->read_vio = NULL;
+    p->vc->do_io_close(EHTTP_ERROR);
+    set_ua_abort(HttpTransact::ABORTED, event);
+
+    // the in_tunnel status on both the ua & and
+    //   it's consumer must already be set to true.  Previously
+    //   we were setting it again to true but incorrectly in
+    //   the case of a transform
+    hsm_release_assert(ua_entry->in_tunnel == true);
+    if (p->consumer_list.head->vc_type == HT_TRANSFORM) {
+      hsm_release_assert(post_transform_info.entry->in_tunnel == true);
+    } else {
+      hsm_release_assert(server_entry->in_tunnel == true);
+    }
+    break;
+
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+    // We have completed reading POST data from client here.
+    // It's time to free MIOBuffer of 100 Continue's response now,
+    // althought this is a little late.
+    if (t_state.http_config_param->send_100_continue_response) {
+      free_MIOBuffer(ua_entry->write_buffer);
+      ua_entry->write_buffer = NULL;
+    }
+
+    // Completed successfully
+    if (t_state.txn_conf->keep_alive_post_out == 0) {
+      // don't share the session if keep-alive for post is not on
+      set_server_session_private(true);
+    }
+
+    p->handler_state = HTTP_SM_POST_SUCCESS;
+    p->read_success = true;
+    ua_entry->in_tunnel = false;
+
+    if (p->do_dechunking || p->do_chunked_passthru) {
+      if (p->chunked_handler.truncation) {
+        tunnel.abort_cache_write_finish_others(p);
+      } else {
+        tunnel.local_finish_all(p);
+      }
+    }
+    // Initiate another read to watch catch aborts and
+    //   timeouts
+    ua_entry->vc_handler = &HttpSM::state_watch_for_client_abort;
+    ua_entry->read_vio = p->vc->do_io_read(this, INT64_MAX, ua_buffer_reader->mbuf);
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  return 0;
+}
+
+//YTS Team, yamsat Plugin
+//Tunnel handler to deallocate the tunnel buffers and
+//set redirect_in_process=false
+//Copy partial POST data to buffers. Check for the various parameters including
+//the maximum configured post data size
+int
+HttpSM::tunnel_handler_for_partial_post(int event, void * /* data ATS_UNUSED */)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_for_partial_post, event);
+  tunnel.deallocate_buffers();
+  tunnel.reset();
+
+  tunnel.allocate_redirect_postdata_producer_buffer();
+
+  t_state.redirect_info.redirect_in_process = false;
+
+  if (post_failed) {
+    post_failed = false;
+    handle_post_failure();
+  } else
+    do_setup_post_tunnel(HTTP_SERVER_VC);
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_post_server(int event, HttpTunnelConsumer * c)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_post_server, event);
+
+  server_request_body_bytes = c->bytes_written;
+
+  switch (event) {
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    //  Did not complete post tunneling
+    //
+    //    In the http case, we don't want to close
+    //    the connection because the
+    //    destroys the header buffer which may
+    //    a response even though the tunnel failed.
+
+    // Shutdown both sides of the connection.  This prevents us
+    //  from getting any further events and signals to client
+    //  that POST data will not be forwarded to the server.  Doing
+    //  shutdown on the write side will likely generate a TCP
+    //  reset to the client but if the proxy wasn't here this is
+    //  exactly what would happen.
+    // we should wait to shutdown read side of the
+    // client to prevent sending a reset
+    server_entry->eos = true;
+    c->vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+
+    // We may be reading from a transform.  In that case, we
+    //   want to close the transform
+    HttpTunnelProducer *ua_producer;
+    if (c->producer->vc_type == HT_TRANSFORM) {
+      if (c->producer->handler_state == HTTP_SM_TRANSFORM_OPEN) {
+        ink_assert(c->producer->vc == post_transform_info.vc);
+        c->producer->vc->do_io_close();
+        c->producer->alive = false;
+        c->producer->self_consumer->alive = false;
+      }
+      ua_producer = c->producer->self_consumer->producer;
+    } else {
+      ua_producer = c->producer;
+    }
+    ink_assert(ua_producer->vc_type == HT_HTTP_CLIENT);
+    ink_assert(ua_producer->vc == ua_session);
+    ink_assert(ua_producer->vc == ua_entry->vc);
+
+    // Before shutting down, initiate another read
+    //  on the user agent in order to get timeouts
+    //  coming to the state machine and not the tunnel
+    ua_entry->vc_handler = &HttpSM::state_watch_for_client_abort;
+
+    //YTS Team, yamsat Plugin
+    //When event is VC_EVENT_ERROR,and when redirection is enabled
+    //do not shut down the client read
+    if (enable_redirection) {
+      if (ua_producer->vc_type == HT_STATIC && event != VC_EVENT_ERROR && event != VC_EVENT_EOS) {
+        ua_entry->read_vio = ua_producer->vc->do_io_read(this, INT64_MAX, c->producer->read_buffer);
+        //ua_producer->vc->do_io_shutdown(IO_SHUTDOWN_READ);
+        t_state.client_info.pipeline_possible = false;
+      } else {
+        if (ua_producer->vc_type == HT_STATIC && t_state.redirect_info.redirect_in_process) {
+          post_failed = true;
+        }
+      }
+    } else {
+      ua_entry->read_vio = ua_producer->vc->do_io_read(this, INT64_MAX, c->producer->read_buffer);
+      // we should not shutdown read side of the client here to prevent sending a reset
+      //ua_producer->vc->do_io_shutdown(IO_SHUTDOWN_READ);
+      t_state.client_info.pipeline_possible = false;
+    }                           //end of added logic
+
+    // We want to shutdown the tunnel here and see if there
+    //   is a response on from the server.  Mark the user
+    //   agent as down so that tunnel concludes.
+    ua_producer->alive = false;
+    ua_producer->handler_state = HTTP_SM_POST_SERVER_FAIL;
+    ink_assert(tunnel.is_tunnel_alive() == false);
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    // Completed successfully
+    c->write_success = true;
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_ssl_producer(int event, HttpTunnelProducer * p)
+{
+
+  STATE_ENTER(&HttpSM::tunnel_handler_ssl_producer, event);
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    // The write side of this connection is still alive
+    //  so half-close the read
+    if (p->self_consumer->alive) {
+      p->vc->do_io_shutdown(IO_SHUTDOWN_READ);
+      tunnel.local_finish_all(p);
+      break;
+    }
+    // FALL THROUGH - both sides of the tunnel are dea
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    // The other side of the connection is either already dead
+    //   or rendered inoperative by the error on the connection
+    //   Note: use tunnel close vc so the tunnel knows we are
+    //    nuking the of the connection as well
+    tunnel.close_vc(p);
+    tunnel.local_finish_all(p);
+
+    // Because we've closed the net vc this error came in, it's write
+    //  direction is now dead as well.  If that side still being fed data,
+    //  we need to kill that pipe as well
+    if (p->self_consumer->producer->alive) {
+      p->self_consumer->producer->alive = false;
+      if (p->self_consumer->producer->self_consumer->alive) {
+        p->self_consumer->producer->vc->do_io_shutdown(IO_SHUTDOWN_READ);
+      } else {
+        tunnel.close_vc(p->self_consumer->producer);
+      }
+    }
+    break;
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+    // We should never get these event since we don't know
+    //  how long the stream is
+  default:
+    ink_release_assert(0);
+  }
+
+  // Update stats
+  switch (p->vc_type) {
+  case HT_HTTP_SERVER:
+    server_response_body_bytes += p->bytes_read;
+    break;
+  case HT_HTTP_CLIENT:
+    client_request_body_bytes += p->bytes_read;
+    break;
+  default:
+    // Covered here:
+    // HT_CACHE_READ, HT_CACHE_WRITE,
+    // HT_TRANSFORM, HT_STATIC.
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_ssl_consumer(int event, HttpTunnelConsumer * c)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_ssl_consumer, event);
+
+  switch (event) {
+  case VC_EVENT_ERROR:
+  case VC_EVENT_EOS:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    // we need to mark the producer dead
+    // otherwise it can stay alive forever.
+    if (c->producer->alive) {
+      c->producer->alive = false;
+      if (c->producer->self_consumer->alive) {
+        c->producer->vc->do_io_shutdown(IO_SHUTDOWN_READ);
+      } else {
+        tunnel.close_vc(c->producer);
+      }
+    }
+    // Since we are changing the state of the self_producer
+    //  we must have the tunnel shutdown the vc
+    tunnel.close_vc(c);
+    tunnel.local_finish_all(c->self_producer);
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    // If we get this event, it means that the producer
+    //  has finished and we wrote the remaining data
+    //  to the consumer
+    //
+    // If the read side of this connection has not yet
+    //  closed, do a write half-close and then wait for
+    //  read side to close so that we don't cut off
+    //  pipelined responses with TCP resets
+    //
+    ink_assert(c->producer->alive == false);
+    c->write_success = true;
+    if (c->self_producer->alive == true) {
+      c->vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+      if (!c->producer->alive) {
+        tunnel.close_vc(c);
+        tunnel.local_finish_all(c->self_producer);
+        break;
+      }
+    } else {
+      c->vc->do_io_close();
+    }
+    break;
+
+  default:
+    ink_release_assert(0);
+  }
+
+  // Update stats
+  switch (c->vc_type) {
+  case HT_HTTP_SERVER:
+    server_request_body_bytes += c->bytes_written;
+    break;
+  case HT_HTTP_CLIENT:
+    client_response_body_bytes += c->bytes_written;
+    break;
+  default:
+    // Handled here:
+    // HT_CACHE_READ, HT_CACHE_WRITE, HT_TRANSFORM,
+    // HT_STATIC
+    break;
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_transform_write(int event, HttpTunnelConsumer * c)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_transform_write, event);
+
+  HttpTransformInfo *i;
+
+  // Figure out if this the request or response transform
+  // : use post_transform_info.entry because post_transform_info.vc
+  // is not set to NULL after the post transform is done.
+  if (post_transform_info.entry) {
+    i = &post_transform_info;
+    ink_assert(c->vc == i->entry->vc);
+  } else {
+    i = &transform_info;
+    ink_assert(c->vc == i->vc);
+    ink_assert(c->vc == i->entry->vc);
+  }
+
+  switch (event) {
+  case VC_EVENT_ERROR:
+    // Transform error
+    tunnel.chain_abort_all(c->producer);
+    c->handler_state = HTTP_SM_TRANSFORM_FAIL;
+    c->vc->do_io_close(EHTTP_ERROR);
+    break;
+  case VC_EVENT_EOS:
+    //   It possible the transform quit
+    //   before the producer finished.  If this is true
+    //   we need shut  down the producer if it doesn't
+    //   have other consumers to serve or else it will
+    //   fill up buffer and get hung
+    if (c->producer->alive && c->producer->num_consumers == 1) {
+      // Send a tunnel detach event to the producer
+      //   to shut it down but indicates it should not abort
+      //   downstream (on the other side of the transform)
+      //   cache writes
+      tunnel.producer_handler(HTTP_TUNNEL_EVENT_CONSUMER_DETACH, c->producer);
+    }
+    // FALLTHROUGH
+  case VC_EVENT_WRITE_COMPLETE:
+    // write to transform complete - shutdown the write side
+    c->write_success = true;
+    c->vc->do_io_shutdown(IO_SHUTDOWN_WRITE);
+
+    // If the read side has not started up yet, then the
+    //  this transform_vc is no longer owned by the tunnel
+    if (c->self_producer == NULL) {
+      i->entry->in_tunnel = false;
+    } else if (c->self_producer->alive == false) {
+      // The read side of the Transform
+      //   has already completed (possible when the
+      //   transform intentionally truncates the response).
+      //   So close it
+      c->vc->do_io(VIO::CLOSE);
+    }
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  // attribute the size written to the transform from various sources
+  // NOTE: the range transform is excluded from this accounting and
+  // is instead handled in HttpSM::tunnel_handler_ua
+  //
+  // the reasoning is that the range transform is internal functionality
+  // in support of HTTP 1.1 compliance, therefore part of "normal" operation
+  // all other transforms are plugin driven and the difference between
+  // source data and final data should represent the transformation delta
+  //
+  if (t_state.range_setup == HttpTransact::RANGE_NONE) {
+    switch (t_state.pre_transform_source) {
+    case HttpTransact::SOURCE_HTTP_ORIGIN_SERVER:
+      server_response_body_bytes = client_response_body_bytes;
+      break;
+    case HttpTransact::SOURCE_CACHE:
+      cache_response_body_bytes = client_response_body_bytes;
+      break;
+    default:
+      break;
+    }
+  }
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_transform_read(int event, HttpTunnelProducer * p)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_transform_read, event);
+
+  ink_assert(p->vc == transform_info.vc || p->vc == post_transform_info.vc);
+
+  switch (event) {
+  case VC_EVENT_ERROR:
+    // Transform error
+    tunnel.chain_abort_all(p->self_consumer->producer);
+    break;
+  case VC_EVENT_EOS:
+    // If we did not get enough data from the transform abort the
+    //    cache write otherwise fallthrough to the transform
+    //    completing successfully
+    if (t_state.hdr_info.transform_response_cl != HTTP_UNDEFINED_CL &&
+        p->read_vio->nbytes < t_state.hdr_info.transform_response_cl) {
+      tunnel.abort_cache_write_finish_others(p);
+      break;
+    }
+    // FALL-THROUGH
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+    // Transform complete
+    p->read_success = true;
+    tunnel.local_finish_all(p);
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  // it's possible that the write side of the
+  //  transform hasn't detached yet.  If it is still alive,
+  //  don't close the transform vc
+  if (p->self_consumer->alive == false) {
+    p->vc->do_io_close();
+  }
+  p->handler_state = HTTP_SM_TRANSFORM_CLOSED;
+
+  return 0;
+}
+
+int
+HttpSM::tunnel_handler_plugin_agent(int event, HttpTunnelConsumer * c)
+{
+  STATE_ENTER(&HttpSM::tunnel_handler_plugin_client, event);
+
+  switch (event) {
+  case VC_EVENT_ERROR:
+    c->vc->do_io_close(EHTTP_ERROR); // close up
+    // Signal producer if we're the last consumer.
+    if (c->producer->alive && c->producer->num_consumers == 1) {
+      tunnel.producer_handler(HTTP_TUNNEL_EVENT_CONSUMER_DETACH, c->producer);
+    }
+    break;
+  case VC_EVENT_EOS:
+    if (c->producer->alive && c->producer->num_consumers == 1) {
+      tunnel.producer_handler(HTTP_TUNNEL_EVENT_CONSUMER_DETACH, c->producer);
+    }
+    // FALLTHROUGH
+  case VC_EVENT_WRITE_COMPLETE:
+    c->write_success = true;
+    c->vc->do_io(VIO::CLOSE);
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  return 0;
+}
+
+int
+HttpSM::state_srv_lookup(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_srv_lookup, event);
+
+  ink_assert(t_state.req_flavor == HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_REVPROXY || ua_entry->vc != NULL);
+
+  switch (event) {
+  case EVENT_SRV_LOOKUP:
+    pending_action = NULL;
+    process_srv_info((HostDBInfo *) data);
+    break;
+  case EVENT_SRV_IP_REMOVED:
+    ink_assert(!"Unexpected SRV event from HostDB. What up, Eric?");
+    break;
+  default:
+    ink_assert(!"Unexpected event");
+  }
+
+  return 0;
+}
+
+int
+HttpSM::state_remap_request(int event, void * /* data ATS_UNUSED */)
+{
+  STATE_ENTER(&HttpSM::state_remap_request, event);
+
+  switch (event) {
+  case EVENT_REMAP_ERROR:
+    {
+      ink_assert(!"this doesn't happen");
+      pending_action = NULL;
+      Error("error remapping request [see previous errors]");
+      call_transact_and_set_next_state(HttpTransact::HandleRequest);    //HandleRequest skips EndRemapRequest
+      break;
+    }
+
+  case EVENT_REMAP_COMPLETE:
+    {
+      pending_action = NULL;
+      DebugSM("url_rewrite", "completed processor-based remapping request for [%" PRId64 "]", sm_id);
+      t_state.url_remap_success = remapProcessor.finish_remap(&t_state);
+      call_transact_and_set_next_state(NULL);
+      break;
+    }
+
+  default:
+    ink_assert("Unexpected event inside state_remap_request");
+    break;
+  }
+
+  return 0;
+}
+
+void
+HttpSM::do_remap_request(bool run_inline)
+{
+  DebugSM("http_seq", "[HttpSM::do_remap_request] Remapping request");
+  DebugSM("url_rewrite", "Starting a possible remapping for request [%" PRId64 "]", sm_id);
+
+  bool ret = remapProcessor.setup_for_remap(&t_state);
+
+  // Preserve pristine url before remap
+  // This needs to be done after the Host: header for reverse proxy is added to the url, but
+  // before we return from this function for forward proxy
+  t_state.pristine_url.create(t_state.hdr_info.client_request.url_get()->m_heap);
+  t_state.pristine_url.copy(t_state.hdr_info.client_request.url_get());
+
+  if (!ret) {
+    DebugSM("url_rewrite", "Could not find a valid remapping entry for this request [%" PRId64 "]", sm_id);
+    if (!run_inline) {
+      handleEvent(EVENT_REMAP_COMPLETE, NULL);
+    }
+    return;
+  }
+
+  DebugSM("url_rewrite", "Found a remap map entry for [%" PRId64 "], attempting to remap request and call any plugins", sm_id);
+  Action *remap_action_handle = remapProcessor.perform_remap(this, &t_state);
+
+  if (remap_action_handle != ACTION_RESULT_DONE) {
+    DebugSM("url_rewrite", "Still more remapping needed for [%" PRId64 "]", sm_id);
+    ink_assert(!pending_action);
+    historical_action = pending_action = remap_action_handle;
+  }
+
+  return;
+}
+
+void
+HttpSM::do_hostdb_lookup()
+{
+/*
+    //////////////////////////////////////////
+    // if a connection to the origin server //
+    // is currently opened --- close it.    //
+    //////////////////////////////////////////
+    if (m_origin_server_vc != 0) {
+   origin_server_close(CLOSE_CONNECTION);
+   if (m_response_body_tunnel_buffer_.buf() != 0)
+       m_response_body_tunnel_buffer_.reset();
+    }
+    */
+
+  ink_assert(t_state.dns_info.lookup_name != NULL);
+  ink_assert(pending_action == NULL);
+
+  milestones.dns_lookup_begin = ink_get_hrtime();
+  bool use_srv_records = t_state.srv_lookup;
+
+  if (use_srv_records) {
+    char d[MAXDNAME];
+
+    memcpy(d, "_http._tcp.", 11); // don't copy '\0'
+    ink_strlcpy(d + 11, t_state.server_info.name, sizeof(d) - 11 ); // all in the name of performance!
+
+    DebugSM("dns_srv", "Beginning lookup of SRV records for origin %s", d);
+
+    HostDBProcessor::Options opt;
+    if (t_state.api_txn_dns_timeout_value != -1)
+      opt.timeout = t_state.api_txn_dns_timeout_value;
+    Action *srv_lookup_action_handle =
+      hostDBProcessor.getSRVbyname_imm(this, (process_srv_info_pfn) & HttpSM::process_srv_info, d, 0, opt);
+
+    if (srv_lookup_action_handle != ACTION_RESULT_DONE) {
+      ink_assert(!pending_action);
+      pending_action = srv_lookup_action_handle;
+      historical_action = pending_action;
+    } else {
+      char *host_name = t_state.dns_info.srv_lookup_success ? t_state.dns_info.srv_hostname : t_state.dns_info.lookup_name;
+      opt.port = t_state.dns_info.srv_lookup_success ? t_state.dns_info.srv_port : t_state.server_info.port;
+      opt.flags = (t_state.cache_info.directives.does_client_permit_dns_storing)
+            ? HostDBProcessor::HOSTDB_DO_NOT_FORCE_DNS
+            : HostDBProcessor::HOSTDB_FORCE_DNS_RELOAD
+          ;
+      opt.timeout = (t_state.api_txn_dns_timeout_value != -1) ? t_state.api_txn_dns_timeout_value : 0;
+      opt.host_res_style = ua_session->host_res_style;
+
+      Action *dns_lookup_action_handle = hostDBProcessor.getbyname_imm(this,
+                                                                 (process_hostdb_info_pfn) & HttpSM::
+                                                                 process_hostdb_info,
+                                                                 host_name, 0,
+                                                                 opt);
+      if (dns_lookup_action_handle != ACTION_RESULT_DONE) {
+        ink_assert(!pending_action);
+        pending_action = dns_lookup_action_handle;
+        historical_action = pending_action;
+      } else {
+        call_transact_and_set_next_state(NULL);
+      }
+    }
+    return;
+  } else {                      /* we aren't using SRV stuff... */
+    DebugSM("http_seq", "[HttpSM::do_hostdb_lookup] Doing DNS Lookup");
+
+    // If there is not a current server, we must be looking up the origin
+    //  server at the beginning of the transaction
+    int server_port = t_state.current.server ? t_state.current.server->port : t_state.server_info.port;
+
+    if (t_state.api_txn_dns_timeout_value != -1) {
+      DebugSM("http_timeout", "beginning DNS lookup. allowing %d mseconds for DNS lookup",
+            t_state.api_txn_dns_timeout_value);
+    }
+
+    HostDBProcessor::Options opt;
+    opt.port = server_port;
+    opt.flags = (t_state.cache_info.directives.does_client_permit_dns_storing)
+      ? HostDBProcessor::HOSTDB_DO_NOT_FORCE_DNS
+      : HostDBProcessor::HOSTDB_FORCE_DNS_RELOAD
+    ;
+    opt.timeout = (t_state.api_txn_dns_timeout_value != -1) ? t_state.api_txn_dns_timeout_value : 0;
+    opt.host_res_style = ua_session->host_res_style;
+
+    Action *dns_lookup_action_handle = hostDBProcessor.getbyname_imm(this, (process_hostdb_info_pfn) & HttpSM::process_hostdb_info, t_state.dns_info.lookup_name, 0, opt);
+
+    if (dns_lookup_action_handle != ACTION_RESULT_DONE) {
+      ink_assert(!pending_action);
+      pending_action = dns_lookup_action_handle;
+      historical_action = pending_action;
+    } else {
+      call_transact_and_set_next_state(NULL);
+    }
+    return;
+  }
+  ink_assert(!"not reached");
+  return;
+}
+
+void
+HttpSM::do_hostdb_reverse_lookup()
+{
+  ink_assert(t_state.dns_info.lookup_name != NULL);
+  ink_assert(pending_action == NULL);
+
+  DebugSM("http_seq", "[HttpSM::do_hostdb_reverse_lookup] Doing reverse DNS Lookup");
+
+  IpEndpoint addr;
+  ats_ip_pton(t_state.dns_info.lookup_name, &addr.sa);
+  Action *dns_lookup_action_handle = hostDBProcessor.getbyaddr_re(this, &addr.sa);
+
+  if (dns_lookup_action_handle != ACTION_RESULT_DONE) {
+    ink_assert(!pending_action);
+    pending_action = dns_lookup_action_handle;
+    historical_action = pending_action;
+  }
+  return;
+}
+
+void
+HttpSM::do_hostdb_update_if_necessary()
+{
+  int issue_update = 0;
+
+  if (t_state.current.server == NULL || plugin_tunnel_type != HTTP_NO_PLUGIN_TUNNEL) {
+    // No server, so update is not necessary
+    return;
+  }
+  // If we failed back over to the origin server, we don't have our
+  //   hostdb information anymore which means we shouldn't update the hostdb
+  if (!ats_ip_addr_eq(&t_state.current.server->addr.sa, t_state.host_db_info.ip())) {
+    DebugSM("http", "[%" PRId64 "] skipping hostdb update due to server failover", sm_id);
+    return;
+  }
+
+  if (t_state.updated_server_version != HostDBApplicationInfo::HTTP_VERSION_UNDEFINED) {
+    // we may have incorrectly assumed that the hostdb had the wrong version of
+    // http for the server because our first few connect attempts to the server
+    // failed, causing us to downgrade our requests to a lower version and changing
+    // our information about the server version.
+    //
+    // This test therefore just issues the update only if the hostdb version is
+    // in fact different from the version we want the value to be updated to.
+    if (t_state.host_db_info.app.http_data.http_version != t_state.updated_server_version) {
+      t_state.host_db_info.app.http_data.http_version = t_state.updated_server_version;
+      issue_update |= 1;
+    }
+
+    t_state.updated_server_version = HostDBApplicationInfo::HTTP_VERSION_UNDEFINED;
+  }
+  // Check to see if we need to report or clear a connection failure
+  if (t_state.current.server->had_connect_fail()) {
+    issue_update |= 1;
+    mark_host_failure(&t_state.host_db_info, t_state.client_request_time);
+  } else {
+    if (t_state.host_db_info.app.http_data.last_failure != 0) {
+      t_state.host_db_info.app.http_data.last_failure = 0;
+      ats_ip_port_cast(&t_state.current.server->addr) = htons(t_state.current.server->port);
+      issue_update |= 1;
+      char addrbuf[INET6_ADDRPORTSTRLEN];
+      DebugSM("http", "[%" PRId64 "] hostdb update marking IP: %s as up",
+            sm_id,
+            ats_ip_nptop(&t_state.current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+    }
+
+    if (t_state.dns_info.srv_lookup_success && t_state.dns_info.srv_app.http_data.last_failure != 0) {
+      t_state.dns_info.srv_app.http_data.last_failure = 0;
+      hostDBProcessor.setby_srv(t_state.dns_info.lookup_name, 0, t_state.dns_info.srv_hostname, &t_state.dns_info.srv_app);
+      DebugSM("http", "[%" PRId64 "] hostdb update marking SRV: %s as up",
+                  sm_id,
+                  t_state.dns_info.srv_hostname);
+    }
+  }
+
+  if (issue_update) {
+    hostDBProcessor.setby(t_state.current.server->name,
+      strlen(t_state.current.server->name),
+      &t_state.current.server->addr.sa,
+      &t_state.host_db_info.app
+    );
+  }
+
+  char addrbuf[INET6_ADDRPORTSTRLEN];
+  DebugSM("http", "server info = %s", ats_ip_nptop(&t_state.current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+  return;
+}
+
+/*
+ * range entry valid [a,b] (a >= 0 and b >= 0 and a <= b)
+ * HttpTransact::RANGE_NONE if the content length of cached copy is zero or
+ * no range entry
+ * HttpTransact::RANGE_NOT_SATISFIABLE iff all range entries are valid but
+ * none overlap the current extent of the cached copy
+ * HttpTransact::RANGE_NOT_HANDLED if out-of-order Range entries or
+ * the cached copy`s content_length is INT64_MAX (e.g. read_from_writer and trunked)
+ * HttpTransact::RANGE_REQUESTED if all sub range entries are valid and
+ * in order (remove the entries that not overlap the extent of cache copy)
+ */
+void
+HttpSM::parse_range_and_compare(MIMEField *field, int64_t content_length)
+{
+  int prev_good_range = -1;
+  const char *value;
+  int value_len;
+  int n_values;
+  int nr = 0; // number of valid ranges, also index to range array.
+  int not_satisfy = 0;
+  HdrCsvIter csv;
+  const char *s, *e, *tmp;
+  RangeRecord *ranges = NULL;
+  int64_t start, end;
+
+  ink_assert(field != NULL && t_state.range_setup == HttpTransact::RANGE_NONE && t_state.ranges == NULL);
+
+  if (content_length <= 0)
+    return;
+
+  // ToDo: Can this really happen?
+  if (content_length == INT64_MAX) {
+    t_state.range_setup = HttpTransact::RANGE_NOT_HANDLED;
+    return;
+  }
+
+  n_values = 0;
+  value = csv.get_first(field, &value_len);
+  while (value) {
+    ++n_values;
+    value = csv.get_next(&value_len);
+  }
+
+  value = csv.get_first(field, &value_len);
+  if (n_values <= 0 || ptr_len_ncmp(value, value_len, "bytes=", 6))
+    return;
+
+  ranges = new RangeRecord[n_values];
+  value += 6; // skip leading 'bytes='
+  value_len -= 6;
+
+  for (; value; value = csv.get_next(&value_len)) {
+    if (!(tmp = (const char *) memchr(value, '-', value_len))) {
+      t_state.range_setup = HttpTransact::RANGE_NONE;
+      goto Lfaild;
+    }
+
+    // process start value
+    s = value;
+    e = tmp;
+    // skip leading white spaces
+    for (; s < e && ParseRules::is_ws(*s); ++s) ;
+
+    if (s >= e)
+      start = -1;
+    else {
+      for (start = 0; s < e && *s >= '0' && *s <= '9'; ++s)
+        start = start * 10 + (*s - '0');
+      // skip last white spaces
+      for (; s < e && ParseRules::is_ws(*s); ++s) ;
+
+      if (s < e || start < 0) {
+        t_state.range_setup = HttpTransact::RANGE_NONE;
+        goto Lfaild;
+      }
+    }
+
+    // process end value
+    s = tmp + 1;
+    e = value + value_len;
+    // skip leading white spaces
+    for (; s < e && ParseRules::is_ws(*s); ++s) ;
+
+    if (s >= e) {
+      if (start < 0) {
+        t_state.range_setup = HttpTransact::RANGE_NONE;
+        goto Lfaild;
+      } else if (start >= content_length) {
+        not_satisfy++;
+        continue;
+      }
+      end = content_length - 1;
+    } else {
+      for (end = 0; s < e && *s >= '0' && *s <= '9'; ++s)
+        end = end * 10 + (*s - '0');
+      // skip last white spaces
+      for (; s < e && ParseRules::is_ws(*s); ++s) ;
+
+      if (s < e || end < 0) {
+        t_state.range_setup = HttpTransact::RANGE_NONE;
+        goto Lfaild;
+      }
+
+      if (start < 0) {
+        if (end >= content_length)
+          end = content_length;
+        start = content_length - end;
+        end = content_length - 1;
+      } else if (start >= content_length && start <= end) {
+        not_satisfy++;
+        continue;
+      }
+
+      if (end >= content_length)
+        end = content_length - 1;
+    }
+
+    if (start > end) {
+      t_state.range_setup = HttpTransact::RANGE_NONE;
+      goto Lfaild;
+    }
+
+    if (prev_good_range >= 0 && start <= ranges[prev_good_range]._end) {
+      t_state.range_setup = HttpTransact::RANGE_NOT_HANDLED;
+      goto Lfaild;
+    }
+
+    ink_assert(start >= 0 && end >= 0 && start < content_length && end < content_length);
+
+    prev_good_range = nr;
+    ranges[nr]._start = start;
+    ranges[nr]._end = end;
+    ++nr;
+  }
+
+  if (nr > 0) {
+    t_state.range_setup = HttpTransact::RANGE_REQUESTED;
+    t_state.ranges = ranges;
+    t_state.num_range_fields = nr;
+    return;
+  }
+
+  if (not_satisfy)
+    t_state.range_setup = HttpTransact::RANGE_NOT_SATISFIABLE;
+
+Lfaild:
+  t_state.num_range_fields = -1;
+  delete []ranges;
+  return;
+}
+
+void
+HttpSM::calculate_output_cl(int64_t content_length, int64_t num_chars)
+{
+  int i;
+
+  if (t_state.range_setup != HttpTransact::RANGE_REQUESTED &&
+      t_state.range_setup != HttpTransact::RANGE_NOT_TRANSFORM_REQUESTED)
+    return;
+
+  ink_assert(t_state.ranges);
+
+  if (t_state.num_range_fields == 1) {
+    t_state.range_output_cl = t_state.ranges[0]._end - t_state.ranges[0]._start + 1;
+  }
+  else {
+    for (i = 0; i < t_state.num_range_fields; i++) {
+      if (t_state.ranges[i]._start >= 0) {
+        t_state.range_output_cl += boundary_size;
+        t_state.range_output_cl += sub_header_size + content_length;
+        t_state.range_output_cl += num_chars_for_int(t_state.ranges[i]._start)
+          + num_chars_for_int(t_state.ranges[i]._end) + num_chars + 2;
+        t_state.range_output_cl += t_state.ranges[i]._end - t_state.ranges[i]._start + 1;
+        t_state.range_output_cl += 2;
+      }
+    }
+
+    t_state.range_output_cl += boundary_size + 2;
+  }
+
+  Debug("http_range", "Pre-calculated Content-Length for Range response is %" PRId64, t_state.range_output_cl);
+}
+
+void
+HttpSM::do_range_parse(MIMEField *range_field)
+{
+
+  //bool res = false;
+  
+  int64_t content_length   = t_state.cache_info.object_read->object_size_get();
+  int64_t num_chars_for_cl = num_chars_for_int(content_length);
+  
+  parse_range_and_compare(range_field, content_length);
+  calculate_output_cl(content_length, num_chars_for_cl);
+}
+
+// this function looks for any Range: headers, parses them and either
+// sets up a transform processor to handle the request OR defers to the 
+// HttpTunnel
+void
+HttpSM::do_range_setup_if_necessary()
+{
+  MIMEField *field;
+  INKVConnInternal *range_trans;
+  int field_content_type_len = -1;
+  const char * content_type;
+  
+  ink_assert(t_state.cache_info.object_read != NULL);
+  
+  field = t_state.hdr_info.client_request.field_find(MIME_FIELD_RANGE, MIME_LEN_RANGE);
+  ink_assert(field != NULL);
+  
+  t_state.range_setup = HttpTransact::RANGE_NONE;
+
+  if (t_state.method == HTTP_WKSIDX_GET && t_state.hdr_info.client_request.version_get() == HTTPVersion(1, 1)) {
+    do_range_parse(field);
+
+    // if only one range entry and pread is capable, no need transform range
+    if (t_state.range_setup == HttpTransact::RANGE_REQUESTED &&
+        t_state.num_range_fields == 1 &&
+        cache_sm.cache_read_vc->is_pread_capable())
+      t_state.range_setup = HttpTransact::RANGE_NOT_TRANSFORM_REQUESTED;
+
+    if (t_state.range_setup == HttpTransact::RANGE_REQUESTED && 
+        api_hooks.get(TS_HTTP_RESPONSE_TRANSFORM_HOOK) == NULL) {
+      Debug("http_trans", "Unable to accelerate range request, fallback to transform");
+      content_type = t_state.cache_info.object_read->response_get()->value_get(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE, &field_content_type_len);
+      //create a Range: transform processor for requests of type Range: bytes=1-2,4-5,10-100 (eg. multiple ranges)
+      range_trans = transformProcessor.range_transform(mutex,
+          t_state.ranges,
+          t_state.num_range_fields,
+          &t_state.hdr_info.transform_response,
+          content_type,
+          field_content_type_len,
+          t_state.cache_info.object_read->object_size_get()
+          );
+      api_hooks.append(TS_HTTP_RESPONSE_TRANSFORM_HOOK, range_trans);
+    }
+  }
+}
+
+
+void
+HttpSM::do_cache_lookup_and_read()
+{
+  // TODO decide whether to uncomment after finish testing redirect
+  //ink_assert(server_session == NULL);
+  ink_assert(pending_action == 0);
+
+  HTTP_INCREMENT_TRANS_STAT(http_cache_lookups_stat);
+
+  milestones.cache_open_read_begin = ink_get_hrtime();
+  t_state.cache_lookup_result = HttpTransact::CACHE_LOOKUP_NONE;
+  t_state.cache_info.lookup_count++;
+  // YTS Team, yamsat Plugin
+  // Changed the lookup_url to c_url which enables even
+  // the new redirect url to perform a CACHE_LOOKUP
+  URL *c_url;
+  if (t_state.redirect_info.redirect_in_process)
+    c_url = t_state.hdr_info.client_request.url_get();
+  else
+    c_url = t_state.cache_info.lookup_url;
+
+  DebugSM("http_seq", "[HttpSM::do_cache_lookup_and_read] [%" PRId64 "] Issuing cache lookup for URL %s",  sm_id, c_url->string_get(&t_state.arena));
+  Action *cache_action_handle = cache_sm.open_read(c_url,
+                                                   &t_state.hdr_info.client_request,
+                                                   &(t_state.cache_info.config),
+                                                   (time_t) ((t_state.cache_control.pin_in_cache_for < 0) ?
+                                                             0 : t_state.cache_control.pin_in_cache_for));
+  //
+  // pin_in_cache value is an open_write parameter.
+  // It is passed in open_read to allow the cluster to
+  // optimize the typical open_read/open_read failed/open_write
+  // sequence.
+  //
+  if (cache_action_handle != ACTION_RESULT_DONE) {
+    ink_assert(!pending_action);
+    pending_action = cache_action_handle;
+    historical_action = pending_action;
+  }
+  REMEMBER((long) pending_action, reentrancy_count);
+
+  return;
+}
+
+void
+HttpSM::do_cache_delete_all_alts(Continuation * cont)
+{
+  // Do not delete a non-existant object.
+  ink_assert(t_state.cache_info.object_read);
+
+  DebugSM("http_seq", "[HttpSM::do_cache_delete_all_alts] Issuing cache delete for %s",
+          t_state.cache_info.lookup_url->string_get_ref());
+
+  Action *cache_action_handle = NULL;
+
+  cache_action_handle = cacheProcessor.remove(cont, t_state.cache_info.lookup_url, t_state.cache_control.cluster_cache_local);
+  if (cont != NULL) {
+    if (cache_action_handle != ACTION_RESULT_DONE) {
+      ink_assert(!pending_action);
+      pending_action = cache_action_handle;
+      historical_action = pending_action;
+    }
+  }
+
+  return;
+}
+
+inline void
+HttpSM::do_cache_prepare_write()
+{
+  // statistically no need to retry when we are trying to lock
+  // LOCK_URL_SECOND url because the server's behavior is unlikely to change
+  milestones.cache_open_write_begin = ink_get_hrtime();
+  bool retry = (t_state.api_lock_url == HttpTransact::LOCK_URL_FIRST);
+  do_cache_prepare_action(&cache_sm, t_state.cache_info.object_read, retry);
+}
+
+inline void
+HttpSM::do_cache_prepare_write_transform()
+{
+  if (cache_sm.cache_write_vc != NULL || tunnel.has_cache_writer())
+    do_cache_prepare_action(&transform_cache_sm, NULL, false, true);
+  else
+    do_cache_prepare_action(&transform_cache_sm, NULL, false);
+}
+
+void
+HttpSM::do_cache_prepare_update()
+{
+  if (t_state.cache_info.object_read != NULL &&
+      t_state.cache_info.object_read->valid() &&
+      t_state.cache_info.object_store.valid() &&
+      t_state.cache_info.object_store.response_get() != NULL &&
+      t_state.cache_info.object_store.response_get()->valid() && t_state.hdr_info.client_request.method_get_wksidx()
+      == HTTP_WKSIDX_GET) {
+    t_state.cache_info.object_store.request_set(t_state.cache_info.object_read->request_get());
+    // t_state.cache_info.object_read = NULL;
+    // cache_sm.close_read();
+
+    t_state.transact_return_point = HttpTransact::HandleUpdateCachedObject;
+    ink_assert(cache_sm.cache_write_vc == NULL);
+    HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_cache_open_write);
+    // don't retry read for update
+    do_cache_prepare_action(&cache_sm, t_state.cache_info.object_read, false);
+  } else {
+    t_state.api_modifiable_cached_resp = false;
+    call_transact_and_set_next_state(HttpTransact::HandleApiErrorJump);
+  }
+}
+
+void
+HttpSM::do_cache_prepare_action(HttpCacheSM * c_sm, CacheHTTPInfo * object_read_info, bool retry, bool allow_multiple)
+{
+  URL *o_url, *c_url, *s_url;
+  bool restore_client_request = false;
+
+  ink_assert(!pending_action);
+  ink_assert(c_sm->cache_write_vc == NULL);
+
+  if (t_state.api_lock_url == HttpTransact::LOCK_URL_FIRST) {
+    if (t_state.redirect_info.redirect_in_process) {
+      o_url = &(t_state.redirect_info.original_url);
+      ink_assert(o_url->valid());
+      restore_client_request = true;
+      s_url = o_url;
+    } else {
+      o_url = &(t_state.cache_info.original_url);
+      if (o_url->valid())
+        s_url = o_url;
+      else
+        s_url = t_state.cache_info.lookup_url;
+    }
+  } else if (t_state.api_lock_url == HttpTransact::LOCK_URL_SECOND) {
+    s_url = &t_state.cache_info.lookup_url_storage;
+  } else {
+    ink_assert(t_state.api_lock_url == HttpTransact::LOCK_URL_ORIGINAL);
+    s_url = &(t_state.cache_info.original_url);
+    restore_client_request = true;
+  }
+
+  // modify client request to make it have the url we are going to
+  // store into the cache
+  if (restore_client_request) {
+    c_url = t_state.hdr_info.client_request.url_get();
+    s_url->copy(c_url);
+  }
+
+  ink_assert(s_url != NULL && s_url->valid());
+  DebugSM("http_cache_write", "[%" PRId64 "] writing to cache with URL %s", sm_id, s_url->string_get(&t_state.arena));
+  Action *cache_action_handle = c_sm->open_write(s_url, &t_state.hdr_info.client_request,
+                                                 object_read_info,
+                                                 (time_t) ((t_state.cache_control.pin_in_cache_for < 0) ?
+                                                           0 : t_state.cache_control.pin_in_cache_for),
+                                                 retry, allow_multiple);
+
+  if (cache_action_handle != ACTION_RESULT_DONE) {
+    ink_assert(!pending_action);
+    pending_action = cache_action_handle;
+    historical_action = pending_action;
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::do_http_server_open()
+//
+//////////////////////////////////////////////////////////////////////////
+void
+HttpSM::do_http_server_open(bool raw)
+{
+  int ip_family = t_state.current.server->addr.sa.sa_family;
+  DebugSM("http_track", "entered inside do_http_server_open ][%s]", ats_ip_family_name(ip_family));
+
+  ink_assert(server_entry == NULL);
+
+  // ua_entry can be null if a scheduled update is also a reverse proxy
+  // request. Added REVPROXY to the assert below, and then changed checks
+  // to be based on ua_session != NULL instead of req_flavor value.
+  ink_assert(ua_entry != NULL ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_REVPROXY);
+
+  ink_assert(pending_action == NULL);
+
+  if (false == t_state.api_server_addr_set) {
+    ink_assert(t_state.current.server->port > 0);
+    t_state.current.server->addr.port() = htons(t_state.current.server->port);
+  } else {
+    ink_assert(ats_ip_port_cast(&t_state.current.server->addr) != 0);
+  }
+
+  char addrbuf[INET6_ADDRPORTSTRLEN];
+  DebugSM("http", "[%" PRId64 "] open connection to %s: %s",
+        sm_id, t_state.current.server->name, 
+        ats_ip_nptop(&t_state.current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+
+  if (plugin_tunnel) {
+    PluginVCCore *t = plugin_tunnel;
+    plugin_tunnel = NULL;
+    Action *pvc_action_handle = t->connect_re(this);
+
+    // This connect call is always reentrant
+    ink_release_assert(pvc_action_handle == ACTION_RESULT_DONE);
+    return;
+  }
+
+  DebugSM("http_seq", "[HttpSM::do_http_server_open] Sending request to server");
+
+  milestones.server_connect = ink_get_hrtime();
+  if (milestones.server_first_connect == 0) {
+    milestones.server_first_connect = milestones.server_connect;
+  }
+
+  if (t_state.pCongestionEntry != NULL) {
+    if (t_state.pCongestionEntry->F_congested() && (!t_state.pCongestionEntry->proxy_retry(milestones.server_connect))) {
+      t_state.congestion_congested_or_failed = 1;
+      t_state.pCongestionEntry->stat_inc_F();
+      CONGEST_INCREMENT_DYN_STAT(congested_on_F_stat);
+      handleEvent(CONGESTION_EVENT_CONGESTED_ON_F, NULL);
+      return;
+    } else if (t_state.pCongestionEntry->M_congested(ink_hrtime_to_sec(milestones.server_connect))) {
+      t_state.pCongestionEntry->stat_inc_M();
+      t_state.congestion_congested_or_failed = 1;
+      CONGEST_INCREMENT_DYN_STAT(congested_on_M_stat);
+      handleEvent(CONGESTION_EVENT_CONGESTED_ON_M, NULL);
+      return;
+    }
+  }
+  // If this is not a raw connection, we try to get a session from the
+  //  shared session pool.  Raw connections are for SSLs tunnel and
+  //  require a new connection
+  //
+
+  // This problem with POST requests is a bug.  Because of the issue of the
+  // race with us sending a request after server has closed but before the FIN
+  // gets to us, we should open a new connection for POST.  I believe TS used
+  // to do this but as far I can tell the code that prevented keep-alive if
+  // there is a request body has been removed.
+
+  if (raw == false && TS_SERVER_SESSION_SHARING_MATCH_NONE != t_state.txn_conf->server_session_sharing_match &&
+      (t_state.txn_conf->keep_alive_post_out == 1 || t_state.hdr_info.request_content_length == 0) &&
+       !is_private() && ua_session != NULL) {
+    HSMresult_t shared_result;
+    shared_result = httpSessionManager.acquire_session(this,    // state machine
+                                                       &t_state.current.server->addr.sa,    // ip + port
+                                                       t_state.current.server->name,    // hostname
+                                                       ua_session,      // has ptr to bound ua sessions
+                                                       this     // sm
+    );
+
+    switch (shared_result) {
+    case HSM_DONE:
+      hsm_release_assert(server_session != NULL);
+      handle_http_server_open();
+      return;
+    case HSM_NOT_FOUND:
+      hsm_release_assert(server_session == NULL);
+      break;
+    case HSM_RETRY:
+      //  Could not get shared pool lock
+      //   FIX: should retry lock
+      break;
+    default:
+      hsm_release_assert(0);
+    }
+  }
+  // This bug was due to when share_server_sessions is set to 0
+  // and we have keep-alive, we are trying to open a new server session
+  // when we already have an attached server session.
+  else if ((TS_SERVER_SESSION_SHARING_MATCH_NONE == t_state.txn_conf->server_session_sharing_match || is_private()) &&
+           (ua_session != NULL)) {
+    HttpServerSession *existing_ss = ua_session->get_server_session();
+
+    if (existing_ss) {
+      // [amc] Not sure if this is the best option, but we don't get here unless session sharing is disabled
+      // so there's point in further checking on the match or pool values. But why check anything? The
+      // client has already exchanged a request with this specific origin server and has sent another one
+      // shouldn't we just automatically keep the association?
+      if (ats_ip_addr_eq(&existing_ss->server_ip.sa, &t_state.current.server->addr.sa) &&
+          ats_ip_port_cast(&existing_ss->server_ip) == ats_ip_port_cast(&t_state.current.server->addr)) {
+        ua_session->attach_server_session(NULL);
+        existing_ss->state = HSS_ACTIVE;
+        this->attach_server_session(existing_ss);
+        hsm_release_assert(server_session != NULL);
+        handle_http_server_open();
+        return;
+      } else {
+        // As this is in the non-sharing configuration, we want to close
+        // the existing connection and call connect_re to get a new one
+        existing_ss->release();
+        ua_session->attach_server_session(NULL);
+      }
+    }
+  }
+  // Otherwise, we release the existing connection and call connect_re
+  // to get a new one.
+  // ua_session is null when t_state.req_flavor == REQ_FLAVOR_SCHEDULED_UPDATE
+  else if (ua_session != NULL) {
+    HttpServerSession *existing_ss = ua_session->get_server_session();
+    if (existing_ss) {
+      existing_ss->release();
+      ua_session->attach_server_session(NULL);
+    }
+  }
+  // Check to see if we have reached the max number of connections.
+  // Atomically read the current number of connections and check to see
+  // if we have gone above the max allowed.
+  if (t_state.http_config_param->server_max_connections > 0) {
+    int64_t sum;
+
+    HTTP_READ_GLOBAL_DYN_SUM(http_current_server_connections_stat, sum);
+
+    // Note that there is a potential race condition here where
+    // the value of the http_current_server_connections_stat gets changed
+    // between the statement above and the check below.
+    // If this happens, we might go over the max by 1 but this is ok.
+    if (sum >= t_state.http_config_param->server_max_connections) {
+      ink_assert(pending_action == NULL);
+      pending_action = eventProcessor.schedule_in(this, HRTIME_MSECONDS(100));
+      httpSessionManager.purge_keepalives();
+      return;
+    }
+  }
+  // Check to see if we have reached the max number of connections on this
+  // host.
+  if (t_state.txn_conf->origin_max_connections > 0) {
+    ConnectionCount *connections = ConnectionCount::getInstance();
+
+    char addrbuf[INET6_ADDRSTRLEN];
+    if (connections->getCount((t_state.current.server->addr)) >= t_state.txn_conf->origin_max_connections) {
+      DebugSM("http", "[%" PRId64 "] over the number of connection for this host: %s", sm_id,
+        ats_ip_ntop(&t_state.current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+      ink_assert(pending_action == NULL);
+      pending_action = eventProcessor.schedule_in(this, HRTIME_MSECONDS(100));
+      return;
+    }
+  }
+
+  // We did not manage to get an existing session
+  //  and need to open a new connection
+  Action *connect_action_handle;
+
+  NetVCOptions opt;
+  opt.f_blocking_connect = false;
+  opt.set_sock_param(t_state.txn_conf->sock_recv_buffer_size_out,
+                     t_state.txn_conf->sock_send_buffer_size_out,
+                     t_state.txn_conf->sock_option_flag_out,
+                     t_state.txn_conf->sock_packet_mark_out,
+                     t_state.txn_conf->sock_packet_tos_out);
+
+  opt.ip_family = ip_family;
+
+  if (ua_session) {
+    opt.local_port = ua_session->outbound_port;
+
+    IpAddr& outbound_ip = AF_INET6 == ip_family ? ua_session->outbound_ip6 : ua_session->outbound_ip4;
+    if (outbound_ip.isValid()) {
+      opt.addr_binding = NetVCOptions::INTF_ADDR;
+      opt.local_ip = outbound_ip;
+    } else if (ua_session->f_outbound_transparent) {
+      opt.addr_binding = NetVCOptions::FOREIGN_ADDR;
+      opt.local_ip = t_state.client_info.addr;
+      /* If the connection is server side transparent, we can bind to the
+         port that the client chose instead of randomly assigning one at
+         the proxy.  This is controlled by the 'use_client_source_port'
+         configuration parameter.
+      */
+
+      NetVConnection *client_vc = ua_session->get_netvc();
+      if (t_state.http_config_param->use_client_source_port && NULL != client_vc) {
+        opt.local_port = client_vc->get_remote_port();
+      }
+    }
+  }
+
+  int scheme_to_use = t_state.scheme; // get initial scheme
+
+  if (!t_state.is_websocket) { // if not websocket, then get scheme from server request
+    int new_scheme_to_use = t_state.hdr_info.server_request.url_get()->scheme_get_wksidx();
+    // if the server_request url scheme was never set, try the client_request
+    if (new_scheme_to_use < 0) {
+      new_scheme_to_use = t_state.hdr_info.client_request.url_get()->scheme_get_wksidx();
+    }
+    if (new_scheme_to_use >= 0) { // found a new scheme, use it
+      scheme_to_use = new_scheme_to_use;
+    }
+  }
+
+  if (scheme_to_use == URL_WKSIDX_HTTPS) {
+    DebugSM("http", "calling sslNetProcessor.connect_re");
+    connect_action_handle = sslNetProcessor.connect_re(this,    // state machine
+                                                       &t_state.current.server->addr.sa,    // addr + port
+                                                       &opt);
+  } else {
+    if (t_state.method != HTTP_WKSIDX_CONNECT) {
+      DebugSM("http", "calling netProcessor.connect_re");
+      connect_action_handle = netProcessor.connect_re(this,     // state machine
+                                                      &t_state.current.server->addr.sa,    // addr + port
+                                                      &opt);
+    } else {
+      // Setup the timeouts
+      // Set the inactivity timeout to the connect timeout so that we
+      //   we fail this server if it doesn't start sending the response
+      //   header
+      MgmtInt connect_timeout;
+      if (t_state.method == HTTP_WKSIDX_POST || t_state.method == HTTP_WKSIDX_PUT) {
+        connect_timeout = t_state.txn_conf->post_connect_attempts_timeout;
+      } else if (t_state.current.server == &t_state.parent_info) {
+        connect_timeout = t_state.http_config_param->parent_connect_timeout;
+      } else {
+        if (t_state.pCongestionEntry != NULL)
+          connect_timeout = t_state.pCongestionEntry->connect_timeout();
+        else
+          connect_timeout = t_state.txn_conf->connect_attempts_timeout;
+      }
+      DebugSM("http", "calling netProcessor.connect_s");
+      connect_action_handle = netProcessor.connect_s(this,      // state machine
+                                                     &t_state.current.server->addr.sa,    // addr + port
+                                                     connect_timeout, &opt);
+    }
+  }
+
+  if (connect_action_handle != ACTION_RESULT_DONE) {
+    ink_assert(!pending_action);
+    pending_action = connect_action_handle;
+    historical_action = pending_action;
+  }
+
+  return;
+}
+
+
+void
+HttpSM::do_icp_lookup()
+{
+  ink_assert(pending_action == NULL);
+
+  URL *o_url = &t_state.cache_info.original_url;
+
+  Action *icp_lookup_action_handle = icpProcessor.ICPQuery(this,
+                                                           o_url->valid()? o_url : t_state.cache_info.lookup_url);
+
+  if (icp_lookup_action_handle != ACTION_RESULT_DONE) {
+    ink_assert(!pending_action);
+    pending_action = icp_lookup_action_handle;
+    historical_action = pending_action;
+  }
+
+  return;
+}
+
+void
+HttpSM::do_api_callout_internal()
+{
+  if (t_state.backdoor_request) {
+    handle_api_return();
+    return;
+  }
+
+  switch (t_state.api_next_action) {
+  case HttpTransact::SM_ACTION_API_SM_START:
+    cur_hook_id = TS_HTTP_TXN_START_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_PRE_REMAP:
+    cur_hook_id = TS_HTTP_PRE_REMAP_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_POST_REMAP:
+    cur_hook_id = TS_HTTP_POST_REMAP_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_READ_REQUEST_HDR:
+    cur_hook_id = TS_HTTP_READ_REQUEST_HDR_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_OS_DNS:
+    cur_hook_id = TS_HTTP_OS_DNS_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_SEND_REQUEST_HDR:
+    cur_hook_id = TS_HTTP_SEND_REQUEST_HDR_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_READ_CACHE_HDR:
+    cur_hook_id = TS_HTTP_READ_CACHE_HDR_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_CACHE_LOOKUP_COMPLETE:
+    cur_hook_id = TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_READ_RESPONSE_HDR:
+    cur_hook_id = TS_HTTP_READ_RESPONSE_HDR_HOOK;
+    break;
+  case HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR:
+    cur_hook_id = TS_HTTP_SEND_RESPONSE_HDR_HOOK;
+    milestones.ua_begin_write = ink_get_hrtime();
+    break;
+  case HttpTransact::SM_ACTION_API_SM_SHUTDOWN:
+    if (callout_state == HTTP_API_IN_CALLOUT || callout_state == HTTP_API_DEFERED_SERVER_ERROR) {
+      callout_state = HTTP_API_DEFERED_CLOSE;
+      return;
+    } else {
+      cur_hook_id = TS_HTTP_TXN_CLOSE_HOOK;
+    }
+
+    break;
+  default:
+    cur_hook_id = (TSHttpHookID) - 1;
+    ink_assert(!"not reached");
+  }
+
+  cur_hook = NULL;
+  cur_hooks = 0;
+  state_api_callout(0, NULL);
+}
+
+VConnection *
+HttpSM::do_post_transform_open()
+{
+  ink_assert(post_transform_info.vc == NULL);
+
+  if (is_action_tag_set("http_post_nullt")) {
+    txn_hook_prepend(TS_HTTP_REQUEST_TRANSFORM_HOOK, transformProcessor.null_transform(mutex));
+  }
+
+  post_transform_info.vc = transformProcessor.open(this, api_hooks.get(TS_HTTP_REQUEST_TRANSFORM_HOOK));
+  if (post_transform_info.vc) {
+    // Record the transform VC in our table
+    post_transform_info.entry = vc_table.new_entry();
+    post_transform_info.entry->vc = post_transform_info.vc;
+    post_transform_info.entry->vc_type = HTTP_TRANSFORM_VC;
+  }
+
+  return post_transform_info.vc;
+}
+
+VConnection *
+HttpSM::do_transform_open()
+{
+  ink_assert(transform_info.vc == NULL);
+  APIHook *hooks;
+
+  if (is_action_tag_set("http_nullt")) {
+    txn_hook_prepend(TS_HTTP_RESPONSE_TRANSFORM_HOOK, transformProcessor.null_transform(mutex));
+  }
+
+  hooks = api_hooks.get(TS_HTTP_RESPONSE_TRANSFORM_HOOK);
+  if (hooks) {
+    transform_info.vc = transformProcessor.open(this, hooks);
+
+    // Record the transform VC in our table
+    transform_info.entry = vc_table.new_entry();
+    transform_info.entry->vc = transform_info.vc;
+    transform_info.entry->vc_type = HTTP_TRANSFORM_VC;
+  } else {
+    transform_info.vc = NULL;
+  }
+
+  return transform_info.vc;
+}
+
+void
+HttpSM::mark_host_failure(HostDBInfo * info, time_t time_down)
+{
+  char addrbuf[INET6_ADDRPORTSTRLEN];
+
+  if (info->app.http_data.last_failure == 0) {
+    char *url_str = t_state.hdr_info.client_request.url_string_get(&t_state.arena, 0);
+    Log::error("CONNECT: could not connect to %s "
+               "for '%s' (setting last failure time)",
+               ats_ip_ntop(&t_state.current.server->addr.sa, addrbuf, sizeof(addrbuf)),
+               url_str ? url_str : "<none>"
+    );
+    if (url_str)
+      t_state.arena.str_free(url_str);
+  }
+
+  info->app.http_data.last_failure = time_down;
+
+
+#ifdef DEBUG
+  ink_assert(ink_cluster_time() + t_state.txn_conf->down_server_timeout > time_down);
+#endif
+
+  DebugSM("http", "[%" PRId64 "] hostdb update marking IP: %s as down",
+        sm_id,
+        ats_ip_nptop(&t_state.current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+}
+
+void
+HttpSM::set_ua_abort(HttpTransact::AbortState_t ua_abort, int event)
+{
+  t_state.client_info.abort = ua_abort;
+
+  switch (ua_abort) {
+  case HttpTransact::ABORTED:
+  case HttpTransact::MAYBE_ABORTED:
+    t_state.squid_codes.log_code = SQUID_LOG_ERR_CLIENT_ABORT;
+    break;
+  default:
+    // Handled here:
+    // HttpTransact::ABORT_UNDEFINED, HttpTransact::DIDNOT_ABORT
+    break;
+  }
+
+  // Set the connection attribute code for the client so that
+  //   we log the client finish code correctly
+  switch (event) {
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    t_state.client_info.state = HttpTransact::ACTIVE_TIMEOUT;
+    break;
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    t_state.client_info.state = HttpTransact::INACTIVE_TIMEOUT;
+    break;
+  case VC_EVENT_ERROR:
+    t_state.client_info.state = HttpTransact::CONNECTION_ERROR;
+    break;
+  }
+}
+
+void
+HttpSM::mark_server_down_on_client_abort()
+{
+  /////////////////////////////////////////////////////
+  //  Check see if the client aborted because the    //
+  //  origin server was too slow in sending the      //
+  //  response header.  If so, mark that             //
+  //  server as down so other clients won't try to   //
+  //  for revalidation or select it from a round     //
+  //  robin set                                      //
+  //                                                 //
+  //  Note: we do not want to mark parent or icp     //
+  //  proxies as down with this metric because       //
+  //  that upstream proxy may be working but         //
+  //  the actual origin server is one that is hung   //
+  /////////////////////////////////////////////////////
+  if (t_state.current.request_to == HttpTransact::ORIGIN_SERVER && t_state.hdr_info.request_content_length == 0) {
+    if (milestones.server_first_connect != 0 && milestones.server_first_read == 0) {
+      // Check to see if client waited for the threshold
+      //  to declare the origin server as down
+      ink_hrtime wait = ink_get_hrtime() - milestones.server_first_connect;
+      if (wait < 0) {
+        wait = 0;
+      }
+      if (ink_hrtime_to_sec(wait) > t_state.txn_conf->client_abort_threshold) {
+        t_state.current.server->set_connect_fail(ETIMEDOUT);
+        do_hostdb_update_if_necessary();
+      }
+    }
+  }
+}
+
+// void HttpSM::release_server_session()
+//
+//  Called when we are not tunneling a response from the
+//   server.  If the session is keep alive, release it back to the
+//   shared pool, otherwise close it
+//
+void
+HttpSM::release_server_session(bool serve_from_cache)
+{
+  if (server_session == NULL) {
+    return;
+  }
+
+  if (t_state.current.server->keep_alive == HTTP_KEEPALIVE &&
+      t_state.hdr_info.server_response.valid() &&
+      (t_state.hdr_info.server_response.status_get() == HTTP_STATUS_NOT_MODIFIED ||
+       (t_state.hdr_info.server_request.method_get_wksidx() == HTTP_WKSIDX_HEAD
+        && t_state.www_auth_content != HttpTransact::CACHE_AUTH_NONE)) &&
+      plugin_tunnel_type == HTTP_NO_PLUGIN_TUNNEL) {
+    HTTP_DECREMENT_DYN_STAT(http_current_server_transactions_stat);
+    server_session->server_trans_stat--;
+    server_session->attach_hostname(t_state.current.server->name);
+    if (t_state.www_auth_content == HttpTransact::CACHE_AUTH_NONE || serve_from_cache == false) {
+      server_session->release();
+    } else {
+      // an authenticated server connection - attach to the local client
+      // we are serving from cache for the current transaction
+      t_state.www_auth_content = HttpTransact::CACHE_AUTH_SERVE;
+      ua_session->attach_server_session(server_session, false);
+    }
+  } else {
+    server_session->do_io_close();
+  }
+
+  ink_assert(server_entry->vc == server_session);
+  server_entry->in_tunnel = true;
+  vc_table.cleanup_entry(server_entry);
+  server_entry = NULL;
+  server_session = NULL;
+}
+
+// void HttpSM::handle_post_failure()
+//
+//   We failed in our attempt post (or put) a document
+//    to the server.  Two cases happen here.  The normal
+//    one is the server died, in which case we ought to
+//    return an error to the client.  The second one is
+//    stupid.  The server returned a response without reading
+//    all the post data.  In order to be as transparent as
+//    possible process the server's response
+void
+HttpSM::handle_post_failure()
+{
+  STATE_ENTER(&HttpSM::handle_post_failure, VC_EVENT_NONE);
+
+  ink_assert(ua_entry->vc == ua_session);
+  ink_assert(server_entry->eos == true);
+
+  // First order of business is to clean up from
+  //  the tunnel
+  // note: since the tunnel is providing the buffer for a lingering
+  // client read (for abort watching purposes), we need to stop
+  // the read
+  if (false == t_state.redirect_info.redirect_in_process) {
+    ua_entry->read_vio = ua_session->do_io_read(this, 0, NULL);
+  }
+  ua_entry->in_tunnel = false;
+  server_entry->in_tunnel = false;
+
+  // disable redirection in case we got a partial response and then EOS, because the buffer might not
+  // have the full post and it's deallocating the post buffers here
+  enable_redirection = false;
+  tunnel.deallocate_redirect_postdata_buffers();
+
+  // Don't even think about doing keep-alive after this debacle
+  t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE;
+  t_state.current.server->keep_alive = HTTP_NO_KEEPALIVE;
+
+  if (server_buffer_reader->read_avail() > 0) {
+    tunnel.reset();
+    // There's data from the server so try to read the header
+    setup_server_read_response_header();
+  } else {
+    tunnel.deallocate_buffers();
+    tunnel.reset();
+    // Server died
+    vc_table.cleanup_entry(server_entry);
+    server_entry = NULL;
+    server_session = NULL;
+    t_state.current.state = HttpTransact::CONNECTION_CLOSED;
+    call_transact_and_set_next_state(HttpTransact::HandleResponse);
+  }
+}
+
+// void HttpSM::handle_http_server_open()
+//
+//   The server connection is now open.  If there is a POST or PUT,
+//    we need setup a transform is there is one otherwise we need
+//    to send the request header
+//
+void
+HttpSM::handle_http_server_open()
+{
+  // [bwyatt] applying per-transaction OS netVC options here
+  //          IFF they differ from the netVC's current options.
+  //          This should keep this from being redundant on a
+  //          server session's first transaction.
+  if (NULL != server_session) {
+    NetVConnection *vc = server_session->get_netvc();
+    if (vc != NULL &&
+        (vc->options.sockopt_flags != t_state.txn_conf->sock_option_flag_out ||
+         vc->options.packet_mark != t_state.txn_conf->sock_packet_mark_out ||
+         vc->options.packet_tos != t_state.txn_conf->sock_packet_tos_out )) {
+      vc->options.sockopt_flags = t_state.txn_conf->sock_option_flag_out;
+      vc->options.packet_mark = t_state.txn_conf->sock_packet_mark_out;
+      vc->options.packet_tos = t_state.txn_conf->sock_packet_tos_out;
+      vc->apply_options();
+    }
+  }
+
+  if (t_state.pCongestionEntry != NULL) {
+    if (t_state.congestion_connection_opened == 0) {
+      t_state.congestion_connection_opened = 1;
+      t_state.pCongestionEntry->connection_opened();
+    }
+  }
+
+  int method = t_state.hdr_info.server_request.method_get_wksidx();
+  if (method != HTTP_WKSIDX_TRACE &&
+      (t_state.hdr_info.request_content_length > 0 || t_state.client_info.transfer_encoding == HttpTransact::CHUNKED_ENCODING) &&
+       do_post_transform_open()) {
+    do_setup_post_tunnel(HTTP_TRANSFORM_VC);
+  } else {
+    setup_server_send_request_api();
+  }
+}
+
+// void HttpSM::handle_server_setup_error(int event, void* data)
+//
+//   Handles setting t_state.current.state and calling
+//    Transact in between opening an origin server connection
+//    and receiving the response header (in the case of the
+//    POST, a post tunnel happens in between the sending
+//    request header and reading the response header
+//
+void
+HttpSM::handle_server_setup_error(int event, void *data)
+{
+  VIO *vio = (VIO *) data;
+  ink_assert(vio != NULL);
+
+  STATE_ENTER(&HttpSM::handle_server_setup_error, event);
+
+  // If there is POST or PUT tunnel wait for the tunnel
+  //  to figure out that things have gone to hell
+
+  if (tunnel.is_tunnel_active()) {
+    ink_assert(server_entry->read_vio == data);
+    DebugSM("http", "[%" PRId64 "] [handle_server_setup_error] "
+          "forwarding event %s to post tunnel", sm_id, HttpDebugNames::get_event_name(event));
+    HttpTunnelConsumer *c = tunnel.get_consumer(server_entry->vc);
+    // it is possible only user agent post->post transform is set up
+    // this happened for Linux iocore where NET_EVENT_OPEN was returned
+    // for a non-existing listening port. the hack is to pass the error
+    // event for server connection to post_transform_info
+    if (c == NULL && post_transform_info.vc) {
+      c = tunnel.get_consumer(post_transform_info.vc);
+      // c->handler_state = HTTP_SM_TRANSFORM_FAIL;
+
+      HttpTunnelProducer *ua_producer = c->producer;
+      ink_assert(ua_entry->vc == ua_producer->vc);
+
+      ua_entry->vc_handler = &HttpSM::state_watch_for_client_abort;
+      ua_entry->read_vio = ua_producer->vc->do_io_read(this, INT64_MAX, c->producer->read_buffer);
+      ua_producer->vc->do_io_shutdown(IO_SHUTDOWN_READ);
+
+      ua_producer->alive = false;
+      ua_producer->handler_state = HTTP_SM_POST_SERVER_FAIL;
+      tunnel.handleEvent(VC_EVENT_ERROR, c->write_vio);
+    } else {
+      tunnel.handleEvent(event, c->write_vio);
+    }
+    return;
+  } else {
+    if (post_transform_info.vc) {
+      HttpTunnelConsumer *c = tunnel.get_consumer(post_transform_info.vc);
+      if (c && c->handler_state == HTTP_SM_TRANSFORM_OPEN) {
+        vc_table.cleanup_entry(post_transform_info.entry);
+        post_transform_info.entry = NULL;
+        tunnel.deallocate_buffers();
+        tunnel.reset();
+      }
+    }
+  }
+
+  if (event == VC_EVENT_ERROR) {
+    t_state.cause_of_death_errno = server_session->get_netvc()->lerrno;
+  }
+
+  switch (event) {
+  case VC_EVENT_EOS:
+    t_state.current.state = HttpTransact::CONNECTION_CLOSED;
+    break;
+  case VC_EVENT_ERROR:
+    t_state.current.state = HttpTransact::CONNECTION_ERROR;
+    break;
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    t_state.current.state = HttpTransact::ACTIVE_TIMEOUT;
+    break;
+
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    // If we're writing the request and get an inactivity timeout
+    //   before any bytes are written, the connection to the
+    //   server failed
+    // In case of TIMEOUT, the iocore sends back
+    // server_entry->read_vio instead of the write_vio
+    // if (vio->op == VIO::WRITE && vio->ndone == 0) {
+    if (server_entry->write_vio->nbytes > 0 && server_entry->write_vio->ndone == 0) {
+      t_state.current.state = HttpTransact::CONNECTION_ERROR;
+    } else {
+      t_state.current.state = HttpTransact::INACTIVE_TIMEOUT;
+    }
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  // Closedown server connection and deallocate buffers
+  ink_assert(server_entry->in_tunnel == false);
+  vc_table.cleanup_entry(server_entry);
+  server_entry = NULL;
+  server_session = NULL;
+
+  // if we are waiting on a plugin callout for
+  //   HTTP_API_SEND_REQUEST_HDR defer calling transact until
+  //   after we've finished processing the plugin callout
+  switch (callout_state) {
+  case HTTP_API_NO_CALLOUT:
+    // Normal fast path case, no api callouts in progress
+    break;
+  case HTTP_API_IN_CALLOUT:
+  case HTTP_API_DEFERED_SERVER_ERROR:
+    // Callout in progress note that we are in deferring
+    //   the server error
+    callout_state = HTTP_API_DEFERED_SERVER_ERROR;
+    return;
+  case HTTP_API_DEFERED_CLOSE:
+    // The user agent has shutdown killing the sm
+    //   but we are stuck waiting for the server callout
+    //   to finish so do nothing here.  We don't care
+    //   about the server connection at this and are
+    //   just waiting till we can execute the close hook
+    return;
+  default:
+    ink_release_assert(0);
+  }
+
+  call_transact_and_set_next_state(HttpTransact::HandleResponse);
+}
+
+void
+HttpSM::setup_transform_to_server_transfer()
+{
+  ink_assert(post_transform_info.vc != NULL);
+  ink_assert(post_transform_info.entry->vc == post_transform_info.vc);
+
+  int64_t nbytes = t_state.hdr_info.transform_request_cl;
+  int64_t alloc_index = buffer_size_to_index(nbytes);
+  MIOBuffer *post_buffer = new_MIOBuffer(alloc_index);
+  IOBufferReader *buf_start = post_buffer->alloc_reader();
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler_post);
+
+  HttpTunnelConsumer *c = tunnel.get_consumer(post_transform_info.vc);
+
+  HttpTunnelProducer *p = tunnel.add_producer(post_transform_info.vc,
+                                              nbytes,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_transform_read,
+                                              HT_TRANSFORM,
+                                              "post transform");
+  tunnel.chain(c,p);
+  post_transform_info.entry->in_tunnel = true;
+
+  tunnel.add_consumer(server_entry->vc,
+                      post_transform_info.vc, &HttpSM::tunnel_handler_post_server, HT_HTTP_SERVER, "http server post");
+  server_entry->in_tunnel = true;
+
+  tunnel.tunnel_run(p);
+}
+
+#ifdef PROXY_DRAIN
+void
+HttpSM::do_drain_request_body()
+{
+  int64_t post_bytes = t_state.hdr_info.request_content_length;
+  int64_t avail = ua_buffer_reader->read_avail();
+
+  int64_t act_on = (avail < post_bytes) ? avail : post_bytes;
+
+  client_request_body_bytes = act_on;
+  ua_buffer_reader->consume(act_on);
+
+  ink_assert(client_request_body_bytes <= post_bytes);
+
+  if (client_request_body_bytes < post_bytes) {
+    ua_buffer_reader->mbuf->size_index = buffer_size_to_index(t_state.hdr_info.request_content_length);
+    ua_entry->vc_handler = &HttpSM::state_drain_client_request_body;
+    ua_entry->read_vio = ua_entry->vc->do_io_read(this, post_bytes - client_request_body_bytes, ua_buffer_reader->mbuf);
+  } else {
+    call_transact_and_set_next_state(NULL);
+  }
+}
+#endif /* PROXY_DRAIN */
+
+void
+HttpSM::do_setup_post_tunnel(HttpVC_t to_vc_type)
+{
+  bool chunked = (t_state.client_info.transfer_encoding == HttpTransact::CHUNKED_ENCODING);
+  bool post_redirect = false;
+
+  HttpTunnelProducer *p = NULL;
+  // YTS Team, yamsat Plugin
+  // if redirect_in_process and redirection is enabled add static producer
+
+  if (t_state.redirect_info.redirect_in_process && enable_redirection &&
+      (tunnel.postbuf && tunnel.postbuf->postdata_copy_buffer_start != NULL &&
+       tunnel.postbuf->postdata_producer_buffer != NULL)) {
+    post_redirect = true;
+    //copy the post data into a new producer buffer for static producer
+    tunnel.postbuf->postdata_producer_buffer->write(tunnel.postbuf->postdata_copy_buffer_start);
+    int64_t post_bytes = tunnel.postbuf->postdata_producer_reader->read_avail();
+    transfered_bytes = post_bytes;
+    p = tunnel.add_producer(HTTP_TUNNEL_STATIC_PRODUCER,
+                            post_bytes,
+                            tunnel.postbuf->postdata_producer_reader,
+                            (HttpProducerHandler) NULL, HT_STATIC, "redirect static agent post");
+    // the tunnel has taken over the buffer and will free it
+    tunnel.postbuf->postdata_producer_buffer = NULL;
+    tunnel.postbuf->postdata_producer_reader = NULL;
+  } else {
+    int64_t alloc_index;
+    // content length is undefined, use default buffer size
+    if (t_state.hdr_info.request_content_length == HTTP_UNDEFINED_CL) {
+      alloc_index = (int) t_state.txn_conf->default_buffer_size_index;
+      if (alloc_index<MIN_CONFIG_BUFFER_SIZE_INDEX || alloc_index> MAX_BUFFER_SIZE_INDEX) {
+        alloc_index = DEFAULT_REQUEST_BUFFER_SIZE_INDEX;
+      }
+    } else {
+      alloc_index = buffer_size_to_index(t_state.hdr_info.request_content_length);
+    }
+    MIOBuffer *post_buffer = new_MIOBuffer(alloc_index);
+    IOBufferReader *buf_start = post_buffer->alloc_reader();
+    int64_t post_bytes = chunked ? INT64_MAX : t_state.hdr_info.request_content_length;
+
+    t_state.hdr_info.request_body_start = true;
+    // Note: Many browsers, Netscape and IE included send two extra
+    //  bytes (CRLF) at the end of the post.  We just ignore those
+    //  bytes since the sending them is not spec
+
+    // Next order of business if copy the remaining data from the
+    //  header buffer into new buffer
+    //
+
+    client_request_body_bytes = post_buffer->write(ua_buffer_reader, chunked ? ua_buffer_reader->read_avail() : post_bytes);
+    ua_buffer_reader->consume(client_request_body_bytes);
+    p = tunnel.add_producer(ua_entry->vc, post_bytes - transfered_bytes, buf_start,
+                            &HttpSM::tunnel_handler_post_ua, HT_HTTP_CLIENT, "user agent post");
+  }
+  ua_entry->in_tunnel = true;
+
+  switch (to_vc_type) {
+  case HTTP_TRANSFORM_VC:
+    HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_request_wait_for_transform_read);
+    ink_assert(post_transform_info.entry != NULL);
+    ink_assert(post_transform_info.entry->vc == post_transform_info.vc);
+    tunnel.add_consumer(post_transform_info.entry->vc,
+                        ua_entry->vc, &HttpSM::tunnel_handler_transform_write, HT_TRANSFORM, "post transform");
+    post_transform_info.entry->in_tunnel = true;
+    break;
+  case HTTP_SERVER_VC:
+    //YTS Team, yamsat Plugin
+    //When redirect in process is true and redirection is enabled
+    //add http server as the consumer
+    if (post_redirect) {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler_for_partial_post);
+      tunnel.add_consumer(server_entry->vc,
+                          HTTP_TUNNEL_STATIC_PRODUCER,
+                          &HttpSM::tunnel_handler_post_server, HT_HTTP_SERVER, "redirect http server post");
+    } else {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler_post);
+      tunnel.add_consumer(server_entry->vc,
+                          ua_entry->vc, &HttpSM::tunnel_handler_post_server, HT_HTTP_SERVER, "http server post");
+    }
+    server_entry->in_tunnel = true;
+    break;
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  if (chunked)
+    tunnel.set_producer_chunking_action(p, 0, TCA_PASSTHRU_CHUNKED_CONTENT);
+
+  tunnel.tunnel_run(p);
+}
+
+// void HttpSM::perform_transform_cache_write_action()
+//
+//   Called to do cache write from the transform
+//
+void
+HttpSM::perform_transform_cache_write_action()
+{
+  DebugSM("http", "[%" PRId64 "] perform_transform_cache_write_action %s", sm_id,
+        HttpDebugNames::get_cache_action_name(t_state.cache_info.action));
+
+  if (t_state.range_setup)
+    return;
+
+  switch (t_state.cache_info.transform_action) {
+  case HttpTransact::CACHE_DO_NO_ACTION:
+    {
+      // Nothing to do
+      transform_cache_sm.end_both();
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_WRITE:
+    {
+      transform_cache_sm.close_read();
+      t_state.cache_info.transform_write_status = HttpTransact::CACHE_WRITE_IN_PROGRESS;
+      setup_cache_write_transfer(&transform_cache_sm,
+                                 transform_info.entry->vc,
+                                 &t_state.cache_info.transform_store, client_response_hdr_bytes, "cache write t");
+      break;
+    }
+
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+}
+
+// void HttpSM::perform_cache_write_action()
+//
+//   Called to do cache write, delete and updates based
+//    on s->cache_info.action.  Does not setup cache
+//    read tunnels
+//
+void
+HttpSM::perform_cache_write_action()
+{
+  DebugSM("http", "[%" PRId64 "] perform_cache_write_action %s",
+        sm_id, HttpDebugNames::get_cache_action_name(t_state.cache_info.action));
+
+  switch (t_state.cache_info.action) {
+  case HttpTransact::CACHE_DO_NO_ACTION:
+
+    {
+      // Nothing to do
+      cache_sm.end_both();
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_SERVE:
+    {
+      cache_sm.abort_write();
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_DELETE:
+    {
+      // Write close deletes the old alternate
+      cache_sm.close_write();
+      cache_sm.close_read();
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_SERVE_AND_DELETE:
+    {
+      // FIX ME: need to set up delete for after cache write has
+      //   completed
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_SERVE_AND_UPDATE:
+    {
+      issue_cache_update();
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_UPDATE:
+    {
+      cache_sm.close_read();
+      issue_cache_update();
+      break;
+    }
+
+  case HttpTransact::CACHE_DO_WRITE:
+  case HttpTransact::CACHE_DO_REPLACE:
+    // Fix need to set up delete for after cache write has
+    //   completed
+    if (transform_info.entry == NULL || t_state.api_info.cache_untransformed == true) {
+      cache_sm.close_read();
+      t_state.cache_info.write_status = HttpTransact::CACHE_WRITE_IN_PROGRESS;
+      setup_cache_write_transfer(&cache_sm,
+                                 server_entry->vc,
+                                 &t_state.cache_info.object_store, client_response_hdr_bytes, "cache write");
+    } else {
+      // We are not caching the untransformed.  We might want to
+      //  use the cache writevc to cache the transformed copy
+      ink_assert(transform_cache_sm.cache_write_vc == NULL);
+      transform_cache_sm.cache_write_vc = cache_sm.cache_write_vc;
+      cache_sm.cache_write_vc = NULL;
+    }
+    break;
+
+  default:
+    ink_release_assert(0);
+    break;
+  }
+}
+
+
+void
+HttpSM::issue_cache_update()
+{
+  ink_assert(cache_sm.cache_write_vc != NULL);
+  if (cache_sm.cache_write_vc) {
+    t_state.cache_info.object_store.request_sent_time_set(t_state.request_sent_time);
+    t_state.cache_info.object_store.response_received_time_set(t_state.response_received_time);
+    ink_assert(t_state.cache_info.object_store.request_sent_time_get() > 0);
+    ink_assert(t_state.cache_info.object_store.response_received_time_get() > 0);
+    cache_sm.cache_write_vc->set_http_info(&t_state.cache_info.object_store);
+    t_state.cache_info.object_store.clear();
+  }
+  // Now close the write which commits the update
+  cache_sm.close_write();
+}
+
+int
+HttpSM::write_header_into_buffer(HTTPHdr * h, MIOBuffer * b)
+{
+  int bufindex;
+  int dumpoffset;
+  int done, tmp;
+  IOBufferBlock *block;
+
+  dumpoffset = 0;
+  do {
+    bufindex = 0;
+    tmp = dumpoffset;
+    block = b->get_current_block();
+    ink_assert(block->write_avail() > 0);
+    done = h->print(block->start(), block->write_avail(), &bufindex, &tmp);
+    dumpoffset += bufindex;
+    ink_assert(bufindex > 0);
+    b->fill(bufindex);
+    if (!done) {
+      b->add_block();
+    }
+  } while (!done);
+
+  return dumpoffset;
+}
+
+void
+HttpSM::attach_server_session(HttpServerSession * s)
+{
+  hsm_release_assert(server_session == NULL);
+  hsm_release_assert(server_entry == NULL);
+  hsm_release_assert(s->state == HSS_ACTIVE);
+  server_session = s;
+  server_session->transact_count++;
+
+  // Set the mutex so that we have something to update
+  //   stats with
+  server_session->mutex = this->mutex;
+
+  HTTP_INCREMENT_DYN_STAT(http_current_server_transactions_stat);
+  ++s->server_trans_stat;
+
+  // Record the VC in our table
+  server_entry = vc_table.new_entry();
+  server_entry->vc = server_session;
+  server_entry->vc_type = HTTP_SERVER_VC;
+  server_entry->vc_handler = &HttpSM::state_send_server_request_header;
+
+  // Initiate a read on the session so that the SM and not
+  //  session manager will get called back if the timeout occurs
+  //  or the server closes on us.  The IO Core now requires us to
+  //  do the read with a buffer and a size so preallocate the
+  //  buffer
+  server_buffer_reader = server_session->get_reader();
+  server_entry->read_vio = server_session->do_io_read(this, INT64_MAX, server_session->read_buffer);
+
+  // This call cannot be canceled or disabled on Windows at a different
+  // time (callstack). After this function, all transactions will send
+  // a request to the origin server. It is possible that read events
+  // for the response come in before the write events for sending the
+  // request itself. In state_send_server_request(), we try to disable
+  // reading until writing the request completed. That turned out to be
+  // for the second do_io_read(), the way to reenable() reading once
+  // disabled, but still the result of this do_io_read came in. For this
+  // read holds: server_entry->read_vio == INT64_MAX
+  // This block of read events gets undone in setup_server_read_response()
+
+  // Transfer control of the write side as well
+  server_session->do_io_write(this, 0, NULL);
+
+  // Setup the timeouts
+  // Set the inactivity timeout to the connect timeout so that we
+  //   we fail this server if it doesn't start sending the response
+  //   header
+  MgmtInt connect_timeout;
+
+  if (t_state.method == HTTP_WKSIDX_POST || t_state.method == HTTP_WKSIDX_PUT) {
+    connect_timeout = t_state.txn_conf->post_connect_attempts_timeout;
+  } else if (t_state.current.server == &t_state.parent_info) {
+    connect_timeout = t_state.http_config_param->parent_connect_timeout;
+  } else {
+    connect_timeout = t_state.txn_conf->connect_attempts_timeout;
+  }
+  if (t_state.pCongestionEntry != NULL)
+    connect_timeout = t_state.pCongestionEntry->connect_timeout();
+
+  if (t_state.api_txn_connect_timeout_value != -1) {
+    server_session->get_netvc()->set_inactivity_timeout(HRTIME_MSECONDS(t_state.api_txn_connect_timeout_value));
+  } else {
+    server_session->get_netvc()->set_inactivity_timeout(HRTIME_SECONDS(connect_timeout));
+  }
+
+  if (t_state.api_txn_active_timeout_value != -1) {
+    server_session->get_netvc()->set_active_timeout(HRTIME_MSECONDS(t_state.api_txn_active_timeout_value));
+  } else {
+    server_session->get_netvc()->set_active_timeout(HRTIME_SECONDS(t_state.txn_conf->transaction_active_timeout_out));
+  }
+
+  if (plugin_tunnel_type != HTTP_NO_PLUGIN_TUNNEL) {
+    server_session->private_session = true;
+  }
+}
+
+void
+HttpSM::setup_server_send_request_api()
+{
+  t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_REQUEST_HDR;
+  do_api_callout();
+}
+
+void
+HttpSM::setup_server_send_request()
+{
+  int hdr_length;
+  int64_t msg_len = 0;  /* lv: just make gcc happy */
+
+  hsm_release_assert(server_entry != NULL);
+  hsm_release_assert(server_session != NULL);
+  hsm_release_assert(server_entry->vc == server_session);
+
+  // Send the request header
+  server_entry->vc_handler = &HttpSM::state_send_server_request_header;
+  server_entry->write_buffer = new_MIOBuffer(HTTP_HEADER_BUFFER_SIZE_INDEX);
+
+  if (t_state.api_server_request_body_set) {
+    msg_len = t_state.internal_msg_buffer_size;
+    t_state.hdr_info.server_request.value_set_int64(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH, msg_len);
+  }
+  DUMP_HEADER("http_hdrs", &(t_state.hdr_info.server_request), t_state.state_machine_id, "Proxy's Request after hooks");
+  // We need a reader so bytes don't fall off the end of
+  //  the buffer
+  IOBufferReader *buf_start = server_entry->write_buffer->alloc_reader();
+  server_request_hdr_bytes = hdr_length =
+    write_header_into_buffer(&t_state.hdr_info.server_request, server_entry->write_buffer);
+
+  // the plugin decided to append a message to the request
+  if (t_state.api_server_request_body_set) {
+    DebugSM("http", "[%" PRId64 "] appending msg of %" PRId64" bytes to request %s", sm_id, msg_len, t_state.internal_msg_buffer);
+    hdr_length += server_entry->write_buffer->write(t_state.internal_msg_buffer, msg_len);
+    server_request_body_bytes = msg_len;
+  }
+  // If we are sending authorizations headers, mark the connection private
+  if (t_state.hdr_info.server_request.presence(MIME_PRESENCE_AUTHORIZATION | MIME_PRESENCE_PROXY_AUTHORIZATION
+					       | MIME_PRESENCE_WWW_AUTHENTICATE)) {
+      server_session->private_session = true;
+  }
+  milestones.server_begin_write = ink_get_hrtime();
+  server_entry->write_vio = server_entry->vc->do_io_write(this, hdr_length, buf_start);
+}
+
+void
+HttpSM::setup_server_read_response_header()
+{
+  ink_assert(server_session != NULL);
+  ink_assert(server_entry != NULL);
+  // REQ_FLAVOR_SCHEDULED_UPDATE can be transformed in REQ_FLAVOR_REVPROXY
+  ink_assert(ua_session != NULL ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE ||
+             t_state.req_flavor == HttpTransact::REQ_FLAVOR_REVPROXY);
+
+  // We should have set the server_buffer_reader
+  //   we sent the request header
+  ink_assert(server_buffer_reader != NULL);
+
+  // Now that we've got the ability to read from the
+  //  server, setup to read the response header
+  server_entry->vc_handler = &HttpSM::state_read_server_response_header;
+
+  t_state.current.state = HttpTransact::STATE_UNDEFINED;
+  t_state.current.server->state = HttpTransact::STATE_UNDEFINED;
+
+  // Note: we must use destroy() here since clear()
+  //  does not free the memory from the header
+  t_state.hdr_info.server_response.destroy();
+  t_state.hdr_info.server_response.create(HTTP_TYPE_RESPONSE);
+  http_parser_clear(&http_parser);
+  server_response_hdr_bytes = 0;
+  milestones.server_read_header_done = 0;
+
+  // We already done the READ when we setup the connection to
+  //   read the request header
+  ink_assert(server_entry->read_vio);
+
+  // If there is anything in the buffer call the parsing routines
+  //  since if the response is finished, we won't get any
+  //  additional callbacks
+
+  //UnixNetVConnection * vc = (UnixNetVConnection*)(ua_session->client_vc);
+  //UnixNetVConnection * my_server_vc = (UnixNetVConnection*)(server_session->get_netvc());
+  if (server_buffer_reader->read_avail() > 0) {
+    if (server_entry->eos) {
+      /*printf("data already in the buffer, calling state_read_server_response_header with VC_EVENT_EOS client fd: %d and server fd : %d\n",
+         vc->con.fd,my_server_vc->con.fd); */
+      state_read_server_response_header(VC_EVENT_EOS, server_entry->read_vio);
+    } else {
+      /*printf("data alreadyclient_vc in the buffer, calling state_read_server_response_header with VC_EVENT_READ_READY fd: %d and server fd : %d\n",
+         vc->con.fd,my_server_vc->con.fd); */
+      state_read_server_response_header(VC_EVENT_READ_READY, server_entry->read_vio);
+    }
+  }
+  // It is possible the header was already in the buffer and the
+  //   IO on for read disabled.  This would happen if 1) the response
+  //   header was received before the 'request sent' callback happened
+  //   (or before a post body was sent) OR  2) we were parsing a 100
+  //   continue response and are now parsing next response header
+  //   If only part of the header was in the buffer we need to do more IO
+  //   to get the rest of it.  If the whole header is in the buffer then we don't
+  //   want additional IO since we'll be issuing another read for body tunnel
+  //   and can't switch buffers at that point since we won't be on the read
+  //   callback
+  if (server_entry != NULL) {
+    if (t_state.current.server->state == HttpTransact::STATE_UNDEFINED &&
+        server_entry->read_vio->nbytes == server_entry->read_vio->ndone &&
+        milestones.server_read_header_done == 0) {
+      ink_assert(server_entry->eos == false);
+      server_entry->read_vio = server_session->do_io_read(this, INT64_MAX, server_buffer_reader->mbuf);
+    }
+  }
+}
+
+void
+HttpSM::setup_cache_read_transfer()
+{
+  int64_t alloc_index, hdr_size;
+  int64_t doc_size;
+
+  ink_assert(cache_sm.cache_read_vc != NULL);
+
+  doc_size = t_state.cache_info.object_read->object_size_get();
+  alloc_index = buffer_size_to_index(doc_size + index_to_buffer_size(HTTP_HEADER_BUFFER_SIZE_INDEX));
+
+#ifndef USE_NEW_EMPTY_MIOBUFFER
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+#else
+  MIOBuffer *buf = new_empty_MIOBuffer(alloc_index);
+  buf->append_block(HTTP_HEADER_BUFFER_SIZE_INDEX);
+#endif
+
+  buf->water_mark = (int) t_state.txn_conf->default_buffer_water_mark;
+
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  // Now dump the header into the buffer
+  ink_assert(t_state.hdr_info.client_response.status_get() != HTTP_STATUS_NOT_MODIFIED);
+  client_response_hdr_bytes = hdr_size = write_response_header_into_buffer(&t_state.hdr_info.client_response, buf);
+  cache_response_hdr_bytes = client_response_hdr_bytes;
+
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler);
+
+  if (doc_size != INT64_MAX)
+    doc_size += hdr_size;
+
+  HttpTunnelProducer *p = tunnel.add_producer(cache_sm.cache_read_vc,
+                                              doc_size, buf_start, &HttpSM::tunnel_handler_cache_read, HT_CACHE_READ,
+                                              "cache read");
+  tunnel.add_consumer(ua_entry->vc, cache_sm.cache_read_vc, &HttpSM::tunnel_handler_ua, HT_HTTP_CLIENT, "user agent");
+  // if size of a cached item is not known, we'll do chunking for keep-alive HTTP/1.1 clients
+  // this only applies to read-while-write cases where origin server sends a dynamically generated chunked content
+  // w/o providing a Content-Length header
+  if ( t_state.client_info.receive_chunked_response ) {
+    tunnel.set_producer_chunking_action(p, client_response_hdr_bytes, TCA_CHUNK_CONTENT);
+    tunnel.set_producer_chunking_size(p, t_state.txn_conf->http_chunking_size);
+  }
+  ua_entry->in_tunnel = true;
+  cache_sm.cache_read_vc = NULL;
+}
+
+HttpTunnelProducer *
+HttpSM::setup_cache_transfer_to_transform()
+{
+  int64_t alloc_index;
+  int64_t doc_size;
+
+  ink_assert(cache_sm.cache_read_vc != NULL);
+  ink_assert(transform_info.vc != NULL);
+  ink_assert(transform_info.entry->vc == transform_info.vc);
+
+  // grab this here
+  cache_response_hdr_bytes = t_state.hdr_info.cache_response.length_get();
+
+  doc_size = t_state.cache_info.object_read->object_size_get();
+  alloc_index = buffer_size_to_index(doc_size);
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_response_wait_for_transform_read);
+
+  HttpTunnelProducer *p = tunnel.add_producer(cache_sm.cache_read_vc,
+                                              doc_size,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_cache_read,
+                                              HT_CACHE_READ,
+                                              "cache read");
+
+  tunnel.add_consumer(transform_info.vc,
+                      cache_sm.cache_read_vc, &HttpSM::tunnel_handler_transform_write, HT_TRANSFORM, "transform write");
+  transform_info.entry->in_tunnel = true;
+  cache_sm.cache_read_vc = NULL;
+
+  return p;
+}
+
+void
+HttpSM::setup_cache_write_transfer(HttpCacheSM * c_sm,
+                                   VConnection * source_vc, HTTPInfo * store_info, int64_t skip_bytes, const char *name)
+{
+  ink_assert(c_sm->cache_write_vc != NULL);
+  ink_assert(t_state.request_sent_time > 0);
+  ink_assert(t_state.response_received_time > 0);
+
+  store_info->request_sent_time_set(t_state.request_sent_time);
+  store_info->response_received_time_set(t_state.response_received_time);
+
+  c_sm->cache_write_vc->set_http_info(store_info);
+  store_info->clear();
+
+  tunnel.add_consumer(c_sm->cache_write_vc,
+                      source_vc, &HttpSM::tunnel_handler_cache_write, HT_CACHE_WRITE, name, skip_bytes);
+
+  c_sm->cache_write_vc = NULL;
+}
+
+void
+HttpSM::setup_100_continue_transfer()
+{
+  MIOBuffer *buf = new_MIOBuffer(HTTP_HEADER_BUFFER_SIZE_INDEX);
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  // First write the client response header into the buffer
+  ink_assert(t_state.client_info.http_version != HTTPVersion(0, 9));
+  client_response_hdr_bytes = write_header_into_buffer(&t_state.hdr_info.client_response, buf);
+  ink_assert(client_response_hdr_bytes > 0);
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler_100_continue);
+
+  // Setup the tunnel to the client
+  tunnel.add_producer(HTTP_TUNNEL_STATIC_PRODUCER,
+                      client_response_hdr_bytes,
+                      buf_start, (HttpProducerHandler) NULL, HT_STATIC, "internal msg - 100 continue");
+  tunnel.add_consumer(ua_entry->vc,
+                      HTTP_TUNNEL_STATIC_PRODUCER,
+                      &HttpSM::tunnel_handler_100_continue_ua, HT_HTTP_CLIENT, "user agent");
+
+  ua_entry->in_tunnel = true;
+  tunnel.tunnel_run();
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::setup_error_transfer()
+//
+//  The proxy has generated an error message which it
+//  is sending to the client. For some cases, however,
+//  such as when the proxy is transparent, returning
+//  a proxy-generated error message exposes the proxy,
+//  destroying transparency. The HttpBodyFactory code,
+//  therefore, does not generate an error message body
+//  in such cases. This function checks for the presence
+//  of an error body. If its not present, it closes the
+//  connection to the user, else it simply calls
+//  setup_write_proxy_internal, which is the standard
+//  routine for setting up proxy-generated responses.
+//
+//////////////////////////////////////////////////////////////////////////
+void
+HttpSM::setup_error_transfer()
+{
+  if (t_state.internal_msg_buffer) {
+    // Since we need to send the error message, call the API
+    //   function
+    ink_assert(t_state.internal_msg_buffer_size > 0);
+    t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+    do_api_callout();
+  } else {
+    DebugSM("http", "[setup_error_transfer] Now closing connection ...");
+    vc_table.cleanup_entry(ua_entry);
+    ua_entry = NULL;
+    ua_session = NULL;
+    terminate_sm = true;
+    t_state.source = HttpTransact::SOURCE_INTERNAL;
+  }
+}
+
+void
+HttpSM::setup_internal_transfer(HttpSMHandler handler_arg)
+{
+  bool is_msg_buf_present;
+
+  if (t_state.internal_msg_buffer) {
+    is_msg_buf_present = true;
+    ink_assert(t_state.internal_msg_buffer_size > 0);
+
+    // Set the content length here since a plugin
+    //   may have changed the error body
+    t_state.hdr_info.client_response.set_content_length(t_state.internal_msg_buffer_size);
+
+    // set internal_msg_buffer_type if available
+    if (t_state.internal_msg_buffer_type) {
+      int len = strlen(t_state.internal_msg_buffer_type);
+
+      if (len > 0) {
+        t_state.hdr_info.client_response.value_set(MIME_FIELD_CONTENT_TYPE,
+                                                   MIME_LEN_CONTENT_TYPE,
+                                                   t_state.internal_msg_buffer_type, len);
+      }
+      ats_free(t_state.internal_msg_buffer_type);
+      t_state.internal_msg_buffer_type = NULL;
+    } else {
+      t_state.hdr_info.client_response.value_set(MIME_FIELD_CONTENT_TYPE,
+                                                 MIME_LEN_CONTENT_TYPE,
+                                                 "text/html", 9);
+    }
+  } else {
+    is_msg_buf_present = false;
+
+    // If we are sending a response that can have a body
+    //   but doesn't have a body add a content-length of zero.
+    //   Needed for keep-alive on PURGE requests
+    if (!is_response_body_precluded(t_state.hdr_info.client_response.status_get(), t_state.method)) {
+      t_state.hdr_info.client_response.set_content_length(0);
+    }
+  }
+
+  t_state.source = HttpTransact::SOURCE_INTERNAL;
+
+  int64_t buf_size = index_to_buffer_size(HTTP_HEADER_BUFFER_SIZE_INDEX) + (is_msg_buf_present ? t_state.internal_msg_buffer_size : 0);
+
+  MIOBuffer *buf = new_MIOBuffer(buffer_size_to_index(buf_size));
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  // First write the client response header into the buffer
+  client_response_hdr_bytes = write_response_header_into_buffer(&t_state.hdr_info.client_response, buf);
+  int64_t nbytes = client_response_hdr_bytes;
+
+  // Next append the message onto the MIOBuffer
+
+  // From HTTP/1.1 RFC:
+  // "The HEAD method is identical to GET except that the server
+  // MUST NOT return a message-body in the response. The metainformation
+  // in the HTTP headers in response to a HEAD request SHOULD be
+  // identical to the information sent in response to a GET request."
+  // --> do not append the message onto the MIOBuffer and keep our pointer
+  // to it so that it can be freed.
+
+  if (is_msg_buf_present && t_state.method != HTTP_WKSIDX_HEAD) {
+    nbytes += t_state.internal_msg_buffer_size;
+
+    if (t_state.internal_msg_buffer_fast_allocator_size < 0)
+      buf->append_xmalloced(t_state.internal_msg_buffer, t_state.internal_msg_buffer_size);
+    else
+      buf->append_fast_allocated(t_state.internal_msg_buffer,
+                                 t_state.internal_msg_buffer_size, t_state.internal_msg_buffer_fast_allocator_size);
+
+
+    // The IOBufferBlock will xfree the msg buffer when necessary so
+    //  eliminate our pointer to it
+    t_state.internal_msg_buffer = NULL;
+    t_state.internal_msg_buffer_size = 0;
+  }
+
+
+  HTTP_SM_SET_DEFAULT_HANDLER(handler_arg);
+
+  // Setup the tunnel to the client
+  tunnel.add_producer(HTTP_TUNNEL_STATIC_PRODUCER,
+                      nbytes, buf_start, (HttpProducerHandler) NULL, HT_STATIC, "internal msg");
+  tunnel.add_consumer(ua_entry->vc,
+                      HTTP_TUNNEL_STATIC_PRODUCER, &HttpSM::tunnel_handler_ua, HT_HTTP_CLIENT, "user agent");
+
+  ua_entry->in_tunnel = true;
+  tunnel.tunnel_run();
+}
+
+// int HttpSM::find_http_resp_buffer_size(int cl)
+//
+//   Returns the allocation index for the buffer for
+//     a response based on the content length
+//
+int
+HttpSM::find_http_resp_buffer_size(int64_t content_length)
+{
+  int64_t buf_size;
+  int64_t alloc_index;
+
+  if (content_length == HTTP_UNDEFINED_CL) {
+    // Try use our configured default size.  Otherwise pick
+    //   the default size
+    alloc_index = (int) t_state.txn_conf->default_buffer_size_index;
+    if (alloc_index<MIN_CONFIG_BUFFER_SIZE_INDEX || alloc_index> DEFAULT_MAX_BUFFER_SIZE) {
+      alloc_index = DEFAULT_RESPONSE_BUFFER_SIZE_INDEX;
+    }
+  } else {
+#ifdef WRITE_AND_TRANSFER
+    buf_size = HTTP_HEADER_BUFFER_SIZE + content_length - index_to_buffer_size(HTTP_SERVER_RESP_HDR_BUFFER_INDEX);
+#else
+    buf_size = index_to_buffer_size(HTTP_HEADER_BUFFER_SIZE_INDEX) + content_length;
+#endif
+    alloc_index = buffer_size_to_index(buf_size);
+  }
+
+  return alloc_index;
+}
+
+// int HttpSM::server_transfer_init()
+//
+//    Moves data from the header buffer into the reply buffer
+//      and return the number of bytes we should use for initiating the
+//      tunnel
+//
+int64_t
+HttpSM::server_transfer_init(MIOBuffer * buf, int hdr_size)
+{
+  int64_t nbytes;
+  int64_t to_copy = INT64_MAX;
+
+  if (server_entry->eos == true) {
+    // The server has shutdown on us already so the only data
+    //  we'll get is already in the buffer
+    nbytes = server_buffer_reader->read_avail() + hdr_size;
+  } else if (t_state.hdr_info.response_content_length == HTTP_UNDEFINED_CL) {
+    nbytes = -1;
+  } else {
+    //  Set to copy to the number of bytes we want to write as
+    //  if the server is sending us a bogus response we have to
+    //  truncate it as we've already decided to trust the content
+    //  length
+    to_copy = t_state.hdr_info.response_content_length;
+    nbytes = t_state.hdr_info.response_content_length + hdr_size;
+  }
+
+  // Next order of business if copy the remaining data from the
+  //  header buffer into new buffer.
+
+  int64_t server_response_pre_read_bytes =
+#ifdef WRITE_AND_TRANSFER
+    /* relinquish the space in server_buffer and let
+       the tunnel use the trailing space
+     */
+    buf->write_and_transfer_left_over_space(server_buffer_reader, to_copy);
+#else
+    buf->write(server_buffer_reader, to_copy);
+#endif
+  server_buffer_reader->consume(server_response_pre_read_bytes);
+
+  //  If we know the length & copied the entire body
+  //   of the document out of the header buffer make
+  //   sure the server isn't screwing us by having sent too
+  //   much.  If it did, we want to close the server connection
+  if (server_response_pre_read_bytes == to_copy && server_buffer_reader->read_avail() > 0) {
+    t_state.current.server->keep_alive = HTTP_NO_KEEPALIVE;
+  }
+#ifdef LAZY_BUF_ALLOC
+  // reset the server session buffer
+  server_session->reset_read_buffer();
+#endif
+  return nbytes;
+}
+
+HttpTunnelProducer *
+HttpSM::setup_server_transfer_to_transform()
+{
+  int64_t alloc_index;
+  int64_t nbytes;
+
+  alloc_index = find_server_buffer_size();
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+  IOBufferReader *buf_start = buf->alloc_reader();
+  nbytes = server_transfer_init(buf, 0);
+
+  if (t_state.negative_caching && t_state.hdr_info.server_response.status_get() == HTTP_STATUS_NO_CONTENT) {
+    int s = sizeof("No Content") - 1;
+    buf->write("No Content", s);
+    nbytes += s;
+  }
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_response_wait_for_transform_read);
+
+  HttpTunnelProducer *p = tunnel.add_producer(server_entry->vc,
+                                              nbytes,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_server,
+                                              HT_HTTP_SERVER,
+                                              "http server");
+
+  tunnel.add_consumer(transform_info.vc,
+                      server_entry->vc, &HttpSM::tunnel_handler_transform_write, HT_TRANSFORM, "transform write");
+
+  server_entry->in_tunnel = true;
+  transform_info.entry->in_tunnel = true;
+
+  if (t_state.current.server->transfer_encoding == HttpTransact::CHUNKED_ENCODING) {
+    client_response_hdr_bytes = 0;      // fixed by YTS Team, yamsat
+    tunnel.set_producer_chunking_action(p, client_response_hdr_bytes, TCA_DECHUNK_CONTENT);
+  }
+
+  return p;
+}
+
+HttpTunnelProducer *
+HttpSM::setup_transfer_from_transform()
+{
+  int64_t alloc_index = find_server_buffer_size();
+
+  // TODO change this call to new_empty_MIOBuffer()
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+  buf->water_mark = (int) t_state.txn_conf->default_buffer_water_mark;
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  HttpTunnelConsumer *c = tunnel.get_consumer(transform_info.vc);
+  ink_assert(c != NULL);
+  ink_assert(c->vc == transform_info.vc);
+  ink_assert(c->vc_type == HT_TRANSFORM);
+
+  // Now dump the header into the buffer
+  ink_assert(t_state.hdr_info.client_response.status_get() != HTTP_STATUS_NOT_MODIFIED);
+  client_response_hdr_bytes = write_response_header_into_buffer(&t_state.hdr_info.client_response, buf);
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler);
+
+  HttpTunnelProducer *p = tunnel.add_producer(transform_info.vc,
+                                              INT64_MAX,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_transform_read,
+                                              HT_TRANSFORM,
+                                              "transform read");
+  tunnel.chain(c, p);
+
+  tunnel.add_consumer(ua_entry->vc, transform_info.vc, &HttpSM::tunnel_handler_ua, HT_HTTP_CLIENT, "user agent");
+
+  transform_info.entry->in_tunnel = true;
+  ua_entry->in_tunnel = true;
+
+  this->setup_plugin_agents(p);
+
+  if ( t_state.client_info.receive_chunked_response ) {
+    tunnel.set_producer_chunking_action(p, client_response_hdr_bytes, TCA_CHUNK_CONTENT);
+    tunnel.set_producer_chunking_size(p, t_state.txn_conf->http_chunking_size);
+  }
+
+  return p;
+}
+
+
+HttpTunnelProducer *
+HttpSM::setup_transfer_from_transform_to_cache_only()
+{
+  int64_t alloc_index = find_server_buffer_size();
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  HttpTunnelConsumer *c = tunnel.get_consumer(transform_info.vc);
+  ink_assert(c != NULL);
+  ink_assert(c->vc == transform_info.vc);
+  ink_assert(c->vc_type == HT_TRANSFORM);
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler);
+
+  HttpTunnelProducer *p = tunnel.add_producer(transform_info.vc,
+                                              INT64_MAX,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_transform_read,
+                                              HT_TRANSFORM,
+                                              "transform read");
+  tunnel.chain(c, p);
+
+  transform_info.entry->in_tunnel = true;
+
+  ink_assert(t_state.cache_info.transform_action == HttpTransact::CACHE_DO_WRITE);
+
+  perform_transform_cache_write_action();
+
+  return p;
+}
+
+void
+HttpSM::setup_server_transfer_to_cache_only()
+{
+  TunnelChunkingAction_t action;
+  int64_t alloc_index;
+  int64_t nbytes;
+
+  alloc_index = find_server_buffer_size();
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  action = (t_state.current.server && t_state.current.server->transfer_encoding == HttpTransact::CHUNKED_ENCODING) ?
+    TCA_DECHUNK_CONTENT : TCA_PASSTHRU_DECHUNKED_CONTENT;
+
+  nbytes = server_transfer_init(buf, 0);
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler);
+
+  HttpTunnelProducer *p = tunnel.add_producer(server_entry->vc,
+                                              nbytes,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_server,
+                                              HT_HTTP_SERVER,
+                                              "http server");
+
+  tunnel.set_producer_chunking_action(p, 0, action);
+  tunnel.set_producer_chunking_size(p, t_state.txn_conf->http_chunking_size);
+
+  setup_cache_write_transfer(&cache_sm, server_entry->vc, &t_state.cache_info.object_store, 0, "cache write");
+
+  server_entry->in_tunnel = true;
+}
+
+void
+HttpSM::setup_server_transfer()
+{
+  DebugSM("http", "Setup Server Transfer");
+  int64_t alloc_index, hdr_size;
+  int64_t nbytes;
+
+  alloc_index = find_server_buffer_size();
+#ifndef USE_NEW_EMPTY_MIOBUFFER
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+#else
+  MIOBuffer *buf = new_empty_MIOBuffer(alloc_index);
+  buf->append_block(HTTP_HEADER_BUFFER_SIZE_INDEX);
+#endif
+  buf->water_mark = (int) t_state.txn_conf->default_buffer_water_mark;
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  // we need to know if we are going to chunk the response or not
+  // before we write the response header into buffer
+  TunnelChunkingAction_t action;
+  if (t_state.client_info.receive_chunked_response == false) {
+    if (t_state.current.server->transfer_encoding == HttpTransact::CHUNKED_ENCODING)
+      action = TCA_DECHUNK_CONTENT;
+    else
+      action = TCA_PASSTHRU_DECHUNKED_CONTENT;
+  } else {
+    if (t_state.current.server->transfer_encoding != HttpTransact::CHUNKED_ENCODING)
+      if (t_state.client_info.http_version == HTTPVersion(0, 9))
+        action = TCA_PASSTHRU_DECHUNKED_CONTENT; // send as-is
+      else
+        action = TCA_CHUNK_CONTENT;
+    else
+      action = TCA_PASSTHRU_CHUNKED_CONTENT;
+  }
+  if (action == TCA_CHUNK_CONTENT || action == TCA_PASSTHRU_CHUNKED_CONTENT) {  // remove Content-Length
+    t_state.hdr_info.client_response.field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+  }
+  // Now dump the header into the buffer
+  ink_assert(t_state.hdr_info.client_response.status_get() != HTTP_STATUS_NOT_MODIFIED);
+  client_response_hdr_bytes = hdr_size = write_response_header_into_buffer(&t_state.hdr_info.client_response, buf);
+
+  nbytes = server_transfer_init(buf, hdr_size);
+
+  if (t_state.negative_caching && t_state.hdr_info.server_response.status_get() == HTTP_STATUS_NO_CONTENT) {
+    int s = sizeof("No Content") - 1;
+    buf->write("No Content", s);
+    nbytes += s;
+  }
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler);
+
+  HttpTunnelProducer *p = tunnel.add_producer(server_entry->vc,
+                                              nbytes,
+                                              buf_start,
+                                              &HttpSM::tunnel_handler_server,
+                                              HT_HTTP_SERVER,
+                                              "http server");
+
+  tunnel.add_consumer(ua_entry->vc, server_entry->vc, &HttpSM::tunnel_handler_ua, HT_HTTP_CLIENT, "user agent");
+
+  ua_entry->in_tunnel = true;
+  server_entry->in_tunnel = true;
+
+  this->setup_plugin_agents(p);
+
+  // If the incoming server response is chunked and the client does not
+  // expect a chunked response, then dechunk it.  Otherwise, if the
+  // incoming response is not chunked and the client expects a chunked
+  // response, then chunk it.
+  /*
+     // this block is moved up so that we know if we need to remove
+     // Content-Length field from response header before writing the
+     // response header into buffer bz50730
+     TunnelChunkingAction_t action;
+     if (t_state.client_info.receive_chunked_response == false) {
+     if (t_state.current.server->transfer_encoding ==
+     HttpTransact::CHUNKED_ENCODING)
+     action = TCA_DECHUNK_CONTENT;
+     else action = TCA_PASSTHRU_DECHUNKED_CONTENT;
+     }
+     else {
+     if (t_state.current.server->transfer_encoding !=
+     HttpTransact::CHUNKED_ENCODING)
+     action = TCA_CHUNK_CONTENT;
+     else action = TCA_PASSTHRU_CHUNKED_CONTENT;
+     }
+   */
+  tunnel.set_producer_chunking_action(p, client_response_hdr_bytes, action);
+  tunnel.set_producer_chunking_size(p, t_state.txn_conf->http_chunking_size);
+}
+
+void
+HttpSM::setup_push_transfer_to_cache()
+{
+  int64_t nbytes, alloc_index;
+
+  alloc_index = find_http_resp_buffer_size(t_state.hdr_info.request_content_length);
+  MIOBuffer *buf = new_MIOBuffer(alloc_index);
+  IOBufferReader *buf_start = buf->alloc_reader();
+
+  ink_release_assert(t_state.hdr_info.request_content_length != HTTP_UNDEFINED_CL);
+  nbytes = t_state.hdr_info.request_content_length - pushed_response_hdr_bytes;
+  ink_release_assert(nbytes >= 0);
+
+  if (ua_entry->eos == true) {
+    // The ua has shutdown on us already so the only data
+    //  we'll get is already in the buffer.  Make sure it
+    //  fulfills the stated length
+    int64_t avail = ua_buffer_reader->read_avail();
+
+    if (avail < nbytes) {
+      // Client failed to send the body, it's gone.  Kill the
+      // state machine
+      terminate_sm = true;
+      return;
+    }
+  }
+  // Next order of business is copy the remaining data from the
+  //  header buffer into new buffer.
+  pushed_response_body_bytes = buf->write(ua_buffer_reader, nbytes);
+  ua_buffer_reader->consume(pushed_response_body_bytes);
+  client_request_body_bytes += pushed_response_body_bytes;
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler_push);
+
+  // TODO: Should we do something with the HttpTunnelProducer* returned?
+  tunnel.add_producer(ua_entry->vc, nbytes, buf_start, &HttpSM::tunnel_handler_ua_push,
+                      HT_HTTP_CLIENT, "user_agent");
+  setup_cache_write_transfer(&cache_sm, ua_entry->vc, &t_state.cache_info.object_store, 0, "cache write");
+
+  ua_entry->in_tunnel = true;
+}
+
+void
+HttpSM::setup_blind_tunnel(bool send_response_hdr)
+{
+  HttpTunnelConsumer *c_ua;
+  HttpTunnelConsumer *c_os;
+  HttpTunnelProducer *p_ua;
+  HttpTunnelProducer *p_os;
+  MIOBuffer *from_ua_buf = new_MIOBuffer(BUFFER_SIZE_INDEX_32K);
+  MIOBuffer *to_ua_buf = new_MIOBuffer(BUFFER_SIZE_INDEX_32K);
+  IOBufferReader *r_from = from_ua_buf->alloc_reader();
+  IOBufferReader *r_to = to_ua_buf->alloc_reader();
+
+  milestones.server_begin_write = ink_get_hrtime();
+  if (send_response_hdr) {
+    client_response_hdr_bytes = write_response_header_into_buffer(&t_state.hdr_info.client_response, to_ua_buf);
+  } else {
+    client_response_hdr_bytes = 0;
+  }
+
+  client_request_body_bytes = 0;
+  if (ua_raw_buffer_reader != NULL) {
+    client_request_body_bytes += from_ua_buf->write(ua_raw_buffer_reader, client_request_hdr_bytes);
+    ua_raw_buffer_reader->dealloc();
+    ua_raw_buffer_reader = NULL;
+  }
+
+  // Next order of business if copy the remaining data from the
+  //  header buffer into new buffer
+  client_request_body_bytes += from_ua_buf->write(ua_buffer_reader);
+
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::tunnel_handler);
+
+  p_os = tunnel.add_producer(server_entry->vc,
+                             -1, r_to, &HttpSM::tunnel_handler_ssl_producer, HT_HTTP_SERVER, "http server - tunnel");
+
+  c_ua = tunnel.add_consumer(ua_entry->vc,
+                             server_entry->vc,
+                             &HttpSM::tunnel_handler_ssl_consumer, HT_HTTP_CLIENT, "user agent - tunnel");
+
+
+  p_ua = tunnel.add_producer(ua_entry->vc,
+                             -1, r_from, &HttpSM::tunnel_handler_ssl_producer, HT_HTTP_CLIENT, "user agent - tunnel");
+
+  c_os = tunnel.add_consumer(server_entry->vc,
+                             ua_entry->vc,
+                             &HttpSM::tunnel_handler_ssl_consumer, HT_HTTP_SERVER, "http server - tunnel");
+
+  // Make the tunnel aware that the entries are bi-directional
+  tunnel.chain(c_os, p_os);
+  tunnel.chain(c_ua, p_ua);
+
+  ua_entry->in_tunnel = true;
+  server_entry->in_tunnel = true;
+
+  tunnel.tunnel_run();
+}
+
+void
+HttpSM::setup_plugin_agents(HttpTunnelProducer* p)
+{
+  APIHook* agent = txn_hook_get(TS_HTTP_RESPONSE_CLIENT_HOOK);
+  has_active_plugin_agents = agent != 0;
+  while (agent) {
+    INKVConnInternal* contp = static_cast<INKVConnInternal*>(agent->m_cont);
+    tunnel.add_consumer(contp, p->vc, &HttpSM::tunnel_handler_plugin_agent, HT_HTTP_CLIENT, "plugin agent");
+    // We don't put these in the SM VC table because the tunnel
+    // will clean them up in do_io_close().
+    agent = agent->next();
+  }
+}
+
+inline void
+HttpSM::transform_cleanup(TSHttpHookID hook, HttpTransformInfo * info)
+{
+  APIHook *t_hook = api_hooks.get(hook);
+  if (t_hook && info->vc == NULL) {
+    do {
+      VConnection *t_vcon = t_hook->m_cont;
+      t_vcon->do_io_close();
+      t_hook = t_hook->m_link.next;
+    } while (t_hook != NULL);
+  }
+}
+
+void
+HttpSM::plugin_agents_cleanup()
+{
+  // If this is set then all of the plugin agent VCs were put in
+  // the VC table and cleaned up there. This handles the case where
+  // something went wrong early.
+  if (!has_active_plugin_agents) {
+    APIHook* agent = txn_hook_get(TS_HTTP_RESPONSE_CLIENT_HOOK);
+    while (agent) {
+      INKVConnInternal* contp = static_cast<INKVConnInternal*>(agent->m_cont);
+      contp->do_io_close();
+      agent = agent->next();
+    }
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::kill_this()
+//
+//  This function has two phases.  One before we call the asynchronous
+//    clean up routines (api and list removal) and one after.
+//    The state about which phase we are in is kept in
+//    HttpSM::kill_this_async_done
+//
+//////////////////////////////////////////////////////////////////////////
+void
+HttpSM::kill_this()
+{
+  ink_release_assert(reentrancy_count == 1);
+  tunnel.deallocate_redirect_postdata_buffers();
+  enable_redirection = false;
+
+  if (kill_this_async_done == false) {
+    ////////////////////////////////
+    // cancel uncompleted actions //
+    ////////////////////////////////
+    // The action should be cancelled only if
+    // the state machine is in HTTP_API_NO_CALLOUT
+    // state. This is because we are depending on the
+    // callout to complete for the state machine to
+    // get killed.
+    if (callout_state == HTTP_API_NO_CALLOUT && pending_action) {
+      pending_action->cancel();
+      pending_action = NULL;
+    }
+
+    cache_sm.end_both();
+    if (second_cache_sm)
+      second_cache_sm->end_both();
+    transform_cache_sm.end_both();
+    vc_table.cleanup_all();
+    tunnel.deallocate_buffers();
+
+    // It possible that a plugin added transform hook
+    //   but the hook never executed due to a client abort
+    //   In that case, we need to manually close all the
+    //   transforms to prevent memory leaks (INKqa06147)
+    if (hooks_set) {
+      transform_cleanup(TS_HTTP_RESPONSE_TRANSFORM_HOOK, &transform_info);
+      transform_cleanup(TS_HTTP_REQUEST_TRANSFORM_HOOK, &post_transform_info);
+      plugin_agents_cleanup();
+    }
+    // It's also possible that the plugin_tunnel vc was never
+    //   executed due to not contacting the server
+    if (plugin_tunnel) {
+      plugin_tunnel->kill_no_connect();
+      plugin_tunnel = NULL;
+    }
+
+    ua_session = NULL;
+    server_session = NULL;
+
+    // So we don't try to nuke the state machine
+    //  if the plugin receives event we must reset
+    //  the terminate_flag
+    terminate_sm = false;
+    t_state.api_next_action = HttpTransact::SM_ACTION_API_SM_SHUTDOWN;
+    do_api_callout();
+  }
+  // The reentrancy_count is still valid up to this point since
+  //   the api shutdown hook is asynchronous and double frees can
+  //   happen if the reentrancy count is not still valid until
+  //   after all asynch callouts have completed
+  //
+  // Once we get to this point, we could be waiting for async
+  //   completion in which case we need to decrement the reentrancy
+  //   count since the entry points can't do it for us since they
+  //   don't know if the state machine has been destroyed.  In the
+  //   case we really are done with asynch callouts, decrement the
+  //   reentrancy count since it seems tacky to destruct a state
+  //   machine with non-zero count
+  reentrancy_count--;
+  ink_release_assert(reentrancy_count == 0);
+
+  // If the api shutdown & list removeal was synchronous
+  //   then the value of kill_this_async_done has changed so
+  //   we must check it again
+  if (kill_this_async_done == true) {
+    // In the async state, the plugin could have been
+    // called resulting in the creation of a plugin_tunnel.
+    // So it needs to be deleted now.
+    if (plugin_tunnel) {
+      plugin_tunnel->kill_no_connect();
+      plugin_tunnel = NULL;
+    }
+
+    if (t_state.pCongestionEntry != NULL) {
+      if (t_state.congestion_congested_or_failed != 1) {
+        t_state.pCongestionEntry->go_alive();
+      }
+    }
+
+    ink_assert(pending_action == NULL);
+    ink_release_assert(vc_table.is_table_clear() == true);
+    ink_release_assert(tunnel.is_tunnel_active() == false);
+
+    if (t_state.http_config_param->enable_http_stats)
+      update_stats();
+
+    HTTP_SM_SET_DEFAULT_HANDLER(NULL);
+
+    if (redirect_url != NULL) {
+      ats_free((void*)redirect_url);
+      redirect_url = NULL;
+      redirect_url_len = 0;
+    }
+
+#ifdef USE_HTTP_DEBUG_LISTS
+    ink_mutex_acquire(&debug_sm_list_mutex);
+    debug_sm_list.remove(this, this->debug_link);
+    ink_mutex_release(&debug_sm_list_mutex);
+#endif
+
+    DebugSM("http", "[%" PRId64 "] deallocating sm", sm_id);
+//    authAdapter.destroyState();
+    destroy();
+  }
+}
+
+void
+HttpSM::update_stats()
+{
+  milestones.sm_finish = ink_get_hrtime();
+
+  if (t_state.cop_test_page && !t_state.http_config_param->record_cop_page) {
+    DebugSM("http_seq", "Skipping cop heartbeat logging & stats due to config");
+    return;
+  }
+
+  //////////////
+  // Log Data //
+  //////////////
+  DebugSM("http_seq", "[HttpSM::update_stats] Logging transaction");
+  if (Log::transaction_logging_enabled() && t_state.api_info.logging_enabled) {
+    LogAccessHttp accessor(this);
+
+    int ret = Log::access(&accessor);
+
+    if (ret & Log::FULL) {
+      DebugSM("http", "[update_stats] Logging system indicates FULL.");
+    }
+    if (ret & Log::FAIL) {
+      Log::error("failed to log transaction for at least one log object");
+    }
+  }
+
+  if (is_action_tag_set("bad_length_state_dump")) {
+    if (t_state.hdr_info.client_response.valid() && t_state.hdr_info.client_response.status_get() == HTTP_STATUS_OK) {
+      int64_t p_resp_cl = t_state.hdr_info.client_response.get_content_length();
+      int64_t resp_size = client_response_body_bytes;
+      if (!((p_resp_cl == -1 || p_resp_cl == resp_size || resp_size == 0))) {
+        Error("[%" PRId64 "] Truncated content detected", sm_id);
+        dump_state_on_assert();
+      }
+    } else if (client_request_hdr_bytes == 0) {
+      Error("[%" PRId64 "] Zero length request header received", sm_id);
+      dump_state_on_assert();
+    }
+  }
+
+  if (is_action_tag_set("assert_jtest_length")) {
+    if (t_state.hdr_info.client_response.valid() && t_state.hdr_info.client_response.status_get() == HTTP_STATUS_OK) {
+      int64_t p_resp_cl = t_state.hdr_info.client_response.get_content_length();
+      int64_t resp_size = client_response_body_bytes;
+      ink_release_assert(p_resp_cl == -1 || p_resp_cl == resp_size || resp_size == 0);
+    }
+  }
+
+  ink_hrtime total_time = milestones.sm_finish - milestones.sm_start;
+
+  // ua_close will not be assigned properly in some exceptional situation.
+  // TODO: Assign ua_close with suitable value when HttpTunnel terminates abnormally.
+  if (milestones.ua_close == 0 && milestones.ua_read_header_done > 0)
+    milestones.ua_close = ink_get_hrtime();
+
+  // request_process_time  = The time after the header is parsed to the completion of the transaction
+  ink_hrtime request_process_time = milestones.ua_close - milestones.ua_read_header_done;
+
+  HttpTransact::client_result_stat(&t_state, total_time, request_process_time);
+
+  ink_hrtime ua_write_time;
+  if (milestones.ua_begin_write != 0 && milestones.ua_close != 0) {
+    ua_write_time = milestones.ua_close - milestones.ua_begin_write;
+  } else {
+    ua_write_time = -1;
+  }
+
+  ink_hrtime os_read_time;
+  if (milestones.server_read_header_done != 0 && milestones.server_close != 0) {
+    os_read_time = milestones.server_close - milestones.server_read_header_done;
+  } else {
+    os_read_time = -1;
+  }
+
+  // TS-2032: This code is never used, but leaving it here in case we want to add these
+  // to the metrics code.
+#if 0
+  ink_hrtime cache_lookup_time;
+  if (milestones.cache_open_read_end != 0 && milestones.cache_open_read_begin != 0) {
+    cache_lookup_time = milestones.cache_open_read_end - milestones.cache_open_read_begin;
+  } else {
+    cache_lookup_time = -1;
+  }
+#endif
+
+  HttpTransact::update_size_and_time_stats(&t_state, total_time, ua_write_time, os_read_time, client_request_hdr_bytes,
+                                           client_request_body_bytes, client_response_hdr_bytes, client_response_body_bytes,
+                                           server_request_hdr_bytes, server_request_body_bytes, server_response_hdr_bytes,
+                                           server_response_body_bytes, pushed_response_hdr_bytes, pushed_response_body_bytes);
+/*
+    if (is_action_tag_set("http_handler_times")) {
+	print_all_http_handler_times();
+    }
+    */
+
+
+  // print slow requests if the threshold is set (> 0) and if we are over the time threshold
+  if (t_state.http_config_param->slow_log_threshold != 0 &&
+      ink_hrtime_from_msec(t_state.http_config_param->slow_log_threshold) < total_time) {
+    URL* url = t_state.hdr_info.client_request.url_get();
+    char url_string[256] = "";
+    int offset = 0;
+    int skip = 0;
+
+    t_state.hdr_info.client_request.url_print(url_string, sizeof url_string, &offset, &skip);
+
+    // unique id
+    char unique_id_string[128] = "";
+    // [amc] why do we check the URL to get a MIME field?
+    if (0 != url && url->valid()) {
+      int length = 0;
+      const char *field = t_state.hdr_info.client_request.value_get(MIME_FIELD_X_ID, MIME_LEN_X_ID, &length);
+      if (field != NULL) {
+        ink_strlcpy(unique_id_string, field, sizeof(unique_id_string));
+      }
+    }
+
+    // set the fd for the request
+    int fd = 0;
+    NetVConnection *vc = NULL;
+    if (ua_session != NULL) {
+      vc = ua_session->get_netvc();
+      if (vc != NULL) {
+        fd = vc->get_socket();
+      } else {
+        fd = -1;
+      }
+    }
+    // get the status code, lame that we have to check to see if it is valid or we will assert in the method call
+    int status = 0;
+    if (t_state.hdr_info.client_response.valid()) {
+      status = t_state.hdr_info.client_response.status_get();
+    }
+    char client_ip[INET6_ADDRSTRLEN];
+    ats_ip_ntop(&t_state.client_info.addr, client_ip, sizeof(client_ip));
+    Error("[%" PRId64 "] Slow Request: "
+          "client_ip: %s:%u "
+          "url: %s "
+          "status: %d "
+          "unique id: %s "
+          "bytes: %" PRId64 " "
+          "fd: %d "
+          "client state: %d "
+          "server state: %d "
+          "ua_begin: %.3f "
+          "ua_read_header_done: %.3f "
+          "cache_open_read_begin: %.3f "
+          "cache_open_read_end: %.3f "
+          "dns_lookup_begin: %.3f "
+          "dns_lookup_end: %.3f "
+          "server_connect: %.3f "
+          "server_first_read: %.3f "
+          "server_read_header_done: %.3f "
+          "server_close: %.3f "
+          "ua_close: %.3f "
+          "sm_finish: %.3f",
+          sm_id,
+          client_ip,
+          ats_ip_port_host_order(&t_state.client_info.addr),
+          url_string,
+          status,
+          unique_id_string,
+          client_response_body_bytes,
+          fd,
+          t_state.client_info.state,
+          t_state.server_info.state,
+          milestone_difference(milestones.sm_start, milestones.ua_begin),
+          milestone_difference(milestones.sm_start, milestones.ua_read_header_done),
+          milestone_difference(milestones.sm_start, milestones.cache_open_read_begin),
+          milestone_difference(milestones.sm_start, milestones.cache_open_read_end),
+          milestone_difference(milestones.sm_start, milestones.dns_lookup_begin),
+          milestone_difference(milestones.sm_start, milestones.dns_lookup_end),
+          milestone_difference(milestones.sm_start, milestones.server_connect),
+          milestone_difference(milestones.sm_start, milestones.server_first_read),
+          milestone_difference(milestones.sm_start, milestones.server_read_header_done),
+          milestone_difference(milestones.sm_start, milestones.server_close),
+          milestone_difference(milestones.sm_start, milestones.ua_close),
+          milestone_difference(milestones.sm_start, milestones.sm_finish)
+      );
+
+  }
+}
+
+
+//
+// void HttpSM::dump_state_on_assert
+//    Debugging routine to dump the state machine's history
+//     and other state on an assertion failure
+//    We use Diags::Status instead of stderr since
+//     Diags works both on UNIX & NT
+//
+void
+HttpSM::dump_state_on_assert()
+{
+  Error("[%" PRId64 "] ------- begin http state dump -------", sm_id);
+
+  int hist_size = this->history_pos;
+  if (this->history_pos > HISTORY_SIZE) {
+    hist_size = HISTORY_SIZE;
+    Error("   History Wrap around. history_pos: %d", this->history_pos);
+  }
+  // Loop through the history and dump it
+  for (int i = 0; i < hist_size; i++) {
+    int r = history[i].reentrancy;
+    int e = history[i].event;
+    Error("%d   %d   %s", e, r, history[i].fileline);
+  }
+
+  // Dump the via string
+  Error("Via String: [%s]\n", t_state.via_string);
+
+  // Dump header info
+  dump_state_hdr(&t_state.hdr_info.client_request, "Client Request");
+  dump_state_hdr(&t_state.hdr_info.server_request, "Server Request");
+  dump_state_hdr(&t_state.hdr_info.server_response, "Server Response");
+  dump_state_hdr(&t_state.hdr_info.transform_response, "Transform Response");
+  dump_state_hdr(&t_state.hdr_info.client_response, "Client Response");
+
+  Error("[%" PRId64 "] ------- end http state dump ---------", sm_id);
+}
+
+void
+HttpSM::dump_state_hdr(HTTPHdr *h, const char *s)
+{
+  // Dump the client request if available
+  if (h->valid()) {
+    int l = h->length_get();
+    char *hdr_buf = (char *)ats_malloc(l + 1);
+    int index = 0;
+    int offset = 0;
+
+    h->print(hdr_buf, l, &index, &offset);
+
+    hdr_buf[l] = '\0';
+    Error("  ----  %s [%" PRId64 "] ----\n%s\n", s, sm_id, hdr_buf);
+    ats_free(hdr_buf);
+  }
+}
+
+
+
+/*****************************************************************************
+ *****************************************************************************
+ ****                                                                     ****
+ ****                       HttpTransact Interface                        ****
+ ****                                                                     ****
+ *****************************************************************************
+ *****************************************************************************/
+//////////////////////////////////////////////////////////////////////////
+//
+//      HttpSM::call_transact_and_set_next_state(f)
+//
+//      This routine takes an HttpTransact function <f>, calls the function
+//      to perform some actions on the current HttpTransact::State, and
+//      then uses the HttpTransact return action code to set the next
+//      handler (state) for the state machine.  HttpTransact could have
+//      returned the handler directly, but returns action codes in hopes of
+//      making a cleaner separation between the state machine and the
+//      HttpTransact logic.
+//
+//////////////////////////////////////////////////////////////////////////
+
+// Where is the goatherd?
+
+void
+HttpSM::call_transact_and_set_next_state(TransactEntryFunc_t f)
+{
+  last_action = t_state.next_action;    // remember where we were
+
+  // The callee can either specify a method to call in to Transact,
+  //   or call with NULL which indicates that Transact should use
+  //   its stored entry point.
+  if (f == NULL) {
+    ink_release_assert(t_state.transact_return_point != NULL);
+    t_state.transact_return_point(&t_state);
+  } else {
+    f(&t_state);
+  }
+
+  DebugSM("http", "[%" PRId64 "] State Transition: %s -> %s",
+        sm_id, HttpDebugNames::get_action_name(last_action), HttpDebugNames::get_action_name(t_state.next_action));
+
+  set_next_state();
+
+  return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  HttpSM::set_next_state()
+//
+//  call_transact_and_set_next_state() was broken into two parts, one
+//  which calls the HttpTransact method and the second which sets the
+//  next state. In a case which set_next_state() was not completed,
+//  the state function calls set_next_state() to retry setting the
+//  state.
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpSM::set_next_state()
+{
+  ///////////////////////////////////////////////////////////////////////
+  // Use the returned "next action" code to set the next state handler //
+  ///////////////////////////////////////////////////////////////////////
+  switch (t_state.next_action) {
+  case HttpTransact::SM_ACTION_API_READ_REQUEST_HDR:
+  case HttpTransact::SM_ACTION_API_PRE_REMAP:
+  case HttpTransact::SM_ACTION_API_POST_REMAP:
+  case HttpTransact::SM_ACTION_API_OS_DNS:
+  case HttpTransact::SM_ACTION_API_SEND_REQUEST_HDR:
+  case HttpTransact::SM_ACTION_API_READ_CACHE_HDR:
+  case HttpTransact::SM_ACTION_API_READ_RESPONSE_HDR:
+  case HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR:
+  case HttpTransact::SM_ACTION_API_CACHE_LOOKUP_COMPLETE:
+    {
+      t_state.api_next_action = t_state.next_action;
+      do_api_callout();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_POST_REMAP_SKIP:
+    {
+      call_transact_and_set_next_state(NULL);
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_REMAP_REQUEST:
+    {
+      if (!remapProcessor.using_separate_thread()) {
+        do_remap_request(true); /* run inline */
+        DebugSM("url_rewrite", "completed inline remapping request for [%" PRId64 "]", sm_id);
+        t_state.url_remap_success = remapProcessor.finish_remap(&t_state);
+        call_transact_and_set_next_state(NULL);
+      } else {
+        HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_remap_request);
+        do_remap_request(false);        /* dont run inline (iow on another thread) */
+      }
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_DNS_LOOKUP:
+    {
+      sockaddr const* addr;
+
+      if (t_state.api_server_addr_set) {
+        /* If the API has set the server address before the OS DNS lookup
+         * then we can skip the lookup
+         */
+        ip_text_buffer ipb;
+        DebugSM("dns", "[HttpTransact::HandleRequest] Skipping DNS lookup for API supplied target %s.\n", ats_ip_ntop(&t_state.server_info.addr, ipb, sizeof(ipb)));
+        // this seems wasteful as we will just copy it right back
+        ats_ip_copy(t_state.host_db_info.ip(), &t_state.server_info.addr);
+        t_state.dns_info.lookup_success = true;
+        call_transact_and_set_next_state(NULL);
+        break;
+      } else if (url_remap_mode == HttpTransact::URL_REMAP_FOR_OS && t_state.first_dns_lookup) {
+        DebugSM("cdn", "Skipping DNS Lookup");
+        // skip the DNS lookup
+        t_state.first_dns_lookup = false;
+        call_transact_and_set_next_state(HttpTransact::HandleFiltering);
+        break;
+      } else  if (t_state.http_config_param->use_client_target_addr
+        && !t_state.url_remap_success
+        && t_state.parent_result.r != PARENT_SPECIFIED
+        && t_state.client_info.is_transparent
+        && t_state.dns_info.os_addr_style == HttpTransact::DNSLookupInfo::OS_ADDR_TRY_DEFAULT
+        && ats_is_ip(addr = t_state.state_machine->ua_session->get_netvc()->get_local_addr())
+      ) {
+        /* If the connection is client side transparent and the URL
+         * was not remapped/directed to parent proxy, we can use the
+         * client destination IP address instead of doing a DNS
+         * lookup. This is controlled by the 'use_client_target_addr'
+         * configuration parameter.
+         */
+        if (is_debug_tag_set("dns")) {
+          ip_text_buffer ipb;
+          DebugSM("dns", "[HttpTransact::HandleRequest] Skipping DNS lookup for client supplied target %s.\n", ats_ip_ntop(addr, ipb, sizeof(ipb)));
+        }
+        ats_ip_copy(t_state.host_db_info.ip(), addr);
+        /* Since we won't know the server HTTP version (no hostdb lookup), we assume it matches the
+         * client request version. Seems to be the most correct thing to do in the transparent use-case.
+         */
+        if (t_state.hdr_info.client_request.version_get() == HTTPVersion(0, 9))
+          t_state.host_db_info.app.http_data.http_version =  HostDBApplicationInfo::HTTP_VERSION_09;
+        else if (t_state.hdr_info.client_request.version_get() == HTTPVersion(1, 0))
+          t_state.host_db_info.app.http_data.http_version =  HostDBApplicationInfo::HTTP_VERSION_10;
+        else
+          t_state.host_db_info.app.http_data.http_version =  HostDBApplicationInfo::HTTP_VERSION_11;
+
+        t_state.dns_info.lookup_success = true;
+        // cache this result so we don't have to unreliably duplicate the
+        // logic later if the connect fails.
+        t_state.dns_info.os_addr_style = HttpTransact::DNSLookupInfo::OS_ADDR_TRY_CLIENT;
+        call_transact_and_set_next_state(NULL);
+        break;
+      } else if (t_state.parent_result.r == PARENT_UNDEFINED && t_state.dns_info.lookup_success) {
+        // Already set, and we don't have a parent proxy to lookup
+        ink_assert(ats_is_ip(t_state.host_db_info.ip()));
+        DebugSM("dns", "[HttpTransact::HandleRequest] Skipping DNS lookup, provided by plugin");
+        call_transact_and_set_next_state(NULL);
+        break;
+      } else if (t_state.dns_info.looking_up == HttpTransact::ORIGIN_SERVER &&
+                 t_state.http_config_param->no_dns_forward_to_parent){
+
+        if (t_state.cop_test_page)
+          ats_ip_copy(t_state.host_db_info.ip(), t_state.state_machine->ua_session->get_netvc()->get_local_addr());
+
+        t_state.dns_info.lookup_success = true;
+        call_transact_and_set_next_state(NULL);
+        break;
+      }
+
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_hostdb_lookup);
+
+      ink_assert(t_state.dns_info.looking_up != HttpTransact::UNDEFINED_LOOKUP);
+      do_hostdb_lookup();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_DNS_REVERSE_LOOKUP:
+    {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_hostdb_reverse_lookup);
+      do_hostdb_reverse_lookup();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_CACHE_LOOKUP:
+    {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_cache_open_read);
+      do_cache_lookup_and_read();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_ORIGIN_SERVER_OPEN:
+    {
+      if (congestionControlEnabled && (t_state.congest_saved_next_action == HttpTransact::SM_ACTION_UNDEFINED)) {
+        t_state.congest_saved_next_action = HttpTransact::SM_ACTION_ORIGIN_SERVER_OPEN;
+        HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_congestion_control_lookup);
+        if (!do_congestion_control_lookup())
+          break;
+      }
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_http_server_open);
+
+      // We need to close the previous attempt
+      if (server_entry) {
+        ink_assert(server_entry->vc_type == HTTP_SERVER_VC);
+        vc_table.cleanup_entry(server_entry);
+        server_entry = NULL;
+        server_session = NULL;
+      } else {
+        // Now that we have gotten the user agent request, we can cancel
+        // the inactivity timeout associated with it.  Note, however, that
+        // we must not cancel the inactivity timeout if the message
+        // contains a body (as indicated by the non-zero request_content_length
+        // field).  This indicates that a POST operation is taking place and
+        // that the client is still sending data to the origin server.  The
+        // origin server cannot reply until the entire request is received.  In
+        // light of this dependency, TS must ensure that the client finishes
+        // sending its request and for this reason, the inactivity timeout
+        // cannot be cancelled.
+        if (ua_session && !t_state.hdr_info.request_content_length) {
+          ua_session->get_netvc()->cancel_inactivity_timeout();
+        }
+      }
+
+      do_http_server_open();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_SERVER_PARSE_NEXT_HDR:
+    {
+      setup_server_read_response_header();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_100_RESPONSE:
+    {
+      setup_100_continue_transfer();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_SERVER_READ:
+    {
+      t_state.source = HttpTransact::SOURCE_HTTP_ORIGIN_SERVER;
+
+      if (transform_info.vc) {
+        ink_assert(t_state.hdr_info.client_response.valid() == 0);
+        ink_assert((t_state.hdr_info.transform_response.valid()? true : false) == true);
+        HttpTunnelProducer *p = setup_server_transfer_to_transform();
+        perform_cache_write_action();
+        tunnel.tunnel_run(p);
+      } else {
+        ink_assert((t_state.hdr_info.client_response.valid()? true : false) == true);
+        t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+
+        // check to see if we are going to handle the redirection from server response and if there is a plugin hook set
+        if (hooks_set && is_redirect_required() == false) {
+          do_api_callout_internal();
+        } else {
+          do_redirect();
+          handle_api_return();
+        }
+
+      }
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_SERVE_FROM_CACHE:
+    {
+      ink_assert(t_state.cache_info.action == HttpTransact::CACHE_DO_SERVE ||
+                 t_state.cache_info.action == HttpTransact::CACHE_DO_SERVE_AND_DELETE ||
+                 t_state.cache_info.action == HttpTransact::CACHE_DO_SERVE_AND_UPDATE);
+      release_server_session(true);
+      t_state.source = HttpTransact::SOURCE_CACHE;
+
+      if (transform_info.vc) {
+        ink_assert(t_state.hdr_info.client_response.valid() == 0);
+        ink_assert((t_state.hdr_info.transform_response.valid()? true : false) == true);
+        t_state.hdr_info.cache_response.create(HTTP_TYPE_RESPONSE);
+        t_state.hdr_info.cache_response.copy(&t_state.hdr_info.transform_response);
+
+        HttpTunnelProducer *p = setup_cache_transfer_to_transform();
+        perform_cache_write_action();
+        tunnel.tunnel_run(p);
+      } else {
+        ink_assert((t_state.hdr_info.client_response.valid()? true : false) == true);
+        t_state.hdr_info.cache_response.create(HTTP_TYPE_RESPONSE);
+        t_state.hdr_info.cache_response.copy(&t_state.hdr_info.client_response);
+
+        perform_cache_write_action();
+        t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+
+        // check to see if we are going to handle the redirection from server response and if there is a plugin hook set
+        if (hooks_set && is_redirect_required() == false) {
+          do_api_callout_internal();
+        } else {
+          do_redirect();
+          handle_api_return();
+        }
+      }
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_CACHE_ISSUE_WRITE:
+    {
+      ink_assert(cache_sm.cache_write_vc == NULL);
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_cache_open_write);
+
+      do_cache_prepare_write();
+      break;
+
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_WRITE:
+    {
+      t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+      do_api_callout();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_NOOP:
+    {
+      if (server_entry == NULL || server_entry->in_tunnel == false) {
+        release_server_session();
+      }
+      // If we're in state SEND_API_RESPONSE_HDR, it means functions
+      // registered to hook SEND_RESPONSE_HDR have already been called. So we do not
+      // need to call do_api_callout. Otherwise TS loops infinitely in this state !
+      if (t_state.api_next_action == HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR) {
+        handle_api_return();
+      } else {
+        t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+        do_api_callout();
+      }
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_DELETE:
+    {
+      // Nuke all the alternates since this is mostly likely
+      //   the result of a delete method
+      cache_sm.end_both();
+      do_cache_delete_all_alts(NULL);
+
+      release_server_session();
+      t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+      do_api_callout();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS:
+    {
+      issue_cache_update();
+      cache_sm.close_read();
+
+      release_server_session();
+      t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+      do_api_callout();
+      break;
+
+    }
+
+  case HttpTransact::SM_ACTION_SEND_ERROR_CACHE_NOOP:
+    {
+      setup_error_transfer();
+      break;
+    }
+
+
+  case HttpTransact::SM_ACTION_INTERNAL_REQUEST:
+    {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_handle_stat_page);
+      Action *action_handle = statPagesManager.handle_http(this, &t_state.hdr_info.client_request);
+
+      if (action_handle != ACTION_RESULT_DONE) {
+        pending_action = action_handle;
+        historical_action = pending_action;
+      }
+
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_ORIGIN_SERVER_RR_MARK_DOWN:
+    {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_mark_os_down);
+
+      ink_assert(t_state.dns_info.looking_up == HttpTransact::ORIGIN_SERVER);
+
+      // TODO: This might not be optimal (or perhaps even correct), but it will 
+      // effectively mark the host as down. What's odd is that state_mark_os_down
+      // above isn't triggering.
+      HttpSM::do_hostdb_update_if_necessary();
+
+      do_hostdb_lookup();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_SSL_TUNNEL:
+    {
+      setup_blind_tunnel(true);
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_ORIGIN_SERVER_RAW_OPEN:{
+      if (congestionControlEnabled && (t_state.congest_saved_next_action == HttpTransact::SM_ACTION_UNDEFINED)) {
+        t_state.congest_saved_next_action = HttpTransact::SM_ACTION_ORIGIN_SERVER_RAW_OPEN;
+        HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_congestion_control_lookup);
+        if (!do_congestion_control_lookup())
+          break;
+      }
+
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_raw_http_server_open);
+
+      ink_assert(server_entry == NULL);
+      do_http_server_open(true);
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_ICP_QUERY:
+    {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_icp_lookup);
+      do_icp_lookup();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_CACHE_ISSUE_WRITE_TRANSFORM:
+    {
+      ink_assert(t_state.cache_info.transform_action == HttpTransact::CACHE_PREPARE_TO_WRITE);
+
+      if (transform_cache_sm.cache_write_vc) {
+        // We've already got the write_vc that
+        //  didn't use for the untransformed copy
+        ink_assert(cache_sm.cache_write_vc == NULL);
+        ink_assert(t_state.api_info.cache_untransformed == false);
+        t_state.cache_info.write_lock_state = HttpTransact::CACHE_WL_SUCCESS;
+        call_transact_and_set_next_state(NULL);
+      } else {
+        HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::state_cache_open_write);
+
+        do_cache_prepare_write_transform();
+      }
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_TRANSFORM_READ:
+    {
+      t_state.api_next_action = HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR;
+      do_api_callout();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_READ_PUSH_HDR:
+    {
+      setup_push_read_response_header();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_STORE_PUSH_BODY:
+    {
+      setup_push_transfer_to_cache();
+      tunnel.tunnel_run();
+      break;
+    }
+
+  case HttpTransact::SM_ACTION_CACHE_PREPARE_UPDATE:
+    {
+      ink_assert(t_state.api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE);
+      do_cache_prepare_update();
+      break;
+    }
+  case HttpTransact::SM_ACTION_CACHE_ISSUE_UPDATE:
+    {
+      if (t_state.api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_ERROR) {
+        t_state.cache_info.object_read = NULL;
+        cache_sm.close_read();
+      }
+      issue_cache_update();
+      call_transact_and_set_next_state(NULL);
+      break;
+    }
+
+#ifdef PROXY_DRAIN
+  case HttpTransact::SM_ACTION_DRAIN_REQUEST_BODY:
+    {
+      do_drain_request_body();
+      break;
+    }
+#endif /* PROXY_DRAIN */
+
+  case HttpTransact::SM_ACTION_CONTINUE:
+    {
+      ink_release_assert(!"Not implemented");
+    }
+
+  default:
+    {
+      ink_release_assert("!Unknown next action");
+    }
+  }
+}
+
+
+void
+clear_http_handler_times()
+{
+}
+
+
+bool
+HttpSM::do_congestion_control_lookup()
+{
+  ink_assert(pending_action == NULL);
+
+  Action *congestion_control_action_handle = get_congest_entry(this, &t_state.request_data, &t_state.pCongestionEntry);
+  if (congestion_control_action_handle != ACTION_RESULT_DONE) {
+    pending_action = congestion_control_action_handle;
+    historical_action = pending_action;
+    return false;
+  }
+  return true;
+}
+
+int
+HttpSM::state_congestion_control_lookup(int event, void *data)
+{
+  STATE_ENTER(&HttpSM::state_congestion_control_lookup, event);
+  if (event == CONGESTION_EVENT_CONTROL_LOOKUP_DONE) {
+    pending_action = NULL;
+    t_state.next_action = t_state.congest_saved_next_action;
+    t_state.transact_return_point = NULL;
+    set_next_state();
+  } else {
+    if (pending_action != NULL) {
+      pending_action->cancel();
+      pending_action = NULL;
+    }
+    if (t_state.congest_saved_next_action == HttpTransact::SM_ACTION_ORIGIN_SERVER_OPEN) {
+      return state_http_server_open(event, data);
+    } else if (t_state.congest_saved_next_action == HttpTransact::SM_ACTION_ORIGIN_SERVER_RAW_OPEN) {
+      return state_raw_http_server_open(event, data);
+    }
+  }
+  return 0;
+}
+
+
+//YTS Team, yamsat Plugin
+
+void
+HttpSM::do_redirect()
+{
+  DebugSM("http_redirect", "[HttpSM::do_redirect]");
+  if (!enable_redirection || redirection_tries >= HttpConfig::m_master.number_of_redirections) {
+    tunnel.deallocate_redirect_postdata_buffers();
+    return;
+  }
+
+  // if redirect_url is set by an user's plugin, yts will redirect to this url anyway.
+    if (is_redirect_required()) {
+    if (redirect_url != NULL || t_state.hdr_info.client_response.field_find(MIME_FIELD_LOCATION, MIME_LEN_LOCATION)) {
+      if (Log::transaction_logging_enabled() && t_state.api_info.logging_enabled) {
+        LogAccessHttp accessor(this);
+        if (redirect_url == NULL) {
+          if (t_state.squid_codes.log_code == SQUID_LOG_TCP_HIT)
+            t_state.squid_codes.log_code = SQUID_LOG_TCP_HIT_REDIRECT;
+          else
+            t_state.squid_codes.log_code = SQUID_LOG_TCP_MISS_REDIRECT;
+        } else {
+          if (t_state.squid_codes.log_code == SQUID_LOG_TCP_HIT)
+            t_state.squid_codes.log_code = SQUID_LOG_TCP_HIT_X_REDIRECT;
+          else
+            t_state.squid_codes.log_code = SQUID_LOG_TCP_MISS_X_REDIRECT;
+        }
+
+        int ret = Log::access(&accessor);
+
+        if (ret & Log::FULL) {
+          DebugSM("http", "[update_stats] Logging system indicates FULL.");
+        }
+        if (ret & Log::FAIL) {
+          Log::error("failed to log transaction for at least one log object");
+        }
+      }
+
+      if (redirect_url != NULL) {
+        redirect_request(redirect_url, redirect_url_len);
+        ats_free((void*)redirect_url);
+        redirect_url = NULL;
+        redirect_url_len = 0;
+        HTTP_INCREMENT_DYN_STAT(http_total_x_redirect_stat);
+      }
+      else {
+        // get the location header and setup the redirect
+        int redir_len;
+        char *redir_url =
+        (char *) t_state.hdr_info.client_response.value_get(MIME_FIELD_LOCATION, MIME_LEN_LOCATION, &redir_len);
+        redirect_request(redir_url, redir_len);
+      }
+
+    } else {
+      enable_redirection = false;
+    }
+  } else {
+    enable_redirection = false;
+  }
+
+}
+
+void
+HttpSM::redirect_request(const char *redirect_url, const int redirect_len)
+{
+  DebugSM("http_redirect", "[HttpSM::redirect_request]");
+  // get a reference to the client request header and client url and check to see if the url is valid
+  HTTPHdr & clientRequestHeader = t_state.hdr_info.client_request;
+  URL & clientUrl = *clientRequestHeader.url_get();
+  if (!clientUrl.valid()) {
+    return;
+  }
+
+  t_state.redirect_info.redirect_in_process = true;
+
+  // set the passed in location url and parse it
+  URL & redirectUrl = t_state.redirect_info.redirect_url;
+  if (!redirectUrl.valid()) {
+    redirectUrl.create(NULL);
+  }
+
+  // reset the path from previous redirects (if any)
+  t_state.redirect_info.redirect_url.path_set(NULL, 0);
+
+  // redirectUrl.user_set(redirect_url, redirect_len);
+  redirectUrl.parse(redirect_url, redirect_len);
+
+  // copy the client url to the original url
+  URL & origUrl = t_state.redirect_info.original_url;
+  if (!origUrl.valid()) {
+    origUrl.create(NULL);
+    origUrl.copy(&clientUrl);
+  }
+  // copy the redirect url to the client url
+  clientUrl.copy(&redirectUrl);
+
+  //(bug 2540703) Clear the previous response if we will attempt the redirect
+  if (t_state.hdr_info.client_response.valid()) {
+    // XXX - doing a destroy() for now, we can do a fileds_clear() if we have performance issue
+    t_state.hdr_info.client_response.destroy();
+  }
+
+
+  bool valid_origHost = true;
+  int origHost_len, origMethod_len;
+  char* tmpOrigHost = (char *) t_state.hdr_info.server_request.value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &origHost_len);
+  char origHost[origHost_len + 1];
+
+  if (tmpOrigHost)
+    memcpy(origHost, tmpOrigHost, origHost_len);
+  else
+    valid_origHost = false;
+
+  origHost[origHost_len] = '\0';
+  int origPort = t_state.hdr_info.server_request.port_get();
+
+  char *tmpOrigMethod = (char *) t_state.hdr_info.server_request.method_get(&origMethod_len);
+  char origMethod[origMethod_len + 1];
+
+  if (tmpOrigMethod)
+    memcpy(origMethod, tmpOrigMethod, origMethod_len);
+  else
+    valid_origHost = false;
+
+  int scheme = t_state.next_hop_scheme;
+  int scheme_len = hdrtoken_index_to_length(scheme);
+  const char* next_hop_scheme = hdrtoken_index_to_wks(scheme);
+  char scheme_str[scheme_len+1];
+
+  if (next_hop_scheme)
+    memcpy(scheme_str, next_hop_scheme, scheme_len);
+  else
+    valid_origHost = false;
+
+  t_state.hdr_info.server_request.destroy();
+  // we want to close the server session
+  t_state.api_release_server_session = true;
+  t_state.parent_result.r = PARENT_UNDEFINED;
+  t_state.request_sent_time = 0;
+  t_state.response_received_time = 0;
+  t_state.cache_info.write_lock_state = HttpTransact::CACHE_WL_INIT;
+  t_state.next_action = HttpTransact::SM_ACTION_REDIRECT_READ;
+  // we have a new OS and need to have DNS lookup the new OS
+  t_state.dns_info.lookup_success = false;
+  t_state.force_dns = false;
+
+  bool noPortInHost = HttpConfig::m_master.redirection_host_no_port;
+
+  // check to see if the client request passed a host header, if so copy the host and port from the redirect url and
+  // make a new host header
+  if (t_state.hdr_info.client_request.presence(MIME_PRESENCE_HOST)) {
+    int host_len;
+    const char *host = clientUrl.host_get(&host_len);
+
+    if (host != NULL) {
+      int port = clientUrl.port_get();
+      char buf[host_len + 7];
+
+      int redirectSchemeLen;
+      const char* redirectScheme = clientUrl.scheme_get(&redirectSchemeLen);
+      if (redirectScheme == NULL) {
+        clientUrl.scheme_set(scheme_str, scheme_len);
+        DebugSM("http_redirect", "[HttpSM::redirect_request] hsot without scheme %s", buf);
+      }
+
+      if (noPortInHost) {
+        int redirectSchemeIdx = clientUrl.scheme_get_wksidx();
+
+        bool defaultPort = (((redirectSchemeIdx == URL_WKSIDX_HTTP) && (port == 80)) ||
+            ((redirectSchemeIdx == URL_WKSIDX_HTTPS) && (port == 443)));
+
+        if (!defaultPort) noPortInHost = false;
+      }
+
+      ink_strlcpy(buf, host, host_len + 1);
+
+      if (!noPortInHost) {
+        char port_buf[6]; // handle upto 5 digit port
+        buf[host_len++] = ':';
+
+        host_len += ink_small_itoa(port, port_buf, sizeof(port_buf));
+        ink_strlcat(buf, port_buf, sizeof(buf));
+      }
+
+      t_state.hdr_info.client_request.m_target_cached = false;
+      t_state.hdr_info.client_request.value_set(MIME_FIELD_HOST, MIME_LEN_HOST, buf, host_len);
+    } else {
+      // the client request didn't have a host, so use the current origin host
+      if (valid_origHost)
+      {
+        // the client request didn't have a host, so use the current origin host
+        DebugSM("http_redirect", "[HttpSM::redirect_request] keeping client request host %s://%s", next_hop_scheme, origHost);
+        char* origHost1 = strtok(origHost, ":");
+        origHost_len = strlen(origHost1);
+        int origHostPort_len = origHost_len;
+        char buf[origHostPort_len + 7];
+        ink_strlcpy(buf, origHost1, origHost_len + 1);
+
+        if (noPortInHost) {
+          int redirectSchemeIdx = t_state.next_hop_scheme;
+
+          bool defaultPort = (((redirectSchemeIdx == URL_WKSIDX_HTTP) && (origPort == 80)) ||
+              ((redirectSchemeIdx == URL_WKSIDX_HTTPS) && (origPort == 443)));
+
+          if (!defaultPort) noPortInHost = false;
+        }
+
+        if (!noPortInHost) {
+          char port_buf[6]; // handle upto 5 digit port
+          buf[origHostPort_len++] = ':';
+          origHostPort_len += ink_small_itoa(origPort, port_buf, sizeof(port_buf));
+          ink_strlcat(buf, port_buf, sizeof(buf));
+        }
+
+        url_nuke_proxy_stuff(clientUrl.m_url_impl);
+        url_nuke_proxy_stuff(t_state.hdr_info.client_request.m_url_cached.m_url_impl);
+        t_state.hdr_info.client_request.method_set(origMethod, origMethod_len);
+        if (noPortInHost)
+          t_state.hdr_info.client_request.value_set(MIME_FIELD_HOST, MIME_LEN_HOST, buf, origHost_len);
+        else
+          t_state.hdr_info.client_request.value_set(MIME_FIELD_HOST, MIME_LEN_HOST, buf, origHostPort_len);
+        t_state.hdr_info.client_request.m_target_cached = false;
+        clientUrl.scheme_set(scheme_str, scheme_len);
+      } else {
+        // the server request didn't have a host, so remove it from the headers
+        t_state.hdr_info.client_request.field_delete(MIME_FIELD_HOST, MIME_LEN_HOST);
+      }
+    }
+
+  }
+
+  DUMP_HEADER("http_hdrs", &t_state.hdr_info.client_request, sm_id, "Framed Client Request..checking");
+}
+
+void
+HttpSM::set_http_schedule(Continuation *contp)
+{
+  HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::get_http_schedule);
+  schedule_cont = contp;
+}
+
+int
+HttpSM::get_http_schedule(int event, void * /* data ATS_UNUSED */)
+{
+  bool plugin_lock;
+  Ptr <ProxyMutex> plugin_mutex;
+  if (schedule_cont->mutex) {
+    plugin_mutex = schedule_cont->mutex;
+    plugin_lock = MUTEX_TAKE_TRY_LOCK(schedule_cont->mutex, mutex->thread_holding);
+
+    if (!plugin_lock) {
+      HTTP_SM_SET_DEFAULT_HANDLER(&HttpSM::get_http_schedule);
+      ink_assert(pending_action == NULL);
+      pending_action = mutex->thread_holding->schedule_in(this, HRTIME_MSECONDS(10));
+      return 0;
+    }
+  } else {
+    plugin_lock = false;
+  }
+
+  //handle Mutex;
+  schedule_cont->handleEvent ( event, this);
+  if (plugin_lock) {
+    Mutex_unlock(plugin_mutex, mutex->thread_holding);
+  }
+
+  return 0;
+}
+
+bool
+HttpSM::set_server_session_private(bool private_session)
+{
+  if (server_session != NULL) {
+    server_session->private_session = private_session;
+    return true;
+  }
+  return false;
+}
+
+inline bool
+HttpSM::is_private()
+{
+    bool res = false;
+    if (server_session) {
+        res = server_session->private_session;
+    } else if (ua_session) {
+        HttpServerSession * ss = ua_session->get_server_session();
+        if (ss) {
+            res = ss->private_session;
+        }
+    }
+    return res;
+}
+
+// check to see if redirection is enabled and less than max redirections tries or if a plugin enabled redirection
+inline bool
+HttpSM::is_redirect_required()
+{
+  bool redirect_required = (enable_redirection && (redirection_tries <= HttpConfig::m_master.number_of_redirections));
+
+  DebugSM("http_redirect", "is_redirect_required %u", redirect_required);
+
+  if (redirect_required == true) {
+    HTTPStatus status = t_state.hdr_info.client_response.status_get();
+    // check to see if the response from the orgin was a 301, 302, or 303
+    switch (status)
+    {
+    case HTTP_STATUS_MULTIPLE_CHOICES:     //300
+    case HTTP_STATUS_MOVED_PERMANENTLY:    //301
+    case HTTP_STATUS_MOVED_TEMPORARILY:    //302
+    case HTTP_STATUS_SEE_OTHER:            //303
+    case HTTP_STATUS_USE_PROXY:            //305
+    case HTTP_STATUS_TEMPORARY_REDIRECT:   //307
+      redirect_required = true;
+      break;
+    default:
+      redirect_required = false;
+      break;
+    }
+
+    // if redirect_url is set by an user's plugin, ats will redirect to this url anyway.
+    if (redirect_url != NULL) {
+      redirect_required = true;
+    }
+  }
+  return redirect_required;
+}
diff --git a/proxy/http/HttpSM.h b/proxy/http/HttpSM.h
new file mode 100644
index 00000000..13121ecb
--- /dev/null
+++ b/proxy/http/HttpSM.h
@@ -0,0 +1,644 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpSM.h
+
+   Description:
+
+
+ ****************************************************************************/
+
+#ifndef _HTTP_SM_H_
+#define _HTTP_SM_H_
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "HttpCacheSM.h"
+#include "HttpTransact.h"
+#include "HttpTunnel.h"
+#include "InkAPIInternal.h"
+#include "StatSystem.h"
+#include "HttpClientSession.h"
+#include "HdrUtils.h"
+//#include "AuthHttpAdapter.h"
+
+/* Enable LAZY_BUF_ALLOC to delay allocation of buffers until they
+ * are actually required.
+ * Enabling LAZY_BUF_ALLOC, stop Http code from allocation space
+ * for header buffer and tunnel buffer. The allocation is done by
+ * the net code in read_from_net when data is actually written into
+ * the buffer. By allocating memory only when it is required we can
+ * reduce the memory consumed by TS process.
+ *
+ * IMPORTANT NOTE: enable/disable LAZY_BUF_ALLOC in HttpServerSession.h
+ * as well.
+ */
+#define LAZY_BUF_ALLOC
+
+#define HTTP_API_CONTINUE   (INK_API_EVENT_EVENTS_START + 0)
+#define HTTP_API_ERROR      (INK_API_EVENT_EVENTS_START + 1)
+
+// The default size for http header buffers when we don't
+//   need to include extra space for the document
+static size_t const HTTP_HEADER_BUFFER_SIZE_INDEX = CLIENT_CONNECTION_FIRST_READ_BUFFER_SIZE_INDEX;
+
+// We want to use a larger buffer size when reading response
+//   headers from the origin server since we want to get
+//   as much of the document as possible on the first read
+//   Marco benchmarked about 3% ops/second improvement using
+//   the larger buffer size
+static size_t const HTTP_SERVER_RESP_HDR_BUFFER_INDEX = BUFFER_SIZE_INDEX_8K;
+
+class HttpServerSession;
+class AuthHttpAdapter;
+
+class HttpSM;
+typedef int (HttpSM::*HttpSMHandler) (int event, void *data);
+
+enum HttpVC_t
+{ HTTP_UNKNOWN = 0, HTTP_UA_VC, HTTP_SERVER_VC,
+  HTTP_TRANSFORM_VC, HTTP_CACHE_READ_VC,
+  HTTP_CACHE_WRITE_VC, HTTP_RAW_SERVER_VC
+};
+
+enum BackgroundFill_t
+{
+  BACKGROUND_FILL_NONE = 0,
+  BACKGROUND_FILL_STARTED,
+  BACKGROUND_FILL_ABORTED,
+  BACKGROUND_FILL_COMPLETED
+};
+
+extern ink_mutex debug_sm_list_mutex;
+
+struct HttpVCTableEntry
+{
+  VConnection *vc;
+  MIOBuffer *read_buffer;
+  MIOBuffer *write_buffer;
+  VIO *read_vio;
+  VIO *write_vio;
+  HttpSMHandler vc_handler;
+  HttpVC_t vc_type;
+  bool eos;
+  bool in_tunnel;
+};
+
+struct HttpVCTable
+{
+  static const int vc_table_max_entries = 4;
+  HttpVCTable();
+
+  HttpVCTableEntry *new_entry();
+  HttpVCTableEntry *find_entry(VConnection *);
+  HttpVCTableEntry *find_entry(VIO *);
+  void remove_entry(HttpVCTableEntry *);
+  void cleanup_entry(HttpVCTableEntry *);
+  void cleanup_all();
+  bool is_table_clear() const;
+
+private:
+  HttpVCTableEntry vc_table[vc_table_max_entries];
+};
+
+inline bool
+HttpVCTable::is_table_clear() const
+{
+  for (int i = 0; i < vc_table_max_entries; i++) {
+    if (vc_table[i].vc != NULL) {
+      return false;
+    }
+  }
+  return true;
+}
+
+struct HttpTransformInfo
+{
+  HttpVCTableEntry *entry;
+  VConnection *vc;
+
+    HttpTransformInfo():entry(NULL), vc(NULL)
+  {
+  }
+};
+#define HISTORY_SIZE  64
+
+enum
+{
+  HTTP_SM_MAGIC_ALIVE = 0x0000FEED,
+  HTTP_SM_MAGIC_DEAD = 0xDEADFEED
+};
+
+enum
+{
+  HTTP_SM_POST_UNKNOWN = 0,
+  HTTP_SM_POST_UA_FAIL = 1,
+  HTTP_SM_POST_SERVER_FAIL = 2,
+  HTTP_SM_POST_SUCCESS = 3
+};
+
+enum
+{
+  HTTP_SM_TRANSFORM_OPEN = 0,
+  HTTP_SM_TRANSFORM_CLOSED = 1,
+  HTTP_SM_TRANSFORM_FAIL = 2
+};
+
+enum HttpApiState_t
+{
+  HTTP_API_NO_CALLOUT,
+  HTTP_API_IN_CALLOUT,
+  HTTP_API_DEFERED_CLOSE,
+  HTTP_API_DEFERED_SERVER_ERROR
+};
+
+
+enum HttpPluginTunnel_t
+{
+  HTTP_NO_PLUGIN_TUNNEL = 0,
+  HTTP_PLUGIN_AS_SERVER,
+  HTTP_PLUGIN_AS_INTERCEPT
+};
+
+class CoreUtils;
+class PluginVCCore;
+
+class HttpSM: public Continuation
+{
+  friend class HttpPagesHandler;
+  friend class CoreUtils;
+public:
+  HttpSM();
+  void cleanup();
+  virtual void destroy();
+
+  static HttpSM *allocate();
+  HttpCacheSM & get_cache_sm();       //Added to get the object of CacheSM YTS Team, yamsat
+  HttpVCTableEntry *get_ua_entry();     //Added to get the ua_entry pointer  - YTS-TEAM
+  static void _instantiate_func(HttpSM * prototype, HttpSM * new_instance);
+  static void _make_scatter_list(HttpSM * prototype);
+
+  void init();
+
+  void attach_client_session(HttpClientSession * client_vc_arg, IOBufferReader * buffer_reader);
+
+  // Called by httpSessionManager so that we can reset
+  //  the session timeouts and initiate a read while
+  //  holding the lock for the server session
+  void attach_server_session(HttpServerSession * s);
+
+  // Called by transact.  Updates are fire and forget
+  //  so there are no callbacks and are safe to do
+  //  directly from transact
+  void do_hostdb_update_if_necessary();
+
+  // Called by transact. Decide if cached response supports Range and
+  // setup Range transfomration if so.
+  // return true when the Range is unsatisfiable
+  void do_range_setup_if_necessary();
+  
+  void do_range_parse(MIMEField *range_field);
+  void calculate_output_cl(int64_t, int64_t);
+  void parse_range_and_compare(MIMEField*, int64_t);
+  
+  // Called by transact to prevent reset problems
+  //  failed PUSH requests
+  void set_ua_half_close_flag();
+
+  // Called by either state_hostdb_lookup() or directly
+  //   by the HostDB in the case of inline completion
+  // Handles the setting of all state necessary before
+  //   calling transact to process the hostdb lookup
+  // A NULL 'r' argument indicates the hostdb lookup failed
+  void process_hostdb_info(HostDBInfo * r);
+  void process_srv_info(HostDBInfo * r);
+
+  // Called by transact.  Synchronous.
+  VConnection *do_transform_open();
+  VConnection *do_post_transform_open();
+
+  // Called from InkAPI.cc which acquires the state machine lock
+  //  before calling
+  int state_api_callback(int event, void *data);
+  int state_api_callout(int event, void *data);
+
+  // Used for Http Stat Pages
+  HttpTunnel *get_tunnel()
+  {
+    return &tunnel;
+  };
+
+  // Debugging routines to dump the SM history, hdrs
+  void dump_state_on_assert();
+  void dump_state_hdr(HTTPHdr *h, const char *s);
+
+  // Functions for manipulating api hooks
+  void txn_hook_append(TSHttpHookID id, INKContInternal * cont);
+  void txn_hook_prepend(TSHttpHookID id, INKContInternal * cont);
+  APIHook *txn_hook_get(TSHttpHookID id);
+
+  void add_history_entry(const char *fileline, int event, int reentrant);
+  void add_cache_sm();
+  bool is_private();
+  bool is_redirect_required();
+
+  int64_t sm_id;
+  unsigned int magic;
+
+  //YTS Team, yamsat Plugin
+  bool enable_redirection;      //To check if redirection is enabled
+  char *redirect_url;     //url for force redirect (provide users a functionality to redirect to another url when needed)
+  int redirect_url_len;
+  int redirection_tries;        //To monitor number of redirections
+  int64_t transfered_bytes;     //Added to calculate POST data
+  bool post_failed;             //Added to identify post failure
+  bool debug_on;               //Transaction specific debug flag
+
+  // Tunneling request to plugin
+  HttpPluginTunnel_t plugin_tunnel_type;
+  PluginVCCore *plugin_tunnel;
+
+  HttpTransact::State t_state;
+
+protected:
+  int reentrancy_count;
+
+  struct History
+  {
+    const char *fileline;
+    unsigned short event;
+    short reentrancy;
+  };
+  History history[HISTORY_SIZE];
+  int history_pos;
+
+  HttpTunnel tunnel;
+
+  HttpVCTable vc_table;
+
+  HttpVCTableEntry *ua_entry;
+  void remove_ua_entry();
+
+public:
+  HttpClientSession *ua_session;
+  BackgroundFill_t background_fill;
+  //AuthHttpAdapter authAdapter;
+  void set_http_schedule(Continuation *);
+  int get_http_schedule(int event, void *data);
+
+protected:
+  IOBufferReader * ua_buffer_reader;
+  IOBufferReader * ua_raw_buffer_reader;
+
+  HttpVCTableEntry *server_entry;
+  HttpServerSession *server_session;
+  int shared_session_retries;
+  IOBufferReader *server_buffer_reader;
+  void remove_server_entry();
+
+  HttpTransformInfo transform_info;
+  HttpTransformInfo post_transform_info;
+  /// Set if plugin client / user agents are active.
+  /// Need primarily for cleanup.
+  bool has_active_plugin_agents;
+
+  HttpCacheSM cache_sm;
+  HttpCacheSM transform_cache_sm;
+  HttpCacheSM *second_cache_sm;
+
+  HttpSMHandler default_handler;
+  Action *pending_action;
+  Action *historical_action;
+  Continuation *schedule_cont;
+
+  HTTPParser http_parser;
+  void start_sub_sm();
+
+  int main_handler(int event, void *data);
+  int tunnel_handler(int event, void *data);
+  int tunnel_handler_push(int event, void *data);
+  int tunnel_handler_post(int event, void *data);
+
+  //YTS Team, yamsat Plugin
+  int tunnel_handler_for_partial_post(int event, void *data);
+
+  void tunnel_handler_post_or_put(HttpTunnelProducer * p);
+
+  int tunnel_handler_100_continue(int event, void *data);
+  int tunnel_handler_cache_fill(int event, void *data);
+#ifdef PROXY_DRAIN
+  int state_drain_client_request_body(int event, void *data);
+#endif /* PROXY_DRAIN */
+  int state_read_client_request_header(int event, void *data);
+  int state_watch_for_client_abort(int event, void *data);
+  int state_read_push_response_header(int event, void *data);
+  int state_srv_lookup(int event, void *data);
+  int state_hostdb_lookup(int event, void *data);
+  int state_hostdb_reverse_lookup(int event, void *data);
+  int state_mark_os_down(int event, void *data);
+  int state_handle_stat_page(int event, void *data);
+  int state_icp_lookup(int event, void *data);
+  int state_auth_callback(int event, void *data);
+  int state_add_to_list(int event, void *data);
+  int state_remove_from_list(int event, void *data);
+  int state_congestion_control_lookup(int event, void *data);
+
+//Y! ebalsa: remap handlers
+  int state_remap_request(int event, void *data);
+  void do_remap_request(bool);
+
+  // Cache Handlers
+  int state_cache_open_read(int event, void *data);
+  int state_cache_open_write(int event, void *data);
+
+  // Http Server Handlers
+  int state_http_server_open(int event, void *data);
+  int state_raw_http_server_open(int event, void *data);
+  int state_send_server_request_header(int event, void *data);
+  int state_acquire_server_read(int event, void *data);
+  int state_read_server_response_header(int event, void *data);
+
+  // API
+  int state_request_wait_for_transform_read(int event, void *data);
+  int state_response_wait_for_transform_read(int event, void *data);
+  int state_common_wait_for_transform_read(HttpTransformInfo * t_info, HttpSMHandler tunnel_handler, int event, void *data);
+
+  // Tunnel event handlers
+  int tunnel_handler_server(int event, HttpTunnelProducer * p);
+  int tunnel_handler_ua(int event, HttpTunnelConsumer * c);
+  int tunnel_handler_ua_push(int event, HttpTunnelProducer * p);
+  int tunnel_handler_100_continue_ua(int event, HttpTunnelConsumer * c);
+  int tunnel_handler_cache_write(int event, HttpTunnelConsumer * c);
+  int tunnel_handler_cache_read(int event, HttpTunnelProducer * p);
+  int tunnel_handler_post_ua(int event, HttpTunnelProducer * c);
+  int tunnel_handler_post_server(int event, HttpTunnelConsumer * c);
+  int tunnel_handler_ssl_producer(int event, HttpTunnelProducer * p);
+  int tunnel_handler_ssl_consumer(int event, HttpTunnelConsumer * p);
+  int tunnel_handler_transform_write(int event, HttpTunnelConsumer * c);
+  int tunnel_handler_transform_read(int event, HttpTunnelProducer * p);
+  int tunnel_handler_plugin_agent(int event, HttpTunnelConsumer * c);
+
+  void do_hostdb_lookup();
+  void do_hostdb_reverse_lookup();
+  void do_cache_lookup_and_read();
+  void do_http_server_open(bool raw = false);
+  void do_setup_post_tunnel(HttpVC_t to_vc_type);
+  void do_cache_prepare_write();
+  void do_cache_prepare_write_transform();
+  void do_cache_prepare_update();
+  void do_cache_prepare_action(HttpCacheSM * c_sm,
+                               CacheHTTPInfo * object_read_info, bool retry, bool allow_multiple = false);
+  void do_cache_delete_all_alts(Continuation * cont);
+  void do_icp_lookup();
+  void do_auth_callout();
+  void do_api_callout();
+  void do_api_callout_internal();
+  void do_redirect();
+  void redirect_request(const char *redirect_url, const int redirect_len);
+#ifdef PROXY_DRAIN
+  void do_drain_request_body();
+#endif
+
+  bool do_congestion_control_lookup();
+
+  virtual void handle_api_return();
+  void handle_server_setup_error(int event, void *data);
+  void handle_http_server_open();
+  void handle_post_failure();
+  void mark_host_failure(HostDBInfo * info, time_t time_down);
+  void mark_server_down_on_client_abort();
+  void release_server_session(bool serve_from_cache = false);
+  void set_ua_abort(HttpTransact::AbortState_t ua_abort, int event);
+  int write_header_into_buffer(HTTPHdr * h, MIOBuffer * b);
+  int write_response_header_into_buffer(HTTPHdr * h, MIOBuffer * b);
+  void setup_blind_tunnel_port();
+  void setup_client_header_nca();
+  void setup_client_read_request_header();
+  void setup_push_read_response_header();
+  void setup_server_read_response_header();
+  void setup_cache_lookup_complete_api();
+  void setup_server_send_request();
+  void setup_server_send_request_api();
+  void setup_server_transfer();
+  void setup_server_transfer_to_cache_only();
+  void setup_cache_read_transfer();
+  void setup_internal_transfer(HttpSMHandler handler);
+  void setup_error_transfer();
+  void setup_100_continue_transfer();
+  void setup_push_transfer_to_cache();
+  void setup_transform_to_server_transfer();
+  void setup_cache_write_transfer(HttpCacheSM * c_sm,
+                                  VConnection * source_vc, HTTPInfo * store_info, int64_t skip_bytes, const char *name);
+  void issue_cache_update();
+  void perform_cache_write_action();
+  void perform_transform_cache_write_action();
+  void perform_nca_cache_action();
+  void setup_blind_tunnel(bool send_response_hdr);
+  HttpTunnelProducer *setup_server_transfer_to_transform();
+  HttpTunnelProducer *setup_transfer_from_transform();
+  HttpTunnelProducer *setup_cache_transfer_to_transform();
+  HttpTunnelProducer *setup_transfer_from_transform_to_cache_only();
+  void setup_plugin_agents(HttpTunnelProducer* p);
+
+  HttpTransact::StateMachineAction_t last_action;
+  int (HttpSM::*m_last_state) (int event, void *data);
+  virtual void set_next_state();
+  void call_transact_and_set_next_state(TransactEntryFunc_t f);
+
+  bool is_http_server_eos_truncation(HttpTunnelProducer *);
+  bool is_bg_fill_necessary(HttpTunnelConsumer * c);
+  int find_server_buffer_size();
+  int find_http_resp_buffer_size(int64_t cl);
+  int64_t server_transfer_init(MIOBuffer * buf, int hdr_size);
+
+public:
+  // Stats & Logging Info
+  int client_request_hdr_bytes;
+  int64_t client_request_body_bytes;
+  int server_request_hdr_bytes;
+  int64_t server_request_body_bytes;
+  int server_response_hdr_bytes;
+  int64_t server_response_body_bytes;
+  int client_response_hdr_bytes;
+  int64_t client_response_body_bytes;
+  int cache_response_hdr_bytes;
+  int64_t cache_response_body_bytes;
+  int pushed_response_hdr_bytes;
+  int64_t pushed_response_body_bytes;
+  TransactionMilestones milestones;
+  // The next two enable plugins to tag the state machine for
+  // the purposes of logging so the instances can be correlated
+  // with the source plugin.
+  char const* plugin_tag;
+  int64_t plugin_id;
+
+  // hooks_set records whether there are any hooks relevant
+  //  to this transaction.  Used to avoid costly calls
+  //  do_api_callout_internal()
+  int hooks_set;
+
+protected:
+  TSHttpHookID cur_hook_id;
+  APIHook *cur_hook;
+
+  //
+  // Continuation time keeper
+  int64_t prev_hook_start_time;
+
+  int cur_hooks;
+  HttpApiState_t callout_state;
+
+  // api_hooks must not be changed directly
+  //  Use txn_hook_{ap,pre}pend so hooks_set is
+  //  updated
+  HttpAPIHooks api_hooks;
+
+  // The terminate flag is set by handlers and checked by the
+  //   main handler who will terminate the state machine
+  //   when the flag is set
+  bool terminate_sm;
+  bool kill_this_async_done;
+  virtual int kill_this_async_hook(int event, void *data);
+  void kill_this();
+  void update_stats();
+  void transform_cleanup(TSHttpHookID hook, HttpTransformInfo * info);
+  bool is_transparent_passthrough_allowed();
+  void plugin_agents_cleanup();
+
+public:
+  LINK(HttpSM, debug_link);
+
+public:
+  bool set_server_session_private(bool private_session);
+};
+
+//Function to get the cache_sm object - YTS Team, yamsat
+inline HttpCacheSM &
+HttpSM::get_cache_sm()
+{
+  return cache_sm;
+}
+
+//Function to get the ua_entry pointer - YTS Team, yamsat
+inline HttpVCTableEntry *
+HttpSM::get_ua_entry()
+{
+  return ua_entry;
+}
+
+inline HttpSM *
+HttpSM::allocate()
+{
+  extern SparseClassAllocator<HttpSM> httpSMAllocator;
+  return httpSMAllocator.alloc();
+}
+
+inline void
+HttpSM::remove_ua_entry()
+{
+  vc_table.remove_entry(ua_entry);
+  ua_entry = NULL;
+}
+
+inline void
+HttpSM::remove_server_entry()
+{
+  if (server_entry) {
+    vc_table.remove_entry(server_entry);
+    server_entry = NULL;
+  }
+}
+
+inline int
+HttpSM::write_response_header_into_buffer(HTTPHdr * h, MIOBuffer * b)
+{
+  if (t_state.client_info.http_version == HTTPVersion(0, 9)) {
+    return 0;
+  } else {
+    return write_header_into_buffer(h, b);
+  }
+}
+
+inline void
+HttpSM::add_history_entry(const char *fileline, int event, int reentrant)
+{
+  int pos = history_pos++ % HISTORY_SIZE;
+  history[pos].fileline = fileline;
+  history[pos].event = (unsigned short) event;
+  history[pos].reentrancy = (short) reentrant;
+}
+
+inline int
+HttpSM::find_server_buffer_size()
+{
+  return find_http_resp_buffer_size(t_state.hdr_info.response_content_length);
+}
+
+inline void
+HttpSM::txn_hook_append(TSHttpHookID id, INKContInternal * cont)
+{
+  api_hooks.append(id, cont);
+  hooks_set = 1;
+}
+
+inline void
+HttpSM::txn_hook_prepend(TSHttpHookID id, INKContInternal * cont)
+{
+  api_hooks.prepend(id, cont);
+  hooks_set = 1;
+}
+
+inline APIHook *
+HttpSM::txn_hook_get(TSHttpHookID id)
+{
+  return api_hooks.get(id);
+}
+
+inline void
+HttpSM::add_cache_sm()
+{
+  if (second_cache_sm == NULL) {
+    second_cache_sm = new HttpCacheSM;
+    second_cache_sm->init(this, mutex);
+    second_cache_sm->set_lookup_url(cache_sm.get_lookup_url());
+    if (t_state.cache_info.object_read != NULL) {
+      second_cache_sm->cache_read_vc = cache_sm.cache_read_vc;
+      cache_sm.cache_read_vc = NULL;
+      second_cache_sm->read_locked = cache_sm.read_locked;
+      t_state.cache_info.second_object_read = t_state.cache_info.object_read;
+      t_state.cache_info.object_read = NULL;
+    }
+  }
+}
+
+inline bool
+HttpSM::is_transparent_passthrough_allowed()
+{
+  return (t_state.client_info.is_transparent &&
+          ua_session->f_transparent_passthrough &&
+          ua_session->get_transact_count() == 1);
+}
+
+#endif
diff --git a/proxy/http/HttpServerSession.cc b/proxy/http/HttpServerSession.cc
new file mode 100644
index 00000000..2feeeb63
--- /dev/null
+++ b/proxy/http/HttpServerSession.cc
@@ -0,0 +1,188 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpServerSession.cc
+
+   Description:
+
+ ****************************************************************************/
+#include "ink_config.h"
+#include "Allocator.h"
+#include "HttpServerSession.h"
+#include "HttpSessionManager.h"
+#include "HttpSM.h"
+
+static int64_t next_ss_id = (int64_t) 0;
+ClassAllocator<HttpServerSession> httpServerSessionAllocator("httpServerSessionAllocator");
+
+
+void
+HttpServerSession::destroy()
+{
+  ink_release_assert(server_vc == NULL);
+  ink_assert(read_buffer);
+  ink_assert(server_trans_stat == 0);
+  magic = HTTP_SS_MAGIC_DEAD;
+  if (read_buffer) {
+    free_MIOBuffer(read_buffer);
+    read_buffer = NULL;
+  }
+
+  mutex.clear();
+  if (TS_SERVER_SESSION_SHARING_POOL_THREAD == sharing_pool)
+    THREAD_FREE(this, httpServerSessionAllocator, this_thread());
+  else
+    httpServerSessionAllocator.free(this);
+}
+
+void
+HttpServerSession::new_connection(NetVConnection *new_vc)
+{
+  ink_assert(new_vc != NULL);
+  server_vc = new_vc;
+
+  // Used to do e.g. mutex = new_vc->thread->mutex; when per-thread pools enabled
+  mutex = new_vc->mutex;
+
+  // Unique client session identifier.
+  con_id = ink_atomic_increment((int64_t *) (&next_ss_id), 1);
+
+  magic = HTTP_SS_MAGIC_ALIVE;
+  HTTP_SUM_GLOBAL_DYN_STAT(http_current_server_connections_stat, 1); // Update the true global stat
+  HTTP_INCREMENT_DYN_STAT(http_total_server_connections_stat);
+  // Check to see if we are limiting the number of connections
+  // per host
+  if (enable_origin_connection_limiting == true) {
+    if (connection_count == NULL)
+      connection_count = ConnectionCount::getInstance();
+    connection_count->incrementCount(server_ip);
+    char addrbuf[INET6_ADDRSTRLEN];
+    Debug("http_ss", "[%" PRId64 "] new connection, ip: %s, count: %u", 
+        con_id, 
+        ats_ip_ntop(&server_ip.sa, addrbuf, sizeof(addrbuf)), connection_count->getCount(server_ip));
+  }
+#ifdef LAZY_BUF_ALLOC
+  read_buffer = new_empty_MIOBuffer(HTTP_SERVER_RESP_HDR_BUFFER_INDEX);
+#else
+  read_buffer = new_MIOBuffer(HTTP_SERVER_RESP_HDR_BUFFER_INDEX);
+#endif
+  buf_reader = read_buffer->alloc_reader();
+  Debug("http_ss", "[%" PRId64 "] session born, netvc %p", con_id, new_vc);
+  state = HSS_INIT;
+}
+
+VIO *
+HttpServerSession::do_io_read(Continuation *c, int64_t nbytes, MIOBuffer *buf)
+{
+  return server_vc->do_io_read(c, nbytes, buf);
+}
+
+VIO *
+HttpServerSession::do_io_write(Continuation *c, int64_t nbytes, IOBufferReader *buf, bool owner)
+{
+  return server_vc->do_io_write(c, nbytes, buf, owner);
+}
+
+void
+HttpServerSession::do_io_shutdown(ShutdownHowTo_t howto)
+{
+  server_vc->do_io_shutdown(howto);
+}
+
+void
+HttpServerSession::do_io_close(int alerrno)
+{
+  if (state == HSS_ACTIVE) {
+    HTTP_DECREMENT_DYN_STAT(http_current_server_transactions_stat);
+    this->server_trans_stat--;
+  }
+
+  Debug("http_ss", "[%" PRId64 "] session closing, netvc %p", con_id, server_vc);
+
+  server_vc->do_io_close(alerrno);
+  server_vc = NULL;
+
+  HTTP_SUM_GLOBAL_DYN_STAT(http_current_server_connections_stat, -1); // Make sure to work on the global stat
+  HTTP_SUM_DYN_STAT(http_transactions_per_server_con, transact_count);
+
+  // Check to see if we are limiting the number of connections
+  // per host
+  if (enable_origin_connection_limiting == true) {
+    if (connection_count->getCount(server_ip) > 0) {
+      connection_count->incrementCount(server_ip, -1);
+      char addrbuf[INET6_ADDRSTRLEN];
+      Debug("http_ss", "[%" PRId64 "] connection closed, ip: %s, count: %u",
+            con_id, 
+            ats_ip_ntop(&server_ip.sa, addrbuf, sizeof(addrbuf)), 
+            connection_count->getCount(server_ip));
+    } else {
+      Error("[%" PRId64 "] number of connections should be greater then zero: %u",
+            con_id, connection_count->getCount(server_ip));
+    }
+  }
+
+  if (to_parent_proxy) {
+    HTTP_DECREMENT_DYN_STAT(http_current_parent_proxy_connections_stat);
+  }
+  destroy();
+}
+
+void
+HttpServerSession::reenable(VIO *vio)
+{
+  server_vc->reenable(vio);
+}
+
+// void HttpServerSession::release()
+//
+//   Releases the session for K-A reuse
+//
+void
+HttpServerSession::release()
+{
+  // Set our state to KA for stat issues
+  state = HSS_KA_SHARED;
+
+  // Private sessions are never released back to the shared pool
+  if (private_session || TS_SERVER_SESSION_SHARING_MATCH_NONE == sharing_match) {
+    this->do_io_close();
+    return;
+  }
+
+  HSMresult_t r = httpSessionManager.release_session(this);
+  
+
+  if (r == HSM_RETRY) {
+    // Session could not be put in the session manager
+    //  due to lock contention
+    // FIX:  should retry instead of closing
+    this->do_io_close();
+  } else {
+    // The session was successfully put into the session
+    //    manager and it will manage it
+    // (Note: should never get HSM_NOT_FOUND here)
+    ink_assert(r == HSM_DONE);
+  }
+}
diff --git a/proxy/http/HttpServerSession.h b/proxy/http/HttpServerSession.h
new file mode 100644
index 00000000..c4fd75cf
--- /dev/null
+++ b/proxy/http/HttpServerSession.h
@@ -0,0 +1,184 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpServerSession.h
+
+   Description:
+
+
+ ****************************************************************************/
+
+#ifndef _HTTP_SERVER_SESSION_H_
+#define _HTTP_SERVER_SESSION_H_
+/* Enable LAZY_BUF_ALLOC to delay allocation of buffers until they
+* are actually required.
+* Enabling LAZY_BUF_ALLOC, stop Http code from allocation space
+* for header buffer and tunnel buffer. The allocation is done by
+* the net code in read_from_net when data is actually written into
+* the buffer. By allocating memory only when it is required we can
+* reduce the memory consumed by TS process.
+*
+* IMPORTANT NOTE: enable/disable LAZY_BUF_ALLOC in HttpSM.h as well.
+*/
+#define LAZY_BUF_ALLOC
+
+#include "P_Net.h"
+
+#include "HttpConnectionCount.h"
+#include "HttpProxyAPIEnums.h"
+
+class HttpSM;
+class MIOBuffer;
+class IOBufferReader;
+
+enum HSS_State {
+  HSS_INIT,
+  HSS_ACTIVE,
+  HSS_KA_CLIENT_SLAVE,
+  HSS_KA_SHARED
+};
+
+enum {
+  HTTP_SS_MAGIC_ALIVE = 0x0123FEED,
+  HTTP_SS_MAGIC_DEAD = 0xDEADFEED
+};
+
+class HttpServerSession : public VConnection
+{
+public:
+  HttpServerSession()
+    : VConnection(NULL),
+      hostname_hash(),
+      host_hash_computed(false), con_id(0), transact_count(0),
+      state(HSS_INIT), to_parent_proxy(false), server_trans_stat(0),
+      private_session(false),
+      sharing_match(TS_SERVER_SESSION_SHARING_MATCH_BOTH),
+      sharing_pool(TS_SERVER_SESSION_SHARING_POOL_GLOBAL),
+      enable_origin_connection_limiting(false),
+      connection_count(NULL), read_buffer(NULL),
+      server_vc(NULL), magic(HTTP_SS_MAGIC_DEAD), buf_reader(NULL)
+    { 
+      ink_zero(server_ip);
+    }
+
+  void destroy();
+  void new_connection(NetVConnection *new_vc);
+
+  void reset_read_buffer(void)
+  {
+    ink_assert(read_buffer->_writer);
+    ink_assert(buf_reader != NULL);
+    read_buffer->dealloc_all_readers();
+    read_buffer->_writer = NULL;
+    buf_reader = read_buffer->alloc_reader();
+  }
+
+  IOBufferReader *get_reader()
+  {
+    return buf_reader;
+  };
+
+  virtual VIO *do_io_read(Continuation *c, int64_t nbytes = INT64_MAX, MIOBuffer *buf = 0);
+
+  virtual VIO *do_io_write(Continuation *c = NULL, int64_t nbytes = INT64_MAX, IOBufferReader *buf = 0, bool owner = false);
+
+  virtual void do_io_close(int lerrno = -1);
+  virtual void do_io_shutdown(ShutdownHowTo_t howto);
+
+  virtual void reenable(VIO *vio);
+
+  void release();
+  void attach_hostname(const char *hostname);
+  NetVConnection *get_netvc()
+  {
+    return server_vc;
+  };
+
+  // Keys for matching hostnames
+  IpEndpoint server_ip;
+  INK_MD5 hostname_hash;
+  bool host_hash_computed;
+
+  int64_t con_id;
+  int transact_count;
+  HSS_State state;
+
+  // Used to determine whether the session is for parent proxy
+  // it is session to orgin server
+  // We need to determine whether a closed connection was to
+  // close parent proxy to update the
+  // proxy.process.http.current_parent_proxy_connections
+  bool to_parent_proxy;
+
+  // Used to verify we are recording the server
+  //   transaction stat properly
+  int server_trans_stat;
+
+  // Sessions become if authentication headers
+  //  are sent over them
+  bool private_session;
+
+  // Copy of the owning SM's server session sharing settings
+  TSServerSessionSharingMatchType sharing_match;
+  TSServerSessionSharingPoolType sharing_pool;
+  //  int share_session;
+
+  LINK(HttpServerSession, lru_link);
+  LINK(HttpServerSession, hash_link);
+
+  // Keep track of connection limiting and a pointer to the
+  // singleton that keeps track of the connection counts.
+  bool enable_origin_connection_limiting;
+  ConnectionCount *connection_count;
+
+  // The ServerSession owns the following buffer which use
+  //   for parsing the headers.  The server session needs to
+  //   own the buffer so we can go from a keep-alive state
+  //   to being acquired and parsing the header without
+  //   changing the buffer we are doing I/O on.  We can
+  //   not change the buffer for I/O without issuing a
+  //   an asyncronous cancel on NT
+  MIOBuffer *read_buffer;
+
+private:
+  HttpServerSession(HttpServerSession &);
+
+  NetVConnection *server_vc;
+  int magic;
+
+  IOBufferReader *buf_reader;
+};
+
+extern ClassAllocator<HttpServerSession> httpServerSessionAllocator;
+
+inline void
+HttpServerSession::attach_hostname(const char *hostname)
+{
+  if (!host_hash_computed) {
+    ink_code_md5((unsigned char *) hostname, strlen(hostname), (unsigned char *) &hostname_hash);
+    host_hash_computed = true;
+  }
+}
+#endif
diff --git a/proxy/http/HttpSessionAccept.cc b/proxy/http/HttpSessionAccept.cc
new file mode 100644
index 00000000..942a2155
--- /dev/null
+++ b/proxy/http/HttpSessionAccept.cc
@@ -0,0 +1,105 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HttpSessionAccept.h"
+#include "IPAllow.h"
+#include "HttpClientSession.h"
+#include "I_Machine.h"
+#include "Error.h"
+
+void
+HttpSessionAccept::accept(NetVConnection * netvc, MIOBuffer * iobuf, IOBufferReader * reader)
+{
+  sockaddr const* client_ip = netvc->get_remote_addr();
+  const AclRecord *acl_record = NULL;
+  ip_port_text_buffer ipb;
+  IpAllow::scoped_config ipallow;
+
+  // The backdoor port is now only bound to "localhost", so no
+  // reason to check for if it's incoming from "localhost" or not.
+  if (backdoor) {
+    acl_record = IpAllow::AllMethodAcl();
+  } else if (ipallow && (((acl_record = ipallow->match(client_ip)) == NULL) || (acl_record->isEmpty()))) {
+    ////////////////////////////////////////////////////
+    // if client address forbidden, close immediately //
+    ////////////////////////////////////////////////////
+    Warning("client '%s' prohibited by ip-allow policy", ats_ip_ntop(client_ip, ipb, sizeof(ipb)));
+    netvc->do_io_close();
+
+    return;
+  }
+
+  netvc->attributes = transport_type;
+
+  if (is_debug_tag_set("http_seq")) {
+    Debug("http_seq", "[HttpSessionAccept:mainEvent %p] accepted connection from %s transport type = %d", netvc, ats_ip_nptop(client_ip, ipb, sizeof(ipb)), netvc->attributes);
+  }
+
+  HttpClientSession *new_session = THREAD_ALLOC_INIT(httpClientSessionAllocator, this_ethread());
+
+  // copy over session related data.
+  new_session->f_outbound_transparent = f_outbound_transparent;
+  new_session->f_transparent_passthrough = f_transparent_passthrough;
+  new_session->outbound_ip4 = outbound_ip4;
+  new_session->outbound_ip6 = outbound_ip6;
+  new_session->outbound_port = outbound_port;
+  new_session->host_res_style = ats_host_res_from(client_ip->sa_family, host_res_preference);
+  new_session->acl_record = acl_record;
+
+  new_session->new_connection(netvc, backdoor, iobuf, reader);
+
+  return;
+}
+
+int
+HttpSessionAccept::mainEvent(int event, void *data)
+{
+  ink_release_assert(event == NET_EVENT_ACCEPT || event == EVENT_ERROR);
+  ink_release_assert((event == NET_EVENT_ACCEPT) ? (data != 0) : (1));
+
+  if (event == NET_EVENT_ACCEPT) {
+    this->accept(static_cast<NetVConnection *>(data), NULL, NULL);
+    return EVENT_CONT;
+  }
+
+  /////////////////
+  // EVENT_ERROR //
+  /////////////////
+  if (((long) data) == -ECONNABORTED) {
+    /////////////////////////////////////////////////
+    // Under Solaris, when accept() fails and sets //
+    // errno to EPROTO, it means the client has    //
+    // sent a TCP reset before the connection has  //
+    // been accepted by the server...  Note that   //
+    // in 2.5.1 with the Internet Server Supplement//
+    // and also in 2.6 the errno for this case has //
+    // changed from EPROTO to ECONNABORTED.        //
+    /////////////////////////////////////////////////
+
+    // FIX: add time to user_agent_hangup
+    HTTP_SUM_DYN_STAT(http_ua_msecs_counts_errors_pre_accept_hangups_stat, 0);
+  }
+
+  MachineFatal("HTTP accept received fatal error: errno = %d", -((int)(intptr_t)data));
+  return EVENT_CONT;
+}
diff --git a/proxy/http/HttpSessionAccept.h b/proxy/http/HttpSessionAccept.h
new file mode 100644
index 00000000..05033d3a
--- /dev/null
+++ b/proxy/http/HttpSessionAccept.h
@@ -0,0 +1,210 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_HttpSessionAccept_h_)
+#define _HttpSessionAccept_h_
+
+#include "libts.h"
+#include "P_EventSystem.h"
+#include "HttpConfig.h"
+#include "HTTP.h"
+#include "I_Net.h"
+#include <records/I_RecHttp.h>
+
+namespace detail {
+  /** Options for @c HttpSessionAccept.
+
+      @internal This is done as a separate class for two reasons.
+
+      The first is that in current usage many instances are created
+      with the same options so (for the client) this is easier and
+      more efficient than passing options directly to the @c
+      HttpSessionAccept or calling setters.
+
+      The second is that @c HttpSessionAccept is not provided with any thread
+      safety because it is intended as an immutable object. Putting
+      the setters here and not there makes that clearer.
+
+      We don't do this directly as nested class because we want to
+      inherit the data members rather than duplicate the declarations
+      and initializations.
+   */
+  class HttpSessionAcceptOptions {
+  private:
+    typedef HttpSessionAcceptOptions self; ///< Self reference type.
+  public:
+    HttpSessionAcceptOptions();
+
+    // Connection type (HttpProxyPort::TransportType)
+    int transport_type;
+    /// Set the transport type.
+    self& setTransportType(int);
+    /// Local address to bind for outbound connections.
+    IpAddr outbound_ip4;
+    /// Local address to bind for outbound connections.
+    IpAddr outbound_ip6;
+    /// Set the outbound IP address to @a ip.
+    self& setOutboundIp(IpAddr& ip);
+    /// Set the outbound IP address to @a ip.
+    self& setOutboundIp(IpEndpoint* ip);
+    /// Local port for outbound connection.
+    uint16_t outbound_port;
+    /// Set outbound port.
+    self& setOutboundPort(uint16_t);
+    /// Outbound transparent.
+    bool f_outbound_transparent;
+    /// Set outbound transparency.
+    self& setOutboundTransparent(bool);
+    /// Transparent pass-through.
+    bool f_transparent_passthrough;
+    /// Set transparent passthrough.
+    self& setTransparentPassthrough(bool);
+    /// Accepting backdoor connections.
+    bool backdoor;
+    /// Set backdoor accept.
+    self& setBackdoor(bool);
+    /// Host address resolution preference order.
+    HostResPreferenceOrder host_res_preference;
+    /// Set the host query preference.
+    self& setHostResPreference(HostResPreferenceOrder const);
+    /// Acceptable session protocols.
+    SessionProtocolSet session_protocol_preference;
+    /// Set the session protocol preference.
+    self& setSessionProtocolPreference(SessionProtocolSet const&);
+  };
+
+  inline HttpSessionAcceptOptions::HttpSessionAcceptOptions()
+    : transport_type(0)
+    , outbound_port(0)
+    , f_outbound_transparent(false)
+    , f_transparent_passthrough(false)
+    , backdoor(false)
+  {
+    memcpy(host_res_preference, host_res_default_preference_order, sizeof(host_res_preference));
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setTransportType(int type) {
+    transport_type =  type;
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setOutboundIp(IpAddr& ip) {
+    if (ip.isIp4()) outbound_ip4 = ip;
+    else if (ip.isIp6()) outbound_ip6 = ip;
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setOutboundIp(IpEndpoint* ip) {
+    if (ip->isIp4()) outbound_ip4 = *ip;
+    else if (ip->isIp6()) outbound_ip6 = *ip;
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setOutboundPort(uint16_t port) {
+    outbound_port = port;
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setOutboundTransparent(bool flag) {
+    f_outbound_transparent = flag;
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setTransparentPassthrough(bool flag) {
+    f_transparent_passthrough = flag;
+    return *this;
+  }
+
+ inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setBackdoor(bool flag) {
+    backdoor = flag;
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setHostResPreference(HostResPreferenceOrder const order) {
+    memcpy(host_res_preference, order, sizeof(host_res_preference));
+    return *this;
+  }
+
+  inline HttpSessionAcceptOptions&
+  HttpSessionAcceptOptions::setSessionProtocolPreference(SessionProtocolSet const& sp_set) {
+    session_protocol_preference = sp_set;
+    return *this;
+  }
+}
+
+/**
+   The continuation mutex is NULL to allow parellel accepts in NT. No
+   state is recorded by the handler and values are required to be set
+   during construction via the @c Options struct and never changed. So
+   a NULL mutex is safe.
+
+   Most of the state is simply passed on to the @c ClientSession after
+   an accept. It is done here because this is the least bad pathway
+   from the top level configuration to the HTTP session.
+*/
+
+class HttpSessionAccept: public SessionAccept, private detail::HttpSessionAcceptOptions
+{
+private:
+  typedef HttpSessionAccept self; ///< Self reference type.
+public:
+  /** Construction options.
+      Provide an easier to remember typedef for clients.
+  */
+  typedef detail::HttpSessionAcceptOptions Options;
+
+  /** Default constructor.
+      @internal We don't use a static default options object because of
+      initialization order issues. It is important to pick up data that is read
+      from the config file and a static is initialized long before that point.
+  */
+  HttpSessionAccept(Options const& opt = Options())
+    : SessionAccept(NULL)
+    , detail::HttpSessionAcceptOptions(opt) // copy these.
+  {
+    SET_HANDLER(&HttpSessionAccept::mainEvent);
+    return;
+  }
+
+  ~HttpSessionAccept()
+  {
+    return;
+  }
+
+  void accept(NetVConnection *, MIOBuffer *, IOBufferReader *);
+  int mainEvent(int event, void *netvc);
+
+private:
+    HttpSessionAccept(const HttpSessionAccept &);
+    HttpSessionAccept & operator =(const HttpSessionAccept &);
+};
+
+#endif
diff --git a/proxy/http/HttpSessionManager.cc b/proxy/http/HttpSessionManager.cc
new file mode 100644
index 00000000..8f68f792
--- /dev/null
+++ b/proxy/http/HttpSessionManager.cc
@@ -0,0 +1,335 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpSessionManager.cc
+
+   Description:
+
+
+ ****************************************************************************/
+
+#include "HttpSessionManager.h"
+#include "HttpClientSession.h"
+#include "HttpServerSession.h"
+#include "HttpSM.h"
+#include "HttpDebugNames.h"
+
+#define FIRST_LEVEL_HASH(x)   ats_ip_hash(x) % HSM_LEVEL1_BUCKETS
+#define SECOND_LEVEL_HASH(x)  ats_ip_hash(x) % HSM_LEVEL2_BUCKETS
+
+// Initialize a thread to handle HTTP session management
+void
+initialize_thread_for_http_sessions(EThread *thread, int /* thread_index ATS_UNUSED */)
+{
+  thread->l1_hash = new SessionBucket[HSM_LEVEL1_BUCKETS];
+  for (int i = 0; i < HSM_LEVEL1_BUCKETS; ++i)
+    thread->l1_hash[i].mutex = new_ProxyMutex();
+  //thread->l1_hash[i].mutex = thread->mutex;
+}
+
+
+HttpSessionManager httpSessionManager;
+
+SessionBucket::SessionBucket()
+  : Continuation(NULL)
+{
+  SET_HANDLER(&SessionBucket::session_handler);
+}
+
+// int SessionBucket::session_handler(int event, void* data)
+//
+//   Called from the NetProcessor to left us know that a
+//    connection has closed down
+//
+int
+SessionBucket::session_handler(int event, void *data)
+{
+  NetVConnection *net_vc = NULL;
+  HttpServerSession *s = NULL;
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+    // The server sent us data.  This is unexpected so
+    //   close the connection
+    /* Fall through */
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+    net_vc = (NetVConnection *) ((VIO *) data)->vc_server;
+    break;
+
+  default:
+    ink_release_assert(0);
+    return 0;
+  }
+
+  // Search the 2nd level bucket for appropriate netvc
+  int l2_index = SECOND_LEVEL_HASH(net_vc->get_remote_addr());
+  HttpConfigParams *http_config_params = HttpConfig::acquire();
+  bool found = false;
+
+  ink_assert(l2_index < HSM_LEVEL2_BUCKETS);
+  s = l2_hash[l2_index].head;
+
+  while (s != NULL) {
+    if (s->get_netvc() == net_vc) {
+      // if there was a timeout of some kind on a keep alive connection, and
+      // keeping the connection alive will not keep us above the # of max connections
+      // to the origin and we are below the min number of keep alive connections to this
+      // origin, then reset the timeouts on our end and do not close the connection
+      if ((event == VC_EVENT_INACTIVITY_TIMEOUT || event == VC_EVENT_ACTIVE_TIMEOUT) &&
+          s->state == HSS_KA_SHARED &&
+          s->enable_origin_connection_limiting) {
+        bool connection_count_below_min = s->connection_count->getCount(s->server_ip) <= http_config_params->origin_min_keep_alive_connections;
+
+        if (connection_count_below_min) {
+          Debug("http_ss", "[%" PRId64 "] [session_bucket] session received io notice [%s], "
+                "reseting timeout to maintain minimum number of connections", s->con_id,
+                HttpDebugNames::get_event_name(event));
+          s->get_netvc()->set_inactivity_timeout(s->get_netvc()->get_inactivity_timeout());
+          s->get_netvc()->set_active_timeout(s->get_netvc()->get_active_timeout());
+          found = true;
+          break;
+        }
+      }
+
+      // We've found our server session. Remove it from
+      //   our lists and close it down
+      Debug("http_ss", "[%" PRId64 "] [session_bucket] session received io notice [%s]",
+            s->con_id, HttpDebugNames::get_event_name(event));
+      ink_assert(s->state == HSS_KA_SHARED);
+      lru_list.remove(s);
+      l2_hash[l2_index].remove(s);
+      s->do_io_close();
+      found = true;
+      break;
+    } else {
+      s = s->hash_link.next;
+    }
+  }
+
+  HttpConfig::release(http_config_params);
+  if (found)
+    return 0;
+
+  // We failed to find our session.  This can only be the result
+  //  of a programming flaw
+  Warning("Connection leak from http keep-alive system");
+  ink_assert(0);
+  return 0;
+}
+
+
+void
+HttpSessionManager::init()
+{
+  // Initialize our internal (global) hash table
+  for (int i = 0; i < HSM_LEVEL1_BUCKETS; i++) {
+    g_l1_hash[i].mutex = new_ProxyMutex();
+  }
+}
+
+// TODO: Should this really purge all keep-alive sessions?
+void
+HttpSessionManager::purge_keepalives()
+{
+  EThread *ethread = this_ethread();
+
+  for (int i = 0; i < HSM_LEVEL1_BUCKETS; i++) {
+    SessionBucket *b = &g_l1_hash[i];
+    MUTEX_TRY_LOCK(lock, b->mutex, ethread);
+    if (lock) {
+      while (b->lru_list.head) {
+        HttpServerSession *sess = b->lru_list.head;
+        b->lru_list.remove(sess);
+        int l2_index = SECOND_LEVEL_HASH(&sess->server_ip.sa);
+        b->l2_hash[l2_index].remove(sess);
+        sess->do_io_close();
+      }
+    } else {
+      // Fix me, should retry
+    }
+  }
+}
+
+bool
+HttpSessionManager::match(HttpServerSession* s, sockaddr const* addr, INK_MD5 const& hostname_hash, HttpSM* sm)
+{
+  return
+    (TS_SERVER_SESSION_SHARING_MATCH_HOST == sm->t_state.txn_conf->server_session_sharing_match || 
+          (ats_ip_addr_eq(&s->server_ip.sa, addr) && ats_ip_port_cast(&s->server_ip.sa) == ats_ip_port_cast(addr)))
+    && (TS_SERVER_SESSION_SHARING_MATCH_IP == sm->t_state.txn_conf->server_session_sharing_match ||
+        s->hostname_hash == hostname_hash)
+    ;
+}
+
+bool
+HttpSessionManager::match(HttpServerSession* s, sockaddr const* addr, char const* hostname, HttpSM* sm)
+{
+  INK_MD5 hostname_hash;
+  ink_code_md5((unsigned char *) hostname, strlen(hostname), reinterpret_cast<unsigned char *>(&hostname_hash));
+  return match(s, addr, hostname_hash, sm);
+}
+
+HSMresult_t
+_acquire_session(SessionBucket *bucket, sockaddr const* ip, INK_MD5 &hostname_hash, HttpSM *sm)
+{
+  HttpServerSession *b;
+  HttpServerSession *to_return = NULL;
+  int l2_index = SECOND_LEVEL_HASH(ip);
+
+  ink_assert(l2_index < HSM_LEVEL2_BUCKETS);
+
+  // Check to see if an appropriate connection is in
+  //  the 2nd level bucket
+  b = bucket->l2_hash[l2_index].head;
+  while (b != NULL) {
+    if (HttpSessionManager::match(b, ip, hostname_hash, sm)) {
+      bucket->lru_list.remove(b);
+      bucket->l2_hash[l2_index].remove(b);
+      b->state = HSS_ACTIVE;
+      to_return = b;
+      Debug("http_ss", "[%" PRId64 "] [acquire session] " "return session from shared pool", to_return->con_id);
+      sm->attach_server_session(to_return);
+      return HSM_DONE;
+    }
+
+    b = b->hash_link.next;
+  }
+
+  return HSM_NOT_FOUND;
+}
+
+HSMresult_t
+HttpSessionManager::acquire_session(Continuation * /* cont ATS_UNUSED */, sockaddr const* ip,
+                                    const char *hostname, HttpClientSession *ua_session, HttpSM *sm)
+{
+  HttpServerSession *to_return = NULL;
+
+  //  We compute the hash for matching the hostname as the last
+  //  check for a match between the session the HttpSM is looking
+  //  for and the sessions we have. We have to use the hostname
+  //  as part of the match because some stupid servers can't
+  //  handle getting request for different virtual hosts over
+  //  the same keep-alive session (INKqa05429).
+  // 
+  //  Also, note the ip is required as well to maintain client
+  //  to server affinity so that we don't break certain types
+  //  of authentication.
+  INK_MD5 hostname_hash;
+
+  ink_code_md5((unsigned char *) hostname, strlen(hostname), (unsigned char *) &hostname_hash);
+
+  // First check to see if there is a server session bound
+  //   to the user agent session
+  to_return = ua_session->get_server_session();
+  if (to_return != NULL) {
+    ua_session->attach_server_session(NULL);
+
+    if (match(to_return, ip, hostname_hash, sm)) {
+      Debug("http_ss", "[%" PRId64 "] [acquire session] returning attached session ", to_return->con_id);
+      to_return->state = HSS_ACTIVE;
+      sm->attach_server_session(to_return);
+      return HSM_DONE;
+    }
+    // Release this session back to the main session pool and
+    //   then continue looking for one from the shared pool
+    Debug("http_ss", "[%" PRId64 "] [acquire session] " "session not a match, returning to shared pool", to_return->con_id);
+    to_return->release();
+    to_return = NULL;
+  }
+
+  // Now check to see if we have a connection is our
+  //  shared connection pool
+  int l1_index = FIRST_LEVEL_HASH(ip);
+  EThread *ethread = this_ethread();
+
+  ink_assert(l1_index < HSM_LEVEL1_BUCKETS);
+
+  if (TS_SERVER_SESSION_SHARING_POOL_THREAD == sm->t_state.txn_conf->server_session_sharing_pool) {
+    ink_assert(ethread->l1_hash);
+    return _acquire_session(ethread->l1_hash + l1_index, ip, hostname_hash, sm);
+  } else {
+    SessionBucket *bucket = g_l1_hash + l1_index;
+
+    MUTEX_TRY_LOCK(lock, bucket->mutex, ethread);
+    if (lock) {
+      return _acquire_session(bucket, ip, hostname_hash, sm);
+    } else {
+      Debug("http_ss", "[acquire session] could not acquire session due to lock contention");
+    }
+  }
+
+  return HSM_RETRY;
+}
+
+HSMresult_t
+HttpSessionManager::release_session(HttpServerSession *to_release)
+{
+  EThread *ethread = this_ethread();
+  int l1_index = FIRST_LEVEL_HASH(&to_release->server_ip.sa);
+  SessionBucket *bucket;
+
+  ink_assert(l1_index < HSM_LEVEL1_BUCKETS);
+
+  if (TS_SERVER_SESSION_SHARING_POOL_THREAD == to_release->sharing_pool) {
+    bucket = ethread->l1_hash + l1_index;
+  } else {
+    bucket = g_l1_hash + l1_index;
+  }
+
+  MUTEX_TRY_LOCK(lock, bucket->mutex, ethread);
+  if (lock) {
+    int l2_index = SECOND_LEVEL_HASH(&to_release->server_ip.sa);
+
+    ink_assert(l2_index < HSM_LEVEL2_BUCKETS);
+
+    // First insert the session on to our lists
+    bucket->lru_list.enqueue(to_release);
+    bucket->l2_hash[l2_index].push(to_release);
+    to_release->state = HSS_KA_SHARED;
+
+    // Now we need to issue a read on the connection to detect
+    //  if it closes on us.  We will get called back in the
+    //  continuation for this bucket, ensuring we have the lock
+    //  to remove the connection from our lists
+    to_release->do_io_read(bucket, INT64_MAX, to_release->read_buffer);
+
+    // Transfer control of the write side as well
+    to_release->do_io_write(bucket, 0, NULL);
+
+    // we probably don't need the active timeout set, but will leave it for now
+    to_release->get_netvc()->set_inactivity_timeout(to_release->get_netvc()->get_inactivity_timeout());
+    to_release->get_netvc()->set_active_timeout(to_release->get_netvc()->get_active_timeout());
+    Debug("http_ss", "[%" PRId64 "] [release session] " "session placed into shared pool", to_release->con_id);
+
+    return HSM_DONE;
+  } else {
+    Debug("http_ss", "[%" PRId64 "] [release session] could not release session due to lock contention", to_release->con_id);
+  }
+
+  return HSM_RETRY;
+}
diff --git a/proxy/http/HttpSessionManager.h b/proxy/http/HttpSessionManager.h
new file mode 100644
index 00000000..f6086eb7
--- /dev/null
+++ b/proxy/http/HttpSessionManager.h
@@ -0,0 +1,105 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpSessionManager.h
+
+   Description:
+
+
+ ****************************************************************************/
+
+
+#ifndef _HTTP_SESSION_MANAGER_H_
+#define _HTTP_SESSION_MANAGER_H_
+
+#include "P_EventSystem.h"
+#include "HttpServerSession.h"
+
+class HttpClientSession;
+class HttpSM;
+
+void
+initialize_thread_for_http_sessions(EThread *thread, int thread_index);
+
+#define  HSM_LEVEL1_BUCKETS   127
+#define  HSM_LEVEL2_BUCKETS   63
+
+class SessionBucket: public Continuation
+{
+public:
+  SessionBucket();
+  int session_handler(int event, void *data);
+  Que(HttpServerSession, lru_link) lru_list;
+  DList(HttpServerSession, hash_link) l2_hash[HSM_LEVEL2_BUCKETS];
+};
+
+enum HSMresult_t
+{
+  HSM_DONE,
+  HSM_RETRY,
+  HSM_NOT_FOUND
+};
+
+class HttpSessionManager
+{
+public:
+  HttpSessionManager()
+  { }
+
+  ~HttpSessionManager()
+  { }
+
+  HSMresult_t acquire_session(Continuation *cont, sockaddr const* addr, const char *hostname,
+                              HttpClientSession *ua_session, HttpSM *sm);
+  HSMresult_t release_session(HttpServerSession *to_release);
+  void purge_keepalives();
+  void init();
+  int main_handler(int event, void *data);
+
+  /// Check if a session is a valid match.
+  static bool match(
+		    HttpServerSession* s, ///< Session to check for match.
+		    sockaddr const* addr, ///< IP address.
+		    INK_MD5 const& hostname_hash, ///< Hash of hostname of origin server.
+		    HttpSM* sm ///< State machine (for configuration data).
+		    );
+
+  /// Check if a session is a valid match.
+  static bool match(
+		    HttpServerSession* s, ///< Session to check for match.
+		    sockaddr const* addr, ///< IP address.
+		    char const* hostname, ///< Hostname of origin server.
+		    HttpSM* sm ///< State machine (for configuration data).
+		    );
+
+
+private:
+  //    Global l1 hash, used when there is no per-thread buckets
+  SessionBucket g_l1_hash[HSM_LEVEL1_BUCKETS];
+};
+
+extern HttpSessionManager httpSessionManager;
+
+#endif
diff --git a/proxy/http/HttpTransact.cc b/proxy/http/HttpTransact.cc
new file mode 100644
index 00000000..bcb931b9
--- /dev/null
+++ b/proxy/http/HttpTransact.cc
@@ -0,0 +1,8810 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include <strings.h>
+#include <math.h>
+
+#include "HttpTransact.h"
+#include "HttpTransactHeaders.h"
+#include "HttpSM.h"
+#include "HttpCacheSM.h"        //Added to get the scope of HttpCacheSM object - YTS Team, yamsat
+#include "HttpDebugNames.h"
+#include "time.h"
+#include "ParseRules.h"
+#include "HTTP.h"
+#include "HdrUtils.h"
+#include "MimeTable.h"
+#include "logging/Log.h"
+#include "logging/LogUtils.h"
+#include "Error.h"
+#include "CacheControl.h"
+#include "ControlMatcher.h"
+#include "ReverseProxy.h"
+#include "HttpBodyFactory.h"
+#include "StatPages.h"
+#include "HttpClientSession.h"
+#include "I_Machine.h"
+#include "IPAllow.h"
+
+static char range_type[] = "multipart/byteranges; boundary=RANGE_SEPARATOR";
+#define RANGE_NUMBERS_LENGTH 60
+
+#define HTTP_INCREMENT_TRANS_STAT(X) update_stat(s, X, 1);
+#define HTTP_SUM_TRANS_STAT(X,S) update_stat(s, X, (ink_statval_t) S);
+
+#define TRANSACT_REMEMBER(_s,_e,_d) \
+{ \
+    HttpSM *sm = (_s)->state_machine; \
+    sm->history[sm->history_pos % HISTORY_SIZE].file  = __FILE__; \
+    sm->history[sm->history_pos % HISTORY_SIZE].line  = __LINE__; \
+    sm->history[sm->history_pos % HISTORY_SIZE].event = _e; \
+    sm->history[sm->history_pos % HISTORY_SIZE].data = (void *)_d; \
+    sm->history_pos += 1; \
+}
+
+#define DebugTxn(tag, ...) DebugSpecific((s->state_machine && s->state_machine->debug_on), tag, __VA_ARGS__)
+
+extern HttpBodyFactory *body_factory;
+extern int cache_config_vary_on_user_agent;
+
+static const char local_host_ip_str[] = "127.0.0.1";
+
+
+// someday, reduce the amount of duplicate code between this
+// function and _process_xxx_connection_field_in_outgoing_header
+inline static HTTPKeepAlive
+is_header_keep_alive(const HTTPVersion & http_version, const HTTPVersion & request_http_version, MIMEField* con_hdr    /*, bool* unknown_tokens */)
+{
+  enum
+  {
+    CON_TOKEN_NONE = 0,
+    CON_TOKEN_KEEP_ALIVE,
+    CON_TOKEN_CLOSE
+  };
+
+  int con_token = CON_TOKEN_NONE;
+  HTTPKeepAlive keep_alive = HTTP_NO_KEEPALIVE;
+  //    *unknown_tokens = false;
+
+  if (con_hdr) {
+    int val_len;
+    const char *val;
+
+    if (!con_hdr->has_dups()) { // try fastpath first
+      val = con_hdr->value_get(&val_len);
+      if (ptr_len_casecmp(val, val_len, "keep-alive", 10) == 0) {
+        con_token = CON_TOKEN_KEEP_ALIVE;
+      } else if (ptr_len_casecmp(val, val_len, "close", 5) == 0) {
+        con_token = CON_TOKEN_CLOSE;
+      }
+    }
+
+    if (con_token == CON_TOKEN_NONE) {
+      HdrCsvIter iter;
+
+      val = iter.get_first(con_hdr, &val_len);
+
+      while (val) {
+        if (ptr_len_casecmp(val, val_len, "keep-alive", 10) == 0) {
+          con_token = CON_TOKEN_KEEP_ALIVE;
+          /*
+             if (!*unknown_tokens) {
+             *unknown_tokens = (iter->get_next(&val_len) == NULL);
+             } */
+          break;
+        } else if (ptr_len_casecmp(val, val_len, "close", 5) == 0) {
+          con_token = CON_TOKEN_CLOSE;
+          /*
+             if (!*unknown_tokens) {
+             *unknown_tokens = (iter->get_next(&val_len) == NULL);
+             } */
+          break;
+        } else {
+          //      *unknown_tokens = true;
+        }
+        val = iter.get_next(&val_len);
+      }
+    }
+  }
+
+  if (HTTPVersion(1, 0) == http_version) {
+    keep_alive = (con_token == CON_TOKEN_KEEP_ALIVE) ? (HTTP_KEEPALIVE) : (HTTP_NO_KEEPALIVE);
+  } else if (HTTPVersion(1, 1) == http_version) {
+    // We deviate from the spec here.  If the we got a response where
+    //   where there is no Connection header and the request 1.0 was
+    //   1.0 don't treat this as keep-alive since Netscape-Enterprise/3.6 SP1
+    //   server doesn't
+    keep_alive = ((con_token == CON_TOKEN_KEEP_ALIVE) ||
+                  (con_token == CON_TOKEN_NONE && HTTPVersion(1, 1) == request_http_version)) ? (HTTP_KEEPALIVE)
+      : (HTTP_NO_KEEPALIVE);
+  } else {
+    keep_alive = HTTP_NO_KEEPALIVE;
+  }
+
+  return (keep_alive);
+}
+
+inline static bool
+is_request_conditional(HTTPHdr* header)
+{
+  uint64_t mask = (MIME_PRESENCE_IF_UNMODIFIED_SINCE |
+                 MIME_PRESENCE_IF_MODIFIED_SINCE | MIME_PRESENCE_IF_RANGE |
+                 MIME_PRESENCE_IF_MATCH | MIME_PRESENCE_IF_NONE_MATCH);
+  return (header->presence(mask) && (header->method_get_wksidx() == HTTP_WKSIDX_GET));
+}
+
+static inline bool
+is_port_in_range(int port, HttpConfigPortRange *pr)
+{
+  while (pr) {
+    if (pr->low == -1) {
+      return true;
+    } else if ((pr->low <= port) && (pr->high >= port)) {
+      return true;
+    }
+
+    pr = pr->next;
+  }
+
+  return false;
+}
+
+inline static void
+update_cache_control_information_from_config(HttpTransact::State* s)
+{
+  getCacheControl(&s->cache_control, &s->request_data, s->txn_conf);
+
+  s->cache_info.directives.does_config_permit_lookup &= (s->cache_control.never_cache == false);
+  s->cache_info.directives.does_config_permit_storing &= (s->cache_control.never_cache == false);
+
+  s->cache_info.directives.does_client_permit_storing =
+    HttpTransact::does_client_request_permit_storing(&s->cache_control, &s->hdr_info.client_request);
+
+  s->cache_info.directives.does_client_permit_lookup =
+    HttpTransact::does_client_request_permit_cached_response(s->txn_conf, &s->cache_control,
+                                                             &s->hdr_info.client_request, s->via_string);
+
+  s->cache_info.directives.does_client_permit_dns_storing =
+    HttpTransact::does_client_request_permit_dns_caching(&s->cache_control, &s->hdr_info.client_request);
+
+  if (s->client_info.http_version == HTTPVersion(0, 9)) {
+    s->cache_info.directives.does_client_permit_lookup = false;
+    s->cache_info.directives.does_client_permit_storing = false;
+  }
+
+  // Less than 0 means it wasn't overridden, so leave it alone.
+  if (s->cache_control.cache_responses_to_cookies >= 0)
+    s->txn_conf->cache_responses_to_cookies = s->cache_control.cache_responses_to_cookies;
+}
+
+inline bool
+HttpTransact::is_server_negative_cached(State* s)
+{
+  if (s->host_db_info.app.http_data.last_failure != 0 &&
+      s->host_db_info.app.http_data.last_failure + s->txn_conf->down_server_timeout > s->client_request_time) {
+    return true;
+  } else {
+    // Make sure some nasty clock skew has not happened
+    //  Use the server timeout to set an upperbound as to how far in the
+    //   future we should tolerate bogus last failure times.  This sets
+    //   the upper bound to the time that we would ever consider a server
+    //   down to 2*down_server_timeout
+    if (s->client_request_time + s->txn_conf->down_server_timeout < s->host_db_info.app.http_data.last_failure) {
+      s->host_db_info.app.http_data.last_failure = 0;
+      ink_assert(!"extreme clock skew");
+      return true;
+    }
+    return false;
+  }
+}
+
+inline static void
+update_current_info(HttpTransact::CurrentInfo* into, HttpTransact::ConnectionAttributes* from,
+                    HttpTransact::LookingUp_t who, int attempts)
+{
+  into->request_to = who;
+  into->server = from;
+  into->attempts = attempts;
+}
+
+inline static void
+update_dns_info(HttpTransact::DNSLookupInfo* dns, HttpTransact::CurrentInfo* from, int attempts,
+                Arena* /* arena ATS_UNUSED */)
+{
+  dns->looking_up = from->request_to;
+  dns->lookup_name = from->server->name;
+  dns->attempts = attempts;
+}
+
+inline static HTTPHdr *
+find_appropriate_cached_resp(HttpTransact::State* s)
+{
+  HTTPHdr *c_resp = NULL;
+
+  if (s->cache_info.object_store.valid()) {
+    c_resp = s->cache_info.object_store.response_get();
+    if (c_resp != NULL && c_resp->valid())
+      return c_resp;
+  }
+
+  ink_assert(s->cache_info.object_read != NULL);
+  return s->cache_info.object_read->response_get();
+}
+
+inline static bool
+is_negative_caching_appropriate(HttpTransact::State* s)
+{
+  if (!s->txn_conf->negative_caching_enabled || !s->hdr_info.server_response.valid())
+    return false;
+
+  switch (s->hdr_info.server_response.status_get()) {
+  case HTTP_STATUS_NO_CONTENT:
+  case HTTP_STATUS_USE_PROXY:
+  case HTTP_STATUS_BAD_REQUEST:
+  case HTTP_STATUS_FORBIDDEN:
+  case HTTP_STATUS_NOT_FOUND:
+  case HTTP_STATUS_METHOD_NOT_ALLOWED:
+  case HTTP_STATUS_REQUEST_URI_TOO_LONG:
+  case HTTP_STATUS_INTERNAL_SERVER_ERROR:
+  case HTTP_STATUS_NOT_IMPLEMENTED:
+  case HTTP_STATUS_BAD_GATEWAY:
+  case HTTP_STATUS_SERVICE_UNAVAILABLE:
+  case HTTP_STATUS_GATEWAY_TIMEOUT:
+    return true;
+  default:
+    break;
+  }
+
+  return false;
+}
+
+inline static HttpTransact::LookingUp_t
+find_server_and_update_current_info(HttpTransact::State* s)
+{
+  URL *url = s->hdr_info.client_request.url_get();
+  int host_len;
+  const char *host = s->hdr_info.client_request.host_get(&host_len);
+
+  if (ptr_len_cmp(host, host_len, local_host_ip_str, sizeof(local_host_ip_str) - 1) == 0) {
+    // Do not forward requests to local_host onto a parent.
+    // I just wanted to do this for cop heartbeats, someone else
+    // wanted it for all requests to local_host.
+    s->parent_result.r = PARENT_DIRECT;
+  } else if (url->scheme_get_wksidx() == URL_WKSIDX_HTTPS) {
+    // Do not forward HTTPS requests onto a parent.
+    s->parent_result.r = PARENT_DIRECT;
+  } else if (s->method == HTTP_WKSIDX_CONNECT && s->http_config_param->disable_ssl_parenting) {
+    s->parent_result.r = PARENT_DIRECT;
+  } else if (s->http_config_param->uncacheable_requests_bypass_parent &&
+             s->http_config_param->no_dns_forward_to_parent == 0 &&
+             !HttpTransact::is_request_cache_lookupable(s)) {
+    // request not lookupable and cacheable, so bypass parent
+    // Note that the configuration of the proxy as well as the request
+    // itself affects the result of is_request_cache_lookupable();
+    // we are assuming both child and parent have similar configuration
+    // with respect to whether a request is cacheable or not.
+    // For example, the cache_urls_that_look_dynamic variable.
+    DebugTxn("http_trans", "request not cacheable, so bypass parent");
+    s->parent_result.r = PARENT_DIRECT;
+  } else {
+    switch (s->parent_result.r) {
+    case PARENT_UNDEFINED:
+      s->parent_params->findParent(&s->request_data, &s->parent_result);
+      break;
+    case PARENT_SPECIFIED:
+      s->parent_params->nextParent(&s->request_data, &s->parent_result);
+
+      // Hack!
+      // We already have a parent that failed, if we are now told
+      //  to go the origin server, we can only obey this if we
+      //  dns'ed the origin server
+      if (s->parent_result.r == PARENT_DIRECT && s->http_config_param->no_dns_forward_to_parent != 0) {
+        ink_assert(!ats_is_ip(&s->server_info.addr));
+        s->parent_result.r = PARENT_FAIL;
+      }
+      break;
+    case PARENT_FAIL:
+      // Check to see if should bypass the parent and go direct
+      //   We can only do this if
+      //   1) the parent was not set from API
+      //   2) the config permits us
+      //   3) the config permitted us to dns the origin server
+      if (!s->parent_params->apiParentExists(&s->request_data) && s->parent_result.rec->bypass_ok() &&
+          s->http_config_param->no_dns_forward_to_parent == 0) {
+        s->parent_result.r = PARENT_DIRECT;
+      }
+      break;
+    default:
+      ink_assert(0);
+      // FALL THROUGH
+    case PARENT_DIRECT:
+      //              // if we have already decided to go direct
+      //              // dont bother calling nextParent.
+      //              // do nothing here, guy.
+      break;
+    }
+  }
+
+  switch (s->parent_result.r) {
+  case PARENT_SPECIFIED:
+    s->parent_info.name = s->arena.str_store(s->parent_result.hostname, strlen(s->parent_result.hostname));
+    s->parent_info.port = s->parent_result.port;
+    update_current_info(&s->current, &s->parent_info, HttpTransact::PARENT_PROXY, (s->current.attempts)++);
+    update_dns_info(&s->dns_info, &s->current, 0, &s->arena);
+    ink_assert(s->dns_info.looking_up == HttpTransact::PARENT_PROXY);
+    s->next_hop_scheme = URL_WKSIDX_HTTP;
+
+    return HttpTransact::PARENT_PROXY;
+  case PARENT_FAIL:
+    // No more parents - need to return an error message
+    s->current.request_to = HttpTransact::HOST_NONE;
+    return HttpTransact::HOST_NONE;
+
+  case PARENT_DIRECT:
+    /* fall through */
+  default:
+    update_current_info(&s->current, &s->server_info, HttpTransact::ORIGIN_SERVER, (s->current.attempts)++);
+    update_dns_info(&s->dns_info, &s->current, 0, &s->arena);
+    ink_assert(s->dns_info.looking_up == HttpTransact::ORIGIN_SERVER);
+    s->next_hop_scheme = s->scheme;
+    return HttpTransact::ORIGIN_SERVER;
+  }
+}
+
+inline static bool
+do_cookies_prevent_caching(int cookies_conf, HTTPHdr* request, HTTPHdr* response, HTTPHdr* cached_request = NULL)
+{
+  enum CookiesConfig
+  {
+    COOKIES_CACHE_NONE = 0,     // do not cache any responses to cookies
+    COOKIES_CACHE_ALL = 1,      // cache for any content-type (ignore cookies)
+    COOKIES_CACHE_IMAGES = 2,   // cache only for image types
+    COOKIES_CACHE_ALL_BUT_TEXT = 3,     // cache for all but text content-types
+    COOKIES_CACHE_ALL_BUT_TEXT_EXT = 4  // cache for all but text content-types except with OS response
+      // without "Set-Cookie" or with "Cache-Control: public"
+  };
+
+  const char *content_type = NULL;
+  int str_len;
+
+#ifdef DEBUG
+  ink_assert(request->type_get() == HTTP_TYPE_REQUEST);
+  ink_assert(response->type_get() == HTTP_TYPE_RESPONSE);
+  if (cached_request) {
+    ink_assert(cached_request->type_get() == HTTP_TYPE_REQUEST);
+  }
+#endif
+
+  // Can cache all regardless of cookie header - just ignore all cookie headers
+  if ((CookiesConfig) cookies_conf == COOKIES_CACHE_ALL) {
+    return false;
+  }
+
+  // It is considered that Set-Cookie headers can be safely ignored
+  // for non text content types if Cache-Control private is not set.
+  // This enables a bigger hit rate, which currently outweighs the risk of
+  // breaking origin servers that truly intend to set a cookie with other
+  // objects such as images.
+  // At this time, it is believed that only advertisers do this, and that
+  // customers won't care about it.
+
+  // If the response does not have a Set-Cookie header and
+  // the response does not have a Cookie header and
+  // the object is not cached or the request does not have a Cookie header
+  // then cookies do not prevent caching.
+  if (!response->presence(MIME_PRESENCE_SET_COOKIE) &&
+      !request->presence(MIME_PRESENCE_COOKIE) && (cached_request == NULL
+                                                   || !cached_request->presence(MIME_PRESENCE_COOKIE))) {
+    return false;
+  }
+
+  // Do not cache if cookies option is COOKIES_CACHE_NONE
+  // and a Cookie is detected
+  if ((CookiesConfig) cookies_conf == COOKIES_CACHE_NONE) {
+    return true;
+  }
+  // All other options depend on the Content-Type
+  content_type = response->value_get(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE, &str_len);
+
+  if ((CookiesConfig) cookies_conf == COOKIES_CACHE_IMAGES) {
+    if (content_type && str_len >= 5 && memcmp(content_type, "image", 5) == 0) {
+      // Images can be cached
+      return false;
+    }
+    return true;                // do not cache if  COOKIES_CACHE_IMAGES && content_type != "image"
+  }
+  // COOKIES_CACHE_ALL_BUT_TEXT || COOKIES_CACHE_ALL_BUT_TEXT_EXT
+  // Note: if the configuration is bad, we consider
+  // COOKIES_CACHE_ALL_BUT_TEXT to be the default
+
+  if (content_type && str_len >= 4 && memcmp(content_type, "text", 4) == 0) {   // content type  - "text"
+    // Text objects cannot be cached unless the option is
+    // COOKIES_CACHE_ALL_BUT_TEXT_EXT.
+    // Furthermore, if there is a Set-Cookie header, then
+    // Cache-Control must be set.
+    if ((CookiesConfig) cookies_conf == COOKIES_CACHE_ALL_BUT_TEXT_EXT &&
+        ((!response->presence(MIME_PRESENCE_SET_COOKIE)) || response->is_cache_control_set(HTTP_VALUE_PUBLIC))) {
+      return false;
+    }
+    return true;
+  }
+  return false;                 // Non text objects can be cached
+}
+
+
+inline static bool
+does_method_require_cache_copy_deletion(int method)
+{
+  return ((method != HTTP_WKSIDX_GET) &&
+          (method == HTTP_WKSIDX_DELETE || method == HTTP_WKSIDX_PURGE ||
+           method == HTTP_WKSIDX_PUT || method == HTTP_WKSIDX_POST));
+}
+
+
+inline static
+HttpTransact::StateMachineAction_t
+how_to_open_connection(HttpTransact::State* s)
+{
+  ink_assert(s->pending_work == NULL);
+
+  // Originally we returned which type of server to open
+  // Now, however, we may want to issue a cache
+  // operation first in order to lock the cache
+  // entry to prevent multiple origin server requests
+  // for the same document.
+  // The cache operation that we actually issue, of
+  // course, depends on the specified "cache_action".
+  // If there is no cache-action to be issued, just
+  // connect to the server.
+  switch (s->cache_info.action) {
+  case HttpTransact::CACHE_PREPARE_TO_DELETE:
+  case HttpTransact::CACHE_PREPARE_TO_UPDATE:
+  case HttpTransact::CACHE_PREPARE_TO_WRITE:
+    s->transact_return_point = HttpTransact::handle_cache_write_lock;
+    return HttpTransact::SM_ACTION_CACHE_ISSUE_WRITE;
+  default:
+    // This covers:
+    // CACHE_DO_UNDEFINED, CACHE_DO_NO_ACTION, CACHE_DO_DELETE,
+    // CACHE_DO_LOOKUP, CACHE_DO_REPLACE, CACHE_DO_SERVE,
+    // CACHE_DO_SERVE_AND_DELETE, CACHE_DO_SERVE_AND_UPDATE,
+    // CACHE_DO_UPDATE, CACHE_DO_WRITE, TOTAL_CACHE_ACTION_TYPES
+    break;
+  }
+
+  if (s->method == HTTP_WKSIDX_CONNECT && s->parent_result.r != PARENT_SPECIFIED) {
+    s->cdn_saved_next_action = HttpTransact::SM_ACTION_ORIGIN_SERVER_RAW_OPEN;
+  } else {
+    s->cdn_saved_next_action = HttpTransact::SM_ACTION_ORIGIN_SERVER_OPEN;
+  }
+
+  // In the following, if url_remap_mode == 2 (URL_REMAP_FOR_OS)
+  // then do remapping for requests to OS's.
+  // Whether there is CDN remapping or not, goto SM_ACTION_DNS_LOOKUP;
+  // after that, it'll goto ORIGIN_SERVER_(RAW_)OPEN as needed.
+
+  if ((url_remap_mode == HttpTransact::URL_REMAP_FOR_OS) &&
+      (s->current.request_to == HttpTransact::ORIGIN_SERVER) && !s->cdn_remap_complete) {
+    DebugTxn("cdn", "*** START CDN Remapping *** CDN mode = %d", url_remap_mode);
+
+    char *remap_redirect = NULL;
+    int host_len;
+    const char *host;
+
+    // We need to copy the client request into the server request.  Why?  BUGBUG
+    s->hdr_info.server_request.url_set(s->hdr_info.client_request.url_get());
+
+    // TODO yeah, not sure everything here is correct with redirects
+    // This probably doesn't work properly, since request_url_remap() is broken.
+    if (request_url_remap(s, &s->hdr_info.server_request, &remap_redirect)) {
+      ink_assert(!remap_redirect);      // should not redirect in this code
+      HttpTransact::initialize_state_variables_for_origin_server(s, &s->hdr_info.server_request, true);
+      DebugTxn("cdn", "Converting proxy request to server request");
+      // Check whether a Host header field is missing from a 1.0 or 1.1 request.
+      if (                      /*outgoing_version != HTTPVersion(0,9) && */
+           !s->hdr_info.server_request.presence(MIME_PRESENCE_HOST)) {
+        URL *url = s->hdr_info.server_request.url_get();
+        host = url->host_get(&host_len);
+        // Add a ':port' to the HOST header if the request is not going
+        // to the default port.
+        int port = url->port_get();
+        if (port != url_canonicalize_port(URL_TYPE_HTTP, 0)) {
+          char *buf = (char *)alloca(host_len + 15);
+          memcpy(buf, host, host_len); 
+          host_len += snprintf(buf + host_len, 15, ":%d", port);
+          s->hdr_info.server_request.value_set(MIME_FIELD_HOST, MIME_LEN_HOST, buf, host_len);
+        } else {
+          s->hdr_info.server_request.value_set(MIME_FIELD_HOST, MIME_LEN_HOST, host, host_len);
+        }
+        ats_free(remap_redirect);  // This apparently shouldn't happen...
+      }
+      // Stripping out the host name from the URL
+      if (s->current.server == &s->server_info && s->next_hop_scheme == URL_WKSIDX_HTTP) {
+        DebugTxn("cdn", "Removing host name from URL");
+        HttpTransactHeaders::remove_host_name_from_url(&s->hdr_info.server_request);
+      }
+    }                           // the URL was remapped
+    if (is_debug_tag_set("cdn")) {
+      char *d_url = s->hdr_info.server_request.url_get()->string_get(NULL);
+      if (d_url)
+        DebugTxn("cdn", "URL: %s", d_url);
+      char *d_hst = (char *) s->hdr_info.server_request.value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &host_len);
+      if (d_hst)
+        DebugTxn("cdn", "Host Hdr: %s", d_hst);
+      ats_free(d_url);
+    }
+    s->cdn_remap_complete = true;       // It doesn't matter if there was an actual remap or not
+    s->transact_return_point = HttpTransact::OSDNSLookup;
+    ink_assert(s->next_action);
+    ink_assert(s->cdn_saved_next_action);
+    return HttpTransact::SM_ACTION_DNS_LOOKUP;
+  }
+
+  if (!s->already_downgraded) { //false unless downgraded previously (possibly due to HTTP 505)
+    (&s->hdr_info.server_request)->version_set(HTTPVersion(1, 1));
+    HttpTransactHeaders::convert_request(s->current.server->http_version, &s->hdr_info.server_request);
+  }
+
+  ink_assert(s->cdn_saved_next_action == HttpTransact::SM_ACTION_ORIGIN_SERVER_OPEN ||
+                    s->cdn_saved_next_action == HttpTransact::SM_ACTION_ORIGIN_SERVER_RAW_OPEN);
+  return s->cdn_saved_next_action;
+}
+
+
+/*****************************************************************************
+ *****************************************************************************
+ ****                                                                     ****
+ ****                 HttpTransact State Machine Handlers                 ****
+ ****                                                                     ****
+ **** What follow from here on are the state machine handlers - the code  ****
+ **** which is called from HttpSM::set_next_state to specify ****
+ **** what action the state machine needs to execute next. These ftns     ****
+ **** take as input just the state and set the next_action variable.      ****
+ *****************************************************************************
+ *****************************************************************************/
+void
+HttpTransact::BadRequest(State* s)
+{
+  DebugTxn("http_trans", "[BadRequest]" "parser marked request bad");
+  bootstrap_state_variables_from_request(s, &s->hdr_info.client_request);
+  build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Invalid HTTP Request", "request#syntax_error", NULL);
+  TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+}
+
+void
+HttpTransact::HandleBlindTunnel(State* s)
+{
+  DebugTxn("http_trans", "[HttpTransact::HandleBlindTunnel]");
+
+  // We've received a request on a port which we blind forward
+  //  For logging purposes we create a fake request
+  s->hdr_info.client_request.create(HTTP_TYPE_REQUEST);
+  s->hdr_info.client_request.method_set(HTTP_METHOD_CONNECT, HTTP_LEN_CONNECT);
+  URL u;
+  s->hdr_info.client_request.url_create(&u);
+  u.scheme_set(URL_SCHEME_TUNNEL, URL_LEN_TUNNEL);
+  s->hdr_info.client_request.url_set(&u);
+
+  // We set the version to 0.9 because once we know where we are going
+  //   this blind ssl tunnel is indistinguishable from a "CONNECT 0.9"
+  //   except for the need to suppression error messages
+  HTTPVersion ver(0, 9);
+  s->hdr_info.client_request.version_set(ver);
+
+  struct in_addr dest_addr;
+  dest_addr.s_addr = s->state_machine->ua_session->get_netvc()->get_local_ip();
+
+  char *new_host = inet_ntoa(dest_addr);
+  s->hdr_info.client_request.url_get()->host_set(new_host, strlen(new_host));
+  s->hdr_info.client_request.url_get()->port_set(s->state_machine->ua_session->get_netvc()->get_local_port());
+
+  // Initialize the state vars necessary to sending error responses
+  bootstrap_state_variables_from_request(s, &s->hdr_info.client_request);
+
+  if (is_debug_tag_set("http_trans")) {
+    int host_len;
+    const char *host = s->hdr_info.client_request.url_get()->host_get(&host_len);
+    DebugTxn("http_trans", "[HandleBlindTunnel] destination set to %.*s:%d", host_len, host,
+          s->hdr_info.client_request.url_get()->port_get());
+  }
+  // Now we need to run the url remapping engine to find the where
+  //   this request really goes since we were sent was bound for
+  //   machine we are running on
+
+  // Do request_url_remap only if url_remap_mode != URL_REMAP_FOR_OS.
+  bool url_remap_success = false;
+  char *remap_redirect = NULL;
+
+  if (s->transparent_passthrough) {
+    url_remap_success = true;
+  } else if (url_remap_mode == URL_REMAP_DEFAULT || url_remap_mode == URL_REMAP_ALL) {
+    // TODO: take a look at this
+    // This probably doesn't work properly, since request_url_remap() is broken.  
+    url_remap_success = request_url_remap(s, &s->hdr_info.client_request, &remap_redirect);
+  }
+  // We must have mapping or we will self loop since the this
+  //    request was addressed to us to begin with.  Remap directs
+  //    are something used in the normal reverse proxy and if we
+  //    get them here they indicate a very bad misconfiguration!
+  if (url_remap_success == false || remap_redirect != NULL) {
+    // The error message we send back will be suppressed so
+    //  the only important thing in selecting the error is what
+    //  status code it gets logged as
+    build_error_response(s, HTTP_STATUS_INTERNAL_SERVER_ERROR, "Port Forwarding Error", "default", NULL);
+
+    int host_len;
+    const char *host = s->hdr_info.client_request.url_get()->host_get(&host_len);
+
+    Log::error("Forwarded port error: request with destination %.*s:%d "
+               "does not have a mapping", host_len, host, s->hdr_info.client_request.url_get()->port_get());
+
+    TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+  }
+  // Set the mode to tunnel so that we don't lookup the cache
+  s->current.mode = TUNNELLING_PROXY;
+
+  // Let the request work it's way through the code and
+  //  we grab it again after the raw connection has been opened
+  HandleRequest(s);
+}
+
+bool
+HttpTransact::perform_accept_encoding_filtering(State* s)
+{
+  HttpUserAgent_RegxEntry *uae;
+  HTTPHdr *client_request;
+  MIMEField *accept_field;
+  MIMEField *usragent_field;
+  char tmp_ua_buf[1024], *c;
+  char const *u_agent = NULL;
+  int u_agent_len = 0;
+  bool retcode = false;
+  bool ua_match = false;
+
+  client_request = &s->hdr_info.client_request;
+
+  // Make sense to check Accept-Encoding if UserAgent is present (and matches)
+  if ((usragent_field = client_request->field_find(MIME_FIELD_USER_AGENT, MIME_LEN_USER_AGENT)) != 0 &&
+      (u_agent = usragent_field->value_get(&u_agent_len)) != 0 && u_agent_len > 0) {
+    if (u_agent_len >= (int) sizeof(tmp_ua_buf))
+      u_agent_len = (int) (sizeof(tmp_ua_buf) - 1);
+    memcpy(tmp_ua_buf, u_agent, u_agent_len);
+    tmp_ua_buf[u_agent_len] = '\0';
+
+    // TODO: Do we really want to do these hardcoded checks still?
+    // Check hardcoded case MSIE>6 & Mozilla>4
+    if ((c = strstr(tmp_ua_buf, "MSIE")) != NULL) {
+      if (c[5] >= '7' && c[5] <= '9')
+        return false;           // Don't change anything for IE > 6
+      ua_match = true;
+    } else if (!strncasecmp(tmp_ua_buf, "mozilla", 7)) {
+      if (tmp_ua_buf[8] >= '5' && tmp_ua_buf[8] <= '9')
+        return false;           // Don't change anything for Mozilla > 4
+      ua_match = true;
+    }
+
+    // Check custom filters
+    if (!ua_match && HttpConfig::user_agent_list) {
+      for (uae = HttpConfig::user_agent_list; uae && !ua_match; uae = uae->next) {
+        switch (uae->stype) {
+        case HttpUserAgent_RegxEntry::STRTYPE_SUBSTR_CASE:     /* .substring, .string */
+          if (u_agent_len >= uae->user_agent_str_size &&
+              !memcmp(tmp_ua_buf, uae->user_agent_str, uae->user_agent_str_size))
+            ua_match = true;
+          break;
+        case HttpUserAgent_RegxEntry::STRTYPE_SUBSTR_NCASE:    /* .substring_ncase, .string_ncase */
+          if (u_agent_len >= uae->user_agent_str_size &&
+              !strncasecmp(uae->user_agent_str, tmp_ua_buf, uae->user_agent_str_size))
+            ua_match = true;
+          break;
+        case HttpUserAgent_RegxEntry::STRTYPE_REGEXP:  /* .regexp POSIX regular expression */
+          if (uae->regx_valid && !pcre_exec(uae->regx, NULL, tmp_ua_buf, u_agent_len, 0, 0, NULL, 0))
+            ua_match = true;
+          break;
+        default:               /* unknown type in the structure - bad initialization - impossible bug! */
+          /* I can use ink_error() here since we should shutdown TS immediately */
+          ink_error
+            ("[HttpTransact::perform_accept_encoding_filtering] - get unknown User-Agent string type - bad initialization");
+        };
+      }
+    }
+
+    /* If we have correct User-Agent header ....
+       Just set Accept-Encoding: identity or .... do nothing because
+       "If no Accept-Encoding field is present in a request, the server MAY assume that the client
+       will accept any content coding. In this case, if "identity" is one of the available content-codings,
+       then the server SHOULD use the "identity" content-coding, unless it has additional information that
+       a different content-coding is meaningful to the client." */
+    if (ua_match) {
+      DebugTxn("http_trans", "HttpTransact::ModifyRequest, insert identity Accept-Encoding");
+      accept_field = client_request->field_find(MIME_FIELD_ACCEPT_ENCODING, MIME_LEN_ACCEPT_ENCODING);
+      if (!accept_field) {
+        accept_field = client_request->field_create(MIME_FIELD_ACCEPT_ENCODING, MIME_LEN_ACCEPT_ENCODING);
+        if (accept_field)
+          client_request->field_attach(accept_field);
+      }
+      if (accept_field) {
+        client_request->field_value_set(accept_field, HTTP_VALUE_IDENTITY, HTTP_LEN_IDENTITY);
+      }
+    }
+    retcode = true;
+  }                             // end of 'user-agent'
+  return retcode;
+}
+
+void
+HttpTransact::StartRemapRequest(State* s)
+{
+  
+  if (s->api_skip_all_remapping) {
+    Debug ("http_trans", "API request to skip remapping");
+
+    if (s->is_upgrade_request && s->post_remap_upgrade_return_point) {
+      TRANSACT_RETURN(SM_ACTION_POST_REMAP_SKIP, s->post_remap_upgrade_return_point);
+    }
+
+    TRANSACT_RETURN(SM_ACTION_POST_REMAP_SKIP, HttpTransact::HandleRequest);
+  }
+  
+  DebugTxn("http_trans", "START HttpTransact::StartRemapRequest");
+
+  /**
+	 * Check for URL remappings before checking request
+	 * validity or initializing state variables since
+	 * the remappings can insert or change the destination
+	 * host, port and protocol.
+	**/
+
+  HTTPHdr *incoming_request = &s->hdr_info.client_request;
+  URL *url = incoming_request->url_get();
+  int host_len, path_len;
+  const char *host = url->host_get(&host_len);
+  const char *path = url->path_get(&path_len);
+  const int port = url->port_get();
+
+  const char syntxt[] = "synthetic.txt";
+
+  s->cop_test_page = (ptr_len_cmp(host, host_len, local_host_ip_str, sizeof(local_host_ip_str) - 1) == 0) &&
+    (ptr_len_cmp(path, path_len, syntxt, sizeof(syntxt) - 1) == 0) &&
+    port == s->http_config_param->autoconf_port &&
+    s->method == HTTP_WKSIDX_GET &&
+    s->orig_scheme == URL_WKSIDX_HTTP &&
+    (!s->http_config_param->autoconf_localhost_only || ats_ip4_addr_cast(&s->client_info.addr.sa) == htonl(INADDR_LOOPBACK));
+
+  //////////////////////////////////////////////////////////////////
+  // FIX: this logic seems awfully convoluted and hard to follow; //
+  //      seems like we could come up with a more elegant and     //
+  //      comprehensible design that generalized things           //
+  //////////////////////////////////////////////////////////////////
+
+  /////////////////////////////////////////////////////////////////
+  // run the remap url-rewriting engine:                         //
+  //                                                             //
+  // * the variable <url_remap_success> is set true if           //
+  //   the url was rewritten                                     //
+  //                                                             //
+  // * the variable <remap_redirect> is set to non-NULL if there //
+  //   is a URL provided that the proxy is supposed to redirect  //
+  //   requesters of a particular URL to.                        //
+  /////////////////////////////////////////////////////////////////
+
+  if (is_debug_tag_set("http_chdr_describe") || is_debug_tag_set("http_trans")) {
+    DebugTxn("http_trans", "Before Remapping:");
+    obj_describe(s->hdr_info.client_request.m_http, 1);
+  }
+
+  if (url_remap_mode == URL_REMAP_DEFAULT || url_remap_mode == URL_REMAP_ALL) {
+    if (s->http_config_param->referer_filter_enabled) {
+      s->filter_mask = URL_REMAP_FILTER_REFERER;
+      if (s->http_config_param->referer_format_redirect)
+        s->filter_mask |= URL_REMAP_FILTER_REDIRECT_FMT;
+    }
+  }
+
+  DebugTxn("http_trans", "END HttpTransact::StartRemapRequest");
+  TRANSACT_RETURN(SM_ACTION_API_PRE_REMAP, HttpTransact::PerformRemap);
+}
+
+void HttpTransact::PerformRemap(State *s)
+{
+  DebugTxn("http_trans","Inside PerformRemap");
+  TRANSACT_RETURN(SM_ACTION_REMAP_REQUEST, HttpTransact::EndRemapRequest);
+}
+
+void
+HttpTransact::EndRemapRequest(State* s)
+{
+  DebugTxn("http_trans", "START HttpTransact::EndRemapRequest");
+
+  HTTPHdr *incoming_request = &s->hdr_info.client_request;
+  int method = incoming_request->method_get_wksidx();
+  int host_len;
+  const char *host = incoming_request->host_get(&host_len);
+  DebugTxn("http_trans","EndRemapRequest host is %.*s", host_len,host);
+  
+  ////////////////////////////////////////////////////////////////
+  // if we got back a URL to redirect to, vector the user there //
+  ////////////////////////////////////////////////////////////////
+  if (s->remap_redirect != NULL) {
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+    if (s->http_return_code == HTTP_STATUS_MOVED_PERMANENTLY) {
+      build_error_response(s, HTTP_STATUS_MOVED_PERMANENTLY, "Redirect", "redirect#moved_permanently", NULL);
+    } else {
+      build_error_response(s, HTTP_STATUS_MOVED_TEMPORARILY, "Redirect", "redirect#moved_temporarily", NULL);
+    }
+    ats_free(s->remap_redirect);
+    s->reverse_proxy = false;
+    goto done;
+  }
+  /////////////////////////////////////////////////////
+  // Quick HTTP filtering (primary key: http method) //
+  /////////////////////////////////////////////////////
+  process_quick_http_filter(s, method);
+  /////////////////////////////////////////////////////////////////////////
+  // We must close this connection if client_connection_enabled == false //
+  /////////////////////////////////////////////////////////////////////////
+  if (!s->client_connection_enabled) {
+    build_error_response(s, HTTP_STATUS_FORBIDDEN, "Access Denied", "access#denied", NULL);
+    s->reverse_proxy = false;
+    goto done;
+  }
+  /////////////////////////////////////////////////////////////////
+  // Check if remap plugin set HTTP return code and return body  //
+  /////////////////////////////////////////////////////////////////
+  if (s->http_return_code != HTTP_STATUS_NONE) {
+    build_error_response(s, s->http_return_code, NULL, NULL,
+                         s->internal_msg_buffer_size ? s->internal_msg_buffer : NULL);
+    s->reverse_proxy = false;
+    goto done;
+  }
+
+  ///////////////////////////////////////////////////////////////
+  // if no mapping was found, handle the cases where:          //
+  //                                                           //
+  // (1) reverse proxy is on, and no URL host (server request) //
+  // (2) no mappings are found, but mappings strictly required //
+  ///////////////////////////////////////////////////////////////
+
+  if (!s->url_remap_success) {
+    /**
+     * It's better to test redirect rules just after url_remap failed
+     * Or those successfully remapped rules might be redirected
+     **/
+    if (handleIfRedirect(s)) {
+      DebugTxn("http_trans", "END HttpTransact::RemapRequest");
+      TRANSACT_RETURN(SM_ACTION_INTERNAL_CACHE_NOOP, NULL);
+    }
+
+    /////////////////////////////////////////////////////////
+    // check for: (1) reverse proxy is on, and no URL host //
+    /////////////////////////////////////////////////////////
+    if (s->http_config_param->reverse_proxy_enabled
+        && !s->client_info.is_transparent
+        && !incoming_request->is_target_in_url()) {
+      /////////////////////////////////////////////////////////
+      // the url mapping failed, reverse proxy was enabled,
+      // and the request contains no host:
+      //
+      // * if there is an explanatory redirect, send there.
+      // * if there was no host, send "no host" error.
+      // * if there was a host, say "not found".
+      /////////////////////////////////////////////////////////
+
+      char *redirect_url = s->http_config_param->reverse_proxy_no_host_redirect;
+      int redirect_url_len = s->http_config_param->reverse_proxy_no_host_redirect_len;
+
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      if (redirect_url) {       /* there is a redirect url */
+        build_error_response(s, HTTP_STATUS_MOVED_TEMPORARILY, "Redirect For Explanation", "request#no_host", NULL);
+        s->hdr_info.client_response.value_set(MIME_FIELD_LOCATION, MIME_LEN_LOCATION, redirect_url, redirect_url_len);
+      // socket when there is no host. Need to handle DNS failure elsewhere.
+      } else if (host == NULL) {    /* no host */
+        build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Host Header Required", "request#no_host", NULL);
+      } else {
+        build_error_response(s, HTTP_STATUS_NOT_FOUND, "Not Found on Accelerator", "urlrouting#no_mapping", NULL);
+      }
+      s->reverse_proxy = false;
+      goto done;
+    } else if (s->http_config_param->url_remap_required && !s->cop_test_page) {
+      ///////////////////////////////////////////////////////
+      // the url mapping failed, but mappings are strictly //
+      // required (except for synthetic cop accesses), so  //
+      // return an error message.                          //
+      ///////////////////////////////////////////////////////
+
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      build_error_response(s, HTTP_STATUS_NOT_FOUND, "Not Found", "urlrouting#no_mapping", NULL);
+
+      s->reverse_proxy = false;
+      goto done;
+    }
+  } else {
+    if (s->http_config_param->reverse_proxy_enabled) {
+      s->req_flavor = REQ_FLAVOR_REVPROXY;
+    }
+  }
+  s->reverse_proxy = true;
+  s->server_info.is_transparent = s->state_machine->ua_session ? s->state_machine->ua_session->f_outbound_transparent : false;
+
+done:
+  if (is_debug_tag_set("http_chdr_describe") || is_debug_tag_set("http_trans") || is_debug_tag_set("url_rewrite")) {
+    DebugTxn("http_trans", "After Remapping:");
+    obj_describe(s->hdr_info.client_request.m_http, 1);
+  }
+
+  /*
+    if s->reverse_proxy == false, we can assume remapping failed in some way
+      -however-
+    If an API setup a tunnel to fake the origin or proxy's response we will 
+    continue to handle the request (as this was likely the plugin author's intent)
+    
+    otherwise, 502/404 the request right now. /eric
+  */
+  if (!s->reverse_proxy && s->state_machine->plugin_tunnel_type == HTTP_NO_PLUGIN_TUNNEL) {
+    DebugTxn("http_trans", "END HttpTransact::EndRemapRequest");
+    HTTP_INCREMENT_TRANS_STAT(http_invalid_client_requests_stat);
+    TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+  } else {
+    s->hdr_info.client_response.clear(); //anything previously set is invalid from this point forward
+    DebugTxn("http_trans", "END HttpTransact::EndRemapRequest");
+
+    if (s->is_upgrade_request && s->post_remap_upgrade_return_point) {
+      TRANSACT_RETURN(SM_ACTION_API_POST_REMAP, s->post_remap_upgrade_return_point);
+    }
+
+    TRANSACT_RETURN(SM_ACTION_API_POST_REMAP, HttpTransact::HandleRequest);
+  }
+
+  ink_assert(!"not reached");
+}
+
+bool HttpTransact::handle_upgrade_request(State *s) {
+  // Quickest way to determine that this is defintely not an upgrade.
+  /* RFC 6455 The method of the request MUST be GET, and the HTTP version MUST
+        be at least 1.1. */
+  if (!s->hdr_info.client_request.presence(MIME_PRESENCE_UPGRADE) ||
+      !s->hdr_info.client_request.presence(MIME_PRESENCE_CONNECTION) ||
+      s->method != HTTP_WKSIDX_GET ||
+      s->hdr_info.client_request.version_get() < HTTPVersion(1, 1)) {
+    return false;
+  }
+
+  MIMEField *upgrade_hdr = s->hdr_info.client_request.field_find(MIME_FIELD_UPGRADE, MIME_LEN_UPGRADE);
+  MIMEField *connection_hdr = s->hdr_info.client_request.field_find(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+
+  StrList connection_hdr_vals;
+  const char *upgrade_hdr_val = NULL;
+  int upgrade_hdr_val_len = 0;
+
+  if ( !upgrade_hdr ||
+       !connection_hdr ||
+       connection_hdr->value_get_comma_list(&connection_hdr_vals) == 0 ||
+       (upgrade_hdr_val = upgrade_hdr->value_get(&upgrade_hdr_val_len)) == NULL) {
+      DebugTxn("http_trans_upgrade", "Transaction wasn't a valid upgrade request, proceeding as a normal HTTP request.");
+      return false;
+  }
+
+  /*
+   * In order for this request to be treated as a normal upgrade request we must have a Connection: Upgrade header
+   * and a Upgrade: header, with a non-empty value, otherwise we just assume it's not an Upgrade Request, after
+   * we've verified that, we will try to match this upgrade to a known upgrade type such as Websockets.
+   */
+  bool connection_contains_upgrade = false;
+  // Next, let's validate that the Connection header contains an Upgrade key
+  for(int i = 0; i < connection_hdr_vals.count; ++i) {
+    Str *val = connection_hdr_vals.get_idx(i);
+    if (ptr_len_casecmp(val->str, val->len, MIME_FIELD_UPGRADE, MIME_LEN_UPGRADE) == 0) {
+      connection_contains_upgrade = true;
+      break;
+    }
+  }
+
+  if (!connection_contains_upgrade) {
+    DebugTxn("http_trans_upgrade", "Transaction wasn't a valid upgrade request, proceeding as a normal HTTP request, missing Connection upgrade header.");
+    return false;
+  }
+
+
+  // Mark this request as an upgrade request.
+  s->is_upgrade_request = true;
+
+  /*
+     RFC 6455
+     The request MUST contain an |Upgrade| header field whose value
+        MUST include the "websocket" keyword.
+     The request MUST contain a |Connection| header field whose value
+        MUST include the "Upgrade" token. // Checked Above
+     The request MUST include a header field with the name
+        |Sec-WebSocket-Key|.
+     The request MUST include a header field with the name
+        |Sec-WebSocket-Version|.  The value of this header field MUST be
+        13.
+   */
+  if (hdrtoken_tokenize(upgrade_hdr_val, upgrade_hdr_val_len, &s->upgrade_token_wks) >= 0) {
+    if (s->upgrade_token_wks == MIME_VALUE_WEBSOCKET) {
+      MIMEField *sec_websocket_key = s->hdr_info.client_request.field_find(MIME_FIELD_SEC_WEBSOCKET_KEY, MIME_LEN_SEC_WEBSOCKET_KEY);
+      MIMEField *sec_websocket_ver = s->hdr_info.client_request.field_find(MIME_FIELD_SEC_WEBSOCKET_VERSION, MIME_LEN_SEC_WEBSOCKET_VERSION);
+
+      if (sec_websocket_key &&
+          sec_websocket_ver &&
+          sec_websocket_ver->value_get_int() == 13) {
+        DebugTxn("http_trans_upgrade", "Transaction wants upgrade to websockets");
+        handle_websocket_upgrade_pre_remap(s);
+        return true;
+      } else {
+        DebugTxn("http_trans_upgrade", "Unable to upgrade connection to websockets, invalid headers (RFC 6455).");
+      }
+    }
+  } else {
+    DebugTxn("http_trans_upgrade", "Transaction requested upgrade for unknown protocol: %s", upgrade_hdr_val);
+  }
+
+  build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Invalid Upgrade Request", "request#syntax_error", NULL);
+
+  // we want our modify_request method to just return while we fail out from here.
+  // this seems like the preferred option because the user wanted to do an upgrade but sent a bad protocol.
+  TRANSACT_RETURN_VAL(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL, true);
+}
+
+void
+HttpTransact::handle_websocket_upgrade_pre_remap(State *s) {
+  DebugTxn("http_trans_websocket_upgrade_pre_remap", "Prepping transaction before remap.");
+
+  /*
+   * We will use this opportunity to set everything up so that during the remap stage we can deal with
+   * ws:// and wss:// remap rules, and then we will take over again post remap.
+   */
+  s->is_websocket = true;
+  s->post_remap_upgrade_return_point = HttpTransact::handle_websocket_upgrade_post_remap;
+
+  /* let's modify the url scheme to be wss or ws, so remapping will happen as expected */
+  URL *url = s->hdr_info.client_request.url_get();
+  if (url->scheme_get_wksidx() == URL_WKSIDX_HTTP) {
+    DebugTxn("http_trans_websocket_upgrade_pre_remap", "Changing scheme to WS for remapping.");
+    url->scheme_set(URL_SCHEME_WS, URL_LEN_WS);
+  } else if (url->scheme_get_wksidx() == URL_WKSIDX_HTTPS) {
+    DebugTxn("http_trans_websocket_upgrade_pre_remap", "Changing scheme to WSS for remapping.");
+    url->scheme_set(URL_SCHEME_WSS, URL_LEN_WSS);
+  } else {
+    DebugTxn("http_trans_websocket_upgrade_pre_remap", "Invalid scheme for websocket upgrade");
+    build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Invalid Upgrade Request", "request#syntax_error", NULL);
+    TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+  }
+
+  TRANSACT_RETURN(SM_ACTION_API_READ_REQUEST_HDR, HttpTransact::StartRemapRequest);
+}
+
+void
+HttpTransact::handle_websocket_upgrade_post_remap(State *s) {
+  DebugTxn("http_trans_websocket_upgrade_post_remap", "Remap is complete, start websocket upgrade");
+
+  TRANSACT_RETURN(SM_ACTION_API_POST_REMAP, HttpTransact::handle_websocket_connection);
+}
+
+void
+HttpTransact::handle_websocket_connection(State *s) {
+  DebugTxn("http_trans_websocket", "START handle_websocket_connection");
+
+  HandleRequest(s);
+}
+
+
+void
+HttpTransact::ModifyRequest(State* s)
+{
+  int scheme, hostname_len;
+  const char *hostname;
+  MIMEField *max_forwards_f;
+  int max_forwards = -1;
+  HTTPHdr* request = &s->hdr_info.client_request;
+
+  DebugTxn("http_trans", "START HttpTransact::ModifyRequest");
+
+  // Intialize the state vars necessary to sending error responses
+  bootstrap_state_variables_from_request(s, request);
+
+  ////////////////////////////////////////////////
+  // If there is no scheme default to http      //
+  ////////////////////////////////////////////////
+  URL *url = request->url_get();
+
+  s->orig_scheme = (scheme = url->scheme_get_wksidx());
+
+  s->method = s->hdr_info.client_request.method_get_wksidx();
+  if (scheme < 0 && s->method != HTTP_WKSIDX_CONNECT) {
+    if (s->client_info.port_attribute == HttpProxyPort::TRANSPORT_SSL) {
+      url->scheme_set(URL_SCHEME_HTTPS, URL_LEN_HTTPS);
+      s->orig_scheme = URL_WKSIDX_HTTPS;
+    } else {
+      url->scheme_set(URL_SCHEME_HTTP, URL_LEN_HTTP);
+      s->orig_scheme = URL_WKSIDX_HTTP;
+    }
+  }
+
+  if (s->method == HTTP_WKSIDX_CONNECT && !request->is_port_in_header())
+    url->port_set(80);
+
+  // Ugly - this must come after the call to url->scheme_set or
+  // it can't get the scheme properly and the wrong data is cached.
+  // The solution should be to move the scheme detecting logic in to
+  // the header class, rather than doing it in a random bit of
+  // external code.
+  hostname = request->host_get(&hostname_len);
+  if (!request->is_target_in_url())
+    s->hdr_info.client_req_is_server_style = true;
+
+  // If the incoming request is proxy-style make sure the Host: header
+  // matches the incoming request URL. The exception is if we have
+  // Max-Fowards set to 0 in the request (ToDo: why??)
+  max_forwards_f = s->hdr_info.client_request.field_find(MIME_FIELD_MAX_FORWARDS, MIME_LEN_MAX_FORWARDS);
+  if (max_forwards_f) {
+    max_forwards = max_forwards_f->value_get_int();
+  }
+
+  if ((max_forwards != 0) && !s->hdr_info.client_req_is_server_style && s->method != HTTP_WKSIDX_CONNECT) {
+    MIMEField *host_field = s->hdr_info.client_request.field_find(MIME_FIELD_HOST, MIME_LEN_HOST);
+    int host_val_len = hostname_len;
+    const char **host_val = &hostname;
+    int req_host_val_len;
+    const char *req_host_val;
+    int port = url->port_get_raw();
+    char *buf = NULL;
+
+    // Form the host:port string if not a default port (e.g. 80)
+    if (port > 0) {
+      buf = (char *)alloca(host_val_len + 15);
+      memcpy(buf, hostname, host_val_len);
+      host_val_len += snprintf(buf + host_val_len, 15, ":%d", port);
+      host_val = (const char**)(&buf);
+    }
+
+    if (!host_field ||
+        ((req_host_val = host_field->value_get(&req_host_val_len)) == NULL) ||
+        (host_val_len != req_host_val_len) ||
+        (strncasecmp(*host_val, req_host_val, host_val_len) != 0)) {
+
+      if (!host_field) { // Assure we have a Host field, before setting it
+        host_field = s->hdr_info.client_request.field_create(MIME_FIELD_HOST, MIME_LEN_HOST);
+        s->hdr_info.client_request.field_attach(host_field);
+      }
+      s->hdr_info.client_request.field_value_set(host_field, *host_val, host_val_len);
+      request->mark_target_dirty();
+    }
+  }
+
+  if (s->txn_conf->normalize_ae_gzip) {
+    // if enabled, force Accept-Encoding header to gzip or no header
+    MIMEField *ae_field = s->hdr_info.client_request.field_find(MIME_FIELD_ACCEPT_ENCODING, MIME_LEN_ACCEPT_ENCODING);
+
+    if (ae_field) {
+      if (HttpTransactCache::match_gzip(ae_field) == GZIP) {
+        s->hdr_info.client_request.field_value_set(ae_field, "gzip", 4);
+        DebugTxn("http_trans", "[ModifyRequest] normalized Accept-Encoding to gzip");
+      } else {
+        s->hdr_info.client_request.field_delete(ae_field);
+        DebugTxn("http_trans", "[ModifyRequest] removed non-gzip Accept-Encoding");
+      }
+    }
+  }
+
+  /////////////////////////////////////////////////////////
+  // Modify Accept-Encoding for several specific User-Agent
+  /////////////////////////////////////////////////////////
+  if (s->txn_conf->accept_encoding_filter_enabled) {
+    perform_accept_encoding_filtering(s);
+  }
+
+  DebugTxn("http_trans", "END HttpTransact::ModifyRequest");
+
+  DebugTxn("http_trans", "Checking if transaction wants to upgrade");
+  if(handle_upgrade_request(s)) {
+    // everything should be handled by the upgrade handler.
+    DebugTxn("http_trans", "Transaction will be upgraded by the appropriate upgrade handler.");
+    return;
+  }
+
+  TRANSACT_RETURN(SM_ACTION_API_READ_REQUEST_HDR, HttpTransact::StartRemapRequest);
+}
+
+// This function is supposed to figure out if this transaction is
+// susceptible to a redirection as specified by remap.config
+bool
+HttpTransact::handleIfRedirect(State *s)
+{
+  int answer;
+  URL redirect_url;
+
+  answer = request_url_remap_redirect(&s->hdr_info.client_request, &redirect_url);
+  if ((answer == PERMANENT_REDIRECT) || (answer == TEMPORARY_REDIRECT)) {
+    int remap_redirect_len;
+
+    s->remap_redirect = redirect_url.string_get(&s->arena, &remap_redirect_len);
+    redirect_url.destroy();
+    if (answer == TEMPORARY_REDIRECT) {
+      if ((s->client_info).http_version.m_version == HTTP_VERSION(1, 1)) {
+        build_error_response(s, HTTP_STATUS_TEMPORARY_REDIRECT, "Redirect", "redirect#moved_temporarily", NULL);
+      } else {
+        build_error_response(s, HTTP_STATUS_MOVED_TEMPORARILY, "Redirect", "redirect#moved_temporarily", NULL);
+      }
+    } else {
+      build_error_response(s, HTTP_STATUS_MOVED_PERMANENTLY, "Redirect", "redirect#moved_permanently", NULL);
+    }
+    s->arena.str_free(s->remap_redirect);
+    s->remap_redirect = NULL;
+    return true;
+  }
+
+  return false;
+}
+
+void
+HttpTransact::HandleRequest(State* s)
+{
+  DebugTxn("http_trans", "START HttpTransact::HandleRequest");
+
+  ink_assert(!s->hdr_info.server_request.valid());
+
+  HTTP_INCREMENT_TRANS_STAT(http_incoming_requests_stat);
+
+  if (s->client_info.port_attribute == HttpProxyPort::TRANSPORT_SSL) {
+    HTTP_INCREMENT_TRANS_STAT(https_incoming_requests_stat);
+  }
+
+  if (s->api_release_server_session == true) {
+    s->api_release_server_session = false;
+  }
+  ///////////////////////////////////////////////
+  // if request is bad, return error response  //
+  ///////////////////////////////////////////////
+
+  if (!(is_request_valid(s, &s->hdr_info.client_request))) {
+    HTTP_INCREMENT_TRANS_STAT(http_invalid_client_requests_stat);
+    DebugTxn("http_seq", "[HttpTransact::HandleRequest] request invalid.");
+    s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+    //  s->next_action = HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+    return;
+  }
+  DebugTxn("http_seq", "[HttpTransact::HandleRequest] request valid.");
+
+  if (is_debug_tag_set("http_chdr_describe")) {
+    obj_describe(s->hdr_info.client_request.m_http, 1);
+  }
+
+  // at this point we are guaranteed that the request is good and acceptable.
+  // initialize some state variables from the request (client version,
+  // client keep-alive, cache action, etc.
+  initialize_state_variables_from_request(s, &s->hdr_info.client_request);
+
+  // Cache lookup or not will be decided later at DecideCacheLookup().
+  // Before it's decided to do a cache lookup,
+  // assume no cache lookup and using proxy (not tunneling)
+  s->cache_info.action = CACHE_DO_NO_ACTION;
+  s->current.mode = GENERIC_PROXY;
+
+  // initialize the cache_control structure read from cache.config
+  update_cache_control_information_from_config(s);
+
+  // We still need to decide whether or not to do a cache lookup since
+  // the scheduled update code depends on this info.
+  if (is_request_cache_lookupable(s))
+    s->cache_info.action = CACHE_DO_LOOKUP;
+
+  // If the hostname is "$internal$" then this is a request for
+  // internal proxy information.
+  if (handle_internal_request(s, &s->hdr_info.client_request)) {
+    TRANSACT_RETURN(SM_ACTION_INTERNAL_REQUEST, NULL);
+  }
+
+  // this needs to be called after initializing state variables from request
+  // it adds the client-ip to the incoming client request.
+
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", &s->hdr_info.client_request, s->state_machine_id, "Incoming Request");
+
+  if (s->state_machine->plugin_tunnel_type == HTTP_PLUGIN_AS_INTERCEPT) {
+    setup_plugin_request_intercept(s);
+    return;
+  }
+
+  // if ip in url or cop test page, not do srv lookup.
+  if (s->srv_lookup) {
+    if (s->cop_test_page)
+      s->srv_lookup = false;
+    else {
+      IpEndpoint addr;
+      ats_ip_pton(s->server_info.name, &addr);
+      s->srv_lookup = !ats_is_ip(&addr);
+    }
+  }
+
+  // if the request is a trace or options request, decrement the
+  // max-forwards value. if the incoming max-forwards value was 0,
+  // then we have to return a response to the client with the
+  // appropriate action for trace/option. in this case this routine
+  // is responsible for building the response.
+  if (handle_trace_and_options_requests(s, &s->hdr_info.client_request)) {
+    TRANSACT_RETURN(SM_ACTION_INTERNAL_CACHE_NOOP, NULL);
+  }
+
+  if (s->http_config_param->no_dns_forward_to_parent
+    && s->scheme != URL_WKSIDX_HTTPS
+    && strcmp(s->server_info.name, "127.0.0.1") != 0
+  ) {
+    // for HTTPS requests, we must go directly to the
+    // origin server. Ignore the no_dns_just_forward_to_parent setting.
+    // we need to see if the hostname is an
+    //   ip address since the parent selection code result
+    //   could change as a result of this ip address    
+    IpEndpoint addr;
+    ats_ip_pton(s->server_info.name, &addr);
+    if (ats_is_ip(&addr)) {
+      ats_ip_copy(&s->request_data.dest_ip, &addr);
+    }
+
+    if (s->parent_params->parentExists(&s->request_data)) {
+      // If the proxy is behind and firewall and there is no
+      //  DNS service available, we just want to forward the request
+      //  the parent proxy.  In this case, we never find out the
+      //  origin server's ip.  So just skip past OSDNS
+      ats_ip_invalidate(&s->server_info.addr);
+      StartAccessControl(s);
+      return;
+    } else if (s->http_config_param->no_origin_server_dns) {
+      build_error_response(s, HTTP_STATUS_BAD_GATEWAY, "Next Hop Connection Failed", "connect#failed_connect", NULL);
+
+      TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+    }
+  }
+
+  // Added to skip the dns if the document is in the cache.
+  // DNS is requested before cache lookup only if there are rules in cache.config , parent.config or
+  // if the newly added varible doc_in_cache_skip_dns is not enabled
+  if (s->dns_info.lookup_name[0] <= '9' &&
+      s->dns_info.lookup_name[0] >= '0' &&
+      (!s->state_machine->enable_redirection || !s->redirect_info.redirect_in_process) &&
+      s->parent_params->ParentTable->hostMatch) {
+    s->force_dns = 1;
+  }
+  //YTS Team, yamsat Plugin
+  //Doing a Cache Lookup in case of a Redirection to ensure that
+  //the newly requested object is not in the CACHE
+  if (s->txn_conf->cache_http && s->redirect_info.redirect_in_process && s->state_machine->enable_redirection) {
+    TRANSACT_RETURN(SM_ACTION_CACHE_LOOKUP, NULL);
+  }
+
+
+  if (s->force_dns) {
+    TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);   // After handling the request, DNS is done.
+  } else {
+    // After the requested is properly handled No need of requesting the DNS directly check the ACLs
+    // if the request is authorized
+    StartAccessControl(s);
+  }
+}
+
+void
+HttpTransact::setup_plugin_request_intercept(State* s)
+{
+  ink_assert(s->state_machine->plugin_tunnel != NULL);
+
+  // Plugin is intercepting the request which means
+  //  that we don't do dns, cache read or cache write
+  //
+  // We just want to write the request straight to the plugin
+  if (s->cache_info.action != HttpTransact::CACHE_DO_NO_ACTION) {
+    s->cache_info.action = HttpTransact::CACHE_DO_NO_ACTION;
+    s->current.mode = TUNNELLING_PROXY;
+    HTTP_INCREMENT_TRANS_STAT(http_tunnels_stat);
+  }
+  // Regardless of the protocol we're gatewaying to
+  //   we see the scheme as http
+  s->scheme = s->next_hop_scheme = URL_WKSIDX_HTTP;
+
+  // Set up a "fake" server server entry
+  update_current_info(&s->current, &s->server_info, HttpTransact::ORIGIN_SERVER, 0);
+
+  // Also "fake" the info we'd normally get from
+  //   hostDB
+  s->server_info.http_version.set(1, 0);
+  s->server_info.keep_alive = HTTP_NO_KEEPALIVE;
+  s->host_db_info.app.http_data.http_version = HostDBApplicationInfo::HTTP_VERSION_10;
+  s->host_db_info.app.http_data.pipeline_max = 1;
+
+  // Build the request to the server
+  build_request(s, &s->hdr_info.client_request, &s->hdr_info.server_request, s->client_info.http_version);
+
+  // We don't do keep alive over these impersonated
+  //  NetVCs so nuke the connection header
+  s->hdr_info.server_request.field_delete(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+
+  TRANSACT_RETURN(SM_ACTION_ORIGIN_SERVER_OPEN, NULL);
+}
+
+////////////////////////////////////////////////////////////////////////
+// void HttpTransact::HandleApiErrorJump(State* s)
+//
+//   Called after an API function indicates it wished to send an
+//     error to the user agent
+////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleApiErrorJump(State* s)
+{
+  DebugTxn("http_trans", "[HttpTransact::HandleApiErrorJump]");
+
+  // since the READ_REQUEST_HDR_HOOK is processed before
+  //   we examine the request, returning TS_EVENT_ERROR will cause
+  //   the protocol in the via string to be "?"  Set it here
+  //   since we know it has to be http
+  // For CONNECT method, next_hop_scheme is NULL
+  if (s->next_hop_scheme < 0) {
+    s->next_hop_scheme = URL_WKSIDX_HTTP;
+  }
+  // The client response may not be empty in the
+  // case the txn was reenabled in error by a plugin from hook SEND_RESPONSE_HDR.
+  // build_response doesn't clean the header. So clean it up before.
+  // Do fields_clear() instead of clear() to prevent memory leak
+  // and set the source to internal so chunking is handled correctly
+  if (s->hdr_info.client_response.valid()) {
+    s->hdr_info.client_response.fields_clear();
+    s->source = SOURCE_INTERNAL;
+  }
+  
+  /** 
+    The API indicated an error. Lets use a >=400 error from the state (if one's set) or fallback to a 
+    generic HTTP/1.X 500 INKApi Error
+  **/
+  if ( s->http_return_code && s->http_return_code >= HTTP_STATUS_BAD_REQUEST ) {
+    const char *reason = http_hdr_reason_lookup(s->http_return_code);;
+    build_response(s, &s->hdr_info.client_response, s->client_info.http_version, s->http_return_code,
+                   reason?reason:"Error" );
+  }
+  else {
+    build_response(s, &s->hdr_info.client_response, s->client_info.http_version,
+                   HTTP_STATUS_INTERNAL_SERVER_ERROR, "INKApi Error");
+  }  
+
+  TRANSACT_RETURN(SM_ACTION_INTERNAL_CACHE_NOOP, NULL);
+  return;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : PPDNSLookup
+// Description: called after DNS lookup of parent proxy name
+//
+// Details    :
+//
+// the configuration information gave us the name of the parent proxy
+// to send the request to. this function is called after the dns lookup
+// for that name. it may fail, in which case we look for the next parent
+// proxy to try and if none exist, then go to the origin server.
+// if the lookup succeeds, we open a connection to the parent proxy.
+//
+//
+// Possible Next States From Here:
+
+// - HttpTransact::SM_ACTION_DNS_LOOKUP;
+// - HttpTransact::ORIGIN_SERVER_RAW_OPEN;
+// - HttpTransact::ORIGIN_SERVER_OPEN;
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::PPDNSLookup(State* s)
+{
+  ++s->dns_info.attempts;
+
+  DebugTxn("http_trans", "[HttpTransact::PPDNSLookup] This was attempt %d", s->dns_info.attempts);
+
+  ink_assert(s->dns_info.looking_up == PARENT_PROXY);
+  if (!s->dns_info.lookup_success) {
+    // DNS lookup of parent failed, find next parent or o.s.
+    find_server_and_update_current_info(s);
+    if (!ats_is_ip(&s->current.server->addr)) {
+      if (s->current.request_to == PARENT_PROXY) {
+        TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, PPDNSLookup);
+      } else {
+        // We could be out of parents here if all the parents
+        // failed DNS lookup
+        ink_assert(s->current.request_to == HOST_NONE);
+        handle_parent_died(s);
+      }
+      return;
+    }
+  } else {
+    // lookup succeeded, open connection to p.p.
+    ats_ip_copy(&s->parent_info.addr, s->host_db_info.ip());
+    get_ka_info_from_host_db(s, &s->parent_info, &s->client_info, &s->host_db_info);
+    s->parent_info.dns_round_robin = s->host_db_info.round_robin;
+
+    char addrbuf[INET6_ADDRSTRLEN];
+    DebugTxn("http_trans", "[PPDNSLookup] DNS lookup for sm_id[%" PRId64"] successful IP: %s",
+          s->state_machine->sm_id, ats_ip_ntop(&s->parent_info.addr.sa, addrbuf, sizeof(addrbuf)));
+  }
+
+  // Since this function can be called several times while retrying
+  //  parents, check to see if we've already built our request
+  if (!s->hdr_info.server_request.valid()) {
+    build_request(s, &s->hdr_info.client_request, &s->hdr_info.server_request, s->current.server->http_version);
+
+    // Take care of deferred (issue revalidate) work in building
+    //   the request
+    if (s->pending_work != NULL) {
+      ink_assert(s->pending_work == issue_revalidate);
+      (*s->pending_work) (s);
+      s->pending_work = NULL;
+    }
+  }
+  // what kind of a connection (raw, simple)
+  s->next_action = how_to_open_connection(s);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Name       : ReDNSRoundRobin
+// Description: Called after we fail to contact part of a round-robin
+//              robin server set and we found a another ip address.
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+// - HttpTransact::ORIGIN_SERVER_RAW_OPEN;
+// - HttpTransact::ORIGIN_SERVER_OPEN;
+// - HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::ReDNSRoundRobin(State* s)
+{
+  ink_assert(s->current.server == &s->server_info);
+  ink_assert(s->current.server->had_connect_fail());
+
+  if (s->dns_info.lookup_success) {
+    // We using a new server now so clear the connection
+    //  failure mark
+    s->current.server->clear_connect_fail();
+
+    // Our ReDNS of the server succeeded so update the necessary
+    //  information and try again
+    ats_ip_copy(&s->server_info.addr, s->host_db_info.ip());
+    ats_ip_copy(&s->request_data.dest_ip, &s->server_info.addr);
+    get_ka_info_from_host_db(s, &s->server_info, &s->client_info, &s->host_db_info);
+    s->server_info.dns_round_robin = s->host_db_info.round_robin;
+
+    char addrbuf[INET6_ADDRSTRLEN];
+    DebugTxn("http_trans", "[ReDNSRoundRobin] DNS lookup for O.S. successful IP: %s",
+          ats_ip_ntop(&s->server_info.addr.sa, addrbuf, sizeof(addrbuf)));
+
+    s->next_action = how_to_open_connection(s);
+  } else {
+    // Our ReDNS failed so output the DNS failure error message
+    build_error_response(s, HTTP_STATUS_BAD_GATEWAY, "Cannot find server.", "connect#dns_failed", NULL);
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+    //  s->next_action = PROXY_INTERNAL_CACHE_NOOP;
+  }
+
+  return;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : OSDNSLookup
+// Description: called after the DNS lookup of origin server name
+//
+// Details    :
+//
+// normally called after Start. may be called more than once, however,
+// if the dns lookup fails. this may be if the client does not specify
+// the full hostname (e.g. just cnn, instead of www.cnn.com), or because
+// it was not possible to resolve the name after several attempts.
+//
+// the next action depends. since this function is normally called after
+// a request has come in, which is valid and does not require an immediate
+// response, the next action may just be to open a connection to the
+// origin server, or a parent proxy, or the next action may be to do a
+// cache lookup, or in the event of an error, the next action may be to
+// send a response back to the client.
+//
+//
+// Possible Next States From Here:
+// - HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+// - HttpTransact::CACHE_LOOKUP;
+// - HttpTransact::SM_ACTION_DNS_LOOKUP;
+// - HttpTransact::ORIGIN_SERVER_RAW_OPEN;
+// - HttpTransact::ORIGIN_SERVER_OPEN;
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::OSDNSLookup(State* s)
+{
+  static int max_dns_lookups = 3 + s->http_config_param->num_url_expansions;
+  ++s->dns_info.attempts;
+
+  DebugTxn("http_trans", "[HttpTransact::OSDNSLookup] This was attempt %d", s->dns_info.attempts);
+
+  ink_assert(s->dns_info.looking_up == ORIGIN_SERVER);
+
+  // detect whether we are about to self loop. the client may have
+  // specified the proxy as the origin server (badness).
+
+  // Check if this procedure is already done - YTS Team, yamsat
+  if (!s->request_will_not_selfloop) {
+    if (will_this_request_self_loop(s)) {
+      DebugTxn("http_trans", "[OSDNSLookup] request will selfloop - bailing out");
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+    }
+  }
+
+  if (!s->dns_info.lookup_success) {
+    // maybe the name can be expanded (e.g cnn -> www.cnn.com)
+    HostNameExpansionError_t host_name_expansion = try_to_expand_host_name(s);
+
+    switch (host_name_expansion) {
+    case RETRY_EXPANDED_NAME:
+      // expansion successful, do a dns lookup on expanded name
+      HTTP_RELEASE_ASSERT(s->dns_info.attempts < max_dns_lookups);
+      HTTP_RELEASE_ASSERT(s->http_config_param->enable_url_expandomatic);
+      TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);
+      break;
+    case EXPANSION_NOT_ALLOWED:
+    case EXPANSION_FAILED:
+    case DNS_ATTEMPTS_EXHAUSTED:
+      if (DNSLookupInfo::OS_ADDR_TRY_HOSTDB == s->dns_info.os_addr_style) {
+        // No HostDB data, just keep on with the CTA.
+        s->dns_info.lookup_success = true;
+        s->dns_info.os_addr_style = DNSLookupInfo::OS_ADDR_USE_CLIENT;
+        DebugTxn("http_seq", "[HttpTransact::OSDNSLookup] DNS lookup unsuccessful reverting to force client target address use");
+      } else {
+        if (host_name_expansion == EXPANSION_NOT_ALLOWED) {
+          // config file doesn't allow automatic expansion of host names
+          HTTP_RELEASE_ASSERT(!(s->http_config_param->enable_url_expandomatic));
+          DebugTxn("http_seq", "[HttpTransact::OSDNSLookup] DNS Lookup unsuccessful");
+        } else if (host_name_expansion == EXPANSION_FAILED) {
+          // not able to expand the hostname. dns lookup failed
+          DebugTxn("http_seq", "[HttpTransact::OSDNSLookup] DNS Lookup unsuccessful");
+        } else if (host_name_expansion == DNS_ATTEMPTS_EXHAUSTED) {
+          // retry attempts exhausted --- can't find dns entry for this host name
+          HTTP_RELEASE_ASSERT(s->dns_info.attempts >= max_dns_lookups);
+          DebugTxn("http_seq", "[HttpTransact::OSDNSLookup] DNS Lookup unsuccessful");
+        }
+        // output the DNS failure error message
+        SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+        build_error_response(s, HTTP_STATUS_BAD_GATEWAY, "Cannot find server.", "connect#dns_failed", NULL);
+        // s->cache_info.action = CACHE_DO_NO_ACTION;
+        TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+      }
+      break;
+    default:
+      ink_assert(!("try_to_expand_hostname returned an unsupported code"));
+      break;
+    }
+    return;
+  }
+  // ok, so the dns lookup succeeded
+  ink_assert(s->dns_info.lookup_success);
+  DebugTxn("http_seq", "[HttpTransact::OSDNSLookup] DNS Lookup successful");
+
+  if (DNSLookupInfo::OS_ADDR_TRY_HOSTDB == s->dns_info.os_addr_style) {
+    // We've backed off from a client supplied address and found some
+    // HostDB addresses. We use those if they're different from the CTA.
+    // In all cases we now commit to client or HostDB for our source.
+    if (s->host_db_info.round_robin) {
+      HostDBInfo* cta = s->host_db_info.rr()->select_next(&s->current.server->addr.sa);
+      if (cta) {
+        // found another addr, lock in host DB.
+        s->host_db_info = *cta;
+        s->dns_info.os_addr_style = DNSLookupInfo::OS_ADDR_USE_HOSTDB;
+      } else {
+        // nothing else there, continue with CTA.
+        s->dns_info.os_addr_style = DNSLookupInfo::OS_ADDR_USE_CLIENT;
+      }
+    } else if (ats_ip_addr_eq(s->host_db_info.ip(), &s->server_info.addr.sa)) {
+      s->dns_info.os_addr_style = DNSLookupInfo::OS_ADDR_USE_CLIENT;
+    } else {
+      s->dns_info.os_addr_style = DNSLookupInfo::OS_ADDR_USE_HOSTDB;
+    }
+  }
+
+  // Check to see if can fullfill expect requests based on the cached
+  // update some state variables with hostdb information that has
+  // been provided.
+  ats_ip_copy(&s->server_info.addr, s->host_db_info.ip());
+  ats_ip_copy(&s->request_data.dest_ip, &s->server_info.addr);
+  get_ka_info_from_host_db(s, &s->server_info, &s->client_info, &s->host_db_info);
+  s->server_info.dns_round_robin = s->host_db_info.round_robin;
+
+  char addrbuf[INET6_ADDRSTRLEN];
+  DebugTxn("http_trans", "[OSDNSLookup] DNS lookup for O.S. successful "
+        "IP: %s", ats_ip_ntop(&s->server_info.addr.sa, addrbuf, sizeof(addrbuf)));
+
+  // so the dns lookup was a success, but the lookup succeeded on
+  // a hostname which was expanded by the traffic server. we should
+  // not automatically forward the request to this expanded hostname.
+  // return a response to the client with the expanded host name
+  // and a tasty little blurb explaining what happened.
+
+  // if a DNS lookup succeeded on a user-defined
+  // hostname expansion, forward the request to the expanded hostname.
+  // On the other hand, if the lookup succeeded on a www.<hostname>.com
+  // expansion, return a 302 response.
+  // [amc] Also don't redirect if we backed off using HostDB instead of CTA.
+  if (s->dns_info.attempts == max_dns_lookups && s->dns_info.looking_up == ORIGIN_SERVER && DNSLookupInfo::OS_ADDR_USE_CLIENT != s->dns_info.os_addr_style) {
+    DebugTxn("http_trans", "[OSDNSLookup] DNS name resolution on expansion");
+    DebugTxn("http_seq", "[OSDNSLookup] DNS name resolution on expansion - returning");
+    build_redirect_response(s);
+    // s->cache_info.action = CACHE_DO_NO_ACTION;
+    TRANSACT_RETURN(SM_ACTION_INTERNAL_CACHE_NOOP, NULL);
+  }
+  // everything succeeded with the DNS lookup so do an API callout
+  //   that allows for filtering.  We'll do traffic_server internal
+  //   filtering after API filtering
+
+
+  // After SM_ACTION_DNS_LOOKUP, goto the saved action/state ORIGIN_SERVER_(RAW_)OPEN.
+  // Should we skip the StartAccessControl()? why?
+
+  if (s->cdn_remap_complete) {
+    DebugTxn("cdn", "This is a late DNS lookup.  We are going to the OS, " "not to HandleFiltering.");
+    ink_assert(s->cdn_saved_next_action == SM_ACTION_ORIGIN_SERVER_OPEN || s->cdn_saved_next_action == SM_ACTION_ORIGIN_SERVER_RAW_OPEN);
+    DebugTxn("cdn", "outgoing version -- (pre  conversion) %d", s->hdr_info.server_request.m_http->m_version);
+    (&s->hdr_info.server_request)->version_set(HTTPVersion(1, 1));
+    HttpTransactHeaders::convert_request(s->current.server->http_version, &s->hdr_info.server_request);
+    DebugTxn("cdn", "outgoing version -- (post conversion) %d", s->hdr_info.server_request.m_http->m_version);
+    TRANSACT_RETURN(s->cdn_saved_next_action, NULL);
+  } else if (DNSLookupInfo::OS_ADDR_USE_CLIENT == s->dns_info.os_addr_style ||
+             DNSLookupInfo::OS_ADDR_USE_HOSTDB == s->dns_info.os_addr_style) {
+    // we've come back after already trying the server to get a better address
+    // and finished with all backtracking - return to trying the server.
+    TRANSACT_RETURN(how_to_open_connection(s), HttpTransact::HandleResponse);
+  } else if (s->dns_info.lookup_name[0] <= '9' &&
+             s->dns_info.lookup_name[0] >= '0' &&
+             s->parent_params->ParentTable->hostMatch &&
+             !s->http_config_param->no_dns_forward_to_parent) {
+    // note, broken logic: ACC fudges the OR stmt to always be true,
+    // 'AuthHttpAdapter' should do the rev-dns if needed, not here .
+    TRANSACT_RETURN(SM_ACTION_DNS_REVERSE_LOOKUP, HttpTransact::StartAccessControl);
+  } else {
+    //(s->state_machine->authAdapter).StartLookup (s);
+    // TRANSACT_RETURN(SM_ACTION_AUTH_LOOKUP, NULL);
+
+    if (s->force_dns) {
+      StartAccessControl(s);    // If skip_dns is enabled and no ip based rules in cache.config and parent.config
+      // Access Control is called after DNS response
+    } else {
+      if ((s->cache_info.action == CACHE_DO_NO_ACTION) &&
+          (((s->hdr_info.client_request.presence(MIME_PRESENCE_RANGE) && !s->txn_conf->cache_range_write) ||
+            s->range_setup == RANGE_NOT_SATISFIABLE || s->range_setup == RANGE_NOT_HANDLED))) {
+        TRANSACT_RETURN(SM_ACTION_API_OS_DNS, HandleCacheOpenReadMiss);
+      } else if (s->cache_lookup_result == HttpTransact::CACHE_LOOKUP_SKIPPED) {
+        TRANSACT_RETURN(SM_ACTION_API_OS_DNS, LookupSkipOpenServer);
+        // DNS Lookup is done after LOOKUP Skipped  and after we get response
+        // from the DNS we need to call LookupSkipOpenServer
+      } else if (s->cache_lookup_result == CACHE_LOOKUP_HIT_FRESH ||
+                 s->cache_lookup_result == CACHE_LOOKUP_HIT_WARNING ||
+                 s->cache_lookup_result == CACHE_LOOKUP_HIT_STALE) {
+        //DNS lookup is done if the content is state need to call handle cache open read hit
+        TRANSACT_RETURN(SM_ACTION_API_OS_DNS, HandleCacheOpenReadHit);
+      } else if (s->cache_lookup_result == CACHE_LOOKUP_MISS || s->cache_info.action == CACHE_DO_NO_ACTION) {
+        TRANSACT_RETURN(SM_ACTION_API_OS_DNS, HandleCacheOpenReadMiss);
+        //DNS lookup is done if the lookup failed and need to call Handle Cache Open Read Miss
+      } else {
+        build_error_response(s, HTTP_STATUS_INTERNAL_SERVER_ERROR, "Invalid Cache Lookup result", "default", NULL);
+        Log::error("HTTP: Invalid CACHE LOOKUP RESULT : %d", s->cache_lookup_result);
+        TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+      }
+    }
+  }
+}
+
+void
+HttpTransact::StartAccessControl(State* s)
+{
+  //if (s->cop_test_page  || (s->state_machine->authAdapter.disabled() == true)) {
+    // Heartbeats should always be allowed.
+    // s->content_control.access = ACCESS_ALLOW;
+    HandleRequestAuthorized(s);
+  //  return;
+ // }
+  // ua_session is NULL for scheduled updates.
+  // Don't use req_flavor to do the test because if updated
+  // urls are remapped, the req_flavor is changed to REV_PROXY.
+  //if (s->state_machine->ua_session == NULL) {
+    // Scheduled updates should always be allowed
+   // return;
+  //}
+  // pass the access control logic to the ACC module.
+  //(s->state_machine->authAdapter).StartLookup(s);
+}
+
+void
+HttpTransact::HandleRequestAuthorized(State* s)
+{
+  //(s->state_machine->authAdapter).SetState(s);
+  //(s->state_machine->authAdapter).UserAuthorized(NULL);
+  //TRANSACT_RETURN(HTTP_API_OS_DNS, HandleFiltering);
+   if (s->force_dns) {
+    TRANSACT_RETURN(SM_ACTION_API_OS_DNS, HttpTransact::DecideCacheLookup);
+  } else {
+    HttpTransact::DecideCacheLookup(s);
+  }
+}
+
+void
+HttpTransact::HandleFiltering(State* s)
+{
+  ink_release_assert(!"Fix-Me AUTH MERGE");
+
+  if (s->method == HTTP_WKSIDX_PUSH && s->http_config_param->push_method_enabled == 0) {
+    // config file says this request is not authorized.
+    // send back error response to client.
+    DebugTxn("http_trans", "[HandleFiltering] access denied.");
+    DebugTxn("http_seq", "[HttpTransact::HandleFiltering] Access Denied.");
+
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+    // adding a comment so that cvs recognizes that I added a space in the text below
+    build_error_response(s, HTTP_STATUS_FORBIDDEN, "Access Denied", "access#denied", NULL);
+    // s->cache_info.action = CACHE_DO_NO_ACTION;
+    TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+  }
+
+  DebugTxn("http_seq", "[HttpTransact::HandleFiltering] Request Authorized.");
+  //////////////////////////////////////////////////////////////
+  // ok, the config file says that the request is authorized. //
+  //////////////////////////////////////////////////////////////
+
+  // request is not black listed so now decided if we ought to
+  //  lookup the cache
+  DecideCacheLookup(s);
+}
+
+void
+HttpTransact::DecideCacheLookup(State* s)
+{
+  // Check if a client request is lookupable.
+  if (s->redirect_info.redirect_in_process || s->cop_test_page) {
+    // for redirect, we want to skip cache lookup and write into
+    // the cache directly with the URL before the redirect
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->current.mode = GENERIC_PROXY;
+  } else {
+    if (is_request_cache_lookupable(s)) {
+      s->cache_info.action = CACHE_DO_LOOKUP;
+      s->current.mode = GENERIC_PROXY;
+    } else {
+      s->cache_info.action = CACHE_DO_NO_ACTION;
+      s->current.mode = TUNNELLING_PROXY;
+      HTTP_INCREMENT_TRANS_STAT(http_tunnels_stat);
+    }
+  }
+
+  if (service_transaction_in_proxy_only_mode(s)) {
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->current.mode = TUNNELLING_PROXY;
+    HTTP_INCREMENT_TRANS_STAT(http_throttled_proxy_only_stat);
+  }
+  // at this point the request is ready to continue down the
+  // traffic server path.
+
+  // now decide whether the cache can even be looked up.
+  if (s->cache_info.action == CACHE_DO_LOOKUP) {
+    DebugTxn("http_trans", "[DecideCacheLookup] Will do cache lookup.");
+    DebugTxn("http_seq", "[DecideCacheLookup] Will do cache lookup");
+    ink_assert(s->current.mode != TUNNELLING_PROXY);
+
+    if (s->cache_info.lookup_url == NULL) {
+      HTTPHdr* incoming_request = &s->hdr_info.client_request;
+
+      if (s->txn_conf->maintain_pristine_host_hdr) {
+        s->cache_info.lookup_url_storage.create(NULL);
+        s->cache_info.lookup_url_storage.copy(incoming_request->url_get());
+        s->cache_info.lookup_url = &s->cache_info.lookup_url_storage;
+        // if the target isn't in the URL, put it in the copy for
+        // cache lookup.
+        incoming_request->set_url_target_from_host_field(s->cache_info.lookup_url);
+      } else {
+        // make sure the target is in the URL.
+        incoming_request->set_url_target_from_host_field();
+        s->cache_info.lookup_url = incoming_request->url_get();
+      }
+
+      // *somebody* wants us to not hack the host header in a reverse proxy setup.
+      // In addition, they want us to reverse proxy for 6000 servers, which vary
+      // the stupid content on the Host header!!!!
+      // We could a) have 6000 alts (barf, puke, vomit) or b) use the original
+      // host header in the url before doing all cache actions (lookups, writes, etc.)
+      if (s->txn_conf->maintain_pristine_host_hdr) {
+        char const* host_hdr;
+        char const* port_hdr;
+        int host_len, port_len;
+        // So, the host header will have the original host header.
+        if (incoming_request->get_host_port_values(&host_hdr, &host_len, &port_hdr, &port_len)) {
+          int port = 0;
+          if (port_hdr) {
+            s->cache_info.lookup_url->host_set(host_hdr, host_len);
+            port = ink_atoi(port_hdr, port_len);
+          } else {
+            s->cache_info.lookup_url->host_set(host_hdr, host_len);
+          }
+          s->cache_info.lookup_url->port_set(port);
+        }
+      }
+      ink_assert(s->cache_info.lookup_url->valid() == true);
+    }
+
+    TRANSACT_RETURN(SM_ACTION_CACHE_LOOKUP, NULL);
+  } else {
+    ink_assert(s->cache_info.action != CACHE_DO_LOOKUP && s->cache_info.action != CACHE_DO_SERVE);
+
+    DebugTxn("http_trans", "[DecideCacheLookup] Will NOT do cache lookup.");
+    DebugTxn("http_seq", "[DecideCacheLookup] Will NOT do cache lookup");
+    // If this is a push request, we need send an error because
+    //   since what ever was sent is not cachable
+    if (s->method == HTTP_WKSIDX_PUSH) {
+      HandlePushError(s, "Request Not Cachable");
+      return;
+    }
+    // for redirect, we skipped cache lookup to do the automatic redirection
+    if (s->redirect_info.redirect_in_process) {
+      // without calling out the CACHE_LOOKUP_COMPLETE_HOOK
+      s->cache_info.action = CACHE_DO_WRITE;
+      LookupSkipOpenServer(s);
+    } else {
+      // calling out CACHE_LOOKUP_COMPLETE_HOOK even when the cache
+      // lookup is skipped
+      s->cache_lookup_result = HttpTransact::CACHE_LOOKUP_SKIPPED;
+      if (s->force_dns) {
+        TRANSACT_RETURN(SM_ACTION_API_CACHE_LOOKUP_COMPLETE, LookupSkipOpenServer);
+      } else {
+        // Returning to dns lookup as cache lookup is skipped
+        TRANSACT_RETURN(SM_ACTION_API_CACHE_LOOKUP_COMPLETE, CallOSDNSLookup);
+      }
+    }
+  }
+
+  return;
+}
+
+void
+HttpTransact::LookupSkipOpenServer(State* s)
+{
+  // cache will not be looked up. open a connection
+  // to a parent proxy or to the origin server.
+  find_server_and_update_current_info(s);
+
+  if (s->current.request_to == PARENT_PROXY) {
+    TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, PPDNSLookup);
+  }
+
+  ink_assert(s->current.request_to == ORIGIN_SERVER);
+  // ink_assert(s->current.server->ip != 0);
+
+  build_request(s, &s->hdr_info.client_request, &s->hdr_info.server_request, s->current.server->http_version);
+
+  StateMachineAction_t next = how_to_open_connection(s);
+  s->next_action = next;
+  if (next == SM_ACTION_ORIGIN_SERVER_OPEN || next == SM_ACTION_ORIGIN_SERVER_RAW_OPEN) {
+    TRANSACT_RETURN(next, HttpTransact::HandleResponse);
+  }
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+// Name       : HandleCacheOpenReadPush
+// Description:
+//
+// Details    :
+//
+// Called on PUSH requests from HandleCacheOpenRead
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleCacheOpenReadPush(State* s, bool read_successful)
+{
+  if (read_successful) {
+    s->cache_info.action = CACHE_PREPARE_TO_UPDATE;
+  } else {
+    s->cache_info.action = CACHE_PREPARE_TO_WRITE;
+  }
+
+  TRANSACT_RETURN(SM_ACTION_READ_PUSH_HDR, HandlePushResponseHdr);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// Name       : HandlePushResponseHdr
+// Description:
+//
+// Details    :
+//
+// Called after reading the response header on PUSH request
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandlePushResponseHdr(State* s)
+{
+  // Verify the pushed header wasn't longer than the content length
+  int64_t body_bytes = s->hdr_info.request_content_length - s->state_machine->pushed_response_hdr_bytes;
+  if (body_bytes < 0) {
+    HandlePushError(s, "Bad Content Length");
+    return;
+  }
+  // We need to create the request header storing in the cache
+  s->hdr_info.server_request.create(HTTP_TYPE_REQUEST);
+  s->hdr_info.server_request.copy(&s->hdr_info.client_request);
+  s->hdr_info.server_request.method_set(HTTP_METHOD_GET, HTTP_LEN_GET);
+  s->hdr_info.server_request.value_set("X-Inktomi-Source", 16, "http PUSH", 9);
+
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", &s->hdr_info.server_response, s->state_machine_id, "Pushed Response Header");
+
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", &s->hdr_info.server_request, s->state_machine_id, "Generated Request Header");
+
+  s->response_received_time = s->request_sent_time = ink_cluster_time();
+
+  if (is_response_cacheable(s, &s->hdr_info.server_request, &s->hdr_info.server_response)) {
+    ink_assert(s->cache_info.action == CACHE_PREPARE_TO_WRITE || s->cache_info.action == CACHE_PREPARE_TO_UPDATE);
+
+    TRANSACT_RETURN(SM_ACTION_CACHE_ISSUE_WRITE, HandlePushCacheWrite);
+  } else {
+    HandlePushError(s, "Response Not Cachable");
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+// Name       : HandlePushCacheWrite
+// Description:
+//
+// Details    :
+//
+// Called after performing the cache write on a push request
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandlePushCacheWrite(State* s)
+{
+  switch (s->cache_info.write_lock_state) {
+  case CACHE_WL_SUCCESS:
+    // We were able to get the lock for the URL vector in the cache
+    if (s->cache_info.action == CACHE_PREPARE_TO_WRITE) {
+      s->cache_info.action = CACHE_DO_WRITE;
+    } else if (s->cache_info.action == CACHE_PREPARE_TO_UPDATE) {
+      s->cache_info.action = CACHE_DO_REPLACE;
+    } else {
+      ink_release_assert(0);
+    }
+    set_headers_for_cache_write(s, &s->cache_info.object_store, &s->hdr_info.server_request, &s->hdr_info.server_response);
+
+    TRANSACT_RETURN(SM_ACTION_STORE_PUSH_BODY, NULL);
+    break;
+
+  case CACHE_WL_FAIL:
+  case CACHE_WL_READ_RETRY:
+    // No write lock, can not complete request so bail
+    HandlePushError(s, "Cache Write Failed");
+    break;
+  case CACHE_WL_INIT:
+  default:
+    ink_release_assert(0);
+  }
+}
+
+
+void
+HttpTransact::HandlePushTunnelSuccess(State* s)
+{
+  ink_assert(s->cache_info.action == CACHE_DO_WRITE || s->cache_info.action == CACHE_DO_REPLACE);
+
+  // FIX ME: check PUSH spec for status codes
+  HTTPStatus resp_status = (s->cache_info.action == CACHE_DO_WRITE) ? HTTP_STATUS_CREATED : HTTP_STATUS_OK;
+
+  build_response(s, &s->hdr_info.client_response, s->client_info.http_version, resp_status);
+
+  TRANSACT_RETURN(SM_ACTION_INTERNAL_CACHE_NOOP, NULL);
+}
+
+
+void
+HttpTransact::HandlePushTunnelFailure(State* s)
+{
+  HandlePushError(s, "Cache Error");
+}
+
+void
+HttpTransact::HandleBadPushRespHdr(State* s)
+{
+  HandlePushError(s, "Malformed Pushed Response Header");
+}
+
+void
+HttpTransact::HandlePushError(State *s, const char *reason)
+{
+  s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+
+  // Set half close flag to prevent TCP
+  //   reset from the body still being transfered
+  s->state_machine->set_ua_half_close_flag();
+
+  build_error_response(s, HTTP_STATUS_BAD_REQUEST, reason, "default", NULL);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleCacheOpenRead
+// Description: the cache lookup succeeded - may have been a hit or a miss
+//
+// Details    :
+//
+// the cache lookup succeeded. first check if the lookup resulted in
+// a hit or a miss, if the lookup was for an http request.
+// This function just funnels the result into the appropriate
+// functions which handle these different cases.
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleCacheOpenRead(State* s)
+{
+  DebugTxn("http_trans", "[HttpTransact::HandleCacheOpenRead]");
+
+  SET_VIA_STRING(VIA_DETAIL_CACHE_TYPE, VIA_DETAIL_CACHE);
+
+  bool read_successful = true;
+
+  if (s->cache_info.object_read == 0) {
+    read_successful = false;
+    //
+    // If somebody else was writing the document, proceed just like it was
+    // a normal cache miss, except don't try to write to the cache
+    //
+    if (s->cache_lookup_result == CACHE_LOOKUP_DOC_BUSY) {
+      s->cache_lookup_result = CACHE_LOOKUP_MISS;
+      s->cache_info.action = CACHE_DO_NO_ACTION;
+    }
+  } else {
+    CacheHTTPInfo *obj = s->cache_info.object_read;
+    if (obj->response_get()->type_get() == HTTP_TYPE_UNKNOWN) {
+      read_successful = false;
+    }
+    if (obj->request_get()->type_get() == HTTP_TYPE_UNKNOWN) {
+      read_successful = false;
+    }
+  }
+
+  if (s->method == HTTP_WKSIDX_PUSH) {
+    HandleCacheOpenReadPush(s, read_successful);
+  } else if (read_successful == false) {
+    // cache miss
+    DebugTxn("http_trans", "CacheOpenRead -- miss");
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_NOT_CACHED);
+    //StartAccessControl(s);
+    if (s->force_dns) {
+      HandleCacheOpenReadMiss(s);
+    } else {
+      //Cache Lookup Unsuccessful ..calling dns lookup
+      TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);
+    }
+  }
+  else {
+    // cache hit
+    DebugTxn("http_trans", "CacheOpenRead -- hit");
+    TRANSACT_RETURN(SM_ACTION_API_READ_CACHE_HDR, HandleCacheOpenReadHitFreshness);
+  }
+
+  return;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : issue_revalidate
+// Description:   Sets cache action and does various bookkeeping
+//
+// Details    :
+//
+// The Cache Lookup was hit but the document was stale so after
+//   calling build_request, we need setup up the cache action,
+//   set the via code, and possibly conditionalize the request
+// The paths that we take to get this code are:
+//   Directly from HandleOpenReadHit if we are going to the origin server
+//   After PPDNS if we are going to a parent proxy
+//
+//
+// Possible Next States From Here:
+// -
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::issue_revalidate(State* s)
+{
+  HTTPHdr *c_resp = find_appropriate_cached_resp(s);
+  SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_CACHE_STALE);
+  ink_assert(GET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP) != ' ');
+
+  if (s->www_auth_content == CACHE_AUTH_FRESH) {
+    s->hdr_info.server_request.method_set(HTTP_METHOD_HEAD, HTTP_LEN_HEAD);
+    // The document is fresh in cache and we just want to see if the
+    // the client has the right credentials
+    // this cache action is just to get us into the hcoofsr function
+    s->cache_info.action = CACHE_DO_UPDATE;
+    DUMP_HEADER("http_hdrs", &s->hdr_info.server_request, s->state_machine_id, "Proxy's Request (Conditionalized)");
+    return;
+  }
+
+  if (s->cache_info.write_lock_state == CACHE_WL_INIT) {
+    // We do a cache lookup for DELETE, PUT and POST requests as well.
+    // We must, however, delete the cached copy after forwarding the
+    // request to the server. is_cache_response_returnable will ensure
+    // that we forward the request. We now specify what the cache
+    // action should be when the response is received.
+    if (does_method_require_cache_copy_deletion(s->method)) {
+      s->cache_info.action = CACHE_PREPARE_TO_DELETE;
+      DebugTxn("http_seq", "[HttpTransact::issue_revalidate] cache action: DELETE");
+    } else {
+      s->cache_info.action = CACHE_PREPARE_TO_UPDATE;
+      DebugTxn("http_seq", "[HttpTransact::issue_revalidate] cache action: UPDATE");
+    }
+  } else {
+    // We've looped back around due to missing the write lock
+    //  for the cache.  At this point we want to forget about the cache
+    ink_assert(s->cache_info.write_lock_state == CACHE_WL_READ_RETRY);
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    return;
+  }
+
+  // if the document is cached, just send a conditional request to the server
+
+  // So the request does not have preconditions. It can, however
+  // be a simple GET request with a Pragma:no-cache. As on 8/28/98
+  // we have fixed the whole Reload/Shift-Reload cached copy
+  // corruption problem. This means that we can issue a conditional
+  // request to the server only if the incoming request has a conditional
+  // or the incoming request does NOT have a no-cache header.
+  // In other words, if the incoming request is not conditional
+  // but has a no-cache header we can not issue an IMS. check for
+  // that case here.
+  bool no_cache_in_request = false;
+
+  if (s->hdr_info.client_request.is_pragma_no_cache_set() ||
+      s->hdr_info.client_request.is_cache_control_set(HTTP_VALUE_NO_CACHE)) {
+    DebugTxn("http_trans", "[issue_revalidate] no-cache header directive in request, folks");
+    no_cache_in_request = true;
+  }
+
+  if ((!(s->hdr_info.client_request.presence(MIME_PRESENCE_IF_MODIFIED_SINCE))) &&
+      (!(s->hdr_info.client_request.presence(MIME_PRESENCE_IF_NONE_MATCH))) &&
+      (no_cache_in_request == true) &&
+      (!s->txn_conf->cache_ims_on_client_no_cache) && (s->www_auth_content == CACHE_AUTH_NONE)) {
+    DebugTxn("http_trans", "[issue_revalidate] Can not make this a conditional request. This is the force update of the cached copy case");
+    // set cache action to update. response will be a 200 or error,
+    // causing cached copy to be replaced (if 200).
+    s->cache_info.action = CACHE_PREPARE_TO_UPDATE;
+    return;
+  }
+  // do not conditionalize if the cached response is not a 200
+  switch (c_resp->status_get()) {
+  case HTTP_STATUS_OK:         // 200
+    // don't conditionalize if we are configured to repeat the clients
+    //   conditionals
+    if (s->txn_conf->cache_when_to_revalidate == 4)
+      break;
+    // ok, request is either a conditional or does not have a no-cache.
+    //   (or is method that we don't conditionalize but lookup the
+    //    cache on like DELETE)
+    if (c_resp->get_last_modified() > 0 &&
+        s->hdr_info.server_request.method_get_wksidx() == HTTP_WKSIDX_GET && s->range_setup == RANGE_NONE) {
+      // make this a conditional request
+      int length;
+      const char *str = c_resp->value_get(MIME_FIELD_LAST_MODIFIED, MIME_LEN_LAST_MODIFIED, &length);
+
+      s->hdr_info.server_request.value_set(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE, str, length);
+      if (!s->cop_test_page)
+        DUMP_HEADER("http_hdrs", &s->hdr_info.server_request, s->state_machine_id, "Proxy's Request (Conditionalized)");
+    }
+    // if Etag exists, also add if-non-match header
+    if (c_resp->presence(MIME_PRESENCE_ETAG) && s->hdr_info.server_request.method_get_wksidx() == HTTP_WKSIDX_GET) {
+      int length;
+      const char *etag = c_resp->value_get(MIME_FIELD_ETAG, MIME_LEN_ETAG, &length);
+      if ((length >= 2) && (etag[0] == 'W') && (etag[1] == '/')) {
+        etag += 2;
+        length -= 2;
+      }
+      s->hdr_info.server_request.value_set(MIME_FIELD_IF_NONE_MATCH, MIME_LEN_IF_NONE_MATCH, etag, length);
+      if (!s->cop_test_page)
+        DUMP_HEADER("http_hdrs", &s->hdr_info.server_request, s->state_machine_id, "Proxy's Request (Conditionalized)");
+    }
+    break;
+  case HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION:      // 203
+    /* fall through */
+  case HTTP_STATUS_MULTIPLE_CHOICES:   // 300
+    /* fall through */
+  case HTTP_STATUS_MOVED_PERMANENTLY:  // 301
+    /* fall through */
+  case HTTP_STATUS_GONE:       // 410
+    /* fall through */
+  default:
+    DebugTxn("http_trans", "[issue_revalidate] cached response is" "not a 200 response so no conditionalization.");
+    s->cache_info.action = CACHE_PREPARE_TO_UPDATE;
+    break;
+  case HTTP_STATUS_PARTIAL_CONTENT:
+    ink_assert(!"unexpected status code");
+    break;
+  }
+}
+
+
+void
+HttpTransact::HandleCacheOpenReadHitFreshness(State* s)
+{
+  CacheHTTPInfo *&obj = s->cache_info.object_read;
+
+  ink_release_assert((s->request_sent_time == UNDEFINED_TIME) && (s->response_received_time == UNDEFINED_TIME));
+  DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHitFreshness] Hit in cache");
+
+  if (delete_all_document_alternates_and_return(s, true)) {
+    DebugTxn("http_trans", "[HandleCacheOpenReadHitFreshness] Delete and return");
+    s->cache_info.action = CACHE_DO_DELETE;
+    s->next_action = HttpTransact::SM_ACTION_INTERNAL_CACHE_DELETE;
+    return;
+  }
+
+  s->request_sent_time = obj->request_sent_time_get();
+  s->response_received_time = obj->response_received_time_get();
+
+  // There may be clock skew if one of the machines
+  // went down and we do not have the correct delta
+  // for it. this is just to deal with the effects
+  // of the skew by setting minimum and maximum times
+  // so that ages are not negative, etc.
+  s->request_sent_time = min(s->client_request_time, s->request_sent_time);
+  s->response_received_time = min(s->client_request_time, s->response_received_time);
+
+  ink_assert(s->request_sent_time <= s->response_received_time);
+
+  DebugTxn("http_trans", "[HandleCacheOpenReadHitFreshness] request_sent_time      : %" PRId64,
+           (int64_t)s->request_sent_time);
+  DebugTxn("http_trans", "[HandleCacheOpenReadHitFreshness] response_received_time : %" PRId64,
+           (int64_t)s->response_received_time);
+  // if the plugin has already decided the freshness, we don't need to
+  // do it again
+  if (s->cache_lookup_result == HttpTransact::CACHE_LOOKUP_NONE) {
+    // is the document still fresh enough to be served back to
+    // the client without revalidation?
+    Freshness_t freshness = what_is_document_freshness(s, &s->hdr_info.client_request, obj->response_get());
+    switch (freshness) {
+    case FRESHNESS_FRESH:
+      DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHitFreshness] " "Fresh copy");
+      s->cache_lookup_result = HttpTransact::CACHE_LOOKUP_HIT_FRESH;
+      break;
+    case FRESHNESS_WARNING:
+      DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHitFreshness] " "Heuristic-based Fresh copy");
+      s->cache_lookup_result = HttpTransact::CACHE_LOOKUP_HIT_WARNING;
+      break;
+    case FRESHNESS_STALE:
+      DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHitFreshness] " "Stale in cache");
+      s->cache_lookup_result = HttpTransact::CACHE_LOOKUP_HIT_STALE;
+      s->is_revalidation_necessary = true;      // to identify a revalidation occurrence
+      break;
+    default:
+      ink_assert(!("what_is_document_freshness has returned unsupported code."));
+      break;
+    }
+  }
+
+  ink_assert(s->cache_lookup_result != HttpTransact::CACHE_LOOKUP_MISS);
+  if (s->cache_lookup_result == HttpTransact::CACHE_LOOKUP_HIT_STALE)
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_EXPIRED);
+
+  if (!s->force_dns) {          // If DNS is not performed before
+    if (need_to_revalidate(s)) {
+      TRANSACT_RETURN(SM_ACTION_API_CACHE_LOOKUP_COMPLETE, CallOSDNSLookup); // content needs to be revalidated and we did not perform a dns ....calling DNS lookup
+    } else {                    // document can be served can cache
+      TRANSACT_RETURN(SM_ACTION_API_CACHE_LOOKUP_COMPLETE, HttpTransact::HandleCacheOpenReadHit);
+    }
+  } else {                      // we have done dns . Its up to HandleCacheOpenReadHit to decide to go OS or serve from cache
+    TRANSACT_RETURN(SM_ACTION_API_CACHE_LOOKUP_COMPLETE, HttpTransact::HandleCacheOpenReadHit);
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : CallOSDNSLookup
+// Description: Moves in SM_ACTION_DNS_LOOKUP state and sets the transact return to OSDNSLookup
+//
+// Details    :
+/////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::CallOSDNSLookup(State* s)
+{
+  TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : need_to_revalidate
+// Description: Checks if a document which is in the cache needs to be revalidates
+//
+// Details    : Function calls AuthenticationNeeded and is_cache_response_returnable to determine
+//              if the cached document can be served
+/////////////////////////////////////////////////////////////////////////////
+bool
+HttpTransact::need_to_revalidate(State* s)
+{
+  bool needs_revalidate, needs_authenticate = false;
+  bool needs_cache_auth = false;
+  CacheHTTPInfo *obj;
+
+  if (s->api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE) {
+    obj = &s->cache_info.object_store;
+    ink_assert(obj->valid());
+    if (!obj->valid())
+      return true;
+  } else
+    obj = s->cache_info.object_read;
+
+  // do we have to authenticate with the server before
+  // sending back the cached response to the client?
+  Authentication_t authentication_needed =
+    AuthenticationNeeded(s->txn_conf, &s->hdr_info.client_request, obj->response_get());
+
+  switch (authentication_needed) {
+  case AUTHENTICATION_SUCCESS:
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication not needed");
+    needs_authenticate = false;
+    break;
+  case AUTHENTICATION_MUST_REVALIDATE:
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_METHOD);
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication needed");
+    needs_authenticate = true;
+    break;
+  case AUTHENTICATION_MUST_PROXY:
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication needed");
+    needs_authenticate = true;
+    break;
+  case AUTHENTICATION_CACHE_AUTH:
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication needed for cache_auth_content");
+    needs_authenticate = false;
+    needs_cache_auth = true;
+    break;
+  default:
+    ink_assert(!("AuthenticationNeeded has returned unsupported code."));
+    return true;
+    break;
+  }
+
+  ink_assert(s->cache_lookup_result == CACHE_LOOKUP_HIT_FRESH ||
+             s->cache_lookup_result == CACHE_LOOKUP_HIT_WARNING || s->cache_lookup_result == CACHE_LOOKUP_HIT_STALE);
+  if (s->cache_lookup_result == CACHE_LOOKUP_HIT_STALE &&
+      s->api_update_cached_object != HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE) {
+    needs_revalidate = true;
+  } else
+    needs_revalidate = false;
+
+
+  bool
+    send_revalidate = ((needs_authenticate == true) ||
+                       (needs_revalidate == true) || (is_cache_response_returnable(s) == false));
+  if (needs_cache_auth == true) {
+    s->www_auth_content = send_revalidate ? CACHE_AUTH_STALE : CACHE_AUTH_FRESH;
+    send_revalidate = true;
+  }
+  return send_revalidate;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleCacheOpenReadHit
+// Description: handle result of a cache hit
+//
+// Details    :
+//
+// Cache lookup succeeded and resulted in a cache hit. This means
+// that the Accept* and Etags fields also matched. The cache lookup
+// may have resulted in a vector of alternates (since lookup may
+// be based on a url). A different function (SelectFromAlternates)
+// goes through the alternates and finds the best match. That is
+// then returned to this function. The result may not be sent back
+// to the client, still, if the document is not fresh enough, or
+// does not have enough authorization, or if the client wants a
+// reload, etc. that decision will be made in this routine.
+//
+//
+// Possible Next States From Here:
+// - HttpTransact::PROXY_INTERNAL_CACHE_DELETE;
+// - HttpTransact::SM_ACTION_DNS_LOOKUP;
+// - HttpTransact::ORIGIN_SERVER_OPEN;
+// - HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+// - HttpTransact::SERVE_FROM_CACHE;
+// - result of how_to_open_connection()
+//
+//
+// For Range requests, we will decide to do simple tunneling if one of the
+// following conditions hold:
+// - document stale
+// - cached response doesn't have Accept-Ranges and Content-Length
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleCacheOpenReadHit(State* s)
+{
+  bool needs_revalidate, needs_authenticate = false;
+  bool needs_cache_auth = false;
+  bool server_up = true;
+  CacheHTTPInfo *obj;
+
+  if (s->api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE) {
+    obj = &s->cache_info.object_store;
+    ink_assert(obj->valid());
+  } else
+    obj = s->cache_info.object_read;
+
+  // do we have to authenticate with the server before
+  // sending back the cached response to the client?
+  Authentication_t authentication_needed =
+    AuthenticationNeeded(s->txn_conf, &s->hdr_info.client_request, obj->response_get());
+
+  switch (authentication_needed) {
+  case AUTHENTICATION_SUCCESS:
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication not needed");
+    needs_authenticate = false;
+    break;
+  case AUTHENTICATION_MUST_REVALIDATE:
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_METHOD);
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication needed");
+    needs_authenticate = true;
+    break;
+  case AUTHENTICATION_MUST_PROXY:
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication needed");
+    HandleCacheOpenReadMiss(s);
+    return;
+  case AUTHENTICATION_CACHE_AUTH:
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Authentication needed for cache_auth_content");
+    needs_authenticate = false;
+    needs_cache_auth = true;
+    break;
+  default:
+    ink_assert(!("AuthenticationNeeded has returned unsupported code."));
+    break;
+  }
+
+  ink_assert(s->cache_lookup_result == CACHE_LOOKUP_HIT_FRESH ||
+             s->cache_lookup_result == CACHE_LOOKUP_HIT_WARNING ||
+             s->cache_lookup_result == CACHE_LOOKUP_HIT_STALE);
+  if (s->cache_lookup_result == CACHE_LOOKUP_HIT_STALE &&
+      s->api_update_cached_object != HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE) {
+    needs_revalidate = true;
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_EXPIRED);
+  } else
+    needs_revalidate = false;
+
+  // the response may not be directly returnable to the client. there
+  // are several reasons for this: config may force revalidation or
+  // client may have forced a refresh by sending a Pragma:no-cache
+  // or a Cache-Control:no-cache, or the client may have sent a
+  // non-GET/HEAD request for a document that is cached. an example
+  // of a situation for this is when a client sends a DELETE, PUT
+  // or POST request for a url that is cached. except for DELETE,
+  // we may actually want to update the cached copy with the contents
+  // of the PUT/POST, but the easiest, safest and most robust solution
+  // is to simply delete the cached copy (in order to maintain cache
+  // consistency). this is particularly true if the server does not
+  // accept or conditionally accepts the PUT/POST requests.
+  // anyhow, this is an overloaded function and will return false
+  // if the origin server still has to be looked up.
+  bool response_returnable = is_cache_response_returnable(s);
+
+  // do we need to revalidate. in other words if the response
+  // has to be authorized, is stale or can not be returned, do
+  // a revalidate.
+  bool send_revalidate = ((needs_authenticate == true) || (needs_revalidate == true) || (response_returnable == false));
+
+  if (needs_cache_auth == true) {
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_EXPIRED);
+    s->www_auth_content = send_revalidate ? CACHE_AUTH_STALE : CACHE_AUTH_FRESH;
+    send_revalidate = true;
+  }
+
+  DebugTxn("http_trans", "CacheOpenRead --- needs_auth          = %d", needs_authenticate);
+  DebugTxn("http_trans", "CacheOpenRead --- needs_revalidate    = %d", needs_revalidate);
+  DebugTxn("http_trans", "CacheOpenRead --- response_returnable = %d", response_returnable);
+  DebugTxn("http_trans", "CacheOpenRead --- needs_cache_auth    = %d", needs_cache_auth);
+  DebugTxn("http_trans", "CacheOpenRead --- send_revalidate    = %d", send_revalidate);
+  if (send_revalidate) {
+    DebugTxn("http_trans", "CacheOpenRead --- HIT-STALE");
+    s->dns_info.attempts = 0;
+
+    DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Revalidate document with server");
+
+    if (s->http_config_param->icp_enabled && icp_dynamic_enabled && s->http_config_param->stale_icp_enabled &&
+        needs_authenticate == false && needs_cache_auth == false &&
+        !s->hdr_info.client_request.is_pragma_no_cache_set() &&
+        !s->hdr_info.client_request.is_cache_control_set(HTTP_VALUE_NO_CACHE)) {
+      DebugTxn("http_trans", "[HandleCacheOpenReadHit] ICP is configured" " and no no-cache in request; checking ICP for a STALE hit");
+
+      s->stale_icp_lookup = true;
+
+      // we haven't done the ICP lookup yet. The following is to
+      // fake an icp_info to cater for build_request's needs
+      s->icp_info.http_version.set(1, 0);
+      if (!s->txn_conf->keep_alive_enabled_out) {
+        s->icp_info.keep_alive = HTTP_NO_KEEPALIVE;
+      } else {
+        s->icp_info.keep_alive = HTTP_KEEPALIVE;
+      }
+
+      update_current_info(&s->current, &s->icp_info, HttpTransact::ICP_SUGGESTED_HOST, 1);
+    }
+
+    if (s->stale_icp_lookup == false) {
+      find_server_and_update_current_info(s);
+
+      // We do not want to try to revalidate documents if we think
+      //  the server is down due to the something report problem
+      //
+      // Note: we only want to skip origin servers because 1)
+      //  parent proxies have their own negative caching
+      //  scheme & 2) If we skip down parents, every page
+      //  we serve is potentially stale
+      //
+      if (s->current.request_to == ORIGIN_SERVER &&
+          is_server_negative_cached(s) && response_returnable == true &&
+          is_stale_cache_response_returnable(s) == true) {
+        server_up = false;
+        update_current_info(&s->current, NULL, UNDEFINED_LOOKUP, 0);
+        DebugTxn("http_trans", "CacheOpenReadHit - server_down, returning stale document");
+      }
+    }
+
+    if (server_up || s->stale_icp_lookup) {
+      if (!s->stale_icp_lookup && !ats_is_ip(&s->current.server->addr)) {
+//        ink_release_assert(s->current.request_to == PARENT_PROXY ||
+//                    s->http_config_param->no_dns_forward_to_parent != 0);
+
+        // Set ourselves up to handle pending revalidate issues
+        //  after the PP DNS lookup
+        ink_assert(s->pending_work == NULL);
+        s->pending_work = issue_revalidate;
+
+        // We must be going a PARENT PROXY since so did
+        //  origin server DNS lookup right after state Start
+        //
+        // If we end up here in the release case just fall
+        //  through.  The request will fail because of the
+        //  missing ip but we won't take down the system
+        //
+        if (s->current.request_to == PARENT_PROXY) {
+          TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, PPDNSLookup);
+        } else if (s->current.request_to == ORIGIN_SERVER) {
+          TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);
+        } else {
+          handle_parent_died(s);
+          return;
+        }
+      }
+
+      build_request(s, &s->hdr_info.client_request, &s->hdr_info.server_request, s->current.server->http_version);
+
+      issue_revalidate(s);
+
+      // this can not be anything but a simple origin server connection.
+      // in other words, we would not have looked up the cache for a
+      // connect request, so the next action can not be origin_server_raw_open.
+      s->next_action = how_to_open_connection(s);
+      if (s->stale_icp_lookup && s->next_action == SM_ACTION_ORIGIN_SERVER_OPEN) {
+        s->next_action = SM_ACTION_ICP_QUERY;
+      }
+
+      ink_release_assert(s->next_action != SM_ACTION_ORIGIN_SERVER_RAW_OPEN);
+      return;
+    } else {                    // server is down but stale response is returnable
+      SET_VIA_STRING(VIA_DETAIL_CACHE_TYPE, VIA_DETAIL_CACHE);
+    }
+  }
+  // cache hit, document is fresh, does not authorization,
+  // is valid, etc. etc. send it back to the client.
+  //
+  // the important thing to keep in mind is that if we are
+  // here then we found a match in the cache and the document
+  // is fresh and we have enough authorization for it to send
+  // it back to the client without revalidating first with the
+  // origin server. we are, therefore, allowed to behave as the
+  // origin server. we can, therefore, make the claim that the
+  // document has not been modified since or has not been unmodified
+  // since the time requested by the client. this may not be
+  // the case in reality, but since the document is fresh in
+  // the cache, we can make the claim that this is the truth.
+  //
+  // so, any decision we make at this point can be made with authority.
+  // realistically, if we can not make this claim, then there
+  // is no reason to cache anything.
+  //
+  ink_assert((send_revalidate == true && server_up == false) || (send_revalidate == false && server_up == true));
+
+  DebugTxn("http_trans", "CacheOpenRead --- HIT-FRESH");
+  DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] " "Serve from cache");
+
+  if (s->cache_info.is_ram_cache_hit) {
+    SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_RAM_CACHE_FRESH);
+  } else {
+    SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_CACHE_FRESH);
+  }
+
+  if (s->cache_lookup_result == CACHE_LOOKUP_HIT_WARNING) {
+    build_response_from_cache(s, HTTP_WARNING_CODE_HERUISTIC_EXPIRATION);
+  } else if (s->cache_lookup_result == CACHE_LOOKUP_HIT_STALE) {
+    ink_assert(server_up == false);
+    build_response_from_cache(s, HTTP_WARNING_CODE_REVALIDATION_FAILED);
+  } else {
+    build_response_from_cache(s, HTTP_WARNING_CODE_NONE);
+  }
+
+  if (s->api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE) {
+    s->saved_update_next_action = s->next_action;
+    s->saved_update_cache_action = s->cache_info.action;
+    s->next_action = SM_ACTION_CACHE_PREPARE_UPDATE;
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : build_response_from_cache()
+// Description: build a client response from cached response and client request
+//
+// Input      : State, warning code to be inserted into the response header
+// Output     :
+//
+// Details    : This function is called if we decided to serve a client request
+//              using a cached response.
+//              It is called by handle_server_connection_not_open()
+//              and HandleCacheOpenReadHit().
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::build_response_from_cache(State* s, HTTPWarningCode warning_code)
+{
+  HTTPHdr *client_request = &s->hdr_info.client_request;
+  HTTPHdr *cached_response = NULL;
+  HTTPHdr *to_warn = &s->hdr_info.client_response;
+  CacheHTTPInfo *obj;
+
+  if (s->api_update_cached_object == HttpTransact::UPDATE_CACHED_OBJECT_CONTINUE) {
+    obj = &s->cache_info.object_store;
+    ink_assert(obj->valid());
+  } else
+    obj = s->cache_info.object_read;
+  cached_response = obj->response_get();
+
+  // If the client request is conditional, and the cached copy meets
+  // the conditions, do not need to send back the full document,
+  // just a NOT_MODIFIED response.
+  // If the request is not conditional,
+  // the function match_response_to_request_conditionals() returns
+  // the code of the cached response, which means that we should send
+  // back the full document.
+  HTTPStatus client_response_code =
+    HttpTransactCache::match_response_to_request_conditionals(client_request, cached_response);
+
+  switch (client_response_code) {
+  case HTTP_STATUS_NOT_MODIFIED:
+    // A IMS or INM GET client request with conditions being met
+    // by the cached response.  Send back a NOT MODIFIED response.
+    DebugTxn("http_trans", "[build_response_from_cache] Not modified");
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_HIT_CONDITIONAL);
+
+    build_response(s, cached_response, &s->hdr_info.client_response, s->client_info.http_version, client_response_code);
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+    break;
+
+  case HTTP_STATUS_PRECONDITION_FAILED:
+    // A conditional request with conditions not being met by the cached
+    // response.  Send back a PRECONDITION FAILED response.
+    DebugTxn("http_trans", "[build_response_from_cache] Precondition Failed");
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_CONDITIONAL);
+
+    build_response(s, &s->hdr_info.client_response, s->client_info.http_version, client_response_code);
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+    break;
+
+  case HTTP_STATUS_RANGE_NOT_SATISFIABLE:
+    // Check if cached response supports Range. If it does, append
+    // Range transformation plugin
+    // A little misnomer. HTTP_STATUS_RANGE_NOT_SATISFIABLE
+    // acutally means If-Range match fails here.
+    // fall through
+  default:
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_HIT_SERVED);
+    if (s->method == HTTP_WKSIDX_GET || s->api_resp_cacheable == true) {
+      // send back the full document to the client.
+      DebugTxn("http_trans", "[build_response_from_cache] Match! Serving full document.");
+      s->cache_info.action = CACHE_DO_SERVE;
+
+      // Check if cached response supports Range. If it does, append
+      // Range transformation plugin
+      // only if the cached response is a 200 OK
+      if (client_response_code == HTTP_STATUS_OK && client_request->presence(MIME_PRESENCE_RANGE)) {
+        s->state_machine->do_range_setup_if_necessary();
+        if (s->range_setup == RANGE_NOT_SATISFIABLE) {
+          build_error_response(s, HTTP_STATUS_RANGE_NOT_SATISFIABLE, "Requested Range Not Satisfiable", "default", NULL);
+          s->cache_info.action = CACHE_DO_NO_ACTION;
+          s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+          break;
+        } else if (s->range_setup == RANGE_NOT_HANDLED) {
+          // we switch to tunneling for Range requests if it is out of order.
+          // In that case we fetch the entire source so it's OK to switch
+          // this late.
+          DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadHit] Out-of-order Range request - tunneling");
+          s->cache_info.action = CACHE_DO_NO_ACTION;
+          if (s->force_dns) {
+            HandleCacheOpenReadMiss(s); // DNS is already completed no need of doing DNS
+          } else {
+            TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);   // DNS not done before need to be done now as we are connecting to OS
+          }
+          return;
+        }
+      }
+
+      if (s->state_machine->do_transform_open()) {
+        set_header_for_transform(s, cached_response);
+        to_warn = &s->hdr_info.transform_response;
+      } else {
+        build_response(s, cached_response, &s->hdr_info.client_response, s->client_info.http_version);
+      }
+      s->next_action = SM_ACTION_SERVE_FROM_CACHE;
+    }
+    // If the client request is a HEAD, then serve the header from cache.
+    else if (s->method == HTTP_WKSIDX_HEAD) {
+      DebugTxn("http_trans", "[build_response_from_cache] Match! Serving header only.");
+
+      build_response(s, cached_response, &s->hdr_info.client_response, s->client_info.http_version);
+      s->cache_info.action = CACHE_DO_NO_ACTION;
+      s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+    } else {
+      // We handled the request but it's not GET or HEAD (eg. DELETE),
+      // and server is not reacheable: 502
+      //
+      DebugTxn("http_trans", "[build_response_from_cache] No match! Connection failed.");
+      build_error_response(s, HTTP_STATUS_BAD_GATEWAY, "Connection Failed", "connect#failed_connect", NULL);
+      s->cache_info.action = CACHE_DO_NO_ACTION;
+      s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+      warning_code = HTTP_WARNING_CODE_NONE;
+    }
+    break;
+  }
+
+  // After building the client response, add the given warning if provided.
+  if (warning_code != HTTP_WARNING_CODE_NONE) {
+    delete_warning_value(to_warn, warning_code);
+    HttpTransactHeaders::insert_warning_header(s->http_config_param, to_warn, warning_code);
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_cache_write_lock
+// Description:
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+// - result of how_to_open_connection
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_cache_write_lock(State* s)
+{
+  bool remove_ims = false;
+
+  ink_assert(s->cache_info.action == CACHE_PREPARE_TO_DELETE ||
+             s->cache_info.action == CACHE_PREPARE_TO_UPDATE || s->cache_info.action == CACHE_PREPARE_TO_WRITE);
+
+  switch (s->cache_info.write_lock_state) {
+  case CACHE_WL_SUCCESS:
+    // We were able to get the lock for the URL vector in the cache
+    SET_UNPREPARE_CACHE_ACTION(s->cache_info);
+    break;
+  case CACHE_WL_FAIL:
+    // No write lock, ignore the cache and proxy only;
+    // FIX: Should just serve from cache if this is a revalidate
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->cache_info.write_status = CACHE_WRITE_LOCK_MISS;
+    remove_ims = true;
+    break;
+  case CACHE_WL_READ_RETRY:
+    //  Write failed but retried and got a vector to read
+    //  We need to clean up our state so that transact does
+    //  not assert later on.  Then handle the open read hit
+    //
+    s->request_sent_time = UNDEFINED_TIME;
+    s->response_received_time = UNDEFINED_TIME;
+    s->cache_info.action = CACHE_DO_LOOKUP;
+    remove_ims = true;
+    SET_VIA_STRING(VIA_DETAIL_CACHE_TYPE, VIA_DETAIL_CACHE);
+    break;
+  case CACHE_WL_INIT:
+  default:
+    ink_release_assert(0);
+    break;
+  }
+
+  // Since we've already built the server request and we can't get the write
+  //  lock we need to remove the ims field from the request since we're
+  //  ignoring the cache.  If their is a client ims field, copy that since
+  //  we're tunneling response anyway
+  if (remove_ims) {
+    s->hdr_info.server_request.field_delete(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE);
+    s->hdr_info.server_request.field_delete(MIME_FIELD_IF_NONE_MATCH, MIME_LEN_IF_NONE_MATCH);
+    MIMEField *c_ims = s->hdr_info.client_request.field_find(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE);
+    MIMEField *c_inm = s->hdr_info.client_request.field_find(MIME_FIELD_IF_NONE_MATCH, MIME_LEN_IF_NONE_MATCH);
+
+    if (c_ims) {
+      int len;
+      const char *value = c_ims->value_get(&len);
+      s->hdr_info.server_request.value_set(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE, value, len);
+    }
+    if (c_inm) {
+      int len;
+      const char *value = c_inm->value_get(&len);
+      s->hdr_info.server_request.value_set(MIME_FIELD_IF_NONE_MATCH, MIME_LEN_IF_NONE_MATCH, value, len);
+    }
+  }
+
+  if (s->cache_info.write_lock_state == CACHE_WL_READ_RETRY) {
+    s->hdr_info.server_request.destroy();
+    HandleCacheOpenReadHitFreshness(s);
+  } else {
+    StateMachineAction_t next;
+    if (s->stale_icp_lookup == false) {
+      next = how_to_open_connection(s);
+      if (next == SM_ACTION_ORIGIN_SERVER_OPEN || next == SM_ACTION_ORIGIN_SERVER_RAW_OPEN) {
+        s->next_action = next;
+        TRANSACT_RETURN(next, NULL);
+      } else {
+        // hehe!
+        s->next_action = next;
+        ink_assert(s->next_action == SM_ACTION_DNS_LOOKUP);
+        return;
+      }
+    } else {
+      next = SM_ACTION_ICP_QUERY;
+    }
+
+    TRANSACT_RETURN(next, NULL);
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleCacheOpenReadMiss
+// Description: cache looked up, miss or hit, but needs authorization
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+// - HttpTransact::ICP_QUERY;
+// - HttpTransact::SM_ACTION_DNS_LOOKUP;
+// - HttpTransact::ORIGIN_SERVER_OPEN;
+// - HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+// - result of how_to_open_connection()
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleCacheOpenReadMiss(State* s)
+{
+  DebugTxn("http_trans", "[HandleCacheOpenReadMiss] --- MISS");
+  DebugTxn("http_seq", "[HttpTransact::HandleCacheOpenReadMiss] " "Miss in cache");
+
+  if (delete_all_document_alternates_and_return(s, false)) {
+    DebugTxn("http_trans", "[HandleCacheOpenReadMiss] Delete and return");
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+    return;
+  }
+  // reinitialize some variables to reflect cache miss state.
+  s->cache_info.object_read = NULL;
+  s->request_sent_time = UNDEFINED_TIME;
+  s->response_received_time = UNDEFINED_TIME;
+  SET_VIA_STRING(VIA_CACHE_RESULT, VIA_CACHE_MISS);
+  if (GET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP) == ' ') {
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_NOT_CACHED);
+  }
+  // We do a cache lookup for DELETE and PUT requests as well.
+  // We must, however, not cache the responses to these requests.
+  if (does_method_require_cache_copy_deletion(s->method) && s->api_req_cacheable == false) {
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+  } else if ((s->hdr_info.client_request.presence(MIME_PRESENCE_RANGE) && !s->txn_conf->cache_range_write) ||
+             s->range_setup == RANGE_NOT_SATISFIABLE || s->range_setup == RANGE_NOT_HANDLED) {
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+  } else {
+    s->cache_info.action = CACHE_PREPARE_TO_WRITE;
+  }
+
+  // We should not issue an ICP lookup if the request has a
+  // no-cache header. First check if the request has a no
+  // cache header. Then, if icp is enabled and the request
+  // does not have a no-cache header, issue an icp lookup.
+
+  // does the request have a no-cache?
+  bool no_cache_in_request = false;
+
+  if (s->hdr_info.client_request.is_pragma_no_cache_set() ||
+      s->hdr_info.client_request.is_cache_control_set(HTTP_VALUE_NO_CACHE)) {
+    no_cache_in_request = true;
+  }
+  // if ICP is enabled and above test indicates that request
+  // does not have a no-cache, issue icp query to sibling cache.
+  if (s->http_config_param->icp_enabled && icp_dynamic_enabled != 0 && (no_cache_in_request == false)) {
+    DebugTxn("http_trans", "[HandleCacheOpenReadMiss] " "ICP is configured and no no-cache in request; checking ICP");
+    s->next_action = SM_ACTION_ICP_QUERY;
+    return;
+  }
+  ///////////////////////////////////////////////////////////////
+  // a normal miss would try to fetch the document from the    //
+  // origin server, unless the origin server isn't resolvable, //
+  // but if "CacheControl: only-if-cached" is set, then we are //
+  // supposed to send a 504 (GATEWAY TIMEOUT) response.        //
+  ///////////////////////////////////////////////////////////////
+
+  HTTPHdr *h = &s->hdr_info.client_request;
+
+  if (!h->is_cache_control_set(HTTP_VALUE_ONLY_IF_CACHED)) {
+    find_server_and_update_current_info(s);
+    if (!ats_is_ip(&s->current.server->addr)) {
+      ink_release_assert(s->current.request_to == PARENT_PROXY ||
+                  s->http_config_param->no_dns_forward_to_parent != 0);
+      if (s->current.request_to == PARENT_PROXY) {
+        TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, HttpTransact::PPDNSLookup);
+      } else {
+        handle_parent_died(s);
+        return;
+      }
+    }
+    build_request(s, &s->hdr_info.client_request, &s->hdr_info.server_request, s->current.server->http_version);
+
+    s->next_action = how_to_open_connection(s);
+  } else {                      // miss, but only-if-cached is set
+    build_error_response(s, HTTP_STATUS_GATEWAY_TIMEOUT, "Not Cached", "cache#not_in_cache", NULL);
+    s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+  }
+
+  return;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleICPLookup
+// Description:
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+// - HttpTransact::SM_ACTION_DNS_LOOKUP;
+// - HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+// - result of how_to_open_connection()
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleICPLookup(State* s)
+{
+  SET_VIA_STRING(VIA_DETAIL_CACHE_TYPE, VIA_DETAIL_ICP);
+  if (s->icp_lookup_success == true) {
+    HTTP_INCREMENT_TRANS_STAT(http_icp_suggested_lookups_stat);
+    DebugTxn("http_trans", "[HandleICPLookup] Success, sending request to icp suggested host.");
+    ats_ip4_set(&s->icp_info.addr, s->icp_ip_result.sin_addr.s_addr);
+    s->icp_info.port = ntohs(s->icp_ip_result.sin_port);
+
+    // TODO in this case we should go to the miss case
+    // just a little shy about using goto's, that's all.
+    ink_release_assert(
+        (s->icp_info.port != s->client_info.port) || 
+        (ats_ip_addr_cmp(&s->icp_info.addr.sa, &Machine::instance()->ip.sa) != 0)
+    );        
+
+    // Since the ICPDNSLookup is not called, these two
+    //   values are not initialized.
+    // Force them to be initialized
+    s->icp_info.http_version.set(1, 0);
+    if (!s->txn_conf->keep_alive_enabled_out) {
+      s->icp_info.keep_alive = HTTP_NO_KEEPALIVE;
+    } else {
+      s->icp_info.keep_alive = HTTP_KEEPALIVE;
+    }
+
+    s->icp_info.name = (char *) s->arena.alloc(17);
+    unsigned char *p = (unsigned char *) &s->icp_ip_result.sin_addr.s_addr;
+    snprintf(s->icp_info.name, 17, "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
+
+    update_current_info(&s->current, &s->icp_info, ICP_SUGGESTED_HOST, 1);
+    s->next_hop_scheme = URL_WKSIDX_HTTP;
+  } else {
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_NOT_CACHED);
+    DebugTxn("http_trans", "[HandleICPLookup] Failure, sending request to forward server.");
+    s->parent_info.name = NULL;
+    ink_zero(s->parent_info.addr);
+
+    find_server_and_update_current_info(s);
+    if (!ats_is_ip(&s->current.server->addr)) {
+      if (s->current.request_to == PARENT_PROXY) {
+        TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, PPDNSLookup);
+      } else {
+        ink_release_assert(0);
+      }
+      return;
+    }
+  }
+  if (!s->stale_icp_lookup) {
+    build_request(s, &s->hdr_info.client_request, &s->hdr_info.server_request, s->current.server->http_version);
+  } else {
+    ink_assert(s->hdr_info.server_request.valid());
+    s->stale_icp_lookup = false;
+  }
+  s->next_action = how_to_open_connection(s);
+
+  return;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : OriginServerRawOpen
+// Description: called for ssl tunneling
+//
+// Details    :
+//
+// when the method is CONNECT, we open a raw connection to the origin
+// server. if the open succeeds, then do ssl tunneling from the client
+// to the host.
+//
+//
+// Possible Next States From Here:
+// - HttpTransact::PROXY_INTERNAL_CACHE_NOOP;
+// - HttpTransact::SSL_TUNNEL;
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::OriginServerRawOpen(State* s)
+{
+  DebugTxn("http_trans", "[HttpTransact::OriginServerRawOpen]");
+
+  switch (s->current.state) {
+  case STATE_UNDEFINED:
+    /* fall through */
+  case OPEN_RAW_ERROR:
+    /* fall through */
+  case CONNECTION_ERROR:
+    /* fall through */
+  case CONNECTION_CLOSED:
+    /* fall through */
+  case CONGEST_CONTROL_CONGESTED_ON_F:
+    /* fall through */
+  case CONGEST_CONTROL_CONGESTED_ON_M:
+    handle_server_died(s);
+
+    ink_assert(s->cache_info.action == CACHE_DO_NO_ACTION);
+    s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+    break;
+  case CONNECTION_ALIVE:
+    build_response(s, &s->hdr_info.client_response, s->client_info.http_version, HTTP_STATUS_OK);
+
+    DebugTxn("http_trans", "[OriginServerRawOpen] connection alive. next action is ssl_tunnel");
+    s->next_action = SM_ACTION_SSL_TUNNEL;
+    break;
+  default:
+    ink_assert(!("s->current.state is set to something unsupported"));
+    break;
+  }
+
+  return;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleResponse
+// Description: called from the state machine when a response is received
+//
+// Details    :
+//
+//   This is the entry into a coin-sorting machine. There are many different
+//   bins that the response can fall into. First, the response can be invalid
+//   if for example it is not a response, or not complete, or the connection
+//   was closed, etc. Then, the response can be from an icp-suggested-host,
+//   from a parent proxy or from the origin server. The next action to take
+//   differs for all three of these cases. Finally, good responses can either
+//   require a cache action, be it deletion, update, or writing or may just
+//   need to be tunnelled to the client. This latter case should be handled
+//   with as little processing as possible, since it should represent a fast
+//   path.
+//
+//
+// Possible Next States From Here:
+//
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleResponse(State* s)
+{
+  DebugTxn("http_trans", "[HttpTransact::HandleResponse]");
+  DebugTxn("http_seq", "[HttpTransact::HandleResponse] Response received");
+
+  s->source = SOURCE_HTTP_ORIGIN_SERVER;
+  s->response_received_time = ink_cluster_time();
+  ink_assert(s->response_received_time >= s->request_sent_time);
+  s->current.now = s->response_received_time;
+
+  DebugTxn("http_trans", "[HandleResponse] response_received_time: %" PRId64, (int64_t)s->response_received_time);
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", &s->hdr_info.server_response, s->state_machine_id, "Incoming O.S. Response");
+
+  HTTP_INCREMENT_TRANS_STAT(http_incoming_responses_stat);
+
+  ink_release_assert(s->current.request_to != UNDEFINED_LOOKUP);
+  if (s->cache_info.action != CACHE_DO_WRITE) {
+    ink_release_assert(s->cache_info.action != CACHE_DO_LOOKUP);
+    ink_release_assert(s->cache_info.action != CACHE_DO_SERVE);
+    ink_release_assert(s->cache_info.action != CACHE_PREPARE_TO_DELETE);
+    ink_release_assert(s->cache_info.action != CACHE_PREPARE_TO_UPDATE);
+    ink_release_assert(s->cache_info.action != CACHE_PREPARE_TO_WRITE);
+  }
+
+  if (!is_response_valid(s, &s->hdr_info.server_response)) {
+    DebugTxn("http_seq", "[HttpTransact::HandleResponse] Response not valid");
+  } else {
+    DebugTxn("http_seq", "[HttpTransact::HandleResponse] Response valid");
+    initialize_state_variables_from_response(s, &s->hdr_info.server_response);
+  }
+
+  switch (s->current.request_to) {
+  case ICP_SUGGESTED_HOST:
+    handle_response_from_icp_suggested_host(s);
+    break;
+  case PARENT_PROXY:
+    handle_response_from_parent(s);
+    break;
+  case ORIGIN_SERVER:
+    handle_response_from_server(s);
+    break;
+  default:
+    ink_assert(!("s->current.request_to is not ICP, P.P. or O.S. - hmmm."));
+    break;
+  }
+
+  return;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleUpdateCachedObject
+// Description: called from the state machine when we are going to modify
+//              headers without any server contact.
+//
+// Details    : this function does very little. mainly to satisfy
+//              the call_transact_and_set_next format and not affect
+//              the performance of the non-invalidate operations, which
+//              are the majority
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleUpdateCachedObject(State* s)
+{
+  if (s->cache_info.write_lock_state == HttpTransact::CACHE_WL_SUCCESS) {
+    ink_assert(s->cache_info.object_store.valid());
+    ink_assert(s->cache_info.object_store.response_get() != NULL);
+    ink_assert(s->cache_info.object_read != NULL);
+    ink_assert(s->cache_info.object_read->valid());
+
+    if (!s->cache_info.object_store.request_get())
+      s->cache_info.object_store.request_set(s->cache_info.object_read->request_get());
+    s->request_sent_time = s->cache_info.object_read->request_sent_time_get();
+    s->response_received_time = s->cache_info.object_read->response_received_time_get();
+    if (s->api_update_cached_object == UPDATE_CACHED_OBJECT_CONTINUE) {
+      TRANSACT_RETURN(SM_ACTION_CACHE_ISSUE_UPDATE, HttpTransact::HandleUpdateCachedObjectContinue);
+    } else {
+      TRANSACT_RETURN(SM_ACTION_CACHE_ISSUE_UPDATE, HttpTransact::HandleApiErrorJump);
+    }
+  } else if (s->api_update_cached_object == UPDATE_CACHED_OBJECT_CONTINUE) {
+    // even failed to update, continue to serve from cache
+    HandleUpdateCachedObjectContinue(s);
+  } else {
+    s->api_update_cached_object = UPDATE_CACHED_OBJECT_FAIL;
+    HandleApiErrorJump(s);
+  }
+}
+
+void
+HttpTransact::HandleUpdateCachedObjectContinue(State* s)
+{
+  ink_assert(s->api_update_cached_object == UPDATE_CACHED_OBJECT_CONTINUE);
+  s->cache_info.action = s->saved_update_cache_action;
+  s->next_action = s->saved_update_next_action;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : HandleStatPage
+// Description: called from the state machine when a response is received
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::HandleStatPage(State* s)
+{
+  HTTPStatus status;
+
+  if (s->internal_msg_buffer) {
+    status = HTTP_STATUS_OK;
+  } else {
+    status = HTTP_STATUS_BAD_REQUEST;
+  }
+
+  build_response(s, &s->hdr_info.client_response, s->client_info.http_version, status);
+
+  ///////////////////////////
+  // insert content-length //
+  ///////////////////////////
+  s->hdr_info.client_response.set_content_length(s->internal_msg_buffer_size);
+
+  if (s->internal_msg_buffer_type) {
+    int len = strlen(s->internal_msg_buffer_type);
+
+    if (len > 0) {
+      s->hdr_info.client_response.value_set(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE,
+                                            s->internal_msg_buffer_type, len);
+    }
+  } else {
+    s->hdr_info.client_response.value_set(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE,
+                                          "text/plain", 9);
+  }
+
+  s->cache_info.action = CACHE_DO_NO_ACTION;
+  s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_response_from_icp_suggested_host
+// Description: response came from the host suggested by the icp lookup
+//
+// Details    :
+//
+//   If the response was bad (for whatever reason), may try to open a
+//   connection with a parent proxy, if there are any, else the request
+//   should be sent to the client.
+//   If the response is good, handle_forward_server_connection_open is
+//   called.
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_response_from_icp_suggested_host(State* s)
+{
+  DebugTxn("http_trans", "[handle_response_from_icp_suggested_host] (hrfish)");
+  HTTP_RELEASE_ASSERT(s->current.server == &s->icp_info);
+
+  s->icp_info.state = s->current.state;
+  switch (s->current.state) {
+  case CONNECTION_ALIVE:
+    DebugTxn("http_trans", "[hrfish] connection alive");
+    SET_VIA_STRING(VIA_DETAIL_ICP_CONNECT, VIA_DETAIL_ICP_SUCCESS);
+    handle_forward_server_connection_open(s);
+    break;
+  default:
+    DebugTxn("http_trans", "[hrfish] connection not alive");
+    SET_VIA_STRING(VIA_DETAIL_ICP_CONNECT, VIA_DETAIL_ICP_FAILURE);
+
+    // If the request is not retryable, bail
+    if (is_request_retryable(s) == false) {
+      handle_server_died(s);
+      return;
+    }
+    // send request to parent proxy now if there is
+    // one or else directly to the origin server.
+    find_server_and_update_current_info(s);
+    if (!ats_is_ip(&s->current.server->addr)) {
+      if (s->current.request_to == PARENT_PROXY) {
+        TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, PPDNSLookup);
+      } else {
+        ink_release_assert(0);
+      }
+      return;
+    }
+    ink_assert(&s->hdr_info.server_request);
+    s->next_action = how_to_open_connection(s);
+    if (s->current.server == &s->server_info && s->next_hop_scheme == URL_WKSIDX_HTTP) {
+      HttpTransactHeaders::remove_host_name_from_url(&s->hdr_info.server_request);
+    }
+    break;
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_response_from_parent
+// Description: response came from a parent proxy
+//
+// Details    :
+//
+//   The configuration file can be used to specify more than one parent
+//   proxy. If a connection to one fails, another can be looked up. This
+//   function handles responses from parent proxies. If the response is
+//   bad the next parent proxy (if any) is looked up. If there are no more
+//   parent proxies that can be looked up, the response is sent to the
+//   origin server. If the response is good handle_forward_server_connection_open
+//   is called, as with handle_response_from_icp_suggested_host.
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_response_from_parent(State* s)
+{
+  DebugTxn("http_trans", "[handle_response_from_parent] (hrfp)");
+  HTTP_RELEASE_ASSERT(s->current.server == &s->parent_info);
+
+  s->parent_info.state = s->current.state;
+  switch (s->current.state) {
+  case CONNECTION_ALIVE:
+    DebugTxn("http_trans", "[hrfp] connection alive");
+    s->current.server->connect_result = 0;
+    SET_VIA_STRING(VIA_DETAIL_PP_CONNECT, VIA_DETAIL_PP_SUCCESS);
+    if (s->parent_result.retry) {
+      s->parent_params->recordRetrySuccess(&s->parent_result);
+    }
+    handle_forward_server_connection_open(s);
+    break;
+  default:
+    {
+      LookingUp_t next_lookup = UNDEFINED_LOOKUP;
+      DebugTxn("http_trans", "[hrfp] connection not alive");
+      SET_VIA_STRING(VIA_DETAIL_PP_CONNECT, VIA_DETAIL_PP_FAILURE);
+
+      ink_assert(s->hdr_info.server_request.valid());
+
+      s->current.server->connect_result = ENOTCONN;
+
+      char addrbuf[INET6_ADDRSTRLEN];
+      DebugTxn("http_trans", "[%d] failed to connect to parent %s", s->current.attempts,
+            ats_ip_ntop(&s->current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+
+      // If the request is not retryable, just give up!
+      if (!is_request_retryable(s)) {
+        s->parent_params->markParentDown(&s->parent_result);
+        s->parent_result.r = PARENT_FAIL;
+        handle_parent_died(s);
+        return;
+      }
+
+      if (s->current.attempts < s->http_config_param->parent_connect_attempts) {
+        s->current.attempts++;
+
+        // Are we done with this particular parent?
+        if ((s->current.attempts - 1) % s->http_config_param->per_parent_connect_attempts != 0) {
+          // No we are not done with this parent so retry
+          s->next_action = how_to_open_connection(s);
+          DebugTxn("http_trans", "%s Retrying parent for attempt %d, max %" PRId64,
+                "[handle_response_from_parent]", s->current.attempts, s->http_config_param->per_parent_connect_attempts);
+          return;
+        } else {
+          DebugTxn("http_trans", "%s %d per parent attempts exhausted",
+                "[handle_response_from_parent]", s->current.attempts);
+
+          // Only mark the parent down if we failed to connect
+          //  to the parent otherwise slow origin servers cause
+          //  us to mark the parent down
+          if (s->current.state == CONNECTION_ERROR) {
+            s->parent_params->markParentDown(&s->parent_result);
+          }
+          // We are done so look for another parent if any
+          next_lookup = find_server_and_update_current_info(s);
+        }
+      } else {
+        // Done trying parents... fail over to origin server if that is
+        //   appropriate
+        DebugTxn("http_trans", "[handle_response_from_parent] Error. No more retries.");
+        s->parent_params->markParentDown(&s->parent_result);
+        s->parent_result.r = PARENT_FAIL;
+        next_lookup = find_server_and_update_current_info(s);
+      }
+
+      // We have either tried to find a new parent or failed over to the
+      //   origin server
+      switch (next_lookup) {
+      case PARENT_PROXY:
+        ink_assert(s->current.request_to == PARENT_PROXY);
+        TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, PPDNSLookup);
+        break;
+      case ORIGIN_SERVER:
+        s->current.attempts = 0;
+        s->next_action = how_to_open_connection(s);
+        if (s->current.server == &s->server_info && s->next_hop_scheme == URL_WKSIDX_HTTP) {
+          HttpTransactHeaders::remove_host_name_from_url(&s->hdr_info.server_request);
+        }
+        break;
+      case HOST_NONE:
+        handle_parent_died(s);
+        break;
+      default:
+        // This handles:
+        // UNDEFINED_LOOKUP, ICP_SUGGESTED_HOST,
+        // INCOMING_ROUTER
+        break;
+      }
+
+      break;
+    }
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_response_from_server
+// Description: response is from the origin server
+//
+// Details    :
+//
+//   response from the origin server. one of three things can happen now.
+//   if the response is bad, then we can either retry (by first downgrading
+//   the request, maybe making it non-keepalive, etc.), or we can give up.
+//   the latter case is handled by handle_server_connection_not_open and
+//   sends an error response back to the client. if the response is good
+//   handle_forward_server_connection_open is called.
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_response_from_server(State* s)
+{
+  DebugTxn("http_trans", "[handle_response_from_server] (hrfs)");
+  HTTP_RELEASE_ASSERT(s->current.server == &s->server_info);
+  int max_connect_retries = 0;
+
+  // plugin call
+  s->server_info.state = s->current.state;
+  if (s->fp_tsremap_os_response) {
+    s->fp_tsremap_os_response(s->remap_plugin_instance, reinterpret_cast<TSHttpTxn>(s->state_machine), s->current.state);
+  }
+
+  switch (s->current.state) {
+  case CONNECTION_ALIVE:
+    DebugTxn("http_trans", "[hrfs] connection alive");
+    SET_VIA_STRING(VIA_DETAIL_SERVER_CONNECT, VIA_DETAIL_SERVER_SUCCESS);
+    s->current.server->clear_connect_fail();
+    handle_forward_server_connection_open(s);
+    break;
+  case CONGEST_CONTROL_CONGESTED_ON_F:
+  case CONGEST_CONTROL_CONGESTED_ON_M:
+    DebugTxn("http_trans", "[handle_response_from_server] Error. congestion control -- congested.");
+    SET_VIA_STRING(VIA_DETAIL_SERVER_CONNECT, VIA_DETAIL_SERVER_FAILURE);
+    s->current.server->set_connect_fail(EUSERS); // too many users
+    handle_server_connection_not_open(s);
+    break;
+  case OPEN_RAW_ERROR:
+    /* fall through */
+  case CONNECTION_ERROR:
+    /* fall through */
+  case STATE_UNDEFINED:
+    /* fall through */
+  case INACTIVE_TIMEOUT:
+    /* fall through */
+  case PARSE_ERROR:
+    /* fall through */
+  case CONNECTION_CLOSED:
+    /* fall through */
+  case BAD_INCOMING_RESPONSE:
+    // Set to generic I/O error if not already set specifically.
+    if (!s->current.server->had_connect_fail())
+      s->current.server->set_connect_fail(EIO);
+
+    if (is_server_negative_cached(s)) {
+      max_connect_retries = s->txn_conf->connect_attempts_max_retries_dead_server;
+    } else {
+      // server not yet negative cached - use default number of retries
+      max_connect_retries = s->txn_conf->connect_attempts_max_retries;
+    }
+    if (s->pCongestionEntry != NULL)
+      max_connect_retries = s->pCongestionEntry->connect_retries();
+
+    if (is_request_retryable(s) && s->current.attempts < max_connect_retries) {
+      // If this is a round robin DNS entry & we're tried configured
+      //    number of times, we should try another node
+      if (DNSLookupInfo::OS_ADDR_TRY_CLIENT == s->dns_info.os_addr_style) {
+        // attempt was based on client supplied server address. Try again
+        // using HostDB.
+        // Allow DNS attempt
+        s->dns_info.lookup_success = false;
+        // See if we can get data from HostDB for this.
+        s->dns_info.os_addr_style = DNSLookupInfo::OS_ADDR_TRY_HOSTDB;
+        // Force host resolution to have the same family as the client.
+        // Because this is a transparent connection, we can't switch address
+        // families - that is locked in by the client source address.
+        s->state_machine->ua_session->host_res_style = ats_host_res_match(&s->current.server->addr.sa);
+        TRANSACT_RETURN(SM_ACTION_DNS_LOOKUP, OSDNSLookup);
+      } else if ((s->dns_info.srv_lookup_success || s->server_info.dns_round_robin) &&
+                 (s->txn_conf->connect_attempts_rr_retries > 0) &&
+                 (s->current.attempts % s->txn_conf->connect_attempts_rr_retries == 0)) {
+        delete_server_rr_entry(s, max_connect_retries);
+        return;
+      } else {
+        retry_server_connection_not_open(s, s->current.state, max_connect_retries);
+        DebugTxn("http_trans", "[handle_response_from_server] Error. Retrying...");
+        s->next_action = how_to_open_connection(s);
+        return;
+      }
+    } else {
+      DebugTxn("http_trans", "[handle_response_from_server] Error. No more retries.");
+      SET_VIA_STRING(VIA_DETAIL_SERVER_CONNECT, VIA_DETAIL_SERVER_FAILURE);
+      handle_server_connection_not_open(s);
+    }
+    break;
+  case ACTIVE_TIMEOUT:
+    DebugTxn("http_trans", "[hrfs] connection not alive");
+    SET_VIA_STRING(VIA_DETAIL_SERVER_CONNECT, VIA_DETAIL_SERVER_FAILURE);
+    s->current.server->set_connect_fail(ETIMEDOUT);
+    handle_server_connection_not_open(s);
+    break;
+  default:
+    ink_assert(!("s->current.state is set to something unsupported"));
+    break;
+  }
+
+  return;
+}
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : delete_server_rr_entry
+// Description:
+//
+// Details    :
+//
+//   connection to server failed mark down the server round robin entry
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::delete_server_rr_entry(State* s, int max_retries)
+{
+  char addrbuf[INET6_ADDRSTRLEN];
+  
+  DebugTxn("http_trans", "[%d] failed to connect to %s", s->current.attempts,
+        ats_ip_ntop(&s->current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+  DebugTxn("http_trans", "[delete_server_rr_entry] marking rr entry " "down and finding next one");
+  ink_assert(s->current.server->had_connect_fail());
+  ink_assert(s->current.request_to == ORIGIN_SERVER);
+  ink_assert(s->current.server == &s->server_info);
+  update_dns_info(&s->dns_info, &s->current, 0, &s->arena);
+  s->current.attempts++;
+  DebugTxn("http_trans", "[delete_server_rr_entry] attempts now: %d, max: %d", s->current.attempts, max_retries);
+  TRANSACT_RETURN(SM_ACTION_ORIGIN_SERVER_RR_MARK_DOWN, ReDNSRoundRobin);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : retry_server_connection_not_open
+// Description:
+//
+// Details    :
+//
+//   connection to server failed. retry.
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::retry_server_connection_not_open(State* s, ServerState_t conn_state, int max_retries)
+{
+  ink_assert(s->current.state != CONNECTION_ALIVE);
+  ink_assert(s->current.state != ACTIVE_TIMEOUT);
+  ink_assert(s->current.attempts <= max_retries);
+  ink_assert(s->current.server->had_connect_fail());
+  char addrbuf[INET6_ADDRSTRLEN];
+
+  char *url_string = s->hdr_info.client_request.url_string_get(&s->arena);
+
+  DebugTxn("http_trans", "[%d] failed to connect [%d] to %s", s->current.attempts, conn_state,
+        ats_ip_ntop(&s->current.server->addr.sa, addrbuf, sizeof(addrbuf)));
+
+  //////////////////////////////////////////
+  // on the first connect attempt failure //
+  // record the failue                   //
+  //////////////////////////////////////////
+  if (0 == s->current.attempts)
+    Log::error("CONNECT:[%d] could not connect [%s] to %s for '%s'",
+     s->current.attempts,
+     HttpDebugNames::get_server_state_name(conn_state),
+     ats_ip_ntop(&s->current.server->addr.sa, addrbuf, sizeof(addrbuf)), url_string ? url_string : "<none>"
+    );
+
+  if (url_string) {
+    s->arena.str_free(url_string);
+  }
+  //////////////////////////////////////////////
+  // disable keep-alive for request and retry //
+  //////////////////////////////////////////////
+  s->current.server->keep_alive = HTTP_NO_KEEPALIVE;
+  s->current.attempts++;
+
+  DebugTxn("http_trans", "[retry_server_connection_not_open] attempts now: %d, max: %d", s->current.attempts, max_retries);
+
+  return;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_server_connection_not_open
+// Description:
+//
+// Details    :
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_server_connection_not_open(State* s)
+{
+  bool serve_from_cache = false;
+
+  DebugTxn("http_trans", "[handle_server_connection_not_open] (hscno)");
+  DebugTxn("http_seq", "[HttpTransact::handle_server_connection_not_open] ");
+  ink_assert(s->current.state != CONNECTION_ALIVE);
+  ink_assert(s->current.server->had_connect_fail());
+
+  SET_VIA_STRING(VIA_SERVER_RESULT, VIA_SERVER_ERROR);
+  HTTP_INCREMENT_TRANS_STAT(http_broken_server_connections_stat);
+
+  // Fire off a hostdb update to mark the server as down
+  s->state_machine->do_hostdb_update_if_necessary();
+
+  switch (s->cache_info.action) {
+  case CACHE_DO_UPDATE:
+    serve_from_cache = is_stale_cache_response_returnable(s);
+    break;
+
+  case CACHE_PREPARE_TO_DELETE:
+    /* fall through */
+  case CACHE_PREPARE_TO_UPDATE:
+    /* fall through */
+  case CACHE_PREPARE_TO_WRITE:
+    ink_release_assert(!"Why still preparing for cache action - " "we skipped a step somehow.");
+    break;
+
+  case CACHE_DO_LOOKUP:
+    /* fall through */
+  case CACHE_DO_SERVE:
+    ink_assert(!("Why server response? Should have been a cache operation"));
+    break;
+
+  case CACHE_DO_DELETE:
+    // decisions, decisions. what should we do here?
+    // we could theoretically still delete the cached
+    // copy or serve it back with a warning, or easier
+    // just punt and biff the user. i say: biff the user.
+    /* fall through */
+  case CACHE_DO_UNDEFINED:
+    /* fall through */
+  case CACHE_DO_NO_ACTION:
+    /* fall through */
+  case CACHE_DO_WRITE:
+    /* fall through */
+  default:
+    serve_from_cache = false;
+    break;
+  }
+
+  if (serve_from_cache) {
+    ink_assert(s->cache_info.object_read != NULL);
+    ink_assert(s->cache_info.action == CACHE_DO_UPDATE);
+    ink_assert(s->internal_msg_buffer == NULL);
+
+    DebugTxn("http_trans", "[hscno] serving stale doc to client");
+    build_response_from_cache(s, HTTP_WARNING_CODE_REVALIDATION_FAILED);
+  } else {
+    handle_server_died(s);
+    s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+  }
+
+  return;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_forward_server_connection_open
+// Description: connection to a forward server is open and good
+//
+// Details    :
+//
+//   "Forward server" includes the icp-suggested-host or the parent proxy
+//   or the origin server. This function first determines if the forward
+//   server uses HTTP 0.9, in which case it simply tunnels the response
+//   to the client. Else, it updates
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_forward_server_connection_open(State* s)
+{
+  DebugTxn("http_trans", "[handle_forward_server_connection_open] (hfsco)");
+  DebugTxn("http_seq", "[HttpTransact::handle_server_connection_open] ");
+  ink_release_assert(s->current.state == CONNECTION_ALIVE);
+
+  if (s->hdr_info.server_response.version_get() == HTTPVersion(0, 9)) {
+    DebugTxn("http_trans", "[hfsco] server sent 0.9 response, reading...");
+    build_response(s, &s->hdr_info.client_response, s->client_info.http_version, HTTP_STATUS_OK, "Connection Established");
+
+    s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->next_action = SM_ACTION_SERVER_READ;
+    return;
+
+  }
+  else if (s->hdr_info.server_response.version_get() == HTTPVersion(1, 0)) {
+    if (s->current.server->http_version == HTTPVersion(0, 9)) {
+      // update_hostdb_to_indicate_server_version_is_1_0
+      s->updated_server_version = HostDBApplicationInfo::HTTP_VERSION_10;
+    } else if (s->current.server->http_version == HTTPVersion(1, 1)) {
+      // update_hostdb_to_indicate_server_version_is_1_0
+      s->updated_server_version = HostDBApplicationInfo::HTTP_VERSION_10;
+    } else {
+      // dont update the hostdb. let us try again with what we currently think.
+    }
+  } else if (s->hdr_info.server_response.version_get() == HTTPVersion(1, 1)) {
+    if (s->current.server->http_version == HTTPVersion(0, 9)) {
+      // update_hostdb_to_indicate_server_version_is_1_1
+      s->updated_server_version = HostDBApplicationInfo::HTTP_VERSION_11;
+    } else if (s->current.server->http_version == HTTPVersion(1, 0)) {
+      // update_hostdb_to_indicate_server_version_is_1_1
+      s->updated_server_version = HostDBApplicationInfo::HTTP_VERSION_11;
+    } else {
+      // dont update the hostdb. let us try again with what we currently think.
+    }
+  } else {
+    // dont update the hostdb. let us try again with what we currently think.
+  }
+
+  if (s->hdr_info.server_response.status_get() == HTTP_STATUS_CONTINUE) {
+    handle_100_continue_response(s);
+    return;
+  }
+
+  s->state_machine->do_hostdb_update_if_necessary();
+
+  if (s->www_auth_content == CACHE_AUTH_FRESH) {
+    // no update is needed - either to serve from cache if authorized,
+    // or tunnnel the server response
+    if (s->hdr_info.server_response.status_get() == HTTP_STATUS_OK) {
+      // borrow a state variable used by the API function
+      // this enable us to serve from cache without doing any updating
+      s->api_server_response_ignore = true;
+    }
+    //s->cache_info.action = CACHE_PREPARE_TO_SERVE;
+    // xing xing in the tunneling case, need to check when the cache_read_vc is closed, make sure the cache_read_vc is closed right away
+  }
+
+  CacheVConnection* cw_vc = s->state_machine->get_cache_sm().cache_write_vc;
+
+  if (s->redirect_info.redirect_in_process && s->state_machine->enable_redirection) {
+    if (s->cache_info.action == CACHE_DO_NO_ACTION) {
+      switch (s->hdr_info.server_response.status_get())
+      {
+      case HTTP_STATUS_MULTIPLE_CHOICES:     //300
+      case HTTP_STATUS_MOVED_PERMANENTLY:    //301
+      case HTTP_STATUS_MOVED_TEMPORARILY:    //302
+      case HTTP_STATUS_SEE_OTHER:            //303
+      case HTTP_STATUS_USE_PROXY:            //305
+      case HTTP_STATUS_TEMPORARY_REDIRECT:   //307
+        break;
+      default:
+        DebugTxn("http_trans", "[hfsco] redirect in progress, non-3xx response, setting cache_do_write");
+        if (cw_vc) s->cache_info.action = CACHE_DO_WRITE;
+        break;
+      }
+    }
+  }
+
+  switch (s->cache_info.action) {
+  case CACHE_DO_WRITE:
+    /* fall through */
+  case CACHE_DO_UPDATE:
+    /* fall through */
+  case CACHE_DO_DELETE:
+    DebugTxn("http_trans", "[hfsco] cache action: %s", HttpDebugNames::get_cache_action_name(s->cache_info.action));
+    handle_cache_operation_on_forward_server_response(s);
+    break;
+  case CACHE_PREPARE_TO_DELETE:
+    /* fall through */
+  case CACHE_PREPARE_TO_UPDATE:
+    /* fall through */
+  case CACHE_PREPARE_TO_WRITE:
+    ink_release_assert(!"Why still preparing for cache action - we skipped a step somehow.");
+    break;
+  case CACHE_DO_LOOKUP:
+    /* fall through */
+  case CACHE_DO_SERVE:
+    ink_assert(!("Why server response? Should have been a cache operation"));
+    break;
+  case CACHE_DO_UNDEFINED:
+    /* fall through */
+  case CACHE_DO_NO_ACTION:
+    /* fall through */
+  default:
+    // Just tunnel?
+    DebugTxn("http_trans", "[hfsco] cache action: %s", HttpDebugNames::get_cache_action_name(s->cache_info.action));
+    handle_no_cache_operation_on_forward_server_response(s);
+    break;
+  }
+
+  return;
+}
+
+// void HttpTransact::handle_100_continue_response(State* s)
+//
+//   We've received a 100 continue response.  Determine if
+//     we should just swallow the response 100 or forward it
+//     the client.  http-1.1-spec-rev-06 section 8.2.3
+//
+void
+HttpTransact::handle_100_continue_response(State* s)
+{
+  bool forward_100 = false;
+
+  HTTPVersion ver = s->hdr_info.client_request.version_get();
+  if (ver == HTTPVersion(1, 1)) {
+    forward_100 = true;
+  } else if (ver == HTTPVersion(1, 0)) {
+    if (s->hdr_info.client_request.value_get_int(MIME_FIELD_EXPECT, MIME_LEN_EXPECT) == 100) {
+      forward_100 = true;
+    }
+  }
+
+  if (forward_100) {
+    // We just want to copy the server's response.  All
+    //   the other build response functions insist on
+    //   adding stuff
+    build_response_copy(s, &s->hdr_info.server_response, &s->hdr_info.client_response, s->client_info.http_version);
+    TRANSACT_RETURN(SM_ACTION_INTERNAL_100_RESPONSE, HandleResponse);
+  } else {
+    TRANSACT_RETURN(SM_ACTION_SERVER_PARSE_NEXT_HDR, HandleResponse);
+  }
+}
+
+// void HttpTransact::build_response_copy
+//
+//   Build a response with minimal changes from the base response
+//
+void
+HttpTransact::build_response_copy(State* s, HTTPHdr* base_response,HTTPHdr* outgoing_response, HTTPVersion outgoing_version)
+{
+  HttpTransactHeaders::copy_header_fields(base_response, outgoing_response, s->txn_conf->fwd_proxy_auth_to_parent,
+                                          s->current.now);
+  HttpTransactHeaders::convert_response(outgoing_version, outgoing_response);   // http version conversion
+  HttpTransactHeaders::add_server_header_to_response(s->txn_conf, outgoing_response);
+
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", outgoing_response, s->state_machine_id, "Proxy's Response");
+}
+
+//////////////////////////////////////////////////////////////////////////
+//   IMS handling table                                                 //
+//       OS = Origin Server                                             //
+//       IMS = A GET request w/ an If-Modified-Since header             //
+//       LMs = Last modified state returned by server                   //
+//       D, D' are Last modified dates returned by the origin server    //
+//          and are later used for IMS                                  //
+//       D < D'                                                         //
+//                                                                      //
+//  +------------------------------------------------------------+      //
+//  | Client's | Cached    | Proxy's  | Response to client       |      //
+//  | Request  |  State    | Request  |  OS 200    |   OS 304    |      //
+//  |------------------------------------------------------------|      //
+//  |  GET     | Fresh     | N/A      |  N/A      |  N/A         |      //
+//  |------------------------------------------------------------|      //
+//  |  GET     | Stale, D' | IMS  D'  | 200, new  | 200, cached  |      //
+//  |------------------------------------------------------------|      //
+//  |  IMS D   | None      | GET      | 200, new *|  N/A         |      //
+//  |------------------------------------------------------------|      //
+//  |  IMS D   | Stale, D' | IMS D'   | 200, new  | Compare      |      //
+//  |---------------------------------------------| LMs & D'     |      //
+//  |  IMS D'  | Stale, D' | IMS D'   | 200, new  | If match, 304|      //
+//  |---------------------------------------------| If no match, |      //
+//  |  IMS D'  | Stale D   | IMS D    | 200, new *|  200, cached |      //
+//  +------------------------------------------------------------+      //
+//                                                                      //
+//  Note: * indicates a case that could be optimized to return          //
+//     304 to the client but currently is not                           //
+//                                                                      //
+//////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_cache_operation_on_forward_server_response
+// Description:
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_cache_operation_on_forward_server_response(State* s)
+{
+  DebugTxn("http_trans", "[handle_cache_operation_on_forward_server_response] (hcoofsr)");
+  DebugTxn("http_seq", "[handle_cache_operation_on_forward_server_response]");
+
+  HTTPHdr *base_response = NULL;
+  HTTPStatus server_response_code = HTTP_STATUS_NONE;
+  HTTPStatus client_response_code = HTTP_STATUS_NONE;
+  const char *warn_text = NULL;
+  bool cacheable = false;
+
+  cacheable = is_response_cacheable(s, &s->hdr_info.client_request, &s->hdr_info.server_response);
+  DebugTxn("http_trans", "[hcoofsr] response %s cacheable", cacheable ? "is" : "is not");
+
+  // set the correct next action, cache action, response code, and base response
+
+  server_response_code = s->hdr_info.server_response.status_get();
+  switch (server_response_code) {
+  case HTTP_STATUS_NOT_MODIFIED:       // 304
+    SET_VIA_STRING(VIA_SERVER_RESULT, VIA_SERVER_NOT_MODIFIED);
+
+    // determine the correct cache action, next state, and response
+    // precondition: s->cache_info.action should be one of the following
+    // CACHE_DO_DELETE, or CACHE_DO_UPDATE; otherwise, it's an error.
+    if (s->api_server_response_ignore && s->cache_info.action == CACHE_DO_UPDATE) {
+      s->api_server_response_ignore = false;
+      ink_assert(s->cache_info.object_read);
+      base_response = s->cache_info.object_read->response_get();
+      s->cache_info.action = CACHE_DO_SERVE;
+      DebugTxn("http_trans", "[hcoofsr] not merging, cache action changed to: %s",
+            HttpDebugNames::get_cache_action_name(s->cache_info.action));
+      s->next_action = SM_ACTION_SERVE_FROM_CACHE;
+      client_response_code = base_response->status_get();
+    } else if ((s->cache_info.action == CACHE_DO_DELETE) || ((s->cache_info.action == CACHE_DO_UPDATE) && !cacheable)) {
+      if (is_request_conditional(&s->hdr_info.client_request)) {
+        client_response_code =
+          HttpTransactCache::match_response_to_request_conditionals(&s->hdr_info.client_request,
+                                                                    s->cache_info.object_read->response_get());
+      } else {
+        client_response_code = HTTP_STATUS_OK;
+      }
+
+      if (client_response_code != HTTP_STATUS_OK) {
+        // we can just forward the not modified response
+        // from the server and delete the cached copy
+        base_response = &s->hdr_info.server_response;
+        client_response_code = base_response->status_get();
+        s->cache_info.action = CACHE_DO_DELETE;
+        s->next_action = SM_ACTION_INTERNAL_CACHE_DELETE;
+      } else {
+        // We got screwed. The client did not send a conditional request,
+        // but we had a cached copy which we revalidated. The server has
+        // now told us to delete the cached copy and sent back a 304.
+        // We need to send the cached copy to the client, then delete it.
+        if (s->method == HTTP_WKSIDX_HEAD) {
+          s->cache_info.action = CACHE_DO_DELETE;
+          s->next_action = SM_ACTION_SERVER_READ;
+        } else {
+          s->cache_info.action = CACHE_DO_SERVE_AND_DELETE;
+          s->next_action = SM_ACTION_SERVE_FROM_CACHE;
+        }
+        base_response = s->cache_info.object_read->response_get();
+        client_response_code = base_response->status_get();
+      }
+
+    } else if (s->cache_info.action == CACHE_DO_UPDATE && is_request_conditional(&s->hdr_info.server_request)) {
+      // CACHE_DO_UPDATE and server response is cacheable
+      if (is_request_conditional(&s->hdr_info.client_request)) {
+        if (s->txn_conf->cache_when_to_revalidate != 4)
+          client_response_code =
+            HttpTransactCache::match_response_to_request_conditionals(&s->hdr_info.client_request,
+                                                                      s->cache_info.object_read->response_get());
+        else
+          client_response_code = server_response_code;
+      } else {
+        client_response_code = HTTP_STATUS_OK;
+      }
+
+      if (client_response_code != HTTP_STATUS_OK) {
+        // delete the cached copy unless configured to always verify IMS
+        if (s->txn_conf->cache_when_to_revalidate != 4) {
+          s->cache_info.action = CACHE_DO_UPDATE;
+          s->next_action = SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS;
+          /* base_response will be set after updating headers below */
+        } else {
+          s->cache_info.action = CACHE_DO_NO_ACTION;
+          s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+          base_response = &s->hdr_info.server_response;
+        }
+      } else {
+        if (s->method == HTTP_WKSIDX_HEAD) {
+          s->cache_info.action = CACHE_DO_UPDATE;
+          s->next_action = SM_ACTION_SERVER_READ;
+        } else {
+          if (s->hdr_info.client_request.presence(MIME_PRESENCE_RANGE)) {
+            s->state_machine->do_range_setup_if_necessary();
+            // Note that even if the Range request is not satisfiable, we
+            // update and serve this cache. This will give a 200 response to
+            // a bad client, but allows us to avoid pegging the origin (e.g. abuse).
+          }
+          s->cache_info.action = CACHE_DO_SERVE_AND_UPDATE;
+          s->next_action = SM_ACTION_SERVE_FROM_CACHE;
+        }
+        /* base_response will be set after updating headers below */
+      }
+
+    } else {                    // cache action != CACHE_DO_DELETE and != CACHE_DO_UPDATE
+
+      // bogus response from server. deal by tunnelling to client.
+      // server should not have sent back a 304 because our request
+      // should not have been an conditional.
+      DebugTxn("http_trans", "[hcoofsr] 304 for non-conditional request");
+      s->cache_info.action = CACHE_DO_NO_ACTION;
+      s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+      client_response_code = s->hdr_info.server_response.status_get();
+      base_response = &s->hdr_info.server_response;
+
+      // since this is bad, insert warning header into client response
+      // The only exception case is conditional client request,
+      // cache miss, and client request being unlikely cacheable.
+      // In this case, the server request is given the same
+      // conditional headers as client request (see build_request()).
+      // So an unexpected 304 might be received.
+      // FIXME: check this case
+      if (is_request_likely_cacheable(s, &s->hdr_info.client_request)) {
+        warn_text = "Proxy received unexpected 304 response; " "content may be stale";
+      }
+    }
+
+    break;
+
+  case HTTP_STATUS_HTTPVER_NOT_SUPPORTED:      // 505
+    {
+      bool keep_alive = (s->current.server->keep_alive == HTTP_KEEPALIVE);
+
+      s->next_action = how_to_open_connection(s);
+
+      /* Downgrade the request level and retry */
+      if (!HttpTransactHeaders::downgrade_request(&keep_alive, &s->hdr_info.server_request)) {
+        build_error_response(s, HTTP_STATUS_HTTPVER_NOT_SUPPORTED, "HTTP Version Not Supported",
+                             "response#bad_version", NULL);
+        s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+        s->already_downgraded = true;
+      } else {
+        if (!keep_alive) {
+          /* START Hack */
+          (s->hdr_info.server_request).field_delete(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION);
+          /* END   Hack */
+        }
+        s->already_downgraded = true;
+        s->next_action = how_to_open_connection(s);
+      }
+    }
+    return;
+
+  default:
+    DebugTxn("http_trans", "[hcoofsr] response code: %d", server_response_code);
+    SET_VIA_STRING(VIA_SERVER_RESULT, VIA_SERVER_SERVED);
+    SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_SERVED);
+
+
+    /* if we receive a 500, 502, 503 or 504 while revalidating
+       a document, treat the response as a 304 and in effect revalidate the document for
+       negative_revalidating_lifetime. (negative revalidating)
+     */
+
+    if ((server_response_code == HTTP_STATUS_INTERNAL_SERVER_ERROR ||
+         server_response_code == HTTP_STATUS_GATEWAY_TIMEOUT ||
+         server_response_code == HTTP_STATUS_BAD_GATEWAY ||
+         server_response_code == HTTP_STATUS_SERVICE_UNAVAILABLE) &&
+        s->cache_info.action == CACHE_DO_UPDATE &&
+        s->txn_conf->negative_revalidating_enabled && is_stale_cache_response_returnable(s)) {
+      DebugTxn("http_trans", "[hcoofsr] negative revalidating: revalidate stale object and serve from cache");
+
+      s->cache_info.object_store.create();
+      s->cache_info.object_store.request_set(&s->hdr_info.client_request);
+      s->cache_info.object_store.response_set(s->cache_info.object_read->response_get());
+      base_response = s->cache_info.object_store.response_get();
+      time_t exp_time = s->txn_conf->negative_revalidating_lifetime + ink_cluster_time();
+      base_response->set_expires(exp_time);
+
+      SET_VIA_STRING(VIA_CACHE_FILL_ACTION, VIA_CACHE_UPDATED);
+      HTTP_INCREMENT_TRANS_STAT(http_cache_updates_stat);
+
+      // unset Cache-control: "need-revalidate-once" (if it's set)
+      // This directive is used internally by T.S. to invalidate
+      // documents so that an invalidated document needs to be
+      // revalidated again.
+      base_response->unset_cooked_cc_need_revalidate_once();
+
+      if (is_request_conditional(&s->hdr_info.client_request) &&
+          HttpTransactCache::match_response_to_request_conditionals(&s->hdr_info.client_request,
+                                                                    s->cache_info.object_read->response_get()) == HTTP_STATUS_NOT_MODIFIED) {
+        s->next_action = SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS;
+        client_response_code = HTTP_STATUS_NOT_MODIFIED;
+      } else {
+        if (s->method == HTTP_WKSIDX_HEAD) {
+          s->cache_info.action = CACHE_DO_UPDATE;
+          s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+        } else {
+          s->cache_info.action = CACHE_DO_SERVE_AND_UPDATE;
+          s->next_action = SM_ACTION_SERVE_FROM_CACHE;
+        }
+
+        client_response_code = s->cache_info.object_read->response_get()->status_get();
+      }
+
+      ink_assert(base_response->valid());
+
+      if (client_response_code == HTTP_STATUS_NOT_MODIFIED) {
+        ink_assert(GET_VIA_STRING(VIA_CLIENT_REQUEST) != VIA_CLIENT_SIMPLE);
+        SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_IMS);
+        SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_NOT_MODIFIED);
+      } else {
+        SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_SERVED);
+      }
+
+      ink_assert(client_response_code != HTTP_STATUS_NONE);
+
+      if (s->next_action == SM_ACTION_SERVE_FROM_CACHE && s->state_machine->do_transform_open()) {
+        set_header_for_transform(s, base_response);
+      } else {
+        build_response(s, base_response, &s->hdr_info.client_response, s->client_info.http_version, client_response_code);
+      }
+
+      return;
+    }
+
+    s->next_action = SM_ACTION_SERVER_READ;
+    client_response_code = server_response_code;
+    base_response = &s->hdr_info.server_response;
+
+    s->negative_caching = is_negative_caching_appropriate(s);
+
+    // determine the correct cache action given the original cache action,
+    // cacheability of server response, and request method
+    // precondition: s->cache_info.action is one of the following
+    // CACHE_DO_UPDATE, CACHE_DO_WRITE, or CACHE_DO_DELETE
+    if (s->api_server_response_no_store) {
+      s->cache_info.action = CACHE_DO_NO_ACTION;
+    } else if (s->api_server_response_ignore &&
+               server_response_code == HTTP_STATUS_OK &&
+               s->hdr_info.server_request.method_get_wksidx() == HTTP_WKSIDX_HEAD) {
+      s->api_server_response_ignore = false;
+      ink_assert(s->cache_info.object_read);
+      base_response = s->cache_info.object_read->response_get();
+      s->cache_info.action = CACHE_DO_SERVE;
+      DebugTxn("http_trans", "[hcoofsr] ignoring server response, "
+            "cache action changed to: %s", HttpDebugNames::get_cache_action_name(s->cache_info.action));
+      s->next_action = SM_ACTION_SERVE_FROM_CACHE;
+      client_response_code = base_response->status_get();
+    } else if (s->cache_info.action == CACHE_DO_UPDATE) {
+      if (s->www_auth_content == CACHE_AUTH_FRESH) {
+        s->cache_info.action = CACHE_DO_NO_ACTION;
+      } else if (s->www_auth_content == CACHE_AUTH_STALE && server_response_code == HTTP_STATUS_UNAUTHORIZED) {
+        s->cache_info.action = CACHE_DO_NO_ACTION;
+      } else if (!cacheable) {
+        s->cache_info.action = CACHE_DO_DELETE;
+      } else if (s->method == HTTP_WKSIDX_HEAD) {
+        s->cache_info.action = CACHE_DO_DELETE;
+      } else {
+        ink_assert(s->cache_info.object_read != 0);
+        s->cache_info.action = CACHE_DO_REPLACE;
+      }
+
+    } else if (s->cache_info.action == CACHE_DO_WRITE) {
+      if (!cacheable && !s->negative_caching) {
+        s->cache_info.action = CACHE_DO_NO_ACTION;
+      } else if (s->method == HTTP_WKSIDX_HEAD) {
+        s->cache_info.action = CACHE_DO_NO_ACTION;
+      } else {
+        s->cache_info.action = CACHE_DO_WRITE;
+      }
+
+    } else if (s->cache_info.action == CACHE_DO_DELETE) {
+      // do nothing
+
+    } else {
+      ink_assert(!("cache action inconsistent with current state"));
+    }
+    // postcondition: s->cache_info.action is one of the following
+    // CACHE_DO_REPLACE, CACHE_DO_WRITE, CACHE_DO_DELETE, or
+    // CACHE_DO_NO_ACTION
+
+    // Check see if we ought to serve the client a 304 based on
+    //   it's IMS date.  We may gotten a 200 back from the origin
+    //   server if our (the proxies's) cached copy was out of date
+    //   but the client's wasn't.  However, if the response is
+    //   not cacheable we ought not issue a 304 to the client so
+    //   make sure we are writing the document to the cache if
+    //   before issuing a 304
+    if (s->cache_info.action == CACHE_DO_WRITE ||
+        s->cache_info.action == CACHE_DO_NO_ACTION || s->cache_info.action == CACHE_DO_REPLACE) {
+      if (s->negative_caching) {
+        HTTPHdr *resp;
+        s->cache_info.object_store.create();
+        s->cache_info.object_store.request_set(&s->hdr_info.client_request);
+        s->cache_info.object_store.response_set(&s->hdr_info.server_response);
+        resp = s->cache_info.object_store.response_get();
+        if (!resp->presence(MIME_PRESENCE_EXPIRES)) {
+          time_t exp_time = s->txn_conf->negative_caching_lifetime + ink_cluster_time();
+
+          resp->set_expires(exp_time);
+        }
+      } else if (is_request_conditional(&s->hdr_info.client_request) && server_response_code == HTTP_STATUS_OK) {
+        DebugTxn("http_trans", "[hcoofsr] conditional request, 200 " "response, send back 304 if possible");
+        client_response_code =
+          HttpTransactCache::match_response_to_request_conditionals(&s->hdr_info.client_request,
+                                                                    &s->hdr_info.server_response);
+
+        if ((client_response_code == HTTP_STATUS_NOT_MODIFIED) || (client_response_code == HTTP_STATUS_PRECONDITION_FAILED)) {
+          switch (s->cache_info.action) {
+          case CACHE_DO_WRITE:
+          case CACHE_DO_REPLACE:
+            s->next_action = SM_ACTION_INTERNAL_CACHE_WRITE;
+            break;
+          case CACHE_DO_DELETE:
+            s->next_action = SM_ACTION_INTERNAL_CACHE_DELETE;
+            break;
+          default:
+            s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+            break;
+          }
+        } else {
+          SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_SERVER_REVALIDATED);
+        }
+      }
+    } else if (s->negative_caching) {
+      s->negative_caching = false;
+    }
+
+    break;
+  }
+
+  // update stat, set via string, etc
+
+  switch (s->cache_info.action) {
+  case CACHE_DO_SERVE_AND_DELETE:
+    // fall through
+  case CACHE_DO_DELETE:
+    DebugTxn("http_trans", "[hcoofsr] delete cached copy");
+    SET_VIA_STRING(VIA_CACHE_FILL_ACTION, VIA_CACHE_DELETED);
+    HTTP_INCREMENT_TRANS_STAT(http_cache_deletes_stat);
+    break;
+  case CACHE_DO_WRITE:
+    DebugTxn("http_trans", "[hcoofsr] cache write");
+    SET_VIA_STRING(VIA_CACHE_FILL_ACTION, VIA_CACHE_WRITTEN);
+    HTTP_INCREMENT_TRANS_STAT(http_cache_writes_stat);
+    break;
+  case CACHE_DO_SERVE_AND_UPDATE:
+    // fall through
+  case CACHE_DO_UPDATE:
+    // fall through
+  case CACHE_DO_REPLACE:
+    DebugTxn("http_trans", "[hcoofsr] cache update/replace");
+    SET_VIA_STRING(VIA_CACHE_FILL_ACTION, VIA_CACHE_UPDATED);
+    HTTP_INCREMENT_TRANS_STAT(http_cache_updates_stat);
+    break;
+  default:
+    break;
+  }
+
+  if ((client_response_code == HTTP_STATUS_NOT_MODIFIED) && (s->cache_info.action != CACHE_DO_NO_ACTION)) {
+    /* ink_assert(GET_VIA_STRING(VIA_CLIENT_REQUEST)
+       != VIA_CLIENT_SIMPLE); */
+    DebugTxn("http_trans", "[hcoofsr] Client request was conditional");
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_IMS);
+    SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_NOT_MODIFIED);
+  } else {
+    SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_SERVED);
+  }
+
+  ink_assert(client_response_code != HTTP_STATUS_NONE);
+
+  // The correct cache action, next action, and response code are set.
+  // Do the real work below.
+
+  // first update the cached object
+  if ((s->cache_info.action == CACHE_DO_UPDATE) || (s->cache_info.action == CACHE_DO_SERVE_AND_UPDATE)) {
+    DebugTxn("http_trans", "[hcoofsr] merge and update cached copy");
+    merge_and_update_headers_for_cache_update(s);
+    base_response = s->cache_info.object_store.response_get();
+    // unset Cache-control: "need-revalidate-once" (if it's set)
+    // This directive is used internally by T.S. to invalidate documents
+    // so that an invalidated document needs to be revalidated again.
+    base_response->unset_cooked_cc_need_revalidate_once();
+    // unset warning revalidation failed header if it set
+    // (potentially added by negative revalidating)
+    delete_warning_value(base_response, HTTP_WARNING_CODE_REVALIDATION_FAILED);
+  }
+  ink_assert(base_response->valid());
+
+  if ((s->cache_info.action == CACHE_DO_WRITE) || (s->cache_info.action == CACHE_DO_REPLACE)) {
+    set_headers_for_cache_write(s, &s->cache_info.object_store, &s->hdr_info.server_request, &s->hdr_info.server_response);
+  }
+  // 304, 412, and 416 responses are handled here
+  if ((client_response_code == HTTP_STATUS_NOT_MODIFIED) || (client_response_code == HTTP_STATUS_PRECONDITION_FAILED)) {
+    // Because we are decoupling User-Agent validation from
+    //  Traffic Server validation just build a regular 304
+    //  if the exception of adding prepending the VIA
+    //  header to show the revalidation path
+    build_response(s, base_response, &s->hdr_info.client_response, s->client_info.http_version, client_response_code);
+
+    // Copy over the response via field (if any) preserving
+    //  the order of the fields
+    MIMEField *resp_via = s->hdr_info.server_response.field_find(MIME_FIELD_VIA, MIME_LEN_VIA);
+    if (resp_via) {
+      MIMEField *our_via;
+      our_via = s->hdr_info.client_response.field_find(MIME_FIELD_VIA, MIME_LEN_VIA);
+      if (our_via == NULL) {
+        our_via = s->hdr_info.client_response.field_create(MIME_FIELD_VIA, MIME_LEN_VIA);
+        s->hdr_info.client_response.field_attach(our_via);
+      }
+      // HDR FIX ME - Mulitple appends are VERY slow
+      while (resp_via) {
+        int clen;
+        const char *cfield = resp_via->value_get(&clen);
+        s->hdr_info.client_response.field_value_append(our_via, cfield, clen, true);
+        resp_via = resp_via->m_next_dup;
+      }
+    }
+    // a warning text is added only in the case of a NOT MODIFIED response
+    if (warn_text) {
+      HttpTransactHeaders::insert_warning_header(s->http_config_param, &s->hdr_info.client_response,
+                                                 HTTP_WARNING_CODE_MISC_WARNING, warn_text, strlen(warn_text));
+    }
+
+    if (!s->cop_test_page)
+      DUMP_HEADER("http_hdrs", &s->hdr_info.client_response, s->state_machine_id, "Proxy's Response (Client Conditionals)");
+    return;
+  }
+  // all other responses (not 304, 412, 416) are handled here
+  else {
+    if (((s->next_action == SM_ACTION_SERVE_FROM_CACHE) ||
+         (s->next_action == SM_ACTION_SERVER_READ)) && s->state_machine->do_transform_open()) {
+      set_header_for_transform(s, base_response);
+    } else {
+      build_response(s, base_response, &s->hdr_info.client_response, s->client_info.http_version, client_response_code);
+    }
+  }
+
+  return;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : handle_no_cache_operation_on_forward_server_response
+// Description:
+//
+// Details    :
+//
+//
+//
+// Possible Next States From Here:
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_no_cache_operation_on_forward_server_response(State* s)
+{
+  DebugTxn("http_trans", "[handle_no_cache_operation_on_forward_server_response] (hncoofsr)");
+  DebugTxn("http_seq", "[handle_no_cache_operation_on_forward_server_response]");
+
+  bool keep_alive = s->current.server->keep_alive == HTTP_KEEPALIVE;
+  const char *warn_text = NULL;
+
+  switch (s->hdr_info.server_response.status_get()) {
+  case HTTP_STATUS_OK:
+    DebugTxn("http_trans", "[hncoofsr] server sent back 200");
+    SET_VIA_STRING(VIA_SERVER_RESULT, VIA_SERVER_SERVED);
+    SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_SERVED);
+    if (s->method == HTTP_WKSIDX_CONNECT) {
+      DebugTxn("http_trans", "[hncoofsr] next action is SSL_TUNNEL");
+      s->next_action = SM_ACTION_SSL_TUNNEL;
+    } else {
+      DebugTxn("http_trans", "[hncoofsr] next action will be OS_READ_CACHE_NOOP");
+
+      ink_assert(s->cache_info.action == CACHE_DO_NO_ACTION);
+      s->next_action = SM_ACTION_SERVER_READ;
+    }
+    if (s->state_machine->redirect_url == NULL) {
+      s->state_machine->enable_redirection = false;
+    }
+    break;
+  case HTTP_STATUS_NOT_MODIFIED:
+    DebugTxn("http_trans", "[hncoofsr] server sent back 304. IMS from client?");
+    SET_VIA_STRING(VIA_SERVER_RESULT, VIA_SERVER_NOT_MODIFIED);
+    SET_VIA_STRING(VIA_PROXY_RESULT, VIA_PROXY_NOT_MODIFIED);
+
+    if (!is_request_conditional(&s->hdr_info.client_request)) {
+      // bogus server response. not a conditional request
+      // from the client and probably not a conditional
+      // request from the proxy.
+
+      // since this is bad, insert warning header into client response
+      warn_text = "Proxy received unexpected 304 response; content may be stale";
+    }
+
+    ink_assert(s->cache_info.action == CACHE_DO_NO_ACTION);
+    s->next_action = SM_ACTION_INTERNAL_CACHE_NOOP;
+    break;
+  case HTTP_STATUS_HTTPVER_NOT_SUPPORTED:
+    s->next_action = how_to_open_connection(s);
+
+    /* Downgrade the request level and retry */
+    if (!HttpTransactHeaders::downgrade_request(&keep_alive, &s->hdr_info.server_request)) {
+      s->already_downgraded = true;
+      build_error_response(s, HTTP_STATUS_HTTPVER_NOT_SUPPORTED, "HTTP Version Not Supported", "response#bad_version",
+                           NULL);
+      s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+    } else {
+      s->already_downgraded = true;
+      s->next_action = how_to_open_connection(s);
+    }
+    return;
+  case HTTP_STATUS_PARTIAL_CONTENT:
+    // If we get this back we should be just passing it through.
+    ink_assert(s->cache_info.action == CACHE_DO_NO_ACTION);
+    s->next_action = SM_ACTION_SERVER_READ;
+    break;
+  default:
+    DebugTxn("http_trans", "[hncoofsr] server sent back something other than 100,304,200");
+    /* Default behavior is to pass-through response to the client */
+
+    ink_assert(s->cache_info.action == CACHE_DO_NO_ACTION);
+    s->next_action = SM_ACTION_SERVER_READ;
+    break;
+  }
+
+  HTTPHdr *to_warn;
+  if (s->next_action == SM_ACTION_SERVER_READ && s->state_machine->do_transform_open()) {
+    set_header_for_transform(s, &s->hdr_info.server_response);
+    to_warn = &s->hdr_info.transform_response;
+  } else {
+    build_response(s, &s->hdr_info.server_response, &s->hdr_info.client_response, s->client_info.http_version);
+    to_warn = &s->hdr_info.server_response;
+  }
+
+  if (warn_text) {
+    HttpTransactHeaders::insert_warning_header(s->http_config_param, to_warn, HTTP_WARNING_CODE_MISC_WARNING,
+                                               warn_text, strlen(warn_text));
+  }
+
+  return;
+}
+
+
+void
+HttpTransact::merge_and_update_headers_for_cache_update(State* s)
+{
+  URL *s_url = NULL;
+  // This is not used.
+  // HTTPHdr * f_resp = NULL;
+
+  if (!s->cache_info.object_store.valid()) {
+    s->cache_info.object_store.create();
+  }
+
+  s->cache_info.object_store.request_set(&s->hdr_info.server_request);
+
+  if (s->redirect_info.redirect_in_process)
+    s_url = &s->redirect_info.original_url;
+  else
+    s_url = &s->cache_info.original_url;
+  ink_assert(s_url != NULL);
+
+  s->cache_info.object_store.request_get()->url_set(s_url->valid()? s_url : s->hdr_info.client_request.url_get());
+
+  if (s->cache_info.object_store.request_get()->method_get_wksidx() == HTTP_WKSIDX_HEAD) {
+    s->cache_info.object_store.request_get()->method_set(HTTP_METHOD_GET, HTTP_LEN_GET);
+  }
+
+  if (s->api_modifiable_cached_resp) {
+    ink_assert(s->cache_info.object_store.response_get() != NULL && s->cache_info.object_store.response_get()->valid());
+    s->api_modifiable_cached_resp = false;
+  } else {
+    s->cache_info.object_store.response_set(s->cache_info.object_read->response_get());
+  }
+
+  merge_response_header_with_cached_header(s->cache_info.object_store.response_get(), &s->hdr_info.server_response);
+
+  // Some special processing for 304
+  //
+  if (s->hdr_info.server_response.status_get() == HTTP_STATUS_NOT_MODIFIED) {
+    // Hack fix. If the server sends back
+    // a 304 without a Date Header, use the current time
+    // as the new Date value in the header to be cached.
+    time_t date_value = s->hdr_info.server_response.get_date();
+    HTTPHdr *cached_hdr = s->cache_info.object_store.response_get();
+
+    if (date_value <= 0) {
+      cached_hdr->set_date(s->request_sent_time);
+      date_value = s->request_sent_time;
+    }
+    // If the cached response has an Age: we should update it
+    // We could use calculate_document_age but my guess is it's overkill
+    // Just use 'now' - 304's Date: + Age: (response's Age: if there)
+    date_value = max(s->current.now - date_value, (ink_time_t)0);
+    if (s->hdr_info.server_response.presence(MIME_PRESENCE_AGE)) {
+      time_t new_age = s->hdr_info.server_response.get_age();
+
+      if (new_age >= 0)
+        cached_hdr->set_age(date_value + new_age);
+      else
+        cached_hdr->set_age(-1); // Overflow
+    }
+    delete_warning_value(cached_hdr, HTTP_WARNING_CODE_REVALIDATION_FAILED);
+  }
+
+  s->cache_info.object_store.request_get()->field_delete(MIME_FIELD_VIA, MIME_LEN_VIA);
+
+}
+
+void
+HttpTransact::handle_transform_cache_write(State* s)
+{
+  ink_assert(s->cache_info.transform_action == CACHE_PREPARE_TO_WRITE);
+
+  switch (s->cache_info.write_lock_state) {
+  case CACHE_WL_SUCCESS:
+    // We were able to get the lock for the URL vector in the cache
+    s->cache_info.transform_action = CACHE_DO_WRITE;
+    break;
+  case CACHE_WL_FAIL:
+    // No write lock, ignore the cache
+    s->cache_info.transform_action = CACHE_DO_NO_ACTION;
+    s->cache_info.transform_write_status = CACHE_WRITE_LOCK_MISS;
+    break;
+  default:
+    ink_release_assert(0);
+  }
+
+  TRANSACT_RETURN(SM_ACTION_TRANSFORM_READ, NULL);
+}
+
+void
+HttpTransact::handle_transform_ready(State* s)
+{
+  ink_assert(s->hdr_info.transform_response.valid() == true);
+
+  s->pre_transform_source = s->source;
+  s->source = SOURCE_TRANSFORM;
+
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", &s->hdr_info.transform_response, s->state_machine_id, "Header From Transform");
+
+  build_response(s, &s->hdr_info.transform_response, &s->hdr_info.client_response, s->client_info.http_version);
+
+  if (s->cache_info.action != CACHE_DO_NO_ACTION &&
+      s->cache_info.action != CACHE_DO_DELETE && s->api_info.cache_transformed && !s->range_setup) {
+    HTTPHdr *transform_store_request = 0;
+    switch (s->pre_transform_source) {
+    case SOURCE_CACHE:
+      // If we are transforming from the cache, treat
+      //  the transform as if it were virtual server
+      //  use in the incoming request
+      transform_store_request = &s->hdr_info.client_request;
+      break;
+    case SOURCE_HTTP_ORIGIN_SERVER:
+      transform_store_request = &s->hdr_info.server_request;
+      break;
+    default:
+      ink_release_assert(0);
+    }
+    ink_assert(transform_store_request->valid() == true);
+    set_headers_for_cache_write(s, &s->cache_info.transform_store, transform_store_request, &s->hdr_info.transform_response);
+
+    // For debugging
+    if (is_action_tag_set("http_nullt")) {
+      s->cache_info.transform_store.request_get()->value_set("InkXform", 8, "nullt", 5);
+      s->cache_info.transform_store.response_get()->value_set("InkXform", 8, "nullt", 5);
+    }
+
+    s->cache_info.transform_action = CACHE_PREPARE_TO_WRITE;
+    TRANSACT_RETURN(SM_ACTION_CACHE_ISSUE_WRITE_TRANSFORM, handle_transform_cache_write);
+  } else {
+    s->cache_info.transform_action = CACHE_DO_NO_ACTION;
+    TRANSACT_RETURN(SM_ACTION_TRANSFORM_READ, NULL);
+  }
+}
+
+void
+HttpTransact::set_header_for_transform(State* s, HTTPHdr* base_header)
+{
+  s->hdr_info.transform_response.create(HTTP_TYPE_RESPONSE);
+  s->hdr_info.transform_response.copy(base_header);
+
+  // Nuke the content length since 1) the transform will probably
+  //   change it.  2) it would only be valid for the first transform
+  //   in the chain
+  s->hdr_info.transform_response.field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", &s->hdr_info.transform_response, s->state_machine_id, "Header To Transform");
+}
+
+void
+HttpTransact::set_headers_for_cache_write(State* s, HTTPInfo* cache_info, HTTPHdr* request, HTTPHdr* response)
+{
+  URL *temp_url;
+  ink_assert(request->type_get() == HTTP_TYPE_REQUEST);
+  ink_assert(response->type_get() == HTTP_TYPE_RESPONSE);
+
+  if (!cache_info->valid()) {
+    cache_info->create();
+  }
+
+  /* Store the requested URI */
+  //  Nasty hack. The set calls for
+  //  marshalled types current do handle something being
+  //  set to itself.  Make the check here for that case.
+  //  Why the request url is set before a copy made is
+  //  quite beyond me.  Seems like a unsafe practice so
+  //  FIX ME!
+
+  // Logic added to restore the orignal URL for multiple cache lookup
+  // and automatic redirection
+  if (s->redirect_info.redirect_in_process) {
+    temp_url = &s->redirect_info.original_url;
+    ink_assert(temp_url->valid());
+    request->url_set(temp_url);
+  } else if ((temp_url = &(s->cache_info.original_url))->valid()) {
+    request->url_set(temp_url);
+  } else if (request != &s->hdr_info.client_request) {
+    request->url_set(s->hdr_info.client_request.url_get());
+  }
+  cache_info->request_set(request);
+  if (!s->negative_caching)
+    cache_info->response_set(response);
+  else {
+    ink_assert(cache_info->response_get()->valid());
+  }
+
+  if (s->api_server_request_body_set)
+    cache_info->request_get()->method_set(HTTP_METHOD_GET, HTTP_LEN_GET);
+
+  // Set-Cookie should not be put in the cache to prevent
+  //  sending person A's cookie to person B
+  cache_info->response_get()->field_delete(MIME_FIELD_SET_COOKIE, MIME_LEN_SET_COOKIE);
+  cache_info->request_get()->field_delete(MIME_FIELD_VIA, MIME_LEN_VIA);
+  // server 200 Ok for Range request
+  cache_info->request_get()->field_delete(MIME_FIELD_RANGE, MIME_LEN_RANGE);
+
+  // If we're ignoring auth, then we don't want to cache WWW-Auth
+  //  headers
+  if (s->txn_conf->cache_ignore_auth) {
+    cache_info->response_get()->field_delete(MIME_FIELD_WWW_AUTHENTICATE, MIME_LEN_WWW_AUTHENTICATE);
+  }
+
+  //if (s->cache_control.cache_auth_content && s->www_auth_content != CACHE_AUTH_NONE) {
+    // decided to cache authenticated content because of cache.config
+    // add one marker to the content in cache
+   // cache_info->response_get()->value_set("@WWW-Auth", 9, "true", 4);
+  //}
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", cache_info->request_get(), s->state_machine_id, "Cached Request Hdr");
+}
+
+void
+HttpTransact::merge_response_header_with_cached_header(HTTPHdr* cached_header, HTTPHdr* response_header)
+{
+  MIMEField *field;
+  MIMEField *new_field;
+  MIMEFieldIter fiter;
+  const char *name;
+  bool dups_seen = false;
+
+
+  field = response_header->iter_get_first(&fiter);
+
+  for (; field != NULL; field = response_header->iter_get_next(&fiter)) {
+    int name_len;
+    name = field->name_get(&name_len);
+
+    ///////////////////////////
+    // is hop-by-hop header? //
+    ///////////////////////////
+    if (HttpTransactHeaders::is_this_a_hop_by_hop_header(name)) {
+      continue;
+    }
+    /////////////////////////////////////
+    // dont cache content-length field //
+    /////////////////////////////////////
+    if (name == MIME_FIELD_CONTENT_LENGTH) {
+      continue;
+    }
+    /////////////////////////////////////
+    // dont cache Set-Cookie headers   //
+    /////////////////////////////////////
+    if (name == MIME_FIELD_SET_COOKIE) {
+      continue;
+    }
+    /////////////////////////////////////////
+    // dont overwrite the cached content   //
+    //   type as this wreaks havoc with    //
+    //   transformed content               //
+    /////////////////////////////////////////
+    if (name == MIME_FIELD_CONTENT_TYPE) {
+      continue;
+    }
+    /////////////////////////////////////
+    // dont delete warning.  a separate//
+    //  functions merges the two in a  //
+    //  complex manner                 //
+    /////////////////////////////////////
+    if (name == MIME_FIELD_WARNING) {
+      continue;
+    }
+    // Copy all remaining headers with replacement
+
+    // Duplicate header fields cause a bug problem
+    //   since we need to duplicate with replacement.
+    //   Without dups, we can just nuke what is already
+    //   there in the cached header.  With dups, we
+    //   can't do this because what is already there
+    //   may be a dup we've already copied in.  If
+    //   dups show up we look through the remaining
+    //   header fields in the new reponse, nuke
+    //   them in the cached response and then add in
+    //   the remaining fields one by one from the
+    //   response header
+    //
+    if (field->m_next_dup) {
+      if (dups_seen == false) {
+        MIMEField *dfield;
+        // use a second iterator to delete the
+        // remaining response headers in the cached response,
+        // so that they will be added in the next iterations.
+        MIMEFieldIter fiter2 = fiter;
+        const char *dname = name;
+        int dlen = name_len;
+
+        while (dname) {
+          cached_header->field_delete(dname, dlen);
+          dfield = response_header->iter_get_next(&fiter2);
+          if (dfield) {
+            dname = dfield->name_get(&dlen);
+          } else {
+            dname = NULL;
+          }
+        }
+        dups_seen = true;
+      }
+    }
+
+    int value_len;
+    const char *value = field->value_get(&value_len);
+
+    if (dups_seen == false) {
+      cached_header->value_set(name, name_len, value, value_len);
+    } else {
+      new_field = cached_header->field_create(name, name_len);
+      cached_header->field_attach(new_field);
+      cached_header->field_value_set(new_field, value, value_len);
+    }
+  }
+
+  merge_warning_header(cached_header, response_header);
+
+  Debug("http_hdr_space", "Merged response header with %d dead bytes", cached_header->m_heap->m_lost_string_space);
+}
+
+
+void
+HttpTransact::merge_warning_header(HTTPHdr* cached_header, HTTPHdr* response_header)
+{
+  //  The plan:
+  //
+  //    1) The cached header has it's warning codes untouched
+  //         since merge_response_header_with_cached_header()
+  //         doesn't deal with warning headers.
+  //    2) If there are 1xx warning codes in the cached
+  //         header, they need to be removed.  Removal
+  //         is difficult since the hdrs don't comma
+  //         separate values, so build up a new header
+  //         piecemal.  Very slow but shouldn't happen
+  //         very often
+  //    3) Since we keep the all the warning codes from
+  //         the response header, append if to
+  //         the cached header
+  //
+  MIMEField *c_warn = cached_header->field_find(MIME_FIELD_WARNING, MIME_LEN_WARNING);
+  MIMEField *r_warn = response_header->field_find(MIME_FIELD_WARNING, MIME_LEN_WARNING);
+  MIMEField *new_cwarn = NULL;
+  int move_warn_len;
+  const char *move_warn;
+
+  // Loop over the cached warning header and transfer all non 1xx
+  //   warning values to a new header
+  if (c_warn) {
+    HdrCsvIter csv;
+
+    move_warn = csv.get_first(c_warn, &move_warn_len);
+    while (move_warn) {
+      int code = ink_atoi(move_warn, move_warn_len);
+      if (code<100 || code> 199) {
+        bool first_move;
+        if (!new_cwarn) {
+          new_cwarn = cached_header->field_create();
+          first_move = true;
+        } else {
+          first_move = false;
+        }
+        cached_header->field_value_append(new_cwarn, move_warn, move_warn_len, !first_move);
+      }
+
+      move_warn = csv.get_next(&move_warn_len);
+    }
+
+    // At this point we can nuke the old warning headers
+    cached_header->field_delete(MIME_FIELD_WARNING, MIME_LEN_WARNING);
+
+    // Add in the new header if it has anything in it
+    if (new_cwarn) {
+      new_cwarn->name_set(cached_header->m_heap, cached_header->m_mime, MIME_FIELD_WARNING, MIME_LEN_WARNING);
+      cached_header->field_attach(new_cwarn);
+    }
+  }
+  // Loop over all the dups in the response warning header and append
+  //  them one by one on to the cached warning header
+  while (r_warn) {
+    move_warn = r_warn->value_get(&move_warn_len);
+
+    if (new_cwarn) {
+      cached_header->field_value_append(new_cwarn, move_warn, move_warn_len, true);
+    } else {
+      new_cwarn = cached_header->field_create(MIME_FIELD_WARNING, MIME_LEN_WARNING);
+      cached_header->field_attach(new_cwarn);
+      cached_header->field_value_set(new_cwarn, move_warn, move_warn_len);
+    }
+
+    r_warn = r_warn->m_next_dup;
+  }
+}
+
+void
+HttpTransact::get_ka_info_from_host_db(State *s, ConnectionAttributes *server_info,
+                                       ConnectionAttributes * /* client_info ATS_UNUSED */, HostDBInfo *host_db_info)
+{
+  ////////////////////////////////////////////////////////
+  // Set the keep-alive and version flags for later use //
+  // in request construction                            //
+  // this is also used when opening a connection to     //
+  // the origin server, and search_keepalive_to().      //
+  ////////////////////////////////////////////////////////
+
+  bool force_http11 = false;
+  bool http11_if_hostdb = false;
+
+  switch (s->txn_conf->send_http11_requests) {
+  case HttpConfigParams::SEND_HTTP11_NEVER:
+    // No need to do anything since above vars
+    //   are defaulted false
+    break;
+  case HttpConfigParams::SEND_HTTP11_ALWAYS:
+    force_http11 = true;
+    break;
+  case HttpConfigParams::SEND_HTTP11_UPGRADE_HOSTDB:
+    http11_if_hostdb = true;
+    break;
+  default:
+    ink_assert(0);
+    // FALL THROUGH
+  case HttpConfigParams::SEND_HTTP11_IF_REQUEST_11_AND_HOSTDB:
+    if (s->hdr_info.client_request.version_get() == HTTPVersion(1, 1)) {
+      http11_if_hostdb = true;
+    }
+    break;
+  }
+
+  if (force_http11 == true ||
+      (http11_if_hostdb == true &&
+       host_db_info->app.http_data.http_version == HostDBApplicationInfo::HTTP_VERSION_11)) {
+    server_info->http_version.set(1, 1);
+    server_info->keep_alive = HTTP_KEEPALIVE;
+  } else if (host_db_info->app.http_data.http_version == HostDBApplicationInfo::HTTP_VERSION_10) {
+    server_info->http_version.set(1, 0);
+    server_info->keep_alive = HTTP_KEEPALIVE;
+  } else if (host_db_info->app.http_data.http_version == HostDBApplicationInfo::HTTP_VERSION_09) {
+    server_info->http_version.set(0, 9);
+    server_info->keep_alive = HTTP_NO_KEEPALIVE;
+  } else {
+    //////////////////////////////////////////////
+    // not set yet for this host. set defaults. //
+    //////////////////////////////////////////////
+    server_info->http_version.set(1, 0);
+    server_info->keep_alive = HTTP_KEEPALIVE;
+    host_db_info->app.http_data.http_version = HostDBApplicationInfo::HTTP_VERSION_10;
+  }
+
+  /////////////////////////////
+  // origin server keep_alive //
+  /////////////////////////////
+  if (!s->txn_conf->keep_alive_enabled_out) {
+    server_info->keep_alive = HTTP_NO_KEEPALIVE;
+  }
+
+  return;
+}
+
+void
+HttpTransact::add_client_ip_to_outgoing_request(State* s, HTTPHdr* request)
+{
+  char ip_string[INET6_ADDRSTRLEN + 1] = {'\0'};
+  size_t ip_string_size = 0;
+
+  if (!ats_is_ip(&s->client_info.addr.sa))
+    return;
+
+  // Always prepare the IP string.
+  if (ats_ip_ntop(&s->client_info.addr.sa, ip_string, sizeof(ip_string)) != NULL) {
+    ip_string_size += strlen(ip_string);
+  } else {
+    // Failure, omg
+    ip_string_size = 0;
+    ip_string[0] = 0;
+  }
+
+  ////////////////////////////////////////////////////////////////
+  // if we want client-ip headers, and there isn't one, add one //
+  ////////////////////////////////////////////////////////////////
+  if ((s->txn_conf->anonymize_insert_client_ip) && (!s->txn_conf->anonymize_remove_client_ip)) {
+    bool client_ip_set = request->presence(MIME_PRESENCE_CLIENT_IP);
+    DebugTxn("http_trans", "client_ip_set = %d", client_ip_set);
+
+    if (!client_ip_set && ip_string_size > 0) {
+      request->value_set(MIME_FIELD_CLIENT_IP, MIME_LEN_CLIENT_IP, ip_string, ip_string_size);
+      DebugTxn("http_trans", "inserted request header 'Client-ip: %s'", ip_string);
+    }
+  }
+
+  if (s->txn_conf->insert_squid_x_forwarded_for) {
+    if (ip_string_size > 0) {
+      MIMEField *x_for;
+
+      if ((x_for = request->field_find(MIME_FIELD_X_FORWARDED_FOR, MIME_LEN_X_FORWARDED_FOR)) != 0) {
+        // http://en.wikipedia.org/wiki/X-Forwarded-For
+        // The X-Forwarded-For (XFF) HTTP header field is a de facto standard
+        // for identifying the originating IP address of a client connecting
+        // to a web server through an HTTP proxy or load balancer. This is a
+        // non-RFC-standard request field which was introduced by the Squid
+        // caching proxy server's developers.
+        //   X-Forwarded-For: client1, proxy1, proxy2
+        request->field_value_append(x_for, ip_string, ip_string_size, true);  // true => comma must be inserted
+      } else {
+        request->value_set(MIME_FIELD_X_FORWARDED_FOR, MIME_LEN_X_FORWARDED_FOR, ip_string, ip_string_size);
+      }
+      DebugTxn("http_trans", "[add_client_ip_to_outgoing_request] Appended connecting client's "
+            "(%s) to the X-Forwards header", ip_string);
+    }
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : check_request_validity()
+// Description: checks to see if incoming request has necessary fields
+//
+// Input      : State, header (can we do this without the state?)
+// Output     : enum RequestError_t of the error type, if any
+//
+// Details    :
+//
+//
+///////////////////////////////////////////////////////////////////////////////
+HttpTransact::RequestError_t HttpTransact::check_request_validity(State* s, HTTPHdr* incoming_hdr)
+{
+  if (incoming_hdr == 0) {
+    return NON_EXISTANT_REQUEST_HEADER;
+  }
+
+  if (!(HttpTransactHeaders::is_request_proxy_authorized(incoming_hdr))) {
+    return FAILED_PROXY_AUTHORIZATION;
+  }
+
+  URL *incoming_url = incoming_hdr->url_get();
+  int hostname_len;
+  const char *hostname = incoming_hdr->host_get(&hostname_len);
+
+  if (hostname == NULL) {
+    return MISSING_HOST_FIELD;
+  }
+
+  if (hostname_len >= MAXDNAME || hostname_len <= 0 || memchr(hostname, '\0', hostname_len)) {
+    return BAD_HTTP_HEADER_SYNTAX;
+  }
+
+  int scheme = incoming_url->scheme_get_wksidx();
+  int method = incoming_hdr->method_get_wksidx();
+
+  // Check for chunked encoding
+  if (incoming_hdr->presence(MIME_PRESENCE_TRANSFER_ENCODING)) {
+    MIMEField *field = incoming_hdr->field_find(MIME_FIELD_TRANSFER_ENCODING, MIME_LEN_TRANSFER_ENCODING);
+    HdrCsvIter enc_val_iter;
+    int enc_val_len;
+    const char *enc_value = enc_val_iter.get_first(field, &enc_val_len);
+
+    while (enc_value) {
+      const char *wks_value = hdrtoken_string_to_wks(enc_value, enc_val_len);
+      if (wks_value == HTTP_VALUE_CHUNKED) {
+          s->client_info.transfer_encoding = CHUNKED_ENCODING;
+        break;
+      }
+        enc_value = enc_val_iter.get_next(&enc_val_len);
+    }
+  }
+
+  /////////////////////////////////////////////////////
+  // get request content length                      //
+  // To avoid parsing content-length twice, we set   //
+  // s->hdr_info.request_content_length here rather  //
+  // than in initialize_state_variables_from_request //
+  /////////////////////////////////////////////////////
+  if (method != HTTP_WKSIDX_TRACE) {
+    int64_t length = incoming_hdr->get_content_length();
+    s->hdr_info.request_content_length = (length >= 0) ? length : HTTP_UNDEFINED_CL;    // content length less than zero is invalid
+
+    DebugTxn("http_trans", "[init_stat_vars_from_req] set req cont length to %" PRId64,
+          s->hdr_info.request_content_length);
+
+  } else {
+    s->hdr_info.request_content_length = 0;
+  }
+
+  if (!((scheme == URL_WKSIDX_HTTP) && (method == HTTP_WKSIDX_GET))) {
+    if (scheme != URL_WKSIDX_HTTP && scheme != URL_WKSIDX_HTTPS &&
+        method != HTTP_WKSIDX_CONNECT &&
+        ((scheme == URL_WKSIDX_WS || scheme == URL_WKSIDX_WSS) && !s->is_websocket)) {
+      if (scheme < 0) {
+        return NO_REQUEST_SCHEME;
+      } else {
+        return SCHEME_NOT_SUPPORTED;
+      }
+    }
+
+    if (!HttpTransactHeaders::is_this_method_supported(scheme, method)) {
+      return METHOD_NOT_SUPPORTED;
+    }
+    if ((method == HTTP_WKSIDX_CONNECT) && !s->transparent_passthrough && (!is_port_in_range(incoming_hdr->url_get()->port_get(), s->http_config_param->connect_ports))) {
+      return BAD_CONNECT_PORT;
+    }
+
+    // Require Content-Length/Transfer-Encoding for POST/PUSH/PUT
+    if ((scheme == URL_WKSIDX_HTTP || scheme == URL_WKSIDX_HTTPS) &&
+        (method == HTTP_WKSIDX_POST || method == HTTP_WKSIDX_PUSH || method == HTTP_WKSIDX_PUT) &&
+        s->client_info.transfer_encoding != CHUNKED_ENCODING) {
+      if (!incoming_hdr->presence(MIME_PRESENCE_CONTENT_LENGTH)) {
+        return NO_POST_CONTENT_LENGTH;
+      }
+      if (HTTP_UNDEFINED_CL == s->hdr_info.request_content_length) {
+        return INVALID_POST_CONTENT_LENGTH;
+      }
+    }
+  }
+  // Check whether a Host header field is missing in the request.
+  if (!incoming_hdr->presence(MIME_PRESENCE_HOST) && incoming_hdr->version_get() != HTTPVersion(0, 9)) {
+    // Update the number of incoming 1.0 or 1.1 requests that do
+    // not contain Host header fields.
+    HTTP_INCREMENT_TRANS_STAT(http_missing_host_hdr_stat);
+  }
+  // Did the client send a "TE: identity;q=0"? We have to respond
+  // with an error message because we only support identity
+  // Transfer Encoding.
+
+  if (incoming_hdr->presence(MIME_PRESENCE_TE)) {
+    MIMEField *te_field = incoming_hdr->field_find(MIME_FIELD_TE, MIME_LEN_TE);
+    HTTPValTE *te_val;
+
+    if (te_field) {
+      HdrCsvIter csv_iter;
+      int te_raw_len;
+      const char *te_raw = csv_iter.get_first(te_field, &te_raw_len);
+
+      while (te_raw) {
+        te_val = http_parse_te(te_raw, te_raw_len, &s->arena);
+        if (te_val->encoding == HTTP_VALUE_IDENTITY) {
+          if (te_val->qvalue <= 0.0) {
+            s->arena.free(te_val, sizeof(HTTPValTE));
+            return UNACCEPTABLE_TE_REQUIRED;
+          }
+        }
+        s->arena.free(te_val, sizeof(HTTPValTE));
+        te_raw = csv_iter.get_next(&te_raw_len);
+      }
+    }
+  }
+
+  return NO_REQUEST_HEADER_ERROR;
+}
+
+HttpTransact::ResponseError_t HttpTransact::check_response_validity(State* s, HTTPHdr* incoming_hdr)
+{
+  ink_assert(s->next_hop_scheme == URL_WKSIDX_HTTP || s->next_hop_scheme == URL_WKSIDX_HTTPS);
+
+  if (incoming_hdr == 0) {
+    return NON_EXISTANT_RESPONSE_HEADER;
+  }
+
+  if (incoming_hdr->type_get() != HTTP_TYPE_RESPONSE) {
+    return NOT_A_RESPONSE_HEADER;
+  }
+  // If the response is 0.9 then there is no status
+  //   code or date
+  if (did_forward_server_send_0_9_response(s) == true) {
+    return NO_RESPONSE_HEADER_ERROR;
+  }
+
+  HTTPStatus incoming_status = incoming_hdr->status_get();
+  if (!incoming_status) {
+    return MISSING_STATUS_CODE;
+  }
+
+  if (incoming_status == HTTP_STATUS_INTERNAL_SERVER_ERROR) {
+    return STATUS_CODE_SERVER_ERROR;
+  }
+
+  if (!incoming_hdr->presence(MIME_PRESENCE_DATE)) {
+    incoming_hdr->set_date(s->current.now);
+  }
+//     if (! incoming_hdr->get_reason_phrase()) {
+//      return MISSING_REASON_PHRASE;
+//     }
+
+#ifdef REALLY_NEED_TO_CHECK_DATE_VALIDITY
+
+  if (incoming_hdr->presence(MIME_PRESENCE_DATE)) {
+    time_t date_value = incoming_hdr->get_date();
+    if (date_value <= 0) {
+// following lines commented out because of performance
+// concerns
+//          if (s->http_config_param->errors_log_error_pages) {
+//              const char *date_string =
+//                    incoming_hdr->value_get(MIME_FIELD_DATE);
+//              Log::error ("Incoming response has bogus date value: %d: %s",
+//                          date_value, date_string ? date_string : "(null)");
+//          }
+
+      DebugTxn("http_trans", "[check_response_validity] Bogus date in response");
+      return BOGUS_OR_NO_DATE_IN_RESPONSE;
+    }
+  } else {
+    DebugTxn("http_trans", "[check_response_validity] No date in response");
+    return BOGUS_OR_NO_DATE_IN_RESPONSE;
+  }
+#endif
+
+  return NO_RESPONSE_HEADER_ERROR;
+}
+
+bool
+HttpTransact::did_forward_server_send_0_9_response(State* s)
+{
+  if (s->hdr_info.server_response.version_get() == HTTPVersion(0, 9)) {
+    s->current.server->http_version.set(0, 9);
+    return true;
+  }
+  return false;
+}
+
+bool
+HttpTransact::handle_internal_request(State* /* s ATS_UNUSED */, HTTPHdr* incoming_hdr)
+{
+  URL *url;
+
+  ink_assert(incoming_hdr->type_get() == HTTP_TYPE_REQUEST);
+
+  if (incoming_hdr->method_get_wksidx() != HTTP_WKSIDX_GET) {
+    return false;
+  }
+
+  url = incoming_hdr->url_get();
+
+  int scheme = url->scheme_get_wksidx();
+  if (scheme != URL_WKSIDX_HTTP && scheme != URL_WKSIDX_HTTPS) {
+    return false;
+  }
+
+  if (!statPagesManager.is_stat_page(url)) {
+    return false;
+  }
+
+  return true;
+}
+
+bool
+HttpTransact::handle_trace_and_options_requests(State* s, HTTPHdr* incoming_hdr)
+{
+  ink_assert(incoming_hdr->type_get() == HTTP_TYPE_REQUEST);
+
+  // This only applies to TRACE and OPTIONS
+  if ((s->method != HTTP_WKSIDX_TRACE) && (s->method != HTTP_WKSIDX_OPTIONS))
+    return false;
+
+  // If there is no Max-Forwards request header, just return false.
+  if (!incoming_hdr->presence(MIME_PRESENCE_MAX_FORWARDS)) {
+    // Trace and Options requests should not be looked up in cache.
+    // s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->current.mode = TUNNELLING_PROXY;
+    HTTP_INCREMENT_TRANS_STAT(http_tunnels_stat);
+    return false;
+  }
+
+  int max_forwards = incoming_hdr->get_max_forwards();
+  if (max_forwards <= 0) {
+    //////////////////////////////////////////////
+    // if max-forward is 0 the request must not //
+    // be forwarded to the origin server.       //
+    //////////////////////////////////////////////
+    DebugTxn("http_trans", "[handle_trace] max-forwards: 0, building response...");
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+    build_response(s, &s->hdr_info.client_response, s->client_info.http_version, HTTP_STATUS_OK);
+
+    ////////////////////////////////////////
+    // if method is trace we should write //
+    // the request header as the body.    //
+    ////////////////////////////////////////
+    if (s->method == HTTP_WKSIDX_TRACE) {
+      DebugTxn("http_trans", "[handle_trace] inserting request in body.");
+      int req_length = incoming_hdr->length_get();
+      HTTP_RELEASE_ASSERT(req_length > 0);
+
+      s->internal_msg_buffer_index = 0;
+      s->internal_msg_buffer_size = req_length * 2;
+      s->free_internal_msg_buffer();
+
+      if (s->internal_msg_buffer_size <= max_iobuffer_size) {
+        s->internal_msg_buffer_fast_allocator_size = buffer_size_to_index(s->internal_msg_buffer_size);
+        s->internal_msg_buffer = (char *) ioBufAllocator[s->internal_msg_buffer_fast_allocator_size].alloc_void();
+      } else {
+        s->internal_msg_buffer_fast_allocator_size = -1;
+        s->internal_msg_buffer = (char *)ats_malloc(s->internal_msg_buffer_size);
+      }
+
+      // clear the stupid buffer
+      memset(s->internal_msg_buffer, '\0', s->internal_msg_buffer_size);
+
+      int offset = 0;
+      int used = 0;
+      int done;
+      done = incoming_hdr->print(s->internal_msg_buffer, s->internal_msg_buffer_size, &used, &offset);
+      HTTP_RELEASE_ASSERT(done);
+      s->internal_msg_buffer_size = used;
+
+      s->hdr_info.client_response.set_content_length(used);
+    } else {
+      // For OPTIONS request insert supported methods in ALLOW field
+      DebugTxn("http_trans", "[handle_options] inserting methods in Allow.");
+      HttpTransactHeaders::insert_supported_methods_in_response(&s->hdr_info.client_response, s->scheme);
+
+    }
+    return true;
+  } else {                      /* max-forwards != 0 */
+
+    if ((max_forwards <= 0) || (max_forwards > INT_MAX)) {
+      Log::error("HTTP: snapping invalid max-forwards value %d to %d", max_forwards, INT_MAX);
+      max_forwards = INT_MAX;
+    }
+
+    --max_forwards;
+    DebugTxn("http_trans", "[handle_trace_options] Decrementing max_forwards to %d", max_forwards);
+    incoming_hdr->set_max_forwards(max_forwards);
+
+    // Trace and Options requests should not be looked up in cache.
+    // s->cache_info.action = CACHE_DO_NO_ACTION;
+    s->current.mode = TUNNELLING_PROXY;
+    HTTP_INCREMENT_TRANS_STAT(http_tunnels_stat);
+  }
+
+  return false;
+}
+
+void
+HttpTransact::initialize_state_variables_for_origin_server(State* s, HTTPHdr* incoming_request, bool second_time)
+{
+  if (s->server_info.name && !second_time) {
+    ink_assert(s->server_info.port != 0);
+  }
+
+  int host_len;
+  const char *host = incoming_request->host_get(&host_len);
+  s->server_info.name = s->arena.str_store(host, host_len);
+  s->server_info.port = incoming_request->port_get();
+
+  if (second_time) {
+    s->dns_info.attempts = 0;
+    s->dns_info.lookup_name = s->server_info.name;
+  }
+}
+
+void
+HttpTransact::bootstrap_state_variables_from_request(State* s, HTTPHdr* incoming_request)
+{
+  s->current.now = s->client_request_time = ink_cluster_time();
+  s->client_info.http_version = incoming_request->version_get();
+}
+
+void
+HttpTransact::initialize_state_variables_from_request(State* s, HTTPHdr* obsolete_incoming_request)
+{
+  HTTPHdr* incoming_request = &s->hdr_info.client_request;
+
+  // Temporary, until we're confident that the second argument is redundant.
+  ink_assert(incoming_request == obsolete_incoming_request);
+
+  int host_len;
+  const char *host_name = incoming_request->host_get(&host_len);
+
+  // check if the request is conditional (IMS or INM)
+  if (incoming_request->presence(MIME_PRESENCE_IF_MODIFIED_SINCE | MIME_PRESENCE_IF_NONE_MATCH)) {
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_IMS);
+  } else {
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_SIMPLE);
+  }
+
+  // Is the user agent Keep-Alive?
+  //  If we are transparent or if the user-agent is following
+  //  the 1.1 spec, we will see a "Connection" header to
+  //  indicate a keep-alive.  However most user-agents including
+  //  MSIE3.0, Netscape4.04 and Netscape3.01 send Proxy-Connection
+  //  when they are configured to use a proxy.  Proxy-Connection
+  //  is not in the spec but was added to prevent problems
+  //  with a dumb proxy forwarding all headers (including "Connection")
+  //  to the origin server and confusing it.  In cases of transparent
+  //  deployments we use the Proxy-Connect hdr (to be as transparent
+  //  as possible).
+  MIMEField *pc = incoming_request->field_find(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION);
+
+  // If we need to send a close header later check to see if it should be "Proxy-Connection"
+  if (pc != NULL) {
+    s->client_info.proxy_connect_hdr = true;
+  }
+
+  if (!s->txn_conf->keep_alive_enabled_in) {
+    s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+  } else {
+    // If there is a Proxy-Connection header use that, otherwise use the Connection header
+    if (pc != NULL) {
+      s->client_info.keep_alive = is_header_keep_alive(s->client_info.http_version, s->client_info.http_version, pc);
+    } else {
+      MIMEField *c = incoming_request->field_find(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+
+      s->client_info.keep_alive = is_header_keep_alive(s->client_info.http_version, s->client_info.http_version, c);
+    }
+  }
+
+  if (s->client_info.keep_alive == HTTP_KEEPALIVE && s->client_info.http_version == HTTPVersion(1, 1)) {
+    s->client_info.pipeline_possible = true;
+  }
+
+  if (!s->server_info.name || s->redirect_info.redirect_in_process) {
+    s->server_info.name = s->arena.str_store(host_name, host_len);
+    s->server_info.port = incoming_request->port_get();
+  } else {
+    ink_assert(s->server_info.port != 0);
+  }
+
+  s->next_hop_scheme = s->scheme = incoming_request->url_get()->scheme_get_wksidx();
+
+  // With websockets we need to make an outgoing request
+  // as http or https.
+  // We switch back to HTTP or HTTPS for the next hop
+  // I think this is required to properly establish outbound WSS connections,
+  // you'll need to force the next hop to be https.
+  if (s->is_websocket) {
+    if (s->next_hop_scheme == URL_WKSIDX_WS) {
+      DebugTxn("http_trans", "Switching WS next hop scheme to http.");
+      s->next_hop_scheme = URL_WKSIDX_HTTP;
+      s->scheme = URL_WKSIDX_HTTP;
+      //s->request_data.hdr->url_get()->scheme_set(URL_SCHEME_HTTP, URL_LEN_HTTP);
+    } else if (s->next_hop_scheme == URL_WKSIDX_WSS) {
+      DebugTxn("http_trans", "Switching WSS next hop scheme to https.");
+      s->next_hop_scheme = URL_WKSIDX_HTTPS;
+      s->scheme = URL_WKSIDX_HTTPS;
+      //s->request_data.hdr->url_get()->scheme_set(URL_SCHEME_HTTPS, URL_LEN_HTTPS);
+    } else {
+      Error("Scheme doesn't match websocket...!");
+    }
+
+    s->current.mode = GENERIC_PROXY;
+    s->cache_info.action = CACHE_DO_NO_ACTION;
+  }
+
+  s->method = incoming_request->method_get_wksidx();
+
+  if (s->method == HTTP_WKSIDX_GET) {
+    HTTP_INCREMENT_TRANS_STAT(http_get_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_HEAD) {
+    HTTP_INCREMENT_TRANS_STAT(http_head_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_POST) {
+    HTTP_INCREMENT_TRANS_STAT(http_post_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_PUT) {
+    HTTP_INCREMENT_TRANS_STAT(http_put_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_CONNECT) {
+    HTTP_INCREMENT_TRANS_STAT(http_connect_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_DELETE) {
+    HTTP_INCREMENT_TRANS_STAT(http_delete_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_PURGE) {
+    HTTP_INCREMENT_TRANS_STAT(http_purge_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_TRACE) {
+    HTTP_INCREMENT_TRANS_STAT(http_trace_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_PUSH) {
+    HTTP_INCREMENT_TRANS_STAT(http_push_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_OPTIONS) {
+    HTTP_INCREMENT_TRANS_STAT(http_options_requests_stat);
+  } else if (s->method == HTTP_WKSIDX_TRACE) {
+    HTTP_INCREMENT_TRANS_STAT(http_trace_requests_stat);
+  } else {
+    HTTP_INCREMENT_TRANS_STAT(http_extension_method_requests_stat);
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_METHOD);
+    s->squid_codes.log_code = SQUID_LOG_TCP_MISS;
+    s->hdr_info.extension_method = true;
+  }
+
+  // if transfer encoding is chunked content length is undefined
+  if (s->client_info.transfer_encoding == CHUNKED_ENCODING) {
+    s->hdr_info.request_content_length = HTTP_UNDEFINED_CL;
+  }
+  s->request_data.hdr = &s->hdr_info.client_request;
+
+  s->request_data.hostname_str = s->arena.str_store(host_name, host_len);
+  ats_ip_copy(&s->request_data.src_ip, &s->client_info.addr);
+  memset(&s->request_data.dest_ip, 0, sizeof(s->request_data.dest_ip));
+  if (s->state_machine->ua_session) {
+    s->request_data.incoming_port = s->state_machine->ua_session->get_netvc()->get_local_port();
+  }
+  s->request_data.xact_start = s->client_request_time;
+  s->request_data.api_info = &s->api_info;
+
+  /////////////////////////////////////////////
+  // Do dns lookup for the host. We need     //
+  // the expanded host for cache lookup, and //
+  // the host ip for reverse proxy.          //
+  /////////////////////////////////////////////
+  s->dns_info.looking_up = ORIGIN_SERVER;
+  s->dns_info.attempts = 0;
+  s->dns_info.lookup_name = s->server_info.name;
+}
+
+void
+HttpTransact::initialize_state_variables_from_response(State* s, HTTPHdr* incoming_response)
+{
+  /* check if the server permits caching */
+  s->cache_info.directives.does_server_permit_storing =
+    HttpTransactHeaders::does_server_allow_response_to_be_stored(&s->hdr_info.server_response);
+
+  /*
+   * A stupid moronic broken pathetic excuse
+   *   for a server may send us a keep alive response even
+   *   if we sent "Connection: close"  We need check the response
+   *   header regardless of what we sent to the server
+   */
+  MIMEField *c_hdr;
+  if ((s->current.request_to != ORIGIN_SERVER) &&
+      (s->current.request_to == PARENT_PROXY ||
+       s->current.request_to == ICP_SUGGESTED_HOST)) {
+    c_hdr = s->hdr_info.server_response.field_find(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION);
+
+    // If there is a Proxy-Connection header use that,
+    //   otherwise use the Connection header
+    if (c_hdr == NULL) {
+      c_hdr = s->hdr_info.server_response.field_find(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+    }
+  } else {
+    c_hdr = s->hdr_info.server_response.field_find(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+  }
+
+  s->current.server->keep_alive = is_header_keep_alive(s->hdr_info.server_response.version_get(),
+                                                       s->hdr_info.server_request.version_get(), c_hdr);
+
+  // Don't allow an upgrade request to Keep Alive
+  if (s->is_upgrade_request) {
+    s->current.server->keep_alive = HTTP_NO_KEEPALIVE;
+  }
+
+  if (s->current.server->keep_alive == HTTP_KEEPALIVE) {
+    if (!s->cop_test_page)
+      DebugTxn("http_hdrs", "[initialize_state_variables_from_response]" "Server is keep-alive.");
+  } else if (s->state_machine->ua_session && s->state_machine->ua_session->f_outbound_transparent && s->state_machine->t_state.http_config_param->use_client_source_port) {
+    /* If we are reusing the client<->ATS 4-tuple for ATS<->server then if the server side is closed, we can't
+       re-open it because the 4-tuple may still be in the processing of shutting down. So if the server isn't
+       keep alive we must turn that off for the client as well.
+    */
+    s->state_machine->t_state.client_info.keep_alive = HTTP_NO_KEEPALIVE;
+  }
+
+
+  HTTPStatus status_code = incoming_response->status_get();
+  if (is_response_body_precluded(status_code, s->method)) {
+    s->hdr_info.response_content_length = 0;
+    s->hdr_info.trust_response_cl = true;
+  } else {
+    // This code used to discriminate CL: headers when the origin disabled keep-alive.
+    if (incoming_response->presence(MIME_PRESENCE_CONTENT_LENGTH)) {
+      int64_t cl = incoming_response->get_content_length();
+
+      s->hdr_info.response_content_length = (cl >= 0) ? cl : HTTP_UNDEFINED_CL;
+      s->hdr_info.trust_response_cl = true;
+    } else {
+      s->hdr_info.response_content_length = HTTP_UNDEFINED_CL;
+      s->hdr_info.trust_response_cl = false;
+    }
+  }
+
+  if (incoming_response->presence(MIME_PRESENCE_TRANSFER_ENCODING)) {
+    MIMEField *field = incoming_response->field_find(MIME_FIELD_TRANSFER_ENCODING, MIME_LEN_TRANSFER_ENCODING);
+
+    HdrCsvIter enc_val_iter;
+    int enc_val_len;
+    const char *enc_value = enc_val_iter.get_first(field, &enc_val_len);
+
+    while (enc_value) {
+      const char *wks_value = hdrtoken_string_to_wks(enc_value, enc_val_len);
+
+      if (wks_value == HTTP_VALUE_CHUNKED) {
+        if (!s->cop_test_page) {
+          DebugTxn("http_hdrs", "[init_state_vars_from_resp] transfer encoding: chunked!");
+        }
+        s->current.server->transfer_encoding = CHUNKED_ENCODING;
+
+        s->hdr_info.response_content_length = HTTP_UNDEFINED_CL;
+        s->hdr_info.trust_response_cl = false;
+
+        // OBJECTIVE: Since we are dechunking the request remove the
+        //   chunked value If this is the only value, we need to remove
+        //    the whole field.
+        MIMEField *new_enc_field = NULL;
+        HdrCsvIter new_enc_iter;
+        int new_enc_len;
+        const char *new_enc_val = new_enc_iter.get_first(field, &new_enc_len);
+
+        // Loop over the all the values in existing Trans-enc header and
+        //   copy the ones that aren't our chunked value to a new field
+        while (new_enc_val) {
+          const char *new_wks_value = hdrtoken_string_to_wks(new_enc_val, new_enc_len);
+          if (new_wks_value != wks_value) {
+            if (new_enc_field) {
+              new_enc_field->value_append(incoming_response->m_heap, incoming_response->m_mime, new_enc_val, new_enc_len, true);
+            } else {
+              new_enc_field = incoming_response->field_create();
+              incoming_response->field_value_set(new_enc_field, new_enc_val, new_enc_len);
+            }
+          }
+
+          new_enc_val = new_enc_iter.get_next(&new_enc_len);
+        }
+
+        // We're done with the old field since we copied out everything
+        //   we needed
+        incoming_response->field_delete(field);
+
+        // If there is a new field (ie: there was more than one
+        //   transfer-encoding), insert it to the list
+        if (new_enc_field) {
+          new_enc_field->name_set(incoming_response->m_heap, incoming_response->m_mime, MIME_FIELD_TRANSFER_ENCODING,
+                                  MIME_LEN_TRANSFER_ENCODING);
+          incoming_response->field_attach(new_enc_field);
+        }
+
+        return;
+      }                         //  if (enc_value == CHUNKED)
+
+      enc_value = enc_val_iter.get_next(&enc_val_len);
+    }
+  }
+
+  s->current.server->transfer_encoding = NO_TRANSFER_ENCODING;
+}
+
+
+bool
+HttpTransact::is_cache_response_returnable(State* s)
+{
+  if (s->cache_control.never_cache) {
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_CONFIG);
+    return false;
+  }
+
+  if (!s->cache_info.directives.does_client_permit_lookup) {
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_CLIENT);
+    return false;
+  }
+
+  if (!HttpTransactHeaders::is_method_cacheable(s->method) && s->api_resp_cacheable == false) {
+    SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_CACHE_NOT_ACCEPTABLE);
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_METHOD);
+    return false;
+  }
+  // If cookies in response and no TTL set, we do not cache the doc
+  if ((s->cache_control.ttl_in_cache <= 0) &&
+      do_cookies_prevent_caching((int) s->txn_conf->cache_responses_to_cookies,
+                                 &s->hdr_info.client_request, s->cache_info.object_read->response_get(),
+                                 s->cache_info.object_read->request_get())) {
+    SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_CACHE_NOT_ACCEPTABLE);
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_COOKIE);
+    return false;
+  }
+
+  return true;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : is_stale_cache_response_returnable()
+// Description: check if a stale cached response is returnable to a client
+//
+// Input      : State
+// Output     : true or false
+//
+// Details    :
+//
+///////////////////////////////////////////////////////////////////////////////
+bool
+HttpTransact::is_stale_cache_response_returnable(State* s)
+{
+  HTTPHdr *cached_response = s->cache_info.object_read->response_get();
+
+  // First check if client allows cached response
+  // Note does_client_permit_lookup was set to
+  // does_client_Request_permit_cached_response()
+  // in update_cache_control_information_from_config().
+  if (!s->cache_info.directives.does_client_permit_lookup) {
+    return false;
+  }
+  // Spec says that we can not serve a stale document with a
+  //   "must-revalidate header"
+  // How about "s-maxage" and "no-cache" directives?
+  uint32_t cc_mask;
+  cc_mask = (MIME_COOKED_MASK_CC_MUST_REVALIDATE |
+             MIME_COOKED_MASK_CC_PROXY_REVALIDATE |
+             MIME_COOKED_MASK_CC_NEED_REVALIDATE_ONCE |
+             MIME_COOKED_MASK_CC_NO_CACHE | MIME_COOKED_MASK_CC_NO_STORE | MIME_COOKED_MASK_CC_S_MAXAGE);
+  if ((cached_response->get_cooked_cc_mask() & cc_mask) || cached_response->is_pragma_no_cache_set()) {
+    DebugTxn("http_trans", "[is_stale_cache_response_returnable] " "document headers prevent serving stale");
+    return false;
+  }
+  // See how old the document really is.  We don't want create a
+  //   stale content museum of documents that are no longer available
+  time_t current_age = HttpTransactHeaders::calculate_document_age(s->cache_info.object_read->request_sent_time_get(),
+                                                                   s->cache_info.object_read->response_received_time_get(),
+                                                                   cached_response,
+                                                                   cached_response->get_date(),
+                                                                   s->current.now);
+  // Negative age is overflow
+  if ((current_age < 0) || (current_age > s->txn_conf->cache_max_stale_age)) {
+    DebugTxn("http_trans", "[is_stale_cache_response_returnable] " "document age is too large %" PRId64,
+             (int64_t)current_age);
+    return false;
+  }
+  // If the stale document requires authorization, we can't return it either.
+  Authentication_t auth_needed = AuthenticationNeeded(s->txn_conf, &s->hdr_info.client_request, cached_response);
+
+  if (auth_needed != AUTHENTICATION_SUCCESS) {
+    DebugTxn("http_trans", "[is_stale_cache_response_returnable] " "authorization prevent serving stale");
+    return false;
+  }
+
+  DebugTxn("http_trans", "[is_stale_cache_response_returnable] can serve stale");
+  return true;
+}
+
+
+bool
+HttpTransact::url_looks_dynamic(URL* url)
+{
+  const char *p_start, *p, *t;
+  static const char *asp = ".asp";
+  const char *part;
+  int part_length;
+
+  if (url->scheme_get_wksidx() != URL_WKSIDX_HTTP && url->scheme_get_wksidx() != URL_WKSIDX_HTTPS) {
+    return false;
+  }
+  ////////////////////////////////////////////////////////////
+  // (1) If URL contains query stuff in it, call it dynamic //
+  ////////////////////////////////////////////////////////////
+
+  part = url->params_get(&part_length);
+  if (part != NULL) {
+    return true;
+  }
+  part = url->query_get(&part_length);
+  if (part != NULL) {
+    return true;
+  }
+  ///////////////////////////////////////////////
+  // (2) If path ends in "asp" call it dynamic //
+  ///////////////////////////////////////////////
+
+  part = url->path_get(&part_length);
+  if (part) {
+    p = &part[part_length - 1];
+    t = &asp[3];
+
+    while (p != part) {
+      if (ParseRules::ink_tolower(*p) == ParseRules::ink_tolower(*t)) {
+        p -= 1;
+        t -= 1;
+        if (t == asp)
+          return true;
+      } else
+        break;
+    }
+  }
+  /////////////////////////////////////////////////////////////////
+  // (3) If the path of the url contains "cgi", call it dynamic. //
+  /////////////////////////////////////////////////////////////////
+
+  if (part && part_length >= 3) {
+    for (p_start = part; p_start <= &part[part_length - 3]; p_start++) {
+      if (((p_start[0] == 'c') || (p_start[0] == 'C')) &&
+          ((p_start[1] == 'g') || (p_start[1] == 'G')) && ((p_start[2] == 'i') || (p_start[2] == 'I'))) {
+        return (true);
+      }
+    }
+  }
+
+  return (false);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : is_request_cache_lookupable()
+// Description: check if a request should be looked up in cache
+//
+// Input      : State, request header
+// Output     : true or false
+//
+// Details    :
+//
+//
+///////////////////////////////////////////////////////////////////////////////
+bool
+HttpTransact::is_request_cache_lookupable(State* s)
+{
+  // ummm, someone has already decided that proxy should tunnel
+  if (s->current.mode == TUNNELLING_PROXY) {
+    return false;
+  }
+  // don't bother with remaining checks if we already did a cache lookup
+  if (s->cache_info.lookup_count > 0) {
+    return true;
+  }
+  // is cache turned on?
+  if (!s->txn_conf->cache_http) {
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_CACHE_OFF);
+    return false;
+  }
+  // GET, HEAD, POST, DELETE, and PUT are all cache lookupable
+  if (!HttpTransactHeaders::is_method_cache_lookupable(s->method) && s->api_req_cacheable == false) {
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_METHOD);
+    return false;
+  }
+  // don't cache page if URL "looks dynamic" and this filter is enabled
+  // We can do the check in is_response_cacheable() or here.
+  // It may be more efficient if we are not going to cache dynamic looking urls
+  // (the default config?) since we don't even need to do cache lookup.
+  // So for the time being, it'll be left here.
+
+  // If url looks dynamic but a ttl is set, request is cache lookupable
+  if ((!s->txn_conf->cache_urls_that_look_dynamic) &&
+      url_looks_dynamic(s->hdr_info.client_request.url_get()) && (s->cache_control.ttl_in_cache <= 0)) {
+    // We do not want to forward the request for a dynamic URL onto the
+    // origin server if the value of the Max-Forwards header is zero.
+    int max_forwards = -1;
+    if (s->hdr_info.client_request.presence(MIME_PRESENCE_MAX_FORWARDS)) {
+      MIMEField *max_forwards_f = s->hdr_info.client_request.field_find(MIME_FIELD_MAX_FORWARDS, MIME_LEN_MAX_FORWARDS);
+
+      if (max_forwards_f)
+        max_forwards = max_forwards_f->value_get_int();
+    }
+
+    if (max_forwards != 0) {
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_URL);
+      return false;
+    }
+  }
+
+  // Don't look in cache if it's a RANGE request but the cache is not enabled for RANGE.
+  if (!s->txn_conf->cache_range_lookup && s->hdr_info.client_request.presence(MIME_PRESENCE_RANGE)) {
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_HEADER_FIELD);
+    return false;
+  }
+
+  // Even with "no-cache" directive, we want to do a cache lookup
+  // because we need to update our cached copy.
+  // Client request "no-cache" directive is handle elsewhere:
+  // update_cache_control_information_from_config()
+
+  return true;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : response_cacheable_indicated_by_cc()
+// Description: check if a response is cacheable as indicated by Cache-Control
+//
+// Input      : Response header
+// Output     : -1, 0, or +1
+//
+// Details    :
+// (1) return -1 if cache control indicates response not cacheable,
+//     ie, with no-store, or private directives;
+// (2) return +1 if cache control indicates response cacheable
+//     ie, with public, max-age, s-maxage, must-revalidate, or proxy-revalidate;
+// (3) otherwise, return 0 if cache control does not indicate.
+//
+///////////////////////////////////////////////////////////////////////////////
+int
+response_cacheable_indicated_by_cc(HTTPHdr* response)
+{
+  uint32_t cc_mask;
+  // the following directives imply not cacheable
+  cc_mask = (MIME_COOKED_MASK_CC_NO_STORE | MIME_COOKED_MASK_CC_PRIVATE);
+  if (response->get_cooked_cc_mask() & cc_mask) {
+    return -1;
+  }
+  // the following directives imply cacheable
+  cc_mask = (MIME_COOKED_MASK_CC_PUBLIC |
+             MIME_COOKED_MASK_CC_MAX_AGE |
+             MIME_COOKED_MASK_CC_S_MAXAGE | MIME_COOKED_MASK_CC_MUST_REVALIDATE | MIME_COOKED_MASK_CC_PROXY_REVALIDATE);
+  if (response->get_cooked_cc_mask() & cc_mask) {
+    return 1;
+  }
+  // otherwise, no indication
+  return 0;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : is_response_cacheable()
+// Description: check if a response is cacheable
+//
+// Input      : State, request header, response header
+// Output     : true or false
+//
+// Details    :
+//
+///////////////////////////////////////////////////////////////////////////////
+bool
+HttpTransact::is_response_cacheable(State* s, HTTPHdr* request, HTTPHdr* response)
+{
+  // if method is not GET or HEAD, do not cache.
+  // Note: POST is also cacheable with Expires or Cache-control.
+  // but due to INKqa11567, we are not caching POST responses.
+  // Basically, the problem is the resp for POST url1 req should not
+  // be served to a GET url1 request, but we just match URL not method.
+  int req_method = request->method_get_wksidx();
+  if (!(HttpTransactHeaders::is_method_cacheable(req_method)) && s->api_req_cacheable == false) {
+    DebugTxn("http_trans", "[is_response_cacheable] " "only GET, and some HEAD and POST are cachable");
+    return false;
+  }
+  // DebugTxn("http_trans", "[is_response_cacheable] method is cacheable");
+  // If the request was not looked up in the cache, the response
+  // should not be cached (same subsequent requests will not be
+  // looked up, either, so why cache this).
+  if (!(is_request_cache_lookupable(s))) {
+    DebugTxn("http_trans", "[is_response_cacheable] " "request is not cache lookupable, response is not cachable");
+    return (false);
+  }
+  // already has a fresh copy in the cache
+  if (s->range_setup == RANGE_NOT_HANDLED)
+    return false;
+
+  // Check whether the response is cachable based on its cookie
+  // If there are cookies in response but a ttl is set, allow caching
+  if ((s->cache_control.ttl_in_cache <= 0) &&
+      do_cookies_prevent_caching((int) s->txn_conf->cache_responses_to_cookies, request, response)) {
+    DebugTxn("http_trans", "[is_response_cacheable] " "response has uncachable cookies, response is not cachable");
+    return (false);
+  }
+  // if server spits back a WWW-Authenticate
+  if ((s->txn_conf->cache_ignore_auth) == 0 && response->presence(MIME_PRESENCE_WWW_AUTHENTICATE)) {
+    DebugTxn("http_trans", "[is_response_cacheable] " "response has WWW-Authenticate, response is not cachable");
+    return (false);
+  }
+  // does server explicitly forbid storing?
+  // If OS forbids storing but a ttl is set, allow caching
+  if (!s->cache_info.directives.does_server_permit_storing &&
+      !s->cache_control.ignore_server_no_cache && (s->cache_control.ttl_in_cache <= 0)) {
+    DebugTxn("http_trans", "[is_response_cacheable] server does not permit storing and config file does not "
+          "indicate that server directive should be ignored");
+    return (false);
+  }
+  // DebugTxn("http_trans", "[is_response_cacheable] server permits storing");
+
+  // does config explicitly forbid storing?
+  // ttl overides other config parameters
+  if ((!s->cache_info.directives.does_config_permit_storing &&
+       !s->cache_control.ignore_server_no_cache &&
+       (s->cache_control.ttl_in_cache <= 0)) || (s->cache_control.never_cache)) {
+    DebugTxn("http_trans", "[is_response_cacheable] config doesn't allow storing, and cache control does not "
+          "say to ignore no-cache and does not specify never-cache or a ttl");
+    return (false);
+  }
+  // DebugTxn("http_trans", "[is_response_cacheable] config permits storing");
+
+  // does client explicitly forbid storing?
+  if (!s->cache_info.directives.does_client_permit_storing && !s->cache_control.ignore_client_no_cache) {
+    DebugTxn("http_trans", "[is_response_cacheable] client does not permit storing, "
+          "and cache control does not say to ignore client no-cache");
+    return (false);
+  }
+  DebugTxn("http_trans", "[is_response_cacheable] client permits storing");
+
+  HTTPStatus response_code = response->status_get();
+
+  // caching/not-caching based on required headers
+  // only makes sense when the server sends back a
+  // 200 and a document.
+  if (response_code == HTTP_STATUS_OK) {
+    // If a ttl is set: no header required for caching
+    // otherwise: follow parameter http.cache.required_headers
+    if (s->cache_control.ttl_in_cache <= 0) {
+      uint32_t cc_mask = (MIME_COOKED_MASK_CC_MAX_AGE | MIME_COOKED_MASK_CC_S_MAXAGE);
+      // server did not send expires header or last modified
+      // and we are configured to not cache without them.
+      switch (s->txn_conf->cache_required_headers) {
+      case HttpConfigParams::CACHE_REQUIRED_HEADERS_NONE:
+        DebugTxn("http_trans", "[is_response_cacheable] " "no response headers required");
+        break;
+
+      case HttpConfigParams::CACHE_REQUIRED_HEADERS_AT_LEAST_LAST_MODIFIED:
+        if (!response->presence(MIME_PRESENCE_EXPIRES) && !(response->get_cooked_cc_mask() & cc_mask) &&
+            !response->get_last_modified()) {
+          DebugTxn("http_trans", "[is_response_cacheable] " "last_modified, expires, or max-age is required");
+
+          s->squid_codes.hit_miss_code = ((response->get_date() == 0) ? (SQUID_MISS_HTTP_NO_DLE) : (SQUID_MISS_HTTP_NO_LE));
+          return (false);
+        }
+        break;
+
+      case HttpConfigParams::CACHE_REQUIRED_HEADERS_CACHE_CONTROL:
+        if (!response->presence(MIME_PRESENCE_EXPIRES) && !(response->get_cooked_cc_mask() & cc_mask)) {
+          DebugTxn("http_trans", "[is_response_cacheable] " "expires header or max-age is required");
+          return (false);
+        }
+        break;
+
+      default:
+        break;
+      }
+    }
+  }
+  // do not cache partial content - Range response
+  if (response_code == HTTP_STATUS_PARTIAL_CONTENT || response_code == HTTP_STATUS_RANGE_NOT_SATISFIABLE) {
+    DebugTxn("http_trans", "[is_response_cacheable] " "response code %d - don't cache", response_code);
+    return false;
+  }
+
+  // check if cache control overrides default cacheability
+  int indicator;
+  indicator = response_cacheable_indicated_by_cc(response);
+  if (indicator > 0) {          // cacheable indicated by cache control header
+    DebugTxn("http_trans", "[is_response_cacheable] YES by response cache control");
+    // even if it is authenticated, this is cacheable based on regular rules
+    s->www_auth_content = CACHE_AUTH_NONE;
+    return true;
+  } else if (indicator < 0) {   // not cacheable indicated by cache control header
+
+    // If a ttl is set, allow caching even if response contains
+    // Cache-Control headers to prevent caching
+    if (s->cache_control.ttl_in_cache > 0) {
+      DebugTxn("http_trans", "[is_response_cacheable] Cache-control header directives in response overridden by ttl in cache.config");
+    } else if (!s->cache_control.ignore_server_no_cache) {
+      DebugTxn("http_trans", "[is_response_cacheable] NO by response cache control");
+      return false;
+    }
+  }
+  // else no indication by cache control header
+  // continue to determine cacheability
+
+  // if client contains Authorization header,
+  // only cache if response has proper Cache-Control
+ // if (s->www_auth_content == CACHE_AUTH_FRESH) {
+    // response to the HEAD request
+  //  return false;
+  //} else if (s->www_auth_content == CACHE_AUTH_TRUE ||
+   //          (s->www_auth_content == CACHE_AUTH_NONE && request->presence(MIME_PRESENCE_AUTHORIZATION))) {
+   // if (!s->cache_control.cache_auth_content || response_code != HTTP_STATUS_OK || req_method != HTTP_WKSIDX_GET)
+    //  return false;
+  //}
+  // s->www_auth_content == CACHE_AUTH_STALE silently continues
+
+  if (response->presence(MIME_PRESENCE_EXPIRES)) {
+    DebugTxn("http_trans", "[is_response_cacheable] YES response w/ Expires");
+    return true;
+  }
+  // if it's a 302 or 307 and no positive indicator from cache-control, reject
+  if (response_code == HTTP_STATUS_MOVED_TEMPORARILY || response_code == HTTP_STATUS_TEMPORARY_REDIRECT) {
+    DebugTxn("http_trans", "[is_response_cacheable] cache-control or expires header is required for 302");
+    return false;
+  }
+  // if it's a POST request and no positive indicator from cache-control
+  if (req_method == HTTP_WKSIDX_POST) {
+    // allow caching for a POST requests w/o Expires but with a ttl
+    if (s->cache_control.ttl_in_cache > 0) {
+      DebugTxn("http_trans", "[is_response_cacheable] POST method with a TTL");
+    } else {
+      DebugTxn("http_trans", "[is_response_cacheable] NO POST w/o Expires or CC");
+      return false;
+    }
+  }
+  // the plugin may decide we don't want to cache the response
+  if (s->api_server_response_no_store) {
+    return (false);
+  }
+  // default cacheability
+  if (!s->txn_conf->negative_caching_enabled) {
+    if ((response_code == HTTP_STATUS_OK) ||
+        (response_code == HTTP_STATUS_NOT_MODIFIED) ||
+        (response_code == HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION) ||
+        (response_code == HTTP_STATUS_MOVED_PERMANENTLY) ||
+        (response_code == HTTP_STATUS_MULTIPLE_CHOICES) || (response_code == HTTP_STATUS_GONE)) {
+      DebugTxn("http_trans", "[is_response_cacheable] YES by default ");
+      return true;
+    } else {
+      DebugTxn("http_trans", "[is_response_cacheable] NO by default");
+      return false;
+    }
+  }
+  if (response_code == HTTP_STATUS_SEE_OTHER ||
+      response_code == HTTP_STATUS_UNAUTHORIZED ||
+      response_code == HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED)
+    return false;
+  // let is_negative_caching_approriate decide what to do
+  return true;
+/* Since we weren't caching response obtained with
+   Authorization (the cache control stuff was commented out previously)
+   I've moved this check to is_request_cache_lookupable().
+   We should consider this matter further.  It is unclear
+   how many sites actually add Cache-Control headers for Authorized content.
+
+    // if client contains Authorization header, only cache if response
+    // has proper Cache-Control flags, as in RFC2068, section 14.8.
+    if (request->field_presence(MIME_PRESENCE_AUTHORIZATION)) {
+//         if (! (response->is_cache_control_set(HTTP_VALUE_MUST_REVALIDATE)) &&
+//             ! (response->is_cache_control_set(HTTP_VALUE_PROXY_REVALIDATE)) &&
+//             ! (response->is_cache_control_set(HTTP_VALUE_PUBLIC))) {
+
+	    DebugTxn("http_trans", "[is_response_cacheable] request has AUTHORIZATION - not cacheable");
+            return(false);
+//         }
+// 	else {
+// 	    DebugTxn("http_trans","[is_response_cacheable] request has AUTHORIZATION, "
+// 		  "but response has a cache-control that allows caching");
+// 	}
+    }
+*/
+}
+
+bool
+HttpTransact::is_request_valid(State* s, HTTPHdr* incoming_request)
+{
+  RequestError_t incoming_error;
+  URL *url = NULL;
+
+  if (incoming_request)
+    url = incoming_request->url_get();
+
+  incoming_error = check_request_validity(s, incoming_request);
+  switch (incoming_error) {
+  case NO_REQUEST_HEADER_ERROR:
+    DebugTxn("http_trans", "[is_request_valid]" "no request header errors");
+    break;
+  case FAILED_PROXY_AUTHORIZATION:
+    DebugTxn("http_trans", "[is_request_valid]" "failed proxy authorization");
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+    build_error_response(s, HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED, "Proxy Authentication Required",
+                         "access#proxy_auth_required", NULL);
+    return false;
+  case NON_EXISTANT_REQUEST_HEADER:
+    /* fall through */
+  case BAD_HTTP_HEADER_SYNTAX:
+    {
+      DebugTxn("http_trans", "[is_request_valid]" "non-existant/bad header");
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Invalid HTTP Request", "request#syntax_error", NULL);
+      return false;
+    }
+
+  case MISSING_HOST_FIELD:
+
+    ////////////////////////////////////////////////////////////////////
+    // FIX: are we sure the following logic is right?  it seems that  //
+    //      we shouldn't complain about the missing host header until //
+    //      we know we really need one --- are we sure we need a host //
+    //      header at this point?                                     //
+    //                                                                //
+    // FIX: also, let's clean up the transparency code to remove the  //
+    //      SunOS conditionals --- we will be transparent on all      //
+    //      platforms soon!  in fact, I really want a method that i   //
+    //      can call for each transaction to say if the transaction   //
+    //      is a forward proxy request, a transparent request, a      //
+    //      reverse proxy request, etc --- the detail of how we       //
+    //      determine the cases should be hidden behind the method.   //
+    ////////////////////////////////////////////////////////////////////
+
+    DebugTxn("http_trans", "[is_request_valid] missing host field");
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+    if (s->http_config_param->reverse_proxy_enabled) {   // host header missing and reverse proxy on
+      build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Host Header Required", "request#no_host", NULL);
+    } else {
+      // host header missing and reverse proxy off
+      build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Host Required In Request", "request#no_host", NULL);
+    }
+
+    return false;
+  case SCHEME_NOT_SUPPORTED:
+  case NO_REQUEST_SCHEME:
+    {
+      DebugTxn("http_trans", "[is_request_valid] unsupported " "or missing request scheme");
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Unsupported URL Scheme", "request#scheme_unsupported", NULL);
+      return false;
+    }
+    /* fall through */
+  case METHOD_NOT_SUPPORTED:
+    DebugTxn("http_trans", "[is_request_valid]" "unsupported method");
+    s->current.mode = TUNNELLING_PROXY;
+    return true;
+  case BAD_CONNECT_PORT:
+    int port;
+    port = url ? url->port_get() : 0;
+    DebugTxn("http_trans", "[is_request_valid]" "%d is an invalid connect port", port);
+    SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+    build_error_response(s, HTTP_STATUS_FORBIDDEN, "Tunnel Forbidden", "access#connect_forbidden", NULL);
+    return false;
+  case NO_POST_CONTENT_LENGTH:
+    {
+      DebugTxn("http_trans", "[is_request_valid] post request without content length");
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Content Length Required", "request#no_content_length", NULL);
+      return false;
+    }
+  case UNACCEPTABLE_TE_REQUIRED:
+    {
+      DebugTxn("http_trans", "[is_request_valid] TE required is unacceptable.");
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      build_error_response(s, HTTP_STATUS_NOT_ACCEPTABLE, "Transcoding Not Available", "transcoding#unsupported", NULL);
+      return false;
+    }
+  case INVALID_POST_CONTENT_LENGTH :
+    {
+      DebugTxn("http_trans", "[is_request_valid] post request with negative content length value");
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+      build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Invalid Content Length", "request#invalid_content_length", NULL);
+      return false;
+    }
+  default:
+    return true;
+  }
+
+  return true;
+}
+
+// bool HttpTransact::is_request_retryable
+//
+//   If we started a POST/PUT tunnel then we can
+//    not retry failed requests
+//
+bool
+HttpTransact::is_request_retryable(State* s)
+{
+  if (s->hdr_info.request_body_start == true) {
+    return false;
+  }
+
+  if (s->state_machine->plugin_tunnel_type != HTTP_NO_PLUGIN_TUNNEL) {
+    // API can override
+    if (s->state_machine->plugin_tunnel_type == HTTP_PLUGIN_AS_SERVER && s->api_info.retry_intercept_failures == true) {
+      // This used to be an == comparison, which made no sense. Changed
+      // to be an assignment, hoping the state is correct.
+      s->state_machine->plugin_tunnel_type = HTTP_NO_PLUGIN_TUNNEL;
+    } else {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool
+HttpTransact::is_response_valid(State* s, HTTPHdr* incoming_response)
+{
+  if (s->current.state != CONNECTION_ALIVE) {
+    ink_assert((s->current.state == CONNECTION_ERROR) ||
+                      (s->current.state == OPEN_RAW_ERROR) ||
+                      (s->current.state == PARSE_ERROR) ||
+                      (s->current.state == CONNECTION_CLOSED) ||
+                      (s->current.state == INACTIVE_TIMEOUT) ||
+                      (s->current.state == ACTIVE_TIMEOUT) ||
+                      (s->current.state == CONGEST_CONTROL_CONGESTED_ON_M) ||
+                      (s->current.state == CONGEST_CONTROL_CONGESTED_ON_F));
+
+    s->hdr_info.response_error = CONNECTION_OPEN_FAILED;
+    return false;
+  }
+
+  s->hdr_info.response_error = check_response_validity(s, incoming_response);
+
+  switch (s->hdr_info.response_error) {
+#ifdef REALLY_NEED_TO_CHECK_DATE_VALIDITY
+  case BOGUS_OR_NO_DATE_IN_RESPONSE:
+    // We could modify the response to add the date, if need be.
+//          incoming_response->set_date(s->request_sent_time);
+    return true;
+#endif
+  case NO_RESPONSE_HEADER_ERROR:
+    DebugTxn("http_trans", "[is_response_valid] No errors in response");
+    return true;
+
+  case MISSING_REASON_PHRASE:
+    DebugTxn("http_trans", "[is_response_valid] Response Error: Missing reason phrase - allowing");
+    return true;
+
+  case STATUS_CODE_SERVER_ERROR:
+    DebugTxn("http_trans", "[is_response_valid] Response Error: Origin Server returned 500 - allowing");
+    return true;
+
+  case CONNECTION_OPEN_FAILED:
+    DebugTxn("http_trans", "[is_response_valid] Response Error: connection open failed");
+    s->current.state = CONNECTION_ERROR;
+    return false;
+
+  case NON_EXISTANT_RESPONSE_HEADER:
+    DebugTxn("http_trans", "[is_response_valid] Response Error: No response header");
+    s->current.state = BAD_INCOMING_RESPONSE;
+    return false;
+
+  case NOT_A_RESPONSE_HEADER:
+    DebugTxn("http_trans", "[is_response_valid] Response Error: Not a response header");
+    s->current.state = BAD_INCOMING_RESPONSE;
+    return false;
+
+  case MISSING_STATUS_CODE:
+    DebugTxn("http_trans", "[is_response_valid] Response Error: Missing status code");
+    s->current.state = BAD_INCOMING_RESPONSE;
+    return false;
+
+  default:
+    DebugTxn("http_trans", "[is_response_valid] Errors in response");
+    s->current.state = BAD_INCOMING_RESPONSE;
+    return false;
+  }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : service_transaction_in_proxy_only_mode
+// Description: uses some metric to force this transaction to be proxy-only
+//
+// Details    :
+//
+// Some metric may be employed to force the traffic server to enter
+// a proxy-only mode temporarily. This function is called to determine
+// if the current transaction should be proxy-only. The function is
+// called from initialize_state_variables_from_request and is used to
+// set s->current.mode to TUNNELLING_PROXY and just for safety to set
+// s->cache_info.action to CACHE_DO_NO_ACTION.
+//
+// Currently the function is just a placeholder and always returns false.
+//
+///////////////////////////////////////////////////////////////////////////////
+bool
+HttpTransact::service_transaction_in_proxy_only_mode(State* /* s ATS_UNUSED */)
+{
+  return false;
+}
+
+void
+HttpTransact::process_quick_http_filter(State* s, int method)
+{
+  // connection already disabled by previous ACL filtering, don't modify it.
+  if (!s->client_connection_enabled) {
+    return;
+  }
+
+  if (s->state_machine->ua_session) {
+    const AclRecord *acl_record = s->state_machine->ua_session->acl_record;
+    bool deny_request = (acl_record == NULL);
+    if (acl_record && (acl_record->_method_mask != AclRecord::ALL_METHOD_MASK)) {
+      if (method != -1) {
+        deny_request = !acl_record->isMethodAllowed(method);
+      } else {
+        int method_str_len;
+        const char *method_str = s->hdr_info.client_request.method_get(&method_str_len);
+        deny_request = !acl_record->isNonstandardMethodAllowed(std::string(method_str, method_str_len));
+      }
+    }
+    if (deny_request) {
+      if (is_debug_tag_set("ip-allow")) {
+        ip_text_buffer ipb;
+        Debug("ip-allow", "Quick filter denial on %s:%s with mask %x", ats_ip_ntop(&s->client_info.addr.sa, ipb, sizeof(ipb)), hdrtoken_index_to_wks(method), acl_record->_method_mask);
+      }
+      s->client_connection_enabled = false;
+    }
+  }
+}
+
+
+HttpTransact::HostNameExpansionError_t HttpTransact::try_to_expand_host_name(State* s)
+{
+  static int max_dns_lookups = 2 + s->http_config_param->num_url_expansions;
+  static int last_expansion = max_dns_lookups - 2;
+
+  HTTP_RELEASE_ASSERT(!s->dns_info.lookup_success);
+
+  if (s->dns_info.looking_up == ORIGIN_SERVER) {
+    ///////////////////////////////////////////////////
+    // if resolving dns of the origin server failed, //
+    // we try to expand hostname.                    //
+    ///////////////////////////////////////////////////
+    if (s->http_config_param->enable_url_expandomatic) {
+      int attempts = s->dns_info.attempts;
+      ink_assert(attempts >= 1 && attempts <= max_dns_lookups);
+
+      if (attempts < max_dns_lookups) {
+        // Try a URL expansion
+        if (attempts <= last_expansion) {
+          char *expansion = s->http_config_param->url_expansions[attempts - 1];
+          int length = strlen(s->server_info.name) + strlen(expansion) + 1;
+
+          s->dns_info.lookup_name = s->arena.str_alloc(length);
+          ink_string_concatenate_strings_n(s->dns_info.lookup_name, length + 1, s->server_info.name, ".", expansion, NULL);
+        } else {
+          if (ParseRules::strchr(s->server_info.name, '.')) {
+            // don't expand if contains '.'
+            return (EXPANSION_FAILED);
+          }
+          // Try www.<server_name>.com
+          int length = strlen(s->server_info.name) + 8;
+
+          s->dns_info.lookup_name = s->arena.str_alloc(length);
+          ink_string_concatenate_strings_n(s->dns_info.lookup_name, length + 1, "www.", s->server_info.name, ".com", NULL);
+        }
+        return (RETRY_EXPANDED_NAME);
+      } else {
+        return (DNS_ATTEMPTS_EXHAUSTED);
+      }
+    } else {
+      return EXPANSION_NOT_ALLOWED;
+    }
+  } else {
+    //////////////////////////////////////////////////////
+    // we looked up dns of parent proxy, but it failed, //
+    // try lookup of origin server name.                //
+    //////////////////////////////////////////////////////
+    ink_assert(s->dns_info.looking_up == PARENT_PROXY);
+
+    s->dns_info.lookup_name = s->server_info.name;
+    s->dns_info.looking_up = ORIGIN_SERVER;
+    s->dns_info.attempts = 0;
+
+    return RETRY_EXPANDED_NAME;
+  }
+}
+
+bool
+HttpTransact::will_this_request_self_loop(State* s)
+{
+  ////////////////////////////////////////
+  // check if we are about to self loop //
+  ////////////////////////////////////////
+  if (s->dns_info.lookup_success) {
+    if (ats_ip_addr_eq(s->host_db_info.ip(), &Machine::instance()->ip.sa)) {
+      uint16_t host_port = s->hdr_info.client_request.url_get()->port_get();
+      uint16_t local_port = ats_ip_port_host_order(&s->client_info.addr);
+      if (host_port == local_port) {
+        switch (s->dns_info.looking_up) {
+        case ORIGIN_SERVER:
+          DebugTxn("http_transact", "[will_this_request_self_loop] host ip and port same as local ip and port - bailing");
+          break;
+        case PARENT_PROXY:
+          DebugTxn("http_transact", "[will_this_request_self_loop] "
+                "parent proxy ip and port same as local ip and port - bailing");
+          break;
+        default:
+          DebugTxn("http_transact", "[will_this_request_self_loop] "
+                "unknown's ip and port same as local ip and port - bailing");
+          break;
+        }
+        build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Cycle Detected", "request#cycle_detected", NULL);
+        return true;
+      }
+    }
+
+    // Now check for a loop using the Via string.
+    // Since we insert our ip_address (in hex) into outgoing Via strings,
+    // look for our_ip address in the request's via string.
+    if (ats_is_ip(&Machine::instance()->ip)) {
+      MIMEField *via_field = s->hdr_info.client_request.field_find(MIME_FIELD_VIA, MIME_LEN_VIA);
+
+      while (via_field) {
+        // No need to waste cycles comma separating the via values since we want to do a match anywhere in the
+        // in the string.  We can just loop over the dup hdr fields
+        int via_len;
+        const char *via_string = via_field->value_get(&via_len);
+
+        if (via_string && ptr_len_str(via_string, via_len, Machine::instance()->ip_hex_string)) {
+          DebugTxn("http_transact", "[will_this_request_self_loop] Incoming via: %.*s has (%s[%s] (%s))", via_len, via_string,
+                s->http_config_param->proxy_hostname, Machine::instance()->ip_hex_string, s->http_config_param->proxy_request_via_string);
+          build_error_response(s, HTTP_STATUS_BAD_REQUEST, "Multi-Hop Cycle Detected", "request#cycle_detected", NULL);
+          return true;
+        }
+
+        via_field = via_field->m_next_dup;
+      }
+    }
+  }
+  s->request_will_not_selfloop = true;
+  return false;
+}
+
+/*
+ * handle_content_length_header(...)
+ *  Function handles the insertion of content length headers into
+ * header. header CAN equal base.
+ */
+void
+HttpTransact::handle_content_length_header(State* s, HTTPHdr* header, HTTPHdr* base)
+{
+  int64_t cl = HTTP_UNDEFINED_CL;
+  ink_assert(header->type_get() == HTTP_TYPE_RESPONSE);
+  if (base->presence(MIME_PRESENCE_CONTENT_LENGTH)) {
+    cl = base->get_content_length();
+    if (cl >= 0) {
+      // header->set_content_length(cl);
+      ink_assert(header->get_content_length() == cl);
+
+      switch (s->source) {
+      case SOURCE_HTTP_ORIGIN_SERVER:
+        // We made our decision about whether to trust the
+        //   response content length in init_state_vars_from_response()
+        if (s->range_setup != HttpTransact::RANGE_NOT_TRANSFORM_REQUESTED)
+          break;
+
+      case SOURCE_CACHE:
+        // if we are doing a single Range: request, calculate the new
+        // C-L: header
+        if (s->range_setup == HttpTransact::RANGE_NOT_TRANSFORM_REQUESTED) {
+          change_response_header_because_of_range_request(s,header);
+          s->hdr_info.trust_response_cl = true;
+        }
+        ////////////////////////////////////////////////
+        //  Make sure that the cache's object size    //
+        //   agrees with the Content-Length           //
+        //   Otherwise, set the state's machine view  //
+        //   of c-l to undefined to turn off K-A      //
+        ////////////////////////////////////////////////
+        else if ((int64_t) s->cache_info.object_read->object_size_get() == cl) {
+          s->hdr_info.trust_response_cl = true;
+        } else {
+          DebugTxn("http_trans", "Content Length header and cache object size mismatch." "Disabling keep-alive");
+          s->hdr_info.trust_response_cl = false;
+        }
+        break;
+
+      case SOURCE_TRANSFORM:
+        if (s->range_setup == HttpTransact::RANGE_REQUESTED) {
+          header->set_content_length(s->range_output_cl);
+          s->hdr_info.trust_response_cl = true;
+        } else if (s->hdr_info.transform_response_cl == HTTP_UNDEFINED_CL) {
+          s->hdr_info.trust_response_cl = false;
+        } else {
+          s->hdr_info.trust_response_cl = true;
+        }
+        break;
+
+      default:
+        ink_release_assert(0);
+        break;
+      }
+    } else {
+      header->field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+      s->hdr_info.trust_response_cl = false;
+    }
+    Debug("http_trans", "[handle_content_length_header] RESPONSE cont len in hdr is %" PRId64, header->get_content_length());
+  } else {
+    // No content length header
+    if (s->source == SOURCE_CACHE) {
+      // If there is no content-length header, we can
+      //   insert one since the cache knows definately
+      //   how long the object is unless we're in a
+      //   read-while-write mode and object hasn't been
+      //   written into a cache completely.
+      cl = s->cache_info.object_read->object_size_get();
+      if (cl == INT64_MAX) { //INT64_MAX cl in cache indicates rww in progress
+        header->field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+        s->hdr_info.trust_response_cl = false;
+        s->hdr_info.request_content_length = HTTP_UNDEFINED_CL;
+        ink_assert(s->range_setup == RANGE_NONE);
+      }
+      else if (s->range_setup == RANGE_NOT_TRANSFORM_REQUESTED) {
+        // if we are doing a single Range: request, calculate the new
+        // C-L: header
+        change_response_header_because_of_range_request(s,header);
+        s->hdr_info.trust_response_cl = true;
+      }
+      else {
+        header->set_content_length(cl);
+        s->hdr_info.trust_response_cl = true;
+      }
+    } else {
+      // Check to see if there is no content length
+      //  header because the response precludes a
+      // body
+      if (is_response_body_precluded(header->status_get(), s->method)) {
+        // We want to be able to do keep-alive here since
+        //   there can't be body so we don't have any
+        //   issues about trusting the body length
+        s->hdr_info.trust_response_cl = true;
+      } else {
+        s->hdr_info.trust_response_cl = false;
+      }
+      header->field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+      ink_assert(s->range_setup != RANGE_NOT_TRANSFORM_REQUESTED);
+    }
+  }
+  return;
+}                               /* End HttpTransact::handle_content_length_header */
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void HttpTransact::handle_request_keep_alive_headers(
+//          State* s, bool ka_on, HTTPVersion ver, HTTPHdr *heads)
+//
+//      Removes keep alive headers from user-agent from <heads>
+//
+//      Adds the appropriate keep alive headers (if any) to <heads>
+//      for keep-alive state <ka_on>, and HTTP version <ver>.
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_request_keep_alive_headers(State* s, HTTPVersion ver, HTTPHdr* heads)
+{
+  enum KA_Action_t
+  {
+    KA_UNKNOWN,
+    KA_DISABLED,
+    KA_CLOSE,
+    KA_CONNECTION
+  };
+
+  KA_Action_t ka_action = KA_UNKNOWN;
+  bool upstream_ka = (s->current.server->keep_alive == HTTP_KEEPALIVE);
+
+  ink_assert(heads->type_get() == HTTP_TYPE_REQUEST);
+
+  // Check preconditions for Keep-Alive
+  if (!upstream_ka) {
+    ka_action = KA_DISABLED;
+  } else if (HTTP_MAJOR(ver.m_version) == 0) {  /* No K-A for 0.9 apps */
+    ka_action = KA_DISABLED;
+  }
+  // If preconditions are met, figure out what action to take
+  if (ka_action == KA_UNKNOWN) {
+    int method = heads->method_get_wksidx();
+    if (method == HTTP_WKSIDX_GET ||
+        method == HTTP_WKSIDX_HEAD ||
+        method == HTTP_WKSIDX_OPTIONS ||
+        method == HTTP_WKSIDX_PURGE || method == HTTP_WKSIDX_DELETE || method == HTTP_WKSIDX_TRACE) {
+      // These methods do not need a content-length header
+      ka_action = KA_CONNECTION;
+    } else {
+      // All remaining methods require a content length header
+      if (heads->get_content_length() == -1) {
+        ka_action = KA_CLOSE;
+      } else {
+        ka_action = KA_CONNECTION;
+      }
+    }
+  }
+
+  ink_assert(ka_action != KA_UNKNOWN);
+
+  // Since connection headers are hop-to-hop, strip the
+  //  the ones we received from the user-agent
+  heads->field_delete(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION);
+  heads->field_delete(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+
+  if (!s->is_upgrade_request) {
+    // Insert K-A headers as necessary
+    switch (ka_action) {
+    case KA_CONNECTION:
+      ink_assert(s->current.server->keep_alive != HTTP_NO_KEEPALIVE);
+      if (ver == HTTPVersion(1, 0)) {
+        if (s->current.request_to == PARENT_PROXY ||
+            s->current.request_to == ICP_SUGGESTED_HOST) {
+          heads->value_set(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION, "keep-alive", 10);
+        } else {
+          heads->value_set(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION, "keep-alive", 10);
+        }
+      }
+      // NOTE: if the version is 1.1 we don't need to do
+      //  anything since keep-alive is assumed
+      break;
+    case KA_DISABLED:
+    case KA_CLOSE:
+      if (s->current.server->keep_alive != HTTP_NO_KEEPALIVE || (ver == HTTPVersion(1, 1))) {
+        /* Had keep-alive */
+        s->current.server->keep_alive = HTTP_NO_KEEPALIVE;
+        if (s->current.request_to == PARENT_PROXY ||
+            s->current.request_to == ICP_SUGGESTED_HOST) {
+          heads->value_set(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION, "close", 5);
+        } else {
+          heads->value_set(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION, "close", 5);
+        }
+      }
+      // Note: if we are 1.1, we always need to send the close
+      //  header since persistant connnections are the default
+      break;
+    case KA_UNKNOWN:
+    default:
+      ink_assert(0);
+      break;
+    }
+  } else { /* websocket connection */
+    s->current.server->keep_alive = HTTP_NO_KEEPALIVE;
+    s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+    heads->value_set(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION, MIME_FIELD_UPGRADE, MIME_LEN_UPGRADE);
+
+    if (s->is_websocket) {
+      heads->value_set(MIME_FIELD_UPGRADE, MIME_LEN_UPGRADE, "websocket", 9);
+    }
+  }
+}                               /* End HttpTransact::handle_request_keep_alive_headers */
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void HttpTransact::handle_response_keep_alive_headers(
+//          State* s, bool ka_on, HTTPVersion ver, HTTPHdr *heads)
+//
+//      Removes keep alive headers from origin server from <heads>
+//
+//      Adds the appropriate Transfer-Encoding: chunked header.
+//
+//      Adds the appropriate keep alive headers (if any) to <heads>
+//      for keep-alive state <ka_on>, and HTTP version <ver>.
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::handle_response_keep_alive_headers(State* s, HTTPVersion ver, HTTPHdr* heads)
+{
+  enum KA_Action_t
+  { KA_UNKNOWN, KA_DISABLED, KA_CLOSE, KA_CONNECTION };
+  KA_Action_t ka_action = KA_UNKNOWN;
+
+  ink_assert(heads->type_get() == HTTP_TYPE_RESPONSE);
+
+  // Since connection headers are hop-to-hop, strip the
+  //  the ones we received from upstream
+  heads->field_delete(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION);
+  heads->field_delete(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION);
+
+  // Handle the upgrade cases
+  if (s->is_upgrade_request  &&
+      heads->status_get() == HTTP_STATUS_SWITCHING_PROTOCOL &&
+      s->source == SOURCE_HTTP_ORIGIN_SERVER) {
+    s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+    if (s->is_websocket) {
+      DebugTxn("http_trans", "transaction successfully upgraded to websockets.");
+      //s->transparent_passthrough = true;
+      heads->value_set(MIME_FIELD_CONNECTION, MIME_LEN_CONNECTION, MIME_FIELD_UPGRADE, MIME_LEN_UPGRADE);
+      heads->value_set(MIME_FIELD_UPGRADE, MIME_LEN_UPGRADE, "websocket", 9);
+    }
+
+    // We set this state so that we can jump to our blind forwarding state once
+    // the response is sent to the client.
+    s->did_upgrade_succeed = true;
+    return;
+  }
+
+  int c_hdr_field_len;
+  const char *c_hdr_field_str;
+  if (s->client_info.proxy_connect_hdr) {
+    c_hdr_field_str = MIME_FIELD_PROXY_CONNECTION;
+    c_hdr_field_len = MIME_LEN_PROXY_CONNECTION;
+  } else {
+    c_hdr_field_str = MIME_FIELD_CONNECTION;
+    c_hdr_field_len = MIME_LEN_CONNECTION;
+  }
+
+  // Check pre-conditions for keep-alive
+  if (HTTP_MAJOR(ver.m_version) == 0) {  /* No K-A for 0.9 apps */
+    ka_action = KA_DISABLED;
+  }
+  else if (heads->status_get() == HTTP_STATUS_NO_CONTENT &&
+      ((s->source == SOURCE_HTTP_ORIGIN_SERVER && s->current.server->transfer_encoding != NO_TRANSFER_ENCODING)
+       || heads->get_content_length() != 0)) {
+    // some systems hang until the connection closes when receiving a 204 regardless of the K-A headers
+    // close if there is any body response from the origin
+    ka_action = KA_CLOSE;
+  } else {
+    // Determine if we are going to send either a server-generated or
+    // proxy-generated chunked response to the client. If we cannot
+    // trust the content-length, we may be able to chunk the response
+    // to the client to keep the connection alive.
+    // Insert a Transfer-Encoding header in the response if necessary.
+
+    // check that the client is HTTP 1.1 and the conf allows chunking
+    if (s->client_info.http_version == HTTPVersion(1, 1) && s->txn_conf->chunking_enabled == 1 &&
+        // if we're not sending a body, don't set a chunked header regardless of server response
+        !is_response_body_precluded(s->hdr_info.client_response.status_get(), s->method) &&
+        // we do not need chunked encoding for internal error messages
+        // that are sent to the client if the server response is not valid.
+        (((s->source == SOURCE_HTTP_ORIGIN_SERVER || s->source == SOURCE_TRANSFORM) &&
+          s->hdr_info.server_response.valid() &&
+          // if we receive a 304, we will serve the client from the
+          // cache and thus do not need chunked encoding.
+          s->hdr_info.server_response.status_get() != HTTP_STATUS_NOT_MODIFIED &&
+          (s->current.server->transfer_encoding == HttpTransact::CHUNKED_ENCODING ||
+           // we can use chunked encoding if we cannot trust the content
+           // length (e.g. no Content-Length and Connection:close in HTTP/1.1 responses)
+           s->hdr_info.trust_response_cl == false)) ||
+         // handle serve from cache (read-while-write) case
+         (s->source == SOURCE_CACHE && s->hdr_info.trust_response_cl == false) ||
+         //any transform will potentially alter the content length. try chunking if possible
+         (s->source == SOURCE_TRANSFORM && s->hdr_info.trust_response_cl == false ))) {
+      s->client_info.receive_chunked_response = true;
+      heads->value_append(MIME_FIELD_TRANSFER_ENCODING, MIME_LEN_TRANSFER_ENCODING, HTTP_VALUE_CHUNKED, HTTP_LEN_CHUNKED, true);
+    } else {
+      s->client_info.receive_chunked_response = false;
+    }
+
+    //make sure no content length header is send when transfer encoding is chunked
+    if ( s->client_info.receive_chunked_response ) {
+      s->hdr_info.trust_response_cl = false;
+
+      // And delete the header if it's already been added...
+      heads->field_delete(MIME_FIELD_CONTENT_LENGTH, MIME_LEN_CONTENT_LENGTH);
+    }
+
+    // Close the connection if client_info is not keep-alive.
+    // Otherwise, if we cannot trust the content length, we will close the connection
+    // unless we are going to use chunked encoding or the client issued
+    // a PUSH request
+    if (s->client_info.keep_alive != HTTP_KEEPALIVE) {
+       ka_action = KA_DISABLED;
+    } else if (s->hdr_info.trust_response_cl == false &&
+        !(s->client_info.receive_chunked_response == true ||
+          (s->method == HTTP_WKSIDX_PUSH && s->client_info.keep_alive == HTTP_KEEPALIVE))) {
+      ka_action = KA_CLOSE;
+    } else {
+      ka_action = KA_CONNECTION;
+    }
+  }
+
+  // Insert K-A headers as necessary
+  switch (ka_action) {
+  case KA_CONNECTION:
+    ink_assert(s->client_info.keep_alive != HTTP_NO_KEEPALIVE);
+    // This is a hack, we send the keep-alive header for both 1.0
+    // and 1.1, to be "compatible" with Akamai.
+    // if (ver == HTTPVersion (1, 0)) {
+    heads->value_set(c_hdr_field_str, c_hdr_field_len, "keep-alive", 10);
+    // NOTE: if the version is 1.1 we don't need to do
+    //  anything since keep-alive is assumed
+    break;
+  case KA_CLOSE:
+  case KA_DISABLED:
+    if (s->client_info.keep_alive != HTTP_NO_KEEPALIVE || (ver == HTTPVersion(1, 1))) {
+      heads->value_set(c_hdr_field_str, c_hdr_field_len, "close", 5);
+      s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+    }
+    // Note: if we are 1.1, we always need to send the close
+    //  header since persistant connnections are the default
+    break;
+  case KA_UNKNOWN:
+  default:
+    ink_assert(0);
+    break;
+  }
+}                               /* End HttpTransact::handle_response_keep_alive_headers */
+
+
+bool
+HttpTransact::delete_all_document_alternates_and_return(State* s, bool cache_hit)
+{
+  if (cache_hit == true) {
+    if (s->cache_info.is_ram_cache_hit) {
+      SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_RAM_CACHE_FRESH);
+    } else {
+      SET_VIA_STRING(VIA_CACHE_RESULT, VIA_IN_CACHE_FRESH);
+    }
+  } else {
+    SET_VIA_STRING(VIA_DETAIL_CACHE_LOOKUP, VIA_DETAIL_MISS_NOT_CACHED);
+  }
+
+  if ((s->method != HTTP_WKSIDX_GET) && (s->method == HTTP_WKSIDX_DELETE || s->method == HTTP_WKSIDX_PURGE)) {
+    bool valid_max_forwards;
+    int max_forwards = -1;
+    MIMEField *max_forwards_f = s->hdr_info.client_request.field_find(MIME_FIELD_MAX_FORWARDS, MIME_LEN_MAX_FORWARDS);
+
+    // Check the max forwards value for DELETE
+    if (max_forwards_f) {
+      valid_max_forwards = true;
+      max_forwards = max_forwards_f->value_get_int();
+    } else {
+      valid_max_forwards = false;
+    }
+
+    if (s->method == HTTP_WKSIDX_PURGE || (valid_max_forwards && max_forwards <= 0)) {
+      DebugTxn("http_trans", "[delete_all_document_alternates_and_return] " "DELETE with Max-Forwards: %d", max_forwards);
+
+      SET_VIA_STRING(VIA_DETAIL_TUNNEL, VIA_DETAIL_TUNNEL_NO_FORWARD);
+
+      // allow deletes to be pipelined
+      //   We want to allow keep-alive so trust the response content
+      //    length.  There really isn't one and the SM will add the
+      //    zero content length when setting up the transfer
+      s->hdr_info.trust_response_cl = true;
+      build_response(s, &s->hdr_info.client_response, s->client_info.http_version,
+                     (cache_hit == true) ? HTTP_STATUS_OK : HTTP_STATUS_NOT_FOUND);
+
+      return true;
+    } else {
+      if (valid_max_forwards) {
+        --max_forwards;
+        DebugTxn("http_trans", "[delete_all_document_alternates_and_return] " "Decrementing max_forwards to %d", max_forwards);
+        s->hdr_info.client_request.value_set_int(MIME_FIELD_MAX_FORWARDS, MIME_LEN_MAX_FORWARDS, max_forwards);
+      }
+    }
+  }
+
+  return false;
+}
+
+bool
+HttpTransact::does_client_request_permit_cached_response(const OverridableHttpConfigParams *p, CacheControlResult *c,
+                                                         HTTPHdr *h, char *via_string)
+{
+  ////////////////////////////////////////////////////////////////////////
+  // If aren't ignoring client's cache directives, meet client's wishes //
+  ////////////////////////////////////////////////////////////////////////
+
+  if (!c->ignore_client_no_cache) {
+    if (h->is_cache_control_set(HTTP_VALUE_NO_CACHE))
+      return (false);
+    if (h->is_pragma_no_cache_set()) {
+      // if we are going to send out an ims anyway,
+      // no need to flag this as a no-cache.
+      if (!p->cache_ims_on_client_no_cache) {
+        via_string[VIA_CLIENT_REQUEST] = VIA_CLIENT_NO_CACHE;
+      }
+      return (false);
+    }
+  }
+
+  return (true);
+}
+
+bool
+HttpTransact::does_client_request_permit_dns_caching(CacheControlResult* c, HTTPHdr* h)
+{
+  if (h->is_pragma_no_cache_set() && h->is_cache_control_set(HTTP_VALUE_NO_CACHE) && (!c->ignore_client_no_cache)) {
+    return (false);
+  }
+  return (true);
+}
+
+bool
+HttpTransact::does_client_request_permit_storing(CacheControlResult* c, HTTPHdr* h)
+{
+  ////////////////////////////////////////////////////////////////////////
+  // If aren't ignoring client's cache directives, meet client's wishes //
+  ////////////////////////////////////////////////////////////////////////
+  if (!c->ignore_client_no_cache) {
+    if (h->is_cache_control_set(HTTP_VALUE_NO_STORE))
+      return (false);
+  }
+
+  return (true);
+}
+
+
+
+int
+HttpTransact::calculate_document_freshness_limit(State *s, HTTPHdr *response, time_t response_date, bool *heuristic)
+{
+  bool expires_set, date_set, last_modified_set;
+  time_t date_value, expires_value, last_modified_value;
+  MgmtInt min_freshness_bounds, max_freshness_bounds;
+  int freshness_limit = 0;
+  uint32_t cc_mask = response->get_cooked_cc_mask();
+
+  *heuristic = false;
+
+  if (cc_mask & (MIME_COOKED_MASK_CC_S_MAXAGE | MIME_COOKED_MASK_CC_MAX_AGE)) {
+    if (cc_mask & MIME_COOKED_MASK_CC_S_MAXAGE) {
+      freshness_limit = (int) response->get_cooked_cc_s_maxage();
+      DebugTxn("http_match", "calculate_document_freshness_limit --- s_max_age set, freshness_limit = %d", freshness_limit);
+    } else if (cc_mask & MIME_COOKED_MASK_CC_MAX_AGE) {
+      freshness_limit = (int) response->get_cooked_cc_max_age();
+      DebugTxn("http_match", "calculate_document_freshness_limit --- max_age set, freshness_limit = %d", freshness_limit);
+    }
+    freshness_limit = min(max(0, freshness_limit), NUM_SECONDS_IN_ONE_YEAR);
+  } else {
+    date_set = last_modified_set = false;
+
+    if (s->plugin_set_expire_time != UNDEFINED_TIME) {
+      expires_set = true;
+      expires_value = s->plugin_set_expire_time;
+    } else {
+      expires_set = (response->presence(MIME_PRESENCE_EXPIRES) != 0);
+      expires_value = response->get_expires();
+    }
+
+    date_value = response_date;
+    if (date_value > 0) {
+      date_set = true;
+    } else {
+      date_value = s->request_sent_time;
+      DebugTxn("http_match",
+               "calculate_document_freshness_limit --- Expires header = %" PRId64 " no date, using sent time %" PRId64,
+               (int64_t)expires_value, (int64_t)date_value);
+    }
+    ink_assert(date_value > 0);
+
+    // Getting the cache_sm object
+    HttpCacheSM & cache_sm = s->state_machine->get_cache_sm();
+
+    //Bypassing if loop to set freshness_limit to heuristic value
+    if (expires_set && !cache_sm.is_readwhilewrite_inprogress()) {
+      if (expires_value == UNDEFINED_TIME || expires_value <= date_value) {
+        expires_value = date_value;
+        DebugTxn("http_match", "calculate_document_freshness_limit --- no expires, using date %" PRId64,
+                 (int64_t)expires_value);
+      }
+      freshness_limit = (int) (expires_value - date_value);
+
+      DebugTxn("http_match",
+               "calculate_document_freshness_limit --- Expires: %" PRId64 ", Date: %" PRId64 ", freshness_limit = %d",
+               (int64_t)expires_value, (int64_t)date_value, freshness_limit);
+
+      freshness_limit = min(max(0, freshness_limit), NUM_SECONDS_IN_ONE_YEAR);
+    } else {
+      last_modified_value = 0;
+      if (response->presence(MIME_PRESENCE_LAST_MODIFIED)) {
+        last_modified_set = true;
+        last_modified_value = response->get_last_modified();
+        DebugTxn("http_match", "calculate_document_freshness_limit --- Last Modified header = %" PRId64,
+                 (int64_t)last_modified_value);
+
+        if (last_modified_value == UNDEFINED_TIME) {
+          last_modified_set = false;
+        } else if (last_modified_value > date_value) {
+          last_modified_value = date_value;
+          DebugTxn("http_match", "calculate_document_freshness_limit --- no last-modified, using sent time %" PRId64,
+                   (int64_t)last_modified_value);
+        }
+      }
+
+      *heuristic = true;
+      if (date_set && last_modified_set) {
+        MgmtFloat f = s->txn_conf->cache_heuristic_lm_factor;
+        ink_assert((f >= 0.0) && (f <= 1.0));
+        ink_time_t time_since_last_modify = date_value - last_modified_value;
+        int h_freshness = (int) (time_since_last_modify * f);
+        freshness_limit = max(h_freshness, 0);
+        DebugTxn("http_match", "calculate_document_freshness_limit --- heuristic: date=%" PRId64 ", lm=%" PRId64
+                 ", time_since_last_modify=%"  PRId64 ", f=%g, freshness_limit = %d",
+                 (int64_t)date_value, (int64_t)last_modified_value, (int64_t)time_since_last_modify,
+              f, freshness_limit);
+      } else {
+        freshness_limit = s->txn_conf->cache_heuristic_min_lifetime;
+        DebugTxn("http_match", "calculate_document_freshness_limit --- heuristic: freshness_limit = %d", freshness_limit);
+      }
+    }
+  }
+
+  // The freshness limit must always fall within the min and max guaranteed bounds.
+  min_freshness_bounds = max((MgmtInt)0, s->txn_conf->cache_guaranteed_min_lifetime);
+  max_freshness_bounds = min((MgmtInt)NUM_SECONDS_IN_ONE_YEAR, s->txn_conf->cache_guaranteed_max_lifetime);
+
+  // Heuristic freshness can be more strict.
+  if (*heuristic) {
+    min_freshness_bounds = max(min_freshness_bounds, s->txn_conf->cache_heuristic_min_lifetime);
+    max_freshness_bounds = min(max_freshness_bounds, s->txn_conf->cache_heuristic_max_lifetime);
+  }
+  // Now clip the freshness limit.
+  if (freshness_limit > max_freshness_bounds)
+    freshness_limit = max_freshness_bounds;
+  if (freshness_limit < min_freshness_bounds)
+    freshness_limit = min_freshness_bounds;
+
+  DebugTxn("http_match", "calculate_document_freshness_limit --- final freshness_limit = %d", freshness_limit);
+
+  return (freshness_limit);
+}
+
+
+
+////////////////////////////////////////////////////////////////////////////////////
+//  int HttpTransact::calculate_freshness_fuzz()
+//
+//    This function trys to revents many, many simulatenous revalidations in
+//     reverse proxy situations.  Statistically introduce a fuzz factor that
+//     brings revalidation forward for a small percentage of the requests/
+//     The hope is that is that the document early by a selected few, and
+//     the headers are updated in the cache before the regualr freshness
+//     limit is actually reached
+////////////////////////////////////////////////////////////////////////////////////
+
+int
+HttpTransact::calculate_freshness_fuzz(State* s, int fresh_limit)
+{
+  static double LOG_YEAR = log10((double)NUM_SECONDS_IN_ONE_YEAR);
+  const uint32_t granularity = 1000;
+  int result = 0;
+
+  uint32_t random_num = this_ethread()->generator.random();
+  uint32_t index = random_num % granularity;
+  uint32_t range = (uint32_t) (granularity * s->txn_conf->freshness_fuzz_prob);
+
+  if (index < range) {
+    if (s->txn_conf->freshness_fuzz_min_time > 0) {
+      // Complicated calculations to try to find a reasonable fuzz time between fuzz_min_time and fuzz_time
+      int fresh_small = (int)rint((double)s->txn_conf->freshness_fuzz_min_time *
+                                  pow(2, min((double)fresh_limit / (double)s->txn_conf->freshness_fuzz_time,
+                                             sqrt((double)s->txn_conf->freshness_fuzz_time))));
+      int fresh_large = max((int)s->txn_conf->freshness_fuzz_min_time,
+                            (int)rint(s->txn_conf->freshness_fuzz_time *
+                                      log10((double)(fresh_limit - s->txn_conf->freshness_fuzz_min_time) / LOG_YEAR)));
+      result = min(fresh_small, fresh_large);
+      DebugTxn("http_match", "calculate_freshness_fuzz using min/max --- freshness fuzz = %d", result);
+    } else {
+      result = s->txn_conf->freshness_fuzz_time;
+      DebugTxn("http_match", "calculate_freshness_fuzz --- freshness fuzz = %d", result);
+    }
+  }
+
+  return result;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//
+//      This function takes the request and response headers for a cached
+//      object, and the current HTTP parameters, and decides if the object
+//      is still "fresh enough" to serve.  One of the following values
+//      is returned:
+//
+//          FRESHNESS_FRESH             Fresh enough, serve it
+//          FRESHNESS_WARNING           Stale but client says it's okay
+//          FRESHNESS_STALE             Too stale, don't use
+//
+//////////////////////////////////////////////////////////////////////////////
+HttpTransact::Freshness_t
+HttpTransact::what_is_document_freshness(State *s, HTTPHdr* client_request, HTTPHdr* cached_obj_response)
+{
+  bool heuristic, do_revalidate = false;
+  int age_limit;
+  // These aren't used.
+  //HTTPValCacheControl *cc;
+  //const char *cc_val;
+  int fresh_limit;
+  ink_time_t current_age, response_date;;
+  uint32_t cc_mask, cooked_cc_mask;
+  uint32_t os_specifies_revalidate;
+
+  //////////////////////////////////////////////////////
+  // If config file has a ttl-in-cache field set,     //
+  // it has priority over any other http headers and  //
+  // other configuration parameters.                  //
+  //////////////////////////////////////////////////////
+  if (s->cache_control.ttl_in_cache > 0) {
+    // what matters if ttl is set is not the age of the document
+    // but for how long it has been stored in the cache (resident time)
+    int resident_time = s->current.now - s->response_received_time;
+
+    DebugTxn("http_match", "[..._document_freshness] ttl-in-cache = %d, resident time = %d", s->cache_control.ttl_in_cache,
+          resident_time);
+    if (resident_time > s->cache_control.ttl_in_cache) {
+      return (FRESHNESS_STALE);
+    } else {
+      return (FRESHNESS_FRESH);
+    }
+  }
+
+
+  cooked_cc_mask = cached_obj_response->get_cooked_cc_mask();
+  os_specifies_revalidate = cooked_cc_mask &
+    (MIME_COOKED_MASK_CC_MUST_REVALIDATE | MIME_COOKED_MASK_CC_PROXY_REVALIDATE);
+  cc_mask = MIME_COOKED_MASK_CC_NEED_REVALIDATE_ONCE;
+
+  // Check to see if the server forces revalidation
+
+  if ((cooked_cc_mask & cc_mask) && s->cache_control.revalidate_after <= 0) {
+    DebugTxn("http_match", "[what_is_document_freshness] document stale due to " "server must-revalidate");
+    return FRESHNESS_STALE;
+  }
+
+  response_date = cached_obj_response->get_date();
+  fresh_limit = calculate_document_freshness_limit(s, cached_obj_response, response_date, &heuristic);
+  ink_assert(fresh_limit >= 0);
+
+  // Fuzz the freshness to prevent too many revalidates to popular
+  //  documents at the same time
+  if (s->txn_conf->freshness_fuzz_time >= 0) {
+    fresh_limit = fresh_limit - calculate_freshness_fuzz(s, fresh_limit);
+    fresh_limit = max(0, fresh_limit);
+    fresh_limit = min(NUM_SECONDS_IN_ONE_YEAR, fresh_limit);
+  }
+
+  current_age = HttpTransactHeaders::calculate_document_age(s->request_sent_time, s->response_received_time,
+                                                            cached_obj_response, response_date, s->current.now);
+
+  // Overflow ?
+  if (current_age < 0)
+    current_age = NUM_SECONDS_IN_ONE_YEAR;  // TODO: Should we make a new "max age" define?
+  else
+    current_age = min((time_t)NUM_SECONDS_IN_ONE_YEAR, current_age);
+
+  DebugTxn("http_match", "[what_is_document_freshness] fresh_limit:  %d  current_age: %" PRId64,
+           fresh_limit, (int64_t)current_age);
+
+  /////////////////////////////////////////////////////////
+  // did the admin override the expiration calculations? //
+  // (used only for http).                               //
+  /////////////////////////////////////////////////////////
+  ink_assert(client_request == &s->hdr_info.client_request);
+
+  if (s->txn_conf->cache_when_to_revalidate == 0) {
+    ;
+    // Compute how fresh below
+  } else if (client_request->url_get()->scheme_get_wksidx() == URL_WKSIDX_HTTP) {
+    switch (s->txn_conf->cache_when_to_revalidate) {
+    case 1:                    // Stale if heuristic
+      if (heuristic) {
+        DebugTxn("http_match", "[what_is_document_freshness] config requires FRESHNESS_STALE because heuristic calculation");
+        return (FRESHNESS_STALE);
+      }
+      break;
+    case 2:                    // Always stale
+      DebugTxn("http_match", "[what_is_document_freshness] config " "specifies always FRESHNESS_STALE");
+      return (FRESHNESS_STALE);
+    case 3:                    // Never stale
+      DebugTxn("http_match", "[what_is_document_freshness] config " "specifies always FRESHNESS_FRESH");
+      return (FRESHNESS_FRESH);
+    case 4:                    // Stale if IMS
+      if (client_request->presence(MIME_PRESENCE_IF_MODIFIED_SINCE)) {
+        DebugTxn("http_match", "[what_is_document_freshness] config " "specifies FRESHNESS_STALE if IMS present");
+        return (FRESHNESS_STALE);
+      }
+    default:                   // Bad config, ignore
+      break;
+    }
+  }
+  //////////////////////////////////////////////////////////////////////
+  // the normal expiration policy allows serving a doc from cache if: //
+  //     basic:          (current_age <= fresh_limit)                 //
+  //                                                                  //
+  // this can be modified by client Cache-Control headers:            //
+  //     max-age:        (current_age <= max_age)                     //
+  //     min-fresh:      (current_age <= fresh_limit - min_fresh)     //
+  //     max-stale:      (current_age <= fresh_limit + max_stale)     //
+  //////////////////////////////////////////////////////////////////////
+  age_limit = fresh_limit;      // basic constraint
+  DebugTxn("http_match", "[..._document_freshness] initial age limit: %d", age_limit);
+
+  cooked_cc_mask = client_request->get_cooked_cc_mask();
+  cc_mask = (MIME_COOKED_MASK_CC_MAX_STALE | MIME_COOKED_MASK_CC_MIN_FRESH | MIME_COOKED_MASK_CC_MAX_AGE);
+  if (cooked_cc_mask & cc_mask) {
+    /////////////////////////////////////////////////
+    // if max-stale set, relax the freshness limit //
+    /////////////////////////////////////////////////
+    if (cooked_cc_mask & MIME_COOKED_MASK_CC_MAX_STALE) {
+      if (os_specifies_revalidate) {
+        DebugTxn("http_match", "[...document_freshness] OS specifies revalidation; "
+              "ignoring client's max-stale request...");
+      } else {
+        int max_stale_val = client_request->get_cooked_cc_max_stale();
+
+        if (max_stale_val != INT_MAX)
+          age_limit += max_stale_val;
+        else
+          age_limit = max_stale_val;
+        DebugTxn("http_match", "[..._document_freshness] max-stale set, age limit: %d", age_limit);
+      }
+    }
+    /////////////////////////////////////////////////////
+    // if min-fresh set, constrain the freshness limit //
+    /////////////////////////////////////////////////////
+    if (cooked_cc_mask & MIME_COOKED_MASK_CC_MIN_FRESH) {
+      age_limit = min(age_limit, fresh_limit - client_request->get_cooked_cc_min_fresh());
+      DebugTxn("http_match", "[..._document_freshness] min_fresh set, age limit: %d", age_limit);
+    }
+    ///////////////////////////////////////////////////
+    // if max-age set, constrain the freshness limit //
+    ///////////////////////////////////////////////////
+    if (!s->cache_control.ignore_client_cc_max_age && (cooked_cc_mask & MIME_COOKED_MASK_CC_MAX_AGE)) {
+      int age_val = client_request->get_cooked_cc_max_age();
+      if (age_val == 0)
+        do_revalidate = true;
+      age_limit = min(age_limit, age_val);
+      DebugTxn("http_match", "[..._document_freshness] min_fresh set, age limit: %d", age_limit);
+    }
+  }
+  /////////////////////////////////////////////////////////
+  // config file may have a "revalidate_after" field set //
+  /////////////////////////////////////////////////////////
+  // bug fix changed ">0" to ">=0"
+  if (s->cache_control.revalidate_after >= 0) {
+    // if we want the minimum of the already-computed age_limit and revalidate_after
+//      age_limit = mine(age_limit, s->cache_control.revalidate_after);
+
+    // if instead the revalidate_after overrides all other variables
+    age_limit = s->cache_control.revalidate_after;
+
+    DebugTxn("http_match", "[..._document_freshness] revalidate_after set, age limit: %d", age_limit);
+  }
+
+  DebugTxn("http_match", "document_freshness --- current_age = %" PRId64, (int64_t)current_age);
+  DebugTxn("http_match", "document_freshness --- age_limit   = %d", age_limit);
+  DebugTxn("http_match", "document_freshness --- fresh_limit = %d", fresh_limit);
+  DebugTxn("http_seq", "document_freshness --- current_age = %" PRId64, (int64_t)current_age);
+  DebugTxn("http_seq", "document_freshness --- age_limit   = %d", age_limit);
+  DebugTxn("http_seq", "document_freshness --- fresh_limit = %d", fresh_limit);
+  ///////////////////////////////////////////
+  // now, see if the age is "fresh enough" //
+  ///////////////////////////////////////////
+
+  if (do_revalidate || current_age > age_limit) { // client-modified limit
+    DebugTxn("http_match", "[..._document_freshness] document needs revalidate/too old; "
+            "returning FRESHNESS_STALE");
+    return (FRESHNESS_STALE);
+  } else if (current_age > fresh_limit) {  // original limit
+    if (os_specifies_revalidate) {
+      DebugTxn("http_match", "[..._document_freshness] document is stale and OS specifies revalidation; "
+              "returning FRESHNESS_STALE");
+      return (FRESHNESS_STALE);
+    }
+    DebugTxn("http_match", "[..._document_freshness] document is stale but no revalidation explicitly required; "
+            "returning FRESHNESS_WARNING");
+    return (FRESHNESS_WARNING);
+  } else {
+    DebugTxn("http_match", "[..._document_freshness] document is fresh; returning FRESHNESS_FRESH");
+    return (FRESHNESS_FRESH);
+  }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      HttpTransact::Authentication_t HttpTransact::AuthenticationNeeded(
+//          const OverridableHttpConfigParams *p,
+//          HTTPHdr *client_request,
+//          HTTPHdr *obj_response)
+//
+//      This function takes the current client request, and the headers
+//      from a potential response (e.g. from cache or proxy), and decides
+//      if the object needs to be authenticated with the origin server,
+//      before it can be sent to the client.
+//
+//      The return value describes the authentication process needed.  In
+//      this function, three results are possible:
+//
+//          AUTHENTICATION_SUCCESS              Can serve object directly
+//          AUTHENTICATION_MUST_REVALIDATE      Must revalidate with server
+//          AUTHENTICATION_MUST_PROXY           Must not serve object
+//
+//////////////////////////////////////////////////////////////////////////////
+
+HttpTransact::Authentication_t
+HttpTransact::AuthenticationNeeded(const OverridableHttpConfigParams* p, HTTPHdr* client_request, HTTPHdr* obj_response)
+{
+  ///////////////////////////////////////////////////////////////////////
+  // from RFC2068, sec 14.8, if a client request has the Authorization //
+  // header set, we can't serve it unless the response is public, or   //
+  // if it has a Cache-Control revalidate flag, and we do revalidate.  //
+  ///////////////////////////////////////////////////////////////////////
+
+  if ((p->cache_ignore_auth == 0) && client_request->presence(MIME_PRESENCE_AUTHORIZATION)) {
+    if (obj_response->is_cache_control_set(HTTP_VALUE_MUST_REVALIDATE) ||
+        obj_response->is_cache_control_set(HTTP_VALUE_PROXY_REVALIDATE)) {
+      return AUTHENTICATION_MUST_REVALIDATE;
+    } else if (obj_response->is_cache_control_set(HTTP_VALUE_PROXY_REVALIDATE)) {
+      return AUTHENTICATION_MUST_REVALIDATE;
+    } else if (obj_response->is_cache_control_set(HTTP_VALUE_PUBLIC)) {
+      return AUTHENTICATION_SUCCESS;
+    } else {
+      if (obj_response->field_find("@WWW-Auth", 9) && client_request->method_get_wksidx() == HTTP_WKSIDX_GET)
+        return AUTHENTICATION_CACHE_AUTH;
+      return AUTHENTICATION_MUST_PROXY;
+    }
+  }
+
+  if (obj_response->field_find("@WWW-Auth", 9) && client_request->method_get_wksidx() == HTTP_WKSIDX_GET)
+    return AUTHENTICATION_CACHE_AUTH;
+
+  return (AUTHENTICATION_SUCCESS);
+}
+
+void
+HttpTransact::handle_parent_died(State* s)
+{
+  ink_assert(s->parent_result.r == PARENT_FAIL);
+
+  build_error_response(s, HTTP_STATUS_BAD_GATEWAY, "Next Hop Connection Failed", "connect#failed_connect", NULL);
+  TRANSACT_RETURN(SM_ACTION_SEND_ERROR_CACHE_NOOP, NULL);
+}
+
+void
+HttpTransact::handle_server_died(State* s)
+{
+  const char *reason = NULL;
+  const char *body_type = "UNKNOWN";
+  HTTPStatus status = HTTP_STATUS_BAD_GATEWAY;
+
+  ////////////////////////////////////////////////////////
+  // FIX: all the body types below need to be filled in //
+  ////////////////////////////////////////////////////////
+
+
+  //
+  // congestion control
+  //
+  if (s->pCongestionEntry != NULL) {
+    s->congestion_congested_or_failed = 1;
+    if (s->current.state != CONGEST_CONTROL_CONGESTED_ON_F && s->current.state != CONGEST_CONTROL_CONGESTED_ON_M) {
+      s->pCongestionEntry->failed_at(s->current.now);
+    }
+  }
+
+  switch (s->current.state) {
+  case CONNECTION_ALIVE:       /* died while alive for unknown reason */
+    ink_release_assert(s->hdr_info.response_error != NO_RESPONSE_HEADER_ERROR);
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Unknown Error";
+    body_type = "response#bad_response";
+    break;
+  case CONNECTION_ERROR:
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = (char *) get_error_string(s->cause_of_death_errno);
+    body_type = "connect#failed_connect";
+    break;
+  case OPEN_RAW_ERROR:
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Tunnel Connection Failed";
+    body_type = "connect#failed_connect";
+    break;
+  case CONNECTION_CLOSED:
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Server Hangup";
+    body_type = "connect#hangup";
+    break;
+  case ACTIVE_TIMEOUT:
+    if (s->api_txn_active_timeout_value != -1)
+      DebugTxn("http_timeout", "Maximum active time of %d msec exceeded", s->api_txn_active_timeout_value);
+    status = HTTP_STATUS_GATEWAY_TIMEOUT;
+    reason = "Maximum Transaction Time Exceeded";
+    body_type = "timeout#activity";
+    break;
+  case INACTIVE_TIMEOUT:
+    if (s->api_txn_connect_timeout_value != -1)
+      DebugTxn("http_timeout", "Maximum connect time of %d msec exceeded", s->api_txn_connect_timeout_value);
+    status = HTTP_STATUS_GATEWAY_TIMEOUT;
+    reason = "Connection Timed Out";
+    body_type = "timeout#inactivity";
+    break;
+  case PARSE_ERROR:
+  case BAD_INCOMING_RESPONSE:
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Invalid HTTP Response";
+    body_type = "response#bad_response";
+    break;
+  case CONGEST_CONTROL_CONGESTED_ON_F:
+    status = HTTP_STATUS_SERVICE_UNAVAILABLE;
+    reason = "Origin server congested";
+    if (s->pCongestionEntry)
+      body_type = s->pCongestionEntry->getErrorPage();
+    else
+      body_type = "congestion#retryAfter";
+    s->hdr_info.response_error = TOTAL_RESPONSE_ERROR_TYPES;
+    break;
+  case CONGEST_CONTROL_CONGESTED_ON_M:
+    status = HTTP_STATUS_SERVICE_UNAVAILABLE;
+    reason = "Too many users";
+    if (s->pCongestionEntry)
+      body_type = s->pCongestionEntry->getErrorPage();
+    else
+      body_type = "congestion#retryAfter";
+    s->hdr_info.response_error = TOTAL_RESPONSE_ERROR_TYPES;
+    break;
+  case STATE_UNDEFINED:
+  case TRANSACTION_COMPLETE:
+  default:                     /* unknown death */
+    ink_release_assert(!"[handle_server_died] Unreasonable state - not dead, shouldn't be here");
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = NULL;
+    body_type = "response#bad_response";
+    break;
+  }
+
+  if (s->pCongestionEntry && s->pCongestionEntry->F_congested() && status != HTTP_STATUS_SERVICE_UNAVAILABLE) {
+    s->pCongestionEntry->stat_inc_F();
+    CONGEST_SUM_GLOBAL_DYN_STAT(congested_on_F_stat, 1);
+    status = HTTP_STATUS_SERVICE_UNAVAILABLE;
+    reason = "Service Unavailable";
+    body_type = s->pCongestionEntry->getErrorPage();
+    s->hdr_info.response_error = TOTAL_RESPONSE_ERROR_TYPES;
+  }
+  ////////////////////////////////////////////////////////
+  // FIX: comment stuff above and below here, not clear //
+  ////////////////////////////////////////////////////////
+
+  switch (s->hdr_info.response_error) {
+  case NON_EXISTANT_RESPONSE_HEADER:
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "No Response Header From Server";
+    body_type = "response#bad_response";
+    break;
+  case MISSING_REASON_PHRASE:
+  case NO_RESPONSE_HEADER_ERROR:
+  case NOT_A_RESPONSE_HEADER:
+#ifdef REALLY_NEED_TO_CHECK_DATE_VALIDITY
+  case BOGUS_OR_NO_DATE_IN_RESPONSE:
+#endif
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Malformed Server Response";
+    body_type = "response#bad_response";
+    break;
+  case MISSING_STATUS_CODE:
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Malformed Server Response Status";
+    body_type = "response#bad_response";
+    break;
+  default:
+    break;
+  }
+
+  if (reason == NULL) {
+    status = HTTP_STATUS_BAD_GATEWAY;
+    reason = "Server Connection Failed";
+    body_type = "connect#failed_connect";
+  }
+
+  build_error_response(s, status, reason, body_type, NULL);
+
+  return;
+}
+
+// return true if the response to the given request is likely cacheable
+// This function is called by build_request() to determine if the conditional
+// headers should be removed from server request.
+bool
+HttpTransact::is_request_likely_cacheable(State* s, HTTPHdr* request)
+{
+  if ((s->method == HTTP_WKSIDX_GET || s->api_req_cacheable == true) &&
+      !request->presence(MIME_PRESENCE_AUTHORIZATION) &&
+      (!request->presence(MIME_PRESENCE_RANGE) || s->txn_conf->cache_range_write)) {
+    return true;
+  }
+  return false;
+}
+
+void
+HttpTransact::build_request(State* s, HTTPHdr* base_request, HTTPHdr* outgoing_request, HTTPVersion outgoing_version)
+{
+  // this part is to restore the original URL in case, multiple cache
+  // lookups have happened - client request has been changed as the result
+  //
+  // notice that currently, based_request IS client_request
+  if (base_request == &s->hdr_info.client_request) {
+    if (s->redirect_info.redirect_in_process) {
+      // this is for auto redirect
+      URL *r_url = &s->redirect_info.redirect_url;
+
+      ink_assert(r_url->valid());
+      base_request->url_get()->copy(r_url);
+    } else {
+      // this is for multiple cache lookup
+      URL *o_url = &s->cache_info.original_url;
+
+      if (o_url->valid())
+        base_request->url_get()->copy(o_url);
+    }
+  }
+
+  HttpTransactHeaders::copy_header_fields(base_request, outgoing_request, s->txn_conf->fwd_proxy_auth_to_parent);
+  add_client_ip_to_outgoing_request(s, outgoing_request);
+  HttpTransactHeaders::remove_privacy_headers_from_request(s->http_config_param, s->txn_conf, outgoing_request);
+  HttpTransactHeaders::add_global_user_agent_header_to_request(s->http_config_param, outgoing_request);
+  handle_request_keep_alive_headers(s, outgoing_version, outgoing_request);
+  HttpTransactHeaders::handle_conditional_headers(&s->cache_info, outgoing_request);
+
+  if (s->next_hop_scheme < 0)
+    s->next_hop_scheme = URL_WKSIDX_HTTP;
+  if (s->orig_scheme < 0)
+    s->orig_scheme = URL_WKSIDX_HTTP;
+
+  if (s->txn_conf->insert_request_via_string)
+    HttpTransactHeaders::insert_via_header_in_request(s, outgoing_request);
+
+  // We build 1.1 request header and then convert as necessary to
+  //  the appropriate version in HttpTransact::build_request
+  outgoing_request->version_set(HTTPVersion(1, 1));
+
+  // Make sure our request version is defined
+  ink_assert(outgoing_version != HTTPVersion(0, 0));
+
+  // HttpTransactHeaders::convert_request(outgoing_version, outgoing_request); // commented out this idea
+
+
+  // Check whether a Host header field is missing from a 1.0 or 1.1 request.
+  if (outgoing_version != HTTPVersion(0, 9) && !outgoing_request->presence(MIME_PRESENCE_HOST)) {
+    URL *url = outgoing_request->url_get();
+    int host_len;
+    const char *host = url->host_get(&host_len);
+
+    // Add a ':port' to the HOST header if the request is not going
+    // to the default port.
+    int port = url->port_get();
+    if (port != url_canonicalize_port(URL_TYPE_HTTP, 0)) {
+      char *buf = (char *) alloca(host_len + 15);
+      memcpy(buf, host, host_len);
+      host_len += snprintf(buf + host_len, 15, ":%d", port);
+      outgoing_request->value_set(MIME_FIELD_HOST, MIME_LEN_HOST, buf, host_len);
+    } else {
+      outgoing_request->value_set(MIME_FIELD_HOST, MIME_LEN_HOST, host, host_len);
+    }
+  }
+
+  if (s->current.server == &s->server_info &&
+      (s->next_hop_scheme == URL_WKSIDX_HTTP || s->next_hop_scheme == URL_WKSIDX_HTTPS ||
+       s->next_hop_scheme == URL_WKSIDX_WS || s->next_hop_scheme == URL_WKSIDX_WSS)) {
+    DebugTxn("http_trans", "[build_request] removing host name from url");
+    HttpTransactHeaders::remove_host_name_from_url(outgoing_request);
+  }
+
+  // If we're going to a parent proxy, make sure we pass host and port
+  // in the URL even if we didn't get them (e.g. transparent proxy)
+  if (s->current.request_to == PARENT_PROXY &&
+      !outgoing_request->is_target_in_url()) {
+    DebugTxn("http_trans", "[build_request] adding target to URL for parent proxy");
+
+    // No worry about HTTP/0.9 because we reject forward proxy requests that
+    // don't have a host anywhere.
+    outgoing_request->set_url_target_from_host_field();
+  }
+
+  // If the response is most likely not cacheable, eg, request with Authorization,
+  // do we really want to remove conditional headers to get large 200 response?
+  // Answer: NO.  Since if the response is most likely not cacheable,
+  // we don't remove conditional headers so that for a non-200 response
+  // from the O.S., we will save bandwidth between proxy and O.S.
+  if (s->current.mode == GENERIC_PROXY) {
+    if (is_request_likely_cacheable(s, base_request)) {
+      if (s->txn_conf->cache_when_to_revalidate != 4) {
+        DebugTxn("http_trans", "[build_request] " "request like cacheable and conditional headers removed");
+        HttpTransactHeaders::remove_conditional_headers(outgoing_request);
+      } else
+        DebugTxn("http_trans", "[build_request] " "request like cacheable but keep conditional headers");
+    } else {
+      // In this case, we send a conditional request
+      // instead of the normal non-conditional request.
+      DebugTxn("http_trans", "[build_request] " "request not like cacheable and conditional headers not removed");
+    }
+  }
+
+  if (s->http_config_param->send_100_continue_response) {
+    HttpTransactHeaders::remove_100_continue_headers(s, outgoing_request);
+    DebugTxn("http_trans", "[build_request] request expect 100-continue headers removed");
+  }
+
+  s->request_sent_time = ink_cluster_time();
+  s->current.now = s->request_sent_time;
+  // The assert is backwards in this case because request is being (re)sent.
+  ink_assert(s->request_sent_time >= s->response_received_time);
+
+
+  DebugTxn("http_trans", "[build_request] request_sent_time: %" PRId64, (int64_t)s->request_sent_time);
+  if (!s->cop_test_page)
+    DUMP_HEADER("http_hdrs", outgoing_request, s->state_machine_id, "Proxy's Request");
+
+  HTTP_INCREMENT_TRANS_STAT(http_outgoing_requests_stat);
+}
+
+// build a (status_code) response based upon the given info
+
+
+void
+HttpTransact::build_response(State* s, HTTPHdr* base_response, HTTPHdr* outgoing_response, HTTPVersion outgoing_version)
+{
+  build_response(s, base_response, outgoing_response, outgoing_version, HTTP_STATUS_NONE, NULL);
+  return;
+}
+
+
+void
+HttpTransact::build_response(State* s, HTTPHdr* outgoing_response, HTTPVersion outgoing_version, HTTPStatus status_code,
+                             const char *reason_phrase)
+{
+  build_response(s, NULL, outgoing_response, outgoing_version, status_code, reason_phrase);
+  return;
+}
+
+void
+HttpTransact::build_response(State* s, HTTPHdr* base_response, HTTPHdr* outgoing_response, HTTPVersion outgoing_version,
+                             HTTPStatus status_code, const char *reason_phrase)
+{
+  if (reason_phrase == NULL) {
+    reason_phrase = http_hdr_reason_lookup(status_code);
+  }
+
+  if (base_response == NULL) {
+    HttpTransactHeaders::build_base_response(outgoing_response, status_code, reason_phrase, strlen(reason_phrase), s->current.now);
+  } else {
+    if ((status_code == HTTP_STATUS_NONE) || (status_code == base_response->status_get())) {
+      HttpTransactHeaders::copy_header_fields(base_response, outgoing_response, s->txn_conf->fwd_proxy_auth_to_parent);
+
+      if (s->txn_conf->insert_age_in_response)
+        HttpTransactHeaders::insert_time_and_age_headers_in_response(s->request_sent_time, s->response_received_time,
+                                                                     s->current.now, base_response, outgoing_response);
+
+      // Note: We need to handle the "Content-Length" header first here
+      //  since handle_content_length_header()
+      //  determines whether we accept origin server's content-length.
+      //  We need to have made a decision regard the content-length
+      //  before processing the keep_alive headers
+      //
+      handle_content_length_header(s, outgoing_response, base_response);
+    } else
+      switch (status_code) {
+      case HTTP_STATUS_NOT_MODIFIED:
+        HttpTransactHeaders::build_base_response(outgoing_response, status_code, reason_phrase, strlen(reason_phrase),
+                                                 s->current.now);
+
+        // According to RFC 2616, Section 10.3.5,
+        // a 304 response MUST contain Date header,
+        // Etag and/or Content-location header,
+        // and Expires, Cache-control, and Vary
+        // (if they might be changed).
+        // Since a proxy doesn't know if a header differs from
+        // a user agent's cached document or not, all are sent.
+        {
+          static const char *field_name[] = { MIME_FIELD_ETAG,
+                                              MIME_FIELD_CONTENT_LOCATION,
+                                              MIME_FIELD_EXPIRES,
+                                              MIME_FIELD_CACHE_CONTROL,
+                                              MIME_FIELD_VARY
+          };
+          static int field_len[] = { MIME_LEN_ETAG,
+                                     MIME_LEN_CONTENT_LOCATION,
+                                     MIME_LEN_EXPIRES,
+                                     MIME_LEN_CACHE_CONTROL,
+                                     MIME_LEN_VARY
+          };
+          static uint64_t field_presence[] = { MIME_PRESENCE_ETAG,
+                                               MIME_PRESENCE_CONTENT_LOCATION,
+                                               MIME_PRESENCE_EXPIRES,
+                                               MIME_PRESENCE_CACHE_CONTROL,
+                                               MIME_PRESENCE_VARY
+          };
+          MIMEField *field;
+          int len;
+          const char *value;
+
+          for (size_t i = 0; i < sizeof(field_len) / sizeof(field_len[0]); i++) {
+            if (base_response->presence(field_presence[i])) {
+              field = base_response->field_find(field_name[i], field_len[i]);
+              value = field->value_get(&len);
+              outgoing_response->value_append(field_name[i], field_len[i], value, len, 0);
+            }
+          }
+        }
+        break;
+
+      case HTTP_STATUS_PRECONDITION_FAILED:
+        // fall through
+      case HTTP_STATUS_RANGE_NOT_SATISFIABLE:
+        HttpTransactHeaders::build_base_response(outgoing_response, status_code, reason_phrase,
+                                                 strlen(reason_phrase), s->current.now);
+        break;
+      default:
+        // ink_assert(!"unexpected status code in build_response()");
+        break;
+      }
+  }
+
+  // the following is done whether base_response == NULL or not
+
+  // If the response is prohibited from containing a body,
+  //  we know the content length is trustable for keep-alive
+  if (is_response_body_precluded(status_code, s->method))
+    s->hdr_info.trust_response_cl = true;
+
+  handle_response_keep_alive_headers(s, outgoing_version, outgoing_response);
+
+  if (s->next_hop_scheme < 0)
+    s->next_hop_scheme = URL_WKSIDX_HTTP;
+
+  // Add HSTS header (Strict-Transport-Security) if max-age is set and the request was https
+  if (s->orig_scheme == URL_WKSIDX_HTTPS && s->txn_conf->proxy_response_hsts_max_age >= 0) {
+    Debug("http_hdrs", "hsts max-age=%" PRId64, s->txn_conf->proxy_response_hsts_max_age);
+    HttpTransactHeaders::insert_hsts_header_in_response(s, outgoing_response);
+  }
+
+  if (s->txn_conf->insert_response_via_string)
+    HttpTransactHeaders::insert_via_header_in_response(s, outgoing_response);
+
+  HttpTransactHeaders::convert_response(outgoing_version, outgoing_response);
+
+  // process reverse mappings on the location header
+  // TS-1364: do this regardless of response code
+  response_url_remap(outgoing_response);
+
+  if (s->http_config_param->enable_http_stats) {
+    HttpTransactHeaders::generate_and_set_squid_codes(outgoing_response, s->via_string, &s->squid_codes);
+  }
+
+  HttpTransactHeaders::add_server_header_to_response(s->txn_conf, outgoing_response);
+
+  // auth-response update
+ // if (!s->state_machine->authAdapter.disabled()) {
+  //  s->state_machine->authAdapter.UpdateResponseHeaders(outgoing_response);
+ // }
+
+  if (diags->on()) {
+    if (base_response) {
+      if (!s->cop_test_page)
+        DUMP_HEADER("http_hdrs", base_response, s->state_machine_id, "Base Header for Building Response");
+    }
+    if (!s->cop_test_page)
+      DUMP_HEADER("http_hdrs", outgoing_response, s->state_machine_id, "Proxy's Response 2");
+  }
+
+  return;
+}
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void HttpTransact::build_error_response(
+//          State *s,
+//          HTTPStatus status_code,
+//          char *reason_phrase_or_null,
+//          char *error_body_type,
+//          char *format, ...)
+//
+//      This method sets the requires state for an error reply, including
+//      the error text, status code, reason phrase, and reply headers.  The
+//      caller calls the method with the HttpTransact::State <s>, the
+//      HTTP status code <status_code>, a user-specified reason phrase
+//      string (or NULL) <reason_phrase_or_null>, and a printf-like
+//      text format and arguments which are appended to the error text.
+//
+//      The <error_body_type> is the error message type, as specified by
+//      the HttpBodyFactory customized error page system.
+//
+//      If the descriptive text <format> is not NULL or "", it is also
+//      added to the error text body as descriptive text in the error body.
+//      If <reason_phrase_or_null> is NULL, the default HTTP reason phrase
+//      is used.  This routine DOES NOT check for buffer overflows.  The
+//      caller should keep the messages small to be sure the error text
+//      fits in the error buffer (ok, it's nasty, but at least I admit it!).
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+HttpTransact::build_error_response(State *s, HTTPStatus status_code, const char *reason_phrase_or_null,
+                                   const char *error_body_type, const char *format, ...)
+{
+  va_list ap;
+  const char *reason_phrase;
+  char *url_string;
+  char body_language[256], body_type[256];
+
+  if (NULL == error_body_type) {
+    error_body_type = "default";
+  }
+
+  ////////////////////////////////////////////////////////////
+  // get the url --- remember this is dynamically allocated //
+  ////////////////////////////////////////////////////////////
+  if (s->hdr_info.client_request.valid()) {
+    url_string = s->hdr_info.client_request.url_string_get(&s->arena);
+  } else {
+    url_string = NULL;
+  }
+
+  //////////////////////////////////////////////////////
+  //  If there is a request body, we must disable     //
+  //  keep-alive to prevent the body being read as    //
+  //  the next header (unless we've already drained   //
+  //  which we do for NTLM auth)                      //
+  //////////////////////////////////////////////////////
+  if (s->hdr_info.request_content_length != 0 &&
+      s->state_machine->client_request_body_bytes < s->hdr_info.request_content_length) {
+    s->client_info.keep_alive = HTTP_NO_KEEPALIVE;
+  } else {
+    // We don't have a request body.  Since we are
+    //  generating the error, we know we can trust
+    //  the content-length
+    s->hdr_info.trust_response_cl = true;
+  }
+
+  switch (status_code) {
+  case HTTP_STATUS_BAD_REQUEST:
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_ERROR);
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_HEADER_SYNTAX);
+    break;
+  case HTTP_STATUS_BAD_GATEWAY:
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_CONNECTION);
+    break;
+  case HTTP_STATUS_GATEWAY_TIMEOUT:
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_TIMEOUT);
+    break;
+  case HTTP_STATUS_NOT_FOUND:
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_SERVER);
+    break;
+  case HTTP_STATUS_FORBIDDEN:
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_ERROR);
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_FORBIDDEN);
+    break;
+  case HTTP_STATUS_HTTPVER_NOT_SUPPORTED:
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_ERROR);
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_SERVER);
+    break;
+  case HTTP_STATUS_INTERNAL_SERVER_ERROR:
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_DNS_FAILURE);
+    break;
+  case HTTP_STATUS_MOVED_TEMPORARILY:
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_SERVER);
+    break;
+  case HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED:
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_ERROR);
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_AUTHORIZATION);
+    break;
+  case HTTP_STATUS_UNAUTHORIZED:
+    SET_VIA_STRING(VIA_CLIENT_REQUEST, VIA_CLIENT_ERROR);
+    SET_VIA_STRING(VIA_ERROR_TYPE, VIA_ERROR_AUTHORIZATION);
+    break;
+  default:
+    break;
+  }
+
+  reason_phrase = (reason_phrase_or_null ? reason_phrase_or_null : (char *) (http_hdr_reason_lookup(status_code)));
+  if (unlikely(!reason_phrase))
+    reason_phrase = "Unknown HTTP Status";
+
+  // set the source to internal so that chunking is handled correctly
+  s->source = SOURCE_INTERNAL;
+  build_response(s, &s->hdr_info.client_response, s->client_info.http_version, status_code, reason_phrase);
+
+  if (status_code == HTTP_STATUS_SERVICE_UNAVAILABLE) {
+    if (s->pCongestionEntry != NULL) {
+      int ret_tmp;
+      int retry_after = s->pCongestionEntry->client_retry_after();
+
+      s->congestion_control_crat = retry_after;
+      if (s->hdr_info.client_response.value_get(MIME_FIELD_RETRY_AFTER, MIME_LEN_RETRY_AFTER, &ret_tmp) == NULL)
+        s->hdr_info.client_response.value_set_int(MIME_FIELD_RETRY_AFTER, MIME_LEN_RETRY_AFTER, retry_after);
+    }
+  }
+  if (status_code == HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED &&
+      s->method == HTTP_WKSIDX_CONNECT && s->hdr_info.client_response.presence(MIME_PRESENCE_PROXY_CONNECTION)) {
+    int has_ua_msie = 0;
+    int user_agent_value_len, slen;
+    const char *user_agent_value, *c, *e;
+
+    user_agent_value = s->hdr_info.client_request.value_get(MIME_FIELD_USER_AGENT, MIME_LEN_USER_AGENT, &user_agent_value_len);
+    if (user_agent_value && user_agent_value_len >= 4) {
+      c = user_agent_value;
+      e = c + user_agent_value_len - 4;
+      while (1) {
+        slen = (int) (e - c);
+        c = (const char *) memchr(c, 'M', slen);
+        if (c == NULL || (e - c) < 3)
+          break;
+        if ((c[1] == 'S') && (c[2] == 'I') && (c[3] == 'E')) {
+          has_ua_msie = 1;
+          break;
+        }
+        c++;
+      }
+    }
+
+    if (has_ua_msie)
+      s->hdr_info.client_response.value_set(MIME_FIELD_PROXY_CONNECTION, MIME_LEN_PROXY_CONNECTION, "close", 5);
+  }
+  // Add a bunch of headers to make sure that caches between
+  // the Traffic Server and the client do not cache the error
+  // page.
+  s->hdr_info.client_response.value_set(MIME_FIELD_CACHE_CONTROL, MIME_LEN_CACHE_CONTROL, "no-store", 8);
+  // Make sure there are no Expires and Last-Modified headers.
+  s->hdr_info.client_response.field_delete(MIME_FIELD_EXPIRES, MIME_LEN_EXPIRES);
+  s->hdr_info.client_response.field_delete(MIME_FIELD_LAST_MODIFIED, MIME_LEN_LAST_MODIFIED);
+
+  if ((status_code == HTTP_STATUS_TEMPORARY_REDIRECT ||
+       status_code == HTTP_STATUS_MOVED_TEMPORARILY ||
+       status_code == HTTP_STATUS_MOVED_PERMANENTLY) &&
+      s->remap_redirect) {
+    s->hdr_info.client_response.value_set(MIME_FIELD_LOCATION, MIME_LEN_LOCATION, s->remap_redirect, strlen(s->remap_redirect));
+  }
+
+
+
+  ////////////////////////////////////////////////////////////////////
+  // create the error message using the "body factory", which will  //
+  // build a customized error message if available, or generate the //
+  // old style internal defaults otherwise --- the body factory     //
+  // supports language targeting using the Accept-Language header   //
+  ////////////////////////////////////////////////////////////////////
+
+  int64_t len;
+  char * new_msg;
+
+  va_start(ap, format);
+  new_msg = body_factory->fabricate_with_old_api(error_body_type, s, 8192,
+                                                       &len,
+                                                       body_language, sizeof(body_language),
+                                                       body_type, sizeof(body_type),
+                                                       format, ap);
+  va_end(ap);
+
+  // After the body factory is called, a new "body" is allocated, and we must replace it. It is
+  // unfortunate that there's no way to avoid this fabrication even when there is no substitutions...
+  s->free_internal_msg_buffer();
+  s->internal_msg_buffer = new_msg;
+  s->internal_msg_buffer_size = len;
+  s->internal_msg_buffer_index = 0;
+  s->internal_msg_buffer_fast_allocator_size = -1;
+
+  s->hdr_info.client_response.value_set(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE, body_type, strlen(body_type));
+  s->hdr_info.client_response.value_set(MIME_FIELD_CONTENT_LANGUAGE, MIME_LEN_CONTENT_LANGUAGE, body_language,
+                                        strlen(body_language));
+
+  ////////////////////////////////////////
+  // log a description in the error log //
+  ////////////////////////////////////////
+
+  if (s->current.state == CONNECTION_ERROR) {
+    char *reason_buffer;
+    int buf_len = sizeof(char) * (strlen(get_error_string(s->cause_of_death_errno)) + 50);
+    reason_buffer = (char *) alloca(buf_len);
+    snprintf(reason_buffer, buf_len, "Connect Error <%s/%d>", get_error_string(s->cause_of_death_errno), s->cause_of_death_errno);
+    reason_phrase = reason_buffer;
+  }
+
+  if (s->http_config_param->errors_log_error_pages && status_code >= HTTP_STATUS_BAD_REQUEST) {
+    char ip_string[INET6_ADDRSTRLEN];
+
+    Log::error("RESPONSE: sent %s status %d (%s) for '%s'", 
+        ats_ip_ntop(&s->client_info.addr.sa, ip_string, sizeof(ip_string)), 
+        status_code, 
+        reason_phrase,
+        (url_string ? url_string : "<none>"));
+  }
+
+  if (url_string) {
+    s->arena.str_free(url_string);
+  }
+
+  s->next_action = SM_ACTION_SEND_ERROR_CACHE_NOOP;
+  return;
+}
+
+void
+HttpTransact::build_redirect_response(State* s)
+{
+  DebugTxn("http_redirect", "[HttpTransact::build_redirect_response]");
+  URL *u;
+  const char *old_host;
+  int old_host_len;
+  const char *new_url = NULL;
+  int new_url_len;
+  char *to_free = NULL;
+  char body_language[256], body_type[256];
+
+  HTTPStatus status_code = HTTP_STATUS_MOVED_TEMPORARILY;
+  char *reason_phrase = (char *) (http_hdr_reason_lookup(status_code));
+
+  build_response(s, &s->hdr_info.client_response, s->client_info.http_version, status_code, reason_phrase);
+
+  //////////////////////////////////////////////////////////
+  // figure out what new url should be.  this little hack //
+  // inserts expanded hostname into old url in order to   //
+  // get scheme information, then puts the old url back.  //
+  //////////////////////////////////////////////////////////
+  u = s->hdr_info.client_request.url_get();
+  old_host = u->host_get(&old_host_len);
+  u->host_set(s->dns_info.lookup_name, strlen(s->dns_info.lookup_name));
+  new_url = to_free = u->string_get(&s->arena, &new_url_len);
+  if (new_url == NULL) {
+    new_url = "";
+  }
+  u->host_set(old_host, old_host_len);
+
+  //////////////////////////
+  // set redirect headers //
+  //////////////////////////
+  HTTPHdr *h = &s->hdr_info.client_response;
+  if (s->txn_conf->insert_response_via_string) {
+    const char pa[] = "Proxy-agent";
+
+    h->value_append(pa, sizeof(pa) - 1, s->http_config_param->proxy_response_via_string,
+                    s->http_config_param->proxy_response_via_string_len);
+  }
+  h->value_set(MIME_FIELD_LOCATION, MIME_LEN_LOCATION, new_url, new_url_len);
+
+  //////////////////////////
+  // set descriptive text //
+  //////////////////////////
+  s->internal_msg_buffer_index = 0;
+  s->free_internal_msg_buffer();
+  s->internal_msg_buffer_fast_allocator_size = -1;
+  s->internal_msg_buffer = body_factory->fabricate_with_old_api_build_va("redirect#moved_temporarily", s, 8192,
+                                                                         &s->internal_msg_buffer_size,
+                                                                         body_language, sizeof(body_language),
+                                                                         body_type, sizeof(body_type), 
+                                                                         "%s <a href=\"%s\">%s</a>.  %s.",
+                                                                         "The document you requested is now",
+                                                                         new_url, new_url,
+                                                                         "Please update your documents and bookmarks accordingly", NULL);
+
+
+  h->set_content_length(s->internal_msg_buffer_size);
+  h->value_set(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE, "text/html", 9);
+
+  s->arena.str_free(to_free);
+}
+
+const char *
+HttpTransact::get_error_string(int erno)
+{
+  if (erno >= 0) {
+    return (strerror(erno));
+  } else {
+    switch (-erno) {
+    case ENET_THROTTLING:
+      return ("throttling");
+    case ESOCK_DENIED:
+      return ("socks error - denied");
+    case ESOCK_TIMEOUT:
+      return ("socks error - timeout");
+    case ESOCK_NO_SOCK_SERVER_CONN:
+      return ("socks error - no server connection");
+//              this assumes that the following case occurs
+//              when HttpSM.cc::state_origin_server_read_response
+//                 receives an HTTP_EVENT_EOS. (line 1729 in HttpSM.cc,
+//                 version 1.145.2.13.2.57)
+    case UNKNOWN_INTERNAL_ERROR:
+      return ("internal error - server connection terminated");
+    default:
+      return ("");
+    }
+  }
+}
+
+ink_time_t
+ink_cluster_time(void)
+{
+  int highest_delta;
+
+#ifdef DEBUG
+  ink_mutex_acquire(&http_time_lock);
+  ink_time_t local_time = ink_get_hrtime() / HRTIME_SECOND;
+  last_http_local_time = local_time;
+  ink_mutex_release(&http_time_lock);
+#else
+  ink_time_t local_time = ink_get_hrtime() / HRTIME_SECOND;
+#endif
+
+  highest_delta = (int) HttpConfig::m_master.cluster_time_delta;
+//     highest_delta =
+//      lmgmt->record_data->readInteger("proxy.process.http.cluster_delta",
+//                                      &found);
+//     if (! found) {
+//      ink_assert(!"Highest delta config value not found!");
+//      highest_delta = 0L;
+//     }
+
+  Debug("http_trans", "[ink_cluster_time] local: %" PRId64 ", highest_delta: %d, cluster: %" PRId64,
+        (int64_t)local_time, highest_delta, (int64_t)(local_time + (ink_time_t) highest_delta));
+
+  ink_assert(highest_delta >= 0);
+
+  return local_time + (ink_time_t) highest_delta;
+}
+
+//
+// The stat functions
+//
+void
+HttpTransact::histogram_response_document_size(State* s, int64_t doc_size)
+{
+  if (doc_size >= 0 && doc_size <= 100) {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_100_stat);
+  } else if (doc_size <= 1024) {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_1K_stat);
+  } else if (doc_size <= 3072) {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_3K_stat);
+  } else if (doc_size <= 5120) {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_5K_stat);
+  } else if (doc_size <= 10240) {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_10K_stat);
+  } else if (doc_size <= 1048576) {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_1M_stat);
+  } else {
+    HTTP_INCREMENT_TRANS_STAT(http_response_document_size_inf_stat);
+  }
+  return;
+}
+
+void
+HttpTransact::histogram_request_document_size(State* s, int64_t doc_size)
+{
+  if (doc_size >= 0 && doc_size <= 100) {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_100_stat);
+  } else if (doc_size <= 1024) {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_1K_stat);
+  } else if (doc_size <= 3072) {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_3K_stat);
+  } else if (doc_size <= 5120) {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_5K_stat);
+  } else if (doc_size <= 10240) {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_10K_stat);
+  } else if (doc_size <= 1048576) {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_1M_stat);
+  } else {
+    HTTP_INCREMENT_TRANS_STAT(http_request_document_size_inf_stat);
+  }
+  return;
+}
+
+void
+HttpTransact::user_agent_connection_speed(State* s, ink_hrtime transfer_time, int64_t nbytes)
+{
+  float bytes_per_hrtime = (transfer_time == 0) ? (nbytes) : ((float) nbytes / (float) (int64_t) transfer_time);
+  int bytes_per_sec = (int) (bytes_per_hrtime * HRTIME_SECOND);
+
+  if (bytes_per_sec <= 100) {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_100_stat);
+  } else if (bytes_per_sec <= 1024) {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_1K_stat);
+  } else if (bytes_per_sec <= 10240) {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_10K_stat);
+  } else if (bytes_per_sec <= 102400) {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_100K_stat);
+  } else if (bytes_per_sec <= 1048576) {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_1M_stat);
+  } else if (bytes_per_sec <= 10485760) {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_10M_stat);
+  } else {
+    HTTP_INCREMENT_TRANS_STAT(http_user_agent_speed_bytes_per_sec_100M_stat);
+  }
+
+  return;
+}
+
+/*
+ * added request_process_time stat for loadshedding foo
+ */
+void
+HttpTransact::client_result_stat(State* s, ink_hrtime total_time, ink_hrtime request_process_time)
+{
+  ClientTransactionResult_t client_transaction_result = CLIENT_TRANSACTION_RESULT_UNDEFINED;
+
+  ///////////////////////////////////////////////////////
+  // don't count errors we generated as hits or misses //
+  ///////////////////////////////////////////////////////
+  if ((s->source == SOURCE_INTERNAL) && (s->hdr_info.client_response.status_get() >= 400)) {
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_ERROR_OTHER;
+  }
+
+  switch (s->squid_codes.log_code) {
+  case SQUID_LOG_ERR_CONNECT_FAIL:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_miss_cold_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_ERROR_CONNECT_FAIL;
+    break;
+
+  case SQUID_LOG_TCP_MEM_HIT:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_hit_mem_fresh_stat);
+  case SQUID_LOG_TCP_HIT:
+    // It's possible to have two stat's instead of one, if needed.
+    HTTP_INCREMENT_TRANS_STAT(http_cache_hit_fresh_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_HIT_FRESH;
+    break;
+
+  case SQUID_LOG_TCP_REFRESH_HIT:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_hit_reval_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_HIT_REVALIDATED;
+    break;
+
+  case SQUID_LOG_TCP_IMS_HIT:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_hit_ims_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_HIT_FRESH;
+    break;
+
+  case SQUID_LOG_TCP_REF_FAIL_HIT:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_hit_stale_served_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_HIT_FRESH;
+    break;
+
+  case SQUID_LOG_TCP_MISS:
+    if ((GET_VIA_STRING(VIA_CACHE_RESULT) == VIA_IN_CACHE_NOT_ACCEPTABLE)
+        || (GET_VIA_STRING(VIA_CACHE_RESULT) == VIA_CACHE_MISS)) {
+      HTTP_INCREMENT_TRANS_STAT(http_cache_miss_cold_stat);
+      client_transaction_result = CLIENT_TRANSACTION_RESULT_MISS_COLD;
+    } else {
+      // FIX: what case is this for?  can it ever happen?
+      HTTP_INCREMENT_TRANS_STAT(http_cache_miss_uncacheable_stat);
+      client_transaction_result = CLIENT_TRANSACTION_RESULT_MISS_UNCACHABLE;
+    }
+    break;
+
+  case SQUID_LOG_TCP_REFRESH_MISS:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_miss_changed_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_MISS_CHANGED;
+    break;
+
+  case SQUID_LOG_TCP_CLIENT_REFRESH:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_miss_client_no_cache_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_MISS_CLIENT_NO_CACHE;
+    break;
+
+  case SQUID_LOG_TCP_IMS_MISS:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_miss_ims_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_MISS_COLD;
+    break;
+
+  case SQUID_LOG_TCP_SWAPFAIL:
+    HTTP_INCREMENT_TRANS_STAT(http_cache_read_error_stat);
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_HIT_FRESH;
+    break;
+
+  case SQUID_LOG_ERR_READ_TIMEOUT:
+  case SQUID_LOG_TCP_DENIED:
+    // No cache result due to error
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_ERROR_OTHER;
+    break;
+
+  default:
+    // FIX: What is the conditional below doing?
+//          if (s->local_trans_stats[http_cache_lookups_stat].count == 1L)
+//              HTTP_INCREMENT_TRANS_STAT(http_cache_miss_cold_stat);
+
+    // FIX: I suspect the following line should not be set here,
+    //      because it overrides the error classification above.
+    //      Commenting out.
+    // client_transaction_result = CLIENT_TRANSACTION_RESULT_MISS_COLD;
+
+    break;
+  }
+
+  //////////////////////////////////////////
+  // don't count aborts as hits or misses //
+  //////////////////////////////////////////
+  if (s->client_info.abort == ABORTED) {
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_ERROR_ABORT;
+  } else if (s->client_info.abort == MAYBE_ABORTED) {
+    client_transaction_result = CLIENT_TRANSACTION_RESULT_ERROR_POSSIBLE_ABORT;
+  }
+  // Count the status codes, assuming the client didn't abort (i.e. there is an m_http)
+  if ((s->source != SOURCE_NONE) && (s->client_info.abort == DIDNOT_ABORT)) {
+    int status_code = s->hdr_info.client_response.status_get();
+
+    switch(status_code) {
+    case 100: HTTP_INCREMENT_TRANS_STAT(http_response_status_100_count_stat); break;
+    case 101: HTTP_INCREMENT_TRANS_STAT(http_response_status_101_count_stat); break;
+    case 200: HTTP_INCREMENT_TRANS_STAT(http_response_status_200_count_stat); break;
+    case 201: HTTP_INCREMENT_TRANS_STAT(http_response_status_201_count_stat); break;
+    case 202: HTTP_INCREMENT_TRANS_STAT(http_response_status_202_count_stat); break;
+    case 203: HTTP_INCREMENT_TRANS_STAT(http_response_status_203_count_stat); break;
+    case 204: HTTP_INCREMENT_TRANS_STAT(http_response_status_204_count_stat); break;
+    case 205: HTTP_INCREMENT_TRANS_STAT(http_response_status_205_count_stat); break;
+    case 206: HTTP_INCREMENT_TRANS_STAT(http_response_status_206_count_stat); break;
+    case 300: HTTP_INCREMENT_TRANS_STAT(http_response_status_300_count_stat); break;
+    case 301: HTTP_INCREMENT_TRANS_STAT(http_response_status_301_count_stat); break;
+    case 302: HTTP_INCREMENT_TRANS_STAT(http_response_status_302_count_stat); break;
+    case 303: HTTP_INCREMENT_TRANS_STAT(http_response_status_303_count_stat); break;
+    case 304: HTTP_INCREMENT_TRANS_STAT(http_response_status_304_count_stat); break;
+    case 305: HTTP_INCREMENT_TRANS_STAT(http_response_status_305_count_stat); break;
+    case 307: HTTP_INCREMENT_TRANS_STAT(http_response_status_307_count_stat); break;
+    case 400: HTTP_INCREMENT_TRANS_STAT(http_response_status_400_count_stat); break;
+    case 401: HTTP_INCREMENT_TRANS_STAT(http_response_status_401_count_stat); break;
+    case 402: HTTP_INCREMENT_TRANS_STAT(http_response_status_402_count_stat); break;
+    case 403: HTTP_INCREMENT_TRANS_STAT(http_response_status_403_count_stat); break;
+    case 404: HTTP_INCREMENT_TRANS_STAT(http_response_status_404_count_stat); break;
+    case 405: HTTP_INCREMENT_TRANS_STAT(http_response_status_405_count_stat); break;
+    case 406: HTTP_INCREMENT_TRANS_STAT(http_response_status_406_count_stat); break;
+    case 407: HTTP_INCREMENT_TRANS_STAT(http_response_status_407_count_stat); break;
+    case 408: HTTP_INCREMENT_TRANS_STAT(http_response_status_408_count_stat); break;
+    case 409: HTTP_INCREMENT_TRANS_STAT(http_response_status_409_count_stat); break;
+    case 410: HTTP_INCREMENT_TRANS_STAT(http_response_status_410_count_stat); break;
+    case 411: HTTP_INCREMENT_TRANS_STAT(http_response_status_411_count_stat); break;
+    case 412: HTTP_INCREMENT_TRANS_STAT(http_response_status_412_count_stat); break;
+    case 413: HTTP_INCREMENT_TRANS_STAT(http_response_status_413_count_stat); break;
+    case 414: HTTP_INCREMENT_TRANS_STAT(http_response_status_414_count_stat); break;
+    case 415: HTTP_INCREMENT_TRANS_STAT(http_response_status_415_count_stat); break;
+    case 416: HTTP_INCREMENT_TRANS_STAT(http_response_status_416_count_stat); break;
+    case 500: HTTP_INCREMENT_TRANS_STAT(http_response_status_500_count_stat); break;
+    case 501: HTTP_INCREMENT_TRANS_STAT(http_response_status_501_count_stat); break;
+    case 502: HTTP_INCREMENT_TRANS_STAT(http_response_status_502_count_stat); break;
+    case 503: HTTP_INCREMENT_TRANS_STAT(http_response_status_503_count_stat); break;
+    case 504: HTTP_INCREMENT_TRANS_STAT(http_response_status_504_count_stat); break;
+    case 505: HTTP_INCREMENT_TRANS_STAT(http_response_status_505_count_stat); break;
+    default: break;
+    }
+    switch(status_code / 100) {
+    case 1: HTTP_INCREMENT_TRANS_STAT(http_response_status_1xx_count_stat); break;
+    case 2: HTTP_INCREMENT_TRANS_STAT(http_response_status_2xx_count_stat); break;
+    case 3: HTTP_INCREMENT_TRANS_STAT(http_response_status_3xx_count_stat); break;
+    case 4: HTTP_INCREMENT_TRANS_STAT(http_response_status_4xx_count_stat); break;
+    case 5: HTTP_INCREMENT_TRANS_STAT(http_response_status_5xx_count_stat); break;
+    default: break;
+    }
+  }
+  
+  // Increment the completed connection count
+  HTTP_INCREMENT_TRANS_STAT(http_completed_requests_stat);
+
+  // Set the stat now that we know what happend
+  ink_hrtime total_msec = ink_hrtime_to_msec(total_time);
+  ink_hrtime process_msec = ink_hrtime_to_msec(request_process_time);
+  switch (client_transaction_result) {
+  case CLIENT_TRANSACTION_RESULT_HIT_FRESH:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_hit_fresh_stat, total_msec);
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_hit_fresh_process_stat, process_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_HIT_REVALIDATED:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_hit_reval_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_MISS_COLD:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_miss_cold_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_MISS_CHANGED:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_miss_changed_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_MISS_CLIENT_NO_CACHE:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_miss_client_no_cache_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_MISS_UNCACHABLE:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_miss_uncacheable_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_ERROR_ABORT:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_errors_aborts_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_ERROR_POSSIBLE_ABORT:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_errors_possible_aborts_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_ERROR_CONNECT_FAIL:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_errors_connect_failed_stat, total_msec);
+    break;
+  case CLIENT_TRANSACTION_RESULT_ERROR_OTHER:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_errors_other_stat, total_msec);
+    break;
+  default:
+    HTTP_SUM_TRANS_STAT(http_ua_msecs_counts_other_unclassified_stat, total_msec);
+    // This can happen if a plugin manually sets the status code after an error.
+    DebugTxn("http", "Unclassified statistic");
+    break;
+  }
+}
+
+void
+HttpTransact::origin_server_connection_speed(State* s, ink_hrtime transfer_time, int64_t nbytes)
+{
+  float bytes_per_hrtime = (transfer_time == 0) ? (nbytes) : ((float) nbytes / (float) (int64_t) transfer_time);
+  int bytes_per_sec = (int) (bytes_per_hrtime * HRTIME_SECOND);
+
+  if (bytes_per_sec <= 100) {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_100_stat);
+  } else if (bytes_per_sec <= 1024) {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_1K_stat);
+  } else if (bytes_per_sec <= 10240) {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_10K_stat);
+  } else if (bytes_per_sec <= 102400) {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_100K_stat);
+  } else if (bytes_per_sec <= 1048576) {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_1M_stat);
+  } else if (bytes_per_sec <= 10485760) {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_10M_stat);
+  } else {
+    HTTP_INCREMENT_TRANS_STAT(http_origin_server_speed_bytes_per_sec_100M_stat);
+  }
+
+  return;
+}
+
+void
+HttpTransact::update_size_and_time_stats(State* s, ink_hrtime total_time, ink_hrtime user_agent_write_time,
+                                         ink_hrtime origin_server_read_time, int user_agent_request_header_size,
+                                         int64_t user_agent_request_body_size, int user_agent_response_header_size,
+                                         int64_t user_agent_response_body_size, int origin_server_request_header_size,
+                                         int64_t origin_server_request_body_size, int origin_server_response_header_size,
+                                         int64_t origin_server_response_body_size, int pushed_response_header_size,
+                                         int64_t pushed_response_body_size)
+{
+  int64_t user_agent_request_size = user_agent_request_header_size + user_agent_request_body_size;
+  int64_t user_agent_response_size = user_agent_response_header_size + user_agent_response_body_size;
+  int64_t user_agent_bytes = user_agent_request_size + user_agent_response_size;
+
+  int64_t origin_server_request_size = origin_server_request_header_size + origin_server_request_body_size;
+  int64_t origin_server_response_size = origin_server_response_header_size + origin_server_response_body_size;
+  int64_t origin_server_bytes = origin_server_request_size + origin_server_response_size;
+
+  // Background fill stats
+  switch (s->state_machine->background_fill) {
+  case BACKGROUND_FILL_COMPLETED:
+    {
+      int64_t bg_size = origin_server_response_body_size - user_agent_response_body_size;
+      bg_size = max((int64_t)0, bg_size);
+      HTTP_SUM_TRANS_STAT(http_background_fill_bytes_completed_stat, bg_size);
+      break;
+    }
+  case BACKGROUND_FILL_ABORTED:
+    {
+      int64_t bg_size = origin_server_response_body_size - user_agent_response_body_size;
+
+      if (bg_size < 0)
+        bg_size = 0;
+      HTTP_SUM_TRANS_STAT(http_background_fill_bytes_aborted_stat, bg_size);
+      break;
+    }
+  case BACKGROUND_FILL_NONE:
+    break;
+  case BACKGROUND_FILL_STARTED:
+  default:
+    ink_assert(0);
+  }
+
+  // Bandwidth Savings
+  switch (s->squid_codes.log_code) {
+  case SQUID_LOG_TCP_HIT:
+  case SQUID_LOG_TCP_MEM_HIT:
+    // It's possible to have two stat's instead of one, if needed.
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_hit_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_hit_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_hit_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_MISS:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_miss_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_miss_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_miss_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_EXPIRED_MISS:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_expired_miss_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_expired_miss_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_expired_miss_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_REFRESH_HIT:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_refresh_hit_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_refresh_hit_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_refresh_hit_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_REFRESH_MISS:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_refresh_miss_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_refresh_miss_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_refresh_miss_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_CLIENT_REFRESH:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_client_refresh_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_client_refresh_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_client_refresh_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_IMS_HIT:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_ims_hit_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_ims_hit_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_ims_hit_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_TCP_IMS_MISS:
+    HTTP_INCREMENT_TRANS_STAT(http_tcp_ims_miss_count_stat);
+    HTTP_SUM_TRANS_STAT(http_tcp_ims_miss_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_tcp_ims_miss_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_ERR_CLIENT_ABORT:
+    HTTP_INCREMENT_TRANS_STAT(http_err_client_abort_count_stat);
+    HTTP_SUM_TRANS_STAT(http_err_client_abort_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_err_client_abort_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  case SQUID_LOG_ERR_CONNECT_FAIL:
+    HTTP_INCREMENT_TRANS_STAT(http_err_connect_fail_count_stat);
+    HTTP_SUM_TRANS_STAT(http_err_connect_fail_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_err_connect_fail_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  default:
+    HTTP_INCREMENT_TRANS_STAT(http_misc_count_stat);
+    HTTP_SUM_TRANS_STAT(http_misc_user_agent_bytes_stat, user_agent_bytes);
+    HTTP_SUM_TRANS_STAT(http_misc_origin_server_bytes_stat, origin_server_bytes);
+    break;
+  }
+
+  // times
+  HTTP_SUM_TRANS_STAT(http_total_transactions_time_stat, total_time);
+
+  // sizes
+  HTTP_SUM_TRANS_STAT(http_user_agent_request_header_total_size_stat, user_agent_request_header_size);
+  HTTP_SUM_TRANS_STAT(http_user_agent_response_header_total_size_stat, user_agent_response_header_size);
+  HTTP_SUM_TRANS_STAT(http_user_agent_request_document_total_size_stat, user_agent_request_body_size);
+  HTTP_SUM_TRANS_STAT(http_user_agent_response_document_total_size_stat, user_agent_response_body_size);
+
+  // proxy stats
+  if (s->current.request_to == HttpTransact::PARENT_PROXY) {
+    HTTP_SUM_TRANS_STAT(http_parent_proxy_request_total_bytes_stat,
+                        origin_server_request_header_size + origin_server_request_body_size);
+    HTTP_SUM_TRANS_STAT(http_parent_proxy_response_total_bytes_stat,
+                        origin_server_response_header_size + origin_server_response_body_size);
+    HTTP_SUM_TRANS_STAT(http_parent_proxy_transaction_time_stat, total_time);
+  }
+  // request header zero means the document was cached.
+  // do not add to stats.
+  if (origin_server_request_header_size > 0) {
+    HTTP_SUM_TRANS_STAT(http_origin_server_request_header_total_size_stat, origin_server_request_header_size);
+    HTTP_SUM_TRANS_STAT(http_origin_server_response_header_total_size_stat, origin_server_response_header_size);
+    HTTP_SUM_TRANS_STAT(http_origin_server_request_document_total_size_stat, origin_server_request_body_size);
+    HTTP_SUM_TRANS_STAT(http_origin_server_response_document_total_size_stat, origin_server_response_body_size);
+  }
+
+  if (s->method == HTTP_WKSIDX_PUSH) {
+    HTTP_SUM_TRANS_STAT(http_pushed_response_header_total_size_stat, pushed_response_header_size);
+    HTTP_SUM_TRANS_STAT(http_pushed_document_total_size_stat, pushed_response_body_size);
+  }
+
+  histogram_request_document_size(s, user_agent_request_body_size);
+  histogram_response_document_size(s, user_agent_response_body_size);
+
+  if (user_agent_write_time >= 0) {
+    user_agent_connection_speed(s, user_agent_write_time, user_agent_response_size);
+  }
+
+  if (origin_server_request_header_size > 0 && origin_server_read_time > 0) {
+    origin_server_connection_speed(s, origin_server_read_time, origin_server_response_size);
+  }
+
+  return;
+}
+
+
+// void HttpTransact::add_new_stat_block(State* s)
+//
+//   Adds a new stat block
+//
+void
+HttpTransact::add_new_stat_block(State* s)
+{
+  // We keep the block around till the end of transaction
+  //    We don't need explicitly deallocate it later since
+  //    when the transaction is over, the arena will be destroyed
+  ink_assert(s->current_stats->next_insert == StatBlockEntries);
+  StatBlock *new_block = (StatBlock *) s->arena.alloc(sizeof(StatBlock));
+  new_block->init();
+  s->current_stats->next = new_block;
+  s->current_stats = new_block;
+  DebugTxn("http_trans", "Adding new large stat block");
+}
+
+
+void
+HttpTransact::delete_warning_value(HTTPHdr* to_warn, HTTPWarningCode warning_code)
+{
+  int w_code = (int) warning_code;
+  MIMEField *field = to_warn->field_find(MIME_FIELD_WARNING, MIME_LEN_WARNING);;
+
+  // Loop over the values to see if we need to do anything
+  if (field) {
+    HdrCsvIter iter;
+
+    int valid;
+    int val_code;
+
+    const char *value_str;
+    int value_len;
+
+    MIMEField *new_field = NULL;
+    val_code = iter.get_first_int(field, &valid);
+
+    while (valid) {
+      if (val_code == w_code) {
+        // Ok, found the value we're look to delete
+        //  Look over and create a new field
+        //  appending all elements that are not this
+        //  value
+        val_code = iter.get_first_int(field, &valid);
+
+        while (valid) {
+          if (val_code != warning_code) {
+            value_str = iter.get_current(&value_len);
+            if (new_field) {
+              new_field->value_append(to_warn->m_heap, to_warn->m_mime, value_str, value_len, true);
+            } else {
+              new_field = to_warn->field_create();
+              to_warn->field_value_set(new_field, value_str, value_len);
+            }
+
+          }
+          val_code = iter.get_next_int(&valid);
+        }
+
+        to_warn->field_delete(MIME_FIELD_WARNING, MIME_LEN_WARNING);
+        if (new_field) {
+          new_field->name_set(to_warn->m_heap, to_warn->m_mime, MIME_FIELD_WARNING, MIME_LEN_WARNING);
+          to_warn->field_attach(new_field);
+        }
+
+        return;
+      }
+
+      val_code = iter.get_next_int(&valid);
+    }
+  }
+}
+
+void
+HttpTransact::change_response_header_because_of_range_request(State *s, HTTPHdr * header)
+{
+  MIMEField *field;
+  char *reason_phrase;
+
+  Debug("http_trans", "Partial content requested, re-calculating content-length");
+
+  header->status_set(HTTP_STATUS_PARTIAL_CONTENT);
+  reason_phrase = (char *) (http_hdr_reason_lookup(HTTP_STATUS_PARTIAL_CONTENT));
+  header->reason_set(reason_phrase, strlen(reason_phrase));
+
+  // set the right Content-Type for multiple entry Range
+  if (s->num_range_fields > 1) {
+    field = header->field_find(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+
+    if (field != NULL)
+      header->field_delete(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+
+    field = header->field_create(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+    field->value_append(header->m_heap, header->m_mime, range_type, sizeof(range_type) - 1);
+
+    header->field_attach(field);
+    // TODO: There's a known bug here where the Content-Length is not correct for multi-part
+    // Range: requests.
+    header->set_content_length(s->range_output_cl);
+  } else {
+    if (s->cache_info.object_read && s->cache_info.object_read->valid()) {
+      // TODO: It's unclear under which conditions we need to update the Content-Range: header,
+      // many times it's already set correctly before calling this. For now, always try do it
+      // when we have the information for it available.
+      // TODO: Also, it's unclear as to why object_read->valid() is not always true here.
+      char numbers[RANGE_NUMBERS_LENGTH];
+      header->field_delete(MIME_FIELD_CONTENT_RANGE, MIME_LEN_CONTENT_RANGE);
+      field = header->field_create(MIME_FIELD_CONTENT_RANGE, MIME_LEN_CONTENT_RANGE);
+      snprintf(numbers, sizeof(numbers), "bytes %" PRId64"-%" PRId64"/%" PRId64, s->ranges[0]._start, s->ranges[0]._end,
+               s->cache_info.object_read->object_size_get());
+      field->value_set(header->m_heap, header->m_mime, numbers, strlen(numbers));
+      header->field_attach(field);
+    }
+    // Always update the Content-Length: header.
+    header->set_content_length(s->range_output_cl);
+  }
+}
+
+#if TS_HAS_TESTS
+void forceLinkRegressionHttpTransact();
+void forceLinkRegressionHttpTransactCaller() {
+  forceLinkRegressionHttpTransact();
+}
+#endif
diff --git a/proxy/http/HttpTransact.h b/proxy/http/HttpTransact.h
new file mode 100644
index 00000000..74754d18
--- /dev/null
+++ b/proxy/http/HttpTransact.h
@@ -0,0 +1,1425 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#if !defined (_HttpTransact_h_)
+#define _HttpTransact_h_
+
+#include "libts.h"
+#include "P_HostDB.h"
+#include "P_Net.h"
+#include "HttpConfig.h"
+#include "HTTP.h"
+#include "HttpTransactCache.h"
+#include "StatSystem.h"
+#include "ControlMatcher.h"
+#include "CacheControl.h"
+#include "ParentSelection.h"
+#include "ProxyConfig.h"
+#include "Transform.h"
+//#include "HttpAuthParams.h"
+#include "api/ts/remap.h"
+#include "RemapPluginInfo.h"
+#include "UrlMapping.h"
+#include <records/I_RecHttp.h>
+
+#include "congest/Congestion.h"
+
+#define MAX_DNS_LOOKUPS 2
+#define NUM_SECONDS_IN_ONE_YEAR (31536000)      // (365L * 24L * 3600L)
+
+#define HTTP_RELEASE_ASSERT(X) ink_release_assert(X)
+// #define ink_cluster_time(X) time(X)
+
+#define ACQUIRE_PRINT_LOCK()    //ink_mutex_acquire(&print_lock);
+#define RELEASE_PRINT_LOCK()    //ink_mutex_release(&print_lock);
+
+#define DUMP_HEADER(T,H,I,S) \
+{ \
+    if (diags->on(T)) { \
+    ACQUIRE_PRINT_LOCK() \
+    fprintf(stderr, "+++++++++ %s +++++++++\n", S); \
+    fprintf(stderr, "-- State Machine Id: %" PRId64 "\n", I); \
+        char b[4096]; \
+        int used, tmp, offset; \
+        int done; \
+        offset = 0; \
+    if ((H)->valid()) { \
+          do { \
+              used = 0; \
+              tmp = offset; \
+              done = (H)->print (b, 4095, &used, &tmp); \
+              offset += used; \
+              b[used] = '\0'; \
+              fprintf (stderr, "%s", b); \
+          } while (!done); \
+        } \
+    RELEASE_PRINT_LOCK() \
+    } \
+}
+
+
+#define TRANSACT_SETUP_RETURN(n, r) \
+s->next_action = n; \
+s->transact_return_point = r; \
+DebugSpecific((s->state_machine && s->state_machine->debug_on), "http_trans", "Next action %s; %s", #n, #r); \
+
+#define TRANSACT_RETURN(n, r)  \
+TRANSACT_SETUP_RETURN(n, r) \
+return; \
+
+#define TRANSACT_RETURN_VAL(n, r, v) \
+TRANSACT_SETUP_RETURN(n, r) \
+return v; \
+
+
+#define SET_UNPREPARE_CACHE_ACTION(C) \
+{ \
+    if (C.action == HttpTransact::CACHE_PREPARE_TO_DELETE) { \
+    C.action = HttpTransact::CACHE_DO_DELETE; \
+    } else if (C.action == HttpTransact::CACHE_PREPARE_TO_UPDATE) { \
+    C.action = HttpTransact::CACHE_DO_UPDATE; \
+    } else { \
+    C.action = HttpTransact::CACHE_DO_WRITE; \
+    } \
+}
+
+typedef time_t ink_time_t;
+
+struct HttpConfigParams;
+struct MimeTableEntry;
+class HttpSM;
+
+#include "InkErrno.h"
+#define UNKNOWN_INTERNAL_ERROR           (INK_START_ERRNO - 1)
+
+enum ViaStringIndex_t
+{
+  //
+  // General information
+  VIA_CLIENT = 0,
+  VIA_CLIENT_REQUEST,
+  VIA_CACHE,
+  VIA_CACHE_RESULT,
+  VIA_SERVER,
+  VIA_SERVER_RESULT,
+  VIA_CACHE_FILL,
+  VIA_CACHE_FILL_ACTION,
+  VIA_PROXY,
+  VIA_PROXY_RESULT,
+  VIA_ERROR,
+  VIA_ERROR_TYPE,
+  //
+  // State Machine specific details
+  VIA_DETAIL_SEPARATOR,
+  VIA_DETAIL_TUNNEL_DESCRIPTOR,
+  VIA_DETAIL_TUNNEL,
+  VIA_DETAIL_CACHE_DESCRIPTOR,
+  VIA_DETAIL_CACHE_TYPE,
+  VIA_DETAIL_CACHE_LOOKUP,
+  VIA_DETAIL_ICP_DESCRIPTOR,
+  VIA_DETAIL_ICP_CONNECT,
+  VIA_DETAIL_PP_DESCRIPTOR,
+  VIA_DETAIL_PP_CONNECT,
+  VIA_DETAIL_SERVER_DESCRIPTOR,
+  VIA_DETAIL_SERVER_CONNECT,
+  //
+  // Total
+  MAX_VIA_INDICES
+};
+
+enum ViaString_t
+{
+  // client stuff
+  VIA_CLIENT_STRING = 'u',
+  VIA_CLIENT_ERROR = 'E',
+  VIA_CLIENT_IMS = 'I',
+  VIA_CLIENT_NO_CACHE = 'N',
+  VIA_CLIENT_COOKIE = 'C',
+  VIA_CLIENT_SIMPLE = 'S',
+  // cache lookup stuff
+  VIA_CACHE_STRING = 'c',
+  VIA_CACHE_MISS = 'M',
+  VIA_IN_CACHE_NOT_ACCEPTABLE = 'A',
+  VIA_IN_CACHE_STALE = 'S',
+  VIA_IN_CACHE_FRESH = 'H',
+  VIA_IN_RAM_CACHE_FRESH = 'R',
+  // server stuff
+  VIA_SERVER_STRING = 's',
+  VIA_SERVER_ERROR = 'E',
+  VIA_SERVER_NOT_MODIFIED = 'N',
+  VIA_SERVER_SERVED = 'S',
+  // cache fill stuff
+  VIA_CACHE_FILL_STRING = 'f',
+  VIA_CACHE_DELETED = 'D',
+  VIA_CACHE_WRITTEN = 'W',
+  VIA_CACHE_UPDATED = 'U',
+  // proxy stuff
+  VIA_PROXY_STRING = 'p',
+  VIA_PROXY_NOT_MODIFIED = 'N',
+  VIA_PROXY_SERVED = 'S',
+  VIA_PROXY_SERVER_REVALIDATED = 'R',
+  // errors
+  VIA_ERROR_STRING = 'e',
+  VIA_ERROR_NO_ERROR = 'N',
+  VIA_ERROR_AUTHORIZATION = 'A',
+  VIA_ERROR_CONNECTION = 'C',
+  VIA_ERROR_DNS_FAILURE = 'D',
+  VIA_ERROR_FORBIDDEN = 'F',
+  VIA_ERROR_HEADER_SYNTAX = 'H',
+  VIA_ERROR_SERVER = 'S',
+  VIA_ERROR_TIMEOUT = 'T',
+  VIA_ERROR_CACHE_READ = 'R',
+  //
+  // Now the detailed stuff
+  //
+  VIA_DETAIL_SEPARATOR_STRING = ':',
+  // tunnelling
+  VIA_DETAIL_TUNNEL_DESCRIPTOR_STRING = 't',
+  VIA_DETAIL_TUNNEL_HEADER_FIELD = 'F',
+  VIA_DETAIL_TUNNEL_METHOD = 'M',
+  VIA_DETAIL_TUNNEL_CACHE_OFF = 'O',
+  VIA_DETAIL_TUNNEL_URL = 'U',
+  VIA_DETAIL_TUNNEL_NO_FORWARD = 'N',
+  VIA_DETAIL_TUNNEL_AUTHORIZATION = 'A',
+  // cache type
+  VIA_DETAIL_CACHE_DESCRIPTOR_STRING = 'c',
+  VIA_DETAIL_CACHE = 'C',
+  VIA_DETAIL_CLUSTER = 'L',
+  VIA_DETAIL_ICP = 'I',
+  VIA_DETAIL_PARENT = 'P',
+  VIA_DETAIL_SERVER = 'S',
+  // result of cache lookup
+  VIA_DETAIL_HIT_CONDITIONAL = 'N',
+  VIA_DETAIL_HIT_SERVED = 'H',
+  VIA_DETAIL_MISS_CONDITIONAL = 'I',
+  VIA_DETAIL_MISS_NOT_CACHED = 'M',
+  VIA_DETAIL_MISS_EXPIRED = 'S',
+  VIA_DETAIL_MISS_CONFIG = 'C',
+  VIA_DETAIL_MISS_CLIENT = 'U',
+  VIA_DETAIL_MISS_METHOD = 'D',
+  VIA_DETAIL_MISS_COOKIE = 'K',
+  // result of icp suggested host lookup
+  VIA_DETAIL_ICP_DESCRIPTOR_STRING = 'i',
+  VIA_DETAIL_ICP_SUCCESS = 'S',
+  VIA_DETAIL_ICP_FAILURE = 'F',
+  // result of pp suggested host lookup
+  VIA_DETAIL_PP_DESCRIPTOR_STRING = 'p',
+  VIA_DETAIL_PP_SUCCESS = 'S',
+  VIA_DETAIL_PP_FAILURE = 'F',
+  // result of server suggested host lookup
+  VIA_DETAIL_SERVER_DESCRIPTOR_STRING = 's',
+  VIA_DETAIL_SERVER_SUCCESS = 'S',
+  VIA_DETAIL_SERVER_FAILURE = 'F'
+};
+
+typedef struct _HttpApiInfo
+{
+  char *parent_proxy_name;
+  int parent_proxy_port;
+  bool cache_untransformed;
+  bool cache_transformed;
+  bool logging_enabled;
+  bool retry_intercept_failures;
+
+  _HttpApiInfo()
+  : parent_proxy_name(NULL),
+    parent_proxy_port(-1),
+    cache_untransformed(false), cache_transformed(true), logging_enabled(true), retry_intercept_failures(false)
+  { }
+} HttpApiInfo;
+
+enum
+{
+  HTTP_UNDEFINED_CL = -1
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//  HttpTransact
+//
+//  The HttpTransact class is purely used for scoping and should
+//  not be instantiated.
+//
+//////////////////////////////////////////////////////////////////////////////
+#define SET_VIA_STRING(I,S) s->via_string[I]=S;
+#define GET_VIA_STRING(I) (s->via_string[I])
+
+class HttpTransact
+{
+public:
+  enum UrlRemapMode_t
+  {
+    URL_REMAP_DEFAULT = 0,      // which is the same as URL_REMAP_ALL
+    URL_REMAP_ALL,
+    URL_REMAP_FOR_OS
+  };
+
+  enum AbortState_t
+  {
+    ABORT_UNDEFINED = 0,
+    DIDNOT_ABORT,
+    MAYBE_ABORTED,
+    ABORTED
+  };
+
+  enum Authentication_t
+  {
+    AUTHENTICATION_SUCCESS = 0,
+    AUTHENTICATION_MUST_REVALIDATE,
+    AUTHENTICATION_MUST_PROXY,
+    AUTHENTICATION_CACHE_AUTH
+  };
+
+  enum CacheAction_t
+  {
+    CACHE_DO_UNDEFINED = 0,
+    CACHE_DO_NO_ACTION,
+    CACHE_DO_DELETE,
+    CACHE_DO_LOOKUP,
+    CACHE_DO_REPLACE,
+    CACHE_DO_SERVE,
+    CACHE_DO_SERVE_AND_DELETE,
+    CACHE_DO_SERVE_AND_UPDATE,
+    CACHE_DO_UPDATE,
+    CACHE_DO_WRITE,
+    CACHE_PREPARE_TO_DELETE,
+    CACHE_PREPARE_TO_UPDATE,
+    CACHE_PREPARE_TO_WRITE,
+    TOTAL_CACHE_ACTION_TYPES
+  };
+
+  enum CacheWriteLock_t
+  {
+    CACHE_WL_INIT,
+    CACHE_WL_SUCCESS,
+    CACHE_WL_FAIL,
+    CACHE_WL_READ_RETRY
+  };
+
+  enum ClientTransactionResult_t
+  {
+    CLIENT_TRANSACTION_RESULT_UNDEFINED,
+    CLIENT_TRANSACTION_RESULT_HIT_FRESH,
+    CLIENT_TRANSACTION_RESULT_HIT_REVALIDATED,
+    CLIENT_TRANSACTION_RESULT_MISS_COLD,
+    CLIENT_TRANSACTION_RESULT_MISS_CHANGED,
+    CLIENT_TRANSACTION_RESULT_MISS_CLIENT_NO_CACHE,
+    CLIENT_TRANSACTION_RESULT_MISS_UNCACHABLE,
+    CLIENT_TRANSACTION_RESULT_ERROR_ABORT,
+    CLIENT_TRANSACTION_RESULT_ERROR_POSSIBLE_ABORT,
+    CLIENT_TRANSACTION_RESULT_ERROR_CONNECT_FAIL,
+    CLIENT_TRANSACTION_RESULT_ERROR_OTHER
+  };
+
+  enum Freshness_t
+  {
+    FRESHNESS_FRESH = 0,        // Fresh enough, serve it
+    FRESHNESS_WARNING,          // Stale, but client says OK
+    FRESHNESS_STALE             // Stale, don't use
+  };
+
+  enum HostNameExpansionError_t
+  {
+    RETRY_EXPANDED_NAME,
+    EXPANSION_FAILED,
+    EXPANSION_NOT_ALLOWED,
+    DNS_ATTEMPTS_EXHAUSTED,
+    NO_PARENT_PROXY_EXPANSION,
+    TOTAL_HOST_NAME_EXPANSION_TYPES
+  };
+
+  enum HttpTransactMagic_t
+  {
+    HTTP_TRANSACT_MAGIC_ALIVE = 0x00001234,
+    HTTP_TRANSACT_MAGIC_DEAD = 0xDEAD1234,
+    HTTP_TRANSACT_MAGIC_SEPARATOR = 0x12345678
+  };
+
+  enum LookingUp_t
+  {
+    ORIGIN_SERVER,
+    UNDEFINED_LOOKUP,
+    ICP_SUGGESTED_HOST,
+    PARENT_PROXY,
+    INCOMING_ROUTER,
+    HOST_NONE
+  };
+
+  enum ProxyMode_t
+  {
+    UNDEFINED_MODE,
+    GENERIC_PROXY,
+    TUNNELLING_PROXY
+  };
+
+  enum RequestError_t
+  {
+    NO_REQUEST_HEADER_ERROR,
+    BAD_HTTP_HEADER_SYNTAX,
+    BAD_CONNECT_PORT,
+    FAILED_PROXY_AUTHORIZATION,
+    METHOD_NOT_SUPPORTED,
+    MISSING_HOST_FIELD,
+    NO_POST_CONTENT_LENGTH,
+    NO_REQUEST_SCHEME,
+    NON_EXISTANT_REQUEST_HEADER,
+    SCHEME_NOT_SUPPORTED,
+    UNACCEPTABLE_TE_REQUIRED,
+    INVALID_POST_CONTENT_LENGTH,
+    TOTAL_REQUEST_ERROR_TYPES
+  };
+
+  enum ResponseError_t
+  {
+    NO_RESPONSE_HEADER_ERROR,
+    BOGUS_OR_NO_DATE_IN_RESPONSE,
+    CONNECTION_OPEN_FAILED,
+    MISSING_REASON_PHRASE,
+    MISSING_STATUS_CODE,
+    NON_EXISTANT_RESPONSE_HEADER,
+    NOT_A_RESPONSE_HEADER,
+    STATUS_CODE_SERVER_ERROR,
+    TOTAL_RESPONSE_ERROR_TYPES
+  };
+
+  // Please do not forget to fix TSServerState (ts/ts.h)
+  // in case of any modifications in ServerState_t
+  enum ServerState_t
+  {
+    STATE_UNDEFINED = 0,
+    ACTIVE_TIMEOUT,
+    BAD_INCOMING_RESPONSE,
+    CONNECTION_ALIVE,
+    CONNECTION_CLOSED,
+    CONNECTION_ERROR,
+    INACTIVE_TIMEOUT,
+    OPEN_RAW_ERROR,
+    PARSE_ERROR,
+    TRANSACTION_COMPLETE,
+    CONGEST_CONTROL_CONGESTED_ON_F,
+    CONGEST_CONTROL_CONGESTED_ON_M
+  };
+
+  enum CacheWriteStatus_t
+  {
+    NO_CACHE_WRITE = 0,
+    CACHE_WRITE_LOCK_MISS,
+    CACHE_WRITE_IN_PROGRESS,
+    CACHE_WRITE_ERROR,
+    CACHE_WRITE_COMPLETE
+  };
+
+  enum HttpRequestFlavor_t
+  {
+    REQ_FLAVOR_INTERCEPTED = 0,
+    REQ_FLAVOR_REVPROXY = 1,
+    REQ_FLAVOR_FWDPROXY = 2,
+    REQ_FLAVOR_SCHEDULED_UPDATE = 3
+  };
+
+  ////////////
+  // source //
+  ////////////
+  enum Source_t
+  {
+    SOURCE_NONE = 0,
+    SOURCE_HTTP_ORIGIN_SERVER,
+    SOURCE_RAW_ORIGIN_SERVER,
+    SOURCE_CACHE,
+    SOURCE_TRANSFORM,
+    SOURCE_INTERNAL             // generated from text buffer
+  };
+
+  ////////////////////////////////////////////////
+  // HttpTransact fills a StateMachineAction_t  //
+  // to tell the state machine what to do next. //
+  ////////////////////////////////////////////////
+  enum StateMachineAction_t
+  {
+    SM_ACTION_UNDEFINED = 0,
+
+    // SM_ACTION_AUTH_LOOKUP,
+    SM_ACTION_DNS_LOOKUP,
+    SM_ACTION_DNS_REVERSE_LOOKUP,
+
+    SM_ACTION_CACHE_LOOKUP,
+    SM_ACTION_CACHE_ISSUE_WRITE,
+    SM_ACTION_CACHE_ISSUE_WRITE_TRANSFORM,
+    SM_ACTION_CACHE_PREPARE_UPDATE,
+    SM_ACTION_CACHE_ISSUE_UPDATE,
+
+    SM_ACTION_ICP_QUERY,
+
+    SM_ACTION_ORIGIN_SERVER_OPEN,
+    SM_ACTION_ORIGIN_SERVER_RAW_OPEN,
+    SM_ACTION_ORIGIN_SERVER_RR_MARK_DOWN,
+
+    SM_ACTION_READ_PUSH_HDR,
+    SM_ACTION_STORE_PUSH_BODY,
+
+    SM_ACTION_INTERNAL_CACHE_DELETE,
+    SM_ACTION_INTERNAL_CACHE_NOOP,
+    SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS,
+    SM_ACTION_INTERNAL_CACHE_WRITE,
+    SM_ACTION_INTERNAL_100_RESPONSE,
+    SM_ACTION_INTERNAL_REQUEST,
+    SM_ACTION_SEND_ERROR_CACHE_NOOP,
+
+#ifdef PROXY_DRAIN
+    SM_ACTION_DRAIN_REQUEST_BODY,
+#endif /* PROXY_DRAIN */
+
+    SM_ACTION_SERVE_FROM_CACHE,
+    SM_ACTION_SERVER_READ,
+    SM_ACTION_SERVER_PARSE_NEXT_HDR,
+    SM_ACTION_TRANSFORM_READ,
+    SM_ACTION_SSL_TUNNEL,
+    SM_ACTION_CONTINUE,
+
+    SM_ACTION_API_SM_START,
+    SM_ACTION_API_READ_REQUEST_HDR,
+    SM_ACTION_API_PRE_REMAP,
+    SM_ACTION_API_POST_REMAP,
+    SM_ACTION_API_OS_DNS,
+    SM_ACTION_API_SEND_REQUEST_HDR,
+    SM_ACTION_API_READ_CACHE_HDR,
+    SM_ACTION_API_CACHE_LOOKUP_COMPLETE,
+    SM_ACTION_API_READ_RESPONSE_HDR,
+    SM_ACTION_API_SEND_RESPONSE_HDR,
+    SM_ACTION_API_SM_SHUTDOWN,
+
+    SM_ACTION_REMAP_REQUEST,
+    SM_ACTION_POST_REMAP_SKIP,
+    SM_ACTION_REDIRECT_READ
+  };
+
+  enum TransferEncoding_t
+  {
+    NO_TRANSFER_ENCODING = 0,
+    CHUNKED_ENCODING,
+    DEFLATE_ENCODING
+  };
+
+  enum Variability_t
+  {
+    VARIABILITY_NONE = 0,
+    VARIABILITY_SOME,
+    VARIABILITY_ALL
+  };
+
+  struct StatRecord_t
+  {
+    uint16_t index;
+    int64_t increment;
+  };
+
+  enum CacheLookupResult_t
+  {
+    CACHE_LOOKUP_NONE,
+    CACHE_LOOKUP_MISS,
+    CACHE_LOOKUP_DOC_BUSY,
+    CACHE_LOOKUP_HIT_STALE,
+    CACHE_LOOKUP_HIT_WARNING,
+    CACHE_LOOKUP_HIT_FRESH,
+    CACHE_LOOKUP_SKIPPED
+  };
+
+  enum UpdateCachedObject_t
+  {
+    UPDATE_CACHED_OBJECT_NONE,
+    UPDATE_CACHED_OBJECT_PREPARE,
+    UPDATE_CACHED_OBJECT_CONTINUE,
+    UPDATE_CACHED_OBJECT_ERROR,
+    UPDATE_CACHED_OBJECT_SUCCEED,
+    UPDATE_CACHED_OBJECT_FAIL
+  };
+
+  enum LockUrl_t
+  {
+    LOCK_URL_FIRST = 0,
+    LOCK_URL_SECOND,
+    LOCK_URL_ORIGINAL,
+    LOCK_URL_DONE,
+    LOCK_URL_QUIT
+  };
+
+  enum RangeSetup_t
+  {
+    RANGE_NONE = 0,
+    RANGE_REQUESTED,
+    RANGE_NOT_SATISFIABLE,
+    RANGE_NOT_HANDLED,
+    RANGE_NOT_TRANSFORM_REQUESTED
+  };
+  
+  enum CacheAuth_t
+  {
+    CACHE_AUTH_NONE = 0,
+    //CACHE_AUTH_TRUE,
+    CACHE_AUTH_FRESH,
+    CACHE_AUTH_STALE,
+    CACHE_AUTH_SERVE
+  };
+
+#define StatBlockEntries 28
+
+  struct StatBlock
+  {
+    StatBlock()
+    {
+      init();
+      memset(&stats, 0, sizeof(stats));
+    };
+
+    void init()
+    {
+      next = NULL;
+      next_insert = 0;
+    };
+
+    StatRecord_t stats[StatBlockEntries];
+    StatBlock *next;
+    uint16_t next_insert;
+  };
+
+  struct State;
+  typedef void (*TransactFunc_t) (HttpTransact::State *);
+
+  typedef struct _CacheDirectives
+  {
+    bool does_client_permit_lookup;
+    bool does_client_permit_storing;
+    bool does_client_permit_dns_storing;
+    bool does_config_permit_lookup;
+    bool does_config_permit_storing;
+    bool does_server_permit_lookup;
+    bool does_server_permit_storing;
+
+    _CacheDirectives()
+      : does_client_permit_lookup(true),
+        does_client_permit_storing(true),
+        does_client_permit_dns_storing(true),
+        does_config_permit_lookup(true),
+        does_config_permit_storing(true), does_server_permit_lookup(true), does_server_permit_storing(true)
+    { }
+  } CacheDirectives;
+
+  typedef struct _CacheLookupInfo
+  {
+    HttpTransact::CacheAction_t action;
+    HttpTransact::CacheAction_t transform_action;
+
+    HttpTransact::CacheWriteStatus_t write_status;
+    HttpTransact::CacheWriteStatus_t transform_write_status;
+
+    URL *lookup_url;
+    URL lookup_url_storage;
+    URL original_url;
+    HTTPInfo *object_read;
+    HTTPInfo *second_object_read;
+    HTTPInfo object_store;
+    HTTPInfo transform_store;
+    CacheLookupHttpConfig config;
+    CacheDirectives directives;
+    int open_read_retries;
+    int open_write_retries;
+    CacheWriteLock_t write_lock_state;
+    int lookup_count;
+    bool is_ram_cache_hit;
+
+    _CacheLookupInfo()
+      : action(CACHE_DO_UNDEFINED),
+        transform_action(CACHE_DO_UNDEFINED),
+        write_status(NO_CACHE_WRITE),
+        transform_write_status(NO_CACHE_WRITE),
+        lookup_url(NULL),
+        lookup_url_storage(),
+        original_url(),
+        object_read(NULL),
+        second_object_read(NULL),
+        object_store(),
+        transform_store(),
+        config(),
+        directives(),
+        open_read_retries(0),
+        open_write_retries(0),
+      write_lock_state(CACHE_WL_INIT),
+      lookup_count(0),
+      is_ram_cache_hit(false)
+    { }
+  } CacheLookupInfo;
+
+  typedef struct _RedirectInfo
+  {
+    bool redirect_in_process;
+    URL original_url;
+    URL redirect_url;
+
+    _RedirectInfo()
+      : redirect_in_process(false), original_url(), redirect_url()
+    { }
+  } RedirectInfo;
+
+  struct ConnectionAttributes
+  {
+    HTTPVersion http_version;
+    HTTPKeepAlive keep_alive;
+
+    // The following variable is true if the client expects to
+    // received a chunked response.
+    bool receive_chunked_response;
+    bool pipeline_possible;
+    bool proxy_connect_hdr;
+    /// @c errno from the most recent attempt to connect.
+    /// zero means no failure (not attempted, succeeded).
+    int connect_result;
+    char *name;
+    bool dns_round_robin;
+    TransferEncoding_t transfer_encoding;
+
+    IpEndpoint addr;    // replaces 'ip' field
+    
+    // port to connect to, except for client
+    // connection where it is port on proxy
+    // that client connected to.
+    // This field is managed separately from the port
+    // part of 'addr' above as in various cases the two
+    // are set/manipulated independently and things are
+    // clearer this way.
+    uint16_t port; // host order.
+    ServerState_t state;
+    AbortState_t abort;
+    HttpProxyPort::TransportType port_attribute;
+
+    /// @c true if the connection is transparent.
+    bool is_transparent;
+
+    bool had_connect_fail() const { return 0 != connect_result; }
+    void clear_connect_fail() { connect_result = 0; }
+    void set_connect_fail(int e) { connect_result = e; }
+
+    ConnectionAttributes()
+      : http_version(),
+        keep_alive(HTTP_KEEPALIVE_UNDEFINED),
+        receive_chunked_response(false),
+        pipeline_possible(false),
+        proxy_connect_hdr(false),
+        connect_result(0),
+        name(NULL),
+        dns_round_robin(false),
+        transfer_encoding(NO_TRANSFER_ENCODING),
+        port(0),
+        state(STATE_UNDEFINED),
+        abort(ABORT_UNDEFINED),
+        port_attribute(HttpProxyPort::TRANSPORT_DEFAULT),
+        is_transparent(false)
+    {
+      memset(&addr, 0, sizeof(addr));
+    }
+
+  };
+
+  typedef struct _CurrentInfo
+  {
+    ProxyMode_t mode;
+    LookingUp_t request_to;
+    ConnectionAttributes *server;
+    ink_time_t now;
+    ServerState_t state;
+    int attempts;
+
+    _CurrentInfo()
+      : mode(UNDEFINED_MODE),
+        request_to(UNDEFINED_LOOKUP), server(NULL), now(0), state(STATE_UNDEFINED), attempts(1)
+    { };
+  } CurrentInfo;
+
+  typedef struct _DNSLookupInfo
+  {
+    int attempts;
+    /** Origin server address source selection.
+
+	If config says to use CTA (client target addr) state is
+	OS_ADDR_TRY_CLIENT, otherwise it remains the default. If the
+	connect fails then we switch to a USE. We go to USE_HOSTDB if
+	(1) the HostDB lookup is successful and (2) some address other
+	than the CTA is available to try. Otherwise we keep retrying
+	on the CTA (USE_CLIENT) up to the max retry value.  In essence
+	we try to treat the CTA as if it were another RR value in the
+	HostDB record.
+     */ 
+    enum {
+      OS_ADDR_TRY_DEFAULT, ///< Initial state, use what config says.
+      OS_ADDR_TRY_HOSTDB, ///< Try HostDB data.
+      OS_ADDR_TRY_CLIENT, ///< Try client target addr.
+      OS_ADDR_USE_HOSTDB, ///< Force use of HostDB target address.
+      OS_ADDR_USE_CLIENT ///< Use client target addr, no fallback.
+    } os_addr_style;
+
+    bool lookup_success;
+    char *lookup_name;
+    char srv_hostname[MAXDNAME];
+    LookingUp_t looking_up;
+    bool srv_lookup_success;
+    short srv_port;
+    HostDBApplicationInfo srv_app;
+
+    _DNSLookupInfo()
+    : attempts(0), os_addr_style(OS_ADDR_TRY_DEFAULT),
+        lookup_success(false), lookup_name(NULL), looking_up(UNDEFINED_LOOKUP),
+        srv_lookup_success(false), srv_port(0)
+    {
+      srv_hostname[0] = '\0';
+      srv_app.allotment.application1 = 0;
+      srv_app.allotment.application2 = 0;
+    }
+  } DNSLookupInfo;
+
+  typedef struct _HeaderInfo
+  {
+    HTTPHdr client_request;
+    HTTPHdr client_response;
+    HTTPHdr server_request;
+    HTTPHdr server_response;
+    HTTPHdr transform_response;
+    HTTPHdr cache_response;
+   int64_t request_content_length;
+    int64_t response_content_length;
+    int64_t transform_request_cl;
+    int64_t transform_response_cl;
+    bool client_req_is_server_style;
+    bool trust_response_cl;
+    ResponseError_t response_error;
+    bool extension_method;
+    bool request_body_start;
+
+    _HeaderInfo()
+      : client_request(),
+        client_response(),
+        server_request(),
+        server_response(),
+        transform_response(),
+        cache_response(),
+        request_content_length(HTTP_UNDEFINED_CL),
+        response_content_length(HTTP_UNDEFINED_CL),
+        transform_request_cl(HTTP_UNDEFINED_CL),
+        transform_response_cl(HTTP_UNDEFINED_CL),
+        client_req_is_server_style(false),
+        trust_response_cl(false),
+        response_error(NO_RESPONSE_HEADER_ERROR), extension_method(false), request_body_start(false)
+    { }
+  } HeaderInfo;
+
+  typedef struct _SquidLogInfo
+  {
+    SquidLogCode log_code;
+    SquidHierarchyCode hier_code;
+    SquidHitMissCode hit_miss_code;
+
+    _SquidLogInfo()
+      : log_code(SQUID_LOG_ERR_UNKNOWN), hier_code(SQUID_HIER_EMPTY),
+        hit_miss_code(SQUID_MISS_NONE)
+    { }
+  } SquidLogInfo;
+
+
+#define HTTP_TRANSACT_STATE_MAX_XBUF_SIZE  (1024*2)     /* max size of plugin exchange buffer */
+
+  struct State
+  {
+    HttpTransactMagic_t m_magic;
+
+    HttpSM *state_machine;
+
+    Arena arena;
+
+    HttpConfigParams *http_config_param;
+    CacheLookupInfo cache_info;
+    bool force_dns;
+    DNSLookupInfo dns_info;
+    RedirectInfo redirect_info;
+    unsigned int updated_server_version;
+    bool is_revalidation_necessary;     //Added to check if revalidation is necessary - YTS Team, yamsat
+    bool request_will_not_selfloop;     // To determine if process done - YTS Team, yamsat
+    ConnectionAttributes client_info;
+    ConnectionAttributes icp_info;
+    ConnectionAttributes parent_info;
+    ConnectionAttributes server_info;
+    // ConnectionAttributes     router_info;
+
+    Source_t source;
+    Source_t pre_transform_source;
+    HttpRequestFlavor_t req_flavor;
+
+    CurrentInfo current;
+    HeaderInfo hdr_info;
+    SquidLogInfo squid_codes;
+    HttpApiInfo api_info;
+    // To handle parent proxy case, we need to be
+    //  able to defer some work in building the request
+    TransactFunc_t pending_work;
+
+    // Sandbox of Variables
+    StateMachineAction_t cdn_saved_next_action;
+    void (*cdn_saved_transact_return_point) (State* s);
+    bool cdn_remap_complete;
+    bool first_dns_lookup;
+
+    ParentConfigParams *parent_params;
+    ParentResult parent_result;
+    HttpRequestData request_data;
+    CacheControlResult cache_control;
+    CacheLookupResult_t cache_lookup_result;
+    // FilterResult             content_control;
+    bool backdoor_request;      // internal
+    bool cop_test_page;         // internal
+
+    StateMachineAction_t next_action;   // out
+    StateMachineAction_t api_next_action;       // out
+    void (*transact_return_point) (HttpTransact::State* s);    // out
+
+    // We keep this so we can jump back to the upgrade handler after remap is complete
+    bool is_upgrade_request;
+    void (*post_remap_upgrade_return_point) (HttpTransact::State* s);    // out
+    const char *upgrade_token_wks;
+
+    // Some WebSocket state
+    bool is_websocket;
+    bool did_upgrade_succeed;
+
+    char *internal_msg_buffer;  // out
+    char *internal_msg_buffer_type;     // out
+    int64_t internal_msg_buffer_size;       // out
+    int64_t internal_msg_buffer_fast_allocator_size;
+    int64_t internal_msg_buffer_index;      // out
+
+    bool icp_lookup_success;    // in
+    struct sockaddr_in icp_ip_result;   // in
+
+    int scheme;                 // out
+    int next_hop_scheme;        // out
+    int orig_scheme;            // pre-mapped scheme
+    int method;
+    HostDBInfo host_db_info;    // in
+    int cause_of_death_errno;   // in
+
+    ink_time_t client_request_time;     // internal
+    ink_time_t request_sent_time;       // internal
+    ink_time_t response_received_time;  // internal
+    ink_time_t plugin_set_expire_time;
+
+    char via_string[MAX_VIA_INDICES + 1];
+
+    int64_t state_machine_id;
+
+    //HttpAuthParams auth_params;
+
+    StatBlock first_stats;
+    StatBlock *current_stats;
+
+    // for negative caching
+    bool negative_caching;
+    // for srv_lookup
+    bool srv_lookup;
+    // for authenticated content caching
+    CacheAuth_t www_auth_content;
+
+    // new ACL filtering result (calculated immediately after remap)
+    bool client_connection_enabled;
+    bool acl_filtering_performed;
+
+    // INK API/Remap API plugin interface
+    remap_plugin_info::_tsremap_os_response *fp_tsremap_os_response;
+    void* remap_plugin_instance;
+    HTTPStatus http_return_code;
+    void *user_args[HTTP_SSN_TXN_MAX_USER_ARG];
+
+    int api_txn_active_timeout_value;
+    int api_txn_connect_timeout_value;
+    int api_txn_dns_timeout_value;
+    int api_txn_no_activity_timeout_value;
+
+    // Used by INKHttpTxnCachedReqGet and INKHttpTxnCachedRespGet SDK functions
+    // to copy part of HdrHeap (only the writable portion) for cached response headers
+    // and request headers
+    // These ptrs are deallocate when transaction is over.
+    HdrHeapSDKHandle *cache_req_hdr_heap_handle;
+    HdrHeapSDKHandle *cache_resp_hdr_heap_handle;
+    bool api_release_server_session;
+    bool api_cleanup_cache_read;
+    bool api_server_response_no_store;
+    bool api_server_response_ignore;
+    bool api_http_sm_shutdown;
+    bool api_modifiable_cached_resp;
+    bool api_server_request_body_set;
+    bool api_req_cacheable;
+    bool api_resp_cacheable;
+    bool api_server_addr_set;
+    UpdateCachedObject_t api_update_cached_object;
+    LockUrl_t api_lock_url;
+    StateMachineAction_t saved_update_next_action;
+    CacheAction_t saved_update_cache_action;
+    bool stale_icp_lookup;
+
+    // Remap plugin processor support
+    UrlMappingContainer url_map;
+    host_hdr_info hh_info;
+
+    // congestion control
+    CongestionEntry *pCongestionEntry;
+    StateMachineAction_t congest_saved_next_action;
+    int congestion_control_crat;        // 'client retry after'
+    int congestion_congested_or_failed;
+    int congestion_connection_opened;
+
+    bool reverse_proxy;
+    bool url_remap_success;
+    char *remap_redirect;
+    unsigned int filter_mask;
+
+    bool already_downgraded;
+    URL pristine_url;  // pristine url is the url before remap
+    
+    bool api_skip_all_remapping;
+    
+    // Http Range: related variables
+    RangeSetup_t range_setup;
+    int64_t num_range_fields;
+    int64_t range_output_cl;
+    RangeRecord *ranges;
+    
+    OverridableHttpConfigParams *txn_conf;
+    OverridableHttpConfigParams my_txn_conf; // Storage for plugins, to avoid malloc
+
+    bool transparent_passthrough;
+    
+    // Methods
+    void
+    init()
+    {
+      parent_params = ParentConfig::acquire();
+      current_stats = &first_stats;
+    }
+
+    // Constructor
+    State()
+      : m_magic(HTTP_TRANSACT_MAGIC_ALIVE), state_machine(NULL), http_config_param(NULL), force_dns(false),
+        updated_server_version(HostDBApplicationInfo::HTTP_VERSION_UNDEFINED), is_revalidation_necessary(false),
+        request_will_not_selfloop(false),       //YTS Team, yamsat
+        source(SOURCE_NONE),
+        pre_transform_source(SOURCE_NONE),
+        req_flavor(REQ_FLAVOR_FWDPROXY),
+        pending_work(NULL),
+        cdn_saved_next_action(SM_ACTION_UNDEFINED),
+        cdn_saved_transact_return_point(NULL),
+        cdn_remap_complete(false),
+        first_dns_lookup(true),
+        parent_params(NULL),
+        cache_lookup_result(CACHE_LOOKUP_NONE),
+        backdoor_request(false),
+        cop_test_page(false),
+        next_action(SM_ACTION_UNDEFINED),
+        api_next_action(SM_ACTION_UNDEFINED),
+        transact_return_point(NULL),
+        is_upgrade_request(false),
+        post_remap_upgrade_return_point(NULL),
+        upgrade_token_wks(NULL),
+        is_websocket(false),
+        did_upgrade_succeed(false),
+        internal_msg_buffer(NULL),
+        internal_msg_buffer_type(NULL),
+        internal_msg_buffer_size(0),
+        internal_msg_buffer_fast_allocator_size(-1),
+        internal_msg_buffer_index(0),
+        icp_lookup_success(false),
+        scheme(-1),
+        next_hop_scheme(scheme),
+        orig_scheme(scheme),
+        method(0),
+        cause_of_death_errno(-UNKNOWN_INTERNAL_ERROR),
+        client_request_time(UNDEFINED_TIME),
+        request_sent_time(UNDEFINED_TIME),
+        response_received_time(UNDEFINED_TIME),
+        plugin_set_expire_time(UNDEFINED_TIME),
+        state_machine_id(0),
+        first_stats(),
+        current_stats(NULL),
+        negative_caching(false),
+        srv_lookup(false),
+        www_auth_content(CACHE_AUTH_NONE),
+        client_connection_enabled(true),
+        acl_filtering_performed(false),
+        fp_tsremap_os_response(NULL),
+        remap_plugin_instance(0),
+        http_return_code(HTTP_STATUS_NONE),
+        api_txn_active_timeout_value(-1),
+        api_txn_connect_timeout_value(-1),
+        api_txn_dns_timeout_value(-1),
+        api_txn_no_activity_timeout_value(-1),
+        cache_req_hdr_heap_handle(NULL),
+        cache_resp_hdr_heap_handle(NULL),
+        api_release_server_session(false),
+        api_cleanup_cache_read(false),
+        api_server_response_no_store(false),
+        api_server_response_ignore(false),
+        api_http_sm_shutdown(false),
+        api_modifiable_cached_resp(false),
+        api_server_request_body_set(false),
+        api_req_cacheable(false),
+        api_resp_cacheable(false),
+        api_server_addr_set(false),
+        api_update_cached_object(UPDATE_CACHED_OBJECT_NONE),
+        api_lock_url(LOCK_URL_FIRST),
+        saved_update_next_action(SM_ACTION_UNDEFINED),
+        saved_update_cache_action(CACHE_DO_UNDEFINED),
+        stale_icp_lookup(false),
+        url_map(),
+        pCongestionEntry(NULL),
+        congest_saved_next_action(SM_ACTION_UNDEFINED),
+        congestion_control_crat(0),
+        congestion_congested_or_failed(0),
+        congestion_connection_opened(0),
+        reverse_proxy(false), url_remap_success(false), remap_redirect(NULL), filter_mask(0), already_downgraded(false),
+        pristine_url(),
+        api_skip_all_remapping(false),
+        range_setup(RANGE_NONE),
+        num_range_fields(0),
+        range_output_cl(0),
+        ranges(NULL),
+        txn_conf(NULL),
+        transparent_passthrough(false)
+    {
+      int i;
+      char *via_ptr = via_string;
+
+      for (i = 0; i < MAX_VIA_INDICES; i++) {
+        *via_ptr++ = ' ';
+      }
+
+      via_string[VIA_CLIENT] = VIA_CLIENT_STRING;
+      via_string[VIA_CACHE] = VIA_CACHE_STRING;
+      via_string[VIA_SERVER] = VIA_SERVER_STRING;
+      via_string[VIA_CACHE_FILL] = VIA_CACHE_FILL_STRING;
+      via_string[VIA_PROXY] = VIA_PROXY_STRING;
+      via_string[VIA_ERROR] = VIA_ERROR_STRING;
+      via_string[VIA_ERROR_TYPE] = VIA_ERROR_NO_ERROR;
+      via_string[VIA_DETAIL_SEPARATOR] = VIA_DETAIL_SEPARATOR_STRING;
+      via_string[VIA_DETAIL_TUNNEL_DESCRIPTOR] = VIA_DETAIL_TUNNEL_DESCRIPTOR_STRING;
+      via_string[VIA_DETAIL_CACHE_DESCRIPTOR] = VIA_DETAIL_CACHE_DESCRIPTOR_STRING;
+      via_string[VIA_DETAIL_ICP_DESCRIPTOR] = VIA_DETAIL_ICP_DESCRIPTOR_STRING;
+      via_string[VIA_DETAIL_PP_DESCRIPTOR] = VIA_DETAIL_PP_DESCRIPTOR_STRING;
+      via_string[VIA_DETAIL_SERVER_DESCRIPTOR] = VIA_DETAIL_SERVER_DESCRIPTOR_STRING;
+      via_string[MAX_VIA_INDICES] = '\0';
+
+      memset(user_args, 0, sizeof(user_args));
+      memset(&host_db_info, 0, sizeof(host_db_info));
+    }
+
+    void
+    record_transaction_stats()
+    {
+      if (http_config_param->enable_http_stats) {
+        // Loop over our transaction stat blocks and record the stats
+        //  in the global arrays
+        STAT_LOCK_ACQUIRE(&(global_http_trans_stat_lock));
+        StatBlock *b = &first_stats;
+
+        while (b != NULL) {
+          for (int i = 0; i < b->next_insert && i < StatBlockEntries; i++) {
+            RecIncrRawStat(http_rsb, this_ethread(), b->stats[i].index, b->stats[i].increment);
+
+          }
+          b = b->next;
+        }
+        STAT_LOCK_RELEASE(&(global_http_trans_stat_lock));
+      }
+    }
+
+    void
+    destroy()
+    {
+      record_transaction_stats();
+      m_magic = HTTP_TRANSACT_MAGIC_DEAD;
+
+      free_internal_msg_buffer();
+      ats_free(internal_msg_buffer_type);
+
+      ParentConfig::release(parent_params);
+      parent_params = NULL;
+
+      hdr_info.client_request.destroy();
+      hdr_info.client_response.destroy();
+      hdr_info.server_request.destroy();
+      hdr_info.server_response.destroy();
+      hdr_info.transform_response.destroy();
+      hdr_info.cache_response.destroy();
+      cache_info.lookup_url_storage.destroy();
+      cache_info.original_url.destroy();
+      cache_info.object_store.destroy();
+      cache_info.transform_store.destroy();
+      redirect_info.original_url.destroy();
+      redirect_info.redirect_url.destroy();
+
+      if (pCongestionEntry) {
+        if (congestion_connection_opened == 1) {
+          pCongestionEntry->connection_closed();
+          congestion_connection_opened = 0;
+        }
+        pCongestionEntry->put(), pCongestionEntry = NULL;
+      }
+
+      url_map.clear();
+      arena.reset();
+      pristine_url.clear();
+
+      delete[] ranges;
+      ranges = NULL;
+      range_setup = RANGE_NONE;
+      return;
+    }
+
+    // Little helper function to setup the per-transaction configuration copy
+    void
+    setup_per_txn_configs()
+    {
+      if (txn_conf != &my_txn_conf) {
+        // Make sure we copy it first.
+        memcpy(&my_txn_conf, &http_config_param->oride, sizeof(my_txn_conf));
+        txn_conf = &my_txn_conf;
+      }
+    }
+
+    void
+    free_internal_msg_buffer()
+    {
+      if (internal_msg_buffer) {
+        if (internal_msg_buffer_fast_allocator_size >= 0) {
+          ioBufAllocator[internal_msg_buffer_fast_allocator_size].free_void(internal_msg_buffer);
+        } else {
+          ats_free(internal_msg_buffer);
+        }
+        internal_msg_buffer = NULL;
+      }
+      internal_msg_buffer_size = 0;
+    }
+
+  }; // End of State struct.
+
+  static void HandleBlindTunnel(State* s);
+  static void StartRemapRequest(State* s);
+  static void RemapRequest(State* s);
+  static void EndRemapRequest(State* s);
+  static void PerformRemap(State* s);
+  static void ModifyRequest(State* s);
+  static void HandleRequest(State* s);
+  static bool handleIfRedirect(State* s);
+
+  static void StartAccessControl(State* s);
+  static void StartAuth(State* s);
+  static void HandleRequestAuthorized(State* s);
+  static void BadRequest(State* s);
+  static void HandleFiltering(State* s);
+  static void DecideCacheLookup(State* s);
+  static void LookupSkipOpenServer(State* s);
+
+  static void CallOSDNSLookup(State* s);
+  static void OSDNSLookup(State* s);
+  static void ReDNSRoundRobin(State* s);
+  static void PPDNSLookup(State* s);
+  static void HandleAuth(State* s);
+  static void HandleAuthFailed(State* s);
+  static void OriginServerRawOpen(State* s);
+  static void HandleCacheOpenRead(State* s);
+  static void HandleCacheOpenReadHitFreshness(State* s);
+  static void HandleCacheOpenReadHit(State* s);
+  static void HandleCacheOpenReadMiss(State* s);
+  static void build_response_from_cache(State* s, HTTPWarningCode warning_code);
+  static void handle_cache_write_lock(State* s);
+  static void HandleICPLookup(State* s);
+  static void HandleResponse(State* s);
+  static void HandleUpdateCachedObject(State* s);
+  static void HandleUpdateCachedObjectContinue(State* s);
+  static void HandleStatPage(State* s);
+  static void handle_100_continue_response(State* s);
+  static void handle_transform_ready(State* s);
+  static void handle_transform_cache_write(State* s);
+  static void handle_response_from_icp_suggested_host(State* s);
+  static void handle_response_from_parent(State* s);
+  static void handle_response_from_server(State* s);
+  static void delete_server_rr_entry(State* s, int max_retries);
+  static void retry_server_connection_not_open(State* s, ServerState_t conn_state, int max_retries);
+  static void handle_server_connection_not_open(State* s);
+  static void handle_forward_server_connection_open(State* s);
+  static void handle_cache_operation_on_forward_server_response(State* s);
+  static void handle_no_cache_operation_on_forward_server_response(State* s);
+  static void merge_and_update_headers_for_cache_update(State* s);
+  static void set_headers_for_cache_write(State* s, HTTPInfo* cache_info, HTTPHdr* request, HTTPHdr* response);
+  static void set_header_for_transform(State* s, HTTPHdr* base_header);
+  static void merge_response_header_with_cached_header(HTTPHdr* cached_header, HTTPHdr* response_header);
+  static void merge_warning_header(HTTPHdr* cached_header, HTTPHdr* response_header);
+  static void SetCacheFreshnessLimit(State* s);
+  static void HandleApiErrorJump(State *);
+  static void handle_websocket_upgrade_pre_remap(State *s);
+  static void handle_websocket_upgrade_post_remap(State *s);
+  static bool handle_upgrade_request(State *s);
+  static void handle_websocket_connection(State *s);
+
+  static void HandleCacheOpenReadPush(State* s, bool read_successful);
+  static void HandlePushResponseHdr(State* s);
+  static void HandlePushCacheWrite(State* s);
+  static void HandlePushTunnelSuccess(State* s);
+  static void HandlePushTunnelFailure(State* s);
+  static void HandlePushError(State *s, const char *reason);
+  static void HandleBadPushRespHdr(State* s);
+
+  // Utility Methods
+  static void issue_revalidate(State* s);
+  static void get_ka_info_from_host_db(State* s, ConnectionAttributes* server_info, ConnectionAttributes* client_info,
+                                       HostDBInfo* host_db_info);
+  static bool service_transaction_in_proxy_only_mode(State* s);
+  static void setup_plugin_request_intercept(State* s);
+  static void add_client_ip_to_outgoing_request(State* s, HTTPHdr* request);
+  static RequestError_t check_request_validity(State* s, HTTPHdr* incoming_hdr);
+  static ResponseError_t check_response_validity(State* s, HTTPHdr* incoming_hdr);
+  static bool delete_all_document_alternates_and_return(State* s, bool cache_hit);
+  static bool did_forward_server_send_0_9_response(State* s);
+  static bool does_client_request_permit_cached_response(const OverridableHttpConfigParams *p, CacheControlResult *c,
+                                                         HTTPHdr *h, char *via_string);
+  static bool does_client_request_permit_dns_caching(CacheControlResult* c, HTTPHdr* h);
+  static bool does_client_request_permit_storing(CacheControlResult* c, HTTPHdr* h);
+  static bool handle_internal_request(State* s, HTTPHdr* incoming_hdr);
+  static bool handle_trace_and_options_requests(State* s, HTTPHdr* incoming_hdr);
+  static void bootstrap_state_variables_from_request(State* s, HTTPHdr* incoming_request);
+  static void initialize_state_variables_for_origin_server(State* s, HTTPHdr* incoming_request, bool second_time);
+  static void initialize_state_variables_from_request(State* s, HTTPHdr* obsolete_incoming_request);
+  static void initialize_state_variables_from_response(State* s, HTTPHdr* incoming_response);
+  static bool is_server_negative_cached(State* s);
+  static bool is_cache_response_returnable(State* s);
+  static bool is_stale_cache_response_returnable(State* s);
+  static bool need_to_revalidate(State* s);
+  static bool url_looks_dynamic(URL* url);
+  static bool is_request_cache_lookupable(State* s);
+  static bool is_request_valid(State* s, HTTPHdr* incoming_request);
+  static bool is_request_retryable(State* s);
+
+  static bool is_response_cacheable(State* s, HTTPHdr* request, HTTPHdr* response);
+  static bool is_response_valid(State* s, HTTPHdr* incoming_response);
+
+  static void process_quick_http_filter(State* s, int method);
+  static bool perform_accept_encoding_filtering(State* s);
+
+  static HostNameExpansionError_t try_to_expand_host_name(State* s);
+
+  static bool setup_auth_lookup(State* s);
+  static bool will_this_request_self_loop(State* s);
+  static bool is_request_likely_cacheable(State* s, HTTPHdr* request);
+
+  static void build_request(State* s, HTTPHdr* base_request, HTTPHdr* outgoing_request, HTTPVersion outgoing_version);
+  static void build_response(State* s, HTTPHdr* base_response, HTTPHdr* outgoing_response, HTTPVersion outgoing_version,
+                             HTTPStatus status_code, const char *reason_phrase = NULL);
+  static void build_response(State* s, HTTPHdr* base_response, HTTPHdr* outgoing_response, HTTPVersion outgoing_version);
+  static void build_response(State* s, HTTPHdr* outgoing_response, HTTPVersion outgoing_version, HTTPStatus status_code,
+                             const char *reason_phrase = NULL);
+
+  static void build_response_copy(State* s, HTTPHdr* base_response, HTTPHdr* outgoing_response, HTTPVersion outgoing_version);
+  static void handle_content_length_header(State* s, HTTPHdr* header, HTTPHdr* base);
+  static void change_response_header_because_of_range_request(State* s, HTTPHdr* header);
+
+  static void handle_request_keep_alive_headers(State *s, HTTPVersion ver, HTTPHdr *heads);
+  static void handle_response_keep_alive_headers(State *s, HTTPVersion ver, HTTPHdr *heads);
+  static int calculate_document_freshness_limit(State *s, HTTPHdr *response, time_t response_date, bool *heuristic);
+  static int calculate_freshness_fuzz(State *s, int fresh_limit);
+  static Freshness_t what_is_document_freshness(State *s, HTTPHdr *client_request, HTTPHdr *cached_obj_response);
+  static Authentication_t AuthenticationNeeded(const OverridableHttpConfigParams *p, HTTPHdr *client_request, HTTPHdr *obj_response);
+  static void handle_parent_died(State* s);
+  static void handle_server_died(State* s);
+  static void build_error_response(State *s, HTTPStatus status_code, const char *reason_phrase_or_null, const char *error_body_type,
+                                   const char *format, ...);
+  static void build_redirect_response(State* s);
+  static const char *get_error_string(int erno);
+
+  // the stat functions
+  static void update_stat(State* s, int stat, ink_statval_t increment);
+  static void update_size_and_time_stats(State* s, ink_hrtime total_time, ink_hrtime user_agent_write_time,
+                                         ink_hrtime origin_server_read_time, int user_agent_request_header_size,
+                                         int64_t user_agent_request_body_size, int user_agent_response_header_size,
+                                         int64_t user_agent_response_body_size, int origin_server_request_header_size,
+                                         int64_t origin_server_request_body_size, int origin_server_response_header_size,
+                                         int64_t origin_server_response_body_size, int pushed_response_header_size,
+                                         int64_t pushed_response_body_size);
+  static void histogram_request_document_size(State* s, int64_t size);
+  static void histogram_response_document_size(State* s, int64_t size);
+  static void user_agent_connection_speed(State* s, ink_hrtime transfer_time, int64_t nbytes);
+  static void origin_server_connection_speed(State* s, ink_hrtime transfer_time, int64_t nbytes);
+  static void client_result_stat(State* s, ink_hrtime total_time, ink_hrtime request_process_time);
+  static void add_new_stat_block(State* s);
+  static void delete_warning_value(HTTPHdr* to_warn, HTTPWarningCode warning_code);
+  static bool is_connection_collapse_checks_success(State* s); //YTS Team, yamsat
+};
+
+typedef void (*TransactEntryFunc_t) (HttpTransact::State* s);
+
+inline bool
+is_response_body_precluded(HTTPStatus status_code, int method)
+{
+
+  ////////////////////////////////////////////////////////
+  // the spec says about message body the following:    //
+  // All responses to the HEAD request method MUST NOT  //
+  // include a message-body, even though the presence   //
+  // of entity-header fields might lead one to believe  //
+  // they do. All 1xx (informational), 204 (no content),//
+  // and 304 (not modified) responses MUST NOT include  //
+  // a message-body.                                    //
+  ////////////////////////////////////////////////////////
+
+  if (((status_code != HTTP_STATUS_OK) &&
+       ((status_code == HTTP_STATUS_NOT_MODIFIED) ||
+        ((status_code<HTTP_STATUS_OK) && (status_code>= HTTP_STATUS_CONTINUE)) ||
+        (status_code == 204))) || (method == HTTP_WKSIDX_HEAD)) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+inkcoreapi extern ink_time_t ink_cluster_time(void);
+
+inline void
+HttpTransact::update_stat(State* s, int stat, ink_statval_t increment)
+{
+  if (s->current_stats->next_insert >= StatBlockEntries) {
+    // This a rare operation and we want to avoid the
+    //   code bloat of inlining it everywhere so
+    //   it's a function call
+    add_new_stat_block(s);
+  }
+
+  uint16_t *next_insert = &s->current_stats->next_insert;
+  s->current_stats->stats[*next_insert].index = stat;
+  s->current_stats->stats[*next_insert].increment = increment;
+  (*next_insert)++;
+}
+
+#endif
diff --git a/proxy/http/HttpTransactCache.cc b/proxy/http/HttpTransactCache.cc
new file mode 100644
index 00000000..1b0fc046
--- /dev/null
+++ b/proxy/http/HttpTransactCache.cc
@@ -0,0 +1,1570 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+
+#include "HttpTransact.h"
+#include "HttpTransactHeaders.h"
+#include "HttpTransactCache.h"
+#include "time.h"
+#include "HTTP.h"
+#include "HttpCompat.h"
+#include "Error.h"
+#include "InkErrno.h"
+
+ClassAllocator<CacheLookupHttpConfig> CacheLookupHttpConfigAllocator("CacheLookupHttpConfigAllocator");
+
+CacheLookupHttpConfig global_cache_lookup_config;
+
+/**
+  Find the pointer and length of an etag, after stripping off any leading
+  "W/" prefix, and surrounding double quotes.
+
+*/
+inline static const char *
+find_etag(const char *raw_tag_field, int raw_tag_field_len, int *length)
+{
+  const char *quote;
+  int etag_length = 0;
+  const char *etag_start = raw_tag_field;
+  const char *etag_end = raw_tag_field + raw_tag_field_len;
+
+  if ((raw_tag_field_len >= 2) && (etag_start[0] == 'W' && etag_start[1] == '/')) {
+    etag_start += 2;
+  }
+
+  etag_length = etag_end - etag_start;
+
+  if ((etag_start < etag_end) && (*etag_start == '"')) {
+    ++etag_start;
+    --etag_length;
+    quote = (const char *) memchr(etag_start, '"', etag_length);
+    if (quote)
+      etag_length = quote - etag_start;
+  }
+  *length = etag_length;
+  return etag_start;
+}
+
+/**
+  Match an etag raw_tag_field with a list of tags in the comma-separated
+  string field_to_match, using strong rules.
+
+*/
+inline static bool
+do_strings_match_strongly(const char *raw_tag_field,
+                          int raw_tag_field_len, const char *comma_sep_tag_list, int comma_sep_tag_list_len)
+{
+  StrList tag_list;
+  const char *etag_start;
+  int n, etag_length;
+
+
+  // Can never match a weak tag with a strong compare
+  if ((raw_tag_field_len >= 2) && (raw_tag_field[0] == 'W' && raw_tag_field[1] == '/')) {
+    return false;
+  }
+  // Find the unalterated tag
+  etag_start = find_etag(raw_tag_field, raw_tag_field_len, &etag_length);
+
+  // Rip the field list into a comma-separated field list
+  HttpCompat::parse_comma_list(&tag_list, comma_sep_tag_list, comma_sep_tag_list_len);
+
+  // Loop over all the tags in the tag list
+  for (Str * tag = tag_list.head; tag; tag = tag->next) {
+    // If field is "*", then we got a match
+    if ((tag->len == 1) && (tag->str[0] == '*'))
+      return true;
+
+    n = 0;
+
+    if (((int) (tag->len - n) == etag_length) && (strncmp(etag_start, tag->str + n, etag_length) == 0)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+/**
+  Match an etag raw_tag_field with a list of tags in the comma-separated
+  string field_to_match, using weak rules.
+
+*/
+inline static bool
+do_strings_match_weakly(const char *raw_tag_field,
+                        int raw_tag_field_len, const char *comma_sep_tag_list, int comma_sep_tag_list_len)
+{
+  StrList tag_list;
+  const char *etag_start;
+  const char *cur_tag;
+  int etag_length, cur_tag_len;
+
+  // Find the unalterated tag
+  etag_start = find_etag(raw_tag_field, raw_tag_field_len, &etag_length);
+
+  // Rip the field list into a comma-separated field list
+  HttpCompat::parse_comma_list(&tag_list, comma_sep_tag_list, comma_sep_tag_list_len);
+
+  for (Str * tag = tag_list.head; tag; tag = tag->next) {
+    // If field is "*", then we got a match
+    if ((tag->len == 1) && (tag->str[0] == '*'))
+      return true;
+
+    // strip off the leading 'W/' and quotation marks from the
+    // current tag, then compare for equality with above tag.
+    cur_tag = find_etag(tag->str, tag->len, &cur_tag_len);
+    if ((cur_tag_len == etag_length) && (strncmp(cur_tag, etag_start, cur_tag_len) == 0))
+      return true;
+  }
+  return false;
+}
+
+inline static bool
+is_asterisk(char *s)
+{
+  return ((s[0] == '*') && (s[1] == NUL));
+}
+
+inline static bool
+is_empty(char *s)
+{
+  return (s[0] == NUL);
+}
+
+/**
+  Given a set of alternates, select the best match.
+
+  The current school of thought: quality 1st, freshness 2nd.  Loop through
+  alternates and find the one with the highest quality factor. Then
+  determine if it is fresh enough. If not, find the next best match. In
+  keeping with "quality is job 1", subsequent matches will only be
+  considered if their quality is equal to the quality of the first match.
+
+  @return index in cache alternates vector.
+
+*/
+int
+HttpTransactCache::SelectFromAlternates(CacheHTTPInfoVector * cache_vector,
+                                        HTTPHdr * client_request, CacheLookupHttpConfig * http_config_params)
+{
+  time_t current_age, best_age = NUM_SECONDS_IN_ONE_YEAR;
+  time_t t_now = 0;
+  int best_index = -1;
+  float best_Q = -1.0;
+  float unacceptable_Q = 0.0;
+
+  int alt_count = cache_vector->count();
+  if (alt_count == 0) {
+    return -1;
+  }
+
+
+  Debug("http_match", "[SelectFromAlternates] # alternates = %d", alt_count);
+  Debug("http_seq", "[SelectFromAlternates] %d alternates for this cached doc", alt_count);
+  if (diags->on("http_alts")) {
+    ACQUIRE_PRINT_LOCK()
+      fprintf(stderr, "[alts] There are %d alternates for this request header.\n", alt_count);
+    RELEASE_PRINT_LOCK()
+  }
+  // used by ICP to bypass this function
+  if (http_config_params == &global_cache_lookup_config)
+    return 0;
+
+  if (!client_request->valid()) {
+    return 0;
+  }
+  // so that plugins can make cache reads for http
+  // docs to check if the doc exists in the cache
+  if (!client_request->valid()) {
+    return 0;
+  }
+
+  for (int i = 0; i < alt_count; i++) {
+    float Q;
+    CacheHTTPInfo *obj = cache_vector->get(i);
+    HTTPHdr *cached_request = obj->request_get();
+    HTTPHdr *cached_response = obj->response_get();
+
+    if (!(obj->object_key_get() == zero_key)) {
+      ink_assert(cached_request->valid());
+      ink_assert(cached_response->valid());
+
+      Q = calculate_quality_of_match(http_config_params, client_request, cached_request, cached_response);
+
+      if (alt_count > 1) {
+        if (t_now == 0)
+          t_now = ink_cluster_time();
+        current_age = HttpTransactHeaders::calculate_document_age(obj->request_sent_time_get(),
+                                                                  obj->response_received_time_get(),
+                                                                  cached_response, cached_response->get_date(), t_now);
+        // Overflow?
+        if (current_age < 0)
+          current_age = NUM_SECONDS_IN_ONE_YEAR; // TODO: Should we make a different define for "max cache age" ?
+      } else {
+        current_age = (time_t) 0;
+      }
+
+      if (diags->on("http_alts")) {
+        fprintf(stderr, "[alts] ---- alternate #%d (Q = %g) has these request/response hdrs:\n", i + 1, Q);
+        char b[4096];
+        int used, tmp, offset;
+        int done;
+
+        offset = 0;
+        do {
+          used = 0;
+          tmp = offset;
+          done = cached_request->print(b, sizeof(b) - 1, &used, &tmp);
+          offset += used;
+          b[used] = '\0';
+          fprintf(stderr, "%s", b);
+        } while (!done);
+
+        offset = 0;
+        do {
+          used = 0;
+          tmp = offset;
+          done = cached_response->print(b, sizeof(b) - 1, &used, &tmp);
+          offset += used;
+          b[used] = '\0';
+          fprintf(stderr, "%s", b);
+        } while (!done);
+      }
+
+      if ((Q > best_Q) || ((Q == best_Q) && (current_age <= best_age))) {
+        best_Q = Q;
+        best_age = current_age;
+        best_index = i;
+      }
+    }
+  }
+  Debug("http_seq", "[SelectFromAlternates] Chosen alternate # %d", best_index);
+  if (diags->on("http_alts")) {
+    ACQUIRE_PRINT_LOCK()
+      fprintf(stderr, "[alts] and the winner is alternate number %d\n", best_index + 1);
+    RELEASE_PRINT_LOCK()
+  }
+
+  if ((best_index != -1) && (best_Q > unacceptable_Q)) {
+    return best_index;
+  } else {
+    return -1;
+  }
+}
+
+/**
+  For cached req/res and incoming req, return quality of match.
+
+  The current school of thought: quality 1st, freshness 2nd.  This
+  function takes a user agent request client_request and the two headers
+  for a cached object (obj_client_request and obj_origin_server_response),
+  and returns a floating point number for how well the object matches
+  the client's request.
+
+  Two factors currently affect a match: Accept headers, which filter and
+  sort the matches, and Vary headers, which constrain whether a dynamic
+  document matches a request.
+
+  Note: According to the specs, specific matching takes precedence over
+  wildcard matching. For example, listed in precedence: text/html;q=0.5,
+  text/ascii, image/'*', '*'/'*'. So, ideally, in choosing between
+  alternates, we should given preference to those which matched
+  specifically over those which matched with wildcards.
+
+  @return quality (-1: no match, 0..1: poor..good).
+
+*/
+float
+HttpTransactCache::calculate_quality_of_match(CacheLookupHttpConfig * http_config_param,
+                                              HTTPHdr * client_request,
+                                              HTTPHdr * obj_client_request,
+                                              HTTPHdr * obj_origin_server_response)
+{
+  // For PURGE requests, any alternate is good really.
+  if (client_request->method_get_wksidx() == HTTP_WKSIDX_PURGE)
+    return (float)1.0;
+
+  // Now calculate a quality based on all sorts of logic
+  float q[4], Q;
+  MIMEField *accept_field;
+  MIMEField *cached_accept_field;
+  MIMEField *content_field;
+
+  // vary_skip_mask is used as a bitmask, 0b01 or 0b11 depending on the presence of Vary.
+  // This allows us to AND each of the four configs against it; Table:
+  //
+  //   Conf   Mask          Conf   Mask         Conf   Mask
+  //   ----   ----          ----   ----         ----   ----
+  //    00  &  01 == false   01  &  01 == true   10  &  01 == false
+  //    00  &  11 == false   01  &  11 == true   10  &  11 == true
+  //
+  // A true value means the check for that config can be skipped. Note: from a users
+  // perspective, the configs are simply 0, 1 or 2.
+  unsigned int vary_skip_mask = obj_origin_server_response->presence(MIME_PRESENCE_VARY) ? 1 : 3;
+
+  // Make debug output happy
+  q[1] = (q[2] = (q[3] = -2.0));
+
+  // This content_field is used for a couple of headers, so get it first
+  content_field = obj_origin_server_response->field_find(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+
+  // Accept: header
+  if (http_config_param->ignore_accept_mismatch & vary_skip_mask) {
+    // Ignore it
+    q[0] = 1.0;
+  } else {
+    accept_field = client_request->field_find(MIME_FIELD_ACCEPT, MIME_LEN_ACCEPT);
+
+    // A NULL Accept or a NULL Content-Type field are perfect matches.
+    if (content_field == NULL || accept_field == NULL) {
+      q[0] = 1.0; // TODO: Why should this not be 1.001 ?? // leif
+    } else {
+      q[0] = calculate_quality_of_accept_match(accept_field, content_field);
+    }
+  }
+
+  if (q[0] >= 0.0) {
+    // Accept-Charset: header
+    if (http_config_param->ignore_accept_charset_mismatch & vary_skip_mask) {
+      // Ignore it
+      q[1] = 1.0;
+    } else {
+      accept_field = client_request->field_find(MIME_FIELD_ACCEPT_CHARSET, MIME_LEN_ACCEPT_CHARSET);
+      cached_accept_field = obj_client_request->field_find(MIME_FIELD_ACCEPT_CHARSET, MIME_LEN_ACCEPT_CHARSET);
+
+      // absence in both requests counts as exact match
+      if (accept_field == NULL && cached_accept_field == NULL) {
+        Debug("http_alternate", "Exact match for ACCEPT CHARSET (not in request nor cache)");
+        q[1] = 1.001; //slightly higher weight to this guy
+      } else {
+        q[1] = calculate_quality_of_accept_charset_match(accept_field, content_field, cached_accept_field);
+      }
+    }
+
+    if (q[1] >= 0.0) {
+      // Accept-Encoding: header
+      if (http_config_param->ignore_accept_encoding_mismatch & vary_skip_mask) {
+        // Ignore it
+        q[2] = 1.0;
+      } else {
+        accept_field = client_request->field_find(MIME_FIELD_ACCEPT_ENCODING, MIME_LEN_ACCEPT_ENCODING);
+        content_field = obj_origin_server_response->field_find(MIME_FIELD_CONTENT_ENCODING, MIME_LEN_CONTENT_ENCODING);
+        cached_accept_field = obj_client_request->field_find(MIME_FIELD_ACCEPT_ENCODING, MIME_LEN_ACCEPT_ENCODING);
+
+        // absence in both requests counts as exact match
+        if (accept_field == NULL && cached_accept_field == NULL) {
+          Debug("http_alternate", "Exact match for ACCEPT ENCODING (not in request nor cache)");
+          q[2] = 1.001; //slightly higher weight to this guy
+        } else {
+          q[2] = calculate_quality_of_accept_encoding_match(accept_field, content_field, cached_accept_field);
+        }
+      }
+
+      if (q[2] >= 0.0) {
+        // Accept-Language: header
+        if (http_config_param->ignore_accept_language_mismatch & vary_skip_mask) {
+          // Ignore it
+          q[3] = 1.0;
+        } else {
+          accept_field = client_request->field_find(MIME_FIELD_ACCEPT_LANGUAGE, MIME_LEN_ACCEPT_LANGUAGE);
+          content_field = obj_origin_server_response->field_find(MIME_FIELD_CONTENT_LANGUAGE, MIME_LEN_CONTENT_LANGUAGE);
+          cached_accept_field = obj_client_request->field_find(MIME_FIELD_ACCEPT_LANGUAGE, MIME_LEN_ACCEPT_LANGUAGE);
+
+          // absence in both requests counts as exact match
+          if (accept_field == NULL && cached_accept_field == NULL) {
+            Debug("http_alternate", "Exact match for ACCEPT LANGUAGE (not in request nor cache)");
+            q[3] = 1.001; //slightly higher weight to this guy
+          } else {
+            q[3] = calculate_quality_of_accept_language_match(accept_field, content_field, cached_accept_field);
+          }
+        }
+      }
+    }
+  }
+
+  // final quality is minimum Q, or -1, if some match failed //
+  Q = ((q[0] < 0) || (q[1] < 0) || (q[2] < 0) || (q[3] < 0)) ? -1.0 : q[0] * q[1] * q[2] * q[3];
+
+  Debug("http_match", "    CalcQualityOfMatch: Accept match = %g", q[0]);
+  Debug("http_seq", "    CalcQualityOfMatch: Accept match = %g", q[0]);
+  Debug("http_alternate", "Content-Type and Accept %f", q[0]);
+
+  Debug("http_match", "    CalcQualityOfMatch: AcceptCharset match = %g", q[1]);
+  Debug("http_seq", "    CalcQualityOfMatch: AcceptCharset match = %g", q[1]);
+  Debug("http_alternate", "Content-Type and Accept-Charset %f", q[1]);
+
+  Debug("http_match", "    CalcQualityOfMatch: AcceptEncoding match = %g", q[2]);
+  Debug("http_seq", "    CalcQualityOfMatch: AcceptEncoding match = %g", q[2]);
+  Debug("http_alternate", "Content-Encoding and Accept-Encoding %f", q[2]);
+
+  Debug("http_match", "    CalcQualityOfMatch: AcceptLanguage match = %g", q[3]);
+  Debug("http_seq", "    CalcQualityOfMatch: AcceptLanguage match = %g", q[3]);
+  Debug("http_alternate", "Content-Language and Accept-Language %f", q[3]);
+
+  Debug("http_alternate", "Mult's Quality Factor: %f", Q);
+  Debug("http_alternate", "----------End of Alternate----------");
+
+  int force_alt = 0;
+
+  if (Q > 0.0) {
+    APIHook *hook;
+    HttpAltInfo info;
+    float qvalue;
+
+    hook = http_global_hooks->get(TS_HTTP_SELECT_ALT_HOOK);
+    if (hook) {
+      info.m_client_req.copy_shallow(client_request);
+      info.m_cached_req.copy_shallow(obj_client_request);
+      info.m_cached_resp.copy_shallow(obj_origin_server_response);
+      qvalue = 1.0;
+
+      while (hook) {
+        info.m_qvalue = 1.0;
+        hook->invoke(TS_EVENT_HTTP_SELECT_ALT, &info);
+        hook = hook->m_link.next;
+        if (info.m_qvalue < 0.0) {
+          info.m_qvalue = 0.0;
+        } else if (info.m_qvalue > 1.0) {
+          if (info.m_qvalue == FLT_MAX)
+            force_alt = 1;
+          info.m_qvalue = 1.0;
+        }
+        qvalue *= info.m_qvalue;
+      }
+      Q *= qvalue;
+
+      // Clear out any SDK allocated values from the
+      //   hdr handles
+      info.m_client_req.clear();
+      info.m_cached_req.clear();
+      info.m_cached_resp.clear();
+    }
+  }
+
+  if (Q >= 0.0 && !force_alt ) {                 // make sense to check 'variability' only if Q >= 0.0
+    // set quality to -1, if cached copy would vary for this request //
+    Variability_t variability = CalcVariability(http_config_param, client_request,
+                                                obj_client_request, obj_origin_server_response);
+
+    if (variability != VARIABILITY_NONE) {
+      Q = -1.0;
+    }
+
+    Debug("http_match", "    CalcQualityOfMatch: CalcVariability says variability = %d",
+          (variability != VARIABILITY_NONE));
+    Debug("http_seq", "    CalcQualityOfMatch: CalcVariability says variability = %d",
+          (variability != VARIABILITY_NONE));
+    Debug("http_match", "    CalcQualityOfMatch: Returning final Q = %g", Q);
+    Debug("http_seq", "    CalcQualityOfMatch: Returning final Q = %g", Q);
+  }
+
+  return Q;
+}
+
+/**
+  Match request Accept with response Content-Type.
+
+  If the Accept field mime-type value is *, do not attempt to match,
+  but note the q value for the wildcard match. If the type is not *,
+  but the subtype is * and the Accept type and Content type match,
+  again do not attempt to match, but note the q value. If neither of
+  these two cases, match, keeping track of the highest q value for the
+  matches. At the end of the loop over the Accept header field values,
+  if the highest q value is -1.0 (there was no specific match), if there
+  was a wildcard subtype match, set the q value to the wildcard subtype q
+  value. If there is still no match, and there is a wildcard type match,
+  set the q value to the wildcard type q value.
+
+  We allow no Content-Type headers in responses to match with quality 1.0.
+
+  @return quality (-1: no match, 0..1: poor..good).
+
+*/
+static inline bool
+do_content_types_match(char *type1, char *subtype1, char *type2, char *subtype2)
+{
+  return ((is_asterisk(type1) ||
+           is_empty(type1) ||
+           (strcasecmp(type1, type2) == 0)) &&
+          (is_asterisk(subtype1) || is_empty(subtype1) || (strcasecmp(subtype1, subtype2) == 0)));
+}
+
+float
+HttpTransactCache::calculate_quality_of_accept_match(MIMEField * accept_field, MIMEField * content_field)
+{
+  float q = -1.0;
+  const char *c_raw, *a_raw;
+  int c_raw_len, a_raw_len;
+  char c_type[32], c_subtype[32];
+  Str *a_value;
+  StrList c_param_list, a_values_list;
+  bool wildcard_type_present = false;
+  bool wildcard_subtype_present = false;
+  float wildcard_type_q = 1.0;
+  float wildcard_subtype_q = 1.0;
+
+  ink_assert((accept_field != NULL) && (content_field != NULL));
+
+  // Extract the content-type field value before the semicolon.
+  // This has to be done just once because assuming single
+  // content-type in document. If more than one content
+  // type, will have to do as in content-language, content-
+  // encoding matching where we loop over both accept and
+  // content-type fields.
+
+  c_raw = content_field->value_get(&c_raw_len);
+  HttpCompat::parse_semicolon_list(&c_param_list, c_raw, c_raw_len);
+  Str *c_param = c_param_list.head;
+
+  if (!c_param) {
+    return (1.0);
+  }
+  // Parse the type and subtype of the Content-Type field.
+  HttpCompat::parse_mime_type(c_param->str, c_type, c_subtype, sizeof(c_type), sizeof(c_subtype));
+
+  // Now loop over Accept field values.
+  // TODO: Should we check the return value (count) from this?
+  accept_field->value_get_comma_list(&a_values_list);
+
+  for (a_value = a_values_list.head; a_value; a_value = a_value->next) {
+    // Get the raw string to the current comma-sep Accept field value
+    a_raw = a_value->str;
+    a_raw_len = a_value->len;
+
+    // Extract the field value before the semicolon
+    StrList a_param_list;
+    HttpCompat::parse_semicolon_list(&a_param_list, a_raw, a_raw_len);
+
+    // Read the next type/subtype media-range
+    Str *a_param = a_param_list.head;
+    if (!a_param)
+      continue;
+
+    // Parse the type and subtype of the Accept field
+    char a_type[32], a_subtype[32];
+    HttpCompat::parse_mime_type(a_param->str, a_type, a_subtype, sizeof(a_type), sizeof(a_subtype));
+
+//      printf("matching Content-type; '%s/%s' with Accept value '%s/%s'\n",
+//             c_type,c_subtype,a_type,a_subtype);
+
+    // Is there a wildcard in the type or subtype?
+    if (is_asterisk(a_type)) {
+      wildcard_type_present = true;
+      wildcard_type_q = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+    } else if (is_asterisk(a_subtype) && (strcasecmp(a_type, c_type) == 0)) {
+      wildcard_subtype_present = true;
+      wildcard_subtype_q = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+    } else {
+
+      // No wildcard. Do explicit matching of accept and content values.
+      if (do_content_types_match(a_type, a_subtype, c_type, c_subtype)) {
+
+        float tq;
+        tq = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+        q = (tq > q ? tq : q);
+      }
+    }
+  }
+
+  // At this point either there is an explicit match, in
+  // which case q will not be -1.0 and will be returned.
+  // If there was no explicit match, but the accept field
+  // had wildcards, return the wildcard match q value.
+
+  // No explicit match, but wildcard subtype match
+  if ((q == -1.0) && (wildcard_subtype_present == true)) {
+    q = wildcard_subtype_q;
+  }
+  // No explicit match, but wildcard type match.
+  if ((q == -1.0) && (wildcard_type_present == true)) {
+    q = wildcard_type_q;
+  }
+  return (q);
+}
+
+/**
+  Match request Accept-Charset with response Content-Type.
+
+  Extract the response charset from the Content-Type field - the charset
+  is after the semicolon. Loop through the charsets in the request's
+  Accept-Charset field. If the Accept-Charset value is a wildcard, do not
+  attempt to match. Otherwise match and note the highest q value. If after
+  the loop the q value is -1, indicating no match, then if Accept-Charset
+  had a wildcard, allow it to match - setting q to the wildcard q value.
+  If there is still no match and the Content-Type was the default charset,
+  allow a match with a q value of 1.0.
+
+  We allow no Content-Type headers in responses to match with quality 1.0.
+
+  @return quality (-1: no match, 0..1: poor..good).
+
+*/
+static inline bool
+does_charset_match(char *charset1, char *charset2)
+{
+  return (is_asterisk(charset1) || is_empty(charset1) || (strcasecmp(charset1, charset2) == 0));
+}
+
+
+float
+HttpTransactCache::calculate_quality_of_accept_charset_match(MIMEField * accept_field,
+                                                             MIMEField * content_field, MIMEField * cached_accept_field)
+{
+  float q = -1.0;
+  const char *c_raw, *a_raw, *ca_raw;
+  int c_raw_len, a_raw_len, ca_raw_len;
+  StrList a_values_list;
+  Str *a_value;
+  char c_charset[128];
+  char *a_charset;
+  int a_charset_len;
+  const char *default_charset = "utf-8";
+  bool wildcard_present = false;
+  float wildcard_q = 1.0;
+
+  // prefer exact matches
+  if (accept_field && cached_accept_field) {
+    a_raw = accept_field->value_get(&a_raw_len);
+    ca_raw = cached_accept_field->value_get(&ca_raw_len);
+    if (a_raw && ca_raw && a_raw_len == ca_raw_len && !strncmp(a_raw, ca_raw, a_raw_len)) {
+      Debug("http_alternate", "Exact match for ACCEPT CHARSET");
+      return (float) 1.001;     //slightly higher weight to this guy
+    }
+  }
+  // return match if either ac or ct is missing
+  // this check is different from accept-encoding
+  if (accept_field == NULL || content_field == NULL) {
+    return (float) 1.0;
+  }
+  // get the charset of this content-type //
+  c_raw = content_field->value_get(&c_raw_len);
+  if (!HttpCompat::lookup_param_in_semicolon_string(c_raw, c_raw_len, "charset", c_charset, sizeof(c_charset) - 1)) {
+    ink_strlcpy(c_charset, default_charset, sizeof(c_charset));
+  }
+  // Now loop over Accept-Charset field values.
+  // TODO: Should we check the return value (count) from this?
+  accept_field->value_get_comma_list(&a_values_list);
+
+  for (a_value = a_values_list.head; a_value; a_value = a_value->next) {
+    // Get the raw string to the current comma-sep Accept-Charset field value
+    a_raw = a_value->str;
+    a_raw_len = a_value->len;
+
+    // Extract the field value before the semicolon
+    StrList a_param_list(true); // FIXME: copies & NUL-terminates strings
+    HttpCompat::parse_semicolon_list(&a_param_list, a_raw, a_raw_len);
+
+    if (a_param_list.head) {
+      a_charset = (char *) a_param_list.head->str;
+      a_charset_len = a_param_list.head->len;
+    } else
+      continue;
+
+//      printf("matching Content-type; '%s' with Accept-Charset value '%s'\n",
+//             c_charset,a_charset);
+
+    // dont match wildcards //
+    if ((a_charset_len == 1) && (a_charset[0] == '*')) {
+      wildcard_present = true;
+      wildcard_q = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+    } else {
+      // if type matches, get the Q factor //
+      if (does_charset_match(a_charset, c_charset)) {
+        float tq;
+        tq = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+        q = (tq > q ? tq : q);
+      }
+    }
+  }
+
+  // if no match and wildcard present, allow match //
+  if ((q == -1.0) && (wildcard_present == true)) {
+    q = wildcard_q;
+  }
+  // if no match, still allow default_charset //
+  if ((q == -1) && (strcasecmp(c_charset, default_charset) == 0)) {
+    q = 1.0;
+  }
+  return (q);
+}
+
+/**
+  Match request Accept-Encoding with response Content-Encoding.
+
+  First determine if the cached document has identity encoding. This
+  can be the case if the document has no Content-Encoding header field
+  or if the Content-Encoding field explicitly lists "identity". Then,
+  if there is no Accept-Encoding header and the cached response uses
+  identity encoding return a match. If there is no Accept-Encoding header
+  and the cached document uses some other form of encoding, also return
+  a match, albeit one with a slightly lower q value (0.999).
+
+  If none of the above cases occurs, compare Content-Encoding with
+  Accept-Encoding, by looping over the Content-Encoding values (there
+  may be more than one, since a document may be gzipped, followed by
+  compressed, etc.). If any of the Content-Encoding values are not in
+  the Accept-Encoding header, exit the loop. Before exiting, if there
+  has not been a match, match a wildcard in the Accept-Encoding field
+  and if still no match, match an identity encoding - this may happen
+  if the request did not list "identity" in the Accept-Encoding field,
+  but the response listed it in the Content-Encoding field. In this last
+  case, match with a q value of 0.001.
+
+  The return values are:
+    - -1.0: Doesn't match
+    - 0.999: No Accept-Encoding header, and Content-Encoding does not list
+      "identity".
+    - 0.001: Accept-Encoding was not empty, but Content-Encoding was
+      either empty or explicitly listed "identity".
+    - 0.0..1.0: Matches with a quality between 0 (poor) and 1 (good).
+
+  @return quality (-1: no match, 0..1: poor..good).
+
+*/
+static inline bool
+does_encoding_match(char *enc1, const char *enc2)
+{
+  if (is_asterisk(enc1) || ((strcasecmp(enc1, enc2)) == 0))
+    return true;
+
+  //rfc2616,sec3.5: applications SHOULD consider "x-gzip" and "x-compress" to be
+  //                equivalent to "gzip" and "compress" respectively
+  if ((!strcasecmp(enc1, "gzip") && !strcasecmp(enc2, "x-gzip")) ||
+      (!strcasecmp(enc1, "x-gzip") && !strcasecmp(enc2, "gzip")) ||
+      (!strcasecmp(enc1, "compress") && !strcasecmp(enc2, "x-compress")) ||
+      (!strcasecmp(enc1, "x-compress") && !strcasecmp(enc2, "compress"))
+    ) {
+    return true;
+  }
+
+  return false;
+}
+
+ContentEncoding
+HttpTransactCache::match_gzip(MIMEField * accept_field)
+{
+  Str *a_value;
+  const char *a_raw;
+  StrList a_values_list;
+  if (!accept_field) {
+    return NO_GZIP;
+  }
+  // TODO: Should we check the return value (count) here?
+  accept_field->value_get_comma_list(&a_values_list);
+
+  for (a_value = a_values_list.head; a_value; a_value = a_value->next) {
+    char *a_encoding = NULL;
+    StrList a_param_list;
+    a_raw = a_value->str;
+    HttpCompat::parse_semicolon_list(&a_param_list, a_raw);
+    if (a_param_list.head)
+      a_encoding = (char *) a_param_list.head->str;
+    else
+      continue;
+    float q;
+    q = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+    if (q != 0 && does_encoding_match(a_encoding, "gzip")) {
+      return GZIP;
+    }
+  }
+  return NO_GZIP;
+}
+
+// TODO: This used to take a length for c_raw, but that was never used, so removed it from the prototype.
+static inline bool
+match_accept_content_encoding(const char *c_raw,
+                              MIMEField * accept_field, bool * wildcard_present, float *wildcard_q, float *q)
+{
+  Str *a_value;
+  const char *a_raw;
+  StrList a_values_list;
+
+  if (!accept_field) {
+    return false;
+  }
+  // loop over Accept-Encoding elements, looking for match //
+  // TODO: Should we check the return value (count) here?
+  accept_field->value_get_comma_list(&a_values_list);
+
+  for (a_value = a_values_list.head; a_value; a_value = a_value->next) {
+    char *a_encoding = NULL;
+    StrList a_param_list;
+
+    // Get the raw string to the current comma-sep Accept-Charset field value
+    a_raw = a_value->str;
+
+    // break Accept-Encoding piece into semi-colon separated parts //
+    HttpCompat::parse_semicolon_list(&a_param_list, a_raw);
+    if (a_param_list.head)
+      a_encoding = (char *) a_param_list.head->str;
+    else
+      continue;
+
+    if (is_asterisk(a_encoding)) {
+      *wildcard_present = true;
+      *wildcard_q = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+      return true;
+    } else if (does_encoding_match(a_encoding, c_raw)) {
+      // if type matches, get the Q factor //
+      float tq;
+      tq = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+      *q = (tq > *q ? tq : *q);
+
+      return true;
+    } else {
+      // so this c_raw value did not match this a_raw value. big deal.
+    }
+  }
+  return false;
+}
+
+float
+HttpTransactCache::calculate_quality_of_accept_encoding_match(MIMEField * accept_field,
+                                                              MIMEField * content_field,
+                                                              MIMEField * cached_accept_field)
+{
+
+  float q = -1.0;
+  bool is_identity_encoding = false;
+  const char *c_encoding;
+  int c_encoding_len;
+  bool wildcard_present = false;
+  float wildcard_q = 1.0;
+  StrList c_values_list;
+  Str *c_value;
+  const char *a_raw, *ca_raw;
+  int a_raw_len, ca_raw_len;
+
+
+  // prefer exact matches
+  if (accept_field && cached_accept_field) {
+    a_raw = accept_field->value_get(&a_raw_len);
+    ca_raw = cached_accept_field->value_get(&ca_raw_len);
+    if (a_raw && ca_raw && a_raw_len == ca_raw_len && !strncmp(a_raw, ca_raw, a_raw_len)) {
+      Debug("http_alternate", "Exact match for ACCEPT ENCODING");
+      return (float) 1.001;     //slightly higher weight to this guy
+    }
+  }
+  // return match if both ae and ce are missing
+  // this check is different from accept charset
+  if (accept_field == NULL && content_field == NULL) {
+    return (float) 1.0;
+  }
+  // if no Content-Encoding, treat as "identity" //
+  if (!content_field) {
+    Debug("http_match", "[calculate_quality_accept_encoding_match]: " "response hdr does not have content-encoding.");
+    is_identity_encoding = true;
+  } else {
+    // TODO: Should we check the return value (count) here?
+    content_field->value_get_comma_list(&c_values_list);
+
+    c_encoding = content_field->value_get(&c_encoding_len);
+    if (c_encoding_len == 0) {
+      is_identity_encoding = true;
+    } else {
+      // does this document have the identity encoding? //
+      for (c_value = c_values_list.head; c_value; c_value = c_value->next) {
+        c_encoding = c_value->str;
+        c_encoding_len = c_value->len;
+        if ((c_encoding_len >= 8) && (strncasecmp(c_encoding, "identity", 8) == 0)) {
+          is_identity_encoding = true;
+          break;
+        }
+      }
+    }
+  }
+
+  ///////////////////////////////////////////////////////////////////////
+  // if no Accept-Encoding header, only match identity                 //
+  //   The 1.1 spec says servers MAY assume that clients will accept   //
+  //   any encoding if no header is sent.  Unforntunately, this does   //
+  //   not work 1.0 clients & is particularly thorny when the proxy    //
+  //   created the enconding as the result of a transform.  Http 1.1   //
+  //   purists would say that if proxy encodes something it's really   //
+  //   a transfer-encoding and not a content-encoding but again this   //
+  //   causes problems with 1.0 clients                                //
+  ///////////////////////////////////////////////////////////////////////
+  if (!accept_field) {
+    if (is_identity_encoding) {
+      if (!cached_accept_field) {
+        return ((float) 1.0);
+      } else {
+        return ((float) 0.001);
+      }
+    } else {
+      return ((float) -1.0);
+    }
+  }
+
+  // handle special case where no content-encoding in response, but
+  // request has an accept-encoding header, possibly with the identity
+  // field, with a q value;
+  if (!content_field) {
+    if (!match_accept_content_encoding("identity",
+                                       accept_field, &wildcard_present, &wildcard_q, &q)) {
+
+      // CE was not returned, and AE does not have identity
+      if (match_gzip(accept_field) == GZIP && match_gzip(cached_accept_field) == GZIP) {
+        return (float) 1.0;
+      }
+      goto encoding_wildcard;
+    }
+    //use q from identity match
+
+  } else {
+    // "Accept-encoding must correctly handle multiple content encoding"
+    // The combined quality factor is the product of all quality factors.
+    // (Note that there may be other possible choice, eg, min(),
+    // but I think multiplication is the best.)
+    // For example, if "content-encoding: a, b", and quality factors
+    // of a and b (in accept-encoding header) are q_a and q_b, resp,
+    // then the combined quality factor is (q_a * q_b).
+    // If any one of the content-encoding is not matched,
+    // then the q value will not be changed.
+    float combined_q = 1.0;
+    for (c_value = c_values_list.head; c_value; c_value = c_value->next) {
+      float this_q = -1.0;
+      if (!match_accept_content_encoding(c_value->str,
+                                         accept_field, &wildcard_present, &wildcard_q, &this_q)) {
+        goto encoding_wildcard;
+      }
+      combined_q *= this_q;
+    }
+    q = combined_q;
+  }
+
+encoding_wildcard:
+  // match the wildcard now //
+  if ((q == -1.0) && (wildcard_present == true)) {
+    q = wildcard_q;
+  }
+  /////////////////////////////////////////////////////////////////////////
+  // there was an Accept-Encoding, but it didn't match anything, at      //
+  // any quality level --- if this is an identity-coded document, that's //
+  // still okay, but otherwise, this is just not a match at all.         //
+  /////////////////////////////////////////////////////////////////////////
+  if ((q == -1.0) && is_identity_encoding) {
+    if (match_gzip(accept_field) == GZIP) {
+      if (match_gzip(cached_accept_field) == GZIP) {
+        return (float) 1.0;
+      } else {
+        // always try to fetch GZIP content if we have not tried sending AE before
+        return (float) -1.0;
+      }
+    } else if (cached_accept_field && match_gzip(cached_accept_field) != GZIP) {
+      return (float) 0.001;
+    } else {
+      return (float) -1.0;
+    }
+  }
+//      q = (float)-1.0;
+  return (q);
+}
+
+/**
+  Match request Accept-Language with response Content-Language.
+
+  Language matching is a little more complicated because of "ranges".
+  First, no Accept-Language header or no Content-Language headers match
+  with q of 1. Otherwise, loop over Content-Languages. If there is a
+  match with a language in the Accept-Language field, keep track of
+  how many characters were in the value. The q value for the longest
+  range is returned. If there was no explicit match or a mismatch,
+  try wildcard matching.
+
+  @return quality (-1: no match, 0..1: poor..good).
+
+*/
+static inline bool
+does_language_range_match(const char *range1, const char *range2)
+{
+  while (*range1 && *range2 && (ParseRules::ink_tolower(*range1) == ParseRules::ink_tolower(*range2))) {
+    range1 += 1;
+    range2 += 1;
+  }
+
+  // matches if range equals tag, or if range is a lang prefix of tag
+  if ((((*range1 == NUL) && (*range2 == NUL)) || ((*range1 == NUL) && (*range2 == '-')))) {
+    return true;
+  }
+
+  return false;
+}
+
+static inline bool
+match_accept_content_language(const char *c_raw,
+                              MIMEField * accept_field,
+                              bool * wildcard_present,
+                              float *wildcard_q, float *q, int *a_range_length)
+{
+  const char *a_raw;
+  int a_raw_len;
+  StrList a_values_list;
+  Str *a_value;
+
+  ink_assert(accept_field != NULL);
+
+  // loop over each language-range pattern //
+  // TODO: Should we check the return value (count) here?
+  accept_field->value_get_comma_list(&a_values_list);
+
+  for (a_value = a_values_list.head; a_value; a_value = a_value->next) {
+    a_raw = a_value->str;
+    a_raw_len = a_value->len;
+
+    char *a_range;
+    StrList a_param_list;
+
+    HttpCompat::parse_semicolon_list(&a_param_list, a_raw, a_raw_len);
+    float tq = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+
+    /////////////////////////////////////////////////////////////////////
+    // This algorithm is a bit wierd --- the resulting Q factor is     //
+    // the Q value corresponding to the LONGEST range field that       //
+    // matched, or if none matched, then the Q value of any asterisk.  //
+    // Also, if the lang value is "", meaning that no Content-Language //
+    // was specified, this document matches all accept headers.        //
+    /////////////////////////////////////////////////////////////////////
+    if (a_param_list.head) {
+      a_range = (char *) a_param_list.head->str;
+      *a_range_length = a_param_list.head->len;
+    } else {
+      continue;
+    }
+
+    if (is_asterisk(a_range)) {
+      *wildcard_present = true;
+      *wildcard_q = HttpCompat::find_Q_param_in_strlist(&a_param_list);
+      return true;
+    } else if (does_language_range_match(a_range, c_raw)) {
+      *q = tq;
+// This is disabled, so removed max_a_range_length from prototype
+//          if (*a_range_length > *max_a_range_length) {
+//              *q = tq;
+//              *max_a_range_length = *a_range_length;
+//          }
+      return true;
+    } else {
+    }
+  }
+
+  return false;
+}
+
+
+// FIX: This code is icky, and i suspect wrong in places, particularly
+//      beacuse parts of match_accept_content_language are commented out.
+//      It looks like lots of hacks were done.  The code should probably
+//      be updated to use the code in HttpCompat::match_accept_language.
+
+float
+HttpTransactCache::calculate_quality_of_accept_language_match(MIMEField * accept_field,
+                                                              MIMEField * content_field,
+                                                              MIMEField * cached_accept_field)
+{
+  float q = -1.0;
+  int a_range_length;
+  bool wildcard_present = false;
+  float wildcard_q = 1.0;
+  float min_q = 1.0;
+  bool match_found = false;
+  StrList c_values_list;
+  Str *c_value;
+  const char *c_raw, *a_raw, *ca_raw;
+  int a_raw_len, ca_raw_len;
+
+  // Bug 2393700 prefer exact matches
+  if (accept_field && cached_accept_field) {
+    a_raw = accept_field->value_get(&a_raw_len);
+    ca_raw = cached_accept_field->value_get(&ca_raw_len);
+    if (a_raw && ca_raw && a_raw_len == ca_raw_len && !strncmp(a_raw, ca_raw, a_raw_len)) {
+      Debug("http_alternate", "Exact match for ACCEPT LANGUAGE");
+      return (float) 1.001;     //slightly higher weight to this guy
+    }
+  }
+
+  if (!accept_field) {
+    return (1.0);
+  }
+  // handle special case where no content-language in response, but
+  // request has an accept-language header, possibly with the identity
+  // field, with a q value;
+
+  if (!content_field) {
+    if (match_accept_content_language("identity",
+                                      accept_field,
+                                      &wildcard_present, &wildcard_q, &q, &a_range_length)) {
+      goto language_wildcard;
+    }
+    Debug("http_match", "[calculate_quality_accept_language_match]: " "response hdr does not have content-language.");
+    return (1.0);
+  }
+
+  // loop over content languages //
+  // TODO: Should we check the return value (count) here?
+  content_field->value_get_comma_list(&c_values_list);
+  for (c_value = c_values_list.head; c_value; c_value = c_value->next) {
+    c_raw = c_value->str;
+
+    // get Content-Language value //
+    if (match_accept_content_language(c_raw,
+                                      accept_field,
+                                      &wildcard_present, &wildcard_q, &q, &a_range_length)) {
+      min_q = (min_q < q ? min_q : q);
+      match_found = true;
+    }
+  }
+  if (match_found) {
+    q = min_q;
+  } else {
+    q = -1.0;
+  }
+
+language_wildcard:
+  // match the wildcard now //
+  if ((q == -1.0) && (wildcard_present == true)) {
+    q = wildcard_q;
+  }
+  return (q);
+}
+
+/**
+  If the cached object contains a Vary header, then the object only
+  matches if ALL of the headers named in Vary are present in the new
+  request, and these match the headers in the stored request.  We relax
+  this rule to allow matches if neither the current nor original client
+  headers contained a varying header. This is different from what is
+  stated in the specs.
+
+*/
+Variability_t
+HttpTransactCache::CalcVariability(CacheLookupHttpConfig * http_config_params, HTTPHdr * client_request,
+                                   HTTPHdr * obj_client_request, HTTPHdr * obj_origin_server_response)
+{
+  ink_assert(http_config_params != NULL);
+  ink_assert(client_request != NULL);
+  ink_assert(obj_client_request != NULL);
+  ink_assert(obj_origin_server_response != NULL);
+
+  Variability_t variability = VARIABILITY_NONE;
+  if (http_config_params->cache_enable_default_vary_headers ||
+      obj_origin_server_response->presence(MIME_PRESENCE_VARY)) {
+    ///////////////////////////////////////////////////////////////////////
+    // If the origin server sent a Vary header in the response, use that //
+    // Vary, otherwise use the default. Ivry adds: However if the origin //
+    // server was a non-compliant 1.1 and did not send a Vary header,    //
+    // treat as 1.0 with no Vary header.                                 //
+    ///////////////////////////////////////////////////////////////////////
+    StrList vary_list;
+    int num_vary_values = obj_origin_server_response->value_get_comma_list(MIME_FIELD_VARY, MIME_LEN_VARY, &vary_list);
+
+    if (num_vary_values <= 0) {   // no vary hdr, so use defaults if enabled
+      const char *vary_values = NULL;
+      const char *content_type;
+      int content_type_len;
+      char type[32], subtype[32];
+
+      content_type = obj_origin_server_response->value_get(MIME_FIELD_CONTENT_TYPE,
+                                                           MIME_LEN_CONTENT_TYPE, &content_type_len);
+
+      if (content_type) {
+        HttpCompat::parse_mime_type_with_len(content_type, content_type_len, type, subtype, sizeof(type),
+                                             sizeof(subtype));
+      } else {
+        type[0] = '\0';
+        subtype[0] = '\0';
+      }
+
+      Debug("http_match", "      type = '%s', subtype = '%s'", type, subtype);
+
+      if (http_config_params->cache_enable_default_vary_headers) {
+        if (strcasecmp(type, "text") == 0) {
+          Debug("http_match", "      Using default text vary headers");
+          vary_values = http_config_params->cache_vary_default_text;
+        } else if (strcasecmp(type, "image") == 0) {
+          Debug("http_match", "      Using default image vary headers");
+          vary_values = http_config_params->cache_vary_default_images;
+        } else {
+          Debug("http_match", "      Using default other vary headers");
+          vary_values = http_config_params->cache_vary_default_other;
+        }
+      }
+      // convert the comma-sep string from the config var into a list
+      HttpCompat::parse_comma_list(&vary_list, (vary_values ? vary_values : ""));
+    }
+
+    if (is_debug_tag_set("http_match") && (vary_list.head)) {
+      Debug("http_match", "Vary list of %d elements", vary_list.count);
+      vary_list.dump(stderr);
+    }
+
+    // for each field that varies, see if current & original hdrs match //
+    for (Str *field = vary_list.head; field != NULL; field = field->next) {
+      if (field->len == 0)
+        continue;
+
+      /////////////////////////////////////////////////////////////
+      // If the field name is unhandled, we should probably do a //
+      // string comparison on the values of this extension field //
+      // but currently we just treat it equivalent to a '*'.     //
+      /////////////////////////////////////////////////////////////
+
+      Debug("http_match", "Vary: %s", field->str);
+      if (((field->str[0] == '*') && (field->str[1] == NUL))) {
+        Debug("http_match", "Wildcard variability --- object not served from cache\n");
+        variability = VARIABILITY_ALL;
+        break;
+      }
+      ////////////////////////////////////////////////////////////////////////////////////////
+      // Special case: if 'proxy.config.http.global_user_agent_header' set                  //
+      // we should ignore Vary: User-Agent even if 'proxy.config.cache.vary_on_user_agent'  //
+      // is 1. Actually the 'proxy.config.cache.vary_on_user_agent' is useless in such case //
+      ///////////////////////////////////////////////////////////////////////////////////////
+      if (http_config_params->cache_global_user_agent_header &&
+          !strcasecmp((char *) field->str, "User-Agent"))
+        continue;
+
+      // Disable Vary mismatch checking for Accept-Encoding.  This is only safe to
+      // set if you are promising to fix any Accept-Encoding/Content-Encoding mismatches.
+      if (http_config_params->ignore_accept_encoding_mismatch && 
+          !strcasecmp((char *) field->str, "Accept-Encoding"))
+        continue;
+
+      ///////////////////////////////////////////////////////////////////
+      // Take the current vary field and look up the headers in        //
+      // the current client, and the original client.  The cached      //
+      // object varies unless BOTH the current client and the original //
+      // client contain the header, and the header values are equal.   //
+      // We relax this to allow a match if NEITHER have the header.    //
+      //                                                               //
+      // While header "equality" appears to be header-specific, the    //
+      // RFC2068 spec implies that matching only needs to account for  //
+      // differences in whitespace and support for multiple headers    //
+      // with the same name.  Case is presumably also insignificant.   //
+      // Other variations (such as q=1 vs. a field with no q factor)   //
+      // mean that the values DO NOT match.                            //
+      ///////////////////////////////////////////////////////////////////
+
+      ink_assert(strlen(field->str) == field->len);
+
+      char *field_name_str = (char *) hdrtoken_string_to_wks(field->str, field->len);
+      if (field_name_str == NULL)
+        field_name_str = (char *) field->str;
+
+      MIMEField *cached_hdr_field = obj_client_request->field_find(field_name_str, field->len);
+      MIMEField *current_hdr_field = client_request->field_find(field_name_str, field->len);
+
+      // Header values match? //
+      if (!HttpCompat::do_header_values_rfc2068_14_43_match(cached_hdr_field, current_hdr_field)) {
+        variability = VARIABILITY_SOME;
+        break;
+      }
+    }
+  }
+
+  return variability;
+}
+
+/**
+  If the request has If-modified-since or If-none-match,
+  HTTP_STATUS_NOT_MODIFIED is returned if both or the existing one
+  (if only one exists) fails; otherwise, the response's status code
+  is returned.
+
+  If the request has If-unmodified-since or If-match,
+  HTTP_STATUS_PRECONDITION_FAILED is returned if one fails; otherwise,
+  the response's status code is returned.
+
+  If the request is a RANGE request with If-range,
+  HTTP_STATUS_RANGE_NOT_SATISFIABLE is returned if the If-range condition
+  is not satisfied (or fails); that means the document is changed and
+  the whole document should be returned with 200 status code. Otherwise,
+  the response's status code is returned.
+
+  @return status code: HTTP_STATUS_NOT_MODIFIED,
+    HTTP_STATUS_PRECONDITION_FAILED, or HTTP_STATUS_RANGE_NOT_SATISFIABLE.
+
+*/
+HTTPStatus
+HttpTransactCache::match_response_to_request_conditionals(HTTPHdr * request, HTTPHdr * response)
+{
+  HTTPStatus response_code = HTTP_STATUS_NONE;
+
+  ink_assert(response->status_get() != HTTP_STATUS_NOT_MODIFIED);
+  ink_assert(response->status_get() != HTTP_STATUS_PRECONDITION_FAILED);
+  ink_assert(response->status_get() != HTTP_STATUS_RANGE_NOT_SATISFIABLE);
+
+
+  if (!(request->presence(MIME_PRESENCE_IF_MODIFIED_SINCE |
+                          MIME_PRESENCE_IF_NONE_MATCH |
+                          MIME_PRESENCE_IF_UNMODIFIED_SINCE | MIME_PRESENCE_IF_MATCH | MIME_PRESENCE_RANGE))) {
+    return response->status_get();
+  }
+  // return NOT_MODIFIED only if both If-modified-since and If-none-match fail
+
+  // If-Modified-Since //
+  if (request->presence(MIME_PRESENCE_IF_MODIFIED_SINCE)) {
+    // lm_value is zero if Last-modified not exists
+    ink_time_t lm_value = response->get_last_modified();
+
+    // we won't return NOT_MODIFIED if Last-modified not exists
+    if ((lm_value == 0) || (request->get_if_modified_since() < lm_value)) {
+      return response->status_get();
+    } else {
+      // we cannot return NOT_MODIFIED yet, need to check If-none-match
+      response_code = HTTP_STATUS_NOT_MODIFIED;
+
+      if (!request->presence(MIME_PRESENCE_IF_NONE_MATCH)) {
+        return response_code;
+      }
+    }
+  }
+
+  // If-None-Match: may match weakly //
+  if (request->presence(MIME_PRESENCE_IF_NONE_MATCH)) {
+    int raw_etags_len, comma_sep_tag_list_len;
+    const char *raw_etags = response->value_get(MIME_FIELD_ETAG, MIME_LEN_ETAG, &raw_etags_len);
+    const char *comma_sep_tag_list = NULL;
+
+    if (raw_etags) {
+      comma_sep_tag_list = request->value_get(MIME_FIELD_IF_NONE_MATCH,
+                                              MIME_LEN_IF_NONE_MATCH, &comma_sep_tag_list_len);
+    } else {
+      // no Etag in the response, so there is nothing to match
+      // against those in If-none-match
+      goto L1;
+    }
+
+    if (!comma_sep_tag_list) {
+      comma_sep_tag_list = "";
+      comma_sep_tag_list_len = 0;
+    }
+
+    if (!raw_etags) {
+      raw_etags = "";
+      raw_etags_len = 0;
+    }
+    ////////////////////////////////////////////////////////////////////////
+    // If we have an etag and a if-none-match, we are talking to someone  //
+    // who is doing a 1.1 revalidate. Since this is a GET request with no //
+    // sub-ranges, we can do a weak validation.                           //
+    ////////////////////////////////////////////////////////////////////////
+    if (do_strings_match_weakly(raw_etags, raw_etags_len, comma_sep_tag_list, comma_sep_tag_list_len)) {
+      // the response already failed If-modified-since (if one exists)
+      return HTTP_STATUS_NOT_MODIFIED;
+    } else {
+      return response->status_get();
+    }
+  }
+
+L1:
+  // There is no If-none-match, and If-modified-since failed,
+  // so return NOT_MODIFIED
+  if (response_code != HTTP_STATUS_NONE) {
+    return response_code;
+  }
+
+  // return PRECONDITIONAL_FAILED if either If-unmodified-since
+  // or If-match fails
+  // BUT, return the original response code only if both pass
+
+  // If-Unmodified-Since //
+  if (request->presence(MIME_PRESENCE_IF_UNMODIFIED_SINCE)) {
+    // lm_value is zero if Last-modified not exists
+    ink_time_t lm_value = response->get_last_modified();
+
+    // Condition fails if Last-modified not exists
+    if ((request->get_if_unmodified_since() < lm_value) || (lm_value == 0)) {
+      return HTTP_STATUS_PRECONDITION_FAILED;
+    } else {
+      // we cannot return yet, need to check If-match
+      response_code = response->status_get();
+    }
+  }
+
+  // If-Match: must match strongly //
+  if (request->presence(MIME_PRESENCE_IF_MATCH)) {
+    int raw_etags_len, comma_sep_tag_list_len;
+    const char *raw_etags = response->value_get(MIME_FIELD_ETAG, MIME_LEN_ETAG, &raw_etags_len);
+    const char *comma_sep_tag_list = NULL;
+
+    if (raw_etags) {
+      comma_sep_tag_list = request->value_get(MIME_FIELD_IF_MATCH, MIME_LEN_IF_MATCH, &comma_sep_tag_list_len);
+    }
+
+    if (!comma_sep_tag_list) {
+      comma_sep_tag_list = "";
+      comma_sep_tag_list_len = 0;
+    }
+
+    if (!raw_etags) {
+      raw_etags = "";
+      raw_etags_len = 0;
+    }
+
+    if (do_strings_match_strongly(raw_etags, raw_etags_len, comma_sep_tag_list, comma_sep_tag_list_len)) {
+      // at the point, the response passed both If-unmodified-since
+      // and If-match, so we can return the original response code
+      return response->status_get();
+    } else {
+      return HTTP_STATUS_PRECONDITION_FAILED;
+    }
+  }
+  // There is no If-match, and If-unmodified-since passed,
+  // so return the original response code
+  if (response_code != HTTP_STATUS_NONE) {
+    return response_code;
+  }
+
+  // Handling If-Range header:
+  // As Range && If-Range don't occur often, we want to put the
+  // If-Range code in the end
+  if (request->presence(MIME_PRESENCE_RANGE) && request->presence(MIME_PRESENCE_IF_RANGE)) {
+    int raw_len, comma_sep_list_len;
+
+    const char *if_value = request->value_get(MIME_FIELD_IF_RANGE,
+                                              MIME_LEN_IF_RANGE,
+                                              &comma_sep_list_len);
+
+    // this is an ETag, similar to If-Match
+    if (!if_value || if_value[0] == '"' || (comma_sep_list_len > 1 && if_value[1] == '/')) {
+      if (!if_value) {
+        if_value = "";
+        comma_sep_list_len = 0;
+      }
+
+      const char *raw_etags = response->value_get(MIME_FIELD_ETAG, MIME_LEN_ETAG, &raw_len);
+
+      if (!raw_etags) {
+        raw_etags = "";
+        raw_len = 0;
+      }
+
+      if (do_strings_match_strongly(raw_etags, raw_len, if_value, comma_sep_list_len)) {
+        return response->status_get();
+      } else {
+        return HTTP_STATUS_RANGE_NOT_SATISFIABLE;
+      }
+    }
+    // this a Date, similar to If-Unmodified-Since
+    else {
+      // lm_value is zero if Last-modified not exists
+      ink_time_t lm_value = response->get_last_modified();
+
+      // condition fails if Last-modified not exists
+      if ((request->get_if_range_date() < lm_value) || (lm_value == 0)) {
+        return HTTP_STATUS_RANGE_NOT_SATISFIABLE;
+      } else {
+        return response->status_get();
+      }
+    }
+  }
+
+  return response->status_get();
+}
+
+
+/*---------------------------------------------------
+ *        class CacheLookupHttpConfig
+ *---------------------------------------------------*/
+int
+CacheLookupHttpConfig::marshal_length()
+{
+  int len = (int) sizeof(int32_t);
+  len += (cache_vary_default_text ? strlen(cache_vary_default_text) + 1 : 1);
+  len += (cache_vary_default_images ? strlen(cache_vary_default_images) + 1 : 1);
+  len += (cache_vary_default_other ? strlen(cache_vary_default_other) + 1 : 1);
+  return len;
+}
+
+int
+CacheLookupHttpConfig::marshal(char *buf, int length)
+{
+  int32_t i32_tmp;
+  char *p = buf;
+  int len;
+
+  if ((length -= sizeof(int32_t)) < 0)
+    return -1;
+
+  i32_tmp = (int32_t) cache_enable_default_vary_headers;
+  memcpy(p, &i32_tmp, sizeof(int32_t));
+  p += sizeof(int32_t);
+
+  len = (cache_vary_default_text ? strlen(cache_vary_default_text) + 1 : 1);
+  if ((length -= len) < 0)
+    return -1;
+  ink_strlcpy(p, (cache_vary_default_text ? cache_vary_default_text : ""), length);
+  p += len;
+
+  len = (cache_vary_default_images ? strlen(cache_vary_default_images) + 1 : 1);
+  if ((length -= len) < 0)
+    return -1;
+  ink_strlcpy(p, (cache_vary_default_images ? cache_vary_default_images : ""), length);
+  p += len;
+
+  len = (cache_vary_default_other ? strlen(cache_vary_default_other) + 1 : 1);
+  if ((length -= len) < 0)
+    return -1;
+  ink_strlcpy(p, (cache_vary_default_other ? cache_vary_default_other : ""), length);
+  p += len;
+
+  return (p - buf);
+}
+
+int
+CacheLookupHttpConfig::unmarshal(Arena * arena, const char *buf, int buflen)
+{
+  const char *p = buf;
+  int length = buflen;
+  int len;
+  int32_t i32_tmp;
+
+  if ((length -= sizeof(int32_t)) < 0)
+    return -1;
+
+  memcpy(&i32_tmp, p, sizeof(int32_t));
+  cache_enable_default_vary_headers = (bool) i32_tmp;
+  p += sizeof(int32_t);
+
+  len = strlen(p) + 1;
+  if ((length -= len) < 0)
+    return -1;
+  cache_vary_default_text = arena->str_store(((len == 2) ? "" : p), len - 1);
+  p += len;
+
+  len = strlen(p) + 1;
+  if ((length -= len) < 0)
+    return -1;
+  cache_vary_default_images = arena->str_store(((len == 2) ? "" : p), len - 1);
+  p += len;
+
+  len = strlen(p) + 1;
+  if ((length -= len) < 0)
+    return -1;
+  cache_vary_default_other = arena->str_store(((len == 2) ? "" : p), len - 1);
+  p += len;
+
+  return (p - buf);
+}
diff --git a/proxy/http/HttpTransactCache.h b/proxy/http/HttpTransactCache.h
new file mode 100644
index 00000000..bd6e9bd6
--- /dev/null
+++ b/proxy/http/HttpTransactCache.h
@@ -0,0 +1,143 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpTransactCache.h --
+   Created On      : Thu Mar 26 17:19:35 1998
+
+
+ ****************************************************************************/
+#if !defined (_HttpTransactCache_h_)
+#define _HttpTransactCache_h_
+
+#include "libts.h"
+
+struct CacheHTTPInfoVector;
+
+class CacheLookupHttpConfig
+{
+public:
+  bool cache_global_user_agent_header;  // 'global' user agent flag (don't need to marshal/unmarshal)
+  bool cache_enable_default_vary_headers;
+  unsigned ignore_accept_mismatch;
+  unsigned ignore_accept_language_mismatch;
+  unsigned ignore_accept_encoding_mismatch;
+  unsigned ignore_accept_charset_mismatch;
+  char *cache_vary_default_text;
+  char *cache_vary_default_images;
+  char *cache_vary_default_other;
+
+  inkcoreapi int marshal_length();
+  inkcoreapi int marshal(char *buf, int length);
+  int unmarshal(Arena * arena, const char *buf, int length);
+
+  CacheLookupHttpConfig():
+    cache_global_user_agent_header(false),
+    cache_enable_default_vary_headers(false),
+    ignore_accept_mismatch(0),
+    ignore_accept_language_mismatch(0),
+    ignore_accept_encoding_mismatch(0),
+    ignore_accept_charset_mismatch(0),
+    cache_vary_default_text(NULL), cache_vary_default_images(NULL), cache_vary_default_other(NULL)
+  { }
+
+  void *operator new(size_t size, void *mem);
+  void operator delete(void *mem);
+};
+
+extern ClassAllocator<CacheLookupHttpConfig> CacheLookupHttpConfigAllocator;
+// this is a global CacheLookupHttpConfig used to bypass SelectFromAlternates
+extern CacheLookupHttpConfig global_cache_lookup_config;
+
+inline void *
+CacheLookupHttpConfig::operator new(size_t size, void *mem)
+{
+  (void) size;
+  return mem;
+}
+
+inline void
+CacheLookupHttpConfig::operator delete(void *mem)
+{
+  CacheLookupHttpConfigAllocator.free((CacheLookupHttpConfig *) mem);
+}
+
+enum Variability_t
+{
+  VARIABILITY_NONE = 0,
+  VARIABILITY_SOME,
+  VARIABILITY_ALL
+};
+
+enum ContentEncoding
+{
+  NO_GZIP = 0,
+  GZIP
+};
+
+
+class HttpTransactCache
+{
+public:
+
+  /////////////////////////////////
+  // content negotiation support //
+  /////////////////////////////////
+
+  static int SelectFromAlternates(CacheHTTPInfoVector * cache_vector_data,
+                                  HTTPHdr * client_request, CacheLookupHttpConfig * cache_lookup_http_config_params);
+
+  static float calculate_quality_of_match(CacheLookupHttpConfig * http_config_params, HTTPHdr * client_request, // in
+                                          HTTPHdr * obj_client_request, // in
+                                          HTTPHdr * obj_origin_server_response);        // in
+
+  static float calculate_quality_of_accept_match(MIMEField * accept_field, MIMEField * content_field);
+
+  static float calculate_quality_of_accept_charset_match(MIMEField * accept_field,
+                                                         MIMEField * content_field,
+                                                         MIMEField * cached_accept_field = NULL);
+
+  static float calculate_quality_of_accept_encoding_match(MIMEField * accept_field,
+                                                          MIMEField * content_field,
+                                                          MIMEField * cached_accept_field = NULL);
+  static ContentEncoding match_gzip(MIMEField * accept_field);
+
+  static float calculate_quality_of_accept_language_match(MIMEField * accept_field,
+                                                          MIMEField * content_field,
+                                                          MIMEField * cached_accept_field = NULL);
+
+  ///////////////////////////////////////////////
+  // variability & server negotiation routines //
+  ///////////////////////////////////////////////
+
+  static Variability_t CalcVariability(CacheLookupHttpConfig * http_config_params, HTTPHdr * client_request,    // in
+                                       HTTPHdr * obj_client_request,    // in
+                                       HTTPHdr * obj_origin_server_response     // in
+    );
+
+  static HTTPStatus match_response_to_request_conditionals(HTTPHdr * ua_request, HTTPHdr * c_response);
+
+};
+
+#endif
diff --git a/proxy/http/HttpTransactHeaders.cc b/proxy/http/HttpTransactHeaders.cc
new file mode 100644
index 00000000..9be81d07
--- /dev/null
+++ b/proxy/http/HttpTransactHeaders.cc
@@ -0,0 +1,1127 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "libts.h"
+
+#include "HttpTransact.h"
+#include "HttpTransactHeaders.h"
+#include "HTTP.h"
+#include "HdrUtils.h"
+#include "HttpCompat.h"
+
+#include "I_Machine.h"
+
+bool
+HttpTransactHeaders::is_method_cacheable(int method)
+{
+  return (method == HTTP_WKSIDX_GET || method == HTTP_WKSIDX_HEAD);
+}
+
+
+bool
+HttpTransactHeaders::is_method_cache_lookupable(int method)
+{
+  // responses to GET, HEAD, and POST are cacheable
+  // URL's requested in DELETE and PUT are looked up to remove cached copies
+  return (method == HTTP_WKSIDX_GET ||
+          method == HTTP_WKSIDX_HEAD ||
+          method == HTTP_WKSIDX_POST ||
+          method == HTTP_WKSIDX_DELETE ||
+          method == HTTP_WKSIDX_PUT || method == HTTP_WKSIDX_PURGE || method == HTTP_WKSIDX_PUSH);
+}
+
+
+bool
+HttpTransactHeaders::is_this_a_hop_by_hop_header(const char *field_name)
+{
+  if (!hdrtoken_is_wks(field_name))
+    return (false);
+  if ((hdrtoken_wks_to_flags(field_name) & MIME_FLAGS_HOPBYHOP) && (field_name != MIME_FIELD_KEEP_ALIVE)) {
+    return (true);
+  } else {
+    return (false);
+  }
+}
+
+
+bool
+HttpTransactHeaders::is_this_method_supported(int the_scheme, int the_method)
+{
+  if (the_method == HTTP_WKSIDX_CONNECT) {
+    return true;
+  } else if (the_scheme == URL_WKSIDX_HTTP || the_scheme == URL_WKSIDX_HTTPS) {
+    return is_this_http_method_supported(the_method);
+  } else if ((the_scheme == URL_WKSIDX_WS || the_scheme == URL_WKSIDX_WSS) &&
+            the_method == HTTP_WKSIDX_GET) {
+    return true;
+  } else
+    return false;
+}
+
+
+void
+HttpTransactHeaders::insert_supported_methods_in_response(HTTPHdr *response, int scheme)
+{
+  int method_output_lengths[32];
+  const char *methods[] = {
+    HTTP_METHOD_CONNECT,
+    HTTP_METHOD_DELETE,
+    HTTP_METHOD_GET,
+    HTTP_METHOD_HEAD,
+    HTTP_METHOD_ICP_QUERY,
+    HTTP_METHOD_OPTIONS,
+    HTTP_METHOD_POST,
+    HTTP_METHOD_PURGE,
+    HTTP_METHOD_PUT,
+    HTTP_METHOD_PUSH,
+    HTTP_METHOD_TRACE,
+  };
+  char inline_buffer[64];
+  char *alloced_buffer, *value_buffer;
+
+  int nmethods = sizeof(methods) / sizeof(methods[0]);
+  ink_assert(nmethods <= 32);
+
+  char *p;
+  int i, is_supported;
+  size_t bytes = 0;
+  int num_methods_supported = 0;
+  MIMEField *field;
+
+  // step 1: determine supported methods, count bytes & allocate
+  for (i = 0; i < nmethods; i++) {
+    const char *method_wks = methods[i];
+    ink_assert(hdrtoken_is_wks(method_wks));
+
+    is_supported = is_this_method_supported(scheme, hdrtoken_wks_to_index(method_wks));
+
+    if (is_supported) {
+      ++num_methods_supported;
+      method_output_lengths[i] = hdrtoken_wks_to_length(method_wks);
+      bytes += method_output_lengths[i];
+      if (num_methods_supported > 1)
+        bytes += 2;             // +2 if need leading ", "
+    } else {
+      method_output_lengths[i] = 0;
+    }
+  }
+
+  // step 2: create Allow field if not present
+  field = response->field_find(MIME_FIELD_ALLOW, MIME_LEN_ALLOW);
+  if (!field) {
+    field = response->field_create(MIME_FIELD_ALLOW, MIME_LEN_ALLOW);
+    response->field_attach(field);
+  }
+  // step 3: get a big enough buffer
+  if (bytes <= sizeof(inline_buffer)) {
+    alloced_buffer = NULL;
+    value_buffer = inline_buffer;
+  } else {
+    alloced_buffer = (char *)ats_malloc(bytes);
+    value_buffer = alloced_buffer;
+  }
+
+  // step 4: build the value
+  p = value_buffer;
+  for (i = 0; i < nmethods; i++) {
+    if (method_output_lengths[i]) {
+      memcpy(p, methods[i], method_output_lengths[i]);
+      p += method_output_lengths[i];
+      if (num_methods_supported > 1) {
+        *p++ = ',';
+        *p++ = ' ';
+      }
+      --num_methods_supported;
+    }
+  }
+
+  // FIXME: do we really want to append to old list, or replace old list?
+
+  // step 5: attach new allow list to end of previous list
+  field->value_append(response->m_heap, response->m_mime, value_buffer, bytes);
+
+  // step 6: free up temp storage
+  ats_free(alloced_buffer);
+}
+
+
+void
+HttpTransactHeaders::build_base_response(HTTPHdr *outgoing_response,
+                                         HTTPStatus status,
+                                         const char *reason_phrase, int reason_phrase_len, ink_time_t date)
+{
+  if (!outgoing_response->valid()) {
+    outgoing_response->create(HTTP_TYPE_RESPONSE);
+  }
+
+  ink_assert(outgoing_response->type_get() == HTTP_TYPE_RESPONSE);
+
+  outgoing_response->version_set(HTTPVersion(1, 1));
+  outgoing_response->status_set(status);
+  outgoing_response->reason_set(reason_phrase, reason_phrase_len);
+  outgoing_response->set_date(date);
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Copy all non hop-by-hop header fields from src_hdr to new_hdr.
+// If header Date: is not present or invalid in src_hdr,
+// then the given date will be used.
+void
+HttpTransactHeaders::copy_header_fields(HTTPHdr *src_hdr,
+                                        HTTPHdr *new_hdr, bool retain_proxy_auth_hdrs, ink_time_t date)
+{
+  ink_assert(src_hdr->valid());
+  ink_assert(!new_hdr->valid());
+
+  MIMEField *field;
+  MIMEFieldIter field_iter;
+  bool date_hdr = false;
+
+  // Start with an exact duplicate
+  new_hdr->copy(src_hdr);
+
+  // Nuke hop-by-hop headers
+  //
+  //    The hop-by-hop header fields are layed out by the spec
+  //    with two adjustments
+  //      1) we treat TE as hop-by-hop because spec implies
+  //         that it is by declaring anyone who sends a TE must
+  //         include TE in the connection header.  This in
+  //         my opinion error prone and if the client doesn't follow the spec
+  //         we'll have problems with the TE being forwarded to the server
+  //         and us caching the transfer encoded documents and then
+  //         serving it to a client that can not handle it
+  //      2) Transfer enconding is copied.  If the transfer encoding
+  //         is changed for example by dechunking, the transfer encoding
+  //         should be modified when when the decision is made to dechunk it
+
+  for (field = new_hdr->iter_get_first(&field_iter); field != NULL; field = new_hdr->iter_get_next(&field_iter)) {
+    if (field->m_wks_idx == -1)
+      continue;
+
+    int field_flags = hdrtoken_index_to_flags(field->m_wks_idx);
+
+    if (field_flags & MIME_FLAGS_HOPBYHOP) {
+      // Delete header if not in special proxy_auth retention mode
+      if ((!retain_proxy_auth_hdrs) || (!(field_flags & MIME_FLAGS_PROXYAUTH))) {
+        new_hdr->field_delete(field);
+      }
+    } else if (field->m_wks_idx == MIME_WKSIDX_DATE) {
+      date_hdr = true;
+    }
+  }
+
+  // Set date hdr if not already set and valid value passed in
+  if ((date_hdr == false) && (date > 0))
+    new_hdr->set_date(date);
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Just convert the outgoing request to the appropriate version
+void
+HttpTransactHeaders::convert_request(HTTPVersion outgoing_ver, HTTPHdr *outgoing_request)
+{
+  if (outgoing_ver == HTTPVersion(1, 0)) {
+    convert_to_1_0_request_header(outgoing_request);
+  } else if (outgoing_ver == HTTPVersion(1, 1)) {
+    convert_to_1_1_request_header(outgoing_request);
+  } else if (outgoing_ver == HTTPVersion(0, 9)) {
+    // Http 0.9 is a special case - do not bother copying over fields,
+    // because they will all need to be removed anyway.
+    convert_to_0_9_request_header(outgoing_request);
+  } else {
+    Debug("http_trans", "[HttpTransactHeaders::convert_request]" "Unsupported Version - passing through");
+  }
+}
+
+////////////////////////////////////////////////////////////////////////
+// Just convert the outgoing response to the appropriate version
+void
+HttpTransactHeaders::convert_response(HTTPVersion outgoing_ver, HTTPHdr *outgoing_response)
+{
+  if (outgoing_ver == HTTPVersion(1, 0)) {
+    convert_to_1_0_response_header(outgoing_response);
+  } else if (outgoing_ver == HTTPVersion(1, 1)) {
+    convert_to_1_1_response_header(outgoing_response);
+  } else if (outgoing_ver == HTTPVersion(0, 9)) {
+    // Http 0.9 is a special case - do not bother copying over fields,
+    // because they will all need to be removed anyway.
+    convert_to_0_9_response_header(outgoing_response);
+  } else {
+    Debug("http_trans", "[HttpTransactHeaders::convert_response]" "Unsupported Version - passing through");
+  }
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Take an existing outgoing request header and make it HTTP/0.9
+void
+HttpTransactHeaders::convert_to_0_9_request_header(HTTPHdr *outgoing_request)
+{
+  // These are required
+  ink_assert(outgoing_request->method_get_wksidx() == HTTP_WKSIDX_GET);
+  ink_assert(outgoing_request->url_get()->valid());
+
+  outgoing_request->version_set(HTTPVersion(0, 9));
+
+  // HTTP/0.9 has no headers: nuke them all
+  outgoing_request->fields_clear();
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Take an existing outgoing request header and make it HTTP/1.0
+void
+HttpTransactHeaders::convert_to_1_0_request_header(HTTPHdr *outgoing_request)
+{
+  // These are required
+  ink_assert(outgoing_request->url_get()->valid());
+
+  // Set HTTP version to 1.0
+  outgoing_request->version_set(HTTPVersion(1, 0));
+
+  // FIXME (P2): Need to change cache directives into pragma, cleanly
+  //             Now, any Cache-Control hdr becomes Pragma: no-cache
+
+  if (outgoing_request->presence(MIME_PRESENCE_CACHE_CONTROL) && !outgoing_request->is_pragma_no_cache_set()) {
+    outgoing_request->value_append(MIME_FIELD_PRAGMA, MIME_LEN_PRAGMA, "no-cache", 8, true);
+  }
+  // We do not currently support chunked transfer encoding,
+  // so specify that response should use identity transfer coding.
+  //outgoing_request->value_insert(MIME_FIELD_TE, "identity;q=1.0");
+  //outgoing_request->value_insert(MIME_FIELD_TE, "chunked;q=0.0");
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Take an existing outgoing request header and make it HTTP/1.1
+void
+HttpTransactHeaders::convert_to_1_1_request_header(HTTPHdr *outgoing_request)
+{
+
+  // These are required
+  ink_assert(outgoing_request->url_get()->valid());
+  ink_assert(outgoing_request->version_get() == HTTPVersion(1, 1));
+
+  if (outgoing_request->get_cooked_pragma_no_cache() &&
+      !(outgoing_request->get_cooked_cc_mask() & MIME_COOKED_MASK_CC_NO_CACHE)) {
+    outgoing_request->value_append(MIME_FIELD_CACHE_CONTROL, MIME_LEN_CACHE_CONTROL, "no-cache", 8, true);
+  }
+  // We do not currently support chunked transfer encoding,
+  // so specify that response should use identity transfer coding.
+  //outgoing_request->value_insert(MIME_FIELD_TE, "identity;q=1.0");
+  //outgoing_request->value_insert(MIME_FIELD_TE, "chunked;q=0.0");
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Take an existing outgoing response header and make it HTTP/0.9
+void
+HttpTransactHeaders::convert_to_0_9_response_header(HTTPHdr * /* outgoing_response ATS_UNUSED */)
+{
+  // Http 0.9 does not require a response header.
+
+  // There used to be clear header here, but the state machine
+  // does not write down the response header if the client is
+  // 0.9. We need the header fields to make decisions about
+  // the size of the response body, however.
+  // There is therefore no need to clear the header.
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Take an existing outgoing response header and make it HTTP/1.0
+void
+HttpTransactHeaders::convert_to_1_0_response_header(HTTPHdr *outgoing_response)
+{
+//     // These are required
+//     ink_assert(outgoing_response->status_get());
+//     ink_assert(outgoing_response->reason_get());
+
+  // Set HTTP version to 1.0
+  outgoing_response->version_set(HTTPVersion(1, 0));
+
+  // Keep-Alive?
+
+  // Cache-Control?
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Take an existing outgoing response header and make it HTTP/1.1
+void
+HttpTransactHeaders::convert_to_1_1_response_header(HTTPHdr *outgoing_response)
+{
+  // These are required
+  ink_assert(outgoing_response->status_get());
+
+  // Set HTTP version to 1.1
+//    ink_assert(outgoing_response->version_get() == HTTPVersion (1, 1));
+  outgoing_response->version_set(HTTPVersion(1, 1));
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : calculate_document_age()
+// Description: returns age of document
+//
+// Input      :
+// Output     : ink_time_t age
+//
+// Details    :
+//   Algorithm is straight out of March 1998 1.1 specs, Section 13.2.3
+//
+///////////////////////////////////////////////////////////////////////////////
+ink_time_t
+HttpTransactHeaders::calculate_document_age(ink_time_t request_time,
+                                            ink_time_t response_time,
+                                            HTTPHdr *base_response, ink_time_t base_response_date, ink_time_t now)
+{
+  ink_time_t age_value = base_response->get_age();
+  ink_time_t date_value = 0;
+  ink_time_t apparent_age = 0;
+  ink_time_t corrected_received_age = 0;
+  ink_time_t response_delay = 0;
+  ink_time_t corrected_initial_age = 0;
+  ink_time_t current_age = 0;
+  ink_time_t resident_time = 0;
+  ink_time_t now_value = 0;
+
+  ink_time_t tmp_value = 0;
+
+  tmp_value = base_response_date;
+  date_value = (tmp_value > 0) ? tmp_value : 0;
+
+  // Deal with clock skew. Sigh.
+  //
+  // TODO solve this global clock problem
+  now_value = max(now, response_time);
+
+  ink_assert(response_time >= 0);
+  ink_assert(request_time >= 0);
+  ink_assert(response_time >= request_time);
+  ink_assert(now_value >= response_time);
+
+  if (date_value > 0) {
+    apparent_age = max((time_t) 0, (response_time - date_value));
+  }
+  if (age_value < 0) {
+    current_age = -1; // Overflow from Age: header
+  } else {
+    corrected_received_age = max(apparent_age, age_value);
+    response_delay = response_time - request_time;
+    corrected_initial_age = corrected_received_age + response_delay;
+    resident_time = now_value - response_time;
+    current_age = corrected_initial_age + resident_time;
+  }
+
+  Debug("http_age", "[calculate_document_age] age_value:              %" PRId64, (int64_t)age_value);
+  Debug("http_age", "[calculate_document_age] date_value:             %" PRId64, (int64_t)date_value);
+  Debug("http_age", "[calculate_document_age] response_time:          %" PRId64, (int64_t)response_time);
+  Debug("http_age", "[calculate_document_age] now:                    %" PRId64, (int64_t)now);
+  Debug("http_age", "[calculate_document_age] now (fixed):            %" PRId64, (int64_t)now_value);
+  Debug("http_age", "[calculate_document_age] apparent_age:           %" PRId64, (int64_t)apparent_age);
+  Debug("http_age", "[calculate_document_age] corrected_received_age: %" PRId64, (int64_t)corrected_received_age);
+  Debug("http_age", "[calculate_document_age] response_delay:         %" PRId64, (int64_t)response_delay);
+  Debug("http_age", "[calculate_document_age] corrected_initial_age:  %" PRId64, (int64_t)corrected_initial_age);
+  Debug("http_age", "[calculate_document_age] resident_time:          %" PRId64, (int64_t)resident_time);
+  Debug("http_age", "[calculate_document_age] current_age:            %" PRId64, (int64_t)current_age);
+
+  return current_age;
+}
+
+
+bool
+HttpTransactHeaders::does_server_allow_response_to_be_stored(HTTPHdr *resp)
+{
+  uint32_t cc_mask = (MIME_COOKED_MASK_CC_NO_CACHE | MIME_COOKED_MASK_CC_NO_STORE | MIME_COOKED_MASK_CC_PRIVATE);
+
+  if ((resp->get_cooked_cc_mask() & cc_mask) || (resp->get_cooked_pragma_no_cache()))
+    return false;
+  else
+    return true;
+}
+
+
+bool
+HttpTransactHeaders::downgrade_request(bool *origin_server_keep_alive, HTTPHdr *outgoing_request)
+{
+  //HTTPVersion ver;
+  /* First try turning keep_alive off */
+  if (*origin_server_keep_alive) {
+
+    *origin_server_keep_alive = false;
+    //ver.set(outgoing_request->version_get());
+
+  }
+
+  if (outgoing_request->version_get() == HTTPVersion(1, 1)) {
+
+    //ver.set (HTTPVersion (1, 0));
+    convert_to_1_0_request_header(outgoing_request);
+
+    // bz48199: only GET requests can be downgraded to HTTP/0.9
+  } else if (outgoing_request->version_get() == HTTPVersion(1, 0) &&
+             outgoing_request->method_get_wksidx() == HTTP_WKSIDX_GET) {
+
+    //ver.set (HTTPVersion (0, 9));
+    convert_to_0_9_request_header(outgoing_request);
+
+  } else {
+    return false;
+  }
+
+  return true;
+}
+
+void
+HttpTransactHeaders::generate_and_set_squid_codes(HTTPHdr *header,
+                                                 char *via_string,
+                                                 HttpTransact::SquidLogInfo *squid_codes)
+{
+  SquidLogCode log_code;
+  SquidHierarchyCode hier_code;
+  SquidHitMissCode hit_miss_code;
+
+  /////////////////////////////
+  // First the Hit-Miss Code //
+  /////////////////////////////
+  if ((via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_HIT_CONDITIONAL) ||
+      (via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_MISS_CONDITIONAL) ||
+      (via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_HIT_SERVED)) {
+    // its a cache hit.
+    // INKqa10331
+    hit_miss_code = SQUID_HIT_RESERVED;
+  } else {
+    int reason_len;
+    const char *reason = header->reason_get(&reason_len);
+    // INKqa10331
+    if (reason != NULL && reason_len >= 24 && reason[0] == '!' && reason[1] == SQUID_HIT_RESERVED)
+      hit_miss_code = SQUID_HIT_RESERVED;
+    // its a miss in the cache. find out why.
+    else if (via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_MISS_EXPIRED) {
+      hit_miss_code = SQUID_MISS_PRE_EXPIRED;
+    } else if (via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_MISS_CONFIG) {
+      hit_miss_code = SQUID_MISS_NONE;
+    } else if (via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_MISS_CLIENT) {
+      hit_miss_code = SQUID_MISS_PRAGMA_NOCACHE;
+    } else if (via_string[VIA_DETAIL_CACHE_LOOKUP] == VIA_DETAIL_MISS_METHOD) {
+      hit_miss_code = SQUID_MISS_HTTP_NON_CACHE;
+    } else if (via_string[VIA_CLIENT_REQUEST] == VIA_CLIENT_ERROR) {
+      hit_miss_code = SQUID_MISS_ERROR;
+    } else if (via_string[VIA_CLIENT_REQUEST] == VIA_CLIENT_NO_CACHE) {
+      hit_miss_code = SQUID_MISS_PRAGMA_NOCACHE;
+    } else {
+      hit_miss_code = SQUID_MISS_NONE;
+    }
+  }
+
+  //////////////////////
+  // Now the Log Code //
+  //////////////////////
+  if (via_string[VIA_CLIENT_REQUEST] == VIA_CLIENT_NO_CACHE) {
+    log_code = SQUID_LOG_TCP_CLIENT_REFRESH;
+  }
+
+  else {
+    if (via_string[VIA_CLIENT_REQUEST] == VIA_CLIENT_IMS) {
+      if ((via_string[VIA_CACHE_RESULT] == VIA_IN_CACHE_FRESH) ||
+          (via_string[VIA_CACHE_RESULT] == VIA_IN_RAM_CACHE_FRESH)) {
+        log_code = SQUID_LOG_TCP_IMS_HIT;
+      } else {
+        if (via_string[VIA_SERVER_RESULT] == VIA_SERVER_NOT_MODIFIED) {
+          log_code = SQUID_LOG_TCP_REFRESH_HIT;
+        } else {
+          log_code = SQUID_LOG_TCP_IMS_MISS;
+        }
+      }
+    }
+
+    else {
+      if (via_string[VIA_CACHE_RESULT] == VIA_IN_CACHE_STALE) {
+        if (via_string[VIA_SERVER_RESULT] == VIA_SERVER_NOT_MODIFIED) {
+          log_code = SQUID_LOG_TCP_REFRESH_HIT;
+        } else {
+          if (via_string[VIA_SERVER_RESULT] == VIA_SERVER_ERROR) {
+            log_code = SQUID_LOG_TCP_REF_FAIL_HIT;
+          } else {
+            log_code = SQUID_LOG_TCP_REFRESH_MISS;
+          }
+        }
+      } else {
+        if (via_string[VIA_CACHE_RESULT] == VIA_IN_CACHE_FRESH) {
+          log_code = SQUID_LOG_TCP_HIT;
+        } else if (via_string[VIA_CACHE_RESULT] == VIA_IN_RAM_CACHE_FRESH) {
+          log_code = SQUID_LOG_TCP_MEM_HIT;
+        } else {
+          log_code = SQUID_LOG_TCP_MISS;
+        }
+      }
+    }
+  }
+
+  ////////////////////////
+  // The Hierarchy Code //
+  ////////////////////////
+  if ((via_string[VIA_CACHE_RESULT] == VIA_IN_CACHE_FRESH) || (via_string[VIA_CACHE_RESULT] == VIA_IN_RAM_CACHE_FRESH)) {
+    hier_code = SQUID_HIER_NONE;
+  } else if (via_string[VIA_DETAIL_ICP_CONNECT] == VIA_DETAIL_ICP_SUCCESS) {
+    hier_code = SQUID_HIER_SIBLING_HIT;
+  } else if (via_string[VIA_DETAIL_PP_CONNECT] == VIA_DETAIL_PP_SUCCESS) {
+    hier_code = SQUID_HIER_PARENT_HIT;
+  } else if (via_string[VIA_DETAIL_CACHE_TYPE] == VIA_DETAIL_PARENT) {
+    hier_code = SQUID_HIER_DEFAULT_PARENT;
+  } else if (via_string[VIA_DETAIL_TUNNEL] == VIA_DETAIL_TUNNEL_NO_FORWARD) {
+    hier_code = SQUID_HIER_NONE;
+  } else {
+    hier_code = SQUID_HIER_DIRECT;
+  }
+
+  // Errors may override the other codes, so check the via string error codes last
+  switch (via_string[VIA_ERROR_TYPE]) {
+  case VIA_ERROR_AUTHORIZATION:
+    // TODO decide which one?
+    // log_code = SQUID_LOG_TCP_DENIED;
+    log_code = SQUID_LOG_ERR_PROXY_DENIED;
+    break;
+  case VIA_ERROR_CONNECTION:
+    if (log_code == SQUID_LOG_TCP_MISS) {
+      log_code = SQUID_LOG_ERR_CONNECT_FAIL;
+    }
+    break;
+  case VIA_ERROR_DNS_FAILURE:
+    log_code = SQUID_LOG_ERR_DNS_FAIL;
+    hier_code = SQUID_HIER_NONE;
+    break;
+  case VIA_ERROR_FORBIDDEN:
+    log_code = SQUID_LOG_ERR_PROXY_DENIED;
+    break;
+  case VIA_ERROR_HEADER_SYNTAX:
+    log_code = SQUID_LOG_ERR_INVALID_REQ;
+    hier_code = SQUID_HIER_NONE;
+    break;
+  case VIA_ERROR_SERVER:
+    if (log_code == SQUID_LOG_TCP_MISS || log_code == SQUID_LOG_TCP_IMS_MISS) {
+      log_code = SQUID_LOG_ERR_CONNECT_FAIL;
+    }
+    break;
+  case VIA_ERROR_TIMEOUT:
+    if (log_code == SQUID_LOG_TCP_MISS || log_code == SQUID_LOG_TCP_IMS_MISS) {
+      log_code = SQUID_LOG_ERR_READ_TIMEOUT;
+    }
+    if (hier_code == SQUID_HIER_SIBLING_HIT) {
+      hier_code = SQUID_HIER_TIMEOUT_SIBLING_HIT;
+    } else if (hier_code == SQUID_HIER_PARENT_HIT) {
+      hier_code = SQUID_HIER_TIMEOUT_PARENT_HIT;
+    } else {
+      hier_code = SQUID_HIER_TIMEOUT_DIRECT;
+    }
+    break;
+  case VIA_ERROR_CACHE_READ:
+    log_code = SQUID_LOG_TCP_SWAPFAIL;
+    hier_code = SQUID_HIER_NONE;
+    break;
+  default:
+    break;
+  }
+
+  Debug("http_trans",
+        "[Squid code generation] Hit/Miss: %d, Log: %d, Hier: %d",
+        hit_miss_code, log_code, hier_code);
+  squid_codes->log_code = log_code;
+  squid_codes->hier_code = hier_code;
+
+  if (hit_miss_code != SQUID_MISS_NONE) {
+    squid_codes->hit_miss_code = hit_miss_code;
+  } else {
+    if (squid_codes->hit_miss_code == SQUID_MISS_NONE) {
+      squid_codes->hit_miss_code = hit_miss_code;
+    } else {
+      hit_miss_code = squid_codes->hit_miss_code;
+    }
+  }
+}
+
+
+void
+HttpTransactHeaders::handle_conditional_headers(HttpTransact::CacheLookupInfo *cache_info, HTTPHdr *header)
+{
+  if (cache_info->action == HttpTransact::CACHE_DO_UPDATE) {
+    HTTPHdr *c_response = cache_info->object_read->response_get();
+
+    // wouldn't be updating cache for range requests (would be writing)
+    uint64_t mask = (MIME_PRESENCE_RANGE | MIME_PRESENCE_IF_RANGE);
+    ink_release_assert(header->presence(mask) == mask);
+
+    /*
+     * Conditional Headers
+     *  We use the if-modified-since and if-none-match headers in conjunction
+     * whenever an etag and last-modified time were supplied in the original
+     * response.
+     *
+     *  If no last-modified time was sent we use the date value
+     *
+     *  It is safe to use both the etag revalidation and last-modified
+     * revalidation together since 1.1 servers will user the etags correctly
+     * and 1.0 servers will ignore them, using instead the weaker validator.
+     */
+
+    /*
+     *  Here we override whatever modified since time might have been
+     * sent with the client. If there comes a time when the client(s) are
+     * not using a given cache primarily then we may want to create a
+     * special optimized path for this case.
+     */
+    if (c_response->presence(MIME_PRESENCE_LAST_MODIFIED)) {
+      header->set_if_modified_since(c_response->get_last_modified());
+    }
+
+    /*
+     * ETags
+     *  If-None-Match has the semantics of If-Modified-Since for opaque
+     * etag token.
+     */
+
+    MIMEField *old_field;
+    old_field = c_response->field_find(MIME_FIELD_ETAG, MIME_LEN_ETAG);
+    if (old_field) {
+      MIMEField *new_field;
+
+      new_field = header->field_find(MIME_FIELD_ETAG, MIME_LEN_ETAG);
+      if (new_field == NULL) {
+        new_field = header->field_create(MIME_FIELD_ETAG, MIME_LEN_ETAG);
+        header->field_attach(new_field);
+      }
+
+      int len;
+      const char *str = old_field->value_get(&len);
+      header->field_value_set(new_field, str, len);
+    }
+  }
+}
+
+
+void
+HttpTransactHeaders::insert_warning_header(HttpConfigParams *http_config_param, HTTPHdr *header, HTTPWarningCode code,
+                                           const char *warn_text, int warn_text_len)
+{
+  int bufsize, len;
+
+  // + 23 for 20 possible digits of warning code (long long max
+  //  digits) & 2 spaces & the string terminator
+  bufsize = http_config_param->proxy_response_via_string_len + 23;
+  if (warn_text != NULL)
+    bufsize += warn_text_len;
+  else
+    warn_text_len = 0; // Make sure it's really zero
+
+  char *warning_text = (char *)alloca(bufsize);
+
+  len = snprintf(warning_text, bufsize, "%3d %s %.*s", code, http_config_param->proxy_response_via_string, warn_text_len, warn_text);
+  header->value_set(MIME_FIELD_WARNING, MIME_LEN_WARNING, warning_text, len);
+}
+
+
+void
+HttpTransactHeaders::insert_time_and_age_headers_in_response(ink_time_t request_sent_time,
+                                                             ink_time_t response_received_time,
+                                                             ink_time_t now, HTTPHdr *base, HTTPHdr *outgoing)
+{
+  ink_time_t date = base->get_date();
+  ink_time_t current_age = calculate_document_age(request_sent_time, response_received_time, base, date, now);
+
+  outgoing->set_age(current_age); // set_age() deals with overflow properly, so pass it along
+
+  // FIX: should handle missing date when response is received, not here.
+  //      See INKqa09852.
+  if (date <= 0)
+    outgoing->set_date(now);
+}
+
+
+void
+HttpTransactHeaders::insert_server_header_in_response(const char *server_tag, int server_tag_size, HTTPHdr *h)
+{
+  if (likely(server_tag && server_tag_size > 0 && h)) {
+    h->set_server(server_tag, server_tag_size);
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : insert_via_header_in_request
+// Description: takes in existing via_string and inserts it in header
+//
+// Input      :
+// Output     :
+//
+// Details    :
+//
+// [u<client-stuff> l<cache-lookup-stuff> o<server-stuff> f<cache-fill-stuff> p<proxy-stuff>]
+//
+//      client stuff
+//              I       IMS
+//              N       no-cache
+//              A       accept headers
+//              C       cookie
+//
+//      cache lookup stuff
+//              M       miss
+//              A       in cache, not acceptable
+//              S       in cache, stale
+//              H       in cache, fresh
+//
+//      server stuff
+//              N       not-modified
+//              S       served
+//
+//      cache fill stuff
+//              F       filled into cache
+//              U       updated cache
+//
+//      proxy stuff
+//              N       not-modified
+//              S       served
+//              R       origin server revalidated
+//
+// For example:
+//
+//      [u lH o f pS]      cache hit
+//      [u lM oS fF pS]    cache miss
+//      [uN l oS f pS]     no-cache origin server fetch
+//
+//
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransactHeaders::insert_via_header_in_request(HttpTransact::State *s, HTTPHdr *header)
+{
+  char new_via_string[1024]; // 512-bytes for hostname+via string, 512-bytes for the debug info
+  char *via_string = new_via_string;
+
+  if ((s->http_config_param->proxy_hostname_len + s->http_config_param->proxy_request_via_string_len) > 512) {
+    header->value_append(MIME_FIELD_VIA, MIME_LEN_VIA, "TrafficServer", 13, true);
+    return;
+  }
+
+  char *incoming_via = s->via_string;
+  int scheme = s->orig_scheme;
+  ink_assert(scheme >= 0);
+
+  int scheme_len = hdrtoken_index_to_length(scheme);
+  int32_t hversion = header->version_get().m_version;
+
+  memcpy(via_string, hdrtoken_index_to_wks(scheme), scheme_len);
+  via_string += scheme_len;
+
+  // Common case (I hope?)
+  if ((HTTP_MAJOR(hversion) == 1) && HTTP_MINOR(hversion) == 1) {
+    memcpy(via_string, "/1.1 ", 5);
+    via_string += 5;
+  } else {
+    *via_string++ = '/';
+    *via_string++ = '0' + HTTP_MAJOR(hversion);
+    *via_string++ = '.';
+    *via_string++ = '0' + HTTP_MINOR(hversion);
+    *via_string++ = ' ';
+  }
+  via_string += nstrcpy(via_string, s->http_config_param->proxy_hostname);
+
+  *via_string++ = '[';
+  /* I thought we should use the transaction local outgoing IP address but
+     that makes cycle detection (which is the point) unrealiable. We must
+     use the same value every time to be sure.
+  */
+  memcpy(via_string, Machine::instance()->ip_hex_string, Machine::instance()->ip_hex_string_len);
+  via_string += Machine::instance()->ip_hex_string_len;
+  *via_string++ = ']';
+  *via_string++ = ' ';
+  *via_string++ = '(';
+
+  memcpy(via_string, s->http_config_param->proxy_request_via_string, s->http_config_param->proxy_request_via_string_len);
+  via_string += s->http_config_param->proxy_request_via_string_len;
+
+  if (s->txn_conf->insert_request_via_string > 1) {
+    *via_string++ = ' ';
+    *via_string++ = '[';
+
+    // incoming_via can be max MAX_VIA_INDICES+1 long (i.e. around 25 or so)
+    if (s->txn_conf->insert_request_via_string > 2) { // Highest verbosity
+      via_string += nstrcpy(via_string, incoming_via);
+    } else {
+      memcpy(via_string, incoming_via + VIA_CLIENT, VIA_SERVER - VIA_CLIENT);
+      via_string += VIA_SERVER - VIA_CLIENT;
+    }
+    *via_string++ = ']';
+  }
+
+  *via_string++ = ')';
+  *via_string = 0;
+
+  ink_assert((size_t)(via_string - new_via_string) < (sizeof(new_via_string) - 1));
+  header->value_append(MIME_FIELD_VIA, MIME_LEN_VIA, new_via_string, via_string - new_via_string, true);
+}
+
+void
+HttpTransactHeaders::insert_hsts_header_in_response(HttpTransact::State *s, HTTPHdr *header)
+{
+  char new_hsts_string[64];
+  char *hsts_string = new_hsts_string;
+  const char include_subdomains[] = "; includeSubDomains";
+
+  // add max-age
+  int length = snprintf(new_hsts_string, sizeof(new_hsts_string), "max-age=%" PRId64, s->txn_conf->proxy_response_hsts_max_age);
+
+  // add include subdomain if set
+  if (s->txn_conf->proxy_response_hsts_include_subdomains) {
+    hsts_string += length;
+    memcpy(hsts_string, include_subdomains, sizeof(include_subdomains));
+    length += sizeof(include_subdomains);
+  }
+
+  header->value_set(MIME_FIELD_STRICT_TRANSPORT_SECURITY, MIME_LEN_STRICT_TRANSPORT_SECURITY, new_hsts_string, length);
+}
+
+void
+HttpTransactHeaders::insert_via_header_in_response(HttpTransact::State *s, HTTPHdr *header)
+{
+  char new_via_string[1024]; // 512-bytes for hostname+via string, 512-bytes for the debug info
+  char *via_string = new_via_string;
+
+  if ((s->http_config_param->proxy_hostname_len + s->http_config_param->proxy_response_via_string_len) > 512) {
+    header->value_append(MIME_FIELD_VIA, MIME_LEN_VIA, "TrafficServer", 13, true);
+    return;
+  }
+
+  char *incoming_via =  s->via_string;
+  int scheme = s->next_hop_scheme;
+
+  ink_assert(scheme >= 0);
+  int scheme_len = hdrtoken_index_to_length(scheme);
+  int32_t hversion = header->version_get().m_version;
+
+  memcpy(via_string, hdrtoken_index_to_wks(scheme), scheme_len);
+  via_string += scheme_len;
+
+  // Common case (I hope?)
+  if ((HTTP_MAJOR(hversion) == 1) && HTTP_MINOR(hversion) == 1) {
+    memcpy(via_string, "/1.1 ", 5);
+    via_string += 5;
+  } else {
+    *via_string++ = '/';
+    *via_string++ = '0' + HTTP_MAJOR(hversion);
+    *via_string++ = '.';
+    *via_string++ = '0' + HTTP_MINOR(hversion);
+    *via_string++ = ' ';
+  }
+  via_string += nstrcpy(via_string, s->http_config_param->proxy_hostname);
+  *via_string++ = ' ';
+  *via_string++ = '(';
+
+  memcpy(via_string, s->http_config_param->proxy_response_via_string, s->http_config_param->proxy_response_via_string_len);
+  via_string += s->http_config_param->proxy_response_via_string_len;
+
+  if (s->txn_conf->insert_response_via_string > 1) {
+    *via_string++ = ' ';
+    *via_string++ = '[';
+
+    // incoming_via can be max MAX_VIA_INDICES+1 long (i.e. around 25 or so)
+    if (s->txn_conf->insert_response_via_string > 2) { // Highest verbosity
+      via_string += nstrcpy(via_string, incoming_via);
+    } else {
+      memcpy(via_string, incoming_via + VIA_CACHE, VIA_PROXY - VIA_CACHE);
+      via_string += VIA_PROXY - VIA_CACHE;
+    }
+    *via_string++ = ']';
+  }
+
+  *via_string++ = ')';
+  *via_string = 0;
+
+  ink_assert((size_t)(via_string - new_via_string) < (sizeof(new_via_string) - 1));
+  header->value_append(MIME_FIELD_VIA, MIME_LEN_VIA, new_via_string, via_string - new_via_string, true);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name: insert_basic_realm_in_proxy_authenticate
+// Description: insert Basic realm into Proxy-Authenticate based on
+//              configuration
+//  fix for INKqa09089
+///////////////////////////////////////////////////////////////////////////////
+void
+HttpTransactHeaders::insert_basic_realm_in_proxy_authenticate(const char *realm, HTTPHdr *header, bool bRevPrxy)
+{
+  char new_basic_realm[128];
+  char *basic_realm;
+
+  basic_realm = new_basic_realm;
+  basic_realm += nstrcpy(basic_realm, "Basic realm=\"");
+  basic_realm += nstrcpy(basic_realm, (char *) realm);
+  *basic_realm++ = '"';
+  *basic_realm = 0;
+
+  MIMEField *auth;
+  if (false == bRevPrxy) {
+    auth = header->field_create(MIME_FIELD_PROXY_AUTHENTICATE, MIME_LEN_PROXY_AUTHENTICATE);
+  } else {
+    auth = header->field_create(MIME_FIELD_WWW_AUTHENTICATE, MIME_LEN_WWW_AUTHENTICATE);
+  }
+
+  header->field_value_set(auth, new_basic_realm, strlen(new_basic_realm));
+  header->field_attach(auth);
+}
+
+
+void
+HttpTransactHeaders::remove_conditional_headers(HTTPHdr *outgoing)
+{
+  if (outgoing->presence(MIME_PRESENCE_IF_MODIFIED_SINCE | MIME_PRESENCE_IF_UNMODIFIED_SINCE |
+                         MIME_PRESENCE_IF_MATCH | MIME_PRESENCE_IF_NONE_MATCH)) {
+
+    outgoing->field_delete(MIME_FIELD_IF_MODIFIED_SINCE, MIME_LEN_IF_MODIFIED_SINCE);
+    outgoing->field_delete(MIME_FIELD_IF_UNMODIFIED_SINCE, MIME_LEN_IF_UNMODIFIED_SINCE);
+    outgoing->field_delete(MIME_FIELD_IF_MATCH, MIME_LEN_IF_MATCH);
+    outgoing->field_delete(MIME_FIELD_IF_NONE_MATCH, MIME_LEN_IF_NONE_MATCH);
+  }
+  // TODO: how about RANGE and IF_RANGE?
+}
+
+void
+HttpTransactHeaders::remove_100_continue_headers(HttpTransact::State *s, HTTPHdr *outgoing)
+{
+  int len = 0;
+  const char *expect = s->hdr_info.client_request.value_get(MIME_FIELD_EXPECT, MIME_LEN_EXPECT, &len);
+
+  if ((len == HTTP_LEN_100_CONTINUE) && (strncasecmp(expect, HTTP_VALUE_100_CONTINUE, HTTP_LEN_100_CONTINUE) == 0)) {
+    outgoing->field_delete(MIME_FIELD_EXPECT, MIME_LEN_EXPECT);
+  }
+}
+
+
+
+////////////////////////////////////////////////////////////////////////
+// Deal with lame-o servers by removing the host name from the url.
+void
+HttpTransactHeaders::remove_host_name_from_url(HTTPHdr *outgoing_request)
+{
+  URL *outgoing_url = outgoing_request->url_get();
+  outgoing_url->nuke_proxy_stuff();
+}
+
+
+void
+HttpTransactHeaders::add_global_user_agent_header_to_request(HttpConfigParams *http_config_param, HTTPHdr *header)
+{
+  if (http_config_param->global_user_agent_header) {
+    MIMEField *ua_field;
+
+    Debug("http_trans", "Adding User-Agent: %s", http_config_param->global_user_agent_header);
+    if ((ua_field = header->field_find(MIME_FIELD_USER_AGENT, MIME_LEN_USER_AGENT)) == NULL) {
+      if (likely((ua_field = header->field_create(MIME_FIELD_USER_AGENT, MIME_LEN_USER_AGENT)) != NULL))
+        header->field_attach(ua_field);
+    }
+    // This will remove any old string (free it), and set our User-Agent.
+    if (likely(ua_field))
+      header->field_value_set(ua_field, http_config_param->global_user_agent_header,
+                              http_config_param->global_user_agent_header_size);
+  }
+}
+
+
+void
+HttpTransactHeaders::add_server_header_to_response(OverridableHttpConfigParams *http_txn_conf, HTTPHdr *header)
+{
+  if (http_txn_conf->proxy_response_server_enabled && http_txn_conf->proxy_response_server_string) {
+    MIMEField *ua_field;
+    bool do_add = true;
+
+    if ((ua_field = header->field_find(MIME_FIELD_SERVER, MIME_LEN_SERVER)) == NULL) {
+      if (likely((ua_field = header->field_create(MIME_FIELD_SERVER, MIME_LEN_SERVER)) != NULL))
+        header->field_attach(ua_field);
+    } else {
+      // There was an existing header from Origin, so only add if setting allows to overwrite.
+      do_add = (1 == http_txn_conf->proxy_response_server_enabled);
+    }
+
+    // This will remove any old string (free it), and set our Server header.
+    if (do_add && likely(ua_field)) {
+      Debug("http_trans", "Adding Server: %s", http_txn_conf->proxy_response_server_string);
+      header->field_value_set(ua_field, http_txn_conf->proxy_response_server_string, http_txn_conf->proxy_response_server_string_len);
+    }
+  }
+}
+
+
+void
+HttpTransactHeaders::remove_privacy_headers_from_request(HttpConfigParams *http_config_param,
+                                                         OverridableHttpConfigParams *http_txn_conf, HTTPHdr *header)
+{
+  if (!header)
+    return;
+
+  // From
+  if (http_txn_conf->anonymize_remove_from) {
+    Debug("anon", "removing 'From' headers");
+    header->field_delete(MIME_FIELD_FROM, MIME_LEN_FROM);
+  }
+  // Referer
+  if (http_txn_conf->anonymize_remove_referer) {
+    Debug("anon", "removing 'Referer' headers");
+    header->field_delete(MIME_FIELD_REFERER, MIME_LEN_REFERER);
+  }
+  // User-Agent
+  if (http_txn_conf->anonymize_remove_user_agent) {
+    Debug("anon", "removing 'User-agent' headers");
+    header->field_delete(MIME_FIELD_USER_AGENT, MIME_LEN_USER_AGENT);
+  }
+  // Cookie
+  if (http_txn_conf->anonymize_remove_cookie) {
+    Debug("anon", "removing 'Cookie' headers");
+    header->field_delete(MIME_FIELD_COOKIE, MIME_LEN_COOKIE);
+  }
+  // Client-ip
+  if (http_txn_conf->anonymize_remove_client_ip) {
+    Debug("anon", "removing 'Client-ip' headers");
+    header->field_delete(MIME_FIELD_CLIENT_IP, MIME_LEN_CLIENT_IP);
+  }
+  /////////////////////////////////////////////
+  // remove any other user specified headers //
+  /////////////////////////////////////////////
+
+  // FIXME: we shouldn't parse this list every time, only when the
+  // FIXME: config file changes.
+  if (http_config_param->anonymize_other_header_list) {
+    Str *field;
+    StrList anon_list(false);
+    const char *anon_string;
+
+    anon_string = http_config_param->anonymize_other_header_list;
+    Debug("anon", "removing other headers (%s)", anon_string);
+    HttpCompat::parse_comma_list(&anon_list, anon_string);
+    for (field = anon_list.head; field != NULL; field = field->next) {
+      Debug("anon", "removing '%s' headers", field->str);
+      header->field_delete(field->str, field->len);
+    }
+  }
+}
diff --git a/proxy/http/HttpTransactHeaders.h b/proxy/http/HttpTransactHeaders.h
new file mode 100644
index 00000000..cc6f475b
--- /dev/null
+++ b/proxy/http/HttpTransactHeaders.h
@@ -0,0 +1,140 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_HttpTransactHeaders_h_)
+#define _HttpTransactHeaders_h_
+
+#define ink_time_t time_t
+
+extern int nstrhex(char *d, unsigned int i);
+
+class HttpTransactHeaders
+{
+public:
+  static bool is_this_http_method_supported(int method);
+  static bool is_method_cacheable(int method);
+  static bool is_method_cache_lookupable(int method);
+  static bool is_this_a_hop_by_hop_header(const char *field_name_wks);
+  static bool is_this_method_supported(int the_scheme, int the_method);
+
+  static void insert_supported_methods_in_response(HTTPHdr * response, int the_scheme);
+
+  static void build_base_response(HTTPHdr * outgoing_response, HTTPStatus status,
+                                  const char *reason_phrase, int reason_phrase_len, ink_time_t date);
+
+  static void copy_header_fields(HTTPHdr * src_hdr, HTTPHdr * new_hdr,
+                                 bool retain_proxy_auth_hdrs, ink_time_t date = 0);
+
+  static void convert_request(HTTPVersion outgoing_ver, HTTPHdr * outgoing_request);
+  static void convert_response(HTTPVersion outgoing_ver, HTTPHdr * outgoing_response);
+  static void convert_to_0_9_request_header(HTTPHdr * outgoing_request);
+  static void convert_to_1_0_request_header(HTTPHdr * outgoing_request);
+  static void convert_to_1_1_request_header(HTTPHdr * outgoing_request);
+  static void convert_to_0_9_response_header(HTTPHdr * outgoing_response);
+  static void convert_to_1_0_response_header(HTTPHdr * outgoing_response);
+  static void convert_to_1_1_response_header(HTTPHdr * outgoing_response);
+
+  static ink_time_t calculate_document_age(ink_time_t request_time, ink_time_t response_time,
+                                           HTTPHdr * base_response, ink_time_t base_response_date, ink_time_t now);
+  static bool does_server_allow_response_to_be_stored(HTTPHdr * resp);
+  static bool downgrade_request(bool * origin_server_keep_alive, HTTPHdr * outgoing_request);
+
+  static void generate_and_set_squid_codes(HTTPHdr * header, char *via_string,
+                                          HttpTransact::SquidLogInfo * squid_codes);
+
+  static void handle_conditional_headers(HttpTransact::CacheLookupInfo * cache_info, HTTPHdr * header);
+  static void insert_warning_header(HttpConfigParams *http_config_param,
+                                    HTTPHdr *header, HTTPWarningCode code,
+                                    const char *warn_text = NULL, int warn_text_len = 0);
+  static void insert_time_and_age_headers_in_response(ink_time_t request_sent_time,
+                                                      ink_time_t response_received_time,
+                                                      ink_time_t now, HTTPHdr * base, HTTPHdr * outgoing);
+  static void insert_server_header_in_response(const char *server_tag, int server_tag_size, HTTPHdr * header);
+  static void insert_via_header_in_request(HttpTransact::State *s, HTTPHdr *header);
+  static void insert_via_header_in_response(HttpTransact::State *s, HTTPHdr *header);
+  static void insert_hsts_header_in_response(HttpTransact::State *s, HTTPHdr *header);
+
+  static bool is_request_proxy_authorized(HTTPHdr * incoming_hdr);
+
+  static void insert_basic_realm_in_proxy_authenticate(const char *realm, HTTPHdr * header, bool bRevPrxy);
+
+  static void remove_conditional_headers(HTTPHdr * outgoing);
+  static void remove_100_continue_headers(HttpTransact::State *s, HTTPHdr * outgoing);
+  static void remove_host_name_from_url(HTTPHdr * outgoing_request);
+  static void add_global_user_agent_header_to_request(HttpConfigParams *http_config_param, HTTPHdr * header);
+  static void add_server_header_to_response(OverridableHttpConfigParams *http_txn_conf, HTTPHdr * header);
+  static void remove_privacy_headers_from_request(HttpConfigParams *http_config_param,
+                                                  OverridableHttpConfigParams *http_txn_conf, HTTPHdr * header);
+
+  static int nstrcpy(char *d, const char *as);
+};
+
+
+/*****************************************************************************
+ *****************************************************************************
+ ****                                                                     ****
+ ****                     Inline Utility Routines                         ****
+ ****                                                                     ****
+ *****************************************************************************
+ *****************************************************************************/
+inline bool
+HttpTransactHeaders::is_this_http_method_supported(int method)
+{
+  return ((method == HTTP_WKSIDX_GET) ||
+          (method == HTTP_WKSIDX_POST) ||
+          (method == HTTP_WKSIDX_CONNECT) ||
+          (method == HTTP_WKSIDX_DELETE) ||
+          (method == HTTP_WKSIDX_PURGE) ||
+          (method == HTTP_WKSIDX_HEAD) ||
+          (method == HTTP_WKSIDX_OPTIONS) ||
+          (method == HTTP_WKSIDX_PUT) || (method == HTTP_WKSIDX_PUSH) || (method == HTTP_WKSIDX_TRACE));
+}
+
+inline int
+HttpTransactHeaders::nstrcpy(char *d, const char *as)
+{
+  const char *s = as;
+  while (*s)
+    *d++ = *s++;
+  return s - as;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Name       : is_request_proxy_authorized
+// Description: does request authorization meet our authentication requirement
+//
+// Input      :
+// Output     :
+//
+// Details    :
+//   Currently a place holder.
+inline bool
+HttpTransactHeaders::is_request_proxy_authorized(HTTPHdr * incoming_hdr)
+{
+  ink_assert(incoming_hdr);
+  // TODO: What do we need to do here?
+  return true;
+}
+
+#endif
diff --git a/proxy/http/HttpTunnel.cc b/proxy/http/HttpTunnel.cc
new file mode 100644
index 00000000..3e3baf2e
--- /dev/null
+++ b/proxy/http/HttpTunnel.cc
@@ -0,0 +1,1631 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpTunnel.cc
+
+   Description:
+
+
+****************************************************************************/
+
+#include "ink_config.h"
+#include "HttpConfig.h"
+#include "HttpTunnel.h"
+#include "HttpSM.h"
+#include "HttpDebugNames.h"
+#include "ParseRules.h"
+
+static const int min_block_transfer_bytes = 256;
+static char const * const CHUNK_HEADER_FMT = "%" PRIx64"\r\n";
+// This should be as small as possible because it will only hold the
+// header and trailer per chunk - the chunk body will be a reference to
+// a block in the input stream.
+static int const CHUNK_IOBUFFER_SIZE_INDEX = MIN_IOBUFFER_SIZE;
+
+char
+VcTypeCode(HttpTunnelType_t t) {
+  char zret = ' ';
+  switch (t) {
+  case HT_HTTP_CLIENT: zret = 'U'; break;
+  case HT_HTTP_SERVER: zret = 'S'; break;
+  case HT_TRANSFORM: zret = 'T'; break;
+  case HT_CACHE_READ: zret = 'R'; break;
+  case HT_CACHE_WRITE: zret = 'W'; break;
+  default: break;
+  }
+  return zret;
+}
+
+ChunkedHandler::ChunkedHandler()
+  : chunked_reader(NULL), dechunked_buffer(NULL), dechunked_size(0), dechunked_reader(NULL), chunked_buffer(NULL),
+    chunked_size(0), truncation(false), skip_bytes(0), state(CHUNK_READ_CHUNK), cur_chunk_size(0),
+    bytes_left(0), last_server_event(VC_EVENT_NONE), running_sum(0), num_digits(0),
+    max_chunk_size(DEFAULT_MAX_CHUNK_SIZE), max_chunk_header_len(0)
+{
+}
+
+void
+ChunkedHandler::init(IOBufferReader * buffer_in, HttpTunnelProducer * p)
+{
+  if (p->do_chunking)
+    init_by_action(buffer_in, ACTION_DOCHUNK);
+  else if (p->do_dechunking)
+    init_by_action(buffer_in, ACTION_DECHUNK);
+  else
+    init_by_action(buffer_in, ACTION_PASSTHRU);
+  return;
+}
+
+void
+ChunkedHandler::init_by_action(IOBufferReader *buffer_in, Action action)
+{
+  running_sum = 0;
+  num_digits = 0;
+  cur_chunk_size = 0;
+  bytes_left = 0;
+  truncation = false;
+  this->action = action;
+
+  switch (action) {
+  case ACTION_DOCHUNK:
+    dechunked_reader = buffer_in->mbuf->clone_reader(buffer_in);
+    dechunked_reader->mbuf->water_mark = min_block_transfer_bytes;
+    chunked_buffer = new_MIOBuffer(CHUNK_IOBUFFER_SIZE_INDEX);
+    chunked_size = 0;
+    break;
+  case ACTION_DECHUNK:
+    chunked_reader = buffer_in->mbuf->clone_reader(buffer_in);
+    dechunked_buffer = new_MIOBuffer(BUFFER_SIZE_INDEX_256);
+    dechunked_size = 0;
+    break;
+  case ACTION_PASSTHRU:
+    chunked_reader = buffer_in->mbuf->clone_reader(buffer_in);
+    break;
+  default:
+    ink_release_assert(!"Unknown action");
+  }
+
+  return;
+}
+
+void
+ChunkedHandler::clear()
+{
+  switch (action) {
+  case ACTION_DOCHUNK:
+    free_MIOBuffer(chunked_buffer);
+    break;
+  case ACTION_DECHUNK:
+    free_MIOBuffer(dechunked_buffer);
+    break;
+  case ACTION_PASSTHRU:
+  default:
+    break;
+  }
+
+  return;
+}
+
+void
+ChunkedHandler::set_max_chunk_size(int64_t size)
+{
+  max_chunk_size = size ? size : DEFAULT_MAX_CHUNK_SIZE;
+  max_chunk_header_len = snprintf(max_chunk_header, sizeof(max_chunk_header), CHUNK_HEADER_FMT, max_chunk_size);
+}
+
+void
+ChunkedHandler::read_size()
+{
+  int64_t bytes_used;
+  bool done = false;
+
+  while (chunked_reader->read_avail() > 0 && !done) {
+    const char *tmp = chunked_reader->start();
+    int64_t data_size = chunked_reader->block_read_avail();
+
+    ink_assert(data_size > 0);
+    bytes_used = 0;
+
+    while (data_size > 0) {
+      bytes_used++;
+      if (state == CHUNK_READ_SIZE) {
+        // The http spec says the chunked size is always in hex
+        if (ParseRules::is_hex(*tmp)) {
+          num_digits++;
+          running_sum *= 16;
+
+          if (ParseRules::is_digit(*tmp)) {
+            running_sum += *tmp - '0';
+          } else {
+            running_sum += ParseRules::ink_tolower(*tmp) - 'a' + 10;
+          }
+        } else {
+          // We are done parsing size
+          if (num_digits == 0 || running_sum < 0) {
+            // Bogus chunk size
+            state = CHUNK_READ_ERROR;
+            done = true;
+            break;
+          } else {
+            state = CHUNK_READ_SIZE_CRLF;       // now look for CRLF
+          }
+        }
+      } else if (state == CHUNK_READ_SIZE_CRLF) {       // Scan for a linefeed
+        if (ParseRules::is_lf(*tmp)) {
+          Debug("http_chunk", "read chunk size of %d bytes", running_sum);
+          bytes_left = (cur_chunk_size = running_sum);
+          state = (running_sum == 0) ? CHUNK_READ_TRAILER_BLANK : CHUNK_READ_CHUNK;
+          done = true;
+          break;
+        }
+      } else if (state == CHUNK_READ_SIZE_START) {
+        if (ParseRules::is_lf(*tmp)) {
+          running_sum = 0;
+          num_digits = 0;
+          state = CHUNK_READ_SIZE;
+        }
+      }
+      tmp++;
+      data_size--;
+    }
+    chunked_reader->consume(bytes_used);
+  }
+}
+
+// int ChunkedHandler::transfer_bytes()
+//
+//   Transfer bytes from chunked_reader to dechunked buffer
+//   Use block reference method when there is a sufficient
+//   size to move.  Otherwise, uses memcpy method
+//
+int64_t
+ChunkedHandler::transfer_bytes()
+{
+  int64_t block_read_avail, moved, to_move, total_moved = 0;
+
+  // Handle the case where we are doing chunked passthrough.
+  if (!dechunked_buffer) {
+    moved = MIN(bytes_left, chunked_reader->read_avail());
+    chunked_reader->consume(moved);
+    bytes_left = bytes_left - moved;
+    return moved;
+  }
+
+  while (bytes_left > 0) {
+    block_read_avail = chunked_reader->block_read_avail();
+    moved = 0;
+
+    to_move = MIN(bytes_left, block_read_avail);
+    if (to_move <= 0)
+      break;
+
+    if (to_move >= min_block_transfer_bytes) {
+      moved = dechunked_buffer->write(chunked_reader, bytes_left);
+    } else {
+      // Small amount of data available.  We want to copy the
+      // data rather than block reference to prevent the buildup
+      // of too many small blocks which leads to stack overflow
+      // on deallocation
+      moved = dechunked_buffer->write(chunked_reader->start(), to_move);
+    }
+
+    if (moved > 0) {
+      chunked_reader->consume(moved);
+      bytes_left = bytes_left - moved;
+      dechunked_size += moved;
+      total_moved += moved;
+    } else
+      break;
+  }
+  return total_moved;
+}
+
+void
+ChunkedHandler::read_chunk()
+{
+  int64_t b = transfer_bytes();
+
+  ink_assert(bytes_left >= 0);
+  if (bytes_left == 0) {
+    Debug("http_chunk", "completed read of chunk of %" PRId64" bytes", cur_chunk_size);
+
+    state = CHUNK_READ_SIZE_START;
+  } else if (bytes_left > 0) {
+    Debug("http_chunk", "read %" PRId64" bytes of an %" PRId64" chunk", b, cur_chunk_size);
+  }
+}
+
+void
+ChunkedHandler::read_trailer()
+{
+  int64_t bytes_used;
+  bool done = false;
+
+  while (chunked_reader->is_read_avail_more_than(0) && !done) {
+    const char *tmp = chunked_reader->start();
+    int64_t data_size = chunked_reader->block_read_avail();
+
+    ink_assert(data_size > 0);
+    for (bytes_used = 0; data_size > 0; data_size--) {
+      bytes_used++;
+
+      if (ParseRules::is_cr(*tmp)) {
+        // For a CR to signal we are almost done, the preceding
+        //  part of the line must be blank and next character
+        //  must a LF
+        state = (state == CHUNK_READ_TRAILER_BLANK) ? CHUNK_READ_TRAILER_CR : CHUNK_READ_TRAILER_LINE;
+      } else if (ParseRules::is_lf(*tmp)) {
+        // For a LF to signal we are done reading the
+        //   trailer, the line must have either been blank
+        //   or must have have only had a CR on it
+        if (state == CHUNK_READ_TRAILER_CR || state == CHUNK_READ_TRAILER_BLANK) {
+          state = CHUNK_READ_DONE;
+          Debug("http_chunk", "completed read of trailers");
+          done = true;
+          break;
+        } else {
+          // A LF that does not terminate the trailer
+          //  indicates a new line
+          state = CHUNK_READ_TRAILER_BLANK;
+        }
+      } else {
+        // A character that is not a CR or LF indicates
+        //  the we are parsing a line of the trailer
+        state = CHUNK_READ_TRAILER_LINE;
+      }
+      tmp++;
+    }
+    chunked_reader->consume(bytes_used);
+  }
+}
+
+bool ChunkedHandler::process_chunked_content()
+{
+  while (chunked_reader->is_read_avail_more_than(0) && state != CHUNK_READ_DONE && state != CHUNK_READ_ERROR) {
+    switch (state) {
+    case CHUNK_READ_SIZE:
+    case CHUNK_READ_SIZE_CRLF:
+    case CHUNK_READ_SIZE_START:
+      read_size();
+      break;
+    case CHUNK_READ_CHUNK:
+      read_chunk();
+      break;
+    case CHUNK_READ_TRAILER_BLANK:
+    case CHUNK_READ_TRAILER_CR:
+    case CHUNK_READ_TRAILER_LINE:
+      read_trailer();
+      break;
+    case CHUNK_FLOW_CONTROL:
+      return false;
+    default:
+      ink_release_assert(0);
+      break;
+    }
+  }
+  return (state == CHUNK_READ_DONE || state == CHUNK_READ_ERROR);
+}
+
+bool ChunkedHandler::generate_chunked_content()
+{
+  char tmp[16];
+  bool server_done = false;
+  int64_t r_avail;
+
+  ink_assert(max_chunk_header_len);
+
+  switch (last_server_event) {
+  case VC_EVENT_EOS:
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+    server_done = true;
+    break;
+  }
+
+  while ((r_avail = dechunked_reader->read_avail()) > 0 && state != CHUNK_WRITE_DONE) {
+    int64_t write_val = MIN(max_chunk_size, r_avail);
+
+    state = CHUNK_WRITE_CHUNK;
+    Debug("http_chunk", "creating a chunk of size %" PRId64 " bytes", write_val);
+
+    // Output the chunk size.
+    if (write_val != max_chunk_size) {
+      int len = snprintf(tmp, sizeof(tmp), CHUNK_HEADER_FMT, write_val);
+      chunked_buffer->write(tmp, len);
+      chunked_size += len;
+    } else {
+      chunked_buffer->write(max_chunk_header, max_chunk_header_len);
+      chunked_size += max_chunk_header_len;
+    }
+
+    // Output the chunk itself.
+    //
+    // BZ# 54395 Note - we really should only do a
+    //   block transfer if there is sizable amount of
+    //   data (like we do for the case where we are
+    //   removing chunked encoding in ChunkedHandler::transfer_bytes()
+    //   However, I want to do this fix with as small a risk
+    //   as possible so I'm leaving this issue alone for
+    //   now
+    //
+    chunked_buffer->write(dechunked_reader, write_val);
+    chunked_size += write_val;
+    dechunked_reader->consume(write_val);
+
+    // Output the trailing CRLF.
+    chunked_buffer->write("\r\n", 2);
+    chunked_size += 2;
+  }
+
+  if (server_done) {
+    state = CHUNK_WRITE_DONE;
+
+    // Add the chunked transfer coding trailer.
+    chunked_buffer->write("0\r\n\r\n", 5);
+    chunked_size += 5;
+    return true;
+  }
+  return false;
+}
+
+HttpTunnelProducer::HttpTunnelProducer()
+  : consumer_list(), self_consumer(NULL),
+    vc(NULL), vc_handler(NULL), read_vio(NULL), read_buffer(NULL),
+    buffer_start(NULL), vc_type(HT_HTTP_SERVER), chunking_action(TCA_PASSTHRU_DECHUNKED_CONTENT),
+    do_chunking(false), do_dechunking(false), do_chunked_passthru(false),
+    init_bytes_done(0), nbytes(0), ntodo(0), bytes_read(0),
+    handler_state(0), last_event(0), num_consumers(0), alive(false),
+    read_success(false), flow_control_source(0), name(NULL)
+{
+}
+
+uint64_t
+HttpTunnelProducer::backlog(uint64_t limit) {
+  uint64_t zret = 0;
+  // Calculate the total backlog, the # of bytes inside ATS for this producer.
+  // We go all the way through each chain to the ending sink and take the maximum
+  // over those paths. Do need to be careful about loops which can occur.
+  for ( HttpTunnelConsumer* c = consumer_list.head ; c ; c = c->link.next ) {
+    if (c->alive && c->write_vio) {
+      uint64_t n = 0;
+      if (HT_TRANSFORM == c->vc_type) {
+        n += static_cast<TransformVCChain*>(c->vc)->backlog(limit);
+      } else {
+        IOBufferReader* r = c->write_vio->get_reader();
+        if (r) {
+          n += static_cast<uint64_t>(r->read_avail());
+        }
+      }
+      if (n >= limit) return n;
+
+      if (!c->is_sink()) {
+        HttpTunnelProducer* dsp = c->self_producer;
+        if (dsp) {
+          n += dsp->backlog();
+        }
+      }
+      if (n >= limit) return n;
+      if (n > zret) zret = n;
+    }
+  }
+
+  if (chunked_handler.chunked_reader) {
+    zret += static_cast<uint64_t>(chunked_handler.chunked_reader->read_avail());
+  }
+
+  return zret;
+}
+
+/*  We set the producers in a flow chain specifically rather than
+    using a tunnel level variable in order to handle bi-directional
+    tunnels correctly. In such a case the flow control on producers is
+    not related so a single value for the tunnel won't work.
+*/
+void
+HttpTunnelProducer::set_throttle_src(HttpTunnelProducer* srcp) {
+  HttpTunnelProducer* p = this;
+  p->flow_control_source = srcp;
+  for ( HttpTunnelConsumer* c = consumer_list.head ; c ; c = c->link.next ) {
+    if (!c->is_sink()) {
+      p = c->self_producer;
+      if (p)
+        p->set_throttle_src(srcp);
+    }
+  }
+}
+
+HttpTunnelConsumer::HttpTunnelConsumer()
+  : link(), producer(NULL), self_producer(NULL), vc_type(HT_HTTP_CLIENT), vc(NULL), buffer_reader(NULL),
+    vc_handler(NULL), write_vio(NULL), skip_bytes(0), bytes_written(0), handler_state(0), alive(false),
+    write_success(false), name(NULL)
+{
+}
+
+HttpTunnel::HttpTunnel()
+  : Continuation(NULL), num_producers(0), num_consumers(0), sm(NULL), active(false)
+{
+}
+
+void
+HttpTunnel::init(HttpSM * sm_arg, ProxyMutex * amutex)
+{
+  HttpConfigParams* params = sm_arg->t_state.http_config_param;
+  sm = sm_arg;
+  active = false;
+  mutex = amutex;
+  SET_HANDLER(&HttpTunnel::main_handler);
+  flow_state.enabled_p = params->oride.flow_control_enabled;
+  if (params->oride.flow_low_water_mark > 0)
+    flow_state.low_water = params->oride.flow_low_water_mark;
+  if (params->oride.flow_high_water_mark > 0)
+    flow_state.high_water = params->oride.flow_high_water_mark;
+  // This should always be true, we handled default cases back in HttpConfig::reconfigure()
+  ink_assert(flow_state.low_water <= flow_state.high_water);
+}
+
+void
+HttpTunnel::reset()
+{
+  ink_assert(active == false);
+#ifdef DEBUG
+  for (int i = 0; i < MAX_PRODUCERS; ++i) {
+    ink_assert(producers[i].alive == false);
+  }
+  for (int j = 0; j < MAX_CONSUMERS; ++j) {
+    ink_assert(consumers[j].alive == false);
+  }
+#endif
+
+  num_producers = 0;
+  num_consumers = 0;
+  memset(consumers, 0, sizeof(consumers));
+  memset(producers, 0, sizeof(producers));
+}
+
+void
+HttpTunnel::kill_tunnel()
+{
+  for (int i = 0; i < MAX_PRODUCERS; ++i) {
+    if (producers[i].vc != NULL) {
+      chain_abort_all(&producers[i]);
+    }
+    ink_assert(producers[i].alive == false);
+  }
+  active = false;
+  this->deallocate_buffers();
+  this->deallocate_redirect_postdata_buffers();
+  this->reset();
+}
+
+HttpTunnelProducer *
+HttpTunnel::alloc_producer()
+{
+  for (int i = 0; i < MAX_PRODUCERS; ++i) {
+    if (producers[i].vc == NULL) {
+      num_producers++;
+      ink_assert(num_producers <= MAX_PRODUCERS);
+      return producers + i;
+    }
+  }
+  ink_release_assert(0);
+  return NULL;
+}
+
+HttpTunnelConsumer *
+HttpTunnel::alloc_consumer()
+{
+  for (int i = 0; i < MAX_CONSUMERS; i++) {
+    if (consumers[i].vc == NULL) {
+      num_consumers++;
+      ink_assert(num_consumers <= MAX_CONSUMERS);
+      return consumers + i;
+    }
+  }
+  ink_release_assert(0);
+  return NULL;
+}
+
+int
+HttpTunnel::deallocate_buffers()
+{
+  int num = 0;
+  ink_release_assert(active == false);
+  for (int i = 0; i < MAX_PRODUCERS; ++i) {
+    if (producers[i].read_buffer != NULL) {
+      ink_assert(producers[i].vc != NULL);
+      free_MIOBuffer(producers[i].read_buffer);
+      producers[i].read_buffer = NULL;
+      producers[i].buffer_start = NULL;
+      num++;
+    }
+
+    if (producers[i].chunked_handler.dechunked_buffer != NULL) {
+      ink_assert(producers[i].vc != NULL);
+      free_MIOBuffer(producers[i].chunked_handler.dechunked_buffer);
+      producers[i].chunked_handler.dechunked_buffer = NULL;
+      num++;
+    }
+
+    if (producers[i].chunked_handler.chunked_buffer != NULL) {
+      ink_assert(producers[i].vc != NULL);
+      free_MIOBuffer(producers[i].chunked_handler.chunked_buffer);
+      producers[i].chunked_handler.chunked_buffer = NULL;
+      num++;
+    }
+    producers[i].chunked_handler.max_chunk_header_len = 0;
+  }
+  return num;
+}
+
+void
+HttpTunnel::set_producer_chunking_action(HttpTunnelProducer * p, int64_t skip_bytes, TunnelChunkingAction_t action)
+{
+  p->chunked_handler.skip_bytes = skip_bytes;
+  p->chunking_action = action;
+
+  switch (action) {
+  case TCA_CHUNK_CONTENT:
+    p->chunked_handler.state = p->chunked_handler.CHUNK_WRITE_CHUNK;
+    break;
+  case TCA_DECHUNK_CONTENT:
+  case TCA_PASSTHRU_CHUNKED_CONTENT:
+    p->chunked_handler.state = p->chunked_handler.CHUNK_READ_SIZE;
+    break;
+  default:
+    break;
+  };
+}
+
+void
+HttpTunnel::set_producer_chunking_size(HttpTunnelProducer* p, int64_t size)
+{
+  p->chunked_handler.set_max_chunk_size(size);
+}
+
+// HttpTunnelProducer* HttpTunnel::add_producer
+//
+//   Adds a new producer to the tunnel
+//
+HttpTunnelProducer *
+HttpTunnel::add_producer(VConnection * vc,
+                         int64_t nbytes_arg,
+                         IOBufferReader * reader_start,
+                         HttpProducerHandler sm_handler, HttpTunnelType_t vc_type, const char *name_arg)
+{
+  HttpTunnelProducer *p;
+
+  Debug("http_tunnel", "[%" PRId64 "] adding producer '%s'", sm->sm_id, name_arg);
+
+  ink_assert(reader_start->mbuf);
+  if ((p = alloc_producer()) != NULL) {
+    p->vc = vc;
+    p->nbytes = nbytes_arg;
+    p->buffer_start = reader_start;
+    p->read_buffer = reader_start->mbuf;
+    p->vc_handler = sm_handler;
+    p->vc_type = vc_type;
+    p->name = name_arg;
+    p->chunking_action = TCA_PASSTHRU_DECHUNKED_CONTENT;
+
+    p->do_chunking = false;
+    p->do_dechunking = false;
+    p->do_chunked_passthru = false;
+
+    p->init_bytes_done = reader_start->read_avail();
+    if (p->nbytes < 0) {
+      p->ntodo = p->nbytes;
+    } else {                    // The byte count given us includes bytes
+      //  that alread may be in the buffer.
+      //  ntodo represents the number of bytes
+      //  the tunneling mechanism needs to read
+      //  for the producer
+      p->ntodo = p->nbytes - p->init_bytes_done;
+      ink_assert(p->ntodo >= 0);
+    }
+
+    // We are static, the producer is never "alive"
+    //   It just has data in the buffer
+    if (vc == HTTP_TUNNEL_STATIC_PRODUCER) {
+      ink_assert(p->ntodo == 0);
+      p->alive = false;
+      p->read_success = true;
+    } else {
+      p->alive = true;
+    }
+  }
+  return p;
+}
+
+// void HttpTunnel::add_consumer
+//
+//    Adds a new consumer to the tunnel.  The producer must
+//    be specified and already added to the tunnel.  Attaches
+//    the new consumer to the entry for the existing producer
+//
+//    Returns true if the consumer successfully added.  Returns
+//    false if the consumer was not added because the source failed
+//
+HttpTunnelConsumer *
+HttpTunnel::add_consumer(VConnection * vc,
+                         VConnection * producer,
+                         HttpConsumerHandler sm_handler, HttpTunnelType_t vc_type, const char *name_arg, int64_t skip_bytes)
+{
+  Debug("http_tunnel", "[%" PRId64 "] adding consumer '%s'", sm->sm_id, name_arg);
+
+  // Find the producer entry
+  HttpTunnelProducer *p = get_producer(producer);
+  ink_release_assert(p);
+
+  // Check to see if the producer terminated
+  //  without sending all of its data
+  if (p->alive == false && p->read_success == false) {
+    Debug("http_tunnel", "[%" PRId64 "] consumer '%s' not added due to producer failure", sm->sm_id, name_arg);
+    return NULL;
+  }
+  // Initialize the consumer structure
+  HttpTunnelConsumer *c = alloc_consumer();
+  c->producer = p;
+  c->vc = vc;
+  c->alive = true;
+  c->skip_bytes = skip_bytes;
+  c->vc_handler = sm_handler;
+  c->vc_type = vc_type;
+  c->name = name_arg;
+
+  // Register the consumer with the producer
+  p->consumer_list.push(c);
+  p->num_consumers++;
+
+  return c;
+}
+
+void
+HttpTunnel::chain(HttpTunnelConsumer* c, HttpTunnelProducer* p)
+{
+  p->self_consumer = c;
+  c->self_producer = p;
+  // If the flow is already throttled update the chained producer.
+  if (c->producer->is_throttled())
+    p->set_throttle_src(c->producer->flow_control_source);
+}
+
+// void HttpTunnel::tunnel_run()
+//
+//    Makes the tunnel go
+//
+void
+HttpTunnel::tunnel_run(HttpTunnelProducer * p_arg)
+{
+  Debug("http_tunnel", "tunnel_run started, p_arg is %s", p_arg ? "provided" : "NULL");
+
+  if (p_arg) {
+    producer_run(p_arg);
+  } else {
+    HttpTunnelProducer *p;
+
+    ink_assert(active == false);
+
+    for (int i = 0 ; i < MAX_PRODUCERS ; ++i) {
+      p = producers + i;
+      if (p->vc != NULL) {
+        producer_run(p);
+      }
+    }
+  }
+
+  // It is possible that there was nothing to do
+  //   due to a all transfers being zero length
+  //   If that is the case, call the state machine
+  //   back to say we are done
+  if (!is_tunnel_alive()) {
+    active = false;
+    sm->handleEvent(HTTP_TUNNEL_EVENT_DONE, this);
+  }
+}
+
+void
+HttpTunnel::producer_run(HttpTunnelProducer * p)
+{
+  // Determine whether the producer has a cache-write consumer,
+  // since all chunked content read by the producer gets dechunked
+  // prior to being written into the cache.
+  HttpTunnelConsumer *c, *cache_write_consumer = NULL;
+  bool transform_consumer = false;
+
+  for (c = p->consumer_list.head; c; c = c->link.next) {
+    if (c->vc_type == HT_CACHE_WRITE) {
+      cache_write_consumer = c;
+      break;
+    }
+  }
+
+  // bz57413
+  for (c = p->consumer_list.head; c; c = c->link.next) {
+    if (c->vc_type == HT_TRANSFORM) {
+      transform_consumer = true;
+      break;
+    }
+  }
+
+  // Determine whether the producer is to perform chunking,
+  // dechunking, or chunked-passthough of the incoming response.
+  TunnelChunkingAction_t action = p->chunking_action;
+
+  // [bug 2579251] static producers won't have handler set
+  if (p->vc != HTTP_TUNNEL_STATIC_PRODUCER) {
+    if (action == TCA_CHUNK_CONTENT)
+      p->do_chunking = true;
+    else if (action == TCA_DECHUNK_CONTENT)
+      p->do_dechunking = true;
+    else if (action == TCA_PASSTHRU_CHUNKED_CONTENT) {
+      p->do_chunked_passthru = true;
+
+      // Dechunk the chunked content into the cache.
+      if (cache_write_consumer != NULL)
+        p->do_dechunking = true;
+    }
+  }
+
+  int64_t consumer_n;
+  int64_t producer_n;
+
+  ink_assert(p->vc != NULL);
+  active = true;
+
+  IOBufferReader *chunked_buffer_start = NULL, *dechunked_buffer_start = NULL;
+  if (p->do_chunking || p->do_dechunking || p->do_chunked_passthru) {
+    producer_n = (consumer_n = INT64_MAX);
+    p->chunked_handler.init(p->buffer_start, p);
+
+    // Copy the header into the chunked/dechunked buffers.
+    if (p->do_chunking) {
+      // initialize a reader to chunked buffer start before writing to keep ref count
+      chunked_buffer_start = p->chunked_handler.chunked_buffer->alloc_reader();
+      p->chunked_handler.chunked_buffer->write(p->buffer_start, p->chunked_handler.skip_bytes);
+    } else if (p->do_dechunking) {
+      // bz57413
+      Debug("http_tunnel",
+            "[producer_run] do_dechunking p->chunked_handler.chunked_reader->read_avail() = %" PRId64"",
+            p->chunked_handler.chunked_reader->read_avail());
+
+      // initialize a reader to dechunked buffer start before writing to keep ref count
+      dechunked_buffer_start = p->chunked_handler.dechunked_buffer->alloc_reader();
+
+      // If there is no transformation then add the header to the buffer, else the
+      // client already has got the header from us, no need for it in the buffer.
+      if (!transform_consumer) {
+        p->chunked_handler.dechunked_buffer->write(p->buffer_start, p->chunked_handler.skip_bytes);
+
+        Debug("http_tunnel", "[producer_run] do_dechunking::Copied header of size %" PRId64"", p->chunked_handler.skip_bytes);
+      }
+    }
+  }
+
+  int64_t read_start_pos = 0;
+  if (p->vc_type == HT_CACHE_READ && sm->t_state.range_setup == HttpTransact::RANGE_NOT_TRANSFORM_REQUESTED) {
+    ink_assert(sm->t_state.num_range_fields == 1); // we current just support only one range entry
+    read_start_pos = sm->t_state.ranges[0]._start;
+    producer_n = (sm->t_state.ranges[0]._end - sm->t_state.ranges[0]._start)+1;
+    consumer_n = (producer_n + sm->client_response_hdr_bytes);
+  } else if (p->nbytes >= 0) {
+    consumer_n = p->nbytes;
+    producer_n = p->ntodo;
+  } else {
+    consumer_n = (producer_n = INT64_MAX);
+  }
+
+  // Do the IO on the consumers first so
+  //  data doesn't disappear out from
+  //  under the tunnel
+  ink_release_assert(p->num_consumers > 0);
+  for (c = p->consumer_list.head; c;) {
+    // Create a reader for each consumer.  The reader allows
+    // us to implement skip bytes
+    if (c->vc_type == HT_CACHE_WRITE) {
+      switch (action) {
+      case TCA_CHUNK_CONTENT:
+      case TCA_PASSTHRU_DECHUNKED_CONTENT:
+        c->buffer_reader = p->read_buffer->clone_reader(p->buffer_start);
+        break;
+      case TCA_DECHUNK_CONTENT:
+      case TCA_PASSTHRU_CHUNKED_CONTENT:
+        c->buffer_reader = p->chunked_handler.dechunked_buffer->clone_reader(dechunked_buffer_start);
+        break;
+      default:
+        break;
+      }
+    }
+    // Non-cache consumers.
+    else if (action == TCA_CHUNK_CONTENT) {
+      c->buffer_reader = p->chunked_handler.chunked_buffer->clone_reader(chunked_buffer_start);
+    } else if (action == TCA_DECHUNK_CONTENT) {
+      c->buffer_reader = p->chunked_handler.dechunked_buffer->clone_reader(dechunked_buffer_start);
+    } else {
+      c->buffer_reader = p->read_buffer->clone_reader(p->buffer_start);
+    }
+
+    // Consume bytes of the reader if we skipping bytes
+    if (c->skip_bytes > 0) {
+      ink_assert(c->skip_bytes <= c->buffer_reader->read_avail());
+      c->buffer_reader->consume(c->skip_bytes);
+    }
+    int64_t c_write = consumer_n;
+
+    // INKqa05109 - if we don't know the length leave it at
+    //  INT64_MAX or else the cache may bounce the write
+    //  because it thinks the document is too big.  INT64_MAX
+    //  is a special case for the max document size code
+    //  in the cache
+    if (c_write != INT64_MAX) {
+      c_write -= c->skip_bytes;
+    }
+    // Fix for problems with not chunked content being chunked and
+    // not sending the entire data.  The content length grows when
+    // it is being chunked.
+    if (p->do_chunking == true) {
+      c_write = INT64_MAX;
+    }
+
+    if (c_write == 0) {
+      // Nothing to do, call back the cleanup handlers
+      c->write_vio = NULL;
+      consumer_handler(VC_EVENT_WRITE_COMPLETE, c);
+    } else {
+      c->write_vio = c->vc->do_io_write(this, c_write, c->buffer_reader);
+      ink_assert(c_write > 0);
+    }
+
+    c = c->link.next;
+  }
+
+  //YTS Team, yamsat Plugin
+  // Allocate and copy partial POST data to buffers. Check for the various parameters
+  // including the maximum configured post data size
+  if (p->alive && sm->t_state.method == HTTP_WKSIDX_POST && sm->enable_redirection && (p->vc_type == HT_HTTP_CLIENT)) {
+    Debug("http_redirect", "[HttpTunnel::producer_run] client post: %" PRId64" max size: %" PRId64"",
+          p->buffer_start->read_avail(), HttpConfig::m_master.post_copy_size);
+
+    // (note that since we are not dechunking POST, this is the chunked size if chunked)
+    if (p->buffer_start->read_avail() > HttpConfig::m_master.post_copy_size) {
+      Debug("http_redirect", "[HttpTunnel::producer_handler] post exceeds buffer limit, buffer_avail=%" PRId64" limit=%" PRId64"",
+            p->buffer_start->read_avail(), HttpConfig::m_master.post_copy_size);
+      sm->enable_redirection = false;
+    } else {
+      // allocate post buffers with a new reader. The reader will be freed when p->read_buffer is freed
+      allocate_redirect_postdata_buffers(p->read_buffer->clone_reader(p->buffer_start));
+      copy_partial_post_data();
+    }
+  }                             //end of added logic for partial POST
+
+  if (p->do_chunking) {
+    // remove the chunked reader marker so that it doesn't act like a buffer guard
+    p->chunked_handler.chunked_buffer->dealloc_reader(chunked_buffer_start);
+    p->chunked_handler.dechunked_reader->consume(p->chunked_handler.skip_bytes);
+
+    // If there is data to process in the buffer, do it now
+    producer_handler(VC_EVENT_READ_READY, p);
+  } else if (p->do_dechunking || p->do_chunked_passthru) {
+    // remove the dechunked reader marker so that it doesn't act like a buffer guard
+    if (p->do_dechunking)
+      p->chunked_handler.dechunked_buffer->dealloc_reader(dechunked_buffer_start);
+
+    // bz57413
+    // If there is no transformation plugin, then we didn't add the header, hence no need to consume it
+    Debug("http_tunnel",
+          "[producer_run] do_dechunking p->chunked_handler.chunked_reader->read_avail() = %" PRId64"",
+          p->chunked_handler.chunked_reader->read_avail());
+    if (!transform_consumer && (p->chunked_handler.chunked_reader->read_avail() >= p->chunked_handler.skip_bytes)) {
+      p->chunked_handler.chunked_reader->consume(p->chunked_handler.skip_bytes);
+      Debug("http_tunnel", "[producer_run] do_dechunking p->chunked_handler.skip_bytes = %" PRId64"",
+            p->chunked_handler.skip_bytes);
+    }
+    //if(p->chunked_handler.chunked_reader->read_avail() > 0)
+    //p->chunked_handler.chunked_reader->consume(
+    //p->chunked_handler.skip_bytes);
+
+    producer_handler(VC_EVENT_READ_READY, p);
+    if (!p->chunked_handler.chunked_reader->read_avail() && sm->redirection_tries > 0 && p->vc_type == HT_HTTP_CLIENT) {     // read_avail() == 0
+      // [bug 2579251]
+      // Ugh, this is horrible but in the redirect case they are running a the tunnel again with the
+      // now closed/empty producer to trigger PRECOMPLETE.  If the POST was chunked, producer_n is set
+      // (incorrectly) to INT64_MAX.  It needs to be set to 0 to prevent triggering another read.
+      producer_n = 0;
+    }
+  }
+
+  if (p->alive) {
+    ink_assert(producer_n >= 0);
+
+    if (producer_n == 0) {
+      // Everything is already in the buffer so mark the producer as done.  We need to notify
+      // state machine that everything is done.  We use a special event to say the producers is
+      // done but we didn't do anything
+      p->alive = false;
+      p->read_success = true;
+      Debug("http_tunnel", "[%" PRId64 "] [tunnel_run] producer already done", sm->sm_id);
+      producer_handler(HTTP_TUNNEL_EVENT_PRECOMPLETE, p);
+    } else {
+      if (read_start_pos > 0) {
+        p->read_vio = ((CacheVC*)p->vc)->do_io_pread(this, producer_n, p->read_buffer, read_start_pos);
+      }
+      else {
+        p->read_vio = p->vc->do_io_read(this, producer_n, p->read_buffer);
+      }
+    }
+  }
+
+  // Now that the tunnel has started, we must remove producer's reader so
+  // that it doesn't act like a buffer guard
+  p->read_buffer->dealloc_reader(p->buffer_start);
+  p->buffer_start = NULL;
+}
+
+int
+HttpTunnel::producer_handler_dechunked(int event, HttpTunnelProducer * p)
+{
+  ink_assert(p->do_chunking);
+
+  Debug("http_tunnel", "[%" PRId64 "] producer_handler_dechunked [%s %s]", sm->sm_id, p->name, HttpDebugNames::get_event_name(event));
+
+  // We only interested in translating certain events
+  switch (event) {
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+  case VC_EVENT_EOS:
+    p->last_event =
+      p->chunked_handler.last_server_event = event;
+    // TODO: Should we check the return code?
+    p->chunked_handler.generate_chunked_content();
+    break;
+  };
+  // Since we will consume all the data if the server is actually finished
+  //   we don't have to translate events like we do in the
+  //   case producer_handler_chunked()
+  return event;
+}
+
+// int HttpTunnel::producer_handler_chunked(int event, HttpTunnelProducer* p)
+//
+//   Handles events from chunked producers.  It calls the chunking handlers
+//    if appropriate and then translates the event we got into a suitable
+//    event to represent the unchunked state, and does chunked bookeeping
+//
+int
+HttpTunnel::producer_handler_chunked(int event, HttpTunnelProducer * p)
+{
+  ink_assert(p->do_dechunking || p->do_chunked_passthru);
+
+  Debug("http_tunnel", "[%" PRId64 "] producer_handler_chunked [%s %s]", sm->sm_id, p->name, HttpDebugNames::get_event_name(event));
+
+  // We only interested in translating certain events
+  switch (event) {
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+  case VC_EVENT_EOS:
+    break;
+  default:
+    return event;
+  }
+
+  p->last_event =
+    p->chunked_handler.last_server_event = event;
+  bool done = p->chunked_handler.process_chunked_content();
+
+  // If we couldn't understand the encoding, return
+  //   an error
+  if (p->chunked_handler.state == ChunkedHandler::CHUNK_READ_ERROR) {
+    Debug("http_tunnel", "[%" PRId64 "] producer_handler_chunked [%s chunk decoding error]", sm->sm_id, p->name);
+    p->chunked_handler.truncation = true;
+    // FIX ME: we return EOS here since it will cause the
+    //  the client to be reenabled.  ERROR makes more
+    //  sense but no reenables follow
+    return VC_EVENT_EOS;
+  }
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+    if (done) {
+      return VC_EVENT_READ_COMPLETE;
+    }
+    break;
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+  case VC_EVENT_EOS:
+  case VC_EVENT_READ_COMPLETE:
+    if (!done) {
+      p->chunked_handler.truncation = true;
+    }
+    break;
+  }
+
+  return event;
+}
+
+//
+// bool HttpTunnel::producer_handler(int event, HttpTunnelProducer* p)
+//
+//   Handles events from producers.
+//
+//   If the event is interesting only to the tunnel, this
+//    handler takes all necessary actions and returns false
+//    If the event is interesting to the state_machine,
+//    it calls back the state machine and returns true
+//
+//
+bool HttpTunnel::producer_handler(int event, HttpTunnelProducer * p)
+{
+  HttpTunnelConsumer *c;
+  HttpProducerHandler jump_point;
+  bool sm_callback = false;
+
+  Debug("http_tunnel", "[%" PRId64 "] producer_handler [%s %s]", sm->sm_id, p->name, HttpDebugNames::get_event_name(event));
+
+  // Handle chunking/dechunking/chunked-passthrough if necessary.
+  if (p->do_chunking) {
+    event = producer_handler_dechunked(event, p);
+
+    // If we were in PRECOMPLETE when this function was called
+    // and we are doing chunking, then we just wrote the last
+    // chunk in the the function call above.  We are done with the
+    // tunnel.
+    if (event == HTTP_TUNNEL_EVENT_PRECOMPLETE) {
+      event = VC_EVENT_EOS;
+    }
+  } else if (p->do_dechunking || p->do_chunked_passthru) {
+    event = producer_handler_chunked(event, p);
+  } else {
+    p->last_event = event;
+  }
+
+  //YTS Team, yamsat Plugin
+  //Copy partial POST data to buffers. Check for the various parameters including
+  //the maximum configured post data size
+  if (sm->t_state.method == HTTP_WKSIDX_POST && sm->enable_redirection &&
+      (event == VC_EVENT_READ_READY || event == VC_EVENT_READ_COMPLETE) && (p->vc_type == HT_HTTP_CLIENT)) {
+    Debug("http_redirect", "[HttpTunnel::producer_handler] [%s %s]", p->name, HttpDebugNames::get_event_name(event));
+
+    c = p->consumer_list.head;
+    if ((postbuf->postdata_copy_buffer_start->read_avail() + postbuf->ua_buffer_reader->read_avail())
+        > HttpConfig::m_master.post_copy_size) {
+      Debug("http_redirect",
+            "[HttpTunnel::producer_handler] post exceeds buffer limit, buffer_avail=%" PRId64" reader_avail=%" PRId64" limit=%" PRId64"",
+            postbuf->postdata_copy_buffer_start->read_avail(), postbuf->ua_buffer_reader->read_avail(),
+            HttpConfig::m_master.post_copy_size);
+      deallocate_redirect_postdata_buffers();
+      sm->enable_redirection = false;
+    } else {
+      copy_partial_post_data();
+    }
+  }                             //end of added logic for partial copy of POST
+
+  Debug("http_redirect", "[HttpTunnel::producer_handler] enable_redirection: [%d %d %d] event: %d",
+        p->alive == true, sm->enable_redirection, (p->self_consumer && p->self_consumer->alive == true), event);
+  ink_assert(p->alive == true || event == HTTP_TUNNEL_EVENT_PRECOMPLETE || event == VC_EVENT_EOS ||
+             sm->enable_redirection || (p->self_consumer && p->self_consumer->alive == true));
+
+  switch (event) {
+  case VC_EVENT_READ_READY:
+    // Data read from producer, reenable consumers
+    for (c = p->consumer_list.head; c; c = c->link.next) {
+      if (c->alive) {
+        c->write_vio->reenable();
+      }
+    }
+    break;
+
+  case HTTP_TUNNEL_EVENT_PRECOMPLETE:
+    // the producer had finished before the tunnel
+    //  started so just call the state machine back
+    //  We don't need to reenable since the consumers
+    //  were just activated.  Likewise, we can't be
+    //  done because the consumer couldn't have
+    //  called us back yet
+    p->bytes_read = 0;
+    jump_point = p->vc_handler;
+    (sm->*jump_point) (event, p);
+    sm_callback = true;
+    break;
+
+  case VC_EVENT_READ_COMPLETE:
+  case VC_EVENT_EOS:
+    // The producer completed
+    p->alive = false;
+    if (p->read_vio) {
+      p->bytes_read = p->read_vio->ndone;
+    } else {
+      // If we are chunked, we can receive the whole document
+      //   along with the header without knowing it (due to
+      //   the message length being a property of the encoding)
+      //   In that case, we won't have done a do_io so there
+      //   will not be vio
+      p->bytes_read = 0;
+    }
+
+    // callback the SM to notify of completion
+    //  Note: we need to callback the SM before
+    //  reenabling the consumers as the reenable may
+    //  make the data visible to the consumer and
+    //  initiate async I/O operation.  The SM needs to
+    //  set how much I/O to do before async I/O is
+    //  initiated
+    jump_point = p->vc_handler;
+    (sm->*jump_point) (event, p);
+    sm_callback = true;
+
+    // Data read from producer, reenable consumers
+    for (c = p->consumer_list.head; c; c = c->link.next) {
+      if (c->alive) {
+        c->write_vio->reenable();
+      }
+    }
+    break;
+
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+  case HTTP_TUNNEL_EVENT_CONSUMER_DETACH:
+    p->alive = false;
+    p->bytes_read = p->read_vio->ndone;
+    // Interesting tunnel event, call SM
+    jump_point = p->vc_handler;
+    (sm->*jump_point) (event, p);
+    sm_callback = true;
+    break;
+
+  case VC_EVENT_WRITE_READY:
+  case VC_EVENT_WRITE_COMPLETE:
+  default:
+    // Producers should not get these events
+    ink_release_assert(0);
+    break;
+  }
+
+  return sm_callback;
+}
+
+bool
+HttpTunnel::consumer_reenable(HttpTunnelConsumer* c)
+{
+  HttpTunnelProducer* p = c->producer;
+  HttpTunnelProducer* srcp = p->flow_control_source;
+  if (p->alive
+#ifndef LAZY_BUF_ALLOC
+      && p->read_buffer->write_avail() > 0
+#endif
+    ) {
+    // Only do flow control if enabled and the producer is an external
+    // source.  Otherwise disable by making the backlog zero. Because
+    // the backlog short cuts quit when the value is equal (or
+    // greater) to the target, we use strict comparison only for
+    // checking low water, otherwise the flow control can stall out.
+    uint64_t backlog = (flow_state.enabled_p && p->is_source())
+      ? p->backlog(flow_state.high_water) : 0;
+
+    if (backlog >= flow_state.high_water) {
+      if (is_debug_tag_set("http_tunnel"))
+        Debug("http_tunnel", "Throttle   %p %" PRId64 " / %" PRId64, p, backlog, p->backlog());
+      p->throttle(); // p becomes srcp for future calls to this method
+    } else {
+      if (srcp && srcp->alive && c->is_sink()) {
+        // Check if backlog is below low water - note we need to check
+        // against the source producer, not necessarily the producer
+        // for this consumer. We don't have to recompute the backlog
+        // if they are the same because we know low water <= high
+        // water so the value is sufficiently accurate.
+        if (srcp != p)
+          backlog = srcp->backlog(flow_state.low_water);
+        if (backlog < flow_state.low_water) {
+          if (is_debug_tag_set("http_tunnel"))
+            Debug("http_tunnel", "Unthrottle %p %" PRId64 " / %" PRId64, p, backlog, p->backlog());
+          srcp->unthrottle();
+          srcp->read_vio->reenable();
+          // Kick source producer to get flow ... well, flowing.
+          this->producer_handler(VC_EVENT_READ_READY, srcp);
+        }
+      }
+      p->read_vio->reenable();
+    }
+  }
+  return p->is_throttled();
+}
+
+//
+// bool HttpTunnel::consumer_handler(int event, HttpTunnelConsumer* p)
+//
+//   Handles events from consumers.
+//
+//   If the event is interesting only to the tunnel, this
+//    handler takes all necessary actions and returns false
+//    If the event is interesting to the state_machine,
+//    it calls back the state machine and returns true
+//
+//
+bool HttpTunnel::consumer_handler(int event, HttpTunnelConsumer * c)
+{
+  bool sm_callback = false;
+  HttpConsumerHandler jump_point;
+  HttpTunnelProducer* p = c->producer;
+
+  Debug("http_tunnel", "[%" PRId64 "] consumer_handler [%s %s]", sm->sm_id, c->name, HttpDebugNames::get_event_name(event));
+
+  ink_assert(c->alive == true);
+
+  switch (event) {
+  case VC_EVENT_WRITE_READY:
+    this->consumer_reenable(c);
+    break;
+
+  case VC_EVENT_WRITE_COMPLETE:
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+  case VC_EVENT_ACTIVE_TIMEOUT:
+  case VC_EVENT_INACTIVITY_TIMEOUT:
+    ink_assert(c->alive);
+    ink_assert(c->buffer_reader);
+    c->alive = false;
+
+    c->bytes_written = c->write_vio ? c->write_vio->ndone : 0;
+
+    // Interesting tunnel event, call SM
+    jump_point = c->vc_handler;
+    (sm->*jump_point) (event, c);
+    sm_callback = true;
+
+    // Deallocate the reader after calling back the sm
+    //  because buffer problems are easier to debug
+    //  in the sm when the reader is still valid
+    c->buffer_reader->mbuf->dealloc_reader(c->buffer_reader);
+    c->buffer_reader = NULL;
+
+    // Since we removed a consumer, it may now be
+    //   possbile to put more stuff in the buffer
+    // Note: we reenable only after calling back
+    //    the SM since the reenabling has the side effect
+    //    updating the buffer state for the VConnection
+    //    that is being reenabled
+    if (p->alive && p->read_vio
+#ifndef LAZY_BUF_ALLOC
+        && p->read_buffer->write_avail() > 0
+#endif
+      ) {
+      if (p->is_throttled())
+        this->consumer_reenable(c);
+      else
+        p->read_vio->reenable();
+    }
+    // [amc] I don't think this happens but we'll leave a debug trap
+    // here just in case.
+    if (p->is_throttled())
+      Debug("http_tunnel", "Special event %s on %p with flow control on", HttpDebugNames::get_event_name(event), p);
+    break;
+
+  case VC_EVENT_READ_READY:
+  case VC_EVENT_READ_COMPLETE:
+  default:
+    // Consumers should not get these events
+    ink_release_assert(0);
+    break;
+  }
+
+  return sm_callback;
+}
+
+
+// void HttpTunnel::chain_abort_all(HttpTunnelProducer* p)
+//
+//    Abort the producer and everyone still alive
+//     downstream of the producer
+//
+void
+HttpTunnel::chain_abort_all(HttpTunnelProducer * p)
+{
+  HttpTunnelConsumer *c = p->consumer_list.head;
+
+  while (c) {
+    if (c->alive) {
+      c->alive = false;
+      c->write_vio = NULL;
+      c->vc->do_io_close(EHTTP_ERROR);
+      update_stats_after_abort(c->vc_type);
+    }
+
+    if (c->self_producer) {
+      chain_abort_all(c->self_producer);
+    }
+
+    c = c->link.next;
+  }
+
+  if (p->alive) {
+    p->alive = false;
+    p->bytes_read = p->read_vio->ndone;
+    if (p->self_consumer) {
+      p->self_consumer->alive = false;
+    }
+    p->read_vio = NULL;
+    p->vc->do_io_close(EHTTP_ERROR);
+    update_stats_after_abort(p->vc_type);
+  }
+}
+
+// void HttpTunnel::chain_finish_internal(HttpTunnelProducer* p)
+//
+//    Internal function for finishing all consumers.  Takes
+//       chain argument about where to finish just immediate
+//       consumer or all those downstream
+//
+void
+HttpTunnel::finish_all_internal(HttpTunnelProducer * p, bool chain)
+{
+  ink_assert(p->alive == false);
+  HttpTunnelConsumer *c = p->consumer_list.head;
+  int64_t total_bytes = 0;
+  TunnelChunkingAction_t action = p->chunking_action;
+
+  while (c) {
+    if (c->alive) {
+      if (c->vc_type == HT_CACHE_WRITE) {
+        switch (action) {
+        case TCA_CHUNK_CONTENT:
+        case TCA_PASSTHRU_DECHUNKED_CONTENT:
+          total_bytes = p->bytes_read + p->init_bytes_done;
+          break;
+        case TCA_DECHUNK_CONTENT:
+        case TCA_PASSTHRU_CHUNKED_CONTENT:
+          total_bytes = p->chunked_handler.skip_bytes + p->chunked_handler.dechunked_size;
+          break;
+        default:
+          break;
+        }
+      } else if (action == TCA_CHUNK_CONTENT) {
+        total_bytes = p->chunked_handler.skip_bytes + p->chunked_handler.chunked_size;
+      } else if (action == TCA_DECHUNK_CONTENT) {
+        total_bytes = p->chunked_handler.skip_bytes + p->chunked_handler.dechunked_size;
+      } else
+        total_bytes = p->bytes_read + p->init_bytes_done;
+
+      c->write_vio->nbytes = total_bytes - c->skip_bytes;
+      ink_assert(c->write_vio->nbytes >= 0);
+
+      if (c->write_vio->nbytes < 0) {
+        // TODO: Wtf, printf?
+        fprintf(stderr,
+                "[HttpTunnel::finish_all_internal] ERROR: Incorrect total_bytes - c->skip_bytes = %" PRId64 "\n",
+                (int64_t) (total_bytes - c->skip_bytes));
+      }
+
+      if (chain == true && c->self_producer) {
+        chain_finish_all(c->self_producer);
+      }
+      // The IO Core will not call us back if there
+      //   is nothing to do.  Check to see if there is
+      //   nothing to do and take the appripriate
+      //   action
+      if (c->write_vio->nbytes == c->write_vio->ndone) {
+        consumer_handler(VC_EVENT_WRITE_COMPLETE, c);
+      }
+    }
+
+    c = c->link.next;
+  }
+}
+
+// void HttpTunnel::chain_abort_cache_write(HttpProducer* p)
+//
+//    Terminates all cache writes.  Used to prevent truncated
+//     documents from being stored in the cache
+//
+void
+HttpTunnel::chain_abort_cache_write(HttpTunnelProducer * p)
+{
+  HttpTunnelConsumer *c = p->consumer_list.head;
+
+  while (c) {
+    if (c->alive) {
+      if (c->vc_type == HT_CACHE_WRITE) {
+        ink_assert(c->self_producer == NULL);
+        c->write_vio = NULL;
+        c->vc->do_io_close(EHTTP_ERROR);
+        c->alive = false;
+        HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+      } else if (c->self_producer) {
+        chain_abort_cache_write(c->self_producer);
+      }
+    }
+    c = c->link.next;
+  }
+}
+
+// void HttpTunnel::close_vc(HttpTunnelProducer* p)
+//
+//    Closes the vc associated with the producer and
+//      updates the state of the self_consumer
+//
+void
+HttpTunnel::close_vc(HttpTunnelProducer * p)
+{
+  ink_assert(p->alive == false);
+  HttpTunnelConsumer *c = p->self_consumer;
+
+  if (c && c->alive) {
+    c->alive = false;
+    if (c->write_vio) {
+      c->bytes_written = c->write_vio->ndone;
+    }
+  }
+
+  p->vc->do_io_close();
+}
+
+// void HttpTunnel::close_vc(HttpTunnelConsumer* c)
+//
+//    Closes the vc associated with the consumer and
+//      updates the state of the self_producer
+//
+void
+HttpTunnel::close_vc(HttpTunnelConsumer * c)
+{
+  ink_assert(c->alive == false);
+  HttpTunnelProducer *p = c->self_producer;
+
+  if (p && p->alive) {
+    p->alive = false;
+    if (p->read_vio) {
+      p->bytes_read = p->read_vio->ndone;
+    }
+  }
+
+  c->vc->do_io_close();
+}
+
+// int HttpTunnel::main_handler(int event, void* data)
+//
+//   Main handler for the tunnel.  Vectors events
+//   based on whether they are from consumers or
+//   producers
+//
+int
+HttpTunnel::main_handler(int event, void *data)
+{
+  HttpTunnelProducer *p = NULL;
+  HttpTunnelConsumer *c = NULL;
+  bool sm_callback = false;
+
+  ink_assert(sm->magic == HTTP_SM_MAGIC_ALIVE);
+
+  // Find the appropriate entry
+  if ((p = get_producer((VIO *) data)) != 0) {
+    sm_callback = producer_handler(event, p);
+  } else {
+    if ((c = get_consumer((VIO *) data)) != 0) {
+      ink_assert(c->write_vio == (VIO *) data);
+      sm_callback = consumer_handler(event, c);
+    } else {
+      internal_error();         // do nothing
+    }
+  }
+
+  // We called a vc handler, the tunnel might be
+  //  finished.  Check to see if there are any remaining
+  //  VConnections alive.  If not, notifiy the state machine
+  //
+  if (sm_callback && !is_tunnel_alive()) {
+    active = false;
+    sm->handleEvent(HTTP_TUNNEL_EVENT_DONE, this);
+    return EVENT_DONE;
+  }
+  return EVENT_CONT;
+}
+
+void
+HttpTunnel::update_stats_after_abort(HttpTunnelType_t t)
+{
+  switch (t) {
+  case HT_CACHE_READ:
+  case HT_CACHE_WRITE:
+    HTTP_DECREMENT_DYN_STAT(http_current_cache_connections_stat);
+    break;
+  default:
+    // Handled here:
+    // HT_HTTP_SERVER, HT_HTTP_CLIENT,
+    // HT_TRANSFORM, HT_STATIC
+    break;
+  };
+}
+
+void
+HttpTunnel::internal_error()
+{
+}
+
+
+//YTS Team, yamsat Plugin
+//Function to copy the partial Post data while tunnelling
+void
+HttpTunnel::copy_partial_post_data()
+{
+  postbuf->postdata_copy_buffer->write(postbuf->ua_buffer_reader);
+  Debug("http_redirect", "[HttpTunnel::copy_partial_post_data] wrote %" PRId64" bytes to buffers %" PRId64"",
+        postbuf->ua_buffer_reader->read_avail(), postbuf->postdata_copy_buffer_start->read_avail());
+  postbuf->ua_buffer_reader->consume(postbuf->ua_buffer_reader->read_avail());
+}
+
+//YTS Team, yamsat Plugin
+//Allocate a new buffer for static producers
+void
+HttpTunnel::allocate_redirect_postdata_producer_buffer()
+{
+  int64_t alloc_index = buffer_size_to_index(sm->t_state.hdr_info.request_content_length);
+
+  ink_release_assert(postbuf->postdata_producer_buffer == NULL);
+
+  postbuf->postdata_producer_buffer = new_MIOBuffer(alloc_index);
+  postbuf->postdata_producer_reader = postbuf->postdata_producer_buffer->alloc_reader();
+}
+
+//YTS Team, yamsat Plugin
+//Allocating the post data buffers
+void
+HttpTunnel::allocate_redirect_postdata_buffers(IOBufferReader * ua_reader)
+{
+  int64_t alloc_index = buffer_size_to_index(sm->t_state.hdr_info.request_content_length);
+
+  Debug("http_redirect", "[HttpTunnel::allocate_postdata_buffers]");
+
+  // TODO: This is uncool, shouldn't this use the class allocator or proxy allocator ?
+  // If fixed, obviously also fix the deallocator.
+  if (postbuf == NULL) {
+    postbuf = new PostDataBuffers();
+  }
+  postbuf->ua_buffer_reader = ua_reader;
+  postbuf->postdata_copy_buffer = new_MIOBuffer(alloc_index);
+  postbuf->postdata_copy_buffer_start = postbuf->postdata_copy_buffer->alloc_reader();
+  allocate_redirect_postdata_producer_buffer();
+}
+
+
+//YTS Team, yamsat Plugin
+//Deallocating the post data buffers
+void
+HttpTunnel::deallocate_redirect_postdata_buffers()
+{
+  Debug("http_redirect", "[HttpTunnel::deallocate_postdata_copy_buffers]");
+
+  if (postbuf != NULL) {
+    if (postbuf->postdata_producer_buffer != NULL) {
+      free_MIOBuffer(postbuf->postdata_producer_buffer);
+      postbuf->postdata_producer_buffer = NULL;
+      postbuf->postdata_producer_reader = NULL; //deallocated by the buffer
+    }
+    if (postbuf->postdata_copy_buffer != NULL) {
+      free_MIOBuffer(postbuf->postdata_copy_buffer);
+      postbuf->postdata_copy_buffer = NULL;
+      postbuf->postdata_copy_buffer_start = NULL;       //deallocated by the buffer
+    }
+    delete postbuf;
+    postbuf = NULL;
+  }
+}
diff --git a/proxy/http/HttpTunnel.h b/proxy/http/HttpTunnel.h
new file mode 100644
index 00000000..81fac504
--- /dev/null
+++ b/proxy/http/HttpTunnel.h
@@ -0,0 +1,578 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpTunnel.h
+
+   Description:
+
+
+****************************************************************************/
+
+#ifndef _HTTP_TUNNEL_H_
+#define _HTTP_TUNNEL_H_
+
+#include "libts.h"
+#include "P_EventSystem.h"
+
+// Get rid of any previous definition first... /leif
+#ifdef MAX_PRODUCERS
+#undef MAX_PRODUCERS
+#endif
+#ifdef MAX_CONSUMERS
+#undef MAX_CONSUMERS
+#endif
+#define MAX_PRODUCERS   2
+#define MAX_CONSUMERS   4
+
+#define HTTP_TUNNEL_EVENT_DONE             (HTTP_TUNNEL_EVENTS_START + 1)
+#define HTTP_TUNNEL_EVENT_PRECOMPLETE      (HTTP_TUNNEL_EVENTS_START + 2)
+#define HTTP_TUNNEL_EVENT_CONSUMER_DETACH  (HTTP_TUNNEL_EVENTS_START + 3)
+
+#define HTTP_TUNNEL_STATIC_PRODUCER  (VConnection*)!0
+
+//YTS Team, yamsat Plugin
+#define ALLOCATE_AND_WRITE_TO_BUF 1
+#define WRITE_TO_BUF 2
+
+struct HttpTunnelProducer;
+class HttpSM;
+class HttpPagesHandler;
+typedef int (HttpSM::*HttpSMHandler) (int event, void *data);
+
+struct HttpTunnelConsumer;
+struct HttpTunnelProducer;
+typedef int (HttpSM::*HttpProducerHandler) (int event, HttpTunnelProducer * p);
+typedef int (HttpSM::*HttpConsumerHandler) (int event, HttpTunnelConsumer * c);
+
+enum HttpTunnelType_t
+{
+  HT_HTTP_SERVER,
+  HT_HTTP_CLIENT,
+  HT_CACHE_READ,
+  HT_CACHE_WRITE,
+  HT_TRANSFORM,
+  HT_STATIC
+};
+
+enum TunnelChunkingAction_t
+{
+  TCA_CHUNK_CONTENT,
+  TCA_DECHUNK_CONTENT,
+  TCA_PASSTHRU_CHUNKED_CONTENT,
+  TCA_PASSTHRU_DECHUNKED_CONTENT
+};
+
+struct ChunkedHandler
+{
+  enum ChunkedState {
+    CHUNK_READ_CHUNK = 0,
+    CHUNK_READ_SIZE_START,
+    CHUNK_READ_SIZE,
+    CHUNK_READ_SIZE_CRLF,
+    CHUNK_READ_TRAILER_BLANK,
+    CHUNK_READ_TRAILER_CR,
+    CHUNK_READ_TRAILER_LINE,
+    CHUNK_READ_ERROR,
+    CHUNK_READ_DONE,
+    CHUNK_WRITE_CHUNK,
+    CHUNK_WRITE_DONE,
+    CHUNK_FLOW_CONTROL
+  };
+
+  static int const DEFAULT_MAX_CHUNK_SIZE = 4096;
+
+  enum Action {
+    ACTION_DOCHUNK = 0,
+    ACTION_DECHUNK,
+    ACTION_PASSTHRU,
+  };
+
+  Action action;
+
+  IOBufferReader *chunked_reader;
+  MIOBuffer *dechunked_buffer;
+  int64_t dechunked_size;
+
+  IOBufferReader *dechunked_reader;
+  MIOBuffer *chunked_buffer;
+  int64_t chunked_size;
+
+  bool truncation;
+  int64_t skip_bytes;
+
+  ChunkedState state;
+  int64_t cur_chunk_size;
+  int64_t bytes_left;
+  int last_server_event;
+
+  // Parsing Info
+  int running_sum;
+  int num_digits;
+
+  /// @name Output data.
+  //@{
+  /// The maximum chunk size.
+  /// This is the preferred size as well, used whenever possible.
+  int64_t max_chunk_size;
+  /// Caching members to avoid using printf on every chunk.
+  /// It holds the header for a maximal sized chunk which will cover
+  /// almost all output chunks.
+  char max_chunk_header[16];
+  int max_chunk_header_len;
+  //@}
+  ChunkedHandler();
+
+  void init(IOBufferReader *buffer_in, HttpTunnelProducer *p);
+  void init_by_action(IOBufferReader *buffer_in, Action action);
+  void clear();
+
+  /// Set the max chunk @a size.
+  /// If @a size is zero it is set to @c DEFAULT_MAX_CHUNK_SIZE.
+  void set_max_chunk_size(int64_t size);
+
+  // Returns true if complete, false otherwise
+  bool process_chunked_content();
+  bool generate_chunked_content();
+
+private:
+  void read_size();
+  void read_chunk();
+  void read_trailer();
+  int64_t transfer_bytes();
+};
+
+struct HttpTunnelConsumer
+{
+  HttpTunnelConsumer();
+
+  LINK(HttpTunnelConsumer, link);
+  HttpTunnelProducer *producer;
+  HttpTunnelProducer *self_producer;
+
+  HttpTunnelType_t vc_type;
+  VConnection *vc;
+  IOBufferReader *buffer_reader;
+  HttpConsumerHandler vc_handler;
+  VIO *write_vio;
+
+  int64_t skip_bytes;               // bytes to skip at beginning of stream
+  int64_t bytes_written;            // total bytes written to the vc
+  int handler_state;              // state used the handlers
+
+  bool alive;
+  bool write_success;
+  const char *name;
+
+  /** Check if this consumer is downstream from @a vc.
+      @return @c true if any producer in the tunnel eventually feeds
+      data to this consumer.
+  */
+  bool is_downstream_from(VConnection* vc);
+  /** Check if this is a sink (final data destination).
+      @return @c true if data exits the ATS process at this consumer.
+  */
+  bool is_sink() const;
+};
+
+struct HttpTunnelProducer
+{
+  HttpTunnelProducer();
+
+  DLL<HttpTunnelConsumer> consumer_list;
+  HttpTunnelConsumer *self_consumer;
+  VConnection *vc;
+  HttpProducerHandler vc_handler;
+  VIO *read_vio;
+  MIOBuffer *read_buffer;
+  IOBufferReader *buffer_start;
+  HttpTunnelType_t vc_type;
+
+  ChunkedHandler chunked_handler;
+  TunnelChunkingAction_t chunking_action;
+
+  bool do_chunking;
+  bool do_dechunking;
+  bool do_chunked_passthru;
+
+  int64_t init_bytes_done;          // bytes passed in buffer
+  int64_t nbytes;                   // total bytes (client's perspective)
+  int64_t ntodo;                    // what this vc needs to do
+  int64_t bytes_read;               // total bytes read from the vc
+  int handler_state;              // state used the handlers
+  int last_event;                   ///< Tracking for flow control restarts.
+
+  int num_consumers;
+
+  bool alive;
+  bool read_success;
+  /// Flag and pointer for active flow control throttling.
+  /// If this is set, it points at the source producer that is under flow control.
+  /// If @c NULL then data flow is not being throttled.
+  HttpTunnelProducer* flow_control_source;
+  const char *name;
+
+  /** Get the largest number of bytes any consumer has not consumed.
+      Use @a limit if you only need to check if the backlog is at least @a limit.
+      @return The actual backlog or a number at least @a limit.
+   */
+  uint64_t backlog(
+		   uint64_t limit = INTU64_MAX ///< More than this is irrelevant
+		   );
+  /// Check if producer is original (to ATS) source of data.
+  /// @return @c true if this producer is the source of bytes from outside ATS.
+  bool is_source() const;
+  /// Throttle the flow.
+  void throttle();
+  /// Unthrottle the flow.
+  void unthrottle();
+  /// Check throttled state.
+  bool is_throttled() const;
+
+  /** Set the flow control source producer for the flow.
+      This sets the value for this producer and all downstream producers.
+      @note This is the implementation for @c throttle and @c unthrottle.
+      @see throttle
+      @see unthrottle
+  */
+  void set_throttle_src(
+			HttpTunnelProducer* srcp ///< Source producer of flow.
+			);
+};
+
+class PostDataBuffers
+{
+public:
+  PostDataBuffers()
+    : postdata_producer_buffer(NULL), postdata_copy_buffer(NULL), postdata_producer_reader(NULL),
+      postdata_copy_buffer_start(NULL), ua_buffer_reader(NULL)
+  { Debug("http_redirect", "[PostDataBuffers::PostDataBuffers]");  }
+
+  MIOBuffer *postdata_producer_buffer;
+  MIOBuffer *postdata_copy_buffer;
+  IOBufferReader *postdata_producer_reader;
+  IOBufferReader *postdata_copy_buffer_start;
+  IOBufferReader *ua_buffer_reader;
+};
+
+class HttpTunnel:public Continuation
+{
+  friend class HttpPagesHandler;
+  friend class CoreUtils;
+
+  /** Data for implementing flow control across a tunnel.
+
+      The goal is to bound the amount of data buffered for a
+      transaction flowing through the tunnel to (roughly) between the
+      @a high_water and @a low_water water marks. Due to the chunky nater of data
+      flow this always approximate.
+  */
+  struct FlowControl {
+    // Default value for high and low water marks.
+    static uint64_t const DEFAULT_WATER_MARK = 1<<16;
+
+    uint64_t high_water; ///< Buffered data limit - throttle if more than this.
+    uint64_t low_water; ///< Unthrottle if less than this buffered.
+    bool enabled_p; ///< Flow control state (@c false means disabled).
+
+    /// Default constructor.
+    FlowControl();
+  };
+
+public:
+  HttpTunnel();
+
+  void init(HttpSM * sm_arg, ProxyMutex * amutex);
+  void reset();
+  void kill_tunnel();
+  bool is_tunnel_active() const { return active; }
+  bool is_tunnel_alive() const;
+  bool has_cache_writer() const;
+
+  // YTS Team, yamsat Plugin
+  void copy_partial_post_data();
+  void allocate_redirect_postdata_producer_buffer();
+  void allocate_redirect_postdata_buffers(IOBufferReader * ua_reader);
+  void deallocate_redirect_postdata_buffers();
+
+  HttpTunnelProducer *add_producer(VConnection * vc,
+                                   int64_t nbytes,
+                                   IOBufferReader * reader_start,
+                                   HttpProducerHandler sm_handler, HttpTunnelType_t vc_type, const char *name);
+
+  void set_producer_chunking_action(HttpTunnelProducer * p, int64_t skip_bytes, TunnelChunkingAction_t action);
+  /// Set the maximum (preferred) chunk @a size of chunked output for @a producer.
+  void set_producer_chunking_size(HttpTunnelProducer* producer, int64_t size);
+
+  HttpTunnelConsumer *add_consumer(VConnection * vc,
+                                   VConnection * producer,
+                                   HttpConsumerHandler sm_handler,
+                                   HttpTunnelType_t vc_type, const char *name, int64_t skip_bytes = 0);
+
+  int deallocate_buffers();
+  DLL<HttpTunnelConsumer> *get_consumers(VConnection * vc);
+  HttpTunnelProducer *get_producer(VConnection * vc);
+  HttpTunnelConsumer *get_consumer(VConnection * vc);
+  void tunnel_run(HttpTunnelProducer * p = NULL);
+
+  int main_handler(int event, void *data);
+  bool consumer_reenable(HttpTunnelConsumer* c);
+  bool consumer_handler(int event, HttpTunnelConsumer * c);
+  bool producer_handler(int event, HttpTunnelProducer * p);
+  int producer_handler_dechunked(int event, HttpTunnelProducer * p);
+  int producer_handler_chunked(int event, HttpTunnelProducer * p);
+  void local_finish_all(HttpTunnelProducer * p);
+  void chain_finish_all(HttpTunnelProducer * p);
+  void chain_abort_cache_write(HttpTunnelProducer * p);
+  void chain_abort_all(HttpTunnelProducer * p);
+  void abort_cache_write_finish_others(HttpTunnelProducer * p);
+  void append_message_to_producer_buffer(HttpTunnelProducer * p, const char *msg, int64_t msg_len);
+
+  /** Mark a producer and consumer as the same underlying object.
+
+      This is use to chain producer/consumer pairs together to
+      indicate the data flows through them sequentially. The primary
+      example is a transform which serves as a consumer on the server
+      side and a producer on the cache/client side.
+  */
+  void chain(
+	     HttpTunnelConsumer* c,  ///< Flow goes in here
+	     HttpTunnelProducer* p   ///< Flow comes back out here
+	     );
+
+  void close_vc(HttpTunnelProducer * p);
+  void close_vc(HttpTunnelConsumer * c);
+
+private:
+
+  void internal_error();
+  void finish_all_internal(HttpTunnelProducer * p, bool chain);
+  void update_stats_after_abort(HttpTunnelType_t t);
+  void producer_run(HttpTunnelProducer * p);
+
+  HttpTunnelProducer *get_producer(VIO * vio);
+  HttpTunnelConsumer *get_consumer(VIO * vio);
+
+  HttpTunnelProducer *alloc_producer();
+  HttpTunnelConsumer *alloc_consumer();
+
+  int num_producers;
+  int num_consumers;
+  HttpTunnelConsumer consumers[MAX_CONSUMERS];
+  HttpTunnelProducer producers[MAX_PRODUCERS];
+  HttpSM *sm;
+
+  bool active;
+
+  /// State data about flow control.
+  FlowControl flow_state;
+
+public:
+  PostDataBuffers * postbuf;
+};
+
+// void HttpTunnel::abort_cache_write_finish_others
+//
+//    Abort all downstream cache writes and finsish
+//      all other local consumers
+//
+inline void
+HttpTunnel::abort_cache_write_finish_others(HttpTunnelProducer * p)
+{
+  chain_abort_cache_write(p);
+  local_finish_all(p);
+}
+
+// void HttpTunnel::local_finish_all(HttpTunnelProducer* p)
+//
+//   After the producer has finished, causes direct consumers
+//      to finish their writes
+//
+inline void
+HttpTunnel::local_finish_all(HttpTunnelProducer * p)
+{
+  finish_all_internal(p, false);
+}
+
+// void HttpTunnel::chain_finish_all(HttpTunnelProducer* p)
+//
+//   After the producer has finished, cause everyone
+//    downstream in the tunnel to send everything
+//    that producer has placed in the buffer
+//
+inline void
+HttpTunnel::chain_finish_all(HttpTunnelProducer * p)
+{
+  finish_all_internal(p, true);
+}
+
+inline bool
+HttpTunnel::is_tunnel_alive() const
+{
+  bool tunnel_alive = false;
+
+  for (int i = 0; i < MAX_PRODUCERS; i++) {
+    if (producers[i].alive == true) {
+      tunnel_alive = true;
+      break;
+    }
+  }
+  if (!tunnel_alive) {
+    for (int i = 0; i < MAX_CONSUMERS; i++) {
+      if (consumers[i].alive == true) {
+        tunnel_alive = true;
+        break;
+      }
+    }
+
+  }
+
+  return tunnel_alive;
+}
+
+inline HttpTunnelProducer *
+HttpTunnel::get_producer(VConnection * vc)
+{
+  for (int i = 0; i < MAX_PRODUCERS; i++) {
+    if (producers[i].vc == vc) {
+      return producers + i;
+    }
+  }
+  return NULL;
+}
+
+inline HttpTunnelConsumer *
+HttpTunnel::get_consumer(VConnection * vc)
+{
+  for (int i = 0; i < MAX_CONSUMERS; i++) {
+    if (consumers[i].vc == vc) {
+      return consumers + i;
+    }
+  }
+  return NULL;
+}
+
+inline HttpTunnelProducer *
+HttpTunnel::get_producer(VIO * vio)
+{
+  for (int i = 0; i < MAX_PRODUCERS; i++) {
+    if (producers[i].read_vio == vio) {
+      return producers + i;
+    }
+  }
+  return NULL;
+}
+
+inline HttpTunnelConsumer *
+HttpTunnel::get_consumer(VIO * vio)
+{
+  for (int i = 0; i < MAX_CONSUMERS; i++) {
+    if (consumers[i].write_vio == vio) {
+      return consumers + i;
+    }
+  }
+  return NULL;
+}
+
+inline void
+HttpTunnel::append_message_to_producer_buffer(HttpTunnelProducer * p, const char *msg, int64_t msg_len)
+{
+  if (p == NULL || p->read_buffer == NULL)
+    return;
+
+  p->read_buffer->write(msg, msg_len);
+  p->nbytes += msg_len;
+  p->bytes_read += msg_len;
+}
+
+inline bool
+HttpTunnel::has_cache_writer() const
+{
+  for (int i = 0; i < MAX_CONSUMERS; i++) {
+    if (consumers[i].vc_type == HT_CACHE_WRITE && consumers[i].vc != NULL) {
+      return true;
+    }
+  }
+  return false;
+}
+
+inline bool
+HttpTunnelConsumer::is_downstream_from(VConnection *vc)
+{
+  HttpTunnelProducer* p = producer;
+  HttpTunnelConsumer* c;
+  while (p) {
+    if (p->vc == vc) return true;
+    // The producer / consumer chain can contain a cycle in the case
+    // of a blind tunnel so give up if we find ourself (the original
+    // consumer).
+    c = p->self_consumer;
+    p = (c && c != this) ? c->producer : 0;
+  }
+  return false;
+}
+
+inline bool
+HttpTunnelConsumer::is_sink() const
+{
+  return HT_HTTP_CLIENT == vc_type || HT_CACHE_WRITE == vc_type;
+}
+
+inline bool
+HttpTunnelProducer::is_source() const
+{
+  // If a producer is marked as a client, then it's part of a bidirectional tunnel
+  // and so is an actual source of data.
+  return HT_HTTP_SERVER == vc_type || HT_CACHE_READ == vc_type || HT_HTTP_CLIENT == vc_type;
+}
+
+inline bool
+HttpTunnelProducer::is_throttled() const
+{
+  return 0 != flow_control_source;
+}
+
+inline void
+HttpTunnelProducer::throttle()
+{
+  if (!this->is_throttled())
+    this->set_throttle_src(this);
+}
+
+inline void
+HttpTunnelProducer::unthrottle()
+{
+  if (this->is_throttled())
+    this->set_throttle_src(0);
+}
+
+inline
+HttpTunnel::FlowControl::FlowControl()
+	  : high_water(DEFAULT_WATER_MARK)
+	  , low_water(DEFAULT_WATER_MARK)
+	  , enabled_p(false)
+{
+}
+
+#endif
diff --git a/proxy/http/HttpUpdateSM.cc b/proxy/http/HttpUpdateSM.cc
new file mode 100644
index 00000000..a5b604e0
--- /dev/null
+++ b/proxy/http/HttpUpdateSM.cc
@@ -0,0 +1,232 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpSM_update.cc
+
+   Description:
+	An HttpSM sub class for support scheduled update functionality
+
+
+
+ ****************************************************************************/
+
+
+#include "HttpUpdateSM.h"
+#include "HttpDebugNames.h"
+
+ClassAllocator<HttpUpdateSM> httpUpdateSMAllocator("httpUpdateSMAllocator");
+
+#define STATE_ENTER(state_name, event, vio) { \
+        Debug("http", "[%" PRId64 "] [%s, %s]", sm_id, \
+        #state_name, HttpDebugNames::get_event_name(event)); }
+
+HttpUpdateSM::HttpUpdateSM():
+cb_occured(false), cb_cont(NULL), cb_action(), cb_event(HTTP_SCH_UPDATE_EVENT_ERROR)
+{
+}
+
+void
+HttpUpdateSM::destroy()
+{
+  cleanup();
+  cb_action = NULL;
+  httpUpdateSMAllocator.free(this);
+}
+
+Action *
+HttpUpdateSM::start_scheduled_update(Continuation * cont, HTTPHdr * request)
+{
+
+  // Use passed continuation's mutex for this state machine
+  this->mutex = cont->mutex;
+  MUTEX_LOCK(lock, this->mutex, this_ethread());
+
+  // Set up the Action
+  cb_cont = cont;
+  cb_action = cont;
+
+  start_sub_sm();
+
+  // Make a copy of the request we being asked to do
+  t_state.hdr_info.client_request.create(HTTP_TYPE_REQUEST);
+  t_state.hdr_info.client_request.copy(request);
+
+  // Fix ME: What should these be set to since there is not a
+  //   real client
+  ats_ip4_set(&t_state.client_info.addr, htonl(INADDR_LOOPBACK), 0);
+  t_state.backdoor_request = 0;
+  t_state.client_info.port_attribute = HttpProxyPort::TRANSPORT_DEFAULT;
+
+  t_state.req_flavor = HttpTransact::REQ_FLAVOR_SCHEDULED_UPDATE;
+
+  // We always deallocate this later so initialize it down
+  http_parser_init(&http_parser);
+
+  // We need to call state to add us to the http sm list
+  //   but since we can terminate the state machine on this
+  //   stack, do this by calling througth the main handler
+  //   so the sm will be properly terminated
+  this->default_handler = &HttpUpdateSM::state_add_to_list;
+  this->handleEvent(EVENT_NONE, NULL);
+
+  if (cb_occured == 0) {
+    return &cb_action;
+  } else {
+    return ACTION_RESULT_DONE;
+  }
+}
+
+void
+HttpUpdateSM::handle_api_return()
+{
+
+  switch (t_state.api_next_action) {
+  case HttpTransact::SM_ACTION_API_SM_START:
+    call_transact_and_set_next_state(&HttpTransact::ModifyRequest);
+    return;
+  case HttpTransact::SM_ACTION_API_SEND_RESPONSE_HDR:
+    // we have further processing to do
+    //  based on what t_state.next_action is
+    break;
+  default:
+    HttpSM::handle_api_return();
+    return;
+  }
+
+  switch (t_state.next_action) {
+  case HttpTransact::SM_ACTION_TRANSFORM_READ:
+    {
+      if (t_state.cache_info.transform_action == HttpTransact::CACHE_DO_WRITE) {
+        // Transform output cachable so initiate the transfer
+        //   to the cache
+        HttpTunnelProducer *p = setup_transfer_from_transform_to_cache_only();
+        tunnel.tunnel_run(p);
+      } else {
+        // We aren't caching the transformed response abort the
+        //  transform
+
+        Debug("http", "[%" PRId64 "] [HttpUpdateSM] aborting " "transform since result is not cached", sm_id);
+        HttpTunnelConsumer *c = tunnel.get_consumer(transform_info.vc);
+        ink_release_assert(c != NULL);
+
+        if (tunnel.is_tunnel_active()) {
+          default_handler = &HttpUpdateSM::tunnel_handler;
+          if (c->alive == true) {
+            // We're still streaming data to read
+            //  side of the transform so abort it
+            tunnel.handleEvent(VC_EVENT_ERROR, c->write_vio);
+          } else {
+            // The read side of the transform is done but
+            //  the tunnel is still going, presumably streaming
+            //  to the cache.  Just change the handler and
+            //  wait for the tunnel to complete
+            ink_assert(transform_info.entry->in_tunnel == false);
+          }
+        } else {
+          // tunnel is not active so caching the untransformed
+          //  copy is done - bail out
+          ink_assert(transform_info.entry->in_tunnel == false);
+          terminate_sm = true;
+        }
+      }
+      break;
+    }
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_WRITE:
+  case HttpTransact::SM_ACTION_SERVER_READ:
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_NOOP:
+  case HttpTransact::SM_ACTION_SEND_ERROR_CACHE_NOOP:
+  case HttpTransact::SM_ACTION_SERVE_FROM_CACHE:
+    {
+      cb_event = HTTP_SCH_UPDATE_EVENT_NOT_CACHED;
+      t_state.squid_codes.log_code = SQUID_LOG_TCP_MISS;
+      terminate_sm = true;
+      return;
+    }
+
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_DELETE:
+  case HttpTransact::SM_ACTION_INTERNAL_CACHE_UPDATE_HEADERS:
+    {
+      if (t_state.next_action == HttpTransact::SM_ACTION_INTERNAL_CACHE_DELETE) {
+        cb_event = HTTP_SCH_UPDATE_EVENT_DELETED;
+      } else {
+        cb_event = HTTP_SCH_UPDATE_EVENT_UPDATED;
+      }
+
+      perform_cache_write_action();
+      terminate_sm = true;
+      return;
+    }
+
+  default:
+    {
+      ink_release_assert(!"Should not get here");
+    }
+  }
+}
+
+void
+HttpUpdateSM::set_next_state()
+{
+  if (t_state.cache_info.action == HttpTransact::CACHE_DO_NO_ACTION ||
+      t_state.cache_info.action == HttpTransact::CACHE_DO_SERVE) {
+
+    if (t_state.next_action == HttpTransact::SM_ACTION_SERVE_FROM_CACHE) {
+      cb_event = HTTP_SCH_UPDATE_EVENT_NO_ACTION;
+      t_state.squid_codes.log_code = SQUID_LOG_TCP_HIT;
+    } else {
+      t_state.squid_codes.log_code = SQUID_LOG_TCP_MISS;
+    }
+
+    terminate_sm = true;
+    ink_assert(tunnel.is_tunnel_active() == false);
+    return;
+  }
+
+  HttpSM::set_next_state();
+}
+
+int
+HttpUpdateSM::kill_this_async_hook(int event, void * /* data ATS_UNUSED */)
+{
+  STATE_ENTER(&HttpUpdateSM::user_cb_handler, event, data);
+
+  MUTEX_TRY_LOCK(lock, cb_action.mutex, this_ethread());
+
+  if (!lock) {
+    default_handler = (HttpSMHandler) & HttpUpdateSM::kill_this_async_hook;
+    eventProcessor.schedule_in(this, HRTIME_MSECONDS(10), ET_CALL);
+    return EVENT_DONE;
+  }
+
+  if (!cb_action.cancelled) {
+    Debug("http", "[%" PRId64 "] [HttpUpdateSM] calling back user with event %s",
+          sm_id, HttpDebugNames::get_event_name(cb_event));
+    cb_cont->handleEvent(cb_event, NULL);
+  }
+
+  cb_occured = true;
+
+  return HttpSM::kill_this_async_hook(EVENT_NONE, NULL);
+}
diff --git a/proxy/http/HttpUpdateSM.h b/proxy/http/HttpUpdateSM.h
new file mode 100644
index 00000000..c9563f36
--- /dev/null
+++ b/proxy/http/HttpUpdateSM.h
@@ -0,0 +1,84 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+   HttpUpdateSM.h
+
+   Description:
+	An HttpSM sub class for support scheduled update functionality
+
+
+
+ ****************************************************************************/
+
+#ifndef _HTTP_SM_UPDATE_H_
+#define _HTTP_SM_UPDATE_H_
+
+#include "P_EventSystem.h"
+#include "HttpSM.h"
+
+#define HTTP_SCH_UPDATE_EVENT_WRITTEN  (HTTP_SCH_UPDATE_EVENTS_START + 1)
+#define HTTP_SCH_UPDATE_EVENT_UPDATED  (HTTP_SCH_UPDATE_EVENTS_START + 2)
+#define HTTP_SCH_UPDATE_EVENT_DELETED  (HTTP_SCH_UPDATE_EVENTS_START + 3)
+#define HTTP_SCH_UPDATE_EVENT_NOT_CACHED (HTTP_SCH_UPDATE_EVENTS_START + 4)
+#define HTTP_SCH_UPDATE_EVENT_ERROR      (HTTP_SCH_UPDATE_EVENTS_START + 5)
+#define HTTP_SCH_UPDATE_EVENT_NO_ACTION  (HTTP_SCH_UPDATE_EVENTS_START + 6)
+
+
+class HttpUpdateSM:public HttpSM
+{
+
+public:
+
+  HttpUpdateSM();
+
+  static HttpUpdateSM *allocate();
+  void destroy();
+
+  Action *start_scheduled_update(Continuation * cont, HTTPHdr * req);
+
+//  private:
+  bool cb_occured;
+  Continuation *cb_cont;
+  Action cb_action;
+  int cb_event;
+
+protected:
+  void handle_api_return();
+  void set_next_state();
+  int kill_this_async_hook(int event, void *data);
+
+};
+
+inline HttpUpdateSM *
+HttpUpdateSM::allocate()
+{
+  extern ClassAllocator<HttpUpdateSM> httpUpdateSMAllocator;
+  return httpUpdateSMAllocator.alloc();
+}
+
+// Regression/Testing Routing
+void init_http_update_test();
+
+#endif
diff --git a/proxy/http/HttpUpdateTester.cc b/proxy/http/HttpUpdateTester.cc
new file mode 100644
index 00000000..50f3e5b8
--- /dev/null
+++ b/proxy/http/HttpUpdateTester.cc
@@ -0,0 +1,126 @@
+/** @file
+
+	Tests http scheduled functionality by requesting URLs out of a file
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HttpUpdateSM.h"
+#include "HttpDebugNames.h"
+#include "Diags.h"
+#include "ink_platform.h"
+
+#define MAX_ACTIVE_REQUESTS 5
+#define MAX_TOTAL_REQUESTS 100
+
+class UpTest:public Continuation
+{
+public:
+  UpTest(FILE * f, ProxyMutex * amutex);
+  int main_handler(int event, void *data);
+private:
+  void make_requests();
+  int active_req;
+#ifdef GO_AWAY
+  int total_req;
+  FILE *file;
+#endif
+};
+
+UpTest::UpTest(FILE * /* f ATS_UNUSED */, ProxyMutex * amutex)
+  : Continuation(amutex), active_req(0)
+#ifdef GO_AWAY
+  , total_req(0), file(f)
+#endif
+{
+  SET_HANDLER(&UpTest::main_handler);
+}
+
+void
+UpTest::make_requests()
+{
+  ink_release_assert(0);
+  // HDR FIX ME
+#ifdef GO_AWAY
+  while (active_req < MAX_ACTIVE_REQUESTS && file != NULL && total_req < MAX_TOTAL_REQUESTS) {
+
+    char url_buf[2048];
+    char req_buf[4096];
+
+    if (!fgets(url_buf, 2047, file)) {
+      Note("[Http Update Tester] url file exhausted");
+      fclose(file);
+      file = NULL;
+      return;
+    }
+    url_buf[strlen(url_buf) - 1] = '\0';
+
+    Debug("http_sch", "Firing off request for %s", url_buf);
+
+    sprintf(req_buf, "GET %s HTTP/1.0\r\nCache-Control: max-age=0\r\n\r\n", url_buf);
+    const char *req = req_buf;
+
+    HTTPHdr test_req;
+    HTTPParser http_parser;
+    http_parser_init(&http_parser);
+    test_req.create();
+
+    test_req.parse_req(&http_parser, &req, req + strlen(req), false);
+    http_parser_clear(&http_parser);
+
+    HttpUpdateSM *current_reader = HttpUpdateSM::allocate();
+    current_reader->init();
+    Action *a = current_reader->start_scheduled_update(this, test_req);
+    (void) a;
+
+    active_req++;
+    total_req++;
+  }
+#endif
+}
+
+int
+UpTest::main_handler(int event, void * /* data ATS_UNUSED */)
+{
+  Debug("http_sch", "Received Event %s", HttpDebugNames::get_event_name(event));
+
+  if (event != EVENT_NONE && event != VC_EVENT_IMMEDIATE) {
+    active_req--;
+  }
+
+  make_requests();
+
+  return EVENT_DONE;
+
+}
+
+void
+init_http_update_test()
+{
+
+  FILE *f = fopen("urls", "r");
+
+  if (f == NULL) {
+    Warning("[Http Update Tester] could not open URL file");
+    return;
+  }
+
+  UpTest *u = new UpTest(f, new_ProxyMutex());
+  eventProcessor.schedule_imm(u);
+}
diff --git a/proxy/http/Makefile.am b/proxy/http/Makefile.am
new file mode 100644
index 00000000..8ff69857
--- /dev/null
+++ b/proxy/http/Makefile.am
@@ -0,0 +1,85 @@
+# Makefile.am for Http
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+SUBDIRS = remap
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/proxy/http/remap \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/proxy/spdy
+
+noinst_HEADERS = HttpProxyServerMain.h
+noinst_LIBRARIES = libhttp.a
+
+libhttp_a_SOURCES = \
+  HttpSessionAccept.cc \
+  HttpSessionAccept.h \
+  HttpBodyFactory.cc \
+  HttpBodyFactory.h \
+  HttpCacheSM.cc \
+  HttpCacheSM.h \
+  HttpClientSession.cc \
+  HttpClientSession.h \
+  HttpConfig.cc \
+  HttpConfig.h \
+  HttpConnectionCount.cc \
+  HttpConnectionCount.h \
+  HttpDebugNames.cc \
+  HttpDebugNames.h \
+  HttpPages.cc \
+  HttpPages.h \
+  HttpProxyServerMain.cc \
+  HttpProxyServerMain.h \
+  HttpSM.cc \
+  HttpSM.h \
+  HttpServerSession.cc \
+  HttpServerSession.h \
+  HttpSessionManager.cc \
+  HttpSessionManager.h \
+  HttpTransact.cc \
+  HttpTransact.h \
+  HttpTransactCache.cc \
+  HttpTransactCache.h \
+  HttpTransactHeaders.cc \
+  HttpTransactHeaders.h \
+  HttpTunnel.cc \
+  HttpTunnel.h \
+  HttpUpdateSM.cc \
+  HttpUpdateSM.h
+
+if BUILD_TESTS
+  libhttp_a_SOURCES += HttpUpdateTester.cc \
+    RegressionHttpTransact.cc
+endif
+
+#test_UNUSED_SOURCES = \
+#  TestHttpTransact.cc \
+#  TestUrl.cc \
+#  test_socket_close.cc \
+#  testheaders.cc
diff --git a/proxy/http/Makefile.in b/proxy/http/Makefile.in
new file mode 100644
index 00000000..f8288453
--- /dev/null
+++ b/proxy/http/Makefile.in
@@ -0,0 +1,1053 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for Http
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+
+VPATH = @srcdir@
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+	HttpBodyFactory.cc HttpBodyFactory.h HttpCacheSM.cc \
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+	HttpConfig.cc HttpConfig.h HttpConnectionCount.cc \
+	HttpConnectionCount.h HttpDebugNames.cc HttpDebugNames.h \
+	HttpPages.cc HttpPages.h HttpProxyServerMain.cc \
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+	HttpTransact.cc HttpTransact.h HttpTransactCache.cc \
+	HttpTransactCache.h HttpTransactHeaders.cc \
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+	HttpUpdateSM.cc HttpUpdateSM.h HttpUpdateTester.cc \
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+#     (which will cause the Makefiles to be regenerated when you run 'make');
+# (2) otherwise, pass the desired values on the 'make' command line.
+$(am__recursive_targets):
+	@fail=; \
+	if $(am__make_keepgoing); then \
+	  failcom='fail=yes'; \
+	else \
+	  failcom='exit 1'; \
+	fi; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-recursive
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-recursive
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-recursive
+all-am: Makefile $(LIBRARIES) $(HEADERS)
+installdirs: installdirs-recursive
+installdirs-am:
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: $(am__recursive_targets) install-am install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-am clean clean-generic clean-libtool \
+	clean-noinstLIBRARIES cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am
+
+
+#test_UNUSED_SOURCES = \
+#  TestHttpTransact.cc \
+#  TestUrl.cc \
+#  test_socket_close.cc \
+#  testheaders.cc
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/http/README.via b/proxy/http/README.via
new file mode 100644
index 00000000..c5c954fc
--- /dev/null
+++ b/proxy/http/README.via
@@ -0,0 +1,85 @@
+      [u<client-stuff> c<cache-lookup-stuff> s<server-stuff> f<cache-fill-stuff> p<proxy-stuff>] e<error-codes>
+     
+      client stuff
+         E    error in request
+         I    IMS
+         N    no-cache
+         C    cookie		
+         S    simple request (not conditional)
+     
+      cache lookup stuff
+         M    miss
+         A    in cache, not acceptable
+         S    in cache, stale
+         H    in cache, fresh
+     
+      server stuff
+         E    error in response
+         N    not-modified
+         S    served
+     
+      cache fill stuff
+         D    cached copy deleted
+         W    written into cache (new copy)
+         U    updated cache
+     
+      proxy stuff
+         N    not-modified
+         S    served
+         R    origin server revalidated
+     
+      error codes
+         N    no error
+         A    authorization failure
+         C    connection to server failed
+         D    dns failure
+         F    request forbidden
+         H    header syntax unacceptable
+         S    server related error
+         T    connection timed out
+     
+      For example:
+     
+      [u lH o  f  pS eN]     cache hit
+      [u lM oS fF pS eN]     cache miss
+      [uN l oS f  pS eN]     no-cache origin server fetch
+     
+     -------------------------------------------------------
+     
+      Then there are the detailed via codes which follow a ":"
+     
+      t<tunneling information>c<cache type><cache lookup result>i<icp conn info>p<parent proxy conn info>s<server conn info>
+     
+      tunneling information
+         F    tunneling due to a header field (such as presence of If-Range header)
+         M    tunneling due to a method (e.g. CONNECT)
+         O    tunneling because cache is turned off
+         U    tunneling because of url (url suggests dynamic content)
+         
+      cache type
+         C    cache
+         L    cluster (not used)
+         I    icp
+         
+      cache lookup result
+         N    conditional hit (client sent conditional, fresh in cache, returned 304)
+         H    cache hit
+	 I    conditional miss (client sent conditional, fresh in cache, returned 412)
+         M    cache miss (url not in cache)
+         S    cache hit, but expired
+         C    cache hit, but config forces revalidate
+         U    cache hit, but client forces revalidate (e.g. Pragma: no-cache)
+         D    cache hit, but method forces revalidated (e.g. not anonymous)
+         
+      icp conn info
+         S    connection opened successfully
+         F    connection open failed
+
+      pp conn info
+         S    connection opened successfully
+         F    connection open failed
+
+      server conn info
+         S    connection opened successfully
+         F    connection open failed
+     
diff --git a/proxy/http/RegressionHttpTransact.cc b/proxy/http/RegressionHttpTransact.cc
new file mode 100644
index 00000000..24249644
--- /dev/null
+++ b/proxy/http/RegressionHttpTransact.cc
@@ -0,0 +1,103 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "Regression.h"
+#include "HttpTransact.h"
+#include "HttpSM.h"
+
+void forceLinkRegressionHttpTransact()
+{
+}
+
+static void
+init_sm(HttpSM *sm)
+{
+
+  sm->init();
+  sm->t_state.hdr_info.client_request.create(HTTP_TYPE_REQUEST, NULL);
+
+}
+
+static void
+setup_client_request(HttpSM * sm, const char * scheme, const char * request)
+{
+  init_sm(sm);
+
+  MIOBuffer * read_buffer = new_MIOBuffer(HTTP_HEADER_BUFFER_SIZE_INDEX);
+  IOBufferReader * buffer_reader = read_buffer->alloc_reader();
+  read_buffer->write(request, strlen(request));
+
+  HTTPParser httpParser;
+  http_parser_init(&httpParser);
+  int bytes_used = 0;
+  sm->t_state.hdr_info.client_request.parse_req(&httpParser, buffer_reader, &bytes_used, true /* eos */);
+  sm->t_state.hdr_info.client_request.url_get()->scheme_set(scheme, strlen(scheme));
+  free_MIOBuffer(read_buffer);
+}
+
+/*
+pstatus return values
+REGRESSION_TEST_PASSED
+REGRESSION_TEST_INPROGRESS
+REGRESSION_TEST_FAILED
+REGRESSION_TEST_NOT_RUN
+ */
+REGRESSION_TEST(HttpTransact_is_request_valid)(RegressionTest *t, int /* level */, int *pstatus)
+{
+  HttpTransact transaction;
+  HttpSM sm;
+  *pstatus = REGRESSION_TEST_PASSED;
+
+  struct
+  {
+    const char *scheme;
+    const char *req;
+    bool result;
+  } requests[] = {
+    // missing host header
+    { "http", "GET / HTTP/1.1\r\n\r\n", false},
+    // good get request
+    { "http", "GET / HTTP/1.1\r\nHost: abc.com\r\n\r\n", true},
+    // content len < 0
+    { "http", "POST / HTTP/1.1\r\nHost: abc.com\r\nContent-Length: -1\r\n\r\n", false},
+    { "http", "PUSH / HTTP/1.1\r\nHost: abc.com\r\nContent-Length: -1\r\n\r\n", false},
+    { "http", "PUT / HTTP/1.1\r\nHost: abc.com\r\nContent-Length: -1\r\n\r\n", false},
+    // valid content len
+    { "http", "POST / HTTP/1.1\r\nHost: abc.com\r\nContent-Length: 10\r\n\r\n", true},
+    { "http", "PUSH / HTTP/1.1\r\nHost: abc.com\r\nContent-Length: 10\r\n\r\n", true},
+    { "http", "PUT / HTTP/1.1\r\nHost: abc.com\r\nContent-Length: 10\r\n\r\n", true},
+    // Content Length missing
+    { "http", "POST / HTTP/1.1\r\nHost: abc.com\r\n\r\n", false},
+    { "http", "PUSH / HTTP/1.1\r\nHost: abc.com\r\n\r\n", false},
+    { "http", "PUT / HTTP/1.1\r\nHost: abc.com\r\n\r\n", false},
+    { NULL, NULL, false}
+  };
+  for (int i = 0; requests[i].req; i++) {
+    setup_client_request(&sm, requests[i].scheme, requests[i].req);
+
+    if (requests[i].result != transaction.is_request_valid(&sm.t_state, &sm.t_state.hdr_info.client_request)) {
+      rprintf(t, "HttpTransact::is_request_valid - failed for request = '%s'.  Expected result was %s request\n", requests[i].req,(requests[i].result ? "valid" :"invalid") );
+      *pstatus = REGRESSION_TEST_FAILED;
+    }
+  }
+}
diff --git a/proxy/http/TestHttpTransact.cc b/proxy/http/TestHttpTransact.cc
new file mode 100644
index 00000000..a2e9681d
--- /dev/null
+++ b/proxy/http/TestHttpTransact.cc
@@ -0,0 +1,112 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "HttpNet.h"
+#include <iostream.h>
+#include "ink_assert.h"
+#include "DebugStream.h"
+#include "IOBuffer.h"
+#include "Main.h"
+#include "Event.h"
+#include "ProtectedQueue.h"
+#include "Cluster.h"
+#include "HttpConfig.h"
+#include "HttpTransact.h"
+
+HttpNetProcessor httpNetProcessor;
+HttpConfigParams httpConfigParams;
+DebugStream debug_out("debug.txt", 1, 1, "DebugStreamLevels.txt", "http.stops");
+
+
+
+
+
+typedef struct
+{
+  char *accept;
+  char *field;
+} AcceptPair;
+
+void
+test()
+{
+  float q;
+
+  ///// Accept /////
+
+  static AcceptPair a1[] = {
+    {"*", "text/html"},
+    {"image/gif, *; q=.9, text/*; q=.2", "text/html"},
+    {NULL, NULL}
+  };
+
+  fprintf(stderr, "\n*** Testing Accept matching ***\n");
+  for (int i = 0; a1[i].accept; i++) {
+    q = HttpTransact::CalcQualityOfAcceptMatch(a1[i].accept, a1[i].field);
+    fprintf(stderr, "Accept(\"%s\",\"%s\") ==> %g\n", a1[i].accept, a1[i].field, q);
+  }
+
+  ///// Accept-Charset /////
+
+  static AcceptPair a2[] = {
+    {"*", "us-ascii"},
+    {NULL, NULL}
+  };
+
+  fprintf(stderr, "\n*** Testing Accept-Charset matching ***\n");
+  for (int i = 0; a2[i].accept; i++) {
+    q = HttpTransact::CalcQualityOfAcceptCharsetMatch(a2[i].accept, a2[i].field);
+    fprintf(stderr, "Accept-Charset(\"%s\",\"%s\") ==> %g\n", a2[i].accept, a2[i].field, q);
+  }
+
+  ///// Accept-Encoding /////
+
+  static AcceptPair a3[] = {
+    {"*", "gzip"},
+    {NULL, NULL}
+  };
+
+  fprintf(stderr, "\n*** Testing Accept-Encoding matching ***\n");
+  for (int i = 0; a3[i].accept; i++) {
+    q = HttpTransact::CalcQualityOfAcceptEncodingMatch(a3[i].accept, a3[i].field);
+    fprintf(stderr, "Accept-Encoding(\"%s\",\"%s\") ==> %g\n", a3[i].accept, a3[i].field, q);
+  }
+
+  ///// Accept-Language /////
+
+  static AcceptPair a4[] = {
+    {"*", "en"},
+    {"*", ""},
+    {"fr, en", "en-ebonics"},
+    {"fr, en-ebonics", "en-ebonics"},
+    {"fr, *;q=.314, en-ebonics", "en-boston"},
+    {"fr, *;q=.314, en-ebonics", "en-ebonics-oakland"},
+    {NULL, NULL}
+  };
+
+  fprintf(stderr, "\n*** Testing Accept-Language matching ***\n");
+  for (int i = 0; a4[i].accept; i++) {
+    q = HttpTransact::CalcQualityOfAcceptLanguageMatch(a4[i].accept, a4[i].field);
+    fprintf(stderr, "Accept-Language(\"%s\",\"%s\") ==> %g\n", a4[i].accept, a4[i].field, q);
+  }
+}
diff --git a/proxy/http/TestUrl.cc b/proxy/http/TestUrl.cc
new file mode 100644
index 00000000..6b1c7a6a
--- /dev/null
+++ b/proxy/http/TestUrl.cc
@@ -0,0 +1,118 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "URL.h"
+#include <iostream.h>
+#include <fstream.h>
+
+URL *
+create_url(const char *url_string)
+{
+  char buf[4096];
+  int len = 0;
+  URL *url_p = new URL(url_string);
+  URL & url = *url_p;
+
+  cout << "scheme        : " << url.getScheme() << endl;
+  len = url.getUserName(buf, sizeof(buf));
+  buf[len] = '\0';
+  cout << "user name     : " << buf << endl;
+  cout << "UserNameExists: " << url.userNameExists() << endl;
+  cout << "UserNameEmpty : " << url.userNameEmpty() << endl;
+
+
+  len = url.getPassword(buf, sizeof(buf));
+  buf[len] = '\0';
+  cout << "password      : " << buf << endl;
+  cout << "PasswordExists: " << url.passwordExists() << endl;
+  cout << "PasswordEmpty : " << url.passwordEmpty() << endl;
+
+
+  len = url.getHost(buf, sizeof(buf));
+  buf[len] = '\0';
+  cout << "host          : " << buf << endl;
+  cout << "HostEmpty     : " << url.hostEmpty() << endl;
+
+  cout << "port          : " << url.getPort() << endl;
+  cout << "PortEmpty     : " << url.portEmpty() << endl;
+  cout << "DefaultPort   : " << url.defaultPort() << endl;
+
+  // get specifics for this scheme
+  switch (url.getScheme()) {
+  case URL_SCHEME_NONE:
+  case URL_SCHEME_HTTP:
+  case URL_SCHEME_HTTPS:
+    len = url.getHttpPath(buf, sizeof(buf));
+    buf[len] = '\0';
+    cout << "http path     : " << buf << endl;
+    len = url.getParams(buf, sizeof(buf));
+    buf[len] = '\0';
+    cout << "http params   : " << buf << endl;
+    len = url.getQuery(buf, sizeof(buf));
+    buf[len] = '\0';
+    cout << "http query    : " << buf << endl;
+    len = url.getFragment(buf, sizeof(buf));
+    buf[len] = '\0';
+    cout << "http fragment : " << buf << endl;
+    break;
+
+  default:
+    break;
+
+  }
+  cout << "real length   : " << strlen(url_string) << endl;
+  cout << "u-bound length: " << url.getUrlLengthUpperBound() << endl;
+  cout << endl;
+
+  int bl = url.dump(buf, sizeof(buf) - 1);
+  cout << buf << endl << endl;
+  cout << "bytes = " << bl << endl;
+
+  return (url_p);
+}
+
+void
+test_marshal(URL * url)
+{
+  char buf[8196];
+
+  int bl = url->marshal(buf, sizeof(buf) - 1);
+  cout << buf << endl << endl;
+  cout << "bytes = " << bl << endl;
+
+  // test unmarshal
+  URL new_url;
+  new_url.unmarshal(buf, bl);
+
+  int bl2 = new_url.marshal(buf, sizeof(buf) - 1);
+  cout << buf << endl << endl;
+  cout << "bytes = " << bl << endl;
+
+  return;
+}
+
+
+main()
+{
+  create_url("www.microsoft.com/isapi/redir.dll?TARGET=%2Foffice%2Fmigration%2F&nonie3home&homepage&&&&headline1&1006");
+}
diff --git a/proxy/http/remap/AclFiltering.cc b/proxy/http/remap/AclFiltering.cc
new file mode 100644
index 00000000..79d6954b
--- /dev/null
+++ b/proxy/http/remap/AclFiltering.cc
@@ -0,0 +1,192 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "AclFiltering.h"
+#include "Main.h"
+#include "Error.h"
+#include "HTTP.h"
+
+// ===============================================================================
+//                              acl_filter_rule
+// ===============================================================================
+
+void
+acl_filter_rule::reset(void)
+{
+  int i;
+  for (i = (argc = 0); i < ACL_FILTER_MAX_ARGV; i++) {
+    argv[i] = (char *)ats_free_null(argv[i]);
+  }
+  method_restriction_enabled = false;
+  for (i = 0; i < HTTP_WKSIDX_METHODS_CNT; i++) {
+    standard_method_lookup[i] = false;
+  }
+  nonstandard_methods.clear();
+  for (i = (src_ip_cnt = 0); i < ACL_FILTER_MAX_SRC_IP; i++) {
+    src_ip_array[i].reset();
+  }
+  src_ip_valid = 0;
+}
+
+acl_filter_rule::acl_filter_rule():next(NULL), filter_name_size(0), filter_name(NULL), allow_flag(1),
+src_ip_valid(0), active_queue_flag(0), argc(0)
+{
+  standard_method_lookup.resize(HTTP_WKSIDX_METHODS_CNT);
+  ink_zero(argv);
+  reset();
+}
+
+acl_filter_rule::~acl_filter_rule()
+{
+  reset();
+  name();
+}
+
+int
+acl_filter_rule::add_argv(int _argc, char *_argv[])
+{
+  int real_cnt = 0;
+  if (likely(_argv)) {
+    for (int i = 0; i < _argc && argc < ACL_FILTER_MAX_ARGV; i++) {
+      if (likely(_argv[i] && (argv[argc] = ats_strdup(_argv[i])) != NULL)) {
+        real_cnt++;
+        argc++;
+      }
+    }
+  }
+  return real_cnt;
+}
+
+int
+acl_filter_rule::name(const char *_name)
+{
+  filter_name_size = 0;
+  filter_name = (char *)ats_free_null(filter_name);
+  if (_name && _name[0] && (filter_name = ats_strdup(_name)) != NULL) {
+    filter_name_size = strlen(filter_name);
+  }
+  return filter_name_size;
+}
+
+void
+acl_filter_rule::print(void)
+{
+  int i;
+  printf("-----------------------------------------------------------------------------------------\n");
+  printf("Filter \"%s\" status: allow_flag=%d, src_ip_valid=%d, active_queue_flag=%d\n",
+         filter_name ? filter_name : "<NONAME>", (int) allow_flag,
+         (int) src_ip_valid, (int) active_queue_flag);
+  printf("standard methods=");
+  for (i = 0; i < HTTP_WKSIDX_METHODS_CNT; i++) {
+    if (standard_method_lookup[i]) {
+      printf("0x%x ", HTTP_WKSIDX_CONNECT + i);
+    }
+  }
+  printf("nonstandard methods=");
+  for (MethodMap::iterator iter = nonstandard_methods.begin(), end = nonstandard_methods.end(); iter != end; ++iter) {
+    printf("%s ", iter->c_str());
+  }
+  printf("\n");
+  printf("src_ip_cnt=%d\n", src_ip_cnt);
+  for (i = 0; i < src_ip_cnt; i++) {
+    ip_text_buffer b1, b2;
+    printf("%s - %s"
+      , ats_ip_ntop(&src_ip_array[i].start.sa, b1, sizeof(b1))
+      , ats_ip_ntop(&src_ip_array[i].end.sa, b2, sizeof(b2))
+    );
+  }
+  for (i = 0; i < argc; i++) {
+    printf("argv[%d] = \"%s\"\n", i, argv[i]);
+  }
+}
+
+acl_filter_rule *
+acl_filter_rule::find_byname(acl_filter_rule *list, const char *_name)
+{
+  int _name_size = 0;
+  acl_filter_rule *rp = 0;
+  if (likely(list && _name && (_name_size = strlen(_name)) > 0)) {
+    for (rp = list; rp; rp = rp->next) {
+      if (rp->filter_name_size == _name_size && !strcasecmp(rp->filter_name, _name))
+        break;
+    }
+  }
+  return rp;
+}
+
+void
+acl_filter_rule::delete_byname(acl_filter_rule **rpp, const char *_name)
+{
+  int _name_size = 0;
+  acl_filter_rule *rp;
+  if (likely(rpp && _name && (_name_size = strlen(_name)) > 0)) {
+    for (; (rp = *rpp) != NULL; rpp = &rp->next) {
+      if (rp->filter_name_size == _name_size && !strcasecmp(rp->filter_name, _name)) {
+        *rpp = rp->next;
+        delete rp;
+        break;
+      }
+    }
+  }
+}
+
+void
+acl_filter_rule::requeue_in_active_list(acl_filter_rule **list, acl_filter_rule *rp)
+{
+  if (likely(list && rp)) {
+    if (rp->active_queue_flag == 0) {
+      acl_filter_rule *r, **rpp;
+      for (rpp = list; ((r = *rpp) != NULL); rpp = &(r->next)) {
+        if (r == rp) {
+          *rpp = r->next;
+          break;
+        }
+      }
+      for (rpp = list; ((r = *rpp) != NULL); rpp = &(r->next)) {
+        if (r->active_queue_flag == 0)
+          break;
+      }
+      (*rpp = rp)->next = r;
+      rp->active_queue_flag = 1;
+    }
+  }
+}
+
+void
+acl_filter_rule::requeue_in_passive_list(acl_filter_rule **list, acl_filter_rule *rp)
+{
+  if (likely(list && rp)) {
+    if (rp->active_queue_flag) {
+      acl_filter_rule **rpp;
+      for (rpp = list; *rpp; rpp = &((*rpp)->next)) {
+        if (*rpp == rp) {
+          *rpp = rp->next;
+          break;
+        }
+      }
+      for (rpp = list; *rpp; rpp = &((*rpp)->next));
+      (*rpp = rp)->next = NULL;
+      rp->active_queue_flag = 0;
+    }
+  }
+}
diff --git a/proxy/http/remap/AclFiltering.h b/proxy/http/remap/AclFiltering.h
new file mode 100644
index 00000000..a8d187a7
--- /dev/null
+++ b/proxy/http/remap/AclFiltering.h
@@ -0,0 +1,99 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _ACL_FILTERING_H_
+#define _ACL_FILTERING_H_
+
+#include "Main.h"
+//#include "YAddr.h"
+
+#include <string>
+#include <set>
+#include <vector>
+
+// ===============================================================================
+// ACL like filtering defs (per one remap rule)
+
+static int const ACL_FILTER_MAX_SRC_IP = 128;
+static int const ACL_FILTER_MAX_ARGV = 512;
+
+struct src_ip_info_t {
+  IpEndpoint start; ///< Minimum value in range.
+  IpEndpoint end; ///< Maximum value in range.
+  bool invert;      ///< Should we "invert" the meaning of this IP range ("not in range")
+
+  void reset() {
+    ink_zero(start);
+    ink_zero(end);
+    invert = false;
+  }
+
+  /// @return @c true if @a ip is inside @a this range.
+  bool contains(IpEndpoint const& ip) {
+    return ats_ip_addr_cmp(&start, &ip) <= 0 && ats_ip_addr_cmp(&ip, &end) <= 0;
+  }
+};
+
+/**
+ *
+**/
+class acl_filter_rule
+{
+private:
+  void reset(void);
+
+public:
+  acl_filter_rule *next;
+  int filter_name_size;         // size of optional filter name
+  char *filter_name;            // optional filter name
+  unsigned int allow_flag:1,    // action allow deny
+    src_ip_valid:1,             // src_ip range valid
+    active_queue_flag:1;        // filter is in active state (used by .useflt directive)
+
+  // we need arguments as string array for directive processing
+  int argc;                     // argument counter (only for filter defs)
+  char *argv[ACL_FILTER_MAX_ARGV];      // argument strings (only for filter defs)
+
+  // methods
+  bool method_restriction_enabled;
+  std::vector<bool> standard_method_lookup;
+
+  typedef std::set<std::string> MethodMap;
+  MethodMap nonstandard_methods;
+
+  // src_ip
+  int src_ip_cnt;               // how many valid src_ip rules we have
+  src_ip_info_t src_ip_array[ACL_FILTER_MAX_SRC_IP];
+  acl_filter_rule();
+  ~acl_filter_rule();
+  int name(const char *_name = NULL);
+  int add_argv(int _argc, char *_argv[]);
+  void print(void);
+
+  static acl_filter_rule *find_byname(acl_filter_rule *list, const char *name);
+  static void delete_byname(acl_filter_rule **list, const char *name);
+  static void requeue_in_active_list(acl_filter_rule **list, acl_filter_rule *rp);
+  static void requeue_in_passive_list(acl_filter_rule **list, acl_filter_rule *rp);
+};
+
+#endif
diff --git a/proxy/http/remap/Makefile.am b/proxy/http/remap/Makefile.am
new file mode 100644
index 00000000..3fb9f4ca
--- /dev/null
+++ b/proxy/http/remap/Makefile.am
@@ -0,0 +1,51 @@
+# Makefile.am for Http
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/proxy/http
+
+noinst_LIBRARIES = libhttp_remap.a
+
+libhttp_remap_a_SOURCES = \
+  AclFiltering.cc \
+  AclFiltering.h \
+  RemapConfig.cc \
+  RemapConfig.h \
+  RemapPluginInfo.cc \
+  RemapPluginInfo.h \
+  RemapPlugins.cc \
+  RemapPlugins.h \
+  RemapProcessor.cc \
+  RemapProcessor.h \
+  UrlMapping.cc \
+  UrlMapping.h \
+  UrlMappingPathIndex.cc \
+  UrlMappingPathIndex.h \
+  UrlRewrite.cc \
+  UrlRewrite.h
diff --git a/proxy/http/remap/Makefile.in b/proxy/http/remap/Makefile.in
new file mode 100644
index 00000000..e00e4202
--- /dev/null
+++ b/proxy/http/remap/Makefile.in
@@ -0,0 +1,898 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for Http
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgincludedir = $(includedir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = proxy/http/remap
+DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
+	$(top_srcdir)/build/aux/depcomp
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/build/ax_boost_base.m4 \
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+	$(top_srcdir)/build/ax_compiler_vendor.m4 \
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+	$(top_srcdir)/build/ax_perl_modules.m4 \
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+	$(top_srcdir)/build/common.m4 $(top_srcdir)/build/crypto.m4 \
+	$(top_srcdir)/build/jemalloc.m4 $(top_srcdir)/build/libtool.m4 \
+	$(top_srcdir)/build/ltoptions.m4 \
+	$(top_srcdir)/build/ltsugar.m4 \
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+	$(top_srcdir)/build/lt~obsolete.m4 $(top_srcdir)/build/lzma.m4 \
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+	$(top_srcdir)/build/pkg.m4 $(top_srcdir)/build/tcl.m4 \
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+	$(top_srcdir)/build/zlib.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/lib/ts/ink_autoconf.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+LIBRARIES = $(noinst_LIBRARIES)
+ARFLAGS = cru
+AM_V_AR = $(am__v_AR_@AM_V@)
+am__v_AR_ = $(am__v_AR_@AM_DEFAULT_V@)
+am__v_AR_0 = @echo "  AR      " $@;
+am__v_AR_1 = 
+libhttp_remap_a_AR = $(AR) $(ARFLAGS)
+libhttp_remap_a_LIBADD =
+am_libhttp_remap_a_OBJECTS = AclFiltering.$(OBJEXT) \
+	RemapConfig.$(OBJEXT) RemapPluginInfo.$(OBJEXT) \
+	RemapPlugins.$(OBJEXT) RemapProcessor.$(OBJEXT) \
+	UrlMapping.$(OBJEXT) UrlMappingPathIndex.$(OBJEXT) \
+	UrlRewrite.$(OBJEXT)
+libhttp_remap_a_OBJECTS = $(am_libhttp_remap_a_OBJECTS)
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
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+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
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+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
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+depcomp = $(SHELL) $(top_srcdir)/build/aux/depcomp
+am__depfiles_maybe = depfiles
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
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+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
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+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
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+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
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+mostlyclean: mostlyclean-am
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+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
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+pdf: pdf-am
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+.MAKE: install-am install-strip
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+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
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+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/http/remap/RemapConfig.cc b/proxy/http/remap/RemapConfig.cc
new file mode 100644
index 00000000..70fdbb7b
--- /dev/null
+++ b/proxy/http/remap/RemapConfig.cc
@@ -0,0 +1,1262 @@
+/** @file
+ *
+ *  Remap configuration file parsing.
+ *
+ *  @section license License
+ *
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "RemapConfig.h"
+#include "UrlRewrite.h"
+#include "ReverseProxy.h"
+#include "I_Layout.h"
+#include "HTTP.h"
+#include "libts.h"
+#include "ink_cap.h"
+
+#define modulePrefix "[ReverseProxy]"
+
+static bool remap_parse_config_bti(const char * path, BUILD_TABLE_INFO * bti);
+
+/**
+  Returns the length of the URL.
+
+  Will replace the terminator with a '/' if this is a full URL and
+  there are no '/' in it after the the host.  This ensures that class
+  URL parses the URL correctly.
+
+*/
+static int
+UrlWhack(char *toWhack, int *origLength)
+{
+  int length = strlen(toWhack);
+  char *tmp;
+  *origLength = length;
+
+  // Check to see if this a full URL
+  tmp = strstr(toWhack, "://");
+  if (tmp != NULL) {
+    if (strchr(tmp + 3, '/') == NULL) {
+      toWhack[length] = '/';
+      length++;
+    }
+  }
+  return length;
+}
+
+/**
+  Cleanup *char[] array - each item in array must be allocated via
+  ats_malloc or similar "x..." function.
+
+*/
+static void
+clear_xstr_array(char *v[], size_t vsize)
+{
+  for (unsigned i = 0; i < vsize; i++) {
+    v[i] = (char *)ats_free_null(v[i]);
+  }
+}
+
+BUILD_TABLE_INFO::BUILD_TABLE_INFO()
+  : remap_optflg(0), paramc(0), argc(0), rules_list(NULL), rewrite(NULL)
+{
+  memset(this->paramv, 0, sizeof(this->paramv));
+  memset(this->argv, 0, sizeof(this->argv));
+}
+
+BUILD_TABLE_INFO::~BUILD_TABLE_INFO()
+{
+  this->reset();
+}
+
+void
+BUILD_TABLE_INFO::reset()
+{
+  this->paramc = this->argc = 0;
+  clear_xstr_array(this->paramv, sizeof(this->paramv) / sizeof(char *));
+  clear_xstr_array(this->argv, sizeof(this->argv) / sizeof(char *));
+}
+
+static const char *
+process_filter_opt(url_mapping * mp, const BUILD_TABLE_INFO * bti, char * errStrBuf, int errStrBufSize)
+{
+  acl_filter_rule *rp, **rpp;
+  const char *errStr = NULL;
+
+  if (unlikely(!mp || !bti || !errStrBuf || errStrBufSize <= 0)) {
+    Debug("url_rewrite", "[process_filter_opt] Invalid argument(s)");
+    return (const char *) "[process_filter_opt] Invalid argument(s)";
+  }
+  for (rp = bti->rules_list; rp; rp = rp->next) {
+    if (rp->active_queue_flag) {
+      Debug("url_rewrite", "[process_filter_opt] Add active main filter \"%s\" (argc=%d)",
+            rp->filter_name ? rp->filter_name : "<NULL>", rp->argc);
+      for (rpp = &mp->filter; *rpp; rpp = &((*rpp)->next));
+      if ((errStr = remap_validate_filter_args(rpp, (const char **)rp->argv, rp->argc, errStrBuf, errStrBufSize)) != NULL)
+        break;
+    }
+  }
+  if (!errStr && (bti->remap_optflg & REMAP_OPTFLG_ALL_FILTERS) != 0) {
+    Debug("url_rewrite", "[process_filter_opt] Add per remap filter");
+    for (rpp = &mp->filter; *rpp; rpp = &((*rpp)->next));
+    errStr = remap_validate_filter_args(rpp, (const char **)bti->argv, bti->argc, errStrBuf, errStrBufSize);
+  }
+  return errStr;
+}
+
+static bool
+is_inkeylist(const char * key, ...)
+{
+  va_list ap;
+
+  if (unlikely(key == NULL || key[0] == '\0')) {
+    return false;
+  }
+
+  va_start(ap, key);
+
+  const char *str = va_arg(ap, const char *);
+  for (unsigned idx = 1; str; idx++) {
+    if (!strcasecmp(key, str)) {
+      va_end(ap);
+      return true;
+    }
+
+    str = va_arg(ap, const char *);
+  }
+
+  va_end(ap);
+  return false;
+}
+
+static const char *
+parse_define_directive(const char * directive, BUILD_TABLE_INFO * bti, char * errbuf, size_t errbufsize)
+{
+  bool flg;
+  acl_filter_rule * rp;
+  acl_filter_rule ** rpp;
+  const char * cstr = NULL;
+
+  if (bti->paramc < 2) {
+    snprintf(errbuf, errbufsize, "Directive \"%s\" must have name argument", directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+  if (bti->argc < 1) {
+    snprintf(errbuf, errbufsize, "Directive \"%s\" must have filter parameter(s)", directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+
+  flg = ((rp = acl_filter_rule::find_byname(bti->rules_list, (const char *) bti->paramv[1])) == NULL) ? true : false;
+  // coverity[alloc_arg]
+  if ((cstr = remap_validate_filter_args(&rp, (const char **)bti->argv, bti->argc, errbuf, errbufsize)) == NULL && rp) {
+    if (flg) {                  // new filter - add to list
+      Debug("url_rewrite", "[parse_directive] new rule \"%s\" was created", bti->paramv[1]);
+      for (rpp = &bti->rules_list; *rpp; rpp = &((*rpp)->next));
+      (*rpp = rp)->name(bti->paramv[1]);
+    }
+    Debug("url_rewrite", "[parse_directive] %d argument(s) were added to rule \"%s\"", bti->argc, bti->paramv[1]);
+    rp->add_argv(bti->argc, bti->argv);       // store string arguments for future processing
+  }
+
+  return cstr;
+}
+
+static const char *
+parse_delete_directive(const char * directive, BUILD_TABLE_INFO * bti, char * errbuf, size_t errbufsize)
+{
+  if (bti->paramc < 2) {
+    snprintf(errbuf, errbufsize, "Directive \"%s\" must have name argument", directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+
+  acl_filter_rule::delete_byname(&bti->rules_list, (const char *) bti->paramv[1]);
+  return NULL;
+}
+
+static const char *
+parse_activate_directive(const char * directive, BUILD_TABLE_INFO * bti, char * errbuf, size_t errbufsize)
+{
+  acl_filter_rule * rp;
+
+  if (bti->paramc < 2) {
+    snprintf(errbuf, errbufsize, "Directive \"%s\" must have name argument", directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+
+  if ((rp = acl_filter_rule::find_byname(bti->rules_list, (const char *) bti->paramv[1])) == NULL) {
+    snprintf(errbuf, errbufsize, "Undefined filter \"%s\" in directive \"%s\"", bti->paramv[1], directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+
+  acl_filter_rule::requeue_in_active_list(&bti->rules_list, rp);
+  return NULL;
+}
+
+static const char *
+parse_deactivate_directive(const char * directive, BUILD_TABLE_INFO * bti, char * errbuf, size_t errbufsize)
+{
+  acl_filter_rule * rp;
+
+  if (bti->paramc < 2) {
+    snprintf(errbuf, errbufsize, "Directive \"%s\" must have name argument", directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+
+  if ((rp = acl_filter_rule::find_byname(bti->rules_list, (const char *) bti->paramv[1])) == NULL) {
+    snprintf(errbuf, errbufsize, "Undefined filter \"%s\" in directive \"%s\"", bti->paramv[1], directive);
+    Debug("url_rewrite", "[parse_directive] %s", errbuf);
+    return (const char *) errbuf;
+  }
+
+  acl_filter_rule::requeue_in_passive_list(&bti->rules_list, rp);
+  return NULL;
+}
+
+static const char *
+parse_include_directive(const char * directive, BUILD_TABLE_INFO * bti, char * errbuf, size_t errbufsize)
+{
+
+  if (bti->paramc < 2) {
+    snprintf(errbuf, errbufsize, "Directive \"%s\" must have a path argument", directive);
+    Debug("url_rewrite", "[%s] %s", __func__, errbuf);
+    return (const char *) errbuf;
+  }
+
+  for (unsigned i = 1; i < (unsigned) bti->paramc; ++i) {
+    // We need to create a new bti so that we don't clobber any state in the parent parse, but we want
+    // to keep the ACL rules from the parent because ACLs must be global across the full set of config
+    // files.
+    BUILD_TABLE_INFO  nbti;
+    xptr<char>        path;
+    bool              success;
+
+    // The included path is relative to SYSCONFDIR, just like remap.config is.
+    path = Layout::relative_to(Layout::get()->sysconfdir, bti->paramv[i]);
+
+    // XXX including directories is not supported (yet!).
+    if (ink_file_is_directory(path)) {
+      snprintf(errbuf, errbufsize, "included path %s is a directory", bti->paramv[i]);
+      return (const char *)errbuf;
+    }
+
+    nbti.rules_list = bti->rules_list;
+    nbti.rewrite = bti->rewrite;
+
+    // XXX at this point, we need to register the included file(s) with the management subsystem
+    // so that we can correctly reload them when they change. Otherwise, the operator will have to
+    // touch remap.config before reloading the configuration.
+
+    Debug("url_rewrite", "[%s] including remap configuration from %s", __func__, (const char *)path);
+    success = remap_parse_config_bti(path, &nbti);
+
+    // The sub-parse might have updated the rules list, so push it up to the parent parse.
+    bti->rules_list = nbti.rules_list;
+
+    if (!success) {
+      snprintf(errbuf, errbufsize, "failed to parse included file %s", bti->paramv[i]);
+      return (const char *)errbuf;
+    }
+  }
+
+  return NULL;
+}
+
+struct remap_directive
+{
+  const char * name;
+  const char * (*parser)(const char *, BUILD_TABLE_INFO *, char *, size_t);
+};
+
+static const remap_directive directives[] = {
+
+  { ".definefilter", parse_define_directive},
+  { ".deffilter", parse_define_directive},
+  { ".defflt", parse_define_directive},
+
+  { ".deletefilter", parse_delete_directive},
+  { ".delfilter", parse_delete_directive},
+  { ".delflt", parse_delete_directive},
+
+  { ".usefilter", parse_activate_directive},
+  { ".activefilter", parse_activate_directive},
+  { ".activatefilter", parse_activate_directive},
+  { ".useflt", parse_activate_directive},
+
+  { ".unusefilter", parse_deactivate_directive},
+  { ".deactivatefilter", parse_deactivate_directive},
+  { ".unactivefilter", parse_deactivate_directive},
+  { ".deuseflt", parse_deactivate_directive},
+  { ".unuseflt", parse_deactivate_directive},
+
+  { ".include", parse_include_directive },
+};
+
+const char *
+remap_parse_directive(BUILD_TABLE_INFO *bti, char * errbuf, size_t errbufsize)
+{
+  const char * directive = NULL;
+
+  // Check arguments
+  if (unlikely(!bti || !errbuf || errbufsize <= 0 || !bti->paramc || (directive = bti->paramv[0]) == NULL)) {
+    Debug("url_rewrite", "[parse_directive] Invalid argument(s)");
+    return "Invalid argument(s)";
+  }
+
+  for (unsigned i = 0; i < countof(directives); ++i) {
+    if (strcmp(directive, directives[i].name) == 0) {
+      return directives[i].parser(directive, bti, errbuf, errbufsize);
+    }
+  }
+
+  snprintf(errbuf, errbufsize, "Unknown directive \"%s\"", directive);
+  Debug("url_rewrite", "[parse_directive] %s", errbuf);
+  return (const char *) errbuf;
+}
+
+const char *
+remap_validate_filter_args(acl_filter_rule ** rule_pp, const char ** argv, int argc, char * errStrBuf, size_t errStrBufSize)
+{
+  acl_filter_rule *rule;
+  unsigned long ul;
+  const char *argptr;
+  char tmpbuf[1024];
+  src_ip_info_t *ipi;
+  int i, j, m;
+  bool new_rule_flg = false;
+
+  if (!rule_pp) {
+    Debug("url_rewrite", "[validate_filter_args] Invalid argument(s)");
+    return (const char *) "Invalid argument(s)";
+  }
+
+  if (is_debug_tag_set("url_rewrite")) {
+    printf("validate_filter_args: ");
+    for (i = 0; i < argc; i++)
+      printf("\"%s\" ", argv[i]);
+    printf("\n");
+  }
+
+  if ((rule = *rule_pp) == NULL) {
+    rule = new acl_filter_rule();
+    if (unlikely((*rule_pp = rule) == NULL)) {
+      Debug("url_rewrite", "[validate_filter_args] Memory allocation error");
+      return (const char *) "Memory allocation Error";
+    }
+    new_rule_flg = true;
+    Debug("url_rewrite", "[validate_filter_args] new acl_filter_rule class was created during remap rule processing");
+  }
+
+  for (i = 0; i < argc; i++) {
+    if ((ul = remap_check_option((const char **)&argv[i], 1, 0, NULL, &argptr)) == 0) {
+      Debug("url_rewrite", "[validate_filter_args] Unknow remap option - %s", argv[i]);
+      snprintf(errStrBuf, errStrBufSize, "Unknown option - \"%s\"", argv[i]);
+      errStrBuf[errStrBufSize - 1] = 0;
+      if (new_rule_flg) {
+        delete rule;
+        *rule_pp = NULL;
+      }
+      return (const char *) errStrBuf;
+    }
+    if (!argptr || !argptr[0]) {
+      Debug("url_rewrite", "[validate_filter_args] Empty argument in %s", argv[i]);
+      snprintf(errStrBuf, errStrBufSize, "Empty argument in \"%s\"", argv[i]);
+      errStrBuf[errStrBufSize - 1] = 0;
+      if (new_rule_flg) {
+        delete rule;
+        *rule_pp = NULL;
+      }
+      return (const char *) errStrBuf;
+    }
+
+    if (ul & REMAP_OPTFLG_METHOD) {     /* "method=" option */
+      // Please remember that the order of hash idx creation is very important and it is defined
+      // in HTTP.cc file
+      m = -1;
+      if (!strcasecmp(argptr, "CONNECT"))
+        m = HTTP_WKSIDX_CONNECT;
+      else if (!strcasecmp(argptr, "DELETE"))
+        m = HTTP_WKSIDX_DELETE;
+      else if (!strcasecmp(argptr, "GET"))
+        m = HTTP_WKSIDX_GET;
+      else if (!strcasecmp(argptr, "HEAD"))
+        m = HTTP_WKSIDX_HEAD;
+      else if (!strcasecmp(argptr, "ICP_QUERY"))
+        m = HTTP_WKSIDX_ICP_QUERY;
+      else if (!strcasecmp(argptr, "OPTIONS"))
+        m = HTTP_WKSIDX_OPTIONS;
+      else if (!strcasecmp(argptr, "POST"))
+        m = HTTP_WKSIDX_POST;
+      else if (!strcasecmp(argptr, "PURGE"))
+        m = HTTP_WKSIDX_PURGE;
+      else if (!strcasecmp(argptr, "PUT"))
+        m = HTTP_WKSIDX_PUT;
+      else if (!strcasecmp(argptr, "TRACE"))
+        m = HTTP_WKSIDX_TRACE;
+      else if (!strcasecmp(argptr, "PUSH"))
+        m = HTTP_WKSIDX_PUSH;
+      if (m != -1) {
+        m = m - HTTP_WKSIDX_CONNECT;    // get method index
+        rule->standard_method_lookup[m] = true;
+      } else {
+        Debug("url_rewrite", "[validate_filter_args] Using nonstandard method [%s]", argptr);
+        rule->nonstandard_methods.insert(argptr);
+      }
+      rule->method_restriction_enabled = true;
+    } else if (ul & REMAP_OPTFLG_SRC_IP) {      /* "src_ip=" option */
+      if (rule->src_ip_cnt >= ACL_FILTER_MAX_SRC_IP) {
+        Debug("url_rewrite", "[validate_filter_args] Too many \"src_ip=\" filters");
+        snprintf(errStrBuf, errStrBufSize, "Defined more than %d \"src_ip=\" filters!", ACL_FILTER_MAX_SRC_IP);
+        errStrBuf[errStrBufSize - 1] = 0;
+        if (new_rule_flg) {
+          delete rule;
+          *rule_pp = NULL;
+        }
+        return (const char *) errStrBuf;
+      }
+      ipi = &rule->src_ip_array[rule->src_ip_cnt];
+      if (ul & REMAP_OPTFLG_INVERT)
+        ipi->invert = true;
+      ink_strlcpy(tmpbuf, argptr, sizeof(tmpbuf));
+      // important! use copy of argument
+      if (ExtractIpRange(tmpbuf, &ipi->start.sa, &ipi->end.sa) != NULL) {
+        Debug("url_rewrite", "[validate_filter_args] Unable to parse IP value in %s", argv[i]);
+        snprintf(errStrBuf, errStrBufSize, "Unable to parse IP value in %s", argv[i]);
+        errStrBuf[errStrBufSize - 1] = 0;
+        if (new_rule_flg) {
+          delete rule;
+          *rule_pp = NULL;
+        }
+        return (const char*) errStrBuf;
+      }
+      for (j = 0; j < rule->src_ip_cnt; j++) {
+        if (rule->src_ip_array[j].start == ipi->start && rule->src_ip_array[j].end == ipi->end) {
+          ipi->reset();
+          ipi = NULL;
+          break;                /* we have the same src_ip in the list */
+        }
+      }
+      if (ipi) {
+        rule->src_ip_cnt++;
+        rule->src_ip_valid = 1;
+      }
+    } else if (ul & REMAP_OPTFLG_ACTION) {      /* "action=" option */
+      if (is_inkeylist(argptr, "0", "off", "deny", "disable", NULL)) {
+        rule->allow_flag = 0;
+      } else if (is_inkeylist(argptr, "1", "on", "allow", "enable", NULL)) {
+        rule->allow_flag = 1;
+      } else {
+        Debug("url_rewrite", "[validate_filter_args] Unknown argument \"%s\"", argv[i]);
+        snprintf(errStrBuf, errStrBufSize, "Unknown argument \"%s\"", argv[i]);
+        errStrBuf[errStrBufSize - 1] = 0;
+        if (new_rule_flg) {
+          delete rule;
+          *rule_pp = NULL;
+        }
+        return (const char *) errStrBuf;
+      }
+    }
+  }
+
+  if (is_debug_tag_set("url_rewrite"))
+    rule->print();
+
+  return NULL;                  /* success */
+}
+
+unsigned long
+remap_check_option(const char ** argv, int argc, unsigned long findmode, int *_ret_idx, const char **argptr)
+{
+  unsigned long ret_flags = 0;
+  int idx = 0;
+
+  if (argptr)
+    *argptr = NULL;
+  if (argv && argc > 0) {
+    for (int i = 0; i < argc; i++) {
+      if (!strcasecmp(argv[i], "map_with_referer")) {
+        if ((findmode & REMAP_OPTFLG_MAP_WITH_REFERER) != 0)
+          idx = i;
+        ret_flags |= REMAP_OPTFLG_MAP_WITH_REFERER;
+      } else if (!strncasecmp(argv[i], "plugin=", 7)) {
+        if ((findmode & REMAP_OPTFLG_PLUGIN) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][7];
+        ret_flags |= REMAP_OPTFLG_PLUGIN;
+      } else if (!strncasecmp(argv[i], "pparam=", 7)) {
+        if ((findmode & REMAP_OPTFLG_PPARAM) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][7];
+        ret_flags |= REMAP_OPTFLG_PPARAM;
+      } else if (!strncasecmp(argv[i], "method=", 7)) {
+        if ((findmode & REMAP_OPTFLG_METHOD) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][7];
+        ret_flags |= REMAP_OPTFLG_METHOD;
+      } else if (!strncasecmp(argv[i], "src_ip=~", 8)) {
+        if ((findmode & REMAP_OPTFLG_SRC_IP) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][8];
+        ret_flags |= (REMAP_OPTFLG_SRC_IP | REMAP_OPTFLG_INVERT);
+      } else if (!strncasecmp(argv[i], "src_ip=", 7)) {
+        if ((findmode & REMAP_OPTFLG_SRC_IP) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][7];
+        ret_flags |= REMAP_OPTFLG_SRC_IP;
+      } else if (!strncasecmp(argv[i], "action=", 7)) {
+        if ((findmode & REMAP_OPTFLG_ACTION) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][7];
+        ret_flags |= REMAP_OPTFLG_ACTION;
+      } else if (!strncasecmp(argv[i], "mapid=", 6)) {
+        if ((findmode & REMAP_OPTFLG_MAP_ID) != 0)
+          idx = i;
+        if (argptr)
+          *argptr = &argv[i][6];
+        ret_flags |= REMAP_OPTFLG_MAP_ID;
+      }
+
+      if ((findmode & ret_flags) && !argptr) {
+        if (_ret_idx)
+          *_ret_idx = idx;
+        return ret_flags;
+      }
+
+    }
+  }
+  if (_ret_idx)
+    *_ret_idx = idx;
+  return ret_flags;
+}
+
+int
+remap_load_plugin(const char ** argv, int argc, url_mapping *mp, char *errbuf, int errbufsize,
+    int jump_to_argc, int *plugin_found_at)
+{
+  TSRemapInterface ri;
+  struct stat stat_buf;
+  remap_plugin_info *pi;
+  char *c, *err, tmpbuf[2048], default_path[PATH_NAME_MAX];
+  const char *new_argv[1024];
+  char * parv[1024];
+  int idx = 0, retcode = 0;
+  int parc = 0;
+
+  *plugin_found_at = 0;
+
+  memset(parv, 0, sizeof(parv));
+  memset(new_argv, 0, sizeof(new_argv));
+  tmpbuf[0] = 0;
+
+  ink_assert((unsigned) argc < countof(new_argv));
+
+  if (jump_to_argc != 0) {
+    argc -= jump_to_argc;
+    int i = 0;
+    while (argv[i + jump_to_argc]) {
+      new_argv[i] = argv[i + jump_to_argc];
+      i++;
+    }
+    argv = &new_argv[0];
+    if (!remap_check_option(argv, argc, REMAP_OPTFLG_PLUGIN, &idx)) {
+      return -1;
+    }
+  } else {
+    if (unlikely(!mp || (remap_check_option(argv, argc, REMAP_OPTFLG_PLUGIN, &idx) & REMAP_OPTFLG_PLUGIN) == 0)) {
+      snprintf(errbuf, errbufsize, "Can't find remap plugin keyword or \"url_mapping\" is NULL");
+      return -1;                /* incorrect input data - almost impossible case */
+    }
+  }
+
+  if (unlikely((c = (char *) strchr(argv[idx], (int) '=')) == NULL || !(*(++c)))) {
+    snprintf(errbuf, errbufsize, "Can't find remap plugin file name in \"@%s\"", argv[idx]);
+    return -2;                  /* incorrect input data */
+  }
+
+  if (stat(c, &stat_buf) != 0) {
+    const char *plugin_default_path = TSPluginDirGet();
+
+    // Try with the plugin path instead
+    if (strlen(c) + strlen(plugin_default_path) > (PATH_NAME_MAX - 1)) {
+      Debug("remap_plugin", "way too large a path specified for remap plugin");
+      return -3;
+    }
+
+    snprintf(default_path, PATH_NAME_MAX, "%s/%s", plugin_default_path, c);
+    Debug("remap_plugin", "attempting to stat default plugin path: %s", default_path);
+
+    if (stat(default_path, &stat_buf) == 0) {
+      Debug("remap_plugin", "stat successful on %s using that", default_path);
+      c = &default_path[0];
+    } else {
+      snprintf(errbuf, errbufsize, "Can't find remap plugin file \"%s\"", c);
+      return -3;
+    }
+  }
+
+  Debug("remap_plugin", "using path %s for plugin", c);
+
+  if (!remap_pi_list || (pi = remap_pi_list->find_by_path(c)) == 0) {
+    pi = new remap_plugin_info(c);
+    if (!remap_pi_list) {
+      remap_pi_list = pi;
+    } else {
+      remap_pi_list->add_to_list(pi);
+    }
+    Debug("remap_plugin", "New remap plugin info created for \"%s\"", c);
+
+    // elevate the access to read files as root if compiled with capabilities, if not
+    // change the effective user to root
+    {
+      uint32_t elevate_access = 0;
+      REC_ReadConfigInteger(elevate_access, "proxy.config.plugin.load_elevated");
+      ElevateAccess access(elevate_access != 0);
+
+      if ((pi->dlh = dlopen(c, RTLD_NOW)) == NULL) {
+#if defined(freebsd) || defined(openbsd)
+        err = (char *)dlerror();
+#else
+        err = dlerror();
+#endif
+        snprintf(errbuf, errbufsize, "Can't load plugin \"%s\" - %s", c, err ? err : "Unknown dlopen() error");
+        return -4;
+      }
+      pi->fp_tsremap_init = (remap_plugin_info::_tsremap_init *) dlsym(pi->dlh, TSREMAP_FUNCNAME_INIT);
+      pi->fp_tsremap_done = (remap_plugin_info::_tsremap_done *) dlsym(pi->dlh, TSREMAP_FUNCNAME_DONE);
+      pi->fp_tsremap_new_instance = (remap_plugin_info::_tsremap_new_instance *) dlsym(pi->dlh, TSREMAP_FUNCNAME_NEW_INSTANCE);
+      pi->fp_tsremap_delete_instance = (remap_plugin_info::_tsremap_delete_instance *) dlsym(pi->dlh, TSREMAP_FUNCNAME_DELETE_INSTANCE);
+      pi->fp_tsremap_do_remap = (remap_plugin_info::_tsremap_do_remap *) dlsym(pi->dlh, TSREMAP_FUNCNAME_DO_REMAP);
+      pi->fp_tsremap_os_response = (remap_plugin_info::_tsremap_os_response *) dlsym(pi->dlh, TSREMAP_FUNCNAME_OS_RESPONSE);
+
+      if (!pi->fp_tsremap_init) {
+        snprintf(errbuf, errbufsize, "Can't find \"%s\" function in remap plugin \"%s\"", TSREMAP_FUNCNAME_INIT, c);
+        retcode = -10;
+      } else if (!pi->fp_tsremap_new_instance) {
+        snprintf(errbuf, errbufsize, "Can't find \"%s\" function in remap plugin \"%s\"",
+            TSREMAP_FUNCNAME_NEW_INSTANCE, c);
+        retcode = -11;
+      } else if (!pi->fp_tsremap_do_remap) {
+        snprintf(errbuf, errbufsize, "Can't find \"%s\" function in remap plugin \"%s\"", TSREMAP_FUNCNAME_DO_REMAP, c);
+        retcode = -12;
+      }
+      if (retcode) {
+        if (errbuf && errbufsize > 0)
+          Debug("remap_plugin", "%s", errbuf);
+        dlclose(pi->dlh);
+        pi->dlh = NULL;
+        return retcode;
+      }
+      memset(&ri, 0, sizeof(ri));
+      ri.size = sizeof(ri);
+      ri.tsremap_version = TSREMAP_VERSION;
+
+      if (pi->fp_tsremap_init(&ri, tmpbuf, sizeof(tmpbuf) - 1) != TS_SUCCESS) {
+        Warning("Failed to initialize plugin %s (non-zero retval) ... bailing out", pi->path);
+        return -5;
+      }
+    } // done elevating access
+    Debug("remap_plugin", "Remap plugin \"%s\" - initialization completed", c);
+  }
+
+  if (!pi->dlh) {
+    snprintf(errbuf, errbufsize, "Can't load plugin \"%s\"", c);
+    return -6;
+  }
+
+  if ((err = mp->fromURL.string_get(NULL)) == NULL) {
+    snprintf(errbuf, errbufsize, "Can't load fromURL from URL class");
+    return -7;
+  }
+  parv[parc++] = ats_strdup(err);
+  ats_free(err);
+
+  if ((err = mp->toUrl.string_get(NULL)) == NULL) {
+    snprintf(errbuf, errbufsize, "Can't load toURL from URL class");
+    return -7;
+  }
+  parv[parc++] = ats_strdup(err);
+  ats_free(err);
+
+  bool plugin_encountered = false;
+  // how many plugin parameters we have for this remapping
+  for (idx = 0; idx < argc && parc < (int) (countof(parv) - 1); idx++) {
+
+    if (plugin_encountered && !strncasecmp("plugin=", argv[idx], 7) && argv[idx][7]) {
+      *plugin_found_at = idx;
+      break;                    //if there is another plugin, lets deal with that later
+    }
+
+    if (!strncasecmp("plugin=", argv[idx], 7)) {
+      plugin_encountered = true;
+    }
+
+    if (!strncasecmp("pparam=", argv[idx], 7) && argv[idx][7]) {
+      parv[parc++] = const_cast<char *>(&(argv[idx][7]));
+    }
+  }
+
+  Debug("url_rewrite", "Viewing all parameters for config line");
+  for (int k = 0; k < argc; k++) {
+    Debug("url_rewrite", "Argument %d: %s", k, argv[k]);
+  }
+
+  Debug("url_rewrite", "Viewing parsed plugin parameters for %s: [%d]", pi->path, *plugin_found_at);
+  for (int k = 0; k < parc; k++) {
+    Debug("url_rewrite", "Argument %d: %s", k, parv[k]);
+  }
+
+  void* ih;
+
+  Debug("remap_plugin", "creating new plugin instance");
+
+  TSReturnCode res = TS_ERROR;
+  res = pi->fp_tsremap_new_instance(parc, parv, &ih, tmpbuf, sizeof(tmpbuf) - 1);
+
+  Debug("remap_plugin", "done creating new plugin instance");
+
+  ats_free(parv[0]);               // fromURL
+  ats_free(parv[1]);               // toURL
+
+  if (res != TS_SUCCESS) {
+    snprintf(errbuf, errbufsize, "Can't create new remap instance for plugin \"%s\" - %s", c,
+                 tmpbuf[0] ? tmpbuf : "Unknown plugin error");
+    Warning("Failed to create new instance for plugin %s (not a TS_SUCCESS return)", pi->path);
+    return -8;
+  }
+
+  mp->add_plugin(pi, ih);
+
+  return 0;
+}
+/** will process the regex mapping configuration and create objects in
+    output argument reg_map. It assumes existing data in reg_map is
+    inconsequential and will be perfunctorily null-ed;
+*/
+static bool
+process_regex_mapping_config(const char *from_host_lower, url_mapping *new_mapping, UrlRewrite::RegexMapping *reg_map)
+{
+  const char *str;
+  int str_index;
+  const char *to_host;
+  int to_host_len;
+  int substitution_id;
+  int substitution_count = 0;
+
+  reg_map->re = NULL;
+  reg_map->re_extra = NULL;
+  reg_map->to_url_host_template = NULL;
+  reg_map->to_url_host_template_len = 0;
+  reg_map->n_substitutions = 0;
+
+  reg_map->url_map = new_mapping;
+
+  // using from_host_lower (and not new_mapping->fromURL.host_get())
+  // as this one will be NULL-terminated (required by pcre_compile)
+  reg_map->re = pcre_compile(from_host_lower, 0, &str, &str_index, NULL);
+  if (reg_map->re == NULL) {
+    Warning("pcre_compile failed! Regex has error starting at %s", from_host_lower + str_index);
+    goto lFail;
+  }
+
+  reg_map->re_extra = pcre_study(reg_map->re, 0, &str);
+  if ((reg_map->re_extra == NULL) && (str != NULL)) {
+    Warning("pcre_study failed with message [%s]", str);
+    goto lFail;
+  }
+
+  int n_captures;
+  if (pcre_fullinfo(reg_map->re, reg_map->re_extra, PCRE_INFO_CAPTURECOUNT, &n_captures) != 0) {
+    Warning("pcre_fullinfo failed!");
+    goto lFail;
+  }
+  if (n_captures >= UrlRewrite::MAX_REGEX_SUBS) { // off by one for $0 (implicit capture)
+    Warning("Regex has %d capturing subpatterns (including entire regex); Max allowed: %d",
+            n_captures + 1, UrlRewrite::MAX_REGEX_SUBS);
+    goto lFail;
+  }
+
+  to_host = new_mapping->toUrl.host_get(&to_host_len);
+  for (int i = 0; i < (to_host_len - 1); ++i) {
+    if (to_host[i] == '$') {
+      if (substitution_count > UrlRewrite::MAX_REGEX_SUBS) {
+        Warning("Cannot have more than %d substitutions in mapping with host [%s]",
+                UrlRewrite::MAX_REGEX_SUBS, from_host_lower);
+        goto lFail;
+      }
+      substitution_id = to_host[i + 1] - '0';
+      if ((substitution_id < 0) || (substitution_id > n_captures)) {
+        Warning("Substitution id [%c] has no corresponding capture pattern in regex [%s]",
+              to_host[i + 1], from_host_lower);
+        goto lFail;
+      }
+      reg_map->substitution_markers[reg_map->n_substitutions] = i;
+      reg_map->substitution_ids[reg_map->n_substitutions] = substitution_id;
+      ++reg_map->n_substitutions;
+    }
+  }
+
+  // so the regex itself is stored in fromURL.host; string to match
+  // will be in the request; string to use for substitutions will be
+  // in this buffer
+  str = new_mapping->toUrl.host_get(&str_index); // reusing str and str_index
+  reg_map->to_url_host_template_len = str_index;
+  reg_map->to_url_host_template = static_cast<char *>(ats_malloc(str_index));
+  memcpy(reg_map->to_url_host_template, str, str_index);
+
+  return true;
+
+ lFail:
+  if (reg_map->re) {
+    pcre_free(reg_map->re);
+    reg_map->re = NULL;
+  }
+  if (reg_map->re_extra) {
+    pcre_free(reg_map->re_extra);
+    reg_map->re_extra = NULL;
+  }
+  if (reg_map->to_url_host_template) {
+    ats_free(reg_map->to_url_host_template);
+    reg_map->to_url_host_template = NULL;
+    reg_map->to_url_host_template_len = 0;
+  }
+  return false;
+}
+
+static bool
+remap_parse_config_bti(const char * path, BUILD_TABLE_INFO * bti)
+{
+
+  char errBuf[1024], errStrBuf[1024];
+  Tokenizer whiteTok(" \t");
+  bool alarm_already = false;
+  const char *errStr;
+
+  // Vars to parse line in file
+  char *tok_state, *cur_line, *cur_line_tmp;
+  int rparse, cur_line_size, cln = 0;        // Our current line number
+
+  // Vars to build the mapping
+  const char *fromScheme, *toScheme;
+  int fromSchemeLen, toSchemeLen;
+  const char *fromHost, *toHost;
+  int fromHostLen, toHostLen;
+  char *map_from, *map_from_start;
+  char *map_to, *map_to_start;
+  const char *tmp;              // Appease the DEC compiler
+  char *fromHost_lower = NULL;
+  char *fromHost_lower_ptr = NULL;
+  char fromHost_lower_buf[1024];
+  url_mapping *new_mapping = NULL;
+  mapping_type maptype;
+  referer_info *ri;
+  int origLength;
+  int length;
+  int tok_count;
+
+  UrlRewrite::RegexMapping* reg_map;
+  bool is_cur_mapping_regex;
+  const char *type_id_str;
+
+  xptr<char> file_buf(readIntoBuffer(path, modulePrefix, NULL));
+  if (!file_buf) {
+    Warning("can't load remapping configuration file %s", path);
+    return false;
+  }
+
+  Debug("url_rewrite", "[BuildTable] UrlRewrite::BuildTable()");
+
+  for (cur_line = tokLine(file_buf, &tok_state, '\\'); cur_line != NULL;) {
+    errStrBuf[0] = 0;
+    bti->reset();
+
+    // Strip leading whitespace
+    while (*cur_line && isascii(*cur_line) && isspace(*cur_line))
+      ++cur_line;
+
+    if ((cur_line_size = strlen((char *) cur_line)) <= 0) {
+      cur_line = tokLine(NULL, &tok_state, '\\');
+      ++cln;
+      continue;
+    }
+
+    // Strip trailing whitespace
+    cur_line_tmp = cur_line + cur_line_size - 1;
+    while (cur_line_tmp != cur_line && isascii(*cur_line_tmp) && isspace(*cur_line_tmp)) {
+      *cur_line_tmp = '\0';
+      --cur_line_tmp;
+    }
+
+    if ((cur_line_size = strlen((char *) cur_line)) <= 0 || *cur_line == '#' || *cur_line == '\0') {
+      cur_line = tokLine(NULL, &tok_state, '\\');
+      ++cln;
+      continue;
+    }
+
+    Debug("url_rewrite", "[BuildTable] Parsing: \"%s\"", cur_line);
+
+    tok_count = whiteTok.Initialize(cur_line, SHARE_TOKS);
+
+    for (int j = 0; j < tok_count; j++) {
+      if (((char *) whiteTok[j])[0] == '@') {
+        if (((char *) whiteTok[j])[1])
+          bti->argv[bti->argc++] = ats_strdup(&(((char *) whiteTok[j])[1]));
+      } else {
+        bti->paramv[bti->paramc++] = ats_strdup((char *) whiteTok[j]);
+      }
+    }
+
+    // Initial verification for number of arguments
+    if (bti->paramc<1 || (bti->paramc < 3 && bti->paramv[0][0] != '.') || bti->paramc> BUILD_TABLE_MAX_ARGS) {
+      snprintf(errBuf, sizeof(errBuf), "%s Malformed line %d in file %s", modulePrefix, cln + 1, path);
+      errStr = errStrBuf;
+      goto MAP_ERROR;
+    }
+    // just check all major flags/optional arguments
+    bti->remap_optflg = remap_check_option((const char **)bti->argv, bti->argc);
+
+    // Check directive keywords (starting from '.')
+    if (bti->paramv[0][0] == '.') {
+      if ((errStr = remap_parse_directive(bti, errStrBuf, sizeof(errStrBuf))) != NULL) {
+        snprintf(errBuf, sizeof(errBuf) - 1, "%s Error on line %d - %s", modulePrefix, cln + 1, errStr);
+        errStr = errStrBuf;
+        goto MAP_ERROR;
+      }
+      // We skip the rest of the parsing here.
+      cur_line = tokLine(NULL, &tok_state, '\\');
+      ++cln;
+      continue;
+    }
+
+    is_cur_mapping_regex = (strncasecmp("regex_", bti->paramv[0], 6) == 0);
+    type_id_str = is_cur_mapping_regex ? (bti->paramv[0] + 6) : bti->paramv[0];
+
+    // Check to see whether is a reverse or forward mapping
+    if (!strcasecmp("reverse_map", type_id_str)) {
+      Debug("url_rewrite", "[BuildTable] - REVERSE_MAP");
+      maptype = REVERSE_MAP;
+    } else if (!strcasecmp("map", type_id_str)) {
+      Debug("url_rewrite", "[BuildTable] - %s",
+            ((bti->remap_optflg & REMAP_OPTFLG_MAP_WITH_REFERER) == 0) ? "FORWARD_MAP" : "FORWARD_MAP_REFERER");
+      maptype = ((bti->remap_optflg & REMAP_OPTFLG_MAP_WITH_REFERER) == 0) ? FORWARD_MAP : FORWARD_MAP_REFERER;
+    } else if (!strcasecmp("redirect", type_id_str)) {
+      Debug("url_rewrite", "[BuildTable] - PERMANENT_REDIRECT");
+      maptype = PERMANENT_REDIRECT;
+    } else if (!strcasecmp("redirect_temporary", type_id_str)) {
+      Debug("url_rewrite", "[BuildTable] - TEMPORARY_REDIRECT");
+      maptype = TEMPORARY_REDIRECT;
+    } else if (!strcasecmp("map_with_referer", type_id_str)) {
+      Debug("url_rewrite", "[BuildTable] - FORWARD_MAP_REFERER");
+      maptype = FORWARD_MAP_REFERER;
+    } else if (!strcasecmp("map_with_recv_port", type_id_str)) {
+      Debug("url_rewrite", "[BuildTable] - FORWARD_MAP_WITH_RECV_PORT");
+      maptype = FORWARD_MAP_WITH_RECV_PORT;
+    } else {
+      snprintf(errBuf, sizeof(errBuf) - 1, "%s Unknown mapping type at line %d", modulePrefix, cln + 1);
+      errStr = errStrBuf;
+      goto MAP_ERROR;
+    }
+
+    new_mapping = new url_mapping(cln);  // use line # for rank for now
+
+    // apply filter rules if we have to
+    if ((errStr = process_filter_opt(new_mapping, bti, errStrBuf, sizeof(errStrBuf))) != NULL) {
+      goto MAP_ERROR;
+    }
+
+    new_mapping->map_id = 0;
+    if ((bti->remap_optflg & REMAP_OPTFLG_MAP_ID) != 0) {
+      int idx = 0;
+      char *c;
+      int ret = remap_check_option((const char **)bti->argv, bti->argc, REMAP_OPTFLG_MAP_ID, &idx);
+      if (ret & REMAP_OPTFLG_MAP_ID) {
+        c = strchr(bti->argv[idx], (int) '=');
+        new_mapping->map_id = (unsigned int) atoi(++c);
+      }
+    }
+
+    map_from = bti->paramv[1];
+    length = UrlWhack(map_from, &origLength);
+
+    // FIX --- what does this comment mean?
+    //
+    // URL::create modified map_from so keep a point to
+    //   the beginning of the string
+    if ((tmp = (map_from_start = map_from)) != NULL && length > 2 && tmp[length - 1] == '/' && tmp[length - 2] == '/') {
+      new_mapping->unique = true;
+      length -= 2;
+    }
+
+    new_mapping->fromURL.create(NULL);
+    rparse = new_mapping->fromURL.parse_no_path_component_breakdown(tmp, length);
+
+    map_from_start[origLength] = '\0';  // Unwhack
+
+    if (rparse != PARSE_DONE) {
+      errStr = "Malformed From URL";
+      goto MAP_ERROR;
+    }
+
+    map_to = bti->paramv[2];
+    length = UrlWhack(map_to, &origLength);
+    map_to_start = map_to;
+    tmp = map_to;
+
+    new_mapping->toUrl.create(NULL);
+    rparse = new_mapping->toUrl.parse_no_path_component_breakdown(tmp, length);
+    map_to_start[origLength] = '\0';    // Unwhack
+
+    if (rparse != PARSE_DONE) {
+      errStr = "Malformed To URL";
+      goto MAP_ERROR;
+    }
+
+    fromScheme = new_mapping->fromURL.scheme_get(&fromSchemeLen);
+    // If the rule is "/" or just some other relative path
+    //   we need to default the scheme to http
+    if (fromScheme == NULL || fromSchemeLen == 0) {
+      new_mapping->fromURL.scheme_set(URL_SCHEME_HTTP, URL_LEN_HTTP);
+      fromScheme = new_mapping->fromURL.scheme_get(&fromSchemeLen);
+      new_mapping->wildcard_from_scheme = true;
+    }
+    toScheme = new_mapping->toUrl.scheme_get(&toSchemeLen);
+
+    // Include support for HTTPS scheme
+    // includes support for FILE scheme
+    if ((fromScheme != URL_SCHEME_HTTP && fromScheme != URL_SCHEME_HTTPS &&
+         fromScheme != URL_SCHEME_FILE &&
+         fromScheme != URL_SCHEME_TUNNEL &&
+         fromScheme != URL_SCHEME_WS &&
+         fromScheme != URL_SCHEME_WSS) ||
+        (toScheme != URL_SCHEME_HTTP && toScheme != URL_SCHEME_HTTPS &&
+         toScheme != URL_SCHEME_TUNNEL && toScheme != URL_SCHEME_WS &&
+         toScheme != URL_SCHEME_WSS)) {
+      errStr = "Only http, https, ws, wss, and tunnel remappings are supported";
+      goto MAP_ERROR;
+    }
+
+    // If mapping from WS or WSS we must map out to WS or WSS
+    if ( (fromScheme == URL_SCHEME_WSS || fromScheme == URL_SCHEME_WS) &&
+         (toScheme != URL_SCHEME_WSS && toScheme != URL_SCHEME_WS)) {
+      errStr = "WS or WSS can only be mapped out to WS or WSS.";
+      goto MAP_ERROR;
+    }
+
+    // Check if a tag is specified.
+    if (bti->paramv[3] != NULL) {
+      if (maptype == FORWARD_MAP_REFERER) {
+        new_mapping->filter_redirect_url = ats_strdup(bti->paramv[3]);
+        if (!strcasecmp(bti->paramv[3], "<default>") || !strcasecmp(bti->paramv[3], "default") ||
+            !strcasecmp(bti->paramv[3], "<default_redirect_url>") || !strcasecmp(bti->paramv[3], "default_redirect_url"))
+          new_mapping->default_redirect_url = true;
+        new_mapping->redir_chunk_list = redirect_tag_str::parse_format_redirect_url(bti->paramv[3]);
+        for (int j = bti->paramc; j > 4; j--) {
+          if (bti->paramv[j - 1] != NULL) {
+            char refinfo_error_buf[1024];
+            bool refinfo_error = false;
+
+            ri = new referer_info((char *)bti->paramv[j - 1], &refinfo_error, refinfo_error_buf,
+                                      sizeof(refinfo_error_buf));
+            if (refinfo_error) {
+              snprintf(errBuf, sizeof(errBuf), "%s Incorrect Referer regular expression \"%s\" at line %d - %s",
+                           modulePrefix, bti->paramv[j - 1], cln + 1, refinfo_error_buf);
+              SignalError(errBuf, alarm_already);
+              delete ri;
+              ri = 0;
+            }
+
+            if (ri && ri->negative) {
+              if (ri->any) {
+                new_mapping->optional_referer = true;   /* referer header is optional */
+                delete ri;
+                ri = 0;
+              } else {
+                new_mapping->negative_referer = true;   /* we have negative referer in list */
+              }
+            }
+            if (ri) {
+              ri->next = new_mapping->referer_list;
+              new_mapping->referer_list = ri;
+            }
+          }
+        }
+      } else {
+        new_mapping->tag = ats_strdup(&(bti->paramv[3][0]));
+      }
+    }
+    // Check to see the fromHost remapping is a relative one
+    fromHost = new_mapping->fromURL.host_get(&fromHostLen);
+    if (fromHost == NULL || fromHostLen <= 0) {
+      if (maptype == FORWARD_MAP || maptype == FORWARD_MAP_REFERER || maptype == FORWARD_MAP_WITH_RECV_PORT) {
+        if (*map_from_start != '/') {
+          errStr = "Relative remappings must begin with a /";
+          goto MAP_ERROR;
+        } else {
+          fromHost = "";
+          fromHostLen = 0;
+        }
+      } else {
+        errStr = "Remap source in reverse mappings requires a hostname";
+        goto MAP_ERROR;
+      }
+    }
+
+    toHost = new_mapping->toUrl.host_get(&toHostLen);
+    if (toHost == NULL || toHostLen <= 0) {
+      errStr = "The remap destinations require a hostname";
+      goto MAP_ERROR;
+    }
+    // Get rid of trailing slashes since they interfere
+    //  with our ability to send redirects
+
+    // You might be tempted to remove these lines but the new
+    // optimized header system will introduce problems.  You
+    // might get two slashes occasionally instead of one because
+    // the rest of the system assumes that trailing slashes have
+    // been removed.
+
+    if (unlikely(fromHostLen >= (int) sizeof(fromHost_lower_buf))) {
+      fromHost_lower = (fromHost_lower_ptr = (char *)ats_malloc(fromHostLen + 1));
+    } else {
+      fromHost_lower = &fromHost_lower_buf[0];
+    }
+    // Canonicalize the hostname by making it lower case
+    memcpy(fromHost_lower, fromHost, fromHostLen);
+    fromHost_lower[fromHostLen] = 0;
+    LowerCaseStr(fromHost_lower);
+
+    // set the normalized string so nobody else has to normalize this
+    new_mapping->fromURL.host_set(fromHost_lower, fromHostLen);
+
+    reg_map = NULL;
+    if (is_cur_mapping_regex) {
+      reg_map = new UrlRewrite::RegexMapping();
+      if (!process_regex_mapping_config(fromHost_lower, new_mapping, reg_map)) {
+        errStr = "Could not process regex mapping config line";
+        goto MAP_ERROR;
+      }
+      Debug("url_rewrite_regex", "Configured regex rule for host [%s]", fromHost_lower);
+    }
+
+    // If a TS receives a request on a port which is set to tunnel mode
+    // (ie, blind forwarding) and a client connects directly to the TS,
+    // then the TS will use its IPv4 address and remap rules given
+    // to send the request to its proper destination.
+    // See HttpTransact::HandleBlindTunnel().
+    // Therefore, for a remap rule like "map tunnel://hostname..."
+    // in remap.config, we also needs to convert hostname to its IPv4 addr
+    // and gives a new remap rule with the IPv4 addr.
+    if ((maptype == FORWARD_MAP || maptype == FORWARD_MAP_REFERER || maptype == FORWARD_MAP_WITH_RECV_PORT) &&
+        fromScheme == URL_SCHEME_TUNNEL && (fromHost_lower[0]<'0' || fromHost_lower[0]> '9')) {
+      addrinfo* ai_records; // returned records.
+      ip_text_buffer ipb; // buffer for address string conversion.
+      if (0 == getaddrinfo(fromHost_lower, 0, 0, &ai_records)) {
+        for ( addrinfo* ai_spot = ai_records ; ai_spot ; ai_spot = ai_spot->ai_next) {
+          if (ats_is_ip(ai_spot->ai_addr) && !ats_is_ip_any(ai_spot->ai_addr)) {
+            url_mapping *u_mapping;
+
+            ats_ip_ntop(ai_spot->ai_addr, ipb, sizeof ipb);
+            u_mapping = new url_mapping;
+            u_mapping->fromURL.create(NULL);
+            u_mapping->fromURL.copy(&new_mapping->fromURL);
+            u_mapping->fromURL.host_set(ipb, strlen(ipb));
+            u_mapping->toUrl.create(NULL);
+            u_mapping->toUrl.copy(&new_mapping->toUrl);
+
+            if (bti->paramv[3] != NULL) {
+              u_mapping->tag = ats_strdup(&(bti->paramv[3][0]));
+            }
+
+            if (!bti->rewrite->InsertForwardMapping(maptype, u_mapping, ipb)) {
+              errStr = "Unable to add mapping rule to lookup table";
+              freeaddrinfo(ai_records);
+              goto MAP_ERROR;
+            }
+          }
+        }
+
+        freeaddrinfo(ai_records);
+      }
+    }
+
+    // Check "remap" plugin options and load .so object
+    if ((bti->remap_optflg & REMAP_OPTFLG_PLUGIN) != 0 && (maptype == FORWARD_MAP || maptype == FORWARD_MAP_REFERER ||
+                                                          maptype == FORWARD_MAP_WITH_RECV_PORT)) {
+      if ((remap_check_option((const char **)bti->argv, bti->argc, REMAP_OPTFLG_PLUGIN, &tok_count) & REMAP_OPTFLG_PLUGIN) != 0) {
+        int plugin_found_at = 0;
+        int jump_to_argc = 0;
+
+        // this loads the first plugin
+        if (remap_load_plugin((const char **)bti->argv, bti->argc, new_mapping, errStrBuf, sizeof(errStrBuf), 0, &plugin_found_at)) {
+          Debug("remap_plugin", "Remap plugin load error - %s", errStrBuf[0] ? errStrBuf : "Unknown error");
+          errStr = errStrBuf;
+          goto MAP_ERROR;
+        }
+        //this loads any subsequent plugins (if present)
+        while (plugin_found_at) {
+          jump_to_argc += plugin_found_at;
+          if (remap_load_plugin((const char **)bti->argv, bti->argc, new_mapping, errStrBuf, sizeof(errStrBuf), jump_to_argc, &plugin_found_at)) {
+            Debug("remap_plugin", "Remap plugin load error - %s", errStrBuf[0] ? errStrBuf : "Unknown error");
+            errStr = errStrBuf;
+            goto MAP_ERROR;
+          }
+        }
+      }
+    }
+
+    // Now add the mapping to appropriate container
+    if (!bti->rewrite->InsertMapping(maptype, new_mapping, reg_map, fromHost_lower, is_cur_mapping_regex)) {
+      errStr = "Unable to add mapping rule to lookup table";
+      goto MAP_ERROR;
+    }
+
+    fromHost_lower_ptr = (char *)ats_free_null(fromHost_lower_ptr);
+
+    cur_line = tokLine(NULL, &tok_state, '\\');
+    ++cln;
+    continue;
+
+    // Deal with error / warning scenarios
+  MAP_ERROR:
+    Warning("Could not add rule at line #%d; Aborting!", cln + 1);
+    snprintf(errBuf, sizeof(errBuf), "%s %s at line %d", modulePrefix, errStr, cln + 1);
+    SignalError(errBuf, alarm_already);
+    return false;
+  }                             /* end of while(cur_line != NULL) */
+
+  return true;
+}
+
+bool
+remap_parse_config(const char * path, UrlRewrite * rewrite)
+{
+    BUILD_TABLE_INFO bti;
+
+    bti.rewrite = rewrite;
+    return remap_parse_config_bti(path, &bti);
+}
diff --git a/proxy/http/remap/RemapConfig.h b/proxy/http/remap/RemapConfig.h
new file mode 100644
index 00000000..d9e0a127
--- /dev/null
+++ b/proxy/http/remap/RemapConfig.h
@@ -0,0 +1,79 @@
+/** @file
+ *
+ *  Remap configuration file parsing.
+ *
+ *  @section license License
+ *
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef REMAPCONFIG_H_E862FB4C_EFFC_4F2A_8BF2_9AB6E1E5E9CF
+#define REMAPCONFIG_H_E862FB4C_EFFC_4F2A_8BF2_9AB6E1E5E9CF
+
+#include "AclFiltering.h"
+
+class UrlRewrite;
+
+#define BUILD_TABLE_MAX_ARGS 2048
+
+// Remap inline options
+#define REMAP_OPTFLG_MAP_WITH_REFERER 0x01      /* "map_with_referer" option */
+#define REMAP_OPTFLG_PLUGIN           0x02      /* "plugin=" option (per remap plugin) */
+#define REMAP_OPTFLG_PPARAM           0x04      /* "pparam=" option (per remap plugin option) */
+#define REMAP_OPTFLG_METHOD           0x08      /* "method=" option (used for ACL filtering) */
+#define REMAP_OPTFLG_SRC_IP           0x10      /* "src_ip=" option (used for ACL filtering) */
+#define REMAP_OPTFLG_ACTION           0x20      /* "action=" option (used for ACL filtering) */
+#define REMAP_OPTFLG_MAP_ID          0x800      /* associate a map ID with this rule */
+#define REMAP_OPTFLG_INVERT     0x80000000      /* "invert" the rule (for src_ip at least) */
+#define REMAP_OPTFLG_ALL_FILTERS (REMAP_OPTFLG_METHOD|REMAP_OPTFLG_SRC_IP|REMAP_OPTFLG_ACTION)
+
+struct BUILD_TABLE_INFO
+{
+  BUILD_TABLE_INFO();
+  ~BUILD_TABLE_INFO();
+
+  unsigned long remap_optflg;
+  int paramc;
+  int argc;
+  char *paramv[BUILD_TABLE_MAX_ARGS];
+  char *argv[BUILD_TABLE_MAX_ARGS];
+
+  acl_filter_rule *rules_list;  // all rules defined in config files as .define_filter foobar @src_ip=.....
+  UrlRewrite *  rewrite;        // Pointer to the UrlRewrite object we are parsing for.
+
+  // Clear the argument vector.
+  void reset();
+
+private:
+  BUILD_TABLE_INFO(const BUILD_TABLE_INFO&); // disabled
+  BUILD_TABLE_INFO& operator=(const BUILD_TABLE_INFO&); // disabled
+
+};
+
+const char *
+remap_parse_directive(BUILD_TABLE_INFO * bti, char * errbuf, size_t errbufsize);
+
+const char *
+remap_validate_filter_args(acl_filter_rule ** rule_pp, const char ** argv, int argc, char * errStrBuf, size_t errStrBufSize);
+
+unsigned long
+remap_check_option(const char ** argv, int argc, unsigned long findmode = 0, int *_ret_idx = NULL, const char ** argptr = NULL);
+
+bool
+remap_parse_config(const char * path, UrlRewrite * rewrite);
+
+#endif /* REMAPCONFIG_H_E862FB4C_EFFC_4F2A_8BF2_9AB6E1E5E9CF */
diff --git a/proxy/http/remap/RemapPluginInfo.cc b/proxy/http/remap/RemapPluginInfo.cc
new file mode 100644
index 00000000..8f979339
--- /dev/null
+++ b/proxy/http/remap/RemapPluginInfo.cc
@@ -0,0 +1,98 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "RemapPluginInfo.h"
+
+remap_plugin_info::remap_plugin_info(char *_path)
+  :  next(0), path(NULL), path_size(0), dlh(NULL), fp_tsremap_init(NULL), fp_tsremap_done(NULL), fp_tsremap_new_instance(NULL),
+     fp_tsremap_delete_instance(NULL), fp_tsremap_do_remap(NULL), fp_tsremap_os_response(NULL) 
+{
+  // coverity did not see ats_free
+  // coverity[ctor_dtor_leak]
+  if (_path && likely((path = ats_strdup(_path)) > 0))
+    path_size = strlen(path);
+}
+
+remap_plugin_info::~remap_plugin_info()
+{
+  ats_free(path);
+  if (dlh)
+    dlclose(dlh);
+}
+
+
+//
+// Find a plugin by path from our linked list
+//
+remap_plugin_info *
+remap_plugin_info::find_by_path(char *_path)
+{
+  int _path_size = 0;
+  remap_plugin_info *pi = 0;
+
+  if (likely(_path && (_path_size = strlen(_path)) > 0)) {
+    for (pi = this; pi; pi = pi->next) {
+      if (pi->path && pi->path_size == _path_size && !strcmp(pi->path, _path))
+        break;
+    }
+  }
+
+  return pi;
+}
+
+
+//
+// Add a plugin to the linked list
+//
+void
+remap_plugin_info::add_to_list(remap_plugin_info * pi)
+{
+  remap_plugin_info *p = this;
+
+  if (likely(pi)) {
+    while (p->next)
+      p = p->next;
+
+    p->next = pi;
+    pi->next = NULL;
+  }
+}
+
+
+//
+// Remove and delete all plugins from a list, including ourselves.
+//
+void
+remap_plugin_info::delete_my_list()
+{
+  remap_plugin_info *p = this->next;
+
+  while (p) {
+    remap_plugin_info *tmp = p;
+
+    p = p->next;
+    delete tmp;
+  }
+
+  delete this;
+}
diff --git a/proxy/http/remap/RemapPluginInfo.h b/proxy/http/remap/RemapPluginInfo.h
new file mode 100644
index 00000000..41caac85
--- /dev/null
+++ b/proxy/http/remap/RemapPluginInfo.h
@@ -0,0 +1,84 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#if !defined (_REMAPPLUGININFO_h_)
+#define _REMAPPLUGININFO_h_
+#include "libts.h"
+#include "api/ts/ts.h"
+#include "api/ts/remap.h"
+
+#define TSREMAP_FUNCNAME_INIT "TSRemapInit"
+#define TSREMAP_FUNCNAME_DONE "TSRemapDone"
+#define TSREMAP_FUNCNAME_NEW_INSTANCE "TSRemapNewInstance"
+#define TSREMAP_FUNCNAME_DELETE_INSTANCE "TSRemapDeleteInstance"
+#define TSREMAP_FUNCNAME_DO_REMAP "TSRemapDoRemap"
+#define TSREMAP_FUNCNAME_OS_RESPONSE "TSRemapOSResponse"
+
+class url_mapping;
+
+/**
+ *
+**/
+class remap_plugin_info
+{
+public:
+  typedef TSReturnCode _tsremap_init(TSRemapInterface* api_info, char* errbuf, int errbuf_size);
+  typedef void _tsremap_done(void);
+  typedef TSReturnCode _tsremap_new_instance(int argc, char* argv[], void** ih, char* errbuf, int errbuf_size);
+  typedef void _tsremap_delete_instance(void*);
+  typedef TSRemapStatus _tsremap_do_remap(void* ih, TSHttpTxn rh, TSRemapRequestInfo* rri);
+  typedef void _tsremap_os_response(void* ih, TSHttpTxn rh, int os_response_type);
+
+  remap_plugin_info *next;
+  char *path;
+  int path_size;
+  void *dlh;                    /* "handle" for the dynamic library */
+  _tsremap_init *fp_tsremap_init;
+  _tsremap_done *fp_tsremap_done;
+  _tsremap_new_instance *fp_tsremap_new_instance;
+  _tsremap_delete_instance *fp_tsremap_delete_instance;
+  _tsremap_do_remap *fp_tsremap_do_remap;
+  _tsremap_os_response *fp_tsremap_os_response;
+
+  remap_plugin_info(char *_path);
+  ~remap_plugin_info();
+
+  remap_plugin_info *find_by_path(char *_path);
+  void add_to_list(remap_plugin_info * pi);
+  void delete_my_list();
+};
+
+
+/**
+ * struct host_hdr_info;
+ * Used to store info about host header
+**/
+struct host_hdr_info
+{
+  const char *request_host;
+  int host_len;
+  int request_port;
+};
+
+
+#endif
diff --git a/proxy/http/remap/RemapPlugins.cc b/proxy/http/remap/RemapPlugins.cc
new file mode 100644
index 00000000..1b5fda34
--- /dev/null
+++ b/proxy/http/remap/RemapPlugins.cc
@@ -0,0 +1,199 @@
+/** @file
+
+  Class to execute one (or more) remap plugin(s).
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "RemapPlugins.h"
+
+ClassAllocator<RemapPlugins> pluginAllocator("RemapPluginsAlloc");
+
+TSRemapStatus
+RemapPlugins::run_plugin(remap_plugin_info* plugin)
+{
+  TSRemapStatus plugin_retcode;
+  TSRemapRequestInfo rri;
+  url_mapping *map = _s->url_map.getMapping();
+  URL * map_from = _s->url_map.getFromURL();
+  URL * map_to = _s->url_map.getToURL();
+
+  // This is the equivalent of TSHttpTxnClientReqGet(), which every remap plugin would
+  // have to call.
+  rri.requestBufp = reinterpret_cast<TSMBuffer>(_request_header);
+  rri.requestHdrp = reinterpret_cast<TSMLoc>(_request_header->m_http);
+
+  // Read-only URL's (TSMLoc's to the SDK)
+  rri.mapFromUrl = reinterpret_cast<TSMLoc>(map_from->m_url_impl);
+  rri.mapToUrl = reinterpret_cast<TSMLoc>(map_to->m_url_impl);
+  rri.requestUrl = reinterpret_cast<TSMLoc>(_request_url->m_url_impl);
+
+  rri.redirect = 0;
+
+  // These are made to reflect the "defaults" that will be used in
+  // the case where the plugins don't modify them. It's semi-weird
+  // that the "from" and "to" URLs changes when chaining happens, but
+  // it is necessary to get predictable behavior.
+#if 0
+  if (_cur == 0) {
+    rri.remap_from_host = map_from->host_get(&rri.remap_from_host_size);
+    rri.remap_from_port = map_from->port_get();
+    rri.remap_from_path = map_from->path_get(&rri.remap_from_path_size);
+    rri.from_scheme = map_from->scheme_get(&rri.from_scheme_len);
+  } else {
+    rri.remap_from_host = _request_url->host_get(&rri.remap_from_host_size);
+    rri.remap_from_port = _request_url->port_get();
+    rri.remap_from_path = _request_url->path_get(&rri.remap_from_path_size);
+    rri.from_scheme = _request_url->scheme_get(&rri.from_scheme_len);
+  }
+#endif
+
+  void* ih = map->get_instance(_cur);
+
+  // Prepare State for the future
+  if (_s && _cur == 0) {
+    _s->fp_tsremap_os_response = plugin->fp_tsremap_os_response;
+    _s->remap_plugin_instance = ih;
+  }
+
+  plugin_retcode = plugin->fp_tsremap_do_remap(ih, _s ? reinterpret_cast<TSHttpTxn>(_s->state_machine) : NULL, &rri);
+  // TODO: Deal with negative return codes here
+  if (plugin_retcode < 0)
+    plugin_retcode = TSREMAP_NO_REMAP;
+
+  // First step after plugin remap must be "redirect url" check
+  if ((TSREMAP_DID_REMAP == plugin_retcode || TSREMAP_DID_REMAP_STOP == plugin_retcode) && rri.redirect)
+    _s->remap_redirect = _request_url->string_get(NULL);
+
+  return plugin_retcode;
+}
+
+/**
+  This is the equivalent of the old DoRemap().
+
+  @return 1 when you are done doing crap (otherwise, you get re-called
+    with schedule_imm and i hope you have something more to do), else
+    0 if you have something more do do (this isnt strict and we check
+    there actually *is* something to do).
+
+*/
+int
+RemapPlugins::run_single_remap()
+{
+
+  url_mapping *       map = _s->url_map.getMapping();
+  remap_plugin_info * plugin = map->get_plugin(_cur);    //get the nth plugin in our list of plugins
+  TSRemapStatus       plugin_retcode = TSREMAP_NO_REMAP;
+
+  Debug("url_rewrite", "running single remap rule id %d for the %d%s time",
+      map->map_id, _cur, _cur == 1 ? "st" : _cur == 2 ? "nd" : _cur == 3 ? "rd" : "th");
+
+  // There might not be a plugin if we are a regular non-plugin map rule. In that case, we will fall through
+  // and do the default mapping and then stop.
+  if (plugin) {
+    plugin_retcode = run_plugin(plugin);
+  }
+
+  _cur++;
+
+  // If the plugin redirected, we need to end the remap chain now.
+  if (_s->remap_redirect) {
+    return 1;
+  }
+
+  if (TSREMAP_NO_REMAP == plugin_retcode || TSREMAP_NO_REMAP_STOP == plugin_retcode) {
+    // After running the first plugin, rewrite the request URL. This is doing the default rewrite rule
+    // to handle the case where no plugin ever rewrites.
+    //
+    // XXX we could probably optimize this a bit more by keeping a flag and only rewriting the request URL
+    // if no plugin has rewritten it already.
+    if ((_cur == 1) && (HTTP_WKSIDX_CONNECT != _s->hdr_info.client_request.method_get_wksidx())) {
+      Debug("url_rewrite", "plugin did not change host, port or path, copying from mapping rule");
+      url_rewrite_remap_request(_s->url_map, _request_url);
+    }
+  }
+
+  if (TSREMAP_NO_REMAP_STOP == plugin_retcode || TSREMAP_DID_REMAP_STOP == plugin_retcode) {
+      Debug("url_rewrite", "breaking remap plugin chain since last plugin said we should stop");
+      return 1;
+  }
+
+  if (_cur > MAX_REMAP_PLUGIN_CHAIN) {
+    Error("called %s more than %u times; stopping this remap insanity now", __func__, MAX_REMAP_PLUGIN_CHAIN);
+    return 1;
+  }
+
+  if (_cur >= map->_plugin_count) {
+    // Normally, we would callback into this function but we dont have anything more to do!
+    Debug("url_rewrite", "completed all remap plugins for rule id %d", map->map_id);
+    return 1;
+  }
+
+  Debug("url_rewrite", "completed single remap, attempting another via immediate callback");
+  return 0;
+}
+
+int
+RemapPlugins::run_remap(int event, Event* e)
+{
+  Debug("url_rewrite", "Inside RemapPlugins::run_remap with cur = %d", _cur);
+
+  ink_assert(action.continuation);
+  ink_assert(action.continuation);
+
+  int ret = 0;
+
+  /* make sure we weren't cancelled */
+  if (action.cancelled) {
+    mutex.clear();
+    pluginAllocator.free(this); //ugly
+    return EVENT_DONE;
+  }
+
+  switch (event) {
+  case EVENT_IMMEDIATE:
+    Debug("url_rewrite", "handling immediate event inside RemapPlugins::run_remap");
+    ret = run_single_remap();
+    /**
+     * If ret !=0 then we are done with this processor and we call back into the SM;
+     * otherwise, we call this function again immediately (which really isn't immediate)
+     * thru the eventProcessor, thus forcing another run of run_single_remap() which will
+     * then operate on _request_url, etc performing additional remaps (mainly another plugin run)
+     **/
+    if (ret) {
+      action.continuation->handleEvent(EVENT_REMAP_COMPLETE, NULL);
+      mutex.clear();
+      action.mutex.clear();
+      mutex = NULL;
+      action.mutex = NULL;
+      //THREAD_FREE(this, pluginAllocator, t);
+      pluginAllocator.free(this);       //ugly
+      return EVENT_DONE;
+    } else {
+      e->schedule_imm(event);
+      return EVENT_CONT;
+    }
+
+    break;
+  default:
+    ink_assert(!"unknown event type");
+    break;
+  };
+  return EVENT_DONE;
+}
diff --git a/proxy/http/remap/RemapPlugins.h b/proxy/http/remap/RemapPlugins.h
new file mode 100644
index 00000000..de7e5096
--- /dev/null
+++ b/proxy/http/remap/RemapPlugins.h
@@ -0,0 +1,75 @@
+/** @file
+
+  Declarations for the RemapPlugins class.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * Remap plugins class
+**/
+
+#if !defined (_REMAPPLUGINS_h_)
+#define _REMAPPLUGINS_h_
+
+#include "libts.h"
+#include "I_EventSystem.h"
+#include "RemapProcessor.h"
+#include "api/ts/ts.h"
+#include "api/ts/remap.h"
+#include "RemapPluginInfo.h"
+#include "HttpTransact.h"
+#include "ReverseProxy.h"
+
+/**
+ * A class that represents a queue of plugins to run
+**/
+struct RemapPlugins: public Continuation
+{
+ RemapPlugins()
+   : _cur(0)
+    { }
+
+ RemapPlugins(HttpTransact::State* s, URL* u, HTTPHdr* h, host_hdr_info* hi)
+   : _cur(0), _s(s), _request_url(u), _request_header(h), _hh_ptr(hi)
+    { }
+
+  ~RemapPlugins() { _cur = 0; }
+
+  // Some basic setters
+  void setState(HttpTransact::State* state) { _s = state; }
+  void setRequestUrl(URL* u) { _request_url = u; }
+  void setRequestHeader(HTTPHdr* h) {  _request_header = h; }
+  void setHostHeaderInfo(host_hdr_info* h) { _hh_ptr = h; }
+
+  int run_remap(int event, Event* e);
+  int run_single_remap();
+  TSRemapStatus run_plugin(remap_plugin_info* plugin);
+
+  Action action;
+
+ private:
+  unsigned int _cur;
+  HttpTransact::State * _s;
+  URL *_request_url;
+  HTTPHdr *_request_header;
+  host_hdr_info *_hh_ptr;
+};
+
+#endif
diff --git a/proxy/http/remap/RemapProcessor.cc b/proxy/http/remap/RemapProcessor.cc
new file mode 100644
index 00000000..ca74117f
--- /dev/null
+++ b/proxy/http/remap/RemapProcessor.cc
@@ -0,0 +1,334 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "RemapProcessor.h"
+
+RemapProcessor remapProcessor;
+extern ClassAllocator<RemapPlugins> pluginAllocator;
+
+int
+RemapProcessor::start(int num_threads, size_t stacksize)
+{
+  if (_use_separate_remap_thread)
+    ET_REMAP = eventProcessor.spawn_event_threads(num_threads, "ET_REMAP", stacksize);  // ET_REMAP is a class member
+
+  return 0;
+}
+
+/**
+  Most of this comes from UrlRewrite::Remap(). Generally, all this does
+  is set "map" to the appropriate entry from the global rewrite_table
+  such that we will then have access to the correct url_mapping inside
+  perform_remap.
+
+*/
+bool
+RemapProcessor::setup_for_remap(HttpTransact::State *s)
+{
+  Debug("url_rewrite", "setting up for remap: %p", s);
+  URL *request_url = NULL;
+  bool mapping_found = false;
+  HTTPHdr *request_header = &s->hdr_info.client_request;
+  char **redirect_url = &s->remap_redirect;
+  const char *request_host;
+  int request_host_len;
+  int request_port;
+  bool proxy_request = false;
+
+  s->reverse_proxy = rewrite_table->reverse_proxy;
+  s->url_map.set(s->hdr_info.client_request.m_heap);
+
+  ink_assert(redirect_url != NULL);
+
+  if (unlikely((rewrite_table->num_rules_forward == 0) &&
+               (rewrite_table->num_rules_forward_with_recv_port == 0))) {
+    ink_assert(rewrite_table->forward_mappings.empty() &&
+               rewrite_table->forward_mappings_with_recv_port.empty());
+    Debug("url_rewrite", "[lookup] No forward mappings found; Skipping...");
+    return false;
+  }
+
+  // Since we are called before request validity checking
+  // occurs, make sure that we have both a valid request
+  // header and a valid URL
+  if (unlikely(!request_header || (request_url = request_header->url_get()) == NULL || !request_url->valid())) {
+    Error("NULL or invalid request data");
+    return false;
+  }
+
+  request_host = request_header->host_get(&request_host_len);
+  request_port = request_header->port_get();
+  proxy_request = request_header->is_target_in_url() || ! s->reverse_proxy;
+
+  // Default to empty host.
+  if (!request_host) {
+    request_host = "";
+    request_host_len = 0;
+  }
+
+  Debug("url_rewrite", "[lookup] attempting %s lookup", proxy_request ? "proxy" : "normal");
+
+  if (rewrite_table->num_rules_forward_with_recv_port) {
+    Debug("url_rewrite", "[lookup] forward mappings with recv port found; Using recv port %d",
+          s->client_info.port);
+    if (rewrite_table->forwardMappingWithRecvPortLookup(request_url, s->client_info.port,
+                                                         request_host, request_host_len, s->url_map)) {
+      Debug("url_rewrite", "Found forward mapping with recv port");
+      mapping_found = true;
+    } else if (rewrite_table->num_rules_forward == 0) {
+      ink_assert(rewrite_table->forward_mappings.empty());
+      Debug("url_rewrite", "No forward mappings left");
+      return false;
+    }
+  }
+
+  if (!mapping_found) {
+    mapping_found = rewrite_table->forwardMappingLookup(request_url, request_port, request_host, request_host_len, s->url_map);
+  }
+
+  // If no rules match and we have a host, check empty host rules since
+  // they function as default rules for server requests.
+  // If there's no host, we've already done this.
+  if (!mapping_found && rewrite_table->nohost_rules && request_host_len) {
+    Debug("url_rewrite", "[lookup] nothing matched");
+    mapping_found = rewrite_table->forwardMappingLookup(request_url, 0, "", 0, s->url_map);
+  }
+
+  if (!proxy_request) { // do extra checks on a server request
+
+    // Save this information for later
+    // @amc: why is this done only for requests without a host in the URL?
+    s->hh_info.host_len = request_host_len;
+    s->hh_info.request_host = request_host;
+    s->hh_info.request_port = request_port;
+
+    if (mapping_found) {
+      // Downstream mapping logic (e.g., self::finish_remap())
+      // apparently assumes the presence of the target in the URL, so
+      // we need to copy it. Perhaps it's because it's simpler to just
+      // do the remap on the URL and then fix the field at the end.
+      request_header->set_url_target_from_host_field();
+    }
+  }
+
+  if (mapping_found) {
+    request_header->mark_target_dirty();
+  } else {
+    Debug("url_rewrite", "RemapProcessor::setup_for_remap did not find a mapping");
+  }
+
+  return mapping_found;
+}
+
+bool
+RemapProcessor::finish_remap(HttpTransact::State *s)
+{
+  url_mapping *map = NULL;
+  HTTPHdr *request_header = &s->hdr_info.client_request;
+  URL *request_url = request_header->url_get();
+  char **redirect_url = &s->remap_redirect;
+  char host_hdr_buf[TS_MAX_HOST_NAME_LEN], tmp_referer_buf[4096], tmp_redirect_buf[4096], tmp_buf[2048], *c;
+  const char *remapped_host;
+  int remapped_host_len, remapped_port, tmp;
+  int from_len;
+  bool remap_found = false;
+  referer_info *ri;
+
+  map = s->url_map.getMapping();
+  if (!map) {
+    return false;
+  }
+  // Do fast ACL filtering (it is safe to check map here)
+  rewrite_table->PerformACLFiltering(s, map);
+
+  // Check referer filtering rules
+  if ((s->filter_mask & URL_REMAP_FILTER_REFERER) != 0 && (ri = map->referer_list) != 0) {
+    const char *referer_hdr = 0;
+    int referer_len = 0;
+    bool enabled_flag = map->optional_referer ? true : false;
+
+    if (request_header->presence(MIME_PRESENCE_REFERER) &&
+        (referer_hdr = request_header->value_get(MIME_FIELD_REFERER, MIME_LEN_REFERER, &referer_len)) != NULL) {
+      if (referer_len >= (int) sizeof(tmp_referer_buf))
+        referer_len = (int) (sizeof(tmp_referer_buf) - 1);
+      memcpy(tmp_referer_buf, referer_hdr, referer_len);
+      tmp_referer_buf[referer_len] = 0;
+      for (enabled_flag = false; ri; ri = ri->next) {
+        if (ri->any) {
+          enabled_flag = true;
+          if (!map->negative_referer)
+            break;
+        } else if (ri->regx_valid && (pcre_exec(ri->regx, NULL, tmp_referer_buf, referer_len, 0, 0, NULL, 0) != -1)) {
+          enabled_flag = ri->negative ? false : true;
+          break;
+        }
+      }
+    }
+
+    if (!enabled_flag) {
+      if (!map->default_redirect_url) {
+        if ((s->filter_mask & URL_REMAP_FILTER_REDIRECT_FMT) != 0 && map->redir_chunk_list) {
+          redirect_tag_str *rc;
+          tmp_redirect_buf[(tmp = 0)] = 0;
+          for (rc = map->redir_chunk_list; rc; rc = rc->next) {
+            c = 0;
+            switch (rc->type) {
+            case 's':
+              c = rc->chunk_str;
+              break;
+            case 'r':
+              c = (referer_len && referer_hdr) ? &tmp_referer_buf[0] : 0;
+              break;
+            case 'f':
+            case 't':
+              remapped_host = (rc->type == 'f') ?
+                map->fromURL.string_get_buf(tmp_buf, (int) sizeof(tmp_buf), &from_len) :
+                ((s->url_map).getToURL())->string_get_buf(tmp_buf, (int)sizeof(tmp_buf), &from_len);
+              if (remapped_host && from_len > 0) {
+                c = &tmp_buf[0];
+              }
+              break;
+            case 'o':
+              c = s->pristine_url.string_get_ref(NULL);
+              break;
+            };
+
+            if (c && tmp < (int) (sizeof(tmp_redirect_buf) - 1)) {
+              tmp += snprintf(&tmp_redirect_buf[tmp], sizeof(tmp_redirect_buf) - tmp, "%s", c);
+            }
+          }
+          tmp_redirect_buf[sizeof(tmp_redirect_buf) - 1] = 0;
+          *redirect_url = ats_strdup(tmp_redirect_buf);
+        }
+      } else {
+        *redirect_url = ats_strdup(rewrite_table->http_default_redirect_url);
+      }
+
+      if (*redirect_url == NULL) {
+        *redirect_url = ats_strdup(map->filter_redirect_url ? map->filter_redirect_url :
+                                   rewrite_table->http_default_redirect_url);
+      }
+
+      return false;
+    }
+  }
+
+  remap_found = true;
+
+  // We also need to rewrite the "Host:" header if it exists and
+  //   pristine host hdr is not enabled
+  int host_len;
+  const char *host_hdr = request_header->value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &host_len);
+
+  if (request_url && host_hdr != NULL && s->txn_conf->maintain_pristine_host_hdr == 0) {
+    // Debug code to print out old host header.  This was easier before
+    //  the header conversion.  Now we have to copy to gain null
+    //  termination for the Debug() call
+    if (is_debug_tag_set("url_rewrite")) {
+      int old_host_hdr_len;
+      char *old_host_hdr = (char *) request_header->value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &old_host_hdr_len);
+
+      if (old_host_hdr) {
+        old_host_hdr = ats_strndup(old_host_hdr, old_host_hdr_len);
+        Debug("url_rewrite", "Host: Header before rewrite %.*s", old_host_hdr_len, old_host_hdr);
+        ats_free(old_host_hdr);
+      }
+    }
+    //
+    // Create the new host header field being careful that our
+    //   temporary buffer has adequate length
+    //
+    remapped_host = request_url->host_get(&remapped_host_len);
+    remapped_port = request_url->port_get_raw();
+
+    if (TS_MAX_HOST_NAME_LEN > remapped_host_len) {
+      tmp = remapped_host_len;
+      memcpy(host_hdr_buf, remapped_host, remapped_host_len);
+      if (remapped_port) {
+        tmp += snprintf(host_hdr_buf + remapped_host_len, TS_MAX_HOST_NAME_LEN - remapped_host_len - 1,
+                        ":%d", remapped_port);
+    }
+    } else {
+      tmp = TS_MAX_HOST_NAME_LEN;
+    }
+
+    // It is possible that the hostname is too long.  If it is punt,
+    //   and remove the host header.  If it is too long the HostDB
+    //   won't be able to resolve it and the request will not go
+    //   through
+    if (tmp >= TS_MAX_HOST_NAME_LEN) {
+      request_header->field_delete(MIME_FIELD_HOST, MIME_LEN_HOST);
+      Debug("url_rewrite", "Host: Header too long after rewrite");
+    } else {
+      Debug("url_rewrite", "Host: Header after rewrite %.*s", tmp, host_hdr_buf);
+      request_header->value_set(MIME_FIELD_HOST, MIME_LEN_HOST, host_hdr_buf, tmp);
+    }
+  }
+
+  return remap_found;
+}
+
+Action *
+RemapProcessor::perform_remap(Continuation *cont, HttpTransact::State *s)
+{
+  Debug("url_rewrite", "Beginning RemapProcessor::perform_remap");
+  HTTPHdr *request_header = &s->hdr_info.client_request;
+  URL *request_url = request_header->url_get();
+  url_mapping *map = s->url_map.getMapping();
+  host_hdr_info *hh_info = &(s->hh_info);
+
+  if (!map) {
+    Error("Could not find corresponding url_mapping for this transaction %p", s);
+    Debug("url_rewrite", "Could not find corresponding url_mapping for this transaction");
+    ink_assert(!"this should never happen -- call setup_for_remap first");
+    cont->handleEvent(EVENT_REMAP_ERROR, NULL);
+    return ACTION_RESULT_DONE;
+  }
+
+  if (_use_separate_remap_thread) {
+    RemapPlugins *plugins = pluginAllocator.alloc();
+
+    plugins->setState(s);
+    plugins->setRequestUrl(request_url);
+    plugins->setRequestHeader(request_header);
+    plugins->setHostHeaderInfo(hh_info);
+
+    // Execute "inline" if not using separate remap threads.
+    ink_assert(cont->mutex->thread_holding == this_ethread());
+    plugins->mutex = cont->mutex;
+    plugins->action = cont;
+    SET_CONTINUATION_HANDLER(plugins, &RemapPlugins::run_remap);
+    eventProcessor.schedule_imm(plugins, ET_REMAP);
+
+    return &plugins->action;
+  } else {
+    RemapPlugins plugins(s, request_url, request_header, hh_info);
+    int ret = 0;
+
+    do {
+      ret = plugins.run_single_remap();
+    } while (ret == 0);
+
+    return ACTION_RESULT_DONE;
+  }
+}
diff --git a/proxy/http/remap/RemapProcessor.h b/proxy/http/remap/RemapProcessor.h
new file mode 100644
index 00000000..b525ec3f
--- /dev/null
+++ b/proxy/http/remap/RemapProcessor.h
@@ -0,0 +1,72 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**
+ * Remap plugin processor
+**/
+#if !defined (_REMAPPROCESSOR_h_)
+#define _REMAPPROCESSOR_h_
+
+#include "I_EventSystem.h"
+#include "RemapPlugins.h"
+#include "RemapPluginInfo.h"
+#include "ReverseProxy.h"
+#undef std  // FIXME: remove dependency on the STL
+#include <map>
+
+#define EVENT_REMAP_START             (REMAP_EVENT_EVENTS_START+0)
+#define EVENT_REMAP_ERROR             (REMAP_EVENT_EVENTS_START+1)
+#define EVENT_REMAP_COMPLETE          (REMAP_EVENT_EVENTS_START+2)
+
+class url_mapping;
+
+class RemapProcessor: public Processor
+{
+public:
+
+ RemapProcessor()
+   : ET_REMAP(0), _use_separate_remap_thread(false)
+    { }
+
+  ~RemapProcessor() { }
+
+  bool setup_for_remap(HttpTransact::State * s);
+  bool finish_remap(HttpTransact::State * s);
+
+  Action *perform_remap(Continuation * cont, HttpTransact::State * s);
+  int start(int num_threads, size_t stacksize);
+  bool LessThan(HttpTransact::State *, HttpTransact::State *);
+  void setUseSeparateThread() { _use_separate_remap_thread = true; }
+  bool using_separate_thread() { return _use_separate_remap_thread == true; }
+
+private:
+  EventType ET_REMAP;
+  bool _use_separate_remap_thread;
+};
+
+/**
+ * the global remapProcessor that everyone uses
+**/
+extern RemapProcessor remapProcessor;
+
+#endif
diff --git a/proxy/http/remap/UrlMapping.cc b/proxy/http/remap/UrlMapping.cc
new file mode 100644
index 00000000..5041e64d
--- /dev/null
+++ b/proxy/http/remap/UrlMapping.cc
@@ -0,0 +1,237 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_defs.h"
+#include "UrlMapping.h"
+#include "I_RecCore.h"
+#include "ink_cap.h"
+/**
+ *
+**/
+url_mapping::url_mapping(int rank /* = 0 */)
+  : from_path_len(0), fromURL(), toUrl(), homePageRedirect(false), unique(false), default_redirect_url(false),
+    optional_referer(false), negative_referer(false), wildcard_from_scheme(false),
+    tag(NULL), filter_redirect_url(NULL), referer_list(0),
+    redir_chunk_list(0), filter(NULL), _plugin_count(0), _rank(rank)
+{
+  memset(_plugin_list, 0, sizeof(_plugin_list));
+  memset(_instance_data, 0, sizeof(_instance_data));
+}
+
+
+/**
+ *
+**/
+bool
+url_mapping::add_plugin(remap_plugin_info* i, void* ih)
+{
+  if (_plugin_count >= MAX_REMAP_PLUGIN_CHAIN)
+    return false;
+
+  _plugin_list[_plugin_count] = i;
+  _instance_data[_plugin_count] = ih;
+  ++_plugin_count;
+
+  return true;
+}
+
+
+/**
+ *
+**/
+remap_plugin_info*
+url_mapping::get_plugin(unsigned int index) const
+{
+  Debug("url_rewrite", "get_plugin says we have %d plugins and asking for plugin %d", _plugin_count, index);
+  if ((_plugin_count == 0) || unlikely(index > _plugin_count))
+    return NULL;
+
+  return _plugin_list[index];
+}
+
+/**
+ *
+**/
+void
+url_mapping::delete_instance(unsigned int index)
+{
+  void *ih = get_instance(index);
+  remap_plugin_info* p = get_plugin(index);
+
+  if (ih && p && p->fp_tsremap_delete_instance) {
+    p->fp_tsremap_delete_instance(ih);
+  }
+}
+
+
+/**
+ *
+**/
+url_mapping::~url_mapping()
+{
+  referer_info *r;
+  redirect_tag_str *rc;
+  acl_filter_rule *afr;
+
+  tag = (char *)ats_free_null(tag);
+  filter_redirect_url = (char *)ats_free_null(filter_redirect_url);
+
+  while ((r = referer_list) != 0) {
+    referer_list = r->next;
+    delete r;
+  }
+
+  while ((rc = redir_chunk_list) != 0) {
+    redir_chunk_list = rc->next;
+    delete rc;
+  }
+
+  // Delete all instance data
+  for (unsigned int i = 0; i < _plugin_count; ++i)
+    delete_instance(i);
+
+  // Delete filters
+  while ((afr = filter) != NULL) {
+    filter = afr->next;
+    delete afr;
+  }
+
+  // Destroy the URLs
+  fromURL.destroy();
+  toUrl.destroy();
+}
+
+void
+url_mapping::Print()
+{
+  char from_url_buf[131072], to_url_buf[131072];
+
+  fromURL.string_get_buf(from_url_buf, (int) sizeof(from_url_buf));
+  toUrl.string_get_buf(to_url_buf, (int) sizeof(to_url_buf));
+  printf("\t %s %s=> %s %s <%s> [plugins %s enabled; running with %u plugins]\n", from_url_buf,
+         unique ? "(unique)" : "", to_url_buf,
+         homePageRedirect ? "(R)" : "", tag ? tag : "",
+         _plugin_count > 0 ? "are" : "not", _plugin_count);
+}
+
+/**
+ *
+**/
+redirect_tag_str *
+redirect_tag_str::parse_format_redirect_url(char *url)
+{
+  char *c;
+  redirect_tag_str *r, **rr;
+  redirect_tag_str *list = 0;
+  char type = 0;
+
+  if (url && *url) {
+    for (rr = &list; *(c = url) != 0;) {
+      for (type = 's'; *c; c++) {
+        if (c[0] == '%') {
+          char tmp_type = (char) tolower((int) c[1]);
+          if (tmp_type == 'r' || tmp_type == 'f' || tmp_type == 't' || tmp_type == 'o') {
+            if (url == c)
+              type = tmp_type;
+            break;
+          }
+        }
+      }
+      r = new redirect_tag_str();
+      if (likely(r)) {
+        if ((r->type = type) == 's') {
+          char svd = *c;
+          *c = 0;
+          r->chunk_str = ats_strdup(url);
+          *c = svd;
+          url = c;
+        } else
+          url += 2;
+        (*rr = r)->next = 0;
+        rr = &(r->next);
+        //printf("\t***********'%c' - '%s'*******\n",r->type,r->chunk_str ? r->chunk_str : "<NULL>");
+      } else
+        break;                  /* memory allocation error */
+    }
+  }
+  return list;
+}
+
+
+/**
+ *
+**/
+referer_info::referer_info(char *_ref, bool *error_flag, char *errmsgbuf, int errmsgbuf_size)
+  : next(0),
+    referer(0),
+    referer_size(0),
+    any(false),
+    negative(false),
+    regx_valid(false)
+{
+  const char *error;
+  int erroffset;
+
+  if (error_flag)
+    *error_flag = false;
+  regx = NULL;
+
+  if (_ref) {
+    if (*_ref == '~') {
+      negative = true;
+      _ref++;
+    }
+    if ((referer = ats_strdup(_ref)) != 0) {
+      referer_size = strlen(referer);
+      if (!strcmp(referer, "*"))
+        any = true;
+      else {
+        regx = pcre_compile(referer, PCRE_CASELESS, &error, &erroffset, NULL);
+        if (!regx) {
+          if (errmsgbuf && (errmsgbuf_size - 1) > 0)
+            ink_strlcpy(errmsgbuf, error, errmsgbuf_size);
+          if (error_flag)
+            *error_flag = true;
+        } else
+          regx_valid = true;
+      }
+    }
+  }
+}
+
+
+/**
+ *
+**/
+referer_info::~referer_info()
+{
+  ats_free(referer);
+  referer = 0;
+  referer_size = 0;
+
+  if (regx_valid) {
+    pcre_free(regx);
+    regx = NULL;
+    regx_valid = false;
+  }
+}
diff --git a/proxy/http/remap/UrlMapping.h b/proxy/http/remap/UrlMapping.h
new file mode 100644
index 00000000..4d1340c5
--- /dev/null
+++ b/proxy/http/remap/UrlMapping.h
@@ -0,0 +1,190 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _URL_MAPPING_H_
+#define _URL_MAPPING_H_
+
+#include "AclFiltering.h"
+#include "Main.h"
+#include "Error.h"
+#include "URL.h"
+#include "RemapPluginInfo.h"
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+static const unsigned int MAX_REMAP_PLUGIN_CHAIN = 10;
+
+
+/**
+ * Used to store http referer strings (and/or regexp)
+**/
+class referer_info
+{
+public:
+  referer_info(char *_ref, bool * error_flag = NULL, char *errmsgbuf = NULL, int errmsgbuf_size = 0);
+   ~referer_info();
+  referer_info *next;
+  char *referer;
+  int referer_size;
+  bool any;                     /* any flag '*' */
+  bool negative;                /* negative referer '~' */
+  bool regx_valid;
+  pcre* regx;
+};
+
+/**
+ *
+**/
+class redirect_tag_str
+{
+public:
+   redirect_tag_str()
+     : next(0), chunk_str(NULL), type(0)
+    { }
+
+  ~redirect_tag_str()
+  {
+    type = 0;
+    if (chunk_str) {
+      ats_free(chunk_str);
+      chunk_str = NULL;
+    }
+  }
+
+  redirect_tag_str *next;
+  char *chunk_str;
+  char type;                    /* s - string, r - referer, t - url_to, f - url_from, o - origin url */
+  static redirect_tag_str *parse_format_redirect_url(char *url);
+};
+
+/**
+ * Used to store the mapping for class UrlRewrite
+**/
+class url_mapping
+{
+public:
+  url_mapping(int rank = 0);
+  ~url_mapping();
+
+  bool add_plugin(remap_plugin_info *i, void* ih);
+  remap_plugin_info *get_plugin(unsigned int) const;
+
+  void* get_instance(unsigned int index) const { return _instance_data[index]; };
+  void delete_instance(unsigned int index);
+  void Print();
+
+  int from_path_len;
+  URL fromURL;
+  URL toUrl; // Default TO-URL (from remap.config)
+  bool homePageRedirect;
+  bool unique;                  // INKqa11970 - unique mapping
+  bool default_redirect_url;
+  bool optional_referer;
+  bool negative_referer;
+  bool wildcard_from_scheme;    // from url is '/foo', only http or https for now
+  char *tag;                    // tag
+  char *filter_redirect_url;    // redirect url when referer filtering enabled
+  unsigned int map_id;
+  referer_info *referer_list;
+  redirect_tag_str *redir_chunk_list;
+  acl_filter_rule *filter;      // acl filtering (list of rules)
+  unsigned int _plugin_count;
+  LINK(url_mapping, link); // For use with the main Queue linked list holding all the mapping
+
+  int getRank() const { return _rank; };
+
+private:
+  remap_plugin_info* _plugin_list[MAX_REMAP_PLUGIN_CHAIN];
+  void* _instance_data[MAX_REMAP_PLUGIN_CHAIN];
+  int _rank;
+};
+
+
+/**
+ * UrlMappingContainer wraps a url_mapping object and allows a caller to rewrite the target URL.
+ * This is used while evaluating remap rules.
+**/
+class UrlMappingContainer {
+public:
+ UrlMappingContainer()
+   : _mapping(NULL), _toURLPtr(NULL), _heap(NULL)
+    { }
+
+  explicit UrlMappingContainer(HdrHeap *heap)
+    : _mapping(NULL), _toURLPtr(NULL), _heap(heap)
+  { }
+
+  ~UrlMappingContainer() { deleteToURL(); }
+  
+  URL * getToURL() const { return _toURLPtr; };
+  URL * getFromURL() const { return _mapping ? &(_mapping->fromURL) : NULL; };
+
+  url_mapping *getMapping() const { return _mapping; };
+
+  void set(url_mapping *m) { 
+    deleteToURL();
+    _mapping = m;
+    _toURLPtr = m ? &(m->toUrl) : NULL;
+  }
+
+  void set(HdrHeap *heap) {
+    _heap = heap;
+  }
+
+  URL *createNewToURL() {
+    ink_assert(_heap != NULL);
+    deleteToURL();
+    _toURL.create(_heap);
+    _toURLPtr = &_toURL;
+    return _toURLPtr; 
+  }
+
+  void deleteToURL() {
+    if (_toURLPtr == &_toURL) {
+      _toURL.clear();
+    }
+  }
+
+  void clear() {
+    deleteToURL();
+    _mapping = NULL;
+    _toURLPtr = NULL;
+    _heap = NULL;
+  }
+
+private:
+  url_mapping *_mapping;
+  URL *_toURLPtr;
+  URL _toURL;
+  HdrHeap *_heap;
+  
+  // non-copyable, non-assignable
+  UrlMappingContainer(const UrlMappingContainer &orig);
+  UrlMappingContainer &operator =(const UrlMappingContainer &rhs);
+};
+
+#endif
diff --git a/proxy/http/remap/UrlMappingPathIndex.cc b/proxy/http/remap/UrlMappingPathIndex.cc
new file mode 100644
index 00000000..2a722ad8
--- /dev/null
+++ b/proxy/http/remap/UrlMappingPathIndex.cc
@@ -0,0 +1,92 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#include "UrlMappingPathIndex.h"
+
+UrlMappingPathIndex::~UrlMappingPathIndex()
+{
+  for (UrlMappingGroup::iterator group_iter = m_tries.begin(); group_iter != m_tries.end(); ++group_iter)
+    delete group_iter->second; // Delete the Trie
+  m_tries.clear();
+}
+
+bool
+UrlMappingPathIndex::Insert(url_mapping *mapping)
+{
+  int scheme_idx;
+  int port = (mapping->fromURL).port_get();
+  UrlMappingTrie *trie;
+  int from_path_len;
+  const char *from_path;
+
+  trie = _GetTrie(&(mapping->fromURL), scheme_idx, port);
+
+  if (!trie) {
+    trie = new UrlMappingTrie();
+    m_tries.insert(UrlMappingGroup::value_type(UrlMappingTrieKey(scheme_idx, port), trie));
+    Debug("UrlMappingPathIndex::Insert", "Created new trie for scheme index, port combo <%d, %d>",
+          scheme_idx, port);
+  }
+
+  from_path = mapping->fromURL.path_get(&from_path_len);
+  if (!trie->Insert(from_path, mapping, mapping->getRank(), from_path_len)) {
+    Error("Couldn't insert into trie!");
+    return false;
+  }
+  Debug("UrlMappingPathIndex::Insert", "Inserted new element!");
+  return true;
+}
+
+url_mapping *
+UrlMappingPathIndex::Search(URL *request_url, int request_port, bool normal_search /* = true */) const
+{
+  url_mapping *retval = 0;
+  int scheme_idx;
+  UrlMappingTrie *trie;
+  int path_len;
+  const char *path;
+
+  trie = _GetTrie(request_url, scheme_idx, request_port, normal_search);
+
+  if (!trie) {
+    Debug("UrlMappingPathIndex::Search", "No mappings exist for scheme index, port combo <%d, %d>",
+          scheme_idx, request_port);
+    goto lFail;
+  }
+
+  path = request_url->path_get(&path_len);
+  if (!(retval = trie->Search(path, path_len))) {
+    Debug("UrlMappingPathIndex::Search", "Couldn't find entry for url with path [%.*s]", path_len, path);
+    goto lFail;
+  }
+  return retval;
+
+lFail:
+  return 0;
+}
+
+void
+UrlMappingPathIndex::Print()
+{
+  for (UrlMappingGroup::iterator group_iter = m_tries.begin(); group_iter != m_tries.end(); ++group_iter)
+    group_iter->second->Print();
+}
diff --git a/proxy/http/remap/UrlMappingPathIndex.h b/proxy/http/remap/UrlMappingPathIndex.h
new file mode 100644
index 00000000..fefd62c6
--- /dev/null
+++ b/proxy/http/remap/UrlMappingPathIndex.h
@@ -0,0 +1,98 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+#ifndef _URL_MAPPING_PATH_INDEX_H
+#define _URL_MAPPING_PATH_INDEX_H
+
+#include "libts.h"
+#undef std  // FIXME: remove dependancy on the STL
+#include <map>
+
+#include "URL.h"
+#include "UrlMapping.h"
+#include "Trie.h"
+
+class UrlMappingPathIndex
+{
+public:
+  UrlMappingPathIndex()
+  { }
+
+  virtual ~UrlMappingPathIndex();
+  bool Insert(url_mapping *mapping);
+  url_mapping* Search(URL *request_url, int request_port, bool normal_search = true) const;
+  void Print();
+
+private:
+  typedef Trie<url_mapping> UrlMappingTrie;
+
+  struct UrlMappingTrieKey {
+    int scheme_wks_idx;
+    int port;
+
+    UrlMappingTrieKey(int idx, int p)
+      : scheme_wks_idx(idx), port(p)
+    { }
+    
+    bool operator <(const UrlMappingTrieKey &rhs) const {
+      if (scheme_wks_idx == rhs.scheme_wks_idx) {
+        return (port < rhs.port);
+      }
+      return (scheme_wks_idx < rhs.scheme_wks_idx);
+    }
+  };
+
+  typedef std::map<UrlMappingTrieKey, UrlMappingTrie *> UrlMappingGroup;
+  UrlMappingGroup m_tries;
+
+  // make copy-constructor and assignment operator private
+  // till we properly implement them
+  UrlMappingPathIndex(const UrlMappingPathIndex & /* rhs ATS_UNUSED */) { };
+  UrlMappingPathIndex &operator =(const UrlMappingPathIndex & /* rhs ATS_UNUSED */) { return *this; }
+
+  inline UrlMappingTrie *
+  _GetTrie(URL *url, int &idx, int port, bool search = true) const {
+    idx = url->scheme_get_wksidx();
+    // If the scheme is empty (e.g. because of a CONNECT method), guess it
+    // based on port
+    if (idx == -1) {
+        if (port == 80) {
+            idx = URL_WKSIDX_HTTP;
+        } else {
+            idx = URL_WKSIDX_HTTPS;
+        }
+    }
+    UrlMappingGroup::const_iterator group_iter;
+    if (search) { // normal search
+      group_iter = m_tries.find(UrlMappingTrieKey(idx, port));
+    } else { // return the first trie arbitrarily
+      Debug("UrlMappingPathIndex::_GetTrie", "Not performing search; will return first available trie");
+      group_iter = m_tries.begin();
+    }
+    if (group_iter != m_tries.end()) {
+      return group_iter->second;
+    }
+    return 0;
+  }
+};
+
+#endif // _URL_MAPPING_PATH_INDEX_H
diff --git a/proxy/http/remap/UrlRewrite.cc b/proxy/http/remap/UrlRewrite.cc
new file mode 100644
index 00000000..549add61
--- /dev/null
+++ b/proxy/http/remap/UrlRewrite.cc
@@ -0,0 +1,984 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "UrlRewrite.h"
+#include "ProxyConfig.h"
+#include "ReverseProxy.h"
+#include "UrlMappingPathIndex.h"
+#include "RemapConfig.h"
+#include "I_Layout.h"
+
+#define modulePrefix "[ReverseProxy]"
+
+/**
+  Determines where we are in a situation where a virtual path is
+  being mapped to a server home page. If it is, we set a special flag
+  instructing us to be on the lookout for the need to send a redirect
+  to if the request URL is a object, opposed to a directory. We need
+  the redirect for an object so that the browser is aware that it is
+  real accessing a directory (albeit a virtual one).
+
+*/
+static void
+SetHomePageRedirectFlag(url_mapping *new_mapping, URL &new_to_url)
+{
+  int fromLen, toLen;
+  const char *from_path = new_mapping->fromURL.path_get(&fromLen);
+  const char *to_path = new_to_url.path_get(&toLen);
+
+  new_mapping->homePageRedirect = (from_path && !to_path) ? true : false;
+}
+
+//
+// CTOR / DTOR for the UrlRewrite class.
+//
+UrlRewrite::UrlRewrite()
+ : nohost_rules(0), reverse_proxy(0), backdoor_enabled(0),
+   mgmt_autoconf_port(0), default_to_pac(0), default_to_pac_port(0), ts_name(NULL),
+   http_default_redirect_url(NULL), num_rules_forward(0), num_rules_reverse(0), num_rules_redirect_permanent(0),
+   num_rules_redirect_temporary(0), num_rules_forward_with_recv_port(0), _valid(false)
+{
+
+  forward_mappings.hash_lookup = reverse_mappings.hash_lookup =
+    permanent_redirects.hash_lookup = temporary_redirects.hash_lookup =
+    forward_mappings_with_recv_port.hash_lookup = NULL;
+
+  char * config_file = NULL;
+  char * config_file_path = NULL;
+
+  REC_ReadConfigStringAlloc(config_file, "proxy.config.url_remap.filename");
+  if (config_file == NULL) {
+    pmgmt->signalManager(MGMT_SIGNAL_CONFIG_ERROR, "Unable to find proxy.config.url_remap.filename");
+    Warning("%s Unable to locate remap.config.  No remappings in effect", modulePrefix);
+    return;
+  }
+
+  this->ts_name = NULL;
+  REC_ReadConfigStringAlloc(this->ts_name, "proxy.config.proxy_name");
+  if (this->ts_name == NULL) {
+    pmgmt->signalManager(MGMT_SIGNAL_CONFIG_ERROR, "Unable to read proxy.config.proxy_name");
+    Warning("%s Unable to determine proxy name.  Incorrect redirects could be generated", modulePrefix);
+    this->ts_name = ats_strdup("");
+  }
+
+  this->http_default_redirect_url = NULL;
+  REC_ReadConfigStringAlloc(this->http_default_redirect_url, "proxy.config.http.referer_default_redirect");
+  if (this->http_default_redirect_url == NULL) {
+    pmgmt->signalManager(MGMT_SIGNAL_CONFIG_ERROR, "Unable to read proxy.config.http.referer_default_redirect");
+    Warning("%s Unable to determine default redirect url for \"referer\" filter.", modulePrefix);
+    this->http_default_redirect_url = ats_strdup("http://www.apache.org");
+  }
+
+  REC_ReadConfigInteger(reverse_proxy, "proxy.config.reverse_proxy.enabled");
+  REC_ReadConfigInteger(mgmt_autoconf_port, "proxy.config.admin.autoconf_port");
+  REC_ReadConfigInteger(default_to_pac, "proxy.config.url_remap.default_to_server_pac");
+  REC_ReadConfigInteger(default_to_pac_port, "proxy.config.url_remap.default_to_server_pac_port");
+  REC_ReadConfigInteger(url_remap_mode, "proxy.config.url_remap.url_remap_mode");
+  REC_ReadConfigInteger(backdoor_enabled, "proxy.config.url_remap.handle_backdoor_urls");
+
+  config_file_path = Layout::relative_to(Layout::get()->sysconfdir, config_file);
+
+  if (0 == this->BuildTable(config_file_path)) {
+    _valid = true;
+    if (is_debug_tag_set("url_rewrite")) {
+      Print();
+    }
+  } else {
+    Warning("something failed during BuildTable() -- check your remap plugins!");
+  }
+
+  ats_free(config_file_path);
+  ats_free(config_file);
+}
+
+UrlRewrite::~UrlRewrite()
+{
+  ats_free(this->ts_name);
+  ats_free(this->http_default_redirect_url);
+
+  DestroyStore(forward_mappings);
+  DestroyStore(reverse_mappings);
+  DestroyStore(permanent_redirects);
+  DestroyStore(temporary_redirects);
+  DestroyStore(forward_mappings_with_recv_port);
+  _valid = false;
+}
+
+/** Sets the reverse proxy flag. */
+void
+UrlRewrite::SetReverseFlag(int flag)
+{
+  reverse_proxy = flag;
+  if (is_debug_tag_set("url_rewrite"))
+    Print();
+}
+
+/**
+  Allocaites via new, and setups the default mapping to the PAC generator
+  port which is used to serve the PAC (proxy autoconfig) file.
+
+*/
+url_mapping *
+UrlRewrite::SetupPacMapping()
+{
+  const char *from_url = "http:///";
+  const char *local_url = "http://127.0.0.1/";
+
+  url_mapping *mapping;
+  int pac_generator_port;
+
+  mapping = new url_mapping;
+
+  mapping->fromURL.create(NULL);
+  mapping->fromURL.parse(from_url, strlen(from_url));
+
+  mapping->toUrl.create(NULL);
+  mapping->toUrl.parse(local_url, strlen(local_url));
+
+  pac_generator_port = (default_to_pac_port < 0) ? mgmt_autoconf_port : default_to_pac_port;
+
+  mapping->toUrl.port_set(pac_generator_port);
+
+  return mapping;
+}
+
+/**
+  Allocaites via new, and adds a mapping like this map /ink/rh
+  http://{backdoor}/ink/rh
+
+  These {backdoor} things are then rewritten in a request-hdr hook.  (In the
+  future it might make sense to move the rewriting into HttpSM directly.)
+
+*/
+url_mapping *
+UrlRewrite::SetupBackdoorMapping()
+{
+  const char from_url[] = "/ink/rh";
+  const char to_url[] = "http://{backdoor}/ink/rh";
+
+  url_mapping *mapping = new url_mapping;
+
+  mapping->fromURL.create(NULL);
+  mapping->fromURL.parse(from_url, sizeof(from_url) - 1);
+  mapping->fromURL.scheme_set(URL_SCHEME_HTTP, URL_LEN_HTTP);
+
+  mapping->toUrl.create(NULL);
+  mapping->toUrl.parse(to_url, sizeof(to_url) - 1);
+
+  return mapping;
+}
+
+/** Deallocated a hash table and all the url_mappings in it. */
+void
+UrlRewrite::_destroyTable(InkHashTable *h_table)
+{
+  InkHashTableEntry *ht_entry;
+  InkHashTableIteratorState ht_iter;
+  UrlMappingPathIndex *item;
+
+  if (h_table != NULL) {        // Iterate over the hash tabel freeing up the all the url_mappings
+    //   contained with in
+    for (ht_entry = ink_hash_table_iterator_first(h_table, &ht_iter); ht_entry != NULL;) {
+      item = (UrlMappingPathIndex *)ink_hash_table_entry_value(h_table, ht_entry);
+      delete item;
+      ht_entry = ink_hash_table_iterator_next(h_table, &ht_iter);
+    }
+    ink_hash_table_destroy(h_table);
+  }
+}
+
+/** Debugging Method. */
+void
+UrlRewrite::Print()
+{
+  printf("URL Rewrite table with %d entries\n", num_rules_forward + num_rules_reverse +
+         num_rules_redirect_temporary + num_rules_redirect_permanent + num_rules_forward_with_recv_port);
+  printf("  Reverse Proxy is %s\n", (reverse_proxy == 0) ? "Off" : "On");
+
+  printf("  Forward Mapping Table with %d entries\n", num_rules_forward);
+  PrintStore(forward_mappings);
+
+  printf("  Reverse Mapping Table with %d entries\n", num_rules_reverse);
+  PrintStore(reverse_mappings);
+
+  printf("  Permanent Redirect Mapping Table with %d entries\n", num_rules_redirect_permanent);
+  PrintStore(permanent_redirects);
+
+  printf("  Temporary Redirect Mapping Table with %d entries\n", num_rules_redirect_temporary);
+  PrintStore(temporary_redirects);
+
+  printf("  Forward Mapping With Recv Port Table with %d entries\n", num_rules_forward_with_recv_port);
+  PrintStore(forward_mappings_with_recv_port);
+
+  if (http_default_redirect_url != NULL) {
+    printf("  Referer filter default redirect URL: \"%s\"\n", http_default_redirect_url);
+  }
+}
+
+/** Debugging method. */
+void
+UrlRewrite::PrintStore(MappingsStore &store)
+{
+  if (store.hash_lookup != NULL) {
+    InkHashTableEntry *ht_entry;
+    InkHashTableIteratorState ht_iter;
+    UrlMappingPathIndex *value;
+
+    for (ht_entry = ink_hash_table_iterator_first(store.hash_lookup, &ht_iter); ht_entry != NULL;) {
+      value = (UrlMappingPathIndex *) ink_hash_table_entry_value(store.hash_lookup, ht_entry);
+      value->Print();
+      ht_entry = ink_hash_table_iterator_next(store.hash_lookup, &ht_iter);
+    }
+  }
+
+  if (!store.regex_list.empty()) {
+    printf("    Regex mappings:\n");
+    forl_LL(RegexMapping, list_iter, store.regex_list) {
+      list_iter->url_map->Print();
+    }
+  }
+}
+
+/**
+  If a remapping is found, returns a pointer to it otherwise NULL is
+  returned.
+
+*/
+url_mapping *
+UrlRewrite::_tableLookup(InkHashTable *h_table, URL *request_url,
+                        int request_port, char *request_host, int request_host_len)
+{
+  UrlMappingPathIndex *ht_entry;
+  url_mapping *um = NULL;
+  int ht_result;
+
+  ht_result = ink_hash_table_lookup(h_table, request_host, (void **) &ht_entry);
+
+  if (likely(ht_result && ht_entry)) {
+    // for empty host don't do a normal search, get a mapping arbitrarily
+    um = ht_entry->Search(request_url, request_port, request_host_len ? true : false);
+  }
+  return um;
+}
+
+// This is only used for redirects and reverse rules, and the homepageredirect flag
+// can never be set. The end result is that request_url is modified per remap container.
+void
+url_rewrite_remap_request(const UrlMappingContainer& mapping_container, URL *request_url)
+{
+  const char *requestPath;
+  int requestPathLen;
+  int fromPathLen;
+
+  URL *map_to = mapping_container.getToURL();
+  URL *map_from = mapping_container.getFromURL();
+  const char *toHost;
+  const char *toPath;
+  const char *toScheme;
+  int toPathLen;
+  int toHostLen;
+  int toSchemeLen;
+
+  map_from->path_get(&fromPathLen);
+
+  toHost = map_to->host_get(&toHostLen);
+  toPath = map_to->path_get(&toPathLen);
+  toScheme = map_to->scheme_get(&toSchemeLen);
+
+  Debug("url_rewrite", "%s: Remapping rule id: %d matched", __func__, mapping_container.getMapping()->map_id);
+
+  request_url->host_set(toHost, toHostLen);
+  request_url->port_set(map_to->port_get_raw());
+  request_url->scheme_set(toScheme, toSchemeLen);
+
+  requestPath = request_url->path_get(&requestPathLen);
+
+  // Should be +3, little extra padding won't hurt. Use the stack allocation
+  // for better performance (bummer that arrays of variable length is not supported
+  // on Solaris CC.
+  char *newPath = static_cast<char*>(alloca(sizeof(char*)*((requestPathLen - fromPathLen) + toPathLen + 8)));
+  int newPathLen = 0;
+
+  *newPath = 0;
+  if (toPath) {
+    memcpy(newPath, toPath, toPathLen);
+    newPathLen += toPathLen;
+  }
+
+  // We might need to insert a trailing slash in the new portion of the path
+  // if more will be added and none is present and one will be needed.
+  if (!fromPathLen && requestPathLen && toPathLen && *(newPath + newPathLen - 1) != '/') {
+    *(newPath + newPathLen) = '/';
+    newPathLen++;
+  }
+
+  if (requestPath) {
+    //avoid adding another trailing slash if the requestPath already had one and so does the toPath
+    if (requestPathLen < fromPathLen) {
+      if (toPathLen && requestPath[requestPathLen - 1] == '/' && toPath[toPathLen - 1] == '/') {
+        fromPathLen++;
+      }
+    } else {
+      if (toPathLen && requestPath[fromPathLen] == '/' && toPath[toPathLen - 1] == '/') {
+        fromPathLen++;
+      }
+    }
+
+    // copy the end of the path past what has been mapped
+    if ((requestPathLen - fromPathLen) > 0) {
+      memcpy(newPath + newPathLen, requestPath + fromPathLen, requestPathLen - fromPathLen);
+      newPathLen += (requestPathLen - fromPathLen);
+    }
+  }
+
+  // Skip any leading / in the path when setting the new URL path
+  if (*newPath == '/') {
+    request_url->path_set(newPath + 1, newPathLen - 1);
+  } else {
+    request_url->path_set(newPath, newPathLen);
+  }
+}
+
+/** Used to do the backwards lookups. */
+#define N_URL_HEADERS 4
+bool
+UrlRewrite::ReverseMap(HTTPHdr *response_header)
+{
+  const char *location_hdr;
+  URL location_url;
+  int loc_length;
+  bool remap_found = false;
+  const char *host;
+  int host_len;
+  char *new_loc_hdr;
+  int new_loc_length;
+  int i;
+  const struct {
+    const char *const field;
+    const int len;
+  } url_headers[N_URL_HEADERS] = {
+    { MIME_FIELD_LOCATION, MIME_LEN_LOCATION } ,
+    { MIME_FIELD_CONTENT_LOCATION, MIME_LEN_CONTENT_LOCATION } ,
+    { "URI", 3 } ,
+    { "Destination", 11 }
+  };
+
+  if (unlikely(num_rules_reverse == 0)) {
+    ink_assert(reverse_mappings.empty());
+    return false;
+  }
+
+  for (i = 0; i < N_URL_HEADERS; ++i) {
+    location_hdr = response_header->value_get(url_headers[i].field, url_headers[i].len, &loc_length);
+
+    if (location_hdr == NULL) {
+      continue;
+    }
+
+    location_url.create(NULL);
+    location_url.parse(location_hdr, loc_length);
+
+    host = location_url.host_get(&host_len);
+
+    UrlMappingContainer reverse_mapping(response_header->m_heap);
+
+    if (reverseMappingLookup(&location_url, location_url.port_get(), host, host_len, reverse_mapping)) {
+      if (i == 0)
+        remap_found = true;
+      url_rewrite_remap_request(reverse_mapping, &location_url);
+      new_loc_hdr = location_url.string_get_ref(&new_loc_length);
+      response_header->value_set(url_headers[i].field, url_headers[i].len, new_loc_hdr, new_loc_length);
+    }
+
+    location_url.destroy();
+  }
+  return remap_found;
+}
+
+/** Perform fast ACL filtering. */
+void
+UrlRewrite::PerformACLFiltering(HttpTransact::State *s, url_mapping *map)
+{
+  if (unlikely(!s || s->acl_filtering_performed || !s->client_connection_enabled))
+    return;
+
+  s->acl_filtering_performed = true;    // small protection against reverse mapping
+
+  if (map->filter) {
+    int res;
+    int method = s->hdr_info.client_request.method_get_wksidx();
+    int method_wksidx = (method != -1) ? (method - HTTP_WKSIDX_CONNECT) : -1;
+    bool client_enabled_flag = true;
+    ink_release_assert(ats_is_ip(&s->client_info.addr));
+    for (acl_filter_rule * rp = map->filter; rp; rp = rp->next) {
+      bool match = true;
+      if (rp->method_restriction_enabled) {
+        if (method_wksidx != -1) {
+          match = rp->standard_method_lookup[method_wksidx];
+        }
+        else if (!rp->nonstandard_methods.empty()) {
+          int method_str_len;
+          const char *method_str = s->hdr_info.client_request.method_get(&method_str_len);
+          match = rp->nonstandard_methods.count(std::string(method_str, method_str_len));
+        }
+      }
+      if (match && rp->src_ip_valid) {
+        match = false;
+        for (int j = 0; j < rp->src_ip_cnt && !match; j++) {
+          res = rp->src_ip_array[j].contains(s->client_info.addr) ? 1 : 0;
+          if (rp->src_ip_array[j].invert) {
+            if (res != 1)
+              match = true;
+          } else {
+            if (res == 1)
+              match = true;
+          }
+        }
+      }
+      if (match && client_enabled_flag) {     //make sure that a previous filter did not DENY
+        Debug("url_rewrite", "matched ACL filter rule, %s request", rp->allow_flag ? "allowing" : "denying");
+        client_enabled_flag = rp->allow_flag ? true : false;
+      } else {
+        if (!client_enabled_flag) {
+          Debug("url_rewrite", "Previous ACL filter rule denied request, continuing to deny it");
+        } else {
+          Debug("url_rewrite", "did NOT match ACL filter rule, %s request", rp->allow_flag ? "denying" : "allowing");
+          client_enabled_flag = rp->allow_flag ? false : true;
+        }
+      }
+      
+    }                         /* end of for(rp = map->filter;rp;rp = rp->next) */
+    s->client_connection_enabled = client_enabled_flag;
+  }
+}
+
+/**
+   Determines if a redirect is to occur and if so, figures out what the
+   redirect is. This was plaguiarized from UrlRewrite::Remap. redirect_url
+   ought to point to the new, mapped URL when the function exits.
+*/
+mapping_type
+UrlRewrite::Remap_redirect(HTTPHdr *request_header, URL *redirect_url)
+{
+  URL *request_url;
+  mapping_type mappingType;
+  const char *host = NULL;
+  int host_len = 0, request_port = 0;
+  bool prt, trt;                        // existence of permanent and temporary redirect tables, respectively
+
+  prt = (num_rules_redirect_permanent != 0);
+  trt = (num_rules_redirect_temporary != 0);
+
+  if (prt + trt == 0)
+    return NONE;
+
+  // Since are called before request validity checking
+  //  occurs, make sure that we have both a valid request
+  //  header and a valid URL
+  //
+  if (request_header == NULL) {
+    Debug("url_rewrite", "request_header was invalid.  UrlRewrite::Remap_redirect bailing out.");
+    return NONE;
+  }
+  request_url = request_header->url_get();
+  if (!request_url->valid()) {
+    Debug("url_rewrite", "request_url was invalid.  UrlRewrite::Remap_redirect bailing out.");
+    return NONE;
+  }
+
+  host = request_url->host_get(&host_len);
+  request_port = request_url->port_get();
+
+  if (host_len == 0 && reverse_proxy != 0) {    // Server request.  Use the host header to figure out where
+                                                // it goes.  Host header parsing is same as in ::Remap
+    int host_hdr_len;
+    const char *host_hdr = request_header->value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &host_hdr_len);
+
+    if (!host_hdr) {
+      host_hdr = "";
+      host_hdr_len = 0;
+    }
+
+    const char *tmp = (const char *) memchr(host_hdr, ':', host_hdr_len);
+
+    if (tmp == NULL) {
+      host_len = host_hdr_len;
+    } else {
+      host_len = tmp - host_hdr;
+      request_port = ink_atoi(tmp + 1, host_hdr_len - host_len);
+
+      // If atoi fails, try the default for the
+      //   protocol
+      if (request_port == 0) {
+        request_port = request_url->port_get();
+      }
+    }
+
+    host = host_hdr;
+  }
+  // Temporary Redirects have precedence over Permanent Redirects
+  // the rationale behind this is that network administrators might
+  // want quick redirects and not want to worry about all the existing
+  // permanent rules
+  mappingType = NONE;
+
+  UrlMappingContainer redirect_mapping(request_header->m_heap);
+
+  if (trt) {
+    if (temporaryRedirectLookup(request_url, request_port, host, host_len, redirect_mapping)) {
+      mappingType = TEMPORARY_REDIRECT;
+    }
+  }
+  if ((mappingType == NONE) && prt) {
+    if (permanentRedirectLookup(request_url, request_port, host, host_len, redirect_mapping)) {
+      mappingType = PERMANENT_REDIRECT;
+    }
+  }
+
+  if (mappingType != NONE) {
+    ink_assert((mappingType == PERMANENT_REDIRECT) || (mappingType == TEMPORARY_REDIRECT));
+
+    // Make a copy of the request url so that we can munge it
+    //   for the redirect
+    redirect_url->create(NULL);
+    redirect_url->copy(request_url);
+
+    // Perform the actual URL rewrite
+    url_rewrite_remap_request(redirect_mapping, redirect_url);
+
+    return mappingType;
+  }
+  ink_assert(mappingType == NONE);
+
+  return NONE;
+}
+
+bool
+UrlRewrite::_addToStore(MappingsStore &store, url_mapping *new_mapping, RegexMapping *reg_map,
+                        const char * src_host, bool is_cur_mapping_regex, int &count)
+{
+  bool retval;
+  if (is_cur_mapping_regex) {
+    store.regex_list.enqueue(reg_map);
+    retval = true;
+  } else {
+    retval = TableInsert(store.hash_lookup, new_mapping, src_host);
+  }
+  if (retval) {
+    ++count;
+  }
+  return retval;
+}
+
+bool
+UrlRewrite::InsertMapping(mapping_type maptype, url_mapping *new_mapping, RegexMapping *reg_map,
+                        const char * src_host, bool is_cur_mapping_regex)
+{
+  bool success = false;
+
+  // Now add the mapping to appropriate container
+  switch (maptype) {
+  case FORWARD_MAP:
+  case FORWARD_MAP_REFERER:
+    success = _addToStore(forward_mappings, new_mapping, reg_map, src_host,
+                                  is_cur_mapping_regex, num_rules_forward);
+    if (success) {
+      // @todo: is this applicable to regex mapping too?
+      SetHomePageRedirectFlag(new_mapping, new_mapping->toUrl);
+    }
+    break;
+  case REVERSE_MAP:
+    success = _addToStore(reverse_mappings, new_mapping, reg_map, src_host,
+                             is_cur_mapping_regex, num_rules_reverse);
+    new_mapping->homePageRedirect = false;
+    break;
+  case PERMANENT_REDIRECT:
+    success = _addToStore(permanent_redirects, new_mapping, reg_map, src_host,
+                             is_cur_mapping_regex, num_rules_redirect_permanent);
+    break;
+  case TEMPORARY_REDIRECT:
+    success = _addToStore(temporary_redirects, new_mapping, reg_map, src_host,
+                             is_cur_mapping_regex, num_rules_redirect_temporary);
+    break;
+  case FORWARD_MAP_WITH_RECV_PORT:
+    success = _addToStore(forward_mappings_with_recv_port, new_mapping, reg_map, src_host,
+                             is_cur_mapping_regex, num_rules_forward_with_recv_port);
+    break;
+  default:
+    // 'default' required to avoid compiler warning; unsupported map
+    // type would have been dealt with much before this
+    return false;
+  }
+
+  return success;
+}
+
+bool
+UrlRewrite::InsertForwardMapping(mapping_type maptype, url_mapping * mapping, const char * src_host)
+{
+  bool success;
+
+  if (maptype == FORWARD_MAP_WITH_RECV_PORT) {
+    success = TableInsert(forward_mappings_with_recv_port.hash_lookup, mapping, src_host);
+  } else {
+    success = TableInsert(forward_mappings.hash_lookup, mapping, src_host);
+  }
+
+  if (success) {
+    switch (maptype) {
+      case FORWARD_MAP:
+      case FORWARD_MAP_REFERER:
+      case FORWARD_MAP_WITH_RECV_PORT:
+        SetHomePageRedirectFlag(mapping, mapping->toUrl);
+        break;
+      default:
+        break;
+    }
+
+    (maptype != FORWARD_MAP_WITH_RECV_PORT) ? ++num_rules_forward
+                                            : ++num_rules_forward_with_recv_port;
+  }
+
+  return success;
+}
+
+/**
+  Reads the configuration file and creates a new hash table.
+
+  @return zero on success and non-zero on failure.
+
+*/
+int
+UrlRewrite::BuildTable(const char * path)
+{
+  BUILD_TABLE_INFO bti;
+  url_mapping * new_mapping = NULL;
+
+  ink_assert(forward_mappings.empty());
+  ink_assert(reverse_mappings.empty());
+  ink_assert(permanent_redirects.empty());
+  ink_assert(temporary_redirects.empty());
+  ink_assert(forward_mappings_with_recv_port.empty());
+  ink_assert(num_rules_forward == 0);
+  ink_assert(num_rules_reverse == 0);
+  ink_assert(num_rules_redirect_permanent == 0);
+  ink_assert(num_rules_redirect_temporary == 0);
+  ink_assert(num_rules_forward_with_recv_port == 0);
+
+
+  forward_mappings.hash_lookup = ink_hash_table_create(InkHashTableKeyType_String);
+  reverse_mappings.hash_lookup = ink_hash_table_create(InkHashTableKeyType_String);
+  permanent_redirects.hash_lookup = ink_hash_table_create(InkHashTableKeyType_String);
+  temporary_redirects.hash_lookup = ink_hash_table_create(InkHashTableKeyType_String);
+  forward_mappings_with_recv_port.hash_lookup = ink_hash_table_create(InkHashTableKeyType_String);
+
+  if (!remap_parse_config(path, this)) {
+    // XXX handle file reload error
+    return 3;
+  }
+
+  // Add the mapping for backdoor urls if enabled.
+  // This needs to be before the default PAC mapping for ""
+  // since this is more specific
+  if (unlikely(backdoor_enabled)) {
+    new_mapping = SetupBackdoorMapping();
+    if (TableInsert(forward_mappings.hash_lookup, new_mapping, "")) {
+      num_rules_forward++;
+    } else {
+      Warning("Could not insert backdoor mapping into store");
+      delete new_mapping;
+      return 3;
+    }
+  }
+  // Add the default mapping to the manager PAC file
+  //  if we need it
+  if (default_to_pac) {
+    new_mapping = SetupPacMapping();
+    if (TableInsert(forward_mappings.hash_lookup, new_mapping, "")) {
+      num_rules_forward++;
+    } else {
+      Warning("Could not insert pac mapping into store");
+      delete new_mapping;
+      return 3;
+    }
+  }
+  // Destroy unused tables
+  if (num_rules_forward == 0) {
+    forward_mappings.hash_lookup = ink_hash_table_destroy(forward_mappings.hash_lookup);
+  } else {
+    if (ink_hash_table_isbound(forward_mappings.hash_lookup, "")) {
+      nohost_rules = 1;
+    }
+  }
+
+  if (num_rules_reverse == 0) {
+    reverse_mappings.hash_lookup = ink_hash_table_destroy(reverse_mappings.hash_lookup);
+  }
+
+  if (num_rules_redirect_permanent == 0) {
+    permanent_redirects.hash_lookup = ink_hash_table_destroy(permanent_redirects.hash_lookup);
+  }
+
+  if (num_rules_redirect_temporary == 0) {
+    temporary_redirects.hash_lookup = ink_hash_table_destroy(temporary_redirects.hash_lookup);
+  }
+
+  if (num_rules_forward_with_recv_port == 0) {
+    forward_mappings_with_recv_port.hash_lookup = ink_hash_table_destroy(
+      forward_mappings_with_recv_port.hash_lookup);
+  }
+
+  return 0;
+}
+
+/**
+  Inserts arg mapping in h_table with key src_host chaining the mapping
+  of existing entries bound to src_host if necessary.
+
+*/
+bool
+UrlRewrite::TableInsert(InkHashTable *h_table, url_mapping *mapping, const char *src_host)
+{
+  char src_host_tmp_buf[1];
+  UrlMappingPathIndex *ht_contents;
+
+  if (!src_host) {
+    src_host = &src_host_tmp_buf[0];
+    src_host_tmp_buf[0] = 0;
+  }
+  // Insert the new_mapping into hash table
+  if (ink_hash_table_lookup(h_table, src_host, (void**) &ht_contents)) {
+    // There is already a path index for this host
+    if (ht_contents == NULL) {
+      // why should this happen?
+      Warning("Found entry cannot be null!");
+      return false;
+    }
+  } else {
+    ht_contents = new UrlMappingPathIndex();
+    ink_hash_table_insert(h_table, src_host, ht_contents);
+  }
+  if (!ht_contents->Insert(mapping)) {
+    Warning("Could not insert new mapping");
+    return false;
+  }
+  return true;
+}
+
+/**  First looks up the hash table for "simple" mappings and then the
+     regex mappings.  Only higher-ranked regex mappings are examined if
+     a hash mapping is found; or else all regex mappings are examined
+
+     Returns highest-ranked mapping on success, NULL on failure
+*/
+bool
+UrlRewrite::_mappingLookup(MappingsStore &mappings, URL *request_url,
+                           int request_port, const char *request_host, int request_host_len,
+                           UrlMappingContainer &mapping_container)
+{
+  char request_host_lower[TS_MAX_HOST_NAME_LEN];
+
+  if (!request_host || !request_url ||
+      (request_host_len < 0) || (request_host_len >= TS_MAX_HOST_NAME_LEN)) {
+    Debug("url_rewrite", "Invalid arguments!");
+    return false;
+  }
+
+  // lowercase
+  for (int i = 0; i < request_host_len; ++i) {
+    request_host_lower[i] = tolower(request_host[i]);
+  }
+  request_host_lower[request_host_len] = 0;
+
+  bool retval = false;
+  int rank_ceiling = -1;
+  url_mapping *mapping = _tableLookup(mappings.hash_lookup, request_url, request_port, request_host_lower,
+                                      request_host_len);
+  if (mapping != NULL) {
+    rank_ceiling = mapping->getRank();
+    Debug("url_rewrite", "Found 'simple' mapping with rank %d", rank_ceiling);
+    mapping_container.set(mapping);
+    retval = true;
+  }
+  if (_regexMappingLookup(mappings.regex_list, request_url, request_port, request_host_lower, request_host_len,
+                          rank_ceiling, mapping_container)) {
+    Debug("url_rewrite", "Using regex mapping with rank %d", (mapping_container.getMapping())->getRank());
+    retval = true;
+  }
+  return retval;
+}
+
+// does not null terminate return string
+int
+UrlRewrite::_expandSubstitutions(int *matches_info, const RegexMapping *reg_map,
+                                 const char *matched_string,
+                                 char *dest_buf, int dest_buf_size)
+{
+  int cur_buf_size = 0;
+  int token_start = 0;
+  int n_bytes_needed;
+  int match_index;
+  for (int i = 0; i < reg_map->n_substitutions; ++i) {
+    // first copy preceding bytes
+    n_bytes_needed = reg_map->substitution_markers[i] - token_start;
+    if ((cur_buf_size + n_bytes_needed) > dest_buf_size) {
+      goto lOverFlow;
+    }
+    memcpy(dest_buf + cur_buf_size, reg_map->to_url_host_template + token_start, n_bytes_needed);
+    cur_buf_size += n_bytes_needed;
+
+    // then copy the sub pattern match
+    match_index = reg_map->substitution_ids[i] * 2;
+    n_bytes_needed = matches_info[match_index + 1] - matches_info[match_index];
+    if ((cur_buf_size + n_bytes_needed) > dest_buf_size) {
+      goto lOverFlow;
+    }
+    memcpy(dest_buf + cur_buf_size, matched_string + matches_info[match_index], n_bytes_needed);
+    cur_buf_size += n_bytes_needed;
+
+    token_start = reg_map->substitution_markers[i] + 2; // skip the place holder
+  }
+
+  // copy last few bytes (if any)
+  if (token_start < reg_map->to_url_host_template_len) {
+    n_bytes_needed = reg_map->to_url_host_template_len - token_start;
+    if ((cur_buf_size + n_bytes_needed) > dest_buf_size) {
+      goto lOverFlow;
+    }
+    memcpy(dest_buf + cur_buf_size, reg_map->to_url_host_template + token_start, n_bytes_needed);
+    cur_buf_size += n_bytes_needed;
+  }
+  Debug("url_rewrite_regex", "Expanded substitutions and returning string [%.*s] with length %d",
+        cur_buf_size, dest_buf, cur_buf_size);
+  return cur_buf_size;
+
+ lOverFlow:
+  Warning("Overflow while expanding substitutions");
+  return 0;
+}
+
+bool
+UrlRewrite::_regexMappingLookup(RegexMappingList &regex_mappings, URL *request_url, int request_port,
+                                const char *request_host, int request_host_len, int rank_ceiling,
+                                UrlMappingContainer &mapping_container)
+{
+  bool retval = false;
+
+  if (rank_ceiling == -1) { // we will now look at all regex mappings
+    rank_ceiling = INT_MAX;
+    Debug("url_rewrite_regex", "Going to match all regexes");
+  }
+  else {
+    Debug("url_rewrite_regex", "Going to match regexes with rank <= %d", rank_ceiling);
+  }
+
+  int request_scheme_len, reg_map_scheme_len;
+  const char *request_scheme = request_url->scheme_get(&request_scheme_len), *reg_map_scheme;
+
+  int request_path_len, reg_map_path_len;
+  const char *request_path = request_url->path_get(&request_path_len), *reg_map_path;
+
+  // Loop over the entire linked list, or until we're satisfied
+  forl_LL(RegexMapping, list_iter, regex_mappings) {
+    int reg_map_rank = list_iter->url_map->getRank();
+
+    if (reg_map_rank > rank_ceiling) {
+      break;
+    }
+
+    reg_map_scheme = list_iter->url_map->fromURL.scheme_get(&reg_map_scheme_len);
+    if ((request_scheme_len != reg_map_scheme_len) ||
+        strncmp(request_scheme, reg_map_scheme, request_scheme_len)) {
+      Debug("url_rewrite_regex", "Skipping regex with rank %d as scheme does not match request scheme",
+            reg_map_rank);
+      continue;
+    }
+
+    if (list_iter->url_map->fromURL.port_get() != request_port) {
+      Debug("url_rewrite_regex", "Skipping regex with rank %d as regex map port does not match request port. "
+            "regex map port: %d, request port %d",
+            reg_map_rank, list_iter->url_map->fromURL.port_get(), request_port);
+      continue;
+    }
+
+    reg_map_path = list_iter->url_map->fromURL.path_get(&reg_map_path_len);
+    if ((request_path_len < reg_map_path_len) ||
+        strncmp(reg_map_path, request_path, reg_map_path_len)) { // use the shorter path length here
+      Debug("url_rewrite_regex", "Skipping regex with rank %d as path does not cover request path",
+            reg_map_rank);
+      continue;
+    }
+
+    int matches_info[MAX_REGEX_SUBS * 3];
+    int match_result = pcre_exec(list_iter->re, list_iter->re_extra, request_host, request_host_len,
+                                 0, 0, matches_info, (sizeof(matches_info) / sizeof(int)));
+    if (match_result > 0) {
+      Debug("url_rewrite_regex", "Request URL host [%.*s] matched regex in mapping of rank %d "
+            "with %d possible substitutions", request_host_len, request_host, reg_map_rank, match_result);
+
+      mapping_container.set(list_iter->url_map);
+
+      char buf[4096];
+      int buf_len;
+
+      // Expand substitutions in the host field from the stored template
+      buf_len = _expandSubstitutions(matches_info, list_iter, request_host, buf, sizeof(buf));
+      URL *expanded_url = mapping_container.createNewToURL();
+      expanded_url->copy(&((list_iter->url_map)->toUrl));
+      expanded_url->host_set(buf, buf_len);
+
+      Debug("url_rewrite_regex", "Expanded toURL to [%.*s]",
+            expanded_url->length_get(), expanded_url->string_get_ref());
+      retval = true;
+      break;
+    } else if (match_result == PCRE_ERROR_NOMATCH) {
+      Debug("url_rewrite_regex", "Request URL host [%.*s] did NOT match regex in mapping of rank %d",
+            request_host_len, request_host, reg_map_rank);
+    } else {
+      Warning("pcre_exec() failed with error code %d", match_result);
+      break;
+    }
+  }
+
+  return retval;
+}
+
+void
+UrlRewrite::_destroyList(RegexMappingList &mappings)
+{
+  RegexMapping *list_iter;
+  while ((list_iter=mappings.pop()) != NULL) {
+    delete list_iter->url_map;
+    if (list_iter->re) {
+      pcre_free(list_iter->re);
+    }
+    if (list_iter->re_extra) {
+      pcre_free(list_iter->re_extra);
+    }
+    if (list_iter->to_url_host_template) {
+      ats_free(list_iter->to_url_host_template);
+    }
+    delete list_iter;
+  }
+  mappings.clear();
+}
diff --git a/proxy/http/remap/UrlRewrite.h b/proxy/http/remap/UrlRewrite.h
new file mode 100644
index 00000000..8785a1a7
--- /dev/null
+++ b/proxy/http/remap/UrlRewrite.h
@@ -0,0 +1,193 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef _URL_REWRITE_H_
+#define _URL_REWRITE_H_
+
+#include "UrlMapping.h"
+#include "HttpTransact.h"
+
+#ifdef HAVE_PCRE_PCRE_H
+#include <pcre/pcre.h>
+#else
+#include <pcre.h>
+#endif
+
+#define URL_REMAP_FILTER_NONE         0x00000000
+#define URL_REMAP_FILTER_REFERER      0x00000001        /* enable "referer" header validation */
+#define URL_REMAP_FILTER_REDIRECT_FMT 0x00010000        /* enable redirect URL formatting */
+
+struct BUILD_TABLE_INFO ;
+
+/**
+ * used for redirection, mapping, and reverse mapping
+**/
+enum mapping_type
+{ FORWARD_MAP, REVERSE_MAP, PERMANENT_REDIRECT, TEMPORARY_REDIRECT, FORWARD_MAP_REFERER,
+  FORWARD_MAP_WITH_RECV_PORT, NONE };
+
+/**
+ *
+**/
+class UrlRewrite
+{
+public:
+  UrlRewrite();
+  ~UrlRewrite();
+
+  int BuildTable(const char * path);
+  mapping_type Remap_redirect(HTTPHdr * request_header, URL *redirect_url);
+  bool ReverseMap(HTTPHdr *response_header);
+  void SetReverseFlag(int flag);
+  void Print();
+  bool is_valid() const { return _valid; };
+//  private:
+
+  static const int MAX_REGEX_SUBS = 10;
+
+  struct RegexMapping
+  {
+    url_mapping *url_map;
+    pcre *re;
+    pcre_extra *re_extra;
+
+    // we store the host-string-to-substitute here; if a match is found,
+    // the substitutions are made and the resulting url is stored
+    // directly in toURL's host field
+    char *to_url_host_template;
+    int to_url_host_template_len;
+
+    // stores the number of substitutions
+    int n_substitutions;
+
+    // these two together point to template string places where
+    // substitutions need to be made and the matching substring
+    // to use
+    int substitution_markers[MAX_REGEX_SUBS];
+    int substitution_ids[MAX_REGEX_SUBS];
+
+    LINK(RegexMapping, link);
+  };
+
+  typedef Queue<RegexMapping> RegexMappingList;
+
+  struct MappingsStore
+  {
+    InkHashTable *hash_lookup;
+    RegexMappingList regex_list;
+    bool empty() { return ((hash_lookup == NULL) && regex_list.empty()); }
+  };
+
+  void PerformACLFiltering(HttpTransact::State * s, url_mapping * mapping);
+  url_mapping *SetupPacMapping();       // manager proxy-autconfig mapping
+  url_mapping *SetupBackdoorMapping();
+  void PrintStore(MappingsStore &store);
+
+  void DestroyStore(MappingsStore &store)
+  {
+    _destroyTable(store.hash_lookup);
+    _destroyList(store.regex_list);
+  }
+
+  bool InsertForwardMapping(mapping_type maptype, url_mapping * mapping, const char * src_host);
+  bool InsertMapping(mapping_type maptype, url_mapping *new_mapping, RegexMapping *reg_map,
+                        const char * src_host, bool is_cur_mapping_regex);
+
+  bool TableInsert(InkHashTable *h_table, url_mapping *mapping, const char *src_host);
+
+  MappingsStore forward_mappings;
+  MappingsStore reverse_mappings;
+  MappingsStore permanent_redirects;
+  MappingsStore temporary_redirects;
+  MappingsStore forward_mappings_with_recv_port;
+
+  bool forwardMappingLookup(URL *request_url, int request_port, const char *request_host,
+                            int request_host_len, UrlMappingContainer &mapping_container)
+  {
+    return _mappingLookup(forward_mappings, request_url, request_port, request_host, request_host_len,
+                          mapping_container);
+  }
+  bool reverseMappingLookup(URL *request_url, int request_port, const char *request_host,
+                            int request_host_len, UrlMappingContainer &mapping_container)
+  {
+    return _mappingLookup(reverse_mappings, request_url, request_port, request_host, request_host_len,
+                          mapping_container);
+  }
+  bool permanentRedirectLookup(URL *request_url, int request_port, const char *request_host,
+                               int request_host_len, UrlMappingContainer &mapping_container)
+  {
+    return _mappingLookup(permanent_redirects, request_url, request_port, request_host, request_host_len,
+                          mapping_container);
+  }
+  bool temporaryRedirectLookup(URL *request_url, int request_port, const char *request_host,
+                               int request_host_len, UrlMappingContainer &mapping_container)
+  {
+    return _mappingLookup(temporary_redirects, request_url, request_port, request_host, request_host_len,
+                          mapping_container);
+  }
+  bool forwardMappingWithRecvPortLookup(URL *request_url, int recv_port, const char *request_host,
+                                        int request_host_len, UrlMappingContainer &mapping_container)
+  {
+    return _mappingLookup(forward_mappings_with_recv_port, request_url, recv_port, request_host,
+                          request_host_len, mapping_container);
+  }
+
+  int nohost_rules;
+  int reverse_proxy;
+  int backdoor_enabled;
+
+  // Vars for PAC mapping
+  int mgmt_autoconf_port;
+  int default_to_pac;
+  int default_to_pac_port;
+
+  char *ts_name;                // Used to send redirects when no host info
+
+  char *http_default_redirect_url;      // Used if redirect in "referer" filtering was not defined properly
+  int num_rules_forward;
+  int num_rules_reverse;
+  int num_rules_redirect_permanent;
+  int num_rules_redirect_temporary;
+  int num_rules_forward_with_recv_port;
+
+private:
+  bool _valid;
+
+  bool _mappingLookup(MappingsStore &mappings, URL *request_url, int request_port, const char *request_host,
+                      int request_host_len, UrlMappingContainer &mapping_container);
+  url_mapping *_tableLookup(InkHashTable * h_table, URL * request_url, int request_port, char *request_host,
+                            int request_host_len);
+  bool _regexMappingLookup(RegexMappingList &regex_mappings, URL * request_url, int request_port, const char *request_host,
+                           int request_host_len, int rank_ceiling,
+                           UrlMappingContainer &mapping_container);
+  int _expandSubstitutions(int *matches_info, const RegexMapping *reg_map, const char *matched_string, char *dest_buf,
+                           int dest_buf_size);
+  void _destroyTable(InkHashTable *h_table);
+  void _destroyList(RegexMappingList &regexes);
+  inline bool _addToStore(MappingsStore &store, url_mapping *new_mapping, RegexMapping *reg_map, const char *src_host,
+                          bool is_cur_mapping_regex, int &count);
+};
+
+void url_rewrite_remap_request(const UrlMappingContainer& mapping_container, URL * request_url);
+
+#endif
diff --git a/proxy/http/stats.memo b/proxy/http/stats.memo
new file mode 100644
index 00000000..23a52086
--- /dev/null
+++ b/proxy/http/stats.memo
@@ -0,0 +1,247 @@
+HTTP Engine Configuration and Statistics Variables
+==================================================
+Date:   Feb 13, 1997
+
+        +----------------+
+        | Configurations |
+        +----------------+
+
+                  
+Proxy Schems:
+-------------
+  Name          :  SchemeEnabled
+  Type          :  A bit vector. a bit per scheme. 
+  Who It Affects:  HTTP Engine
+  Comments      :  Current schemes are HTTP / HTTPS
+
+  Name          :  TunnelingEnabled
+  Type          :  boolean
+  Who It Affects:  HTTP Engine               
+  Comments      :  support CONNECT request for SSL tunneling.
+
+
+Connections and Keep Alive:
+---------------------------
+
+  Name          :  MaxOpenConnectionsToServer
+  Type          :  int
+  Who It Affects:  HTTP Processor
+  Comments      :  maximum number of connections the proxy
+                   can open to a single origin server
+
+  Name          :  MaxConnectionsIn
+  Type          :  int
+  Who It Affects:  HTTP Processor
+  Comments      :  Limit the number of concurrent open connections
+                   to the proxy server.
+
+  Name          :  KeepAliveNoActivityTimeoutIn
+  Type          :  int
+  Who It Affects:  HTTP Processor
+  Comments      :  Minimum number of seconds to wait for a new request
+                   from a user agent on a keep-alive connection.
+                   Time is counted from the time the last byte of the
+                   response to the last request was sent to the user agent.
+                   If the time exceeds the timeout value the proxy closes
+                   the connection to the user agent.
+                   
+  Name          :  KeepAliveNoActivityTimeoutOut
+  Type          :  int
+  Who It Affects:  HTTP Processor
+  Comments      :  Minimum number of seconds to wait for a new request
+                   on an opened keep-alive connection between the proxy
+                   and an origin server. If the time exceeds the timeout
+                   value, the proxy closes this keep-alive connection
+                   to the origin server.
+
+  Name          :  MaxPendingKeepAliveOut
+  Type          :  int
+  Who It Affects:  HTTP Processor
+  Comments      :  Maximum number of pending keep alive
+                   requests on an outgoing keep alive connection.
+                   If the outgoing keep-alive queue is full and the number
+                   of connections opened to that server is less then
+                   'MaxOpenConnectionsToServer', then the proxy opens
+                   a new connection. Else it puts it in a standby queue.
+
+
+  Name          :  ServerPort
+  Type          :  integer
+  Who It Affects:  HTTP Processor
+  Comments      :
+
+  Name          :  HttpVersionIn
+  Type          :  integer
+  Who It Affects:  HTTP Processor
+  Comments      :  http version for this proxy for incoming connections.
+
+  Name          :  HttpVersionOut
+  Type          :  integer
+  Who It Affects:  HTTP Processor
+  Comments      :  http version for this proxy for outgoing connections.
+
+  Name          :  HTTP1_0_KeepAliveEnableIn
+  Type          :  boolean
+  Who It Affects:  HTTP Processor
+  Comments      :  enable keep alive for incoming connections
+
+  Name          :  HTTP1_0_KeepAliveEnableOut
+  Type          :  boolean
+  Who It Affects:  HTTP Processor
+  Comments      :  enable keep alive for outgoing connections
+    
+  
+                   
+                   
+Proxy - Processing a request:
+-----------------------------
+
+E:Name          :  ink_api_enable
+  Type          :  boolean
+  Who It Affects:  HTTP Engine
+  Comments      :  enable or disable calls to user defined ink_api
+                   functions.
+                   
+E:Name          :  AccessControlEnable
+  Type          :  boolean  
+  Who It Affects:  HTTP Engine
+  Comments      :  enable or disable site access control
+  
+  Name          :  AccessControlSiteFileName
+  Type          :  string
+  Who It Affects:  HTTP Engine
+  Comments      :  A file with sites for access control
+
+  Name          :  MimeTypeFileName
+  Type          :  string
+  Who It Affects:  HTTP Engine
+  Comments      :  A file with mime types  
+  
+  Name          :  UserGroups
+  Type          :  array of { strings, user_agent_ip, ?? }
+  Who It Affects:  HTTP Engine
+  Comments      :  Group names of users.
+
+  Name          :  RequestViaStr    
+  Type          :  string 
+  Who It Affects:  HTTP Engine
+  Comments      :  name to be appended to Via (e.g. "1.1 proxy-name")
+
+  Name          :  Language     
+  Type          :  string 
+  Who It Affects:  HTTP Engine
+  Comments      :  Language to be used for proxy errors and warnings
+
+  Name          :  RemoveFrom   
+  Type          :  boolean
+  Who It Affects:  HTTP Engine
+  Comments      :  Determines whether "from" field is removed from
+                   the request before it is sent out.
+
+  Name          :  RemoveReferer
+  Type          :  boolean
+  Who It Affects:  HTTP Engine
+  Comments      :  Determines whether "Referer" field is removed from
+                   the request before it is sent out.
+
+  Name          :  RemoveUserAgent
+  Type          :  boolean
+  Who It Affects:  HTTP Engine
+  Comments      :  Determines whether "User Agent" field is removed 
+                   from the request before it is sent out.
+
+Proxy - Processing a response:
+-----------------------------
+
+  Name          :  ResponseViaStr    
+  Type          :  string 
+  Who It Affects:  HTTP Engine
+  Comments      :  name to be appended to Via (e.g. "1.1 proxy-name")
+
+    
+
+Caching Policies:
+-----------------
+
+  Name          :  CacheOn
+  Type          :  boolean
+  Who It Affects:  HTTP Engine
+  Comments      :  If true caching is on, if false caching is off.
+
+  Name          :  HeuristicAgeFactor
+  Type          :  double 
+  Who It Affects:  HTTP Engine
+  Comments      :  Heuristic age of document= doc_date + (doc_date -
+                   last_mod_date)*HeuristicAgeFactor
+
+  Name          :  AlwaysRevalidateAfter
+  Type          :  int >= 0 (seconds)
+  Who It Affects:  HTTP Engine
+  Comments      :  Always validate the freshness of a cache copy
+                   if the cache has the document for AlwaysValidateAfter
+                   seconds or longer (will override client and
+                   server specification)
+
+  Name          :  AlwaysFreshBefore
+  Type          :  int >= 0 (seconds)
+  Who It Affects:  HTTP Engine
+  Comments      :  Allow a document to be served from cache as long
+                   as its age is less than or equal to
+		   AlwaysFreshBefore seconds.
+		   Overrides client and server specifications.
+
+  Name          :  CachableSchemes
+  Type          :  A bit vector
+  Who It Affects:  HTTP Engine
+  Comments      :  which schemes to cache. HTTP etc.
+
+  Name          :  CachableMimeTypes
+  Type          :  A bit vector
+  Who It Affects:  HTTP Engine
+  Comments      :  which mime types to cache.
+  
+  Name          :  NoCacheDomain
+  Type          :  array of strings
+  Who It Affects:  HTTP Engine
+  Comments      :  A list of domains that should not be cached.
+                   For example a small cache may not want to cache
+                   local documents.
+                     
+
+Per Transaction Statisctics:
+---------------------------- 
+
+  Name     :  TransactionTotalTime
+  Type     :  integer
+  Internal :  External / Internal
+  Comments :  The time elapsed from the time the user agent opened
+              a connection to the proxy, or the time the first byte
+              of a request was read in a keep alive connection,
+              until the time the last byte of response was sent to
+              the user agent.
+
+  Name     :  TransactionThinkTime
+  Type     :  integer
+  Internal :  External / Internal
+  Comments :  The time spent inside the HTTP engine. This does not
+              include any I/O time.
+
+  Name     :  TransactionBytesIn
+  Type     :  integer
+  Internal :  External / Internal
+  Comments :  The size in bytes of the user agent's request
+
+  Name     :  TransactionBytesOut
+  Type     :  integer
+  Internal :  External / Internal
+  Comments :  The size in bytes of the response to the user agent.
+
+  Name     :  TransactionCacheResult
+  Type     :  enum { HIT, MISS, REVALIDATE_HIT, REVALIDATE_MISS }
+  Internal :  External / Internal
+  Comments :  Cache result.
+
+              
+
+
+
diff --git a/proxy/http/test_http_client.pl b/proxy/http/test_http_client.pl
new file mode 100644
index 00000000..f1c5108e
--- /dev/null
+++ b/proxy/http/test_http_client.pl
@@ -0,0 +1,347 @@
+#!/usr/bin/perl
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require 5.001;
+#use strict;
+use sigtrap;
+use Socket;
+
+#forward declaration
+sub process_input_http_requests_file($$$);
+sub spawn_http_request($$$);
+sub make_proxy_request($$$$$);					   
+sub make_doc_filename($);
+sub make_doc_http_filename($);
+
+
+###########################################################
+#						   
+# global configuration parameters
+#						   
+###########################################################
+my ($number_of_users) = 1;
+my ($save_http_doc)   = 0;
+###########################################################
+#
+# subroutine: process_input_http_requests_file filename
+#
+# Process input file. The file contains http requests.
+###########################################################
+sub process_input_http_requests_file($$$)
+{
+	my ($filename, $proxy_name, $proxy_port) = @_;
+	my ($input, $host_name, $host_port, $request, $line);
+
+	#open input file for read
+	unless (open input, "<$filename")
+	{
+		print "cannot open $filename: $!\n";
+		return;
+	}
+
+	while ($line = <input>)
+	{
+		$request .= $line;
+		#replace \n with \r\n
+		if (not $line =~ m/\r/)
+		{
+			$line =~ s/\n/\r\n/;
+		}
+		if ($line =~ m/host/i)
+		{
+			($_, $host_name, $host_port) = split( /:/, $line, 3);
+			if (not $host_port)
+			{
+				$host_port = 80;
+			}
+		}
+		elsif (length($line) <= 2 && $line == "\n")
+		{
+			$request .= $line;
+			if ($proxy_name and $proxy_port)
+			{
+				$request = make_proxy_request(
+					$request,
+					$host_name,
+					$host_port,
+					$proxy_name,
+				    $proxy_port);
+				spawn_http_request($proxy_name, $proxy_port, $request);
+			}
+			else
+			{
+				print $request;
+				spawn_http_request($host_name, $host_port, $request);
+			}
+			$request = "";			
+		}
+	}
+	return;
+}
+###########################################################
+#
+# subroutine: spawn_http_request hostname hostport request
+#
+###########################################################
+sub spawn_http_request($$$)
+{
+	my($hostname, $hostport, $request) = @_;
+
+	my ($pid);
+	if (!defined ($pid = fork))
+	{
+		print "fork failed", "\n";
+		exit;
+	}
+	elsif ($pid)
+	{   # parent
+		return;
+	}
+	# else, I am the child
+	do_http_request ($hostname, $hostport, $request);
+	exit;	
+}
+###########################################################
+#
+# subroutine: do_http_request hostname request
+#
+###########################################################
+sub spawn_http_request($$$)
+{
+	my ($hostname, $hostport, $request) = @_;
+	my ($line);
+	my ($iaddr, $paddr, $proto);
+
+	$hostname =~ s/\s//g;
+	
+	$iaddr     = inet_aton($hostname)   or die "no host: $hostname", "\n";
+	$paddr     = sockaddr_in($hostport, $iaddr);
+	$proto     = getprotobyname('tcp');
+
+	unless (socket(Host, PF_INET, SOCK_STREAM, $proto))
+	{
+		print "socket: $!", "\n";
+		exit;
+	}
+	unless (connect(Host, $paddr))
+	{
+		print "connect: $!", "\n";
+		exit;
+	}
+	syswrite Host, $request, length($request);
+	#process response
+	process_http_response($request, $Host, 1, 1);
+	print "request is done\n";
+	close (Host);
+
+	return;
+}
+###########################################################
+#
+# subroutine: process_http_response
+#     request,
+#     host_socket,
+#     save_doc_flag,
+#     save_http_flag
+#
+# options for save doc
+# - save http response header in doc.http
+# - save http doc in a unique file
+###########################################################
+sub process_http_response($$$$)
+{
+	my ($request, $Host, $save_doc_flag, $save_http_flag) = @_;
+	my ($doc_filename, $http_filename);
+
+	my ($doc_filename)      = make_doc_filename($request);
+	my ($doc_http_filename) = make_doc_http_filename($request);
+
+	print $doc_filename, ' ', $doc_http_filename, "\n";
+
+	my ($doc_file, $doc_http_file);
+	########################
+	# open files for write #
+	########################
+	if ($save_doc_flag)
+	{
+		unless (open doc_file, ">$doc_filename")
+		{
+			print "cannot open $doc_filename for write", "\n";
+			return;
+		}
+	}
+	if ($save_http_flag)
+	{
+		unless (open doc_http_file, ">$doc_http_filename")
+		{
+			print "cannot open $doc_http_filename for write", "\n";
+			return;
+		}
+	}
+	##############################
+	# write http header and body #
+	##############################
+	my ($http_header) = 1;
+	my ($doc_body)    = 0;
+	my ($line);
+
+	while ($line = <Host>)
+	{
+		if ($http_header)
+		{
+			if ($save_http_flag)
+			{
+				print doc_http_file $line;
+			}
+			if (length($line) <= 2 && $line == "\n")
+			{
+				close doc_http_file;
+				$http_header = 0;
+				$doc_body    = 1;
+			}
+		}
+		elsif ($save_doc_flag)
+		{
+			print doc_file $line;
+		}
+	}
+	return;
+}
+###########################################################
+#
+# subroutine: make_proxy_request
+#       request
+#       host_name
+#       host_port
+#       proxy_name
+#       proxy_port
+#
+###########################################################
+sub make_proxy_request($$$$$)
+{
+	my ($request, $host_name, $host_port, $proxy_name, $proxy_port) = @_;
+	my ($proxy_request) = $request;
+
+	my ($url_prefix) = "http:\/\/$host_name\/";
+	$url_prefix =~ s/\s//g;
+	
+	if ($host_port != 80)
+	{
+		$url_prefix .= ":$host_port\/";
+	}
+	$url_prefix =~ s/\s//g;
+
+	$proxy_request =~ s/\//$url_prefix/;
+
+	return ($proxy_request);
+}
+###########################################################
+#
+# subroutine: make_doc_filename request
+#
+# file name is: <host_name><doc_name>
+###########################################################
+sub make_doc_filename($)
+{
+	my ($request) = @_;
+	my ($doc_filename);
+	my ($host_name);
+
+	($_, $host_name) = split (/host:/i, $request, 2);
+	($host_name, $_) = split (/ /, $host_name);
+	#replace every . with _
+	$host_name =~ s/\./_/g;
+
+	print $request, "\n";
+	print $host_name, "\n";
+	
+	($_, $doc_filename) = split (/ /, $request, 2);
+	#remove scheme://host_name if this is a proxy request
+#	if ($doc_filename =~ m/:\/\//)
+#	{
+#		
+#	}
+#		
+#	@@@@@@@@
+	
+	($_, $doc_filename) = split (/\//, $doc_filename, 2);
+	$doc_filename =~ s/\//_/g;
+	#remove any white spaces
+	$doc_filename =~ s/\s//g;
+
+	print "doc name is: ", $doc_filename, "\n";
+	
+	if (length($doc_filename) <= 1)
+	{
+		$doc_filename = 'default.html';
+	}
+
+	$doc_filename = $host_name . '_' . $doc_filename;
+
+	#remove any white spaces
+	$doc_filename =~ s/\s//g;
+
+	return ($doc_filename);
+}
+###########################################################
+#
+# subroutine: make_doc_filename request
+#
+###########################################################
+sub make_doc_http_filename($)
+{
+	my ($request) = @_;
+	my ($doc_http_filename);
+
+	$doc_http_filename = make_doc_filename($request);
+	$doc_http_filename .= '.http';
+
+	return ($doc_http_filename);
+}
+###########################################################
+#
+# main entry point
+#
+###########################################################
+if ($#ARGV != 1 and $#ARGV != 3)
+{
+	print 'no proxy : test_http_client <input file> <number of users>', "\n";
+	print 'use proxy: test_http_client <input file> <number of users> ';
+	print '<proxy host> <proxy port>', "\n";
+	exit;
+}
+
+if ($#ARGV == 1)
+{
+	my ($infile, $nusers) = @ARGV;
+	process_input_http_requests_file($infile, "", "");
+}
+elsif ($#ARGV == 3)
+{
+	my ($infile, $nusers, $proxy_name, $proxy_port) = @ARGV;
+	process_input_http_requests_file($infile, $proxy_name, $proxy_port);
+}	
+
+print "\n";
+exit;
+
+
+
+
+
+
diff --git a/proxy/http/test_proxy.pl b/proxy/http/test_proxy.pl
new file mode 100644
index 00000000..07943b63
--- /dev/null
+++ b/proxy/http/test_proxy.pl
@@ -0,0 +1,326 @@
+#!/usr/bin/perl
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require 5.001;
+use strict;
+use sigtrap;
+use Socket;
+require "do_tcp.pl";
+require "url_manip.pl";
+#forward declaration
+
+sub spawn_http_request($$$);
+sub make_proxy_request($$$$$);					   
+sub make_doc_filename($);
+sub make_doc_http_filename($);
+
+
+###########################################################
+#						   
+# global configuration parameters
+#						   
+###########################################################
+glob ($number_of_users) = 1;
+glob ($save_http_doc)   = 0; #if false (0) don't save a copy
+	                         #of the doc and header files.
+glob ($method) = "GET";      #method to use in http requests
+
+###########################################################
+#						   
+# subroutine: compare_files
+#
+# return 0 if files are identical
+###########################################################
+sub compare_files($$$)
+{
+	my ($dfile, $pfile, $log_file) = @_;
+	@args = ("diff", $dfile, $pfile, ">>", $log_file);
+
+	#diff returns 0 if files are identical
+	$is_diff = system (@args);
+
+	return ($is_diff);
+}
+###########################################################
+#
+# connect, send request and process response
+#
+###########################################################
+###########################################################
+#
+# subroutine: spawn_task
+#
+###########################################################
+sub spawn_task($$$$)
+{
+	my($hostname, $hostport, $request, $run_task) = @_;
+
+	my ($pid);
+	if (!defined ($pid = fork))
+	{
+		print "fork failed", "\n";
+		exit;
+	}
+	elsif ($pid)
+	{   # parent
+		return;
+	}
+	# else, I am the child
+	run_task ($hostname, $hostport, $request);
+	exit;	
+}
+###########################################################
+#
+# subroutine: run_proxy_keep_alive
+#
+###########################################################
+sub run_proxy_keep_alive
+{
+	my ($proxy_host_name, $proxy_port, 
+}
+
+@@@@@@@@@@
+###########################################################
+#
+# subroutine: do_http_request hostname request
+#
+###########################################################
+sub do_http_request($$$)
+{
+	my ($hostname, $hostport, $request) = @_;
+	my ($line);
+	my ($iaddr, $paddr, $proto);
+
+	$hostname =~ s/\s//g;
+	
+	$iaddr     = inet_aton($hostname)   or die "no host: $hostname", "\n";
+	$paddr     = sockaddr_in($hostport, $iaddr);
+	$proto     = getprotobyname('tcp');
+
+	unless (socket(Host, PF_INET, SOCK_STREAM, $proto))
+	{
+		print "socket: $!", "\n";
+		exit;
+	}
+	unless (connect(Host, $paddr))
+	{
+		print "connect: $!", "\n";
+		exit;
+	}
+	syswrite Host, $request, length($request);
+	#process response
+	process_http_response($request, $Host, 1, 1);
+	print "request is done\n";
+	close (Host);
+
+	return;
+}
+###########################################################
+#
+# subroutine: process_http_response
+#     request,
+#     host_socket,
+#     save_doc_flag,
+#     save_http_flag
+#
+# options for save doc
+# - save http response header in doc.http
+# - save http doc in a unique file
+###########################################################
+sub process_http_response($$$$)
+{
+	my ($request, $Host, $save_doc_flag, $save_http_flag) = @_;
+	my ($doc_filename, $http_filename);
+
+	my ($doc_filename)      = make_doc_filename($request);
+	my ($doc_http_filename) = make_doc_http_filename($request);
+
+	print $doc_filename, ' ', $doc_http_filename, "\n";
+
+	my ($doc_file, $doc_http_file);
+	########################
+	# open files for write #
+	########################
+	if ($save_doc_flag)
+	{
+		unless (open doc_file, ">$doc_filename")
+		{
+			print "cannot open $doc_filename for write", "\n";
+			return;
+		}
+	}
+	if ($save_http_flag)
+	{
+		unless (open doc_http_file, ">$doc_http_filename")
+		{
+			print "cannot open $doc_http_filename for write", "\n";
+			return;
+		}
+	}
+	##############################
+	# write http header and body #
+	##############################
+	my ($http_header) = 1;
+	my ($doc_body)    = 0;
+	my ($line);
+
+	while ($line = <Host>)
+	{
+		if ($http_header)
+		{
+			if ($save_http_flag)
+			{
+				print doc_http_file $line;
+			}
+			if (length($line) <= 2 && $line == "\n")
+			{
+				close doc_http_file;
+				$http_header = 0;
+				$doc_body    = 1;
+			}
+		}
+		elsif ($save_doc_flag)
+		{
+			print doc_file $line;
+		}
+	}
+	return;
+}
+###########################################################
+#
+# subroutine: make_proxy_request
+#       request
+#       host_name
+#       host_port
+#       proxy_name
+#       proxy_port
+#
+###########################################################
+sub make_proxy_request($$$$$)
+{
+	my ($request, $host_name, $host_port, $proxy_name, $proxy_port) = @_;
+	my ($proxy_request) = $request;
+
+	my ($url_prefix) = "http:\/\/$host_name\/";
+	$url_prefix =~ s/\s//g;
+	
+	if ($host_port != 80)
+	{
+		$url_prefix .= ":$host_port\/";
+	}
+	$url_prefix =~ s/\s//g;
+
+	$proxy_request =~ s/\//$url_prefix/;
+
+	return ($proxy_request);
+}
+###########################################################
+#
+# subroutine: make_doc_filename request
+#
+# file name is: <host_name><doc_name>
+###########################################################
+sub make_doc_filename($)
+{
+	my ($request) = @_;
+	my ($doc_filename);
+	my ($host_name);
+
+	($_, $host_name) = split (/host:/i, $request, 2);
+	($host_name, $_) = split (/ /, $host_name);
+	#replace every . with _
+	$host_name =~ s/\./_/g;
+
+	print $request, "\n";
+	print $host_name, "\n";
+	
+	($_, $doc_filename) = split (/ /, $request, 2);
+	#remove scheme://host_name if this is a proxy request
+#	if ($doc_filename =~ m/:\/\//)
+#	{
+#		
+#	}
+#		
+#	@@@@@@@@
+	
+	($_, $doc_filename) = split (/\//, $doc_filename, 2);
+	$doc_filename =~ s/\//_/g;
+	#remove any white spaces
+	$doc_filename =~ s/\s//g;
+
+	print "doc name is: ", $doc_filename, "\n";
+	
+	if (length($doc_filename) <= 1)
+	{
+		$doc_filename = 'default.html';
+	}
+
+	$doc_filename = $host_name . '_' . $doc_filename;
+
+	#remove any white spaces
+	$doc_filename =~ s/\s//g;
+
+	return ($doc_filename);
+}
+###########################################################
+#
+# subroutine: make_doc_filename request
+#
+###########################################################
+sub make_doc_http_filename($)
+{
+	my ($request) = @_;
+	my ($doc_http_filename);
+
+	$doc_http_filename = make_doc_filename($request);
+	$doc_http_filename .= '.http';
+
+	return ($doc_http_filename);
+}
+###########################################################
+#
+# main entry point
+#
+###########################################################
+if ($#ARGV != 1 and $#ARGV != 3)
+{
+	print 'no proxy : test_http_client <input file> <number of users>', "\n";
+	print 'use proxy: test_http_client <input file> <number of users> ';
+	print '<proxy host> <proxy port>', "\n";
+	exit;
+}
+
+if ($#ARGV == 1)
+{
+	my ($infile, $nusers) = @ARGV;
+	process_input_http_requests_file($infile, "", "");
+}
+elsif ($#ARGV == 3)
+{
+	my ($infile, $nusers, $proxy_name, $proxy_port) = @ARGV;
+	process_input_http_requests_file($infile, $proxy_name, $proxy_port);
+}	
+
+print "\n";
+exit;
+
+
+
+
+
+
diff --git a/proxy/http/test_socket_close.cc b/proxy/http/test_socket_close.cc
new file mode 100644
index 00000000..02df6412
--- /dev/null
+++ b/proxy/http/test_socket_close.cc
@@ -0,0 +1,645 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <iostream.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <sys/filio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include "/usr/include/netdb.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <fstream.h>
+#include <strstream.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+enum Task_t
+{
+  TASK_NONE = 0,
+  TASK_DONE,
+  TASK_CONNECT,
+  TASK_LISTEN_SETUP,
+  TASK_ACCEPT,
+  TASK_SHUTDOWN_OUTPUT,
+  TASK_SHUTDOWN_INPUT,
+  TASK_SHUTDOWN_BOTH,
+  TASK_TRY_READ,
+  TASK_TRY_WRITE,
+  TASK_TRY_WRITE_THEN_SHUTDOWN_OUTPUT,
+  TASK_TRY_WRITE_THEN_SHUTDOWN_BOTH,
+  TASK_COUNT
+};
+
+enum State_t
+{
+  STATE_IDLE = 0,
+  STATE_DONE,
+  STATE_ERROR
+};
+
+enum Connection_t
+{
+  CONNECTION_CLIENT,
+  CONNECTION_SERVER
+};
+
+enum Scenario_t
+{
+  SERVER_WRITE_CLIENT_READ,
+
+  SERVER_SHUTDOWN_OUTPUT_CLIENT_TRY_READ,
+  SERVER_SHUTDOWN_INPUT_CLIENT_TRY_READ,
+  SERVER_SHUTDOWN_BOTH_CLIENT_TRY_READ,
+  SERVER_SHUTDOWN_OUTPUT_CLIENT_TRY_WRITE,
+  SERVER_SHUTDOWN_INPUT_CLIENT_TRY_WRITE,
+  SERVER_SHUTDOWN_BOTH_CLIENT_TRY_WRITE,
+
+  CLIENT_SHUTDOWN_OUTPUT_SERVER_TRY_READ,
+  CLIENT_SHUTDOWN_INPUT_SERVER_TRY_READ,
+  CLIENT_SHUTDOWN_BOTH_SERVER_TRY_READ,
+  CLIENT_SHUTDOWN_OUTPUT_SERVER_TRY_WRITE,
+  CLIENT_SHUTDOWN_INPUT_SERVER_TRY_WRITE,
+  CLIENT_SHUTDOWN_BOTH_SERVER_TRY_WRITE,
+
+  SERVER_WRITE_IMMIDIATE_SHUTDOWN_CLIENT_WRITE
+};
+
+struct State
+{
+  State_t state;
+  int tasks_count;
+  Task_t tasks[100];
+  int64_t nbytes_write;             // number of bytes to write
+  intte_t nbytes_read;              // number of bytes to read
+
+    State():state(STATE_IDLE), tasks_count(0)
+  {
+  }
+};
+
+struct Conn
+{
+  Connection_t connection_type;
+  int listen_s;
+  int s;
+  struct sockaddr_in addr;
+  State state;
+  //State_t            state;
+  int state_delay_ms;
+};
+
+Conn client, server;
+int port_number;
+Task_t server_set_next_client_task[TASK_COUNT];
+Task_t client_set_next_server_task[TASK_COUNT];
+char write_buf[10];
+char read_buf[10];
+int state_delay_ms = 0;
+
+#define IS_DONE(c) (c.state.state==STATE_DONE || c.state.state==STATE_ERROR)
+#define IS_IDLE(c) (c.state.state==STATE_IDLE)
+
+void main_loop();
+void state_act(Conn * c);
+void state_act_task(Conn * c);
+int do_connect(Conn * from, Conn * to);
+int do_listen_setup(Conn * c, int port_number);
+int do_accept(Conn * c);
+int create_nonblocking_socket();
+int set_nonblocking_socket(int s);
+int do_shutdown(int s, Task_t task);
+int do_try_read(int s, char *buf, int length);
+int do_try_write(int s, char *buf, int length);
+void setup_scenario(Scenario_t scenario);
+void dequeue_task(Conn * c);
+///////////////////////////////////////////////////////////
+//
+//  main()
+//
+///////////////////////////////////////////////////////////
+int
+main(int argc, char **argv)
+{
+  if (argc < 2) {
+    cout << "test_socket_close <port number> <state delay ms>" << endl;
+    return (0);
+  }
+  port_number = atoi(argv[1]);
+
+  if (argc >= 3) {
+    state_delay_ms = atoi(argv[2]);
+  }
+
+  memset(&client, '\0', sizeof(client));
+  memset(&server, '\0', sizeof(server));
+
+  memset(&write_buf, 'B', sizeof(write_buf));
+  memset(&read_buf, '\0', sizeof(read_buf));
+
+
+  client.connection_type = CONNECTION_CLIENT;
+  server.connection_type = CONNECTION_SERVER;
+
+  client.state.state = STATE_IDLE;
+  server.state.state = STATE_IDLE;
+
+  client.state.tasks_count = 0;
+  server.state.tasks_count = 1;
+  server.state.tasks[0] = TASK_LISTEN_SETUP;
+
+  client.state_delay_ms = state_delay_ms;
+  server.state_delay_ms = state_delay_ms;
+
+  ////////////////////
+  // set next state //
+  ////////////////////
+  setup_scenario(SERVER_WRITE_IMMIDIATE_SHUTDOWN_CLIENT_WRITE);
+  //setup_scenario(SERVER_WRITE_CLIENT_READ);
+
+  main_loop();
+
+  return (0);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  main_loop()
+//
+///////////////////////////////////////////////////////////
+void
+main_loop()
+{
+  while (!IS_DONE(client) || !IS_DONE(server)) {
+    if (client.state.tasks_count > 0 && !IS_DONE(client)) {
+      state_act(&client);
+    }
+    if (server.state.tasks_count > 0 && !IS_DONE(server)) {
+      state_act(&server);
+    }
+  }
+  return;
+}
+
+///////////////////////////////////////////////////////////
+//
+//  state_act()
+//
+///////////////////////////////////////////////////////////
+void
+state_act(Conn * c)
+{
+  Task_t saved_task = c->state.tasks[0];
+
+  Conn & cr = *c;
+
+  while (c->state.tasks_count > 0 && !IS_DONE(cr)) {
+    if (c->state_delay_ms) {
+      poll(0, 0, c->state_delay_ms);
+    }
+    state_act_task(c);
+  }
+
+  if (IS_DONE(cr)) {
+    cr.state.tasks_count = 1;
+    cr.state.tasks[0] = TASK_DONE;
+  }
+
+  if ((c == &client && IS_DONE(server)) || (c == &server && IS_DONE(client))) {
+    cr.state.tasks_count = 1;
+    cr.state.tasks[0] = saved_task;
+  } else if (c == &client) {
+    server.state.tasks_count = 1;
+    server.state.tasks[0] = client_set_next_server_task[saved_task];
+  } else {
+    client.state.tasks_count = 1;
+    client.state.tasks[0] = server_set_next_client_task[saved_task];
+  }
+  return;
+}
+
+///////////////////////////////////////////////////////////
+//
+//  state_act_task()
+//
+///////////////////////////////////////////////////////////
+void
+state_act_task(Conn * c)
+{
+  int error;
+  char write_ch = 'T', read_ch;
+  int r;
+
+  Task_t saved_task = c->state.tasks[0];
+
+  switch (c->state.tasks[0]) {
+  case TASK_CONNECT:
+    assert(c == &client);
+    do_connect(&client, &server);
+    dequeue_task(&client);
+    break;
+
+  case TASK_SHUTDOWN_OUTPUT:
+  case TASK_SHUTDOWN_INPUT:
+  case TASK_SHUTDOWN_BOTH:
+    if (do_shutdown(c->s, c->state.tasks[0]) < 0)
+      c->state.state = STATE_ERROR;
+    else
+      c->state.state = STATE_DONE;
+
+    dequeue_task(c);
+    break;
+
+  case TASK_TRY_READ:
+    r = do_try_read(c->s, &read_ch, 1);
+    if (r > 0)
+      c->state.state = STATE_IDLE;
+    else if (r == 0)
+      c->state.state = STATE_DONE;      // EOS
+    else if (r != -EAGAIN)
+      c->state.state = STATE_ERROR;     // error
+    dequeue_task(c);
+    break;
+
+  case TASK_TRY_WRITE:
+    r = do_try_write(c->s, &write_ch, 1);
+    if (r <= 0 && r != -EAGAIN)
+      c->state.state = STATE_ERROR;     // error
+    else
+      c->state.state = STATE_IDLE;
+    dequeue_task(c);
+    break;
+
+  case TASK_TRY_WRITE_THEN_SHUTDOWN_OUTPUT:
+  case TASK_TRY_WRITE_THEN_SHUTDOWN_BOTH:
+    r = do_try_write(c->s, write_buf, c->state.nbytes_write);
+    if (r <= 0 && r != -EAGAIN)
+      c->state.state = STATE_ERROR;     // error
+    else {
+      c->state.nbytes_write -= r;
+      if (c->state.nbytes_write == 0) {
+        // do shutdown
+        if (do_shutdown(c->s, c->state.tasks[0]) < 0)
+          c->state.state = STATE_ERROR;
+        else
+          c->state.state = STATE_DONE;
+
+        dequeue_task(c);
+      }
+    }
+    break;
+
+  case TASK_LISTEN_SETUP:
+    assert(c == &server);
+    if (do_listen_setup(&server, port_number) > 0) {
+      dequeue_task(&server);
+    }
+    break;
+
+  case TASK_ACCEPT:
+    assert(c == &server);
+    if (do_accept(&server) > 0) {
+      dequeue_task(&server);
+    }
+    break;
+  }
+
+  return;
+}
+
+///////////////////////////////////////////////////////////
+//
+//  do_connect()
+//
+//  'to' must be listening
+///////////////////////////////////////////////////////////
+int
+do_connect(Conn * from, Conn * to)
+{
+  assert(to->listen_s > 0);
+  int error;
+
+  // create a non-blocking socket
+  if ((from->s = create_nonblocking_socket()) < 0) {
+    from->state.state = STATE_ERROR;
+    return (from->s);
+  }
+  // connect
+  if (connect(from->s, (struct sockaddr *) &to->addr, sizeof(to->addr)) < 0) {
+    error = -errno;
+    if (error != -EINPROGRESS) {
+      ::close(from->s);
+      from->state.state = STATE_ERROR;
+      cout << "connect failed (" << error << ")" << endl;
+      return (error);
+    }
+  }
+  // success
+  cout << "connect is done" << endl;
+  from->state.state = STATE_IDLE;
+  return (from->s);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  do_listen_setup()
+//
+///////////////////////////////////////////////////////////
+int
+do_listen_setup(Conn * c, int port)
+{
+  int error;
+
+  c->addr.sin_family = AF_INET;
+  memset(&c->addr.sin_zero, 0, 8);
+  c->addr.sin_addr.s_addr = htonl(INADDR_ANY);
+  c->addr.sin_port = htons(port);
+
+  // create a non-blocking socket
+  if ((c->listen_s = create_nonblocking_socket()) < 0) {
+    c->state.state = STATE_ERROR;
+    return (c->listen_s);
+  }
+  // bind socket to port
+  if (bind(c->listen_s, (struct sockaddr *) &c->addr, sizeof(c->addr)) < 0) {
+    error = -errno;
+    ::close(c->listen_s);
+    c->state.state = STATE_ERROR;
+    cout << "bind failed (" << error << ")" << endl;
+    return (error);
+  }
+  // listen
+  if (listen(c->listen_s, 5) < 0) {
+    error = -errno;
+    ::close(c->listen_s);
+    c->state.state = STATE_ERROR;
+    cout << "listen failed (" << error << ")" << endl;
+    return (-1);
+  }
+  // success
+  cout << "listen is done" << endl;
+  c->state.state = STATE_IDLE;
+
+  return (c->listen_s);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  do_accept()
+//
+///////////////////////////////////////////////////////////
+int
+do_accept(Conn * c)
+{
+  assert(c->listen_s > 0);
+
+  // check if socket is ready for read
+  fd_set readfds;
+  struct timeval timeout;
+  int addrlen;
+
+  FD_ZERO(&readfds);
+  FD_SET(c->listen_s, &readfds);
+  timeout.tv_sec = 0;
+  timeout.tv_usec = 10;         /* 0.01 ms */
+
+
+  if (select(c->listen_s + 1, &readfds, 0, 0, &timeout) > 0) {
+    addrlen = sizeof(c->addr);
+    c->s = accept(c->listen_s, (struct sockaddr *) &c->addr, &addrlen);
+    if (c->s < 0) {
+      c->s = -errno;
+      cout << "accept failed (" << c->s << ")" << endl;
+      c->state.state = STATE_ERROR;
+      return (c->s);
+    }
+    if ((c->s = set_nonblocking_socket(c->s)) < 0) {
+      c->state.state = STATE_ERROR;
+      return (c->s);
+    }
+    c->state.state = STATE_IDLE;
+  }
+  cout << "accept is done" << endl;
+  return (c->s);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  create_nonblocking_socket()
+//
+///////////////////////////////////////////////////////////
+int
+create_nonblocking_socket()
+{
+  int s;
+
+  if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    s = -errno;
+    cout << "socket failed (" << s << ")" << endl;
+    return (s);
+  }
+  return (set_nonblocking_socket(s));
+}
+
+///////////////////////////////////////////////////////////
+//
+//  set_nonblocking_socket()
+//
+///////////////////////////////////////////////////////////
+int
+set_nonblocking_socket(int s)
+{
+  int error = 0;
+  int on = 1;
+
+  if (fcntl(s, F_SETFL, O_NDELAY) < 0) {
+    error = -errno;
+    ::close(s);
+    cout << "fcntl F_SETFD O_NDELAY failed (" << error << ")" << endl;
+    return (error);
+  }
+
+  return (s);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  do_shutdown()
+//
+///////////////////////////////////////////////////////////
+int
+do_shutdown(int s, Task_t task)
+{
+  int howto, error;
+
+  switch (task) {
+  case TASK_SHUTDOWN_OUTPUT:
+  case TASK_TRY_WRITE_THEN_SHUTDOWN_OUTPUT:
+    howto = 1;
+    break;
+  case TASK_SHUTDOWN_INPUT:
+    howto = 0;
+    break;
+  case TASK_SHUTDOWN_BOTH:
+  case TASK_TRY_WRITE_THEN_SHUTDOWN_BOTH:
+    howto = 2;
+    break;
+  default:
+    assert(!"expected a shutdown state");
+    break;
+  }
+  if (shutdown(s, howto) < 0) {
+    error = -errno;
+    cout << "shutdown failed (" << error << ")" << endl;
+    return (error);
+  }
+  // success
+  cout << "sutdowm is done" << endl;
+  return (0);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  do_try_read()
+//
+///////////////////////////////////////////////////////////
+int
+do_try_read(int s, char *buf, int length)
+{
+  int r;
+
+  if ((r = read(s, buf, length)) < 0) {
+    r = -errno;
+    if (r != -EWOULDBLOCK)      // EWOULDBLOCK == EAGAIN
+    {
+      cout << "read failed (" << r << ")" << endl;
+    }
+  } else if (r == 0) {
+    cout << "connection closed" << endl;
+  } else {
+    // read is successful
+    for (int i = 0; i < r; i++) {
+      cout << buf[i] << ' ';
+    }
+  }
+  return (r);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  do_try_write()
+//
+///////////////////////////////////////////////////////////
+int
+do_try_write(int s, char *buf, int length)
+{
+  int r;
+
+  if ((r = write(s, buf, length)) <= 0) {
+    r = -errno;
+    if (r != -EWOULDBLOCK) {
+      cout << "write failed (" << r << ")" << endl;
+    }
+  }
+  return (r);
+}
+
+///////////////////////////////////////////////////////////
+//
+//  setup_scenario()
+//
+///////////////////////////////////////////////////////////
+void
+setup_scenario(Scenario_t scenario)
+{
+  switch (scenario) {
+  case SERVER_WRITE_CLIENT_READ:
+    server_set_next_client_task[TASK_LISTEN_SETUP] = TASK_CONNECT;
+    client_set_next_server_task[TASK_CONNECT] = TASK_ACCEPT;
+    server_set_next_client_task[TASK_ACCEPT] = TASK_TRY_READ;
+    client_set_next_server_task[TASK_TRY_READ] = TASK_TRY_WRITE;
+    server_set_next_client_task[TASK_TRY_WRITE] = TASK_TRY_READ;
+    break;
+
+  case SERVER_SHUTDOWN_OUTPUT_CLIENT_TRY_READ:
+    server_set_next_client_task[TASK_LISTEN_SETUP] = TASK_CONNECT;
+    server_set_next_client_task[TASK_ACCEPT] = TASK_TRY_READ;
+    server_set_next_client_task[TASK_SHUTDOWN_OUTPUT] = TASK_TRY_READ;
+
+    client_set_next_server_task[TASK_CONNECT] = TASK_ACCEPT;
+    client_set_next_server_task[TASK_TRY_READ] = TASK_SHUTDOWN_OUTPUT;
+    break;
+
+  case SERVER_SHUTDOWN_INPUT_CLIENT_TRY_READ:
+    break;
+  case SERVER_SHUTDOWN_BOTH_CLIENT_TRY_READ:
+    break;
+  case SERVER_SHUTDOWN_OUTPUT_CLIENT_TRY_WRITE:
+    break;
+  case SERVER_SHUTDOWN_INPUT_CLIENT_TRY_WRITE:
+    break;
+  case SERVER_SHUTDOWN_BOTH_CLIENT_TRY_WRITE:
+    break;
+  case CLIENT_SHUTDOWN_OUTPUT_SERVER_TRY_READ:
+    break;
+  case CLIENT_SHUTDOWN_INPUT_SERVER_TRY_READ:
+    break;
+  case CLIENT_SHUTDOWN_BOTH_SERVER_TRY_READ:
+    break;
+  case CLIENT_SHUTDOWN_OUTPUT_SERVER_TRY_WRITE:
+    break;
+  case CLIENT_SHUTDOWN_INPUT_SERVER_TRY_WRITE:
+    break;
+  case CLIENT_SHUTDOWN_BOTH_SERVER_TRY_WRITE:
+    break;
+  case SERVER_WRITE_IMMIDIATE_SHUTDOWN_CLIENT_WRITE:
+    server_set_next_client_task[TASK_LISTEN_SETUP] = TASK_CONNECT;
+    client_set_next_server_task[TASK_CONNECT] = TASK_ACCEPT;
+    server_set_next_client_task[TASK_ACCEPT] = TASK_TRY_READ;
+    client_set_next_server_task[TASK_TRY_READ] = TASK_TRY_WRITE_THEN_SHUTDOWN_BOTH;
+    server_set_next_client_task[TASK_TRY_WRITE_THEN_SHUTDOWN_BOTH] = TASK_TRY_READ;
+    server_set_next_client_task[TASK_DONE] = TASK_TRY_READ;
+    server.state.nbytes_write = sizeof(write_buf);
+    break;
+
+  }
+  return;
+}
+
+void
+dequeue_task(Conn * c)
+{
+  if (c->state.tasks_count == 0)
+    return;
+
+  c->state.tasks_count--;
+  for (int i = 0; i < c->state.tasks_count; i++) {
+    c->state.tasks[i] = c->state.tasks[i + 1];
+  }
+  return;
+}
diff --git a/proxy/http/testheaders.cc b/proxy/http/testheaders.cc
new file mode 100644
index 00000000..f1813af5
--- /dev/null
+++ b/proxy/http/testheaders.cc
@@ -0,0 +1,132 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_string.h"    
+#include "HttpTransact.h"
+#include "HttpTransactHeaders.h"
+
+#define MAX_FIELD_VALUE_SIZE 512
+
+char request1[] =
+  "GET http://people.netscape.com/jwz/hacks-1.gif HTTP/1.0\r\n"
+  "If-Modified-Since: Wednesday, 26-Feb-97 06:58:17 GMT; length=842\r\n"
+  "Referer: http://people.netscape.com/jwz/index.html\r\n"
+  "Proxy-Connection: Referer, User-Agent\r\n"
+  "Vary: If-Modified-Since, Host, Accept, Proxy-Connection, Crap\r\n"
+  "User-Agent:  Mozilla/3.01 (X11; I; Linux 2.0.28 i586)\r\n"
+  "Crappy-Field: value1-on-line-1, value2-on-line-1\r\n"
+  "Crappy-Field: value-on-line-2\r\n"
+  "Blowme: Crapshoot\r\n"
+  "Pragma: no-cache\r\n"
+  "Host: people.netscape.com\r\n" "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, */*\r\n\r\n";
+
+char response1[] =
+  "HTTP/1.0 200 !132d63600000000000000200 OK\r\n"
+  "Server: WN/1.14.6\r\n"
+  "Date: Tue, 26 Aug 1997 21:51:23 GMT\r\n"
+  "Last-modified: Fri, 25 Jul 1997 15:07:05 GMT\r\n"
+  "Content-type: text/html\r\n"
+  "Content-length: 3831\r\n" "Accept-Range: bytes, lines\r\n" "Title: General Casualty - Home Page\r\n";
+
+char response2[] =
+  "HTTP/1.0 304 Not Modified\r\n"
+  "Date: Wed, 30 Jul 1997 22:31:20 GMT\r\n"
+  "Via: 1.0 trafficserver.apache.org (Traffic-Server/1.0b [ONM])\r\n" "Server: Apache/1.1.1\r\n\r\n";
+
+void print_header(HttpHeader * header);
+
+void
+readin_header(HttpHeader * new_header, char *req_buffer, int length)
+{
+  int bytes_used = 0;
+
+  const char *tmp = req_buffer;
+  while (*tmp) {
+    if (new_header->parse(tmp, length, &bytes_used, false, HTTP_MESSAGE_TYPE_REQUEST) != 0)
+      break;
+    tmp += length;
+  }
+}
+
+// void print_header(HttpHeader *header)
+// {
+//     bool done = false;
+//     int bytes_used = 0;
+//     char dumpbuf;
+
+//     header->dump_setup ();
+//     while (!done) {
+//      header->dump (&dumpbuf, 1, &bytes_used, &done);
+//      putc (dumpbuf, stdout);
+//     }
+// }
+
+inline void
+make_comma_separated_header_field_value(HttpHeader * header, const char *fieldname, char *full_str)
+{
+  MIMEHeaderFieldValue *hfv;
+  const char *str;
+
+  hfv = header->mime().get(fieldname, strlen(fieldname));
+
+  /* This if is needed to put in the commas correctly */
+  if (hfv) {
+    str = hfv->get_raw();
+    ink_strlcat(full_str, str, MAX_FIELD_VALUE_SIZE);
+    hfv = hfv->next();
+  }
+  while (hfv) {
+    str = hfv->get_raw();
+    ink_strlcat(full_str, ", ", MAX_FIELD_VALUE_SIZE);
+    ink_strlcat(full_str, str, MAX_FIELD_VALUE_SIZE);
+    hfv = hfv->next();
+  }
+}
+
+void
+test_headers()
+{
+  HttpHeader *req;
+  char str1[MAX_FIELD_VALUE_SIZE];
+  char str2[MAX_FIELD_VALUE_SIZE];
+  char str3[MAX_FIELD_VALUE_SIZE];
+
+  req = new(HttpHeaderAllocator.alloc())HttpHeader();
+
+  readin_header(req, request1, sizeof(request1));
+  printf("[test_headers] This is the header that was read in:\n");
+  print_header(req);
+
+  printf("[test_headers] Ok, let us see what the Proxy-Connection field is ...\n");
+  printf("[test_headers] the value of Blowme is %s\n", req->mime().get_raw("Blowme", strlen("Blowme")));
+//     make_comma_separated_header_field_value(req, "Proxy-Connection", str1);
+//     printf("[test_headers] Proxy-Connection is %s\n", str1);
+
+//     printf("[test_headers] Let us try that with crappy-field...\n");
+//     make_comma_separated_header_field_value(req, "Crappy-Field", str2);
+//     printf("[test_headers] Crappy-Field is : %s\n", str2);
+
+//     printf("[test_headers] Let us try that with Vary, now...\n");
+//     make_comma_separated_header_field_value(req, "Vary", str3);
+//     printf("[test_headers] Vary is %s\n", str3);
+}
diff --git a/proxy/ink_icon.ico b/proxy/ink_icon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..028242a01d03082ee0b09fc539582fb2fb16bd50
GIT binary patch
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diff --git a/proxy/issues.txt b/proxy/issues.txt
new file mode 100644
index 00000000..b015e43c
--- /dev/null
+++ b/proxy/issues.txt
@@ -0,0 +1,252 @@
+******************************************************************************
+*                                                                            *
+*         Open Issues, Queustions, and Comments about the I/O Core           *
+*                                                                            *
+******************************************************************************
+
+
++--------------+
+| proxy/List.h |
++--------------+
+
+DLL<class T>::in((C *c,Link<C> &l)
+
+	what is the meaning of in() ?
+	- is c a member of this list ?
+	- is c a member of some list ?
+
++-----------------------+
+| proxy/NetProcessor.cc |
++-----------------------+
+
+server open
+
+	The user interface for accepting on a port with the server()
+	call is a bit weird.  We currently get notified that a new
+	connection occurred as a side-effect of the vc clone() call.
+	That's really a hack.
+
+	Can we pass in a continuation for notification, list we do with
+	all these other calls?
+
+void detach_read();
+void detach_write();
+	Hide VConnection::detach_read(VIO * vio = NULL) and
+	     VConnection::detach_write(VIO * vio = NULL)
+
++---------------------+
+| proxy/VConnection.h |
++---------------------+
+
+old code
+
+	How many of the methods in VConnection.h are really supported
+	anymore?  Can we delete the vestiges of old designs so we don't
+	confuse people?
+
+inline void VConnection::clear_vio_queue()
+
+	When blowing away unexecuted VIOs, if there is a passing
+	continuation, we call it with a return_state of -1.  What
+	does -1 signify, and what other values are legal?  Can we be
+	sure the user won't use -1?
+
+	We need to document these APIs.
+
+Mutex * mutex
+
+	What is the meaning of mutex field in class VConnection. When is it
+	used ? It looks that IOVConnection constructor creates it, but never
+	uses it. It also looks that locking is done through the mutex passed in
+	VIO. Should we remove the mutex field from class VConnection ?
+
+activate_io()
+
+    Is it part of the public interface ?
+		
+
++---------------+
+| proxy/Event.h |
++---------------+
+
+void EventContinuation::disable()
+
+	We disable timeout events by setting their timeout to a large
+	value.  We disable quiescence events by patching them out of the
+	queue.  Wouldn't it be better to have disabling work the same way
+	for both?
+
+	For example, could disabling timeout events just move the events
+	from the active queue to the disabled queue?
+
+	Finally, the disabled timeout value is set to 200 years past some
+	unknown time in the past.  Do we have any guarantees about that
+	unknown base reference point?  I'd hate the base point to be set to
+	200 years in the past at some new OS revision, and our timeouts
+	start acting screwy.  Should we change the ink_hrtime routines to
+	explicitly subtract off some startup base time, such as the time
+	when the system starts up?  This way ink_hrtime would represent
+	nanoseconds since proxy startup.
+
+timeout_absolute
+
+	What is this field?  The time of the final timeout, after which no
+	timeouts should occur?
+
++----------------+
+| proxy/Event.cc |
++----------------+
+
+types of timeouts
+
+	I need to precisely understand the different types of timeouts,
+	such as absolute, periodic, immediate.  Can I timeout be both
+	absolute & periodic?  The intended semantics aren't immediately
+	obvious from the code alone.
+
+void EventThread::execute()
+
+	What is the purpose of the execute_hook_main() and execute_hook_init_select()
+	virtual hooks?
+
+	We have code to check for reference counts going to zero in the
+	EventThread main loop.  Is it possible to have a global memory
+	manager do this checking, or have the decrementer do this?  Are
+	we doing this to make the locking easier?  It seems minorly
+	annoying for every Thread to have to worry about its own
+	garbage collection.
+
+void EventContinuation::check_timeout()
+
+	What does the (timeout_at >= EVENT_DISABLE_TIMEOUT) do?  It
+	presumably handles disabled timeouts, but I'm not sure how.
+
+	There appears to be an abstraction violation here, where
+	IOVConnection and EventContinuation functionality is mixed.  We
+	are casting the EventContinuation into an IOVConnection, and running
+	IOVConnection methods on the continuation.  There appear to be two
+	bits: read_event and write_event that enable this.
+
+	If EventContinuation and IOVConnection are really supposed to be
+	separate, then we should probably fix up this routine.
+
+	Also, periodic events have their timeout_at value incremented by the
+	timeout period, independent of the current wallclock time.  It seems
+	possible for small timeout periods, and some processing delay, that
+	the timeout timestamps could end up shifting permanently behind the
+	real wallclock time.  In other words, the scheduler can't keep up
+	with the timing requests.  Is this something we should check for?
+
+void EventContinuation::destroy_event()
+
+	The semantics of destruction appear to be undocumented.  What happens?
+	What should the user expect?  What is the free list used for?
+
+void EventThread::execute_hook_init()
+
+	Is execute_hook_init() only called at thread startup time?  It appears
+	that execute_hook_init() is called once each time the execute() main loop
+	is called --- is the main loop only invoked once?
+
+	If this is only called once, why do we have to sort the timeout
+	events?  It seems like no events should be set up yet, right?
+
+	I'm confused about the control flow to this routine.
+
+static void sort_timeout_events(EventThread * thr)
+
+	We patch out the list from the EventThread's timeout queue and
+	explicitly set head to NULL.  We should have a method for doing
+	this, so we can change the structure of the DLL.
+
+EventContinuation::add_timeout()
+
+	After scanning for the right timeout slot, why do we need this line?
+
+	    cur = prev ? prev->timeout.next : thr()->timeout_events.head;
+
+quiescence
+
+	Is quiescence implemented at all?  What is it intended to do?  Do
+	we care about it?  Should we keep the support?
+
+void EventThread::execute_hook_scan_events(int n)
+
+	What is a "zombie" event?
+
+void EventContinuation::reset_periodic_timeout(ink_hrtime t)
+
+	Why do we remove the timeout twice?
+
++-------------+
+| proxy/IO.cc |
++-------------+
+
+IO semantics
+
+	What is the basic model implemented by IO processors?  Is it the
+	"open vconnection and enqueue operations on the vconnection" model?
+	IO.cc doesn't seem to implement open(), but it does implement
+	read/write an real connections, so I'm confused.
+
+	Are the read_event and write_event flags still used, or are they
+	superceded by active_read_vio and active_write_vio?
+
+void IOProcessor::accept_read
+
+	What is accept_read?  Why is the accept stuff in IO?
+
+void IOThread::drain_queues()
+
+	Why two input queues?  What purpose does each serve?
+
+void spawn_io_event(IOThread * thr, IOVConnection * e)
+
+	How can destroyed events end up here?
+
+	The relationship of IOVConnections and vio_queues still
+	isn't quite clear to me.
+
+	What does activate_io() do?
+
+	Why the close case, what do the read_vio and write_vio flags
+	signify, and how do they relate to the vio queue?
+
+void IOThread::execute_hook_scan_events(int n)
+
+	Should accept handling really be handled here?
+
+	There are a lot of jumps to Lrestart, running the entire scan
+	from the beginning.  Will this ever infinite loop?  Could we
+	do it more efficiently & cleanly?
+
+	This comment is in the code:
+
+		??? shouldn't we update the timeout queue first ???
+
+	I don't understand how flush() works.
+
++---------------------------+
+| proxy/DiskProcessor.h     |
++---------------------------+
+
+new do_io() interface
+
+    Are open_fd(), close(), read(), write(), fseek() and lstat() part of
+	the interface ? Sould they be removed from the DiskIOVConnection
+	interface ?
+
+void * buf;
+    What is the meaning of this field ? Where is it used ?
+	Is it part of the public interface ?
+		
+
++---------------------------+
+| lib/ts/ink_hrtime.h |
++---------------------------+
+
+conversion routines
+
+	I added a bunch of hrtime-->units and units-->hrtime converters
+	that we should use.
+
diff --git a/proxy/logcat.cc b/proxy/logcat.cc
new file mode 100644
index 00000000..8123ee6c
--- /dev/null
+++ b/proxy/logcat.cc
@@ -0,0 +1,346 @@
+/** @file
+
+  Contains main function definition for logcat
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "ink_config.h"
+#include "ink_file.h"
+#include "I_Layout.h"
+#include "I_Version.h"
+
+#define PROGRAM_NAME        "traffic_logcat"
+#define MAX_LOGBUFFER_SIZE  65536
+
+#include <poll.h>
+
+#include "LogStandalone.cc"
+
+#include "LogAccess.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogFile.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogBuffer.h"
+#include "LogUtils.h"
+#include "LogSock.h"
+#include "LogPredefined.h"
+#include "Log.h"
+
+// logcat-specific command-line flags
+static int version_flag = 0;
+static int help = 0;
+static int squid_flag = 0;
+static int follow_flag = 0;
+static int clf_flag = 0;
+static int elf_flag = 0;
+static int elf2_flag = 0;
+static int auto_filenames = 0;
+static int overwrite_existing_file = 0;
+static char output_file[1024];
+int auto_clear_cache_flag = 0;
+
+static const ArgumentDescription argument_descriptions[] = {
+
+  {"output_file", 'o', "Specify output file", "S1023", &output_file, NULL, NULL},
+  {"auto_filenames", 'a', "Automatically generate output names",
+   "T", &auto_filenames, NULL, NULL},
+  {"follow", 'f', "Follow the log file as it grows", "T", &follow_flag, NULL, NULL},
+  {"clf", 'C', "Convert to Common Logging Format", "T", &clf_flag, NULL, NULL},
+  {"elf", 'E', "Convert to Extended Logging Format", "T", &elf_flag, NULL, NULL},
+  {"help", 'h', "Give this help", "T", &help, NULL, NULL},
+  {"squid", 'S', "Convert to Squid Logging Format", "T", &squid_flag, NULL, NULL},
+  {"debug_tags", 'T', "Colon-Separated Debug Tags", "S1023", error_tags, NULL, NULL},
+  {"version", 'V', "Print Version Id", "T", &version_flag, NULL, NULL},
+  {"overwrite_output", 'w', "Overwrite existing output file(s)", "T",
+   &overwrite_existing_file, NULL, NULL},
+  {"elf2", '2', "Convert to Extended2 Logging Format", "T", &elf2_flag, NULL,
+   NULL}
+};
+
+static const char *USAGE_LINE = "Usage: " PROGRAM_NAME " [-o output-file | -a] [-CEhS"
+#ifdef DEBUG
+  "T"
+#endif
+  "Vw2] [input-file ...]";
+
+
+
+static int
+process_file(int in_fd, int out_fd)
+{
+  char buffer[MAX_LOGBUFFER_SIZE];
+  int nread, buffer_bytes;
+  unsigned bytes = 0;
+
+  while (true) {
+    // read the next buffer from file descriptor
+    //
+    Debug("logcat", "Reading buffer ...");
+    memset(buffer, 0, sizeof(buffer));
+
+    // read the first 8 bytes of the header, which will give us the
+    // cookie and the version number.
+    //
+    unsigned first_read_size = sizeof(uint32_t) + sizeof(uint32_t);
+    unsigned header_size = sizeof(LogBufferHeader);
+    LogBufferHeader *header = (LogBufferHeader *) & buffer[0];
+
+    nread = read(in_fd, buffer, first_read_size);
+    if (!nread || nread == EOF)
+      return 0;
+
+    // ensure that this is a valid logbuffer header
+    //
+    if (header->cookie != LOG_SEGMENT_COOKIE) {
+      fprintf(stderr, "Bad LogBuffer!\n");
+      return 1;
+    }
+    // read the rest of the header
+    //
+    unsigned second_read_size = header_size - first_read_size;
+
+    nread = read(in_fd, &buffer[first_read_size], second_read_size);
+    if (!nread || nread == EOF) {
+      if (follow_flag)
+        return 0;
+
+      fprintf(stderr, "Bad LogBufferHeader read!\n");
+      return 1;
+    }
+    // read the rest of the buffer
+    //
+    uint32_t byte_count = header->byte_count;
+
+    if (byte_count > sizeof(buffer)) {
+      fprintf(stderr, "Buffer too large!\n");
+      return 1;
+    }
+    buffer_bytes = byte_count - header_size;
+    if (buffer_bytes == 0)
+      return 0;
+    if (buffer_bytes < 0) {
+      fprintf(stderr, "No buffer body!\n");
+      return 1;
+    }
+    // Read the next full buffer (allowing for "partial" reads)
+    nread = 0;
+    while (nread < buffer_bytes) {
+      int rc = read(in_fd, &buffer[header_size] + nread, buffer_bytes - nread);
+
+      if ((rc == EOF) && (!follow_flag)) {
+        fprintf(stderr, "Bad LogBuffer read!\n");
+        return 1;
+      }
+
+      if (rc > 0)
+        nread += rc;
+    }
+
+    if (nread > buffer_bytes) {
+      fprintf(stderr, "Read too many bytes!\n");
+      return 1;
+    }
+    // see if there is an alternate format request from the command
+    // line
+    //
+    const char * alt_format = NULL;
+    if (squid_flag)
+      alt_format = PreDefinedFormatInfo::squid;
+    if (clf_flag)
+      alt_format = PreDefinedFormatInfo::common;
+    if (elf_flag)
+      alt_format = PreDefinedFormatInfo::extended;
+    if (elf2_flag)
+      alt_format = PreDefinedFormatInfo::extended2;
+
+    // convert the buffer to ascii entries and place onto stdout
+    //
+    if (header->fmt_fieldlist()) {
+      bytes += LogFile::write_ascii_logbuffer(header, out_fd, ".", alt_format);
+    } else {
+      // TODO investigate why this buffer goes wonky
+    }
+  }
+}
+
+static int
+open_output_file(char *output_file)
+{
+  int file_desc = 0;
+
+  if (!overwrite_existing_file) {
+    if (access(output_file, F_OK)) {
+      if (errno != ENOENT) {
+        fprintf(stderr, "Error accessing output file %s: ", output_file);
+        perror(0);
+        file_desc = -1;
+      }
+    } else {
+      fprintf(stderr, "Error, output file %s already exists.\n" "Select a different filename or use the -w flag\n",
+              output_file);
+      file_desc = -1;
+    }
+  }
+
+  if (file_desc == 0) {
+    file_desc = open(output_file, O_WRONLY | O_TRUNC | O_CREAT, 0640);
+
+    if (file_desc < 0) {
+      fprintf(stderr, "Error while opening output file %s: ", output_file);
+      perror(0);
+    }
+  }
+
+  return file_desc;
+}
+
+
+/*-------------------------------------------------------------------------
+  main
+  -------------------------------------------------------------------------*/
+
+int
+main(int /* argc ATS_UNUSED */, char *argv[])
+{
+  enum
+  {
+    NO_ERROR = 0,
+    CMD_LINE_OPTION_ERROR = 1,
+    DATA_PROCESSING_ERROR = 2
+  };
+
+  // build the application information structure
+  //
+  appVersionInfo.setup(PACKAGE_NAME,PROGRAM_NAME, PACKAGE_VERSION, __DATE__,
+                       __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+
+  // Before accessing file system initialize Layout engine
+  Layout::create();
+  // process command-line arguments
+  //
+  output_file[0] = 0;
+  process_args(argument_descriptions, countof(argument_descriptions), argv, USAGE_LINE);
+
+  // check for the version number request
+  //
+  if (version_flag) {
+    fprintf(stderr, "%s\n", appVersionInfo.FullVersionInfoStr);
+    _exit(NO_ERROR);
+  }
+  // check for help request
+  //
+  if (help) {
+    usage(argument_descriptions, countof(argument_descriptions), USAGE_LINE);
+    _exit(NO_ERROR);
+  }
+  // check that only one of the -o and -a options was specified
+  //
+  if (output_file[0] != 0 && auto_filenames) {
+    fprintf(stderr, "Error: specify only one of -o <file> and -a\n");
+    _exit(CMD_LINE_OPTION_ERROR);
+  }
+  // initialize this application for standalone logging operation
+  //
+  init_log_standalone_basic(PROGRAM_NAME);
+
+  Log::init(Log::NO_REMOTE_MANAGEMENT | Log::LOGCAT);
+
+  // setup output file
+  //
+  int out_fd = STDOUT_FILENO;
+  if (output_file[0] != 0) {
+    out_fd = open_output_file(output_file);
+
+    if (out_fd < 0) {
+      _exit(DATA_PROCESSING_ERROR);
+    }
+  } else if (!auto_filenames) {
+    out_fd = STDOUT_FILENO;
+  }
+  // process file arguments
+  //
+  int error = NO_ERROR;
+
+  if (n_file_arguments) {
+    int bin_ext_len = strlen(LOG_FILE_BINARY_OBJECT_FILENAME_EXTENSION);
+    int ascii_ext_len = strlen(LOG_FILE_ASCII_OBJECT_FILENAME_EXTENSION);
+
+    for (unsigned i = 0; i < n_file_arguments; ++i) {
+      int in_fd = open(file_arguments[i], O_RDONLY);
+      if (in_fd < 0) {
+        fprintf(stderr, "Error opening input file %s: ", file_arguments[i]);
+        perror(0);
+        error = DATA_PROCESSING_ERROR;
+      } else {
+#if HAVE_POSIX_FADVISE
+        posix_fadvise(in_fd, 0, 0, POSIX_FADV_DONTNEED);
+#endif
+        if (auto_filenames) {
+          // change .blog to .log
+          //
+          int n = strlen(file_arguments[i]);
+          int copy_len = (n >= bin_ext_len ? (strcmp(&file_arguments[i][n - bin_ext_len],
+                                                     LOG_FILE_BINARY_OBJECT_FILENAME_EXTENSION) ==
+                                              0 ? n - bin_ext_len : n) : n);
+
+          char *out_filename = (char *)ats_malloc(copy_len + ascii_ext_len + 1);
+
+          memcpy(out_filename, file_arguments[i], copy_len);
+          memcpy(&out_filename[copy_len], LOG_FILE_ASCII_OBJECT_FILENAME_EXTENSION, ascii_ext_len);
+          out_filename[copy_len + ascii_ext_len] = 0;
+
+          out_fd = open_output_file(out_filename);
+          ats_free(out_filename);
+
+          if (out_fd < 0) {
+            error = DATA_PROCESSING_ERROR;
+            continue;
+          }
+        }
+        if (follow_flag)
+          lseek(in_fd, 0, SEEK_END);
+
+        while (true) {
+          if (process_file(in_fd, out_fd) != 0) {
+            error = DATA_PROCESSING_ERROR;
+            break;
+          }
+          if (!follow_flag)
+            break;
+          else
+            usleep(10000);      // This avoids burning CPU, using poll() would have been nice, but doesn't work I think.
+        }
+      }
+    }
+  } else {
+    // read from stdin, allow STDIN to go EOF a few times until we get synced
+    //
+    int tries = 3;
+    while (--tries >= 0) {
+      if (process_file(STDIN_FILENO, out_fd) != 0)
+        tries = -1;
+    }
+  }
+
+  _exit(error);
+}
diff --git a/proxy/logging/Log.cc b/proxy/logging/Log.cc
new file mode 100644
index 00000000..9ee618ee
--- /dev/null
+++ b/proxy/logging/Log.cc
@@ -0,0 +1,1498 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ Log.cc
+
+ This file defines the implementation of the static Log class, which is
+ primarily used as a namespace.  That is, there are no Log objects, but the
+ class scope and static members provide a protected namespace for all of
+ the logging routines and enumerated types.  When C++ namespaces are more
+ widely-implemented, Log could be implemented as a namespace rather than a
+ class.
+
+ ***************************************************************************/
+#include "libts.h"
+
+#include "Error.h"
+#include "Main.h"
+#include "P_EventSystem.h"
+#include "P_Net.h"
+#include "I_Machine.h"
+#include "HTTP.h"
+
+#include "LogAccess.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogFile.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogBuffer.h"
+#include "LogUtils.h"
+#include "Log.h"
+#include "LogSock.h"
+#include "SimpleTokenizer.h"
+
+#include "ink_apidefs.h"
+
+#define PERIODIC_TASKS_INTERVAL 5 // TODO: Maybe this should be done as a config option
+
+// Log global objects
+inkcoreapi LogObject *Log::error_log = NULL;
+LogFieldList Log::global_field_list;
+LogFormat *Log::global_scrap_format = NULL;
+LogObject *Log::global_scrap_object = NULL;
+Log::LoggingMode Log::logging_mode = LOG_MODE_NONE;
+
+// Flush thread stuff
+EventNotify *Log::preproc_notify;
+EventNotify *Log::flush_notify;
+InkAtomicList *Log::flush_data_list;
+
+// Collate thread stuff
+EventNotify Log::collate_notify;
+ink_thread Log::collate_thread;
+int Log::collation_accept_file_descriptor;
+int Log::collation_preproc_threads;
+int Log::collation_port;
+
+// Log private objects
+int Log::init_status = 0;
+int Log::config_flags = 0;
+bool Log::logging_mode_changed = false;
+
+// Hash table for LogField symbols
+InkHashTable *Log::field_symbol_hash = 0;
+
+RecRawStatBlock *log_rsb;
+
+/*-------------------------------------------------------------------------
+  Log::change_configuration
+
+  This routine is invoked when the current LogConfig object says it needs
+  to be changed (as the result of a manager callback).
+  -------------------------------------------------------------------------*/
+
+LogConfig *Log::config = NULL;
+static unsigned log_configid = 0;
+
+void
+Log::change_configuration()
+{
+  LogConfig * prev = Log::config;
+  LogConfig * new_config = NULL;
+
+  Debug("log-config", "Changing configuration ...");
+
+  new_config = new LogConfig;
+  ink_assert(new_config != NULL);
+  new_config->read_configuration_variables();
+
+  // grab the _APImutex so we can transfer the api objects to
+  // the new config
+  //
+  ink_mutex_acquire(prev->log_object_manager._APImutex);
+  Debug("log-api-mutex", "Log::change_configuration acquired api mutex");
+
+  new_config->init(Log::config);
+
+  // Make the new LogConfig active.
+  ink_atomic_swap(&Log::config, new_config);
+
+  // XXX There is a race condition with API objects. If TSTextLogObjectCreate()
+  // is called before the Log::config swap, then it will be blocked on the lock
+  // on the *old* LogConfig and register it's LogObject with that manager. If
+  // this happens, then the new TextLogObject will be immediately lost. Traffic
+  // Server would crash the next time the plugin referenced the freed object.
+
+  ink_mutex_release(prev->log_object_manager._APImutex);
+  Debug("log-api-mutex", "Log::change_configuration released api mutex");
+
+  // Register the new config in the config processor; the old one will now be scheduled for a
+  // future deletion. We don't need to do anything magical with refcounts, since the
+  // configProcessor will keep a reference count, and drop it when the deletion is scheduled.
+  configProcessor.set(log_configid, new_config);
+
+  // If we replaced the logging configuration, flush any log
+  // objects that weren't transferred to the new config ...
+  prev->log_object_manager.flush_all_objects();
+
+  Debug("log-config", "... new configuration in place");
+}
+
+/*-------------------------------------------------------------------------
+  PERIODIC EVENTS
+
+  There are a number of things that need to get done on a periodic basis,
+  such as checking the amount of space used, seeing if it's time to roll
+  files, and flushing idle log buffers.  Most of these tasks require having
+  exclusive access to the back-end structures, which is controlled by the
+  flush_thread.  Therefore, we will simply instruct the flush thread to
+  execute a periodic_tasks() function once per period.  To ensure that the
+  tasks are executed AT LEAST once each period, we'll register a call-back
+  with the system and trigger the flush thread's condition variable.  To
+  ensure that the tasks are executed AT MOST once per period, the flush
+  thread will keep track of executions per period.
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  PeriodicWakeup
+
+  This continuation is invoked each second to wake-up the flush thread,
+  just in case it's sleeping on the job.
+  -------------------------------------------------------------------------*/
+
+struct PeriodicWakeup;
+typedef int (PeriodicWakeup::*PeriodicWakeupHandler)(int, void *);
+struct PeriodicWakeup : Continuation
+{
+  int m_preproc_threads;
+  int m_flush_threads;
+
+  int wakeup (int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+      for (int i = 0; i < m_preproc_threads; i++) {
+        Log::preproc_notify[i].signal();
+      }
+      for (int i = 0; i < m_flush_threads; i++) {
+        Log::flush_notify[i].signal();
+      }
+      return EVENT_CONT;
+  }
+
+  PeriodicWakeup (int preproc_threads, int flush_threads) :
+    Continuation (new_ProxyMutex()),
+    m_preproc_threads(preproc_threads),
+    m_flush_threads(flush_threads)
+  {
+      SET_HANDLER ((PeriodicWakeupHandler)&PeriodicWakeup::wakeup);
+  }
+};
+
+/*-------------------------------------------------------------------------
+  Log::periodic_tasks
+
+  This function contains all of the tasks that need to be done each
+  PERIODIC_TASKS_INTERVAL seconds.
+  -------------------------------------------------------------------------*/
+
+void
+Log::periodic_tasks(long time_now)
+{
+  Debug("log-api-mutex", "entering Log::periodic_tasks");
+
+  if (logging_mode_changed || Log::config->reconfiguration_needed) {
+    Debug("log-config", "Performing reconfiguration, init status = %d", init_status);
+
+    if (logging_mode_changed) {
+      int val = (int) REC_ConfigReadInteger("proxy.config.log.logging_enabled");
+
+      if (val<LOG_MODE_NONE || val> LOG_MODE_FULL) {
+        logging_mode = LOG_MODE_FULL;
+        Warning("proxy.config.log.logging_enabled has an invalid " "value setting it to %d", logging_mode);
+      } else {
+        logging_mode = (LoggingMode) val;
+      }
+      logging_mode_changed = false;
+    }
+    // even if we are disabling logging, we call change configuration
+    // so that log objects are flushed
+    //
+    change_configuration();
+  } else if (logging_mode > LOG_MODE_NONE || config->collation_mode == Log::COLLATION_HOST ||
+             config->has_api_objects()) {
+    Debug("log-periodic", "Performing periodic tasks");
+
+    // Check if space is ok and update the space used
+    //
+    if (config->space_is_short() || time_now % config->space_used_frequency == 0) {
+      Log::config->update_space_used();
+    }
+
+    // See if there are any buffers that have expired
+    //
+    Log::config->log_object_manager.check_buffer_expiration(time_now);
+
+    // Check if we received a request to roll, and roll if so, otherwise
+    // give objects a chance to roll if they need to
+    //
+    int num_rolled = 0;
+
+    if (Log::config->roll_log_files_now) {
+      if (error_log) {
+        num_rolled += error_log->roll_files(time_now);
+      }
+      if (global_scrap_object) {
+        num_rolled += global_scrap_object->roll_files(time_now);
+      }
+      num_rolled += Log::config->log_object_manager.roll_files(time_now);
+      Log::config->roll_log_files_now = false;
+    } else {
+      if (error_log) {
+        num_rolled += error_log->roll_files(time_now);
+      }
+      if (global_scrap_object) {
+        num_rolled += global_scrap_object->roll_files(time_now);
+      }
+      num_rolled += Log::config->log_object_manager.roll_files(time_now);
+    }
+
+  }
+}
+
+/*-------------------------------------------------------------------------
+  MAIN INTERFACE
+  -------------------------------------------------------------------------*/
+struct LoggingPreprocContinuation: public Continuation
+{
+  int m_idx;
+
+  int mainEvent(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+  {
+    Log::preproc_thread_main((void *)&m_idx);
+    return 0;
+  }
+
+  LoggingPreprocContinuation(int idx):Continuation(NULL), m_idx(idx)
+  {
+    SET_HANDLER(&LoggingPreprocContinuation::mainEvent);
+  }
+};
+
+struct LoggingFlushContinuation: public Continuation
+{
+  int m_idx;
+
+  int mainEvent(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+  {
+    Log::flush_thread_main((void *)&m_idx);
+    return 0;
+  }
+
+  LoggingFlushContinuation(int idx):Continuation(NULL), m_idx(idx)
+  {
+    SET_HANDLER(&LoggingFlushContinuation::mainEvent);
+  }
+};
+
+struct LoggingCollateContinuation: public Continuation
+{
+  int mainEvent(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+  {
+    Log::collate_thread_main(NULL);
+    return 0;
+  }
+
+  LoggingCollateContinuation():Continuation(NULL)
+  {
+    SET_HANDLER(&LoggingCollateContinuation::mainEvent);
+  }
+};
+
+/*-------------------------------------------------------------------------
+  Log::init_fields
+
+  Define the available logging fields.
+  This used to be part of the init() function, but now is separate so that
+  standalone programs that do not require more services (e.g., that do not
+  need to read records.config) can just call init_fields.
+
+  Note that the LogFields are added to the list with the copy flag false so
+  that the LogFieldList destructor will reclaim this memory.
+  -------------------------------------------------------------------------*/
+void
+Log::init_fields()
+{
+  if (init_status & FIELDS_INITIALIZED)
+    return;
+
+  LogField *field;
+
+  //
+  // Create a hash table that will be used to find the global field
+  // objects from their symbol names in a rapid manner.
+  //
+  field_symbol_hash = ink_hash_table_create(InkHashTableKeyType_String);
+
+  // client -> proxy fields
+  field =new LogField("client_host_ip", "chi",
+                      LogField::IP,
+                      &LogAccess::marshal_client_host_ip,
+                      &LogAccess::unmarshal_ip_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "chi", field);
+
+  field = new LogField("client_host_port", "chp",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_host_port,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "chp", field);
+
+  field = new LogField("client_host_ip_hex", "chih",
+                       LogField::IP,
+                       &LogAccess::marshal_client_host_ip,
+                       &LogAccess::unmarshal_ip_to_hex);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "chih", field);
+
+  field = new LogField ("client_auth_user_name", "caun",
+                        LogField::STRING,
+                        &LogAccess::marshal_client_auth_user_name,
+                        (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add (field, false);
+  ink_hash_table_insert (field_symbol_hash, "caun", field);
+
+  field = new LogField("plugin_identity_id", "piid",
+                       LogField::sINT,
+                       &LogAccess::marshal_plugin_identity_id,
+                       reinterpret_cast<LogField::UnmarshalFunc>(&LogAccess::unmarshal_int_to_str));
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "piid", field);
+
+  field = new LogField("plugin_identity_tag", "pitag",
+                       LogField::STRING,
+                       &LogAccess::marshal_plugin_identity_tag,
+                       reinterpret_cast<LogField::UnmarshalFunc>(&LogAccess::unmarshal_str));
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pitag", field);
+
+  field = new LogField("client_req_timestamp_sec", "cqts",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_timestamp_sec,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqts", field);
+
+  field = new LogField("client_req_timestamp_hex_sec", "cqth",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_timestamp_sec,
+                       &LogAccess::unmarshal_int_to_str_hex);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqth", field);
+
+  field = new LogField("client_req_timestamp_squid", "cqtq",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_timestamp_sec,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqtq", field);
+
+  field = new LogField("client_req_timestamp_netscape", "cqtn",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_timestamp_sec,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqtn", field);
+
+  field = new LogField("client_req_timestamp_date", "cqtd",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_timestamp_sec,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqtd", field);
+
+  field = new LogField("client_req_timestamp_time", "cqtt",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_timestamp_sec,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqtt", field);
+
+  field = new LogField("client_req_text", "cqtx",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_text,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_http_text);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqtx", field);
+
+  field = new LogField("client_req_http_method", "cqhm",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_http_method,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqhm", field);
+
+  field = new LogField("client_req_url", "cqu",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_url,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str,
+                       &LogAccess::set_client_req_url);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqu", field);
+
+  field = new LogField("client_req_url_canonical", "cquc",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_url_canon,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str,
+                       &LogAccess::set_client_req_url_canon);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cquc", field);
+
+  field = new LogField("client_req_unmapped_url_canonical", "cquuc",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_unmapped_url_canon,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str,
+                       &LogAccess::set_client_req_unmapped_url_canon);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cquuc", field);
+
+  field = new LogField("client_req_unmapped_url_path", "cquup",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_unmapped_url_path,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str,
+                       &LogAccess::set_client_req_unmapped_url_path);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cquup", field);
+
+  field = new LogField("client_req_unmapped_url_host", "cquuh",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_unmapped_url_host,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str,
+                       &LogAccess::set_client_req_unmapped_url_host);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cquuh", field);
+
+  field = new LogField("client_req_url_scheme", "cqus",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_url_scheme,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqus", field);
+
+  field = new LogField("client_req_url_path", "cqup",
+                       LogField::STRING,
+                       &LogAccess::marshal_client_req_url_path,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str,
+                       &LogAccess::set_client_req_url_path);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqup", field);
+
+  field = new LogField("client_req_http_version", "cqhv",
+                       LogField::dINT,
+                       &LogAccess::marshal_client_req_http_version,
+                       &LogAccess::unmarshal_http_version);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqhv", field);
+
+  field = new LogField("client_req_header_len", "cqhl",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_header_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqhl", field);
+
+  field = new LogField("client_req_body_len", "cqbl",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_req_body_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cqbl", field);
+
+  Ptr<LogFieldAliasTable> finish_status_map = make_ptr(new LogFieldAliasTable);
+  finish_status_map->init(N_LOG_FINISH_CODE_TYPES,
+                          LOG_FINISH_FIN, "FIN",
+                          LOG_FINISH_INTR, "INTR",
+                          LOG_FINISH_TIMEOUT, "TIMEOUT");
+
+  field = new LogField("client_finish_status_code", "cfsc",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_finish_status_code,
+                       &LogAccess::unmarshal_finish_status,
+                       (Ptr<LogFieldAliasMap>) finish_status_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cfsc", field);
+
+  // proxy -> client fields
+  field = new LogField("proxy_resp_content_type", "psct",
+                       LogField::STRING,
+                       &LogAccess::marshal_proxy_resp_content_type,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "psct", field);
+
+  field = new LogField("proxy_resp_squid_len", "psql",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_resp_squid_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "psql", field);
+
+  field = new LogField("proxy_resp_content_len", "pscl",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_resp_content_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pscl", field);
+
+  field = new LogField("proxy_resp_content_len_hex", "psch",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_resp_content_len,
+                       &LogAccess::unmarshal_int_to_str_hex);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "psch", field);
+
+  field = new LogField("proxy_resp_status_code", "pssc",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_resp_status_code,
+                       &LogAccess::unmarshal_http_status);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pssc", field);
+
+  field = new LogField("proxy_resp_header_len", "pshl",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_resp_header_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pshl", field);
+
+  field = new LogField("proxy_finish_status_code", "pfsc",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_finish_status_code,
+                       &LogAccess::unmarshal_finish_status,
+                       (Ptr<LogFieldAliasMap>) finish_status_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pfsc", field);
+
+  Ptr<LogFieldAliasTable> cache_code_map = make_ptr(new LogFieldAliasTable);
+  cache_code_map->init(49,
+                       SQUID_LOG_EMPTY, "UNDEFINED",
+                       SQUID_LOG_TCP_HIT, "TCP_HIT",
+                       SQUID_LOG_TCP_DISK_HIT, "TCP_DISK_HIT",
+                       SQUID_LOG_TCP_MEM_HIT, "TCP_MEM_HIT",
+                       SQUID_LOG_TCP_MISS, "TCP_MISS",
+                       SQUID_LOG_TCP_EXPIRED_MISS, "TCP_EXPIRED_MISS",
+                       SQUID_LOG_TCP_REFRESH_HIT, "TCP_REFRESH_HIT",
+                       SQUID_LOG_TCP_REF_FAIL_HIT, "TCP_REFRESH_FAIL_HIT",
+                       SQUID_LOG_TCP_REFRESH_MISS, "TCP_REFRESH_MISS",
+                       SQUID_LOG_TCP_CLIENT_REFRESH, "TCP_CLIENT_REFRESH_MISS",
+                       SQUID_LOG_TCP_IMS_HIT, "TCP_IMS_HIT",
+                       SQUID_LOG_TCP_IMS_MISS, "TCP_IMS_MISS",
+                       SQUID_LOG_TCP_SWAPFAIL, "TCP_SWAPFAIL_MISS",
+                       SQUID_LOG_TCP_DENIED, "TCP_DENIED",
+                       SQUID_LOG_TCP_WEBFETCH_MISS, "TCP_WEBFETCH_MISS",
+                       SQUID_LOG_TCP_FUTURE_2, "TCP_FUTURE_2",
+                       SQUID_LOG_TCP_HIT_REDIRECT, "TCP_HIT_REDIRECT",
+                       SQUID_LOG_TCP_MISS_REDIRECT, "TCP_MISS_REDIRECT",
+                       SQUID_LOG_TCP_HIT_X_REDIRECT, "TCP_HIT_X_REDIRECT",
+                       SQUID_LOG_TCP_MISS_X_REDIRECT, "TCP_MISS_X_REDIRECT",
+                       SQUID_LOG_UDP_HIT, "UDP_HIT",
+                       SQUID_LOG_UDP_WEAK_HIT, "UDP_WEAK_HIT",
+                       SQUID_LOG_UDP_HIT_OBJ, "UDP_HIT_OBJ",
+                       SQUID_LOG_UDP_MISS, "UDP_MISS",
+                       SQUID_LOG_UDP_DENIED, "UDP_DENIED",
+                       SQUID_LOG_UDP_INVALID, "UDP_INVALID",
+                       SQUID_LOG_UDP_RELOADING, "UDP_RELOADING",
+                       SQUID_LOG_UDP_FUTURE_1, "UDP_FUTURE_1",
+                       SQUID_LOG_UDP_FUTURE_2, "UDP_FUTURE_2",
+                       SQUID_LOG_ERR_READ_TIMEOUT, "ERR_READ_TIMEOUT",
+                       SQUID_LOG_ERR_LIFETIME_EXP, "ERR_LIFETIME_EXP",
+                       SQUID_LOG_ERR_NO_CLIENTS_BIG_OBJ, "ERR_NO_CLIENTS_BIG_OBJ",
+                       SQUID_LOG_ERR_READ_ERROR, "ERR_READ_ERROR",
+                       SQUID_LOG_ERR_CLIENT_ABORT, "ERR_CLIENT_ABORT",
+                       SQUID_LOG_ERR_CONNECT_FAIL, "ERR_CONNECT_FAIL",
+                       SQUID_LOG_ERR_INVALID_REQ, "ERR_INVALID_REQ",
+                       SQUID_LOG_ERR_UNSUP_REQ, "ERR_UNSUP_REQ",
+                       SQUID_LOG_ERR_INVALID_URL, "ERR_INVALID_URL",
+                       SQUID_LOG_ERR_NO_FDS, "ERR_NO_FDS",
+                       SQUID_LOG_ERR_DNS_FAIL, "ERR_DNS_FAIL",
+                       SQUID_LOG_ERR_NOT_IMPLEMENTED, "ERR_NOT_IMPLEMENTED",
+                       SQUID_LOG_ERR_CANNOT_FETCH, "ERR_CANNOT_FETCH",
+                       SQUID_LOG_ERR_NO_RELAY, "ERR_NO_RELAY",
+                       SQUID_LOG_ERR_DISK_IO, "ERR_DISK_IO",
+                       SQUID_LOG_ERR_ZERO_SIZE_OBJECT, "ERR_ZERO_SIZE_OBJECT",
+                       SQUID_LOG_ERR_PROXY_DENIED, "ERR_PROXY_DENIED",
+                       SQUID_LOG_ERR_WEBFETCH_DETECTED, "ERR_WEBFETCH_DETECTED",
+                       SQUID_LOG_ERR_FUTURE_1, "ERR_FUTURE_1",
+                       SQUID_LOG_ERR_UNKNOWN, "ERR_UNKNOWN");
+
+  field = new LogField("cache_result_code", "crc",
+                       LogField::sINT,
+                       &LogAccess::marshal_cache_result_code,
+                       &LogAccess::unmarshal_cache_code,
+                       (Ptr<LogFieldAliasMap>) cache_code_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "crc", field);
+
+  // proxy -> server fields
+  field = new LogField("proxy_req_header_len", "pqhl",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_req_header_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pqhl", field);
+
+  field = new LogField("proxy_req_body_len", "pqbl",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_req_body_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pqbl", field);
+
+  field = new LogField("proxy_req_server_name", "pqsn",
+                       LogField::STRING,
+                       &LogAccess::marshal_proxy_req_server_name,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pqsn", field);
+
+  field = new LogField("proxy_req_server_ip", "pqsi",
+                       LogField::IP,
+                       &LogAccess::marshal_proxy_req_server_ip,
+                       &LogAccess::unmarshal_ip_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "pqsi", field);
+
+  Ptr<LogFieldAliasTable> hierarchy_map = make_ptr(new LogFieldAliasTable);
+  hierarchy_map->init(36,
+                      SQUID_HIER_EMPTY, "EMPTY",
+                      SQUID_HIER_NONE, "NONE",
+                      SQUID_HIER_DIRECT, "DIRECT",
+                      SQUID_HIER_SIBLING_HIT, "SIBLING_HIT",
+                      SQUID_HIER_PARENT_HIT, "PARENT_HIT",
+                      SQUID_HIER_DEFAULT_PARENT, "DEFAULT_PARENT",
+                      SQUID_HIER_SINGLE_PARENT, "SINGLE_PARENT",
+                      SQUID_HIER_FIRST_UP_PARENT, "FIRST_UP_PARENT",
+                      SQUID_HIER_NO_PARENT_DIRECT, "NO_PARENT_DIRECT",
+                      SQUID_HIER_FIRST_PARENT_MISS, "FIRST_PARENT_MISS",
+                      SQUID_HIER_LOCAL_IP_DIRECT, "LOCAL_IP_DIRECT",
+                      SQUID_HIER_FIREWALL_IP_DIRECT, "FIREWALL_IP_DIRECT",
+                      SQUID_HIER_NO_DIRECT_FAIL, "NO_DIRECT_FAIL",
+                      SQUID_HIER_SOURCE_FASTEST, "SOURCE_FASTEST",
+                      SQUID_HIER_SIBLING_UDP_HIT_OBJ, "SIBLING_UDP_HIT_OBJ",
+                      SQUID_HIER_PARENT_UDP_HIT_OBJ, "PARENT_UDP_HIT_OBJ",
+                      SQUID_HIER_PASSTHROUGH_PARENT, "PASSTHROUGH_PARENT",
+                      SQUID_HIER_SSL_PARENT_MISS, "SSL_PARENT_MISS",
+                      SQUID_HIER_INVALID_CODE, "INVALID_CODE",
+                      SQUID_HIER_TIMEOUT_DIRECT, "TIMEOUT_DIRECT",
+                      SQUID_HIER_TIMEOUT_SIBLING_HIT, "TIMEOUT_SIBLING_HIT",
+                      SQUID_HIER_TIMEOUT_PARENT_HIT, "TIMEOUT_PARENT_HIT",
+                      SQUID_HIER_TIMEOUT_DEFAULT_PARENT, "TIMEOUT_DEFAULT_PARENT",
+                      SQUID_HIER_TIMEOUT_SINGLE_PARENT, "TIMEOUT_SINGLE_PARENT",
+                      SQUID_HIER_TIMEOUT_FIRST_UP_PARENT, "TIMEOUT_FIRST_UP_PARENT",
+                      SQUID_HIER_TIMEOUT_NO_PARENT_DIRECT, "TIMEOUT_NO_PARENT_DIRECT",
+                      SQUID_HIER_TIMEOUT_FIRST_PARENT_MISS, "TIMEOUT_FIRST_PARENT_MISS",
+                      SQUID_HIER_TIMEOUT_LOCAL_IP_DIRECT, "TIMEOUT_LOCAL_IP_DIRECT",
+                      SQUID_HIER_TIMEOUT_FIREWALL_IP_DIRECT, "TIMEOUT_FIREWALL_IP_DIRECT",
+                      SQUID_HIER_TIMEOUT_NO_DIRECT_FAIL, "TIMEOUT_NO_DIRECT_FAIL",
+                      SQUID_HIER_TIMEOUT_SOURCE_FASTEST, "TIMEOUT_SOURCE_FASTEST",
+                      SQUID_HIER_TIMEOUT_SIBLING_UDP_HIT_OBJ, "TIMEOUT_SIBLING_UDP_HIT_OBJ",
+                      SQUID_HIER_TIMEOUT_PARENT_UDP_HIT_OBJ, "TIMEOUT_PARENT_UDP_HIT_OBJ",
+                      SQUID_HIER_TIMEOUT_PASSTHROUGH_PARENT, "TIMEOUT_PASSTHROUGH_PARENT",
+                      SQUID_HIER_TIMEOUT_TIMEOUT_SSL_PARENT_MISS, "TIMEOUT_TIMEOUT_SSL_PARENT_MISS",
+                      SQUID_HIER_INVALID_ASSIGNED_CODE, "INVALID_ASSIGNED_CODE");
+
+  field = new LogField("proxy_hierarchy_route", "phr",
+                       LogField::sINT,
+                       &LogAccess::marshal_proxy_hierarchy_route,
+                       &LogAccess::unmarshal_hierarchy,
+                       (Ptr<LogFieldAliasMap>) hierarchy_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "phr", field);
+
+  field = new LogField("proxy_host_name", "phn",
+                       LogField::STRING,
+                       &LogAccess::marshal_proxy_host_name,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "phn", field);
+
+  field = new LogField("proxy_host_ip", "phi",
+                       LogField::IP,
+                       &LogAccess::marshal_proxy_host_ip,
+                       &LogAccess::unmarshal_ip_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "phi", field);
+
+  // server -> proxy fields
+
+  field = new LogField("server_host_ip", "shi",
+                       LogField::IP,
+                       &LogAccess::marshal_server_host_ip,
+                       &LogAccess::unmarshal_ip_to_str);
+
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "shi", field);
+
+  field = new LogField("server_host_name", "shn",
+                       LogField::STRING,
+                       &LogAccess::marshal_server_host_name,
+                       (LogField::UnmarshalFunc)&LogAccess::unmarshal_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "shn", field);
+
+  field = new LogField("server_resp_status_code", "sssc",
+                       LogField::sINT,
+                       &LogAccess::marshal_server_resp_status_code,
+                       &LogAccess::unmarshal_http_status);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "sssc", field);
+
+  field = new LogField("server_resp_content_len", "sscl",
+                       LogField::sINT,
+                       &LogAccess::marshal_server_resp_content_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "sscl", field);
+
+  field = new LogField("server_resp_header_len", "sshl",
+                       LogField::sINT,
+                       &LogAccess::marshal_server_resp_header_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "sshl", field);
+
+  field = new LogField("server_resp_http_version", "sshv",
+                       LogField::dINT,
+                       &LogAccess::marshal_server_resp_http_version,
+                       &LogAccess::unmarshal_http_version);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "sshv", field);
+
+  field = new LogField("cached_resp_status_code", "csssc",
+                       LogField::sINT,
+                       &LogAccess::marshal_cache_resp_status_code,
+                       &LogAccess::unmarshal_http_status);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "csssc", field);
+
+  field = new LogField("cached_resp_content_len", "csscl",
+                       LogField::sINT,
+                       &LogAccess::marshal_cache_resp_content_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "csscl", field);
+
+  field = new LogField("cached_resp_header_len", "csshl",
+                       LogField::sINT,
+                       &LogAccess::marshal_cache_resp_header_len,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "csshl", field);
+
+  field = new LogField("cached_resp_http_version", "csshv",
+                       LogField::dINT,
+                       &LogAccess::marshal_cache_resp_http_version,
+                       &LogAccess::unmarshal_http_version);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "csshv", field);
+
+  field = new LogField("client_retry_after_time", "crat",
+                       LogField::sINT,
+                       &LogAccess::marshal_client_retry_after_time,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "crat", field);
+
+  // cache write fields
+
+  Ptr<LogFieldAliasTable> cache_write_code_map = make_ptr(new LogFieldAliasTable);
+  cache_write_code_map->init(N_LOG_CACHE_WRITE_TYPES,
+                             LOG_CACHE_WRITE_NONE, "-",
+                             LOG_CACHE_WRITE_LOCK_MISSED, "WL_MISS",
+                             LOG_CACHE_WRITE_LOCK_ABORTED, "INTR",
+                             LOG_CACHE_WRITE_ERROR, "ERR", LOG_CACHE_WRITE_COMPLETE, "FIN");
+  field = new LogField("cache_write_result", "cwr",
+                       LogField::sINT,
+                       &LogAccess::marshal_cache_write_code,
+                       &LogAccess::unmarshal_cache_write_code,
+                       (Ptr<LogFieldAliasMap>) cache_write_code_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cwr", field);
+
+  field = new LogField("cache_write_transform_result", "cwtr",
+                       LogField::sINT,
+                       &LogAccess::marshal_cache_write_transform_code,
+                       &LogAccess::unmarshal_cache_write_code,
+                       (Ptr<LogFieldAliasMap>) cache_write_code_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "cwtr", field);
+
+  // other fields
+
+  field = new LogField("transfer_time_ms", "ttms",
+                       LogField::sINT,
+                       &LogAccess::marshal_transfer_time_ms,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "ttms", field);
+
+  field = new LogField("transfer_time_ms_hex", "ttmh",
+                       LogField::sINT,
+                       &LogAccess::marshal_transfer_time_ms,
+                       &LogAccess::unmarshal_int_to_str_hex);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "ttmh", field);
+
+  field = new LogField("transfer_time_ms_fractional", "ttmsf",
+                       LogField::sINT,
+                       &LogAccess::marshal_transfer_time_ms,
+                       &LogAccess::unmarshal_ttmsf);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "ttmsf", field);
+
+  field = new LogField("transfer_time_sec", "tts",
+                       LogField::sINT,
+                       &LogAccess::marshal_transfer_time_s,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "tts", field);
+
+  field = new LogField("file_size", "fsiz",
+                       LogField::sINT,
+                       &LogAccess::marshal_file_size,
+                       &LogAccess::unmarshal_int_to_str);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "fsiz", field);
+
+  Ptr<LogFieldAliasTable> entry_type_map = make_ptr(new LogFieldAliasTable);
+  entry_type_map->init(N_LOG_ENTRY_TYPES,
+                       LOG_ENTRY_HTTP, "LOG_ENTRY_HTTP",
+                       LOG_ENTRY_ICP, "LOG_ENTRY_ICP");
+  field = new LogField("log_entry_type", "etype",
+                       LogField::sINT,
+                       &LogAccess::marshal_entry_type,
+                       &LogAccess::unmarshal_entry_type,
+                       (Ptr<LogFieldAliasMap>) entry_type_map);
+  global_field_list.add(field, false);
+  ink_hash_table_insert(field_symbol_hash, "etype", field);
+
+  init_status |= FIELDS_INITIALIZED;
+}
+
+/*-------------------------------------------------------------------------
+
+  Initialization functions
+
+  -------------------------------------------------------------------------*/
+int
+Log::handle_logging_mode_change(const char */* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                                RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  Debug("log-config", "Enabled status changed");
+  logging_mode_changed = true;
+  return 0;
+}
+
+void
+Log::init(int flags)
+{
+  collation_preproc_threads = 1;
+  collation_accept_file_descriptor = NO_FD;
+
+  // store the configuration flags
+  //
+  config_flags = flags;
+
+  // create the configuration object
+  config = new LogConfig();
+  ink_assert (config != NULL);
+
+  log_configid = configProcessor.set(log_configid, config);
+
+  // set the logging_mode and read config variables if needed
+  //
+  if (config_flags & LOGCAT) {
+    logging_mode = LOG_MODE_NONE;
+  } else {
+    log_rsb = RecAllocateRawStatBlock((int) log_stat_count);
+    LogConfig::register_stat_callbacks();
+
+    config->read_configuration_variables();
+    collation_port = config->collation_port;
+    collation_preproc_threads = config->collation_preproc_threads;
+
+    if (config_flags & STANDALONE_COLLATOR) {
+      logging_mode = LOG_MODE_TRANSACTIONS;
+    } else {
+      int val = (int) REC_ConfigReadInteger("proxy.config.log.logging_enabled");
+      if (val < LOG_MODE_NONE || val > LOG_MODE_FULL) {
+        logging_mode = LOG_MODE_FULL;
+        Warning("proxy.config.log.logging_enabled has an invalid "
+          "value, setting it to %d", logging_mode);
+      } else {
+        logging_mode = (LoggingMode) val;
+      }
+    }
+  }
+
+  // if remote management is enabled, do all necessary initialization to
+  // be able to handle a logging mode change
+  //
+  if (!(config_flags & NO_REMOTE_MANAGEMENT)) {
+
+    REC_RegisterConfigUpdateFunc("proxy.config.log.logging_enabled",
+                                 &Log::handle_logging_mode_change, NULL);
+
+    REC_RegisterConfigUpdateFunc("proxy.local.log.collation_mode",
+                                 &Log::handle_logging_mode_change, NULL);
+
+    // Clear any stat values that need to be reset on startup
+    //
+    RecSetRawStatSum(log_rsb, log_stat_log_files_open_stat, 0);
+    RecSetRawStatCount(log_rsb, log_stat_log_files_open_stat, 0);
+  }
+
+  if (config_flags & LOGCAT) {
+    init_fields();
+  } else {
+    Debug("log-config", "Log::init(): logging_mode = %d "
+        "init status = %d", logging_mode, init_status);
+    init_when_enabled();
+    if (config_flags & STANDALONE_COLLATOR) {
+      config->collation_mode = Log::COLLATION_HOST;
+    }
+    config->init();
+  }
+}
+
+void
+Log::init_when_enabled()
+{
+  init_fields();
+
+  if (!(init_status & FULLY_INITIALIZED)) {
+
+    if (!(config_flags & STANDALONE_COLLATOR)) {
+      // register callbacks
+      //
+      if (!(config_flags & NO_REMOTE_MANAGEMENT)) {
+        LogConfig::register_config_callbacks();
+      }
+
+      LogConfig::register_mgmt_callbacks();
+    }
+    // setup global scrap object
+    //
+    global_scrap_format = MakeTextLogFormat();
+    global_scrap_object = new LogObject(global_scrap_format,
+                                        Log::config->logfile_dir,
+                                        "scrapfile.log",
+                                        LOG_FILE_BINARY, NULL,
+                                        Log::config->rolling_enabled,
+                                        Log::config->collation_preproc_threads,
+                                        Log::config->rolling_interval_sec,
+                                        Log::config->rolling_offset_hr,
+                                        Log::config->rolling_size_mb);
+
+    // create the flush thread and the collation thread
+    create_threads();
+    eventProcessor.schedule_every(new PeriodicWakeup(collation_preproc_threads, 1),
+                                  HRTIME_SECOND, ET_CALL);
+
+    init_status |= FULLY_INITIALIZED;
+  }
+
+  Note("logging initialized[%d], logging_mode = %d", init_status, logging_mode);
+  if (is_debug_tag_set("log-config")) {
+    config->display();
+  }
+}
+
+void
+Log::create_threads()
+{
+  char desc[64];
+  preproc_notify = new EventNotify[collation_preproc_threads];
+
+  size_t stacksize;
+  REC_ReadConfigInteger(stacksize, "proxy.config.thread.default.stacksize");
+
+  // start the preproc threads
+  //
+  // no need for the conditional var since it will be relying on
+  // on the event system.
+  for (int i = 0; i < collation_preproc_threads; i++) {
+    Continuation *preproc_cont = new LoggingPreprocContinuation(i);
+    sprintf(desc, "[LOG_PREPROC %d]", i);
+    eventProcessor.spawn_thread(preproc_cont, desc, stacksize);
+  }
+
+  // Now, only one flush thread is supported.
+  // TODO: Enable multiple flush threads, such as
+  //       one flush thread per file.
+  //
+  flush_notify = new EventNotify;
+  flush_data_list = new InkAtomicList;
+
+  sprintf(desc, "Logging flush buffer list");
+  ink_atomiclist_init(flush_data_list, desc, 0);
+  Continuation *flush_cont = new LoggingFlushContinuation(0);
+  sprintf(desc, "[LOG_FLUSH]");
+  eventProcessor.spawn_thread(flush_cont, desc, stacksize);
+
+}
+
+/*-------------------------------------------------------------------------
+  Log::access
+
+  Make an entry in the access log for the data supplied by the given
+  LogAccess object.
+  -------------------------------------------------------------------------*/
+
+int
+Log::access(LogAccess * lad)
+{
+  // See if transaction logging is disabled
+  //
+  if (!transaction_logging_enabled()) {
+    return Log::SKIP;
+  }
+
+  ink_assert(init_status & FULLY_INITIALIZED);
+  ink_assert(lad != NULL);
+
+  int ret;
+  static long sample = 1;
+  long this_sample;
+  ProxyMutex *mutex = this_ethread()->mutex;
+
+  // See if we're sampling and it is not time for another sample
+  //
+  if (Log::config->sampling_frequency > 1) {
+    this_sample = sample++;
+    if (this_sample && this_sample % Log::config->sampling_frequency) {
+      Debug("log", "sampling, skipping this entry ...");
+      RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_event_log_access_skip_stat, 1);
+      ret = Log::SKIP;
+      goto done;
+    } else {
+      Debug("log", "sampling, LOGGING this entry ...");
+      sample = 1;
+    }
+  }
+
+  if (Log::config->log_object_manager.get_num_objects() == 0) {
+    Debug("log", "no log objects, skipping this entry ...");
+    RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_event_log_access_skip_stat, 1);
+    ret = Log::SKIP;
+    goto done;
+  }
+  // initialize this LogAccess object and proccess
+  //
+  lad->init();
+  ret = config->log_object_manager.log(lad);
+
+done:
+  return ret;
+}
+
+/*-------------------------------------------------------------------------
+  Log::error
+
+  Make an entry into the current error log.  For convenience, it is given in
+  both variable argument (format, ...) and stdarg (format, va_list) forms.
+
+  Note that Log::error could call Log::va_error after calling va_start
+  so that va_error handles the statistics update. However, to make
+  Log::error slightly more efficient this is not the case. The
+  downside is that one has to be careful to update both functions if
+  need be.
+  -------------------------------------------------------------------------*/
+
+int
+Log::error(const char *format, ...)
+{
+  va_list ap;
+  int ret;
+
+  va_start(ap, format);
+  ret = Log::va_error(format, ap);
+  va_end(ap);
+
+  return ret;
+}
+
+int
+Log::va_error(const char *format, va_list ap)
+{
+  int ret_val = Log::SKIP;
+  ProxyMutex *mutex = this_ethread()->mutex;
+
+  if (error_log) {
+    ink_assert(format != NULL);
+    ret_val = error_log->va_log(NULL, format, ap);
+
+    switch (ret_val) {
+    case Log::LOG_OK:
+      RecIncrRawStat(log_rsb, mutex->thread_holding,
+                     log_stat_event_log_error_ok_stat, 1);
+      break;
+    case Log::SKIP:
+      RecIncrRawStat(log_rsb, mutex->thread_holding,
+                     log_stat_event_log_error_skip_stat, 1);
+      break;
+    case Log::AGGR:
+      RecIncrRawStat(log_rsb, mutex->thread_holding,
+                     log_stat_event_log_error_aggr_stat, 1);
+      break;
+    case Log::FULL:
+      RecIncrRawStat(log_rsb, mutex->thread_holding,
+                     log_stat_event_log_error_full_stat, 1);
+      break;
+    case Log::FAIL:
+      RecIncrRawStat(log_rsb, mutex->thread_holding,
+                     log_stat_event_log_error_fail_stat, 1);
+      break;
+    default:
+      ink_release_assert(!"Unexpected result");
+    }
+
+    return ret_val;
+  }
+
+  RecIncrRawStat(log_rsb, mutex->thread_holding,
+                 log_stat_event_log_error_skip_stat, 1);
+
+  return ret_val;
+}
+
+/*-------------------------------------------------------------------------
+  Log::preproc_thread_main
+
+  This function defines the functionality of the logging flush prepare
+  thread, whose purpose is to consume LogBuffer objects from the
+  global_buffer_full_list, do some prepare work(such as convert to ascii),
+  and then forward to flush thread.
+  -------------------------------------------------------------------------*/
+
+void *
+Log::preproc_thread_main(void *args)
+{
+  int idx = *(int *)args;
+
+  Debug("log-preproc", "log preproc thread is alive ...");
+
+  Log::preproc_notify[idx].lock();
+
+  while (true) {
+    size_t buffers_preproced = 0;
+    LogConfig * current = (LogConfig *)configProcessor.get(log_configid);
+
+    if (current) {
+      buffers_preproced = current->log_object_manager.preproc_buffers(idx);
+    }
+
+    // config->increment_space_used(bytes_to_disk);
+    // TODO: the bytes_to_disk should be set to Log
+
+    Debug("log-preproc","%zu buffers preprocessed from LogConfig %p (refcount=%d) this round",
+          buffers_preproced, current, current->m_refcount);
+
+    configProcessor.release(log_configid, current);
+
+    // wait for more work; a spurious wake-up is ok since we'll just
+    // check the queue and find there is nothing to do, then wait
+    // again.
+    //
+    Log::preproc_notify[idx].wait();
+  }
+
+  /* NOTREACHED */
+  Log::preproc_notify[idx].unlock();
+  return NULL;
+}
+
+void *
+Log::flush_thread_main(void * /* args ATS_UNUSED */)
+{
+  char *buf;
+  LogFile *logfile;
+  LogBuffer *logbuffer;
+  LogFlushData *fdata;
+  ink_hrtime now, last_time = 0;
+  int len, bytes_written, total_bytes;
+  SLL<LogFlushData, LogFlushData::Link_link> link, invert_link;
+  ProxyMutex *mutex = this_thread()->mutex;
+
+  Log::flush_notify->lock();
+
+  while (true) {
+    fdata = (LogFlushData *) ink_atomiclist_popall(flush_data_list);
+
+    // invert the list
+    //
+    link.head = fdata;
+    while ((fdata = link.pop()))
+      invert_link.push(fdata);
+
+    // process each flush data
+    //
+    while ((fdata = invert_link.pop())) {
+      buf = NULL;
+      total_bytes = 0;
+      bytes_written = 0;
+      logfile = fdata->m_logfile;
+
+      if (logfile->m_file_format == LOG_FILE_BINARY) {
+
+        logbuffer = (LogBuffer *)fdata->m_data;
+        LogBufferHeader *buffer_header = logbuffer->header();
+
+        buf = (char *)buffer_header;
+        total_bytes = buffer_header->byte_count;
+
+      } else if (logfile->m_file_format == LOG_FILE_ASCII
+                 || logfile->m_file_format == LOG_FILE_PIPE){
+
+        buf = (char *)fdata->m_data;
+        total_bytes = fdata->m_len;
+
+      } else {
+        ink_release_assert(!"Unknown file format type!");
+      }
+
+      // make sure we're open & ready to write
+      logfile->check_fd();
+      if (!logfile->is_open()) {
+        Warning("File:%s was closed, have dropped (%d) bytes.",
+                logfile->get_name(), total_bytes);
+
+        RecIncrRawStat(log_rsb, mutex->thread_holding,
+                       log_stat_bytes_lost_before_written_to_disk_stat,
+                       total_bytes);
+        delete fdata;
+        continue;
+      }
+
+      // write *all* data to target file as much as possible
+      //
+      while (total_bytes - bytes_written) {
+        if (Log::config->logging_space_exhausted) {
+          Debug("log", "logging space exhausted, failed to write file:%s, have dropped (%d) bytes.",
+                  logfile->get_name(), (total_bytes - bytes_written));
+
+          RecIncrRawStat(log_rsb, mutex->thread_holding,
+                         log_stat_bytes_lost_before_written_to_disk_stat,
+                         total_bytes - bytes_written);
+          break;
+        }
+
+        len = ::write(logfile->m_fd, &buf[bytes_written],
+                      total_bytes - bytes_written);
+        if (len < 0) {
+          Error("Failed to write log to %s: [tried %d, wrote %d, %s]",
+                logfile->get_name(), total_bytes - bytes_written,
+                bytes_written, strerror(errno));
+
+          RecIncrRawStat(log_rsb, mutex->thread_holding,
+                         log_stat_bytes_lost_before_written_to_disk_stat,
+                         total_bytes - bytes_written);
+          break;
+        }
+        bytes_written += len;
+      }
+
+      RecIncrRawStat(log_rsb, mutex->thread_holding,
+                     log_stat_bytes_written_to_disk_stat, bytes_written);
+
+      ink_atomic_increment(&logfile->m_bytes_written, bytes_written);
+
+      delete fdata;
+    }
+
+    // Time to work on periodic events??
+    //
+    now = ink_get_hrtime() / HRTIME_SECOND;
+    if (now >= last_time + PERIODIC_TASKS_INTERVAL) {
+      Debug("log-preproc", "periodic tasks for %" PRId64, (int64_t)now);
+      periodic_tasks(now);
+      last_time = ink_get_hrtime() / HRTIME_SECOND;
+    }
+
+    // wait for more work; a spurious wake-up is ok since we'll just
+    // check the queue and find there is nothing to do, then wait
+    // again.
+    //
+    Log::flush_notify->wait();
+  }
+
+  /* NOTREACHED */
+  Log::flush_notify->unlock();
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+  Log::collate_thread_main
+
+  This function defines the functionality of the log collation thread,
+  whose purpose is to collate log buffers from other nodes.
+  -------------------------------------------------------------------------*/
+
+void *
+Log::collate_thread_main(void * /* args ATS_UNUSED */)
+{
+  LogSock *sock;
+  LogBufferHeader *header;
+  LogFormat *format;
+  LogObject *obj;
+  int bytes_read;
+  int sock_id;
+  int new_client;
+
+  Debug("log-thread", "Log collation thread is alive ...");
+
+  Log::collate_notify.lock();
+
+  while (true) {
+    ink_assert(Log::config != NULL);
+
+    // wait on the collation condition variable until we're sure that
+    // we're a collation host.  The while loop guards against spurious
+    // wake-ups.
+    //
+    while (!Log::config->am_collation_host()) {
+      Log::collate_notify.wait();
+    }
+
+    // Ok, at this point we know we're a log collation host, so get to
+    // work.  We still need to keep checking whether we're a collation
+    // host to account for a reconfiguration.
+    //
+    Debug("log-sock", "collation thread starting, creating LogSock");
+    sock = new LogSock(LogSock::LS_CONST_CLUSTER_MAX_MACHINES);
+    ink_assert(sock != NULL);
+
+    if (sock->listen(Log::config->collation_port) != 0) {
+      LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR,
+                              "Collation server error; could not listen on port %d", Log::config->collation_port);
+      Warning("Collation server error; could not listen on port %d", Log::config->collation_port);
+      delete sock;
+      //
+      // go to sleep ...
+      //
+      Log::collate_notify.wait();
+      continue;
+    }
+
+    while (true) {
+      if (!Log::config->am_collation_host()) {
+        break;
+      }
+
+      if (sock->pending_connect(0)) {
+        Debug("log-sock", "pending connection ...");
+        if ((new_client = sock->accept()) < 0) {
+          Debug("log-sock", "error accepting new collation client");
+        } else {
+          Debug("log-sock", "connection %d accepted", new_client);
+          if (!sock->authorized_client(new_client, Log::config->collation_secret)) {
+            Warning("Unauthorized client connecting to " "log collation port; connection refused.");
+            sock->close(new_client);
+          }
+        }
+      }
+
+      sock->check_connections();
+
+      if (!sock->pending_message_any(&sock_id, 0)) {
+        continue;
+      }
+
+      Debug("log-sock", "pending message ...");
+      header = (LogBufferHeader *) sock->read_alloc(sock_id, &bytes_read);
+      if (!header) {
+        Debug("log-sock", "Error reading LogBuffer from collation client");
+        continue;
+      }
+
+      if (header->version != LOG_SEGMENT_VERSION) {
+        Note("Invalid LogBuffer received; invalid version - buffer = %u, current = %u",
+             header->version, LOG_SEGMENT_VERSION);
+        delete[]header;
+        continue;
+      }
+
+      Debug("log-sock", "message accepted, size = %d", bytes_read);
+
+      obj = match_logobject(header);
+      if (!obj) {
+        Note("LogObject not found with fieldlist id; " "writing LogBuffer to scrap file");
+        obj = global_scrap_object;
+      }
+
+      format = obj->m_format;
+      Debug("log-sock", "Using format '%s'", format->name());
+
+      delete[]header;
+    }
+
+    Debug("log", "no longer collation host, deleting LogSock");
+    delete sock;
+  }
+
+  /* NOTREACHED */
+  Log::collate_notify.unlock();
+  return NULL;
+}
+
+/*-------------------------------------------------------------------------
+  Log::match_logobject
+
+  This routine matches the given buffer with the local list of LogObjects.
+  If a match cannot be found, then we'll try to construct a local LogObject
+  using the information provided in the header.  If all else fails, we
+  return NULL.
+  -------------------------------------------------------------------------*/
+
+LogObject *
+Log::match_logobject(LogBufferHeader * header)
+{
+  if (!header)
+    return NULL;
+
+  LogObject *obj;
+  obj = Log::config->log_object_manager.get_object_with_signature(header->log_object_signature);
+
+  if (!obj) {
+    // object does not exist yet, create it
+    //
+    LogFormat *fmt = new LogFormat("__collation_format__", header->fmt_fieldlist(), header->fmt_printf());
+
+    if (fmt->valid()) {
+      LogFileFormat file_format = header->log_object_flags & LogObject::BINARY ? LOG_FILE_BINARY :
+        (header->log_object_flags & LogObject::WRITES_TO_PIPE ? LOG_FILE_PIPE : LOG_FILE_ASCII);
+
+      obj = new LogObject(fmt, Log::config->logfile_dir,
+                          header->log_filename(), file_format, NULL,
+                          (Log::RollingEnabledValues)Log::config->rolling_enabled,
+                          Log::config->collation_preproc_threads,
+                          Log::config->rolling_interval_sec,
+                          Log::config->rolling_offset_hr,
+                          Log::config->rolling_size_mb, true);
+
+      obj->set_remote_flag();
+
+      if (Log::config->log_object_manager.manage_object(obj)) {
+        // object manager can't solve filename conflicts
+        // delete the object and return NULL
+        //
+        delete obj;
+        obj = NULL;
+      }
+    }
+  }
+  return obj;
+}
diff --git a/proxy/logging/Log.h b/proxy/logging/Log.h
new file mode 100644
index 00000000..38f1ab77
--- /dev/null
+++ b/proxy/logging/Log.h
@@ -0,0 +1,486 @@
+/** @file
+
+  Logging
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section design Logging Design
+
+  @verbatim
+  o Configuration Variables (and sample values)
+
+      proxy.config.log.format_file              logs/formats
+      proxy.config.log.logging_enabled          1
+      proxy.config.log.failsafe_logging_enabled 0
+      proxy.config.log.sampling_interval        1
+      proxy.config.log.buffer_segment_count     16
+      proxy.config.log.buffer_segment_size      1MB
+      proxy.config.log.max_entries_per_segment  100
+      proxy.config.log.online_formats_enabled   0
+      proxy.config.log.online_squid_format      0
+      proxy.config.log.online_ns_common_format  0
+      proxy.config.log.online_ns_ext_format     0
+      proxy.config.log.online_ns_ext2_format    0
+      proxy.config.log.filtering_enabled        0
+      proxy.config.log.local_disk_enabled       2 (only if network fails)
+      proxy.config.log.network_enabled          1
+      proxy.config.log.network_port             4444
+      proxy.config.log.network_timeout_ms       100
+      proxy.config.log.lock_timeout_ms          10
+
+  o Memory Layout
+
+      Log data for each transaction is stored in a LogBufferEntry that has
+      been allocated from a LogBufferSegment, which in-turn is located
+      within a LogBufferPool.  A LogBufferPool looks like:
+
+      +--++--++--+---+--+-----+--+--++--++--+----+--+---++--++...+
+      |ph||sh||eh|eee|eh|eeeee|eh|ee||sh||eh|eeee|eh|eee||sh||   |
+      +--++--++--+---+--+-----+--+--++--++--+----+--+---++--++...+
+       ^   ^   ^  ^
+       |   |   |  |
+       |   |   |  +-- actual data for a LogBufferEntry
+       |   |   +----- a LogBufferEntryHeader describing the following entry
+       |   +--------- a LogBufferSegmentHeader describing the entries
+       +------------- a LogBufferPoolHeader describing the segments
+
+  o Initial State
+
+      - A LogBufferPool is allocated, with storage equal to
+        sizeof (LogBufferPoolHeader) + buffer_segment_count * buffer_segment_size
+
+      - The buffer pool space is divided into buffer_segment_count
+        segments, each with a fixed size of buffer_segment_size.
+
+      - All of the segments are placed on the empty_segment list in the
+        pool header (H), and the first segment is assigned as the
+        current_segment.
+
+  o LogBuffer Allocation
+
+      - If logging is disabled (!proxy.config.log.logging_enabled),
+        return Log::SKIP.
+
+      - If proxy.config.log.sampling_interval > 1 but it's not time to
+        sample, return Log::SKIP.
+
+      - If proxy.config.log.filtering_enabled, then check host and domain
+        in the request_header against the filter file.  If this request does
+        not pass the filter, return Log::SKIP.
+
+      - The pool_lock in the pool header is obtained. If it cannot be
+        obtained after proxy.config.log.trylock_time_ms milliseconds, then
+        a new pool is allocated and the lock is taken on the new pool.
+        If a new pool cannot be allocated, then Log::FAIL is returned and
+        the client (HttpStateMachineGet) can deal with the failure in the
+        best possible way.
+
+      - If there is not enough space in the current segment, the current
+        segment is moved to the full_segment list and a segment from the
+        empty_segment list is designated as the current_segment.  If there
+        are no segments in the empty_segment list, the FAIL_MEMORY status
+        is returned.
+
+      - The entry count for the current segment is bumped and the next
+        offset value is computed and stored.
+
+      - The pool_lock is released.
+
+      - The c_request_timestamp field is set, ensuring that each of the
+        entries within the segment are automatically ordered, and the
+        LogBuffer pointer is returned.
+
+  o LogBuffer Completion
+
+      - Since each client thread now has a unique buffer pointer, all
+        writes can occur concurrently and without additional locking.
+
+      - The logging data will be extracted from the LogAccessData object
+        using the member functions within.  Only those data items that will
+        be needed will be taken.  The data is then marshalled into the
+        buffer previously allocated.
+
+      - The LogBuffer is composed of two parts: a fixed-size part that
+        contains all of the statically-sized fields, and a variable-sized
+        buffer that follows, containing all of the space for strings.
+        Variable-size fields in the LogBuffer are actually just
+        fixed-size offsets into the variable-size region.
+
+        +---------------------+
+        |      fixed-size     |
+        +---------------------+
+        |                     |  contains strings and any custom logging
+        :     variable-size   :  fields not in the union set.
+        |                     |
+        +---------------------+
+
+      - Once the buffer has been completed, it is committed into the
+        segment from which it was allocated by incrementing the
+        commit_count within the segment header.  This is an ATOMIC update
+        so that no locking is required.  If the commit_count is equal to
+        the entry_count and the segment is on the full_list, then the
+        logging thread will be awoken so that it can flush the segment
+        to disk/net.
+
+  o Flushing
+
+        +-+---------------+
+        |h|bbb|b|bbbb|bbb |
+        +-+---------------+
+           |
+           |     **********      +---------------+
+           +-?-> * format * ---> |abcdefghijklmno| ---> DISK
+           |     **********      +---------------+
+           |
+           +-?-> DISK
+           |
+           +-?-> NETWORK
+
+      - The logging thread wakes up whenever there is a LogBufferSegment
+        ready to be flushed.  This occurs when it is on the full_segment
+        list and the commit_count is the same as the entry_count.
+
+      - If proxy.config.log.online_formats_enabled is set, then the segment
+        is passed through the formatting module, which creates ASCII buffers
+        for the selected pre-defined formats.  All ASCII buffers are then
+        flushed to local disk using basic I/O primitives.  The logging
+        thead is allowed to block on I/O since logging buffers can be
+        continually allocated without the assistance of the logging thread.
+
+      - If local disk logging is enabled, the complete binary segment
+        structure is written to disk, and can be processed later with an
+        off-line formatting tool.
+
+      - If network logging is enabled, the segment is written to the
+        pre-defined network port.  A timeout keeps this from being an
+        unbounded operation.
+
+      - Once the segment has been passed through all possible output
+        channels, it must be placed back onto the free_list in its pool.
+        The LogBufferPool lock is then obtained.
+
+      - The evacuated segment is returned to the empty_segment list.
+
+      - If all of the segments are on the empty_segment list and there is
+        at least one other pool around, then this pool will be deleted.
+        Otherwsise, the LogBufferPool lock is released.
+
+      - If there are no more segments to be flushed, then the logging
+        thread will go back to sleep (waiting on a condition variable).
+
+  o Off-line Processing
+
+      - In the default case, data written to disk will be in binary form,
+        in units of a segment.  An off-line processing tool, called logcat,
+        can be written to read this data (as stdin) and generate formatted
+        log entries (as stdout).  Thus, this tool could be used as a pipe.
+
+  o Log Collation
+
+      - Log collation is managed by LogCollator nodes, which are
+        stand-alone processes that receive LogBufferSegments from specified
+        clients and merges them into larger, collated LogBufferSegments.
+        At this point, the collated segments can be flushed as before.
+        To ease the impact of the initial implementation on the manager,
+        the collator will likely be implemented as a new thread within the
+        proxy process on the node that will do the log collation.  That
+        means that this node will have to run the proxy, but we should see
+        about being able to disable it from actually participating in the
+        proxy cluster.
+
+      - Log collator processes attach to the network port for the client
+        nodes they're receiving their logs from.  A single collator can
+        attach to any number of client nodes, and is responsible for
+        keeping the network pipes clean so that log entries don't back up.
+
+      - Collation is accomplished with a merge-sort of the segments from
+        each node, since segments from each node are guaranteed to be
+        in-order.  If, due to a timeout, the collator has to continue with
+        the sort and later receives an out-of-order buffer, the data will
+        be processed and an error will be generated indicating that the
+        collated logs are out of order.  A tool will be provided to
+        re-order the entries in the event of a sorting error.
+
+  o Custom Log Formats
+
+      - Custom logging formats are possible, where the field selection is
+        the "union" set of pre-defined log format fields plus any
+        information from the HTTP headers.
+
+      - Log formats are specified using a printf-like format string, where
+        the conversion codes (%) are replaced with the appropriate logging
+        fields.  Each of the union set fields will have its own conversion
+        code (see LogBuffer below), and additional fields from a header
+        will have the general form of %{field}header.
+
+      - Formats are specified in the log format file.
+
+  o Filtering
+
+      - Currently, filtering will only be supported based on exact matching
+        of the host or domain name of the request.
+
+      - Filtering is specified in the log format file.
+
+  o Log Format File
+
+      - Each line of the log format file consists of four fields separated
+        by whitespaces:
+
+        + identifier - used to identify this format/filter
+        + filename - the name of the log file
+        + (filter) - the filter to apply for this file
+        + "format" - the format string for each entry
+
+        Filters have the form (field op value), where "field" can either be
+        %shn (server host name) or %sdn (sever domain name); "op" can either
+        be == or !=; and "value" can be any valid hostname or domain name,
+        such as hoot.example.com or example.com.
+
+      - Sample entries in the log format file:
+
+        1 common () "%chi - %cun [%cqtf] \"%cqtx\" %pss %pcl"
+        2 custom (%shn == hoot.example.com) "%cqu"
+  @endverbatim
+
+  @section api External API
+
+  @verbatim
+  int Log::access (LogAccess *entry);
+
+  The return value is Log::OK if all log objects successfully logged the
+  entry. Otherwise, it has the following bits set to indicate what happened
+
+  ret_val & Log::SKIP      - at least one object filtered the entry
+                           - transaction logging has been disabled
+                           - the logging system is sampling and it is
+                             not yet time for a new sample
+                           - no log objects have been defined
+                           - entry to log is empty
+
+  ret_val & Log::FAIL      an internal limit of the logging system was
+                           exceeded preventing entry from being logged
+
+  ret_val & Log::FULL      the logging space has been exhausted
+
+  @endverbatim
+
+  @section example Example usage of the API
+
+  @code
+  LogAccessHttpSM entry (this);
+  int ret = Log::access (&entry);
+  @endcode
+
+*/
+
+#ifndef LOG_H
+#define LOG_H
+
+#include <stdarg.h>
+#include "libts.h"
+#include "P_RecProcess.h"
+#include "LogFile.h"
+#include "LogBuffer.h"
+
+class LogAccess;
+class LogFieldList;
+class LogFilterList;
+class LogFormatList;
+//class LogBufferList; vl: we don't need it here
+struct LogBufferHeader;
+class LogFile;
+class LogBuffer;
+class LogFormat;
+class LogObject;
+class LogConfig;
+class TextLogObject;
+
+class LogFlushData
+{
+public:
+  LINK(LogFlushData, link);
+  Ptr<LogFile> m_logfile;
+  LogBuffer *logbuffer;
+  void *m_data;
+  int m_len;
+
+  LogFlushData(LogFile *logfile, void *data, int len = -1):
+    m_logfile(logfile), m_data(data), m_len(len)
+  {
+  }
+
+  ~LogFlushData()
+  {
+    switch (m_logfile->m_file_format) {
+    case LOG_FILE_BINARY:
+      logbuffer = (LogBuffer *)m_data;
+      LogBuffer::destroy(logbuffer);
+      break;
+    case LOG_FILE_ASCII:
+    case LOG_FILE_PIPE:
+      free(m_data);
+      break;
+    case N_LOGFILE_TYPES:
+    default:
+      ink_release_assert(!"Unknown file format type!");
+    }
+  }
+};
+
+/**
+   This object exists to provide a namespace for the logging system.
+   It contains all data types and global variables relevant to the
+   logging system.  You can't actually create a Log object, so all
+   members are static.
+ */
+class Log
+{
+public:
+
+  enum ReturnCodeFlags
+  {
+    LOG_OK = 1,
+    SKIP = 2,
+    AGGR = 4,
+    FAIL = 8,
+    FULL = 16
+  };
+
+  enum LoggingMode
+  {
+    LOG_MODE_NONE = 0,
+    LOG_MODE_ERRORS,        // log *only* errors
+    LOG_MODE_TRANSACTIONS,  // log *only* transactions
+    LOG_MODE_FULL
+  };
+
+  enum InitFlags
+  {
+    FIELDS_INITIALIZED = 1,
+    FULLY_INITIALIZED = 2
+  };
+
+  enum ConfigFlags
+  {
+    NO_REMOTE_MANAGEMENT = 1,
+    STANDALONE_COLLATOR = 2,
+    LOGCAT = 4
+  };
+
+  enum CollationMode
+  {
+    NO_COLLATION = 0,
+    COLLATION_HOST,
+    SEND_STD_FMTS,
+    SEND_NON_XML_CUSTOM_FMTS,
+    SEND_STD_AND_NON_XML_CUSTOM_FMTS,
+    N_COLLATION_MODES
+  };
+
+  enum RollingEnabledValues
+  {
+    NO_ROLLING = 0,
+    ROLL_ON_TIME_ONLY,
+    ROLL_ON_SIZE_ONLY,
+    ROLL_ON_TIME_OR_SIZE,
+    ROLL_ON_TIME_AND_SIZE,
+    INVALID_ROLLING_VALUE
+  };
+
+  enum
+  {
+    MIN_ROLLING_INTERVAL_SEC = 60,   // 5 minute minimum rolling interval
+    MAX_ROLLING_INTERVAL_SEC = 86400  // 24 hrs rolling interval max
+  };
+
+  // main interface
+  static void init(int configFlags = 0);
+  static void init_fields();
+  inkcoreapi static bool transaction_logging_enabled()
+  {
+    return (logging_mode == LOG_MODE_FULL || logging_mode == LOG_MODE_TRANSACTIONS);
+  }
+
+  inkcoreapi static bool error_logging_enabled()
+  {
+    return (logging_mode == LOG_MODE_FULL || logging_mode == LOG_MODE_ERRORS);
+  }
+
+  inkcoreapi static int access(LogAccess * lad);
+  inkcoreapi static int va_error(const char *format, va_list ap);
+  inkcoreapi static int error(const char *format, ...) TS_PRINTFLIKE(1, 2);
+
+  // public data members
+  inkcoreapi static LogObject *error_log;
+  static LogConfig *config;
+  static LogFieldList global_field_list;
+//    static LogBufferList global_buffer_full_list; vl: not used
+//    static LogBufferList global_buffer_delete_list; vl: not used
+  static InkHashTable *field_symbol_hash;
+  static LogFormat *global_scrap_format;
+  static LogObject *global_scrap_object;
+  static LoggingMode logging_mode;
+
+  // logging thread stuff
+  static EventNotify *preproc_notify;
+  static void *preproc_thread_main(void *args);
+  static EventNotify *flush_notify;
+  static InkAtomicList *flush_data_list;
+  static void *flush_thread_main(void *args);
+
+  // collation thread stuff
+  static EventNotify collate_notify;
+  static ink_thread collate_thread;
+  static int collation_preproc_threads;
+  static int collation_accept_file_descriptor;
+  static int collation_port;
+  static void *collate_thread_main(void *args);
+  static LogObject *match_logobject(LogBufferHeader * header);
+
+  // reconfiguration stuff
+  static void change_configuration();
+  static int handle_logging_mode_change(const char *name, RecDataT data_type, RecData data, void *cookie);
+
+  Log();                        // shut up stupid DEC C++ compiler
+
+  friend void RegressionTest_LogObjectManager_Transfer(RegressionTest *, int, int *);
+private:
+
+  static void periodic_tasks(long time_now);
+  static void create_threads();
+  static void init_when_enabled();
+
+  static int init_status;
+  static int config_flags;
+  static bool logging_mode_changed;
+
+  // -- member functions that are not allowed --
+  Log(const Log & rhs);
+  Log & operator=(const Log & rhs);
+};
+
+
+static inline bool
+LogRollingEnabledIsValid(int enabled)
+{
+  return (enabled >= Log::NO_ROLLING || enabled < Log::INVALID_ROLLING_VALUE);
+}
+
+#endif
diff --git a/proxy/logging/LogAccess.cc b/proxy/logging/LogAccess.cc
new file mode 100644
index 00000000..5009113e
--- /dev/null
+++ b/proxy/logging/LogAccess.cc
@@ -0,0 +1,1427 @@
+/** @file
+
+  This file implements the LogAccess class.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section description
+  This file implements the LogAccess class.  However, LogAccess is an
+  abstract base class, providing an interface that logging uses to get
+  information from a module, such as HTTP or ICP.  Each module derives a
+  specific implementation from this base class (such as LogAccessHttp), and
+  implements the virtual accessor functions there.
+
+  The LogAccess class also defines a set of static functions that are used
+  to provide support for marshalling and unmarshalling support for the other
+  LogAccess derived classes.
+ */
+#include "libts.h"
+
+#include "Error.h"
+#include "HTTP.h"
+
+#include "P_Net.h"
+#include "P_Cache.h"
+#include "I_Machine.h"
+#include "LogAccess.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogUtils.h"
+#include "LogFormat.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogBuffer.h"
+#include "Log.h"
+
+
+/*-------------------------------------------------------------------------
+  LogAccess::init
+  -------------------------------------------------------------------------*/
+
+void
+LogAccess::init()
+{
+  if (initialized) {
+    return;
+  }
+  //
+  // Here is where we would perform any initialization code.
+  //
+
+  initialized = true;
+}
+
+/*-------------------------------------------------------------------------
+  The following functions provide a default implementation for the base
+  class marshalling routines so that each subsequent LogAccess* class only
+  has to implement those functions that are to override this default
+  implementation.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_plugin_identity_id(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+int
+LogAccess::marshal_plugin_identity_tag(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+int
+LogAccess::marshal_client_host_ip(char *buf)
+{
+  DEFAULT_IP_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_host_port(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_auth_user_name(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_text(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_http_method(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_url(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_url_canon(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_unmapped_url_canon(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_unmapped_url_path(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_unmapped_url_host(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_url_path(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_url_scheme(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  This case is special because it really stores 2 ints.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_http_version(char *buf)
+{
+  if (buf) {
+    int64_t major = 0;
+    int64_t minor = 0;
+    marshal_int(buf, major);
+    marshal_int((buf + INK_MIN_ALIGN), minor);
+  }
+  return (2 * INK_MIN_ALIGN);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_header_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_body_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_finish_status_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_resp_content_type(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_resp_squid_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_resp_content_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_resp_status_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_resp_header_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_finish_status_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_cache_result_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_req_header_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_req_body_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_req_server_name(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_req_server_ip(char *buf)
+{
+  DEFAULT_IP_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_hierarchy_route(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+#ifndef INK_NO_CONGESTION_CONTROL
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_retry_after_time(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+#endif
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_host_name(char *buf)
+{
+  char *str = NULL;
+  int len = 0;
+  Machine *machine = Machine::instance();
+
+  if (machine) {
+    str = machine->hostname;
+  }
+
+  len = LogAccess::strlen(str);
+
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_proxy_host_ip(char *buf)
+{
+  return marshal_ip(buf, &Machine::instance()->ip.sa);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_server_host_ip(char *buf)
+{
+  DEFAULT_IP_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_server_host_name(char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_server_resp_status_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_server_resp_content_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_server_resp_header_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  This case is special because it really stores 2 ints.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_server_resp_http_version(char *buf)
+{
+  if (buf) {
+    int64_t major = 0;
+    int64_t minor = 0;
+    marshal_int(buf, major);
+    marshal_int((buf + INK_MIN_ALIGN), minor);
+  }
+  return (2 * INK_MIN_ALIGN);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_cache_resp_status_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_cache_resp_content_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_cache_resp_header_len(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  This case is special because it really stores 2 ints.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_cache_resp_http_version(char *buf)
+{
+  if (buf) {
+    int64_t major = 0;
+    int64_t minor = 0;
+    marshal_int(buf, major);
+    marshal_int((buf + INK_MIN_ALIGN), minor);
+  }
+  return (2 * INK_MIN_ALIGN);
+}
+
+int
+LogAccess::marshal_cache_write_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+int
+LogAccess::marshal_cache_write_transform_code(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_transfer_time_ms(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+int
+LogAccess::marshal_transfer_time_s(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_file_size(char *buf)
+{
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+int
+LogAccess::marshal_http_header_field(LogField::Container /* container ATS_UNUSED */,
+                                     char * /* field ATS_UNUSED */, char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+
+/*-------------------------------------------------------------------------
+
+  -------------------------------------------------------------------------*/
+int
+LogAccess::marshal_http_header_field_escapify(LogField::Container /* container ATS_UNUSED */,
+                                              char * /* field ATS_UNUSED */, char *buf)
+{
+  DEFAULT_STR_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+
+  The following functions have a non-virtual base-class implementation.
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  LogAccess::marshal_client_req_timestamp_sec
+
+  This does nothing because the timestamp is already in the LogEntryHeader.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_client_req_timestamp_sec(char *buf)
+{
+  // in the case of aggregate fields, we need the space, so we'll always
+  // reserve it.  For a non-aggregate timestamp, this space is not used.
+  DEFAULT_INT_FIELD;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_entry_type(char *buf)
+{
+  if (buf) {
+    int64_t val = (int64_t) entry_type();
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_config_int_var(char *config_var, char *buf)
+{
+  if (buf) {
+    int64_t val = (int64_t) REC_ConfigReadInteger(config_var);
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_config_str_var(char *config_var, char *buf)
+{
+  char *str = NULL;
+  str = REC_ConfigReadString(config_var);
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  ats_free(str);
+  return len;
+}
+
+// To allow for a generic marshal_record function, rather than
+// multiple functions (one per data type) we always marshal a record
+// as a string of a fixed length.  We use a fixed length because the
+// marshal_record function can be called with a null *buf to request
+// the length of the record, and later with a non-null *buf to
+// actually request the record to be inserted in the buffer, and both
+// calls should return the same number of characters. If we did not
+// enforce a fixed size, this would not necesarilly be the case
+// because records --statistics in particular-- can potentially change
+// between one call and the other.
+//
+int
+LogAccess::marshal_record(char *record, char *buf)
+{
+  const unsigned int max_chars = MARSHAL_RECORD_LENGTH;
+
+  if (NULL == buf) {
+    return max_chars;
+  }
+
+  const char *record_not_found_msg = "RECORD_NOT_FOUND";
+  const unsigned int record_not_found_chars = 17;
+  ink_assert(::strlen(record_not_found_msg) + 1 == record_not_found_chars);
+
+  char ascii_buf[max_chars];
+  const char *out_buf;
+  unsigned int num_chars;
+
+#define LOG_INTEGER RECD_INT
+#define LOG_COUNTER RECD_COUNTER
+#define LOG_FLOAT   RECD_FLOAT
+#define LOG_STRING  RECD_STRING
+
+  RecDataT stype = RECD_NULL;
+  bool found = false;
+
+  if (RecGetRecordDataType(record, &stype) != REC_ERR_OKAY) {
+    out_buf = "INVALID_RECORD";
+    num_chars = 15;
+    ink_assert(::strlen(out_buf) + 1 == num_chars);
+  } else {
+    if (LOG_INTEGER == stype || LOG_COUNTER == stype) {
+      // we assume MgmtInt and MgmtIntCounter are int64_t for the
+      // conversion below, if this ever changes we should modify
+      // accordingly
+      //
+      ink_assert(sizeof(int64_t) >= sizeof(RecInt) && sizeof(int64_t) >= sizeof(RecCounter));
+
+      // so that a 64 bit integer will fit (including sign and eos)
+      //
+      ink_assert(max_chars > 21);
+
+      int64_t val = (int64_t) (LOG_INTEGER == stype ? REC_readInteger(record, &found) : REC_readCounter(record, &found));
+
+      if (found) {
+
+        out_buf = int64_to_str(ascii_buf, max_chars, val, &num_chars);
+        ink_assert(out_buf);
+      } else {
+        out_buf = (char *) record_not_found_msg;
+        num_chars = record_not_found_chars;
+      }
+    } else if (LOG_FLOAT == stype) {
+      // we assume MgmtFloat is at least a float for the conversion below
+      // (the conversion itself assumes a double because of the %e)
+      // if this ever changes we should modify accordingly
+      //
+      ink_assert(sizeof(double) >= sizeof(RecFloat));
+
+      RecFloat val = REC_readFloat(record, &found);
+
+      if (found) {
+        // snprintf does not support "%e" in the format
+        // and we want to use "%e" because it is the most concise
+        // notation
+
+        num_chars = snprintf(ascii_buf, sizeof(ascii_buf), "%e", val) + 1;      // include eos
+
+        // the "%e" field above should take 13 characters at most
+        //
+        ink_assert(num_chars <= max_chars);
+
+        // the following should never be true
+        //
+        if (num_chars > max_chars) {
+          // data does not fit, output asterisks
+          out_buf = "***";
+          num_chars = 4;
+          ink_assert(::strlen(out_buf) + 1 == num_chars);
+        } else {
+          out_buf = ascii_buf;
+        }
+      } else {
+        out_buf = (char *) record_not_found_msg;
+        num_chars = record_not_found_chars;
+      }
+    } else if (LOG_STRING == stype) {
+      out_buf = REC_readString(record, &found);
+
+      if (found) {
+        if (out_buf != 0 && out_buf[0] != 0) {
+          num_chars =::strlen(out_buf) + 1;
+          if (num_chars > max_chars) {
+            // truncate string and write ellipsis at the end
+            memcpy(ascii_buf, out_buf, max_chars - 4);
+            ascii_buf[max_chars - 1] = 0;
+            ascii_buf[max_chars - 2] = '.';
+            ascii_buf[max_chars - 3] = '.';
+            ascii_buf[max_chars - 4] = '.';
+            out_buf = ascii_buf;
+            num_chars = max_chars;
+          }
+        } else {
+          out_buf = "NULL";
+          num_chars = 5;
+          ink_assert(::strlen(out_buf) + 1 == num_chars);
+        }
+      } else {
+        out_buf = (char *) record_not_found_msg;
+        num_chars = record_not_found_chars;
+      }
+    } else {
+      out_buf = "INVALID_MgmtType";
+      num_chars = 17;
+      ink_assert(!"invalid MgmtType for requested record");
+      ink_assert(::strlen(out_buf) + 1 == num_chars);
+    }
+  }
+
+  ink_assert(num_chars <= max_chars);
+  memcpy(buf, out_buf, num_chars);
+
+
+  return max_chars;
+}
+
+
+/*-------------------------------------------------------------------------
+  LogAccess::marshal_str
+
+  Copy the given string to the destination buffer, including the trailing
+  NULL.  For binary formatting, we need the NULL to distinguish the end of
+  the string, and we'll remove it for ascii formatting.
+  ASSUMES dest IS NOT NULL.
+  The array pointed to by dest must be at least padded_len in length.
+  -------------------------------------------------------------------------*/
+
+void
+LogAccess::marshal_str(char *dest, const char *source, int padded_len)
+{
+  if (source == NULL || source[0] == 0 || padded_len == 0) {
+    source = DEFAULT_STR;
+  }
+  ink_strlcpy(dest, source, padded_len);
+
+#ifdef DEBUG
+  //
+  // what padded_len should be, if there is no padding, is strlen()+1.
+  // if not, then we needed to pad and should touch the intermediate
+  // bytes to avoid UMR errors when the buffer is written.
+  //
+  size_t real_len = (::strlen(source) + 1);
+  while ((int) real_len < padded_len) {
+    dest[real_len] = '$';
+    real_len++;
+  }
+#endif
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::marshal_mem
+
+  This is a version of marshal_str that works with unterminated strings.
+  In this case, we'll copy the buffer and then add a trailing null that
+  the rest of the system assumes.
+  -------------------------------------------------------------------------*/
+
+void
+LogAccess::marshal_mem(char *dest, const char *source, int actual_len, int padded_len)
+{
+  if (source == NULL || source[0] == 0 || actual_len == 0) {
+    source = DEFAULT_STR;
+    actual_len = DEFAULT_STR_LEN;
+    ink_assert(actual_len < padded_len);
+  }
+  memcpy(dest, source, actual_len);
+  dest[actual_len] = 0;         // add terminating null
+
+#ifdef DEBUG
+  //
+  // what len should be, if there is no padding, is strlen()+1.
+  // if not, then we needed to pad and should touch the intermediate
+  // bytes to avoid UMR errors when the buffer is written.
+  //
+  int real_len = actual_len + 1;
+  while (real_len < padded_len) {
+    dest[real_len] = '$';
+    real_len++;
+  }
+#endif
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::marshal_ip
+
+  Marshal an IP address in a reasonably compact way. If the address isn't
+  valid (NULL or not IP) then marshal an invalid address record.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::marshal_ip(char* dest, sockaddr const* ip) {
+  LogFieldIpStorage data;
+  int len = sizeof(data._ip);
+  if (ats_is_ip4(ip)) {
+    if (dest) {
+      data._ip4._family = AF_INET;
+      data._ip4._addr = ats_ip4_addr_cast(ip);
+    }
+    len = sizeof(data._ip4);
+  } else if (ats_is_ip6(ip)) {
+    if (dest) {
+      data._ip6._family = AF_INET6;
+      data._ip6._addr = ats_ip6_addr_cast(ip);
+    }
+    len = sizeof(data._ip6);
+  } else {
+    data._ip._family = AF_UNSPEC;
+  }
+
+  if (dest) memcpy(dest, &data, len);
+  return INK_ALIGN_DEFAULT(len);
+}
+
+inline int
+LogAccess::unmarshal_with_map(int64_t code, char *dest, int len, Ptr<LogFieldAliasMap> map, const char *msg)
+{
+  int codeStrLen;
+
+  switch (map->asString(code, dest, len, (size_t *) & codeStrLen)) {
+  case LogFieldAliasMap::INVALID_INT:
+    if (msg) {
+      const int bufSize = 64;
+      char invalidCodeMsg[bufSize];
+      codeStrLen = snprintf(invalidCodeMsg, 64, "%s(%" PRId64 ")", msg, code);
+      if (codeStrLen < bufSize && codeStrLen < len) {
+        ink_strlcpy(dest, invalidCodeMsg, len);
+      } else {
+        codeStrLen = -1;
+      }
+    } else {
+      codeStrLen = -1;
+    }
+    break;
+  case LogFieldAliasMap::BUFFER_TOO_SMALL:
+    codeStrLen = -1;
+    break;
+  }
+
+  return codeStrLen;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_int
+
+  Return the integer pointed at by the buffer and advance the buffer
+  pointer past the int.  The int will be converted back to host byte order.
+  -------------------------------------------------------------------------*/
+
+int64_t
+LogAccess::unmarshal_int(char **buf)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  int64_t val;
+
+  // TODO: this used to do nthol, do we need to worrry? TS-1156.
+  val = *((int64_t *)(*buf));
+  *buf += INK_MIN_ALIGN;
+  return val;
+}
+
+/*-------------------------------------------------------------------------
+  unmarshal_itoa
+
+  This routine provides a fast conversion from a binary int to a string.
+  It returns the number of characters formatted.  "dest" must point to the
+  LAST character of an array large enough to store the complete formatted
+  number.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_itoa(int64_t val, char *dest, int field_width, char leading_char)
+{
+  ink_assert(dest != NULL);
+
+  char *p = dest;
+
+  if (val <= 0) {
+    *p-- = '0';
+    while (dest - p < field_width) {
+      *p-- = leading_char;
+    }
+    return (int)(dest - p);
+  }
+
+  while (val) {
+    *p-- = '0' + (val % 10);
+    val /= 10;
+  }
+  while (dest - p < field_width) {
+    *p-- = leading_char;
+  }
+  return (int)(dest - p);
+}
+
+/*-------------------------------------------------------------------------
+  unmarshal_itox
+
+  This routine provides a fast conversion from a binary int to a hex string.
+  It returns the number of characters formatted.  "dest" must point to the
+  LAST character of an array large enough to store the complete formatted
+  number.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_itox(int64_t val, char *dest, int field_width, char leading_char)
+{
+  ink_assert(dest != NULL);
+
+  char *p = dest;
+  static char table[] = "0123456789abcdef?";
+
+  for (int i = 0; i < (int)(sizeof(int64_t) * 2); i++) {
+    *p-- = table[val & 0xf];
+    val >>= 4;
+  }
+  while (dest - p < field_width) {
+    *p-- = leading_char;
+  }
+
+  return (int64_t)(dest - p);
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_int_to_str
+
+  Return the string representation of the integer pointed at by buf.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_int_to_str(char **buf, char *dest, int len)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  char val_buf[128];
+  int64_t val = unmarshal_int(buf);
+  int val_len = unmarshal_itoa(val, val_buf + 127);
+
+  if (val_len < len) {
+    memcpy(dest, val_buf + 128 - val_len, val_len);
+    return val_len;
+  }
+  return -1;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_int_to_str_hex
+
+  Return the string representation (hexadecimal) of the integer pointed at by buf.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_int_to_str_hex(char **buf, char *dest, int len)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  char val_buf[128];
+  int64_t val = unmarshal_int(buf);
+  int val_len = unmarshal_itox(val, val_buf + 127);
+
+  if (val_len < len) {
+    memcpy(dest, val_buf + 128 - val_len, val_len);
+    return val_len;
+  }
+  return -1;
+}
+
+
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_str
+
+  Retrieve the string from the location pointed at by the buffer and
+  advance the pointer past the string.  The local strlen function is used
+  to advance the pointer, thus matching the corresponding strlen that was
+  used to lay the string into the buffer.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_str(char **buf, char *dest, int len, LogSlice *slice)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  char *val_buf = *buf;
+  int val_len = (int)::strlen(val_buf);
+
+  *buf += LogAccess::strlen(val_buf);   // this is how it was stored
+
+  if (slice && slice->m_enable) {
+    int offset, n;
+
+    n = slice->toStrOffset(val_len, &offset);
+    if (n <= 0)
+      return 0;
+
+    if (n >= len)
+      return -1;
+
+    memcpy(dest, (val_buf + offset), n);
+    return n;
+  }
+
+  if (val_len < len) {
+    memcpy(dest, val_buf, val_len);
+    return val_len;
+  }
+  return -1;
+}
+
+int
+LogAccess::unmarshal_ttmsf(char **buf, char *dest, int len)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  int64_t val = unmarshal_int(buf);
+  float secs = (float) val / 1000;
+  int val_len = snprintf(dest, len, "%.3f", secs);
+  return val_len;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_http_method
+
+  Retrieve the int pointed at by the buffer and treat as an HttpMethod
+  enumerated type.  Then lookup the string representation for that enum and
+  return the string.  Advance the buffer pointer past the enum.
+  -------------------------------------------------------------------------*/
+/*
+int
+LogAccess::unmarshal_http_method (char **buf, char *dest, int len)
+{
+    return unmarshal_str (buf, dest, len);
+}
+*/
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_http_version
+
+  The http version is marshalled as two consecutive integers, the first for
+  the major number and the second for the minor number.  Retrieve both
+  numbers and return the result as "HTTP/major.minor".
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_http_version(char **buf, char *dest, int len)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  static const char *http = "HTTP/";
+  static int http_len = (int)::strlen(http);
+
+  char val_buf[128];
+  char *p = val_buf;
+
+  memcpy(p, http, http_len);
+  p += http_len;
+
+  int res1 = unmarshal_int_to_str(buf, p, 128 - http_len);
+  if (res1 < 0) {
+    return -1;
+  }
+  p += res1;
+  *p++ = '.';
+  int res2 = unmarshal_int_to_str(buf, p, 128 - http_len - res1 - 1);
+  if (res2 < 0) {
+    return -1;
+  }
+
+  int val_len = http_len + res1 + res2 + 1;
+  if (val_len < len) {
+    memcpy(dest, val_buf, val_len);
+    return val_len;
+  }
+  return -1;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_http_text
+
+  The http text is simply the fields http_method (cqhm) + url (cqu) +
+  http_version (cqhv), all right next to each other, in that order.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_http_text(char **buf, char *dest, int len, LogSlice *slice)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  char *p = dest;
+
+//    int res1 = unmarshal_http_method (buf, p, len);
+  int res1 = unmarshal_str(buf, p, len);
+  if (res1 < 0) {
+    return -1;
+  }
+  p += res1;
+  *p++ = ' ';
+  int res2 = unmarshal_str(buf, p, len - res1 - 1, slice);
+  if (res2 < 0) {
+    return -1;
+  }
+  p += res2;
+  *p++ = ' ';
+  int res3 = unmarshal_http_version(buf, p, len - res1 - res2 - 2);
+  if (res3 < 0) {
+    return -1;
+  }
+  return res1 + res2 + res3 + 2;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_http_status
+
+  An http response status code (pssc,sssc) is just an INT, but it's always
+  formatted with three digits and leading zeros.  So, we need a special
+  version of unmarshal_int_to_str that does this leading zero formatting.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_http_status(char **buf, char *dest, int len)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  char val_buf[128];
+  int64_t val = unmarshal_int(buf);
+  int val_len = unmarshal_itoa(val, val_buf + 127, 3, '0');
+  if (val_len < len) {
+    memcpy(dest, val_buf + 128 - val_len, val_len);
+    return val_len;
+  }
+  return -1;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_ip
+
+  Retrieve an IP address directly.
+  -------------------------------------------------------------------------*/
+int
+LogAccess::unmarshal_ip(char **buf, IpEndpoint* dest)
+{
+  int len = sizeof(LogFieldIp); // of object processed.
+
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  LogFieldIp* raw = reinterpret_cast<LogFieldIp*>(*buf);
+  if (AF_INET == raw->_family) {
+    LogFieldIp4* ip4 = static_cast<LogFieldIp4*>(raw);
+    ats_ip4_set(dest, ip4->_addr);
+    len = sizeof(*ip4);
+  } else if (AF_INET6 == raw->_family) {
+    LogFieldIp6* ip6 = static_cast<LogFieldIp6*>(raw);
+    ats_ip6_set(dest, ip6->_addr);
+    len = sizeof(*ip6);
+  } else {
+    ats_ip_invalidate(dest);
+  }
+  len = INK_ALIGN_DEFAULT(len);
+  *buf += len;
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_ip_to_str
+
+  Retrieve the IP addresspointed at by the buffer and convert to a
+  string in standard format. The string is written to @a dest and its
+  length (not including nul) is returned. @a *buf is advanced.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_ip_to_str(char **buf, char *dest, int len)
+{
+  IpEndpoint ip;
+
+  unmarshal_ip(buf, &ip);
+  return ats_ip_ntop(&ip, dest, len) ? static_cast<int>(::strlen(dest)) : -1;
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_ip_to_hex
+
+  Retrieve the int pointed at by the buffer and treat as an IP
+  address.  Convert to a string in byte oriented hexadeciaml and
+  return the string.  Advance the buffer pointer.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_ip_to_hex(char **buf, char *dest, int len)
+{
+  IpEndpoint ip;
+  unmarshal_ip(buf, &ip);
+  return ats_ip_to_hex(&ip.sa, dest, len);
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_hierarchy
+
+  Retrieve the int pointed at by the buffer and treat as a
+  SquidHierarchyCode.  Use this as an index into the local string
+  conversion tables and return the string equivalent to the enum.
+  Advance the buffer pointer.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_hierarchy(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  return (LogAccess::unmarshal_with_map(unmarshal_int(buf), dest, len, map, "INVALID_CODE"));
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_finish_status
+
+  Retrieve the int pointed at by the buffer and treat as a finish code.
+  Use the enum as an index into a string table and return the string equiv
+  of the enum.  Advance the pointer.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_finish_status(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  return (LogAccess::unmarshal_with_map(unmarshal_int(buf), dest, len, map, "UNKNOWN_FINISH_CODE"));
+}
+
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_cache_code
+
+  Retrieve the int pointed at by the buffer and treat as a SquidLogCode.
+  Use this to index into the local string tables and return the string
+  equiv of the enum.  Advance the pointer.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_cache_code(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  return (LogAccess::unmarshal_with_map(unmarshal_int(buf), dest, len, map, "ERROR_UNKNOWN"));
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::unmarshal_entry_type
+  -------------------------------------------------------------------------*/
+
+int
+LogAccess::unmarshal_entry_type(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  return (LogAccess::unmarshal_with_map(unmarshal_int(buf), dest, len, map, "UNKNOWN_ENTRY_TYPE"));
+}
+
+int
+LogAccess::unmarshal_cache_write_code(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  return (LogAccess::unmarshal_with_map(unmarshal_int(buf), dest, len, map, "UNKNOWN_CACHE_WRITE_CODE"));
+}
+
+int
+LogAccess::unmarshal_record(char **buf, char *dest, int len)
+{
+  ink_assert(buf != NULL);
+  ink_assert(*buf != NULL);
+  ink_assert(dest != NULL);
+
+  char *val_buf = *buf;
+  int val_len = (int)::strlen(val_buf);
+  *buf += MARSHAL_RECORD_LENGTH;        // this is how it was stored
+  if (val_len < len) {
+    memcpy(dest, val_buf, val_len);
+    return val_len;
+  }
+  return -1;
+}
+
+/*-------------------------------------------------------------------------
+  resolve_logfield_string
+
+  This function resolves the given custom log format string using the given
+  LogAccess context and returns the resulting string, which is ats_malloc'd.
+  The caller is responsible for ats_free'ing the return result.  If there are
+  any problems, NULL is returned.
+  -------------------------------------------------------------------------*/
+char *
+resolve_logfield_string(LogAccess *context, const char *format_str)
+{
+  if (!context) {
+    Debug("log-resolve", "No context to resolve?");
+    return NULL;
+  }
+
+  if (!format_str) {
+    Debug("log-resolve", "No format to resolve?");
+    return NULL;
+  }
+
+  Debug("log-resolve", "Resolving: %s", format_str);
+
+  //
+  // Divide the format string into two parts: one for the printf-style
+  // string and one for the symbols.
+  //
+  char *printf_str = NULL;
+  char *fields_str = NULL;
+  int n_fields = LogFormat::parse_format_string(format_str, &printf_str, &fields_str);
+
+  //
+  // Perhaps there were no fields to resolve?  Then just return the
+  // format_str. Nothing to free here either.
+  //
+  if (!n_fields) {
+    Debug("log-resolve", "No fields found; returning copy of format_str");
+    return ats_strdup(format_str);
+  }
+
+  Debug("log-resolve", "%d fields: %s", n_fields, fields_str);
+  Debug("log-resolve", "printf string: %s", printf_str);
+
+  LogFieldList fields;
+  bool contains_aggregates;
+  int field_count = LogFormat::parse_symbol_string(fields_str, &fields, &contains_aggregates);
+
+  if (field_count != n_fields) {
+    Error("format_str contains %d invalid field symbols", n_fields - field_count);
+    ats_free(printf_str);
+    ats_free(fields_str);
+    return NULL;
+  }
+  //
+  // Ok, now marshal the data out of the LogAccess object and into a
+  // temporary storage buffer.  Make sure the LogAccess context is
+  // initialized first.
+  //
+  Debug("log-resolve", "Marshaling data from LogAccess into buffer ...");
+  context->init();
+  unsigned bytes_needed = fields.marshal_len(context);
+  char *buf = (char *) ats_malloc(bytes_needed);
+  unsigned bytes_used = fields.marshal(context, buf);
+
+  ink_assert(bytes_needed == bytes_used);
+  Debug("log-resolve", "    %u bytes marshalled", bytes_used);
+
+  //
+  // Now we can "unmarshal" the data from the buffer into a string,
+  // combining it with the data from the printf string.  The problem is,
+  // we're not sure how much space it will take when it's unmarshalled.
+  // So, we'll just guess.
+  //
+  char *result = (char *) ats_malloc(8192);
+  unsigned bytes_resolved = LogBuffer::resolve_custom_entry(&fields, printf_str, buf, result,
+                                                            8191, LogUtils::timestamp(), 0,
+                                                            LOG_SEGMENT_VERSION);
+  ink_assert(bytes_resolved < 8192);
+
+  if (!bytes_resolved) {
+    ats_free(result);
+    result = NULL;
+  } else
+    result[bytes_resolved] = 0; // NULL terminate
+
+  ats_free(printf_str);
+  ats_free(fields_str);
+  ats_free(buf);
+
+  return result;
+}
diff --git a/proxy/logging/LogAccess.h b/proxy/logging/LogAccess.h
new file mode 100644
index 00000000..8fb35b55
--- /dev/null
+++ b/proxy/logging/LogAccess.h
@@ -0,0 +1,368 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ Logging - LogAccess.h
+
+
+ ***************************************************************************/
+#ifndef LOG_ACCESS_H
+#define LOG_ACCESS_H
+#include "libts.h"
+#include "LogField.h"
+
+/*-------------------------------------------------------------------------
+  LogAccess
+
+  This class defines the logging system interface for extracting
+  information required to process a log entry.  This accessor is
+  implemented as an abstract base class with virtual functions for
+  accessing the data based on the derived class.
+
+  NOTE that some accessors are declared non-virtual, meaning that they
+  provide an implementation in this base class that is NOT TO BE
+  OVERRIDDEN.  This is used for fields that are already part of the
+  LogEntryHeader, and thus do not need to be marshalled.  So, these
+  functions do nothing and return 0.
+
+  Each function has the ability to marshal its data into a buffer that is
+  provided, and return the number of bytes that were marshalled.  In the
+  absence of a marshalling buffer, the routines will simply return the
+  number of bytes that would be needed to marshal.  This allows for the
+  same functions to be used for both buffer length computations and data
+  movement.
+
+  Logging deals with values of just two possible data types: integers
+  (including enum) and strings.   Because the integers are multi-byte
+  values that might need special alignment needs when being marshalled,
+  this base class provides a static member function called marshal_int()
+  that handles this (including checking for a NULL buffer).  The template
+  for implementing integer and enum marshalling routines is:
+
+      int marshal_some_int_value (char *buf)
+      {
+          if (buf) {
+	      int64_t val = what_the_value_should_be;
+              marshal_int (buf, val);
+	  }
+	  return INK_MIN_ALIGN;
+      }
+
+  String values don't need byte swapping, but we do want to ensure things
+  like trailing NULLS and padding.  The best way to do this is to provide a
+  marshalling routine that takes a source buffer, a string, and its length,
+  and makes sure the string is copied into the source buffer with a
+  trailing NULL.  We've also provided our own strlen() function within the
+  class to adjust for trailing NULL as well.  So, here is how it would look
+  to actually use these functions for marshalling a string value:
+
+      int marshal_some_string_value (char *buf)
+      {
+	  char *str = compute_or_locate_string_value ();
+	  int len = LogAccess::strlen (str);
+	  if (buf) {
+	      marshal_str (buf, str, len);
+	  }
+	  return len;
+      }
+
+  -------------------------------------------------------------------------*/
+
+// DEFAULT_STR_LEN MUST be less than INK_MIN_ALIGN
+#define DEFAULT_STR	"-"
+#define DEFAULT_STR_LEN 1
+
+#define DEFAULT_INT_FIELD {\
+    if (buf) { \
+      int64_t i = 0; \
+      marshal_int (buf, i); \
+    } \
+    return INK_MIN_ALIGN; \
+}
+
+#define DEFAULT_STR_FIELD {\
+    char * str = NULL; \
+    int len = INK_MIN_ALIGN; \
+    if (buf) { \
+      marshal_str (buf, str, len); \
+    } \
+    return len; \
+}
+
+#define DEFAULT_IP_FIELD {\
+    int len = sizeof(LogFieldIp); \
+    if (buf) { \
+      len = marshal_ip (buf, NULL); \
+    } \
+    return len; \
+}
+
+// should be at least 22 bytes to always accomodate a converted
+// MgmtInt, MgmtIntCounter or MgmtFloat. 22 bytes is enough for 64 bit
+// ints + sign + eos, and enough for %e floating point representation
+// + eos
+//
+#define MARSHAL_RECORD_LENGTH 32
+
+enum LogEntryType
+{
+  LOG_ENTRY_HTTP = 0,
+  LOG_ENTRY_ICP,
+  N_LOG_ENTRY_TYPES
+};
+
+enum LogFinishCodeType
+{
+  LOG_FINISH_FIN = 0,
+  LOG_FINISH_INTR,
+  LOG_FINISH_TIMEOUT,
+  N_LOG_FINISH_CODE_TYPES
+};
+
+enum LogCacheWriteCodeType
+{
+  LOG_CACHE_WRITE_NONE = 0,
+  LOG_CACHE_WRITE_LOCK_MISSED,
+  LOG_CACHE_WRITE_LOCK_ABORTED,
+  LOG_CACHE_WRITE_ERROR,
+  LOG_CACHE_WRITE_COMPLETE,
+  N_LOG_CACHE_WRITE_TYPES
+};
+
+
+class LogAccess
+{                               // Abstract Base Class
+public:
+  inkcoreapi LogAccess()
+    : initialized(false)
+  { }
+
+  inkcoreapi virtual ~LogAccess()
+  { }
+
+  inkcoreapi virtual void init();
+
+  virtual LogEntryType entry_type() = 0;
+
+  //
+  // client -> proxy fields
+  //
+  inkcoreapi virtual int marshal_client_host_ip(char *);        // STR
+  inkcoreapi virtual int marshal_client_host_port(char *);      // INT
+  inkcoreapi virtual int marshal_client_auth_user_name(char *); // STR
+  int marshal_client_req_timestamp_sec(char *); // INT
+
+  inkcoreapi virtual int marshal_client_req_text(char *);       // STR
+  inkcoreapi virtual int marshal_client_req_http_method(char *);        // STR
+  inkcoreapi virtual int marshal_client_req_url(char *);        // STR
+  inkcoreapi virtual int marshal_client_req_url_canon(char *);  // STR
+  inkcoreapi virtual int marshal_client_req_unmapped_url_canon(char *); // STR
+  inkcoreapi virtual int marshal_client_req_unmapped_url_path(char *);  // STR
+  inkcoreapi virtual int marshal_client_req_unmapped_url_host(char *);  // STR
+  inkcoreapi virtual int marshal_client_req_url_path(char *);   // STR
+  inkcoreapi virtual int marshal_client_req_url_scheme(char *); // STR
+  inkcoreapi virtual int marshal_client_req_http_version(char *);       // INT
+  inkcoreapi virtual int marshal_client_req_header_len(char *); // INT
+  inkcoreapi virtual int marshal_client_req_body_len(char *);   // INT
+  inkcoreapi virtual int marshal_client_finish_status_code(char *);     // INT
+
+  //
+  // proxy -> client fields
+  //
+  inkcoreapi virtual int marshal_proxy_resp_content_type(char *);       // STR
+  inkcoreapi virtual int marshal_proxy_resp_squid_len(char *);  // INT
+  inkcoreapi virtual int marshal_proxy_resp_content_len(char *);        // INT
+  inkcoreapi virtual int marshal_proxy_resp_status_code(char *);        // INT
+  inkcoreapi virtual int marshal_proxy_resp_header_len(char *); // INT
+  inkcoreapi virtual int marshal_proxy_finish_status_code(char *);      // INT
+  inkcoreapi virtual int marshal_cache_result_code(char *);     // INT
+
+  //
+  // proxy -> server fields
+  //
+  inkcoreapi virtual int marshal_proxy_req_header_len(char *);  // INT
+  inkcoreapi virtual int marshal_proxy_req_body_len(char *);    // INT
+  inkcoreapi virtual int marshal_proxy_req_server_name(char *); // STR
+  inkcoreapi virtual int marshal_proxy_req_server_ip(char *);   // INT
+  inkcoreapi virtual int marshal_proxy_hierarchy_route(char *); // INT
+  inkcoreapi virtual int marshal_proxy_host_name(char *);       // STR
+  inkcoreapi virtual int marshal_proxy_host_ip(char *); // STR
+
+  //
+  // server -> proxy fields
+  //
+  inkcoreapi virtual int marshal_server_host_ip(char *);        // INT
+  inkcoreapi virtual int marshal_server_host_name(char *);      // STR
+  inkcoreapi virtual int marshal_server_resp_status_code(char *);       // INT
+  inkcoreapi virtual int marshal_server_resp_content_len(char *);       // INT
+  inkcoreapi virtual int marshal_server_resp_header_len(char *);        // INT
+  inkcoreapi virtual int marshal_server_resp_http_version(char *);      // INT
+
+  //
+  // cache -> client fields
+  //
+  inkcoreapi virtual int marshal_cache_resp_status_code(char *);  // INT
+  inkcoreapi virtual int marshal_cache_resp_content_len(char *);  // INT
+  inkcoreapi virtual int marshal_cache_resp_header_len(char *);   // INT
+  inkcoreapi virtual int marshal_cache_resp_http_version(char *); // INT
+
+
+  inkcoreapi virtual void set_client_req_url(char *, int) {};        // STR
+  inkcoreapi virtual void set_client_req_url_canon(char *, int) {};  // STR
+  inkcoreapi virtual void set_client_req_unmapped_url_canon(char *, int) {}; // STR
+  inkcoreapi virtual void set_client_req_unmapped_url_path(char *, int) {};  // STR
+  inkcoreapi virtual void set_client_req_unmapped_url_host(char *, int) {};  // STR
+  inkcoreapi virtual void set_client_req_url_path(char *, int) {};   // STR
+
+  //
+  // congestion control -- client_retry_after_time
+  //
+  inkcoreapi virtual int marshal_client_retry_after_time(char *);       // INT
+
+  //
+  // cache write fields
+  //
+  inkcoreapi virtual int marshal_cache_write_code(char *);      // INT
+  inkcoreapi virtual int marshal_cache_write_transform_code(char *);    // INT
+
+  // other fields
+  //
+  inkcoreapi virtual int marshal_transfer_time_ms(char *);      // INT
+  inkcoreapi virtual int marshal_transfer_time_s(char *);       // INT
+  inkcoreapi virtual int marshal_file_size(char *);     // INT
+  inkcoreapi virtual int marshal_plugin_identity_id(char *); // INT
+  inkcoreapi virtual int marshal_plugin_identity_tag(char *); // STR
+  int marshal_entry_type(char *);       // INT
+
+
+  // named fields from within a http header
+  //
+  inkcoreapi virtual int marshal_http_header_field(LogField::Container container, char *field, char *buf);
+  inkcoreapi virtual int marshal_http_header_field_escapify(LogField::Container container, char *field, char *buf);
+
+  //
+  // named records.config int variables
+  //
+  int marshal_config_int_var(char *config_var, char *buf);
+
+  //
+  // named records.config string variables
+  //
+  int marshal_config_str_var(char *config_var, char *buf);
+
+  //
+  // generic record access
+  //
+  int marshal_record(char *record, char *buf);
+
+  //
+  // unmarshalling routines
+  //
+  // They used to return a string; now they unmarshal directly into the
+  // destination buffer supplied.
+  //
+  static int64_t unmarshal_int(char **buf);
+  static int unmarshal_itoa(int64_t val, char *dest, int field_width = 0, char leading_char = ' ');
+  static int unmarshal_itox(int64_t val, char *dest, int field_width = 0, char leading_char = ' ');
+  static int unmarshal_int_to_str(char **buf, char *dest, int len);
+  static int unmarshal_int_to_str_hex(char **buf, char *dest, int len);
+  static int unmarshal_str(char **buf, char *dest, int len, LogSlice *slice = NULL);
+  static int unmarshal_ttmsf(char **buf, char *dest, int len);
+  static int unmarshal_http_version(char **buf, char *dest, int len);
+  static int unmarshal_http_text(char **buf, char *dest, int len, LogSlice *slice = NULL);
+  static int unmarshal_http_status(char **buf, char *dest, int len);
+  static int unmarshal_ip(char** buf, IpEndpoint* dest);
+  static int unmarshal_ip_to_str(char **buf, char *dest, int len);
+  static int unmarshal_ip_to_hex(char** buf, char* dest, int len);
+  static int unmarshal_hierarchy(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+  static int unmarshal_finish_status(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+  static int unmarshal_cache_code(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+  static int unmarshal_entry_type(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+  static int unmarshal_cache_write_code(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+  static int unmarshal_client_protocol_stack(char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+
+  static int unmarshal_with_map(int64_t code, char *dest, int len, Ptr<LogFieldAliasMap> map, const char *msg = 0);
+
+  static int unmarshal_record(char **buf, char *dest, int len);
+
+  //
+  // our own strlen function that pads strings to even int64_t boundaries
+  // so that there are no alignment problems with the int values.
+  //
+  static int round_strlen(int len);
+  static int strlen(char const* str);
+
+public:
+  inkcoreapi static void marshal_int(char *dest, int64_t source);
+  inkcoreapi static void marshal_str(char *dest, const char *source, int padded_len);
+  inkcoreapi static void marshal_mem(char *dest, const char *source, int actual_len, int padded_len);
+  inkcoreapi static int marshal_ip(char *dest, sockaddr const* ip);
+
+  bool initialized;
+
+private:
+  // -- member functions that are not allowed --
+  LogAccess(const LogAccess & rhs);     // no copies
+  LogAccess & operator=(LogAccess & rhs);       // or assignment
+};
+
+inline int
+LogAccess::round_strlen(int len)
+{
+  return INK_ALIGN_DEFAULT(len);
+}
+
+/*-------------------------------------------------------------------------
+  LogAccess::strlen
+
+  Take trailing null and alignment padding into account.  This makes sure
+  that strings in the LogBuffer are laid out properly.
+  -------------------------------------------------------------------------*/
+
+inline int
+LogAccess::strlen(char const* str)
+{
+  if (str == NULL || str[0] == 0) {
+    return round_strlen(sizeof(DEFAULT_STR));
+  } else {
+    return (int) (round_strlen(((int)::strlen(str) + 1)));      // actual bytes for string
+  }
+}
+
+inline void
+LogAccess::marshal_int(char *dest, int64_t source)
+{
+  // TODO: This used to do htonl on the source. TS-1156
+  *((int64_t *)dest) = source;
+}
+
+/*-------------------------------------------------------------------------
+  resolve_logfield_string
+
+  This external function takes a format string and a LogAccess context and
+  resolves any known fields to return a new, resolved string.
+  -------------------------------------------------------------------------*/
+
+char *resolve_logfield_string(LogAccess * context, const char *format_str);
+
+#endif
diff --git a/proxy/logging/LogAccessHttp.cc b/proxy/logging/LogAccessHttp.cc
new file mode 100644
index 00000000..91534f22
--- /dev/null
+++ b/proxy/logging/LogAccessHttp.cc
@@ -0,0 +1,1291 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogAccessHttp.cc
+
+ This file defines the Http implementation of a LogAccess object, and
+ implements the accessor functions using information about an Http state
+ machine.
+
+
+ ***************************************************************************/
+#include "libts.h"
+#include "Error.h"
+#include "LogAccessHttp.h"
+#include "http/HttpSM.h"
+#include "MIME.h"
+#include "HTTP.h"
+#include "LogUtils.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "Log.h"
+
+/*-------------------------------------------------------------------------
+  LogAccessHttp
+
+  Initialize the private data members and assert that we got a valid state
+  machine pointer.
+  -------------------------------------------------------------------------*/
+
+LogAccessHttp::LogAccessHttp(HttpSM * sm)
+  : m_http_sm(sm), m_arena(), m_client_request(NULL), m_proxy_response(NULL), m_proxy_request(NULL),
+    m_server_response(NULL), m_cache_response(NULL), m_client_req_url_str(NULL), m_client_req_url_len(0),
+    m_client_req_url_canon_str(NULL), m_client_req_url_canon_len(0), m_client_req_unmapped_url_canon_str(NULL),
+    m_client_req_unmapped_url_canon_len(-1), m_client_req_unmapped_url_path_str(NULL),
+    m_client_req_unmapped_url_path_len(-1), m_client_req_unmapped_url_host_str(NULL),
+    m_client_req_unmapped_url_host_len(-1), m_client_req_url_path_str(NULL), m_client_req_url_path_len(0),
+    m_proxy_resp_content_type_str(NULL), m_proxy_resp_content_type_len(0)
+{
+  ink_assert(m_http_sm != NULL);
+}
+
+/*-------------------------------------------------------------------------
+  LogAccessHttp::~LogAccessHttp
+
+  Deallocate space for any strings allocated in the init routine.
+  -------------------------------------------------------------------------*/
+
+LogAccessHttp::~LogAccessHttp()
+{
+}
+
+/*-------------------------------------------------------------------------
+  LogAccessHttp::init
+
+  Build some strings that will come in handy for processing later, such as
+  URL.  This saves us from having to build the strings twice: once to
+  compute their length and a second time to actually marshal them.  We also
+  initialize local pointers to each of the 4 http headers.  However, there
+  is no guarantee that these headers will all be valid, so we must always
+  check the validity of these pointers before using them.
+  -------------------------------------------------------------------------*/
+
+#define HIDDEN_CONTENT_TYPE "@Content-Type"
+#define HIDDEN_CONTENT_TYPE_LEN 13
+
+void
+LogAccessHttp::init()
+{
+  HttpTransact::HeaderInfo * hdr = &(m_http_sm->t_state.hdr_info);
+
+  if (hdr->client_request.valid()) {
+    m_client_request = &(hdr->client_request);
+
+    // make a copy of the incoming url into the arena
+    const char *url_string_ref = m_client_request->url_string_get_ref(&m_client_req_url_len);
+    m_client_req_url_str = m_arena.str_alloc(m_client_req_url_len + 1);
+    memcpy(m_client_req_url_str, url_string_ref, m_client_req_url_len);
+    m_client_req_url_str[m_client_req_url_len] = '\0';
+
+    m_client_req_url_canon_str = LogUtils::escapify_url(&m_arena, m_client_req_url_str, m_client_req_url_len,
+                                                        &m_client_req_url_canon_len);
+    m_client_req_url_path_str = m_client_request->path_get(&m_client_req_url_path_len);
+  }
+
+  if (hdr->client_response.valid()) {
+    m_proxy_response = &(hdr->client_response);
+    MIMEField *field = m_proxy_response->field_find(MIME_FIELD_CONTENT_TYPE, MIME_LEN_CONTENT_TYPE);
+    if (field) {
+      m_proxy_resp_content_type_str = (char *) field->value_get(&m_proxy_resp_content_type_len);
+      //
+      // here is the assert
+      //
+      //assert (m_proxy_resp_content_type_str[0] >= 'A' && m_proxy_resp_content_type_str[0] <= 'z');
+      LogUtils::remove_content_type_attributes(m_proxy_resp_content_type_str, &m_proxy_resp_content_type_len);
+    } else {
+      // If Content-Type field is missing, check for @Content-Type
+      field = m_proxy_response->field_find(HIDDEN_CONTENT_TYPE, HIDDEN_CONTENT_TYPE_LEN);
+      if (field) {
+        m_proxy_resp_content_type_str = (char *) field->value_get(&m_proxy_resp_content_type_len);
+        LogUtils::remove_content_type_attributes(m_proxy_resp_content_type_str, &m_proxy_resp_content_type_len);
+      }
+    }
+  }
+  if (hdr->server_request.valid()) {
+    m_proxy_request = &(hdr->server_request);
+  }
+  if (hdr->server_response.valid()) {
+    m_server_response = &(hdr->server_response);
+  }
+  if (hdr->cache_response.valid()) {
+    m_cache_response = &(hdr->cache_response);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  The set routines ...
+
+  These routines are used by the WIPE_FIELD_VALUE filter to replace the original req url
+  strings with the WIPED req strings.
+  -------------------------------------------------------------------------*/
+
+void
+LogAccessHttp::set_client_req_url(char *buf, int len)
+{
+  if (buf) {
+    m_client_req_url_len = len;
+    ink_strlcpy(m_client_req_url_str, buf, m_client_req_url_len + 1);
+  }
+}
+
+void
+LogAccessHttp::set_client_req_url_canon(char *buf, int len)
+{
+  if (buf) {
+    m_client_req_url_canon_len = len;
+    ink_strlcpy(m_client_req_url_canon_str, buf, m_client_req_url_canon_len + 1);
+  }
+}
+
+void
+LogAccessHttp::set_client_req_unmapped_url_canon(char *buf, int len)
+{
+  if (buf) {
+    m_client_req_unmapped_url_canon_len = len;
+    ink_strlcpy(m_client_req_unmapped_url_canon_str, buf, m_client_req_unmapped_url_canon_len + 1);
+  }
+}
+
+void
+LogAccessHttp::set_client_req_unmapped_url_path(char *buf, int len)
+{
+  if (buf) {
+    m_client_req_unmapped_url_path_len = len;
+    ink_strlcpy(m_client_req_unmapped_url_path_str, buf, m_client_req_unmapped_url_path_len + 1);
+  }
+}
+
+void
+LogAccessHttp::set_client_req_unmapped_url_host(char *buf, int len)
+{
+  if (buf) {
+    m_client_req_unmapped_url_host_len = len;
+    ink_strlcpy(m_client_req_unmapped_url_host_str, buf, m_client_req_unmapped_url_host_len + 1);
+  }
+}
+
+void
+LogAccessHttp::set_client_req_url_path(char *buf, int len)
+{
+  //?? use m_client_req_unmapped_url_path_str for now..may need to enhance later..
+  if (buf) {
+    m_client_req_url_path_len = len;
+    ink_strlcpy(m_client_req_unmapped_url_path_str, buf, m_client_req_url_path_len + 1);
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  The marshalling routines ...
+
+  We know that m_http_sm is a valid pointer (we assert so in the ctor), but
+  we still need to check the other header pointers before using them in the
+  routines.
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+int
+LogAccessHttp::marshal_plugin_identity_id(char *buf)
+{
+  if (buf) marshal_int(buf, m_http_sm->plugin_id);
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_plugin_identity_tag(char *buf)
+{
+  int len = INK_MIN_ALIGN;
+  char const* tag = m_http_sm->plugin_tag;
+
+  if (!tag) tag = "*";
+  else len = LogAccess::strlen(tag);
+
+  if (buf) marshal_str(buf, tag, len);
+
+  return len;
+}
+
+int
+LogAccessHttp::marshal_client_host_ip(char *buf)
+{
+  return marshal_ip(buf, &m_http_sm->t_state.client_info.addr.sa);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_host_port(char *buf)
+{
+  if (buf) {
+    uint16_t port = ntohs(m_http_sm->t_state.client_info.addr.port());
+    marshal_int(buf, port);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  user authenticated to the proxy (RFC931)
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_auth_user_name(char *buf)
+{
+  char *str = NULL;
+  int len = INK_MIN_ALIGN;
+
+  // Jira TS-40:
+  // NOTE: Authentication related code and modules were removed/disabled.
+  //       Uncomment code path below when re-added/enabled.
+  /*if (m_http_sm->t_state.auth_params.user_name) {
+    str = m_http_sm->t_state.auth_params.user_name;
+    len = LogAccess::strlen(str);
+    } */
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+
+/*-------------------------------------------------------------------------
+  Private utility function to validate m_client_req_unmapped_url_canon_str &
+  m_client_req_unmapped_url_canon_len fields.
+  -------------------------------------------------------------------------*/
+
+void
+LogAccessHttp::validate_unmapped_url(void)
+{
+  if (m_client_req_unmapped_url_canon_len < 0) {
+    if (m_http_sm->t_state.pristine_url.valid()) {
+      int unmapped_url_len;
+      char *unmapped_url = m_http_sm->t_state.pristine_url.string_get_ref(&unmapped_url_len);
+
+      if (unmapped_url && unmapped_url[0] != 0) {
+        m_client_req_unmapped_url_canon_str =
+        LogUtils::escapify_url(&m_arena, unmapped_url, unmapped_url_len, &m_client_req_unmapped_url_canon_len);
+      }
+    } else {
+      m_client_req_unmapped_url_canon_len = 0;
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  Private utility function to validate m_client_req_unmapped_url_path_str &
+  m_client_req_unmapped_url_path_len fields.
+  -------------------------------------------------------------------------*/
+
+void
+LogAccessHttp::validate_unmapped_url_path(void)
+{
+  int len;
+  char *c;
+
+  if (m_client_req_unmapped_url_path_len < 0 && m_client_req_unmapped_url_host_len < 0) {
+    // Use unmapped canonical URL as default
+    m_client_req_unmapped_url_path_str = m_client_req_unmapped_url_canon_str;
+    m_client_req_unmapped_url_path_len = m_client_req_unmapped_url_canon_len;
+
+    if (m_client_req_unmapped_url_path_len >= 6) {      // xxx:// - minimum schema size
+      c = (char *) memchr((void *) m_client_req_unmapped_url_path_str, ':', m_client_req_unmapped_url_path_len - 1);
+      if (c && (len = (int) (c - m_client_req_unmapped_url_path_str)) <= 5) {   // 5 - max schema size
+        if (len + 2 <= m_client_req_unmapped_url_canon_len && c[1] == '/' && c[2] == '/') {
+          len += 3;             // Skip "://"
+          m_client_req_unmapped_url_host_str = &m_client_req_unmapped_url_canon_str[len];
+          m_client_req_unmapped_url_host_len = m_client_req_unmapped_url_path_len - len;
+          // Attempt to find first '/' in the path
+          if (m_client_req_unmapped_url_host_len > 0 &&
+              (c =
+               (char *) memchr((void *) m_client_req_unmapped_url_host_str, '/',
+                               m_client_req_unmapped_url_path_len)) != 0) {
+            m_client_req_unmapped_url_host_len = (int) (c - m_client_req_unmapped_url_host_str);
+            m_client_req_unmapped_url_path_str = &m_client_req_unmapped_url_host_str[m_client_req_unmapped_url_host_len];
+            m_client_req_unmapped_url_path_len = m_client_req_unmapped_url_path_len - len - m_client_req_unmapped_url_host_len;
+          }
+        }
+      }
+    }
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  This is the method, url, and version all rolled into one.  Use the
+  respective marshalling routines to do the job.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_text(char *buf)
+{
+  int len = marshal_client_req_http_method(NULL) + marshal_client_req_url(NULL) + marshal_client_req_http_version(NULL);
+
+  if (buf) {
+    int offset = 0;
+    offset += marshal_client_req_http_method(&buf[offset]);
+    offset += marshal_client_req_url(&buf[offset]);
+    offset += marshal_client_req_http_version(&buf[offset]);
+    len = offset;
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_http_method(char *buf)
+{
+  char *str = NULL;
+  int alen = 0;
+  int plen = INK_MIN_ALIGN;
+
+  if (m_client_request) {
+    str = (char *) m_client_request->method_get(&alen);
+
+    // calculate the the padded length only if the actual length
+    // is not zero. We don't want the padded length to be zero
+    // because marshal_mem should write the DEFAULT_STR to the
+    // buffer if str is nil, and we need room for this.
+    //
+    if (alen) {
+      plen = round_strlen(alen + 1);    // +1 for trailing 0
+    }
+  }
+
+  if (buf)
+    marshal_mem(buf, str, alen, plen);
+  return plen;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_url(char *buf)
+{
+  int len = round_strlen(m_client_req_url_len + 1);     // +1 for trailing 0
+
+  if (buf) {
+    marshal_mem(buf, m_client_req_url_str, m_client_req_url_len, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_url_canon(char *buf)
+{
+  int len = round_strlen(m_client_req_url_canon_len + 1);
+
+  if (buf) {
+    marshal_mem(buf, m_client_req_url_canon_str, m_client_req_url_canon_len, len);
+  }
+  return len;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_unmapped_url_canon(char *buf)
+{
+  int len = INK_MIN_ALIGN;
+
+  validate_unmapped_url();
+  if (0 == m_client_req_unmapped_url_canon_len) {
+    // If the unmapped URL isn't populated, we'll fall back to the original
+    // client URL. This helps for example server intercepts to continue to
+    // log the requests, even when there is no remap rule for it.
+    len = marshal_client_req_url_canon(buf);
+  } else {
+    len = round_strlen(m_client_req_unmapped_url_canon_len + 1);      // +1 for eos
+    if (buf) {
+      marshal_mem(buf, m_client_req_unmapped_url_canon_str, m_client_req_unmapped_url_canon_len, len);
+    }
+  }
+
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_unmapped_url_path(char *buf)
+{
+  int len = INK_MIN_ALIGN;
+
+  validate_unmapped_url();
+  validate_unmapped_url_path();
+
+  if (0 == m_client_req_unmapped_url_path_len) {
+    len = marshal_client_req_url_path(buf);
+  } else {
+    len = round_strlen(m_client_req_unmapped_url_path_len + 1);   // +1 for eos
+    if (buf) {
+      marshal_mem(buf, m_client_req_unmapped_url_path_str, m_client_req_unmapped_url_path_len, len);
+    }
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_unmapped_url_host(char *buf)
+{
+  int len = INK_MIN_ALIGN;
+
+  validate_unmapped_url();
+  validate_unmapped_url_path();
+
+  len = round_strlen(m_client_req_unmapped_url_host_len + 1);      // +1 for eos
+  if (buf) {
+    marshal_mem(buf, m_client_req_unmapped_url_host_str, m_client_req_unmapped_url_host_len, len);
+  }
+  return len;
+}
+
+int
+LogAccessHttp::marshal_client_req_url_path(char *buf)
+{
+  int len = round_strlen(m_client_req_url_path_len + 1);
+  if (buf) {
+    marshal_mem(buf, m_client_req_url_path_str, m_client_req_url_path_len, len);
+  }
+  return len;
+}
+
+int
+LogAccessHttp::marshal_client_req_url_scheme(char *buf)
+{
+  char *str = NULL;
+  int alen = 0;
+  int plen = INK_MIN_ALIGN;
+
+  str = (char *) m_client_request->scheme_get(&alen);
+
+  // calculate the the padded length only if the actual length
+  // is not zero. We don't want the padded length to be zero
+  // because marshal_mem should write the DEFAULT_STR to the
+  // buffer if str is nil, and we need room for this.
+  //
+  if (alen) {
+    plen = round_strlen(alen + 1);    // +1 for trailing 0
+  }
+
+  if (buf) {
+    marshal_mem(buf, str, alen, plen);
+  }
+
+  return plen;
+}
+
+/*-------------------------------------------------------------------------
+  For this one we're going to marshal two INTs, one the first representing
+  the major number and the second representing the minor.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_http_version(char *buf)
+{
+  if (buf) {
+    int64_t major = 0;
+    int64_t minor = 0;
+    if (m_client_request) {
+      HTTPVersion versionObject = m_client_request->version_get();
+      major = HTTP_MAJOR(versionObject.m_version);
+      minor = HTTP_MINOR(versionObject.m_version);
+    }
+    marshal_int(buf, major);
+    marshal_int((buf + INK_MIN_ALIGN), minor);
+  }
+  return (2 * INK_MIN_ALIGN);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_header_len(char *buf)
+{
+  if (buf) {
+    int64_t len = 0;
+    if (m_client_request) {
+      len = m_client_request->length_get();
+    }
+    marshal_int(buf, len);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_client_req_body_len(char *buf)
+{
+  if (buf) {
+    int64_t len = 0;
+    if (m_client_request) {
+      len = m_http_sm->client_request_body_bytes;
+    }
+    marshal_int(buf, len);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_client_finish_status_code(char *buf)
+{
+  if (buf) {
+    int code = LOG_FINISH_FIN;
+    HttpTransact::AbortState_t cl_abort_state = m_http_sm->t_state.client_info.abort;
+    if (cl_abort_state == HttpTransact::ABORTED) {
+
+      // Check to see if the abort is due to a timeout
+      if (m_http_sm->t_state.client_info.state == HttpTransact::ACTIVE_TIMEOUT ||
+          m_http_sm->t_state.client_info.state == HttpTransact::INACTIVE_TIMEOUT) {
+        code = LOG_FINISH_TIMEOUT;
+      } else {
+        code = LOG_FINISH_INTR;
+      }
+    }
+    marshal_int(buf, code);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_resp_content_type(char *buf)
+{
+  int len = round_strlen(m_proxy_resp_content_type_len + 1);
+  if (buf) {
+    marshal_mem(buf, m_proxy_resp_content_type_str, m_proxy_resp_content_type_len, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  Squid returns the content-length + header length as the total length.
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_resp_squid_len(char *buf)
+{
+  if (buf) {
+    int64_t val = m_http_sm->client_response_hdr_bytes + m_http_sm->client_response_body_bytes;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_resp_content_len(char *buf)
+{
+  if (buf) {
+    int64_t val = m_http_sm->client_response_body_bytes;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_resp_status_code(char *buf)
+{
+  if (buf) {
+    HTTPStatus status;
+    if (m_proxy_response && m_client_request) {
+      if (m_client_request->version_get() >= HTTPVersion(1, 0)) {
+        status = m_proxy_response->status_get();
+      }
+      // INKqa10788
+      // For bad/incomplete request, the request version may be 0.9.
+      // However, we can still log the status code if there is one.
+      else if (m_proxy_response->valid()) {
+        status = m_proxy_response->status_get();
+      } else {
+        status = HTTP_STATUS_OK;
+      }
+    } else {
+      status = HTTP_STATUS_NONE;
+    }
+    marshal_int(buf, (int64_t) status);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_resp_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = m_http_sm->client_response_hdr_bytes;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_proxy_finish_status_code(char *buf)
+{
+  /* FIXME: Should there be no server transaction code if
+     the result comes out of the cache.  Right now we default
+     to FIN */
+  if (buf) {
+    int code = LOG_FINISH_FIN;
+    if (m_http_sm->t_state.current.server) {
+      switch (m_http_sm->t_state.current.server->state) {
+      case HttpTransact::ACTIVE_TIMEOUT:
+      case HttpTransact::INACTIVE_TIMEOUT:
+        code = LOG_FINISH_TIMEOUT;
+        break;
+      case HttpTransact::CONNECTION_ERROR:
+        code = LOG_FINISH_INTR;
+        break;
+      default:
+        if (m_http_sm->t_state.current.server->abort == HttpTransact::ABORTED) {
+          code = LOG_FINISH_INTR;
+        }
+        break;
+      }
+    }
+
+    marshal_int(buf, code);
+  }
+
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_cache_result_code(char *buf)
+{
+  if (buf) {
+    SquidLogCode code = m_http_sm->t_state.squid_codes.log_code;
+    marshal_int(buf, (int64_t) code);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_req_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 0;
+    if (m_proxy_request) {
+      val = m_proxy_request->length_get();
+    }
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_req_body_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 0;
+    if (m_proxy_request) {
+      val = m_http_sm->server_request_body_bytes;
+    }
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_proxy_req_server_name(char *buf)
+{
+  char *str = NULL;
+  int len = INK_MIN_ALIGN;
+
+  if (m_http_sm->t_state.current.server) {
+    str = m_http_sm->t_state.current.server->name;
+    len = LogAccess::strlen(str);
+  }
+
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+// TODO: Change marshalling code to support both IPv4 and IPv6 addresses.
+int
+LogAccessHttp::marshal_proxy_req_server_ip(char *buf)
+{
+  return marshal_ip(buf, m_http_sm->t_state.current.server != NULL ? &m_http_sm->t_state.current.server->addr.sa : 0);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_proxy_hierarchy_route(char *buf)
+{
+  if (buf) {
+    SquidHierarchyCode code = m_http_sm->t_state.squid_codes.hier_code;
+    marshal_int(buf, (int64_t) code);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+// TODO: Change marshalling code to support both IPv4 and IPv6 addresses.
+int
+LogAccessHttp::marshal_server_host_ip(char *buf)
+{
+  sockaddr const* ip = 0;
+  ip = &m_http_sm->t_state.server_info.addr.sa;
+  if (! ats_is_ip(ip)) {
+    if (m_http_sm->t_state.current.server) {
+      ip = &m_http_sm->t_state.current.server->addr.sa;
+      if (! ats_is_ip(ip)) ip = 0;
+    } else {
+      ip = 0;
+    }
+  }
+  return marshal_ip(buf, ip);
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_server_host_name(char *buf)
+{
+  char const* str = NULL;
+  int padded_len = INK_MIN_ALIGN;
+  int actual_len = 0;
+
+  if (m_client_request) {
+    str = m_client_request->host_get(&actual_len);
+
+    if (str)
+      padded_len = round_strlen(actual_len + 1);        // +1 for trailing 0
+  }
+  if (buf) {
+    marshal_mem(buf, str, actual_len, padded_len);
+  }
+  return padded_len;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_server_resp_status_code(char *buf)
+{
+  if (buf) {
+    HTTPStatus status;
+    if (m_server_response) {
+      status = m_server_response->status_get();
+    } else {
+      status = HTTP_STATUS_NONE;
+    }
+    marshal_int(buf, (int64_t) status);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_server_resp_content_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 0;
+    if (m_server_response) {
+      val = m_http_sm->server_response_body_bytes;
+    }
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_server_resp_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 0;
+    if (m_server_response) {
+      val = m_server_response->length_get();
+    }
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_server_resp_http_version(char *buf)
+{
+  if (buf) {
+    int64_t major = 0;
+    int64_t minor = 0;
+    if (m_server_response) {
+      major = HTTP_MAJOR(m_server_response->version_get().m_version);
+      minor = HTTP_MINOR(m_server_response->version_get().m_version);
+    }
+    marshal_int(buf, major);
+    marshal_int((buf + INK_MIN_ALIGN), minor);
+  }
+  return (2 * INK_MIN_ALIGN);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_cache_resp_status_code(char *buf)
+{
+  if (buf) {
+    HTTPStatus status;
+    if (m_cache_response) {
+      status = m_cache_response->status_get();
+    } else {
+      status = HTTP_STATUS_NONE;
+    }
+    marshal_int(buf, (int64_t) status);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_cache_resp_content_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 0;
+    if (m_cache_response) {
+      val = m_http_sm->cache_response_body_bytes;
+    }
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_cache_resp_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 0;
+    if (m_cache_response) {
+      val = m_http_sm->cache_response_hdr_bytes;
+    }
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_cache_resp_http_version(char *buf)
+{
+  if (buf) {
+    int64_t major = 0;
+    int64_t minor = 0;
+    if (m_cache_response) {
+      major = HTTP_MAJOR(m_cache_response->version_get().m_version);
+      minor = HTTP_MINOR(m_cache_response->version_get().m_version);
+    }
+    marshal_int(buf, major);
+    marshal_int((buf + INK_MIN_ALIGN), minor);
+  }
+  return (2 * INK_MIN_ALIGN);
+}
+
+
+int
+LogAccessHttp::marshal_client_retry_after_time(char *buf)
+{
+  if (buf) {
+    int64_t crat = m_http_sm->t_state.congestion_control_crat;
+    marshal_int(buf, crat);
+  }
+  return INK_MIN_ALIGN;
+}
+
+static LogCacheWriteCodeType
+convert_cache_write_code(HttpTransact::CacheWriteStatus_t t)
+{
+
+  LogCacheWriteCodeType code;
+  switch (t) {
+  case HttpTransact::NO_CACHE_WRITE:
+    code = LOG_CACHE_WRITE_NONE;
+    break;
+  case HttpTransact::CACHE_WRITE_LOCK_MISS:
+    code = LOG_CACHE_WRITE_LOCK_MISSED;
+    break;
+  case HttpTransact::CACHE_WRITE_IN_PROGRESS:
+    // Hack - the HttpSM doesn't record
+    //   cache write aborts currently so
+    //   if it's not complete declare it
+    //   aborted
+    code = LOG_CACHE_WRITE_LOCK_ABORTED;
+    break;
+  case HttpTransact::CACHE_WRITE_ERROR:
+    code = LOG_CACHE_WRITE_ERROR;
+    break;
+  case HttpTransact::CACHE_WRITE_COMPLETE:
+    code = LOG_CACHE_WRITE_COMPLETE;
+    break;
+  default:
+    ink_assert(!"bad cache write code");
+    code = LOG_CACHE_WRITE_NONE;
+    break;
+  }
+
+  return code;
+}
+
+
+int
+LogAccessHttp::marshal_cache_write_code(char *buf)
+{
+
+  if (buf) {
+    int code = convert_cache_write_code(m_http_sm->t_state.cache_info.write_status);
+    marshal_int(buf, code);
+  }
+
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_cache_write_transform_code(char *buf)
+{
+
+  if (buf) {
+    int code = convert_cache_write_code(m_http_sm->t_state.cache_info.transform_write_status);
+    marshal_int(buf, code);
+  }
+
+  return INK_MIN_ALIGN;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_transfer_time_ms(char *buf)
+{
+  if (buf) {
+    ink_hrtime elapsed = m_http_sm->milestones.sm_finish - m_http_sm->milestones.sm_start;
+    elapsed /= HRTIME_MSECOND;
+    int64_t val = (int64_t) elapsed;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessHttp::marshal_transfer_time_s(char *buf)
+{
+  if (buf) {
+    ink_hrtime elapsed = m_http_sm->milestones.sm_finish - m_http_sm->milestones.sm_start;
+    elapsed /= HRTIME_SECOND;
+    int64_t val = (int64_t) elapsed;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  Figure out the size of the object *on origin*. This is somewhat tricky
+  since there are many variations on how this can be calculated.
+  -------------------------------------------------------------------------*/
+int
+LogAccessHttp::marshal_file_size(char *buf)
+{
+  if (buf) {
+    MIMEField *fld;
+    HTTPHdr *hdr = m_server_response ? m_server_response : m_cache_response;
+
+    if (hdr && (fld = hdr->field_find(MIME_FIELD_CONTENT_RANGE, MIME_LEN_CONTENT_RANGE))) {
+      int len;
+      char *str = (char*)fld->value_get(&len);
+      char *pos = (char*)memchr(str, '/', len); // Find the /
+
+      // If the size is not /* (which means unknown) use it as the file_size.
+      if (pos && !memchr(pos+1, '*', len - (pos + 1 - str))) {
+        marshal_int(buf, ink_atoi64(pos+1, len - (pos + 1 - str)));
+      }
+    } else {
+      // This is semi-broken when we serveq zero length objects. See TS-2213
+      if (m_http_sm->server_response_body_bytes > 0)
+        marshal_int(buf, m_http_sm->server_response_body_bytes);
+      else if (m_http_sm->cache_response_body_bytes > 0)
+        marshal_int(buf, m_http_sm->cache_response_body_bytes);
+    }
+  }
+  // Else, we don't set the value at all (so, -)
+
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessHttp::marshal_http_header_field(LogField::Container container, char *field, char *buf)
+{
+  char *str = NULL;
+  int padded_len = INK_MIN_ALIGN;
+  int actual_len = 0;
+  bool valid_field = false;
+  HTTPHdr *header;
+
+  switch (container) {
+  case LogField::CQH:
+    header = m_client_request;
+    break;
+
+  case LogField::PSH:
+    header = m_proxy_response;
+    break;
+
+  case LogField::PQH:
+    header = m_proxy_request;
+    break;
+
+  case LogField::SSH:
+    header = m_server_response;
+    break;
+
+  case LogField::CSSH:
+    header = m_cache_response;
+    break;
+
+  default:
+    header = NULL;
+    break;
+  }
+
+  if (header) {
+    MIMEField *fld = header->field_find(field, (int)::strlen(field));
+    if (fld) {
+      valid_field = true;
+
+      // Loop over dups, marshalling each one into the buffer and
+      // summing up their length
+      //
+      int running_len = 0;
+      while (fld) {
+        str = (char *) fld->value_get(&actual_len);
+        if (buf) {
+          memcpy(buf, str, actual_len);
+          buf += actual_len;
+        }
+        running_len += actual_len;
+        fld = fld->m_next_dup;
+
+        // Dups need to be comma separated.  So if there's another
+        // dup, then add a comma and a space ...
+        //
+        if (fld != NULL) {
+          if (buf) {
+            memcpy(buf, ", ", 2);
+            buf += 2;
+          }
+          running_len += 2;
+        }
+      }
+
+      // Done with all dups.  Ensure that the string is terminated
+      // and that the running_len is padded.
+      //
+      if (buf) {
+        *buf = '\0';
+        buf++;
+      }
+      running_len += 1;
+      padded_len = round_strlen(running_len);
+
+      // Note: marshal_string fills the padding to
+      //  prevent purify UMRs so we do it here too
+      //  since we always pass the unpadded length on
+      //  our calls to marshal string
+#ifdef DEBUG
+      if (buf) {
+        int pad_len = padded_len - running_len;
+        for (int i = 0; i < pad_len; i++) {
+          *buf = '$';
+          buf++;
+        }
+      }
+#endif
+    }
+  }
+
+  if (valid_field == false) {
+    padded_len = INK_MIN_ALIGN;
+    if (buf) {
+      marshal_str(buf, NULL, padded_len);
+    }
+  }
+
+  return (padded_len);
+}
+
+int
+LogAccessHttp::marshal_http_header_field_escapify(LogField::Container container, char *field, char *buf)
+{
+  char *str = NULL, *new_str = NULL;
+  int padded_len = INK_MIN_ALIGN;
+  int actual_len = 0, new_len = 0;
+  bool valid_field = false;
+  HTTPHdr *header;
+
+  switch (container) {
+  case LogField::ECQH:
+    header = m_client_request;
+    break;
+
+  case LogField::EPSH:
+    header = m_proxy_response;
+    break;
+
+  case LogField::EPQH:
+    header = m_proxy_request;
+    break;
+
+  case LogField::ESSH:
+    header = m_server_response;
+    break;
+
+  case LogField::ECSSH:
+    header = m_cache_response;
+    break;
+
+  default:
+    header = NULL;
+    break;
+  }
+
+  if (header) {
+    MIMEField *fld = header->field_find(field, (int)::strlen(field));
+    if (fld) {
+      valid_field = true;
+
+      // Loop over dups, marshalling each one into the buffer and
+      // summing up their length
+      //
+      int running_len = 0;
+      while (fld) {
+        str = (char *) fld->value_get(&actual_len);
+        new_str = LogUtils::escapify_url(&m_arena, str, actual_len, &new_len);
+        if (buf) {
+          memcpy(buf, new_str, new_len);
+          buf += new_len;
+        }
+        running_len += new_len;
+        fld = fld->m_next_dup;
+
+        // Dups need to be comma separated.  So if there's another
+        // dup, then add a comma and a space ...
+        //
+        if (fld != NULL) {
+          if (buf) {
+            memcpy(buf, ", ", 2);
+            buf += 2;
+          }
+          running_len += 2;
+        }
+      }
+
+      // Done with all dups.  Ensure that the string is terminated
+      // and that the running_len is padded.
+      //
+      if (buf) {
+        *buf = '\0';
+        buf++;
+      }
+      running_len += 1;
+      padded_len = round_strlen(running_len);
+
+      // Note: marshal_string fills the padding to
+      //  prevent purify UMRs so we do it here too
+      //  since we always pass the unpadded length on
+      //  our calls to marshal string
+#ifdef DEBUG
+      if (buf) {
+        int pad_len = padded_len - running_len;
+        for (int i = 0; i < pad_len; i++) {
+          *buf = '$';
+          buf++;
+        }
+      }
+#endif
+    }
+  }
+
+  if (valid_field == false) {
+    padded_len = INK_MIN_ALIGN;
+    if (buf) {
+      marshal_str(buf, NULL, padded_len);
+    }
+  }
+
+  return (padded_len);
+}
diff --git a/proxy/logging/LogAccessHttp.h b/proxy/logging/LogAccessHttp.h
new file mode 100644
index 00000000..51ee9e38
--- /dev/null
+++ b/proxy/logging/LogAccessHttp.h
@@ -0,0 +1,181 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_ACCESS_HTTP_H
+#define LOG_ACCESS_HTTP_H
+
+#include "Arena.h"
+#include "HTTP.h"
+#include "LogAccess.h"
+
+class HttpSM;
+class URL;
+
+/*-------------------------------------------------------------------------
+  LogAccessHttp
+
+  This class extends the logging system interface as implemented by the
+  HttpStateMachineGet class.
+  -------------------------------------------------------------------------*/
+
+class LogAccessHttp:public LogAccess
+{
+public:
+  LogAccessHttp(HttpSM * sm);
+  virtual ~ LogAccessHttp();
+
+  void init();
+  LogEntryType entry_type()
+  {
+    return LOG_ENTRY_HTTP;
+  }
+
+  //
+  // client -> proxy fields
+  //
+  virtual int marshal_client_host_ip(char *);   // STR
+  virtual int marshal_client_host_port(char *); // INT
+  virtual int marshal_client_auth_user_name(char *);    // STR
+  virtual int marshal_client_req_text(char *);  // STR
+  virtual int marshal_client_req_http_method(char *);   // INT
+  virtual int marshal_client_req_url(char *);   // STR
+  virtual int marshal_client_req_url_canon(char *);     // STR
+  virtual int marshal_client_req_unmapped_url_canon(char *);    // STR
+  virtual int marshal_client_req_unmapped_url_path(char *);     // STR
+  virtual int marshal_client_req_unmapped_url_host(char *);     // STR
+  virtual int marshal_client_req_url_path(char *);      // STR
+  virtual int marshal_client_req_url_scheme(char *);    // STR
+  virtual int marshal_client_req_http_version(char *);  // INT
+  virtual int marshal_client_req_header_len(char *);    // INT
+  virtual int marshal_client_req_body_len(char *);      // INT
+  virtual int marshal_client_finish_status_code(char *);        // INT
+
+  //
+  // proxy -> client fields
+  //
+  virtual int marshal_proxy_resp_content_type(char *);  // STR
+  virtual int marshal_proxy_resp_squid_len(char *);     // INT
+  virtual int marshal_proxy_resp_content_len(char *);   // INT
+  virtual int marshal_proxy_resp_status_code(char *);   // INT
+  virtual int marshal_proxy_resp_header_len(char *);    // INT
+  virtual int marshal_proxy_finish_status_code(char *); // INT
+  virtual int marshal_cache_result_code(char *);        // INT
+
+  //
+  // proxy -> server fields
+  //
+  virtual int marshal_proxy_req_header_len(char *);     // INT
+  virtual int marshal_proxy_req_body_len(char *);       // INT
+  virtual int marshal_proxy_req_server_name(char *);    // STR
+  virtual int marshal_proxy_req_server_ip(char *);      // INT
+  virtual int marshal_proxy_hierarchy_route(char *);    // INT
+
+  //
+  // server -> proxy fields
+  //
+  virtual int marshal_server_host_ip(char *);   // INT
+  virtual int marshal_server_host_name(char *); // STR
+  virtual int marshal_server_resp_status_code(char *);  // INT
+  virtual int marshal_server_resp_content_len(char *);  // INT
+  virtual int marshal_server_resp_header_len(char *);   // INT
+  virtual int marshal_server_resp_http_version(char *); // INT
+
+  //
+  // cache -> client fields
+  //
+  virtual int marshal_cache_resp_status_code(char *);  // INT
+  virtual int marshal_cache_resp_content_len(char *);  // INT
+  virtual int marshal_cache_resp_header_len(char *);   // INT
+  virtual int marshal_cache_resp_http_version(char *); // INT
+
+  //
+  // congestion control client_retry_after_time
+  //
+  virtual int marshal_client_retry_after_time(char *);  // INT
+
+  //
+  // cache write fields
+  //
+  virtual int marshal_cache_write_code(char *); // INT
+  virtual int marshal_cache_write_transform_code(char *);       // INT
+
+  //
+  // other fields
+  //
+  virtual int marshal_transfer_time_ms(char *); // INT
+  virtual int marshal_transfer_time_s(char *);  // INT
+  virtual int marshal_file_size(char *); // INT
+  virtual int marshal_plugin_identity_id(char *);    // INT
+  virtual int marshal_plugin_identity_tag(char *);    // STR
+
+  //
+  // named fields from within a http header
+  //
+  virtual int marshal_http_header_field(LogField::Container container, char *field, char *buf);
+  virtual int marshal_http_header_field_escapify(LogField::Container container, char *field, char *buf);
+
+  virtual void set_client_req_url(char *, int);        // STR
+  virtual void set_client_req_url_canon(char *, int);  // STR
+  virtual void set_client_req_unmapped_url_canon(char *, int); // STR
+  virtual void set_client_req_unmapped_url_path(char *, int);  // STR
+  virtual void set_client_req_unmapped_url_host(char *, int);  // STR
+  virtual void set_client_req_url_path(char *, int);   // STR
+
+private:
+  HttpSM * m_http_sm;
+
+  Arena m_arena;
+  //  URL *m_url;
+
+  HTTPHdr *m_client_request;
+  HTTPHdr *m_proxy_response;
+  HTTPHdr *m_proxy_request;
+  HTTPHdr *m_server_response;
+  HTTPHdr *m_cache_response;
+
+  char *m_client_req_url_str;
+  int m_client_req_url_len;
+  char *m_client_req_url_canon_str;
+  int m_client_req_url_canon_len;
+  char *m_client_req_unmapped_url_canon_str;
+  int m_client_req_unmapped_url_canon_len;
+  char *m_client_req_unmapped_url_path_str;
+  int m_client_req_unmapped_url_path_len;
+  char *m_client_req_unmapped_url_host_str;
+  int m_client_req_unmapped_url_host_len;
+  char const*m_client_req_url_path_str;
+  int m_client_req_url_path_len;
+  char *m_proxy_resp_content_type_str;
+  int m_proxy_resp_content_type_len;
+
+  void validate_unmapped_url(void);
+  void validate_unmapped_url_path(void);
+
+  // -- member functions that are not allowed --
+  LogAccessHttp(const LogAccessHttp & rhs);
+  LogAccessHttp & operator=(LogAccessHttp & rhs);
+};
+
+#endif
diff --git a/proxy/logging/LogAccessICP.cc b/proxy/logging/LogAccessICP.cc
new file mode 100644
index 00000000..5f9bb156
--- /dev/null
+++ b/proxy/logging/LogAccessICP.cc
@@ -0,0 +1,293 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogAccessICP.cc
+
+ This file implements the LogAccessICP class, which specializes the
+ LogAccess class for ICP logging.  Some of the field requests are not
+ relevant to ICP logging, and for those we simply return a default value
+ (NULL strings, 0 values).
+
+
+ ***************************************************************************/
+#include "libts.h"
+#include "Error.h"
+#include "HTTP.h"
+#include "ICP.h"
+#include "ICPlog.h"
+#include "LogAccessICP.h"
+#include "LogUtils.h"
+
+/*-------------------------------------------------------------------------
+  LogAccessICP
+  -------------------------------------------------------------------------*/
+
+LogAccessICP::LogAccessICP(ICPlog * icp_log)
+  : m_icp_log(icp_log)
+{
+  ink_assert(m_icp_log != NULL);
+}
+
+/*-------------------------------------------------------------------------
+  LogAccessICP::~LogAccessICP
+  -------------------------------------------------------------------------*/
+
+LogAccessICP::~LogAccessICP()
+{
+}
+
+/*-------------------------------------------------------------------------
+  The marshalling routines ...
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_host_ip(char *buf)
+{
+  return marshal_ip(buf, m_icp_log->GetClientIP());
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_host_port(char *buf)
+{
+  if (buf) {
+    uint16_t port = ntohs(m_icp_log->GetClientPort());
+    marshal_int(buf, port);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_auth_user_name(char *buf)
+{
+  char *str = (char *) m_icp_log->GetIdent();
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_req_text(char *buf)
+{
+  int len = marshal_client_req_http_method(NULL) + marshal_client_req_url(NULL) + marshal_client_req_http_version(NULL);
+
+  if (buf) {
+    int offset = 0;
+    offset += marshal_client_req_http_method(&buf[offset]);
+    offset += marshal_client_req_url(&buf[offset]);
+    offset += marshal_client_req_http_version(&buf[offset]);
+    len = offset;
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_req_http_method(char *buf)
+{
+  char *str = (char *) m_icp_log->GetMethod();
+  int len = LogAccess::strlen(str);
+
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_req_url(char *buf)
+{
+  char *str = (char *) m_icp_log->GetURI();
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_client_req_url_canon(char *buf)
+{
+  int escapified_len;
+  Arena arena;
+
+  // FIXME: need to ensure that m_icp_log->GetURI() is NUL-terminated
+  //
+  char *uri_str = (char *) m_icp_log->GetURI();
+  int uri_len =::strlen(uri_str);
+  char *str = LogUtils::escapify_url(&arena, uri_str, uri_len,
+                                     &escapified_len);
+
+  int len = round_strlen(escapified_len + 1);   // the padded len
+  if (buf)
+    marshal_str(buf, str, len);
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_proxy_resp_content_type(char *buf)
+{
+  // FIXME: need to ensure that m_icp_log->GetContentType() is NUL-terminated
+  //
+  char *ct_str = (char *) m_icp_log->GetContentType();
+  int ct_len = ::strlen(ct_str);
+
+  // FIXME: need to be sure remove_content_type_attributecan mutate ct_str
+  //
+  LogUtils::remove_content_type_attributes(ct_str, &ct_len);
+  int len = LogAccess::strlen(ct_str);
+  if (buf)
+    marshal_str(buf, ct_str, len);
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_proxy_resp_squid_len(char *buf)
+{
+  if (buf) {
+    int64_t val = m_icp_log->GetSize();
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_proxy_resp_content_len(char *buf)
+{
+  if (buf) {
+    int64_t val = m_icp_log->GetSize();
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_proxy_resp_status_code(char *buf)
+{
+  if (buf) {
+    int64_t status = 0;         // '000' for ICP
+    marshal_int(buf, status);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_cache_result_code(char *buf)
+{
+  if (buf) {
+    SquidLogCode code = m_icp_log->GetAction();
+    marshal_int(buf, (int64_t) code);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_proxy_hierarchy_route(char *buf)
+{
+  if (buf) {
+    SquidHierarchyCode code = m_icp_log->GetHierarchy();
+    marshal_int(buf, (int64_t) code);
+  }
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_server_host_name(char *buf)
+{
+  char *str = (char *) m_icp_log->GetFromHost();
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessICP::marshal_transfer_time_ms(char *buf)
+{
+  if (buf) {
+    ink_hrtime elapsed = m_icp_log->GetElapsedTime();
+    elapsed /= HRTIME_MSECOND;
+    int64_t val = (int64_t) elapsed;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
+
+int
+LogAccessICP::marshal_transfer_time_s(char *buf)
+{
+  if (buf) {
+    ink_hrtime elapsed = m_icp_log->GetElapsedTime();
+    elapsed /= HRTIME_SECOND;
+    int64_t val = (int64_t) elapsed;
+    marshal_int(buf, val);
+  }
+  return INK_MIN_ALIGN;
+}
diff --git a/proxy/logging/LogAccessICP.h b/proxy/logging/LogAccessICP.h
new file mode 100644
index 00000000..74eca8ed
--- /dev/null
+++ b/proxy/logging/LogAccessICP.h
@@ -0,0 +1,95 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_ACCESS_ICP_H
+#define LOG_ACCESS_ICP_H
+
+#include "LogAccess.h"
+
+class ICPlog;
+
+/*-------------------------------------------------------------------------
+  LogAccessICP
+
+  This class extends the logging system interface as implemented by the
+  ICPlog class.
+  -------------------------------------------------------------------------*/
+
+class LogAccessICP:public LogAccess
+{
+public:
+  LogAccessICP(ICPlog * icp_log);
+  virtual ~ LogAccessICP();
+
+  LogEntryType entry_type()
+  {
+    return LOG_ENTRY_ICP;
+  }
+
+  //
+  // client -> proxy fields
+  //
+  virtual int marshal_client_host_ip(char *);   // STR
+  virtual int marshal_client_host_port(char *); // INT
+  virtual int marshal_client_auth_user_name(char *);    // STR
+  virtual int marshal_client_req_text(char *);  // STR
+  virtual int marshal_client_req_http_method(char *);   // INT
+  virtual int marshal_client_req_url(char *);   // STR
+  virtual int marshal_client_req_url_canon(char *);     // STR
+
+  //
+  // proxy -> client fields
+  //
+  virtual int marshal_proxy_resp_content_type(char *);  // STR
+  virtual int marshal_proxy_resp_squid_len(char *);     // INT
+  virtual int marshal_proxy_resp_content_len(char *);   // INT
+  virtual int marshal_proxy_resp_status_code(char *);   // INT
+  virtual int marshal_cache_result_code(char *);        // INT
+
+  //
+  // proxy -> server fields
+  //
+  virtual int marshal_proxy_hierarchy_route(char *);    // INT
+
+  //
+  // server -> proxy fields
+  //
+  virtual int marshal_server_host_name(char *); // STR
+
+  //
+  // other fields
+  //
+  virtual int marshal_transfer_time_ms(char *); // INT
+  virtual int marshal_transfer_time_s(char *);  // INT
+
+private:
+  ICPlog * m_icp_log;
+
+  // -- member functions that are not allowed --
+  LogAccessICP(const LogAccessICP & rhs);
+  LogAccessICP & operator=(LogAccessICP & rhs);
+};
+
+#endif
diff --git a/proxy/logging/LogAccessTest.cc b/proxy/logging/LogAccessTest.cc
new file mode 100644
index 00000000..22e2f2ab
--- /dev/null
+++ b/proxy/logging/LogAccessTest.cc
@@ -0,0 +1,396 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogAccessTest.cc
+
+
+ ***************************************************************************/
+
+/*-------------------------------------------------------------------------
+  Ok, the name of the game here is to generate 'random' data, with strings
+  of varying length, so that we can use these accessor objects to test the
+  hell out the logging system without relying on the rest of the proxy to
+  provide the data.
+
+  We'll use the random(3) number generator, which returns pseudo-random
+  numbers in the range from 0 to (2^31)-1.  The period is 16^((2^31)-1).
+  srandom(3) is used to seed the random number generator.
+  -------------------------------------------------------------------------*/
+
+#include <assert.h>
+#include <stdio.h>
+#include "LogAccessTest.h"
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+LogAccessTest::LogAccessTest()
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+LogAccessTest::~LogAccessTest()
+{
+}
+
+/*-------------------------------------------------------------------------
+  The marshalling routines ...
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_host_ip(char *buf)
+{
+  IpEndpoint lo;
+  ats_ip4_set(&lo, INADDR_LOOPBACK);
+  return marshal_ip(buf, &lo.sa);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_auth_user_name(char *buf)
+{
+  static char const* str = "major tom";
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_req_text(char *buf)
+{
+  static char const* str = "GET http://www.foobar.com/ HTTP/1.0";
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_req_http_method(char *buf)
+{
+  if (buf) {
+    int64_t val = 1;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_req_url(char *buf)
+{
+  static char const* str = "http://www.foobar.com/";
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_req_http_version(char *buf)
+{
+  if (buf) {
+    int64_t val = 2;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_req_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 3;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_req_body_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 4;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_client_finish_status_code(char *buf)
+{
+  if (buf) {
+    int64_t val = 5;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_resp_content_type(char *buf)
+{
+  static char const* str = "text/html";
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_resp_squid_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 100;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_resp_content_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 6;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_resp_status_code(char *buf)
+{
+  if (buf) {
+    int64_t val = 7;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_resp_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 8;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_finish_status_code(char *buf)
+{
+  if (buf) {
+    int64_t val = 9;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_cache_result_code(char *buf)
+{
+  if (buf) {
+    int64_t val = 10;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_req_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 11;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_req_body_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 12;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_proxy_hierarchy_route(char *buf)
+{
+  if (buf) {
+    int64_t val = 13;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_server_host_ip(char *buf)
+{
+  IpEndpoint lo;
+  ats_ip4_set(&lo, INADDR_LOOPBACK);
+  return marshal_ip(buf, &lo.sa);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_server_host_name(char *buf)
+{
+  static char const* str = "www.foobar.com";
+  int len = LogAccess::strlen(str);
+  if (buf) {
+    marshal_str(buf, str, len);
+  }
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_server_resp_status_code(char *buf)
+{
+  if (buf) {
+    int64_t val = 15;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_server_resp_content_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 16;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_server_resp_header_len(char *buf)
+{
+  if (buf) {
+    int64_t val = 17;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_transfer_time_ms(char *buf)
+{
+  if (buf) {
+    int64_t val = 18;
+    marshal_int(buf, val);
+  }
+  return sizeof(int64_t);
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+int
+LogAccessTest::marshal_http_header_field(char *header_symbol, char *field, char *buf)
+{
+  return 0;                     // STUB
+}
diff --git a/proxy/logging/LogAccessTest.h b/proxy/logging/LogAccessTest.h
new file mode 100644
index 00000000..32629fd0
--- /dev/null
+++ b/proxy/logging/LogAccessTest.h
@@ -0,0 +1,106 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_ACCESS_TEST_H
+#define LOG_ACCESS_TEST_H
+
+#include "LogAccess.h"
+
+/*-------------------------------------------------------------------------
+  LogAccessTest
+
+  This class is used to test the logging system standalone from the proxy
+  by generating random data for the fields.
+  -------------------------------------------------------------------------*/
+
+class LogAccessTest:public LogAccess
+{
+public:
+  LogAccessTest();
+  virtual ~ LogAccessTest();
+
+  void init()
+  {
+  }
+
+  //
+  // client -> proxy fields
+  //
+  virtual int marshal_client_host_ip(char *);   // INT
+  virtual int marshal_client_auth_user_name(char *);    // STR
+  // marshal_client_req_timestamp_sec is non-virtual!
+  virtual int marshal_client_req_text(char *);  // STR
+  virtual int marshal_client_req_http_method(char *);   // INT
+  virtual int marshal_client_req_url(char *);   // STR
+  virtual int marshal_client_req_http_version(char *);  // INT
+  virtual int marshal_client_req_header_len(char *);    // INT
+  virtual int marshal_client_req_body_len(char *);      // INT
+  virtual int marshal_client_finish_status_code(char *);        // INT
+
+  //
+  // proxy -> client fields
+  //
+  virtual int marshal_proxy_resp_content_type(char *);  // STR
+  virtual int marshal_proxy_resp_squid_len(char *);     // INT
+  virtual int marshal_proxy_resp_content_len(char *);   // INT
+  virtual int marshal_proxy_resp_status_code(char *);   // INT
+  virtual int marshal_proxy_resp_header_len(char *);    // INT
+  virtual int marshal_proxy_finish_status_code(char *); // INT
+  virtual int marshal_cache_result_code(char *);        // INT
+
+  //
+  // proxy -> server fields
+  //
+  virtual int marshal_proxy_req_header_len(char *);     // INT
+  virtual int marshal_proxy_req_body_len(char *);       // INT
+  virtual int marshal_proxy_hierarchy_route(char *);    // INT
+
+  //
+  // server -> proxy fields
+  //
+  virtual int marshal_server_host_ip(char *);   // INT
+  virtual int marshal_server_host_name(char *); // STR
+  virtual int marshal_server_resp_status_code(char *);  // INT
+  virtual int marshal_server_resp_content_len(char *);  // INT
+  virtual int marshal_server_resp_header_len(char *);   // INT
+
+  //
+  // other fields
+  //
+  virtual int marshal_transfer_time_ms(char *); // INT
+
+  //
+  // named fields from within a http header
+  //
+  virtual int marshal_http_header_field(char *header_symbol, char *field, char *buf);
+
+private:
+
+  // -- member functions that are not allowed --
+  LogAccessTest(const LogAccessTest & rhs);
+  LogAccessTest & operator=(LogAccessTest & rhs);
+};
+
+#endif
diff --git a/proxy/logging/LogBuffer.cc b/proxy/logging/LogBuffer.cc
new file mode 100644
index 00000000..bf705d5b
--- /dev/null
+++ b/proxy/logging/LogBuffer.cc
@@ -0,0 +1,820 @@
+/** @file
+
+  This file implements the LogBuffer class, a thread-safe buffer for
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section description
+  This file implements the LogBuffer class, a thread-safe buffer for
+  recording log entries. See the header file LogBuffer.h for more
+  information on the structure of a LogBuffer.
+ */
+#include "libts.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "Error.h"
+#include "P_EventSystem.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogUtils.h"
+#include "LogFile.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogAccess.h"
+#include "LogConfig.h"
+#include "LogBuffer.h"
+#include "Log.h"
+
+
+struct FieldListCacheElement
+{
+  LogFieldList *fieldlist;
+  char *symbol_str;
+};
+
+enum
+{
+  FIELDLIST_CACHE_SIZE = 256
+};
+
+FieldListCacheElement fieldlist_cache[FIELDLIST_CACHE_SIZE];
+int fieldlist_cache_entries = 0;
+vint32 LogBuffer::M_ID = 0;
+
+/*-------------------------------------------------------------------------
+  The following LogBufferHeader routines are used to grab strings out from
+  the data section using the offsets held in the buffer header.
+  -------------------------------------------------------------------------*/
+
+char *
+LogBufferHeader::fmt_name()
+{
+  char *addr = NULL;
+  if (fmt_name_offset) {
+    addr = (char *) this + fmt_name_offset;
+  }
+  return addr;
+}
+
+char *
+LogBufferHeader::fmt_fieldlist()
+{
+  char *addr = NULL;
+  if (fmt_fieldlist_offset) {
+    addr = (char *) this + fmt_fieldlist_offset;
+  }
+  return addr;
+}
+
+char *
+LogBufferHeader::fmt_printf()
+{
+  char *addr = NULL;
+  if (fmt_printf_offset) {
+    addr = (char *) this + fmt_printf_offset;
+  }
+  return addr;
+}
+
+char *
+LogBufferHeader::src_hostname()
+{
+  char *addr = NULL;
+  if (src_hostname_offset) {
+    addr = (char *) this + src_hostname_offset;
+  }
+  return addr;
+}
+
+char *
+LogBufferHeader::log_filename()
+{
+  char *addr = NULL;
+  if (log_filename_offset) {
+    addr = (char *) this + log_filename_offset;
+  }
+  return addr;
+}
+
+/*-------------------------------------------------------------------------
+  LogBuffer::LogBuffer
+
+  Initialize a LogBuffer object, which is just an AbstractBuffer object
+  with the addition of a pointer for keeping track of the LogObject object
+  that is allocating this buffer.
+  -------------------------------------------------------------------------*/
+
+LogBuffer::LogBuffer(LogObject * owner, size_t size, size_t buf_align, size_t write_align):
+  m_size(size),
+  m_buf_align(buf_align),
+  m_write_align(write_align), m_owner(owner),
+  m_references(0)
+{
+  size_t hdr_size;
+
+  // create the buffer
+  //
+  m_unaligned_buffer = new char [size + buf_align];
+  m_buffer = (char *)align_pointer_forward(m_unaligned_buffer, buf_align);
+
+  // add the header
+  hdr_size = _add_buffer_header();
+
+  // initialize buffer state
+  m_state.s.offset = hdr_size;
+
+  // update the buffer id (m_id gets the old value)
+  m_id = (uint32_t) ink_atomic_increment((pvint32) & M_ID, 1);
+
+  m_expiration_time = LogUtils::timestamp() + Log::config->max_secs_per_buffer;
+
+  Debug("log-logbuffer","[%p] Created buffer %u for %s at address %p, size %d",
+        this_ethread(), m_id, m_owner->get_base_filename(), m_buffer, (int)size);
+}
+
+LogBuffer::LogBuffer(LogObject * owner, LogBufferHeader * header):
+  m_unaligned_buffer(NULL),
+  m_buffer((char *) header),
+  m_size(0),
+  m_buf_align(LB_DEFAULT_ALIGN),
+  m_write_align(INK_MIN_ALIGN), m_expiration_time(0), m_owner(owner), m_header(header),
+  m_references(0)
+{
+  // This constructor does not allocate a buffer because it gets it as
+  // an argument. We set m_unaligned_buffer to NULL, which means that
+  // no checkout writes or checkin writes are allowed. This is enforced
+  // by the asserts in checkout_write and checkin_write
+
+  // update the buffer id (m_id gets the old value)
+  //
+  m_id = (uint32_t) ink_atomic_increment((pvint32) & M_ID, 1);
+
+  Debug("log-logbuffer","[%p] Created repurposed buffer %u for %s at address %p",
+        this_ethread(), m_id, m_owner->get_base_filename(), m_buffer);
+}
+
+LogBuffer::~LogBuffer()
+{
+  if (m_unaligned_buffer) {
+    delete [] m_unaligned_buffer;
+  } else {
+    delete [] m_buffer;
+  }
+
+  Debug("log-logbuffer", "[%p] Deleted buffer %u at address %p",
+        this_ethread(), m_id, m_unaligned_buffer ? m_unaligned_buffer : m_buffer);
+  m_buffer = 0;
+  m_unaligned_buffer = 0;
+}
+
+/*-------------------------------------------------------------------------
+  LogBuffer::checkout_write
+  -------------------------------------------------------------------------*/
+
+LogBuffer::LB_ResultCode LogBuffer::checkout_write(size_t * write_offset, size_t write_size)
+{
+  // checkout_write should not be called if m_unaligned_buffer was
+  // not allocated, which means that the actual buffer data was given
+  // to the buffer upon construction. Or, in other words, that
+  // LogBuffer::LogBuffer(LogObject *owner, LogBufferHeader *header)
+  // was used to construct the object
+  //
+  ink_assert(m_unaligned_buffer);
+
+  LB_ResultCode ret_val = LB_BUSY;
+  LB_State old_s, new_s;
+  size_t offset = 0;
+  size_t actual_write_size = INK_ALIGN(write_size + sizeof(LogEntryHeader), m_write_align);
+
+  uint64_t retries = (uint64_t) - 1;
+  do {
+    new_s = old_s = m_state;
+
+    if (old_s.s.full) {
+      // the buffer has already been set to full by somebody else
+      // just tell the caller to retry
+      ret_val = LB_RETRY;
+      break;
+    } else {
+      // determine what the state would be if nobody changes it
+      // before we do
+
+      if (write_offset) {
+        if (old_s.s.offset + actual_write_size <= m_size) {
+          // there is room for this entry, update the state
+
+          offset = old_s.s.offset;
+
+          ++new_s.s.num_writers;
+          new_s.s.offset += actual_write_size;
+          ++new_s.s.num_entries;
+
+          ret_val = LB_OK;
+        } else {
+          // there is no room for this entry
+
+          if (old_s.s.num_entries == 0) {
+            ret_val = LB_BUFFER_TOO_SMALL;
+          } else {
+            new_s.s.full = 1;
+            ret_val = old_s.s.num_writers ? LB_FULL_ACTIVE_WRITERS : LB_FULL_NO_WRITERS;
+          }
+        }
+      } else {
+        // this is a request to set the buffer as full
+        // (write_offset == NULL)
+
+        if (old_s.s.num_entries) {
+          new_s.s.full = 1;
+
+          ret_val = (old_s.s.num_writers ? LB_FULL_ACTIVE_WRITERS : LB_FULL_NO_WRITERS);
+        } else {
+          // the buffer has no entries, do nothing
+
+          ret_val = LB_OK;
+          break;
+        }
+      }
+
+      if (switch_state(old_s, new_s)) {
+        // we succeded in setting the new state
+        break;
+      }
+    }
+    ret_val = LB_BUSY;
+  } while (--retries);
+
+  // add the entry header to the buffer if this was a real checkout and
+  // the checkout was successful
+  //
+  if (write_offset && ret_val == LB_OK) {
+    // disable statistics for now
+    //ProxyMutex *mutex = this_ethread()->mutex;
+    //ink_release_assert(mutex->thread_holding == this_ethread());
+    //SUM_DYN_STAT(log_stat_bytes_buffered_stat, actual_write_size);
+
+    LogEntryHeader *entry_header = (LogEntryHeader *) & m_buffer[offset];
+    //entry_header->timestamp = LogUtils::timestamp();
+    struct timeval tp;
+
+    ink_gethrtimeofday(&tp, 0);
+    entry_header->timestamp = tp.tv_sec;
+    entry_header->timestamp_usec = tp.tv_usec;
+    entry_header->entry_len = actual_write_size;
+
+    *write_offset = offset + sizeof(LogEntryHeader);
+  }
+//    Debug("log-logbuffer","[%p] %s for buffer %u (%s) returning %d",
+//        this_ethread(),
+//        (write_offset ? "checkout_write" : "force_new_buffer"),
+//        m_id, m_owner->get_base_filename(), ret_val);
+
+  return ret_val;
+}
+
+/*-------------------------------------------------------------------------
+  LogBuffer::checkin_write
+  -------------------------------------------------------------------------*/
+
+LogBuffer::LB_ResultCode LogBuffer::checkin_write(size_t write_offset)
+{
+  // checkin_write should not be called if m_unaligned_buffer was
+  // not allocated, which means that the actual buffer data was given
+  // to the buffer upon construction. Or, in other words, that
+  // LogBuffer::LogBuffer(LogObject *owner, LogBufferHeader *header)
+  // was used to construct the object
+  //
+  ink_assert(m_unaligned_buffer);
+
+  LB_ResultCode ret_val = LB_OK;
+  LB_State old_s, new_s;
+
+  do {
+    new_s = old_s = m_state;
+
+    ink_assert(write_offset < old_s.s.offset);
+    ink_assert(old_s.s.num_writers > 0);
+
+    if (--new_s.s.num_writers == 0) {
+      ret_val = (old_s.s.full ? LB_ALL_WRITERS_DONE : LB_OK);
+    }
+
+  } while (!switch_state(old_s, new_s));
+
+//    Debug("log-logbuffer","[%p] checkin_write for buffer %u (%s) "
+//        "returning %d (%u writers left)", this_ethread(),
+//        m_id, m_owner->get_base_filename(), ret_val, writers_left);
+
+  return ret_val;
+}
+
+
+unsigned
+LogBuffer::add_header_str(const char *str, char *buf_ptr, unsigned buf_len)
+{
+  unsigned len = 0;
+  // This was ambiguous - should it be the real strlen or the 
+  // rounded up value? Given the +1, presumably it's the real length
+  // plus the terminating nul.
+  if (likely(str && (len = (unsigned) (::strlen(str) + 1)) < buf_len)) {
+    ink_strlcpy(buf_ptr, str, buf_len);
+  }
+  return len;
+}
+
+
+size_t
+LogBuffer::_add_buffer_header()
+{
+  size_t header_len;
+
+  //
+  // initialize the header
+  //
+  LogFormat *fmt = m_owner->m_format;
+  m_header = (LogBufferHeader *) m_buffer;
+  m_header->cookie = LOG_SEGMENT_COOKIE;
+  m_header->version = LOG_SEGMENT_VERSION;
+  m_header->format_type = fmt->type();
+  m_header->entry_count = 0;
+  m_header->low_timestamp = LogUtils::timestamp();
+  m_header->high_timestamp = 0;
+  m_header->log_object_signature = m_owner->get_signature();
+  m_header->log_object_flags = m_owner->get_flags();
+#if defined(LOG_BUFFER_TRACKING)
+  m_header->id = lrand48();
+#endif // defined(LOG_BUFFER_TRACKING)
+
+  //
+  // The remaining header fields actually point into the data section of
+  // the buffer.  Write the data into the buffer and update the total
+  // size of the buffer header.
+  //
+
+  header_len = sizeof(LogBufferHeader); // at least ...
+
+  m_header->fmt_name_offset = 0;
+  m_header->fmt_fieldlist_offset = 0;
+  m_header->fmt_printf_offset = 0;
+  m_header->src_hostname_offset = 0;
+  m_header->log_filename_offset = 0;
+
+  if (fmt->name()) {
+    m_header->fmt_name_offset = header_len;
+    header_len += add_header_str(fmt->name(), &m_buffer[header_len], m_size - header_len);
+  }
+  if (fmt->fieldlist()) {
+    m_header->fmt_fieldlist_offset = header_len;
+    header_len += add_header_str(fmt->fieldlist(), &m_buffer[header_len], m_size - header_len);
+  }
+  if (fmt->printf_str()) {
+    m_header->fmt_printf_offset = header_len;
+    header_len += add_header_str(fmt->printf_str(), &m_buffer[header_len], m_size - header_len);
+  }
+  if (Log::config->hostname) {
+    m_header->src_hostname_offset = header_len;
+    header_len += add_header_str(Log::config->hostname, &m_buffer[header_len], m_size - header_len);
+  }
+  if (m_owner->get_base_filename()) {
+    m_header->log_filename_offset = header_len;
+    header_len += add_header_str(m_owner->get_base_filename(), &m_buffer[header_len], m_size - header_len);
+  }
+  // update the rest of the header fields; make sure the header_len is
+  // correctly aligned, so that the first record will start on a legal
+  // alignment mark.
+  //
+
+  header_len = INK_ALIGN_DEFAULT(header_len);
+
+  m_header->byte_count = header_len;
+  m_header->data_offset = header_len;
+
+  return header_len;
+}
+
+void
+LogBuffer::update_header_data()
+{
+  // only update the header if the LogBuffer did not receive its data
+  // upon construction (i.e., if m_unaligned_buffer was allocated)
+  //
+
+  if (m_unaligned_buffer) {
+    m_header->entry_count = m_state.s.num_entries;
+    m_header->byte_count = m_state.s.offset;
+    m_header->high_timestamp = LogUtils::timestamp();
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogBuffer::max_entry_bytes
+
+  This static function simply returns the greatest number of bytes than an
+  entry can be and fit into a LogBuffer.
+  -------------------------------------------------------------------------*/
+size_t LogBuffer::max_entry_bytes()
+{
+  return (Log::config->log_buffer_size - sizeof(LogBufferHeader));
+}
+
+/*-------------------------------------------------------------------------
+  LogBuffer::resolve_custom_entry
+  -------------------------------------------------------------------------*/
+int
+LogBuffer::resolve_custom_entry(LogFieldList * fieldlist,
+                                char *printf_str, char *read_from, char *write_to,
+                                int write_to_len, long timestamp, long timestamp_usec,
+                                unsigned buffer_version, LogFieldList * alt_fieldlist, char *alt_printf_str)
+{
+  if (fieldlist == NULL || printf_str == NULL)
+    return 0;
+
+  int *readfrom_map = NULL;
+
+  if (alt_fieldlist && alt_printf_str) {
+    LogField *f, *g;
+    int n_alt_fields = alt_fieldlist->count();
+    int i = 0;
+
+    readfrom_map = (int *)ats_malloc(n_alt_fields * sizeof(int));
+    for (f = alt_fieldlist->first(); f; f = alt_fieldlist->next(f)) {
+      int readfrom_pos = 0;
+      bool found_match = false;
+      for (g = fieldlist->first(); g; g = fieldlist->next(g)) {
+        if (strcmp(f->symbol(), g->symbol()) == 0) {
+          found_match = true;
+          readfrom_map[i++] = readfrom_pos;
+          break;
+        }
+        // TODO handle readfrom_pos properly
+        // readfrom_pos += g->size();
+      }
+      if (!found_match) {
+        Note("Alternate format contains a field (%s) not in the " "format logged", f->symbol());
+        break;
+      }
+    }
+  }
+  //
+  // Loop over the printf_str, copying everything to the write_to buffer
+  // except the LOG_FIELD_MARKER characters.  When we reach those, we
+  // substitute the string from the unmarshal routine of the current
+  // LogField object, obtained from the fieldlist.
+  //
+
+  LogField *field = fieldlist->first();
+  int printf_len = (int)::strlen(printf_str);   // OPTIMIZE
+  int bytes_written = 0;
+  int res, i;
+
+  const char *buffer_size_exceeded_msg =
+    "Traffic Server is skipping the current log entry because its size "
+    "exceeds the maximum line (entry) size for an ascii log buffer";
+
+  for (i = 0; i < printf_len; i++) {
+    if (printf_str[i] == LOG_FIELD_MARKER) {
+      if (field != NULL) {
+        char *to = &write_to[bytes_written];
+
+        // for timestamps that are not aggregates, we take the
+        // value from the function argument;  otherwise we use the
+        // unmarshaling function
+        bool non_aggregate_timestamp = false;
+
+        if (field->aggregate() == LogField::NO_AGGREGATE) {
+          char *sym = field->symbol();
+
+          if (strcmp(sym, "cqts") == 0) {
+            char *ptr = (char *) &timestamp;
+            res = LogAccess::unmarshal_int_to_str(&ptr, to, write_to_len - bytes_written);
+            if (buffer_version > 1) {
+              // space was reserved in read buffer; remove it
+              read_from += INK_MIN_ALIGN;
+            }
+
+            non_aggregate_timestamp = true;
+
+          } else if (strcmp(sym, "cqth") == 0) {
+            char *ptr = (char *) &timestamp;
+            res = LogAccess::unmarshal_int_to_str_hex(&ptr, to, write_to_len - bytes_written);
+            if (buffer_version > 1) {
+              // space was reserved in read buffer; remove it
+              read_from += INK_MIN_ALIGN;
+            }
+
+            non_aggregate_timestamp = true;
+
+          } else if (strcmp(sym, "cqtq") == 0) {
+            // From lib/ts
+            res = squid_timestamp_to_buf(to, write_to_len - bytes_written, timestamp, timestamp_usec);
+            if (res < 0)
+              res = -1;
+
+            if (buffer_version > 1) {
+              // space was reserved in read buffer; remove it
+              read_from += INK_MIN_ALIGN;
+            }
+
+            non_aggregate_timestamp = true;
+
+          } else if (strcmp(sym, "cqtn") == 0) {
+            char *str = LogUtils::timestamp_to_netscape_str(timestamp);
+            res = (int)::strlen(str);
+            if (res < write_to_len - bytes_written) {
+              memcpy(to, str, res);
+            } else {
+              res = -1;
+            }
+            if (buffer_version > 1) {
+              // space was reserved in read buffer; remove it
+              read_from += INK_MIN_ALIGN;
+            }
+
+            non_aggregate_timestamp = true;
+
+          } else if (strcmp(sym, "cqtd") == 0) {
+            char *str = LogUtils::timestamp_to_date_str(timestamp);
+            res = (int)::strlen(str);
+            if (res < write_to_len - bytes_written) {
+              memcpy(to, str, res);
+            } else {
+              res = -1;
+            }
+            if (buffer_version > 1) {
+              // space was reserved in read buffer; remove it
+              read_from += INK_MIN_ALIGN;
+            }
+
+            non_aggregate_timestamp = true;
+
+          } else if (strcmp(sym, "cqtt") == 0) {
+            char *str = LogUtils::timestamp_to_time_str(timestamp);
+            res = (int)::strlen(str);
+            if (res < write_to_len - bytes_written) {
+              memcpy(to, str, res);
+            } else {
+              res = -1;
+            }
+            if (buffer_version > 1) {
+              // space was reserved in read buffer; remove it
+              read_from += INK_MIN_ALIGN;
+            }
+
+            non_aggregate_timestamp = true;
+          }
+        }
+
+        if (!non_aggregate_timestamp) {
+          res = field->unmarshal(&read_from, to, write_to_len - bytes_written);
+        }
+
+        if (res < 0) {
+          Note("%s", buffer_size_exceeded_msg);
+          bytes_written = 0;
+          break;
+        }
+
+        bytes_written += res;
+        field = fieldlist->next(field);
+      } else {
+        Note("There are more field markers than fields;" " cannot process log entry");
+        bytes_written = 0;
+        break;
+      }
+    } else {
+      if (1 + bytes_written < write_to_len) {
+        write_to[bytes_written++] = printf_str[i];
+      } else {
+        Note("%s", buffer_size_exceeded_msg);
+        bytes_written = 0;
+        break;
+      }
+    }
+  }
+
+  ats_free(readfrom_map);
+  return bytes_written;
+}
+
+/*-------------------------------------------------------------------------
+  LogBuffer::to_ascii
+
+  This routine converts a log entry into an ascii string in the buffer
+  space provided, and returns the length of the new string (not including
+  trailing null, like strlen).
+  -------------------------------------------------------------------------*/
+int
+LogBuffer::to_ascii(LogEntryHeader * entry, LogFormatType type,
+                    char *buf, int buf_len, const char *symbol_str, char *printf_str,
+                    unsigned buffer_version, const char *alt_format)
+{
+  ink_assert(entry != NULL);
+  ink_assert(type == LOG_FORMAT_CUSTOM || type == LOG_FORMAT_TEXT);
+  ink_assert(buf != NULL);
+
+  char *read_from;              // keeps track of where we're reading from entry
+  char *write_to;               // keeps track of where we're writing into buf
+
+  read_from = (char *) entry + sizeof(LogEntryHeader);
+  write_to = buf;
+
+  if (type == LOG_FORMAT_TEXT) {
+    //
+    // text log entries are just strings, so simply move it into the
+    // format buffer.
+    //
+    return ink_strlcpy(write_to, read_from, buf_len);
+  }
+  //
+  // We no longer make the distinction between custom vs pre-defined
+  // logging formats in converting to ASCII.  This way we're sure to
+  // always be using the correct printf string and symbols for this
+  // buffer since we get it from the buffer header.
+  //
+  // We want to cache the unmarshaling "plans" so that we don't have to
+  // re-create them each time.  We can use the symbol string as a key to
+  // these stored plans.
+  //
+
+  int i;
+  LogFieldList *fieldlist = NULL;
+
+  for (i = 0; i < fieldlist_cache_entries; i++) {
+    if (strcmp(symbol_str, fieldlist_cache[i].symbol_str) == 0) {
+      Debug("log-fieldlist", "Fieldlist for %s found in cache, #%d", symbol_str, i);
+      fieldlist = fieldlist_cache[i].fieldlist;
+      break;
+    }
+  }
+
+  if (!fieldlist) {
+    Debug("log-fieldlist", "Fieldlist for %s not found; creating ...", symbol_str);
+    fieldlist = new LogFieldList;
+    ink_assert(fieldlist != NULL);
+    bool contains_aggregates = false;
+    LogFormat::parse_symbol_string(symbol_str, fieldlist, &contains_aggregates);
+
+    if (fieldlist_cache_entries < FIELDLIST_CACHE_SIZE) {
+      Debug("log-fieldlist", "Fieldlist cached as entry %d", fieldlist_cache_entries);
+      fieldlist_cache[fieldlist_cache_entries].fieldlist = fieldlist;
+      fieldlist_cache[fieldlist_cache_entries].symbol_str = ats_strdup(symbol_str);
+      fieldlist_cache_entries++;
+    }
+  }
+
+  LogFieldList *alt_fieldlist = NULL;
+  char *alt_printf_str = NULL;
+  char *alt_symbol_str = NULL;
+  bool bad_alt_format = false;
+
+  if (alt_format) {
+    int n_alt_fields = LogFormat::parse_format_string(alt_format,
+                                                      &alt_printf_str, &alt_symbol_str);
+    if (n_alt_fields < 0) {
+      Note("Error parsing alternate format string: %s", alt_format);
+      bad_alt_format = true;
+    }
+
+    if (!bad_alt_format) {
+      alt_fieldlist = new LogFieldList;
+      bool contains_aggs = false;
+      int n_alt_fields2 = LogFormat::parse_symbol_string(alt_symbol_str,
+                                                         alt_fieldlist, &contains_aggs);
+      if (n_alt_fields2 > 0 && contains_aggs) {
+        Note("Alternative formats not allowed to contain aggregates");
+        bad_alt_format = true;;
+      }
+    }
+  }
+
+  if (bad_alt_format) {
+    delete alt_fieldlist;
+    ats_free(alt_printf_str);
+    ats_free(alt_symbol_str);
+    alt_fieldlist = NULL;
+    alt_printf_str = NULL;
+    alt_symbol_str = NULL;
+  }
+
+  int ret = resolve_custom_entry(fieldlist, printf_str,
+                                 read_from, write_to, buf_len, entry->timestamp,
+                                 entry->timestamp_usec, buffer_version,
+                                 alt_fieldlist, alt_printf_str);
+
+  delete alt_fieldlist;
+  ats_free(alt_printf_str);
+  ats_free(alt_symbol_str);
+
+  return ret;
+}
+
+/*-------------------------------------------------------------------------
+  LogBufferList
+
+  The operations on this list need to be atomic because the buffers are
+  added by client threads and removed by the logging thread.  This is
+  accomplished by protecting the operations with a mutex.
+
+  Also, the list must offer FIFO semantics so that a buffers are removed
+  from the list in the same order that they are added, so that timestamp
+  ordering in the log file is preserved.
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  LogBufferList::LogBufferList
+  -------------------------------------------------------------------------*/
+
+LogBufferList::LogBufferList()
+{
+  m_size = 0;
+  ink_mutex_init(&m_mutex, "LogBufferList");
+}
+
+/*-------------------------------------------------------------------------
+  LogBufferList::~LogBufferList
+  -------------------------------------------------------------------------*/
+
+LogBufferList::~LogBufferList()
+{
+  LogBuffer *lb;
+  while ((lb = get()) != NULL) {
+      delete lb;
+  }
+  m_size = 0;
+  ink_mutex_destroy(&m_mutex);
+}
+
+/*-------------------------------------------------------------------------
+  LogBufferList::add (or enqueue)
+  -------------------------------------------------------------------------*/
+
+void
+LogBufferList::add(LogBuffer * lb)
+{
+  ink_assert(lb != NULL);
+
+  ink_mutex_acquire(&m_mutex);
+  m_buffer_list.enqueue (lb);
+  ink_assert(m_size >= 0);
+  m_size++;
+  ink_mutex_release(&m_mutex);
+}
+
+/*-------------------------------------------------------------------------
+  LogBufferList::get (or dequeue)
+  -------------------------------------------------------------------------*/
+
+LogBuffer *
+LogBufferList::get()
+{
+  LogBuffer *lb;
+
+  ink_mutex_acquire(&m_mutex);
+  lb =  m_buffer_list.dequeue ();
+  if (lb != NULL) {
+    m_size--;
+    ink_assert(m_size >= 0);
+  }
+  ink_mutex_release(&m_mutex);
+  return lb;
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+LogEntryHeader *
+LogBufferIterator::next()
+{
+  LogEntryHeader *ret_val = NULL;
+  LogEntryHeader *entry = (LogEntryHeader *) m_next;
+
+  if (entry) {
+    if (m_iter_entry_count < m_buffer_entry_count) {
+      m_next += entry->entry_len;
+      ++m_iter_entry_count;
+      ret_val = entry;
+    }
+  }
+
+  return ret_val;
+}
diff --git a/proxy/logging/LogBuffer.h b/proxy/logging/LogBuffer.h
new file mode 100644
index 00000000..20ab6019
--- /dev/null
+++ b/proxy/logging/LogBuffer.h
@@ -0,0 +1,324 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef LOG_BUFFER_H
+#define LOG_BUFFER_H
+
+#include "libts.h"
+#include "LogFormat.h"
+#include "LogLimits.h"
+#include "LogAccess.h"
+
+class LogObject;
+class LogBufferIterator;
+
+#define LOG_SEGMENT_COOKIE 0xaceface
+#define LOG_SEGMENT_VERSION 2
+
+#if defined(linux)
+#define LB_DEFAULT_ALIGN 512
+#else
+#define LB_DEFAULT_ALIGN 8
+#endif
+
+/*-------------------------------------------------------------------------
+  LogEntryHeader
+
+  This struct is automatically laid down at the head of each entry in the
+  buffer.
+  -------------------------------------------------------------------------*/
+
+struct LogEntryHeader
+{
+  int64_t timestamp;               // the seconds portion of the timestamp
+  int32_t timestamp_usec;          // the microseconds portion of the timestamp
+  uint32_t entry_len;
+};
+
+/*-------------------------------------------------------------------------
+  LogBufferHeader
+
+  This struct is automatically laid down at the head of each buffer.
+  -------------------------------------------------------------------------*/
+
+struct LogBufferHeader
+{
+  uint32_t cookie;              // so we can find it on disk
+  uint32_t version;             // in case we want to change it later
+  uint32_t format_type;         // SQUID_LOG, COMMON_LOG, ...
+  uint32_t byte_count;          // acutal # of bytes for the segment
+  uint32_t entry_count;         // actual number of entries stored
+  uint32_t low_timestamp;       // lowest timestamp value of entries
+  uint32_t high_timestamp;      // highest timestamp value of entries
+  uint32_t log_object_flags;        // log object flags
+  uint64_t log_object_signature;  // log object signature
+#if defined(LOG_BUFFER_TRACKING)
+  uint32_t int id;
+#endif                          // defined(LOG_BUFFER_TRACKING)
+
+  // all offsets are computed from the start of the buffer (ie, "this"),
+  // and so any valid offset will be at least sizeof(LogBufferHeader).
+
+  uint32_t fmt_name_offset;     // offset to format name string
+  uint32_t fmt_fieldlist_offset;        // offset to format fieldlist string
+  uint32_t fmt_printf_offset;   // offset to format printf string
+  uint32_t src_hostname_offset; // offset to source (client) hostname
+  uint32_t log_filename_offset; // offset to log filename
+  uint32_t data_offset;         // offset to start of data entry
+  // section
+
+  // some helper functions to return the header strings
+
+  char *fmt_name();             // not used
+  char *fmt_fieldlist();
+  char *fmt_printf();
+  char *src_hostname();
+  char *log_filename();
+};
+
+
+union LB_State
+{
+  LB_State()
+    : ival(0)
+  { }
+
+  LB_State(volatile LB_State & vs)
+  {
+    ival = vs.ival;
+  }
+
+  LB_State & operator =(volatile LB_State & vs)
+  {
+    ival = vs.ival;
+    return *this;
+  }
+
+  int64_t ival;
+  struct
+  {
+    uint32_t offset;              // buffer offset(bytes in buffer)
+    uint16_t num_entries;         // number of entries in buffer
+    uint16_t full:1;              // not accepting more checkouts
+    uint16_t num_writers:15;      // number of writers
+  } s;
+};
+
+/*-------------------------------------------------------------------------
+  LogBuffer
+  -------------------------------------------------------------------------*/
+class LogBuffer
+{
+public:
+  SLINK(LogBuffer, write_link);
+  enum LB_ResultCode {
+    LB_OK = 0,
+    LB_FULL_NO_WRITERS,
+    LB_FULL_ACTIVE_WRITERS,
+    LB_RETRY,
+    LB_ALL_WRITERS_DONE,
+    LB_BUSY,
+    LB_BUFFER_TOO_SMALL
+  };
+
+    LogBuffer(LogObject * owner, size_t size,
+              size_t buf_align = LB_DEFAULT_ALIGN, size_t write_align = INK_MIN_ALIGN);
+    LogBuffer(LogObject * owner, LogBufferHeader * header);
+   ~LogBuffer();
+
+  char &operator [] (int idx)
+  {
+    ink_assert(idx >= 0);
+    ink_assert((size_t) idx < m_size);
+    return m_buffer[idx];
+  }
+
+  int switch_state(LB_State & old_state, LB_State & new_state)
+  {
+    INK_WRITE_MEMORY_BARRIER;
+    return (ink_atomic_cas( & m_state.ival, old_state.ival, new_state.ival));
+  }
+
+  LB_ResultCode checkout_write(size_t * write_offset, size_t write_size);
+  LB_ResultCode checkin_write(size_t write_offset);
+  void force_full();
+
+  LogBufferHeader *header() { return m_header; }
+  long expiration_time() { return m_expiration_time; }
+
+  // this should only be called when buffer is ready to be flushed
+  void update_header_data();
+
+  uint32_t get_id() { return m_id; }
+  LogObject *get_owner() const { return m_owner; }
+
+  LINK(LogBuffer, link);;
+
+  // static variables
+  static vint32 M_ID;
+
+  // static functions
+  static size_t max_entry_bytes();
+  static int to_ascii(LogEntryHeader * entry, LogFormatType type,
+                      char *buf, int max_len, const char *symbol_str, char *printf_str,
+                      unsigned buffer_version, const char *alt_format = NULL);
+  static int resolve_custom_entry(LogFieldList * fieldlist,
+                                  char *printf_str, char *read_from, char *write_to,
+                                  int write_to_len, long timestamp, long timestamp_us,
+                                  unsigned buffer_version, LogFieldList * alt_fieldlist = NULL,
+                                  char *alt_printf_str = NULL);
+
+  static void destroy(LogBuffer *lb) {
+    // ink_atomic_increment() returns the previous value, so when it was 1, we are
+    // the thread that decremented to zero and should delete ...
+    int refcnt = ink_atomic_increment(&lb->m_references, -1);
+
+    if (refcnt == 1) {
+      delete lb;
+    }
+
+    ink_release_assert(refcnt >= 0);
+  }
+
+private:
+  char *m_unaligned_buffer;     // the unaligned buffer
+  char *m_buffer;               // the buffer
+  size_t m_size;                // the buffer size
+  size_t m_buf_align;           // the buffer alignment
+  size_t m_write_align;         // the write alignment mask
+
+  long m_expiration_time;       // buffer expiration time
+
+  LogObject *m_owner;           // the LogObject that owns this buf.
+  LogBufferHeader *m_header;
+
+  uint32_t m_id;                // unique buffer id (for debugging)
+public:
+  volatile LB_State m_state;    // buffer state
+  volatile int m_references;    // oustanding checkout_write references.
+private:
+
+  // private functions
+  size_t _add_buffer_header();
+  unsigned add_header_str(const char *str, char *buf_ptr, unsigned buf_len);
+
+  // -- member functions that are not allowed --
+  LogBuffer();
+  LogBuffer(const LogBuffer & rhs);
+  LogBuffer & operator=(const LogBuffer & rhs);
+
+  friend class LogBufferIterator;
+};
+
+class LogFile;
+
+/*-------------------------------------------------------------------------
+  LogBufferList
+
+  Support atomic operations on a list of LogBuffer objects.
+  -------------------------------------------------------------------------*/
+
+class LogBufferList
+{
+private:
+  Queue<LogBuffer> m_buffer_list;
+  ink_mutex m_mutex;
+  int m_size;
+
+public:
+  LogBufferList();
+  ~LogBufferList();
+
+  void add(LogBuffer * lb);
+  LogBuffer *get(void);
+  int get_size(void)
+  {
+    return m_size;
+  }
+};
+
+/*-------------------------------------------------------------------------
+  LogBufferIterator
+
+  This class will iterate over the entries in a LogBuffer.
+  -------------------------------------------------------------------------*/
+
+class LogBufferIterator {
+public:
+  LogBufferIterator(LogBufferHeader * header, bool in_network_order = false);
+  ~LogBufferIterator();
+
+  LogEntryHeader *next();
+
+private:
+  bool m_in_network_order;
+  char *m_next;
+  unsigned m_iter_entry_count;
+  unsigned m_buffer_entry_count;
+
+  // -- member functions not allowed --
+    LogBufferIterator();
+    LogBufferIterator(const LogBufferIterator &);
+    LogBufferIterator & operator=(const LogBufferIterator &);
+};
+
+
+/*-------------------------------------------------------------------------
+  LogBufferIterator
+
+  This class provides the ability to iterate over the LogEntries stored
+  within a given LogBuffer.
+  -------------------------------------------------------------------------*/
+
+inline
+LogBufferIterator::LogBufferIterator(LogBufferHeader * header, bool in_network_order)
+  : m_in_network_order(in_network_order),
+    m_next(0),
+    m_iter_entry_count(0),
+    m_buffer_entry_count(0)
+{
+  ink_assert(header);
+
+  switch (header->version) {
+  case LOG_SEGMENT_VERSION:
+    m_next = (char *) header + header->data_offset;
+    m_buffer_entry_count = header->entry_count;
+    break;
+
+  default:
+    Note("Invalid LogBuffer version %d in LogBufferIterator; "
+         "current version is %d", header->version, LOG_SEGMENT_VERSION);
+    break;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+inline
+LogBufferIterator::~LogBufferIterator()
+{
+}
+#endif
diff --git a/proxy/logging/LogBufferSink.h b/proxy/logging/LogBufferSink.h
new file mode 100644
index 00000000..53789df7
--- /dev/null
+++ b/proxy/logging/LogBufferSink.h
@@ -0,0 +1,53 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_BUFFER_SINK
+#define LOG_BUFFER_SINK
+
+#include "LogBuffer.h"
+
+/**********************************************************************
+The LogBufferSink class in an abstract class that provides an interface
+for classes that take a LogBuffer and write it to disk or send it over
+the network
+**********************************************************************/
+
+class LogBufferSink
+{
+public:
+  //
+  // The preproc_and_try_delete() function should be responsible for
+  // freeing memory pointed to by _buffer_ parameter.
+  //
+  // Of course, this function may not free memory directly, it
+  // can delegate another function to do it.
+  //
+  // return 0 if success, -1 on error.
+  //
+  virtual int preproc_and_try_delete(LogBuffer * buffer) = 0;
+  virtual ~ LogBufferSink()
+  {
+  };
+};
+
+#endif
diff --git a/proxy/logging/LogCollationAccept.cc b/proxy/logging/LogCollationAccept.cc
new file mode 100644
index 00000000..19149e5f
--- /dev/null
+++ b/proxy/logging/LogCollationAccept.cc
@@ -0,0 +1,111 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//-------------------------------------------------------------------------
+// include files
+//-------------------------------------------------------------------------
+
+#include "libts.h"
+#include "P_EventSystem.h"
+
+#include "Log.h"
+#include "LogCollationAccept.h"
+#include "LogCollationHostSM.h"
+
+//-------------------------------------------------------------------------
+// LogCollationAccept::LogCollationAccept
+//-------------------------------------------------------------------------
+
+LogCollationAccept::LogCollationAccept(int port)
+  : Continuation(new_ProxyMutex()),
+    m_port(port),
+    m_pending_event(NULL)
+{
+  NetProcessor::AcceptOptions opt;
+  SET_HANDLER((LogCollationAcceptHandler) & LogCollationAccept::accept_event);
+  // work around for iocore problem where _pre_fetch_buffer can get
+  // appended to itself if multiple do_io_reads are called requesting
+  // small amounts of data.  Most arguments are default except for the
+  // last one which we will set to true.
+  // [amc] That argument is ignored so I dropped it.
+  opt.local_port = m_port;
+  opt.ip_family = AF_INET;
+  opt.accept_threads = 0;
+  m_accept_action = netProcessor.accept(this, opt);
+  ink_assert(NULL != m_accept_action);
+}
+
+//-------------------------------------------------------------------------
+// LogCollationAccept::~LogCollationAccept
+//-------------------------------------------------------------------------
+
+LogCollationAccept::~LogCollationAccept()
+{
+  Debug("log-collation", "LogCollationAccept::~LogCollationAccept");
+
+  // stop the netProcessor
+  if (m_accept_action) {
+    m_accept_action->cancel();
+    m_accept_action = NULL;
+
+    Debug("log-collation", "closing Log::collation_accept_file_descriptor "
+          "(%d)", Log::collation_accept_file_descriptor);
+    if (::close(Log::collation_accept_file_descriptor) < 0) {
+      Error("error closing collate listen file descriptor [%d]: %s",
+            Log::collation_accept_file_descriptor, strerror(errno));
+    } else {
+      Log::collation_accept_file_descriptor = NO_FD;
+    }
+  } else {
+    ink_assert(!"[ERROR] m_accept_action is NULL");
+  }
+
+  // stop the eventProcessor
+  // ... but what if there's more than one pending?
+  if (m_pending_event && (m_pending_event != ACTION_RESULT_DONE)) {
+    m_pending_event->cancel();
+  }
+}
+
+//-------------------------------------------------------------------------
+// LogCollationAccept::accept_event
+//-------------------------------------------------------------------------
+
+int
+LogCollationAccept::accept_event(int event, NetVConnection * net_vc)
+{
+  LogCollationHostSM *sm;
+
+  switch (event) {
+  case NET_EVENT_ACCEPT:
+    sm = new LogCollationHostSM(net_vc);
+    ink_assert(NULL != sm);
+    break;
+
+  default:
+    ink_assert(!"[ERROR] Unexpected Event");
+
+  }
+
+  return EVENT_CONT;
+}
diff --git a/proxy/logging/LogCollationAccept.h b/proxy/logging/LogCollationAccept.h
new file mode 100644
index 00000000..dc077b9c
--- /dev/null
+++ b/proxy/logging/LogCollationAccept.h
@@ -0,0 +1,47 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_COLLATION_ACCEPT_H
+#define LOG_COLLATION_ACCEPT_H
+
+#include "P_EventSystem.h"
+#include "P_Net.h"
+struct LogCollationAccept: public Continuation
+{
+
+public:
+  LogCollationAccept(int port);
+   ~LogCollationAccept();
+
+  int accept_event(int event, NetVConnection * net_vc);
+
+private:
+  int m_port;
+  Action *m_accept_action;
+  Event *m_pending_event;
+
+};
+
+typedef int (LogCollationAccept::*LogCollationAcceptHandler) (int, void *);
+
+#endif /* LOG_COLLATION_ACCEPT_H */
diff --git a/proxy/logging/LogCollationBase.h b/proxy/logging/LogCollationBase.h
new file mode 100644
index 00000000..d6291c98
--- /dev/null
+++ b/proxy/logging/LogCollationBase.h
@@ -0,0 +1,51 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_COLLATION_BASE_H
+#define LOG_COLLATION_BASE_H
+
+//-------------------------------------------------------------------------
+// LogCollationBase
+//-------------------------------------------------------------------------
+
+class LogCollationBase
+{
+protected:
+  // ToDo: Can we we use the stuff from LogSock.h instead??
+  struct NetMsgHeader
+  {
+    int msg_bytes;              // length of the following message
+  };
+
+  enum LogCollEvent
+  {
+    LOG_COLL_EVENT_NULL = LOG_COLLATION_EVENT_EVENTS_START,
+    LOG_COLL_EVENT_SWITCH,
+    LOG_COLL_EVENT_READ_COMPLETE,
+    LOG_COLL_EVENT_WRITE_COMPLETE,
+    LOG_COLL_EVENT_ERROR
+  };
+
+};
+
+#endif // LOG_COLLATION_BASE_H
diff --git a/proxy/logging/LogCollationClientSM.cc b/proxy/logging/LogCollationClientSM.cc
new file mode 100644
index 00000000..4d2264bd
--- /dev/null
+++ b/proxy/logging/LogCollationClientSM.cc
@@ -0,0 +1,738 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//-------------------------------------------------------------------------
+// include files
+//-------------------------------------------------------------------------
+
+#include "libts.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "P_EventSystem.h"
+#include "P_Net.h"
+
+#include "LogUtils.h"
+#include "LogSock.h"
+#include "LogField.h"
+#include "LogFile.h"
+#include "LogFormat.h"
+#include "LogBuffer.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "Log.h"
+
+#include "LogCollationClientSM.h"
+
+//-------------------------------------------------------------------------
+// statics
+//-------------------------------------------------------------------------
+
+int LogCollationClientSM::ID = 0;
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::LogCollationClientSM
+//-------------------------------------------------------------------------
+
+LogCollationClientSM::LogCollationClientSM(LogHost * log_host)
+  : Continuation(new_ProxyMutex()),
+    m_host_vc(NULL),
+    m_host_vio(NULL),
+    m_auth_buffer(NULL),
+    m_auth_reader(NULL),
+    m_send_buffer(NULL),
+    m_send_reader(NULL),
+    m_pending_action(NULL),
+    m_pending_event(NULL),
+    m_abort_vio(NULL),
+    m_abort_buffer(NULL),
+    m_host_is_up(false),
+    m_buffer_send_list(NULL),
+    m_buffer_in_iocore(NULL),
+    m_flow(LOG_COLL_FLOW_ALLOW),
+    m_log_host(log_host),
+    m_id(ID++)
+{
+  Debug("log-coll", "[%d]client::constructor", m_id);
+
+  ink_assert(m_log_host != NULL);
+
+  // allocate send_list before we do anything
+  // we can accept logs to send before we're fully initialized
+  m_buffer_send_list = new LogBufferList();
+  ink_assert(m_buffer_send_list != NULL);
+
+  SET_HANDLER((LogCollationClientSMHandler) & LogCollationClientSM::client_handler);
+  client_init(LOG_COLL_EVENT_SWITCH, NULL);
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::~LogCollationClientSM
+//-------------------------------------------------------------------------
+
+LogCollationClientSM::~LogCollationClientSM()
+{
+  Debug("log-coll", "[%d]client::destructor", m_id);
+
+  ink_mutex_acquire(&(mutex->the_mutex));
+  client_done(LOG_COLL_EVENT_SWITCH, NULL);
+  ink_mutex_release(&(mutex->the_mutex));
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// handler
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_handler
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_handler(int event, void *data)
+{
+  switch (m_client_state) {
+  case LOG_COLL_CLIENT_AUTH:
+    return client_auth(event, (VIO *) data);
+  case LOG_COLL_CLIENT_DNS:
+    return client_dns(event, (HostDBInfo *) data);
+  case LOG_COLL_CLIENT_DONE:
+    return client_done(event, data);
+  case LOG_COLL_CLIENT_FAIL:
+    return client_fail(event, data);
+  case LOG_COLL_CLIENT_IDLE:
+    return client_idle(event, data);
+  case LOG_COLL_CLIENT_INIT:
+    return client_init(event, data);
+  case LOG_COLL_CLIENT_OPEN:
+    return client_open(event, (NetVConnection *) data);
+  case LOG_COLL_CLIENT_SEND:
+    return client_send(event, (VIO *) data);
+  default:
+    ink_assert(!"unexpcted state");
+    return EVENT_CONT;
+  }
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// pubic interface
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::send
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::send(LogBuffer * log_buffer)
+{
+  ip_port_text_buffer ipb;
+
+  // take lock (can block on call because we're on our own thread)
+  ink_mutex_acquire(&(mutex->the_mutex));
+
+  Debug("log-coll", "[%d]client::send", m_id);
+
+  // deny if state is DONE or FAIL
+  if (m_client_state == LOG_COLL_CLIENT_DONE || m_client_state == LOG_COLL_CLIENT_FAIL) {
+    Debug("log-coll", "[%d]client::send - DONE/FAIL state; rejecting", m_id);
+    ink_mutex_release(&(mutex->the_mutex));
+    return 0;
+  }
+  // only allow send if m_flow is ALLOW
+  if (m_flow == LOG_COLL_FLOW_DENY) {
+    Debug("log-coll", "[%d]client::send - m_flow = DENY; rejecting", m_id);
+    ink_mutex_release(&(mutex->the_mutex));
+    return 0;
+  }
+  // add log_buffer to m_buffer_send_list
+  ink_assert(log_buffer != NULL);
+  ink_assert(m_buffer_send_list != NULL);
+  m_buffer_send_list->add(log_buffer);
+  Debug("log-coll", "[%d]client::send - new log_buffer to send_list", m_id);
+
+  // disable m_flow if there's too much work to do now
+  ink_assert(m_flow == LOG_COLL_FLOW_ALLOW);
+  if (m_buffer_send_list->get_size() >= Log::config->collation_max_send_buffers) {
+    Debug("log-coll", "[%d]client::send - m_flow = DENY", m_id);
+    Note("[log-coll] send-queue full; orphaning logs      "
+         "[%s:%u]", m_log_host->ip_addr().toString(ipb, sizeof(ipb)), m_log_host->port());
+    m_flow = LOG_COLL_FLOW_DENY;
+  }
+  // compute return value
+  //   must be done before call to client_send.  log_buffer may
+  //   be converted to network order during that call.
+  LogBufferHeader *log_buffer_header = log_buffer->header();
+  ink_assert(log_buffer_header != NULL);
+  int bytes_to_write = log_buffer_header->byte_count;
+
+  // re-initiate sending if currently idle
+  if (m_client_state == LOG_COLL_CLIENT_IDLE) {
+    m_client_state = LOG_COLL_CLIENT_SEND;
+    ink_assert(m_pending_event == NULL);
+    m_pending_event = eventProcessor.schedule_imm(this);
+    //eventProcessor.schedule_imm(this);
+    //client_send(LOG_COLL_EVENT_SWITCH, NULL);
+  }
+
+  ink_mutex_release(&(mutex->the_mutex));
+  return bytes_to_write;
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// client states
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_auth
+// next: client_fail || client_send
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_auth(int event, VIO * /* vio ATS_UNUSED */)
+{
+  ip_port_text_buffer ipb;
+
+  Debug("log-coll", "[%d]client::client_auth", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    {
+      Debug("log-coll", "[%d]client::client_auth - SWITCH", m_id);
+      m_client_state = LOG_COLL_CLIENT_AUTH;
+
+      NetMsgHeader nmh;
+      int bytes_to_send = (int) strlen(Log::config->collation_secret);
+      nmh.msg_bytes = bytes_to_send;
+
+      // memory copies, I know...  but it happens rarely!!!  ^_^
+      ink_assert(m_auth_buffer != NULL);
+      m_auth_buffer->write((char *) &nmh, sizeof(NetMsgHeader));
+      m_auth_buffer->write(Log::config->collation_secret, bytes_to_send);
+      bytes_to_send += sizeof(NetMsgHeader);
+
+      Debug("log-coll", "[%d]client::client_auth - do_io_write(%d)", m_id, bytes_to_send);
+      ink_assert(m_host_vc != NULL);
+      m_host_vio = m_host_vc->do_io_write(this, bytes_to_send, m_auth_reader);
+      ink_assert(m_host_vio != NULL);
+
+      return EVENT_CONT;
+    }
+
+  case VC_EVENT_WRITE_READY:
+    Debug("log-coll", "[%d]client::client_auth - WRITE_READY", m_id);
+    return EVENT_CONT;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    Debug("log-coll", "[%d]client::client_auth - WRITE_COMPLETE", m_id);
+
+    Note("[log-coll] host up [%s:%u]", m_log_host->ip_addr().toString(ipb, sizeof(ipb)), m_log_host->port());
+    m_host_is_up = true;
+
+    return client_send(LOG_COLL_EVENT_SWITCH, NULL);
+
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+    {
+      Debug("log-coll", "[%d]client::client_auth - EOS|ERROR", m_id);
+      int64_t read_avail = m_auth_reader->read_avail();
+
+      if (read_avail > 0) {
+        Debug("log-coll", "[%d]client::client_auth - consuming unsent data", m_id);
+        m_auth_reader->consume(read_avail);
+      }
+
+      return client_fail(LOG_COLL_EVENT_SWITCH, NULL);
+    }
+
+  default:
+    ink_assert(!"unexpected event");
+    return EVENT_CONT;
+  }
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_dns
+// next: client_open || client_done
+//-------------------------------------------------------------------------
+int
+LogCollationClientSM::client_dns(int event, HostDBInfo * hostdb_info)
+{
+  Debug("log-coll", "[%d]client::client_dns", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    m_client_state = LOG_COLL_CLIENT_DNS;
+    if (m_log_host->m_name == 0) {
+      return client_done(LOG_COLL_EVENT_SWITCH, NULL);
+    }
+    hostDBProcessor.getbyname_re(this, m_log_host->m_name, 0,
+                                 HostDBProcessor::Options().setFlags(HostDBProcessor::HOSTDB_FORCE_DNS_RELOAD));
+    return EVENT_CONT;
+
+  case EVENT_HOST_DB_LOOKUP:
+    if (hostdb_info == NULL) {
+      return client_done(LOG_COLL_EVENT_SWITCH, NULL);
+    }
+    m_log_host->m_ip.assign(hostdb_info->ip());
+    m_log_host->m_ip.toString(m_log_host->m_ipstr, sizeof(m_log_host->m_ipstr));
+
+    return client_open(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpected event");
+    return EVENT_CONT;
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_done
+// next: <none>
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_done(int event, void * /* data ATS_UNUSED */)
+{
+  ip_port_text_buffer ipb;
+
+  Debug("log-coll", "[%d]client::client_done", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    m_client_state = LOG_COLL_CLIENT_DONE;
+
+    Note("[log-coll] client shutdown [%s:%u]", m_log_host->ip_addr().toString(ipb, sizeof(ipb)), m_log_host->port());
+
+    // close connections
+    if (m_host_vc) {
+      Debug("log-coll", "[%d]client::client_done - disconnecting!", m_id);
+      // do I need to delete this???
+      m_host_vc->do_io_close(0);
+      m_host_vc = 0;
+    }
+    // flush unsent logs to orphan
+    flush_to_orphan();
+
+    // cancel any pending events/actions
+    if (m_pending_action != NULL) {
+      m_pending_action->cancel();
+    }
+    if (m_pending_event != NULL) {
+      m_pending_event->cancel();
+    }
+    // free memory
+    if (m_auth_buffer) {
+      if (m_auth_reader) {
+        m_auth_buffer->dealloc_reader(m_auth_reader);
+      }
+      free_MIOBuffer(m_auth_buffer);
+    }
+    if (m_send_buffer) {
+      if (m_send_reader) {
+        m_send_buffer->dealloc_reader(m_send_reader);
+      }
+      free_MIOBuffer(m_send_buffer);
+    }
+    if (m_abort_buffer) {
+      free_MIOBuffer(m_abort_buffer);
+    }
+    if (m_buffer_send_list) {
+      delete m_buffer_send_list;
+    }
+
+    return EVENT_DONE;
+
+  default:
+    ink_assert(!"unexpected event");
+    return EVENT_DONE;
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_fail
+// next: client_fail || client_open
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_fail(int event, void * /* data ATS_UNUSED */)
+{
+  ip_port_text_buffer ipb;
+
+  Debug("log-coll", "[%d]client::client_fail", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    Debug("log-coll", "[%d]client::client_fail - SWITCH", m_id);
+    m_client_state = LOG_COLL_CLIENT_FAIL;
+
+    // avoid flooding log when host is down
+    if (m_host_is_up) {
+      Note("[log-coll] host down [%s:%u]", m_log_host->ip_addr().toString(ipb, sizeof ipb), m_log_host->m_port);
+      char msg_buf[128];
+      snprintf(msg_buf, sizeof(msg_buf), "Collation host %s:%u down",
+               m_log_host->ip_addr().toString(ipb, sizeof ipb), m_log_host->m_port
+      );
+      REC_SignalManager(400, msg_buf);
+      m_host_is_up = false;
+    }
+
+    // close our NetVConnection (do I need to delete this)
+    if (m_host_vc) {
+      m_host_vc->do_io_close(0);
+      m_host_vc = 0;
+    }
+    // flush unsent logs to orphan
+    flush_to_orphan();
+
+    // call back in collation_retry_sec seconds
+    ink_assert(m_pending_event == NULL);
+    m_pending_event = eventProcessor.schedule_in(this, HRTIME_SECONDS(Log::config->collation_retry_sec));
+
+    return EVENT_CONT;
+
+  case EVENT_INTERVAL:
+    Debug("log-coll", "[%d]client::client_fail - INTERVAL", m_id);
+    m_pending_event = NULL;
+    return client_open(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpected event");
+    return EVENT_CONT;
+
+  }
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_idle
+// next: client_send
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_idle(int event, void * /* data ATS_UNUSED */)
+{
+  Debug("log-coll", "[%d]client::client_idle", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    m_client_state = LOG_COLL_CLIENT_IDLE;
+    return EVENT_CONT;
+
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+    Debug("log-coll", "[%d]client::client_idle - EOS|ERROR", m_id);
+    return client_fail(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpcted state");
+    return EVENT_CONT;
+
+  }
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_init
+// next: client_dns
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_init(int event, void * /* data ATS_UNUSED */)
+{
+  Debug("log-coll", "[%d]client::client_init", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    m_client_state = LOG_COLL_CLIENT_INIT;
+    ink_assert(m_pending_event == NULL);
+    ink_mutex_acquire(&(mutex->the_mutex));
+    m_pending_event = eventProcessor.schedule_imm(this);
+    ink_mutex_release(&(mutex->the_mutex));
+    return EVENT_CONT;
+
+  case EVENT_IMMEDIATE:
+    // callback complete, reset m_pending_event
+    m_pending_event = NULL;
+
+    // allocate buffers
+    m_auth_buffer = new_MIOBuffer();
+    ink_assert(m_auth_buffer != NULL);
+    m_auth_reader = m_auth_buffer->alloc_reader();
+    ink_assert(m_auth_reader != NULL);
+    m_send_buffer = new_MIOBuffer();
+    ink_assert(m_send_buffer != NULL);
+    m_send_reader = m_send_buffer->alloc_reader();
+    ink_assert(m_send_reader != NULL);
+    m_abort_buffer = new_MIOBuffer();
+    ink_assert(m_abort_buffer != NULL);
+
+    // if we don't have an ip already, switch to client_dns
+    if (! m_log_host->ip_addr().isValid()) {
+      return client_dns(LOG_COLL_EVENT_SWITCH, NULL);
+    } else {
+      return client_open(LOG_COLL_EVENT_SWITCH, NULL);
+    }
+
+  default:
+    ink_assert(!"unexpected state");
+    return EVENT_CONT;
+
+  }
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_open
+// next: client_auth || client_fail
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_open(int event, NetVConnection * net_vc)
+{
+  ip_port_text_buffer ipb;
+  Debug("log-coll", "[%d]client::client_open", m_id);
+
+  switch (event) {
+  case LOG_COLL_EVENT_SWITCH:
+    Debug("log-coll", "[%d]client::client_open - SWITCH", m_id);
+    m_client_state = LOG_COLL_CLIENT_OPEN;
+
+    {
+      IpEndpoint target;
+      target.assign(m_log_host->ip_addr(), htons(m_log_host->port()));
+      ink_assert(target.isValid());
+      Action *connect_action_handle = netProcessor.connect_re(this, &target.sa);
+
+      if (connect_action_handle != ACTION_RESULT_DONE) {
+        ink_assert(!m_pending_action);
+        m_pending_action = connect_action_handle;
+      }
+    }
+
+    return EVENT_CONT;
+
+  case NET_EVENT_OPEN:
+    Debug("log-coll", "[%d]client::client_open - %s:%u", m_id,
+          m_log_host->ip_addr().toString(ipb, sizeof ipb), m_log_host->port()
+    );
+
+    // callback complete, reset m_pending_action
+    m_pending_action = NULL;
+
+    ink_assert(net_vc != NULL);
+    m_host_vc = net_vc;
+
+    // setup a client reader just for detecting a host disconnnect
+    // (iocore should call back this function with and EOS/ERROR)
+    m_abort_vio = m_host_vc->do_io_read(this, 1, m_abort_buffer);
+
+    // change states
+    return client_auth(LOG_COLL_EVENT_SWITCH, NULL);
+
+  case NET_EVENT_OPEN_FAILED:
+    Debug("log-coll", "[%d]client::client_open - OPEN_FAILED", m_id);
+    // callback complete, reset m_pending_pending action
+    m_pending_action = NULL;
+    return client_fail(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpected event");
+    return EVENT_CONT;
+
+  }
+}
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::client_send
+// next: client_fail || client_idle || client_send
+//-------------------------------------------------------------------------
+
+int
+LogCollationClientSM::client_send(int event, VIO * /* vio ATS_UNUSED */)
+{
+  ip_port_text_buffer ipb;
+
+  Debug("log-coll", "[%d]client::client_send", m_id);
+
+  switch (event) {
+  case EVENT_IMMEDIATE:
+    Debug("log-coll", "[%d]client::client_send - EVENT_IMMEDIATE", m_id);
+    // callback complete, reset m_pending_event
+    m_pending_event = NULL;
+
+    // fall through to LOG_COLL_EVENT_SWITCH
+
+  case LOG_COLL_EVENT_SWITCH:
+    {
+      Debug("log-coll", "[%d]client::client_send - SWITCH", m_id);
+      m_client_state = LOG_COLL_CLIENT_SEND;
+
+      // get a buffer off our queue
+      ink_assert(m_buffer_send_list != NULL);
+      ink_assert(m_buffer_in_iocore == NULL);
+      if ((m_buffer_in_iocore = m_buffer_send_list->get()) == NULL) {
+        return client_idle(LOG_COLL_EVENT_SWITCH, NULL);
+      }
+      Debug("log-coll", "[%d]client::client_send - send_list to m_buffer_in_iocore", m_id);
+      Debug("log-coll", "[%d]client::client_send - send_list_size(%d)", m_id, m_buffer_send_list->get_size());
+
+      // enable m_flow if we're out of work to do
+      if (m_flow == LOG_COLL_FLOW_DENY && m_buffer_send_list->get_size() == 0) {
+        Debug("log-coll", "[%d]client::client_send - m_flow = ALLOW", m_id);
+        Note("[log-coll] send-queue clear; resuming collation [%s:%u]",
+             m_log_host->ip_addr().toString(ipb, sizeof ipb), m_log_host->port());
+        m_flow = LOG_COLL_FLOW_ALLOW;
+      }
+      // future work:
+      // Wrap the buffer in a io_buffer_block and send directly to
+      // do_io_write to save a memory copy.  But for now, just
+      // write the lame way.
+
+#if defined(LOG_BUFFER_TRACKING)
+      Debug("log-buftrak", "[%d]client::client_send - network write begin", m_buffer_in_iocore->header()->id);
+#endif // defined(LOG_BUFFER_TRACKING)
+
+      // prepare to send data
+      ink_assert(m_buffer_in_iocore != NULL);
+      LogBufferHeader *log_buffer_header = m_buffer_in_iocore->header();
+      ink_assert(log_buffer_header != NULL);
+      NetMsgHeader nmh;
+      int bytes_to_send = log_buffer_header->byte_count;
+      nmh.msg_bytes = bytes_to_send;
+      // TODO: We currently don't try to make the log buffers handle little vs big endian. TS-1156.
+      //m_buffer_in_iocore->convert_to_network_order();
+
+      RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_num_sent_to_network_stat,
+                     log_buffer_header->entry_count);
+
+      RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_bytes_sent_to_network_stat,
+                     log_buffer_header->byte_count);
+
+      // copy into m_send_buffer
+      ink_assert(m_send_buffer != NULL);
+      m_send_buffer->write((char *) &nmh, sizeof(NetMsgHeader));
+      m_send_buffer->write((char *) log_buffer_header, bytes_to_send);
+      bytes_to_send += sizeof(NetMsgHeader);
+
+      // send m_send_buffer to iocore
+      Debug("log-coll", "[%d]client::client_send - do_io_write(%d)", m_id, bytes_to_send);
+      ink_assert(m_host_vc != NULL);
+      m_host_vio = m_host_vc->do_io_write(this, bytes_to_send, m_send_reader);
+      ink_assert(m_host_vio != NULL);
+    }
+    return EVENT_CONT;
+
+  case VC_EVENT_WRITE_READY:
+    Debug("log-coll", "[%d]client::client_send - WRITE_READY", m_id);
+    return EVENT_CONT;
+
+  case VC_EVENT_WRITE_COMPLETE:
+    Debug("log-coll", "[%d]client::client_send - WRITE_COMPLETE", m_id);
+
+    ink_assert(m_buffer_in_iocore != NULL);
+#if defined(LOG_BUFFER_TRACKING)
+    Debug("log-buftrak", "[%d]client::client_send - network write complete", m_buffer_in_iocore->header()->id);
+#endif // defined(LOG_BUFFER_TRACKING)
+
+    // done with the buffer, delete it
+    Debug("log-coll", "[%d]client::client_send - m_buffer_in_iocore[%p] to delete_list", m_id, m_buffer_in_iocore);
+    LogBuffer::destroy(m_buffer_in_iocore);
+    m_buffer_in_iocore = NULL;
+
+    // switch back to client_send
+    return client_send(LOG_COLL_EVENT_SWITCH, NULL);
+
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+    {
+      Debug("log-coll", "[%d]client::client_send - EOS|ERROR", m_id);
+      int64_t read_avail = m_send_reader->read_avail();
+
+      if (read_avail > 0) {
+        Debug("log-coll", "[%d]client::client_send - consuming unsent data", m_id);
+        m_send_reader->consume(read_avail);
+      }
+
+      return client_fail(LOG_COLL_EVENT_SWITCH, NULL);
+    }
+
+  default:
+    Debug("log-coll", "[%d]client::client_send - default", m_id);
+    return client_fail(LOG_COLL_EVENT_SWITCH, NULL);
+
+  }
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// support functions
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM::flush_to_orphan
+//-------------------------------------------------------------------------
+void
+LogCollationClientSM::flush_to_orphan()
+{
+  Debug("log-coll", "[%d]client::flush_to_orphan", m_id);
+
+  // if in middle of a write, flush buffer_in_iocore to orphan
+  if (m_buffer_in_iocore != NULL) {
+    Debug("log-coll", "[%d]client::flush_to_orphan - m_buffer_in_iocore to oprhan", m_id);
+    // TODO: We currently don't try to make the log buffers handle little vs big endian. TS-1156.
+    // m_buffer_in_iocore->convert_to_host_order();
+    m_log_host->orphan_write_and_try_delete(m_buffer_in_iocore);
+    m_buffer_in_iocore = NULL;
+  }
+  // flush buffers in send_list to orphan
+  LogBuffer *log_buffer;
+  ink_assert(m_buffer_send_list != NULL);
+  while ((log_buffer = m_buffer_send_list->get()) != NULL) {
+    Debug("log-coll", "[%d]client::flush_to_orphan - send_list to orphan", m_id);
+    m_log_host->orphan_write_and_try_delete(log_buffer);
+  }
+
+  // Now send_list is empty, let's update m_flow to ALLOW status
+  Debug("log-coll", "[%d]client::client_send - m_flow = ALLOW", m_id);
+  m_flow = LOG_COLL_FLOW_ALLOW;
+}
diff --git a/proxy/logging/LogCollationClientSM.h b/proxy/logging/LogCollationClientSM.h
new file mode 100644
index 00000000..291fe028
--- /dev/null
+++ b/proxy/logging/LogCollationClientSM.h
@@ -0,0 +1,125 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_COLLATION_CLIENT_SM_H
+#define LOG_COLLATION_CLIENT_SM_H
+
+//-------------------------------------------------------------------------
+// includes
+//-------------------------------------------------------------------------
+#include "P_HostDB.h"
+#include "P_Net.h"
+#include "LogCollationBase.h"
+
+//-------------------------------------------------------------------------
+// pre-declarations
+//-------------------------------------------------------------------------
+
+class LogBuffer;
+class LogHost;
+
+//-------------------------------------------------------------------------
+// LogCollationClientSM
+//-------------------------------------------------------------------------
+
+class LogCollationClientSM:public LogCollationBase, public Continuation
+{
+
+public:
+
+  LogCollationClientSM(LogHost * log_host);
+  ~LogCollationClientSM();
+
+  int client_handler(int event, void *data);
+
+  // public interface (for LogFile)
+  int send(LogBuffer * log_buffer);
+
+private:
+
+  enum ClientState
+  {
+    LOG_COLL_CLIENT_AUTH,
+    LOG_COLL_CLIENT_DNS,
+    LOG_COLL_CLIENT_DONE,
+    LOG_COLL_CLIENT_FAIL,
+    LOG_COLL_CLIENT_IDLE,
+    LOG_COLL_CLIENT_INIT,
+    LOG_COLL_CLIENT_OPEN,
+    LOG_COLL_CLIENT_SEND
+  };
+
+  enum ClientFlowControl
+  {
+    LOG_COLL_FLOW_ALLOW,
+    LOG_COLL_FLOW_DENY
+  };
+
+private:
+
+  // client states
+  int client_auth(int event, VIO * vio);
+  int client_dns(int event, HostDBInfo * hostdb_info);
+  int client_done(int event, void *data);
+  int client_fail(int event, void *data);
+  int client_idle(int event, void *data);
+  int client_init(int event, void *data);
+  int client_open(int event, NetVConnection * net_vc);
+  int client_send(int event, VIO * vio);
+  ClientState m_client_state;
+
+  // support functions
+  void flush_to_orphan();
+
+  // iocore stuff (two buffers to avoid races)
+  NetVConnection *m_host_vc;
+  VIO *m_host_vio;
+  MIOBuffer *m_auth_buffer;
+  IOBufferReader *m_auth_reader;
+  MIOBuffer *m_send_buffer;
+  IOBufferReader *m_send_reader;
+  Action *m_pending_action;
+  Event *m_pending_event;
+
+  // to detect server closes (there's got to be a better way to do this)
+  VIO *m_abort_vio;
+  MIOBuffer *m_abort_buffer;
+  bool m_host_is_up;
+
+  // send stuff
+  LogBufferList *m_buffer_send_list;
+  LogBuffer *m_buffer_in_iocore;
+  ClientFlowControl m_flow;
+
+  // back pointer to LogHost container
+  LogHost *m_log_host;
+
+  // debugging
+  static int ID;
+  int m_id;
+
+};
+
+typedef int (LogCollationClientSM::*LogCollationClientSMHandler) (int, void *);
+
+#endif // LOG_COLLATION_CLIENT_SM_H
diff --git a/proxy/logging/LogCollationHostSM.cc b/proxy/logging/LogCollationHostSM.cc
new file mode 100644
index 00000000..498018c0
--- /dev/null
+++ b/proxy/logging/LogCollationHostSM.cc
@@ -0,0 +1,527 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+//-------------------------------------------------------------------------
+// include files
+//-------------------------------------------------------------------------
+
+#include "ink_config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "P_EventSystem.h"
+#include "P_Net.h"
+
+#include "LogUtils.h"
+#include "LogSock.h"
+#include "LogField.h"
+#include "LogFile.h"
+#include "LogFormat.h"
+#include "LogBuffer.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "Log.h"
+
+#include "LogCollationHostSM.h"
+
+//-------------------------------------------------------------------------
+// statics
+//-------------------------------------------------------------------------
+
+int
+  LogCollationHostSM::ID = 0;
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::LogCollationHostSM
+//-------------------------------------------------------------------------
+
+LogCollationHostSM::LogCollationHostSM(NetVConnection * client_vc):
+Continuation(new_ProxyMutex()),
+m_client_vc(client_vc),
+m_client_vio(NULL),
+m_client_buffer(NULL),
+m_client_reader(NULL),
+m_pending_event(NULL),
+m_read_buffer(NULL), m_read_bytes_wanted(0), m_read_bytes_received(0), m_client_ip(0), m_client_port(0), m_id(ID++)
+{
+
+  Debug("log-coll", "[%d]host::constructor", m_id);
+
+  ink_assert(m_client_vc != NULL);
+
+  // get client info
+  m_client_ip = m_client_vc->get_remote_ip();
+  m_client_port = m_client_vc->get_remote_port();
+  Note("[log-coll] client connected [%d.%d.%d.%d:%d]",
+       ((unsigned char *) (&m_client_ip))[0],
+       ((unsigned char *) (&m_client_ip))[1],
+       ((unsigned char *) (&m_client_ip))[2], ((unsigned char *) (&m_client_ip))[3], m_client_port);
+
+  SET_HANDLER((LogCollationHostSMHandler) & LogCollationHostSM::host_handler);
+  host_init(LOG_COLL_EVENT_SWITCH, NULL);
+
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// handlers
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::host_handler
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::host_handler(int event, void *data)
+{
+
+  switch (m_host_state) {
+  case LOG_COLL_HOST_AUTH:
+    return host_auth(event, data);
+  case LOG_COLL_HOST_DONE:
+    return host_done(event, data);
+  case LOG_COLL_HOST_INIT:
+    return host_init(event, data);
+  case LOG_COLL_HOST_RECV:
+    return host_recv(event, data);
+  default:
+    ink_assert(!"unexpected state");
+    return EVENT_CONT;
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::read_handler
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::read_handler(int event, void *data)
+{
+
+  switch (m_read_state) {
+  case LOG_COLL_READ_BODY:
+    return read_body(event, (VIO *) data);
+  case LOG_COLL_READ_HDR:
+    return read_hdr(event, (VIO *) data);
+  default:
+    ink_assert(!"unexpected state");
+    return EVENT_CONT;
+  }
+
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// host states
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::host_auth
+// next:  host_done || host_recv
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::host_auth(int event, void * /* data ATS_UNUSED */)
+{
+  Debug("log-coll", "[%d]host::host_auth", m_id);
+
+  switch (event) {
+
+  case LOG_COLL_EVENT_SWITCH:
+    Debug("log-coll", "[%d]host::host_auth - SWITCH", m_id);
+    m_host_state = LOG_COLL_HOST_AUTH;
+    return read_start();
+
+  case LOG_COLL_EVENT_READ_COMPLETE:
+    Debug("log-coll", "[%d]host::host_auth - READ_COMPLETE", m_id);
+    {
+      // compare authorization secrets
+      ink_assert(m_read_buffer != NULL);
+      int diff = strncmp(m_read_buffer, Log::config->collation_secret,
+                         m_read_bytes_received);
+      delete[]m_read_buffer;
+      m_read_buffer = 0;
+      if (!diff) {
+        Debug("log-coll", "[%d]host::host_auth - authenticated!", m_id);
+        return host_recv(LOG_COLL_EVENT_SWITCH, NULL);
+      } else {
+        Debug("log-coll", "[%d]host::host_auth - authenticated failed!", m_id);
+        Note("[log-coll] authentication failed [%d.%d.%d.%d:%d]",
+             ((unsigned char *) (&m_client_ip))[0],
+             ((unsigned char *) (&m_client_ip))[1],
+             ((unsigned char *) (&m_client_ip))[2], ((unsigned char *) (&m_client_ip))[3], m_client_port);
+        return host_done(LOG_COLL_EVENT_SWITCH, NULL);
+      }
+
+    }
+
+  case LOG_COLL_EVENT_ERROR:
+    Debug("log-coll", "[%d]host::host_auth - ERROR", m_id);
+    return host_done(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpected state");
+    return EVENT_CONT;
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::host_done
+// next: none
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::host_done(int /* event ATS_UNUSED */, void * /* data ATS_UNUSED */)
+{
+  Debug("log-coll", "[%d]host::host_done", m_id);
+
+  // close connections
+  if (m_client_vc) {
+    Debug("log-coll", "[%d]host::host_done - disconnecting!", m_id);
+    m_client_vc->do_io_close();
+    m_client_vc = 0;
+    Note("[log-coll] client disconnected [%d.%d.%d.%d:%d]",
+         ((unsigned char *) (&m_client_ip))[0],
+         ((unsigned char *) (&m_client_ip))[1],
+         ((unsigned char *) (&m_client_ip))[2], ((unsigned char *) (&m_client_ip))[3], m_client_port);
+  }
+  // free memory
+  if (m_client_buffer) {
+    if (m_client_reader) {
+      m_client_buffer->dealloc_reader(m_client_reader);
+    }
+    free_MIOBuffer(m_client_buffer);
+  }
+  // delete this state machine and return
+  delete this;
+  return EVENT_DONE;
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::host_init
+// next: host_auth || host_done
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::host_init(int event, void * /* data ATS_UNUSED */)
+{
+  Debug("log-coll", "[%d]host::host_init", m_id);
+
+  switch (event) {
+
+  case LOG_COLL_EVENT_SWITCH:
+    m_host_state = LOG_COLL_HOST_INIT;
+    m_pending_event = eventProcessor.schedule_imm(this);
+    return EVENT_CONT;
+
+  case EVENT_IMMEDIATE:
+    // allocate memory
+    m_client_buffer = new_MIOBuffer();
+    ink_assert(m_client_buffer != NULL);
+    m_client_reader = m_client_buffer->alloc_reader();
+    ink_assert(m_client_reader != NULL);
+    return host_auth(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpected state");
+    return EVENT_DONE;
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::host_recv
+// next: host_done || host_recv
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::host_recv(int event, void * /* data ATS_UNUSED */)
+{
+  Debug("log-coll", "[%d]host::host_recv", m_id);
+
+  switch (event) {
+
+  case LOG_COLL_EVENT_SWITCH:
+    Debug("log-coll", "[%d]host::host_recv - SWITCH", m_id);
+    m_host_state = LOG_COLL_HOST_RECV;
+    return read_start();
+
+  case LOG_COLL_EVENT_READ_COMPLETE:
+    Debug("log-coll", "[%d]host::host_recv - READ_COMPLETE", m_id);
+    {
+      // grab the log_buffer
+      LogBufferHeader *log_buffer_header;
+      LogBuffer *log_buffer;
+      LogFormat *log_format;
+      LogObject *log_object;
+      unsigned version;
+
+      ink_assert(m_read_buffer != NULL);
+      ink_assert(m_read_bytes_received >= (int64_t)sizeof(LogBufferHeader));
+      log_buffer_header = (LogBufferHeader *) m_read_buffer;
+
+      // convert the buffer we just received to host order
+      // TODO: We currently don't try to make the log buffers handle little vs big endian. TS-1156.
+      // LogBuffer::convert_to_host_order(log_buffer_header);
+
+      version = log_buffer_header->version;
+      if (version != LOG_SEGMENT_VERSION) {
+        Note("[log-coll] invalid LogBuffer received; invalid version - "
+             "buffer = %u, current = %u", version, LOG_SEGMENT_VERSION);
+        delete[]m_read_buffer;
+
+      } else {
+        log_object = Log::match_logobject(log_buffer_header);
+        if (!log_object) {
+          Note("[log-coll] LogObject not found with fieldlist id; " "writing LogBuffer to scrap file");
+          log_object = Log::global_scrap_object;
+        }
+        log_format = log_object->m_format;
+        Debug("log-coll", "[%d]host::host_recv - using format '%s'", m_id, log_format->name());
+
+        // make a new LogBuffer (log_buffer_header plus subsequent
+        // buffer already converted to host order) and add it to the
+        // object's flush queue
+        //
+        log_buffer = new LogBuffer(log_object, log_buffer_header);
+
+	RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_num_received_from_network_stat,
+                       log_buffer_header->entry_count);
+
+	RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_bytes_received_from_network_stat,
+                       log_buffer_header->byte_count);
+
+        int idx = log_object->add_to_flush_queue(log_buffer);
+        Log::preproc_notify[idx].signal();
+      }
+
+#if defined(LOG_BUFFER_TRACKING)
+      Debug("log-buftrak", "[%d]host::host_recv - network read complete", log_buffer_header->id);
+#endif // defined(LOG_BUFFER_TRACKING)
+
+      // get ready for next read (memory may not be freed!!!)
+      m_read_buffer = 0;
+
+      return host_recv(LOG_COLL_EVENT_SWITCH, NULL);
+
+    }
+
+  case LOG_COLL_EVENT_ERROR:
+    Debug("log-coll", "[%d]host::host_recv - ERROR", m_id);
+    return host_done(LOG_COLL_EVENT_SWITCH, NULL);
+
+  default:
+    ink_assert(!"unexpected state");
+    return EVENT_DONE;
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+//
+// read states
+//
+//-------------------------------------------------------------------------
+//-------------------------------------------------------------------------
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::read_start
+// next: read_hdr
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::read_start()
+{
+
+  Debug("log-coll", "[%d]host::read_start", m_id);
+
+  SET_HANDLER((LogCollationHostSMHandler) & LogCollationHostSM::read_handler);
+  if (m_read_buffer) {
+    ink_assert(!"m_read_buffer still points to something, doh!");
+  }
+  return read_hdr(LOG_COLL_EVENT_SWITCH, NULL);
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::read_hdr
+// next: read_body || read_done
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::read_hdr(int event, VIO * vio)
+{
+
+  Debug("log-coll", "[%d]host::read_hdr", m_id);
+
+  switch (event) {
+
+  case LOG_COLL_EVENT_SWITCH:
+    Debug("log-coll", "[%d]host:read_hdr - SWITCH", m_id);
+    m_read_state = LOG_COLL_READ_HDR;
+
+    m_read_bytes_wanted = sizeof(NetMsgHeader);
+    m_read_bytes_received = 0;
+    m_read_buffer = (char *) &m_net_msg_header;
+    ink_assert(m_client_vc != NULL);
+    Debug("log-coll", "[%d]host:read_hdr - do_io_read(%" PRId64")", m_id, m_read_bytes_wanted);
+    m_client_vio = m_client_vc->do_io_read(this, m_read_bytes_wanted, m_client_buffer);
+    ink_assert(m_client_vio != NULL);
+    return EVENT_CONT;
+
+  case VC_EVENT_IMMEDIATE:
+    Debug("log-coll", "[%d]host::read_hdr - IMMEDIATE", m_id);
+    return EVENT_CONT;
+
+  case VC_EVENT_READ_READY:
+    Debug("log-coll", "[%d]host::read_hdr - READ_READY", m_id);
+    read_partial(vio);
+    return EVENT_CONT;
+
+  case VC_EVENT_READ_COMPLETE:
+    Debug("log-coll", "[%d]host::read_hdr - READ_COMPLETE", m_id);
+    read_partial(vio);
+    ink_assert(m_read_bytes_wanted == m_read_bytes_received);
+    return read_body(LOG_COLL_EVENT_SWITCH, NULL);
+
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+    Debug("log-coll", "[%d]host::read_hdr - EOS|ERROR", m_id);
+    return read_done(LOG_COLL_EVENT_ERROR, NULL);
+
+  default:
+    Debug("log-coll", "[%d]host::read_hdr - default %d", m_id, event);
+    return read_done(LOG_COLL_EVENT_ERROR, NULL);
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::read_body
+// next: read_body || read_done
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::read_body(int event, VIO * vio)
+{
+
+  Debug("log-coll", "[%d]host::read_body", m_id);
+
+  switch (event) {
+
+  case LOG_COLL_EVENT_SWITCH:
+    Debug("log-coll", "[%d]host:read_body - SWITCH", m_id);
+    m_read_state = LOG_COLL_READ_BODY;
+
+    m_read_bytes_wanted = m_net_msg_header.msg_bytes;
+    ink_assert(m_read_bytes_wanted > 0);
+    m_read_bytes_received = 0;
+    m_read_buffer = new char[m_read_bytes_wanted];
+    ink_assert(m_read_buffer != NULL);
+    ink_assert(m_client_vc != NULL);
+    Debug("log-coll", "[%d]host:read_body - do_io_read(%" PRId64")", m_id, m_read_bytes_wanted);
+    m_client_vio = m_client_vc->do_io_read(this, m_read_bytes_wanted, m_client_buffer);
+    ink_assert(m_client_vio != NULL);
+    return EVENT_CONT;
+
+  case VC_EVENT_IMMEDIATE:
+    Debug("log-coll", "[%d]host::read_body - IMMEDIATE", m_id);
+    return EVENT_CONT;
+
+  case VC_EVENT_READ_READY:
+    Debug("log-coll", "[%d]host::read_body - READ_READY", m_id);
+    read_partial(vio);
+    return EVENT_CONT;
+
+  case VC_EVENT_READ_COMPLETE:
+    Debug("log-coll", "[%d]host::read_body - READ_COMPLETE", m_id);
+    read_partial(vio);
+    ink_assert(m_read_bytes_wanted == m_read_bytes_received);
+    return read_done(LOG_COLL_EVENT_READ_COMPLETE, NULL);
+
+  case VC_EVENT_EOS:
+  case VC_EVENT_ERROR:
+    Debug("log-coll", "[%d]host::read_body - EOS|ERROR", m_id);
+    return read_done(LOG_COLL_EVENT_ERROR, NULL);
+
+  default:
+    Debug("log-coll", "[%d]host::read_body - default %d", m_id, event);
+    return read_done(LOG_COLL_EVENT_ERROR, NULL);
+
+  }
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::read_done
+// next: give control back to host state-machine
+//-------------------------------------------------------------------------
+
+int
+LogCollationHostSM::read_done(int event, void * /* data ATS_UNUSED */)
+{
+  SET_HANDLER((LogCollationHostSMHandler) & LogCollationHostSM::host_handler);
+  return host_handler(event, NULL);
+
+}
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM::read_partial
+//-------------------------------------------------------------------------
+
+void
+LogCollationHostSM::read_partial(VIO * vio)
+{
+
+  // checks
+  ink_assert(vio != NULL);
+  ink_assert(vio->vc_server == m_client_vc);
+  ink_assert(m_client_buffer != NULL);
+  ink_assert(m_client_reader != NULL);
+
+  // careful not to read more than we have memory for
+  char *p = &(m_read_buffer[m_read_bytes_received]);
+  int64_t bytes_wanted_now = m_read_bytes_wanted - m_read_bytes_received;
+  int64_t bytes_received_now = m_client_reader->read(p, bytes_wanted_now);
+
+  m_read_bytes_received += bytes_received_now;
+}
diff --git a/proxy/logging/LogCollationHostSM.h b/proxy/logging/LogCollationHostSM.h
new file mode 100644
index 00000000..e739ec44
--- /dev/null
+++ b/proxy/logging/LogCollationHostSM.h
@@ -0,0 +1,117 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_COLLATION_HOST_SM_H
+#define LOG_COLLATION_HOST_SM_H
+
+//-------------------------------------------------------------------------
+// includes
+//-------------------------------------------------------------------------
+
+#include "P_EventSystem.h"
+#include "LogCollationBase.h"
+
+//-------------------------------------------------------------------------
+// pre-declarations
+//-------------------------------------------------------------------------
+
+struct LogBufferHeader;
+
+//-------------------------------------------------------------------------
+// LogCollationHostSM
+//-------------------------------------------------------------------------
+
+class LogCollationHostSM:public LogCollationBase, public Continuation
+{
+
+public:
+
+  LogCollationHostSM(NetVConnection * client_vc);
+
+  // handlers
+  int host_handler(int event, void *data);
+  int read_handler(int event, void *data);
+
+private:
+
+  enum HostState
+  {
+    LOG_COLL_HOST_NULL,
+    LOG_COLL_HOST_AUTH,
+    LOG_COLL_HOST_DONE,
+    LOG_COLL_HOST_INIT,
+    LOG_COLL_HOST_RECV
+  };
+
+  enum ReadState
+  {
+    LOG_COLL_READ_NULL,
+    LOG_COLL_READ_BODY,
+    LOG_COLL_READ_HDR
+  };
+
+private:
+
+  // host states
+  int host_init(int event, void *data);
+  int host_auth(int event, void *data);
+  int host_recv(int event, void *data);
+  int host_done(int event, void *data);
+  HostState m_host_state;
+
+  // read states
+  int read_hdr(int event, VIO * vio);
+  int read_body(int event, VIO * vio);
+  int read_done(int event, void *data);
+  int read_start();
+  ReadState m_read_state;
+
+  // helper for read states
+  void read_partial(VIO * vio);
+
+  // iocore stuff
+  NetVConnection *m_client_vc;
+  VIO *m_client_vio;
+  MIOBuffer *m_client_buffer;
+  IOBufferReader *m_client_reader;
+  Event *m_pending_event;
+
+  // read_state stuff
+  NetMsgHeader m_net_msg_header;
+  char *m_read_buffer;
+  int64_t m_read_bytes_wanted;
+  int64_t m_read_bytes_received;
+
+  // client info
+  int m_client_ip;
+  int m_client_port;
+
+  // debugging
+  static int ID;
+  int m_id;
+
+};
+
+typedef int (LogCollationHostSM::*LogCollationHostSMHandler) (int, void *);
+
+#endif // LOG_COLLATION_HOST_SM_H
diff --git a/proxy/logging/LogConfig.cc b/proxy/logging/LogConfig.cc
new file mode 100644
index 00000000..0818f5dd
--- /dev/null
+++ b/proxy/logging/LogConfig.cc
@@ -0,0 +1,2279 @@
+/** @file
+
+  This file implements the LogConfig object.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "I_Layout.h"
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#include "ink_platform.h"
+#include "ink_file.h"
+
+#include "Main.h"
+#include "List.h"
+#include "InkXml.h"
+
+#include "Log.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogFile.h"
+#include "LogBuffer.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogUtils.h"
+#include "SimpleTokenizer.h"
+
+#include "LogCollationAccept.h"
+#include "LogPredefined.h"
+
+#define DISK_IS_CONFIG_FULL_MESSAGE \
+    "Access logging to local log directory suspended - " \
+    "configured space allocation exhausted."
+#define DISK_IS_ACTUAL_FULL_MESSAGE \
+    "Access logging to local log directory suspended - " \
+    "no more space on the logging partition."
+#define DISK_IS_CONFIG_LOW_MESSAGE \
+    "Access logging to local log directory suspended - " \
+    "configured space allocation almost exhausted."
+#define DISK_IS_ACTUAL_LOW_MESSAGE \
+    "Access logging to local log directory suspended - partition space is low."
+#define DUP_FORMAT_MESSAGE \
+    "Format named %s already exists; duplicate format names are not allowed."
+
+#define PARTITION_HEADROOM_MB 	10
+
+void
+LogConfig::setup_default_values()
+{
+  const unsigned int bufSize = 512;
+  char name[bufSize];
+  if (!gethostname(name, bufSize)) {
+    ink_strlcpy(name, "unknown_host_name", sizeof(name));
+  }
+  hostname = ats_strdup(name);
+
+  log_buffer_size = (int) (10 * LOG_KILOBYTE);
+  max_secs_per_buffer = 5;
+  max_space_mb_for_logs = 100;
+  max_space_mb_for_orphan_logs = 25;
+  max_space_mb_headroom = 10;
+  logfile_perm = 0644;
+  logfile_dir = ats_strdup(".");
+
+  separate_icp_logs = 1;
+  separate_host_logs = false;
+
+  squid_log_enabled = true;
+  squid_log_is_ascii = true;
+  squid_log_name = ats_strdup("squid");
+  squid_log_header = NULL;
+
+  common_log_enabled = false;
+  common_log_is_ascii = true;
+  common_log_name = ats_strdup("common");
+  common_log_header = NULL;
+
+  extended_log_enabled = false;
+  extended_log_is_ascii = true;
+  extended_log_name = ats_strdup("extended");
+  extended_log_header = NULL;
+
+  extended2_log_enabled = false;
+  extended2_log_is_ascii = true;
+  extended2_log_name = ats_strdup("extended2");
+  extended2_log_header = NULL;
+
+  collation_mode = Log::NO_COLLATION;
+  collation_host = ats_strdup("none");
+  collation_port = 0;
+  collation_host_tagged = false;
+  collation_preproc_threads = 1;
+  collation_secret = ats_strdup("foobar");
+  collation_retry_sec = 0;
+  collation_max_send_buffers = 0;
+
+  rolling_enabled = Log::NO_ROLLING;
+  rolling_interval_sec = 86400; // 24 hours
+  rolling_offset_hr = 0;
+  rolling_size_mb = 10;
+  auto_delete_rolled_files = true;
+  roll_log_files_now = false;
+
+  custom_logs_enabled = false;
+  xml_config_file = ats_strdup("logs_xml.config");
+  hosts_config_file = ats_strdup("log_hosts.config");
+
+/* The default values for the search log                         */
+
+  search_log_enabled = false;
+/* Comma separated filter names. These Filetrs are defined in    */
+/* log_xml.config file. One such filter defines to reject URLs   */
+/* with .gif extension. These filters are added to search log    */
+/* object.                                                       */
+  search_log_filters = NULL;
+  search_rolling_interval_sec = 86400;  // 24 hours
+  search_server_ip_addr = 0;
+  search_server_port = 8080;
+  search_top_sites = 100;
+/* Comma separated filter names. These Filetrs are defined in    */
+/* records.config or thru UI. These are applied to the search log*/
+/* while parsing to generate top 'n' site summary file. The URLs */
+/* containing these strings will not be parsed.                  */
+  search_url_filter = NULL;
+/* Logging system captures all the URLs in this log file.        */
+  search_log_file_one = ats_strdup("search_log1");
+/* Logging system captures only cache miss URLs to this log file.*/
+  search_log_file_two = ats_strdup("search_log2");
+
+  sampling_frequency = 1;
+  file_stat_frequency = 16;
+  space_used_frequency = 900;
+
+  use_orphan_log_space_value = false;
+
+  ascii_buffer_size = 4 * 9216;
+  max_line_size = 9216;         // size of pipe buffer for SunOS 5.6
+}
+
+void *
+LogConfig::reconfigure_mgmt_variables(void * /* token ATS_UNUSED */, char * /* data_raw ATS_UNUSED */,
+                                      int /* data_len ATS_UNUSED */)
+{
+  Note("[TrafficServer:LogConfig] : Roll_Log_Files event received. rolling now");
+  Log::config->roll_log_files_now = true;
+  return NULL;
+}
+
+void
+LogConfig::read_configuration_variables()
+{
+  int val;
+  char *ptr;
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.log_buffer_size");
+  if (val > 0) {
+    log_buffer_size = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.max_secs_per_buffer");
+  if (val > 0) {
+    max_secs_per_buffer = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.max_space_mb_for_logs");
+  if (val > 0) {
+    max_space_mb_for_logs = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.max_space_mb_for_orphan_logs");
+  if (val > 0) {
+    max_space_mb_for_orphan_logs = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.max_space_mb_headroom");
+  if (val > 0) {
+    max_space_mb_headroom = val;
+  }
+
+  // TODO: We should mover this "parser" to lib/ts
+  ptr = REC_ConfigReadString("proxy.config.log.logfile_perm");
+  if (ptr && strlen(ptr) == 9) {
+    logfile_perm = 0;
+    char *c = ptr;
+    if (*c == 'r')
+      logfile_perm |= S_IRUSR;
+    c++;
+    if (*c == 'w')
+      logfile_perm |= S_IWUSR;
+    c++;
+    if (*c == 'x')
+      logfile_perm |= S_IXUSR;
+    c++;
+    if (*c == 'r')
+      logfile_perm |= S_IRGRP;
+    c++;
+    if (*c == 'w')
+      logfile_perm |= S_IWGRP;
+    c++;
+    if (*c == 'x')
+      logfile_perm |= S_IXGRP;
+    c++;
+    if (*c == 'r')
+      logfile_perm |= S_IROTH;
+    c++;
+    if (*c == 'w')
+      logfile_perm |= S_IWOTH;
+    c++;
+    if (*c == 'x')
+      logfile_perm |= S_IXOTH;
+    ats_free(ptr);
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.hostname");
+  if (ptr != NULL) {
+    ats_free(hostname);
+    hostname = ptr;
+  }
+
+  ats_free(logfile_dir);
+  logfile_dir = RecConfigReadLogDir();
+
+  if (access(logfile_dir, R_OK | W_OK | X_OK) == -1) {
+    // Try 'system_root_dir/var/log/trafficserver' directory
+    fprintf(stderr,"unable to access log directory '%s': %d, %s\n",
+            logfile_dir, errno, strerror(errno));
+    fprintf(stderr,"please set 'proxy.config.log.logfile_dir'\n");
+    _exit(1);
+  }
+
+  //
+  // for each predefined logging format, we need to know:
+  //   - whether logging in that format is enabled
+  //   - if we're logging to a file, what the name and format (ASCII,
+  //     BINARY) are
+  //   - what header should be written down at the start of each file for
+  //     this format
+  // this is accomplished with four config variables per format:
+  //   "proxy.config.log.<format>_log_enabled" INT
+  //   "proxy.config.log.<format>_log_is_ascii" INT
+  //   "proxy.config.log.<format>_log_name" STRING
+  //   "proxy.config.log.<format>_log_header" STRING
+  //
+
+
+  // SQUID
+  val = (int) REC_ConfigReadInteger("proxy.config.log.squid_log_enabled");
+  squid_log_enabled = (val > 0);
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.squid_log_is_ascii");
+  squid_log_is_ascii = (val > 0);
+
+  ptr = REC_ConfigReadString("proxy.config.log.squid_log_name");
+  if (ptr != NULL) {
+    ats_free(squid_log_name);
+    squid_log_name = ptr;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.squid_log_header");
+  if (ptr != NULL) {
+    ats_free(squid_log_header);
+    squid_log_header = ptr;
+  }
+
+  // COMMON
+  val = (int) REC_ConfigReadInteger("proxy.config.log.common_log_enabled");
+  common_log_enabled = (val > 0);
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.common_log_is_ascii");
+  common_log_is_ascii = (val > 0);
+
+  ptr = REC_ConfigReadString("proxy.config.log.common_log_name");
+  if (ptr != NULL) {
+    ats_free(common_log_name);
+    common_log_name = ptr;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.common_log_header");
+  if (ptr != NULL) {
+    ats_free(common_log_header);
+    common_log_header = ptr;
+  }
+
+  // EXTENDED
+  val = (int) REC_ConfigReadInteger("proxy.config.log.extended_log_enabled");
+  extended_log_enabled = (val > 0);
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.extended_log_is_ascii");
+  extended_log_is_ascii = (val > 0);
+
+  ptr = REC_ConfigReadString("proxy.config.log.extended_log_name");
+  if (ptr != NULL) {
+    ats_free(extended_log_name);
+    extended_log_name = ptr;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.extended_log_header");
+  if (ptr != NULL) {
+    ats_free(extended_log_header);
+    extended_log_header = ptr;
+  }
+
+  // EXTENDED2
+  val = (int) REC_ConfigReadInteger("proxy.config.log.extended2_log_enabled");
+  extended2_log_enabled = (val > 0);
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.extended2_log_is_ascii");
+  extended2_log_is_ascii = (val > 0);
+
+  ptr = REC_ConfigReadString("proxy.config.log.extended2_log_name");
+  if (ptr != NULL) {
+    ats_free(extended2_log_name);
+    extended2_log_name = ptr;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.extended2_log_header");
+  if (ptr != NULL) {
+    ats_free(extended2_log_header);
+    extended2_log_header = ptr;
+  }
+
+
+  // SPLITTING
+  // 0 means no splitting
+  // 1 means splitting
+  // for icp
+  //   -1 means filter out (do not log and do not create split file)
+  val = (int) REC_ConfigReadInteger("proxy.config.log.separate_icp_logs");
+  separate_icp_logs = (val > 0);
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.separate_host_logs");
+  separate_host_logs = (val > 0);
+
+
+  // COLLATION
+  val = (int) REC_ConfigReadInteger("proxy.local.log.collation_mode");
+  // do not restrict value so that error message is logged if
+  // collation_mode is out of range
+  collation_mode = val;
+
+  ptr = REC_ConfigReadString("proxy.config.log.collation_host");
+  if (ptr != NULL) {
+    ats_free(collation_host);
+    collation_host = ptr;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.collation_port");
+  if (val >= 0) {
+    collation_port = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.collation_host_tagged");
+  collation_host_tagged = (val > 0);
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.collation_preproc_threads");
+  if (val > 0 && val <= 128) {
+    collation_preproc_threads = val;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.collation_secret");
+  if (ptr != NULL) {
+    ats_free(collation_secret);
+    collation_secret = ptr;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.collation_retry_sec");
+  if (val >= 0) {
+    collation_retry_sec = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.collation_max_send_buffers");
+  if (val >= 0) {
+    collation_max_send_buffers = val;
+  }
+
+
+  // ROLLING
+
+  // we don't check for valid values of rolling_enabled, rolling_interval_sec,
+  // rolling_offset_hr, or rolling_size_mb because the LogObject takes care of this
+  //
+  rolling_interval_sec = (int) REC_ConfigReadInteger("proxy.config.log.rolling_interval_sec");
+  rolling_offset_hr = (int) REC_ConfigReadInteger("proxy.config.log.rolling_offset_hr");
+  rolling_size_mb = (int) REC_ConfigReadInteger("proxy.config.log.rolling_size_mb");
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.rolling_enabled");
+  if (LogRollingEnabledIsValid(val)) {
+    rolling_enabled = (Log::RollingEnabledValues)val;
+  } else {
+    Warning("invalid value '%d' for '%s', disabling log rolling", val, "proxy.config.log.rolling_enabled");
+    rolling_enabled = Log::NO_ROLLING;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.auto_delete_rolled_files");
+  auto_delete_rolled_files = (val > 0);
+
+  // CUSTOM LOGGING
+  val = (int) REC_ConfigReadInteger("proxy.config.log.custom_logs_enabled");
+  custom_logs_enabled = (val > 0);
+
+  ptr = REC_ConfigReadString("proxy.config.log.xml_config_file");
+  if (ptr != NULL) {
+    ats_free(xml_config_file);
+    xml_config_file = ptr;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.hosts_config_file");
+  if (ptr != NULL) {
+    ats_free(hosts_config_file);
+    hosts_config_file = ptr;
+  }
+
+  // PERFORMANCE
+  val = (int) REC_ConfigReadInteger("proxy.config.log.sampling_frequency");
+  if (val > 0) {
+    sampling_frequency = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.file_stat_frequency");
+  if (val > 0) {
+    file_stat_frequency = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.space_used_frequency");
+  if (val > 0) {
+    space_used_frequency = val;
+  }
+
+  // ASCII BUFFER
+  val = (int) REC_ConfigReadInteger("proxy.config.log.ascii_buffer_size");
+  if (val > 0) {
+    ascii_buffer_size = val;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.max_line_size");
+  if (val > 0) {
+    max_line_size = val;
+  }
+
+/* The following variables are initialized after reading the     */
+/* variable values from records.config                           */
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.search_log_enabled");
+  if (Log::logging_mode == Log::LOG_MODE_FULL)
+    search_log_enabled = (val > 0);
+
+/*                                                               */
+/* The following collects the filter names to be added to search */
+/* log object. User can define the filter to exclude URLs with   */
+/* certain file extensions from being logged.                    */
+/*                                                               */
+  ptr = REC_ConfigReadString("proxy.config.log.search_log_filters");
+  if (ptr != NULL) {
+    search_log_filters = ptr;
+  }
+
+/*                                                               */
+/* This filter information is used while parsing the search log  */
+/* to generate top 'n' site sorted URL summary file.             */
+/* This log file contains top 'n' number of frequently accessed  */
+/* sites. This file is sent to search server mentioned by the    */
+/* pair ip-address & port.                                       */
+/*                                                               */
+  ptr = REC_ConfigReadString("proxy.config.log.search_url_filter");
+  if (ptr != NULL) {
+    search_url_filter = ptr;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.search_top_sites");
+  if (val > 0) {
+    search_top_sites = val;
+  }
+
+  ptr = REC_ConfigReadString("proxy.config.log.search_server_ip_addr");
+  if (ptr != NULL) {
+    unsigned int ipaddr;
+    ipaddr = inet_addr(ptr);
+    if (ipaddr > 0) {
+      search_server_ip_addr = ipaddr;
+    } else
+      search_server_ip_addr = 0;
+  }
+
+  val = (int) REC_ConfigReadInteger("proxy.config.log.search_server_port");
+  if (val > 0) {
+    search_server_port = val;
+  }
+
+/*  Rolling interval is taken care in LogObject.                 */
+  val = (int) REC_ConfigReadInteger("proxy.config.log.search_rolling_interval_sec");
+  if (val > 0) {
+    search_rolling_interval_sec = val;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::LogConfig
+
+  Read the logging configuration variables from the config file and
+  initialize the LogConfig member variables.  Assign some meaningful
+  default value if we get garbage back from the config file.
+  -------------------------------------------------------------------------*/
+
+// TODO: Is UINT_MAX here really correct?
+LogConfig::LogConfig()
+  : initialized(false),
+    reconfiguration_needed(false),
+    logging_space_exhausted(false), m_space_used(0), m_partition_space_left((int64_t) UINT_MAX),
+    m_log_collation_accept(NULL),
+    m_dir_entry(NULL),
+    m_pDir(NULL),
+    m_disk_full(false),
+    m_disk_low(false), m_partition_full(false), m_partition_low(false), m_log_directory_inaccessible(false)
+{
+  // Setup the default values for all LogConfig public variables so that
+  // a LogConfig object is valid upon return from the constructor even
+  // if no configuration file is read
+  //
+  setup_default_values();
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::~LogConfig
+
+  Delete all config variable strings.
+  -------------------------------------------------------------------------*/
+
+LogConfig::~LogConfig()
+{
+
+// we don't delete the log collation accept because it may be transferred
+// to another LogConfig object
+//
+//    delete m_log_collation_accept;
+
+  ats_free(hostname);
+  ats_free(logfile_dir);
+  ats_free(squid_log_name);
+  ats_free(squid_log_header);
+  ats_free(common_log_name);
+  ats_free(common_log_header);
+  ats_free(extended_log_name);
+  ats_free(extended_log_header);
+  ats_free(extended2_log_name);
+  ats_free(extended2_log_header);
+  ats_free(collation_host);
+  ats_free(collation_secret);
+  ats_free(xml_config_file);
+  ats_free(hosts_config_file);
+  ats_free(search_log_file_one);
+  ats_free(search_log_file_two);
+  ats_free(m_dir_entry);
+}
+
+
+/*-------------------------------------------------------------------------
+  LogConfig::setup_collation
+  -------------------------------------------------------------------------*/
+
+void
+LogConfig::setup_collation(LogConfig * prev_config)
+{
+  // Set-up the collation status, but only if collation is enabled and
+  // there are valid entries for the collation host and port.
+  //
+  if (collation_mode < Log::NO_COLLATION || collation_mode >= Log::N_COLLATION_MODES) {
+    Note("Invalid value %d for proxy.local.log.collation_mode"
+         " configuration variable (valid range is from %d to %d)\n"
+         "Log collation disabled", collation_mode, Log::NO_COLLATION, Log::N_COLLATION_MODES - 1);
+  } else if (collation_mode == Log::NO_COLLATION) {
+    // if the previous configuration had a collation accept, delete it
+    //
+    if (prev_config && prev_config->m_log_collation_accept) {
+      delete prev_config->m_log_collation_accept;
+      prev_config->m_log_collation_accept = NULL;
+    }
+  } else {
+    if (!collation_port) {
+      Note("Cannot activate log collation, %d is an invalid collation port", collation_port);
+    } else if (collation_mode > Log::COLLATION_HOST && strcmp(collation_host, "none") == 0) {
+      Note("Cannot activate log collation, \"%s\" is an invalid collation host", collation_host);
+    } else {
+      if (collation_mode == Log::COLLATION_HOST) {
+
+        ink_assert(m_log_collation_accept == 0);
+
+        if (prev_config && prev_config->m_log_collation_accept) {
+          if (prev_config->collation_port == collation_port) {
+            m_log_collation_accept = prev_config->m_log_collation_accept;
+          } else {
+            delete prev_config->m_log_collation_accept;
+          }
+        }
+
+        if (!m_log_collation_accept) {
+          Log::collation_port = collation_port;
+          m_log_collation_accept = new LogCollationAccept(collation_port);
+        }
+        Debug("log", "I am a collation host listening on port %d.", collation_port);
+      } else {
+        Debug("log", "I am a collation client (%d)."
+              " My collation host is %s:%d", collation_mode, collation_host, collation_port);
+      }
+
+      Debug("log", "using iocore log collation");
+      if (collation_host_tagged) {
+        LogFormat::turn_tagging_on();
+      } else {
+        LogFormat::turn_tagging_off();
+      }
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::init
+  -------------------------------------------------------------------------*/
+
+void
+LogConfig::init(LogConfig * prev_config)
+{
+  LogObject * errlog = NULL;
+
+  ink_assert(!initialized);
+
+  setup_collation(prev_config);
+
+  update_space_used();
+
+  // create log objects
+  //
+  if (Log::transaction_logging_enabled()) {
+    setup_log_objects();
+  }
+
+  // ----------------------------------------------------------------------
+  // Construct a new error log object candidate.
+  if (Log::error_logging_enabled()) {
+    PreDefinedFormatInfo * info;
+
+    Debug("log", "creating predefined error log object");
+    info = MakePredefinedErrorLog(this);
+    errlog = this->create_predefined_object(info, 0, NULL);
+    errlog->set_fmt_timestamps();
+    delete info;
+  } else {
+    Log::error_log = NULL;
+  }
+
+  if (prev_config) {
+    // Transfer objects from previous configuration.
+    transfer_objects(prev_config);
+
+    // After transferring objects, we are going to keep either the new error log or the old one. Figure out
+    // which one we are keeping and make that the global ...
+    if (Log::error_log) {
+      errlog = this->log_object_manager.find_by_format_name(Log::error_log->m_format->name());
+    }
+  }
+
+  ink_atomic_swap(&Log::error_log, errlog);
+
+  // determine if we should use the orphan log space value or not
+  // we use it if all objects are collation clients, or if some are and
+  // the specified space for collation is larger than that for local files
+  //
+  size_t num_collation_clients = log_object_manager.get_num_collation_clients();
+  use_orphan_log_space_value =
+    (num_collation_clients == 0 ? false :
+     (log_object_manager.get_num_objects() == num_collation_clients ? true :
+      max_space_mb_for_orphan_logs > max_space_mb_for_logs));
+
+  initialized = true;
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::display
+
+  Dump the values for the current LogConfig object.
+  -------------------------------------------------------------------------*/
+
+void
+LogConfig::display(FILE * fd)
+{
+  fprintf(fd, "-----------------------------\n");
+  fprintf(fd, "--- Logging Configuration ---\n");
+  fprintf(fd, "-----------------------------\n");
+  fprintf(fd, "Config variables:\n");
+  fprintf(fd, "   log_buffer_size = %d\n", log_buffer_size);
+  fprintf(fd, "   max_secs_per_buffer = %d\n", max_secs_per_buffer);
+  fprintf(fd, "   max_space_mb_for_logs = %d\n", max_space_mb_for_logs);
+  fprintf(fd, "   max_space_mb_for_orphan_logs = %d\n", max_space_mb_for_orphan_logs);
+  fprintf(fd, "   use_orphan_log_space_value = %d\n", use_orphan_log_space_value);
+  fprintf(fd, "   max_space_mb_headroom = %d\n", max_space_mb_headroom);
+  fprintf(fd, "   hostname = %s\n", hostname);
+  fprintf(fd, "   logfile_dir = %s\n", logfile_dir);
+  fprintf(fd, "   logfile_perm = 0%o\n", logfile_perm);
+  fprintf(fd, "   xml_config_file = %s\n", xml_config_file);
+  fprintf(fd, "   hosts_config_file = %s\n", hosts_config_file);
+  fprintf(fd, "   squid_log_enabled = %d\n", squid_log_enabled);
+  fprintf(fd, "   squid_log_is_ascii = %d\n", squid_log_is_ascii);
+  fprintf(fd, "   squid_log_name = %s\n", squid_log_name);
+  fprintf(fd, "   squid_log_header = %s\n", squid_log_header ? squid_log_header : "<no header defined>");
+  fprintf(fd, "   common_log_enabled = %d\n", common_log_enabled);
+  fprintf(fd, "   common_log_is_ascii = %d\n", common_log_is_ascii);
+  fprintf(fd, "   common_log_name = %s\n", common_log_name);
+  fprintf(fd, "   common_log_header = %s\n", common_log_header ? common_log_header : "<no header defined>");
+  fprintf(fd, "   extended_log_enabled = %d\n", extended_log_enabled);
+  fprintf(fd, "   extended_log_is_ascii = %d\n", extended_log_is_ascii);
+  fprintf(fd, "   extended_log_name = %s\n", extended_log_name);
+  fprintf(fd, "   extended_log_header = %s\n", extended_log_header ? extended_log_header : "<no header defined>");
+  fprintf(fd, "   extended2_log_enabled = %d\n", extended2_log_enabled);
+  fprintf(fd, "   extended2_log_is_ascii = %d\n", extended2_log_is_ascii);
+  fprintf(fd, "   extended2_log_name = %s\n", extended2_log_name);
+  fprintf(fd, "   extended2_log_header = %s\n", extended2_log_header ? extended2_log_header : "<no header defined>");
+  fprintf(fd, "   separate_icp_logs = %d\n", separate_icp_logs);
+  fprintf(fd, "   separate_host_logs = %d\n", separate_host_logs);
+  fprintf(fd, "   collation_mode = %d\n", collation_mode);
+  fprintf(fd, "   collation_host = %s\n", collation_host);
+  fprintf(fd, "   collation_port = %d\n", collation_port);
+  fprintf(fd, "   collation_host_tagged = %d\n", collation_host_tagged);
+  fprintf(fd, "   collation_preproc_threads = %d\n", collation_preproc_threads);
+  fprintf(fd, "   collation_secret = %s\n", collation_secret);
+  fprintf(fd, "   rolling_enabled = %d\n", rolling_enabled);
+  fprintf(fd, "   rolling_interval_sec = %d\n", rolling_interval_sec);
+  fprintf(fd, "   rolling_offset_hr = %d\n", rolling_offset_hr);
+  fprintf(fd, "   rolling_size_mb = %d\n", rolling_size_mb);
+  fprintf(fd, "   auto_delete_rolled_files = %d\n", auto_delete_rolled_files);
+  fprintf(fd, "   sampling_frequency = %d\n", sampling_frequency);
+  fprintf(fd, "   file_stat_frequency = %d\n", file_stat_frequency);
+  fprintf(fd, "   space_used_frequency = %d\n", space_used_frequency);
+
+  fprintf(fd, "\n");
+  fprintf(fd, "************ Log Objects (%u objects) ************\n", (unsigned int)log_object_manager.get_num_objects());
+  log_object_manager.display(fd);
+
+  fprintf(fd, "************ Global Filter List (%u filters) ************\n", global_filter_list.count());
+  global_filter_list.display(fd);
+
+  fprintf(fd, "************ Global Format List (%u formats) ************\n", global_format_list.count());
+  global_format_list.display(fd);
+}
+
+/*                                                               */
+/* The user defined filters are added to the search_one          */
+/* log object. These filters are defined to filter the images    */
+/* and vedio file etc., URLs. These filters depends on the       */
+/* end-user's search requirements.                               */
+/*                                                               */
+void
+LogConfig::add_filters_to_search_log_object(const char *format_name)
+{
+  LogObject *obj;
+
+  obj = log_object_manager.find_by_format_name(format_name);
+
+  /* Apply the user defined filters on to newly created LogObject */
+  SimpleTokenizer tok(search_log_filters, ',');
+  char *filter_name;
+  while (filter_name = tok.getNext(), filter_name != 0) {
+    LogFilter *f;
+    f = global_filter_list.find_by_name(filter_name);
+    if (!f) {
+      Warning("Filter %s not in the global filter list; cannot add to this LogObject", filter_name);
+    } else {
+      obj->add_filter(f);
+    }
+  }
+
+}
+
+//-----------------------------------------------------------------------------
+// Create one object for each of the entries in the pre-defined info list
+// and apply the specified filter(s) to it.
+//
+// Normally, only one pre-defined format has been selected on the config file
+// so this function creates a single object in such case.
+//
+// This function adds the pre-defined objects to the global_object_list.
+//
+
+LogObject *
+LogConfig::create_predefined_object(const PreDefinedFormatInfo * pdi, size_t num_filters,
+                                                  LogFilter ** filter, const char *filt_name, bool force_extension)
+{
+  const char *obj_fname;
+  char obj_filt_fname[PATH_NAME_MAX];
+
+  ink_release_assert(pdi != NULL);
+
+  if (filt_name) {
+    ink_string_concatenate_strings_n(obj_filt_fname, PATH_NAME_MAX, pdi->filename, "-", filt_name, NULL);
+    obj_fname = obj_filt_fname;
+  } else {
+    obj_fname = pdi->filename;
+  }
+
+  if (force_extension) {
+    switch (pdi->filefmt) {
+      case LOG_FILE_ASCII:
+        ink_string_append(obj_filt_fname, (char *)LOG_FILE_ASCII_OBJECT_FILENAME_EXTENSION, PATH_NAME_MAX);
+        break;
+      case LOG_FILE_BINARY:
+        ink_string_append(obj_filt_fname, (char *)LOG_FILE_BINARY_OBJECT_FILENAME_EXTENSION, PATH_NAME_MAX);
+        break;
+      default:
+        break;
+    }
+  }
+
+  // create object with filters
+  //
+  LogObject *obj;
+  obj = new LogObject(pdi->format, logfile_dir, obj_fname,
+                      pdi->filefmt, pdi->header, (Log::RollingEnabledValues)rolling_enabled,
+                      collation_preproc_threads, rolling_interval_sec,
+                      rolling_offset_hr, rolling_size_mb);
+
+  if (pdi->collatable) {
+    if (collation_mode == Log::SEND_STD_FMTS || collation_mode == Log::SEND_STD_AND_NON_XML_CUSTOM_FMTS) {
+
+      LogHost *loghost = new LogHost(obj->get_full_filename(), obj->get_signature());
+      ink_assert(loghost != NULL);
+
+      loghost->set_name_port(collation_host, collation_port);
+      obj->add_loghost(loghost, false);
+    }
+  }
+
+  for (size_t i = 0; i < num_filters; ++i) {
+    obj->add_filter(filter[i]);
+  }
+
+  // give object to object manager
+  if (log_object_manager.manage_object(obj) != LogObjectManager::NO_FILENAME_CONFLICTS) {
+    delete obj;
+    return NULL;
+  }
+
+  return obj;
+}
+
+void
+LogConfig::create_predefined_objects_with_filter(const PreDefinedFormatList & predef, size_t nfilters,
+                                                  LogFilter ** filters, const char * filt_name, bool force_extension)
+{
+  PreDefinedFormatInfo *pdi;
+
+  for (pdi = predef.formats.head; pdi != NULL; pdi = (pdi->link).next) {
+    this->create_predefined_object(pdi, nfilters, filters, filt_name, force_extension);
+  }
+}
+
+
+//-----------------------------------------------------------------------------
+// split_by_protocol
+//
+// This function creates the objects needed to log different protocols on
+// their own file if any of the "separate_xxx_logs" config. variable is set.
+//
+// Upon return, the pf_list argument holds the filters that reject the
+// protocols for which objects have been created. This filter list is used
+// to create the rest of the pre defined log objects.
+//
+// As input, this function requires a list wilh all information regarding
+// pre-defined formats.
+//
+LogFilter *
+LogConfig::split_by_protocol(const PreDefinedFormatList & predef)
+{
+  if (!separate_icp_logs) {
+    return NULL;
+  }
+  // http MUST be last entry
+  enum { icp=0,
+         http
+  };
+
+  int64_t value[] = { LOG_ENTRY_ICP,
+                    LOG_ENTRY_HTTP
+  };
+  const char *name[] = { "icp", "http" };
+  const char *filter_name[] = { "__icp__", "__http__" };
+  int64_t filter_val[http];    // protocols to reject
+  size_t n = 0;
+
+  LogField *etype_field = Log::global_field_list.find_by_symbol("etype");
+  ink_assert(etype_field);
+
+  if (separate_icp_logs) {
+    if (separate_icp_logs == 1) {
+      LogFilter * filter[1];
+
+      filter[0] = new LogFilterInt(filter_name[icp], etype_field, LogFilter::ACCEPT, LogFilter::MATCH, value[icp]);
+      create_predefined_objects_with_filter(predef, countof(filter), filter, name[icp]);
+      delete filter[0];
+    }
+    filter_val[n++] = value[icp];
+  }
+
+  // At this point, separate objects for all protocols except http
+  // have been created if requested. We now add to the argument list
+  // the filters needed to reject the protocols that have already
+  // been taken care of. Note that we do not test for http since
+  // there is no "separate_http_logs" config variable and thus http
+  // could not have been taken care of at this point
+  //
+
+  if (n > 0) {
+    return new LogFilterInt("__reject_protocols__", etype_field, LogFilter::REJECT, LogFilter::MATCH, n, filter_val);
+  }
+  return NULL;
+}
+
+size_t
+LogConfig::split_by_hostname(const PreDefinedFormatList & predef, LogFilter * reject_protocol_filter)
+{
+  size_t n_hosts;
+  char **host = read_log_hosts_file(&n_hosts);  // allocates memory for array
+
+  if (n_hosts) {
+
+    size_t num_filt = 0;
+    LogFilter *rp_ah[2];        // rejected protocols + accepted host
+    LogField *shn_field = Log::global_field_list.find_by_symbol("shn");
+    ink_assert(shn_field);
+
+    if (reject_protocol_filter) {
+      rp_ah[num_filt++] = reject_protocol_filter;
+    }
+
+    for (size_t i = 0; i < n_hosts; ++i) {
+
+      // add a filter that accepts the specified hostname
+      //
+      char filter_name[LOG_MAX_FORMAT_LINE + 12];
+      snprintf(filter_name, LOG_MAX_FORMAT_LINE, "__accept_%s__", host[i]);
+      rp_ah[num_filt] = new LogFilterString(filter_name, shn_field, LogFilter::ACCEPT,
+                                            LogFilter::CASE_INSENSITIVE_CONTAIN, host[i]);
+
+      create_predefined_objects_with_filter(predef, num_filt + 1, rp_ah, host[i], true);
+      delete rp_ah[num_filt];
+    }
+
+    LogFilter *rp_rh[2];        // rejected protocols + rejected hosts
+
+    num_filt = 0;
+
+    if (reject_protocol_filter) {
+      rp_rh[num_filt++] = reject_protocol_filter;
+    }
+
+    rp_rh[num_filt] = new LogFilterString("__reject_hosts__", shn_field, LogFilter::REJECT,
+                                          LogFilter::CASE_INSENSITIVE_CONTAIN, n_hosts, host);
+
+    // create the "catch-all" object that contains logs for all
+    // hosts other than those specified in the hosts file and for
+    // those protocols that do not have their own file
+    //
+    create_predefined_objects_with_filter(predef, num_filt + 1, rp_rh);
+    delete rp_rh[num_filt];
+
+    delete[]host;               // deallocate memory allocated by
+    // read_log_hosts_file
+  }
+  // host is not allocated unless n_hosts > 0
+  // coverity[leaked_storage]
+  return n_hosts;
+}
+
+//-----------------------------------------------------------------------------
+// setup_log_objects
+//
+// Construct:
+//
+// -All objects necessary to log the pre defined formats considering
+//  protocol and host splitting.
+// -All custom objects.
+//
+// Upon return from this function:
+// - global_object_list has the aforementioned objects
+// - global_format_list has all the pre-determined log formats (e.g. squid,
+//   common, etc.)
+// - global_filter_list has all custom filters
+//   Note that the filters necessary to do log splitting for the pre defined
+//   format are kept private (e.g., they do not go to the global_filter_list).
+//
+void
+LogConfig::setup_log_objects()
+{
+  Debug("log", "creating objects...");
+
+  // ----------------------------------------------------------------------
+  // Construct the LogObjects for the pre-defined formats.
+
+  // gather the config information for the pre-defined formats
+  //
+  PreDefinedFormatList predef;
+
+  predef.init(this);
+
+  // do protocol splitting
+  //
+  LogFilter *reject_protocol_filter = split_by_protocol(predef);
+
+  // do host splitting
+  //
+  size_t num_hosts = 0;
+  if (separate_host_logs) {
+    num_hosts = split_by_hostname(predef, reject_protocol_filter);
+  }
+
+  if (num_hosts == 0) {
+    // if no host splitting was requested, or if host splitting
+    // was not successful (e.g. empty log_hosts.config file) then
+    // create the "catch-all" object that contains logs for all
+    // protocols that do not have their own file, and for all hosts
+    //
+    LogFilter *f[1];
+    f[0] = reject_protocol_filter;
+    create_predefined_objects_with_filter(predef, countof(f), f);
+  }
+
+  delete reject_protocol_filter;
+
+  // ----------------------------------------------------------------------
+  // Construct the LogObjects for the custom formats
+
+  global_filter_list.clear();
+
+  /*                                                               */
+  /* create search Log Objects here.                               */
+  /* The following creates the search_one, search_two log objects  */
+  /* For search_one log object user defines filters in xml config  */
+  /* file. The names of these filters have to be given in          */
+  /* records.config file                                           */
+  /*                                                               */
+  if (search_log_enabled) {
+    Debug("log", "creating search log object");
+    /* Read xml configuration for search log from memory.            */
+    read_xml_log_config(1);
+  }
+
+  if (custom_logs_enabled) {
+    /* Read xml configuration from logs_xml.config file.             */
+    read_xml_log_config(0);
+  }
+
+  /*                                                               */
+  /* Add the user defined filters to search_one log object.        */
+  /*                                                               */
+  if (search_log_enabled) {
+    if (search_log_filters) {
+      add_filters_to_search_log_object("m_search_one");
+      add_filters_to_search_log_object("m_search_two");
+    }
+  }
+  // open local pipes so readers can see them
+  //
+  log_object_manager.open_local_pipes();
+
+  if (is_debug_tag_set("log")) {
+    log_object_manager.display();
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::reconfigure
+
+  This is the manager callback for any logging config variable change.
+  Since we want to access the config variables to build a new config
+  object, but can't from this function (big lock technology in the
+  manager), we'll just set a flag and call the real reconfiguration
+  function from the logging thread.
+  -------------------------------------------------------------------------*/
+
+int
+LogConfig::reconfigure(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                       RecData /* data ATS_UNUSED */, void * /* cookie ATS_UNUSED */)
+{
+  Debug("log-config", "Reconfiguration request accepted");
+  Log::config->reconfiguration_needed = true;
+  return 0;
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::register_config_callbacks
+
+  This static function is called by Log::init to register the config update
+  function for each of the logging configuration variables.
+  -------------------------------------------------------------------------*/
+
+void
+LogConfig::register_config_callbacks()
+{
+  static const char * names[] = {
+    "proxy.config.log.log_buffer_size",
+    "proxy.config.log.max_secs_per_buffer",
+    "proxy.config.log.max_space_mb_for_logs",
+    "proxy.config.log.max_space_mb_for_orphan_logs",
+    "proxy.config.log.max_space_mb_headroom",
+    "proxy.config.log.logfile_perm",
+    "proxy.config.log.hostname",
+    "proxy.config.log.logfile_dir",
+    "proxy.config.log.squid_log_enabled",
+    "proxy.config.log.squid_log_is_ascii",
+    "proxy.config.log.squid_log_name",
+    "proxy.config.log.squid_log_header",
+    "proxy.config.log.common_log_enabled",
+    "proxy.config.log.common_log_is_ascii",
+    "proxy.config.log.common_log_name",
+    "proxy.config.log.common_log_header",
+    "proxy.config.log.extended_log_enabled",
+    "proxy.config.log.extended_log_is_ascii",
+    "proxy.config.log.extended_log_name",
+    "proxy.config.log.extended_log_header",
+    "proxy.config.log.extended2_log_enabled",
+    "proxy.config.log.extended2_log_is_ascii",
+    "proxy.config.log.extended2_log_name",
+    "proxy.config.log.extended2_log_header",
+    "proxy.config.log.separate_icp_logs",
+    "proxy.config.log.separate_host_logs",
+    "proxy.local.log.collation_mode",
+    "proxy.config.log.collation_host",
+    "proxy.config.log.collation_port",
+    "proxy.config.log.collation_host_tagged",
+    "proxy.config.log.collation_secret",
+    "proxy.config.log.collation_retry_sec",
+    "proxy.config.log.collation_max_send_buffers",
+    "proxy.config.log.rolling_enabled",
+    "proxy.config.log.rolling_interval_sec",
+    "proxy.config.log.rolling_offset_hr",
+    "proxy.config.log.rolling_size_mb",
+    "proxy.config.log.auto_delete_rolled_files",
+    "proxy.config.log.custom_logs_enabled",
+    "proxy.config.log.xml_config_file",
+    "proxy.config.log.hosts_config_file",
+    "proxy.config.log.sampling_frequency",
+    "proxy.config.log.file_stat_frequency",
+    "proxy.config.log.space_used_frequency",
+    "proxy.config.log.search_rolling_interval_sec",
+    "proxy.config.log.search_log_enabled",
+    "proxy.config.log.search_top_sites",
+    "proxy.config.log.search_server_ip_addr",
+    "proxy.config.log.search_server_port",
+    "proxy.config.log.search_url_filter",
+  };
+
+
+  for (unsigned i = 0; i < countof(names); ++i) {
+    REC_RegisterConfigUpdateFunc(names[i], &LogConfig::reconfigure, NULL);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::register_stat_callbacks
+
+  This static function is called by Log::init to register the stat update
+  function for each of the logging stats variables.
+  -------------------------------------------------------------------------*/
+
+void
+LogConfig::register_stat_callbacks()
+{
+  //
+  // events
+  //
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_error_ok",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_error_ok_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_error_skip",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_error_skip_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_error_aggr",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_error_aggr_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_error_full",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_error_full_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_error_fail",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_error_fail_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_access_ok",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_access_ok_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_access_skip",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_access_skip_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_access_aggr",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_access_aggr_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_access_full",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_access_full_stat, RecRawStatSyncCount);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.event_log_access_fail",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_event_log_access_fail_stat, RecRawStatSyncCount);
+  //
+  // number vs bytes of logs
+  //
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.num_sent_to_network",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_num_sent_to_network_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.num_lost_before_sent_to_network",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_num_lost_before_sent_to_network_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.num_received_from_network",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_num_received_from_network_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.num_flush_to_disk",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_num_flush_to_disk_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.num_lost_before_flush_to_disk",
+                     RECD_COUNTER, RECP_PERSISTENT, (int) log_stat_num_lost_before_flush_to_disk_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_lost_before_preproc",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_lost_before_preproc_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_sent_to_network",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_sent_to_network_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_lost_before_sent_to_network",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_lost_before_sent_to_network_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_received_from_network",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_received_from_network_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_flush_to_disk",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_flush_to_disk_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_lost_before_flush_to_disk",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_lost_before_flush_to_disk_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_written_to_disk",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_written_to_disk_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.bytes_lost_before_written_to_disk",
+                     RECD_INT, RECP_PERSISTENT, (int) log_stat_bytes_lost_before_written_to_disk_stat, RecRawStatSyncSum);
+  //
+  // I/O
+  //
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.log_files_open",
+                     RECD_COUNTER, RECP_NON_PERSISTENT, (int) log_stat_log_files_open_stat, RecRawStatSyncSum);
+  RecRegisterRawStat(log_rsb, RECT_PROCESS,
+                     "proxy.process.log.log_files_space_used",
+                     RECD_INT, RECP_NON_PERSISTENT, (int) log_stat_log_files_space_used_stat, RecRawStatSyncSum);
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::register_mgmt_callbacks
+
+  This static function is called by Log::init to register the mgmt callback
+  function for each of the logging mgmt messages.
+  -------------------------------------------------------------------------*/
+
+void
+LogConfig::register_mgmt_callbacks()
+{
+  RecRegisterManagerCb(REC_EVENT_ROLL_LOG_FILES, &LogConfig::reconfigure_mgmt_variables, NULL);
+}
+
+
+/*-------------------------------------------------------------------------
+  LogConfig::space_to_write
+
+  This function returns true if there is enough disk space to write the
+  given number of bytes, false otherwise.
+  -------------------------------------------------------------------------*/
+
+bool LogConfig::space_to_write(int64_t bytes_to_write)
+{
+  int64_t config_space, partition_headroom;
+  int64_t logical_space_used, physical_space_left;
+  bool space;
+
+  config_space = (int64_t) get_max_space_mb() * LOG_MEGABYTE;
+  partition_headroom = (int64_t) PARTITION_HEADROOM_MB * LOG_MEGABYTE;
+
+  logical_space_used = m_space_used + bytes_to_write;
+  physical_space_left = m_partition_space_left - (int64_t) bytes_to_write;
+
+  space = ((logical_space_used<config_space) && (physical_space_left> partition_headroom));
+
+  Debug("logspace", "logical space used %" PRId64 ", configured space %" PRId64
+      ", physical space left %" PRId64 ", partition headroom %" PRId64 ", space %s available",
+      logical_space_used, config_space, physical_space_left, partition_headroom,
+      space ? "is" : "is not");
+
+  return space;
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::update_space_used
+
+  Update the m_space_used variable by reading the logging dir and counting
+  the total bytes being occupied by files.  If we've used too much space
+  (space_used > max_space - headroom) then start deleting some files (if
+  auto_delete_rolled_files is set) to make room. Finally, update the
+  space_used stat.
+
+  This routine will only be executed SINGLE-THREADED, either by the main
+  thread when a LogConfig is initialized, or by the event thread during the
+  periodic space check.
+  -------------------------------------------------------------------------*/
+
+static int
+delete_candidate_compare(const LogDeleteCandidate * a, const LogDeleteCandidate * b)
+{
+  return ((int) (a->mtime - b->mtime));
+}
+
+void
+LogConfig::update_space_used()
+{
+  // no need to update space used if log directory is inaccessible
+  //
+  if (m_log_directory_inaccessible)
+    return;
+
+  static const int MAX_CANDIDATES = 128;
+  LogDeleteCandidate candidates[MAX_CANDIDATES];
+  int i, victim, candidate_count;
+  int64_t total_space_used, partition_space_left;
+  char path[MAXPATHLEN];
+  int sret;
+  struct dirent *result;
+  struct stat sbuf;
+  DIR *ld;
+
+  // check if logging directory has been specified
+  //
+  if (!logfile_dir) {
+    const char *msg = "Logging directory not specified";
+    Error("%s", msg);
+    LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, "%s", msg);
+    m_log_directory_inaccessible = true;
+    return;
+  }
+  // check if logging directory exists and is searchable readable & writable
+  //
+  int err;
+  do {
+    err = access(logfile_dir, R_OK | W_OK | X_OK);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0) {
+    const char *msg = "Error accessing logging directory %s: %s.";
+    Error(msg, logfile_dir, strerror(errno));
+    LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, logfile_dir, strerror(errno));
+    m_log_directory_inaccessible = true;
+    return;
+  }
+
+  ld =::opendir(logfile_dir);
+  if (ld == NULL) {
+    const char *msg = "Error opening logging directory %s to perform a space check: %s.";
+    Error(msg, logfile_dir, strerror(errno));
+    LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, logfile_dir, strerror(errno));
+    m_log_directory_inaccessible = true;
+    return;
+  }
+
+  if (!m_dir_entry) {
+    long name_max = pathconf(logfile_dir, _PC_NAME_MAX);
+
+    // pathconf should not fail after access and opendir have succeeded
+    //
+    ink_release_assert(name_max > 0);
+
+    m_dir_entry = (struct dirent *)ats_malloc(sizeof(struct dirent) + name_max + 1);
+  }
+
+  total_space_used = 0LL;
+
+  candidate_count = 0;
+
+  while (readdir_r(ld, m_dir_entry, &result) == 0) {
+
+    if (!result) {
+      break;
+    }
+
+    snprintf(path, MAXPATHLEN, "%s/%s", logfile_dir, m_dir_entry->d_name);
+
+    sret =::stat(path, &sbuf);
+    if (sret != -1 && S_ISREG(sbuf.st_mode)) {
+
+      total_space_used += (int64_t) sbuf.st_size;
+
+      if (auto_delete_rolled_files && LogFile::rolled_logfile(m_dir_entry->d_name) && candidate_count < MAX_CANDIDATES) {
+        //
+        // then add this entry to the candidate list
+        //
+        candidates[candidate_count].name = ats_strdup(path);
+        candidates[candidate_count].size = (int64_t) sbuf.st_size;
+        candidates[candidate_count].mtime = sbuf.st_mtime;
+        candidate_count++;
+      }
+    }
+  }
+  ::closedir(ld);
+
+  //
+  // Now check the partition to see if there is enough *actual* space.
+  //
+  partition_space_left = m_partition_space_left;
+
+  struct statvfs fs;
+
+  if (::statvfs(logfile_dir, &fs) >= 0) {
+    partition_space_left = (int64_t) fs.f_bavail * (int64_t) fs.f_bsize;
+  }
+
+  //
+  // Update the config variables for space used/left
+  //
+  m_space_used = total_space_used;
+  m_partition_space_left = partition_space_left;
+  RecSetRawStatSum(log_rsb, log_stat_log_files_space_used_stat, m_space_used);
+  RecSetRawStatCount(log_rsb, log_stat_log_files_space_used_stat, 1);
+
+  Debug("logspace", "%" PRId64 " bytes being used for logs", m_space_used);
+  Debug("logspace", "%" PRId64 " bytes left on partition", m_partition_space_left);
+
+  //
+  // Now that we have an accurate picture of the amount of space being
+  // used by logging, we can see if we're running low on space.  If so,
+  // we might consider deleting some files that are stored in the
+  // candidate array.
+  //
+  // To delete oldest files first, we'll sort our candidate array by
+  // timestamps, making the oldest files first in the array (thus first
+  // selected).
+  //
+
+  int64_t max_space = (int64_t) get_max_space_mb() * LOG_MEGABYTE;
+  int64_t headroom = (int64_t) max_space_mb_headroom * LOG_MEGABYTE;
+
+  if (candidate_count > 0 && !space_to_write(headroom)) {
+
+    Debug("logspace", "headroom reached, trying to clear space ...");
+    Debug("logspace", "sorting %d delete candidates ...", candidate_count);
+    qsort(candidates, candidate_count, sizeof(LogDeleteCandidate),
+          (int (*)(const void *, const void *)) delete_candidate_compare);
+
+    for (victim = 0; victim < candidate_count; victim++) {
+
+      if (space_to_write(headroom + log_buffer_size)) {
+        Debug("logspace", "low water mark reached; stop deleting");
+        break;
+      }
+
+      Debug("logspace", "auto-deleting %s", candidates[victim].name);
+
+      if (unlink(candidates[victim].name) < 0) {
+        Note("Traffic Server was Unable to auto-delete rolled "
+             "logfile %s: %s.", candidates[victim].name, strerror(errno));
+      } else {
+        Debug("logspace", "The rolled logfile, %s, was auto-deleted; "
+               "%" PRId64 " bytes were reclaimed.", candidates[victim].name, candidates[victim].size);
+        m_space_used -= candidates[victim].size;
+        m_partition_space_left += candidates[victim].size;
+      }
+    }
+  }
+  //
+  // Clean up the candidate array
+  //
+  for (i = 0; i < candidate_count; i++) {
+    ats_free(candidates[i].name);
+  }
+
+  //
+  // Now that we've updated the m_space_used value, see if we need to
+  // issue any alarms or warnings about space
+  //
+
+
+  if (!space_to_write(headroom)) {
+    if (!logging_space_exhausted)
+      Note("Logging space exhausted, any logs writing to local disk will be dropped!");
+
+    logging_space_exhausted = true;
+    //
+    // Despite our best efforts, we still can't write to the disk.
+    // Find out why and set/clear warnings.
+    //
+    // First, are we out of space based on configuration?
+    //
+    if (m_space_used >= max_space) {
+      if (!m_disk_full) {
+        m_disk_full = true;
+        LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, DISK_IS_CONFIG_FULL_MESSAGE);
+        Warning(DISK_IS_CONFIG_FULL_MESSAGE);
+      }
+    }
+    //
+    // How about out of actual space on the partition?
+    //
+    else if (m_partition_space_left <= 0) {
+      if (!m_partition_full) {
+        m_partition_full = true;
+        LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, DISK_IS_ACTUAL_FULL_MESSAGE);
+        Warning(DISK_IS_ACTUAL_FULL_MESSAGE);
+      }
+    }
+    //
+    // How about being within the headroom limit?
+    //
+    else if (m_space_used + headroom >= max_space) {
+      if (!m_disk_low) {
+        m_disk_low = true;
+        LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, DISK_IS_CONFIG_LOW_MESSAGE);
+        Warning(DISK_IS_CONFIG_LOW_MESSAGE);
+      }
+    } else {
+      if (!m_partition_low) {
+        m_partition_low = true;
+        LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, DISK_IS_ACTUAL_LOW_MESSAGE);
+        Warning(DISK_IS_ACTUAL_LOW_MESSAGE);
+      }
+    }
+  } else {
+    //
+    // We have enough space to log again; clear any previous messages
+    //
+    if (logging_space_exhausted)
+      Note("Logging space is no longer exhausted.");
+
+    logging_space_exhausted = false;
+    if (m_disk_full || m_partition_full) {
+      Note("Logging disk is no longer full; access logging to local log directory resumed.");
+      m_disk_full = false;
+      m_partition_full = false;
+    }
+    if (m_disk_low || m_partition_low) {
+      Note("Logging disk is no longer low; access logging to local log directory resumed.");
+      m_disk_low = false;
+      m_partition_low = false;
+    }
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  LogConfig::read_xml_log_config
+
+  This is a new routine for reading the XML-based log config file.
+  -------------------------------------------------------------------------*/
+
+static char xml_config_buffer[] = "<LogFilter> \
+                                  <Name = \"reject_gif\"/> \
+                                  <Action = \"REJECT\"/> \
+                                  <Condition = \"cqup CASE_INSENSITIVE_CONTAIN .gif\"/> \
+                                  </LogFilter>\
+                                              \
+                                  <LogFilter> \
+                                  <Name = \"reject_jpg\"/> \
+                                  <Action = \"REJECT\"/> \
+                                  <Condition = \"cqup CASE_INSENSITIVE_CONTAIN .jpg\"/> \
+                                  </LogFilter>\
+                                              \
+                                  <LogFilter> \
+                                  <Name      = \"only_cache_miss\"/> \
+                                  <Action    = \"ACCEPT\"/> \
+                                  <Condition = \"crc MATCH TCP_MISS\"/> \
+                                  </LogFilter> \
+                                              \
+                                  <LogFormat> \
+                                  <Name = \"m_search_one\"/> \
+                                  <Format = \"%%<cquc> %%<cqtt>\"/> \
+                                  </LogFormat> \
+                                               \
+                                  <LogFormat> \
+                                  <Name = \"m_search_two\"/> \
+                                  <Format = \"%%<cquc> %%<crc>\"/> \
+                                  </LogFormat> \
+                                               \
+                                  <LogObject> \
+                                  <Filename = \"search_log1\"/> \
+                                  <Format = \"m_search_one\"/> \
+                                  <Filters = \"reject_gif\", \"reject_jpg\"/> \
+                                  <RollingIntervalSec = \"%d\"/> \
+                                  </LogObject> \
+                                               \
+                                  <LogObject> \
+                                  <Filename = \"search_log2\"/> \
+                                  <Format = \"m_search_two\"/> \
+                                  <Filters = \"reject_gif\", \"reject_jpg\", \"only_cache_miss\"/> \
+                                  <RollingIntervalSec = \"%d\"/> \
+                                  </LogObject>";
+void
+LogConfig::read_xml_log_config(int from_memory)
+{
+  xptr<char> config_path;
+
+  if (!from_memory) {
+    if (xml_config_file == NULL) {
+      Note("No log config file to read");
+      return;
+    }
+
+    config_path = Layout::get()->relative_to(Layout::get()->sysconfdir, xml_config_file);
+  }
+
+  InkXmlConfigFile log_config(config_path ? (const char *)config_path : "memory://builtin");
+
+  if (!from_memory) {
+    Debug("log-config", "Reading log config file %s", (const char *)config_path);
+    Debug("xml", "%s is an XML-based config file", (const char *)config_path);
+
+    if (log_config.parse() < 0) {
+      Note("Error parsing log config file %s; ensure that it is XML-based", (const char *)config_path);
+      return;
+    }
+
+    if (is_debug_tag_set("xml")) {
+      log_config.display();
+    }
+  } else {
+    int filedes[2];
+    int nbytes = sizeof(xml_config_buffer);
+    const size_t ptr_size = nbytes + 20;
+    char *ptr = (char *)ats_malloc(ptr_size);
+
+    if (pipe(filedes) != 0) {
+      Note("xml parsing: Error in Opening a pipe");
+      return;
+    }
+
+    snprintf(ptr, ptr_size, xml_config_buffer, search_rolling_interval_sec, search_rolling_interval_sec);
+    nbytes = strlen(ptr);
+    if (write(filedes[1], ptr, nbytes) != nbytes) {
+      Note("Error in writing to pipe.");
+      ats_free(ptr);
+      close(filedes[1]);
+      close(filedes[0]);
+      return;
+    }
+    ats_free(ptr);
+    close(filedes[1]);
+
+    if (log_config.parse(filedes[0]) < 0) {
+      Note("Error parsing log config info from memory.");
+      return;
+    }
+  }
+
+
+  //
+  // At this point, the XMl file has been parsed into a list of
+  // InkXmlObjects.  We'll loop through them and add the information to
+  // our current configuration.  Expected object names include:
+  //
+  //     LogFormat
+  //     LogFilter
+  //     LogObject
+  //
+
+  InkXmlObject *xobj;
+  InkXmlAttr *xattr;
+
+  for (xobj = log_config.first(); xobj; xobj = log_config.next(xobj)) {
+
+    Debug("xml", "XmlObject: %s", xobj->object_name());
+
+    if (strcmp(xobj->object_name(), "LogFormat") == 0) {
+
+      //
+      // Manditory attributes: Name, Format
+      // Optional attributes : Interval (for aggregate operators)
+      //
+      NameList name;
+      NameList format;
+      NameList interval;
+
+      for (xattr = xobj->first(); xattr; xattr = xobj->next(xattr)) {
+        Debug("xml", "XmlAttr  : <%s,%s>", xattr->tag(), xattr->value());
+
+        if (strcasecmp(xattr->tag(), "Name") == 0) {
+          name.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Format") == 0) {
+          format.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Interval") == 0) {
+          interval.enqueue(xattr->value());
+        } else {
+          Note("Unknown attribute %s for %s; ignoring", xattr->tag(), xobj->object_name());
+        }
+      }
+
+      // check integrity constraints
+      //
+      if (name.count() == 0) {
+        Note("'Name' attribute missing for LogFormat object");
+        continue;
+      }
+      if (format.count() == 0) {
+        Note("'Format' attribute missing for LogFormat object");
+        continue;
+      }
+      if (name.count() > 1) {
+        Note("Multiple values for 'Name' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (format.count() > 1) {
+        Note("Multiple values for 'Format' attribute in %s; using the first one", xobj->object_name());
+      }
+
+      char *format_str = format.dequeue();
+      char *name_str = name.dequeue();
+      unsigned interval_num = 0;
+
+      // if the format_str contains any of the aggregate operators,
+      // we need to ensure that an interval was specified.
+      //
+      if (LogField::fieldlist_contains_aggregates(format_str)) {
+        if (interval.count() == 0) {
+          Note("'Interval' attribute missing for LogFormat object"
+               " %s that contains aggregate operators: %s", name_str, format_str);
+          continue;
+        } else if (interval.count() > 1) {
+          Note("Multiple values for 'Interval' attribute in %s; using the first one", xobj->object_name());
+        }
+        // interval
+        //
+        interval_num = ink_atoui(interval.dequeue());
+      } else if (interval.count() > 0) {
+        Note("Format %s has no aggregates, ignoring 'Interval' attribute.", name_str);
+      }
+      // create new format object and place onto global list
+      //
+      LogFormat *fmt = new LogFormat(name_str, format_str, interval_num);
+
+      ink_assert(fmt != NULL);
+      if (fmt->valid()) {
+        global_format_list.add(fmt, false);
+
+        if (is_debug_tag_set("xml")) {
+          printf("The following format was added to the global format list\n");
+          fmt->displayAsXML(stdout);
+        }
+      } else {
+        Note("Format named \"%s\" will not be active; not a valid format", fmt->name()? fmt->name() : "");
+        delete fmt;
+      }
+    }
+
+    else if (strcmp(xobj->object_name(), "LogFilter") == 0) {
+      int i;
+
+      // Mandatory attributes: Name, Action, Condition
+      // Optional attributes : none
+      //
+      NameList name;
+      NameList condition;
+      NameList action;
+
+      for (xattr = xobj->first(); xattr; xattr = xobj->next(xattr)) {
+        Debug("xml", "XmlAttr  : <%s,%s>", xattr->tag(), xattr->value());
+
+        if (strcasecmp(xattr->tag(), "Name") == 0) {
+          name.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Action") == 0) {
+          action.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Condition") == 0) {
+          condition.enqueue(xattr->value());
+        } else {
+          Note("Unknown attribute %s for %s; ignoring", xattr->tag(), xobj->object_name());
+        }
+      }
+
+      // check integrity constraints
+      //
+      if (name.count() == 0) {
+        Note("'Name' attribute missing for LogFilter object");
+        continue;
+      }
+      if (action.count() == 0) {
+        Note("'Action' attribute missing for LogFilter object");
+        continue;
+      }
+      if (condition.count() == 0) {
+        Note("'Condition' attribute missing for LogFilter object");
+        continue;
+      }
+      if (name.count() > 1) {
+        Note("Multiple values for 'Name' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (action.count() > 1) {
+        Note("Multiple values for 'Action' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (condition.count() > 1) {
+        Note("Multiple values for 'Condition' attribute in %s; using the first one", xobj->object_name());
+      }
+
+      char *filter_name = name.dequeue();
+
+      // convert the action string to an enum value and validate it
+      //
+      char *action_str = action.dequeue();
+      LogFilter::Action act = LogFilter::REJECT;        /* lv: make gcc happy */
+      for (i = 0; i < LogFilter::N_ACTIONS; i++) {
+        if (strcasecmp(action_str, LogFilter::ACTION_NAME[i]) == 0) {
+          act = (LogFilter::Action) i;
+          break;
+        }
+      }
+
+      if (i == LogFilter::N_ACTIONS) {
+        Warning("%s is not a valid filter action value; cannot create filter %s.", action_str, filter_name);
+        continue;
+      }
+      // parse condition string and validate its fields
+      //
+      char *cond_str = condition.dequeue();
+
+      SimpleTokenizer tok(cond_str);
+
+      if (tok.getNumTokensRemaining() < 3) {
+        Warning("Invalid condition syntax \"%s\"; cannot create filter %s.", cond_str, filter_name);
+        continue;
+      }
+
+      char *field_str = tok.getNext();
+      char *oper_str = tok.getNext();
+      char *val_str = tok.getRest();
+
+      // validate field symbol
+      //
+      if (strlen(field_str) > 2 && field_str[0] == '%' && field_str[1] == '<') {
+        Debug("xml", "Field symbol has <> form: %s", field_str);
+        char *end = field_str;
+        while (*end && *end != '>')
+          end++;
+        *end = '\0';
+        field_str += 2;
+        Debug("xml", "... now field symbol is %s", field_str);
+      }
+
+      LogField *logfield = Log::global_field_list.find_by_symbol(field_str);
+      if (!logfield) {
+        // check for container fields
+        if (*field_str == '{') {
+          Note("%s appears to be a container field", field_str);
+          char *fname_end = strchr(field_str, '}');
+          if (NULL != fname_end) {
+            char *fname = field_str + 1;
+            *fname_end = 0;          // changes '}' to '\0'
+            char *cname = fname_end + 1;     // start of container symbol
+            Note("Found Container Field: Name = %s, symbol = %s", fname, cname);
+            LogField::Container container = LogField::valid_container_name(cname);
+            if (container == LogField::NO_CONTAINER) {
+              Warning("%s is not a valid container; cannot create filter %s.", cname, filter_name);
+              continue;
+            } else {
+              logfield = new LogField(fname, container);
+              ink_assert(logfield != NULL);
+            }
+          } else {
+            Warning("Invalid container field specification: no trailing '}' in %s cannot create filter %s.", field_str, filter_name);
+            continue;
+          }
+        }
+      }
+
+      if (!logfield) {
+        Warning("%s is not a valid field; cannot create filter %s.", field_str, filter_name);
+        continue;
+      }
+      // convert the operator string to an enum value and validate it
+      //
+      LogFilter::Operator oper = LogFilter::MATCH;
+      for (i = 0; i < LogFilter::N_OPERATORS; ++i) {
+        if (strcasecmp(oper_str, LogFilter::OPERATOR_NAME[i]) == 0) {
+          oper = (LogFilter::Operator) i;
+          break;
+        }
+      }
+
+      if (i == LogFilter::N_OPERATORS) {
+        Warning("%s is not a valid operator; cannot create filter %s.", oper_str, filter_name);
+        continue;
+      }
+      // now create the correct LogFilter
+      //
+      LogFilter *filter = NULL;
+      LogField::Type field_type = logfield->type();
+
+      switch (field_type) {
+
+      case LogField::sINT:
+
+        filter = new LogFilterInt(filter_name, logfield, act, oper, val_str);
+        break;
+
+      case LogField::dINT:
+
+        Warning("Internal error: invalid field type (double int); cannot create filter %s.", filter_name);
+        continue;
+
+      case LogField::STRING:
+
+        filter = new LogFilterString(filter_name, logfield, act, oper, val_str);
+        break;
+
+      case LogField::IP:
+        Warning("Internal error: IP filters not yet supported cannot create filter %s.", filter_name);
+        continue;
+
+      default:
+
+        Warning("Internal error: unknown field type %d; cannot create filter %s.", field_type, filter_name);
+        continue;
+      }
+
+      ink_assert(filter);
+
+      if (filter->get_num_values() == 0) {
+
+        Warning("\"%s\" does not specify any valid values; cannot create filter %s.", val_str, filter_name);
+        delete filter;
+
+      } else {
+
+        // add filter to global filter list
+        //
+        global_filter_list.add(filter, false);
+
+        if (is_debug_tag_set("xml")) {
+          printf("The following filter was added to the global filter list\n");
+          filter->display_as_XML();
+        }
+      }
+    }
+
+    else if (strcasecmp(xobj->object_name(), "LogObject") == 0) {
+
+      NameList format;          // mandatory
+      NameList filename;        // mandatory
+      NameList mode;
+      NameList filters;
+      NameList protocols;
+      NameList serverHosts;
+      NameList collationHosts;
+      NameList header;
+      NameList rollingEnabled;
+      NameList rollingIntervalSec;
+      NameList rollingOffsetHr;
+      NameList rollingSizeMb;
+
+      for (xattr = xobj->first(); xattr; xattr = xobj->next(xattr)) {
+        Debug("xml", "XmlAttr  : <%s,%s>", xattr->tag(), xattr->value());
+        if (strcasecmp(xattr->tag(), "Format") == 0) {
+          format.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Filename") == 0) {
+          filename.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Mode") == 0) {
+          mode.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Filters") == 0) {
+          filters.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Protocols") == 0) {
+          protocols.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "ServerHosts") == 0) {
+          serverHosts.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "CollationHosts") == 0) {
+          collationHosts.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "Header") == 0) {
+          header.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "RollingEnabled") == 0) {
+          rollingEnabled.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "RollingIntervalSec") == 0) {
+          rollingIntervalSec.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "RollingOffsetHr") == 0) {
+          rollingOffsetHr.enqueue(xattr->value());
+        } else if (strcasecmp(xattr->tag(), "RollingSizeMb") == 0) {
+          rollingSizeMb.enqueue(xattr->value());
+        } else {
+          Note("Unknown attribute %s for %s; ignoring", xattr->tag(), xobj->object_name());
+        }
+      }
+
+      // check integrity constraints
+      //
+      if (format.count() == 0) {
+        Note("'Format' attribute missing for LogObject object");
+        continue;
+      }
+      if (filename.count() == 0) {
+        Note("'Filename' attribute missing for LogObject object");
+        continue;
+      }
+
+      if (format.count() > 1) {
+        Note("Multiple values for 'Format' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (filename.count() > 1) {
+        Note("Multiple values for 'Filename' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (mode.count() > 1) {
+        Note("Multiple values for 'Mode' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (filters.count() > 1) {
+        Note("Multiple values for 'Filters' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (protocols.count() > 1) {
+        Note("Multiple values for 'Protocols' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (serverHosts.count() > 1) {
+        Note("Multiple values for 'ServerHosts' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (collationHosts.count() > 1) {
+        Note("Multiple values for 'CollationHosts' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (header.count() > 1) {
+        Note("Multiple values for 'Header' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (rollingEnabled.count() > 1) {
+        Note("Multiple values for 'RollingEnabled' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (rollingIntervalSec.count() > 1) {
+        Note("Multiple values for 'RollingIntervalSec' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (rollingOffsetHr.count() > 1) {
+        Note("Multiple values for 'RollingOffsetHr' attribute in %s; using the first one", xobj->object_name());
+      }
+      if (rollingSizeMb.count() > 1) {
+        Note("Multiple values for 'RollingSizeMb' attribute in %s; using the first one", xobj->object_name());
+      }
+      // create new LogObject and start adding to it
+      //
+
+      char *fmt_name = format.dequeue();
+      LogFormat *fmt = global_format_list.find_by_name(fmt_name);
+      if (!fmt) {
+        Warning("Format %s not in the global format list; cannot create LogObject", fmt_name);
+        continue;
+      }
+      // file format
+      //
+      LogFileFormat file_type = LOG_FILE_ASCII;      // default value
+      if (mode.count()) {
+        char *mode_str = mode.dequeue();
+        file_type = (strncasecmp(mode_str, "bin", 3) == 0 ||
+                     (mode_str[0] == 'b' && mode_str[1] == 0) ?
+                     LOG_FILE_BINARY : (strcasecmp(mode_str, "ascii_pipe") == 0 ? LOG_FILE_PIPE : LOG_FILE_ASCII));
+      }
+      // rolling
+      //
+      char *rollingEnabled_str = rollingEnabled.dequeue();
+      int obj_rolling_enabled = rollingEnabled_str ? ink_atoui(rollingEnabled_str) : rolling_enabled;
+
+      char *rollingIntervalSec_str = rollingIntervalSec.dequeue();
+      int obj_rolling_interval_sec = rollingIntervalSec_str ? ink_atoui(rollingIntervalSec_str) : rolling_interval_sec;
+
+      char *rollingOffsetHr_str = rollingOffsetHr.dequeue();
+      int obj_rolling_offset_hr = rollingOffsetHr_str ? ink_atoui(rollingOffsetHr_str) : rolling_offset_hr;
+
+      char *rollingSizeMb_str = rollingSizeMb.dequeue();
+      int obj_rolling_size_mb = rollingSizeMb_str ? ink_atoui(rollingSizeMb_str) : rolling_size_mb;
+
+      if (!LogRollingEnabledIsValid(obj_rolling_enabled)) {
+        Warning("Invalid log rolling value '%d' in log object %s", obj_rolling_enabled, xobj->object_name());
+      }
+
+      // create the new object
+      //
+      LogObject *obj = new LogObject(fmt, logfile_dir,
+                                     filename.dequeue(),
+                                     file_type,
+                                     header.dequeue(),
+                                     (Log::RollingEnabledValues)obj_rolling_enabled,
+                                     collation_preproc_threads,
+                                     obj_rolling_interval_sec,
+                                     obj_rolling_offset_hr,
+                                     obj_rolling_size_mb);
+
+      // filters
+      //
+      char *filters_str = filters.dequeue();
+      if (filters_str) {
+        SimpleTokenizer tok(filters_str, ',');
+        char *filter_name;
+        while (filter_name = tok.getNext(), filter_name != 0) {
+          LogFilter *f;
+          f = global_filter_list.find_by_name(filter_name);
+          if (!f) {
+            Warning("Filter %s not in the global filter list; cannot add to this LogObject", filter_name);
+          } else {
+            obj->add_filter(f);
+          }
+        }
+      }
+      // protocols
+      //
+      char *protocols_str = protocols.dequeue();
+      if (protocols_str) {
+
+        LogField *etype_field = Log::global_field_list.find_by_symbol("etype");
+        ink_assert(etype_field);
+
+        SimpleTokenizer tok(protocols_str, ',');
+        size_t n = tok.getNumTokensRemaining();
+
+        if (n) {
+          int64_t *val_array = new int64_t[n];
+          size_t numValid = 0;
+          char *t;
+          while (t = tok.getNext(), t != NULL) {
+            if (strcasecmp(t, "icp") == 0) {
+              val_array[numValid++] = LOG_ENTRY_ICP;
+            } else if (strcasecmp(t, "http") == 0) {
+              val_array[numValid++] = LOG_ENTRY_HTTP;
+            }
+          }
+
+          if (numValid == 0) {
+            Warning("No valid protocol value(s) (%s) for Protocol "
+                    "field in definition of XML LogObject.\nObject will log all protocols.", protocols_str);
+          } else {
+            if (numValid < n) {
+              Warning("There are invalid protocol values (%s) in"
+                      " the Protocol field of XML LogObject.\n"
+                      "Only %zu out of %zu values will be used.", protocols_str, numValid, n);
+            }
+
+            LogFilterInt protocol_filter("__xml_protocol__",
+                                         etype_field, LogFilter::ACCEPT, LogFilter::MATCH, numValid, val_array);
+            obj->add_filter(&protocol_filter);
+          }
+          delete[] val_array;
+        } else {
+          Warning("No value(s) in Protocol field of XML object, object will log all protocols.");
+        }
+      }
+      // server hosts
+      //
+      char *serverHosts_str = serverHosts.dequeue();
+      if (serverHosts_str) {
+
+        LogField *shn_field = Log::global_field_list.find_by_symbol("shn");
+        ink_assert(shn_field);
+
+        LogFilterString server_host_filter("__xml_server_hosts__",
+                                           shn_field, LogFilter::ACCEPT, LogFilter::CASE_INSENSITIVE_CONTAIN, serverHosts_str);
+
+        if (server_host_filter.get_num_values() == 0) {
+          Warning("No valid server host value(s) (%s) for Protocol "
+                  "field in definition of XML LogObject.\nObject will log all servers.", serverHosts_str);
+        } else {
+          obj->add_filter(&server_host_filter);
+        }
+      }
+      // collation hosts
+      //
+      char *collationHosts_str = collationHosts.dequeue();
+      if (collationHosts_str) {
+        char *host;
+        SimpleTokenizer tok(collationHosts_str, ',');
+        while (host = tok.getNext(), host != 0) {
+
+          LogHost *prev = NULL;
+          char *failover_str;
+          SimpleTokenizer failover_tok(host, '|'); // split failover hosts
+
+          while (failover_str = failover_tok.getNext(), failover_str != 0) {
+            LogHost *lh = new LogHost(obj->get_full_filename(), obj->get_signature());
+
+            if (lh->set_name_or_ipstr(failover_str)) {
+              Warning("Could not set \"%s\" as collation host", host);
+              delete lh;
+            } else if (!prev){
+              obj->add_loghost(lh, false);
+              prev = lh;
+            } else {
+              prev->failover_link.next = lh;
+              prev = lh;
+            }
+          }
+        }
+      }
+      // now the object is complete; give it to the object manager
+      //
+      log_object_manager.manage_object(obj);
+    }
+
+    else {
+      Note("Unknown XML config object for logging: %s", xobj->object_name());
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogConfig::read_log_hosts_file
+
+  This routine will read the log_hosts.config file to build a set of
+  filters for splitting logs based on hostname fields that match the
+  entries in this file.
+  -------------------------------------------------------------------------*/
+
+char **
+LogConfig::read_log_hosts_file(size_t * num_hosts)
+{
+  xptr<char> config_path(Layout::get()->relative_to(Layout::get()->sysconfdir, hosts_config_file));
+  char line[LOG_MAX_FORMAT_LINE];
+  char **hosts = NULL;
+
+  Debug("log-config", "Reading log hosts from %s", (const char *)config_path);
+
+  size_t nhosts = 0;
+  int fd = open(config_path, O_RDONLY);
+  if (fd < 0) {
+    Warning("Traffic Server can't open %s for reading log hosts for splitting: %s.", (const char *)config_path, strerror(errno));
+  } else {
+    //
+    // First, count the number of hosts in the file
+    //
+    while (ink_file_fd_readline(fd, LOG_MAX_FORMAT_LINE, line) > 0) {
+      //
+      // Ignore blank Lines and lines that begin with a '#'.
+      //
+      if (*line == '\n' || *line == '#') {
+        continue;
+      }
+      ++nhosts;
+    }
+    //
+    // Now read the hosts from the file and set-up the array entries.
+    //
+    if (nhosts) {
+      if (lseek(fd, 0, SEEK_SET) != 0) {
+        Warning("lseek failed on file %s: %s", (const char *)config_path, strerror(errno));
+        nhosts = 0;
+      } else {
+        hosts = new char *[nhosts];
+        ink_assert(hosts != NULL);
+
+        size_t i = 0;
+        while (ink_file_fd_readline(fd, LOG_MAX_FORMAT_LINE, line) > 0) {
+          //
+          // Ignore blank Lines and lines that begin with a '#'.
+          //
+          if (*line == '\n' || *line == '#') {
+            continue;
+          }
+          LogUtils::strip_trailing_newline(line);
+          hosts[i] = ats_strdup(line);
+          ++i;
+        }
+        ink_assert(i == nhosts);
+      }
+    }
+    close(fd);
+  }
+  *num_hosts = nhosts;
+  return hosts;
+}
diff --git a/proxy/logging/LogConfig.h b/proxy/logging/LogConfig.h
new file mode 100644
index 00000000..f63ab786
--- /dev/null
+++ b/proxy/logging/LogConfig.h
@@ -0,0 +1,275 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_CONFIG_H
+#define LOG_CONFIG_H
+
+#include "libts.h"
+#include "P_RecProcess.h"
+#include "ProxyConfig.h"
+
+/* Instead of enumerating the stats in DynamicStats.h, each module needs
+   to enumerate its stats separately and register them with librecords
+   */
+enum
+{
+  // Logging Events
+  log_stat_event_log_error_ok_stat,
+  log_stat_event_log_error_skip_stat,
+  log_stat_event_log_error_aggr_stat,
+  log_stat_event_log_error_full_stat,
+  log_stat_event_log_error_fail_stat,
+
+  log_stat_event_log_access_ok_stat,
+  log_stat_event_log_access_skip_stat,
+  log_stat_event_log_access_aggr_stat,
+  log_stat_event_log_access_full_stat,
+  log_stat_event_log_access_fail_stat,
+
+  // Logging Data
+  log_stat_num_sent_to_network_stat,
+  log_stat_num_lost_before_sent_to_network_stat,
+  log_stat_num_received_from_network_stat,
+  log_stat_num_flush_to_disk_stat,
+  log_stat_num_lost_before_flush_to_disk_stat,
+
+  log_stat_bytes_lost_before_preproc_stat,
+  log_stat_bytes_sent_to_network_stat,
+  log_stat_bytes_lost_before_sent_to_network_stat,
+  log_stat_bytes_received_from_network_stat,
+
+  log_stat_bytes_flush_to_disk_stat,
+  log_stat_bytes_lost_before_flush_to_disk_stat,
+  log_stat_bytes_written_to_disk_stat,
+  log_stat_bytes_lost_before_written_to_disk_stat,
+
+  // Logging I/O
+  log_stat_log_files_open_stat,
+  log_stat_log_files_space_used_stat,
+
+  log_stat_count
+};
+
+extern RecRawStatBlock *log_rsb;
+
+struct dirent;
+struct LogCollationAccept;
+struct PreDefinedFormatList;
+struct PreDefinedFormatInfo;
+
+/*-------------------------------------------------------------------------
+  LogConfig
+
+  This object keeps the state of the logging configuraion variables.  Upon
+  construction, the log configuration file is read and the logging
+  variables are initialized.
+
+  The "global" LogConfig object is kept as a static pointer in the Log
+  class, called "config", and changed whenever the configuration variables
+  are changed in the config file, using Log::change_configuration().
+
+  To add a new config variable:
+     1. Add a line in records.config for the new config variable.
+        The name in records.config should be "proxy.config.log.xxx".
+     2. Create a member variable to store the current value.
+        The name of the member variable should be "xxx".
+     3. If the member variable is a string, add a delete for it in the
+        destructor, LogConfig::~LogConfig.
+     4. Initialize the member variable in LogConfig::setup_default_values
+     5. Update the member variable from the records.config file
+        in LogConfig::read_configuration_variables() using a call to
+        ConfigReadInteger or ConfigReadString.
+     6. Add a line in the LogConfig::register_config_callbacks() function
+        for this new variable if it is exposed in the GUI
+  -------------------------------------------------------------------------*/
+
+class LogConfig : public ConfigInfo
+{
+
+public:
+
+  LogConfig();
+  ~LogConfig();
+
+  void init(LogConfig * previous_config = 0);
+  void display(FILE * fd = stdout);
+  void setup_log_objects();
+
+  static void register_configs();
+  static int reconfigure(const char *name, RecDataT data_type, RecData data, void *cookie);
+
+  static void register_config_callbacks();
+  static void register_stat_callbacks();
+  static void register_mgmt_callbacks();
+
+  bool space_to_write(int64_t bytes_to_write);
+
+  bool am_collation_host() const { return collation_mode == Log::COLLATION_HOST; }
+  bool space_is_short() { return !space_to_write(max_space_mb_headroom * LOG_MEGABYTE); };
+
+  void increment_space_used(int bytes) {
+    m_space_used += bytes;
+    m_partition_space_left -= bytes;
+  }
+
+  void update_space_used();
+  void read_configuration_variables();
+
+// CVR This is the mgmt callback function, hence all the strange arguments
+  static void *reconfigure_mgmt_variables(void *token, char *data_raw, int data_len);
+
+  int get_max_space_mb() {
+    return (use_orphan_log_space_value ? max_space_mb_for_orphan_logs : max_space_mb_for_logs);
+  }
+
+  void transfer_objects(LogConfig * old_config) {
+    log_object_manager.transfer_objects(old_config->log_object_manager);
+  }
+
+  bool has_api_objects() const { return log_object_manager.has_api_objects(); }
+
+public:
+  bool initialized;
+  bool reconfiguration_needed;
+  bool logging_space_exhausted;
+  int64_t m_space_used;
+  int64_t m_partition_space_left;
+  bool roll_log_files_now;      // signal that files must be rolled
+
+  LogObjectManager log_object_manager;
+  LogFilterList global_filter_list;
+  LogFormatList global_format_list;
+
+  int log_buffer_size;
+  int max_secs_per_buffer;
+  int max_space_mb_for_logs;
+  int max_space_mb_for_orphan_logs;
+  int max_space_mb_headroom;
+  int logfile_perm;
+  bool squid_log_enabled;
+  bool squid_log_is_ascii;
+  bool common_log_enabled;
+  bool common_log_is_ascii;
+  bool extended_log_enabled;
+  bool extended_log_is_ascii;
+  bool extended2_log_enabled;
+  bool extended2_log_is_ascii;
+  bool separate_icp_logs;
+  bool separate_host_logs;
+  int collation_mode;
+  int collation_port;
+  bool collation_host_tagged;
+  int collation_preproc_threads;
+  int collation_retry_sec;
+  int collation_max_send_buffers;
+  Log::RollingEnabledValues rolling_enabled;
+  int rolling_interval_sec;
+  int rolling_offset_hr;
+  int rolling_size_mb;
+  bool auto_delete_rolled_files;
+  bool custom_logs_enabled;
+
+  bool search_log_enabled;
+  int search_rolling_interval_sec;
+  unsigned int search_server_ip_addr;
+  int search_server_port;
+  int search_top_sites;
+  char *search_log_filters;
+  char *search_url_filter;
+  char *search_log_file_one;
+  char *search_log_file_two;
+
+  int sampling_frequency;
+  int file_stat_frequency;
+  int space_used_frequency;
+
+  int ascii_buffer_size;
+  int max_line_size;
+
+  char *hostname;
+  char *logfile_dir;
+  char *squid_log_name;
+  char *squid_log_header;
+  char *common_log_name;
+  char *common_log_header;
+  char *extended_log_name;
+  char *extended_log_header;
+  char *extended2_log_name;
+  char *extended2_log_header;
+  char *collation_host;
+  char *collation_secret;
+  char *xml_config_file;
+  char *hosts_config_file;
+
+private:
+
+  void read_xml_log_config(int from_memory);
+  char **read_log_hosts_file(size_t * nhosts);
+
+  void setup_default_values();
+  void setup_collation(LogConfig * prev_config);
+  LogFilter *split_by_protocol(const PreDefinedFormatList & pre_def_info_list);
+  size_t split_by_hostname(const PreDefinedFormatList & pre_def_info_list, LogFilter * reject_protocol);
+  LogObject * create_predefined_object(const PreDefinedFormatInfo * pdi, size_t nfilters,
+        LogFilter ** filters, const char *filt_name = 0, bool force_extension = false);
+  void create_predefined_objects_with_filter(const PreDefinedFormatList &pre_def_info_list, size_t nfilters,
+        LogFilter ** filters, const char *filt_name = 0, bool force_extension = false);
+
+  void add_filters_to_search_log_object(const char *format_name);
+
+private:
+  // if true, use max_space_mb_for_orphan_logs to determine the amount
+  // of space that logging can use, otherwise use max_space_mb_for_logs
+  //
+  bool use_orphan_log_space_value;
+
+  LogCollationAccept *m_log_collation_accept;
+
+  struct dirent *m_dir_entry;
+  char *m_pDir;
+  bool m_disk_full;
+  bool m_disk_low;
+  bool m_partition_full;
+  bool m_partition_low;
+  bool m_log_directory_inaccessible;
+
+private:
+  // -- member functions not allowed --
+  LogConfig(const LogConfig &);
+  LogConfig & operator=(const LogConfig &);
+};
+
+/*-------------------------------------------------------------------------
+  LogDeleteCandidate
+  -------------------------------------------------------------------------*/
+
+struct LogDeleteCandidate
+{
+  time_t mtime;
+  char *name;
+  int64_t size;
+};
+
+#endif
diff --git a/proxy/logging/LogField.cc b/proxy/logging/LogField.cc
new file mode 100644
index 00000000..ba4b8269
--- /dev/null
+++ b/proxy/logging/LogField.cc
@@ -0,0 +1,636 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogField.cc
+
+ This file implements the LogField object, which is the central
+ representation of a logging field.
+ ***************************************************************************/
+#include "libts.h"
+
+#include "Error.h"
+#include "LogUtils.h"
+#include "LogField.h"
+#include "LogBuffer.h"
+#include "LogAccess.h"
+#include "Log.h"
+
+const char *container_names[] = {
+  "not-a-container",
+  "cqh",
+  "psh",
+  "pqh",
+  "ssh",
+  "cssh",
+  "ecqh",
+  "epsh",
+  "epqh",
+  "essh",
+  "ecssh",
+  "icfg",
+  "scfg",
+  "record",
+  ""
+};
+
+const char *aggregate_names[] = {
+  "not-an-agg-op",
+  "COUNT",
+  "SUM",
+  "AVG",
+  "FIRST",
+  "LAST",
+  ""
+};
+
+LogSlice::LogSlice(char *str)
+{
+  char *a, *b, *c;
+
+  m_enable = false;
+  m_start = 0;
+  m_end = INT_MAX;
+
+  if ((a = strchr(str, '[')) == NULL)
+    return;
+
+  *a++ = '\0';
+  if ((b = strchr(a, ':')) == NULL)
+    return;
+
+  *b++ = '\0';
+  if ((c = strchr(b, ']')) == NULL)
+    return;
+
+  m_enable = true;
+
+  // eat space
+  while (a != b && *a == ' ') a++;
+
+  if (a != b)
+    m_start = atoi(a);
+
+  // eat space
+  while (b != c && *b == ' ') b++;
+
+  if (b != c)
+    m_end = atoi(b);
+}
+
+int
+LogSlice::toStrOffset(int strlen, int *offset)
+{
+  int i, j, len;
+
+  // letf index
+  if (m_start >= 0)
+    i = m_start;
+  else
+    i = m_start + strlen;
+
+  if (i >= strlen)
+    return 0;
+
+  if (i < 0)
+    i = 0;
+
+  // right index
+  if (m_end >= 0)
+    j = m_end;
+  else
+    j = m_end + strlen;
+
+  if (j <= 0)
+    return 0;
+
+  if (j > strlen)
+    j = strlen;
+
+  // available length
+  len = j - i;
+
+  if (len > 0)
+    *offset = i;
+
+  return len;
+}
+
+/*-------------------------------------------------------------------------
+  LogField::LogField
+  -------------------------------------------------------------------------*/
+
+// Generic field ctor
+LogField::LogField(const char *name, const char *symbol, Type type, MarshalFunc marshal, UnmarshalFunc unmarshal, SetFunc _setfunc)
+  : m_name(ats_strdup(name)), m_symbol(ats_strdup(symbol)), m_type(type), m_container(NO_CONTAINER), m_marshal_func(marshal),
+    m_unmarshal_func(unmarshal), m_unmarshal_func_map(NULL), m_agg_op(NO_AGGREGATE), m_agg_cnt(0), m_agg_val(0),
+    m_time_field(false), m_alias_map(0), m_set_func(_setfunc)
+{
+  ink_assert(m_name != NULL);
+  ink_assert(m_symbol != NULL);
+  ink_assert(m_type >= 0 && m_type < N_TYPES);
+  ink_assert(m_marshal_func != (MarshalFunc) NULL);
+
+  m_time_field = (strcmp(m_symbol, "cqts") == 0
+                  || strcmp(m_symbol, "cqth") == 0
+                  || strcmp(m_symbol, "cqtq") == 0
+                  || strcmp(m_symbol, "cqtn") == 0 || strcmp(m_symbol, "cqtd") == 0 || strcmp(m_symbol, "cqtt") == 0);
+}
+
+LogField::LogField(const char *name, const char *symbol, Type type,
+                   MarshalFunc marshal, UnmarshalFuncWithMap unmarshal, Ptr<LogFieldAliasMap> map, SetFunc _setfunc)
+  : m_name(ats_strdup(name)), m_symbol(ats_strdup(symbol)), m_type(type), m_container(NO_CONTAINER), m_marshal_func(marshal),
+    m_unmarshal_func(NULL), m_unmarshal_func_map(unmarshal), m_agg_op(NO_AGGREGATE), m_agg_cnt(0), m_agg_val(0),
+    m_time_field(false), m_alias_map(map), m_set_func(_setfunc)
+{
+  ink_assert(m_name != NULL);
+  ink_assert(m_symbol != NULL);
+  ink_assert(m_type >= 0 && m_type < N_TYPES);
+  ink_assert(m_marshal_func != (MarshalFunc) NULL);
+  ink_assert(m_alias_map != NULL);
+
+  m_time_field = (strcmp(m_symbol, "cqts") == 0
+                  || strcmp(m_symbol, "cqth") == 0
+                  || strcmp(m_symbol, "cqtq") == 0
+                  || strcmp(m_symbol, "cqtn") == 0 || strcmp(m_symbol, "cqtd") == 0 || strcmp(m_symbol, "cqtt") == 0);
+}
+
+// Container field ctor
+LogField::LogField(const char *field, Container container, SetFunc _setfunc)
+  : m_name(ats_strdup(field)), m_symbol(ats_strdup(container_names[container])), m_type(LogField::STRING),
+    m_container(container), m_marshal_func(NULL), m_unmarshal_func(NULL), m_unmarshal_func_map(NULL),
+    m_agg_op(NO_AGGREGATE), m_agg_cnt(0), m_agg_val(0), m_time_field(false), m_alias_map(0), m_set_func(_setfunc)
+{
+  ink_assert(m_name != NULL);
+  ink_assert(m_symbol != NULL);
+  ink_assert(m_type >= 0 && m_type < N_TYPES);
+
+  m_time_field = (strcmp(m_symbol, "cqts") == 0
+                  || strcmp(m_symbol, "cqth") == 0
+                  || strcmp(m_symbol, "cqtq") == 0
+                  || strcmp(m_symbol, "cqtn") == 0 || strcmp(m_symbol, "cqtd") == 0 || strcmp(m_symbol, "cqtt") == 0);
+
+  switch (m_container) {
+  case CQH:
+  case PSH:
+  case PQH:
+  case SSH:
+  case CSSH:
+  case ECQH:
+  case EPSH:
+  case EPQH:
+  case ESSH:
+  case ECSSH:
+  case SCFG:
+    m_unmarshal_func = (UnmarshalFunc)&(LogAccess::unmarshal_str);
+    break;
+
+  case ICFG:
+    m_unmarshal_func = &(LogAccess::unmarshal_int_to_str);
+    break;
+
+  case RECORD:
+    m_unmarshal_func = &(LogAccess::unmarshal_record);
+    break;
+
+  default:
+    Note("Invalid container type in LogField ctor: %d", container);
+  }
+}
+
+// Copy ctor
+LogField::LogField(const LogField &rhs)
+  : m_name(ats_strdup(rhs.m_name)), m_symbol(ats_strdup(rhs.m_symbol)), m_type(rhs.m_type), m_container(rhs.m_container),
+    m_marshal_func(rhs.m_marshal_func), m_unmarshal_func(rhs.m_unmarshal_func), m_unmarshal_func_map(rhs.m_unmarshal_func_map),
+    m_agg_op(rhs.m_agg_op), m_agg_cnt(0), m_agg_val(0), m_time_field(rhs.m_time_field), m_alias_map(rhs.m_alias_map), m_set_func(rhs.m_set_func)
+{
+  ink_assert(m_name != NULL);
+  ink_assert(m_symbol != NULL);
+  ink_assert(m_type >= 0 && m_type < N_TYPES);
+}
+
+/*-------------------------------------------------------------------------
+  LogField::~LogField
+  -------------------------------------------------------------------------*/
+LogField::~LogField()
+{
+  ats_free(m_name);
+  ats_free(m_symbol);
+}
+
+/*-------------------------------------------------------------------------
+  LogField::marshal_len
+
+  This routine will find the marshalling length (in bytes) for this field,
+  given a LogAccess object.  It does this by using the property of the
+  marshalling routines that if the marshal buffer is NULL, only the size
+  requirement is returned.
+  -------------------------------------------------------------------------*/
+unsigned
+LogField::marshal_len(LogAccess *lad)
+{
+  if (m_container == NO_CONTAINER)
+    return (lad->*m_marshal_func) (NULL);
+
+  switch (m_container) {
+  case CQH:
+  case PSH:
+  case PQH:
+  case SSH:
+  case CSSH:
+    return lad->marshal_http_header_field(m_container, m_name, NULL);
+
+  case ECQH:
+  case EPSH:
+  case EPQH:
+  case ESSH:
+  case ECSSH:
+    return lad->marshal_http_header_field_escapify(m_container, m_name, NULL);
+
+  case ICFG:
+    return lad->marshal_config_int_var(m_name, NULL);
+
+  case SCFG:
+    return lad->marshal_config_str_var(m_name, NULL);
+
+  case RECORD:
+    return lad->marshal_record(m_name, NULL);
+
+  default:
+    return 0;
+  }
+}
+
+void
+LogField::updateField(LogAccess *lad, char *buf, int len)
+{
+  if (m_container == NO_CONTAINER) {
+    return (lad->*m_set_func) (buf, len);
+  }
+  // else...// future enhancement
+}
+
+/*-------------------------------------------------------------------------
+  LogField::marshal
+
+  This routine will marshsal the given field into the buffer provided.
+  -------------------------------------------------------------------------*/
+unsigned
+LogField::marshal(LogAccess *lad, char *buf)
+{
+  if (m_container == NO_CONTAINER) {
+    return (lad->*m_marshal_func) (buf);
+  }
+
+  switch (m_container) {
+  case CQH:
+  case PSH:
+  case PQH:
+  case SSH:
+  case CSSH:
+    return lad->marshal_http_header_field(m_container, m_name, buf);
+
+  case ECQH:
+  case EPSH:
+  case EPQH:
+  case ESSH:
+  case ECSSH:
+    return lad->marshal_http_header_field_escapify(m_container, m_name, buf);
+
+  case ICFG:
+    return lad->marshal_config_int_var(m_name, buf);
+
+  case SCFG:
+    return lad->marshal_config_str_var(m_name, buf);
+
+  case RECORD:
+    return lad->marshal_record(m_name, buf);
+
+  default:
+    return 0;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogField::marshal_agg
+  -------------------------------------------------------------------------*/
+unsigned
+LogField::marshal_agg(char *buf)
+{
+  ink_assert(buf != NULL);
+  int64_t avg = 0;
+
+  switch (m_agg_op) {
+
+  case eCOUNT:
+    LogAccess::marshal_int(buf, m_agg_cnt);
+    break;
+
+  case eSUM:
+  case eFIRST:
+  case eLAST:
+    LogAccess::marshal_int(buf, m_agg_val);
+    break;
+
+  case eAVG:
+    if (m_agg_cnt) {
+      avg = m_agg_val / m_agg_cnt;
+    }
+    LogAccess::marshal_int(buf, avg);
+    break;
+
+  default:
+    Note("Cannot marshal aggregate field %s; " "invalid aggregate operator: %d", m_symbol, m_agg_op);
+    return 0;
+  }
+
+  m_agg_val = 0;
+  m_agg_cnt = 0;
+
+  return INK_MIN_ALIGN;
+}
+
+/*-------------------------------------------------------------------------
+  LogField::unmarshal
+
+  This routine will invoke the proper unmarshalling routine to return a
+  string that represents the ASCII value of the field.
+  -------------------------------------------------------------------------*/
+unsigned
+LogField::unmarshal(char **buf, char *dest, int len)
+{
+  if (m_alias_map == NULL) {
+    if (m_unmarshal_func == (UnmarshalFunc)LogAccess::unmarshal_str
+        || m_unmarshal_func == (UnmarshalFunc)LogAccess::unmarshal_http_text) {
+      UnmarshalFuncWithSlice func = (UnmarshalFuncWithSlice)m_unmarshal_func;
+      return (*func) (buf, dest, len, &m_slice);
+    }
+    return (*m_unmarshal_func) (buf, dest, len);
+  } else {
+    return (*m_unmarshal_func_map) (buf, dest, len, m_alias_map);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogField::display
+  -------------------------------------------------------------------------*/
+void
+LogField::display(FILE *fd)
+{
+  static const char *names[LogField::N_TYPES] = {
+    "sINT",
+    "dINT",
+    "STR",
+    "IP"
+  };
+
+  fprintf(fd, "    %30s %10s %5s\n", m_name, m_symbol, names[m_type]);
+}
+
+/*-------------------------------------------------------------------------
+  LogField::operator==
+
+  This operator does only care of the name and m_symbol, may need
+  do check on others layter.
+  -------------------------------------------------------------------------*/
+bool
+LogField::operator==(LogField & rhs) {
+  if (strcmp(name(), rhs.name()) || strcmp(symbol(), rhs.symbol())) {
+    return false;
+  } else {
+    return true;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+void
+LogField::set_aggregate_op(LogField::Aggregate agg_op)
+{
+  if (agg_op > 0 && agg_op < LogField::N_AGGREGATES) {
+    m_agg_op = agg_op;
+  } else {
+    Note("Invalid aggregate operator identifier: %d", agg_op);
+    m_agg_op = NO_AGGREGATE;
+  }
+}
+
+
+void
+LogField::update_aggregate(int64_t val)
+{
+  switch (m_agg_op) {
+
+  case eCOUNT:
+  case eSUM:
+  case eAVG:
+    m_agg_val += val;
+    m_agg_cnt++;
+    break;
+
+  case eFIRST:
+    if (m_agg_cnt == 0) {
+      m_agg_val = val;
+      m_agg_cnt++;
+    }
+    break;
+
+  case eLAST:
+    m_agg_val = val;
+    m_agg_cnt++;
+    break;
+
+  default:
+    Note("Cannot update aggregate field; invalid operator %d", m_agg_op);
+    return;
+  }
+
+  Debug("log-agg", "Aggregate field %s updated with val %" PRId64", "
+        "new val = %" PRId64", cnt = %" PRId64"", m_symbol, val, m_agg_val, m_agg_cnt);
+}
+
+
+LogField::Container LogField::valid_container_name(char *name)
+{
+  for (int i = 1; i < LogField::N_CONTAINERS; i++) {
+    if (strcmp(name, container_names[i]) == 0) {
+      return (LogField::Container) i;
+    }
+  }
+  return LogField::NO_CONTAINER;
+}
+
+
+LogField::Aggregate LogField::valid_aggregate_name(char *name)
+{
+  for (int i = 1; i < LogField::N_AGGREGATES; i++) {
+    if (strcmp(name, aggregate_names[i]) == 0) {
+      return (LogField::Aggregate) i;
+    }
+  }
+  return LogField::NO_AGGREGATE;
+}
+
+
+bool LogField::fieldlist_contains_aggregates(char *fieldlist)
+{
+  bool
+    contains_aggregates = false;
+  for (int i = 1; i < LogField::N_AGGREGATES; i++) {
+    if (strstr(fieldlist, aggregate_names[i]) != NULL) {
+      contains_aggregates = true;
+    }
+  }
+  return contains_aggregates;
+}
+
+
+/*-------------------------------------------------------------------------
+  LogFieldList
+
+  It is ASSUMED that each element on this list has been allocated from the
+  heap with "new" and that each element is on at most ONE list.  To enforce
+  this, items are copied by default, using the copy ctor.
+  -------------------------------------------------------------------------*/
+LogFieldList::LogFieldList()
+  : m_marshal_len(0)
+{ }
+
+LogFieldList::~LogFieldList()
+{
+  clear();
+}
+
+void
+LogFieldList::clear()
+{
+  LogField *f;
+  while ((f = m_field_list.dequeue())) {
+    delete f;                   // safe given the semantics stated above
+  }
+  m_marshal_len = 0;
+}
+
+void
+LogFieldList::add(LogField *field, bool copy)
+{
+  ink_assert(field != NULL);
+
+  if (copy) {
+    m_field_list.enqueue(new LogField(*field));
+  } else {
+    m_field_list.enqueue(field);
+  }
+
+  if (field->type() == LogField::sINT) {
+    m_marshal_len += INK_MIN_ALIGN;
+  }
+}
+
+LogField *
+LogFieldList::find_by_name(const char *name) const
+{
+  for (LogField *f = first(); f; f = next(f)) {
+    if (!strcmp(f->name(), name)) {
+      return f;
+    }
+  }
+  return NULL;
+}
+
+LogField *
+LogFieldList::find_by_symbol(const char *symbol) const
+{
+  LogField *field = 0;
+
+  if (Log::field_symbol_hash) {
+    if (ink_hash_table_lookup(Log::field_symbol_hash, (char *) symbol, (InkHashTableValue *) & field) && field) {
+      Debug("log-field-hash", "Field %s found", field->symbol());
+      return field;
+    }
+  }
+  // trusty old method
+
+  for (field = first(); field; field = next(field)) {
+    if (!strcmp(field->symbol(), symbol)) {
+      return field;
+    }
+  }
+
+  return NULL;
+}
+
+unsigned
+LogFieldList::marshal_len(LogAccess *lad)
+{
+  int bytes = 0;
+  for (LogField *f = first(); f; f = next(f)) {
+    if (f->type() != LogField::sINT) {
+      bytes += f->marshal_len(lad);
+    }
+  }
+  return m_marshal_len + bytes;
+}
+
+unsigned
+LogFieldList::marshal(LogAccess *lad, char *buf)
+{
+  char *ptr;
+  int bytes = 0;
+  for (LogField *f = first(); f; f = next(f)) {
+    ptr = &buf[bytes];
+    bytes += f->marshal(lad, ptr);
+    ink_assert(bytes % INK_MIN_ALIGN == 0);
+  }
+  return bytes;
+}
+
+unsigned
+LogFieldList::marshal_agg(char *buf)
+{
+  char *ptr;
+  int bytes = 0;
+  for (LogField *f = first(); f; f = next(f)) {
+    ptr = &buf[bytes];
+    bytes += f->marshal_agg(ptr);
+  }
+  return bytes;
+}
+
+unsigned
+LogFieldList::count()
+{
+  unsigned cnt = 0;
+  for (LogField *f = first(); f; f = next(f)) {
+    cnt++;
+  }
+  return cnt;
+}
+
+void
+LogFieldList::display(FILE *fd)
+{
+  for (LogField *f = first(); f; f = next(f)) {
+    f->display(fd);
+  }
+}
diff --git a/proxy/logging/LogField.h b/proxy/logging/LogField.h
new file mode 100644
index 00000000..b1b0c648
--- /dev/null
+++ b/proxy/logging/LogField.h
@@ -0,0 +1,268 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_FIELD_H
+#define LOG_FIELD_H
+
+#include "libts.h"
+#include "LogFieldAliasMap.h"
+
+class LogAccess;
+
+struct LogSlice
+{
+  bool m_enable;
+  int m_start;
+  int m_end;
+
+  LogSlice() {
+    m_enable = false;
+    m_start = 0;
+    m_end = INT_MAX;
+  }
+
+  //
+  // Initialize LogSlice by slice notation,
+  // the str looks like: "xxx[0:30]".
+  //
+  LogSlice(char *str);
+
+  //
+  // Convert slice notation to target string's offset,
+  // return the available length belongs to this slice.
+  //
+  // Use the offset and return value, we can locate the
+  // string content indicated by this slice.
+  //
+  int toStrOffset(int strlen, int *offset);
+};
+
+
+/*-------------------------------------------------------------------------
+  LogField
+
+  This class represents a field that can be logged.  To construct a new
+  field, we need to know its name, its symbol, its datatype, and the
+  pointer to its LogAccess marshalling routine.  Example:
+
+      LogField ("client_host_ip", "chi", LogField::INT,
+	        &LogAccess::marshal_client_host_ip);
+  -------------------------------------------------------------------------*/
+
+class LogField
+{
+public:
+  typedef int (LogAccess::*MarshalFunc) (char *buf);
+  typedef int (*UnmarshalFunc) (char **buf, char *dest, int len);
+  typedef int (*UnmarshalFuncWithSlice) (char **buf, char *dest, int len, LogSlice *slice);
+  typedef int (*UnmarshalFuncWithMap) (char **buf, char *dest, int len, Ptr<LogFieldAliasMap> map);
+  typedef void (LogAccess::*SetFunc) (char *buf, int len);
+
+
+  enum Type
+  {
+    sINT = 0,
+    dINT,
+    STRING,
+    IP, ///< IP Address.
+    N_TYPES
+  };
+
+  enum Container
+  {
+    NO_CONTAINER = 0,
+    CQH,
+    PSH,
+    PQH,
+    SSH,
+    CSSH,
+    ECQH,
+    EPSH,
+    EPQH,
+    ESSH,
+    ECSSH,
+    ICFG,
+    SCFG,
+    RECORD,
+    N_CONTAINERS
+  };
+
+  enum Aggregate
+  {
+    NO_AGGREGATE = 0,
+    eCOUNT,
+    eSUM,
+    eAVG,
+    eFIRST,
+    eLAST,
+    N_AGGREGATES
+  };
+
+  LogField(const char *name, const char *symbol, Type type, MarshalFunc marshal, UnmarshalFunc unmarshal, SetFunc _setFunc=NULL);
+
+  LogField(const char *name, const char *symbol, Type type,
+      MarshalFunc marshal, UnmarshalFuncWithMap unmarshal, Ptr<LogFieldAliasMap> map, SetFunc _setFunc=NULL);
+
+  LogField(const char *field, Container container, SetFunc _setFunc=NULL);
+  LogField(const LogField & rhs);
+  ~LogField();
+
+  unsigned marshal_len(LogAccess * lad);
+  unsigned marshal(LogAccess * lad, char *buf);
+  unsigned marshal_agg(char *buf);
+  unsigned unmarshal(char **buf, char *dest, int len);
+  void display(FILE * fd = stdout);
+  bool operator==(LogField & rhs);
+  void updateField(LogAccess * lad, char* val, int len);
+
+  char *name()
+  {
+    return m_name;
+  }
+  char *symbol()
+  {
+    return m_symbol;
+  }
+  Type type()
+  {
+    return m_type;
+  }
+  Ptr<LogFieldAliasMap> map() {
+    return m_alias_map;
+  };
+  Aggregate aggregate()
+  {
+    return m_agg_op;
+  }
+  bool is_time_field()
+  {
+    return m_time_field;
+  }
+
+  void set_aggregate_op(Aggregate agg_op);
+  void update_aggregate(int64_t val);
+
+  static Container valid_container_name(char *name);
+  static Aggregate valid_aggregate_name(char *name);
+  static bool fieldlist_contains_aggregates(char *fieldlist);
+
+private:
+  char *m_name;
+  char *m_symbol;
+  Type m_type;
+  Container m_container;
+  MarshalFunc m_marshal_func;   // place data into buffer
+  UnmarshalFunc m_unmarshal_func;       // create a string of the data
+  UnmarshalFuncWithMap m_unmarshal_func_map;
+  Aggregate m_agg_op;
+  int64_t m_agg_cnt;
+  int64_t m_agg_val;
+  bool m_time_field;
+  Ptr<LogFieldAliasMap> m_alias_map; // map sINT <--> string
+  SetFunc m_set_func;
+
+public:
+  LINK(LogField, link);
+  LogSlice m_slice;
+
+private:
+// luis, check where this is used and what it does
+//    void init (char *name, char *symbol, Type type);
+
+  // -- member functions that are not allowed --
+  LogField();
+  LogField & operator=(const LogField & rhs);
+};
+
+extern const char *container_names[];
+extern const char *aggregate_names[];
+
+/*-------------------------------------------------------------------------
+  LogFieldList
+
+  This class maintains a list of LogField objects (tah-dah).
+  -------------------------------------------------------------------------*/
+
+class LogFieldList
+{
+public:
+  LogFieldList();
+  ~LogFieldList();
+
+  void clear();
+  void add(LogField * field, bool copy = true);
+  LogField *find_by_name(const char *name) const;
+  LogField *find_by_symbol(const char *symbol) const;
+  unsigned marshal_len(LogAccess * lad);
+  unsigned marshal(LogAccess * lad, char *buf);
+  unsigned marshal_agg(char *buf);
+
+  LogField *first() const
+  {
+    return m_field_list.head;
+  }
+  LogField *next(LogField * here) const
+  {
+    return (here->link).next;
+  }
+  unsigned count();
+  void display(FILE * fd = stdout);
+
+private:
+  unsigned m_marshal_len;
+  Queue<LogField> m_field_list;
+
+  // -- member functions that are not allowed --
+  LogFieldList(const LogFieldList & rhs);
+  LogFieldList & operator=(const LogFieldList & rhs);
+};
+
+/** Base IP address data.
+    To unpack an IP address, the generic memory is first cast to
+    this type to get the family. That pointer can then be static_cast
+    to the appropriate subtype to get the actual address data.
+
+    @note We don't use our own enum for the family. Instead we use
+    @c AF_INET and @c AF_INET6.
+*/
+struct LogFieldIp {
+  uint16_t _family; ///< IP address family.
+};
+/// IPv4 address as log field.
+struct LogFieldIp4 : public LogFieldIp {
+  in_addr_t _addr; ///< IPv4 address.
+};
+/// IPv6 address as log field.
+struct LogFieldIp6 : public LogFieldIp {
+  in6_addr _addr; ///< IPv6 address.
+};
+/// Something big enough to hold any of the IP field types.
+union LogFieldIpStorage {
+  LogFieldIp _ip;
+  LogFieldIp4 _ip4;
+  LogFieldIp6 _ip6;
+};
+
+#endif
diff --git a/proxy/logging/LogFieldAliasMap.cc b/proxy/logging/LogFieldAliasMap.cc
new file mode 100644
index 00000000..cfceb233
--- /dev/null
+++ b/proxy/logging/LogFieldAliasMap.cc
@@ -0,0 +1,84 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogFieldAliasMap.cc
+
+
+ ***************************************************************************/
+
+#include "ink_config.h"
+#include "LogFieldAliasMap.h"
+#include "ink_assert.h"
+
+void
+LogFieldAliasTable::init(size_t numPairs, ...)
+{
+
+  ink_assert(numPairs > 0);
+
+  if (m_table) {
+    delete[]m_table;
+  }
+
+  size_t n;
+  va_list ap;
+  va_start(ap, numPairs);
+  char *name;
+
+  /* A note on the varargs -
+     Although IntType is used internally the compiler doesn't know that
+     at the call site of this method. Because the numeric values aren't
+     explicitly cast, they will come through as "int" sized values.
+  */
+  m_min = m_max = va_arg(ap, int);
+  name = va_arg(ap, char *);    // ignore next arg. for now
+
+  for (n = 1; n < numPairs; n++) {
+    IntType val = va_arg(ap, int);
+    if (val < m_min) {
+      m_min = val;
+    } else if (val > m_max) {
+      m_max = val;
+    }
+    name = va_arg(ap, char *);  // ignore next arg. for now
+  }
+
+  va_end(ap);
+  va_start(ap, numPairs);
+
+  m_entries = m_max - m_min + 1;
+  m_table = new LogFieldAliasTableEntry[m_entries];
+
+  for (n = 0; n < numPairs; n++) {
+    IntType val = va_arg(ap, int);
+    size_t i = val - m_min;
+    name = va_arg(ap, char *);
+
+    m_table[i].name = ats_strdup(name);
+    m_table[i].length = strlen(name);
+    m_table[i].valid = true;
+  }
+
+  va_end(ap);
+}
diff --git a/proxy/logging/LogFieldAliasMap.h b/proxy/logging/LogFieldAliasMap.h
new file mode 100644
index 00000000..1ad26cdf
--- /dev/null
+++ b/proxy/logging/LogFieldAliasMap.h
@@ -0,0 +1,225 @@
+/** @file
+
+  This file implements an abstract class to map between numbers of type IntType
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+  @section description
+  This file implements an abstract class to map between numbers of type IntType
+  and strings. The purpose is to obtain one representation from the other so that
+  easily remembered names can be used to refer to log fields of integer type.
+ */
+
+
+#ifndef LOG_FIELD_ALIAS_MAP_H
+#define LOG_FIELD_ALIAS_MAP_H
+
+#include <stdarg.h>
+#include <string.h>
+
+#include "libts.h"
+#include "Ptr.h"
+#include "LogUtils.h"
+#include "ink_string.h"
+
+/*****************************************************************************
+
+The LogFieldAliasMap class is an abstract class used to provide an
+interface to map between numbers of type IntType and strings. The
+purpose is to obtain one representation from the other so that easy to
+remember names can be used to refer to log fields of integer type.
+
+The methods that subclasses should implement are:
+
+1) asInt(char *key, IntType *val)
+
+This method takes a string and sets the IntType argument to the
+corresponding value, (unless the string is invalid). It returns an
+error status.
+
+2) asString(IntType key, char *buf, size_t bufLen, size_t *numChars=0)
+
+This method takes an IntType key and writes its equivalent string to a
+bufer buf of length bufLen. It sets the number of written characters
+numChars (if numChars is not NULL), and returns an error status.
+
+The IntType to string conversion is used when unmarshaling data prior to
+writing to a log file, and the string to IntType conversion is used when
+building filters (so that the filter value can be specified as a string,
+but the actual field comparison is done between IntTypes).
+
+Note that LogFieldAliasMap is derived from RefCountObj, so once a map
+is constructed a pointer to it can be passed to other objects (e.g.,
+to a LogField object) without the object having to worry about freeing
+any memory the map may have allocated.
+
+ *****************************************************************************/
+
+
+class LogFieldAliasMap:public RefCountObj
+{
+public:
+
+  // the logging system assumes log entries of type sINT are
+  // unsigned (signed?) integers (int64_t type) so we define IntType
+  // to be unsigned (signed?)
+  // The problem using the correct type is that the init method is
+  // vararg. To make that work, we must use the "generic" int.
+
+  typedef int64_t IntType;
+  enum
+  { ALL_OK = 0, INVALID_INT, INVALID_STRING, BUFFER_TOO_SMALL };
+
+  virtual int asInt(char *key, IntType * val, bool case_sensitive = 0) const = 0;
+  virtual int asString(IntType key, char *buf, size_t bufLen, size_t * numChars = 0) const = 0;
+};
+
+/*****************************************************************************
+
+A LogFieldAliasTable implements a LogFieldAliasMap through a
+straightforward table. The entries in the table are input with the
+init(numPairs, ...) method.  Arguments to this method are the number
+numPairs of table entries, followed by the entries themselves in the
+form integer, string. For example:
+
+table->init(3, 1, "one", 2, "two", 7, "seven")
+
+ *****************************************************************************/
+
+struct LogFieldAliasTableEntry
+{
+  bool valid;                   // entry in table is valid
+  char *name;                   // the string equivalent
+  size_t length;                // the length of the string
+
+  LogFieldAliasTableEntry()
+    : valid(false), name(NULL), length(0)
+  { }
+};
+
+class LogFieldAliasTable:public LogFieldAliasMap
+{
+private:
+  IntType m_min;                 // minimum numeric value
+  IntType  m_max;                 // maximum numeric value
+  IntType m_entries;             // number of entries in table
+  LogFieldAliasTableEntry *m_table;     // array of table entries
+
+public:
+  LogFieldAliasTable()
+    : m_min(0), m_max(0), m_entries(0), m_table(0)
+  { }
+
+  ~LogFieldAliasTable() {
+    delete[]m_table;
+  }
+
+  void init(size_t numPairs, ...);
+
+  int asInt(char *key, IntType * val, bool case_sensitive) const
+  {
+    int retVal = INVALID_STRING;
+
+    for (IntType i = 0; i < m_entries; i++)
+    {
+      bool found;
+      if (m_table[i].valid)
+      {
+        if (case_sensitive) {
+          found = (strcmp(key, m_table[i].name) == 0);
+        } else
+        {
+          found = (strcasecmp(key, m_table[i].name) == 0);
+        }
+      } else {
+        found = false;
+      }
+      if (found) {
+        *val = (unsigned int) (i + m_min);
+        retVal = ALL_OK;
+        break;
+      }
+    }
+
+    return retVal;
+  }
+
+  int asString(IntType key, char *buf, size_t bufLen, size_t * numCharsPtr = 0) const
+  {
+    int retVal;
+    size_t numChars;
+
+    size_t i = key - m_min;
+    if (m_entries && key >= m_min && key <= m_max && m_table[i].valid)
+    {
+      size_t l = m_table[i].length;
+      if (l < bufLen)
+      {
+        ink_strlcpy(buf, m_table[key - m_min].name, bufLen);
+        numChars = l;
+        retVal = ALL_OK;
+      } else
+      {
+        numChars = 0;
+        retVal = BUFFER_TOO_SMALL;
+      }
+    } else {
+      numChars = 0;
+      retVal = INVALID_INT;
+    }
+    if (numCharsPtr) {
+      *numCharsPtr = numChars;
+    }
+    return retVal;
+  }
+};
+
+/*****************************************************************************
+
+The LogFieldAliasTimehex class implements a LogFieldAliasMap that converts time
+from their integer value to the "hex" notation and back.
+
+ *****************************************************************************/
+
+class LogFieldAliasTimeHex:public LogFieldAliasMap
+{
+public:
+  int asInt(char *str, IntType * time, bool /* case_sensitive ATS_UNUSED */) const
+  {
+    unsigned long a;
+    // coverity[secure_coding]
+    if (sscanf(str, "%lx", (unsigned long *) &a) == 1) {
+      *time = (IntType) a;
+      return ALL_OK;
+    } else
+    {
+      return INVALID_STRING;
+    }
+  }
+
+  int asString(IntType time, char *buf, size_t bufLen, size_t * numCharsPtr = 0) const
+  {
+    return (LogUtils::timestamp_to_hex_str(time, buf, bufLen, numCharsPtr) ? BUFFER_TOO_SMALL : ALL_OK);
+  }
+};
+
+
+
+//LOG_FIELD_ALIAS_MAP_H
+#endif
diff --git a/proxy/logging/LogFile.cc b/proxy/logging/LogFile.cc
new file mode 100644
index 00000000..aed130f0
--- /dev/null
+++ b/proxy/logging/LogFile.cc
@@ -0,0 +1,896 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogFile.cc
+
+
+ ***************************************************************************/
+
+#include "libts.h"
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "Error.h"
+
+#include "P_EventSystem.h"
+#include "I_Machine.h"
+#include "LogSock.h"
+
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogBuffer.h"
+#include "LogFile.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogUtils.h"
+#include "LogConfig.h"
+#include "Log.h"
+
+/*-------------------------------------------------------------------------
+  LogFile::LogFile
+
+  This constructor builds a LogFile object given the path, filename, header,
+  and logfile format type.  This is the common way to create a new logfile.
+  -------------------------------------------------------------------------*/
+
+LogFile::LogFile(const char *name, const char *header, LogFileFormat format,
+                 uint64_t signature, size_t ascii_buffer_size, size_t max_line_size)
+  : m_file_format(format),
+    m_name(ats_strdup(name)),
+    m_header(ats_strdup(header)),
+    m_signature(signature),
+    m_meta_info(NULL),
+    m_max_line_size(max_line_size)
+{
+  delete m_meta_info;
+  m_meta_info = NULL;
+  m_fd = -1;
+  m_start_time = 0L;
+  m_end_time = 0L;
+  m_bytes_written = 0;
+  m_size_bytes = 0;
+  m_ascii_buffer_size = (ascii_buffer_size < max_line_size ? max_line_size : ascii_buffer_size);
+
+  Debug("log-file", "exiting LogFile constructor, m_name=%s, this=%p", m_name, this);
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::LogFile
+
+  This (copy) contructor builds a LogFile object from another LogFile object.
+  -------------------------------------------------------------------------*/
+
+LogFile::LogFile (const LogFile& copy)
+  : m_file_format (copy.m_file_format),
+    m_name  (ats_strdup (copy.m_name)),
+    m_header  (ats_strdup (copy.m_header)),
+    m_signature (copy.m_signature),
+    m_meta_info (NULL),
+    m_ascii_buffer_size (copy.m_ascii_buffer_size),
+    m_max_line_size (copy.m_max_line_size),
+    m_fd (-1),
+    m_start_time (0L),
+    m_end_time (0L),
+    m_bytes_written (0)
+{
+    ink_release_assert(m_ascii_buffer_size >= m_max_line_size);
+
+    Debug("log-file", "exiting LogFile copy constructor, m_name=%s, this=%p",
+          m_name, this);
+}
+/*-------------------------------------------------------------------------
+  LogFile::~LogFile
+  -------------------------------------------------------------------------*/
+
+LogFile::~LogFile()
+{
+  Debug("log-file", "entering LogFile destructor, this=%p", this);
+  close_file();
+
+  ats_free(m_name);
+  ats_free(m_header);
+  delete m_meta_info;
+  Debug("log-file", "exiting LogFile destructor, this=%p", this);
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::exists
+
+  Returns true if the logfile already exists; false otherwise.
+  -------------------------------------------------------------------------*/
+
+bool LogFile::exists(const char *pathname)
+{
+  ink_assert(pathname != NULL);
+  return (pathname && ::access(pathname, F_OK) == 0);
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::change_name
+  -------------------------------------------------------------------------*/
+
+void
+LogFile::change_name(const char *new_name)
+{
+  ats_free(m_name);
+  m_name = ats_strdup(new_name);
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::change_header
+  -------------------------------------------------------------------------*/
+
+void
+LogFile::change_header(const char *header)
+{
+  ats_free(m_header);
+  m_header = ats_strdup(header);
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::open
+
+  Open the logfile for append access.  This will create a logfile if the
+  file does not already exist.
+  -------------------------------------------------------------------------*/
+
+int
+LogFile::open_file()
+{
+  if (is_open()) {
+    return LOG_FILE_NO_ERROR;
+  }
+
+  if (m_name && !strcmp(m_name, "stdout")) {
+    m_fd = STDOUT_FILENO;
+    return LOG_FILE_NO_ERROR;
+  }
+  //
+  // Check to see if the file exists BEFORE we try to open it, since
+  // opening it will also create it.
+  //
+  bool file_exists = LogFile::exists(m_name);
+
+  if (file_exists) {
+    if (!m_meta_info) {
+      // This object must be fresh since it has not built its MetaInfo
+      // so we create a new MetaInfo object that will read right away
+      // (in the constructor) the corresponding metafile
+      //
+      m_meta_info = new MetaInfo(m_name);
+    }
+  } else {
+    // The log file does not exist, so we create a new MetaInfo object
+    //  which will save itself to disk right away (in the constructor)
+    m_meta_info = new MetaInfo(m_name, LogUtils::timestamp(), m_signature);
+  }
+
+  int flags, perms;
+
+  if (m_file_format == LOG_FILE_PIPE) {
+    if (mkfifo(m_name, S_IRUSR | S_IWUSR) < 0) {
+      if (errno != EEXIST) {
+        Error("Could not create named pipe %s for logging: %s", m_name, strerror(errno));
+        return LOG_FILE_COULD_NOT_CREATE_PIPE;
+      }
+    } else {
+      Debug("log-file", "Created named pipe %s for logging", m_name);
+    }
+    flags = O_WRONLY | O_NDELAY;
+    perms = 0;
+  } else {
+    flags = O_WRONLY | O_APPEND | O_CREAT;
+    perms = Log::config->logfile_perm;
+  }
+
+  Debug("log-file", "attempting to open %s", m_name);
+  m_fd =::open(m_name, flags, perms);
+
+  if (m_fd < 0) {
+    // if error happened because no process is reading the pipe don't
+    // complain, otherwise issue an error message
+    //
+    if (errno != ENXIO) {
+      Error("Error opening log file %s: %s", m_name, strerror(errno));
+      return LOG_FILE_COULD_NOT_OPEN_FILE;
+    }
+    Debug("log-file", "no readers for pipe %s", m_name);
+    return LOG_FILE_NO_PIPE_READERS;
+  }
+
+  int e = do_filesystem_checks();
+  if (e != 0) {
+    m_fd = -1;                  // reset to error condition
+    return LOG_FILE_FILESYSTEM_CHECKS_FAILED;
+  }
+
+  // set m_bytes_written to force the rolling based on filesize.
+  m_bytes_written = lseek( m_fd, 0, SEEK_CUR );
+
+  Debug("log-file", "LogFile %s is now open (fd=%d)", m_name, m_fd);
+
+  //
+  // If we've opened the file and it didn't already exist, then this is a
+  // "new" file and we need to make some initializations.  This is the
+  // time to write any headers and do any one-time initialization of the
+  // file.
+  //
+  if (!file_exists) {
+    if (m_file_format != LOG_FILE_BINARY && m_header != NULL) {
+      Debug("log-file", "writing header to LogFile %s", m_name);
+      writeln(m_header, strlen(m_header), m_fd, m_name);
+    }
+  }
+
+  RecIncrRawStat(log_rsb, this_thread()->mutex->thread_holding,
+                 log_stat_log_files_open_stat, 1);
+
+  return LOG_FILE_NO_ERROR;
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::close
+
+  Close the current logfile.
+  -------------------------------------------------------------------------*/
+
+void
+LogFile::close_file()
+{
+  if (is_open()) {
+    ::close(m_fd);
+    Debug("log-file", "LogFile %s (fd=%d) is closed", m_name, m_fd);
+    m_fd = -1;
+
+    RecIncrRawStat(log_rsb, this_thread()->mutex->thread_holding,
+                   log_stat_log_files_open_stat, -1);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::rolled_logfile
+
+  This function will return true if the given filename corresponds to a
+  rolled logfile.  We make this determination based on the file extension.
+  -------------------------------------------------------------------------*/
+
+bool LogFile::rolled_logfile(char *path)
+{
+  const int
+    target_len = (int) strlen(LOGFILE_ROLLED_EXTENSION);
+  int
+    len = (int) strlen(path);
+  if (len > target_len) {
+    char *
+      str = &path[len - target_len];
+    if (!strcmp(str, LOGFILE_ROLLED_EXTENSION)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::roll
+
+  This function is called by a LogObject to roll its files.  The
+  tricky part to this routine is in coming up with the new file name,
+  which contains the bounding timestamp interval for the entries
+  within the file.
+
+  Under normal operating conditions, this LogFile object was in existence
+  for all writes to the file.  In this case, the LogFile members m_start_time
+  and m_end_time will have the starting and ending times for the actual
+  entries written to the file.
+
+  On restart situations, it is possible to re-open an existing logfile,
+  which means that the m_start_time variable will be later than the actual
+  entries recorded in the file.  In this case, we'll use the creation time
+  of the file, which should be recorded in the meta-information located on
+  disk.
+
+  If we can't use the meta-file, either because it's not there or because
+  it's not valid, then we'll use timestamp 0 (Jan 1, 1970) as the starting
+  bound.
+
+  Return 1 if file rolled, 0 otherwise
+  -------------------------------------------------------------------------*/
+
+int
+LogFile::roll(long interval_start, long interval_end)
+{
+  //
+  // First, let's see if a roll is even needed.
+  //
+  if (m_name == NULL || !LogFile::exists(m_name)) {
+    Debug("log-file", "Roll not needed for %s; file doesn't exist", (m_name) ? m_name : "no_name");
+    return 0;
+  }
+  // Read meta info if needed (if file was not opened)
+  //
+  if (!m_meta_info) {
+    m_meta_info = new MetaInfo(m_name);
+  }
+  //
+  // Create the new file name, which consists of a timestamp and rolled
+  // extension added to the previous file name.  The timestamp format is
+  // ".%Y%m%d.%Hh%Mm%Ss-%Y%m%d.%Hh%Mm%Ss", where the two date/time values
+  // represent the starting and ending times for entries in the rolled
+  // log file.  In addition, we add the hostname.  So, the entire rolled
+  // format is something like:
+  //
+  //    "squid.log.mymachine.19980712.12h00m00s-19980713.12h00m00s.old"
+  //
+  char roll_name[MAXPATHLEN];
+  char start_time_ext[64];
+  char end_time_ext[64];
+  time_t start, end;
+
+  //
+  // Make sure the file is closed so we don't leak any descriptors.
+  //
+  close_file();
+
+  //
+  // Start with conservative values for the start and end bounds, then
+  // try to refine.
+  //
+  start = 0L;
+  end = (interval_end >= m_end_time) ? interval_end : m_end_time;
+
+  if (m_meta_info->data_from_metafile()) {
+    //
+    // If the metadata came from the metafile, this means that
+    // the file was preexisting, so we can't use m_start_time for
+    // our starting bounds.  Instead, we'll try to use the file
+    // creation time stored in the metafile (if it's valid and we can
+    // read it).  If all else fails, we'll use 0 for the start time.
+    //
+    m_meta_info->get_creation_time(&start);
+  } else {
+    //
+    // The logfile was not preexisting (normal case), so we'll use
+    // earlier of the interval start time and the m_start_time.
+    //
+    // note that m_start_time is not the time of the first
+    // transaction, but the time of the creation of the first log
+    // buffer used by the file. These times may be different,
+    // especially under light load, and using the m_start_time may
+    // produce overlapping filenames (the problem is that we have
+    // no easy way of keeping track of the timestamp of the first
+    // transaction
+    //
+    start = (m_start_time < interval_start) ? m_start_time : interval_start;
+  }
+
+  //
+  // Now that we have our timestamp values, convert them to the proper
+  // timestamp formats and create the rolled file name.
+  //
+  LogUtils::timestamp_to_str((long) start, start_time_ext, 64);
+  LogUtils::timestamp_to_str((long) end, end_time_ext, 64);
+  snprintf(roll_name, MAXPATHLEN, "%s%s%s.%s-%s%s",
+               m_name,
+               LOGFILE_SEPARATOR_STRING,
+               Machine::instance()->hostname, start_time_ext, end_time_ext, LOGFILE_ROLLED_EXTENSION);
+
+  //
+  // It may be possible that the file we want to roll into already
+  // exists.  If so, then we need to add a version tag to the rolled
+  // filename as well so that we don't clobber existing files.
+  //
+
+  int version = 1;
+  while (LogFile::exists(roll_name)) {
+    Note("The rolled file %s already exists; adding version "
+         "tag %d to avoid clobbering the existing file.", roll_name, version);
+    snprintf(roll_name, MAXPATHLEN, "%s%s%s.%s-%s.%d%s",
+                 m_name,
+                 LOGFILE_SEPARATOR_STRING,
+                 Machine::instance()->hostname, start_time_ext, end_time_ext, version, LOGFILE_ROLLED_EXTENSION);
+    version++;
+  }
+
+  //
+  // It's now safe to rename the file.
+  //
+
+  if (::rename(m_name, roll_name) < 0) {
+    Warning("Traffic Server could not rename logfile %s to %s, error %d: "
+            "%s.", m_name, roll_name, errno, strerror(errno));
+    return 0;
+  }
+  // reset m_start_time
+  //
+  m_start_time = 0;
+  m_bytes_written = 0;
+
+  Debug("log-file", "The logfile %s was rolled to %s.", m_name, roll_name);
+
+  return 1;
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::preproc_and_try_delete
+
+  preprocess the given buffer data before write to target file
+  and try to delete it when its reference become zero.
+  -------------------------------------------------------------------------*/
+int
+LogFile::preproc_and_try_delete(LogBuffer * lb)
+{
+  int ret = -1;
+  LogBufferHeader *buffer_header;
+
+  if (lb == NULL) {
+    Note("Cannot write LogBuffer to LogFile %s; LogBuffer is NULL", m_name);
+    return -1;
+  }
+
+  ink_atomic_increment(&lb->m_references, 1);
+
+  if ((buffer_header = lb->header()) == NULL) {
+    Note("Cannot write LogBuffer to LogFile %s; LogBufferHeader is NULL",
+        m_name);
+    goto done;
+  }
+  if (buffer_header->entry_count == 0) {
+    // no bytes to write
+    Note("LogBuffer with 0 entries for LogFile %s, nothing to write", m_name);
+    goto done;
+  }
+
+  //
+  // If the start time for this file has yet to be established, then grab
+  // the low_timestamp from the given LogBuffer.  Then, we always set the
+  // end time to the high_timestamp, so it's always up to date.
+  //
+  if (!m_start_time)
+    m_start_time = buffer_header->low_timestamp;
+  m_end_time = buffer_header->high_timestamp;
+
+  if (m_file_format == LOG_FILE_BINARY) {
+    //
+    // Ok, now we need to write the binary buffer to the file, and we
+    // can do so in one swift write.  The question is, do we write the
+    // LogBufferHeader with each buffer or not?  The answer is yes.
+    // Even though we'll be puttint down redundant data (things that
+    // don't change between buffers), it's not worth trying to separate
+    // out the buffer-dependent data from the buffer-independent data.
+    //
+    LogFlushData *flush_data = new LogFlushData(this, lb);
+
+    ProxyMutex *mutex = this_thread()->mutex;
+
+    RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_num_flush_to_disk_stat,
+                   lb->header()->entry_count);
+
+    RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_bytes_flush_to_disk_stat,
+                   lb->header()->byte_count);
+
+    ink_atomiclist_push(Log::flush_data_list, flush_data);
+
+    Log::flush_notify->signal();
+
+    //
+    // LogBuffer will be deleted in flush thread
+    //
+    return 0;
+  }
+  else if (m_file_format == LOG_FILE_ASCII || m_file_format == LOG_FILE_PIPE) {
+    write_ascii_logbuffer3(buffer_header);
+    ret = 0;
+  }
+  else {
+    Note("Cannot write LogBuffer to LogFile %s; invalid file format: %d",
+         m_name, m_file_format);
+  }
+
+done:
+  LogBuffer::destroy(lb);
+  return ret;
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::write_ascii_logbuffer
+
+  This routine takes the given LogBuffer and writes it (in ASCII) to the
+  given file descriptor.  Written as a stand-alone function, it can be
+  called from either the local LogBuffer::write routine from inside of the
+  proxy, or from an external program (since it is a static function).  The
+  return value is the number of bytes written.
+  -------------------------------------------------------------------------*/
+
+int
+LogFile::write_ascii_logbuffer(LogBufferHeader * buffer_header, int fd, const char *path, const char *alt_format)
+{
+  ink_assert(buffer_header != NULL);
+  ink_assert(fd >= 0);
+
+  char fmt_buf[LOG_MAX_FORMATTED_BUFFER];
+  char fmt_line[LOG_MAX_FORMATTED_LINE];
+  LogBufferIterator iter(buffer_header);
+  LogEntryHeader *entry_header;
+  int fmt_buf_bytes = 0;
+  int fmt_line_bytes = 0;
+  int bytes = 0;
+
+  LogFormatType format_type;
+  char *fieldlist_str;
+  char *printf_str;
+
+  switch (buffer_header->version) {
+  case LOG_SEGMENT_VERSION:
+    format_type = (LogFormatType) buffer_header->format_type;
+
+    fieldlist_str = buffer_header->fmt_fieldlist();
+    printf_str = buffer_header->fmt_printf();
+    break;
+
+  default:
+    Note("Invalid LogBuffer version %d in write_ascii_logbuffer; "
+         "current version is %d", buffer_header->version, LOG_SEGMENT_VERSION);
+    return 0;
+  }
+
+  while ((entry_header = iter.next())) {
+    fmt_line_bytes = LogBuffer::to_ascii(entry_header, format_type,
+                                         &fmt_line[0], LOG_MAX_FORMATTED_LINE,
+                                         fieldlist_str, printf_str, buffer_header->version, alt_format);
+    ink_assert(fmt_line_bytes > 0);
+
+    if (fmt_line_bytes > 0) {
+      if ((fmt_line_bytes + fmt_buf_bytes) >= LOG_MAX_FORMATTED_BUFFER) {
+        if (!Log::config->logging_space_exhausted) {
+          bytes += writeln(fmt_buf, fmt_buf_bytes, fd, path);
+        }
+        fmt_buf_bytes = 0;
+      }
+      ink_assert(fmt_buf_bytes < LOG_MAX_FORMATTED_BUFFER);
+      ink_assert(fmt_line_bytes < LOG_MAX_FORMATTED_BUFFER - fmt_buf_bytes);
+      memcpy(&fmt_buf[fmt_buf_bytes], fmt_line, fmt_line_bytes);
+      fmt_buf_bytes += fmt_line_bytes;
+      ink_assert(fmt_buf_bytes < LOG_MAX_FORMATTED_BUFFER);
+      fmt_buf[fmt_buf_bytes] = '\n';    // keep entries separate
+      fmt_buf_bytes += 1;
+    }
+  }
+  if (fmt_buf_bytes > 0) {
+    if (!Log::config->logging_space_exhausted) {
+      ink_assert(fmt_buf_bytes < LOG_MAX_FORMATTED_BUFFER);
+      bytes += writeln(fmt_buf, fmt_buf_bytes, fd, path);
+    }
+  }
+
+  return bytes;
+}
+
+int
+LogFile::write_ascii_logbuffer3(LogBufferHeader * buffer_header, const char *alt_format)
+{
+  Debug("log-file", "entering LogFile::write_ascii_logbuffer3 for %s " "(this=%p)", m_name, this);
+  ink_assert(buffer_header != NULL);
+
+  ProxyMutex *mutex = this_thread()->mutex;
+  LogBufferIterator iter(buffer_header);
+  LogEntryHeader *entry_header;
+  int fmt_entry_count = 0;
+  int fmt_buf_bytes = 0;
+  int total_bytes = 0;
+
+  LogFormatType format_type;
+  char *fieldlist_str;
+  char *printf_str;
+  char *ascii_buffer;
+
+  switch (buffer_header->version) {
+  case LOG_SEGMENT_VERSION:
+    format_type = (LogFormatType) buffer_header->format_type;
+    fieldlist_str = buffer_header->fmt_fieldlist();
+    printf_str = buffer_header->fmt_printf();
+    break;
+
+  default:
+    Note("Invalid LogBuffer version %d in write_ascii_logbuffer; "
+         "current version is %d", buffer_header->version, LOG_SEGMENT_VERSION);
+    return 0;
+  }
+
+  while ((entry_header = iter.next())) {
+    fmt_entry_count = 0;
+    fmt_buf_bytes = 0;
+
+    if (m_file_format == LOG_FILE_PIPE)
+      ascii_buffer = (char *)malloc(m_max_line_size);
+    else
+      ascii_buffer = (char *)malloc(m_ascii_buffer_size);
+
+    // fill the buffer with as many records as possible
+    //
+    do {
+      if (entry_header->entry_len >= m_max_line_size) {
+        Warning("Log is too long(%" PRIu32 "), it would be truncated. max_len:%zu",
+                entry_header->entry_len, m_max_line_size);
+      }
+
+      int bytes = LogBuffer::to_ascii(entry_header, format_type,
+                                      &ascii_buffer[fmt_buf_bytes],
+                                      m_max_line_size - 1,
+                                      fieldlist_str, printf_str,
+                                      buffer_header->version,
+                                      alt_format);
+
+      if (bytes > 0) {
+        fmt_buf_bytes += bytes;
+        ascii_buffer[fmt_buf_bytes] = '\n';
+        ++fmt_buf_bytes;
+        ++fmt_entry_count;
+      } else {
+        Error("Failed to convert LogBuffer to ascii, have dropped (%" PRIu32 ") bytes.",
+              entry_header->entry_len);
+
+        RecIncrRawStat(log_rsb, mutex->thread_holding,
+                       log_stat_num_lost_before_flush_to_disk_stat,
+                       fmt_entry_count);
+
+        RecIncrRawStat(log_rsb, mutex->thread_holding,
+                       log_stat_bytes_lost_before_flush_to_disk_stat,
+                       fmt_buf_bytes);
+      }
+      // if writing to a pipe, fill the buffer with a single
+      // record to avoid as much as possible overflowing the
+      // pipe buffer
+      //
+      if (m_file_format == LOG_FILE_PIPE)
+        break;
+
+      if (m_ascii_buffer_size - fmt_buf_bytes < m_max_line_size)
+        break;
+    } while ((entry_header = iter.next()));
+
+    // send the buffer to flush thread
+    //
+    LogFlushData *flush_data = new LogFlushData(this, ascii_buffer, fmt_buf_bytes);
+
+    RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_num_flush_to_disk_stat,
+                   fmt_entry_count);
+
+    RecIncrRawStat(log_rsb, mutex->thread_holding, log_stat_bytes_flush_to_disk_stat,
+                   fmt_buf_bytes);
+
+    ink_atomiclist_push(Log::flush_data_list, flush_data);
+
+    Log::flush_notify->signal();
+
+    total_bytes += fmt_buf_bytes;
+  }
+
+  return total_bytes;
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::writeln
+
+  This function will make sure the following data is written to the
+  output file (m_fd) with a trailing newline.
+  -------------------------------------------------------------------------*/
+
+int
+LogFile::writeln(char *data, int len, int fd, const char *path)
+{
+  int total_bytes = 0;
+
+  if (len > 0 && data && fd >= 0) {
+    struct iovec wvec[2];
+    memset(&wvec, 0, sizeof(iovec));
+    memset(&wvec[1], 0, sizeof(iovec));
+    int bytes_this_write, vcnt = 1;
+
+#if defined(solaris)
+    wvec[0].iov_base = (caddr_t) data;
+#else
+    wvec[0].iov_base = (void *) data;
+#endif
+    wvec[0].iov_len = (size_t) len;
+
+    if (data[len - 1] != '\n') {
+#if defined(solaris)
+      wvec[1].iov_base = (caddr_t) "\n";
+#else
+      wvec[1].iov_base = (void *) "\n";
+#endif
+      wvec[1].iov_len = (size_t) 1;
+      vcnt++;
+    }
+
+    if ((bytes_this_write = (int)::writev(fd, (const struct iovec *) wvec, vcnt)) < 0) {
+      Warning("An error was encountered in writing to %s: %s.", ((path) ? path : "logfile"), strerror(errno));
+    } else
+      total_bytes = bytes_this_write;
+  }
+  return total_bytes;
+}
+
+/*-------------------------------------------------------------------------
+  LogFile::check_fd
+
+  This routine will occasionally stat the current logfile to make sure that
+  it really does exist.  The easiest way to do this is to close the file
+  and re-open it, which will create the file if it doesn't already exist.
+
+  Failure to open the logfile will generate a manager alarm and a Warning.
+  -------------------------------------------------------------------------*/
+
+void
+LogFile::check_fd()
+{
+  static bool failure_last_call = false;
+  static unsigned stat_check_count = 1;
+
+  if ((stat_check_count % Log::config->file_stat_frequency) == 0) {
+    //
+    // It's time to see if the file really exists.  If we can't see
+    // the file (via access), then we'll close our descriptor and
+    // attept to re-open it, which will create the file if it's not
+    // there.
+    //
+    if (m_name && !LogFile::exists(m_name)) {
+      close_file();
+    }
+    stat_check_count = 0;
+  }
+  stat_check_count++;
+
+  int err = open_file();
+  // XXX if open_file() returns, LOG_FILE_FILESYSTEM_CHECKS_FAILED, raise a more informative alarm ...
+  if (err != LOG_FILE_NO_ERROR && err != LOG_FILE_NO_PIPE_READERS) {
+    if (!failure_last_call) {
+      LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, "Traffic Server could not open logfile %s.", m_name);
+      Warning("Traffic Server could not open logfile %s: %s.", m_name, strerror(errno));
+    }
+    failure_last_call = true;
+    return;
+  }
+
+  failure_last_call = false;
+}
+
+void
+LogFile::display(FILE * fd)
+{
+  fprintf(fd, "Logfile: %s, %s\n", get_name(), (is_open())? "file is open" : "file is not open");
+}
+
+/***************************************************************************
+ LogFileList IS NOT USED
+****************************************************************************/
+
+
+/****************************************************************************
+
+  MetaInfo methods
+
+*****************************************************************************/
+
+void
+MetaInfo::_build_name(const char *filename)
+{
+  int i = -1, l = 0;
+  char c;
+  while (c = filename[l], c != 0) {
+    if (c == '/') {
+      i = l;
+    }
+    ++l;
+  }
+
+  // 7 = 1 (dot at beginning) + 5 (".meta") + 1 (null terminating)
+  //
+  _filename = (char *)ats_malloc(l + 7);
+
+  if (i < 0) {
+    ink_string_concatenate_strings(_filename, ".", filename, ".meta", NULL);
+  } else {
+    memcpy(_filename, filename, i + 1);
+    ink_string_concatenate_strings(&_filename[i + 1], ".", &filename[i + 1]
+                                   , ".meta", NULL);
+  }
+}
+
+void
+MetaInfo::_read_from_file()
+{
+  _flags |= DATA_FROM_METAFILE;
+  int fd = open(_filename, O_RDONLY);
+  if (fd <= 0) {
+    Warning("Could not open metafile %s for reading: %s", _filename, strerror(errno));
+  } else {
+    _flags |= FILE_OPEN_SUCCESSFUL;
+    SimpleTokenizer tok('=', SimpleTokenizer::OVERWRITE_INPUT_STRING);
+    int line_number = 1;
+    while (ink_file_fd_readline(fd, BUF_SIZE, _buffer) > 0) {
+      tok.setString(_buffer);
+      char *t = tok.getNext();
+      if (t) {
+        if (strcmp(t, "creation_time") == 0) {
+          t = tok.getNext();
+          if (t) {
+            _creation_time = (time_t) ink_atoi64(t);
+            _flags |= VALID_CREATION_TIME;
+          }
+        } else if (strcmp(t, "object_signature") == 0) {
+          t = tok.getNext();
+          if (t) {
+            _log_object_signature = ink_atoi64(t);
+            _flags |= VALID_SIGNATURE;
+            Debug("log-meta", "MetaInfo::_read_from_file\n"
+                  "\tfilename = %s\n"
+                  "\tsignature string = %s\n" "\tsignature value = %" PRIu64 "", _filename, t, _log_object_signature);
+          }
+        } else if (line_number == 1) {
+          ink_release_assert(!"no panda support");
+        }
+      }
+      ++line_number;
+    }
+    close(fd);
+  }
+}
+
+void
+MetaInfo::_write_to_file()
+{
+  int fd = open(_filename, O_WRONLY | O_CREAT | O_TRUNC,
+                Log::config->logfile_perm);
+
+  if (fd <= 0) {
+    Warning("Could not open metafile %s for writing: %s", _filename, strerror(errno));
+  } else {
+    int n;
+    if (_flags & VALID_CREATION_TIME) {
+      n = snprintf(_buffer, BUF_SIZE, "creation_time = %lu\n", (unsigned long) _creation_time);
+      // TODO modify this runtime check so that it is not an assertion
+      ink_release_assert(n <= BUF_SIZE);
+      if (write(fd, _buffer, n) == -1) {
+        Warning("Could not write creation_time");
+      }
+    }
+    if (_flags & VALID_SIGNATURE) {
+      n = snprintf(_buffer, BUF_SIZE, "object_signature = %" PRIu64 "\n", _log_object_signature);
+      // TODO modify this runtime check so that it is not an assertion
+      ink_release_assert(n <= BUF_SIZE);
+      if (write(fd, _buffer, n) == -1) {
+        Warning("Could not write object_signaure");
+      }
+      Debug("log-meta", "MetaInfo::_write_to_file\n"
+            "\tfilename = %s\n"
+            "\tsignature value = %" PRIu64 "\n" "\tsignature string = %s", _filename, _log_object_signature, _buffer);
+    }
+  }
+  close(fd);
+}
diff --git a/proxy/logging/LogFile.h b/proxy/logging/LogFile.h
new file mode 100644
index 00000000..1f8c275e
--- /dev/null
+++ b/proxy/logging/LogFile.h
@@ -0,0 +1,207 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_FILE_H
+#define LOG_FILE_H
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "libts.h"
+#include "LogBufferSink.h"
+
+class LogSock;
+class LogBuffer;
+struct LogBufferHeader;
+class LogObject;
+
+#define LOGFILE_ROLLED_EXTENSION ".old"
+#define LOGFILE_SEPARATOR_STRING "_"
+
+/*-------------------------------------------------------------------------
+  MetaInfo
+
+  Meta information for LogFile
+  -------------------------------------------------------------------------*/
+class MetaInfo
+{
+public:
+  enum
+  {
+    DATA_FROM_METAFILE = 1,     // metadata was read (or attempted to)
+    // from metafile
+    VALID_CREATION_TIME = 2,    // creation time is valid
+    VALID_SIGNATURE = 4,        // signature is valid
+    // (i.e., creation time only)
+    FILE_OPEN_SUCCESSFUL = 8   // metafile was opened successfully
+  };
+
+  enum
+  {
+    BUF_SIZE = 640              // size of read/write buffer
+  };
+
+private:
+  char *_filename;              // the name of the meta file
+  time_t _creation_time;        // file creation time
+  uint64_t _log_object_signature; // log object signature
+  int _flags;                   // metainfo status flags
+  char _buffer[BUF_SIZE];       // read/write buffer
+
+  void _read_from_file();
+  void _write_to_file();
+  void _build_name(const char *filename);
+
+public:
+ MetaInfo(const char *filename)
+   : _flags(0)
+  {
+    _build_name(filename);
+    _read_from_file();
+  }
+
+  MetaInfo(char *filename, time_t creation, uint64_t signature)
+    : _creation_time(creation), _log_object_signature(signature), _flags(VALID_CREATION_TIME | VALID_SIGNATURE)
+  {
+    _build_name(filename);
+    _write_to_file();
+  }
+
+  ~MetaInfo()
+  {
+    ats_free(_filename);
+  }
+
+  bool get_creation_time(time_t * time)
+  {
+    if (_flags & VALID_CREATION_TIME) {
+      *time = _creation_time;
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  bool get_log_object_signature(uint64_t * signature)
+  {
+    if (_flags & VALID_SIGNATURE) {
+      *signature = _log_object_signature;
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  bool data_from_metafile() const { return (_flags & DATA_FROM_METAFILE ? true : false); }
+  bool file_open_successful() { return (_flags & FILE_OPEN_SUCCESSFUL ? true : false); }
+};
+
+/*-------------------------------------------------------------------------
+  LogFile
+  -------------------------------------------------------------------------*/
+
+class LogFile:public LogBufferSink, public RefCountObj
+{
+public:
+  LogFile(const char *name, const char *header, LogFileFormat format, uint64_t signature,
+          size_t ascii_buffer_size = 4 * 9216, size_t max_line_size = 9216);
+  LogFile(const LogFile &);
+  ~LogFile();
+
+  enum
+  {
+    LOG_FILE_NO_ERROR = 0,
+    LOG_FILE_NO_PIPE_READERS,
+    LOG_FILE_COULD_NOT_CREATE_PIPE,
+    LOG_FILE_PIPE_MODE_NOT_SUPPORTED,
+    LOG_FILE_COULD_NOT_OPEN_FILE,
+    LOG_FILE_FILESYSTEM_CHECKS_FAILED
+  };
+
+  int preproc_and_try_delete(LogBuffer * lb);
+
+  int roll(long interval_start, long interval_end);
+
+  const char *get_name() const { return m_name; }
+
+  void change_header(const char *header);
+  void change_name(const char *new_name);
+
+  LogFileFormat get_format() const { return m_file_format; }
+  const char *get_format_name() const {
+    return (m_file_format == LOG_FILE_BINARY ? "binary" : (m_file_format == LOG_FILE_PIPE ? "ascii_pipe" : "ascii"));
+  }
+
+  static int write_ascii_logbuffer(LogBufferHeader * buffer_header, int fd, const char *path, const char *alt_format = NULL);
+  int write_ascii_logbuffer3(LogBufferHeader * buffer_header, const char *alt_format = NULL);
+  static bool rolled_logfile(char *file);
+  static bool exists(const char *pathname);
+
+  void display(FILE * fd = stdout);
+  int open_file();
+
+  off_t get_size_bytes() const { return m_file_format != LOG_FILE_PIPE? m_bytes_written : 0; };
+  int do_filesystem_checks() { return 0; }; // TODO: this need to be tidy up when to redo the file checking
+
+public:
+  bool is_open() { return (m_fd >= 0); }
+  void close_file();
+
+  void check_fd();
+  static int writeln(char *data, int len, int fd, const char *path);
+  void read_metadata();
+
+public:
+  LogFileFormat m_file_format;
+private:
+  char *m_name;
+public:
+  char *m_header;
+  uint64_t m_signature;           // signature of log object stored
+  MetaInfo *m_meta_info;
+
+  size_t m_ascii_buffer_size;   // size of ascii buffer
+  size_t m_max_line_size;       // size of longest log line (record)
+
+  int m_fd;
+  long m_start_time;
+  long m_end_time;
+  volatile uint64_t m_bytes_written;
+  off_t m_size_bytes;           // current size of file in bytes
+
+public:
+  Link<LogFile> link;
+
+private:
+  // -- member functions not allowed --
+  LogFile();
+  LogFile & operator=(const LogFile &);
+};
+
+/***************************************************************************
+ LogFileList IS NOT USED
+****************************************************************************/
+
+#endif
diff --git a/proxy/logging/LogFilter.cc b/proxy/logging/LogFilter.cc
new file mode 100644
index 00000000..69147452
--- /dev/null
+++ b/proxy/logging/LogFilter.cc
@@ -0,0 +1,821 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogFilter.cc
+
+
+ ***************************************************************************/
+#include "libts.h"
+
+#include "Error.h"
+#include "LogUtils.h"
+#include "LogFilter.h"
+#include "LogField.h"
+#include "LogFormat.h"
+#include "LogFile.h"
+#include "LogBuffer.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "Log.h"
+//#include "ink_ctype.h"
+#include "SimpleTokenizer.h"
+
+const char *LogFilter::OPERATOR_NAME[] = { "MATCH", "CASE_INSENSITIVE_MATCH","CONTAIN", "CASE_INSENSITIVE_CONTAIN" };
+const char *LogFilter::ACTION_NAME[] = { "REJECT", "ACCEPT", "WIPE_FIELD_VALUE" };
+
+/*-------------------------------------------------------------------------
+  LogFilter::LogFilter
+
+  note: it may be convenient to have the LogFilter constructor access the
+  global_field_list to get the log field, but this is an unnecessary dependency
+  between the classes and I think should be removed.     ltavera
+  -------------------------------------------------------------------------*/
+LogFilter::LogFilter(const char *name, LogField * field, LogFilter::Action action, LogFilter::Operator oper)
+  : m_name(ats_strdup(name)), m_field(NULL) , m_action(action), m_operator(oper), m_type(INT_FILTER), m_num_values(0)
+{
+  m_field = new LogField(*field);
+  ink_assert(m_field);
+}
+
+/*-------------------------------------------------------------------------
+  LogFilter::~LogFilter
+  -------------------------------------------------------------------------*/
+LogFilter::~LogFilter()
+{
+  ats_free(m_name);
+  delete m_field;
+}
+
+
+/*-------------------------------------------------------------------------
+  LogFilterString::LogFilterString
+  -------------------------------------------------------------------------*/
+void
+LogFilterString::_setValues(size_t n, char **value)
+{
+  m_type = STRING_FILTER;
+  m_num_values = n;
+  if (n) {
+    m_value = new char *[n];
+    m_value_uppercase = new char *[n];
+    m_length = new size_t[n];
+    ink_assert(m_value && m_value_uppercase && m_length);
+    for (size_t i = 0; i < n; ++i) {
+      m_value[i] = ats_strdup(value[i]);
+      m_length[i] = strlen(value[i]);
+      m_value_uppercase[i] = (char *)ats_malloc((unsigned int) m_length[i] + 1);
+      size_t j;
+      for (j = 0; j < m_length[i]; ++j) {
+        m_value_uppercase[i][j] = ParseRules::ink_toupper(m_value[i][j]);
+      }
+      m_value_uppercase[i][j] = 0;
+    }
+  }
+}
+
+
+LogFilterString::LogFilterString(const char *name, LogField * field,
+                                 LogFilter::Action action, LogFilter::Operator oper, char *values)
+  : LogFilter(name, field, action, oper)
+{
+  // parse the comma-separated list of values and construct array
+  //
+  char **val_array = 0;
+  size_t i = 0;
+  SimpleTokenizer tok(values, ',');
+  size_t n = tok.getNumTokensRemaining();
+  if (n) {
+    val_array = new char *[n];
+    char *t;
+    while (t = tok.getNext(), t != NULL) {
+      val_array[i++] = t;
+    }
+    if (i < n) {
+      Warning("There were invalid values in the definition of filter %s"
+              "only %zu out of %zu values will be used", name, i, n);
+    }
+  }
+  _setValues(i, val_array);
+  delete[]val_array;
+}
+
+LogFilterString::LogFilterString(const char *name, LogField * field,
+                                 LogFilter::Action action, LogFilter::Operator oper, size_t num_values, char **value)
+  : LogFilter(name, field, action, oper)
+{
+  _setValues(num_values, value);
+}
+
+LogFilterString::LogFilterString(const LogFilterString & rhs)
+  : LogFilter(rhs.m_name, rhs.m_field, rhs.m_action, rhs.m_operator)
+{
+  _setValues(rhs.m_num_values, rhs.m_value);
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterString::~LogFilterString
+  -------------------------------------------------------------------------*/
+
+LogFilterString::~LogFilterString()
+{
+  if (m_num_values > 0) {
+    for (size_t i = 0; i < m_num_values; ++i) {
+      ats_free(m_value[i]);
+      ats_free(m_value_uppercase[i]);
+    }
+    delete[]m_value;
+    delete[]m_value_uppercase;
+    delete[]m_length;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterString::operator==
+
+  This operator is not very intelligent and expects the objects being
+  compared to have the same values specified *in the same order*.
+  Filters with the same values specified in different order are considered
+  to be different.
+
+  -------------------------------------------------------------------------*/
+
+bool
+LogFilterString::operator==(LogFilterString & rhs)
+{
+  if (m_type == rhs.m_type &&
+      *m_field == *rhs.m_field &&
+      m_action == rhs.m_action &&
+      m_operator == rhs.m_operator &&
+      m_num_values == rhs.m_num_values) {
+    for (size_t i = 0; i < m_num_values; i++) {
+      if (m_length[i] != rhs.m_length[i] ||
+          strncmp(m_value[i], rhs.m_value[i], m_length[i])) {
+        return false;
+      }
+    }
+    return true;
+  }
+  return false;
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterString::wipe_this_entry
+
+  For strings, we need to marshal the given string into a buffer so that we
+  can compare it with the filter value.  Most strings are snall, so we'll
+  only allocate space dynamically if the marshal_len is very large (eg,
+  URL).
+
+  The m_substr field tells us whether we can match based on substrings, or
+  whether we should compare the entire string.
+  -------------------------------------------------------------------------*/
+
+bool
+LogFilterString::wipe_this_entry(LogAccess * lad)
+{
+  if (m_num_values == 0 || m_field == NULL || lad == NULL || m_action != WIPE_FIELD_VALUE) {
+    return false;
+  }
+
+  static const unsigned BUFSIZE = 1024;
+  char small_buf[BUFSIZE];
+  char small_buf_upper[BUFSIZE];
+  char *big_buf = NULL;
+  char *big_buf_upper = NULL;
+  char *buf = small_buf;
+  char *buf_upper = small_buf_upper;
+  size_t marsh_len = m_field->marshal_len(lad);      // includes null termination
+
+  if (marsh_len > BUFSIZE) {
+    big_buf = (char *)ats_malloc((unsigned int) marsh_len);
+    buf = big_buf;
+  }
+
+  m_field->marshal(lad, buf);
+
+  bool cond_satisfied = false;
+  switch (m_operator) {
+  case MATCH:
+    // marsh_len is an upper bound on the length of the marshalled string
+    // because marsh_len counts padding and the eos. So for a MATCH
+    // operator, we use the DATA_LENGTH_LARGER length condition rather
+    // than DATA_LENGTH_EQUAL, which we would use if we had the actual
+    // length of the string. It is probably not worth computing the
+    // actual length, so we just use the fact that a MATCH is not possible
+    // when marsh_len <= (length of the filter string)
+    //
+    cond_satisfied = _checkConditionAndWipe(&strcmp, &buf, marsh_len, m_value, DATA_LENGTH_LARGER);
+    break;
+  case CASE_INSENSITIVE_MATCH:
+    cond_satisfied = _checkConditionAndWipe(&strcasecmp, &buf, marsh_len, m_value, DATA_LENGTH_LARGER);
+    break;
+  case CONTAIN:
+    cond_satisfied = _checkConditionAndWipe(&_isSubstring, &buf, marsh_len, m_value, DATA_LENGTH_LARGER);
+    break;
+  case CASE_INSENSITIVE_CONTAIN:
+    {
+      if (big_buf) {
+        big_buf_upper = (char *)ats_malloc((unsigned int) marsh_len);
+        buf_upper = big_buf_upper;
+      }
+      for (size_t i = 0; i < marsh_len; i++) {
+        buf_upper[i] = ParseRules::ink_toupper(buf[i]);
+      }
+      cond_satisfied = _checkConditionAndWipe(&_isSubstring, &buf_upper, marsh_len, m_value_uppercase, DATA_LENGTH_LARGER);
+      strcpy(buf, buf_upper);
+      break;
+    }
+  default:
+    ink_assert(!"INVALID FILTER OPERATOR");
+  }
+
+  ats_free(big_buf);
+  ats_free(big_buf_upper);
+
+  m_field->updateField(lad, buf, strlen(buf));
+  return cond_satisfied;
+}
+
+
+/*-------------------------------------------------------------------------
+  LogFilterString::toss_this_entry
+
+  For strings, we need to marshal the given string into a buffer so that we
+  can compare it with the filter value.  Most strings are snall, so we'll
+  only allocate space dynamically if the marshal_len is very large (eg,
+  URL).
+
+  The m_substr field tells us whether we can match based on substrings, or
+  whether we should compare the entire string.
+  -------------------------------------------------------------------------*/
+
+bool LogFilterString::toss_this_entry(LogAccess * lad)
+{
+  if (m_num_values == 0 || m_field == NULL || lad == NULL) {
+    return false;
+  }
+
+  static const unsigned BUFSIZE = 1024;
+  char small_buf[BUFSIZE];
+  char small_buf_upper[BUFSIZE];
+  char *big_buf = NULL;
+  char *big_buf_upper = NULL;
+  char *buf = small_buf;
+  char *buf_upper = small_buf_upper;
+  size_t marsh_len = m_field->marshal_len(lad);      // includes null termination
+
+  if (marsh_len > BUFSIZE) {
+    big_buf = (char *)ats_malloc((unsigned int) marsh_len);
+    buf = big_buf;
+  }
+
+  m_field->marshal(lad, buf);
+
+  bool
+    cond_satisfied = false;
+  switch (m_operator) {
+  case MATCH:
+    // marsh_len is an upper bound on the length of the marshalled string
+    // because marsh_len counts padding and the eos. So for a MATCH
+    // operator, we use the DATA_LENGTH_LARGER length condition rather
+    // than DATA_LENGTH_EQUAL, which we would use if we had the actual
+    // length of the string. It is probably not worth computing the
+    // actual length, so we just use the fact that a MATCH is not possible
+    // when marsh_len <= (length of the filter string)
+    //
+    cond_satisfied = _checkCondition(&strcmp, buf, marsh_len, m_value, DATA_LENGTH_LARGER);
+    break;
+  case CASE_INSENSITIVE_MATCH:
+    cond_satisfied = _checkCondition(&strcasecmp, buf, marsh_len, m_value, DATA_LENGTH_LARGER);
+    break;
+  case CONTAIN:
+    cond_satisfied = _checkCondition(&_isSubstring, buf, marsh_len, m_value, DATA_LENGTH_LARGER);
+    break;
+  case CASE_INSENSITIVE_CONTAIN:
+    {
+      if (big_buf) {
+        big_buf_upper = (char *)ats_malloc((unsigned int) marsh_len);
+        buf_upper = big_buf_upper;
+      }
+      for (size_t i = 0; i < marsh_len; i++) {
+        buf_upper[i] = ParseRules::ink_toupper(buf[i]);
+      }
+      cond_satisfied = _checkCondition(&_isSubstring, buf_upper, marsh_len, m_value_uppercase, DATA_LENGTH_LARGER);
+      break;
+    }
+  default:
+    ink_assert(!"INVALID FILTER OPERATOR");
+  }
+
+  ats_free(big_buf);
+  ats_free(big_buf_upper);
+
+  return ((m_action == REJECT && cond_satisfied) || (m_action == ACCEPT && !cond_satisfied));
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterString::display
+  -------------------------------------------------------------------------*/
+
+void
+LogFilterString::display(FILE * fd)
+{
+  ink_assert(fd != NULL);
+  if (m_num_values == 0) {
+    fprintf(fd, "Filter \"%s\" is inactive, no values specified\n", m_name);
+  } else {
+    fprintf(fd, "Filter \"%s\" %sS records if %s %s ", m_name,
+            ACTION_NAME[m_action], m_field->symbol(), OPERATOR_NAME[m_operator]);
+    fprintf(fd, "%s", m_value[0]);
+    for (size_t i = 1; i < m_num_values; ++i) {
+      fprintf(fd, ", %s", m_value[i]);
+    }
+    fprintf(fd, "\n");
+  }
+}
+
+void
+LogFilterString::display_as_XML(FILE * fd)
+{
+  ink_assert(fd != NULL);
+  fprintf(fd,
+          "<LogFilter>\n"
+          "  <Name      = \"%s\"/>\n"
+          "  <Action    = \"%s\"/>\n"
+          "  <Condition = \"%s %s ", m_name, ACTION_NAME[m_action], m_field->symbol(), OPERATOR_NAME[m_operator]);
+
+  if (m_num_values == 0) {
+    fprintf(fd, "<no values>\"\n");
+  } else {
+    fprintf(fd, "%s", m_value[0]);
+    for (size_t i = 1; i < m_num_values; ++i) {
+      fprintf(fd, ", %s", m_value[i]);
+    }
+    fprintf(fd, "\"/>\n");
+  }
+  fprintf(fd, "</LogFilter>\n");
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterInt::LogFilterInt
+  -------------------------------------------------------------------------*/
+
+void
+LogFilterInt::_setValues(size_t n, int64_t *value)
+{
+  m_type = INT_FILTER;
+  m_num_values = n;
+  if (n) {
+    m_value = new int64_t[n];
+    memcpy(m_value, value, n * sizeof(int64_t));
+  }
+}
+
+// TODO: ival should be int64_t
+int
+LogFilterInt::_convertStringToInt(char *value, int64_t *ival, LogFieldAliasMap * map)
+{
+  size_t i, l = strlen(value);
+  for (i = 0; i < l && ParseRules::is_digit(value[i]); i++);
+
+  if (i < l) {
+    // not all characters of value are digits, assume that
+    // value is an alias and try to get the actual integer value
+    // from the log field alias map if field has one
+    //
+    if (map == NULL || map->asInt(value, ival) != LogFieldAliasMap::ALL_OK) {
+      return -1;                // error
+    };
+  } else {
+    // all characters of value are digits, simply convert
+    // the string to int
+    //
+    *ival = ink_atoui(value);
+  }
+  return 0;                     // all OK
+}
+
+LogFilterInt::LogFilterInt(const char *name, LogField * field,
+                           LogFilter::Action action, LogFilter::Operator oper, int64_t value)
+ : LogFilter(name, field, action, oper)
+{
+  int64_t v[1];
+  v[0] = value;
+  _setValues(1, v);
+}
+
+LogFilterInt::LogFilterInt(const char *name, LogField * field,
+                           LogFilter::Action action, LogFilter::Operator oper, size_t num_values, int64_t *value)
+  : LogFilter(name, field, action, oper)
+{
+  _setValues(num_values, value);
+}
+
+LogFilterInt::LogFilterInt(const char *name, LogField * field,
+                           LogFilter::Action action, LogFilter::Operator oper, char *values)
+  : LogFilter(name, field, action, oper)
+{
+  // parse the comma-separated list of values and construct array
+  //
+  int64_t *val_array = 0;
+  size_t i = 0;
+  SimpleTokenizer tok(values, ',');
+  size_t n = tok.getNumTokensRemaining();
+
+  if (n) {
+    val_array = new int64_t[n];
+    char *t;
+    while (t = tok.getNext(), t != NULL) {
+      int64_t ival;
+      if (!_convertStringToInt(t, &ival, field->map())) {
+        // conversion was successful, add entry to array
+        //
+        val_array[i++] = ival;
+      }
+    }
+    if (i < n) {
+      Warning("There were invalid values in the definition of filter %s"
+              " only %zu out of %zu values will be used.", name, i, n);
+    }
+  } else {
+    Warning("No values in the definition of filter %s.", name);
+  }
+
+  _setValues(i, val_array);
+
+  if (n) {
+    delete[]val_array;
+  }
+}
+
+LogFilterInt::LogFilterInt(const LogFilterInt & rhs)
+  :
+LogFilter(rhs.m_name, rhs.m_field, rhs.m_action, rhs.m_operator)
+{
+  _setValues(rhs.m_num_values, rhs.m_value);
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterInt::~LogFilterInt
+  -------------------------------------------------------------------------*/
+
+LogFilterInt::~LogFilterInt()
+{
+  if (m_num_values > 0) {
+    delete[]m_value;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterInt::operator==
+
+  This operator is not very intelligent and expects the objects being
+  compared to have the same values specified *in the same order*.
+  Filters with the same values specified in different order are considered
+  to be different.
+
+  -------------------------------------------------------------------------*/
+
+bool LogFilterInt::operator==(LogFilterInt & rhs)
+{
+  if (m_type == rhs.m_type &&
+      * m_field == * rhs.m_field &&
+      m_action == rhs.m_action &&
+      m_operator == rhs.m_operator &&
+      m_num_values == rhs.m_num_values) {
+    for (size_t i = 0; i < m_num_values; i++) {
+      if (m_value[i] != rhs.m_value[i]) {
+        return false;
+      }
+    }
+    return true;
+  }
+  return false;
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterInt::wipe_this_entry
+  -------------------------------------------------------------------------*/
+
+bool
+LogFilterInt::wipe_this_entry(LogAccess * lad)
+{
+  if (m_num_values == 0 || m_field == NULL || lad == NULL || m_action != WIPE_FIELD_VALUE) {
+    return false;
+  }
+
+  bool cond_satisfied = false;
+  int64_t value;
+
+  m_field->marshal(lad, (char *) &value);
+  // This used to do an ntohl() on value, but that breaks various filters.
+  // Long term we should move IPs to their own log type.
+
+  // we don't use m_operator because we consider all operators to be
+  // equivalent to "MATCH" for an integer field
+  //
+
+  // most common case is single value, speed it up a little bit by unrolling
+  //
+  if (m_num_values == 1) {
+    cond_satisfied = (value == *m_value);
+  } else {
+    for (size_t i = 0; i < m_num_values; ++i) {
+      if (value == m_value[i]) {
+        cond_satisfied = true;
+        break;
+      }
+    }
+  }
+
+  return cond_satisfied;
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterInt::toss_this_entry
+  -------------------------------------------------------------------------*/
+
+bool LogFilterInt::toss_this_entry(LogAccess * lad)
+{
+  if (m_num_values == 0 || m_field == NULL || lad == NULL) {
+    return false;
+  }
+
+  bool cond_satisfied = false;
+  int64_t value;
+
+  m_field->marshal(lad, (char *) &value);
+  // This used to do an ntohl() on value, but that breaks various filters.
+  // Long term we should move IPs to their own log type.
+
+  // we don't use m_operator because we consider all operators to be
+  // equivalent to "MATCH" for an integer field
+  //
+
+  // most common case is single value, speed it up a little bit by unrolling
+  //
+  if (m_num_values == 1) {
+    cond_satisfied = (value == *m_value);
+  } else {
+    for (size_t i = 0; i < m_num_values; ++i) {
+      if (value == m_value[i]) {
+        cond_satisfied = true;
+        break;
+      }
+    }
+  }
+
+  return (m_action == REJECT && cond_satisfied) || (m_action == ACCEPT && !cond_satisfied);
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterInt::display
+  -------------------------------------------------------------------------*/
+
+void
+LogFilterInt::display(FILE * fd)
+{
+  ink_assert(fd != NULL);
+  if (m_num_values == 0) {
+    fprintf(fd, "Filter \"%s\" is inactive, no values specified\n", m_name);
+  } else {
+    fprintf(fd, "Filter \"%s\" %sS records if %s %s ", m_name,
+            ACTION_NAME[m_action], m_field->symbol(), OPERATOR_NAME[m_operator]);
+    fprintf(fd, "%" PRId64 "", m_value[0]);
+    for (size_t i = 1; i < m_num_values; ++i) {
+      fprintf(fd, ", %" PRId64 "", m_value[i]);
+    }
+    fprintf(fd, "\n");
+  }
+}
+
+void
+LogFilterInt::display_as_XML(FILE * fd)
+{
+  ink_assert(fd != NULL);
+  fprintf(fd,
+          "<LogFilter>\n"
+          "  <Name      = \"%s\"/>\n"
+          "  <Action    = \"%s\"/>\n"
+          "  <Condition = \"%s %s ", m_name, ACTION_NAME[m_action], m_field->symbol(), OPERATOR_NAME[m_operator]);
+
+  if (m_num_values == 0) {
+    fprintf(fd, "<no values>\"\n");
+  } else {
+    fprintf(fd, "%" PRId64 "", m_value[0]);
+    for (size_t i = 1; i < m_num_values; ++i) {
+      fprintf(fd, ", %" PRId64 "", m_value[i]);
+    }
+    fprintf(fd, "\"/>\n");
+  }
+  fprintf(fd, "</LogFilter>\n");
+}
+
+bool
+filters_are_equal(LogFilter * filt1, LogFilter * filt2)
+{
+  bool ret = false;
+
+  // TODO: we should check name here
+  if (filt1->type() == filt2->type()) {
+    if (filt1->type() == LogFilter::INT_FILTER) {
+      Debug("log-filter-compare", "int compare");
+      ret = (*((LogFilterInt *) filt1) == *((LogFilterInt *) filt2));
+    } else if (filt1->type() == LogFilter::STRING_FILTER) {
+      ret = (*((LogFilterString *) filt1) == *((LogFilterString *) filt2));
+    } else {
+      ink_assert(!"invalid filter type");
+    }
+  } else {
+    Debug("log-filter-compare", "type diff");
+  }
+  return ret;
+}
+
+/*-------------------------------------------------------------------------
+  LogFilterList
+
+  It is ASSUMED that each element on this list has been allocated from the
+  heap with "new" and that each element is on at most ONE list.  To enforce
+  this, we allow for copies to be made by the system, which is why the
+  add() function is overloaded for each sub-type of LogFilter.
+  -------------------------------------------------------------------------*/
+
+LogFilterList::LogFilterList():m_does_conjunction(true)
+{
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+LogFilterList::~LogFilterList()
+{
+  clear();
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+bool LogFilterList::operator==(LogFilterList & rhs)
+{
+  if (m_does_conjunction == rhs.does_conjunction()) {
+    LogFilter *f = first();
+    LogFilter *rhsf = rhs.first();
+
+    while (true) {
+      if (!(f || rhsf)) {
+        return true;
+      } else if (!f || !rhsf) {
+        return false;
+      } else if (!filters_are_equal(f, rhsf)) {
+        return false;
+      } else {
+        f = next(f);
+        rhsf = rhs.next(rhsf);
+      }
+    }
+  } else {
+    return false;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+LogFilterList::clear()
+{
+  LogFilter *f;
+  while ((f = m_filter_list.dequeue())) {
+    delete f;                   // safe given the semantics stated above
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+void
+LogFilterList::add(LogFilter * filter, bool copy)
+{
+  ink_assert(filter != NULL);
+  if (copy) {
+    if (filter->type() == LogFilter::INT_FILTER) {
+      LogFilterInt *f = new LogFilterInt(*((LogFilterInt *) filter));
+      m_filter_list.enqueue(f);
+    } else {
+      LogFilterString *f = new LogFilterString(*((LogFilterString *) filter));
+      m_filter_list.enqueue(f);
+    }
+  } else {
+    m_filter_list.enqueue(filter);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+bool
+LogFilterList::wipe_this_entry(LogAccess * lad)
+{
+  bool wipeFlag = false;
+    for (LogFilter * f = first(); f; f = next(f)) {
+      if (f->wipe_this_entry(lad)) {
+        wipeFlag = true;
+      }
+    }
+    return wipeFlag;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+bool LogFilterList::toss_this_entry(LogAccess * lad)
+{
+  if (m_does_conjunction) {
+    // toss if any filter rejects the entry (all filters should accept)
+    //
+    for (LogFilter * f = first(); f; f = next(f)) {
+      if (f->toss_this_entry(lad)) {
+        return true;
+      }
+    }
+    return false;
+  } else {
+    // toss if all filters reject the entry (any filter accepts)
+    //
+    for (LogFilter * f = first(); f; f = next(f)) {
+      if (!f->toss_this_entry(lad)) {
+        return false;
+      }
+    }
+    return true;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+LogFilter *
+LogFilterList::find_by_name(char *name)
+{
+  for (LogFilter * f = first(); f; f = next(f)) {
+    if (strcmp(f->name(), name) == 0) {
+      return f;
+    }
+  }
+  return NULL;
+}
+
+
+/*-------------------------------------------------------------------------
+  -------------------------------------------------------------------------*/
+
+unsigned
+LogFilterList::count()
+{
+  unsigned cnt = 0;
+
+  for (LogFilter * f = first(); f; f = next(f)) {
+    cnt++;
+  }
+  return cnt;
+}
+
+void
+LogFilterList::display(FILE * fd)
+{
+  for (LogFilter * f = first(); f; f = next(f)) {
+    f->display(fd);
+  }
+}
+
+void
+LogFilterList::display_as_XML(FILE * fd)
+{
+  for (LogFilter * f = first(); f; f = next(f)) {
+    f->display_as_XML(fd);
+  }
+}
diff --git a/proxy/logging/LogFilter.h b/proxy/logging/LogFilter.h
new file mode 100644
index 00000000..d754e0e1
--- /dev/null
+++ b/proxy/logging/LogFilter.h
@@ -0,0 +1,434 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+#ifndef LOG_FILTER_H
+#define LOG_FILTER_H
+
+#include "libts.h"
+#include "LogAccess.h"
+#include "LogField.h"
+#include "LogFormat.h"
+
+/*-------------------------------------------------------------------------
+  LogFilter
+
+  This is an abstract base class from which particular filters can be
+  derived.  Each filter must implement the "toss_this_entry" member
+  function which, given a LogAccess object, returns true if
+  the log entry is to be tossed out.
+  -------------------------------------------------------------------------*/
+class LogFilter
+{
+public:
+  enum Type
+  {
+    INT_FILTER = 0,
+    STRING_FILTER,
+    N_TYPES
+  };
+
+  enum Action
+  {
+    REJECT = 0,
+    ACCEPT,
+    WIPE_FIELD_VALUE,
+    N_ACTIONS
+  };
+  static const char *ACTION_NAME[];
+
+  // all operators "positive" (i.e., there is no NOMATCH operator anymore)
+  // because one can specify through the "action" field if the record should
+  // be kept or tossed away
+  //
+  enum Operator
+  {
+    MATCH = 0,
+    CASE_INSENSITIVE_MATCH,
+    CONTAIN,
+    CASE_INSENSITIVE_CONTAIN,
+    N_OPERATORS
+  };
+  static const char *OPERATOR_NAME[];
+
+  LogFilter(const char *name, LogField * field, Action action, Operator oper);
+  virtual ~LogFilter();
+
+  char *name() const { return m_name; }
+  Type type() const { return m_type; }
+  size_t get_num_values() const { return m_num_values; };
+
+  virtual bool toss_this_entry(LogAccess * lad) = 0;
+  virtual bool wipe_this_entry(LogAccess * lad) = 0;
+  virtual void display(FILE * fd = stdout) = 0;
+  virtual void display_as_XML(FILE * fd = stdout) = 0;
+
+  void reverse() { m_action = (m_action == REJECT ? ACCEPT : REJECT); }
+
+protected:
+  char *m_name;
+  LogField *m_field;
+  Action m_action;              // the action this filter takes
+  Operator m_operator;
+  Type m_type;
+  size_t m_num_values;          // the number of comparison values
+
+public:
+  LINK(LogFilter, link);      // so we can create a LogFilterList
+
+private:
+  // -- member functions that are not allowed --
+  LogFilter();
+  LogFilter(const LogFilter & rhs);
+  LogFilter & operator=(LogFilter & rhs);
+};
+
+/*-------------------------------------------------------------------------
+  LogFilterString
+
+  Filter for string fields.
+  -------------------------------------------------------------------------*/
+class LogFilterString:public LogFilter
+{
+public:
+  LogFilterString(const char *name, LogField * field, Action a, Operator o, char *value);
+  LogFilterString(const char *name, LogField * field, Action a, Operator o, size_t num_values, char **value);
+  LogFilterString(const LogFilterString & rhs);
+  ~LogFilterString();
+  bool operator==(LogFilterString & rhs);
+
+  bool toss_this_entry(LogAccess * lad);
+  bool wipe_this_entry(LogAccess * lad);
+  void display(FILE * fd = stdout);
+  void display_as_XML(FILE * fd = stdout);
+
+private:
+  char **m_value;               // the array of values
+
+  // these are used to speed up case insensitive operations
+  //
+  char **m_value_uppercase;     // m_value in all uppercase
+  size_t *m_length;             // length of m_value string
+
+  void _setValues(size_t n, char **value);
+
+  // note: OperatorFunction's must return 0 (zero) if condition is satisfied
+  // (as strcmp does)
+  typedef int (*OperatorFunction) (const char *, const char *);
+
+  static int _isSubstring(const char *s0, const char *s1)
+  {
+    // return 0 if s1 is substring of s0 and 1 otherwise
+    // this reverse behavior is to conform to the behavior of strcmp
+    // which returns 0 if strings match
+    return (strstr(s0, s1) == NULL ? 1 : 0);
+  };
+
+  enum LengthCondition
+  {
+    DATA_LENGTH_EQUAL = 0,
+    DATA_LENGTH_LARGER
+  };
+
+  inline bool _checkCondition(OperatorFunction f,
+                              const char *field_value, size_t field_value_length, char **val, LengthCondition lc);
+
+  inline bool _checkConditionAndWipe(OperatorFunction f, char **field_value, size_t field_value_length, char **val,
+                                     LengthCondition lc);
+
+  // -- member functions that are not allowed --
+  LogFilterString();
+  LogFilterString & operator=(LogFilterString & rhs);
+};
+
+/*-------------------------------------------------------------------------
+  LogFilterInt
+
+  Filter for int fields.
+  -------------------------------------------------------------------------*/
+class LogFilterInt:public LogFilter
+{
+public:
+  LogFilterInt(const char *name, LogField * field, Action a, Operator o, int64_t value);
+    LogFilterInt(const char *name, LogField * field, Action a, Operator o, size_t num_values, int64_t *value);
+    LogFilterInt(const char *name, LogField * field, Action a, Operator o, char *values);
+    LogFilterInt(const LogFilterInt & rhs);
+   ~LogFilterInt();
+  bool operator==(LogFilterInt & rhs);
+
+  bool toss_this_entry(LogAccess * lad);
+  bool wipe_this_entry(LogAccess * lad);
+  void display(FILE * fd = stdout);
+  void display_as_XML(FILE * fd = stdout);
+
+private:
+  int64_t *m_value;            // the array of values
+
+  void _setValues(size_t n, int64_t *value);
+  int _convertStringToInt(char *val, int64_t *ival, LogFieldAliasMap * map);
+
+  // -- member functions that are not allowed --
+  LogFilterInt();
+  LogFilterInt & operator=(LogFilterInt & rhs);
+};
+
+bool filters_are_equal(LogFilter * filt1, LogFilter * filt2);
+
+
+/*-------------------------------------------------------------------------
+  LogFilterList
+  -------------------------------------------------------------------------*/
+class LogFilterList
+{
+public:
+  LogFilterList();
+  ~LogFilterList();
+  bool operator==(LogFilterList &);
+
+  void add(LogFilter * filter, bool copy = true);
+  bool toss_this_entry(LogAccess * lad);
+  bool wipe_this_entry(LogAccess * lad);
+  LogFilter *find_by_name(char *name);
+  void clear();
+
+  LogFilter *first() const { return m_filter_list.head; }
+  LogFilter *next(LogFilter * here) const { return (here->link).next; }
+
+  unsigned count();
+  void display(FILE * fd = stdout);
+  void display_as_XML(FILE * fd = stdout);
+
+  bool does_conjunction() const { return m_does_conjunction;  };
+  void set_conjunction(bool c) { m_does_conjunction = c;  };
+
+private:
+  Queue<LogFilter> m_filter_list;
+
+  bool m_does_conjunction;
+  // If m_does_conjunction = true
+  // toss_this_entry returns true
+  // if ANY filter tosses entry away.
+  // If m_does_conjunction = false,
+  // toss this entry returns true if
+  // ALL filters toss away entry
+
+  // -- member functions that are not allowed --
+  LogFilterList(const LogFilterList & rhs);
+  LogFilterList & operator=(const LogFilterList & rhs);
+};
+
+
+/*-------------------------------------------------------------------------
+  Inline functions
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  _checkCondition
+
+  check all values for a matching condition
+
+  the arguments to the function are:
+
+  - a function f of type OperatorFunction that determines if the
+    condition is true for a single filter value. Note that this function
+    must return 0 if the condition is true.
+  - the value of the field from the log record
+  - the length of this field
+  - the array of filter values to compare to note that we pass this as an
+    argument because it can be either m_value or m_value_uppercase
+  - a LengthCondition argument that determines if the length of the field value
+    must be equal or larger to the length of the filter value (this is to
+    compare strings only if really needed
+    ------------------------------------------------------------------------*/
+
+inline bool
+LogFilterString::_checkCondition(OperatorFunction f,
+                                 const char *field_value, size_t field_value_length, char **val, LengthCondition lc)
+{
+  bool retVal = false;
+
+  // make single value case a little bit faster by taking it out of loop
+  //
+  if (m_num_values == 1) {
+    switch (lc) {
+    case DATA_LENGTH_EQUAL:
+      retVal = (field_value_length == *m_length ? ((*f) (field_value, *val) == 0 ? true : false) : false);
+      break;
+    case DATA_LENGTH_LARGER:
+      retVal = (field_value_length > *m_length ? ((*f) (field_value, *val) == 0 ? true : false) : false);
+      break;
+    default:
+      ink_assert(!"LogFilterString::checkCondition " "unknown LengthCondition");
+    }
+  } else {
+    size_t i;
+    switch (lc) {
+    case DATA_LENGTH_EQUAL:
+      for (i = 0; i < m_num_values; ++i) {
+        // condition is satisfied if f returns zero
+        if (field_value_length == m_length[i] && (*f) (field_value, val[i]) == 0) {
+          retVal = true;
+          break;
+        }
+      }
+      break;
+    case DATA_LENGTH_LARGER:
+      for (i = 0; i < m_num_values; ++i) {
+        // condition is satisfied if f returns zero
+        if (field_value_length > m_length[i] && (*f) (field_value, val[i]) == 0) {
+          retVal = true;
+          break;
+        }
+      }
+      break;
+    default:
+      ink_assert(!"LogFilterString::checkCondition " "unknown LengthCondition");
+    }
+  }
+  return retVal;
+}
+
+/*---------------------------------------------------------------------------
+  wipeField : Given a dest buffer, wipe the first occurance of the value of the
+  field in the buffer.
+
+--------------------------------------------------------------------------*/
+static void
+wipeField(char** dest, char* field)
+{
+
+  char* buf_dest  = *dest;
+
+  if (buf_dest) {
+
+    char* query_param = strstr(buf_dest, "?");
+
+    if (!query_param) return;
+
+    char* p1 = strstr(query_param, field);
+
+    if (p1) {
+      char tmp_text[strlen(buf_dest) + 10];
+      char *temp_text = tmp_text;
+      memcpy(temp_text, buf_dest, (p1 - buf_dest));
+      temp_text += (p1 - buf_dest);
+      char* p2 = strstr(p1, "=");
+      if (p2) {
+        p2++;
+        memcpy(temp_text, p1, (p2 - p1));
+        temp_text += (p2 - p1);
+        char* p3 = strstr(p2, "&");
+        if (p3) {
+          for (int i=0; i<(p3 - p2); i++)
+            temp_text[i] = 'X';
+          temp_text += (p3 - p2);
+          memcpy(temp_text, p3, ((buf_dest+strlen(buf_dest)) - p3));
+        } else {
+          for (int i=0; i<((buf_dest+strlen(buf_dest)) - p2); i++)
+            temp_text[i] = 'X';
+        }
+      } else {
+        return;
+      }
+
+      tmp_text[strlen(buf_dest)] = '\0';
+      strcpy(*dest, tmp_text);
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  _checkConditionAndWipe
+
+  check all values for a matching condition and perform wipe action
+
+  the arguments to the function are:
+
+  - a function f of type OperatorFunction that determines if the
+    condition is true for a single filter value. Note that this function
+    must return 0 if the condition is true.
+  - the value of the field from the log record
+  - the length of this field
+  - the array of filter values to compare to note that we pass this as an
+    argument because it can be either m_value or m_value_uppercase
+  - a LengthCondition argument that determines if the length of the field value
+    must be equal or larger to the length of the filter value (this is to
+    compare strings only if really needed
+    ------------------------------------------------------------------------*/
+
+inline bool
+LogFilterString::_checkConditionAndWipe(OperatorFunction f, char **field_value, size_t field_value_length,
+                                        char **val, LengthCondition lc)
+{
+  bool retVal = false;
+
+  if (m_action != WIPE_FIELD_VALUE) return false;
+
+  // make single value case a little bit faster by taking it out of loop
+  //
+  if (m_num_values == 1) {
+    switch (lc) {
+    case DATA_LENGTH_EQUAL:
+      retVal = (field_value_length == *m_length ? ((*f) (*field_value, *val) == 0 ? true : false) : false);
+      if (retVal) {
+        wipeField(field_value, *val);
+      }
+      break;
+    case DATA_LENGTH_LARGER:
+      retVal = (field_value_length > *m_length ? ((*f) (*field_value, *val) == 0 ? true : false) : false);
+      if (retVal) {
+        wipeField(field_value, *val);
+      }
+      break;
+    default:
+      ink_assert(!"LogFilterString::checkCondition " "unknown LengthCondition");
+    }
+  } else {
+    size_t i;
+    switch (lc) {
+    case DATA_LENGTH_EQUAL:
+      for (i = 0; i < m_num_values; ++i) {
+        // condition is satisfied if f returns zero
+        if (field_value_length == m_length[i] && (*f) (*field_value, val[i]) == 0) {
+          retVal = true;
+          wipeField(field_value, val[i]);
+        }
+      }
+      break;
+    case DATA_LENGTH_LARGER:
+      for (i = 0; i < m_num_values; ++i) {
+        // condition is satisfied if f returns zero
+        if (field_value_length > m_length[i] && (*f) (*field_value, val[i]) == 0) {
+          retVal = true;
+          wipeField(field_value, val[i]);
+        }
+      }
+      break;
+    default:
+      ink_assert(!"LogFilterString::checkConditionAndWipe " "unknown LengthConditionAndWipe");
+    }
+  }
+  return retVal;
+}
+
+#endif
diff --git a/proxy/logging/LogFormat.cc b/proxy/logging/LogFormat.cc
new file mode 100644
index 00000000..3dc5c0c6
--- /dev/null
+++ b/proxy/logging/LogFormat.cc
@@ -0,0 +1,853 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogFormat.cc
+
+
+ ***************************************************************************/
+#include "ink_config.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "INK_MD5.h"
+
+#include "Error.h"
+#include "SimpleTokenizer.h"
+
+#include "LogUtils.h"
+#include "LogFile.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogHost.h"
+#include "LogBuffer.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "Log.h"
+
+// class variables
+//
+bool LogFormat::m_tagging_on = false;
+
+/*-------------------------------------------------------------------------
+  LogFormat::setup
+  -------------------------------------------------------------------------*/
+
+bool
+LogFormat::setup(const char *name, const char *format_str, unsigned interval_sec)
+{
+  if (name == NULL) {
+    Note("missing log format name");
+    return false;
+  }
+
+  if (format_str) {
+    const char *tag = " %<phn>";
+    const size_t m_format_str_size = strlen(format_str) + (m_tagging_on ? strlen(tag) : 0) + 1;
+    m_format_str = (char *)ats_malloc(m_format_str_size);
+    ink_strlcpy(m_format_str, format_str, m_format_str_size);
+    if (m_tagging_on) {
+      Note("Log tagging enabled, adding %%<phn> field at the end of " "format %s", name);
+      ink_strlcat(m_format_str, tag, m_format_str_size);
+    };
+
+    char *printf_str = NULL;
+    char *fieldlist_str = NULL;
+    int nfields = parse_format_string(m_format_str, &printf_str,
+                                      &fieldlist_str);
+    if (nfields > (m_tagging_on ? 1 : 0)) {
+      init_variables(name, fieldlist_str, printf_str, interval_sec);
+    } else {
+      Note("Format %s encountered an error parsing the symbol string "
+           "\"%s\", symbol string contains no fields", ((name) ? name : "no-name"), format_str);
+      m_valid = false;
+    }
+
+    ats_free(fieldlist_str);
+    ats_free(printf_str);
+
+    // We are only valid if init_variables() says we are.
+    return true;
+  }
+
+  // We don't have a format string (ie. this will be a raw text log, so we are always valid.
+  m_valid = true;
+  return true;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::id_from_name
+  -------------------------------------------------------------------------*/
+
+int32_t LogFormat::id_from_name(const char *name)
+{
+  int32_t
+    id = 0;
+  if (name) {
+    INK_MD5
+      name_md5;
+    name_md5.encodeBuffer(name, (int)::strlen(name));
+#if defined(linux)
+    /* Mask most signficant bit so that return value of this function
+     * is not sign extended to be a negative number.
+     * This problem is only known to occur on Linux which
+     * is a 32-bit OS.
+     */
+    id = (int32_t) name_md5.fold() & 0x7fffffff;
+#else
+    id = (int32_t) name_md5.fold();
+#endif
+  }
+  return id;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::init_variables
+  -------------------------------------------------------------------------*/
+
+void
+LogFormat::init_variables(const char *name, const char *fieldlist_str, const char *printf_str, unsigned interval_sec)
+{
+  m_field_count = parse_symbol_string(fieldlist_str, &m_field_list, &m_aggregate);
+
+  if (m_field_count == 0) {
+    m_valid = false;
+  } else if (m_aggregate && !interval_sec) {
+    Note("Format for aggregate operators but no interval " "was specified");
+    m_valid = false;
+  } else {
+    if (m_aggregate) {
+      m_agg_marshal_space = (char *)ats_malloc(m_field_count * INK_MIN_ALIGN);
+    }
+
+    if (m_name_str) {
+      ats_free(m_name_str);
+      m_name_str = NULL;
+      m_name_id = 0;
+    }
+    if (name) {
+      m_name_str = ats_strdup(name);
+      m_name_id = id_from_name(m_name_str);
+    }
+
+    if (m_fieldlist_str) {
+      ats_free(m_fieldlist_str);
+      m_fieldlist_str = NULL;
+      m_fieldlist_id = 0;
+    }
+    if (fieldlist_str) {
+      m_fieldlist_str = ats_strdup(fieldlist_str);
+      m_fieldlist_id = id_from_name(m_fieldlist_str);
+    }
+
+    m_printf_str = ats_strdup(printf_str);
+    m_interval_sec = interval_sec;
+    m_interval_next = LogUtils::timestamp();
+
+    m_valid = true;
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::LogFormat
+
+  This is the general ctor that builds a LogFormat object from the data
+  provided.  In this case, the "fields" character string is a printf-style
+  string where the field symbols are represented within the string in the
+  form %<symbol>.
+  -------------------------------------------------------------------------*/
+
+LogFormat::LogFormat(const char *name, const char *format_str, unsigned interval_sec)
+  : m_interval_sec(0),
+    m_interval_next(0),
+    m_agg_marshal_space(NULL),
+    m_valid(false),
+    m_name_str(NULL),
+    m_name_id(0),
+    m_fieldlist_str(NULL),
+    m_fieldlist_id(0),
+    m_field_count(0),
+    m_printf_str(NULL),
+    m_aggregate(false),
+    m_format_str(NULL)
+{
+  setup(name, format_str, interval_sec);
+
+  // A LOG_FORMAT_TEXT is a log without a format string, everything else is a LOG_FORMAT_CUSTOM. It's possible that we could get
+  // rid of log types altogether, but LogFile currently tests whether a format is a LOG_FORMAT_TEXT format ...
+  m_format_type = format_str ? LOG_FORMAT_CUSTOM : LOG_FORMAT_TEXT;
+}
+
+//-----------------------------------------------------------------------------
+// This constructor is used only in Log::match_logobject
+//
+// It is awkward because it does not take a format_str but a fieldlist_str
+// and a printf_str. These should be derived from a format_str but a
+// LogBufferHeader does not store the format_str, if it did, we could probably
+// delete this.
+//
+LogFormat::LogFormat(const char *name, const char *fieldlist_str, const char *printf_str, unsigned interval_sec)
+  : m_interval_sec(0),
+    m_interval_next(0),
+    m_agg_marshal_space(NULL),
+    m_valid(false),
+    m_name_str(NULL),
+    m_name_id(0),
+    m_fieldlist_str(NULL),
+    m_fieldlist_id(0),
+    m_field_count(0),
+    m_printf_str(NULL),
+    m_aggregate(false),
+    m_format_str(NULL)
+{
+  init_variables(name, fieldlist_str, printf_str, interval_sec);
+  m_format_type = LOG_FORMAT_CUSTOM;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::LogFormat
+
+  This is the copy ctor, needed for copying lists of Format objects.
+  -------------------------------------------------------------------------*/
+
+LogFormat::LogFormat(const LogFormat & rhs)
+  : m_interval_sec(0),
+    m_interval_next(0),
+    m_agg_marshal_space(NULL),
+    m_valid(rhs.m_valid),
+    m_name_str(NULL),
+    m_name_id(0),
+    m_fieldlist_str(NULL),
+    m_fieldlist_id(0),
+    m_field_count(0),
+    m_printf_str(NULL),
+    m_aggregate(false),
+    m_format_str(NULL),
+    m_format_type(rhs.m_format_type)
+{
+  if (m_valid) {
+    if (m_format_type == LOG_FORMAT_TEXT) {
+      m_name_str = ats_strdup(rhs.m_name_str);
+    } else {
+      m_format_str = rhs.m_format_str ? ats_strdup(rhs.m_format_str) : 0;
+      init_variables(rhs.m_name_str, rhs.m_fieldlist_str, rhs.m_printf_str, rhs.m_interval_sec);
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::~LogFormat
+  -------------------------------------------------------------------------*/
+
+LogFormat::~LogFormat()
+{
+  ats_free(m_name_str);
+  ats_free(m_fieldlist_str);
+  ats_free(m_printf_str);
+  ats_free(m_agg_marshal_space);
+  ats_free(m_format_str);
+  m_valid = false;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::format_from_specification
+
+  This routine is obsolete as of 3.1, but will be kept around to preserve
+  the old log config file option.
+
+  This (static) function examines the given log format specification string
+  and builds a new LogFormat object if the format specification is valid.
+  On success, a pointer to a LogFormat object allocated from the heap (with
+  new) will be returned.  On error, NULL is returned.
+  -------------------------------------------------------------------------*/
+
+LogFormat *
+LogFormat::format_from_specification(char *spec, char **file_name, char **file_header, LogFileFormat * file_type)
+{
+  LogFormat *format;
+  char *token;
+  int format_id;
+  char *format_name, *format_str;
+
+  ink_assert(file_name != NULL);
+  ink_assert(file_header != NULL);
+  ink_assert(file_type != NULL);
+
+  SimpleTokenizer tok(spec, ':');
+
+  //
+  // Divide the specification string into tokens using the ':' as a
+  // field separator.  There are currently eight (8) tokens that comprise
+  // a format specification.  Verify each of the token values and if
+  // everything looks ok, then build the LogFormat object.
+  //
+  // First should be the "format" keyword that says this is a format spec.
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  if (strcasecmp(token, "format") == 0) {
+    Debug("log-format", "this is a format");
+  } else {
+    Debug("log-format", "should be 'format'");
+    return NULL;
+  }
+
+  //
+  // Next should be the word "enabled" or "disabled", which indicates
+  // whether we should care about this format or not.
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  if (!strcasecmp(token, "disabled")) {
+    Debug("log-format", "format not enabled, skipping ...");
+    return NULL;
+  } else if (!strcasecmp(token, "enabled")) {
+    Debug("log-format", "enabled format");
+  } else {
+    Debug("log-format", "should be 'enabled' or 'disabled', not %s", token);
+    return NULL;
+  }
+
+  //
+  // Next should be the numeric format identifier
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  format_id = atoi(token);
+  // NOW UNUSED !!!
+
+  //
+  // Next should be the format name
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  format_name = token;
+
+  //
+  // Next should be the printf-stlye format symbol string
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  format_str = token;
+
+  //
+  // Next should be the file name for the log
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  *file_name = ats_strdup(token);
+
+  //
+  // Next should be the file type, either "ASCII" or "BINARY"
+  //
+  token = tok.getNext();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  if (!strcasecmp(token, "ASCII")) {
+    *file_type = LOG_FILE_ASCII;
+  } else if (!strcasecmp(token, "BINARY")) {
+    *file_type = LOG_FILE_BINARY;
+  } else {
+    Debug("log-format", "%s is not a valid file format (ASCII or BINARY)", token);
+    return NULL;
+  }
+
+  //
+  // the rest should be the file header
+  //
+  token = tok.getRest();
+  if (token == NULL) {
+    Debug("log-format", "token expected");
+    return NULL;
+  }
+  // set header to NULL if "none" was specified (a NULL header means
+  // "write no header" to the rest of the logging system)
+  //
+  *file_header = strcmp(token, "none") == 0 ? NULL : ats_strdup(token);
+
+  Debug("log-format", "custom:%d:%s:%s:%s:%d:%s", format_id, format_name, format_str, *file_name, *file_type, token);
+
+  format = new LogFormat(format_name, format_str);
+  ink_assert(format != NULL);
+  if (!format->valid()) {
+    delete format;
+    return NULL;
+  }
+
+  return format;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::parse_symbol_string
+
+  This function does the work of parsing a comma-separated symbol list and
+  adding them to the LogFieldList that is provided.  The total number of
+  fields added to the list is returned.
+  -------------------------------------------------------------------------*/
+
+int
+LogFormat::parse_symbol_string(const char *symbol_string, LogFieldList *field_list, bool *contains_aggregates)
+{
+  char *sym_str;
+  int field_count = 0;
+  LogField *f;
+  char *symbol, *name, *sym;
+  LogField::Container container;
+  LogField::Aggregate aggregate;
+
+  if (symbol_string == NULL)
+    return 0;
+  ink_assert(field_list != NULL);
+  ink_assert(contains_aggregates != NULL);
+
+  *contains_aggregates = false; // we'll change if it does
+
+  //
+  // strtok will mangle the input string; we'll make a copy for that.
+  //
+  sym_str = ats_strdup(symbol_string);
+  symbol = strtok(sym_str, ",");
+
+  while (symbol != NULL) {
+    //
+    // See if there is an aggregate operator, which will contain "()"
+    //
+    char *begin_paren = strchr(symbol, '(');
+    if (begin_paren) {
+      char *end_paren = strchr(symbol, ')');
+      if (end_paren) {
+        Debug("log-agg", "Aggregate symbol: %s", symbol);
+        *begin_paren = '\0';
+        *end_paren = '\0';
+        name = begin_paren + 1;
+        sym = symbol;
+        Debug("log-agg", "Aggregate = %s, field = %s", sym, name);
+        aggregate = LogField::valid_aggregate_name(sym);
+        if (aggregate == LogField::NO_AGGREGATE) {
+          Note("Invalid aggregate specification: %s", sym);
+        } else {
+          if (aggregate == LogField::eCOUNT && strcmp(name, "*") == 0) {
+            f = Log::global_field_list.find_by_symbol("psql");
+          } else {
+            f = Log::global_field_list.find_by_symbol(name);
+          }
+          if (!f) {
+            Note("Invalid field symbol %s used in aggregate " "operation", name);
+          } else if (f->type() != LogField::sINT) {
+            Note("Only single integer field types may be aggregated");
+          } else {
+            LogField *new_f = new LogField(*f);
+            new_f->set_aggregate_op(aggregate);
+            field_list->add(new_f, false);
+            field_count++;
+            *contains_aggregates = true;
+            Debug("log-agg", "Aggregate field %s(%s) added", sym, name);
+          }
+        }
+      } else {
+        Note("Invalid aggregate field specification: no trailing " "')' in %s", symbol);
+      }
+    }
+    //
+    // Now check for a container field, which starts with '{'
+    //
+    else if (*symbol == '{') {
+      Debug("log-format", "Container symbol: %s", symbol);
+      f = NULL;
+      char *name_end = strchr(symbol, '}');
+      if (name_end != NULL) {
+        name = symbol + 1;
+        *name_end = 0;          // changes '}' to '\0'
+        sym = name_end + 1;     // start of container symbol
+        LogSlice slice(sym);
+        Debug("log-format", "Name = %s, symbol = %s", name, sym);
+        container = LogField::valid_container_name(sym);
+        if (container == LogField::NO_CONTAINER) {
+          Note("Invalid container specification: %s", sym);
+        } else {
+          f = new LogField(name, container);
+          ink_assert(f != NULL);
+          if (slice.m_enable) {
+            f->m_slice = slice;
+            Debug("log-slice", "symbol = %s, [%d:%d]", sym,
+                  f->m_slice.m_start, f->m_slice.m_end);
+          }
+          field_list->add(f, false);
+          field_count++;
+          Debug("log-format", "Container field {%s}%s added", name, sym);
+        }
+      } else {
+        Note("Invalid container field specification: no trailing " "'}' in %s", symbol);
+      }
+    }
+    //
+    // treat this like a regular field symbol
+    //
+    else {
+      LogSlice slice(symbol);
+      Debug("log-format", "Regular field symbol: %s", symbol);
+      f = Log::global_field_list.find_by_symbol(symbol);
+      if (f != NULL) {
+        LogField *cpy = new LogField(*f);
+        if (slice.m_enable) {
+          cpy->m_slice = slice;
+          Debug("log-slice", "symbol = %s, [%d:%d]", symbol,
+                cpy->m_slice.m_start, cpy->m_slice.m_end);
+        }
+        field_list->add(cpy, false);
+        field_count++;
+        Debug("log-format", "Regular field %s added", symbol);
+      } else {
+        Note("The log format symbol %s was not found in the " "list of known symbols.", symbol);
+      }
+    }
+
+    //
+    // Get the next symbol
+    //
+    symbol = strtok(NULL, ",");
+  }
+
+  ats_free(sym_str);
+  return field_count;
+}
+
+//
+// Parse escape string, supports two forms:
+//
+// 1) Octal representation: '\abc', for example: '\060'
+//    0 < (a*8^2 + b*8 + c) < 255
+//
+// 2) Hex representation: '\xab', for exampe: '\x3A'
+//    0 < (a*16 + b) < 255
+//
+// Return -1 if the beginning four characters are not valid
+// escape sequence, otherwise reutrn unsigned char value of the
+// escape sequence in the string.
+//
+// NOTE: The value of escape sequence should be greater than 0
+//       and less than 255, since:
+//       - 0 is terminator of string, and
+//       - 255('\377') has been used as LOG_FIELD_MARKER.
+//
+int
+LogFormat::parse_escape_string(const char *str, int len)
+{
+  int sum, start = 0;
+  unsigned char a, b, c;
+
+  if (str[start] != '\\' || len < 2)
+    return -1;
+
+  if (str[start + 1] == '\\')
+    return '\\';
+
+  if (len < 4)
+    return -1;
+
+  a = (unsigned char)str[start + 1];
+  b = (unsigned char)str[start + 2];
+  c = (unsigned char)str[start + 3];
+
+  if (isdigit(a) && isdigit(b) && isdigit(b)) {
+
+    sum = (a - '0')*64 + (b - '0')*8 + (c - '0');
+
+    if (sum == 0 || sum >= 255) {
+      Warning("Octal escape sequence out of range: \\%c%c%c, treat it as normal string\n", a, b, c);
+      return -1;
+    } else
+      return sum;
+
+  } else if (tolower(a) == 'x' && isxdigit(b) && isxdigit(c)) {
+    int i, j;
+    if (isdigit(b))
+      i = b - '0';
+    else
+      i = toupper(b) - 'A' + 10;
+
+    if (isdigit(c))
+      j = c - '0';
+    else
+      j = toupper(c) - 'A' + 10;
+
+    sum = i*16 + j;
+
+    if (sum == 0 || sum >= 255) {
+      Warning("Hex escape sequence out of range: \\%c%c%c, treat it as normal string\n", a, b, c);
+      return -1;
+    } else
+      return sum;
+  }
+
+  return -1;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::parse_format_string
+
+  This function will parse a custom log format string, which is a
+  combination of printf characters and logging field names, separating this
+  combined format string into a normal printf string and a fieldlist.  The
+  number of logging fields parsed will be returned.  The two strings
+  returned are allocated with ats_malloc, and should be released by the
+  caller.  The function returns -1 on error.
+
+  For 3.1, I've added the ability to log summary information using
+  aggregate operators SUM, COUNT, AVG, ...
+  -------------------------------------------------------------------------*/
+
+int
+LogFormat::parse_format_string(const char *format_str, char **printf_str, char **fields_str)
+{
+  ink_assert(printf_str != NULL);
+  ink_assert(fields_str != NULL);
+
+  if (format_str == NULL) {
+    *printf_str = *fields_str = NULL;
+    return 0;
+  }
+  //
+  // Since the given format string is a combination of the printf-string
+  // and the field symbols, when we break it up into these two components
+  // each is guaranteed to be smaller (or the same size) as the format
+  // string.
+  //
+  unsigned len = (unsigned)::strlen(format_str);
+  *printf_str = (char *)ats_malloc(len + 1);
+  *fields_str = (char *)ats_malloc(len + 1);
+
+  unsigned printf_pos = 0;
+  unsigned fields_pos = 0;
+  unsigned field_count = 0;
+  unsigned field_len;
+  unsigned start, stop;
+  int escape_char;
+
+  for (start = 0; start < len; start++) {
+    //
+    // Look for logging fields: %<field>
+    //
+    if ((format_str[start] == '%') && (start + 1 < len) && (format_str[start + 1] == '<')) {
+      //
+      // this is a field symbol designation; look for the
+      // trailing '>'.
+      //
+      if (fields_pos > 0) {
+        (*fields_str)[fields_pos++] = ',';
+      }
+      for (stop = start + 2; stop < len; stop++) {
+        if (format_str[stop] == '>') {
+          break;
+        }
+      }
+      if (format_str[stop] == '>') {
+        //
+        // We found the termination for this field spec;
+        // copy the field symbol to the symbol string and place a
+        // LOG_FIELD_MARKER in the printf string.
+        //
+        field_len = stop - start - 2;
+        memcpy(&(*fields_str)[fields_pos], &format_str[start + 2], field_len);
+        fields_pos += field_len;
+        (*printf_str)[printf_pos++] = LOG_FIELD_MARKER;
+        ++field_count;
+        start = stop;
+      } else {
+        //
+        // This was not a logging field spec after all,
+        // then try to detect and parse escape string.
+        //
+        escape_char = parse_escape_string(&format_str[start], (len - start));
+
+        if (escape_char == '\\') {
+          start += 1;
+          (*printf_str)[printf_pos++] = (char)escape_char;
+        } else if (escape_char >= 0) {
+          start += 3;
+          (*printf_str)[printf_pos++] = (char)escape_char;
+        } else {
+          memcpy(&(*printf_str)[printf_pos], &format_str[start], stop - start + 1);
+          printf_pos += stop - start + 1;
+        }
+      }
+    } else {
+      //
+      // This was not the start of a logging field spec,
+      // then try to detect and parse escape string.
+      //
+      escape_char = parse_escape_string(&format_str[start], (len - start));
+
+      if (escape_char == '\\') {
+        start += 1;
+        (*printf_str)[printf_pos++] = (char)escape_char;
+      } else if (escape_char >= 0) {
+        start += 3;
+        (*printf_str)[printf_pos++] = (char)escape_char;
+      } else {
+        (*printf_str)[printf_pos++] = format_str[start];
+      }
+    }
+  }
+
+  //
+  // Ok, now NULL terminate the strings and return the number of fields
+  // actually found.
+  //
+  (*fields_str)[fields_pos] = '\0';
+  (*printf_str)[printf_pos] = '\0';
+
+  Debug("log-format", "LogFormat::parse_format_string: field_count=%d, \"%s\", \"%s\"", field_count, *fields_str,
+        *printf_str);
+  return field_count;
+}
+
+/*-------------------------------------------------------------------------
+  LogFormat::display
+
+  Print out some info about this object.
+  -------------------------------------------------------------------------*/
+
+void
+LogFormat::display(FILE * fd)
+{
+  static const char *types[] = {
+    "SQUID_LOG",
+    "COMMON_LOG",
+    "EXTENDED_LOG",
+    "EXTENDED2_LOG",
+    "LOG_FORMAT_CUSTOM",
+    "LOG_FORMAT_TEXT"
+  };
+
+  fprintf(fd, "--------------------------------------------------------\n");
+  fprintf(fd, "Format : %s (%s) (%p), %u fields.\n", m_name_str, types[m_format_type], this, m_field_count);
+  if (m_fieldlist_str) {
+    fprintf(fd, "Symbols: %s\n", m_fieldlist_str);
+    fprintf(fd, "Fields :\n");
+    m_field_list.display(fd);
+  } else {
+    fprintf(fd, "Fields : None\n");
+  }
+  fprintf(fd, "--------------------------------------------------------\n");
+}
+
+void
+LogFormat::displayAsXML(FILE * fd)
+{
+  if (valid()) {
+    fprintf(fd,
+            "<LogFormat>\n"
+            "  <Name     = \"%s\"/>\n"
+            "  <Format   = \"%s\"/>\n"
+            "  <Interval = \"%ld\"/>\n" "</LogFormat>\n", m_name_str, m_format_str, m_interval_sec);
+  } else {
+    fprintf(fd, "INVALID FORMAT\n");
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogFormatList
+  -------------------------------------------------------------------------*/
+
+LogFormatList::LogFormatList()
+{
+}
+
+LogFormatList::~LogFormatList()
+{
+  clear();
+}
+
+void
+LogFormatList::clear()
+{
+  LogFormat *f;
+  while ((f = m_format_list.dequeue())) {
+    delete f;
+  }
+}
+
+void
+LogFormatList::add(LogFormat * format, bool copy)
+{
+  ink_assert(format != NULL);
+
+  if (copy) {
+    m_format_list.enqueue(new LogFormat(*format));
+  } else {
+    m_format_list.enqueue(format);
+  }
+}
+
+LogFormat *
+LogFormatList::find_by_name(const char *name) const
+{
+  for (LogFormat * f = first(); f; f = next(f)) {
+    if (!strcmp(f->name(), name)) {
+      return f;
+    }
+  }
+  return NULL;
+}
+
+unsigned
+LogFormatList::count()
+{
+  unsigned cnt = 0;
+  for (LogFormat * f = first(); f; f = next(f)) {
+    cnt++;
+  }
+  return cnt;
+}
+
+void
+LogFormatList::display(FILE * fd)
+{
+  for (LogFormat * f = first(); f; f = next(f)) {
+    f->display(fd);
+  }
+}
diff --git a/proxy/logging/LogFormat.h b/proxy/logging/LogFormat.h
new file mode 100644
index 00000000..b23bc033
--- /dev/null
+++ b/proxy/logging/LogFormat.h
@@ -0,0 +1,161 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_FORMAT_H
+#define LOG_FORMAT_H
+
+#define LOG_FIELD_MARKER      	'\377'
+
+#include "libts.h"
+#include "LogField.h"
+#include "InkXml.h"
+
+enum LogFormatType
+{
+  // We start the numbering at 4 to compatibility with Traffic Server 4.x, which used
+  // to have the predefined log formats enumerated above ...
+  LOG_FORMAT_CUSTOM = 4,
+  LOG_FORMAT_TEXT = 5
+};
+
+enum LogFileFormat
+{
+  LOG_FILE_BINARY,
+  LOG_FILE_ASCII,
+  LOG_FILE_PIPE, // ie. ASCII pipe
+  N_LOGFILE_TYPES
+};
+
+/*-------------------------------------------------------------------------
+  LogFormat
+
+  Now, this object will simply store the characteristics of a log format,
+  which is defined as a set of fields.
+  -------------------------------------------------------------------------*/
+
+class LogFormat
+{
+public:
+  LogFormat(const char *name, const char *format_str, unsigned interval_sec = 0);
+  LogFormat(const char *name, const char *fieldlist_str, const char *printf_str, unsigned interval_sec = 0);
+  LogFormat(const LogFormat & rhs);
+
+  ~LogFormat();
+
+  void display(FILE * fd = stdout);
+  void displayAsXML(FILE * fd = stdout);
+
+  bool valid() const { return m_valid; }
+  char *name() const { return m_name_str; }
+  char *fieldlist() const { return m_fieldlist_str; }
+  char *format_string() const { return m_format_str; }
+  int32_t name_id() const { return m_name_id; }
+  unsigned fieldlist_id() const { return m_fieldlist_id; }
+  LogFormatType type() const { return m_format_type; }
+  char *printf_str() const { return m_printf_str; }
+  bool is_aggregate() const { return m_aggregate; }
+  unsigned field_count() const { return m_field_count; }
+  long interval() const { return m_interval_sec; }
+
+public:
+  static int32_t id_from_name(const char *name);
+  static LogFormat *format_from_specification(char *spec,
+                                              char **file_name, char **file_header, LogFileFormat * file_type);
+  static int parse_symbol_string(const char *symbol_string, LogFieldList *field_list, bool *contains_aggregates);
+  static int parse_format_string(const char *format_str, char **printf_str, char **fields_str);
+  static int parse_escape_string(const char *str, int len);
+
+  // these are static because m_tagging_on is a class variable
+  static void turn_tagging_on() { m_tagging_on = true; }
+  static void turn_tagging_off() { m_tagging_on = false; }
+
+private:
+  bool setup(const char *name, const char *format_str, unsigned interval_sec = 0);
+  void init_variables(const char *name, const char *fieldlist_str, const char *printf_str, unsigned interval_sec);
+
+public:
+  LogFieldList m_field_list;
+  long m_interval_sec;
+  long m_interval_next;
+  char *m_agg_marshal_space;
+
+private:
+  static bool m_tagging_on;     // flag to control tagging, class
+  // variable
+  bool m_valid;
+  char *m_name_str;
+  int32_t m_name_id;
+  char *m_fieldlist_str;
+  unsigned m_fieldlist_id;
+  unsigned m_field_count;
+  char *m_printf_str;
+  bool m_aggregate;
+  char *m_format_str;
+  LogFormatType m_format_type;
+
+public:
+  LINK(LogFormat, link);
+
+private:
+  // -- member functions that are not allowed --
+  LogFormat();
+  LogFormat & operator=(LogFormat & rhs);
+};
+
+// For text logs, there is no format string; we'll simply log the
+// entire entry as a string without any field substitutions.  To
+// indicate this, the format_str will be NULL.
+static inline LogFormat *
+MakeTextLogFormat(const char * name = "text")
+{
+  return new LogFormat(name, NULL /* format_str */);
+}
+
+/*-------------------------------------------------------------------------
+  LogFormatList
+  -------------------------------------------------------------------------*/
+
+class LogFormatList
+{
+public:
+  LogFormatList();
+  ~LogFormatList();
+
+  void add(LogFormat * format, bool copy = true);
+  LogFormat *find_by_name(const char *name) const;
+
+  LogFormat *first() const { return m_format_list.head; }
+  LogFormat *next(LogFormat * here) const { return (here->link).next; }
+
+  void clear();
+  unsigned count();
+  void display(FILE * fd = stdout);
+private:
+  Queue<LogFormat> m_format_list;
+
+  // -- member functions that are not allowed --
+  LogFormatList(const LogFormatList & rhs);
+  LogFormatList & operator=(const LogFormatList & rhs);
+};
+
+#endif
diff --git a/proxy/logging/LogHost.cc b/proxy/logging/LogHost.cc
new file mode 100644
index 00000000..dd05236d
--- /dev/null
+++ b/proxy/logging/LogHost.cc
@@ -0,0 +1,479 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogHost.cc
+
+
+ ***************************************************************************/
+#include "libts.h"
+
+#include "Error.h"
+
+#include "LogUtils.h"
+#include "LogSock.h"
+#include "LogField.h"
+#include "LogFile.h"
+#include "LogFormat.h"
+#include "LogBuffer.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "Log.h"
+
+#include "LogCollationClientSM.h"
+
+#define PING 	true
+#define NOPING 	false
+
+/*-------------------------------------------------------------------------
+  LogHost
+  -------------------------------------------------------------------------*/
+
+LogHost::LogHost(const char *object_filename, uint64_t object_signature)
+  : m_object_filename(ats_strdup(object_filename)),
+    m_object_signature(object_signature),
+    m_port(0),
+    m_name(NULL),
+    m_sock(NULL),
+    m_sock_fd(-1),
+    m_connected(false),
+    m_orphan_file(NULL)
+  , m_log_collation_client_sm(NULL)
+{
+  ink_zero(m_ip);
+  ink_zero(m_ipstr);
+}
+
+LogHost::LogHost(const LogHost & rhs)
+  : m_object_filename(ats_strdup(rhs.m_object_filename)),
+    m_object_signature(rhs.m_object_signature),
+    m_ip(rhs.m_ip),
+    m_port(0),
+    m_name(ats_strdup(rhs.m_name)),
+    m_sock(NULL),
+    m_sock_fd(-1),
+    m_connected(false),
+    m_orphan_file(NULL)
+  , m_log_collation_client_sm(NULL)
+{
+  memcpy(m_ipstr, rhs.m_ipstr, sizeof(m_ipstr));
+  create_orphan_LogFile_object();
+}
+
+LogHost::~LogHost()
+{
+  clear();
+  ats_free(m_object_filename);
+}
+
+//
+// There are 3 ways to establish a LogHost:
+// - by "hostname:port" or IP:port", where IP is a string of the
+//   form "xxx.xxx.xxx.xxx".
+// - by specifying a hostname and a port (as separate arguments).
+// - by specifying an ip and a port (as separate arguments).
+//
+int
+LogHost::set_name_port(char *hostname, unsigned int pt)
+{
+  if (!hostname || hostname[0] == 0) {
+    Note("Cannot establish LogHost with NULL hostname");
+    return 1;
+  }
+
+  clear();                      // remove all previous state for this LogHost
+
+  m_name = ats_strdup(hostname);
+  m_port = pt;
+
+  Debug("log-host", "LogHost established as %s:%u", this->name(), this->port());
+
+  create_orphan_LogFile_object();
+  return 0;
+}
+
+int
+LogHost::set_ipstr_port(char *ipstr, unsigned int pt)
+{
+  if (!ipstr || ipstr[0] == 0) {
+    Note("Cannot establish LogHost with NULL ipstr");
+    return 1;
+  }
+
+  clear();                      // remove all previous state for this LogHost
+
+  if (0 != m_ip.load(ipstr))
+    Note("Log host failed to parse IP address %s", ipstr);
+  m_port = pt;
+  ink_strlcpy(m_ipstr, ipstr, sizeof(m_ipstr));
+  m_name = ats_strdup(ipstr);
+
+  Debug("log-host", "LogHost established as %s:%u", name(), pt);
+
+  create_orphan_LogFile_object();
+  return 0;
+}
+
+int
+LogHost::set_name_or_ipstr(char *name_or_ip)
+{
+  int retVal = 1;
+
+  if (name_or_ip && name_or_ip[0] != 0) {
+    ts::ConstBuffer addr, port;
+    if (ats_ip_parse(ts::ConstBuffer(name_or_ip, strlen(name_or_ip)), &addr, &port)==0) {
+      uint16_t p = port ? atoi(port.data()) : Log::config->collation_port;
+      char* n = const_cast<char*>(addr.data());
+      // Force termination. We know we can do this because the address
+      // string is followed by either a nul or a colon.
+      n[addr.size()] = 0;
+      if (AF_UNSPEC == ats_ip_check_characters(addr)) {
+        retVal = set_name_port(n, p);
+      } else {
+        retVal = set_ipstr_port(n, p);
+      }
+    }
+  }
+  return retVal;
+}
+
+bool LogHost::connected(bool ping)
+{
+  if (m_connected && m_sock && m_sock_fd >= 0) {
+    if (m_sock->is_connected(m_sock_fd, ping)) {
+      return true;
+    }
+  }
+  return false;
+}
+
+bool LogHost::connect()
+{
+  if (! m_ip.isValid()) {
+    Note("Cannot connect to LogHost; host IP has not been established");
+    return false;
+  }
+
+  if (connected(PING)) {
+    return true;
+  }
+
+  IpEndpoint target;
+  ip_port_text_buffer ipb;
+  target.assign(m_ip, htons(m_port));
+
+  if (is_debug_tag_set("log-host")) {
+    Debug("log-host", "Connecting to LogHost %s", ats_ip_nptop(&target, ipb, sizeof ipb));
+  }
+
+  disconnect();                 // make sure connection members are initialized
+
+  if (m_sock == NULL) {
+    m_sock = new LogSock();
+    ink_assert(m_sock != NULL);
+  }
+  m_sock_fd = m_sock->connect(&target.sa);
+  if (m_sock_fd < 0) {
+    Note("Connection to LogHost %s failed", ats_ip_nptop(&target, ipb, sizeof ipb));
+    return false;
+  }
+  m_connected = true;
+
+  if (!authenticated()) {
+    Note("Authentication to LogHost %s failed", ats_ip_nptop(&target, ipb, sizeof ipb));
+    disconnect();
+    return false;
+  }
+
+  return true;
+}
+
+void
+LogHost::disconnect()
+{
+  if (m_sock && m_sock_fd >= 0) {
+    m_sock->close(m_sock_fd);
+    m_sock_fd = -1;
+  }
+  if (m_log_collation_client_sm) {
+    delete m_log_collation_client_sm;
+    m_log_collation_client_sm = NULL;
+  }
+  m_connected = false;
+}
+
+
+void
+LogHost::create_orphan_LogFile_object()
+{
+  delete m_orphan_file;
+
+  const char *orphan_ext = "orphan";
+  unsigned name_len = (unsigned) (strlen(m_object_filename) + strlen(name()) + strlen(orphan_ext) + 16);
+  char *name_buf = (char *)ats_malloc(name_len);
+
+  // NT: replace ':'s with '-'s.  This change is necessary because
+  // NT doesn't like filenames with ':'s in them.  ^_^
+  snprintf(name_buf, name_len, "%s%s%s-%u.%s",
+               m_object_filename, LOGFILE_SEPARATOR_STRING, name(), port(), orphan_ext);
+
+  // should check for conflicts with orphan filename
+  //
+  m_orphan_file = new LogFile(name_buf, NULL, LOG_FILE_ASCII, m_object_signature);
+  ink_assert(m_orphan_file != NULL);
+  ats_free(name_buf);
+}
+
+//
+// preprocess the given buffer data before sent to target host
+// and try to delete it when its reference become zero.
+//
+int
+LogHost::preproc_and_try_delete (LogBuffer *lb)
+{
+  int ret = -1;
+
+  if (lb == NULL) {
+    Note("Cannot write LogBuffer to LogHost %s; LogBuffer is NULL", name());
+    return -1;
+  }
+  LogBufferHeader *buffer_header = lb->header();
+  if (buffer_header == NULL) {
+    Note("Cannot write LogBuffer to LogHost %s; LogBufferHeader is NULL",
+        name());
+    goto done;
+  }
+  if (buffer_header->entry_count == 0) {
+    // no bytes to write
+    goto done;
+  }
+
+  // create a new collation client if necessary
+  if (m_log_collation_client_sm == NULL) {
+    m_log_collation_client_sm = new LogCollationClientSM(this);
+    ink_assert(m_log_collation_client_sm != NULL);
+  }
+
+  // send log_buffer;
+  if (m_log_collation_client_sm->send(lb) <= 0)
+    goto done;
+
+  return 0;
+
+done:
+  LogBuffer::destroy(lb);
+  return ret;
+}
+
+//
+// write the given buffer data to orhpan file and
+// try to delete it when its reference become zero.
+//
+void
+LogHost::orphan_write_and_try_delete(LogBuffer * lb)
+{
+  RecIncrRawStat(log_rsb, this_thread()->mutex->thread_holding,
+                 log_stat_num_lost_before_sent_to_network_stat,
+                 lb->header()->entry_count);
+
+  RecIncrRawStat(log_rsb, this_thread()->mutex->thread_holding,
+                 log_stat_bytes_lost_before_sent_to_network_stat,
+                 lb->header()->byte_count);
+
+  if (!Log::config->logging_space_exhausted) {
+    Debug("log-host", "Sending LogBuffer to orphan file %s", m_orphan_file->get_name());
+    m_orphan_file->preproc_and_try_delete(lb);
+  } else {
+    Debug("log-host", "logging space exhausted, failed to write orphan file, drop(%" PRIu32 ") bytes",
+         lb->header()->byte_count);
+    LogBuffer::destroy(lb);
+  }
+}
+
+void
+LogHost::display(FILE * fd)
+{
+  fprintf(fd, "LogHost: %s:%u, %s\n", name(), port(), (connected(NOPING)) ? "connected" : "not connected");
+}
+
+void
+LogHost::clear()
+{
+  // close an established connection and clear the state of this host
+
+  disconnect();
+
+  ats_free(m_name);
+  delete m_sock;
+  m_orphan_file.clear();
+
+  ink_zero(m_ip);
+  m_port = 0;
+  ink_zero(m_ipstr);
+  m_name = NULL;
+  m_sock = NULL;
+  m_sock_fd = -1;
+  m_connected = false;
+}
+
+bool LogHost::authenticated()
+{
+  if (!connected(NOPING)) {
+    Note("Cannot authenticate LogHost %s; not connected", name());
+    return false;
+  }
+
+  Debug("log-host", "Authenticating LogHost %s ...", name());
+  char *
+    auth_key = Log::config->collation_secret;
+  unsigned
+    auth_key_len = (unsigned)::strlen(auth_key) + 1;    // incl null
+  int
+    bytes = m_sock->write(m_sock_fd, auth_key, auth_key_len);
+  if ((unsigned) bytes != auth_key_len) {
+    Debug("log-host", "... bad write on authenticate");
+    return false;
+  }
+
+  Debug("log-host", "... authenticated");
+  return true;
+}
+
+/*-------------------------------------------------------------------------
+  LogHostList
+  -------------------------------------------------------------------------*/
+
+LogHostList::LogHostList()
+{
+}
+
+LogHostList::~LogHostList()
+{
+  clear();
+}
+
+void
+LogHostList::add(LogHost * object, bool copy)
+{
+  ink_assert(object != NULL);
+  if (copy) {
+    m_host_list.enqueue(new LogHost(*object));
+  } else {
+    m_host_list.enqueue(object);
+  }
+}
+
+unsigned
+LogHostList::count()
+{
+  unsigned cnt = 0;
+  for (LogHost * host = first(); host; host = next(host)) {
+    cnt++;
+  }
+  return cnt;
+}
+
+void
+LogHostList::clear()
+{
+  LogHost *host;
+  while ((host = m_host_list.dequeue())) {
+    delete host;
+  }
+}
+
+int
+LogHostList::preproc_and_try_delete(LogBuffer * lb)
+{
+  int ret;
+  unsigned nr_host, nr;
+  bool need_orphan = true;
+  LogHost *available_host = NULL;
+
+  ink_release_assert(lb->m_references == 0);
+
+  nr_host = nr = count();
+  ink_atomic_increment(&lb->m_references, nr_host);
+
+  for (LogHost * host = first(); host && nr; host = next(host)) {
+    LogHost *lh = host;
+    available_host = lh;
+
+    do {
+      ink_atomic_increment(&lb->m_references, 1);
+      ret = lh->preproc_and_try_delete(lb);
+      need_orphan = need_orphan && (ret < 0);
+    } while (ret < 0 && (lh = lh->failover_link.next));
+
+    nr--;
+  }
+
+  if (need_orphan && available_host) {
+    ink_atomic_increment(&lb->m_references, 1);
+    available_host->orphan_write_and_try_delete(lb);
+  }
+
+  LogBuffer::destroy(lb);
+  return 0;
+}
+
+void
+LogHostList::display(FILE * fd)
+{
+  for (LogHost * host = first(); host; host = next(host)) {
+    host->display(fd);
+  }
+}
+
+bool LogHostList::operator==(LogHostList & rhs)
+{
+  LogHost *
+    host;
+  for (host = first(); host; host = next(host)) {
+    LogHost* rhs_host;
+    for (rhs_host = rhs.first(); rhs_host; rhs_host = next(host)) {
+      if ((host->port() == rhs_host->port() && host->ip_addr().isValid() && host->ip_addr() == rhs_host->ip_addr()) ||
+        (host->name() && rhs_host->name() && (strcmp(host->name(), rhs_host->name()) == 0)) ||
+        (*(host->ipstr()) && *(rhs_host->ipstr()) && (strcmp(host->ipstr(), rhs_host->ipstr()) == 0))
+      ) {
+        break;
+      }
+    }
+    if (rhs_host == NULL) {
+      return false;
+    }
+  }
+  return true;
+}
+
+int
+LogHostList::do_filesystem_checks()
+{
+  for (LogHost * host = first(); host; host = next(host)) {
+    if (host->do_filesystem_checks() < 0) {
+      return -1;
+    }
+  }
+  return 0;
+}
diff --git a/proxy/logging/LogHost.h b/proxy/logging/LogHost.h
new file mode 100644
index 00000000..818233c1
--- /dev/null
+++ b/proxy/logging/LogHost.h
@@ -0,0 +1,133 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#ifndef LOG_HOST_H
+#define LOG_HOST_H
+
+class LogSock;
+class LogBuffer;
+class LogCollationClientSM;
+
+#include "LogBufferSink.h"
+
+/*-------------------------------------------------------------------------
+  LogHost
+  This object corresponds to a named log collation host.
+  -------------------------------------------------------------------------*/
+class LogHost
+{
+
+  friend class LogCollationClientSM;
+
+public:
+  LogHost(const char *object_filename, uint64_t object_signature);
+  LogHost(const LogHost &);
+  ~LogHost();
+
+  int set_name_or_ipstr(char *name_or_ipstr);
+  int set_ipstr_port(char *ipstr, unsigned int port);
+  int set_name_port(char *hostname, unsigned int port);
+
+  bool connected(bool ping);
+  bool connect();
+  void disconnect();
+  //
+  // preprocess the given buffer data before sent to target host
+  // and try to delete it when its reference become zero.
+  //
+  int preproc_and_try_delete(LogBuffer * lb);
+
+  //
+  // write the given buffer data to orhpan file and
+  // try to delete it when its reference become zero.
+  //
+  void orphan_write_and_try_delete(LogBuffer * lb);
+
+  char const* name() const { return m_name ? m_name : "UNKNOWN"; }
+  IpAddr const& ip_addr() const { return m_ip; }
+  in_port_t port() const { return m_port; }
+  char const* ipstr() const { return m_ipstr; }
+
+  void display(FILE * fd = stdout);
+
+  LogFile *get_orphan_logfile() const { return m_orphan_file; }
+  // check if we will be able to write orphan file
+  int do_filesystem_checks() { return m_orphan_file->do_filesystem_checks(); }
+
+private:
+  void clear();
+  bool authenticated();
+  void create_orphan_LogFile_object();
+
+private:
+  char *m_object_filename;
+  uint64_t m_object_signature;
+  IpAddr m_ip; // IP address, network order.
+  in_port_t m_port; // IP port, host order.
+  ip_text_buffer m_ipstr;
+  char *m_name;
+  LogSock *m_sock;
+  int m_sock_fd;
+  bool m_connected;
+  Ptr<LogFile> m_orphan_file;
+  LogCollationClientSM *m_log_collation_client_sm;
+
+public:
+  LINK(LogHost, link);
+  SLINK(LogHost, failover_link);
+
+private:
+  // -- member functions not allowed --
+  LogHost();
+  LogHost & operator=(const LogHost &);
+};
+
+/*-------------------------------------------------------------------------
+  LogHostList
+  -------------------------------------------------------------------------*/
+class LogHostList:public LogBufferSink
+{
+public:
+  LogHostList();
+  ~LogHostList();
+
+  void add(LogHost * host, bool copy = true);
+  unsigned count();
+  void clear();
+  int preproc_and_try_delete(LogBuffer * lb);
+
+  LogHost *first() { return m_host_list.head; }
+  LogHost *next(LogHost * here) { return (here->link).next; }
+
+  void display(FILE * fd = stdout);
+  bool operator==(LogHostList & rhs);
+  int do_filesystem_checks();
+
+private:
+  Queue<LogHost> m_host_list;
+
+  // -- member functions not allowed --
+  LogHostList(const LogHostList &);
+  LogHostList & operator=(const LogHostList &);
+};
+
+#endif
diff --git a/proxy/logging/LogLimits.h b/proxy/logging/LogLimits.h
new file mode 100644
index 00000000..87dea79e
--- /dev/null
+++ b/proxy/logging/LogLimits.h
@@ -0,0 +1,42 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ This file contains constants and other limitis used within the logging
+ module.
+ ***************************************************************************/
+
+#ifndef LOG_LIMITS_H
+#define LOG_LIMITS_H
+
+enum
+{
+  LOG_MAX_FORMAT_LINE = 2048,   /* "format:enable:..." */
+  LOG_MAX_FORMATTED_BUFFER = 20480,
+  LOG_MAX_FORMATTED_LINE = 10240
+};
+
+#define LOG_KILOBYTE		((int64_t)1024)
+#define LOG_MEGABYTE		((int64_t)1048576)
+
+#endif
diff --git a/proxy/logging/LogObject.cc b/proxy/logging/LogObject.cc
new file mode 100644
index 00000000..5d8d6e29
--- /dev/null
+++ b/proxy/logging/LogObject.cc
@@ -0,0 +1,1445 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogObject.cc
+
+
+ ***************************************************************************/
+#include "libts.h"
+
+
+#include "Error.h"
+#include "P_EventSystem.h"
+#include "LogUtils.h"
+#include "LogField.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogAccess.h"
+#include "Log.h"
+#include "ts/TestBox.h"
+
+static bool
+should_roll_on_time(Log::RollingEnabledValues roll) {
+  return roll == Log::ROLL_ON_TIME_ONLY || roll == Log::ROLL_ON_TIME_OR_SIZE;
+}
+
+static bool
+should_roll_on_size(Log::RollingEnabledValues roll) {
+  return roll == Log::ROLL_ON_SIZE_ONLY || roll == Log::ROLL_ON_TIME_OR_SIZE;
+}
+
+size_t
+LogBufferManager::preproc_buffers(LogBufferSink *sink) {
+  SList(LogBuffer, write_link) q(write_list.popall()), new_q;
+  LogBuffer *b = NULL;
+  while ((b = q.pop())) {
+    if (b->m_references || b->m_state.s.num_writers) {
+      // Still has outstanding references.
+      write_list.push(b);
+    } else if (_num_flush_buffers > FLUSH_ARRAY_SIZE) {
+      ink_atomic_increment(&_num_flush_buffers, -1);
+      Warning("Dropping log buffer, can't keep up.");
+      RecIncrRawStat(log_rsb, this_thread()->mutex->thread_holding,
+                     log_stat_bytes_lost_before_preproc_stat,
+                     b->header()->byte_count);
+      delete b;
+    } else {
+      new_q.push(b);
+    }
+  }
+
+  int prepared = 0;
+  while ((b = new_q.pop())) {
+    b->update_header_data();
+    sink->preproc_and_try_delete(b);
+    ink_atomic_increment(&_num_flush_buffers, -1);
+    prepared++;
+  }
+
+  Debug("log-logbuffer", "prepared %d buffers", prepared);
+  return prepared;
+}
+
+/*-------------------------------------------------------------------------
+  LogObject
+  -------------------------------------------------------------------------*/
+
+LogObject::LogObject(const LogFormat *format, const char *log_dir,
+                     const char *basename, LogFileFormat file_format,
+                     const char *header, Log::RollingEnabledValues rolling_enabled,
+                     int flush_threads, int rolling_interval_sec,
+                     int rolling_offset_hr, int rolling_size_mb,
+                     bool auto_created):
+      m_auto_created(auto_created),
+      m_alt_filename (NULL),
+      m_flags (0),
+      m_signature (0),
+      m_flush_threads (flush_threads),
+      m_rolling_interval_sec (rolling_interval_sec),
+      m_rolling_offset_hr (rolling_offset_hr),
+      m_rolling_size_mb (rolling_size_mb),
+      m_last_roll_time(0),
+      m_buffer_manager_idx(0)
+{
+    ink_assert (format != NULL);
+    m_format = new LogFormat(*format);
+    m_buffer_manager = new LogBufferManager[m_flush_threads];
+
+    if (file_format == LOG_FILE_BINARY) {
+        m_flags |= BINARY;
+    } else if (file_format == LOG_FILE_PIPE) {
+        m_flags |= WRITES_TO_PIPE;
+    }
+
+    generate_filenames(log_dir, basename, file_format);
+
+    // compute_signature is a static function
+    m_signature = compute_signature(m_format, m_basename, m_flags);
+
+    // by default, create a LogFile for this object, if a loghost is
+    // later specified, then we will delete the LogFile object
+    //
+    m_logFile = new LogFile(m_filename, header, file_format,
+                            m_signature,
+                            Log::config->ascii_buffer_size,
+                            Log::config->max_line_size);
+
+    LogBuffer *b = new LogBuffer (this, Log::config->log_buffer_size);
+    ink_assert(b);
+    SET_FREELIST_POINTER_VERSION(m_log_buffer, b, 0);
+
+    _setup_rolling(rolling_enabled, rolling_interval_sec, rolling_offset_hr, rolling_size_mb);
+
+    Debug("log-config", "exiting LogObject constructor, filename=%s this=%p",
+          m_filename, this);
+}
+
+LogObject::LogObject(LogObject& rhs)
+  : m_basename(ats_strdup(rhs.m_basename)),
+    m_filename(ats_strdup(rhs.m_filename)),
+    m_alt_filename(ats_strdup(rhs.m_alt_filename)),
+    m_flags(rhs.m_flags),
+    m_signature(rhs.m_signature),
+    m_flush_threads(rhs.m_flush_threads),
+    m_rolling_interval_sec(rhs.m_rolling_interval_sec),
+    m_last_roll_time(rhs.m_last_roll_time)
+{
+    m_format = new LogFormat(*(rhs.m_format));
+    m_buffer_manager = new LogBufferManager[m_flush_threads];
+
+    if (rhs.m_logFile) {
+        m_logFile = new LogFile(*(rhs.m_logFile));
+    } else {
+        m_logFile = NULL;
+    }
+
+    LogFilter *filter;
+    for (filter = rhs.m_filter_list.first(); filter;
+            filter = rhs.m_filter_list.next (filter)) {
+        add_filter (filter);
+    }
+
+    LogHost *host;
+    for (host = rhs.m_host_list.first(); host;
+            host = rhs.m_host_list.next (host)) {
+        add_loghost (host);
+    }
+
+    // copy gets a fresh log buffer
+    //
+    LogBuffer *b = new LogBuffer (this, Log::config->log_buffer_size);
+    ink_assert(b);
+    SET_FREELIST_POINTER_VERSION(m_log_buffer, b, 0);
+
+    Debug("log-config", "exiting LogObject copy constructor, "
+          "filename=%s this=%p", m_filename, this);
+}
+
+LogObject::~LogObject()
+{
+  Debug("log-config", "entering LogObject destructor, this=%p", this);
+
+  preproc_buffers();
+
+  // here we need to free LogHost if it is remote logging.
+  if (is_collation_client()) {
+    if (m_host_list.count()) {
+      m_host_list.clear();
+    }
+  }
+  ats_free(m_basename);
+  ats_free(m_filename);
+  ats_free(m_alt_filename);
+  delete m_format;
+  delete[] m_buffer_manager;
+  delete (LogBuffer*)FREELIST_POINTER(m_log_buffer);
+}
+
+//-----------------------------------------------------------------------------
+//
+// This function generates an object filename according to the following rules:
+//
+// 1.- if no extension is given, add .log for ascii logs, and .blog for
+//     binary logs
+// 2.- if an extension is given, then do not modify filename and use that
+//     extension regardless of type of log
+// 3.- if there is a '.' at the end of the name, then do not add an extension
+//     and remove the '.'. To have a dot at the end of the filename, specify
+//     two ('..').
+//
+void
+LogObject::generate_filenames(const char *log_dir, const char *basename, LogFileFormat file_format)
+{
+  ink_assert(log_dir && basename);
+
+  int i = -1, len = 0;
+  char c;
+  while (c = basename[len], c != 0) {
+    if (c == '.') {
+      i = len;
+    }
+    ++len;
+  }
+  if (i == len - 1) {
+    --len;
+  };                            // remove dot at end of name
+
+  const char *ext = 0;
+  int ext_len = 0;
+  if (i < 0) {                  // no extension, add one
+    switch (file_format) {
+    case LOG_FILE_ASCII:
+      ext = LOG_FILE_ASCII_OBJECT_FILENAME_EXTENSION;
+      ext_len = 4;
+      break;
+    case LOG_FILE_BINARY:
+      ext = LOG_FILE_BINARY_OBJECT_FILENAME_EXTENSION;
+      ext_len = 5;
+      break;
+    case LOG_FILE_PIPE:
+      ext = LOG_FILE_PIPE_OBJECT_FILENAME_EXTENSION;
+      ext_len = 5;
+      break;
+    default:
+      ink_assert(!"unknown file format");
+    }
+  }
+
+  int dir_len = (int) strlen(log_dir);
+  int basename_len = len + ext_len + 1; // include null terminator
+  int total_len = dir_len + 1 + basename_len;   // include '/'
+
+  m_filename = (char *)ats_malloc(total_len);
+  m_basename = (char *)ats_malloc(basename_len);
+
+  memcpy(m_filename, log_dir, dir_len);
+  m_filename[dir_len++] = '/';
+  memcpy(&m_filename[dir_len], basename, len);
+  memcpy(m_basename, basename, len);
+
+  if (ext_len) {
+    memcpy(&m_filename[dir_len + len], ext, ext_len);
+    memcpy(&m_basename[len], ext, ext_len);
+  }
+  m_filename[total_len - 1] = 0;
+  m_basename[basename_len - 1] = 0;
+}
+
+
+
+void
+LogObject::rename(char *new_name)
+{
+  // NOTE: this function is intended to be called by the LogObjectManager
+  // while solving filename conflicts. It DOES NOT modify the signature of
+  // the LogObject to match the new filename.
+  //
+  ats_free(m_alt_filename);
+  m_alt_filename = ats_strdup(new_name);
+  m_logFile->change_name(new_name);
+}
+
+
+void
+LogObject::add_filter(LogFilter * filter, bool copy)
+{
+  if (!filter) {
+    return;
+  }
+  m_filter_list.add(filter, copy);
+}
+
+
+void
+LogObject::set_filter_list(const LogFilterList & list, bool copy)
+{
+  LogFilter *f;
+
+  m_filter_list.clear();
+  for (f = list.first(); f != NULL; f = list.next(f)) {
+    m_filter_list.add(f, copy);
+  }
+  m_filter_list.set_conjunction(list.does_conjunction());
+}
+
+
+void
+LogObject::add_loghost(LogHost * host, bool copy)
+{
+  if (!host) {
+    return;
+  }
+  m_host_list.add(host, copy);
+
+  // A LogObject either writes to a file, or sends to a collation host, but
+  // not both. By default, it writes to a file. If a LogHost is specified,
+  // then clear the intelligent Ptr containing LogFile.
+  //
+  m_logFile.clear();
+}
+
+
+// we conpute the object signature from the fieldlist_str and the printf_str
+// of the LogFormat rather than from the format_str because the format_str
+// is not part of a LogBuffer header
+//
+uint64_t LogObject::compute_signature(LogFormat * format, char *filename, unsigned int flags)
+{
+  char *fl = format->fieldlist();
+  char *ps = format->printf_str();
+  uint64_t signature = 0;
+
+  if (fl && ps && filename) {
+    int buf_size = strlen(fl) + strlen(ps) + strlen(filename) + 2;
+    char *buffer = (char *)ats_malloc(buf_size);
+
+    ink_string_concatenate_strings(buffer, fl, ps, filename, flags & LogObject::BINARY ? "B" :
+                                   (flags & LogObject::WRITES_TO_PIPE ? "P" : "A"), NULL);
+
+    INK_MD5 md5s;
+
+    md5s.encodeBuffer(buffer, buf_size - 1);
+    signature = md5s.fold();
+
+    ats_free(buffer);
+  }
+  return signature;
+}
+
+
+void
+LogObject::display(FILE * fd)
+{
+  fprintf(fd, "++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n");
+  fprintf(fd, "LogObject [%p]: format = %s (%p)\nbasename = %s\n" "flags = %u\n"
+          "signature = %" PRIu64 "\n",
+          this, m_format->name(), m_format, m_basename, m_flags, m_signature);
+  if (is_collation_client()) {
+    m_host_list.display(fd);
+  } else {
+    fprintf(fd, "full path = %s\n", get_full_filename());
+  }
+  m_filter_list.display(fd);
+  fprintf(fd, "++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n");
+}
+
+
+void
+LogObject::displayAsXML(FILE * fd, bool extended)
+{
+  if (extended) {
+    // display format and filter objects
+    m_format->displayAsXML(fd);
+    m_filter_list.display_as_XML(fd);
+  }
+
+  fprintf(fd,
+          "<LogObject>\n"
+          "  <Mode        = \"%s\"/>\n"
+          "  <Format      = \"%s\"/>\n"
+          "  <Filename    = \"%s\"/>\n", (m_flags & BINARY ? "binary" : "ascii"), m_format->name(), m_filename);
+
+  LogFilter *filter;
+  for (filter = m_filter_list.first(); filter != NULL; filter = m_filter_list.next(filter)) {
+    fprintf(fd, "  <Filter      = \"%s\"/>\n", filter->name());
+  }
+
+  LogHost *host;
+  for (host = m_host_list.first(); host != NULL; host = m_host_list.next(host)) {
+    fprintf(fd, "  <LogHostName = \"%s\"/>\n", host->name());
+  }
+
+  fprintf(fd, "</LogObject>\n");
+}
+
+
+LogBuffer *
+LogObject::_checkout_write(size_t * write_offset, size_t bytes_needed) {
+  LogBuffer::LB_ResultCode result_code;
+  LogBuffer *buffer;
+  LogBuffer *new_buffer;
+  bool retry = true;
+
+  do {
+    // To avoid a race condition, we keep a count of held references in
+    // the pointer itself and add this to m_outstanding_references.
+    head_p h;
+    int result = 0;
+    do {
+      INK_QUEUE_LD(h, m_log_buffer);
+      head_p new_h;
+      SET_FREELIST_POINTER_VERSION(new_h, FREELIST_POINTER(h), FREELIST_VERSION(h) + 1);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) &m_log_buffer.data, h.data, new_h.data);
+#else
+       result = ink_atomic_cas((int64_t *) &m_log_buffer.data, h.data, new_h.data);
+#endif
+    } while (!result);
+    buffer = (LogBuffer*)FREELIST_POINTER(h);
+    result_code = buffer->checkout_write(write_offset, bytes_needed);
+    bool decremented = false;
+
+    switch (result_code) {
+    case LogBuffer::LB_OK:
+      // checkout succeded
+      //
+      retry = false;
+      break;
+
+    case LogBuffer::LB_FULL_ACTIVE_WRITERS:
+    case LogBuffer::LB_FULL_NO_WRITERS:
+      // no more room in current buffer, create a new one
+      new_buffer = new LogBuffer(this, Log::config->log_buffer_size);
+
+      // swap the new buffer for the old one
+      INK_WRITE_MEMORY_BARRIER;
+      head_p old_h;
+      do {
+        INK_QUEUE_LD(old_h, m_log_buffer);
+        if (FREELIST_POINTER(old_h) != FREELIST_POINTER(h)) {
+          ink_atomic_increment(&buffer->m_references, -1);
+
+          // another thread should be taking care of creating a new
+          // buffer, so delete new_buffer and try again
+          delete new_buffer;
+          break;
+        }
+        head_p tmp_h;
+        SET_FREELIST_POINTER_VERSION(tmp_h, new_buffer, 0);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) &m_log_buffer.data, old_h.data, tmp_h.data);
+#else
+       result = ink_atomic_cas((int64_t *) &m_log_buffer.data, old_h.data, tmp_h.data);
+#endif
+      } while (!result);
+      if (FREELIST_POINTER(old_h) == FREELIST_POINTER(h)) {
+        ink_atomic_increment(&buffer->m_references, FREELIST_VERSION(old_h) - 1);
+
+        int idx = m_buffer_manager_idx++ % m_flush_threads;
+        Debug("log-logbuffer", "adding buffer %d to flush list after checkout", buffer->get_id());
+        m_buffer_manager[idx].add_to_flush_queue(buffer);
+        Log::preproc_notify[idx].signal();
+
+      }
+      decremented = true;
+      break;
+
+    case LogBuffer::LB_RETRY:
+      // no more room, but another thread should be taking care of
+      // creating a new buffer, so try again
+      //
+      break;
+
+    case LogBuffer::LB_BUFFER_TOO_SMALL:
+
+      // return a null buffer to signal the caller that this
+      // transaction cannot be logged
+      //
+      retry = false;
+      buffer = NULL;
+      break;
+
+    default:
+      ink_assert(false);
+    }
+    if (!decremented) {
+      head_p old_h;
+      do {
+        INK_QUEUE_LD(old_h, m_log_buffer);
+        if (FREELIST_POINTER(old_h) != FREELIST_POINTER(h))
+          break;
+        head_p tmp_h;
+        SET_FREELIST_POINTER_VERSION(tmp_h, FREELIST_POINTER(h), FREELIST_VERSION(old_h) - 1);
+#if TS_HAS_128BIT_CAS
+       result = ink_atomic_cas((__int128_t*) &m_log_buffer.data, old_h.data, tmp_h.data);
+#else
+       result = ink_atomic_cas((int64_t *) &m_log_buffer.data, old_h.data, tmp_h.data);
+#endif
+      } while (!result);
+      if (FREELIST_POINTER(old_h) != FREELIST_POINTER(h))
+        ink_atomic_increment(&buffer->m_references, -1);
+    }
+  } while (retry && write_offset);      // if write_offset is null, we do
+  // not retry because we really do
+  // not want to write to the buffer
+  // only to set it as full
+
+  return buffer;
+}
+
+
+int
+LogObject::va_log(LogAccess * lad, const char * fmt, va_list ap)
+{
+  static const unsigned MAX_ENTRY = 16 * LOG_KILOBYTE; // 16K? Really?
+  char entry[MAX_ENTRY];
+  unsigned len = 0;
+
+  ink_assert(fmt != NULL);
+  len = 0;
+
+  if (this->m_flags & LOG_OBJECT_FMT_TIMESTAMP) {
+    len = LogUtils::timestamp_to_str(LogUtils::timestamp(), entry, MAX_ENTRY);
+    if (len <= 0) {
+      return Log::FAIL;
+    }
+
+    // Add a space after the timestamp
+    entry[len++] = ' ';
+
+    if (len >= MAX_ENTRY) {
+      return Log::FAIL;
+    }
+  }
+
+  len += vsnprintf(&entry[len], MAX_ENTRY - len, fmt, ap);
+
+  // Now that we have an entry and it's length (len), we can place it
+  // into the associated logbuffer.
+  return this->log(lad, entry);
+}
+
+int
+LogObject::log(LogAccess * lad, const char *text_entry)
+{
+  LogBuffer *buffer;
+  size_t offset = 0;            // prevent warning
+  size_t bytes_needed = 0, bytes_used = 0;
+
+  // log to a pipe even if space is exhausted since pipe uses no space
+  // likewise, send data to a remote client even if local space is exhausted
+  // (if there is a remote client, m_logFile will be NULL
+  if (Log::config->logging_space_exhausted && !writes_to_pipe() && m_logFile) {
+    Debug("log", "logging space exhausted, can't write to:%s, drop this entry", m_logFile->get_name());
+    return Log::FULL;
+  }
+  // this verification must be done here in order to avoid 'dead' LogBuffers
+  // with none zero 'in usage' counters (see _checkout_write for more details)
+  if (!lad && !text_entry) {
+    Note("Call to LogAccess without LAD or text entry; skipping");
+    return Log::FAIL;
+  }
+
+  if (lad && m_filter_list.toss_this_entry(lad)) {
+    Debug("log", "entry filtered, skipping ...");
+    return Log::SKIP;
+  }
+
+  if (lad && m_filter_list.wipe_this_entry(lad)) {
+    Debug("log", "entry wiped, ...");
+  }
+
+  if (lad && m_format->is_aggregate()) {
+    // marshal the field data into the temp space provided by the
+    // LogFormat object for aggregate formats
+    if (m_format->m_agg_marshal_space == NULL) {
+      Note("No temp space to marshal aggregate fields into");
+      return Log::FAIL;
+    }
+
+    long time_now = LogUtils::timestamp();
+    m_format->m_field_list.marshal(lad, m_format->m_agg_marshal_space);
+
+    // step through each of the fields and update the LogField object
+    // with the newly-marshalled data
+    LogFieldList *fl = &m_format->m_field_list;
+    char *data_ptr = m_format->m_agg_marshal_space;
+    LogField *f;
+    int64_t val;
+    for (f = fl->first(); f; f = fl->next(f)) {
+
+      // convert to host order to do computations
+      val = (f->is_time_field())? time_now : *((int64_t *) data_ptr);
+      f->update_aggregate(val);
+      data_ptr += INK_MIN_ALIGN;
+    }
+
+    if (time_now < m_format->m_interval_next) {
+      Debug("log-agg", "Time now = %ld, next agg = %ld; not time "
+            "for aggregate entry", time_now, m_format->m_interval_next);
+      return Log::AGGR;
+    }
+    // can easily compute bytes_needed because all fields are INTs
+    // and will use INK_MIN_ALIGN each
+    bytes_needed = m_format->field_count() * INK_MIN_ALIGN;
+  } else if (lad) {
+    bytes_needed = m_format->m_field_list.marshal_len(lad);
+  } else if (text_entry) {
+    bytes_needed = LogAccess::strlen(text_entry);
+  }
+
+  if (bytes_needed == 0) {
+    Debug("log-buffer", "Nothing to log, bytes_needed = 0");
+    return Log::SKIP;
+  }
+
+  // Now try to place this entry in the current LogBuffer.
+  buffer = _checkout_write(&offset, bytes_needed);
+
+  if (!buffer) {
+    Note("Skipping the current log entry for %s because its size (%zu) exceeds "
+         "the maximum payload space in a log buffer", m_basename, bytes_needed);
+    return Log::FAIL;
+  }
+  //
+  // Ok, the checkout_write was successful, which means we have a valid
+  // offset into the current buffer.  Marshal the entry into the buffer,
+  // and the commit (checkin) the changes.
+  //
+
+  if (lad && m_format->is_aggregate()) {
+    // the "real" entry data is contained in the LogField objects
+    // themselves, not in this lad.
+    bytes_used = m_format->m_field_list.marshal_agg(&(*buffer)[offset]);
+    ink_assert(bytes_needed >= bytes_used);
+    m_format->m_interval_next += m_format->m_interval_sec;
+    Debug("log-agg", "Aggregate entry created; next time is %ld", m_format->m_interval_next);
+  } else if (lad) {
+    bytes_used = m_format->m_field_list.marshal(lad, &(*buffer)[offset]);
+    ink_assert(bytes_needed >= bytes_used);
+  } else if (text_entry) {
+    ink_strlcpy(&(*buffer)[offset], text_entry, bytes_needed);
+  }
+
+  buffer->checkin_write(offset);
+
+  return Log::LOG_OK;
+}
+
+
+void
+LogObject::_setup_rolling(Log::RollingEnabledValues rolling_enabled, int rolling_interval_sec, int rolling_offset_hr, int rolling_size_mb)
+{
+  if (!LogRollingEnabledIsValid((int)rolling_enabled)) {
+    m_rolling_enabled = Log::NO_ROLLING;
+    m_rolling_interval_sec = 0;
+    m_rolling_offset_hr = 0;
+    m_rolling_size_mb = 0;
+    if (rolling_enabled != Log::NO_ROLLING) {
+      Warning("Valid rolling_enabled values are %d to %d, invalid value "
+              "(%d) specified for %s, rolling will be disabled for this file.",
+              Log::NO_ROLLING, Log::INVALID_ROLLING_VALUE - 1, rolling_enabled, m_filename);
+    } else {
+      Status("Rolling disabled for %s", m_filename);
+    }
+  } else {
+    // do checks for rolling based on time
+    //
+    if (rolling_enabled == Log::ROLL_ON_TIME_ONLY ||
+        rolling_enabled == Log::ROLL_ON_TIME_OR_SIZE || rolling_enabled == Log::ROLL_ON_TIME_AND_SIZE) {
+      if (rolling_interval_sec < Log::MIN_ROLLING_INTERVAL_SEC) {
+        // check minimum
+        m_rolling_interval_sec = Log::MIN_ROLLING_INTERVAL_SEC;
+      } else if (rolling_interval_sec > Log::MAX_ROLLING_INTERVAL_SEC) {
+        // 1 day maximum
+        m_rolling_interval_sec = Log::MAX_ROLLING_INTERVAL_SEC;
+      } else if (Log::MAX_ROLLING_INTERVAL_SEC % rolling_interval_sec == 0) {
+        // OK, divides day evenly
+        m_rolling_interval_sec = rolling_interval_sec;
+      } else {
+        m_rolling_interval_sec = rolling_interval_sec;
+        // increase so it divides day evenly
+        while (Log::MAX_ROLLING_INTERVAL_SEC % ++m_rolling_interval_sec);
+      }
+
+      if (m_rolling_interval_sec != rolling_interval_sec) {
+        Note("Rolling interval adjusted from %d sec to %d sec for %s",
+             rolling_interval_sec, m_rolling_interval_sec, m_filename);
+      }
+
+      if (rolling_offset_hr<0 || rolling_offset_hr> 23) {
+        rolling_offset_hr = 0;
+        Note("Rolling offset out of bounds for %s, setting it to %d", m_filename, rolling_offset_hr);
+      }
+
+      m_rolling_offset_hr = rolling_offset_hr;
+      m_rolling_size_mb = 0; // it is safe to set it as 0, if we set SIZE rolling,
+                             // it will be updated later
+    }
+
+    if (rolling_enabled == Log::ROLL_ON_SIZE_ONLY ||
+        rolling_enabled == Log::ROLL_ON_TIME_OR_SIZE || rolling_enabled == Log::ROLL_ON_TIME_AND_SIZE) {
+      if (rolling_size_mb < 10) {
+        m_rolling_size_mb = 10;
+        Note("Rolling size invalid(%d) for %s, setting it to 10 MB", rolling_size_mb, m_filename);
+      } else {
+        m_rolling_size_mb = rolling_size_mb;
+      }
+    }
+
+    m_rolling_enabled = rolling_enabled;
+  }
+}
+
+
+unsigned
+LogObject::roll_files(long time_now)
+{
+  if (!m_rolling_enabled)
+    return 0;
+
+  unsigned num_rolled = 0;
+  bool roll_on_time = false;
+  bool roll_on_size = false;
+
+  if (!time_now)
+    time_now = LogUtils::timestamp();
+
+  if (m_rolling_enabled != Log::ROLL_ON_SIZE_ONLY) {
+    if (m_rolling_interval_sec > 0) {
+      // We make no assumptions about the current time not having
+      // changed underneath us. This could happen during daylight
+      // savings time adjustments, or if time is adjusted via NTP.
+      //
+      // For this reason we don't cache the number of seconds
+      // remaining until the next roll, but we calculate this figure
+      // every time ...
+      //
+      int secs_to_next = LogUtils::seconds_to_next_roll(time_now, m_rolling_offset_hr, m_rolling_interval_sec);
+
+      // ... likewise, we make sure we compute the absolute value
+      // of the seconds since the last roll (which would otherwise
+      // be negative if time "went back"). We will use this value
+      // to make sure we don't roll twice if time goes back shortly
+      // after rolling.
+      //
+      int secs_since_last = (m_last_roll_time < time_now ? time_now - m_last_roll_time : m_last_roll_time - time_now);
+
+      // number of seconds we allow for periodic_tasks() not to be
+      // called and still be able to roll
+      //
+      const int missed_window = 10;
+
+      roll_on_time =
+        ((secs_to_next == 0 ||
+          secs_to_next >= m_rolling_interval_sec - missed_window) && secs_since_last > missed_window);
+    }
+  }
+
+  if (m_rolling_enabled != Log::ROLL_ON_TIME_ONLY) {
+    if (m_rolling_size_mb) {
+      // Get file size and check if the file size if greater than the
+      // configured file size for rolling
+      roll_on_size = (get_file_size_bytes() > m_rolling_size_mb * LOG_MEGABYTE);
+    }
+  }
+
+  if ((roll_on_time && should_roll_on_time(m_rolling_enabled)) ||
+      (roll_on_size && should_roll_on_size(m_rolling_enabled)) ||
+      (roll_on_time && roll_on_size && m_rolling_enabled == Log::ROLL_ON_TIME_AND_SIZE)) {
+    num_rolled = _roll_files(m_last_roll_time, time_now ? time_now : LogUtils::timestamp());
+  }
+
+  return num_rolled;
+}
+
+
+unsigned
+LogObject::_roll_files(long last_roll_time, long time_now)
+{
+  unsigned num_rolled = 0;
+
+  if (m_logFile) {
+    // no need to roll if object writes to a pipe
+    if (!writes_to_pipe()) {
+      num_rolled += m_logFile->roll(last_roll_time, time_now);
+    }
+  } else {
+    LogHost *host;
+    for (host = m_host_list.first(); host; host = m_host_list.next(host)) {
+      LogFile *orphan_logfile = host->get_orphan_logfile();
+      if (orphan_logfile) {
+        num_rolled += orphan_logfile->roll(last_roll_time, time_now);
+      }
+    }
+  }
+  m_last_roll_time = time_now;
+  return num_rolled;
+}
+
+
+void
+LogObject::check_buffer_expiration(long time_now)
+{
+  LogBuffer *b = (LogBuffer*)FREELIST_POINTER(m_log_buffer);
+  if (b && time_now > b->expiration_time()) {
+    force_new_buffer();
+  }
+}
+
+
+// make sure that we will be able to write the logs to the disk
+//
+int
+LogObject::do_filesystem_checks()
+{
+  if (m_logFile) {
+    return m_logFile->do_filesystem_checks();
+  } else {
+    return m_host_list.do_filesystem_checks();
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  TextLogObject::TextLogObject
+  -------------------------------------------------------------------------*/
+const LogFormat * TextLogObject::textfmt = MakeTextLogFormat();
+
+TextLogObject::TextLogObject(const char *name, const char *log_dir,
+                             bool timestamps, const char *header,
+                             Log::RollingEnabledValues rolling_enabled, int flush_threads,
+                             int rolling_interval_sec, int rolling_offset_hr,
+                             int rolling_size_mb)
+  : LogObject(TextLogObject::textfmt, log_dir, name, LOG_FILE_ASCII, header,
+              rolling_enabled, flush_threads, rolling_interval_sec,
+              rolling_offset_hr, rolling_size_mb)
+{
+  if (timestamps) {
+    this->set_fmt_timestamps();
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  TextLogObject::write
+
+  This routine will take a printf-style format string and variable number
+  of arguments, and write them to the text file.
+
+  It really just creates a va_list and calls va_write to do the work.
+  Returns the number of bytes written to the file.
+  -------------------------------------------------------------------------*/
+int
+TextLogObject::write(const char *format, ...)
+{
+  int ret_val;
+
+  ink_assert(format != NULL);
+  va_list ap;
+  va_start(ap, format);
+  ret_val = va_write(format, ap);
+  va_end(ap);
+
+  return ret_val;
+}
+
+
+/*-------------------------------------------------------------------------
+  TextLogObject::va_write
+
+  This routine will take a format string and va_list and write it as a
+  single entry (line) in the text file.  If timestamps are on, then the
+  entry will be preceeded by a timestamp.
+
+  Returns ReturnCodeFlags.
+  -------------------------------------------------------------------------*/
+int
+TextLogObject::va_write(const char *format, va_list ap)
+{
+  return this->va_log(NULL, format, ap);
+}
+
+
+/*-------------------------------------------------------------------------
+  LogObjectManager
+  -------------------------------------------------------------------------*/
+
+LogObjectManager::LogObjectManager()
+{
+  _APImutex = new ink_mutex;
+  ink_mutex_init(_APImutex, "_APImutex");
+}
+
+LogObjectManager::~LogObjectManager()
+{
+  for (unsigned i = 0; i < _objects.length(); ++i) {
+    if (REF_COUNT_OBJ_REFCOUNT_DEC(_objects[i]) == 0) {
+      delete _objects[i];
+    }
+  }
+
+  for (unsigned i = 0; i < _APIobjects.length(); ++i) {
+    if (REF_COUNT_OBJ_REFCOUNT_DEC(_APIobjects[i]) == 0) {
+      delete _APIobjects[i];
+    }
+  }
+
+  delete _APImutex;
+}
+
+int
+LogObjectManager::_manage_object(LogObject * log_object, bool is_api_object, int maxConflicts)
+{
+  if (is_api_object) {
+    ACQUIRE_API_MUTEX("A LogObjectManager::_manage_object");
+  }
+
+  bool col_client = log_object->is_collation_client();
+  int retVal = _solve_internal_filename_conflicts(log_object, maxConflicts);
+
+  if (retVal == NO_FILENAME_CONFLICTS) {
+    // check for external conflicts only if the object is not a collation
+    // client
+    //
+    if (col_client || (retVal = _solve_filename_conflicts(log_object, maxConflicts), retVal == NO_FILENAME_CONFLICTS)) {
+
+      // do filesystem checks
+      //
+      if (log_object->do_filesystem_checks() < 0) {
+        const char *msg = "The log file %s did not pass filesystem checks. " "No output will be produced for this log";
+        Error(msg, log_object->get_full_filename());
+        LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, log_object->get_full_filename());
+        retVal = ERROR_DOING_FILESYSTEM_CHECKS;
+
+      } else {
+
+        // no conflicts, add object to the list of managed objects
+        //
+        REF_COUNT_OBJ_REFCOUNT_INC(log_object);
+        if (is_api_object) {
+          _APIobjects.push_back(log_object);
+        } else {
+          _objects.push_back(log_object);
+        }
+
+        ink_release_assert(retVal == NO_FILENAME_CONFLICTS);
+
+        Debug("log", "LogObjectManager managing object %s (%s) "
+              "[signature = %" PRIu64 ", address = %p]",
+              log_object->get_base_filename(),
+              col_client ? "collation client" :
+              log_object->get_full_filename(), log_object->get_signature(), log_object);
+
+        if (log_object->has_alternate_name()) {
+          Warning("The full path for the (%s) LogObject %s "
+                  "with signature %" PRIu64 " "
+                  "has been set to %s rather than %s because the latter "
+                  "is being used by another LogObject",
+                  log_object->receives_remote_data()? "remote" : "local",
+                  log_object->get_base_filename(),
+                  log_object->get_signature(), log_object->get_full_filename(), log_object->get_original_filename());
+        }
+      }
+    }
+  }
+
+  if (is_api_object) {
+    RELEASE_API_MUTEX("R LogObjectManager::_manage_object");
+  }
+
+  return retVal;
+}
+
+
+int
+LogObjectManager::_solve_filename_conflicts(LogObject * log_object, int maxConflicts)
+{
+  int retVal = NO_FILENAME_CONFLICTS;
+
+  const char *filename = log_object->get_full_filename();
+
+  if (access(filename, F_OK)) {
+    if (errno != ENOENT) {
+      const char *msg = "Cannot access log file %s: %s";
+      const char *se = strerror(errno);
+
+      Error(msg, filename, se);
+      LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, filename, se);
+      retVal = ERROR_ACCESSING_LOG_FILE;
+    }
+  } else {
+    // file exists, try to read metafile to get object signature
+    //
+    uint64_t signature = 0;
+    MetaInfo meta_info(filename);
+    bool conflicts = true;
+
+    if (meta_info.file_open_successful()) {
+      bool got_sig = meta_info.get_log_object_signature(&signature);
+      uint64_t obj_sig = log_object->get_signature();
+
+      if (got_sig && signature == obj_sig) {
+        conflicts = false;
+      }
+      Debug("log", "LogObjectManager::_solve_filename_conflicts\n"
+            "\tfilename = %s\n"
+            "\tmeta file signature = %" PRIu64 "\n"
+            "\tlog object signature = %" PRIu64 "\n" "\tconflicts = %d", filename, signature, obj_sig, conflicts);
+    }
+
+    if (conflicts) {
+      if (maxConflicts == 0) {
+        // do not take any action, and return an error status
+        //
+        const char *msg = "Cannot solve filename conflicts for log file %s";
+
+        Error(msg, filename);
+        LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, filename);
+        retVal = CANNOT_SOLVE_FILENAME_CONFLICTS;
+      } else {
+        // either the meta file could not be read, or the new object's
+        // signature and the metafile signature do not match ==>
+        // roll old filename so the new object can use the filename
+        // it requested (previously we used to rename the NEW file
+        // but now we roll the OLD file), or if the log object writes
+        // to a pipe, just remove the file if it was open as a pipe
+
+        bool roll_file = true;
+
+        if (log_object->writes_to_pipe()) {
+          // determine if existing file is a pipe, and remove it if
+          // that is the case so the right metadata for the new pipe
+          // is created later
+          //
+          struct stat s;
+          if (stat(filename, &s) < 0) {
+            // an error happened while trying to get file info
+            //
+            const char *msg = "Cannot stat log file %s: %s";
+            char *se = strerror(errno);
+
+            Error(msg, filename, se);
+            LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, filename, se);
+            retVal = ERROR_DETERMINING_FILE_INFO;
+            roll_file = false;
+          } else {
+            if (s.st_mode == S_IFIFO) {
+              unlink(filename);
+              roll_file = false;
+            }
+          }
+        }
+        if (roll_file) {
+          Warning("File %s will be rolled because a LogObject with "
+                  "different format is requesting the same " "filename", filename);
+          LogFile logfile(filename, NULL, LOG_FILE_ASCII, 0);
+          long time_now = LogUtils::timestamp();
+
+          if (logfile.roll(time_now - log_object->get_rolling_interval(), time_now) == 0) {
+            // an error happened while trying to roll the file
+            //
+            const char *msg = "Cannot roll log file %s to fix log " "filename conflicts";
+
+            Error(msg, filename);
+            LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, filename);
+            retVal = CANNOT_SOLVE_FILENAME_CONFLICTS;
+
+          }
+        }
+      }
+    }
+  }
+  return retVal;
+}
+
+
+bool
+LogObjectManager::_has_internal_filename_conflict(const char *filename, LogObjectList& objects)
+{
+  for (unsigned i = 0; i < objects.length(); i++) {
+
+    if (!objects[i]->is_collation_client()) {
+      // an internal conflict exists if two objects request the
+      // same filename, regardless of the object signatures, since
+      // two objects writing to the same file would produce a
+      // log with duplicate entries and non monotonic timestamps
+      if (strcmp(objects[i]->get_full_filename(), filename) == 0) {
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+
+int
+LogObjectManager::_solve_internal_filename_conflicts(LogObject *log_object, int maxConflicts, int fileNum)
+{
+  int retVal = NO_FILENAME_CONFLICTS;
+  const char *filename = log_object->get_full_filename();
+
+  if (_has_internal_filename_conflict(filename, _objects) ||
+      _has_internal_filename_conflict(filename, _APIobjects)) {
+    if (fileNum < maxConflicts) {
+      char new_name[MAXPATHLEN];
+
+      snprintf(new_name, sizeof(new_name), "%s%s%d",
+               log_object->get_original_filename(), LOGFILE_SEPARATOR_STRING, ++fileNum);
+      log_object->rename(new_name);
+      retVal = _solve_internal_filename_conflicts(log_object, maxConflicts, fileNum);
+    } else {
+      const char *msg = "Cannot solve filename conflicts for log file %s";
+
+      Error(msg, filename);
+      LogUtils::manager_alarm(LogUtils::LOG_ALARM_ERROR, msg, filename);
+      retVal = CANNOT_SOLVE_FILENAME_CONFLICTS;
+    }
+  }
+  return retVal;
+}
+
+
+LogObject *
+LogObjectManager::get_object_with_signature(uint64_t signature)
+{
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    LogObject * obj = this->_objects[i];
+
+    if (obj->get_signature() == signature) {
+      return obj;
+    }
+  }
+  return NULL;
+}
+
+
+void
+LogObjectManager::check_buffer_expiration(long time_now)
+{
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    this->_objects[i]->check_buffer_expiration(time_now);
+  }
+
+  ACQUIRE_API_MUTEX("A LogObjectManager::check_buffer_expiration");
+
+  for (unsigned i = 0; i < this->_APIobjects.length(); i++) {
+    this->_APIobjects[i]->check_buffer_expiration(time_now);
+  }
+
+  RELEASE_API_MUTEX("R LogObjectManager::check_buffer_expiration");
+}
+
+size_t
+LogObjectManager::preproc_buffers(int idx)
+{
+  size_t buffers_preproced = 0;
+
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    buffers_preproced += this->_objects[i]->preproc_buffers(idx);
+  }
+
+  ACQUIRE_API_MUTEX("A LogObjectManager::preproc_buffers");
+
+  for (unsigned i = 0; i < this->_APIobjects.length(); i++) {
+    buffers_preproced += this->_APIobjects[i]->preproc_buffers(idx);
+  }
+
+  RELEASE_API_MUTEX("R LogObjectManager::preproc_buffers");
+
+  return buffers_preproced;
+}
+
+
+bool
+LogObjectManager::unmanage_api_object(LogObject * logObject)
+{
+  ACQUIRE_API_MUTEX("A LogObjectManager::unmanage_api_object");
+
+  if (this->_APIobjects.in(logObject)) {
+    this->_APIobjects.remove(logObject);
+
+    // Force a buffer flush, then schedule this LogObject to be deleted on the eventProcessor.
+    logObject->force_new_buffer();
+    new_Derefer(logObject, HRTIME_SECONDS(60));
+
+    RELEASE_API_MUTEX("R LogObjectManager::unmanage_api_object");
+    return true;
+  }
+
+  RELEASE_API_MUTEX("R LogObjectManager::unmanage_api_object");
+  return false;
+}
+
+
+void
+LogObjectManager::add_filter_to_all(LogFilter * filter)
+{
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    _objects[i]->add_filter(filter);
+  }
+}
+
+
+void
+LogObjectManager::open_local_pipes()
+{
+  // for all local objects that write to a pipe, call open_file to force
+  // the creation of the pipe so that any potential reader can see it
+  //
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    LogObject *obj = _objects[i];
+    if (obj->writes_to_pipe() && !obj->is_collation_client()) {
+      obj->m_logFile->open_file();
+    }
+  }
+}
+
+
+void
+LogObjectManager::transfer_objects(LogObjectManager & old_mgr)
+{
+  unsigned num_kept_objects = 0;
+
+  Debug("log-config-transfer", "transferring objects from LogObjectManager %p, to %p", &old_mgr, this);
+
+  if (is_debug_tag_set("log-config-transfer")) {
+    Debug("log-config-transfer", "TRANSFER OBJECTS: list of old objects");
+    for (unsigned i = 0; i < old_mgr._objects.length(); i++) {
+      Debug("log-config-transfer", "%s", old_mgr._objects[i]->get_original_filename());
+    }
+
+    Debug("log-config-transfer", "TRANSFER OBJECTS : list of new objects");
+    for (unsigned i = 0; i < this->_objects.length(); i++) {
+      Debug("log-config-transfer", "%s", _objects[i]->get_original_filename());
+    }
+  }
+
+  // Transfer the API objects from the old manager. The old manager will retain its refcount.
+  for (unsigned i = 0; i < old_mgr._APIobjects.length(); ++i) {
+    manage_api_object(old_mgr._APIobjects[i]);
+  }
+
+  for (unsigned i = 0; i < old_mgr._objects.length(); ++i) {
+    LogObject * old_obj = old_mgr._objects[i];
+    LogObject * new_obj;
+
+    Debug("log-config-transfer", "examining existing object %s", old_obj->get_base_filename());
+
+    // See if any of the new objects is just a copy of an old one. If so, transfer the
+    // old one to the new manager and delete the new one. We don't use Vec::in here because
+    // we need to compare the object hash, not the pointers.
+    for (unsigned j = 0; j < _objects.length(); j++) {
+      new_obj = _objects[j];
+
+      Debug("log-config-transfer",
+            "comparing existing object %s to new object %s", old_obj->get_base_filename(), new_obj->get_base_filename());
+
+      if (*new_obj == *old_obj) {
+        Debug("log-config-transfer", "keeping existing object %s", old_obj->get_base_filename());
+
+        REF_COUNT_OBJ_REFCOUNT_INC(old_obj);
+        this->_objects[j] = old_obj;
+
+        if (REF_COUNT_OBJ_REFCOUNT_DEC(new_obj) == 0) {
+          delete new_obj;
+        }
+        ++num_kept_objects;
+        break;
+      }
+    }
+  }
+
+  if (is_debug_tag_set("log-config-transfer")) {
+    Debug("log-config-transfer", "Log Object List after transfer:");
+    display();
+  }
+}
+
+unsigned
+LogObjectManager::roll_files(long time_now)
+{
+  int num_rolled = 0;
+
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    num_rolled += this->_objects[i]->roll_files(time_now);
+  }
+
+  ACQUIRE_API_MUTEX("A LogObjectManager::roll_files");
+
+  for (unsigned i = 0; i < this->_APIobjects.length(); i++) {
+    num_rolled += this->_APIobjects[i]->roll_files(time_now);
+  }
+
+  RELEASE_API_MUTEX("R LogObjectManager::roll_files");
+
+  return num_rolled;
+}
+
+void
+LogObjectManager::display(FILE * str)
+{
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    _objects[i]->display(str);
+  }
+
+  ACQUIRE_API_MUTEX("A LogObjectManager::display");
+  for (unsigned i = 0; i < this->_APIobjects.length(); i++) {
+    _APIobjects[i]->display(str);
+  }
+  RELEASE_API_MUTEX("R LogObjectManager::display");
+}
+
+LogObject *
+LogObjectManager::find_by_format_name(const char *name) const
+{
+  for (unsigned i = 0; i < this->_objects.length(); ++i) {
+    if (this->_objects[i] && this->_objects[i]->m_format->name_id() == LogFormat::id_from_name(name)) {
+      return this->_objects[i];
+    }
+  }
+  return NULL;
+}
+
+unsigned
+LogObjectManager::get_num_collation_clients() const
+{
+  unsigned coll_clients = 0;
+
+  for (unsigned i = 0; i < this->_objects.length(); ++i) {
+    if (this->_objects[i] && this->_objects[i]->is_collation_client()) {
+      ++coll_clients;
+    }
+  }
+  return coll_clients;
+}
+
+int
+LogObjectManager::log(LogAccess * lad)
+{
+  int ret = Log::SKIP;
+  ProxyMutex *mutex = this_thread()->mutex;
+
+  for (unsigned i = 0; i < this->_objects.length(); i++) {
+    //
+    // Auto created LogObject is only applied to LogBuffer
+    // data received from network in collation host. It should
+    // be ignored here.
+    //
+    if (_objects[i]->m_auto_created)
+      continue;
+
+    ret |= _objects[i]->log(lad);
+  }
+
+  //
+  // The bit-field code in *ret* are priority chain:
+  // FAIL > FULL > LOG_OK > AGGR > SKIP
+  // The if-statement should keep step with the priority order.
+  //
+  if (unlikely(ret & Log::FAIL)) {
+    RecIncrRawStat(log_rsb, mutex->thread_holding,
+                   log_stat_event_log_access_fail_stat, 1);
+  } else if (unlikely(ret & Log::FULL)) {
+    RecIncrRawStat(log_rsb, mutex->thread_holding,
+                   log_stat_event_log_access_full_stat, 1);
+  } else if (likely(ret & Log::LOG_OK)) {
+    RecIncrRawStat(log_rsb, mutex->thread_holding,
+                   log_stat_event_log_access_ok_stat, 1);
+  } else if (unlikely(ret & Log::AGGR)) {
+    RecIncrRawStat(log_rsb, mutex->thread_holding,
+                   log_stat_event_log_access_aggr_stat, 1);
+  } else if (likely(ret & Log::SKIP)) {
+    RecIncrRawStat(log_rsb, mutex->thread_holding,
+                   log_stat_event_log_access_skip_stat, 1);
+  } else {
+    ink_release_assert("Unexpected result");
+  }
+
+  return ret;
+}
+
+void
+LogObjectManager::flush_all_objects()
+{
+  for (unsigned i = 0; i < this->_objects.length(); ++i) {
+    this->_objects[i]->force_new_buffer();
+  }
+
+  ACQUIRE_API_MUTEX("A LogObjectManager::flush_all_objects");
+
+  for (unsigned i = 0; i < this->_APIobjects.length(); ++i) {
+    this->_APIobjects[i]->force_new_buffer();
+  }
+
+  RELEASE_API_MUTEX("R LogObjectManager::flush_all_objects");
+}
+
+#if TS_HAS_TESTS
+
+static LogObject *
+MakeTestLogObject(const char * name)
+{
+  const char * tmpdir = getenv("TMPDIR");
+  LogFormat format("testfmt", NULL);
+
+  if (!tmpdir) {
+    tmpdir = "/tmp";
+  }
+
+  return new LogObject(&format, tmpdir, name,
+                       LOG_FILE_ASCII /* file_format */, name /* header */,
+                       Log::ROLL_ON_TIME_ONLY /* rolling_enabled */, 1 /* flush_threads */);
+}
+
+REGRESSION_TEST(LogObjectManager_Transfer)(RegressionTest * t, int /* atype ATS_UNUSED */, int * pstatus)
+{
+  TestBox box(t, pstatus);
+
+  // There used to be a lot of confusion around whether LogObjects were owned by ome or more LogObjectManager
+  // objects, or handed off to static storage in the Log class. This test just verifies that this is no longer
+  // the case.
+  {
+    LogObjectManager mgr1;
+    LogObjectManager mgr2;
+
+    mgr1.manage_object(MakeTestLogObject("object1"));
+    mgr1.manage_object(MakeTestLogObject("object2"));
+    mgr1.manage_object(MakeTestLogObject("object3"));
+    mgr1.manage_object(MakeTestLogObject("object4"));
+
+    mgr2.transfer_objects(mgr1);
+
+    rprintf(t, "mgr1 has %d objects, mgr2 has %d objects\n",
+        (int)mgr1.get_num_objects(), (int)mgr2.get_num_objects());
+
+    rprintf(t, "running Log::periodoc_tasks()\n");
+    Log::periodic_tasks(ink_get_hrtime() / HRTIME_SECOND);
+    rprintf(t, "Log::periodoc_tasks() done\n");
+  }
+
+  box = REGRESSION_TEST_PASSED;
+}
+
+#endif
diff --git a/proxy/logging/LogObject.h b/proxy/logging/LogObject.h
new file mode 100644
index 00000000..07c90e75
--- /dev/null
+++ b/proxy/logging/LogObject.h
@@ -0,0 +1,406 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_OBJECT_H
+#define LOG_OBJECT_H
+
+#include "libts.h"
+#include "Log.h"
+#include "LogFile.h"
+#include "LogFormat.h"
+#include "LogFilter.h"
+#include "LogHost.h"
+#include "LogBuffer.h"
+#include "LogAccess.h"
+#include "LogFilter.h"
+#include "ts/Vec.h"
+
+/*-------------------------------------------------------------------------
+  LogObject
+
+  This is a new addition to the Traffic Server logging as of the 3.1
+  (Panda) release.  This object corresponds to the new type of logfile
+  entity that will be the focal point for all logging, replacing the role
+  of the LogFormat object.  The LogObject will contain information about
+  the format being used, the physical file  attached, and any filters that
+  are in place.  The global logging configuration for a traffic server will
+  consist of a list of LogObjects.
+  -------------------------------------------------------------------------*/
+
+#define LOG_FILE_ASCII_OBJECT_FILENAME_EXTENSION ".log"
+#define LOG_FILE_BINARY_OBJECT_FILENAME_EXTENSION ".blog"
+#define LOG_FILE_PIPE_OBJECT_FILENAME_EXTENSION ".pipe"
+
+#define FLUSH_ARRAY_SIZE (512*4)
+
+#define LOG_OBJECT_ARRAY_DELTA 8
+
+#define ACQUIRE_API_MUTEX(_f) \
+ink_mutex_acquire(_APImutex); \
+Debug("log-api-mutex", _f)
+
+#define RELEASE_API_MUTEX(_f) \
+ink_mutex_release(_APImutex); \
+Debug("log-api-mutex", _f)
+
+class LogBufferManager
+{
+  private:
+    ASLL(LogBuffer, write_link) write_list;
+    int _num_flush_buffers;
+
+  public:
+    LogBufferManager() : _num_flush_buffers(0) { }
+
+    void add_to_flush_queue(LogBuffer *buffer) {
+      write_list.push(buffer);
+      ink_atomic_increment(&_num_flush_buffers, 1);
+    }
+
+    size_t preproc_buffers(LogBufferSink *sink);
+};
+
+// LogObject is atomically reference counted, and the reference count is always owned by
+// one or more LogObjectManagers.
+class LogObject : public RefCountObj
+{
+public:
+  enum LogObjectFlags
+  {
+    BINARY = 1,
+    REMOTE_DATA = 2,
+    WRITES_TO_PIPE = 4,
+    LOG_OBJECT_FMT_TIMESTAMP = 8, // always format a timestamp into each log line (for raw text logs)
+  };
+
+  // BINARY: log is written in binary format (rather than ascii)
+  // REMOTE_DATA: object receives data from remote collation clients, so
+  //              it should not be destroyed during a reconfiguration
+  // WRITES_TO_PIPE: object writes to a named pipe rather than to a file
+
+  LogObject(const LogFormat *format, const char *log_dir, const char *basename,
+                 LogFileFormat file_format, const char *header,
+                 Log::RollingEnabledValues rolling_enabled, int flush_threads,
+                 int rolling_interval_sec = 0, int rolling_offset_hr = 0,
+                 int rolling_size_mb = 0, bool auto_created = false)
+    TS_NONNULL(2 /* format is required */);
+  LogObject(LogObject &);
+  virtual ~LogObject();
+
+  void add_filter(LogFilter * filter, bool copy = true);
+  void set_filter_list(const LogFilterList & list, bool copy = true);
+  void add_loghost(LogHost * host, bool copy = true);
+
+  void set_remote_flag() { m_flags |= REMOTE_DATA; };
+  void set_fmt_timestamps() { m_flags |= LOG_OBJECT_FMT_TIMESTAMP; }
+
+  int log(LogAccess * lad, const char *text_entry = NULL);
+  int va_log(LogAccess * lad, const char * fmt, va_list ap);
+
+  unsigned roll_files(long time_now = 0);
+
+  int add_to_flush_queue(LogBuffer * buffer)
+  {
+    int idx = m_buffer_manager_idx++ % m_flush_threads;
+
+    m_buffer_manager[idx].add_to_flush_queue(buffer);
+
+    return idx;
+  }
+
+  size_t preproc_buffers(int idx = -1)
+  {
+    size_t nfb;
+
+    if (idx == -1)
+      idx = m_buffer_manager_idx++ % m_flush_threads;
+
+    if (m_logFile) {
+      nfb = m_buffer_manager[idx].preproc_buffers(m_logFile);
+    } else {
+      nfb = m_buffer_manager[idx].preproc_buffers(&m_host_list);
+    }
+    return nfb;
+  }
+
+  void check_buffer_expiration(long time_now);
+
+  void display(FILE * fd = stdout);
+  void displayAsXML(FILE * fd = stdout, bool extended = false);
+  static uint64_t compute_signature(LogFormat * format, char *filename, unsigned int flags);
+
+  const char *get_original_filename() const { return m_filename; }
+  const char *get_full_filename() const { return (m_alt_filename ? m_alt_filename : m_filename); }
+  const char *get_base_filename() const { return m_basename; }
+
+  off_t get_file_size_bytes();
+
+  uint64_t get_signature() const { return m_signature; }
+
+  int get_rolling_interval() const { return m_rolling_interval_sec; }
+
+  void set_log_file_header(const char *header) { m_logFile->change_header(header); }
+
+  void set_rolling_enabled(Log::RollingEnabledValues rolling_enabled)
+  {
+    _setup_rolling(rolling_enabled, m_rolling_interval_sec, m_rolling_offset_hr, m_rolling_size_mb);
+  }
+
+  void set_rolling_interval_sec(int rolling_interval_sec)
+  {
+    _setup_rolling(m_rolling_enabled, rolling_interval_sec, m_rolling_offset_hr, m_rolling_size_mb);
+  }
+
+ void set_rolling_offset_hr(int rolling_offset_hr)
+  {
+    _setup_rolling(m_rolling_enabled, m_rolling_interval_sec, rolling_offset_hr, m_rolling_size_mb);
+  }
+
+  void set_rolling_size_mb(int rolling_size_mb)
+  {
+    m_rolling_size_mb = rolling_size_mb;
+  }
+
+  bool is_collation_client() const { return (m_logFile ? false : true); }
+  bool receives_remote_data() const { return m_flags & REMOTE_DATA ? true : false; }
+  bool writes_to_pipe() const { return m_flags & WRITES_TO_PIPE ? true : false; }
+  bool writes_to_disk() { return (m_logFile && !(m_flags & WRITES_TO_PIPE) ? true : false); }
+
+  unsigned int get_flags() const { return m_flags; }
+
+  void rename(char *new_name);
+
+  bool has_alternate_name() const { return (m_alt_filename ? true : false); }
+
+  const char *get_format_string() { return (m_format ? m_format->format_string() : "<none>"); }
+
+  void force_new_buffer() {
+    _checkout_write(NULL, 0);
+  }
+
+  bool operator==(LogObject & rhs);
+  int do_filesystem_checks();
+
+public:
+  bool m_auto_created;
+  LogFormat * m_format;
+  Ptr<LogFile> m_logFile;
+  LogFilterList m_filter_list;
+  LogHostList m_host_list;
+
+private:
+  char *m_basename;             // the name of the file associated
+  // with this object, relative to
+  // the logging directory
+  char *m_filename;             // the full path of the file associated
+  // with this object
+  char *m_alt_filename;         // the full path of the file used
+  // instead of m_filename if the latter
+  // could not be used because of
+  // name conflicts
+
+  unsigned int m_flags;         // diverse object flags (see above)
+  uint64_t m_signature;         // INK_MD5 signature for object
+
+  Log::RollingEnabledValues m_rolling_enabled;
+  int m_flush_threads;          // number of flush threads
+  int m_rolling_interval_sec;   // time interval between rolls
+  // 0 means no rolling
+  int m_rolling_offset_hr;      //
+  int m_rolling_size_mb;        // size at which the log file rolls
+  long m_last_roll_time;        // the last time this object rolled
+  // its files
+
+  volatile head_p m_log_buffer;     // current work buffer
+  unsigned m_buffer_manager_idx;
+  LogBufferManager *m_buffer_manager;
+
+  void generate_filenames(const char *log_dir, const char *basename, LogFileFormat file_format);
+  void _setup_rolling(Log::RollingEnabledValues rolling_enabled, int rolling_interval_sec, int rolling_offset_hr, int rolling_size_mb);
+  unsigned _roll_files(long interval_start, long interval_end);
+
+  LogBuffer *_checkout_write(size_t * write_offset, size_t write_size);
+
+private:
+  // -- member functions not allowed --
+  LogObject();
+  LogObject & operator=(const LogObject &);
+};
+
+/*-------------------------------------------------------------------------
+  TextLog
+  -------------------------------------------------------------------------*/
+
+class TextLogObject:public LogObject
+{
+public:
+  inkcoreapi TextLogObject(const char *name, const char *log_dir,
+                           bool timestamps, const char *header,
+                           Log::RollingEnabledValues rolling_enabled,
+                           int flush_threads,
+                           int rolling_interval_sec,
+                           int rolling_offset_hr,
+                           int rolling_size_mb);
+
+  inkcoreapi int write(const char *format, ...) TS_PRINTFLIKE(2, 3);
+  inkcoreapi int va_write(const char *format, va_list ap);
+
+  static const LogFormat * textfmt;
+};
+
+/*-------------------------------------------------------------------------
+  RefCounter
+  -------------------------------------------------------------------------*/
+class RefCounter
+{
+public:
+  RefCounter(int *count)
+    : m_count(count)
+  {
+    ink_atomic_increment(m_count, 1);
+  }
+
+  ~RefCounter() {
+    ink_atomic_increment(m_count, -1);
+  }
+
+private:
+  int *m_count;
+};
+
+/*-------------------------------------------------------------------------
+  LogObjectManager
+
+  A log object manager keeps track of log objects and is responsible for
+  their deletion
+  -------------------------------------------------------------------------*/
+
+class LogObjectManager
+{
+public:
+  // error status
+  //
+  enum
+  {
+    NO_FILENAME_CONFLICTS = 0,
+    ERROR_ACCESSING_LOG_FILE,
+    ERROR_DETERMINING_FILE_INFO,
+    CANNOT_SOLVE_FILENAME_CONFLICTS,
+    ERROR_DOING_FILESYSTEM_CHECKS
+  };
+
+private:
+
+  typedef Vec<LogObject *> LogObjectList;
+
+  LogObjectList _objects;         // array of configured objects
+  LogObjectList _APIobjects;      // array of API objects
+
+public:
+    ink_mutex * _APImutex;      // synchronize access to array of API objects
+private:
+
+  int _manage_object(LogObject * log_object, bool is_api_object, int maxConflicts);
+  static bool _has_internal_filename_conflict(const char *filename, LogObjectList& objects);
+  int _solve_filename_conflicts(LogObject * log_obj, int maxConflicts);
+  int _solve_internal_filename_conflicts(LogObject * log_obj, int maxConflicts, int fileNum = 0);
+
+public:
+  LogObjectManager();
+  ~LogObjectManager();
+
+  // we don't define a destructor because the objects that the
+  // LogObjectManager manages are either passed along to another
+  // manager or moved to the list of inactive objects to be destroyed
+
+  int manage_object(LogObject * logObject, int maxConflicts = 99) {
+    return _manage_object(logObject, false, maxConflicts);
+  }
+
+  int manage_api_object(LogObject * logObject, int maxConflicts = 99) {
+    return _manage_object(logObject, true, maxConflicts);
+  }
+
+  // return success
+  bool unmanage_api_object(LogObject * logObject);
+
+  // Flush the buffers on all the managed log objects.
+  void flush_all_objects();
+
+  LogObject *get_object_with_signature(uint64_t signature);
+  void check_buffer_expiration(long time_now);
+
+  unsigned roll_files(long time_now);
+
+  int log(LogAccess * lad);
+  void display(FILE * str = stdout);
+  void add_filter_to_all(LogFilter * filter);
+  LogObject *find_by_format_name(const char *name) const ;
+  size_t preproc_buffers(int idx);
+  void open_local_pipes();
+  void transfer_objects(LogObjectManager & mgr);
+
+  bool has_api_objects() const  { return _APIobjects.length() > 0; }
+  unsigned get_num_objects() const { return _objects.length(); }
+  unsigned get_num_collation_clients() const;
+};
+
+inline bool
+LogObject::operator==(LogObject & old)
+{
+  if (!receives_remote_data() && !old.receives_remote_data()) {
+    return (get_signature() == old.get_signature() &&
+            (is_collation_client() && old.is_collation_client()?
+             m_host_list == old.m_host_list :
+             m_logFile && old.m_logFile &&
+             strcmp(m_logFile->get_name(), old.m_logFile->get_name()) == 0) &&
+            (m_filter_list == old.m_filter_list) &&
+            (m_rolling_interval_sec == old.m_rolling_interval_sec &&
+             m_rolling_offset_hr == old.m_rolling_offset_hr && m_rolling_size_mb == old.m_rolling_size_mb));
+  }
+  return false;
+}
+
+inline off_t
+LogObject::get_file_size_bytes()
+{
+  if (m_logFile) {
+    return m_logFile->get_size_bytes();
+  } else {
+    off_t max_size = 0;
+    LogHost *host;
+    for (host = m_host_list.first(); host; host = m_host_list.next(host)) {
+      LogFile *orphan_logfile = host->get_orphan_logfile();
+      if (orphan_logfile) {
+        off_t s = orphan_logfile->get_size_bytes();
+        if (s > max_size)
+          max_size = s;
+      }
+    }
+    return max_size;
+  }
+}
+
+#endif
diff --git a/proxy/logging/LogPredefined.cc b/proxy/logging/LogPredefined.cc
new file mode 100644
index 00000000..6bb5b189
--- /dev/null
+++ b/proxy/logging/LogPredefined.cc
@@ -0,0 +1,112 @@
+/** @file
+
+  This file implements predefined log formats
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogFormat.h"
+#include "LogPredefined.h"
+
+// predefined formats
+const char * const PreDefinedFormatInfo::squid =
+  "%<cqtq> %<ttms> %<chi> %<crc>/%<pssc> %<psql> %<cqhm> %<cquc> %<caun> %<phr>/%<pqsn> %<psct>";
+
+const char * const PreDefinedFormatInfo::common =
+  "%<chi> - %<caun> [%<cqtn>] \"%<cqtx>\" %<pssc> %<pscl>";
+
+const char * const PreDefinedFormatInfo::extended =
+  "%<chi> - %<caun> [%<cqtn>] \"%<cqtx>\" %<pssc> %<pscl> "
+  "%<sssc> %<sscl> %<cqbl> %<pqbl> %<cqhl> %<pshl> %<pqhl> %<sshl> %<tts>";
+
+const char * const PreDefinedFormatInfo::extended2 =
+  "%<chi> - %<caun> [%<cqtn>] \"%<cqtx>\" %<pssc> %<pscl> "
+  "%<sssc> %<sscl> %<cqbl> %<pqbl> %<cqhl> %<pshl> %<pqhl> %<sshl> %<tts> %<phr> %<cfsc> %<pfsc> %<crc>";
+
+PreDefinedFormatInfo *
+MakePredefinedErrorLog(LogConfig * config)
+{
+  LogFormat * fmt;
+
+  fmt = MakeTextLogFormat("error");
+  config->global_format_list.add(fmt, false);
+
+  // The error log is always ASCII, and currently does not work correctly with log collation.
+  return new PreDefinedFormatInfo(fmt, "error.log", NULL /* no log header */, LOG_FILE_ASCII, false);
+}
+
+PreDefinedFormatList::PreDefinedFormatList()
+{
+}
+
+PreDefinedFormatList::~PreDefinedFormatList()
+{
+  PreDefinedFormatInfo * info;
+  while (!this->formats.empty()) {
+    info = this->formats.pop();
+    delete info;
+  }
+}
+
+void
+PreDefinedFormatList::init(LogConfig * config)
+{
+  LogFormat * fmt;
+
+  // All these predefined formats work with log collation. They are optionally binary or ASCII, each
+  // with a different config option.
+#define make_format(is_ascii)  ((is_ascii) ? LOG_FILE_ASCII : LOG_FILE_BINARY )
+
+  fmt = new LogFormat("squid", PreDefinedFormatInfo::squid);
+  config->global_format_list.add(fmt, false);
+  Debug("log", "squid format added to the global format list");
+
+  if (config->squid_log_enabled) {
+    this->formats.enqueue(new PreDefinedFormatInfo(fmt, config->squid_log_name, config->squid_log_header, make_format(config->squid_log_is_ascii), true));
+  }
+
+  fmt = new LogFormat("common", PreDefinedFormatInfo::common);
+  config->global_format_list.add(fmt, false);
+  Debug("log", "common format added to the global format list");
+
+  if (config->common_log_enabled) {
+    this->formats.enqueue(new PreDefinedFormatInfo(fmt, config->common_log_name, config->common_log_header, make_format(config->common_log_is_ascii), true));
+  }
+
+  fmt = new LogFormat("extended", PreDefinedFormatInfo::extended);
+  config->global_format_list.add(fmt, false);
+  Debug("log", "extended format added to the global format list");
+
+  if (config->extended_log_enabled) {
+    this->formats.enqueue(new PreDefinedFormatInfo(fmt, config->extended_log_name, config->extended_log_header, make_format(config->extended_log_is_ascii), true));
+  }
+
+  fmt = new LogFormat("extended2", PreDefinedFormatInfo::extended2);
+  config->global_format_list.add(fmt, false);
+  Debug("log", "extended2 format added to the global format list");
+
+  if (config->extended2_log_enabled) {
+    this->formats.enqueue(new PreDefinedFormatInfo(fmt, config->extended2_log_name, config->extended2_log_header, make_format(config->extended2_log_is_ascii), true));
+  }
+
+#undef make_format
+}
+
diff --git a/proxy/logging/LogPredefined.h b/proxy/logging/LogPredefined.h
new file mode 100644
index 00000000..2d1bae9b
--- /dev/null
+++ b/proxy/logging/LogPredefined.h
@@ -0,0 +1,71 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef LOG_PREDEFINED_H
+#define LOG_PREDEFINED_H
+
+#include "libts.h"
+
+class LogFormat;
+class LogConfig;
+
+// Collects all the necesary info to build a pre-defined object.
+struct PreDefinedFormatInfo
+{
+  LogFormat *   format;
+  const char *  filename;
+  const char *  header;
+  LogFileFormat filefmt;
+  bool          collatable; // whether log collation is supported
+
+  LINK(PreDefinedFormatInfo, link);
+
+  PreDefinedFormatInfo(LogFormat * fmt, const char * fname, const char * hdr, LogFileFormat _f, bool _c)
+    :format(fmt), filename(fname), header(hdr), filefmt(_f), collatable(_c)
+  { }
+
+  static const char * const squid;
+  static const char * const common;
+  static const char * const extended;
+  static const char * const extended2;
+};
+
+typedef Queue<PreDefinedFormatInfo> PreDefinedFormatInfoList;
+
+struct PreDefinedFormatList
+{
+  PreDefinedFormatList();
+  ~PreDefinedFormatList();
+
+  // Initialize the predefined format list from the given LogConfig. This has the side-effect of
+  // adding the predefined LogFormats to the LogConfig global_format_list.
+  void init(LogConfig * config);
+
+  PreDefinedFormatInfoList formats;
+};
+
+// Return a PreDefinedFormatInfo structure for the ASCII error log.
+PreDefinedFormatInfo *
+MakePredefinedErrorLog(LogConfig * config);
+
+#endif /* LOG_PREDEFINED_H */
diff --git a/proxy/logging/LogSock.cc b/proxy/logging/LogSock.cc
new file mode 100644
index 00000000..b97b90bd
--- /dev/null
+++ b/proxy/logging/LogSock.cc
@@ -0,0 +1,743 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "P_EventSystem.h"
+#include "Error.h"
+
+#include "LogSock.h"
+#include "LogUtils.h"
+
+static const int LS_SOCKTYPE = SOCK_STREAM;
+static const int LS_PROTOCOL = 0;
+
+/**
+  LogSock
+
+  The constructor establishes the connection table (ct) and initializes the
+  first entry of the table (index 0) to be the port on which new
+  connections are accepted.
+*/ 
+LogSock::LogSock(int max_connects)
+  :
+ct((ConnectTable *) NULL),
+m_accept_connections(false),
+m_max_connections(max_connects + 1)
+{
+  ink_assert(m_max_connections > 0);
+
+  //
+  // allocate space for the connection table.
+  //
+  ct = new ConnectTable[m_max_connections];
+  ink_assert(ct != NULL);
+  for (int i = 0; i < m_max_connections; ++i) {
+    init_cid(i, NULL, 0, -1, LogSock::LS_STATE_UNUSED);
+  }
+
+  Debug("log-sock", "LogSocket established");
+}
+
+/**
+  LogSock::~LogSock
+
+  Shut down all connections and delete memory for the tables.
+*/ 
+LogSock::~LogSock()
+{
+  Debug("log-sock", "shutting down LogSocket on [%s:%d]", ct[0].host, ct[0].port);
+
+  this->close();                // close all connections
+  this->close(0);               // close accept socket
+  delete[]ct;                   // delete the connection table
+}
+
+/**
+  LogSock::listen
+
+  This routine sets up the LogSock to begin accepting connections on the
+  given @param accept port.  A maximum number of connections is also specified,
+  which is used to establish the size of the listen queue.
+
+  @Return zero if all goes well, -1 otherwise.
+*/
+int
+LogSock::listen(int accept_port, int family)
+{
+  IpEndpoint bind_addr;
+  int size = sizeof(bind_addr);
+  char this_host[MAXDNAME];
+  int ret;
+  SOCKET accept_sd;
+
+  Debug("log-sock", "Listening ...");
+
+  // Set up local address for bind.
+  bind_addr.setToAnyAddr(family);
+  if (!bind_addr.isValid()) {
+    Warning("Could not set up socket - invalid address family %d", family);
+    return -1;
+  }
+  bind_addr.port() = htons(accept_port);
+  size = ats_ip_size(&bind_addr.sa);
+
+  //
+  // create the socket for accepting new connections
+  //
+  accept_sd =::socket(family, LS_SOCKTYPE, LS_PROTOCOL);
+  if (accept_sd < 0) {
+    Warning("Could not create a socket for family %d: %s", family, strerror(errno));
+    return -1;
+  }
+  //
+  // Set socket options (NO_LINGER, TCP_NODELAY, SO_REUSEADDR)
+  //
+  // CLOSE ON EXEC
+  if ((ret = safe_fcntl(accept_sd, F_SETFD, 1)) < 0) {
+    Warning("Could not set option CLOSE ON EXEC on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+  // NO_LINGER
+  struct linger l;
+  l.l_onoff = 0;
+  l.l_linger = 0;
+  if ((ret = safe_setsockopt(accept_sd, SOL_SOCKET, SO_LINGER, (char *) &l, sizeof(l))) < 0) {
+    Warning("Could not set option NO_LINGER on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+  // REUSEADDR
+  if ((ret = safe_setsockopt(accept_sd, SOL_SOCKET, SO_REUSEADDR, SOCKOPT_ON, sizeof(int))) < 0) {
+    Warning("Could not set option REUSEADDR on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+
+  // Bind to local address.
+  if ((ret = safe_bind(accept_sd, &bind_addr.sa, size)) < 0) {
+    Warning("Could not bind port: %s", strerror(errno));
+    return -1;
+  }
+
+  if ((ret = safe_setsockopt(accept_sd, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int))) < 0) {
+    Warning("Could not set option TCP_NODELAY on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+
+  if ((ret = safe_setsockopt(accept_sd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int))) < 0) {
+    Warning("Could not set option SO_KEEPALIVE on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+
+  //
+  // if the accept_port argument was zero, then the system just picked
+  // one for us, so we need to find out what it was and record it in the
+  // connection table correctly.
+  //
+  if (accept_port == 0) {
+    ret = safe_getsockname(accept_sd, &bind_addr.sa, &size);
+    if (ret == 0) {
+      accept_port = ntohs(bind_addr.port());
+    }
+  }
+  //
+  // establish the listen queue for incomming connections
+  //
+  if ((ret = safe_listen(accept_sd, m_max_connections)) < 0) {
+    Warning("Could not establish listen queue: %s", strerror(errno));
+    return -1;
+  }
+  //
+  // initialize the first entry of the table for accepting incoming
+  // connection requests.
+  //
+  if (gethostname(&this_host[0], MAXDNAME) != 0) {
+    snprintf(this_host, sizeof(this_host), "unknown-host");
+  }
+  init_cid(0, this_host, accept_port, accept_sd, LogSock::LS_STATE_INCOMING);
+
+  m_accept_connections = true;
+  Debug("log-sock", "LogSocket established on [%s:%d]", this_host, accept_port);
+
+  return 0;
+}
+
+/**
+  LogSock::accept
+
+  Accept a new connection.  This is a blocking operation, so you may want
+  to use one of the non-blocking pending_XXX calls to see if there is a
+  connection first.
+  @return This returns the table index for the new connection.
+*/
+int
+LogSock::accept()
+{
+  int cid, connect_sd;
+  IpEndpoint connect_addr;
+  socklen_t size = sizeof(connect_addr);
+  in_port_t connect_port;
+
+  if (!m_accept_connections || ct[0].sd < 0) {
+    return LogSock::LS_ERROR_NO_CONNECTION;
+  }
+
+  cid = new_cid();
+  if (cid < 0) {
+    return LogSock::LS_ERROR_CONNECT_TABLE_FULL;
+  }
+
+  Debug("log-sock", "waiting to accept a new connection");
+
+  connect_sd =::accept(ct[0].sd, &connect_addr.sa, &size);
+  if (connect_sd < 0) {
+    return LogSock::LS_ERROR_ACCEPT;
+  }
+  connect_port = ntohs(connect_addr.port());
+
+  init_cid(cid, NULL, connect_port, connect_sd, LogSock::LS_STATE_INCOMING);
+
+  Debug("log-sock", "new connection accepted, cid = %d, port = %d", cid, connect_port);
+
+  return cid;
+}
+
+/**
+  LogSock::connect
+
+  Establish a new connection to another machine [host:port], and place this
+  information into the connection and poll tables.
+*/  
+int
+LogSock::connect(sockaddr const* ip)
+{
+  int cid, connect_sd, ret;
+  uint16_t port;
+
+  if (!ats_is_ip(ip)) {
+    Note("Invalid host IP or port number for connection");
+    return LogSock::LS_ERROR_NO_SUCH_HOST;
+  }
+  port = ntohs(ats_ip_port_cast(ip));
+
+  ip_port_text_buffer ipstr;
+  Debug("log-sock", "connecting to [%s:%d]", ats_ip_nptop(ip, ipstr, sizeof(ipstr)), port);
+
+  // get an index into the connection table
+  cid = new_cid();
+  if (cid < 0) {
+    Note("No more connections allowed for this socket");
+    return LogSock::LS_ERROR_CONNECT_TABLE_FULL;
+  }
+  // initialize a new socket descriptor
+  connect_sd =::socket(ip->sa_family, LS_SOCKTYPE, LS_PROTOCOL);
+  if (connect_sd < 0) {
+    Note("Error initializing socket for connection: %d", connect_sd);
+    return LogSock::LS_ERROR_SOCKET;
+  }
+
+  if ((ret = safe_setsockopt(connect_sd, IPPROTO_TCP, TCP_NODELAY, SOCKOPT_ON, sizeof(int))) < 0) {
+    Note("Could not set option TCP_NODELAY on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+
+  if ((ret = safe_setsockopt(connect_sd, SOL_SOCKET, SO_KEEPALIVE, SOCKOPT_ON, sizeof(int))) < 0) {
+    Note("Could not set option SO_KEEPALIVE on socket (%d): %s", ret, strerror(errno));
+    return -1;
+  }
+
+  // attempt to connect
+  if (::connect(connect_sd, ip, ats_ip_size(ip)) != 0) {
+    ::close(connect_sd);
+    Note("Failure to connect");
+    return LogSock::LS_ERROR_CONNECT;
+  }
+
+  init_cid(cid, ipstr, port, connect_sd, LogSock::LS_STATE_OUTGOING);
+
+  Debug("log-sock", "outgoing connection to [%s:%d] established, fd  = %d", ipstr, port, cid);
+
+  return cid;
+}
+
+/**
+  LogSock::pending_data
+
+  This private routine checks for incoming data on some of the socket
+  descriptors.
+  @return Returns true if there is something incoming, with *cid
+  set to the index corresponding to the incoming socket.
+*/ 
+bool LogSock::pending_data(int *cid, int timeout_msec, bool include_connects)
+{
+  int
+    start_index,
+    ret,
+    n_poll_fds,
+    i;
+  static struct pollfd
+    fds[LS_CONST_CLUSTER_MAX_MACHINES];
+  int
+    fd_to_cid[LS_CONST_CLUSTER_MAX_MACHINES];
+
+  ink_assert(m_max_connections <= (LS_CONST_CLUSTER_MAX_MACHINES + 1));
+  ink_assert(cid != NULL);
+  ink_assert(timeout_msec >= 0);
+
+  //
+  // we'll use the poll() routine, which replaces the select routine
+  // to support a larger number of socket descriptors.  to use poll,
+  // we need to set-up a pollfd array for the socket descriptors
+  // that will be polled.
+  //
+
+  if (*cid >= 0) {              // look for data on this specific socket
+
+    ink_assert(*cid < m_max_connections);
+    fds[0].fd = ct[*cid].sd;
+    fds[0].events = POLLIN;
+    fds[0].revents = 0;
+    fd_to_cid[0] = *cid;
+    n_poll_fds = 1;
+
+  } else {                      // look for data on any INCOMING socket
+
+    if (include_connects) {
+      start_index = 0;
+    } else {
+      start_index = 1;
+    }
+    n_poll_fds = 0;
+    for (i = start_index; i < m_max_connections; i++) {
+      if (ct[i].state == LogSock::LS_STATE_INCOMING) {
+        fds[n_poll_fds].fd = ct[i].sd;
+        fds[n_poll_fds].events = POLLIN;
+        fds[n_poll_fds].revents = 0;
+        fd_to_cid[n_poll_fds] = i;
+        n_poll_fds++;
+      }
+    }
+  }
+
+  if (n_poll_fds == 0) {
+    return false;
+  }
+
+  ret =::poll(fds, n_poll_fds, timeout_msec);
+
+  if (ret == 0) {
+    return false;               // timeout
+  } else if (ret < 0) {
+    Debug("log-sock", "error on poll");
+    return false;               // error
+  }
+  //
+  // a positive return value indicates how many descriptors had something
+  // waiting on them.  We only care about finding one of them, so we'll
+  // look for the first one with an revents flag set to POLLIN.
+  //
+
+  for (i = 0; i < n_poll_fds; i++) {
+    if (fds[i].revents & POLLIN) {
+      *cid = fd_to_cid[i];
+      Debug("log-sock", "poll successful on index %d", *cid);
+      return true;
+    }
+  }
+
+  Debug("log-sock", "invalid revents in the poll table");
+  return false;
+}
+
+/**
+  LogSock::pending_any
+
+  Check for incomming data on any of the INCOMING sockets.
+*/
+bool LogSock::pending_any(int *cid, int timeout_msec)
+{
+  ink_assert(cid != NULL);
+  *cid = -1;
+  if (m_accept_connections) {
+    return pending_data(cid, timeout_msec, true);
+  } else {
+    return pending_data(cid, timeout_msec, false);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogSock::pending_message_any
+
+  Check for an incomming message on any of the INCOMING sockets, aside from
+  the socket reserved for accepting new connections.
+  -------------------------------------------------------------------------*/
+
+bool LogSock::pending_message_any(int *cid, int timeout_msec)
+{
+  ink_assert(cid != NULL);
+  *cid = -1;
+  return pending_data(cid, timeout_msec, false);
+}
+
+/**
+  LogSock::pending_message_on
+
+  Check for incomming data on the specified socket.
+*/
+bool LogSock::pending_message_on(int cid, int timeout_msec)
+{
+  return pending_data(&cid, timeout_msec, false);
+}
+
+/**
+  LogSock::pending_connect
+
+  Check for an incoming connection request on the socket reserved for that
+  (cid = 0).
+*/
+bool LogSock::pending_connect(int timeout_msec)
+{
+  int
+    cid = 0;
+  if (m_accept_connections) {
+    return pending_data(&cid, timeout_msec, true);
+  } else {
+    return false;
+  }
+}
+
+/**
+  LogSock::close
+
+  Close one (cid specified) or all (no argument) sockets, except for the
+  incomming connection socket.
+*/
+void
+LogSock::close(int cid)
+{
+  ink_assert(cid >= 0 && cid < m_max_connections);
+
+  Debug("log-sock", "closing connection for cid %d", cid);
+
+  if (ct[cid].state != LogSock::LS_STATE_UNUSED) {
+    ::close(ct[cid].sd);
+    delete ct[cid].host;
+    ct[cid].state = LogSock::LS_STATE_UNUSED;
+  }
+}
+
+void
+LogSock::close()
+{
+  for (int i = 1; i < m_max_connections; i++) {
+    this->close(i);
+  }
+}
+
+/**
+  LogSock::write
+
+  Write data onto the socket corresponding to the given cid.  Return the
+  number of bytes actually written.
+*/
+int
+LogSock::write(int cid, void *buf, int bytes)
+{
+  LogSock::MsgHeader header = {
+  0};
+  header.msg_bytes = 0;
+  int ret;
+
+  ink_assert(cid >= 0 && cid < m_max_connections);
+
+  if (buf == NULL || bytes == 0) {
+    return 0;
+  }
+
+  if (ct[cid].state != LogSock::LS_STATE_OUTGOING) {
+    return LogSock::LS_ERROR_STATE;
+  }
+
+  Debug("log-sock", "Sending %d bytes to cid %d", bytes, cid);
+
+  //
+  // send the message header
+  //
+  Debug("log-sock", "   sending header (%zu bytes)", sizeof(LogSock::MsgHeader));
+  header.msg_bytes = bytes;
+  ret =::send(ct[cid].sd, (char *) &header, sizeof(LogSock::MsgHeader), 0);
+  if (ret != sizeof(LogSock::MsgHeader)) {
+    return LogSock::LS_ERROR_WRITE;
+  }
+  //
+  // send the actual data
+  //
+  Debug("log-sock", "   sending data (%d bytes)", bytes);
+  return::send(ct[cid].sd, (char *) buf, bytes, 0);
+}
+
+/**
+  LogSock::read
+
+  Read data from the specified connection.  This is a blocking call, so you
+  may want to use one of the pending_XXX calls to see if there is anything
+  to read first.  Returns number of bytes read.
+*/
+int
+LogSock::read(int cid, void *buf, unsigned maxsize)
+{
+  LogSock::MsgHeader header;
+  unsigned size;
+
+  ink_assert(cid >= 0 && cid < m_max_connections);
+  ink_assert(buf != NULL);
+
+  if (ct[cid].state != LogSock::LS_STATE_INCOMING) {
+    return LogSock::LS_ERROR_STATE;
+  }
+
+  Debug("log-sock", "reading data from cid %d", cid);
+
+  if (read_header(ct[cid].sd, &header) < 0) {
+    return LogSock::LS_ERROR_READ;
+  }
+
+  size = ((unsigned) header.msg_bytes < maxsize) ? (unsigned) header.msg_bytes : maxsize;
+  return read_body(ct[cid].sd, buf, size);
+}
+
+/**
+  LogSock::read_alloc
+
+  This routine reads data from the specified connection, and returns a
+  pointer to newly allocated space (allocated with new) containing the
+  data.  The number of bytes read is set in the argument size, which is
+  expected to be a pointer to an int.
+*/
+void *
+LogSock::read_alloc(int cid, int *size)
+{
+  LogSock::MsgHeader header;
+  char *data;
+
+  ink_assert(cid >= 0 && cid < m_max_connections);
+
+  if (ct[cid].state != LogSock::LS_STATE_INCOMING) {
+    return NULL;
+  }
+
+  Debug("log-sock", "reading data from cid %d", cid);
+
+  if (read_header(ct[cid].sd, &header) < 0) {
+    return NULL;
+  }
+
+  data = new char[header.msg_bytes];
+  ink_assert(data != NULL);
+
+  if ((*size = read_body(ct[cid].sd, data, header.msg_bytes)) < 0) {
+    delete[] data;
+    data = NULL;
+  }
+
+  return data;
+}
+
+/**
+*/
+bool LogSock::is_connected(int cid, bool ping) const
+{
+  int
+    i,
+    j,
+    flags;
+
+  ink_assert(cid >= 0 && cid < m_max_connections);
+
+  if (ct[cid].state == LogSock::LS_STATE_UNUSED) {
+    return false;
+  }
+
+  if (ping) {
+    flags = fcntl(ct[cid].sd, F_GETFL);
+    ::fcntl(ct[cid].sd, F_SETFL, O_NONBLOCK);
+    j =::recv(ct[cid].sd, (char *) &i, sizeof(int), MSG_PEEK);
+    ::fcntl(ct[cid].sd, F_SETFL, flags);
+    if (j != 0) {
+      return true;
+    } else {
+      return false;
+    }
+  } else {
+    return (ct[cid].sd >= 0);
+  }
+}
+
+/**
+*/
+void
+LogSock::check_connections()
+{
+  for (int i = 1; i < m_max_connections; i++) {
+    if (ct[i].state == LogSock::LS_STATE_INCOMING) {
+      if (!is_connected(i, true)) {
+        Debug("log-sock", "Connection %d is no longer connected", i);
+        close(i);
+      }
+    }
+  }
+}
+
+/**
+  This routine will check to ensure that the client connecting is
+  authorized to use the log collation port.  To authorize, the client is
+  expected to send the logging secret string.
+*/
+bool LogSock::authorized_client(int cid, char *key)
+{
+  //
+  // Wait for up to 5 seconds for the client to authenticate
+  //
+  if (!pending_message_on(cid, 5000)) {
+    return false;
+  }
+  //
+  // Ok, the client has a pending message, so check to see if it matches
+  // the given key.
+  //
+  char
+    buf[1024];
+  int
+    size = this->read(cid, buf, 1024);
+  ink_assert(size >= 0 && size <= 1024);
+
+  if (strncmp(buf, key, size) == 0) {
+    return true;
+  }
+
+  return false;
+}
+
+/**
+*/
+char *
+LogSock::connected_host(int cid)
+{
+  ink_assert(cid >= 0 && cid < m_max_connections);
+  return ct[cid].host;
+}
+
+/**
+*/
+int
+LogSock::connected_port(int cid)
+{
+  ink_assert(cid >= 0 && cid < m_max_connections);
+  return ct[cid].port;
+}
+
+/*-------------------------------------------------------------------------
+  LOCAL ROUTINES
+  -------------------------------------------------------------------------*/
+
+/**
+  LogSock::new_cid
+*/
+int
+LogSock::new_cid()
+{
+  int cid = -1;
+
+  for (int i = 1; i < m_max_connections; i++) {
+    if (ct[i].state == LogSock::LS_STATE_UNUSED) {
+      cid = i;
+      break;
+    }
+  }
+
+  return cid;
+}
+
+/**
+  LogSock::init_cid
+*/
+void
+LogSock::init_cid(int cid, char *host, int port, int sd, LogSock::State state)
+{
+  ink_assert(cid >= 0 && cid < m_max_connections);
+  // host can be NULL if it's not known
+  ink_assert(port >= 0);
+  // sd can be -1 to indicate no connection yet
+  ink_assert(state >= 0 && state < LogSock::LS_N_STATES);
+
+  if (host != NULL) {
+    const size_t host_size = strlen(host) + 1;
+    ct[cid].host = new char[host_size];
+    ink_strlcpy(ct[cid].host, host, host_size);
+  } else {
+    ct[cid].host = NULL;
+  }
+
+  ct[cid].port = port;
+  ct[cid].sd = sd;
+  ct[cid].state = state;
+}
+
+/**
+*/
+int
+LogSock::read_header(int sd, LogSock::MsgHeader * header)
+{
+  ink_assert(sd >= 0);
+  ink_assert(header != NULL);
+
+  int bytes =::recv(sd, (char *) header, sizeof(LogSock::MsgHeader), 0);
+  if (bytes != sizeof(LogSock::MsgHeader)) {
+    return -1;
+  }
+
+  return bytes;
+}
+
+/**
+*/
+int
+LogSock::read_body(int sd, void *buf, int bytes)
+{
+  ink_assert(sd >= 0);
+  ink_assert(buf != NULL);
+  ink_assert(bytes >= 0);
+
+  if (bytes == 0) {
+    return 0;
+  }
+
+  unsigned bytes_left = bytes;
+  unsigned bytes_read;
+  char *to = (char *) buf;
+
+  while (bytes_left) {
+    bytes_read =::recv(sd, to, bytes_left, 0);
+    to += bytes_read;
+    bytes_left -= bytes_read;
+  }
+
+  return bytes;
+}
diff --git a/proxy/logging/LogSock.h b/proxy/logging/LogSock.h
new file mode 100644
index 00000000..21a7ad95
--- /dev/null
+++ b/proxy/logging/LogSock.h
@@ -0,0 +1,139 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef LOG_SOCK_H
+#define LOG_SOCK_H
+
+#include "libts.h"
+
+/*-------------------------------------------------------------------------
+  LogSock
+
+  This class implements a multiplexed socket class that supports both
+  client and server functionality.
+  -------------------------------------------------------------------------*/
+
+class LogSock
+{
+public:
+  enum Constant
+  {
+    LS_CONST_PACKETSIZE = 1024,
+    LS_CONST_CLUSTER_MAX_MACHINES = 256
+  };
+
+  enum Err
+  {
+    LS_ERROR_UNKNOWN = -1,
+    LS_ERROR_CONNECT_TABLE_FULL = -3,
+    LS_ERROR_SOCKET = -4,
+    LS_ERROR_BIND = -5,
+    LS_ERROR_CONNECT = -6,
+    LS_ERROR_ACCEPT = -7,
+    LS_ERROR_NO_SUCH_HOST = -8,
+    LS_ERROR_NO_CONNECTION = -9,
+    LS_ERROR_STATE = -10,
+    LS_ERROR_WRITE = -11,
+    LS_ERROR_READ = -12
+  };
+
+  enum State
+  {
+    LS_STATE_UNUSED = 0,
+    LS_STATE_INCOMING,
+    LS_STATE_OUTGOING,
+    LS_N_STATES
+  };
+
+public:
+  LogSock(int max_connects = 1);
+  ~LogSock();
+
+  bool pending_any(int *cid, int timeout_msec = 0);
+  bool pending_message_any(int *cid, int timeout_msec = 0);
+  bool pending_message_on(int cid, int timeout_msec = 0);
+  bool pending_connect(int timeout_msec = 0);
+
+  int listen(int accept_port, int family = AF_INET);
+  int accept();
+  int connect(sockaddr const* ip);
+
+  void close(int cid);          // this connection
+  void close();                 // all connections
+
+  int write(int cid, void *buf, int bytes);
+
+  int read(int cid, void *buf, unsigned maxsize);
+  void *read_alloc(int cid, int *size);
+
+  char *on_host()
+  {
+    return ct[0].host;
+  }
+
+  int on_port()
+  {
+    return ct[0].port;
+  }
+
+  bool is_connected(int cid, bool ping = false) const;
+  void check_connections();
+  bool authorized_client(int cid, char *key);
+  char *connected_host(int cid);
+  int connected_port(int cid);
+
+private:
+  struct ConnectTable
+  {
+    char *host;                 // hostname for this connection
+    int port;                   // port number for this connection
+    int sd;                     // socket descriptor for this connection
+    State state;                // state of this entry
+  };
+
+  struct MsgHeader
+  {
+    int msg_bytes;              // length of the following message
+  };
+
+private:
+  bool pending_data(int *cid, int timeout_msec, bool include_connects);
+  int new_cid();
+  void init_cid(int cid, char *host, int port, int sd, State state);
+  int read_header(int sd, MsgHeader * header);
+  int read_body(int sd, void *buf, int bytes);
+
+private:
+  ConnectTable * ct;            // list of all connections; index 0 is
+  // the accept port.
+  bool m_accept_connections;    // do we accept new connections?
+  int m_max_connections;        // max size of all tables
+
+private:
+  LogSock(const LogSock &);
+  LogSock & operator=(const LogSock &);
+};
+
+#endif
diff --git a/proxy/logging/LogStandalone.cc b/proxy/logging/LogStandalone.cc
new file mode 100644
index 00000000..879a6403
--- /dev/null
+++ b/proxy/logging/LogStandalone.cc
@@ -0,0 +1,256 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ LogStandalone.cc
+
+
+ ***************************************************************************/
+
+#include "libts.h"
+#include "ink_sys_control.h"
+#include "signals.h"
+#include "DiagsConfig.h"
+#include "Main.h"
+
+#include "Error.h"
+#include "P_EventSystem.h"
+#include "P_RecProcess.h"
+
+#include "ProcessManager.h"
+#include "MgmtUtils.h"
+// Needs LibRecordsConfigInit()
+#include "RecordsConfig.h"
+
+#define LOG_FILENAME_SIZE 255
+
+class HttpBodyFactory;
+
+// globals the rest of the system depends on
+extern int fds_limit;
+extern int cluster_port_number;
+
+int diags_init = 0;
+int command_flag = 0;
+int http_accept_port_number = 0;
+int http_accept_file_descriptor = 0;
+int remote_management_flag = 0;
+int auto_clear_hostdb_flag = 0;
+char proxy_name[MAXDNAME + 1] = "unknown";
+
+char error_tags[1024] = "";
+char action_tags[1024] = "";
+char command_string[512] = "";
+
+
+//Diags *diags = NULL;
+DiagsConfig *diagsConfig = NULL;
+HttpBodyFactory *body_factory = NULL;
+AppVersionInfo appVersionInfo;
+
+/*-------------------------------------------------------------------------
+  init_system
+  -------------------------------------------------------------------------*/
+
+static void
+init_system(bool notify_syslog)
+{
+  fds_limit = ink_max_out_rlimit(RLIMIT_NOFILE, true, false);
+
+  init_signals();
+  if (notify_syslog) {
+    syslog(LOG_NOTICE, "NOTE: --- %s Starting ---", appVersionInfo.AppStr);
+    syslog(LOG_NOTICE, "NOTE: %s Version: %s", appVersionInfo.AppStr, appVersionInfo.FullVersionInfoStr);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  initialize_process_manager
+  -------------------------------------------------------------------------*/
+
+static void
+initialize_process_manager()
+{
+  mgmt_use_syslog();
+
+  // Temporary Hack to Enable Communuication with LocalManager
+  if (getenv("PROXY_REMOTE_MGMT")) {
+    remote_management_flag = true;
+  }
+
+  // diags should have been initialized by caller, e.g.: sac.cc
+  ink_assert(diags);
+
+  RecProcessInit(remote_management_flag ? RECM_CLIENT : RECM_STAND_ALONE, diags);
+
+  if (!remote_management_flag) {
+    LibRecordsConfigInit();
+    RecordsConfigOverrideFromEnvironment();
+  }
+
+  //
+  // Start up manager
+  pmgmt = new ProcessManager(remote_management_flag);
+
+  pmgmt->start();
+
+  RecProcessInitMessage(remote_management_flag ? RECM_CLIENT : RECM_STAND_ALONE);
+
+  pmgmt->reconfigure();
+
+  //
+  // Define version info records
+  //
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.short", appVersionInfo.VersionStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.long", appVersionInfo.FullVersionInfoStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_number", appVersionInfo.BldNumStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_time", appVersionInfo.BldTimeStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_date", appVersionInfo.BldDateStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_machine", appVersionInfo.BldMachineStr, RECP_NON_PERSISTENT);
+  RecRegisterStatString(RECT_PROCESS, "proxy.process.version.server.build_person", appVersionInfo.BldPersonStr, RECP_NON_PERSISTENT);
+//    RecRegisterStatString(RECT_PROCESS,
+//                         "proxy.process.version.server.build_compile_flags",
+//                         appVersionInfo.BldCompileFlagsStr,
+//                         RECP_NON_PERSISTENT);
+}
+
+/*-------------------------------------------------------------------------
+  shutdown_system
+  -------------------------------------------------------------------------*/
+
+void
+shutdown_system()
+{
+}
+
+
+/*-------------------------------------------------------------------------
+  check_lockfile
+  -------------------------------------------------------------------------*/
+
+static void
+check_lockfile()
+{
+  int err;
+  pid_t holding_pid;
+  char *lockfile = NULL;
+
+  if (access(Layout::get()->runtimedir, R_OK | W_OK) == -1) {
+    fprintf(stderr,"unable to access() dir'%s': %d, %s\n", Layout::get()->runtimedir, errno, strerror(errno));
+    fprintf(stderr," please set correct path in env variable TS_ROOT \n");
+    _exit(1);
+  }
+  lockfile = Layout::relative_to(Layout::get()->runtimedir, SERVER_LOCK);
+
+  Lockfile server_lockfile(lockfile);
+  err = server_lockfile.Get(&holding_pid);
+
+  if (err != 1) {
+    char *reason = strerror(-err);
+    fprintf(stderr, "FATAL: Can't acquire lockfile '%s'", lockfile);
+
+    if ((err == 0) && (holding_pid != -1)) {
+#if defined(solaris)
+      fprintf(stderr, " (Lock file held by process ID %d)\n", (int)holding_pid);
+#else
+      fprintf(stderr, " (Lock file held by process ID %d)\n", holding_pid);
+#endif
+    } else if ((err == 0) && (holding_pid == -1)) {
+      fprintf(stderr, " (Lock file exists, but can't read process ID)\n");
+    } else if (reason) {
+      fprintf(stderr, " (%s)\n", reason);
+    } else {
+      fprintf(stderr, "\n");
+    }
+    _exit(1);
+  }
+  ats_free(lockfile);
+}
+
+/*-------------------------------------------------------------------------
+  init_log_standalone
+
+  This routine should be called from the main() function of the standalone
+  program.
+  -------------------------------------------------------------------------*/
+
+void
+init_log_standalone(const char *pgm_name, bool one_copy)
+{
+  char logfile[LOG_FILENAME_SIZE];
+
+  // ensure that only one copy of the sac is running
+  //
+  if (one_copy) {
+    check_lockfile();
+  }
+
+  snprintf(logfile, sizeof(logfile), "%s.log", pgm_name);
+
+  // set stdin/stdout to be unbuffered
+  //
+  setbuf(stdin, NULL);
+  setbuf(stdout, NULL);
+
+  openlog(pgm_name, LOG_PID | LOG_NDELAY | LOG_NOWAIT, LOG_DAEMON);
+
+  init_system(true);
+  initialize_process_manager();
+  diagsConfig = new DiagsConfig(logfile, error_tags, action_tags);
+  diags = diagsConfig->diags;
+  diags_init = 1;
+}
+
+/*-------------------------------------------------------------------------
+  init_log_standalone_basic
+
+  This routine is similar to init_log_standalone, but it is intended for
+  simple standalone applications that do not read the records.config file
+  and that do not need a process manager, thus it:
+
+  1) does not call initialize_process_manager
+  2) initializes the diags with use_records = false
+  3) does not call Machine::init()
+  4) assumes multiple copies of the application can run, so does not
+     do lock checking
+  -------------------------------------------------------------------------*/
+
+void
+init_log_standalone_basic(const char *pgm_name)
+{
+  char logfile[LOG_FILENAME_SIZE];
+
+  snprintf(logfile, sizeof(logfile), "%s.log", pgm_name);
+  openlog(pgm_name, LOG_PID | LOG_NDELAY | LOG_NOWAIT, LOG_DAEMON);
+
+  init_system(false);
+  const bool use_records = false;
+  diagsConfig = new DiagsConfig(logfile, error_tags, action_tags, use_records);
+  diags = diagsConfig->diags;
+  // set stdin/stdout to be unbuffered
+  //
+  setbuf(stdin, NULL);
+  setbuf(stdout, NULL);
+
+  diags_init = 1;
+}
diff --git a/proxy/logging/LogUtils.cc b/proxy/logging/LogUtils.cc
new file mode 100644
index 00000000..8d422581
--- /dev/null
+++ b/proxy/logging/LogUtils.cc
@@ -0,0 +1,572 @@
+/** @file
+
+ This file contains a set of utility routines that are used throughout the
+ logging implementation.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include "ink_config.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <time.h>
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include "P_RecProcess.h"
+#define LOG_SignalManager             REC_SignalManager
+// REC_SIGNAL_LOGGING_ERROR    is defined in I_RecSignals.h
+// REC_SIGNAL_LOGGING_WARNING  is defined in I_RecSignals.h
+
+
+#include "Compatability.h"
+
+#include "LogUtils.h"
+#include "LogLimits.h"
+
+
+/*-------------------------------------------------------------------------
+  LogUtils::timestamp_to_str
+
+  This routine will convert a timestamp (seconds) into a short string,
+  of the format "%Y%m%d.%Hh%Mm%Ss".
+
+  Since the resulting buffer is passed in, this routine is thread-safe.
+  Return value is the number of characters placed into the array, not
+  including the NULL.
+  -------------------------------------------------------------------------*/
+
+int
+LogUtils::timestamp_to_str(long timestamp, char *buf, int size)
+{
+  static const char *format_str = "%Y%m%d.%Hh%Mm%Ss";
+  struct tm res;
+  struct tm *tms;
+  tms = ink_localtime_r((const time_t *) &timestamp, &res);
+  return strftime(buf, size, format_str, tms);
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::timestamp_to_netscape_str
+
+  This routine will convert a timestamp (seconds) into a string compatible
+  with the Netscape logging formats.
+
+  This routine is intended to be called from the (single) logging thread,
+  and is therefore NOT MULTITHREADED SAFE.  There is a single, static,
+  string buffer that the time string is constructed into and returned.
+  -------------------------------------------------------------------------*/
+
+char *
+LogUtils::timestamp_to_netscape_str(long timestamp)
+{
+  static char timebuf[64];      // NOTE: not MT safe
+  static char gmtstr[16];
+  static long last_timestamp = 0;
+  static char bad_time[] = "Bad timestamp";
+
+  // safety check
+  if (timestamp < 0) {
+    return bad_time;
+  }
+  //
+  // since we may have many entries per second, lets only do the
+  // formatting if we actually have a new timestamp.
+  //
+
+  if (timestamp != last_timestamp) {
+    //
+    // most of this garbage is simply to find out the offset from GMT,
+    // taking daylight savings into account.
+    //
+#ifdef NEED_ALTZONE_DEFINED
+    time_t altzone = timezone;
+#endif
+    struct tm res;
+    struct tm *tms = ink_localtime_r((const time_t *) &timestamp, &res);
+    // TODO: Not sure this makes sense, can altzone actually be != timezone ??
+#ifdef NEED_ALTZONE_DEFINED
+    long zone = (tms->tm_isdst > 0) ? altzone : timezone;
+#else
+    long zone = -tms->tm_gmtoff;        // double negative!
+#endif
+    int offset;
+    char sign;
+
+    if (zone >= 0) {
+      offset = zone / 60;
+      sign = '-';
+    } else {
+      offset = zone / -60;
+      sign = '+';
+    }
+    int glen = snprintf(gmtstr, 16, "%c%.2d%.2d", sign, offset / 60, offset % 60);
+
+    strftime(timebuf, 64 - glen, "%d/%b/%Y:%H:%M:%S ", tms);
+    ink_strlcat(timebuf, gmtstr, sizeof(timebuf));
+    last_timestamp = timestamp;
+  }
+  return timebuf;
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::timestamp_to_date_str
+
+  This routine will convert a timestamp (seconds) into a W3C compatible
+  date string.
+  -------------------------------------------------------------------------*/
+
+char *
+LogUtils::timestamp_to_date_str(long timestamp)
+{
+  static char timebuf[64];      // NOTE: not MT safe
+  static long last_timestamp = 0;
+  static char bad_time[] = "Bad timestamp";
+
+  // safety check
+  if (timestamp < 0) {
+    return bad_time;
+  }
+  //
+  // since we may have many entries per second, lets only do the
+  // formatting if we actually have a new timestamp.
+  //
+
+  if (timestamp != last_timestamp) {
+    struct tm res;
+    struct tm *tms = ink_localtime_r((const time_t *) &timestamp, &res);
+    strftime(timebuf, 64, "%Y-%m-%d", tms);
+    last_timestamp = timestamp;
+  }
+  return timebuf;
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::timestamp_to_time_str
+
+  This routine will convert a timestamp (seconds) into a W3C compatible
+  time string.
+  -------------------------------------------------------------------------*/
+
+char *
+LogUtils::timestamp_to_time_str(long timestamp)
+{
+  static char timebuf[64];      // NOTE: not MT safe
+  static long last_timestamp = 0;
+  static char bad_time[] = "Bad timestamp";
+
+  // safety check
+  if (timestamp < 0) {
+    return bad_time;
+  }
+  //
+  // since we may have many entries per second, lets only do the
+  // formatting if we actually have a new timestamp.
+  //
+
+  if (timestamp != last_timestamp) {
+    struct tm res;
+    struct tm *tms = ink_localtime_r((const time_t *) &timestamp, &res);
+    strftime(timebuf, 64, "%H:%M:%S", tms);
+    last_timestamp = timestamp;
+  }
+  return timebuf;
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::manager_alarm
+
+  This routine provides a convenient abstraction for sending the traffic
+  server manager process an alarm.  The logging system can send
+  LOG_ALARM_N_TYPES different types of alarms, as defined in LogUtils.h.
+  Subsequent alarms of the same type will override the previous alarm
+  entry.
+  -------------------------------------------------------------------------*/
+
+void
+LogUtils::manager_alarm(LogUtils::AlarmType alarm_type, const char *msg, ...)
+{
+  char msg_buf[LOG_MAX_FORMATTED_LINE];
+  va_list ap;
+
+  ink_assert(alarm_type >= 0 && alarm_type < LogUtils::LOG_ALARM_N_TYPES);
+
+  if (msg == NULL) {
+    snprintf(msg_buf, sizeof(msg_buf), "No Message");
+  } else {
+    va_start(ap, msg);
+    vsnprintf(msg_buf, LOG_MAX_FORMATTED_LINE, msg, ap);
+    va_end(ap);
+  }
+
+  switch (alarm_type) {
+  case LogUtils::LOG_ALARM_ERROR:
+    LOG_SignalManager(REC_SIGNAL_LOGGING_ERROR, msg_buf);
+    break;
+
+  case LogUtils::LOG_ALARM_WARNING:
+    LOG_SignalManager(REC_SIGNAL_LOGGING_WARNING, msg_buf);
+    break;
+
+  default:
+    ink_assert(false);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::strip_trailing_newline
+
+  This routine examines the given string buffer to see if the last
+  character before the trailing NULL is a newline ('\n').  If so, it will
+  be replaced with a NULL, thus stripping it and reducing the length of
+  the string by one.
+  -------------------------------------------------------------------------*/
+
+void
+LogUtils::strip_trailing_newline(char *buf)
+{
+  if (buf != NULL) {
+    int len =::strlen(buf);
+    if (len > 0) {
+      if (buf[len - 1] == '\n') {
+        buf[len - 1] = '\0';
+      }
+    }
+  }
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::escapify_url
+
+  This routine will escapify a URL to remove spaces (and perhaps other ugly
+  characters) from a URL and replace them with a hex escape sequence.
+  Since the escapes are larger (multi-byte) than the characters being
+  replaced, the string returned will be longer than the string passed.
+  -------------------------------------------------------------------------*/
+
+char *
+LogUtils::escapify_url(Arena *arena, char *url, size_t len_in, int *len_out, char *dst, size_t dst_size, const unsigned char *map)
+{
+  // codes_to_escape is a bitmap encoding the codes that should be escaped.
+  // These are all the codes defined in section 2.4.3 of RFC 2396
+  // (control, space, delims, and unwise) plus the tilde. In RFC 2396
+  // the tilde is an "unreserved" character, but we escape it because
+  // historically this is what the traffic_server has done.
+  // Note that we leave codes beyond 127 unmodified.
+  //
+  static const unsigned char codes_to_escape[32] = {
+    0xFF, 0xFF, 0xFF, 0xFF,     // control
+    0xB4,                       // space " # %
+    0x00, 0x00,                 //
+    0x0A,                       // < >
+    0x00, 0x00, 0x00,           //
+    0x1E, 0x80,                 // [ \ ] ^ `
+    0x00, 0x00,                 //
+    0x1F,                       // { | } ~ DEL
+    0x00, 0x00, 0x00, 0x00,     // all non-ascii characters unmodified
+    0x00, 0x00, 0x00, 0x00,     //               .
+    0x00, 0x00, 0x00, 0x00,     //               .
+    0x00, 0x00, 0x00, 0x00      //               .
+  };
+
+  static char hex_digit[16] = {
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C',
+    'D', 'E', 'F'
+  };
+
+  if (!url || (dst && dst_size < len_in)) {
+    *len_out = 0;
+    return NULL;
+  }
+
+  if (!map)
+    map = codes_to_escape;
+
+  // Count specials in the url, assuming that there won't be any.
+  //
+  int count = 0;
+  char *p = url;
+  char *in_url_end = url + len_in;
+
+  while (p < in_url_end) {
+    unsigned char c = *p;
+    if (map[c / 8] & (1 << (7 - c % 8))) {
+      ++count;
+    }
+    ++p;
+  }
+
+  if (!count) {
+    // The common case, no escapes, so just return the source string.
+    //
+    *len_out = len_in;
+    if (dst)
+      ink_strlcpy(dst, url, dst_size);
+    return url;
+  }
+
+  // For each special char found, we'll need an escape string, which is
+  // three characters long.  Count this and allocate the string required.
+  //
+  // make sure we take into account the characters we are substituting
+  // for when we calculate out_len !!! in other words,
+  // out_len = len_in + 3*count - count
+  //
+  size_t out_len = len_in + 2 * count;
+
+  if (dst && out_len > dst_size) {
+    *len_out = 0;
+    return NULL;
+  }
+
+  // To play it safe, we null terminate the string we return in case
+  // a module that expects null-terminated strings calls escapify_url,
+  // so we allocate an extra byte for the EOS
+  //
+  char *new_url;
+
+  if (dst)
+    new_url = dst;
+  else
+    new_url = (char *) arena->str_alloc(out_len + 1);
+
+  char *from = url;
+  char *to = new_url;
+
+  while (from < in_url_end) {
+    unsigned char c = *from;
+    if (map[c / 8] & (1 << (7 - c % 8))) {
+      *to++ = '%';
+      *to++ = hex_digit[c / 16];
+      *to++ = hex_digit[c % 16];
+    } else {
+      *to++ = *from;
+    }
+    from++;
+  }
+  *to = '\0';                      // null terminate string
+
+  *len_out = out_len;
+  return new_url;
+}
+
+/*-------------------------------------------------------------------------
+  LogUtils::remove_content_type_attributes
+
+  HTTP allows content types to have attributes following the main type and
+  subtype.  For example, attributes of text/html might be charset=iso-8859.
+  The content type attributes are not logged, so this function strips them
+  from the given buffer, if present.
+  -------------------------------------------------------------------------*/
+
+void
+LogUtils::remove_content_type_attributes(char *type_str, int *type_len)
+{
+  if (!type_str) {
+    *type_len = 0;
+    return;
+  }
+  // Look for a semicolon and cut out everything after that
+  //
+  char *p = (char *) memchr(type_str, ';', *type_len);
+  if (p) {
+    *type_len = p - type_str;
+  }
+}
+
+
+/*-------------------------------------------------------------------------
+  LogUtils::timestamp_to_hex_str
+
+  This routine simply writes the given timestamp integer [time_t] in the equivalent
+  hexadecimal string format "xxxxxxxxxx" into the provided buffer [buf] of
+  size [bufLen].
+
+  It returns 1 if the provided buffer is not big enough to hold the
+  equivalent ip string (and its null terminator), and 0 otherwise.
+  If the buffer is not big enough, only the ip "segments" that completely
+  fit into it are written, and the buffer is null terminated.
+  -------------------------------------------------------------------------*/
+
+int
+LogUtils::timestamp_to_hex_str(unsigned ip, char *buf, size_t bufLen, size_t * numCharsPtr)
+{
+  static const char *table = "0123456789abcdef@";
+  int retVal = 1;
+  int shift = 28;
+  if (buf && bufLen > 0) {
+    if (bufLen > 8)
+      bufLen = 8;
+    for (retVal = 0; retVal < (int) bufLen;) {
+      buf[retVal++] = (char) table[((ip >> shift) & 0xf)];
+      shift -= 4;
+    }
+
+    if (numCharsPtr) {
+      *numCharsPtr = (size_t) retVal;
+    }
+    retVal = (retVal == 8) ? 0 : 1;
+  }
+  return retVal;
+}
+
+/*
+int
+LogUtils::ip_to_str (unsigned ip, char *str, unsigned len)
+{
+    int ret = snprintf (str, len, "%u.%u.%u.%u",
+			    (ip >> 24) & 0xff,
+			    (ip >> 16) & 0xff,
+			    (ip >> 8)  & 0xff,
+			    ip         & 0xff);
+
+    return ((ret <= (int)len)? ret : (int)len);
+}
+*/
+
+// return the seconds remaining until the time of the next roll given
+// the current time, the rolling offset, and the rolling interval
+//
+int
+LogUtils::seconds_to_next_roll(time_t time_now, int rolling_offset, int rolling_interval)
+{
+  struct tm lt;
+  ink_localtime_r((const time_t *) &time_now, &lt);
+  int sidl = lt.tm_sec + lt.tm_min * 60 + lt.tm_hour * 3600;
+  int tr = rolling_offset * 3600;
+  return ((tr >= sidl ? (tr - sidl) % rolling_interval : (86400 - (sidl - tr)) % rolling_interval));
+}
+
+
+// Checks if the file pointed to by full_filename either is a regular
+// file or a pipe and has write permission, or, if the file does not
+// exist, if the path prefix of full_filename names a directory that
+// has both execute and write permissions, so there will be no problem
+// creating the file. If the size_bytes pointer is not NULL, it returns
+// the size of the file through it.
+// Also checks the current size limit for the file. If there is a
+// limit and has_size_limit is not null, *has_size_limit is set to
+// true. If there is no limit and has_size_limit is not null,
+// *has_size_limit is set to false.  If there is a limit and if the
+// current_size_limit_bytes pointer is not null, it returns the limit
+// through it.
+//
+// returns:
+//  0 on success
+// -1 on system error (no permission, etc.)
+//  1 if the file full_filename points to is neither a regular file
+//    nor a pipe
+//
+int
+LogUtils::file_is_writeable(const char *full_filename,
+                            off_t * size_bytes, bool * has_size_limit, uint64_t * current_size_limit_bytes)
+{
+  int ret_val = 0;
+  int e;
+  struct stat stat_data;
+
+  e = stat(full_filename, &stat_data);
+  if (e == 0) {
+    // stat succeeded, check if full_filename points to a regular
+    // file/fifo and if so, check if file has write permission
+    //
+    if (!(stat_data.st_mode & S_IFREG || stat_data.st_mode & S_IFIFO)) {
+      ret_val = 1;
+    } else if (!(stat_data.st_mode & S_IWUSR)) {
+      errno = EACCES;
+      ret_val = -1;
+    }
+    if (size_bytes)
+      *size_bytes = stat_data.st_size;
+  } else {
+    // stat failed
+    //
+    if (errno != ENOENT) {
+      // can't stat file
+      //
+      ret_val = -1;
+    } else {
+      // file does not exist, check that the prefix is a directory with
+      // write and execute permissions
+
+      char *dir;
+      char *prefix = 0;
+
+      // search for forward or reverse slash in full_filename
+      // starting from the end
+      //
+      const char *slash = strrchr(full_filename, '/');
+      if (slash) {
+        size_t prefix_len = slash - full_filename + 1;
+        prefix = new char[prefix_len + 1];
+        memcpy(prefix, full_filename, prefix_len);
+        prefix[prefix_len] = 0;
+        dir = prefix;
+      } else {
+        dir = (char *) ".";     // full_filename has no prefix, use .
+      }
+
+      // check if directory is executable and writeable
+      //
+      e = access(dir, X_OK | W_OK);
+      if (e < 0) {
+        ret_val = -1;
+      } else {
+        if (size_bytes)
+          *size_bytes = 0;
+      }
+
+      if (prefix) {
+        delete[]prefix;
+      }
+    }
+  }
+
+  // check for the current filesize limit
+  //
+  if (ret_val == 0) {
+    struct rlimit limit_data;
+    e = getrlimit(RLIMIT_FSIZE, &limit_data);
+    if (e < 0) {
+      ret_val = -1;
+    } else {
+      if (limit_data.rlim_cur != (rlim_t)RLIM_INFINITY) {
+        if (has_size_limit)
+          *has_size_limit = true;
+        if (current_size_limit_bytes)
+          *current_size_limit_bytes = limit_data.rlim_cur;
+      } else {
+        if (has_size_limit)
+          *has_size_limit = false;
+      }
+    }
+  }
+
+  return ret_val;
+}
diff --git a/proxy/logging/LogUtils.h b/proxy/logging/LogUtils.h
new file mode 100644
index 00000000..090b239e
--- /dev/null
+++ b/proxy/logging/LogUtils.h
@@ -0,0 +1,59 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#ifndef LOG_UTILS_H
+#define LOG_UTILS_H
+
+#include "time.h"
+
+#include "libts.h"
+#include "Arena.h"
+
+namespace LogUtils
+{
+  enum AlarmType
+  {
+    LOG_ALARM_ERROR = 0,
+    LOG_ALARM_WARNING,
+    LOG_ALARM_N_TYPES
+  };
+
+  static inline long timestamp() { return (long)time(0); }
+
+  int timestamp_to_str(long timestamp, char *buf, int size);
+  char *timestamp_to_netscape_str(long timestamp);
+  char *timestamp_to_date_str(long timestamp);
+  char *timestamp_to_time_str(long timestamp);
+  unsigned ip_from_host(char *host);
+  void manager_alarm(AlarmType alarm_type, const char *msg, ...) TS_PRINTFLIKE(2, 3);
+  void strip_trailing_newline(char *buf);
+  char *escapify_url(Arena * arena, char *url, size_t len_in, int *len_out, char *dst=NULL, size_t dst_size=0, const unsigned char *map=NULL);
+  char *int64_to_str(char *buf, unsigned int buf_size, int64_t val, unsigned int *total_chars, unsigned int req_width=0, char pad_char='0');
+  void remove_content_type_attributes(char *type_str, int *type_len);
+  int timestamp_to_hex_str(unsigned timestamp, char *str, size_t len, size_t * n_chars = 0);
+  int seconds_to_next_roll(time_t time_now, int rolling_offset, int rolling_interval);
+  int file_is_writeable(const char *full_filename,
+                               off_t * size_bytes = 0,
+                               bool * has_size_limit = 0, uint64_t * current_size_limit_bytes = 0);
+
+};
+#endif
diff --git a/proxy/logging/Makefile.am b/proxy/logging/Makefile.am
new file mode 100644
index 00000000..df61ffcc
--- /dev/null
+++ b/proxy/logging/Makefile.am
@@ -0,0 +1,85 @@
+# Makefile.am for Logging
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/http/remap \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+EXTRA_DIST = LogStandalone.cc
+
+noinst_LIBRARIES = liblogging.a liblogcollation.a
+
+liblogging_a_SOURCES = \
+  Log.cc \
+  Log.h \
+  LogAccess.cc \
+  LogAccess.h \
+  LogAccessHttp.cc \
+  LogAccessHttp.h \
+  LogAccessICP.cc \
+  LogAccessICP.h \
+  LogBuffer.cc \
+  LogBuffer.h \
+  LogBufferSink.h \
+  LogConfig.cc \
+  LogConfig.h \
+  LogField.cc \
+  LogField.h \
+  LogFieldAliasMap.cc \
+  LogFieldAliasMap.h \
+  LogFile.cc \
+  LogFile.h \
+  LogFilter.cc \
+  LogFilter.h \
+  LogFormat.cc \
+  LogFormat.h \
+  LogHost.cc \
+  LogHost.h \
+  LogLimits.h \
+  LogObject.cc \
+  LogObject.h \
+  LogPredefined.cc \
+  LogPredefined.h \
+  LogSock.cc \
+  LogSock.h \
+  LogUtils.cc \
+  LogUtils.h
+
+liblogcollation_a_SOURCES = \
+  LogCollationAccept.cc \
+  LogCollationAccept.h \
+  LogCollationBase.h \
+  LogCollationClientSM.cc \
+  LogCollationClientSM.h \
+  LogCollationHostSM.cc \
+  LogCollationHostSM.h
+
+#test_UNUSED_SOURCES = \
+#  LogAccessTest.cc \
+#  LogAccessTest.h
diff --git a/proxy/logging/Makefile.in b/proxy/logging/Makefile.in
new file mode 100644
index 00000000..45c6a75c
--- /dev/null
+++ b/proxy/logging/Makefile.in
@@ -0,0 +1,954 @@
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+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/http/remap \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils
+
+EXTRA_DIST = LogStandalone.cc
+noinst_LIBRARIES = liblogging.a liblogcollation.a
+liblogging_a_SOURCES = \
+  Log.cc \
+  Log.h \
+  LogAccess.cc \
+  LogAccess.h \
+  LogAccessHttp.cc \
+  LogAccessHttp.h \
+  LogAccessICP.cc \
+  LogAccessICP.h \
+  LogBuffer.cc \
+  LogBuffer.h \
+  LogBufferSink.h \
+  LogConfig.cc \
+  LogConfig.h \
+  LogField.cc \
+  LogField.h \
+  LogFieldAliasMap.cc \
+  LogFieldAliasMap.h \
+  LogFile.cc \
+  LogFile.h \
+  LogFilter.cc \
+  LogFilter.h \
+  LogFormat.cc \
+  LogFormat.h \
+  LogHost.cc \
+  LogHost.h \
+  LogLimits.h \
+  LogObject.cc \
+  LogObject.h \
+  LogPredefined.cc \
+  LogPredefined.h \
+  LogSock.cc \
+  LogSock.h \
+  LogUtils.cc \
+  LogUtils.h
+
+liblogcollation_a_SOURCES = \
+  LogCollationAccept.cc \
+  LogCollationAccept.h \
+  LogCollationBase.h \
+  LogCollationClientSM.cc \
+  LogCollationClientSM.h \
+  LogCollationHostSM.cc \
+  LogCollationHostSM.h
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign proxy/logging/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign proxy/logging/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+liblogcollation.a: $(liblogcollation_a_OBJECTS) $(liblogcollation_a_DEPENDENCIES) $(EXTRA_liblogcollation_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f liblogcollation.a
+	$(AM_V_AR)$(liblogcollation_a_AR) liblogcollation.a $(liblogcollation_a_OBJECTS) $(liblogcollation_a_LIBADD)
+	$(AM_V_at)$(RANLIB) liblogcollation.a
+
+liblogging.a: $(liblogging_a_OBJECTS) $(liblogging_a_DEPENDENCIES) $(EXTRA_liblogging_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f liblogging.a
+	$(AM_V_AR)$(liblogging_a_AR) liblogging.a $(liblogging_a_OBJECTS) $(liblogging_a_LIBADD)
+	$(AM_V_at)$(RANLIB) liblogging.a
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Log.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogAccess.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogAccessHttp.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogAccessICP.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogBuffer.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogCollationAccept.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogCollationClientSM.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogCollationHostSM.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogConfig.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogField.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogFieldAliasMap.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogFile.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogFilter.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogFormat.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogHost.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogObject.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogPredefined.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogSock.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/LogUtils.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
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+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
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+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
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+info: info-am
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+install-ps-am:
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+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
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+	mostlyclean-libtool
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+uninstall-am:
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+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+#test_UNUSED_SOURCES = \
+#  LogAccessTest.cc \
+#  LogAccessTest.h
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/logstats.cc b/proxy/logstats.cc
new file mode 100644
index 00000000..831d14a2
--- /dev/null
+++ b/proxy/logstats.cc
@@ -0,0 +1,2584 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#undef std  // FIXME: remove dependency on the STL
+#include "ink_config.h"
+#include "ink_file.h"
+#include "I_Layout.h"
+#include "I_Version.h"
+
+// Includes and namespaces etc.
+#include "LogStandalone.cc"
+
+#include "LogObject.h"
+#include "hdrs/HTTP.h"
+
+#include <math.h>
+#include <sys/utsname.h>
+#if defined(solaris)
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <iomanip>
+#include <string>
+#include <algorithm>
+#include <vector>
+#include <list>
+#include <functional>
+#include <fcntl.h>
+
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 600
+#endif
+
+using namespace std;
+
+// Constants, please update the VERSION number when you make a new build!!!
+#define PROGRAM_NAME		"traffic_logstats"
+
+const int MAX_LOGBUFFER_SIZE = 65536;
+const int DEFAULT_LINE_LEN = 78;
+const double LOG10_1024 = 3.0102999566398116;
+const int MAX_ORIG_STRING = 4096;
+
+
+// Optimizations for "strcmp()", treat some fixed length (3 or 4 bytes) strings
+// as integers.
+const int GET_AS_INT = 5522759;
+const int PUT_AS_INT = 5526864;
+const int HEAD_AS_INT = 1145128264;
+const int POST_AS_INT = 1414745936;
+
+const int TEXT_AS_INT = 1954047348;
+
+const int JPEG_AS_INT = 1734701162;
+const int JPG_AS_INT = 6778986;
+const int GIF_AS_INT = 6711655;
+const int PNG_AS_INT = 6778480;
+const int BMP_AS_INT = 7368034;
+const int CSS_AS_INT = 7566179;
+const int XML_AS_INT = 7105912;
+const int HTML_AS_INT = 1819112552;
+const int ZIP_AS_INT = 7367034;
+
+const int JAVA_AS_INT = 1635148138;     // For "javascript"
+const int X_JA_AS_INT = 1634348408;     // For "x-javascript"
+const int RSSp_AS_INT = 728986482;      // For "RSS+"
+const int PLAI_AS_INT = 1767992432;     // For "plain"
+const int IMAG_AS_INT = 1734438249;     // For "image"
+const int HTTP_AS_INT = 1886680168;     // For "http" followed by "s://" or "://"
+
+// Store our "state" (position in log file etc.)
+struct LastState
+{
+  off_t offset;
+  ino_t st_ino;
+};
+static LastState last_state;
+
+
+// Store the collected counters and stats, per Origin Server, URL or total
+struct StatsCounter
+{
+  int64_t count;
+  int64_t bytes;
+};
+
+struct ElapsedStats
+{
+  int min;
+  int max;
+  float avg;
+  float stddev;
+};
+
+struct OriginStats
+{
+  const char *server;
+  StatsCounter total;
+
+  struct
+  {
+    struct
+    {
+      ElapsedStats hit;
+      ElapsedStats ims;
+      ElapsedStats refresh;
+      ElapsedStats other;
+      ElapsedStats total;
+    } hits;
+    struct
+    {
+      ElapsedStats miss;
+      ElapsedStats ims;
+      ElapsedStats refresh;
+      ElapsedStats other;
+      ElapsedStats total;
+    } misses;
+  } elapsed;
+
+  struct
+  {
+    struct
+    {
+      StatsCounter hit;
+      StatsCounter ims;
+      StatsCounter refresh;
+      StatsCounter other;
+      StatsCounter total;
+    } hits;
+    struct
+    {
+      StatsCounter miss;
+      StatsCounter ims;
+      StatsCounter refresh;
+      StatsCounter other;
+      StatsCounter total;
+    } misses;
+    struct
+    {
+      StatsCounter client_abort;
+      StatsCounter connect_fail;
+      StatsCounter invalid_req;
+      StatsCounter unknown;
+      StatsCounter other;
+      StatsCounter total;
+    } errors;
+    StatsCounter other;
+  } results;
+
+  struct
+  {
+    StatsCounter c_000;         // Bad
+    StatsCounter c_100;
+    StatsCounter c_200;
+    StatsCounter c_201;
+    StatsCounter c_202;
+    StatsCounter c_203;
+    StatsCounter c_204;
+    StatsCounter c_205;
+    StatsCounter c_206;
+    StatsCounter c_2xx;
+    StatsCounter c_300;
+    StatsCounter c_301;
+    StatsCounter c_302;
+    StatsCounter c_303;
+    StatsCounter c_304;
+    StatsCounter c_305;
+    StatsCounter c_307;
+    StatsCounter c_3xx;
+    StatsCounter c_400;
+    StatsCounter c_401;
+    StatsCounter c_402;
+    StatsCounter c_403;
+    StatsCounter c_404;
+    StatsCounter c_405;
+    StatsCounter c_406;
+    StatsCounter c_407;
+    StatsCounter c_408;
+    StatsCounter c_409;
+    StatsCounter c_410;
+    StatsCounter c_411;
+    StatsCounter c_412;
+    StatsCounter c_413;
+    StatsCounter c_414;
+    StatsCounter c_415;
+    StatsCounter c_416;
+    StatsCounter c_417;
+    StatsCounter c_4xx;
+    StatsCounter c_500;
+    StatsCounter c_501;
+    StatsCounter c_502;
+    StatsCounter c_503;
+    StatsCounter c_504;
+    StatsCounter c_505;
+    StatsCounter c_5xx;
+  } codes;
+
+  struct
+  {
+    StatsCounter direct;
+    StatsCounter none;
+    StatsCounter sibling;
+    StatsCounter parent;
+    StatsCounter empty;
+    StatsCounter invalid;
+    StatsCounter other;
+  } hierarchies;
+
+  struct
+  {
+    StatsCounter http;
+    StatsCounter https;
+    StatsCounter none;
+    StatsCounter other;
+  } schemes;
+
+  struct
+  {
+    StatsCounter options;
+    StatsCounter get;
+    StatsCounter head;
+    StatsCounter post;
+    StatsCounter put;
+    StatsCounter del;
+    StatsCounter trace;
+    StatsCounter connect;
+    StatsCounter purge;
+    StatsCounter none;
+    StatsCounter other;
+  } methods;
+
+  struct
+  {
+    struct
+    {
+      StatsCounter plain;
+      StatsCounter xml;
+      StatsCounter html;
+      StatsCounter css;
+      StatsCounter javascript;
+      StatsCounter other;
+      StatsCounter total;
+    } text;
+    struct
+    {
+      StatsCounter jpeg;
+      StatsCounter gif;
+      StatsCounter png;
+      StatsCounter bmp;
+      StatsCounter other;
+      StatsCounter total;
+    } image;
+    struct
+    {
+      StatsCounter shockwave_flash;
+      StatsCounter quicktime;
+      StatsCounter javascript;
+      StatsCounter zip;
+      StatsCounter other;
+      StatsCounter rss_xml;
+      StatsCounter rss_atom;
+      StatsCounter rss_other;
+      StatsCounter total;
+    } application;
+    struct
+    {
+      StatsCounter wav;
+      StatsCounter mpeg;
+      StatsCounter other;
+      StatsCounter total;
+    } audio;
+    StatsCounter none;
+    StatsCounter other;
+  } content;
+};
+
+struct UrlStats
+{
+  bool operator < (const UrlStats& rhs) const  { return req.count > rhs.req.count;  } // Reverse order
+
+  const char *url;
+  StatsCounter req;
+  ElapsedStats time;
+  int64_t c_000; 
+  int64_t c_2xx;
+  int64_t c_3xx;
+  int64_t c_4xx;
+  int64_t c_5xx;
+  int64_t hits;
+  int64_t misses;
+  int64_t errors;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// Equal operator for char* (for the hash_map)
+struct eqstr
+{
+  inline bool operator() (const char *s1, const char *s2) const
+  {
+    return 0 == strcmp(s1, s2);
+  }
+};
+
+struct hash_fnv32 {
+  inline uint32_t operator()(const char* s) const
+  {
+    uint32_t hval = (uint32_t)0x811c9dc5; /* FNV1_32_INIT */
+
+    if (s) {
+      while (*s) {
+        hval ^= (uint32_t)*s++;
+        hval *= (uint32_t)0x01000193;  /* FNV_32_PRIME */
+      }
+    }
+
+    return hval;
+  }
+};
+
+typedef std::list<UrlStats> LruStack;
+
+#if HAVE_CXX_11 && HAVE_UNORDERED_MAP && HAVE_UNORDERED_SET
+#include <unordered_map>
+#include <unordered_set>
+typedef std::unordered_map<const char *, OriginStats *, hash_fnv32, eqstr> OriginStorage;
+typedef std::unordered_set<const char *, hash_fnv32, eqstr> OriginSet;
+typedef std::unordered_map<const char *, LruStack::iterator, hash_fnv32, eqstr> LruHash;
+
+// Resize a hash-based container.
+template <class T, class N>
+void
+rehash(T& container, N size) {
+  container.rehash(size);
+}
+
+#elif HAVE_GNU_CXX_HASH_MAP
+#define _BACKWARD_BACKWARD_WARNING_H    // needed for gcc 4.3
+#include <ext/hash_map>
+#include <ext/hash_set>
+typedef __gnu_cxx::hash_map<const char *, OriginStats *, hash_fnv32, eqstr> OriginStorage;
+typedef __gnu_cxx::hash_set<const char *, hash_fnv32, eqstr> OriginSet;
+typedef __gnu_cxx::hash_map<const char *, LruStack::iterator, hash_fnv32, eqstr> LruHash;
+
+// Resize a hash-based container.
+template <class T, class N>
+void
+rehash(T& container, N size) {
+  container.resize(size);
+}
+
+#undef _BACKWARD_BACKWARD_WARNING_H
+#else
+#error no supported hash container
+#endif
+
+// LRU class for the URL data
+void  update_elapsed(ElapsedStats &stat, const int elapsed, const StatsCounter &counter);
+
+class UrlLru
+{
+
+public:
+  UrlLru(int size=1000000, int show_urls=0)
+    : _size(size)
+  {
+    _show_urls = size > 0 ? (show_urls >= size ? size-1 : show_urls) : show_urls;
+    _init();
+    _reset(false);
+    _cur = _stack.begin();
+  }
+
+  void
+  resize(int size=0)
+  {
+    if (0 != size)
+      _size = size;
+
+    _init();
+    _reset(true);
+    _cur = _stack.begin();
+  }
+
+  void
+  dump(int as_object=0)
+  {
+    int show = _stack.size();
+
+    if (_show_urls > 0 && _show_urls < show)
+      show = _show_urls;
+
+    _stack.sort();
+    for (LruStack::iterator u=_stack.begin(); NULL != u->url && --show >= 0; ++u)
+      _dump_url(u, as_object);
+    if (as_object)
+      std::cout << "  \"_timestamp\" : \"" << static_cast<int>(ink_time_wall_seconds()) << "\"" << std::endl;
+    else 
+      std::cout << "  { \"_timestamp\" : \"" << static_cast<int>(ink_time_wall_seconds()) << "\" }" << std::endl;
+  }
+
+  void
+  add_stat(const char* url, int64_t bytes, int time, int result, int http_code, int as_object=0)
+  {
+    LruHash::iterator h = _hash.find(url);
+
+    if (h != _hash.end()) {
+      LruStack::iterator &l = h->second;
+
+      ++(l->req.count);
+      l->req.bytes += bytes;
+
+      if ((http_code >= 600) || (http_code < 200))
+        ++(l->c_000);
+      else if (http_code >= 500)
+        ++(l->c_5xx);
+      else if (http_code >= 400)
+        ++(l->c_4xx);
+      else if (http_code >= 300)
+        ++(l->c_3xx);
+      else // http_code >= 200
+        ++(l->c_2xx);
+
+      switch (result) {
+      case SQUID_LOG_TCP_HIT:
+      case SQUID_LOG_TCP_IMS_HIT:
+      case SQUID_LOG_TCP_REFRESH_HIT:
+      case SQUID_LOG_TCP_DISK_HIT:
+      case SQUID_LOG_TCP_MEM_HIT:
+      case SQUID_LOG_TCP_REF_FAIL_HIT:
+      case SQUID_LOG_UDP_HIT:
+      case SQUID_LOG_UDP_WEAK_HIT:
+      case SQUID_LOG_UDP_HIT_OBJ:
+        ++(l->hits);
+        break;
+      case SQUID_LOG_TCP_MISS:
+      case SQUID_LOG_TCP_IMS_MISS:
+      case SQUID_LOG_TCP_REFRESH_MISS:
+      case SQUID_LOG_TCP_EXPIRED_MISS:
+      case SQUID_LOG_TCP_WEBFETCH_MISS:
+      case SQUID_LOG_UDP_MISS:
+        ++(l->misses);
+        break;
+      case SQUID_LOG_ERR_CLIENT_ABORT:
+      case SQUID_LOG_ERR_CONNECT_FAIL:
+      case SQUID_LOG_ERR_INVALID_REQ:
+      case SQUID_LOG_ERR_UNKNOWN:
+      case SQUID_LOG_ERR_READ_TIMEOUT:
+        ++(l->errors);
+        break;
+      }
+
+      update_elapsed(l->time, time, l->req);
+      // Move this entry to the top of the stack (hence, LRU)
+      if (_size > 0)
+        _stack.splice(_stack.begin(), _stack, l);
+    } else { // "new" URL
+      const char *u = ats_strdup(url); // We own it.
+      LruStack::iterator l = _stack.end();
+
+      if (_size > 0) {
+        if (_cur == l) { // LRU is full, take the last one
+          --l;
+          h = _hash.find(l->url);
+          if (h != _hash.end())
+            _hash.erase(h);
+          if (0 == _show_urls)
+            _dump_url(l, as_object);
+        } else {
+          l = _cur++;
+        }
+        ats_free(const_cast<char*>(l->url)); // We no longer own this string.
+      } else {
+        l = _stack.insert(l, UrlStats()); // This seems faster than having a static "template" ...
+      }
+
+      // Setup this URL stat
+      l->url = u;
+      l->req.bytes = bytes;
+      l->req.count = 1;
+
+      if ((http_code >= 600) || (http_code < 200))
+        l->c_000 = 1;
+      else if (http_code >= 500)
+        l->c_5xx = 1;
+      else if (http_code >= 400)
+        l->c_4xx = 1;
+      else if (http_code >= 300)
+        l->c_3xx = 1;
+      else // http_code >= 200
+        l->c_2xx = 1;
+
+      switch (result) {
+      case SQUID_LOG_TCP_HIT:
+      case SQUID_LOG_TCP_IMS_HIT:
+      case SQUID_LOG_TCP_REFRESH_HIT:
+      case SQUID_LOG_TCP_DISK_HIT:
+      case SQUID_LOG_TCP_MEM_HIT:
+      case SQUID_LOG_TCP_REF_FAIL_HIT:
+      case SQUID_LOG_UDP_HIT:
+      case SQUID_LOG_UDP_WEAK_HIT:
+      case SQUID_LOG_UDP_HIT_OBJ:
+        l->hits = 1;
+        break;
+      case SQUID_LOG_TCP_MISS:
+      case SQUID_LOG_TCP_IMS_MISS:
+      case SQUID_LOG_TCP_REFRESH_MISS:
+      case SQUID_LOG_TCP_EXPIRED_MISS:
+      case SQUID_LOG_TCP_WEBFETCH_MISS:
+      case SQUID_LOG_UDP_MISS:
+        l->misses = 1;
+        break;
+      case SQUID_LOG_ERR_CLIENT_ABORT:
+      case SQUID_LOG_ERR_CONNECT_FAIL:
+      case SQUID_LOG_ERR_INVALID_REQ:
+      case SQUID_LOG_ERR_UNKNOWN:
+      case SQUID_LOG_ERR_READ_TIMEOUT:
+        l->errors = 1;
+        break;
+      }
+
+      l->time.min = -1;
+      l->time.max = -1;
+      update_elapsed(l->time, time, l->req);
+      _hash[u] = l;
+
+      // We running a real LRU or not?
+      if (_size > 0)
+        _stack.splice(_stack.begin(), _stack, l); // Move this to the top of the stack
+    }
+  }
+
+private:
+  void
+  _init()
+  {
+    if (_size > 0) {
+      _stack.resize(_size);
+      rehash(_hash, _size);
+    }
+  }
+
+  void
+  _reset(bool free=false)
+  {
+    for (LruStack::iterator l=_stack.begin(); l != _stack.end(); ++l) {
+      if (free && l->url)
+        ats_free(const_cast<char*>(l->url));
+      memset(&(*l), 0, sizeof(UrlStats));
+    }
+  }
+
+  void
+  _dump_url(LruStack::iterator &u, int as_object)
+  {
+    if (as_object)
+      std::cout << "  \"" << u->url << "\" : { ";
+    else
+      std::cout << "  { \"" << u->url << "\" : { ";
+    // Requests
+    std::cout << "\"req\" : { \"total\" : \"" << u->req.count <<
+      "\", \"hits\" : \"" <<  u->hits << 
+      "\", \"misses\" : \"" <<  u->misses << 
+      "\", \"errors\" : \"" <<  u->errors <<
+      "\", \"000\" : \"" <<  u->c_000 <<
+      "\", \"2xx\" : \"" <<  u->c_2xx <<
+      "\", \"3xx\" : \"" <<  u->c_3xx <<
+      "\", \"4xx\" : \"" <<  u->c_4xx <<
+      "\", \"5xx\" : \"" <<  u->c_5xx << "\" }, ";
+    std:: cout << "\"bytes\" : \"" << u->req.bytes << "\", ";
+    // Service times
+    std::cout << "\"svc_t\" : { \"min\" : \"" << u->time.min <<
+      "\", \"max\" : \"" << u->time.max <<
+      "\", \"avg\" : \"" << std::setiosflags(ios::fixed) << std::setprecision(2) << u->time.avg <<
+      "\", \"dev\" : \"" << std::setiosflags(ios::fixed) << std::setprecision(2) << u->time.stddev;
+
+    if (as_object)
+      std::cout << "\" } }," << std::endl;
+    else
+      std::cout << "\" } } }," << std::endl;
+  }
+
+  LruHash _hash;
+  LruStack _stack;
+  int _size, _show_urls;
+  LruStack::iterator _cur;
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Globals, holding the accumulated stats (ok, I'm lazy ...)
+static OriginStats totals;
+static OriginStorage origins;
+static OriginSet *origin_set;
+static UrlLru *urls;
+static int parse_errors;
+
+// Command line arguments (parsing)
+struct CommandLineArgs
+{
+  char log_file[1024];
+  char origin_file[1024];
+  char origin_list[MAX_ORIG_STRING];
+  int max_origins;
+  char state_tag[1024];
+  int64_t min_hits;
+  int max_age;
+  int line_len;
+  int incremental;              // Do an incremental run
+  int tail;                     // Tail the log file
+  int summary;                  // Summary only
+  int json;			// JSON output
+  int cgi;			// CGI output (typically with json)
+  int urls;			// Produce JSON output of URL stats, arg is LRU size
+  int show_urls;		// Max URLs to show
+  int as_object;		// Show the URL stats as a single JSON object (not array)
+  int version;
+  int help;
+
+  CommandLineArgs()
+    : max_origins(0), min_hits(0), max_age(0), line_len(DEFAULT_LINE_LEN), incremental(0),
+      tail(0), summary(0), json(0), cgi(0), urls(0), show_urls(0), as_object(0), version(0), help(0)
+  {
+    log_file[0] = '\0';
+    origin_file[0] = '\0';
+    origin_list[0] = '\0';
+    state_tag[0] = '\0';
+  }
+
+  void parse_arguments(char** argv);
+};
+
+static CommandLineArgs cl;
+
+static ArgumentDescription argument_descriptions[] = {
+  {"help", 'h', "Give this help", "T", &cl.help, NULL, NULL},
+  {"log_file", 'f', "Specific logfile to parse", "S1023", cl.log_file, NULL, NULL},
+  {"origin_list", 'o', "Only show stats for listed Origins", "S4095", cl.origin_list, NULL, NULL},
+  {"origin_file", 'O', "File listing Origins to show", "S1023", cl.origin_file, NULL, NULL},
+  {"max_orgins", 'M', "Max number of Origins to show", "I", &cl.max_origins, NULL, NULL},
+  {"urls", 'u', "Produce JSON stats for URLs, argument is LRU size", "I", &cl.urls, NULL, NULL},
+  {"show_urls", 'U', "Only show max this number of URLs", "I", &cl.show_urls, NULL, NULL},
+  {"as_object", 'A', "Produce URL stats as a JSON object instead of array", "T", &cl.as_object, NULL, NULL},
+  {"incremental", 'i', "Incremental log parsing", "T", &cl.incremental, NULL, NULL},
+  {"statetag", 'S', "Name of the state file to use", "S1023", cl.state_tag, NULL, NULL},
+  {"tail", 't', "Parse the last <sec> seconds of log", "I", &cl.tail, NULL, NULL},
+  {"summary", 's', "Only produce the summary", "T", &cl.summary, NULL, NULL},
+  {"json", 'j', "Produce JSON formatted output", "T", &cl.json, NULL, NULL},
+  {"cgi", 'c', "Produce HTTP headers suitable as a CGI", "T", &cl.cgi, NULL, NULL},
+  {"min_hits", 'm', "Minimum total hits for an Origin", "L", &cl.min_hits, NULL, NULL},
+  {"max_age", 'a', "Max age for log entries to be considered", "I", &cl.max_age, NULL, NULL},
+  {"line_len", 'l', "Output line length", "I", &cl.line_len, NULL, NULL},
+  {"debug_tags", 'T', "Colon-Separated Debug Tags", "S1023", &error_tags, NULL, NULL},
+  {"version", 'V', "Print Version Id", "T", &cl.version, NULL, NULL},
+};
+
+static const char *USAGE_LINE =
+  "Usage: " PROGRAM_NAME " [-f logfile] [-o origin[,...]] [-O originfile] [-m minhits] [-inshv]";
+
+void
+CommandLineArgs::parse_arguments(char** argv)
+{
+  // process command-line arguments
+  process_args(argument_descriptions, countof(argument_descriptions), argv, USAGE_LINE);
+
+  // Process as "CGI" ?
+  if (strstr(argv[0], ".cgi") || cgi) {
+    char *query;
+
+    json = 1;
+    cgi = 1;
+
+    if (NULL != (query = getenv("QUERY_STRING"))) {
+      char buffer[MAX_ORIG_STRING];
+      char *tok, *sep_ptr, *val;
+
+      ink_strlcpy(buffer, query, sizeof(buffer));
+      unescapifyStr(buffer);
+
+      for (tok = strtok_r(buffer, "&", &sep_ptr); tok != NULL;) {
+        val = strchr(tok, '=');
+        if (val)
+          *(val++) = '\0';
+        if (0 == strncmp(tok, "origin_list", 11)) {
+          ink_strlcpy(origin_list, val, sizeof(origin_list));
+        } else if (0 == strncmp(tok, "state_tag", 9)) {
+          ink_strlcpy(state_tag, val, sizeof(state_tag));
+        } else if (0 == strncmp(tok, "max_origins", 11)) {
+          max_origins = strtol(val, NULL, 10);
+        } else if (0 == strncmp(tok, "urls", 4)) {
+          urls = strtol(val, NULL, 10);
+        } else if (0 == strncmp(tok, "show_urls", 9)) {
+          show_urls = strtol(val, NULL, 10);
+        } else if (0 == strncmp(tok, "as_object", 9)) {
+          as_object = strtol(val, NULL, 10);
+        } else if (0 == strncmp(tok, "min_hits", 8)) {
+          min_hits = strtol(val, NULL, 10);
+        } else if (0 == strncmp(tok, "incremental", 11)) {
+          incremental = strtol(val, NULL, 10);
+        } else {
+          // Unknown query arg.
+        }
+
+        tok = strtok_r(NULL, "&", &sep_ptr);
+      }
+    }
+  }
+
+  // check for the version number request
+  if (version) {
+    std::cerr << appVersionInfo.FullVersionInfoStr << std::endl;
+    _exit(0);
+  }
+
+  // check for help request
+  if (help) {
+    usage(argument_descriptions, countof(argument_descriptions), USAGE_LINE);
+    _exit(0);
+  }
+}
+
+
+// Enum for return code levels.
+enum ExitLevel
+{
+  EXIT_OK = 0,
+  EXIT_WARNING = 1,
+  EXIT_CRITICAL = 2,
+  EXIT_UNKNOWN = 3
+};
+
+struct ExitStatus
+{
+  ExitLevel level;
+  char notice[1024];
+
+  ExitStatus()
+    : level(EXIT_OK)
+  {
+    memset(notice, 0, sizeof(notice));
+  }
+
+  void set(ExitLevel l, const char* n=NULL) {
+    if (l > level)
+      level = l;
+    if (n)
+      ink_strlcat(notice, n, sizeof(notice));
+  }
+
+  void append(const char *n) {
+    ink_strlcat(notice, n, sizeof(notice));
+  }
+
+  void append(const std::string s) {
+    ink_strlcat(notice, s.c_str(), sizeof(notice));
+  }
+};
+
+
+// Enum for parsing a log line
+enum ParseStates
+{
+  P_STATE_ELAPSED,
+  P_STATE_IP,
+  P_STATE_RESULT,
+  P_STATE_CODE,
+  P_STATE_SIZE,
+  P_STATE_METHOD,
+  P_STATE_URL,
+  P_STATE_RFC931,
+  P_STATE_HIERARCHY,
+  P_STATE_PEER,
+  P_STATE_TYPE,
+  P_STATE_END
+};
+
+// Enum for HTTP methods
+enum HTTPMethod
+{
+  METHOD_OPTIONS,
+  METHOD_GET,
+  METHOD_HEAD,
+  METHOD_POST,
+  METHOD_PUT,
+  METHOD_DELETE,
+  METHOD_TRACE,
+  METHOD_CONNECT,
+  METHOD_PURGE,
+  METHOD_NONE,
+  METHOD_OTHER
+};
+
+// Enum for URL schemes
+enum URLScheme
+{
+  SCHEME_HTTP,
+  SCHEME_HTTPS,
+  SCHEME_NONE,
+  SCHEME_OTHER
+};
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Initialize the elapsed field
+inline void
+init_elapsed(OriginStats *stats)
+{
+  stats->elapsed.hits.hit.min = -1;
+  stats->elapsed.hits.ims.min = -1;
+  stats->elapsed.hits.refresh.min = -1;
+  stats->elapsed.hits.other.min = -1;
+  stats->elapsed.hits.total.min = -1;
+  stats->elapsed.misses.miss.min = -1;
+  stats->elapsed.misses.ims.min = -1;
+  stats->elapsed.misses.refresh.min = -1;
+  stats->elapsed.misses.other.min = -1;
+  stats->elapsed.misses.total.min = -1;
+}
+
+// Update the counters for one StatsCounter
+inline void
+update_counter(StatsCounter& counter, int size)
+{
+  counter.count++;
+  counter.bytes += size;
+}
+
+inline void
+update_elapsed(ElapsedStats &stat, const int elapsed, const StatsCounter &counter)
+{
+  int newcount, oldcount;
+  float oldavg, newavg, sum_of_squares;
+
+  // Skip all the "0" values.
+  if (0 == elapsed)
+    return;
+  if (-1 == stat.min)
+    stat.min = elapsed;
+  else if (stat.min > elapsed)
+    stat.min = elapsed;
+
+  if (stat.max < elapsed)
+    stat.max = elapsed;
+
+  // update_counter should have been called on counter.count before calling
+  // update_elapsed.
+  newcount = counter.count;
+  // New count should never be zero, else there was a programming error.
+  ink_release_assert(newcount);
+  oldcount = counter.count - 1;
+  oldavg = stat.avg;
+  newavg = (oldavg * oldcount + elapsed) / newcount;
+  // Now find the new standard deviation from the old one
+
+  if (oldcount != 0)
+    sum_of_squares = (stat.stddev * stat.stddev * oldcount);
+  else
+    sum_of_squares = 0;
+
+  //Find the old sum of squares.
+  sum_of_squares = sum_of_squares + 2 * oldavg * oldcount * (oldavg - newavg)
+    + oldcount * (newavg * newavg - oldavg * oldavg);
+
+  //Now, find the new sum of squares.
+  sum_of_squares = sum_of_squares + (elapsed - newavg) * (elapsed - newavg);
+
+  stat.stddev = sqrt(sum_of_squares / newcount);
+  stat.avg = newavg;
+
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Update the "result" and "elapsed" stats for a particular record
+inline void
+update_results_elapsed(OriginStats * stat, int result, int elapsed, int size)
+{
+  switch (result) {
+  case SQUID_LOG_TCP_HIT:
+    update_counter(stat->results.hits.hit, size);
+    update_counter(stat->results.hits.total, size);
+    update_elapsed(stat->elapsed.hits.hit, elapsed, stat->results.hits.hit);
+    update_elapsed(stat->elapsed.hits.total, elapsed, stat->results.hits.total);
+    break;
+  case SQUID_LOG_TCP_MISS:
+    update_counter(stat->results.misses.miss, size);
+    update_counter(stat->results.misses.total, size);
+    update_elapsed(stat->elapsed.misses.miss, elapsed, stat->results.misses.miss);
+    update_elapsed(stat->elapsed.misses.total, elapsed, stat->results.misses.total);
+    break;
+  case SQUID_LOG_TCP_IMS_HIT:
+    update_counter(stat->results.hits.ims, size);
+    update_counter(stat->results.hits.total, size);
+    update_elapsed(stat->elapsed.hits.ims, elapsed, stat->results.hits.ims);
+    update_elapsed(stat->elapsed.hits.total, elapsed, stat->results.hits.total);
+    break;
+  case SQUID_LOG_TCP_IMS_MISS:
+    update_counter(stat->results.misses.ims, size);
+    update_counter(stat->results.misses.total, size);
+    update_elapsed(stat->elapsed.misses.ims, elapsed, stat->results.misses.ims);
+    update_elapsed(stat->elapsed.misses.total, elapsed, stat->results.misses.total);
+    break;
+  case SQUID_LOG_TCP_REFRESH_HIT:
+    update_counter(stat->results.hits.refresh, size);
+    update_counter(stat->results.hits.total, size);
+    update_elapsed(stat->elapsed.hits.refresh, elapsed, stat->results.hits.refresh);
+    update_elapsed(stat->elapsed.hits.total, elapsed, stat->results.hits.total);
+    break;
+  case SQUID_LOG_TCP_REFRESH_MISS:
+    update_counter(stat->results.misses.refresh, size);
+    update_counter(stat->results.misses.total, size);
+    update_elapsed(stat->elapsed.misses.refresh, elapsed, stat->results.misses.refresh);
+    update_elapsed(stat->elapsed.misses.total, elapsed, stat->results.misses.total);
+    break;
+  case SQUID_LOG_ERR_CLIENT_ABORT:
+    update_counter(stat->results.errors.client_abort, size);
+    update_counter(stat->results.errors.total, size);
+    break;
+  case SQUID_LOG_ERR_CONNECT_FAIL:
+    update_counter(stat->results.errors.connect_fail, size);
+    update_counter(stat->results.errors.total, size);
+    break;
+  case SQUID_LOG_ERR_INVALID_REQ:
+    update_counter(stat->results.errors.invalid_req, size);
+    update_counter(stat->results.errors.total, size);
+    break;
+  case SQUID_LOG_ERR_UNKNOWN:
+    update_counter(stat->results.errors.unknown, size);
+    update_counter(stat->results.errors.total, size);
+    break;
+  case SQUID_LOG_TCP_DISK_HIT:
+  case SQUID_LOG_TCP_MEM_HIT:
+  case SQUID_LOG_TCP_REF_FAIL_HIT:
+  case SQUID_LOG_UDP_HIT:
+  case SQUID_LOG_UDP_WEAK_HIT:
+  case SQUID_LOG_UDP_HIT_OBJ:
+    update_counter(stat->results.hits.other, size);
+    update_counter(stat->results.hits.total, size);
+    update_elapsed(stat->elapsed.hits.other, elapsed, stat->results.hits.other);
+    update_elapsed(stat->elapsed.hits.total, elapsed, stat->results.hits.total);
+    break;
+  case SQUID_LOG_TCP_EXPIRED_MISS:
+  case SQUID_LOG_TCP_WEBFETCH_MISS:
+  case SQUID_LOG_UDP_MISS:
+    update_counter(stat->results.misses.other, size);
+    update_counter(stat->results.misses.total, size);
+    update_elapsed(stat->elapsed.misses.other, elapsed, stat->results.misses.other);
+    update_elapsed(stat->elapsed.misses.total, elapsed, stat->results.misses.total);
+    break;
+  default:
+    if ((result >= SQUID_LOG_ERR_READ_TIMEOUT) && (result <= SQUID_LOG_ERR_UNKNOWN)) {
+      update_counter(stat->results.errors.other, size);
+      update_counter(stat->results.errors.total, size);
+    } else
+      update_counter(stat->results.other, size);
+    break;
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Update the "codes" stats for a particular record
+inline void
+update_codes(OriginStats * stat, int code, int size)
+{
+  switch (code) {
+  case 100:
+    update_counter(stat->codes.c_100, size);
+    break;
+
+  // 200's
+  case 200:
+    update_counter(stat->codes.c_200, size);
+    break;
+  case 201:
+    update_counter(stat->codes.c_201, size);
+    break;
+  case 202:
+    update_counter(stat->codes.c_202, size);
+    break;
+  case 203:
+    update_counter(stat->codes.c_203, size);
+    break;
+  case 204:
+    update_counter(stat->codes.c_204, size);
+    break;
+  case 205:
+    update_counter(stat->codes.c_205, size);
+    break;
+  case 206:
+    update_counter(stat->codes.c_206, size);
+    break;
+
+  // 300's
+  case 300:
+    update_counter(stat->codes.c_300, size);
+    break;
+  case 301:
+    update_counter(stat->codes.c_301, size);
+    break;
+  case 302:
+    update_counter(stat->codes.c_302, size);
+    break;
+  case 303:
+    update_counter(stat->codes.c_303, size);
+    break;
+  case 304:
+    update_counter(stat->codes.c_304, size);
+    break;
+  case 305:
+    update_counter(stat->codes.c_305, size);
+    break;
+  case 307:
+    update_counter(stat->codes.c_307, size);
+    break;
+
+  // 400's
+  case 400:
+    update_counter(stat->codes.c_400, size);
+    break;
+  case 401:
+    update_counter(stat->codes.c_401, size);
+    break;
+  case 402:
+    update_counter(stat->codes.c_402, size);
+    break;
+  case 403:
+    update_counter(stat->codes.c_403, size);
+    break;
+  case 404:
+    update_counter(stat->codes.c_404, size);
+    break;
+  case 405:
+    update_counter(stat->codes.c_405, size);
+    break;
+  case 406:
+    update_counter(stat->codes.c_406, size);
+    break;
+  case 407:
+    update_counter(stat->codes.c_407, size);
+    break;
+  case 408:
+    update_counter(stat->codes.c_408, size);
+    break;
+  case 409:
+    update_counter(stat->codes.c_409, size);
+    break;
+  case 410:
+    update_counter(stat->codes.c_410, size);
+    break;
+  case 411:
+    update_counter(stat->codes.c_411, size);
+    break;
+  case 412:
+    update_counter(stat->codes.c_412, size);
+    break;
+  case 413:
+    update_counter(stat->codes.c_413, size);
+    break;
+  case 414:
+    update_counter(stat->codes.c_414, size);
+    break;
+  case 415:
+    update_counter(stat->codes.c_415, size);
+    break;
+  case 416:
+    update_counter(stat->codes.c_416, size);
+    break;
+  case 417:
+    update_counter(stat->codes.c_417, size);
+    break;
+
+  // 500's
+  case 500:
+    update_counter(stat->codes.c_500, size);
+    break;
+  case 501:
+    update_counter(stat->codes.c_501, size);
+    break;
+  case 502:
+    update_counter(stat->codes.c_502, size);
+    break;
+  case 503:
+    update_counter(stat->codes.c_503, size);
+    break;
+  case 504:
+    update_counter(stat->codes.c_504, size);
+    break;
+  case 505:
+    update_counter(stat->codes.c_505, size);
+    break;
+  default:
+    break;
+  }
+
+  if ((code >= 600) || (code < 200))
+    update_counter(stat->codes.c_000, size);
+  else if (code >= 500)
+    update_counter(stat->codes.c_5xx, size);
+  else if (code >= 400)
+    update_counter(stat->codes.c_4xx, size);
+  else if (code >= 300)
+    update_counter(stat->codes.c_3xx, size);
+  else if (code >= 200)
+    update_counter(stat->codes.c_2xx, size);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Update the "methods" stats for a particular record
+inline void
+update_methods(OriginStats * stat, int method, int size)
+{
+  // We're so loppsided on GETs, so makes most sense to test 'out of order'.
+  switch (method) {
+  case METHOD_GET:
+    update_counter(stat->methods.get, size);
+    break;
+
+  case METHOD_OPTIONS:
+    update_counter(stat->methods.options, size);
+    break;
+
+  case METHOD_HEAD:
+    update_counter(stat->methods.head, size);
+    break;
+
+  case METHOD_POST:
+    update_counter(stat->methods.post, size);
+    break;
+
+  case METHOD_PUT:
+    update_counter(stat->methods.put, size);
+    break;
+
+  case METHOD_DELETE:
+    update_counter(stat->methods.del, size);
+    break;
+
+  case METHOD_TRACE:
+    update_counter(stat->methods.trace, size);
+    break;
+
+  case METHOD_CONNECT:
+    update_counter(stat->methods.connect, size);
+    break;
+
+  case METHOD_PURGE:
+    update_counter(stat->methods.purge, size);
+    break;
+
+  case METHOD_NONE:
+    update_counter(stat->methods.none, size);
+    break;
+
+  default:
+    update_counter(stat->methods.other, size);
+    break;
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Update the "schemes" stats for a particular record
+inline void
+update_schemes(OriginStats * stat, int scheme, int size)
+{
+  if (SCHEME_HTTP == scheme)
+    update_counter(stat->schemes.http, size);
+  else if (SCHEME_HTTPS == scheme)
+    update_counter(stat->schemes.https, size);
+  else if (SCHEME_NONE == scheme)
+    update_counter(stat->schemes.none, size);
+  else
+    update_counter(stat->schemes.other, size);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Parse a log buffer
+int
+parse_log_buff(LogBufferHeader * buf_header, bool summary = false)
+{
+  static LogFieldList *fieldlist = NULL;
+
+  LogEntryHeader *entry;
+  LogBufferIterator buf_iter(buf_header);
+  LogField *field;
+  OriginStorage::iterator o_iter;
+  ParseStates state;
+
+  char *read_from;
+  char *tok;
+  char *ptr;
+  int tok_len;
+  int flag = 0;                 // Flag used in state machine to carry "state" forward
+
+  // Parsed results
+  int http_code = 0, size = 0, result = 0, hier = 0, elapsed = 0;
+  OriginStats *o_stats;
+  char *o_server;
+  HTTPMethod method;
+  URLScheme scheme;
+
+  if (!fieldlist) {
+    fieldlist = new LogFieldList;
+    ink_assert(fieldlist != NULL);
+    bool agg = false;
+    LogFormat::parse_symbol_string(buf_header->fmt_fieldlist(), fieldlist, &agg);
+  }
+  // Loop over all entries
+  while ((entry = buf_iter.next())) {
+    read_from = (char *) entry + sizeof(LogEntryHeader);
+    // We read and skip over the first field, which is the timestamp.
+    if ((field = fieldlist->first()))
+      read_from += INK_MIN_ALIGN;
+    else                        // This shouldn't happen, buffer must be messed up.
+      break;
+
+    state = P_STATE_ELAPSED;
+    o_stats = NULL;
+    o_server = NULL;
+    method = METHOD_OTHER;
+    scheme = SCHEME_OTHER;
+
+    while ((field = fieldlist->next(field))) {
+      switch (state) {
+      case P_STATE_ELAPSED:
+        state = P_STATE_IP;
+        elapsed = *((int64_t *) (read_from));
+        read_from += INK_MIN_ALIGN;
+        break;
+
+      case P_STATE_IP:
+        state = P_STATE_RESULT;
+        // Just skip the IP, we no longer assume it's always the same.
+        {
+          LogFieldIp* ip = reinterpret_cast<LogFieldIp*>(read_from);
+          int len = sizeof(LogFieldIp);
+          if (AF_INET == ip->_family) len = sizeof(LogFieldIp4);
+          else if (AF_INET6 == ip->_family) len = sizeof(LogFieldIp6);
+          read_from += INK_ALIGN_DEFAULT(len);
+        }
+        break;
+
+      case P_STATE_RESULT:
+        state = P_STATE_CODE;
+        result = *((int64_t *) (read_from));
+        read_from += INK_MIN_ALIGN;
+        if ((result<32) || (result>255)) {
+          flag = 1;
+          state = P_STATE_END;
+        }
+        break;
+
+      case P_STATE_CODE:
+        state = P_STATE_SIZE;
+        http_code = *((int64_t *) (read_from));
+        read_from += INK_MIN_ALIGN;
+        if ((http_code<0) || (http_code>999)) {
+          flag = 1;
+          state = P_STATE_END;
+        }
+        break;
+
+      case P_STATE_SIZE:
+        // Warning: This is not 64-bit safe, when converting the log format,
+        // this needs to be fixed as well.
+        state = P_STATE_METHOD;
+        size = *((int64_t *) (read_from));
+        read_from += INK_MIN_ALIGN;
+        break;
+
+      case P_STATE_METHOD:
+        state = P_STATE_URL;
+        flag = 0;
+
+        // Small optimization for common (3-4 char) cases
+        switch (*reinterpret_cast <int*>(read_from)) {
+        case GET_AS_INT:
+          method = METHOD_GET;
+          read_from += LogAccess::round_strlen(3 + 1);
+          break;
+        case PUT_AS_INT:
+          method = METHOD_PUT;
+          read_from += LogAccess::round_strlen(3 + 1);
+          break;
+        case HEAD_AS_INT:
+          method = METHOD_HEAD;
+          read_from += LogAccess::round_strlen(4 + 1);
+          break;
+        case POST_AS_INT:
+          method = METHOD_POST;
+          read_from += LogAccess::round_strlen(4 + 1);
+          break;
+        default:
+          tok_len = strlen(read_from);
+          if ((5 == tok_len) && (0 == strncmp(read_from, "PURGE", 5)))
+            method = METHOD_PURGE;
+          else if ((6 == tok_len) && (0 == strncmp(read_from, "DELETE", 6)))
+            method = METHOD_DELETE;
+          else if ((7 == tok_len) && (0 == strncmp(read_from, "OPTIONS", 7)))
+            method = METHOD_OPTIONS;
+          else if ((1 == tok_len) && ('-' == *read_from)) {
+            method = METHOD_NONE;
+            flag = 1;           // No method, so no need to parse the URL
+          } else {
+            ptr = read_from;
+            while (*ptr && isupper(*ptr))
+              ++ptr;
+            // Skip URL if it doesn't look like an HTTP method
+            if (*ptr != '\0')
+              flag = 1;
+          }
+          read_from += LogAccess::round_strlen(tok_len + 1);
+          break;
+        }
+        break;
+
+      case P_STATE_URL:
+        state = P_STATE_RFC931;
+        if (urls)
+          urls->add_stat(read_from, size, elapsed, result, http_code, cl.as_object);
+
+        // TODO check for read_from being empty string
+        if (0 == flag) {
+          tok = read_from;
+          if (HTTP_AS_INT == *reinterpret_cast <int*>(tok)) {
+            tok += 4;
+            if (':' == *tok) {
+              scheme = SCHEME_HTTP;
+              tok += 3;
+              tok_len = strlen(tok) + 7;
+            } else if ('s' == *tok) {
+              scheme = SCHEME_HTTPS;
+              tok += 4;
+              tok_len = strlen(tok) + 8;
+            } else
+              tok_len = strlen(tok) + 4;
+          } else {
+            if ('/' == *tok)
+              scheme = SCHEME_NONE;
+            tok_len = strlen(tok);
+          }
+          if ('/' == *tok)      // This is to handle crazy stuff like http:///origin.com
+            tok++;
+          ptr = strchr(tok, '/');
+          if (ptr && !summary) { // Find the origin
+            *ptr = '\0';
+
+            // TODO: If we save state (struct) for a run, we probably need to always
+            // update the origin data, no matter what the origin_set is.
+            if (origin_set->empty() || (origin_set->find(tok) != origin_set->end())) {
+              o_iter = origins.find(tok);
+              if (origins.end() == o_iter) {
+                o_stats = (OriginStats *)ats_malloc(sizeof(OriginStats));
+                memset(o_stats, 0, sizeof(OriginStats));
+                init_elapsed(o_stats);
+                o_server = ats_strdup(tok);
+                if (o_stats && o_server) {
+                  o_stats->server = o_server;
+                  origins[o_server] = o_stats;
+                }
+              } else
+                o_stats = o_iter->second;
+            }
+          }
+        } else {
+          // No method given
+          if ('/' == *read_from)
+            scheme = SCHEME_NONE;
+          tok_len = strlen(read_from);
+        }
+        read_from += LogAccess::round_strlen(tok_len + 1);
+
+        // Update the stats so far, since now we have the Origin (maybe)
+        update_results_elapsed(&totals, result, elapsed, size);
+        update_codes(&totals, http_code, size);
+        update_methods(&totals, method, size);
+        update_schemes(&totals, scheme, size);
+        update_counter(totals.total, size);
+        if (o_stats != NULL) {
+          update_results_elapsed(o_stats, result, elapsed, size);
+          update_codes(o_stats, http_code, size);
+          update_methods(o_stats, method, size);
+          update_schemes(o_stats, scheme, size);
+          update_counter(o_stats->total, size);
+        }
+        break;
+
+      case P_STATE_RFC931:
+        state = P_STATE_HIERARCHY;
+        if ('-' == *read_from)
+          read_from += LogAccess::round_strlen(1 + 1);
+        else
+          read_from += LogAccess::strlen(read_from);
+        break;
+
+      case P_STATE_HIERARCHY:
+        state = P_STATE_PEER;
+        hier = *((int64_t *) (read_from));
+        switch (hier) {
+        case SQUID_HIER_NONE:
+          update_counter(totals.hierarchies.none, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->hierarchies.none, size);
+          break;
+        case SQUID_HIER_DIRECT:
+          update_counter(totals.hierarchies.direct, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->hierarchies.direct, size);
+          break;
+        case SQUID_HIER_SIBLING_HIT:
+          update_counter(totals.hierarchies.sibling, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->hierarchies.sibling, size);
+          break;
+        case SQUID_HIER_PARENT_HIT:
+          update_counter(totals.hierarchies.parent, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->hierarchies.direct, size);
+          break;
+        case SQUID_HIER_EMPTY:
+          update_counter(totals.hierarchies.empty, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->hierarchies.empty, size);
+          break;
+        default:
+          if ((hier >= SQUID_HIER_EMPTY) && (hier < SQUID_HIER_INVALID_ASSIGNED_CODE)) {
+            update_counter(totals.hierarchies.other, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->hierarchies.other, size);
+          } else {
+            update_counter(totals.hierarchies.invalid, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->hierarchies.invalid, size);
+          }
+          break;
+        }
+        read_from += INK_MIN_ALIGN;
+        break;
+
+      case P_STATE_PEER:
+        state = P_STATE_TYPE;
+        if ('-' == *read_from)
+          read_from += LogAccess::round_strlen(1 + 1);
+        else
+          read_from += LogAccess::strlen(read_from);
+        break;
+
+      case P_STATE_TYPE:
+        state = P_STATE_END;
+        if (IMAG_AS_INT == *reinterpret_cast <int*>(read_from)) {
+          update_counter(totals.content.image.total, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->content.image.total, size);
+          tok = read_from + 6;
+          switch (*reinterpret_cast <int*>(tok)) {
+          case JPEG_AS_INT:
+            tok_len = 10;
+            update_counter(totals.content.image.jpeg, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.image.jpeg, size);
+            break;
+          case JPG_AS_INT:
+            tok_len = 9;
+            update_counter(totals.content.image.jpeg, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.image.jpeg, size);
+            break;
+          case GIF_AS_INT:
+            tok_len = 9;
+            update_counter(totals.content.image.gif, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.image.gif, size);
+            break;
+          case PNG_AS_INT:
+            tok_len = 9;
+            update_counter(totals.content.image.png, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.image.png, size);
+            break;
+          case BMP_AS_INT:
+            tok_len = 9;
+            update_counter(totals.content.image.bmp, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.image.bmp, size);
+            break;
+          default:
+            tok_len = 6 + strlen(tok);
+            update_counter(totals.content.image.other, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.image.other, size);
+            break;
+          }
+        } else if (TEXT_AS_INT == *reinterpret_cast <int*>(read_from)) {
+          tok = read_from + 5;
+          update_counter(totals.content.text.total, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->content.text.total, size);
+          switch (*reinterpret_cast <int*>(tok)) {
+          case JAVA_AS_INT:
+            // TODO verify if really "javascript"
+            tok_len = 15;
+            update_counter(totals.content.text.javascript, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.text.javascript, size);
+            break;
+          case CSS_AS_INT:
+            tok_len = 8;
+            update_counter(totals.content.text.css, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.text.css, size);
+            break;
+          case XML_AS_INT:
+            tok_len = 8;
+            update_counter(totals.content.text.xml, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.text.xml, size);
+            break;
+          case HTML_AS_INT:
+            tok_len = 9;
+            update_counter(totals.content.text.html, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.text.html, size);
+            break;
+          case PLAI_AS_INT:
+            tok_len = 10;
+            update_counter(totals.content.text.plain, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.text.plain, size);
+            break;
+          default:
+            tok_len = 5 + strlen(tok);;
+            update_counter(totals.content.text.other, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.text.other, size);
+            break;
+          }
+        } else if (0 == strncmp(read_from, "application", 11)) {
+          tok = read_from + 12;
+          update_counter(totals.content.application.total, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->content.application.total, size);
+          switch (*reinterpret_cast <int*>(tok)) {
+          case ZIP_AS_INT:
+            tok_len = 15;
+            update_counter(totals.content.application.zip, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.application.zip, size);
+            break;
+          case JAVA_AS_INT:
+            tok_len = 22;
+            update_counter(totals.content.application.javascript, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.application.javascript, size);
+          case X_JA_AS_INT:
+            tok_len = 24;
+            update_counter(totals.content.application.javascript, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.application.javascript, size);
+            break;
+          case RSSp_AS_INT:
+            if (0 == strcmp(tok+4, "xml")) {
+              tok_len = 19;
+              update_counter(totals.content.application.rss_xml, size);
+              if (o_stats != NULL)
+                update_counter(o_stats->content.application.rss_xml, size);
+            } else if (0 == strcmp(tok+4,"atom")) {
+              tok_len = 20;
+              update_counter(totals.content.application.rss_atom, size);
+              if (o_stats != NULL)
+                update_counter(o_stats->content.application.rss_atom, size);
+            } else {
+              tok_len = 12 + strlen(tok);
+              update_counter(totals.content.application.rss_other, size);
+              if (o_stats != NULL)
+                update_counter(o_stats->content.application.rss_other, size);
+            }
+            break;
+          default:
+            if (0 == strcmp(tok, "x-shockwave-flash")) {
+              tok_len = 29;
+              update_counter(totals.content.application.shockwave_flash, size);
+              if (o_stats != NULL)
+                update_counter(o_stats->content.application.shockwave_flash, size);
+            } else if (0 == strcmp(tok, "x-quicktimeplayer")) {
+              tok_len = 29;
+              update_counter(totals.content.application.quicktime, size);
+              if (o_stats != NULL)
+                update_counter(o_stats->content.application.quicktime, size);
+            } else {
+              tok_len = 12 + strlen(tok);
+              update_counter(totals.content.application.other, size);
+              if (o_stats != NULL)
+                update_counter(o_stats->content.application.other, size);
+            }
+          }
+        } else if (0 == strncmp(read_from, "audio", 5)) {
+          tok = read_from + 6;
+          tok_len = 6 + strlen(tok);
+          update_counter(totals.content.audio.total, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->content.audio.total, size);
+          if ((0 == strcmp(tok, "x-wav")) || (0 == strcmp(tok, "wav"))) {
+            update_counter(totals.content.audio.wav, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.audio.wav, size);
+          } else if ((0 == strcmp(tok, "x-mpeg")) || (0 == strcmp(tok, "mpeg"))) {
+            update_counter(totals.content.audio.mpeg, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.audio.mpeg, size);
+          } else {
+            update_counter(totals.content.audio.other, size);
+            if (o_stats != NULL)
+              update_counter(o_stats->content.audio.other, size);
+          }
+        } else if ('-' == *read_from) {
+          tok_len = 1;
+          update_counter(totals.content.none, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->content.none, size);
+        } else {
+          tok_len = strlen(read_from);
+          update_counter(totals.content.other, size);
+          if (o_stats != NULL)
+            update_counter(o_stats->content.other, size);
+        }
+        read_from += LogAccess::round_strlen(tok_len + 1);
+        flag = 0;               // We exited this state without errors
+        break;
+
+      case P_STATE_END:
+        // Nothing to do really
+        if (flag) {
+          parse_errors++;
+        }
+        break;
+      }
+    }
+  }
+
+  return 0;
+}
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Process a file (FD)
+int
+process_file(int in_fd, off_t offset, unsigned max_age)
+{
+  char buffer[MAX_LOGBUFFER_SIZE];
+  int nread, buffer_bytes;
+
+  Debug("logstats", "Processing file [offset=%" PRId64 "].", (int64_t)offset);
+  while (true) {
+    Debug("logstats", "Reading initial header.");
+    buffer[0] = '\0';
+
+    unsigned first_read_size = sizeof(uint32_t) + sizeof(uint32_t);
+    LogBufferHeader *header = (LogBufferHeader *)&buffer[0];
+
+    // Find the next log header, aligning us properly. This is not
+    // particularly optimal, but we should only have to do this
+    // once, and hopefully we'll be aligned immediately.
+    if (offset > 0) {
+      Debug("logstats", "Re-aligning file read.");
+      while (true) {
+        if (lseek(in_fd, offset, SEEK_SET) < 0) {
+          Debug("logstats", "Internal seek failed (offset=%"  PRId64 ").", (int64_t)offset);
+          return 1;
+        }
+
+        // read the first 8 bytes of the header, which will give us the
+        // cookie and the version number.
+        nread = read(in_fd, buffer, first_read_size);
+        if (!nread || EOF == nread) {
+          return 0;
+        }
+        // ensure that this is a valid logbuffer header
+        if (header->cookie && (LOG_SEGMENT_COOKIE == header->cookie)) {
+          offset = 0;
+          break;
+        }
+        offset++;
+      }
+      if (!header->cookie) {
+        return 0;
+      }
+    } else {
+      nread = read(in_fd, buffer, first_read_size);
+      if (!nread ||  EOF == nread || !header->cookie)
+        return 0;
+
+      // ensure that this is a valid logbuffer header
+      if (header->cookie != LOG_SEGMENT_COOKIE) {
+        Debug("logstats", "Invalid segment cookie (expected %d, got %d)", LOG_SEGMENT_COOKIE, header->cookie);
+        return 1;
+      }
+    }
+
+    Debug("logstats", "LogBuffer version %d, current = %d", header->version, LOG_SEGMENT_VERSION);
+    if (header->version != LOG_SEGMENT_VERSION)
+      return 1;
+
+    // read the rest of the header
+    unsigned second_read_size = sizeof(LogBufferHeader) - first_read_size;
+    nread = read(in_fd, &buffer[first_read_size], second_read_size);
+    if (!nread || EOF == nread) {
+      Debug("logstats", "Second read of header failed (attemped %d bytes at offset %d, got nothing), errno=%d.", second_read_size, first_read_size, errno);
+      return 1;
+    }
+
+    // read the rest of the buffer
+    if (header->byte_count > sizeof(buffer)) {
+      Debug("logstats", "Header byte count [%d] > expected [%zu]", header->byte_count, sizeof(buffer));
+      return 1;
+    }
+
+    buffer_bytes = header->byte_count - sizeof(LogBufferHeader);
+    if (buffer_bytes <= 0 || (unsigned int) buffer_bytes > (sizeof(buffer) - sizeof(LogBufferHeader))) {
+      Debug("logstats", "Buffer payload [%d] is wrong.", buffer_bytes);
+      return 1;
+    }
+
+    const int MAX_READ_TRIES = 5;
+    int total_read = 0;
+    int read_tries_remaining = MAX_READ_TRIES; // since the data will be old anyway, let's only try a few times.
+    nread = 0;
+    do {
+      nread = read(in_fd, &buffer[sizeof(LogBufferHeader) + total_read], buffer_bytes - total_read);
+      if (EOF == nread || !nread) { // just bail on error
+        Debug("logstats", "Read failed while reading log buffer, wanted %d bytes, nread=%d, errno=%d", buffer_bytes - total_read, nread, errno);
+        return 1;
+      } else {
+        total_read += nread;
+      }
+
+      if (total_read < buffer_bytes) {
+        if (--read_tries_remaining <= 0) {
+          Debug("logstats_failed_retries", "Unable to read after %d tries, total_read=%d, buffer_bytes=%d", MAX_READ_TRIES, total_read, buffer_bytes);
+          return 1;
+        }
+        // let's wait until we get more data on this file descriptor
+        Debug("logstats_partial_read", "Failed to read buffer payload [%d bytes], total_read=%d, buffer_bytes=%d, tries_remaining=%d",
+            buffer_bytes - total_read, total_read, buffer_bytes, read_tries_remaining);
+        usleep(50*1000); // wait 50ms
+      }
+    } while (total_read < buffer_bytes);
+
+    // Possibly skip too old entries (the entire buffer is skipped)
+    if (header->high_timestamp >= max_age) {
+      if (parse_log_buff(header, cl.summary != 0) != 0) {
+        Debug("logstats", "Failed to parse log buffer.");
+        return 1;
+      }
+    } else {
+      Debug("logstats", "Skipping old buffer (age=%d, max=%d)", header->high_timestamp, max_age);
+    }
+  }
+
+  return 0;
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Determine if this "stat" (Origin Server) is worthwhile to produce a
+// report for.
+inline int
+use_origin(const OriginStats * stat)
+{
+  return ((stat->total.count > cl.min_hits) && (NULL != strchr(stat->server, '.')) && (NULL == strchr(stat->server, '%')));
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Produce a nicely formatted output for a stats collection on a stream
+inline void
+format_center(const char *str)
+{
+  std::cout << std::setfill(' ') << std::setw((cl.line_len - strlen(str)) / 2 + strlen(str)) << str << std::endl << std::endl;
+}
+
+inline void
+format_int(int64_t num)
+{
+  if (num > 0) {
+    int64_t mult = (int64_t) pow((double)10, (int) (log10((double)num) / 3) * 3);
+    int64_t div;
+    std::stringstream ss;
+
+    ss.fill('0');
+    while (mult > 0) {
+      div = num / mult;
+      ss << div << std::setw(3);
+      num -= (div * mult);
+      if (mult /= 1000)
+        ss << std::setw(0) << ',' << std::setw(3);
+    }
+    std::cout << ss.str();
+  } else
+    std::cout << '0';
+}
+
+void
+format_elapsed_header()
+{
+  std::cout << std::left << std::setw(24) << "Elapsed time stats";
+  std::cout << std::right << std::setw(7) << "Min" << std::setw(13) << "Max";
+  std::cout << std::right << std::setw(17) << "Avg" << std::setw(17) << "Std Deviation" << std::endl;
+  std::cout << std::setw(cl.line_len) << std::setfill('-') << '-' << std::setfill(' ') << std::endl;
+}
+
+inline void
+format_elapsed_line(const char *desc, const ElapsedStats &stat, bool json=false)
+{
+  if (json) {
+    std::cout << "    " << '"' << desc << "\" : " << "{ ";
+    std::cout << "\"min\": \"" << stat.min << "\", ";
+    std::cout << "\"max\": \"" << stat.max << "\", ";
+    std::cout << "\"avg\": \"" << std::setiosflags(ios::fixed) << std::setprecision(2) << stat.avg << "\", ";
+    std::cout << "\"dev\": \"" << std::setiosflags(ios::fixed) << std::setprecision(2) << stat.stddev << "\" },";
+    std::cout << std::endl;
+  } else {
+    std::cout << std::left << std::setw(24) << desc;
+    std::cout << std::right << std::setw(7);
+    format_int(stat.min);
+    std::cout << std::right << std::setw(13);
+    format_int(stat.max);
+
+    std::cout << std::right << std::setw(17) << std::setiosflags(ios::fixed) << std::setprecision(2) << stat.avg;
+    std::cout << std::right << std::setw(17) << std::setiosflags(ios::fixed) << std::setprecision(2) << stat.stddev;
+    std::cout << std::endl;
+  }
+}
+
+
+void
+format_detail_header(const char *desc)
+{
+  std::cout << std::left << std::setw(29) << desc;
+  std::cout << std::right << std::setw(15) << "Count" << std::setw(11) << "Percent";
+  std::cout << std::right << std::setw(12) << "Bytes" << std::setw(11) << "Percent" << std::endl;
+  std::cout << std::setw(cl.line_len) << std::setfill('-') << '-' << std::setfill(' ') << std::endl;
+}
+
+inline void
+format_line(const char *desc, const StatsCounter &stat, const StatsCounter &total, bool json=false)
+{
+  static char metrics[] = "KKMGTP";
+  static char buf[64];
+  int ix = (stat.bytes > 1024 ? (int) (log10((double)stat.bytes) / LOG10_1024) : 1);
+
+  if (json) {
+    std::cout << "    " << '"' << desc << "\" : " << "{ ";
+    std::cout << "\"req\": \"" << stat.count << "\", ";
+    std::cout << "\"req_pct\": \"" << std::setiosflags(ios::fixed) << std::setprecision(2) <<
+      (double)stat.count / total.count * 100 << "\", ";
+    std::cout << "\"bytes\": \"" << stat.bytes << "\", ";
+    std::cout << "\"bytes_pct\": \"" << std::setiosflags(ios::fixed) << std::setprecision(2) <<
+      (double)stat.bytes / total.bytes * 100 << "\" }," << std::endl;
+  } else {
+    std::cout << std::left << std::setw(29) << desc;
+
+    std::cout << std::right << std::setw(15);
+    format_int(stat.count);
+
+    snprintf(buf, sizeof(buf), "%10.2f%%", ((double) stat.count / total.count * 100));
+    std::cout << std::right << buf;
+
+    snprintf(buf, sizeof(buf), "%10.2f%cB", stat.bytes / pow((double)1024, ix), metrics[ix]);
+    std::cout << std::right << buf;
+
+    snprintf(buf, sizeof(buf), "%10.2f%%", ((double) stat.bytes / total.bytes * 100));
+    std::cout << std::right << buf << std::endl;
+  }
+}
+
+
+// Little "helpers" for the vector we use to sort the Origins.
+typedef pair<const char *, OriginStats *>OriginPair;
+inline bool
+operator<(const OriginPair &a, const OriginPair &b)
+{
+  return a.second->total.count > b.second->total.count;
+}
+
+void
+print_detail_stats(const OriginStats * stat, bool json=false)
+{
+  // Cache hit/misses etc.
+  if (!json)
+    format_detail_header("Request Result");
+
+  format_line(json ? "hit.direct" : "Cache hit", stat->results.hits.hit, stat->total, json);
+  format_line(json ? "hit.ims" : "Cache hit IMS", stat->results.hits.ims, stat->total,json);
+  format_line(json ? "hit.refresh" : "Cache hit refresh", stat->results.hits.refresh, stat->total,json);
+  format_line(json ? "hit.other" : "Cache hit other", stat->results.hits.other, stat->total, json);
+  format_line(json ? "hit.total" : "Cache hit total", stat->results.hits.total, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "miss.direct" : "Cache miss", stat->results.misses.miss, stat->total, json);
+  format_line(json ? "miss.ims" : "Cache miss IMS", stat->results.misses.ims, stat->total, json);
+  format_line(json ? "miss.refresh" : "Cache miss refresh", stat->results.misses.refresh, stat->total, json);
+  format_line(json ? "miss.other" : "Cache miss other", stat->results.misses.other, stat->total, json);
+  format_line(json ? "miss.total" : "Cache miss total", stat->results.misses.total, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "error.client_abort" : "Client aborted", stat->results.errors.client_abort, stat->total, json);
+  format_line(json ? "error.connect_failed" : "Connect failed", stat->results.errors.connect_fail, stat->total, json);
+  format_line(json ? "error.invalid_request" : "Invalid request", stat->results.errors.invalid_req, stat->total, json);
+  format_line(json ? "error.unknown" : "Unknown error(99)", stat->results.errors.unknown, stat->total, json);
+  format_line(json ? "error.other" : "Other errors", stat->results.errors.other, stat->total, json);
+  format_line(json ? "error.total" : "Errors total", stat->results.errors.total, stat->total, json);
+
+  if (!json) {
+    std::cout << std::setw(cl.line_len) << std::setfill('.') << '.' << std::setfill(' ') << std::endl;
+    format_line("Total requests", stat->total, stat->total);
+    std::cout << std::endl << std::endl;
+
+    // HTTP codes
+    format_detail_header("HTTP return codes");
+  }
+
+  format_line(json ? "status.100" : "100 Continue", stat->codes.c_100, stat->total, json);
+
+  format_line(json ? "status.200" : "200 OK", stat->codes.c_200, stat->total, json);
+  format_line(json ? "status.201" : "201 Created", stat->codes.c_201, stat->total, json);
+  format_line(json ? "status.202" : "202 Accepted", stat->codes.c_202, stat->total, json);
+  format_line(json ? "status.203" : "203 Non-Authoritative Info", stat->codes.c_203, stat->total, json);
+  format_line(json ? "status.204" : "204 No content", stat->codes.c_204, stat->total, json);
+  format_line(json ? "status.205" : "205 Reset Content", stat->codes.c_205, stat->total, json);
+  format_line(json ? "status.206" : "206 Partial content", stat->codes.c_206, stat->total, json);
+  format_line(json ? "status.2xx" : "2xx Total", stat->codes.c_2xx, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "status.300" : "300 Multiple Choices", stat->codes.c_300, stat->total, json);
+  format_line(json ? "status.301" : "301 Moved permanently", stat->codes.c_301, stat->total, json);
+  format_line(json ? "status.302" : "302 Found", stat->codes.c_302, stat->total, json);
+  format_line(json ? "status.303" : "303 See Other", stat->codes.c_303, stat->total, json);
+  format_line(json ? "status.304" : "304 Not modified", stat->codes.c_304, stat->total, json);
+  format_line(json ? "status.305" : "305 Use Proxy", stat->codes.c_305, stat->total, json);
+  format_line(json ? "status.307" : "307 Temporary Redirect", stat->codes.c_307, stat->total, json);
+  format_line(json ? "status.3xx" : "3xx Total", stat->codes.c_3xx, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "status.400" : "400 Bad request", stat->codes.c_400, stat->total, json);
+  format_line(json ? "status.401" : "401 Unauthorized", stat->codes.c_401, stat->total, json);
+  format_line(json ? "status.402" : "402 Payment Required", stat->codes.c_402, stat->total, json);
+  format_line(json ? "status.403" : "403 Forbidden", stat->codes.c_403, stat->total, json);
+  format_line(json ? "status.404" : "404 Not found", stat->codes.c_404, stat->total, json);
+  format_line(json ? "status.405" : "405 Method Not Allowed", stat->codes.c_405, stat->total, json);
+  format_line(json ? "status.406" : "406 Not Acceptable", stat->codes.c_406, stat->total, json);
+  format_line(json ? "status.407" : "407 Proxy Auth Required", stat->codes.c_407, stat->total, json);
+  format_line(json ? "status.408" : "408 Request Timeout", stat->codes.c_408, stat->total, json);
+  format_line(json ? "status.409" : "409 Conflict", stat->codes.c_409, stat->total, json);
+  format_line(json ? "status.410" : "410 Gone", stat->codes.c_410, stat->total, json);
+  format_line(json ? "status.411" : "411 Length Required", stat->codes.c_411, stat->total, json);
+  format_line(json ? "status.412" : "412 Precondition Failed", stat->codes.c_412, stat->total, json);
+  format_line(json ? "status.413" : "413 Request Entity Too Large", stat->codes.c_413, stat->total, json);
+  format_line(json ? "status.414" : "414 Request-URI Too Long", stat->codes.c_414, stat->total, json);
+  format_line(json ? "status.415" : "415 Unsupported Media Type", stat->codes.c_415, stat->total, json);
+  format_line(json ? "status.416" : "416 Req Range Not Satisfiable", stat->codes.c_416, stat->total, json);
+  format_line(json ? "status.417" : "417 Expectation Failed", stat->codes.c_417, stat->total, json);
+  format_line(json ? "status.4xx" : "4xx Total", stat->codes.c_4xx, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "status.500" : "500 Internal Server Error", stat->codes.c_500, stat->total, json);
+  format_line(json ? "status.501" : "501 Not implemented", stat->codes.c_501, stat->total, json);
+  format_line(json ? "status.502" : "502 Bad gateway", stat->codes.c_502, stat->total, json);
+  format_line(json ? "status.503" : "503 Service unavailable", stat->codes.c_503, stat->total, json);
+  format_line(json ? "status.504" : "504 Gateway Timeout", stat->codes.c_504, stat->total, json);
+  format_line(json ? "status.505" : "505 HTTP Ver. Not Supported", stat->codes.c_505, stat->total, json);
+  format_line(json ? "status.5xx" : "5xx Total", stat->codes.c_5xx, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "status.000" : "000 Unknown", stat->codes.c_000, stat->total, json);
+
+  if (!json) {
+    std::cout << std::endl << std::endl;
+
+    // Origin hierarchies
+    format_detail_header("Origin hierarchies");
+  }
+
+  format_line(json ? "hier.none" : "NONE", stat->hierarchies.none, stat->total, json);
+  format_line(json ? "hier.direct" : "DIRECT", stat->hierarchies.direct, stat->total, json);
+  format_line(json ? "hier.sibling" : "SIBLING", stat->hierarchies.sibling, stat->total, json);
+  format_line(json ? "hier.parent" : "PARENT", stat->hierarchies.parent, stat->total, json);
+  format_line(json ? "hier.empty" : "EMPTY", stat->hierarchies.empty, stat->total, json);
+  format_line(json ? "hier.invalid" : "invalid", stat->hierarchies.invalid, stat->total, json);
+  format_line(json ? "hier.other" : "other", stat->hierarchies.other, stat->total, json);
+
+  if (!json) {
+    std::cout << std::endl << std::endl;
+
+    // HTTP methods
+    format_detail_header("HTTP Methods");
+  }
+
+  format_line(json ? "method.options" : "OPTIONS", stat->methods.options, stat->total, json);
+  format_line(json ? "method.get" : "GET", stat->methods.get, stat->total, json);
+  format_line(json ? "method.head" : "HEAD", stat->methods.head, stat->total, json);
+  format_line(json ? "method.post" : "POST", stat->methods.post, stat->total, json);
+  format_line(json ? "method.put" : "PUT", stat->methods.put, stat->total, json);
+  format_line(json ? "method.delete" : "DELETE", stat->methods.del, stat->total, json);
+  format_line(json ? "method.trace" : "TRACE", stat->methods.trace, stat->total, json);
+  format_line(json ? "method.connect" : "CONNECT", stat->methods.connect, stat->total, json);
+  format_line(json ? "method.purge" : "PURGE", stat->methods.purge, stat->total, json);
+  format_line(json ? "method.none" : "none (-)", stat->methods.none, stat->total, json);
+  format_line(json ? "method.other" : "other", stat->methods.other, stat->total, json);
+
+  if (!json) {
+    std::cout << std::endl << std::endl;
+
+    // URL schemes (HTTP/HTTPs)
+    format_detail_header("URL Schemes");
+  }
+
+  format_line(json ? "scheme.http" : "HTTP (port 80)", stat->schemes.http, stat->total, json);
+  format_line(json ? "scheme.https" : "HTTPS (port 443)", stat->schemes.https, stat->total, json);
+  format_line(json ? "scheme.none" : "none", stat->schemes.none, stat->total, json);
+  format_line(json ? "scheme.other" : "other", stat->schemes.other, stat->total, json);
+
+  if (!json) {
+    std::cout << std::endl << std::endl;
+
+    // Content types
+    format_detail_header("Content Types");
+  }
+
+  format_line(json ? "content.text.javascript" : "text/javascript", stat->content.text.javascript, stat->total, json);
+  format_line(json ? "content.text.css" : "text/css", stat->content.text.css, stat->total, json);
+  format_line(json ? "content.text.html" : "text/html", stat->content.text.html, stat->total, json);
+  format_line(json ? "content.text.xml" : "text/xml", stat->content.text.xml, stat->total, json);
+  format_line(json ? "content.text.plain" : "text/plain", stat->content.text.plain, stat->total, json);
+  format_line(json ? "content.text.other" : "text/ other", stat->content.text.other, stat->total, json);
+  format_line(json ? "content.text.total" : "text/ total", stat->content.text.total, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "content.image.jpeg" : "image/jpeg", stat->content.image.jpeg, stat->total, json);
+  format_line(json ? "content.image.gif" : "image/gif", stat->content.image.gif, stat->total, json);
+  format_line(json ? "content.image.png" : "image/png", stat->content.image.png, stat->total, json);
+  format_line(json ? "content.image.bmp" : "image/bmp", stat->content.image.bmp, stat->total, json);
+  format_line(json ? "content.image.other" : "image/ other", stat->content.image.other, stat->total, json);
+  format_line(json ? "content.image.total" : "image/ total", stat->content.image.total, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "content.audio.x-wav" : "audio/x-wav", stat->content.audio.wav, stat->total, json);
+  format_line(json ? "content.audio.x-mpeg" : "audio/x-mpeg", stat->content.audio.mpeg, stat->total, json);
+  format_line(json ? "content.audio.other" : "audio/ other", stat->content.audio.other, stat->total, json);
+  format_line(json ? "content.audio.total": "audio/ total", stat->content.audio.total, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "content.application.shockwave" : "application/x-shockwave", stat->content.application.shockwave_flash, stat->total, json);
+  format_line(json ? "content.application.javascript" : "application/[x-]javascript", stat->content.application.javascript, stat->total, json);
+  format_line(json ? "content.application.quicktime" : "application/x-quicktime", stat->content.application.quicktime, stat->total, json);
+  format_line(json ? "content.application.zip" : "application/zip", stat->content.application.zip, stat->total, json);
+  format_line(json ? "content.application.rss_xml" : "application/rss+xml", stat->content.application.rss_xml, stat->total, json);
+  format_line(json ? "content.application.rss_atom" : "application/rss+atom", stat->content.application.rss_atom, stat->total, json);
+  format_line(json ? "content.application.other" : "application/ other", stat->content.application.other, stat->total, json);
+  format_line(json ? "content.application.total": "application/ total", stat->content.application.total, stat->total, json);
+
+  if (!json)
+    std::cout << std::endl;
+
+  format_line(json ? "content.none" : "none", stat->content.none, stat->total, json);
+  format_line(json ? "content.other" : "other", stat->content.other, stat->total, json);
+
+  if (!json) {
+    std::cout << std::endl << std::endl;
+
+  // Elapsed time
+    format_elapsed_header();
+  }
+
+  format_elapsed_line(json ? "hit.direct.latency" : "Cache hit", stat->elapsed.hits.hit, json);
+  format_elapsed_line(json ? "hit.ims.latency" : "Cache hit IMS", stat->elapsed.hits.ims, json);
+  format_elapsed_line(json ? "hit.refresh.latency" : "Cache hit refresh", stat->elapsed.hits.refresh, json);
+  format_elapsed_line(json ? "hit.other.latency" : "Cache hit other", stat->elapsed.hits.other, json);
+  format_elapsed_line(json ? "hit.total.latency" : "Cache hit total", stat->elapsed.hits.total, json);
+
+  format_elapsed_line(json ? "miss.direct.latency" : "Cache miss", stat->elapsed.misses.miss, json);
+  format_elapsed_line(json ? "miss.ims.latency" : "Cache miss IMS", stat->elapsed.misses.ims, json);
+  format_elapsed_line(json ? "miss.refresh.latency" : "Cache miss refresh", stat->elapsed.misses.refresh, json);
+  format_elapsed_line(json ? "miss.other.latency" : "Cache miss other", stat->elapsed.misses.other, json);
+  format_elapsed_line(json ? "miss.total.latency" : "Cache miss total", stat->elapsed.misses.total, json);
+
+  if (!json) {
+    std::cout << std::endl;
+    std::cout << std::setw(cl.line_len) << std::setfill('_') << '_' << std::setfill(' ') << std::endl;
+  } else {
+    std::cout << "    \"_timestamp\" : \"" << static_cast<int>(ink_time_wall_seconds()) << '"' << std::endl;
+  }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+// Little wrapper around exit, to allow us to exit gracefully
+void
+my_exit(const ExitStatus& status)
+{
+  vector<OriginPair> vec;
+  bool first = true;
+  int max_origins;
+
+  // Special case for URLs output.
+  if (urls) {
+    urls->dump(cl.as_object);
+    if (cl.as_object)
+      std::cout << "}" << std::endl;
+    else
+      std::cout << "]" << std::endl;
+    _exit(status.level);
+  }
+
+  if (cl.json) {
+    // TODO: produce output
+  } else {
+    switch (status.level) {
+    case EXIT_OK:
+      break;
+    case EXIT_WARNING:
+      std::cout << "warning: " << status.notice << std::endl;
+      break;
+    case EXIT_CRITICAL:
+      std::cout << "critical: " << status.notice << std::endl;
+      _exit(status.level);
+      break;
+    case EXIT_UNKNOWN:
+      std::cout << "unknown: " << status.notice << std::endl;
+      _exit(status.level);
+      break;
+    }
+  }
+
+  if (!origins.empty()) {
+    // Sort the Origins by 'traffic'
+    for (OriginStorage::iterator i = origins.begin(); i != origins.end(); i++)
+      if (use_origin(i->second))
+        vec.push_back(*i);
+    sort(vec.begin(), vec.end());
+
+    if (!cl.json) {
+      // Produce a nice summary first
+      format_center("Traffic summary");
+      std::cout << std::left << std::setw(33) << "Origin Server";
+      std::cout << std::right << std::setw(15) << "Hits";
+      std::cout << std::right << std::setw(15) << "Misses";
+      std::cout << std::right << std::setw(15) << "Errors" << std::endl;
+      std::cout << std::setw(cl.line_len) << std::setfill('-') << '-' << std::setfill(' ') << std::endl;
+
+      max_origins = cl.max_origins > 0 ? cl.max_origins : INT_MAX;
+      for (vector<OriginPair>::iterator i = vec.begin(); (i != vec.end()) && (max_origins > 0); ++i, --max_origins) {
+        std::cout << std::left << std::setw(33) << i->first;
+        std::cout << std::right << std::setw(15);
+        format_int(i->second->results.hits.total.count);
+        std::cout << std::right << std::setw(15);
+        format_int(i->second->results.misses.total.count);
+        std::cout << std::right << std::setw(15);
+        format_int(i->second->results.errors.total.count);
+        std::cout << std::endl;
+      }
+      std::cout << std::setw(cl.line_len) << std::setfill('=') << '=' << std::setfill(' ') << std::endl;
+      std::cout << std::endl << std::endl << std::endl;
+    }
+  }
+
+  // Next the totals for all Origins, unless we specified a list of origins to filter.
+  if (origin_set->empty()) {
+    first = false;
+    if (cl.json) {
+      std::cout << "{ \"total\": {" << std::endl;
+      print_detail_stats(&totals, cl.json);
+      std::cout << "  }";
+    } else {
+      format_center("Totals (all Origins combined)");
+      print_detail_stats(&totals);
+      std::cout << std::endl << std::endl << std::endl;
+    }
+  }
+
+  // And finally the individual Origin Servers.
+  max_origins = cl.max_origins > 0 ? cl.max_origins : INT_MAX;
+  for (vector<OriginPair>::iterator i = vec.begin(); (i != vec.end()) && (max_origins > 0); ++i, --max_origins) {
+    if (cl.json) {
+      if (first) {
+        std::cout << "{ ";
+        first = false;
+      } else {
+        std::cout << "," << std::endl << "  ";
+      }
+      std::cout << '"' <<  i->first << "\": {" << std::endl;
+      print_detail_stats(i->second, cl.json);
+      std::cout << "  }";
+    } else {
+      format_center(i->first);
+      print_detail_stats(i->second);
+      std::cout << std::endl << std::endl << std::endl;
+    }
+  }
+
+  if (cl.json) {
+    std::cout << std::endl << "}" << std::endl;
+  }
+
+  _exit(status.level);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Open the "default" log file (squid.blog), allow for it to be rotated.
+int
+open_main_log(ExitStatus& status)
+{
+  std::string logfile(Layout::get()->logdir);
+  int cnt = 3;
+  int main_fd;
+
+  logfile.append("/squid.blog");
+  while (((main_fd = open(logfile.c_str(), O_RDONLY)) < 0) && --cnt) {
+    switch (errno) {
+    case ENOENT:
+    case EACCES:
+      sleep(5);
+      break;
+    default:
+      status.append(" can't open squid.blog");
+      return -1;
+    }
+  }
+
+  if (main_fd < 0) {
+    status.append(" squid.blog not enabled");
+    return -1;
+  }
+#if HAVE_POSIX_FADVISE
+  posix_fadvise(main_fd, 0, 0, POSIX_FADV_DONTNEED);
+#endif
+  return main_fd;
+}
+
+
+
+///////////////////////////////////////////////////////////////////////////////
+// main
+int
+main(int /* argc ATS_UNUSED */, char *argv[])
+{
+  ExitStatus exit_status;
+  int res, cnt;
+  int main_fd;
+  unsigned max_age;
+  struct flock lck;
+
+  // build the application information structure
+  appVersionInfo.setup(PACKAGE_NAME,PROGRAM_NAME, PACKAGE_VERSION, __DATE__, __TIME__,
+                       BUILD_MACHINE, BUILD_PERSON, "");
+
+  // Before accessing file system initialize Layout engine
+  Layout::create();
+
+  memset(&totals, 0, sizeof(totals));
+  init_elapsed(&totals);
+
+  origin_set = new OriginSet;
+  parse_errors = 0;
+
+  // Command line parsing
+  cl.parse_arguments(argv);
+
+  // Calculate the max age of acceptable log entries, if necessary
+  if (cl.max_age > 0) {
+    struct timeval tv;
+
+    gettimeofday(&tv, NULL);
+    max_age = tv.tv_sec - cl.max_age;
+  } else {
+    max_age = 0;
+  }
+
+  // initialize this application for standalone logging operation
+  init_log_standalone_basic(PROGRAM_NAME);
+  Log::init(Log::NO_REMOTE_MANAGEMENT | Log::LOGCAT);
+
+  // Do we have a list of Origins on the command line?
+  if (cl.origin_list[0] != '\0') {
+    char *tok;
+    char *sep_ptr;
+
+    for (tok = strtok_r(cl.origin_list, ",", &sep_ptr); tok != NULL;) {
+      origin_set->insert(tok);
+      tok = strtok_r(NULL, ",", &sep_ptr);
+    }
+  }
+  // Load origins from an "external" file (\n separated)
+  if (cl.origin_file[0] != '\0') {
+    std::ifstream fs;
+
+    fs.open(cl.origin_file, std::ios::in);
+    if (!fs.is_open()) {
+      std::cerr << "can't read " << cl.origin_file << std::endl;
+      usage(argument_descriptions, countof(argument_descriptions), USAGE_LINE);
+      _exit(0);
+    }
+
+    while (!fs.eof()) {
+      std::string line;
+      std::string::size_type start, end;
+
+      getline(fs, line);
+      start = line.find_first_not_of(" \t");
+      if (start != std::string::npos) {
+        end = line.find_first_of(" \t#/");
+        if (std::string::npos == end)
+          end = line.length();
+
+        if (end > start) {
+          char *buf;
+
+          buf = ats_strdup(line.substr(start, end).c_str());
+          if (buf) {
+            origin_set->insert(buf);
+          }
+        }
+      }
+    }
+  }
+
+  // Produce the CGI header first (if applicable)
+  if (cl.cgi) {
+    std::cout << "Content-Type: application/javascript\r\n";
+    std::cout << "Cache-Control: no-cache\r\n\r\n";
+  }
+
+  // Should we calculate per URL data;
+  if (cl.urls != 0) {
+    urls = new UrlLru(cl.urls, cl.show_urls);
+    if (cl.as_object)
+      std::cout << "{" << std::endl;
+    else
+      std::cout << "[" << std::endl;
+  }
+
+  // Do the incremental parse of the default squid log.
+  if (cl.incremental) {
+    // Change directory to the log dir
+    if (chdir(Layout::get()->logdir) < 0) {
+      exit_status.set(EXIT_CRITICAL, " can't chdir to ");
+      exit_status.append(Layout::get()->logdir);
+      my_exit(exit_status);
+    }
+
+    std::string sf_name(Layout::get()->logdir);
+    struct stat stat_buf;
+    int state_fd;
+    sf_name.append("/logstats.state");
+
+    if (cl.state_tag[0] != '\0') {
+      sf_name.append(".");
+      sf_name.append(cl.state_tag);
+    } else {
+      // Default to the username
+      struct passwd *pwd = getpwuid(geteuid());
+
+      if (pwd) {
+        sf_name.append(".");
+        sf_name.append(pwd->pw_name);
+      } else {
+        exit_status.set(EXIT_CRITICAL, " can't get current UID");
+        my_exit(exit_status);
+      }
+    }
+
+    if ((state_fd = open(sf_name.c_str(), O_RDWR | O_CREAT, S_IRUSR | S_IWUSR)) < 0) {
+      exit_status.set(EXIT_CRITICAL, " can't open state file ");
+      exit_status.append(sf_name);
+      my_exit(exit_status);
+    }
+    // Get an exclusive lock, if possible. Try for up to 20 seconds.
+    // Use more portable & standard fcntl() over flock()
+    lck.l_type = F_WRLCK;
+    lck.l_whence = 0; /* offset l_start from beginning of file*/
+    lck.l_start = (off_t)0;
+    lck.l_len = (off_t)0; /* till end of file*/
+    cnt = 10;
+    while (((res = fcntl(state_fd, F_SETLK, &lck)) < 0) && --cnt) {
+      switch (errno) {
+      case EWOULDBLOCK:
+      case EINTR:
+        sleep(2);
+        break;
+      default:
+        exit_status.set(EXIT_CRITICAL, " locking failure");
+        my_exit(exit_status);
+        break;
+      }
+    }
+
+    if (res < 0) {
+      exit_status.set(EXIT_CRITICAL, " can't lock state file");
+      my_exit(exit_status);
+    }
+    // Fetch previous state information, allow for concurrent accesses.
+    cnt = 10;
+    while (((res = read(state_fd, &last_state, sizeof(last_state))) < 0) && --cnt) {
+      switch (errno) {
+      case EINTR:
+      case EAGAIN:
+        sleep(1);
+        break;
+      default:
+        exit_status.set(EXIT_CRITICAL, " can't read state file");
+        my_exit(exit_status);
+        break;
+      }
+    }
+
+    if (res != sizeof(last_state)) {
+      // First time / empty file, so reset.
+      last_state.offset = 0;
+      last_state.st_ino = 0;
+    }
+
+    if ((main_fd = open_main_log(exit_status)) < 0) {
+      exit_status.set(EXIT_CRITICAL);
+      my_exit(exit_status);
+    }
+
+    // Get stat's from the main log file.
+    if (fstat(main_fd, &stat_buf) < 0) {
+      exit_status.set(EXIT_CRITICAL, " can't stat squid.blog");
+      my_exit(exit_status);
+    }
+    // Make sure the last_state.st_ino is sane.
+    if (last_state.st_ino <= 0)
+      last_state.st_ino = stat_buf.st_ino;
+
+    // Check if the main log file was rotated, and if so, locate
+    // the old file first, and parse the remaining log data.
+    if (stat_buf.st_ino != last_state.st_ino) {
+      DIR *dirp = NULL;
+      struct dirent *dp = NULL;
+      ino_t old_inode = last_state.st_ino;
+
+      // Save the current log-file's I-Node number.
+      last_state.st_ino = stat_buf.st_ino;
+
+      // Find the old log file.
+      dirp = opendir(Layout::get()->logdir);
+      if (NULL == dirp) {
+        exit_status.set(EXIT_WARNING, " can't read log directory");
+      } else {
+        while ((dp = readdir(dirp)) != NULL) {
+          if (stat(dp->d_name, &stat_buf) < 0) {
+            exit_status.set(EXIT_WARNING, " can't stat ");
+            exit_status.append(dp->d_name);
+          } else if (stat_buf.st_ino == old_inode) {
+            int old_fd = open(dp->d_name, O_RDONLY);
+
+            if (old_fd < 0) {
+              exit_status.set(EXIT_WARNING, " can't open ");
+              exit_status.append(dp->d_name);
+              break;            // Don't attempt any more files
+            }
+            // Process it
+            if (process_file(old_fd, last_state.offset, max_age) != 0) {
+              exit_status.set(EXIT_WARNING, " can't read ");
+              exit_status.append(dp->d_name);
+            }
+            close(old_fd);
+            break;              // Don't attempt any more files
+          }
+        }
+      }
+      // Make sure to read from the beginning of the freshly rotated file.
+      last_state.offset = 0;
+    } else {
+      // Make sure the last_state.offset is sane, stat_buf is for the main_fd.
+      if (last_state.offset > stat_buf.st_size)
+        last_state.offset = stat_buf.st_size;
+    }
+
+    // Process the main file (always)
+    if (process_file(main_fd, last_state.offset, max_age) != 0) {
+      exit_status.set(EXIT_CRITICAL, " can't parse log");
+      last_state.offset = 0;
+      last_state.st_ino = 0;
+    } else {
+      // Save the current file offset.
+      last_state.offset = lseek(main_fd, 0, SEEK_CUR);
+      if (last_state.offset < 0) {
+        exit_status.set(EXIT_WARNING, " can't lseek squid.blog");
+        last_state.offset = 0;
+      }
+    }
+
+    // Save the state, release the lock, and close the FDs.
+    if (lseek(state_fd, 0, SEEK_SET) < 0) {
+      exit_status.set(EXIT_WARNING, " can't lseek state file");
+    } else {
+      if (-1 == write(state_fd, &last_state, sizeof(last_state))) {
+        exit_status.set(EXIT_WARNING, " can't write state_fd ");
+      }
+    }
+    //flock(state_fd, LOCK_UN);
+    lck.l_type = F_UNLCK;
+    fcntl(state_fd, F_SETLK, &lck);
+    close(main_fd);
+    close(state_fd);
+  } else {
+    if (cl.log_file[0] != '\0') {
+      main_fd = open(cl.log_file, O_RDONLY);
+      if (main_fd < 0) {
+        exit_status.set(EXIT_CRITICAL, " can't open log file ");
+        exit_status.append(cl.log_file);
+        my_exit(exit_status);
+      }
+    } else {
+      main_fd = open_main_log(exit_status);
+    }
+
+    if (cl.tail > 0) {
+      if (lseek(main_fd, 0, SEEK_END) < 0) {
+        exit_status.set(EXIT_CRITICAL, " can't lseek squid.blog");
+        my_exit(exit_status);
+      }
+      sleep(cl.tail);
+    }
+
+    if (process_file(main_fd, 0, max_age) != 0) {
+      close(main_fd);
+      exit_status.set(EXIT_CRITICAL, " can't parse log file ");
+      exit_status.append(cl.log_file);
+      my_exit(exit_status);
+    }
+    close(main_fd);
+  }
+
+  // All done.
+  if (EXIT_OK == exit_status.level)
+    exit_status.append(" OK");
+  my_exit(exit_status);
+}
diff --git a/proxy/regression.pl b/proxy/regression.pl
new file mode 100644
index 00000000..ce40fdb1
--- /dev/null
+++ b/proxy/regression.pl
@@ -0,0 +1,166 @@
+#!/usr/local/bin/perl
+
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+#
+
+# This just runs one load regression session and writes everything to
+# the screen.
+
+
+# use /usr/ucb/rsh, not /usr/sbin/rsh...
+$ENV{PATH} = "/usr/ucb:$ENV{PATH}";
+
+require 'hostname.pl';
+require 'ctime.pl';
+########################################
+# CONFIG
+########################################
+#$myserverportbase controls which range of ports are used on the ptest
+# cluster.  It is a good idea to leave a gap of 20 ports between starting
+# port #s.
+$myserverportbase{'foo'} = 10140;
+chomp($ARCH=`arch`);
+$test_bindir = "/net/granite/qa/ts/share/bin";
+#$test_bindir = "/net/proxydev/export/crawlspace/workareas/clarsen/q/quality/sqe/ts_test";
+# $users controls the 'load'.
+$users = 10;
+$testlength=180;		# 3 minutes per test
+$one_at_a_time = 1;
+$version = "2.0";		# temp hack until multi-version support
+########################################
+# END of CONFIG
+########################################
+args:
+    while ($x = $ARGV[0]) {
+	if ($x eq "-h") {
+	    shift(@ARGV);
+	    $myhost = shift(@ARGV);
+	} elsif ($x eq "-p") {
+	    shift(@ARGV);
+	    $myport = shift(@ARGV);
+	} elsif ($x eq "-u") {
+	    shift(@ARGV);
+	    $users = shift(@ARGV);
+	} elsif ($x eq "-version") {
+	    shift(@ARGV);
+	    $version = shift(@ARGV);
+	} elsif ($x eq "-l") {
+	    shift(@ARGV);
+	    $testlength = shift(@ARGV);
+	} elsif ($x eq "-v") {
+	    $verbose = "-verbose";
+	    shift(@ARGV);
+	} elsif ($x eq "-all") {
+	    $one_at_a_time = 0;
+	    shift(@ARGV);
+	} elsif ($x eq "-t") {
+	    shift(@ARGV);
+	    @tests = split(',',shift(@ARGV));
+	} else {
+	    last args;
+	}
+    }
+
+$|=1;				# unbuffer I/O
+
+if (!defined($myhost)) {
+    $myhost  = &hostname;
+}
+open(ID,"id|");
+while(<ID>) {
+    chomp;
+    if (/uid=\d+\(([^\)]*)/) {
+	$mylogin = "$1";
+    }
+}
+close(ID);
+if (! defined($mylogin)) {
+    die "Couldn't determine login from the id command.";
+}
+
+if (!defined($myport)) {
+    if (! (-e "etc/trafficserver/records.config.shadow") && ! ( -e "etc/trafficserver/records.config")) {
+	die "This must be run from traffic/proxy, and you must have etc/trafficserver/records.config.shadow set up.";
+    }
+    open(S,"<etc/trafficserver/records.config.shadow") || open(S,"<etc/trafficserver/records.config");
+    while (<S>) {
+	if (/proxy.config.http.server_port\s/) {
+	    ($x,$y,$z,$myport) = split(/\s+/);
+	}
+    }
+    close(S);
+    if (!defined($myport)) {
+	die "Couldn't determine your server port number";
+    } else {
+	print "Using proxy on $myhost:$myport\n";
+    }
+}
+
+$baseport = $myserverportbase{$mylogin};
+if (!defined($baseport)) {
+    die "You must set \$myserverportbase{'$mylogin'}";
+}
+
+if ( ! (-d $test_bindir)) {
+    die "$test_bindir doesn't exist?  Maybe /net/granite isn't available.";
+}
+$SIG{'TERM'} = sub {
+    print "caught TERM\n";
+    kill 'TERM', 0;
+    exit;
+};
+$SIG{'INT'} = sub {
+    print "caught INT\n";
+    kill 'INT', 0;
+    exit;
+};
+$SIG{'QUIT'} = sub {
+    print "caught QUIT\n";
+    kill 'QUIT', 0;
+    exit;
+};
+sub test_maybe_exit {
+    my ($rc) = @_;
+    $rc = $rc & 0xffff;
+    if ($rc > 0x80) {
+	print "---- failed\n";
+    }
+    if ($rc != 0) {		# caught a signal
+	print &ctime(time);
+	die "Caught a signal";
+    }
+}
+if ($one_at_a_time) {
+    if (!defined(@tests)) {
+	#@tests = ('bad-header', 'garbage-1' 'garbage-2', 'cache', 'inkbench', 'garbage-1' );
+	@tests = ('jtest', 'cache', 'inkbench', 'bad-header', 'garbage-2', 'garbage-1' );
+    } 
+    foreach $i (@tests) {
+	print "---- Running '$i' test on $myhost:$myport for $testlength seconds with $users users load\n";
+	print &ctime(time);
+	&test_maybe_exit(system("$test_bindir/run_all.pl $myhost $myport -hostpool inktomi -version $version -users $users -baseport $baseport -testlength $testlength -only $i $verbose"));
+	print &ctime(time);
+	print "---- Done with $i test\n";
+    }
+} else {
+    @except = ('http11');
+    $excepts = join(',',@except);
+    print "Running all tests (except $excepts) on $myhost:$myport for $testlength seconds with $users users total load\n";
+    &test_maybe_exit(system("$test_bindir/run_all.pl $myhost $myport -hostpool inktomi -version $version -users $users -baseport $baseport -testlength $testlength -except $excepts $verbose"));
+}
diff --git a/proxy/sac.cc b/proxy/sac.cc
new file mode 100644
index 00000000..2cea55d7
--- /dev/null
+++ b/proxy/sac.cc
@@ -0,0 +1,130 @@
+/** @file
+
+  Standalone Collator
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "ink_config.h"
+#include "ink_file.h"
+#include "I_Layout.h"
+#include "I_Version.h"
+#include "P_Net.h"
+
+#define PROGRAM_NAME  "traffic_sac"
+
+#include "LogStandalone.cc"
+
+#include "LogAccess.h"
+#include "LogField.h"
+#include "LogFilter.h"
+#include "LogFormat.h"
+#include "LogFile.h"
+#include "LogHost.h"
+#include "LogObject.h"
+#include "LogConfig.h"
+#include "LogBuffer.h"
+#include "LogUtils.h"
+#include "LogSock.h"
+#include "Log.h"
+#include "DiagsConfig.h"
+#include "I_Machine.h"
+
+#define DIAGS_LOG_FILENAME "collector.log"
+
+// sac-specific command-line flags
+//
+static int version_flag = 0;
+
+// command-line argument descriptions
+//
+
+ArgumentDescription argument_descriptions[] = {
+
+  {"version", 'V', "Print Version Id", "T", &version_flag, NULL, NULL},
+#ifdef DEBUG
+  {"error_tags", 'T', "Colon-Separated Debug Tags", "S1023", &error_tags,
+   NULL, NULL},
+  {"action_tags", 'A', "Colon-Separated Debug Tags", "S1023", &action_tags,
+   NULL, NULL},
+#endif
+  {"help", 'h', "HELP!", NULL, NULL, NULL, usage},
+};
+
+/*-------------------------------------------------------------------------
+  main
+  -------------------------------------------------------------------------*/
+
+int
+main(int /* argc ATS_UNUSED */, char *argv[])
+{
+  // build the application information structure
+  //
+  appVersionInfo.setup(PACKAGE_NAME,PROGRAM_NAME, PACKAGE_VERSION, __DATE__,
+                       __TIME__, BUILD_MACHINE, BUILD_PERSON, "");
+
+  // Before accessing file system initialize Layout engine
+  Layout::create();
+  // take care of command-line arguments
+  //
+  process_args(argument_descriptions, countof(argument_descriptions), argv);
+
+  // check for the version number request
+  //
+  if (version_flag) {
+    fprintf(stderr, "%s\n", appVersionInfo.FullVersionInfoStr);
+    _exit(0);
+  }
+
+  diagsConfig = new DiagsConfig(DIAGS_LOG_FILENAME, error_tags, action_tags, false);
+  diags = diagsConfig->diags;
+  diags->prefix_str = "Collector ";
+
+  // initialize this application for standalone logging operation
+  //
+  bool one_copy = true;
+  init_log_standalone(PROGRAM_NAME, one_copy);
+
+  // set up IO Buffers
+  //
+  int config_max_iobuffer_size = DEFAULT_MAX_BUFFER_SIZE;
+  max_iobuffer_size = buffer_size_to_index(config_max_iobuffer_size, DEFAULT_BUFFER_SIZES - 1);
+  if (default_small_iobuffer_size > max_iobuffer_size)
+    default_small_iobuffer_size = max_iobuffer_size;
+  if (default_large_iobuffer_size > max_iobuffer_size)
+    default_large_iobuffer_size = max_iobuffer_size;
+  init_buffer_allocators();
+
+  // initialize the event and net processor
+  //
+  size_t stacksize;
+
+  REC_ReadConfigInteger(stacksize, "proxy.config.thread.default.stacksize");
+  eventProcessor.start(ink_number_of_processors(), stacksize);
+  ink_net_init(makeModuleVersion(1, 0, PRIVATE_MODULE_HEADER));
+  netProcessor.start(0, stacksize);
+  Machine::init();
+
+  Log::init(Log::NO_REMOTE_MANAGEMENT | Log::STANDALONE_COLLATOR);
+
+  // we're off to the races ...
+  //
+  Note("-- SAC running --");
+  this_thread()->execute();
+}
diff --git a/proxy/shared/DiagsConfig.cc b/proxy/shared/DiagsConfig.cc
new file mode 100644
index 00000000..d161ebcb
--- /dev/null
+++ b/proxy/shared/DiagsConfig.cc
@@ -0,0 +1,401 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "libts.h"
+#include "I_Layout.h"
+#include "DiagsConfig.h"
+#include "P_RecCore.h"
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void reconfigure_diags()
+//
+//      This function extracts the current diags configuration settings from
+//      records.config, and rebuilds the Diags data structures.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+
+
+void
+DiagsConfig::reconfigure_diags()
+{
+  int i, e;
+  char *p, *dt, *at;
+  DiagsConfigState c;
+  bool found, all_found;
+
+  static struct
+  {
+    const char *config_name;
+    DiagsLevel level;
+  } output_records[] = {
+    {
+    "proxy.config.diags.output.diag", DL_Diag}, {
+    "proxy.config.diags.output.debug", DL_Debug}, {
+    "proxy.config.diags.output.status", DL_Status}, {
+    "proxy.config.diags.output.note", DL_Note}, {
+    "proxy.config.diags.output.warning", DL_Warning}, {
+    "proxy.config.diags.output.error", DL_Error}, {
+    "proxy.config.diags.output.fatal", DL_Fatal}, {
+    "proxy.config.diags.output.alert", DL_Alert}, {
+    "proxy.config.diags.output.emergency", DL_Emergency}, {
+    NULL, DL_Undefined}
+  };
+
+  if (!callbacks_established) {
+    register_diags_callbacks();
+  }
+  ////////////////////////////////////////////
+  // extract relevant records.config values //
+  ////////////////////////////////////////////
+
+  all_found = true;
+
+  // initial value set to 0 or 1 based on command line tags
+  c.enabled[DiagsTagType_Debug] = (diags->base_debug_tags != NULL);
+  c.enabled[DiagsTagType_Action] = (diags->base_action_tags != NULL);
+
+  // enabled if records.config set
+
+  e = (int) REC_readInteger("proxy.config.diags.debug.enabled", &found);
+  if (e && found)
+    c.enabled[DiagsTagType_Debug] = 1;  // implement OR logic
+  all_found = all_found && found;
+
+  e = (int) REC_readInteger("proxy.config.diags.action.enabled", &found);
+  if (e && found)
+    c.enabled[DiagsTagType_Action] = 1; // implement OR logic
+  all_found = all_found && found;
+
+  e = (int) REC_readInteger("proxy.config.diags.show_location", &found);
+  diags->show_location = ((e && found) ? 1 : 0);
+  all_found = all_found && found;
+
+  // read output routing values
+  for (i = 0;; i++) {
+    const char *record_name = output_records[i].config_name;
+    DiagsLevel l = output_records[i].level;
+
+    if (!record_name)
+      break;
+    p = REC_readString(record_name, &found);
+    all_found = all_found && found;
+    if (found) {
+      parse_output_string(p, &(c.outputs[l]));
+      ats_free(p);
+    } else {
+      diags->print(NULL, DTA(DL_Error), "can't find config variable '%s'\n", record_name);
+    }
+  }
+
+  p = REC_readString("proxy.config.diags.debug.tags", &found);
+  dt = (found ? p : NULL);      // NOTE: needs to be freed
+  all_found = all_found && found;
+
+  p = REC_readString("proxy.config.diags.action.tags", &found);
+  at = (found ? p : NULL);      // NOTE: needs to be freed
+  all_found = all_found && found;
+
+  ///////////////////////////////////////////////////////////////////
+  // if couldn't read all values, return without changing config,  //
+  // otherwise rebuild taglists and change the diags config values //
+  ///////////////////////////////////////////////////////////////////
+
+  if (!all_found) {
+    diags->print(NULL, DTA(DL_Error), "couldn't fetch all proxy.config.diags values");
+  } else {
+    //////////////////////////////
+    // clear out old tag tables //
+    //////////////////////////////
+
+    diags->deactivate_all(DiagsTagType_Debug);
+    diags->deactivate_all(DiagsTagType_Action);
+
+    //////////////////////////////////////////////////////////////////////
+    // add new tag tables from records.config or command line overrides //
+    //////////////////////////////////////////////////////////////////////
+
+    diags->activate_taglist((diags->base_debug_tags ? diags->base_debug_tags : dt), DiagsTagType_Debug);
+    diags->activate_taglist((diags->base_action_tags ? diags->base_action_tags : at), DiagsTagType_Action);
+
+    ////////////////////////////////////
+    // change the diags config values //
+    ////////////////////////////////////
+#if !defined(__GNUC__)
+    diags->config = c;
+#else
+    memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+    diags->print(NULL, DTA(DL_Note), "updated diags config");
+  }
+
+  ////////////////////////////////////
+  // free the record.config strings //
+  ////////////////////////////////////
+  ats_free(dt);
+  ats_free(at);
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      static void *diags_config_callback(void *opaque_token, void *data)
+//
+//      This is the records.config registration callback that is called
+//      when any diags value is changed.  Each time a diags value changes
+//      the entire diags state is reconfigured.
+//
+//////////////////////////////////////////////////////////////////////////////
+static int
+diags_config_callback(const char * /* name ATS_UNUSED */, RecDataT /* data_type ATS_UNUSED */,
+                      RecData /* data ATS_UNUSED */, void *opaque_token)
+{
+  DiagsConfig *diagsConfig;
+
+  diagsConfig = (DiagsConfig *) opaque_token;
+  ink_assert(diags->magic == DIAGS_MAGIC);
+  diagsConfig->reconfigure_diags();
+  return (0);
+}
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void Diags::parse_output_string(char *s, DiagsModeOutput *o)
+//
+//      This routine converts a diags outpur routing string <s> to the
+//      internal DiagsModeOutput structure.  Currently there are 4 possible
+//      routing destinations:
+//              O  stdout
+//              E  stderr
+//              S  syslog
+//              L  diags.log
+//
+//////////////////////////////////////////////////////////////////////////////
+
+void
+DiagsConfig::parse_output_string(char *s, DiagsModeOutput * o)
+{
+  o->to_stdout = (s && strchr(s, 'O'));
+  o->to_stderr = (s && strchr(s, 'E'));
+  o->to_syslog = (s && strchr(s, 'S'));
+  o->to_diagslog = (s && strchr(s, 'L'));
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void Diags::config_norecords()
+//
+//      Builds the Diags data structures based on the command line values
+//        it does not use any of the records based config variables
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+DiagsConfig::config_diags_norecords()
+{
+  DiagsConfigState c;
+
+  //////////////////////////////
+  // clear out old tag tables //
+  //////////////////////////////
+  diags->deactivate_all(DiagsTagType_Debug);
+  diags->deactivate_all(DiagsTagType_Action);
+
+  //////////////////////////////////////////////////////////////////////
+  // add new tag tables from command line overrides only              //
+  //////////////////////////////////////////////////////////////////////
+
+  if (diags->base_debug_tags) {
+    diags->activate_taglist(diags->base_debug_tags, DiagsTagType_Debug);
+    c.enabled[DiagsTagType_Debug] = 1;
+  } else {
+    c.enabled[DiagsTagType_Debug] = 0;
+  }
+
+  if (diags->base_action_tags) {
+    diags->activate_taglist(diags->base_action_tags, DiagsTagType_Action);
+    c.enabled[DiagsTagType_Action] = 1;
+  } else {
+    c.enabled[DiagsTagType_Action] = 0;
+  }
+
+#if !defined(__GNUC__)
+  diags->config = c;
+#else
+  memcpy(((void *) &diags->config), ((void *) &c), sizeof(DiagsConfigState));
+#endif
+}
+
+void
+DiagsConfig::RegisterDiagConfig()
+{
+  RecRegisterConfigInt(RECT_CONFIG, "proxy.config.diags.debug.enabled", 0, RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.debug.tags", "", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigInt(RECT_CONFIG, "proxy.config.diags.action.enabled", 0, RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.action.tags", "", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigInt(RECT_CONFIG, "proxy.config.diags.show_location", 0, RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.diag", "L", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.debug", "L", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.status", "L", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.note", "L", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.warning", "L", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.error", "SL", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.fatal", "SL", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.alert", "L", RECU_NULL, RECC_NULL, NULL);
+  RecRegisterConfigString(RECT_CONFIG, "proxy.config.diags.output.emergency", "SL", RECU_NULL, RECC_NULL, NULL);
+}
+
+
+DiagsConfig::DiagsConfig(const char * filename, const char * tags, const char * actions, bool use_records)
+{
+  char diags_logpath[PATH_NAME_MAX + 1];
+  xptr<char> logpath;
+
+  callbacks_established = false;
+  diags_log_fp = (FILE *) NULL;
+  diags = NULL;
+
+  ////////////////////////////////////////////////////////////////////
+  //  If we aren't using the manager records for configuation       //
+  //   just build the tables based on command line parameters and   //
+  //   exit                                                         //
+  ////////////////////////////////////////////////////////////////////
+
+  if (!use_records) {
+    diags = new Diags(tags, actions, NULL);
+    config_diags_norecords();
+    return;
+  }
+
+  // Open the diagnostics log. If proxy.config.log.logfile_dir is set use that, otherwise fall
+  // back to the configured log directory.
+
+  logpath = RecConfigReadLogDir();
+  if (access(logpath, W_OK | R_OK) == -1) {
+    fprintf(stderr, "unable to access log directory '%s': %d, %s\n",
+            (const char *)logpath, errno, strerror(errno));
+    fprintf(stderr, "please set 'proxy.config.log.logfile_dir'\n");
+    _exit(1);
+  }
+
+  ink_filepath_make(diags_logpath, sizeof(diags_logpath), logpath, filename);
+
+  // open write append
+  // diags_log_fp = fopen(diags_logpath,"w");
+  diags_log_fp = fopen(diags_logpath, "a+");
+  if (diags_log_fp) {
+    int status;
+    status = setvbuf(diags_log_fp, NULL, _IOLBF, 512);
+    if (status != 0) {
+      fclose(diags_log_fp);
+      diags_log_fp = NULL;
+    }
+  }
+
+  diags = new Diags(tags, actions, diags_log_fp);
+  if (diags_log_fp == NULL) {
+
+    diags->print(NULL, DTA(DL_Warning),
+                 "couldn't open diags log file '%s', " "will not log to this file", diags_logpath);
+  }
+  diags->print(NULL, DTA(DL_Status), "opened %s", diags_logpath);
+
+  register_diags_callbacks();
+
+  reconfigure_diags();
+
+}
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+//      void DiagsConfig::register_diags_callbacks()
+//
+//      set up management callbacks to update diags on every change ---   //
+//      right now, this system kind of sucks, we rebuild the tag tables //
+//      from scratch for *every* proxy.config.diags value that changed; //
+//      dgourley is looking into changing the management API to provide //
+//      a callback each time records.config changed, possibly better.   //
+//
+//////////////////////////////////////////////////////////////////////////////
+void
+DiagsConfig::register_diags_callbacks()
+{
+
+  static const char *config_record_names[] = {
+    "proxy.config.diags.debug.enabled",
+    "proxy.config.diags.debug.tags",
+    "proxy.config.diags.action.enabled",
+    "proxy.config.diags.action.tags",
+    "proxy.config.diags.show_location",
+    "proxy.config.diags.output.diag",
+    "proxy.config.diags.output.debug",
+    "proxy.config.diags.output.status",
+    "proxy.config.diags.output.note",
+    "proxy.config.diags.output.warning",
+    "proxy.config.diags.output.error",
+    "proxy.config.diags.output.fatal",
+    "proxy.config.diags.output.alert",
+    "proxy.config.diags.output.emergency",
+    NULL
+  };
+
+  bool total_status = true;
+  bool status;
+  int i;
+  void *o = (void *) this;
+
+  // set triggers to call same callback for any diag config change
+  for (i = 0; config_record_names[i] != NULL; i++) {
+    status = (REC_RegisterConfigUpdateFunc(config_record_names[i], diags_config_callback, o) == REC_ERR_OKAY);
+    if (!status) {
+      diags->print(NULL, DTA(DL_Warning),
+                   "couldn't register variable '%s', is records.config up to date?", config_record_names[i]);
+    }
+    total_status = total_status && status;
+  }
+
+  if (total_status == false) {
+    diags->print(NULL, DTA(DL_Error), "couldn't setup all diags callbacks, diagnostics may misbehave");
+    callbacks_established = false;
+  } else {
+    callbacks_established = true;
+  }
+
+}
+
+DiagsConfig::~DiagsConfig()
+{
+  if (diags_log_fp) {
+    fclose(diags_log_fp);
+    diags_log_fp = NULL;
+  }
+  delete diags;
+}
diff --git a/proxy/shared/DiagsConfig.h b/proxy/shared/DiagsConfig.h
new file mode 100644
index 00000000..730d1340
--- /dev/null
+++ b/proxy/shared/DiagsConfig.h
@@ -0,0 +1,49 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __DIAGSCONFIG_H__
+#define __DIAGSCONFIG_H__
+#include "Diags.h"
+
+struct DiagsConfig
+{
+
+  void reconfigure_diags();
+  void config_diags_norecords();
+  void parse_output_string(char *s, DiagsModeOutput * o);
+  void RegisterDiagConfig();
+  void register_diags_callbacks();
+
+  DiagsConfig(const char * filename, const char * tags, const char * actions, bool use_records = true);
+   ~DiagsConfig();
+
+private:
+  bool callbacks_established;
+  FILE *diags_log_fp;
+
+public:
+  Diags *diags;
+};
+
+
+#endif
diff --git a/proxy/shared/Error.cc b/proxy/shared/Error.cc
new file mode 100644
index 00000000..289af89d
--- /dev/null
+++ b/proxy/shared/Error.cc
@@ -0,0 +1,109 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Error.cc
+
+  This file contains code to manipulate Error
+
+
+ ****************************************************************************/
+#include "proxy/Main.h"
+#include "Error.h"
+#include <time.h>
+#include "ink_platform.h"
+
+ErrorClass::~ErrorClass()
+{
+}
+
+void
+ErrorClass::operator() (const char *aformat_string, ...)
+{
+  va_list aap;
+  va_start(aap, aformat_string);
+  format_string = aformat_string;
+  raise(aap);
+  va_end(aap);
+  delete this;
+}
+
+void
+ErrorClass::raise(va_list ap, const char * /* prefix ATS_UNUSED */)
+{
+  SrcLoc loc(filename, function_name, line_number);
+  diags->print_va(NULL, DL_Fatal, &loc, format_string, ap);
+}
+
+// Request Fatal
+// Abort the current request, cleanup all related resources.
+//
+void
+RequestFatalClass::raise(va_list ap, const char *prefix)
+{
+  ErrorClass::raise(ap, prefix ? prefix : "REQUEST FATAL");
+  ink_assert(!"RequestFatal");
+}
+
+// Thread Fatal
+// Abort the current thread, restart within processor
+//
+void
+ThreadFatalClass::raise(va_list ap, const char *prefix)
+{
+  ErrorClass::raise(ap, prefix ? prefix : "THREAD FATAL");
+  ink_assert(!"ThreadFatal");
+  ink_thread_exit(0);
+}
+
+// Processor Fatal
+// Kill and restart the processor
+//
+void
+ProcessorFatalClass::raise(va_list ap, const char *prefix)
+{
+  ErrorClass::raise(ap, prefix ? prefix : "PROCESSOR FATAL");
+  ink_assert(!"ProcessorFatal");
+}
+
+// Process Fatal
+// Kill and restart the process
+//
+void
+ProcessFatalClass::raise(va_list ap, const char *prefix)
+{
+  ErrorClass::raise(ap, prefix ? prefix : "PROCESS FATAL");
+  //exit(1);
+  ink_assert(!"ProcessFatal");
+}
+
+// Machine Fatal
+// Kill and restart the set of processors on this machine
+//
+void
+MachineFatalClass::raise(va_list ap, const char *prefix)
+{
+  ErrorClass::raise(ap, prefix ? prefix : "MACHINE FATAL");
+  exit(2);
+}
diff --git a/proxy/shared/Error.h b/proxy/shared/Error.h
new file mode 100644
index 00000000..2ab1ec78
--- /dev/null
+++ b/proxy/shared/Error.h
@@ -0,0 +1,173 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/****************************************************************************
+
+  Error.h
+
+  The objective of the error system is to enable graceful recovery
+  from all errors.
+
+
+ ****************************************************************************/
+
+#if !defined _Error_h_
+#define	_Error_h_
+
+#include "libts.h"
+#include "Diags.h"
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Base Error class (abstract)
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct ErrorClass
+{
+  const char *filename;
+  int line_number;
+  const char *function_name;
+
+  const char *format_string;
+
+    ErrorClass(const char *afile, int aline, const char *afunction)
+  : filename(afile), line_number(aline), function_name(afunction), format_string(NULL)
+  {
+  }
+
+  void operator() (const char *aformat_string ...);
+
+  virtual ~ ErrorClass();
+  virtual void raise(va_list ap, const char *prefix = NULL);
+};
+
+#if !defined (__GNUC__)
+#define __FUNCTION__ NULL
+#endif
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Fatal Messages (abstract)
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct FatalClass: public ErrorClass
+{
+  FatalClass(const char *afile, int aline, const char *afunction)
+  : ErrorClass(afile, aline, afunction)
+  {
+  }
+};
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// RequestFatal Messages
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct RequestFatalClass: public FatalClass
+{
+  virtual void raise(va_list ap, const char *prefix = NULL);
+    RequestFatalClass(const char *afile, int aline, const char *afunction)
+  : FatalClass(afile, aline, afunction)
+  {
+  }
+};
+
+#define RequestFatal (*(new RequestFatalClass(__FILE__,__LINE__,__FUNCTION__)))
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// ThreadFatal Messages
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct ThreadFatalClass: public FatalClass
+{
+  virtual void raise(va_list ap, const char *prefix = NULL);
+    ThreadFatalClass(const char *afile, int aline, const char *afunction)
+  : FatalClass(afile, aline, afunction)
+  {
+  }
+};
+
+#define ThreadFatal (*(new ThreadFatalClass(__FILE__,__LINE__,__FUNCTION__)))
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// ProcessorFatal Messages
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct ProcessorFatalClass: public FatalClass
+{
+  virtual void raise(va_list ap, const char *prefix = NULL);
+    ProcessorFatalClass(const char *afile, int aline, const char *afunction)
+  : FatalClass(afile, aline, afunction)
+  {
+  }
+};
+
+#define ProcessorFatal \
+(*(new ProcessorFatalClass(__FILE__,__LINE__,__FUNCTION__)))
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// ProcessFatal Messages
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct ProcessFatalClass: public FatalClass
+{
+  virtual void raise(va_list ap, const char *prefix = NULL);
+    ProcessFatalClass(const char *afile, int aline, const char *afunction)
+  : FatalClass(afile, aline, afunction)
+  {
+  }
+};
+
+#define ProcessFatal \
+(*(new ProcessFatalClass(__FILE__,__LINE__,__FUNCTION__)))
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// MachineFatal Messages
+//
+//////////////////////////////////////////////////////////////////////////////
+
+struct MachineFatalClass: public FatalClass
+{
+  virtual void raise(va_list ap, const char *prefix = NULL);
+    MachineFatalClass(const char *afile, int aline, const char *afunction)
+  : FatalClass(afile, aline, afunction)
+  {
+  }
+};
+
+#define MachineFatal \
+(*(new MachineFatalClass(__FILE__,__LINE__,__FUNCTION__)))
+
+#endif  /*_Error_h_*/
diff --git a/proxy/shared/InkXml.cc b/proxy/shared/InkXml.cc
new file mode 100644
index 00000000..ed4c13e8
--- /dev/null
+++ b/proxy/shared/InkXml.cc
@@ -0,0 +1,485 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/***************************************************************************
+ InkXml.cc
+
+
+ ***************************************************************************/
+#include "libts.h"
+
+#include "InkXml.h"
+
+/*-------------------------------------------------------------------------
+  InkXmlAttr
+  -------------------------------------------------------------------------*/
+
+InkXmlAttr::InkXmlAttr(const char *tag, const char *value)
+{
+  m_tag = ats_strdup(tag);
+  m_value = ats_strdup(value);
+}
+
+InkXmlAttr::~InkXmlAttr()
+{
+  ats_free(m_tag);
+  ats_free(m_value);
+}
+
+void
+InkXmlAttr::display(FILE * fd)
+{
+  fprintf(fd, "    <%s,%s>\n", m_tag, m_value);
+}
+
+/*-------------------------------------------------------------------------
+  InkXmlObject
+  -------------------------------------------------------------------------*/
+
+InkXmlObject::InkXmlObject(const char *object_name, bool dup_attrs_allowed)
+{
+  m_object_name = ats_strdup(object_name);
+  m_dup_attrs_allowed = dup_attrs_allowed;
+}
+
+InkXmlObject::~InkXmlObject()
+{
+  ats_free(m_object_name);
+  clear_tags();
+}
+
+void
+InkXmlObject::clear_tags()
+{
+  InkXmlAttr *attr;
+  while ((attr = m_tags.dequeue())) {
+    delete attr;
+  }
+}
+
+int
+InkXmlObject::add_tag(const char *tag, const char *value)
+{
+  ink_assert(tag != NULL);
+  ink_assert(value != NULL);
+
+  InkXmlAttr *attr = new InkXmlAttr(tag, value);
+  return add_attr(attr);
+}
+
+int
+InkXmlObject::add_attr(InkXmlAttr * attr)
+{
+  ink_assert(attr != NULL);
+
+  if (!m_dup_attrs_allowed) {
+    for (InkXmlAttr * a = first(); a; a = next(a)) {
+      if (!strcmp(a->tag(), attr->tag())) {
+        Debug("xml", "tag %s already exists & dups not allowed", attr->tag());
+        return -1;
+      }
+    }
+  }
+  m_tags.enqueue(attr);
+  return 0;
+}
+
+char *
+InkXmlObject::tag_value(const char *tag_name)
+{
+  ink_assert(tag_name != NULL);
+
+  for (InkXmlAttr * a = first(); a; a = next(a)) {
+    if (!strcmp(a->tag(), tag_name)) {
+      return a->value();
+    }
+  }
+  return NULL;
+}
+
+void
+InkXmlObject::display(FILE * fd)
+{
+  fprintf(fd, "<%s>\n", m_object_name);
+  for (InkXmlAttr * a = first(); a; a = next(a)) {
+    a->display(fd);
+  }
+}
+
+/*-------------------------------------------------------------------------
+  InkXmlConfigFile
+  -------------------------------------------------------------------------*/
+
+InkXmlConfigFile::InkXmlConfigFile(const char *config_file):
+m_line(0),
+m_col(0)
+{
+  m_config_file = ats_strdup(config_file);
+}
+
+InkXmlConfigFile::~InkXmlConfigFile()
+{
+  ats_free(m_config_file);
+  clear_objects();
+}
+
+void
+InkXmlConfigFile::clear_objects()
+{
+  InkXmlObject *obj;
+  while ((obj = m_objects.dequeue())) {
+    delete obj;
+  }
+}
+
+/*                                                                  */
+int
+InkXmlConfigFile::parse(int fd)
+{
+  ink_assert(fd >= 0);
+  Debug("log", "Parsing XML config info from memory..");
+
+  m_line = 1;
+  m_col = 0;
+
+  InkXmlObject *obj;
+  while ((obj = get_next_xml_object(fd)) != NULL) {
+    Debug("log", "Adding XML object <%s>", obj->object_name());
+    add_object(obj);
+  }
+
+  return 0;
+}
+
+/*                                                                  */
+
+int
+InkXmlConfigFile::parse()
+{
+  ink_assert(m_config_file != NULL);
+  Debug("xml", "Parsing XML config file %s ...", m_config_file);
+
+  int fd =::open(m_config_file, O_RDONLY);
+  if (fd < 0) {
+    Debug("xml", "Error opening %s: %d, %s", m_config_file, fd, strerror(errno));
+    return -1;
+  }
+
+  m_line = 1;
+  m_col = 0;
+
+  InkXmlObject *obj;
+  while ((obj = get_next_xml_object(fd)) != NULL) {
+    Debug("xml", "Adding XML object <%s>", obj->object_name());
+    add_object(obj);
+  }
+
+  ::close(fd);
+  return 0;
+}
+
+InkXmlObject *
+InkXmlConfigFile::find_object(const char *object_name)
+{
+  for (InkXmlObject * obj = first(); obj; obj = next(obj)) {
+    if (!strcmp(object_name, obj->object_name())) {
+      return obj;
+    }
+  }
+  return NULL;
+}
+
+void
+InkXmlConfigFile::display(FILE * fd)
+{
+  size_t i;
+
+  fprintf(fd, "\n");
+  for (i = 0; i < strlen(m_config_file) + 13; i++)
+    fputc('-', fd);
+  fprintf(fd, "\nConfig File: %s\n", m_config_file);
+  for (i = 0; i < strlen(m_config_file) + 13; i++)
+    fputc('-', fd);
+  fprintf(fd, "\n");
+  for (InkXmlObject * obj = first(); obj; obj = next(obj)) {
+    obj->display(fd);
+    fprintf(fd, "\n");
+  }
+}
+
+void
+InkXmlConfigFile::add_object(InkXmlObject * object)
+{
+  ink_assert(object != NULL);
+  m_objects.enqueue(object);
+}
+
+/*-------------------------------------------------------------------------
+  InkXmlConfigFile::get_next_xml_object()
+
+  This routine (and its friends) does the real work of parsing the given
+  open file for the next XML object.
+  -------------------------------------------------------------------------*/
+
+InkXmlObject *
+InkXmlConfigFile::get_next_xml_object(int fd)
+{
+  ink_assert(fd >= 0);
+
+  char token;
+  bool start_object = false;
+
+  while ((token = next_token(fd)) != EOF) {
+    switch (token) {
+
+    case '<':
+      start_object = true;
+      break;
+
+    case '!':
+      if (!start_object)
+        return parse_error();
+      if ((token = scan_comment(fd)) == EOF) {
+        return NULL;
+      }
+      Debug("xml", "comment scanned");
+      start_object = false;
+      break;
+
+    default:
+      if (!start_object)
+        return parse_error();
+      return scan_object(fd, token);
+    }
+  }
+  return NULL;
+}
+
+InkXmlObject *
+InkXmlConfigFile::parse_error()
+{
+  Debug("xml", "Invalid XML tag, line %u, col %u", m_line, m_col);
+  return NULL;
+}
+
+#define BAD_ATTR ((InkXmlAttr*)1)
+
+InkXmlObject *
+InkXmlConfigFile::scan_object(int fd, char token)
+{
+  // this routine is called just after the first '<' is read for a new
+  // object.
+
+  const int max_ident_len = 2048;
+  char ident[max_ident_len];
+  int ident_len = 0;
+
+  while (token != '>' && ident_len < max_ident_len) {
+    ident[ident_len++] = token;
+    token = next_token(fd);
+    if (token == EOF)
+      return parse_error();
+  }
+  if (!ident_len || ident_len >= max_ident_len) {
+    return parse_error();
+  }
+
+  ident[ident_len] = 0;
+  InkXmlObject *obj = new InkXmlObject(ident);
+  ink_assert(obj != NULL);
+
+  InkXmlAttr *attr;
+  while ((attr = scan_attr(fd, ident)) != NULL) {
+    if (attr == BAD_ATTR) {
+      delete obj;
+      return parse_error();
+    }
+    obj->add_attr(attr);
+  }
+
+  return obj;
+}
+
+InkXmlAttr *
+InkXmlConfigFile::scan_attr(int fd, const char *id)
+{
+  // this routine is called after the object identifier has been scannedm
+  // and should attempt to scan for the next attribute set.  When we see
+  // the end of the object (closing identifier), we scan it and return
+  // NULL for the attribute, signalling that there are no more
+  // attributes.
+
+  char token, prev, next;
+  const int buf_size = 2048;
+  char name[buf_size];
+  char value[buf_size];
+  char ident[buf_size];
+  char *write_to = NULL;
+  int write_len = 0;
+  bool start_attr = false;
+  bool in_quotes = false;
+  InkXmlAttr *attr = NULL;
+
+  prev = next = 0;
+  while ((token = next_token(fd, !in_quotes)) != EOF) {
+    switch (token) {
+    case '<':
+      if (in_quotes && write_to) {
+        if (write_len >= buf_size)
+          return BAD_ATTR;
+        write_to[write_len++] = token;
+        break;
+      }
+      start_attr = true;
+      write_to = name;
+      write_len = 0;
+      break;
+
+    case '=':
+      if (in_quotes && write_to) {
+        if (write_len >= buf_size)
+          return BAD_ATTR;
+        write_to[write_len++] = token;
+        break;
+      }
+      if (!start_attr)
+        return BAD_ATTR;
+      write_to[write_len] = 0;
+      write_to = value;
+      write_len = 0;
+      break;
+
+    case '"':
+      if (in_quotes) {
+        if (prev == '\\') {
+          // escape the quote, just replace the backslash
+          // with it
+          write_to[write_len - 1] = token;
+          break;
+        }
+      }
+      in_quotes = !in_quotes;
+      break;
+
+    case '/':
+      if (in_quotes && write_to) {
+        if (write_len >= buf_size)
+          return BAD_ATTR;
+        write_to[write_len++] = token;
+        break;
+      }
+      if (!start_attr)
+        return BAD_ATTR;
+      if (prev == '<') {
+        write_len = 0;
+        token = next_token(fd, !in_quotes);
+        while (token != '>' && write_len < buf_size) {
+          ident[write_len++] = token;
+          token = next_token(fd, !in_quotes);
+          if (token == EOF)
+            return BAD_ATTR;
+        }
+        if (!write_len || write_len >= buf_size) {
+          return BAD_ATTR;
+        }
+        ident[write_len] = 0;
+        if (strcmp(ident, id) != 0)
+          return BAD_ATTR;
+        return NULL;
+      }
+
+      next = next_token(fd, !in_quotes);
+      if (next != '>')
+        return BAD_ATTR;
+      write_to[write_len] = 0;
+      attr = new InkXmlAttr(name, value);
+      ink_assert(attr != NULL);
+      return attr;
+
+    case '>':
+      if (in_quotes && write_to) {
+        if (write_len >= buf_size)
+          return BAD_ATTR;
+        write_to[write_len++] = token;
+        break;
+      }
+      // seen at this point, this is an error, probably becase
+      // the person forgot the trailing '/'.
+      return BAD_ATTR;
+
+    default:
+      if (!start_attr)
+        return BAD_ATTR;
+      if (write_len >= buf_size)
+        return BAD_ATTR;
+      write_to[write_len++] = token;
+      break;
+    }
+    prev = token;
+  }
+  return BAD_ATTR;
+}
+
+char
+InkXmlConfigFile::next_token(int fd, bool eat_whitespace)
+{
+  char ch;
+  while (read(fd, &ch, 1) == 1) {
+    if (ch == '\n') {
+      m_line++;
+      m_col = 0;
+      continue;
+    }
+    m_col++;
+    if (eat_whitespace && ParseRules::is_space(ch))
+      continue;
+    return ch;
+  }
+  return EOF;
+}
+
+char
+InkXmlConfigFile::scan_comment(int fd)
+{
+  // this routine is called when we're just past a "<!" in the file.  we
+  // need to skip until we find the matching '>'.
+
+  int lt_stack = 1;             // we've already seen one '<' character
+  char token;
+  while ((token = next_token(fd)) != EOF) {
+    switch (token) {
+    case '<':
+      lt_stack++;
+      break;
+    case '>':
+      lt_stack--;
+      if (lt_stack == 0) {
+        return token;
+      }
+      break;
+    default:
+      break;
+    }
+  }
+  return EOF;
+}
diff --git a/proxy/shared/InkXml.h b/proxy/shared/InkXml.h
new file mode 100644
index 00000000..5e859dc6
--- /dev/null
+++ b/proxy/shared/InkXml.h
@@ -0,0 +1,236 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+
+
+#ifndef INK_XML_H
+#define INK_XML_H
+
+#include "List.h"
+
+/*-------------------------------------------------------------------------
+  InkXml.h
+
+  This file defines the interface for parsing XML-style config files.  Such
+  a file contains various XML objects, each with tags (or attibutes).  The
+  parser's job is to build a database of these objects that can then be
+  queried later to extract the desired information.
+  -------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------
+  InkXmlAttr
+  -------------------------------------------------------------------------*/
+
+class InkXmlAttr
+{
+public:
+  InkXmlAttr(const char *tag, const char *value);
+  ~InkXmlAttr();
+
+  char *tag() const
+  {
+    return m_tag;
+  }
+  char *value() const
+  {
+    return m_value;
+  }
+  void display(FILE * fd = stdout);
+
+private:
+  char *m_tag;
+  char *m_value;
+
+public:
+  LINK(InkXmlAttr, link);
+
+private:
+  // -- member functions that are not allowed --
+  InkXmlAttr();
+  InkXmlAttr(const InkXmlAttr &);
+  InkXmlAttr & operator=(InkXmlAttr &);
+};
+
+/*-------------------------------------------------------------------------
+  InkXmlObject
+
+  An XmlObject has a name and a set of <tag,value> attributes.
+  -------------------------------------------------------------------------*/
+
+class InkXmlObject
+{
+public:
+  InkXmlObject(const char *object_name, bool dup_attrs_allowed = true);
+  ~InkXmlObject();
+
+  void clear_tags();
+  int add_tag(const char *tag, const char *value);
+  int add_attr(InkXmlAttr * attr);
+  char *tag_value(const char *tag_name);
+  void display(FILE * fd = stdout);
+
+  char *object_name() const
+  {
+    return m_object_name;
+  }
+  InkXmlAttr *first() const
+  {
+    return m_tags.head;
+  }
+  InkXmlAttr *next(InkXmlAttr * here) const
+  {
+    return (here->link).next;
+  }
+
+private:
+  char *m_object_name;
+  bool m_dup_attrs_allowed;
+  Queue<InkXmlAttr> m_tags;
+
+public:
+  LINK(InkXmlObject, link);
+
+private:
+  InkXmlObject * get_next_xml_object(int fd);
+
+private:
+  // -- member functions that are not allowed --
+  InkXmlObject();
+  InkXmlObject(const InkXmlObject &);
+  InkXmlObject & operator=(InkXmlObject &);
+};
+
+/*-------------------------------------------------------------------------
+  InkXmlConfigFile
+
+  This object is used to parse an XML-style config file and create a
+  database of resulting XML objects.
+  -------------------------------------------------------------------------*/
+
+class InkXmlConfigFile
+{
+
+public:
+  InkXmlConfigFile(const char *config_file);
+  ~InkXmlConfigFile();
+
+  void clear_objects();
+  /*                                                                     */
+  int parse(int fd);
+  /*                                                                     */
+  int parse();
+  void add_object(InkXmlObject * object);
+  InkXmlObject *find_object(const char *object_name);
+  void display(FILE * fd = stdout);
+
+  InkXmlObject *first()
+  {
+    return m_objects.head;
+  }
+  InkXmlObject *next(InkXmlObject * here)
+  {
+    return (here->link).next;
+  }
+
+private:
+  InkXmlObject * get_next_xml_object(int fd);
+  InkXmlObject *parse_error();
+  InkXmlObject *scan_object(int fd, char token);
+  InkXmlAttr *scan_attr(int fd, const char *ident);
+  char next_token(int fd, bool eat_whitespace = true);
+  char scan_comment(int fd);
+
+private:
+  char *m_config_file;
+  unsigned m_line;
+  unsigned m_col;
+  Queue<InkXmlObject> m_objects;
+
+private:
+  // -- member functions that are not allowed --
+  InkXmlConfigFile();
+  InkXmlConfigFile(const InkXmlConfigFile &);
+  InkXmlConfigFile & operator=(InkXmlConfigFile &);
+};
+
+class NameList
+{
+private:
+  struct ListElem
+  {
+    char *m_name;
+    LINK(ListElem, link);
+
+    ListElem(char *name):m_name(name)
+    { }
+  };
+
+public:
+  NameList():m_count(0) {
+  }
+  ~NameList() {
+    clear();
+  }
+
+  void enqueue(char *name)
+  {
+    ListElem *e = new ListElem(name);
+
+    m_list.enqueue(e);
+    m_count++;
+  }
+
+  char *dequeue()
+  {
+    char *ret = NULL;
+    ListElem *e = m_list.dequeue();
+
+    if (e) {
+      ret = e->m_name;
+      delete e;
+      m_count--;
+    }
+    return ret;
+  }
+
+  void clear()
+  {
+    ListElem *e;
+
+    while ((e = m_list.dequeue()) != NULL) {
+      delete e;
+    }
+    m_count = 0;
+  }
+
+  unsigned count()
+  {
+    return m_count;
+  }
+
+private:
+  Queue<ListElem> m_list;
+  unsigned m_count;
+};
+
+#endif /* INK_XML_H */
diff --git a/proxy/shared/Makefile.am b/proxy/shared/Makefile.am
new file mode 100644
index 00000000..2db77e73
--- /dev/null
+++ b/proxy/shared/Makefile.am
@@ -0,0 +1,61 @@
+# proxy Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Note that hdrs is targeted from ../Makefile.am
+noinst_LIBRARIES = \
+  liberror.a \
+  libdiagsconfig.a \
+  libUglyLogStubs.a \
+  libsignals.a \
+  libxml.a
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/mgmt/api \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+liberror_a_SOURCES = \
+  Error.cc
+
+libdiagsconfig_a_SOURCES = \
+  DiagsConfig.cc
+
+libUglyLogStubs_a_SOURCES = \
+  UglyLogStubs.cc
+
+libxml_a_SOURCES = \
+  InkXml.cc \
+  InkXml.h
+
+libsignals_a_SOURCES = \
+  signals.cc \
+  signals.h
diff --git a/proxy/shared/Makefile.in b/proxy/shared/Makefile.in
new file mode 100644
index 00000000..47a5797b
--- /dev/null
+++ b/proxy/shared/Makefile.in
@@ -0,0 +1,943 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# proxy Makefile.am
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
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+      ?) ;; \
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+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
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+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+EXEEXT = @EXEEXT@
+EXPAT_LDFLAGS = @EXPAT_LDFLAGS@
+EXTRA_CC_LDFLAGS = @EXTRA_CC_LDFLAGS@
+EXTRA_CXX_LDFLAGS = @EXTRA_CXX_LDFLAGS@
+FGREP = @FGREP@
+FLEX_CFLAGS = @FLEX_CFLAGS@
+GEOIP_LIBS = @GEOIP_LIBS@
+GREP = @GREP@
+HOST_GUESS = @HOST_GUESS@
+HWLOC_CFLAGS = @HWLOC_CFLAGS@
+HWLOC_LIBS = @HWLOC_LIBS@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LEX = @LEX@
+LEXLIB = @LEXLIB@
+LEX_OUTPUT_ROOT = @LEX_OUTPUT_ROOT@
+LIBCAP = @LIBCAP@
+LIBCRYPT = @LIBCRYPT@
+LIBDEMANGLE = @LIBDEMANGLE@
+LIBEXPAT = @LIBEXPAT@
+LIBLZMA = @LIBLZMA@
+LIBOBJS = @LIBOBJS@
+LIBPCRE = @LIBPCRE@
+LIBPROFILER = @LIBPROFILER@
+LIBREADLINE = @LIBREADLINE@
+LIBRESOLV = @LIBRESOLV@
+LIBS = @LIBS@
+LIBTCL = @LIBTCL@
+LIBTOOL = @LIBTOOL@
+LIBTOOL_LINK_FLAGS = @LIBTOOL_LINK_FLAGS@
+LIBZ = @LIBZ@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LUA_LDFLAGS = @LUA_LDFLAGS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MGMT_DEFS = @MGMT_DEFS@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_INCLUDES = @OPENSSL_INCLUDES@
+OPENSSL_LDFLAGS = @OPENSSL_LDFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PCRE_CONFIG = @PCRE_CONFIG@
+PERL = @PERL@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PYTHON = @PYTHON@
+PYTHON_EXEC_PREFIX = @PYTHON_EXEC_PREFIX@
+PYTHON_PLATFORM = @PYTHON_PLATFORM@
+PYTHON_PREFIX = @PYTHON_PREFIX@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RM = @RM@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHARED_CFLAGS = @SHARED_CFLAGS@
+SHARED_CXXFLAGS = @SHARED_CXXFLAGS@
+SHARED_CXXLINKFLAGS = @SHARED_CXXLINKFLAGS@
+SHARED_LDFLAGS = @SHARED_LDFLAGS@
+SHELL = @SHELL@
+SPDYLAY_CFLAGS = @SPDYLAY_CFLAGS@
+SPDYLAY_LIBS = @SPDYLAY_LIBS@
+SPHINXBUILD = @SPHINXBUILD@
+SPHINXOPTS = @SPHINXOPTS@
+STRIP = @STRIP@
+TCL_BIN_DIR = @TCL_BIN_DIR@
+TCL_LIB_FILE = @TCL_LIB_FILE@
+TCL_LIB_FLAG = @TCL_LIB_FLAG@
+TCL_LIB_SPEC = @TCL_LIB_SPEC@
+TCL_PATCH_LEVEL = @TCL_PATCH_LEVEL@
+TCL_SRC_DIR = @TCL_SRC_DIR@
+TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
+TCL_STUB_LIB_FLAG = @TCL_STUB_LIB_FLAG@
+TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
+TCL_VERSION = @TCL_VERSION@
+TFW_PACKAGE_SUFFIX = @TFW_PACKAGE_SUFFIX@
+TS_LIBTOOL_VERSION = @TS_LIBTOOL_VERSION@
+TS_LUAJIT_LDFLAGS = @TS_LUAJIT_LDFLAGS@
+TS_MAN1_MANPAGES = @TS_MAN1_MANPAGES@
+TS_MAN3_MANPAGES = @TS_MAN3_MANPAGES@
+TS_MAN5_MANPAGES = @TS_MAN5_MANPAGES@
+TS_MAN8_MANPAGES = @TS_MAN8_MANPAGES@
+TS_VERSION_MAJOR = @TS_VERSION_MAJOR@
+TS_VERSION_MICRO = @TS_VERSION_MICRO@
+TS_VERSION_MINOR = @TS_VERSION_MINOR@
+TS_VERSION_NUMBER = @TS_VERSION_NUMBER@
+TS_VERSION_STRING = @TS_VERSION_STRING@
+VERSION = @VERSION@
+YACC = @YACC@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+ac_cv_sizeof_voidp = @ac_cv_sizeof_voidp@
+allocah = @allocah@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+arpa_ineth = @arpa_ineth@
+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+
+# Note that hdrs is targeted from ../Makefile.am
+noinst_LIBRARIES = \
+  liberror.a \
+  libdiagsconfig.a \
+  libUglyLogStubs.a \
+  libsignals.a \
+  libxml.a
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/web2 \
+  -I$(top_srcdir)/mgmt/api \
+  -I$(top_srcdir)/mgmt/api/include \
+  -I$(top_srcdir)/mgmt/cluster \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir) \
+  -I$(top_srcdir)/proxy/api/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/http \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/logging \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib
+
+liberror_a_SOURCES = \
+  Error.cc
+
+libdiagsconfig_a_SOURCES = \
+  DiagsConfig.cc
+
+libUglyLogStubs_a_SOURCES = \
+  UglyLogStubs.cc
+
+libxml_a_SOURCES = \
+  InkXml.cc \
+  InkXml.h
+
+libsignals_a_SOURCES = \
+  signals.cc \
+  signals.h
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cc .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign proxy/shared/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign proxy/shared/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+
+libUglyLogStubs.a: $(libUglyLogStubs_a_OBJECTS) $(libUglyLogStubs_a_DEPENDENCIES) $(EXTRA_libUglyLogStubs_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libUglyLogStubs.a
+	$(AM_V_AR)$(libUglyLogStubs_a_AR) libUglyLogStubs.a $(libUglyLogStubs_a_OBJECTS) $(libUglyLogStubs_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libUglyLogStubs.a
+
+libdiagsconfig.a: $(libdiagsconfig_a_OBJECTS) $(libdiagsconfig_a_DEPENDENCIES) $(EXTRA_libdiagsconfig_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libdiagsconfig.a
+	$(AM_V_AR)$(libdiagsconfig_a_AR) libdiagsconfig.a $(libdiagsconfig_a_OBJECTS) $(libdiagsconfig_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libdiagsconfig.a
+
+liberror.a: $(liberror_a_OBJECTS) $(liberror_a_DEPENDENCIES) $(EXTRA_liberror_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f liberror.a
+	$(AM_V_AR)$(liberror_a_AR) liberror.a $(liberror_a_OBJECTS) $(liberror_a_LIBADD)
+	$(AM_V_at)$(RANLIB) liberror.a
+
+libsignals.a: $(libsignals_a_OBJECTS) $(libsignals_a_DEPENDENCIES) $(EXTRA_libsignals_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libsignals.a
+	$(AM_V_AR)$(libsignals_a_AR) libsignals.a $(libsignals_a_OBJECTS) $(libsignals_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libsignals.a
+
+libxml.a: $(libxml_a_OBJECTS) $(libxml_a_DEPENDENCIES) $(EXTRA_libxml_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libxml.a
+	$(AM_V_AR)$(libxml_a_AR) libxml.a $(libxml_a_OBJECTS) $(libxml_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libxml.a
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/DiagsConfig.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Error.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/InkXml.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/UglyLogStubs.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/signals.Po@am__quote@
+
+.cc.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cc.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cc.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LIBRARIES)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLIBRARIES cscopelist-am ctags \
+	ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/proxy/shared/UglyLogStubs.cc b/proxy/shared/UglyLogStubs.cc
new file mode 100644
index 00000000..ad9e38e7
--- /dev/null
+++ b/proxy/shared/UglyLogStubs.cc
@@ -0,0 +1,205 @@
+/** @file
+
+    A brief file description
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+
+
+// This is total BS, because our libraries are riddled with cross dependencies.
+// TODO: Clean up the dependency mess, and get rid of this.
+
+#include "libts.h"
+#include "LogObject.h"
+
+#if defined(solaris)
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include "P_Net.h"
+
+int fds_limit = 8000;
+
+class FakeUDPNetProcessor : public UDPNetProcessor {
+  virtual int start(int, size_t) {
+    ink_release_assert(false);
+    return 0;
+  };
+} fakeUDPNet;
+
+UDPNetProcessor& udpNet = fakeUDPNet;
+
+ClassAllocator<UDPPacketInternal> udpPacketAllocator("udpPacketAllocator");
+
+void
+UDPConnection::Release()
+{
+  ink_release_assert(false);
+}
+
+#include "InkAPIInternal.h"
+ConfigUpdateCbTable *global_config_cbs = NULL;
+
+void
+ConfigUpdateCbTable::invoke(const char * /* name ATS_UNUSED */)
+{
+  ink_release_assert(false);
+}
+
+struct Machine {  static Machine* instance(); };
+Machine* Machine::instance() {
+  ink_release_assert(false);
+  return NULL;
+}
+
+#include "LogCollationAccept.h"
+LogCollationAccept::LogCollationAccept(int port)
+  : Continuation(new_ProxyMutex()),
+    m_port(port),
+    m_pending_event(NULL)
+{
+}
+LogCollationAccept::~LogCollationAccept()
+{
+}
+
+#include "LogCollationClientSM.h"
+LogCollationClientSM::LogCollationClientSM(LogHost * log_host):
+  Continuation(new_ProxyMutex()),
+  m_host_vc(NULL),
+  m_host_vio(NULL),
+  m_auth_buffer(NULL),
+  m_auth_reader(NULL),
+  m_send_buffer(NULL),
+  m_send_reader(NULL),
+  m_pending_action(NULL),
+  m_pending_event(NULL),
+  m_abort_vio(NULL),
+  m_abort_buffer(NULL),
+  m_buffer_send_list(NULL), m_buffer_in_iocore(NULL), m_flow(LOG_COLL_FLOW_ALLOW), m_log_host(log_host), m_id(0)
+{
+}
+
+LogCollationClientSM::~LogCollationClientSM()
+{
+}
+
+int
+LogCollationClientSM::send(LogBuffer * /* log_buffer ATS_UNUSED */)
+{
+  ink_release_assert(false);
+  return 0;
+}
+
+NetAccept *
+UnixNetProcessor::createNetAccept()
+{
+  ink_release_assert(false);
+  return NULL;
+}
+
+// TODO: The following was necessary only for Solaris, should examine more.
+NetVCOptions const Connection::DEFAULT_OPTIONS;
+NetProcessor::AcceptOptions const NetProcessor::DEFAULT_ACCEPT_OPTIONS;
+DNSConnection::Options const DNSConnection::DEFAULT_OPTIONS;
+
+// TODO: This is even uglier, this actually gets called here when "defined".
+NetProcessor::AcceptOptions&
+NetProcessor::AcceptOptions::reset()
+{
+  local_port = 0;
+  accept_threads = 0;
+  ip_family = AF_INET;
+  etype = ET_NET;
+  f_callback_on_open = false;
+  recv_bufsize = 0;
+  send_bufsize = 0;
+  sockopt_flags = 0;
+  packet_mark = 0;
+  packet_tos = 0;
+  f_inbound_transparent = false;
+  return *this;
+}
+
+// These are for clang / llvm
+int
+CacheVC::handleWrite(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+{
+  return 0;
+  ink_release_assert(false);
+}
+
+UnixNetProcessor unix_netProcessor;
+NetProcessor& netProcessor = unix_netProcessor;
+
+int
+UnixNetProcessor::start(int, size_t)
+{
+  ink_release_assert(false);
+  return 0;
+}
+
+Action *
+NetProcessor::accept(Continuation* /* cont ATS_UNUSED */, AcceptOptions const& /* opt ATS_UNUSED */)
+{
+  ink_release_assert(false);
+  return NULL;
+}
+
+Action *
+NetProcessor::main_accept(Continuation * /* cont ATS_UNUSED */, SOCKET /* fd ATS_UNUSED */,
+                          AcceptOptions const& /* opt ATS_UNUSED */)
+{
+  ink_release_assert(false);
+  return NULL;
+}
+
+Action *
+UnixNetProcessor::accept_internal(Continuation * /* cont ATS_UNUSED */, int /* fd ATS_UNUSED */,
+                                  AcceptOptions const& /* opt ATS_UNUSED */)
+{
+  ink_release_assert(false);
+  return NULL;
+}
+
+NetVConnection *
+UnixNetProcessor::allocate_vc(EThread *)
+{
+  ink_release_assert(false);
+  return NULL;
+}
+
+// For Intel ICC
+int cache_config_mutex_retry_delay = 2;
+
+#include "I_SplitDNSProcessor.h"
+void
+SplitDNSConfig::reconfigure()
+{
+}
+
+ClassAllocator<CacheRemoveCont> cacheRemoveContAllocator("cacheRemoveCont");
+
+CacheHostTable::CacheHostTable(Cache * /* c ATS_UNUSED */, CacheType /* typ ATS_UNUSED */)
+{
+}
+
+CacheHostTable::~CacheHostTable() { }
diff --git a/proxy/shared/signals.cc b/proxy/shared/signals.cc
new file mode 100644
index 00000000..ed527804
--- /dev/null
+++ b/proxy/shared/signals.cc
@@ -0,0 +1,414 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  Signal functions and handlers.
+
+**************************************************************************/
+
+#include "libts.h"
+#include "signals.h"
+#include "ProxyConfig.h"
+#include "P_EventSystem.h"
+#include "StatSystem.h"
+#include "proxy/Main.h"
+
+// For backtraces on crash
+#include "ink_stack_trace.h"
+
+#if TS_HAS_PROFILER
+#include <google/profiler.h>
+#endif
+
+#if !defined(linux) && !defined(freebsd)
+typedef void (*SigActionFunc_t) (int sig, siginfo_t * t, void *f);
+#else
+typedef void (*SigActionFunc_t) (int sig);
+#endif
+
+int exited_children = 0;
+
+static volatile int sigusr1_received = 0;
+extern int fastmemtotal;
+
+class SignalContinuation:public Continuation
+{
+public:
+  char *end;
+  char *snap;
+  int fastmemsnap;
+    SignalContinuation()
+  : Continuation(new_ProxyMutex())
+  {
+    end = snap = 0;
+    fastmemsnap = 0;
+    SET_HANDLER(&SignalContinuation::periodic);
+  }
+
+  int periodic(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    if (sigusr1_received) {
+      sigusr1_received = 0;
+      // TODO: TS-567 Integrate with debugging allocators "dump" features?
+      ink_freelists_dump(stderr);
+      if (!end)
+        end = (char *) sbrk(0);
+      if (!snap)
+        snap = (char *) sbrk(0);
+      char *now = (char *) sbrk(0);
+      // TODO: Use logging instead directly writing to stderr
+      //       This is not error condition at the first place
+      //       so why stderr?
+      //
+      fprintf(stderr, "sbrk 0x%" PRIu64 "x from first %" PRIu64 " from last %" PRIu64 "\n",
+              (uint64_t) ((ptrdiff_t) now), (uint64_t) ((ptrdiff_t) (now - end)),
+              (uint64_t) ((ptrdiff_t) (now - snap)));
+#ifdef DEBUG
+      int fmdelta = fastmemtotal - fastmemsnap;
+      fprintf(stderr, "fastmem %" PRId64 " from last %" PRId64 "\n", (int64_t) fastmemtotal, (int64_t) fmdelta);
+      fastmemsnap += fmdelta;
+#endif
+      snap = now;
+    }
+
+    return EVENT_CONT;
+  }
+};
+
+class TrackerContinuation:public Continuation
+{
+public:
+  int baseline_taken;
+  int use_baseline;
+  TrackerContinuation()
+    : Continuation(new_ProxyMutex())
+  {
+    SET_HANDLER(&TrackerContinuation::periodic);
+    use_baseline = 0;
+    // TODO: ATS prefix all those environment struff or
+    //       even better use config since env can be
+    //       different for parent and child process users.
+    //
+    if (getenv("MEMTRACK_BASELINE"))
+    {
+      use_baseline = 1;
+    }
+    baseline_taken = 0;
+  }
+
+  int periodic(int /* event ATS_UNUSED */, Event * /* e ATS_UNUSED */)
+  {
+    if (use_baseline) {
+      // TODO: TS-567 Integrate with debugging allocators "dump" features?
+      ink_freelists_dump_baselinerel(stderr);
+    } else {
+      // TODO: TS-567 Integrate with debugging allocators "dump" features?
+      ink_freelists_dump(stderr);
+    }
+    if (!baseline_taken && use_baseline) {
+      ink_freelists_snap_baseline();
+      // TODO: TS-567 Integrate with debugging allocators "dump" features?
+      baseline_taken = 1;
+    }
+    return EVENT_CONT;
+  }
+};
+
+
+static void
+interrupt_handler(int sig)
+{
+  (void) sig;
+  fprintf(stderr, "interrupt caught...exit\n");
+  shutdown_system();
+  _exit(1);
+}
+
+#if defined(linux)
+static void
+signal_handler(int sig)
+#else
+static void
+signal_handler(int sig, siginfo_t * t, void *c)
+#endif
+{
+  if (sig == SIGUSR1) {
+    sigusr1_received = 1;
+    return;
+  }
+
+  char sig_msg[2048];
+#if !defined(linux) && !defined(freebsd)
+  // Print out information about where the signal came from
+  //  so that we can debug signal related problems
+  //
+  //  I'm avoiding use of the Diags stuff since it is more
+  //    likely to deadlock from a signal handler.  The syslog
+  //    if questionable and probably should be eventually be
+  //    turned off but should be helpful through Rator alpha
+  //
+  //    lomew adds on May 03, 2002: don't call syslog here because it
+  //    calls malloc and can deadlock you if the SEGV happened in free after
+  //    the heap-mutex has been taken, like if free was called with garbage.
+  //
+  if (t) {
+    if (t->si_code <= 0) {
+      // TODO: Use UID_FMT_T instead duplicating code
+#if defined(solaris)
+      snprintf(sig_msg, sizeof(sig_msg), "NOTE: Traffic Server received User Sig %d from pid: %d uid: %d\n",
+               sig, (int)t->si_pid, (int)t->si_uid);
+#else
+      snprintf(sig_msg, sizeof(sig_msg), "NOTE: Traffic Server received User Sig %d from pid: %d uid: %d\n",
+               sig, t->si_pid, t->si_uid);
+#endif
+    } else {
+      snprintf(sig_msg, sizeof(sig_msg), "NOTE: Traffic Server received Kernel Sig %d, Reason: %d\n", sig, t->si_code);
+    }
+
+    write(2, sig_msg, strlen(sig_msg));
+    //syslog(LOG_ERR, sig_msg);
+  }
+#else
+  snprintf(sig_msg, sizeof(sig_msg), "NOTE: Traffic Server received Sig %d: %s\n", sig, strsignal(sig));
+  ATS_UNUSED_RETURN(write(2, sig_msg, strlen(sig_msg)));
+  //syslog(LOG_ERR, sig_msg);
+#endif
+
+#if TS_HAS_PROFILER
+  ProfilerStop();
+#endif
+  shutdown_system();
+
+  // Make sure to drop a core for signals that normally
+  // would do so.
+  switch (sig) {
+  case SIGQUIT:
+  case SIGILL:
+  case SIGTRAP:
+#if !defined(linux)
+  case SIGEMT:
+  case SIGSYS:
+#endif
+  case SIGFPE:
+  case SIGBUS:
+  case SIGXCPU:
+  case SIGXFSZ:
+  case SIGSEGV:
+    ink_stack_trace_dump();
+    signal(sig, SIG_DFL);
+    return;
+  case SIGUSR2:
+    ink_stack_trace_dump();
+    return;
+  case SIGABRT:
+  case SIGUSR1:
+  default:
+    _exit(sig);
+  }
+}
+
+static void
+child_signal_handler(int sig)
+{
+  (void) sig;
+  int pid;
+  int saved_errno = errno;
+  while ((pid = waitpid(-1, 0, WNOHANG)) > 0) {
+    fprintf(stderr, "child %d exited\n", pid);
+    ++exited_children;
+  }
+  errno = saved_errno;
+}
+
+static void
+set_signal(int signal, SigActionFunc_t action_func)
+{
+  struct sigaction action;
+  struct sigaction o_action;
+
+#if !defined(linux) && !defined(freebsd)
+  action.sa_handler = NULL;
+  action.sa_sigaction = action_func;
+#else
+  action.sa_handler = action_func;
+#endif
+  // action.sa_mask = 0;                // changed 10/17/97 to make portable
+  sigemptyset(&(action.sa_mask));       // changed 10/17/97 to make portable
+  action.sa_flags = 0;
+
+  int res = sigaction(signal, &action, &o_action);
+  ink_release_assert(res == 0);
+}
+
+static void
+check_signal(int signal, SigActionFunc_t action_func)
+{
+  struct sigaction action;
+  struct sigaction o_action;
+
+#if !defined(linux) && !defined(freebsd)
+  action.sa_handler = NULL;
+  action.sa_sigaction = action_func;
+  action.sa_flags = SA_SIGINFO;
+#else
+  action.sa_handler = action_func;
+  action.sa_flags = 0;
+#endif
+  // action.sa_mask = 0;                // changed 10/17/97 to make portable
+  sigemptyset(&(action.sa_mask));       // changed 10/17/97 to make portable
+
+  int res = sigaction(signal, &action, &o_action);
+  ink_release_assert(res == 0);
+
+#if !defined(linux) && !defined(freebsd)
+  if (o_action.sa_sigaction != action_func) {
+    fprintf(stderr, "Handler for signal %d was %p, not %p as expected\n", signal, o_action.sa_sigaction, action_func);
+  }
+#endif
+}
+
+//
+// This is used during debugging to insure that the signals
+// don't change from under us, as they did on the DEC alpha
+// with a specific version of pthreads.
+//
+
+void
+check_signals()
+{
+  check_signal(SIGPIPE, (SigActionFunc_t) SIG_IGN);
+  check_signal(SIGQUIT, (SigActionFunc_t) signal_handler);
+  check_signal(SIGHUP, (SigActionFunc_t) interrupt_handler);
+  check_signal(SIGTERM, (SigActionFunc_t) signal_handler);
+  check_signal(SIGINT, (SigActionFunc_t) signal_handler);
+  check_signal(SIGUSR1, (SigActionFunc_t) signal_handler);
+}
+
+
+//
+// This thread checks the signals every 2 seconds to make
+// certain the DEC pthreads SIGPIPE bug isn't back..
+//
+#if !defined(linux) && !defined(freebsd) && defined(DEBUG)
+static void *
+check_signal_thread(void *)
+{
+  for (;;) {
+    check_signals();
+    sleep(2);
+  }
+  return NULL;
+}
+#endif
+
+void
+init_signals(bool do_stackdump)
+{
+  sigset_t sigsToBlock;
+
+  sigemptyset(&sigsToBlock);
+  ink_thread_sigsetmask(SIG_SETMASK, &sigsToBlock, NULL);
+
+  set_signal(SIGPIPE, (SigActionFunc_t) SIG_IGN);
+  set_signal(SIGQUIT, (SigActionFunc_t) signal_handler);
+  set_signal(SIGTERM, (SigActionFunc_t) signal_handler);
+  set_signal(SIGINT, (SigActionFunc_t) signal_handler);
+  set_signal(SIGHUP, (SigActionFunc_t) interrupt_handler);
+  set_signal(SIGILL, (SigActionFunc_t) signal_handler);
+  if(do_stackdump) {
+    set_signal(SIGBUS, (SigActionFunc_t) signal_handler);
+    set_signal(SIGSEGV, (SigActionFunc_t) signal_handler);
+  }
+
+//
+//    Presviously the following lines were #if 0
+//
+//  set_signal(SIGILL,(SigActionFunc_t)signal_handler);
+//  set_signal(SIGBUS,(SigActionFunc_t)signal_handler);
+//  set_signal(SIGSEGV,(SigActionFunc_t)signal_handler);
+//
+//  There was an an addtional #if 0 w/ a note about SIGABRT
+//   // Do not catch, results in recursive
+//   //  SIGABRT loop on solaris assert() failures
+//  set_signal(SIGABRT,(SigActionFunc_t)signal_handler);
+//
+#if !defined(freebsd)
+  set_signal(SIGUSR1, (SigActionFunc_t) signal_handler);
+#endif
+
+#if defined(linux)
+  set_signal(SIGUSR2, (SigActionFunc_t) signal_handler);
+#endif
+
+#if !defined(linux) && !defined(freebsd) && defined(DEBUG)
+  ink_thread_create(check_signal_thread, NULL);
+#endif
+
+  // do not handle these
+  // ink_assert(signal(SIGINT,(SigActionFunc_t)interrupt_handler) != SIG_ERR);
+}
+
+
+int
+init_tracker(const char *config_var, RecDataT /* type ATS_UNUSED */, RecData data, void * /* cookie ATS_UNUSED */)
+{
+  static Event *tracker_event = NULL;
+  int dump_mem_info_frequency = 0;
+
+  if (config_var)
+    dump_mem_info_frequency = data.rec_int;
+  else
+    dump_mem_info_frequency = REC_ConfigReadInteger("proxy.config.dump_mem_info_frequency");
+  Debug("tracker", "init_tracker called [%d]\n", dump_mem_info_frequency);
+  if (tracker_event) {
+    tracker_event->cancel();
+    tracker_event = NULL;
+  }
+  if (dump_mem_info_frequency > 0) {
+    tracker_event = eventProcessor.schedule_every(new TrackerContinuation,
+                                                  HRTIME_SECONDS(dump_mem_info_frequency), ET_CALL);
+  }
+  return 1;
+}
+
+void
+init_signals2()
+{
+  eventProcessor.schedule_every(new SignalContinuation, HRTIME_MSECOND * 500, ET_CALL);
+  REC_RegisterConfigUpdateFunc("proxy.config.dump_mem_info_frequency", init_tracker, NULL);
+  RecData data;
+  data.rec_int = 0; // Shouldn't be used now anyways
+  init_tracker(NULL, RECD_INT, data, NULL);
+}
+
+
+void
+init_daemon_signals()
+{
+  struct sigaction act;
+  ink_assert(signal(SIGCHLD, (VI_PFN) child_signal_handler) != SIG_ERR);
+  act.sa_handler = (VI_PFN) child_signal_handler;
+  ink_assert(!sigemptyset(&act.sa_mask));
+  act.sa_flags = SA_NOCLDSTOP;
+  ink_assert(!sigaction(SIGCHLD, &act, NULL));
+}
diff --git a/proxy/shared/signals.h b/proxy/shared/signals.h
new file mode 100644
index 00000000..9734ff6c
--- /dev/null
+++ b/proxy/shared/signals.h
@@ -0,0 +1,53 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+/**************************************************************************
+  Signal functions and handlers.
+
+**************************************************************************/
+
+#ifndef _signals_h_
+#define _signals_h_
+
+/*
+ *  Global data
+ */
+
+extern int exited_children;
+typedef void (*sig_callback_fptr) (int signo);
+/*
+*  plugins use this to attach clean up handlers
+*  for SIGSEGV and SIGBUS
+*  Return value: 0 on success, -1 on failure
+*/
+int register_signal_callback(sig_callback_fptr f);
+
+/*
+ *  Function prototypes
+ */
+
+void init_signals(bool do_stackdump=true);
+void init_signals2();
+void init_daemon_signals();
+
+#endif /* _signals_h_ */
diff --git a/proxy/spdy/Makefile.am b/proxy/spdy/Makefile.am
new file mode 100644
index 00000000..a7c44a9f
--- /dev/null
+++ b/proxy/spdy/Makefile.am
@@ -0,0 +1,48 @@
+# Makefile.am for the traffic/iocore/net hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  $(iocore_include_dirs) \
+  -I$(top_srcdir)/lib \
+  -I$(top_builddir)/lib \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/lib/ts \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/proxy/api \
+  -I$(top_srcdir)/proxy/hdrs \
+  -I$(top_srcdir)/proxy/shared \
+  -I$(top_srcdir)/proxy/spdy \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  @SPDYLAY_CFLAGS@
+
+noinst_LIBRARIES = libspdy.a
+
+libspdy_a_SOURCES = \
+  SpdySessionAccept.h \
+  SpdySessionAccept.cc
+
+if BUILD_SPDY
+libspdy_a_SOURCES += \
+  SpdyCallbacks.cc \
+  SpdyCallbacks.h \
+  SpdyClientSession.cc \
+  SpdyClientSession.h \
+  SpdyCommon.cc \
+  SpdyCommon.h
+endif
diff --git a/proxy/spdy/Makefile.in b/proxy/spdy/Makefile.in
new file mode 100644
index 00000000..3bd96c97
--- /dev/null
+++ b/proxy/spdy/Makefile.in
@@ -0,0 +1,889 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for the traffic/iocore/net hierarchy
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VPATH = @srcdir@
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
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+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
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+      -*O?*) strip_trailopt 'O';; \
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+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+@BUILD_SPDY_TRUE@am__append_1 = \
+@BUILD_SPDY_TRUE@  SpdyCallbacks.cc \
+@BUILD_SPDY_TRUE@  SpdyCallbacks.h \
+@BUILD_SPDY_TRUE@  SpdyClientSession.cc \
+@BUILD_SPDY_TRUE@  SpdyClientSession.h \
+@BUILD_SPDY_TRUE@  SpdyCommon.cc \
+@BUILD_SPDY_TRUE@  SpdyCommon.h
+
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+	$(ACLOCAL_M4)
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+CONFIG_CLEAN_FILES =
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+am__v_AR_ = $(am__v_AR_@AM_DEFAULT_V@)
+am__v_AR_0 = @echo "  AR      " $@;
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+am__libspdy_a_SOURCES_DIST = SpdySessionAccept.h SpdySessionAccept.cc \
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+@BUILD_SPDY_TRUE@am__objects_1 = SpdyCallbacks.$(OBJEXT) \
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diff --git a/proxy/spdy/SpdyCallbacks.cc b/proxy/spdy/SpdyCallbacks.cc
new file mode 100644
index 00000000..d9fcd69d
--- /dev/null
+++ b/proxy/spdy/SpdyCallbacks.cc
@@ -0,0 +1,543 @@
+/** @file
+
+  SpdyCallbacks.cc
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "SpdyCallbacks.h"
+#include "SpdyClientSession.h"
+#include <arpa/inet.h>
+
+void
+spdy_callbacks_init(spdylay_session_callbacks *callbacks)
+{
+  memset(callbacks, 0, sizeof(spdylay_session_callbacks));
+
+  callbacks->send_callback = spdy_send_callback;
+  callbacks->recv_callback = spdy_recv_callback;
+  callbacks->on_ctrl_recv_callback = spdy_on_ctrl_recv_callback;
+  callbacks->on_invalid_ctrl_recv_callback = spdy_on_invalid_ctrl_recv_callback;
+  callbacks->on_data_chunk_recv_callback = spdy_on_data_chunk_recv_callback;
+  callbacks->on_data_recv_callback = spdy_on_data_recv_callback;
+  callbacks->before_ctrl_send_callback = spdy_before_ctrl_send_callback;
+  callbacks->on_ctrl_send_callback = spdy_on_ctrl_send_callback;
+  callbacks->on_ctrl_not_send_callback = spdy_on_ctrl_not_send_callback;
+  callbacks->on_data_send_callback = spdy_on_data_send_callback;
+  callbacks->on_stream_close_callback = spdy_on_stream_close_callback;
+  callbacks->on_request_recv_callback = spdy_on_request_recv_callback;
+  callbacks->get_credential_proof = spdy_get_credential_proof;
+  callbacks->get_credential_ncerts = spdy_get_credential_ncerts;
+  callbacks->get_credential_cert = spdy_get_credential_cert;
+  callbacks->on_ctrl_recv_parse_error_callback = spdy_on_ctrl_recv_parse_error_callback;
+  callbacks->on_unknown_ctrl_recv_callback = spdy_on_unknown_ctrl_recv_callback;
+}
+
+void
+spdy_prepare_status_response(SpdyClientSession *sm, int stream_id, const char *status)
+{
+  SpdyRequest *req = sm->req_map[stream_id];
+  string date_str = http_date(time(0));
+  const char **nv = new const char*[8+req->headers.size()*2+1];
+
+  nv[0] = ":status";
+  nv[1] = status;
+  nv[2] = ":version";
+  nv[3] = "HTTP/1.1";
+  nv[4] = "server";
+  nv[5] = SPDYD_SERVER;
+  nv[6] = "date";
+  nv[7] = date_str.c_str();
+
+  for(size_t i = 0; i < req->headers.size(); ++i) {
+    nv[8+i*2] = req->headers[i].first.c_str();
+    nv[8+i*2+1] = req->headers[i].second.c_str();
+  }
+  nv[8+req->headers.size()*2] = 0;
+
+  int r = spdylay_submit_response(sm->session, stream_id, nv, NULL);
+  TSAssert(r == 0);
+
+  TSVIOReenable(sm->write_vio);
+  delete [] nv;
+}
+
+static void
+spdy_show_data_frame(const char *head_str, spdylay_session * /*session*/, uint8_t flags,
+                     int32_t stream_id, int32_t length, void *user_data)
+{
+  if (!is_debug_tag_set("spdy"))
+    return;
+
+  SpdyClientSession *sm = (SpdyClientSession *)user_data;
+
+  Debug("spdy", "%s DATA frame (sm_id:%" PRIu64 ", stream_id:%d, flag:%d, length:%d)",
+        head_str, sm->sm_id, stream_id, flags, length);
+}
+
+static void
+spdy_show_ctl_frame(const char *head_str, spdylay_session * /*session*/, spdylay_frame_type type,
+                    spdylay_frame *frame, void *user_data)
+{
+  if (!is_debug_tag_set("spdy"))
+    return;
+
+  SpdyClientSession *sm = (SpdyClientSession *)user_data;
+  switch (type) {
+  case SPDYLAY_SYN_STREAM: {
+    spdylay_syn_stream *f = (spdylay_syn_stream *)frame;
+    Debug("spdy", "%s SYN_STREAM (sm_id:%" PRIu64 ", stream_id:%d, flag:%d, length:%d)",
+          head_str, sm->sm_id, f->stream_id, f->hd.flags, f->hd.length);
+    int j, i;
+    j = i = 0;
+    while (f->nv[j]) {
+      Debug("spdy", "    %s: %s", f->nv[j], f->nv[j+1]);
+      i++;
+      j = 2*i;
+    }
+  }
+    break;
+  case SPDYLAY_SYN_REPLY: {
+    spdylay_syn_reply *f = (spdylay_syn_reply *)frame;
+    Debug("spdy", "%s SYN_REPLY (sm_id:%" PRIu64 ", stream_id:%d, flag:%d, length:%d)",
+          head_str, sm->sm_id, f->stream_id, f->hd.flags, f->hd.length);
+    int j, i;
+    j = i = 0;
+    while (f->nv[j]) {
+      Debug("spdy", "    %s: %s", f->nv[j], f->nv[j+1]);
+      i++;
+      j = 2*i;
+    }
+  }
+    break;
+  case SPDYLAY_WINDOW_UPDATE: {
+    spdylay_window_update *f = (spdylay_window_update *)frame;
+    Debug("spdy", "%s WINDOW_UPDATE (sm_id:%" PRIu64 ", stream_id:%d, flag:%d, delta_window_size:%u)",
+          head_str, sm->sm_id, f->stream_id, f->hd.flags, f->delta_window_size);
+  }
+    break;
+  case SPDYLAY_SETTINGS: {
+    spdylay_settings *f = (spdylay_settings *)frame;
+    Debug("spdy", "%s SETTINGS frame (sm_id:%" PRIu64 ", flag:%d, length:%d, niv:%zu)",
+          head_str, sm->sm_id, f->hd.flags, f->hd.length, f->niv);
+    for (size_t i = 0; i < f->niv; i++) {
+      Debug("spdy", "    (%d:%d)", f->iv[i].settings_id, f->iv[i].value);
+    }
+  }
+    break;
+  case SPDYLAY_HEADERS: {
+    spdylay_headers *f = (spdylay_headers *)frame;
+    Debug("spdy", "%s HEADERS frame (sm_id:%" PRIu64 ", stream_id:%d, flag:%d, length:%d)",
+          head_str, sm->sm_id, f->stream_id, f->hd.flags, f->hd.length);
+  }
+    break;
+  case SPDYLAY_RST_STREAM: {
+    spdylay_rst_stream *f = (spdylay_rst_stream *)frame;
+    Debug("spdy", "%s RST_STREAM (sm_id:%" PRIu64 ", stream_id:%d, flag:%d, length:%d, code:%d)",
+          head_str, sm->sm_id, f->stream_id, f->hd.flags, f->hd.length, f->status_code);
+  }
+    break;
+  case SPDYLAY_GOAWAY: {
+    spdylay_goaway *f = (spdylay_goaway *)frame;
+    Debug("spdy", "%s GOAWAY frame (sm_id:%" PRIu64 ", last_good_stream_id:%d, flag:%d, length:%d",
+          head_str, sm->sm_id, f->last_good_stream_id, f->hd.flags, f->hd.length);
+  }
+  default:
+    break;
+  }
+  return;
+}
+
+static int
+spdy_fetcher_launch(SpdyRequest *req, TSFetchMethod method)
+{
+  string url;
+  int fetch_flags;
+  const sockaddr *client_addr;
+  SpdyClientSession *sm = req->spdy_sm;
+
+  url = req->scheme + "://" + req->host + req->path;
+  client_addr = TSNetVConnRemoteAddrGet(reinterpret_cast<TSVConn>(sm->vc));
+
+  req->url = url;
+  Debug("spdy", "++++Request[%" PRIu64 ":%d] %s", sm->sm_id, req->stream_id, req->url.c_str());
+
+  //
+  // HTTP content should be dechunked before packed into SPDY.
+  //
+  fetch_flags = TS_FETCH_FLAGS_DECHUNK;
+  req->fetch_sm = TSFetchCreate((TSCont)sm, method,
+                                url.c_str(), req->version.c_str(),
+                                client_addr, fetch_flags);
+  TSFetchUserDataSet(req->fetch_sm, req);
+
+  //
+  // Set header list
+  //
+  for (size_t i = 0; i < req->headers.size(); i++) {
+
+    if (*req->headers[i].first.c_str() == ':')
+      continue;
+
+    TSFetchHeaderAdd(req->fetch_sm,
+                     req->headers[i].first.c_str(), req->headers[i].first.size(),
+                     req->headers[i].second.c_str(), req->headers[i].second.size());
+  }
+
+  TSFetchLaunch(req->fetch_sm);
+  return 0;
+}
+
+ssize_t
+spdy_send_callback(spdylay_session * /*session*/, const uint8_t *data, size_t length,
+                   int /*flags*/, void *user_data)
+{
+  SpdyClientSession  *sm = (SpdyClientSession*)user_data;
+
+  sm->total_size += length;
+  TSIOBufferWrite(sm->resp_buffer, data, length);
+
+  Debug("spdy", "----spdy_send_callback, length:%zu", length);
+
+  return length;
+}
+
+ssize_t
+spdy_recv_callback(spdylay_session * /*session*/, uint8_t *buf, size_t length,
+                   int /*flags*/, void *user_data)
+{
+  const char *start;
+  TSIOBufferBlock blk, next_blk;
+  int64_t already, blk_len, need, wavail;
+
+  SpdyClientSession  *sm = (SpdyClientSession*)user_data;
+
+  already = 0;
+  blk = TSIOBufferReaderStart(sm->req_reader);
+
+  while (blk) {
+
+    wavail = length - already;
+
+    next_blk = TSIOBufferBlockNext(blk);
+    start = TSIOBufferBlockReadStart(blk, sm->req_reader, &blk_len);
+
+    need = blk_len > wavail ? wavail : blk_len;
+
+    memcpy(&buf[already], start, need);
+    already += need;
+
+    if (already >= (int64_t)length)
+      break;
+
+    blk = next_blk;
+  }
+
+  TSIOBufferReaderConsume(sm->req_reader, already);
+
+  // This is a bit of a hack. If we are reading out of the buffer the protocol probe acceptor gave us, then we have not
+  // kicked off our own I/O yet. After consuming this data we will come back and do that.
+  if (sm->read_vio) {
+    TSVIOReenable(sm->read_vio);
+  }
+
+  if (!already)
+    return SPDYLAY_ERR_WOULDBLOCK;
+
+  return already;
+}
+
+static void
+spdy_process_syn_stream_frame(SpdyClientSession *sm, SpdyRequest *req)
+{
+  // validate request headers
+  for(size_t i = 0; i < req->headers.size(); ++i) {
+    const std::string &field = req->headers[i].first;
+    const std::string &value = req->headers[i].second;
+
+    if(field == ":path")
+      req->path = value;
+    else if(field == ":method")
+      req->method = value;
+    else if(field == ":scheme")
+      req->scheme = value;
+    else if(field == ":version")
+      req->version = value;
+    else if(field == ":host")
+      req->host = value;
+  }
+
+  if(!req->path.size()|| !req->method.size() || !req->scheme.size()
+     || !req->version.size() || !req->host.size()) {
+    spdy_prepare_status_response(sm, req->stream_id, STATUS_400);
+    return;
+  }
+
+  if (req->method == "GET")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_GET);
+  else if (req->method == "POST")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_POST);
+  else if (req->method == "PURGE")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_PURGE);
+  else if (req->method == "PUT")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_PUT);
+  else if (req->method == "HEAD")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_HEAD);
+  else if (req->method == "CONNECT")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_CONNECT);
+  else if (req->method == "DELETE")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_DELETE);
+  else if (req->method == "OPTIONS")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_OPTIONS);
+  else if (req->method == "TRACE")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_TRACE);
+  else if (req->method == "LAST")
+    spdy_fetcher_launch(req, TS_FETCH_METHOD_LAST);
+  else
+    spdy_prepare_status_response(sm, req->stream_id, STATUS_405);
+
+}
+
+void
+spdy_on_ctrl_recv_callback(spdylay_session *session, spdylay_frame_type type,
+                           spdylay_frame *frame, void *user_data)
+{
+  int         stream_id;
+  SpdyRequest *req;
+  SpdyClientSession      *sm = (SpdyClientSession*)user_data;
+
+  spdy_show_ctl_frame("++++RECV", session, type, frame, user_data);
+
+  switch (type) {
+
+  case SPDYLAY_SYN_STREAM:
+    stream_id = frame->syn_stream.stream_id;
+    req = spdyRequestAllocator.alloc();
+    req->init(sm, stream_id);
+    req->append_nv(frame->syn_stream.nv);
+    sm->req_map[stream_id] = req;
+    spdy_process_syn_stream_frame(sm, req);
+    break;
+
+  case SPDYLAY_HEADERS:
+    stream_id = frame->syn_stream.stream_id;
+    req = sm->req_map[stream_id];
+    req->append_nv(frame->headers.nv);
+    break;
+
+  case SPDYLAY_WINDOW_UPDATE:
+    TSVIOReenable(sm->write_vio);
+    break;
+
+  default:
+    break;
+  }
+  return;
+}
+
+void
+spdy_on_invalid_ctrl_recv_callback(spdylay_session * /*session*/,
+                                   spdylay_frame_type /*type*/,
+                                   spdylay_frame * /*frame*/,
+                                   uint32_t /*status_code*/,
+                                   void * /*user_data*/)
+{
+  //TODO
+  return;
+}
+
+void
+spdy_on_data_chunk_recv_callback(spdylay_session * /*session*/, uint8_t /*flags*/,
+                                 int32_t stream_id, const uint8_t *data,
+                                 size_t len, void *user_data)
+{
+  SpdyClientSession *sm = (SpdyClientSession *)user_data;
+  SpdyRequest *req = sm->req_map[stream_id];
+
+  //
+  // SpdyRequest has been deleted on error, drop this data;
+  //
+  if (!req)
+    return;
+
+  Debug("spdy", "++++Fetcher Append Data, len:%zu", len);
+  TSFetchWriteData(req->fetch_sm, data, len);
+
+  return;
+}
+
+void
+spdy_on_data_recv_callback(spdylay_session *session, uint8_t flags,
+                           int32_t stream_id, int32_t length, void *user_data)
+{
+  SpdyClientSession *sm = (SpdyClientSession *)user_data;
+  SpdyRequest *req = sm->req_map[stream_id];
+
+  spdy_show_data_frame("++++RECV", session, flags, stream_id, length, user_data);
+
+  //
+  // After SpdyRequest has been deleted on error, the corresponding
+  // client might continue to send POST data, We should reenable
+  // sm->write_vio so that WINDOW_UPDATE has a chance to be sent.
+  //
+  if (!req) {
+    TSVIOReenable(sm->write_vio);
+    return;
+  }
+
+  req->delta_window_size += length;
+
+  Debug("spdy", "----sm_id:%" PRId64 ", stream_id:%d, delta_window_size:%u",
+        sm->sm_id, stream_id, req->delta_window_size);
+
+  if (req->delta_window_size >= spdy_initial_window_size/2) {
+    Debug("spdy", "----Reenable write_vio for WINDOW_UPDATE frame, delta_window_size:%u",
+          req->delta_window_size);
+
+    //
+    // Need not to send WINDOW_UPDATE frame here, what we should
+    // do is to reenable sm->write_vio, and than spdylay_session_send()
+    // will be triggered and it'll send WINDOW_UPDATE frame automatically.
+    //
+    TSVIOReenable(sm->write_vio);
+
+    req->delta_window_size = 0;
+  }
+
+  return;
+}
+
+void
+spdy_before_ctrl_send_callback(spdylay_session * /*session*/,
+                               spdylay_frame_type /*type*/,
+                               spdylay_frame * /*frame*/,
+                               void * /*user_data*/)
+{
+  //TODO
+  return;
+}
+
+void
+spdy_on_ctrl_send_callback(spdylay_session *session, spdylay_frame_type type,
+                           spdylay_frame *frame, void *user_data)
+{
+  spdy_show_ctl_frame("----SEND", session, type, frame, user_data);
+
+  return;
+}
+
+void
+spdy_on_ctrl_not_send_callback(spdylay_session * /*session*/,
+                               spdylay_frame_type /*type*/,
+                               spdylay_frame * /*frame*/,
+                               int /*error_code*/,
+                               void * /*user_data*/)
+{
+  //TODO
+  return;
+}
+
+void
+spdy_on_data_send_callback(spdylay_session *session, uint8_t flags,
+                           int32_t stream_id, int32_t length, void *user_data)
+{
+  SpdyClientSession *sm = (SpdyClientSession *)user_data;
+
+  spdy_show_data_frame("----SEND", session, flags, stream_id, length, user_data);
+
+  TSVIOReenable(sm->read_vio);
+  return;
+}
+
+void
+spdy_on_stream_close_callback(spdylay_session * /*session*/,
+                              int32_t /*stream_id*/,
+                              spdylay_status_code /*status_code*/,
+                              void * /*user_data*/)
+{
+  //TODO
+  return;
+}
+
+ssize_t
+spdy_get_credential_proof(spdylay_session * /*session*/,
+                          const spdylay_origin * /*origin*/,
+                          uint8_t * /*proof*/,
+                          size_t /*prooflen*/,
+                          void * /*user_data*/)
+{
+  //TODO
+  return 0;
+}
+
+ssize_t
+spdy_get_credential_ncerts(spdylay_session * /*session*/,
+                           const spdylay_origin * /*origin*/,
+                           void * /*user_data*/)
+{
+  //TODO
+  return 0;
+}
+
+ssize_t
+spdy_get_credential_cert(spdylay_session * /*session*/,
+                         const spdylay_origin * /*origin*/,
+                         size_t /*idx*/,
+                         uint8_t * /*cert*/,
+                         size_t /*certlen*/,
+                         void * /*user_data*/)
+{
+  //TODO
+  return 0;
+}
+
+void
+spdy_on_request_recv_callback(spdylay_session * /*session*/,
+                              int32_t /*stream_id*/,
+                              void * /*user_data*/)
+{
+  //TODO
+  return;
+}
+
+void
+spdy_on_ctrl_recv_parse_error_callback(spdylay_session * /*session*/,
+                                       spdylay_frame_type /*type*/,
+                                       const uint8_t * /*head*/,
+                                       size_t /*headlen*/,
+                                       const uint8_t * /*payload*/,
+                                       size_t /*payloadlen*/,
+                                       int /*error_code*/,
+                                       void * /*user_data*/)
+{
+  //TODO
+  return;
+}
+
+void
+spdy_on_unknown_ctrl_recv_callback(spdylay_session * /*session*/,
+                                   const uint8_t * /*head*/,
+                                   size_t /*headlen*/,
+                                   const uint8_t * /*payload*/,
+                                   size_t /*payloadlen*/,
+                                   void * /*user_data*/)
+{
+  //TODO
+  return;
+}
diff --git a/proxy/spdy/SpdyCallbacks.h b/proxy/spdy/SpdyCallbacks.h
new file mode 100644
index 00000000..ebe3c714
--- /dev/null
+++ b/proxy/spdy/SpdyCallbacks.h
@@ -0,0 +1,269 @@
+/** @file
+
+  SpdyCallbacks.h
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SPDY_CALLBACKS_H__
+#define __P_SPDY_CALLBACKS_H__
+
+#include <spdylay/spdylay.h>
+class SpdyClientSession;
+
+void spdy_callbacks_init(spdylay_session_callbacks *callbacks);
+void spdy_prepare_status_response(SpdyClientSession *sm, int stream_id, const char *status);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when |session| wants to send data to the
+ * remote peer. The implementation of this function must send at most
+ * |length| bytes of data stored in |data|. The |flags| is currently
+ * not used and always 0. It must return the number of bytes sent if
+ * it succeeds.  If it cannot send any single byte without blocking,
+ * it must return :enum:`SPDYLAY_ERR_WOULDBLOCK`. For other errors, it
+ * must return :enum:`SPDYLAY_ERR_CALLBACK_FAILURE`.
+ */
+ssize_t spdy_send_callback
+(spdylay_session *session,
+ const uint8_t *data, size_t length, int flags, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when |session| wants to receive data from
+ * the remote peer. The implementation of this function must read at
+ * most |length| bytes of data and store it in |buf|. The |flags| is
+ * currently not used and always 0. It must return the number of bytes
+ * written in |buf| if it succeeds. If it cannot read any single byte
+ * without blocking, it must return :enum:`SPDYLAY_ERR_WOULDBLOCK`. If
+ * it gets EOF before it reads any single byte, it must return
+ * :enum:`SPDYLAY_ERR_EOF`. For other errors, it must return
+ * :enum:`SPDYLAY_ERR_CALLBACK_FAILURE`.
+ */
+ssize_t spdy_recv_callback
+(spdylay_session *session,
+ uint8_t *buf, size_t length, int flags, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked by `spdylay_session_recv()` when a
+ * control frame is received.
+ */
+void spdy_on_ctrl_recv_callback
+(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
+ void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked by `spdylay_session_recv()` when an
+ * invalid control frame is received. The |status_code| is one of the
+ * :enum:`spdylay_status_code` and indicates the error. When this
+ * callback function is invoked, the library automatically submits
+ * either RST_STREAM or GOAWAY frame.
+ */
+void spdy_on_invalid_ctrl_recv_callback
+(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
+ uint32_t status_code, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when a chunk of data in DATA frame is
+ * received. The |stream_id| is the stream ID this DATA frame belongs
+ * to. The |flags| is the flags of DATA frame which this data chunk is
+ * contained. ``(flags & SPDYLAY_DATA_FLAG_FIN) != 0`` does not
+ * necessarily mean this chunk of data is the last one in the
+ * stream. You should use :type:`spdylay_on_data_recv_callback` to
+ * know all data frames are received.
+ */
+void spdy_on_data_chunk_recv_callback
+(spdylay_session *session, uint8_t flags, int32_t stream_id,
+ const uint8_t *data, size_t len, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when DATA frame is received. The actual
+ * data it contains are received by
+ * :type:`spdylay_on_data_chunk_recv_callback`.
+ */
+void spdy_on_data_recv_callback
+(spdylay_session *session, uint8_t flags, int32_t stream_id, int32_t length,
+ void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked before the control frame |frame| of type
+ * |type| is sent. This may be useful, for example, to know the stream
+ * ID of SYN_STREAM frame (see also
+ * `spdylay_session_get_stream_user_data()`), which is not assigned
+ * when it was queued.
+ */
+void spdy_before_ctrl_send_callback
+(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
+ void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked after the control frame |frame| of type
+ * |type| is sent.
+ */
+void spdy_on_ctrl_send_callback
+(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
+ void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked after the control frame |frame| of type
+ * |type| is not sent because of the error. The error is indicated by
+ * the |error_code|, which is one of the values defined in
+ * :type:`spdylay_error`.
+ */
+void spdy_on_ctrl_not_send_callback
+(spdylay_session *session, spdylay_frame_type type, spdylay_frame *frame,
+ int error_code, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked after DATA frame is sent.
+ */
+void spdy_on_data_send_callback
+(spdylay_session *session, uint8_t flags, int32_t stream_id, int32_t length,
+ void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the stream |stream_id| is
+ * closed. The reason of closure is indicated by the
+ * |status_code|. The stream_user_data, which was specified in
+ * `spdylay_submit_request()` or `spdylay_submit_syn_stream()`, is
+ * still available in this function.
+ */
+void spdy_on_stream_close_callback
+(spdylay_session *session, int32_t stream_id, spdylay_status_code status_code,
+ void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the library needs the cryptographic
+ * proof that the client has possession of the private key associated
+ * with the certificate for the given |origin|.  If called with
+ * |prooflen| == 0, the implementation of this function must return
+ * the length of the proof in bytes. If called with |prooflen| > 0,
+ * write proof into |proof| exactly |prooflen| bytes and return 0.
+ *
+ * Because the client certificate vector has limited number of slots,
+ * the application code may be required to pass the same proof more
+ * than once.
+ */
+ssize_t spdy_get_credential_proof
+(spdylay_session *session, const spdylay_origin *origin,
+ uint8_t *proof, size_t prooflen, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the library needs the length of the
+ * client certificate chain for the given |origin|.  The
+ * implementation of this function must return the length of the
+ * client certificate chain.  If no client certificate is required for
+ * the given |origin|, return 0.  If positive integer is returned,
+ * :type:`spdylay_get_credential_proof` and
+ * :type:`spdylay_get_credential_cert` callback functions will be used
+ * to get the cryptographic proof and certificate respectively.
+ */
+ssize_t spdy_get_credential_ncerts
+(spdylay_session *session, const spdylay_origin *origin, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the library needs the client
+ * certificate for the given |origin|. The |idx| is the index of the
+ * certificate chain and 0 means the leaf certificate of the chain.
+ * If called with |certlen| == 0, the implementation of this function
+ * must return the length of the certificate in bytes. If called with
+ * |certlen| > 0, write certificate into |cert| exactly |certlen|
+ * bytes and return 0.
+ */
+ssize_t spdy_get_credential_cert
+(spdylay_session *session, const spdylay_origin *origin, size_t idx,
+ uint8_t *cert, size_t certlen, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the request from the remote peer is
+ * received.  In other words, the frame with FIN flag set is received.
+ * In HTTP, this means HTTP request, including request body, is fully
+ * received.
+ */
+void spdy_on_request_recv_callback
+(spdylay_session *session, int32_t stream_id, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the received control frame octets
+ * could not be parsed correctly. The |type| indicates the type of
+ * received control frame. The |head| is the pointer to the header of
+ * the received frame. The |headlen| is the length of the
+ * |head|. According to the SPDY spec, the |headlen| is always 8. In
+ * other words, the |head| is the first 8 bytes of the received frame.
+ * The |payload| is the pointer to the data portion of the received
+ * frame.  The |payloadlen| is the length of the |payload|. This is
+ * the data after the length field. The |error_code| is one of the
+ * error code defined in :enum:`spdylay_error` and indicates the
+ * error.
+ */
+void spdy_on_ctrl_recv_parse_error_callback
+(spdylay_session *session, spdylay_frame_type type,
+ const uint8_t *head, size_t headlen,
+ const uint8_t *payload, size_t payloadlen,
+ int error_code, void *user_data);
+
+/**
+ * @functypedef
+ *
+ * Callback function invoked when the received control frame type is
+ * unknown. The |head| is the pointer to the header of the received
+ * frame. The |headlen| is the length of the |head|. According to the
+ * SPDY spec, the |headlen| is always 8. In other words, the |head| is
+ * the first 8 bytes of the received frame.  The |payload| is the
+ * pointer to the data portion of the received frame.  The
+ * |payloadlen| is the length of the |payload|. This is the data after
+ * the length field.
+ */
+void spdy_on_unknown_ctrl_recv_callback
+(spdylay_session *session,
+ const uint8_t *head, size_t headlen,
+ const uint8_t *payload, size_t payloadlen,
+ void *user_data);
+
+#endif
diff --git a/proxy/spdy/SpdyClientSession.cc b/proxy/spdy/SpdyClientSession.cc
new file mode 100644
index 00000000..8ea8072c
--- /dev/null
+++ b/proxy/spdy/SpdyClientSession.cc
@@ -0,0 +1,456 @@
+/** @file
+
+  SpdyClientSession.cc
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "SpdyClientSession.h"
+#include "I_Net.h"
+
+static ClassAllocator<SpdyClientSession> spdyClientSessionAllocator("spdyClientSessionAllocator");
+ClassAllocator<SpdyRequest> spdyRequestAllocator("spdyRequestAllocator");
+
+#if TS_HAS_SPDY
+#include "SpdyClientSession.h"
+
+static const spdylay_proto_version versmap[] = {
+  SPDYLAY_PROTO_SPDY2,    // SPDY_VERSION_2
+  SPDYLAY_PROTO_SPDY3,    // SPDY_VERSION_3
+  SPDYLAY_PROTO_SPDY3_1,  // SPDY_VERSION_3_1
+};
+
+static char const* const  npnmap[] = {
+  TS_NPN_PROTOCOL_SPDY_2,
+  TS_NPN_PROTOCOL_SPDY_3,
+  TS_NPN_PROTOCOL_SPDY_3_1
+};
+
+#endif
+static int spdy_process_read(TSEvent event, SpdyClientSession *sm);
+static int spdy_process_write(TSEvent event, SpdyClientSession *sm);
+static int spdy_process_fetch(TSEvent event, SpdyClientSession *sm, void *edata);
+static int spdy_process_fetch_header(TSEvent event, SpdyClientSession *sm, TSFetchSM fetch_sm);
+static int spdy_process_fetch_body(TSEvent event, SpdyClientSession *sm, TSFetchSM fetch_sm);
+static uint64_t g_sm_id = 1;
+
+void
+SpdyRequest::init(SpdyClientSession *sm, int id)
+{
+  spdy_sm = sm;
+  stream_id = id;
+  headers.clear();
+
+  MD5_Init(&recv_md5);
+  start_time = TShrtime();
+
+  SPDY_INCREMENT_THREAD_DYN_STAT(SPDY_STAT_CURRENT_CLIENT_STREAM_COUNT, sm->mutex->thread_holding);
+}
+
+void
+SpdyRequest::clear()
+{
+  SPDY_DECREMENT_THREAD_DYN_STAT(SPDY_STAT_CURRENT_CLIENT_STREAM_COUNT, spdy_sm->mutex->thread_holding);
+
+  if (fetch_sm)
+    TSFetchDestroy(fetch_sm);
+
+  vector<pair<string, string> >().swap(headers);
+
+  std::string().swap(url);
+  std::string().swap(host);
+  std::string().swap(path);
+  std::string().swap(scheme);
+  std::string().swap(method);
+  std::string().swap(version);
+
+  Debug("spdy", "****Delete Request[%" PRIu64 ":%d]", spdy_sm->sm_id, stream_id);
+}
+
+void
+SpdyClientSession::init(NetVConnection * netvc, spdy::SessionVersion vers)
+{
+  int r;
+
+  this->mutex = new_ProxyMutex();
+  this->vc = netvc;
+  this->req_map.clear();
+  this->version = vers;
+
+  r = spdylay_session_server_new(&session, versmap[vers], &spdy_callbacks, this);
+
+  // A bit ugly but we need a thread and I don't want to wait until the
+  // session start event in case of a time out generating a decrement
+  // with no increment. It seems a lesser thing to have the thread counts
+  // a little off but globally consistent.
+  SPDY_INCREMENT_THREAD_DYN_STAT(SPDY_STAT_CURRENT_CLIENT_SESSION_COUNT, netvc->mutex->thread_holding);
+  SPDY_INCREMENT_THREAD_DYN_STAT(SPDY_STAT_TOTAL_CLIENT_CONNECTION_COUNT, netvc->mutex->thread_holding);
+
+  ink_release_assert(r == 0);
+  sm_id = atomic_inc(g_sm_id);
+  total_size = 0;
+  start_time = TShrtime();
+
+  this->vc->set_inactivity_timeout(HRTIME_SECONDS(spdy_accept_no_activity_timeout));
+  SET_HANDLER(&SpdyClientSession::state_session_start);
+
+}
+
+void
+SpdyClientSession::clear()
+{
+  int last_event = event;
+
+  SPDY_DECREMENT_THREAD_DYN_STAT(SPDY_STAT_CURRENT_CLIENT_SESSION_COUNT, this->mutex->thread_holding);
+
+  //
+  // SpdyRequest depends on SpdyClientSession,
+  // we should delete it firstly to avoid race.
+  //
+  map<int, SpdyRequest*>::iterator iter = req_map.begin();
+  map<int, SpdyRequest*>::iterator endIter = req_map.end();
+  for(; iter != endIter; ++iter) {
+    SpdyRequest *req = iter->second;
+    if (req) {
+      req->clear();
+      spdyRequestAllocator.free(req);
+    } else {
+      Error("req null in SpdSM::clear");
+    }
+  }
+  req_map.clear();
+
+  this->mutex = NULL;
+
+  if (vc) {
+    TSVConnClose(reinterpret_cast<TSVConn>(vc));
+    vc = NULL;
+  }
+
+
+  if (req_reader) {
+    TSIOBufferReaderFree(req_reader);
+    req_reader = NULL;
+  }
+
+  if (req_buffer) {
+    TSIOBufferDestroy(req_buffer);
+    req_buffer = NULL;
+  }
+
+  if (resp_reader) {
+    TSIOBufferReaderFree(resp_reader);
+    resp_reader = NULL;
+  }
+
+  if (resp_buffer) {
+    TSIOBufferDestroy(resp_buffer);
+    resp_buffer = NULL;
+  }
+
+  if (session) {
+    spdylay_session_del(session);
+    session = NULL;
+  }
+
+  Debug("spdy-free", "****Delete SpdyClientSession[%" PRIu64 "], last event:%d" PRIu64,
+        sm_id, last_event);
+}
+
+void
+spdy_sm_create(NetVConnection * netvc, spdy::SessionVersion vers, MIOBuffer * iobuf, IOBufferReader * reader)
+{
+  SpdyClientSession  *sm;
+
+  sm = spdyClientSessionAllocator.alloc();
+  sm->init(netvc, vers);
+
+  sm->req_buffer = iobuf ? reinterpret_cast<TSIOBuffer>(iobuf) : TSIOBufferCreate();
+  sm->req_reader = reader ? reinterpret_cast<TSIOBufferReader>(reader) : TSIOBufferReaderAlloc(sm->req_buffer);
+
+  sm->resp_buffer = TSIOBufferCreate();
+  sm->resp_reader = TSIOBufferReaderAlloc(sm->resp_buffer);
+
+  eventProcessor.schedule_imm(sm, ET_NET);
+}
+
+int
+SpdyClientSession::state_session_start(int /* event */, void * /* edata */)
+{
+  const spdylay_settings_entry entries[] = {
+    { SPDYLAY_SETTINGS_MAX_CONCURRENT_STREAMS, SPDYLAY_ID_FLAG_SETTINGS_NONE, spdy_max_concurrent_streams },
+    { SPDYLAY_SETTINGS_INITIAL_WINDOW_SIZE, SPDYLAY_ID_FLAG_SETTINGS_NONE, spdy_initial_window_size }
+  };
+  int r;
+
+  if (TSIOBufferReaderAvail(this->req_reader) > 0) {
+    spdy_process_read(TS_EVENT_VCONN_WRITE_READY, this);
+  }
+
+  this->read_vio = (TSVIO)this->vc->do_io_read(this, INT64_MAX, reinterpret_cast<MIOBuffer *>(this->req_buffer));
+  this->write_vio = (TSVIO)this->vc->do_io_write(this, INT64_MAX, reinterpret_cast<IOBufferReader *>(this->resp_reader));
+
+  SET_HANDLER(&SpdyClientSession::state_session_readwrite);
+
+  r = spdylay_submit_settings(this->session, SPDYLAY_FLAG_SETTINGS_NONE, entries, countof(entries));
+  ink_assert(r == 0);
+
+  if (this->version >= spdy::SESSION_VERSION_3_1 && spdy_initial_window_size > (1 << 16)) {
+    int32_t delta = (spdy_initial_window_size - SPDYLAY_INITIAL_WINDOW_SIZE);
+
+    r = spdylay_submit_window_update(this->session, 0, delta);
+    ink_assert(r == 0);
+  }
+
+  TSVIOReenable(this->write_vio);
+  return EVENT_CONT;
+}
+
+int
+SpdyClientSession::state_session_readwrite(int event, void * edata)
+{
+  int ret = 0;
+  bool from_fetch = false;
+
+  this->event = event;
+
+  if (edata == this->read_vio) {
+    Debug("spdy", "++++[READ EVENT]");
+    if (event != TS_EVENT_VCONN_READ_READY &&
+        event != TS_EVENT_VCONN_READ_COMPLETE) {
+      ret = -1;
+      goto out;
+    }
+    ret = spdy_process_read((TSEvent)event, this);
+  } else if (edata == this->write_vio) {
+    Debug("spdy", "----[WRITE EVENT]");
+    if (event != TS_EVENT_VCONN_WRITE_READY &&
+        event != TS_EVENT_VCONN_WRITE_COMPLETE) {
+      ret = -1;
+      goto out;
+    }
+    ret = spdy_process_write((TSEvent)event, this);
+  } else {
+    from_fetch = true;
+    ret = spdy_process_fetch((TSEvent)event, this, edata);
+  }
+
+  Debug("spdy-event", "++++SpdyClientSession[%" PRIu64 "], EVENT:%d, ret:%d",
+        this->sm_id, event, ret);
+out:
+  if (ret) {
+    this->clear();
+    spdyClientSessionAllocator.free(this);
+  } else if (!from_fetch) {
+    this->vc->set_inactivity_timeout(HRTIME_SECONDS(spdy_no_activity_timeout_in));
+  }
+
+  return EVENT_CONT;
+}
+
+int64_t
+SpdyClientSession::getPluginId() const
+{
+  return sm_id;
+}
+
+char const*
+SpdyClientSession::getPluginTag() const
+{
+  return npnmap[this->version];
+}
+
+
+static int
+spdy_process_read(TSEvent /* event ATS_UNUSED */, SpdyClientSession *sm)
+{
+  return spdylay_session_recv(sm->session);
+}
+
+static int
+spdy_process_write(TSEvent /* event ATS_UNUSED */, SpdyClientSession *sm)
+{
+  int ret;
+
+  ret = spdylay_session_send(sm->session);
+
+  if (TSIOBufferReaderAvail(sm->resp_reader) > 0)
+    TSVIOReenable(sm->write_vio);
+  else {
+    Debug("spdy", "----TOTAL SEND (sm_id:%" PRIu64 ", total_size:%" PRIu64 ", total_send:%" PRId64 ")",
+          sm->sm_id, sm->total_size, TSVIONDoneGet(sm->write_vio));
+
+    //
+    // We should reenable read_vio when no data to be written,
+    // otherwise it could lead to hang issue when client POST
+    // data is waiting to be read.
+    //
+    TSVIOReenable(sm->read_vio);
+  }
+
+  return ret;
+}
+
+static int
+spdy_process_fetch(TSEvent event, SpdyClientSession *sm, void *edata)
+{
+  int ret = -1;
+  TSFetchSM fetch_sm = (TSFetchSM)edata;
+  SpdyRequest *req = (SpdyRequest *)TSFetchUserDataGet(fetch_sm);
+
+  switch ((int)event) {
+
+  case TS_FETCH_EVENT_EXT_HEAD_DONE:
+    Debug("spdy", "----[FETCH HEADER DONE]");
+    ret = spdy_process_fetch_header(event, sm, fetch_sm);
+    break;
+
+  case TS_FETCH_EVENT_EXT_BODY_READY:
+    Debug("spdy", "----[FETCH BODY READY]");
+    ret = spdy_process_fetch_body(event, sm, fetch_sm);
+    break;
+
+  case TS_FETCH_EVENT_EXT_BODY_DONE:
+    Debug("spdy", "----[FETCH BODY DONE]");
+    req->fetch_body_completed = true;
+    ret = spdy_process_fetch_body(event, sm, fetch_sm);
+    break;
+
+  default:
+    Debug("spdy", "----[FETCH ERROR]");
+    if (req->fetch_body_completed)
+      ret = 0; // Ignore fetch errors after FETCH BODY DONE
+    else
+      req->fetch_sm = NULL;
+    break;
+  }
+
+  if (ret) {
+    spdy_prepare_status_response(sm, req->stream_id, STATUS_500);
+    sm->req_map.erase(req->stream_id);
+    req->clear();
+    spdyRequestAllocator.free(req);
+  }
+
+  return 0;
+}
+
+static int
+spdy_process_fetch_header(TSEvent /*event*/, SpdyClientSession *sm, TSFetchSM fetch_sm)
+{
+  int ret;
+  SpdyRequest *req = (SpdyRequest *)TSFetchUserDataGet(fetch_sm);
+  SpdyNV spdy_nv(fetch_sm);
+
+  Debug("spdy", "----spdylay_submit_syn_reply");
+  ret = spdylay_submit_syn_reply(sm->session,
+                                 SPDYLAY_CTRL_FLAG_NONE, req->stream_id,
+                                 spdy_nv.nv);
+
+  TSVIOReenable(sm->write_vio);
+  return ret;
+}
+
+static ssize_t
+spdy_read_fetch_body_callback(spdylay_session * /*session*/, int32_t stream_id,
+                              uint8_t *buf, size_t length, int *eof,
+                              spdylay_data_source *source, void *user_data)
+{
+
+  static int g_call_cnt;
+  int64_t already;
+
+  SpdyClientSession *sm = (SpdyClientSession *)user_data;
+  SpdyRequest *req = (SpdyRequest *)source->ptr;
+
+  //
+  // req has been deleted, ignore this data.
+  //
+  if (req != sm->req_map[stream_id]) {
+    Debug("spdy", "    stream_id:%d, call:%d, req has been deleted, return 0",
+          stream_id, g_call_cnt);
+    *eof = 1;
+    return 0;
+  }
+
+  already = TSFetchReadData(req->fetch_sm, buf, length);
+
+  Debug("spdy", "    stream_id:%d, call:%d, length:%ld, already:%" PRId64,
+        stream_id, g_call_cnt, length, already);
+  if (is_debug_tag_set("spdy"))
+    MD5_Update(&req->recv_md5, buf, already);
+
+  TSVIOReenable(sm->write_vio);
+  g_call_cnt++;
+
+  req->fetch_data_len += already;
+  if (already < (int64_t)length) {
+    if (req->event == TS_FETCH_EVENT_EXT_BODY_DONE) {
+      TSHRTime end_time = TShrtime();
+      SPDY_SUM_THREAD_DYN_STAT(SPDY_STAT_TOTAL_TRANSACTIONS_TIME, sm->mutex->thread_holding, end_time - req->start_time);
+      Debug("spdy", "----Request[%" PRIu64 ":%d] %s %lld %d", sm->sm_id, req->stream_id,
+            req->url.c_str(), (end_time - req->start_time)/TS_HRTIME_MSECOND,
+            req->fetch_data_len);
+      unsigned char digest[MD5_DIGEST_LENGTH];
+      if (is_debug_tag_set("spdy")) {
+        MD5_Final(digest, &req->recv_md5);
+        Debug("spdy", "----recv md5sum: ");
+        for (int i = 0; i < MD5_DIGEST_LENGTH; i++) {
+          Debug("spdy", "%02x", digest[i]);
+        }
+      }
+      *eof = 1;
+      sm->req_map.erase(stream_id);
+      req->clear();
+      spdyRequestAllocator.free(req);
+    } else if (already == 0) {
+      req->need_resume_data = true;
+      return SPDYLAY_ERR_DEFERRED;
+    }
+  }
+
+  return already;
+}
+
+static int
+spdy_process_fetch_body(TSEvent event, SpdyClientSession *sm, TSFetchSM fetch_sm)
+{
+  int ret = 0;
+  spdylay_data_provider data_prd;
+  SpdyRequest *req = (SpdyRequest *)TSFetchUserDataGet(fetch_sm);
+  req->event = event;
+
+  data_prd.source.ptr = (void *)req;
+  data_prd.read_callback = spdy_read_fetch_body_callback;
+
+  if (!req->has_submitted_data) {
+    req->has_submitted_data = true;
+    Debug("spdy", "----spdylay_submit_data");
+    ret = spdylay_submit_data(sm->session, req->stream_id,
+                              SPDYLAY_DATA_FLAG_FIN, &data_prd);
+  } else if (req->need_resume_data) {
+    Debug("spdy", "----spdylay_session_resume_data");
+    ret = spdylay_session_resume_data(sm->session, req->stream_id);
+    if (ret == SPDYLAY_ERR_INVALID_ARGUMENT)
+      ret = 0;
+  }
+
+  TSVIOReenable(sm->write_vio);
+  return ret;
+}
diff --git a/proxy/spdy/SpdyClientSession.h b/proxy/spdy/SpdyClientSession.h
new file mode 100644
index 00000000..81f7107b
--- /dev/null
+++ b/proxy/spdy/SpdyClientSession.h
@@ -0,0 +1,142 @@
+/** @file
+
+  SpdyClientSession.h
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SPDY_SM_H__
+#define __P_SPDY_SM_H__
+
+#include "SpdyDefs.h"
+#include "SpdyCommon.h"
+#include "SpdyCallbacks.h"
+#include <openssl/md5.h>
+#include "Plugin.h"
+
+class SpdyClientSession;
+typedef int (*SpdyClientSessionHandler) (TSCont contp, TSEvent event, void *data);
+
+class SpdyRequest
+{
+public:
+  SpdyRequest():
+    spdy_sm(NULL), stream_id(-1), fetch_sm(NULL),
+    has_submitted_data(false), need_resume_data(false),
+    fetch_data_len(0), delta_window_size(0),
+    fetch_body_completed(false)
+  {
+  }
+
+  SpdyRequest(SpdyClientSession *sm, int id):
+    spdy_sm(NULL), stream_id(-1), fetch_sm(NULL),
+    has_submitted_data(false), need_resume_data(false),
+    fetch_data_len(0), delta_window_size(0),
+    fetch_body_completed(false)
+  {
+    init(sm, id);
+  }
+
+  ~SpdyRequest()
+  {
+    clear();
+  }
+
+  void init(SpdyClientSession *sm, int id);
+  void clear();
+
+  void append_nv(char **nv)
+  {
+    for(int i = 0; nv[i]; i += 2) {
+      headers.push_back(make_pair(nv[i], nv[i+1]));
+    }
+  }
+
+public:
+  int event;
+  SpdyClientSession *spdy_sm;
+  int stream_id;
+  TSHRTime start_time;
+  TSFetchSM fetch_sm;
+  bool has_submitted_data;
+  bool need_resume_data;
+  int fetch_data_len;
+  unsigned delta_window_size;
+  bool fetch_body_completed;
+  vector<pair<string, string> > headers;
+
+  string url;
+  string host;
+  string path;
+  string scheme;
+  string method;
+  string version;
+
+  MD5_CTX recv_md5;
+};
+
+class SpdyClientSession : public Continuation, public PluginIdentity
+{
+
+public:
+
+  SpdyClientSession() : Continuation(NULL) {
+  }
+
+  ~SpdyClientSession() {
+    clear();
+  }
+
+  void init(NetVConnection * netvc, spdy::SessionVersion vers);
+  void clear();
+
+  int64_t sm_id;
+  spdy::SessionVersion version;
+  uint64_t total_size;
+  TSHRTime start_time;
+
+  NetVConnection * vc;
+
+  TSIOBuffer req_buffer;
+  TSIOBufferReader req_reader;
+
+  TSIOBuffer resp_buffer;
+  TSIOBufferReader resp_reader;
+
+  TSVIO   read_vio;
+  TSVIO   write_vio;
+
+  int event;
+  spdylay_session *session;
+
+  map<int32_t, SpdyRequest*> req_map;
+
+  virtual char const* getPluginTag() const;
+  virtual int64_t getPluginId() const;
+
+private:
+  int state_session_start(int event, void * edata);
+  int state_session_readwrite(int event, void * edata);
+};
+
+void spdy_sm_create(NetVConnection * netvc, spdy::SessionVersion vers, MIOBuffer * iobuf, IOBufferReader * reader);
+
+extern ClassAllocator<SpdyRequest> spdyRequestAllocator;
+
+#endif
diff --git a/proxy/spdy/SpdyCommon.cc b/proxy/spdy/SpdyCommon.cc
new file mode 100644
index 00000000..db2fdc23
--- /dev/null
+++ b/proxy/spdy/SpdyCommon.cc
@@ -0,0 +1,184 @@
+/** @file
+
+  SpdyCommon.cc
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "SpdyCommon.h"
+#include "SpdyCallbacks.h"
+
+// SPDYlay callbacks
+spdylay_session_callbacks spdy_callbacks;
+
+// statistic names
+RecRawStatBlock* spdy_rsb; ///< Container for statistics.
+
+static char const * const SPDY_STAT_CURRENT_CLIENT_SESSION_NAME = "proxy.process.spdy.current_client_sessions";
+static char const * const SPDY_STAT_CURRENT_CLIENT_STREAM_NAME = "proxy.process.spdy.current_client_streams";
+static char const * const SPDY_STAT_TOTAL_CLIENT_STREAM_NAME = "proxy.process.spdy.total_client_streams";
+static char const * const SPDY_STAT_TOTAL_TRANSACTIONS_TIME_NAME = "proxy.process.spdy.total_transactions_time";
+static char const * const SPDY_STAT_TOTAL_CLIENT_CONNECTION_NAME = "proxy.process.spdy.total_client_connections";
+
+// Configurations
+uint32_t spdy_max_concurrent_streams = 100;
+uint32_t spdy_initial_window_size = 65536;
+int32_t spdy_accept_no_activity_timeout = 120;
+int32_t spdy_no_activity_timeout_in = 115;
+
+string
+http_date(time_t t)
+{
+  char buf[32];
+  tm* tms = gmtime(&t); // returned struct is statically allocated.
+  size_t r = strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S GMT", tms);
+  return std::string(&buf[0], &buf[r]);
+}
+
+int
+spdy_config_load()
+{
+  REC_EstablishStaticConfigInt32U(spdy_max_concurrent_streams, "proxy.config.spdy.max_concurrent_streams_in");
+  REC_EstablishStaticConfigInt32U(spdy_initial_window_size, "proxy.config.spdy.initial_window_size_in");
+  REC_EstablishStaticConfigInt32(spdy_no_activity_timeout_in, "proxy.config.spdy.no_activity_timeout_in");
+  REC_EstablishStaticConfigInt32(spdy_accept_no_activity_timeout, "proxy.config.spdy.accept_no_activity_timeout");
+
+  spdy_callbacks_init(&spdy_callbacks);
+
+  // Get our statistics up
+  spdy_rsb = RecAllocateRawStatBlock(static_cast<int>(SPDY_N_STATS));
+  RecRegisterRawStat(spdy_rsb, RECT_PROCESS, SPDY_STAT_CURRENT_CLIENT_SESSION_NAME, RECD_INT, RECP_NON_PERSISTENT,
+                     static_cast<int>(SPDY_STAT_CURRENT_CLIENT_SESSION_COUNT), RecRawStatSyncSum);
+  RecRegisterRawStat(spdy_rsb, RECT_PROCESS, SPDY_STAT_CURRENT_CLIENT_STREAM_NAME, RECD_INT, RECP_NON_PERSISTENT,
+                     static_cast<int>(SPDY_STAT_CURRENT_CLIENT_STREAM_COUNT), RecRawStatSyncSum);
+  RecRegisterRawStat(spdy_rsb, RECT_PROCESS, SPDY_STAT_TOTAL_CLIENT_STREAM_NAME, RECD_INT, RECP_PERSISTENT,
+                     static_cast<int>(SPDY_STAT_TOTAL_TRANSACTIONS_TIME), RecRawStatSyncCount);
+  RecRegisterRawStat(spdy_rsb, RECT_PROCESS, SPDY_STAT_TOTAL_TRANSACTIONS_TIME_NAME, RECD_INT, RECP_PERSISTENT,
+                     static_cast<int>(SPDY_STAT_TOTAL_TRANSACTIONS_TIME), RecRawStatSyncSum);
+  RecRegisterRawStat(spdy_rsb, RECT_PROCESS, SPDY_STAT_TOTAL_CLIENT_CONNECTION_NAME, RECD_INT, RECP_PERSISTENT,
+                     static_cast<int>(SPDY_STAT_TOTAL_CLIENT_CONNECTION_COUNT), RecRawStatSyncSum);
+
+  return 0;
+}
+
+SpdyNV::SpdyNV(TSFetchSM fetch_sm)
+{
+  int i, len;
+  char *p;
+  const char *name, *value;
+  int name_len, value_len, hdr_len, nr_fields;
+  TSMLoc loc, field_loc, next_loc;
+  TSMBuffer bufp;
+
+  bufp = TSFetchRespHdrMBufGet(fetch_sm);
+  loc = TSFetchRespHdrMLocGet(fetch_sm);
+
+  hdr_len = TSMimeHdrLengthGet(bufp, loc);
+  mime_hdr = malloc(hdr_len);
+  TSReleaseAssert(mime_hdr);
+
+  nr_fields = TSMimeHdrFieldsCount(bufp, loc);
+  nv = (const char **)malloc((2*nr_fields + 5) * sizeof(char *));
+  TSReleaseAssert(nv);
+
+  //
+  // Process Status and Version
+  //
+  i = TSHttpHdrVersionGet(bufp, loc);
+  snprintf(version, sizeof(version), "HTTP/%d.%d", TS_HTTP_MAJOR(i), TS_HTTP_MINOR(i));
+
+  i = TSHttpHdrStatusGet(bufp, loc);
+  value = (char *)TSHttpHdrReasonGet(bufp, loc, &value_len);
+  snprintf(status, sizeof(version), "%d ", i);
+  i = strlen(status);
+  len = sizeof(status) - i;
+  len = value_len > len ? len : value_len;
+  strncpy(&status[i], value, len);
+  status[len + i] = '\0';;
+
+  i = 0;
+  nv[i++] = ":version";
+  nv[i++] = version;
+  nv[i++] = ":status";
+  nv[i++] = status;
+
+  //
+  // Process HTTP headers
+  //
+  p = (char *)mime_hdr;
+  field_loc = TSMimeHdrFieldGet(bufp, loc, 0);
+  while (field_loc) {
+    name = TSMimeHdrFieldNameGet(bufp, loc, field_loc, &name_len);
+    TSReleaseAssert(name && name_len);
+
+    //
+    // According SPDY v3 spec, in RESPONSE:
+    // The Connection, Keep-Alive, Proxy-Connection, and
+    // Transfer-Encoding headers are not valid and MUST not be sent.
+    //
+    if (!strncasecmp(name, "Connection", name_len))
+      goto next;
+
+    if (!strncasecmp(name, "Keep-Alive", name_len))
+      goto next;
+
+    if (!strncasecmp(name, "Proxy-Connection", name_len))
+      goto next;
+
+    if (!strncasecmp(name, "Transfer-Encoding", name_len))
+      goto next;
+
+    value = TSMimeHdrFieldValueStringGet(bufp, loc, field_loc, -1, &value_len);
+
+    //
+    // Any HTTP headers with empty value are invalid,
+    // we should ignore them.
+    //
+    if (!value || !value_len)
+      goto next;
+
+    strncpy(p, name, name_len);
+    nv[i++] = p;
+    p += name_len;
+    *p++ = '\0';
+
+    strncpy(p, value, value_len);
+    nv[i++] = p;
+    p += value_len;
+    *p++ = '\0';
+
+next:
+    next_loc = TSMimeHdrFieldNext(bufp, loc, field_loc);
+    TSHandleMLocRelease(bufp, loc, field_loc);
+    field_loc = next_loc;
+  }
+  nv[i] = NULL;
+
+  if (field_loc)
+    TSHandleMLocRelease(bufp, loc, field_loc);
+}
+
+SpdyNV::~SpdyNV()
+{
+  if (nv)
+    free(nv);
+
+  if (mime_hdr)
+    free(mime_hdr);
+}
diff --git a/proxy/spdy/SpdyCommon.h b/proxy/spdy/SpdyCommon.h
new file mode 100644
index 00000000..3425ad3b
--- /dev/null
+++ b/proxy/spdy/SpdyCommon.h
@@ -0,0 +1,109 @@
+/** @file
+
+  SpdyCommon.h
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SPDY_COMMON_H__
+#define __P_SPDY_COMMON_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <limits.h>
+#include <string.h>
+#include <string>
+#include <vector>
+#include <map>
+
+#include "P_Net.h"
+#include "ts/ts.h"
+#include "ts/libts.h"
+#include "ts/experimental.h"
+#include <spdylay/spdylay.h>
+using namespace std;
+
+#define STATUS_200      "200 OK"
+#define STATUS_304      "304 Not Modified"
+#define STATUS_400      "400 Bad Request"
+#define STATUS_404      "404 Not Found"
+#define STATUS_405      "405 Method Not Allowed"
+#define STATUS_500      "500 Internal Server Error"
+#define DEFAULT_HTML    "index.html"
+#define SPDYD_SERVER    "ATS Spdylay/" SPDYLAY_VERSION
+
+#define atomic_fetch_and_add(a, b)  __sync_fetch_and_add(&a, b)
+#define atomic_fetch_and_sub(a, b)  __sync_fetch_and_sub(&a, b)
+#define atomic_inc(a)   atomic_fetch_and_add(a, 1)
+#define atomic_dec(a)   atomic_fetch_and_sub(a, 1)
+
+// SPDYlay callbacks
+extern spdylay_session_callbacks spdy_callbacks;
+
+// Configurations
+extern uint32_t spdy_max_concurrent_streams;
+extern uint32_t spdy_initial_window_size;
+extern int32_t spdy_accept_no_activity_timeout;
+extern int32_t spdy_no_activity_timeout_in;
+
+// Statistics
+extern RecRawStatBlock* spdy_rsb;
+
+enum {
+  SPDY_STAT_CURRENT_CLIENT_SESSION_COUNT, ///< Current # of active SPDY sessions.
+  SPDY_STAT_CURRENT_CLIENT_STREAM_COUNT, ///< Current # of active SPDY streams.
+  SPDY_STAT_TOTAL_TRANSACTIONS_TIME,  //< Total stream time and streams
+  SPDY_STAT_TOTAL_CLIENT_CONNECTION_COUNT, //< Total connections running spdy
+
+  SPDY_N_STATS ///< Terminal counter, NOT A STAT INDEX.
+};
+
+// Spdy Name/Value pairs
+class SpdyNV {
+public:
+
+  SpdyNV(TSFetchSM fetch_sm);
+  ~SpdyNV();
+
+public:
+  const char **nv;
+
+private:
+  SpdyNV();
+  void *mime_hdr;
+  char status[64];
+  char version[64];
+};
+
+string http_date(time_t t);
+int spdy_config_load();
+
+// Stat helper functions. ToDo: These probably should be turned into #define's as we do elsewhere
+#define SPDY_INCREMENT_THREAD_DYN_STAT(_s, _t)     \
+  RecIncrRawStat(spdy_rsb, _t, (int) _s, 1);
+
+#define SPDY_DECREMENT_THREAD_DYN_STAT(_s, _t)     \
+  RecIncrRawStat(spdy_rsb, _t, (int) _s, -1);
+
+#define SPDY_SUM_THREAD_DYN_STAT(_s, _t, _v)       \
+  RecIncrRawStat(spdy_rsb, _t, (int) _s, _v);
+
+#endif
diff --git a/proxy/spdy/SpdyDefs.h b/proxy/spdy/SpdyDefs.h
new file mode 100644
index 00000000..226f1809
--- /dev/null
+++ b/proxy/spdy/SpdyDefs.h
@@ -0,0 +1,39 @@
+/** @file
+
+  Definitions for internal and external use.
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef __P_SPDY_DEFS_H__
+#define __P_SPDY_DEFS_H__
+
+namespace spdy
+{
+  /// Internal implementation version.
+  /// These map to the SPDY version handled.
+  enum SessionVersion
+  {
+    SESSION_VERSION_2 = 0,
+    SESSION_VERSION_3,
+    SESSION_VERSION_3_1
+  };
+}
+
+#endif
diff --git a/proxy/spdy/SpdySessionAccept.cc b/proxy/spdy/SpdySessionAccept.cc
new file mode 100644
index 00000000..d7dfa116
--- /dev/null
+++ b/proxy/spdy/SpdySessionAccept.cc
@@ -0,0 +1,71 @@
+/** @file
+
+  SpdyNetAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include "SpdySessionAccept.h"
+#include "Error.h"
+
+#if TS_HAS_SPDY
+#include "SpdyClientSession.h"
+#endif
+
+SpdySessionAccept::SpdySessionAccept(spdy::SessionVersion vers)
+    : SessionAccept(new_ProxyMutex()), version(vers)
+{
+#if TS_HAS_SPDY
+  ink_release_assert(spdy::SESSION_VERSION_2 <= vers && vers <= spdy::SESSION_VERSION_3_1);
+#endif
+  SET_HANDLER(&SpdySessionAccept::mainEvent);
+}
+
+int
+SpdySessionAccept::mainEvent(int event, void * edata)
+{
+  if (event == NET_EVENT_ACCEPT) {
+    NetVConnection * netvc =static_cast<NetVConnection *>(edata);
+
+#if TS_HAS_SPDY
+    spdy_sm_create(netvc, this->version, NULL, NULL);
+#else
+    Error("accepted a SPDY session, but SPDY support is not available");
+    netvc->do_io_close();
+#endif
+
+    return EVENT_CONT;
+  }
+
+  MachineFatal("SPDY accept received fatal error: errno = %d", -((int)(intptr_t)edata));
+  return EVENT_CONT;
+}
+
+void
+SpdySessionAccept::accept(NetVConnection * netvc, MIOBuffer * iobuf, IOBufferReader * reader)
+{
+#if TS_HAS_SPDY
+  spdy_sm_create(netvc, this->version, iobuf, reader);
+#else
+  (void)netvc;
+  (void)iobuf;
+  (void)reader;
+  ink_release_assert(0);
+#endif
+}
diff --git a/proxy/spdy/SpdySessionAccept.h b/proxy/spdy/SpdySessionAccept.h
new file mode 100644
index 00000000..af3d81da
--- /dev/null
+++ b/proxy/spdy/SpdySessionAccept.h
@@ -0,0 +1,50 @@
+/** @file
+
+  SpdySessionAccept
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#ifndef SpdySessionAccept_H_
+#define SpdySessionAccept_H_
+
+#include "P_Net.h"
+#include "P_EventSystem.h"
+#include "P_UnixNet.h"
+#include "I_IOBuffer.h"
+#include "SpdyDefs.h"
+
+class SpdySessionAccept: public SessionAccept
+{
+public:
+
+  explicit SpdySessionAccept(spdy::SessionVersion vers);
+  ~SpdySessionAccept() {}
+
+  void accept(NetVConnection *, MIOBuffer *, IOBufferReader *);
+
+private:
+  int mainEvent(int event, void *netvc);
+  SpdySessionAccept(const SpdySessionAccept &); // disabled
+  SpdySessionAccept& operator =(const SpdySessionAccept&); // disabled
+
+  spdy::SessionVersion version;
+};
+
+#endif /* SpdySessionAccept_H_ */
diff --git a/proxy/test_xml_parser.cc b/proxy/test_xml_parser.cc
new file mode 100644
index 00000000..24a5eb8b
--- /dev/null
+++ b/proxy/test_xml_parser.cc
@@ -0,0 +1,55 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+
+#include <stdio.h>
+#include "InkXml.h"
+#include <ink_assert.h>
+
+int
+main()
+{
+  InkXmlAttr *    a1 = new InkXmlAttr("Name", "Matt");
+  InkXmlAttr *    a2 = new InkXmlAttr("Title", "Engineer");
+  InkXmlAttr *    a3 = new InkXmlAttr("Company", "Inktomi");
+  InkXmlObject *  o1 = new InkXmlObject("Employee");
+
+  ink_release_assert(strcmp(o1->object_name(), "Employee") == 0);
+
+  o1->add_attr(a1);
+  ink_release_assert(o1->first() == a1);
+
+  o1->add_attr(a2);
+  ink_release_assert(o1->next(o1->first()) == a2);
+
+  o1->add_attr(a3);
+  ink_release_assert(o1->next(o1->next(o1->first())) == a3);
+
+  o1->add_tag("Email", "matt@inktomi");
+  ink_release_assert(strcmp(o1->tag_value("Email"), "matt@inktomi") == 0);
+
+  InkXmlConfigFile f1("logs.config");
+  f1.add_object(o1);
+  f1.display();
+
+  return 0;
+}
diff --git a/proxy/tests/logstats.blog b/proxy/tests/logstats.blog
new file mode 100644
index 0000000000000000000000000000000000000000..229c1d288ef80f6300f51c713197e9e776c94664
GIT binary patch
literal 14976
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diff --git a/proxy/tests/logstats.json b/proxy/tests/logstats.json
new file mode 100644
index 00000000..907c2ddd
--- /dev/null
+++ b/proxy/tests/logstats.json
@@ -0,0 +1,243 @@
+{ "total": {
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+    "hit.ims" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.refresh" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.total" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "miss.direct" : { "req": "56", "req_pct": "83.58", "bytes": "5874019", "bytes_pct": "88.98" },
+    "miss.ims" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "miss.refresh" : { "req": "10", "req_pct": "14.93", "bytes": "727203", "bytes_pct": "11.02" },
+    "miss.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "miss.total" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "error.client_abort" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "error.connect_failed" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "error.invalid_request" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "status.200" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "status.201" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.202" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.203" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.204" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.205" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.206" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.2xx" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "status.300" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.301" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.302" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.303" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.304" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.305" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.307" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "status.400" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.401" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.402" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.403" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.404" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.405" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.406" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.407" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.408" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.409" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.410" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.411" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.412" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.413" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.414" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.415" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.416" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.417" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.4xx" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.500" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.501" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.502" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.503" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.504" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.505" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.5xx" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.000" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.none" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.direct" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "hier.sibling" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.parent" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "hier.invalid" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "method.options" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.get" : { "req": "67", "req_pct": "100.00", "bytes": "6601222", "bytes_pct": "100.00" },
+    "method.head" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "method.delete" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.trace" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.connect" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.purge" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.none" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "scheme.http" : { "req": "67", "req_pct": "100.00", "bytes": "6601222", "bytes_pct": "100.00" },
+    "scheme.https" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "scheme.none" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "content.text.css" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.html" : { "req": "49", "req_pct": "73.13", "bytes": "4329503", "bytes_pct": "65.59" },
+    "content.text.xml" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.plain" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.total" : { "req": "49", "req_pct": "73.13", "bytes": "4329503", "bytes_pct": "65.59" },
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+    "content.image.bmp" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "content.image.total" : { "req": "2", "req_pct": "2.99", "bytes": "4130", "bytes_pct": "0.06" },
+    "content.audio.x-wav" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.audio.x-mpeg" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "content.audio.total" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
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+    "content.application.total" : { "req": "15", "req_pct": "22.39", "bytes": "2267589", "bytes_pct": "34.35" },
+    "content.none" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "content.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.direct.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.ims.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.refresh.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.other.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.total.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "miss.direct.latency" : { "min": "88", "max": "1059", "avg": "449.64", "dev": "199.97" },
+    "miss.ims.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "miss.refresh.latency" : { "min": "168", "max": "491", "avg": "278.80", "dev": "117.47" },
+    "miss.other.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "miss.total.latency" : { "min": "88", "max": "1059", "avg": "423.76", "dev": "199.43" },
+  },
+  "imgur.com": {
+    "hit.direct" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.ims" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.refresh" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.total" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "miss.direct" : { "req": "56", "req_pct": "83.58", "bytes": "5874019", "bytes_pct": "88.98" },
+    "miss.ims" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "miss.refresh" : { "req": "10", "req_pct": "14.93", "bytes": "727203", "bytes_pct": "11.02" },
+    "miss.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "miss.total" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "error.client_abort" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "error.connect_failed" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "error.invalid_request" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "error.unknown" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "error.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "error.total" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "status.100" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.200" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "status.201" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.202" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.203" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.204" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.205" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.206" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.2xx" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "status.300" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.301" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.302" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.303" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.304" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.305" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.307" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.3xx" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.400" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.401" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.402" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.403" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.404" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.405" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.406" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.407" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.408" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.409" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.410" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.411" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.412" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.413" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.414" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.415" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.416" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.417" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.4xx" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.500" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.501" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.502" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.503" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.504" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.505" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.5xx" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "status.000" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.none" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.direct" : { "req": "66", "req_pct": "98.51", "bytes": "6601222", "bytes_pct": "100.00" },
+    "hier.sibling" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.parent" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.empty" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.invalid" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hier.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.options" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.get" : { "req": "67", "req_pct": "100.00", "bytes": "6601222", "bytes_pct": "100.00" },
+    "method.head" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.post" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.put" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.delete" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.trace" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.connect" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.purge" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.none" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "method.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "scheme.http" : { "req": "67", "req_pct": "100.00", "bytes": "6601222", "bytes_pct": "100.00" },
+    "scheme.https" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "scheme.none" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "scheme.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.javascript" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.css" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.html" : { "req": "49", "req_pct": "73.13", "bytes": "4329503", "bytes_pct": "65.59" },
+    "content.text.xml" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.plain" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.text.total" : { "req": "49", "req_pct": "73.13", "bytes": "4329503", "bytes_pct": "65.59" },
+    "content.image.jpeg" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.image.gif" : { "req": "1", "req_pct": "1.49", "bytes": "2662", "bytes_pct": "0.04" },
+    "content.image.png" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.image.bmp" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.image.other" : { "req": "1", "req_pct": "1.49", "bytes": "1468", "bytes_pct": "0.02" },
+    "content.image.total" : { "req": "2", "req_pct": "2.99", "bytes": "4130", "bytes_pct": "0.06" },
+    "content.audio.x-wav" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.audio.x-mpeg" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.audio.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.audio.total" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.shockwave" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.javascript" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.quicktime" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.zip" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.rss_xml" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.rss_atom" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "content.application.other" : { "req": "15", "req_pct": "22.39", "bytes": "2267589", "bytes_pct": "34.35" },
+    "content.application.total" : { "req": "15", "req_pct": "22.39", "bytes": "2267589", "bytes_pct": "34.35" },
+    "content.none" : { "req": "1", "req_pct": "1.49", "bytes": "0", "bytes_pct": "0.00" },
+    "content.other" : { "req": "0", "req_pct": "0.00", "bytes": "0", "bytes_pct": "0.00" },
+    "hit.direct.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.ims.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.refresh.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.other.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "hit.total.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "miss.direct.latency" : { "min": "88", "max": "1059", "avg": "449.64", "dev": "199.97" },
+    "miss.ims.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "miss.refresh.latency" : { "min": "168", "max": "491", "avg": "278.80", "dev": "117.47" },
+    "miss.other.latency" : { "min": "-1", "max": "0", "avg": "0.00", "dev": "0.00" },
+    "miss.total.latency" : { "min": "88", "max": "1059", "avg": "423.76", "dev": "199.43" },
+  }
+}
diff --git a/proxy/tests/logstats.summary b/proxy/tests/logstats.summary
new file mode 100644
index 00000000..f27077cd
--- /dev/null
+++ b/proxy/tests/logstats.summary
@@ -0,0 +1,164 @@
+                        Totals (all Origins combined)
+
+Request Result                         Count    Percent       Bytes    Percent
+------------------------------------------------------------------------------
+Cache hit                                  0      0.00%      0.00KB      0.00%
+Cache hit IMS                              0      0.00%      0.00KB      0.00%
+Cache hit refresh                          0      0.00%      0.00KB      0.00%
+Cache hit other                            0      0.00%      0.00KB      0.00%
+Cache hit total                            0      0.00%      0.00KB      0.00%
+
+Cache miss                                56     83.58%      5.60MB     88.98%
+Cache miss IMS                             0      0.00%      0.00KB      0.00%
+Cache miss refresh                        10     14.93%    710.16KB     11.02%
+Cache miss other                           0      0.00%      0.00KB      0.00%
+Cache miss total                          66     98.51%      6.30MB    100.00%
+
+Client aborted                             1      1.49%      0.00KB      0.00%
+Connect failed                             0      0.00%      0.00KB      0.00%
+Invalid request                            0      0.00%      0.00KB      0.00%
+Unknown error(99)                          0      0.00%      0.00KB      0.00%
+Other errors                               0      0.00%      0.00KB      0.00%
+Errors total                               1      1.49%      0.00KB      0.00%
+..............................................................................
+Total requests                            67    100.00%      6.30MB    100.00%
+
+
+HTTP return codes                      Count    Percent       Bytes    Percent
+------------------------------------------------------------------------------
+100 Continue                               0      0.00%      0.00KB      0.00%
+200 OK                                    66     98.51%      6.30MB    100.00%
+201 Created                                0      0.00%      0.00KB      0.00%
+202 Accepted                               0      0.00%      0.00KB      0.00%
+203 Non-Authoritative Info                 0      0.00%      0.00KB      0.00%
+204 No content                             0      0.00%      0.00KB      0.00%
+205 Reset Content                          0      0.00%      0.00KB      0.00%
+206 Partial content                        0      0.00%      0.00KB      0.00%
+2xx Total                                 66     98.51%      6.30MB    100.00%
+
+300 Multiple Choices                       0      0.00%      0.00KB      0.00%
+301 Moved permanently                      0      0.00%      0.00KB      0.00%
+302 Found                                  0      0.00%      0.00KB      0.00%
+303 See Other                              0      0.00%      0.00KB      0.00%
+304 Not modified                           0      0.00%      0.00KB      0.00%
+305 Use Proxy                              0      0.00%      0.00KB      0.00%
+307 Temporary Redirect                     0      0.00%      0.00KB      0.00%
+3xx Total                                  0      0.00%      0.00KB      0.00%
+
+400 Bad request                            0      0.00%      0.00KB      0.00%
+401 Unauthorized                           0      0.00%      0.00KB      0.00%
+402 Payment Required                       0      0.00%      0.00KB      0.00%
+403 Forbidden                              0      0.00%      0.00KB      0.00%
+404 Not found                              0      0.00%      0.00KB      0.00%
+405 Method Not Allowed                     0      0.00%      0.00KB      0.00%
+406 Not Acceptable                         0      0.00%      0.00KB      0.00%
+407 Proxy Auth Required                    0      0.00%      0.00KB      0.00%
+408 Request Timeout                        0      0.00%      0.00KB      0.00%
+409 Conflict                               0      0.00%      0.00KB      0.00%
+410 Gone                                   0      0.00%      0.00KB      0.00%
+411 Length Required                        0      0.00%      0.00KB      0.00%
+412 Precondition Failed                    0      0.00%      0.00KB      0.00%
+413 Request Entity Too Large               0      0.00%      0.00KB      0.00%
+414 Request-URI Too Long                   0      0.00%      0.00KB      0.00%
+415 Unsupported Media Type                 0      0.00%      0.00KB      0.00%
+416 Req Range Not Satisfiable              0      0.00%      0.00KB      0.00%
+417 Expectation Failed                     0      0.00%      0.00KB      0.00%
+4xx Total                                  0      0.00%      0.00KB      0.00%
+
+500 Internal Server Error                  0      0.00%      0.00KB      0.00%
+501 Not implemented                        0      0.00%      0.00KB      0.00%
+502 Bad gateway                            0      0.00%      0.00KB      0.00%
+503 Service unavailable                    0      0.00%      0.00KB      0.00%
+504 Gateway Timeout                        0      0.00%      0.00KB      0.00%
+505 HTTP Ver. Not Supported                0      0.00%      0.00KB      0.00%
+5xx Total                                  0      0.00%      0.00KB      0.00%
+
+000 Unknown                                1      1.49%      0.00KB      0.00%
+
+
+Origin hierarchies                     Count    Percent       Bytes    Percent
+------------------------------------------------------------------------------
+NONE                                       0      0.00%      0.00KB      0.00%
+DIRECT                                    66     98.51%      6.30MB    100.00%
+SIBLING                                    0      0.00%      0.00KB      0.00%
+PARENT                                     0      0.00%      0.00KB      0.00%
+EMPTY                                      1      1.49%      0.00KB      0.00%
+invalid                                    0      0.00%      0.00KB      0.00%
+other                                      0      0.00%      0.00KB      0.00%
+
+
+HTTP Methods                           Count    Percent       Bytes    Percent
+------------------------------------------------------------------------------
+OPTIONS                                    0      0.00%      0.00KB      0.00%
+GET                                       67    100.00%      6.30MB    100.00%
+HEAD                                       0      0.00%      0.00KB      0.00%
+POST                                       0      0.00%      0.00KB      0.00%
+PUT                                        0      0.00%      0.00KB      0.00%
+DELETE                                     0      0.00%      0.00KB      0.00%
+TRACE                                      0      0.00%      0.00KB      0.00%
+CONNECT                                    0      0.00%      0.00KB      0.00%
+PURGE                                      0      0.00%      0.00KB      0.00%
+none (-)                                   0      0.00%      0.00KB      0.00%
+other                                      0      0.00%      0.00KB      0.00%
+
+
+URL Schemes                            Count    Percent       Bytes    Percent
+------------------------------------------------------------------------------
+HTTP (port 80)                            67    100.00%      6.30MB    100.00%
+HTTPS (port 443)                           0      0.00%      0.00KB      0.00%
+none                                       0      0.00%      0.00KB      0.00%
+other                                      0      0.00%      0.00KB      0.00%
+
+
+Content Types                          Count    Percent       Bytes    Percent
+------------------------------------------------------------------------------
+text/javascript                            0      0.00%      0.00KB      0.00%
+text/css                                   0      0.00%      0.00KB      0.00%
+text/html                                 49     73.13%      4.13MB     65.59%
+text/xml                                   0      0.00%      0.00KB      0.00%
+text/plain                                 0      0.00%      0.00KB      0.00%
+text/ other                                0      0.00%      0.00KB      0.00%
+text/ total                               49     73.13%      4.13MB     65.59%
+
+image/jpeg                                 0      0.00%      0.00KB      0.00%
+image/gif                                  1      1.49%      2.60KB      0.04%
+image/png                                  0      0.00%      0.00KB      0.00%
+image/bmp                                  0      0.00%      0.00KB      0.00%
+image/ other                               1      1.49%      1.43KB      0.02%
+image/ total                               2      2.99%      4.03KB      0.06%
+
+audio/x-wav                                0      0.00%      0.00KB      0.00%
+audio/x-mpeg                               0      0.00%      0.00KB      0.00%
+audio/ other                               0      0.00%      0.00KB      0.00%
+audio/ total                               0      0.00%      0.00KB      0.00%
+
+application/x-shockwave                    0      0.00%      0.00KB      0.00%
+application/[x-]javascript                 0      0.00%      0.00KB      0.00%
+application/x-quicktime                    0      0.00%      0.00KB      0.00%
+application/zip                            0      0.00%      0.00KB      0.00%
+application/rss+xml                        0      0.00%      0.00KB      0.00%
+application/rss+atom                       0      0.00%      0.00KB      0.00%
+application/ other                        15     22.39%      2.16MB     34.35%
+application/ total                        15     22.39%      2.16MB     34.35%
+
+none                                       1      1.49%      0.00KB      0.00%
+other                                      0      0.00%      0.00KB      0.00%
+
+
+Elapsed time stats          Min          Max              Avg    Std Deviation
+------------------------------------------------------------------------------
+Cache hit                     0            0             0.00             0.00
+Cache hit IMS                 0            0             0.00             0.00
+Cache hit refresh             0            0             0.00             0.00
+Cache hit other               0            0             0.00             0.00
+Cache hit total               0            0             0.00             0.00
+Cache miss                   88        1,059           449.64           199.97
+Cache miss IMS                0            0             0.00             0.00
+Cache miss refresh          168          491           278.80           117.47
+Cache miss other              0            0             0.00             0.00
+Cache miss total             88        1,059           423.76           199.43
+
+______________________________________________________________________________
+
+
+
diff --git a/proxy/tests/test_logstats_json b/proxy/tests/test_logstats_json
new file mode 100755
index 00000000..4676db90
--- /dev/null
+++ b/proxy/tests/test_logstats_json
@@ -0,0 +1,28 @@
+#! /usr/bin/env bash
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+set -e # exit on error
+
+TMPDIR=${TMPDIR:-/tmp}
+tmpfile=$(mktemp "$TMPDIR/logstats.XXXXXX")
+srcdir=$(cd $srcdir && pwd)
+
+# Note that the JSON has a timestamp in it that we have to filter out ...
+./traffic_logstats --log_file "$srcdir/tests/logstats.blog" --json | fgrep -v 'timestamp' | fgrep -v 'symbol xid' > "$tmpfile"
+diff "$tmpfile" "$srcdir/tests/logstats.json"
+rm -f -- "$tmpfile"
diff --git a/proxy/tests/test_logstats_summary b/proxy/tests/test_logstats_summary
new file mode 100755
index 00000000..75e3cc68
--- /dev/null
+++ b/proxy/tests/test_logstats_summary
@@ -0,0 +1,29 @@
+#! /usr/bin/env bash
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+set -e # exit on error
+
+TMPDIR=${TMPDIR:-/tmp}
+tmpfile=$(mktemp "$TMPDIR/logstats.XXXXXX")
+
+# Automake sets $srcdir.
+srcdir=$(cd $srcdir && pwd)
+
+./traffic_logstats --log_file "$srcdir/tests/logstats.blog" --summary | fgrep -v 'symbol xid' > "$tmpfile"
+diff "$tmpfile" "$srcdir/tests/logstats.summary"
+rm -f -- "$tmpfile"
diff --git a/rc/Makefile.am b/rc/Makefile.am
new file mode 100644
index 00000000..e720f6f3
--- /dev/null
+++ b/rc/Makefile.am
@@ -0,0 +1,28 @@
+# Makefile.am for install
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/cache \
+  -I$(top_srcdir)/proxy/logging
+
+dist_bin_SCRIPTS = \
+  trafficserver
diff --git a/rc/Makefile.in b/rc/Makefile.in
new file mode 100644
index 00000000..b28b1b50
--- /dev/null
+++ b/rc/Makefile.in
@@ -0,0 +1,778 @@
+# Makefile.in generated by automake 1.13.4 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Makefile.am for install
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
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+
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+arpa_nameser_compath = @arpa_nameser_compath@
+arpa_nameserh = @arpa_nameserh@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_group = @build_group@
+build_machine = @build_machine@
+build_os = @build_os@
+build_person = @build_person@
+build_vendor = @build_vendor@
+builddir = @builddir@
+cachedir = @cachedir@
+cpioh = @cpioh@
+ctypeh = @ctypeh@
+datadir = @datadir@
+datarootdir = @datarootdir@
+default_loopback_iface = @default_loopback_iface@
+defer_accept = @defer_accept@
+docdir = @docdir@
+dvidir = @dvidir@
+enable_remote_cov_commit = @enable_remote_cov_commit@
+endianh = @endianh@
+exec_prefix = @exec_prefix@
+execinfoh = @execinfoh@
+exp_bindir = @exp_bindir@
+exp_cachedir = @exp_cachedir@
+exp_datadir = @exp_datadir@
+exp_docdir = @exp_docdir@
+exp_exec_prefix = @exp_exec_prefix@
+exp_includedir = @exp_includedir@
+exp_infodir = @exp_infodir@
+exp_installbuilddir = @exp_installbuilddir@
+exp_libdir = @exp_libdir@
+exp_libexecdir = @exp_libexecdir@
+exp_localstatedir = @exp_localstatedir@
+exp_logdir = @exp_logdir@
+exp_mandir = @exp_mandir@
+exp_prefix = @exp_prefix@
+exp_runtimedir = @exp_runtimedir@
+exp_sbindir = @exp_sbindir@
+exp_sysconfdir = @exp_sysconfdir@
+expath = @expath@
+floath = @floath@
+gethostbyname_r_glibc2 = @gethostbyname_r_glibc2@
+has_128bit_cas = @has_128bit_cas@
+has_backtrace = @has_backtrace@
+has_in6_is_addr_unspecified = @has_in6_is_addr_unspecified@
+has_interim_cache = @has_interim_cache@
+has_ip_tos = @has_ip_tos@
+has_profiler = @has_profiler@
+has_so_mark = @has_so_mark@
+has_spdy = @has_spdy@
+has_tcmalloc = @has_tcmalloc@
+has_tests = @has_tests@
+has_wccp = @has_wccp@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+ifaddrsh = @ifaddrsh@
+includedir = @includedir@
+infodir = @infodir@
+ink_with_modules_local = @ink_with_modules_local@
+ink_with_modules_process = @ink_with_modules_process@
+install_sh = @install_sh@
+installbuilddir = @installbuilddir@
+iocore_include_dirs = @iocore_include_dirs@
+ip_transparent = @ip_transparent@
+jemalloch = @jemalloch@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libgenh = @libgenh@
+localedir = @localedir@
+localstatedir = @localstatedir@
+logdir = @logdir@
+lzmah = @lzmah@
+machine_endianh = @machine_endianh@
+malloch = @malloch@
+mandir = @mandir@
+mathh = @mathh@
+max_api_stats = @max_api_stats@
+max_event_threads = @max_event_threads@
+max_host_name_len = @max_host_name_len@
+max_threads_per_type = @max_threads_per_type@
+mkdir_p = @mkdir_p@
+net_ppp_defsh = @net_ppp_defsh@
+netdbh = @netdbh@
+netinet_in_systmh = @netinet_in_systmh@
+netinet_inh = @netinet_inh@
+netinet_ip_icmph = @netinet_ip_icmph@
+netinet_iph = @netinet_iph@
+netinet_tcph = @netinet_tcph@
+oldincludedir = @oldincludedir@
+pcre_pcreh = @pcre_pcreh@
+pcreh = @pcreh@
+pdfdir = @pdfdir@
+pkgbindir = @pkgbindir@
+pkgcachedir = @pkgcachedir@
+pkgdocdir = @pkgdocdir@
+pkglocalstatedir = @pkglocalstatedir@
+pkglogdir = @pkglogdir@
+pkgpyexecdir = @pkgpyexecdir@
+pkgpythondir = @pkgpythondir@
+pkgruntimedir = @pkgruntimedir@
+pkgsbindir = @pkgsbindir@
+pkgsysconfdir = @pkgsysconfdir@
+pkgsysgroup = @pkgsysgroup@
+pkgsysuser = @pkgsysuser@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+pthread_nph = @pthread_nph@
+pyexecdir = @pyexecdir@
+pythondir = @pythondir@
+readline_readlineh = @readline_readlineh@
+rel_bindir = @rel_bindir@
+rel_cachedir = @rel_cachedir@
+rel_datadir = @rel_datadir@
+rel_docdir = @rel_docdir@
+rel_exec_prefix = @rel_exec_prefix@
+rel_includedir = @rel_includedir@
+rel_infodir = @rel_infodir@
+rel_installbuilddir = @rel_installbuilddir@
+rel_libdir = @rel_libdir@
+rel_libexecdir = @rel_libexecdir@
+rel_localstatedir = @rel_localstatedir@
+rel_logdir = @rel_logdir@
+rel_mandir = @rel_mandir@
+rel_prefix = @rel_prefix@
+rel_runtimedir = @rel_runtimedir@
+rel_sbindir = @rel_sbindir@
+rel_sysconfdir = @rel_sysconfdir@
+runtimedir = @runtimedir@
+sbindir = @sbindir@
+schedh = @schedh@
+sharedstatedir = @sharedstatedir@
+siginfoh = @siginfoh@
+srcdir = @srcdir@
+stroptsh = @stroptsh@
+sys_byteorderh = @sys_byteorderh@
+sys_cpuseth = @sys_cpuseth@
+sys_epollh = @sys_epollh@
+sys_eventh = @sys_eventh@
+sys_ioctlh = @sys_ioctlh@
+sys_mounth = @sys_mounth@
+sys_paramh = @sys_paramh@
+sys_pseth = @sys_pseth@
+sys_sockioh = @sys_sockioh@
+sys_sysctlh = @sys_sysctlh@
+sys_sysinfoh = @sys_sysinfoh@
+sys_sysmacrosh = @sys_sysmacrosh@
+sys_systeminfoh = @sys_systeminfoh@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+use_diags = @use_diags@
+use_epoll = @use_epoll@
+use_fast_sdk = @use_fast_sdk@
+use_freelist = @use_freelist@
+use_hwloc = @use_hwloc@
+use_kqueue = @use_kqueue@
+use_linux_native_aio = @use_linux_native_aio@
+use_port = @use_port@
+use_posix_cap = @use_posix_cap@
+use_reclaimable_freelist = @use_reclaimable_freelist@
+use_tls_alpn = @use_tls_alpn@
+use_tls_eckey = @use_tls_eckey@
+use_tls_npn = @use_tls_npn@
+use_tls_sni = @use_tls_sni@
+use_tproxy = @use_tproxy@
+valuesh = @valuesh@
+waith = @waith@
+zlibh = @zlibh@
+AM_CPPFLAGS = \
+  -I$(top_srcdir)/lib/records \
+  -I$(top_srcdir)/proxy \
+  -I$(top_srcdir)/mgmt \
+  -I$(top_srcdir)/mgmt/utils \
+  -I$(top_srcdir)/proxy/cache \
+  -I$(top_srcdir)/proxy/logging
+
+dist_bin_SCRIPTS = \
+  trafficserver
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign rc/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign rc/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+trafficserver: $(top_builddir)/config.status $(srcdir)/trafficserver.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+trafficserver.conf: $(top_builddir)/config.status $(srcdir)/trafficserver.conf.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+trafficserver.service: $(top_builddir)/config.status $(srcdir)/trafficserver.service.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+trafficserver.xml: $(top_builddir)/config.status $(srcdir)/trafficserver.xml.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+install-dist_binSCRIPTS: $(dist_bin_SCRIPTS)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_bin_SCRIPTS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  if test -f "$$d$$p"; then echo "$$d$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n' \
+	    -e 'h;s|.*|.|' \
+	    -e 'p;x;s,.*/,,;$(transform)' | sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1; } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) { files[d] = files[d] " " $$1; \
+	      if (++n[d] == $(am__install_max)) { \
+		print "f", d, files[d]; n[d] = 0; files[d] = "" } } \
+	    else { print "f", d "/" $$4, $$1 } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	     if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	     test -z "$$files" || { \
+	       echo " $(INSTALL_SCRIPT) $$files '$(DESTDIR)$(bindir)$$dir'"; \
+	       $(INSTALL_SCRIPT) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
+	     } \
+	; done
+
+uninstall-dist_binSCRIPTS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_bin_SCRIPTS)'; test -n "$(bindir)" || exit 0; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	       sed -e 's,.*/,,;$(transform)'`; \
+	dir='$(DESTDIR)$(bindir)'; $(am__uninstall_files_from_dir)
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(SCRIPTS)
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-dist_binSCRIPTS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-dist_binSCRIPTS
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	cscopelist-am ctags-am distclean distclean-generic \
+	distclean-libtool distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am \
+	install-dist_binSCRIPTS install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \
+	uninstall-am uninstall-dist_binSCRIPTS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/rc/solaris.txt b/rc/solaris.txt
new file mode 100644
index 00000000..04b29381
--- /dev/null
+++ b/rc/solaris.txt
@@ -0,0 +1,12 @@
+To setup Solaris 10+ traffic server service, import the traffic server service
+manifest XML file
+
+    # svccfg import trafficserver.xml
+
+To start the service, issue the following command:
+
+    # svcadm enable application/apache/trafficserver
+
+To stop the service, use this command:
+
+    # svcadm disable application/apache/trafficserver
diff --git a/rc/start_traffic_shell b/rc/start_traffic_shell
new file mode 100644
index 00000000..2a024f1b
--- /dev/null
+++ b/rc/start_traffic_shell
@@ -0,0 +1,55 @@
+#!/bin/sh
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+PATH=/usr/bin:/bin:/sbin:/usr/sbin:/etc:/usr/ucb:/usr/bsd:/usr/etc:/usr/local/bin; export PATH
+
+# Get system/environment
+# Identify operating system environment 
+ostype=`(uname -s) 2>/dev/null` || ostype=unknown
+osrelease=`(uname -r) 2>/dev/null` || osrelease=unknown
+uname_processor=`(uname -p) 2>/dev/null` || uname_processor=unknown  # Processor type
+uname_machine=`(uname -m) 2>/dev/null` || uname_machine=unknown  # Machine class
+
+#defaults for system commands/utilities
+WHOAMI=whoami
+AWK=awk
+HEAD=head
+LS=ls
+LN=ln
+
+InkHome="$ROOT"
+[ -z "$InkHome" ] && InkHome="$INST_ROOT";
+[ -z "$InkHome" ] && InkHome=`${HEAD} -1 /etc/traffic_server 2>/dev/null`
+[ -z "$InkHome" ] && InkHome="/home/trafficserver"
+
+ThisUser=`${WHOAMI} | ${AWK} '{print $1}'`
+${LN} -s /usr/lib/libreadline.so ${InkHome}/bin/libreadline.so.3 2> /dev/null
+${LN} -s /usr/lib/libncurses.so ${InkHome}/bin/libncurses.so.4 2> /dev/null
+InktomiUser=`${LS} -l ${InkHome}/bin/traffic_server 2>/dev/null |${AWK} '{print $3}'`
+
+argv=$@
+if [ -z "$TCL_LIBRARY" ]; then
+  TCL_LIBRARY="${InkHome}/bin/tshell_script"; export TCL_LIBRARY
+else
+  TCL_LIBRARY="${InkHome}/bin/tshell_script;$TCL_LIBRARY"; export TCL_LIBRARY
+fi
+MANPATH=${InkHome}/bin/tshell_script/man:$MANPATH
+export MANPATH
+LD_LIBRARY_PATH=${InkHome}/bin:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH
+exec ${InkHome}/bin/traffic_shell $argv
diff --git a/rc/trafficserver.conf.in b/rc/trafficserver.conf.in
new file mode 100644
index 00000000..3eb6671d
--- /dev/null
+++ b/rc/trafficserver.conf.in
@@ -0,0 +1,41 @@
+# trafficserver - Apache Traffic Server
+#
+# is a fast, scalable and extensible HTTP/1.1 compliant
+# caching proxy server.
+#
+# This config file is used for stopping and starting trafficserver
+# on upstart based systems. This is accomplished by dropping it in
+# /etc/init
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+description	"Apache Traffic Server"
+
+start on virtual-filesystems
+stop on runlevel [06]
+
+respawn
+
+pre-start script
+	if [ ! -d @exp_runtimedir@ ]
+	then
+		mkdir -p @exp_runtimedir@
+		chown @pkgsysuser@:@pkgsysgroup@ @exp_runtimedir@
+	fi
+end script
+
+exec @exp_bindir@/traffic_cop
diff --git a/rc/trafficserver.in b/rc/trafficserver.in
new file mode 100644
index 00000000..5f0c5f7f
--- /dev/null
+++ b/rc/trafficserver.in
@@ -0,0 +1,465 @@
+#!/bin/sh
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# chkconfig: - 90 10
+# description: Apache Traffic Server is a fast, scalable and extensible  \
+#             HTTP/1.1 compliant caching proxy server.
+# processname: traffic_cop traffic_manager traffic_server
+# config: /etc/trafficserver
+# config: /etc/sysconfig/trafficserver
+# pidfile: /var/run/trafficserver/cop.pid
+#
+# Template from /etc/init.d/skeleton on Ubuntu
+#
+### BEGIN INIT INFO
+# Provides:          Traffic Server
+# Required-Start:    $local_fs $remote_fs
+# Required-Stop:     $local_fs $remote_fs
+# Default-Start:     2 3 4 5
+# Default-Stop:      S 0 1 6
+# Short-Description: Startup/shutdown script for the Apache Traffic Server
+# Description:       Apache Traffic Server is fast, scalable and extensible
+#                    HTTP/1.1 compliant caching proxy server.
+### END INIT INFO
+
+# Fedora:
+#  When this file is installed as /etc/rc.d/init.d/trafficserver
+#  and added to the chkconfig system with `chkconfig --add trafficserver`
+#  then the default values of these variables can be overridden
+#  in the /etc/sysconfig/trafficserver file
+# Ubuntu:
+#  Values read from /etc/default/trafficserver
+
+TS_PACKAGE_NAME="@PACKAGE_NAME@"
+TS_PACKAGE_VERSION="@PACKAGE_VERSION@"
+TS_PACKAGE_BUGREPORT="@PACKAGE_BUGREPORT@"
+UNAME_S=$(uname -s)
+
+if [ -e /etc/SuSE-release ]; then
+    DISTRIB_ID="suse"
+elif [ -e /etc/fedora-release ]; then
+    DISTRIB_ID="fedora"
+elif [ -e /etc/redhat-release ]; then
+    DISTRIB_ID="redhat" # also exists on Fedora
+elif [ -e /etc/lsb-release ]; then
+    DISTRIB_ID="ubuntu"
+elif [ -e /etc/debian_version ]; then
+    DISTRIB_ID="debian" # also exists on Ubuntu
+elif [ -e /etc/slackware-version ]; then
+    DISTRIB_ID="slackware"
+elif [ "$UNAME_S" = "Darwin" ]; then
+    DISTRIB_ID="Darwin"
+elif [ "$UNAME_S" = "FreeBSD" ]; then
+    DISTRIB_ID="FreeBSD"
+fi
+
+# We might want to move over to use /etc/system-release for more distros?
+# I know at least Fedora supports it as well.
+if [ "" = "$DISTRIB_ID" -a -e /etc/system-release ]; then
+    case $(cat /etc/system-release) in
+	*Amazon*)
+	    DISTRIB_ID="redhat" # Amazon AMI is mostly like RHEL
+	    ;;
+	*)
+	    ;;
+    esac
+fi
+
+# /usr/bin/lsb_release -rd # Ubuntu release & description info
+
+HEAD=/usr/bin/head
+test -x $HEAD || HEAD=head
+ESED=/usr/bin/sed
+test -x $ESED || ESED=sed
+
+# Ubuntu: Do NOT "set -e"
+
+#Ubuntu:PATH should only include /usr/* if it runs after the mountnfs.sh script
+PATH=/usr/sbin:/usr/bin:/sbin:/bin
+DESC="start/stop Traffic Server"
+NAME=trafficserver
+SLEEP_TIME=5
+TS_PREFIX="@prefix@"
+
+TS_ROOT=${TS_ROOT:-$TS_PREFIX}
+# TS_BASE is offset inside the file system from where the layout starts
+# For standard installations TS_BASE will be empty
+eval TS_BASE="`echo $TS_ROOT | ${ESED} -e 's;@prefix@$;;'`"
+
+TC_NAME=${TC_NAME:-traffic_cop}
+TM_NAME=${TM_NAME:-traffic_manager}
+TS_NAME=${TS_NAME:-traffic_server}
+TC_DAEMON=${TC_DAEMON:-$TS_BASE@exp_bindir@/traffic_cop}
+TC_DAEMON_ARGS=""
+TM_DAEMON=${TM_DAEMON:-$TS_BASE@exp_bindir@/traffic_manager}
+TM_DAEMON_ARGS=""
+TS_DAEMON=${TS_DAEMON:-$TS_BASE@exp_bindir@/traffic_server}
+TS_DAEMON_ARGS=""
+TL_BINARY=${TL_BINARY:-$TS_BASE@exp_bindir@/traffic_line}
+TC_PIDFILE=${TC_PIDFILE:-$TS_BASE@exp_runtimedir@/cop.lock}
+TM_PIDFILE=${TM_PIDFILE:-$TS_BASE@exp_runtimedir@/manager.lock}
+TS_PIDFILE=${TS_PIDFILE:-$TS_BASE@exp_runtimedir@/server.lock}
+# number of times to retry check on pid lock file
+PIDFILE_CHECK_RETRIES=${PIDFILE_CHECK_RETRIES:-30}
+# stdout file of executable
+STDOUTLOG=${STDOUTLOG:-$TS_BASE@exp_logdir@/traffic_server.stdout}
+# stderr file of executable
+STDERRLOG=${STDERRLOG:-$TS_BASE@exp_logdir@/traffic_server.stderr}
+
+if [ -d /etc/rc.d/init.d ]; then
+    SCRIPTNAME=/etc/rc.d/init.d/$NAME # Fedora
+elif [ -d /etc/init.d ]; then
+    SCRIPTNAME=/etc/init.d/$NAME # Ubuntu
+elif [ "$DISTRIB_ID" = "Darwin" ]; then
+    SCRIPTNAME=$0 # Darwin
+elif [ "$DISTRIB_ID" = "FreeBSD" ]; then
+    SCRIPTNAME=$0 # FreeBSD 
+else
+    echo "This script needs to be ported to this OS"
+    exit 1
+fi
+
+# Exit if the package can not be found
+if [ ! -x "$TS_DAEMON" ]; then
+    echo "Error: Can not find $TS_DAEMON using TS_ROOT=$TS_ROOT"
+    echo "       Please set TS_ROOT to point to base installation."
+    exit 0
+fi
+
+# Ubuntu: Read configuration variable file if it is present
+test -r /etc/default/$NAME && . /etc/default/$NAME
+
+# RHEL/Fedora: Read configuration variable file if it is present
+test -r /etc/sysconfig/$NAME && . /etc/sysconfig/$NAME
+
+# Ubuntu: Load the VERBOSE setting and other rcS variables
+test -f /etc/default/rcS && . /etc/default/rcS
+
+# Suse: load rc.status
+test -f /etc/rc.status && . /etc/rc.status
+
+# Fedora: make avail helper functions 'action', 'killproc', 'status', etc
+test -f /etc/rc.d/init.d/functions && . /etc/rc.d/init.d/functions
+
+# Ubuntu: Define LSB log_* functions.
+#         Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
+test -f /lib/lsb/init-functions && . /lib/lsb/init-functions
+
+# FreeBSD
+# NB: FreeBSD's ports system installs a run script in /usr/local/etc/rc.d/ 
+# with native OS rc.subr(8) features.
+test -f /etc/rc.subr && . /etc/rc.subr
+
+if [ ! -d $TS_BASE@exp_runtimedir@ ]
+then
+	mkdir -p $TS_BASE@exp_runtimedir@
+	chown @pkgsysuser@:@pkgsysgroup@ $TS_BASE@exp_runtimedir@
+fi
+
+#
+# Fedora:
+#  launches $* in the background
+#  and checks if program creates its own pid lock file
+#  redirects stdout and stderr to files
+#  this function is meant to substitute 'daemon'
+#  because 'daemon' expects $1 to fork itself
+forkdaemon()
+{
+    local i=0
+
+    # launch in background, i.e. fork
+    # and redirect stdout and stderr to files
+    $* >> $STDOUTLOG 2>> $STDERRLOG &
+
+    while (( $i < $PIDFILE_CHECK_RETRIES ))
+    do
+        # check for regular file and size greater than 0
+        if [[ -f $TC_PIDFILE ]] && [[ -s $TC_PIDFILE ]]
+        then
+            success
+            return 0
+        fi
+
+        sleep 1  # zzz for 1 second
+        (( i++ ))
+
+    done
+
+    failure
+    return 1
+}
+
+
+#
+# Ubuntu: Function that starts the daemon/service
+#
+do_start()
+{
+  # Return
+  #   0 if daemon has been started
+  #   1 if daemon was already running
+  #   2 if daemon could not be started
+    start-stop-daemon --start --quiet --pidfile $TC_PIDFILE --exec $TC_DAEMON --test > /dev/null \
+        || return 1
+    start-stop-daemon --start --background --quiet --pidfile $TC_PIDFILE --exec $TC_DAEMON -- \
+        $TC_DAEMON_ARGS \
+        || return 2
+  # Add code here, if necessary, that waits for the process to be ready
+  # to handle requests from services started subsequently which depend
+  # on this one.  As a last resort, sleep for some time.
+    sleep 1
+    test -f "$TC_PIDFILE" || return 2
+}
+
+#
+# Ubuntu: Function that stops the daemon/service
+#
+do_stop()
+{
+  # Return
+  #   0 if daemon has been stopped
+  #   1 if daemon was already stopped
+  #   2 if daemon could not be stopped
+  #   other if a failure occurred
+    start-stop-daemon --stop --quiet --retry=QUIT/30/KILL/5 --pidfile $TC_PIDFILE --name $TC_NAME
+    RETVAL="$?"
+    test "$RETVAL" != 0 && return $RETVAL
+  # Wait for children to finish too if this is a daemon that forks
+  # and if the daemon is only ever run from this initscript.
+  # If the above conditions are not satisfied then add some other code
+  # that waits for the process to drop all resources that could be
+  # needed by services started subsequently.  A last resort is to
+  # sleep for some time.
+    start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $TC_DAEMON
+    RETVAL="$?"
+    test "$RETVAL" != 0 && return $RETVAL
+  # Need to stop the TM and TS also
+    start-stop-daemon --stop --quiet --oknodo --retry=QUIT/30/KILL/5 --pidfile $TM_PIDFILE --name $TM_NAME
+    RETVAL="$?"
+    test "$RETVAL" != 0 && return $RETVAL
+    start-stop-daemon --stop --quiet --oknodo --retry=QUIT/30/KILL/5 --pidfile $TS_PIDFILE --name $TS_NAME
+    RETVAL="$?"
+    test "$RETVAL" != 0 && return $RETVAL
+  # Many daemons don't delete their pidfiles when they exit.
+    rm -f $TC_PIDFILE
+    rm -f $TM_PIDFILE
+    rm -f $TS_PIDFILE
+    return "$RETVAL"
+}
+
+# main
+case "$1" in
+    start)
+        if [ "$DISTRIB_ID" = "ubuntu" -o "$DISTRIB_ID" = "debian" ] ; then
+            test "x$VERBOSE" != "xno" && log_daemon_msg "Starting ${TS_PACKAGE_NAME}" "$NAME"
+            retval=0
+            do_start
+            test "$?" -ne 0 -a "$?" -ne 1 && retval=1
+            test "x$VERBOSE" != "xno" && log_end_msg "$retval"
+            exit "$retval"
+        elif [ "$DISTRIB_ID" = "fedora" -o "$DISTRIB_ID" = "redhat" ]; then
+            action "Starting ${TS_PACKAGE_NAME}:" forkdaemon $TC_DAEMON $TC_DAEMON_ARGS
+        elif [ "$DISTRIB_ID" = "suse" ]; then
+            echo -n "Starting ${TS_PACKAGE_NAME}"
+            startproc -p $TC_PIDFILE $TC_DAEMON $TC_DAEMON_ARGS
+            rc_status -v
+        elif [ "$DISTRIB_ID" = "Darwin" ]; then
+            echo "Starting ${TS_PACKAGE_NAME}"
+            launchctl list $TC_NAME > /dev/null 2>&1 && exit 0
+            launchctl submit -l $TC_NAME -p $TC_DAEMON -o $STDOUTLOG -e $STDERRLOG -- $TC_DAEMON_ARGS
+        elif [ "$DISTRIB_ID" = "FreeBSD" ]; then
+            echo "Starting ${TS_PACKAGE_NAME}"
+            name="$TC_NAME"
+            command="/usr/sbin/daemon"
+            command_args="$TC_DAEMON $TC_DAEMON_ARGS"
+            pidfile="$TC_PIDFILE"
+            run_rc_command "$1"
+        else
+            echo "This script needs to be ported to this OS"
+            exit 1
+        fi
+        ;;
+    stop)
+        if [ "$DISTRIB_ID" = "ubuntu" -o "$DISTRIB_ID" = "debian" ] ; then
+            test "x$VERBOSE" != "xno" && log_daemon_msg "Stopping ${TS_PACKAGE_NAME}" "$NAME"
+            retval=0
+            do_stop
+            test "$?" -ne 0 -a "$?" -ne 1 && retval=1
+            test "x$VERBOSE" != "xno" && log_end_msg "$retval"
+            exit "$retval"
+        elif [ "$DISTRIB_ID" = "fedora" -o "$DISTRIB_ID" = "redhat" ]; then
+            action "Stopping ${TC_NAME}:" killproc -p $TC_PIDFILE $TC_DAEMON
+            action "Stopping ${TM_NAME}:" killproc -p $TM_PIDFILE $TM_DAEMON
+            action "Stopping ${TS_NAME}:" killproc -p $TS_PIDFILE $TS_DAEMON
+        elif [ "$DISTRIB_ID" = "suse" ]; then
+            echo -n "Stopping ${TC_NAME}"
+            killproc -p $TC_PIDFILE $TC_DAEMON
+            rc_status -v
+            echo -n "Stopping ${TM_NAME}"
+            killproc -p $TM_PIDFILE $TM_DAEMON
+            rc_status -v
+            echo -n "Stopping ${TS_NAME}"
+            killproc -p $TS_PIDFILE $TS_DAEMON
+            rc_status -v
+        elif [ "$DISTRIB_ID" = "Darwin" ]; then
+            echo "Stopping ${TS_PACKAGE_NAME}"
+            launchctl list $TC_NAME > /dev/null 2>&1 || exit 0
+            echo "Stopping ${TC_NAME}"
+            launchctl remove ${TC_NAME}
+            rm -f ${TC_PIDFILE}
+            echo "Stopping ${TM_NAME}"
+            kill $(cat $TM_PIDFILE)
+            rm -f ${TM_PIDFILE}
+            echo "Stopping ${TS_NAME}"
+            kill $(cat $TS_PIDFILE)
+            rm -f ${TS_PIDFILE}
+        elif [ "$DISTRIB_ID" = "FreeBSD" ]; then
+            echo "Stopping ${TS_PACKAGE_NAME}"
+            if [ -e "$TC_PIDFILE" ]; then 
+                kill $(cat $TC_PIDFILE)
+                rm -f ${TC_PIDFILE}
+            fi
+            if [ -e "$TM_PIDFILE" ]; then 
+                kill $(cat $TM_PIDFILE)
+                rm -f ${TM_PIDFILE}
+            fi
+        else
+            echo "This script needs to be ported to this OS"
+            exit 1
+        fi
+        ;;
+    reload|force-reload)
+        if [ "$DISTRIB_ID" = "ubuntu" -o "$DISTRIB_ID" = "debian" ] ; then
+            test "x$VERBOSE" != "xno" && log_daemon_msg "Reloading ${TS_PACKAGE_NAME}" "$NAME"
+            retval=0
+            $TL_BINARY -x
+            test "$?" -ne 0 -a "$?" -ne 1 && retval=1
+            test "x$VERBOSE" != "xno" && log_end_msg "$retval"
+            exit "$retval"
+        elif [ "$DISTRIB_ID" = "fedora" -o "$DISTRIB_ID" = "redhat" ]; then
+            action "Reloading ${NAME}:" $TL_BINARY -x
+        elif [ "$DISTRIB_ID" = "suse" ]; then
+            echo -n "Reloading ${NAME}"
+            $TL_BINARY -x
+            rc_status -v
+        elif [ "$DISTRIB_ID" = "Darwin" ]; then
+            echo "Reloading ${NAME}"
+            $TL_BINARY -x
+        elif [ "$DISTRIB_ID" = "FreeBSD" ]; then
+            echo "Reloading ${NAME}"
+            $TL_BINARY -x
+        else
+            echo "This script needs to be ported to this OS"
+            exit 1
+        fi
+        ;;
+    restart)
+        if [ "$DISTRIB_ID" = "ubuntu" -o "$DISTRIB_ID" = "debian" ] ; then
+      #
+      # If the "reload" option is implemented then remove the
+      # 'force-reload' alias
+      #
+            log_daemon_msg "Restarting ${TS_PACKAGE_NAME}" "$NAME"
+            do_stop
+            case "$?" in
+                0|1)
+                    sleep $SLEEP_TIME
+                    do_start
+                    case "$?" in
+                        0) log_end_msg 0 ;;
+                        1) log_end_msg 0 ;; # Daemons were already stopped
+                        *) log_end_msg 1 ;; # Failed to start
+                    esac
+                    ;;
+                *)
+            # Failed to stop
+                    log_end_msg 1
+                    ;;
+            esac
+        else
+      # This is the typical process for restart
+            sh $0 'stop'
+            sleep $SLEEP_TIME
+            sh $0 'start'
+        fi
+        ;;
+    status)
+        if [ "$DISTRIB_ID" = "fedora" -o "$DISTRIB_ID" = "redhat" ]; then
+            status -p $TC_PIDFILE $TC_NAME
+        elif [ "$DISTRIB_ID" = "ubuntu" -o "$DISTRIB_ID" = "debian" ] ; then
+            status_of_proc "$TC_DAEMON" "$TC_NAME" -p "$TC_PIDFILE" && exit 0 || exit $?
+        elif [  "$DISTRIB_ID" = "suse" ]; then
+            echo -n "Checking for service ${DM}: "
+            checkproc -p $TC_PIDFILE $TC_NAME
+            rc_status -v
+        elif [ "$DISTRIB_ID" = "Darwin" ]; then
+            /bin/echo -n "${TS_PACKAGE_NAME} is "
+            launchctl list $TC_NAME > /dev/null 2>&1
+            status=$?
+            [ $status -eq 0 ] || /bin/echo -n "not "
+            echo "running."
+        elif [ "$DISTRIB_ID" = "FreeBSD" ]; then
+            if pgrep $TM_NAME > /dev/null ; then 
+                echo "$TM_NAME running as pid `cat $TM_PIDFILE`" ; else 
+                echo "$TM_NAME not running" 
+            fi
+            if pgrep $TS_NAME > /dev/null ; then 
+                echo "$TS_NAME running as pid `cat $TS_PIDFILE`"; else 
+                echo "$TS_NAME not running" 
+            fi
+            if pgrep $TC_NAME > /dev/null ; then 
+                echo "$TC_NAME running as pid `cat $TC_PIDFILE`"; else 
+                echo "$TC_NAME not running" ; 
+            fi
+            exit $status
+        else
+            echo "This script needs to be ported to this OS"
+            exit 1
+        fi
+        ;;
+    condrestart)
+        if [ "$DISTRIB_ID" = "fedora" -o "$DISTRIB_ID" = "redhat" ]; then
+            if $0 'status'
+            then
+                sh $0 'stop'
+                sh $0 'start'
+            fi
+        else
+            echo "This script needs to be ported to this OS"
+            exit 1
+        fi
+        ;;
+    *)
+        if [ "$DISTRIB_ID" = "ubuntu" -o "$DISTRIB_ID" = "debian" ] ; then
+            echo "Usage: $SCRIPTNAME {start|stop|status|restart}" >&2
+        elif [ "$DISTRIB_ID" = "fedora" -o "$DISTRIB_ID" = "redhat" ]; then
+            echo "Usage: $0 {start|stop|status|restart|condrestart}"
+        elif [ "$DISTRIB_ID" = "suse" ]; then
+            echo "Usage: $0 {start|stop|restart|status}"
+        elif [ "$DISTRIB_ID" = "Darwin" ]; then
+            echo "Usage: $0 {start|stop|restart|status}"
+        elif [ "$DISTRIB_ID" = "FreeBSD" ]; then
+            echo "Usage: $0 Usage: (start|stop|restart|status)"
+            echo "NB: FreeBSD's ports system installs a rc script in"
+            echo "/usr/local/etc/rc.d/ with native rc.subr(8) features."
+        else
+            echo "This script needs to be ported to this OS"
+            exit 1
+        fi
+        exit 3
+        ;;
+esac
diff --git a/rc/trafficserver.service.in b/rc/trafficserver.service.in
new file mode 100644
index 00000000..90266805
--- /dev/null
+++ b/rc/trafficserver.service.in
@@ -0,0 +1,30 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+[Unit]
+Description=Apache Traffic Server is a fast, scalable and extensible caching proxy server.
+After=syslog.target network.target
+
+[Service]
+Type=simple
+EnvironmentFile=-/etc/sysconfig/trafficserver
+PIDFile=@exp_runtimedir@/cop.pid
+ExecStart=@exp_bindir@/traffic_cop $TC_DAEMON_ARGS
+ExecReload=@exp_bindir@/traffic_line -x
+
+[Install]
+WantedBy=multi-user.target
diff --git a/rc/trafficserver.xml.in b/rc/trafficserver.xml.in
new file mode 100644
index 00000000..c2fd5bbf
--- /dev/null
+++ b/rc/trafficserver.xml.in
@@ -0,0 +1,101 @@
+<?xml version="1.0"?><!-- $CVSHeader$ -->
+<!DOCTYPE service_bundle SYSTEM "/usr/share/lib/xml/dtd/service_bundle.dtd.1">
+<!--
+ This XML file is used for stopping and starting trafficserver using the
+ Solaris Service Management Facility.  See solaris.txt for more information
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+
+-->
+
+<service_bundle type='manifest' name='apache:trafficserver'>
+
+<service
+	name='application/apache/trafficserver'
+	type='service'
+	version='1'>
+
+	<create_default_instance enabled='false' />
+
+	<!--
+	  Wait for network interfaces to be initialized.
+	-->
+	<dependency name='network'
+		grouping='require_all'
+		restart_on='none'
+		type='service'>
+		<service_fmri value='svc:/milestone/network:default'/>
+	</dependency>
+
+	<!--
+	  Wait for all local filesystems to be mounted.
+	-->
+	<dependency name='filesystem-local'
+	    grouping='require_all'
+	    restart_on='none'
+	    type='service'>
+	    <service_fmri
+		value='svc:/system/filesystem/local:default'/>
+	</dependency>
+
+	<dependent
+		name='apache-trafficserver-user-server'
+		grouping='optional_all'
+		restart_on='none'>
+			<service_fmri
+			    value='svc:/milestone/multi-user-server' />
+	</dependent>
+
+	<exec_method
+		type='method'
+		name='start'
+		exec='@exp_bindir@/traffic_cop 2>&amp;1 &amp;'
+		timeout_seconds='120' />
+
+	<exec_method
+		type='method'
+		name='stop'
+		exec=':kill'
+		timeout_seconds='120' />
+
+	<property_group name='cmd_opts' type='application'>
+		<stability value='Evolving' />
+	</property_group>
+
+	<property_group name='startd' type='framework'>
+		<!-- sub-process core dumps shouldn't restart
+			session -->
+		<propval name='ignore_error' type='astring'
+			value='core,signal' />
+	</property_group>
+
+	<stability value='Evolving' />
+
+	<template>
+		<common_name>
+			<loctext xml:lang='C'>
+				Apache Traffic Server
+			</loctext>
+		</common_name>
+		<documentation>
+			<doc_link name='trafficserver.apache.org'
+				uri='http://trafficserver.apache.org/docs' />
+		</documentation>
+	</template>
+</service>
+
+</service_bundle>
diff --git a/tools/Makefile.am b/tools/Makefile.am
new file mode 100644
index 00000000..c13b81fb
--- /dev/null
+++ b/tools/Makefile.am
@@ -0,0 +1,50 @@
+#
+# Top-level Makefile.am for Traffic Server.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
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+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
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index 00000000..45d49fa0
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+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS) $(SCRIPTS)
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f http_load/$(DEPDIR)/$(am__dirstamp)
+	-rm -f http_load/$(am__dirstamp)
+	-rm -f jtest/$(DEPDIR)/$(am__dirstamp)
+	-rm -f jtest/$(am__dirstamp)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool \
+	clean-noinstPROGRAMS mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf http_load/$(DEPDIR) jtest/$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS install-binSCRIPTS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf http_load/$(DEPDIR) jtest/$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean \
+	clean-binPROGRAMS clean-generic clean-libtool \
+	clean-noinstPROGRAMS cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-binPROGRAMS install-binSCRIPTS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am uninstall-binPROGRAMS \
+	uninstall-binSCRIPTS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tools/apichecker.pl b/tools/apichecker.pl
new file mode 100755
index 00000000..26563c7e
--- /dev/null
+++ b/tools/apichecker.pl
@@ -0,0 +1,525 @@
+#!/bin/env perl
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+use warnings;
+use strict;
+use Carp;
+
+require 5.006;
+
+
+
+#
+# Check if the line has an INK* to TS* change requirement
+#
+# tsapi const struct sockaddr_storage *INKHttpTxnClientSockAddrGet(TSHttpTxn txnp);
+my %INK_EXCLUDES = (
+  "INKSTAT_TYPE_INT64" => 1,
+  "INKSTAT_TYPE_FLOAT" => 1,
+  "INKStatTypes" => 1,
+  "INKStat" => 1,
+  "INKCoupledStat" => 1,
+  "INKStatCreate" => 1,
+  "INKStatIntAddTo" => 1,
+  "INKStatFloatAddTo" => 1,
+  "INKStatDecrement" => 1,
+  "INKStatIncrement" => 1,
+  "INKStatIntGet" => 1,
+  "INKStatFloatGet" => 1,
+  "INKStatIntSet" => 1,
+  "INKStatFloatSet" => 1,
+  "INKStatCoupledGlobalCategoryCreate" => 1,
+  "INKStatCoupledLocalCopyCreate" => 1,
+  "INKStatCoupledLocalCopyDestroy" => 1,
+  "INKStatCoupledGlobalAdd" => 1,
+  "INKStatCoupledLocalAdd" => 1,
+  "INKStatsCoupledUpdate" => 1,
+  "INKStatCreateV2" => 1,
+  "INKStatIncrementV2" => 1,
+  "INKStatIncrementByNameV2" => 1,
+  "INKStatDecrementV2" => 1,
+  "INKStatDecrementByNameV2" => 1,
+  "INKStatGetCurrentV2" => 1,
+  "INKStatGetCurrentByNameV2" => 1,
+  "INKStatGetV2" => 1,
+  "INKStatGetByNameV2" => 1,
+  "INKMimeFieldCreate" => 1,
+  "INKMimeFieldDestroy" => 1,
+  "INKMimeFieldCopy" => 1,
+  "INKMimeFieldCopyValues" => 1,
+  "INKMimeFieldNext" => 1,
+  "INKMimeFieldLengthGet" => 1,
+  "INKMimeFieldNameGet" => 1,
+  "INKMimeFieldNameSet" => 1,
+  "INKMimeFieldValuesClear" => 1,
+  "INKMimeFieldValuesCount" => 1,
+  "INKMimeFieldValueGet" => 1,
+  "INKMimeFieldValueGetInt" => 1,
+  "INKMimeFieldValueGetUint" => 1,
+  "INKMimeFieldValueGetDate" => 1,
+  "INKMimeFieldValueSet" => 1,
+  "INKMimeFieldValueSetInt" => 1,
+  "INKMimeFieldValueSetUint" => 1,
+  "INKMimeFieldValueSetDate" => 1,
+  "INKMimeFieldValueAppend" => 1,
+  "INKMimeFieldValueInsert" => 1,
+  "INKMimeFieldValueInsertInt" => 1,
+  "INKMimeFieldValueInsertUint" => 1,
+  "INKMimeFieldValueInsertDate" => 1,
+  "INKMimeFieldValueDelete" => 1,
+  "INKMimeHdrFieldValueSet" => 1,
+  "INKMimeHdrFieldValueGet" => 1,
+  "INKMimeHdrFieldInsert" => 1,
+  "INKMimeHdrFieldDelete" => 1,
+  "INKMutexTryLock" => 1,
+  "INKMBufferDataSet" => 1,
+  "INKMBufferDataGet" => 1,
+  "INKMBufferLengthGet" => 1,
+  "INKMBufferRef" => 1,
+  "INKMBufferUnref" => 1,
+  "INKMBufferCompress" => 1,
+  "INKIOBufferDataCreate" => 1,
+  "INKIOBufferBlockCreate" => 1,
+  "INKIOBufferAppend" => 1,
+  "INKCacheHttpInfoCreate" => 1,
+  "INKCacheHttpInfoReqGet" => 1,
+  "INKCacheHttpInfoRespGet" => 1,
+  "INKCacheHttpInfoReqSet" => 1,
+  "INKCacheHttpInfoRespSet" => 1,
+  "INKCacheHttpInfoKeySet" => 1,
+  "INKCacheHttpInfoSizeSet" => 1,
+  "INKCacheHttpInfoVector" => 1,
+);
+
+sub ink2ts {
+  my $tokens = shift || return 0;
+  my $line = shift || return;
+  my $ret = 0;
+
+  foreach my $tok (@{$tokens}) {
+    next if $INK_EXCLUDES{$tok};
+    if ($tok =~ /^INK/) {
+      if ($tok eq "INK_ERROR_PTR") {
+        print "\t--> INK_ERROR_PTR is not used as of v3.0, but should be replaced with TS_ERROR_PTR in v2.1.x\n";
+      } else {
+        my $new = $tok;
+
+        $new =~ s/INK/TS/;
+        print "\t--> $tok() has changed to $new()\n";
+      }
+      $ret = 1;
+    }
+  }
+
+  return $ret;
+}
+
+# ts/ts.h warnings
+my $W_TSRETURNCODE = "returns TSReturnCode, check for == TS_SUCCESS (and not 0|1)";
+my $W_RETURN_DIRECT = "returns the value directly, it can not fail (don't check for TS_ERROR)";
+my $W_TSPARSERESULT = "returns TSParseResult, do not check for e.g. TS_ERROR";
+my $W_OUTPUT = "provides the return value as an output parameter (pass a non-NULL pointer)";
+my $W_MLOC_OUTPUT = "provides the return TSMLoc as an output parameter (pass a non-NULL pointer)";
+my $W_VOID_RETURN = "returns void, it can never fail";
+my $W_VOID_PTR_RETURN = "returns a void pointer directly, it can never fail";
+my $W_INT = "returns the integer directly, it should not be compared to TS_ERROR";
+my $W_UNSIGNED_INT = "returns the unsigned integer directly, it should not be compared to TS_ERROR";
+my $W_CHAR_NULL = "returns the char* pointer directly, it can be NULL";
+my $W_CHAR_NOT_NULL = "returns the char* pointer directly, it can never be NULL";
+my $W_TIME_T = "returns the time_t directly";
+my $W_NOT_NULL_LEN = "the length parameter can no longer be a NULL pointer";
+my $W_TSCACHEKEY = "returns a TSCacheKey directly";
+my $W_ARG_CHANGES = "the argument list or types have changes";
+my $W_TSAIOCALLBACK = "uses the new TSAIOCallback data type";
+my $W_DEPRECATED = "is deprecated, do not use (ever!)";
+my $W_NO_NULL_LENGTH = "1";
+my $W_NO_ERROR_PTR = "2";
+my $W_RENAMED = "3";
+# ts/remap.h warnings
+my $W_IHANDLE = "is deprecated, use a plain void* instead";
+my $W_TSREMAPSTATUS = "returns TSRemapStatus, return appropriate message";
+
+my %RENAMED = (
+  "tsremap_init" => "TSRemapInit",
+  "tsremap_done" => "TSRemapDone",
+  "tsremap_new_instance" => "TSRemapNewInstance",
+  "tsremap_delete_instance" => "TSRemapDeleteInstance",
+  "tsremap_remap" => "TSRemapDoRemap",
+  "tsremap_os_response" => "TSRemapOSResponse",
+  "rhandle" => "TSHttpTxn",
+  "INKStatCreateV2" => "TSStatCreate",
+  "INKStatIncrementV2" => "TSStatIntIncrement",
+  "INKStatIncrementByNameV2" => "TSStatIntIncrement",
+  "INKStatDecrementV2" => "TSStatIntDecrement",
+  "INKStatDecrementByNameV2" => "TSStatIntDecrement",
+  "INKStatGetCurrentV2" => "TSStatIntGet",
+  "INKStatGetCurrentByNameV2" => "TSStatIntGet",
+  "INKStatGetV2" => "TSStatIntGet",
+  "INKStatGetByNameV2" => "TSStatIntGet",
+  "INKMimeFieldCreate" => "TSMimeHdrFieldCreate",
+  "INKMimeFieldDestroy" => "TSMimeHdrFieldDestroy",
+  "INKMimeFieldCopy" => "TSMimeHdrFieldCopy",
+  "INKMimeFieldCopyValues" => "TSMimeHdrFieldCopyValues",
+  "INKMimeFieldNext" => "TSMimeHdrFieldNext",
+  "INKMimeFieldLengthGet" => "TSMimeHdrFieldLengthGet",
+  "INKMimeFieldNameGet" => "TSMimeHdrFieldNameGet",
+  "INKMimeFieldNameSet" => "TSMimeHdrFieldNameSet",
+  "INKMimeFieldValuesClear" => "TSMimeHdrFieldValuesClear",
+  "INKMimeFieldValuesCount" => "TSMimeHdrFieldValuesCount",
+  "INKMimeHdrFieldValueGet" => "TSMimeHdrFieldValueStringGet",
+  "INKMimeFieldValueGet" => "TSMimeHdrFieldValueStringGet",
+  "INKMimeFieldValueGetInt" => "TSMimeHdrFieldValueIntGet",
+  "INKMimeFieldValueGetUint" => "TSMimeHdrFieldValueUintGet",
+  "INKMimeFieldValueGetDate" => "TSMimeHdrFieldValueDateGet",
+  "INKMimeFieldValueSet" => "TSMimeHdrFieldValueStringSet",
+  "TSMimeHdrFieldValueSet" => "TSMimeHdrFieldValueStringSet",
+  "INKMimeFieldValueSetInt" => "TSMimeHdrFieldValueIntSet",
+  "INKMimeFieldValueSetUint" => "TSMimeHdrFieldValueUintSet",
+  "INKMimeFieldValueSetDate" => "TSMimeHdrFieldValueDateSet",
+  "INKMimeFieldValueAppend" => "TSMimeHdrFieldValueAppend",
+  "INKMimeFieldValueInsert" => "TSMimeHdrFieldValueStringInsert",
+  "INKMimeFieldValueInsertInt" => "TSMimeHdrFieldValueIntInsert",
+  "INKMimeFieldValueInsertUint" => "TSMimeHdrFieldValueUintInsert",
+  "INKMimeFieldValueInsertDate" => "TSMimeHdrFieldValueDateInsert",
+  "INKMimeFieldValueDelete" => "TSMimeHdrFieldValueDelete",
+  "INKMimeHdrFieldInsert" => "TSMimeHdrFieldAppend",
+  "INKMimeHdrFieldDelete" => "TSMimeHdrFieldDestroy",
+  "INKMutexTryLock" =>  "TSMutexLockTry",
+  "INKIOBufferDataCreate" => "TSIOBufferCreate",
+  "TSIOBufferDataCreate" => "TSIOBufferCreate",
+);
+
+my %TWO_2_THREE = (
+  "TSPluginRegister" => [$W_TSRETURNCODE],
+  "TSUrlCreate" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSUrlClone" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSUrlPrint" => [$W_VOID_RETURN],
+  "TSUrlParse" => [$W_TSPARSERESULT],
+  "TSMimeParserClear" => [$W_VOID_RETURN],
+  "TSMimeParserDestroy" => [$W_VOID_RETURN],
+  "TSMimeHdrCreate" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSMimeHdrClone" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSMimeHdrPrint" => [$W_VOID_RETURN],
+  "TSMimeHdrParse" => [$W_TSPARSERESULT],
+  "TSMimeHdrFieldCreate" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSMimeHdrFieldCreateNamed" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSMimeHdrFieldClone" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSMimeHdrFieldValueStringGet" => [$W_CHAR_NOT_NULL],
+  "TSMimeHdrFieldValueIntGet" => [$W_INT],
+  "TSMimeHdrFieldValueUintGet" => [$W_INT],
+  "TSMimeHdrFieldValueDateGet" => [$W_TIME_T],
+  "TSHttpParserClear" => [$W_VOID_RETURN],
+  "TSHttpParserDestroy" => [$W_VOID_RETURN],
+  "TSHttpHdrDestroy" => [$W_VOID_RETURN],
+  "TSHttpHdrClone" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSHttpHdrPrint" => [$W_VOID_RETURN],
+  "TSHttpHdrParseReq" => [$W_TSPARSERESULT],
+  "TSHttpHdrParseResp" => [$W_TSPARSERESULT],
+  "TSHttpHdrUrlGet" => [$W_TSRETURNCODE, $W_MLOC_OUTPUT],
+  "TSThreadDestroy" => [$W_VOID_RETURN],
+  "TSMutexLock" => [$W_VOID_RETURN],
+  "TSMutexLockTry" => [$W_TSRETURNCODE],
+  "TSMutexUnlock" => [$W_VOID_RETURN],
+  "TSCacheKeyCreate" => [$W_TSCACHEKEY],
+  "TSMgmtIntGet" => [$W_TSRETURNCODE, $W_OUTPUT],
+  "TSMgmtCounterGet" => [$W_TSRETURNCODE, $W_OUTPUT],
+  "TSMgmtFloatGet" => [$W_TSRETURNCODE, $W_OUTPUT],
+  "TSMgmtStringGet" => [$W_TSRETURNCODE, $W_OUTPUT],
+  "TSContDestroy" => [$W_VOID_RETURN],
+  "TSContDataSet" => [$W_VOID_RETURN],
+  "TSContDataSet" => [$W_VOID_RETURN],
+  "TSHttpHookAdd" => [$W_VOID_RETURN],
+  "TSHttpSsnHookAdd" => [$W_VOID_RETURN],
+  "TSHttpSsnReenable" => [$W_VOID_RETURN],
+  "TSHttpSsnTransactionCount" => [$W_INT],
+  "TSHttpTxnHookAdd" => [$W_VOID_RETURN],
+  "TSHttpTxnClientReqGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnClientRespGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnServerReqGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnServerRespGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnCachedReqGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnCachedRespGet" => [$W_TSRETURNCODE],
+  "TSFetchPageRespGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnTransformRespGet" => [$W_TSRETURNCODE],
+  "TSHttpTxnClientFdGet" => [$W_TSRETURNCODE, $W_OUTPUT],
+  "TSHttpTxnErrorBodySet" => [$W_VOID_RETURN],
+  "TSHttpTxnParentProxySet" => [$W_VOID_RETURN],
+  "TSHttpTxnUntransformedRespCache" => [$W_VOID_RETURN],
+  "TSHttpTxnTransformedRespCache" => [$W_VOID_RETURN],
+  "TSHttpTxnReenable" => [$W_VOID_RETURN],
+  "TSHttpTxnArgSet" => [$W_VOID_RETURN],
+  "TSHttpTxnArgGet" => [$W_VOID_PTR_RETURN],
+  "TSHttpSsnArgSet" => [$W_VOID_RETURN],
+  "TSHttpSsnArgGet" => [$W_VOID_PTR_RETURN],
+  "TSHttpTxnSetHttpRetBody" => [$W_DEPRECATED],
+  "TSHttpTxnSetHttpRetStatus" => [$W_VOID_RETURN],
+  "TSHttpTxnActiveTimeoutSet" => [$W_VOID_RETURN],
+  "TSHttpTxnConnectTimeoutSet" => [$W_VOID_RETURN],
+  "TSHttpTxnDNSTimeoutSet" => [$W_VOID_RETURN],
+  "TSHttpTxnNoActivityTimeoutSet" => [$W_VOID_RETURN],
+  "TSHttpTxnIntercept" => [$W_VOID_RETURN],
+  "TSHttpTxnServerIntercept" => [$W_VOID_RETURN],
+  "TSHttpConnect" => [$W_RETURN_DIRECT],
+  "TSFetchUrl" => [$W_VOID_RETURN],
+  "TSFetchPages" => [$W_VOID_RETURN],
+  "TSHttpIsInternalRequest" => [$W_TSRETURNCODE],
+  "TSHttpAltInfoQualitySet" => [$W_VOID_RETURN],
+  "TSActionCancel" => [$W_VOID_RETURN],
+  "TSVConnClose" => [$W_VOID_RETURN],
+  "TSVConnAbort" => [$W_VOID_RETURN],
+  "TSVConnShutdown" => [$W_VOID_RETURN],
+  "TSVConnCacheObjectSizeGet" => [$W_RETURN_DIRECT],
+  "TSVIOReenable" => [$W_VOID_RETURN],
+  "TSVIONBytesSet" => [$W_VOID_RETURN],
+  "TSVIONDoneSet" => [$W_VOID_RETURN],
+  "TSIOBufferWaterMarkGet" => [$W_RETURN_DIRECT],
+  "TSIOBufferWaterMarkSet" => [$W_VOID_RETURN],
+  "TSIOBufferDestroy" => [$W_VOID_RETURN],
+  "TSIOBufferProduce" => [$W_VOID_RETURN],
+  "TSIOBufferReaderFree" => [$W_VOID_RETURN],
+  "TSIOBufferReaderConsume" => [$W_VOID_RETURN],
+  "TSStatIntIncrement" => [$W_VOID_RETURN],
+  "TSStatIntDecrement" => [$W_VOID_RETURN],
+  "TSStatIntGet" => [$W_RETURN_DIRECT],
+  "TSStatIntSet" => [$W_VOID_RETURN],
+  "TSStatFindName" => [$W_TSRETURNCODE, $W_OUTPUT],
+  "TSTextLogObjectFlush" => [$W_VOID_RETURN],
+  "TSTextLogObjectHeaderSet" => [$W_VOID_RETURN],
+  "TSTextLogObjectRollingEnabledSet" => [$W_VOID_RETURN],
+  "TSTextLogObjectRollingIntervalSecSet" => [$W_VOID_RETURN],
+  "TSTextLogObjectRollingOffsetHrSet" => [$W_VOID_RETURN],
+  "TSHttpTxnAborted" => [$W_TSRETURNCODE],
+  "TSHttpTxnClientReqHdrBytesGet" => [$W_RETURN_DIRECT],
+  "TSHttpTxnClientReqBodyBytesGet" => [$W_RETURN_DIRECT],
+  "TSHttpTxnServerReqHdrBytesGet" => [$W_RETURN_DIRECT],
+  "TSHttpTxnServerReqBodyBytesGet" => [$W_RETURN_DIRECT],
+  "TSHttpTxnPushedRespHdrBytesGet" => [$W_RETURN_DIRECT],
+  "TSHttpTxnPushedRespBodyBytesGet" => [$W_RETURN_DIRECT],
+  "TSSkipRemappingSet" => [$W_VOID_RETURN],
+  "TSRedirectUrlSet" => [$W_VOID_RETURN],
+  "TSHttpCurrentClientConnectionsGet" => [$W_RETURN_DIRECT],
+  "TSHttpCurrentActiveClientConnectionsGet" => [$W_RETURN_DIRECT],
+  "TSHttpCurrentIdleClientConnectionsGet" => [$W_RETURN_DIRECT],
+  "TSHttpCurrentCacheConnectionsGet" => [$W_RETURN_DIRECT],
+  "TSHttpCurrentServerConnectionsGet" => [$W_RETURN_DIRECT],
+  "TSUrlStringGet" => [$W_NO_NULL_LENGTH],
+  "TSHttpTxnEffectiveUrlStringGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlUserGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlPasswordGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlHostGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlPathGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlHttpParamsGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlHttpQueryGet" => [$W_NO_NULL_LENGTH],
+  "TSUrlHttpFragmentGet" => [$W_NO_NULL_LENGTH],
+  "TSMimeHdrFieldNameGet" => [$W_NO_NULL_LENGTH],
+  "TSHttpHdrMethodGet" => [$W_NO_NULL_LENGTH],
+  "TSHttpHdrReasonGet" => [$W_NO_NULL_LENGTH],
+  "TSFetchRespGet" => [$W_NO_NULL_LENGTH],
+  "TSHttpTxnConfigStringGet" => [$W_NO_NULL_LENGTH],
+  "TS_ERROR_PTR" => [$W_NO_ERROR_PTR],
+  "TSAIOBufGet" => [$W_TSAIOCALLBACK],
+  "TSAIONBytesGet" => [$W_TSAIOCALLBACK],
+  # Remap API changes
+  "TSREMAP_INTERFACE" => [$W_DEPRECATED],
+  "tsremap_interface" => [$W_DEPRECATED],
+  "fp_tsremap_interface" => [$W_DEPRECATED],
+  "TSREMAP_FUNCNAME_INIT" => [$W_DEPRECATED],
+  "TSREMAP_FUNCNAME_DONE" => [$W_DEPRECATED],
+  "TSREMAP_FUNCNAME_NEW_INSTANCE" => [$W_DEPRECATED],
+  "TSREMAP_FUNCNAME_DELETE_INSTANCE" => [$W_DEPRECATED],
+  "TSREMAP_FUNCNAME_REMAP" => [$W_DEPRECATED],
+  "TSREMAP_FUNCNAME_OS_RESPONSE" => [$W_DEPRECATED],
+  "base_handle" => [$W_DEPRECATED],
+  "ihandle" => [$W_IHANDLE],
+  "rhandle" => [$W_RENAMED],
+  "tsremap_init" => [$W_RENAMED, $W_TSRETURNCODE],
+  "tsremap_done" =>  [$W_RENAMED],
+  "tsremap_new_instance" =>  [$W_RENAMED, $W_TSRETURNCODE],
+  "tsremap_delete_instance" =>  [$W_RENAMED],
+  "tsremap_remap" =>  [$W_RENAMED, $W_TSREMAPSTATUS],
+  "tsremap_os_response" => [$W_RENAMED],
+  "INKStatCreateV2" => [$W_RENAMED],
+  "INKStatIncrementV2" => [$W_RENAMED],
+  "INKStatIncrementByNameV2" => [$W_RENAMED],
+  "INKStatDecrementV2" => [$W_RENAMED],
+  "INKStatDecrementByNameV2" => [$W_RENAMED],
+  "INKStatGetCurrentV2" => [$W_RENAMED],
+  "INKStatGetCurrentByNameV2" => [$W_RENAMED],
+  "INKStatGetV2" => [$W_RENAMED],
+  "INKStatGetByNameV2" => [$W_RENAMED],
+  "orig_url" => [$W_DEPRECATED],
+  "orig_url_size" => [$W_DEPRECATED],
+  "request_port" =>  [$W_DEPRECATED],
+  "remap_from_port" =>  [$W_DEPRECATED],
+  "remap_to_port" =>  [$W_DEPRECATED],
+  "request_host" =>  [$W_DEPRECATED],
+  "remap_from_host" =>  [$W_DEPRECATED],
+  "remap_to_host" =>  [$W_DEPRECATED],
+  "request_path" =>  [$W_DEPRECATED],
+  "remap_from_path" =>  [$W_DEPRECATED],
+  "remap_to_path" =>  [$W_DEPRECATED],
+  "request_cookie" =>  [$W_DEPRECATED],
+  "request_matrix" =>  [$W_DEPRECATED],
+  "from_scheme" =>  [$W_DEPRECATED],
+  "to_scheme" =>  [$W_DEPRECATED],
+  "request_query" =>  [$W_DEPRECATED],
+  "new_host" =>  [$W_DEPRECATED],
+  "new_port" =>  [$W_DEPRECATED],
+  "new_path" =>  [$W_DEPRECATED],
+  "new_query" =>  [$W_DEPRECATED],
+  "new_matrix" =>  [$W_DEPRECATED],
+  "redirect_url" =>  [$W_DEPRECATED],
+  "require_ssl" =>  [$W_DEPRECATED],
+  "INKMimeFieldCreate" => [$W_RENAMED],
+  "INKMimeFieldDestroy" => [$W_RENAMED],
+  "INKMimeFieldCopy" => [$W_RENAMED],
+  "INKMimeFieldCopyValues" => [$W_RENAMED],
+  "INKMimeFieldNext" => [$W_RENAMED],
+  "INKMimeFieldLengthGet" => [$W_RENAMED],
+  "INKMimeFieldNameGet" => [$W_RENAMED],
+  "INKMimeFieldNameSet" => [$W_RENAMED],
+  "INKMimeFieldValuesClear" => [$W_RENAMED],
+  "INKMimeFieldValuesCount" => [$W_RENAMED],
+  "INKMimeFieldValueGet" => [$W_RENAMED],
+  "INKMimeFieldValueGetInt" => [$W_RENAMED],
+  "INKMimeFieldValueGetUint" => [$W_RENAMED],
+  "INKMimeFieldValueGetDate" => [$W_RENAMED],
+  "INKMimeFieldValueSet" => [$W_RENAMED],
+  "INKMimeFieldValueSetInt" => [$W_RENAMED],
+  "INKMimeFieldValueSetUint" => [$W_RENAMED],
+  "INKMimeFieldValueSetDate" => [$W_RENAMED],
+  "INKMimeFieldValueAppend" => [$W_RENAMED],
+  "INKMimeFieldValueInsert" => [$W_RENAMED],
+  "INKMimeFieldValueInsertInt" => [$W_RENAMED],
+  "INKMimeFieldValueInsertUint" => [$W_RENAMED],
+  "INKMimeFieldValueInsertDate" => [$W_RENAMED],
+  "INKMimeFieldValueDelete" => [$W_RENAMED],
+  "INKMimeHdrFieldValueGet" => [$W_RENAMED],
+  "INKMimeHdrFieldValueSet" => [$W_RENAMED],
+  "INKMimeHdrFieldInsert" => [$W_RENAMED],
+  "INKMimeHdrFieldDelete" => [$W_RENAMED],
+  "INKMutexTryLock" => [$W_RENAMED],
+  "INKMBufferDataSet" => [$W_DEPRECATED],
+  "INKMBufferDataGet" => [$W_DEPRECATED],
+  "INKMBufferLengthGet" => [$W_DEPRECATED],
+  "INKMBufferRef" => [$W_DEPRECATED],
+  "INKMBufferUnref" => [$W_DEPRECATED],
+  "INKMBufferCompress" => [$W_DEPRECATED],
+  "INKIOBufferDataCreate" => [$W_RENAMED],
+  "TSIOBufferDataCreate" => [$W_RENAMED],
+  "INKIOBufferBlockCreate" => [$W_DEPRECATED],
+  "TSIOBufferBlockCreate" => [$W_DEPRECATED],
+  "INKIOBufferAppend" => [$W_DEPRECATED],
+  "TSIOBufferAppend" => [$W_DEPRECATED],
+  "INKCacheHttpInfoCreate" => [$W_DEPRECATED],
+  "INKCacheHttpInfoReqGet" => [$W_DEPRECATED],
+  "INKCacheHttpInfoRespGet" => [$W_DEPRECATED],
+  "INKCacheHttpInfoReqSet" => [$W_DEPRECATED],
+  "INKCacheHttpInfoRespSet" => [$W_DEPRECATED],
+  "INKCacheHttpInfoKeySet" => [$W_DEPRECATED],
+  "INKCacheHttpInfoSizeSet" => [$W_DEPRECATED],
+  "INKCacheHttpInfoVector" => [$W_DEPRECATED],
+);
+
+
+#
+# Warning messages related to SDK v2 to v3 migration
+#
+sub header_write {
+  my $do_it = shift;
+  my $tok = shift;
+
+  print "--> $tok <--\n" if $do_it;
+  return 0;
+}
+
+sub two2three {
+  my $tokens = shift || return;
+  my $line = shift || return;
+  my $ret = 0;
+
+  return 0 if $line =~ /TSDebug/;
+  foreach my $tok (@{$tokens}) {
+    my $hdr_write = 1;
+    my $warns = $TWO_2_THREE{$tok};
+    next unless $warns;
+
+    foreach my $w (@{$warns}) {
+      if ($w eq $W_NO_NULL_LENGTH) {
+        if ($line =~ /NULL/) {
+          print "    + The length output parameter can not be NULL\n";
+          $hdr_write = header_write($hdr_write, $tok);
+          $ret = 1;
+        }
+      } elsif ($w eq $W_NO_ERROR_PTR) {
+        $hdr_write = header_write($hdr_write, "TS_ERROR_PTR");
+        print "    + no APIs can return TS_ERROR_PTR, you should not compare it\n";
+        $ret = 1;
+      } elsif ($w eq $W_RENAMED) {
+        $hdr_write = header_write($hdr_write, $tok);
+        print "    + is renamed to $RENAMED{$tok}\n";
+        $ret = 1;
+      } else {
+        $hdr_write = header_write($hdr_write, $tok);
+        print "    + $w\n";
+        $ret = 1;
+      }
+    }
+  }
+
+  return $ret;
+}
+
+
+#
+# Main processor of the source code
+#
+sub process {
+  my $file = shift || return;
+  my $line = 1;
+
+  if (!open(FILE, "<$file")) {
+    carp "Can't open file $file";
+    return;
+  }
+
+  while (<FILE>) {
+    my @tokens = split(/[^a-zA-Z0-9_\.]/);
+
+    if (ink2ts(\@tokens, $_)) {
+      print "$file:$line:$_\n";
+    }
+
+    if (two2three(\@tokens, $_)) {
+      print "$file:$line:$_\n";
+    }
+
+    ++$line;
+  }
+
+  close(FILE);
+}
+
+
+#
+# Loop over all files provided
+#
+foreach my $file (@ARGV) {
+  process($file);
+}
diff --git a/tools/http_load/README b/tools/http_load/README
new file mode 100644
index 00000000..8405f9a7
--- /dev/null
+++ b/tools/http_load/README
@@ -0,0 +1,7 @@
+A ATS version of http_load with added features and now using epoll().
+
+Version 1.0.1 (6/28/11)
+ - Added rpath to LDFLAGS
+
+Version 1.0.0 (2/22/09)
+ - First version of http_load.
diff --git a/tools/http_load/http_load.c b/tools/http_load/http_load.c
new file mode 100644
index 00000000..8c860299
--- /dev/null
+++ b/tools/http_load/http_load.c
@@ -0,0 +1,3015 @@
+/* http_load - multiprocessing http test client
+**
+** Copyright © 1998,1999,2001 by Jef Poskanzer <jef@mail.acme.com>.
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+** SUCH DAMAGE.
+*/
+
+#include "ink_config.h"
+
+#include <sys/epoll.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <time.h>
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <openssl/ssl.h>
+#include <openssl/rand.h>
+#include <openssl/err.h>
+
+#include "port.h"
+#include "timers.h"
+
+#if defined(AF_INET6) && defined(IN6_IS_ADDR_V4MAPPED)
+#define USE_IPV6
+#endif
+
+#define max(a,b) ((a)>=(b)?(a):(b))
+#define min(a,b) ((a)<=(b)?(a):(b))
+
+/* How long a connection can stay idle before we give up on it. */
+#define IDLE_SECS 60
+
+/* Default max bytes/second in throttle mode. */
+#define THROTTLE 3360
+
+/* How often to show progress reports. */
+#define PROGRESS_SECS 60
+
+/* How many file descriptors to not use. */
+#define RESERVED_FDS 3
+
+
+typedef struct
+{
+  char *url_str;
+  int protocol;
+  char *hostname;
+  unsigned short port;
+#ifdef USE_IPV6
+  struct sockaddr_in6 sa;
+#else                           /* USE_IPV6 */
+  struct sockaddr_in sa;
+#endif                          /* USE_IPV6 */
+  int sa_len, sock_family, sock_type, sock_protocol;
+  char *filename;
+  int got_bytes;
+  long bytes;
+  int got_checksum;
+  long checksum;
+  char *buf;
+  int buf_bytes;
+  int unique_id_offset;
+  struct
+  {
+    int completed;
+    int max_response;
+    int min_response;
+  } stats;
+
+} url;
+static url *urls;
+static int num_urls, max_urls, cur_url;
+
+typedef struct
+{
+  char *str;
+  struct sockaddr_in sa;
+} sip;
+static sip *sips;
+static int num_sips, max_sips;
+
+/* Protocol symbols. */
+#define PROTO_HTTP 0
+#define PROTO_HTTPS 1
+
+/* Connection states */
+typedef enum
+{
+  CNST_FREE = 0,
+  CNST_CONNECTING,
+  CNST_HEADERS,
+  CNST_READING,
+  CNST_PAUSING
+} connection_states;
+
+/* States for the Header State Machine */
+typedef enum
+{
+  /* SM basic states */
+  HDST_LINE1_PROTOCOL = 0,
+  HDST_LINE1_WS,
+  HDST_LINE1_STATUS,
+  HDST_BOL,
+  HDST_TEXT,
+  HDST_LF,
+  HDST_CR,
+  HDST_CRLF,
+  HDST_CRLFCR,
+  /* SM states for Content-Length header */
+  HDST_C,
+  HDST_CO,
+  HDST_CON,
+  HDST_CONT,
+  HDST_CONTE,
+  HDST_CONTEN,
+  HDST_CONTENT,
+  HDST_CONTENT_,
+  HDST_CONTENT_L,
+  HDST_CONTENT_LE,
+  HDST_CONTENT_LEN,
+  HDST_CONTENT_LENG,
+  HDST_CONTENT_LENGT,
+  HDST_CONTENT_LENGTH,
+  HDST_CONTENT_LENGTH_COLON,
+  HDST_CONTENT_LENGTH_COLON_WS,
+  HDST_CONTENT_LENGTH_COLON_WS_NUM,
+  /* SM states for Connection: close */
+  HDST_CONN,
+  HDST_CONNE,
+  HDST_CONNEC,
+  HDST_CONNECT,
+  HDST_CONNECTI,
+  HDST_CONNECTIO,
+  HDST_CONNECTION,
+  HDST_CONNECTION_COLON,
+  HDST_CONNECTION_COLON_WS,
+  HDST_CONNECTION_COLON_WS_C,
+  HDST_CONNECTION_COLON_WS_CL,
+  HDST_CONNECTION_COLON_WS_CLO,
+  HDST_CONNECTION_COLON_WS_CLOS,
+  HDST_CONNECTION_COLON_WS_CLOSE,
+  /* SM states for Connection: keep-alive */
+  HDST_CONNECTION_COLON_WS_K,
+  HDST_CONNECTION_COLON_WS_KE,
+  HDST_CONNECTION_COLON_WS_KEE,
+  HDST_CONNECTION_COLON_WS_KEEP,
+  HDST_CONNECTION_COLON_WS_KEEP_,
+  HDST_CONNECTION_COLON_WS_KEEP_A,
+  HDST_CONNECTION_COLON_WS_KEEP_AL,
+  HDST_CONNECTION_COLON_WS_KEEP_ALI,
+  HDST_CONNECTION_COLON_WS_KEEP_ALIV,
+  HDST_CONNECTION_COLON_WS_KEEP_ALIVE,
+  /* SM states for Transfer-Encoding: chunked */
+  HDST_T,
+  HDST_TR,
+  HDST_TRA,
+  HDST_TRAN,
+  HDST_TRANS,
+  HDST_TRANSF,
+  HDST_TRANSFE,
+  HDST_TRANSFER,
+  HDST_TRANSFER_DASH,
+  HDST_TRANSFER_DASH_E,
+  HDST_TRANSFER_DASH_EN,
+  HDST_TRANSFER_DASH_ENC,
+  HDST_TRANSFER_DASH_ENCO,
+  HDST_TRANSFER_DASH_ENCOD,
+  HDST_TRANSFER_DASH_ENCODI,
+  HDST_TRANSFER_DASH_ENCODIN,
+  HDST_TRANSFER_DASH_ENCODING,
+  HDST_TRANSFER_DASH_ENCODING_COLON,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_C,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_CH,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHU,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUN,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNK,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNKE,
+  HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNKED
+} header_states;
+
+typedef struct
+{
+  int url_num;
+  struct sockaddr_in sa;
+  int sa_len;
+  int conn_fd;
+  SSL *ssl;
+  connection_states conn_state;
+  header_states header_state;
+  int did_connect, did_response;
+  struct timeval started_at;
+  struct timeval connect_at;
+  struct timeval request_at;
+  struct timeval response_at;
+  Timer *idle_timer;
+  Timer *wakeup_timer;
+  long content_length;
+  long bytes;
+  long checksum;
+  int http_status;
+  int reusable;
+  int keep_alive;
+  int chunked;
+  unsigned int unique_id;
+  struct
+  {
+    int connections;
+    int requests;
+    int responses;
+    int requests_per_connection;
+  } stats;
+} connection;
+
+static connection *connections;
+static int max_connections, num_connections, max_parallel, num_ka_conns;
+
+static int http_status_counts[1000];    /* room for all three-digit statuses */
+static char *argv0;
+static int do_checksum, do_throttle, do_verbose, do_jitter, do_proxy;
+static int do_accept_gzip, do_sequential;
+static float throttle;
+static int idle_secs;
+static char *proxy_hostname;
+static unsigned short proxy_port;
+static char *user_agent;
+static char *cookie;
+static char *http_version;
+static int is_http_1_1;
+static int ignore_bytes;
+static int keep_alive;
+static char *extra_headers;
+static unsigned int unique_id_counter;
+static int unique_id = 0;
+static int socket_pool;
+static int epfd;
+static int max_connect_failures = 0;
+
+static struct timeval start_at;
+static int fetches_started, connects_completed, responses_completed, fetches_completed;
+static long long total_bytes;
+static long long total_connect_usecs, max_connect_usecs, min_connect_usecs;
+static long long total_response_usecs, max_response_usecs, min_response_usecs;
+int total_timeouts, total_badbytes, total_badchecksums;
+
+static long start_interval, low_interval, high_interval, range_interval;
+
+static SSL_CTX *ssl_ctx = (SSL_CTX *) 0;
+static char *cipher = (char *) 0;
+
+/* Forwards. */
+static void usage(void);
+static void read_url_file(char *url_file);
+static void lookup_address(int url_num);
+static void read_sip_file(char *sip_file);
+static void start_connection(struct timeval *nowP);
+static void start_socket(int url_num, int cnum, struct timeval *nowP);
+static void handle_connect(int cnum, struct timeval *nowP, int double_check);
+static void handle_read(int cnum, struct timeval *nowP);
+static void idle_connection(ClientData client_data, struct timeval *nowP);
+static void wakeup_connection(ClientData client_data, struct timeval *nowP);
+static void close_connection(int cnum);
+static void progress_report(ClientData client_data, struct timeval *nowP);
+static void start_timer(ClientData client_data, struct timeval *nowP);
+static void end_timer(ClientData client_data, struct timeval *nowP);
+static void finish(struct timeval *nowP);
+static long long delta_timeval(struct timeval *start, struct timeval *finish);
+static void *malloc_check(size_t size);
+static void *realloc_check(void *ptr, size_t size);
+static char *strdup_check(char *str);
+static void check(void *ptr);
+
+
+int
+main(int argc, char **argv)
+{
+  int argn;
+  int start;
+#define START_NONE 0
+#define START_PARALLEL 1
+#define START_RATE 2
+  int start_parallel = -1, start_rate = -1;
+  int end;
+#define END_NONE 0
+#define END_FETCHES 1
+#define END_SECONDS 2
+  int end_fetches = -1, end_seconds = -1;
+  int cnum;
+  char *url_file;
+  char *sip_file;
+#ifdef RLIMIT_NOFILE
+  struct rlimit limits;
+#endif /* RLIMIT_NOFILE */
+  struct epoll_event *events;
+  struct timeval now;
+  int i, r, periodic_tmr;
+
+  max_connections = 64 - RESERVED_FDS;  /* a guess */
+#ifdef RLIMIT_NOFILE
+  /* Try and increase the limit on # of files to the maximum. */
+  if (getrlimit(RLIMIT_NOFILE, &limits) == 0) {
+    if (limits.rlim_cur != limits.rlim_max) {
+      if (limits.rlim_max == RLIM_INFINITY)
+        limits.rlim_cur = 8192; /* arbitrary */
+      else if (limits.rlim_max > limits.rlim_cur)
+        limits.rlim_cur = limits.rlim_max;
+      (void) setrlimit(RLIMIT_NOFILE, &limits);
+    }
+    max_connections = limits.rlim_cur - RESERVED_FDS;
+  }
+#endif /* RLIMIT_NOFILE */
+
+  /* Parse args. */
+  argv0 = argv[0];
+  argn = 1;
+  do_checksum = do_throttle = do_verbose = do_jitter = do_proxy = 0;
+  do_accept_gzip = do_sequential = 0;
+  throttle = THROTTLE;
+  sip_file = (char *) 0;
+  user_agent = VERSION;
+  cookie = NULL;
+  http_version = "1.1";
+  is_http_1_1 = 1;
+  idle_secs = IDLE_SECS;
+  start = START_NONE;
+  end = END_NONE;
+  keep_alive = 0;
+  socket_pool = 0;
+  extra_headers = NULL;
+  while (argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0') {
+    if (strncmp(argv[argn], "-checksum", strlen(argv[argn])) == 0)
+      do_checksum = 1;
+    else if (strncmp(argv[argn], "-sequential", strlen(argv[argn])) == 0)
+      do_sequential = 1;
+    else if (strncmp(argv[argn], "-throttle", strlen(argv[argn])) == 0)
+      do_throttle = 1;
+    else if (strncmp(argv[argn], "-Throttle", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      do_throttle = 1;
+      throttle = atoi(argv[++argn]) / 10.0;
+    } else if (strncmp(argv[argn], "-verbose", strlen(argv[argn])) == 0)
+      do_verbose = 1;
+    else if (strncmp(argv[argn], "-timeout", strlen(argv[argn])) == 0 && argn + 1 < argc)
+      idle_secs = atoi(argv[++argn]);
+    else if (strncmp(argv[argn], "-jitter", strlen(argv[argn])) == 0)
+      do_jitter = 1;
+    else if (strncmp(argv[argn], "-accept_gzip", strlen(argv[argn])) == 0)
+      do_accept_gzip = 1;
+    else if (strncmp(argv[argn], "-parallel", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      start = START_PARALLEL;
+      start_parallel = atoi(argv[++argn]);
+      if (start_parallel < 1) {
+        (void) fprintf(stderr, "%s: parallel must be at least 1\n", argv0);
+        exit(1);
+      }
+      if (start_parallel > max_connections) {
+        (void) fprintf(stderr, "%s: parallel may be at most %d\n", argv0, max_connections);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-rate", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      start = START_RATE;
+      start_rate = atoi(argv[++argn]);
+      if (start_rate < 1) {
+        (void) fprintf(stderr, "%s: rate must be at least 1\n", argv0);
+        exit(1);
+      }
+      if (start_rate > 1000) {
+        (void) fprintf(stderr, "%s: rate may be at most 1000\n", argv0);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-sockets", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      socket_pool = atoi(argv[++argn]) - 1;
+      if (socket_pool < 0) {
+        (void) fprintf(stderr, "%s: sockets must be at least 1\n", argv0);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-fetches", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      end = END_FETCHES;
+      end_fetches = atoi(argv[++argn]);
+      if (end_fetches < 1) {
+        (void) fprintf(stderr, "%s: fetches must be at least 1\n", argv0);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-seconds", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      end = END_SECONDS;
+      end_seconds = atoi(argv[++argn]);
+      if (end_seconds < 1) {
+        (void) fprintf(stderr, "%s: seconds must be at least 1\n", argv0);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-keep_alive", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      keep_alive = atoi(argv[++argn]);
+      if (keep_alive < 1) {
+        (void) fprintf(stderr, "%s: keep_alive must be at least 1\n", argv0);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-unique_id", strlen(argv[argn])) == 0) {
+      unique_id = 1;
+    } else if (strncmp(argv[argn], "-sip", strlen(argv[argn])) == 0 && argn + 1 < argc)
+      sip_file = argv[++argn];
+    else if (strncmp(argv[argn], "-agent", strlen(argv[argn])) == 0 && argn + 1 < argc)
+      user_agent = argv[++argn];
+    else if (strncmp(argv[argn], "-cookie", strlen(argv[argn])) == 0 && argn + 1 < argc)
+      cookie = argv[++argn];
+    else if (strncmp(argv[argn], "-ignore_bytes", strlen(argv[argn])) == 0)
+      ignore_bytes = 1;
+    else if (strncmp(argv[argn], "-max_connect_failures", strlen(argv[argn])) == 0) {
+      max_connect_failures = atoi(argv[++argn]);
+      if (max_connect_failures < 1) {
+        (void) fprintf(stderr, "%s: max_connection failures should be 1 or higher\n", argv0);
+        exit(1);
+      }
+    } else if (strncmp(argv[argn], "-header", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      if (extra_headers) {
+        strcat(extra_headers, "\r\n");
+        strcat(extra_headers, argv[++argn]);
+      } else {
+        extra_headers = malloc_check(65536);
+        strcpy(extra_headers, argv[++argn]);
+      }
+    } else if (strncmp(argv[argn], "-http_version", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      http_version = argv[++argn];
+      is_http_1_1 = (strcmp(http_version, "1.1") == 0);
+    }
+    else if (strncmp(argv[argn], "-cipher", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      cipher = argv[++argn];
+      if (strcasecmp(cipher, "fastsec") == 0)
+        cipher = "RC4-MD5";
+      else if (strcasecmp(cipher, "highsec") == 0)
+        cipher = "DES-CBC3-SHA";
+      else if (strcasecmp(cipher, "paranoid") == 0)
+        cipher = "AES256-SHA";
+    }
+    else if (strncmp(argv[argn], "-proxy", strlen(argv[argn])) == 0 && argn + 1 < argc) {
+      char *colon;
+      do_proxy = 1;
+      proxy_hostname = argv[++argn];
+      colon = strchr(proxy_hostname, ':');
+      if (colon == (char *) 0)
+        proxy_port = 80;
+      else {
+        proxy_port = (unsigned short) atoi(colon + 1);
+        *colon = '\0';
+      }
+    } else
+      usage();
+    ++argn;
+  }
+  if (argn + 1 != argc)
+    usage();
+  if (start == START_NONE || end == END_NONE)
+    usage();
+  if (do_jitter && start != START_RATE)
+    usage();
+  url_file = argv[argn];
+
+  /* Read in and parse the URLs. */
+  read_url_file(url_file);
+
+  /* Read in the source IP file, if specified. */
+  if (sip_file != (char *) 0)
+    read_sip_file(sip_file);
+
+  /* Initialize the connections table. */
+  if (start == START_PARALLEL)
+    max_connections = start_parallel;
+  connections = (connection *) malloc_check(max_connections * sizeof(connection));
+  for (cnum = 0; cnum < max_connections; ++cnum) {
+    connections[cnum].conn_state = CNST_FREE;
+    connections[cnum].reusable = 0;
+    connections[cnum].stats.requests = 0;
+    connections[cnum].stats.responses = 0;
+    connections[cnum].stats.connections = 0;
+  }
+  num_connections = max_parallel = num_ka_conns = 0;
+
+  /* Initialize the HTTP status-code histogram. */
+  for (i = 0; i < 1000; ++i)
+    http_status_counts[i] = 0;
+
+  /* Initialize the statistics. */
+  fetches_started = 0;
+  connects_completed = 0;
+  responses_completed = 0;
+  fetches_completed = 0;
+  total_bytes = 0;
+  total_connect_usecs = 0;
+  max_connect_usecs = 0;
+  min_connect_usecs = 1000000000L;
+  total_response_usecs = 0;
+  max_response_usecs = 0;
+  min_response_usecs = 1000000000L;
+  total_timeouts = 0;
+  total_badbytes = 0;
+  total_badchecksums = 0;
+
+  /* Initialize epoll() and kqueue() etc. */
+  epfd = epoll_create(max_connections);
+  if (epfd == -1) {
+    perror("epoll_create");
+    exit(1);
+  }
+  events = malloc(sizeof(struct epoll_event) * max_connections);
+
+  /* Initialize the random number generator. */
+#ifdef HAVE_SRANDOMDEV
+  srandomdev();
+#else
+  srandom((int) time((time_t *) 0) ^ getpid());
+#endif
+
+  /* Initialize the rest. */
+  tmr_init();
+  (void) gettimeofday(&now, (struct timezone *) 0);
+  start_at = now;
+  if (do_verbose)
+    (void) tmr_create(&now, progress_report, JunkClientData, PROGRESS_SECS * 1000L, 1);
+  if (start == START_RATE) {
+    start_interval = 1000L / start_rate;
+    if (do_jitter) {
+      low_interval = start_interval * 9 / 10;
+      high_interval = start_interval * 11 / 10;
+      range_interval = high_interval - low_interval + 1;
+    }
+    (void) tmr_create(&now, start_timer, JunkClientData, start_interval, !do_jitter);
+  }
+  if (end == END_SECONDS)
+    (void) tmr_create(&now, end_timer, JunkClientData, end_seconds * 1000L, 0);
+  (void) signal(SIGPIPE, SIG_IGN);
+
+  /* Main loop. */
+  for (;;) {
+    if (end == END_FETCHES && fetches_completed >= end_fetches)
+      finish(&now);
+
+    if (start == START_PARALLEL) {
+      /* See if we need to start any new connections; but at most 10. */
+      for (i = 0;
+           i < 10 && num_connections < start_parallel && (end != END_FETCHES || fetches_started < end_fetches); ++i) {
+        start_connection(&now);
+        (void) gettimeofday(&now, (struct timezone *) 0);
+        tmr_run(&now);
+      }
+    }
+
+    r = epoll_wait(epfd, events, max_connections, tmr_mstimeout(&now));
+#ifdef DEBUG
+    fprintf(stderr, "epoll_wait() got %d events\n", r);
+#endif
+    if (r < 0) {
+      perror("epoll_wait");
+      exit(1);
+    }
+    (void) gettimeofday(&now, (struct timezone *) 0);
+
+    /* Service them. */
+    periodic_tmr = 50;
+    while (r-- > 0) {
+      if (--periodic_tmr == 0) {
+        periodic_tmr = 50;
+        tmr_run(&now);
+      }
+      cnum = events[r].data.u32;
+#ifdef DEBUG
+      fprintf(stderr, "processing event %d (%d), for CNUM %d\n", r + 1, events[r].events, cnum);
+#endif
+      switch (connections[cnum].conn_state) {
+      case CNST_CONNECTING:
+        handle_connect(cnum, &now, 1);
+        break;
+      case CNST_HEADERS:
+      case CNST_READING:
+        handle_read(cnum, &now);
+        break;
+      default:
+        /* Nothing */
+        break;
+      }
+    }
+    /* And run the timers. */
+    tmr_run(&now);
+  }
+
+  /* NOT_REACHED */
+}
+
+
+static void
+usage(void)
+{
+  (void) fprintf(stderr,
+                 "usage:	%s [-checksum] [-throttle] [-sequential] [-proxy host:port]\n"
+                 "		[-verbose] [-timeout secs] [-sip sip_file] [-agent user_agent]\n"
+                 "		[-cookie http_cookie] [-accept_gzip] [-http_version version_str]\n"
+                 "		[-keep_alive num_reqs_per_conn] [-unique_id]\n"
+                 "		[-max_connect_failures N] [-ignore_bytes] [ [-header str] ... ]\n",
+                 argv0);
+  (void) fprintf(stderr, "	[-cipher str]\n");
+  (void) fprintf(stderr, "	-parallel N | -rate N [-jitter]\n");
+  (void) fprintf(stderr, "	-fetches N | -seconds N\n");
+  (void) fprintf(stderr, "	url_file\n");
+  (void) fprintf(stderr, "One start specifier, either -parallel or -rate, is required.\n");
+  (void) fprintf(stderr, "One end specifier, either -fetches or -seconds, is required.\n");
+  exit(1);
+}
+
+
+static void
+read_url_file(char *url_file)
+{
+  FILE *fp;
+  char line[5000], hostname[5000];
+  char *http = "http://";
+  int http_len = strlen(http);
+  char *https = "https://";
+  int https_len = strlen(https);
+  int proto_len, host_len;
+  char *cp;
+
+  fp = fopen(url_file, "r");
+  if (fp == (FILE *) 0) {
+    perror(url_file);
+    exit(1);
+  }
+
+  max_urls = 100;
+  urls = (url *) malloc_check(max_urls * sizeof(url));
+  num_urls = 0;
+  cur_url = 0;
+
+  /* The Host: header can either be user provided (via -header), or
+     constructed by the URL host and possibly port (if not port 80) */
+
+  char hdr_buf[2048];
+  int hdr_bytes = 0;
+  hdr_bytes += snprintf(&hdr_buf[hdr_bytes], sizeof(hdr_buf) - hdr_bytes, "User-Agent: %s\r\n", user_agent);
+  if (cookie)
+    hdr_bytes += snprintf(&hdr_buf[hdr_bytes], sizeof(hdr_buf) - hdr_bytes, "Cookie: %s\r\n", cookie);
+  if (do_accept_gzip)
+    hdr_bytes += snprintf(&hdr_buf[hdr_bytes], sizeof(hdr_buf) - hdr_bytes, "Accept-Encoding: gzip\r\n");
+  /* Add Connection: keep-alive header if keep_alive requested, and version != "1.1" */
+  if ((keep_alive > 0) && !is_http_1_1)
+    hdr_bytes += snprintf(&hdr_buf[hdr_bytes], sizeof(hdr_buf) - hdr_bytes, "Connection: keep-alive\r\n");
+  if (extra_headers != NULL) {
+    hdr_bytes += snprintf(&hdr_buf[hdr_bytes], sizeof(hdr_buf) - hdr_bytes, "%s\r\n", extra_headers);
+  }
+  hdr_bytes += snprintf(&hdr_buf[hdr_bytes], sizeof(hdr_buf) - hdr_bytes, "\r\n");
+
+  while (fgets(line, sizeof(line), fp) != (char *) 0) {
+    char req_buf[2048];
+    int req_bytes = 0;
+
+    /* Nuke trailing newline. */
+    if (line[strlen(line) - 1] == '\n')
+      line[strlen(line) - 1] = '\0';
+
+    /* Check for room in urls. */
+    if (num_urls >= max_urls) {
+      max_urls *= 2;
+      urls = (url *) realloc_check((void *) urls, max_urls * sizeof(url));
+    }
+
+    /* Add to table. */
+    urls[num_urls].url_str = strdup_check(line);
+
+    /* Parse it. */
+    if (strncmp(http, line, http_len) == 0) {
+      proto_len = http_len;
+      urls[num_urls].protocol = PROTO_HTTP;
+    }
+    else if (strncmp(https, line, https_len) == 0) {
+      proto_len = https_len;
+      urls[num_urls].protocol = PROTO_HTTPS;
+    }
+    else {
+      (void) fprintf(stderr, "%s: unknown protocol - %s\n", argv0, line);
+      exit(1);
+    }
+    for (cp = line + proto_len; *cp != '\0' && *cp != ':' && *cp != '/'; ++cp);
+    host_len = cp - line;
+    host_len -= proto_len;
+    strncpy(hostname, line + proto_len, host_len);
+    hostname[host_len] = '\0';
+    urls[num_urls].hostname = strdup_check(hostname);
+    if (*cp == ':') {
+      urls[num_urls].port = (unsigned short) atoi(++cp);
+      while (*cp != '\0' && *cp != '/')
+        ++cp;
+    } else
+    if (urls[num_urls].protocol == PROTO_HTTPS)
+      urls[num_urls].port = 443;
+    else
+      urls[num_urls].port = 80;
+    if (*cp == '\0')
+      urls[num_urls].filename = strdup_check("/");
+    else
+      urls[num_urls].filename = strdup_check(cp);
+
+    lookup_address(num_urls);
+
+    urls[num_urls].got_bytes = 0;
+    urls[num_urls].got_checksum = 0;
+    urls[num_urls].unique_id_offset = 0;
+
+    /* Pregenereate the request string, major performance improvement. */
+    if (do_proxy) {
+      req_bytes = snprintf(req_buf, sizeof(req_buf), "GET %s://%.500s:%d%.500s HTTP/%s\r\n",
+                           urls[num_urls].protocol == PROTO_HTTPS ? "https" : "http",
+                           urls[num_urls].hostname, (int) urls[num_urls].port, urls[num_urls].filename, http_version);
+    } else
+      req_bytes = snprintf(req_buf, sizeof(req_buf), "GET %.500s HTTP/%s\r\n", urls[num_urls].filename, http_version);
+
+    if (extra_headers == NULL || !strstr(extra_headers, "Host:")) {
+      if (urls[num_urls].port != 80)
+        req_bytes += snprintf(&req_buf[req_bytes], sizeof(req_buf) - req_bytes, "Host: %s:%d\r\n",
+                              urls[num_urls].hostname, urls[num_urls].port);
+      else
+        req_bytes += snprintf(&req_buf[req_bytes], sizeof(req_buf) - req_bytes, "Host: %s\r\n",
+                              urls[num_urls].hostname);
+    }
+    if (unique_id == 1) {
+      req_bytes += snprintf(&req_buf[req_bytes], sizeof(req_buf) - req_bytes, "X-ID: ");
+      urls[num_urls].unique_id_offset = req_bytes;
+      req_bytes += snprintf(&req_buf[req_bytes], sizeof(req_buf) - req_bytes, "%09u\r\n", 0);
+    }
+
+    // add the common hdr here
+    req_bytes += snprintf(&req_buf[req_bytes], sizeof(req_buf) - req_bytes, hdr_buf, 0);
+
+    urls[num_urls].buf_bytes = req_bytes;
+    urls[num_urls].buf = strdup_check(req_buf);
+
+    ++num_urls;
+  }
+}
+
+
+static void
+lookup_address(int url_num)
+{
+  if(do_proxy && url_num > 0) {
+    urls[url_num].sock_family = urls[url_num-1].sock_family;
+    urls[url_num].sock_type = urls[url_num-1].sock_type;
+    urls[url_num].sock_protocol = urls[url_num-1].sock_protocol;
+    urls[url_num].sa_len = urls[url_num-1].sa_len;
+    urls[url_num].sa = urls[url_num-1].sa;
+    return;
+  }
+  int i;
+  char *hostname;
+  unsigned short port;
+#ifdef USE_IPV6
+  struct addrinfo hints;
+  char portstr[10];
+  int gaierr;
+  struct addrinfo *ai;
+  struct addrinfo *ai2;
+  struct addrinfo *aiv4;
+  struct addrinfo *aiv6;
+#else /* USE_IPV6 */
+  struct hostent *he;
+#endif /* USE_IPV6 */
+
+  urls[url_num].sa_len = sizeof(urls[url_num].sa);
+  (void) memset((void *) &urls[url_num].sa, 0, urls[url_num].sa_len);
+
+  if (do_proxy)
+    hostname = proxy_hostname;
+  else
+    hostname = urls[url_num].hostname;
+  if (do_proxy)
+    port = proxy_port;
+  else
+    port = urls[url_num].port;
+
+  /* Try to do this using existing information  */
+  for (i = 0; i < url_num; i++) {
+    if ((strcmp(hostname, urls[i].hostname) == 0) && (port == urls[i].port)) {
+      urls[url_num].sock_family = urls[i].sock_family;
+      urls[url_num].sock_type = urls[i].sock_type;
+      urls[url_num].sock_protocol = urls[i].sock_protocol;
+      urls[url_num].sa = urls[i].sa;
+      urls[url_num].sa_len = urls[i].sa_len;
+      return;
+    }
+  }
+
+#ifdef USE_IPV6
+
+  (void) memset(&hints, 0, sizeof(hints));
+  hints.ai_family = PF_UNSPEC;
+  hints.ai_socktype = SOCK_STREAM;
+  (void) snprintf(portstr, sizeof(portstr), "%d", (int) port);
+  if ((gaierr = getaddrinfo(hostname, portstr, &hints, &ai)) != 0) {
+    (void) fprintf(stderr, "%s: getaddrinfo %s - %s\n", argv0, hostname, gai_strerror(gaierr));
+    exit(1);
+  }
+
+  /* Find the first IPv4 and IPv6 entries. */
+  aiv4 = (struct addrinfo *) 0;
+  aiv6 = (struct addrinfo *) 0;
+  for (ai2 = ai; ai2 != (struct addrinfo *) 0; ai2 = ai2->ai_next) {
+    switch (ai2->ai_family) {
+    case AF_INET:
+      if (aiv4 == (struct addrinfo *) 0)
+        aiv4 = ai2;
+      break;
+    case AF_INET6:
+      if (aiv6 == (struct addrinfo *) 0)
+        aiv6 = ai2;
+      break;
+    }
+  }
+
+  /* If there's an IPv4 address, use that, otherwise try IPv6. */
+  if (aiv4 != (struct addrinfo *) 0) {
+    if (sizeof(urls[url_num].sa) < aiv4->ai_addrlen) {
+      (void) fprintf(stderr, "%s - sockaddr too small (%lu < %lu)\n",
+                     hostname, (unsigned long) sizeof(urls[url_num].sa), (unsigned long) aiv4->ai_addrlen);
+      exit(1);
+    }
+    urls[url_num].sock_family = aiv4->ai_family;
+    urls[url_num].sock_type = aiv4->ai_socktype;
+    urls[url_num].sock_protocol = aiv4->ai_protocol;
+    urls[url_num].sa_len = aiv4->ai_addrlen;
+    (void) memmove(&urls[url_num].sa, aiv4->ai_addr, aiv4->ai_addrlen);
+    freeaddrinfo(ai);
+    return;
+  }
+  if (aiv6 != (struct addrinfo *) 0) {
+    if (sizeof(urls[url_num].sa) < aiv6->ai_addrlen) {
+      (void) fprintf(stderr, "%s - sockaddr too small (%lu < %lu)\n",
+                     hostname, (unsigned long) sizeof(urls[url_num].sa), (unsigned long) aiv6->ai_addrlen);
+      exit(1);
+    }
+    urls[url_num].sock_family = aiv6->ai_family;
+    urls[url_num].sock_type = aiv6->ai_socktype;
+    urls[url_num].sock_protocol = aiv6->ai_protocol;
+    urls[url_num].sa_len = aiv6->ai_addrlen;
+    (void) memmove(&urls[url_num].sa, aiv6->ai_addr, aiv6->ai_addrlen);
+    freeaddrinfo(ai);
+    return;
+  }
+
+  (void) fprintf(stderr, "%s: no valid address found for host %s\n", argv0, hostname);
+  exit(1);
+
+#else /* USE_IPV6 */
+
+  /* No match in previous lookups */
+  he = gethostbyname(hostname);
+  if (he == (struct hostent *) 0) {
+    (void) fprintf(stderr, "%s: unknown host - %s\n", argv0, hostname);
+    exit(1);
+  }
+  urls[url_num].sock_family = urls[url_num].sa.sin_family = he->h_addrtype;
+  urls[url_num].sock_type = SOCK_STREAM;
+  urls[url_num].sock_protocol = 0;
+  urls[url_num].sa_len = sizeof(urls[url_num].sa);
+  (void) memmove(&urls[url_num].sa.sin_addr, he->h_addr, he->h_length);
+  urls[url_num].sa.sin_port = htons(port);
+
+#endif /* USE_IPV6 */
+
+}
+
+
+static void
+read_sip_file(char *sip_file)
+{
+  FILE *fp;
+  char line[5000];
+
+  fp = fopen(sip_file, "r");
+  if (fp == (FILE *) 0) {
+    perror(sip_file);
+    exit(1);
+  }
+
+  max_sips = 100;
+  sips = (sip *) malloc_check(max_sips * sizeof(sip));
+  num_sips = 0;
+  while (fgets(line, sizeof(line), fp) != (char *) 0) {
+    /* Nuke trailing newline. */
+    if (line[strlen(line) - 1] == '\n')
+      line[strlen(line) - 1] = '\0';
+
+    /* Check for room in sips. */
+    if (num_sips >= max_sips) {
+      max_sips *= 2;
+      sips = (sip *) realloc_check((void *) sips, max_sips * sizeof(sip));
+    }
+
+    /* Add to table. */
+    sips[num_sips].str = strdup_check(line);
+    (void) memset((void *) &sips[num_sips].sa, 0, sizeof(sips[num_sips].sa));
+    if (!inet_aton(sips[num_sips].str, &sips[num_sips].sa.sin_addr)) {
+      (void) fprintf(stderr, "%s: cannot convert source IP address %s\n", argv0, sips[num_sips].str);
+      exit(1);
+    }
+    ++num_sips;
+  }
+}
+
+
+static void
+start_connection(struct timeval *nowP)
+{
+  int cnum, url_num;
+  static int cycle_slot = 0;
+
+  /* Find an empty connection slot. */
+  if (socket_pool > 0) {
+    int prev_cycle_slot = cycle_slot;
+
+    while (1) {
+      ++cycle_slot;
+      if (cycle_slot > socket_pool)
+        cycle_slot = 0;
+      if (prev_cycle_slot == cycle_slot) {
+        return;
+        printf("Warning: cycling through all socket slots\n");
+        tmr_run(nowP);
+      }
+      if (connections[cycle_slot].conn_state == CNST_FREE) {
+        /* Choose a URL. */
+        if (do_sequential) {
+          url_num = cur_url++;
+          if (cur_url >= num_urls)
+            cur_url = 0;
+        } else {
+          url_num = ((unsigned long) random()) % ((unsigned int) num_urls);
+        }
+
+        /* Start the socket. */
+        start_socket(url_num, cycle_slot, nowP);
+        if (connections[cycle_slot].conn_state != CNST_FREE) {
+          ++num_connections;
+          /*
+             if ( num_connections > max_parallel )
+             max_parallel = num_connections;
+           */
+        }
+        ++fetches_started;
+        return;
+      }
+    }
+  } else {
+    for (cnum = 0; cnum < max_connections; ++cnum)
+      if (connections[cnum].conn_state == CNST_FREE) {
+        /* Choose a URL. */
+        if (do_sequential) {
+          url_num = cur_url++;
+          if (cur_url >= num_urls)
+            cur_url = 0;
+        } else {
+          url_num = ((unsigned long) random()) % ((unsigned int) num_urls);
+        }
+        /* Start the socket. */
+        start_socket(url_num, cnum, nowP);
+        if (connections[cnum].conn_state != CNST_FREE) {
+          ++num_connections;
+          /*
+             if ( num_connections > max_parallel )
+             max_parallel = num_connections;
+           */
+        }
+        ++fetches_started;
+        return;
+      }
+  }
+  /* No slots left. */
+  (void) fprintf(stderr, "%s: ran out of connection slots\n", argv0);
+  finish(nowP);
+}
+
+
+static void
+start_socket(int url_num, int cnum, struct timeval *nowP)
+{
+  ClientData client_data;
+  int flags;
+  int sip_num;
+  int reusable = connections[cnum].reusable;
+
+
+  /* Start filling in the connection slot. */
+  connections[cnum].url_num = url_num;
+  connections[cnum].started_at = *nowP;
+  client_data.i = cnum;
+  connections[cnum].did_connect = 0;
+  connections[cnum].did_response = 0;
+  connections[cnum].idle_timer = tmr_create(nowP, idle_connection, client_data, idle_secs * 1000L, 0);
+  connections[cnum].wakeup_timer = (Timer *) 0;
+  connections[cnum].content_length = -1;
+  connections[cnum].bytes = 0;
+  connections[cnum].checksum = 0;
+  connections[cnum].http_status = -1;
+  connections[cnum].reusable = 0;
+  connections[cnum].chunked = 0;
+  connections[cnum].unique_id = 0;
+
+  // set unique id
+  if (unique_id == 1 && urls[url_num].unique_id_offset > 0) {
+    char buffer[10];
+    snprintf(buffer, 10, "%09u", ++unique_id_counter);
+    //      fprintf(stderr, "%s %s\n", buffer, &urls[url_num].buf[unique_id_offset]);
+    memcpy((void *) &urls[url_num].buf[urls[url_num].unique_id_offset], (void *) buffer, 9);
+    connections[cnum].unique_id = unique_id_counter;
+  }
+
+  /* Make a socket. */
+  if (!reusable) {
+    struct epoll_event ev;
+
+    connections[cnum].keep_alive = keep_alive;
+    connections[cnum].conn_fd = socket(urls[url_num].sock_family, urls[url_num].sock_type, urls[url_num].sock_protocol);
+    if (connections[cnum].conn_fd < 0) {
+      perror(urls[url_num].url_str);
+      return;
+    }
+    connections[cnum].stats.connections++;
+
+    /* Set the file descriptor to no-delay mode. */
+    flags = fcntl(connections[cnum].conn_fd, F_GETFL, 0);
+    if (flags == -1) {
+      perror(urls[url_num].url_str);
+      (void) close(connections[cnum].conn_fd);
+      return;
+    }
+    if (fcntl(connections[cnum].conn_fd, F_SETFL, flags | O_NDELAY) < 0) {
+      perror(urls[url_num].url_str);
+      (void) close(connections[cnum].conn_fd);
+      return;
+    }
+
+    if (num_sips > 0) {
+      /* Try a random source IP address. */
+      sip_num = ((unsigned long) random()) % ((unsigned int) num_sips);
+      if (bind(connections[cnum].conn_fd, (struct sockaddr *) &sips[sip_num].sa, sizeof(sips[sip_num].sa)) < 0) {
+        perror("binding local address");
+        (void) close(connections[cnum].conn_fd);
+        return;
+      }
+    }
+    ev.events = EPOLLOUT;
+    ev.data.u32 = cnum;
+#ifdef DEBUG
+    fprintf(stderr, "Adding FD %d for CNUM %d\n", connections[cnum].conn_fd, cnum);
+#endif
+    if (epoll_ctl(epfd, EPOLL_CTL_ADD, connections[cnum].conn_fd, &ev)) {
+      perror("epoll add fd");
+      (void) close(connections[cnum].conn_fd);
+      return;
+    }
+    /* Connect to the host. */
+    connections[cnum].sa_len = urls[url_num].sa_len;
+    (void) memmove((void *) &connections[cnum].sa, (void *) &urls[url_num].sa, urls[url_num].sa_len);
+    connections[cnum].connect_at = *nowP;
+    if (connect(connections[cnum].conn_fd, (struct sockaddr *) &connections[cnum].sa, connections[cnum].sa_len) < 0) {
+      if (errno == EINPROGRESS) {
+        connections[cnum].conn_state = CNST_CONNECTING;
+        return;
+      } else {
+        /* remove the FD from the epoll descriptor */
+        if (epoll_ctl(epfd, EPOLL_CTL_DEL, connections[cnum].conn_fd, &ev) < 0)
+          perror("epoll delete fd");
+        perror(urls[url_num].url_str);
+        (void) close(connections[cnum].conn_fd);
+        return;
+      }
+    }
+
+    /* Connect succeeded instantly, so handle it now. */
+    (void) gettimeofday(nowP, (struct timezone *) 0);
+    handle_connect(cnum, nowP, 0);
+  } else {
+    /* Send the request on a reused connection */
+    int r;
+
+    connections[cnum].stats.requests++;
+    connections[cnum].stats.requests_per_connection++;
+    connections[cnum].request_at = *nowP;
+
+    if (urls[url_num].protocol == PROTO_HTTPS)
+      r = SSL_write(connections[cnum].ssl, urls[url_num].buf, urls[url_num].buf_bytes);
+    else
+      r = write(connections[cnum].conn_fd, urls[url_num].buf, urls[url_num].buf_bytes);
+    if (r < 0) {
+      perror(urls[url_num].url_str);
+      connections[cnum].reusable = 0;
+      close_connection(cnum);
+      return;
+    }
+    connections[cnum].conn_state = CNST_HEADERS;
+    connections[cnum].header_state = HDST_LINE1_PROTOCOL;
+  }
+}
+
+static int
+cert_verify_callback(int ok __attribute__ ((unused)), X509_STORE_CTX *ctx __attribute__ ((unused)))
+{
+  return 1;
+}
+
+static void
+handle_connect(int cnum, struct timeval *nowP, int double_check)
+{
+  static int connect_failures = 0;
+  int url_num;
+  int r;
+  struct epoll_event ev;
+
+#ifdef DEBUG
+  fprintf(stderr, "Entering handle_connect() for CNUM %d\n", cnum);
+#endif
+
+  url_num = connections[cnum].url_num;
+  connections[cnum].stats.requests_per_connection = 0;
+  if (double_check) {
+    /* Check to make sure the non-blocking connect succeeded. */
+    int err, errlen;
+
+    if (connect(connections[cnum].conn_fd, (struct sockaddr *) &connections[cnum].sa, connections[cnum].sa_len) < 0) {
+      if (max_connect_failures && (++connect_failures > max_connect_failures))
+        exit(0);
+      switch (errno) {
+      case EISCONN:
+        /* Ok! */
+        break;
+      case EINVAL:
+        errlen = sizeof(err);
+        if (getsockopt(connections[cnum].conn_fd, SOL_SOCKET, SO_ERROR, (void *) &err, (socklen_t *) & errlen) < 0)
+          (void) fprintf(stderr, "%s: unknown connect error\n", urls[url_num].url_str);
+        else
+          (void) fprintf(stderr, "%s: %s\n", urls[url_num].url_str, strerror(err));
+        close_connection(cnum);
+        return;
+      default:
+        perror(urls[url_num].url_str);
+        close_connection(cnum);
+        return;
+      }
+    }
+  }
+
+  if (urls[url_num].protocol == PROTO_HTTPS) {
+    int flags;
+
+    /* Make SSL connection. */
+    if (ssl_ctx == (SSL_CTX *) 0) {
+      SSL_load_error_strings();
+      SSL_library_init();
+      ssl_ctx = SSL_CTX_new(SSLv23_client_method());
+      /* For some reason this does not seem to work, but indications are that it should...
+         Maybe something with how we create connections? TODO: Fix it... */
+      SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_NONE, cert_verify_callback);
+      if (cipher != (char *) 0) {
+        if (!SSL_CTX_set_cipher_list(ssl_ctx, cipher)) {
+          (void) fprintf(stderr, "%s: cannot set cipher list\n", argv0);
+          ERR_print_errors_fp(stderr);
+          close_connection(cnum);
+          return;
+        }
+      }
+    }
+
+    if (!RAND_status()) {
+      unsigned char bytes[1024];
+      int i;
+      for (i = 0; i < sizeof(bytes); ++i)
+        bytes[i] = random() % 0xff;
+      RAND_seed(bytes, sizeof(bytes));
+    }
+    flags = fcntl(connections[cnum].conn_fd, F_GETFL, 0);
+    if (flags != -1)
+      (void) fcntl(connections[cnum].conn_fd, F_SETFL, flags & ~(int) O_NDELAY);
+    connections[cnum].ssl = SSL_new(ssl_ctx);
+    SSL_set_fd(connections[cnum].ssl, connections[cnum].conn_fd);
+    r = SSL_connect(connections[cnum].ssl);
+    if (r <= 0) {
+      (void) fprintf(stderr, "%s: SSL connection failed - %d\n", argv0, r);
+      ERR_print_errors_fp(stderr);
+      close_connection(cnum);
+      return;
+    }
+  }
+
+  ev.events = EPOLLIN;
+  ev.data.u32 = cnum;
+
+#ifdef DEBUG
+  fprintf(stderr, "Mod FD %d to read for CNUM %d\n", connections[cnum].conn_fd, cnum);
+#endif
+  if (epoll_ctl(epfd, EPOLL_CTL_MOD, connections[cnum].conn_fd, &ev)) {
+    perror("epoll mod fd");
+    (void) close(connections[cnum].conn_fd);
+    return;
+  }
+  /* Send the request. */
+  connections[cnum].did_connect = 1;
+  connections[cnum].request_at = *nowP;
+  connections[cnum].stats.requests++;
+  if (urls[url_num].protocol == PROTO_HTTPS)
+    r = SSL_write(connections[cnum].ssl, urls[url_num].buf, urls[url_num].buf_bytes);
+  else
+    r = write(connections[cnum].conn_fd, urls[url_num].buf, urls[url_num].buf_bytes);
+  if (r < 0) {
+    perror(urls[url_num].url_str);
+    connections[cnum].reusable = 0;
+    close_connection(cnum);
+    return;
+  }
+  connections[cnum].conn_state = CNST_HEADERS;
+  connections[cnum].header_state = HDST_LINE1_PROTOCOL;
+}
+
+
+static void
+handle_read(int cnum, struct timeval *nowP)
+{
+  char buf[30000];              /* must be larger than throttle / 2 */
+  int bytes_to_read, bytes_read, bytes_handled;
+  float elapsed;
+  ClientData client_data;
+  long checksum;
+
+  tmr_reset(nowP, connections[cnum].idle_timer);
+
+  if (do_throttle)
+    bytes_to_read = throttle / 2.0;
+  else
+    bytes_to_read = sizeof(buf);
+  if (!connections[cnum].did_response) {
+    connections[cnum].did_response = 1;
+    connections[cnum].response_at = *nowP;
+    if (connections[cnum].did_connect) {
+      if (connections[cnum].keep_alive == keep_alive) {
+        num_ka_conns++;
+        if (num_ka_conns > max_parallel) {
+          max_parallel = num_ka_conns;
+        }
+      }
+    }
+    if (connections[cnum].keep_alive == 0) {
+      num_ka_conns--;
+    }
+  }
+  if (urls[connections[cnum].url_num].protocol == PROTO_HTTPS)
+    bytes_read = SSL_read(connections[cnum].ssl, buf, bytes_to_read - 1);
+  else
+    bytes_read = read(connections[cnum].conn_fd, buf, bytes_to_read - 1);
+  if (bytes_read <= 0) {
+    connections[cnum].reusable = 0;
+    close_connection(cnum);
+    return;
+  }
+
+  buf[bytes_read] = 0;
+  for (bytes_handled = 0; bytes_handled < bytes_read;) {
+    switch (connections[cnum].conn_state) {
+    case CNST_HEADERS:
+      /* State machine to read until we reach the file part.  Looks for
+       ** Content-Length header too.
+       */
+      for (; bytes_handled < bytes_read && connections[cnum].conn_state == CNST_HEADERS; ++bytes_handled) {
+        switch (connections[cnum].header_state) {
+
+        case HDST_LINE1_PROTOCOL:
+          switch (buf[bytes_handled]) {
+          case ' ':
+          case '\t':
+            connections[cnum].header_state = HDST_LINE1_WS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          }
+          break;
+
+        case HDST_LINE1_WS:
+          switch (buf[bytes_handled]) {
+          case ' ':
+          case '\t':
+            break;
+          case '0':
+          case '1':
+          case '2':
+          case '3':
+          case '4':
+          case '5':
+          case '6':
+          case '7':
+          case '8':
+          case '9':
+            connections[cnum].http_status = buf[bytes_handled] - '0';
+            connections[cnum].header_state = HDST_LINE1_STATUS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_LINE1_STATUS:
+          switch (buf[bytes_handled]) {
+          case '0':
+          case '1':
+          case '2':
+          case '3':
+          case '4':
+          case '5':
+          case '6':
+          case '7':
+          case '8':
+          case '9':
+            connections[cnum].http_status = connections[cnum].http_status * 10 + buf[bytes_handled] - '0';
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_BOL:
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_C;
+            break;
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_T;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TEXT:
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            break;
+          }
+          break;
+
+        case HDST_LF:
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].conn_state = CNST_READING;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_C;
+            break;
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_T;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CR:
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].header_state = HDST_CRLF;
+            break;
+          case '\r':
+            connections[cnum].conn_state = CNST_READING;
+            break;
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_C;
+            break;
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_T;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CRLF:
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].conn_state = CNST_READING;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CRLFCR;
+            break;
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_C;
+            break;
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_T;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CRLFCR:
+          switch (buf[bytes_handled]) {
+          case '\n':
+          case '\r':
+            connections[cnum].conn_state = CNST_READING;
+            break;
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_C;
+            break;
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_T;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_C:
+          switch (buf[bytes_handled]) {
+          case 'O':
+          case 'o':
+            connections[cnum].header_state = HDST_CO;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CO:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_CON;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CON:
+          switch (buf[bytes_handled]) {
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_CONT;
+            break;
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_CONN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONT:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONTE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTE:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_CONTEN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTEN:
+          switch (buf[bytes_handled]) {
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_CONTENT;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT:
+          switch (buf[bytes_handled]) {
+          case '-':
+            connections[cnum].header_state = HDST_CONTENT_;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_:
+          switch (buf[bytes_handled]) {
+          case 'L':
+          case 'l':
+            connections[cnum].header_state = HDST_CONTENT_L;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_L:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONTENT_LE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LE:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_CONTENT_LEN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LEN:
+          switch (buf[bytes_handled]) {
+          case 'G':
+          case 'g':
+            connections[cnum].header_state = HDST_CONTENT_LENG;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LENG:
+          switch (buf[bytes_handled]) {
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_CONTENT_LENGT;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LENGT:
+          switch (buf[bytes_handled]) {
+          case 'H':
+          case 'h':
+            connections[cnum].header_state = HDST_CONTENT_LENGTH;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LENGTH:
+          switch (buf[bytes_handled]) {
+          case ':':
+            connections[cnum].header_state = HDST_CONTENT_LENGTH_COLON;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LENGTH_COLON:
+          switch (buf[bytes_handled]) {
+          case ' ':
+          case '\t':
+            connections[cnum].header_state = HDST_CONTENT_LENGTH_COLON_WS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LENGTH_COLON_WS:
+          switch (buf[bytes_handled]) {
+          case ' ':
+          case '\t':
+            break;
+          case '0':
+          case '1':
+          case '2':
+          case '3':
+          case '4':
+          case '5':
+          case '6':
+          case '7':
+          case '8':
+          case '9':
+            connections[cnum].content_length = buf[bytes_handled] - '0';
+            connections[cnum].header_state = HDST_CONTENT_LENGTH_COLON_WS_NUM;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONTENT_LENGTH_COLON_WS_NUM:
+          switch (buf[bytes_handled]) {
+          case '0':
+          case '1':
+          case '2':
+          case '3':
+          case '4':
+          case '5':
+          case '6':
+          case '7':
+          case '8':
+          case '9':
+            connections[cnum].content_length = connections[cnum].content_length * 10 + buf[bytes_handled] - '0';
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+          /* Stuff for Connection: close */
+        case HDST_CONN:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONNE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNE:
+          switch (buf[bytes_handled]) {
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_CONNEC;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNEC:
+          switch (buf[bytes_handled]) {
+          case 'T':
+          case 't':
+            connections[cnum].header_state = HDST_CONNECT;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECT:
+          switch (buf[bytes_handled]) {
+          case 'I':
+          case 'i':
+            connections[cnum].header_state = HDST_CONNECTI;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTI:
+          switch (buf[bytes_handled]) {
+          case 'O':
+          case 'o':
+            connections[cnum].header_state = HDST_CONNECTIO;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTIO:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_CONNECTION;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION:
+          switch (buf[bytes_handled]) {
+          case ':':
+            connections[cnum].header_state = HDST_CONNECTION_COLON;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON:
+          switch (buf[bytes_handled]) {
+          case ' ':
+          case '\t':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS:
+          switch (buf[bytes_handled]) {
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_C;
+            break;
+          case 'K':
+          case 'k':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_K;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_C:
+          switch (buf[bytes_handled]) {
+          case 'L':
+          case 'l':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_CL;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_CL:
+          switch (buf[bytes_handled]) {
+          case 'O':
+          case 'o':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_CLO;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_CLO:
+          switch (buf[bytes_handled]) {
+          case 'S':
+          case 's':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_CLOS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_CLOS:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_CLOSE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_CLOSE:
+          /* Got the complete HTTP/1.1 "Connection: close" header, make sure this
+             is the last request on this connection. */
+          /* Close ToDo: Fix this */
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_K:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KE:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEE:
+          switch (buf[bytes_handled]) {
+          case 'P':
+          case 'p':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP:
+          switch (buf[bytes_handled]) {
+          case '-':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP_;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP_:
+          switch (buf[bytes_handled]) {
+          case 'A':
+          case 'a':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP_A;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP_A:
+          switch (buf[bytes_handled]) {
+          case 'L':
+          case 'l':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP_AL;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP_AL:
+          switch (buf[bytes_handled]) {
+          case 'I':
+          case 'i':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP_ALI;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP_ALI:
+          switch (buf[bytes_handled]) {
+          case 'V':
+          case 'v':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP_ALIV;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP_ALIV:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_CONNECTION_COLON_WS_KEEP_ALIVE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_CONNECTION_COLON_WS_KEEP_ALIVE:
+          /* Handle Connection: keep-alive response header, make the
+             connection reusable if we have some keep_alive quota left. */
+          /* ToDo: Fix this */
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+          /* States for Transfer-Encoding: chunked */
+        case HDST_T:
+          switch (buf[bytes_handled]) {
+          case 'R':
+          case 'r':
+            connections[cnum].header_state = HDST_TR;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TR:
+          switch (buf[bytes_handled]) {
+          case 'A':
+          case 'a':
+            connections[cnum].header_state = HDST_TRA;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRA:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_TRAN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRAN:
+          switch (buf[bytes_handled]) {
+          case 'S':
+          case 's':
+            connections[cnum].header_state = HDST_TRANS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANS:
+          switch (buf[bytes_handled]) {
+          case 'F':
+          case 'f':
+            connections[cnum].header_state = HDST_TRANSF;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSF:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_TRANSFE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFE:
+          switch (buf[bytes_handled]) {
+          case 'R':
+          case 'r':
+            connections[cnum].header_state = HDST_TRANSFER;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER:
+          switch (buf[bytes_handled]) {
+          case '-':
+            connections[cnum].header_state = HDST_TRANSFER_DASH;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_E;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_E:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_EN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_EN:
+          switch (buf[bytes_handled]) {
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENC;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENC:
+          switch (buf[bytes_handled]) {
+          case 'O':
+          case 'o':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCO;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCO:
+          switch (buf[bytes_handled]) {
+          case 'D':
+          case 'd':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCOD;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCOD:
+          switch (buf[bytes_handled]) {
+          case 'I':
+          case 'i':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODI;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODI:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODIN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODIN:
+          switch (buf[bytes_handled]) {
+          case 'G':
+          case 'g':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING:
+          switch (buf[bytes_handled]) {
+          case ':':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON:
+          switch (buf[bytes_handled]) {
+          case ' ':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS:
+          switch (buf[bytes_handled]) {
+          case 'C':
+          case 'c':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_C;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_C:
+          switch (buf[bytes_handled]) {
+          case 'H':
+          case 'h':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_CH;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_CH:
+          switch (buf[bytes_handled]) {
+          case 'U':
+          case 'u':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHU;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHU:
+          switch (buf[bytes_handled]) {
+          case 'N':
+          case 'n':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUN;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUN:
+          switch (buf[bytes_handled]) {
+          case 'K':
+          case 'k':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNK;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNK:
+          switch (buf[bytes_handled]) {
+          case 'E':
+          case 'e':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNKE;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNKE:
+          switch (buf[bytes_handled]) {
+          case 'D':
+          case 'd':
+            connections[cnum].header_state = HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNKED;
+            break;
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        case HDST_TRANSFER_DASH_ENCODING_COLON_WS_CHUNKED:
+          /* ToDo: what to do here? */
+          connections[cnum].chunked = 1;
+          switch (buf[bytes_handled]) {
+          case '\n':
+            connections[cnum].header_state = HDST_LF;
+            break;
+          case '\r':
+            connections[cnum].header_state = HDST_CR;
+            break;
+          default:
+            connections[cnum].header_state = HDST_TEXT;
+            break;
+          }
+          break;
+
+        }
+      }
+      break;
+
+    case CNST_READING:
+      connections[cnum].bytes += bytes_read - bytes_handled;
+      if (do_throttle) {
+        /* Check if we're reading too fast. */
+        elapsed = delta_timeval(&connections[cnum].started_at, nowP) / 1000000.0;
+        if (elapsed > 0.01 && connections[cnum].bytes / elapsed > throttle) {
+          connections[cnum].conn_state = CNST_PAUSING;
+          client_data.i = cnum;
+          connections[cnum].wakeup_timer = tmr_create(nowP, wakeup_connection, client_data, 1000L, 0);
+        }
+      }
+      if (do_checksum) {
+        checksum = connections[cnum].checksum;
+        for (; bytes_handled < bytes_read; ++bytes_handled) {
+          if (checksum & 1)
+            checksum = (checksum >> 1) + 0x8000;
+          else
+            checksum >>= 1;
+          checksum += buf[bytes_handled];
+          checksum &= 0xffff;
+        }
+        connections[cnum].checksum = checksum;
+      } else
+        bytes_handled = bytes_read;
+
+      /* This is an utter hack, to try to support chunked encodings... I only
+         examine the "footer", to see if it looks like a chunked "end".
+         ToDo: We should properly parse the body, and find the chunked sizes. */
+      if (connections[cnum].chunked && !strncmp(buf + bytes_read - 5, "0\r\n\r\n", 5))
+        connections[cnum].content_length = connections[cnum].bytes;
+
+      if (connections[cnum].content_length != -1 && connections[cnum].bytes >= connections[cnum].content_length) {
+        if (connections[cnum].keep_alive > 0)
+          connections[cnum].reusable = 1;
+        close_connection(cnum);
+        return;
+      }
+
+      break;
+    default:
+      /* Nothing */
+      break;
+    }
+  }
+}
+
+
+static void
+idle_connection(ClientData client_data, struct timeval *nowP __attribute__ ((unused)))
+{
+  int cnum;
+  struct timeval tv;
+  char strTime[32];
+
+  gettimeofday(&tv, NULL);
+  strftime(strTime, 32, "%T", localtime(&tv.tv_sec));
+
+  cnum = client_data.i;
+  connections[cnum].idle_timer = (Timer *) 0;
+  if (unique_id) {
+    (void) fprintf(stderr, "[%s.%lld] %s: timed out (%d sec) in state %d, requests %d, unique id: %u\n", strTime,
+                   (long long) tv.tv_usec, urls[connections[cnum].url_num].url_str, idle_secs,
+                   connections[cnum].conn_state, connections[cnum].stats.requests_per_connection,
+                   connections[cnum].unique_id);
+  } else {
+    (void) fprintf(stderr, "[%s.%lld] %s: timed out (%d sec) in state %d, requests %d\n", strTime,
+                   (long long) tv.tv_usec, urls[connections[cnum].url_num].url_str, idle_secs,
+                   connections[cnum].conn_state, connections[cnum].stats.requests_per_connection);
+  }
+  connections[cnum].reusable = 0;
+  close_connection(cnum);
+  ++total_timeouts;
+}
+
+
+static void
+wakeup_connection(ClientData client_data, struct timeval *nowP __attribute__ ((unused)))
+{
+  int cnum;
+
+  cnum = client_data.i;
+  connections[cnum].wakeup_timer = (Timer *) 0;
+  connections[cnum].conn_state = CNST_READING;
+}
+
+
+static void
+close_connection(int cnum)
+{
+  int url_num;
+
+  if (!connections[cnum].reusable) {
+    struct epoll_event ev;
+
+    ev.events = EPOLLIN | EPOLLOUT;
+    ev.data.u32 = cnum;
+    if (epoll_ctl(epfd, EPOLL_CTL_DEL, connections[cnum].conn_fd, &ev) < 0)
+      perror("epoll delete fd");
+    if (urls[connections[cnum].url_num].protocol == PROTO_HTTPS)
+      SSL_free(connections[cnum].ssl);
+    (void) close(connections[cnum].conn_fd);
+  } else {
+    --connections[cnum].keep_alive;
+  }
+  connections[cnum].conn_state = CNST_FREE;
+  if (connections[cnum].idle_timer != (Timer *) 0)
+    tmr_cancel(connections[cnum].idle_timer);
+  if (connections[cnum].wakeup_timer != (Timer *) 0)
+    tmr_cancel(connections[cnum].wakeup_timer);
+  --num_connections;
+  ++fetches_completed;
+  total_bytes += connections[cnum].bytes;
+  if (connections[cnum].did_connect) {
+    long long connect_usecs = delta_timeval(&connections[cnum].connect_at, &connections[cnum].request_at);
+/*	
+	if ( connect_usecs > ( max_connect_usecs << 3 ) && max_connect_usecs )
+	    connect_usecs = max_connect_usecs;
+*/
+    total_connect_usecs += connect_usecs;
+    max_connect_usecs = max(max_connect_usecs, connect_usecs);
+    min_connect_usecs = min(min_connect_usecs, connect_usecs);
+    ++connects_completed;
+  }
+  if (connections[cnum].did_response) {
+    long long response_usecs = delta_timeval(&connections[cnum].request_at, &connections[cnum].response_at);
+/*
+	if ( response_usecs > ( max_response_usecs << 1 ) && max_response_usecs )
+	    response_usecs = max_response_usecs;
+*/
+    total_response_usecs += response_usecs;
+    max_response_usecs = max(max_response_usecs, response_usecs);
+    min_response_usecs = min(min_response_usecs, response_usecs);
+    ++responses_completed;
+  }
+  if (connections[cnum].http_status >= 0 && connections[cnum].http_status <= 999) {
+    ++http_status_counts[connections[cnum].http_status];
+    connections[cnum].stats.responses++;
+  }
+
+  url_num = connections[cnum].url_num;
+
+  /* Only check to update got_bytes, byte count errors and/or checksums
+     if the request was succesful (i.e. no HTTP error). */
+  if (connections[cnum].http_status >= 0 && connections[cnum].http_status < 400) {
+    if (do_checksum) {
+      if (!urls[url_num].got_checksum) {
+        urls[url_num].checksum = connections[cnum].checksum;
+        urls[url_num].got_checksum = 1;
+      } else {
+        if (connections[cnum].checksum != urls[url_num].checksum) {
+          (void) fprintf(stderr, "%s: checksum wrong\n", urls[url_num].url_str);
+          ++total_badchecksums;
+        }
+      }
+    } else {
+      if (!urls[url_num].got_bytes) {
+        urls[url_num].bytes = connections[cnum].bytes;
+        urls[url_num].got_bytes = 1;
+      } else {
+        if (connections[cnum].bytes != urls[url_num].bytes) {
+          if (!ignore_bytes)
+            (void) fprintf(stderr, "%s: byte count wrong (expected %ld, got %ld)\n",
+                           urls[url_num].url_str, urls[url_num].bytes, connections[cnum].bytes);
+          ++total_badbytes;
+        }
+      }
+    }
+  }
+}
+
+
+static void
+progress_report(ClientData client_data  __attribute__ ((unused)), struct timeval *nowP __attribute__ ((unused)))
+{
+  float elapsed;
+
+  elapsed = delta_timeval(&start_at, nowP) / 1000000.0;
+  (void) fprintf(stderr,
+                 "--- %g secs, %d fetches started, %d completed, %d current\n",
+                 elapsed, fetches_started, fetches_completed, num_connections);
+}
+
+
+static void
+start_timer(ClientData client_data __attribute__ ((unused)), struct timeval *nowP __attribute__ ((unused)))
+{
+  start_connection(nowP);
+  if (do_jitter)
+    (void) tmr_create(nowP, start_timer, JunkClientData, (long) (random() % range_interval) + low_interval, 0);
+}
+
+
+static void
+end_timer(ClientData client_data __attribute__ ((unused)), struct timeval *nowP __attribute__ ((unused)))
+{
+  finish(nowP);
+}
+
+
+static void
+finish(struct timeval *nowP)
+{
+  float elapsed;
+  int i;
+
+  /* Report statistics. */
+  elapsed = delta_timeval(&start_at, nowP) / 1000000.0;
+  (void) printf("%d fetches on %d conns, %d max parallel, %g bytes, in %g seconds\n",
+                fetches_completed, connects_completed, max_parallel, (float) total_bytes, elapsed);
+  if (fetches_completed > 0)
+    (void) printf("%g mean bytes/fetch\n", (float) total_bytes / (float) fetches_completed);
+  if (elapsed > 0.01) {
+    (void) printf("%g fetches/sec, %g bytes/sec\n", (float) fetches_completed / elapsed, (float) total_bytes / elapsed);
+  }
+  if (connects_completed > 0)
+    (void) printf("msecs/connect: %g mean, %g max, %g min\n",
+                  (float) total_connect_usecs / (float) connects_completed / 1000.0,
+                  (float) max_connect_usecs / 1000.0, (float) min_connect_usecs / 1000.0);
+  if (responses_completed > 0)
+    (void) printf("msecs/first-response: %g mean, %g max, %g min\n",
+                  (float) total_response_usecs / (float) responses_completed / 1000.0,
+                  (float) max_response_usecs / 1000.0, (float) min_response_usecs / 1000.0);
+  if (total_timeouts != 0)
+    (void) printf("%d timeouts\n", total_timeouts);
+  if (do_checksum) {
+    if (total_badchecksums != 0)
+      (void) printf("%d bad checksums\n", total_badchecksums);
+  } else {
+    if (total_badbytes != 0)
+      (void) printf("%d bad byte counts\n", total_badbytes);
+  }
+
+  (void) printf("HTTP response codes:\n");
+  for (i = 0; i < 1000; ++i)
+    if (http_status_counts[i] > 0)
+      (void) printf("  code %03d -- %d\n", i, http_status_counts[i]);
+  if (do_verbose) {
+    (void) printf("Socket slot stats:\n");
+    for (i = 0; i < max_connections; i++)
+      if (connections[i].stats.connections > 0)
+        (void) printf("  slot %04d -- %d connections, %d requests, %d responses\n",
+                      i,
+                      connections[i].stats.connections, connections[i].stats.requests, connections[i].stats.responses);
+  }
+
+  tmr_destroy();
+  if (ssl_ctx != (SSL_CTX *) 0)
+    SSL_CTX_free(ssl_ctx);
+  exit(0);
+}
+
+
+static long long
+delta_timeval(struct timeval *start, struct timeval *finish)
+{
+  long long delta_secs = finish->tv_sec - start->tv_sec;
+  long long delta_usecs = finish->tv_usec - start->tv_usec;
+  return delta_secs * (long long) 1000000L + delta_usecs;
+}
+
+
+static void *
+malloc_check(size_t size)
+{
+  void *ptr = malloc(size);
+  check(ptr);
+  return ptr;
+}
+
+
+static void *
+realloc_check(void *ptr, size_t size)
+{
+  ptr = realloc(ptr, size);
+  check(ptr);
+  return ptr;
+}
+
+
+static char *
+strdup_check(char *str)
+{
+  str = strdup(str);
+  check((void *) str);
+  return str;
+}
+
+
+static void
+check(void *ptr)
+{
+  if (ptr == (void *) 0) {
+    (void) fprintf(stderr, "%s: out of memory\n", argv0);
+    exit(1);
+  }
+}
diff --git a/tools/http_load/merge_stats.pl b/tools/http_load/merge_stats.pl
new file mode 100644
index 00000000..25506b71
--- /dev/null
+++ b/tools/http_load/merge_stats.pl
@@ -0,0 +1,73 @@
+#!/usr/bin/perl
+
+# A brief file description
+#
+# @section license License
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+my $runs = 0;
+my $fetches = 0;
+my $conns = 0;
+my $parallel = 0;
+my $bytes = 0;
+my $seconds = 0;
+my $mean_bytes = 0;
+my $fetches_sec = 0.0;
+my $bytes_sec = 0.0;
+my %msecs_connect = ( "mean" => 0.0,
+                      "max" => 0.0,
+                      "min" => 0.0 );
+my %msecs_response = ( "mean" => 0.0,
+                       "max" => 0.0,
+                       "min" => 0.0 );
+
+
+while (<>) {
+  my @c = split();
+  if (/fetches on/) {
+    $fetches += $c[0];
+    $conns += $c[3];
+    $parallel += $c[5];
+    $bytes += $c[8];
+    $seconds += $c[11];
+    $runs++;
+  } elsif (/mean bytes/) {
+    $mean_bytes += $c[0];
+  } elsif (/fetches\/sec/) {
+    $fetches_sec += $c[0];
+    $bytes_sec += $c[2];
+  } elsif (/msecs\/connect/) {
+    $msecs_connect{"mean"} += $c[1];
+    $msecs_connect{"max"} += $c[3];
+    $msecs_connect{"min"} += $c[5];
+  } elsif (/msecs\/first/) {
+    $msecs_response{"mean"} += $c[1];
+    $msecs_response{"max"} += $c[3];
+    $msecs_response{"min"} += $c[5];
+  }
+}
+
+print "Total runs: ", $runs, "\n";
+printf "%d fetches on %d conns, %d max parallell, %.5e bytes in %d seconds\n", 
+  $fetches, $conns, $parallel, $bytes, $seconds / $runs;
+print $mean_bytes/$runs, " mean bytes/fetch\n";
+printf "%.2f fetches/sec, %.5e bytes/sec\n",  $fetches_sec, $bytes_sec;
+print "msecs/connect: ", $msecs_connect{"mean"}/$runs, " mean, ",
+  $msecs_connect{"max"}/$runs, " max, ", $msecs_connect{"min"}/$runs, " min\n";
+print "msecs/first-response: ", $msecs_response{"mean"}/$runs, " mean, ",
+  $msecs_response{"max"}/$runs, " max, ", $msecs_response{"min"}/$runs, " min\n";
diff --git a/tools/http_load/port.h b/tools/http_load/port.h
new file mode 100644
index 00000000..1b704cc1
--- /dev/null
+++ b/tools/http_load/port.h
@@ -0,0 +1,134 @@
+/* http_load - multiprocessing http test client
+**
+** Copyright © 1998,1999,2001 by Jef Poskanzer <jef@mail.acme.com>.
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+** SUCH DAMAGE.
+*/
+
+/* port.h - portability defines */
+
+#if defined(__FreeBSD__)
+#define OS_FreeBSD
+#define ARCH "FreeBSD"
+#elif defined(__OpenBSD__)
+#define OS_OpenBSD
+#define ARCH "OpenBSD"
+#elif defined(__NetBSD__)
+#define OS_NetBSD
+#define ARCH "NetBSD"
+#elif defined(linux)
+#define OS_Linux
+#define ARCH "Linux"
+#elif defined(sun)
+#define OS_Solaris
+#define ARCH "Solaris"
+#elif defined(__osf__)
+#define OS_DigitalUnix
+#define ARCH "DigitalUnix"
+#elif defined(__svr4__)
+#define OS_SysV
+#define ARCH "SysV"
+#else
+#define OS_UNKNOWN
+#define ARCH "UNKNOWN"
+#endif
+
+#ifdef OS_FreeBSD
+#include <osreldate.h>
+#define HAVE_DAEMON
+#define HAVE_SETSID
+#define HAVE_SETLOGIN
+#define HAVE_WAITPID
+#define HAVE_HSTRERROR
+#define HAVE_TM_GMTOFF
+#define HAVE_SENDFILE
+#define HAVE_SCANDIR
+#define HAVE_INT64T
+#define HAVE_SRANDOMDEV
+#ifdef SO_ACCEPTFILTER
+#define HAVE_ACCEPT_FILTERS
+#if ( __FreeBSD_version >= 411000 )
+#define ACCEPT_FILTER_NAME "httpready"
+#else
+#define ACCEPT_FILTER_NAME "dataready"
+#endif
+#endif /* SO_ACCEPTFILTER */
+#endif /* OS_FreeBSD */
+
+#ifdef OS_OpenBSD
+#define HAVE_DAEMON
+#define HAVE_SETSID
+#define HAVE_SETLOGIN
+#define HAVE_WAITPID
+#define HAVE_HSTRERROR
+#define HAVE_TM_GMTOFF
+#define HAVE_SCANDIR
+#define HAVE_INT64T
+#endif /* OS_OpenBSD */
+
+#ifdef OS_NetBSD
+#define HAVE_DAEMON
+#define HAVE_SETSID
+#define HAVE_SETLOGIN
+#define HAVE_WAITPID
+#define HAVE_HSTRERROR
+#define HAVE_TM_GMTOFF
+#define HAVE_SCANDIR
+#define HAVE_INT64T
+#endif /* OS_NetBSD */
+
+#ifdef OS_Linux
+#define HAVE_DAEMON
+#define HAVE_SETSID
+#define HAVE_WAITPID
+#define HAVE_TM_GMTOFF
+#define HAVE_SENDFILE
+#define HAVE_LINUX_SENDFILE
+#define HAVE_SCANDIR
+#define HAVE_INT64T
+#endif /* OS_Linux */
+
+#ifdef OS_Solaris
+#define HAVE_SETSID
+#define HAVE_WAITPID
+#define HAVE_MEMORY_H
+#define HAVE_SIGSET
+#define HAVE_INT64T
+#endif /* OS_Solaris */
+
+#ifdef OS_DigitalUnix
+#define HAVE_SETSID
+#define HAVE_SETLOGIN
+#define HAVE_WAITPID
+#define HAVE_SCANDIR
+#define HAVE_TM_GMTOFF
+#define NO_SNPRINTF
+                                /* # define HAVE_INT64T *//* Digital Unix 4.0d doesn't have int64_t */
+#endif /* OS_DigitalUnix */
+
+#ifdef OS_SysV
+#define HAVE_SETSID
+#define HAVE_WAITPID
+#define HAVE_MEMORY_H
+#define HAVE_SIGSET
+#endif /* OS_Solaris */
diff --git a/tools/http_load/timers.c b/tools/http_load/timers.c
new file mode 100644
index 00000000..b9c1909f
--- /dev/null
+++ b/tools/http_load/timers.c
@@ -0,0 +1,313 @@
+/* timers.c - simple timer routines
+**
+** Copyright © 1995,1998,2000 by Jef Poskanzer <jef@mail.acme.com>.
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+** SUCH DAMAGE.
+*/
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "timers.h"
+
+
+#define HASH_SIZE 67
+static Timer *timers[HASH_SIZE];
+static Timer *free_timers = (Timer *) 0;
+static long mstimeout_cache = -1;
+
+ClientData JunkClientData;
+
+
+
+static unsigned int
+hash(Timer * t)
+{
+  /* We can hash on the trigger time, even though it can change over
+   ** the life of a timer via either the periodic bit or the tmr_reset()
+   ** call.  This is because both of those guys call l_resort(), which
+   ** recomputes the hash and moves the timer to the appropriate list.
+   */
+  return ((unsigned int) t->time.tv_sec ^ (unsigned int) t->time.tv_usec) % HASH_SIZE;
+}
+
+
+static void
+l_add(Timer * t)
+{
+  int h = t->hash;
+  Timer *t2;
+  Timer *t2prev;
+
+  t2 = timers[h];
+  if (t2 == (Timer *) 0) {
+    /* The list is empty. */
+    timers[h] = t;
+    t->prev = t->next = (Timer *) 0;
+  } else {
+    if (t->time.tv_sec < t2->time.tv_sec || (t->time.tv_sec == t2->time.tv_sec && t->time.tv_usec <= t2->time.tv_usec)) {
+      /* The new timer goes at the head of the list. */
+      timers[h] = t;
+      t->prev = (Timer *) 0;
+      t->next = t2;
+      t2->prev = t;
+    } else {
+      /* Walk the list to find the insertion point. */
+      for (t2prev = t2, t2 = t2->next; t2 != (Timer *) 0; t2prev = t2, t2 = t2->next) {
+        if (t->time.tv_sec < t2->time.tv_sec ||
+            (t->time.tv_sec == t2->time.tv_sec && t->time.tv_usec <= t2->time.tv_usec)) {
+          /* Found it. */
+          t2prev->next = t;
+          t->prev = t2prev;
+          t->next = t2;
+          t2->prev = t;
+          return;
+        }
+      }
+      /* Oops, got to the end of the list.  Add to tail. */
+      t2prev->next = t;
+      t->prev = t2prev;
+      t->next = (Timer *) 0;
+    }
+  }
+}
+
+
+static void
+l_remove(Timer * t)
+{
+  int h = t->hash;
+
+  if (t->prev == (Timer *) 0)
+    timers[h] = t->next;
+  else
+    t->prev->next = t->next;
+  if (t->next != (Timer *) 0)
+    t->next->prev = t->prev;
+}
+
+
+static void
+l_resort(Timer * t)
+{
+  /* Remove the timer from its old list. */
+  l_remove(t);
+  /* Recompute the hash. */
+  t->hash = hash(t);
+  /* And add it back in to its new list, sorted correctly. */
+  l_add(t);
+}
+
+
+void
+tmr_init(void)
+{
+  int h;
+
+  mstimeout_cache = -1;
+  for (h = 0; h < HASH_SIZE; ++h)
+    timers[h] = (Timer *) 0;
+}
+
+
+Timer *
+tmr_create(struct timeval *nowP, TimerProc * timer_proc, ClientData client_data, long msecs, int periodic)
+{
+  Timer *t;
+
+  if (free_timers != (Timer *) 0) {
+    t = free_timers;
+    free_timers = t->next;
+  } else {
+    t = (Timer *) malloc(sizeof(Timer));
+    if (t == (Timer *) 0)
+      return (Timer *) 0;
+  }
+
+  mstimeout_cache = -1;
+  t->timer_proc = timer_proc;
+  t->client_data = client_data;
+  t->msecs = msecs;
+  t->periodic = periodic;
+  if (nowP != (struct timeval *) 0)
+    t->time = *nowP;
+  else
+    (void) gettimeofday(&t->time, (struct timezone *) 0);
+  t->time.tv_sec += msecs / 1000L;
+  t->time.tv_usec += (msecs % 1000L) * 1000L;
+  if (t->time.tv_usec >= 1000000L) {
+    t->time.tv_sec += t->time.tv_usec / 1000000L;
+    t->time.tv_usec %= 1000000L;
+  }
+  t->hash = hash(t);
+  /* Add the new timer to the proper active list. */
+  l_add(t);
+
+  return t;
+}
+
+
+struct timeval *
+tmr_timeout(struct timeval *nowP)
+{
+  long msecs;
+  static struct timeval timeout;
+
+  msecs = tmr_mstimeout(nowP);
+  if (msecs == INFTIM)
+    return (struct timeval *) 0;
+  timeout.tv_sec = msecs / 1000L;
+  timeout.tv_usec = (msecs % 1000L) * 1000L;
+  return &timeout;
+}
+
+
+long
+tmr_mstimeout(struct timeval *nowP)
+{
+  if (mstimeout_cache > -1) {
+    return mstimeout_cache;
+  } else {
+    int h;
+    int gotone;
+    long msecs, m;
+    Timer *t;
+
+    gotone = 0;
+    msecs = 0;                  /* make lint happy */
+    /* Since the lists are sorted, we only need to look at the
+     ** first timer on each one.
+     */
+    for (h = 0; h < HASH_SIZE; ++h) {
+      t = timers[h];
+      if (t != (Timer *) 0) {
+        m = (t->time.tv_sec - nowP->tv_sec) * 1000L + (t->time.tv_usec - nowP->tv_usec) / 1000L;
+        if (!gotone) {
+          msecs = m;
+          gotone = 1;
+        } else if (m < msecs)
+          msecs = m;
+      }
+    }
+    if (!gotone)
+      return INFTIM;
+    if (msecs <= 0)
+      msecs = 0;
+    mstimeout_cache = msecs;
+
+    return msecs;
+  }
+}
+
+
+void
+tmr_run(struct timeval *nowP)
+{
+  int h;
+  Timer *t;
+  Timer *next;
+
+  for (h = 0; h < HASH_SIZE; ++h)
+    for (t = timers[h]; t != (Timer *) 0; t = next) {
+      next = t->next;
+      /* Since the lists are sorted, as soon as we find a timer
+       ** that isn't ready yet, we can go on to the next list.
+       */
+      if (t->time.tv_sec > nowP->tv_sec || (t->time.tv_sec == nowP->tv_sec && t->time.tv_usec > nowP->tv_usec))
+        break;
+
+      /* Invalidate mstimeout cache, since we're modifying the queue */
+      mstimeout_cache = -1;
+
+      (t->timer_proc) (t->client_data, nowP);
+      if (t->periodic) {
+        /* Reschedule. */
+        t->time.tv_sec += t->msecs / 1000L;
+        t->time.tv_usec += (t->msecs % 1000L) * 1000L;
+        if (t->time.tv_usec >= 1000000L) {
+          t->time.tv_sec += t->time.tv_usec / 1000000L;
+          t->time.tv_usec %= 1000000L;
+        }
+        l_resort(t);
+      } else
+        tmr_cancel(t);
+    }
+}
+
+
+void
+tmr_reset(struct timeval *nowP, Timer * t)
+{
+  mstimeout_cache = -1;
+  t->time = *nowP;
+  t->time.tv_sec += t->msecs / 1000L;
+  t->time.tv_usec += (t->msecs % 1000L) * 1000L;
+  if (t->time.tv_usec >= 1000000L) {
+    t->time.tv_sec += t->time.tv_usec / 1000000L;
+    t->time.tv_usec %= 1000000L;
+  }
+  l_resort(t);
+}
+
+
+void
+tmr_cancel(Timer * t)
+{
+  mstimeout_cache = -1;
+  /* Remove it from its active list. */
+  l_remove(t);
+  /* And put it on the free list. */
+  t->next = free_timers;
+  free_timers = t;
+  t->prev = (Timer *) 0;
+}
+
+
+void
+tmr_cleanup(void)
+{
+  Timer *t;
+
+  mstimeout_cache = -1;
+  while (free_timers != (Timer *) 0) {
+    t = free_timers;
+    free_timers = t->next;
+    free((void *) t);
+  }
+}
+
+
+void
+tmr_destroy(void)
+{
+  int h;
+
+  mstimeout_cache = -1;
+  for (h = 0; h < HASH_SIZE; ++h)
+    while (timers[h] != (Timer *) 0)
+      tmr_cancel(timers[h]);
+  tmr_cleanup();
+
+}
diff --git a/tools/http_load/timers.h b/tools/http_load/timers.h
new file mode 100644
index 00000000..9bd3dd40
--- /dev/null
+++ b/tools/http_load/timers.h
@@ -0,0 +1,107 @@
+/* timers.h - header file for timers package
+**
+** Copyright © 1995,1998,1999,2000 by Jef Poskanzer <jef@mail.acme.com>.
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+** SUCH DAMAGE.
+*/
+
+#ifndef _TIMERS_H_
+#define _TIMERS_H_
+
+#include <sys/time.h>
+
+#ifndef INFTIM
+#define INFTIM -1
+#endif /* INFTIM */
+
+/* ClientData is a random value that tags along with a timer.  The client
+** can use it for whatever, and it gets passed to the callback when the
+** timer triggers.
+*/
+typedef union
+{
+  void *p;
+  int i;
+  long l;
+} ClientData;
+
+extern ClientData JunkClientData;       /* for use when you don't care */
+
+/* The TimerProc gets called when the timer expires.  It gets passed
+** the ClientData associated with the timer, and a timeval in case
+** it wants to schedule another timer.
+*/
+typedef void TimerProc(ClientData client_data, struct timeval *nowP);
+
+/* The Timer struct. */
+typedef struct TimerStruct
+{
+  TimerProc *timer_proc;
+  ClientData client_data;
+  long msecs;
+  int periodic;
+  struct timeval time;
+  struct TimerStruct *prev;
+  struct TimerStruct *next;
+  int hash;
+} Timer;
+
+/* Initialize the timer package. */
+extern void tmr_init(void);
+
+/* Set up a timer, either periodic or one-shot. Returns (Timer*) 0 on errors. */
+extern Timer *tmr_create(struct timeval *nowP, TimerProc * timer_proc, ClientData client_data,
+                         long msecs, int periodic);
+
+/* Returns a timeout indicating how long until the next timer triggers.  You
+** can just put the call to this routine right in your select().  Returns
+** (struct timeval*) 0 if no timers are pending.
+*/
+extern struct timeval *tmr_timeout(struct timeval *nowP);
+
+/* Returns a timeout in milliseconds indicating how long until the next timer
+** triggers.  You can just put the call to this routine right in your poll().
+** Returns INFTIM (-1) if no timers are pending.
+*/
+extern long tmr_mstimeout(struct timeval *nowP);
+
+/* Run the list of timers. Your main program needs to call this every so often,
+** or as indicated by tmr_timeout().
+*/
+extern void tmr_run(struct timeval *nowP);
+
+/* Reset the clock on a timer, to current time plus the original timeout. */
+extern void tmr_reset(struct timeval *nowP, Timer * timer);
+
+/* Deschedule a timer.  Note that non-periodic timers are automatically
+** descheduled when they run, so you don't have to call this on them.
+*/
+extern void tmr_cancel(Timer * timer);
+
+/* Clean up the timers package, freeing any unused storage. */
+extern void tmr_cleanup(void);
+
+/* Cancel all timers and free storage, usually in preparation for exitting. */
+extern void tmr_destroy(void);
+
+#endif /* _TIMERS_H_ */
diff --git a/tools/jtest/README b/tools/jtest/README
new file mode 100644
index 00000000..77682283
--- /dev/null
+++ b/tools/jtest/README
@@ -0,0 +1,78 @@
+jtest is a performance stress tool for high performance proxy server
+Apache Traffic Server.
+
+jtest works at both UA and OS side when benchmarking the proxy, sure 
+you can run client or server only.
+
+
+Here is a step-by-step guide for benchmark Apache Traffic Server with jtest:
+On localhost:
+1, setup the remap rules in Apache Traffic Server:
+  add the following line into remap.config:
+    map http://localhost:9080/ http://127.0.0.1:9080/
+2, run jtest:
+  jtest
+  which is equal to "jtest -s 9080 -S localhost -p 8080 -P localhost",
+  will setup 100 connections (-c), push a hit ratio at 40% (-z), run as
+  fast as possible.
+
+The output of jtest:
+ con  new    ops 1byte   lat   bytes/per     svrs  new  ops    total   time  err
+ 100  468 2329.6    39    39 36323315/363233   617  617  617  46131904 136980.9    0
+ 100  471 2361.5    39    40 35993941/359939   619  619  619  45466393 136981.9    0
+ 100  465 2327.0    40    41 35385495/353854   607  607  607  45095273 136982.9    0
+  con: number of the con-current connections
+  new: the number of created connections
+  ops: the request handled per second
+  lat: response time
+
+On separate hosts:
+1, determine the roles:
+  we take 'ts.cn' as the domain we are benchmarking, and 192.168.0.1 as
+  the server which is running Apache Traffic Server, 192.168.0.2 as the
+  host we run jtest.
+2, setup the remap rules in Apache Traffic Server:
+  in our case, we should add the following lines into remap.config:
+    map http://ts.cn:9080/ http://192.168.0.2:9080/
+3, we run jtest from 192.168.0.2:
+  jtest -S ts.cn -P 192.168.0.1
+
+If you have many hosts running jtest:
+1, setup the remap rules in Apache Traffic Server:
+  in our case, we should add the following lines into remap.config:
+    map http://ts.cn:9080/ http://192.168.0.2:9080/
+    map http://ts.cn:9081/ http://192.168.0.2:9081/
+    map http://ts.cn:9082/ http://192.168.0.3:9082/
+    map http://ts.cn:9083/ http://192.168.0.3:9083/
+    map http://ts.cn:9084/ http://192.168.0.4:9084/
+2, run test:
+  on 192.168.0.2:
+    jtest -S ts.cn -s 9080 -P 192.168.0.1
+    jtest -S ts.cn -s 9081 -P 192.168.0.1
+  on 192.168.0.3:
+    jtest -S ts.cn -s 9082 -P 192.168.0.1
+    jtest -S ts.cn -s 9083 -P 192.168.0.1
+  on 192.168.0.4:
+    jtest -S ts.cn -s 9084 -P 192.168.0.1
+
+
+Some common used options:
+-c, --clients           int   100       Clients
+  compare to the -c in ab
+  by default, jtest will make 100 connections.
+
+-k, --keepalive         int   4         Keep-Alive Length
+-K, --keepalive_cons    int   4         # Keep-Alive Connections (0:unlimit)
+  compare to -k in ab
+  how many Keep-Alive connections and how many requests for each Keep-Alive
+  connections
+
+-z, --hitrate           dbl   0.400     Hit Rate
+  by default, the hit ratio is 40%
+
+-u, --urls              str   (null)    URLs from File
+  you can provide your own URLs, if you do not use jtest on the OS side.
+
+-y, --only_clients      on    false     Only Clients
+-Y, --only_server       on    false     Only Server
+  in-case of you do not use both the server and client
diff --git a/tools/jtest/README.zh.md b/tools/jtest/README.zh.md
new file mode 100644
index 00000000..d8163642
--- /dev/null
+++ b/tools/jtest/README.zh.md
@@ -0,0 +1,409 @@
+#              jtest与ATS压力测试                    #
+
+作为一个高性能的proxy代理服务器，Apache Traffic Server是很难用常用工具进行细致的性能压测的，本文尝试对性能压测进行定义并介绍如何在这种高性能、高并发、大规模的系统中，进行破坏级别的压力测试。
+
+##                   压力测试的定义                            ##
+
+很多情况下，大家都希望在服务器上线前、业务上线前，对业务的支撑能力做一个测试，希望知道自己的改动是不是在进步，是不是能够比较平稳的抗住预期的流量压力，等等，总结下来压力测试的主要用途有：
+
+1. 确定新版本的改进不会引起性能问题
+2. 找出业务的单机qps数据，并定义好安全的水位线
+3. 使用性能数据作为硬件采购以及预算的参数
+4. 更好的理解业务的波动对线上系统的压力
+
+日常开发中，最最有意义的是，找出新代码是否在性能上有回退；找出新的性能改进到底提高了多少。
+
+根据压力的来源，压力测试又会被分为：
+
+1. 实验室仿真压力测试
+
+   实验室仿真，在http proxy服务器测试场景下，客户端和服务器端的数据和请求，都是由工具生成的。
+2. 业务copy仿真压力测试
+
+   显然，如果希望服务器程序真正的能够在线上跑，简单的实验室测试与业务需求肯定是差异非常大，因此就有了为什么不把业务流量复制到系统中来的想法。这也就是所谓的流量复制的压测方式。
+
+
+##                   jtest工具初步介绍                        ##
+
+jtest是一个专门用于proxy/cache系统的实验室性能压力测试工具，具有极高的性能。能够同时担当后台服务器和客户端。ATS系统专用的性能压测工具。
+
+商业的压力测试工具，一般也是一个所谓的盒子，自带客户端、服务器端，能够自己生成模拟流量、copy客户提交流量等，很像目前jtest的模式
+
+最早的jtest被设计为可以分布式的集群上运行，用上层脚本系统起停，来压测一个ATS集群系统，早先的系统并没有考虑像现在这样的多核CPU普遍性。
+
+###                      jtest简单说明                                ###
+
+### 基本测试
+jtest作为专门针对ATS的测试，已经就ATS的最简单配置下，做了很多简化的默认参数，以便于用户快速的上手，我们以最简单的本机jtest压测本机的默认配置ATS为例子，介绍最基本的jtest用法：
+
+1. 设置ATS的remap规则：
+
+    在默认的空remap.config中添加一条规则
+    
+    > map http://localhost:9080/ http://127.0.0.1:9080/
+
+2. 运行jtest：
+    > jtest
+
+  这个命令默认的参数，即相当于 "jtest -s 9080 -S localhost -p 8080 -P localhost -c 100 -z 0.4"，将会起100个连接使用127.0.0.1的9080端口作为jtest源服务器（jtest监听），对本机（localhost）的8080端口上跑的ATS进行测试，并控制整体命中率在40%。
+
+输出结果：
+
+    con  new    ops 1byte   lat   bytes/per     svrs  new  ops    total   time  err
+    100  468 2329.6    39    39 36323315/363233   617  617  617  46131904 136980.9    0
+    100  471 2361.5    39    40 35993941/359939   619  619  619  45466393 136981.9    0
+    100  465 2327.0    40    41 35385495/353854   607  607  607  45095273 136982.9    0
+
+其中：
+
+* con: 并发连接数。并发连接数，单进程单cpu处理能力取决于CPU与测试场景，请酌情设置，推荐小于9999
+* new: 每秒新建连接数。这个参数取决于并发连接数量与长连接效率。
+* ops: 每秒请求数。也作qps，是比较体现服务器性能的关键指标。
+* 1byte：首字节平均响应时间。这个是体现整体转发效率的关键指标。
+* lat: 完成请求整体响应时间（收到最后一个字节）。cache系统性能关键指标。
+* bytes/per：每秒字节流量/每秒每连接流量
+* svrs：服务器端请求数
+* new：服务器端新建连接数
+* ops：服务器端每秒请求数
+* total：服务器端总请求的字节数
+* time：测试时间（秒）
+* err：出错数量（连接数）。稳定性测试中，这个数据可以作为一个关键指标。
+
+### jtest命令详解
+jtest有非常多的参数，这些参数的组合又会产生很多特殊的效果，我们将从完整的使用说明开始，详细说明jtest测试的命令参数：
+
+
+    localhost:tools zym$ ./jtest/jtest -h
+    JTest Version 1.94  - Dec  9 2013 17:11:24 (zym@zymMBPr.local)
+    Usage: /Users/zym/git/traffic.git/tools/jtest/.libs/jtest [--SWITCH [ARG]]
+
+#### 参数格式：
+参数格式是 短参数_长参数_类型_默认值_参数说明，多数参数能做到自我说明比较详细，更多说明参见下面的说明以及后续高级用法示例。
+
+      switch__________________type__default___description
+
+#### 测试机器IP与端口设置：
+这几个设置是最最常用的几个参数
+
+      -p, --proxy_port        int   8080      Proxy Port
+      -P, --proxy_host        str   localhost Proxy Host
+      -s, --server_port       int   0         Server Port (0:auto select)
+      -S, --server_host       str   (null)    Server Host (null:localhost)
+
+* -p -P是用来指定要测试的ATS服务器地址、端口信息
+* -s -S是用来指定要测试的ATS服务器，用来作为源的jtest监听域名（IP）和端口信息。
+
+#### 服务器压力控制：
+服务器的压力仿真，主要是主动生成的随机流量控制
+
+      -r, --server_speed      int   0         Server Bytes Per Second (0:unlimit)
+      -w, --server_delay      int   0         Server Initial Delay (msec)
+      -c, --clients           int   100       Clients
+      -R, --client_speed      int   0         Client Bytes Per Second (0:unlimit)
+      -b, --sbuffersize       int   4096      Server Buffer Size
+      -B, --cbuffersize       int   2048      Client Buffer Size
+      -a, --average_over      int   5         Seconds to Average Over
+      -z, --hitrate           dbl   0.400     Hit Rate
+      -Z, --hotset            int   1000      Hotset Size
+      -i, --interval          int   1         Reporting Interval (seconds)
+      -k, --keepalive         int   4         Keep-Alive Length
+      -K, --keepalive_cons    int   4         # Keep-Alive Connections (0:unlimit)
+      -L, --docsize           int   -1        Document Size (-1:varied)
+      -j, --skeepalive        int   4         Server Keep-Alive (0:unlimit)
+      
+* -r -w -R，控制客户端、服务器端的速度，多数压测的情况下，不会做特殊限制，在需要仿真大并发、大延迟等情况下，可以做控制。
+* -b -B，模拟客户端和服务器端的buffer大小设置，buffer的大小可以极大的影响IO的能力，也会影响内存的占用。
+* -z -Z，这是用来控制命中率和热点数据。命中率是由热点数据的命中，加miss的请求。热点数据的多少，也会影响服务器的内存使用。
+* -k -K -j，控制客户端和服务器的长连接。
+* -i，用来控制jtest汇报间隔时间。
+* -L，用来控制jtest生成的随机url的大小，默认-1表示完全随机，没有控制。
+
+#### 控制输入输出的配置：
+
+      -x, --show_urls         on    false     Show URLs before they are accessed
+      -X, --show_headers      on    false     Show Headers
+      -f, --ftp               on    false     FTP Requests
+      - , --ftp_mdtm_err_rate dbl   0.000     FTP MDTM 550 Error Rate
+      - , --ftp_mdtm_rate     int   0         FTP MDTM Update Rate (sec, 0:never)
+
+* -x -X，用来debug，显示url以及所有header头，是个排查利器。
+* ftp相关的是用来压测ftp的，不过ATS对ftp的支持已经删除啦。
+
+#### 测试的流程处理：
+jtest测试，是可以进行复杂的情况，比如对一个网站进行深度抓取测试，对反向、正向、透明模式测试
+
+      -l, --fullpage          on    false     Full Page (Images)
+      -F, --follow            on    false     Follow Links
+      -J, --same_host         on    false     Only follow URLs on same host
+      -t, --test_time         int   0         run for N seconds (0:unlimited)
+      -u, --urls              str   (null)    URLs from File
+      -U, --urlsdump          str   (null)    URLs to File
+      -H, --hostrequest       int   0         Host Request(1=yes,2=transparent)
+      -C, --check_content     on    false     Check returned content
+      - , --nocheck_length    on    false     Don't check returned length
+      -m, --obey_redirects    off   true      Obey Redirects
+      -M, --embed URL         off   true      Embed URL in synth docs
+
+* -l -F -J，用来对html文件进行解析，并提前其中的所有图片元素等进行深度抓取的控制。
+* -t，控制测试运行时间，默认一直跑
+* -u -U，给jtest指定url，纪录jtest跑的url（如过存在解析html的方式，则纪录的可能会多于指定的）
+* -H，控制服务器测试模式，是否带host头，决定了服务器是跑在反向代理、正向代理、透明代理模式
+* -C --nocheck_length，是否检查返回的内容、长度
+* -m，是否跳转
+* -M，控制是否把url放到doc里
+
+
+#### 请求的分散度与热点：
+hash是jtest、ats里无处不在的，如何让hash互相影响，甚至测试hash碰撞等情况？？
+
+      -q, --url_hash_entries  int   1000000   URL Hash Table Size (-1:use file size)
+      -Q, --url_hash_filename str   (null)    URL Hash Table Filename
+
+-q -Q，hash控制
+#### 服务器的控制：
+服务器的使用类型控制，可以让jtest跑在不同的模式下
+
+      -y, --only_clients      on    false     Only Clients
+      -Y, --only_server       on    false     Only Server
+      -A, --bandwidth_test    int   0         Bandwidth Test
+      -T, --drop_after_CL     on    false     Drop after Content-Length
+
+* -y -Y，可以将jtest单独跑为服务器和客户端分离的服务。
+* -A，-T，可以做更快的流量压测工具。
+
+#### 其他控制信息机制：
+
+      -V, --version           on    false     Version
+      -v, --verbose           on    false     Verbose Flag
+      -E, --verbose_errors    off   true      Verbose Errors Flag
+
+* -v -E，可以用于debug错误等
+
+#### 请求的随机机制：
+本类参数，主要控制服务器和请求的随机程度、复杂度，构建一个复杂的测试用例，将会对服务器的稳定性测试起到很好的效果。
+
+      -D, --drand             int   0         Random Number Seed
+      -I, --ims_rate          dbl   0.500     IMS Not-Changed Rate
+      -g, --client_abort_rate dbl   0.000     Client Abort Rate
+      -G, --server_abort_rate dbl   0.000     Server Abort Rate
+      -n, --extra_headers     int   0         Number of Extra Headers
+      -N, --alternates        int   0         Number of Alternates
+      -e, --client_rate       int   0         Clients Per Sec
+      -o, --abort_retry_speed int   0         Abort/Retry Speed
+      - , --abort_retry_bytes int   0         Abort/Retry Threshhold (bytes)
+      - , --abort_retry_secs  int   5         Abort/Retry Threshhold (secs)
+      -W, --reload_rate       dbl   0.000     Reload Rate
+
+* -D，用于生成url的随机数，如果有多个jtest并发运行，可以对这个随机的seed进行区分以控制cache的多小等
+* -I，请求的内容中，带的IMS比例
+* -g -G，客户端和服务器的Abort比例
+* -n -N，控制客户端发送的header数量，服务器的内容的副本数量
+* -e，每秒的客户端数量
+* -o --abort_retry_bytes --abort_retry_secs，控制重试的速度
+* -W 控制内容的重复度？？
+
+#### 服务的仿真程度：
+
+      -O, --compd_port        int   0         Compd port
+      -1, --compd_suite       on    false     Compd Suite
+      -2, --vary_user_agent   int   0         Vary on User-Agent (use w/ alternates)
+      -3, --content_type      int   0         Server Content-Type (1 html, 2 jpeg)
+      -4, --request_extension int   0         Request Extn (1".html" 2".jpeg" 3"/")
+      -5, --no_cache          int   0         Send Server no-cache
+      -7, --zipf_bucket       int   1         Bucket size (of 1M buckets) for Zipf
+      -8, --zipf              dbl   0.000     Use a Zipf distribution with this alpha (say 1.2)
+      -9, --evo_rate          dbl   0.000     Evolving Hotset Rate (evolutions/hour)
+
+* -0 -1，compress服务
+* -2，控制是否对不同的UA启用多副本
+* -3，服务器返回的内容的类型
+* -4，请求的内容类型
+* -5，是否发送给服务器no-cache控制
+* -7 -8，zipf服务
+* -9，热点的偏移调整
+
+#### 其他信息：
+
+      -d, --debug             on    false     Debug Flag
+      -h, --help                              Help
+
+
+=============================================================================
+#### 上面参数中一些经常用的参数
+
+* -c, --clients           int   100       Clients
+
+  跟ab的-c参数类似，默认jtest会启用100并发
+
+* -k, --keepalive         int   4         Keep-Alive Length
+* -K, --keepalive_cons    int   4         # Keep-Alive Connections (0:unlimit)
+
+  跟ab的-k参数功能类似，控制长连接的数量以及长连接的效率
+
+* -z, --hitrate           dbl   0.400     Hit Rate
+
+  命中率40%，在反向代理里太低了
+
+* -u, --urls              str   (null)    URLs from File
+
+  提供自己的urls，可以像http_load一样使用jtest
+
+* -y, --only_clients      on    false     Only Clients
+* -Y, --only_server       on    false     Only Server
+
+  如果你需要独立运行jtest客户端和服务器端，以提高性能和吞吐量等
+
+## jtest进阶用法
+本段将会介绍如何更好的使用jtest压榨ATS性能，避免瓶颈问题
+### 独立测试机器
+进阶用法里，我们先尝试用用2个机器，一个跑jtest，一个跑ATS，做压力测试：
+
+1. 定义机器角色：
+
+   我们使用 'ts.cn' 作为压测的URL的域名，192.168.0.1作为我们的ATS服务器，192.168.0.2作为我们的测试端，跑jtest。
+
+2. 设置ATS的map规则：
+
+   在我们的例子里，我们应该设置如下规则：
+
+   `map http://ts.cn:9080/ http://192.168.0.2:9080/`
+3. 在192.168.0.2运行jtest命令：
+
+   `jtest -S ts.cn -P 192.168.0.1`
+
+在这个例子里，我们设置了服务器端的域名为`ts.cn`，同时给了`-P`参数指定了要测试的服务器是192.168.0.1，这样我们的jtest将会使用192.168.0.1:8080作为代理服务器，使用ts.cn作为要压测的域名来进行压力测试。
+
+### 一个机器多个jtest
+由于jtest是单进程模式，进程压测一个当前多大16个core以上的ATS系统，肯定是压不动的，如何才能更好的进行压测呢？接上面的例子，我们可以在测试端多跑几个jtest进程，我们暂跑6个：
+
+1. 定义机器角色：
+
+   我们使用 'ts.cn' 作为压测的URL的域名，192.168.0.1作为我们的ATS服务器，192.168.0.2作为我们的测试端，跑jtest。
+
+2. 设置ATS的map规则：
+
+   在我们的例子里，我们应该设置如下规则：
+
+        map http://ts.cn:9080/ http://192.168.0.2:9080/
+        map http://ts.cn:9081/ http://192.168.0.2:9081/
+        map http://ts.cn:9082/ http://192.168.0.2:9082/
+        map http://ts.cn:9083/ http://192.168.0.2:9083/
+        map http://ts.cn:9084/ http://192.168.0.2:9084/
+        map http://ts.cn:9085/ http://192.168.0.2:9085/
+
+
+3. 在192.168.0.2运行对应的6个jtest命令：
+
+        jtest -S ts.cn -s 9080 -P 192.168.0.1 &
+        jtest -S ts.cn -s 9081 -P 192.168.0.1 &
+        jtest -S ts.cn -s 9082 -P 192.168.0.1 &
+        jtest -S ts.cn -s 9083 -P 192.168.0.1 &
+        jtest -S ts.cn -s 9084 -P 192.168.0.1 &
+        jtest -S ts.cn -s 9085 -P 192.168.0.1 &
+
+这样就可以啦，问题是一个窗口里会持续打印很多很多结果信息，不太容易分辨问题。如何更优雅的跑多个机器多个jtest能？我们下面进行详细介绍
+
+## jtest集群用法
+在服务器集群中，一对一的压测是很见的，通常我们为减少jtest性能瓶颈，会采用多个机器，多个jtest一起跑的情况，我们将需要引入其他控制机制、数据统计机制才好。
+
+### screen的并行jtest管理
+首先，我们必须有一个并发测试的机制，单机多进程、多机并行，并且可以统计各个进程返回的结果。当初ATS有一个测试框架，可以执行多个机器的并行测试，并能够汇总多个jtest的返回结果。我们这里采用简单的模式，screen脚本：
+
+screen的`-c`参数，可以很方便的启动一个screen脚本，在这个脚本里，可以启动多个screen窗口，我们采用这个机制来并发的启动多个jtest命令，由于screen同时有后台驻留的功能，可以确保我们在需要的时候回来看看各个jtest的测试结果，下面是一个screen的脚本：
+
+    screen jtest -P 192.168.0.1 -S ts.cn -s 192.168.0.2 -z 1.0 -D 9080 -k 2 -c 30 -Z 1000 -q 10000 -L 50000
+    screen jtest -P 192.168.0.1 -S ts.cn -s 192.168.0.2 -z 1.0 -D 9081 -k 2 -c 30 -Z 1000 -q 10000
+    screen top
+    detach
+
+我们采用screen的`-X quit`命令，来停止jtest压测。同时，为了表示各个目标的机器，我们可以给各个screen打上标识，以方便区分一个机器上的多个screen。
+
+### N:N的测试机器
+为了测试，我们假定有10台测试机器192.168.0.{10..19}，10台服务器192.168.0.{100..109}（组成cluster或其他），这里是我用来生成测试的一些小脚本：
+
+修改测试方法jtest参数
+
+    # c为服务器ip 10..19
+    # s为客户端ip 10..19
+    # i为每个机器最多对一个服务器起10个进程压测 0..9
+    # 我们的端口为 $c$s$i
+    
+    for c in {10..19}
+    do
+      for s in {20..29}
+      do
+        for i in {0..9}
+          do echo map http://ts.cn:$c$s$i/ http://192.168.0.$c:$c$s$i/
+        done
+      done
+    done
+
+这会生成一个很长的map文件：
+
+    map http://ts.cn:10200/ http://192.168.0.10:10200/
+    map http://ts.cn:10201/ http://192.168.0.10:10201/
+    map http://ts.cn:10202/ http://192.168.0.10:10202/
+    .
+    .
+    .
+    map http://ts.cn:19297/ http://192.168.0.19:19297/
+    map http://ts.cn:19298/ http://192.168.0.19:19298/
+    map http://ts.cn:19299/ http://192.168.0.19:19299/
+
+我们就可以用来做一些测试的screen脚本，我们在每个测试机器上，生成一些针对每个福尔起机器的脚本：
+    
+    for c in {10..19};do for s in {20..29};do echo "
+    screen jtest -P 192.168.0.${s} -S ts.cn -s ${c}${s}0 -z 1.0 -D ${c}${s} -k 2 -c 30 -Z 1000 -q 10000 -L 5000
+    screen jtest -P 192.168.0.${s} -S ts.cn -s ${c}${s}1 -z 1.0 -D ${c}${s} -k 2 -c 30 -Z 1000 -q 10000 -L 10000
+    screen jtest -P 192.168.0.${s} -S ts.cn -s ${c}${s}2 -z 1.0 -D ${c}${s} -k 2 -c 30 -Z 1000 -q 10000 -L 10000
+    screen jtest -P 192.168.0.${s} -S ts.cn -s ${c}${s}3 -z 1.0 -D ${c}${s} -k 2 -c 30 -Z 1000 -q 10000 -L 20000
+    screen jtest -P 192.168.0.${s} -S ts.cn -s ${c}${s}4 -z 1.0 -D ${c}${s} -k 2 -c 30 -Z 1000 -q 10000 -L 50000
+    screen jtest -P 192.168.0.${s} -S ts.cn -s ${c}${s}5 -z 1.0 -D ${c}${s} -k 2 -c 30 -Z 1000 -q 10000
+    screen top
+    detach
+    " | ssh root@192.168.0.$c tee jtest.screen.$s;done;done
+
+然后，测试脚本的启动将会非常简单：
+
+    for c in {10..19}
+    do
+      for s in {20..29}
+      do
+        ssh -t 192.168.0.$c screen -R jtest$s -c jtest.screen.$s
+      done
+    done
+
+停止测试的命令也是很简单的：
+
+    for c in {10..19}
+    do
+      for s in {20..29}
+      do
+        ssh -t 192.168.0.$c screen -Rx jtest$s -X quit
+      done
+    done
+
+### 测试的定义
+通过上面的screen脚本的定义，我们可以随时修改其中的重要设置，如-c -z等等，甚至增加一些客户端仿真的随机因素等等，具体情况不再赘述。
+
+
+## 如何更好的仿真出线上的复杂情况
+TBD
+
+## 如何使用jtest来跑stress测试
+TBD
+
+## 如何分析jtest爆出的一些ATS问题
+TBD
+
+## jtest的待改进问题以及后续计划
+* 支持https??
+* 支持spdy??
+* 单进程太弱？？
+* 集群压测上层调度工具？？？
+* 循环（随机）压测urls提供的列表，类似http_load一样
+
+
+
+
+
diff --git a/tools/jtest/jtest.cc b/tools/jtest/jtest.cc
new file mode 100644
index 00000000..168ddfe8
--- /dev/null
+++ b/tools/jtest/jtest.cc
@@ -0,0 +1,4073 @@
+/** @file
+
+  A brief file description
+
+  @section license License
+
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <signal.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <poll.h>
+#include <netinet/tcp.h>
+#include <sys/resource.h>
+#include <math.h>
+#include <limits.h>
+#include <sys/mman.h>
+
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS 1
+#endif
+
+#include <inttypes.h>
+
+#include <time.h>
+#include <sys/time.h>
+#include <stdlib.h>
+
+#include "ink_defs.h"
+#include "ink_assert.h"
+#include "INK_MD5.h"
+#include "ParseRules.h"
+#include "ink_time.h"
+#include "ink_args.h"
+
+/*
+ FTP - Traffic Server Template
+   220 i5 FTP server (Version wu-2.4(3) Mon Jul 8 14:39:48 PDT 1996) ready.
+   USER anonymous
+   331 Guest login ok, send your complete e-mail address as password.
+   PASS traffic_server@inktomi.com
+   230 Guest login ok, access restrictions apply.
+   CWD .
+   250 CWD command successful.
+   TYPE I
+   200 Type set to I.
+   PASV
+   227 Entering Passive Mode (128,174,5,14,16,238)
+   RETR foo
+   LIST
+   150 Opening ASCII mode data connection for /bin/ls.
+*/
+
+#define MAX_URL_LEN 1024
+
+//
+// Compilation Options
+//
+
+#define SERVER_BUFSIZE             4096
+#define CLIENT_BUFSIZE             2048
+#define MAX_BUFSIZE                (65536 + 4096)
+
+//#define RETRY_CLIENT_WRITE_ERRORS
+#define VERSION_NUM "$Revision: 1.94 $"
+#if defined(BUILD_PERSON) && defined(BUILD_MACHINE)
+#define JTEST_VERSION ("JTest Version %s - " __DATE__ " " __TIME__ \
+                 " (" BUILD_PERSON "@" BUILD_MACHINE ")\n" )
+#else
+#define JTEST_VERSION ("JTest Version %s - " __DATE__ " " __TIME__ "\n")
+#endif
+// #define PRINT_LOCAL_PORT
+
+//
+// Contants
+//
+#define MAXFDS                65536
+#define HEADER_DONE           -1
+#define POLL_GROUP_SIZE       800
+#define MAX_RESPONSE_LENGTH   1000000
+#define HEADER_SIZE           10000
+#define POLL_TIMEOUT          10
+#define STATE_FTP_DATA_READY  0xFAD
+#define MAX_DEFERED_URLS      10000
+#define DEFERED_URLS_BLOCK    2000
+
+static const char * hexdigits = "0123456789ABCDEFabcdef";
+static const char * dontunescapify = "#;/?+=&:@%";
+static const char * dontescapify = "#;/?+=&:@~.-_%";
+
+enum FTP_MODE {
+  FTP_NULL,
+  FTP_PORT,
+  FTP_PASV
+};
+
+typedef int (*accept_fn_t)(int);
+typedef int (*poll_cb)(int);
+
+static void jtest_usage(const ArgumentDescription * argument_descriptions,
+                        unsigned n_argument_descriptions, const char * arg);
+
+static int read_request(int sock);
+static int write_request(int sock);
+static int make_client (unsigned int addr, int port);
+static void make_bfc_client (unsigned int addr, int port);
+static int make_url_client(const char * url,const char * base_url = 0, bool seen = false,
+                           bool unthrottled = false);
+static int write_ftp_response(int sock);
+static void interval_report();
+static void undefer_url(bool unthrottled = false);
+static void done();
+static int is_done();
+static int open_server(unsigned short int port, accept_fn_t accept_fn);
+static int accept_ftp_data (int sock);
+
+static char ** defered_urls = NULL;
+static int n_defered_urls = 0;
+static int server_fd = 0;
+static int server_port = 0;
+static int proxy_port = 8080;
+static unsigned int proxy_addr = 0;
+static unsigned int local_addr = 0;
+static char proxy_host[81] = "localhost";
+static char local_host[81];
+static int verbose = 0;
+static int verbose_errors = 1;
+static int debug = 0;
+static int nclients = 100;
+static int current_clients = 0;
+static int client_speed = 0;
+static int check_content = 0;
+static int nocheck_length = 0;
+static int obey_redirects = 1;
+static int only_clients = 0;
+static int only_server = 0;
+static int drop_after_CL = 0;
+static int server_speed = 0;
+static int server_delay = 0;
+static int interval = 1;
+static int sbuffersize = SERVER_BUFSIZE;
+static int cbuffersize = CLIENT_BUFSIZE;
+static int test_time = 0;
+static int last_fd = -1;
+static char * response_buffer = NULL;
+static int errors = 0;
+static int clients = 0, running_clients = 0, new_clients = 0, total_clients = 0;
+static int servers = 0, running_servers = 0, new_servers = 0, total_servers = 0;
+static float running_ops = 0;
+static int new_ops = 0;
+static float total_ops = 0;
+static int running_sops = 0, new_sops = 0, total_sops = 0;
+static int running_latency = 0, latency = 0;
+static int lat_ops = 0, b1_ops = 0, running_b1latency = 0, b1latency = 0;
+static uint64_t running_cbytes = 0, new_cbytes = 0, total_cbytes = 0;
+static uint64_t running_tbytes = 0, new_tbytes = 0, total_tbytes = 0;
+static int average_over = 5;
+static double hitrate = 0.4;
+static int hotset = 1000;
+static int keepalive = 4;
+static int keepalive_cons = 4;
+static int follow_arg = 0;
+static int follow = 0;
+static int follow_same_arg = 0;
+static int follow_same = 0;
+static char current_host[512];
+static int fullpage = 0;
+static int show_before = 0;
+static int show_headers = 0;
+static int server_keepalive = 4;
+static int version = 0;
+static int urls_mode = 0;
+static int pipeline = 1;
+static int hostrequest = 0;
+static int ftp = 0;
+static double ftp_mdtm_err_rate = 0.0;
+static int ftp_mdtm_rate = 0;
+static time_t ftp_mdtm_last_update = 0;
+static char ftp_mdtm_str[64];
+static int embed_url = 1;
+static double ims_rate = 0.5;
+static double client_abort_rate = 0.0;
+static double server_abort_rate = 0.0;
+static int compd_port = 0;
+static int compd_suite = 0;
+static int ka_cache_head[500];
+static int ka_cache_tail[500];
+static int n_ka_cache = 0;
+static char urls_file[256] = "";
+static FILE * urls_fp = NULL;
+static char urlsdump_file[256] = "";
+static FILE * urlsdump_fp = NULL;
+static int drand_seed = 0;
+static int docsize = -1;
+static int url_hash_entries = 1000000;
+static char url_hash_filename[256] = "";
+static int bandwidth_test = 0;
+static int bandwidth_test_to_go = 0;
+static uint64_t total_client_request_bytes = 0;
+static uint64_t total_proxy_request_bytes = 0;
+static uint64_t total_server_response_body_bytes = 0;
+static uint64_t total_server_response_header_bytes = 0;
+static uint64_t total_proxy_response_body_bytes = 0;
+static uint64_t total_proxy_response_header_bytes = 0;
+static ink_hrtime now = 0, start_time = 0;
+static int extra_headers = 0;
+static int alternates = 0;
+static int abort_retry_speed = 0;
+static int abort_retry_bytes = 0;
+static int abort_retry_secs = 5;
+static int client_rate = 0;
+static double reload_rate = 0;
+static int vary_user_agent = 0;
+static int server_content_type = 0;
+static int request_extension = 0;
+static int no_cache = 0;
+static double evo_rate = 0.0;
+static double zipf = 0.0;
+static int zipf_bucket_size = 1;
+
+static const ArgumentDescription argument_descriptions[] = {
+  {"proxy_port",'p',"Proxy Port","I",&proxy_port,"JTEST_PROXY_PORT",NULL},
+  {"proxy_host",'P',"Proxy Host","S80",&proxy_host,"JTEST_PROXY_HOST",NULL},
+  {"server_port",'s',"Server Port (0:auto select)","I",&server_port,
+   "JTEST_SERVER_PORT",NULL},
+  {"server_host",'S',"Server Host (null:localhost)","S80",
+   &local_host,"JTEST_SERVER_HOST",NULL},
+  {"server_speed",'r',"Server Bytes Per Second (0:unlimit)","I",
+   &server_speed,"JTEST_SERVER_SPEED",NULL},
+  {"server_delay", 'w', "Server Initial Delay (msec)", "I", &server_delay,
+   "JTEST_SERVER_INITIAL_DELAY", NULL},
+  {"clients",'c',"Clients","I",&nclients,"JTEST_CLIENTS",NULL},
+  {"client_speed",'R',"Client Bytes Per Second (0:unlimit)","I",
+   &client_speed,"JTEST_CLIENT_SPEED",NULL},
+  {"sbuffersize",'b',"Server Buffer Size","I",&sbuffersize,
+   "JTEST_SERVER_BUFSIZE", NULL},
+  {"cbuffersize",'B',"Client Buffer Size","I",&cbuffersize,
+   "JTEST_CLIENT_BUFSIZE", NULL},
+  {"average_over",'a',"Seconds to Average Over","I",&average_over,
+   "JTEST_AVERAGE_OVER", NULL},
+  {"hitrate",'z',"Hit Rate","D",&hitrate,"JTEST_HITRATE",NULL},
+  {"hotset",'Z',"Hotset Size","I",&hotset,"JTEST_HOTSET",NULL},
+  {"interval",'i',"Reporting Interval (seconds)","I",&interval,
+   "JTEST_INTERVAL",NULL},
+  {"keepalive",'k',"Keep-Alive Length","I",&keepalive,
+   "JTEST_KEEPALIVE",NULL},
+  {"keepalive_cons",'K',"# Keep-Alive Connections (0:unlimit)","I",
+   &keepalive_cons, "JTEST_KEEPALIVE_CONNECTIONS",NULL },
+  {"docsize", 'L', "Document Size (-1:varied)","I", &docsize,
+   "JTEST_DOCSIZE",NULL},
+  {"skeepalive",'j',"Server Keep-Alive (0:unlimit)","I",&server_keepalive,
+   "JTEST_SERVER_KEEPALIVE",NULL},
+  {"show_urls", 'x', "Show URLs before they are accessed","F", &show_before,
+   "JTEST_SHOW_URLS",NULL},
+  {"show_headers", 'X', "Show Headers","F", &show_headers,
+   "JTEST_SHOW_HEADERS",NULL},
+  {"ftp",'f',"FTP Requests","F",&ftp, "JTEST_FTP",NULL},
+  {"ftp_mdtm_err_rate", ' ', "FTP MDTM 550 Error Rate", "D",
+   &ftp_mdtm_err_rate, "JTEST_FTP_MDTM_ERR_RATE", NULL},
+  {"ftp_mdtm_rate", ' ', "FTP MDTM Update Rate (sec, 0:never)", "I",
+   &ftp_mdtm_rate, "JTEST_FTP_MDTM_RATE", NULL},
+  {"fullpage",'l',"Full Page (Images)","F",&fullpage,
+   "JTEST_FULLPAGE",NULL},
+  {"follow",'F',"Follow Links","F",&follow_arg, "JTEST_FOLLOW",NULL},
+  {"same_host",'J',"Only follow URLs on same host","F",&follow_same_arg,
+   "JTEST_FOLLOW_SAME",NULL},
+  {"test_time",'t',"run for N seconds (0:unlimited)","I", &test_time,
+   "TEST_TIME",NULL},
+  {"urls",'u',"URLs from File","S256", urls_file, "JTEST_URLS",NULL},
+  {"urlsdump", 'U', "URLs to File", "S256", urlsdump_file,
+   "JTEST_URLS_DUMP", NULL},
+  {"hostrequest",'H',"Host Request(1=yes,2=transparent)","I", &hostrequest, "JTEST_HOST_REQUEST",
+   NULL},
+  {"check_content",'C',"Check returned content", "F",
+   &check_content, "JTEST_CHECK_CONTENT", NULL},
+  {"nocheck_length",' ',"Don't check returned length", "F",
+   &nocheck_length, "JTEST_NOCHECK_LENGTH", NULL},
+  {"obey_redirects",'m',"Obey Redirects", "f", &obey_redirects,
+   "JTEST_OBEY_REDIRECTS", NULL},
+  {"embed URL",'M',"Embed URL in synth docs", "f",
+   &embed_url, "JTEST_EMBED_URL", NULL},
+  {"url_hash_entries",'q',"URL Hash Table Size (-1:use file size)",
+   "I", &url_hash_entries, "JTEST_URL_HASH_ENTRIES", NULL},
+  {"url_hash_filename",'Q',"URL Hash Table Filename", "S256",
+   url_hash_filename, "JTEST_URL_HASH_FILENAME", NULL},
+  {"only_clients",'y',"Only Clients","F",&only_clients,
+   "JTEST_ONLY_CLIENTS",NULL},
+  {"only_server",'Y',"Only Server","F",&only_server,"JTEST_ONLY_SERVER",NULL},
+  {"bandwidth_test",'A',"Bandwidth Test","I",&bandwidth_test,
+   "JTEST_BANDWIDTH_TEST",NULL},
+  {"drop_after_CL",'T',"Drop after Content-Length","F",
+   &drop_after_CL, "JTEST_DROP",NULL},
+  {"version",'V',"Version","F",&version,"JTEST_VERSION",NULL},
+  {"verbose",'v',"Verbose Flag","F",&verbose,"JTEST_VERBOSE",NULL},
+  {"verbose_errors",'E',"Verbose Errors Flag","f",&verbose_errors,
+   "JTEST_VERBOSE_ERRORS",NULL},
+  {"drand",'D',"Random Number Seed","I",&drand_seed,"JTEST_DRAND",NULL},
+  {"ims_rate",'I',"IMS Not-Changed Rate","D",&ims_rate, "JTEST_IMS_RATE",NULL},
+  {"client_abort_rate",'g',"Client Abort Rate","D",&client_abort_rate,
+   "JTEST_CLIENT_ABORT_RATE",NULL},
+  {"server_abort_rate",'G',"Server Abort Rate","D",&server_abort_rate,
+   "JTEST_SERVER_ABORT_RATE",NULL},
+  {"extra_headers",'n',"Number of Extra Headers","I",&extra_headers,
+   "JTEST_EXTRA_HEADERS",NULL},
+  {"alternates",'N',"Number of Alternates","I",&alternates,
+   "JTEST_ALTERNATES",NULL},
+  {"client_rate", 'e', "Clients Per Sec", "I", &client_rate,
+   "JTEST_CLIENT_RATE",NULL},
+  {"abort_retry_speed", 'o', "Abort/Retry Speed", "I",
+   &abort_retry_speed, "JTEST_ABORT_RETRY_SPEED",NULL},
+  {"abort_retry_bytes", ' ', "Abort/Retry Threshhold (bytes)", "I",
+   &abort_retry_bytes, "JTEST_ABORT_RETRY_THRESHHOLD_BYTES",NULL},
+  {"abort_retry_secs", ' ', "Abort/Retry Threshhold (secs)", "I",
+   &abort_retry_secs, "JTEST_ABORT_RETRY_THRESHHOLD_SECS",NULL},
+  {"reload_rate", 'W', "Reload Rate", "D",
+   &reload_rate, "JTEST_RELOAD_RATE",NULL},
+  {"compd_port",'O',"Compd port","I",&compd_port, "JTEST_COMPD_PORT",NULL},
+  {"compd_suite",'1',"Compd Suite","F",&compd_suite, "JTEST_COMPD_SUITE",NULL},
+  {"vary_user_agent",'2',"Vary on User-Agent (use w/ alternates)","I",
+   &vary_user_agent,"JTEST_VARY_ON_USER_AGENT",NULL},
+  {"content_type",'3',"Server Content-Type (1 html, 2 jpeg)","I",
+   &server_content_type,"JTEST_CONTENT_TYPE",NULL},
+  {"request_extension",'4',"Request Extn (1\".html\" 2\".jpeg\" 3\"/\")","I",
+   &request_extension,"JTEST_REQUEST_EXTENSION",NULL},
+  {"no_cache",'5',"Send Server no-cache","I",&no_cache,"JTEST_NO_CACHE",NULL},
+  {"zipf_bucket",'7',"Bucket size (of 1M buckets) for Zipf","I",
+   &zipf_bucket_size,"JTEST_ZIPF_BUCKET_SIZE",NULL},
+  {"zipf",'8',"Use a Zipf distribution with this alpha (say 1.2)","D",
+   &zipf,"JTEST_ZIPF",NULL},
+  {"evo_rate",'9',"Evolving Hotset Rate (evolutions/hour)","D",
+   &evo_rate,"JTEST_EVOLVING_HOTSET_RATE",NULL},
+  {"debug",'d',"Debug Flag","F",&debug,"JTEST_DEBUG",NULL},
+  {"help",'h',"Help",NULL,NULL,NULL,jtest_usage}
+};
+int n_argument_descriptions = countof(argument_descriptions);
+
+struct FD {
+  int fd;
+  poll_cb read_cb;
+  poll_cb write_cb;
+  ink_hrtime start;
+  ink_hrtime active;
+  ink_hrtime ready;
+
+  double doc;
+  int doc_length;
+  struct sockaddr_in name;
+
+  int state;             // request parsing state
+  int req_pos;           // request read position
+  char * base_url;
+  char * req_header;
+  char * response;
+  char * response_header;
+  int length;
+  int response_length;
+  int response_remaining;
+  int keepalive;
+  int next;
+  int nalternate;
+  unsigned int ip;
+  unsigned int binary:1;
+  unsigned int ims:1;
+  unsigned int drop_after_CL:1;
+  unsigned int client_abort:1;
+  unsigned int jg_compressed:1;
+  int * count;
+  int bytes;
+  int ftp_data_fd;
+  FTP_MODE ftp_mode;
+  unsigned int ftp_peer_addr;
+  unsigned short ftp_peer_port;
+
+  void reset() {
+    next = 0;
+    fd = -1;
+    read_cb = NULL;
+    write_cb = NULL;
+    state = 0;
+    start = 0;
+    active = 0;
+    ready = 0;
+    req_pos = 0;
+    length = 0;
+    if (!urls_mode)
+      response = NULL;
+    response_header[0] = 0;
+    response_length = 0;
+    response_remaining = 0;
+    count = NULL;
+    bytes = 0;
+    doc = 0.0;
+    doc_length = 0;
+    ims = 0;
+    drop_after_CL = ::drop_after_CL;
+    client_abort = 0;
+    jg_compressed = 0;
+    ftp_mode = FTP_NULL;
+    ftp_peer_addr = 0;
+    ftp_peer_port = 0;
+  }
+
+  void close();
+  FD() {
+    req_header = 0; base_url = 0; keepalive = 0;
+    response_header = 0; ftp_data_fd = 0;
+    reset();
+  }
+};
+
+FD *fd = NULL;
+
+void FD::close() {
+  if (verbose)
+    printf("close: %d\n", fd);
+  ::close(fd);
+  if (is_done())
+    done();
+  keepalive = 0;
+  ip = 0;
+  if (count) (*count)--;
+  if (count == &clients)
+    current_clients--;
+  reset();
+  if (urls_mode) undefer_url();
+  ftp_data_fd = 0;
+}
+
+#define MAX_FILE_ARGUMENTS 100
+
+typedef struct {
+  char sche[MAX_URL_LEN + 1];
+  char host[MAX_URL_LEN + 1];
+  char port[MAX_URL_LEN + 1];
+  char path[MAX_URL_LEN + 1];
+  char frag[MAX_URL_LEN + 1];
+  char quer[MAX_URL_LEN + 1];
+  char para[MAX_URL_LEN + 1];
+
+  int sche_exists;
+  int host_exists;
+  int port_exists;
+  int path_exists;
+  int frag_exists;
+  int quer_exists;
+  int para_exists;
+
+  int rel_url;
+  int leading_slash;
+  int is_path_name;
+} InkWebURLComponents;
+
+static  int ink_web_remove_dots(
+  char *src, char *dest, int *leadingslash, int max_dest_len);
+
+static int ink_web_unescapify_string(
+  char *dest_in, char *src_in, int max_dest_len);
+
+static int ink_web_escapify_string(char *dest_in, char *src_in, int max_dest_len);
+
+static void ink_web_decompose_url(
+  const char *src_url,
+  char *sche, char *host, char *port, char *path,
+  char *frag, char *quer, char *para,
+  int *real_sche_exists, int *real_host_exists,
+  int *real_port_exists, int *real_path_exists,
+  int *real_frag_exists, int *real_quer_exists,
+  int *real_para_exists,
+  int *real_relative_url, int *real_leading_slash);
+
+static void ink_web_canonicalize_url(const char *base_url, const char *emb_url,
+                                     char *dest_url, int max_dest_url_len);
+
+static void ink_web_decompose_url_into_structure(const char *url,
+                                                 InkWebURLComponents *c);
+
+static void remove_last_seg(char *src, char *dest)
+{
+  char *ptr;
+  for (ptr = src + strlen(src) - 1; ptr >= src; ptr--)
+    if (*ptr == '/') break;
+  while (src <= ptr) *dest++ = *src++;
+  *dest = '\0';
+}
+
+static inline void remove_multiple_slash(char *src, char *dest)
+{
+  char *ptr=NULL;
+
+  for (ptr = src; *ptr;) {
+      *(dest++) = *ptr;
+      if (*ptr == '/')  {
+        while ((*ptr== '/') && *ptr) {
+          ptr++;
+        }
+      } else {
+        ptr++;
+      }
+    }
+  *dest = '\0';
+}
+
+static inline void append_string(char *dest, const char *src, int *offset_ptr,
+                                 int max_len)
+{
+  int num = strlen(src);
+  if (*offset_ptr + num > max_len)
+    num = max_len-*offset_ptr;
+  strncpy(dest+*offset_ptr, src, num+1);
+  (*offset_ptr) += num;
+}
+
+// End Library functions
+
+static void show_version() {
+  char b[] = VERSION_NUM;
+  char * v = strchr(b,':');
+  v += 2;
+  *strchr(v,'$') = 0;
+  printf(JTEST_VERSION, v);
+}
+
+static void jtest_usage(const ArgumentDescription * argument_descriptions,
+                 unsigned n_argument_descriptions, const char * arg)
+{
+  show_version();
+  usage(argument_descriptions, n_argument_descriptions, arg);
+}
+
+static void panic(const char * s) {
+  fputs(s, stderr);
+  exit(1);
+}
+
+static void panic_perror(const char * s) {
+  perror(s);
+  exit(1);
+}
+
+static int max_limit_fd() {
+  struct rlimit rl;
+  if (getrlimit(RLIMIT_NOFILE,&rl) >= 0) {
+#ifdef OPEN_MAX
+    // Darwin
+    rl.rlim_cur = MIN(OPEN_MAX, rl.rlim_max);
+#else
+    rl.rlim_cur = rl.rlim_max;
+#endif
+    if (setrlimit(RLIMIT_NOFILE,&rl) >= 0) {
+      if (getrlimit(RLIMIT_NOFILE,&rl) >= 0) {
+        return rl.rlim_cur;
+      }
+    }
+  }
+  panic_perror("couldn't set RLIMIT_NOFILE\n");
+  return -1;
+}
+
+static int read_ready(int fd) {
+  struct pollfd p;
+  p.events = POLLIN;
+  p.fd = fd;
+  int r = poll(&p,1,0);
+  if (r<=0) return r;
+  if (p.revents & (POLLERR|POLLNVAL)) return -1;
+  if (p.revents & (POLLIN|POLLHUP)) return 1;
+  return 0;
+}
+
+static void poll_init(int sock) {
+  if (!fd[sock].req_header)
+    fd[sock].req_header = (char*)malloc(HEADER_SIZE * pipeline);
+  if (!fd[sock].response_header)
+    fd[sock].response_header = (char*)malloc(HEADER_SIZE);
+  if (!fd[sock].base_url)
+    fd[sock].base_url = (char*)malloc(HEADER_SIZE);
+  fd[sock].reset();
+}
+
+static void poll_set(int sock, poll_cb read_cb, poll_cb write_cb = NULL) {
+  if (verbose) printf("adding poll %d\n", sock);
+  fd[sock].fd = sock;
+  fd[sock].read_cb = read_cb;
+  fd[sock].write_cb = write_cb;
+  if (last_fd < sock)
+    last_fd = sock;
+}
+
+static void poll_init_set(int sock, poll_cb read_cb, poll_cb write_cb = NULL) {
+  poll_init(sock);
+  poll_set(sock, read_cb, write_cb);
+}
+
+static int fast(int sock, int speed, int d) {
+  if (!speed) return 0;
+  int64_t t = now - fd[sock].start + 1;
+  int target = (int)(((t / HRTIME_MSECOND) * speed) / 1000);
+  int delta = d - target;
+  if (delta > 0) {
+    int mwait = (delta * 1000) / speed;
+    fd[sock].ready = now + (mwait * HRTIME_MSECOND);
+    return 1;
+  } else
+    fd[sock].ready = now;
+  return 0;
+}
+
+// Return the number of milliseconds elapsed since the start of the request.
+static ink_hrtime elapsed_from_start(int sock) {
+  ink_hrtime now = ink_get_hrtime_internal();
+  return ink_hrtime_diff_msec(now, fd[sock].start);
+}
+
+static int faster_than(int sock, int speed, int d) {
+  if (!speed) return 1;
+  int64_t t = now - fd[sock].start + 1;
+  int target = (int)(((t / HRTIME_MSECOND) * speed) / 1000);
+  int delta = d - target;
+  if (delta > 0)
+    return 1;
+  return 0;
+}
+
+static void get_path_from_req(char * buf,char ** purl_start, char ** purl_end)
+{
+  char * url_start = buf;
+  char * url_end = NULL;
+  if (!strncasecmp(url_start, "GET ", sizeof("GET ")-1)) {
+    url_start += sizeof("GET ")-1;
+    url_end = (char*)memchr(url_start,' ',70);
+  } else
+    url_end = (char*)memchr(url_start,0,70);
+  if (!url_end) panic("malformed request\n");
+  if (url_end - url_start > 10)
+    if (!strncasecmp(url_start, "http://", sizeof("http://")-1)) {
+      url_start += sizeof("http://")-1;
+      url_start = (char*)memchr(url_start,'/',70);
+    }
+  *purl_start = url_start;
+  *purl_end = url_end;
+}
+
+static int send_response (int sock)
+{
+  int err = 0, towrite;
+
+  if (fd[sock].req_pos >= 0) {
+    char header[1024], *url_end = NULL, *url_start = NULL;
+    int url_len = 0;
+    const char * content_type;
+    switch (server_content_type) {
+    case 1: content_type = "text/html"; break;
+    case 2: content_type = "image/jpeg"; break;
+    default:
+      content_type = ((compd_suite || alternates) ? "image/jpeg" : "text/html");
+      if (only_server && strstr(fd[sock].req_header, "Cookie:")) {
+        content_type = "image/jpeg";
+      }
+    }
+    if (!ftp && embed_url && fd[sock].response_length > 16) {
+      get_path_from_req(fd[sock].req_header, &url_start, &url_end);
+      *url_end = 0;
+      url_len = url_end - url_start;
+    }
+    int print_len = 0;
+    if (!ftp) {
+      if (fd[sock].ims) {
+        print_len = sprintf(
+          header,"HTTP/1.0 304 Not-Modified\r\n"
+          "Content-Type: %s\r\n"
+          "Last-Modified: Mon, 05 Oct 2010 01:00:00 GMT\r\n"
+          "%s"
+          "\r\n",
+          content_type,
+          fd[sock].keepalive>0?"Connection: Keep-Alive\r\n":"");
+        url_len = 0;
+      } else
+        print_len = sprintf(
+          header,"HTTP/1.0 200 OK\r\n"
+          "Content-Type: %s\r\n"
+          "Cache-Control: max-age=630720000\r\n"
+          "Last-Modified: Mon, 05 Oct 2010 01:00:00 GMT\r\n"
+          "%s"
+          "Content-Length: %d\r\n"
+          "%s"
+          "\r\n%s",
+          content_type,
+          fd[sock].keepalive>0?"Connection: Keep-Alive\r\n":"",
+          fd[sock].response_length,
+          no_cache?"Pragma: no-cache\r\nCache-Control: no-cache\r\n":"",
+          url_start ? url_start : "");
+    } else
+      url_len = print_len =
+        sprintf(header, "ftp://%s:%d/%12.10f/%d",
+                local_host, server_port,
+                fd[sock].doc, fd[sock].length);
+    if (show_headers) printf("Response to Proxy: {\n%s}\n", header);
+    int len = print_len - fd[sock].req_pos;
+    ink_assert(len>0);
+    do {
+      err = write(sock, header + fd[sock].req_pos, len);
+    } while ((err == -1) && (errno == EINTR));
+    if (err <= 0) {
+      if (!err) return -1;
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      return -1;
+    }
+    if (verbose) printf("wrote %d %d\n", sock, err);
+    new_tbytes += err;
+    fd[sock].req_pos += err;
+    fd[sock].bytes += err;
+    if (fd[sock].req_pos >= len)
+      fd[sock].req_pos = -1;
+    else
+      return 0;
+    fd[sock].response += url_len;
+    fd[sock].length -= url_len;
+    total_server_response_header_bytes += print_len - url_len;
+    total_server_response_body_bytes += url_len;
+  }
+
+  /* then the response */
+  towrite = server_speed?server_speed:MAX_RESPONSE_LENGTH;
+  if (fd[sock].length < towrite)
+    towrite = fd[sock].length;
+  if (towrite > 0) {
+    if (fast(sock,server_speed,fd[sock].bytes))
+      return 0;
+    do {
+      err = write (sock, fd[sock].response, towrite);
+    } while ((err == -1) && (errno == EINTR));
+    if (err < 0) {
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      fprintf(stderr,"write errno %d length %d sock %d\n",errno,towrite,sock);
+      errors++;
+      return -1;
+    }
+    if (verbose) printf("wrote %d %d\n", sock, err);
+
+    new_tbytes += err;
+    total_server_response_body_bytes += err;
+    fd[sock].response += err;
+    fd[sock].length -= err;
+    fd[sock].bytes += err;
+  }
+
+  if (fast(sock,server_speed,fd[sock].bytes))
+    return 0;
+  if (fd[sock].length <= 0 || !err) {
+    if (fd[sock].response)
+      new_sops++;
+    if (verbose) printf("write %d done\n", sock);
+    if (fd[sock].keepalive > 0 && !ftp) {
+      poll_init_set(sock, read_request);
+      fd[sock].start = now;
+      fd[sock].ready = now + server_delay * HRTIME_MSECOND;
+      return 0;
+    }
+    return 1;
+  }
+
+  return 0;
+}
+
+static char * strncasestr (char *s, const char * find, int len) {
+  int findlen = strlen(find);
+  char * e = s + len;
+  while (1) {
+    char * x = (char*)memchr(s,*find,e - s);
+    if (!x) {
+      if (ParseRules::is_upalpha(*find))
+        x = (char*)memchr(s,ParseRules::ink_tolower(*find),e - s);
+      else
+        x = (char*)memchr(s,ParseRules::ink_toupper(*find),e - s);
+      if (!x) break;
+    }
+    if (!strncasecmp(find, x, findlen)) return x;
+    s = x + 1;
+  }
+  return NULL;
+}
+
+static char * check_keepalive(char * r, int length) {
+  char * ka = strncasestr(r,"Connection:", length);
+  if (ka) {
+    int l = length - (ka - r);
+    char * e = (char*)memchr(ka,'\n',l);
+    if (!e) e = (char*)memchr(ka,'\r',l);
+    if (strncasestr(ka,"close",e-ka))
+      return NULL;
+  }
+  return ka;
+}
+
+static int check_alt(char * r, int length) {
+  char * s = strncasestr(r, "Cookie:", length);
+  if (!s) {
+    s = strncasestr(r, "User-Agent:", length);
+    if (s) s += sizeof("User-Agent:");
+  } else
+    s += sizeof("Cookie:");
+  if (s) {
+    int l = length - (s - r);
+    char * e = (char*)memchr(s, '\n', l);
+    if (!e) e = (char*)memchr(s, '\r', l);
+    if (!(s = strncasestr(s, "jtest", e - s)))
+      return 0;
+    s = (char*)memchr(s, '-', l);
+    if (!s)
+      return 0;
+    s = (char*)memchr(s + 1, '-', l);
+    if (!s)
+      return 0;
+    return ink_atoi(s + 1);
+  }
+  return 0;
+}
+
+static void make_response(int sock, int code) {
+  fd[sock].response = fd[sock].req_header;
+  fd[sock].length = sprintf( fd[sock].req_header, "%d\r\n", code);
+  fd[sock].req_pos = 0;
+  fd[sock].response_length = strlen(fd[sock].req_header);
+  poll_set(sock, NULL, write_ftp_response);
+}
+
+static void make_long_response(int sock) {
+  fd[sock].response = fd[sock].req_header;
+  fd[sock].req_pos = 0;
+  fd[sock].response_length = strlen(fd[sock].req_header);
+  poll_set(sock, NULL, write_ftp_response);
+}
+
+static int send_ftp_data_when_ready(int sock) {
+  if (fd[sock].state == STATE_FTP_DATA_READY && fd[sock].doc_length) {
+    fd[sock].response = fd[sock].req_header;
+    fd[sock].response_length = fd[sock].length = fd[sock].doc_length;
+    if (verbose) printf("ftp data %d >-< %d\n", sock, fd[sock].ftp_data_fd);
+    fd[sock].response = response_buffer + fd[sock].doc_length % 256;
+    fd[sock].req_pos = 0;
+    poll_set(sock, NULL, send_response);
+  }
+  return 0;
+}
+
+static int send_ftp_data(int sock, char * start /*, char * end */) {
+  int data_fd = fd[sock].ftp_data_fd;
+  if (sscanf(start,"%d",&fd[data_fd].doc_length) != 1)
+    return -1;
+  fd[data_fd].doc = fd[sock].doc;
+  send_ftp_data_when_ready(data_fd);
+  return 0;
+}
+
+static int read_request(int sock) {
+  if (verbose) printf("read_request %d\n", sock);
+  int err = 0;
+  int i;
+
+  int maxleft = HEADER_SIZE - fd[sock].req_pos - 1;
+
+  do {
+    err = read (sock, &fd[sock].req_header[fd[sock].req_pos],
+                maxleft);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0) {
+    if (errno == EAGAIN || errno == ENOTCONN) return 0;
+    if (fd[sock].req_pos || errno != ECONNRESET)
+      perror ("read");
+    return -1;
+  } else if (err == 0) {
+    if (verbose) printf("eof\n");
+    return -1;
+  } else {
+    if (verbose) printf("read %d got %d\n", sock, err);
+    total_proxy_request_bytes += err;
+    new_tbytes += err;
+    fd[sock].req_pos += err;
+    fd[sock].req_header[fd[sock].req_pos] = 0;
+    char *buffer = fd[sock].req_header;
+    for (i = fd[sock].req_pos - err;
+         i < fd[sock].req_pos; i++)
+    {
+      switch (fd[sock].state) {
+        case 0:
+          if (buffer[i] == '\r')
+            fd[sock].state = 1;
+          else if (buffer[i] == '\n')
+            fd[sock].state = 2;
+          break;
+        case 1:
+          if (buffer[i] == '\n')
+            fd[sock].state = 2;
+          else
+            fd[sock].state = 0;
+          break;
+        case 2:
+          if (buffer[i] == '\r')
+            fd[sock].state = 3;
+          else if (buffer[i] == '\n') {
+            fd[sock].state = 3;
+            goto L3;
+          } else
+            fd[sock].state = 0;
+          break;
+      L3:
+        case 3:
+          if (buffer[i] == '\n') {
+            if (show_headers)
+              printf("Request from Proxy: {\n%s}\n",buffer);
+            char host[80];
+            int port, length;
+            float r;
+            if (sscanf(buffer,"GET http://%[^:]:%d/%f/%d",
+                       host,&port,&r,&length) == 4) {
+            } else if (sscanf(buffer,"GET /%f/%d",&r,&length) == 2) {
+            } else {
+              if (verbose) printf("misscan: %s\n",buffer);
+              fd[sock].close();
+              return 0;
+            }
+            if (verbose)
+              printf("read_request %d got request %d\n", sock, length);
+            char * ims = strncasestr(buffer,"If-Modified-Since:", i);
+            if (drand48() > ims_rate) ims = NULL;
+            fd[sock].ims = ims?1:0;
+            if (!ims) {
+              fd[sock].response_length = fd[sock].length = length;
+              fd[sock].nalternate = check_alt(fd[sock].req_header,
+                                              strlen(fd[sock].req_header));
+              fd[sock].response = response_buffer + length % 256 +
+                fd[sock].nalternate;
+            } else {
+              fd[sock].nalternate = 0;
+              if (verbose)
+                printf("sending IMS 304: Not-Modified\n");
+              fd[sock].response = NULL;
+              fd[sock].response_length = fd[sock].length = 0;
+            }
+            fd[sock].req_pos = 0;
+            if (!check_keepalive(fd[sock].req_header,
+                                 strlen(fd[sock].req_header)))
+              fd[sock].keepalive = 0;
+            else
+              fd[sock].keepalive--;
+            if (fd[sock].length && drand48() < server_abort_rate) {
+              fd[sock].length = (int)(drand48() * (fd[sock].length -1));
+              fd[sock].keepalive = 0;
+            }
+            poll_set(sock,NULL,send_response);
+            return 0;
+          } else
+            fd[sock].state = 0;
+          break;
+      }
+    }
+  }
+  return 0;
+}
+
+static int send_compd_response(int sock) {
+  int err = 0;
+
+  struct {
+    unsigned int code;
+    unsigned int len;
+  } compd_header;
+  if (fd[sock].req_pos < (int)sizeof(compd_header)) {
+    compd_header.code = 0;
+    compd_header.len = htonl((fd[sock].length * 2) / 3);
+    do {
+      err = write(sock, (char*)&compd_header + fd[sock].req_pos,
+                  sizeof(compd_header) - fd[sock].req_pos);
+    } while ((err == -1) && (errno == EINTR));
+    if (err <= 0) {
+      if (!err) {
+        if (verbose_errors) printf("write %d closed early\n", sock);
+        goto Lerror;
+      }
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      perror("write");
+      goto Lerror;
+    }
+    if (verbose) printf("write %d %d\n", sock, err);
+
+    new_tbytes += err;
+    fd[sock].req_pos += err;
+    fd[sock].bytes += err;
+    fd[sock].response = response_buffer + (((fd[sock].length * 2) / 3) % 256);
+  }
+
+  if (fd[sock].req_pos < ((fd[sock].length * 2) / 3) + (int)sizeof(compd_header)) {
+    int towrite = cbuffersize;
+    int desired = ((fd[sock].length * 2) / 3) + sizeof (compd_header) - fd[sock].req_pos;
+    if (towrite > desired) {
+      towrite = desired;
+    }
+    if (fast(sock,client_speed,fd[sock].bytes)) return 0;
+    do {
+      err = write (sock, fd[sock].response + fd[sock].req_pos - sizeof(compd_header) , towrite);
+    } while ((err == -1) && (errno == EINTR));
+    if (err < 0) {
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      fprintf(stderr,"write errno %d length %d sock %d\n",errno,towrite,sock);
+      errors++;
+      return -1;
+    }
+    if (verbose) printf("wrote %d %d\n", sock, err);
+
+    new_tbytes += err;
+    total_server_response_body_bytes += err;
+    fd[sock].req_pos += err;
+    fd[sock].bytes += err;
+  }
+
+  if (fd[sock].req_pos >= ((fd[sock].length * 2) / 3) + 4)
+    return -1;
+
+  return 0;
+Lerror:
+  errors++;
+  return 1;
+}
+
+static int read_compd_request(int sock) {
+  if (verbose) printf("read_compd_request %d\n", sock);
+  int err = 0;
+
+  if (fd[sock].req_pos < 4) {
+    int maxleft = HEADER_SIZE - fd[sock].req_pos - 1;
+    do {
+      err = read (sock, &fd[sock].req_header[fd[sock].req_pos],
+                  maxleft);
+    } while ((err < 0) && (errno == EINTR));
+
+    if (err < 0) {
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      perror ("read");
+      return -1;
+    } else if (err == 0) {
+      if (verbose) printf("eof\n");
+      return -1;
+    } else {
+      if (verbose) printf("read %d got %d\n", sock, err);
+      total_proxy_request_bytes += err;
+      new_tbytes += err;
+      fd[sock].req_pos += err;
+      if (fd[sock].req_pos < 4)
+        return 0;
+      fd[sock].length = ntohl(*(unsigned int*)fd[sock].req_header);
+    }
+  }
+
+  if (fd[sock].req_pos >= fd[sock].length + 4)
+    goto Lcont;
+
+  {
+    char buf[MAX_BUFSIZE];
+    int toread = cbuffersize;
+    if (fast(sock,client_speed,fd[sock].bytes)) return 0;
+    do {
+      err = read(sock, buf, toread);
+    } while ((err == -1) && (errno == EINTR));
+    if (err < 0) {
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      if (errno == ECONNRESET) {
+        if (verbose || verbose_errors)
+          perror ("read");
+        errors++;
+        return -1;
+      }
+      panic_perror("read");
+    }
+    if (!err) {
+      if (verbose || verbose_errors)
+        perror ("read");
+      errors++;
+      return -1;
+    }
+    total_proxy_request_bytes += err;
+    new_tbytes += err;
+    fd[sock].req_pos += err;
+  }
+
+  if (fd[sock].req_pos >= fd[sock].length + 4)
+    goto Lcont;
+
+  return 0;
+
+Lcont:
+  fd[sock].req_pos = 0;
+  fd[sock].keepalive = 0;
+  poll_set(sock,NULL,send_compd_response);
+  return 0;
+}
+
+static int read_ftp_request(int sock) {
+  if (verbose) printf("read_ftp_request %d\n", sock);
+  int err = 0;
+  int i;
+
+  int maxleft = HEADER_SIZE - fd[sock].req_pos - 1;
+
+  do {
+    err = read (sock, &fd[sock].req_header[fd[sock].req_pos],
+                maxleft);
+  } while ((err < 0) && (errno == EINTR));
+
+  if (err < 0) {
+    if (errno == EAGAIN || errno == ENOTCONN) return 0;
+    perror ("read");
+    return -1;
+  } else if (err == 0) {
+    if (verbose) printf("eof\n");
+    return -1;
+  } else {
+    if (verbose) printf("read %d got %d\n", sock, err);
+    new_tbytes += err;
+    fd[sock].req_pos += err;
+    fd[sock].req_header[fd[sock].req_pos] = 0;
+    char *buffer = fd[sock].req_header, *n;
+    int res = 0;
+    buffer[fd[sock].req_pos] = 0;
+    if (verbose) printf("buffer [%s]\n", buffer);
+#define STREQ(_x,_s) (!strncasecmp(_x,_s,sizeof(_s)-1))
+    if (STREQ(buffer,"USER")) {
+        res = 331; goto Lhere;
+    } else if (STREQ(buffer,"PASS")) {
+        res = 230; goto Lhere;
+    } else if (STREQ(buffer,"CWD")) {
+      // TS used to send "CWD 1.2110000000..."
+      // TS now sends "CWD /1.2110000000^M\n", so skip 5 instead of 4
+      fd[sock].doc = (buffer[4]=='/') ? atof(buffer + 5) : atof(buffer + 4);
+      res = 250; goto Lhere;
+    } else if (STREQ(buffer,"TYPE")) {
+        res = 200;
+    Lhere:
+        n = (char*)memchr(buffer,'\n',fd[sock].req_pos);
+        if (!n) return 0;
+        make_response(sock,res);
+        return 0;
+    } else if (STREQ(buffer,"SIZE")) {
+        fd[sock].length =
+          sprintf(fd[sock].req_header, "213 %d\r\n", atoi(buffer + 5));
+        make_long_response(sock);
+        return 0;
+    } else if (STREQ(buffer,"MDTM")) {
+      double err_rand = 1.0;
+      if (ftp_mdtm_err_rate != 0.0) err_rand = drand48();
+      if (err_rand < ftp_mdtm_err_rate) {
+        fd[sock].length =
+          sprintf (fd[sock].req_header, "550 mdtm file not found\r\n");
+      } else {
+        if (ftp_mdtm_rate == 0) {
+          fd[sock].length =
+            sprintf (fd[sock].req_header, "213 19900615100045\r\n");
+        } else {
+          time_t mdtm_now;
+          time(&mdtm_now);
+          if (mdtm_now-ftp_mdtm_last_update > ftp_mdtm_rate) {
+            struct tm *mdtm_tm;
+            ftp_mdtm_last_update = mdtm_now;
+            mdtm_tm = localtime(&ftp_mdtm_last_update);
+            sprintf(ftp_mdtm_str, "213 %.4d%.2d%.2d%.2d%.2d%.2d",
+                    mdtm_tm->tm_year + 1900,
+                    mdtm_tm->tm_mon + 1,
+                    mdtm_tm->tm_mday,
+                    mdtm_tm->tm_hour,
+                    mdtm_tm->tm_min,
+                    mdtm_tm->tm_sec);
+          }
+          fd[sock].length =
+            sprintf (fd[sock].req_header, "%s\r\n", ftp_mdtm_str);
+        }
+      }
+      make_long_response(sock);
+      return 0;
+    } else if (STREQ(buffer,"PASV")) {
+        n = (char*)memchr(buffer,'\n',fd[sock].req_pos);
+        if (!n) return 0;
+        if ((fd[sock].ftp_data_fd = open_server(0, accept_ftp_data)) < 0)
+          panic("could not open ftp data PASV accept port\n");
+        fd[fd[sock].ftp_data_fd].ftp_data_fd = sock;
+        if (verbose) printf("ftp PASV %d <-> %d\n", sock,fd[sock].ftp_data_fd);
+        unsigned short p = fd[fd[sock].ftp_data_fd].name.sin_port;
+        fd[sock].length =
+          sprintf(fd[sock].req_header, "227 (%u,%u,%u,%u,%u,%u)\r\n",
+                  ((unsigned char*)&local_addr)[0],
+                  ((unsigned char*)&local_addr)[1],
+                  ((unsigned char*)&local_addr)[2],
+                  ((unsigned char*)&local_addr)[3],
+                  ((unsigned char*)&p)[0],
+                  ((unsigned char*)&p)[1]);
+        if (verbose) puts(fd[sock].req_header);
+        make_long_response(sock);
+        fd[sock].ftp_mode = FTP_PASV;
+        return 0;
+    } else if (STREQ(buffer,"PORT")) {
+        // watch out for an endian problems !!!
+        char *start, *stop;
+        for (start = buffer; !ParseRules::is_digit(*start); start++);
+        for (stop = start; *stop != ','; stop++);
+        for (i = 0; i < 4; i++) {
+          ((unsigned char*)&(fd[sock].ftp_peer_addr))[i] =
+            strtol(start, &stop, 10);
+          for (start = ++stop; *stop != ','; stop++);
+        }
+        ((unsigned char*)&(fd[sock].ftp_peer_port))[0] =
+          strtol(start, &stop, 10);
+        start = ++stop;
+        ((unsigned char*)&(fd[sock].ftp_peer_port))[1] =
+          strtol(start, NULL, 10);
+        fd[sock].length =
+          sprintf(fd[sock].req_header, "200 Okay\r\n");
+        if (verbose) puts(fd[sock].req_header);
+        make_long_response(sock);
+        fd[sock].ftp_mode = FTP_PORT;
+        return 0;
+    } else if (STREQ(buffer,"RETR")) {
+        if (fd[sock].ftp_mode == FTP_NULL) {
+          // default to PORT ftp
+          struct sockaddr_in ftp_peer;
+          int ftp_peer_addr_len = sizeof(ftp_peer);
+          if (getpeername(sock, (struct sockaddr*)&ftp_peer,
+#if 0
+                          &ftp_peer_addr_len
+#else
+                          (socklen_t*)&ftp_peer_addr_len
+#endif
+            ) < 0) {
+            perror("getsockname");
+            exit(EXIT_FAILURE);
+          }
+          fd[sock].ftp_peer_addr = ftp_peer.sin_addr.s_addr;
+          fd[sock].ftp_peer_port = ftp_peer.sin_port;
+          fd[sock].ftp_mode = FTP_PORT;
+        }
+        if (fd[sock].ftp_mode == FTP_PORT) {
+          if ((fd[sock].ftp_data_fd =
+               make_client(fd[sock].ftp_peer_addr,fd[sock].ftp_peer_port)) < 0)
+            panic("could not open ftp PORT data connection to client\n");
+          fd[fd[sock].ftp_data_fd].ftp_data_fd = sock;
+          fd[fd[sock].ftp_data_fd].state = STATE_FTP_DATA_READY;
+          if (verbose)
+            printf("ftp PORT %d <-> %d\n", sock, fd[sock].ftp_data_fd);
+        }
+        n = (char*)memchr(buffer,'\n',fd[sock].req_pos);
+        if (!n) return 0;
+        if (send_ftp_data(sock, buffer+5 /*, n */)<0) {
+          errors++;
+          *n = 0;
+          if (verbose)
+            printf("badly formed ftp request: %s\n", buffer);
+          return 1;
+        }
+        fd[sock].response = fd[sock].req_header;
+        fd[sock].length = sprintf( fd[sock].req_header, "150 %d bytes\r\n",
+                                   fd[fd[sock].ftp_data_fd].length);
+        fd[sock].req_pos = 0;
+        fd[sock].response_length = strlen(fd[sock].req_header);
+        poll_set(sock, NULL, write_ftp_response);
+        buffer = n+1;
+        return 0;
+    } else {
+      if (verbose || verbose_errors) printf("ftp junk : %s\n", buffer);
+      fd[sock].req_pos = 0;
+      return 0;
+    }
+  }
+}
+
+static int accept_sock(int sock) {
+  struct sockaddr_in clientname;
+  int size = sizeof (clientname);
+  int new_fd = 0;
+  do {
+    new_fd = accept(sock, (struct sockaddr *) &clientname,
+#if 0
+                    &size
+#else
+                    (socklen_t*)&size
+#endif
+      );
+    if (new_fd < 0) {
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      if (errno == EINTR || errno == ECONNABORTED) continue;
+      printf("accept socket was %d\n",sock);
+      panic_perror("accept");
+    }
+  } while (new_fd < 0);
+
+  if (fcntl (new_fd, F_SETFL, O_NONBLOCK) < 0)
+    panic_perror("fcntl");
+
+#if 0
+#ifdef BUFSIZE                          //  make default
+  int bufsize = BUFSIZE;
+  if (setsockopt(new_fd,SOL_SOCKET,SO_SNDBUF,
+                 (const char *)&bufsize,sizeof(bufsize)) < 0) {
+    perror("setsockopt");
+  }
+  if (setsockopt(new_fd,SOL_SOCKET,SO_SNDBUF,
+                 (const char *)&bufsize,sizeof(bufsize)) < 0) {
+    perror("setsockopt");
+  }
+#endif
+#endif
+  int enable =1;
+  if (setsockopt(new_fd,IPPROTO_TCP,TCP_NODELAY,
+                 (const char *)&enable,sizeof(enable)) < 0) {
+    perror("setsockopt");
+  }
+#ifdef PRINT_LOCAL_PORT
+  struct sockaddr_in local_sa;
+  size = sizeof(local_sa);
+  getsockname(new_fd, (struct sockaddr*)&local_sa, &size);
+  printf("local_sa.sin_port = %d\n", local_sa.sin_port);
+#endif
+  return new_fd;
+}
+
+static int accept_compd (int sock) {
+  int new_fd = accept_sock(sock);
+  servers++;
+  new_servers++;
+  poll_init_set(new_fd, NULL, read_compd_request);
+  fd[new_fd].count = &servers;
+  fd[new_fd].start = now;
+  fd[new_fd].ready = now + server_delay * HRTIME_MSECOND;
+  fd[new_fd].keepalive = server_keepalive?server_keepalive:INT_MAX;
+
+  return 0;
+}
+
+static int accept_read (int sock) {
+  int new_fd = accept_sock(sock);
+  servers++;
+  new_servers++;
+  if (ftp) {
+    poll_init_set(new_fd, NULL, write_ftp_response);
+    make_response(new_fd, 220);
+  } else
+    poll_init_set(new_fd, read_request);
+  fd[new_fd].count = &servers;
+  fd[new_fd].start = now;
+  fd[new_fd].ready = now + server_delay * HRTIME_MSECOND;
+  fd[new_fd].keepalive = server_keepalive?server_keepalive:INT_MAX;
+
+  return 0;
+}
+
+static int accept_ftp_data (int sock) {
+  int new_fd = accept_sock(sock);
+  servers++;
+  new_servers++;
+  poll_init(new_fd);
+  fd[new_fd].ftp_data_fd = fd[sock].ftp_data_fd;
+  fd[fd[sock].ftp_data_fd].ftp_data_fd = new_fd;
+  fd[new_fd].state = STATE_FTP_DATA_READY;
+  fd[new_fd].count = &servers;
+  fd[new_fd].start = now;
+  fd[new_fd].ready = now + server_delay * HRTIME_MSECOND;
+  fd[new_fd].keepalive = server_keepalive?server_keepalive:INT_MAX;
+  fd[new_fd].state = STATE_FTP_DATA_READY;
+  fd[new_fd].doc = fd[sock].doc;
+  fd[new_fd].doc_length = fd[sock].doc_length;
+  if (verbose)
+    printf("accept_ftp_data %d for %d\n", new_fd, sock);
+  send_ftp_data_when_ready(new_fd);
+  return 1;
+}
+
+static int open_server(unsigned short int port, accept_fn_t accept_fn) {
+  struct linger lngr;
+  int sock;
+  int one = 1;
+  int err = 0;
+
+  /* Create the socket. */
+  sock = socket (AF_INET, SOCK_STREAM, 0);
+  if (sock < 0) {
+    perror ("socket");
+    exit (EXIT_FAILURE);
+  }
+  struct sockaddr_in & name = fd[sock].name;
+
+  /* Give the socket a name. */
+  name.sin_family = AF_INET;
+  name.sin_port = htons (port);
+  name.sin_addr.s_addr = htonl (INADDR_ANY);
+  if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, (char *) &one,
+                  sizeof (one)) < 0) {
+    perror((char*)"setsockopt");
+    exit( EXIT_FAILURE);
+  }
+  if ((err=bind (sock, (struct sockaddr *) &name, sizeof (name))) < 0) {
+    if (errno == EADDRINUSE)
+      return -EADDRINUSE;
+    perror("bind");
+    exit( EXIT_FAILURE);
+  }
+
+  int addrlen = sizeof(name);
+  if ((err = getsockname(sock, (struct sockaddr *) &name,
+#if 0
+                         &addrlen
+#else
+                         (socklen_t*)&addrlen
+#endif
+    )) < 0) {
+    perror("getsockname");
+    exit( EXIT_FAILURE);
+  }
+  ink_assert(addrlen);
+
+  /* Tell the socket not to linger on exit */
+  lngr.l_onoff = 0;
+  lngr.l_linger = 0;
+  if (setsockopt (sock, SOL_SOCKET, SO_LINGER, (char*) &lngr,
+                  sizeof (struct linger)) < 0) {
+    perror ("setsockopt");
+    exit (EXIT_FAILURE);
+  }
+
+  if (listen (sock, 1024) < 0) {
+    perror ("listen");
+    exit (EXIT_FAILURE);
+  }
+
+  /* put the socket in non-blocking mode */
+  if (fcntl (sock, F_SETFL, O_NONBLOCK) < 0) {
+    perror ("fcntl");
+    exit (EXIT_FAILURE);
+  }
+
+  if (verbose)
+    printf("opening server on %d port %d\n", sock, name.sin_port);
+
+  poll_init_set(sock, accept_fn);
+
+  return sock;
+}
+
+//   perform poll and invoke callbacks on active descriptors
+static int poll_loop() {
+  if (server_fd > 0) {
+    while (read_ready(server_fd) > 0)
+      accept_read(server_fd);
+  }
+  pollfd pfd[POLL_GROUP_SIZE];
+  int ip = 0;
+  now = ink_get_hrtime_internal();
+  for (int i = 0 ; i <= last_fd ; i++) {
+    if (fd[i].fd > 0 && (!fd[i].ready || now >= fd[i].ready)) {
+      pfd[ip].fd = i;
+      pfd[ip].events = 0;
+      pfd[ip].revents = 0;
+      if (fd[i].read_cb)
+        pfd[ip].events |= POLLIN;
+      if (fd[i].write_cb)
+        pfd[ip].events |= POLLOUT;
+      ip++;
+    }
+    if (ip >= POLL_GROUP_SIZE || i == last_fd) {
+      int n = poll(pfd,ip,POLL_TIMEOUT);
+      if (n > 0) {
+        for (int j = 0; j < ip ; j++) {
+          if (pfd[j].revents & (POLLIN|POLLERR|POLLHUP|POLLNVAL)) {
+            if (verbose) printf("poll read %d %X\n",pfd[j].fd,pfd[j].revents);
+            if (fd[pfd[j].fd].read_cb && fd[pfd[j].fd].read_cb(pfd[j].fd)) {
+              fd[pfd[j].fd].close();
+              continue;
+            }
+          }
+          if (pfd[j].revents & (POLLOUT|POLLERR|POLLHUP|POLLNVAL)) {
+            if (verbose) printf("poll write %d %X\n",pfd[j].fd,pfd[j].revents);
+            if (fd[pfd[j].fd].write_cb && fd[pfd[j].fd].write_cb(pfd[j].fd)) {
+              fd[pfd[j].fd].close();
+              continue;
+            }
+          }
+        }
+      }
+      ip = 0;
+    }
+  }
+  return 0;
+}
+
+static int gen_bfc_dist(double f = 10.0) {
+
+  if (docsize >= 0) return docsize;
+
+  double rand = 0.0;
+  double rand2 = 0.0;
+  bool f_given = f < 9.0;
+  if (!f_given) {
+    rand = drand48();
+    rand2 = drand48();
+  } else {
+    rand = f;
+    rand2 = (f * 13.0) - floor(f * 13.0);
+  }
+
+  int class_no;
+  int file_no = 0;
+
+  if(rand < 0.35){
+    class_no = 0;
+  }else if(rand < 0.85){
+    class_no = 1;
+  }else if (rand < 0.99){
+    class_no = 2;
+  }else {
+    class_no = 3;
+    if (f_given) rand2 = (f * 113.0) - floor(f * 113.0);
+  }
+
+  if(rand2 < 0.018){
+    file_no=0;
+  }else if(rand2 < 0.091){
+    file_no=1;
+  }else if(rand2 < 0.237){
+    file_no=2;
+  }else if(rand2 < 0.432){
+    file_no=3;
+  }else if(rand2 < 0.627){
+    file_no=4;
+  }else if(rand2 < 0.783){
+    file_no=5;
+  }else if(rand2 < 0.887){
+    file_no=6;
+  }else if(rand2 < 0.945){
+    file_no=7;
+  }else if(rand2 < 1.000){
+    file_no=8;
+  }
+  int size = 100;
+  int i;
+  for (i = 0; i < class_no; i++) {
+    size = size * 10;
+  }
+  int increment = size;
+  size = size * (file_no+1);
+  // vary about the mean doc size for
+  // that class/size
+  if (!f_given)
+    size += (int)((-increment * 0.5) + (increment * drand48()));
+  if (verbose) printf("gen_bfc_dist %d\n",size);
+  return size;
+}
+
+static void build_response() {
+  int maxsize = docsize > MAX_RESPONSE_LENGTH ? docsize : MAX_RESPONSE_LENGTH;
+  response_buffer = (char*) malloc (maxsize + HEADER_SIZE);
+  for (int i = 0 ; i < maxsize + HEADER_SIZE; i++)
+    response_buffer[i] = i % 256;
+}
+
+static void put_ka(int sock) {
+  int i = 0;
+  for (; i < n_ka_cache; i++ )
+    if (!ka_cache_head[i] || fd[ka_cache_head[i]].ip == fd[sock].ip)
+      goto Lpush;
+  i = n_ka_cache++;
+Lpush:
+  if (ka_cache_tail[i])
+    fd[ka_cache_tail[i]].next = sock;
+  else
+    ka_cache_head[i] = sock;
+  ka_cache_tail[i] = sock;
+}
+
+static int get_ka(unsigned int ip) {
+  for (int i = 0; i < n_ka_cache; i++ )
+    if (fd[ka_cache_head[i]].ip == ip) {
+      int res = ka_cache_head[i];
+      ka_cache_head[i] = fd[ka_cache_head[i]].next;
+      if (res == ka_cache_tail[i]) {
+        ink_assert(!ka_cache_head[i]);
+        ka_cache_tail[i] = 0;
+      }
+      return res;
+    }
+  return -1;
+}
+
+static void defer_url(char * url) {
+  if (n_defered_urls < MAX_DEFERED_URLS -1)
+    defered_urls[n_defered_urls++] = strdup(url);
+  else
+    fprintf(stderr, "too many defered urls, dropping '%s'\n", url);
+}
+
+static int throttling_connections() {
+  return client_rate && keepalive_cons && current_clients >= keepalive_cons;
+}
+
+static void done() {
+  interval_report();
+  exit(0);
+}
+
+static int is_done() {
+  return
+    (urls_mode && !current_clients && !n_defered_urls) ||
+    (bandwidth_test && bandwidth_test_to_go <= 0 && !current_clients);
+}
+
+static void undefer_url(bool unthrottled) {
+  if ((unthrottled || !throttling_connections()) && n_defered_urls) {
+    --n_defered_urls;
+    char * url =  defered_urls[n_defered_urls];
+    make_url_client(url,0,true,unthrottled);
+    free(url);
+    if (verbose)
+      printf("undefer_url: made client %d clients\n", current_clients);
+  } else
+    if (verbose) printf("undefer_url: throttle\n");
+  if (is_done())
+    done();
+}
+
+static void init_client(int sock) {
+  poll_init(sock);
+  fd[sock].start = now;
+  fd[sock].ready = now;
+  fd[sock].count = &clients;
+  poll_set(sock,NULL,write_request);
+}
+
+static unsigned int get_addr(char * host) {
+  unsigned int addr = inet_addr(host);
+  struct hostent *host_info = NULL;
+
+  if (!addr || (-1 == (int)addr)) {
+    host_info = gethostbyname(host);
+    if (!host_info) {
+      perror ("gethostbyname");
+      return (unsigned int)-1;
+    }
+    addr = *((unsigned int*) host_info->h_addr);
+  }
+
+  return addr;
+}
+
+static char * find_href_end (char *start, int len)
+{
+  char *end = start;
+  if (!start) return NULL;
+
+  while (*end && len > 0) {
+      if (*end == '\"') break;  /* " */
+      if (*end == '\'') break;
+      if (*end == '>')  break;
+      if (*end == ' ')  break;
+      if (*end == '\t') break;
+      if (*end == '\n') break;
+      if (*end == '<')  break;
+      if(*end & 0x80) break; /* hi order bit! */
+      len--;
+      end++;
+    }
+
+  if (*end == 0 || len == 0)
+    return NULL;
+  else
+    return end;
+} // find_href_end
+
+static char * find_href_start(const char * tag, char *base, int len)
+{
+  int taglen = strlen(tag);
+  if (base == NULL) return NULL;
+
+  char *start = base;
+  char *end = base + len;
+
+ Lagain:
+  {
+    start = strncasestr(start, tag, len);
+    if ((start == NULL) || (end-start < 6)) {
+      return NULL;
+    }
+    start += taglen;
+    len -= taglen;
+  } // block
+
+  while (ParseRules::is_ws (*start) && (end - start > 1)) {
+    start++;
+    len--;
+  }
+  if (*start == '=' && (end - start > 1)) {
+    start++;
+    len--;
+  } else {
+    goto Lagain;
+  }
+  while (ParseRules::is_ws(*start) && (end - start > 1)) {
+    start++;
+    len--;
+  }
+  //
+  // Optional quotes:  href="x" or href='x' or href=x
+  //
+  if ((*start == '\"'||(*start == '\'')) && (end - start > 1)) { /*"'*/
+    start++;
+    len--;
+  }
+  while (ParseRules::is_ws(*start) && (end - start > 1)) {
+    start++;
+    len--;
+  }
+
+  return start;
+} // find_href_start
+
+static int compose_url(char * new_url, char * base, char *input) {
+  char sche[8],host[512],port[10],path[512],frag[512],quer[512],para[512];
+  char curl[512];
+  int xsche,xhost,xport,xpath,xfrag,xquer,xpar,rel,slash;
+  ink_web_decompose_url(base,sche,host,port,path,frag,quer,para,
+                        &xsche,&xhost,&xport,&xpath,&xfrag,&xquer,
+                        &xpar,&rel,&slash);
+  strcpy(curl, "http://");
+  strcat(curl,host);
+  if (xport) {
+    strcat(curl,":");
+    strcat(curl,port);
+  }
+  strcat(curl,"/");
+  strcat(curl,path);
+
+  ink_web_canonicalize_url(curl, input, new_url, 512);
+  return 0;
+} // compose_urls
+
+static void compose_all_urls( const char * tag, char * buf, char * start, char * end,
+                       int buflen, char * base_url)
+{
+  char old;
+  while ((start = find_href_start(tag, end, buflen - (end - buf)))) {
+    char newurl[512];
+    end = (char *) find_href_end(start, MIN(buflen - (start-buf), 512 - 10));
+    if (!end) {
+      end = start + strlen(tag);
+      continue;
+    }
+    old = *end;
+    *end = 0;
+    compose_url(newurl, base_url, start);
+    make_url_client(newurl,base_url);
+    *end = old;
+  } // while
+}
+//
+// Input is a NULL-terminated string (buf of buflen)
+//       also, a read-write base_url
+//
+static void extract_urls(char * buf, int buflen, char * base_url) {
+  //if (verbose) printf("EXTRACT<<%s\n>>", buf);
+  char *start = NULL;
+  char *end = NULL;
+  char old_base[512];
+  strcpy(old_base, base_url);
+
+  start = strncasestr(buf, "<base ", buflen);
+  if (start) {
+    end = (char*)memchr(start, '>', buflen - (start - buf));
+    if (end) {
+      char * rover = strncasestr(start, "href", end - start);
+      if (rover) {
+        rover += 4;
+        while (rover < end &&
+               (ParseRules::is_ws(*rover) || *rover == '=' || *rover == '\''
+                || *rover == '\"'))    /* " */
+          rover++;
+        start = rover;
+        while (rover < end &&
+               !(ParseRules::is_ws(*rover) || *rover == '\''
+                 || *rover == '\"'))
+          rover++;
+        *rover = 0;
+        compose_url(base_url,old_base,start);
+        // fixup unqualified hostnames (e.g. http://internal/foo)
+        char * he = strchr(base_url + 8, '/');
+        if (!memchr(base_url,'.',he-base_url)) {
+          char t[512]; strcpy(t,base_url);
+          char * old_he = strchr(old_base + 8, '.');
+          if (old_he) {
+            char * old_hee = strchr(old_he, '/');
+            if (old_hee) {
+              memcpy(base_url,t,(he-base_url));
+              memcpy(base_url + (he-base_url), old_he, (old_hee-old_he));
+              memcpy(base_url + (he-base_url) + (old_hee-old_he),
+                     t+(he-base_url), strlen(t+(he-base_url)));
+              base_url[(he-base_url) + (old_hee-old_he) +
+                      strlen(t+(he-base_url))] = 0;
+            }}}}}}
+
+  end = buf;
+  if (follow)
+    compose_all_urls("href", buf, start, end, buflen, base_url);
+  if (fullpage) {
+    const char *tags[] = { "src", "image", "object", "archive", "background",
+                     // "location", "code"
+    };
+    for (unsigned i = 0 ; i < sizeof(tags)/sizeof(tags[0]) ; i++) {
+      compose_all_urls(tags[i], buf, start, end, buflen, base_url);
+    }
+  }
+} // extract_urls
+
+static void follow_links(int sock) {
+  if (urls_mode) {
+    if (fd[sock].binary) return;
+    int l = fd[sock].response_remaining;
+    char * r = fd[sock].response, *p = r, *n = r;
+    if (r)
+      extract_urls(r,l,fd[sock].base_url);
+    if (l < MAX_BUFSIZE) {
+      while (n) {
+        n = (char*)memchr(p,'\n',l - (p - r));
+        if (!n) n = (char*)memchr(p,'\r',l - (p - r));
+        if (n) p = n + 1;
+      }
+      int done = p - r, remaining = l - done;
+      if (done) {
+        memmove(r, p, remaining);
+        fd[sock].response_remaining = remaining;
+      }
+    } else  // bail
+      fd[sock].response_length = 0;
+  }
+}
+
+static int verify_content(int sock, char * buf, int done) {
+  if (urls_mode && !check_content)
+    return 1;
+  int l = fd[sock].response_length;
+  char * d = response_buffer + (l % 256) + fd[sock].nalternate;
+  int left = fd[sock].length;
+  if (left > 0) {
+    if (embed_url && !fd[sock].jg_compressed) {
+      if (l == left && left > 64) {
+        char *url_end = NULL, *url_start = NULL;
+        get_path_from_req(fd[sock].base_url,&url_start,&url_end);
+        if (url_end - url_start < done) {
+          if (memcmp(url_start,buf,url_end - url_start))
+            return 0;
+        }
+      }
+      // skip past the URL which is embedded in the document
+      // to confound the fingerprinting code
+      if (l - left < 64) {
+        int skip = 64 - (l - left);
+        left -= skip;
+        done -= skip;
+        buf += skip;
+        if (done < 0)
+          done = 0;
+      }
+    }
+    if (!check_content)
+      return 1;
+    if (done > left)
+      done = left;
+    if (memcmp(buf, d + (fd[sock].response_length - left), done))
+      return 0;
+  }
+  return 1;
+}
+
+#define ZIPF_SIZE (1<<20)
+static double *zipf_table = NULL;
+static void build_zipf() {
+  zipf_table = (double*)malloc(ZIPF_SIZE * sizeof(double));
+  for (int i = 0; i < ZIPF_SIZE; i++)
+    zipf_table[i] = 1.0 / pow(i+2, zipf);
+  for (int i = 1; i < ZIPF_SIZE; i++)
+    zipf_table[i] = zipf_table[i-1] + zipf_table[i];
+  double x = zipf_table[ZIPF_SIZE-1];
+  for (int i = 0; i < ZIPF_SIZE; i++)
+    zipf_table[i] = zipf_table[i] / x;
+}
+
+static int get_zipf(double v) {
+  int l = 0, r = ZIPF_SIZE-1, m;
+  do {
+    m = (r + l) / 2;
+    if (v < zipf_table[m])
+      r = m - 1;
+    else
+      l = m + 1;
+  } while (l < r);
+  if (zipf_bucket_size == 1)
+    return m;
+  double x = zipf_table[m], y = zipf_table[m+1];
+  m += static_cast<int> ((v - x) / (y - x));
+  return m;
+}
+
+static int read_response_error(int sock) {
+  errors++;
+  fd[sock].close();
+  if (!urls_mode)
+    make_bfc_client(proxy_addr, proxy_port);
+  return 0;
+}
+
+static int read_response(int sock) {
+  int err = 0;
+
+  if (fd[sock].req_pos >= 0) {
+    if (!fd[sock].req_pos)
+      memset(fd[sock].req_header,0,HEADER_SIZE);
+    do {
+      int l = HEADER_SIZE - fd[sock].req_pos - 1;
+      if (l <= 0) {
+        if (verbose || verbose_errors)
+          printf("header too long '%s'", fd[sock].req_header);
+        return read_response_error(sock);
+      }
+      err = read(sock, fd[sock].req_header + fd[sock].req_pos,
+                 HEADER_SIZE - fd[sock].req_pos - 1);
+    } while ((err == -1) && (errno == EINTR));
+    if (err <= 0) {
+      if (!err) {
+        if (verbose_errors)
+          printf("read_response %d closed during header for '%s' after %d%s\n",
+                 sock, fd[sock].base_url, fd[sock].req_pos,
+                 (keepalive && (fd[sock].keepalive != keepalive)
+                  && !fd[sock].req_pos) ? " -- keepalive timeout" : "");
+        return read_response_error(sock);
+      }
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      if (errno == ECONNRESET) {
+        if (!fd[sock].req_pos && keepalive > 0 &&
+            fd[sock].keepalive != keepalive) {
+          fd[sock].close();
+          if (!urls_mode)
+            make_bfc_client(proxy_addr, proxy_port);
+          return 0;
+        }
+        if (verbose || verbose_errors)
+          perror ("read");
+        goto Ldone;
+      }
+      panic_perror("read");
+    }
+    if (verbose)
+      printf("read %d header %d [%s]\n",
+             sock, err, fd[sock].req_header);
+    b1_ops++;
+
+    strcpy(fd[sock].response_header, fd[sock].req_header);
+
+    b1latency += (int)elapsed_from_start(sock);
+    new_cbytes += err;
+    new_tbytes += err;
+    fd[sock].req_pos += err;
+    fd[sock].bytes += err;
+    fd[sock].active = ink_get_hrtime_internal();
+    int total_read = fd[sock].req_pos;
+    char * p = fd[sock].req_header;
+    char * cl = NULL;
+    int cli = 0;
+    while ((p = strchr(p,'\n'))) {
+      if (verbose) printf("read header end? [%s]\n", p);
+      if (p[1] == '\n' || (p[1] == '\r' && p[2] == '\n')) {
+        int off = 1 + (p[1] == '\r' ? 2 : 1);
+        p += off;
+        strncpy(fd[sock].response_header, fd[sock].req_header, p - fd[sock].req_header);
+        fd[sock].response_header[p - fd[sock].req_header] = '\0';
+        int lbody =  fd[sock].req_pos - (p - fd[sock].req_header);
+        cl = strncasestr(fd[sock].req_header,"Content-Length:",
+                         p - fd[sock].req_header);
+        if (cl) {
+          cli = atoi(cl + 16);
+            int expected_length = fd[sock].response_length;
+            if (compd_suite) {
+              if (strstr(fd[sock].req_header, "x-jg")) {
+                fd[sock].jg_compressed = 1;
+                expected_length = (fd[sock].response_length * 2) / 3;
+              }
+            }
+            if (fd[sock].response_length && verbose_errors &&
+                expected_length != cli && !nocheck_length)
+              fprintf(stderr, "bad Content-Length expected %d got %d orig %d\n",
+                      expected_length, cli, fd[sock].response_length);
+            fd[sock].response_length = fd[sock].length = cli;
+        }
+        if (fd[sock].req_header[9] == '2') {
+          if (!verify_content(sock,p,lbody)) {
+            if (verbose || verbose_errors)
+              printf("content verification error '%s'\n", fd[sock].base_url);
+            return read_response_error(sock);
+          }
+        }
+        total_proxy_response_body_bytes += lbody;
+        total_proxy_response_header_bytes += p - fd[sock].req_header;
+        fd[sock].length -= lbody;
+        fd[sock].req_pos = -1;
+        if (fd[sock].length && drand48() < client_abort_rate) {
+          fd[sock].client_abort = 1;
+          fd[sock].length = (int)(drand48() * (fd[sock].length -1));
+          fd[sock].keepalive = 0;
+          fd[sock].drop_after_CL = 1;
+        }
+        if (verbose) printf("read %d header done\n", sock);
+        break;
+      }
+      p++;
+    }
+    if (!p) return 0;
+    int hlen = p -  fd[sock].req_header;
+    if (show_headers) {
+      printf("Response From Proxy: {\n");
+      for (char * c = fd[sock].req_header; c < p ; c++)
+        putc(*c,stdout);
+      printf("}\n");
+    }
+    if (obey_redirects && urls_mode &&
+        fd[sock].req_header[9] == '3' &&
+        fd[sock].req_header[10] == '0' &&
+        (fd[sock].req_header[11] == '1' || fd[sock].req_header[11] == '2'))
+    {
+      char * redirect = strstr(fd[sock].req_header,"http://");
+      char * e = redirect?(char*)memchr(redirect,'\n',hlen):0;
+      if (!redirect || !e)
+        fprintf(stderr, "bad redirect '%s'",fd[sock].req_header);
+      else {
+        if (e[-1]=='\r') e--;
+        *e = 0;
+        make_url_client(redirect);
+      }
+      fd[sock].close();
+      return 0;
+    }
+    if (fd[sock].req_header[9] != '2') {
+      if (verbose_errors) {
+        char * e = (char*)memchr(fd[sock].req_header, '\r', hlen);
+        if (e) *e = 0;
+        else {
+          char * e = (char*)memchr(fd[sock].req_header, '\n', hlen);
+          if (e) *e = 0;
+          else *p = 0;
+        }
+        printf("error response %d after %dms: '%s':'%s'\n",
+            sock, (int)elapsed_from_start(sock), fd[sock].base_url, fd[sock].req_header);
+      }
+      return read_response_error(sock);
+    }
+    char * r = fd[sock].req_header;
+    int length = p - r;
+    char * ka = check_keepalive(r, length);
+    if (urls_mode) {
+      fd[sock].response_remaining = total_read - length;
+      if (fd[sock].response_remaining)
+        memcpy(fd[sock].response,p,fd[sock].response_remaining);
+      if (check_content && !cl) {
+        if (verbose || verbose_errors)
+          printf("missiing Content-Length '%s'\n", fd[sock].base_url);
+        return read_response_error(sock);
+      }
+    } else
+      fd[sock].response = 0;
+    if (!cl || !ka)
+      fd[sock].keepalive = -1;
+    if (!cl)
+      fd[sock].length = INT_MAX;
+  }
+
+  if (fd[sock].length <= 0 &&
+      (fd[sock].keepalive > 0 || fd[sock].drop_after_CL))
+    goto Ldone;
+
+  {
+    char * r = NULL;
+    char buf[MAX_BUFSIZE];
+    int toread = cbuffersize;
+    if (urls_mode) {
+      if (fd[sock].response_remaining + cbuffersize < MAX_BUFSIZE)
+        r = fd[sock].response + fd[sock].response_remaining;
+      else {
+        toread = MAX_BUFSIZE - fd[sock].response_remaining;
+        if (!toread) {
+          if (verbose_errors || verbose)
+            fprintf(stderr,"line exceeds buffer, unable to follow links\n");
+          toread = cbuffersize;
+          r = fd[sock].response;
+          fd[sock].response_remaining = 0;
+        } else
+          r = fd[sock].response + fd[sock].response_remaining;
+      }
+    } else
+      r = buf;
+    if (fast(sock,client_speed,fd[sock].bytes)) return 0;
+    if (fd[sock].bytes > abort_retry_bytes &&
+        (((now - fd[sock].start + 1)/HRTIME_SECOND) > abort_retry_secs) &&
+        !faster_than(sock,abort_retry_speed,fd[sock].bytes))
+    {
+      fd[sock].client_abort = 1;
+      fd[sock].keepalive = 0;
+      if (!urls_mode && !client_rate)
+        make_bfc_client(proxy_addr, proxy_port);
+      goto Ldone;
+    }
+    do {
+      err = read(sock, r, toread);
+    } while ((err == -1) && (errno == EINTR));
+    if (err < 0) {
+      if (errno == EAGAIN || errno == ENOTCONN) return 0;
+      if (errno == ECONNRESET) {
+        if (verbose || verbose_errors)
+          perror ("read");
+        goto Ldone;
+      }
+      panic_perror("read");
+    }
+    if (!err)
+      goto Ldone;
+    if (!verify_content(sock,buf,err)) {
+      if (verbose || verbose_errors)
+        printf("content verification error '%s'\n", fd[sock].base_url);
+      return read_response_error(sock);
+    }
+    total_proxy_response_body_bytes += err;
+    new_cbytes += err;
+    new_tbytes += err;
+    fd[sock].response_remaining += err;
+    fd[sock].bytes += err;
+    follow_links(sock);
+    if (fd[sock].length != INT_MAX)
+      fd[sock].length -= err;
+    fd[sock].active = ink_get_hrtime_internal();
+    if (verbose)
+      printf("read %d got %d togo %d %d %d\n", sock, err, fd[sock].length,
+             fd[sock].keepalive, fd[sock].drop_after_CL);
+  }
+
+  if (fd[sock].length <= 0 &&
+      (fd[sock].keepalive > 0 || fd[sock].drop_after_CL))
+    goto Ldone;
+
+  return 0;
+
+Ldone:
+  if (!fd[sock].client_abort &&
+      !(server_abort_rate > 0) &&
+      fd[sock].length && fd[sock].length != INT_MAX)
+  {
+    if (verbose || verbose_errors)
+      printf("bad length %d wanted %d after %d ms: '%s'\n",
+             fd[sock].response_length - fd[sock].length,
+             fd[sock].response_length,
+             (int)((ink_get_hrtime_internal() - fd[sock].active)/HRTIME_MSECOND),
+             fd[sock].base_url);
+    return read_response_error(sock);
+  }
+  if (verbose) printf("read %d done\n", sock);
+  new_ops++;
+  double thislatency = elapsed_from_start(sock);
+  latency += (int)thislatency;
+  lat_ops++;
+  if (fd[sock].keepalive > 0) {
+    fd[sock].reset();
+    put_ka(sock);
+    current_clients--;
+    if (urls_mode) {
+      undefer_url();
+      return 0;
+    }
+  } else
+    fd[sock].close();
+  if (!urls_mode && !client_rate)
+    make_bfc_client(proxy_addr, proxy_port);
+  return 0;
+}
+
+static int write_request(int sock) {
+  int err = 0;
+
+  do {
+    err = write(sock, fd[sock].req_header + fd[sock].req_pos,
+                fd[sock].length - fd[sock].req_pos);
+  } while ((err == -1) && (errno == EINTR));
+  if (err <= 0) {
+    if (!err) {
+      if (verbose_errors) printf("write %d closed early\n", sock);
+      goto Lerror;
+    }
+    if (errno == EAGAIN || errno == ENOTCONN) return 0;
+    perror("write");
+    goto Lerror;
+  }
+  if (verbose) printf("write %d %d\n", sock, err);
+
+  new_tbytes += err;
+  total_client_request_bytes += err;
+  fd[sock].req_pos += err;
+  fd[sock].active = ink_get_hrtime_internal();
+
+  if (fd[sock].req_pos >= fd[sock].length) {
+    if (verbose) printf("write complete %d %d\n", sock, fd[sock].length);
+    fd[sock].req_pos = 0;
+    fd[sock].length = fd[sock].response_length;
+    poll_set(sock, read_response);
+  }
+  return 0;
+Lerror:
+  errors++;
+#ifndef RETRY_CLIENT_WRITE_ERRORS
+  if (!--nclients)
+    panic("no more clients\n");
+  return 1;
+#else
+  if (!urls_mode)
+    make_bfc_client(proxy_host, proxy_port);
+  fd[sock].close();
+  return 0;
+#endif
+}
+
+static int write_ftp_response(int sock) {
+  int err = 0;
+
+  do {
+    err = write(sock, fd[sock].req_header + fd[sock].req_pos,
+                fd[sock].length - fd[sock].req_pos);
+  } while ((err == -1) && (errno == EINTR));
+
+  if (err <= 0) {
+    if (!err) {
+      if (verbose_errors) printf("write %d closed early\n", sock);
+      goto Lerror;
+    }
+    if (errno == EAGAIN || errno == ENOTCONN) return 0;
+    perror("write");
+    goto Lerror;
+  }
+  if (verbose) printf("write %d %d\n", sock, err);
+
+  new_tbytes += err;
+  fd[sock].req_pos += err;
+
+  if (fd[sock].req_pos >= fd[sock].length) {
+    if (verbose) printf("write complete %d %d\n", sock, fd[sock].length);
+    fd[sock].req_pos = 0;
+    fd[sock].length = fd[sock].response_length;
+    poll_set(sock, read_ftp_request);
+  }
+  return 0;
+Lerror:
+  errors++;
+  return 1;
+}
+
+static int make_client (unsigned int addr, int port) {
+  struct linger lngr;
+
+  int sock = socket (PF_INET, SOCK_STREAM, 0);
+  if (sock < 0)
+    panic_perror ("socket");
+
+  if (fcntl (sock, F_SETFL, O_NONBLOCK) < 0)
+    panic_perror ("fcntl");
+
+  /* tweak buffer size so that remote end can't close connection too fast */
+
+#if 0
+  int bufsize = cbuffersize;
+  if (setsockopt(sock,SOL_SOCKET,SO_RCVBUF,
+                 (const char *)&bufsize,sizeof(bufsize)) < 0)
+    panic_perror("setsockopt");
+  if (setsockopt(sock,SOL_SOCKET,SO_SNDBUF,
+                 (const char *)&bufsize,sizeof(bufsize)) < 0)
+    panic_perror("setsockopt");
+#endif
+  int enable =1;
+  if (setsockopt(sock,IPPROTO_TCP,TCP_NODELAY,
+                 (const char *)&enable,sizeof(enable)) < 0)
+    panic_perror("setsockopt");
+
+  /* Tell the socket not to linger on exit */
+  lngr.l_onoff = 1;
+  lngr.l_linger = 0;
+  if (!ftp) {  // this causes problems for PORT ftp -- ewong
+    if (setsockopt (sock, SOL_SOCKET, SO_LINGER, (char*) &lngr,
+                    sizeof (struct linger)) < 0) {
+      perror ("setsockopt");
+      exit (EXIT_FAILURE);
+    }
+  }
+
+  /* Give the socket a name. */
+  struct sockaddr_in name;
+  name.sin_family = AF_INET;
+  name.sin_port = htons(port);
+  name.sin_addr.s_addr = addr;
+
+  if (verbose) printf("connecting to %u.%u.%u.%u:%d\n",
+                      ((unsigned char*)&addr)[0], ((unsigned char*)&addr)[1],
+                      ((unsigned char*)&addr)[2], ((unsigned char*)&addr)[3],
+                      port);
+
+  while (connect (sock, (struct sockaddr *) &name, sizeof (name)) < 0) {
+    if (errno == EINTR) continue;
+    if (errno == EINPROGRESS)
+      break;
+    if (verbose_errors) fprintf(stderr, "connect failed errno = %d\n", errno);
+    errors++;
+    return -1;
+  }
+
+  init_client(sock);
+  fd[sock].ip = addr;
+  clients++;
+  current_clients++;
+  new_clients++;
+  return sock;
+}
+
+static void make_bfc_client (unsigned int addr, int port) {
+  int sock = -1;
+  if (bandwidth_test && bandwidth_test_to_go-- <= 0)
+    return;
+  if (keepalive)
+    sock = get_ka(addr);
+  if (sock < 0) {
+    sock = make_client(addr,port);
+    fd[sock].keepalive = keepalive;
+  } else {
+    init_client(sock);
+    current_clients++;
+    fd[sock].keepalive--;
+  }
+  if (sock<0)
+    panic("unable to open client connection\n");
+  double h = drand48();
+  double dr = drand48();
+  if (zipf == 0.0) {
+    if (h < hitrate) {
+      dr = 1.0 + (floor(dr * hotset) / hotset);
+      fd[sock].response_length = gen_bfc_dist(dr - 1.0);
+    } else
+      fd[sock].response_length = gen_bfc_dist(dr);
+  } else {
+    unsigned long long int doc = get_zipf(dr);
+    // Some large randomish number.
+    unsigned long long int doc_len_int = doc * 0x14A4D0FB0E93E3A7LL;
+    unsigned long int x = doc_len_int;
+    double y = (double)x;
+    y /= 0x100000000LL;  // deterministic random number between 0 and 1.0
+    fd[sock].response_length = gen_bfc_dist(y);
+    dr = doc;
+  }
+  if (verbose) printf("gen_bfc_dist %d\n", fd[sock].response_length);
+  char eheaders[16384];
+  *eheaders = 0;
+  int nheaders = extra_headers;
+  if (nheaders>0) {
+    char * eh = eheaders;
+    if (!vary_user_agent) {
+      eh += sprintf(eh, "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.31 i586)\r\n");
+      nheaders--;
+    }
+    if (nheaders>0)
+      eh += sprintf(eh, "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n");
+    while (--nheaders>0)
+      eh += sprintf(eh, "Extra-Header%d: a lot of junk for header %d\r\n",
+                    nheaders, nheaders);
+  }
+  char cookie[256];
+  *cookie = 0;
+  fd[sock].nalternate = (int)(alternates * drand48());
+  if (alternates) {
+    if (!vary_user_agent) {
+      sprintf(cookie, "Cookie: jtest-cookie-%d\r\n", fd[sock].nalternate);
+    } else {
+      sprintf(cookie, "User-Agent: jtest-browser-%d\r\n", fd[sock].nalternate);
+    }
+  }
+  const char * extension;
+  switch (request_extension) {
+    case 1: extension = ".html"; break;
+    case 2: extension = ".jpeg"; break;
+    case 3: extension = "/"; break;
+    default:
+      extension = (compd_suite ? ".jpeg" : "");
+  }
+  char evo_str[20];
+  evo_str[0] = '\0';
+  if (evo_rate != 0.0) {
+    double evo_index = dr + (((double)now)/HRTIME_HOUR) * evo_rate;
+    sprintf(evo_str, ".%u", ((unsigned int)evo_index));
+  }
+  if (0 == hostrequest) {
+    sprintf(fd[sock].req_header,
+            ftp ?
+            "GET ftp://%s:%d/%12.10f/%d%s%s HTTP/1.0\r\n"
+            "%s"
+            "%s"
+            "%s"
+            "%s"
+            "\r\n"
+            :
+            "GET http://%s:%d/%12.10f/%d%s%s HTTP/1.0\r\n"
+            "%s"
+            "%s"
+            "%s"
+            "%s"
+            "\r\n"
+            ,
+            local_host, server_port, dr,
+            fd[sock].response_length, evo_str, extension,
+            fd[sock].keepalive?"Proxy-Connection: Keep-Alive\r\n":"",
+            reload_rate > drand48() ? "Pragma: no-cache\r\n":"",
+            eheaders, cookie
+      );
+  } else if (1 == hostrequest) {
+    sprintf(fd[sock].req_header,
+            "GET /%12.10f/%d%s%s HTTP/1.0\r\n"
+            "Host: %s:%d\r\n"
+            "%s"
+            "%s"
+            "%s"
+            "%s"
+            "\r\n",
+            dr, fd[sock].response_length, evo_str, extension,
+            local_host, server_port,
+            fd[sock].keepalive?"Connection: Keep-Alive\r\n":"",
+            reload_rate > drand48() ? "Pragma: no-cache\r\n":"",
+            eheaders, cookie);
+  } else if (2 == hostrequest) {
+    /* Send a non-proxy client request i.e. for Transparency testing */
+    sprintf(fd[sock].req_header,
+            "GET /%12.10f/%d%s%s HTTP/1.0\r\n"
+            "%s"
+            "%s"
+            "%s"
+            "%s"
+            "\r\n",
+            dr, fd[sock].response_length, evo_str, extension,
+            fd[sock].keepalive?"Connection: Keep-Alive\r\n":"",
+            reload_rate > drand48() ? "Pragma: no-cache\r\n":"",
+            eheaders,
+            cookie);
+  }
+  if (verbose) printf("request %d [%s]\n", sock, fd[sock].req_header);
+  fd[sock].length = strlen(fd[sock].req_header);
+  {
+    char * s = fd[sock].req_header;
+    char * e = (char*)memchr(s, '\r', 512);
+    char * url = fd[sock].base_url;
+    memcpy(url,s,e-s);
+    url[e-s] = 0;
+    if (show_before) printf("%s\n", url);
+  }
+  if (show_headers) printf("Request to Proxy: {\n%s}\n", fd[sock].req_header);
+}
+
+#define RUNNING(_n) \
+  total_##_n = (((total_##_n * (average_over-1))/average_over) + new_##_n); \
+  running_##_n =  total_##_n / average_over; \
+  new_##_n = 0;
+
+#define RUNNING_AVG(_t,_n,_o) \
+  _t = _o?((_t * (average_over-1) + _n/_o) / average_over):_t; \
+  _n = 0;
+
+void interval_report() {
+  static int here = 0;
+  now = ink_get_hrtime_internal();
+  if (!(here++ % 20))
+    printf(
+ " con  new     ops   1B  lat      bytes/per     svrs  new  ops      total   time  err\n");
+  RUNNING(clients);
+  RUNNING_AVG(running_latency,latency,lat_ops); lat_ops = 0;
+  RUNNING_AVG(running_b1latency,b1latency,b1_ops); b1_ops = 0;
+  RUNNING(cbytes);
+  RUNNING(ops);
+  RUNNING(servers);
+  RUNNING(sops);
+  RUNNING(tbytes);
+  float t = (float)(now - start_time);
+  uint64_t per = current_clients ? running_cbytes / current_clients : 0;
+  printf("%4d %4d %7.1f %4d %4d %10" PRIu64"/%-6" PRIu64"  %4d %4d %4d  %9" PRIu64" %6.1f %4d\n",
+         current_clients, // clients, n_ka_cache,
+         running_clients,
+         running_ops, running_b1latency, running_latency,
+         running_cbytes, per,
+         running_servers,
+         running_servers,
+         running_sops, running_tbytes,
+         t/((float)HRTIME_SECOND),
+         errors);
+  if (is_done()) {
+    printf("Total Client Request Bytes:\t\t%" PRIu64"\n", total_client_request_bytes);
+    printf("Total Server Response Header Bytes:\t%" PRIu64"\n",
+           total_server_response_header_bytes);
+    printf("Total Server Response Body Bytes:\t%" PRIu64"\n",
+           total_server_response_body_bytes);
+    printf("Total Proxy Request Bytes:\t\t%" PRIu64"\n", total_proxy_request_bytes);
+    printf("Total Proxy Response Header Bytes:\t%" PRIu64"\n",
+           total_proxy_response_header_bytes);
+    printf("Total Proxy Response Body Bytes:\t%" PRIu64"\n",
+           total_proxy_response_body_bytes);
+  }
+}
+
+#define URL_HASH_ENTRIES     url_hash_entries
+#define BYTES_PER_ENTRY      3
+#define ENTRIES_PER_BUCKET   16
+#define OVERFLOW_ENTRIES     1024                           // many many
+
+#define BUCKETS              (URL_HASH_ENTRIES / ENTRIES_PER_BUCKET)
+#define BYTES_PER_BUCKET     (BYTES_PER_ENTRY * ENTRIES_PER_BUCKET)
+#define URL_HASH_BYTES       \
+            (BYTES_PER_ENTRY * (URL_HASH_ENTRIES + OVERFLOW_ENTRIES))
+#define CHANCE_OF_COLLISION  \
+            (((double)ENTRIES_PER_BUCKET)/((double)(1<<(8*3))))
+#define WANT_FILESIZE        0
+
+// NOTE: change to match BYTES_PER_ENTRY
+#define ENTRY_TAG(_x)               \
+  (((unsigned int)_x[0] << 16) +    \
+   ((unsigned int)_x[1] << 8) +     \
+   (unsigned int)_x[2])
+#define SET_ENTRY_TAG(_x,_t) \
+  _x[0] = _t >> 16;          \
+  _x[1] = (_t >> 8) & 0xFF;  \
+  _x[2] = _t & 0xFF;
+
+#define MASK_TAG(_x)  (_x & ((1U << (BYTES_PER_ENTRY * 8)) - 1))
+
+#define BEGIN_HASH_LOOP                                            \
+    unsigned int bucket = (i % BUCKETS);                           \
+    unsigned int tag = MASK_TAG((unsigned int)(i / BUCKETS));      \
+    if (!tag) tag++;                                               \
+    unsigned char * base = bytes + bucket * BYTES_PER_BUCKET;      \
+    unsigned char * last = bytes + (bucket+1) * BYTES_PER_BUCKET - \
+                           BYTES_PER_ENTRY;                        \
+    (void)last;                                                    \
+                                                                   \
+    for (unsigned int x = 0 ; x < ENTRIES_PER_BUCKET ; x++) {      \
+      unsigned char * e = base + x * BYTES_PER_ENTRY;
+
+#define BEGIN_OVERFLOW_HASH_LOOP                                     \
+    for (unsigned int j = 0 ; j < ENTRIES_PER_BUCKET ; j++) {        \
+      unsigned char * e = base + (URL_HASH_ENTRIES + j) * BYTES_PER_ENTRY;
+
+#define END_HASH_LOOP \
+    }
+
+struct UrlHashTable {
+
+  unsigned int    numbytes;
+  unsigned char * bytes;
+  int fd;
+
+  void zero() { memset(bytes, 0, numbytes); }
+
+  void alloc(unsigned int want);
+
+  void set(uint64_t i) {
+    BEGIN_HASH_LOOP {
+      if (!ENTRY_TAG(e)) {
+        SET_ENTRY_TAG(e,tag);
+        return;
+      }
+    } END_HASH_LOOP;
+
+    fprintf(stderr, "url hash table overflow: %X, %X\n", (int)(base-bytes), tag);
+
+    BEGIN_OVERFLOW_HASH_LOOP {
+      if (!ENTRY_TAG(e)) {
+        SET_ENTRY_TAG(e,tag);
+        return;
+      }
+    } END_HASH_LOOP;
+
+    ink_fatal(1, "overview entries overflow");
+  }
+
+  void clear(uint64_t i) {
+    BEGIN_HASH_LOOP {
+      if (ENTRY_TAG(e) == tag) {
+        if (e != last)
+          SET_ENTRY_TAG(e,ENTRY_TAG(last));
+        SET_ENTRY_TAG(last,0);
+        return;
+      }
+    } END_HASH_LOOP;
+
+    fprintf(stderr, "url hash table entry to clear not found: %X, %X\n",
+            (int)(base-bytes), tag);
+  }
+
+  int is_set(uint64_t i) {
+    BEGIN_HASH_LOOP {
+      if (ENTRY_TAG(e) == tag)
+        return 1;
+    } END_HASH_LOOP;
+
+    if (ENTRY_TAG((last))) {
+      BEGIN_OVERFLOW_HASH_LOOP {
+        if (ENTRY_TAG(e) == tag)
+          return 1;
+      } END_HASH_LOOP;
+    }
+    return 0;
+  }
+
+  UrlHashTable();
+
+  ~UrlHashTable();
+};
+UrlHashTable * uniq_urls = NULL;
+
+UrlHashTable::UrlHashTable() {
+  off_t len = 0;
+
+  if (!url_hash_entries)
+    return;
+
+  if (*url_hash_filename) {
+    ink_assert((fd = open(url_hash_filename,O_RDWR|O_CREAT, 0644))>0);
+    len = lseek(fd, 0, SEEK_END);
+  }
+
+  if (url_hash_entries > 0) {
+    // if they specify the number of entries round it up
+    url_hash_entries =
+      (url_hash_entries + ENTRIES_PER_BUCKET - 1) & ~(ENTRIES_PER_BUCKET - 1);
+    numbytes = URL_HASH_BYTES;
+
+    // ensure it is either a new file or the correct size
+    if (len != 0 && len != numbytes)
+      panic("specified size != file size\n");
+
+  } else {
+
+    // otherwise make sure the file is non-zero and then use its
+    // size as the size
+    if (!len)
+      panic("zero size URL Hash Table\n");
+    if (len != URL_HASH_BYTES) {
+      fprintf(stderr,
+              "FATAL: hash file length (%jd) != URL_HASH_BYTES (%jd)\n",
+              (intmax_t)len, (intmax_t)URL_HASH_BYTES);
+      exit(1);
+    }
+    numbytes = len;
+  }
+
+  if (*url_hash_filename) {
+    ink_assert( !ftruncate(fd,numbytes) );
+    bytes = (unsigned char *)
+      mmap(NULL,numbytes,PROT_READ|PROT_WRITE,
+           MAP_SHARED|MAP_NORESERVE,
+           fd, 0);
+    if (bytes == (unsigned char*)MAP_FAILED || !bytes)
+      panic("unable to map URL Hash file\n");
+  } else {
+    bytes = (unsigned char *)malloc(numbytes);
+    ink_assert(bytes);
+    zero();
+  }
+} // UrlHashTable::UrlHashTable
+
+UrlHashTable::~UrlHashTable()
+{
+  ink_assert(!munmap((char*)bytes, numbytes));
+  ink_assert(!close(fd));
+} // UrlHashTable::~UrlHashTable
+
+static int seen_it(char * url) {
+  if (!url_hash_entries)
+    return 0;
+  union {
+    unsigned char md5[16];
+    uint64_t i[2];
+  } u;
+  int l = 0;
+  char * para = strrchr(url, '#');
+  if (para)
+    l = para - url;
+  else
+    l = strlen(url);
+  ink_code_md5((unsigned char*)url,l,u.md5);
+  uint64_t x = u.i[0] + u.i[1];
+  if (uniq_urls->is_set(x)) {
+    if (verbose) printf("YES: seen it '%s'\n", url);
+    return 1;
+  }
+  uniq_urls->set(x);
+  if (verbose) printf("NO: marked it '%s'\n", url);
+  return 0;
+}
+
+static int make_url_client(const char * url,const char * base_url, bool seen,
+                           bool unthrottled)
+{
+  int iport = 80;
+  unsigned int ip = 0;
+  char curl[512];
+  char sche[8],host[512],port[10],path[512],frag[512],quer[512],para[512];
+  int xsche,xhost,xport,xpath,xfrag,xquer,xpar,rel,slash;
+
+  if (base_url) {
+    ink_web_canonicalize_url(base_url, url, curl, 512);
+    // hack for our own web server!
+    if (curl[strlen(curl)-1] == 13)
+      curl[strlen(curl)-1] = 0;
+    if (curl[strlen(curl)-1] == 12)
+      curl[strlen(curl)-1] = 0;
+  } else
+    strcpy(curl,url);
+  if (!seen && seen_it(curl))
+    return -1;
+  ink_web_decompose_url(curl,sche,host,port,path,frag,quer,para,
+                        &xsche,&xhost,&xport,&xpath,&xfrag,&xquer,
+                        &xpar,&rel,&slash);
+  if (follow_same) {
+    if (!xhost || strcasecmp(host,current_host)) {
+      if (verbose) printf("skipping %s\n",curl);
+      return -1;
+    }
+  }
+  if (!unthrottled && throttling_connections()) {
+    defer_url(curl);
+    return -1;
+  }
+  if (proxy_port) {
+    iport = proxy_port;
+    ip = proxy_addr;
+  } else {
+    if (xport) iport = atoi(port);
+    if (!xhost) {
+      if (verbose) fprintf(stderr, "bad url '%s'\n", curl);
+      return -1;
+    }
+    ip = get_addr(host);
+    if ((int)ip == -1) {
+      if (verbose || verbose_errors)
+        fprintf(stderr, "bad host '%s'\n", host);
+      return -1;
+    }
+  }
+  int sock = -1;
+  if (keepalive)
+    sock = get_ka(ip);
+  if (sock < 0) {
+    sock = make_client(ip, iport);
+    fd[sock].keepalive = keepalive;
+  } else {
+    init_client(sock);
+    current_clients++;
+    fd[sock].keepalive--;
+  }
+  if (sock < 0)
+    panic("cannot make client\n");
+  char eheaders[16384];
+  *eheaders = 0;
+  int nheaders = extra_headers;
+  memset(&eheaders,0,16384);
+  if (nheaders>0) {
+    char * eh = eheaders;
+    if (!vary_user_agent) {
+      eh += sprintf(eh, "User-Agent: Mozilla/4.04 [en] (X11; I; Linux 2.0.31 i586)\r\n");
+      nheaders--;
+    }
+    if (nheaders>0)
+      eh += sprintf(eh, "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*\r\n");
+    while (--nheaders>0)
+      eh += sprintf(eh, "Extra-Header%d: a lot of junk for header %d\r\n",
+                    nheaders, nheaders);
+  }
+  if (proxy_port)
+    sprintf(fd[sock].req_header, "GET %s HTTP/1.0\r\n"
+            "%s"
+            "%s"
+            "Accept: */*\r\n"
+            "%s"
+            "\r\n",
+            curl,
+            reload_rate > drand48() ? "Pragma: no-cache\r\n":"",
+            fd[sock].keepalive?"Proxy-Connection: Keep-Alive\r\n":"",eheaders);
+  else
+    sprintf(fd[sock].req_header, "GET /%s%s%s%s%s HTTP/1.0\r\n"
+            "Host: %s\r\n"
+            "%s"
+            "%s"
+            "Accept: */*\r\n"
+            "%s"
+            "\r\n",
+            path,xquer?"?":"",quer,xpar?";":"",para,host,
+            reload_rate > drand48() ? "Pragma: no-cache\r\n":"",
+            fd[sock].keepalive?"Connection: Keep-Alive\r\n":"",eheaders);
+
+  if (verbose) printf("curl = '%s'\n",curl);
+  if (show_before) printf("%s\n", curl);
+  if (urlsdump_fp) fprintf(urlsdump_fp, "%s\n", curl);
+  if (show_headers) printf("Request to Proxy: {\n%s}\n",fd[sock].req_header);
+
+  {
+    const char * ext = strrchr(path, '.');
+
+    fd[sock].binary = 0;
+    if (ext) {
+      fd[sock].binary = !strncasecmp(ext, ".gif", 4) || !strncasecmp(ext, ".jpg", 4);
+    }
+  }
+
+  fd[sock].response_length = 0;
+  fd[sock].length = strlen(fd[sock].req_header);
+  if (!fd[sock].response)
+    fd[sock].response = (char*)malloc(MAX_BUFSIZE);
+  strcpy(fd[sock].base_url, curl);
+  return sock;
+}
+
+static FILE * get_defered_urls(FILE * fp) {
+  char url[512];
+  while (fgets(url,512,fp)) {
+    if (n_defered_urls > MAX_DEFERED_URLS -2)
+      return NULL;
+    char * e = (char*)memchr(url,'\n', 512);
+    if (e) *e = 0;
+    make_url_client(url);
+  }
+  return fp;
+}
+
+int main(int argc __attribute__((unused)), char *argv[]) {
+  /* for QA -- we want to be able to tail an output file
+   * during execution "nohup jtest -P pxy -p prt &"
+   */
+  setvbuf(stdout, (char*) NULL, _IOLBF, 0);
+
+  fd = (FD*)malloc(MAXFDS * sizeof(FD));
+  memset(fd,0,MAXFDS*sizeof(FD));
+  process_args(argument_descriptions, n_argument_descriptions, argv);
+  if (version) {
+    show_version();
+    exit(0);
+  }
+  if (!drand_seed)
+    srand48((long)time(NULL));
+  else
+    srand48((long)drand_seed);
+  if (zipf != 0.0)
+    build_zipf();
+  int max_fds = max_limit_fd();
+  if (verbose) printf ("maximum of %d connections\n",max_fds);
+  signal(SIGPIPE,SIG_IGN);
+  start_time = now = ink_get_hrtime_internal();
+
+  urls_mode = n_file_arguments || *urls_file;
+  nclients = client_rate? 0 : nclients;
+
+  if (!local_host[0])
+    ink_assert(!gethostname(local_host,80));
+  local_addr = get_addr(local_host);
+  if (!proxy_host[0])
+    strcpy(proxy_host, local_host);
+  if (proxy_port) {
+    proxy_addr = get_addr(proxy_host);
+  }
+
+  if (!urls_mode) {
+    if (compd_port) {
+      build_response();
+      open_server(compd_port, accept_compd);
+    } else {
+      if (!server_port)
+        server_port = proxy_port + 1000;
+      build_response();
+      if (!only_clients) {
+        for (int retry = 0 ; retry < 20 ; retry++) {
+          server_fd = open_server(server_port + retry, accept_read);
+          if (server_fd < 0) {
+            if (server_fd == -EADDRINUSE) {
+              continue;
+            }
+            panic_perror("open_server");
+          }
+          break;
+        }
+      }
+      bandwidth_test_to_go = bandwidth_test;
+      if (!only_server) {
+        if (proxy_port) {
+          for (int i = 0 ; i < nclients ; i++)
+            make_bfc_client(proxy_addr, proxy_port);
+        }
+      }
+    }
+  } else {
+    if (check_content)
+      build_response();
+    follow = follow_arg;
+    follow_same = follow_same_arg;
+    uniq_urls = new UrlHashTable;
+    defered_urls = (char**)malloc(sizeof(char*) * MAX_DEFERED_URLS);
+    average_over = 1;
+    if (*urlsdump_file) {
+      urlsdump_fp = fopen(urlsdump_file,"w");
+      if (!urlsdump_fp)
+        panic_perror("fopen urlsdump file");
+    }
+    if (*urls_file) {
+      FILE * fp = fopen(urls_file,"r");
+      if (!fp)
+        panic_perror("fopen urls file");
+      if (get_defered_urls(fp))
+        fclose(fp);
+      else
+        urls_fp = fp;
+    }
+    for (unsigned i = 0; i < n_file_arguments; i++) {
+      char sche[8],host[512],port[10],path[512],frag[512],quer[512],para[512];
+      int xsche,xhost,xport,xpath,xfrag,xquer,xpar,rel,slash;
+      ink_web_decompose_url(file_arguments[i],sche,host,port,
+                            path,frag,quer,para,
+                            &xsche,&xhost,&xport,&xpath,&xfrag,&xquer,
+                            &xpar,&rel,&slash);
+      if (xhost) {
+        strcpy(current_host,host);
+      }
+    }
+    for (unsigned i = 0; i < n_file_arguments ; i++) {
+      make_url_client(file_arguments[i]);
+    }
+  }
+
+  int t = now / HRTIME_SECOND;
+  int tclient = now / HRTIME_SECOND;
+  int start = now / HRTIME_SECOND;
+  while (1) {
+    if (poll_loop()) break;
+    int t2 = now / HRTIME_SECOND;
+    if (urls_fp && n_defered_urls < MAX_DEFERED_URLS - DEFERED_URLS_BLOCK - 2){
+      if (get_defered_urls(urls_fp)) {
+        fclose(urls_fp);
+        urls_fp = NULL;
+      }
+    }
+    if ((!urls_mode || client_rate) && interval && t + interval <= t2) {
+      t = t2;
+      interval_report();
+    }
+    if (t2 != tclient) {
+      for (int i = 0; i < client_rate * (t2 - tclient) ; i++)
+        if (!urls_mode)
+          make_bfc_client(proxy_addr, proxy_port);
+        else
+          undefer_url(true);
+      tclient = t2;
+    }
+    if (test_time)
+      if (t2 - start > test_time)
+        done();
+    if (is_done())
+      done();
+  }
+
+  return 0;
+}
+
+/*---------------------------------------------------------------------------*
+
+  int ink_web_decompose_url(...)
+
+  This function takes an input URL in src_url and splits it into its
+  component parts, including a scheme, host, port, path, fragment,
+  query, and parameters. you must pass in buffers for each of these.
+  If you pass in a NULL pointer for any of these, it will not be
+  returned.
+
+  The flags "sche_exists", etc. tell you if that part of the URL was
+  found. Each unfound part (with a non-NULL buffer) will also contain
+  the empty string '\0'.
+
+  The flag "relative_url" indicates that the src_url did not start
+  with a scheme. (This is kind of redundant with sche_exists but is
+  the general way to do it.)
+
+  The flag "leading_slash" indicates that the path began with a
+  leading slash.
+
+  mep - 4/15/96
+
+  *---------------------------------------------------------------------------*/
+
+static void ink_web_decompose_url(const char *src_url,
+                           char *sche, char *host, char *port, char *path,
+                           char *frag, char *quer, char *para,
+                           int *real_sche_exists, int *real_host_exists,
+                           int *real_port_exists, int *real_path_exists,
+                           int *real_frag_exists, int *real_quer_exists,
+                           int *real_para_exists,
+                           int *real_relative_url, int *real_leading_slash)
+  /*
+      * Input: src_url
+      * Outputs: every other argument
+      *
+      * You may pass in NULL pointers for any of: sche, host, port, path,
+      * frag, quer, or para, and they will not be returned.
+      *
+      *
+      * According to the HTML Sourcebook, a URL consists:
+      *
+      *   http://www.address.edu:80/path/subdir/file.ext?query;params#fragment
+      *   aaaa   bbbbbbbbbbbbbbb cc dddddddddddddddddddd eeeee ffffff gggggggg
+      *
+      * where
+      *   a = scheme
+      *   b = host
+      *   c = port
+      *   d = path
+      *   e = query
+      *   f = params
+      *   g = fragment
+      *
+      * Order of parsing is: fragment, scheme, host, port, params, query, path
+      *
+      * Note that the hostname:port part may contain something like:
+      *   user@pass:hostname:port
+      *   bbbbbbbbbbbbbbbbbb cccc
+      * i.e., the port is the thing after the _last_ colon in this part
+      *
+      */
+{
+  const char *start = src_url;
+  int len = strlen(src_url);
+  const char *end = start + len;
+  const char *ptr = start;
+  const char *ptr2, *temp, *temp2;
+  const char *sche1, *sche2;
+  const char *host1, *host2;
+  const char *port1, *port2;
+  const char *path1, *path2;
+  const char *frag1, *frag2;
+  const char *quer1, *quer2;
+  const char *para1, *para2;
+  bool fail = false;
+  int num;
+  int sche_exists, host_exists, port_exists, path_exists, frag_exists,
+    quer_exists, para_exists;
+  int leading_slash;
+
+  sche_exists = host_exists = port_exists = path_exists = 0;
+  frag_exists = quer_exists = para_exists = 0;
+  sche1 = sche2 = host1 = host2 = port1 = port2 = NULL;
+  path1 = path2 = frag1 = frag2 = quer1 = quer2 = para1 = para2 = NULL;
+  leading_slash = 0;
+
+  temp2 = ptr;
+  /* strip fragments "#" off the end */
+  while (ptr < end) {
+    if (*ptr == '#') {
+      frag1 = ptr+1;
+      frag2 = end;
+      frag_exists = 1;
+      end = ptr;
+    }
+    ptr++;
+  }
+  ptr = temp2;
+
+  /* decide if there is a sche, i.e. if it's an absolute url */
+  /* find end of sche */
+  fail = false;
+  temp2 = ptr;
+  while ((ptr < end) && !fail) {
+    if (*ptr == ':') {
+      sche1 = start;
+      sche2 = ptr;
+      ptr++; /* to continue to parse, skip the : */
+      sche_exists = 1;
+      fail = true;
+    } else if ((!ParseRules::is_alpha(*ptr) &&
+                (*ptr != '+') && (*ptr != '.') && (*ptr != '-')) ||
+               (ptr == end)) {
+      sche_exists = 0;
+      fail = true;
+    } else {
+      ptr++;
+    }
+  }
+  if (sche_exists == 0)
+    ptr = temp2;
+
+  /* find start of host */
+  fail = false;
+  temp2 = ptr;
+  while ((ptr < end-1) && !fail) {
+    if (*(ptr+0) == '/') {
+      if (*(ptr+1) == '/') {
+        host1 = ptr+2;
+        ptr += 2; /* skip "//" */
+        host_exists = 1;
+        fail = true;
+      } else {
+        /* this is the start of a path, not a host */
+        host_exists = 0;
+        fail = true;
+      }
+    } else {
+      ptr++;
+    }
+  }
+
+  /* find end of host */
+  if (host_exists == 1) {
+    while ((ptr < end) && (host2 == NULL)) {
+      if (*ptr == '/') {
+        /* "/" marks the start of the path */
+        host2 = ptr; /* just so we quit out of the loop */
+      } else {
+        ptr++;
+      }
+    }
+    if (host2 == NULL)
+      host2 = end;
+
+    if (host_exists == 1) {
+      temp = host2-1;
+      /* remove trailing dots from host */
+      while ((temp > host1) && (*temp == '.')) {
+        temp--;
+        host2--;
+      }
+
+      /* find start & end of port */
+      ptr2 = host1;
+      temp = host2;
+      while (ptr2 < temp) {
+        if (*ptr2 == ':') {
+          port1 = ptr2+1;
+          port2 = temp;
+          host2 = ptr2;
+          port_exists = 1;
+        }
+        ptr2++;
+      }
+    }
+  }
+  if (host_exists == 0)
+    ptr = temp2;
+
+  temp2 = ptr;
+  /* strip query "?" off the end */
+  while (ptr < end) {
+    if (*ptr == '?') {
+      quer1 = ptr+1;
+      quer2 = end;
+      quer_exists = 1;
+      end = ptr;
+    }
+    ptr++;
+  }
+  ptr = temp2;
+
+  temp2 = ptr;
+  /* strip parameters ";" off the end */
+  while (ptr < end) {
+    if (*ptr == ';') {
+      para1 = ptr+1;
+      para2 = end;
+      para_exists = 1;
+      end = ptr;
+    }
+    ptr++;
+  }
+  ptr = temp2;
+
+  /* the path is the remainder of the string */
+  /* don't include any leading slash */
+  if (ptr < end) {
+    if (*ptr == '/') {
+      leading_slash = 1;
+      path1 = ptr+1;
+      path2 = end;
+      path_exists = 1;
+    } else {
+      path1 = ptr;
+      path2 = end;
+      path_exists = 1;
+    }
+  }
+  else {
+    path1 = end;
+    path2 = end;
+    path_exists = 0;
+  }
+
+  if (sche_exists != 1)
+    *real_relative_url = 1;
+  else
+    *real_relative_url = 0;
+
+  /* extract strings for scheme, host, port, path, etc */
+
+  if (sche != NULL) {
+    if (sche_exists) {
+      num = sche2-sche1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(sche,sche1,num+1);
+      *(sche+num) = '\0';
+
+      /* make scheme lowercase */
+      char * p = sche;
+      while (*p) {
+        *p = ParseRules::ink_tolower(*p);
+        p++;
+      }
+    } else {
+      *sche = 0;
+    }
+  }
+
+  if (host != NULL) {
+    if (host_exists) {
+      num = host2-host1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(host,host1,num+1);
+      *(host+num) = '\0';
+
+      /* make hostname lowercase */
+      char * p = host;
+      while (*p) {
+        *p = ParseRules::ink_tolower(*p);
+        p++;
+      }
+    } else {
+      *host = 0;
+    }
+  }
+
+  if (port != NULL) {
+    if (port_exists) {
+      num = port2-port1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(port,port1,num+1);
+      *(port+num) = '\0';
+    } else {
+      *port = 0;
+    }
+  }
+
+  if (path != NULL) {
+    if (path_exists) {
+      num = path2-path1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(path,path1,num+1);
+      *(path+num) = '\0';
+    } else {
+      *path = 0;
+    }
+  }
+
+  if (frag != NULL) {
+    if (frag_exists) {
+      num = frag2-frag1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(frag,frag1,num+1);
+      *(frag+num) = '\0';
+    } else {
+      *frag = 0;
+    }
+  }
+
+  if (quer != NULL) {
+    if (quer_exists) {
+      num = quer2-quer1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(quer,quer1,num+1);
+      *(quer+num) = '\0';
+    } else {
+      *quer = 0;
+    }
+  }
+
+  if (para != NULL) {
+    if (para_exists) {
+      num = para2-para1;
+      if (num > MAX_URL_LEN-1) num = MAX_URL_LEN-1;
+      strncpy(para,para1,num+1);
+      *(para+num) = '\0';
+    } else {
+      *para = 0;
+    }
+  }
+  *real_sche_exists = sche_exists;
+  *real_host_exists = host_exists;
+  *real_port_exists = port_exists;
+  *real_path_exists = path_exists;
+  *real_frag_exists = frag_exists;
+  *real_quer_exists = quer_exists;
+  *real_para_exists = para_exists;
+  *real_leading_slash = leading_slash;
+} /* End ink_web_decompose_url */
+
+#if 0 /* debugging */
+/*---------------------------------------------------------------------------*
+
+  void ink_web_dump_url_components(FILE *fp, InkWebURLComponents *c)
+
+  This routine writes a readable representation of the URL components
+  pointed to by <c> on the file pointer <fp>.
+
+  *---------------------------------------------------------------------------*/
+
+static void ink_web_dump_url_components(FILE *fp, InkWebURLComponents *c)
+{
+  fprintf(fp,"sche:'%s', exists %d\n",c->sche,c->sche_exists);
+  fprintf(fp,"host:'%s', exists %d\n",c->host,c->host_exists);
+  fprintf(fp,"port:'%s', exists %d\n",c->port,c->port_exists);
+  fprintf(fp,"path:'%s', exists %d\n",c->path,c->path_exists);
+  fprintf(fp,"quer:'%s', exists %d\n",c->quer,c->quer_exists);
+  fprintf(fp,"frag:'%s', exists %d\n",c->frag,c->frag_exists);
+  fprintf(fp,"para:'%s', exists %d\n",c->para,c->para_exists);
+
+  fprintf(fp,"rel_url:%d\n",c->rel_url);
+  fprintf(fp,"leading_slash:%d\n",c->leading_slash);
+
+  fprintf(fp,"\n");
+} /* End ink_web_dump_url_components */
+
+#endif
+
+/*---------------------------------------------------------------------------*
+
+  int ink_web_canonicalize_url(...)
+
+  Inputs: base_url, emb_url, max_dest_url_len.
+  Output: dest_url.
+
+  This function takes a base url and an embedded url, and produces an
+  absolute url as specified in RFC 1808, "Relative Uniform Resource
+  Locators".
+
+  A base url is often the url of a document and an embedded url is an
+  incomplete reference to a secondary document, often in the same
+  directory. Together they completely specify an absolute reference to
+  the secondary document.
+
+  For instance,
+     base_url "http://inktomi.com/~mep"
+     emb_url: "path1/path2/foo.html"
+
+  becomes
+
+     dest_url: "http://inktomi.com/~mep/path1/path2/foo.html"
+
+  This function also applies "ink_web_escapify()" to the dest_url.
+
+  You must supply the buffer dest_url and its size, max_dest_url_len.
+
+  mep - 4/15/96
+
+  *---------------------------------------------------------------------------*/
+
+static void ink_web_canonicalize_url(const char *base_url, const char *emb_url, char *dest_url,
+                              int max_dest_url_len)
+{
+  int doff;
+  InkWebURLComponents base,emb;
+  char temp[MAX_URL_LEN + 1],temp2[MAX_URL_LEN + 1];
+  int leading_slash,use_base_sche,use_base_host,
+    use_base_path,use_base_quer,use_base_para,use_base_frag;
+  int host_last = 0;
+
+  doff = 0;
+
+  /* Initialize Component Values */
+
+  leading_slash = 0;
+
+  /* Decompose The Base And Embedded URLs */
+
+  ink_web_decompose_url_into_structure(base_url,&base);
+  ink_web_decompose_url_into_structure(emb_url,&emb);
+
+  /* Print Out Components */
+
+  /* Select Which Components To Use From Base & Embedded URL */
+
+  dest_url[0] = '\0';
+
+  use_base_sche = 1;
+  use_base_host = 1;
+  use_base_path = 0;
+  use_base_quer = 0;
+  use_base_para = 0;
+  use_base_frag = 0;
+
+  if (!emb.sche_exists && !emb.path_exists &&
+      !emb.host_exists && !emb.quer_exists &&
+      !emb.frag_exists && !emb.para_exists)
+  {
+    /* 2a: if the embedded URL is empty, take everything from the base */
+
+    use_base_sche = 1;
+    use_base_host = 1;
+    use_base_path = 1;
+    use_base_quer = 1;
+    use_base_para = 1;
+    use_base_frag = 1;
+  }
+  else if (emb.sche_exists &&
+           ((strcasecmp(emb.sche,"telnet") == 0) ||
+            (strcasecmp(emb.sche,"mailto") == 0) ||
+            (strcasecmp(emb.sche,"news") == 0)))
+  {
+    const char * p = emb_url;
+    char * q = dest_url;
+    while (*p) {
+      *q++ = ParseRules::ink_tolower(*p++);
+    }
+    return;
+  }
+  else if (emb.sche_exists &&
+           !(((strcasecmp(emb.sche,"http") == 0) && !emb.host_exists)))
+
+  {
+    /* 2b: not good enough, because things like 'http:overview.html' */
+
+    use_base_sche = 0;
+    use_base_host = 0;
+    use_base_path = 0;
+    use_base_quer = 0;
+    use_base_para = 0;
+    use_base_frag = 0;
+  }
+  else
+  {
+    use_base_sche = 1;
+
+    /* step 3 - if emb_host non-empty, skip to 7 */
+
+    if (emb.host_exists)
+    {
+      use_base_host = 0;
+    }
+    else
+    {
+      use_base_host = 1;
+
+      /* step 4 - if emb_path preceeded by slash, skip to 7 */
+
+      if (emb.leading_slash != 1)
+      {
+        /* step 5 */
+
+        if (!emb.path_exists)
+        {
+          use_base_path = 1;
+
+          if (emb.para_exists)
+          {
+            /* 5a - if emb_para non-empty, skip to 7 */
+
+            use_base_para = 0;
+          }
+          else
+          {
+            /* otherwise use base_para */
+
+            use_base_para = 1;
+
+            if (emb.quer_exists)
+            {
+              /* 5b - if emb_quer non-empty, skip to 7 */
+
+              use_base_quer = 0;
+            }
+            else
+            {
+              /* otherwise use base query */
+
+              use_base_quer = 1;
+            }
+          }
+        }
+        else
+        {
+          use_base_path = 0;
+
+          /* step 6 */
+          /* create combined path */
+          /* remove last segment of base_path */
+
+          remove_last_seg(base.path, temp);
+          remove_multiple_slash(temp, temp2);
+
+          /* append emb_path */
+
+          sprintf(temp2,"%s%s",temp2,emb.path);
+
+          /* remove "." and ".." */
+
+          ink_web_remove_dots(temp2,emb.path,
+                              &leading_slash,MAX_URL_LEN);
+          emb.path_exists = 1;
+          emb.leading_slash = base.leading_slash;
+        } /* 5 */
+      } /* 4 */
+    } /* 3 */
+  }
+
+  /* step 7 - combine parts */
+
+  if (use_base_sche)
+  {
+    if (base.sche_exists)
+    {
+      append_string(dest_url, base.sche, &doff, MAX_URL_LEN);
+      append_string(dest_url, ":", &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+  else
+  {
+    if (emb.sche_exists)
+    {
+      append_string(dest_url, emb.sche, &doff, MAX_URL_LEN);
+      append_string(dest_url, ":", &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+
+  if (use_base_host)
+  {
+    if (base.host_exists)
+    {
+      append_string(dest_url, "//", &doff, MAX_URL_LEN);
+      append_string(dest_url, base.host, &doff, MAX_URL_LEN);
+      if ((base.port_exists) && (strcmp(base.port,"80") != 0))
+      {
+        append_string(dest_url, ":", &doff, MAX_URL_LEN);
+        append_string(dest_url, base.port, &doff, MAX_URL_LEN);
+      }
+      host_last = 1;
+    }
+  }
+  else
+  {
+    if (emb.host_exists)
+    {
+      append_string(dest_url, "//", &doff, MAX_URL_LEN);
+      append_string(dest_url, emb.host, &doff, MAX_URL_LEN);
+      if ((emb.port_exists) && (strcmp(emb.port,"80") != 0))
+      {
+        append_string(dest_url, ":", &doff, MAX_URL_LEN);
+        append_string(dest_url, emb.port, &doff, MAX_URL_LEN);
+      }
+      host_last = 1;
+    }
+  }
+
+  if (use_base_path)
+  {
+    if (base.path_exists)
+    {
+      if (base.leading_slash)
+        append_string(dest_url, "/", &doff, MAX_URL_LEN);
+
+      ink_web_unescapify_string(temp, base.path, MAX_URL_LEN);
+      ink_web_escapify_string(base.path, temp, max_dest_url_len);
+      append_string(dest_url, base.path, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+  else
+  {
+    if (emb.path_exists)
+    {
+      if (emb.leading_slash)
+        append_string(dest_url, "/", &doff, MAX_URL_LEN);
+      ink_web_unescapify_string(temp, emb.path, MAX_URL_LEN);
+      ink_web_escapify_string(emb.path, temp, max_dest_url_len);
+      append_string(dest_url, emb.path, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+
+  if (use_base_para)
+  {
+    if (base.para_exists)       {
+      append_string(dest_url, ";", &doff, MAX_URL_LEN);
+      append_string(dest_url, base.para, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+  else
+  {
+    if (emb.para_exists)
+    {
+      append_string(dest_url, ";", &doff, MAX_URL_LEN);
+      append_string(dest_url, emb.para, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+
+  if (use_base_quer)
+  {
+    if (base.quer_exists)
+    {
+      append_string(dest_url, "?", &doff, MAX_URL_LEN);
+      append_string(dest_url, base.quer, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+  else
+  {
+    if (emb.quer_exists)
+    {
+      append_string(dest_url, "?", &doff, MAX_URL_LEN);
+      append_string(dest_url, emb.quer, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+
+  if (use_base_frag)
+  {
+    if (base.frag_exists)
+    {
+      append_string(dest_url, "#", &doff, MAX_URL_LEN);
+      append_string(dest_url, base.frag, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+  else {
+    if (emb.frag_exists)
+    {
+      append_string(dest_url, "#", &doff, MAX_URL_LEN);
+      append_string(dest_url, emb.frag, &doff, MAX_URL_LEN);
+      host_last = 0;
+    }
+  }
+
+  if (host_last) append_string(dest_url, "/", &doff, MAX_URL_LEN);
+}
+
+/*---------------------------------------------------------------------------*
+
+  int ink_web_decompose_url_into_structure(char *url, InkWebURLComponents *c)
+
+  This routine takes a URL and violently tears apart its molecular structure,
+  placing the URL components in the InkWebURLComponents structure pointed to
+  by <c>.  Flags in the structure indicate whether individual fields are
+  valid or not.
+
+  *---------------------------------------------------------------------------*/
+
+static void ink_web_decompose_url_into_structure(const char *url, InkWebURLComponents *c)
+{
+  ink_web_decompose_url(url,
+                        c->sche, c->host, c->port,
+                        c->path, c->frag, c->quer, c->para,
+                        &(c->sche_exists), &(c->host_exists),
+                        &(c->port_exists), &(c->path_exists),
+                        &(c->frag_exists), &(c->quer_exists),
+                        &(c->para_exists), &(c->rel_url),
+                        &(c->leading_slash));
+
+  c->is_path_name = 1;
+  if (c->sche_exists &&
+      ((strcasecmp(c->sche,"mailto") == 0) ||
+       (strcasecmp(c->sche,"telnet") == 0) ||
+       (strcasecmp(c->sche,"news") == 0)))
+  {
+    c->is_path_name = 0;
+  }
+} /* End ink_web_decompose_url_into_structure */
+
+/*---------------------------------------------------------------------------*
+
+  int ink_web_remove_dots(char *src, char *dest, int *leadingslash,
+                          int max_dest_len)
+
+  This routine takes a path and interprets "." and ".." segments, returning
+  an appropriately parsed path. It is a warning to pass a path that resolves
+  to a leading "..". Inputs are the src path and the length of the dest
+  buffer. Return values are a string written into the dest buffer and
+  the leadingslash flag, which indicates if the src (and the dest) have a
+  leading slash, and are therefore not relative paths.
+
+  Basically, these sequences: "<a><path-segment>..<b>" and "<a>.<b>" both
+  turn into "<a><b>" where <a> is beginning-or-string or a complete segment,
+  and <b> is end-of-string or a complete segment.
+
+  e.g.
+  path1/../path2  -> path2
+  /path1/../path2 -> /path2
+  /path1/path2/.. -> /path1
+  path1/./path2   -> path1/path2
+  path1/path2/.   -> path1/path2
+  ./path1/path2   -> path1/path2
+  ./path1         -> path1
+  /./path1        -> /path1
+
+  It is also a warning to pass a path whose returned value needs to be
+  truncated to fit into max_dest_len characters.
+
+  mep - 4/15/96
+
+  *---------------------------------------------------------------------------*/
+
+/* types of path segment */
+#define NORMAL 0
+#define DOT    1
+#define DOTDOT 2
+#define ZAP    3
+#define ERROR  4
+
+/* We statically allocate this many - if we need more, we dynamically */
+/* allocate them. */
+#define STATIC_PATH_LEVELS 256
+
+static int ink_web_remove_dots(char *src, char *dest, int *leadingslash,
+                        int max_dest_len)
+{
+  char *ptr, *end;
+  int free_flag = 0;
+  int scount, segstart, zapflag, doff, num;
+  int temp, i;
+  int error = 0;
+
+  /* offsets to each path segment */
+  char **seg, *segstatic[STATIC_PATH_LEVELS];
+
+  /* type of each segment is a ".." */
+  int *type, typestatic[STATIC_PATH_LEVELS];
+
+  *leadingslash = 0;
+
+  /* first quickly count the "/"s to get lower bound on # of path levels */
+  ptr = src;
+  end = src + strlen(src);
+  scount = 0;
+  while (ptr < end) {
+    if (*ptr++ == '/') scount++;
+  }
+  scount++; /* adding one to this makes it a lower bound for any case */
+
+  if (scount <= STATIC_PATH_LEVELS) {
+    /* we can use the statically allocated ones */
+    seg = segstatic;
+    type = typestatic;
+  } else {
+    /* too many levels of path - must dynamically allocate */
+    seg = (char**)malloc(scount*sizeof(char *));
+    type = (int*)malloc(scount*sizeof(int));
+    free_flag = 1;
+  }
+
+  /* Determine starts of each path segment.
+   * A segment is defined as:
+   * "foo/" in the string "<a>foo/<b>", where:
+   *    <a> is <start-of-string>, or a single "/"
+   *    <b> is <end-of-string>, or another segment.
+   * "foo" can be "." or ".."
+   * Makes my head hurt just to think about it.
+   *
+   */
+  ptr = src; scount = 0;
+  /* a segstart starts with start-of-string or a '/' */
+  segstart = 1;
+  while (ptr < end) {
+    if (*ptr == '/') {
+      /* include leading '/' in first segment */
+      if (ptr == src)
+        *leadingslash = 1;
+      segstart = 1;
+    } else if (segstart == 1) {
+      seg[scount++] = ptr;
+      segstart = 0;
+    } else {
+      /* this is neither a "/" nor the first char of another segment */
+    }
+    ptr++;
+  }
+  /* Now scount is an accurate count of the segments we have found, */
+  /* not just that lower bound we quickly got before */
+
+  /* now figure out if segments are "..", ".", or normal */
+  /* ZAP the "."s in place */
+  for(i=0;i<scount;i++) {
+    ptr = seg[i];
+    if (*ptr == '.') {
+      if ((ptr == end-1) || (*(ptr+1) == '/')) {
+        /* it's a "." */
+        type[i] = DOT;
+      } else if (((ptr == end-2) && (*(ptr+1) == '.')) ||
+                 ((ptr < end-2) && (*(ptr+1) == '.') && (*(ptr+2) == '/'))) {
+        /* it's a ".." */
+        type[i] = DOTDOT;
+      } else {
+        type[i] = NORMAL;
+      }
+    } else {
+      /* it's not a special segment */
+      type[i] = NORMAL;
+    }
+  }
+  /* now ZAP each DOT, and each NORMAL following a DOTDOT */
+  for(i=0;i<scount;i++) {
+    if (type[i] == DOT) {
+      type[i] = ZAP;
+    } else if (type[i] == DOTDOT) {
+      /* got a DOTDOT, count back to find first NORMAL segment */
+      temp = i-1;
+      zapflag = 0;
+      while ((temp >= 0) && (zapflag == 0)) {
+        if (type[temp] == NORMAL) {
+          /* found a NORMAL one, ZAP this pair */
+          type[temp] = ZAP;
+          type[i] = ZAP;
+          zapflag = 1;
+        } else {
+          temp--;
+        }
+      }
+      if (zapflag == 0) {
+        type[i] = ERROR;
+        error = 1;
+      }
+    }
+  }
+
+  /* now write out the fixed path */
+  doff = 0;
+  *dest = 0;
+  if (*leadingslash) {
+    strncpy(dest+doff,"/",2);
+    doff++;
+  }
+  for(i=0;i<scount;i++) {
+    if ((type[i] == NORMAL) || (type[i] == ERROR)) {
+      if (i==scount-1) {
+        num = (int)(end-seg[i]);
+      } else {
+        num = (int)(seg[i+1]-seg[i]);
+      }
+
+      /* truncate if nec. */
+      if (doff+num > max_dest_len) {
+        num = max_dest_len-doff;
+      }
+
+      strncpy(dest+doff,seg[i],num+1);
+      doff += num;
+    } else if (type[i] == DOT) {
+      /* if you get here, it indicates an algorithmic error in this routine */
+      panic("ink_web_remove_dots - single dot remaining in string");
+    } else if (type[i] == DOTDOT) {
+      /* if you get here, it indicates an algorithmic error in this routine */
+      panic("ink_web_remove_dots - double dot remaining in string");
+    }
+  }
+
+  if (free_flag) {
+    free(seg);
+    free(type);
+  }
+
+  return(error);
+}
+
+/*---------------------------------------------------------------------------*
+
+  int ink_web_unescapify_string(...)
+
+  Takes a string that has has special characters turned to %AB format
+  and converts them back to single special characters. See
+  ink_web_escapify_string() above.
+
+  mep - 4/15/96
+
+  *---------------------------------------------------------------------------*/
+
+static int ink_web_unescapify_string(char *dest_in, char *src_in, int max_dest_len)
+{
+  char *src = src_in;
+  char *dest = dest_in;
+  const char *c1;
+  const char *c2;
+  int quit = 0;
+  int dcount = 0;
+  int num = 0;
+  int dig1 = 0;
+  int dig2 = 0;
+
+  while ((*src != 0) && !quit) {
+    if (*src == '%') {
+      /* found start of an escape sequence, unescape it */
+      if ((*(src+1) != 0) && (*(src+2) != 0)) {
+        c1 = strchr(hexdigits,*(src+1));
+        c2 = strchr(hexdigits,*(src+2));
+        if ((c1 == NULL) || (c2 == NULL)) {
+          ink_warning("got escape sequence but no hex digits in:%s", src_in);
+          if (dcount+1 < max_dest_len) {
+            *(dest++) = *src;
+            dcount++;
+          } else {
+            ink_warning("ink_web_unescapify_string had to truncate:%s",src_in);
+            quit = 1;
+          }
+        } else {
+          /* check if hex digits lowercase */
+          dig1 = (int)(c1-hexdigits);
+          dig2 = (int)(c2-hexdigits);
+          if (dig1 > 15) dig1 -= 6;
+          if (dig2 > 15) dig2 -= 6;
+          /* this is the ascii char */
+          num = 16*dig1+dig2;
+
+          if (!strchr(dontunescapify,num)) {
+            /* unescapify the escape sequence you found */
+            if (dcount+1 < max_dest_len) {
+              *(dest++) = num;
+              dcount++;
+              src += 2;
+            } else {
+              ink_warning("ink_web_escapify_string had to truncate:%s",src_in);
+              quit = 1;
+            }
+          } else {
+            /* don't unescapify these, just pass the escape sequence */
+            if (dcount+3 < max_dest_len) {
+              *(dest++) = '%';
+              *(dest++) = hexdigits[dig1];
+              *(dest++) = hexdigits[dig2];
+              dcount += 3;
+              src += 2;
+            } else {
+              ink_warning("ink_web_unescapify_string had to truncate:%s",
+                          src_in);
+              quit = 1;
+            }
+          }
+        }
+      } else {
+        ink_warning("got escape sequence but no hex digits (too near end of string) in:%s", src_in);
+        if (dcount+1 < max_dest_len) {
+          *dest++ = *src;
+          dcount++;
+        } else {
+          ink_warning("ink_web_unescapify_string had to truncate:%s",src_in);
+          quit = 1;
+        }
+      }
+    } else {
+      if (dcount+1 < max_dest_len) {
+        *dest++ = *src;
+        dcount++;
+      } else {
+        ink_warning("ink_web_unescapify_string had to truncate:%s",src_in);
+        quit = 1;
+      }
+    }
+    src++;
+  }
+  /* terminate string */
+  if (dcount < max_dest_len)
+    *dest = 0;
+  else
+    *(dest_in+max_dest_len) = 0;
+
+  return(quit);
+}
+
+/*---------------------------------------------------------------------------*
+
+  int ink_web_escapify_string(...)
+
+  This functions takes an input src_in and converts all special
+  characters to %<hexdigit><hexdigit> form.
+
+  Special characters are everything that is not:
+  #$-_.+!*'(),;/?:@=&   or
+  <alpha-char>  or
+  <digit-char>
+
+  e.g. "abcd fghi[klmn^" -> "abcd%20fghi%5Bklmn%5E"
+
+  You must supply the buffer dest_in, with a size of max_dest_len. If
+  the unescapified string grows larger than this, it will be truncated
+  and you will get a warning.
+
+  mep - 4/15/96
+
+  *---------------------------------------------------------------------------*/
+
+static int ink_web_escapify_string(char *dest_in, char *src_in, int max_dest_len) {
+  int d1,d2;
+  char *src = src_in;
+  char *dest = dest_in;
+  int dcount = 0;
+  int quit = 0;
+
+  while ((*src != 0) && (dcount < max_dest_len) && (quit == 0)) {
+    if ((char*)memchr(dontescapify,*src,INT_MAX) ||
+        ParseRules::is_alpha(*src) ||
+        ParseRules::is_digit(*src)) {
+      /* this is regular character, don't escapify it */
+      if (dcount+1 < max_dest_len) {
+        *dest++ = *src;
+        dcount++;
+      } else {
+        ink_warning("ink_web_escapify_string (1) had to truncate:'%s'",src_in);
+        quit = 1;
+      }
+    } else {
+      d1 = *src/16;
+      d2 = *src%16;
+      if (dcount+3 < max_dest_len) {
+        *dest++ = '%';
+        *dest++ = hexdigits[d1];
+        *dest++ = hexdigits[d2];
+        /*      fprintf(stderr,"%d %d  %c %c\n",d1,d2,hexdigits[d1],hexdigits[d2]);*/
+        dcount += 3;
+      } else {
+        ink_warning("ink_web_escapify_string (2) had to truncate:'%s'",src_in);
+        quit = 1;
+      }
+    }
+    src++;
+  }
+  /* terminate string */
+  if (dcount < max_dest_len)
+    *dest = 0;
+  else
+    *(dest_in+max_dest_len-1) = 0;
+
+  return(quit);
+}
diff --git a/tools/lighttpd_mod_generator/Makefile b/tools/lighttpd_mod_generator/Makefile
new file mode 100644
index 00000000..c1ce5be5
--- /dev/null
+++ b/tools/lighttpd_mod_generator/Makefile
@@ -0,0 +1,35 @@
+#
+# Makefile for building the lighttpd mod_generator enabled version
+# of lighttpd.
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+VERSION=1.4.35
+
+all: mod_generator.so
+
+lighttpd:
+	if [ ! -f lighttpd-$(VERSION).tar.bz2 ]; then wget http://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-$(VERSION).tar.bz2; fi
+	if [ ! -d lighttpd-$(VERSION) ]; then tar xjf lighttpd-$(VERSION).tar.bz2; fi
+	cd lighttpd-$(VERSION); ./configure --prefix=/usr/local --without-bzip2
+	cd lighttpd-$(VERSION); gmake
+
+mod_generator.so: mod_generator.c lighttpd
+	gcc -shared -DHAVE_CONFIG_H -DLIBRARY_DIR=\"/usr/local/lib64\" -DSBIN_DIR=\"/usr/local/sbin\" -I. -I.. -D_REENTRANT -D__EXTENSIONS__ -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGE_FILES -g -O2 -Wall -W -Wshadow -pedantic -std=gnu99 -MTmod_scgi.lo -MD -MP mod_generator.c  -fPIC -DPIC -I lighttpd-$(VERSION)/src/ -I lighttpd-$(VERSION)/ -o mod_generator.so
+
+clean:
+	rm -rf lighttpd-$(VERSION).tar.bz2 lighttpd-$(VERSION) mod_generator.so
diff --git a/tools/lighttpd_mod_generator/README b/tools/lighttpd_mod_generator/README
new file mode 100644
index 00000000..b598431e
--- /dev/null
+++ b/tools/lighttpd_mod_generator/README
@@ -0,0 +1,25 @@
+Module that can be used to create dynamic http responses.  Good for using as an origin server when benchmarking.
+
+Format of the URL:
+http://server:port/bytes-id-sleeptime-{cache|no_cache}
+
+bytes            - number of bytes for the response body
+id               - arbitrary id that can be used for uniqueness
+sleeptime        - milliseconds lighttpd should sleep before sending a response
+{cache|no_cache} - add headers to make the response cacheable or not
+
+Example URLs:
+URL to test the caching of ATS, 1KB body and don't delay the response
+http://myserver.com:8080/1024-123-0-cache
+
+URL to test the proxying of ATS, 2KB body and delay the response for 1ms
+http://myserver.com:8080/2048-123-1-no_cache
+
+Version 1.4.30_1 (3/28/12, bcall)
+ - Updated version of lighttpd
+
+Version 1.4.21_1 (5/9/11, bcall)
+ - Updated version of lighttpd
+
+Version 1.4.21 (2/19/09, bcall)
+ - First version of lighttpd for YTS.
diff --git a/tools/lighttpd_mod_generator/ats_lighttpd_benchmark b/tools/lighttpd_mod_generator/ats_lighttpd_benchmark
new file mode 100755
index 00000000..af6d7c9c
--- /dev/null
+++ b/tools/lighttpd_mod_generator/ats_lighttpd_benchmark
@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+PREFIX=/usr/local
+
+for i in {1..24}; do echo $i; sudo $PREFIX/bin/lighttpd -f $PREFIX/etc/lighttpd/lighttpd_$i.conf; done
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd.conf b/tools/lighttpd_mod_generator/conf/lighttpd.conf
new file mode 100644
index 00000000..7ba50055
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd.conf
@@ -0,0 +1,36 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+accesslog.filename          = "/usr/local/var/log/access.log"
+server.errorlog             = "/usr/local/var/log/error.log"
+
+server.port = 8080
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_1.conf b/tools/lighttpd_mod_generator/conf/lighttpd_1.conf
new file mode 100644
index 00000000..ecd000fe
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_1.conf
@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_10.conf b/tools/lighttpd_mod_generator/conf/lighttpd_10.conf
new file mode 100644
index 00000000..5807850f
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_10.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81010
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_11.conf b/tools/lighttpd_mod_generator/conf/lighttpd_11.conf
new file mode 100644
index 00000000..2c17bb3e
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_11.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81011
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_12.conf b/tools/lighttpd_mod_generator/conf/lighttpd_12.conf
new file mode 100644
index 00000000..473ffcc3
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_12.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81012
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_13.conf b/tools/lighttpd_mod_generator/conf/lighttpd_13.conf
new file mode 100644
index 00000000..480e4277
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_13.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81013
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_14.conf b/tools/lighttpd_mod_generator/conf/lighttpd_14.conf
new file mode 100644
index 00000000..5f627b4b
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_14.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81014
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_15.conf b/tools/lighttpd_mod_generator/conf/lighttpd_15.conf
new file mode 100644
index 00000000..9a9b4d65
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_15.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81015
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_16.conf b/tools/lighttpd_mod_generator/conf/lighttpd_16.conf
new file mode 100644
index 00000000..b8e43d73
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_16.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81016
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_17.conf b/tools/lighttpd_mod_generator/conf/lighttpd_17.conf
new file mode 100644
index 00000000..9f249d37
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_17.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81017
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_18.conf b/tools/lighttpd_mod_generator/conf/lighttpd_18.conf
new file mode 100644
index 00000000..37bf622e
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_18.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81018
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_19.conf b/tools/lighttpd_mod_generator/conf/lighttpd_19.conf
new file mode 100644
index 00000000..b0e1c73f
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_19.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81019
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_2.conf b/tools/lighttpd_mod_generator/conf/lighttpd_2.conf
new file mode 100644
index 00000000..79e48ddf
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_2.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8102
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_20.conf b/tools/lighttpd_mod_generator/conf/lighttpd_20.conf
new file mode 100644
index 00000000..ae9b5715
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_20.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81020
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_21.conf b/tools/lighttpd_mod_generator/conf/lighttpd_21.conf
new file mode 100644
index 00000000..6d86b5e3
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_21.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81021
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_22.conf b/tools/lighttpd_mod_generator/conf/lighttpd_22.conf
new file mode 100644
index 00000000..f6ed2b0d
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_22.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81022
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_23.conf b/tools/lighttpd_mod_generator/conf/lighttpd_23.conf
new file mode 100644
index 00000000..98d937f4
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_23.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81023
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_24.conf b/tools/lighttpd_mod_generator/conf/lighttpd_24.conf
new file mode 100644
index 00000000..5765be64
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_24.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 81024
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_3.conf b/tools/lighttpd_mod_generator/conf/lighttpd_3.conf
new file mode 100644
index 00000000..db154e44
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_3.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8103
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_4.conf b/tools/lighttpd_mod_generator/conf/lighttpd_4.conf
new file mode 100644
index 00000000..48b4e036
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_4.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8104
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_5.conf b/tools/lighttpd_mod_generator/conf/lighttpd_5.conf
new file mode 100644
index 00000000..c2f67614
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_5.conf
@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8105
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_6.conf b/tools/lighttpd_mod_generator/conf/lighttpd_6.conf
new file mode 100644
index 00000000..3859813e
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_6.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8106
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_7.conf b/tools/lighttpd_mod_generator/conf/lighttpd_7.conf
new file mode 100644
index 00000000..b59e56f8
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_7.conf
@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8107
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_8.conf b/tools/lighttpd_mod_generator/conf/lighttpd_8.conf
new file mode 100644
index 00000000..935286e1
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_8.conf
@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8108
diff --git a/tools/lighttpd_mod_generator/conf/lighttpd_9.conf b/tools/lighttpd_mod_generator/conf/lighttpd_9.conf
new file mode 100644
index 00000000..88ff31c5
--- /dev/null
+++ b/tools/lighttpd_mod_generator/conf/lighttpd_9.conf
@@ -0,0 +1,32 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+server.document-root = "/usr/local/share/lighttpd"
+server.modules += ( "mod_redirect", "mod_accesslog", "mod_generator")
+
+url.redirect = (
+  "^/bcall"   => "http://test.example.com/1k.html"
+)
+
+mimetype.assign = (
+  ".html" => "text/html", 
+  ".txt" => "text/plain",
+  ".jpg" => "image/jpeg",
+  ".png" => "image/png"
+)
+index-file.names = ( "index.html" )
+
+server.port = 8109
diff --git a/tools/lighttpd_mod_generator/mod_generator.c b/tools/lighttpd_mod_generator/mod_generator.c
new file mode 100644
index 00000000..fe42aa46
--- /dev/null
+++ b/tools/lighttpd_mod_generator/mod_generator.c
@@ -0,0 +1,357 @@
+/** @file
+
+    Main file for the tstop application.
+
+    @section license License
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "base.h"
+#include "log.h"
+#include "buffer.h"
+
+#include "plugin.h"
+
+#include "response.h"
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+
+/**
+ * this is a generator for a lighttpd plugin
+ *
+ * just replaces every occurance of 'generator' by your plugin name
+ *
+ * e.g. in vim:
+ *
+ *   :%s/generator/myhandler/
+ *
+ */
+
+static char static_data[8192];
+
+/* plugin config for all request/connections */
+
+typedef struct {
+  array *match;
+} plugin_config;
+
+typedef struct {
+  PLUGIN_DATA;
+
+  buffer *match_buf;
+  
+  plugin_config **config_storage;
+  
+  plugin_config conf;
+
+} plugin_data;
+
+typedef struct {
+  size_t foo;
+} handler_ctx;
+
+// static handler_ctx * handler_ctx_init() {
+// 	handler_ctx * hctx;
+
+// 	hctx = calloc(1, sizeof(*hctx));
+
+// 	return hctx;
+// }
+
+// static void handler_ctx_free(handler_ctx *hctx) {
+
+// 	free(hctx);
+// }
+
+/* init the plugin data */
+INIT_FUNC(mod_generator_init) {
+  plugin_data *p;
+
+  p = calloc(1, sizeof(*p));
+
+  p->match_buf = buffer_init();
+
+  return p;
+}
+
+/* detroy the plugin data */
+FREE_FUNC(mod_generator_free) {
+  plugin_data *p = p_d;
+
+  UNUSED(srv);
+
+  if (!p) return HANDLER_GO_ON;
+
+  if (p->config_storage) {
+    size_t i;
+
+    for (i = 0; i < srv->config_context->used; i++) {
+      plugin_config *s = p->config_storage[i];
+
+      if (!s) continue;
+
+      array_free(s->match);
+
+      free(s);
+    }
+    free(p->config_storage);
+  }
+
+  buffer_free(p->match_buf);
+
+  free(p);
+
+  return HANDLER_GO_ON;
+}
+
+/* handle plugin config and check values */
+
+SETDEFAULTS_FUNC(mod_generator_set_defaults) {
+  plugin_data *p = p_d;
+  size_t i = 0;
+
+  config_values_t cv[] = {
+    { "generator.array",             NULL, T_CONFIG_ARRAY, T_CONFIG_SCOPE_CONNECTION },       /* 0 */
+    { NULL,                         NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
+  };
+
+  if (!p) return HANDLER_ERROR;
+
+  p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *));
+
+  for (i = 0; i < srv->config_context->used; i++) {
+    plugin_config *s;
+
+    s = calloc(1, sizeof(plugin_config));
+    s->match    = array_init();
+
+    cv[0].destination = s->match;
+
+    p->config_storage[i] = s;
+
+    if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) {
+      return HANDLER_ERROR;
+    }
+  }
+
+  return HANDLER_GO_ON;
+}
+
+#define PATCH(x)                                \
+  p->conf.x = s->x;
+static int mod_generator_patch_connection(server *srv, connection *con, plugin_data *p) {
+  size_t i, j;
+  plugin_config *s = p->config_storage[0];
+
+  PATCH(match);
+
+  /* skip the first, the global context */
+  for (i = 1; i < srv->config_context->used; i++) {
+    data_config *dc = (data_config *)srv->config_context->data[i];
+    s = p->config_storage[i];
+
+    /* condition didn't match */
+    if (!config_check_cond(srv, con, dc)) continue;
+
+    /* merge config */
+    for (j = 0; j < dc->value->used; j++) {
+      data_unset *du = dc->value->data[j];
+
+      if (buffer_is_equal_string(du->key, CONST_STR_LEN("generator.array"))) {
+        PATCH(match);
+      }
+    }
+  }
+
+  return 0;
+}
+#undef PATCH
+
+URIHANDLER_FUNC(mod_generator_uri_handler) {
+  plugin_data *p = p_d;
+  int s_len;
+  size_t k;
+
+  UNUSED(srv);
+
+  if (con->mode != DIRECT) return HANDLER_GO_ON;
+
+  if (con->uri.path->used == 0) return HANDLER_GO_ON;
+
+  mod_generator_patch_connection(srv, con, p);
+
+  s_len = con->uri.path->used - 1;
+
+  for (k = 0; k < p->conf.match->used; k++) {
+    data_string *ds = (data_string *)p->conf.match->data[k];
+    int ct_len = ds->value->used - 1;
+
+    if (ct_len > s_len) continue;
+    if (ds->value->used == 0) continue;
+
+    if (0 == strncmp(con->uri.path->ptr + s_len - ct_len, ds->value->ptr, ct_len)) {
+      con->http_status = 403;
+
+      return HANDLER_FINISHED;
+    }
+  }
+
+  /* not found */
+  return HANDLER_GO_ON;
+}
+
+
+URIHANDLER_FUNC(mod_generator_subrequest_handler) {
+  (void) p_d;
+  //plugin_data *p = p_d;
+  buffer *b;
+  b = chunkqueue_get_append_buffer(con->write_queue);
+  
+
+  // get the url information
+  //int length = strlen(con->uri.path->ptr);
+  char *start = con->uri.path->ptr;
+  char *end;
+  //  char *end = start + length;
+  if (*start != '/') {
+    log_error_write(srv, __FILE__, __LINE__,  "s", "url doesn't start with a slash");
+    return HANDLER_GO_ON;
+  }
+  ++start;
+
+  // get the size in bytes form the url
+  int64_t bytes = strtoll(start, &end, 10);
+
+  switch (*end) {
+  case 'k':
+  case 'K':
+    bytes *= 1024;
+    ++end;
+    break;
+  case 'm':
+  case 'M':
+    bytes *= 1024*1024;
+    ++end;
+    break;
+  case 'g':
+  case 'G':
+    bytes *= 1024*1024*1024;
+    ++end;
+    break;
+  default:
+    break;
+  }
+
+  if (start == end && bytes <= 0 && *start != '-') {
+    log_error_write(srv, __FILE__, __LINE__,  "s", "can't find size in bytes");
+    return HANDLER_GO_ON;
+  }
+  start = end + 1;
+
+  // get the id from the url
+  int64_t id = strtoll(start, &end, 10);
+
+  if (start == end && id < 0 && *start != '-') {
+    log_error_write(srv, __FILE__, __LINE__,  "s", "problems finding the id");
+    return HANDLER_GO_ON;
+  }
+  start = end + 1;
+
+  // get the time to sleep from the url
+  int64_t sleepval = strtoll(start, &end, 10);
+
+  if (start == end && id < 0 && *start != '-') {
+    log_error_write(srv, __FILE__, __LINE__,  "s", "problems finding the id");
+    return HANDLER_GO_ON;
+  }
+  start = end + 1;
+  if (sleepval > 0) {
+    usleep(1000 * sleepval);
+  }
+
+  // check to see if we are going to set cacheable headers
+  int cache = -1;
+  if (strcmp(start, "cache") == 0) {
+    cache = 1;
+  } else if (strcmp(start, "no_cache") == 0) {
+    cache = 0;
+  } else {
+    log_error_write(srv, __FILE__, __LINE__,  "s", "didn't see cache or no_cache in the url");
+    return HANDLER_GO_ON;
+  }
+  
+  // print the body of the message
+  uint64_t to_write = 0;
+  --bytes;              // leave a char left over for \n
+  while (bytes > 0) {
+    if ((uint64_t)bytes > sizeof(static_data)) {
+      // biger then the static buffer, so write the entire buffer
+      to_write = sizeof(static_data);
+    } else {
+      to_write = bytes;
+    }
+
+    buffer_append_string_len(b, static_data, to_write);
+    bytes -= to_write;
+  }
+  
+  if (bytes == 0) {
+    buffer_append_string_len(b, "\n", 1); // add a \n to the end of the body
+  }
+
+  // write the headers if it is cacheable or not
+  if (cache == 0) {
+    response_header_insert(srv, con, CONST_STR_LEN("Cache-Control"), CONST_STR_LEN("private"));
+  } else {
+    response_header_insert(srv, con, CONST_STR_LEN("Last-Modified"), CONST_STR_LEN("Thu, 12 Feb 2009 23:00:00 GMT"));
+    response_header_insert(srv, con, CONST_STR_LEN("Cache-Control"), CONST_STR_LEN("max-age=86400, public"));
+  }
+  
+  con->http_status = 200;
+  con->file_finished = 1;
+  return HANDLER_FINISHED;
+}
+
+/* this function is called at dlopen() time and inits the callbacks */
+
+int mod_generator_plugin_init(plugin *p) {
+      
+  p->version     = LIGHTTPD_VERSION_ID;
+  p->name        = buffer_init_string("generator");
+
+  p->init        = mod_generator_init;
+  p->handle_uri_clean  = mod_generator_uri_handler;
+  p->handle_physical  = mod_generator_subrequest_handler;
+  p->set_defaults  = mod_generator_set_defaults;
+  p->cleanup     = mod_generator_free;
+
+  p->data        = NULL;
+
+  // set the static data used in the response;
+  memset(static_data, 'x', sizeof(static_data));
+
+  return 0;
+}
diff --git a/tools/reports/commits_since.sh b/tools/reports/commits_since.sh
new file mode 100755
index 00000000..24808795
--- /dev/null
+++ b/tools/reports/commits_since.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# This is a simple tool to show the commits, and author (by default) since
+# a particular date. This is useful to get activity reports on the git repo.
+#
+# Example: 
+#
+#   commits_since.sh "April 17" | grep -v commit|sort|uniq -c|sort -nr
+#
+DATE=${1:-}
+COMMIT=${2:-HEAD}
+PRETTY=${3:-format:%an}
+
+CMD="git rev-list --no-merges --pretty=${PRETTY}"
+
+if [ "$DATE" = "" ]; then
+    $CMD ${COMMIT}
+else
+    $CMD --after="${DATE}" ${COMMIT}
+fi
diff --git a/tools/traffic_shell.pl b/tools/traffic_shell.pl
new file mode 100755
index 00000000..95046d48
--- /dev/null
+++ b/tools/traffic_shell.pl
@@ -0,0 +1,900 @@
+#!/usr/bin/perl
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+use warnings;
+use strict;
+
+use Apache::TS;
+use Apache::TS::AdminClient;
+
+# Global mgmt API connection...
+my $CLI = Apache::TS::AdminClient->new() || die "Can't connect to the mgmt port";
+my $ETC_PATH = Apache::TS::PREFIX . '/' . $CLI->get_config("proxy.config.config_dir");
+
+# Helper functions around reading other configs
+sub print_config {
+  my $file = shift;
+
+  open(FILE, "<${ETC_PATH}/$file") || die "Can't open $file";
+  print <FILE>;
+  close(FILE);
+}
+sub param_die {
+  my ($param, $cmd) = @_;
+  die "Unknown argument `${param}' to ${cmd}";
+}
+
+
+# Some helper functions around common metrics
+sub get_on_off {
+  my $stat = shift;
+  return int($CLI->get_stat($stat)) > 0 ? "on" : "off";
+}
+sub get_string {
+  my $stat = shift;
+  return $CLI->get_stat($stat);
+}
+sub get_int {
+  my $stat = shift;
+  return int($CLI->get_stat($stat));
+}
+sub get_float {
+  my $stat = shift;
+  return sprintf("%.6f", $CLI->get_stat($stat));
+}
+sub get_pcnt {
+  my $stat = shift;
+  return sprintf("%.6f", $CLI->get_stat($stat) * 100);
+}
+sub get_with_si {
+  my $stat = shift;
+  my $si = shift;
+  my $val = int($CLI->get_stat($stat));
+  my $multi = 1;
+
+  $multi = 1024*1024*1024 if $si eq "G";
+  $multi = 1024*1024 if $si eq "M";
+  $multi = 1024 if $si eq "K";
+
+  return int($val / $multi);
+}
+sub get_switch {
+  my $stat = shift;
+  my $switch = shift;
+  my $val = $CLI->get_stat($stat);
+
+  return $switch->{$val} if exists($switch->{$val});
+  return $switch->{"default"};
+}
+
+
+# Command: show:alarms
+#
+sub show_alarms {
+    print "Not implemented, use 'traffic_line --alarms' instead\n";
+}
+
+
+# Command: show:cache
+#
+sub show_cache {
+  my $param = shift || "";
+
+  if ($param eq "") {
+    my $http_cache = get_on_off("proxy.config.http.cache.http");
+    my $max_obj = get_int("proxy.config.cache.max_doc_size");
+    my $min_life = get_int("proxy.config.http.cache.heuristic_min_lifetime");
+    my $max_life = get_int("proxy.config.http.cache.heuristic_max_lifetime");
+    my $dynamic_urls = get_on_off("proxy.config.http.cache.cache_urls_that_look_dynamic");
+    my $alternates = get_on_off("proxy.config.http.cache.enable_default_vary_headers");
+    my $vary_def_text = get_string("proxy.config.http.cache.vary_default_text");
+    my $vary_def_image = get_string("proxy.config.http.cache.vary_default_images");
+    my $vary_def_other = get_string("proxy.config.http.cache.vary_default_other");
+
+    my $when_reval = get_switch("proxy.config.http.cache.when_to_revalidate", {
+      "0" => "When The Object Has Expired",
+      "1" => "When The Object Has No Expiry Date",
+      "2" => "Always",
+      "3" => "Never",
+      "default" => "unknown" });
+
+    my $reqd_headers = get_switch("proxy.config.http.cache.required_headers", {
+      "0" => "Nothing",
+      "1" => "A Last Modified Time",
+      "2" => "An Explicit Lifetime",
+      "default" => "unknown" });
+
+    my $cookies = get_switch("proxy.config.http.cache.cache_responses_to_cookies", {
+      "0" => "No Content-types",
+      "1" => "All Content-types",
+      "2" => "Only Image-content Types",
+      "3" => "Content Types which are not Text",
+      "4" => "Content Types which are not Text with some exceptions\n",
+      "default" => "" });
+
+    print <<__EOL;
+HTTP Caching --------------------------- $http_cache
+Maximum HTTP Object Size ----------- NONE
+Freshness
+  Verify Freshness By Checking --------- $when_reval
+  Minimum Information to be Cacheable -- $reqd_headers
+  If Object has no Expiration Date:
+    Leave it in Cache for at least ----- $min_life s
+    but no more than ------------------- $max_life s
+Variable Content
+  Cache Responses to URLs that contain
+    "?",";","cgi" or end in ".asp" ----- $dynamic_urls
+  Alternates Enabled ------------------- $alternates
+  Vary on HTTP Header Fields:
+    Text ------------------------------- $vary_def_text
+    Images ----------------------------- $vary_def_image
+    Other ------------------------------ $vary_def_other
+  Cache responses to requests containing cookies for:
+    $cookies
+__EOL
+  } elsif ($param eq "rules") {
+    print "cache.config rules\n";
+    print "-------------------\n";
+    print_config("cache.config");
+  } elsif ($param eq "storage") {
+    print "storage.config rules\n";
+    print "--------------------\n";
+    print_config("storage.config");
+  } else {
+    param_die($param, "show:cache");
+  }
+}
+
+
+# Command: show:cache-stats
+#
+sub show_cache_stats {
+  my $bytes_used = get_with_si("proxy.process.cache.bytes_used", "G");
+  my $bytes_total = get_with_si("proxy.process.cache.bytes_total", "G");
+
+  my $ram_cache_total_bytes = get_int("proxy.process.cache.ram_cache.total_bytes");
+  my $ram_cache_bytes_used = get_int("proxy.process.cache.ram_cache.bytes_used");
+  my $ram_cache_hits = get_int("proxy.process.cache.ram_cache.hits");
+  my $ram_cache_misses = get_int("proxy.process.cache.ram_cache.misses");
+  my $lookup_active = get_int("proxy.process.cache.lookup.active");
+  my $lookup_success = get_int("proxy.process.cache.lookup.success");
+  my $lookup_failure = get_int("proxy.process.cache.lookup.failure");
+  my $read_active = get_int("proxy.process.cache.read.active");
+  my $read_success = get_int("proxy.process.cache.read.success");
+  my $read_failure = get_int("proxy.process.cache.read.failure");
+  my $write_active = get_int("proxy.process.cache.write.active");
+  my $write_success = get_int("proxy.process.cache.write.success");
+  my $write_failure = get_int("proxy.process.cache.write.failure");
+  my $update_active = get_int("proxy.process.cache.update.active");
+  my $update_success = get_int("proxy.process.cache.update.success");
+  my $update_failure = get_int("proxy.process.cache.update.failure");
+  my $remove_active = get_int("proxy.process.cache.remove.active");
+  my $remove_success = get_int("proxy.process.cache.remove.success");
+  my $remove_failure = get_int("proxy.process.cache.remove.failure");
+
+  print <<__EOL
+Bytes Used --- $bytes_used GB
+Cache Size --- $bytes_used GB
+--RAM Cache--
+Total Bytes -- $ram_cache_total_bytes
+Bytes Used --- $ram_cache_bytes_used
+Hits --------- $ram_cache_hits
+Misses ------- $ram_cache_misses
+--Lookups--
+In Progress -- $lookup_active
+Hits --------- $lookup_success
+Misses ------- $lookup_failure
+--Reads--
+In Progress -- $read_active
+Hits --------- $read_success
+Misses ------- $read_failure
+--Writes--
+In Progress -- $write_active
+Hits --------- $write_success
+Misses ------- $write_failure
+--Updates--
+In Progress -- $update_active
+Hits --------- $update_success
+Misses ------- $update_failure
+--Removes--
+In Progress -- $remove_active
+Hits --------- $remove_success
+Misses ------- $remove_failure
+__EOL
+}
+
+
+# Command: show:cluster
+#
+sub show_cluster {
+  my $cluster = get_int("proxy.config.cluster.cluster_port");
+  my $cluster_rs = get_int("proxy.config.cluster.rsport");
+  my $cluster_mc = get_int("proxy.config.cluster.mcport");
+
+  print <<__EOF
+Cluster Port ----------- $cluster
+Cluster RS Port -------- $cluster_rs
+Cluster MC Port -------- $cluster_mc
+__EOF
+}
+
+
+# Command: show:dns-resolver
+#
+sub show_dns_resolver {
+  my $dns_search_default_domains = get_on_off("proxy.config.dns.search_default_domains");
+  my $http_enable_url_expandomatic = get_on_off("proxy.config.http.enable_url_expandomatic");
+  print <<__EOF
+Local Domain Expansion -- $dns_search_default_domains
+.com Domain Expansion --- $http_enable_url_expandomatic
+__EOF
+}
+
+
+# Command: show:dns-stats
+#
+sub show_dns_stats {
+  my $lookups_per_second = get_float("proxy.node.dns.lookups_per_second");
+
+  print <<__EOF
+DNS Lookups Per Second -- $lookups_per_second
+__EOF
+}
+
+
+# Command: show:hostdb
+#
+sub show_hostdb {
+  my $lookup_timeout = get_int("proxy.config.hostdb.lookup_timeout");
+  my $timeout = get_int("proxy.config.hostdb.timeout");
+  my $verify_after = get_int("proxy.config.hostdb.verify_after");
+  my $fail_timeout = get_int("proxy.config.hostdb.fail.timeout");
+  my $re_dns_on_reload = get_on_off("proxy.config.hostdb.re_dns_on_reload");
+  my $dns_lookup_timeout = get_int("proxy.config.dns.lookup_timeout");
+  my $dns_retries = get_int("proxy.config.dns.retries");
+  print <<__EOF
+Lookup Timeout ----------- $lookup_timeout s
+Foreground Timeout ------- $timeout s
+Background Timeout ------- $verify_after s
+Invalid Host Timeout ----- $fail_timeout s
+Re-DNS on Reload --------- $re_dns_on_reload
+Resolve Attempt Timeout -- $dns_lookup_timeout s
+Number of retries -------- $dns_retries
+__EOF
+}
+
+
+# Command: show:hostdb-stats
+#
+sub show_hostdb_stats {
+  my $hit_ratio = get_float("proxy.node.hostdb.hit_ratio");
+  my $lookups_per_second = get_float("proxy.node.dns.lookups_per_second");
+
+  print <<__EOF
+Host Database hit Rate -- $hit_ratio % *
+DNS Lookups Per Second -- $lookups_per_second
+
+* Value reprensents 10 second average.
+__EOF
+}
+
+
+# Command: show:http
+#
+sub show_http {
+  my $http_enabled = get_on_off("proxy.config.http.cache.http");
+  my $http_server = get_string("proxy.config.http.server_ports");
+  my $keepalive_timeout_in = get_int("proxy.config.http.keep_alive_no_activity_timeout_in");
+  my $keepalive_timeout_out = get_int("proxy.config.http.keep_alive_no_activity_timeout_out");
+  my $inactivity_timeout_in = get_int("proxy.config.http.transaction_no_activity_timeout_in");
+  my $inactivity_timeout_out = get_int("proxy.config.http.transaction_no_activity_timeout_out");
+  my $activity_timeout_in = get_int("proxy.config.http.transaction_active_timeout_in");
+  my $activity_timeout_out = get_int("proxy.config.http.transaction_active_timeout_out");
+  my $max_alts = get_int("proxy.config.cache.limits.http.max_alts");
+  my $remove_from = get_int("proxy.config.http.anonymize_remove_from");
+  my $remove_referer = get_int("proxy.config.http.anonymize_remove_referer");
+  my $remove_user_agent = get_int("proxy.config.http.anonymize_remove_user_agent");
+  my $remove_cookie = get_int("proxy.config.http.anonymize_remove_cookie");
+  my $other_header_list = get_string("proxy.config.http.anonymize_other_header_list");
+  my $insert_client_ip = get_int("proxy.config.http.anonymize_insert_client_ip");
+  my $remove_client_ip = get_int("proxy.config.http.anonymize_remove_client_ip");
+  my $global_user_agent = get_string("proxy.config.http.global_user_agent_header");
+
+  # A bunch of strings here are optional...
+  my $optional = "";
+
+  if ($remove_from || $remove_referer || $remove_user_agent || $remove_cookie) {
+    $optional = "Remove the following common headers -- \n";
+    $optional .= "From\n" if $remove_from;
+    $optional .= "Referer\n" if $remove_referer;
+    $optional .= "User-Agent\n" if $remove_user_agent;
+    $optional .= "Cookie\n" if $remove_cookie;
+  }
+
+  if ($other_header_list ne "NULL") {
+    $optional .= "Remove additional headers ----- $other_header_list\n";
+  }
+
+  if ($insert_client_ip) {
+    $optional .= "Insert Client IP Address into Header\n";
+  }
+
+  if ($remove_client_ip) {
+    $optional .= "Remove Client IP Address from Header\n";
+  }
+
+  if ($global_user_agent ne "NULL") {
+    $optional .= "Set User-Agent header to $global_user_agent\n";
+  }
+
+
+  print <<__EOF
+HTTP Caching ------------------ $http_enabled
+HTTP Server Port(s) ----------- $http_server
+Keep-Alive Timeout Inbound ---- $keepalive_timeout_in s
+Keep-Alive Timeout Outbound --- $keepalive_timeout_out s
+Inactivity Timeout Inbound ---- $inactivity_timeout_in s
+Inactivity Timeout Outbound --- $inactivity_timeout_out s
+Activity Timeout Inbound ------ $activity_timeout_in s
+Activity Timeout Outbound ----- $activity_timeout_out s
+Maximum Number of Alternates -- $max_alts
+${optional}
+__EOF
+}
+
+
+# Command: show:http-stats
+#
+sub show_http_stats {
+  my $user_agent_response_document_total_size = get_with_si("proxy.process.http.user_agent_response_document_total_size", "M");
+  my $user_agent_response_header_total_size = get_with_si("proxy.process.http.user_agent_response_header_total_size", "M");
+  my $current_client_connections = get_int("proxy.process.http.current_client_connections");
+  my $current_client_transactions = get_int("proxy.process.http.current_client_transactions");
+  my $origin_server_response_document_total_size = get_with_si("proxy.process.http.origin_server_response_document_total_size", "M");
+  my $origin_server_response_header_total_size = get_with_si("proxy.process.http.origin_server_response_header_total_size", "M");
+  my $current_server_connections = get_int("proxy.process.http.current_server_connections");
+  my $current_server_transactions = get_int("proxy.process.http.current_server_transactions");
+
+  print <<__EOF
+Total Document Bytes ----- $user_agent_response_document_total_size MB
+Total Header Bytes ------- $user_agent_response_header_total_size MB
+Total Connections -------- $current_client_connections
+Transactins In Progress -- $current_client_transactions
+--Server--
+Total Document Bytes ----- $origin_server_response_document_total_size MB
+Total Header Bytes ------- $origin_server_response_header_total_size MB
+Total Connections -------- $current_server_connections
+Transactins In Progress -- $current_server_transactions
+__EOF
+}
+
+
+# Command: show:http-trans-stats
+#
+sub show_http_trans_stats {
+  my $frac_avg_10s_hit_fresh = get_pcnt("proxy.node.http.transaction_frac_avg_10s.hit_fresh");
+  my $frac_avg_10s_hit_revalidated = get_pcnt("proxy.node.http.transaction_frac_avg_10s.hit_revalidated");
+  my $frac_avg_10s_miss_cold = get_pcnt("proxy.node.http.transaction_frac_avg_10s.miss_cold");
+  my $frac_avg_10s_miss_not_cachable = get_pcnt("proxy.node.http.transaction_frac_avg_10s.miss_not_cacheable");
+  my $frac_avg_10s_miss_changed = get_pcnt("proxy.node.http.transaction_frac_avg_10s.miss_changed");
+  my $frac_avg_10s_miss_client_no_cache = get_pcnt("proxy.node.http.transaction_frac_avg_10s.miss_client_no_cache");
+  my $frac_avg_10s_errors_connect_failed = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.connect_failed");
+  my $frac_avg_10s_errors_other = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.other");
+  my $frac_avg_10s_errors_aborts = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.aborts");
+  my $frac_avg_10s_errors_possible_aborts = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.possible_aborts");
+  my $frac_avg_10s_errors_early_hangups = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.early_hangups");
+  my $frac_avg_10s_errors_empty_hangups = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.empty_hangups");
+  my $frac_avg_10s_errors_pre_accept_hangups = get_pcnt("proxy.node.http.transaction_frac_avg_10s.errors.pre_accept_hangups");
+  my $frac_avg_10s_other_unclassified = get_pcnt("proxy.node.http.transaction_frac_avg_10s.other.unclassified");
+
+  my $msec_avg_10s_hit_fresh = get_int("proxy.node.http.transaction_msec_avg_10s.hit_fresh");
+  my $msec_avg_10s_hit_revalidated = get_int("proxy.node.http.transaction_msec_avg_10s.hit_revalidated");
+  my $msec_avg_10s_miss_cold = get_int("proxy.node.http.transaction_msec_avg_10s.miss_cold");
+  my $msec_avg_10s_miss_not_cachable = get_int("proxy.node.http.transaction_msec_avg_10s.miss_not_cacheable");
+  my $msec_avg_10s_miss_changed = get_int("proxy.node.http.transaction_msec_avg_10s.miss_changed");
+  my $msec_avg_10s_miss_client_no_cache = get_int("proxy.node.http.transaction_msec_avg_10s.miss_client_no_cache");
+  my $msec_avg_10s_errors_connect_failed = get_int("proxy.node.http.transaction_msec_avg_10s.errors.connect_failed");
+  my $msec_avg_10s_errors_other = get_int("proxy.node.http.transaction_msec_avg_10s.errors.other");
+  my $msec_avg_10s_errors_aborts = get_int("proxy.node.http.transaction_msec_avg_10s.errors.aborts");
+  my $msec_avg_10s_errors_possible_aborts = get_int("proxy.node.http.transaction_msec_avg_10s.errors.possible_aborts");
+  my $msec_avg_10s_errors_early_hangups = get_int("proxy.node.http.transaction_msec_avg_10s.errors.early_hangups");
+  my $msec_avg_10s_errors_empty_hangups = get_int("proxy.node.http.transaction_msec_avg_10s.errors.empty_hangups");
+  my $msec_avg_10s_errors_pre_accept_hangups = get_int("proxy.node.http.transaction_msec_avg_10s.errors.pre_accept_hangups");
+  my $msec_avg_10s_other_unclassified = get_int("proxy.node.http.transaction_msec_avg_10s.other.unclassified");
+
+  print <<__EOF
+HTTP Transaction Frequency and Speeds
+Transaction Type              Frequency   Speed(ms)
+--Hits--
+Fresh ----------------------- $frac_avg_10s_hit_fresh %  $msec_avg_10s_hit_fresh
+Stale Revalidated ----------- $frac_avg_10s_hit_revalidated %  $msec_avg_10s_hit_revalidated
+--Misses--
+Now Cached ------------------ $frac_avg_10s_miss_cold %  $msec_avg_10s_miss_cold
+Server No Cache ------------- $frac_avg_10s_miss_not_cachable %  $msec_avg_10s_miss_not_cachable
+Stale Reloaded -------------- $frac_avg_10s_miss_changed %  $msec_avg_10s_miss_changed
+Client No Cache ------------- $frac_avg_10s_miss_client_no_cache %  $msec_avg_10s_miss_client_no_cache
+--Errors--
+Connection Failures --------- $frac_avg_10s_errors_connect_failed %  $msec_avg_10s_errors_connect_failed
+Other Errors ---------------- $frac_avg_10s_errors_other %  $msec_avg_10s_errors_other
+--Aborted Transactions--
+Client Aborts --------------- $frac_avg_10s_errors_aborts %  $msec_avg_10s_errors_aborts
+Questionable Client Aborts -- $frac_avg_10s_errors_possible_aborts %  $msec_avg_10s_errors_possible_aborts
+Partial Request Hangups ----- $frac_avg_10s_errors_early_hangups %  $msec_avg_10s_errors_early_hangups
+Pre-Request Hangups --------- $frac_avg_10s_errors_empty_hangups %  $msec_avg_10s_errors_empty_hangups
+Pre-Connect Hangups --------- $frac_avg_10s_errors_pre_accept_hangups %  $msec_avg_10s_errors_pre_accept_hangups
+--Other Transactions--
+Unclassified ---------------- $frac_avg_10s_other_unclassified %  $msec_avg_10s_other_unclassified
+__EOF
+}
+
+
+# Command: show:icp
+#
+sub show_icp {
+  my $param = shift || "";
+
+  if ($param eq "") {
+    my $icp_enabled = get_on_off("proxy.config.icp.enabled");
+    my $icp_port = get_int("proxy.config.icp.icp_port");
+    my $multicast_enabled = get_on_off("proxy.config.icp.multicast_enabled");
+    my $query_timeout = get_int("proxy.config.icp.query_timeout");
+    print <<__EOF
+ICP Mode Enabled ------- $icp_enabled
+ICP Port --------------- $icp_port
+ICP Multicast Enabled -- $multicast_enabled
+ICP Query Timeout ------ $query_timeout s
+__EOF
+  } elsif ($param eq "peers") {
+    print "icp.config Rules\n";
+    print "----------------\n";
+    print_config("icp.config");
+  } else {
+    param_die($param, "show:icp");
+  }
+}
+
+
+# Command: show:icp-stats
+#
+sub show_icp_stats {
+  my $icp_query_requests = get_int("proxy.process.icp.icp_query_requests");
+  my $total_udp_send_queries = get_int("proxy.process.icp.total_udp_send_queries");
+  my $icp_query_hits = get_int("proxy.process.icp.icp_query_hits");
+  my $icp_query_misses = get_int("proxy.process.icp.icp_query_misses");
+  my $icp_remote_responses = get_int("proxy.process.icp.icp_remote_responses");
+  my $total_icp_response_time = get_float("proxy.process.icp.total_icp_response_time");
+  my $total_icp_request_time = get_float("proxy.process.icp.total_icp_request_time");
+  my $icp_remote_query_requests = get_int("proxy.process.icp.icp_remote_query_requests");
+  my $cache_lookup_success = get_int("proxy.process.icp.cache_lookup_success");
+  my $cache_lookup_fail = get_int("proxy.process.icp.cache_lookup_fail");
+  my $query_response_write = get_int("proxy.process.icp.query_response_write");
+  
+  print <<__EOF
+--Queries Originating From This Node--
+Query Requests ----------------------------- $icp_query_requests
+Query Messages Sent ------------------------ $total_udp_send_queries
+Peer Hit Messages Received ----------------- $icp_query_hits
+Peer Miss Messages Received ---------------- $icp_query_misses
+Total Responses Received ------------------- $icp_remote_responses
+Average ICP Message Response Time ---------- $total_icp_response_time ms
+Average ICP Request Time ------------------- $total_icp_request_time ms
+
+--Queries Originating from ICP Peers--
+Query Messages Received -------------------- $icp_remote_query_requests
+Remote Query Hits -------------------------- $cache_lookup_success
+Remote Query Misses ------------------------ $cache_lookup_fail
+Successful Response Message Sent to Peers -- $query_response_write
+__EOF
+}
+
+
+# Command: show:logging
+#
+sub show_logging {
+  my $logging_enabled = get_switch("proxy.config.log.logging_enabled", {
+    "0" => "no logging",
+    "1" => "errors only",
+    "2" => "transactions only",
+    "3" => "errors and transactions",
+    "default" => "invalid mode"});
+
+  my $log_space = get_int("proxy.config.log.max_space_mb_for_logs");
+  my $headroom_space = get_int("proxy.config.log.max_space_mb_headroom");
+
+  my $collation_mode = get_on_off("proxy.local.log.collation_mode");
+  my $collation_host = get_string("proxy.config.log.collation_host");
+  my $collation_port = get_int("proxy.config.log.collation_port");
+  my $collation_secret = get_string("proxy.config.log.collation_secret");
+  my $host_tag = get_on_off("proxy.config.log.collation_host_tagged");
+  my $preproc_threads = get_on_off("proxy.config.log.collation_preproc_threads");
+  my $orphan_space = get_int("proxy.config.log.max_space_mb_for_orphan_logs");
+
+  my $squid_log = get_on_off("proxy.config.log.squid_log_enabled");
+  my $squid_is_ascii = get_switch("proxy.config.log.squid_log_is_ascii", {
+    "0" => "BINARY",
+    "default" => "ASCII"});
+  my $squid_file_name = get_string("proxy.config.log.squid_log_name");
+  my $squid_file_header = get_string("proxy.config.log.squid_log_header");
+  
+  my $common_log = get_on_off("proxy.config.log.common_log_enabled");
+  my $common_is_ascii = get_switch("proxy.config.log.common_log_is_ascii", {
+    "0" => "BINARY",
+    "default" => "ASCII"});
+  my $common_file_name = get_string("proxy.config.log.common_log_name");
+  my $common_file_header = get_string("proxy.config.log.common_log_header");
+  
+  my $extended_log = get_on_off("proxy.config.log.extended_log_enabled");
+  my $extended_is_ascii = get_switch("proxy.config.log.extended_log_is_ascii", {
+    "0" => "BINARY",
+    "default" => "ASCII"});
+  my $extended_file_name = get_string("proxy.config.log.extended_log_name");
+  my $extended_file_header = get_string("proxy.config.log.extended_log_header");
+  
+  my $extended2_log = get_on_off("proxy.config.log.extended2_log_enabled");
+  my $extended2_is_ascii = get_switch("proxy.config.log.extended2_log_is_ascii", {
+    "0" => "BINARY",
+    "default" => "ASCII"});
+  my $extended2_file_name = get_string("proxy.config.log.extended2_log_name");
+  my $extended2_file_header = get_string("proxy.config.log.extended2_log_header");
+  
+  my $icp_log = get_on_off("proxy.config.log.separate_icp_logs");
+  my $http_host_log = get_on_off("proxy.config.log.separate_host_logs");
+
+  my $custom_log = get_on_off("proxy.config.log.custom_logs_enabled");
+
+  my $rolling = get_on_off("proxy.config.log.rolling_enabled");
+  my $roll_offset_hr = get_int("proxy.config.log.rolling_offset_hr");
+  my $roll_interval = get_int("proxy.config.log.rolling_interval_sec");
+  my $auto_delete = get_on_off("proxy.config.log.auto_delete_rolled_files");
+  
+  print <<__EOF
+Logging Mode ----------------------------- $logging_enabled
+
+Management
+  Log Space Limit ------------------------ $log_space MB
+  Log Space Headroom --------------------- $headroom_space MB
+
+Log Collation ---------------------------- $collation_mode
+  Host ----------------------------------- $collation_host
+  Port ----------------------------------- $collation_port
+  Secret --------------------------------- $collation_secret
+  Host Tagged ---------------------------- $host_tag
+  Preproc Threads ------------------------ $preproc_threads
+  Space Limit for Orphan Files ----------- $orphan_space MB
+
+Squid Format ----------------------------- $squid_log
+  File Type ------------------------------ $squid_is_ascii
+  File Name ------------------------------ $squid_file_name
+  File Header ---------------------------- $squid_file_header
+
+Netscape Common -------------------------- $common_log
+  File Type ------------------------------ $common_is_ascii
+  File Name ------------------------------ $common_file_name
+  File Header ---------------------------- $common_file_header
+
+Netscape Extended ------------------------ $extended_log
+  File Type ------------------------------ $extended_is_ascii
+  File Name ------------------------------ $extended_file_name
+  File Header ---------------------------- $extended_file_header
+
+Netscape Extended2 ----------------------- $extended2_log
+  File Type ------------------------------ $extended2_is_ascii
+  File Name   ---------------------------- $extended2_file_name
+  File Header ---------------------------- $extended2_file_header
+
+Splitting
+  ICP Log Splitting ---------------------- $icp_log
+  HTTP Host Log Splitting ---------------- $http_host_log
+
+Custom Logs ------------------------------ $custom_log
+
+Rolling ---------------------------------- $rolling
+  Roll Offset Hour ----------------------- $roll_offset_hr
+  Roll Interval -------------------------- $roll_interval s
+  Auto-delete rolled files (low space) --- $auto_delete
+__EOF
+}
+
+
+# Command: show:logging-stats
+#
+sub show_logging_stats {
+  my $log_file_open = get_int("proxy.process.log.log_files_open");
+  my $log_files_space_used = get_int("proxy.process.log.log_files_space_used");
+  my $event_log_access = get_int("proxy.process.log.event_log_access");
+  my $event_log_access_skip = get_int("proxy.process.log.event_log_access_skip");
+  my $event_log_error = get_int("proxy.process.log.event_log_error");
+  
+  print <<__EOF
+Current Open Log Files ----------- $log_file_open
+Space Used For Log Files --------- $log_files_space_used
+Number of Access Events Logged --- $event_log_access
+Number of Access Events Skipped -- $event_log_access_skip
+Number of Error Events Logged ---- $event_log_error
+__EOF
+}
+
+
+# Command: show:parent
+#
+sub show_parent {
+  my $param = shift || "";
+
+  if ($param eq "") {
+    my $parent_enabled = get_on_off("proxy.config.http.parent_proxy_routing_enable");
+    my $parent_cache = get_string("proxy.config.http.parent_proxies");
+
+    print <<__EOF
+Parent Caching -- $parent_enabled
+Parent Cache ---- $parent_cache
+__EOF
+  } elsif ($param eq "rules") {
+    print "parent.config rules\n";
+    print "-------------------\n";
+    print_config("parent.config");
+  } else {
+    param_die($param, "show:parent");
+  }
+}
+
+
+# Command: show:proxy
+#
+sub show_proxy {
+  my $name = get_string("proxy.config.proxy_name");
+  print "Name -- ", $name, "\n";
+}
+
+
+# Command: show:proxy-stats
+#
+sub show_proxy_stats {
+  my $cache_hit_ratio = get_pcnt("proxy.node.cache_hit_ratio");
+  my $cache_hit_mem_ratio = get_pcnt("proxy.node.cache_hit_mem_ratio");
+  my $bandwidth_hit_ratio = get_pcnt("proxy.node.bandwidth_hit_ratio");
+  my $percent_free = get_pcnt("proxy.node.cache.percent_free");
+
+  my $current_server_connection = get_int("proxy.node.current_server_connections");
+  my $current_client_connection = get_int("proxy.node.current_client_connections");
+  my $current_cache_connection = get_int("proxy.node.current_cache_connections");
+
+  my $client_throughput_out = get_float("proxy.node.client_throughput_out");
+  my $xacts_per_second = get_float("proxy.node.user_agent_xacts_per_second");
+  
+  print <<__EOF
+Document Hit Rate -------- $cache_hit_ratio % *
+Ram cache Hit Rate ------- $cache_hit_mem_ratio % *
+Bandwidth Saving --------- $bandwidth_hit_ratio % *
+Cache Percent Free ------- $percent_free %
+Open Server Connections -- $current_server_connection
+Open Client Connections -- $current_client_connection
+Open Cache Connections --- $current_cache_connection
+Client Throughput -------- $client_throughput_out MBit/Sec
+Transaction Per Second --- $xacts_per_second
+
+* Value represents 10 second average.
+__EOF
+}
+
+
+# Command: show:remap
+#
+sub show_remap {
+  print "remap.config rules\n";
+  print "-------------------\n";
+  print_config("remap.config");
+}
+
+
+# Command: show:scheduled-update
+#
+sub show_scheduled_update {
+  my $param = shift || "";
+
+  if ($param eq "") {
+    my $enabled = get_on_off("proxy.config.update.enabled");
+    my $retry_count = get_int("proxy.config.update.retry_count");
+    my $retry_interval = get_int("proxy.config.update.retry_interval");
+    my $concurrent_updates = get_int("proxy.config.update.concurrent_updates");
+    my $force = get_on_off("proxy.config.update.force");
+    
+    print <<__EOF
+Scheduled Update ------------- $enabled
+Update Error Retry Count ----- $retry_count
+Update Error Retry Interval -- $retry_interval s
+Maximum Concurrent Updates --- $concurrent_updates
+Force Immediate Update ------- $force
+__EOF
+  } elsif ($param eq "rules") {
+    print "update.config rules\n";
+    print "-------------------\n";
+    print_config("update.config");
+  } else {
+    param_die($param, "show:scheduled-update");
+  }
+}
+
+
+# Command: show:security
+#
+sub show_security {
+  print "Traffic Server Access\n";
+  print "-------------------\n";
+  print_config("ip_allow.config");
+}
+
+
+# Command: show:socks
+#
+sub show_socks {
+  my $param = shift || "";
+
+  if ($param eq "") {
+    my $socks_enabled = get_on_off("proxy.config.socks.socks_needed");
+    my $version = get_int("proxy.config.socks.socks_version");
+    my $default_servers = get_string("proxy.config.socks.default_servers");
+    my $accept_enabled = get_on_off("proxy.config.socks.accept_enabled");
+    my $accept_port = get_int("proxy.config.socks.accept_port");
+    
+    print <<__EOF
+SOCKS -------------------- $socks_enabled
+SOCKS Version ------------ $version
+SOCKS Default Servers ---- $default_servers
+SOCKS Accept Enabled ----- $accept_enabled
+SOCKS Accept Port -------- $accept_port
+__EOF
+  } elsif ($param eq "rules") {
+    print "socks.config rules\n";
+    print "------------------\n";
+    print_config("socks.config");
+  } else {
+    param_die($param, "show:socks");
+  }
+}
+
+
+# Command: show:ssl
+#
+sub show_ssl {
+  my $connect_ports = get_string("proxy.config.http.connect_ports");
+  print "Restrict CONNECT connections to Ports -- ", $connect_ports, "\n";
+}
+
+
+# Command: show:status
+#
+sub show_status {
+    print "Not implemented, use 'traffic_line --status' instead\n";
+}
+
+
+# Command: show:version
+#
+sub show_version {
+  my $ts_version = get_string("proxy.process.version.server.short");
+  my $tm_version = get_string("proxy.node.version.manager.short");
+
+  print <<__EOF
+traffic_server version --- $ts_version
+traffic_manager version -- $tm_version
+__EOF
+}
+
+
+# Command: show:virtual-ip
+#
+sub show_virtual_ip {
+  print <<__EOF
+Not supported
+__EOF
+}
+
+# Basic help function
+sub help {
+  print <<__EOF
+Usage: traffic_shell <command> [argument]
+
+   show:cache [rules | storage]
+   show:cache-stats
+   show:cluster
+   show:dns-resolver
+   show:dns-stats
+   show:hostdb
+   show:hostdb-stats
+   show:http
+   show:http-stats
+   show:http-trans-stats
+   show:icp [peers]
+   show:icp-stats
+   show:logging
+   show:logging-stats
+   show:parent [rules]
+   show:proxy
+   show:proxy-stats
+   show:remap
+   show:scheduled-update [rules]
+   show:security
+   show:socks [rules]
+   show:ssl
+   show:status
+   show:version
+   show:virtual-ip
+   help
+__EOF
+}
+
+
+#
+# Dispatcher  / command line
+#
+my %COMMANDS = ( "show:alarms", \&show_alarms,
+                 "show:cache", \&show_cache,
+                "show:cache-stats", \&show_cache_stats,
+                "show:cluster",  \&show_cluster,
+                "show:dns-resolver", \&show_dns_resolver,
+                "show:dns-stats", \&show_dns_stats,
+                "show:hostdb", \&show_hostdb,
+                "show:hostdb-stats", \&show_hostdb_stats,
+                "show:http", \&show_http,
+                "show:http-stats", \&show_http_stats,
+                "show:http-trans-stats", \&show_http_trans_stats,
+                "show:icp", \&show_icp,
+                "show:icp-stats", \&show_icp_stats,
+                "show:logging", \&show_logging,
+                "show:logging-stats", \&show_logging_stats,
+                "show:parent", \&show_parent,
+                "show:proxy", \&show_proxy,
+                "show:proxy-stats", \&show_proxy_stats,
+                "show:remap", \&show_remap,
+                "show:scheduled-update", \&show_scheduled_update,
+                "show:security", \&show_security,
+                "show:socks", \&show_socks,
+                "show:ssl", \&show_ssl,
+                "show:status", \&show_status,
+                "show:version", \&show_version,
+                "show:virtual-ip", \&show_virtual_ip,
+                "help", \&help,
+                "show", \&help);
+
+if ($#ARGV >= 0) {
+  my $cmd = shift;
+
+  die "Not valid command: $cmd" unless exists($COMMANDS{$cmd});
+  my $func = $COMMANDS{$cmd};
+
+  $func->(@ARGV);
+} else {
+  use Term::ReadLine;
+  my $term = Term::ReadLine->new('Apache Traffic Server');
+
+  my $prompt = "trafficserver> ";
+  my $OUT = $term->OUT || \*STDOUT;
+
+  while (defined ($_ = $term->readline($prompt))) {
+    chomp;
+    my ($cmd, @args) = split;
+
+    if (exists($COMMANDS{$cmd})) {
+      my $func = $COMMANDS{$cmd};
+      $func->(@args);
+      print "\n";
+    } else {
+      print "invalid command name \"$cmd\"\n";
+    }
+    $term->addhistory($_) if /\S/;
+  }
+}
diff --git a/tools/tspush b/tools/tspush
new file mode 100755
index 00000000..36a65e28
--- /dev/null
+++ b/tools/tspush
@@ -0,0 +1,73 @@
+#!/usr/bin/env perl
+
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+use strict;
+use warnings;
+
+use bytes;
+use IO::Socket qw( :crlf );
+use Getopt::Long;
+use URI;
+
+
+die ("Use --help for options\n") unless GetOptions (
+	"f|file=s" => \my $f_name,
+        "u|url=s" => \my $url,
+	"v|verbose" => \my $debug,
+        "h|help" => sub {
+		print <<HELP;
+Usage: $0 OPTIONS
+
+OPTIONS
+
+	-f|--file     Which file to PUSH
+	-u|--url      URL where to PUSH
+	-v|--verbose  Print the PUSHed content to stdout
+
+Example
+	$0 -f foo.txt -u http://localhost:8080/foo.txt
+HELP
+		exit;
+	}
+);
+
+die ("--file and --url must be given!" ) unless ( $f_name && $url) ;
+
+open (my $fh, '<', $f_name) or die $!;
+my $uri = URI->new($url);
+my $f_type = `file -b --mime $f_name`;
+
+#
+# read the file in one go:
+#
+binmode $fh;
+my $f = do { local $/; <$fh> };
+my $len_content = length($f) + 2;
+
+
+my $response = "HTTP/1.0 200 OK${CRLF}Content-type: ${f_type}${CRLF}Content-length: ${len_content}${CRLF}${CRLF}${f}${CRLF}";
+my $len_push = length $response;
+
+my $push = "PUSH ${url} HTTP/1.0${CRLF}Content-Length: ${len_push}${CRLF}${CRLF}${response}";
+print $push if ($debug);
+
+my $sock = IO::Socket::INET->new(PeerAddr => $uri->host, PeerPort => $uri->port, Proto => 'tcp') or die "Error creating socket: $!";
+print $sock $push;
+print do { local $/; <$sock> };
+
diff --git a/tools/tsxs.in b/tools/tsxs.in
new file mode 100755
index 00000000..d5de492a
--- /dev/null
+++ b/tools/tsxs.in
@@ -0,0 +1,228 @@
+#!/usr/bin/env bash
+
+#   Licensed to the Apache Software Foundation (ASF) under one
+#   or more contributor license agreements.  See the NOTICE file
+#   distributed with this work for additional information
+#   regarding copyright ownership.  The ASF licenses this file
+#   to you under the Apache License, Version 2.0 (the
+#   "License"); you may not use this file except in compliance
+#   with the License.  You may obtain a copy of the License at
+# 
+#       http://www.apache.org/licenses/LICENSE-2.0
+# 
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+host="@HOST_GUESS@"
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+libdir="@libdir@"
+localstatedir="@localstatedir@"
+
+INSTALLDIR=`eval echo "@libexecdir@"`
+INCLUDEDIR=`eval echo "@includedir@"`
+CPPFLAGS="$CPPFLAGS -I$INCLUDEDIR"
+CFLAGS="$CFLAGS @CFLAGS@"
+CXXFLAGS="$CXXFLAGS @CXXFLAGS@"
+BUILD=
+DEBUGECHO=
+
+if [ -z "$CC" ]; then
+	CC="@CC@"
+fi
+if [ -z "$CXX" ]; then
+	CXX="@CXX@"
+fi
+
+debug() {
+	if [ -n "$DEBUGECHO" ]; then
+		echo $*
+	fi
+}
+
+bail() {
+	echo tsxs: $*
+	exit 1
+}
+
+usage() {
+	cat <<EOF
+$0 : a tool to compile, link and install trafficserver plugins.
+
+Compilation and Linking Options:
+-o modulename.so                        ## the name of the module
+-I include                              ## add -Iinclude to CFLAGS
+-L library path				## add -Lpath to LDFLAGS
+-l library                              ## add -llib to the LDFLAGS
+
+Installation Options:
+-o modulename.so                        ## the name of the module
+-i                                      ## install the object
+
+Query Options:
+-q varname                              ## query a Traffic Server build variable
+
+Example:
+  $0 -I/foo/include -L/foo/lib -lsomelib -o tsmodule.so src1.c src2.c ...
+
+EOF
+
+}
+
+query() {
+  case $1 in
+    CC) echo @CC@ ;;
+    CXX) echo @CXX@ ;;
+    CFLAGS) echo @CFLAGS@ ;;
+    CXXFLAGS) echo @CXXFLAGS@ ;;
+    PREFIX) echo @prefix@ ;;
+    SYSCONFDIR) echo @sysconfdir@ ;;
+    INCLUDEDIR) echo @includedir@ ;;
+    LIBEXECDIR) echo @libexecdir@ ;;
+    BINDIR) echo @bindir@ ;;
+    LOCALSTATEDIR) echo @localstatedir@ ;;
+    RUNTIMEDIR) echo @runtimedir@ ;;
+    LOGDIR) echo @logdir@ ;;
+    *) bail "unrecognized query label: $1" ;;
+  esac
+}
+
+compile() {
+	SRC=$1
+	extension=`echo $SRC | sed -e 's/^.*\.//g'`
+	case $extension in
+		c)
+			MY_CFLAGS="$CPPFLAGS $CFLAGS"
+			MY_CC=$CC
+			;;
+		cpp|cxx|cc|CPP|CXX|CC|C)
+			MY_CFLAGS="$CPPFLAGS $CXXFLAGS"
+			MY_CC=$CXX
+			;;
+		*)
+			bail "unrecognized input file: $SRC"
+			;;
+	esac
+
+	obj=`echo $SRC | sed -e 's/\.[a-z]*$/\.lo/g;'`
+	echo "  compiling $SRC -> $obj"
+	debug "$MY_CC $MY_CFLAGS $PICFLAGS -c $SRC -o $obj"
+	$MY_CC $MY_CFLAGS $PICFLAGS -c $SRC -o $obj ||
+		bail "compilation failed: $MY_CC $MY_CFLAGS $PICFLAGS -c $SRC -o $obj"
+	OBJS="$OBJS $obj"
+	BUILD=1
+}
+
+case $host in
+*-*-darwin*)
+        PICFLAGS="-fPIC"
+        MODULELD="$CC -bundle -flat_namespace -undefined suppress"
+        MODULELDXX="$CXX -bundle -flat_namespace -undefined suppress"
+        MODULEEXT=bundle
+        RLDFLAG="-Wl,-rpath,"
+        ;;
+*-*-solaris*)
+        PICFLAGS="-fpic"
+        if test "x$CC" != "xgcc" ; then
+                CFLAGS="$CFLAGS -mt"
+        	PICFLAGS="-Kpic"
+        fi
+        MODULELD="$CC -G"
+        MODULELDXX="$CXX -G"
+        MODULEEXT=so
+        RLDFLAG="-R"
+        WHOLE_ARCHIVE="-Wl,-z -Wl,allextract"
+        NOWHOLE_ARCHIVE="-Wl,-z -Wl,defaultextract"
+        ;;
+*-*-linux*)
+        LDFLAGS="$LDFLAGS -Wl,-E"
+        CPPFLAGS="$CPPFLAGS"
+        PICFLAGS="-fpic"
+        MODULELD="$CC -shared"
+        MODULELDXX="$CXX -shared"
+        MODULEEXT=so
+        RLDFLAG="-Wl,--rpath="
+        WHOLE_ARCHIVE="-Wl,--whole-archive"
+        NOWHOLE_ARCHIVE="-Wl,--no-whole-archive"
+        ;;
+*-*-freebsd*)
+        PICFLAGS="-fpic"
+        MODULELD="$CC -shared"
+        MODULELDXX="$CXX -shared"
+        MODULEEXT=so
+        RLDFLAG="-Wl,--rpath="
+        ;;
+*)
+        PICFLAGS="-fpic"
+        MODULELD="$CC -shared"
+        MODULEEXT=so
+        RLDFLAG="-Wl,--rpath="
+        ;;
+esac
+
+files=()
+
+LD=$MODULELD
+while getopts "hivl:L:I:c:C:o:q:" OPTION
+do
+	case $OPTION in 
+	v)
+		DEBUGECHO=1
+		;;
+	h)
+		usage
+		exit 1
+		;;
+  q)
+    query "$OPTARG"
+    ;;
+	I)
+		CPPFLAGS="$CPPFLAGS -I$OPTARG"
+		;;
+	L)
+		LDFLAGS="$LDFLAGS -L$OPTARG $RLDFLAG$OPTARG"
+		;;
+	l)
+		LIBS="$LIBS -l$OPTARG"
+		;;
+	o)
+		OBJ=$OPTARG
+		;;
+	i)
+		INSTALL=1
+		;;
+	c)
+		files[${#files[@]}]="$OPTARG"
+		;;
+	C)
+		files[${#files[@]}]="$OPTARG"
+		;;
+	esac
+done
+shift $(( OPTIND - 1))
+
+for file in "${files[@]}" "$@"; do
+	compile $file
+done
+
+if [ "$BUILD" = "1" -a -n "$OBJ" ]; then
+	echo "  linking -> $OBJ"
+	debug "$LD $LDFLAGS -o $OBJ $OBJS $LIBS"
+	$LD $LDFLAGS -o $OBJ $OBJS $LIBS ||
+		bail "link failed: $LD $LDFLAGS -o $OBJ $OBJS $LIBS"
+fi
+
+if [ -n "$OBJ" ]; then
+	if [ -r "$OBJ" ]; then
+		if [ "$INSTALL" = "1" ]; then
+			echo "  installing $OBJ -> $INSTALLDIR/$OBJ"
+			cp $OBJ ${DESTDIR}${INSTALLDIR}/${OBJ}
+			chmod 0755 ${DESTDIR}${INSTALLDIR}/${OBJ}
+		fi
+	else
+		echo "No $OBJ"
+	fi
+fi
-- 
2.30.2